added synchronization class to handle mutex-operations in the most portable

    way.

1 files changed, 52 insertions, 0 deletions

diff --git a/sync.h b/sync.h
new file mode 100644
index 00000000..f2b3ae33
--- /dev/null
+++ b/sync.h
@@ -0,0 +1,52 @@
+/* Definitions syncrhonization-related stuff. In theory, that should
+ * help porting to something different from pthreads.
+ *
+ * Copyright 2007 Rainer Gerhards and Adiscon GmbH.
+ *
+ * This program 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
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ */
+
+#ifndef INCLUDED_SYNC_H
+#define INCLUDED_SYNC_H
+
+#ifdef USE_PTHREADS /* Code to compile for threading support */
+#include <pthread.h>
+
+/* SYNC_OBJ_TOOL definition must be placed in object to be synced!
+ * SYNC_OBJ_TOOL_INIT must be called upon of object construction and
+ * SUNC_OBJ_TOOL_EXIT must be called upon object destruction
+ */
+#define SYNC_OBJ_TOOL pthread_mutex_t *Sync_mut;
+#define SYNC_OBJ_TOOL_INIT(x) SyncObjInit(&((x)->Sync_mut))
+#define SYNC_OBJ_TOOL_EXIT(x) SyncObjExit(&((x)->Sync_mut))
+#define LockObj(x) lockObj((x)->Sync_mut)
+#define UnlockObj(x) unlockObj((x)->Sync_mut)
+
+void SyncObjInit(pthread_mutex_t **mut);
+void SyncObjExit(pthread_mutex_t **mut);
+extern void lockObj(pthread_mutex_t *mut);
+extern void unlockObj(pthread_mutex_t *mut);
+
+#else /* Code not to compile for threading support */
+#define SYNC_OBJ_TOOL
+#define SYNC_OBJ_TOOL_INIT
+#define SYNC_OBJ_TOOL_EXIT
+#define LockObj(x)
+#define UnlockObj(x)
+#endif
+
+#endif /* #ifndef INCLUDED_SYNC_H */