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Generate uniq name

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This commit is contained in:
Edwin Cheng 2020-04-26 18:52:21 +08:00
parent 183673655f
commit bfce657377
1 changed files with 11 additions and 3 deletions
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14
crates/ra_proc_macro_srv/src/dylib.rs
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@ -8,7 +8,6 @@ use goblin::{mach::Mach, Object};
use libloading::Library;
use memmap::Mmap;
use ra_proc_macro::ProcMacroKind;
use std::io;
const NEW_REGISTRAR_SYMBOL: &str = "_rustc_proc_macro_decls_";
@ -197,7 +196,10 @@ impl Expander {
/// Copy the dylib to temp directory to prevent locking in Windows
#[cfg(windows)]
fn ensure_file_with_lock_free_access(path: &Path) -> io::Result<PathBuf> {
use std::{ffi::OsString, time::SystemTime};
let mut to = std::env::temp_dir();
let file_name = path.file_name().ok_or_else(|| {
io::Error::new(
io::ErrorKind::InvalidInput,
@ -205,8 +207,14 @@ fn ensure_file_with_lock_free_access(path: &Path) -> io::Result<PathBuf> {
)
})?;
to.push(file_name);
std::fs::copy(path, &to)?;
// generate a time deps unique number
let t = SystemTime::now().duration_since(std::time::UNIX_EPOCH).expect("Time went backwards");
let mut unique_name = OsString::from(t.as_millis().to_string());
unique_name.push(file_name);
to.push(unique_name);
std::fs::copy(path, &to).unwrap();
Ok(to)
}