WebSVN – HelenOS – Diff – /branches/dd/uspace/lib/libc/generic/vfs/vfs.c


/*
 * Copyright (c) 2008 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup libc
 * @{
 */
/** @file
 */
 
#include <vfs.h>
#include <stdlib.h>
#include <unistd.h>
#include <dirent.h>
#include <fcntl.h>
#include <ipc/ipc.h>
#include <ipc/services.h>
#include <async.h>
#include <atomic.h>
#include <futex.h>
#include <errno.h>
#include <string.h>
#include "../../srv/vfs/vfs.h"
 
int vfs_phone = -1;
atomic_t vfs_phone_futex = FUTEX_INITIALIZER;
 
static int vfs_connect(void)
{
    if (vfs_phone < 0)
        vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0);
    return vfs_phone;
}
 
int mount(const char *fs_name, const char *mp, const char *dev)
{
    int res;
    ipcarg_t rc;
    aid_t req;
 
    int dev_handle = 0; /* TODO */
 
    futex_down(&vfs_phone_futex);
    async_serialize_start();
    if (vfs_phone < 0) {
        res = vfs_connect();
        if (res < 0) {
            async_serialize_end();
            futex_up(&vfs_phone_futex);
            return res;
        }
    }
    req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL);
    rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name));
    if (rc != EOK) {
        async_wait_for(req, NULL);
        async_serialize_end();
        futex_up(&vfs_phone_futex);
        return (int) rc;
    }
    rc = ipc_data_write_start(vfs_phone, (void *)mp, strlen(mp));
    if (rc != EOK) {
        async_wait_for(req, NULL);
        async_serialize_end();
        futex_up(&vfs_phone_futex);
        return (int) rc;
    }
    async_wait_for(req, &rc);
    async_serialize_end();
    futex_up(&vfs_phone_futex);
    return (int) rc;
}
 
 
int open(const char *path, int oflag, ...)
{
    int res;
    ipcarg_t rc;
    ipc_call_t answer;
    aid_t req;
   
    futex_down(&vfs_phone_futex);
    async_serialize_start();
    if (vfs_phone < 0) {
        res = vfs_connect();
        if (res < 0) {
            async_serialize_end();
            futex_up(&vfs_phone_futex);
            return res;
        }
    }
    req = async_send_2(vfs_phone, VFS_OPEN, oflag, 0, &answer);
    rc = ipc_data_write_start(vfs_phone, path, strlen(path));
    if (rc != EOK) {
        async_wait_for(req, NULL);
        async_serialize_end();
        futex_up(&vfs_phone_futex);
        return (int) rc;
    }
    async_wait_for(req, &rc);
    async_serialize_end();
    futex_up(&vfs_phone_futex);
    return (int) IPC_GET_ARG1(answer);
}
 
ssize_t read(int fildes, void *buf, size_t nbyte)
{
    int res;
    ipcarg_t rc;
    ipc_call_t answer;
    aid_t req;
 
    futex_down(&vfs_phone_futex);
    async_serialize_start();
    if (vfs_phone < 0) {
        res = vfs_connect();
        if (res < 0) {
            async_serialize_end();
            futex_up(&vfs_phone_futex);
            return res;
        }
    }
    req = async_send_1(vfs_phone, VFS_READ, fildes, &answer);
    if (ipc_data_read_start(vfs_phone, (void *)buf, nbyte) != EOK) {
        async_wait_for(req, NULL);
        async_serialize_end();
        futex_up(&vfs_phone_futex);
        return (ssize_t) rc;
    }
    async_wait_for(req, &rc);
    async_serialize_end();
    futex_up(&vfs_phone_futex);
    return (ssize_t) IPC_GET_ARG1(answer);
}
 
ssize_t write(int fildes, const void *buf, size_t nbyte)
{
    int res;
    ipcarg_t rc;
    ipc_call_t answer;
    aid_t req;
 
