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-rw-r--r--src/Makefile.am8
-rwxr-xr-xsrc/daemon/default.pa.in5
-rw-r--r--src/modules/module-always-sink.c180
-rw-r--r--src/modules/module-combine.c6
-rw-r--r--src/modules/module-device-restore.c4
-rw-r--r--src/modules/module-null-sink.c4
-rw-r--r--src/modules/module-position-event-sounds.c2
-rw-r--r--src/modules/module-rescue-streams.c4
-rw-r--r--src/modules/module-suspend-on-idle.c30
-rw-r--r--src/modules/module-volume-restore.c6
-rw-r--r--src/modules/module-zeroconf-publish.c12
-rw-r--r--src/pulsecore/hook-list.c37
-rw-r--r--src/pulsecore/hook-list.h14
-rw-r--r--src/tests/hook-list-test.c10
14 files changed, 262 insertions, 60 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index e626d04e..a5d0fd75 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1021,6 +1021,7 @@ modlibexec_LTLIBRARIES += \
module-volume-restore.la \
module-device-restore.la \
module-default-device-restore.la \
+ module-always-sink.la \
module-rescue-streams.la \
module-suspend-on-idle.la \
module-http-protocol-tcp.la \
@@ -1200,6 +1201,7 @@ SYMDEF_FILES = \
modules/module-volume-restore-symdef.h \
modules/module-device-restore-symdef.h \
modules/module-default-device-restore-symdef.h \
+ modules/module-always-sink-symdef.h \
modules/module-rescue-streams-symdef.h \
modules/module-suspend-on-idle-symdef.h \
modules/module-hal-detect-symdef.h \
@@ -1459,6 +1461,12 @@ module_default_device_restore_la_LDFLAGS = -module -avoid-version
module_default_device_restore_la_LIBADD = $(AM_LIBADD) libpulsecore.la
module_default_device_restore_la_CFLAGS = $(AM_CFLAGS)
+# Always Sink module
+module_always_sink_la_SOURCES = modules/module-always-sink.c
+module_always_sink_la_LDFLAGS = -module -avoid-version
+module_always_sink_la_LIBADD = $(AM_LIBADD) libpulsecore.la
+module_always_sink_la_CFLAGS = $(AM_CFLAGS)
+
# Rescue streams module
module_rescue_streams_la_SOURCES = modules/module-rescue-streams.c
module_rescue_streams_la_LDFLAGS = -module -avoid-version
diff --git a/src/daemon/default.pa.in b/src/daemon/default.pa.in
index 057b79c8..aad9f5d6 100755
--- a/src/daemon/default.pa.in
+++ b/src/daemon/default.pa.in
@@ -74,11 +74,14 @@ load-module module-default-device-restore
### connected to dies, similar for sources
load-module module-rescue-streams
+### Make sure we always have a sink around, even if it is a null sink.
