Rev 3246 | Rev 3292 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 3246 | Rev 3255 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jakub Jermar |
2 | * Copyright (c) 2008 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup libc |
29 | /** @addtogroup libc |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <vfs/vfs.h> |
35 | #include <vfs/vfs.h> |
36 | #include <vfs/canonify.h> |
36 | #include <vfs/canonify.h> |
37 | #include <stdlib.h> |
37 | #include <stdlib.h> |
38 | #include <unistd.h> |
38 | #include <unistd.h> |
39 | #include <dirent.h> |
39 | #include <dirent.h> |
40 | #include <fcntl.h> |
40 | #include <fcntl.h> |
41 | #include <sys/stat.h> |
41 | #include <sys/stat.h> |
42 | #include <stdio.h> |
42 | #include <stdio.h> |
43 | #include <sys/types.h> |
43 | #include <sys/types.h> |
44 | #include <ipc/ipc.h> |
44 | #include <ipc/ipc.h> |
45 | #include <ipc/services.h> |
45 | #include <ipc/services.h> |
46 | #include <async.h> |
46 | #include <async.h> |
47 | #include <atomic.h> |
47 | #include <atomic.h> |
48 | #include <futex.h> |
48 | #include <futex.h> |
49 | #include <errno.h> |
49 | #include <errno.h> |
50 | #include <string.h> |
50 | #include <string.h> |
51 | #include <ipc/devmap.h> |
51 | #include <ipc/devmap.h> |
52 | #include "../../srv/vfs/vfs.h" |
52 | #include "../../srv/vfs/vfs.h" |
53 | 53 | ||
54 | int vfs_phone = -1; |
54 | int vfs_phone = -1; |
55 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
55 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
56 | 56 | ||
57 | futex_t cwd_futex = FUTEX_INITIALIZER; |
57 | futex_t cwd_futex = FUTEX_INITIALIZER; |
58 | DIR *cwd_dir = NULL; |
58 | DIR *cwd_dir = NULL; |
59 | char *cwd_path = NULL; |
59 | char *cwd_path = NULL; |
60 | size_t cwd_len = 0; |
60 | size_t cwd_len = 0; |
61 | 61 | ||
62 | static char *absolutize(const char *path, size_t *retlen) |
62 | static char *absolutize(const char *path, size_t *retlen) |
63 | { |
63 | { |
64 | char *ncwd_path; |
64 | char *ncwd_path; |
65 | 65 | ||
66 | futex_down(&cwd_futex); |
66 | futex_down(&cwd_futex); |
67 | size_t len = strlen(path); |
67 | size_t len = strlen(path); |
68 | if (*path != '/') { |
68 | if (*path != '/') { |
69 | if (!cwd_path) { |
69 | if (!cwd_path) { |
70 | futex_up(&cwd_futex); |
70 | futex_up(&cwd_futex); |
71 | return NULL; |
71 | return NULL; |
72 | } |
72 | } |
73 | ncwd_path = malloc(len + cwd_len + 1); |
73 | ncwd_path = malloc(len + cwd_len + 1); |
74 | if (!ncwd_path) { |
74 | if (!ncwd_path) { |
75 | futex_up(&cwd_futex); |
75 | futex_up(&cwd_futex); |
76 | return NULL; |
76 | return NULL; |
77 | } |
77 | } |
78 | strcpy(ncwd_path, cwd_path); |
78 | strcpy(ncwd_path, cwd_path); |
79 | ncwd_path[cwd_len] = '/'; |
79 | ncwd_path[cwd_len] = '/'; |
80 | ncwd_path[cwd_len + 1] = '\0'; |
80 | ncwd_path[cwd_len + 1] = '\0'; |
81 | } else { |
81 | } else { |
82 | ncwd_path = malloc(len + 1); |
82 | ncwd_path = malloc(len + 1); |
83 | if (!ncwd_path) { |
83 | if (!ncwd_path) { |
84 | futex_up(&cwd_futex); |
84 | futex_up(&cwd_futex); |
85 | return NULL; |
85 | return NULL; |
86 | } |
86 | } |
87 | ncwd_path[0] = '\0'; |
87 | ncwd_path[0] = '\0'; |
88 | } |
88 | } |
89 | strcat(ncwd_path, path); |
89 | strcat(ncwd_path, path); |
90 | if (!canonify(ncwd_path, retlen)) { |
90 | if (!canonify(ncwd_path, retlen)) { |
91 | futex_up(&cwd_futex); |
91 | futex_up(&cwd_futex); |
92 | free(ncwd_path); |
92 | free(ncwd_path); |
93 | return NULL; |
93 | return NULL; |
94 | } |
94 | } |
95 | futex_up(&cwd_futex); |
95 | futex_up(&cwd_futex); |
96 | return ncwd_path; |
96 | return ncwd_path; |
97 | } |
97 | } |