    futex_down(&vfs_phone_futex);
    async_serialize_start();
    if (vfs_phone < 0) {
        res = vfs_connect();
        if (res < 0) {
            async_serialize_end();
            futex_up(&vfs_phone_futex);
            return res;
        }
    }
    req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer);
    if (ipc_data_write_start(vfs_phone, (void *)buf, nbyte) != EOK) {
        async_wait_for(req, NULL);
        async_serialize_end();
        futex_up(&vfs_phone_futex);
        return (ssize_t) rc;
    }
    async_wait_for(req, &rc);
    async_serialize_end();
    futex_up(&vfs_phone_futex);
    return (ssize_t) IPC_GET_ARG1(answer);
}
 
off_t lseek(int fildes, off_t offset, int whence)
{
    int res;
    ipcarg_t rc;
 
    futex_down(&vfs_phone_futex);
    async_serialize_start();
    if (vfs_phone < 0) {
        res = vfs_connect();
        if (res < 0) {
            async_serialize_end();
            futex_up(&vfs_phone_futex);
            return res;
        }
    }
       
    off_t newoffs;
    rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence,
        &newoffs);
 
    async_serialize_end();
    futex_up(&vfs_phone_futex);
 
    if (rc != EOK)
        return (off_t) -1;
   
    return newoffs;
}
 
int ftruncate(int fildes, off_t length)
{
    int res;
    ipcarg_t rc;
   
    futex_down(&vfs_phone_futex);
    async_serialize_start();
    if (vfs_phone < 0) {
        res = vfs_connect();
        if (res < 0) {
            async_serialize_end();
            futex_up(&vfs_phone_futex);
            return res;
        }
    }
    rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length);
    async_serialize_end();
    futex_up(&vfs_phone_futex);
    return (int) rc;
}
 
DIR *opendir(const char *dirname)
{
    DIR *dirp = malloc(sizeof(DIR));
    if (!dirp)
        return NULL;
    dirp->fd = open(dirname, 0);    /* TODO: must be a directory */
    if (!dirp->fd) {
        free(dirp);
        return NULL;
    }
    dirp->pos = 0;
    return dirp;
}
 
struct dirent *readdir(DIR *dirp)
{
    return NULL;    /* TODO */ 
}
 
void rewinddir(DIR *dirp)
{
    dirp->pos = 0;
}
 
int closedir(DIR *dirp)
{
    (void) close(dirp->fd);
    free(dirp);
    return 0;
}
 
