Method CreateNextPartHash

src/ThreadTasks.cpp:220–253

bool CHashingTask::CreateNextPartHash(CFileAutoClose& file, uint16 part, CKnownFile* owner, EHashes toHash)
{
	wxCHECK_MSG(!file.Eof(), false, "Unexpected EOF in CreateNextPartHash");

	const uint64 offset = part * PARTSIZE;
	// We'll read at most PARTSIZE bytes per cycle
	const uint64 partLength = owner->GetPartSize(part);

	CMD4Hash hash;
	CMD4Hash* md4Hash = ((toHash & EH_MD4) ? &hash : NULL);
	CAICHHashTree* aichHash = NULL;

	// Setup for AICH hashing
	if (toHash & EH_AICH) {
		aichHash = owner->GetAICHHashset()->m_pHashTree.FindHash(offset, partLength);
	}

	owner->CreateHashFromFile(file, offset, partLength, md4Hash, aichHash);

	if (toHash & EH_MD4) {
		// Store the md4 hash
		owner->m_hashlist.push_back(hash);

		// This is because of the ed2k implementation for parts. A 2 * PARTSIZE
		// file i.e. will have 3 parts (see CKnownFile::SetFileSize for comments).
		// So we have to create the hash for the 0-size data, which will be the default
		// md4 hash for null data: 31D6CFE0D16AE931B73C59D7E0C089C0
		if ((partLength == PARTSIZE) && file.Eof()) {
			owner->m_hashlist.push_back(CMD4Hash(g_emptyMD4Hash));
		}
	}

	return true;
}


void CHashingTask::OnLastTask()