FairMQ/fairmq/zeromq/FairMQMessageZMQ.cxx
Alexey Rybalchenko 9a0ed2ca72 Add (optional) Google Protocol Buffers support (example in Tutorial 3).
To use protobuf, run cmake as follows:
cmake -DUSE_PROTOBUF=1 ..
For this, protobuf library has to be installed on the system.

Further changes:
Clean up splitter/merger: default are N-to-1-merger and 1-to-N-splitter.
Fix bug in nanomsg message deallocation.
Setup proper buffer sizes for nanomsg/zeromq via cmake/bash script.
chmod +x for start scripts.
2014-03-17 12:21:47 +01:00

114 lines
2.5 KiB
C++

/**
* FairMQMessageZMQ.cxx
*
* @since 2012-12-05
* @author D. Klein, A. Rybalchenko, N. Winckler
*/
#include <cstring>
#include <cstdlib>
#include "FairMQMessageZMQ.h"
#include "FairMQLogger.h"
FairMQMessageZMQ::FairMQMessageZMQ()
{
int rc = zmq_msg_init (&fMessage);
if (rc != 0) {
LOG(ERROR) << "failed initializing message, reason: " << zmq_strerror(errno);
}
}
FairMQMessageZMQ::FairMQMessageZMQ(size_t size)
{
int rc = zmq_msg_init_size (&fMessage, size);
if (rc != 0) {
LOG(ERROR) << "failed initializing message with size, reason: " << zmq_strerror(errno);
}
}
FairMQMessageZMQ::FairMQMessageZMQ(void* data, size_t size)
{
int rc = zmq_msg_init_data (&fMessage, data, size, &CleanUp, NULL);
if (rc != 0) {
LOG(ERROR) << "failed initializing message with data, reason: " << zmq_strerror(errno);
}
}
void FairMQMessageZMQ::Rebuild()
{
CloseMessage();
int rc = zmq_msg_init (&fMessage);
if (rc != 0) {
LOG(ERROR) << "failed initializing message, reason: " << zmq_strerror(errno);
}
}
void FairMQMessageZMQ::Rebuild(size_t size)
{
CloseMessage();
int rc = zmq_msg_init_size (&fMessage, size);
if (rc != 0) {
LOG(ERROR) << "failed initializing message with size, reason: " << zmq_strerror(errno);
}
}
void FairMQMessageZMQ::Rebuild(void* data, size_t size)
{
CloseMessage();
int rc = zmq_msg_init_data (&fMessage, data, size, &CleanUp, NULL);
if (rc != 0) {
LOG(ERROR) << "failed initializing message with data, reason: " << zmq_strerror(errno);
}
}
void* FairMQMessageZMQ::GetMessage()
{
return &fMessage;
}
void* FairMQMessageZMQ::GetData()
{
return zmq_msg_data (&fMessage);
}
size_t FairMQMessageZMQ::GetSize()
{
return zmq_msg_size (&fMessage);
}
void FairMQMessageZMQ::SetMessage(void* data, size_t size)
{
// dummy method to comply with the interface. functionality not allowed in zeromq.
}
void FairMQMessageZMQ::Copy(FairMQMessage* msg)
{
CloseMessage();
size_t size = msg->GetSize();
zmq_msg_init_size(&fMessage, size);
std::memcpy(zmq_msg_data(&fMessage), msg->GetData(), size);
}
inline void FairMQMessageZMQ::CloseMessage()
{
int rc = zmq_msg_close (&fMessage);
if (rc != 0) {
LOG(ERROR) << "failed closing message, reason: " << zmq_strerror(errno);
}
}
void FairMQMessageZMQ::CleanUp(void* data, void* hint)
{
free (data);
}
FairMQMessageZMQ::~FairMQMessageZMQ()
{
int rc = zmq_msg_close (&fMessage);
if (rc != 0) {
LOG(ERROR) << "failed closing message with data, reason: " << zmq_strerror(errno);
}
}