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pulseaudio/src/daemon/main.c
Lennart Poettering ecf6439661 catch up with trunk HEAD (i.e. 2118:2213) 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2214 fefdeb5f-60dc-0310-8127-8f9354f1896f
2008-03-31 23:08:01 +00:00

854 lines
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/* $Id$ */
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <stddef.h>
#include <ltdl.h>
#include <limits.h>
#include <fcntl.h>
#include <unistd.h>
#include <locale.h>
#include <sys/types.h>
#include <liboil/liboil.h>
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#ifdef HAVE_LIBWRAP
#include <syslog.h>
#include <tcpd.h>
#endif
#ifdef HAVE_DBUS
#include <dbus/dbus.h>
#endif
#include <pulse/mainloop.h>
#include <pulse/mainloop-signal.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
#include <pulsecore/winsock.h>
#include <pulsecore/core-error.h>
#include <pulsecore/core.h>
#include <pulsecore/memblock.h>
#include <pulsecore/module.h>
#include <pulsecore/cli-command.h>
#include <pulsecore/log.h>
#include <pulsecore/core-util.h>
#include <pulsecore/sioman.h>
#include <pulsecore/cli-text.h>
#include <pulsecore/pid.h>
#include <pulsecore/namereg.h>
#include <pulsecore/random.h>
#include <pulsecore/rtsig.h>
#include <pulsecore/rtclock.h>
#include <pulsecore/macro.h>
#include <pulsecore/mutex.h>
#include <pulsecore/thread.h>
#include <pulsecore/once.h>
#include <pulsecore/shm.h>
#include "cmdline.h"
#include "cpulimit.h"
#include "daemon-conf.h"
#include "dumpmodules.h"
#include "caps.h"
#include "ltdl-bind-now.h"
#include "polkit.h"
#ifdef HAVE_LIBWRAP
/* Only one instance of these variables */
int allow_severity = LOG_INFO;
int deny_severity = LOG_WARNING;
#endif
#ifdef HAVE_OSS
/* padsp looks for this symbol in the running process and disables
* itself if it finds it and it is set to 7 (which is actually a bit
* mask). For details see padsp. */
int __padsp_disabled__ = 7;
#endif
#ifdef OS_IS_WIN32
static void message_cb(pa_mainloop_api*a, pa_time_event*e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
MSG msg;
struct timeval tvnext;
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT)
raise(SIGTERM);
else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
pa_timeval_add(pa_gettimeofday(&tvnext), 100000);
a->time_restart(e, &tvnext);
}
#endif
static void signal_callback(pa_mainloop_api*m, PA_GCC_UNUSED pa_signal_event *e, int sig, void *userdata) {
pa_log_info("Got signal %s.", pa_sig2str(sig));
switch (sig) {
#ifdef SIGUSR1
case SIGUSR1:
pa_module_load(userdata, "module-cli", NULL);
break;
#endif
#ifdef SIGUSR2
case SIGUSR2:
pa_module_load(userdata, "module-cli-protocol-unix", NULL);
break;
#endif
#ifdef SIGHUP
case SIGHUP: {
char *c = pa_full_status_string(userdata);
pa_log_notice("%s", c);
pa_xfree(c);
return;
}
#endif
case SIGINT:
case SIGTERM:
default:
pa_log_info("Exiting.");
m->quit(m, 1);
break;
}
}
#define set_env(key, value) putenv(pa_sprintf_malloc("%s=%s", (key), (value)))
#if defined(HAVE_PWD_H) && defined(HAVE_GRP_H)
static int change_user(void) {
struct passwd *pw;
struct group * gr;
int r;
/* This function is called only in system-wide mode. It creates a
* runtime dir in /var/run/ with proper UID/GID and drops privs
