source: trunk/tools/database/mysql/my_sys.h

Last change on this file was 7882, checked in by bird, 24 years ago

Updated to 3.23.42-rel.
File size: 24.4 KB
Line 
1/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
2
3 This library is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Library General Public
5 License as published by the Free Software Foundation; either
6 version 2 of the License, or (at your option) any later version.
7
8 This library is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 Library General Public License for more details.
12
13 You should have received a copy of the GNU Library General Public
14 License along with this library; if not, write to the Free
15 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
16 MA 02111-1307, USA */
17
18#ifndef _my_sys_h
19#define _my_sys_h
20#ifdef __cplusplus
21extern "C" {
22#endif
23
24#ifdef HAVE_AIOWAIT
25#include <sys/asynch.h> /* Used by record-cache */
26typedef struct my_aio_result {
27 aio_result_t result;
28 int pending;
29} my_aio_result;
30#endif
31
32#ifndef THREAD
33extern int NEAR my_errno; /* Last error in mysys */
34#else
35#include <my_pthread.h>
36#endif
37
38#ifndef _m_ctype_h
39#include <m_ctype.h> /* for CHARSET_INFO */
40#endif
41
42#include <stdarg.h>
43
44#define MYSYS_PROGRAM_USES_CURSES() { error_handler_hook = my_message_curses; mysys_uses_curses=1; }
45#define MYSYS_PROGRAM_DONT_USE_CURSES() { error_handler_hook = my_message_no_curses; mysys_uses_curses=0;}
46#define MY_INIT(name); { my_progname= name; my_init(); }
47
48#define MAXMAPS (4) /* Number of error message maps */
49#define ERRMOD (1000) /* Max number of errors in a map */
50#define ERRMSGSIZE (SC_MAXWIDTH) /* Max length of a error message */
51#define NRERRBUFFS (2) /* Buffers for parameters */
52#define MY_FILE_ERROR ((uint) ~0)
53
54 /* General bitmaps for my_func's */
55#define MY_FFNF 1 /* Fatal if file not found */
56#define MY_FNABP 2 /* Fatal if not all bytes read/writen */
57#define MY_NABP 4 /* Error if not all bytes read/writen */
58#define MY_FAE 8 /* Fatal if any error */
59#define MY_WME 16 /* Write message on error */
60#define MY_WAIT_IF_FULL 32 /* Wait and try again if disk full error */
61#define MY_RAID 64 /* Support for RAID (not the "Johnson&Johnson"-s one ;) */
62#define MY_DONT_CHECK_FILESIZE 128 /* Option to init_io_cache() */
63#define MY_LINK_WARNING 32 /* my_redel() gives warning if links */
64#define MY_COPYTIME 64 /* my_redel() copys time */
65#define MY_DELETE_OLD 256 /* my_create_with_symlink() */
66#define MY_RESOLVE_LINK 128 /* my_realpath(); Only resolve links */
67#define MY_HOLD_ORIGINAL_MODES 128 /* my_copy() holds to file modes */
68#define MY_REDEL_MAKE_BACKUP 256
69#define MY_SEEK_NOT_DONE 32 /* my_lock may have to do a seek */
70#define MY_DONT_WAIT 64 /* my_lock() don't wait if can't lock */
71#define MY_ZEROFILL 32 /* my_malloc(), fill array with zero */
72#define MY_ALLOW_ZERO_PTR 64 /* my_realloc() ; zero ptr -> malloc */
73#define MY_FREE_ON_ERROR 128 /* my_realloc() ; Free old ptr on error */
74#define MY_HOLD_ON_ERROR 256 /* my_realloc() ; Return old ptr on error */
75#define MY_THREADSAFE 128 /* pread/pwrite: Don't allow interrupts */
76
77#define MY_CHECK_ERROR 1 /* Params to my_end; Check open-close */
