[pulseaudio-commits] [SCM] PulseAudio Sound Server branch, master, updated. v0.9.11-206-gfb837f0

Lennart Poettering gitmailer-noreply at 0pointer.de
Thu Sep 4 18:24:26 PDT 2008


This is an automated email from the git hooks/post-receive script. It was
generated because of a push to the "PulseAudio Sound Server" repository.

The master branch has been updated
      from  a609e4a700da10926fcb9c9633dee1342907de97 (commit)

- Log -----------------------------------------------------------------
fb837f0... rework autospawning to allow to multiple parallel autospawning contexts
994ff98... connect to localhost via IP address instead of host name, to avoid needless NSS lookup
89ed507... if we are exiting due to cpu overload, say so via syslog, too
f52fb64... if we are exiting due to idleness, say so
-----------------------------------------------------------------------

Summary of changes:
 src/daemon/cpulimit.c |    2 +
 src/pulse/context.c   |  318 +++++++++++++++++--------------------------------
 src/pulse/internal.h  |    3 -
 src/pulsecore/core.c  |    1 +
 4 files changed, 113 insertions(+), 211 deletions(-)

-----------------------------------------------------------------------

commit f52fb64313fd423cd085f7b53ce5663c0c17d382
Author: Lennart Poettering <lennart at poettering.net>
Date:   Fri Sep 5 03:17:48 2008 +0200

    if we are exiting due to idleness, say so

diff --git a/src/pulsecore/core.c b/src/pulsecore/core.c
index b9f04b6..6f8a292 100644
--- a/src/pulsecore/core.c
+++ b/src/pulsecore/core.c
@@ -204,6 +204,7 @@ static void exit_callback(pa_mainloop_api*m, pa_time_event *e, const struct time
     pa_core *c = userdata;
     pa_assert(c->exit_event == e);
 
+    pa_log_info("We are idle, quitting...");
     pa_core_exit(c, TRUE, 0);
 }
 

commit 89ed50750e46486ba06638f15f3bb32e92e5c903
Author: Lennart Poettering <lennart at poettering.net>
Date:   Fri Sep 5 03:18:36 2008 +0200

    if we are exiting due to cpu overload, say so via syslog, too

diff --git a/src/daemon/cpulimit.c b/src/daemon/cpulimit.c
index 5955282..a909600 100644
--- a/src/daemon/cpulimit.c
+++ b/src/daemon/cpulimit.c
@@ -167,6 +167,8 @@ static void callback(pa_mainloop_api*m, pa_io_event*e, int fd, pa_io_event_flags
     pa_assert(e == io_event);
     pa_assert(fd == the_pipe[0]);
 
+    pa_log("Recevied request to terminate due to CPU overload.");
+
     pa_read(the_pipe[0], &c, sizeof(c), NULL);
     m->quit(m, 1); /* Quit the main loop */
 }

commit 994ff984f04740e6817f3eb7b725e3825f3d290c
Author: Lennart Poettering <lennart at poettering.net>
Date:   Fri Sep 5 03:20:33 2008 +0200

    connect to localhost via IP address instead of host name, to avoid needless NSS lookup

diff --git a/src/pulse/context.c b/src/pulse/context.c
index f1aa498..723980e 100644
--- a/src/pulse/context.c
+++ b/src/pulse/context.c
@@ -905,8 +905,9 @@ int pa_context_connect(
             pa_xfree(d);
         }
 
-        c->server_list = pa_strlist_prepend(c->server_list, "tcp6:localhost");
-        c->server_list = pa_strlist_prepend(c->server_list, "tcp4:localhost");
+        /* Add TCP/IP on the localhost */
+        c->server_list = pa_strlist_prepend(c->server_list, "tcp6:[::1]");
+        c->server_list = pa_strlist_prepend(c->server_list, "tcp4:127.0.0.1");
 
         /* The system wide instance */
         c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET);

commit fb837f0cac00d0207f84c9e68e1f7c2d6cd33a51
Author: Lennart Poettering <lennart at poettering.net>
Date:   Fri Sep 5 03:22:13 2008 +0200

    rework autospawning to allow to multiple parallel autospawning contexts

diff --git a/src/pulse/context.c b/src/pulse/context.c
index 723980e..154e5fa 100644
--- a/src/pulse/context.c
+++ b/src/pulse/context.c
@@ -54,7 +54,6 @@
 #include <pulse/utf8.h>
 #include <pulse/util.h>
 #include <pulse/i18n.h>
-#include <pulse/lock-autospawn.h>
 
