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openmpi/opal/include/opal_config_bottom.h
George Bosilca b85e3636f3 Cope with the case where IPv6 headers are not available.
This commit was SVN r21593.
2009-07-02 18:00:26 +00:00

585 строки
18 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2007 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* This file is included at the bottom of opal_config.h, and is
* therefore a) after all the #define's that were output from
* configure, and b) included in most/all files in Open MPI.
*
* Since this file is *only* ever included by opal_config.h, and
* opal_config.h already has #ifndef/#endif protection, there is no
* need to #ifndef/#endif protection here.
*/
#ifndef OPAL_CONFIG_H
#error "opal_config_bottom.h should only be included from opal_config.h"
#endif
/*
* If we build a static library, Visual C define the _LIB symbol. In the
* case of a shared library _USERDLL get defined.
*
* OMPI_BUILDING and _LIB define how ompi_config.h
* handles configuring all of Open MPI's "compatibility" code. Both
* constants will always be defined by the end of ompi_config.h.
*
* OMPI_BUILDING affects how much compatibility code is included by
* ompi_config.h. It will always be 1 or 0. The user can set the
* value before including either mpi.h or ompi_config.h and it will be
* respected. If ompi_config.h is included before mpi.h, it will
* default to 1. If mpi.h is included before ompi_config.h, it will
* default to 0.
*/
#ifndef OMPI_BUILDING
#define OMPI_BUILDING 1
#endif
/*
* Flex is trying to include the unistd.h file. As there is no configure
* option or this, the flex generated files will try to include the file
* even on platforms without unistd.h (such as Windows). Therefore, if we
* know this file is not available, we can prevent flex from including it.
*/
#ifndef HAVE_UNISTD_H
#define YY_NO_UNISTD_H
#endif
/***********************************************************************
*
* code that should be in ompi_config_bottom.h regardless of build
* status
*
**********************************************************************/
/* Do we have posix or solaris thread lib */
#define OPAL_HAVE_THREADS (OPAL_HAVE_POSIX_THREADS || OPAL_HAVE_SOLARIS_THREADS)
/* Do we have thread support? */
#define OPAL_HAVE_THREAD_SUPPORT (OPAL_ENABLE_MPI_THREADS || OPAL_ENABLE_PROGRESS_THREADS)
/*
* BEGIN_C_DECLS should be used at the beginning of your declarations,
* so that C++ compilers don't mangle their names. Use END_C_DECLS at
* the end of C declarations.
*/
#undef BEGIN_C_DECLS
#undef END_C_DECLS
#if defined(c_plusplus) || defined(__cplusplus)
# define BEGIN_C_DECLS extern "C" {
# define END_C_DECLS }
#else
#define BEGIN_C_DECLS /* empty */
#define END_C_DECLS /* empty */
#endif
/**
* The attribute definition should be included before any potential
* usage.
*/
#if OPAL_HAVE_ATTRIBUTE_ALIGNED
# define __opal_attribute_aligned__(a) __attribute__((__aligned__(a)))
# define __opal_attribute_aligned_max__ __attribute__((__aligned__))
#else
# define __opal_attribute_aligned__(a)
# define __opal_attribute_aligned_max__
#endif
#if OPAL_HAVE_ATTRIBUTE_ALWAYS_INLINE
# define __opal_attribute_always_inline__ __attribute__((__always_inline__))
#else
# define __opal_attribute_always_inline__
#endif
#if OPAL_HAVE_ATTRIBUTE_COLD
# define __opal_attribute_cold__ __attribute__((__cold__))
#else
# define __opal_attribute_cold__
#endif
#if OPAL_HAVE_ATTRIBUTE_CONST
# define __opal_attribute_const__ __attribute__((__const__))
#else
# define __opal_attribute_const__
#endif
#if OPAL_HAVE_ATTRIBUTE_DEPRECATED
# define __opal_attribute_deprecated__ __attribute__((__deprecated__))
#else
# define __opal_attribute_deprecated__
#endif
