diff options
| author | Ayush Ranjan <ayushranjan@google.com> | 2020-09-01 12:59:49 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-01 13:02:17 -0700 |
| commit | 723fb5c1164872fd1de418d794aa1e9eced8fd94 (patch) | |
| tree | b929efbeb59b48afd5324713baf7bd8a62f83ea0 /pkg/sentry/fsimpl/devpts/queue.go | |
| parent | 71589b7f7e69b85820c9deb75fc6d0b6c5f00eb1 (diff) | |
[go-marshal] Enable auto-marshalling for fs/tty.
PiperOrigin-RevId: 329564614
Diffstat (limited to 'pkg/sentry/fsimpl/devpts/queue.go')
| -rw-r--r-- | pkg/sentry/fsimpl/devpts/queue.go | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/pkg/sentry/fsimpl/devpts/queue.go b/pkg/sentry/fsimpl/devpts/queue.go index 331c13997..08eca2589 100644 --- a/pkg/sentry/fsimpl/devpts/queue.go +++ b/pkg/sentry/fsimpl/devpts/queue.go @@ -19,10 +19,12 @@ import ( "gvisor.dev/gvisor/pkg/context" "gvisor.dev/gvisor/pkg/safemem" "gvisor.dev/gvisor/pkg/sentry/arch" + "gvisor.dev/gvisor/pkg/sentry/kernel" "gvisor.dev/gvisor/pkg/sync" "gvisor.dev/gvisor/pkg/syserror" "gvisor.dev/gvisor/pkg/usermem" "gvisor.dev/gvisor/pkg/waiter" + "gvisor.dev/gvisor/tools/go_marshal/primitive" ) // waitBufMaxBytes is the maximum size of a wait buffer. It is based on @@ -83,17 +85,15 @@ func (q *queue) writeReadiness(t *linux.KernelTermios) waiter.EventMask { } // readableSize writes the number of readable bytes to userspace. -func (q *queue) readableSize(ctx context.Context, io usermem.IO, args arch.SyscallArguments) error { +func (q *queue) readableSize(t *kernel.Task, io usermem.IO, args arch.SyscallArguments) error { q.mu.Lock() defer q.mu.Unlock() - var size int32 + size := primitive.Int32(0) if q.readable { - size = int32(len(q.readBuf)) + size = primitive.Int32(len(q.readBuf)) } - _, err := usermem.CopyObjectOut(ctx, io, args[2].Pointer(), size, usermem.IOOpts{ - AddressSpaceActive: true, - }) + _, err := size.CopyOut(t, args[2].Pointer()) return err } |