1
2/***
3  This file is part of PulseAudio.
4
5  Copyright 2004-2006 Lennart Poettering
6
7  PulseAudio is free software; you can redistribute it and/or modify
8  it under the terms of the GNU Lesser General Public License as published
9  by the Free Software Foundation; either version 2.1 of the License,
10  or (at your option) any later version.
11
12  PulseAudio is distributed in the hope that it will be useful, but
13  WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  General Public License for more details.
16
17  You should have received a copy of the GNU Lesser General Public License
18  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
19***/
20
21#ifdef HAVE_CONFIG_H
22#include <config.h>
23#endif
24
25#include <unistd.h>
26#include <errno.h>
27#include <signal.h>
28
29#include <pulsecore/core-error.h>
30#include <pulsecore/module.h>
31#include <pulsecore/modargs.h>
32#include <pulsecore/log.h>
33
34PA_MODULE_AUTHOR("Lennart Poettering");
35PA_MODULE_DESCRIPTION("ESOUND compatibility module: -spawnpid emulation");
36PA_MODULE_VERSION(PACKAGE_VERSION);
37PA_MODULE_LOAD_ONCE(true);
38PA_MODULE_USAGE("pid=<process id>");
39
40static const char* const valid_modargs[] = {
41    "pid",
42    NULL,
43};
44
45int pa__init(pa_module*m) {
46    pa_modargs *ma = NULL;
47    int ret = -1;
48    uint32_t pid = 0;
49
50    pa_assert(m);
51
52    if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
53        pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
54        !pid) {
55        pa_log("Failed to parse module arguments");
56        goto finish;
57    }
58
59    if (kill((pid_t) pid, SIGUSR1) < 0)
60        pa_log_warn("kill(%u) failed: %s", pid, pa_cstrerror(errno));
61
62    pa_module_unload_request(m, true);
63
64    ret = 0;
65
66finish:
67    if (ma)
68        pa_modargs_free(ma);
69
70    return ret;
71}
72