mirror of
https://github.com/FairRootGroup/FairMQ.git
synced 2025-10-12 16:21:13 +00:00
c66fd6fe91
- Avoid polling when only one input channel is used. - Send only handles for shared memory transport. - Avoid waiting in the rate logger thread when nothing to log. - Hide warnings from generated files - Fix #483
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/********************************************************************************
|
|
* Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
|
|
* *
|
|
* This software is distributed under the terms of the *
|
|
* GNU Lesser General Public Licence version 3 (LGPL) version 3, *
|
|
* copied verbatim in the file "LICENSE" *
|
|
********************************************************************************/
|
|
#include <zmq.h>
|
|
|
|
#include <cstdio>
|
|
|
|
#include <boost/interprocess/managed_shared_memory.hpp>
|
|
|
|
#include "FairMQLogger.h"
|
|
#include "FairMQContextSHM.h"
|
|
#include "FairMQShmManager.h"
|
|
|
|
using namespace FairMQ::shmem;
|
|
|
|
FairMQContextSHM::FairMQContextSHM(int numIoThreads)
|
|
: fContext()
|
|
{
|
|
fContext = zmq_ctx_new();
|
|
if (fContext == NULL)
|
|
{
|
|
LOG(ERROR) << "failed creating context, reason: " << zmq_strerror(errno);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (zmq_ctx_set(fContext, ZMQ_IO_THREADS, numIoThreads) != 0)
|
|
{
|
|
LOG(ERROR) << "failed configuring context, reason: " << zmq_strerror(errno);
|
|
}
|
|
|
|
// Set the maximum number of allowed sockets on the context.
|
|
if (zmq_ctx_set(fContext, ZMQ_MAX_SOCKETS, 10000) != 0)
|
|
{
|
|
LOG(ERROR) << "failed configuring context, reason: " << zmq_strerror(errno);
|
|
}
|
|
|
|
Manager::Instance().InitializeSegment("open_or_create", "FairMQSharedMemory", 2000000000);
|
|
LOG(INFO) << "Created/Opened shared memory segment of 2,000,000,000 bytes. Available are " << Manager::Instance().Segment()->get_free_memory() << " bytes.";
|
|
}
|
|
|
|
FairMQContextSHM::~FairMQContextSHM()
|
|
{
|
|
Close();
|
|
|
|
if (boost::interprocess::shared_memory_object::remove("FairMQSharedMemory"))
|
|
{
|
|
printf("Successfully removed shared memory after the device has stopped.\n");
|
|
}
|
|
else
|
|
{
|
|
printf("Did not remove shared memory after the device stopped. Already removed?\n");
|
|
}
|
|
}
|
|
|
|
void* FairMQContextSHM::GetContext()
|
|
{
|
|
return fContext;
|
|
}
|
|
|
|
void FairMQContextSHM::Close()
|
|
{
|
|
if (fContext == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (zmq_ctx_destroy(fContext) != 0)
|
|
{
|
|
if (errno == EINTR)
|
|
{
|
|
LOG(ERROR) << " failed closing context, reason: " << zmq_strerror(errno);
|
|
}
|
|
else
|
|
{
|
|
fContext = NULL;
|
|
return;
|
|
}
|
|
}
|
|
}
|