 #include <pulsecore/winsock.h>
 #include <pulsecore/core-error.h>
@@ -98,26 +97,6 @@ static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = {
     [PA_COMMAND_SUBSCRIBE_EVENT] = pa_command_subscribe_event,
     [PA_COMMAND_EXTENSION] = pa_command_extension
 };
-
-static void unlock_autospawn(pa_context *c) {
-    pa_assert(c);
-
-    if (c->autospawn_fd >= 0) {
-
-        if (c->autospawn_locked)
-            pa_autospawn_lock_release();
-
-        if (c->autospawn_event)
-            c->mainloop->io_free(c->autospawn_event);
-
-        pa_autospawn_lock_done(FALSE);
-    }
-
-    c->autospawn_locked = FALSE;
-    c->autospawn_fd = -1;
-    c->autospawn_event = NULL;
-}
-
 static void context_free(pa_context *c);
 
 pa_context *pa_context_new(pa_mainloop_api *mainloop, const char *name) {
@@ -180,9 +159,6 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *
     c->do_shm = FALSE;
 
     c->do_autospawn = FALSE;
-    c->autospawn_fd = -1;
-    c->autospawn_locked = FALSE;
-    c->autospawn_event = NULL;
     memset(&c->spawn_api, 0, sizeof(c->spawn_api));
 
 #ifndef MSG_NOSIGNAL
@@ -252,8 +228,6 @@ static void context_free(pa_context *c) {
 
     context_unlink(c);
 
-    unlock_autospawn(c);
-
     if (c->record_streams)
         pa_dynarray_free(c->record_streams, NULL, NULL);
     if (c->playback_streams)
@@ -577,31 +551,89 @@ static void setup_context(pa_context *c, pa_iochannel *io) {
     pa_context_unref(c);
 }
 
-static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userdata);
+static char *get_old_legacy_runtime_dir(void) {
+    char *p, u[128];
+    struct stat st;
 
-#ifndef OS_IS_WIN32
+    if (!pa_get_user_name(u, sizeof(u)))
+        return NULL;
 
-static int context_connect_spawn(pa_context *c) {
-    pid_t pid;
-    int status, r;
-    int fds[2] = { -1, -1} ;
-    pa_iochannel *io;
+    p = pa_sprintf_malloc("/tmp/pulse-%s", u);
 
-    if (getuid() == 0)
-        return -1;
+    if (stat(p, &st) < 0) {
+        pa_xfree(p);
+        return NULL;
+    }
 
-    pa_context_ref(c);
+    if (st.st_uid != getuid()) {
+        pa_xfree(p);
+        return NULL;
+    }
 
-    if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds) < 0) {
-        pa_log_error(_("socketpair(): %s"), pa_cstrerror(errno));
-        pa_context_fail(c, PA_ERR_INTERNAL);
-        goto fail;
+    return p;
+}
+
+static char *get_very_old_legacy_runtime_dir(void) {
+    char *p, h[128];
+    struct stat st;
+
+    if (!pa_get_home_dir(h, sizeof(h)))
+        return NULL;
+
+    p = pa_sprintf_malloc("%s/.pulse", h);
+
+    if (stat(p, &st) < 0) {
+        pa_xfree(p);
+        return NULL;
+    }
+
+    if (st.st_uid != getuid()) {
+        pa_xfree(p);
+        return NULL;
+    }
+
+    return p;
+}
+
+
+static pa_strlist *prepend_per_user(pa_strlist *l) {
+    char *ufn;
+    static char *legacy_dir;
+
+    /* The very old per-user instance path (< 0.9.11). This is supported only to ease upgrades */
+    if ((legacy_dir = get_very_old_legacy_runtime_dir())) {
+        char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir);
+        l = pa_strlist_prepend(l, p);
+        pa_xfree(p);
+        pa_xfree(legacy_dir);
+    }
+
+    /* The old per-user instance path (< 0.9.12). This is supported only to ease upgrades */
+    if ((legacy_dir = get_old_legacy_runtime_dir())) {
+        char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir);
+        l = pa_strlist_prepend(l, p);
+        pa_xfree(p);
+        pa_xfree(legacy_dir);
     }
 
-    pa_make_fd_cloexec(fds[0]);
+    /* The per-user instance */
+    if ((ufn = pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET))) {
+        l = pa_strlist_prepend(l, ufn);
+        pa_xfree(ufn);
+    }
+
+    return l;
+}
 
-    pa_make_socket_low_delay(fds[0]);
-    pa_make_socket_low_delay(fds[1]);
+#ifndef OS_IS_WIN32
+
+static int context_autospawn(pa_context *c) {
+    pid_t pid;
+    int status, r;
+
+    pa_log_debug("Trying to autospawn...");
+
+    pa_context_ref(c);
 
     if (c->spawn_api.prefork)
         c->spawn_api.prefork();
@@ -617,31 +649,22 @@ static int context_connect_spawn(pa_context *c) {
     } else if (!pid) {
         /* Child */
 
