my_global.h

vc连接mysql的封装类

#define SOCKET_EAGAIN	WSAEINPROGRESS
#define SOCKET_ETIMEDOUT WSAETIMEDOUT
#define SOCKET_EWOULDBLOCK WSAEWOULDBLOCK
#define SOCKET_EADDRINUSE WSAEADDRINUSE
#define SOCKET_ENFILE	ENFILE
#define SOCKET_EMFILE	EMFILE
#elif defined(OS2)
#define socket_errno	sock_errno()
#define SOCKET_EINTR	SOCEINTR
#define SOCKET_EAGAIN	SOCEINPROGRESS
#define SOCKET_ETIMEDOUT SOCKET_EINTR
#define SOCKET_EWOULDBLOCK SOCEWOULDBLOCK
#define SOCKET_EADDRINUSE SOCEADDRINUSE
#define SOCKET_ENFILE	SOCENFILE
#define SOCKET_EMFILE	SOCEMFILE
#define closesocket(A)	soclose(A)
#else /* Unix */
#define socket_errno	errno
#define closesocket(A)	close(A)
#define SOCKET_EINTR	EINTR
#define SOCKET_EAGAIN	EAGAIN
#define SOCKET_ETIMEDOUT SOCKET_EINTR
#define SOCKET_EWOULDBLOCK EWOULDBLOCK
#define SOCKET_EADDRINUSE EADDRINUSE
#define SOCKET_ENFILE	ENFILE
#define SOCKET_EMFILE	EMFILE
#endif

typedef uint8		int7;	/* Most effective integer 0 <= x <= 127 */
typedef short		int15;	/* Most effective integer 0 <= x <= 32767 */
typedef char		*my_string; /* String of characters */
typedef unsigned long	size_s; /* Size of strings (In string-funcs) */
typedef int		myf;	/* Type of MyFlags in my_funcs */
#ifndef byte_defined
typedef char		byte;	/* Smallest addressable unit */
#endif
typedef char		my_bool; /* Small bool */
#if !defined(bool) && !defined(bool_defined) && (!defined(HAVE_BOOL) || !defined(__cplusplus))
typedef char		bool;	/* Ordinary boolean values 0 1 */
#endif
	/* Macros for converting *constants* to the right type */
#define INT8(v)		(int8) (v)
#define INT16(v)	(int16) (v)
#define INT32(v)	(int32) (v)
#define MYF(v)		(myf) (v)

#ifndef LL
#ifdef HAVE_LONG_LONG
#define LL(A) A ## LL
#else
#define LL(A) A ## L
#endif
#endif

#ifndef ULL
#ifdef HAVE_LONG_LONG
#define ULL(A) A ## ULL
#else
#define ULL(A) A ## UL
#endif
#endif

/*
  Defines to make it possible to prioritize register assignments. No
  longer that important with modern compilers.
*/
#ifndef USING_X
#define reg1 register
#define reg2 register
#define reg3 register
#define reg4 register
#define reg5 register
#define reg6 register
#define reg7 register
#define reg8 register
#define reg9 register
#define reg10 register
#define reg11 register
#define reg12 register
#define reg13 register
#define reg14 register
#define reg15 register
#define reg16 register
#endif

/*
  Sometimes we want to make sure that the variable is not put into
  a register in debugging mode so we can see its value in the core
*/

#ifndef DBUG_OFF
#define dbug_volatile volatile
#else
#define dbug_volatile
#endif

/* Defines for time function */
#define SCALE_SEC	100
#define SCALE_USEC	10000
#define MY_HOW_OFTEN_TO_ALARM	2	/* How often we want info on screen */
#define MY_HOW_OFTEN_TO_WRITE	1000	/* How often we want info on screen */

#ifdef HAVE_TIMESPEC_TS_SEC
#ifndef set_timespec
#define set_timespec(ABSTIME,SEC) \
{ \
  (ABSTIME).ts_sec=time(0) + (time_t) (SEC); \
  (ABSTIME).ts_nsec=0; \
}
#endif /* !set_timespec */
#ifndef set_timespec_nsec
#define set_timespec_nsec(ABSTIME,NSEC) \
{ \
  ulonglong now= my_getsystime() + (NSEC/100); \
  (ABSTIME).ts_sec=  (now / ULL(10000000)); \
  (ABSTIME).ts_nsec= (now % ULL(10000000) * 100 + ((NSEC) % 100)); \
}
#endif /* !set_timespec_nsec */
#else
#ifndef set_timespec
#define set_timespec(ABSTIME,SEC) \
{\
  struct timeval tv;\
  gettimeofday(&tv,0);\
  (ABSTIME).tv_sec=tv.tv_sec+(time_t) (SEC);\
  (ABSTIME).tv_nsec=tv.tv_usec*1000;\
}
#endif /* !set_timespec */
#ifndef set_timespec_nsec
#define set_timespec_nsec(ABSTIME,NSEC) \
{\
  ulonglong now= my_getsystime() + (NSEC/100); \
  (ABSTIME).tv_sec=  (now / ULL(10000000)); \
  (ABSTIME).tv_nsec= (now % ULL(10000000) * 100 + ((NSEC) % 100));    \
}
#endif /* !set_timespec_nsec */
#endif /* HAVE_TIMESPEC_TS_SEC */

