aliyun / ossfs - Conditional Complexity

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).

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Conditional Complexity Overall

There are 768 units with 15,821 lines of code in units (75.5% of code).

4 very complex units (1,417 lines of code)
12 complex units (1,299 lines of code)
90 medium complex units (4,867 lines of code)
120 simple units (3,556 lines of code)
542 very simple units (4,682 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
static int my_fuse_opt_proc() in src/s3fs.cpp	672	190	4
bool S3fsCurl::RemakeHandle() in src/curl.cpp	296	97	0
int main() in src/s3fs.cpp	285	56	2
int FdEntity::Open() in src/fdcache_entity.cpp	164	52	5
int S3fsCurl::RequestPerform() in src/curl.cpp	209	48	1
static int get_object_attribute() in src/s3fs.cpp	109	43	7
int S3fsCurl::PutRequest() in src/curl.cpp	119	37	3
mode_t get_mode() in src/metaheader.cpp	78	34	5
int FdEntity::NoCacheLoadAndPost() in src/fdcache_entity.cpp	112	32	3
int S3fsCurl::PreMultipartPostRequest() in src/curl.cpp	94	32	4
bool PageList::Serialize() in src/fdcache_page.cpp	120	32	3
bool S3fsCurl::ResetHandle() in src/curl.cpp	78	31	1
static int rename_directory() in src/s3fs.cpp	106	31	2
bool S3fsCred::InitialCredentials() in src/s3fs_cred.cpp	83	30	0
int S3fsCurl::PutHeadRequest() in src/curl.cpp	84	30	3
int append_objects_from_xml_ex() in src/s3fs_xml.cpp	107	26	10
int FdEntity::RowFlushMixMultipart() in src/fdcache_entity.cpp	82	25	2
bool FdManager::RawCheckAllCache() in src/fdcache.cpp	111	25	6
bool StatCache::GetStat() in src/cache.cpp	70	24	7
bool s3fs_wtf8_encode() in src/string_util.cpp	53	24	2
int S3fsMultiCurl::MultiRead() in src/curl_multi.cpp	88	23	0
int FdEntity::RowFlushMultipart() in src/fdcache_entity.cpp	70	22	2
static int list_bucket() in src/s3fs.cpp	92	22	4
static int s3fs_setxattr() in src/s3fs.cpp	88	22	6
ssize_t FdEntity::WriteMultipart() in src/fdcache_entity.cpp	69	21	4
int S3fsCurl::RawCurlDebugFunc() in src/curl.cpp	56	21	6
static int check_object_access() in src/s3fs.cpp	62	21	3
ssize_t FdEntity::Read() in src/fdcache_entity.cpp	81	20	5
bool S3fsCurl::InitShareCurl() in src/curl.cpp	47	20	0
bool convert_unixtime_from_option_arg() in src/string_util.cpp	48	20	2
static fdpage_list_t raw_compress_fdpage_list() in src/fdcache_page.cpp	36	20	5
static int s3fs_removexattr() in src/s3fs.cpp	91	20	2
int S3fsCurl::ParallelMixMultipartUploadRequest() in src/curl.cpp	107	19	4
static int readdir_multi_head_optimize() in src/s3fs.cpp	96	19	4
bool S3fsCred::CheckAllParams() in src/s3fs_cred.cpp	39	18	0
int S3fsCurl::HeadRequest() in src/curl.cpp	43	18	2
static int s3fs_open() in src/s3fs.cpp	60	18	2
static int s3fs_check_service() in src/s3fs.cpp	62	18	0
bool S3ObjList::insert() in src/s3objlist.cpp	67	17	5
ssize_t FdEntity::WriteMixMultipart() in src/fdcache_entity.cpp	55	17	4
bool StatCache::AddStat() in src/cache.cpp	62	17	5
std::string urlDecode() in src/string_util.cpp	22	17	1
static int s3fs_chown() in src/s3fs.cpp	76	17	3
static int s3fs_utimens() in src/s3fs.cpp	90	17	2
bool S3fsCred::ParsePasswdFile() in src/s3fs_cred.cpp	76	16	1
void S3fsCurl::insertOSSV4Headers() in src/curl.cpp	68	16	3
int S3fsMultiCurl::MultiPerform() in src/curl_multi.cpp	63	16	0
bool StatCache::TruncateCache() in src/cache.cpp	47	16	0
bool AdditionalHeader::Load() in src/addhead.cpp	77	16	1
int S3fsCurl::CompleteMultipartPostRequest() in src/curl.cpp	78	15	3