Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/src/host-queue.c b/src/host-queue.c
new file mode 100644
index 0000000..f81cb54
--- /dev/null
+++ b/src/host-queue.c
@@ -0,0 +1,143 @@
+/* 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>
+ *
+ * Host queue handler functions
+ */
+
+#include "suricata-common.h"
+#include "threads.h"
+#include "host-queue.h"
+#include "util-error.h"
+#include "util-debug.h"
+#include "util-print.h"
+
+HostQueue *HostQueueInit (HostQueue *q)
+{
+    if (q != NULL) {
+        memset(q, 0, sizeof(HostQueue));
+        HQLOCK_INIT(q);
+    }
+    return q;
+}
+
+HostQueue *HostQueueNew(void)
+{
+    HostQueue *q = (HostQueue *)SCMalloc(sizeof(HostQueue));
+    if (q == NULL) {
+        SCLogError("Fatal error encountered in HostQueueNew. Exiting...");
+        exit(EXIT_SUCCESS);
+    }
+    q = HostQueueInit(q);
+    return q;
+}
+
+/**
+ *  \brief Destroy a host queue
+ *
+ *  \param q the host queue to destroy
+ */
+void HostQueueDestroy (HostQueue *q)
+{
+    HQLOCK_DESTROY(q);
+}
+
+/**
+ *  \brief add a host to a queue
+ *
+ *  \param q queue
+ *  \param h host
+ */
+void HostEnqueue (HostQueue *q, Host *h)
+{
+#ifdef DEBUG
+    BUG_ON(q == NULL || h == NULL);
+#endif
+
+    HQLOCK_LOCK(q);
+
+    /* more hosts in queue */
+    if (q->top != NULL) {
+        h->lnext = q->top;
+        q->top->lprev = h;
+        q->top = h;
+    /* only host */
+    } else {
+        q->top = h;
+        q->bot = h;
+    }
+    q->len++;
+#ifdef DBG_PERF
+    if (q->len > q->dbg_maxlen)
+        q->dbg_maxlen = q->len;
+#endif /* DBG_PERF */
+    HQLOCK_UNLOCK(q);
+}
+
+/**
+ *  \brief remove a host from the queue
+ *
+ *  \param q queue
+ *
+ *  \retval h host or NULL if empty list.
+ */
+Host *HostDequeue (HostQueue *q)
+{
+    HQLOCK_LOCK(q);
+
+    Host *h = q->bot;
+    if (h == NULL) {
+        HQLOCK_UNLOCK(q);
+        return NULL;
+    }
+
+    /* more packets in queue */
+    if (q->bot->lprev != NULL) {
+        q->bot = q->bot->lprev;
+        q->bot->lnext = NULL;
+    /* just the one we remove, so now empty */
+    } else {
+        q->top = NULL;
+        q->bot = NULL;
+    }
+
+#ifdef DEBUG
+    BUG_ON(q->len == 0);
+#endif
+    if (q->len > 0)
+        q->len--;
+
+    h->lnext = NULL;
+    h->lprev = NULL;
+
+    HQLOCK_UNLOCK(q);
+    return h;
+}
+
+uint32_t HostQueueLen(HostQueue *q)
+{
+    uint32_t len;
+    HQLOCK_LOCK(q);
+    len = q->len;
+    HQLOCK_UNLOCK(q);
+    return len;
+}
+