1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
18 ***/
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23
24 #include <unistd.h>
25 #include <errno.h>
26
27 #include <pulsecore/core-error.h>
28 #include <pulsecore/module.h>
29 #include <pulsecore/modargs.h>
30 #include <pulsecore/core-util.h>
31 #include <pulsecore/log.h>
32
33 PA_MODULE_AUTHOR("Lennart Poettering");
34 PA_MODULE_DESCRIPTION("ESOUND compatibility module: -spawnfd emulation");
35 PA_MODULE_LOAD_ONCE(true);
36 PA_MODULE_VERSION(PACKAGE_VERSION);
37 PA_MODULE_USAGE("fd=<file descriptor>");
38
39 static const char* const valid_modargs[] = {
40 "fd",
41 NULL,
42 };
43
pa__init(pa_module * m)44 int pa__init(pa_module*m) {
45 pa_modargs *ma = NULL;
46 int ret = -1;
47 int32_t fd = -1;
48 char x = 1;
49
50 pa_assert(m);
51
52 if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
53 pa_modargs_get_value_s32(ma, "fd", &fd) < 0 ||
54 fd < 0) {
55
56 pa_log("Failed to parse module arguments");
57 goto finish;
58 }
59
60 if (pa_loop_write(fd, &x, sizeof(x), NULL) != sizeof(x))
61 pa_log_warn("write(%u, 1, 1) failed: %s", fd, pa_cstrerror(errno));
62
63 pa_assert_se(pa_close(fd) == 0);
64
65 pa_module_unload_request(m, true);
66
67 ret = 0;
68
69 finish:
70 if (ma)
71 pa_modargs_free(ma);
72
73 return ret;
74 }
75