1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "osl/module.hxx"
#include "tools/solarmutex.hxx"
#include "generic/geninst.h"
// -------------------------------------------------------------------------
//
// SalYieldMutex
//
// -------------------------------------------------------------------------
SalYieldMutex::SalYieldMutex()
{
mnCount = 0;
mnThreadId = 0;
::tools::SolarMutex::SetSolarMutex( this );
}
SalYieldMutex::~SalYieldMutex()
{
::tools::SolarMutex::SetSolarMutex( NULL );
}
void SalYieldMutex::acquire()
{
SolarMutexObject::acquire();
mnThreadId = osl::Thread::getCurrentIdentifier();
mnCount++;
}
void SalYieldMutex::release()
{
OSL_ENSURE(mnCount > 0, "SalYieldMutex::release() called with zero count");
if ( mnThreadId == osl::Thread::getCurrentIdentifier() )
{
if ( mnCount == 1 )
mnThreadId = 0;
mnCount--;
}
SolarMutexObject::release();
}
sal_Bool SalYieldMutex::tryToAcquire()
{
if ( SolarMutexObject::tryToAcquire() )
{
mnThreadId = osl::Thread::getCurrentIdentifier();
mnCount++;
return sal_True;
}
else
return sal_False;
}
osl::SolarMutex* SalGenericInstance::GetYieldMutex()
{
return mpSalYieldMutex;
}
sal_uLong SalGenericInstance::ReleaseYieldMutex()
{
SalYieldMutex* pYieldMutex = mpSalYieldMutex;
if ( pYieldMutex->GetThreadId() ==
osl::Thread::getCurrentIdentifier() )
{
sal_uLong nCount = pYieldMutex->GetAcquireCount();
sal_uLong n = nCount;
while ( n )
{
pYieldMutex->release();
n--;
}
return nCount;
}
else
return 0;
}
void SalGenericInstance::AcquireYieldMutex( sal_uLong nCount )
{
SalYieldMutex* pYieldMutex = mpSalYieldMutex;
while ( nCount )
{
pYieldMutex->acquire();
nCount--;
}
}
bool SalGenericInstance::CheckYieldMutex()
{
bool bRet = true;
SalYieldMutex* pYieldMutex = mpSalYieldMutex;
if ( pYieldMutex->GetThreadId() != osl::Thread::getCurrentIdentifier() )
bRet = false;
return bRet;
}
SalGenericInstance::~SalGenericInstance()
{
::tools::SolarMutex::SetSolarMutex( 0 );
delete mpSalYieldMutex;
}
|
