Method c

tensorflow/go/session.go:323–350

c converts the SessionOptions to the C API's TF_SessionOptions. Callers must deallocate by calling the returned done() closure.

()

// c converts the SessionOptions to the C API's TF_SessionOptions. Callers must
// deallocate by calling the returned done() closure.
func (o *SessionOptions) c() (ret *C.TF_SessionOptions, done func(), err error) {
	opt := C.TF_NewSessionOptions()
	if o == nil {
		return opt, func() { C.TF_DeleteSessionOptions(opt) }, nil
	}
	t := C.CString(o.Target)
	C.TF_SetTarget(opt, t)
	C.free(unsafe.Pointer(t))

	var cConfig unsafe.Pointer
	if sz := len(o.Config); sz > 0 {
		status := newStatus()
		// Copying into C-memory is the simplest thing to do in terms
		// of memory safety and cgo rules ("C code may not keep a copy
		// of a Go pointer after the call returns" from
		// https://golang.org/cmd/cgo/#hdr-Passing_pointers).
		cConfig = C.CBytes(o.Config)
		C.TF_SetConfig(opt, cConfig, C.size_t(sz), status.c)
		if err := status.Err(); err != nil {
			C.TF_DeleteSessionOptions(opt)
			return nil, func() {}, fmt.Errorf("invalid SessionOptions.Config: %v", err)
		}
	}
	return opt, func() {
		C.TF_DeleteSessionOptions(opt)
		C.free(cConfig)
	}, nil
}

// cRunArgs translates the arguments to Session.Run and PartialRun.Run into
// values suitable for C library calls.