signals: Make signal_name() thread-safe.

[sliver-openvswitch.git] / lib / signals.h

diff --git a/lib/signals.h b/lib/signals.h
index 641bcbb..015d329 100644 (file)
--- a/lib/signals.h
+++ b/lib/signals.h
@@ -19,6 +19,7 @@
 
 #include <signal.h>
 #include <stdbool.h>
+#include "type-props.h"
 
 void signal_init(void);
 
@@ -28,7 +29,8 @@ void signal_unregister(struct signal *);
 bool signal_poll(struct signal *);
 void signal_wait(struct signal *);
 
-const char *signal_name(int signum);
+enum { SIGNAL_NAME_BUFSIZE = 7 + INT_STRLEN(int) + 1 };
+const char *signal_name(int signum, char *namebuf, size_t bufsize);
 
 void xsigaction(int signum, const struct sigaction *, struct sigaction *old);
 void xpthread_sigmask(int how, const sigset_t *, sigset_t *old);