/*
  Define-funktions for reading and storing in machine independent format
  (low byte first)
*/

/* Optimized store functions for Intel x86 */
#if defined(__i386__) && !defined(_WIN64)
#define sint2korr(A)	(*((int16 *) (A)))
#define sint3korr(A)	((int32) ((((uchar) (A)[2]) & 128) ? \
				  (((uint32) 255L << 24) | \
				   (((uint32) (uchar) (A)[2]) << 16) |\
				   (((uint32) (uchar) (A)[1]) << 8) | \
				   ((uint32) (uchar) (A)[0])) : \
				  (((uint32) (uchar) (A)[2]) << 16) |\
				  (((uint32) (uchar) (A)[1]) << 8) | \
				  ((uint32) (uchar) (A)[0])))
#define sint4korr(A)	(*((long *) (A)))
#define uint2korr(A)	(*((uint16 *) (A)))
#ifdef HAVE_purify
#define uint3korr(A)	(uint32) (((uint32) ((uchar) (A)[0])) +\
				  (((uint32) ((uchar) (A)[1])) << 8) +\
				  (((uint32) ((uchar) (A)[2])) << 16))
#else
/*
   ATTENTION !
   
    Please, note, uint3korr reads 4 bytes (not 3) !
    It means, that you have to provide enough allocated space !
*/
#define uint3korr(A)	(long) (*((unsigned int *) (A)) & 0xFFFFFF)
#endif
#define uint4korr(A)	(*((unsigned long *) (A)))
#define uint5korr(A)	((ulonglong)(((uint32) ((uchar) (A)[0])) +\
				    (((uint32) ((uchar) (A)[1])) << 8) +\
				    (((uint32) ((uchar) (A)[2])) << 16) +\
				    (((uint32) ((uchar) (A)[3])) << 24)) +\
				    (((ulonglong) ((uchar) (A)[4])) << 32))
#define uint8korr(A)	(*((ulonglong *) (A)))
#define sint8korr(A)	(*((longlong *) (A)))
#define int2store(T,A)	*((uint16*) (T))= (uint16) (A)
#define int3store(T,A)  do { *(T)=  (uchar) ((A));\
                            *(T+1)=(uchar) (((uint) (A) >> 8));\
                            *(T+2)=(uchar) (((A) >> 16)); } while (0)
#define int4store(T,A)	*((long *) (T))= (long) (A)
#define int5store(T,A)  do { *(T)= (uchar)((A));\
                             *((T)+1)=(uchar) (((A) >> 8));\
                             *((T)+2)=(uchar) (((A) >> 16));\
                             *((T)+3)=(uchar) (((A) >> 24)); \
                             *((T)+4)=(uchar) (((A) >> 32)); } while(0)
#define int8store(T,A)	*((ulonglong *) (T))= (ulonglong) (A)

typedef union {
  double v;
  long m[2];
} doubleget_union;
#define doubleget(V,M)	\
do { doubleget_union _tmp; \
     _tmp.m[0] = *((long*)(M)); \
     _tmp.m[1] = *(((long*) (M))+1); \
     (V) = _tmp.v; } while(0)
#define doublestore(T,V) do { *((long *) T) = ((doubleget_union *)&V)->m[0]; \
			     *(((long *) T)+1) = ((doubleget_union *)&V)->m[1]; \
                         } while (0)
#define float4get(V,M) do { *((long *) &(V)) = *((long*) (M)); } while(0)
#define float8get(V,M) doubleget((V),(M))
#define float4store(V,M) memcpy((byte*) V,(byte*) (&M),sizeof(float))
#define floatstore(T,V)  memcpy((byte*)(T), (byte*)(&V),sizeof(float))
#define floatget(V,M)    memcpy((byte*) &V,(byte*) (M),sizeof(float))
#define float8store(V,M) doublestore((V),(M))
#endif /* __i386__ */

