unsigned int need_close : 1;
};
+extern struct trace_key trace_default_key;
+
#define TRACE_KEY_INIT(name) { "GIT_TRACE_" #name, 0, 0, 0 }
+extern struct trace_key trace_perf_key;
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);
+extern void trace_verbatim(struct trace_key *key, const void *buf, unsigned len);
#ifndef HAVE_VARIADIC_MACROS
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
/*
* 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_printf_key(key, ...) \
+ do { \
+ if (trace_pass_fl(key)) \
+ trace_printf_key_fl(TRACE_CONTEXT, __LINE__, key, \
+ __VA_ARGS__); \
+ } while (0)
+
+#define trace_printf(...) trace_printf_key(&trace_default_key, __VA_ARGS__)
+
+#define trace_argv_printf(argv, ...) \
+ do { \
+ if (trace_pass_fl(&trace_default_key)) \
+ trace_argv_printf_fl(TRACE_CONTEXT, __LINE__, \
+ argv, __VA_ARGS__); \
+ } while (0)
+
+#define trace_strbuf(key, data) \
+ do { \
+ if (trace_pass_fl(key)) \
+ trace_strbuf_fl(TRACE_CONTEXT, __LINE__, key, data);\
+ } while (0)
+
+#define trace_performance(nanos, ...) \
+ do { \
+ if (trace_pass_fl(&trace_perf_key)) \
+ trace_performance_fl(TRACE_CONTEXT, __LINE__, nanos,\
+ __VA_ARGS__); \
+ } while (0)
+
+#define trace_performance_since(start, ...) \
+ do { \
+ if (trace_pass_fl(&trace_perf_key)) \
+ trace_performance_fl(TRACE_CONTEXT, __LINE__, \
+ getnanotime() - (start), \
+ __VA_ARGS__); \
+ } while (0)
/* backend functions, use non-*fl macros instead */
__attribute__((format (printf, 4, 5)))
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, ...);
+static inline int trace_pass_fl(struct trace_key *key)
+{
+ return key->fd || !key->initialized;
+}
#endif /* HAVE_VARIADIC_MACROS */