98 | 98 | ||
99 | static int vfs_connect(void) |
99 | static int vfs_connect(void) |
100 | { |
100 | { |
101 | if (vfs_phone < 0) |
101 | if (vfs_phone < 0) |
102 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0); |
102 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0); |
103 | return vfs_phone; |
103 | return vfs_phone; |
104 | } |
104 | } |
105 | 105 | ||
106 | static int device_get_handle(char *name, dev_handle_t *handle) |
106 | static int device_get_handle(char *name, dev_handle_t *handle) |
107 | { |
107 | { |
108 | int phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, |
108 | int phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, |
109 | 0); |
109 | 0); |
110 | if (phone < 0) |
110 | if (phone < 0) |
111 | return phone; |
111 | return phone; |
112 | 112 | ||
113 | ipc_call_t answer; |
113 | ipc_call_t answer; |
114 | aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, 0, 0, |
114 | aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, 0, 0, |
115 | &answer); |
115 | &answer); |
116 | 116 | ||
117 | ipcarg_t retval = ipc_data_write_start(phone, name, strlen(name) + 1); |
117 | ipcarg_t retval = ipc_data_write_start(phone, name, strlen(name) + 1); |
118 | 118 | ||
119 | if (retval != EOK) { |
119 | if (retval != EOK) { |
120 | async_wait_for(req, NULL); |
120 | async_wait_for(req, NULL); |
121 | ipc_hangup(phone); |
121 | ipc_hangup(phone); |
122 | return retval; |
122 | return retval; |
123 | } |
123 | } |
124 | 124 | ||
125 | async_wait_for(req, &retval); |
125 | async_wait_for(req, &retval); |
126 | 126 | ||
127 | if (handle != NULL) |
127 | if (handle != NULL) |
128 | *handle = -1; |
128 | *handle = -1; |
129 | 129 | ||
130 | if (retval == EOK) { |
130 | if (retval == EOK) { |
131 | if (handle != NULL) |
131 | if (handle != NULL) |
132 | *handle = (dev_handle_t) IPC_GET_ARG1(answer); |
132 | *handle = (dev_handle_t) IPC_GET_ARG1(answer); |
133 | } |
133 | } |
134 | 134 | ||
135 | ipc_hangup(phone); |
135 | ipc_hangup(phone); |
136 | return retval; |
136 | return retval; |
137 | } |
137 | } |
138 | 138 | ||
139 | int mount(const char *fs_name, const char *mp, const char *dev) |
139 | int mount(const char *fs_name, const char *mp, const char *dev) |
140 | { |
140 | { |
141 | int res; |
141 | int res; |
142 | ipcarg_t rc; |
142 | ipcarg_t rc; |
143 | aid_t req; |
143 | aid_t req; |
144 | dev_handle_t dev_handle; |
144 | dev_handle_t dev_handle; |
145 | 145 | ||
146 | res = device_get_handle(dev, &dev_handle); |
146 | res = device_get_handle(dev, &dev_handle); |
147 | if (res != EOK) |
147 | if (res != EOK) |
148 | return res; |
148 | return res; |
149 | 149 | ||
150 | size_t mpa_len; |
150 | size_t mpa_len; |
151 | char *mpa = absolutize(mp, &mpa_len); |
151 | char *mpa = absolutize(mp, &mpa_len); |
152 | if (!mpa) |
152 | if (!mpa) |
153 | return ENOMEM; |
153 | return ENOMEM; |
154 | 154 | ||
155 | futex_down(&vfs_phone_futex); |
155 | futex_down(&vfs_phone_futex); |
156 | async_serialize_start(); |
156 | async_serialize_start(); |
157 | if (vfs_phone < 0) { |
157 | if (vfs_phone < 0) { |
158 | res = vfs_connect(); |
158 | res = vfs_connect(); |
159 | if (res < 0) { |
159 | if (res < 0) { |
160 | async_serialize_end(); |
160 | async_serialize_end(); |
161 | futex_up(&vfs_phone_futex); |
161 | futex_up(&vfs_phone_futex); |
162 | free(mpa); |
162 | free(mpa); |
163 | return res; |
163 | return res; |
164 | } |
164 | } |
165 | } |
165 | } |
166 | req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL); |
166 | req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL); |
167 | rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name)); |
