my_static.h
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2000 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 */
- /*
- Static variables for mysys library. All definied here for easy making of
- a shared library
- */
- C_MODE_START
- #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);
- };
- /*
- Structure that stores information of a allocated memory block
- The data is at &struct_adr+sizeof(ALIGN_SIZE(sizeof(struct irem)))
- The lspecialvalue is at the previous 4 bytes from this, which may not
- necessarily be in the struct if the struct size isn't aligned at a 8 byte
- boundary.
- */
- struct st_irem
- {
- struct st_irem *next; /* Linked list of structures */
- struct st_irem *prev; /* Other link */
- char *filename; /* File in which memory was new'ed */
- uint32 linenum; /* Line number in above file */
- uint32 datasize; /* Size requested */
- uint32 SpecialValue; /* Underrun marker value */
- };
- 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 const char *soundex_map;
- extern USED_MEM* my_once_root_block;
- extern uint my_once_extra;
- #if !defined(HAVE_TEMPNAM) || defined(HPUX11)
- extern int _my_tempnam_used;
- #endif
- extern byte *sf_min_adress,*sf_max_adress;
- extern uint sf_malloc_count;
- extern struct st_irem *sf_malloc_root;
- extern struct st_my_file_info my_file_info_default[MY_NFILE];
- #if defined(THREAD) && !defined(__WIN__)
- extern sigset_t my_signals; /* signals blocked by mf_brkhant */
- #endif
- C_MODE_END