* afterwards. */
if (!(pw = getpwnam(PA_SYSTEM_USER))) {
pa_log("Failed to find user '%s'.", PA_SYSTEM_USER);
return -1;
}
if (!(gr = getgrnam(PA_SYSTEM_GROUP))) {
pa_log("Failed to find group '%s'.", PA_SYSTEM_GROUP);
return -1;
}
pa_log_info("Found user '%s' (UID %lu) and group '%s' (GID %lu).",
PA_SYSTEM_USER, (unsigned long) pw->pw_uid,
PA_SYSTEM_GROUP, (unsigned long) gr->gr_gid);
if (pw->pw_gid != gr->gr_gid) {
pa_log("GID of user '%s' and of group '%s' don't match.", PA_SYSTEM_USER, PA_SYSTEM_GROUP);
return -1;
}
if (strcmp(pw->pw_dir, PA_SYSTEM_RUNTIME_PATH) != 0)
pa_log_warn("Warning: home directory of user '%s' is not '%s', ignoring.", PA_SYSTEM_USER, PA_SYSTEM_RUNTIME_PATH);
if (pa_make_secure_dir(PA_SYSTEM_RUNTIME_PATH, 0755, pw->pw_uid, gr->gr_gid) < 0) {
pa_log("Failed to create '%s': %s", PA_SYSTEM_RUNTIME_PATH, pa_cstrerror(errno));
return -1;
}
if (initgroups(PA_SYSTEM_USER, gr->gr_gid) != 0) {
pa_log("Failed to change group list: %s", pa_cstrerror(errno));
return -1;
}
#if defined(HAVE_SETRESGID)
r = setresgid(gr->gr_gid, gr->gr_gid, gr->gr_gid);
#elif defined(HAVE_SETEGID)
if ((r = setgid(gr->gr_gid)) >= 0)
r = setegid(gr->gr_gid);
#elif defined(HAVE_SETREGID)
r = setregid(gr->gr_gid, gr->gr_gid);
#else
#error "No API to drop priviliges"
#endif
if (r < 0) {
pa_log("Failed to change GID: %s", pa_cstrerror(errno));
return -1;
}
#if defined(HAVE_SETRESUID)
r = setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid);
#elif defined(HAVE_SETEUID)
if ((r = setuid(pw->pw_uid)) >= 0)
r = seteuid(pw->pw_uid);
#elif defined(HAVE_SETREUID)
r = setreuid(pw->pw_uid, pw->pw_uid);
#else
#error "No API to drop priviliges"
#endif
if (r < 0) {
pa_log("Failed to change UID: %s", pa_cstrerror(errno));
return -1;
}
set_env("USER", PA_SYSTEM_USER);
set_env("USERNAME", PA_SYSTEM_USER);
set_env("LOGNAME", PA_SYSTEM_USER);
set_env("HOME", PA_SYSTEM_RUNTIME_PATH);
/* Relevant for pa_runtime_path() */
set_env("PULSE_RUNTIME_PATH", PA_SYSTEM_RUNTIME_PATH);
set_env("PULSE_CONFIG_PATH", PA_SYSTEM_RUNTIME_PATH);
pa_log_info("Successfully dropped root privileges.");
return 0;
}
#else /* HAVE_PWD_H && HAVE_GRP_H */
static int change_user(void) {
pa_log("System wide mode unsupported on this platform.");
return -1;
}
#endif /* HAVE_PWD_H && HAVE_GRP_H */
static int create_runtime_dir(void) {
char fn[PATH_MAX];
pa_runtime_path(NULL, fn, sizeof(fn));
/* This function is called only when the daemon is started in
* per-user mode. We create the runtime directory somewhere in
* /tmp/ with the current UID/GID */
if (pa_make_secure_dir(fn, 0700, (uid_t)-1, (gid_t)-1) < 0) {
pa_log("Failed to create '%s': %s", fn, pa_cstrerror(errno));
return -1;
}
return 0;
}
#ifdef HAVE_SYS_RESOURCE_H
static int set_one_rlimit(const pa_rlimit *r, int resource, const char *name) {
struct rlimit rl;
pa_assert(r);
if (!r->is_set)
return 0;
rl.rlim_cur = rl.rlim_max = r->value;
if (setrlimit(resource, &rl) < 0) {
pa_log_warn("setrlimit(%s, (%u, %u)) failed: %s", name, (unsigned) r->value, (unsigned) r->value, pa_cstrerror(errno));
return -1;
}
return 0;
}
static void set_all_rlimits(const pa_daemon_conf *conf) {
set_one_rlimit(&conf->rlimit_as, RLIMIT_AS, "RLIMIT_AS");
