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- /*
- * Copyright (c) 2017 rxi
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
- #include <string.h>
- #include <time.h>
-
- #include <log.h>
-
- static struct {
- void *udata;
- log_LockFn lock;
- FILE *fp;
- int level;
- int quiet;
- } L;
-
-
- static const char *level_names[] = {
- "TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL"
- };
-
- #ifdef LOG_USE_COLOR
- static const char *level_colors[] = {
- "\x1b[94m", "\x1b[36m", "\x1b[32m", "\x1b[33m", "\x1b[31m", "\x1b[35m"
- };
- #endif
-
-
- static void lock(void) {
- if (L.lock) {
- L.lock(L.udata, 1);
- }
- }
-
-
- static void unlock(void) {
- if (L.lock) {
- L.lock(L.udata, 0);
- }
- }
-
-
- void log_set_udata(void *udata) {
- L.udata = udata;
- }
-
-
- void log_set_lock(log_LockFn fn) {
- L.lock = fn;
- }
-
-
- void log_set_fp(FILE *fp) {
- L.fp = fp;
- }
-
-
- void log_set_level(int level) {
- L.level = level;
- }
-
-
- void log_set_quiet(int enable) {
- L.quiet = enable ? 1 : 0;
- }
-
-
- void log_log(int level, const char *file, int line, const char *fmt, ...) {
- if (level < L.level) {
- return;
- }
-
- /* Acquire lock */
- lock();
-
- /* Get current time */
- time_t t = time(NULL);
- struct tm *lt = localtime(&t);
-
- /* Log to stderr */
- if (!L.quiet) {
- va_list args;
- char buf[16];
- buf[strftime(buf, sizeof(buf), "%H:%M:%S", lt)] = '\0';
- #ifdef LOG_USE_COLOR
- fprintf(
- stderr, "%s %s%-5s\x1b[0m \x1b[90m%s:%d:\x1b[0m ",
- buf, level_colors[level], level_names[level], file, line);
- #else
- fprintf(stderr, "%s %-5s %s:%d: ", buf, level_names[level], file, line);
- #endif
- va_start(args, fmt);
- vfprintf(stderr, fmt, args);
- va_end(args);
- fprintf(stderr, "\n");
- fflush(stderr);
- }
-
- /* Log to file */
- if (L.fp) {
- va_list args;
- char buf[32];
- buf[strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", lt)] = '\0';
- fprintf(L.fp, "%s %-5s %s:%d: ", buf, level_names[level], file, line);
- va_start(args, fmt);
- vfprintf(L.fp, fmt, args);
- va_end(args);
- fprintf(L.fp, "\n");
- fflush(L.fp);
- }
-
- /* Release lock */
- unlock();
- }
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