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Diffstat (limited to 'sql/sp_rcontext.h')
-rw-r--r-- | sql/sp_rcontext.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/sql/sp_rcontext.h b/sql/sp_rcontext.h new file mode 100644 index 00000000000..78485fdd090 --- /dev/null +++ b/sql/sp_rcontext.h @@ -0,0 +1,95 @@ +/* -*- C++ -*- */ +/* Copyright (C) 2002 MySQL AB + + 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; either version 2 of the License, or + (at your option) any later version. + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#ifndef _SP_RCONTEXT_H_ +#define _SP_RCONTEXT_H_ + +class sp_rcontext : public Sql_alloc +{ + sp_rcontext(const sp_rcontext &); /* Prevent use of these */ + void operator=(sp_rcontext &); + + public: + + sp_rcontext(uint size) + : m_count(0), m_size(size), m_result(NULL) + { + m_frame = (Item **)sql_alloc(size * sizeof(Item*)); + m_outs = (int *)sql_alloc(size * sizeof(int)); + } + + ~sp_rcontext() + { + // Not needed? + //sql_element_free(m_frame); + } + + inline void + push_item(Item *i) + { + if (m_count < m_size) + m_frame[m_count++] = i; + } + + inline void + set_item(uint idx, Item *i) + { + if (idx < m_count) + m_frame[idx] = i; + } + + inline Item * + get_item(uint idx) + { + return m_frame[idx]; + } + + inline void + set_oindex(uint idx, int oidx) + { + m_outs[idx] = oidx; + } + + inline int + get_oindex(uint idx) + { + return m_outs[idx]; + } + + inline void + set_result(Item *it) + { + m_result= it; + } + + inline Item * + get_result() + { + return m_result; + } + +private: + + uint m_count; + uint m_size; + Item **m_frame; + int *m_outs; + Item *m_result; // For FUNCTIONs + +}; // class sp_rcontext : public Sql_alloc + +#endif /* _SP_RCONTEXT_H_ */ |