qbolt/qbolt/boltdb.cpp

69 lines
1.7 KiB
C++

#include "boltdb.h"
BoltDB::BoltDB()
{
}
BoltDB* BoltDB::createFrom(QString filePath, QString &errorOut)
{
auto opts = ::Bolt_Options_New_Readonly();
QByteArray filePathBytes(filePath.toUtf8());
GoString filePathGS = Interop::toGoString_WeakRef(&filePathBytes);
auto open_ret = ::Bolt_Open(filePathGS, 0444, opts);
if (open_ret.r1.n != 0) {
errorOut = QString(open_ret.r1.p);
return nullptr;
}
BoltDB *ret = new BoltDB();
ret->gmsDbRef = open_ret.r0;
return ret;
}
static const int ERROR_AND_STOP_CALLING = 100;
static const int ERROR_AND_KEEP_CALLING = 101;
static const int FINISHED_OK = 102;
static const int REAL_MESSAGE = 103;
bool BoltDB::listBucketsAtRoot(QString& errorOut, NameReciever cb)
{
auto listJob = ::Bolt_ListBucketsAtRoot(this->gmsDbRef);
errorOut.clear();
for(;;) {
auto gnr = ::GetNext(listJob);
if (gnr.r0 == ERROR_AND_STOP_CALLING) {
errorOut.append(QString(gnr.r1.p)); // log error
break; // done
} else if (gnr.r0 == ERROR_AND_KEEP_CALLING) {
errorOut.append(QString(gnr.r1.p)); // log error
continue;
} else if (gnr.r0 == FINISHED_OK) {
// Once we hit this, the go-side will clean up the channel / associated goroutines
break;
} else if (gnr.r0 == REAL_MESSAGE) {
cb(QByteArray(gnr.r1.p, gnr.r1.n));
continue;
}
}
return (errorOut.length() == 0);
}
BoltDB::~BoltDB()
{
GoString err = ::Bolt_Close(this->gmsDbRef);
if (err.n != 0) {
// Error closing database!
// Need to display an alert... somewhere
}
}