suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a

Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f

1 files changed, 82 insertions, 0 deletions

diff --git a/framework/src/suricata/src/tmqh-packetpool.h b/framework/src/suricata/src/tmqh-packetpool.h
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+++ b/framework/src/suricata/src/tmqh-packetpool.h
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+/* Copyright (C) 2007-2014 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 __TMQH_PACKETPOOL_H__
+#define __TMQH_PACKETPOOL_H__
+
+#include "decode.h"
+#include "threads.h"
+#include "util-atomic.h"
+
+    /* Return stack, onto which other threads free packets. */
+typedef struct PktPoolLockedStack_{
+    /* linked list of free packets. */
+    SCMutex mutex;
+    SCCondT cond;
+    SC_ATOMIC_DECLARE(int, sync_now);
+    Packet *head;
+} __attribute__((aligned(CLS))) PktPoolLockedStack;
+
+typedef struct PktPool_ {
+    /* link listed of free packets local to this thread.
+     * No mutex is needed.
+     */
+    Packet *head;
+    /* Packets waiting (pending) to be returned to the given Packet
+     * Pool. Accumulate packets for the same pool until a theshold is
+     * reached, then return them all at once.  Keep the head and tail
+     * to fast insertion of the entire list onto a return stack.
+     */
+    struct PktPool_ *pending_pool;
+    Packet *pending_head;
+    Packet *pending_tail;
+    uint32_t pending_count;
+
+#ifdef DEBUG_VALIDATION
+    int initialized;
+    int destroyed;
+#endif /* DEBUG_VALIDATION */
+
+    /* All members above this point are accessed locally by only one thread, so
+     * these should live on their own cache line.
+     */
+
+    /* Return stack, where other threads put packets that they free that belong
+     * to this thread.
+     */
+    PktPoolLockedStack return_stack;
+} PktPool;
+
+Packet *TmqhInputPacketpool(ThreadVars *);
+void TmqhOutputPacketpool(ThreadVars *, Packet *);
+void TmqhReleasePacketsToPacketPool(PacketQueue *);
+void TmqhPacketpoolRegister(void);
+Packet *PacketPoolGetPacket(void);
+void PacketPoolWait(void);
+void PacketPoolWaitForN(int n);
+void PacketPoolReturnPacket(Packet *p);
+void PacketPoolInit(void);
+void PacketPoolInitEmpty(void);
+void PacketPoolDestroy(void);
+
+#endif /* __TMQH_PACKETPOOL_H__ */