#if OPAL_HAVE_ATTRIBUTE_FORMAT
# define __opal_attribute_format__(a,b,c) __attribute__((__format__(a, b, c)))
#else
# define __opal_attribute_format__(a,b,c)
#endif
#if OPAL_HAVE_ATTRIBUTE_HOT
# define __opal_attribute_hot__ __attribute__((__hot__))
#else
# define __opal_attribute_hot__
#endif
#if OPAL_HAVE_ATTRIBUTE_MALLOC
# define __opal_attribute_malloc__ __attribute__((__malloc__))
#else
# define __opal_attribute_malloc__
#endif
#if OPAL_HAVE_ATTRIBUTE_MAY_ALIAS
# define __opal_attribute_may_alias__ __attribute__((__may_alias__))
#else
# define __opal_attribute_may_alias__
#endif
#if OPAL_HAVE_ATTRIBUTE_NO_INSTRUMENT_FUNCTION
# define __opal_attribute_no_instrument_function__ __attribute__((__no_instrument_function__))
#else
# define __opal_attribute_no_instrument_function__
#endif
#if OPAL_HAVE_ATTRIBUTE_NONNULL
# define __opal_attribute_nonnull__(a) __attribute__((__nonnull__(a)))
# define __opal_attribute_nonnull_all__ __attribute__((__nonnull__))
#else
# define __opal_attribute_nonnull__(a)
# define __opal_attribute_nonnull_all__
#endif
#if OPAL_HAVE_ATTRIBUTE_NORETURN
# define __opal_attribute_noreturn__ __attribute__((__noreturn__))
#else
# define __opal_attribute_noreturn__
#endif
#if OPAL_HAVE_ATTRIBUTE_PACKED
# define __opal_attribute_packed__ __attribute__((__packed__))
#else
# define __opal_attribute_packed__
#endif
#if OPAL_HAVE_ATTRIBUTE_PURE
# define __opal_attribute_pure__ __attribute__((__pure__))
#else
# define __opal_attribute_pure__
#endif
#if OPAL_HAVE_ATTRIBUTE_SENTINEL
# define __opal_attribute_sentinel__ __attribute__((__sentinel__))
#else
# define __opal_attribute_sentinel__
#endif
#if OPAL_HAVE_ATTRIBUTE_UNUSED
# define __opal_attribute_unused__ __attribute__((__unused__))
#else
# define __opal_attribute_unused__
#endif
#if OPAL_HAVE_ATTRIBUTE_VISIBILITY
# define __opal_attribute_visibility__(a) __attribute__((__visibility__(a)))
#else
# define __opal_attribute_visibility__(a)
#endif
#if OPAL_HAVE_ATTRIBUTE_WARN_UNUSED_RESULT
# define __opal_attribute_warn_unused_result__ __attribute__((__warn_unused_result__))
#else
# define __opal_attribute_warn_unused_result__
#endif
#if OPAL_HAVE_ATTRIBUTE_WEAK_ALIAS
# define __opal_attribute_weak_alias__(a) __attribute__((__weak__, __alias__(a)))
#else
# define __opal_attribute_weak_alias__(a)
#endif
/***********************************************************************
*
* Windows library interface declaration code
*
**********************************************************************/
#if !defined(__WINDOWS__)
# if defined(_WIN32) || defined(WIN32) || defined(WIN64)
# define __WINDOWS__
# endif
#endif /* !defined(__WINDOWS__) */
#if defined(__WINDOWS__)
# if defined(_USRDLL) /* building shared libraries (.DLL) */
# if defined(OPAL_EXPORTS)
# define OPAL_DECLSPEC __declspec(dllexport)
# define OPAL_MODULE_DECLSPEC
# else
# define OPAL_DECLSPEC __declspec(dllimport)
# if defined(OPAL_MODULE_EXPORTS)
# define OPAL_MODULE_DECLSPEC __declspec(dllexport)
# else
# define OPAL_MODULE_DECLSPEC __declspec(dllimport)
# endif /* defined(OPAL_MODULE_EXPORTS) */
# endif /* defined(OPAL_EXPORTS) */
# else /* building static library */
# if defined(OPAL_IMPORTS)
# define OPAL_DECLSPEC __declspec(dllimport)
# else
# define OPAL_DECLSPEC
# endif /* defined(OPAL_IMPORTS) */
# define OPAL_MODULE_DECLSPEC
# endif /* defined(_USRDLL) */
# include "opal/win32/win_compat.h"
#else
# if OPAL_C_HAVE_VISIBILITY
# define OPAL_DECLSPEC __opal_attribute_visibility__("default")
# define OPAL_MODULE_DECLSPEC __opal_attribute_visibility__("default")
# else
# define OPAL_DECLSPEC
# define OPAL_MODULE_DECLSPEC
# endif
#endif /* defined(__WINDOWS__) */
/*
* Do we have <stdint.h>?
