// this runs in async thread
void StorageAsyncBulkCursor::AsyncReadFileChunk()
{
StorageChunkReader reader;
StorageDataPage* dataPage;
StorageAsyncBulkResult* result;
Callable onNextChunk = MFUNC(StorageAsyncBulkCursor, OnNextChunk);
reader.Open(chunkName, MAX_PRELOAD_THRESHOLD);
lastResult = NULL;
result = new StorageAsyncBulkResult(this);
dataPage = reader.FirstDataPage();
while (dataPage != NULL)
{
// rate control
while (lastResult != NULL || env->yieldThreads || env->asyncGetThread->GetNumPending() > 0)
{
MSleep(1);
}
if (isAborted || env->shuttingDown)
{
// abort cursor
delete result;
delete this;
return;
}
TransferDataPage(result, dataPage);
OnResult(result);
result = new StorageAsyncBulkResult(this);
dataPage = reader.NextDataPage();
}
OnResult(result);
IOProcessor::Complete(&onNextChunk);
}
void cDebugFile::Output(string sKeyList /* = */, eOutPut eOutType /* = All */)
{
std::vector<string> vecKey;
ParseName(vecKey, sKeyList);
ostringstream osFile;
int64 nResult(0); // >0增加 <0减少 =0不变
for (size_t i = 0; i < m_keyPos; ++i)
{
stKeyInfo& info = m_vecKey[i];
if (!vecKey.empty()
&& find(vecKey.begin(), vecKey.end(), info.key) == vecKey.end())
{
continue;
}
switch (info.type){
case v_uint8:{
nResult = int16(*(uint8*)info.pObj) - int16(*(uint8*)info.pOld); //可为-255
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(uint8*)info.pObj << "(" << *(uint8*)info.pOld << ")" << ";\r\n";
}
}break;
case v_uint16:{
nResult = int32(*(uint16*)info.pObj) - int32(*(uint16*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(uint16*)info.pObj << "(" << *(uint16*)info.pOld << ")" << ";\r\n";
}
}break;
case v_uint32:{
nResult = int64(*(uint32*)info.pObj) - int64(*(uint32*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(uint32*)info.pObj << "(" << *(uint32*)info.pOld << ")" << ";\r\n";
}
}break;
case v_uint64:{
nResult = (*(int64*)info.pObj) - (*(int64*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(int64*)info.pObj << "(" << *(int64*)info.pOld << ")" << ";\r\n";
}
}break;
case v_int8:{
nResult = int16(*(int8*)info.pObj) - int16(*(int8*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(int8*)info.pObj << "(" << *(int8*)info.pOld << ")" << ";\r\n";
}
}
break;
case v_int16:{
nResult = int32(*(int16*)info.pObj) - int32(*(int16*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(int16*)info.pObj << "(" << *(int16*)info.pOld << ")" << ";\r\n";
}
}break;
case v_int32:{
nResult = int64(*(int32*)info.pObj) - int64(*(int32*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(int32*)info.pObj << "(" << *(int32*)info.pOld << ")" << ";\r\n";
}
}break;
case v_int64:{
nResult = (*(int64*)info.pObj) - (*(int64*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(int64*)info.pObj << "(" << *(int64*)info.pOld << ")" << ";\r\n";
}
}break;
case v_float:{
float dif = (*(float*)info.pObj) - (*(float*)info.pOld);
if (OnResult(eOutType, dif == 0 ? 0 : (dif>0 ? 1 : -1), info.key, osFile))
{
osFile << " = " << *(float*)info.pObj << "(" << *(float*)info.pOld << ")" << ";\r\n";
}
}break;
case v_double:{
double dif = (*(double*)info.pObj) - (*(double*)info.pOld);
if (OnResult(eOutType, dif == 0 ? 0 : (dif>0 ? 1 : -1), info.key, osFile))
{
osFile << " = " << *(double*)info.pObj << "(" << *(double*)info.pOld << ")" << ";\r\n";
}
}break;
case v_string:{
nResult = strcmp(info.pObj, info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << info.pObj << "(" << info.pOld << ")" << ";\r\n";
}
}break;
default:{
nResult = int64(*(int32*)info.pObj) - int64(*(int32*)info.pOld);
if (OnResult(eOutType, nResult, info.key, osFile))
{
osFile << " = " << *(int32*)info.pObj << "(" << *(int32*)info.pOld << ")" << ";\r\n";
}
}break;
}
}
osFile << "\r\n";
WriteToFile(m_sFileName, osFile);
}
