111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/******************************************************************************
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Copyright (c) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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******************************************************************************/
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "c99defs.h"
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#include "base.h"
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static enum log_type log_output_level = LOG_WARNING;
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static int crashing = 0;
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static void def_log_handler(enum log_type type, const char *format,
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va_list args)
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{
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char out[4096];
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vsnprintf(out, sizeof(out), format, args);
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if (type >= log_output_level) {
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switch (type) {
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case LOG_DEBUG:
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printf("debug: %s\n", out);
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break;
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case LOG_INFO:
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printf("info: %s\n", out);
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break;
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case LOG_WARNING:
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fprintf(stderr, "warning: %s\n", out);
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break;
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case LOG_ERROR:
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fprintf(stderr, "error: %s\n", out);
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}
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}
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}
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#ifdef _MSC_VER
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#define NORETURN __declspec(noreturn)
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#else
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#define NORETURN __attribute__((noreturn))
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#endif
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NORETURN static void def_crash_handler(const char *format, va_list args)
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{
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vfprintf(stderr, format, args);
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exit(0);
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}
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static void (*log_handler)(enum log_type, const char *, va_list) =
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def_log_handler;
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static void (*crash_handler)(const char *, va_list) = def_crash_handler;
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void base_set_log_handler(
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void (*handler)(enum log_type, const char *, va_list))
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{
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log_handler = handler;
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}
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void base_set_crash_handler(void (*handler)(const char *, va_list))
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{
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crash_handler = handler;
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}
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void bcrash(const char *format, ...)
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{
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va_list args;
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if (crashing) {
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fputs("Crashed in the crash handler", stderr);
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exit(2);
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}
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crashing = 1;
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va_start(args, format);
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crash_handler(format, args);
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va_end(args);
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}
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void blog(enum log_type type, const char *format, ...)
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{
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va_list args;
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va_start(args, format);
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log_handler(type, format, args);
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va_end(args);
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}
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