mirror of
https://github.com/Fennix-Project/Drivers.git
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74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
/*
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This file is part of Fennix Drivers.
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Fennix Drivers is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Drivers is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <base.h>
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#include <driver.h>
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extern __driverAPI *API;
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/**
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* TODO: memory allocator
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* we can't really call kernel's malloc because the
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* kernel keep track of memory usage for each driver
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*
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* maybe implement the allocator in vma?
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*/
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void *__new_alloc_page(std::size_t Size)
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{
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/* Do not allow allocations larger than 4 KiB */
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if (Size > PAGE_SIZE)
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asmv("ud2");
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return API->RequestPages(API->MajorID, 1);
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}
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void __delete_alloc_page(void *Pointer)
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{
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API->FreePages(API->MajorID, Pointer, 1);
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}
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void *operator new(std::size_t Size)
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{
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return __new_alloc_page(Size);
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}
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void *operator new[](std::size_t Size)
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{
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return __new_alloc_page(Size);
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}
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void operator delete(void *Pointer)
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{
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__delete_alloc_page(Pointer);
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}
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void operator delete[](void *Pointer)
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{
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__delete_alloc_page(Pointer);
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}
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void operator delete(void *Pointer, std::size_t)
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{
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__delete_alloc_page(Pointer);
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}
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void operator delete[](void *Pointer, std::size_t)
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{
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__delete_alloc_page(Pointer);
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}
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