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_sig2str(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 #ifdef RLIMIT_NICE
 311     set_one_rlimit(&conf->rlimit_nice, RLIMIT_NICE, "RLIMIT_NICE");
 312 #endif
 313 #ifdef RLIMIT_RTPRIO
 314     set_one_rlimit(&conf->rlimit_rtprio, RLIMIT_RTPRIO, "RLIMIT_RTPRIO");
 315 #endif
 316 }
 317 #endif
 318
 319 int main(int argc, char *argv[]) {
 320     pa_core *c = NULL;
 321     pa_strbuf *buf = NULL;
 322     pa_daemon_conf *conf = NULL;
 323     pa_mainloop *mainloop = NULL;
 324     char *s;
 325     int r = 0, retval = 1, d = 0;
 326     int daemon_pipe[2] = { -1, -1 };
 327     int suid_root, real_root;
 328     int valid_pid_file = 0;
 329     gid_t gid = (gid_t) -1;
 330
 331 #ifdef OS_IS_WIN32
 332     pa_time_event *timer;
 333     struct timeval tv;
 334 #endif
 335
 336
 337 #if defined(__linux__) && defined(__OPTIMIZE__)
 338     /*
 339        Disable lazy relocations to make usage of external libraries
 340        more deterministic for our RT threads. We abuse __OPTIMIZE__ as
 341        a check whether we are a debug build or not.
 342     */
 343
 344     if (!getenv("LD_BIND_NOW")) {
 345         char *rp;
 346
 347         /* We have to execute ourselves, because the libc caches the
 348          * value of $LD_BIND_NOW on initialization. */
 349
 350         putenv(pa_xstrdup("LD_BIND_NOW=1"));
 351         pa_assert_se(rp = pa_readlink("/proc/self/exe"));
 352         pa_assert_se(execv(rp, argv) == 0);
 353     }
 354 #endif
 355
 356 #ifdef HAVE_GETUID
 357     real_root = getuid() == 0;
 358     suid_root = !real_root && geteuid() == 0;
 359 #else
 360     real_root = 0;
 361     suid_root = 0;
 362 #endif
 363
 364     if (suid_root) {
 365         /* Drop all capabilities except CAP_SYS_NICE  */
 366         pa_limit_caps();
 367
 368         /* Drop priviliges, but keep CAP_SYS_NICE */
 369         pa_drop_root();
 370
 371         /* After dropping root, the effective set is reset, hence,
 372          * let's raise it again */
 373         pa_limit_caps();
 374
 375         /* When capabilities are not supported we will not be able to
 376          * aquire RT sched anymore. But yes, that's the way it is. It
 377          * is just too risky tun let PA run as root all the time. */
 378     }
 379
 380     setlocale(LC_ALL, "");
 381
 382     if (suid_root && (pa_own_uid_in_group(PA_REALTIME_GROUP, &gid) <= 0)) {
 383         pa_log_info("Warning: Called SUID root, but not in group '"PA_REALTIME_GROUP"'. "
 384                     "For enabling real-time scheduling please become a member of '"PA_REALTIME_GROUP"' , or increase the RLIMIT_RTPRIO user limit.");
 385         pa_drop_caps();
 386         pa_drop_root();
 387         suid_root = real_root = 0;
 388     }
 389
 390     LTDL_SET_PRELOADED_SYMBOLS();
 391
 392     pa_ltdl_init();
 393
 394 #ifdef OS_IS_WIN32
 395     {
 396         WSADATA data;
 397         WSAStartup(MAKEWORD(2, 0), &data);
 398     }
 399 #endif
 400
 401     pa_random_seed();
 402
 403     pa_log_set_ident("pulseaudio");
 404
 405     conf = pa_daemon_conf_new();
 406
 407     if (pa_daemon_conf_load(conf, NULL) < 0)
 408         goto finish;
 409
 410     if (pa_daemon_conf_env(conf) < 0)
 411         goto finish;
 412
 413     if (pa_cmdline_parse(conf, argc, argv, &d) < 0) {
 414         pa_log("failed to parse command line.");
 415         goto finish;
 416     }
 417
 418     pa_log_set_maximal_level(conf->log_level);
