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[common] provide debug print methods for dependent libraries to use

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This commit is contained in:
Geoffrey McRae 2021-12-29 16:01:42 +11:00
parent 17b77cfbc1
commit 2ed3c82de0
3 changed files with 73 additions and 0 deletions
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1
common/CMakeLists.txt
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@ -34,6 +34,7 @@ set(COMMON_SOURCES
src/ringbuffer.c
src/vector.c
src/cpuinfo.c
src/debug.c
)
add_library(lg_common STATIC ${COMMON_SOURCES})

9
common/include/common/debug.h
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@ -131,4 +131,13 @@ void printBacktrace(void);
#define DEBUG_PROTO(fmt, ...) do {} while(0)
#endif
void debug_info(const char * file, unsigned int line, const char * function,
const char * format, ...) __attribute__((format (printf, 4, 5)));
void debug_warn(const char * file, unsigned int line, const char * function,
const char * format, ...) __attribute__((format (printf, 4, 5)));
void debug_error(const char * file, unsigned int line, const char * function,
const char * format, ...) __attribute__((format (printf, 4, 5)));
#endif

63
common/src/debug.c Normal file
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@ -0,0 +1,63 @@
/* Looking Glass
* Copyright © 2017-2021 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "common/debug.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
inline static void debug_level(enum DebugLevel level, const char * file,
unsigned int line, const char * function, const char * format, va_list va)
{
const char * f = strrchr(file, DIRECTORY_SEPARATOR) + 1;
fprintf(stderr, "%s%12" PRId64 "%20s:%-4u | %-30s | ",
debug_lookup[level], microtime(), f,
line, function);
vfprintf(stderr, format, va);
fprintf(stderr, "%s\n", debug_lookup[DEBUG_LEVEL_NONE]);
}
void debug_info(const char * file, unsigned int line, const char * function,
const char * format, ...)
{
va_list va;
va_start(va, format);
debug_level(DEBUG_LEVEL_INFO, file, line, function, format, va);
va_end(va);
}
void debug_warn(const char * file, unsigned int line, const char * function,
const char * format, ...)
{
va_list va;
va_start(va, format);
debug_level(DEBUG_LEVEL_WARN, file, line, function, format, va);
va_end(va);
}
void debug_error(const char * file, unsigned int line, const char * function,
const char * format, ...)
{
va_list va;
va_start(va, format);
debug_level(DEBUG_LEVEL_ERROR, file, line, function, format, va);
va_end(va);
}