78#define MY_GIVE_INFO 2 /* Give time info about process*/
79
80#define ME_HIGHBYTE 8 /* Shift for colours */
81#define ME_NOCUR 1 /* Don't use curses message */
82#define ME_OLDWIN 2 /* Use old window */
83#define ME_BELL 4 /* Ring bell then printing message */
84#define ME_HOLDTANG 8 /* Don't delete last keys */
85#define ME_WAITTOT 16 /* Wait for errtime secs of for a action */
86#define ME_WAITTANG 32 /* Wait for a user action */
87#define ME_NOREFRESH 64 /* Dont refresh screen */
88#define ME_NOINPUT 128 /* Dont use the input libary */
89#define ME_COLOUR1 ((1 << ME_HIGHBYTE)) /* Possibly error-colours */
90#define ME_COLOUR2 ((2 << ME_HIGHBYTE))
91#define ME_COLOUR3 ((3 << ME_HIGHBYTE))
92
93 /* My seek flags */
94#define MY_SEEK_SET 0
95#define MY_SEEK_CUR 1
96#define MY_SEEK_END 2
97
98 /* My charsets_list flags */
99#define MY_NO_SETS 0
100#define MY_COMPILED_SETS 1 /* show compiled-in sets */
101#define MY_CONFIG_SETS 2 /* sets that have a *.conf file */
102#define MY_INDEX_SETS 4 /* all sets listed in the Index file */
103#define MY_LOADED_SETS 8 /* the sets that are currently loaded */
104
105 /* Some constants */
106#define MY_WAIT_FOR_USER_TO_FIX_PANIC 60 /* in seconds */
107#define MY_WAIT_GIVE_USER_A_MESSAGE 10 /* Every 10 times of prev */
108#define MIN_COMPRESS_LENGTH 50 /* Don't compress small bl. */
109#define KEYCACHE_BLOCK_SIZE 1024
110
111 /* root_alloc flags */
112#define MY_KEEP_PREALLOC 1
113
114 /* defines when allocating data */
115
116#ifdef SAFEMALLOC
117#define my_malloc(SZ,FLAG) _mymalloc( SZ, __FILE__, __LINE__, FLAG )
118#define my_realloc(PTR,SZ,FLAG) _myrealloc( PTR, SZ, __FILE__, __LINE__, FLAG )
119#define my_checkmalloc() _sanity( __FILE__, __LINE__ )
120#define my_free(PTR,FLAG) _myfree( PTR, __FILE__, __LINE__,FLAG)
121#define my_memdup(A,B,C) _my_memdup(A,B,__FILE__,__LINE__,C)
122#define my_strdup(A,C) _my_strdup(A,__FILE__,__LINE__,C)
123#define QUICK_SAFEMALLOC sf_malloc_quick=1
124#define NORMAL_SAFEMALLOC sf_malloc_quick=0
125extern uint sf_malloc_prehunc,sf_malloc_endhunc,sf_malloc_quick;
126extern ulonglong safemalloc_mem_limit;
127#else
128#define my_checkmalloc() (0)
129#ifndef OS2
130#define TERMINATE(A) {}
131#endif
132#define QUICK_SAFEMALLOC
133#define NORMAL_SAFEMALLOC
134extern gptr my_malloc(uint Size,myf MyFlags);
135extern gptr my_realloc(gptr oldpoint,uint Size,myf MyFlags);
136extern void my_no_flags_free(gptr ptr);
137extern gptr my_memdup(const byte *from,uint length,myf MyFlags);
138extern my_string my_strdup(const char *from,myf MyFlags);
139#define my_free(PTR,FG) my_no_flags_free(PTR)
140#endif
141#ifdef HAVE_ALLOCA
142#define my_alloca(SZ) alloca((size_t) (SZ))
143#define my_afree(PTR) {}
144#else
145#define my_alloca(SZ) my_malloc(SZ,MYF(0))
146#define my_afree(PTR) my_free(PTR,MYF(MY_WME))
147#endif /* HAVE_ALLOCA */
148#ifdef MSDOS
149#ifdef __ZTC__
150void * __CDECL halloc(long count,size_t length);
151void __CDECL hfree(void *ptr);
152#endif
153#if defined(USE_HALLOC)
154#if defined(_VCM_) || defined(M_IC80386)
155#undef USE_HALLOC
156#endif
157#endif
158#ifdef USE_HALLOC
159#define malloc(a) halloc((long) (a),1)
160#define free(a) hfree(a)
161#endif
162#endif /* MSDOS */
163
164#ifdef HAVE_ERRNO_AS_DEFINE
