From e81d9fde667e7a06989b63f1091b81a12885f194 Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Thu, 5 Mar 2020 13:54:28 +0100 Subject: [PATCH] common/log: improve time prefix Same as [1]. [1]: https://github.com/swaywm/wlroots/pull/2052 --- common/log.c | 38 ++++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/common/log.c b/common/log.c index 17648e44..59cb9b71 100644 --- a/common/log.c +++ b/common/log.c @@ -36,6 +36,7 @@ bool _sway_assert(bool condition, const char *format, ...) { static bool colored = true; static sway_log_importance_t log_importance = SWAY_ERROR; +static struct timespec start_time = {-1, -1}; static const char *verbosity_colors[] = { [SWAY_SILENT] = "", @@ -44,20 +45,39 @@ static const char *verbosity_colors[] = { [SWAY_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 sway_log_stderr(sway_log_importance_t 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 < SWAY_LOG_IMPORTANCE_LAST) ? verbosity : SWAY_LOG_IMPORTANCE_LAST - 1; @@ -75,6 +95,8 @@ static void sway_log_stderr(sway_log_importance_t verbosity, const char *fmt, } void sway_log_init(sway_log_importance_t verbosity, terminate_callback_t callback) { + init_start_time(); + if (verbosity < SWAY_LOG_IMPORTANCE_LAST) { log_importance = verbosity; }