167 | rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name)); |
168 | if (rc != EOK) { |
168 | if (rc != EOK) { |
169 | async_wait_for(req, NULL); |
169 | async_wait_for(req, NULL); |
170 | async_serialize_end(); |
170 | async_serialize_end(); |
171 | futex_up(&vfs_phone_futex); |
171 | futex_up(&vfs_phone_futex); |
172 | free(mpa); |
172 | free(mpa); |
173 | return (int) rc; |
173 | return (int) rc; |
174 | } |
174 | } |
- | 175 | /* Ask VFS whether it likes fs_name. */ |
|
- | 176 | rc = async_req_0_0(vfs_phone, IPC_M_PING); |
|
- | 177 | if (rc != EOK) { |
|
- | 178 | async_wait_for(req, NULL); |
|
- | 179 | async_serialize_end(); |
|
- | 180 | futex_up(&vfs_phone_futex); |
|
- | 181 | free(mpa); |
|
- | 182 | return (int) rc; |
|
- | 183 | } |
|
175 | rc = ipc_data_write_start(vfs_phone, (void *)mpa, mpa_len); |
184 | rc = ipc_data_write_start(vfs_phone, (void *)mpa, mpa_len); |
176 | if (rc != EOK) { |
185 | if (rc != EOK) { |
177 | async_wait_for(req, NULL); |
186 | async_wait_for(req, NULL); |
178 | async_serialize_end(); |
187 | async_serialize_end(); |
179 | futex_up(&vfs_phone_futex); |
188 | futex_up(&vfs_phone_futex); |
180 | free(mpa); |
189 | free(mpa); |
181 | return (int) rc; |
190 | return (int) rc; |
182 | } |
191 | } |
183 | async_wait_for(req, &rc); |
192 | async_wait_for(req, &rc); |
184 | async_serialize_end(); |
193 | async_serialize_end(); |
185 | futex_up(&vfs_phone_futex); |
194 | futex_up(&vfs_phone_futex); |
186 | free(mpa); |
195 | free(mpa); |
187 | return (int) rc; |
196 | return (int) rc; |
188 | } |
197 | } |
189 | 198 | ||
190 | static int _open(const char *path, int lflag, int oflag, ...) |
199 | static int _open(const char *path, int lflag, int oflag, ...) |
191 | { |
200 | { |
192 | int res; |
201 | int res; |
193 | ipcarg_t rc; |
202 | ipcarg_t rc; |
194 | ipc_call_t answer; |
203 | ipc_call_t answer; |
195 | aid_t req; |
204 | aid_t req; |
196 | 205 | ||
197 | size_t pa_len; |
206 | size_t pa_len; |
198 | char *pa = absolutize(path, &pa_len); |
207 | char *pa = absolutize(path, &pa_len); |
199 | if (!pa) |
208 | if (!pa) |
200 | return ENOMEM; |
209 | return ENOMEM; |
201 | 210 | ||
202 | futex_down(&vfs_phone_futex); |
211 | futex_down(&vfs_phone_futex); |
203 | async_serialize_start(); |
212 | async_serialize_start(); |
204 | if (vfs_phone < 0) { |
213 | if (vfs_phone < 0) { |
205 | res = vfs_connect(); |
214 | res = vfs_connect(); |
206 | if (res < 0) { |
215 | if (res < 0) { |
207 | async_serialize_end(); |
216 | async_serialize_end(); |
208 | futex_up(&vfs_phone_futex); |
217 | futex_up(&vfs_phone_futex); |
209 | free(pa); |
218 | free(pa); |
210 | return res; |
219 | return res; |
211 | } |
220 | } |
212 | } |
221 | } |
213 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
222 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
214 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
223 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
215 | if (rc != EOK) { |
224 | if (rc != EOK) { |
216 | async_wait_for(req, NULL); |
225 | async_wait_for(req, NULL); |
217 | async_serialize_end(); |
226 | async_serialize_end(); |
218 | futex_up(&vfs_phone_futex); |
227 | futex_up(&vfs_phone_futex); |
219 | free(pa); |
228 | free(pa); |
220 | return (int) rc; |
229 | return (int) rc; |
221 | } |
230 | } |
222 | async_wait_for(req, &rc); |
231 | async_wait_for(req, &rc); |
223 | async_serialize_end(); |
232 | async_serialize_end(); |
224 | futex_up(&vfs_phone_futex); |
233 | futex_up(&vfs_phone_futex); |
225 | free(pa); |
234 | free(pa); |
226 | 235 | ||
227 | if (rc != EOK) |
236 | if (rc != EOK) |
