{
static const u16 fds_per_alloc = 8;
static const u16 max_fds = 0xffff;
+ int ret;
+
+ pthread_mutex_lock(&inode->i_mutex);
DEBUG("Allocating fd for stream ID %u from inode %lx (open = %u, allocated = %u)",
stream_id, inode->ino, inode->num_opened_fds,
struct wimlib_fd **fds;
u16 num_new_fds;
- if (inode->num_allocated_fds == max_fds)
- return -EMFILE;
+ if (inode->num_allocated_fds == max_fds) {
+ ret = -EMFILE;
+ goto out;
+ }
num_new_fds = min(fds_per_alloc,
max_fds - inode->num_allocated_fds);
fds = REALLOC(inode->fds,
(inode->num_allocated_fds + num_new_fds) *
sizeof(inode->fds[0]));
- if (!fds)
- return -ENOMEM;
+ if (!fds) {
+ ret = -ENOMEM;
+ goto out;
+ }
memset(&fds[inode->num_allocated_fds], 0,
num_new_fds * sizeof(fds[0]));
inode->fds = fds;
for (u16 i = 0; ; i++) {
if (!inode->fds[i]) {
struct wimlib_fd *fd = CALLOC(1, sizeof(*fd));
- if (!fd)
- return -ENOMEM;
+ if (!fd) {
+ ret = -ENOMEM;
+ break;
+ }
fd->f_inode = inode;
fd->f_lte = lte;
fd->staging_fd = -1;
inode->fds[i] = fd;
inode->num_opened_fds++;
if (lte)
- lte->num_opened_fds++;
- DEBUG("Allocated fd");
- return 0;
+ atomic_inc(<e->num_opened_fds);
+ DEBUG("Allocated fd (idx = %u)", fd->idx);
+ ret = 0;
+ break;
}
}
+out:
+ pthread_mutex_unlock(&inode->i_mutex);
+ return ret;
}
static void inode_put_fd(struct inode *inode, struct wimlib_fd *fd)
{
- wimlib_assert(fd);
- wimlib_assert(inode);
+ wimlib_assert(fd != NULL);
+ wimlib_assert(inode != NULL);
+
+ pthread_mutex_lock(&inode->i_mutex);
+
wimlib_assert(fd->f_inode == inode);
- wimlib_assert(inode->num_opened_fds);
- wimlib_assert(fd->idx < inode->num_opened_fds);
+ wimlib_assert(inode->num_opened_fds != 0);
+ wimlib_assert(fd->idx < inode->num_allocated_fds);
wimlib_assert(inode->fds[fd->idx] == fd);
inode->fds[fd->idx] = NULL;
FREE(fd);
- if (--inode->num_opened_fds == 0 && inode->link_count == 0)
+ if (--inode->num_opened_fds == 0 && inode->link_count == 0) {
+ pthread_mutex_unlock(&inode->i_mutex);
free_inode(inode);
+ } else {
+ pthread_mutex_unlock(&inode->i_mutex);
+ }
}
static int lte_put_fd(struct lookup_table_entry *lte, struct wimlib_fd *fd)
{
- wimlib_assert(fd);
+ wimlib_assert(fd != NULL);
wimlib_assert(fd->f_lte == lte);
if (!lte) /* Empty stream with no lookup table entry */
static int close_wimlib_fd(struct wimlib_fd *fd)
{
int ret;
- wimlib_assert(fd);
+ wimlib_assert(fd != NULL);
DEBUG("Closing fd (inode = %lu, opened = %u, allocated = %u)",
fd->f_inode->ino, fd->f_inode->num_opened_fds,
fd->f_inode->num_allocated_fds);
return 0;
}
+static int wimfs_chmod(const char *path, mode_t mask)
+{
+ struct dentry *dentry;
+ struct wimfs_context *ctx = wimfs_get_context();
+ struct inode *inode;
+ struct stat stbuf;
+ int ret;
+
+ ret = lookup_resource(ctx->wim, path,
+ get_lookup_flags(ctx) | LOOKUP_FLAG_DIRECTORY_OK,
+ &dentry, NULL, NULL);
+ if (ret != 0)
+ return ret;
+ inode = dentry->d_inode;
+ inode_to_stbuf(inode, NULL, &stbuf);
