// WithContext adds app- and request-specific values to the context.
// It is called by FUSE for normal runs, but may be called explicitly
// in other settings, such as tests.
func (f *FS) WithContext(ctx context.Context) context.Context {
ctx = context.WithValue(ctx, CtxAppIDKey, f)
logTags := make(logger.CtxLogTags)
logTags[CtxIDKey] = CtxOpID
ctx = logger.NewContextWithLogTags(ctx, logTags)
// Add a unique ID to this context, identifying a particular
// request.
id, err := libkbfs.MakeRandomRequestID()
if err != nil {
f.log.Errorf("Couldn't make request ID: %v", err)
} else {
ctx = context.WithValue(ctx, CtxIDKey, id)
}
if runtime.GOOS == "darwin" {
// Timeout operations before they hit the osxfuse time limit,
// so we don't hose the entire mount (Fixed in OSXFUSE 3.2.0).
// The timeout is 60 seconds, but it looks like sometimes it
// tries multiple attempts within that 60 seconds, so let's go
// a little under 60/3 to be safe.
//
// It should be safe to ignore the CancelFunc here because our
// parent context will be canceled by the FUSE serve loop.
ctx, _ = context.WithTimeout(ctx, 19*time.Second)
}
return ctx
}
// NewContextWithOpID adds a unique ID to this context, identifying
// a particular request.
func NewContextWithOpID(ctx context.Context,
log logger.Logger) context.Context {
if runtime.GOOS == "darwin" {
// Timeout operations before they hit the osxfuse time limit,
// so we don't hose the entire mount. The timeout is 60
// seconds, but it looks like sometimes it tries multiple
// attempts within that 60 seconds, so let's go a little under
// 60/3 to be safe.
ctx, _ = context.WithTimeout(ctx, 19*time.Second)
}
id, err := libkbfs.MakeRandomRequestID()
if err != nil {
log.Errorf("Couldn't make request ID: %v", err)
return ctx
}
return context.WithValue(ctx, CtxIDKey, id)
}