| 28,10 → 28,10 |
|---|
| |
| /** @addtogroup fs |
| * @{ |
| */ |
| */ |
| |
| /** |
| * @file vfs_lookup.c |
| * @file vfs_lookup.c |
| * @brief |
| */ |
| |
| 46,23 → 46,24 |
|---|
| #include <libadt/list.h> |
| #include <vfs/canonify.h> |
| |
| #define min(a, b) ((a) < (b) ? (a) : (b)) |
| #define min(a, b) ((a) < (b) ? (a) : (b)) |
| |
| futex_t plb_futex = FUTEX_INITIALIZER; |
| link_t plb_head; /**< PLB entry ring buffer. */ |
| link_t plb_head; /**< PLB entry ring buffer. */ |
| uint8_t *plb = NULL; |
| |
| /** Perform a path lookup. |
| * |
| * @param path Path to be resolved; it must be a NULL-terminated |
| * string. |
| * @param lflag Flags to be used during lookup. |
| * @param result Empty structure where the lookup result will be stored. |
| * Can be NULL. |
| * @param altroot If non-empty, will be used instead of rootfs as the root |
| * of the whole VFS tree. |
| * @param path Path to be resolved; it must be a NULL-terminated |
| * string. |
| * @param lflag Flags to be used during lookup. |
| * @param result Empty structure where the lookup result will be stored. |
| * Can be NULL. |
| * @param altroot If non-empty, will be used instead of rootfs as the root |
| * of the whole VFS tree. |
| * |
| * @return EOK on success or an error code from errno.h. |
| * @return EOK on success or an error code from errno.h. |
| * |
| */ |
| int vfs_lookup_internal(char *path, int lflag, vfs_lookup_res_t *result, |
| vfs_pair_t *altroot, ...) |
| 178,7 → 179,7 |
|---|
| memset(plb, 0, cnt2); |
| futex_up(&plb_futex); |
| |
| if ((rc == EOK) && result) { |
| if ((rc == EOK) && (result)) { |
| result->triplet.fs_handle = (fs_handle_t) IPC_GET_ARG1(answer); |
| result->triplet.dev_handle = (dev_handle_t) IPC_GET_ARG2(answer); |
| result->triplet.index = (fs_index_t) IPC_GET_ARG3(answer); |
| 195,6 → 196,41 |
|---|
| return rc; |
| } |
| |
| /** Perform a node open operation. |
| * |
| * @return EOK on success or an error code from errno.h. |
| * |
| */ |
| int vfs_open_node_internal(vfs_lookup_res_t *result) |
| { |
| int phone = vfs_grab_phone(result->triplet.fs_handle); |
| |
| ipc_call_t answer; |
| aid_t req = async_send_2(phone, VFS_OPEN_NODE, |
| (ipcarg_t) result->triplet.dev_handle, |
| (ipcarg_t) result->triplet.index, &answer); |
| |
| vfs_release_phone(phone); |
| |
| async_serialize_start(); |
| ipcarg_t rc; |
| async_wait_for(req, &rc); |
| async_serialize_end(); |
| |
| if (rc == EOK) { |
| result->size = (size_t) IPC_GET_ARG1(answer); |
| result->lnkcnt = (unsigned) IPC_GET_ARG2(answer); |
| if (IPC_GET_ARG3(answer) & L_FILE) |
| result->type = VFS_NODE_FILE; |
| else if (IPC_GET_ARG3(answer) & L_DIRECTORY) |
| result->type = VFS_NODE_DIRECTORY; |
| else |
| result->type = VFS_NODE_UNKNOWN; |
| } |
| |
| return rc; |
| } |
| |
| /** |
| * @} |
| */ |