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core: Add a second rw mempool

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To keep the data and the ringbuffer separate, let's add another
mempool just for the ringbuffer(s). That way, the client can open
the ringbuffer shm file in rw mode and keep the data in ro mode.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
This commit is contained in:
David Henningsson 2014-04-25 14:20:57 +02:00
parent 073128fbc8
commit b06e616525
2 changed files with 16 additions and 3 deletions
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14
src/pulsecore/core.c
View file

@ -127,6 +127,11 @@ pa_core* pa_core_new(pa_mainloop_api *m, bool shared, size_t shm_size) {
c->mempool = pool;
pa_silence_cache_init(&c->silence_cache);
if (shared && !(c->rw_mempool = pa_mempool_new(shared, shm_size)))
pa_log_warn("failed to allocate shared writable memory pool.");
if (c->rw_mempool)
pa_mempool_set_is_remote_writable(c->rw_mempool, true);
c->exit_event = NULL;
c->exit_idle_time = -1;
@ -208,6 +213,8 @@ static void core_free(pa_object *o) {
pa_assert(!c->default_sink);
pa_silence_cache_done(&c->silence_cache);
if (c->rw_mempool)
pa_mempool_free(c->rw_mempool);
pa_mempool_free(c->mempool);
for (j = 0; j < PA_CORE_HOOK_MAX; j++)
@ -254,7 +261,6 @@ void pa_core_maybe_vacuum(pa_core *c) {
if (pa_idxset_isempty(c->sink_inputs) && pa_idxset_isempty(c->source_outputs)) {
pa_log_debug("Hmm, no streams around, trying to vacuum.");
pa_mempool_vacuum(c->mempool);
} else {
pa_sink *si;
pa_source *so;
@ -271,8 +277,12 @@ void pa_core_maybe_vacuum(pa_core *c) {
return;
pa_log_info("All sinks and sources are suspended, vacuuming memory");
pa_mempool_vacuum(c->mempool);
}
pa_mempool_vacuum(c->mempool);
if (c->rw_mempool)
pa_mempool_vacuum(c->rw_mempool);
}
pa_time_event* pa_core_rttime_new(pa_core *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata) {