From 769d0f414ec680c9d0802750dfdbc6451c4e5d02 Mon Sep 17 00:00:00 2001
From: vemax78 <devnull@localhost>
Date: Sat, 2 Nov 2013 19:04:56 +0100
Subject: [PATCH] Add support for rwlock

---
 build/ac/Makefile.am       |  1 +
 src/common/capwap_rwlock.c | 45 ++++++++++++++++++++++++++++++++++++++
 src/common/capwap_rwlock.h | 20 +++++++++++++++++
 3 files changed, 66 insertions(+)
 create mode 100644 src/common/capwap_rwlock.c
 create mode 100644 src/common/capwap_rwlock.h

diff --git a/build/ac/Makefile.am b/build/ac/Makefile.am
index d9845e2..c264ffd 100755
--- a/build/ac/Makefile.am
+++ b/build/ac/Makefile.am
@@ -44,6 +44,7 @@ ac_SOURCES = \
 	$(capwap_SOURCES) \
 	$(top_srcdir)/src/common/capwap_event.c \
 	$(top_srcdir)/src/common/capwap_lock.c \
+	$(top_srcdir)/src/common/capwap_rwlock.c \
 	$(top_srcdir)/src/common/capwap_socket.c \
 	$(top_srcdir)/src/ac/ac.c \
 	$(top_srcdir)/src/ac/ac_backend.c \
diff --git a/src/common/capwap_rwlock.c b/src/common/capwap_rwlock.c
new file mode 100644
index 0000000..2d8c2ec
--- /dev/null
+++ b/src/common/capwap_rwlock.c
@@ -0,0 +1,45 @@
+#include "capwap.h"
+#include "capwap_rwlock.h"
+
+#ifndef CAPWAP_MULTITHREADING_ENABLE
+#error "Warning: multithreading is disabled\n"
+#endif
+
+/* */
+int capwap_rwlock_init(capwap_rwlock_t* lock) {
+	ASSERT(lock != NULL);
+
+	if (pthread_rwlock_init(&lock->rwlock, NULL)) {
+		return 0;
+	}
+
+	return 1;
+}
+
+/* */
+void capwap_rwlock_destroy(capwap_rwlock_t* lock) {
+	ASSERT(lock != NULL);
+
+	pthread_rwlock_destroy(&lock->rwlock);
+}
+
+/* */
+void capwap_rwlock_rdlock(capwap_rwlock_t* lock) {
+	ASSERT(lock != NULL);
+
+	pthread_rwlock_rdlock(&lock->rwlock);
+}
+
+/* */
+void capwap_rwlock_wrlock(capwap_rwlock_t* lock) {
+	ASSERT(lock != NULL);
+
+	pthread_rwlock_wrlock(&lock->rwlock);
+}
+
+/* */
+void capwap_rwlock_exit(capwap_rwlock_t* lock) {
+	ASSERT(lock != NULL);
+
+	pthread_rwlock_unlock(&lock->rwlock);
+}
diff --git a/src/common/capwap_rwlock.h b/src/common/capwap_rwlock.h
new file mode 100644
index 0000000..5b626b1
--- /dev/null
+++ b/src/common/capwap_rwlock.h
@@ -0,0 +1,20 @@
+#ifndef __CAPWAP_RWLOCK_HEADER__
+#define __CAPWAP_RWLOCK_HEADER__
+
+#ifdef CAPWAP_MULTITHREADING_ENABLE
+
+#include <pthread.h>
+
+typedef struct {
+	pthread_rwlock_t rwlock;
+} capwap_rwlock_t;
+
+int capwap_rwlock_init(capwap_rwlock_t* lock);
+void capwap_rwlock_destroy(capwap_rwlock_t* lock);
+void capwap_rwlock_rdlock(capwap_rwlock_t* lock);
+void capwap_rwlock_wrlock(capwap_rwlock_t* lock);
+void capwap_rwlock_exit(capwap_rwlock_t* lock);
+
+#endif /* CAPWAP_MULTITHREADING_ENABLE */
+
+#endif /* __CAPWAP_RWLOCK_HEADER__ */