#ifndef sint2korr
/*
  We're here if it's not a IA-32 architecture (Win32 and UNIX IA-32 defines
  were done before)
*/
#define sint2korr(A)	(int16) (((int16) ((uchar) (A)[0])) +\
				 ((int16) ((int16) (A)[1]) << 8))
#define sint3korr(A)	((int32) ((((uchar) (A)[2]) & 128) ? \
				  (((uint32) 255L << 24) | \
				   (((uint32) (uchar) (A)[2]) << 16) |\
				   (((uint32) (uchar) (A)[1]) << 8) | \
				   ((uint32) (uchar) (A)[0])) : \
				  (((uint32) (uchar) (A)[2]) << 16) |\
				  (((uint32) (uchar) (A)[1]) << 8) | \
				  ((uint32) (uchar) (A)[0])))
#define sint4korr(A)	(int32) (((int32) ((uchar) (A)[0])) +\
				(((int32) ((uchar) (A)[1]) << 8)) +\
				(((int32) ((uchar) (A)[2]) << 16)) +\
				(((int32) ((int16) (A)[3]) << 24)))
#define sint8korr(A)	(longlong) uint8korr(A)
#define uint2korr(A)	(uint16) (((uint16) ((uchar) (A)[0])) +\
				  ((uint16) ((uchar) (A)[1]) << 8))
#define uint3korr(A)	(uint32) (((uint32) ((uchar) (A)[0])) +\
				  (((uint32) ((uchar) (A)[1])) << 8) +\
				  (((uint32) ((uchar) (A)[2])) << 16))
#define uint4korr(A)	(uint32) (((uint32) ((uchar) (A)[0])) +\
				  (((uint32) ((uchar) (A)[1])) << 8) +\
				  (((uint32) ((uchar) (A)[2])) << 16) +\
				  (((uint32) ((uchar) (A)[3])) << 24))
#define uint5korr(A)	((ulonglong)(((uint32) ((uchar) (A)[0])) +\
				    (((uint32) ((uchar) (A)[1])) << 8) +\
				    (((uint32) ((uchar) (A)[2])) << 16) +\
				    (((uint32) ((uchar) (A)[3])) << 24)) +\
				    (((ulonglong) ((uchar) (A)[4])) << 32))
#define uint8korr(A)	((ulonglong)(((uint32) ((uchar) (A)[0])) +\
				    (((uint32) ((uchar) (A)[1])) << 8) +\
				    (((uint32) ((uchar) (A)[2])) << 16) +\
				    (((uint32) ((uchar) (A)[3])) << 24)) +\
			(((ulonglong) (((uint32) ((uchar) (A)[4])) +\
				    (((uint32) ((uchar) (A)[5])) << 8) +\
				    (((uint32) ((uchar) (A)[6])) << 16) +\
				    (((uint32) ((uchar) (A)[7])) << 24))) <<\
				    32))
#define int2store(T,A)       do { uint def_temp= (uint) (A) ;\
                                  *((uchar*) (T))=  (uchar)(def_temp); \
                                   *((uchar*) (T)+1)=(uchar)((def_temp >> 8)); \
                             } while(0)
#define int3store(T,A)       do { /*lint -save -e734 */\
                                  *((uchar*)(T))=(uchar) ((A));\
                                  *((uchar*) (T)+1)=(uchar) (((A) >> 8));\
                                  *((uchar*)(T)+2)=(uchar) (((A) >> 16)); \
                                  /*lint -restore */} while(0)
#define int4store(T,A)       do { *((char *)(T))=(char) ((A));\
                                  *(((char *)(T))+1)=(char) (((A) >> 8));\
                                  *(((char *)(T))+2)=(char) (((A) >> 16));\
                                  *(((char *)(T))+3)=(char) (((A) >> 24)); } while(0)
#define int5store(T,A)       do { *((char *)(T))=((A));\
                                  *(((char *)(T))+1)=(((A) >> 8));\
                                  *(((char *)(T))+2)=(((A) >> 16));\
                                  *(((char *)(T))+3)=(((A) >> 24)); \
                                  *(((char *)(T))+4)=(((A) >> 32)); } while(0)
#define int8store(T,A)       do { uint def_temp= (uint) (A), def_temp2= (uint) ((A) >> 32); \
                                  int4store((T),def_temp); \
                                  int4store((T+4),def_temp2); } while(0)
#ifdef WORDS_BIGENDIAN
#define float4store(T,A) do { *(T)= ((byte *) &A)[3];\
                              *((T)+1)=(char) ((byte *) &A)[2];\
                              *((T)+2)=(char) ((byte *) &A)[1];\
                              *((T)+3)=(char) ((byte *) &A)[0]; } while(0)

