/* Copyright (C) 2000-2003 MySQL AB   This program is free software; you can redistribute it and/or modify   it under the terms of the GNU General Public License as published by   the Free Software Foundation; either version 2 of the License, or   (at your option) any later version.   This program 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 General Public License for more details.   You should have received a copy of the GNU General Public License   along with this program; if not, write to the Free Software   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */#ifndef _my_sys_h#define _my_sys_hC_MODE_START#ifdef HAVE_AIOWAIT#include <sys/asynch.h>			/* Used by record-cache */typedef struct my_aio_result {  aio_result_t result;  int	       pending;} my_aio_result;#endif#ifndef THREADextern int NEAR my_errno;		/* Last error in mysys */#else#include <my_pthread.h>#endif#ifndef _m_ctype_h#include <m_ctype.h>                    /* for CHARSET_INFO */#endif#include <stdarg.h>#include <typelib.h>#define MYSYS_PROGRAM_USES_CURSES()  { error_handler_hook = my_message_curses;	mysys_uses_curses=1; }#define MYSYS_PROGRAM_DONT_USE_CURSES()  { error_handler_hook = my_message_no_curses; mysys_uses_curses=0;}#define MY_INIT(name);		{ my_progname= name; my_init(); }#define MAXMAPS		(4)	/* Number of error message maps */#define ERRMOD		(1000)	/* Max number of errors in a map */#define ERRMSGSIZE	(SC_MAXWIDTH)	/* Max length of a error message */#define NRERRBUFFS	(2)	/* Buffers for parameters */#define MY_FILE_ERROR	((uint) ~0)	/* General bitmaps for my_func's */#define MY_FFNF		1	/* Fatal if file not found */#define MY_FNABP	2	/* Fatal if not all bytes read/writen */#define MY_NABP		4	/* Error if not all bytes read/writen */#define MY_FAE		8	/* Fatal if any error */#define MY_WME		16	/* Write message on error */#define MY_WAIT_IF_FULL 32	/* Wait and try again if disk full error */#define MY_RAID         64      /* Support for RAID (not the "Johnson&Johnson"-s one ;) */#define MY_FULL_IO     512      /* For my_read - loop intil I/O				   is complete				*/#define MY_DONT_CHECK_FILESIZE 128	/* Option to init_io_cache() */#define MY_LINK_WARNING 32	/* my_redel() gives warning if links */#define MY_COPYTIME	64	/* my_redel() copys time */#define MY_DELETE_OLD	256	/* my_create_with_symlink() */#define MY_RESOLVE_LINK 128	/* my_realpath(); Only resolve links */#define MY_HOLD_ORIGINAL_MODES 128  /* my_copy() holds to file modes */#define MY_REDEL_MAKE_BACKUP 256#define MY_SEEK_NOT_DONE 32	/* my_lock may have to do a seek */#define MY_DONT_WAIT	64	/* my_lock() don't wait if can't lock */#define MY_ZEROFILL	32	/* my_malloc(), fill array with zero */#define MY_ALLOW_ZERO_PTR 64	/* my_realloc() ; zero ptr -> malloc */#define MY_FREE_ON_ERROR 128	/* my_realloc() ; Free old ptr on error */#define MY_HOLD_ON_ERROR 256	/* my_realloc() ; Return old ptr on error */#define MY_THREADSAFE	128	/* pread/pwrite:  Don't allow interrupts */#define MY_DONT_OVERWRITE_FILE 1024	/* my_copy; Don't overwrite file */#define MY_CHECK_ERROR	1	/* Params to my_end; Check open-close */#define MY_GIVE_INFO	2	/* Give time info about process*/#define ME_HIGHBYTE	8	/* Shift for colours */#define ME_NOCUR	1	/* Don't use curses message */#define