diff options
Diffstat (limited to 'library/std/src/sys_common/thread_local_key.rs')
| -rw-r--r-- | library/std/src/sys_common/thread_local_key.rs | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/library/std/src/sys_common/thread_local_key.rs b/library/std/src/sys_common/thread_local_key.rs index 2672a2a75..89360e456 100644 --- a/library/std/src/sys_common/thread_local_key.rs +++ b/library/std/src/sys_common/thread_local_key.rs @@ -117,9 +117,15 @@ pub struct Key { /// This value specifies no destructor by default. pub const INIT: StaticKey = StaticKey::new(None); -// Define a sentinel value that is unlikely to be returned -// as a TLS key (but it may be returned). +// Define a sentinel value that is likely not to be returned +// as a TLS key. +#[cfg(not(target_os = "nto"))] const KEY_SENTVAL: usize = 0; +// On QNX Neutrino, 0 is always returned when currently not in use. +// Using 0 would mean to always create two keys and remote the first +// one (with value of 0) immediately afterwards. +#[cfg(target_os = "nto")] +const KEY_SENTVAL: usize = libc::PTHREAD_KEYS_MAX + 1; impl StaticKey { #[rustc_const_unstable(feature = "thread_local_internals", issue = "none")] |