18 #include "fuse_lowlevel.h" 
   20 #include "fuse_misc.h" 
   21 #include "fuse_kernel.h" 
   37 #include <sys/param.h> 
   43 #define FUSE_NODE_SLAB 1 
   49 #ifndef RENAME_EXCHANGE 
   50 #define RENAME_EXCHANGE         (1 << 1)         
   53 #define FUSE_DEFAULT_INTR_SIGNAL SIGUSR1 
   55 #define FUSE_UNKNOWN_INO 0xffffffff 
   56 #define OFFSET_MAX 0x7fffffffffffffffLL 
   58 #define NODE_TABLE_MIN_SIZE 8192 
   72 struct lock_queue_element {
 
   73         struct lock_queue_element *next;
 
   84         bool first_locked : 1;
 
   85         bool second_locked : 1;
 
   96 #define container_of(ptr, type, member) ({                              \ 
   97                         const typeof( ((type *)0)->member ) *__mptr = (ptr); \ 
   98                         (type *)( (char *)__mptr - offsetof(type,member) );}) 
  100 #define list_entry(ptr, type, member)           \ 
  101         container_of(ptr, type, member) 
  104         struct list_head *next;
 
  105         struct list_head *prev;
 
  109         struct list_head list;  
 
  110         struct list_head freelist;
 
  115         struct fuse_session *se;
 
  116         struct node_table name_table;
 
  117         struct node_table id_table;
 
  118         struct list_head lru_table;
 
  120         unsigned int generation;
 
  121         unsigned int hidectr;
 
  122         pthread_mutex_t lock;
 
  126         struct lock_queue_element *lockq;
 
  128         struct list_head partial_slabs;
 
  129         struct list_head full_slabs;
 
  130         pthread_t prune_thread;
 
  143         struct node *name_next;
 
  144         struct node *id_next;
 
  146         unsigned int generation;
 
  152         struct timespec stat_updated;
 
  153         struct timespec mtime;
 
  156         unsigned int is_hidden : 1;
 
  157         unsigned int cache_valid : 1;
 
  159         char inline_name[32];
 
  162 #define TREELOCK_WRITE -1 
  163 #define TREELOCK_WAIT_OFFSET INT_MIN 
  167         struct list_head lru;
 
  168         struct timespec forget_time;
 
  171 struct fuse_direntry {
 
  174         struct fuse_direntry *next;
 
  178         pthread_mutex_t lock;
 
  182         struct fuse_direntry *first;
 
  183         struct fuse_direntry **last;
 
  193 struct fuse_context_i {
 
  204 static pthread_key_t fuse_context_key;
 
  205 static pthread_mutex_t fuse_context_lock = PTHREAD_MUTEX_INITIALIZER;
 
  206 static int fuse_context_ref;
 
  209 static int fuse_register_module(
const char *name,
 
  211                                 struct fusemod_so *so)
 
  217                 fuse_log(FUSE_LOG_ERR, 
"fuse: failed to allocate module\n");
 
  220         mod->name = strdup(name);
 
  222                 fuse_log(FUSE_LOG_ERR, 
"fuse: failed to allocate module name\n");
 
  226         mod->factory = factory;
 
  231         mod->next = fuse_modules;
 
  237 static void fuse_unregister_module(
struct fuse_module *m)
 
  240         for (mp = &fuse_modules; *mp; mp = &(*mp)->next) {
 
  250 static int fuse_load_so_module(
const char *module)
 
  254         struct fusemod_so *so;
 
  257         tmp = malloc(strlen(module) + 64);
 
  259                 fuse_log(FUSE_LOG_ERR, 
"fuse: memory allocation failed\n");
 
  262         sprintf(tmp, 
"libfusemod_%s.so", module);
 
  263         so = calloc(1, 
sizeof(
struct fusemod_so));
 
  265                 fuse_log(FUSE_LOG_ERR, 
"fuse: failed to allocate module so\n");
 
  269         so->handle = dlopen(tmp, RTLD_NOW);
 
  270         if (so->handle == NULL) {
 
  271                 fuse_log(FUSE_LOG_ERR, 
"fuse: dlopen(%s) failed: %s\n",
 
  276         sprintf(tmp, 
"fuse_module_%s_factory", module);
 
  277         *(
void**)(&factory) = dlsym(so->handle, tmp);
 
  278         if (factory == NULL) {
 
  279                 fuse_log(FUSE_LOG_ERR, 
"fuse: symbol <%s> not found in module: %s\n",
 
  283         ret = fuse_register_module(module, factory, so);
 
  298 static struct fuse_module *fuse_find_module(
const char *module)
 
  301         for (m = fuse_modules; m; m = m->next) {
 
  302                 if (strcmp(module, m->name) == 0) {
 
  310 static struct fuse_module *fuse_get_module(
const char *module)
 
  314         pthread_mutex_lock(&fuse_context_lock);
 
  315         m = fuse_find_module(module);
 
  317                 int err = fuse_load_so_module(module);
 
  319                         m = fuse_find_module(module);
 
  321         pthread_mutex_unlock(&fuse_context_lock);
 
  327         pthread_mutex_lock(&fuse_context_lock);
 
  333         if (!m->ctr && m->so) {
 
  334                 struct fusemod_so *so = m->so;
 
  339                         for (mp = &fuse_modules; *mp;) {
 
  341                                         fuse_unregister_module(*mp);
 
  348         } 
else if (!m->ctr) {
 
  349                 fuse_unregister_module(m);
 
  351         pthread_mutex_unlock(&fuse_context_lock);
 
  354 static void init_list_head(
struct list_head *list)
 
  360 static int list_empty(
const struct list_head *head)
 
  362         return head->next == head;
 
  365 static void list_add(
struct list_head *
new, 
struct list_head *prev,
 
  366                      struct list_head *next)
 
  374 static inline void list_add_head(
struct list_head *
new, 
struct list_head *head)
 
  376         list_add(
new, head, head->next);
 
  379 static inline void list_add_tail(
struct list_head *
new, 
struct list_head *head)
 
  381         list_add(
new, head->prev, head);
 
  384 static inline void list_del(
struct list_head *entry)
 
  386         struct list_head *prev = entry->prev;
 
  387         struct list_head *next = entry->next;
 
  393 static inline int lru_enabled(
struct fuse *f)
 
  395         return f->conf.remember > 0;
 
  398 static struct node_lru *node_lru(
struct node *node)
 
  400         return (
struct node_lru *) node;
 
  403 static size_t get_node_size(
struct fuse *f)
 
  406                 return sizeof(
struct node_lru);
 
  408                 return sizeof(
struct node);
 
  411 #ifdef FUSE_NODE_SLAB 
  412 static struct node_slab *list_to_slab(
struct list_head *head)
 
  414         return (
struct node_slab *) head;
 
  417 static struct node_slab *node_to_slab(
struct fuse *f, 
struct node *node)
 
  419         return (
struct node_slab *) (((uintptr_t) node) & ~((uintptr_t) f->pagesize - 1));
 
  422 static int alloc_slab(
struct fuse *f)
 
  425         struct node_slab *slab;
 
  429         size_t node_size = get_node_size(f);
 
  431         mem = mmap(NULL, f->pagesize, PROT_READ | PROT_WRITE,
 
  432                    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 
  434         if (mem == MAP_FAILED)
 
  438         init_list_head(&slab->freelist);
 
  440         num = (f->pagesize - 
sizeof(
struct node_slab)) / node_size;
 
  442         start = (
char *) mem + f->pagesize - num * node_size;
 
  443         for (i = 0; i < num; i++) {
 
  446                 n = (
struct list_head *) (start + i * node_size);
 
  447                 list_add_tail(n, &slab->freelist);
 
  449         list_add_tail(&slab->list, &f->partial_slabs);
 
  454 static struct node *alloc_node(
struct fuse *f)
 
  456         struct node_slab *slab;
 
  457         struct list_head *node;
 
  459         if (list_empty(&f->partial_slabs)) {
 
  460                 int res = alloc_slab(f);
 
  464         slab = list_to_slab(f->partial_slabs.next);
 
  466         node = slab->freelist.next;
 
  468         if (list_empty(&slab->freelist)) {
 
  469                 list_del(&slab->list);
 
  470                 list_add_tail(&slab->list, &f->full_slabs);
 
  472         memset(node, 0, 
sizeof(
struct node));
 
  474         return (
struct node *) node;
 
  477 static void free_slab(
struct fuse *f, 
struct node_slab *slab)
 
  481         list_del(&slab->list);
 
  482         res = munmap(slab, f->pagesize);
 
  484                 fuse_log(FUSE_LOG_WARNING, 
"fuse warning: munmap(%p) failed\n",
 
  488 static void free_node_mem(
struct fuse *f, 
struct node *node)
 
  490         struct node_slab *slab = node_to_slab(f, node);
 
  491         struct list_head *n = (
struct list_head *) node;
 
  495                 if (list_empty(&slab->freelist)) {
 
  496                         list_del(&slab->list);
 
  497                         list_add_tail(&slab->list, &f->partial_slabs);
 
  499                 list_add_head(n, &slab->freelist);
 
  505 static struct node *alloc_node(
struct fuse *f)
 
  507         return (
struct node *) calloc(1, get_node_size(f));
 
  510 static void free_node_mem(
struct fuse *f, 
struct node *node)
 
  517 static size_t id_hash(
struct fuse *f, 
fuse_ino_t ino)
 
  519         uint64_t hash = ((uint32_t) ino * 2654435761U) % f->id_table.size;
 
  520         uint64_t oldhash = hash % (f->id_table.size / 2);
 
  522         if (oldhash >= f->id_table.split)
 
  528 static struct node *get_node_nocheck(
struct fuse *f, 
fuse_ino_t nodeid)
 
  530         size_t hash = id_hash(f, nodeid);
 
  533         for (node = f->id_table.array[hash]; node != NULL; node = node->id_next)
 
  534                 if (node->nodeid == nodeid)
 
  540 static struct node *get_node(
struct fuse *f, 
fuse_ino_t nodeid)
 
  542         struct node *node = get_node_nocheck(f, nodeid);
 
  544                 fuse_log(FUSE_LOG_ERR, 
"fuse internal error: node %llu not found\n",
 
  545                         (
unsigned long long) nodeid);
 
  551 static void curr_time(
struct timespec *now);
 
  552 static double diff_timespec(
const struct timespec *t1,
 
  553                            const struct timespec *t2);
 
  555 static void remove_node_lru(
struct node *node)
 
  557         struct node_lru *lnode = node_lru(node);
 
  558         list_del(&lnode->lru);
 
  559         init_list_head(&lnode->lru);
 
  562 static void set_forget_time(
struct fuse *f, 
struct node *node)
 
  564         struct node_lru *lnode = node_lru(node);
 
  566         list_del(&lnode->lru);
 
  567         list_add_tail(&lnode->lru, &f->lru_table);
 
  568         curr_time(&lnode->forget_time);
 
  571 static void free_node(
struct fuse *f, 
struct node *node)
 
  573         if (node->name != node->inline_name)
 
  575         free_node_mem(f, node);
 
  578 static void node_table_reduce(
struct node_table *t)
 
  580         size_t newsize = t->size / 2;
 
  583         if (newsize < NODE_TABLE_MIN_SIZE)
 
  586         newarray = realloc(t->array, 
sizeof(
struct node *) * newsize);
 
  587         if (newarray != NULL)
 
  591         t->split = t->size / 2;
 
  594 static void remerge_id(
struct fuse *f)
 
  596         struct node_table *t = &f->id_table;
 
  600                 node_table_reduce(t);
 
  602         for (iter = 8; t->split > 0 && iter; iter--) {
 
  606                 upper = &t->array[t->split + t->size / 2];
 
  610                         for (nodep = &t->array[t->split]; *nodep;
 
  611                              nodep = &(*nodep)->id_next);
 
  620 static void unhash_id(
struct fuse *f, 
struct node *node)
 
  622         struct node **nodep = &f->id_table.array[id_hash(f, node->nodeid)];
 
  624         for (; *nodep != NULL; nodep = &(*nodep)->id_next)
 
  625                 if (*nodep == node) {
 
  626                         *nodep = node->id_next;
 
  629                         if(f->id_table.use < f->id_table.size / 4)
 
  635 static int node_table_resize(
struct node_table *t)
 
  637         size_t newsize = t->size * 2;
 
  640         newarray = realloc(t->array, 
sizeof(
struct node *) * newsize);
 
  641         if (newarray == NULL)
 
  645         memset(t->array + t->size, 0, t->size * 
sizeof(
struct node *));
 
  652 static void rehash_id(
struct fuse *f)
 
  654         struct node_table *t = &f->id_table;
 
  659         if (t->split == t->size / 2)
 
  664         for (nodep = &t->array[hash]; *nodep != NULL; nodep = next) {
 
  665                 struct node *node = *nodep;
 
  666                 size_t newhash = id_hash(f, node->nodeid);
 
  668                 if (newhash != hash) {
 
  670                         *nodep = node->id_next;
 
  671                         node->id_next = t->array[newhash];
 
  672                         t->array[newhash] = node;
 
  674                         next = &node->id_next;
 
  677         if (t->split == t->size / 2)
 
  678                 node_table_resize(t);
 
  681 static void hash_id(
struct fuse *f, 
struct node *node)
 
  683         size_t hash = id_hash(f, node->nodeid);
 
  684         node->id_next = f->id_table.array[hash];
 
  685         f->id_table.array[hash] = node;
 
  688         if (f->id_table.use >= f->id_table.size / 2)
 
  692 static size_t name_hash(
struct fuse *f, 
fuse_ino_t parent,
 
  695         uint64_t hash = parent;
 
  698         for (; *name; name++)
 
  699                 hash = hash * 31 + (
unsigned char) *name;
 
  701         hash %= f->name_table.size;
 
  702         oldhash = hash % (f->name_table.size / 2);
 
  703         if (oldhash >= f->name_table.split)
 
  709 static void unref_node(
struct fuse *f, 
struct node *node);
 
  711 static void remerge_name(
struct fuse *f)
 
  713         struct node_table *t = &f->name_table;
 
  717                 node_table_reduce(t);
 
  719         for (iter = 8; t->split > 0 && iter; iter--) {
 
  723                 upper = &t->array[t->split + t->size / 2];
 
  727                         for (nodep = &t->array[t->split]; *nodep;
 
  728                              nodep = &(*nodep)->name_next);
 
  737 static void unhash_name(
struct fuse *f, 
struct node *node)
 
  740                 size_t hash = name_hash(f, node->parent->nodeid, node->name);
 
  741                 struct node **nodep = &f->name_table.array[hash];
 
  743                 for (; *nodep != NULL; nodep = &(*nodep)->name_next)
 
  744                         if (*nodep == node) {
 
  745                                 *nodep = node->name_next;
 
  746                                 node->name_next = NULL;
 
  747                                 unref_node(f, node->parent);
 
  748                                 if (node->name != node->inline_name)
 
  754                                 if (f->name_table.use < f->name_table.size / 4)
 
  759                         "fuse internal error: unable to unhash node: %llu\n",
 
  760                         (
unsigned long long) node->nodeid);
 
  765 static void rehash_name(
struct fuse *f)
 
  767         struct node_table *t = &f->name_table;
 
  772         if (t->split == t->size / 2)
 
  777         for (nodep = &t->array[hash]; *nodep != NULL; nodep = next) {
 
  778                 struct node *node = *nodep;
 
  779                 size_t newhash = name_hash(f, node->parent->nodeid, node->name);
 
  781                 if (newhash != hash) {
 
  783                         *nodep = node->name_next;
 
  784                         node->name_next = t->array[newhash];
 
  785                         t->array[newhash] = node;
 
  787                         next = &node->name_next;
 
  790         if (t->split == t->size / 2)
 
  791                 node_table_resize(t);
 
  794 static int hash_name(
struct fuse *f, 
struct node *node, 
fuse_ino_t parentid,
 
  797         size_t hash = name_hash(f, parentid, name);
 
  798         struct node *parent = get_node(f, parentid);
 
  799         if (strlen(name) < 
sizeof(node->inline_name)) {
 
  800                 strcpy(node->inline_name, name);
 
