my_sys.h
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上传日期:2007-01-02
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文件大小:17k
- /* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
- This file is public domain and comes with NO WARRANTY of any kind */
- #ifndef _my_sys_h
- #define _my_sys_h
- #ifdef __cplusplus
- extern "C" {
- #endif
- #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
- #ifdef THREAD
- extern int *_my_errno(void) __attribute__ ((const));
- #define my_errno (*_my_errno())
- #else
- extern int NEAR my_errno; /* Last error in mysys */
- #endif
- #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_LINK_WARNING 32 /* my_redel() gives warning if links */
- #define MY_COPYTIME 64 /* my_redel() copys time */
- #define MY_HOLD_ORIGINAL_MODES 128 /* my_copy() holds to file modes */
- #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_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))
- /* 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 */
- /* defines when allocating data */
- #ifdef SAFEMALLOC
- #define my_malloc(SZ,FLAG) _mymalloc( SZ, __FILE__, __LINE__, 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 QUICK_SAFEMALLOC sf_malloc_quick=1
- #define NORMAL_SAFEMALLOC sf_malloc_quick=0
- extern uint sf_malloc_prehunc,sf_malloc_endhunc,sf_malloc_quick;
- #else
- #define my_checkmalloc() (0)
- #define TERMINATE(A) {}
- #define QUICK_SAFEMALLOC
- #define NORMAL_SAFEMALLOC
- extern gptr my_malloc(uint Size,myf MyFlags);
- 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 string my_strdup(const char *from,myf MyFlags);
- #define my_free(PTR,FG) my_no_flags_free(PTR)
- #endif
- #ifdef HAVE_ALLOCA
- #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 */
- #ifdef HAVE_ERRNO_AS_DEFINE
- #include <errno.h> /* errno is a define */
- #else
- extern int errno; /* declare errno */
- #endif
- extern char ** NEAR 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_error, const char *str,myf MyFlags);
- extern int (*fatal_error_handler_hook)(uint my_error, const char *str,
- myf MyFlags);
- /* 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_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 */
- NEAR mysys_uses_curses;
- extern long lCurMemory,lMaxMemory; /* from safemalloc */
- extern ulong my_default_record_cache_size;
- extern int NEAR my_disable_locking,NEAR my_disable_async_io;
- extern char wild_many,wild_one,wild_prefix;
- 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 */
- string *wild; /* Pointer to wildcards */
- } WF_PACK;
- typedef struct st_typelib { /* Different types saved here */
- uint count; /* How many types */
- string name; /* Name of typelib */
- string *type_names;
- } TYPELIB;
- enum cache_type {READ_CACHE,WRITE_CACHE};
- 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 };
- extern struct my_file_info
- {
- string name;
- enum file_type type;
- } my_file_info[MY_NFILE];
- 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;
- typedef struct st_io_cache /* Used when cacheing files */
- {
- byte *rc_pos,*rc_end,*buffer,*rc_request_pos;
- File file;
- int seek_not_done,error;
- uint buffer_length,read_length;
- my_off_t pos_in_file,end_of_file;
- myf myflags; /* Flags used to my_read/my_write */
- #ifdef HAVE_AIOWAIT
- uint inited;
- my_off_t aio_read_pos;
- my_aio_result aio_result;
- #endif
- enum cache_type type;
- int (*read_function)(struct st_io_cache *,byte *,uint);
- char *file_name; /* if used with 'open_cacheed_file' */
- } IO_CACHE;
- /* 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)->rc_pos + (Count) <= (info)->rc_end ?
- (memcpy(Buffer,(info)->rc_pos,(size_t) (Count)),
- ((info)->rc_pos+=(Count)),0) :
- (*(info)->read_function)((info),Buffer,Count))
- #define my_b_get(info)
- ((info)->rc_pos != (info)->rc_end ?
- ((info)->rc_pos++, (int) (info)->rc_pos[-1]) :
- _my_b_get(info))
- #define my_b_write(info,Buffer,Count)
- ((info)->rc_pos + (Count) <= (info)->rc_end ?
- (memcpy((info)->rc_pos,Buffer,(size_t) (Count)),
- ((info)->rc_pos+=(Count)),0) :
- _my_b_write(info,Buffer,Count))
- /* my_b_write_byte dosn't have any err-check */
- #define my_b_write_byte(info,chr)
- (((info)->rc_pos < (info)->rc_end) ?
