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-rw-r--r--src/mysql/my_sys.h1808
1 files changed, 904 insertions, 904 deletions
diff --git a/src/mysql/my_sys.h b/src/mysql/my_sys.h
index 83de59990..44fe383bf 100644
--- a/src/mysql/my_sys.h
+++ b/src/mysql/my_sys.h
@@ -1,904 +1,904 @@
-/* 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_h
-C_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 THREAD
-extern 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 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_IGNORE_BADFD 32 /* my_sync: ignore 'bad descriptor' errors */
-#define MY_RAID 64 /* Support for RAID */
-#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
-
- /* Bits for get_date timeflag */
-#define GETDATE_DATE_TIME 1
-#define GETDATE_SHORT_DATE 2
-#define GETDATE_HHMMSSTIME 4
-#define GETDATE_GMT 8
-#define GETDATE_FIXEDLENGTH 16
-
- /* 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 TRASH(A,B) bfill(A, B, 0x8F)
-#define QUICK_SAFEMALLOC sf_malloc_quick=1
-#define NORMAL_SAFEMALLOC sf_malloc_quick=0
-extern 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_SAFEMALLOC
-extern 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);
-/* we do use FG (as a no-op) in below so that a typo on FG is caught */
-#define my_free(PTR,FG) ((void)FG,my_no_flags_free(PTR))
-#define CALLER_INFO_PROTO /* nothing */
-#define CALLER_INFO /* nothing */
-#define ORIG_CALLER_INFO /* nothing */
-#define TRASH(A,B) /* nothing */
-#endif
-
-#ifdef HAVE_LARGE_PAGES
-extern uint my_get_large_page_size(void);
-extern gptr my_large_malloc(uint size, myf my_flags);
-extern void my_large_free(gptr ptr, myf my_flags);
-#else
-#define my_get_large_page_size() (0)
-#define my_large_malloc(A,B) my_malloc_lock((A),(B))
-#define my_large_free(A,B) my_free_lock((A),(B))
-#endif /* HAVE_LARGE_PAGES */
-
-#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 */
-#else
-extern int errno; /* declare errno */
-#endif
-#endif /* #ifndef errno */
-extern char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE];
-extern char *home_dir; /* Home directory for user */
-extern const 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;
-
-#ifdef HAVE_LARGE_PAGES
-extern my_bool my_use_large_pages;
-extern uint my_large_page_size;
-#endif
-
-/* charsets */
-extern CHARSET_INFO *default_charset_info;
-extern CHARSET_INFO *all_charsets[256];
-extern CHARSET_INFO compiled_charsets[];
-
-/* statistics */
-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;
-extern const char *defaults_group_suffix;
-extern const char *defaults_file;
-
-extern my_bool timed_mutexes;
-
-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
-{
- TYPE_NOT_SET= 0, 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 */
-{
- File file;
- int rc_seek,error,inited;
- uint rc_length,read_length,reclength;
- my_off_t rc_record_pos,end_of_file;
- byte *rc_buff,*rc_buff2,*rc_pos,*rc_end,*rc_request_pos;
-#ifdef HAVE_AIOWAIT
- int use_async_io;
- my_aio_result aio_result;
-#endif
- enum cache_type type;
-} RECORD_CACHE;
-
-enum file_type
-{
- UNOPEN = 0, FILE_BY_OPEN, FILE_BY_CREATE, STREAM_BY_FOPEN, STREAM_BY_FDOPEN,
- FILE_BY_MKSTEMP, FILE_BY_DUP
-};
-
-struct st_my_file_info
-{
- my_string name;
- enum file_type type;
-#if defined(THREAD) && !defined(HAVE_PREAD)
- pthread_mutex_t mutex;
-#endif
-};
-
-extern struct st_my_file_info *my_file_info;
-
-typedef struct st_my_tmpdir
-{
- char **list;
- uint cur, max;
-#ifdef THREAD
- pthread_mutex_t mutex;
-#endif
-} MY_TMPDIR;
-
-typedef struct st_dynamic_array
-{
- char *buffer;
- uint elements,max_element;
- uint alloc_increment;
- uint size_of_element;
-} DYNAMIC_ARRAY;
-
-typedef struct st_dynamic_string
-{
- char *str;
- uint length,max_length,alloc_increment;
-} DYNAMIC_STRING;
-
-struct st_io_cache;
-typedef int (*IO_CACHE_CALLBACK)(struct st_io_cache*);
-
-#ifdef THREAD
-typedef struct st_io_cache_share
-{
- /* to sync on reads into buffer */
- pthread_mutex_t mutex;
- pthread_cond_t cond;
- int count, total;
- /* actual IO_CACHE that filled the buffer */
- struct st_io_cache *active;
-#ifdef NOT_YET_IMPLEMENTED
- /* whether the structure should be free'd */
- my_bool alloced;
-#endif
-} IO_CACHE_SHARE;
-#endif
-
-typedef struct st_io_cache /* Used when cacheing files */
-{
- /* Offset in file corresponding to the first byte of byte* buffer. */
- my_off_t pos_in_file;
- /*
- The offset of end of file for READ_CACHE and WRITE_CACHE.
- For SEQ_READ_APPEND it the maximum of the actual end of file and
- the position represented by read_end.
- */
- my_off_t end_of_file;
- /* Points to current read position in the buffer */
- byte *read_pos;
- /* the non-inclusive boundary in the buffer for the currently valid read */
- byte *read_end;
- byte *buffer; /* The read buffer */
- /* Used in ASYNC_IO */
- byte *request_pos;
-
- /* Only used in WRITE caches and in SEQ_READ_APPEND to buffer writes */
- byte *write_buffer;
- /*
- Only used in SEQ_READ_APPEND, and points to the current read position
- in the write buffer. Note that reads in SEQ_READ_APPEND caches can
- happen from both read buffer (byte* buffer) and write buffer
- (byte* write_buffer).
- */
- byte *append_read_pos;
- /* Points to current write position in the write buffer */
- byte *write_pos;
- /* The non-inclusive boundary of the valid write area */
- byte *write_end;
-
- /*
- Current_pos and current_end are convenience variables used by
- my_b_tell() and other routines that need to know the current offset
- current_pos points to &write_pos, and current_end to &write_end in a
- WRITE_CACHE, and &read_pos and &read_end respectively otherwise
- */
- byte **current_pos, **current_end;
-#ifdef THREAD
- /*
- The lock is for append buffer used in SEQ_READ_APPEND cache
- need mutex copying from append buffer to read buffer.
- */
- pthread_mutex_t append_buffer_lock;
- /*
- The following is used when several threads are reading the
- same file in parallel. They are synchronized on disk
- accesses reading the cached part of the file asynchronously.
- It should be set to NULL to disable the feature. Only
- READ_CACHE mode is supported.
- */
- IO_CACHE_SHARE *share;
-#endif
- /*
- A caller will use my_b_read() macro to read from the cache
- if the data is already in cache, it will be simply copied with
- memcpy() and internal variables will be accordinging updated with
- no functions invoked. However, if the data is not fully in the cache,
- my_b_read() will call read_function to fetch the data. read_function
- must never be invoked directly.
- */
- int (*read_function)(struct st_io_cache *,byte *,uint);
- /*
- Same idea as in the case of read_function, except my_b_write() needs to
- be replaced with my_b_append() for a SEQ_READ_APPEND cache
- */
- int (*write_function)(struct st_io_cache *,const byte *,uint);
- /*
- Specifies the type of the cache. Depending on the type of the cache
- certain operations might not be available and yield unpredicatable
- results. Details to be documented later
- */
- enum cache_type type;
- /*
- Callbacks when the actual read I/O happens. These were added and
- are currently used for binary logging of LOAD DATA INFILE - when a
- block is read from the file, we create a block create/append event, and
- when IO_CACHE is closed, we create an end event. These functions could,
- of course be used for other things
- */
- IO_CACHE_CALLBACK pre_read;
- IO_CACHE_CALLBACK post_read;
- IO_CACHE_CALLBACK pre_close;
- /*
- Counts the number of times, when we were forced to use disk. We use it to
- increase the binlog_cache_disk_use status variable.