  801                 node->name = node->inline_name;
 
  803                 node->name = strdup(name);
 
  804                 if (node->name == NULL)
 
  809         node->parent = parent;
 
  810         node->name_next = f->name_table.array[hash];
 
  811         f->name_table.array[hash] = node;
 
  814         if (f->name_table.use >= f->name_table.size / 2)
 
  820 static void delete_node(
struct fuse *f, 
struct node *node)
 
  823                 fuse_log(FUSE_LOG_DEBUG, 
"DELETE: %llu\n",
 
  824                         (
unsigned long long) node->nodeid);
 
  826         assert(node->treelock == 0);
 
  827         unhash_name(f, node);
 
  829                 remove_node_lru(node);
 
  834 static void unref_node(
struct fuse *f, 
struct node *node)
 
  836         assert(node->refctr > 0);
 
  839                 delete_node(f, node);
 
  845                 f->ctr = (f->ctr + 1) & 0xffffffff;
 
  848         } 
while (f->ctr == 0 || f->ctr == FUSE_UNKNOWN_INO ||
 
  849                  get_node_nocheck(f, f->ctr) != NULL);
 
  853 static struct node *lookup_node(
struct fuse *f, 
fuse_ino_t parent,
 
  856         size_t hash = name_hash(f, parent, name);
 
  859         for (node = f->name_table.array[hash]; node != NULL; node = node->name_next)
 
  860                 if (node->parent->nodeid == parent &&
 
  861                     strcmp(node->name, name) == 0)
 
  867 static void inc_nlookup(
struct node *node)
 
  874 static struct node *find_node(
struct fuse *f, 
fuse_ino_t parent,
 
  879         pthread_mutex_lock(&f->lock);
 
  881                 node = get_node(f, parent);
 
  883                 node = lookup_node(f, parent, name);
 
  885                 node = alloc_node(f);
 
  889                 node->nodeid = next_id(f);
 
  890                 node->generation = f->generation;
 
  891                 if (f->conf.remember)
 
  894                 if (hash_name(f, node, parent, name) == -1) {
 
  900                 if (lru_enabled(f)) {
 
  901                         struct node_lru *lnode = node_lru(node);
 
  902                         init_list_head(&lnode->lru);
 
  904         } 
else if (lru_enabled(f) && node->nlookup == 1) {
 
  905                 remove_node_lru(node);
 
  909         pthread_mutex_unlock(&f->lock);
 
  913 static int lookup_path_in_cache(
struct fuse *f,
 
  916         char *tmp = strdup(path);
 
  920         pthread_mutex_lock(&f->lock);
 
  925         char *path_element = strtok_r(tmp, 
"/", &save_ptr);
 
  926         while (path_element != NULL) {
 
  927                 struct node *node = lookup_node(f, ino, path_element);
 
  933                 path_element = strtok_r(NULL, 
"/", &save_ptr);
 
  935         pthread_mutex_unlock(&f->lock);
 
  943 static char *add_name(
char **buf, 
unsigned *bufsize, 
char *s, 
const char *name)
 
  945         size_t len = strlen(name);
 
  947         if (s - len <= *buf) {
 
  948                 unsigned pathlen = *bufsize - (s - *buf);
 
  949                 unsigned newbufsize = *bufsize;
 
  952                 while (newbufsize < pathlen + len + 1) {
 
  953                         if (newbufsize >= 0x80000000)
 
  954                                 newbufsize = 0xffffffff;
 
  959                 newbuf = realloc(*buf, newbufsize);
 
  964                 s = newbuf + newbufsize - pathlen;
 
  965                 memmove(s, newbuf + *bufsize - pathlen, pathlen);
 
  966                 *bufsize = newbufsize;
 
  969         memcpy(s, name, len);
 
  976 static void unlock_path(
struct fuse *f, 
fuse_ino_t nodeid, 
struct node *wnode,
 
  982                 assert(wnode->treelock == TREELOCK_WRITE);
 
  986         for (node = get_node(f, nodeid);
 
  987              node != end && node->nodeid != 
FUSE_ROOT_ID; node = node->parent) {
 
  988                 assert(node->treelock != 0);
 
  989                 assert(node->treelock != TREELOCK_WAIT_OFFSET);
 
  990                 assert(node->treelock != TREELOCK_WRITE);
 
  992                 if (node->treelock == TREELOCK_WAIT_OFFSET)
 
  997 static int try_get_path(
struct fuse *f, 
fuse_ino_t nodeid, 
const char *name,
 
  998                         char **path, 
struct node **wnodep, 
bool need_lock)
 
 1000         unsigned bufsize = 256;
 
 1004         struct node *wnode = NULL;
 
 1010         buf = malloc(bufsize);
 
 1014         s = buf + bufsize - 1;
 
 1018                 s = add_name(&buf, &bufsize, s, name);
 
 1026                 wnode = lookup_node(f, nodeid, name);
 
 1028                         if (wnode->treelock != 0) {
 
 1029                                 if (wnode->treelock > 0)
 
 1030                                         wnode->treelock += TREELOCK_WAIT_OFFSET;
 
 1034                         wnode->treelock = TREELOCK_WRITE;
 
 1038         for (node = get_node(f, nodeid); node->nodeid != 
FUSE_ROOT_ID;
 
 1039              node = node->parent) {
 
 1041                 if (node->name == NULL || node->parent == NULL)
 
 1045                 s = add_name(&buf, &bufsize, s, node->name);
 
 1051                         if (node->treelock < 0)
 
 1059                 memmove(buf, s, bufsize - (s - buf));
 
 1071                 unlock_path(f, nodeid, wnode, node);
 
 1079 static void queue_element_unlock(
struct fuse *f, 
struct lock_queue_element *qe)
 
 1083         if (qe->first_locked) {
 
 1084                 wnode = qe->wnode1 ? *qe->wnode1 : NULL;
 
 1085                 unlock_path(f, qe->nodeid1, wnode, NULL);
 
 1086                 qe->first_locked = 
false;
 
 1088         if (qe->second_locked) {
 
 1089                 wnode = qe->wnode2 ? *qe->wnode2 : NULL;
 
 1090                 unlock_path(f, qe->nodeid2, wnode, NULL);
 
 1091                 qe->second_locked = 
false;
 
 1095 static void queue_element_wakeup(
struct fuse *f, 
struct lock_queue_element *qe)
 
 1098         bool first = (qe == f->lockq);
 
 1102                 if (get_node(f, qe->nodeid1)->treelock == 0)
 
 1103                         pthread_cond_signal(&qe->cond);
 
 1108         if (!qe->first_locked) {
 
 1109                 err = try_get_path(f, qe->nodeid1, qe->name1, qe->path1,
 
 1112                         qe->first_locked = 
true;
 
 1113                 else if (err != -EAGAIN)
 
 1116         if (!qe->second_locked && qe->path2) {
 
 1117                 err = try_get_path(f, qe->nodeid2, qe->name2, qe->path2,
 
 1120                         qe->second_locked = 
true;
 
 1121                 else if (err != -EAGAIN)
 
 1125         if (qe->first_locked && (qe->second_locked || !qe->path2)) {
 
 1138                 queue_element_unlock(f, qe);
 
 1144         queue_element_unlock(f, qe);
 
 1148         pthread_cond_signal(&qe->cond);
 
 1151 static void wake_up_queued(
struct fuse *f)
 
 1153         struct lock_queue_element *qe;
 
 1155         for (qe = f->lockq; qe != NULL; qe = qe->next)
 
 1156                 queue_element_wakeup(f, qe);
 
 1159 static void debug_path(
struct fuse *f, 
const char *msg, 
fuse_ino_t nodeid,
 
 1160                        const char *name, 
bool wr)
 
 1162         if (f->conf.debug) {
 
 1163                 struct node *wnode = NULL;
 
 1166                         wnode = lookup_node(f, nodeid, name);
 
 1169                         fuse_log(FUSE_LOG_DEBUG, 
"%s %llu (w)\n",
 
 1170                                 msg, (
unsigned long long) wnode->nodeid);
 
 1172                         fuse_log(FUSE_LOG_DEBUG, 
"%s %llu\n",
 
 1173                                 msg, (
unsigned long long) nodeid);
 
 1178 static void queue_path(
struct fuse *f, 
struct lock_queue_element *qe)
 
 1180         struct lock_queue_element **qp;
 
 1183         qe->first_locked = 
false;
 
 1184         qe->second_locked = 
false;
 
 1185         pthread_cond_init(&qe->cond, NULL);
 
 1187         for (qp = &f->lockq; *qp != NULL; qp = &(*qp)->next);
 
 1191 static void dequeue_path(
struct fuse *f, 
struct lock_queue_element *qe)
 
 1193         struct lock_queue_element **qp;
 
 1195         pthread_cond_destroy(&qe->cond);
 
 1196         for (qp = &f->lockq; *qp != qe; qp = &(*qp)->next);
 
 1200 static int wait_path(
struct fuse *f, 
struct lock_queue_element *qe)
 
 1205                 pthread_cond_wait(&qe->cond, &f->lock);
 
 1206         } 
while (!qe->done);
 
 1208         dequeue_path(f, qe);
 
 1213 static int get_path_common(
struct fuse *f, 
fuse_ino_t nodeid, 
const char *name,
 
 1214                            char **path, 
struct node **wnode)
 
 1218         pthread_mutex_lock(&f->lock);
 
 1219         err = try_get_path(f, nodeid, name, path, wnode, 
true);
 
 1220         if (err == -EAGAIN) {
 
 1221                 struct lock_queue_element qe = {
 
 1227                 debug_path(f, 
"QUEUE PATH", nodeid, name, !!wnode);
 
 1228                 err = wait_path(f, &qe);
 
 1229                 debug_path(f, 
"DEQUEUE PATH", nodeid, name, !!wnode);
 
 1231         pthread_mutex_unlock(&f->lock);
 
 1236 static int get_path(
struct fuse *f, 
fuse_ino_t nodeid, 
char **path)
 
 1238         return get_path_common(f, nodeid, NULL, path, NULL);
 
 1241 static int get_path_nullok(
struct fuse *f, 
fuse_ino_t nodeid, 
char **path)
 
 1245         if (f->conf.nullpath_ok) {
 
 1248                 err = get_path_common(f, nodeid, NULL, path, NULL);
 
 1256 static int get_path_name(
struct fuse *f, 
fuse_ino_t nodeid, 
const char *name,
 
 1259         return get_path_common(f, nodeid, name, path, NULL);
 
 1262 static int get_path_wrlock(
struct fuse *f, 
fuse_ino_t nodeid, 
const char *name,
 
 1263                            char **path, 
struct node **wnode)
 
 1265         return get_path_common(f, nodeid, name, path, wnode);
 
 1268 #if defined(__FreeBSD__) 
 1269 #define CHECK_DIR_LOOP 
 1272 #if defined(CHECK_DIR_LOOP) 
 1273 static int check_dir_loop(
struct fuse *f,
 
 1277         struct node *node, *node1, *node2;
 
 1280         node1 = lookup_node(f, nodeid1, name1);
 
 1281         id1 = node1 ? node1->nodeid : nodeid1;
 
 1283         node2 = lookup_node(f, nodeid2, name2);
 
 1284         id2 = node2 ? node2->nodeid : nodeid2;
 
 1286         for (node = get_node(f, id2); node->nodeid != 
FUSE_ROOT_ID;
 
 1287              node = node->parent) {
 
 1288                 if (node->name == NULL || node->parent == NULL)
 
 1291                 if (node->nodeid != id2 && node->nodeid == id1)
 
 1297                 for (node = get_node(f, id1); node->nodeid != 
FUSE_ROOT_ID;
 
 1298                      node = node->parent) {
 
 1299                         if (node->name == NULL || node->parent == NULL)
 
 1302                         if (node->nodeid != id1 && node->nodeid == id2)
 
 1311 static int try_get_path2(
struct fuse *f, 
fuse_ino_t nodeid1, 
const char *name1,
 
 1313                          char **path1, 
char **path2,
 
 1314                          struct node **wnode1, 
struct node **wnode2)
 
 1319         err = try_get_path(f, nodeid1, name1, path1, wnode1, 
true);
 
 1321                 err = try_get_path(f, nodeid2, name2, path2, wnode2, 
true);
 
 1323                         struct node *wn1 = wnode1 ? *wnode1 : NULL;
 
 1325                         unlock_path(f, nodeid1, wn1, NULL);
 
 1332 static int get_path2(
struct fuse *f, 
fuse_ino_t nodeid1, 
const char *name1,
 
 1334                      char **path1, 
char **path2,
 
 1335                      struct node **wnode1, 
struct node **wnode2)
 
 1339         pthread_mutex_lock(&f->lock);
 
 1341 #if defined(CHECK_DIR_LOOP) 
 1345                 err = check_dir_loop(f, nodeid1, name1, nodeid2, name2);
 
 1351         err = try_get_path2(f, nodeid1, name1, nodeid2, name2,
 
 1352                             path1, path2, wnode1, wnode2);
 
 1353         if (err == -EAGAIN) {
 
 1354                 struct lock_queue_element qe = {
 
 1365                 debug_path(f, 
"QUEUE PATH1", nodeid1, name1, !!wnode1);
 
 1366                 debug_path(f, 
"      PATH2", nodeid2, name2, !!wnode2);
 
 1367                 err = wait_path(f, &qe);
 
 1368                 debug_path(f, 
"DEQUEUE PATH1", nodeid1, name1, !!wnode1);
 
 1369                 debug_path(f, 
"        PATH2", nodeid2, name2, !!wnode2);
 
 1372 #if defined(CHECK_DIR_LOOP) 
 1375         pthread_mutex_unlock(&f->lock);
 
 1380 static void free_path_wrlock(
struct fuse *f, 
fuse_ino_t nodeid,
 
 1381                              struct node *wnode, 
char *path)
 
 1383         pthread_mutex_lock(&f->lock);
 
 1384         unlock_path(f, nodeid, wnode, NULL);
 
 1387         pthread_mutex_unlock(&f->lock);
 
 1391 static void free_path(
struct fuse *f, 
fuse_ino_t nodeid, 
char *path)
 
 1394                 free_path_wrlock(f, nodeid, NULL, path);
 
 1398                        struct node *wnode1, 
struct node *wnode2,
 
 1399                        char *path1, 
char *path2)
 
 1401         pthread_mutex_lock(&f->lock);
 
 1402         unlock_path(f, nodeid1, wnode1, NULL);
 
 1403         unlock_path(f, nodeid2, wnode2, NULL);
 
 1405         pthread_mutex_unlock(&f->lock);
 
 1410 static void forget_node(
struct fuse *f, 
fuse_ino_t nodeid, uint64_t nlookup)
 
 1415         pthread_mutex_lock(&f->lock);
 
 1416         node = get_node(f, nodeid);
 
 1422         while (node->nlookup == nlookup && node->treelock) {
 
 1423                 struct lock_queue_element qe = {
 
 1427                 debug_path(f, 
"QUEUE PATH (forget)", nodeid, NULL, 
false);
 
 1431                         pthread_cond_wait(&qe.cond, &f->lock);
 
 1432                 } 
while (node->nlookup == nlookup && node->treelock);
 
 1434                 dequeue_path(f, &qe);
 
 1435                 debug_path(f, 
"DEQUEUE_PATH (forget)", nodeid, NULL, 
false);
 
 1438         assert(node->nlookup >= nlookup);
 
 1439         node->nlookup -= nlookup;
 
 1440         if (!node->nlookup) {
 
 1441                 unref_node(f, node);
 
 1442         } 
else if (lru_enabled(f) && node->nlookup == 1) {
 
 1443                 set_forget_time(f, node);
 
 1445         pthread_mutex_unlock(&f->lock);
 
 1448 static void unlink_node(
struct fuse *f, 
struct node *node)
 
 1450         if (f->conf.remember) {
 
 1451                 assert(node->nlookup > 1);
 
 1454         unhash_name(f, node);
 
 1457 static void remove_node(
struct fuse *f, 
fuse_ino_t dir, 
const char *name)
 
 1461         pthread_mutex_lock(&f->lock);
 
