Fortune for libcow's current commit: Future small blessing − 末小吉master
parent
671fcd3968
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130f21f57e
GPG Key ID:
284488987C31F630
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "cowslice"
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version = "0.1.0"
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dependencies = [
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"rustc_version",
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]
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[[package]]
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name = "rustc_version"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
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dependencies = [
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"semver",
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]
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[[package]]
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name = "semver"
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version = "0.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
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dependencies = [
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"semver-parser",
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]
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[[package]]
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name = "semver-parser"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
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@ -1,11 +0,0 @@
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[package]
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name = "cowslice"
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version = "0.1.0"
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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[build-dependencies]
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rustc_version = "0.2"
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@ -1,27 +0,0 @@
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extern crate rustc_version;
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use rustc_version::{version, version_meta, Channel};
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fn main() {
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// Assert we haven't travelled back in time
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assert!(version().unwrap().major >= 1);
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// Set cfg flags depending on release channel
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match version_meta().unwrap().channel {
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Channel::Stable => {
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println!("cargo:rustc-cfg=stable");
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}
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Channel::Beta => {
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println!("cargo:rustc-cfg=beta");
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}
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Channel::Nightly => {
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println!("cargo:rustc-cfg=nightly");
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}
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Channel::Dev => {
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println!("cargo:rustc-cfg=dev");
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}
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}
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// Link to `libcow.a`
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println!(r"cargo:rustc-link-search=./lib");
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println!(r"cargo:rustc-link-lib=cow");
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}
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@ -1,41 +0,0 @@
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use super::*;
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use std::{error, fmt};
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use std::ffi::CStr;
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/// A `libcow` error object.
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#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
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#[repr(transparent)]
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pub struct Error(i32);
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impl Error
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{
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/// The last error in `libcow`.
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#[inline(always)] pub fn last() -> Self
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{
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Self(unsafe {ffi::cow_err()})
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}
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}
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impl error::Error for Error{}
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impl fmt::Display for Error
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
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{
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const DEFAULT: &'static [u8] = b"unknown\0"; // must be `nul`'d
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let cstr = unsafe {
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let ptr = ffi::cow_err_msg(self.0);
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if ptr.is_null() {
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CStr::from_bytes_with_nul_unchecked(DEFAULT)
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} else {
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let ptr = *ptr;
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if ptr.is_null() {
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CStr::from_bytes_with_nul_unchecked(DEFAULT)
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} else {
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CStr::from_ptr(ptr as *const i8)
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}
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}
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};
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write!(f, "{}", cstr.to_string_lossy())
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}
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}
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//! Interfaces with the C library
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use core::ffi::c_void;
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/// Raw `cow_t*`
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///
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/// This is, essentially, a pointer to the origin (`void*`) pointer.
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/// So is represented as `*mut RawHandle == void**`.
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pub type RawHandle = *mut c_void;
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extern "C" {
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pub fn cow_create(sz: usize) -> *mut RawHandle;
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pub fn cow_free(cow: *mut RawHandle);
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pub fn cow_clone(cow: *const RawHandle) -> *mut RawHandle;
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pub fn cow_is_fake(cow: *const RawHandle) -> i32;
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pub fn cow_size(cow: *const RawHandle) -> usize;
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pub fn cow_err() -> i32;
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pub fn cow_err_msg(kind: i32) -> *const *const u8;
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}
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#[inline(always)] pub unsafe fn cow_area_mut(cow: *mut RawHandle) -> *mut c_void
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{
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*cow
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}
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#[inline(always)] pub unsafe fn cow_area(cow: *const RawHandle) -> *const c_void
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{
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(*cow) as *const _
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}
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@ -1,23 +0,0 @@
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#![allow(dead_code)]
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mod ffi;
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pub mod error;
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pub use error::Error;
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#[cfg(test)]
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mod tests {
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#[test]
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fn link_works() {
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unsafe {
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let raw_h = super::ffi::cow_create(100);
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assert_ne!(raw_h as usize, 0);
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println!("Raw handle pointer is {:p}", raw_h);
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super::ffi::cow_free(raw_h);
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}
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unsafe {
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assert_eq!(super::ffi::cow_err(), 1, "There was an error in `cow_free`");
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}
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}
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}
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