/* * File: os.h * * Author: * MRC Laboratory of Molecular Biology * Hills Road * Cambridge CB2 2QH * United Kingdom * * Description: operating system specific type definitions * */ #ifndef _OS_H_ #define _OS_H_ #include #include #ifdef __cplusplus extern "C" { #endif /* * Define PATH_MAX in case it is not available (for example for hurd_i386) */ #ifndef PATH_MAX # define PATH_MAX 4096 #endif /*----------------------------------------------------------------------------- * Detection of endianness. The main part of this is done in autoconf, but * for the case of MacOS FAT binaries we fall back on auto-sensing based on * processor type too. */ /* Set by autoconf. * * If you are attempting to compile without autoconf, copy this file to * os.h and remove the @...@ lines below. */ #ifndef NO_AUTOCONF @SET_ENDIAN@ @SET_STDIO_EXT@ @SET_CRAM_IO_CUSTOM_BUFFERING@ #endif /* Mac FAT binaries or unknown. Auto detect based on CPU type */ #if !defined(SP_BIG_ENDIAN) && !defined(SP_LITTLE_ENDIAN) /* * x86 equivalents */ #if defined(__i386__) || defined(__i386) || defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(__i686__) || defined(__i686) # if defined(SP_BIG_ENDIAN) # undef SP_BIG_ENDIAN # endif # define SP_LITTLE_ENDIAN #endif /* * DEC Alpha */ #if defined(__alpha__) || defined(__alpha) # if defined(SP_LITTLE_ENDIAN) # undef SP_LITTLE_ENDIAN # endif # define SP_BIG_ENDIAN #endif /* * SUN Sparc */ #if defined(__sparc__) || defined(__sparc) # if defined(SP_LITTLE_ENDIAN) # undef SP_LITTLE_ENDIAN # endif # define SP_BIG_ENDIAN #endif /* * PowerPC */ #if defined(__ppc__) || defined(__ppc) # if defined(SP_LITTLE_ENDIAN) # undef SP_LITTLE_ENDIAN # endif # define SP_BIG_ENDIAN #endif /* Some catch-alls */ #if defined(__LITTLE_ENDIAN__) || defined(__LITTLEENDIAN__) # define SP_LITTLE_ENDIAN #endif #if defined(__BIG_ENDIAN__) || defined(__BIGENDIAN__) # define SP_BIG_ENDIAN #endif #if defined(SP_BIG_ENDIAN) && defined(SP_LITTLE_ENDIAN) # error Both BIG and LITTLE endian defined. Fix os.h and/or Makefile #endif #if !defined(SP_BIG_ENDIAN) && !defined(SP_LITTLE_ENDIAN) # error Neither BIG nor LITTLE endian defined. Fix os.h and/or Makefile #endif #endif /*----------------------------------------------------------------------------- * Allow for unaligned memory access. This is used in BAM code as the packed * structure has 4-byte cigar ints after the variable length name. * * Consider using AX_CHECK_ALIGNED_ACCESS_REQUIRED in autoconf. */ #if defined(__i386__) || defined(__i386) || defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(__i686__) || defined(__i686) # define ALLOW_UAC #endif /*----------------------------------------------------------------------------- * Byte swapping macros */ /* * Our new swap runs at the same speed on Ultrix, but substantially faster * (300% for swap_int4, ~50% for swap_int2) on an Alpha (due to the lack of * decent 'char' support). * * They also have the ability to swap in situ (src == dst). Newer code now * relies on this so don't change back! */ #define iswap_int8(x) \ (((x & 0x00000000000000ffLL) << 56) + \ ((x & 0x000000000000ff00LL) << 40) + \ ((x & 0x0000000000ff0000LL) << 24) + \ ((x & 0x00000000ff000000LL) << 8) + \ ((x & 0x000000ff00000000LL) >> 8) + \ ((x & 0x0000ff0000000000LL) >> 24) + \ ((x & 0x00ff000000000000LL) >> 40) + \ ((x & 0xff00000000000000LL) >> 