Warning, file /libraries/qca/src/botantools/botan/mutex.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).
0001 /* 0002 Copyright (C) 1999-2007 The Botan Project. All rights reserved. 0003 0004 Redistribution and use in source and binary forms, for any use, with or without 0005 modification, is permitted provided that the following conditions are met: 0006 0007 1. Redistributions of source code must retain the above copyright notice, this 0008 list of conditions, and the following disclaimer. 0009 0010 2. Redistributions in binary form must reproduce the above copyright notice, 0011 this list of conditions, and the following disclaimer in the documentation 0012 and/or other materials provided with the distribution. 0013 0014 THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) "AS IS" AND ANY EXPRESS OR IMPLIED 0015 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 0016 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED. 0017 0018 IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE FOR ANY DIRECT, 0019 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 0020 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0021 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 0022 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 0023 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 0024 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0025 */ 0026 // LICENSEHEADER_END 0027 namespace QCA { // WRAPNS_LINE 0028 /************************************************* 0029 * Mutex Source File * 0030 * (C) 1999-2007 The Botan Project * 0031 *************************************************/ 0032 0033 } // WRAPNS_LINE 0034 #include <cstdlib> 0035 namespace QCA { // WRAPNS_LINE 0036 } // WRAPNS_LINE 0037 #include <botan/mutex.h> 0038 namespace QCA { // WRAPNS_LINE 0039 #ifndef BOTAN_NO_LIBSTATE 0040 } // WRAPNS_LINE 0041 #include <botan/libstate.h> 0042 namespace QCA { // WRAPNS_LINE 0043 #endif 0044 0045 namespace Botan { 0046 0047 /************************************************* 0048 * Mutex_Holder Constructor * 0049 *************************************************/ 0050 Mutex_Holder::Mutex_Holder(Mutex *m) 0051 : mux(m) 0052 { 0053 if (!mux) 0054 throw Invalid_Argument("Mutex_Holder: Argument was NULL"); 0055 mux->lock(); 0056 } 0057 0058 /************************************************* 0059 * Mutex_Holder Destructor * 0060 *************************************************/ 0061 Mutex_Holder::~Mutex_Holder() 0062 { 0063 mux->unlock(); 0064 } 0065 0066 #ifndef BOTAN_NO_LIBSTATE 0067 /************************************************* 0068 * Named_Mutex_Holder Constructor * 0069 *************************************************/ 0070 Named_Mutex_Holder::Named_Mutex_Holder(const std::string &name) 0071 : mutex_name(name) 0072 { 0073 global_state().get_named_mutex(mutex_name)->lock(); 0074 } 0075 0076 /************************************************* 0077 * Named_Mutex_Holder Destructor * 0078 *************************************************/ 0079 Named_Mutex_Holder::~Named_Mutex_Holder() 0080 { 0081 global_state().get_named_mutex(mutex_name)->unlock(); 0082 } 0083 #endif 0084 0085 /************************************************* 0086 * Default Mutex Factory * 0087 *************************************************/ 0088 #ifdef BOTAN_FIX_GDB 0089 namespace { 0090 #else 0091 Mutex *Default_Mutex_Factory::make() 0092 { 0093 #endif 0094 class Default_Mutex : public Mutex 0095 { 0096 public: 0097 class Mutex_State_Error : public Internal_Error 0098 { 0099 public: 0100 Mutex_State_Error(const std::string &where) 0101 : Internal_Error("Default_Mutex::" + where + ": " + "Mutex is already " + where + "ed") 0102 { 0103 } 0104 }; 0105 0106 void lock() override 0107 { 0108 if (locked) 0109 throw Mutex_State_Error("lock"); 0110 locked = true; 0111 } 0112 0113 void unlock() override 0114 { 0115 if (!locked) 0116 throw Mutex_State_Error("unlock"); 0117 locked = false; 0118 } 0119 0120 Default_Mutex() 0121 { 0122 locked = false; 0123 } 0124 0125 private: 0126 bool locked; 0127 }; 0128 0129 #ifdef BOTAN_FIX_GDB 0130 } // end unnamed namespace 0131 Mutex *Default_Mutex_Factory::make() 0132 { 0133 #endif 0134 0135 return new Default_Mutex; 0136 } 0137 0138 } 0139 } // WRAPNS_LINE