summaryrefslogtreecommitdiff
path: root/include/threadengine.h
blob: 8df288cae5a211ee607012ea0b386cfdde1c42f8 (plain)
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
#ifndef THREADENGINE_H
#define THREADENGINE_H

#ifdef _WIN32
typedef HANDLE ThreadHandle;
typedef CRITICAL_SECTION MutexHandle;
typedef HANDLE CondHandle;
#else
# include <pthread.h>
typedef pthread_t ThreadHandle;
typedef pthread_mutex_t MutexHandle;
typedef pthread_cond_t CondHandle;
#endif

class ThreadEngine;
class Thread;

extern CoreExport ThreadEngine threadEngine;

class CoreExport ThreadEngine
{
 public:
	/* Vector of threads */
	std::vector<Thread *> threads;

	/** Threadengines constructor
	 */
	ThreadEngine();

	/** Threadengines destructor
	 */
	~ThreadEngine();

	/** Start a new thread
	 * @param thread A pointer to a newley allocated thread
	 */
	void Start(Thread *thread);

	/** Check for finished threads
	 */
	void Process();
};

class CoreExport Thread : public Extensible
{
 private:
	/* Set to true to tell the thread to finish and we are waiting for it */
	bool Exit;

 public:
	/* Handle for this thread */
	ThreadHandle Handle;

	/** Threads constructor
	 */
	Thread();

	/** Threads destructor
	 */
	virtual ~Thread();

	/** Join to the thread, sets the exit state to true
	 */
	void Join();

	/** Sets the exit state as true informing the thread we want it to shut down
	 */
	void SetExitState();

	/** Returns the exit state of the thread
	 * @return true if we want to exit
	 */
	bool GetExitState() const;

	/** Called to run the thread, should be overloaded
	 */
	virtual void Run();
};

class CoreExport Mutex
{
 protected:
	/* A mutex, used to keep threads in sync */
	MutexHandle mutex;

 public:
	/** Constructor
	 */
	Mutex();

	/** Destructor
	 */
	~Mutex();

	/** Attempt to lock the mutex, will hang until a lock can be achieved
	 */
	void Lock();

	/** Unlock the mutex, it must be locked first
	 */
	void Unlock();
};

class CoreExport Condition : public Mutex
{
 private:
	/* A condition */
	CondHandle cond;

 public:
	/** Constructor
	 */
	Condition();

	/** Destructor
	 */
	~Condition();

	/** Called to wakeup the waiter
	 */
	void Wakeup();

	/** Called to wait for a Wakeup() call
	 */
	void Wait();
};

#endif // THREADENGINE_H