| /* |
| ** |
| ** Copyright 2015, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "ResourceManagerService" |
| #include <utils/Log.h> |
| |
| #include <android/binder_manager.h> |
| #include <android/binder_process.h> |
| #include <binder/IPCThreadState.h> |
| #include <binder/IServiceManager.h> |
| #include <cutils/sched_policy.h> |
| #include <dirent.h> |
| #include <media/MediaResourcePolicy.h> |
| #include <media/stagefright/ProcessInfo.h> |
| #include <mediautils/BatteryNotifier.h> |
| #include <mediautils/SchedulingPolicyService.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include <unistd.h> |
| |
| #include "IMediaResourceMonitor.h" |
| #include "ResourceManagerService.h" |
| #include "ResourceObserverService.h" |
| #include "ServiceLog.h" |
| |
| namespace android { |
| |
| //static |
| std::mutex ResourceManagerService::sCookieLock; |
| //static |
| uintptr_t ResourceManagerService::sCookieCounter = 0; |
| //static |
| std::map<uintptr_t, sp<DeathNotifier> > ResourceManagerService::sCookieToDeathNotifierMap; |
| |
| class DeathNotifier : public RefBase { |
| public: |
| DeathNotifier(const std::shared_ptr<ResourceManagerService> &service, |
| int pid, int64_t clientId); |
| |
| virtual ~DeathNotifier() {} |
| |
| // Implement death recipient |
| static void BinderDiedCallback(void* cookie); |
| virtual void binderDied(); |
| |
| protected: |
| std::weak_ptr<ResourceManagerService> mService; |
| int mPid; |
| int64_t mClientId; |
| }; |
| |
| DeathNotifier::DeathNotifier(const std::shared_ptr<ResourceManagerService> &service, |
| int pid, int64_t clientId) |
| : mService(service), mPid(pid), mClientId(clientId) {} |
| |
| //static |
| void DeathNotifier::BinderDiedCallback(void* cookie) { |
| sp<DeathNotifier> notifier; |
| { |
| std::scoped_lock lock{ResourceManagerService::sCookieLock}; |
| auto it = ResourceManagerService::sCookieToDeathNotifierMap.find( |
| reinterpret_cast<uintptr_t>(cookie)); |
| if (it == ResourceManagerService::sCookieToDeathNotifierMap.end()) { |
| return; |
| } |
| notifier = it->second; |
| } |
| if (notifier.get() != nullptr) { |
| notifier->binderDied(); |
| } |
| } |
| |
| void DeathNotifier::binderDied() { |
| // Don't check for pid validity since we know it's already dead. |
| std::shared_ptr<ResourceManagerService> service = mService.lock(); |
| if (service == nullptr) { |
| ALOGW("ResourceManagerService is dead as well."); |
| return; |
| } |
| |
| service->overridePid(mPid, -1); |
| // thiz is freed in the call below, so it must be last call referring thiz |
| service->removeResource(mPid, mClientId, false /*checkValid*/); |
| } |
| |
| class OverrideProcessInfoDeathNotifier : public DeathNotifier { |
| public: |
| OverrideProcessInfoDeathNotifier(const std::shared_ptr<ResourceManagerService> &service, |
| int pid) : DeathNotifier(service, pid, 0) {} |
| |
| virtual ~OverrideProcessInfoDeathNotifier() {} |
| |
| virtual void binderDied(); |
| }; |
| |
| void OverrideProcessInfoDeathNotifier::binderDied() { |
| // Don't check for pid validity since we know it's already dead. |
| std::shared_ptr<ResourceManagerService> service = mService.lock(); |
| if (service == nullptr) { |
| ALOGW("ResourceManagerService is dead as well."); |
| return; |
| } |
| |
| service->removeProcessInfoOverride(mPid); |
| } |
| |
| template <typename T> |
| static String8 getString(const std::vector<T> &items) { |
| String8 itemsStr; |
| for (size_t i = 0; i < items.size(); ++i) { |
| itemsStr.appendFormat("%s ", toString(items[i]).string()); |
| } |
| return itemsStr; |
| } |