-        char t[128];
         const char *state = NULL;
 #define MAX_ARGS 64
         const char * argv[MAX_ARGS+1];
         int n;
-        char *f;
-
-        pa_close_all(fds[1], -1);
-
-        f = pa_sprintf_malloc("%i", fds[1]);
-        pa_set_env("PULSE_PASSED_FD", f);
-        pa_xfree(f);
 
         if (c->spawn_api.atfork)
             c->spawn_api.atfork();
 
+        pa_close_all(-1);
+
         /* Setup argv */
 
         n = 0;
 
         argv[n++] = c->conf->daemon_binary;
-        argv[n++] = "--daemonize=yes";
-
-        pa_snprintf(t, sizeof(t), "-Lmodule-native-protocol-fd fd=%i", fds[1]);
-        argv[n++] = strdup(t);
+        argv[n++] = "--start";
 
         while (n < MAX_ARGS) {
             char *a;
@@ -661,14 +684,13 @@ static int context_connect_spawn(pa_context *c) {
 
     /* Parent */
 
-    pa_assert_se(pa_close(fds[1]) == 0);
-    fds[1] = -1;
-
-    r = waitpid(pid, &status, 0);
-
     if (c->spawn_api.postfork)
         c->spawn_api.postfork();
 
+    do {
+        r = waitpid(pid, &status, 0);
+    } while (r < 0 && errno == EINTR);
+
     if (r < 0) {
         pa_log(_("waitpid(): %s"), pa_cstrerror(errno));
         pa_context_fail(c, PA_ERR_INTERNAL);
@@ -678,21 +700,11 @@ static int context_connect_spawn(pa_context *c) {
         goto fail;
     }
 
-    c->is_local = TRUE;
-
-    unlock_autospawn(c);
-
-    io = pa_iochannel_new(c->mainloop, fds[0], fds[0]);
-    setup_context(c, io);
-
     pa_context_unref(c);
 
     return 0;
 
 fail:
-    pa_close_pipe(fds);
-
-    unlock_autospawn(c);
 
     pa_context_unref(c);
 
@@ -701,6 +713,8 @@ fail:
 
 #endif /* OS_IS_WIN32 */
 
+static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userdata);
+
 static int try_next_connection(pa_context *c) {
     char *u = NULL;
     int r = -1;
@@ -718,8 +732,18 @@ static int try_next_connection(pa_context *c) {
 
 #ifndef OS_IS_WIN32
             if (c->do_autospawn) {
-                r = context_connect_spawn(c);
-                goto finish;
+
+                if ((r = context_autospawn(c)) < 0)
+                    goto finish;
+
+                /* Autospawn only once */
+                c->do_autospawn = FALSE;
+
+                /* Connect only to per-user sockets this time */
+                c->server_list = prepend_per_user(c->server_list);
+
+                /* Retry connection */
+                continue;
             }
 #endif
 
@@ -774,91 +798,12 @@ static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userd
         goto finish;
     }
 
-    unlock_autospawn(c);
     setup_context(c, io);
 
 finish:
     pa_context_unref(c);
 }
 
-static void autospawn_cb(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) {
-    pa_context *c = userdata;
-    int k;
-
-    pa_assert(a);
-    pa_assert(e);
-    pa_assert(fd >= 0);
-    pa_assert(events == PA_IO_EVENT_INPUT);
-    pa_assert(c);
-    pa_assert(e == c->autospawn_event);
-    pa_assert(fd == c->autospawn_fd);
-
-    pa_context_ref(c);
-
-    /* Check whether we can get the lock right now*/
-    if ((k = pa_autospawn_lock_acquire(FALSE)) < 0) {
-        pa_context_fail(c, PA_ERR_ACCESS);
-        goto finish;
-    }
-
-    if (k > 0) {
-        /* So we got it, rock on! */
-        c->autospawn_locked = TRUE;
-        try_next_connection(c);
-
-        c->mainloop->io_free(c->autospawn_event);
-        c->autospawn_event = NULL;
-    }
-
-finish:
-
-    pa_context_unref(c);
-}
-
-static char *get_old_legacy_runtime_dir(void) {
-    char *p, u[128];
-    struct stat st;
-
-    if (!pa_get_user_name(u, sizeof(u)))
-        return NULL;
-
-    p = pa_sprintf_malloc("/tmp/pulse-%s", u);
-
-    if (stat(p, &st) < 0) {
-        pa_xfree(p);
-        return NULL;
-    }
-
-    if (st.st_uid != getuid()) {
-        pa_xfree(p);
-        return NULL;
-    }
-
-    return p;
-}
-
-static char *get_very_old_legacy_runtime_dir(void) {
-    char *p, h[128];
-    struct stat st;
-
-    if (!pa_get_home_dir(h, sizeof(h)))
-        return NULL;
-
-    p = pa_sprintf_malloc("%s/.pulse", h);
-
-    if (stat(p, &st) < 0) {
-        pa_xfree(p);
-        return NULL;
-    }
-
-    if (st.st_uid != getuid()) {
-        pa_xfree(p);
-        return NULL;
-    }
-
-    return p;
-}
-
 int pa_context_connect(
         pa_context *c,
         const char *server,
@@ -888,11 +833,11 @@ int pa_context_connect(
         }
 
