54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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* Copyright (c) 2016-2019 Irlan Robson https://irlanrobson.github.io
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef B3_STACK_ALLOCATOR_H
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#define B3_STACK_ALLOCATOR_H
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#include <bounce/common/settings.h>
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// Allocate 1 MiB from the stack.
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// Increase as you want.
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const u32 b3_maxStackSize = B3_MiB(1);
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// A stack allocator.
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class b3StackAllocator
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{
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public :
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b3StackAllocator();
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~b3StackAllocator();
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void* Allocate(u32 size);
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void Free(void* p);
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private :
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struct b3Block
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{
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u32 size;
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u8* data;
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bool parent;
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};
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u32 m_blockCapacity;
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b3Block* m_blocks;
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u32 m_blockCount;
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u32 m_allocatedSize; // marker
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u8 m_memory[b3_maxStackSize];
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};
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#endif
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