 419     pa_log_set_target(conf->auto_log_target ? PA_LOG_STDERR : conf->log_target, NULL);
 420
 421     if (conf->high_priority && conf->cmd == PA_CMD_DAEMON)
 422         pa_raise_priority(conf->nice_level);
 423
 424     if (suid_root && (conf->cmd != PA_CMD_DAEMON || !conf->realtime_scheduling)) {
 425         pa_drop_caps();
 426         pa_drop_root();
 427     }
 428
 429     if (conf->dl_search_path)
 430         lt_dlsetsearchpath(conf->dl_search_path);
 431
 432     switch (conf->cmd) {
 433         case PA_CMD_DUMP_MODULES:
 434             pa_dump_modules(conf, argc-d, argv+d);
 435             retval = 0;
 436             goto finish;
 437
 438         case PA_CMD_DUMP_CONF: {
 439             s = pa_daemon_conf_dump(conf);
 440             fputs(s, stdout);
 441             pa_xfree(s);
 442             retval = 0;
 443             goto finish;
 444         }
 445
 446         case PA_CMD_DUMP_RESAMPLE_METHODS: {
 447             int i;
 448
 449             for (i = 0; i < PA_RESAMPLER_MAX; i++)
 450                 if (pa_resample_method_supported(i))
 451                     printf("%s\n", pa_resample_method_to_string(i));
 452
 453             goto finish;
 454         }
 455
 456         case PA_CMD_HELP :
 457             pa_cmdline_help(argv[0]);
 458             retval = 0;
 459             goto finish;
 460
 461         case PA_CMD_VERSION :
 462             printf(PACKAGE_NAME" "PACKAGE_VERSION"\n");
 463             retval = 0;
 464             goto finish;
 465
 466         case PA_CMD_CHECK: {
 467             pid_t pid;
 468
 469             if (pa_pid_file_check_running(&pid) < 0) {
 470                 pa_log_info("daemon not running");
 471             } else {
 472                 pa_log_info("daemon running as PID %u", pid);
 473                 retval = 0;
 474             }
 475
 476             goto finish;
 477
 478         }
 479         case PA_CMD_KILL:
 480
 481             if (pa_pid_file_kill(SIGINT, NULL) < 0)
 482                 pa_log("failed to kill daemon.");
 483             else
 484                 retval = 0;
 485
 486             goto finish;
 487
 488         case PA_CMD_CLEANUP_SHM:
 489
 490             if (pa_shm_cleanup() >= 0)
 491                 retval = 0;
 492
 493             goto finish;
 494
 495         default:
 496             pa_assert(conf->cmd == PA_CMD_DAEMON);
 497     }
 498
 499     if (real_root && !conf->system_instance) {
 500         pa_log_warn("This program is not intended to be run as root (unless --system is specified).");
 501     } else if (!real_root && conf->system_instance) {
 502         pa_log("Root priviliges required.");
 503         goto finish;
 504     }
 505
 506     if (conf->daemonize) {
 507         pid_t child;
 508         int tty_fd;
 509
 510         if (pa_stdio_acquire() < 0) {
 511             pa_log("failed to acquire stdio.");
 512             goto finish;
 513         }
 514
 515 #ifdef HAVE_FORK
 516         if (pipe(daemon_pipe) < 0) {
 517             pa_log("failed to create pipe.");
 518             goto finish;
 519         }
 520
 521         if ((child = fork()) < 0) {
 522             pa_log("fork() failed: %s", pa_cstrerror(errno));
 523             goto finish;
 524         }
 525
 526         if (child != 0) {
 527             /* Father */
 528
 529             pa_assert_se(pa_close(daemon_pipe[1]) == 0);
 530             daemon_pipe[1] = -1;
 531
