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WL#4738 streamline/simplify @@variable creation process

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Bug#16565 mysqld --help --verbose does not order variablesBug#20413 sql_slave_skip_counter is not shown in show variables
Bug#20415 Output of mysqld --help --verbose is incomplete
Bug#25430 variable not found in SELECT @@global.ft_max_word_len;
Bug#32902 plugin variables don't know their names
Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting!
Bug#34829 No default value for variable and setting default does not raise error
Bug#34834 ? Is accepted as a valid sql mode
Bug#34878 Few variables have default value according to documentation but error occurs  
Bug#34883 ft_boolean_syntax cant be assigned from user variable to global var.
Bug#37187 `INFORMATION_SCHEMA`.`GLOBAL_VARIABLES`: inconsistent status
Bug#40988 log_output_basic.test succeeded though syntactically false.
Bug#41010 enum-style command-line options are not honoured (maria.maria-recover fails)
Bug#42103 Setting key_buffer_size to a negative value may lead to very large allocations 
Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled
Bug#44797 plugins w/o command-line options have no disabling option in --help
Bug#46314 string system variables don't support expressions
Bug#46470 sys_vars.max_binlog_cache_size_basic_32 is broken
Bug#46586 When using the plugin interface the type "set" for options caused a crash.
Bug#47212 Crash in DBUG_PRINT in mysqltest.cc when trying to print octal number
Bug#48758 mysqltest crashes on sys_vars.collation_server_basic in gcov builds
Bug#49417 some complaints about mysqld --help --verbose output
Bug#49540 DEFAULT value of binlog_format isn't the default value
Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix)
Bug#49644 init_connect and \0
Bug#49645 init_slave and multi-byte characters
Bug#49646 mysql --show-warnings crashes when server dies


CMakeLists.txt:
  Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled
client/mysql.cc:
  don't crash with --show-warnings when mysqld dies
config/ac-macros/plugins.m4:
  Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled
include/my_getopt.h:
  comments
include/my_pthread.h:
  fix double #define
mysql-test/mysql-test-run.pl:
  run sys_vars suite by default
  properly recognize envirinment variables (e.g. MTR_MAX_SAVE_CORE) set to 0
  escape gdb command line arguments
mysql-test/suite/sys_vars/r/rpl_init_slave_func.result:
  init_slave+utf8 bug
mysql-test/suite/sys_vars/t/rpl_init_slave_func.test:
  init_slave+utf8 bug
mysys/my_getopt.c:
  Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting!
  Bug#46586 When using the plugin interface the type "set" for options caused a crash.
  Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix)
mysys/typelib.c:
  support for flagset
sql/ha_ndbcluster.cc:
  backport from telco tree
sql/item_func.cc:
  Bug#49644 init_connect and \0
  Bug#49645 init_slave and multi-byte characters
sql/sql_builtin.cc.in:
  Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled
sql/sql_plugin.cc:
  Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled
  Bug#32902 plugin variables don't know their names
  Bug#44797 plugins w/o command-line options have no disabling option in --help
sql/sys_vars.cc:
  all server variables are defined here
storage/myisam/ft_parser.c:
  remove unnecessary updates of param->quot
storage/myisam/ha_myisam.cc:
  myisam_* variables belong here
strings/my_vsnprintf.c:
  %o and %llx
unittest/mysys/my_vsnprintf-t.c:
  %o and %llx tests
vio/viosocket.c:
  bugfix: fix @@wait_timeout to work with socket timeouts (vs. alarm thread)
This commit is contained in:
Sergei Golubchik
2009-12-22 10:35:56 +01:00
parent 22c6534698
commit 1ad5bb1a69
739 changed files with 16098 additions and 14754 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
sql/debug_sync.cc
View File

@ -1561,56 +1561,6 @@ static bool debug_sync_eval_action(THD *thd, char *action_str)
DBUG_RETURN(FALSE);
}
/**
Check if the system variable 'debug_sync' can be set.
@param[in] thd thread handle
@param[in] var set variable request
@return status
@retval FALSE ok, variable can be set
@retval TRUE error, variable cannot be set
*/
bool sys_var_debug_sync::check(THD *thd, set_var *var)
{
DBUG_ENTER("sys_var_debug_sync::check");
DBUG_ASSERT(thd);
DBUG_ASSERT(var);
/*
Variable can be set for the session only.
This could be changed later. Then we need to have a global array of
actions in addition to the thread local ones. SET GLOBAL would
manage the global array, SET [SESSION] the local array. A sync point
would need to look for a local and a global action. Setting and
executing of global actions need to be protected by a mutex.
The purpose of global actions could be to allow synchronizing with
connectionless threads that cannot execute SET statements.
*/
if (var->type == OPT_GLOBAL)
{
my_error(ER_LOCAL_VARIABLE, MYF(0), name);
DBUG_RETURN(TRUE);
}
/*
Do not check for disabled facility. Test result should not
unnecessarily differ from enabled facility.
*/
/*
Facility requires SUPER privilege. Sync points could be inside
global mutexes (e.g. LOCK_open). Waiting there forever would
stall the whole server.
*/
DBUG_RETURN(check_global_access(thd, SUPER_ACL));
}
/**
Set the system variable 'debug_sync'.
@ -1631,28 +1581,9 @@ bool sys_var_debug_sync::check(THD *thd, set_var *var)
terminators in the string. So we need to take a copy here.
*/
bool sys_var_debug_sync::update(THD *thd, set_var *var)
bool debug_sync_update(THD *thd, char *val_str)
{
char *val_str;
String *val_ptr;
String val_buf;
DBUG_ENTER("sys_var_debug_sync::update");
DBUG_ASSERT(thd);
/*
Depending on the value type (string literal, user variable, ...)
val_buf receives a copy of the value or not. But we always need
a copy. So we take a copy, if it is not done by val_str().
If val_str() puts a copy into val_buf, then it returns &val_buf,
otherwise it returns a pointer to the string object that we need
to copy.
*/
val_ptr= var ? var->value->val_str(&val_buf) : &val_buf;
if (val_ptr != &val_buf)
{
val_buf.copy(*val_ptr);
}
val_str= val_buf.c_ptr();
DBUG_ENTER("debug_sync_update");
DBUG_PRINT("debug_sync", ("set action: '%s'", val_str));
/*
@ -1669,8 +1600,6 @@ bool sys_var_debug_sync::update(THD *thd, set_var *var)
Retrieve the value of the system variable 'debug_sync'.
@param[in] thd thread handle
@param[in] type variable type, unused
@param[in] base variable base, unused
@return string
@retval != NULL ok, string pointer
@ -1683,13 +1612,10 @@ bool sys_var_debug_sync::update(THD *thd, set_var *var)
When "ON", the current signal is added.
*/
uchar *sys_var_debug_sync::value_ptr(THD *thd,
enum_var_type type __attribute__((unused)),
LEX_STRING *base __attribute__((unused)))
uchar *debug_sync_value_ptr(THD *thd)
{
char *value;
DBUG_ENTER("sys_var_debug_sync::value_ptr");
DBUG_ASSERT(thd);
DBUG_ENTER("debug_sync_value_ptr");
if (opt_debug_sync_timeout)
{
@ -1718,7 +1644,7 @@ uchar *sys_var_debug_sync::value_ptr(THD *thd,
else
{
/* purecov: begin tested */
value= strmake_root(thd->mem_root, STRING_WITH_LEN("OFF"));
value= const_cast<char*>("OFF");
/* purecov: end */
}