set_one_rlimit(&conf->rlimit_core, RLIMIT_CORE, "RLIMIT_CORE");
set_one_rlimit(&conf->rlimit_data, RLIMIT_DATA, "RLIMIT_DATA");
set_one_rlimit(&conf->rlimit_fsize, RLIMIT_FSIZE, "RLIMIT_FSIZE");
set_one_rlimit(&conf->rlimit_nofile, RLIMIT_NOFILE, "RLIMIT_NOFILE");
set_one_rlimit(&conf->rlimit_stack, RLIMIT_STACK, "RLIMIT_STACK");
#ifdef RLIMIT_NPROC
set_one_rlimit(&conf->rlimit_nproc, RLIMIT_NPROC, "RLIMIT_NPROC");
#endif
#ifdef RLIMIT_MEMLOCK
set_one_rlimit(&conf->rlimit_memlock, RLIMIT_MEMLOCK, "RLIMIT_MEMLOCK");
#endif
#ifdef RLIMIT_NICE
set_one_rlimit(&conf->rlimit_nice, RLIMIT_NICE, "RLIMIT_NICE");
#endif
#ifdef RLIMIT_RTPRIO
set_one_rlimit(&conf->rlimit_rtprio, RLIMIT_RTPRIO, "RLIMIT_RTPRIO");
#endif
}
#endif
int main(int argc, char *argv[]) {
pa_core *c = NULL;
pa_strbuf *buf = NULL;
pa_daemon_conf *conf = NULL;
pa_mainloop *mainloop = NULL;
char *s;
int r = 0, retval = 1, d = 0;
int daemon_pipe[2] = { -1, -1 };
pa_bool_t suid_root, real_root;
int valid_pid_file = 0;
gid_t gid = (gid_t) -1;
pa_bool_t allow_realtime, allow_high_priority;
pa_bool_t ltdl_init = FALSE;
#ifdef OS_IS_WIN32
pa_time_event *timer;
struct timeval tv;
#endif
#if defined(__linux__) && defined(__OPTIMIZE__)
/*
Disable lazy relocations to make usage of external libraries
more deterministic for our RT threads. We abuse __OPTIMIZE__ as
a check whether we are a debug build or not.
*/
if (!getenv("LD_BIND_NOW")) {
char *rp;
/* We have to execute ourselves, because the libc caches the
* value of $LD_BIND_NOW on initialization. */
putenv(pa_xstrdup("LD_BIND_NOW=1"));
pa_assert_se(rp = pa_readlink("/proc/self/exe"));
pa_assert_se(execv(rp, argv) == 0);
}
#endif
#ifdef HAVE_GETUID
real_root = getuid() == 0;
suid_root = !real_root && geteuid() == 0;
#else
real_root = FALSE;
suid_root = FALSE;
#endif
if (suid_root) {
/* Drop all capabilities except CAP_SYS_NICE */
pa_limit_caps();
/* Drop priviliges, but keep CAP_SYS_NICE */
pa_drop_root();
/* After dropping root, the effective set is reset, hence,
* let's raise it again */
pa_limit_caps();
/* When capabilities are not supported we will not be able to
* aquire RT sched anymore. But yes, that's the way it is. It
* is just too risky tun let PA run as root all the time. */
}
/* At this point, we are a normal user, possibly with CAP_NICE if
* we were started SUID. If we are started as normal root, than we
* still are normal root. */
setlocale(LC_ALL, "");
pa_log_set_maximal_level(PA_LOG_INFO);
pa_log_set_ident("pulseaudio");
conf = pa_daemon_conf_new();
if (pa_daemon_conf_load(conf, NULL) < 0)
goto finish;
if (pa_daemon_conf_env(conf) < 0)
goto finish;
if (pa_cmdline_parse(conf, argc, argv, &d) < 0) {
pa_log("Failed to parse command line.");
goto finish;
}
pa_log_set_maximal_level(conf->log_level);
pa_log_set_target(conf->auto_log_target ? PA_LOG_STDERR : conf->log_target, NULL);
if (suid_root) {
/* Ok, we're suid root, so let's better not enable high prio
* or RT by default */
allow_high_priority = allow_realtime = FALSE;
#ifdef HAVE_POLKIT
if (conf->high_priority) {
if (pa_polkit_check("org.pulseaudio.acquire-high-priority") > 0) {
pa_log_info("PolicyKit grants us acquire-high-priority privilige.");
allow_high_priority = TRUE;
} else
pa_log_info("PolicyKit refuses acquire-high-priority privilige.");
