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thread::set_name: debug-assert that things went well

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This commit is contained in:
Ralf Jung 2022-10-26 22:11:12 +02:00
parent d49e7e7fa1
commit d1132fb805
1 changed files with 10 additions and 6 deletions
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16
library/std/src/sys/unix/thread.rs
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@ -137,7 +137,9 @@ impl Thread {
unsafe {
// Available since glibc 2.12, musl 1.1.16, and uClibc 1.0.20.
let name = truncate_cstr(name, TASK_COMM_LEN);
libc::pthread_setname_np(libc::pthread_self(), name.as_ptr());
let res = libc::pthread_setname_np(libc::pthread_self(), name.as_ptr());
// We have no good way of propagating errors here, but in debug-builds let's check that this actually worked.
debug_assert_eq!(res, 0);
}
}
@ -152,7 +154,9 @@ impl Thread {
pub fn set_name(name: &CStr) {
unsafe {
let name = truncate_cstr(name, libc::MAXTHREADNAMESIZE);
libc::pthread_setname_np(name.as_ptr());
let res = libc::pthread_setname_np(name.as_ptr());
// We have no good way of propagating errors here, but in debug-builds let's check that this actually worked.
debug_assert_eq!(res, 0);
}
}
@ -160,11 +164,12 @@ impl Thread {
pub fn set_name(name: &CStr) {
unsafe {
let cname = CStr::from_bytes_with_nul_unchecked(b"%s\0".as_slice());
libc::pthread_setname_np(
let res = libc::pthread_setname_np(
libc::pthread_self(),
cname.as_ptr(),
name.as_ptr() as *mut libc::c_void,
);
debug_assert_eq!(res, 0);
}
}
@ -177,9 +182,8 @@ impl Thread {
}
if let Some(f) = pthread_setname_np.get() {
unsafe {
f(libc::pthread_self(), name.as_ptr());
}
let res = unsafe { f(libc::pthread_self(), name.as_ptr()) };
debug_assert_eq!(res, 0);
}
}