#define float4get(V,M)   do { float def_temp;\
                              ((byte*) &def_temp)[0]=(M)[3];\
                              ((byte*) &def_temp)[1]=(M)[2];\
                              ((byte*) &def_temp)[2]=(M)[1];\
                              ((byte*) &def_temp)[3]=(M)[0];\
                              (V)=def_temp; } while(0)
#define float8store(T,V) do { *(T)= ((byte *) &V)[7];\
                              *((T)+1)=(char) ((byte *) &V)[6];\
                              *((T)+2)=(char) ((byte *) &V)[5];\
                              *((T)+3)=(char) ((byte *) &V)[4];\
                              *((T)+4)=(char) ((byte *) &V)[3];\
                              *((T)+5)=(char) ((byte *) &V)[2];\
                              *((T)+6)=(char) ((byte *) &V)[1];\
                              *((T)+7)=(char) ((byte *) &V)[0]; } while(0)

#define float8get(V,M)   do { double def_temp;\
                              ((byte*) &def_temp)[0]=(M)[7];\
                              ((byte*) &def_temp)[1]=(M)[6];\
                              ((byte*) &def_temp)[2]=(M)[5];\
                              ((byte*) &def_temp)[3]=(M)[4];\
                              ((byte*) &def_temp)[4]=(M)[3];\
                              ((byte*) &def_temp)[5]=(M)[2];\
                              ((byte*) &def_temp)[6]=(M)[1];\
                              ((byte*) &def_temp)[7]=(M)[0];\
                              (V) = def_temp; } while(0)
#else
#define float4get(V,M)   memcpy_fixed((byte*) &V,(byte*) (M),sizeof(float))
#define float4store(V,M) memcpy_fixed((byte*) V,(byte*) (&M),sizeof(float))

#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
#define doublestore(T,V) do { *(((char*)T)+0)=(char) ((byte *) &V)[4];\
                              *(((char*)T)+1)=(char) ((byte *) &V)[5];\
                              *(((char*)T)+2)=(char) ((byte *) &V)[6];\
                              *(((char*)T)+3)=(char) ((byte *) &V)[7];\
                              *(((char*)T)+4)=(char) ((byte *) &V)[0];\
                              *(((char*)T)+5)=(char) ((byte *) &V)[1];\
                              *(((char*)T)+6)=(char) ((byte *) &V)[2];\
                              *(((char*)T)+7)=(char) ((byte *) &V)[3]; }\
                         while(0)
#define doubleget(V,M)   do { double def_temp;\
                              ((byte*) &def_temp)[0]=(M)[4];\
                              ((byte*) &def_temp)[1]=(M)[5];\
                              ((byte*) &def_temp)[2]=(M)[6];\
                              ((byte*) &def_temp)[3]=(M)[7];\
                              ((byte*) &def_temp)[4]=(M)[0];\
                              ((byte*) &def_temp)[5]=(M)[1];\
                              ((byte*) &def_temp)[6]=(M)[2];\
                              ((byte*) &def_temp)[7]=(M)[3];\
                              (V) = def_temp; } while(0)
#endif /* __FLOAT_WORD_ORDER */

#define float8get(V,M)   doubleget((V),(M))
#define float8store(V,M) doublestore((V),(M))
#endif /* WORDS_BIGENDIAN */

#endif /* sint2korr */

/*
  Macro for reading 32-bit integer from network byte order (big-endian)
  from unaligned memory location.
*/
#define int4net(A)        (int32) (((uint32) ((uchar) (A)[3]))        |\
				  (((uint32) ((uchar) (A)[2])) << 8)  |\
				  (((uint32) ((uchar) (A)[1])) << 16) |\
				  (((uint32) ((uchar) (A)[0])) << 24))
/*
  Define-funktions for reading and storing in machine format from/to
  short/long to/from some place in memory V should be a (not
  register) variable, M is a pointer to byte
*/

