📄 my_global.h
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#define DBUG_OFF#endif#include <dbug.h>#ifndef DBUG_OFF#define dbug_assert(A) assert(A)#else#define dbug_assert(A)#endif#define MIN_ARRAY_SIZE 0 /* Zero or One. Gcc allows zero*/#define ASCII_BITS_USED 8 /* Bit char used */#define NEAR_F /* No near function handling *//* Some types that is different between systems */typedef int File; /* File descriptor */#ifndef Socket_definedtypedef int my_socket; /* File descriptor for sockets */#define INVALID_SOCKET -1#endif/* Type for fuctions that handles signals */#define sig_handler RETSIGTYPEtypedef void (*sig_return)();/* Returns type from signal */#if defined(__GNUC__) && !defined(_lint)typedef char pchar; /* Mixed prototypes can take char */typedef char puchar; /* Mixed prototypes can take char */typedef char pbool; /* Mixed prototypes can take char */typedef short pshort; /* Mixed prototypes can take short int */typedef float pfloat; /* Mixed prototypes can take float */#elsetypedef int pchar; /* Mixed prototypes can't take char */typedef uint puchar; /* Mixed prototypes can't take char */typedef int pbool; /* Mixed prototypes can't take char */typedef int pshort; /* Mixed prototypes can't take short int */typedef double pfloat; /* Mixed prototypes can't take float */#endiftypedef int (*qsort_cmp)(const void *,const void *);#ifdef HAVE_mit_thread#define qsort_t void#undef QSORT_TYPE_IS_VOID#define QSORT_TYPE_IS_VOID#else#define qsort_t RETQSORTTYPE /* Broken GCC cant handle typedef !!!! */#endif#ifdef HAVE_mit_thread#define size_socket socklen_t /* Type of last arg to accept */#else#ifdef HAVE_SYS_SOCKET_H#include <sys/socket.h>#endiftypedef SOCKET_SIZE_TYPE size_socket;#endif#ifndef SOCKOPT_OPTLEN_TYPE#define SOCKOPT_OPTLEN_TYPE size_socket#endif/* file create flags */#ifndef O_SHARE#define O_SHARE 0 /* Flag to my_open for shared files */#ifndef O_BINARY#define O_BINARY 0 /* Flag to my_open for binary files */#endif#define FILE_BINARY 0 /* Flag to my_fopen for binary streams */#ifdef HAVE_FCNTL#define HAVE_FCNTL_LOCK#define F_TO_EOF 0L /* Param to lockf() to lock rest of file */#endif#endif /* O_SHARE */#ifndef O_TEMPORARY#define O_TEMPORARY 0#endif#ifndef O_SHORT_LIVED#define O_SHORT_LIVED 0#endif/* #define USE_RECORD_LOCK */ /* Unsigned types supported by the compiler */#define UNSINT8 /* unsigned int8 (char) */#define UNSINT16 /* unsigned int16 */#define UNSINT32 /* unsigned int32 */ /* General constants */#define SC_MAXWIDTH 256 /* Max width of screen (for error messages) */#define FN_LEN 256 /* Max file name len */#define FN_HEADLEN 253 /* Max length of filepart of file name */#define FN_EXTLEN 20 /* Max length of extension (part of FN_LEN) */#define FN_REFLEN 512 /* Max length of full path-name */#define FN_EXTCHAR '.'