database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-12-24 11:21:21 +03:00
Code Activity

processing trunsactional tables in query cache

Browse Source
This commit is contained in:
bell@sanja.is.com.ua
2002-03-15 23:57:31 +02:00
parent 12f1cba0e7
commit 63b2a551bf
14 changed files with 405 additions and 134 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
sql/sql_class.h
View File

@@ -258,7 +258,7 @@ class THD :public ilink {
public:
NET net; // client connection descriptor
LEX lex; // parse tree descriptor
MEM_ROOT mem_root; // memory allocation pool
MEM_ROOT mem_root; // 1 command-life memory allocation pool
HASH user_vars; // hash for user variables
String packet; // dynamic string buffer used for network I/O
struct sockaddr_in remote; // client socket address
@@ -326,6 +326,19 @@ public:
THD_TRANS all; // Trans since BEGIN WORK
THD_TRANS stmt; // Trans for current statement
uint bdb_lock_count;
/*
Tables changed in transaction (that must be invalidated in query cache).
List contain only transactional tables, that not invalidated in query
cache (instead of full list of changed in transaction tables).
*/
CHANGED_TABLE_LIST* changed_tables;
MEM_ROOT mem_root; // Transaction-life memory allocation pool
void cleanup()
{
changed_tables = 0;
free_root(&mem_root,MYF(MY_KEEP_PREALLOC));
}
} transaction;
Item *free_list, *handler_items;
CONVERT *convert_set;
@@ -374,7 +387,7 @@ public:
ulong slave_proxy_id;
NET* slave_net; // network connection from slave -> m.
my_off_t log_pos;
THD();
~THD();
void cleanup(void);
@@ -471,6 +484,12 @@ public:
memcpy(ptr,str,size);
return ptr;
}
inline gptr trans_alloc(unsigned int size)
{
return alloc_root(&transaction.mem_root,size);
}
void add_changed_table(TABLE *table);
CHANGED_TABLE_LIST * changed_table_dup(TABLE *table);
};