code.delx.au - pulseaudio/blob - src/daemon/main.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <unistd.h>
  30 #include <errno.h>
  31 #include <string.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <signal.h>
  35 #include <stddef.h>
  36 #include <ltdl.h>
  37 #include <limits.h>
  38 #include <fcntl.h>
  39 #include <unistd.h>
  40 #include <locale.h>
  41 #include <sys/types.h>
  42
  43 #include <liboil/liboil.h>
  44
  45 #ifdef HAVE_SYS_IOCTL_H
  46 #include <sys/ioctl.h>
  47 #endif
  48
  49 #ifdef HAVE_PWD_H
  50 #include <pwd.h>
  51 #endif
  52 #ifdef HAVE_GRP_H
  53 #include <grp.h>
  54 #endif
  55
  56 #ifdef HAVE_LIBWRAP
  57 #include <syslog.h>
  58 #include <tcpd.h>
  59 #endif
  60
  61 #ifdef HAVE_DBUS
  62 #include <dbus/dbus.h>
  63 #endif
  64
  65 #include <pulse/mainloop.h>
  66 #include <pulse/mainloop-signal.h>
  67 #include <pulse/timeval.h>
  68 #include <pulse/xmalloc.h>
  69
  70 #include <pulsecore/winsock.h>
  71 #include <pulsecore/core-error.h>
  72 #include <pulsecore/core.h>
  73 #include <pulsecore/memblock.h>
  74 #include <pulsecore/module.h>
  75 #include <pulsecore/cli-command.h>
  76 #include <pulsecore/log.h>
  77 #include <pulsecore/core-util.h>
  78 #include <pulsecore/sioman.h>
  79 #include <pulsecore/cli-text.h>
  80 #include <pulsecore/pid.h>
  81 #include <pulsecore/namereg.h>
  82 #include <pulsecore/random.h>
  83 #include <pulsecore/rtsig.h>
  84 #include <pulsecore/rtclock.h>
  85 #include <pulsecore/macro.h>
  86 #include <pulsecore/mutex.h>
  87 #include <pulsecore/thread.h>
  88 #include <pulsecore/once.h>
  89 #include <pulsecore/shm.h>
  90
  91 #include "cmdline.h"
  92 #include "cpulimit.h"
  93 #include "daemon-conf.h"
  94 #include "dumpmodules.h"
  95 #include "caps.h"
  96 #include "ltdl-bind-now.h"
  97
  98 #ifdef HAVE_LIBWRAP
  99 /* Only one instance of these variables */
 100 int allow_severity = LOG_INFO;
 101 int deny_severity = LOG_WARNING;
 102 #endif
 103
 104 #ifdef HAVE_OSS
 105 /* padsp looks for this symbol in the running process and disables
 106  * itself if it finds it and it is set to 7 (which is actually a bit
 107  * mask). For details see padsp. */
 108 int __padsp_disabled__ = 7;
 109 #endif
 110
 111 #ifdef OS_IS_WIN32
 112
 113 static void message_cb(pa_mainloop_api*a, pa_time_event*e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
 114     MSG msg;
 115     struct timeval tvnext;
 116
 117     while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
 118         if (msg.message == WM_QUIT)
 119             raise(SIGTERM);
 120         else {
 121             TranslateMessage(&msg);
 122             DispatchMessage(&msg);
 123         }
 124     }
 125
 126     pa_timeval_add(pa_gettimeofday(&tvnext), 100000);
 127     a->time_restart(e, &tvnext);
 128 }
 129
 130 #endif
 131
 132 static void signal_callback(pa_mainloop_api*m, PA_GCC_UNUSED pa_signal_event *e, int sig, void *userdata) {
 133     pa_log_info("Got signal %s.", pa_strsignal(sig));
 134
 135     switch (sig) {
 136 #ifdef SIGUSR1
 137         case SIGUSR1:
 138             pa_module_load(userdata, "module-cli", NULL);
 139             break;
 140 #endif
 141
 142 #ifdef SIGUSR2
 143         case SIGUSR2:
 144             pa_module_load(userdata, "module-cli-protocol-unix", NULL);
 145             break;
 146 #endif
 147
 148 #ifdef SIGHUP
 149         case SIGHUP: {
 150             char *c = pa_full_status_string(userdata);
 151             pa_log_notice("%s", c);
 152             pa_xfree(c);
 153             return;
 154         }
 155 #endif
 156
 157         case SIGINT:
