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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MOJO_SYSTEM_HANDLE_SIGNALS_STATE_H_
#define MOJO_SYSTEM_HANDLE_SIGNALS_STATE_H_
#include "base/macros.h"
#include "mojo/public/c/system/types.h"
#include "mojo/system/system_impl_export.h"
namespace mojo {
namespace system {
// Just "add" some constructors and methods to the C struct
// |MojoHandleSignalsState| (for convenience). This should add no overhead.
struct MOJO_SYSTEM_IMPL_EXPORT HandleSignalsState
: public MojoHandleSignalsState {
HandleSignalsState() {
satisfied_signals = MOJO_HANDLE_SIGNAL_NONE;
satisfiable_signals = MOJO_HANDLE_SIGNAL_NONE;
}
HandleSignalsState(MojoHandleSignals satisfied,
MojoHandleSignals satisfiable) {
satisfied_signals = satisfied;
satisfiable_signals = satisfiable;
}
bool equals(const HandleSignalsState& other) const {
return satisfied_signals == other.satisfied_signals &&
satisfiable_signals == other.satisfiable_signals;
}
bool satisfies(MojoHandleSignals signals) const {
return !!(satisfied_signals & signals);
}
bool can_satisfy(MojoHandleSignals signals) const {
return !!(satisfiable_signals & signals);
}
// (Copy and assignment allowed.)
};
static_assert(sizeof(HandleSignalsState) == sizeof(MojoHandleSignalsState),
"HandleSignalsState should add no overhead");
} // namespace system
} // namespace mojo
#endif // MOJO_SYSTEM_HANDLE_SIGNALS_STATE_H_
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