本文整理汇总了C++中DataObjectRef::getDataObjectDataRetriever方法的典型用法代码示例。如果您正苦于以下问题：C++ DataObjectRef::getDataObjectDataRetriever方法的具体用法？C++ DataObjectRef::getDataObjectDataRetriever怎么用？C++ DataObjectRef::getDataObjectDataRetriever使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DataObjectRef的用法示例。
在下文中一共展示了DataObjectRef::getDataObjectDataRetriever方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: sendDataObjectNowNoControl
ProtocolEvent ProtocolUDPGeneric::sendDataObjectNowNoControl(
const DataObjectRef& dObj)
{
NodeRef currentPeer;
{ Mutex::AutoLocker l(mutex); currentPeer = peerNode; } // MOS
NodeRef actualPeer = getManager()->getKernel()->getNodeStore()->retrieve(currentPeer, true);
if (!actualPeer) {
HAGGLE_ERR("%s Peer not in node store\n", getName());
return PROT_EVENT_ERROR;
}
// check if already in peers bloomfilter
if (actualPeer->hasThisOrParentDataObject(dObj)) { // MOS
HAGGLE_DBG("%s Peer already had data object.\n", getName());
return PROT_EVENT_SUCCESS;
}
// done
// SW: we move the hook here to minimize race condition where we send
// too many redundant node descriptions
// TODO: we may want to synchronize on the dObj or have some serial
// queue so this is not probabilistic
sendDataObjectNowSuccessHook(dObj);
HAGGLE_DBG("%s Sending data object [%s] to peer \'%s\'\n",
getName(), dObj->getIdStr(), peerDescription().c_str());
DataObjectDataRetrieverRef retriever = dObj->getDataObjectDataRetriever();
if (!retriever || !retriever->isValid()) {
HAGGLE_ERR("%s unable to start reading data\n", getName());
return PROT_EVENT_ERROR;
}
ProtocolEvent pEvent = PROT_EVENT_SUCCESS;
ssize_t len = retriever->retrieve(buffer, bufferSize, false);
if (0 == len) {
HAGGLE_ERR("%s DataObject is empty\n", getName());
return PROT_EVENT_ERROR;
}
if (len < 0) {
HAGGLE_ERR("%s Could not retrieve data from data object\n", getName());
return PROT_EVENT_ERROR;
}
if ((size_t) len == bufferSize) {
HAGGLE_ERR("%s Buffer is too small for message\n", getName());
return PROT_EVENT_ERROR;
}
Timeval t_start;
t_start.setNow();
setSessionNo(dObj->getId()); // MOS
setSeqNo(0); // MOS
size_t bytesSent = 0;
// MOS - simple way to increase udp redundancy
for(int i = 0; i <= getConfiguration()->getRedundancy(); i++) {
pEvent = sendData(buffer, (size_t) len, 0, &bytesSent);
if (bytesSent != (size_t) len) {
pEvent = PROT_EVENT_ERROR;
}
if (pEvent != PROT_EVENT_SUCCESS) {
HAGGLE_ERR("%s Broadcast - Error\n", getName());
return pEvent;
}
}
#ifdef DEBUG
Timeval tx_time = Timeval::now() - t_start;
HAGGLE_DBG("%s Sent %lu bytes data in %.3lf seconds, average speed = %.2lf kB/s\n",
getName(), len, tx_time.getTimeAsSecondsDouble(),
(double)len / (1000*tx_time.getTimeAsSecondsDouble()));
#endif
dataObjectsOutgoing += 1; // MOS
dataObjectsSent += 1; // MOS
if(!dObj->isControlMessage()) dataObjectsOutgoingNonControl += 1; // MOS
dataObjectBytesOutgoing += bytesSent; // MOS
dataObjectBytesSent += len; // MOS
if(dObj->isNodeDescription()) { nodeDescSent += 1; nodeDescBytesSent += len; } // MOS
return PROT_EVENT_SUCCESS;
}