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core: Support memfd transport; bump protocol version

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Now that all layers in the stack support memfd blocks, add memfd
support for the daemon's global core mempool. Also introduce
"enable-memfd=" daemon argument and configuration option.

For now, memfd support is an opt-in feature to be activated only
when daemon's enable-memfd= is set to yes.

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
This commit is contained in:
Ahmed S. Darwish 2016-04-15 23:07:36 +02:00 • committed by Arun Raghavan
parent b1d47d60fc
commit d2a6afcab3
13 changed files with 122 additions and 24 deletions
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13
src/daemon/cmdline.c
View file

@ -63,6 +63,7 @@ enum {
ARG_CHECK,
ARG_NO_CPU_LIMIT,
ARG_DISABLE_SHM,
ARG_ENABLE_MEMFD,
ARG_DUMP_RESAMPLE_METHODS,
ARG_SYSTEM,
ARG_CLEANUP_SHM,
@ -100,6 +101,7 @@ static const struct option long_options[] = {
{"system", 2, 0, ARG_SYSTEM},
{"no-cpu-limit", 2, 0, ARG_NO_CPU_LIMIT},
{"disable-shm", 2, 0, ARG_DISABLE_SHM},
{"enable-memfd", 2, 0, ARG_ENABLE_MEMFD},
{"dump-resample-methods", 2, 0, ARG_DUMP_RESAMPLE_METHODS},
{"cleanup-shm", 2, 0, ARG_CLEANUP_SHM},
{NULL, 0, 0, 0}
@ -152,7 +154,8 @@ void pa_cmdline_help(const char *argv0) {
" --use-pid-file[=BOOL] Create a PID file\n"
" --no-cpu-limit[=BOOL] Do not install CPU load limiter on\n"
" platforms that support it.\n"
" --disable-shm[=BOOL] Disable shared memory support.\n\n"
" --disable-shm[=BOOL] Disable shared memory support.\n"
" --enable-memfd[=BOOL] Enable memfd shared memory support.\n\n"
"STARTUP SCRIPT:\n"
" -L, --load=\"MODULE ARGUMENTS\" Load the specified plugin module with\n"
@ -389,6 +392,14 @@ int pa_cmdline_parse(pa_daemon_conf *conf, int argc, char *const argv [], int *d
conf->disable_shm = !!b;
break;
case ARG_ENABLE_MEMFD:
if ((b = optarg ? pa_parse_boolean(optarg) : 1) < 0) {
pa_log(_("--enable-memfd expects boolean argument"));
goto fail;
}
conf->disable_memfd = !b;
break;
default:
goto fail;
}