+ if (mask == stbuf.st_mode)
+ return 0;
+ else
+ return -EPERM;
+
+}
+
static void inode_update_lte_ptr(struct inode *inode,
struct lookup_table_entry *old_lte,
struct lookup_table_entry *new_lte)
lte->refcnt++;
}
- link_dentry(from_dentry, from_dentry_parent);
+ dentry_add_child(from_dentry_parent, from_dentry);
return 0;
}
newdir->d_inode->attributes |= FILE_ATTRIBUTE_DIRECTORY;
newdir->d_inode->resolved = true;
newdir->d_inode->ino = ctx->next_ino++;
- link_dentry(newdir, parent);
+ dentry_add_child(parent, newdir);
return 0;
}
return -ENOMEM;
dentry->d_inode->resolved = true;
dentry->d_inode->ino = ctx->next_ino++;
- link_dentry(dentry, parent);
+ dentry_add_child(parent, dentry);
}
return 0;
}
}
}
+struct fill_params {
+ void *buf;
+ fuse_fill_dir_t filler;
+};
+
+static int dentry_fuse_fill(struct dentry *dentry, void *arg)
+{
+ struct fill_params *fill_params = arg;
+ return fill_params->filler(fill_params->buf, dentry->file_name_utf8,
+ NULL, 0);
+}
+
/* Fills in the entries of the directory specified by @path using the
* FUSE-provided function @filler. */
static int wimfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
{
struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
struct inode *inode;
- struct dentry *child;
if (!fd)
return -EBADF;
inode = fd->f_inode;
+ struct fill_params fill_params = {
+ .buf = buf,
+ .filler = filler,
+ };
+
filler(buf, ".", NULL, 0);
filler(buf, "..", NULL, 0);
- child = inode->children;
-
- if (!child)
- return 0;
-
- do {
- if (filler(buf, child->file_name_utf8, NULL, 0))
- return 0;
- child = child->next;
- } while (child != inode->children);
- return 0;
+ return for_dentry_in_rbtree(inode->children.rb_node,
+ dentry_fuse_fill, &fill_params);
}
* directory */
if (!dentry_is_directory(dst))
return -ENOTDIR;
- if (dst->d_inode->children != NULL)
+ if (inode_has_children(dst->d_inode))
return -ENOTEMPTY;
}
parent_of_dst = dst->parent;
src->file_name_utf8_len = file_name_utf8_len;
unlink_dentry(src);
- link_dentry(src, parent_of_dst);
+ dentry_add_child(parent_of_dst, src);
return 0;
}
if (inode_set_symlink(inode, to, ctx->wim->lookup_table, NULL) != 0)
goto out_free_dentry;
- link_dentry(dentry, dentry_parent);
+ dentry_add_child(dentry_parent, dentry);
return 0;
out_free_dentry:
free_dentry(dentry);
{
struct dentry *dentry;
struct inode *inode;
+ WIMStruct *w = wimfs_get_WIMStruct();
+
dentry = get_dentry(w, path);
if (!dentry)
return -ENOENT;
static struct fuse_operations wimfs_operations = {
.access = wimfs_access,
+ .chmod = wimfs_chmod,
.destroy = wimfs_destroy,
#if 0
.fallocate = wimfs_fallocate,
argv[argc++] = "imagex";
argv[argc++] = dir_copy;
- argv[argc++] = "-s"; /* disable multi-threaded operation */
+
+ /* disable multi-threaded operation for read-write mounts */
+ if (flags & WIMLIB_MOUNT_FLAG_READWRITE)
+ argv[argc++] = "-s";
if (flags & WIMLIB_MOUNT_FLAG_DEBUG)
argv[argc++] = "-d";
git://wimlib.net / wimlib / blobdiff