}
if (conf->realtime_scheduling) {
if (pa_polkit_check("org.pulseaudio.acquire-real-time") > 0) {
pa_log_info("PolicyKit grants us acquire-real-time privilige.");
allow_realtime = TRUE;
} else
pa_log_info("PolicyKit refuses acquire-real-time privilige.");
}
#endif
if ((conf->high_priority || conf->realtime_scheduling) && pa_own_uid_in_group(PA_REALTIME_GROUP, &gid) > 0) {
pa_log_info("We're in the group '"PA_REALTIME_GROUP"', allowing real-time and high-priority scheduling.");
allow_realtime = conf->realtime_scheduling;
allow_high_priority = conf->high_priority;
}
if (!allow_high_priority && !allow_realtime) {
/* OK, there's no further need to keep CAP_NICE. Hence
* let's give it up early */
pa_drop_caps();
pa_drop_root();
suid_root = real_root = FALSE;
if (conf->high_priority || conf->realtime_scheduling)
pa_log_notice("Called SUID root and real-time/high-priority scheduling was requested in the configuration. However, we lack the necessary priviliges:\n"
"We are not in group '"PA_REALTIME_GROUP"' and PolicyKit refuse to grant us priviliges. Dropping SUID again.\n"
"For enabling real-time scheduling please acquire the appropriate PolicyKit priviliges, or become a member of '"PA_REALTIME_GROUP"', or increase the RLIMIT_NICE/RLIMIT_RTPRIO resource limits for this user.");
}
} else {
/* OK, we're a normal user, so let's allow the user evrything
* he asks for, it's now the kernel's job to enforce limits,
* not ours anymore */
allow_high_priority = allow_realtime = TRUE;
}
if (conf->high_priority && !allow_high_priority) {
pa_log_info("High-priority scheduling enabled in configuration but now allowed by policy. Disabling forcibly.");
conf->high_priority = FALSE;
}
if (conf->realtime_scheduling && !allow_realtime) {
pa_log_info("Real-time scheduling enabled in configuration but now allowed by policy. Disabling forcibly.");
conf->realtime_scheduling = FALSE;
}
if (conf->high_priority && conf->cmd == PA_CMD_DAEMON)
pa_raise_priority(conf->nice_level);
if (suid_root) {
pa_bool_t drop;
drop = conf->cmd != PA_CMD_DAEMON || !conf->realtime_scheduling;
#ifdef RLIMIT_RTPRIO
if (!drop) {
/* At this point we still have CAP_NICE if we were loaded
* SUID root. If possible let's acquire RLIMIT_RTPRIO
* instead and give CAP_NICE up. */
const pa_rlimit rl = { 9, TRUE };
if (set_one_rlimit(&rl, RLIMIT_RTPRIO, "RLIMIT_RTPRIO") >= 0) {
pa_log_info("Successfully increased RLIMIT_RTPRIO, giving up CAP_NICE.");
drop = TRUE;
} else
pa_log_warn("RLIMIT_RTPRIO failed: %s", pa_cstrerror(errno));
}
#endif
if (drop) {
pa_drop_caps();
pa_drop_root();
suid_root = real_root = FALSE;
}
}
LTDL_SET_PRELOADED_SYMBOLS();
pa_ltdl_init();
ltdl_init = TRUE;
if (conf->dl_search_path)
lt_dlsetsearchpath(conf->dl_search_path);
#ifdef OS_IS_WIN32
{
WSADATA data;
WSAStartup(MAKEWORD(2, 0), &data);
}
#endif
pa_random_seed();
switch (conf->cmd) {
case PA_CMD_DUMP_MODULES:
pa_dump_modules(conf, argc-d, argv+d);
retval = 0;
goto finish;
case PA_CMD_DUMP_CONF: {
s = pa_daemon_conf_dump(conf);
fputs(s, stdout);
pa_xfree(s);
retval = 0;
goto finish;
}
case PA_CMD_DUMP_RESAMPLE_METHODS: {
int i;
for (i = 0; i < PA_RESAMPLER_MAX; i++)
if (pa_resample_method_supported(i))
printf("%s\n", pa_resample_method_to_string(i));
