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speed up semaphore allocation with an flist

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1909 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-09-28 00:29:51 +00:00
parent 008c709900
commit 107f12ae3c
1 changed files with 14 additions and 7 deletions
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21
src/pulsecore/asyncmsgq.c
View file

@ -40,6 +40,7 @@
#include "asyncmsgq.h"
PA_STATIC_FLIST_DECLARE(asyncmsgq, 0, pa_xfree);
PA_STATIC_FLIST_DECLARE(semaphores, 0, (void(*)(void*)) pa_semaphore_free);
struct asyncmsgq_item {
int code;
@ -154,7 +155,11 @@ int pa_asyncmsgq_send(pa_asyncmsgq *a, pa_msgobject *object, int code, const voi
i.memchunk = *chunk;
} else
pa_memchunk_reset(&i.memchunk);
pa_assert_se(i.semaphore = pa_semaphore_new(0));
if (!(i.semaphore = pa_flist_pop(PA_STATIC_FLIST_GET(semaphores))))
i.semaphore = pa_semaphore_new(0);
pa_assert_se(i.semaphore);
/* Thus mutex makes the queue multiple-writer safe. This lock is only used on the writing side */
pa_mutex_lock(a->mutex);
@ -162,7 +167,9 @@ int pa_asyncmsgq_send(pa_asyncmsgq *a, pa_msgobject *object, int code, const voi
pa_mutex_unlock(a->mutex);
pa_semaphore_wait(i.semaphore);
pa_semaphore_free(i.semaphore);
if (pa_flist_push(PA_STATIC_FLIST_GET(semaphores), i.semaphore) < 0)
pa_semaphore_free(i.semaphore);
return i.ret;
}
@ -192,7 +199,7 @@ int pa_asyncmsgq_get(pa_asyncmsgq *a, pa_msgobject **object, int *code, void **u
*chunk = a->current->memchunk;
/* pa_log_debug("Get q=%p object=%p (%s) code=%i data=%p chunk.length=%lu", (void*) a, (void*) a->current->object, a->current->object ? a->current->object->parent.type_name : NULL, a->current->code, (void*) a->current->userdata, (unsigned long) a->current->memchunk.length); */
return 0;
}
@ -244,7 +251,7 @@ int pa_asyncmsgq_wait_for(pa_asyncmsgq *a, int code) {
} while (c != code);
pa_asyncmsgq_unref(a);
return 0;
}
@ -257,15 +264,15 @@ int pa_asyncmsgq_process_one(pa_asyncmsgq *a) {
int ret;
pa_assert(PA_REFCNT_VALUE(a) > 0);
if (pa_asyncmsgq_get(a, &object, &code, &data, &offset, &chunk, 0) < 0)
return 0;
pa_asyncmsgq_ref(a);
ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
pa_asyncmsgq_done(a, ret);
pa_asyncmsgq_unref(a);
return 1;
}