suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a

Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f

1 files changed, 64 insertions, 0 deletions

diff --git a/framework/src/suricata/src/data-queue.h b/framework/src/suricata/src/data-queue.h
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+++ b/framework/src/suricata/src/data-queue.h
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+/**
+ * Copyright (c) 2009, 2010 Open Information Security Foundation.
+ *
+ * \author Anoop Saldanha <anoopsaldanha@gmail.com>
+ *
+ * \file Generic queues.  Any instance that wants to get itself on the generic
+ *       queue, would have to implement the template struct SCDQGenericQData_
+ *       defined below.
+ */
+
+#ifndef __DATA_QUEUE_H__
+#define __DATA_QUEUE_H__
+
+#include "threads.h"
+
+/**
+ * \brief Generic template for any data structure that wants to be on the
+ *        queue.  Any other data structure that wants to be on the queue
+ *        needs to use this template and define its own members from
+ *        <your_own_structure_members_from_here_on> onwards.
+ */
+typedef struct SCDQGenericQData_ {
+    /* this is needed when we want to supply a list of data items */
+    struct SCDQGenericQData_ *next;
+    struct SCDQGenericQData_ *prev;
+    /* if we want to consider this pointer as the head of a list, this var
+     * holds the no of elements in the list.  Else it holds a <need_to_think>. */
+    //uint16_t len;
+    /* in case this data instance is the head of a list, we can refer the
+     * bottomost instance directly using this var */
+    //struct SCDQGenericaQData *bot;
+
+
+    /* any other data structure that wants to be on the queue can implement
+     * its own memebers from here on, in its structure definition.  Just note
+     * that the first 2 members should always be next and prev in the same
+     * order */
+    // <your_own_structure_members_from_here_on>
+} SCDQGenericQData;
+
+/**
+ * \brief The data queue to hold instances that implement the template
+ *        SCDQGenericQData.
+ */
+typedef struct SCDQDataQueue_ {
+    /* holds the item at the top of the queue */
+    SCDQGenericQData *top;
+    /* holds the item at the bottom of the queue */
+    SCDQGenericQData *bot;
+    /* no of items currently in the queue */
+    uint16_t len;
+#ifdef DBG_PERF
+    uint16_t dbg_maxlen;
+#endif /* DBG_PERF */
+
+    SCMutex mutex_q;
+    SCCondT cond_q;
+
+} __attribute__((aligned(CLS))) SCDQDataQueue;
+
+void SCDQDataEnqueue(SCDQDataQueue *, SCDQGenericQData *);
+SCDQGenericQData *SCDQDataDequeue(SCDQDataQueue *);
+
+#endif /* __DATA_QUEUE_H__ */