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memblock, pstream: Allow send/receive of remote writable memblocks

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The shared ringbuffer memblock must be writable by both sides.
This makes it possible to send such a memblock over a pstream without
the "both sides writable" information getting lost.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
This commit is contained in:
David Henningsson 2014-04-25 15:30:41 +02:00
parent 613177919f
commit 710c4b39af
3 changed files with 62 additions and 16 deletions
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6
src/pulsecore/memblock.h
View file

@ -104,6 +104,7 @@ function is not multiple caller safe, i.e. needs to be locked
manually if called from more than one thread at the same time. */
void pa_memblock_unref_fixed(pa_memblock*b);
bool pa_memblock_is_ours(pa_memblock *b);
bool pa_memblock_is_read_only(pa_memblock *b);
bool pa_memblock_is_silence(pa_memblock *b);
bool pa_memblock_ref_is_one(pa_memblock *b);
@ -125,12 +126,15 @@ const pa_mempool_stat* pa_mempool_get_stat(pa_mempool *p);
void pa_mempool_vacuum(pa_mempool *p);
int pa_mempool_get_shm_id(pa_mempool *p, uint32_t *id);
bool pa_mempool_is_shared(pa_mempool *p);
bool pa_mempool_is_remote_writable(pa_mempool *p);
void pa_mempool_set_is_remote_writable(pa_mempool *p, bool writable);
size_t pa_mempool_block_size_max(pa_mempool *p);
/* For receiving blocks from other nodes */
pa_memimport* pa_memimport_new(pa_mempool *p, pa_memimport_release_cb_t cb, void *userdata);
void pa_memimport_free(pa_memimport *i);
pa_memblock* pa_memimport_get(pa_memimport *i, uint32_t block_id, uint32_t shm_id, size_t offset, size_t size);
pa_memblock* pa_memimport_get(pa_memimport *i, uint32_t block_id, uint32_t shm_id,
size_t offset, size_t size, bool writable);
int pa_memimport_process_revoke(pa_memimport *i, uint32_t block_id);
/* For sending blocks to other nodes */