+load-module module-always-sink
+
### Automatically suspend sinks/sources that become idle for too long
load-module module-suspend-on-idle
### Load X11 bell module
-#load-module module-x11-bell sample=x11-bell
+#load-module module-x11-bell sample=bell-windowing-system
### Register ourselves in the X11 session manager
# Deactivated by default, to avoid deadlock when PA is started as esd from gnome-session
diff --git a/src/modules/module-always-sink.c b/src/modules/module-always-sink.c
new file mode 100644
index 00000000..fd644a2f
--- /dev/null
+++ b/src/modules/module-always-sink.c
@@ -0,0 +1,180 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2008 Colin Guthrie
+
+ 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 <pulse/xmalloc.h>
+
+#include <pulsecore/core.h>
+#include <pulsecore/sink-input.h>
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/namereg.h>
+#include <pulsecore/core-util.h>
+
+#include "module-always-sink-symdef.h"
+
+PA_MODULE_AUTHOR("Colin Guthrie");
+PA_MODULE_DESCRIPTION("Always keeps at least one sink loaded even if it's a null one");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(TRUE);
+PA_MODULE_USAGE(
+ "sink_name=<name of sink>");
+
+#define DEFAULT_SINK_NAME "auto_null"
+
+static const char* const valid_modargs[] = {
+ "sink_name",
+ NULL,
+};
+
+struct userdata {
+ pa_hook_slot *put_slot, *unlink_slot;
+ pa_module* null_module;
+ pa_bool_t ignore;
+ char *sink_name;
+};
+
+static void load_null_sink_if_needed(pa_core *c, pa_sink *sink, struct userdata* u) {
+ pa_sink *target;
+ uint32_t idx;
+ char *t;
+
+ pa_assert(c);
+ pa_assert(u);
+ pa_assert(!u->null_module);
+
+ /* Loop through all sinks and check to see if we have *any*
+ * sinks. Ignore the sink passed in (if it's not null) */
+ for (target = pa_idxset_first(c->sinks, &idx); target; target = pa_idxset_next(c->sinks, &idx))
+ if (!sink || target != sink)
+ break;
+
+ if (target)
+ return;
+
+ pa_log_debug("Autoloading null-sink as no other sinks detected.");
+
+ u->ignore = TRUE;
+
+ t = pa_sprintf_malloc("sink_name=%s", u->sink_name);
+ u->null_module = pa_module_load(c, "module-null-sink", t);
+ pa_xfree(t);
+
+ u->ignore = FALSE;
+
+ if (!u->null_module)
+ pa_log_warn("Unable to load module-null-sink");
+}
+
+static pa_hook_result_t put_hook_callback(pa_core *c, pa_sink *sink, void* userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(c);
+ pa_assert(sink);
+ pa_assert(u);
+
+ /* This is us detecting ourselves on load... just ignore this. */
+ if (u->ignore)
+ return PA_HOOK_OK;
+
+ /* Auto-loaded null-sink not active, so ignoring newly detected sink. */
+ if (!u->null_module)
+ return PA_HOOK_OK;
+
+ /* This is us detecting ourselves on load in a different way... just ignore this too. */
+ if (sink->module == u->null_module)
+ return PA_HOOK_OK;
+
+ pa_log_info("A new sink has been discovered. Unloading null-sink.");
+
+ pa_module_unload_request(u->null_module);
+ u->null_module = NULL;
+
+ return PA_HOOK_OK;
+}
+
+static pa_hook_result_t unlink_hook_callback(pa_core *c, pa_sink *sink, void* userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(c);
+ pa_assert(sink);
+ pa_assert(u);
+
+ /* First check to see if it's our own null-sink that's been removed... */
+ if (u->null_module && sink->module == u->null_module) {
+ pa_log_debug("Autoloaded null-sink removed");
+ u->null_module = NULL;
+ return PA_HOOK_OK;
+ }
+
+ load_null_sink_if_needed(c, sink, u);
+
+ return PA_HOOK_OK;
+}
+
+int pa__init(pa_module*m) {
+ pa_modargs *ma = NULL;
+ struct userdata *u;
+
+ pa_assert(m);
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log("Failed to parse module arguments");
+ return -1;
+ }
+
+ m->userdata = u = pa_xnew(struct userdata, 1);
+ u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
+ u->put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE, (pa_hook_cb_t) put_hook_callback, u);
