diff options
Diffstat (limited to 'lv2/lv2plug.in/ns/ext/log/log.h')
-rw-r--r-- | lv2/lv2plug.in/ns/ext/log/log.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/lv2/lv2plug.in/ns/ext/log/log.h b/lv2/lv2plug.in/ns/ext/log/log.h new file mode 100644 index 0000000..c139a27 --- /dev/null +++ b/lv2/lv2plug.in/ns/ext/log/log.h @@ -0,0 +1,91 @@ +/* + Copyright 2012 David Robillard <http://drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +/** + @file log.h C header for the LV2 Log extension + <http://lv2plug.in/ns/ext/log>. +*/ + +#ifndef LV2_LOG_H +#define LV2_LOG_H + +#define LV2_LOG_URI "http://lv2plug.in/ns/ext/log" +#define LV2_LOG_LOG_URI LV2_LOG_URI "#log" +#define LV2_LOG_ERROR_URI LV2_LOG_URI "#Error" +#define LV2_LOG_INFO_URI LV2_LOG_URI "#Info" +#define LV2_LOG_WARN_URI LV2_LOG_URI "#Warn" + +#include <stdarg.h> + +#include "lv2/lv2plug.in/ns/ext/urid/urid.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef __GNUC__ +/** Allow type checking of printf-like functions. */ +# define LV2_LOG_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1))) +#else +# define LV2_LOG_FUNC +#endif + +/** + Opaque data to host data for LV2_Log_Log. +*/ +typedef void* LV2_Log_Handle; + +/** + Log (http://lv2plug.in/ns/ext/log#log). +*/ +typedef struct _LV2_Log { + /** + Opaque pointer to host data. + + This MUST be passed to methods in this struct henever they are called. + Otherwise, it must not be interpreted in any way. + */ + LV2_Log_Handle handle; + + /** + Log a message, passing format parameters directly. + + The API of this function matches that of the standard C printf + function, except for the addition of the first two parameters. + */ + LV2_LOG_FUNC(3, 4) + int (*printf)(LV2_Log_Handle handle, + LV2_URID level, + const char* fmt, ...); + + /** + Log a message, passing format parameters in a va_list. + + The API of this function matches that of the standard C vprintf + function, except for the addition of the first two parameters. + */ + LV2_LOG_FUNC(3, 0) + int (*vprintf)(LV2_Log_Handle handle, + LV2_URID level, + const char* fmt, + va_list ap); +} LV2_Log_Log; + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* LV2_LOG_H */ |