228 | return (int) rc; |
237 | return (int) rc; |
229 | return (int) IPC_GET_ARG1(answer); |
238 | return (int) IPC_GET_ARG1(answer); |
230 | } |
239 | } |
231 | 240 | ||
232 | int open(const char *path, int oflag, ...) |
241 | int open(const char *path, int oflag, ...) |
233 | { |
242 | { |
234 | return _open(path, L_FILE, oflag); |
243 | return _open(path, L_FILE, oflag); |
235 | } |
244 | } |
236 | 245 | ||
237 | int close(int fildes) |
246 | int close(int fildes) |
238 | { |
247 | { |
239 | int res; |
248 | int res; |
240 | ipcarg_t rc; |
249 | ipcarg_t rc; |
241 | 250 | ||
242 | futex_down(&vfs_phone_futex); |
251 | futex_down(&vfs_phone_futex); |
243 | async_serialize_start(); |
252 | async_serialize_start(); |
244 | if (vfs_phone < 0) { |
253 | if (vfs_phone < 0) { |
245 | res = vfs_connect(); |
254 | res = vfs_connect(); |
246 | if (res < 0) { |
255 | if (res < 0) { |
247 | async_serialize_end(); |
256 | async_serialize_end(); |
248 | futex_up(&vfs_phone_futex); |
257 | futex_up(&vfs_phone_futex); |
249 | return res; |
258 | return res; |
250 | } |
259 | } |
251 | } |
260 | } |
252 | 261 | ||
253 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
262 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
254 | 263 | ||
255 | async_serialize_end(); |
264 | async_serialize_end(); |
256 | futex_up(&vfs_phone_futex); |
265 | futex_up(&vfs_phone_futex); |
257 | 266 | ||
258 | return (int)rc; |
267 | return (int)rc; |
259 | } |
268 | } |
260 | 269 | ||
261 | ssize_t read(int fildes, void *buf, size_t nbyte) |
270 | ssize_t read(int fildes, void *buf, size_t nbyte) |
262 | { |
271 | { |
263 | int res; |
272 | int res; |
264 | ipcarg_t rc; |
273 | ipcarg_t rc; |
265 | ipc_call_t answer; |
274 | ipc_call_t answer; |
266 | aid_t req; |
275 | aid_t req; |
267 | 276 | ||
268 | futex_down(&vfs_phone_futex); |
277 | futex_down(&vfs_phone_futex); |
269 | async_serialize_start(); |
278 | async_serialize_start(); |
270 | if (vfs_phone < 0) { |
279 | if (vfs_phone < 0) { |
271 | res = vfs_connect(); |
280 | res = vfs_connect(); |
272 | if (res < 0) { |
281 | if (res < 0) { |
273 | async_serialize_end(); |
282 | async_serialize_end(); |
274 | futex_up(&vfs_phone_futex); |
283 | futex_up(&vfs_phone_futex); |
275 | return res; |
284 | return res; |
276 | } |
285 | } |
277 | } |
286 | } |
278 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
287 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
279 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
288 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
280 | if (rc != EOK) { |
289 | if (rc != EOK) { |
281 | async_wait_for(req, NULL); |
290 | async_wait_for(req, NULL); |
282 | async_serialize_end(); |
291 | async_serialize_end(); |
283 | futex_up(&vfs_phone_futex); |
292 | futex_up(&vfs_phone_futex); |
284 | return (ssize_t) rc; |
293 | return (ssize_t) rc; |
285 | } |
294 | } |
286 | async_wait_for(req, &rc); |
295 | async_wait_for(req, &rc); |
287 | async_serialize_end(); |
296 | async_serialize_end(); |
288 | futex_up(&vfs_phone_futex); |
297 | futex_up(&vfs_phone_futex); |
289 | if (rc == EOK) |
298 | if (rc == EOK) |
290 | return (ssize_t) IPC_GET_ARG1(answer); |
299 | return (ssize_t) IPC_GET_ARG1(answer); |
291 | else |
300 | else |
292 | return -1; |
301 | return -1; |
293 | } |
302 | } |
294 | 303 | ||
295 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
304 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
296 | { |
305 | { |
297 | int res; |
306 | int res; |
298 | ipcarg_t rc; |
307 | ipcarg_t rc; |
299 | ipc_call_t answer; |
308 | ipc_call_t answer; |
300 | aid_t req; |
309 | aid_t req; |
301 | 310 | ||
