mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-10-29 05:40:23 -04:00
03ee5e2b44
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@233 fefdeb5f-60dc-0310-8127-8f9354f1896f
271 lines
7 KiB
C
271 lines
7 KiB
C
/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <signal.h>
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#include <stddef.h>
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#include <assert.h>
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#include <ltdl.h>
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#include <memblock.h>
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#include "core.h"
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#include "mainloop.h"
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#include "module.h"
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#include "mainloop-signal.h"
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#include "cmdline.h"
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#include "cli-command.h"
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#include "util.h"
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#include "sioman.h"
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#include "xmalloc.h"
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#include "cpulimit.h"
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#include "log.h"
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#include "daemon-conf.h"
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#include "dumpmodules.h"
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#include "caps.h"
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static struct pa_mainloop *mainloop;
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static void signal_callback(struct pa_mainloop_api*m, struct pa_signal_event *e, int sig, void *userdata) {
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pa_log(__FILE__": Got signal %s.\n", pa_strsignal(sig));
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switch (sig) {
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case SIGUSR1:
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pa_module_load(userdata, "module-cli", NULL);
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return;
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case SIGUSR2:
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pa_module_load(userdata, "module-cli-protocol-unix", NULL);
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return;
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case SIGINT:
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case SIGTERM:
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default:
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pa_log(__FILE__": Exiting.\n");
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m->quit(m, 1);
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return;
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}
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}
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static void close_pipe(int p[2]) {
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if (p[0] != -1)
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close(p[0]);
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if (p[1] != -1)
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close(p[1]);
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p[0] = p[1] = -1;
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}
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int main(int argc, char *argv[]) {
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struct pa_core *c;
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struct pa_strbuf *buf = NULL;
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struct pa_daemon_conf *conf;
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char *s;
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int r, retval = 1, d = 0;
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int daemon_pipe[2] = { -1, -1 };
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pa_limit_caps();
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r = lt_dlinit();
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assert(r == 0);
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pa_log_set_ident("polypaudio");
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conf = pa_daemon_conf_new();
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if (pa_daemon_conf_load(conf, NULL) < 0)
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goto finish;
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if (pa_daemon_conf_env(conf) < 0)
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goto finish;
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if (pa_cmdline_parse(conf, argc, argv, &d) < 0) {
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pa_log(__FILE__": failed to parse command line.\n");
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goto finish;
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}
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pa_log_set_target(conf->auto_log_target ? PA_LOG_STDERR : conf->log_target, NULL);
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if (conf->high_priority && conf->cmd == PA_CMD_DAEMON)
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pa_raise_priority();
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pa_drop_caps();
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if (conf->dl_search_path)
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lt_dlsetsearchpath(conf->dl_search_path);
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switch (conf->cmd) {
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case PA_CMD_DUMP_MODULES:
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pa_dump_modules(conf, argc-d, argv+d);
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retval = 0;
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goto finish;
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case PA_CMD_DUMP_CONF: {
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char *s = pa_daemon_conf_dump(conf);
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fputs(s, stdout);
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pa_xfree(s);
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retval = 0;
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goto finish;
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}
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case PA_CMD_HELP :
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pa_cmdline_help(argv[0]);
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retval = 0;
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goto finish;
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case PA_CMD_VERSION :
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printf(PACKAGE_NAME" "PACKAGE_VERSION"\n");
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retval = 0;
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goto finish;
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default:
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assert(conf->cmd == PA_CMD_DAEMON);
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}
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if (conf->daemonize) {
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pid_t child;
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if (pa_stdio_acquire() < 0) {
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pa_log(__FILE__": failed to acquire stdio.\n");
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goto finish;
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}
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if (pipe(daemon_pipe) < 0) {
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pa_log(__FILE__": failed to create pipe.\n");
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goto finish;
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}
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if ((child = fork()) < 0) {
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pa_log(__FILE__": fork() failed: %s\n", strerror(errno));
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goto finish;
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}
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if (child != 0) {
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/* Father */
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close(daemon_pipe[1]);
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daemon_pipe[1] = -1;
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if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval)) != sizeof(retval)) {
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pa_log(__FILE__": read() failed: %s\n", strerror(errno));
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retval = 1;
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}
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if (conf->verbose)
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pa_log(__FILE__": daemon startup %s.\n", retval ? "failed" : "succeeded");
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goto finish;
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}
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close(daemon_pipe[0]);
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daemon_pipe[0] = -1;
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if (conf->auto_log_target)
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pa_log_set_target(PA_LOG_SYSLOG, NULL);
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setsid();
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setpgrp();
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close(0);
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close(1);
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}
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pa_log(__FILE__": sizeof(pa_usec_t) = %u\n", sizeof(pa_usec_t));
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mainloop = pa_mainloop_new();
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assert(mainloop);
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r = pa_signal_init(pa_mainloop_get_api(mainloop));
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assert(r == 0);
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pa_signal_new(SIGINT, signal_callback, c);
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pa_signal_new(SIGTERM, signal_callback, c);
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signal(SIGPIPE, SIG_IGN);
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c = pa_core_new(pa_mainloop_get_api(mainloop));
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assert(c);
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pa_signal_new(SIGUSR1, signal_callback, c);
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pa_signal_new(SIGUSR2, signal_callback, c);
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r = pa_cpu_limit_init(pa_mainloop_get_api(mainloop));
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assert(r == 0);
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buf = pa_strbuf_new();
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assert(buf);
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if (conf->default_script_file)
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r = pa_cli_command_execute_file(c, conf->default_script_file, buf, &conf->fail, &conf->verbose);
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if (r >= 0)
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r = pa_cli_command_execute(c, conf->script_commands, buf, &conf->fail, &conf->verbose);
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pa_log(s = pa_strbuf_tostring_free(buf));
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pa_xfree(s);
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if (r < 0 && conf->fail) {
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pa_log(__FILE__": failed to initialize daemon.\n");
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if (conf->daemonize)
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pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
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} else if (!c->modules || pa_idxset_ncontents(c->modules) == 0) {
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pa_log(__FILE__": daemon startup without any loaded modules, refusing to work.\n");
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if (conf->daemonize)
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pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
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} else {
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retval = 0;
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if (conf->daemonize)
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pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
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c->disallow_module_loading = conf->disallow_module_loading;
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c->exit_idle_time = conf->exit_idle_time;
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c->module_idle_time = conf->module_idle_time;
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c->scache_idle_time = conf->scache_idle_time;
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c->resample_method = conf->resample_method;
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pa_log(__FILE__": Daemon startup complete.\n");
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if (pa_mainloop_run(mainloop, &retval) < 0)
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retval = 1;
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pa_log(__FILE__": Daemon shutdown initiated.\n");
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}
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pa_core_free(c);
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pa_cpu_limit_done();
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pa_signal_done();
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pa_mainloop_free(mainloop);
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pa_log(__FILE__": Daemon terminated.\n");
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finish:
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if (conf)
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pa_daemon_conf_free(conf);
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close_pipe(daemon_pipe);
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lt_dlexit();
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return retval;
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}
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