Mercurial > molko
view src/libmlk-core/core/trace.c @ 419:1b4e61bdb9ab
core: introduce err.h
author | David Demelier <markand@malikania.fr> |
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date | Wed, 12 Oct 2022 15:06:18 +0200 |
parents | 460c78706989 |
children |
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/* * trace.h -- non-fatal message logs * * Copyright (c) 2020-2022 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include <stdio.h> #include "trace.h" static void default_handler(const char *line) { assert(line); puts(line); } void (*trace_handler)(const char *) = default_handler; void *trace_data = NULL; void tracef(const char *fmt, ...) { assert(fmt); va_list ap; if (!trace_handler) return; va_start(ap, fmt); traceva(fmt, ap); va_end(ap); } void traceva(const char *fmt, va_list ap) { assert(fmt); char buf[TRACE_LINE_MAX]; if (!trace_handler) return; vsnprintf(buf, sizeof (buf), fmt, ap); trace_handler(buf); }