1 // The MIT License (MIT)
2 //
3 // 	Copyright (c) 2015 Sergey Makeev, Vadim Slyusarev
4 //
5 // 	Permission is hereby granted, free of charge, to any person obtaining a copy
6 // 	of this software and associated documentation files (the "Software"), to deal
7 // 	in the Software without restriction, including without limitation the rights
8 // 	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // 	copies of the Software, and to permit persons to whom the Software is
10 // 	furnished to do so, subject to the following conditions:
11 //
12 //  The above copyright notice and this permission notice shall be included in
13 // 	all copies or substantial portions of the Software.
14 //
15 // 	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // 	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // 	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // 	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // 	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // 	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21 // 	THE SOFTWARE.
22 
23 #pragma once
24 
25 #include <MTTypes.h>
26 #include <MTDebug.h>
27 
28 typedef void (*TThreadEntryPoint)(void* userData);
29 
30 #define MT_ARRAY_SIZE( arr ) ( sizeof( arr ) / sizeof( (arr)[0] ) )
31 
32 namespace MT
33 {
34 	namespace EventReset
35 	{
36 		enum Type
37 		{
38 			AUTOMATIC = 0,
39 			MANUAL = 1,
40 		};
41 	}
42 }
43 
44 
45 inline bool IsPointerAligned( const volatile void* p, const uint32 align )
46 {
47 	static_assert (sizeof(void*) == sizeof(size_t), "Can't cast pointer to size_t, different type size");
48 	return !(size_t(p) & (align - 1));
49 }
50 
51 #ifdef _WIN32
52 	#include <Platform/Windows/MTCommon.h>
53 #else
54 	#include <Platform/Posix/MTCommon.h>
55 #endif
56 
57 
58 namespace MT
59 {
60 
61 	//
62 	//
63 	//
64 	class ScopedGuard
65 	{
66 		MT::Mutex & mutex;
67 
68 		ScopedGuard( const ScopedGuard & ) : mutex(*((MT::Mutex*)nullptr)) {}
69 		void operator=( const ScopedGuard &) {}
70 
71 	public:
72 
73 		ScopedGuard(MT::Mutex & _mutex) : mutex(_mutex)
74 		{
75 			mutex.Lock();
76 		}
77 
78 		~ScopedGuard()
79 		{
80 			mutex.Unlock();
81 		}
82 	};
83 
84 	//
85 	// Simple Linear congruential generator
86 	//
87 	class LcgRandom
88 	{
89 		uint32 state;
90 
91 	public:
92 
93 		LcgRandom()
94 			: state(2578432553)
95 		{
96 		}
97 
98 		void SetSeed(uint32 seed)
99 		{
100 			state = seed;
101 		}
102 
103 		uint16 Get()
104 		{
105 			state = 214013 * state + 2531011;
106 			uint16 rnd = (state >> 16);
107 			return rnd;
108 		}
109 
110 
111 	};
112 
113 }
114 
115