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Fix Thread::set_name on cygwin #138765

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merged 1 commit into from
Mar 23, 2025
Merged

Fix Thread::set_name on cygwin #138765

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5 changes: 3 additions & 2 deletions library/std/src/sys/pal/unix/thread.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -143,8 +143,8 @@ impl Thread {
pub fn set_name(name: &CStr) {
unsafe {
cfg_if::cfg_if! {
if #[cfg(target_os = "linux")] {
// Linux limits the allowed length of the name.
if #[cfg(any(target_os = "linux", target_os = "cygwin"))] {
// Linux and Cygwin limits the allowed length of the name.
const TASK_COMM_LEN: usize = 16;
let name = truncate_cstr::<{ TASK_COMM_LEN }>(name);
} else {
Expand Down Expand Up @@ -346,6 +346,7 @@ impl Drop for Thread {
target_os = "solaris",
target_os = "illumos",
target_os = "vxworks",
target_os = "cygwin",
target_vendor = "apple",
))]
fn truncate_cstr<const MAX_WITH_NUL: usize>(cstr: &CStr) -> [libc::c_char; MAX_WITH_NUL] {
Expand Down
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