diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
commit | a175314c3e5827eb193872241446f2f8f5c9d33c (patch) | |
tree | cd3d60ca99ae00829c52a6ca79150a5b6e62528b /sql/sql_signal.h | |
parent | Initial commit. (diff) | |
download | mariadb-10.5-upstream.tar.xz mariadb-10.5-upstream.zip |
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sql/sql_signal.h')
-rw-r--r-- | sql/sql_signal.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/sql/sql_signal.h b/sql/sql_signal.h new file mode 100644 index 00000000..433cee21 --- /dev/null +++ b/sql/sql_signal.h @@ -0,0 +1,126 @@ +/* Copyright (c) 2008 MySQL AB, 2009 Sun Microsystems, Inc. + Use is subject to license terms. + + 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 St, Fifth Floor, Boston, MA 02110-1335 USA */ + +#ifndef SQL_SIGNAL_H +#define SQL_SIGNAL_H + +/** + Sql_cmd_common_signal represents the common properties of the + SIGNAL and RESIGNAL statements. +*/ +class Sql_cmd_common_signal : public Sql_cmd +{ +protected: + /** + Constructor. + @param cond the condition signaled if any, or NULL. + @param set collection of signal condition item assignments. + */ + Sql_cmd_common_signal(const sp_condition_value *cond, + const Set_signal_information& set) + : Sql_cmd(), + m_cond(cond), + m_set_signal_information(set) + {} + + virtual ~Sql_cmd_common_signal() + {} + + /** + Evaluate each signal condition items for this statement. + @param thd the current thread. + @param cond the condition to update. + @return 0 on success. + */ + int eval_signal_informations(THD *thd, Sql_condition *cond); + + /** + Raise a SQL condition. + @param thd the current thread. + @param cond the condition to raise. + @return false on success. + */ + bool raise_condition(THD *thd, Sql_condition *cond); + + /** + The condition to signal or resignal. + This member is optional and can be NULL (RESIGNAL). + */ + const sp_condition_value *m_cond; + + /** + Collection of 'SET item = value' assignments in the + SIGNAL/RESIGNAL statement. + */ + Set_signal_information m_set_signal_information; +}; + +/** + Sql_cmd_signal represents a SIGNAL statement. +*/ +class Sql_cmd_signal : public Sql_cmd_common_signal +{ +public: + /** + Constructor, used to represent a SIGNAL statement. + @param cond the SQL condition to signal (required). + @param set the collection of signal information to signal. + */ + Sql_cmd_signal(const sp_condition_value *cond, + const Set_signal_information& set) + : Sql_cmd_common_signal(cond, set) + {} + + virtual ~Sql_cmd_signal() + {} + + virtual enum_sql_command sql_command_code() const + { + return SQLCOM_SIGNAL; + } + + virtual bool execute(THD *thd); +}; + +/** + Sql_cmd_resignal represents a RESIGNAL statement. +*/ +class Sql_cmd_resignal : public Sql_cmd_common_signal +{ +public: + /** + Constructor, used to represent a RESIGNAL statement. + @param cond the SQL condition to resignal (optional, may be NULL). + @param set the collection of signal information to resignal. + */ + Sql_cmd_resignal(const sp_condition_value *cond, + const Set_signal_information& set) + : Sql_cmd_common_signal(cond, set) + {} + + virtual ~Sql_cmd_resignal() + {} + + virtual enum_sql_command sql_command_code() const + { + return SQLCOM_RESIGNAL; + } + + virtual bool execute(THD *thd); +}; + +#endif + |