int close(int fildes)
{
    return 0;   /* TODO */
}
 
/** @}
 */
 

Rev 2693	Rev 2694
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.h>	35	#include <vfs.h>
-		36	#include <stdlib.h>
36	#include <unistd.h>	37	#include <unistd.h>
-		38	#include <dirent.h>
37	#include <fcntl.h>	39	#include <fcntl.h>
38	#include <ipc/ipc.h>	40	#include <ipc/ipc.h>
39	#include <ipc/services.h>	41	#include <ipc/services.h>
40	#include <async.h>	42	#include <async.h>
41	#include <atomic.h>	43	#include <atomic.h>
42	#include <futex.h>	44	#include <futex.h>
43	#include <errno.h>	45	#include <errno.h>
44	#include <string.h>	46	#include <string.h>
45	#include "../../srv/vfs/vfs.h"	47	#include "../../srv/vfs/vfs.h"
46		48
47	int vfs_phone = -1;	49	int vfs_phone = -1;
48	atomic_t vfs_phone_futex = FUTEX_INITIALIZER;	50	atomic_t vfs_phone_futex = FUTEX_INITIALIZER;
49		51
50	static int vfs_connect(void)	52	static int vfs_connect(void)
51	{	53	{
52	if (vfs_phone < 0)	54	if (vfs_phone < 0)
53	vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0);	55	vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0);
54	return vfs_phone;	56	return vfs_phone;
55	}	57	}
56		58
57	int mount(const char fs_name, const char mp, const char *dev)	59	int mount(const char fs_name, const char mp, const char *dev)
58	{	60	{
59	int res;	61	int res;
60	ipcarg_t rc;	62	ipcarg_t rc;
61	aid_t req;	63	aid_t req;
62		64
63	int dev_handle = 0; /* TODO */	65	int dev_handle = 0; /* TODO */
64		66
65	futex_down(&vfs_phone_futex);	67	futex_down(&vfs_phone_futex);
66	async_serialize_start();	68	async_serialize_start();
67	if (vfs_phone < 0) {	69	if (vfs_phone < 0) {
68	res = vfs_connect();	70	res = vfs_connect();
69	if (res < 0) {	71	if (res < 0) {
70	async_serialize_end();	72	async_serialize_end();
71	futex_up(&vfs_phone_futex);	73	futex_up(&vfs_phone_futex);
72	return res;	74	return res;
73	}	75	}
74	}	76	}
75	req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL);	77	req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL);
76	rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name));	78	rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name));
77	if (rc != EOK) {	79	if (rc != EOK) {
78	async_wait_for(req, NULL);	80	async_wait_for(req, NULL);
79	async_serialize_end();	81	async_serialize_end();
80	futex_up(&vfs_phone_futex);	82	futex_up(&vfs_phone_futex);
81	return (int) rc;	83	return (int) rc;
82	}	84	}
83	rc = ipc_data_write_start(vfs_phone, (void *)mp, strlen(mp));	85	rc = ipc_data_write_start(vfs_phone, (void *)mp, strlen(mp));
84	if (rc != EOK) {	86	if (rc != EOK) {
85	async_wait_for(req, NULL);	87	async_wait_for(req, NULL);
86	async_serialize_end();	88	async_serialize_end();
87	futex_up(&vfs_phone_futex);	89	futex_up(&vfs_phone_futex);
88	return (int) rc;	90	return (int) rc;
89	}	91	}
90	async_wait_for(req, &rc);	92	async_wait_for(req, &rc);
91	async_serialize_end();	93	async_serialize_end();
92	futex_up(&vfs_phone_futex);	94	futex_up(&vfs_phone_futex);
93	return (int) rc;	95	return (int) rc;
94	}	96	}
95		97
96		98
97	int open(const char *path, int oflag, ...)	99	int open(const char *path, int oflag, ...)
98	{	100	{
99	int res;	101	int res;
100	ipcarg_t rc;	102	ipcarg_t rc;
101	ipc_call_t answer;	103	ipc_call_t answer;
102	aid_t req;	104	aid_t req;
103		105
104	futex_down(&vfs_phone_futex);	106	futex_down(&vfs_phone_futex);
105	async_serialize_start();	107	async_serialize_start();
106	if (vfs_phone < 0) {	108	if (vfs_phone < 0) {
107	res = vfs_connect();	109	res = vfs_connect();
