From e5953fb0ddf8c4a84c815f72755261e7dadbf00e Mon Sep 17 00:00:00 2001 From: Arun Raghavan Date: Fri, 16 Nov 2012 23:09:15 +0530 Subject: modules: Micro-optimisation for rewind_requested paths Since some devices can be chatty with regards to how often they return from poll(), this adds a PA_UNLIKELY() to all the the rewind_requested checks in our sink modules to make the general case (no rewind was requested) the fast path. --- src/modules/bluetooth/module-bluetooth-device.c | 2 +- src/modules/jack/module-jack-sink.c | 2 +- src/modules/macosx/module-coreaudio-device.c | 2 +- src/modules/module-combine-sink.c | 2 +- src/modules/module-esound-sink.c | 2 +- src/modules/module-null-sink.c | 2 +- src/modules/module-pipe-sink.c | 2 +- src/modules/module-solaris.c | 2 +- src/modules/module-waveout.c | 2 +- src/modules/oss/module-oss.c | 2 +- src/modules/raop/module-raop-sink.c | 2 +- src/modules/xen/module-xenpv-sink.c | 2 +- 12 files changed, 12 insertions(+), 12 deletions(-) diff --git a/src/modules/bluetooth/module-bluetooth-device.c b/src/modules/bluetooth/module-bluetooth-device.c index 8c2efa49..8a9d39f7 100644 --- a/src/modules/bluetooth/module-bluetooth-device.c +++ b/src/modules/bluetooth/module-bluetooth-device.c @@ -1081,7 +1081,7 @@ static void thread_func(void *userdata) { if (u->sink && PA_SINK_IS_LINKED(u->sink->thread_info.state)) { - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); if (pollfd) { diff --git a/src/modules/jack/module-jack-sink.c b/src/modules/jack/module-jack-sink.c index 028c86f6..1e34abd4 100644 --- a/src/modules/jack/module-jack-sink.c +++ b/src/modules/jack/module-jack-sink.c @@ -229,7 +229,7 @@ static void thread_func(void *userdata) { for (;;) { int ret; - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0) diff --git a/src/modules/macosx/module-coreaudio-device.c b/src/modules/macosx/module-coreaudio-device.c index 6d36a6aa..ea88ebdf 100644 --- a/src/modules/macosx/module-coreaudio-device.c +++ b/src/modules/macosx/module-coreaudio-device.c @@ -665,7 +665,7 @@ static void thread_func(void *userdata) { int ret; PA_LLIST_FOREACH(ca_sink, u->sinks) { - if (ca_sink->pa_sink->thread_info.rewind_requested) + if (PA_UNLIKELY(ca_sink->pa_sink->thread_info.rewind_requested)) pa_sink_process_rewind(ca_sink->pa_sink, 0); } diff --git a/src/modules/module-combine-sink.c b/src/modules/module-combine-sink.c index b778019d..488f69fc 100644 --- a/src/modules/module-combine-sink.c +++ b/src/modules/module-combine-sink.c @@ -305,7 +305,7 @@ static void thread_func(void *userdata) { for (;;) { int ret; - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); /* If no outputs are connected, render some data and drop it immediately. */ diff --git a/src/modules/module-esound-sink.c b/src/modules/module-esound-sink.c index 54fed658..40ef5bc1 100644 --- a/src/modules/module-esound-sink.c +++ b/src/modules/module-esound-sink.c @@ -213,7 +213,7 @@ static void thread_func(void *userdata) { for (;;) { int ret; - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); if (u->rtpoll_item) { diff --git a/src/modules/module-null-sink.c b/src/modules/module-null-sink.c index d6ea43fd..10bc67f9 100644 --- a/src/modules/module-null-sink.c +++ b/src/modules/module-null-sink.c @@ -213,7 +213,7 @@ static void thread_func(void *userdata) { if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) now = pa_rtclock_now(); - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) process_rewind(u, now); /* Render some data and drop it immediately */ diff --git a/src/modules/module-pipe-sink.c b/src/modules/module-pipe-sink.c index 1fcea171..54dceb4e 100644 --- a/src/modules/module-pipe-sink.c +++ b/src/modules/module-pipe-sink.c @@ -180,7 +180,7 @@ static void thread_func(void *userdata) { pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); /* Render some data and write it to the fifo */ diff --git a/src/modules/module-solaris.c b/src/modules/module-solaris.c index aaf7189f..753c1a1f 100644 --- a/src/modules/module-solaris.c +++ b/src/modules/module-solaris.c @@ -628,7 +628,7 @@ static void thread_func(void *userdata) { for (;;) { /* Render some data and write it to the dsp */ - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) process_rewind(u); if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) { diff --git a/src/modules/module-waveout.c b/src/modules/module-waveout.c index d02bb6b5..39c2ab4b 100644 --- a/src/modules/module-waveout.c +++ b/src/modules/module-waveout.c @@ -256,7 +256,7 @@ static void thread_func(void *userdata) { pa_bool_t need_timer = FALSE; if (u->sink) { - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) { diff --git a/src/modules/oss/module-oss.c b/src/modules/oss/module-oss.c index 3d794125..c4746ca9 100644 --- a/src/modules/oss/module-oss.c +++ b/src/modules/oss/module-oss.c @@ -891,7 +891,7 @@ static void thread_func(void *userdata) { /* pa_log("loop"); */ - if (u->sink && u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink && u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); /* Render some data and write it to the dsp */ diff --git a/src/modules/raop/module-raop-sink.c b/src/modules/raop/module-raop-sink.c index 2952216d..1816fee9 100644 --- a/src/modules/raop/module-raop-sink.c +++ b/src/modules/raop/module-raop-sink.c @@ -327,7 +327,7 @@ static void thread_func(void *userdata) { for (;;) { int ret; - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); if (u->rtpoll_item) { diff --git a/src/modules/xen/module-xenpv-sink.c b/src/modules/xen/module-xenpv-sink.c index a5756e54..6f82ff41 100644 --- a/src/modules/xen/module-xenpv-sink.c +++ b/src/modules/xen/module-xenpv-sink.c @@ -338,7 +338,7 @@ static void thread_func(void *userdata) { pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); - if (u->sink->thread_info.rewind_requested) + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); /* Render some data and write it to the fifo */ -- cgit v1.2.3