twitter / libwatchmanConditional 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).

Conditional Complexity Overall

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

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 21 most complex units

Unit	# lines	McCabe index	# params
static proto_t read_with_timeout() in watchman.c	38	10	4
static int unix_sockaddr_init() in watchman.c	34	6	3
static int unix_stream_connect() in watchman.c	26	6	2
int watchman_pclose() in watchman.c	27	5	2
static int unix_sockaddr_cleanup() in watchman.c	14	3	2
static int block_on_read() in watchman.c	19	3	2
static void do_output() in watchman.c	7	2	3
static void trace() in watchman.c	8	2	2
static void watchman_err() in watchman.c	23	2	4
static inline void bser_parse_if_necessary() in bser_private.h	6	2	1
static void warning() in watchman.c	6	1	2
static void error() in watchman.c	6	1	2
static int unix_stream_socket() in watchman.c	5	1	1
static int chdir_len() in watchman.c	9	1	2
static inline int bser_is_unparsed() in bser_private.h	4	1	1
static inline int bser_is_no_field() in bser_private.h	4	1	1
int64_t bser_integer_value() in bser.c	6	1	1
double bser_real_value() in bser.c	6	1	1
size_t bser_array_size() in bser.c	6	1	1
size_t bser_object_size() in bser.c	6	1	1
static void fill_in_error() in bser.c	4	1	2