log.h
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- /* FluidSynth - A Software Synthesizer
- *
- * Copyright (C) 2003 Peter Hanappe and others.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public License
- * as published by the Free Software Foundation; either version 2 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA
- */
- #ifndef _FLUIDSYNTH_LOG_H
- #define _FLUIDSYNTH_LOG_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- * @file log.h
- * @brief Logging interface
- *
- * The default logging function of the fluidsynth prints its messages
- * to the stderr. The synthesizer uses five level of messages: #FLUID_PANIC,
- * #FLUID_ERR, #FLUID_WARN, #FLUID_INFO, and #FLUID_DBG.
- *
- * A client application can install a new log function to handle the
- * messages differently. In the following example, the application
- * sets a callback function to display #FLUID_PANIC messages in a dialog,
- * and ignores all other messages by setting the log function to
- * NULL:
- *
- * @code
- * fluid_set_log_function(FLUID_PANIC, show_dialog, (void*) root_window);
- * fluid_set_log_function(FLUID_ERR, NULL, NULL);
- * fluid_set_log_function(FLUID_WARN, NULL, NULL);
- * fluid_set_log_function(FLUID_DBG, NULL, NULL);
- * @endcode
- */
- /**
- * FluidSynth log levels.
- */
- enum fluid_log_level {
- FLUID_PANIC, /**< The synth can't function correctly any more */
- FLUID_ERR, /**< Serious error occurred */
- FLUID_WARN, /**< Warning */
- FLUID_INFO, /**< Verbose informational messages */
- FLUID_DBG, /**< Debugging messages */
- LAST_LOG_LEVEL
- };
- /**
- * Log function handler callback type used by fluid_set_log_function().
- * @param level Log level (#fluid_log_level)
- * @param message Log message text
- * @param data User data pointer supplied to fluid_set_log_function().
- */
- typedef void (*fluid_log_function_t)(int level, char* message, void* data);
- FLUIDSYNTH_API
- fluid_log_function_t fluid_set_log_function(int level, fluid_log_function_t fun, void* data);
- FLUIDSYNTH_API void fluid_default_log_function(int level, char* message, void* data);
- FLUIDSYNTH_API int fluid_log(int level, const char *fmt, ...);
- #ifdef __cplusplus
- }
- #endif
- #endif /* _FLUIDSYNTH_LOG_H */