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-rw-r--r--src/server/signal.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/server/signal.c b/src/server/signal.c
index f0988b9..3b7d50b 100644
--- a/src/server/signal.c
+++ b/src/server/signal.c
@@ -12,6 +12,7 @@ int signal_new()
int signal_call(int signalFd)
{
+ if ( signalFd < 0 ) return 0;
static uint64_t one = 1;
return write( signalFd, &one, sizeof one ) == sizeof one;
}