- */
- ulong disk_writes;
- void* arg; /* for use by pre/post_read */
- char *file_name; /* if used with 'open_cached_file' */
- char *dir,*prefix;
- File file; /* file descriptor */
- /*
- seek_not_done is set by my_b_seek() to inform the upcoming read/write
- operation that a seek needs to be preformed prior to the actual I/O
- error is 0 if the cache operation was successful, -1 if there was a
- "hard" error, and the actual number of I/O-ed bytes if the read/write was
- partial.
- */
- int seek_not_done,error;
- /* buffer_length is memory size allocated for buffer or write_buffer */
- uint buffer_length;
- /* read_length is the same as buffer_length except when we use async io */
- uint read_length;
- myf myflags; /* Flags used to my_read/my_write */
- /*
- alloced_buffer is 1 if the buffer was allocated by init_io_cache() and
- 0 if it was supplied by the user.
- Currently READ_NET is the only one that will use a buffer allocated
- somewhere else
- */
- my_bool alloced_buffer;
-#ifdef HAVE_AIOWAIT
- /*
- As inidicated by ifdef, this is for async I/O, which is not currently
- used (because it's not reliable on all systems)
- */
- uint inited;
- my_off_t aio_read_pos;
- my_aio_result aio_result;
-#endif
-} IO_CACHE;
-
-typedef int (*qsort2_cmp)(const void *, const void *, const void *);
-
- /* defines for mf_iocache */
-
- /* Test if buffer is inited */
-#define my_b_clear(info) (info)->buffer=0
-#define my_b_inited(info) (info)->buffer
-#define my_b_EOF INT_MIN
-
-#define my_b_read(info,Buffer,Count) \
- ((info)->read_pos + (Count) <= (info)->read_end ?\
- (memcpy(Buffer,(info)->read_pos,(size_t) (Count)), \
- ((info)->read_pos+=(Count)),0) :\
- (*(info)->read_function)((info),Buffer,Count))
-
-#define my_b_write(info,Buffer,Count) \
- ((info)->write_pos + (Count) <=(info)->write_end ?\
- (memcpy((info)->write_pos, (Buffer), (size_t)(Count)),\
- ((info)->write_pos+=(Count)),0) : \
- (*(info)->write_function)((info),(Buffer),(Count)))
-
-#define my_b_get(info) \
- ((info)->read_pos != (info)->read_end ?\
- ((info)->read_pos++, (int) (uchar) (info)->read_pos[-1]) :\
- _my_b_get(info))
-
- /* my_b_write_byte dosn't have any err-check */
-#define my_b_write_byte(info,chr) \
- (((info)->write_pos < (info)->write_end) ?\
- ((*(info)->write_pos++)=(chr)) :\
- (_my_b_write(info,0,0) , ((*(info)->write_pos++)=(chr))))
-
-#define my_b_fill_cache(info) \
- (((info)->read_end=(info)->read_pos),(*(info)->read_function)(info,0,0))
-
-#define my_b_tell(info) ((info)->pos_in_file + \
- (uint) (*(info)->current_pos - (info)->request_pos))
-
-/* tell write offset in the SEQ_APPEND cache */
-my_off_t my_b_append_tell(IO_CACHE* info);
-my_off_t my_b_safe_tell(IO_CACHE* info); /* picks the correct tell() */
-
-#define my_b_bytes_in_cache(info) (uint) (*(info)->current_end - \
- *(info)->current_pos)
-
-typedef uint32 ha_checksum;
-
-/* Define the type of function to be passed to process_default_option_files */
-typedef int (*Process_option_func)(void *ctx, const char *group_name,
- const char *option);
-
-#include <my_alloc.h>
-
- /* Prototypes for mysys and my_func functions */
-
-extern int my_copy(const char *from,const char *to,myf MyFlags);
-extern int my_append(const char *from,const char *to,myf MyFlags);
-extern int my_delete(const char *name,myf MyFlags);
-extern int my_getwd(my_string buf,uint size,myf MyFlags);
-extern int my_setwd(const char *dir,myf MyFlags);
-extern int my_lock(File fd,int op,my_off_t start, my_off_t length,myf MyFlags);
-extern gptr my_once_alloc(uint Size,myf MyFlags);
-extern void my_once_free(void);
-extern char *my_once_strdup(const char *src,myf myflags);
-extern char *my_once_memdup(const char *src, uint len, myf myflags);
-extern File my_open(const char *FileName,int Flags,myf MyFlags);
-extern File my_register_filename(File fd, const char *FileName,
- enum file_type type_of_file,
- uint error_message_number, myf MyFlags);
-extern File my_create(const char *FileName,int CreateFlags,
- int AccsesFlags, myf MyFlags);
-extern int my_close(File Filedes,myf MyFlags);
-extern File my_dup(File file, myf MyFlags);
-extern int my_mkdir(const char *dir, int Flags, myf MyFlags);
-extern int my_readlink(char *to, const char *filename, myf MyFlags);
-extern int my_realpath(char *to, const char *filename, myf MyFlags);
-extern File my_create_with_symlink(const char *linkname, const char *filename,
- int createflags, int access_flags,
- myf MyFlags);
-extern int my_delete_with_symlink(const char *name, myf MyFlags);
-extern int my_rename_with_symlink(const char *from,const char *to,myf MyFlags);
-extern int my_symlink(const char *content, const char *linkname, myf MyFlags);
-extern uint my_read(File Filedes,byte *Buffer,uint Count,myf MyFlags);
-extern uint my_pread(File Filedes,byte *Buffer,uint Count,my_off_t offset,
- myf MyFlags);
-extern int my_rename(const char *from,const char *to,myf MyFlags);
-extern my_off_t my_seek(File fd,my_off_t pos,int whence,myf MyFlags);
-extern my_off_t my_tell(File fd,myf MyFlags);
-extern uint my_write(File Filedes,const byte *Buffer,uint Count,
- myf MyFlags);
-extern uint my_pwrite(File Filedes,const byte *Buffer,uint Count,
- my_off_t offset,myf MyFlags);
-extern uint my_fread(FILE *stream,byte *Buffer,uint Count,myf MyFlags);
-extern uint my_fwrite(FILE *stream,const byte *Buffer,uint Count,
- myf MyFlags);
-extern my_off_t my_fseek(FILE *stream,my_off_t pos,int whence,myf MyFlags);
-extern my_off_t my_ftell(FILE *stream,myf MyFlags);
-extern gptr _mymalloc(uint uSize,const char *sFile,
- uint uLine, myf MyFlag);
-extern gptr _myrealloc(gptr pPtr,uint uSize,const char *sFile,
- uint uLine, myf MyFlag);
-extern gptr my_multi_malloc _VARARGS((myf MyFlags, ...));
-extern void _myfree(gptr pPtr,const char *sFile,uint uLine, myf MyFlag);
-extern int _sanity(const char *sFile,unsigned int uLine);
-extern gptr _my_memdup(const byte *from,uint length,
- const char *sFile, uint uLine,myf MyFlag);
-extern my_string _my_strdup(const char *from, const char *sFile, uint uLine,
- myf MyFlag);
-extern char *_my_strdup_with_length(const byte *from, uint length,
- const char *sFile, uint uLine,
- myf MyFlag);
-
-#ifdef __WIN__
-extern int my_access(const char *path, int amode);
-extern File my_sopen(const char *path, int oflag, int shflag, int pmode);
-#else
-#define my_access access
-#endif
-extern int check_if_legal_filename(const char *path);
-
-#ifndef TERMINATE
-extern void TERMINATE(FILE *file);
-#endif
-extern void init_glob_errs(void);
-extern FILE *my_fopen(const char *FileName,int Flags,myf MyFlags);
-extern FILE *my_fdopen(File Filedes,const char *name, int Flags,myf MyFlags);
-extern int my_fclose(FILE *fd,myf MyFlags);
-extern int my_chsize(File fd,my_off_t newlength, int filler, myf MyFlags);
-extern int my_sync(File fd, myf my_flags);
-extern int my_error _VARARGS((int nr,myf MyFlags, ...));
-extern int my_printf_error _VARARGS((uint my_err, const char *format,
- myf MyFlags, ...)
