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Workshop plugin

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This commit is contained in:
Sergey Vojtovich
2017-10-06 14:03:03 +04:00
parent c5819d72c4
commit abcbed72c1
5 changed files with 94 additions and 0 deletions
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1
plugin/proc_info/CMakeLists.txt Normal file
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MYSQL_ADD_PLUGIN(PROC_INFO proc_info.cc RECOMPILE_FOR_EMBEDDED)

3
plugin/proc_info/mysql-test/proc_info/basic.test Normal file
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SHOW CREATE TABLE INFORMATION_SCHEMA.PROC_MEMINFO;
query_vertical SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_TYPE, PLUGIN_AUTHOR, PLUGIN_DESCRIPTION, PLUGIN_LICENSE, PLUGIN_MATURITY FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME='proc_meminfo';
SELECT * FROM INFORMATION_SCHEMA.PROC_MEMINFO;

1
plugin/proc_info/mysql-test/proc_info/suite.opt Normal file
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--plugin-load-add=$PROC_INFO_SO --plugin-proc-meminfo=ON

13
plugin/proc_info/mysql-test/proc_info/suite.pm Normal file
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package My::Suite::Proc_info;
@ISA = qw(My::Suite);
return "No PROC_INFO plugin" unless
$ENV{PROC_INFO_SO} or
$::mysqld_variables{'proc-info'} eq "ON";
return "Not run for embedded server" if $::opt_embedded_server;
sub is_default { 1 }
bless { };

76
plugin/proc_info/proc_info.cc Normal file
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#include <my_global.h>
#include <table.h>
#include <sql_show.h>
#include <sql_class.h>
#include <mysql/plugin.h>
static ST_FIELD_INFO fields[]=
{
{ "NAME", 100, MYSQL_TYPE_STRING, 0, 0, 0, SKIP_OPEN_TABLE },
{ "VALUE", 21, MYSQL_TYPE_LONG, 0, MY_I_S_UNSIGNED, 0, SKIP_OPEN_TABLE },
{ 0, 0, MYSQL_TYPE_STRING, 0, 0, 0, 0 }
};
static int fill(MYSQL_THD thd, TABLE_LIST *tables, COND *cond)
{
TABLE *table= tables->table;
char name[1024];
unsigned long value;
FILE *fp;
int res;
if (!(fp= fopen("/proc/meminfo", "r")))
return 1;
while ((res= fscanf(fp, "%[^:]: %lu kB\n", name, &value)) != EOF)
{
if (res != 2)
continue;
table->field[0]->store(name, strlen(name), system_charset_info);
table->field[1]->store(value);
if (schema_table_store_record(thd, table))
{
fclose(fp);
return 1;
}
}
fclose(fp);
return 0;
}
static int init(void *p)
{
ST_SCHEMA_TABLE *schema= (ST_SCHEMA_TABLE *) p;
schema->fields_info= fields;
schema->fill_table= fill;
return 0;
}
static struct st_mysql_information_schema plugin=
{ MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION };
maria_declare_plugin(proc_info)
{
MYSQL_INFORMATION_SCHEMA_PLUGIN, /* type */
&plugin, /* information schema */
"PROC_MEMINFO", /* name */
"" , /* author */
"Useful information from /proc", /* description */
PLUGIN_LICENSE_BSD, /* license */
init, /* init callback */
0, /* deinit callback */
0x0100, /* version as hex */
NULL, /* status variables */
NULL, /* system variables */
"1.0", /* version as a string */
MariaDB_PLUGIN_MATURITY_EXPERIMENTAL
}
maria_declare_plugin_end;