1 files changed, 84 insertions, 0 deletions
diff --git a/src/defrag-queue.h b/src/defrag-queue.h
new file mode 100644
index 0000000..63a58d0
--- /dev/null
+++ b/src/defrag-queue.h
@@ -0,0 +1,84 @@
+/* Copyright (C) 2007-2012 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * 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
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Victor Julien <victor@inliniac.net>
+ */
+
+#ifndef __DEFRAG_QUEUE_H__
+#define __DEFRAG_QUEUE_H__
+
+#include "suricata-common.h"
+#include "defrag.h"
+
+/** Spinlocks or Mutex for the defrag tracker queues. */
+//#define DQLOCK_SPIN
+#define DQLOCK_MUTEX
+
+#ifdef DQLOCK_SPIN
+    #ifdef DQLOCK_MUTEX
+        #error Cannot enable both DQLOCK_SPIN and DQLOCK_MUTEX
+    #endif
+#endif
+
+/* Define a queue for storing defrag trackers */
+typedef struct DefragTrackerQueue_
+{
+    DefragTracker *top;
+    DefragTracker *bot;
+    uint32_t len;
+#ifdef DBG_PERF
+    uint32_t dbg_maxlen;
+#endif /* DBG_PERF */
+#ifdef DQLOCK_MUTEX
+    SCMutex m;
+#elif defined DQLOCK_SPIN
+    SCSpinlock s;
+#else
+    #error Enable DQLOCK_SPIN or DQLOCK_MUTEX
+#endif
+} DefragTrackerQueue;
+
+#ifdef DQLOCK_SPIN
+    #define DQLOCK_INIT(q) SCSpinInit(&(q)->s, 0)
+    #define DQLOCK_DESTROY(q) SCSpinDestroy(&(q)->s)
+    #define DQLOCK_LOCK(q) SCSpinLock(&(q)->s)
+    #define DQLOCK_TRYLOCK(q) SCSpinTrylock(&(q)->s)
+    #define DQLOCK_UNLOCK(q) SCSpinUnlock(&(q)->s)
+#elif defined DQLOCK_MUTEX
+    #define DQLOCK_INIT(q) SCMutexInit(&(q)->m, NULL)
+    #define DQLOCK_DESTROY(q) SCMutexDestroy(&(q)->m)
+    #define DQLOCK_LOCK(q) SCMutexLock(&(q)->m)
+    #define DQLOCK_TRYLOCK(q) SCMutexTrylock(&(q)->m)
+    #define DQLOCK_UNLOCK(q) SCMutexUnlock(&(q)->m)
+#else
+    #error Enable DQLOCK_SPIN or DQLOCK_MUTEX
+#endif
+
+/* prototypes */
+DefragTrackerQueue *DefragTrackerQueueNew(void);
+DefragTrackerQueue *DefragTrackerQueueInit(DefragTrackerQueue *);
+void DefragTrackerQueueDestroy (DefragTrackerQueue *);
+
+void DefragTrackerEnqueue (DefragTrackerQueue *, DefragTracker *);
+DefragTracker *DefragTrackerDequeue (DefragTrackerQueue *);
+uint32_t DefragTrackerQueueLen(DefragTrackerQueue *);
+
+#endif /* __DEFRAG_QUEUE_H__ */
+