- __attribute__ ((format (printf, 2, 4))));
-extern int my_error_register(const char **errmsgs, int first, int last);
-extern const char **my_error_unregister(int first, int last);
-extern int my_message(uint my_err, const char *str,myf MyFlags);
-extern int my_message_no_curses(uint my_err, const char *str,myf MyFlags);
-extern int my_message_curses(uint my_err, const char *str,myf MyFlags);
-extern my_bool my_init(void);
-extern void my_end(int infoflag);
-extern int my_redel(const char *from, const char *to, int MyFlags);
-extern int my_copystat(const char *from, const char *to, int MyFlags);
-extern my_string my_filename(File fd);
-
-#ifndef THREAD
-extern void dont_break(void);
-extern void allow_break(void);
-#else
-#define dont_break()
-#define allow_break()
-#endif
-
-extern my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist);
-extern char *my_tmpdir(MY_TMPDIR *tmpdir);
-extern void free_tmpdir(MY_TMPDIR *tmpdir);
-
-extern void my_remember_signal(int signal_number,sig_handler (*func)(int));
-extern uint dirname_part(my_string to,const char *name);
-extern uint dirname_length(const char *name);
-#define base_name(A) (A+dirname_length(A))
-extern int test_if_hard_path(const char *dir_name);
-extern my_bool has_path(const char *name);
-extern char *convert_dirname(char *to, const char *from, const char *from_end);
-extern void to_unix_path(my_string name);
-extern my_string fn_ext(const char *name);
-extern my_string fn_same(my_string toname,const char *name,int flag);
-extern my_string fn_format(my_string to,const char *name,const char *dir,
- const char *form, uint flag);
-extern size_s strlength(const char *str);
-extern void pack_dirname(my_string to,const char *from);
-extern uint unpack_dirname(my_string to,const char *from);
-extern uint cleanup_dirname(my_string to,const char *from);
-extern uint system_filename(my_string to,const char *from);
-extern uint unpack_filename(my_string to,const char *from);
-extern my_string intern_filename(my_string to,const char *from);
-extern my_string directory_file_name(my_string dst, const char *src);
-extern int pack_filename(my_string to, const char *name, size_s max_length);
-extern my_string my_path(my_string to,const char *progname,
- const char *own_pathname_part);
-extern my_string my_load_path(my_string to, const char *path,
- const char *own_path_prefix);
-extern int wild_compare(const char *str,const char *wildstr,pbool str_is_pattern);
-extern WF_PACK *wf_comp(my_string str);
-extern int wf_test(struct wild_file_pack *wf_pack,const char *name);
-extern void wf_end(struct wild_file_pack *buffer);
-extern size_s strip_sp(my_string str);
-extern void get_date(my_string to,int timeflag,time_t use_time);
-extern void soundex(CHARSET_INFO *, my_string out_pntr, my_string in_pntr,pbool remove_garbage);
-extern int init_record_cache(RECORD_CACHE *info,uint cachesize,File file,
- uint reclength,enum cache_type type,
- pbool use_async_io);
-extern int read_cache_record(RECORD_CACHE *info,byte *to);
-extern int end_record_cache(RECORD_CACHE *info);
-extern int write_cache_record(RECORD_CACHE *info,my_off_t filepos,
- const byte *record,uint length);
-extern int flush_write_cache(RECORD_CACHE *info);
-extern long my_clock(void);
-extern sig_handler sigtstp_handler(int signal_number);
-extern void handle_recived_signals(void);
-
-extern sig_handler my_set_alarm_variable(int signo);
-extern void my_string_ptr_sort(void *base,uint items,size_s size);
-extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements,
- size_s size_of_element,uchar *buffer[]);
-extern qsort_t qsort2(void *base_ptr, size_t total_elems, size_t size,
- qsort2_cmp cmp, void *cmp_argument);
-extern qsort2_cmp get_ptr_compare(uint);
-void my_store_ptr(byte *buff, uint pack_length, my_off_t pos);
-my_off_t my_get_ptr(byte *ptr, uint pack_length);
-extern int init_io_cache(IO_CACHE *info,File file,uint cachesize,
- enum cache_type type,my_off_t seek_offset,
- pbool use_async_io, myf cache_myflags);
-extern my_bool reinit_io_cache(IO_CACHE *info,enum cache_type type,
- my_off_t seek_offset,pbool use_async_io,
- pbool clear_cache);
-extern void setup_io_cache(IO_CACHE* info);
-extern int _my_b_read(IO_CACHE *info,byte *Buffer,uint Count);
-#ifdef THREAD
-extern int _my_b_read_r(IO_CACHE *info,byte *Buffer,uint Count);
-extern void init_io_cache_share(IO_CACHE *info,
- IO_CACHE_SHARE *s, uint num_threads);
-extern void remove_io_thread(IO_CACHE *info);
-#endif
-extern int _my_b_seq_read(IO_CACHE *info,byte *Buffer,uint Count);
-extern int _my_b_net_read(IO_CACHE *info,byte *Buffer,uint Count);
-extern int _my_b_get(IO_CACHE *info);
-extern int _my_b_async_read(IO_CACHE *info,byte *Buffer,uint Count);
-extern int _my_b_write(IO_CACHE *info,const byte *Buffer,uint Count);
-extern int my_b_append(IO_CACHE *info,const byte *Buffer,uint Count);
-extern int my_b_safe_write(IO_CACHE *info,const byte *Buffer,uint Count);
-
-extern int my_block_write(IO_CACHE *info, const byte *Buffer,
- uint Count, my_off_t pos);
-extern int my_b_flush_io_cache(IO_CACHE *info, int need_append_buffer_lock);
-
-#define flush_io_cache(info) my_b_flush_io_cache((info),1)
-
-extern int end_io_cache(IO_CACHE *info);
-extern uint my_b_fill(IO_CACHE *info);
-extern void my_b_seek(IO_CACHE *info,my_off_t pos);
-extern uint my_b_gets(IO_CACHE *info, char *to, uint max_length);
-extern my_off_t my_b_filelength(IO_CACHE *info);
-extern uint my_b_printf(IO_CACHE *info, const char* fmt, ...);
-extern uint my_b_vprintf(IO_CACHE *info, const char* fmt, va_list ap);
-extern my_bool open_cached_file(IO_CACHE *cache,const char *dir,
- const char *prefix, uint cache_size,
- myf cache_myflags);
-extern my_bool real_open_cached_file(IO_CACHE *cache);
-extern void close_cached_file(IO_CACHE *cache);
-File create_temp_file(char *to, const char *dir, const char *pfx,
- int mode, myf MyFlags);
-#define my_init_dynamic_array(A,B,C,D) init_dynamic_array(A,B,C,D CALLER_INFO)
-#define my_init_dynamic_array_ci(A,B,C,D) init_dynamic_array(A,B,C,D ORIG_CALLER_INFO)
-extern my_bool init_dynamic_array(DYNAMIC_ARRAY *array,uint element_size,
- uint init_alloc,uint alloc_increment
- CALLER_INFO_PROTO);
-extern my_bool insert_dynamic(DYNAMIC_ARRAY *array,gptr element);
-extern byte *alloc_dynamic(DYNAMIC_ARRAY *array);
-extern byte *pop_dynamic(DYNAMIC_ARRAY*);
-extern my_bool set_dynamic(DYNAMIC_ARRAY *array,gptr element,uint array_index);
-extern void get_dynamic(DYNAMIC_ARRAY *array,gptr element,uint array_index);
-extern void delete_dynamic(DYNAMIC_ARRAY *array);