56)) #define iswap_int4(x) \ (((x & 0x000000ff) << 24) + \ ((x & 0x0000ff00) << 8) + \ ((x & 0x00ff0000) >> 8) + \ ((x & 0xff000000) >> 24)) #define iswap_int2(x) \ (((x & 0x00ff) << 8) + \ ((x & 0xff00) >> 8)) #define swap_int8(src, dst) ((dst) = iswap_int8(src)) #define swap_int4(src, dst) ((dst) = iswap_int4(src)) #define swap_int2(src, dst) ((dst) = iswap_int2(src)) /* * Linux systems may use byteswap.h to get assembly versions of byte-swap * on intel systems. This can be as trivial as the bswap opcode, which works * out at over 2-times faster than iswap_int4 above. */ #if 0 #if defined(__linux__) # include # undef iswap_int8 # undef iswap_int4 # undef iswap_int2 # define iswap_int8 bswap_64 # define iswap_int4 bswap_32 # define iswap_int2 bswap_16 #endif #endif /* * Macros to specify that data read in is of a particular endianness. * The macros here swap to the appropriate order for the particular machine * running the macro and return the new answer. These may also be used when * writing to a file to specify that we wish to write in (eg) big endian * format. * * This leads to efficient code as most of the time these macros are * trivial. */ #ifdef SP_BIG_ENDIAN #define be_int8(x) (x) #define be_int4(x) (x) #define be_int2(x) (x) #define be_int1(x) (x) #define le_int8(x) iswap_int8((x)) #define le_int4(x) iswap_int4((x)) #define le_int2(x) iswap_int2((x)) #define le_int1(x) (x) #endif #ifdef SP_LITTLE_ENDIAN #define be_int8(x) iswap_int8((x)) #define be_int4(x) iswap_int4((x)) #define be_int2(x) iswap_int2((x)) #define be_int1(x) (x) #define le_int8(x) (x) #define le_int4(x) (x) #define le_int2(x) (x) #define le_int1(x) (x) #endif /*----------------------------------------------------------------------------- * Configuration of which io_lib sub-components we wish to support. * (These are now manditory for the stand-alone build of io_lib. Do * not change.) */ #define IOLIB_ABI #define IOLIB_SCF #define IOLIB_ALF #define IOLIB_PLN #define IOLIB_EXP #define IOLIB_SFF #define IOLIB_ZTR /*----------------------------------------------------------------------------- * definitions, incase they're not present */ #ifndef PRId64 #define __PRI64__ "l" #define PRId64 __PRI64__ "d" #define PRId32 "d" #define PRId16 "d" #define PRId8 "d" #define PRIu64 __PRI64__ "u" #define PRIu32 "u" #define PRIu16 "u" #define PRIu8 "u" #endif /*----------------------------------------------------------------------------- * Operating system specifics. * These ought to be done by autoconf, but are legacy code. */ /* * SunOS 4.x * Even though we use the ANSI gcc, we make use the the standard SunOS 4.x * libraries and include files, which are non-ansi */ #if defined(__sun__) && !defined(__svr4__) #define SEEK_SET 0 #define SEEK_CUR 1 #define SEEK_END 2 #define FOPEN_MAX 64 #define FILENAME_MAX 1024 /* Missing functions, defined in strings.c */ #define NOMEMMOVE #define NOSTRERROR #define BUGGY_SSCANF #endif /* * SunOS 5.x - gcc or Sun's cc */ #if (defined(__sun__) || defined(__sun)) && (defined(__svr4__) || defined(__SVR4)) # define IMAGEDISPLAY # define NOSTRDUP #endif /* * Microsoft Visual C++ * Windows */ #if defined(_MSC_VER) #define popen _popen #define pclose _pclose typedef int mode_t; #ifdef ftruncate # undef ftruncate #endif #define ftruncate(fd,len) _chsize(fd,len) #define sysconf(x) 512 #define NOPIPE #define