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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:04:16 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:04:16 +0000 |
commit | a68fb2d8219f6bccc573009600e9f23e89226a5e (patch) | |
tree | d742d35d14ae816e99293d2b01face30e9f3a46b /storage/perfschema/cursor_by_thread.h | |
parent | Initial commit. (diff) | |
download | mariadb-10.6-upstream.tar.xz mariadb-10.6-upstream.zip |
Adding upstream version 1:10.6.11.upstream/1%10.6.11upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'storage/perfschema/cursor_by_thread.h')
-rw-r--r-- | storage/perfschema/cursor_by_thread.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/storage/perfschema/cursor_by_thread.h b/storage/perfschema/cursor_by_thread.h new file mode 100644 index 00000000..910291c2 --- /dev/null +++ b/storage/perfschema/cursor_by_thread.h @@ -0,0 +1,68 @@ +/* Copyright (c) 2011, 2022, Oracle and/or its affiliates. + + 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */ + +#ifndef CURSOR_BY_THREAD_H +#define CURSOR_BY_THREAD_H + +/** + @file storage/perfschema/cursor_by_thread.h + Cursor CURSOR_BY_THREAD (declarations). +*/ + +#include "pfs_engine_table.h" +#include "pfs_instr.h" +#include "table_helper.h" + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** Cursor CURSOR_BY_THREAD. */ +class cursor_by_thread : public PFS_engine_table +{ +public: + static ha_rows get_row_count(); + + virtual int rnd_next(); + virtual int rnd_pos(const void *pos); + virtual void reset_position(void); + +protected: + cursor_by_thread(const PFS_engine_table_share *share); + +public: + ~cursor_by_thread() + {} + +protected: + virtual void make_row(PFS_thread *thread)= 0; + +private: + /** Current position. */ + PFS_simple_index m_pos; + /** Next position. */ + PFS_simple_index m_next_pos; +}; + +/** @} */ +#endif |