Merge pull request #12798 from donaldsharp/rib_match_multicast

[mirror_frr.git] / lib / sigevent.h

diff --git a/lib/sigevent.h b/lib/sigevent.h
index 08eb1ca412d90be39a93c3ba15da113e43d002fe..e58b9a70c02b8fa359e316ac9015fbe20ee378a0 100644 (file)
--- a/lib/sigevent.h
+++ b/lib/sigevent.h
@@ -1,51 +1,52 @@
-/* 
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
  * Quagga Signal handling header.
  *
  * Copyright (C) 2004 Paul Jakma.
- *
- * This file is part of Quagga.
- *
- * Quagga is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * Quagga is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; see the file COPYING; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef _QUAGGA_SIGNAL_H
-#define _QUAGGA_SIGNAL_H
+#ifndef _FRR_SIGNAL_H
+#define _FRR_SIGNAL_H
 
 #include <thread.h>
 
-#define QUAGGA_SIGNAL_TIMER_INTERVAL 2L
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FRR_SIGNAL_TIMER_INTERVAL 2L
 
-struct quagga_signal_t
-{
-  int signal;                     /* signal number    */
-  void (*handler) (void);         /* handler to call  */
+struct frr_signal_t {
+       int signal;         /* signal number    */
+       void (*handler)(void); /* handler to call  */
 
-  volatile sig_atomic_t caught;   /* private member   */
+       volatile sig_atomic_t caught; /* private member   */
 };
 
 /* initialise sigevent system
  * takes:
  * - pointer to valid struct thread_master
  * - number of elements in passed in signals array
- * - array of quagga_signal_t's describing signals to handle
+ * - array of frr_signal_t's describing signals to handle
  *   and handlers to use for each signal
  */
-extern void signal_init (struct thread_master *m, int sigc, 
-                         struct quagga_signal_t *signals);
+extern void signal_init(struct thread_master *m, int sigc,
+                       struct frr_signal_t *signals);
+
+
+/*
+ * Check whether any signals have been received and are pending. This is done
+ * with the application's key signals blocked. The complete set of signals
+ * is returned in 'setp', so the caller can restore them when appropriate.
+ * If there are pending signals, returns 'true', 'false' otherwise.
+ */
+bool frr_sigevent_check(sigset_t *setp);
 
 /* check whether there are signals to handle, process any found */
-extern int quagga_sigevent_process (void);
+extern int frr_sigevent_process(void);
+
+#ifdef __cplusplus
+}
+#endif
 
-#endif /* _QUAGGA_SIGNAL_H */
+#endif /* _FRR_SIGNAL_H */