Adding upstream version 8.4.4.upstream/8.4.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/lib/sigevent.h b/lib/sigevent.h
new file mode 100644
index 0000000..dd1ee99
--- /dev/null
+++ b/lib/sigevent.h
@@ -0,0 +1,67 @@
+/*
+ * 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 _FRR_SIGNAL_H
+#define _FRR_SIGNAL_H
+
+#include <thread.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FRR_SIGNAL_TIMER_INTERVAL 2L
+
+struct frr_signal_t {
+	int signal;	    /* signal number    */
+	void (*handler)(void); /* handler to call  */
+
+	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 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 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 frr_sigevent_process(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FRR_SIGNAL_H */