summaryrefslogtreecommitdiffstats
path: root/source/cCriticalSection.cpp
blob: bf27e9c0b6c6c48151398ef192fb6399d6917e46 (plain) (blame)
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
139
140
141
142
143
144
145
146
147
148
149
150

#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules





///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cCriticalSection:

cCriticalSection::cCriticalSection()
{
#ifdef _WIN32
	m_CriticalSectionPtr = new CRITICAL_SECTION;
	InitializeCriticalSection( (CRITICAL_SECTION*)m_CriticalSectionPtr );
#else
	m_Attributes = new pthread_mutexattr_t;
	pthread_mutexattr_init((pthread_mutexattr_t*)m_Attributes);
	pthread_mutexattr_settype((pthread_mutexattr_t*)m_Attributes, PTHREAD_MUTEX_RECURSIVE);

    m_CriticalSectionPtr = new pthread_mutex_t;
    if( pthread_mutex_init( (pthread_mutex_t*)m_CriticalSectionPtr, (pthread_mutexattr_t*)m_Attributes ) != 0 )
    {
        LOG("ERROR: Could not initialize Critical Section!");
    }
#endif
}





cCriticalSection::~cCriticalSection()
{
#ifdef _WIN32
	DeleteCriticalSection( (CRITICAL_SECTION*)m_CriticalSectionPtr );
	delete (CRITICAL_SECTION*)m_CriticalSectionPtr;
#else
    if( pthread_mutex_destroy( (pthread_mutex_t*)m_CriticalSectionPtr ) != 0 )
    {
        LOG("ERROR: Could not destroy Critical Section!");
    }
    delete (pthread_mutex_t*)m_CriticalSectionPtr;
	pthread_mutexattr_destroy( (pthread_mutexattr_t*)m_Attributes );
	delete (pthread_mutexattr_t*)m_Attributes;
#endif
}





void cCriticalSection::Lock()
{
#ifdef _WIN32
	EnterCriticalSection( (CRITICAL_SECTION*)m_CriticalSectionPtr );
#else
    pthread_mutex_lock( (pthread_mutex_t*)m_CriticalSectionPtr );
#endif
}





void cCriticalSection::Unlock()
{
#ifdef _WIN32
	LeaveCriticalSection( (CRITICAL_SECTION*)m_CriticalSectionPtr );
#else
    pthread_mutex_unlock( (pthread_mutex_t*)m_CriticalSectionPtr );
#endif
}





///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cCSLock

cCSLock::cCSLock(cCriticalSection * a_CS) :
	m_CS(a_CS),
	m_IsLocked(false)
{
	Lock();
}





cCSLock::~cCSLock()
{
	Unlock();
}





void cCSLock::Lock(void)
{
	#ifdef _DEBUG
	assert(!m_IsLocked);
	m_IsLocked = true;
	#endif  // _DEBUG
	
	m_CS->Lock();
}





void cCSLock::Unlock(void)
{
	#ifdef _DEBUG
	assert(m_IsLocked);
	m_IsLocked = false;
	#endif  // _DEBUG
	
	m_CS->Unlock();
}





///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cCSUnlock:

cCSUnlock::cCSUnlock(cCSLock & a_Lock) :
	m_Lock(a_Lock)
{
	m_Lock.Unlock();
}





cCSUnlock::~cCSUnlock()
{
	m_Lock.Lock();
}