| 689,6 → 689,33 |
|---|
| ipc_answer_0(rid, EINVAL); |
| } |
| |
| void vfs_truncate(ipc_callid_t rid, ipc_call_t *request) |
| { |
| int fd = IPC_GET_ARG1(*request); |
| size_t size = IPC_GET_ARG2(*request); |
| ipcarg_t rc; |
| |
| vfs_file_t *file = vfs_file_get(fd); |
| if (!file) { |
| ipc_answer_0(rid, ENOENT); |
| return; |
| } |
| futex_down(&file->lock); |
| |
| rwlock_write_lock(&file->node->contents_rwlock); |
| int fs_phone = vfs_grab_phone(file->node->fs_handle); |
| rc = async_req_3_0(fs_phone, VFS_TRUNCATE, (ipcarg_t)file->node->dev_handle, |
| (ipcarg_t)file->node->index, (ipcarg_t)size); |
| vfs_release_phone(fs_phone); |
| if (rc == EOK) |
| file->node->size = size; |
| rwlock_write_unlock(&file->node->contents_rwlock); |
| |
| futex_up(&file->lock); |
| |
| return rc; |
| } |
| |
| atomic_t fs_head_futex = FUTEX_INITIALIZER; |
| link_t fs_head; |
| |