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Bug#26243 mysql command line crash after control-c

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- Backported the 5.1 DBUG to 5.0.
- Avoid memory cleanup race on Windows client for CTRL-C


client/mysql.cc:
  Bug#26243 mysql command line crash after control-c
  - On Windows, the sigint handler shouldn't call mysql_end
  because the main thread will do so automatically.
  - Remove unnecessary signal call from the sigint handler.
  - Call my_end with proper value.
dbug/dbug.c:
  Bug#26243 mysql command line crash after control-c
  - Backported the 5.1 DBUG library. The old version uses a non-thread 
  safe global variable 'static struct state *stack'.
dbug/factorial.c:
  Bug#26243 mysql command line crash after control-c
  - Backported the 5.1 DBUG library. The old version uses a non-thread 
  safe global variable 'static struct state *stack'.
dbug/user.r:
  Bug#26243 mysql command line crash after control-c
  - Backported the 5.1 DBUG library. The old version uses a non-thread 
  safe global variable 'static struct state *stack'.
include/my_dbug.h:
  Bug#26243 mysql command line crash after control-c
  - Backported the 5.1 DBUG library. The old version uses a non-thread 
  safe global variable 'static struct state *stack'.
libmysql/libmysql.c:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
myisam/mi_open.c:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/ha_federated.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/ha_innodb.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/ha_myisammrg.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/item_cmpfunc.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/mysqld.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/net_serv.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/opt_range.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/set_var.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/slave.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/sql_cache.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
sql/sql_select.cc:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
tests/mysql_client_test.c:
  Bug#26243 mysql command line crash after control-c
  - Update for new DBUG library.
This commit is contained in:
unknown
2008-03-28 14:02:27 -04:00
parent fd1616311d
commit a9089cf460
19 changed files with 1823 additions and 1513 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
client/mysql.cc
View File

@ -1216,21 +1216,35 @@ sig_handler mysql_sigint(int sig)
char kill_buffer[40];
MYSQL *kill_mysql= NULL;
signal(SIGINT, mysql_sigint);
/* terminate if no query being executed, or we already tried interrupting */
if (!executing_query || interrupted_query++)
mysql_end(sig);
goto err;
kill_mysql= mysql_init(kill_mysql);
if (!mysql_real_connect(kill_mysql,current_host, current_user, opt_password,
"", opt_mysql_port, opt_mysql_unix_port,0))
mysql_end(sig);
goto err;
/* kill_buffer is always big enough because max length of %lu is 15 */
sprintf(kill_buffer, "KILL /*!50000 QUERY */ %lu", mysql_thread_id(&mysql));
mysql_real_query(kill_mysql, kill_buffer, strlen(kill_buffer));
mysql_close(kill_mysql);
tee_fprintf(stdout, "Query aborted by Ctrl+C\n");
return;
err:
#ifdef _WIN32
/*
When SIGINT is raised on Windows, the OS creates a new thread to handle the
interrupt. Once that thread completes, the main thread continues running
only to find that it's resources have already been free'd when the sigint
handler called mysql_end().
*/
mysql_thread_end();
return;
#else
mysql_end(sig);
#endif
}
sig_handler mysql_end(int sig)
@ -1271,7 +1285,7 @@ sig_handler mysql_end(int sig)
my_free(current_prompt,MYF(MY_ALLOW_ZERO_PTR));
mysql_server_end();
free_defaults(defaults_argv);
my_end(info_flag ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
my_end(info_flag ? MY_CHECK_ERROR | MY_GIVE_INFO : MY_CHECK_ERROR);
exit(status.exit_status);
}