 1462         node = lookup_node(f, dir, name);
 
 1464                 unlink_node(f, node);
 
 1465         pthread_mutex_unlock(&f->lock);
 
 1468 static int rename_node(
struct fuse *f, 
fuse_ino_t olddir, 
const char *oldname,
 
 1469                        fuse_ino_t newdir, 
const char *newname, 
int hide)
 
 1472         struct node *newnode;
 
 1475         pthread_mutex_lock(&f->lock);
 
 1476         node  = lookup_node(f, olddir, oldname);
 
 1477         newnode  = lookup_node(f, newdir, newname);
 
 1481         if (newnode != NULL) {
 
 1483                         fuse_log(FUSE_LOG_ERR, 
"fuse: hidden file got created during hiding\n");
 
 1487                 unlink_node(f, newnode);
 
 1490         unhash_name(f, node);
 
 1491         if (hash_name(f, node, newdir, newname) == -1) {
 
 1497                 node->is_hidden = 1;
 
 1500         pthread_mutex_unlock(&f->lock);
 
 1504 static int exchange_node(
struct fuse *f, 
fuse_ino_t olddir, 
const char *oldname,
 
 1507         struct node *oldnode;
 
 1508         struct node *newnode;
 
 1511         pthread_mutex_lock(&f->lock);
 
 1512         oldnode  = lookup_node(f, olddir, oldname);
 
 1513         newnode  = lookup_node(f, newdir, newname);
 
 1516                 unhash_name(f, oldnode);
 
 1518                 unhash_name(f, newnode);
 
 1522                 if (hash_name(f, oldnode, newdir, newname) == -1)
 
 1526                 if (hash_name(f, newnode, olddir, oldname) == -1)
 
 1531         pthread_mutex_unlock(&f->lock);
 
 1535 static void set_stat(
struct fuse *f, 
fuse_ino_t nodeid, 
struct stat *stbuf)
 
 1537         if (!f->conf.use_ino)
 
 1538                 stbuf->st_ino = nodeid;
 
 1539         if (f->conf.set_mode)
 
 1540                 stbuf->st_mode = (stbuf->st_mode & S_IFMT) |
 
 1541                                  (0777 & ~f->conf.umask);
 
 1542         if (f->conf.set_uid)
 
 1543                 stbuf->st_uid = f->conf.uid;
 
 1544         if (f->conf.set_gid)
 
 1545                 stbuf->st_gid = f->conf.gid;
 
 1553 static void fuse_intr_sighandler(
int sig)
 
 1559 struct fuse_intr_data {
 
 1561         pthread_cond_t cond;
 
 1565 static void fuse_interrupt(
fuse_req_t req, 
void *d_)
 
 1567         struct fuse_intr_data *d = d_;
 
 1568         struct fuse *f = req_fuse(req);
 
 1570         if (d->id == pthread_self())
 
 1573         pthread_mutex_lock(&f->lock);
 
 1574         while (!d->finished) {
 
 1576                 struct timespec timeout;
 
 1578                 pthread_kill(d->id, f->conf.intr_signal);
 
 1579                 gettimeofday(&now, NULL);
 
 1580                 timeout.tv_sec = now.tv_sec + 1;
 
 1581                 timeout.tv_nsec = now.tv_usec * 1000;
 
 1582                 pthread_cond_timedwait(&d->cond, &f->lock, &timeout);
 
 1584         pthread_mutex_unlock(&f->lock);
 
 1587 static void fuse_do_finish_interrupt(
struct fuse *f, 
fuse_req_t req,
 
 1588                                      struct fuse_intr_data *d)
 
 1590         pthread_mutex_lock(&f->lock);
 
 1592         pthread_cond_broadcast(&d->cond);
 
 1593         pthread_mutex_unlock(&f->lock);
 
 1595         pthread_cond_destroy(&d->cond);
 
 1598 static void fuse_do_prepare_interrupt(
fuse_req_t req, 
struct fuse_intr_data *d)
 
 1600         d->id = pthread_self();
 
 1601         pthread_cond_init(&d->cond, NULL);
 
 1606 static inline void fuse_finish_interrupt(
struct fuse *f, 
fuse_req_t req,
 
 1607                                          struct fuse_intr_data *d)
 
 1610                 fuse_do_finish_interrupt(f, req, d);
 
 1613 static inline void fuse_prepare_interrupt(
struct fuse *f, 
fuse_req_t req,
 
 1614                                           struct fuse_intr_data *d)
 
 1617                 fuse_do_prepare_interrupt(req, d);
 
 1621                               char* buf, 
size_t len)
 
 1625         snprintf(buf, len, 
"%llu", (
unsigned long long) fi->
fh);
 
 1629 int fuse_fs_getattr(
struct fuse_fs *fs, 
const char *path, 
struct stat *buf,
 
 1633         if (fs->op.getattr) {
 
 1636                         fuse_log(FUSE_LOG_DEBUG, 
"getattr[%s] %s\n",
 
 1637                                 file_info_string(fi, buf, 
sizeof(buf)),
 
 1640                 return fs->op.getattr(path, buf, fi);
 
 1646 int fuse_fs_rename(
struct fuse_fs *fs, 
const char *oldpath,
 
 1647                    const char *newpath, 
unsigned int flags)
 
 1650         if (fs->op.rename) {
 
 1652                         fuse_log(FUSE_LOG_DEBUG, 
"rename %s %s 0x%x\n", oldpath, newpath,
 
 1655                 return fs->op.rename(oldpath, newpath, flags);
 
 1661 int fuse_fs_unlink(
struct fuse_fs *fs, 
const char *path)
 
 1664         if (fs->op.unlink) {
 
 1666                         fuse_log(FUSE_LOG_DEBUG, 
"unlink %s\n", path);
 
 1668                 return fs->op.unlink(path);
 
 1674 int fuse_fs_rmdir(
struct fuse_fs *fs, 
const char *path)
 
 1679                         fuse_log(FUSE_LOG_DEBUG, 
"rmdir %s\n", path);
 
 1681                 return fs->op.rmdir(path);
 
 1687 int fuse_fs_symlink(
struct fuse_fs *fs, 
const char *linkname, 
const char *path)
 
 1690         if (fs->op.symlink) {
 
 1692                         fuse_log(FUSE_LOG_DEBUG, 
"symlink %s %s\n", linkname, path);
 
 1694                 return fs->op.symlink(linkname, path);
 
 1700 int fuse_fs_link(
struct fuse_fs *fs, 
const char *oldpath, 
const char *newpath)
 
 1705                         fuse_log(FUSE_LOG_DEBUG, 
"link %s %s\n", oldpath, newpath);
 
 1707                 return fs->op.link(oldpath, newpath);
 
 1713 int fuse_fs_release(
struct fuse_fs *fs,  
const char *path,
 
 1717         if (fs->op.release) {
 
 1719                         fuse_log(FUSE_LOG_DEBUG, 
"release%s[%llu] flags: 0x%x\n",
 
 1720                                 fi->
flush ? 
"+flush" : 
"",
 
 1721                                 (
unsigned long long) fi->
fh, fi->
flags);
 
 1723                 return fs->op.release(path, fi);
 
 1729 int fuse_fs_opendir(
struct fuse_fs *fs, 
const char *path,
 
 1733         if (fs->op.opendir) {
 
 1737                         fuse_log(FUSE_LOG_DEBUG, 
"opendir flags: 0x%x %s\n", fi->
flags,
 
 1740                 err = fs->op.opendir(path, fi);
 
 1742                 if (fs->debug && !err)
 
 1743                         fuse_log(FUSE_LOG_DEBUG, 
"   opendir[%llu] flags: 0x%x %s\n",
 
 1744                                 (
unsigned long long) fi->
fh, fi->
flags, path);
 
 1752 int fuse_fs_open(
struct fuse_fs *fs, 
const char *path,
 
 1760                         fuse_log(FUSE_LOG_DEBUG, 
"open flags: 0x%x %s\n", fi->
flags,
 
 1763                 err = fs->op.open(path, fi);
 
 1765                 if (fs->debug && !err)
 
 1766                         fuse_log(FUSE_LOG_DEBUG, 
"   open[%llu] flags: 0x%x %s\n",
 
 1767                                 (
unsigned long long) fi->
fh, fi->
flags, path);
 
 1775 static void fuse_free_buf(
struct fuse_bufvec *buf)
 
 1780                 for (i = 0; i < buf->
count; i++)
 
 1787 int fuse_fs_read_buf(
struct fuse_fs *fs, 
const char *path,
 
 1788                      struct fuse_bufvec **bufp, 
size_t size, off_t off,
 
 1792         if (fs->op.read || fs->op.read_buf) {
 
 1797                                 "read[%llu] %zu bytes from %llu flags: 0x%x\n",
 
 1798                                 (
unsigned long long) fi->
fh,
 
 1799                                 size, (
unsigned long long) off, fi->
flags);
 
 1801                 if (fs->op.read_buf) {
 
 1802                         res = fs->op.read_buf(path, bufp, size, off, fi);
 
 1816                         *
buf = FUSE_BUFVEC_INIT(size);
 
 1820                         res = fs->op.read(path, mem, size, 
off, fi);
 
 1825                 if (fs->debug && res >= 0)
 
 1826                         fuse_log(FUSE_LOG_DEBUG, 
"   read[%llu] %zu bytes from %llu\n",
 
 1827                                 (
unsigned long long) fi->
fh,
 
 1829                                 (
unsigned long long) 
off);
 
 1831                         fuse_log(FUSE_LOG_ERR, 
"fuse: read too many bytes\n");
 
 1842 int fuse_fs_read(
struct fuse_fs *fs, 
const char *path, 
char *mem, 
size_t size,
 
 1846         if (fs->op.read || fs->op.read_buf) {
 
 1851                                 "read[%llu] %zu bytes from %llu flags: 0x%x\n",
 
 1852                                 (
unsigned long long) fi->
fh,
 
 1853                                 size, (
unsigned long long) 
off, fi->
flags);
 
 1855                 if (fs->op.read_buf) {
 
 1858                         res = fs->op.read_buf(path, &
buf, size, 
off, fi);
 
 1867                         res = fs->op.read(path, mem, size, 
off, fi);
 
 1870                 if (fs->debug && res >= 0)
 
 1871                         fuse_log(FUSE_LOG_DEBUG, 
"   read[%llu] %u bytes from %llu\n",
 
 1872                                 (
unsigned long long) fi->
fh,
 
 1874                                 (
unsigned long long) 
off);
 
 1875                 if (res >= 0 && res > (
int) size)
 
 1876                         fuse_log(FUSE_LOG_ERR, 
"fuse: read too many bytes\n");
 
 1884 int fuse_fs_write_buf(
struct fuse_fs *fs, 
const char *path,
 
 1889         if (fs->op.write_buf || fs->op.write) {
 
 1893                 assert(
buf->idx == 0 && 
buf->off == 0);
 
 1896                                 "write%s[%llu] %zu bytes to %llu flags: 0x%x\n",
 
 1898                                 (
unsigned long long) fi->
fh,
 
 1900                                 (
unsigned long long) 
off,
 
 1903                 if (fs->op.write_buf) {
 
 1904                         res = fs->op.write_buf(path, 
buf, 
off, fi);
 
 1910                         if (
buf->count == 1 &&
 
 1912                                 flatbuf = &
buf->buf[0];
 
 1925                                 flatbuf = &tmp.
buf[0];
 
 1928                         res = fs->op.write(path, flatbuf->
mem, flatbuf->
size,
 
 1934                 if (fs->debug && res >= 0)
 
 1935                         fuse_log(FUSE_LOG_DEBUG, 
"   write%s[%llu] %u bytes to %llu\n",
 
 1937                                 (
unsigned long long) fi->
fh, res,
 
 1938                                 (
unsigned long long) 
off);
 
 1939                 if (res > (
int) size)
 
 1940                         fuse_log(FUSE_LOG_ERR, 
"fuse: wrote too many bytes\n");
 
 1948 int fuse_fs_write(
struct fuse_fs *fs, 
const char *path, 
const char *mem,
 
 1953         bufv.
buf[0].
mem = (
void *) mem;
 
 1955         return fuse_fs_write_buf(fs, path, &bufv, 
off, fi);
 
 1958 int fuse_fs_fsync(
struct fuse_fs *fs, 
const char *path, 
int datasync,
 
 1964                         fuse_log(FUSE_LOG_DEBUG, 
"fsync[%llu] datasync: %i\n",
 
 1965                                 (
unsigned long long) fi->
fh, datasync);
 
 1967                 return fs->op.fsync(path, datasync, fi);
 
 1973 int fuse_fs_fsyncdir(
struct fuse_fs *fs, 
const char *path, 
int datasync,
 
 1977         if (fs->op.fsyncdir) {
 
 1979                         fuse_log(FUSE_LOG_DEBUG, 
"fsyncdir[%llu] datasync: %i\n",
 
 1980                                 (
unsigned long long) fi->
fh, datasync);
 
 1982                 return fs->op.fsyncdir(path, datasync, fi);
 
 1988 int fuse_fs_flush(
struct fuse_fs *fs, 
const char *path,
 
 1994                         fuse_log(FUSE_LOG_DEBUG, 
"flush[%llu]\n",
 
 1995                                 (
unsigned long long) fi->
fh);
 
 1997                 return fs->op.flush(path, fi);
 
 2003 int fuse_fs_statfs(
struct fuse_fs *fs, 
const char *path, 
struct statvfs *
buf)
 
 2006         if (fs->op.statfs) {
 
 2008                         fuse_log(FUSE_LOG_DEBUG, 
"statfs %s\n", path);
 
 2010                 return fs->op.statfs(path, 
buf);
 
 2012                 buf->f_namemax = 255;
 
 2018 int fuse_fs_releasedir(
struct fuse_fs *fs, 
const char *path,
 
 2022         if (fs->op.releasedir) {
 
 2024                         fuse_log(FUSE_LOG_DEBUG, 
"releasedir[%llu] flags: 0x%x\n",
 
 2025                                 (
unsigned long long) fi->
fh, fi->
flags);
 
 2027                 return fs->op.releasedir(path, fi);
 
 2033 int fuse_fs_readdir(
struct fuse_fs *fs, 
const char *path, 
void *
buf,
 
 2039         if (fs->op.readdir) {
 
 2041                         fuse_log(FUSE_LOG_DEBUG, 
"readdir%s[%llu] from %llu\n",
 
 2043                                 (
unsigned long long) fi->
fh,
 
 2044                                 (
unsigned long long) 
off);
 
 2047                 return fs->op.readdir(path, 
buf, filler, 
off, fi, flags);
 
 2053 int fuse_fs_create(
struct fuse_fs *fs, 
const char *path, mode_t mode,
 
 2057         if (fs->op.create) {
 
 2062                                 "create flags: 0x%x %s 0%o umask=0%03o\n",
 
 2063                                 fi->
flags, path, mode,
 
 2066                 err = fs->op.create(path, mode, fi);
 
 2068                 if (fs->debug && !err)
 
 2069                         fuse_log(FUSE_LOG_DEBUG, 
"   create[%llu] flags: 0x%x %s\n",
 
 2070                                 (
unsigned long long) fi->
fh, fi->
flags, path);
 
 2078 int fuse_fs_lock(
struct fuse_fs *fs, 
const char *path,
 
 2084                         fuse_log(FUSE_LOG_DEBUG, 
"lock[%llu] %s %s start: %llu len: %llu pid: %llu\n",
 
 2085                                 (
unsigned long long) fi->
fh,
 
 2086                                 (cmd == F_GETLK ? 
"F_GETLK" :
 
 2087                                  (cmd == F_SETLK ? 
"F_SETLK" :
 
 2088                                   (cmd == F_SETLKW ? 
"F_SETLKW" : 
"???"))),
 
 2089                                 (lock->l_type == F_RDLCK ? 
"F_RDLCK" :
 
 2090                                  (lock->l_type == F_WRLCK ? 
"F_WRLCK" :
 
 2091                                   (lock->l_type == F_UNLCK ? 
"F_UNLCK" :
 