 158         case SIGTERM:
 159         default:
 160             pa_log_info("Exiting.");
 161             m->quit(m, 1);
 162             break;
 163     }
 164 }
 165
 166 #define set_env(key, value) putenv(pa_sprintf_malloc("%s=%s", (key), (value)))
 167
 168 #if defined(HAVE_PWD_H) && defined(HAVE_GRP_H)
 169
 170 static int change_user(void) {
 171     struct passwd *pw;
 172     struct group * gr;
 173     int r;
 174
 175     /* This function is called only in system-wide mode. It creates a
 176      * runtime dir in /var/run/ with proper UID/GID and drops privs
 177      * afterwards. */
 178
 179     if (!(pw = getpwnam(PA_SYSTEM_USER))) {
 180         pa_log("Failed to find user '%s'.", PA_SYSTEM_USER);
 181         return -1;
 182     }
 183
 184     if (!(gr = getgrnam(PA_SYSTEM_GROUP))) {
 185         pa_log("Failed to find group '%s'.", PA_SYSTEM_GROUP);
 186         return -1;
 187     }
 188
 189     pa_log_info("Found user '%s' (UID %lu) and group '%s' (GID %lu).",
 190                 PA_SYSTEM_USER, (unsigned long) pw->pw_uid,
 191                 PA_SYSTEM_GROUP, (unsigned long) gr->gr_gid);
 192
 193     if (pw->pw_gid != gr->gr_gid) {
 194         pa_log("GID of user '%s' and of group '%s' don't match.", PA_SYSTEM_USER, PA_SYSTEM_GROUP);
 195         return -1;
 196     }
 197
 198     if (strcmp(pw->pw_dir, PA_SYSTEM_RUNTIME_PATH) != 0)
 199         pa_log_warn("Warning: home directory of user '%s' is not '%s', ignoring.", PA_SYSTEM_USER, PA_SYSTEM_RUNTIME_PATH);
 200
 201     if (pa_make_secure_dir(PA_SYSTEM_RUNTIME_PATH, 0755, pw->pw_uid, gr->gr_gid) < 0) {
 202         pa_log("Failed to create '%s': %s", PA_SYSTEM_RUNTIME_PATH, pa_cstrerror(errno));
 203         return -1;
 204     }
 205
 206     if (initgroups(PA_SYSTEM_USER, gr->gr_gid) != 0) {
 207         pa_log("Failed to change group list: %s", pa_cstrerror(errno));
 208         return -1;
 209     }
 210
 211 #if defined(HAVE_SETRESGID)
 212     r = setresgid(gr->gr_gid, gr->gr_gid, gr->gr_gid);
 213 #elif defined(HAVE_SETEGID)
 214     if ((r = setgid(gr->gr_gid)) >= 0)
 215         r = setegid(gr->gr_gid);
 216 #elif defined(HAVE_SETREGID)
 217     r = setregid(gr->gr_gid, gr->gr_gid);
 218 #else
 219 #error "No API to drop priviliges"
 220 #endif
 221
 222     if (r < 0) {
 223         pa_log("Failed to change GID: %s", pa_cstrerror(errno));
 224         return -1;
 225     }
 226
 227 #if defined(HAVE_SETRESUID)
 228     r = setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid);
 229 #elif defined(HAVE_SETEUID)
 230     if ((r = setuid(pw->pw_uid)) >= 0)
 231         r = seteuid(pw->pw_uid);
 232 #elif defined(HAVE_SETREUID)
 233     r = setreuid(pw->pw_uid, pw->pw_uid);
 234 #else
 235 #error "No API to drop priviliges"
 236 #endif
 237
 238     if (r < 0) {
 239         pa_log("Failed to change UID: %s", pa_cstrerror(errno));
 240         return -1;
 241     }
 242
 243     set_env("USER", PA_SYSTEM_USER);
 244     set_env("LOGNAME", PA_SYSTEM_GROUP);
 245     set_env("HOME", PA_SYSTEM_RUNTIME_PATH);
 246
 247     /* Relevant for pa_runtime_path() */
 248     set_env("PULSE_RUNTIME_PATH", PA_SYSTEM_RUNTIME_PATH);
 249     set_env("PULSE_CONFIG_PATH", PA_SYSTEM_RUNTIME_PATH);
 250
 251     pa_log_info("Successfully dropped root privileges.");
 252
 253     return 0;
 254 }
 255
 256 #else /* HAVE_PWD_H && HAVE_GRP_H */
 257
 258 static int change_user(void) {
 259     pa_log("System wide mode unsupported on this platform.");
 260     return -1;
 261 }
 262
 263 #endif /* HAVE_PWD_H && HAVE_GRP_H */
 264
 265 static int create_runtime_dir(void) {
