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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 :
21 : #include "osl/mutex.hxx"
22 : #include "osl/thread.h"
23 :
24 : #include "cppu/helper/purpenv/Environment.hxx"
25 : #include "cppu/helper/purpenv/Mapping.hxx"
26 :
27 :
28 : #ifdef debug
29 : # define LOG_LIFECYCLE_UnsafeBridge
30 : #endif
31 :
32 : #ifdef LOG_LIFECYCLE_UnsafeBridge
33 : # include <iostream>
34 : # define LOG_LIFECYCLE_UnsafeBridge_emit(x) x
35 :
36 : #else
37 : # define LOG_LIFECYCLE_UnsafeBridge_emit(x)
38 :
39 : #endif
40 :
41 :
42 : class SAL_DLLPRIVATE UnsafeBridge : public cppu::Enterable
43 : {
44 : osl::Mutex m_mutex;
45 : sal_Int32 m_count;
46 : oslThreadIdentifier m_threadId;
47 :
48 : virtual ~UnsafeBridge(void);
49 :
50 : public:
51 : explicit UnsafeBridge(void);
52 :
53 : virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam);
54 : virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam);
55 :
56 : virtual void v_enter(void);
57 : virtual void v_leave(void);
58 :
59 : virtual int v_isValid(rtl::OUString * pReason);
60 : };
61 :
62 0 : UnsafeBridge::UnsafeBridge(void)
63 : : m_count (0),
64 0 : m_threadId(0)
65 : {
66 : LOG_LIFECYCLE_UnsafeBridge_emit(fprintf(stderr, "LIFE: %s -> %p\n", "UnsafeBridge::UnsafeBridge(uno_Environment * pEnv)", this));
67 0 : }
68 :
69 0 : UnsafeBridge::~UnsafeBridge(void)
70 : {
71 : LOG_LIFECYCLE_UnsafeBridge_emit(fprintf(stderr, "LIFE: %s -> %p\n", "UnsafeBridge::~UnsafeBridge(void)", this));
72 :
73 : OSL_ASSERT(m_count >= 0);
74 0 : }
75 :
76 0 : void UnsafeBridge::v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam)
77 : {
78 0 : enter();
79 0 : pCallee(pParam);
80 0 : leave();
81 0 : }
82 :
83 0 : void UnsafeBridge::v_callOut_v(uno_EnvCallee * pCallee, va_list * pParam)
84 : {
85 : OSL_ASSERT(m_count > 0);
86 :
87 0 : -- m_count;
88 0 : pCallee(pParam);
89 0 : ++ m_count;
90 :
91 0 : if (!m_threadId)
92 0 : m_threadId = osl_getThreadIdentifier(NULL);
93 0 : }
94 :
95 0 : void UnsafeBridge::v_enter(void)
96 : {
97 0 : m_mutex.acquire();
98 :
99 : OSL_ASSERT(m_count >= 0);
100 :
101 0 : if (m_count == 0)
102 0 : m_threadId = osl_getThreadIdentifier(NULL);
103 :
104 0 : ++ m_count;
105 0 : }
106 :
107 0 : void UnsafeBridge::v_leave(void)
108 : {
109 : OSL_ASSERT(m_count > 0);
110 :
111 0 : -- m_count;
112 0 : if (!m_count)
113 0 : m_threadId = 0;
114 :
115 :
116 0 : m_mutex.release();
117 0 : }
118 :
119 0 : int UnsafeBridge::v_isValid(rtl::OUString * pReason)
120 : {
121 0 : int result = 1;
122 :
123 0 : result = m_count > 0;
124 0 : if (!result)
125 0 : *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("not entered"));
126 :
127 : else
128 : {
129 0 : result = m_threadId == osl_getThreadIdentifier(NULL);
130 :
131 0 : if (!result)
132 0 : *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("wrong thread"));
133 : }
134 :
135 0 : if (result)
136 0 : *pReason = rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("OK"));
137 :
138 0 : return result;
139 : }
140 :
141 0 : extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_initEnvironment(uno_Environment * pEnv)
142 : SAL_THROW_EXTERN_C()
143 : {
144 0 : cppu::helper::purpenv::Environment_initWithEnterable(pEnv, new UnsafeBridge());
145 0 : }
146 :
147 0 : extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_ext_getMapping(uno_Mapping ** ppMapping,
148 : uno_Environment * pFrom,
149 : uno_Environment * pTo )
150 : {
151 0 : cppu::helper::purpenv::createMapping(ppMapping, pFrom, pTo);
152 0 : }
153 :
154 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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