Annotation of prex/usr/lib/posix/gen/__posix_call.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/message.h>
32:
33: #include <errno.h>
34:
35: /*
36: * Send a message to POSIX server.
37: *
38: * Set errno as status.
39: * If 'restart' is set to true, this function will try to send the
40: * message again even if is is interrupted by a signal.
41: */
42: int
43: __posix_call(object_t obj, void *msg, size_t size, int restart)
44: {
45: int err;
46:
47: if (obj == 0) {
48: errno = ENOSYS;
49: return -1;
50: }
51:
52: do {
53: err = msg_send(obj, msg, size);
54: } while (err == EINTR && restart);
55:
56: if (err) {
57: errno = (err == EINTR) ? EINTR : ENOSYS;
58: return -1;
59: } else if (((struct msg_header *)msg)->status) {
60: errno = ((struct msg_header *)msg)->status;
61: return -1;
62: } else {
63: /* DO NOTHING */
64: }
65: return 0;
66: }
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