/usr/lib/lv2/log.lv2/log.h is in lv2-dev 1.14.0~dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /*
Copyright 2012-2016 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.
*/
/**
@defgroup log Log
Interface for plugins to log via the host; see
<http://lv2plug.in/ns/ext/log> for details.
@{
*/
#ifndef LV2_LOG_H
#define LV2_LOG_H
#define LV2_LOG_URI "http://lv2plug.in/ns/ext/log" ///< http://lv2plug.in/ns/ext/log
#define LV2_LOG_PREFIX LV2_LOG_URI "#" ///< http://lv2plug.in/ns/ext/log#
#define LV2_LOG__Entry LV2_LOG_PREFIX "Entry" ///< http://lv2plug.in/ns/ext/log#Entry
#define LV2_LOG__Error LV2_LOG_PREFIX "Error" ///< http://lv2plug.in/ns/ext/log#Error
#define LV2_LOG__Note LV2_LOG_PREFIX "Note" ///< http://lv2plug.in/ns/ext/log#Note
#define LV2_LOG__Trace LV2_LOG_PREFIX "Trace" ///< http://lv2plug.in/ns/ext/log#Trace
#define LV2_LOG__Warning LV2_LOG_PREFIX "Warning" ///< http://lv2plug.in/ns/ext/log#Warning
#define LV2_LOG__log LV2_LOG_PREFIX "log" ///< http://lv2plug.in/ns/ext/log#log
#include <stdarg.h>
#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @cond */
#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(fmt, arg1)
#endif
/** @endcond */
/**
Opaque data to host data for LV2_Log_Log.
*/
typedef void* LV2_Log_Handle;
/**
Log feature (LV2_LOG__log)
*/
typedef struct _LV2_Log {
/**
Opaque pointer to host data.
This MUST be passed to methods in this struct whenever 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. This function may
be called from any non-realtime context, or from any context if `type`
is @ref LV2_LOG__Trace.
*/
LV2_LOG_FUNC(3, 4)
int (*printf)(LV2_Log_Handle handle,
LV2_URID type,
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. This
function may be called from any non-realtime context, or from any
context if `type` is @ref LV2_LOG__Trace.
*/
LV2_LOG_FUNC(3, 0)
int (*vprintf)(LV2_Log_Handle handle,
LV2_URID type,
const char* fmt,
va_list ap);
} LV2_Log_Log;
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* LV2_LOG_H */
/**
@}
*/
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