| |
| static bool hasResourceType(MediaResource::Type type, const ResourceList& resources) { |
| for (auto it = resources.begin(); it != resources.end(); it++) { |
| if (it->second.type == type) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static bool hasResourceType(MediaResource::Type type, const ResourceInfos& infos) { |
| for (size_t i = 0; i < infos.size(); ++i) { |
| if (hasResourceType(type, infos[i].resources)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static ResourceInfos& getResourceInfosForEdit( |
| int pid, |
| PidResourceInfosMap& map) { |
| ssize_t index = map.indexOfKey(pid); |
| if (index < 0) { |
| // new pid |
| ResourceInfos infosForPid; |
| map.add(pid, infosForPid); |
| } |
| |
| return map.editValueFor(pid); |
| } |
| |
| static ResourceInfo& getResourceInfoForEdit( |
| uid_t uid, |
| int64_t clientId, |
| const std::shared_ptr<IResourceManagerClient>& client, |
| ResourceInfos& infos) { |
| ssize_t index = infos.indexOfKey(clientId); |
| |
| if (index < 0) { |
| ResourceInfo info; |
| info.uid = uid; |
| info.clientId = clientId; |
| info.client = client; |
| info.cookie = 0; |
| info.pendingRemoval = false; |
| |
| index = infos.add(clientId, info); |
| } |
| |
| return infos.editValueAt(index); |
| } |
| |
| static void notifyResourceGranted(int pid, const std::vector<MediaResourceParcel> &resources) { |
| static const char* const kServiceName = "media_resource_monitor"; |
| sp<IBinder> binder = defaultServiceManager()->checkService(String16(kServiceName)); |
| if (binder != NULL) { |
| sp<IMediaResourceMonitor> service = interface_cast<IMediaResourceMonitor>(binder); |
| for (size_t i = 0; i < resources.size(); ++i) { |
| if (resources[i].subType == MediaResource::SubType::kAudioCodec) { |
| service->notifyResourceGranted(pid, IMediaResourceMonitor::TYPE_AUDIO_CODEC); |
| } else if (resources[i].subType == MediaResource::SubType::kVideoCodec) { |
| service->notifyResourceGranted(pid, IMediaResourceMonitor::TYPE_VIDEO_CODEC); |
| } |
| } |
| } |
| } |
| |
| binder_status_t ResourceManagerService::dump( |
| int fd, const char** /*args*/, uint32_t /*numArgs*/) { |
| String8 result; |
| |
| if (checkCallingPermission(String16("android.permission.DUMP")) == false) { |
| result.format("Permission Denial: " |
| "can't dump ResourceManagerService from pid=%d, uid=%d\n", |
| AIBinder_getCallingPid(), |
| AIBinder_getCallingUid()); |
| write(fd, result.string(), result.size()); |
| return PERMISSION_DENIED; |
| } |
| |
| PidResourceInfosMap mapCopy; |
| bool supportsMultipleSecureCodecs; |
| bool supportsSecureWithNonSecureCodec; |
| std::map<int, int> overridePidMapCopy; |
| String8 serviceLog; |
| { |
| Mutex::Autolock lock(mLock); |
| mapCopy = mMap; // Shadow copy, real copy will happen on write. |
| supportsMultipleSecureCodecs = mSupportsMultipleSecureCodecs; |
| supportsSecureWithNonSecureCodec = mSupportsSecureWithNonSecureCodec; |
| serviceLog = mServiceLog->toString(" " /* linePrefix */); |
| overridePidMapCopy = mOverridePidMap; |
| } |
| |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| snprintf(buffer, SIZE, "ResourceManagerService: %p\n", this); |
| result.append(buffer); |
| result.append(" Policies:\n"); |
| snprintf(buffer, SIZE, " SupportsMultipleSecureCodecs: %d\n", supportsMultipleSecureCodecs); |
| result.append(buffer); |
| snprintf(buffer, SIZE, " SupportsSecureWithNonSecureCodec: %d\n", |
| supportsSecureWithNonSecureCodec); |
| result.append(buffer); |
| |
| result.append(" Processes:\n"); |
| for (size_t i = 0; i < mapCopy.size(); ++i) { |