165#include <errno.h> /* errno is a define */
166#else
167extern int errno; /* declare errno */
168#endif
169extern const char ** NEAR my_errmsg[];
170extern char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE];
171extern char *home_dir; /* Home directory for user */
172extern char *my_progname; /* program-name (printed in errors) */
173extern char NEAR curr_dir[]; /* Current directory for user */
174extern int (*error_handler_hook)(uint my_err, const char *str,myf MyFlags);
175extern int (*fatal_error_handler_hook)(uint my_err, const char *str,
176 myf MyFlags);
177
178/* charsets */
179extern uint get_charset_number(const char *cs_name);
180extern const char *get_charset_name(uint cs_number);
181extern CHARSET_INFO *get_charset(uint cs_number, myf flags);
182extern my_bool set_default_charset(uint cs, myf flags);
183extern CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags);
184extern my_bool set_default_charset_by_name(const char *cs_name, myf flags);
185extern void free_charsets(void);
186extern char *list_charsets(myf want_flags); /* my_free() this string... */
187extern char *get_charsets_dir(char *buf);
188
189
190/* statistics */
191extern ulong _my_cache_w_requests,_my_cache_write,_my_cache_r_requests,
192 _my_cache_read;
193extern ulong _my_blocks_used,_my_blocks_changed;
194extern ulong my_file_opened,my_stream_opened, my_tmp_file_created;
195extern my_bool key_cache_inited;
196
197 /* Point to current my_message() */
198extern void (*my_sigtstp_cleanup)(void),
199 /* Executed before jump to shell */
200 (*my_sigtstp_restart)(void),
201 (*my_abort_hook)(int);
202 /* Executed when comming from shell */
203extern int NEAR my_umask, /* Default creation mask */
204 NEAR my_umask_dir,
205 NEAR my_recived_signals, /* Signals we have got */
206 NEAR my_safe_to_handle_signal, /* Set when allowed to SIGTSTP */
207 NEAR my_dont_interrupt; /* call remember_intr when set */
208extern my_bool NEAR mysys_uses_curses, my_use_symdir;
209extern long lCurMemory,lMaxMemory; /* from safemalloc */
210
211extern ulong my_default_record_cache_size;
212extern my_bool NEAR my_disable_locking,NEAR my_disable_async_io,
213 NEAR my_disable_flush_key_blocks, NEAR my_disable_symlinks;
214extern char wild_many,wild_one,wild_prefix;
215extern const char *charsets_dir;
216extern char *defaults_extra_file;
217
218typedef struct wild_file_pack /* Struct to hold info when selecting files */
219{
220 uint wilds; /* How many wildcards */
221 uint not_pos; /* Start of not-theese-files */
222 my_string *wild; /* Pointer to wildcards */
223} WF_PACK;
224
225typedef struct st_typelib { /* Different types saved here */
226 uint count; /* How many types */
227 const char *name; /* Name of typelib */
228 const char **type_names;
229} TYPELIB;
230
231enum cache_type {READ_CACHE,WRITE_CACHE,READ_FIFO,READ_NET,WRITE_NET};
232enum flush_type { FLUSH_KEEP, FLUSH_RELEASE, FLUSH_IGNORE_CHANGED,
233 FLUSH_FORCE_WRITE};
234
235typedef struct st_record_cache /* Used when cacheing records */
236{
237 File file;
238 int rc_seek,error,inited;
239 uint rc_length,read_length,reclength;
240 my_off_t rc_record_pos,end_of_file;
241 byte *rc_buff,*rc_buff2,*rc_pos,*rc_end,*rc_request_pos;
242#ifdef HAVE_AIOWAIT
243 int use_async_io;
244 my_aio_result aio_result;
