1 files changed, 153 insertions, 0 deletions
diff --git a/metis/ccnx/forwarder/metis/core/metis_StreamBuffer.c b/metis/ccnx/forwarder/metis/core/metis_StreamBuffer.c
new file mode 100644
index 00000000..12638095
--- /dev/null
+++ b/metis/ccnx/forwarder/metis/core/metis_StreamBuffer.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2017 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.
+ */
+
+
+#include <config.h>
+#include <stdio.h>
+
+#include <LongBow/runtime.h>
+
+#include <ccnx/forwarder/metis/core/metis_StreamBuffer.h>
+
+void
+metisStreamBuffer_Destroy(PARCEventQueue **bufferPtr)
+{
+    assertNotNull(bufferPtr, "Parameter must be non-null double pointer");
+    assertNotNull(*bufferPtr, "Parameter must dereference to non-null pointer");
+    parcEventQueue_Destroy(bufferPtr);
+    *bufferPtr = NULL;
+}
+
+void
+metisStreamBuffer_SetWatermark(PARCEventQueue *buffer, bool setRead, bool setWrite, size_t low, size_t high)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+
+    short flags = 0;
+    if (setRead) {
+        flags |= PARCEventType_Read;
+    }
+
+    if (setWrite) {
+        flags |= PARCEventType_Write;
+    }
+
+    parcEventQueue_SetWatermark(buffer, flags, low, high);
+}
+
+int
+metisStreamBuffer_Flush(PARCEventQueue *buffer, bool flushRead, bool flushWrite)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+
+    short flags = 0;
+    if (flushRead) {
+        flags |= PARCEventType_Read;
+    }
+
+    if (flushWrite) {
+        flags |= PARCEventType_Write;
+    }
+
+    return parcEventQueue_Flush(buffer, flags);
+}
+
+// NOT USED!!
+int
+metisStreamBuffer_FlushCheckpoint(PARCEventQueue *buffer, bool flushRead, bool flushWrite)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+
+    short flags = 0;
+    if (flushRead) {
+        flags |= PARCEventType_Read;
+    }
+
+    if (flushWrite) {
+        flags |= PARCEventType_Write;
+    }
+
+    return parcEventQueue_Flush(buffer, flags);
+}
+
+// NOT USED!!
+int
+metisStreamBuffer_FlushFinished(PARCEventQueue *buffer, bool flushRead, bool flushWrite)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+
+    short flags = 0;
+    if (flushRead) {
+        flags |= PARCEventType_Read;
+    }
+
+    if (flushWrite) {
+        flags |= PARCEventType_Write;
+    }
+
+    return parcEventQueue_Flush(buffer, flags);
+}
+
+void
+metisStreamBuffer_SetCallbacks(PARCEventQueue *buffer,
+                               PARCEventQueue_Callback *readCallback,
+                               PARCEventQueue_Callback *writeCallback,
+                               PARCEventQueue_EventCallback *eventCallback,
+                               void *user_data)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+
+    parcEventQueue_SetCallbacks(buffer, readCallback, writeCallback, eventCallback, user_data);
+}
+
+void
+metisStreamBuffer_EnableCallbacks(PARCEventQueue *buffer, bool enableRead, bool enableWrite)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+    short flags = 0;
+    if (enableRead) {
+        flags |= PARCEventType_Read;
+    }
+    if (enableWrite) {
+        flags |= PARCEventType_Write;
+    }
+
+    parcEventQueue_Enable(buffer, flags);
+}
+
+/**
+ * @function MetisStreamBuffer_DisableCallbacks
+ * @abstract Disables specified callbacks.  Does not affect others.
+ * @discussion
+ *   Disables enabled callbacks.  If a callback is already disabled, has no effect.
+ *   A "false" value does not enable it.
+ *
+ * @param <#param1#>
+ * @return <#return#>
+ */
+void
+metisStreamBuffer_DisableCallbacks(PARCEventQueue *buffer, bool disableRead, bool disableWrite)
+{
+    assertNotNull(buffer, "Parameter buffer must be non-null");
+    short flags = 0;
+    if (disableRead) {
+        flags |= PARCEventType_Read;
+    }
+    if (disableWrite) {
+        flags |= PARCEventType_Write;
+    }
+
+    parcEventQueue_Disable(buffer, flags);
+}