-extern void delete_dynamic_element(DYNAMIC_ARRAY *array, uint array_index);
-extern void freeze_size(DYNAMIC_ARRAY *array);
-#define dynamic_array_ptr(array,array_index) ((array)->buffer+(array_index)*(array)->size_of_element)
-#define dynamic_element(array,array_index,type) ((type)((array)->buffer) +(array_index))
-#define push_dynamic(A,B) insert_dynamic(A,B)
-#define reset_dynamic(array) ((array)->elements= 0)
-
-extern my_bool init_dynamic_string(DYNAMIC_STRING *str, const char *init_str,
- uint init_alloc,uint alloc_increment);
-extern my_bool dynstr_append(DYNAMIC_STRING *str, const char *append);
-my_bool dynstr_append_mem(DYNAMIC_STRING *str, const char *append,
- uint length);
-extern my_bool dynstr_set(DYNAMIC_STRING *str, const char *init_str);
-extern my_bool dynstr_realloc(DYNAMIC_STRING *str, ulong additional_size);
-extern void dynstr_free(DYNAMIC_STRING *str);
-#ifdef HAVE_MLOCK
-extern byte *my_malloc_lock(uint length,myf flags);
-extern void my_free_lock(byte *ptr,myf flags);
-#else
-#define my_malloc_lock(A,B) my_malloc((A),(B))
-#define my_free_lock(A,B) my_free((A),(B))
-#endif
-#define alloc_root_inited(A) ((A)->min_malloc != 0)
-#define ALLOC_ROOT_MIN_BLOCK_SIZE (MALLOC_OVERHEAD + sizeof(USED_MEM) + 8)
-#define clear_alloc_root(A) do { (A)->free= (A)->used= (A)->pre_alloc= 0; (A)->min_malloc=0;} while(0)
-extern void init_alloc_root(MEM_ROOT *mem_root, uint block_size,
- uint pre_alloc_size);
-extern gptr alloc_root(MEM_ROOT *mem_root,unsigned int Size);
-extern gptr multi_alloc_root(MEM_ROOT *mem_root, ...);
-extern void free_root(MEM_ROOT *root, myf MyFLAGS);
-extern void set_prealloc_root(MEM_ROOT *root, char *ptr);
-extern void reset_root_defaults(MEM_ROOT *mem_root, uint block_size,
- uint prealloc_size);
-extern char *strdup_root(MEM_ROOT *root,const char *str);
-extern char *strmake_root(MEM_ROOT *root,const char *str,uint len);
-extern char *memdup_root(MEM_ROOT *root,const char *str,uint len);
-extern int get_defaults_options(int argc, char **argv,
- char **defaults, char **extra_defaults,
- char **group_suffix);
-extern int load_defaults(const char *conf_file, const char **groups,
- int *argc, char ***argv);
-extern int modify_defaults_file(const char *file_location, const char *option,
- const char *option_value,
- const char *section_name, int remove_option);
-extern int my_search_option_files(const char *conf_file, int *argc,
- char ***argv, uint *args_used,
- Process_option_func func, void *func_ctx);
-extern void free_defaults(char **argv);
-extern void my_print_default_files(const char *conf_file);
-extern void print_defaults(const char *conf_file, const char **groups);
-extern my_bool my_compress(byte *, ulong *, ulong *);
-extern my_bool my_uncompress(byte *, ulong *, ulong *);
-extern byte *my_compress_alloc(const byte *packet, ulong *len, ulong *complen);
-extern ha_checksum my_checksum(ha_checksum crc, const byte *mem, uint count);
-extern uint my_bit_log2(ulong value);
-extern uint my_count_bits(ulonglong v);
-extern uint my_count_bits_ushort(ushort v);
-extern void my_sleep(ulong m_seconds);
-extern ulong crc32(ulong crc, const uchar *buf, uint len);
-extern uint my_set_max_open_files(uint files);
-void my_free_open_file_info(void);
-
-ulonglong my_getsystime(void);
-my_bool my_gethwaddr(uchar *to);
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-
-#ifndef MAP_NOSYNC
-#define MAP_NOSYNC 0
-#endif
-
-#define my_mmap(a,b,c,d,e,f) mmap(a,b,c,d,e,f)
-#ifdef HAVE_GETPAGESIZE
-#define my_getpagesize() getpagesize()
-#else
-/* qnx ? */
-#define my_getpagesize() 8192
-#endif
-#define my_munmap(a,b) munmap((a),(b))
-
-#else
-/* not a complete set of mmap() flags, but only those that nesessary */
-#define PROT_READ 1
-#define PROT_WRITE 2
-#define MAP_SHARED 0x0001
-#define MAP_NOSYNC 0x0800
-#define MAP_FAILED ((void *)-1)
-#define MS_SYNC 0x0000
-
-#ifndef __NETWARE__
-#define HAVE_MMAP
-#endif
-
-int my_getpagesize(void);
-void *my_mmap(void *, size_t, int, int, int, my_off_t);
-int my_munmap(void *, size_t);
-#endif
-
-int my_msync(int, void *, size_t, int);
-
-/* character sets */
-extern uint get_charset_number(const char *cs_name, uint cs_flags);
-extern uint get_collation_number(const char *name);
-extern const char *get_charset_name(uint cs_number);
-
-extern CHARSET_INFO *get_charset(uint cs_number, myf flags);
-extern CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags);
-extern CHARSET_INFO *get_charset_by_csname(const char *cs_name,
- uint cs_flags, myf my_flags);
-extern void free_charsets(void);
-extern char *get_charsets_dir(char *buf);
-extern my_bool my_charset_same(CHARSET_INFO *cs1, CHARSET_INFO *cs2);
-extern my_bool init_compiled_charsets(myf flags);
-extern void add_compiled_collation(CHARSET_INFO *cs);
-extern ulong escape_string_for_mysql(CHARSET_INFO *charset_info,
- char *to, ulong to_length,
- const char *from, ulong length);
-#ifdef __WIN__
-#define BACKSLASH_MBTAIL
-/* File system character set */
-extern CHARSET_INFO *fs_character_set(void);
-#endif
-extern ulong escape_quotes_for_mysql(CHARSET_INFO *charset_info,
- char *to, ulong to_length,
- const char *from, ulong length);
-
-extern void thd_increment_bytes_sent(ulong length);
-extern void thd_increment_bytes_received(ulong length);
-extern void thd_increment_net_big_packet_count(ulong length);
-
-#ifdef __WIN__
-extern my_bool have_tcpip; /* Is set if tcpip is used */
-
-/* implemented in my_windac.c */
-
-int my_security_attr_create(SECURITY_ATTRIBUTES **psa, const char **perror,
- DWORD owner_rights, DWORD everybody_rights);
-
-void my_security_attr_free(SECURITY_ATTRIBUTES *sa);
-
-/* implemented in my_conio.c */
-char* my_cgets(char *string, unsigned long clen, unsigned long* plen);
-
-#endif
-#ifdef __NETWARE__
-void netware_reg_user(const char *ip, const char *user,
- const char *application);
-#endif
-
-C_MODE_END
-#include "raid.h"
-#endif /* _my_sys_h */
+/* 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_h
+C_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 THREAD
+extern 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 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_IGNORE_BADFD 32 /* my_sync: ignore 'bad descriptor' errors */
+#define MY_RAID 64 /* Support for RAID */
+#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
+
+ /* Bits for get_date timeflag */
+#define GETDATE_DATE_TIME 1
+#define GETDATE_SHORT_DATE 2
+#define GETDATE_HHMMSSTIME 4
+#define GETDATE_GMT 8
+#define GETDATE_FIXEDLENGTH 16
+
+ /* 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 TRASH(A,B) bfill(A, B, 0x8F)
+#define QUICK_SAFEMALLOC sf_malloc_quick=1