     } else {
-        char *d, *ufn;
-        static char *legacy_dir;
+        char *d;
 
         /* Prepend in reverse order */
 
+        /* Follow the X display */
         if ((d = getenv("DISPLAY"))) {
             char *e;
             d = pa_xstrdup(d);
@@ -909,67 +854,23 @@ int pa_context_connect(
         c->server_list = pa_strlist_prepend(c->server_list, "tcp6:[::1]");
         c->server_list = pa_strlist_prepend(c->server_list, "tcp4:127.0.0.1");
 
-        /* The system wide instance */
+        /* The system wide instance via PF_LOCAL */
         c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET);
 
-        /* The very old per-user instance path (< 0.9.11). This is supported only to ease upgrades */
-        if ((legacy_dir = get_very_old_legacy_runtime_dir())) {
-            char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir);
-            c->server_list = pa_strlist_prepend(c->server_list, p);
-            pa_xfree(p);
-            pa_xfree(legacy_dir);
-        }
+        /* The user instance via PF_LOCAL */
+        c->server_list = prepend_per_user(c->server_list);
 
-        /* The old per-user instance path (< 0.9.12). This is supported only to ease upgrades */
-        if ((legacy_dir = get_old_legacy_runtime_dir())) {
-            char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir);
-            c->server_list = pa_strlist_prepend(c->server_list, p);
-            pa_xfree(p);
-            pa_xfree(legacy_dir);
-        }
-
-        /* The per-user instance */
-        if ((ufn = pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET))) {
-            c->server_list = pa_strlist_prepend(c->server_list, ufn);
-            pa_xfree(ufn);
-        }
-
-        /* Wrap the connection attempts in a single transaction for sane autospawn locking */
+        /* Set up autospawning */
         if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) {
-            int k;
-
-            pa_assert(c->autospawn_fd < 0);
-            pa_assert(!c->autospawn_locked);
 
-            /* Start the locking procedure */
-            if ((c->autospawn_fd = pa_autospawn_lock_init()) < 0) {
-                pa_context_fail(c, PA_ERR_ACCESS);
-                goto finish;
-            }
-
-            if (api)
-                c->spawn_api = *api;
-
-            c->do_autospawn = TRUE;
-
-            /* Check whether we can get the lock right now*/
-            if ((k = pa_autospawn_lock_acquire(FALSE)) < 0) {
-                pa_context_fail(c, PA_ERR_ACCESS);
-                goto finish;
-            }
-
-            if (k > 0)
-                /* So we got it, rock on! */
-                c->autospawn_locked = TRUE;
+            if (getuid() == 0)
+                pa_log_debug("Not doing autospawn since we are root.");
             else {
-                /* Hmm, we didn't get it, so let's wait for it */
-                c->autospawn_event = c->mainloop->io_new(c->mainloop, c->autospawn_fd, PA_IO_EVENT_INPUT, autospawn_cb, c);
+                c->do_autospawn = TRUE;
 
-                pa_context_set_state(c, PA_CONTEXT_CONNECTING);
-                r = 0;
-                goto finish;
+                if (api)
+                    c->spawn_api = *api;
             }
-
         }
     }
 
diff --git a/src/pulse/internal.h b/src/pulse/internal.h
index 9167bf1..5fe4210 100644
--- a/src/pulse/internal.h
+++ b/src/pulse/internal.h
@@ -78,9 +78,6 @@ struct pa_context {
     pa_bool_t do_shm:1;
 
     pa_bool_t do_autospawn:1;
-    pa_bool_t autospawn_locked:1;
-    int autospawn_fd;
-    pa_io_event *autospawn_event;
     pa_spawn_api spawn_api;
 
     pa_strlist *server_list;

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