55 lines
2.2 KiB
C++
55 lines
2.2 KiB
C++
#pragma once
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#define GP_ALLOCATOR_TRACK_ALLOCATIONS BUILD_DEBUG
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#define GP_ALLOCATOR_VERY_DEBUG BUILD_DEBUG && 0
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#if COMPILER_MSVC
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#include <malloc.h> // _aligned_malloc, _aligned_realloc, _aligned_free (MSVC Only!)
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#if GP_ALLOCATOR_VERY_DEBUG
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#include <crtdbg.h> // required for _dbg variants
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#define Aligned_Alloc(sz, align) _aligned_malloc_dbg(sz, align, __FILE__, __LINE__)
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#define Aligned_Realloc(old_sz, ptr, sz, align) _aligned_realloc_dbg(ptr, sz, align, __FILE__, __LINE__)
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#define Aligned_Free(ptr) _aligned_free_dbg(ptr)
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#else
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#define Aligned_Alloc(sz, align) _aligned_malloc(sz, align)
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#define Aligned_Realloc(old_sz, ptr, sz, align) _aligned_realloc(ptr, sz, align)
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#define Aligned_Free(ptr) _aligned_free(ptr)
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#endif
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#else // Non-MSVC (POSIX / GCC / Clang)
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#include <cstdlib> // std::aligned_alloc
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#define Aligned_Alloc(sz, align) std::aligned_alloc(align, sz)
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#define Aligned_Realloc(old_sz, ptr, sz, align) gp_aligned_realloc(old_sz, ptr, sz, align)
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#define Aligned_Free(ptr) std::free(ptr)
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#endif
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struct Allocation {
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s64 size;
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void* memory;
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s32 alignment;
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};
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struct General_Allocator {
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#if GP_ALLOCATOR_TRACK_ALLOCATIONS
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// NOTE: This is VERY slow, a hashmap is better suited here,
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// but this is just a quick and dirty solution for now.
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Array<Allocation> allocations;
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s64 total_bytes_allocated = 0;
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#endif
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};
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General_Allocator* get_general_allocator_data();
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constexpr u16 default_allocator_Default_Alignment = 16;
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Allocator default_allocator ();
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void* default_allocator_proc (Allocator_Mode mode, s64 requested_size, s64 old_size, void* old_memory, void* allocator_data);
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void* default_allocator_new (s64 new_size, s64 alignment=16, bool initialize=true);
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void* default_allocator_realloc (s64 old_size, void* old_memory, s64 new_size, s64 alignment=16, bool initialize=true);
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void default_allocator_free (void* memory);
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bool default_allocator_Is_This_Yours (void* old_memory);
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void default_allocator_Initialize_Allocation_Tracker ();
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bool default_allocator_Tracking_Enabled ();
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// #TODO: I want to be able to tag any allocations in debug mode.
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