 532             if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval), NULL) != sizeof(retval)) {
 533                 pa_log("read() failed: %s", pa_cstrerror(errno));
 534                 retval = 1;
 535             }
 536
 537             if (retval)
 538                 pa_log("daemon startup failed.");
 539             else
 540                 pa_log_info("daemon startup successful.");
 541
 542             goto finish;
 543         }
 544
 545         pa_assert_se(pa_close(daemon_pipe[0]) == 0);
 546         daemon_pipe[0] = -1;
 547 #endif
 548
 549         if (conf->auto_log_target)
 550             pa_log_set_target(PA_LOG_SYSLOG, NULL);
 551
 552 #ifdef HAVE_SETSID
 553         setsid();
 554 #endif
 555 #ifdef HAVE_SETPGID
 556         setpgid(0,0);
 557 #endif
 558
 559 #ifndef OS_IS_WIN32
 560         pa_close(0);
 561         pa_close(1);
 562         pa_close(2);
 563
 564         open("/dev/null", O_RDONLY);
 565         open("/dev/null", O_WRONLY);
 566         open("/dev/null", O_WRONLY);
 567 #else
 568         FreeConsole();
 569 #endif
 570
 571 #ifdef SIGTTOU
 572         signal(SIGTTOU, SIG_IGN);
 573 #endif
 574 #ifdef SIGTTIN
 575         signal(SIGTTIN, SIG_IGN);
 576 #endif
 577 #ifdef SIGTSTP
 578         signal(SIGTSTP, SIG_IGN);
 579 #endif
 580
 581 #ifdef TIOCNOTTY
 582         if ((tty_fd = open("/dev/tty", O_RDWR)) >= 0) {
 583             ioctl(tty_fd, TIOCNOTTY, (char*) 0);
 584             pa_assert_se(pa_close(tty_fd) == 0);
 585         }
 586 #endif
 587     }
 588
 589     pa_assert_se(chdir("/") == 0);
 590     umask(0022);
 591
 592     if (conf->system_instance) {
 593         if (change_user() < 0)
 594             goto finish;
 595     } else if (create_runtime_dir() < 0)
 596         goto finish;
 597
 598     if (conf->use_pid_file) {
 599         if (pa_pid_file_create() < 0) {
 600             pa_log("pa_pid_file_create() failed.");
 601 #ifdef HAVE_FORK
 602             if (conf->daemonize)
 603                 pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 604 #endif
 605             goto finish;
 606         }
 607
 608         valid_pid_file = 1;
 609     }
 610
 611 #ifdef HAVE_SYS_RESOURCE_H
 612     set_all_rlimits(conf);
 613 #endif
 614
 615 #ifdef SIGPIPE
 616     signal(SIGPIPE, SIG_IGN);
 617 #endif
 618
 619     pa_log_info("Page size is %lu bytes", (unsigned long) PA_PAGE_SIZE);
 620
 621     if (pa_rtclock_hrtimer())
 622         pa_log_info("Fresh high-resolution timers available! Bon appetit!");
 623     else
 624         pa_log_info("Dude, your kernel stinks! The chef's recommendation today is Linux with high-resolution timers enabled!");
 625
 626 #ifdef SIGRTMIN
 627     /* Valgrind uses SIGRTMAX. To easy debugging we don't use it here */
 628     pa_rtsig_configure(SIGRTMIN, SIGRTMAX-1);
 629 #endif
 630
 631     pa_assert_se(mainloop = pa_mainloop_new());
 632
 633     if (!(c = pa_core_new(pa_mainloop_get_api(mainloop), !conf->disable_shm))) {
 634         pa_log("pa_core_new() failed.");
 635         goto finish;
 636     }
 637
 638     c->is_system_instance = !!conf->system_instance;
 639     c->default_sample_spec = conf->default_sample_spec;
 640     c->default_n_fragments = conf->default_n_fragments;
 641     c->default_fragment_size_msec = conf->default_fragment_size_msec;
 642     c->disallow_module_loading = conf->disallow_module_loading;
 643     c->exit_idle_time = conf->exit_idle_time;
 644     c->module_idle_time = conf->module_idle_time;