+ u->unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], PA_HOOK_EARLY, (pa_hook_cb_t) unlink_hook_callback, u);
+ u->null_module = NULL;
+ u->ignore = FALSE;
+
+ pa_modargs_free(ma);
+
+ load_null_sink_if_needed(m->core, NULL, u);
+
+ return 0;
+}
+
+void pa__done(pa_module*m) {
+ struct userdata *u;
+
+ pa_assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ if (u->put_slot)
+ pa_hook_slot_free(u->put_slot);
+ if (u->unlink_slot)
+ pa_hook_slot_free(u->unlink_slot);
+ if (u->null_module)
+ pa_module_unload_request(u->null_module);
+
+ pa_xfree(u->sink_name);
+ pa_xfree(u);
+}
diff --git a/src/modules/module-combine.c b/src/modules/module-combine.c
index fc8be18d..eab86531 100644
--- a/src/modules/module-combine.c
+++ b/src/modules/module-combine.c
@@ -1088,11 +1088,11 @@ int pa__init(pa_module*m) {
}
}
- u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], (pa_hook_cb_t) sink_new_hook_cb, u);
+ u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE, (pa_hook_cb_t) sink_new_hook_cb, u);
}
- u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], (pa_hook_cb_t) sink_unlink_hook_cb, u);
- u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], (pa_hook_cb_t) sink_state_changed_hook_cb, u);
+ u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], PA_HOOK_EARLY, (pa_hook_cb_t) sink_unlink_hook_cb, u);
+ u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_state_changed_hook_cb, u);
pick_master(u, NULL);
diff --git a/src/modules/module-device-restore.c b/src/modules/module-device-restore.c
index f8f2e4ba..94b089d4 100644
--- a/src/modules/module-device-restore.c
+++ b/src/modules/module-device-restore.c
@@ -282,8 +282,8 @@ int pa__init(pa_module*m) {
u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK|PA_SUBSCRIPTION_MASK_SOURCE, subscribe_callback, u);
- u->sink_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_FIXATE], (pa_hook_cb_t) sink_fixate_hook_callback, u);
- u->source_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], (pa_hook_cb_t) source_fixate_hook_callback, u);
+ u->sink_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_FIXATE], PA_HOOK_EARLY, (pa_hook_cb_t) sink_fixate_hook_callback, u);
+ u->source_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], PA_HOOK_EARLY, (pa_hook_cb_t) source_fixate_hook_callback, u);
m->userdata = u;
diff --git a/src/modules/module-null-sink.c b/src/modules/module-null-sink.c
index aff244fa..0d6a854e 100644
--- a/src/modules/module-null-sink.c
+++ b/src/modules/module-null-sink.c
@@ -59,8 +59,8 @@ PA_MODULE_USAGE(
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate> "
- "sink_name=<name of sink>"
- "channel_map=<channel map>"
+ "sink_name=<name of sink> "
+ "channel_map=<channel map> "
"description=<description for the sink>");
#define DEFAULT_SINK_NAME "null"
diff --git a/src/modules/module-position-event-sounds.c b/src/modules/module-position-event-sounds.c
index 30f0fd9f..789db240 100644
--- a/src/modules/module-position-event-sounds.c
+++ b/src/modules/module-position-event-sounds.c
@@ -137,7 +137,7 @@ int pa__init(pa_module*m) {
m->userdata = u = pa_xnew(struct userdata, 1);
u->core = m->core;
- u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
+ u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_EARLY, (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
pa_modargs_free(ma);
diff --git a/src/modules/module-rescue-streams.c b/src/modules/module-rescue-streams.c
index 7241a99f..31ae8bf6 100644
--- a/src/modules/module-rescue-streams.c
+++ b/src/modules/module-rescue-streams.c
@@ -139,8 +139,8 @@ int pa__init(pa_module*m) {
}
m->userdata = u = pa_xnew(struct userdata, 1);
- u->sink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], (pa_hook_cb_t) sink_hook_callback, NULL);
- u->source_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], (pa_hook_cb_t) source_hook_callback, NULL);
