really create glitch-free branch

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2120 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 850 insertions, 0 deletions

diff --git a/src/daemon/main.c b/src/daemon/main.c
new file mode 100644
index 00000000..7823180a
--- /dev/null
+++ b/src/daemon/main.c
@@ -0,0 +1,850 @@
+/* $Id$ */
+
+/***
+  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("LOGNAME", PA_SYSTEM_GROUP);
+    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;
+#ifdef HAVE_FORK
+        if (conf->daemonize)
+            pa_loop_write(daemon_pipe[1], &retval, sizeof(retval), NULL);
+#endif
+
+        if (c->default_sink_name &&
+            pa_namereg_get(c, c->default_sink_name, PA_NAMEREG_SINK, 1) == NULL) {
+            pa_log_error("%s : Fatal error. Default sink name (%s) does not exist in name register.", __FILE__, c->default_sink_name);
+            retval = 1;
+        } else {
+            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;
+}