302 | futex_down(&vfs_phone_futex); |
311 | futex_down(&vfs_phone_futex); |
303 | async_serialize_start(); |
312 | async_serialize_start(); |
304 | if (vfs_phone < 0) { |
313 | if (vfs_phone < 0) { |
305 | res = vfs_connect(); |
314 | res = vfs_connect(); |
306 | if (res < 0) { |
315 | if (res < 0) { |
307 | async_serialize_end(); |
316 | async_serialize_end(); |
308 | futex_up(&vfs_phone_futex); |
317 | futex_up(&vfs_phone_futex); |
309 | return res; |
318 | return res; |
310 | } |
319 | } |
311 | } |
320 | } |
312 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
321 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
313 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
322 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
314 | if (rc != EOK) { |
323 | if (rc != EOK) { |
315 | async_wait_for(req, NULL); |
324 | async_wait_for(req, NULL); |
316 | async_serialize_end(); |
325 | async_serialize_end(); |
317 | futex_up(&vfs_phone_futex); |
326 | futex_up(&vfs_phone_futex); |
318 | return (ssize_t) rc; |
327 | return (ssize_t) rc; |
319 | } |
328 | } |
320 | async_wait_for(req, &rc); |
329 | async_wait_for(req, &rc); |
321 | async_serialize_end(); |
330 | async_serialize_end(); |
322 | futex_up(&vfs_phone_futex); |
331 | futex_up(&vfs_phone_futex); |
323 | if (rc == EOK) |
332 | if (rc == EOK) |
324 | return (ssize_t) IPC_GET_ARG1(answer); |
333 | return (ssize_t) IPC_GET_ARG1(answer); |
325 | else |
334 | else |
326 | return -1; |
335 | return -1; |
327 | } |
336 | } |
328 | 337 | ||
329 | off_t lseek(int fildes, off_t offset, int whence) |
338 | off_t lseek(int fildes, off_t offset, int whence) |
330 | { |
339 | { |
331 | int res; |
340 | int res; |
332 | ipcarg_t rc; |
341 | ipcarg_t rc; |
333 | 342 | ||
334 | futex_down(&vfs_phone_futex); |
343 | futex_down(&vfs_phone_futex); |
335 | async_serialize_start(); |
344 | async_serialize_start(); |
336 | if (vfs_phone < 0) { |
345 | if (vfs_phone < 0) { |
337 | res = vfs_connect(); |
346 | res = vfs_connect(); |
338 | if (res < 0) { |
347 | if (res < 0) { |
339 | async_serialize_end(); |
348 | async_serialize_end(); |
340 | futex_up(&vfs_phone_futex); |
349 | futex_up(&vfs_phone_futex); |
341 | return res; |
350 | return res; |
342 | } |
351 | } |
343 | } |
352 | } |
344 | 353 | ||
345 | off_t newoffs; |
354 | off_t newoffs; |
346 | rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, |
355 | rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, |
347 | (ipcarg_t)&newoffs); |
356 | (ipcarg_t)&newoffs); |
348 | 357 | ||
349 | async_serialize_end(); |
358 | async_serialize_end(); |
350 | futex_up(&vfs_phone_futex); |
359 | futex_up(&vfs_phone_futex); |
351 | 360 | ||
352 | if (rc != EOK) |
361 | if (rc != EOK) |
353 | return (off_t) -1; |
362 | return (off_t) -1; |
354 | 363 | ||
355 | return newoffs; |
364 | return newoffs; |
356 | } |
365 | } |
357 | 366 | ||
358 | int ftruncate(int fildes, off_t length) |
367 | int ftruncate(int fildes, off_t length) |
359 | { |
368 | { |
360 | int res; |
369 | int res; |
361 | ipcarg_t rc; |
370 | ipcarg_t rc; |
362 | 371 | ||
363 | futex_down(&vfs_phone_futex); |
372 | futex_down(&vfs_phone_futex); |
364 | async_serialize_start(); |
373 | async_serialize_start(); |
365 | if (vfs_phone < 0) { |
374 | if (vfs_phone < 0) { |
366 | res = vfs_connect(); |
375 | res = vfs_connect(); |
367 | if (res < 0) { |
376 | if (res < 0) { |
368 | async_serialize_end(); |
377 | async_serialize_end(); |
369 | futex_up(&vfs_phone_futex); |
378 | futex_up(&vfs_phone_futex); |
370 | return res; |
379 | return res; |
371 | } |
380 | } |
372 | } |
381 | } |
