/* config.h - general config and Dprintf macro * * Copyright (C) 2003-2019 Federico Di Gregorio * Copyright (C) 2020-2021 The Psycopg Team * * 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 /* support for getpid() */ #if defined( __GNUC__) #define CONN_CHECK_PID #include #include #endif #ifdef _WIN32 /* Windows doesn't seem affected by bug #829: just make it compile. */ #define pid_t int #endif /* debug printf-like function */ #ifdef PSYCOPG_DEBUG extern HIDDEN int psycopg_debug_enabled; #endif #if defined( __GNUC__) && !defined(__APPLE__) #ifdef PSYCOPG_DEBUG #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 #ifdef _WIN32 #include #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 #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 #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 #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 <2015 doesn't have a isnan/isinf function, but has _isnan function */ #if defined (_MSC_VER) #if !defined(isnan) #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)) #endif #define strcasecmp(x, y) lstrcmpi(x, y) typedef __int8 int8_t; typedef __int16 int16_t; typedef __int32 int32_t; typedef __int64 int64_t; typedef unsigned __int8 uint8_t; typedef unsigned __int16 uint16_t; typedef unsigned __int32 uint32_t; typedef unsigned __int64 uint64_t; #endif #include "win32_support.h" #endif /* what's this, we have no round function either? */ #if (defined(_WIN32) && !defined(__GNUC__)) \ || (defined(sun) || defined(__sun__)) \ && (defined(__SunOS_5_8) || defined(__SunOS_5_9)) /* round has been added in the standard library with MSVC 2015 */ #if _MSC_VER < 1900 static double round(double num) { return (num >= 0) ? floor(num + 0.5) : ceil(num - 0.5); } #endif #endif /* resolve missing isinf() function for Solaris */ #if defined (__SVR4) && defined (__sun) #include #define isinf(x) (!finite((x)) && (x)==(x)) #endif /* decorators for the gcc cpychecker plugin */ #if defined(WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE) #define BORROWED \ __attribute__((cpychecker_returns_borrowed_ref)) #else #define BORROWED #endif #if defined(WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE) #define STEALS(n) \ __attribute__((cpychecker_steals_reference_to_arg(n))) #else #define STEALS(n) #endif #if defined(WITH_CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION_ATTRIBUTE) #define RAISES_NEG \ __attribute__((cpychecker_negative_result_sets_exception)) #else #define RAISES_NEG #endif #if defined(WITH_CPYCHECKER_SETS_EXCEPTION_ATTRIBUTE) #define RAISES \ __attribute__((cpychecker_sets_exception)) #else #define RAISES #endif #endif /* !defined(PSYCOPG_CONFIG_H) */