diff options
author | Simon Ser <contact@emersion.fr> | 2020-03-05 13:17:46 +0100 |
---|---|---|
committer | Drew DeVault <sir@cmpwn.com> | 2020-03-07 00:25:01 +0100 |
commit | e7f8cc6801bc28ccc8aac8aabd2896cbeec8e369 (patch) | |
tree | ceeac33ed8398101bbff1abcb0d5e755f40bd752 | |
parent | 7bce056f1d9490cf04166d3eb0183c9eec2204ff (diff) |
util/log: improve time prefix
Log milliseconds. This is useful when debugging a rendering loop.
Print the time relative to the compositor start-up.
-rw-r--r-- | util/log.c | 38 |
1 files changed, 30 insertions, 8 deletions
@@ -11,6 +11,7 @@ static bool colored = true; static enum wlr_log_importance log_importance = WLR_ERROR; +static struct timespec start_time = {-1}; static const char *verbosity_colors[] = { [WLR_SILENT] = "", @@ -19,20 +20,39 @@ static const char *verbosity_colors[] = { [WLR_DEBUG ] = "\x1B[1;30m", }; +static void timespec_sub(struct timespec *r, const struct timespec *a, + const struct timespec *b) { + const long NSEC_PER_SEC = 1000000000; + r->tv_sec = a->tv_sec - b->tv_sec; + r->tv_nsec = a->tv_nsec - b->tv_nsec; + if (r->tv_nsec < 0) { + r->tv_sec--; + r->tv_nsec += NSEC_PER_SEC; + } +} + +static void init_start_time(void) { + if (start_time.tv_sec >= 0) { + return; + } + clock_gettime(CLOCK_MONOTONIC, &start_time); +} + static void log_stderr(enum wlr_log_importance verbosity, const char *fmt, va_list args) { + init_start_time(); + if (verbosity > log_importance) { return; } - // prefix the time to the log message - struct tm result; - time_t t = time(NULL); - struct tm *tm_info = localtime_r(&t, &result); - char buffer[26]; - // generate time prefix - strftime(buffer, sizeof(buffer), "%F %T - ", tm_info); - fprintf(stderr, "%s", buffer); + struct timespec ts = {0}; + clock_gettime(CLOCK_MONOTONIC, &ts); + timespec_sub(&ts, &ts, &start_time); + + fprintf(stderr, "%02d:%02d:%02d.%03ld ", (int)(ts.tv_sec / 60 / 60), + (int)(ts.tv_sec / 60 % 60), (int)(ts.tv_sec % 60), + ts.tv_nsec / 1000000); unsigned c = (verbosity < WLR_LOG_IMPORTANCE_LAST) ? verbosity : WLR_LOG_IMPORTANCE_LAST - 1; @@ -60,6 +80,8 @@ static void log_wl(const char *fmt, va_list args) { } void wlr_log_init(enum wlr_log_importance verbosity, wlr_log_func_t callback) { + init_start_time(); + if (verbosity < WLR_LOG_IMPORTANCE_LAST) { log_importance = verbosity; } |