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vcmi/lib/Interprocess.h
Michał W. Urbańczyk e4dc00abac * new file lib/UnlockGuard.h — unlock_guard is for unlocking a mutex for the scope time (RAII)
* all lock/unlock and unlock/lock pairs are done by RAII guards now
* fixed two possible crashes at the end of battle when last stack was killed by spell. That should fix #749 and #752.
* fixed a very nasty race condition, eliminating possible deadlock at the start of battle when human hero has tactics
* fixed #422
2012-02-19 21:03:43 +00:00

57 lines
1.3 KiB
C

#pragma once
#include <boost/interprocess/sync/interprocess_mutex.hpp>
#include <boost/interprocess/sync/interprocess_condition.hpp>
#include <boost/interprocess/mapped_region.hpp>
#include <boost/interprocess/shared_memory_object.hpp>
/*
* Interprocess.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
struct ServerReady
{
bool ready;
boost::interprocess::interprocess_mutex mutex;
boost::interprocess::interprocess_condition cond;
ServerReady()
{
ready = false;
}
void setToTrueAndNotify()
{
{
boost::unique_lock<boost::interprocess::interprocess_mutex> lock(mutex);
ready = true;
}
cond.notify_all();
}
};
struct SharedMem
{
boost::interprocess::shared_memory_object smo;
boost::interprocess::mapped_region *mr;
ServerReady *sr;
SharedMem() //c-tor
:smo(boost::interprocess::open_or_create,"vcmi_memory",boost::interprocess::read_write)
{
smo.truncate(sizeof(ServerReady));
mr = new boost::interprocess::mapped_region(smo,boost::interprocess::read_write);
sr = new(mr->get_address())ServerReady();
};
~SharedMem() //d-tor
{
delete mr;
boost::interprocess::shared_memory_object::remove("vcmi_memory");
}
};