diff options
| -rw-r--r-- | library/std/src/sys/pal/unix/thread.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index 6520ca9fc48..9befcb0e3e6 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -483,6 +483,12 @@ pub fn available_parallelism() -> io::Result<NonZero<usize>> { .ok_or(io::const_io_error!(io::ErrorKind::NotFound, "The number of hardware threads is not known for the target platform")) } } + } else if #[cfg(any(target_os = "solaris", target_os = "illumos"))] { + let mut cpus = 0u32; + if unsafe { libc::pset_info(libc::PS_MYID, core::ptr::null_mut(), &mut cpus, core::ptr::null_mut()) } == 0 { + NonZero::new(cpus as usize) + .ok_or(io::const_io_error!(io::ErrorKind::NotFound, "The number of hardware threads is not known for the target platform")) + } } else if #[cfg(target_os = "haiku")] { // system_info cpu_count field gets the static data set at boot time with `smp_set_num_cpus` // `get_system_info` calls then `smp_get_num_cpus` |