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CHANGELOG.md

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Changelog

All notable changes to mmap-rs will be documented in this file.

0.7.0

  • Added support for MADV_WILLNEED and MADV_DONTNEED on Android and Linux (PR#45).
  • Updated the Rust edition from 2021 to 2024.
  • Updated the bitflags crate from version 1 to 2.
  • Updated the thiserror crate from version 1 to 2.
  • Updated the nix crate from version 0.26 to 0.30.
  • Updated the sysctl crate from version 0.5 to 0.6.
  • Bumped the MSRV (1.85).
  • Fixed the type for major device ID to use u16.

0.6.1

  • Implemented TryFrom for Mmap and Reserved objects for improved ergonomics.
  • Added the MSRV (1.67).

0.6.0

  • Implemented Debug for all public types.
  • Added MemoryAreas::query() and related functions to query a specific address or address range
  • Added Mmap::split_off() and related functions to split an existing memory mapping at a page boundary.
  • Added Mmap::merge() to merge adjacent memory mappings into one.
  • Added MmapOptions::reserve() and related functions to reserve memory mappings instead of committing them.
  • Changed MmapOptions::with_file() to require a reference to the file instead of taking ownership instead.
  • Documented flags that may have no operation on platforms that do not support the flag, such as MmapFlags::STACK on Microsoft Windows.
  • Changed MemoryAreas::query() to use mach_vm_region_recurse() on MacOS to recurse into submappings.
  • Changed MmapFlags::COPY_ON_WRITE to MmapFlags::SHARED, such that private memory mappings are the default and since copy-on-write semantics only make sense for file mappings.
  • Fixed an issue where MemoryAreas::query() and related functions returned the wrong ShareMode.
  • Removed ShareMode::CopyOnWrite and use ShareMode::Private instead.
  • Extended MemoryAreas::query() to return the allocation base of the memory mapping.
  • Updated the windows crate from version 0.44 to 0.48.

0.5.0

  • Implemented MmapOptions::page_sizes() to return the supported page sizes for the platform.
  • Separated the functions to get the page size and the allocation granularity.
  • Updated the windows crate from version 0.39 to 0.44.
  • Changed MmapOptions::new() to return Result<Self, Error> rather than Self to support the use of NonZeroUsize in nix.
  • Updated the nix crate from version 0.24 to 0.26.
  • Added support for i686-linux-android, aarch64-linux-android, x86_64-linux-android and armv7-linux-androideabi.
  • Added MapFlags::TRANSPARENT_HUGE_PAGES to hint the kernel that it may merge pages within the mapping into huge pages if possible when set to madvise mode.
  • MmapOptions::with_flags() appends the flags instead of overriding them.
  • Implemented Send and Sync for Mmap.

0.4.0

  • Added support for i686-pc-windows-msvc, aarch64-pc-windows-msvc, aarch64-apple-ios, x86_64-apple-ios, armv7a-unknown-linux-gnueabihf, aarch64-unknown-linux-gnu and i686-unknown-linux-gnu.
  • Updated various dependencies.
  • Relicensed under MIT and Apache.
  • Added the MemoryAreas iterator to iterate over the memory areas of a process.
  • Changed UnsafeMmapFlags::MAP_JIT to UnsafeMmapFlags::JIT to fix compilation on Mac OS X.