1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MOJO_SYSTEM_HANDLE_SIGNALS_STATE_H_
6 #define MOJO_SYSTEM_HANDLE_SIGNALS_STATE_H_
8 #include "base/macros.h"
9 #include "mojo/public/c/system/types.h"
10 #include "mojo/system/system_impl_export.h"
15 // Just "add" some constructors and methods to the C struct
16 // |MojoHandleSignalsState| (for convenience). This should add no overhead.
17 struct MOJO_SYSTEM_IMPL_EXPORT HandleSignalsState
18 : public MojoHandleSignalsState {
19 HandleSignalsState() {
20 satisfied_signals = MOJO_HANDLE_SIGNAL_NONE;
21 satisfiable_signals = MOJO_HANDLE_SIGNAL_NONE;
23 HandleSignalsState(MojoHandleSignals satisfied,
24 MojoHandleSignals satisfiable) {
25 satisfied_signals = satisfied;
26 satisfiable_signals = satisfiable;
29 bool equals(const HandleSignalsState& other) const {
30 return satisfied_signals == other.satisfied_signals &&
31 satisfiable_signals == other.satisfiable_signals;
34 bool satisfies(MojoHandleSignals signals) const {
35 return !!(satisfied_signals & signals);
38 bool can_satisfy(MojoHandleSignals signals) const {
39 return !!(satisfiable_signals & signals);
42 // (Copy and assignment allowed.)
44 static_assert(sizeof(HandleSignalsState) == sizeof(MojoHandleSignalsState),
45 "HandleSignalsState should add no overhead");
50 #endif // MOJO_SYSTEM_HANDLE_SIGNALS_STATE_H_