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Fix pushing/popping zero-length slices to/from Channel

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Tate, Hongliang Tian 2020-11-14 05:00:30 +00:00 committed by Zongmin.Gu
parent 10f3ffa9e6
commit 798cbfd843
1 changed files with 8 additions and 0 deletions
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8
src/libos/src/fs/channel.rs
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@ -280,6 +280,10 @@ impl<I> Producer<I> {
impl<I: Copy> Producer<I> { impl<I: Copy> Producer<I> {
pub fn push_slice(&self, items: &[I]) -> Result<usize> { pub fn push_slice(&self, items: &[I]) -> Result<usize> {
if items.len() == 0 {
return Ok(0);
}
waiter_loop!( waiter_loop!(
{ {
let mut rb_producer = self.inner.lock().unwrap(); let mut rb_producer = self.inner.lock().unwrap();
@ -377,6 +381,10 @@ impl<I> Consumer<I> {
impl<I: Copy> Consumer<I> { impl<I: Copy> Consumer<I> {
pub fn pop_slice(&self, items: &mut [I]) -> Result<usize> { pub fn pop_slice(&self, items: &mut [I]) -> Result<usize> {
if items.len() == 0 {
return Ok(0);
}
waiter_loop!( waiter_loop!(
{ {
let mut rb_consumer = self.inner.lock().unwrap(); let mut rb_consumer = self.inner.lock().unwrap();