 266     char fn[PATH_MAX];
 267
 268     pa_runtime_path(NULL, fn, sizeof(fn));
 269
 270     /* This function is called only when the daemon is started in
 271      * per-user mode. We create the runtime directory somewhere in
 272      * /tmp/ with the current UID/GID */
 273
 274     if (pa_make_secure_dir(fn, 0700, (uid_t)-1, (gid_t)-1) < 0) {
 275         pa_log("Failed to create '%s': %s", fn, pa_cstrerror(errno));
 276         return -1;
 277     }
 278
 279     return 0;
 280 }
 281
 282 #ifdef HAVE_SYS_RESOURCE_H
 283
 284 static void set_one_rlimit(const pa_rlimit *r, int resource, const char *name) {
 285     struct rlimit rl;
 286     pa_assert(r);
 287
 288     if (!r->is_set)
 289         return;
 290
 291     rl.rlim_cur = rl.rlim_max = r->value;
 292
 293     if (setrlimit(resource, &rl) < 0)
 294         pa_log_warn("setrlimit(%s, (%u, %u)) failed: %s", name, (unsigned) r->value, (unsigned) r->value, pa_cstrerror(errno));
 295 }
 296
 297 static void set_all_rlimits(const pa_daemon_conf *conf) {
 298     set_one_rlimit(&conf->rlimit_as, RLIMIT_AS, "RLIMIT_AS");
 299     set_one_rlimit(&conf->rlimit_core, RLIMIT_CORE, "RLIMIT_CORE");
 300     set_one_rlimit(&conf->rlimit_data, RLIMIT_DATA, "RLIMIT_DATA");
 301     set_one_rlimit(&conf->rlimit_fsize, RLIMIT_FSIZE, "RLIMIT_FSIZE");
 302     set_one_rlimit(&conf->rlimit_nofile, RLIMIT_NOFILE, "RLIMIT_NOFILE");
 303     set_one_rlimit(&conf->rlimit_stack, RLIMIT_STACK, "RLIMIT_STACK");
 304 #ifdef RLIMIT_NPROC
 305     set_one_rlimit(&conf->rlimit_nproc, RLIMIT_NPROC, "RLIMIT_NPROC");
 306 #endif
 307 #ifdef RLIMIT_MEMLOCK
 308     set_one_rlimit(&conf->rlimit_memlock, RLIMIT_MEMLOCK, "RLIMIT_MEMLOCK");
 309 #endif
 310 }
 311 #endif
 312
 313 int main(int argc, char *argv[]) {
 314     pa_core *c = NULL;
 315     pa_strbuf *buf = NULL;
 316     pa_daemon_conf *conf = NULL;
 317     pa_mainloop *mainloop = NULL;
 318
 319     char *s;
 320     int r = 0, retval = 1, d = 0;
 321     int daemon_pipe[2] = { -1, -1 };
 322     int suid_root, real_root;
 323     int valid_pid_file = 0;
 324
 325     gid_t gid = (gid_t) -1;
 326
 327 #ifdef OS_IS_WIN32
 328     pa_time_event *timer;
 329     struct timeval tv;
 330 #endif
 331
 332 #ifdef HAVE_GETUID
 333     real_root = getuid() == 0;
 334     suid_root = !real_root && geteuid() == 0;
 335 #else
 336     real_root = 0;
 337     suid_root = 0;
 338 #endif
 339
 340     if (suid_root) {
 341         /* Drop all capabilities except CAP_SYS_NICE  */
 342         pa_limit_caps();
 343
 344         /* Drop priviliges, but keep CAP_SYS_NICE */
 345         pa_drop_root();
 346
 347         /* After dropping root, the effective set is reset, hence,
 348          * let's raise it again */
 349         pa_limit_caps();
 350
 351         /* When capabilities are not supported we will not be able to
 352          * aquire RT sched anymore. But yes, that's the way it is. It
 353          * is just too risky tun let PA run as root all the time. */
 354     }
 355
 356     setlocale(LC_ALL, "");
 357
 358     if (suid_root && (pa_own_uid_in_group(PA_REALTIME_GROUP, &gid) <= 0)) {
 359         pa_log_info("Warning: Called SUID root, but not in group '"PA_REALTIME_GROUP"'. "
 360                     "For enabling real-time scheduling please become a member of '"PA_REALTIME_GROUP"' , or increase the RLIMIT_RTPRIO user limit.");
 361         pa_drop_caps();
 362         pa_drop_root();
 363         suid_root = real_root = 0;
 364     }
 365
 366     LTDL_SET_PRELOADED_SYMBOLS();
 367
 368     pa_ltdl_init();
 369
 370 #ifdef OS_IS_WIN32
