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/* Copyright (c) 2008, 2010, 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,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
/**
@file storage/perfschema/table_all_instr.cc
Abstract tables for all instruments (implementation).
*/
#include "my_global.h"
#include "my_pthread.h"
#include "table_all_instr.h"
#include "pfs_global.h"
table_all_instr::table_all_instr(const PFS_engine_table_share *share)
: PFS_engine_table(share, &m_pos),
m_pos(), m_next_pos()
{}
void table_all_instr::reset_position(void)
{
m_pos.reset();
m_next_pos.reset();
}
int table_all_instr::rnd_next(void)
{
PFS_mutex *mutex;
PFS_rwlock *rwlock;
PFS_cond *cond;
PFS_file *file;
PFS_socket *socket;
for (m_pos.set_at(&m_next_pos);
m_pos.has_more_view();
m_pos.next_view())
{
switch (m_pos.m_index_1) {
case pos_all_instr::VIEW_MUTEX:
for ( ; m_pos.m_index_2 < mutex_max; m_pos.m_index_2++)
{
mutex= &mutex_array[m_pos.m_index_2];
if (mutex->m_lock.is_populated())
{
make_mutex_row(mutex);
m_next_pos.set_after(&m_pos);
return 0;
}
}
break;
case pos_all_instr::VIEW_RWLOCK:
for ( ; m_pos.m_index_2 < rwlock_max; m_pos.m_index_2++)
{
rwlock= &rwlock_array[m_pos.m_index_2];
if (rwlock->m_lock.is_populated())
{
make_rwlock_row(rwlock);
m_next_pos.set_after(&m_pos);
return 0;
}
}
break;
case pos_all_instr::VIEW_COND:
for ( ; m_pos.m_index_2 < cond_max; m_pos.m_index_2++)
{
cond= &cond_array[m_pos.m_index_2];
if (cond->m_lock.is_populated())
{
make_cond_row(cond);
m_next_pos.set_after(&m_pos);
return 0;
}
}
break;
case pos_all_instr::VIEW_FILE:
for ( ; m_pos.m_index_2 < file_max; m_pos.m_index_2++)
{
file= &file_array[m_pos.m_index_2];
if (file->m_lock.is_populated())
{
make_file_row(file);
m_next_pos.set_after(&m_pos);
return 0;
}
}
break;
case pos_all_instr::VIEW_SOCKET:
for ( ; m_pos.m_index_2 < socket_max; m_pos.m_index_2++)
{
socket= &socket_array[m_pos.m_index_2];
if (socket->m_lock.is_populated())
{
make_socket_row(socket);
m_next_pos.set_after(&m_pos);
return 0;
}
}
break;
}
}
return HA_ERR_END_OF_FILE;
}
int table_all_instr::rnd_pos(const void *pos)
{
PFS_mutex *mutex;
PFS_rwlock *rwlock;
PFS_cond *cond;
PFS_file *file;
PFS_socket *socket;
set_position(pos);
switch (m_pos.m_index_1) {
case pos_all_instr::VIEW_MUTEX:
DBUG_ASSERT(m_pos.m_index_2 < mutex_max);
mutex= &mutex_array[m_pos.m_index_2];
if (mutex->m_lock.is_populated())
{
make_mutex_row(mutex);
return 0;
}
break;
case pos_all_instr::VIEW_RWLOCK:
DBUG_ASSERT(m_pos.m_index_2 < rwlock_max);
rwlock= &rwlock_array[m_pos.m_index_2];
if (rwlock->m_lock.is_populated())
{
make_rwlock_row(rwlock);
return 0;
}
break;
case pos_all_instr::VIEW_COND:
DBUG_ASSERT(m_pos.m_index_2 < cond_max);
cond= &cond_array[m_pos.m_index_2];
if (cond->m_lock.is_populated())
{
make_cond_row(cond);
return 0;
}
break;
case pos_all_instr::VIEW_FILE:
DBUG_ASSERT(m_pos.m_index_2 < file_max);
file= &file_array[m_pos.m_index_2];
if (file->m_lock.is_populated())
{
make_file_row(file);
return 0;
}
break;
case pos_all_instr::VIEW_SOCKET:
DBUG_ASSERT(m_pos.m_index_2 < socket_max);
socket= &socket_array[m_pos.m_index_2];
if (socket->m_lock.is_populated())
{
make_socket_row(socket);
return 0;
}
break;
}
return HA_ERR_RECORD_DELETED;
}
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