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Speed up StorePath::to_string()

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1.81% -> 0.56%
This commit is contained in:
Eelco Dolstra 2019-12-10 20:48:36 +01:00
parent f64b58b45e
commit f800d450b7
3 changed files with 24 additions and 8 deletions
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9
nix-rust/src/c.rs
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@ -1,6 +1,7 @@
use super::{
error,
foreign::{self, CBox},
store::path,
store::StorePath,
util,
};
@ -53,8 +54,12 @@ pub unsafe extern "C" fn ffi_StorePath_drop(self_: *mut StorePath) {
}
#[no_mangle]
pub extern "C" fn ffi_StorePath_to_string(self_: &StorePath) -> String {
format!("{}", self_)
pub extern "C" fn ffi_StorePath_to_string(self_: &StorePath) -> Vec<u8> {
let mut buf = vec![0; path::STORE_PATH_HASH_CHARS + 1 + self_.name.name().len()];
util::base32::encode_into(self_.hash.hash(), &mut buf[0..path::STORE_PATH_HASH_CHARS]);
buf[path::STORE_PATH_HASH_CHARS] = b'-';
buf[path::STORE_PATH_HASH_CHARS + 1..].clone_from_slice(self_.name.name().as_bytes());
buf
}
#[no_mangle]