1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_cppu.hxx" 30 31 #include "osl/mutex.hxx" 32 #include "osl/thread.h" 33 34 #include "cppu/helper/purpenv/Environment.hxx" 35 #include "cppu/helper/purpenv/Mapping.hxx" 36 37 38 #ifdef debug 39 # define LOG_LIFECYCLE_UnsafeBridge 40 #endif 41 42 #ifdef LOG_LIFECYCLE_UnsafeBridge 43 # include <iostream> 44 # define LOG_LIFECYCLE_UnsafeBridge_emit(x) x 45 46 #else 47 # define LOG_LIFECYCLE_UnsafeBridge_emit(x) 48 49 #endif 50 51 52 class SAL_DLLPRIVATE UnsafeBridge : public cppu::Enterable 53 { 54 osl::Mutex m_mutex; 55 sal_Int32 m_count; 56 oslThreadIdentifier m_threadId; 57 58 virtual ~UnsafeBridge(void); 59 60 public: 61 explicit UnsafeBridge(void); 62 63 virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam); 64 virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam); 65 66 virtual void v_enter(void); 67 virtual void v_leave(void); 68 69 virtual int v_isValid(rtl::OUString * pReason); 70 }; 71 72 UnsafeBridge::UnsafeBridge(void) 73 : m_count (0), 74 m_threadId(0) 75 { 76 LOG_LIFECYCLE_UnsafeBridge_emit(fprintf(stderr, "LIFE: %s -> %p\n", "UnsafeBridge::UnsafeBridge(uno_Environment * pEnv)", this)); 77 } 78 79 UnsafeBridge::~UnsafeBridge(void) 80 { 81 LOG_LIFECYCLE_UnsafeBridge_emit(fprintf(stderr, "LIFE: %s -> %p\n", "UnsafeBridge::~UnsafeBridge(void)", this)); 82 83 OSL_ASSERT(m_count >= 0); 84 } 85 86 void UnsafeBridge::v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam) 87 { 88 enter(); 89 pCallee(pParam); 90 leave(); 91 } 92 93 void UnsafeBridge::v_callOut_v(uno_EnvCallee * pCallee, va_list * pParam) 94 { 95 OSL_ASSERT(m_count > 0); 96 97 -- m_count; 98 pCallee(pParam); 99 ++ m_count; 100 101 if (!m_threadId) 102 m_threadId = osl_getThreadIdentifier(NULL); 103 } 104 105 void UnsafeBridge::v_enter(void) 106 { 107 m_mutex.acquire(); 108 109 OSL_ASSERT(m_count >= 0); 110 111 if (m_count == 0) 112 m_threadId = osl_getThreadIdentifier(NULL); 113 114 ++ m_count; 115 } 116 117 void UnsafeBridge::v_leave(void) 118 { 119 OSL_ASSERT(m_count > 0); 120 121 -- m_count; 122 if (!m_count) 123 m_threadId = 0; 124 125 126 m_mutex.release(); 127 } 128 129 int UnsafeBridge::v_isValid(rtl::OUString * pReason) 130 { 131 int result = 1; 132 133 result = m_count > 0; 134 if (!result) 135 *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("not entered")); 136 137 else 138 { 139 result = m_threadId == osl_getThreadIdentifier(NULL); 140 141 if (!result) 142 *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("wrong thread")); 143 } 144 145 if (result) 146 *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("OK")); 147 148 return result; 149 } 150 151 extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_initEnvironment(uno_Environment * pEnv) 152 SAL_THROW_EXTERN_C() 153 { 154 cppu::helper::purpenv::Environment_initWithEnterable(pEnv, new UnsafeBridge()); 155 } 156 157 extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_ext_getMapping(uno_Mapping ** ppMapping, 158 uno_Environment * pFrom, 159 uno_Environment * pTo ) 160 { 161 cppu::helper::purpenv::createMapping(ppMapping, pFrom, pTo); 162 } 163 164