app_capability_access_cache.h | Explore in Territory

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_SERVICES_APP_SERVICE_PUBLIC_CPP_APP_CAPABILITY_ACCESS_CACHE_H_
#define COMPONENTS_SERVICES_APP_SERVICE_PUBLIC_CPP_APP_CAPABILITY_ACCESS_CACHE_H_

#include <map>
#include <set>
#include <vector>

#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "base/sequence_checker.h"
#include "components/account_id/account_id.h"
#include "components/services/app_service/public/cpp/capability_access.h"
#include "components/services/app_service/public/cpp/capability_access_update.h"

namespace apps {

// An in-memory cache of app capability accesses, recording which apps are using
// sensitive capabilities like camera or microphone. Can be queried
// synchronously for information about current capability usage, and can be
// observed to receive updates about changes to capability usage.
//
// AppServiceProxy sees a stream of `apps::CapabilityAccessPtr` "deltas", or
// changes in capability access, received from publishers. This cache stores the
// "sum" of those previous deltas. When a new delta is received, observers are
// presented with an `apps:::CapabilityAccessUpdate` containing information
// about what has changed, and then the new delta is "added" to the stored
// state.
//
// This class is not thread-safe.
class COMPONENT_EXPORT(APP_UPDATE) AppCapabilityAccessCache { … };

}  // namespace apps

#endif  // COMPONENTS_SERVICES_APP_SERVICE_PUBLIC_CPP_APP_CAPABILITY_ACCESS_CACHE_H_
chromium/components/services/app_service/public/cpp/app_capability_access_cache.h
