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