diff options
Diffstat (limited to 'storage/example/ha_example.cc')
| -rw-r--r-- | storage/example/ha_example.cc | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/storage/example/ha_example.cc b/storage/example/ha_example.cc index 604722c3c8c..b98466635cc 100644 --- a/storage/example/ha_example.cc +++ b/storage/example/ha_example.cc @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 MySQL AB +/* Copyright (C) 2003 MySQL AB, 2009 Sun Microsystems, Inc. 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 @@ -890,6 +890,24 @@ static struct st_mysql_sys_var* example_system_variables[]= { NULL }; +// this is an example of SHOW_FUNC and of my_snprintf() service +static int show_func_example(MYSQL_THD thd, struct st_mysql_show_var *var, + char *buf) +{ + var->type= SHOW_CHAR; + var->value= buf; // it's of SHOW_VAR_FUNC_BUFF_SIZE bytes + my_snprintf(buf, SHOW_VAR_FUNC_BUFF_SIZE, + "enum_var is %u, ulong_var is %lu, %.6b", // %b is MySQL extension + srv_enum_var, srv_ulong_var, "really"); + return 0; +} + +static struct st_mysql_show_var func_status[]= +{ + {"example_func_example", (char *)show_func_example, SHOW_FUNC}, + {0,0,SHOW_UNDEF} +}; + mysql_declare_plugin(example) { MYSQL_STORAGE_ENGINE_PLUGIN, @@ -901,7 +919,7 @@ mysql_declare_plugin(example) example_init_func, /* Plugin Init */ example_done_func, /* Plugin Deinit */ 0x0001 /* 0.1 */, - NULL, /* status variables */ + func_status, /* status variables */ example_system_variables, /* system variables */ NULL /* config options */ } |