373 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
382 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
374 | async_serialize_end(); |
383 | async_serialize_end(); |
375 | futex_up(&vfs_phone_futex); |
384 | futex_up(&vfs_phone_futex); |
376 | return (int) rc; |
385 | return (int) rc; |
377 | } |
386 | } |
378 | 387 | ||
379 | DIR *opendir(const char *dirname) |
388 | DIR *opendir(const char *dirname) |
380 | { |
389 | { |
381 | DIR *dirp = malloc(sizeof(DIR)); |
390 | DIR *dirp = malloc(sizeof(DIR)); |
382 | if (!dirp) |
391 | if (!dirp) |
383 | return NULL; |
392 | return NULL; |
384 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
393 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
385 | if (dirp->fd < 0) { |
394 | if (dirp->fd < 0) { |
386 | free(dirp); |
395 | free(dirp); |
387 | return NULL; |
396 | return NULL; |
388 | } |
397 | } |
389 | return dirp; |
398 | return dirp; |
390 | } |
399 | } |
391 | 400 | ||
392 | struct dirent *readdir(DIR *dirp) |
401 | struct dirent *readdir(DIR *dirp) |
393 | { |
402 | { |
394 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
403 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
395 | if (len <= 0) |
404 | if (len <= 0) |
396 | return NULL; |
405 | return NULL; |
397 | return &dirp->res; |
406 | return &dirp->res; |
398 | } |
407 | } |
399 | 408 | ||
400 | void rewinddir(DIR *dirp) |
409 | void rewinddir(DIR *dirp) |
401 | { |
410 | { |
402 | (void) lseek(dirp->fd, 0, SEEK_SET); |
411 | (void) lseek(dirp->fd, 0, SEEK_SET); |
403 | } |
412 | } |
404 | 413 | ||
405 | int closedir(DIR *dirp) |
414 | int closedir(DIR *dirp) |
406 | { |
415 | { |
407 | (void) close(dirp->fd); |
416 | (void) close(dirp->fd); |
408 | free(dirp); |
417 | free(dirp); |
409 | return 0; |
418 | return 0; |
410 | } |
419 | } |
411 | 420 | ||
412 | int mkdir(const char *path, mode_t mode) |
421 | int mkdir(const char *path, mode_t mode) |
413 | { |
422 | { |
414 | int res; |
423 | int res; |
415 | ipcarg_t rc; |
424 | ipcarg_t rc; |
416 | aid_t req; |
425 | aid_t req; |
417 | 426 | ||
418 | size_t pa_len; |
427 | size_t pa_len; |
419 | char *pa = absolutize(path, &pa_len); |
428 | char *pa = absolutize(path, &pa_len); |
420 | if (!pa) |
429 | if (!pa) |
421 | return ENOMEM; |
430 | return ENOMEM; |
422 | 431 | ||
423 | futex_down(&vfs_phone_futex); |
432 | futex_down(&vfs_phone_futex); |
424 | async_serialize_start(); |
433 | async_serialize_start(); |
425 | if (vfs_phone < 0) { |
434 | if (vfs_phone < 0) { |
426 | res = vfs_connect(); |
435 | res = vfs_connect(); |
427 | if (res < 0) { |
436 | if (res < 0) { |
428 | async_serialize_end(); |
437 | async_serialize_end(); |
429 | futex_up(&vfs_phone_futex); |
438 | futex_up(&vfs_phone_futex); |
430 | free(pa); |
439 | free(pa); |
431 | return res; |
440 | return res; |
432 | } |
441 | } |
433 | } |
442 | } |
434 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
443 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
435 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
444 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
436 | if (rc != EOK) { |
445 | if (rc != EOK) { |
437 | async_wait_for(req, NULL); |
446 | async_wait_for(req, NULL); |
438 | async_serialize_end(); |
447 | async_serialize_end(); |
439 | futex_up(&vfs_phone_futex); |
448 | futex_up(&vfs_phone_futex); |
440 | free(pa); |
449 | free(pa); |
441 | return (int) rc; |
450 | return (int) rc; |
442 | } |
451 | } |
443 | async_wait_for(req, &rc); |
452 | async_wait_for(req, &rc); |
444 | async_serialize_end(); |
453 | async_serialize_end(); |
445 | futex_up(&vfs_phone_futex); |
454 | futex_up(&vfs_phone_futex); |
