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// Copyright 2024 the Go-FUSE Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package fs
import (
"context"
"fmt"
"os"
"sync"
"syscall"
"testing"
)
type hangingRootNode struct {
Inode
openCalled chan struct{}
mu sync.Mutex
canceled bool
}
func (n *hangingRootNode) OpendirHandle(ctx context.Context, flags uint32) (fh FileHandle, fuseFlags uint32, errno syscall.Errno) {
close(n.openCalled)
select {
case <-ctx.Done():
n.mu.Lock()
n.canceled = true
n.mu.Unlock()
return nil, 0, syscall.EINTR
}
}
func TestAbort(t *testing.T) {
hr := &hangingRootNode{
openCalled: make(chan struct{}, 0),
}
dir, srv := testMount(t, hr, nil)
var st syscall.Stat_t
if err := syscall.Lstat(dir, &st); err != nil {
t.Fatal(err)
}
connectionID := st.Dev
done := make(chan error, 1)
go func() {
_, err := syscall.Open(dir, syscall.O_DIRECTORY, 0)
done <- err
close(done)
}()
<-hr.openCalled
if err := os.WriteFile(fmt.Sprintf("/sys/fs/fuse/connections/%d/abort", connectionID), []byte{}, 0); err != nil {
t.Fatal(err)
}
if err := <-done; err == nil {
t.Error("opendir should have failed")
}
// Wait until read loops have exited, so we can be sure
// cancelation was propagated.
srv.Unmount()
hr.mu.Lock()
defer hr.mu.Unlock()
if !hr.canceled {
t.Error("should have been canceled.")
}
}
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