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https://github.com/swaywm/sway.git
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2dc4978d8a
Because meson does not provide a simple way to get the relative build path, it is computed with a pair of foreach loops. As meson does not have a simple way to compute string length (except via underscorify and 63 split operations), the build script uses a shell command instead. If the compiler does not suppot -fmacro-prefix-map, then fall back to passing in the relative path prefix, and use its length to offset the uses of __FILE__ in log messages so that the build path is at least still not included in the logs. This is significantly more efficient than calling _sway_strip_path.
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
#define _POSIX_C_SOURCE 199506L
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include "log.h"
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static terminate_callback_t log_terminate = exit;
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void _sway_abort(const char *format, ...) {
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va_list args;
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va_start(args, format);
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_sway_vlog(SWAY_ERROR, format, args);
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va_end(args);
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log_terminate(EXIT_FAILURE);
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}
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bool _sway_assert(bool condition, const char *format, ...) {
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if (condition) {
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return true;
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}
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va_list args;
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va_start(args, format);
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_sway_vlog(SWAY_ERROR, format, args);
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va_end(args);
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#ifndef NDEBUG
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raise(SIGABRT);
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#endif
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return false;
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}
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static bool colored = true;
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static sway_log_importance_t log_importance = SWAY_ERROR;
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static const char *verbosity_colors[] = {
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[SWAY_SILENT] = "",
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[SWAY_ERROR ] = "\x1B[1;31m",
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[SWAY_INFO ] = "\x1B[1;34m",
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[SWAY_DEBUG ] = "\x1B[1;30m",
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};
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static void sway_log_stderr(sway_log_importance_t verbosity, const char *fmt,
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va_list args) {
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if (verbosity > log_importance) {
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return;
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}
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// prefix the time to the log message
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struct tm result;
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time_t t = time(NULL);
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struct tm *tm_info = localtime_r(&t, &result);
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char buffer[26];
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// generate time prefix
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strftime(buffer, sizeof(buffer), "%F %T - ", tm_info);
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fprintf(stderr, "%s", buffer);
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unsigned c = (verbosity < SWAY_LOG_IMPORTANCE_LAST) ? verbosity :
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SWAY_LOG_IMPORTANCE_LAST - 1;
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if (colored && isatty(STDERR_FILENO)) {
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fprintf(stderr, "%s", verbosity_colors[c]);
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}
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vfprintf(stderr, fmt, args);
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if (colored && isatty(STDERR_FILENO)) {
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fprintf(stderr, "\x1B[0m");
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}
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fprintf(stderr, "\n");
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}
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void sway_log_init(sway_log_importance_t verbosity, terminate_callback_t callback) {
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if (verbosity < SWAY_LOG_IMPORTANCE_LAST) {
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log_importance = verbosity;
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}
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if (callback) {
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log_terminate = callback;
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}
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}
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void _sway_vlog(sway_log_importance_t verbosity, const char *fmt, va_list args) {
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sway_log_stderr(verbosity, fmt, args);
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}
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void _sway_log(sway_log_importance_t verbosity, const char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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sway_log_stderr(verbosity, fmt, args);
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va_end(args);
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}
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