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208 lines
7.8 KiB
208 lines
7.8 KiB
/*
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**
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** Copyright 2015, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef ANDROID_MEDIA_RESOURCEMANAGERSERVICE_H
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#define ANDROID_MEDIA_RESOURCEMANAGERSERVICE_H
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#include <map>
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#include <mutex>
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#include <aidl/android/media/BnResourceManagerService.h>
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#include <arpa/inet.h>
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#include <media/MediaResource.h>
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <utils/String8.h>
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#include <utils/threads.h>
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#include <utils/Vector.h>
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namespace android {
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class DeathNotifier;
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class ResourceManagerService;
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class ResourceObserverService;
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class ServiceLog;
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struct ProcessInfoInterface;
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using Status = ::ndk::ScopedAStatus;
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using ::aidl::android::media::IResourceManagerClient;
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using ::aidl::android::media::BnResourceManagerService;
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using ::aidl::android::media::MediaResourceParcel;
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using ::aidl::android::media::MediaResourcePolicyParcel;
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typedef std::map<std::tuple<
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MediaResource::Type, MediaResource::SubType, std::vector<uint8_t>>,
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MediaResourceParcel> ResourceList;
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struct ResourceInfo {
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int64_t clientId;
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uid_t uid;
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std::shared_ptr<IResourceManagerClient> client;
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uintptr_t cookie{0};
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ResourceList resources;
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bool pendingRemoval{false};
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};
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// TODO: convert these to std::map
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typedef KeyedVector<int64_t, ResourceInfo> ResourceInfos;
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typedef KeyedVector<int, ResourceInfos> PidResourceInfosMap;
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class ResourceManagerService : public BnResourceManagerService {
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public:
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struct SystemCallbackInterface : public RefBase {
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virtual void noteStartVideo(int uid) = 0;
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virtual void noteStopVideo(int uid) = 0;
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virtual void noteResetVideo() = 0;
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virtual bool requestCpusetBoost(bool enable) = 0;
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};
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static char const *getServiceName() { return "media.resource_manager"; }
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static void instantiate();
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virtual inline binder_status_t dump(
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int /*fd*/, const char** /*args*/, uint32_t /*numArgs*/);
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ResourceManagerService();
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explicit ResourceManagerService(
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const sp<ProcessInfoInterface> &processInfo,
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const sp<SystemCallbackInterface> &systemResource);
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virtual ~ResourceManagerService();
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void setObserverService(
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const std::shared_ptr<ResourceObserverService>& observerService);
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// IResourceManagerService interface
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Status config(const std::vector<MediaResourcePolicyParcel>& policies) override;
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Status addResource(
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int32_t pid,
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int32_t uid,
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int64_t clientId,
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const std::shared_ptr<IResourceManagerClient>& client,
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const std::vector<MediaResourceParcel>& resources) override;
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Status removeResource(
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int32_t pid,
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int64_t clientId,
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const std::vector<MediaResourceParcel>& resources) override;
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Status removeClient(int32_t pid, int64_t clientId) override;
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// Tries to reclaim resource from processes with lower priority than the calling process
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// according to the requested resources.
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// Returns true if any resource has been reclaimed, otherwise returns false.
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Status reclaimResource(
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int32_t callingPid,
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const std::vector<MediaResourceParcel>& resources,
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bool* _aidl_return) override;
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Status overridePid(
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int originalPid,
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int newPid) override;
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Status overrideProcessInfo(
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const std::shared_ptr<IResourceManagerClient>& client,
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int pid,
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int procState,
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int oomScore) override;
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Status markClientForPendingRemoval(int32_t pid, int64_t clientId) override;
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Status reclaimResourcesFromClientsPendingRemoval(int32_t pid) override;
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Status removeResource(int pid, int64_t clientId, bool checkValid);
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private:
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friend class ResourceManagerServiceTest;
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friend class DeathNotifier;
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friend class OverrideProcessInfoDeathNotifier;
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// Reclaims resources from |clients|. Returns true if reclaim succeeded
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// for all clients.
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bool reclaimInternal(
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const Vector<std::shared_ptr<IResourceManagerClient>> &clients);
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// Gets the list of all the clients who own the specified resource type.
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// Returns false if any client belongs to a process with higher priority than the
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// calling process. The clients will remain unchanged if returns false.
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bool getAllClients_l(int callingPid, MediaResource::Type type,
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Vector<std::shared_ptr<IResourceManagerClient>> *clients);
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// Gets the client who owns specified resource type from lowest possible priority process.
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// Returns false if the calling process priority is not higher than the lowest process
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// priority. The client will remain unchanged if returns false.
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bool getLowestPriorityBiggestClient_l(int callingPid, MediaResource::Type type,
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std::shared_ptr<IResourceManagerClient> *client);
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// Gets lowest priority process that has the specified resource type.
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// Returns false if failed. The output parameters will remain unchanged if failed.
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bool getLowestPriorityPid_l(MediaResource::Type type, int *pid, int *priority);
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// Gets the client who owns biggest piece of specified resource type from pid.
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// Returns false if failed. The client will remain unchanged if failed.
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bool getBiggestClient_l(int pid, MediaResource::Type type,
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std::shared_ptr<IResourceManagerClient> *client,
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bool pendingRemovalOnly = false);
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bool isCallingPriorityHigher_l(int callingPid, int pid);
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// A helper function basically calls getLowestPriorityBiggestClient_l and add
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// the result client to the given Vector.
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void getClientForResource_l(int callingPid, const MediaResourceParcel *res,
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Vector<std::shared_ptr<IResourceManagerClient>> *clients);
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void onFirstAdded(const MediaResourceParcel& res, const ResourceInfo& clientInfo);
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void onLastRemoved(const MediaResourceParcel& res, const ResourceInfo& clientInfo);
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// Merge r2 into r1
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void mergeResources(MediaResourceParcel& r1, const MediaResourceParcel& r2);
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// Get priority from process's pid
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bool getPriority_l(int pid, int* priority);
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void removeProcessInfoOverride(int pid);
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void removeProcessInfoOverride_l(int pid);
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uintptr_t addCookieAndLink_l(::ndk::SpAIBinder binder, const sp<DeathNotifier>& notifier);
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void removeCookieAndUnlink_l(::ndk::SpAIBinder binder, uintptr_t cookie);
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mutable Mutex mLock;
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sp<ProcessInfoInterface> mProcessInfo;
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sp<SystemCallbackInterface> mSystemCB;
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sp<ServiceLog> mServiceLog;
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PidResourceInfosMap mMap;
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bool mSupportsMultipleSecureCodecs;
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bool mSupportsSecureWithNonSecureCodec;
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int32_t mCpuBoostCount;
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::ndk::ScopedAIBinder_DeathRecipient mDeathRecipient;
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struct ProcessInfoOverride {
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uintptr_t cookie;
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std::shared_ptr<IResourceManagerClient> client;
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};
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std::map<int, int> mOverridePidMap;
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std::map<pid_t, ProcessInfoOverride> mProcessInfoOverrideMap;
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static std::mutex sCookieLock;
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static uintptr_t sCookieCounter GUARDED_BY(sCookieLock);
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static std::map<uintptr_t, sp<DeathNotifier> > sCookieToDeathNotifierMap
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GUARDED_BY(sCookieLock);
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std::shared_ptr<ResourceObserverService> mObserverService;
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};
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// ----------------------------------------------------------------------------
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} // namespace android
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#endif // ANDROID_MEDIA_RESOURCEMANAGERSERVICE_H
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