PipeWire: spa/debug/context.h Source File

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context.h
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1/* Simple Plugin API */
2/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef SPA_DEBUG_CONTEXT_H
6#define SPA_DEBUG_CONTEXT_H
7
8#include <stdio.h>
9#include <stdarg.h>
10#include <ctype.h>
11
12#include <spa/utils/defs.h>
13
14#ifdef __cplusplus
15extern "C" {
16#endif
17
22
23#ifndef spa_debugn
24#define spa_debugn(_fmt,...) printf((_fmt), ## __VA_ARGS__)
25#endif
26#ifndef spa_debug
27#define spa_debug(_fmt,...) spa_debugn(_fmt"\n", ## __VA_ARGS__)
28#endif
29
30
31#ifndef SPA_API_DEBUG_CONTEXT
32 #ifdef SPA_API_IMPL
33 #define SPA_API_DEBUG_CONTEXT SPA_API_IMPL
34 #else
35 #define SPA_API_DEBUG_CONTEXT static inline
36 #endif
37#endif
38
39struct spa_debug_context {
40 void (*log) (struct spa_debug_context *ctx, const char *fmt, ...) SPA_PRINTF_FUNC(2, 3);
41};
42
43#define spa_debugc(_c,_fmt,...) (_c)?((_c)->log((_c),_fmt, ## __VA_ARGS__)):(void)spa_debug(_fmt, ## __VA_ARGS__)
44
45 SPA_API_DEBUG_CONTEXT void spa_debugc_error_location(struct spa_debug_context *c,
46 struct spa_error_location *loc)
47{
48 int i, skip = loc->col > 80 ? loc->col - 40 : 0, lc = loc->col-skip-1;
49 char buf[80];
50
51 for (i = 0; (size_t)i < sizeof(buf)-1 && (size_t)(i + skip) < loc->len; i++) {
52 char ch = loc->location[i + skip];
53 if (ch == '\n' || ch == '\0')
54 break;
55 buf[i] = isspace(ch) ? ' ' : ch;
56 }
57 buf[i] = '\0';
58 spa_debugc(c, "line:%6d | %s%s", loc->line, skip ? "..." : "", buf);
59 for (i = 0; buf[i]; i++)
60 buf[i] = i < lc ? '-' : i == lc ? '^' : ' ';
61 spa_debugc(c, "column:%4d |-%s%s", loc->col, skip ? "---" : "", buf);
62}
63
67
68#ifdef __cplusplus
69} /* extern "C" */
70#endif
71
72#endif /* SPA_DEBUG_CONTEXT_H */
defs.h
spa/utils/defs.h
spa_debugc
#define spa_debugc(_c, _fmt,...)
Definition context.h:50
spa_debugc_error_location
SPA_API_DEBUG_CONTEXT void spa_debugc_error_location(struct spa_debug_context *c, struct spa_error_location *loc)
Definition context.h:52
SPA_API_DEBUG_CONTEXT
#define SPA_API_DEBUG_CONTEXT
Definition context.h:42
SPA_PRINTF_FUNC
#define SPA_PRINTF_FUNC(fmt, arg1)
Definition defs.h:297
spa_debug_context
Definition context.h:46
spa_debug_context::log
void(* log)(struct spa_debug_context *ctx, const char *fmt,...)
Definition context.h:47
spa_error_location
Definition defs.h:443
spa_error_location::line
int line
Definition defs.h:444
spa_error_location::location
const char * location
Definition defs.h:447
spa_error_location::col
int col
Definition defs.h:445
spa_error_location::len
size_t len
Definition defs.h:446