160 lines
3.5 KiB
C
160 lines
3.5 KiB
C
#define _POSIX_C_SOURCE 1
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#include <errno.h>
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#include <libgen.h>
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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 <unistd.h>
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#include <string.h>
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#include <time.h>
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#include "log.h"
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#include "sway.h"
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#include "readline.h"
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static int colored = 1;
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static log_importance_t loglevel_default = L_ERROR;
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static log_importance_t v = L_SILENT;
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static const char *verbosity_colors[] = {
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[L_SILENT] = "",
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[L_ERROR ] = "\x1B[1;31m",
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[L_INFO ] = "\x1B[1;34m",
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[L_DEBUG ] = "\x1B[1;30m",
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};
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void init_log(log_importance_t verbosity) {
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if (verbosity != L_DEBUG) {
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// command "debuglog" needs to know the user specified log level when
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// turning off debug logging.
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loglevel_default = verbosity;
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}
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v = verbosity;
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}
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void set_log_level(log_importance_t verbosity) {
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v = verbosity;
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}
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log_importance_t get_log_level(void) {
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return v;
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}
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void reset_log_level(void) {
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v = loglevel_default;
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}
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bool toggle_debug_logging(void) {
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v = (v == L_DEBUG) ? loglevel_default : L_DEBUG;
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return (v == L_DEBUG);
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}
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void sway_log_colors(int mode) {
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colored = (mode == 1) ? 1 : 0;
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}
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void _sway_vlog(const char *filename, int line, log_importance_t verbosity,
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const char *format, va_list args) {
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if (verbosity <= v) {
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// prefix the time to the log message
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static struct tm result;
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static time_t t;
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static struct tm *tm_info;
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char buffer[26];
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// get current time
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t = time(NULL);
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// convert time to local time (determined by the locale)
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tm_info = localtime_r(&t, &result);
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// generate time prefix
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strftime(buffer, sizeof(buffer), "%x %X - ", tm_info);
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fprintf(stderr, "%s", buffer);
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unsigned int c = verbosity;
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if (c > sizeof(verbosity_colors) / sizeof(char *) - 1) {
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c = sizeof(verbosity_colors) / sizeof(char *) - 1;
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}
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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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if (filename && line) {
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const char *file = filename + strlen(filename);
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while (file != filename && *file != '/') {
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--file;
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}
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if (*file == '/') {
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++file;
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}
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fprintf(stderr, "[%s:%d] ", file, line);
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}
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vfprintf(stderr, format, 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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}
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void _sway_log(const char *filename, int line, log_importance_t verbosity, const char* format, ...) {
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va_list args;
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va_start(args, format);
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_sway_vlog(filename, line, verbosity, format, args);
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va_end(args);
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}
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void _sway_abort(const char *filename, int line, const char* format, ...) {
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va_list args;
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va_start(args, format);
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_sway_vlog(filename, line, L_ERROR, format, args);
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va_end(args);
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sway_terminate(EXIT_FAILURE);
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}
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void sway_log_errno(log_importance_t verbosity, char* format, ...) {
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if (verbosity <= v) {
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unsigned int c = verbosity;
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if (c > sizeof(verbosity_colors) / sizeof(char *) - 1) {
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c = sizeof(verbosity_colors) / sizeof(char *) - 1;
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}
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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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va_list args;
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va_start(args, format);
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vfprintf(stderr, format, args);
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va_end(args);
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fprintf(stderr, ": ");
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fprintf(stderr, "%s", strerror(errno));
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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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}
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bool _sway_assert(bool condition, const char *filename, int line, 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(filename, line, L_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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