1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_cppu.hxx" 26 27 #include "osl/mutex.hxx" 28 #include "osl/thread.h" 29 30 #include "cppu/helper/purpenv/Environment.hxx" 31 #include "cppu/helper/purpenv/Mapping.hxx" 32 33 34 #ifdef debug 35 # define LOG_LIFECYCLE_UnsafeBridge 36 #endif 37 38 #ifdef LOG_LIFECYCLE_UnsafeBridge 39 # include <iostream> 40 # define LOG_LIFECYCLE_UnsafeBridge_emit(x) x 41 42 #else 43 # define LOG_LIFECYCLE_UnsafeBridge_emit(x) 44 45 #endif 46 47 48 class SAL_DLLPRIVATE UnsafeBridge : public cppu::Enterable 49 { 50 osl::Mutex m_mutex; 51 sal_Int32 m_count; 52 oslThreadIdentifier m_threadId; 53 54 virtual ~UnsafeBridge(void); 55 56 public: 57 explicit UnsafeBridge(void); 58 59 virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam); 60 virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam); 61 62 virtual void v_enter(void); 63 virtual void v_leave(void); 64 65 virtual int v_isValid(rtl::OUString * pReason); 66 }; 67 68 UnsafeBridge::UnsafeBridge(void) 69 : m_count (0), 70 m_threadId(0) 71 { 72 LOG_LIFECYCLE_UnsafeBridge_emit(fprintf(stderr, "LIFE: %s -> %p\n", "UnsafeBridge::UnsafeBridge(uno_Environment * pEnv)", this)); 73 } 74 75 UnsafeBridge::~UnsafeBridge(void) 76 { 77 LOG_LIFECYCLE_UnsafeBridge_emit(fprintf(stderr, "LIFE: %s -> %p\n", "UnsafeBridge::~UnsafeBridge(void)", this)); 78 79 OSL_ASSERT(m_count >= 0); 80 } 81 82 void UnsafeBridge::v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam) 83 { 84 enter(); 85 pCallee(pParam); 86 leave(); 87 } 88 89 void UnsafeBridge::v_callOut_v(uno_EnvCallee * pCallee, va_list * pParam) 90 { 91 OSL_ASSERT(m_count > 0); 92 93 -- m_count; 94 pCallee(pParam); 95 ++ m_count; 96 97 if (!m_threadId) 98 m_threadId = osl_getThreadIdentifier(NULL); 99 } 100 101 void UnsafeBridge::v_enter(void) 102 { 103 m_mutex.acquire(); 104 105 OSL_ASSERT(m_count >= 0); 106 107 if (m_count == 0) 108 m_threadId = osl_getThreadIdentifier(NULL); 109 110 ++ m_count; 111 } 112 113 void UnsafeBridge::v_leave(void) 114 { 115 OSL_ASSERT(m_count > 0); 116 117 -- m_count; 118 if (!m_count) 119 m_threadId = 0; 120 121 122 m_mutex.release(); 123 } 124 125 int UnsafeBridge::v_isValid(rtl::OUString * pReason) 126 { 127 int result = 1; 128 129 result = m_count > 0; 130 if (!result) 131 *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("not entered")); 132 133 else 134 { 135 result = m_threadId == osl_getThreadIdentifier(NULL); 136 137 if (!result) 138 *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("wrong thread")); 139 } 140 141 if (result) 142 *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("OK")); 143 144 return result; 145 } 146 147 extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_initEnvironment(uno_Environment * pEnv) 148 SAL_THROW_EXTERN_C() 149 { 150 cppu::helper::purpenv::Environment_initWithEnterable(pEnv, new UnsafeBridge()); 151 } 152 153 extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_ext_getMapping(uno_Mapping ** ppMapping, 154 uno_Environment * pFrom, 155 uno_Environment * pTo ) 156 { 157 cppu::helper::purpenv::createMapping(ppMapping, pFrom, pTo); 158 } 159 160