goto finish;
}
case PA_CMD_HELP :
pa_cmdline_help(argv[0]);
retval = 0;
goto finish;
case PA_CMD_VERSION :
printf(PACKAGE_NAME" "PACKAGE_VERSION"\n");
retval = 0;
goto finish;
case PA_CMD_CHECK: {
pid_t pid;
if (pa_pid_file_check_running(&pid, "pulseaudio") < 0)
pa_log_info("Daemon not running");
else {
pa_log_info("Daemon running as PID %u", pid);
retval = 0;
}
goto finish;
}
case PA_CMD_KILL:
if (pa_pid_file_kill(SIGINT, NULL, "pulseaudio") < 0)
pa_log("Failed to kill daemon.");
else
retval = 0;
goto finish;
case PA_CMD_CLEANUP_SHM:
if (pa_shm_cleanup() >= 0)
retval = 0;
goto finish;
default:
pa_assert(conf->cmd == PA_CMD_DAEMON);
}
if (real_root && !conf->system_instance)
pa_log_warn("This program is not intended to be run as root (unless --system is specified).");
else if (!real_root && conf->system_instance) {
pa_log("Root priviliges required.");
goto finish;
}
if (conf->daemonize) {
pid_t child;
int tty_fd;
if (pa_stdio_acquire() < 0) {
pa_log("Failed to acquire stdio.");
goto finish;
}
#ifdef HAVE_FORK
if (pipe(daemon_pipe) < 0) {
pa_log("Failed to create pipe.");
goto finish;
}
if ((child = fork()) < 0) {
pa_log("fork() failed: %s", pa_cstrerror(errno));
goto finish;
}
if (child != 0) {
/* Father */
pa_assert_se(pa_close(daemon_pipe[1]) == 0);
daemon_pipe[1] = -1;
if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval), NULL) != sizeof(retval)) {
pa_log("read() failed: %s", pa_cstrerror(errno));
retval = 1;
}
if (retval)
pa_log("daemon startup failed.");
else
pa_log_info("daemon startup successful.");
goto finish;
}
pa_assert_se(pa_close(daemon_pipe[0]) == 0);
daemon_pipe[0] = -1;
#endif
if (conf->auto_log_target)
pa_log_set_target(PA_LOG_SYSLOG, NULL);
#ifdef HAVE_SETSID
setsid();
#endif
#ifdef HAVE_SETPGID
setpgid(0,0);
#endif
#ifndef OS_IS_WIN32
pa_close(0);
pa_close(1);
pa_close(2);
open("/dev/null", O_RDONLY);
open("/dev/null", O_WRONLY);
open("/dev/null", O_WRONLY);
#else
FreeConsole();
#endif
#ifdef SIGTTOU
signal(SIGTTOU, SIG_IGN);
#endif
#ifdef SIGTTIN
signal(SIGTTIN, SIG_IGN);
#endif
#ifdef SIGTSTP
signal(SIGTSTP, SIG_IGN);
#endif
#ifdef TIOCNOTTY
if ((tty_fd = open("/dev/tty", O_RDWR)) >= 0) {
ioctl(tty_fd, TIOCNOTTY, (char*) 0);
pa_assert_se(pa_close(tty_fd) == 0);
}
#endif
}
pa_assert_se(chdir("/") == 0);
umask(0022);
if (conf->system_instance) {
if (change_user() < 0)
goto finish;
} else if (create_runtime_dir() < 0)
goto finish;
if (conf->use_pid_file) {
if (pa_pid_file_create() < 0) {
pa_log("pa_pid_file_create() failed.");
#ifdef HAVE_FORK
if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
#endif
goto finish;
}
valid_pid_file = 1;
}
#ifdef HAVE_SYS_RESOURCE_H
set_all_rlimits(conf);
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN);
#endif
pa_log_info("This is PulseAudio " PACKAGE_VERSION);
pa_log_info("Page size is %lu bytes", (unsigned long) PA_PAGE_SIZE);
if (pa_rtclock_hrtimer())
pa_log_info("Fresh high-resolution timers available! Bon appetit!");
else
pa_log_info("Dude, your kernel stinks! The chef's recommendation today is Linux with high-resolution timers enabled!");
#ifdef SIGRTMIN
/* Valgrind uses SIGRTMAX. To easy debugging we don't use it here */
pa_rtsig_configure(SIGRTMIN, SIGRTMAX-1);
#endif
