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context.h
Go to the documentation of this file.
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/* Simple Plugin API */
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/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef SPA_DEBUG_CONTEXT_H
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#define SPA_DEBUG_CONTEXT_H
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include <
spa/utils/defs.h
>
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#ifndef spa_debugn
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#define spa_debugn(_fmt,...) printf((_fmt), ## __VA_ARGS__)
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#endif
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#ifndef spa_debug
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#define spa_debug(_fmt,...) spa_debugn(_fmt"\n", ## __VA_ARGS__)
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#endif
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struct
spa_debug_context
{
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void (*
log
) (
struct
spa_debug_context
*ctx,
const
char
*fmt, ...)
SPA_PRINTF_FUNC
(2, 3);
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};
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#define spa_debugc(_c,_fmt,...) (_c)?((_c)->log((_c),_fmt, ## __VA_ARGS__)):(void)spa_debug(_fmt, ## __VA_ARGS__)
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static
inline
void
spa_debugc_error_location
(
struct
spa_debug_context
*c,
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struct
spa_error_location
*loc)
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{
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int
i, skip = loc->
col
> 80 ? loc->
col
- 40 : 0, lc = loc->
col
-skip-1;
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char
buf[80];
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for
(i = 0; (size_t)i <
sizeof
(buf)-1 && (size_t)(i + skip) < loc->
len
; i++) {
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char
ch = loc->
location
[i + skip];
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if
(ch ==
'\n'
|| ch ==
'\0'
)
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break
;
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buf[i] = isspace(ch) ?
' '
: ch;
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}
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buf[i] =
'\0'
;
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spa_debugc
(c,
"line:%6d | %s%s"
, loc->
line
, skip ?
"..."
:
""
, buf);
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for
(i = 0; buf[i]; i++)
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buf[i] = i < lc ?
'-'
: i == lc ?
'^'
:
' '
;
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spa_debugc
(c,
"column:%4d |-%s%s"
, loc->
col
, skip ?
"---"
:
""
, buf);
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}
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#ifdef __cplusplus
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}
/* extern "C" */
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#endif
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#endif
/* SPA_DEBUG_CONTEXT_H */
defs.h
spa/utils/defs.h
spa_debugc_error_location
static void spa_debugc_error_location(struct spa_debug_context *c, struct spa_error_location *loc)
Definition
context.h:40
spa_debugc
#define spa_debugc(_c, _fmt,...)
Definition
context.h:38
SPA_PRINTF_FUNC
#define SPA_PRINTF_FUNC(fmt, arg1)
Definition
defs.h:295
spa_debug_context
Definition
context.h:34
spa_debug_context::log
void(* log)(struct spa_debug_context *ctx, const char *fmt,...)
Definition
context.h:35
spa_error_location
Definition
defs.h:414
spa_error_location::line
int line
Definition
defs.h:415
spa_error_location::location
const char * location
Definition
defs.h:418
spa_error_location::col
int col
Definition
defs.h:416
spa_error_location::len
size_t len
Definition
defs.h:417
spa
debug
context.h
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