 2093                                 (
unsigned long long) lock->l_start,
 
 2094                                 (
unsigned long long) lock->l_len,
 
 2095                                 (
unsigned long long) lock->l_pid);
 
 2097                 return fs->op.lock(path, fi, cmd, lock);
 
 2103 int fuse_fs_flock(
struct fuse_fs *fs, 
const char *path,
 
 2109                         int xop = op & ~LOCK_NB;
 
 2111                         fuse_log(FUSE_LOG_DEBUG, 
"lock[%llu] %s%s\n",
 
 2112                                 (
unsigned long long) fi->
fh,
 
 2113                                 xop == LOCK_SH ? 
"LOCK_SH" :
 
 2114                                 (xop == LOCK_EX ? 
"LOCK_EX" :
 
 2115                                  (xop == LOCK_UN ? 
"LOCK_UN" : 
"???")),
 
 2116                                 (op & LOCK_NB) ? 
"|LOCK_NB" : 
"");
 
 2118                 return fs->op.flock(path, fi, op);
 
 2124 int fuse_fs_chown(
struct fuse_fs *fs, 
const char *path, uid_t uid,
 
 2131                         fuse_log(FUSE_LOG_DEBUG, 
"chown[%s] %s %lu %lu\n",
 
 2132                                 file_info_string(fi, 
buf, 
sizeof(
buf)),
 
 2133                                 path, (
unsigned long) uid, (
unsigned long) gid);
 
 2135                 return fs->op.chown(path, uid, gid, fi);
 
 2141 int fuse_fs_truncate(
struct fuse_fs *fs, 
const char *path, off_t size,
 
 2145         if (fs->op.truncate) {
 
 2148                         fuse_log(FUSE_LOG_DEBUG, 
"truncate[%s] %llu\n",
 
 2149                                 file_info_string(fi, 
buf, 
sizeof(
buf)),
 
 2150                                 (
unsigned long long) size);
 
 2152                 return fs->op.truncate(path, size, fi);
 
 2158 int fuse_fs_utimens(
struct fuse_fs *fs, 
const char *path,
 
 2162         if (fs->op.utimens) {
 
 2165                         fuse_log(FUSE_LOG_DEBUG, 
"utimens[%s] %s %li.%09lu %li.%09lu\n",
 
 2166                                 file_info_string(fi, 
buf, 
sizeof(
buf)),
 
 2167                                 path, tv[0].tv_sec, tv[0].tv_nsec,
 
 2168                                 tv[1].tv_sec, tv[1].tv_nsec);
 
 2170                 return fs->op.utimens(path, tv, fi);
 
 2176 int fuse_fs_access(
struct fuse_fs *fs, 
const char *path, 
int mask)
 
 2179         if (fs->op.access) {
 
 2181                         fuse_log(FUSE_LOG_DEBUG, 
"access %s 0%o\n", path, mask);
 
 2183                 return fs->op.access(path, mask);
 
 2189 int fuse_fs_readlink(
struct fuse_fs *fs, 
const char *path, 
char *
buf,
 
 2193         if (fs->op.readlink) {
 
 2195                         fuse_log(FUSE_LOG_DEBUG, 
"readlink %s %lu\n", path,
 
 2196                                 (
unsigned long) len);
 
 2198                 return fs->op.readlink(path, 
buf, len);
 
 2204 int fuse_fs_mknod(
struct fuse_fs *fs, 
const char *path, mode_t mode,
 
 2210                         fuse_log(FUSE_LOG_DEBUG, 
"mknod %s 0%o 0x%llx umask=0%03o\n",
 
 2211                                 path, mode, (
unsigned long long) rdev,
 
 2214                 return fs->op.mknod(path, mode, rdev);
 
 2220 int fuse_fs_mkdir(
struct fuse_fs *fs, 
const char *path, mode_t mode)
 
 2225                         fuse_log(FUSE_LOG_DEBUG, 
"mkdir %s 0%o umask=0%03o\n",
 
 2228                 return fs->op.mkdir(path, mode);
 
 2234 int fuse_fs_setxattr(
struct fuse_fs *fs, 
const char *path, 
const char *name,
 
 2235                      const char *value, 
size_t size, 
int flags)
 
 2238         if (fs->op.setxattr) {
 
 2240                         fuse_log(FUSE_LOG_DEBUG, 
"setxattr %s %s %lu 0x%x\n",
 
 2241                                 path, name, (
unsigned long) size, flags);
 
 2243                 return fs->op.setxattr(path, name, value, size, flags);
 
 2249 int fuse_fs_getxattr(
struct fuse_fs *fs, 
const char *path, 
const char *name,
 
 2250                      char *value, 
size_t size)
 
 2253         if (fs->op.getxattr) {
 
 2255                         fuse_log(FUSE_LOG_DEBUG, 
"getxattr %s %s %lu\n",
 
 2256                                 path, name, (
unsigned long) size);
 
 2258                 return fs->op.getxattr(path, name, value, size);
 
 2264 int fuse_fs_listxattr(
struct fuse_fs *fs, 
const char *path, 
char *list,
 
 2268         if (fs->op.listxattr) {
 
 2270                         fuse_log(FUSE_LOG_DEBUG, 
"listxattr %s %lu\n",
 
 2271                                 path, (
unsigned long) size);
 
 2273                 return fs->op.listxattr(path, list, size);
 
 2279 int fuse_fs_bmap(
struct fuse_fs *fs, 
const char *path, 
size_t blocksize,
 
 2285                         fuse_log(FUSE_LOG_DEBUG, 
"bmap %s blocksize: %lu index: %llu\n",
 
 2286                                 path, (
unsigned long) blocksize,
 
 2287                                 (
unsigned long long) *
idx);
 
 2289                 return fs->op.bmap(path, blocksize, 
idx);
 
 2295 int fuse_fs_removexattr(
struct fuse_fs *fs, 
const char *path, 
const char *name)
 
 2298         if (fs->op.removexattr) {
 
 2300                         fuse_log(FUSE_LOG_DEBUG, 
"removexattr %s %s\n", path, name);
 
 2302                 return fs->op.removexattr(path, name);
 
 2308 int fuse_fs_ioctl(
struct fuse_fs *fs, 
const char *path, 
unsigned int cmd,
 
 2315                         fuse_log(FUSE_LOG_DEBUG, 
"ioctl[%llu] 0x%x flags: 0x%x\n",
 
 2316                                 (
unsigned long long) fi->
fh, cmd, flags);
 
 2318                 return fs->op.ioctl(path, cmd, arg, fi, flags, data);
 
 2323 int fuse_fs_poll(
struct fuse_fs *fs, 
const char *path,
 
 2332                         fuse_log(FUSE_LOG_DEBUG, 
"poll[%llu] ph: %p, events 0x%x\n",
 
 2333                                 (
unsigned long long) fi->
fh, ph,
 
 2336                 res = fs->op.poll(path, fi, ph, reventsp);
 
 2338                 if (fs->debug && !res)
 
 2339                         fuse_log(FUSE_LOG_DEBUG, 
"   poll[%llu] revents: 0x%x\n",
 
 2340                                 (
unsigned long long) fi->
fh, *reventsp);
 
 2347 int fuse_fs_fallocate(
struct fuse_fs *fs, 
const char *path, 
int mode,
 
 2351         if (fs->op.fallocate) {
 
 2353                         fuse_log(FUSE_LOG_DEBUG, 
"fallocate %s mode %x, offset: %llu, length: %llu\n",
 
 2356                                 (
unsigned long long) offset,
 
 2357                                 (
unsigned long long) length);
 
 2359                 return fs->op.fallocate(path, mode, offset, length, fi);
 
 2364 ssize_t fuse_fs_copy_file_range(
struct fuse_fs *fs, 
const char *path_in,
 
 2366                                 const char *path_out,
 
 2368                                 size_t len, 
int flags)
 
 2371         if (fs->op.copy_file_range) {
 
 2373                         fuse_log(FUSE_LOG_DEBUG, 
"copy_file_range from %s:%llu to " 
 2374                                         "%s:%llu, length: %llu\n",
 
 2376                                 (
unsigned long long) off_in,
 
 2378                                 (
unsigned long long) off_out,
 
 2379                                 (
unsigned long long) len);
 
 2381                 return fs->op.copy_file_range(path_in, fi_in, off_in, path_out,
 
 2382                                               fi_out, off_out, len, flags);
 
 2387 off_t fuse_fs_lseek(
struct fuse_fs *fs, 
const char *path, off_t 
off, 
int whence,
 
 2394                         fuse_log(FUSE_LOG_DEBUG, 
"lseek[%s] %llu %d\n",
 
 2395                                 file_info_string(fi, 
buf, 
sizeof(
buf)),
 
 2396                                 (
unsigned long long) 
off, whence);
 
 2398                 return fs->op.lseek(path, 
off, whence, fi);
 
 2404 static int is_open(
struct fuse *f, 
fuse_ino_t dir, 
const char *name)
 
 2408         pthread_mutex_lock(&f->lock);
 
 2409         node = lookup_node(f, dir, name);
 
 2410         if (node && node->open_count > 0)
 
 2412         pthread_mutex_unlock(&f->lock);
 
 2416 static char *hidden_name(
struct fuse *f, 
fuse_ino_t dir, 
const char *oldname,
 
 2417                          char *newname, 
size_t bufsize)
 
 2421         struct node *newnode;
 
 2427                 pthread_mutex_lock(&f->lock);
 
 2428                 node = lookup_node(f, dir, oldname);
 
 2430                         pthread_mutex_unlock(&f->lock);
 
 2435                         snprintf(newname, bufsize, 
".fuse_hidden%08x%08x",
 
 2436                                  (
unsigned int) node->nodeid, f->hidectr);
 
 2437                         newnode = lookup_node(f, dir, newname);
 
 2440                 res = try_get_path(f, dir, newname, &newpath, NULL, 
false);
 
 2441                 pthread_mutex_unlock(&f->lock);
 
 2445                 memset(&buf, 0, 
sizeof(buf));
 
 2446                 res = fuse_fs_getattr(f->fs, newpath, &buf, NULL);
 
 2451         } 
while(res == 0 && --failctr);
 
 2456 static int hide_node(
struct fuse *f, 
const char *oldpath,
 
 2463         newpath = hidden_name(f, dir, oldname, newname, 
sizeof(newname));
 
 2465                 err = fuse_fs_rename(f->fs, oldpath, newpath, 0);
 
 2467                         err = rename_node(f, dir, oldname, dir, newname, 1);
 
 2473 static int mtime_eq(
const struct stat *stbuf, 
const struct timespec *ts)
 
 2475         return stbuf->st_mtime == ts->tv_sec &&
 
 2476                 ST_MTIM_NSEC(stbuf) == ts->tv_nsec;
 
 2479 #ifndef CLOCK_MONOTONIC 
 2480 #define CLOCK_MONOTONIC CLOCK_REALTIME 
 2483 static void curr_time(
struct timespec *now)
 
 2485         static clockid_t clockid = CLOCK_MONOTONIC;
 
 2486         int res = clock_gettime(clockid, now);
 
 2487         if (res == -1 && errno == EINVAL) {
 
 2488                 clockid = CLOCK_REALTIME;
 
 2489                 res = clock_gettime(clockid, now);
 
 2492                 perror(
"fuse: clock_gettime");
 
 2497 static void update_stat(
struct node *node, 
const struct stat *stbuf)
 
 2499         if (node->cache_valid && (!mtime_eq(stbuf, &node->mtime) ||
 
 2500                                   stbuf->st_size != node->size))
 
 2501                 node->cache_valid = 0;
 
 2502         node->mtime.tv_sec = stbuf->st_mtime;
 
 2503         node->mtime.tv_nsec = ST_MTIM_NSEC(stbuf);
 
 2504         node->size = stbuf->st_size;
 
 2505         curr_time(&node->stat_updated);
 
 2508 static int do_lookup(
struct fuse *f, 
fuse_ino_t nodeid, 
const char *name,
 
 2513         node = find_node(f, nodeid, name);
 
 2517         e->
ino = node->nodeid;
 
 2521         if (f->conf.auto_cache) {
 
 2522                 pthread_mutex_lock(&f->lock);
 
 2523                 update_stat(node, &e->
attr);
 
 2524                 pthread_mutex_unlock(&f->lock);
 
 2526         set_stat(f, e->
ino, &e->
attr);
 
 2530 static int lookup_path(
struct fuse *f, 
fuse_ino_t nodeid,
 
 2531                        const char *name, 
const char *path,
 
 2537         res = fuse_fs_getattr(f->fs, path, &e->
attr, fi);
 
 2539                 res = do_lookup(f, nodeid, name, e);
 
 2540                 if (res == 0 && f->conf.debug) {
 
 2541                         fuse_log(FUSE_LOG_DEBUG, 
"   NODEID: %llu\n",
 
 2542                                 (
unsigned long long) e->
ino);
 
 2548 static struct fuse_context_i *fuse_get_context_internal(
void)
 
 2550         return (
struct fuse_context_i *) pthread_getspecific(fuse_context_key);
 
 2553 static struct fuse_context_i *fuse_create_context(
struct fuse *f)
 
 2555         struct fuse_context_i *c = fuse_get_context_internal();
 
 2557                 c = (
struct fuse_context_i *)
 
 2558                         calloc(1, 
sizeof(
struct fuse_context_i));
 
 2564                         fuse_log(FUSE_LOG_ERR, 
"fuse: failed to allocate thread specific data\n");
 
 2567                 pthread_setspecific(fuse_context_key, c);
 
 2569                 memset(c, 0, 
sizeof(*c));
 
 2576 static void fuse_freecontext(
void *data)
 
 2581 static int fuse_create_context_key(
void)
 
 2584         pthread_mutex_lock(&fuse_context_lock);
 
 2585         if (!fuse_context_ref) {
 
 2586                 err = pthread_key_create(&fuse_context_key, fuse_freecontext);
 
 2588                         fuse_log(FUSE_LOG_ERR, 
"fuse: failed to create thread specific key: %s\n",
 
 2590                         pthread_mutex_unlock(&fuse_context_lock);
 
 2595         pthread_mutex_unlock(&fuse_context_lock);
 
 2599 static void fuse_delete_context_key(
void)
 
 2601         pthread_mutex_lock(&fuse_context_lock);
 
 2603         if (!fuse_context_ref) {
 
 2604                 free(pthread_getspecific(fuse_context_key));
 
 2605                 pthread_key_delete(fuse_context_key);
 
 2607         pthread_mutex_unlock(&fuse_context_lock);
 
 2610 static struct fuse *req_fuse_prepare(
fuse_req_t req)
 
 2612         struct fuse_context_i *c = fuse_create_context(req_fuse(req));
 
 2615         c->ctx.uid = ctx->
uid;
 
 2616         c->ctx.gid = ctx->
gid;
 
 2617         c->ctx.pid = ctx->
pid;
 
 2618         c->ctx.umask = ctx->
umask;
 
 2622 static inline void reply_err(
fuse_req_t req, 
int err)
 
 2632                 struct fuse *f = req_fuse(req);
 
 2636                                 forget_node(f, e->
ino, 1);
 
 2639                 reply_err(req, err);
 
 2642 void fuse_fs_init(
struct fuse_fs *fs, 
struct fuse_conn_info *conn,
 
 2646         if (!fs->op.write_buf)
 
 2653                 fs->user_data = fs->op.init(conn, cfg);
 
 2656 static void fuse_lib_init(
void *data, 
struct fuse_conn_info *conn)
 
 2658         struct fuse *f = (
struct fuse *) data;
 
 2660         fuse_create_context(f);
 
 2663         fuse_fs_init(f->fs, conn, &f->conf);
 
 2666 void fuse_fs_destroy(
struct fuse_fs *fs)
 
 2670                 fs->op.destroy(fs->user_data);
 
 2672                 fuse_put_module(fs->m);
 
 2676 static void fuse_lib_destroy(
void *data)
 
 2678         struct fuse *f = (
struct fuse *) data;
 
 2680         fuse_create_context(f);
 
 2681         fuse_fs_destroy(f->fs);
 
 2688         struct fuse *f = req_fuse_prepare(req);
 
 2692         struct node *dot = NULL;
 
