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add new function pa_memblock_ref_is_one()

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1729 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-08-30 22:42:02 +00:00
parent c2e4328c53
commit 687f1f15fc
2 changed files with 13 additions and 0 deletions
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12
src/pulsecore/memblock.c
View file

@ -384,6 +384,18 @@ int pa_memblock_is_read_only(pa_memblock *b) {
return b->read_only && PA_REFCNT_VALUE(b) == 1;
}
/* No lock necessary */
int pa_memblock_ref_is_one(pa_memblock *b) {
int r;
pa_assert(b);
r = PA_REFCNT_VALUE(b);
pa_assert(r > 0);
return r == 1;
}
/* No lock necessary */
void* pa_memblock_acquire(pa_memblock *b) {
pa_assert(b);

1
src/pulsecore/memblock.h
View file

@ -107,6 +107,7 @@ manually if called from more than one thread at the same time. */
void pa_memblock_unref_fixed(pa_memblock*b);
int pa_memblock_is_read_only(pa_memblock *b);
int pa_memblock_ref_is_one(pa_memblock *b);
void* pa_memblock_acquire(pa_memblock *b);
void pa_memblock_release(pa_memblock *b);
size_t pa_memblock_get_length(pa_memblock *b);