page_size-0.6.0/.appveyor.yml000064400000000000000000000020521046102023000142420ustar 00000000000000environment: matrix: - TARGET: i686-pc-windows-gnu CHANNEL: stable - TARGET: x86_64-pc-windows-gnu CHANNEL: stable - TARGET: i686-pc-windows-gnu CHANNEL: beta - TARGET: x86_64-pc-windows-gnu CHANNEL: beta - TARGET: i686-pc-windows-gnu CHANNEL: nightly - TARGET: x86_64-pc-windows-gnu CHANNEL: nightly - TARGET: i686-pc-windows-msvc CHANNEL: stable - TARGET: x86_64-pc-windows-msvc CHANNEL: stable - TARGET: i686-pc-windows-msvc CHANNEL: beta - TARGET: x86_64-pc-windows-msvc CHANNEL: beta - TARGET: i686-pc-windows-msvc CHANNEL: nightly - TARGET: x86_64-pc-windows-msvc CHANNEL: nightly install: - curl -sSf -o rustup-init.exe https://win.rustup.rs - rustup-init.exe --default-host %TARGET% --default-toolchain %CHANNEL% -y - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin - rustc -Vv - cargo -V build: false test_script: - cargo build - cargo test - if [%CHANNEL%]==[nightly] ( cargo test --features "no_std" ) page_size-0.6.0/.cargo_vcs_info.json0000644000000001360000000000100130050ustar { "git": { "sha1": "ae67d388f3d34ac88136292901fc25e2b8c47af7" }, "path_in_vcs": "" }page_size-0.6.0/.gitignore000064400000000000000000000000371046102023000135650ustar 00000000000000/target/ **/*.rs.bk Cargo.lock page_size-0.6.0/.travis.yml000064400000000000000000000151351046102023000137130ustar 00000000000000language: rust rust: stable install: - if [ -z "$NO_ADD" ]; then rustup target add "$TARGET"; fi script: - cargo build --verbose --target "$TARGET" - if [ "$RUN" == "1" ]; then cargo test --verbose --target "$TARGET"; fi - if [ "$RUN" == "1" ] && [ "$TRAVIS_RUST_VERSION" == "nightly" ]; then cargo test --verbose --target "$TARGET" --features "no_std"; fi matrix: include: # Linux # gnu # i686 # stable - env: TARGET=i686-unknown-linux-gnu RUN=1 rust: stable addons: apt: packages: - gcc-multilib # beta - env: TARGET=i686-unknown-linux-gnu RUN=1 rust: beta addons: apt: packages: - gcc-multilib # nightly - env: TARGET=i686-unknown-linux-gnu RUN=1 rust: nightly addons: apt: packages: - gcc-multilib # x86_64 # stable - env: TARGET=x86_64-unknown-linux-gnu RUN=1 NO_ADD=1 rust: stable # beta - env: TARGET=x86_64-unknown-linux-gnu RUN=1 NO_ADD=1 rust: beta # nightly - env: TARGET=x86_64-unknown-linux-gnu RUN=1 NO_ADD=1 rust: nightly # arm # stable - env: TARGET=arm-unknown-linux-gnueabihf rust: stable # beta - env: TARGET=arm-unknown-linux-gnueabihf rust: beta # nightly - env: TARGET=arm-unknown-linux-gnueabihf rust: nightly # aarch64 # stable - env: TARGET=aarch64-unknown-linux-gnu rust: stable # beta - env: TARGET=aarch64-unknown-linux-gnu rust: beta # nightly - env: TARGET=aarch64-unknown-linux-gnu rust: nightly # mips # stable - env: TARGET=mips-unknown-linux-gnu rust: stable # beta - env: TARGET=mips-unknown-linux-gnu rust: beta # nightly - env: TARGET=mips-unknown-linux-gnu rust: nightly # musl # i686 # stable - env: TARGET=i686-unknown-linux-musl RUN=1 rust: stable addons: apt: packages: - gcc-multilib # beta - env: TARGET=i686-unknown-linux-musl RUN=1 rust: beta addons: apt: packages: - gcc-multilib # nightly - env: TARGET=i686-unknown-linux-musl RUN=1 rust: nightly addons: apt: packages: - gcc-multilib # x86_64 # stable - env: TARGET=x86_64-unknown-linux-musl RUN=1 rust: stable # beta - env: TARGET=x86_64-unknown-linux-musl RUN=1 rust: beta # nightly - env: TARGET=x86_64-unknown-linux-musl RUN=1 rust: nightly # aarch64 # stable # - env: TARGET=aarch64-unknown-linux-musl # rust: stable # beta # - env: TARGET=aarch64-unknown-linux-musl # rust: beta # nightly - env: TARGET=aarch64-unknown-linux-musl rust: nightly # Mac OS X # i686 # stable - os: osx env: TARGET=i686-apple-darwin RUN=1 rust: stable # beta - os: osx env: TARGET=i686-apple-darwin RUN=1 rust: beta # nightly - os: osx