- ((*(info)->rc_pos++)=(chr)) :
- (_my_b_write(info,0,0) , ((*(info)->rc_pos++)=(chr))))
- #define my_b_fill_cache(info)
- (((info)->rc_end=(info)->rc_pos),(*(info)->read_function)(info,0,0))
- #define my_b_tell(info) ((info)->pos_in_file +
- ((info)->rc_pos - (info)->rc_request_pos))
- typedef struct st_changeable_var {
- const char *name;
- long *varptr;
- long def_value,min_value,max_value,sub_size,block_size;
- } CHANGEABLE_VAR;
- /* 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(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 string my_tempnam(const char *dir,const char *pfx,myf MyFlags);
- extern File my_open(const char *FileName,int Flags,myf MyFlags);
- extern File my_create(const char *FileName,int CreateFlags,
- int AccsesFlags, myf MyFlags);
- extern int my_close(File Filedes,myf MyFlags);
- extern int my_mkdir(const char *dir, int Flags, 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(string 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 string _my_strdup(const char *from, const char *sFile, uint uLine,
- myf MyFlag);
- #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,int Flags,myf MyFlags);
- extern int my_fclose(FILE *fd,myf MyFlags);
- extern int my_chsize(File fd,my_off_t newlength,myf MyFlags);
- extern int my_error _VARARGS((int nr,myf MyFlags, ...));
- extern int my_printf_error _VARARGS((uint my_error, const string format,
- myf MyFlags, ...));
- extern int my_message(uint my_error, const char *str,myf MyFlags);
- extern int my_message_no_curses(uint my_error, const char *str,myf MyFlags);
- extern int my_message_curses(uint my_error, const char *str,myf MyFlags);
- extern void 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 string my_filename(File fd);
- extern void dont_break(void);
- extern void allow_break(void);
- extern void my_remember_signal(int signal_number,sig_handler (*func)(int));
- extern void caseup(string str,uint length);
- extern void casedn(string str,uint length);
- extern void caseup_str(string str);
- extern void casedn_str(string str);
- extern void case_sort(string str,uint length);
- extern uint dirname_part(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 void convert_dirname(string name);
- extern void to_unix_path(string name);
- extern string fn_ext(const char *name);
- extern string fn_same(string toname,const char *name,int flag);
- extern string fn_format(string to,const char *name,const char *dsk,
- const char *form,int flag);
- extern size_s strlength(const char *str);
- extern void pack_dirname(string to,const char *from);
- extern uint unpack_dirname(string to,const char *from);
- extern uint cleanup_dirname(string to,const char *from);
- extern uint system_filename(string to,const char *from);
- extern string unpack_filename(string to,const char *from);
- extern string intern_filename(string to,const char *from);
- extern string directory_file_name(string dst, string src);
- extern int pack_filename(string to, string name, size_s max_length);
- extern string my_path(string to,const char *progname,
- const char *own_pathname_part);
- extern string my_load_path(string to, const char *path,
- const char *own_path_prefix);
- extern int wild_compare(const char *str,const char *wildstr);
- extern string strcasestr(const char *src,const char *suffix);
- extern int my_strcasecmp(const char *s,const char *t);
- extern int my_strsortcmp(const char *s,const char *t);
- extern int my_casecmp(const char *s,const char *t,uint length);
- extern int my_sortcmp(const char *s,const char *t,uint length);
- extern WF_PACK *wf_comp(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 stripp_sp(string str);
- extern void get_date(string to,int timeflag,time_t use_time);
- extern void soundex(string out_pntr, 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 int init_key_cache(ulong use_mem,ulong leave_this_much_mem);
- extern byte *key_cache_read(File file,my_off_t filepos,byte* buff,uint length,
- uint block_length,int return_buffer);
- extern int key_cache_write(File file,my_off_t filepos,byte* buff,uint length,
- uint block_length,int force_write);
- extern int flush_key_blocks(int file,pbool free_used_blocks);
- extern void end_key_cache(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 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 void reinit_io_cache(IO_CACHE *info,enum cache_type type,
- my_off_t seek_offset,pbool use_async_io);
- extern int _my_b_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 flush_io_cache(IO_CACHE *info);
- extern int end_io_cache(IO_CACHE *info);
- extern int open_cacheed_file(IO_CACHE *cache,const char *prefix,
- uint cache_size);
- extern void close_cacheed_file(IO_CACHE *cache);
- extern my_bool init_dynamic_array(DYNAMIC_ARRAY *array,uint element_size,
- uint init_alloc,uint alloc_increment);
- 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 index);
- extern void get_dynamic(DYNAMIC_ARRAY *array,gptr element,uint index);
- extern void delete_dynamic(DYNAMIC_ARRAY *array);
- extern void freeze_size(DYNAMIC_ARRAY *array);
- #define dynamic_array_ptr(array,index) ((array)->buffer+(index)*(array)->size_of_element)
- #define dynamic_element(array,index,type) ((type)((array)->buffer) +(index))
- #define push_dynamic(A,B) insert_dynamic(A,B)
- extern int find_type(string x,TYPELIB *typelib,int full_name);
- extern void make_type(string to,uint nr,TYPELIB *typelib);
- extern string get_type(TYPELIB *typelib,uint nr);
- extern my_bool init_dynamic_string(DYNAMIC_STRING *str,string init_str,
- uint init_alloc,uint alloc_increment);
- extern my_bool dynstr_append(DYNAMIC_STRING *str,string append);
- extern void dynstr_free(DYNAMIC_STRING *str);
- void set_all_changeable_vars(CHANGEABLE_VAR *vars);
- my_bool set_changeable_var(string str,CHANGEABLE_VAR *vars);
- #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
- #if defined(_MSC_VER) && !defined(__WIN32__)
- extern void sleep(int sec);
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif /* _my_sys_h */