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/*
* SRT - Secure, Reliable, Transport
* Copyright (c) 2018 Haivision Systems Inc.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
*/
/*****************************************************************************
written by
Haivision Systems Inc.
*****************************************************************************/
#ifndef INC_SRT_LOGGING_API_H
#define INC_SRT_LOGGING_API_H
// These are required for access functions:
// - adding FA (requires set)
// - setting a log stream (requires iostream)
#ifdef __cplusplus
#include <set>
#include <iostream>
#endif
#ifdef _WIN32
#include "win/syslog_defs.h"
#else
#include <syslog.h>
#endif
// Syslog is included so that it provides log level names.
// Haivision log standard requires the same names plus extra one:
#ifndef LOG_DEBUG_TRACE
#define LOG_DEBUG_TRACE 8
#endif
// It's unused anyway, just for the record.
#define SRT_LOG_LEVEL_MIN LOG_CRIT
#define SRT_LOG_LEVEL_MAX LOG_DEBUG
// Flags
#define SRT_LOGF_DISABLE_TIME 1
#define SRT_LOGF_DISABLE_THREADNAME 2
#define SRT_LOGF_DISABLE_SEVERITY 4
#define SRT_LOGF_DISABLE_EOL 8
// Handler type.
typedef void SRT_LOG_HANDLER_FN(void* opaque, int level, const char* file, int line, const char* area, const char* message);
#ifdef __cplusplus
namespace srt_logging
{
struct LogFA
{
private:
int value;
public:
operator int() const { return value; }
LogFA(int v): value(v)
{
// Generally this was what it has to be used for.
// Unfortunately it couldn't be agreed with the
//logging_fa_all.insert(v);
}
};
const LogFA LOGFA_GENERAL = 0;
namespace LogLevel
{
// There are 3 general levels:
// A. fatal - this means the application WILL crash.
// B. unexpected:
// - error: this was unexpected for the library
// - warning: this was expected by the library, but may be harmful for the application
// C. expected:
// - note: a significant, but rarely occurring event
// - debug: may occur even very often and enabling it can harm performance
enum type
{
fatal = LOG_CRIT,
// Fatal vs. Error: with Error, you can still continue.
error = LOG_ERR,
// Error vs. Warning: Warning isn't considered a problem for the library.
warning = LOG_WARNING,
// Warning vs. Note: Note means something unusual, but completely correct behavior.
note = LOG_NOTICE,
// Note vs. Debug: Debug may occur even multiple times in a millisecond.
// (Well, worth noting that Error and Warning potentially also can).
debug = LOG_DEBUG
};
}
class Logger;
}
#endif
#endif
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