137 lines
3.6 KiB
C++
137 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) 2016 MariaDB Corporation Ab
|
|
*
|
|
* Use of this software is governed by the Business Source License included
|
|
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
|
|
*
|
|
* Change Date: 2023-11-12
|
|
*
|
|
* On the date above, in accordance with the Business Source License, use
|
|
* of this software will be governed by version 2 or later of the General
|
|
* Public License.
|
|
*/
|
|
|
|
#include <maxscale/mariadb.hh>
|
|
#include <maxbase/assert.h>
|
|
|
|
namespace
|
|
{
|
|
|
|
using namespace maxscale;
|
|
|
|
typedef void (* Callback)(void* pCollection,
|
|
const char* zDisk,
|
|
const char* zPath,
|
|
int64_t total,
|
|
int64_t used,
|
|
int64_t available);
|
|
|
|
int get_info(MYSQL* pMysql, Callback pCallback, void* pCollection)
|
|
{
|
|
int rv = 0;
|
|
|
|
rv = mysql_query(pMysql, "SELECT Disk, Path, Total, Used, Available FROM information_schema.disks");
|
|
|
|
if (rv == 0)
|
|
{
|
|
MYSQL_RES* pResult = mysql_store_result(pMysql);
|
|
|
|
if (pResult)
|
|
{
|
|
mxb_assert(mysql_field_count(pMysql) == 5);
|
|
|
|
MYSQL_ROW row;
|
|
|
|
while ((row = mysql_fetch_row(pResult)) != NULL)
|
|
{
|
|
char* pEnd;
|
|
|
|
int64_t total = strtoll(row[2], &pEnd, 0);
|
|
mxb_assert(*pEnd == 0);
|
|
int64_t used = strtoll(row[3], &pEnd, 0);
|
|
mxb_assert(*pEnd == 0);
|
|
int64_t available = strtoll(row[4], &pEnd, 0);
|
|
mxb_assert(*pEnd == 0);
|
|
|
|
pCallback(pCollection, row[0], row[1], total, used, available);
|
|
}
|
|
|
|
mysql_free_result(pResult);
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
template<class Collection>
|
|
inline int get_info(MYSQL* pMysql,
|
|
void (* pCallback)(Collection* pCollection,
|
|
const char* zDisk,
|
|
const char* zPath,
|
|
int64_t total,
|
|
int64_t used,
|
|
int64_t available),
|
|
Collection* pCollection)
|
|
{
|
|
pCollection->clear();
|
|
|
|
return get_info(pMysql, reinterpret_cast<Callback>(pCallback), pCollection);
|
|
}
|
|
|
|
void add_info_by_path(std::map<std::string, disk::SizesAndName>* pSizes,
|
|
const char* zDisk,
|
|
const char* zPath,
|
|
int64_t total,
|
|
int64_t used,
|
|
int64_t available)
|
|
{
|
|
pSizes->insert(std::make_pair(zPath, disk::SizesAndName(total, used, available, zDisk)));
|
|
}
|
|
|
|
void add_info_by_disk(std::map<std::string, disk::SizesAndPaths>* pSizes,
|
|
const char* zDisk,
|
|
const char* zPath,
|
|
int64_t total,
|
|
int64_t used,
|
|
int64_t available)
|
|
{
|
|
auto i = pSizes->find(zDisk);
|
|
|
|
if (i == pSizes->end())
|
|
{
|
|
disk::SizesAndPaths& item = i->second;
|
|
|
|
mxb_assert(total == item.total());
|
|
mxb_assert(used == item.used());
|
|
mxb_assert(available == item.available());
|
|
|
|
item.add_path(zPath);
|
|
}
|
|
else
|
|
{
|
|
disk::SizesAndPaths item(total, used, available, zPath);
|
|
|
|
pSizes->insert(std::make_pair(zDisk, item));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
namespace maxscale
|
|
{
|
|
|
|
namespace disk
|
|
{
|
|
|
|
int get_info_by_path(MYSQL* pMysql, std::map<std::string, disk::SizesAndName>* pInfo)
|
|
{
|
|
return get_info(pMysql, add_info_by_path, pInfo);
|
|
}
|
|
|
|
int get_info_by_disk(MYSQL* pMysql, std::map<std::string, disk::SizesAndPaths>* pInfo)
|
|
{
|
|
return get_info(pMysql, add_info_by_disk, pInfo);
|
|
}
|
|
}
|
|
}
|