 371     {
 372         WSADATA data;
 373         WSAStartup(MAKEWORD(2, 0), &data);
 374     }
 375 #endif
 376
 377     pa_random_seed();
 378
 379     pa_log_set_ident("pulseaudio");
 380
 381     conf = pa_daemon_conf_new();
 382
 383     if (pa_daemon_conf_load(conf, NULL) < 0)
 384         goto finish;
 385
 386     if (pa_daemon_conf_env(conf) < 0)
 387         goto finish;
 388
 389     if (pa_cmdline_parse(conf, argc, argv, &d) < 0) {
 390         pa_log("failed to parse command line.");
 391         goto finish;
 392     }
 393
 394     pa_log_set_maximal_level(conf->log_level);
 395     pa_log_set_target(conf->auto_log_target ? PA_LOG_STDERR : conf->log_target, NULL);
 396
 397     if (conf->high_priority && conf->cmd == PA_CMD_DAEMON)
 398         pa_raise_priority();
 399
 400     if (suid_root && (conf->cmd != PA_CMD_DAEMON || !conf->high_priority)) {
 401         pa_drop_caps();
 402         pa_drop_root();
 403     }
 404
 405     if (conf->dl_search_path)
 406         lt_dlsetsearchpath(conf->dl_search_path);
 407
 408     switch (conf->cmd) {
 409         case PA_CMD_DUMP_MODULES:
 410             pa_dump_modules(conf, argc-d, argv+d);
 411             retval = 0;
 412             goto finish;
 413
 414         case PA_CMD_DUMP_CONF: {
 415             s = pa_daemon_conf_dump(conf);
 416             fputs(s, stdout);
 417             pa_xfree(s);
 418             retval = 0;
 419             goto finish;
 420         }
 421
 422         case PA_CMD_DUMP_RESAMPLE_METHODS: {
 423             int i;
 424
 425             for (i = 0; i < PA_RESAMPLER_MAX; i++)
 426                 if (pa_resample_method_supported(i))
 427                     printf("%s\n", pa_resample_method_to_string(i));
 428
 429             goto finish;
 430         }
 431
 432         case PA_CMD_HELP :
 433             pa_cmdline_help(argv[0]);
 434             retval = 0;
 435             goto finish;
 436
 437         case PA_CMD_VERSION :
 438             printf(PACKAGE_NAME" "PACKAGE_VERSION"\n");
 439             retval = 0;
 440             goto finish;
 441
 442         case PA_CMD_CHECK: {
 443             pid_t pid;
 444
 445             if (pa_pid_file_check_running(&pid) < 0) {
 446                 pa_log_info("daemon not running");
 447             } else {
 448                 pa_log_info("daemon running as PID %u", pid);
 449                 retval = 0;
 450             }
 451
 452             goto finish;
 453
 454         }
 455         case PA_CMD_KILL:
 456
 457             if (pa_pid_file_kill(SIGINT, NULL) < 0)
 458                 pa_log("failed to kill daemon.");
 459             else
 460                 retval = 0;
 461
 462             goto finish;
 463
 464         case PA_CMD_CLEANUP_SHM:
 465
 466             if (pa_shm_cleanup() >= 0)
 467                 retval = 0;
 468
 469             goto finish;
 470
 471         default:
 472             pa_assert(conf->cmd == PA_CMD_DAEMON);
 473     }
 474
 475     if (real_root && !conf->system_instance) {
 476         pa_log_warn("This program is not intended to be run as root (unless --system is specified).");
 477     } else if (!real_root && conf->system_instance) {
 478         pa_log("Root priviliges required.");
 479         goto finish;
 480     }
 481
 482     if (conf->daemonize) {
 483         pid_t child;
 484         int tty_fd;
 485
 486         if (pa_stdio_acquire() < 0) {
 487             pa_log("failed to acquire stdio.");
 488             goto finish;
 489         }
 490
 491 #ifdef HAVE_FORK
 492         if (pipe(daemon_pipe) < 0) {
