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authorQball Cow <qball@qballcow.nl>2005-11-18 12:09:05 +0000
committerQball Cow <qball@qballcow.nl>2005-11-18 12:09:05 +0000
commit4b00c62587dbe0ce131992dcd574ffe323cffa5c (patch)
tree231924d4c2fb4eb916c3a02ed1fc505e42081e58 /src/sig_handlers.c
parent32e5f4ca2b43c310ff6639320dec2dd52f159f50 (diff)
downloadmpd-4b00c62587dbe0ce131992dcd574ffe323cffa5c.tar.gz
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DJWLindenaar's fix race condition and some memory leaks patch
git-svn-id: https://svn.musicpd.org/mpd/trunk@3681 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to '')
-rw-r--r--src/sig_handlers.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/sig_handlers.c b/src/sig_handlers.c
index 364636e7c..567a39133 100644
--- a/src/sig_handlers.c
+++ b/src/sig_handlers.c
@@ -56,7 +56,17 @@ int masterHandlePendingSignals() {
}
int handlePendingSignals() {
- if(signal_is_pending(SIGINT) || signal_is_pending(SIGTERM)) {
+ /* this SIGUSR1 signal comes before the KILL signals, because there if the process is
+ * looping, waiting for this signal, it will not respond to the KILL signal. This might be
+ * better implemented by using bit-wise defines and or'ing of the COMMAND_FOO as return.
+ */
+ if (signal_is_pending(SIGUSR1)) {
+ signal_clear(SIGUSR1);
+ DEBUG("The master process is ready to receive signals\n");
+ return COMMAND_MASTER_READY;
+ }
+
+ if(signal_is_pending(SIGINT) || signal_is_pending(SIGTERM)) {
DEBUG("main process got SIGINT or SIGTERM, exiting\n");
return COMMAND_RETURN_KILL;
}
@@ -135,6 +145,7 @@ void initSigHandlers() {
while(sigaction(SIGPIPE,&sa,NULL)<0 && errno==EINTR);
sa.sa_handler = chldSigHandler;
while(sigaction(SIGCHLD,&sa,NULL)<0 && errno==EINTR);
+ signal_handle(SIGUSR2);
signal_handle(SIGUSR1);
signal_handle(SIGINT);
signal_handle(SIGTERM);