/branches/dynload/uspace/srv/vfs/vfs_ops.c |
---|
234,6 → 234,7 |
mr_res.triplet.index = (fs_index_t) rindex; |
mr_res.size = (size_t) rsize; |
mr_res.lnkcnt = (unsigned) rlnkcnt; |
mr_res.type = VFS_NODE_DIRECTORY; |
rootfs.fs_handle = fs_handle; |
rootfs.dev_handle = dev_handle; |
302,6 → 303,16 |
int mode = IPC_GET_ARG3(*request); |
size_t len; |
/* |
* Make sure that we are called with exactly one of L_FILE and |
* L_DIRECTORY. |
*/ |
if ((lflag & (L_FILE | L_DIRECTORY)) == 0 || |
(lflag & (L_FILE | L_DIRECTORY)) == (L_FILE | L_DIRECTORY)) { |
ipc_answer_0(rid, EINVAL); |
return; |
} |
if (oflag & O_CREAT) |
lflag |= L_CREATE; |
if (oflag & O_EXCL) |
466,6 → 477,15 |
else |
rwlock_write_lock(&file->node->contents_rwlock); |
if (file->node->type == VFS_NODE_DIRECTORY) { |
/* |
* Make sure that no one is modifying the namespace |
* while we are in readdir(). |
*/ |
assert(read); |
rwlock_read_lock(&namespace_rwlock); |
} |
int fs_phone = vfs_grab_phone(file->node->fs_handle); |
/* Make a VFS_READ/VFS_WRITE request at the destination FS server. */ |
491,6 → 511,9 |
async_wait_for(msg, &rc); |
size_t bytes = IPC_GET_ARG1(answer); |
if (file->node->type == VFS_NODE_DIRECTORY) |
rwlock_read_unlock(&namespace_rwlock); |
/* Unlock the VFS node. */ |
if (read) |
rwlock_read_unlock(&file->node->contents_rwlock); |
/branches/dynload/uspace/srv/vfs/vfs.h |
---|
190,8 → 190,15 |
*/ |
#define L_PARENT 64 |
typedef enum vfs_node_type { |
VFS_NODE_UNKNOWN, |
VFS_NODE_FILE, |
VFS_NODE_DIRECTORY, |
} vfs_node_type_t; |
typedef struct { |
vfs_triplet_t triplet; |
vfs_node_type_t type; |
size_t size; |
unsigned lnkcnt; |
} vfs_lookup_res_t; |
213,6 → 220,9 |
unsigned lnkcnt; |
link_t nh_link; /**< Node hash-table link. */ |
vfs_node_type_t type; /**< Partial info about the node type. */ |
size_t size; /**< Cached size if the node is a file. */ |
/** |
/branches/dynload/uspace/srv/vfs/vfs_node.c |
---|
175,15 → 175,22 |
node->index = result->triplet.index; |
node->size = result->size; |
node->lnkcnt = result->lnkcnt; |
node->type = result->type; |
link_initialize(&node->nh_link); |
rwlock_initialize(&node->contents_rwlock); |
hash_table_insert(&nodes, key, &node->nh_link); |
} else { |
node = hash_table_get_instance(tmp, vfs_node_t, nh_link); |
if (node->type == VFS_NODE_UNKNOWN && |
result->type != VFS_NODE_UNKNOWN) { |
/* Upgrade the node type. */ |
node->type = result->type; |
} |
} |
assert(node->size == result->size); |
assert(node->lnkcnt == result->lnkcnt); |
assert(node->type == result->type || result->type == VFS_NODE_UNKNOWN); |
_vfs_node_addref(node); |
futex_up(&nodes_futex); |
/branches/dynload/uspace/srv/vfs/vfs_lookup.c |
---|
182,6 → 182,12 |
result->triplet.index = (fs_index_t) IPC_GET_ARG3(answer); |
result->size = (size_t) IPC_GET_ARG4(answer); |
result->lnkcnt = (unsigned) IPC_GET_ARG5(answer); |
if (lflag & L_FILE) |
result->type = VFS_NODE_FILE; |
else if (lflag & L_DIRECTORY) |
result->type = VFS_NODE_DIRECTORY; |
else |
result->type = VFS_NODE_UNKNOWN; |
} |
return rc; |