108	if (res < 0) {	110	if (res < 0) {
109	async_serialize_end();	111	async_serialize_end();
110	futex_up(&vfs_phone_futex);	112	futex_up(&vfs_phone_futex);
111	return res;	113	return res;
112	}	114	}
113	}	115	}
114	req = async_send_2(vfs_phone, VFS_OPEN, oflag, 0, &answer);	116	req = async_send_2(vfs_phone, VFS_OPEN, oflag, 0, &answer);
115	rc = ipc_data_write_start(vfs_phone, path, strlen(path));	117	rc = ipc_data_write_start(vfs_phone, path, strlen(path));
116	if (rc != EOK) {	118	if (rc != EOK) {
117	async_wait_for(req, NULL);	119	async_wait_for(req, NULL);
118	async_serialize_end();	120	async_serialize_end();
119	futex_up(&vfs_phone_futex);	121	futex_up(&vfs_phone_futex);
120	return (int) rc;	122	return (int) rc;
121	}	123	}
122	async_wait_for(req, &rc);	124	async_wait_for(req, &rc);
123	async_serialize_end();	125	async_serialize_end();
124	futex_up(&vfs_phone_futex);	126	futex_up(&vfs_phone_futex);
125	return (int) IPC_GET_ARG1(answer);	127	return (int) IPC_GET_ARG1(answer);
126	}	128	}
127		129
128	ssize_t read(int fildes, void *buf, size_t nbyte)	130	ssize_t read(int fildes, void *buf, size_t nbyte)
129	{	131	{
130	int res;	132	int res;
131	ipcarg_t rc;	133	ipcarg_t rc;
132	ipc_call_t answer;	134	ipc_call_t answer;
133	aid_t req;	135	aid_t req;
134		136
135	futex_down(&vfs_phone_futex);	137	futex_down(&vfs_phone_futex);
136	async_serialize_start();	138	async_serialize_start();
137	if (vfs_phone < 0) {	139	if (vfs_phone < 0) {
138	res = vfs_connect();	140	res = vfs_connect();
139	if (res < 0) {	141	if (res < 0) {
140	async_serialize_end();	142	async_serialize_end();
141	futex_up(&vfs_phone_futex);	143	futex_up(&vfs_phone_futex);
142	return res;	144	return res;
143	}	145	}
144	}	146	}
145	req = async_send_1(vfs_phone, VFS_READ, fildes, &answer);	147	req = async_send_1(vfs_phone, VFS_READ, fildes, &answer);
146	if (ipc_data_read_start(vfs_phone, (void *)buf, nbyte) != EOK) {	148	if (ipc_data_read_start(vfs_phone, (void *)buf, nbyte) != EOK) {
147	async_wait_for(req, NULL);	149	async_wait_for(req, NULL);
148	async_serialize_end();	150	async_serialize_end();
149	futex_up(&vfs_phone_futex);	151	futex_up(&vfs_phone_futex);
150	return (ssize_t) rc;	152	return (ssize_t) rc;
151	}	153	}
152	async_wait_for(req, &rc);	154	async_wait_for(req, &rc);
153	async_serialize_end();	155	async_serialize_end();
154	futex_up(&vfs_phone_futex);	156	futex_up(&vfs_phone_futex);
155	return (ssize_t) IPC_GET_ARG1(answer);	157	return (ssize_t) IPC_GET_ARG1(answer);
156	}	158	}
157		159
158	ssize_t write(int fildes, const void *buf, size_t nbyte)	160	ssize_t write(int fildes, const void *buf, size_t nbyte)
159	{	161	{
160	int res;	162	int res;
161	ipcarg_t rc;	163	ipcarg_t rc;
162	ipc_call_t answer;	164	ipc_call_t answer;
163	aid_t req;	165	aid_t req;
164		166
165	futex_down(&vfs_phone_futex);	167	futex_down(&vfs_phone_futex);
166	async_serialize_start();	168	async_serialize_start();
167	if (vfs_phone < 0) {	169	if (vfs_phone < 0) {
168	res = vfs_connect();	170	res = vfs_connect();
169	if (res < 0) {	171	if (res < 0) {
170	async_serialize_end();	172	async_serialize_end();
171	futex_up(&vfs_phone_futex);	173	futex_up(&vfs_phone_futex);
172	return res;	174	return res;
173	}	175	}
174	}	176	}
175	req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer);	177	req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer);
176	if (ipc_data_write_start(vfs_phone, (void *)buf, nbyte) != EOK) {	178	if (ipc_data_write_start(vfs_phone, (void *)buf, nbyte) != EOK) {