env: TARGET=i686-apple-darwin RUN=1 rust: nightly # x86_64 # stable - os: osx env: TARGET=x86_64-apple-darwin RUN=1 NO_ADD=1 rust: stable # beta - os: osx env: TARGET=x86_64-apple-darwin RUN=1 NO_ADD=1 rust: beta # nightly - os: osx env: TARGET=x86_64-apple-darwin RUN=1 NO_ADD=1 rust: nightly # Android # i686 # stable - env: TARGET=i686-linux-android rust: stable # beta - env: TARGET=i686-linux-android rust: beta # nightly - env: TARGET=i686-linux-android rust: nightly # x86_64 # stable - env: TARGET=x86_64-linux-android rust: stable # beta - env: TARGET=x86_64-linux-android rust: beta # nightly - env: TARGET=x86_64-linux-android rust: nightly # arm # stable - env: TARGET=arm-linux-androideabi rust: stable # beta - env: TARGET=arm-linux-androideabi rust: beta # nightly - env: TARGET=arm-linux-androideabi rust: nightly # aarch64 # stable - env: TARGET=aarch64-linux-android rust: stable # beta - env: TARGET=aarch64-linux-android rust: beta # nightly - env: TARGET=aarch64-linux-android rust: nightly # IOS # 32-bit # stable - os: osx osx_image: xcode9 env: TARGET=i386-apple-ios rust: stable # beta - os: osx osx_image: xcode9 env: TARGET=i386-apple-ios rust: beta # nightly - os: osx osx_image: xcode9 env: TARGET=i386-apple-ios rust: nightly # 64-bit # stable - os: osx osx_image: xcode9 env: TARGET=x86_64-apple-ios rust: stable # beta - os: osx osx_image: xcode9 env: TARGET=x86_64-apple-ios rust: beta # nightly - os: osx osx_image: xcode9 env: TARGET=x86_64-apple-ios rust: nightly # FreeBSD # i686 # stable - env: TARGET=i686-unknown-freebsd rust: stable # beta - env: TARGET=i686-unknown-freebsd rust: beta # nightly - env: TARGET=i686-unknown-freebsd rust: nightly # x86_64 # stable - env: TARGET=x86_64-unknown-freebsd rust: stable # beta - env: TARGET=x86_64-unknown-freebsd rust: beta # nightly - env: TARGET=x86_64-unknown-freebsd rust: nightly # NetBSD # x86_64 # stable - env: TARGET=x86_64-unknown-netbsd rust: stable # beta - env: TARGET=x86_64-unknown-netbsd rust: beta # nightly - env: TARGET=x86_64-unknown-netbsd rust: nightly # Emscripten # stable - env: TARGET=asmjs-unknown-emscripten rust: stable # beta - env: TARGET=asmjs-unknown-emscripten rust: beta # nightly - env: TARGET=asmjs-unknown-emscripten rust: nightly # WASI # stable - env: TARGET=wasm32-wasi rust: stable # beta - env: TARGET=wasm32-wasi rust: beta # nightly - env: TARGET=wasm32-wasi rust: nightly # WebAssembly # stable - env: TARGET=wasm32-unknown-unknown rust: stable # beta - env: TARGET=wasm32-unknown-unknown rust: beta # nightly - env: TARGET=wasm32-unknown-unknown rust: nightly page_size-0.6.0/Cargo.toml0000644000000024130000000000100110030ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies. # # If you are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] name = "page_size" version = "0.6.0" authors = ["Philip Woods "] description = "Provides an easy, fast, cross-platform way to retrieve the memory page size" homepage = "https://github.com/Elzair/page_size_rs" documentation = "https://docs.rs/page_size/" readme = "README.md" keywords = [ "page", "memory", "ram", "page_size", ] categories = ["os"] license = "MIT/Apache-2.0" repository = "https://github.com/Elzair/page_size_rs" [dependencies.spin] version = "0.9.8" optional = true [features] no_std = ["spin"] [target."cfg(unix)".dependencies.libc] version = "^0.2" [target."cfg(windows)".dependencies.winapi] version = "0.3.9" features = ["sysinfoapi"] [badges.appveyor] repository = "Elzair/page_size_rs" [badges.travis-ci] repository = "Elzair/page_size_rs" page_size-0.6.0/Cargo.toml.orig000064400000000000000000000014551046102023000144710ustar 00000000000000[package] name = "page_size" version = "0.6.0" authors = ["Philip Woods "] description = "Provides an easy, fast, cross-platform way to retrieve the memory page size" readme = "README.md" license = "MIT/Apache-2.0" documentation = "https://docs.rs/page_size/" homepage = "https://github.com/Elzair/page_size_rs" repository = "https://github.com/Elzair/page_size_rs" keywords = ["page", "memory", "ram", "page_size"] categories = ["os"] [badges] travis-ci = { repository = "Elzair/page_size_rs" } appveyor = { repository = "Elzair/page_size_rs" } [features] no_std = ["spin"] [dependencies] spin = { version = "0.9.8", optional = true } [target.'cfg(unix)'.dependencies] libc = "^0.2" [target.'cfg(windows)'.dependencies] winapi = { version = "0.3.9", features = ["sysinfoapi"] } page_size-0.6.0/LICENSE-APACHE000064400000000000000000000251361046102023000135300ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License.page_size-0.6.0/LICENSE-MIT000064400000000000000000000020561046102023000132340ustar 00000000000000Copyright (c) 2014 The Rust Project Developers Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.page_size-0.6.0/README.md000064400000000000000000000043671046102023000130660ustar 00000000000000`page_size_rs` is a Rust crate that provides an easy, fast, cross-platform way to retrieve the memory page size of the current system. It supports any POSIX-compliant system, Windows, and WebAssembly. [Documentation](https://docs.rs/page_size) [![Linux Status](https://travis-ci.org/Elzair/page_size_rs.svg?branch=master)](https://travis-ci.org/Elzair/page_size_rs) [![Build status](https://ci.appveyor.com/api/projects/status/yudj2sx460ywyygn/branch/master?svg=true)](https://ci.appveyor.com/project/Elzair/page_size_rs) # Introduction Modern hardware and software tend to load data into RAM (and transfer data from RAM to disk) in discrete chunk called pages. This crate provides a helper method to retrieve the size in bytes of these pages. Since the page size *should not* change during execution, `page_size_rs` will cache the result after it has been called once. To make this crate useful for writing memory allocators, it does not require (but can use) the Rust standard library. Since Windows addresses sometimes have to correspond with an allocation granularity that does not always match the size of the page, I have included a method to retrieve that as well. # Example ```rust extern crate page_size; fn main() { println!("{}", page_size::get()); } ``` # Platforms `page_size_rs` should Work on Windows, any POSIX compatible system (Linux, Mac OSX, etc.), and WebAssembly. `page_size_rs` is continuously tested on: * `x86_64-unknown-linux-gnu` (Linux) * `i686-unknown-linux-gnu` * `x86_64-unknown-linux-musl` (Linux w/ [MUSL](https://www.musl-libc.org/)) * `i686-unknown-linux-musl` * `x86_64-apple-darwin` (Mac OSX) * `i686-apple-darwin` * `x86_64-pc-windows-msvc` (Windows) * `i686-pc-windows-msvc` * `x86_64-pc-windows-gnu` * `i686-pc-windows-gnu` `page_size_rs` is continuously cross-compiled for: * `arm-unknown-linux-gnueabihf` * `aarch64-unknown-linux-gnu` * `mips-unknown-linux-gnu` * `aarch64-unknown-linux-musl` * `i686-linux-android` * `x86_64-linux-android` * `arm-linux-androideabi` * `aarch64-linux-android` * `i386-apple-ios` * `x86_64-apple-ios` * `i686-unknown-freebsd` * `x86_64-unknown-freebsd` * `x86_64-unknown-netbsd` * `asmjs-unknown-emscripten` * `wasm32-wasi` * `wasm32-unknown-unknown` page_size-0.6.0/src/lib.rs000064400000000000000000000113041046102023000134770ustar 00000000000000#![no_std] //! This crate provides an easy, fast, cross-platform way to retrieve the //! memory page size of the current system. //! //! Modern hardware and software tend to load data into RAM (and transfer data //! from RAM to disk) in discrete chunk called pages. This crate provides a //! helper method to retrieve the size in bytes of these pages. Since the page //! size *should not* change during execution, this crate will cache the result //! after it has been called once. //! //! To make this crate useful for writing memory allocators, it does not require //! (but can use) the Rust standard library. //! //! Since Windows addresses sometimes have to correspond with an allocation //! granularity that does not always match the size of the page, I have included //! a method to retrieve that as well. //! //! # Example //! //! ```rust //! extern crate page_size; //! println!