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#include "simpletransaction.h"
#include <utility>
#ifdef QT_DEBUG
#include "debughelper.h"
#endif
using std::pair;
using namespace Enums;
void simpleTransaction::transactionStart() {
#ifdef QT_DEBUG
dbg() << "START" << transactionDepth;
#endif
transactionDepth++;
}
void simpleTransaction::transactionAdd(PROCESS id) {
#ifdef QT_DEBUG
dbg() << "ADD" << transactionDepth << id;
#endif
if (transactionDepth > 0) {
lastInTransaction = id;
} else {
transactionQueue.push(pair<PROCESS, PROCESS>(id, id));
}
}
void simpleTransaction::transactionEnd(PROCESS pid) {
#ifdef QT_DEBUG
dbg() << "END" << transactionDepth;
#endif
if (transactionDepth > 0) {
transactionDepth--;
if (transactionDepth == 0 && lastInTransaction != INVALID) {
transactionQueue.push(pair<PROCESS, PROCESS>(lastInTransaction, pid));
lastInTransaction = INVALID;
}
}
}
PROCESS simpleTransaction::transactionIsOver(PROCESS id) {
#ifdef QT_DEBUG
dbg() << "OVER" << transactionDepth << id;
#endif
if (!transactionQueue.empty() && id == transactionQueue.front().first) {
PROCESS ret = transactionQueue.front().second;
transactionQueue.pop();
return ret;
}
return INVALID;
}
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