156 lines
3.2 KiB
C
156 lines
3.2 KiB
C
/**
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* Copyright (C) 2011-2012 Juho Vähä-Herttua
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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*===============================================================
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* modified by fduncanh 2023
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include "logger.h"
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#include "compat.h"
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struct logger_s {
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mutex_handle_t lvl_mutex;
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mutex_handle_t cb_mutex;
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int level;
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void *cls;
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logger_callback_t callback;
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};
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logger_t *
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logger_init()
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{
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logger_t *logger = calloc(1, sizeof(logger_t));
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assert(logger);
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MUTEX_CREATE(logger->lvl_mutex);
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MUTEX_CREATE(logger->cb_mutex);
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logger->level = LOGGER_WARNING;
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logger->callback = NULL;
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return logger;
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}
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void
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logger_destroy(logger_t *logger)
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{
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MUTEX_DESTROY(logger->lvl_mutex);
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MUTEX_DESTROY(logger->cb_mutex);
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free(logger);
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}
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void
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logger_set_level(logger_t *logger, int level)
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{
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assert(logger);
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MUTEX_LOCK(logger->lvl_mutex);
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logger->level = level;
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MUTEX_UNLOCK(logger->lvl_mutex);
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}
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int
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logger_get_level(logger_t *logger)
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{
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int level;
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assert(logger);
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MUTEX_LOCK(logger->lvl_mutex);
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level = logger->level;
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MUTEX_UNLOCK(logger->lvl_mutex);
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return level;
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}
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void
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logger_set_callback(logger_t *logger, logger_callback_t callback, void *cls)
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{
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assert(logger);
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MUTEX_LOCK(logger->cb_mutex);
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logger->cls = cls;
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logger->callback = callback;
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MUTEX_UNLOCK(logger->cb_mutex);
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}
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static char *
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logger_utf8_to_local(const char *str)
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{
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char *ret = NULL;
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/* FIXME: This is only implemented on Windows for now */
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#if defined(_WIN32) || defined(_WIN64)
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int wclen, mblen;
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WCHAR *wcstr;
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BOOL failed;
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wclen = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
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wcstr = malloc(sizeof(WCHAR) * wclen);
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MultiByteToWideChar(CP_UTF8, 0, str, -1, wcstr, wclen);
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mblen = WideCharToMultiByte(CP_ACP, 0, wcstr, wclen, NULL, 0, NULL, &failed);
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if (failed) {
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/* Invalid characters in input, conversion failed */
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free(wcstr);
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return NULL;
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}
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ret = malloc(sizeof(CHAR) * mblen);
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WideCharToMultiByte(CP_ACP, 0, wcstr, wclen, ret, mblen, NULL, NULL);
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free(wcstr);
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#endif
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return ret;
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}
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void
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logger_log(logger_t *logger, int level, const char *fmt, ...)
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{
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char buffer[4096];
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va_list ap;
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MUTEX_LOCK(logger->lvl_mutex);
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if (level > logger->level) {
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MUTEX_UNLOCK(logger->lvl_mutex);
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return;
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}
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MUTEX_UNLOCK(logger->lvl_mutex);
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buffer[sizeof(buffer)-1] = '\0';
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer)-1, fmt, ap);
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va_end(ap);
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MUTEX_LOCK(logger->cb_mutex);
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if (logger->callback) {
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logger->callback(logger->cls, level, buffer);
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MUTEX_UNLOCK(logger->cb_mutex);
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} else {
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char *local;
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MUTEX_UNLOCK(logger->cb_mutex);
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local = logger_utf8_to_local(buffer);
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if (local) {
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fprintf(stderr, "%s\n", local);
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free(local);
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} else {
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fprintf(stderr, "%s\n", buffer);
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}
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}
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}
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