*/
#ifdef HAVE_STDINT_H
#if defined(__cplusplus) && !defined(__STDC_LIMIT_MACROS)
/* When using a C++ compiler, the max / min value #defines for std
types are only included if __STDC_LIMIT_MACROS is set before
including stdint.h */
#define __STDC_LIMIT_MACROS
#endif
#include "opal_config.h"
#include <stdint.h>
#else
#include "opal_stdint.h"
#endif
/***********************************************************************
*
* Code that is only for when building Open MPI or utilities that are
* using the internals of Open MPI. It should not be included when
* building MPI applications
*
**********************************************************************/
#if OMPI_BUILDING
#ifndef HAVE_PTRDIFF_T
typedef OPAL_PTRDIFF_TYPE ptrdiff_t;
#endif
/*
* If we're in C, we may need to bring in the bool type and true/false
* constants. OPAL_NEED_C_BOOL will be true if the compiler either
* needs <stdbool.h> or doesn't define the bool type at all.
*/
#if !(defined(c_plusplus) || defined(__cplusplus))
# if OPAL_NEED_C_BOOL
# if OPAL_USE_STDBOOL_H
/* If we're using <stdbool.h>, there is an implicit
assumption that the C++ bool is the same size and has
the same alignment. */
# include <stdbool.h>
# else
/* We need to create a bool type and ensure that it's the
same size / alignment as the C++ bool size /
alignment */
# define false 0
# define true 1
# if SIZEOF_BOOL == SIZEOF_CHAR && OMPI_ALIGNMENT_CXX_BOOL == OPAL_ALIGNMENT_CHAR
typedef unsigned char bool;
# elif SIZEOF_BOOL == SIZEOF_SHORT && OMPI_ALIGNMENT_CXX_BOOL == OPAL_ALIGNMENT_SHORT
typedef short bool;
# elif SIZEOF_BOOL == SIZEOF_INT && OMPI_ALIGNMENT_CXX_BOOL == OPAL_ALIGNMENT_INT
typedef int bool;
# elif SIZEOF_BOOL == SIZEOF_LONG && OMPI_ALIGNMENT_CXX_BOOL == OPAL_ALIGNMENT_LONG
typedef long bool;
# elif defined(SIZEOF_LONG_LONG) && defined(OPAL_ALIGNMENT_LONG) && SIZEOF_BOOL == SIZEOF_LONG && OMPI_ALIGNMENT_CXX_BOOL == OPAL_ALIGNMENT_LONG
typedef long long bool;
# else
# error Cannot find a C type that corresponds to the size and alignment of C++ bool!
# endif
# endif /* OPAL_USE_STDBOOL_H */
# endif /* OPAL_NEED_C_BOOL */
#endif
/*
* Maximum size of a filename path.
*/
#include <limits.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#if defined(PATH_MAX)
#define OPAL_PATH_MAX (PATH_MAX + 1)
#elif defined(_POSIX_PATH_MAX)
#define OPAL_PATH_MAX (_POSIX_PATH_MAX + 1)
#else
#define OPAL_PATH_MAX 256
#endif
/*
* Set the compile-time path-separator on this system and variable separator
*/
#ifdef __WINDOWS__
#define OPAL_PATH_SEP "\\"
#define OPAL_ENV_SEP ';'
#else
#define OPAL_PATH_SEP "/"
#define OPAL_ENV_SEP ':'
#endif
/*
* Do we want memory debugging?
