1 files changed, 174 insertions, 0 deletions
diff --git a/exynos/multimedia/openmax/osal/SEC_OSAL_Queue.c b/exynos/multimedia/openmax/osal/SEC_OSAL_Queue.c
new file mode 100644
index 0000000..4ecd8dc
--- /dev/null
+++ b/exynos/multimedia/openmax/osal/SEC_OSAL_Queue.c
@@ -0,0 +1,174 @@
+/*
+ *
+ * Copyright 2010 Samsung Electronics S.LSI Co. LTD
+ *
+ * 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        SEC_OSAL_Queue.c
+ * @brief
+ * @author      SeungBeom Kim (sbcrux.kim@samsung.com)
+ * @version     1.1.0
+ * @history
+ *   2010.7.15 : Create
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "SEC_OSAL_Memory.h"
+#include "SEC_OSAL_Mutex.h"
+#include "SEC_OSAL_Queue.h"
+
+
+OMX_ERRORTYPE SEC_OSAL_QueueCreate(SEC_QUEUE *queueHandle)
+{
+    int i = 0;
+    SEC_QElem *newqelem = NULL;
+    SEC_QElem *currentqelem = NULL;
+    SEC_QUEUE *queue = (SEC_QUEUE *)queueHandle;
+
+    OMX_ERRORTYPE ret = OMX_ErrorNone;
+
+    if (!queue)
+        return OMX_ErrorBadParameter;
+
+    ret = SEC_OSAL_MutexCreate(&queue->qMutex);
+    if (ret != OMX_ErrorNone)
+        return ret;
+
+    queue->first = (SEC_QElem *)SEC_OSAL_Malloc(sizeof(SEC_QElem));
+    if (queue->first == NULL)
+        return OMX_ErrorInsufficientResources;
+
+    SEC_OSAL_Memset(queue->first, 0, sizeof(SEC_QElem));
+    currentqelem = queue->last = queue->first;
+    queue->numElem = 0;
+
+    for (i = 0; i < (MAX_QUEUE_ELEMENTS - 2); i++) {
+        newqelem = (SEC_QElem *)SEC_OSAL_Malloc(sizeof(SEC_QElem));
+        if (newqelem == NULL) {
+            while (queue->first != NULL) {
+                currentqelem = queue->first->qNext;
+                SEC_OSAL_Free((OMX_PTR)queue->first);
+                queue->first = currentqelem;
+            }
+            return OMX_ErrorInsufficientResources;
+        } else {
+            SEC_OSAL_Memset(newqelem, 0, sizeof(SEC_QElem));
+            currentqelem->qNext = newqelem;
+            currentqelem = newqelem;
+        }
+    }
+
+    currentqelem->qNext = queue->first;
+
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SEC_OSAL_QueueTerminate(SEC_QUEUE *queueHandle)
+{
+    int i = 0;
+    SEC_QElem *currentqelem = NULL;
+    SEC_QUEUE *queue = (SEC_QUEUE *)queueHandle;
+    OMX_ERRORTYPE ret = OMX_ErrorNone;
+
+    if (!queue)
+        return OMX_ErrorBadParameter;
+
+    for ( i = 0; i < (MAX_QUEUE_ELEMENTS - 2); i++) {
+        currentqelem = queue->first->qNext;
+        SEC_OSAL_Free(queue->first);
+        queue->first = currentqelem;
+    }
+
+    if(queue->first) {
+        SEC_OSAL_Free(queue->first);
+        queue->first = NULL;
+    }
+
+    ret = SEC_OSAL_MutexTerminate(queue->qMutex);
+
+    return ret;
+}
+
+int SEC_OSAL_Queue(SEC_QUEUE *queueHandle, void *data)
+{
+    SEC_QUEUE *queue = (SEC_QUEUE *)queueHandle;
+    if (queue == NULL)
+        return -1;
+
+    SEC_OSAL_MutexLock(queue->qMutex);
+
+    if ((queue->last->data != NULL) || (queue->numElem >= MAX_QUEUE_ELEMENTS)) {
+        SEC_OSAL_MutexUnlock(queue->qMutex);
+        return -1;
+    }
+    queue->last->data = data;
+    queue->last = queue->last->qNext;
+    queue->numElem++;
+
+    SEC_OSAL_MutexUnlock(queue->qMutex);
+    return 0;
+}
+
+void *SEC_OSAL_Dequeue(SEC_QUEUE *queueHandle)
+{
+    void *data = NULL;
+    SEC_QUEUE *queue = (SEC_QUEUE *)queueHandle;
+    if (queue == NULL)
+        return NULL;
+
+    SEC_OSAL_MutexLock(queue->qMutex);
+
+    if ((queue->first->data == NULL) || (queue->numElem <= 0)) {
+        SEC_OSAL_MutexUnlock(queue->qMutex);
+        return NULL;
+    }
+    data = queue->first->data;
+    queue->first->data = NULL;
+    queue->first = queue->first->qNext;
+    queue->numElem--;
+
+    SEC_OSAL_MutexUnlock(queue->qMutex);
+    return data;
+}
+
+int SEC_OSAL_GetElemNum(SEC_QUEUE *queueHandle)
+{
+    int ElemNum = 0;
+    SEC_QUEUE *queue = (SEC_QUEUE *)queueHandle;
+    if (queue == NULL)
+        return -1;
+
+    SEC_OSAL_MutexLock(queue->qMutex);
+    ElemNum = queue->numElem;
+    SEC_OSAL_MutexUnlock(queue->qMutex);
+    return ElemNum;
+}
+
+int SEC_OSAL_SetElemNum(SEC_QUEUE *queueHandle, int ElemNum)
+{
+    SEC_QUEUE *queue = (SEC_QUEUE *)queueHandle;
+    if (queue == NULL)
+        return -1;
+
+    SEC_OSAL_MutexLock(queue->qMutex);
+    queue->numElem = ElemNum; 
+    SEC_OSAL_MutexUnlock(queue->qMutex);
+    return ElemNum;
+}
+