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authorBhasker Hariharan <bhaskerh@google.com>2021-03-24 12:08:24 -0700
committergVisor bot <gvisor-bot@google.com>2021-03-24 12:11:44 -0700
commite7ca2a51a89a8ff2c9f5adfdfa5b51be1b3faeb3 (patch)
tree1abf748d2755526978f560abb67f29b6f83496c7 /pkg/sentry/fs/tty/queue.go
parent72ff6a1cac6ab35132b4f79b1149590e103e5291 (diff)
Add POLLRDNORM/POLLWRNORM support.
On Linux these are meant to be equivalent to POLLIN/POLLOUT. Rather than hack these on in sys_poll etc it felt cleaner to just cleanup the call sites to notify for both events. This is what linux does as well. Fixes #5544 PiperOrigin-RevId: 364859977
Diffstat (limited to 'pkg/sentry/fs/tty/queue.go')
-rw-r--r--pkg/sentry/fs/tty/queue.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/sentry/fs/tty/queue.go b/pkg/sentry/fs/tty/queue.go
index 79975d812..11d6c15d0 100644
--- a/pkg/sentry/fs/tty/queue.go
+++ b/pkg/sentry/fs/tty/queue.go
@@ -71,7 +71,7 @@ func (q *queue) readReadiness(t *linux.KernelTermios) waiter.EventMask {
q.mu.Lock()
defer q.mu.Unlock()
if len(q.readBuf) > 0 && q.readable {
- return waiter.EventIn
+ return waiter.ReadableEvents
}
return waiter.EventMask(0)
}
@@ -81,7 +81,7 @@ func (q *queue) writeReadiness(t *linux.KernelTermios) waiter.EventMask {
q.mu.Lock()
defer q.mu.Unlock()
if q.waitBufLen < waitBufMaxBytes {
- return waiter.EventOut
+ return waiter.WritableEvents
}
return waiter.EventMask(0)
}