+#define NORMAL_SAFEMALLOC sf_malloc_quick=0
+extern 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_SAFEMALLOC
+extern 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);
+/* we do use FG (as a no-op) in below so that a typo on FG is caught */
+#define my_free(PTR,FG) ((void)FG,my_no_flags_free(PTR))
+#define CALLER_INFO_PROTO /* nothing */
+#define CALLER_INFO /* nothing */
+#define ORIG_CALLER_INFO /* nothing */
+#define TRASH(A,B) /* nothing */
+#endif
+
+#ifdef HAVE_LARGE_PAGES
+extern uint my_get_large_page_size(void);
+extern gptr my_large_malloc(uint size, myf my_flags);
+extern void my_large_free(gptr ptr, myf my_flags);
+#else
+#define my_get_large_page_size() (0)
+#define my_large_malloc(A,B) my_malloc_lock((A),(B))
+#define my_large_free(A,B) my_free_lock((A),(B))
+#endif /* HAVE_LARGE_PAGES */
+
+#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 */
+#else
+extern int errno; /* declare errno */
+#endif
+#endif /* #ifndef errno */
+extern char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE];
+extern char *home_dir; /* Home directory for user */
+extern const 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;
+
+#ifdef HAVE_LARGE_PAGES
+extern my_bool my_use_large_pages;
+extern uint my_large_page_size;
+#endif
+
+/* charsets */
+extern CHARSET_INFO *default_charset_info;
+extern CHARSET_INFO *all_charsets[256];
+extern CHARSET_INFO compiled_charsets[];
+
+/* statistics */
+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;
+extern const char *defaults_group_suffix;
+extern const char *defaults_file;
+
+extern my_bool timed_mutexes;
+
+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
+{
+ TYPE_NOT_SET= 0, 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 */
+{
+ File file;
+ int rc_seek,error,inited;
+ uint rc_length,read_length,reclength;
+ my_off_t rc_record_pos,end_of_file;
+ byte *rc_buff,*rc_buff2,*rc_pos,*rc_end,*rc_request_pos;
+#ifdef HAVE_AIOWAIT
+ int use_async_io;
+ my_aio_result aio_result;
+#endif
+ enum cache_type type;
+} RECORD_CACHE;
+
+enum file_type
+{
+ UNOPEN = 0, FILE_BY_OPEN, FILE_BY_CREATE, STREAM_BY_FOPEN, STREAM_BY_FDOPEN,
+ FILE_BY_MKSTEMP, FILE_BY_DUP
+};
+
+struct st_my_file_info
+{
+ my_string name;
+ enum file_type type;
+#if defined(THREAD) && !defined(HAVE_PREAD)
+ pthread_mutex_t mutex;
+#endif
+};
+
+extern struct st_my_file_info *my_file_info;
+
+typedef struct st_my_tmpdir
+{
+ char **list;
+ uint cur, max;
+#ifdef THREAD
+ pthread_mutex_t mutex;
+#endif
+} MY_TMPDIR;
+
+typedef struct st_dynamic_array
+{
+ char *buffer;
+ uint elements,max_element;
+ uint alloc_increment;
+ uint size_of_element;
+} DYNAMIC_ARRAY;
+
+typedef struct st_dynamic_string
+{
+ char *str;
+ uint length,max_length,alloc_increment;
+} DYNAMIC_STRING;
+
+struct st_io_cache;
+typedef int (*IO_CACHE_CALLBACK)(struct st_io_cache*);
+
+#ifdef THREAD
+typedef struct st_io_cache_share
+{
+ /* to sync on reads into buffer */
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ int count, total;
+ /* actual IO_CACHE that filled the buffer */
+ struct st_io_cache *active;
+#ifdef NOT_YET_IMPLEMENTED
+ /* whether the structure should be free'd */
+ my_bool alloced;
+#endif
+} IO_CACHE_SHARE;
+#endif
+
+typedef struct st_io_cache /* Used when cacheing files */
+{
+ /* Offset in file corresponding to the first byte of byte* buffer. */
+ my_off_t pos_in_file;
+ /*
+ The offset of end of file for READ_CACHE and WRITE_CACHE.
+ For SEQ_READ_APPEND it the maximum of the actual end of file and
+ the position represented by read_end.
+ */
+ my_off_t end_of_file;
+ /* Points to current read position in the buffer */
+ byte *read_pos;
+ /* the non-inclusive boundary in the buffer for the currently valid read */
+ byte *read_end;
+ byte *buffer; /* The read buffer */
+ /* Used in ASYNC_IO */
+ byte *request_pos;
+
+ /* Only used in WRITE caches and in SEQ_READ_APPEND to buffer writes */
+ byte *write_buffer;
+ /*
+ Only used in SEQ_READ_APPEND, and points to the current read position
+ in the write buffer. Note that reads in SEQ_READ_APPEND caches can
+ happen from both read buffer (byte* buffer) and write buffer
+ (byte* write_buffer).
+ */
+ byte *append_read_pos;
+ /* Points to current write position in the write buffer */
+ byte *write_pos;
+ /* The non-inclusive boundary of the valid write area */
+ byte *write_end;
+
+ /*
+ Current_pos and current_end are convenience variables used by
+ my_b_tell() and other routines that need to know the current offset
+ current_pos points to &write_pos, and current_end to &write_end in a
+ WRITE_CACHE, and &read_pos and &read_end respectively otherwise
+ */
+ byte **current_pos, **current_end;
+#ifdef THREAD
+ /*
+ The lock is for append buffer used in SEQ_READ_APPEND cache
+ need mutex copying from append buffer to read buffer.
+ */
+ pthread_mutex_t append_buffer_lock;
+ /*
+ The following is used when several threads are reading the
+ same file in parallel. They are synchronized on disk
+ accesses reading the cached part of the file asynchronously.
+ It should be set to NULL to disable the feature. Only
+ READ_CACHE mode is supported.
+ */
+ IO_CACHE_SHARE *share;
+#endif
+ /*
+ A caller will use my_b_read() macro to read from the cache
+ if the data is already in cache, it will be simply copied with
+ memcpy() and internal variables will be accordinging updated with
+ no functions invoked. However, if the data is not fully in the cache,
+ my_b_read() will call read_function to fetch the data. read_function
+ must never be invoked directly.
+ */
+ int (*read_function)(struct st_io_cache *,byte *,uint);
+ /*
+ Same idea as in the case of read_function, except my_b_write() needs to
+ be replaced with my_b_append() for a SEQ_READ_APPEND cache
+ */
+ int (*write_function)(struct st_io_cache *,const byte *,uint);
+ /*
+ Specifies the type of the cache. Depending on the type of the cache
+ certain operations might not be available and yield unpredicatable
+ results. Details to be documented later
+ */
+ enum cache_type type;
+ /*
+ Callbacks when the actual read I/O happens. These were added and
+ are currently used for binary logging of LOAD DATA INFILE - when a
+ block is read from the file, we create a block create/append event, and
+ when IO_CACHE is closed, we create an end event. These functions could,
+ of course be used for other things
+ */
+ IO_CACHE_CALLBACK pre_read;
+ IO_CACHE_CALLBACK post_read;
+ IO_CACHE_CALLBACK pre_close;
+ /*
+ Counts the number of times, when we were forced to use disk. We use it to
+ increase the binlog_cache_disk_use status variable.