 493             pa_log("failed to create pipe.");
 494             goto finish;
 495         }
 496
 497         if ((child = fork()) < 0) {
 498             pa_log("fork() failed: %s", pa_cstrerror(errno));
 499             goto finish;
 500         }
 501
 502         if (child != 0) {
 503             /* Father */
 504
 505             pa_assert_se(pa_close(daemon_pipe[1]) == 0);
 506             daemon_pipe[1] = -1;
 507
 508             if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval), NULL) != sizeof(retval)) {
 509                 pa_log("read() failed: %s", pa_cstrerror(errno));
 510                 retval = 1;
 511             }
 512
 513             if (retval)
 514                 pa_log("daemon startup failed.");
 515             else
 516                 pa_log_info("daemon startup successful.");
 517
 518             goto finish;
 519         }
 520
 521         pa_assert_se(pa_close(daemon_pipe[0]) == 0);
 522         daemon_pipe[0] = -1;
 523 #endif
 524
 525         if (conf->auto_log_target)
 526             pa_log_set_target(PA_LOG_SYSLOG, NULL);
 527
 528 #ifdef HAVE_SETSID
 529         setsid();
 530 #endif
 531 #ifdef HAVE_SETPGID
 532         setpgid(0,0);
 533 #endif
 534
 535 #ifndef OS_IS_WIN32
 536         pa_close(0);
 537         pa_close(1);
 538         pa_close(2);
 539
 540         open("/dev/null", O_RDONLY);
 541         open("/dev/null", O_WRONLY);
 542         open("/dev/null", O_WRONLY);
 543 #else
 544         FreeConsole();
 545 #endif
 546
 547 #ifdef SIGTTOU
 548         signal(SIGTTOU, SIG_IGN);
 549 #endif
 550 #ifdef SIGTTIN
 551         signal(SIGTTIN, SIG_IGN);
 552 #endif
 553 #ifdef SIGTSTP
 554         signal(SIGTSTP, SIG_IGN);
 555 #endif
 556
 557 #ifdef TIOCNOTTY
 558         if ((tty_fd = open("/dev/tty", O_RDWR)) >= 0) {
 559             ioctl(tty_fd, TIOCNOTTY, (char*) 0);
 560             pa_assert_se(pa_close(tty_fd) == 0);
 561         }
 562 #endif
 563     }
 564
 565     pa_assert_se(chdir("/") == 0);
 566     umask(0022);
 567
 568     if (conf->system_instance) {
 569         if (change_user() < 0)
 570             goto finish;
 571     } else if (create_runtime_dir() < 0)
 572         goto finish;
 573
 574     if (conf->use_pid_file) {
 575         if (pa_pid_file_create() < 0) {
 576             pa_log("pa_pid_file_create() failed.");
 577 #ifdef HAVE_FORK
 578             if (conf->daemonize)
 579                 pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 580 #endif
 581             goto finish;
 582         }
 583
 584         valid_pid_file = 1;
 585     }
 586
 587 #ifdef HAVE_SYS_RESOURCE_H
 588     set_all_rlimits(conf);
 589 #endif
 590
 591 #ifdef SIGPIPE
 592     signal(SIGPIPE, SIG_IGN);
 593 #endif
 594
 595     pa_log_info("Page size is %lu bytes", (unsigned long) PA_PAGE_SIZE);
 596
 597     if (pa_rtclock_hrtimer())
 598         pa_log_info("Fresh high-resolution timers available! Bon appetit!");
 599     else
 600         pa_log_info("Dude, your kernel stinks! The chef's recommendation today is Linux with high-resolution timers enabled!");
 601
 602     pa_rtsig_configure(SIGRTMIN+10, SIGRTMAX);
 603
 604     pa_assert_se(mainloop = pa_mainloop_new());
 605
 606     if (!(c = pa_core_new(pa_mainloop_get_api(mainloop), !conf->disable_shm))) {
 607         pa_log("pa_core_new() failed.");
 608         goto finish;
 609     }
 610
 611     c->is_system_instance = !!conf->system_instance;
 612     c->high_priority = !!conf->high_priority;
 613     c->default_sample_spec = conf->default_sample_spec;
 614     c->default_n_fragments = conf->default_n_fragments;
