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/*
* Tox DHT bootstrap daemon.
* Logging utility with support of multiple logging backends.
*/
/*
* Copyright © 2016-2018 The TokTok team.
* Copyright © 2015-2016 Tox project.
*
* This file is part of Tox, the free peer to peer instant messenger.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*/
#include "log.h"
#include "log_backend_stdout.h"
#include "log_backend_syslog.h"
#define INVALID_BACKEND (LOG_BACKEND)-1u
static LOG_BACKEND current_backend = INVALID_BACKEND;
bool log_open(LOG_BACKEND backend)
{
if (current_backend != INVALID_BACKEND) {
return false;
}
current_backend = backend;
switch (current_backend) {
case LOG_BACKEND_STDOUT:
// nothing to do here
break;
case LOG_BACKEND_SYSLOG:
log_backend_syslog_open();
break;
}
return true;
}
bool log_close(void)
{
if (current_backend == INVALID_BACKEND) {
return false;
}
switch (current_backend) {
case LOG_BACKEND_STDOUT:
// nothing to do here
break;
case LOG_BACKEND_SYSLOG:
log_backend_syslog_close();
break;
}
current_backend = INVALID_BACKEND;
return true;
}
bool log_write(LOG_LEVEL level, const char *format, ...)
{
if (current_backend == INVALID_BACKEND) {
return false;
}
va_list args;
va_start(args, format);
switch (current_backend) {
case LOG_BACKEND_STDOUT:
log_backend_stdout_write(level, format, args);
break;
case LOG_BACKEND_SYSLOG:
log_backend_syslog_write(level, format, args);
break;
}
va_end(args);
return true;
}
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