("{}", page_size::get()); //! ``` #[cfg(feature = "no_std")] extern crate spin; #[cfg(feature = "no_std")] use spin::Once; #[cfg(not(feature = "no_std"))] extern crate std; #[cfg(not(feature = "no_std"))] use std::sync::Once; #[cfg(unix)] extern crate libc; #[cfg(windows)] extern crate winapi; /// This function retrieves the system's memory page size. /// /// # Example /// /// ```rust /// extern crate page_size; /// println!("{}", page_size::get()); /// ``` pub fn get() -> usize { get_helper() } /// This function retrieves the system's memory allocation granularity. /// /// # Example /// /// ```rust /// extern crate page_size; /// println!("{}", page_size::get_granularity()); /// ``` pub fn get_granularity() -> usize { get_granularity_helper() } // Unix Section #[cfg(all(unix, feature = "no_std"))] #[inline] fn get_helper() -> usize { static INIT: Once = Once::new(); *INIT.call_once(unix::get) } #[cfg(all(unix, not(feature = "no_std")))] #[inline] fn get_helper() -> usize { static INIT: Once = Once::new(); static mut PAGE_SIZE: usize = 0; unsafe { INIT.call_once(|| PAGE_SIZE = unix::get()); PAGE_SIZE } } // Unix does not have a specific allocation granularity. // The page size works well. #[cfg(unix)] #[inline] fn get_granularity_helper() -> usize { get_helper() } #[cfg(unix)] mod unix { use libc::{sysconf, _SC_PAGESIZE}; #[inline] pub fn get() -> usize { unsafe { sysconf(_SC_PAGESIZE) as usize } } } // WebAssembly section // WebAssembly does not have a specific allocation granularity. // The page size works well. #[cfg(all(not(target_os = "emscripten"), any(target_arch = "wasm32", target_arch = "wasm64")))] #[inline] fn get_granularity_helper() -> usize { // 65536 } // Windows Section #[cfg(all(windows, feature = "no_std"))] #[inline] fn get_helper() -> usize { static INIT: Once = Once::new(); *INIT.call_once(windows::get) } #[cfg(all(windows, not(feature = "no_std")))] #[inline] fn get_helper() -> usize { static INIT: Once = Once::new(); static mut PAGE_SIZE: usize = 0; unsafe { INIT.call_once(|| PAGE_SIZE = windows::get()); PAGE_SIZE } } #[cfg(all(windows, feature = "no_std"))] #[inline] fn get_granularity_helper() -> usize { static GRINIT: Once = Once::new(); *GRINIT.call_once(windows::get_granularity) } #[cfg(all(windows, not(feature = "no_std")))] #[inline] fn get_granularity_helper() -> usize { static GRINIT: Once = Once::new(); static mut GRANULARITY: usize = 0; unsafe { GRINIT.call_once(|| GRANULARITY = windows::get_granularity()); GRANULARITY } } #[cfg(windows)] mod windows { #[cfg(feature = "no_std")] use core::mem; #[cfg(not(feature = "no_std"))] use std::mem; use winapi::um::sysinfoapi::GetSystemInfo; use winapi::um::sysinfoapi::{LPSYSTEM_INFO, SYSTEM_INFO}; #[inline] pub fn get() -> usize { unsafe { let mut info: SYSTEM_INFO = mem::zeroed(); GetSystemInfo(&mut info as LPSYSTEM_INFO); info.dwPageSize as usize } } #[inline] pub fn get_granularity() -> usize { unsafe { let mut info: SYSTEM_INFO = mem::zeroed(); GetSystemInfo(&mut info as LPSYSTEM_INFO); info.dwAllocationGranularity as usize } } } // Stub Section #[cfg(not(any(unix, windows)))] #[inline] fn get_helper() -> usize { 4096 // 4k is the default on many systems } #[cfg(test)] mod tests { use super::*; #[test] fn test_get() { #[allow(unused_variables)] let page_size = get(); } #[test] fn test_get_granularity() { #[allow(unused_variables)] let granularity = get_granularity(); } }