 645     c->scache_idle_time = conf->scache_idle_time;
 646     c->resample_method = conf->resample_method;
 647     c->realtime_priority = conf->realtime_priority;
 648     c->realtime_scheduling = !!conf->realtime_scheduling;
 649
 650     pa_assert_se(pa_signal_init(pa_mainloop_get_api(mainloop)) == 0);
 651     pa_signal_new(SIGINT, signal_callback, c);
 652     pa_signal_new(SIGTERM, signal_callback, c);
 653
 654 #ifdef SIGUSR1
 655     pa_signal_new(SIGUSR1, signal_callback, c);
 656 #endif
 657 #ifdef SIGUSR2
 658     pa_signal_new(SIGUSR2, signal_callback, c);
 659 #endif
 660 #ifdef SIGHUP
 661     pa_signal_new(SIGHUP, signal_callback, c);
 662 #endif
 663
 664 #ifdef OS_IS_WIN32
 665     pa_assert_se(timer = pa_mainloop_get_api(mainloop)->time_new(pa_mainloop_get_api(mainloop), pa_gettimeofday(&tv), message_cb, NULL));
 666 #endif
 667
 668     if (conf->daemonize)
 669         c->running_as_daemon = 1;
 670
 671     oil_init();
 672
 673     if (!conf->no_cpu_limit)
 674         pa_assert_se(pa_cpu_limit_init(pa_mainloop_get_api(mainloop)) == 0);
 675
 676     buf = pa_strbuf_new();
 677     if (conf->default_script_file)
 678         r = pa_cli_command_execute_file(c, conf->default_script_file, buf, &conf->fail);
 679
 680     if (r >= 0)
 681         r = pa_cli_command_execute(c, conf->script_commands, buf, &conf->fail);
 682     pa_log_error("%s", s = pa_strbuf_tostring_free(buf));
 683     pa_xfree(s);
 684
 685     if (r < 0 && conf->fail) {
 686         pa_log("failed to initialize daemon.");
 687 #ifdef HAVE_FORK
 688         if (conf->daemonize)
 689             pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 690 #endif
 691     } else if (!c->modules || pa_idxset_size(c->modules) == 0) {
 692         pa_log("daemon startup without any loaded modules, refusing to work.");
 693 #ifdef HAVE_FORK
 694         if (conf->daemonize)
 695             pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 696 #endif
 697     } else {
 698
 699         retval = 0;
 700 #ifdef HAVE_FORK
 701         if (conf->daemonize)
 702             pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
 703 #endif
 704
 705         if (c->default_sink_name &&
 706             pa_namereg_get(c, c->default_sink_name, PA_NAMEREG_SINK, 1) == NULL) {
 707             pa_log_error("%s : Fatal error. Default sink name (%s) does not exist in name register.", __FILE__, c->default_sink_name);
 708             retval = 1;
 709         } else {
 710             pa_log_info("Daemon startup complete.");
 711             if (pa_mainloop_run(mainloop, &retval) < 0)
 712                 retval = 1;
 713             pa_log_info("Daemon shutdown initiated.");
 714         }
 715     }
 716
 717 #ifdef OS_IS_WIN32
 718     pa_mainloop_get_api(mainloop)->time_free(timer);
 719 #endif
 720
 721     pa_core_unref(c);
 722
 723     if (!conf->no_cpu_limit)
 724         pa_cpu_limit_done();
 725
 726     pa_signal_done();
 727
 728     pa_log_info("Daemon terminated.");
 729
 730 finish:
 731
 732     if (mainloop)
 733         pa_mainloop_free(mainloop);
 734
 735     if (conf)
 736         pa_daemon_conf_free(conf);
 737
 738     if (valid_pid_file)
 739         pa_pid_file_remove();
 740
 741     pa_close_pipe(daemon_pipe);
 742
 743 #ifdef OS_IS_WIN32
 744     WSACleanup();
 745 #endif
 746
 747     pa_ltdl_done();
 748
 749 #ifdef HAVE_DBUS
 750     dbus_shutdown();
 751 #endif
 752
 753     return retval;
 754 }