245#endif
246 enum cache_type type;
247} RECORD_CACHE;
248
249enum file_type { UNOPEN = 0, FILE_BY_OPEN, FILE_BY_CREATE,
250 STREAM_BY_FOPEN, STREAM_BY_FDOPEN, FILE_BY_MKSTEMP };
251
252extern struct my_file_info
253{
254 my_string name;
255 enum file_type type;
256#if defined(THREAD) && !defined(HAVE_PREAD)
257 pthread_mutex_t mutex;
258#endif
259} my_file_info[MY_NFILE];
260
261
262typedef struct st_dynamic_array {
263 char *buffer;
264 uint elements,max_element;
265 uint alloc_increment;
266 uint size_of_element;
267} DYNAMIC_ARRAY;
268
269typedef struct st_dynamic_string {
270 char *str;
271 uint length,max_length,alloc_increment;
272} DYNAMIC_STRING;
273
274
275typedef struct st_io_cache /* Used when cacheing files */
276{
277 my_off_t pos_in_file,end_of_file;
278 byte *rc_pos,*rc_end,*buffer,*rc_request_pos;
279 int (*read_function)(struct st_io_cache *,byte *,uint);
280 char *file_name; /* if used with 'open_cached_file' */
281 char *dir,*prefix;
282 File file;
283 int seek_not_done,error;
284 uint buffer_length,read_length;
285 myf myflags; /* Flags used to my_read/my_write */
286 enum cache_type type;
287#ifdef HAVE_AIOWAIT
288 uint inited;
289 my_off_t aio_read_pos;
290 my_aio_result aio_result;
291#endif
292} IO_CACHE;
293
294typedef int (*qsort2_cmp)(const void *, const void *, const void *);
295
296 /* defines for mf_iocache */
297
298 /* Test if buffer is inited */
299#define my_b_clear(info) (info)->buffer=0
300#define my_b_inited(info) (info)->buffer
301#define my_b_EOF INT_MIN
302
303#define my_b_read(info,Buffer,Count) \
304 ((info)->rc_pos + (Count) <= (info)->rc_end ?\
305 (memcpy(Buffer,(info)->rc_pos,(size_t) (Count)), \
306 ((info)->rc_pos+=(Count)),0) :\
307 (*(info)->read_function)((info),Buffer,Count))
308
309#define my_b_get(info) \
310 ((info)->rc_pos != (info)->rc_end ?\
311 ((info)->rc_pos++, (int) (uchar) (info)->rc_pos[-1]) :\
312 _my_b_get(info))
313
314#define my_b_write(info,Buffer,Count) \
315 ((info)->rc_pos + (Count) <= (info)->rc_end ?\
316 (memcpy((info)->rc_pos,Buffer,(size_t) (Count)), \
317 ((info)->rc_pos+=(Count)),0) :\
318 _my_b_write(info,Buffer,Count))
319
320 /* my_b_write_byte dosn't have any err-check */
321#define my_b_write_byte(info,chr) \
322 (((info)->rc_pos < (info)->rc_end) ?\
323 ((*(info)->rc_pos++)=(chr)) :\
324 (_my_b_write(info,0,0) , ((*(info)->rc_pos++)=(chr))))
325
326#define my_b_fill_cache(info) \
327 (((info)->rc_end=(info)->rc_pos),(*(info)->read_function)(info,0,0))
328
329#define my_b_tell(info) ((info)->pos_in_file + \
330 ((info)->rc_pos - (info)->rc_request_pos))
331
332#define my_b_bytes_in_cache(info) ((uint) ((info)->rc_end - (info)->rc_pos))
333
334typedef struct st_changeable_var {
335 const char *name; /* Name of variable */
336 long *varptr; /* Pointer to variable */
337 long def_value, /* Default value */
338 min_value, /* Min allowed value */
339 max_value, /* Max allowed value */
340 sub_size, /* Subtract this from given value */
341 block_size; /* Value should be a mult. of this */
342} CHANGEABLE_VAR;
343
344
345/* structs for alloc_root */
346
347#ifndef ST_USED_MEM_DEFINED
348#define ST_USED_MEM_DEFINED
349typedef struct st_used_mem { /* struct for once_alloc */
350 struct st_used_mem *next; /* Next block in use */
