77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
/* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
|
|
|
|
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
|
|
the Free Software Foundation; version 2 of the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
|
|
|
|
/**
|
|
@file storage/perfschema/cursor_by_thread.cc
|
|
Cursor CURSOR_BY_THREAD (implementation).
|
|
*/
|
|
|
|
#include "my_global.h"
|
|
#include "cursor_by_thread.h"
|
|
#include "pfs_instr.h"
|
|
#include "pfs_buffer_container.h"
|
|
|
|
ha_rows
|
|
cursor_by_thread::get_row_count(void)
|
|
{
|
|
return global_thread_container.get_row_count();
|
|
}
|
|
|
|
cursor_by_thread::cursor_by_thread(const PFS_engine_table_share *share)
|
|
: PFS_engine_table(share, &m_pos),
|
|
m_pos(0), m_next_pos(0)
|
|
{}
|
|
|
|
void cursor_by_thread::reset_position(void)
|
|
{
|
|
m_pos.m_index= 0;
|
|
m_next_pos.m_index= 0;
|
|
}
|
|
|
|
int cursor_by_thread::rnd_next(void)
|
|
{
|
|
PFS_thread *pfs;
|
|
|
|
m_pos.set_at(&m_next_pos);
|
|
PFS_thread_iterator it= global_thread_container.iterate(m_pos.m_index);
|
|
pfs= it.scan_next(& m_pos.m_index);
|
|
if (pfs != NULL)
|
|
{
|
|
make_row(pfs);
|
|
m_next_pos.set_after(&m_pos);
|
|
return 0;
|
|
}
|
|
|
|
return HA_ERR_END_OF_FILE;
|
|
}
|
|
|
|
int
|
|
cursor_by_thread::rnd_pos(const void *pos)
|
|
{
|
|
PFS_thread *pfs;
|
|
|
|
set_position(pos);
|
|
|
|
pfs= global_thread_container.get(m_pos.m_index);
|
|
if (pfs != NULL)
|
|
{
|
|
make_row(pfs);
|
|
return 0;
|
|
}
|
|
|
|
return HA_ERR_RECORD_DELETED;
|
|
}
|
|
|