00001 /******************************************************************************* 00002 00003 @file ConduitStyle.d 00004 00005 Copyright (C) 2004 Kris Bell 00006 00007 This software is provided 'as-is', without any express or implied 00008 warranty. In no event will the authors be held liable for damages 00009 of any kind arising from the use of this software. 00010 00011 Permission is hereby granted to anyone to use this software for any 00012 purpose, including commercial applications, and to alter it and/or 00013 redistribute it freely, subject to the following restrictions: 00014 00015 1. The origin of this software must not be misrepresented; you must 00016 not claim that you wrote the original software. If you use this 00017 software in a product, an acknowledgment within documentation of 00018 said product would be appreciated but is not required. 00019 00020 2. Altered source versions must be plainly marked as such, and must 00021 not be misrepresented as being the original software. 00022 00023 3. This notice may not be removed or altered from any distribution 00024 of the source. 00025 00026 00027 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 00028 00029 00030 @version Initial version, March 2004 00031 @author Kris 00032 00033 00034 *******************************************************************************/ 00035 00036 module mango.io.ConduitStyle; 00037 00038 00039 /******************************************************************************* 00040 00041 Defines how a Conduit should be opened. This is typically subsumed 00042 by a subclass. 00043 00044 *******************************************************************************/ 00045 00046 class ConduitStyle 00047 { 00048 /*********************************************************************** 00049 00050 Declare the basic styles for a Conduit 00051 00052 ***********************************************************************/ 00053 00054 enum Access { 00055 Read = 0x01, 00056 Write = 0x02, 00057 ReadWrite = 0x03, 00058 }; 00059 00060 private Access m_access; 00061 00062 /*********************************************************************** 00063 00064 Expose common instances of ConduitStyle 00065 00066 ***********************************************************************/ 00067 00068 static ConduitStyle Read, 00069 Write, 00070 ReadWrite; 00071 00072 /*********************************************************************** 00073 00074 Setup common instances of ConduitStyle 00075 00076 ***********************************************************************/ 00077 00078 static this () 00079 { 00080 Read = new ConduitStyle (Access.Read); 00081 Write = new ConduitStyle (Access.Write); 00082 ReadWrite = new ConduitStyle (Access.ReadWrite); 00083 } 00084 00085 /*********************************************************************** 00086 00087 Construct a ConduitStyle with the given access 00088 00089 ***********************************************************************/ 00090 00091 this (Access access) 00092 { 00093 m_access = access; 00094 } 00095 00096 /*********************************************************************** 00097 00098 Return the access attribute of this ConduitStyle 00099 00100 ***********************************************************************/ 00101 00102 Access access() 00103 { 00104 return m_access; 00105 } 00106 }