Annotation of prex/usr/lib/posix/file/__file.c, Revision 1.1.1.1
1.1 nbrk 1: /*
2: * Copyright (c) 2007, Kohsuke Ohtani
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. Neither the name of the author nor the names of any co-contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: #include <prex/prex.h>
31: #include <prex/posix.h>
32: #include <server/object.h>
33: #include <server/stdmsg.h>
34: #include <server/fs.h>
35:
36: #include <stddef.h>
37:
38: object_t __fs_obj;
39:
40: /*
41: * This is called first when task is started
42: */
43: void
44: __file_init(void)
45: {
46: int err;
47:
48: /*
49: * Look up file system server
50: */
51: err = object_lookup(OBJNAME_FS, &__fs_obj);
52: if (err)
53: __fs_obj = 0;
54: }
55:
56: /*
57: * Clean up
58: */
59: void
60: __file_exit(void)
61: {
62: struct msg m;
63:
64: /* Notify to file system server */
65: if (__fs_obj != 0) {
66: m.hdr.code = FS_EXIT;
67: msg_send(__fs_obj, &m, sizeof(m));
68: }
69: }
70:
71: /*
72: * Notify to file system server.
73: * This routine is used by native task which uses file system.
74: */
75: void
76: fslib_init(void)
77: {
78: struct msg m;
79:
80: if (__fs_obj == 0)
81: __file_init();
82:
83: m.hdr.code = FS_REGISTER;
84: msg_send(__fs_obj, &m, sizeof(m));
85: }
86:
87:
88: /*
89: * Clean up (native task)
90: */
91: void
92: fslib_exit(void)
93: {
94:
95: __file_exit();
96: }
97:
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