1 files changed, 62 insertions, 1 deletions
diff --git a/src/libstrongswan/threading/rwlock.c b/src/libstrongswan/threading/rwlock.c
index bf59f50f1..ee9fb10be 100644
--- a/src/libstrongswan/threading/rwlock.c
+++ b/src/libstrongswan/threading/rwlock.c
@@ -17,13 +17,74 @@
 #define _GNU_SOURCE
 #include <pthread.h>
 
-#include <threading.h>
 #include <library.h>
 #include <debug.h>
 
 #include "rwlock.h"
+#include "condvar.h"
+#include "mutex.h"
 #include "lock_profiler.h"
 
+typedef struct private_rwlock_t private_rwlock_t;
+
+/**
+ * private data of rwlock
+ */
+struct private_rwlock_t {
+
+	/**
+	 * public functions
+	 */
+	rwlock_t public;
+
+#ifdef HAVE_PTHREAD_RWLOCK_INIT
+
+	/**
+	 * wrapped pthread rwlock
+	 */
+	pthread_rwlock_t rwlock;
+
+#else
+
+	/**
+	 * mutex to emulate a native rwlock
+	 */
+	mutex_t *mutex;
+
+	/**
+	 * condvar to handle writers
+	 */
+	condvar_t *writers;
+
+	/**
+	 * condvar to handle readers
+	 */
+	condvar_t *readers;
+
+	/**
+	 * number of waiting writers
+	 */
+	u_int waiting_writers;
+
+	/**
+	 * number of readers holding the lock
+	 */
+	u_int reader_count;
+
+	/**
+	 * current writer thread, if any
+	 */
+	pthread_t writer;
+
+#endif /* HAVE_PTHREAD_RWLOCK_INIT */
+
+	/**
+	 * profiling info, if enabled
+	 */
+	lock_profile_t profile;
+};
+
+
 #ifdef HAVE_PTHREAD_RWLOCK_INIT
 
 /**