2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
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.
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.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
26 #include <sys/types.h>
40 #include <sys/prctl.h>
43 #include <pulse/pulseaudio.h>
45 #include <pulsecore/i18n.h>
46 #include <pulsecore/macro.h>
48 static pa_context *context = NULL;
49 static pa_mainloop_api *mainloop_api = NULL;
50 static char **child_argv = NULL;
51 static int child_argc = 0;
52 static pid_t child_pid = (pid_t) -1;
53 static int child_ret = 0;
56 static void quit(int ret) {
57 pa_assert(mainloop_api);
58 mainloop_api->quit(mainloop_api, ret);
62 static void context_drain_complete(pa_context *c, void *userdata) {
63 pa_context_disconnect(c);
66 static void drain(void) {
69 if (!(o = pa_context_drain(context, context_drain_complete, NULL)))
70 pa_context_disconnect(context);
72 pa_operation_unref(o);
75 static void start_child(void) {
77 if ((child_pid = fork()) < 0) {
79 fprintf(stderr, _("fork(): %s\n"), strerror(errno));
82 } else if (child_pid == 0) {
86 prctl(PR_SET_PDEATHSIG, SIGTERM, 0, 0, 0);
89 if (execvp(child_argv[0], child_argv) < 0)
90 fprintf(stderr, _("execvp(): %s\n"), strerror(errno));
101 static void suspend_complete(pa_context *c, int success, void *userdata) {
107 fprintf(stderr, _("Failure to suspend: %s\n"), pa_strerror(pa_context_errno(c)));
116 static void resume_complete(pa_context *c, int success, void *userdata) {
122 fprintf(stderr, _("Failure to resume: %s\n"), pa_strerror(pa_context_errno(c)));
128 drain(); /* drain and quit */
131 static void context_state_callback(pa_context *c, void *userdata) {
134 switch (pa_context_get_state(c)) {
135 case PA_CONTEXT_CONNECTING:
136 case PA_CONTEXT_AUTHORIZING:
137 case PA_CONTEXT_SETTING_NAME:
140 case PA_CONTEXT_READY:
141 if (pa_context_is_local(c)) {
142 pa_operation_unref(pa_context_suspend_sink_by_index(c, PA_INVALID_INDEX, 1, suspend_complete, NULL));
143 pa_operation_unref(pa_context_suspend_source_by_index(c, PA_INVALID_INDEX, 1, suspend_complete, NULL));
145 fprintf(stderr, _("WARNING: Sound server is not local, not suspending.\n"));
151 case PA_CONTEXT_TERMINATED:
155 case PA_CONTEXT_FAILED:
157 fprintf(stderr, _("Connection failure: %s\n"), pa_strerror(pa_context_errno(c)));
159 pa_context_unref(context);
162 if (child_pid == (pid_t) -1)
163 /* not started yet, then we do it now */
166 /* already started, and dead, so let's quit */
173 static void sigint_callback(pa_mainloop_api *m, pa_signal_event *e, int sig, void *userdata) {
174 fprintf(stderr, _("Got SIGINT, exiting.\n"));
178 static void sigchld_callback(pa_mainloop_api *m, pa_signal_event *e, int sig, void *userdata) {
182 p = waitpid(-1, &status, WNOHANG);
189 if (WIFEXITED(status))
190 child_ret = WEXITSTATUS(status);
191 else if (WIFSIGNALED(status)) {
192 fprintf(stderr, _("WARNING: Child process terminated by signal %u\n"), WTERMSIG(status));
197 if (pa_context_is_local(context)) {
198 /* A context is around, so let's resume */
199 pa_operation_unref(pa_context_suspend_sink_by_index(context, PA_INVALID_INDEX, 0, resume_complete, NULL));
200 pa_operation_unref(pa_context_suspend_source_by_index(context, PA_INVALID_INDEX, 0, resume_complete, NULL));
204 /* Hmm, no context here, so let's terminate right away */
208 static void help(const char *argv0) {
210 printf(_("%s [options] ... \n\n"
211 " -h, --help Show this help\n"
212 " --version Show version\n"
213 " -s, --server=SERVER The name of the server to connect to\n\n"),
221 int main(int argc, char *argv[]) {
222 pa_mainloop* m = NULL;
224 char *server = NULL, *bn;
226 static const struct option long_options[] = {
227 {"server", 1, NULL, 's'},
228 {"version", 0, NULL, ARG_VERSION},
229 {"help", 0, NULL, 'h'},
233 setlocale(LC_ALL, "");
235 bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR);
238 bn = pa_path_get_filename(argv[0]);
240 while ((c = getopt_long(argc, argv, "s:h", long_options, NULL)) != -1) {
248 printf(_("pasuspender %s\n"
249 "Compiled with libpulse %s\n"
250 "Linked with libpulse %s\n"),
252 pa_get_headers_version(),
253 pa_get_library_version());
259 server = pa_xstrdup(optarg);
267 child_argv = argv + optind;
268 child_argc = argc - optind;
270 if (child_argc <= 0) {
276 if (!(m = pa_mainloop_new())) {
277 fprintf(stderr, _("pa_mainloop_new() failed.\n"));
281 pa_assert_se(mainloop_api = pa_mainloop_get_api(m));
282 pa_assert_se(pa_signal_init(mainloop_api) == 0);
283 pa_signal_new(SIGINT, sigint_callback, NULL);
284 pa_signal_new(SIGCHLD, sigchld_callback, NULL);
286 signal(SIGPIPE, SIG_IGN);
289 if (!(context = pa_context_new(mainloop_api, bn))) {
290 fprintf(stderr, _("pa_context_new() failed.\n"));
294 pa_context_set_state_callback(context, context_state_callback, NULL);
295 pa_context_connect(context, server, PA_CONTEXT_NOAUTOSPAWN, NULL);
297 if (pa_mainloop_run(m, &ret) < 0) {
298 fprintf(stderr, _("pa_mainloop_run() failed.\n"));
304 pa_context_unref(context);
314 kill(child_pid, SIGTERM);
316 return ret == 0 ? child_ret : ret;