351 unsigned int left; /* memory left in block */
352 unsigned int size; /* Size of block */
353} USED_MEM;
354
355typedef struct st_mem_root {
356 USED_MEM *free;
357 USED_MEM *used;
358 USED_MEM *pre_alloc;
359 unsigned int min_malloc;
360 unsigned int block_size;
361
362 void (*error_handler)(void);
363} MEM_ROOT;
364#endif
365
366 /* Prototypes for mysys and my_func functions */
367
368extern int my_copy(const char *from,const char *to,myf MyFlags);
369extern int my_append(const char *from,const char *to,myf MyFlags);
370extern int my_delete(const char *name,myf MyFlags);
371extern int my_getwd(my_string buf,uint size,myf MyFlags);
372extern int my_setwd(const char *dir,myf MyFlags);
373extern int my_lock(File fd,int op,my_off_t start, my_off_t length,myf MyFlags);
374extern gptr my_once_alloc(uint Size,myf MyFlags);
375extern void my_once_free(void);
376extern my_string my_tempnam(const char *dir,const char *pfx,myf MyFlags);
377extern File my_open(const char *FileName,int Flags,myf MyFlags);
378extern File my_register_filename(File fd, const char *FileName,
379 enum file_type type_of_file,
380 uint error_message_number, myf MyFlags);
381extern File my_create(const char *FileName,int CreateFlags,
382 int AccsesFlags, myf MyFlags);
383extern int my_close(File Filedes,myf MyFlags);
384extern int my_mkdir(const char *dir, int Flags, myf MyFlags);
385extern int my_readlink(char *to, const char *filename, myf MyFlags);
386extern int my_realpath(char *to, const char *filename, myf MyFlags);
387extern File my_create_with_symlink(const char *linkname, const char *filename,
388 int createflags, int access_flags,
389 myf MyFlags);
390extern int my_delete_with_symlink(const char *name, myf MyFlags);
391extern int my_rename_with_symlink(const char *from,const char *to,myf MyFlags);
392extern int my_symlink(const char *content, const char *linkname, myf MyFlags);
393extern uint my_read(File Filedes,byte *Buffer,uint Count,myf MyFlags);
394extern uint my_pread(File Filedes,byte *Buffer,uint Count,my_off_t offset,
395 myf MyFlags);
396extern int my_rename(const char *from,const char *to,myf MyFlags);
397extern my_off_t my_seek(File fd,my_off_t pos,int whence,myf MyFlags);
398extern my_off_t my_tell(File fd,myf MyFlags);
399extern uint my_write(File Filedes,const byte *Buffer,uint Count,
400 myf MyFlags);
401extern uint my_pwrite(File Filedes,const byte *Buffer,uint Count,
402 my_off_t offset,myf MyFlags);
403extern uint my_fread(FILE *stream,byte *Buffer,uint Count,myf MyFlags);
404extern uint my_fwrite(FILE *stream,const byte *Buffer,uint Count,
405 myf MyFlags);
406extern my_off_t my_fseek(FILE *stream,my_off_t pos,int whence,myf MyFlags);
407extern my_off_t my_ftell(FILE *stream,myf MyFlags);
408extern gptr _mymalloc(uint uSize,const char *sFile,
409 uint uLine, myf MyFlag);
410extern gptr _myrealloc(gptr pPtr,uint uSize,const char *sFile,
411 uint uLine, myf MyFlag);
412extern gptr my_multi_malloc _VARARGS((myf MyFlags, ...));
413extern void _myfree(gptr pPtr,const char *sFile,uint uLine, myf MyFlag);
414extern int _sanity(const char *sFile,unsigned int uLine);
415extern gptr _my_memdup(const byte *from,uint length,
416 const char *sFile, uint uLine,myf MyFlag);
417extern my_string _my_strdup(const char *from, const char *sFile, uint uLine,