177	async_wait_for(req, NULL);	179	async_wait_for(req, NULL);
178	async_serialize_end();	180	async_serialize_end();
179	futex_up(&vfs_phone_futex);	181	futex_up(&vfs_phone_futex);
180	return (ssize_t) rc;	182	return (ssize_t) rc;
181	}	183	}
182	async_wait_for(req, &rc);	184	async_wait_for(req, &rc);
183	async_serialize_end();	185	async_serialize_end();
184	futex_up(&vfs_phone_futex);	186	futex_up(&vfs_phone_futex);
185	return (ssize_t) IPC_GET_ARG1(answer);	187	return (ssize_t) IPC_GET_ARG1(answer);
186	}	188	}
187		189
188	off_t lseek(int fildes, off_t offset, int whence)	190	off_t lseek(int fildes, off_t offset, int whence)
189	{	191	{
190	int res;	192	int res;
191	ipcarg_t rc;	193	ipcarg_t rc;
192		194
193	futex_down(&vfs_phone_futex);	195	futex_down(&vfs_phone_futex);
194	async_serialize_start();	196	async_serialize_start();
195	if (vfs_phone < 0) {	197	if (vfs_phone < 0) {
196	res = vfs_connect();	198	res = vfs_connect();
197	if (res < 0) {	199	if (res < 0) {
198	async_serialize_end();	200	async_serialize_end();
199	futex_up(&vfs_phone_futex);	201	futex_up(&vfs_phone_futex);
200	return res;	202	return res;
201	}	203	}
202	}	204	}
203		205
204	off_t newoffs;	206	off_t newoffs;
205	rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence,	207	rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence,
206	&newoffs);	208	&newoffs);
207		209
208	async_serialize_end();	210	async_serialize_end();
209	futex_up(&vfs_phone_futex);	211	futex_up(&vfs_phone_futex);
210		212
211	if (rc != EOK)	213	if (rc != EOK)
212	return (off_t) -1;	214	return (off_t) -1;
213		215
214	return newoffs;	216	return newoffs;
215	}	217	}
216		218
217	int ftruncate(int fildes, off_t length)	219	int ftruncate(int fildes, off_t length)
218	{	220	{
219	int res;	221	int res;
220	ipcarg_t rc;	222	ipcarg_t rc;
221		223
222	futex_down(&vfs_phone_futex);	224	futex_down(&vfs_phone_futex);
223	async_serialize_start();	225	async_serialize_start();
224	if (vfs_phone < 0) {	226	if (vfs_phone < 0) {
225	res = vfs_connect();	227	res = vfs_connect();
226	if (res < 0) {	228	if (res < 0) {
227	async_serialize_end();	229	async_serialize_end();
228	futex_up(&vfs_phone_futex);	230	futex_up(&vfs_phone_futex);
229	return res;	231	return res;
230	}	232	}
231	}	233	}
232	rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length);	234	rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length);
233	async_serialize_end();	235	async_serialize_end();
234	futex_up(&vfs_phone_futex);	236	futex_up(&vfs_phone_futex);
235	return (int) rc;	237	return (int) rc;
236	}	238	}
-		239
-		240	DIR opendir(const char dirname)
-		241	{
-		242	DIR *dirp = malloc(sizeof(DIR));
-		243	if (!dirp)
-		244	return NULL;
-		245	dirp->fd = open(dirname, 0); /* TODO: must be a directory */
-		246	if (!dirp->fd) {
-		247	free(dirp);
-		248	return NULL;
-		249	}
-		250	dirp->pos = 0;
-		251	return dirp;
-		252	}
-		253
-		254	struct dirent readdir(DIR dirp)
-		255	{
-		256	return NULL; /* TODO */
-		257	}
-		258
-		259	void rewinddir(DIR *dirp)
-		260	{
-		261	dirp->pos = 0;
-		262	}
-		263
-		264	int closedir(DIR *dirp)
-		265	{
-		266	(void) close(dirp->fd);
-		267	free(dirp);
-		268	return 0;
-		269	}
-		270
-		271	int close(int fildes)
-		272	{
-		273	return 0; /* TODO */
-		274	}
237		275
238	/** @}	276	/** @}
239	*/	277	*/
240		278

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(root)/branches/dd/uspace/lib/libc/generic/vfs/vfs.c @ 4688 – Rev 2693 → 2694