+ u->sink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) sink_hook_callback, NULL);
+ u->source_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) source_hook_callback, NULL);
pa_modargs_free(ma);
return 0;
diff --git a/src/modules/module-suspend-on-idle.c b/src/modules/module-suspend-on-idle.c
index a3985974..f50e4f50 100644
--- a/src/modules/module-suspend-on-idle.c
+++ b/src/modules/module-suspend-on-idle.c
@@ -367,21 +367,21 @@ int pa__init(pa_module*m) {
for (source = pa_idxset_first(m->core->sources, &idx); source; source = pa_idxset_next(m->core->sources, &idx))
device_new_hook_cb(m->core, PA_OBJECT(source), u);
- u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], (pa_hook_cb_t) device_new_hook_cb, u);
- u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], (pa_hook_cb_t) device_new_hook_cb, u);
- u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], (pa_hook_cb_t) device_unlink_hook_cb, u);
- u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], (pa_hook_cb_t) device_unlink_hook_cb, u);
- u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], (pa_hook_cb_t) device_state_changed_hook_cb, u);
- u->source_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], (pa_hook_cb_t) device_state_changed_hook_cb, u);
-
- u->sink_input_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], (pa_hook_cb_t) sink_input_fixate_hook_cb, u);
- u->source_output_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], (pa_hook_cb_t) source_output_fixate_hook_cb, u);
- u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], (pa_hook_cb_t) sink_input_unlink_hook_cb, u);
- u->source_output_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], (pa_hook_cb_t) source_output_unlink_hook_cb, u);
- u->sink_input_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE], (pa_hook_cb_t) sink_input_move_hook_cb, u);
- u->source_output_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE], (pa_hook_cb_t) source_output_move_hook_cb, u);
- u->sink_input_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], (pa_hook_cb_t) sink_input_state_changed_hook_cb, u);
- u->source_output_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], (pa_hook_cb_t) source_output_state_changed_hook_cb, u);
+ u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) device_new_hook_cb, u);
+ u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) device_new_hook_cb, u);
+ u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) device_unlink_hook_cb, u);
+ u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) device_unlink_hook_cb, u);
+ u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) device_state_changed_hook_cb, u);
+ u->source_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) device_state_changed_hook_cb, u);
+
+ u->sink_input_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_fixate_hook_cb, u);
+ u->source_output_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_fixate_hook_cb, u);
+ u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_unlink_hook_cb, u);
+ u->source_output_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_unlink_hook_cb, u);
+ u->sink_input_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_move_hook_cb, u);
+ u->source_output_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_move_hook_cb, u);
+ u->sink_input_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_state_changed_hook_cb, u);
+ u->source_output_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_state_changed_hook_cb, u);
pa_modargs_free(ma);
return 0;
diff --git a/src/modules/module-volume-restore.c b/src/modules/module-volume-restore.c
index 1266c2ab..4f0184aa 100644
--- a/src/modules/module-volume-restore.c
+++ b/src/modules/module-volume-restore.c
@@ -515,12 +515,12 @@ int pa__init(pa_module*m) {