418 myf MyFlag);
419#ifndef TERMINATE
420extern void TERMINATE(FILE *file);
421#endif
422extern void init_glob_errs(void);
423extern FILE *my_fopen(const char *FileName,int Flags,myf MyFlags);
424extern FILE *my_fdopen(File Filedes,const char *name, int Flags,myf MyFlags);
425extern int my_fclose(FILE *fd,myf MyFlags);
426extern int my_chsize(File fd,my_off_t newlength,myf MyFlags);
427extern int my_error _VARARGS((int nr,myf MyFlags, ...));
428extern int my_printf_error _VARARGS((uint my_err, const char *format,
429 myf MyFlags, ...)
430 __attribute__ ((format (printf, 2, 4))));
431extern int my_vsnprintf( char *str, size_t n,
432 const char *format, va_list ap );
433extern int my_snprintf(char* to, size_t n, const char* fmt, ...);
434extern int my_message(uint my_err, const char *str,myf MyFlags);
435extern int my_message_no_curses(uint my_err, const char *str,myf MyFlags);
436extern int my_message_curses(uint my_err, const char *str,myf MyFlags);
437extern void my_init(void);
438extern void my_end(int infoflag);
439extern int my_redel(const char *from, const char *to, int MyFlags);
440extern int my_copystat(const char *from, const char *to, int MyFlags);
441extern my_string my_filename(File fd);
442
443#ifndef THREAD
444extern void dont_break(void);
445extern void allow_break(void);
446#else
447#define dont_break()
448#define allow_break()
449#endif
450
451extern void my_remember_signal(int signal_number,sig_handler (*func)(int));
452extern void caseup(my_string str,uint length);
453extern void casedn(my_string str,uint length);
454extern void caseup_str(my_string str);
455extern void casedn_str(my_string str);
456extern void case_sort(my_string str,uint length);
457extern uint dirname_part(my_string to,const char *name);
458extern uint dirname_length(const char *name);
459#define base_name(A) (A+dirname_length(A))
460extern int test_if_hard_path(const char *dir_name);
461extern char *convert_dirname(my_string name);
462extern void to_unix_path(my_string name);
463extern my_string fn_ext(const char *name);
464extern my_string fn_same(my_string toname,const char *name,int flag);
465extern my_string fn_format(my_string to,const char *name,const char *dsk,
466 const char *form,int flag);
467extern size_s strlength(const char *str);
468extern void pack_dirname(my_string to,const char *from);
469extern uint unpack_dirname(my_string to,const char *from);
470extern uint cleanup_dirname(my_string to,const char *from);
471extern uint system_filename(my_string to,const char *from);
472extern my_string unpack_filename(my_string to,const char *from);
473extern my_string intern_filename(my_string to,const char *from);
474extern my_string directory_file_name(my_string dst, const char *src);
475extern int pack_filename(my_string to, const char *name, size_s max_length);
476extern my_string my_path(my_string to,const char *progname,
477 const char *own_pathname_part);
478extern my_string my_load_path(my_string to, const char *path,
479 const char *own_path_prefix);
480extern int wild_compare(const char *str,const char *wildstr);
481extern my_string my_strcasestr(const char *src,const char *suffix);
482extern int my_strcasecmp(const char *s,const char *t);
483extern int my_strsortcmp(const char *s,const char *t);
