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| author | Hiroki Noda <kubo39@gmail.com> | 2020-02-02 21:25:38 +0900 |
|---|---|---|
| committer | Hiroki Noda <kubo39@gmail.com> | 2020-02-16 19:53:42 +0900 |
| commit | 67068f35dd41409c8e79710f1335cc9dc64f1860 (patch) | |
| tree | 3cb93eab65ece97de74db5db3ed65485e0a5212d | |
| parent | 0cbcb17d3306d6e22eafc2c05ce885db97d0189c (diff) | |
| download | rust-67068f35dd41409c8e79710f1335cc9dc64f1860.tar.gz rust-67068f35dd41409c8e79710f1335cc9dc64f1860.zip | |
macOS: avoid calling pthread_self() twice
| -rw-r--r-- | src/libstd/sys/unix/thread.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/libstd/sys/unix/thread.rs b/src/libstd/sys/unix/thread.rs index 3ca778354e4..674d4c71138 100644 --- a/src/libstd/sys/unix/thread.rs +++ b/src/libstd/sys/unix/thread.rs @@ -255,8 +255,9 @@ pub mod guard { #[cfg(target_os = "macos")] unsafe fn get_stack_start() -> Option<*mut libc::c_void> { - let stackaddr = libc::pthread_get_stackaddr_np(libc::pthread_self()) as usize - - libc::pthread_get_stacksize_np(libc::pthread_self()); + let th = libc::pthread_self(); + let stackaddr = + libc::pthread_get_stackaddr_np(th) as usize - libc::pthread_get_stacksize_np(th); Some(stackaddr as *mut libc::c_void) } |