diff options
Diffstat (limited to 'ndb/src/kernel/vm/SectionReader.cpp')
-rw-r--r-- | ndb/src/kernel/vm/SectionReader.cpp | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/ndb/src/kernel/vm/SectionReader.cpp b/ndb/src/kernel/vm/SectionReader.cpp deleted file mode 100644 index dd474a49e50..00000000000 --- a/ndb/src/kernel/vm/SectionReader.cpp +++ /dev/null @@ -1,143 +0,0 @@ -/* Copyright (C) 2003 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 */ - -#include <SectionReader.hpp> -#include <TransporterDefinitions.hpp> -#include "LongSignal.hpp" - -#if 0 - Uint32 m_len; - class SectionSegmentPool & m_pool; - class SectionSegment * m_head; - class SectionSegment * m_currentPos; -#endif - -SectionReader::SectionReader -(struct SegmentedSectionPtr & ptr, class SectionSegmentPool & pool) - : m_pool(pool) -{ - if(ptr.p == 0){ - m_pos = 0; - m_len = 0; - m_head = 0; - m_currentSegment = 0; - } else { - m_pos = 0; - m_len = ptr.p->m_sz; - m_head = ptr.p; - m_currentSegment = ptr.p; - } -} - -void -SectionReader::reset(){ - m_pos = 0; - m_currentSegment = m_head; -} - -bool -SectionReader::step(Uint32 len){ - if(m_pos + len >= m_len) { - m_pos++; - return false; - } - while(len > SectionSegment::DataLength){ - m_currentSegment = m_pool.getPtr(m_currentSegment->m_nextSegment); - - len -= SectionSegment::DataLength; - m_pos += SectionSegment::DataLength; - } - - Uint32 ind = m_pos % SectionSegment::DataLength; - while(len > 0){ - len--; - m_pos++; - - ind++; - if(ind == SectionSegment::DataLength){ - ind = 0; - m_currentSegment = m_pool.getPtr(m_currentSegment->m_nextSegment); - } - } - return true; -} - -bool -SectionReader::getWord(Uint32 * dst){ - if (peekWord(dst)) { - step(1); - return true; - } - return false; -} - -bool -SectionReader::peekWord(Uint32 * dst) const { - if(m_pos < m_len){ - Uint32 ind = m_pos % SectionSegment::DataLength; - * dst = m_currentSegment->theData[ind]; - return true; - } - return false; -} - -bool -SectionReader::peekWords(Uint32 * dst, Uint32 len) const { - if(m_pos + len > m_len) - return false; - - Uint32 ind = (m_pos % SectionSegment::DataLength); - Uint32 left = SectionSegment::DataLength - ind; - SectionSegment * p = m_currentSegment; - - while(len > left){ - memcpy(dst, &p->theData[ind], 4 * left); - dst += left; - len -= left; - ind = 0; - left = SectionSegment::DataLength; - p = m_pool.getPtr(p->m_nextSegment); - } - - memcpy(dst, &p->theData[ind], 4 * len); - return true; -} - -bool -SectionReader::getWords(Uint32 * dst, Uint32 len){ - if(m_pos + len > m_len) - return false; - - Uint32 ind = (m_pos % SectionSegment::DataLength); - Uint32 left = SectionSegment::DataLength - ind; - SectionSegment * p = m_currentSegment; - - while(len > left){ - memcpy(dst, &p->theData[ind], 4 * left); - dst += left; - len -= left; - ind = 0; - left = SectionSegment::DataLength; - p = m_pool.getPtr(p->m_nextSegment); - } - - memcpy(dst, &p->theData[ind], 4 * len); - - m_pos += len; - m_currentSegment = p; - return true; -} - |