pa_assert_se(mainloop = pa_mainloop_new());
if (!(c = pa_core_new(pa_mainloop_get_api(mainloop), !conf->disable_shm))) {
pa_log("pa_core_new() failed.");
goto finish;
}
c->is_system_instance = !!conf->system_instance;
c->default_sample_spec = conf->default_sample_spec;
c->default_n_fragments = conf->default_n_fragments;
c->default_fragment_size_msec = conf->default_fragment_size_msec;
c->exit_idle_time = conf->exit_idle_time;
c->module_idle_time = conf->module_idle_time;
c->scache_idle_time = conf->scache_idle_time;
c->resample_method = conf->resample_method;
c->realtime_priority = conf->realtime_priority;
c->realtime_scheduling = !!conf->realtime_scheduling;
c->disable_remixing = !!conf->disable_remixing;
pa_assert_se(pa_signal_init(pa_mainloop_get_api(mainloop)) == 0);
pa_signal_new(SIGINT, signal_callback, c);
pa_signal_new(SIGTERM, signal_callback, c);
#ifdef SIGUSR1
pa_signal_new(SIGUSR1, signal_callback, c);
#endif
#ifdef SIGUSR2
pa_signal_new(SIGUSR2, signal_callback, c);
#endif
#ifdef SIGHUP
pa_signal_new(SIGHUP, signal_callback, c);
#endif
#ifdef OS_IS_WIN32
pa_assert_se(timer = pa_mainloop_get_api(mainloop)->time_new(pa_mainloop_get_api(mainloop), pa_gettimeofday(&tv), message_cb, NULL));
#endif
if (conf->daemonize)
c->running_as_daemon = TRUE;
oil_init();
if (!conf->no_cpu_limit)
pa_assert_se(pa_cpu_limit_init(pa_mainloop_get_api(mainloop)) == 0);
buf = pa_strbuf_new();
if (conf->default_script_file)
r = pa_cli_command_execute_file(c, conf->default_script_file, buf, &conf->fail);
if (r >= 0)
r = pa_cli_command_execute(c, conf->script_commands, buf, &conf->fail);
pa_log_error("%s", s = pa_strbuf_tostring_free(buf));
pa_xfree(s);
/* We completed the initial module loading, so let's disable it
* from now on, if requested */
c->disallow_module_loading = !!conf->disallow_module_loading;
if (r < 0 && conf->fail) {
pa_log("Failed to initialize daemon.");
#ifdef HAVE_FORK
if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
#endif
} else if (!c->modules || pa_idxset_size(c->modules) == 0) {
pa_log("daemon startup without any loaded modules, refusing to work.");
#ifdef HAVE_FORK
if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
#endif
} else {
retval = 0;
if (c->default_sink_name &&
pa_namereg_get(c, c->default_sink_name, PA_NAMEREG_SINK, 1) == NULL) {
pa_log_error("%s : Default sink name (%s) does not exist in name register.", __FILE__, c->default_sink_name);
retval = !!conf->fail;
}
#ifdef HAVE_FORK
if (conf->daemonize)
pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
#endif
if (!retval) {
pa_log_info("Daemon startup complete.");
if (pa_mainloop_run(mainloop, &retval) < 0)
retval = 1;
pa_log_info("Daemon shutdown initiated.");
}
}
#ifdef OS_IS_WIN32
pa_mainloop_get_api(mainloop)->time_free(timer);
#endif
pa_core_unref(c);
if (!conf->no_cpu_limit)
pa_cpu_limit_done();
pa_signal_done();
pa_log_info("Daemon terminated.");
finish:
if (mainloop)
pa_mainloop_free(mainloop);
if (conf)
pa_daemon_conf_free(conf);
if (valid_pid_file)
pa_pid_file_remove();
pa_close_pipe(daemon_pipe);
#ifdef OS_IS_WIN32
WSACleanup();
#endif
if (ltdl_init)
pa_ltdl_done();
#ifdef HAVE_DBUS
dbus_shutdown();
#endif
return retval;
}
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