63 lines
2.5 KiB
C++
63 lines
2.5 KiB
C++
/* Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "my_dbug.h"
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#include "my_loglevel.h"
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#include "mysql/components/services/log_builtins.h"
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#include "mysqld_error.h"
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#include "sql/current_thd.h"
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#include "sql/log.h"
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#include "sql/sql_class.h"
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#include "sql/sql_error.h"
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extern "C" void sql_alloc_error_handler(void) {
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THD *thd = current_thd;
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if (thd && !thd->is_error()) {
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/*
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This thread is Out Of Memory.
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An OOM condition is a fatal error. It should not be caught by error
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handlers in stored procedures.
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Recording this SQL condition in the condition area could cause more
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memory allocations, which in turn could raise more OOM conditions,
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causing recursion in the error handling code itself. As a result,
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my_error() should not be invoked, and the thread Diagnostics Area is
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set to an error status directly.
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Note that Diagnostics_area::set_error_status() is safe, since it does
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not call any memory allocation routines.
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The visible result for a client application will be:
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- a query fails with an ER_OUT_OF_RESOURCES error, returned in the
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error packet.
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- SHOW ERROR/SHOW WARNINGS may be empty.
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*/
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thd->get_stmt_da()->set_error_status(thd, ER_OUT_OF_RESOURCES);
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}
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/* Skip writing to the error log to avoid mtr complaints */
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DBUG_EXECUTE_IF("simulate_out_of_memory", return;);
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LogErr(ERROR_LEVEL, ER_SERVER_OUT_OF_RESOURCES);
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}
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