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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
/*
Static variables for mysys library. All definied here for easy making of
a shared library
*/
#include "mysys_priv.h"
#include <signal.h>
#define MAX_SIGNALS 10 /* Max signals under a dont-allow */
#define MIN_KEYBLOCK (min(IO_SIZE,1024))
#define MAX_KEYBLOCK 8192 /* Max keyblocklength == 8*IO_SIZE */
#define MAX_BLOCK_TYPES MAX_KEYBLOCK/MIN_KEYBLOCK
struct st_remember {
int number;
sig_handler (*func)(int number);
};
typedef struct sec_link {
struct sec_link *next_hash,**prev_hash;/* Blocks linked acc. to hash-value */
struct sec_link *next_used,*prev_used;
struct sec_link *next_changed,**prev_changed;
File file;
my_off_t diskpos;
byte *buffer;
my_bool changed;
} SEC_LINK;
struct irem {
struct remember *_pNext; /* Linked list of structures */
struct remember *_pPrev; /* Other link */
my_string _sFileName; /* File in which memory was new'ed */
uint _uLineNum; /* Line number in above file */
uint _uDataSize; /* Size requested */
long _lSpecialValue; /* Underrun marker value */
};
struct remember {
struct irem tInt;
char aData[1];
};
extern char NEAR curr_dir[FN_REFLEN],NEAR home_dir_buff[FN_REFLEN];
extern volatile int _my_signals;
extern struct st_remember _my_sig_remember[MAX_SIGNALS];
extern my_bool key_cache_inited;
extern const char *soundex_map;
extern USED_MEM* my_once_root_block;
extern uint my_once_extra;
#ifndef HAVE_TEMPNAM
extern int _my_tempnam_used;
#endif
extern byte *sf_min_adress,*sf_max_adress;
extern uint cNewCount;
extern struct remember *pRememberRoot;
#if defined(THREAD) && !defined(__WIN__)
extern sigset_t my_signals; /* signals blocked by mf_brkhant */
#endif
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