From 32dccec98e4c7d7e4ce902e19ba8d1b29b823758 Mon Sep 17 00:00:00 2001
From: Jordan Augé <jordan.auge+fdio@cisco.com>
Date: Wed, 23 Sep 2020 17:50:52 +0200
Subject: [HICN-570] Message buffer (incl. CS and PIT changes)
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Change-Id: I4c508e4b04dee3acbfc3da1d26e1770cb826f22b
Signed-off-by: Jordan Augé <jordan.auge+fdio@cisco.com>
---
 hicn-light/src/hicn/core/msgbuf_pool.c | 84 ++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 hicn-light/src/hicn/core/msgbuf_pool.c

(limited to 'hicn-light/src/hicn/core/msgbuf_pool.c')

diff --git a/hicn-light/src/hicn/core/msgbuf_pool.c b/hicn-light/src/hicn/core/msgbuf_pool.c
new file mode 100644
index 000000000..597123a7a
--- /dev/null
+++ b/hicn-light/src/hicn/core/msgbuf_pool.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2020 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file msgbuf_pool.c
+ * @brief Implementation of hICN packet pool.
+ */
+
+#include "../base/pool.h"
+#include "msgbuf_pool.h"
+
+#define PACKET_POOL_DEFAULT_INIT_SIZE 1024
+
+msgbuf_pool_t *
+_msgbuf_pool_create(size_t init_size, size_t max_size)
+{
+    msgbuf_pool_t * msgbuf_pool = malloc(sizeof(msgbuf_pool_t));
+
+    if (init_size == 0)
+        init_size = PACKET_POOL_DEFAULT_INIT_SIZE;
+
+    pool_init(msgbuf_pool->buffers, init_size, 0);
+
+    return msgbuf_pool;
+}
+
+void
+msgbuf_pool_free(msgbuf_pool_t * msgbuf_pool)
+{
+    pool_free(msgbuf_pool->buffers);
+    free(msgbuf_pool);
+}
+
+int
+msgbuf_pool_get(msgbuf_pool_t * msgbuf_pool, msgbuf_t * msgbuf)
+{
+    pool_get(msgbuf_pool->buffers, msgbuf);
+    return 0;
+}
+
+void
+msgbuf_pool_put(msgbuf_pool_t * msgbuf_pool, msgbuf_t * msgbuf)
+{
+    pool_put(msgbuf_pool->buffers, msgbuf);
+}
+
+int
+msgbuf_pool_getn(msgbuf_pool_t * msgbuf_pool, msgbuf_t ** msgbuf, size_t n)
+{
+    for (unsigned i = 0; i < n; i++) {
+        if (!msgbuf_pool_get(msgbuf_pool, msgbuf[i])) {
+            for (unsigned j = 0; j < i; j++) {
+                msgbuf_pool_put(msgbuf_pool, msgbuf[j]);
+                return 0;
+            }
+            break;
+        }
+    }
+    return -1;
+}
+
+off_t
+msgbuf_pool_get_id(msgbuf_pool_t * msgbuf_pool, msgbuf_t * msgbuf)
+{
+    return msgbuf - msgbuf_pool->buffers;
+}
+
+msgbuf_t *
+msgbuf_pool_at(const msgbuf_pool_t * msgbuf_pool, off_t id)
+{
+    return msgbuf_pool->buffers + id;
+}
-- 
cgit 1.2.3-korg