u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK_INPUT|PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT, subscribe_callback, u);
if (restore_device) {
- u->sink_input_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_NEW], (pa_hook_cb_t) sink_input_new_hook_callback, u);
- u->source_output_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], (pa_hook_cb_t) source_output_new_hook_callback, u);
+ u->sink_input_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_NEW], PA_HOOK_EARLY, (pa_hook_cb_t) sink_input_new_hook_callback, u);
+ u->source_output_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], PA_HOOK_EARLY, (pa_hook_cb_t) source_output_new_hook_callback, u);
}
if (restore_volume)
- u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
+ u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_EARLY, (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
pa_modargs_free(ma);
return 0;
diff --git a/src/modules/module-zeroconf-publish.c b/src/modules/module-zeroconf-publish.c
index 6ed8e3d9..c39a51af 100644
--- a/src/modules/module-zeroconf-publish.c
+++ b/src/modules/module-zeroconf-publish.c
@@ -578,12 +578,12 @@ int pa__init(pa_module*m) {
u->services = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
- u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], (pa_hook_cb_t) device_new_or_changed_cb, u);
- u->sink_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], (pa_hook_cb_t) device_new_or_changed_cb, u);
- u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], (pa_hook_cb_t) device_unlink_cb, u);
- u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], (pa_hook_cb_t) device_new_or_changed_cb, u);
- u->source_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], (pa_hook_cb_t) device_new_or_changed_cb, u);
- u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], (pa_hook_cb_t) device_unlink_cb, u);
+ u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE, (pa_hook_cb_t) device_new_or_changed_cb, u);
+ u->sink_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED], PA_HOOK_LATE, (pa_hook_cb_t) device_new_or_changed_cb, u);
+ u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) device_unlink_cb, u);
+ u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_LATE, (pa_hook_cb_t) device_new_or_changed_cb, u);
+ u->source_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], PA_HOOK_LATE, (pa_hook_cb_t) device_new_or_changed_cb, u);
+ u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) device_unlink_cb, u);
u->main_entry_group = NULL;
diff --git a/src/pulsecore/hook-list.c b/src/pulsecore/hook-list.c
index 3a6874c4..5d306faa 100644
--- a/src/pulsecore/hook-list.c
+++ b/src/pulsecore/hook-list.c
@@ -33,8 +33,7 @@ void pa_hook_init(pa_hook *hook, void *data) {
pa_assert(hook);
PA_LLIST_HEAD_INIT(pa_hook_slot, hook->slots);
- hook->last = NULL;
- hook->n_dead = hook->firing = 0;
+ hook->n_dead = hook->n_firing = 0;
hook->data = data;
}
@@ -42,9 +41,6 @@ static void slot_free(pa_hook *hook, pa_hook_slot *slot) {
pa_assert(hook);
pa_assert(slot);
- if (hook->last == slot)
- hook->last = slot->prev;
-
PA_LLIST_REMOVE(pa_hook_slot, hook->slots, slot);
pa_xfree(slot);
@@ -52,7 +48,7 @@ static void slot_free(pa_hook *hook, pa_hook_slot *slot) {
void pa_hook_free(pa_hook *hook) {
pa_assert(hook);
- pa_assert(!hook->firing);
+ pa_assert(hook->n_firing == 0);
while (hook->slots)
slot_free(hook, hook->slots);
@@ -60,19 +56,26 @@ void pa_hook_free(pa_hook *hook) {
pa_hook_init(hook, NULL);
}
-pa_hook_slot* pa_hook_connect(pa_hook *hook, pa_hook_cb_t cb, void *data) {
- pa_hook_slot *slot;
+pa_hook_slot* pa_hook_connect(pa_hook *hook, pa_hook_priority_t prio, pa_hook_cb_t cb, void *data) {
+ pa_hook_slot *slot, *where, *prev;
pa_assert(cb);
slot = pa_xnew(pa_hook_slot, 1);
slot->hook = hook;
- slot->dead = 0;
+ slot->dead = FALSE;
slot->callback = cb;
slot->data = data;