484extern int my_casecmp(const char *s,const char *t,uint length);
485extern int my_sortcmp(const char *s,const char *t,uint length);
486extern int my_sortncmp(const char *s,uint s_len, const char *t,uint t_len);
487extern WF_PACK *wf_comp(my_string str);
488extern int wf_test(struct wild_file_pack *wf_pack,const char *name);
489extern void wf_end(struct wild_file_pack *buffer);
490extern size_s stripp_sp(my_string str);
491extern void get_date(my_string to,int timeflag,time_t use_time);
492extern void soundex(my_string out_pntr, my_string in_pntr,pbool remove_garbage);
493extern int init_record_cache(RECORD_CACHE *info,uint cachesize,File file,
494 uint reclength,enum cache_type type,
495 pbool use_async_io);
496extern int read_cache_record(RECORD_CACHE *info,byte *to);
497extern int end_record_cache(RECORD_CACHE *info);
498extern int write_cache_record(RECORD_CACHE *info,my_off_t filepos,
499 const byte *record,uint length);
500extern int flush_write_cache(RECORD_CACHE *info);
501extern long my_clock(void);
502extern sig_handler sigtstp_handler(int signal_number);
503extern void handle_recived_signals(void);
504extern int init_key_cache(ulong use_mem,ulong leave_this_much_mem);
505extern byte *key_cache_read(File file,my_off_t filepos,byte* buff,uint length,
506 uint block_length,int return_buffer);
507extern int key_cache_write(File file,my_off_t filepos,byte* buff,uint length,
508 uint block_length,int force_write);
509extern int flush_key_blocks(int file, enum flush_type type);
510extern void end_key_cache(void);
511extern sig_handler my_set_alarm_variable(int signo);
512extern void my_string_ptr_sort(void *base,uint items,size_s size);
513extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements,
514 size_s size_of_element,uchar *buffer[]);
515extern qsort_t qsort2(void *base_ptr, size_t total_elems, size_t size,
516 qsort2_cmp cmp, void *cmp_argument);
517extern qsort2_cmp get_ptr_compare(uint);
518extern int init_io_cache(IO_CACHE *info,File file,uint cachesize,
519 enum cache_type type,my_off_t seek_offset,
520 pbool use_async_io, myf cache_myflags);
521extern my_bool reinit_io_cache(IO_CACHE *info,enum cache_type type,
522 my_off_t seek_offset,pbool use_async_io,
523 pbool clear_cache);
524extern int _my_b_read(IO_CACHE *info,byte *Buffer,uint Count);
525extern int _my_b_net_read(IO_CACHE *info,byte *Buffer,uint Count);
526extern int _my_b_get(IO_CACHE *info);
527extern int _my_b_async_read(IO_CACHE *info,byte *Buffer,uint Count);
528extern int _my_b_write(IO_CACHE *info,const byte *Buffer,uint Count);
529extern int my_block_write(IO_CACHE *info, const byte *Buffer,
530 uint Count, my_off_t pos);
531extern int flush_io_cache(IO_CACHE *info);
532extern int end_io_cache(IO_CACHE *info);
533extern uint my_b_fill(IO_CACHE *info);
534extern void my_b_seek(IO_CACHE *info,my_off_t pos);
535extern uint my_b_gets(IO_CACHE *info, char *to, uint max_length);
536extern uint my_b_printf(IO_CACHE *info, const char* fmt, ...);
537extern uint my_b_vprintf(IO_CACHE *info, const char* fmt, va_list ap);
538extern my_bool open_cached_file(IO_CACHE *cache,const char *dir,
539 const char *prefix, uint cache_size,
540 myf cache_myflags);
541extern my_bool real_open_cached_file(IO_CACHE *cache);