 2694         if (name[0] == 
'.') {
 
 2695                 int len = strlen(name);
 
 2697                 if (len == 1 || (name[1] == 
'.' && len == 2)) {
 
 2698                         pthread_mutex_lock(&f->lock);
 
 2701                                         fuse_log(FUSE_LOG_DEBUG, 
"LOOKUP-DOT\n");
 
 2702                                 dot = get_node_nocheck(f, parent);
 
 2704                                         pthread_mutex_unlock(&f->lock);
 
 2705                                         reply_entry(req, &e, -ESTALE);
 
 2711                                         fuse_log(FUSE_LOG_DEBUG, 
"LOOKUP-DOTDOT\n");
 
 2712                                 parent = get_node(f, parent)->parent->nodeid;
 
 2714                         pthread_mutex_unlock(&f->lock);
 
 2719         err = get_path_name(f, parent, name, &path);
 
 2721                 struct fuse_intr_data d;
 
 2723                         fuse_log(FUSE_LOG_DEBUG, 
"LOOKUP %s\n", path);
 
 2724                 fuse_prepare_interrupt(f, req, &d);
 
 2725                 err = lookup_path(f, parent, name, path, &e, NULL);
 
 2726                 if (err == -ENOENT && f->conf.negative_timeout != 0.0) {
 
 2731                 fuse_finish_interrupt(f, req, &d);
 
 2732                 free_path(f, parent, path);
 
 2735                 pthread_mutex_lock(&f->lock);
 
 2737                 pthread_mutex_unlock(&f->lock);
 
 2739         reply_entry(req, &e, err);
 
 2742 static void do_forget(
struct fuse *f, 
fuse_ino_t ino, uint64_t nlookup)
 
 2745                 fuse_log(FUSE_LOG_DEBUG, 
"FORGET %llu/%llu\n", (
unsigned long long)ino,
 
 2746                         (
unsigned long long) nlookup);
 
 2747         forget_node(f, ino, nlookup);
 
 2752         do_forget(req_fuse(req), ino, nlookup);
 
 2756 static void fuse_lib_forget_multi(
fuse_req_t req, 
size_t count,
 
 2757                                   struct fuse_forget_data *forgets)
 
 2759         struct fuse *f = req_fuse(req);
 
 2762         for (i = 0; i < count; i++)
 
 2763                 do_forget(f, forgets[i].ino, forgets[i].nlookup);
 
 2772         struct fuse *f = req_fuse_prepare(req);
 
 2777         memset(&buf, 0, 
sizeof(buf));
 
 2780                 err = get_path_nullok(f, ino, &path);
 
 2782                 err = get_path(f, ino, &path);
 
 2784                 struct fuse_intr_data d;
 
 2785                 fuse_prepare_interrupt(f, req, &d);
 
 2786                 err = fuse_fs_getattr(f->fs, path, &buf, fi);
 
 2787                 fuse_finish_interrupt(f, req, &d);
 
 2788                 free_path(f, ino, path);
 
 2793                 pthread_mutex_lock(&f->lock);
 
 2794                 node = get_node(f, ino);
 
 2795                 if (node->is_hidden && buf.st_nlink > 0)
 
 2797                 if (f->conf.auto_cache)
 
 2798                         update_stat(node, &buf);
 
 2799                 pthread_mutex_unlock(&f->lock);
 
 2800                 set_stat(f, ino, &buf);
 
 2803                 reply_err(req, err);
 
 2806 int fuse_fs_chmod(
struct fuse_fs *fs, 
const char *path, mode_t mode,
 
 2813                         fuse_log(FUSE_LOG_DEBUG, 
"chmod[%s] %s %llo\n",
 
 2814                                 file_info_string(fi, buf, 
sizeof(buf)),
 
 2815                                 path, (
unsigned long long) mode);
 
 2817                 return fs->op.chmod(path, mode, fi);
 
 2826         struct fuse *f = req_fuse_prepare(req);
 
 2831         memset(&buf, 0, 
sizeof(buf));
 
 2833                 err = get_path_nullok(f, ino, &path);
 
 2835                 err = get_path(f, ino, &path);
 
 2837                 struct fuse_intr_data d;
 
 2838                 fuse_prepare_interrupt(f, req, &d);
 
 2840                 if (!err && (valid & FUSE_SET_ATTR_MODE))
 
 2841                         err = fuse_fs_chmod(f->fs, path, attr->st_mode, fi);
 
 2842                 if (!err && (valid & (FUSE_SET_ATTR_UID | FUSE_SET_ATTR_GID))) {
 
 2843                         uid_t uid = (valid & FUSE_SET_ATTR_UID) ?
 
 2844                                 attr->st_uid : (uid_t) -1;
 
 2845                         gid_t gid = (valid & FUSE_SET_ATTR_GID) ?
 
 2846                                 attr->st_gid : (gid_t) -1;
 
 2847                         err = fuse_fs_chown(f->fs, path, uid, gid, fi);
 
 2849                 if (!err && (valid & FUSE_SET_ATTR_SIZE)) {
 
 2850                         err = fuse_fs_truncate(f->fs, path,
 
 2853 #ifdef HAVE_UTIMENSAT 
 2855                     (valid & (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME))) {
 
 2856                         struct timespec tv[2];
 
 2860                         tv[0].tv_nsec = UTIME_OMIT;
 
 2861                         tv[1].tv_nsec = UTIME_OMIT;
 
 2863                         if (valid & FUSE_SET_ATTR_ATIME_NOW)
 
 2864                                 tv[0].tv_nsec = UTIME_NOW;
 
 2865                         else if (valid & FUSE_SET_ATTR_ATIME)
 
 2866                                 tv[0] = attr->st_atim;
 
 2868                         if (valid & FUSE_SET_ATTR_MTIME_NOW)
 
 2869                                 tv[1].tv_nsec = UTIME_NOW;
 
 2870                         else if (valid & FUSE_SET_ATTR_MTIME)
 
 2871                                 tv[1] = attr->st_mtim;
 
 2873                         err = fuse_fs_utimens(f->fs, path, tv, fi);
 
 2877                     (valid & (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) ==
 
 2878                     (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) {
 
 2879                         struct timespec tv[2];
 
 2880                         tv[0].tv_sec = attr->st_atime;
 
 2881                         tv[0].tv_nsec = ST_ATIM_NSEC(attr);
 
 2882                         tv[1].tv_sec = attr->st_mtime;
 
 2883                         tv[1].tv_nsec = ST_MTIM_NSEC(attr);
 
 2884                         err = fuse_fs_utimens(f->fs, path, tv, fi);
 
 2887                         err = fuse_fs_getattr(f->fs, path, &buf, fi);
 
 2889                 fuse_finish_interrupt(f, req, &d);
 
 2890                 free_path(f, ino, path);
 
 2893                 if (f->conf.auto_cache) {
 
 2894                         pthread_mutex_lock(&f->lock);
 
 2895                         update_stat(get_node(f, ino), &buf);
 
 2896                         pthread_mutex_unlock(&f->lock);
 
 2898                 set_stat(f, ino, &buf);
 
 2901                 reply_err(req, err);
 
 2906         struct fuse *f = req_fuse_prepare(req);
 
 2910         err = get_path(f, ino, &path);
 
 2912                 struct fuse_intr_data d;
 
 2914                 fuse_prepare_interrupt(f, req, &d);
 
 2915                 err = fuse_fs_access(f->fs, path, mask);
 
 2916                 fuse_finish_interrupt(f, req, &d);
 
 2917                 free_path(f, ino, path);
 
 2919         reply_err(req, err);
 
 2924         struct fuse *f = req_fuse_prepare(req);
 
 2925         char linkname[PATH_MAX + 1];
 
 2929         err = get_path(f, ino, &path);
 
 2931                 struct fuse_intr_data d;
 
 2932                 fuse_prepare_interrupt(f, req, &d);
 
 2933                 err = fuse_fs_readlink(f->fs, path, linkname, 
sizeof(linkname));
 
 2934                 fuse_finish_interrupt(f, req, &d);
 
 2935                 free_path(f, ino, path);
 
 2938                 linkname[PATH_MAX] = 
'\0';
 
 2941                 reply_err(req, err);
 
 2945                            mode_t mode, dev_t rdev)
 
 2947         struct fuse *f = req_fuse_prepare(req);
 
 2952         err = get_path_name(f, parent, name, &path);
 
 2954                 struct fuse_intr_data d;
 
 2956                 fuse_prepare_interrupt(f, req, &d);
 
 2958                 if (S_ISREG(mode)) {
 
 2961                         memset(&fi, 0, 
sizeof(fi));
 
 2962                         fi.
flags = O_CREAT | O_EXCL | O_WRONLY;
 
 2963                         err = fuse_fs_create(f->fs, path, mode, &fi);
 
 2965                                 err = lookup_path(f, parent, name, path, &e,
 
 2967                                 fuse_fs_release(f->fs, path, &fi);
 
 2970                 if (err == -ENOSYS) {
 
 2971                         err = fuse_fs_mknod(f->fs, path, mode, rdev);
 
 2973                                 err = lookup_path(f, parent, name, path, &e,
 
 2976                 fuse_finish_interrupt(f, req, &d);
 
 2977                 free_path(f, parent, path);
 
 2979         reply_entry(req, &e, err);
 
 2985         struct fuse *f = req_fuse_prepare(req);
 
 2990         err = get_path_name(f, parent, name, &path);
 
 2992                 struct fuse_intr_data d;
 
 2994                 fuse_prepare_interrupt(f, req, &d);
 
 2995                 err = fuse_fs_mkdir(f->fs, path, mode);
 
 2997                         err = lookup_path(f, parent, name, path, &e, NULL);
 
 2998                 fuse_finish_interrupt(f, req, &d);
 
 2999                 free_path(f, parent, path);
 
 3001         reply_entry(req, &e, err);
 
 3007         struct fuse *f = req_fuse_prepare(req);
 
 3012         err = get_path_wrlock(f, parent, name, &path, &wnode);
 
 3014                 struct fuse_intr_data d;
 
 3016                 fuse_prepare_interrupt(f, req, &d);
 
 3017                 if (!f->conf.hard_remove && is_open(f, parent, name)) {
 
 3018                         err = hide_node(f, path, parent, name);
 
 3020                         err = fuse_fs_unlink(f->fs, path);
 
 3022                                 remove_node(f, parent, name);
 
 3024                 fuse_finish_interrupt(f, req, &d);
 
 3025                 free_path_wrlock(f, parent, wnode, path);
 
 3027         reply_err(req, err);
 
 3032         struct fuse *f = req_fuse_prepare(req);
 
 3037         err = get_path_wrlock(f, parent, name, &path, &wnode);
 
 3039                 struct fuse_intr_data d;
 
 3041                 fuse_prepare_interrupt(f, req, &d);
 
 3042                 err = fuse_fs_rmdir(f->fs, path);
 
 3043                 fuse_finish_interrupt(f, req, &d);
 
 3045                         remove_node(f, parent, name);
 
 3046                 free_path_wrlock(f, parent, wnode, path);
 
 3048         reply_err(req, err);
 
 3051 static void fuse_lib_symlink(
fuse_req_t req, 
const char *linkname,
 
 3054         struct fuse *f = req_fuse_prepare(req);
 
 3059         err = get_path_name(f, parent, name, &path);
 
 3061                 struct fuse_intr_data d;
 
 3063                 fuse_prepare_interrupt(f, req, &d);
 
 3064                 err = fuse_fs_symlink(f->fs, linkname, path);
 
 3066                         err = lookup_path(f, parent, name, path, &e, NULL);
 
 3067                 fuse_finish_interrupt(f, req, &d);
 
 3068                 free_path(f, parent, path);
 
 3070         reply_entry(req, &e, err);
 
 3075                             const char *newname, 
unsigned int flags)
 
 3077         struct fuse *f = req_fuse_prepare(req);
 
 3080         struct node *wnode1;
 
 3081         struct node *wnode2;
 
 3084         err = get_path2(f, olddir, oldname, newdir, newname,
 
 3085                         &oldpath, &newpath, &wnode1, &wnode2);
 
 3087                 struct fuse_intr_data d;
 
 3089                 fuse_prepare_interrupt(f, req, &d);
 
 3090                 if (!f->conf.hard_remove && !(flags & RENAME_EXCHANGE) &&
 
 3091                     is_open(f, newdir, newname))
 
 3092                         err = hide_node(f, newpath, newdir, newname);
 
 3094                         err = fuse_fs_rename(f->fs, oldpath, newpath, flags);
 
 3096                                 if (flags & RENAME_EXCHANGE) {
 
 3097                                         err = exchange_node(f, olddir, oldname,
 
 3100                                         err = rename_node(f, olddir, oldname,
 
 3101                                                           newdir, newname, 0);
 
 3105                 fuse_finish_interrupt(f, req, &d);
 
 3106                 free_path2(f, olddir, newdir, wnode1, wnode2, oldpath, newpath);
 
 3108         reply_err(req, err);
 
 3112                           const char *newname)
 
 3114         struct fuse *f = req_fuse_prepare(req);
 
 3120         err = get_path2(f, 
ino, NULL, newparent, newname,
 
 3121                         &oldpath, &newpath, NULL, NULL);
 
 3123                 struct fuse_intr_data d;
 
 3125                 fuse_prepare_interrupt(f, req, &d);
 
 3126                 err = fuse_fs_link(f->fs, oldpath, newpath);
 
 3128                         err = lookup_path(f, newparent, newname, newpath,
 
 3130                 fuse_finish_interrupt(f, req, &d);
 
 3131                 free_path2(f, ino, newparent, NULL, NULL, oldpath, newpath);
 
 3133         reply_entry(req, &e, err);
 
 3136 static void fuse_do_release(
struct fuse *f, 
fuse_ino_t ino, 
const char *path,
 
 3140         int unlink_hidden = 0;
 
 3142         fuse_fs_release(f->fs, path, fi);
 
 3144         pthread_mutex_lock(&f->lock);
 
 3145         node = get_node(f, ino);
 
 3146         assert(node->open_count > 0);
 
 3148         if (node->is_hidden && !node->open_count) {
 
 3150                 node->is_hidden = 0;
 
 3152         pthread_mutex_unlock(&f->lock);
 
 3156                         fuse_fs_unlink(f->fs, path);
 
 3157                 } 
else if (f->conf.nullpath_ok) {
 
 3160                         if (get_path(f, ino, &unlinkpath) == 0)
 
 3161                                 fuse_fs_unlink(f->fs, unlinkpath);
 
 3163                         free_path(f, ino, unlinkpath);
 
 3169                             const char *name, mode_t mode,
 
 3172         struct fuse *f = req_fuse_prepare(req);
 
 3173         struct fuse_intr_data d;
 
 3178         err = get_path_name(f, parent, name, &path);
 
 3180                 fuse_prepare_interrupt(f, req, &d);
 
 3181                 err = fuse_fs_create(f->fs, path, mode, fi);
 
 3183                         err = lookup_path(f, parent, name, path, &e, fi);
 
 3185                                 fuse_fs_release(f->fs, path, fi);
 
 3186                         else if (!S_ISREG(e.
attr.st_mode)) {
 
 3188                                 fuse_fs_release(f->fs, path, fi);
 
 3189                                 forget_node(f, e.
ino, 1);
 
 3191                                 if (f->conf.direct_io)
 
 3193                                 if (f->conf.kernel_cache)
 
 3198                 fuse_finish_interrupt(f, req, &d);
 
 3201                 pthread_mutex_lock(&f->lock);
 
 3202                 get_node(f, e.
ino)->open_count++;
 
 3203                 pthread_mutex_unlock(&f->lock);
 
 3207                         fuse_do_release(f, e.
ino, path, fi);
 
 3208                         forget_node(f, e.
ino, 1);
 
 3211                 reply_err(req, err);
 
 3214         free_path(f, parent, path);
 
 3217 static double diff_timespec(
const struct timespec *t1,
 
 3218                             const struct timespec *t2)
 
 3220         return (t1->tv_sec - t2->tv_sec) +
 
 3221                 ((double) t1->tv_nsec - (
double) t2->tv_nsec) / 1000000000.0;
 
