00001 /******************************************************************************* 00002 * Copyright (C) 2001-2004 Vintela, Inc. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions are met: 00006 * 00007 * - Redistributions of source code must retain the above copyright notice, 00008 * this list of conditions and the following disclaimer. 00009 * 00010 * - Redistributions in binary form must reproduce the above copyright notice, 00011 * this list of conditions and the following disclaimer in the documentation 00012 * and/or other materials provided with the distribution. 00013 * 00014 * - Neither the name of Vintela, Inc. nor the names of its 00015 * contributors may be used to endorse or promote products derived from this 00016 * software without specific prior written permission. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 00019 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00020 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL Vintela, Inc. OR THE CONTRIBUTORS 00022 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00023 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00024 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00025 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00026 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00027 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00028 * POSSIBILITY OF SUCH DAMAGE. 00029 *******************************************************************************/ 00030 00036 #ifndef OW_SELECT_HPP_ 00037 #define OW_SELECT_HPP_ 00038 #include "OW_config.h" 00039 #include "OW_Types.hpp" 00040 #include "OW_Array.hpp" 00041 #include "OW_SelectableIFC.hpp" 00042 00043 // The classes and functions defined in this file are not meant for general 00044 // use, they are internal implementation details. They may change at any time. 00045 00046 namespace OW_NAMESPACE 00047 { 00048 00049 typedef Array<Select_t> SelectTypeArray; 00050 namespace Select 00051 { 00055 const int SELECT_TIMEOUT = -2; 00059 const int SELECT_ERROR = -1; 00063 const int SELECT_INTERRUPTED = -3; 00067 const int SELECT_NOT_IMPLEMENTED = -4; 00071 const UInt32 INFINITE_TIMEOUT = ~0U; 00072 00086 OW_COMMON_API int select(const SelectTypeArray& selarray, UInt32 ms = INFINITE_TIMEOUT); 00087 00088 struct SelectObject 00089 { 00090 SelectObject(Select_t s_) 00091 : s(s_) 00092 , waitForRead(false) 00093 , waitForWrite(false) 00094 , readAvailable(false) 00095 , writeAvailable(false) 00096 , wasError(false) 00097 { 00098 } 00099 00100 Select_t s; 00102 bool waitForRead; 00104 bool waitForWrite; 00106 bool readAvailable; 00108 bool writeAvailable; 00110 bool wasError; 00111 }; 00112 typedef Array<SelectObject> SelectObjectArray; 00113 00128 OW_COMMON_API int selectRW(SelectObjectArray& selarray, UInt32 ms = INFINITE_TIMEOUT); 00129 00130 } // end namespace Select 00131 00132 } // end namespace OW_NAMESPACE 00133 00134 #endif // OW_SELECT_HPP_