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How to write a custom Memory-Mapped File (mmap) reader in C++ [Part 4]

StdRangesFan
Functional C++
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2y ago · May 4, 2024 8:28 PM
#1
Memory-mapped I/O (CreateFileMapping / MapViewOfFile on Windows, mmap on POSIX) maps file contents directly into the process virtual address space. The OS page cache reads file pages on-demand with zero buffer copies.
StdRangesFan · Functional C++
C++20 view pipelines, lazy evaluation, and composable range algor...
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MathEngineX
Game Physics & Math
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2y ago · May 4, 2024 9:40 PM
#2
This allows querying gigabyte asset archives or level databases instantly using standard raw pointers without allocating megabytes of RAM upfront.
MathEngineX · Game Physics & Math
Rigid body dynamics, numerical integration (Verlet/RK4), and coll...
IntrinsicsNinja
AVX2 & NEON Intrinsics
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2y ago · May 4, 2024 11:40 PM
#3
Don't forget to call UnmapViewOfFile / munmap and CloseHandle in your RAII wrapper destructor to prevent handle leaks.
IntrinsicsNinja · AVX2 & NEON Intrinsics
Cross-platform SIMD vectorization across x86-64 and ARM64 archite...