#define FN_HOMELIB '~' /* ~/ is used as abbrev for home dir */#define FN_CURLIB '.' /* ./ is used as abbrev for current dir */#define FN_PARENTDIR ".." /* Parentdirectory; Must be a string */#define FN_DEVCHAR ':'#ifndef FN_LIBCHAR#ifdef __EMX__#define FN_LIBCHAR '\\'#define FN_ROOTDIR "\\"#else#define FN_LIBCHAR '/'#define FN_ROOTDIR "/"#endif#define MY_NFILE 1024 /* This is only used to save filenames */#endif/* #define EXT_IN_LIBNAME *//* #define FN_NO_CASE_SENCE *//* #define FN_UPPER_CASE TRUE *//* Io buffer size; Must be a power of 2 and a multiple of 512. May be smaller what the disk page size. This influences the speed of the isam btree library. eg to big to slow. */#define IO_SIZE 4096/* How much overhead does malloc have. The code often allocates something like 1024-MALLOC_OVERHEAD bytes */#ifdef SAFEMALLOC#define MALLOC_OVERHEAD (8+24+4)#else#define MALLOC_OVERHEAD 8#endif /* get memory in huncs */#define ONCE_ALLOC_INIT (uint) (4096-MALLOC_OVERHEAD) /* Typical record cash */#define RECORD_CACHE_SIZE (uint) (64*1024-MALLOC_OVERHEAD) /* Typical key cash */#define KEY_CACHE_SIZE (uint) (8*1024*1024-MALLOC_OVERHEAD) /* Some things that this system doesn't have */#define ONLY_OWN_DATABASES /* We are using only databases by monty */#define NO_PISAM /* Not needed anymore */#define NO_MISAM /* Not needed anymore */#define NO_HASH /* Not needed anymore */#ifdef __WIN__#define NO_DIR_LIBRARY /* Not standar dir-library */#define USE_MY_STAT_STRUCT /* For my_lib */#endif/* Some things that this system does have */#ifndef HAVE_ITOA#define USE_MY_ITOA /* There is no itoa */#endif/* Some defines of functions for portability */#ifndef HAVE_ATOD#define atod atof#endif#ifdef USE_MY_ATOF#define atof my_atofextern void init_my_atof(void);extern double my_atof(const char*);#endif#undef remove /* Crashes MySQL on SCO 5.0.0 */#ifndef __WIN__#ifdef OS2#define closesocket(A) soclose(A)#else#define closesocket(A) close(A)#endif#ifndef ulonglong2double#define ulonglong2double(A) ((double) (A))#define my_off_t2double(A) ((double) (A))#endif#endif#ifndef offsetof#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)#endif#define ulong_to_double(X) ((double) (ulong) (X))#define SET_STACK_SIZE(X) /* Not needed on real machines */#if !defined(HAVE_mit_thread) && !defined(HAVE_STRTOK_R)#define strtok_r(A,B,C) strtok((A),(B))#endif#ifdef HAVE_LINUXTHREADS/* #define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C)) *//* #define sigset(A,B) signal((A),(B)) */#endif/* Remove some things that mit_thread break or doesn't support */#if defined(HAVE_mit_thread) && defined(THREAD)#undef HAVE_PREAD#undef HAVE_REALPATH#undef HAVE_MLOCK#undef HAVE_TEMPNAM /* Use ours */#undef HAVE_PTHREAD_SETPRIO#undef HAVE_FTRUNCATE#undef HAVE_READLINK#endif/* This is from the old m-machine.h file */#if SIZEOF_LONG_LONG > 4#define HAVE_LONG_LONG 1#endif#if defined(HAVE_LONG_LONG) && !defined(LONGLONG_MIN)#define LONGLONG_MIN ((long long) 0x8000000000000000LL)#define LONGLONG_MAX ((long long) 0x7FFFFFFFFFFFFFFFLL)#endif#if SIZEOF_LONG == 4#define INT_MIN32 (long) 0x80000000L#define INT_MAX32 (long) 0x7FFFFFFFL#define INT_MIN24 ((long) 0xff800000L)#define INT_MAX24 0x007fffffL#define INT_MIN16 ((short int) 0x8000)#define INT_MAX16 0x7FFF#define INT_MIN8 ((char) 0x80)#define INT_MAX8 ((char) 0x7F)#else /* Probably Alpha */#define