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cli-command: don't exit on "module already loaded" errors

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Some modules may only be loaded once, and trying to load them
twice from default.pa makes PulseAudio startup fail. While that could
be considered a user error, it's nicer to not be so strict. It's not
necessarily easy to figure what went wrong, if for example the user
plays with RAOP and adds module-raop-discover to default.pa, which first
works fine, but suddenly stops working when the user at some point
enables RAOP support in paprefs. Enabling RAOP in paprefs makes
module-gconf load the module too, so the module gets loaded twice.

This patch adds a way to differentiate module load errors, and
make cli-command ignore the error when the module is already
loaded.
This commit is contained in:
Colin Leroy 2017-08-26 11:21:15 +02:00 • committed by Tanu Kaskinen
parent 1a66715320
commit f0dfddead3
23 changed files with 62 additions and 36 deletions
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8
src/daemon/main.c
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@ -111,19 +111,21 @@ int deny_severity = LOG_WARNING;
int __padsp_disabled__ = 7;
#endif
static void signal_callback(pa_mainloop_api*m, pa_signal_event *e, int sig, void *userdata) {
static void signal_callback(pa_mainloop_api* m, pa_signal_event *e, int sig, void *userdata) {
pa_module *module = NULL;
pa_log_info("Got signal %s.", pa_sig2str(sig));
switch (sig) {
#ifdef SIGUSR1
case SIGUSR1:
pa_module_load(userdata, "module-cli", NULL);
pa_module_load(&module, userdata, "module-cli", NULL);
break;
#endif
#ifdef SIGUSR2
case SIGUSR2:
pa_module_load(userdata, "module-cli-protocol-unix", NULL);
pa_module_load(&module, userdata, "module-cli-protocol-unix", NULL);
break;
#endif