diff options
author | Lennart Poettering <lennart@poettering.net> | 2007-09-02 20:37:55 +0000 |
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committer | Lennart Poettering <lennart@poettering.net> | 2007-09-02 20:37:55 +0000 |
commit | 7dbabc47bbfe517cd85e8b25b360413e511b3aec (patch) | |
tree | 5feaa0753b7b8920a83989e084010ed78e0e808c | |
parent | f36ca797160c7eddaacf5cc18d366a74dbee229a (diff) |
add new pa_memchunk_will_need() API, similar to pa_memblock_will_need()
git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1747 fefdeb5f-60dc-0310-8127-8f9354f1896f
-rw-r--r-- | src/pulsecore/memchunk.c | 19 | ||||
-rw-r--r-- | src/pulsecore/memchunk.h | 3 |
2 files changed, 22 insertions, 0 deletions
diff --git a/src/pulsecore/memchunk.c b/src/pulsecore/memchunk.c index 20ddb11d..319767f1 100644 --- a/src/pulsecore/memchunk.c +++ b/src/pulsecore/memchunk.c @@ -29,8 +29,11 @@ #include <stdlib.h> #include <assert.h> #include <string.h> +#include <errno.h> #include <pulse/xmalloc.h> +#include <pulsecore/macro.h> +#include <pulsecore/core-util.h> #include "memchunk.h" @@ -72,3 +75,19 @@ pa_memchunk* pa_memchunk_reset(pa_memchunk *c) { return c; } + +pa_memchunk *pa_memchunk_will_need(pa_memchunk *c) { + void *p; + + pa_assert(c); + pa_assert(c->memblock); + + /* A version of pa_memblock_will_need() that works on memchunks + * instead of memblocks */ + + p = (uint8_t*) pa_memblock_acquire(c->memblock) + c->index; + pa_will_need(p, c->length); + pa_memblock_release(c->memblock); + + return c; +} diff --git a/src/pulsecore/memchunk.h b/src/pulsecore/memchunk.h index 10cab2b9..17e5f75f 100644 --- a/src/pulsecore/memchunk.h +++ b/src/pulsecore/memchunk.h @@ -44,4 +44,7 @@ pa_memchunk* pa_memchunk_make_writable(pa_memchunk *c, size_t min); * but sets all members to zero. */ pa_memchunk* pa_memchunk_reset(pa_memchunk *c); +/* Map a memory chunk back into memory if it was swapped out */ +pa_memchunk *pa_memchunk_will_need(pa_memchunk *c); + #endif |