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OpenFiles.hpp
Package: mysql-4.1.16-win-src.zip [view]
Upload User: romrleung
Upload Date: 2022-05-23
Package Size: 18897k
Code Size: 3k
Category:
MySQL
Development Platform:
Visual C++
- /* 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 */
- #ifndef OPENFILES_H
- #define OPENFILES_H
- #include <Vector.hpp>
- class OpenFiles
- {
- public:
- OpenFiles(){ }
- /* Get a pointer to the file with id */
- AsyncFile* find(Uint16 id);
- /* Insert file with id */
- bool insert(AsyncFile* file, Uint16 id);
- /* Erase file with id */
- bool erase(Uint16 id);
- /* Get number of open files */
- unsigned size();
- Uint16 getId(unsigned i);
- AsyncFile* getFile(unsigned i);
- private:
- class OpenFileItem {
- public:
- OpenFileItem(): m_file(NULL), m_id(0){};
- AsyncFile* m_file;
- Uint16 m_id;
- };
- Vector<OpenFileItem> m_files;
- };
- //*****************************************************************************
- inline AsyncFile* OpenFiles::find(Uint16 id){
- for (unsigned i = 0; i < m_files.size(); i++){
- if (m_files[i].m_id == id){
- return m_files[i].m_file;
- }
- }
- return NULL;
- }
- //*****************************************************************************
- inline bool OpenFiles::erase(Uint16 id){
- for (unsigned i = 0; i < m_files.size(); i++){
- if (m_files[i].m_id == id){
- m_files.erase(i);
- return true;
- }
- }
- // Item was not found in list
- return false;
- }
- //*****************************************************************************
- inline bool OpenFiles::insert(AsyncFile* file, Uint16 id){
- // Check if file has already been opened
- for (unsigned i = 0; i < m_files.size(); i++){
- if(m_files[i].m_file == NULL)
- continue;
- if(strcmp(m_files[i].m_file->theFileName.c_str(),
- file->theFileName.c_str()) == 0)
- {
- BaseString names;
- names.assfmt("open: >%s< existing: >%s<",
- file->theFileName.c_str(),
- m_files[i].m_file->theFileName.c_str());
- ERROR_SET(fatal, AFS_ERROR_ALLREADY_OPEN, names.c_str(),
- "OpenFiles::insert()");
- }
- }
- // Insert the file into vector
- OpenFileItem openFile;
- openFile.m_id = id;
- openFile.m_file = file;
- m_files.push_back(openFile);
- return true;
- }
- //*****************************************************************************
- inline Uint16 OpenFiles::getId(unsigned i){
- return m_files[i].m_id;
- }
- //*****************************************************************************
- inline AsyncFile* OpenFiles::getFile(unsigned i){
- return m_files[i].m_file;
- }
- //*****************************************************************************
- inline unsigned OpenFiles::size(){
- return m_files.size();
- }
- #endif