INT_MIN32 ((long) (int) 0x80000000)#define INT_MAX32 ((long) (int) 0x7FFFFFFF)#define INT_MIN24 ((long) (int) 0xff800000)#define INT_MAX24 ((long) (int) 0x007fffff)#define INT_MIN16 ((short int) 0xffff8000)#define INT_MAX16 ((short int) 0x00007FFF)#endif/* From limits.h instead */#ifndef DBL_MIN#define DBL_MIN 4.94065645841246544e-324#define FLT_MIN ((float)1.40129846432481707e-45)#endif#ifndef DBL_MAX#define DBL_MAX 1.79769313486231470e+308#define FLT_MAX ((float)3.40282346638528860e+38)#endif/* Max size that must be added to a so that we know Size to make adressable obj. */typedef long my_ptrdiff_t;#define MY_ALIGN(A,L) (((A) + (L) - 1) & ~((L) - 1))#define ALIGN_SIZE(A) MY_ALIGN((A),sizeof(double))/* Size to make adressable obj. */#define ALIGN_PTR(A, t) ((t*) MY_ALIGN((A),sizeof(t))) /* Offset of filed f in structure t */#define OFFSET(t, f) ((size_t)(char *)&((t *)0)->f)#define ADD_TO_PTR(ptr,size,type) (type) ((byte*) (ptr)+size)#define PTR_BYTE_DIFF(A,B) (my_ptrdiff_t) ((byte*) (A) - (byte*) (B))#define NullS (char *) 0/* Nowdays we do not support MessyDos */#ifndef NEAR#define NEAR /* Who needs segments ? */#define FAR /* On a good machine */#ifndef HUGE_PTR#define HUGE_PTR#endif#endif#if defined(__IBMC__) || defined(__IBMCPP__)#define STDCALL _System _Export#elif !defined( STDCALL)#define STDCALL#endif/* Typdefs for easyier portability */#if defined(VOIDTYPE)typedef void *gptr; /* Generic pointer */#elsetypedef char *gptr; /* Generic pointer */#endif#ifndef HAVE_INT_8_16_32typedef char int8; /* Signed integer >= 8 bits */typedef short int16; /* Signed integer >= 16 bits */#endif#ifndef HAVE_UCHARtypedef unsigned char uchar; /* Short for unsigned char */#endiftypedef unsigned char uint8; /* Short for unsigned integer >= 8 bits */typedef unsigned short uint16; /* Short for unsigned integer >= 16 bits */#if SIZEOF_INT == 4#ifndef HAVE_INT_8_16_32typedef int int32;#endiftypedef unsigned int uint32; /* Short for unsigned integer >= 32 bits */#elif SIZEOF_LONG == 4#ifndef HAVE_INT_8_16_32typedef long int32;#endiftypedef unsigned long uint32; /* Short for unsigned integer >= 32 bits */#elseerror "Neither int or long is of 4 bytes width"#endif#if !defined(HAVE_ULONG) && !defined(HAVE_LINUXTHREADS) && !defined(__USE_MISC)typedef unsigned long ulong; /* Short for unsigned long */#endif#ifndef longlong_defined#if defined(HAVE_LONG_LONG) && SIZEOF_LONG != 8typedef unsigned long long int ulonglong; /* ulong or unsigned long long */typedef long long int longlong;#elsetypedef unsigned long ulonglong; /* ulong or unsigned long long */typedef long longlong;#endif#endif#ifdef USE_RAID/* The following is done with a if to not get problems with pre-processors with late define evaluation */#if SIZEOF_OFF_T == 4#define SYSTEM_SIZEOF_OFF_T 4#else#define SYSTEM_SIZEOF_OFF_T 8#endif#undef SIZEOF_OFF_T#define SIZEOF_OFF_T 8#else#define SYSTEM_SIZEOF_OFF_T SIZEOF_OFF_T#endif /* USE_RAID */#if SIZEOF_OFF_T > 4typedef ulonglong my_off_t;#elsetypedef unsigned long my_off_t;
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