 615     c->default_fragment_size_msec = conf->default_fragment_size_msec;
 616     c->disallow_module_loading = conf->disallow_module_loading;
 617     c->exit_idle_time = conf->exit_idle_time;
 618     c->module_idle_time = conf->module_idle_time;
 619     c->scache_idle_time = conf->scache_idle_time;
 620     c->resample_method = conf->resample_method;
 621
 622     pa_assert_se(pa_signal_init(pa_mainloop_get_api(mainloop)) == 0);
 623     pa_signal_new(SIGINT, signal_callback, c);
 624     pa_signal_new(SIGTERM, signal_callback, c);
 625
 626 #ifdef SIGUSR1
 627     pa_signal_new(SIGUSR1, signal_callback, c);
 628 #endif
 629 #ifdef SIGUSR2
 630     pa_signal_new(SIGUSR2, signal_callback, c);
 631 #endif
 632 #ifdef SIGHUP
 633     pa_signal_new(SIGHUP, signal_callback, c);
 634 #endif
 635
 636 #ifdef OS_IS_WIN32
 637     pa_assert_se(timer = pa_mainloop_get_api(mainloop)->time_new(pa_mainloop_get_api(mainloop), pa_gettimeofday(&tv), message_cb, NULL));
 638 #endif
 639
 640     if (conf->daemonize)
 641         c->running_as_daemon = 1;
 642
 643     oil_init();
 644
 645     if (!conf->no_cpu_limit)
 646         pa_assert_se(pa_cpu_limit_init(pa_mainloop_get_api(mainloop)) == 0);
 647
 648     buf = pa_strbuf_new();
 649     if (conf->default_script_file)
 650         r = pa_cli_command_execute_file(c, conf->default_script_file, buf, &conf->fail);
 651
 652     if (r >= 0)
 653         r = pa_cli_command_execute(c, conf->script_commands, buf, &conf->fail);
 654     pa_log_error("%s", s = pa_strbuf_tostring_free(buf));
 655     pa_xfree(s);
 656
 657     if (r < 0 && conf->fail) {
 658         pa_log("failed to initialize daemon.");
 659 #ifdef HAVE_FORK
 660         if (conf->daemonize)
 661             pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 662 #endif
 663     } else if (!c->modules || pa_idxset_size(c->modules) == 0) {
 664         pa_log("daemon startup without any loaded modules, refusing to work.");
 665 #ifdef HAVE_FORK
 666         if (conf->daemonize)
 667             pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 668 #endif
 669     } else {
 670
 671         retval = 0;
 672 #ifdef HAVE_FORK
 673         if (conf->daemonize)
 674             pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 675 #endif
 676
 677         if (c->default_sink_name &&
 678             pa_namereg_get(c, c->default_sink_name, PA_NAMEREG_SINK, 1) == NULL) {
 679             pa_log_error("%s : Fatal error. Default sink name (%s) does not exist in name register.", __FILE__, c->default_sink_name);
 680             retval = 1;
 681         } else {
 682             pa_log_info("Daemon startup complete.");
 683             if (pa_mainloop_run(mainloop, &retval) < 0)
 684                 retval = 1;
 685             pa_log_info("Daemon shutdown initiated.");
 686         }
 687     }
 688
 689 #ifdef OS_IS_WIN32
 690     pa_mainloop_get_api(mainloop)->time_free(timer);
 691 #endif
 692
 693     pa_core_unref(c);
 694
 695     if (!conf->no_cpu_limit)
 696         pa_cpu_limit_done();
 697
 698     pa_signal_done();
 699
 700     pa_log_info("Daemon terminated.");
 701
 702 finish:
 703
 704     if (mainloop)
 705         pa_mainloop_free(mainloop);
 706
 707     if (conf)
 708         pa_daemon_conf_free(conf);
 709
 710     if (valid_pid_file)
 711         pa_pid_file_remove();
 712
 713     pa_close_pipe(daemon_pipe);
 714
 715 #ifdef OS_IS_WIN32
 716     WSACleanup();
 717 #endif
 718
 719     pa_ltdl_done();
 720
 721 #ifdef HAVE_DBUS
 722     dbus_shutdown();
 723 #endif
 724
 725     return retval;
 726 }