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-rw-r--r--storage/perfschema/pfs_prepared_stmt.cc145
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+/* Copyright (c) 2014, 2017, 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, Suite 500, Boston, MA 02110-1335 USA */
+
+/**
+ @file storage/perfschema/pfs_prepared_stmt.cc
+ Prepared Statement data structures (implementation).
+*/
+
+/*
+ This code needs extra visibility in the lexer structures
+*/
+
+#include "my_global.h"
+#include "my_sys.h"
+#include "pfs_instr.h"
+#include "pfs_prepared_stmt.h"
+#include "pfs_global.h"
+#include "sql_string.h"
+#include "pfs_buffer_container.h"
+#include <string.h>
+
+/**
+ Initialize table PREPARED_STATEMENTS_INSTANCE.
+ @param param performance schema sizing
+*/
+int init_prepared_stmt(const PFS_global_param *param)
+{
+ if (global_prepared_stmt_container.init(param->m_prepared_stmt_sizing))
+ return 1;
+
+ reset_prepared_stmt_instances();
+ return 0;
+}
+
+/** Cleanup table PREPARED_STATEMENTS_INSTANCE. */
+void cleanup_prepared_stmt(void)
+{
+ global_prepared_stmt_container.cleanup();
+}
+
+void PFS_prepared_stmt::reset_data()
+{
+ m_prepare_stat.reset();
+ m_reprepare_stat.reset();
+ m_execute_stat.reset();
+}
+
+static void fct_reset_prepared_stmt_instances(PFS_prepared_stmt *pfs)
+{
+ pfs->reset_data();
+}
+
+void reset_prepared_stmt_instances()
+{
+ global_prepared_stmt_container.apply_all(fct_reset_prepared_stmt_instances);
+}
+
+PFS_prepared_stmt*
+create_prepared_stmt(void *identity,
+ PFS_thread *thread, PFS_program *pfs_program,
+ PFS_events_statements *pfs_stmt, uint stmt_id,
+ const char* stmt_name, uint stmt_name_length)
+{
+ PFS_prepared_stmt *pfs= NULL;
+ pfs_dirty_state dirty_state;
+
+ /* Create a new record in prepared stmt stat array. */
+ pfs= global_prepared_stmt_container.allocate(& dirty_state);
+ if (pfs != NULL)
+ {
+ /* Reset the stats. */
+ pfs->reset_data();
+ /* Do the assignments. */
+ pfs->m_identity= identity;
+
+ pfs->m_sqltext_length= 0;
+
+ if (stmt_name != NULL)
+ {
+ pfs->m_stmt_name_length= stmt_name_length;
+ if (pfs->m_stmt_name_length > PS_NAME_LENGTH)
+ pfs->m_stmt_name_length= PS_NAME_LENGTH;
+ strncpy(pfs->m_stmt_name, stmt_name, pfs->m_stmt_name_length);
+ }
+ else
+ pfs->m_stmt_name_length= 0;
+
+ pfs->m_stmt_id= stmt_id;
+ pfs->m_owner_thread_id= thread->m_thread_internal_id;
+
+ /* If this statement prepare is called from a SP. */
+ if (pfs_program)
+ {
+ pfs->m_owner_object_type= pfs_program->m_type;
+ strncpy(pfs->m_owner_object_schema, pfs_program->m_schema_name, pfs_program->m_schema_name_length);
+ pfs->m_owner_object_schema_length= pfs_program->m_schema_name_length;
+ strncpy(pfs->m_owner_object_name, pfs_program->m_object_name, pfs_program->m_object_name_length);
+ pfs->m_owner_object_name_length= pfs_program->m_object_name_length;
+ }
+ else
+ {
+ pfs->m_owner_object_type= NO_OBJECT_TYPE;
+ pfs->m_owner_object_schema_length= 0;
+ pfs->m_owner_object_name_length= 0;
+ }
+
+ if (pfs_stmt)
+ {
+ if (pfs_program)
+ pfs->m_owner_event_id= pfs_stmt->m_nesting_event_id;
+ else
+ pfs->m_owner_event_id= pfs_stmt->m_event_id;
+ }
+
+ /* Insert this record. */
+ pfs->m_lock.dirty_to_allocated(& dirty_state);
+ }
+
+ return pfs;
+}
+
+void delete_prepared_stmt(PFS_prepared_stmt *pfs)
+{
+ global_prepared_stmt_container.deallocate(pfs);
+ return;
+}