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/*
* BSD 2-Clause License
*
* Copyright (C) 2014-2016, Lazaros Koromilas <lostd@2f30.org>
* Copyright (C) 2014-2016, Dimitris Papastamos <sin@2f30.org>
* Copyright (C) 2016-2020, Arun Prakash Jana <engineerarun@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#ifdef DBGMODE
static int DEBUG_FD;
static int xprintf(int fd, const char *fmt, ...)
{
char buf[BUFSIZ];
int r;
va_list ap;
va_start(ap, fmt);
r = vsnprintf(buf, sizeof(buf), fmt, ap);
if (r > 0 && (unsigned int)r < sizeof(buf))
r = write(fd, buf, r);
va_end(ap);
return r;
}
static int enabledbg(void)
{
FILE *fp = fopen("/tmp/nnndbg", "w");
if (!fp) {
perror("dbg(1)");
fp = fopen("./nnndbg", "w");
if (!fp) {
perror("dbg(2)");
return -1;
}
}
DEBUG_FD = dup(fileno(fp));
fclose(fp);
if (DEBUG_FD == -1) {
perror("dbg(3)");
return -1;
}
return 0;
}
static void disabledbg(void)
{
close(DEBUG_FD);
}
#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)
#define DPRINTF_D(x) xprintf(DEBUG_FD, "ln " TOSTRING(__LINE__) ": " #x "=%d\n", x)
#define DPRINTF_U(x) xprintf(DEBUG_FD, "ln " TOSTRING(__LINE__) ": " #x "=%u\n", x)
#define DPRINTF_S(x) xprintf(DEBUG_FD, "ln " TOSTRING(__LINE__) ": " #x "=%s\n", x)
#define DPRINTF_P(x) xprintf(DEBUG_FD, "ln " TOSTRING(__LINE__) ": " #x "=%p\n", x)
#else
#define DPRINTF_D(x)
#define DPRINTF_U(x)
#define DPRINTF_S(x)
#define DPRINTF_P(x)
#endif /* DBGMODE */
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