+ slot->priority = prio;
+
+ prev = NULL;
+ for (where = hook->slots; where; where = where->next) {
+ if (prio < where->priority)
+ break;
+ prev = where;
+ }
- PA_LLIST_INSERT_AFTER(pa_hook_slot, hook->slots, hook->last, slot);
- hook->last = slot;
+ PA_LLIST_INSERT_AFTER(pa_hook_slot, hook->slots, prev, slot);
return slot;
}
@@ -81,8 +84,8 @@ void pa_hook_slot_free(pa_hook_slot *slot) {
pa_assert(slot);
pa_assert(!slot->dead);
- if (slot->hook->firing > 0) {
- slot->dead = 1;
+ if (slot->hook->n_firing > 0) {
+ slot->dead = TRUE;
slot->hook->n_dead++;
} else
slot_free(slot->hook, slot);
@@ -94,7 +97,7 @@ pa_hook_result_t pa_hook_fire(pa_hook *hook, void *data) {
pa_assert(hook);
- hook->firing ++;
+ hook->n_firing ++;
for (slot = hook->slots; slot; slot = slot->next) {
if (slot->dead)
@@ -104,7 +107,8 @@ pa_hook_result_t pa_hook_fire(pa_hook *hook, void *data) {
break;
}
- hook->firing --;
+ hook->n_firing --;
+ pa_assert(hook->n_firing >= 0);
for (slot = hook->slots; hook->n_dead > 0 && slot; slot = next) {
next = slot->next;
@@ -115,6 +119,7 @@ pa_hook_result_t pa_hook_fire(pa_hook *hook, void *data) {
}
}
+ pa_assert(hook->n_dead == 0);
+
return result;
}
-
diff --git a/src/pulsecore/hook-list.h b/src/pulsecore/hook-list.h
index c288980d..d91f6f4d 100644
--- a/src/pulsecore/hook-list.h
+++ b/src/pulsecore/hook-list.h
@@ -38,14 +38,21 @@ typedef enum pa_hook_result {
PA_HOOK_CANCEL = -1
} pa_hook_result_t;
+typedef enum pa_hook_priority {
+ PA_HOOK_EARLY = -100,
+ PA_HOOK_NORMAL = 0,
+ PA_HOOK_LATE = 100
+} pa_hook_priority_t;
+
typedef pa_hook_result_t (*pa_hook_cb_t)(
void *hook_data,
void *call_data,
void *slot_data);
struct pa_hook_slot {
- int dead;
+ pa_bool_t dead;
pa_hook *hook;
+ pa_hook_priority_t priority;
pa_hook_cb_t callback;
void *data;
PA_LLIST_FIELDS(pa_hook_slot);
@@ -53,8 +60,7 @@ struct pa_hook_slot {
struct pa_hook {
PA_LLIST_HEAD(pa_hook_slot, slots);
- pa_hook_slot *last;
- int firing, n_dead;
+ int n_firing, n_dead;
void *data;
};
@@ -62,7 +68,7 @@ struct pa_hook {
void pa_hook_init(pa_hook *hook, void *data);
void pa_hook_free(pa_hook *hook);
-pa_hook_slot* pa_hook_connect(pa_hook *hook, pa_hook_cb_t, void *data);
+pa_hook_slot* pa_hook_connect(pa_hook *hook, pa_hook_priority_t prio, pa_hook_cb_t cb, void *data);
void pa_hook_slot_free(pa_hook_slot *slot);
pa_hook_result_t pa_hook_fire(pa_hook *hook, void *data);
diff --git a/src/tests/hook-list-test.c b/src/tests/hook-list-test.c
index 8628f521..e66bb27c 100644
--- a/src/tests/hook-list-test.c
+++ b/src/tests/hook-list-test.c
@@ -7,12 +7,12 @@
#include <pulsecore/hook-list.h>
#include <pulsecore/log.h>
-static pa_hook_result_t func1(const char*hook_data, const char*call_data, const char*slot_data) {
+static pa_hook_result_t func1(const char *hook_data, const char *call_data, const char *slot_data) {
pa_log("(func1) hook=%s call=%s slot=%s", hook_data, call_data, slot_data);
return PA_HOOK_OK;
}
-static pa_hook_result_t func2(const char*hook_data, const char*call_data, const char*slot_data) {
+static pa_hook_result_t func2(const char *hook_data, const char *call_data, const char *slot_data) {
pa_log("(func2) hook=%s call=%s slot=%s", hook_data, call_data, slot_data);
return PA_HOOK_OK;
}
@@ -23,9 +23,9 @@ int main(int argc, char *argv[]) {
pa_hook_init(&hook, (void*) "hook");
- pa_hook_connect(&hook, (pa_hook_cb_t) func1, (void*) "slot1");
- slot = pa_hook_connect(&hook, (pa_hook_cb_t) func2, (void*) "slot2");
- pa_hook_connect(&hook, (pa_hook_cb_t) func1, (void*) "slot3");
+ pa_hook_connect(&hook, PA_HOOK_LATE, (pa_hook_cb_t) func1, (void*) "slot1");
+ slot = pa_hook_connect(&hook, PA_HOOK_NORMAL, (pa_hook_cb_t) func2, (void*) "slot2");
+ pa_hook_connect(&hook, PA_HOOK_NORMAL, (pa_hook_cb_t) func1, (void*) "slot3");
pa_hook_fire(&hook, (void*) "call1");
generated by cgit (git 2.34.1) at 2024-11-16 10:55:01 +0000