*
* A few scenarios:
*
* 1. In the OMPI C library: we want these defines in all cases
* 2. In the OMPI C++ bindings: we do not want them
* 3. In the OMPI C++ executables: we do want them
*
* So for 1, everyone must include <ompi_config.h> first. For 2, the
* C++ bindings will never include <ompi_config.h> -- they will only
* include <mpi.h>, which includes <ompi_config.h>, but after
* setting OMPI_BUILDING to 0 For 3, it's the same as 1 -- just include
* <ompi_config.h> first.
*
* Give code that needs to include ompi_config.h but really can't have
* this stuff enabled (like the memory manager code) a way to turn us
* off
*/
#if OPAL_ENABLE_MEM_DEBUG && !defined(OPAL_DISABLE_ENABLE_MEM_DEBUG)
/* It is safe to include opal/util/malloc.h here because a) it will only
happen when we are building OMPI and therefore have a full OMPI
source tree [including headers] available, and b) we guaranteed to
*not* to include anything else via opal/util/malloc.h, so we won't
have Cascading Includes Of Death. */
# include "opal/util/malloc.h"
# if defined(malloc)
# undef malloc
# endif
# define malloc(size) opal_malloc((size), __FILE__, __LINE__)
# if defined(calloc)
# undef calloc
# endif
# define calloc(nmembers, size) opal_calloc((nmembers), (size), __FILE__, __LINE__)
# if defined(realloc)
# undef realloc
# endif
# define realloc(ptr, size) opal_realloc((ptr), (size), __FILE__, __LINE__)
# if defined(free)
# undef free
# endif
# define free(ptr) opal_free((ptr), __FILE__, __LINE__)
/*
* If we're mem debugging, make the OPAL_DEBUG_ZERO resolve to memset
*/
# include <string.h>
# define OPAL_DEBUG_ZERO(obj) memset(&(obj), 0, sizeof(obj))
#else
# define OPAL_DEBUG_ZERO(obj)
#endif
/*
* printf functions for portability (only when building Open MPI)
*/
#if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
#include <stdarg.h>
#include <stdlib.h>
#endif
#if !defined(HAVE_ASPRINTF) || !defined(HAVE_SNPRINTF) || !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
#include "opal/util/printf.h"
#endif
#ifndef HAVE_ASPRINTF
# define asprintf opal_asprintf
#endif
#ifndef HAVE_SNPRINTF
# define snprintf opal_snprintf
#endif
#ifndef HAVE_VASPRINTF
# define vasprintf opal_vasprintf
#endif
#ifndef HAVE_VSNPRINTF
# define vsnprintf opal_vsnprintf
#endif
/*
* Some platforms (Solaris) have a broken qsort implementation. Work
* around by using our own.
*/
#if OPAL_HAVE_BROKEN_QSORT
#ifdef qsort
#undef qsort
#endif
#include "opal/util/qsort.h"
#define qsort opal_qsort
#endif
/*
* On some homogenous big-iron machines (Sandia's Red Storm), there
* are no htonl and friends. If that's the case, provide stubs. I
* would hope we never find a platform that doesn't have these macros
* and would want to talk to the outside world... On other platforms
* (like Windows) we fail to detect them correctly.
*/
#if !defined(__WINDOWS__) && !defined(HAVE_UNIX_BYTESWAP)
static inline uint32_t htonl(uint32_t hostvar) { return hostvar; }
static inline uint32_t ntohl(uint32_t netvar) { return netvar; }
static inline uint16_t htons(uint16_t hostvar) { return hostvar; }
static inline uint16_t ntohs(uint16_t netvar) { return netvar; }
#endif
/*
* Define __func__-preprocessor directive if the compiler does not
* already define it. Define it to __FILE__ so that we at least have
* a clue where the developer is trying to indicate where the error is
* coming from (assuming that __func__ is typically used for
* printf-style debugging).
*/
#if defined(HAVE_DECL___FUNC__) && !HAVE_DECL___FUNC__
#define __func__ __FILE__
#endif
/**
* Because of the way we're using the opal_object inside Open MPI (i.e.