+ */
+ ulong disk_writes;
+ void* arg; /* for use by pre/post_read */
+ char *file_name; /* if used with 'open_cached_file' */
+ char *dir,*prefix;
+ File file; /* file descriptor */
+ /*
+ seek_not_done is set by my_b_seek() to inform the upcoming read/write
+ operation that a seek needs to be preformed prior to the actual I/O
+ error is 0 if the cache operation was successful, -1 if there was a
+ "hard" error, and the actual number of I/O-ed bytes if the read/write was
+ partial.
+ */
+ int seek_not_done,error;
+ /* buffer_length is memory size allocated for buffer or write_buffer */
+ uint buffer_length;
+ /* read_length is the same as buffer_length except when we use async io */
+ uint read_length;
+ myf myflags; /* Flags used to my_read/my_write */
+ /*
+ alloced_buffer is 1 if the buffer was allocated by init_io_cache() and
+ 0 if it was supplied by the user.
+ Currently READ_NET is the only one that will use a buffer allocated
+ somewhere else
+ */
+ my_bool alloced_buffer;
+#ifdef HAVE_AIOWAIT
+ /*
+ As inidicated by ifdef, this is for async I/O, which is not currently
+ used (because it's not reliable on all systems)
+ */
+ uint inited;
+ my_off_t aio_read_pos;
+ my_aio_result aio_result;
+#endif
+} IO_CACHE;
+
+typedef int (*qsort2_cmp)(const void *, const void *, const void *);
+
+ /* defines for mf_iocache */
+
+ /* Test if buffer is inited */
+#define my_b_clear(info) (info)->buffer=0
+#define my_b_inited(info) (info)->buffer
+#define my_b_EOF INT_MIN
+
+#define my_b_read(info,Buffer,Count) \
+ ((info)->read_pos + (Count) <= (info)->read_end ?\
+ (memcpy(Buffer,(info)->read_pos,(size_t) (Count)), \
+ ((info)->read_pos+=(Count)),0) :\
+ (*(info)->read_function)((info),Buffer,Count))
+
+#define my_b_write(info,Buffer,Count) \
+ ((info)->write_pos + (Count) <=(info)->write_end ?\
+ (memcpy((info)->write_pos, (Buffer), (size_t)(Count)),\
+ ((info)->write_pos+=(Count)),0) : \
+ (*(info)->write_function)((info),(Buffer),(Count)))
+
+#define my_b_get(info) \
+ ((info)->read_pos != (info)->read_end ?\
+ ((info)->read_pos++, (int) (uchar) (info)->read_pos[-1]) :\
+ _my_b_get(info))
+
+ /* my_b_write_byte dosn't have any err-check */
+#define my_b_write_byte(info,chr) \
+ (((info)->write_pos < (info)->write_end) ?\
+ ((*(info)->write_pos++)=(chr)) :\
+ (_my_b_write(info,0,0) , ((*(info)->write_pos++)=(chr))))
+
+#define my_b_fill_cache(info) \
+ (((info)->read_end=(info)->read_pos),(*(info)->read_function)(info,0,0))
+
+#define my_b_tell(info) ((info)->pos_in_file + \
+ (uint) (*(info)->current_pos - (info)->request_pos))
+
+/* tell write offset in the SEQ_APPEND cache */
+my_off_t my_b_append_tell(IO_CACHE* info);
+my_off_t my_b_safe_tell(IO_CACHE* info); /* picks the correct tell() */
+
+#define my_b_bytes_in_cache(info) (uint) (*(info)->current_end - \
+ *(info)->current_pos)
+
+typedef uint32 ha_checksum;
+
+/* Define the type of function to be passed to process_default_option_files */
+typedef int (*Process_option_func)(void *ctx, const char *group_name,
+ const char *option);
+
+#include <my_alloc.h>
+
+ /* Prototypes for mysys and my_func functions */
+
+extern int my_copy(const char *from,const char *to,myf MyFlags);
+extern int my_append(const char *from,const char *to,myf MyFlags);
+extern int my_delete(const char *name,myf MyFlags);
+extern int my_getwd(my_string buf,uint size,myf MyFlags);
+extern int my_setwd(const char *dir,myf MyFlags);
+extern int my_lock(File fd,int op,my_off_t start, my_off_t length,myf MyFlags);
+extern gptr my_once_alloc(uint Size,myf MyFlags);
+extern void my_once_free(void);
+extern char *my_once_strdup(const char *src,myf myflags);
+extern char *my_once_memdup(const char *src, uint len, myf myflags);
+extern File my_open(const char *FileName,int Flags,myf MyFlags);
+extern File my_register_filename(File fd, const char *FileName,
+ enum file_type type_of_file,
+ uint error_message_number, myf MyFlags);
+extern File my_create(const char *FileName,int CreateFlags,
+ int AccsesFlags, myf MyFlags);
+extern int my_close(File Filedes,myf MyFlags);
+extern File my_dup(File file, myf MyFlags);
+extern int my_mkdir(const char *dir, int Flags, myf MyFlags);
+extern int my_readlink(char *to, const char *filename, myf MyFlags);
+extern int my_realpath(char *to, const char *filename, myf MyFlags);
+extern File my_create_with_symlink(const char *linkname, const char *filename,
+ int createflags, int access_flags,
+ myf MyFlags);
+extern int my_delete_with_symlink(const char *name, myf MyFlags);
+extern int my_rename_with_symlink(const char *from,const char *to,myf MyFlags);
+extern int my_symlink(const char *content, const char *linkname, myf MyFlags);
+extern uint my_read(File Filedes,byte *Buffer,uint Count,myf MyFlags);
+extern uint my_pread(File Filedes,byte *Buffer,uint Count,my_off_t offset,
+ myf MyFlags);
+extern int my_rename(const char *from,const char *to,myf MyFlags);
+extern my_off_t my_seek(File fd,my_off_t pos,int whence,myf MyFlags);
+extern my_off_t my_tell(File fd,myf MyFlags);
+extern uint my_write(File Filedes,const byte *Buffer,uint Count,
+ myf MyFlags);
+extern uint my_pwrite(File Filedes,const byte *Buffer,uint Count,
+ my_off_t offset,myf MyFlags);
+extern uint my_fread(FILE *stream,byte *Buffer,uint Count,myf MyFlags);
+extern uint my_fwrite(FILE *stream,const byte *Buffer,uint Count,
+ myf MyFlags);
+extern my_off_t my_fseek(FILE *stream,my_off_t pos,int whence,myf MyFlags);
+extern my_off_t my_ftell(FILE *stream,myf MyFlags);
+extern gptr _mymalloc(uint uSize,const char *sFile,
+ uint uLine, myf MyFlag);
+extern gptr _myrealloc(gptr pPtr,uint uSize,const char *sFile,
+ uint uLine, myf MyFlag);
+extern gptr my_multi_malloc _VARARGS((myf MyFlags, ...));
+extern void _myfree(gptr pPtr,const char *sFile,uint uLine, myf MyFlag);
+extern int _sanity(const char *sFile,unsigned int uLine);
+extern gptr _my_memdup(const byte *from,uint length,
+ const char *sFile, uint uLine,myf MyFlag);
+extern my_string _my_strdup(const char *from, const char *sFile, uint uLine,
+ myf MyFlag);
+extern char *_my_strdup_with_length(const byte *from, uint length,
+ const char *sFile, uint uLine,
+ myf MyFlag);
+
+#ifdef __WIN__
+extern int my_access(const char *path, int amode);
+extern File my_sopen(const char *path, int oflag, int shflag, int pmode);
+#else
+#define my_access access
+#endif
+extern int check_if_legal_filename(const char *path);
+
+#ifndef TERMINATE
+extern void TERMINATE(FILE *file);
+#endif
+extern void init_glob_errs(void);
+extern FILE *my_fopen(const char *FileName,int Flags,myf MyFlags);
+extern FILE *my_fdopen(File Filedes,const char *name, int Flags,myf MyFlags);
+extern int my_fclose(FILE *fd,myf MyFlags);
+extern int my_chsize(File fd,my_off_t newlength, int filler, myf MyFlags);
+extern int my_sync(File fd, myf my_flags);
+extern int my_error _VARARGS((int nr,myf MyFlags, ...));
+extern int my_printf_error _VARARGS((uint my_err, const char *format,
+ myf MyFlags, ...)
