void TargetPhraseCollection::ReadFromFile(size_t tableLimit, UINT64 filePos, OnDiskWrapper &onDiskWrapper)
{
fstream &fileTPColl = onDiskWrapper.GetFileTargetColl();
fstream &fileTP = onDiskWrapper.GetFileTargetInd();
size_t numScores = onDiskWrapper.GetNumScores();
UINT64 numPhrases;
UINT64 currFilePos = filePos;
fileTPColl.seekg(filePos);
fileTPColl.read((char*) &numPhrases, sizeof(UINT64));
// table limit
numPhrases = std::min(numPhrases, (UINT64) tableLimit);
currFilePos += sizeof(UINT64);
for (size_t ind = 0; ind < numPhrases; ++ind) {
TargetPhrase *tp = new TargetPhrase(numScores);
UINT64 sizeOtherInfo = tp->ReadOtherInfoFromFile(currFilePos, fileTPColl);
tp->ReadFromFile(fileTP);
currFilePos += sizeOtherInfo;
m_coll.push_back(tp);
}
}
void TargetPhraseCollection::Save(OnDiskWrapper &onDiskWrapper)
{
std::fstream &file = onDiskWrapper.GetFileTargetColl();
size_t memUsed = sizeof(uint64_t);
char *mem = (char*) malloc(memUsed);
// size of coll
uint64_t numPhrases = GetSize();
((uint64_t*)mem)[0] = numPhrases;
// MAIN LOOP
CollType::iterator iter;
for (iter = m_coll.begin(); iter != m_coll.end(); ++iter) {
// save phrase
TargetPhrase &targetPhrase = **iter;
targetPhrase.Save(onDiskWrapper);
// save coll
size_t memUsedTPOtherInfo;
char *memTPOtherInfo = targetPhrase.WriteOtherInfoToMemory(onDiskWrapper, memUsedTPOtherInfo);
// expand existing mem
mem = (char*) realloc(mem, memUsed + memUsedTPOtherInfo);
memcpy(mem + memUsed, memTPOtherInfo, memUsedTPOtherInfo);
memUsed += memUsedTPOtherInfo;
free(memTPOtherInfo);
}
// total number of bytes
//((uint64_t*)mem)[0] = (uint64_t) memUsed;
uint64_t startPos = file.tellp();
file.seekp(0, ios::end);
file.write((char*) mem, memUsed);
free(mem);
#ifndef NDEBUG
uint64_t endPos = file.tellp();
assert(startPos + memUsed == endPos);
#endif
m_filePos = startPos;
}
