You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.5 KiB
113 lines
3.5 KiB
#ifndef TRACE_H |
|
#define TRACE_H |
|
|
|
#include "git-compat-util.h" |
|
#include "strbuf.h" |
|
|
|
struct trace_key { |
|
const char * const key; |
|
int fd; |
|
unsigned int initialized : 1; |
|
unsigned int need_close : 1; |
|
}; |
|
|
|
#define TRACE_KEY_INIT(name) { "GIT_TRACE_" #name, 0, 0, 0 } |
|
|
|
extern void trace_repo_setup(const char *prefix); |
|
extern int trace_want(struct trace_key *key); |
|
extern void trace_disable(struct trace_key *key); |
|
extern uint64_t getnanotime(void); |
|
extern void trace_command_performance(const char **argv); |
|
|
|
#ifndef HAVE_VARIADIC_MACROS |
|
|
|
__attribute__((format (printf, 1, 2))) |
|
extern void trace_printf(const char *format, ...); |
|
|
|
__attribute__((format (printf, 2, 3))) |
|
extern void trace_printf_key(struct trace_key *key, const char *format, ...); |
|
|
|
__attribute__((format (printf, 2, 3))) |
|
extern void trace_argv_printf(const char **argv, const char *format, ...); |
|
|
|
extern void trace_strbuf(struct trace_key *key, const struct strbuf *data); |
|
|
|
/* Prints elapsed time (in nanoseconds) if GIT_TRACE_PERFORMANCE is enabled. */ |
|
__attribute__((format (printf, 2, 3))) |
|
extern void trace_performance(uint64_t nanos, const char *format, ...); |
|
|
|
/* Prints elapsed time since 'start' if GIT_TRACE_PERFORMANCE is enabled. */ |
|
__attribute__((format (printf, 2, 3))) |
|
extern void trace_performance_since(uint64_t start, const char *format, ...); |
|
|
|
#else |
|
|
|
/* |
|
* Macros to add file:line - see above for C-style declarations of how these |
|
* should be used. |
|
*/ |
|
|
|
/* |
|
* TRACE_CONTEXT may be set to __FUNCTION__ if the compiler supports it. The |
|
* default is __FILE__, as it is consistent with assert(), and static function |
|
* names are not necessarily unique. |
|
* |
|
* __FILE__ ":" __FUNCTION__ doesn't work with GNUC, as __FILE__ is supplied |
|
* by the preprocessor as a string literal, and __FUNCTION__ is filled in by |
|
* the compiler as a string constant. |
|
*/ |
|
#ifndef TRACE_CONTEXT |
|
# define TRACE_CONTEXT __FILE__ |
|
#endif |
|
|
|
/* |
|
* Note: with C99 variadic macros, __VA_ARGS__ must include the last fixed |
|
* parameter ('format' in this case). Otherwise, a call without variable |
|
* arguments will have a surplus ','. E.g.: |
|
* |
|
* #define foo(format, ...) bar(format, __VA_ARGS__) |
|
* foo("test"); |
|
* |
|
* will expand to |
|
* |
|
* bar("test",); |
|
* |
|
* which is invalid (note the ',)'). With GNUC, '##__VA_ARGS__' drops the |
|
* comma, but this is non-standard. |
|
*/ |
|
|
|
#define trace_printf(...) \ |
|
trace_printf_key_fl(TRACE_CONTEXT, __LINE__, NULL, __VA_ARGS__) |
|
|
|
#define trace_printf_key(key, ...) \ |
|
trace_printf_key_fl(TRACE_CONTEXT, __LINE__, key, __VA_ARGS__) |
|
|
|
#define trace_argv_printf(argv, ...) \ |
|
trace_argv_printf_fl(TRACE_CONTEXT, __LINE__, argv, __VA_ARGS__) |
|
|
|
#define trace_strbuf(key, data) \ |
|
trace_strbuf_fl(TRACE_CONTEXT, __LINE__, key, data) |
|
|
|
#define trace_performance(nanos, ...) \ |
|
trace_performance_fl(TRACE_CONTEXT, __LINE__, nanos, __VA_ARGS__) |
|
|
|
#define trace_performance_since(start, ...) \ |
|
trace_performance_fl(TRACE_CONTEXT, __LINE__, getnanotime() - (start), \ |
|
__VA_ARGS__) |
|
|
|
/* backend functions, use non-*fl macros instead */ |
|
__attribute__((format (printf, 4, 5))) |
|
extern void trace_printf_key_fl(const char *file, int line, struct trace_key *key, |
|
const char *format, ...); |
|
__attribute__((format (printf, 4, 5))) |
|
extern void trace_argv_printf_fl(const char *file, int line, const char **argv, |
|
const char *format, ...); |
|
extern void trace_strbuf_fl(const char *file, int line, struct trace_key *key, |
|
const struct strbuf *data); |
|
__attribute__((format (printf, 4, 5))) |
|
extern void trace_performance_fl(const char *file, int line, |
|
uint64_t nanos, const char *fmt, ...); |
|
|
|
#endif /* HAVE_VARIADIC_MACROS */ |
|
|
|
#endif /* TRACE_H */
|
|
|