48 lines
869 B
Text
48 lines
869 B
Text
|
/*
|
||
|
|
* cacheObject implementation
|
||
|
|
*
|
||
|
|
* Copyright (C) Thomas Escher, Kai Lingemann
|
||
|
|
*
|
||
|
|
* Released under the GPL version 3.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "scanserver/cache/cacheObject.h"
|
||
|
|
|
||
|
|
#include <stdexcept>
|
||
|
|
#include <string>
|
||
|
|
using std::runtime_error;
|
||
|
|
using std::string;
|
||
|
|
|
||
|
|
using namespace boost::interprocess;
|
||
|
|
|
||
|
|
managed_shared_memory* CacheObject::m_msm = 0;
|
||
|
|
|
||
|
|
CacheObject::CacheObject() :
|
||
|
|
m_size(0),
|
||
|
|
m_handle(0),
|
||
|
|
m_handler(0)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
CacheObject::~CacheObject()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void CacheObject::setCacheHandler(CacheHandler* handler)
|
||
|
|
{
|
||
|
|
m_handler = handler;
|
||
|
|
}
|
||
|
|
|
||
|
|
void CacheObject::openSharedMemory(const char* shm_name)
|
||
|
|
{
|
||
|
|
// open the shared memory in this application
|
||
|
|
if(m_msm == 0) {
|
||
|
|
try {
|
||
|
|
m_msm = new managed_shared_memory(open_only, shm_name);
|
||
|
|
} catch(interprocess_exception& e) {
|
||
|
|
throw runtime_error(string("Could not open shared memory: ") + e.what());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|