 3224 static void open_auto_cache(
struct fuse *f, 
fuse_ino_t ino, 
const char *path,
 
 3229         pthread_mutex_lock(&f->lock);
 
 3230         node = get_node(f, ino);
 
 3231         if (node->cache_valid) {
 
 3232                 struct timespec now;
 
 3235                 if (diff_timespec(&now, &node->stat_updated) >
 
 3236                     f->conf.ac_attr_timeout) {
 
 3239                         pthread_mutex_unlock(&f->lock);
 
 3240                         err = fuse_fs_getattr(f->fs, path, &stbuf, fi);
 
 3241                         pthread_mutex_lock(&f->lock);
 
 3243                                 update_stat(node, &stbuf);
 
 3245                                 node->cache_valid = 0;
 
 3248         if (node->cache_valid)
 
 3251         node->cache_valid = 1;
 
 3252         pthread_mutex_unlock(&f->lock);
 
 3258         struct fuse *f = req_fuse_prepare(req);
 
 3259         struct fuse_intr_data d;
 
 3263         err = get_path(f, ino, &path);
 
 3265                 fuse_prepare_interrupt(f, req, &d);
 
 3266                 err = fuse_fs_open(f->fs, path, fi);
 
 3268                         if (f->conf.direct_io)
 
 3270                         if (f->conf.kernel_cache)
 
 3273                         if (f->conf.auto_cache)
 
 3274                                 open_auto_cache(f, ino, path, fi);
 
 3276                         if (f->conf.no_rofd_flush &&
 
 3277                             (fi->
flags & O_ACCMODE) == O_RDONLY)
 
 3280                 fuse_finish_interrupt(f, req, &d);
 
 3283                 pthread_mutex_lock(&f->lock);
 
 3284                 get_node(f, ino)->open_count++;
 
 3285                 pthread_mutex_unlock(&f->lock);
 
 3289                         fuse_do_release(f, ino, path, fi);
 
 3292                 reply_err(req, err);
 
 3294         free_path(f, ino, path);
 
 3300         struct fuse *f = req_fuse_prepare(req);
 
 3305         res = get_path_nullok(f, ino, &path);
 
 3307                 struct fuse_intr_data d;
 
 3309                 fuse_prepare_interrupt(f, req, &d);
 
 3310                 res = fuse_fs_read_buf(f->fs, path, &buf, size, off, fi);
 
 3311                 fuse_finish_interrupt(f, req, &d);
 
 3312                 free_path(f, ino, path);
 
 3318                 reply_err(req, res);
 
 3327         struct fuse *f = req_fuse_prepare(req);
 
 3331         res = get_path_nullok(f, ino, &path);
 
 3333                 struct fuse_intr_data d;
 
 3335                 fuse_prepare_interrupt(f, req, &d);
 
 3336                 res = fuse_fs_write_buf(f->fs, path, buf, off, fi);
 
 3337                 fuse_finish_interrupt(f, req, &d);
 
 3338                 free_path(f, ino, path);
 
 3344                 reply_err(req, res);
 
 3350         struct fuse *f = req_fuse_prepare(req);
 
 3354         err = get_path_nullok(f, ino, &path);
 
 3356                 struct fuse_intr_data d;
 
 3358                 fuse_prepare_interrupt(f, req, &d);
 
 3359                 err = fuse_fs_fsync(f->fs, path, datasync, fi);
 
 3360                 fuse_finish_interrupt(f, req, &d);
 
 3361                 free_path(f, ino, path);
 
 3363         reply_err(req, err);
 
 3366 static struct fuse_dh *get_dirhandle(
const struct fuse_file_info *llfi,
 
 3369         struct fuse_dh *dh = (
struct fuse_dh *) (uintptr_t) llfi->
fh;
 
 3378         struct fuse *f = req_fuse_prepare(req);
 
 3379         struct fuse_intr_data d;
 
 3385         dh = (
struct fuse_dh *) malloc(
sizeof(
struct fuse_dh));
 
 3387                 reply_err(req, -ENOMEM);
 
 3390         memset(dh, 0, 
sizeof(
struct fuse_dh));
 
 3392         dh->contents = NULL;
 
 3397         pthread_mutex_init(&dh->lock, NULL);
 
 3399         llfi->
fh = (uintptr_t) dh;
 
 3401         memset(&fi, 0, 
sizeof(fi));
 
 3404         err = get_path(f, ino, &path);
 
 3406                 fuse_prepare_interrupt(f, req, &d);
 
 3407                 err = fuse_fs_opendir(f->fs, path, &fi);
 
 3408                 fuse_finish_interrupt(f, req, &d);
 
 3415                         fuse_fs_releasedir(f->fs, path, &fi);
 
 3416                         pthread_mutex_destroy(&dh->lock);
 
 3420                 reply_err(req, err);
 
 3421                 pthread_mutex_destroy(&dh->lock);
 
 3424         free_path(f, ino, path);
 
 3427 static int extend_contents(
struct fuse_dh *dh, 
unsigned minsize)
 
 3429         if (minsize > dh->size) {
 
 3431                 unsigned newsize = dh->size;
 
 3434                 while (newsize < minsize) {
 
 3435                         if (newsize >= 0x80000000)
 
 3436                                 newsize = 0xffffffff;
 
 3441                 newptr = (
char *) realloc(dh->contents, newsize);
 
 3443                         dh->error = -ENOMEM;
 
 3446                 dh->contents = newptr;
 
 3452 static int fuse_add_direntry_to_dh(
struct fuse_dh *dh, 
const char *name,
 
 3455         struct fuse_direntry *de;
 
 3457         de = malloc(
sizeof(
struct fuse_direntry));
 
 3459                 dh->error = -ENOMEM;
 
 3462         de->name = strdup(name);
 
 3464                 dh->error = -ENOMEM;
 
 3472         dh->last = &de->next;
 
 3483         pthread_mutex_lock(&f->lock);
 
 3484         node = lookup_node(f, parent, name);
 
 3487         pthread_mutex_unlock(&f->lock);
 
 3492 static int fill_dir(
void *dh_, 
const char *name, 
const struct stat *statp,
 
 3495         struct fuse_dh *dh = (
struct fuse_dh *) dh_;
 
 3506                 memset(&stbuf, 0, 
sizeof(stbuf));
 
 3507                 stbuf.st_ino = FUSE_UNKNOWN_INO;
 
 3510         if (!dh->fuse->conf.use_ino) {
 
 3511                 stbuf.st_ino = FUSE_UNKNOWN_INO;
 
 3512                 if (dh->fuse->conf.readdir_ino) {
 
 3513                         stbuf.st_ino = (ino_t)
 
 3514                                 lookup_nodeid(dh->fuse, dh->nodeid, name);
 
 3531                 if (extend_contents(dh, dh->needlen) == -1)
 
 3536                                           dh->needlen - dh->len, name,
 
 3538                 if (newlen > dh->needlen)
 
 3545                 if (fuse_add_direntry_to_dh(dh, name, &stbuf) == -1)
 
 3551 static int is_dot_or_dotdot(
const char *name)
 
 3553         return name[0] == 
'.' && (name[1] == 
'\0' ||
 
 3554                                   (name[1] == 
'.' && name[2] == 
'\0'));
 
 3557 static int fill_dir_plus(
void *dh_, 
const char *name, 
const struct stat *statp,
 
 3560         struct fuse_dh *dh = (
struct fuse_dh *) dh_;
 
 3565         struct fuse *f = dh->fuse;
 
 3576                 if (!is_dot_or_dotdot(name)) {
 
 3577                         res = do_lookup(f, dh->nodeid, name, &e);
 
 3584                 e.
attr.st_ino = FUSE_UNKNOWN_INO;
 
 3586                         e.
attr.st_mode = statp->st_mode;
 
 3587                         if (f->conf.use_ino)
 
 3588                                 e.
attr.st_ino = statp->st_ino;
 
 3590                 if (!f->conf.use_ino && f->conf.readdir_ino) {
 
 3591                         e.
attr.st_ino = (ino_t)
 
 3592                                 lookup_nodeid(f, dh->nodeid, name);
 
 3608                 if (extend_contents(dh, dh->needlen) == -1)
 
 3613                                                dh->needlen - dh->len, name,
 
 3615                 if (newlen > dh->needlen)
 
 3621                 if (fuse_add_direntry_to_dh(dh, name, &e.
attr) == -1)
 
 3628 static void free_direntries(
struct fuse_direntry *de)
 
 3631                 struct fuse_direntry *next = de->next;
 
 3639                         size_t size, off_t off, 
struct fuse_dh *dh,
 
 3646         if (f->fs->op.readdir)
 
 3647                 err = get_path_nullok(f, ino, &path);
 
 3649                 err = get_path(f, ino, &path);
 
 3651                 struct fuse_intr_data d;
 
 3655                         filler = fill_dir_plus;
 
 3657                 free_direntries(dh->first);
 
 3659                 dh->last = &dh->first;
 
 3665                 fuse_prepare_interrupt(f, req, &d);
 
 3666                 err = fuse_fs_readdir(f->fs, path, dh, filler, off, fi, flags);
 
 3667                 fuse_finish_interrupt(f, req, &d);
 
 3673                 free_path(f, ino, path);
 
 3678 static int readdir_fill_from_list(
fuse_req_t req, 
struct fuse_dh *dh,
 
 3682         struct fuse_direntry *de = dh->first;
 
 3686         if (extend_contents(dh, dh->needlen) == -1)
 
 3689         for (pos = 0; pos < off; pos++) {
 
 3696                 char *p = dh->contents + dh->len;
 
 3697                 unsigned rem = dh->needlen - dh->len;
 
 3711                                                     de->name, &de->stat, pos);
 
 3713                 newlen = dh->len + thislen;
 
 3714                 if (newlen > dh->needlen)
 
 3726         struct fuse *f = req_fuse_prepare(req);
 
 3728         struct fuse_dh *dh = get_dirhandle(llfi, &fi);
 
 3731         pthread_mutex_lock(&dh->lock);
 
 3738                 err = readdir_fill(f, req, ino, size, off, dh, &fi, flags);
 
 3740                         reply_err(req, err);
 
 3746                 err = readdir_fill_from_list(req, dh, off, flags);
 
 3748                         reply_err(req, err);
 
 3754         pthread_mutex_unlock(&dh->lock);
 
 3760         fuse_readdir_common(req, ino, size, off, llfi, 0);
 
 3772         struct fuse *f = req_fuse_prepare(req);
 
 3773         struct fuse_intr_data d;
 
 3775         struct fuse_dh *dh = get_dirhandle(llfi, &fi);
 
 3778         get_path_nullok(f, ino, &path);
 
 3780         fuse_prepare_interrupt(f, req, &d);
 
 3781         fuse_fs_releasedir(f->fs, path, &fi);
 
 3782         fuse_finish_interrupt(f, req, &d);
 
 3783         free_path(f, ino, path);
 
 3785         pthread_mutex_lock(&dh->lock);
 
 3786         pthread_mutex_unlock(&dh->lock);
 
 3787         pthread_mutex_destroy(&dh->lock);
 
 3788         free_direntries(dh->first);
 
 3797         struct fuse *f = req_fuse_prepare(req);
 
 3802         get_dirhandle(llfi, &fi);
 
 3804         err = get_path_nullok(f, ino, &path);
 
 3806                 struct fuse_intr_data d;
 
 3807                 fuse_prepare_interrupt(f, req, &d);
 
 3808                 err = fuse_fs_fsyncdir(f->fs, path, datasync, &fi);
 
 3809                 fuse_finish_interrupt(f, req, &d);
 
 3810                 free_path(f, ino, path);
 
 3812         reply_err(req, err);
 
 3817         struct fuse *f = req_fuse_prepare(req);
 
 3822         memset(&buf, 0, 
sizeof(buf));
 
 3824                 err = get_path(f, ino, &path);
 
 3827                 struct fuse_intr_data d;
 
 3828                 fuse_prepare_interrupt(f, req, &d);
 
 3829                 err = fuse_fs_statfs(f->fs, path ? path : 
"/", &buf);
 
 3830                 fuse_finish_interrupt(f, req, &d);
 
 3831                 free_path(f, ino, path);
 
 3837                 reply_err(req, err);
 
 3841                               const char *value, 
size_t size, 
int flags)
 
 3843         struct fuse *f = req_fuse_prepare(req);
 
 3847         err = get_path(f, ino, &path);
 
 3849                 struct fuse_intr_data d;
 
 3850                 fuse_prepare_interrupt(f, req, &d);
 
 3851                 err = fuse_fs_setxattr(f->fs, path, name, value, size, flags);
 
 3852                 fuse_finish_interrupt(f, req, &d);
 
 3853                 free_path(f, ino, path);
 
 3855         reply_err(req, err);
 
 3859                            const char *name, 
char *value, 
size_t size)
 
 3864         err = get_path(f, ino, &path);
 
 3866                 struct fuse_intr_data d;
 
 3867                 fuse_prepare_interrupt(f, req, &d);
 
 3868                 err = fuse_fs_getxattr(f->fs, path, name, value, size);
 
 3869                 fuse_finish_interrupt(f, req, &d);
 
 3870                 free_path(f, ino, path);
 
 3878         struct fuse *f = req_fuse_prepare(req);
 
 3882                 char *value = (
char *) malloc(size);
 
 3883                 if (value == NULL) {
 
 3884                         reply_err(req, -ENOMEM);
 
 3887                 res = common_getxattr(f, req, ino, name, value, size);
 
 3891                         reply_err(req, res);
 
 3894                 res = common_getxattr(f, req, ino, name, NULL, 0);
 
 3898                         reply_err(req, res);
 
 3903                             char *list, 
size_t size)
 
 3908         err = get_path(f, ino, &path);
 
 3910                 struct fuse_intr_data d;
 
 3911                 fuse_prepare_interrupt(f, req, &d);
 
 3912                 err = fuse_fs_listxattr(f->fs, path, list, size);
 
 3913                 fuse_finish_interrupt(f, req, &d);
 
 3914                 free_path(f, ino, path);
 
 3921         struct fuse *f = req_fuse_prepare(req);
 
 3925                 char *list = (
char *) malloc(size);
 
 3927                         reply_err(req, -ENOMEM);
 
 3930                 res = common_listxattr(f, req, ino, list, size);
 
 3934                         reply_err(req, res);
 
 3937                 res = common_listxattr(f, req, ino, NULL, 0);
 
 3941                         reply_err(req, res);
 
 3948         struct fuse *f = req_fuse_prepare(req);
 
 3952         err = get_path(f, ino, &path);
 
 3954                 struct fuse_intr_data d;
 
 3955                 fuse_prepare_interrupt(f, req, &d);
 
 3956                 err = fuse_fs_removexattr(f->fs, path, name);
 
 3957                 fuse_finish_interrupt(f, req, &d);
 
 3958                 free_path(f, ino, path);
 
 3960         reply_err(req, err);
 
 3963 static struct lock *locks_conflict(
struct node *node, 
const struct lock *lock)
 
 3967         for (l = node->locks; l; l = l->next)
 
 3968                 if (l->owner != lock->owner &&
 
 3969                     lock->start <= l->end && l->start <= lock->end &&
 
 3970                     (l->type == F_WRLCK || lock->type == F_WRLCK))
 
 3976 static void delete_lock(
struct lock **lockp)
 
 3978         struct lock *l = *lockp;
 
 3983 static void insert_lock(
struct lock **pos, 
struct lock *lock)
 
 3989 static int locks_insert(
struct node *node, 
struct lock *lock)
 
 3992         struct lock *newl1 = NULL;
 
 3993         struct lock *newl2 = NULL;
 
 3995         if (lock->type != F_UNLCK || lock->start != 0 ||
 
 3996             lock->end != OFFSET_MAX) {
 
 3997                 newl1 = malloc(
sizeof(
struct lock));
 
 3998                 newl2 = malloc(
sizeof(
struct lock));
 
 4000                 if (!newl1 || !newl2) {
 
 4007         for (lp = &node->locks; *lp;) {
 
 4008                 struct lock *l = *lp;
 
 4009                 if (l->owner != lock->owner)
 
