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when doing signal functions (like sigaction) make sure it wasn't interrupted by a signal (errno==EINTR)

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git-svn-id: https://svn.musicpd.org/mpd/trunk@729 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes
2004-04-13 16:46:11 +00:00
parent 00c25b772e
commit acf0e147c2
6 changed files with 31 additions and 14 deletions
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8
src/sig_handlers.c
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@@ -67,9 +67,9 @@ void initSigHandlers() {
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
sa.sa_handler = SIG_IGN;
sigaction(SIGPIPE,&sa,NULL);
while(sigaction(SIGPIPE,&sa,NULL)<0 && errno==EINTR);
sa.sa_handler = chldSigHandler;
sigaction(SIGCHLD,&sa,NULL);
while(sigaction(SIGCHLD,&sa,NULL)<0 && errno==EINTR);
signal_handle(SIGUSR1);
signal_handle(SIGINT);
signal_handle(SIGTERM);
@@ -90,7 +90,7 @@ void blockSignals() {
sigaddset(&sset,SIGCHLD);
sigaddset(&sset,SIGUSR1);
sigaddset(&sset,SIGHUP);
sigprocmask(SIG_BLOCK,&sset,NULL);
while(sigprocmask(SIG_BLOCK,&sset,NULL)<0 && errno==EINTR);
}
void unblockSignals() {
@@ -100,5 +100,5 @@ void unblockSignals() {
sigaddset(&sset,SIGCHLD);
sigaddset(&sset,SIGUSR1);
sigaddset(&sset,SIGHUP);
sigprocmask(SIG_UNBLOCK,&sset,NULL);
while(sigprocmask(SIG_UNBLOCK,&sset,NULL)<0 && errno==EINTR);
}