/*  Copyright (C) 2016 Paul Brossier <piem@aubio.org>   This file is part of aubio.   aubio 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.   aubio 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 aubio.  If not, see <http://www.gnu.org/licenses/>. */ #include "aubio_priv.h"#include "log.h" /** array of pointers to logging functions, one per level */static aubio_log_function_t aubio_log_function[AUBIO_LOG_LAST_LEVEL];/** array of pointers to closure passed to logging functions, one per level */static void* aubio_log_user_data[AUBIO_LOG_LAST_LEVEL];/** buffer for logging messages */static char aubio_log_buffer[512]; /** private function used by default by logging functions */voidaubio_default_log(sint_t level, const char_t *message, void * data UNUSED){  FILE *out;  USED(data);  out = stdout;  if (level == AUBIO_LOG_ERR || level == AUBIO_LOG_DBG || level == AUBIO_LOG_WRN) {    out = stderr;  }  fprintf(out, "%s", message);  //fflush(out);} uint_taubio_log(sint_t level, const char_t *fmt, ...){  aubio_log_function_t fun;   va_list args;  va_start(args, fmt);  vsnprintf(aubio_log_buffer, sizeof(aubio_log_buffer), fmt, args);  va_end(args);   if ((level >= 0) && (level < AUBIO_LOG_LAST_LEVEL)) {    fun = aubio_log_function[level];    if (fun != NULL) {      (*fun)(level, aubio_log_buffer, aubio_log_user_data[level]);    } else {      aubio_default_log(level, aubio_log_buffer, NULL);    }  }  return AUBIO_FAIL;} voidaubio_log_reset(void){  uint_t i;  for (i = 0; i < AUBIO_LOG_LAST_LEVEL; i++) {    aubio_log_set_level_function(i, aubio_default_log, NULL);  }} aubio_log_function_taubio_log_set_level_function(sint_t level, aubio_log_function_t fun, void * data){  aubio_log_function_t old = NULL;  if ((level >= 0) && (level < AUBIO_LOG_LAST_LEVEL)) {    old = aubio_log_function[level];    aubio_log_function[level] = fun;    aubio_log_user_data[level] = data;  }  return old;} voidaubio_log_set_function(aubio_log_function_t fun, void * data) {  uint_t i;  for (i = 0; i < AUBIO_LOG_LAST_LEVEL; i++) {    aubio_log_set_level_function(i, fun, data);  }}