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/* config.h - general config and Dprintf macro
*
* Copyright (C) 2003-2010 Federico Di Gregorio <fog@debian.org>
*
* This file is part of psycopg.
*
* psycopg2 is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* In addition, as a special exception, the copyright holders give
* permission to link this program with the OpenSSL library (or with
* modified versions of OpenSSL that use the same license as OpenSSL),
* and distribute linked combinations including the two.
*
* You must obey the GNU Lesser General Public License in all respects for
* all of the code used other than OpenSSL.
*
* psycopg2 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 Lesser General Public
* License for more details.
*/
#ifndef PSYCOPG_CONFIG_H
#define PSYCOPG_CONFIG_H 1
/* GCC 4.0 and later have support for specifying symbol visibility */
#if __GNUC__ >= 4 && !defined(__MINGW32__)
# define HIDDEN __attribute__((visibility("hidden")))
#else
# define HIDDEN
#endif
/* debug printf-like function */
#ifdef PSYCOPG_DEBUG
extern HIDDEN int psycopg_debug_enabled;
#endif
#if defined( __GNUC__) && !defined(__APPLE__)
#ifdef PSYCOPG_DEBUG
#include <sys/types.h>
#include <unistd.h>
#define Dprintf(fmt, args...) \
if (!psycopg_debug_enabled) ; else \
fprintf(stderr, "[%d] " fmt "\n", (int) getpid() , ## args)
#else
#define Dprintf(fmt, args...)
#endif
#else /* !__GNUC__ or __APPLE__ */
#ifdef PSYCOPG_DEBUG
#include <stdarg.h>
#ifdef _WIN32
#include <process.h>
#define getpid _getpid
#endif
static void Dprintf(const char *fmt, ...)
{
va_list ap;
if (!psycopg_debug_enabled)
return;
printf("[%d] ", (int) getpid());
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
}
#else
static void Dprintf(const char *fmt, ...) {}
#endif
#endif
/* pthreads work-arounds for mutilated operating systems */
#if defined(_WIN32) || defined(__BEOS__)
#ifdef _WIN32
/* A Python extension should be linked to only one C runtime: the same one as
* the Python interpreter itself. Straightforwardly using the strdup function
* causes MinGW to implicitly link to the msvcrt.dll, which is not appropriate
* for any Python version later than 2.3.
* Microsoft C runtimes for Windows 98 and later make a _strdup function
* available, which replaces the "normal" strdup. If we replace all psycopg
* calls to strdup with calls to _strdup, MinGW no longer implicitly links to
* the obsolete C runtime. */
#define strdup _strdup
#include <winsock2.h>
#define pthread_mutex_t HANDLE
#define pthread_condvar_t HANDLE
#define pthread_mutex_lock(object) WaitForSingleObject(*(object), INFINITE)
#define pthread_mutex_unlock(object) ReleaseMutex(*(object))
#define pthread_mutex_destroy(ref) (CloseHandle(*(ref)))
/* convert pthread mutex to native mutex */
static int pthread_mutex_init(pthread_mutex_t *mutex, void* fake)
{
*mutex = CreateMutex(NULL, FALSE, NULL);
return 0;
}
#endif /* _WIN32 */
#ifdef __BEOS__
#include <OS.h>
#define pthread_mutex_t sem_id
#define pthread_mutex_lock(object) acquire_sem(object)
#define pthread_mutex_unlock(object) release_sem(object)
#define pthread_mutex_destroy(ref) delete_sem(*ref)
static int pthread_mutex_init(pthread_mutex_t *mutex, void* fake)
{
*mutex = create_sem(1, "psycopg_mutex");
if (*mutex < B_OK)
return *mutex;
return 0;
}
#endif /* __BEOS__ */
#else /* pthread is available */
#include <pthread.h>
#endif
/* to work around the fact that Windows does not have a gmtime_r function, or
a proper gmtime function */
#ifdef _WIN32
#define gmtime_r(t, tm) (gmtime(t)?memcpy((tm), gmtime(t), sizeof(*(tm))):NULL)
#define localtime_r(t, tm) (localtime(t)?memcpy((tm), localtime(t), sizeof(*(tm))):NULL)
/* remove the inline keyword, since it doesn't work unless C++ file */
#define inline
/* Hmmm, MSVC doesn't have a isnan/isinf function, but has _isnan function */
#if defined (_MSC_VER)
#define isnan(x) (_isnan(x))
/* The following line was hacked together from simliar code by Bjorn Reese
* in libxml2 code */
#define isinf(x) ((_fpclass(x) == _FPCLASS_PINF) ? 1 \
: ((_fpclass(x) == _FPCLASS_NINF) ? -1 : 0))
#define strcasecmp(x, y) lstrcmpi(x, y)
#endif
#endif
#if (defined(__FreeBSD__) && __FreeBSD_version < 503000) || (defined(_WIN32) && !defined(__GNUC__)) || defined(__sun__) || defined(sun)
/* what's this, we have no round function either? */
static double round(double num)
{
return (num >= 0) ? floor(num + 0.5) : ceil(num - 0.5);
}
#endif
/* postgresql < 7.4 does not have PQfreemem */
#ifndef HAVE_PQFREEMEM
#define PQfreemem free
#endif
/* resolve missing isinf() function for Solaris */
#if defined (__SVR4) && defined (__sun)
#include <ieeefp.h>
#define isinf(x) (!finite((x)) && (x)==(x))
#endif
#endif /* !defined(PSYCOPG_CONFIG_H) */
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