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/*
* This file is part of the bladeRF project:
* http://www.github.com/nuand/bladeRF
*
* Copyright (C) 2013 Nuand LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#include <string.h>
#include "conversions.h"
#include "version.h"
#if !defined(WIN32) && !defined(__CYGWIN__) && defined(LOG_SYSLOG_ENABLED)
#include <syslog.h>
#endif
#include "log.h"
#if !defined(WIN32) && !defined(__CYGWIN__)
#if !defined(__clang__) && !defined(__GNUC__)
#error init/fini mechanism not known to work for your compiler.
#endif
#define __init __attribute__((constructor))
#define __fini __attribute__((destructor))
#else
/* Corresponding syntax for Windows (TBD) */
#define __init
#define __fini
#endif
#ifdef LOG_SYSLOG_ENABLED
# define DEF_LOG_LEVEL BLADERF_LOG_LEVEL_WARNING
#else
# define DEF_LOG_LEVEL BLADERF_LOG_LEVEL_INFO
#endif
#define ENV_LOG_LEVEL "BLADERF_LOG_LEVEL"
/* Module initializers/deinitializers. When used as library (who don't have
* a natural entry/exit function) these are used to initialize
* deinitialize. Use to set predefined/default states and cleanup.
*
* This will work with shared libraries as well as with static as they get
* invoked by RTL load/unload, with or without C++ code (i.e. functions will
* play nice with C++ normal ctors/dtors).
*
* Keep log in to at least once per new build-/run-environment assert that
* the mechanism works.
*/
static int get_loglevel(void) {
int log_level = DEF_LOG_LEVEL;
if ((getenv(ENV_LOG_LEVEL) != NULL)
&& (strlen(getenv(ENV_LOG_LEVEL)) > 0)) {
bool valid_value;
log_level = str2loglevel(getenv(ENV_LOG_LEVEL), &valid_value);
if (!valid_value) {
log_level = DEF_LOG_LEVEL;
}
}
return log_level;
}
void __init __bladerf_init(void)
{
int log_level = get_loglevel();
#if !defined(WIN32) && !defined(__CYGWIN__) && defined(LOG_SYSLOG_ENABLED)
openlog("bladeRF",
LOG_CONS | LOG_NDELAY | LOG_NOWAIT | LOG_PERROR | LOG_PID,
LOG_USER);
#endif
bladerf_log_set_verbosity(log_level);
log_debug("libbladeRF %s: initializing\n", LIBBLADERF_VERSION);
}
void __fini __bladerf_fini(void)
{
int log_level = get_loglevel();
bladerf_log_set_verbosity(log_level);
log_debug("libbladeRF %s: deinitializing\n", LIBBLADERF_VERSION);
fflush(NULL);
#if !defined(WIN32) && !defined(__CYGWIN__) && defined(LOG_SYSLOG_ENABLED)
closelog();
#endif
}
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