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by brian
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/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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Static variables for mysys library. All definied here for easy making of
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a shared library
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*/
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C_MODE_START
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#include <signal.h> |
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#define MAX_SIGNALS 10 /* Max signals under a dont-allow */ |
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#define MIN_KEYBLOCK (min(IO_SIZE,1024))
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#define MAX_KEYBLOCK 8192 /* Max keyblocklength == 8*IO_SIZE */ |
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#define MAX_BLOCK_TYPES MAX_KEYBLOCK/MIN_KEYBLOCK
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struct st_remember { |
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int number; |
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sig_handler (*func)(int number); |
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};
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/*
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Structure that stores information of a allocated memory block
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The data is at &struct_adr+sizeof(ALIGN_SIZE(sizeof(struct irem)))
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The lspecialvalue is at the previous 4 bytes from this, which may not
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necessarily be in the struct if the struct size isn't aligned at a 8 byte
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boundary.
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*/
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struct st_irem |
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{
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struct st_irem *next; /* Linked list of structures */ |
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struct st_irem *prev; /* Other link */ |
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char *filename; /* File in which memory was new'ed */ |
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uint32 linenum; /* Line number in above file */ |
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uint32 datasize; /* Size requested */ |
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uint32 SpecialValue; /* Underrun marker value */ |
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};
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extern char curr_dir[FN_REFLEN], home_dir_buff[FN_REFLEN]; |
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extern volatile int _my_signals; |
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extern struct st_remember _my_sig_remember[MAX_SIGNALS]; |
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extern const char *soundex_map; |
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extern USED_MEM* my_once_root_block; |
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extern uint my_once_extra; |
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extern uchar *sf_min_adress,*sf_max_adress; |
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extern uint sf_malloc_count; |
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extern struct st_irem *sf_malloc_root; |
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extern struct st_my_file_info my_file_info_default[MY_NFILE]; |
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extern ulonglong query_performance_frequency, query_performance_offset; |
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#if defined(THREAD)
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extern sigset_t my_signals; /* signals blocked by mf_brkhant */ |
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#endif
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C_MODE_END
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