446 | free(pa); |
455 | free(pa); |
447 | return rc; |
456 | return rc; |
448 | } |
457 | } |
449 | 458 | ||
450 | static int _unlink(const char *path, int lflag) |
459 | static int _unlink(const char *path, int lflag) |
451 | { |
460 | { |
452 | int res; |
461 | int res; |
453 | ipcarg_t rc; |
462 | ipcarg_t rc; |
454 | aid_t req; |
463 | aid_t req; |
455 | 464 | ||
456 | size_t pa_len; |
465 | size_t pa_len; |
457 | char *pa = absolutize(path, &pa_len); |
466 | char *pa = absolutize(path, &pa_len); |
458 | if (!pa) |
467 | if (!pa) |
459 | return ENOMEM; |
468 | return ENOMEM; |
460 | 469 | ||
461 | futex_down(&vfs_phone_futex); |
470 | futex_down(&vfs_phone_futex); |
462 | async_serialize_start(); |
471 | async_serialize_start(); |
463 | if (vfs_phone < 0) { |
472 | if (vfs_phone < 0) { |
464 | res = vfs_connect(); |
473 | res = vfs_connect(); |
465 | if (res < 0) { |
474 | if (res < 0) { |
466 | async_serialize_end(); |
475 | async_serialize_end(); |
467 | futex_up(&vfs_phone_futex); |
476 | futex_up(&vfs_phone_futex); |
468 | free(pa); |
477 | free(pa); |
469 | return res; |
478 | return res; |
470 | } |
479 | } |
471 | } |
480 | } |
472 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
481 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
473 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
482 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
474 | if (rc != EOK) { |
483 | if (rc != EOK) { |
475 | async_wait_for(req, NULL); |
484 | async_wait_for(req, NULL); |
476 | async_serialize_end(); |
485 | async_serialize_end(); |
477 | futex_up(&vfs_phone_futex); |
486 | futex_up(&vfs_phone_futex); |
478 | free(pa); |
487 | free(pa); |
479 | return (int) rc; |
488 | return (int) rc; |
480 | } |
489 | } |
481 | async_wait_for(req, &rc); |
490 | async_wait_for(req, &rc); |
482 | async_serialize_end(); |
491 | async_serialize_end(); |
483 | futex_up(&vfs_phone_futex); |
492 | futex_up(&vfs_phone_futex); |
484 | free(pa); |
493 | free(pa); |
485 | return rc; |
494 | return rc; |
486 | } |
495 | } |
487 | 496 | ||
488 | int unlink(const char *path) |
497 | int unlink(const char *path) |
489 | { |
498 | { |
490 | return _unlink(path, L_NONE); |
499 | return _unlink(path, L_NONE); |
491 | } |
500 | } |
492 | 501 | ||
493 | int rmdir(const char *path) |
502 | int rmdir(const char *path) |
494 | { |
503 | { |
495 | return _unlink(path, L_DIRECTORY); |
504 | return _unlink(path, L_DIRECTORY); |
496 | } |
505 | } |
497 | 506 | ||
498 | int rename(const char *old, const char *new) |
507 | int rename(const char *old, const char *new) |
499 | { |
508 | { |
500 | int res; |
509 | int res; |
501 | ipcarg_t rc; |
510 | ipcarg_t rc; |
502 | aid_t req; |
511 | aid_t req; |
503 | 512 | ||
504 | size_t olda_len; |
513 | size_t olda_len; |
505 | char *olda = absolutize(old, &olda_len); |
514 | char *olda = absolutize(old, &olda_len); |
506 | if (!olda) |
515 | if (!olda) |
507 | return ENOMEM; |
516 | return ENOMEM; |
508 | 517 | ||
509 | size_t newa_len; |
518 | size_t newa_len; |
510 | char *newa = absolutize(new, &newa_len); |
519 | char *newa = absolutize(new, &newa_len); |
511 | if (!newa) { |
520 | if (!newa) { |
512 | free(olda); |
521 | free(olda); |
513 | return ENOMEM; |
522 | return ENOMEM; |
514 | } |
523 | } |
515 | 524 | ||
516 | futex_down(&vfs_phone_futex); |
525 | futex_down(&vfs_phone_futex); |
517 | async_serialize_start(); |
526 | async_serialize_start(); |
518 | if (vfs_phone < 0) { |
527 | if (vfs_phone < 0) { |
519 | res = vfs_connect(); |
528 | res = vfs_connect(); |
520 | if (res < 0) { |
529 | if (res < 0) { |
521 | async_serialize_end(); |
