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 <MTConfig.h>
26 
27 #if MT_MSVC_COMPILER_FAMILY
28 #include <crtdefs.h>
29 #elif MT_GCC_COMPILER_FAMILY
30 #include <sys/types.h>
31 #include <stddef.h>
32 #else
33 #error Compiler is not supported
34 #endif
35 
36 #if MT_MSVC_COMPILER_FAMILY
37 #define MT_NORETURN
38 #elif MT_GCC_COMPILER_FAMILY
39 #define MT_NORETURN // [[ noreturn ]]
40 #else
41 #error Can not define MT_NORETURN. Unknown platform.
42 #endif
43 
44 
45 
46 #define MT_DEFAULT_ALIGN (16)
47 
48 namespace MT
49 {
50 	// Memory allocator interface.
51 	//////////////////////////////////////////////////////////////////////////
52 	struct Memory
53 	{
54 		struct StackDesc
55 		{
56 			void* stackBottom;
57 			void* stackTop;
58 
59 			char* stackMemory;
60 			size_t stackMemoryBytesCount;
61 
62 
StackDescMemory::StackDesc63 			StackDesc()
64 				: stackBottom(nullptr)
65 				, stackTop(nullptr)
66 				, stackMemory(nullptr)
67 				, stackMemoryBytesCount(0)
68 			{
69 			}
70 
GetStackSizeMemory::StackDesc71 			size_t GetStackSize()
72 			{
73 				return (char*)stackTop - (char*)stackBottom;
74 			}
75 		};
76 
77 
78 		static void* Alloc(size_t size, size_t align = MT_DEFAULT_ALIGN);
79 		static void Free(void* p);
80 
81 		static StackDesc AllocStack(size_t size);
82 		static void FreeStack(const StackDesc & desc);
83 	};
84 
85 
86 	struct Diagnostic
87 	{
88 		MT_NORETURN static void ReportAssert(const char* condition, const char* description, const char* sourceFile, int sourceLine);
89 	};
90 
91 
92 }
93