Initial commit

Proof-of-concept implementation. Bugs will occur.

vendor/github.com/hanwen/go-fuse/v2/fuse/context.go

@@ -0,0 +1,61 @@
+// Copyright 2016 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 fuse
+
+import (
+	"context"
+	"time"
+)
+
+// Context passes along cancelation signal and request data (PID, GID,
+// UID).  The name of this class predates the standard "context"
+// package from Go, but it does implement the context.Context
+// interface.
+//
+// When a FUSE request is canceled, and the file system chooses to honor
+// the cancellation, the response should be EINTR.
+type Context struct {
+	Caller
+	Cancel <-chan struct{}
+}
+
+func (c *Context) Deadline() (time.Time, bool) {
+	return time.Time{}, false
+}
+
+func (c *Context) Done() <-chan struct{} {
+	return c.Cancel
+}
+
+func (c *Context) Err() error {
+	select {
+	case <-c.Cancel:
+		return context.Canceled
+	default:
+		return nil
+	}
+}
+
+type callerKeyType struct{}
+
+var callerKey callerKeyType
+
+func FromContext(ctx context.Context) (*Caller, bool) {
+	v, ok := ctx.Value(callerKey).(*Caller)
+	return v, ok
+}
+
+func NewContext(ctx context.Context, caller *Caller) context.Context {
+	return context.WithValue(ctx, callerKey, caller)
+}
+
+func (c *Context) Value(key interface{}) interface{} {
+	if key == callerKey {
+		return &c.Caller
+	}
+	return nil
+}
+
+var _ = context.Context((*Context)(nil))