ME_OLDWIN	2	/* Use old window */#define ME_BELL		4	/* Ring bell then printing message */#define ME_HOLDTANG	8	/* Don't delete last keys */#define ME_WAITTOT	16	/* Wait for errtime secs of for a action */#define ME_WAITTANG	32	/* Wait for a user action  */#define ME_NOREFRESH	64	/* Dont refresh screen */#define ME_NOINPUT	128	/* Dont use the input libary */#define ME_COLOUR1	((1 << ME_HIGHBYTE))	/* Possibly error-colours */#define ME_COLOUR2	((2 << ME_HIGHBYTE))#define ME_COLOUR3	((3 << ME_HIGHBYTE))	/* Bits in last argument to fn_format */#define MY_REPLACE_DIR		1	/* replace dir in name with 'dir' */#define MY_REPLACE_EXT		2	/* replace extension with 'ext' */#define MY_UNPACK_FILENAME	4	/* Unpack name (~ -> home) */#define MY_PACK_FILENAME	8	/* Pack name (home -> ~) */#define MY_RESOLVE_SYMLINKS	16	/* Resolve all symbolic links */#define MY_RETURN_REAL_PATH	32	/* return full path for file */#define MY_SAFE_PATH		64	/* Return NULL if too long path */#define MY_RELATIVE_PATH	128	/* name is relative to 'dir' */	/* My seek flags */#define MY_SEEK_SET	0#define MY_SEEK_CUR	1#define MY_SEEK_END	2	/* Some constants */#define MY_WAIT_FOR_USER_TO_FIX_PANIC	60	/* in seconds */#define MY_WAIT_GIVE_USER_A_MESSAGE	10	/* Every 10 times of prev */#define MIN_COMPRESS_LENGTH		50	/* Don't compress small bl. */#define DFLT_INIT_HITS  3	/* root_alloc flags */#define MY_KEEP_PREALLOC	1#define MY_MARK_BLOCKS_FREE     2  /* move used to free list and reuse them */	/* Internal error numbers (for assembler functions) */#define MY_ERRNO_EDOM		33#define MY_ERRNO_ERANGE		34	/* defines when allocating data */#ifdef SAFEMALLOC#define my_malloc(SZ,FLAG) _mymalloc((SZ), __FILE__, __LINE__, FLAG )#define my_malloc_ci(SZ,FLAG) _mymalloc((SZ), sFile, uLine, FLAG )#define my_realloc(PTR,SZ,FLAG) _myrealloc((PTR), (SZ), __FILE__, __LINE__, FLAG )#define my_checkmalloc() _sanity( __FILE__, __LINE__ )#define my_free(PTR,FLAG) _myfree((PTR), __FILE__, __LINE__,FLAG)#define my_memdup(A,B,C) _my_memdup((A),(B), __FILE__,__LINE__,C)#define my_strdup(A,C) _my_strdup((A), __FILE__,__LINE__,C)#define my_strdup_with_length(A,B,C) _my_strdup_with_length((A),(B),__FILE__,__LINE__,C)#define QUICK_SAFEMALLOC sf_malloc_quick=1#define NORMAL_SAFEMALLOC sf_malloc_quick=0extern uint sf_malloc_prehunc,sf_malloc_endhunc,sf_malloc_quick;extern ulonglong sf_malloc_mem_limit;#define CALLER_INFO_PROTO   , const char *sFile, uint uLine#define CALLER_INFO         , __FILE__, __LINE__#define ORIG_CALLER_INFO    , sFile, uLine#else#define my_checkmalloc()#undef TERMINATE#define TERMINATE(A) {}#define QUICK_SAFEMALLOC#define NORMAL_SAFEMALLOCextern gptr my_malloc(uint Size,myf MyFlags);#define my_malloc_ci(SZ,FLAG) my_malloc( SZ, FLAG )extern gptr my_realloc(gptr oldpoint,uint Size,myf MyFlags);extern void my_no_flags_free(gptr ptr);extern gptr my_memdup(const byte *from,uint length,myf MyFlags);extern char *my_strdup(const char *from,myf MyFlags);extern char *my_strdup_with_length(const byte *from, uint length,				   myf MyFlags);#define my_free(PTR,FG) my_no_flags_free(PTR)#define CALLER_INFO_PROTO   /* nothing */#define CALLER_INFO         /* nothing */#define ORIG_CALLER_INFO    /* nothing */#endif#ifdef HAVE_ALLOCA#if defined(_AIX) && !defined(__GNUC__) && !defined(_AIX43)#pragma