#ifdef WORDS_BIGENDIAN

#define ushortget(V,M)  do { V = (uint16) (((uint16) ((uchar) (M)[1]))+\
                                 ((uint16) ((uint16) (M)[0]) << 8)); } while(0)
#define shortget(V,M)   do { V = (short) (((short) ((uchar) (M)[1]))+\
                                 ((short) ((short) (M)[0]) << 8)); } while(0)
#define longget(V,M)    do { int32 def_temp;\
                             ((byte*) &def_temp)[0]=(M)[0];\
                             ((byte*) &def_temp)[1]=(M)[1];\
                             ((byte*) &def_temp)[2]=(M)[2];\
                             ((byte*) &def_temp)[3]=(M)[3];\
                             (V)=def_temp; } while(0)
#define ulongget(V,M)   do { uint32 def_temp;\
                            ((byte*) &def_temp)[0]=(M)[0];\
                            ((byte*) &def_temp)[1]=(M)[1];\
                            ((byte*) &def_temp)[2]=(M)[2];\
                            ((byte*) &def_temp)[3]=(M)[3];\
                            (V)=def_temp; } while(0)
#define shortstore(T,A) do { uint def_temp=(uint) (A) ;\
                             *(((char*)T)+1)=(char)(def_temp); \
                             *(((char*)T)+0)=(char)(def_temp >> 8); } while(0)
#define longstore(T,A)  do { *(((char*)T)+3)=((A));\
                             *(((char*)T)+2)=(((A) >> 8));\
                             *(((char*)T)+1)=(((A) >> 16));\
                             *(((char*)T)+0)=(((A) >> 24)); } while(0)

#define floatget(V,M)    memcpy_fixed((byte*) &V,(byte*) (M),sizeof(float))
#define floatstore(T,V)  memcpy_fixed((byte*) (T),(byte*)(&V),sizeof(float))
#define doubleget(V,M)	 memcpy_fixed((byte*) &V,(byte*) (M),sizeof(double))
#define doublestore(T,V) memcpy_fixed((byte*) (T),(byte*) &V,sizeof(double))
#define longlongget(V,M) memcpy_fixed((byte*) &V,(byte*) (M),sizeof(ulonglong))
#define longlongstore(T,V) memcpy_fixed((byte*) (T),(byte*) &V,sizeof(ulonglong))

#else

#define ushortget(V,M)	do { V = uint2korr(M); } while(0)
#define shortget(V,M)	do { V = sint2korr(M); } while(0)
#define longget(V,M)	do { V = sint4korr(M); } while(0)
#define ulongget(V,M)   do { V = uint4korr(M); } while(0)
#define shortstore(T,V) int2store(T,V)
#define longstore(T,V)	int4store(T,V)
#ifndef floatstore
#define floatstore(T,V)  memcpy_fixed((byte*) (T),(byte*) (&V),sizeof(float))
#define floatget(V,M)    memcpy_fixed((byte*) &V, (byte*) (M), sizeof(float))
#endif
#ifndef doubleget
#define doubleget(V,M)	 memcpy_fixed((byte*) &V,(byte*) (M),sizeof(double))
#define doublestore(T,V) memcpy_fixed((byte*) (T),(byte*) &V,sizeof(double))
#endif /* doubleget */
#define longlongget(V,M) memcpy_fixed((byte*) &V,(byte*) (M),sizeof(ulonglong))
#define longlongstore(T,V) memcpy_fixed((byte*) (T),(byte*) &V,sizeof(ulonglong))

#endif /* WORDS_BIGENDIAN */

/* sprintf does not always return the number of bytes :- */
#ifdef SPRINTF_RETURNS_INT
#define my_sprintf(buff,args) sprintf args
#else
#ifdef SPRINTF_RETURNS_PTR
#define my_sprintf(buff,args) ((int)(sprintf args - buff))
#else
#define my_sprintf(buff,args) ((ulong) sprintf args, (ulong) strlen(buff))
#endif
#endif

#ifndef THREAD
#define thread_safe_increment(V,L) (V)++
#define thread_safe_add(V,C,L)     (V)+=(C)
#define thread_safe_sub(V,C,L)     (V)-=(C)
#define statistic_increment(V,L)   (V)++
#define statistic_add(V,C,L)       (V)+=(C)
#endif

#ifdef HAVE_CHARSET_utf8
#define MYSQL_UNIVERSAL_CLIENT_CHARSET "utf8"
#else
#define MYSQL_UNIVERSAL_CLIENT_CHARSET MYSQL_DEFAULT_CHARSET_NAME
#endif

#if defined(EMBEDDED_LIBRARY) && !defined(HAVE_EMBEDDED_PRIVILEGE_CONTROL)
#define NO_EMBEDDED_ACCESS_CHECKS
#endif

#endif /* my_global_h */