542extern void close_cached_file(IO_CACHE *cache);
543File create_temp_file(char *to, const char *dir, const char *pfx,
544 int mode, myf MyFlags);
545extern my_bool init_dynamic_array(DYNAMIC_ARRAY *array,uint element_size,
546 uint init_alloc,uint alloc_increment);
547extern my_bool insert_dynamic(DYNAMIC_ARRAY *array,gptr element);
548extern byte *alloc_dynamic(DYNAMIC_ARRAY *array);
549extern byte *pop_dynamic(DYNAMIC_ARRAY*);
550extern my_bool set_dynamic(DYNAMIC_ARRAY *array,gptr element,uint array_index);
551extern void get_dynamic(DYNAMIC_ARRAY *array,gptr element,uint array_index);
552extern void delete_dynamic(DYNAMIC_ARRAY *array);
553extern void delete_dynamic_element(DYNAMIC_ARRAY *array, uint array_index);
554extern void freeze_size(DYNAMIC_ARRAY *array);
555#define dynamic_array_ptr(array,array_index) ((array)->buffer+(array_index)*(array)->size_of_element)
556#define dynamic_element(array,array_index,type) ((type)((array)->buffer) +(array_index))
557#define push_dynamic(A,B) insert_dynamic(A,B)
558
559extern int find_type(my_string x,TYPELIB *typelib,uint full_name);
560extern void make_type(my_string to,uint nr,TYPELIB *typelib);
561extern const char *get_type(TYPELIB *typelib,uint nr);
562extern my_bool init_dynamic_string(DYNAMIC_STRING *str, const char *init_str,
563 uint init_alloc,uint alloc_increment);
564extern my_bool dynstr_append(DYNAMIC_STRING *str, const char *append);
565my_bool dynstr_append_mem(DYNAMIC_STRING *str, const char *append,
566 uint length);
567extern my_bool dynstr_set(DYNAMIC_STRING *str, const char *init_str);
568extern my_bool dynstr_realloc(DYNAMIC_STRING *str, ulong additional_size);
569extern void dynstr_free(DYNAMIC_STRING *str);
570void set_all_changeable_vars(CHANGEABLE_VAR *vars);
571my_bool set_changeable_var(my_string str,CHANGEABLE_VAR *vars);
572my_bool set_changeable_varval(const char *var, ulong val,
573 CHANGEABLE_VAR *vars);
574#ifdef HAVE_MLOCK
575extern byte *my_malloc_lock(uint length,myf flags);
576extern void my_free_lock(byte *ptr,myf flags);
577#else
578#define my_malloc_lock(A,B) my_malloc((A),(B))
579#define my_free_lock(A,B) my_free((A),(B))
580#endif
581#define alloc_root_inited(A) ((A)->min_malloc != 0)
582void init_alloc_root(MEM_ROOT *mem_root, uint block_size, uint pre_alloc_size);
583gptr alloc_root(MEM_ROOT *mem_root,unsigned int Size);
584void free_root(MEM_ROOT *root, myf MyFLAGS);
585char *strdup_root(MEM_ROOT *root,const char *str);
586char *memdup_root(MEM_ROOT *root,const char *str,uint len);
587void load_defaults(const char *conf_file, const char **groups,
588 int *argc, char ***argv);
589void free_defaults(char **argv);
590void print_defaults(const char *conf_file, const char **groups);
591my_bool my_compress(byte *, ulong *, ulong *);
592my_bool my_uncompress(byte *, ulong *, ulong *);
593byte *my_compress_alloc(const byte *packet, ulong *len, ulong *complen);
594ulong checksum(const byte *mem, uint count);
595
596#if defined(_MSC_VER) && !defined(__WIN__)
597extern void sleep(int sec);
598#endif
599#ifdef __WIN__
600extern my_bool have_tcpip; /* Is set if tcpip is used */
601#endif
602
603#ifdef __cplusplus
604}
605#endif
606#include "raid.h"
607#endif /* _my_sys_h */
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