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// Copyright 2013 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.
#include "mojo/edk/system/simple_dispatcher.h"
#include "base/logging.h"
namespace mojo {
namespace edk {
SimpleDispatcher::SimpleDispatcher() {
}
SimpleDispatcher::~SimpleDispatcher() {
}
void SimpleDispatcher::HandleSignalsStateChangedNoLock() {
lock().AssertAcquired();
awakable_list_.AwakeForStateChange(GetHandleSignalsStateImplNoLock());
}
void SimpleDispatcher::CancelAllAwakablesNoLock() {
lock().AssertAcquired();
awakable_list_.CancelAll();
}
MojoResult SimpleDispatcher::AddAwakableImplNoLock(
Awakable* awakable,
MojoHandleSignals signals,
uintptr_t context,
HandleSignalsState* signals_state) {
lock().AssertAcquired();
HandleSignalsState state(GetHandleSignalsStateImplNoLock());
if (state.satisfies(signals)) {
if (signals_state)
*signals_state = state;
return MOJO_RESULT_ALREADY_EXISTS;
}
if (!state.can_satisfy(signals)) {
if (signals_state)
*signals_state = state;
return MOJO_RESULT_FAILED_PRECONDITION;
}
awakable_list_.Add(awakable, signals, context);
return MOJO_RESULT_OK;
}
void SimpleDispatcher::RemoveAwakableImplNoLock(
Awakable* awakable,
HandleSignalsState* signals_state) {
lock().AssertAcquired();
awakable_list_.Remove(awakable);
if (signals_state)
*signals_state = GetHandleSignalsStateImplNoLock();
}
} // namespace edk
} // namespace mojo
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