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src/libmysql_macosx/my_static.h
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00001 /* Copyright (C) 2000 MySQL AB
00002 
00003    This program is free software; you can redistribute it and/or modify
00004    it under the terms of the GNU General Public License as published by
00005    the Free Software Foundation; either version 2 of the License, or
00006    (at your option) any later version.
00007 
00008    This program is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011    GNU General Public License for more details.
00012 
00013    You should have received a copy of the GNU General Public License
00014    along with this program; if not, write to the Free Software
00015    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
00016 
00017 /*
00018   Static variables for mysys library. All definied here for easy making of
00019   a shared library
00020 */
00021 
00022 C_MODE_START
00023 #include <signal.h>
00024 
00025 #define MAX_SIGNALS     10              /* Max signals under a dont-allow */
00026 #define MIN_KEYBLOCK    (min(IO_SIZE,1024))
00027 #define MAX_KEYBLOCK    8192            /* Max keyblocklength == 8*IO_SIZE */
00028 #define MAX_BLOCK_TYPES MAX_KEYBLOCK/MIN_KEYBLOCK
00029 
00030 struct st_remember {
00031   int number;
00032   sig_handler (*func)(int number);
00033 };
00034 
00035 /*
00036   Structure that stores information of a allocated memory block
00037   The data is at &struct_adr+sizeof(ALIGN_SIZE(sizeof(struct irem)))
00038   The lspecialvalue is at the previous 4 bytes from this, which may not
00039   necessarily be in the struct if the struct size isn't aligned at a 8 byte
00040   boundary.
00041 */
00042 
00043 struct st_irem
00044 {
00045   struct st_irem *next;         /* Linked list of structures       */
00046   struct st_irem *prev;         /* Other link                      */
00047   char *filename;               /* File in which memory was new'ed */
00048   uint32 linenum;               /* Line number in above file       */
00049   uint32 datasize;              /* Size requested                  */
00050   uint32 SpecialValue;          /* Underrun marker value           */
00051 };
00052 
00053 
00054 extern char     NEAR curr_dir[FN_REFLEN],NEAR home_dir_buff[FN_REFLEN];
00055 
00056 extern volatile int _my_signals;
00057 extern struct st_remember _my_sig_remember[MAX_SIGNALS];
00058 
00059 extern const char *soundex_map;
00060 
00061 extern USED_MEM* my_once_root_block;
00062 extern uint      my_once_extra;
00063 
00064 #if !defined(HAVE_TEMPNAM) || defined(HPUX11)
00065 extern int      _my_tempnam_used;
00066 #endif
00067 
00068 extern byte     *sf_min_adress,*sf_max_adress;
00069 extern uint     sf_malloc_count;
00070 extern struct st_irem *sf_malloc_root;
00071 
00072 extern struct st_my_file_info my_file_info_default[MY_NFILE];
00073 
00074 #if defined(THREAD) && !defined(__WIN__)
00075 extern sigset_t my_signals;             /* signals blocked by mf_brkhant */
00076 #endif
00077 C_MODE_END
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