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