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Added key cache assignment mi_locking.c: Added key cache assignment: correction my_sys.h: Added key cache variable structure include/my_sys.h: Added key cache variable structure include/my_base.h: Added key cache assignment include/myisam.h: Added key cache assignment include/my_global.h: Added key cache assignment isam/_page.c: Added key cache assignment isam/close.c: Added key cache assignment isam/isamchk.c: Added key cache assignment isam/isamlog.c: Added key cache assignment isam/panic.c: Added key cache assignment isam/_locking.c: Added key cache assignment isam/test2.c: Added key cache assignment isam/test3.c: Added key cache assignment myisam/myisamdef.h: Added key cache assignment myisam/mi_check.c: Added key cache assignment myisam/mi_close.c: Added key cache assignment myisam/mi_extra.c: Added key cache assignment myisam/mi_page.c: Added key cache assignment myisam/mi_panic.c: Added key cache assignment myisam/mi_preload.c: Added key cache assignment myisam/mi_test1.c: Added key cache assignment myisam/mi_test2.c: Added key cache assignment myisam/mi_test3.c: Added key cache assignment myisam/myisamchk.c: Added key cache assignment myisam/myisamlog.c: Added key cache assignment myisam/mi_delete_all.c: Added key cache assignment myisam/mi_locking.c: Added key cache assignment: correction myisam/mi_keycache.c: Added key cache assignment sql/handler.h: Added key cache assignment sql/mysql_priv.h: Added key cache assignment sql/set_var.h: Added key cache assignment sql/table.h: Added key cache assignment sql/ha_myisam.cc: Added key cache assignment sql/ha_myisammrg.cc: Added key cache assignment sql/handler.cc: Added key cache assignment sql/mysqld.cc: Added key cache assignment sql/set_var.cc: Added key cache assignment sql/sql_base.cc: Added key cache assignment sql/sql_table.cc: Added key cache assignment sql/sql_test.cc: Added key cache assignment sql/sql_yacc.yy: Added key cache assignment mysys/mf_keycache.c: Added key cache assignment mysql-test/t/key_cache.test: Added key cache assignment mysql-test/r/key_cache.result: Added key cache assignment
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@ -111,8 +111,6 @@ extern int NEAR my_errno; /* Last error in mysys */
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#define MY_WAIT_FOR_USER_TO_FIX_PANIC 60 /* in seconds */
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#define MY_WAIT_GIVE_USER_A_MESSAGE 10 /* Every 10 times of prev */
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#define MIN_COMPRESS_LENGTH 50 /* Don't compress small bl. */
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#define DEFAULT_KEYCACHE_BLOCK_SIZE 1024
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#define MAX_KEYCACHE_BLOCK_SIZE 16384
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/* root_alloc flags */
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#define MY_KEEP_PREALLOC 1
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@ -248,8 +246,6 @@ extern my_bool NEAR my_disable_locking,NEAR my_disable_async_io,
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extern char wild_many,wild_one,wild_prefix;
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extern const char *charsets_dir;
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extern char *defaults_extra_file;
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extern void *dflt_keycache;
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#define dflt_key_block_size DEFAULT_KEYCACHE_BLOCK_SIZE
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typedef struct wild_file_pack /* Struct to hold info when selecting files */
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{
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@ -503,11 +499,37 @@ my_off_t my_b_append_tell(IO_CACHE* info);
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#define my_b_bytes_in_cache(info) (uint) (*(info)->current_end - \
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*(info)->current_pos)
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/* key_cache_variables */
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typedef struct st_keycache
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/* Pointer to a key cache data structure (see the key cache module) */
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typedef struct st_key_cache* KEY_CACHE_HANDLE;
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/* Key cache variable structure */
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/*
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The structure contains the parameters of a key cache that can
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be set and undated by regular set global statements.
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It also contains read-only statistics parameters.
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If the corresponding key cache data structure has been already
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created the variable contains the key cache handle.
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The variables are put into a named list called key_caches.
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At present the variables are only added to this list.
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*/
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typedef struct st_key_cache_var
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{
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ulonglong size;
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} KEY_CACHE;
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ulonglong buff_size; /* size the memory allocated for the cache */
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ulong block_size; /* size of the blocks in the key cache */
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KEY_CACHE_HANDLE cache; /* handles for the current and registered */
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ulong blocks_used; /* number of currently used blocks */
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ulong blocks_changed; /* number of currently dirty blocks */
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ulong cache_w_requests; /* number of write requests (write hits) */
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ulong cache_write; /* number of writes from the cache to files */
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ulong cache_r_requests; /* number of read requests (read hits) */
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ulong cache_read; /* number of reads from files to the cache */
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int blocks; /* max number of blocks in the cache */
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struct st_key_cache_asmt *assign_list; /* list of assignments to the cache */
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} KEY_CACHE_VAR;
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#define DEFAULT_KEY_CACHE_NAME "default"
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extern KEY_CACHE_HANDLE *dflt_keycache;
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extern KEY_CACHE_VAR dflt_key_cache_var;
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#include <my_alloc.h>
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@ -647,21 +669,22 @@ extern int flush_write_cache(RECORD_CACHE *info);
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extern long my_clock(void);
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extern sig_handler sigtstp_handler(int signal_number);
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extern void handle_recived_signals(void);
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extern int init_key_cache(void **pkeycache,uint key_cache_block_size,
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ulong use_mem);
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extern int resize_key_cache(void **pkeycache,ulong use_mem);
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extern byte *key_cache_read(void *pkeycache,
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extern int init_key_cache(KEY_CACHE_HANDLE *pkeycache,
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uint key_cache_block_sie,
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ulong use_mem, KEY_CACHE_VAR* env);
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extern int resize_key_cache(KEY_CACHE_HANDLE *pkeycache, ulong use_mem);
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extern byte *key_cache_read(KEY_CACHE_HANDLE keycache,
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File file,my_off_t filepos,byte* buff,uint length,
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uint block_length,int return_buffer);
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extern int key_cache_insert(void *pkeycache,
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extern int key_cache_insert(KEY_CACHE_HANDLE keycache,
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File file, my_off_t filepos,
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byte *buff, uint length);
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extern int key_cache_write(void *pkeycache,
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extern int key_cache_write(KEY_CACHE_HANDLE keycache,
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File file,my_off_t filepos,byte* buff,uint length,
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uint block_length,int force_write);
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extern int flush_key_blocks(void *pkeycache,
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extern int flush_key_blocks(KEY_CACHE_HANDLE keycache,
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int file, enum flush_type type);
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extern void end_key_cache(void **pkeycache,my_bool cleanup);
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extern void end_key_cache(KEY_CACHE_HANDLE *pkeycache,my_bool cleanup);
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extern sig_handler my_set_alarm_variable(int signo);
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extern void my_string_ptr_sort(void *base,uint items,size_s size);
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extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements,
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