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context: add property to forcefully disable shared memory channels

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If application wants last bits of virtual memory, allow it to forcefully disable
shared memory communication channels via PA_PROP_CONTEXT_FORCE_DISABLE_SHM=yes

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/448>
This commit is contained in:
Igor V. Kovalenko 2020-12-29 00:03:41 +03:00 • committed by PulseAudio Marge Bot
parent 4874f8a607
commit 3ecea410d7
2 changed files with 14 additions and 0 deletions
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11
src/pulse/context.c
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@ -128,6 +128,7 @@ static void reset_callbacks(pa_context *c) {
pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *name, const pa_proplist *p) {
pa_context *c;
pa_mem_type_t type;
const char *force_disable_shm_str;
pa_assert(mainloop);
@ -173,6 +174,16 @@ pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *
c->conf = pa_client_conf_new();
pa_client_conf_load(c->conf, true, true);
force_disable_shm_str = pa_proplist_gets(c->proplist, PA_PROP_CONTEXT_FORCE_DISABLE_SHM);
if (force_disable_shm_str) {
int b = pa_parse_boolean(force_disable_shm_str);
if (b < 0) {
pa_log_warn("Ignored invalid value for '%s' property: %s", PA_PROP_CONTEXT_FORCE_DISABLE_SHM, force_disable_shm_str);
} else if (b) {
c->conf->disable_shm = true;
}
}
c->srb_template.readfd = -1;
c->srb_template.writefd = -1;