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