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/*
* Copyright (c) 2011 Mark Heily <mark@heily.com>
*
* Permission to use, copy, modify, and 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.
*/
#ifndef _DEBUG_H
#define _DEBUG_H
#include <assert.h>
extern int DEBUG_ACTIVE;
extern char *DEBUG_IDENT;
#if defined(__linux__)
#include <linux/unistd.h>
#include <sys/syscall.h>
#include <unistd.h>
# define THREAD_ID ((pid_t) syscall(__NR_gettid))
#elif defined(__sun)
# define THREAD_ID (pthread_self())
#elif defined(__FreeBSD__) /* FIXME -- could use thr_self() */
# define THREAD_ID (0)
#elif defined(_WIN32)
# define THREAD_ID (int)(GetCurrentThreadId())
#else
# error Unsupported platform
#endif
#ifndef NDEBUG
#define dbg_puts(str) do { \
if (DEBUG_ACTIVE) \
fprintf(stderr, "%s [%d]: %s(): %s\n", \
DEBUG_IDENT, THREAD_ID, __func__, str); \
} while (0)
#define dbg_printf(fmt,...) do { \
if (DEBUG_ACTIVE) \
fprintf(stderr, "%s [%d]: %s(): "fmt"\n", \
DEBUG_IDENT, THREAD_ID, __func__, __VA_ARGS__); \
} while (0)
#define dbg_perror(str) do { \
if (DEBUG_ACTIVE) \
fprintf(stderr, "%s [%d]: %s(): %s: %s (errno=%d)\n", \
DEBUG_IDENT, THREAD_ID, __func__, str, \
strerror(errno), errno); \
} while (0)
# define reset_errno() do { errno = 0; } while (0)
# if defined(_WIN32)
# define dbg_lasterror(str) do { \
if (DEBUG_ACTIVE) \
fprintf(stderr, "%s: [%d] %s(): %s: (LastError=%d)\n", \
THREAD_ID, __func__, str, GetLastError()); \
} while (0)
# else
# define dbg_lasterror(str) ;
# endif
#else /* NDEBUG */
# define dbg_puts(str) ;
# define dbg_printf(fmt,...) ;
# define dbg_perror(str) ;
# define dbg_lasterror(str) ;
# define reset_errno() ;
#endif
#endif /* ! _DEBUG_H */
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