diff options
Diffstat (limited to 'include/my_sys.h')
| -rw-r--r-- | include/my_sys.h | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/include/my_sys.h b/include/my_sys.h index 6082b988822..25c450e5d2b 100644 --- a/include/my_sys.h +++ b/include/my_sys.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2000 MySQL AB +/* Copyright (C) 2000-2003 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 @@ -111,6 +111,7 @@ extern int NEAR my_errno; /* Last error in mysys */ #define MY_WAIT_FOR_USER_TO_FIX_PANIC 60 /* in seconds */ #define MY_WAIT_GIVE_USER_A_MESSAGE 10 /* Every 10 times of prev */ #define MIN_COMPRESS_LENGTH 50 /* Don't compress small bl. */ +#define DFLT_INIT_HITS 3 /* root_alloc flags */ #define MY_KEEP_PREALLOC 1 @@ -510,13 +511,13 @@ typedef struct st_key_cache* KEY_CACHE_HANDLE; /* Key cache variable structure */ /* - The structure contains the parameters of a key cache that can - be set and undated by regular set global statements. - It also contains read-only statistics parameters. - If the corresponding key cache data structure has been already - created the variable contains the key cache handle. - The variables are put into a named list called key_caches. - At present the variables are only added to this list. + The structure contains the parameters of a key cache that can + be set and undated by regular set global statements. + It also contains read-only statistics parameters. + If the corresponding key cache data structure has been already + created the variable contains the key cache handle. + The variables are put into a named list called key_caches. + At present the variables are only added to this list. */ typedef struct st_key_cache_var { @@ -532,16 +533,16 @@ typedef struct st_key_cache_var ulong cache_r_requests; /* number of read requests (read hits) */ ulong cache_read; /* number of reads from files to the cache */ int blocks; /* max number of blocks in the cache */ + my_bool in_init; /* Set to 1 in MySQL during init/resize */ struct st_key_cache_asmt *assign_list; /* list of assignments to the cache */ int assignments; /* number of not completed assignments */ void (*action)(void *); /* optional call back function */ void *extra_info; /* ptr to extra info */ } KEY_CACHE_VAR; -#define DEFAULT_KEY_CACHE_NAME "default" + extern KEY_CACHE_HANDLE *dflt_keycache; extern KEY_CACHE_VAR dflt_key_cache_var; -#define DFLT_INIT_HITS 3 #include <my_alloc.h> @@ -701,7 +702,15 @@ extern int key_cache_write(KEY_CACHE_HANDLE keycache, uint block_length,int force_write); extern int flush_key_blocks(KEY_CACHE_HANDLE keycache, int file, enum flush_type type); -extern void end_key_cache(KEY_CACHE_HANDLE *pkeycache,my_bool cleanup); +extern void end_key_cache(KEY_CACHE_HANDLE keycache, my_bool cleanup); +extern my_bool multi_keycache_init(void); +extern void multi_keycache_free(void); +extern KEY_CACHE_HANDLE *multi_key_cache_search(byte *key, uint length); +extern my_bool multi_key_cache_set(const byte *key, uint length, + KEY_CACHE_HANDLE *key_cache); +extern void multi_key_cache_change(KEY_CACHE_HANDLE *old_data, + KEY_CACHE_HANDLE *new_data); + extern sig_handler my_set_alarm_variable(int signo); extern void my_string_ptr_sort(void *base,uint items,size_s size); extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements, |