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dded volatile to replication variable

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Docs/manual.texi:
  Changelog
sql/slave.cc:
  Added volatile to replication variable
sql/slave.h:
  Added volatile to replication variable
sql/sql_base.cc:
  Cleanup
sql/sql_show.cc:
  Cleanup
This commit is contained in:
unknown 2001-07-07 23:26:06 +03:00
commit 973c1c44aa
5 changed files with 32 additions and 14 deletions
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37
Docs/manual.texi
View file

@ -46423,7 +46423,9 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
@itemize @bullet
@item
Don't anymore support the client protocol prior to 3.21.
Multi-table @code{DELETE}.
@item
Don't anymore support old client protocols prior to @strong{MySQL} 3.21.
@item
Don't include the old C API functions @code{mysql_drop_db},
@code{mysql_create_db} and @code{mysql_connect}, if not compiled with
@ -51898,9 +51900,6 @@ master.
@code{DELETE FROM table_name} will return the number of deleted rows. For
fast execution one should use @code{TRUNCATE table_name}.
@item
Multi-table @code{DELETE} (cascading @code{DELETE} and multi-table
@code{DELETE}.
@item
Allow @code{DELETE} on @code{MyISAM} tables to use the record cache.
To do this, we need to update the threads record cache when we update
the @code{.MYD} file.
@ -51974,7 +51973,19 @@ structure.
Don't allow more than a defined number of threads to run MyISAM recover
at the same time.
@item
Change @code{INSERT ... SELECT} to use concurrent inserts.
Change @code{INSERT ... SELECT} to optionally use concurrent inserts.
@item
Implement @code{RENAME DATABASE}. To make this safe for all table handlers,
it should work as follows:
@itemize @bullet
@item
Create the new database.
@item
For every table do a rename of the table to another database, as
we do with the @code{RENAME} command.
@item
Drop the old database.
@end itemize
@item
Return the original field types() when doing @code{SELECT MIN(column)
... GROUP BY}.
@ -51989,9 +52000,11 @@ in microseconds.
@item
Add range checking to @code{MERGE} tables.
@item
Link the @code{myisampack} code into the server.
@item
Port of @strong{MySQL} to BeOS.
@item
Link the @code{myisampack} code into the server.
Port of the @strong{MySQL} clients to LynxOS.
@item
Add a temporary key buffer cache during @code{INSERT/DELETE/UPDATE} so that we
can gracefully recover if the index file gets full.
@ -52019,6 +52032,8 @@ a concurrent insert at the end of the file if the file is read-locked.
@item
Remember @code{FOREIGN} key definitions in the @file{.frm} file.
@item
Cascading @code{DELETE}
@item
Server side cursors.
@item
Check if @code{lockd} works with modern Linux kernels; If not, we have
@ -52028,6 +52043,13 @@ give any errors if @code{lockd} works.
@item
Allow SQL variables in @code{LIMIT}, like in @code{LIMIT @@a,@@b}.
@item
Allow update of variables in @code{UPDATE} statements. For example:
@code{UPDATE TABLE foo SET @@a=a+b,a=@@a, b=@@a+c}
@item
Change when user variables are updated so that one can use them with
@code{GROUP BY}, as in the following example:
@code{SELECT id, @@a:=count(*), sum(sum_col)/@@a FROM table_name GROUP BY id}.
@item
Don't add automatic @code{DEFAULT} values to columns. Give an error when using
an @code{INSERT} that doesn't contain a column that doesn't have a
@code{DEFAULT}.
@ -52166,9 +52188,6 @@ Change that @code{ALTER TABLE} doesn't abort clients that executes
Fix that when columns referenced in an @code{UPDATE} clause contains the old
values before the update started.
@item
Allow update of variables in @code{UPDATE} statements. For example:
@code{UPDATE TABLE foo SET @@a=a+b,a=@@a, b=@@a+c}
@item
@code{myisamchk}, @code{REPAIR} and @code{OPTIMIZE TABLE} should be able
to handle cases where the data and/or index files are symbolic links.
@item

2
sql/slave.cc
View file

@ -26,7 +26,7 @@
#define RPL_LOG_NAME (glob_mi.log_file_name[0] ? glob_mi.log_file_name :\
"FIRST")
bool slave_running = 0;
volatile bool slave_running = 0;
pthread_t slave_real_id;
MASTER_INFO glob_mi;
HASH replicate_do_table, replicate_ignore_table;

3
sql/slave.h
View file

@ -91,8 +91,7 @@ int init_master_info(MASTER_INFO* mi);
void end_master_info(MASTER_INFO* mi);
extern bool opt_log_slave_updates ;
pthread_handler_decl(handle_slave,arg);
extern bool volatile abort_loop, abort_slave;
extern bool slave_running;
extern bool volatile abort_loop, abort_slave, slave_running;
extern uint32 slave_skip_counter;
// needed for problems when slave stops and
// we want to restart it skipping one or more events in the master log that

3
sql/sql_base.cc
View file

@ -121,7 +121,7 @@ int list_open_tables(THD *thd,List<char> *tables, const char *db,
VOID(pthread_mutex_lock(&LOCK_open));
bzero((char*) &table_list,sizeof(table_list));
for (uint idx=0 ; result == 0 && idx < open_cache.records; idx++)
for (uint idx=0 ; idx < open_cache.records; idx++)
{
TABLE *entry=(TABLE*) hash_element(&open_cache,idx);
if ((!entry->real_name) || strcmp(entry->table_cache_key,db))
@ -152,6 +152,7 @@ int list_open_tables(THD *thd,List<char> *tables, const char *db,
if (tables->push_back(thd->strdup(entry->real_name)))
{
result = -1;
break;
}
}

1
sql/sql_show.cc
View file

@ -127,7 +127,6 @@ int mysqld_show_open_tables(THD *thd,const char *db,const char *wild)
DBUG_RETURN(-1);
}
send_eof(&thd->net);
DBUG_RETURN(0);
}