diff options
Diffstat (limited to 'xlators/storage/posix/src/posix.c')
| -rw-r--r-- | xlators/storage/posix/src/posix.c | 178 |
1 files changed, 101 insertions, 77 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c index ed241db2869..8e613ff208e 100644 --- a/xlators/storage/posix/src/posix.c +++ b/xlators/storage/posix/src/posix.c @@ -3360,6 +3360,97 @@ posix_fentrylk (call_frame_t *frame, xlator_t *this, } +int +__posix_fill_readdir (DIR *dir, off_t off, size_t size, gf_dirent_t *entries, + const char *real_path, const char *base_path) +{ + off_t in_case = -1; + size_t filled = 0; + int ret = 0; + int count = 0; + struct dirent *entry = NULL; + int32_t this_size = -1; + gf_dirent_t *this_entry = NULL; + char hidden_path[PATH_MAX] = {0, }; + struct stat statbuf = {0, }; + + if (!off) { + rewinddir (dir); + } else { + seekdir (dir, off); + } + + while (filled <= size) { + in_case = telldir (dir); + + if (in_case == -1) { + gf_log (THIS->name, GF_LOG_ERROR, + "telldir failed on dir=%p: %s", + dir, strerror (errno)); + goto out; + } + + errno = 0; + entry = readdir (dir); + + if (!entry) { + if (errno == EBADF) { + gf_log (THIS->name, GF_LOG_WARNING, + "readdir failed on dir=%p: %s", + dir, strerror (errno)); + goto out; + } + break; + } + + if ((!strcmp (real_path, base_path)) + && (!strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR))) + continue; + + if ((!strcmp (real_path, base_path)) + && (!strncmp (GF_HIDDEN_PATH, entry->d_name, + strlen (GF_HIDDEN_PATH)))) { + snprintf (hidden_path, PATH_MAX, "%s/%s", real_path, + entry->d_name); + ret = lstat (hidden_path, &statbuf); + if (!ret && S_ISDIR (statbuf.st_mode)) + continue; + } + + this_size = max (sizeof (gf_dirent_t), + sizeof (gfs3_dirplist)) + + strlen (entry->d_name) + 1; + + if (this_size + filled > size) { + seekdir (dir, in_case); + break; + } + + this_entry = gf_dirent_for_name (entry->d_name); + + if (!this_entry) { + gf_log (THIS->name, GF_LOG_ERROR, + "could not create gf_dirent for entry %s: (%s)", + entry->d_name, strerror (errno)); + goto out; + } + this_entry->d_off = telldir (dir); + this_entry->d_ino = entry->d_ino; + + list_add_tail (&this_entry->list, &entries->list); + + filled += this_size; + count ++; + } + + if ((!readdir (dir) && (errno == 0))) + /* Indicate EOF */ + errno = ENOENT; +out: + return count; +} + + int32_t posix_do_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t off, int whichop) @@ -3368,15 +3459,10 @@ posix_do_readdir (call_frame_t *frame, xlator_t *this, struct posix_fd *pfd = NULL; DIR *dir = NULL; int ret = -1; - size_t filled = 0; int count = 0; int32_t op_ret = -1; int32_t op_errno = 0; - gf_dirent_t *this_entry = NULL; gf_dirent_t entries; - struct dirent *entry = NULL; - off_t in_case = -1; - int32_t this_size = -1; char *real_path = NULL; int real_path_len = -1; char *entry_path = NULL; @@ -3385,8 +3471,7 @@ posix_do_readdir (call_frame_t *frame, xlator_t *this, struct iatt stbuf = {0, }; char base_path[PATH_MAX] = {0,}; gf_dirent_t *tmp_entry = NULL; - struct stat statbuf = {0, }; - char hidden_path[PATH_MAX] = {0, }; + VALIDATE_OR_GOTO (frame, out); VALIDATE_OR_GOTO (this, out); @@ -3439,75 +3524,16 @@ posix_do_readdir (call_frame_t *frame, xlator_t *this, } - if (!off) { - rewinddir (dir); - } else { - seekdir (dir, off); - } - - while (filled <= size) { - in_case = telldir (dir); - - if (in_case == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "telldir failed on dir=%p: %s", - dir, strerror (errno)); - goto out; - } - - errno = 0; - entry = readdir (dir); - - if (!entry) { - if (errno == EBADF) { - op_errno = errno; - gf_log (this->name, GF_LOG_WARNING, - "readdir failed on dir=%p: %s", - dir, strerror (op_errno)); - goto out; - } - break; - } - - if ((!strcmp(real_path, base_path)) - && (!strcmp(entry->d_name, GF_REPLICATE_TRASH_DIR))) - continue; - - if ((!strcmp (real_path, base_path)) - && (!strncmp (GF_HIDDEN_PATH, entry->d_name, - strlen(GF_HIDDEN_PATH)))) { - snprintf (hidden_path, PATH_MAX, "%s/%s", real_path, - entry->d_name); - ret = lstat (hidden_path, &statbuf); - if (!ret && S_ISDIR (statbuf.st_mode)) - continue; - } - this_size = max (sizeof (gf_dirent_t), - sizeof (gfs3_dirplist)) - + strlen (entry->d_name) + 1; - - if (this_size + filled > size) { - seekdir (dir, in_case); - break; - } - - this_entry = gf_dirent_for_name (entry->d_name); - - if (!this_entry) { - gf_log (this->name, GF_LOG_ERROR, - "could not create gf_dirent for entry %s: (%s)", - entry->d_name, strerror (errno)); - goto out; - } - this_entry->d_off = telldir (dir); - this_entry->d_ino = entry->d_ino; - - list_add_tail (&this_entry->list, &entries.list); + LOCK (&fd->lock); + { + count = __posix_fill_readdir (dir, off, size, &entries, + real_path, base_path); - filled += this_size; - count ++; } + UNLOCK (&fd->lock); + + /* pick ENOENT to indicate EOF */ + op_errno = errno; if (whichop == GF_FOP_READDIRP) { list_for_each_entry (tmp_entry, &entries.list, list) { @@ -3519,10 +3545,8 @@ posix_do_readdir (call_frame_t *frame, xlator_t *this, tmp_entry->d_stat = stbuf; } } + op_ret = count; - errno = 0; - if ((!readdir (dir) && (errno == 0))) - op_errno = ENOENT; out: STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries); |