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FairMQ: Extend Multipart and messaging API

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- Extend the multipart API to allow sending vectors of messages or helper
   thin wrapper FairMQParts. See example in examples/MQ/8-multipart.
 - NewMessage() can be used in devices instead of
   fTransportFactory->CreateMessage().
   Possible arguments remain unchanged (no args, size or data+size).
 - Send()/Receive() methods can be used in devices instead of
   fChannels.at("chan").at(i).Send()/Receive():
   Send(msg, "chan", i = 0), Receive(msg, "chan", i = 0).
 - Use the new methods in MQ examples and tests.
 - No breaking changes, but FAIRMQ_INTERFACE_VERSION is incremented to 3
   to allow to check for new methods.
This commit is contained in:
Alexey Rybalchenko
2016-02-23 18:00:35 +01:00
committed by Mohammad Al-Turany
parent 1bb72fea38
commit bbadf09aad
25 changed files with 102 additions and 112 deletions
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13
examples/MQ/8-multipart/FairMQExample8Sampler.cxx
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@@ -39,17 +39,14 @@ void FairMQExample8Sampler::Run()
// Set stopFlag to 1 for the first 4 messages, and to 0 for the 5th.
counter < 5 ? header->stopFlag = 0 : header->stopFlag = 1;
// Create message part with the header.
unique_ptr<FairMQMessage> headerPart(fTransportFactory->CreateMessage(header, sizeof(Ex8Header)));
// Create message part with the body of 1000 bytes size.
unique_ptr<FairMQMessage> dataPart(fTransportFactory->CreateMessage(1000));
FairMQParts parts;
parts.AddPart(NewMessage(header, sizeof(Ex8Header)));
parts.AddPart(NewMessage(1000));
LOG(INFO) << "Sending header with stopFlag: " << header->stopFlag;
LOG(INFO) << "Sending body of size: " << parts.At(1).GetSize();
// Schedule the header part for sending.
fChannels.at("data-out").at(0).SendPart(headerPart);
// Add body part (final part). `Send()` will send/queue all parts.
fChannels.at("data-out").at(0).Send(dataPart);
Send(parts, "data-out");
// Go out of the sending loop if the stopFlag was sent.
if (counter == 5)