diff options
Diffstat (limited to 'metis/ccnx/forwarder/metis/core/metis_StreamBuffer.c')
-rw-r--r-- | metis/ccnx/forwarder/metis/core/metis_StreamBuffer.c | 153 |
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); +} |