530 | async_serialize_end(); |
522 | futex_up(&vfs_phone_futex); |
531 | futex_up(&vfs_phone_futex); |
523 | free(olda); |
532 | free(olda); |
524 | free(newa); |
533 | free(newa); |
525 | return res; |
534 | return res; |
526 | } |
535 | } |
527 | } |
536 | } |
528 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
537 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
529 | rc = ipc_data_write_start(vfs_phone, olda, olda_len); |
538 | rc = ipc_data_write_start(vfs_phone, olda, olda_len); |
530 | if (rc != EOK) { |
539 | if (rc != EOK) { |
531 | async_wait_for(req, NULL); |
540 | async_wait_for(req, NULL); |
532 | async_serialize_end(); |
541 | async_serialize_end(); |
533 | futex_up(&vfs_phone_futex); |
542 | futex_up(&vfs_phone_futex); |
534 | free(olda); |
543 | free(olda); |
535 | free(newa); |
544 | free(newa); |
536 | return (int) rc; |
545 | return (int) rc; |
537 | } |
546 | } |
538 | rc = ipc_data_write_start(vfs_phone, newa, newa_len); |
547 | rc = ipc_data_write_start(vfs_phone, newa, newa_len); |
539 | if (rc != EOK) { |
548 | if (rc != EOK) { |
540 | async_wait_for(req, NULL); |
549 | async_wait_for(req, NULL); |
541 | async_serialize_end(); |
550 | async_serialize_end(); |
542 | futex_up(&vfs_phone_futex); |
551 | futex_up(&vfs_phone_futex); |
543 | free(olda); |
552 | free(olda); |
544 | free(newa); |
553 | free(newa); |
545 | return (int) rc; |
554 | return (int) rc; |
546 | } |
555 | } |
547 | async_wait_for(req, &rc); |
556 | async_wait_for(req, &rc); |
548 | async_serialize_end(); |
557 | async_serialize_end(); |
549 | futex_up(&vfs_phone_futex); |
558 | futex_up(&vfs_phone_futex); |
550 | free(olda); |
559 | free(olda); |
551 | free(newa); |
560 | free(newa); |
552 | return rc; |
561 | return rc; |
553 | } |
562 | } |
554 | 563 | ||
555 | int chdir(const char *path) |
564 | int chdir(const char *path) |
556 | { |
565 | { |
557 | size_t pa_len; |
566 | size_t pa_len; |
558 | char *pa = absolutize(path, &pa_len); |
567 | char *pa = absolutize(path, &pa_len); |
559 | if (!pa) |
568 | if (!pa) |
560 | return ENOMEM; |
569 | return ENOMEM; |
561 | 570 | ||
562 | DIR *d = opendir(pa); |
571 | DIR *d = opendir(pa); |
563 | if (!d) { |
572 | if (!d) { |
564 | free(pa); |
573 | free(pa); |
565 | return ENOENT; |
574 | return ENOENT; |
566 | } |
575 | } |
567 | 576 | ||
568 | futex_down(&cwd_futex); |
577 | futex_down(&cwd_futex); |
569 | if (cwd_dir) { |
578 | if (cwd_dir) { |
570 | closedir(cwd_dir); |
579 | closedir(cwd_dir); |
571 | cwd_dir = NULL; |
580 | cwd_dir = NULL; |
572 | free(cwd_path); |
581 | free(cwd_path); |
573 | cwd_path = NULL; |
582 | cwd_path = NULL; |
574 | cwd_len = 0; |
583 | cwd_len = 0; |
575 | } |
584 | } |
576 | cwd_dir = d; |
585 | cwd_dir = d; |
577 | cwd_path = pa; |
586 | cwd_path = pa; |
578 | cwd_len = pa_len; |
587 | cwd_len = pa_len; |
579 | futex_up(&cwd_futex); |
588 | futex_up(&cwd_futex); |
580 | } |
589 | } |
581 | 590 | ||
582 | char *getcwd(char *buf, size_t size) |
591 | char *getcwd(char *buf, size_t size) |
583 | { |
592 | { |
584 | if (!size) |
593 | if (!size) |
585 | return NULL; |
594 | return NULL; |
586 | futex_down(&cwd_futex); |
595 | futex_down(&cwd_futex); |
587 | if (size < cwd_len + 1) { |
596 | if (size < cwd_len + 1) { |
588 | futex_up(&cwd_futex); |
597 | futex_up(&cwd_futex); |
589 | return NULL; |
598 | return NULL; |
590 | } |
599 | } |
591 | strcpy(buf, cwd_path); |
600 | strcpy(buf, cwd_path); |
592 | futex_up(&cwd_futex); |
601 | futex_up(&cwd_futex); |
593 | return buf; |
602 | return buf; |
594 | } |
603 | } |
595 | 604 | ||
596 | /** @} |
605 | /** @} |
597 | */ |
606 | */ |
598 | 607 |