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76b037dc42
various known problems, but good enough for a checkpoint commit. mysql-test/r/sp.result: New tests for invoking simple FUNCTIONs. mysql-test/t/sp.test: New tests for invoking simple FUNCTIONs. sql/item_func.cc: New Item_func_sp for stored FUNCTIONs. sql/item_func.h: New Item_func_sp for stored FUNCTIONs. sql/sp.cc: Close mysql.proc table earlier so recursive find_function calls work. Added temporary sp_function_exists() function for checking without parsing. sql/sp.h: Added temporary sp_function_exists() function for checking without parsing. sql/sp_head.cc: New code for executing a FUNCTION. (And reworked some of the old code in the process.) sql/sp_head.h: New code for executing a FUNCTION. sql/sp_rcontext.h: Added result slot for FUNCTIONs. sql/sql_lex.cc: Added check for stored FUNCTION, analogous to UDFs. sql/sql_parse.cc: sp_head::execute was renamed into execute_procedure. sql/sql_yacc.yy: Added parsing of stored FUNCTION invocation and code generation for RETURN statement.
95 lines
1.9 KiB
C++
95 lines
1.9 KiB
C++
/* -*- C++ -*- */
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/* Copyright (C) 2002 MySQL AB
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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 as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef _SP_RCONTEXT_H_
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#define _SP_RCONTEXT_H_
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class sp_rcontext : public Sql_alloc
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{
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sp_rcontext(const sp_rcontext &); /* Prevent use of these */
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void operator=(sp_rcontext &);
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public:
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sp_rcontext(uint size)
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: m_count(0), m_size(size), m_result(NULL)
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{
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m_frame = (Item **)sql_alloc(size * sizeof(Item*));
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m_outs = (int *)sql_alloc(size * sizeof(int));
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}
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~sp_rcontext()
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{
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// Not needed?
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//sql_element_free(m_frame);
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}
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inline void
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push_item(Item *i)
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{
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if (m_count < m_size)
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m_frame[m_count++] = i;
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}
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inline void
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set_item(uint idx, Item *i)
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{
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if (idx < m_count)
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m_frame[idx] = i;
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}
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inline Item *
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get_item(uint idx)
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{
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return m_frame[idx];
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}
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inline void
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set_oindex(uint idx, int oidx)
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{
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m_outs[idx] = oidx;
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}
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inline int
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get_oindex(uint idx)
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{
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return m_outs[idx];
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}
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inline void
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set_result(Item *it)
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{
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m_result= it;
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}
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inline Item *
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get_result()
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{
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return m_result;
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}
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private:
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uint m_count;
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uint m_size;
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Item **m_frame;
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int *m_outs;
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Item *m_result; // For FUNCTIONs
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}; // class sp_rcontext : public Sql_alloc
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#endif /* _SP_RCONTEXT_H_ */
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