logger.h 3.11 KB
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/*
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 *  Copyright (C) 2004-2015 Savoir-faire Linux Inc.
 *
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 *  Author: Julien Bonjean <julien.bonjean@savoirfairelinux.com>
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 *  Author: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
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 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
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 */

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#pragma once
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#ifdef __cplusplus
extern "C" {
#endif

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#include <stdarg.h>

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#define LOGFILE "dring"

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/**
 * Print something, coloring it depending on the level
 */
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void logger(const int level, const char* format, ...)
#ifdef __GNUC__
    __attribute__((format(printf, 2, 3)))
#endif
    ;
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void vlogger(const int level, const char* format, va_list);
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/**
 * Allow writing on the console
 */
void setConsoleLog(int c);

/**
 * When debug mode is not set, logging will not print anything
 */
void setDebugMode(int d);
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/**
 * Return the current mode
 */
int getDebugMode(void);
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/**
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 * Thread-safe function to print the stringified contents of errno
 */
void strErr();
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#define STR(EXP) #EXP
#define XSTR(X) STR(X)
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// Do not remove the "| " in following without modifying vlogger() code
#define LOG_FORMAT(M, ...) FILE_NAME ":" XSTR(__LINE__) "| " M, ##__VA_ARGS__
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#ifdef __ANDROID__
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#include <android/log.h>
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#ifndef APP_NAME
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#define APP_NAME "libdring"
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#endif /* APP_NAME */
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#undef LOG_FORMAT
#define LOG_FORMAT(M, ...) "%s:%d | " M, FILE_NAME, __LINE__, ##__VA_ARGS__

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// Avoid printing whole path on android
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#define FILE_NAME (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
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// because everyone likes reimplementing the wheel
#define LOG_ERR     ANDROID_LOG_ERROR
#define LOG_WARNING ANDROID_LOG_WARN
#define LOG_INFO    ANDROID_LOG_INFO
#define LOG_DEBUG   ANDROID_LOG_DEBUG

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#define LOGGER(M, LEVEL, ...) __android_log_print(LEVEL, APP_NAME, LOG_FORMAT(M, ##__VA_ARGS__))
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#elif defined(_WIN32)
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#include "winsyslog.h"
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#define LOG_ERR     EVENTLOG_ERROR_TYPE
#define LOG_WARNING EVENTLOG_WARNING_TYPE
#define LOG_INFO    EVENTLOG_INFORMATION_TYPE
#define LOG_DEBUG   EVENTLOG_SUCCESS

#define FILE_NAME __FILE__

#define LOGGER(M, LEVEL, ...) logger(LEVEL, LOG_FORMAT(M, ##__VA_ARGS__))
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#else
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#include <syslog.h>

#define FILE_NAME __FILE__

#define LOGGER(M, LEVEL, ...) logger(LEVEL, LOG_FORMAT(M, ##__VA_ARGS__))

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#endif /* __ANDROID__ _WIN32 */
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#define RING_ERR(M, ...)   LOGGER(M, LOG_ERR, ##__VA_ARGS__)
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#define RING_WARN(M, ...)  LOGGER(M, LOG_WARNING, ##__VA_ARGS__)
#define RING_INFO(M, ...)  LOGGER(M, LOG_INFO, ##__VA_ARGS__)
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#define RING_DBG(M, ...)   LOGGER(M, LOG_DEBUG, ##__VA_ARGS__)
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#ifdef __cplusplus
}
#endif