facebook / wdt

Conditional Complexity

The distribution of complexity of units (measured with McCabe index).

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

Learn more...

Conditional Complexity Overall

There are 723 units with 10,015 lines of code in units (65.1% of code).

0 very complex units (0 lines of code)
4 complex units (648 lines of code)
27 medium complex units (1,785 lines of code)
68 simple units (2,273 lines of code)
624 very simple units (5,309 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
ReceiverState ReceiverThread::processFileCmd() in ReceiverThread.cpp	233	41	0
int main() in wdtCmdLine.cpp	183	36	2
bool DirectorySourceQueue::explore() in util/DirectorySourceQueue.cpp	133	32	0
ErrorCode LogParser::parseLog() in util/TransferLogManager.cpp	99	26	3
ErrorCode WdtUri::process() in WdtTransferRequest.cpp	91	20	1
SenderState SenderThread::readFileChunks() in SenderThread.cpp	111	20	0
ErrorCode ClientSocket::connect() in util/ClientSocket.cpp	119	19	0
ErrorCode Sender::start() in Sender.cpp	82	17	0
std::unique_ptr Sender::finish() in Sender.cpp	84	15	0
ErrorCode ServerSocket::acceptNextConnection() in util/ServerSocket.cpp	78	15	2
bool Protocol::decodeCheckpoints() in Protocol.cpp	39	15	5
TransferStats SenderThread::sendOneByteSource() in SenderThread.cpp	117	15	2
ReceiverState ReceiverThread::sendFileChunks() in ReceiverThread.cpp	90	14	0
int FileCreator::createFile() in util/FileCreator.cpp	82	14	2
int WdtSocket::readWithTimeout() in util/WdtSocket.cpp	50	14	4
int64_t WdtSocket::ioWithAbortCheck() in util/WdtSocket.cpp	48	14	5
int main() in bench/wdtGenFiles.cpp	86	13	2
ErrorCode ServerSocket::listen() in util/ServerSocket.cpp	76	13	0
string WdtUri::escape() in WdtTransferRequest.cpp	16	13	1
SenderState SenderThread::processVersionMismatch() in SenderThread.cpp	72	13	0
bool FileCreator::createDirRecursively() in util/FileCreator.cpp	33	12	2
void WdtSocket::readEncryptionSettingsOnce() in util/WdtSocket.cpp	63	12	1
void Receiver::fixAndCloseTransferLog() in Receiver.cpp	36	12	1
std::unique_ptr SenderThread::connectToReceiver() in SenderThread.cpp	66	12	3
ReceiverState ReceiverThread::processSettingsCmd() in ReceiverThread.cpp	73	11	0
ErrorCode EncryptionParams::unserialize() in util/EncryptionUtils.cpp	57	11	2
int WdtSocket::readAndDecryptWithTag() in util/WdtSocket.cpp	44	11	4
void TransferLogManager::compactLog() in util/TransferLogManager.cpp	63	11	0
bool Protocol::encodeHeader() in Protocol.cpp	27	11	5
bool Protocol::encodeSettings() in Protocol.cpp	28	11	5
ErrorCode SenderThread::readNextReceiverCmd() in SenderThread.cpp	54	11	0
std::unique_ptr DirectorySourceQueue::getNextSource() in util/DirectorySourceQueue.cpp	38	10	2
ErrorCode ThreadTransferHistory::validateCheckpoint() in util/ThreadTransferHistory.cpp	39	10	2
ErrorCode LogParser::processFileCreationEntry() in util/TransferLogManager.cpp	54	10	2
bool Protocol::decodeHeader() in Protocol.cpp	27	10	5
bool Protocol::encodeCheckpoints() in Protocol.cpp	25	10	5
SenderState SenderThread::readReceiverCmd() in SenderThread.cpp	38	10	0
ReceiverState ReceiverThread::acceptFirstConnection() in ReceiverThread.cpp	48	9	0
int FileCreator::openAndSetSize() in util/FileCreator.cpp	38	9	2
int FileCreator::openForBlocks() in util/FileCreator.cpp	43	9	2
void Counter::record() in util/Stats.cpp	23	9	1
void DirectorySourceQueue::createIntoQueueInternal() in util/DirectorySourceQueue.cpp	60	9	1
ErrorCode LogParser::processFileResizeEntry() in util/TransferLogManager.cpp	48	9	2
void Receiver::progressTracker() in Receiver.cpp	52	9	0
SenderState SenderThread::readLocalCheckPoint() in SenderThread.cpp	53	9	0
bool FileCreator::setFileSize() in util/FileCreator.cpp	31	8	3
double Histogram::calcPercentile() in util/Stats.cpp	39	8	1
bool AESEncryptor::start() in util/EncryptionUtils.cpp	42	8	2
bool AESDecryptor::start() in util/EncryptionUtils.cpp	41	8	2
ErrorCode WdtSocket::getNonRetryableErrCode() in util/WdtSocket.cpp	12	8	0