From be0f98a78eccf23f615dba07ec7f8c4cc1ba6eb0 Mon Sep 17 00:00:00 2001
From: Hiroki Noda <kubo39@gmail.com>
Date: Wed, 15 Apr 2020 08:52:05 +0900
Subject: [PATCH] Add CPU_ALLOC_SIZE
Co-Authored-By: Yuki Okushi <huyuumi.dev@gmail.com>
---
src/unix/linux_like/linux/mod.rs | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index 5e410a66..27d5ab22 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -2620,6 +2620,12 @@ f! {
}
}
+ pub fn CPU_ALLOC_SIZE(count: ::c_int) -> ::size_t {
+ let _dummy: cpu_set_t = ::mem::zeroed();
+ let size_in_bits = 8 * ::mem::size_of_val(&_dummy.bits[0]);
+ ((count as ::size_t + size_in_bits - 1) / 8) as ::size_t
+ }
+
pub fn CPU_ZERO(cpuset: &mut cpu_set_t) -> () {
for slot in cpuset.bits.iter_mut() {
*slot = 0;
--
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