+ __attribute__ ((format (printf, 2, 4))));
+extern int my_error_register(const char **errmsgs, int first, int last);
+extern const char **my_error_unregister(int first, int last);
+extern int my_message(uint my_err, const char *str,myf MyFlags);
+extern int my_message_no_curses(uint my_err, const char *str,myf MyFlags);
+extern int my_message_curses(uint my_err, const char *str,myf MyFlags);
+extern my_bool my_init(void);
+extern void my_end(int infoflag);
+extern int my_redel(const char *from, const char *to, int MyFlags);
+extern int my_copystat(const char *from, const char *to, int MyFlags);
+extern my_string my_filename(File fd);
+
+#ifndef THREAD
+extern void dont_break(void);
+extern void allow_break(void);
+#else
+#define dont_break()
+#define allow_break()
+#endif
+
+extern my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist);
+extern char *my_tmpdir(MY_TMPDIR *tmpdir);
+extern void free_tmpdir(MY_TMPDIR *tmpdir);
+
+extern void my_remember_signal(int signal_number,sig_handler (*func)(int));
+extern uint dirname_part(my_string to,const char *name);
+extern uint dirname_length(const char *name);
+#define base_name(A) (A+dirname_length(A))
+extern int test_if_hard_path(const char *dir_name);
+extern my_bool has_path(const char *name);
+extern char *convert_dirname(char *to, const char *from, const char *from_end);
+extern void to_unix_path(my_string name);
+extern my_string fn_ext(const char *name);
+extern my_string fn_same(my_string toname,const char *name,int flag);
+extern my_string fn_format(my_string to,const char *name,const char *dir,
+ const char *form, uint flag);
+extern size_s strlength(const char *str);
+extern void pack_dirname(my_string to,const char *from);
+extern uint unpack_dirname(my_string to,const char *from);
+extern uint cleanup_dirname(my_string to,const char *from);
+extern uint system_filename(my_string to,const char *from);
+extern uint unpack_filename(my_string to,const char *from);
+extern my_string intern_filename(my_string to,const char *from);
+extern my_string directory_file_name(my_string dst, const char *src);
+extern int pack_filename(my_string to, const char *name, size_s max_length);
+extern my_string my_path(my_string to,const char *progname,
+ const char *own_pathname_part);
+extern my_string my_load_path(my_string to, const char *path,
+ const char *own_path_prefix);
+extern int wild_compare(const char *str,const char *wildstr,pbool str_is_pattern);
+extern WF_PACK *wf_comp(my_string str);
+extern int wf_test(struct wild_file_pack *wf_pack,const char *name);
+extern void wf_end(struct wild_file_pack *buffer);
+extern size_s strip_sp(my_string str);
+extern void get_date(my_string to,int timeflag,time_t use_time);
+extern void soundex(CHARSET_INFO *, my_string out_pntr, my_string in_pntr,pbool remove_garbage);
+extern int init_record_cache(RECORD_CACHE *info,uint cachesize,File file,
+ uint reclength,enum cache_type type,
+ pbool use_async_io);
+extern int read_cache_record(RECORD_CACHE *info,byte *to);
+extern int end_record_cache(RECORD_CACHE *info);
+extern int write_cache_record(RECORD_CACHE *info,my_off_t filepos,
+ const byte *record,uint length);
+extern int flush_write_cache(RECORD_CACHE *info);
+extern long my_clock(void);
+extern sig_handler sigtstp_handler(int signal_number);
+extern void handle_recived_signals(void);
+
+extern sig_handler my_set_alarm_variable(int signo);
+extern void my_string_ptr_sort(void *base,uint items,size_s size);
+extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements,
+ size_s size_of_element,uchar *buffer[]);
+extern qsort_t qsort2(void *base_ptr, size_t total_elems, size_t size,
+ qsort2_cmp cmp, void *cmp_argument);
+extern qsort2_cmp get_ptr_compare(uint);
+void my_store_ptr(byte *buff, uint pack_length, my_off_t pos);
+my_off_t my_get_ptr(byte *ptr, uint pack_length);
+extern int init_io_cache(IO_CACHE *info,File file,uint cachesize,
+ enum cache_type type,my_off_t seek_offset,
+ pbool use_async_io, myf cache_myflags);
+extern my_bool reinit_io_cache(IO_CACHE *info,enum cache_type type,
+ my_off_t seek_offset,pbool use_async_io,
+ pbool clear_cache);
+extern void setup_io_cache(IO_CACHE* info);
+extern int _my_b_read(IO_CACHE *info,byte *Buffer,uint Count);
+#ifdef THREAD
+extern int _my_b_read_r(IO_CACHE *info,byte *Buffer,uint Count);
+extern void init_io_cache_share(IO_CACHE *info,
+ IO_CACHE_SHARE *s, uint num_threads);
+extern void remove_io_thread(IO_CACHE *info);
+#endif
+extern int _my_b_seq_read(IO_CACHE *info,byte *Buffer,uint Count);
+extern int _my_b_net_read(IO_CACHE *info,byte *Buffer,uint Count);
+extern int _my_b_get(IO_CACHE *info);
+extern int _my_b_async_read(IO_CACHE *info,byte *Buffer,uint Count);
+extern int _my_b_write(IO_CACHE *info,const byte *Buffer,uint Count);
+extern int my_b_append(IO_CACHE *info,const byte *Buffer,uint Count);
+extern int my_b_safe_write(IO_CACHE *info,const byte *Buffer,uint Count);
+
+extern int my_block_write(IO_CACHE *info, const byte *Buffer,
+ uint Count, my_off_t pos);
+extern int my_b_flush_io_cache(IO_CACHE *info, int need_append_buffer_lock);
+
+#define flush_io_cache(info) my_b_flush_io_cache((info),1)
+
+extern int end_io_cache(IO_CACHE *info);
+extern uint my_b_fill(IO_CACHE *info);
+extern void my_b_seek(IO_CACHE *info,my_off_t pos);
+extern uint my_b_gets(IO_CACHE *info, char *to, uint max_length);
+extern my_off_t my_b_filelength(IO_CACHE *info);
+extern uint my_b_printf(IO_CACHE *info, const char* fmt, ...);
+extern uint my_b_vprintf(IO_CACHE *info, const char* fmt, va_list ap);
+extern my_bool open_cached_file(IO_CACHE *cache,const char *dir,
+ const char *prefix, uint cache_size,
+ myf cache_myflags);
+extern my_bool real_open_cached_file(IO_CACHE *cache);
+extern void close_cached_file(IO_CACHE *cache);
+File create_temp_file(char *to, const char *dir, const char *pfx,
+ int mode, myf MyFlags);
+#define my_init_dynamic_array(A,B,C,D) init_dynamic_array(A,B,C,D CALLER_INFO)
+#define my_init_dynamic_array_ci(A,B,C,D) init_dynamic_array(A,B,C,D ORIG_CALLER_INFO)
+extern my_bool init_dynamic_array(DYNAMIC_ARRAY *array,uint element_size,
+ uint init_alloc,uint alloc_increment
+ CALLER_INFO_PROTO);
+extern my_bool insert_dynamic(DYNAMIC_ARRAY *array,gptr element);
