Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 177 insertions, 0 deletions

diff --git a/storage/perfschema/table_performance_timers.cc b/storage/perfschema/table_performance_timers.cc
new file mode 100644
index 00000000..1c1d9c5a
--- /dev/null
+++ b/storage/perfschema/table_performance_timers.cc
@@ -0,0 +1,177 @@
+/* Copyright (c) 2008, 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, version 2.0,
+  as published by the Free Software Foundation.
+
+  This program is also distributed with certain software (including
+  but not limited to OpenSSL) that is licensed under separate terms,
+  as designated in a particular file or component or in included license
+  documentation.  The authors of MySQL hereby grant you an additional
+  permission to link the program and your derivative works with the
+  separately licensed software that they have included with MySQL.
+
+  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, version 2.0, 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, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/**
+  @file storage/perfschema/table_performance_timers.cc
+  Table PERFORMANCE_TIMERS (implementation).
+*/
+
+#include "my_global.h"
+#include "my_thread.h"
+#include "table_performance_timers.h"
+#include "pfs_timer.h"
+#include "pfs_global.h"
+#include "field.h"
+
+THR_LOCK table_performance_timers::m_table_lock;
+
+PFS_engine_table_share
+table_performance_timers::m_share=
+{
+  { C_STRING_WITH_LEN("performance_timers") },
+  &pfs_readonly_acl,
+  table_performance_timers::create,
+  NULL, /* write_row */
+  NULL, /* delete_all_rows */
+  table_performance_timers::get_row_count,
+  sizeof(PFS_simple_index), /* ref length */
+  &m_table_lock,
+  { C_STRING_WITH_LEN("CREATE TABLE performance_timers("
+                      "TIMER_NAME ENUM ('CYCLE', 'NANOSECOND', 'MICROSECOND', 'MILLISECOND', 'TICK') not null,"
+                      "TIMER_FREQUENCY BIGINT,"
+                      "TIMER_RESOLUTION BIGINT,"
+                      "TIMER_OVERHEAD BIGINT)") },
+  false  /* perpetual */
+};
+
+PFS_engine_table* table_performance_timers::create(void)
+{
+  return new table_performance_timers();
+}
+
+ha_rows
+table_performance_timers::get_row_count(void)
+{
+  return COUNT_TIMER_NAME;
+}
+
+table_performance_timers::table_performance_timers()
+  : PFS_engine_table(&m_share, &m_pos),
+    m_row(NULL), m_pos(0), m_next_pos(0)
+{
+  int index;
+
+  index= (int)TIMER_NAME_CYCLE - FIRST_TIMER_NAME;
+  m_data[index].m_timer_name= TIMER_NAME_CYCLE;
+  m_data[index].m_info= sys_timer_info.cycles;
+
+  index= (int)TIMER_NAME_NANOSEC - FIRST_TIMER_NAME;
+  m_data[index].m_timer_name= TIMER_NAME_NANOSEC;
+  m_data[index].m_info= sys_timer_info.nanoseconds;
+
+  index= (int)TIMER_NAME_MICROSEC - FIRST_TIMER_NAME;
+  m_data[index].m_timer_name= TIMER_NAME_MICROSEC;
+  m_data[index].m_info= sys_timer_info.microseconds;
+
+  index= (int)TIMER_NAME_MILLISEC - FIRST_TIMER_NAME;
+  m_data[index].m_timer_name= TIMER_NAME_MILLISEC;
+  m_data[index].m_info= sys_timer_info.milliseconds;
+
+  index= (int)TIMER_NAME_TICK - FIRST_TIMER_NAME;
+  m_data[index].m_timer_name= TIMER_NAME_TICK;
+  m_data[index].m_info= sys_timer_info.ticks;
+}
+
+void table_performance_timers::reset_position(void)
+{
+  m_pos.m_index= 0;
+  m_next_pos.m_index= 0;
+}
+
+int table_performance_timers::rnd_next(void)
+{
+  int result;
+
+  m_pos.set_at(&m_next_pos);
+
+  if (m_pos.m_index < COUNT_TIMER_NAME)
+  {
+    m_row= &m_data[m_pos.m_index];
+    m_next_pos.set_after(&m_pos);
+    result= 0;
+  }
+  else
+  {
+    m_row= NULL;
+    result= HA_ERR_END_OF_FILE;
+  }
+
+  return result;
+}
+
+int table_performance_timers::rnd_pos(const void *pos)
+{
+  set_position(pos);
+  DBUG_ASSERT(m_pos.m_index < COUNT_TIMER_NAME);
+  m_row= &m_data[m_pos.m_index];
+  return 0;
+}
+
+int table_performance_timers::read_row_values(TABLE *table,
+                                              unsigned char *buf,
+                                              Field **fields,
+                                              bool read_all)
+{
+  Field *f;
+
+  DBUG_ASSERT(m_row);
+
+  /* Set the null bits */
+  DBUG_ASSERT(table->s->null_bytes == 1);
+  buf[0]= 0;
+
+  for (; (f= *fields) ; fields++)
+  {
+    if (read_all || bitmap_is_set(table->read_set, f->field_index))
+    {
+      switch(f->field_index)
+      {
+      case 0: /* TIMER_NAME */
+        set_field_enum(f, m_row->m_timer_name);
+        break;
+      case 1: /* TIMER_FREQUENCY */
+        if (m_row->m_info.routine != 0)
+          set_field_ulonglong(f, m_row->m_info.frequency);
+        else
+          f->set_null();
+        break;
+      case 2: /* TIMER_RESOLUTION */
+        if (m_row->m_info.routine != 0)
+          set_field_ulonglong(f, m_row->m_info.resolution);
+        else
+          f->set_null();
+        break;
+      case 3: /* TIMER_OVERHEAD */
+        if (m_row->m_info.routine != 0)
+          set_field_ulonglong(f, m_row->m_info.overhead);
+        else
+          f->set_null();
+        break;
+      default:
+        DBUG_ASSERT(false);
+      }
+    }
+  }
+
+  return 0;
+}
+