 4012                 if (lock->type == l->type) {
 
 4013                         if (l->end < lock->start - 1)
 
 4015                         if (lock->end < l->start - 1)
 
 4017                         if (l->start <= lock->start && lock->end <= l->end)
 
 4019                         if (l->start < lock->start)
 
 4020                                 lock->start = l->start;
 
 4021                         if (lock->end < l->end)
 
 4025                         if (l->end < lock->start)
 
 4027                         if (lock->end < l->start)
 
 4029                         if (lock->start <= l->start && l->end <= lock->end)
 
 4031                         if (l->end <= lock->end) {
 
 4032                                 l->end = lock->start - 1;
 
 4035                         if (lock->start <= l->start) {
 
 4036                                 l->start = lock->end + 1;
 
 4040                         newl2->start = lock->end + 1;
 
 4041                         l->end = lock->start - 1;
 
 4042                         insert_lock(&l->next, newl2);
 
 4052         if (lock->type != F_UNLCK) {
 
 4054                 insert_lock(lp, newl1);
 
 4063 static void flock_to_lock(
struct flock *flock, 
struct lock *lock)
 
 4065         memset(lock, 0, 
sizeof(
struct lock));
 
 4066         lock->type = flock->l_type;
 
 4067         lock->start = flock->l_start;
 
 4069                 flock->l_len ? flock->l_start + flock->l_len - 1 : OFFSET_MAX;
 
 4070         lock->pid = flock->l_pid;
 
 4073 static void lock_to_flock(
struct lock *lock, 
struct flock *flock)
 
 4075         flock->l_type = lock->type;
 
 4076         flock->l_start = lock->start;
 
 4078                 (lock->end == OFFSET_MAX) ? 0 : lock->end - lock->start + 1;
 
 4079         flock->l_pid = lock->pid;
 
 4085         struct fuse_intr_data d;
 
 4091         fuse_prepare_interrupt(f, req, &d);
 
 4092         memset(&lock, 0, 
sizeof(lock));
 
 4093         lock.l_type = F_UNLCK;
 
 4094         lock.l_whence = SEEK_SET;
 
 4095         err = fuse_fs_flush(f->fs, path, fi);
 
 4096         errlock = fuse_fs_lock(f->fs, path, fi, F_SETLK, &lock);
 
 4097         fuse_finish_interrupt(f, req, &d);
 
 4099         if (errlock != -ENOSYS) {
 
 4100                 flock_to_lock(&lock, &l);
 
 4102                 pthread_mutex_lock(&f->lock);
 
 4103                 locks_insert(get_node(f, ino), &l);
 
 4104                 pthread_mutex_unlock(&f->lock);
 
 4117         struct fuse *f = req_fuse_prepare(req);
 
 4118         struct fuse_intr_data d;
 
 4122         get_path_nullok(f, ino, &path);
 
 4124                 err = fuse_flush_common(f, req, ino, path, fi);
 
 4129         fuse_prepare_interrupt(f, req, &d);
 
 4130         fuse_do_release(f, ino, path, fi);
 
 4131         fuse_finish_interrupt(f, req, &d);
 
 4132         free_path(f, ino, path);
 
 4134         reply_err(req, err);
 
 4140         struct fuse *f = req_fuse_prepare(req);
 
 4144         get_path_nullok(f, ino, &path);
 
 4145         err = fuse_flush_common(f, req, ino, path, fi);
 
 4146         free_path(f, ino, path);
 
 4148         reply_err(req, err);
 
 4155         struct fuse *f = req_fuse_prepare(req);
 
 4159         err = get_path_nullok(f, ino, &path);
 
 4161                 struct fuse_intr_data d;
 
 4162                 fuse_prepare_interrupt(f, req, &d);
 
 4163                 err = fuse_fs_lock(f->fs, path, fi, cmd, lock);
 
 4164                 fuse_finish_interrupt(f, req, &d);
 
 4165                 free_path(f, ino, path);
 
 4175         struct lock *conflict;
 
 4176         struct fuse *f = req_fuse(req);
 
 4178         flock_to_lock(lock, &l);
 
 4180         pthread_mutex_lock(&f->lock);
 
 4181         conflict = locks_conflict(get_node(f, ino), &l);
 
 4183                 lock_to_flock(conflict, lock);
 
 4184         pthread_mutex_unlock(&f->lock);
 
 4186                 err = fuse_lock_common(req, ino, fi, lock, F_GETLK);
 
 4193                 reply_err(req, err);
 
 4200         int err = fuse_lock_common(req, ino, fi, lock,
 
 4201                                    sleep ? F_SETLKW : F_SETLK);
 
 4203                 struct fuse *f = req_fuse(req);
 
 4205                 flock_to_lock(lock, &l);
 
 4207                 pthread_mutex_lock(&f->lock);
 
 4208                 locks_insert(get_node(f, ino), &l);
 
 4209                 pthread_mutex_unlock(&f->lock);
 
 4211         reply_err(req, err);
 
 4217         struct fuse *f = req_fuse_prepare(req);
 
 4221         err = get_path_nullok(f, ino, &path);
 
 4223                 struct fuse_intr_data d;
 
 4224                 fuse_prepare_interrupt(f, req, &d);
 
 4225                 err = fuse_fs_flock(f->fs, path, fi, op);
 
 4226                 fuse_finish_interrupt(f, req, &d);
 
 4227                 free_path(f, ino, path);
 
 4229         reply_err(req, err);
 
 4235         struct fuse *f = req_fuse_prepare(req);
 
 4236         struct fuse_intr_data d;
 
 4240         err = get_path(f, ino, &path);
 
 4242                 fuse_prepare_interrupt(f, req, &d);
 
 4243                 err = fuse_fs_bmap(f->fs, path, blocksize, &idx);
 
 4244                 fuse_finish_interrupt(f, req, &d);
 
 4245                 free_path(f, ino, path);
 
 4250                 reply_err(req, err);
 
 4255                            unsigned int flags, 
const void *in_buf,
 
 4256                            size_t in_bufsz, 
size_t out_bufsz)
 
 4258         struct fuse *f = req_fuse_prepare(req);
 
 4259         struct fuse_intr_data d;
 
 4261         char *path, *out_buf = NULL;
 
 4265         if (
flags & FUSE_IOCTL_UNRESTRICTED)
 
 4268         if (
flags & FUSE_IOCTL_DIR)
 
 4269                 get_dirhandle(llfi, &fi);
 
 4275                 out_buf = malloc(out_bufsz);
 
 4280         assert(!in_bufsz || !out_bufsz || in_bufsz == out_bufsz);
 
 4281         if (out_buf && in_bufsz)
 
 4282                 memcpy(out_buf, in_buf, in_bufsz);
 
 4284         err = get_path_nullok(f, ino, &path);
 
 4288         fuse_prepare_interrupt(f, req, &d);
 
 4290         err = fuse_fs_ioctl(f->fs, path, cmd, arg, &fi, 
flags,
 
 4291                             out_buf ? out_buf : (
void *)in_buf);
 
 4293         fuse_finish_interrupt(f, req, &d);
 
 4294         free_path(f, ino, path);
 
 4301         reply_err(req, err);
 
 4309         struct fuse *f = req_fuse_prepare(req);
 
 4310         struct fuse_intr_data d;
 
 4313         unsigned revents = 0;
 
 4315         err = get_path_nullok(f, ino, &path);
 
 4317                 fuse_prepare_interrupt(f, req, &d);
 
 4318                 err = fuse_fs_poll(f->fs, path, fi, ph, &revents);
 
 4319                 fuse_finish_interrupt(f, req, &d);
 
 4320                 free_path(f, ino, path);
 
 4325                 reply_err(req, err);
 
 4331         struct fuse *f = req_fuse_prepare(req);
 
 4332         struct fuse_intr_data d;
 
 4336         err = get_path_nullok(f, ino, &path);
 
 4338                 fuse_prepare_interrupt(f, req, &d);
 
 4339                 err = fuse_fs_fallocate(f->fs, path, mode, offset, length, fi);
 
 4340                 fuse_finish_interrupt(f, req, &d);
 
 4341                 free_path(f, ino, path);
 
 4343         reply_err(req, err);
 
 4352         struct fuse *f = req_fuse_prepare(req);
 
 4353         struct fuse_intr_data d;
 
 4354         char *path_in, *path_out;
 
 4358         err = get_path_nullok(f, nodeid_in, &path_in);
 
 4360                 reply_err(req, err);
 
 4364         err = get_path_nullok(f, nodeid_out, &path_out);
 
 4366                 free_path(f, nodeid_in, path_in);
 
 4367                 reply_err(req, err);
 
 4371         fuse_prepare_interrupt(f, req, &d);
 
 4372         res = fuse_fs_copy_file_range(f->fs, path_in, fi_in, off_in, path_out,
 
 4373                                       fi_out, off_out, len, flags);
 
 4374         fuse_finish_interrupt(f, req, &d);
 
 4379                 reply_err(req, res);
 
 4381         free_path(f, nodeid_in, path_in);
 
 4382         free_path(f, nodeid_out, path_out);
 
 4388         struct fuse *f = req_fuse_prepare(req);
 
 4389         struct fuse_intr_data d;
 
 4394         err = get_path(f, ino, &path);
 
 4396                 reply_err(req, err);
 
 4400         fuse_prepare_interrupt(f, req, &d);
 
 4401         res = fuse_fs_lseek(f->fs, path, off, whence, fi);
 
 4402         fuse_finish_interrupt(f, req, &d);
 
 4403         free_path(f, ino, path);
 
 4407                 reply_err(req, res);
 
 4410 static int clean_delay(
struct fuse *f)
 
 4418         int max_sleep = 3600;
 
 4419         int sleep_time = f->conf.remember / 10;
 
 4421         if (sleep_time > max_sleep)
 
 4423         if (sleep_time < min_sleep)
 
 4430         struct node_lru *lnode;
 
 4431         struct list_head *curr, *next;
 
 4433         struct timespec now;
 
 4435         pthread_mutex_lock(&f->lock);
 
 4439         for (curr = f->lru_table.next; curr != &f->lru_table; curr = next) {
 
 4443                 lnode = list_entry(curr, 
struct node_lru, lru);
 
 4444                 node = &lnode->node;
 
 4446                 age = diff_timespec(&now, &lnode->forget_time);
 
 4447                 if (age <= f->conf.remember)
 
 4450                 assert(node->nlookup == 1);
 
 4453                 if (node->refctr > 1)
 
 4457                 unhash_name(f, node);
 
 4458                 unref_node(f, node);
 
 4460         pthread_mutex_unlock(&f->lock);
 
 4462         return clean_delay(f);
 
 4466         .
init = fuse_lib_init,
 
 4467         .destroy = fuse_lib_destroy,
 
 4468         .lookup = fuse_lib_lookup,
 
 4469         .forget = fuse_lib_forget,
 
 4470         .forget_multi = fuse_lib_forget_multi,
 
 4471         .getattr = fuse_lib_getattr,
 
 4472         .setattr = fuse_lib_setattr,
 
 4473         .access = fuse_lib_access,
 
 4474         .readlink = fuse_lib_readlink,
 
 4475         .mknod = fuse_lib_mknod,
 
 4476         .mkdir = fuse_lib_mkdir,
 
 4477         .unlink = fuse_lib_unlink,
 
 4478         .rmdir = fuse_lib_rmdir,
 
 4479         .symlink = fuse_lib_symlink,
 
 4480         .rename = fuse_lib_rename,
 
 4481         .link = fuse_lib_link,
 
 4482         .create = fuse_lib_create,
 
 4483         .open = fuse_lib_open,
 
 4484         .read = fuse_lib_read,
 
 4485         .write_buf = fuse_lib_write_buf,
 
 4486         .flush = fuse_lib_flush,
 
 4487         .release = fuse_lib_release,
 
 4488         .fsync = fuse_lib_fsync,
 
 4489         .opendir = fuse_lib_opendir,
 
 4490         .readdir = fuse_lib_readdir,
 
 4491         .readdirplus = fuse_lib_readdirplus,
 
 4492         .releasedir = fuse_lib_releasedir,
 
 4493         .fsyncdir = fuse_lib_fsyncdir,
 
 4494         .statfs = fuse_lib_statfs,
 
 4495         .setxattr = fuse_lib_setxattr,
 
 4496         .getxattr = fuse_lib_getxattr,
 
 4497         .listxattr = fuse_lib_listxattr,
 
 4498         .removexattr = fuse_lib_removexattr,
 
 4499         .getlk = fuse_lib_getlk,
 
 4500         .setlk = fuse_lib_setlk,
 
 4501         .flock = fuse_lib_flock,
 
 4502         .bmap = fuse_lib_bmap,
 
 4503         .ioctl = fuse_lib_ioctl,
 
 4504         .poll = fuse_lib_poll,
 
 4505         .fallocate = fuse_lib_fallocate,
 
 4506         .copy_file_range = fuse_lib_copy_file_range,
 
 4507         .lseek = fuse_lib_lseek,
 
 4510 int fuse_notify_poll(
struct fuse_pollhandle *ph)
 
 4520 static int fuse_session_loop_remember(
struct fuse *f)
 
 4522         struct fuse_session *se = f->se;
 
 4524         struct timespec now;
 
 4526         struct pollfd fds = {
 
 4535         next_clean = now.tv_sec;
 
 4540                 if (now.tv_sec < next_clean)
 
 4541                         timeout = next_clean - now.tv_sec;
 
 4545                 res = poll(&fds, 1, timeout * 1000);
 
 4551                 } 
else if (res > 0) {
 
 4552                         res = fuse_session_receive_buf_int(se, &fbuf, NULL);
 
 4559                         fuse_session_process_buf_int(se, &fbuf, NULL);
 
 4563                         next_clean = now.tv_sec + timeout;
 
 4569         return res < 0 ? -1 : 0;
 
 4578                 return fuse_session_loop_remember(f);
 
 4583 FUSE_SYMVER(
"fuse_loop_mt_32", 
"fuse_loop_mt@@FUSE_3.2")
 
 4598 int fuse_loop_mt_31(
struct fuse *f, 
int clone_fd);
 
 4599 FUSE_SYMVER(
"fuse_loop_mt_31", 
"fuse_loop_mt@FUSE_3.0")
 
 4600 int fuse_loop_mt_31(struct fuse *f, 
int clone_fd)
 
 4604         config.max_idle_threads = 10;
 
 4605         return fuse_loop_mt_32(f, &config);
 
 4615         struct fuse_context_i *c = fuse_get_context_internal();
 
 4625         struct fuse_context_i *c = fuse_get_context_internal();
 
 4634         struct fuse_context_i *c = fuse_get_context_internal();
 
 4644         int err = lookup_path_in_cache(f, path, &ino);
 
 4652 #define FUSE_LIB_OPT(t, p, v) { t, offsetof(struct fuse_config, p), v } 
 4654 static const struct fuse_opt fuse_lib_opts[] = {
 
 4657         FUSE_LIB_OPT(
"debug",                 debug, 1),
 
 4658         FUSE_LIB_OPT(
"-d",                    debug, 1),
 
 4659         FUSE_LIB_OPT(
"kernel_cache",          kernel_cache, 1),
 
 4660         FUSE_LIB_OPT(
"auto_cache",            auto_cache, 1),
 
 4661         FUSE_LIB_OPT(
"noauto_cache",          auto_cache, 0),
 
 4662         FUSE_LIB_OPT(
"no_rofd_flush",         no_rofd_flush, 1),
 
 4663         FUSE_LIB_OPT(
"umask=",                set_mode, 1),
 
 4664         FUSE_LIB_OPT(
"umask=%o",              umask, 0),
 
 4665         FUSE_LIB_OPT(
"uid=",                  set_uid, 1),
 
 4666         FUSE_LIB_OPT(
"uid=%d",                uid, 0),
 
 4667         FUSE_LIB_OPT(
"gid=",                  set_gid, 1),
 
 4668         FUSE_LIB_OPT(
"gid=%d",                gid, 0),
 
 4669         FUSE_LIB_OPT(
"entry_timeout=%lf",     entry_timeout, 0),
 
 4670         FUSE_LIB_OPT(
"attr_timeout=%lf",      attr_timeout, 0),
 
 4671         FUSE_LIB_OPT(
"ac_attr_timeout=%lf",   ac_attr_timeout, 0),
 
 4672         FUSE_LIB_OPT(
"ac_attr_timeout=",      ac_attr_timeout_set, 1),
 
 4673         FUSE_LIB_OPT(
"negative_timeout=%lf",  negative_timeout, 0),
 
 4674         FUSE_LIB_OPT(
"noforget",              remember, -1),
 
 4675         FUSE_LIB_OPT(
"remember=%u",           remember, 0),
 
 4676         FUSE_LIB_OPT(
"modules=%s",            modules, 0),
 
 4680 static int fuse_lib_opt_proc(
void *data, 
const char *arg, 
int key,
 
 4683         (void) arg; (void) outargs; (void) data; (void) key;
 
