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// Copyright (c) 2014-2021 Josh Blum
// SPDX-License-Identifier: BSL-1.0
#include <SoapySDR/Logger.h>
#include <cstdio>
#include <cstdlib>
#include <string>
#include <iostream>
/***********************************************************************
* default log level supports environment variable
**********************************************************************/
std::string getEnvImpl(const char *name);
static SoapySDRLogLevel getDefaultLogLevel(void)
{
const std::string logLevelEnvStr = getEnvImpl("SOAPY_SDR_LOG_LEVEL");
if (logLevelEnvStr.empty()) return SOAPY_SDR_INFO;
//check string names
#define checkLogLevelEnvStr(level) \
if (logLevelEnvStr == #level) return SOAPY_SDR_ ## level
checkLogLevelEnvStr(FATAL);
checkLogLevelEnvStr(CRITICAL);
checkLogLevelEnvStr(ERROR);
checkLogLevelEnvStr(WARNING);
checkLogLevelEnvStr(NOTICE);
checkLogLevelEnvStr(INFO);
checkLogLevelEnvStr(DEBUG);
checkLogLevelEnvStr(TRACE);
//check int values
const int logLevelInt = std::atoi(logLevelEnvStr.c_str());
if (logLevelInt < SOAPY_SDR_FATAL) return SOAPY_SDR_FATAL;
if (logLevelInt > SOAPY_SDR_TRACE) return SOAPY_SDR_TRACE;
return SoapySDRLogLevel(logLevelInt);
}
/***********************************************************************
* ANSI terminal colors for default logger
**********************************************************************/
#define ANSI_COLOR_RED "\x1b[31m"
#define ANSI_COLOR_GREEN "\x1b[32m"
#define ANSI_COLOR_YELLOW "\x1b[33m"
#define ANSI_COLOR_BLUE "\x1b[34m"
#define ANSI_COLOR_MAGENTA "\x1b[35m"
#define ANSI_COLOR_CYAN "\x1b[36m"
#define ANSI_COLOR_RESET "\x1b[0m"
#define ANSI_COLOR_BOLD "\x1b[1m"
/***********************************************************************
* Default log message handler implementation
**********************************************************************/
static void defaultLogHandler(const SoapySDRLogLevel logLevel, const char *message)
{
switch (logLevel)
{
case SOAPY_SDR_FATAL: fprintf(stderr, ANSI_COLOR_BOLD ANSI_COLOR_RED "[FATAL] %s" ANSI_COLOR_RESET "\n", message); break;
case SOAPY_SDR_CRITICAL: fprintf(stderr, ANSI_COLOR_BOLD ANSI_COLOR_RED "[CRITICAL] %s" ANSI_COLOR_RESET "\n", message); break;
case SOAPY_SDR_ERROR: fprintf(stderr, ANSI_COLOR_BOLD ANSI_COLOR_RED "[ERROR] %s" ANSI_COLOR_RESET "\n", message); break;
case SOAPY_SDR_WARNING: fprintf(stderr, ANSI_COLOR_BOLD ANSI_COLOR_YELLOW "[WARNING] %s" ANSI_COLOR_RESET "\n", message); break;
case SOAPY_SDR_NOTICE: fprintf(stderr, ANSI_COLOR_GREEN "[NOTICE] %s" ANSI_COLOR_RESET "\n", message); break;
case SOAPY_SDR_INFO: fprintf(stderr, "[INFO] %s\n", message); break;
case SOAPY_SDR_DEBUG: fprintf(stderr, "[DEBUG] %s\n", message); break;
case SOAPY_SDR_TRACE: fprintf(stderr, "[TRACE] %s\n", message); break;
case SOAPY_SDR_SSI: fputs(message, stderr); fflush(stderr); break;
}
}
static SoapySDRLogHandler registeredLogHandler = &defaultLogHandler;
static SoapySDRLogLevel registeredLogLevel = getDefaultLogLevel();
extern "C" {
void SoapySDR_log(const SoapySDRLogLevel logLevel, const char *message)
{
if (logLevel > registeredLogLevel and logLevel != SOAPY_SDR_SSI) return;
return registeredLogHandler(logLevel, message);
}
void SoapySDR_vlogf(const SoapySDRLogLevel logLevel, const char *format, va_list argList)
{
if (logLevel > registeredLogLevel) return;
char message[8*1024];
if (std::vsnprintf(message, sizeof(message), format, argList) > 0)
{
SoapySDR_log(logLevel, message);
}
}
/***********************************************************************
* Replace the current registeredLogHandler with handler.
* If nullptr is passed then the default log handler is restored.
**********************************************************************/
void SoapySDR_registerLogHandler(const SoapySDRLogHandler handler)
{
if (handler) {
registeredLogHandler = handler;
} else {
registeredLogHandler = defaultLogHandler;
}
}
void SoapySDR_setLogLevel(const SoapySDRLogLevel logLevel)
{
registeredLogLevel = logLevel;
}
}
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