+extern byte *alloc_dynamic(DYNAMIC_ARRAY *array);
+extern byte *pop_dynamic(DYNAMIC_ARRAY*);
+extern my_bool set_dynamic(DYNAMIC_ARRAY *array,gptr element,uint array_index);
+extern void get_dynamic(DYNAMIC_ARRAY *array,gptr element,uint array_index);
+extern void delete_dynamic(DYNAMIC_ARRAY *array);
+extern void delete_dynamic_element(DYNAMIC_ARRAY *array, uint array_index);
+extern void freeze_size(DYNAMIC_ARRAY *array);
+#define dynamic_array_ptr(array,array_index) ((array)->buffer+(array_index)*(array)->size_of_element)
+#define dynamic_element(array,array_index,type) ((type)((array)->buffer) +(array_index))
+#define push_dynamic(A,B) insert_dynamic(A,B)
+#define reset_dynamic(array) ((array)->elements= 0)
+
+extern my_bool init_dynamic_string(DYNAMIC_STRING *str, const char *init_str,
+ uint init_alloc,uint alloc_increment);
+extern my_bool dynstr_append(DYNAMIC_STRING *str, const char *append);
+my_bool dynstr_append_mem(DYNAMIC_STRING *str, const char *append,
+ uint length);
+extern my_bool dynstr_set(DYNAMIC_STRING *str, const char *init_str);
+extern my_bool dynstr_realloc(DYNAMIC_STRING *str, ulong additional_size);
+extern void dynstr_free(DYNAMIC_STRING *str);
+#ifdef HAVE_MLOCK
+extern byte *my_malloc_lock(uint length,myf flags);
+extern void my_free_lock(byte *ptr,myf flags);
+#else
+#define my_malloc_lock(A,B) my_malloc((A),(B))
+#define my_free_lock(A,B) my_free((A),(B))
+#endif
+#define alloc_root_inited(A) ((A)->min_malloc != 0)
+#define ALLOC_ROOT_MIN_BLOCK_SIZE (MALLOC_OVERHEAD + sizeof(USED_MEM) + 8)
+#define clear_alloc_root(A) do { (A)->free= (A)->used= (A)->pre_alloc= 0; (A)->min_malloc=0;} while(0)
+extern void init_alloc_root(MEM_ROOT *mem_root, uint block_size,
+ uint pre_alloc_size);
+extern gptr alloc_root(MEM_ROOT *mem_root,unsigned int Size);
+extern gptr multi_alloc_root(MEM_ROOT *mem_root, ...);
+extern void free_root(MEM_ROOT *root, myf MyFLAGS);
+extern void set_prealloc_root(MEM_ROOT *root, char *ptr);
+extern void reset_root_defaults(MEM_ROOT *mem_root, uint block_size,
+ uint prealloc_size);
+extern char *strdup_root(MEM_ROOT *root,const char *str);
+extern char *strmake_root(MEM_ROOT *root,const char *str,uint len);
+extern char *memdup_root(MEM_ROOT *root,const char *str,uint len);
+extern int get_defaults_options(int argc, char **argv,
+ char **defaults, char **extra_defaults,
+ char **group_suffix);
+extern int load_defaults(const char *conf_file, const char **groups,
+ int *argc, char ***argv);
+extern int modify_defaults_file(const char *file_location, const char *option,
+ const char *option_value,
+ const char *section_name, int remove_option);
+extern int my_search_option_files(const char *conf_file, int *argc,
+ char ***argv, uint *args_used,
+ Process_option_func func, void *func_ctx);
+extern void free_defaults(char **argv);
+extern void my_print_default_files(const char *conf_file);
+extern void print_defaults(const char *conf_file, const char **groups);
+extern my_bool my_compress(byte *, ulong *, ulong *);
+extern my_bool my_uncompress(byte *, ulong *, ulong *);
+extern byte *my_compress_alloc(const byte *packet, ulong *len, ulong *complen);
+extern ha_checksum my_checksum(ha_checksum crc, const byte *mem, uint count);
+extern uint my_bit_log2(ulong value);
+extern uint my_count_bits(ulonglong v);
+extern uint my_count_bits_ushort(ushort v);
+extern void my_sleep(ulong m_seconds);
+extern ulong crc32(ulong crc, const uchar *buf, uint len);
+extern uint my_set_max_open_files(uint files);
+void my_free_open_file_info(void);
+
+ulonglong my_getsystime(void);
+my_bool my_gethwaddr(uchar *to);
+
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+
+#ifndef MAP_NOSYNC
+#define MAP_NOSYNC 0
+#endif
+
+#define my_mmap(a,b,c,d,e,f) mmap(a,b,c,d,e,f)
+#ifdef HAVE_GETPAGESIZE
+#define my_getpagesize() getpagesize()
+#else
+/* qnx ? */
+#define my_getpagesize() 8192
+#endif
+#define my_munmap(a,b) munmap((a),(b))
+
+#else
+/* not a complete set of mmap() flags, but only those that nesessary */
+#define PROT_READ 1
+#define PROT_WRITE 2
+#define MAP_SHARED 0x0001
+#define MAP_NOSYNC 0x0800
+#define MAP_FAILED ((void *)-1)
+#define MS_SYNC 0x0000
+
+#ifndef __NETWARE__
+#define HAVE_MMAP
+#endif
+
+int my_getpagesize(void);
+void *my_mmap(void *, size_t, int, int, int, my_off_t);
+int my_munmap(void *, size_t);
+#endif
+
+int my_msync(int, void *, size_t, int);
+
+/* character sets */
+extern uint get_charset_number(const char *cs_name, uint cs_flags);
+extern uint get_collation_number(const char *name);
+extern const char *get_charset_name(uint cs_number);
+
+extern CHARSET_INFO *get_charset(uint cs_number, myf flags);
+extern CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags);
+extern CHARSET_INFO *get_charset_by_csname(const char *cs_name,
+ uint cs_flags, myf my_flags);
+extern void free_charsets(void);
+extern char *get_charsets_dir(char *buf);
+extern my_bool my_charset_same(CHARSET_INFO *cs1, CHARSET_INFO *cs2);
+extern my_bool init_compiled_charsets(myf flags);
+extern void add_compiled_collation(CHARSET_INFO *cs);
+extern ulong escape_string_for_mysql(CHARSET_INFO *charset_info,
+ char *to, ulong to_length,
+ const char *from, ulong length);
+#ifdef __WIN__
+#define BACKSLASH_MBTAIL
+/* File system character set */
+extern CHARSET_INFO *fs_character_set(void);
+#endif
+extern ulong escape_quotes_for_mysql(CHARSET_INFO *charset_info,
+ char *to, ulong to_length,
+ const char *from, ulong length);
+
+extern void thd_increment_bytes_sent(ulong length);
+extern void thd_increment_bytes_received(ulong length);
+extern void thd_increment_net_big_packet_count(ulong length);
+
+#ifdef __WIN__
+extern my_bool have_tcpip; /* Is set if tcpip is used */
+
+/* implemented in my_windac.c */
+
+int my_security_attr_create(SECURITY_ATTRIBUTES **psa, const char **perror,
+ DWORD owner_rights, DWORD everybody_rights);
+
+void my_security_attr_free(SECURITY_ATTRIBUTES *sa);
+
+/* implemented in my_conio.c */
+char* my_cgets(char *string, unsigned long clen, unsigned long* plen);
+
+#endif
+#ifdef __NETWARE__
+void netware_reg_user(const char *ip, const char *user,
+ const char *application);
+#endif
+
+C_MODE_END
+#include "raid.h"
+#endif /* _my_sys_h */
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