 4690 static const struct fuse_opt fuse_help_opts[] = {
 
 4691         FUSE_LIB_OPT(
"modules=%s", modules, 1),
 
 4696 static void print_module_help(
const char *name,
 
 4703         printf(
"\nOptions for %s module:\n", name);
 
 4713 "    -o kernel_cache        cache files in kernel\n" 
 4714 "    -o [no]auto_cache      enable caching based on modification times (off)\n" 
 4715 "    -o no_rofd_flush       disable flushing of read-only fd on close (off)\n" 
 4716 "    -o umask=M             set file permissions (octal)\n" 
 4717 "    -o uid=N               set file owner\n" 
 4718 "    -o gid=N               set file group\n" 
 4719 "    -o entry_timeout=T     cache timeout for names (1.0s)\n" 
 4720 "    -o negative_timeout=T  cache timeout for deleted names (0.0s)\n" 
 4721 "    -o attr_timeout=T      cache timeout for attributes (1.0s)\n" 
 4722 "    -o ac_attr_timeout=T   auto cache timeout for attributes (attr_timeout)\n" 
 4723 "    -o noforget            never forget cached inodes\n" 
 4724 "    -o remember=T          remember cached inodes for T seconds (0s)\n" 
 4725 "    -o modules=M1[:M2...]  names of modules to push onto filesystem stack\n");
 
 4732         print_module_help(
"subdir", &fuse_module_subdir_factory);
 
 4734         print_module_help(
"iconv", &fuse_module_iconv_factory);
 
 4741                            fuse_lib_opt_proc) == -1
 
 4750         for (module = conf.modules; module; module = next) {
 
 4752                 for (p = module; *p && *p != 
':'; p++);
 
 4753                 next = *p ? p + 1 : NULL;
 
 4756                 m = fuse_get_module(module);
 
 4758                         print_module_help(module, &m->factory);
 
 4764 static int fuse_init_intr_signal(
int signum, 
int *installed)
 
 4766         struct sigaction old_sa;
 
 4768         if (sigaction(signum, NULL, &old_sa) == -1) {
 
 4769                 perror(
"fuse: cannot get old signal handler");
 
 4773         if (old_sa.sa_handler == SIG_DFL) {
 
 4774                 struct sigaction sa;
 
 4776                 memset(&sa, 0, 
sizeof(
struct sigaction));
 
 4777                 sa.sa_handler = fuse_intr_sighandler;
 
 4778                 sigemptyset(&sa.sa_mask);
 
 4780                 if (sigaction(signum, &sa, NULL) == -1) {
 
 4781                         perror(
"fuse: cannot set interrupt signal handler");
 
 4789 static void fuse_restore_intr_signal(
int signum)
 
 4791         struct sigaction sa;
 
 4793         memset(&sa, 0, 
sizeof(
struct sigaction));
 
 4794         sa.sa_handler = SIG_DFL;
 
 4795         sigaction(signum, &sa, NULL);
 
 4799 static int fuse_push_module(
struct fuse *f, 
const char *module,
 
 4802         struct fuse_fs *fs[2] = { f->fs, NULL };
 
 4803         struct fuse_fs *newfs;
 
 4809         newfs = m->factory(args, fs);
 
 4825                 fuse_log(FUSE_LOG_ERR, 
"fuse: warning: library too old, some operations may not not work\n");
 
 4829         fs = (
struct fuse_fs *) calloc(1, 
sizeof(
struct fuse_fs));
 
 4831                 fuse_log(FUSE_LOG_ERR, 
"fuse: failed to allocate fuse_fs object\n");
 
 4835         fs->user_data = user_data;
 
 4837                 memcpy(&fs->op, op, op_size);
 
 4841 static int node_table_init(
struct node_table *t)
 
 4843         t->size = NODE_TABLE_MIN_SIZE;
 
 4844         t->array = (
struct node **) calloc(1, 
sizeof(
struct node *) * t->size);
 
 4845         if (t->array == NULL) {
 
 4846                 fuse_log(FUSE_LOG_ERR, 
"fuse: memory allocation failed\n");
 
 4855 static void *fuse_prune_nodes(
void *fuse)
 
 4857         struct fuse *f = fuse;
 
 4870                 return fuse_start_thread(&f->prune_thread, fuse_prune_nodes, f);
 
 4877         if (lru_enabled(f)) {
 
 4878                 pthread_mutex_lock(&f->lock);
 
 4879                 pthread_cancel(f->prune_thread);
 
 4880                 pthread_mutex_unlock(&f->lock);
 
 4881                 pthread_join(f->prune_thread, NULL);
 
 4886 FUSE_SYMVER(
"fuse_new_31", 
"fuse_new@@FUSE_3.1")
 
 4887 struct fuse *fuse_new_31(struct 
fuse_args *args,
 
 4889                       size_t op_size, 
void *user_data)
 
 4896         f = (
struct fuse *) calloc(1, 
sizeof(
struct fuse));
 
 4898                 fuse_log(FUSE_LOG_ERR, 
"fuse: failed to allocate fuse object\n");
 
 4902         f->conf.entry_timeout = 1.0;
 
 4903         f->conf.attr_timeout = 1.0;
 
 4904         f->conf.negative_timeout = 0.0;
 
 4905         f->conf.intr_signal = FUSE_DEFAULT_INTR_SIGNAL;
 
 4909                            fuse_lib_opt_proc) == -1)
 
 4912         pthread_mutex_lock(&fuse_context_lock);
 
 4913         static int builtin_modules_registered = 0;
 
 4915         if (builtin_modules_registered == 0) {
 
 4917                 fuse_register_module(
"subdir", fuse_module_subdir_factory, NULL);
 
 4919                 fuse_register_module(
"iconv", fuse_module_iconv_factory, NULL);
 
 4921                 builtin_modules_registered= 1;
 
 4923         pthread_mutex_unlock(&fuse_context_lock);
 
 4925         if (fuse_create_context_key() == -1)
 
 4930                 goto out_delete_context_key;
 
 4940         f->pagesize = getpagesize();
 
 4941         init_list_head(&f->partial_slabs);
 
 4942         init_list_head(&f->full_slabs);
 
 4943         init_list_head(&f->lru_table);
 
 4945         if (f->conf.modules) {
 
 4949                 for (module = f->conf.modules; module; module = next) {
 
 4951                         for (p = module; *p && *p != 
':'; p++);
 
 4952                         next = *p ? p + 1 : NULL;
 
 4955                             fuse_push_module(f, module, args) == -1)
 
 4960         if (!f->conf.ac_attr_timeout_set)
 
 4961                 f->conf.ac_attr_timeout = f->conf.attr_timeout;
 
 4963 #if defined(__FreeBSD__) || defined(__NetBSD__) 
 4968         f->conf.readdir_ino = 1;
 
 4975         if (f->conf.debug) {
 
 4976                 fuse_log(FUSE_LOG_DEBUG, 
"nullpath_ok: %i\n", f->conf.nullpath_ok);
 
 4980         f->fs->debug = f->conf.debug;
 
 4983         if (node_table_init(&f->name_table) == -1)
 
 4984                 goto out_free_session;
 
 4986         if (node_table_init(&f->id_table) == -1)
 
 4987                 goto out_free_name_table;
 
 4989         pthread_mutex_init(&f->lock, NULL);
 
 4991         root = alloc_node(f);
 
 4993                 fuse_log(FUSE_LOG_ERR, 
"fuse: memory allocation failed\n");
 
 4994                 goto out_free_id_table;
 
 4996         if (lru_enabled(f)) {
 
 4997                 struct node_lru *lnode = node_lru(root);
 
 4998                 init_list_head(&lnode->lru);
 
 5001         strcpy(root->inline_name, 
"/");
 
 5002         root->name = root->inline_name;
 
 5005             fuse_init_intr_signal(f->conf.intr_signal,
 
 5006                                   &f->intr_installed) == -1)
 
 5009         root->parent = NULL;
 
 5019         free(f->id_table.array);
 
 5020 out_free_name_table:
 
 5021         free(f->name_table.array);
 
 5026                 fuse_put_module(f->fs->m);
 
 5028         free(f->conf.modules);
 
 5029 out_delete_context_key:
 
 5030         fuse_delete_context_key();
 
 5039                          size_t op_size, 
void *private_data);
 
 5040 FUSE_SYMVER(
"fuse_new_30", 
"fuse_new@FUSE_3.0")
 
 5041 struct fuse *fuse_new_30(struct 
fuse_args *args,
 
 5043                          size_t op_size, 
void *user_data)
 
 5047         memset(&conf, 0, 
sizeof(conf));
 
 5050                 FUSE_LIB_OPT(
"-h", show_help, 1),
 
 5051                 FUSE_LIB_OPT(
"--help", show_help, 1),
 
 5056                            fuse_lib_opt_proc) == -1)
 
 5063                 return fuse_new_31(args, op, op_size, user_data);
 
 5070         if (f->conf.intr && f->intr_installed)
 
 5071                 fuse_restore_intr_signal(f->conf.intr_signal);
 
 5074                 fuse_create_context(f);
 
 5076                 for (i = 0; i < f->id_table.size; i++) {
 
 5079                         for (node = f->id_table.array[i]; node != NULL;
 
 5080                              node = node->id_next) {
 
 5081                                 if (node->is_hidden) {
 
 5083                                         if (try_get_path(f, node->nodeid, NULL, &path, NULL, 
false) == 0) {
 
 5084                                                 fuse_fs_unlink(f->fs, path);
 
 5091         for (i = 0; i < f->id_table.size; i++) {
 
 5095                 for (node = f->id_table.array[i]; node != NULL; node = next) {
 
 5096                         next = node->id_next;
 
 5101         assert(list_empty(&f->partial_slabs));
 
 5102         assert(list_empty(&f->full_slabs));
 
 5104         while (fuse_modules) {
 
 5105                 fuse_put_module(fuse_modules);
 
 5107         free(f->id_table.array);
 
 5108         free(f->name_table.array);
 
 5109         pthread_mutex_destroy(&f->lock);
 
 5111         free(f->conf.modules);
 
 5113         fuse_delete_context_key();
 
 5116 int fuse_mount(
struct fuse *f, 
const char *mountpoint) {
 
 5127         return FUSE_VERSION;
 
 5132         return PACKAGE_VERSION;
 
struct fuse_session * fuse_get_session(struct fuse *f)
int fuse_getgroups(int size, gid_t list[])
int fuse_mount(struct fuse *f, const char *mountpoint)
int fuse_interrupted(void)
void fuse_destroy(struct fuse *f)
int fuse_start_cleanup_thread(struct fuse *fuse)
int fuse_invalidate_path(struct fuse *f, const char *path)
int fuse_loop(struct fuse *f)
struct fuse_fs * fuse_fs_new(const struct fuse_operations *op, size_t op_size, void *private_data)
int(* fuse_fill_dir_t)(void *buf, const char *name, const struct stat *stbuf, off_t off, enum fuse_fill_dir_flags flags)
void fuse_exit(struct fuse *f)
int fuse_clean_cache(struct fuse *fuse)
struct fuse_context * fuse_get_context(void)
void fuse_lib_help(struct fuse_args *args)
void fuse_unmount(struct fuse *f)
struct fuse_fs *(* fuse_module_factory_t)(struct fuse_args *args, struct fuse_fs *fs[])
void fuse_stop_cleanup_thread(struct fuse *fuse)
#define FUSE_CAP_SPLICE_READ
size_t fuse_buf_size(const struct fuse_bufvec *bufv)
#define FUSE_CAP_EXPORT_SUPPORT
#define FUSE_CAP_POSIX_LOCKS
ssize_t fuse_buf_copy(struct fuse_bufvec *dst, struct fuse_bufvec *src, enum fuse_buf_copy_flags flags)
const char * fuse_pkgversion(void)
#define FUSE_CAP_FLOCK_LOCKS
void fuse_log(enum fuse_log_level level, const char *fmt,...)
void fuse_session_destroy(struct fuse_session *se)
int fuse_reply_data(fuse_req_t req, struct fuse_bufvec *bufv, enum fuse_buf_copy_flags flags)
int fuse_reply_lock(fuse_req_t req, const struct flock *lock)
int fuse_reply_open(fuse_req_t req, const struct fuse_file_info *fi)
void fuse_session_exit(struct fuse_session *se)
int fuse_reply_poll(fuse_req_t req, unsigned revents)
int fuse_reply_err(fuse_req_t req, int err)
int fuse_reply_buf(fuse_req_t req, const char *buf, size_t size)
struct fuse_req * fuse_req_t
size_t fuse_add_direntry_plus(fuse_req_t req, char *buf, size_t bufsize, const char *name, const struct fuse_entry_param *e, off_t off)
int fuse_session_exited(struct fuse_session *se)
int fuse_req_interrupted(fuse_req_t req)
int fuse_req_getgroups(fuse_req_t req, int size, gid_t list[])
int fuse_reply_readlink(fuse_req_t req, const char *link)
int fuse_session_loop(struct fuse_session *se)
int fuse_reply_bmap(fuse_req_t req, uint64_t idx)
int fuse_reply_entry(fuse_req_t req, const struct fuse_entry_param *e)
void fuse_session_unmount(struct fuse_session *se)
void fuse_reply_none(fuse_req_t req)
void fuse_lowlevel_help(void)
int fuse_lowlevel_notify_inval_inode(struct fuse_session *se, fuse_ino_t ino, off_t off, off_t len)
struct fuse_session * fuse_session_new(struct fuse_args *args, const struct fuse_lowlevel_ops *op, size_t op_size, void *userdata)
int fuse_reply_statfs(fuse_req_t req, const struct statvfs *stbuf)
int fuse_reply_write(fuse_req_t req, size_t count)
int fuse_session_mount(struct fuse_session *se, const char *mountpoint)
void * fuse_req_userdata(fuse_req_t req)
int fuse_lowlevel_notify_poll(struct fuse_pollhandle *ph)
void fuse_req_interrupt_func(fuse_req_t req, fuse_interrupt_func_t func, void *data)
void fuse_session_reset(struct fuse_session *se)
int fuse_reply_create(fuse_req_t req, const struct fuse_entry_param *e, const struct fuse_file_info *fi)
int fuse_reply_lseek(fuse_req_t req, off_t off)
size_t fuse_add_direntry(fuse_req_t req, char *buf, size_t bufsize, const char *name, const struct stat *stbuf, off_t off)
const struct fuse_ctx * fuse_req_ctx(fuse_req_t req)
int fuse_reply_attr(fuse_req_t req, const struct stat *attr, double attr_timeout)
int fuse_reply_ioctl(fuse_req_t req, int result, const void *buf, size_t size)
int fuse_reply_xattr(fuse_req_t req, size_t count)
int fuse_opt_add_arg(struct fuse_args *args, const char *arg)
void fuse_opt_free_args(struct fuse_args *args)
#define FUSE_OPT_KEY(templ, key)
int fuse_opt_parse(struct fuse_args *args, void *data, const struct fuse_opt opts[], fuse_opt_proc_t proc)
#define FUSE_OPT_KEY_KEEP
#define FUSE_ARGS_INIT(argc, argv)
enum fuse_buf_flags flags
void(* getlk)(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi, struct flock *lock)
void(* init)(void *userdata, struct fuse_conn_info *conn)
void(* setlk)(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi, struct flock *lock, int sleep)