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/* logging - Functions for logging/error reporting
*
* Copyright (C) 2015 Jon Lund Steffensen <jonlst@gmail.com>
*
* 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, see <http://www.gnu.org/licenses/>.
* */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "logging.h"
#include "logging-private.h"
static QSlog_func global_log_func = NULL;
static void *global_log_data = NULL;
void QSlog_set_handler(QSlog_func log_func, void *data)
{
global_log_func = log_func;
global_log_data = data;
}
void QSlogv(const char *format, va_list args)
{
va_list args2;
va_copy(args2, args);
int n = vsnprintf(NULL, 0, format, args2);
if (n < 0) {
perror("vsnprintf");
abort();
}
va_end(args2);
char *buffer = malloc(n+1);
if (buffer == NULL) {
perror("malloc");
abort();
}
n = vsnprintf(buffer, n+1, format, args);
if (n < 0) {
perror("vsnprintf");
free(buffer);
abort();
}
if (global_log_func != NULL) {
global_log_func(buffer, global_log_data);
} else {
fprintf(stderr, "%s\n", buffer);
}
free(buffer);
}
void QSlog(const char *format, ...)
{
va_list args;
va_start(args, format);
QSlogv(format, args);
va_end(args);
}
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