alloca#endif /* _AIX */#if defined(__MWERKS__)#undef alloca#define alloca __alloca#endif /* __MWERKS__ */#if defined(__GNUC__) && !defined(HAVE_ALLOCA_H) && ! defined(alloca)#define alloca __builtin_alloca#endif /* GNUC */#define my_alloca(SZ) alloca((size_t) (SZ))#define my_afree(PTR) {}#else#define my_alloca(SZ) my_malloc(SZ,MYF(0))#define my_afree(PTR) my_free(PTR,MYF(MY_WME))#endif /* HAVE_ALLOCA */#ifdef MSDOS#ifdef __ZTC__void * __CDECL halloc(long count,size_t length);void   __CDECL hfree(void *ptr);#endif#if defined(USE_HALLOC)#if defined(_VCM_) || defined(M_IC80386)#undef USE_HALLOC#endif#endif#ifdef USE_HALLOC#define malloc(a) halloc((long) (a),1)#define free(a) hfree(a)#endif#endif /* MSDOS */#ifndef errno				/* did we already get it? */#ifdef HAVE_ERRNO_AS_DEFINE#include <errno.h>			/* errno is a define */#elseextern int errno;			/* declare errno */#endif#endif					/* #ifndef errno */extern const char ** NEAR my_errmsg[];extern char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE];extern char *home_dir;			/* Home directory for user */extern char *my_progname;		/* program-name (printed in errors) */extern char NEAR curr_dir[];		/* Current directory for user */extern int (*error_handler_hook)(uint my_err, const char *str,myf MyFlags);extern int (*fatal_error_handler_hook)(uint my_err, const char *str,				       myf MyFlags);extern uint my_file_limit;/* charsets */extern CHARSET_INFO *default_charset_info;extern CHARSET_INFO *all_charsets[256];extern CHARSET_INFO compiled_charsets[];/* statistics */extern ulong	my_cache_w_requests, my_cache_write, my_cache_r_requests,		my_cache_read;extern ulong	my_blocks_used, my_blocks_changed;extern ulong	my_file_opened,my_stream_opened, my_tmp_file_created;extern uint	mysys_usage_id;extern my_bool	my_init_done;					/* Point to current my_message() */extern void (*my_sigtstp_cleanup)(void),					/* Executed before jump to shell */	    (*my_sigtstp_restart)(void),	    (*my_abort_hook)(int);					/* Executed when comming from shell */extern int NEAR my_umask,		/* Default creation mask  */	   NEAR my_umask_dir,	   NEAR my_recived_signals,	/* Signals we have got */	   NEAR my_safe_to_handle_signal, /* Set when allowed to SIGTSTP */	   NEAR my_dont_interrupt;	/* call remember_intr when set */extern my_bool NEAR mysys_uses_curses, my_use_symdir;extern ulong sf_malloc_cur_memory, sf_malloc_max_memory;extern ulong	my_default_record_cache_size;extern my_bool NEAR my_disable_locking,NEAR my_disable_async_io,               NEAR my_disable_flush_key_blocks, NEAR my_disable_symlinks;extern char	wild_many,wild_one,wild_prefix;extern const char *charsets_dir;extern char *defaults_extra_file;typedef struct wild_file_pack	/* Struct to hold info when selecting files */{  uint		wilds;		/* How many wildcards */  uint		not_pos;	/* Start of not-theese-files */  my_string	*wild;		/* Pointer to wildcards */} WF_PACK;enum loglevel {   ERROR_LEVEL,   WARNING_LEVEL,   INFORMATION_LEVEL};enum cache_type{  READ_CACHE,WRITE_CACHE,  SEQ_READ_APPEND		/* sequential read or append */,  READ_FIFO, READ_NET,WRITE_NET};enum flush_type{  FLUSH_KEEP, FLUSH_RELEASE, FLUSH_IGNORE_CHANGED, FLUSH_FORCE_WRITE};typedef struct st_record_cache	/* Used when cacheing records */