NOLOCKF #define NOSTRCASECMP #define NO_STRPTIME #undef HAVE_SYS_WAIT_H //Visual Studio on Windows does not like "static inline" //http://lists.cairographics.org/archives/cairo/2008-January/012726.html #define inline __inline //Visual Studio does not define ssize_t #define ssize_t long #endif /* * Microsoft Windows running MinGW */ #if defined(__MINGW32__) #include #define mkdir(filename,mode) mkdir((filename)) #define NOPIPE #define NOLOCKF #define NO_STRPTIME #define sysconf(x) 512 #ifndef ftruncate # define ftruncate(fd,len) _chsize(fd,len) #endif #undef HAVE_SYS_WAIT_H #endif /* Generic WIN32 API issues */ #ifdef _WIN32 # ifndef HAVE_FSEEKO # if __MSVCRT_VERSION__ >= 0x800 /* if you have MSVCR80 installed then you can use these definitions: */ # define off_t __int64 # define fseeko _fseeki64 # define ftello _ftelli64 # else /* otherwise we're stuck with 32-bit file support */ # define off_t long # define fseeko fseek # define ftello ftell # endif # endif /* !HAVE_FSEEKO */ #endif /* _WIN32 */ /* * DEC Alpha's running Digital UNIX */ #if defined(__alpha) /* Nothing as yet */ #endif /* * Silicon Graphics - Irix */ #if defined(__sgi) #define NOSTRDUP #define NO_STRPTIME #endif /* * Macs (<= OS 9) - yuk! */ #if defined(MAC) #define NOSTRDUP #endif #if defined(__APPLE__) && defined(__ppc__) #define NO_STRPTIME #define NOLOCKF #endif #if defined(__APPLE__) && defined(__i386__) /* nothing untoward as yet */ #endif /*----------------------------------------------------------------------------- * Typedefs for data sizes. Note there's umpteen versions of typedefs here * due to old code being supported. The ones that should be used everywhere * are {u,}int[124]. * * C9X defines its own versions of these in inttypes.h so new code should * ideally be using the (for example) int32_t style of types. Again this * is just legacy code. */ /* * Convenience of type casting */ typedef unsigned char uc; typedef signed char sc; /* * One byte integers */ typedef unsigned char int1; typedef unsigned char uint1; /* * Two byte integers */ typedef signed short int2; typedef unsigned short uint2; /* * Four byte integers */ typedef signed int int4; typedef unsigned int uint4; typedef int64_t int8; typedef uint64_t uint8; /* * Backwards compatibility */ typedef signed char int_1; typedef unsigned char uint_1; typedef signed short int_2; typedef unsigned short uint_2; typedef signed int int_4; typedef unsigned int uint_4; /* * Some handy definitions. */ #ifndef _MSC_VER #define MAXINT8 (9223372036854775807LL) #endif #define MAXINT4 (INT_MAX) #define MAXINT2 (SHRT_MAX) /*----------------------------------------------------------------------------- * The FORTRAN interface. */ typedef int4 f_int; typedef int4 f_implicit; typedef void f_proc_ret; /* procedure return value */ /* James Bonfield compatability mode */ typedef int4 int_f; /* f_int */ typedef int4 int_fl; /* f_implicit */ #define f_proc_return() return /* (f_proc_ret) 0 */ /* * Use when calling/defining a Fortran function from C. */ #ifdef VMS # define FORT(symbol) (symbol) #else # define FORT(symbol) (_symbol) #endif #ifdef __cplusplus } #endif /*----------------------------------------------------------------------------- * define PATH_MAX in case it is not available (for example for hurd_i386) */ #ifndef PATH_MAX # define PATH_MAX 4096 #endif #endif /*_OS_H_*/