chromium/mojo/core/ipcz_driver/mojo_trap.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MOJO_CORE_IPCZ_DRIVER_MOJO_TRAP_H_
#define MOJO_CORE_IPCZ_DRIVER_MOJO_TRAP_H_

#include <cstdint>
#include <optional>

#include "base/containers/flat_map.h"
#include "base/containers/span.h"
#include "base/memory/scoped_refptr.h"
#include "base/synchronization/condition_variable.h"
#include "base/synchronization/lock.h"
#include "base/threading/platform_thread_ref.h"
#include "mojo/core/ipcz_driver/object.h"
#include "mojo/public/c/system/trap.h"
#include "mojo/public/c/system/types.h"
#include "third_party/abseil-cpp/absl/container/inlined_vector.h"
#include "third_party/ipcz/include/ipcz/ipcz.h"

namespace mojo::core::ipcz_driver {

// Mojo traps are more complex than ipcz traps. A Mojo trap is approximately
// equivalent to a *collection* of ipcz traps (which Mojo would call "triggers"
// within a trap) sharing a common event handler.
//
// A Mojo trap can only be armed while all of its triggers' conditions are
// simultaneously unsatisfied. This object emulates that behavior well enough to
// suit Chromium's needs.
class MojoTrap : public Object<MojoTrap> { … };

}  // namespace mojo::core::ipcz_driver

#endif  // MOJO_CORE_IPCZ_DRIVER_MOJO_TRAP_H_