* dynamic resolution at run-time to derive all objects from the basic
* type), on Windows we have to build everything on C++ mode, simply
* because the C mode does not support dynamic resolution in DLL. Therefore,
* no automatic conversion is allowed. All types have to be explicitly casted
* or the compiler generate an error. This is true even for the void* type. As
* we use void* to silence others compilers in the resolution of the addr member
* of the iovec structure, we have now to find a way around. The simplest solution
* is to define a special type for this field (just for casting). It can be
* set to void* on all platforms with the exception of windows where it has to be
* char*.
*/
#if defined(__WINDOWS__)
#define IOVBASE_TYPE char
#else
#define IOVBASE_TYPE void
#endif /* defined(__WINDOWS__) */
/**
* If we generate our own bool type, we need a special way to cast the result
* in such a way to keep the compilers silent. Right now, th only compiler who
* complain about int to bool conversions is the Microsoft compiler.
*/
#if defined(__WINDOWS__)
# define OPAL_INT_TO_BOOL(VALUE) ((VALUE) != 0 ? true : false)
#else
# define OPAL_INT_TO_BOOL(VALUE) (bool)(VALUE)
#endif /* defined(__WINDOWS__) */
/**
* Top level define to check 2 things: a) if we want ipv6 support, and
* b) the underlying system supports ipv6. Having one #define for
* this makes it simpler to check throughout the code base.
*/
#if OPAL_ENABLE_IPV6 && defined(HAVE_STRUCT_SOCKADDR_IN6)
#define OPAL_WANT_IPV6 1
#else
#define OPAL_WANT_IPV6 0
#endif
#if !defined(HAVE_STRUCT_SOCKADDR_STORAGE) && defined(HAVE_STRUCT_SOCKADDR_IN)
#define sockaddr_storage sockaddr
#define ss_family sa_family
#endif
/* Compatibility structure so that we don't have to have as many
#if checks in the code base */
#if !defined(HAVE_STRUCT_SOCKADDR_IN6) && defined(HAVE_STRUCT_SOCKADDR_IN)
#define sockaddr_in6 sockaddr_in
#define sin6_len sin_len
#define sin6_family sin_family
#define sin6_port sin_port
#define sin6_addr sin_addr
#endif
#if !HAVE_DECL_AF_UNSPEC
#define AF_UNSPEC 0
#endif
#if !HAVE_DECL_PF_UNSPEC
#define PF_UNSPEC 0
#endif
#if !HAVE_DECL_AF_INET6
#define AF_INET6 AF_UNSPEC
#endif
#if !HAVE_DECL_PF_INET6
#define PF_INET6 PF_UNSPEC
#endif
#if defined(__APPLE__) && defined(HAVE_INTTYPES_H)
/* Prior to Mac OS X 10.3, the length modifier "ll" wasn't
supported, but "q" was for long long. This isn't ANSI
C and causes a warning when using PRI?64 macros. We
don't support versions prior to OS X 10.3, so we dont'
need such backward compatibility. Instead, redefine
the macros to be "ll", which is ANSI C and doesn't
cause a compiler warning. */
#include <inttypes.h>
#if defined(__PRI_64_LENGTH_MODIFIER__)
#undef __PRI_64_LENGTH_MODIFIER__
#define __PRI_64_LENGTH_MODIFIER__ "ll"
#endif
#if defined(__SCN_64_LENGTH_MODIFIER__)
#undef __SCN_64_LENGTH_MODIFIER__
#define __SCN_64_LENGTH_MODIFIER__ "ll"
#endif
#endif
#ifdef MCS_VXWORKS
/* VXWorks puts some common functions in oddly named headers. Rather
than update all the places the functions are used, which would be a
maintenance disatster, just update here... */
#ifdef HAVE_IOLIB_H
/* pipe(), ioctl() */
#include <ioLib.h>
#endif
#ifdef HAVE_SOCKLIB_H
/* socket() */
#include <sockLib.h>
#endif
#ifdef HAVE_HOSTLIB_H
/* gethostname() */
#include <hostLib.h>
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif
#endif
#endif
/* If we're in C++, then just undefine restrict and then define it to
nothing. "restrict" is not part of the C++ language, and we don't
have a corresponding AC_CXX_RESTRICT to figure out what the C++
compiler supports. */
#if defined(c_plusplus) || defined(__cplusplus)
#undef restrict
#define restrict
#endif
#endif /* OMPI_BUILDING */