| snprintf(buffer, SIZE, " Pid: %d\n", mapCopy.keyAt(i)); |
| result.append(buffer); |
| |
| const ResourceInfos &infos = mapCopy.valueAt(i); |
| for (size_t j = 0; j < infos.size(); ++j) { |
| result.append(" Client:\n"); |
| snprintf(buffer, SIZE, " Id: %lld\n", (long long)infos[j].clientId); |
| result.append(buffer); |
| |
| std::string clientName; |
| Status status = infos[j].client->getName(&clientName); |
| if (!status.isOk()) { |
| clientName = "<unknown client>"; |
| } |
| snprintf(buffer, SIZE, " Name: %s\n", clientName.c_str()); |
| result.append(buffer); |
| |
| const ResourceList &resources = infos[j].resources; |
| result.append(" Resources:\n"); |
| for (auto it = resources.begin(); it != resources.end(); it++) { |
| snprintf(buffer, SIZE, " %s\n", toString(it->second).string()); |
| result.append(buffer); |
| } |
| } |
| } |
| result.append(" Process Pid override:\n"); |
| for (auto it = overridePidMapCopy.begin(); it != overridePidMapCopy.end(); ++it) { |
| snprintf(buffer, SIZE, " Original Pid: %d, Override Pid: %d\n", |
| it->first, it->second); |
| result.append(buffer); |
| } |
| result.append(" Events logs (most recent at top):\n"); |
| result.append(serviceLog); |
| |
| write(fd, result.string(), result.size()); |
| return OK; |
| } |
| |
| struct SystemCallbackImpl : |
| public ResourceManagerService::SystemCallbackInterface { |
| SystemCallbackImpl() : mClientToken(new BBinder()) {} |
| |
| virtual void noteStartVideo(int uid) override { |
| BatteryNotifier::getInstance().noteStartVideo(uid); |
| } |
| virtual void noteStopVideo(int uid) override { |
| BatteryNotifier::getInstance().noteStopVideo(uid); |
| } |
| virtual void noteResetVideo() override { |
| BatteryNotifier::getInstance().noteResetVideo(); |
| } |
| virtual bool requestCpusetBoost(bool enable) override { |
| return android::requestCpusetBoost(enable, mClientToken); |
| } |
| |
| protected: |
| virtual ~SystemCallbackImpl() {} |
| |
| private: |
| DISALLOW_EVIL_CONSTRUCTORS(SystemCallbackImpl); |
| sp<IBinder> mClientToken; |
| }; |
| |
| ResourceManagerService::ResourceManagerService() |
| : ResourceManagerService(new ProcessInfo(), new SystemCallbackImpl()) {} |
| |
| ResourceManagerService::ResourceManagerService( |
| const sp<ProcessInfoInterface> &processInfo, |
| const sp<SystemCallbackInterface> &systemResource) |
| : mProcessInfo(processInfo), |
| mSystemCB(systemResource), |
| mServiceLog(new ServiceLog()), |
| mSupportsMultipleSecureCodecs(true), |
| mSupportsSecureWithNonSecureCodec(true), |
| mCpuBoostCount(0), |
| mDeathRecipient(AIBinder_DeathRecipient_new(DeathNotifier::BinderDiedCallback)) { |
| mSystemCB->noteResetVideo(); |
| } |
| |
| //static |
| void ResourceManagerService::instantiate() { |
| std::shared_ptr<ResourceManagerService> service = |
| ::ndk::SharedRefBase::make<ResourceManagerService>(); |
| binder_status_t status = |
| AServiceManager_addService(service->asBinder().get(), getServiceName()); |
| if (status != STATUS_OK) { |
| return; |
| } |
| |
| std::shared_ptr<ResourceObserverService> observerService = |
| ResourceObserverService::instantiate(); |
| |
| if (observerService != nullptr) { |
| service->setObserverService(observerService); |
| } |
| // TODO: mediaserver main() is already starting the thread pool, |
| // move this to mediaserver main() when other services in mediaserver |
| // are converted to ndk-platform aidl. |
| //ABinderProcess_startThreadPool(); |
| } |
| |
| ResourceManagerService::~ResourceManagerService() {} |
| |
| void ResourceManagerService::setObserverService( |
| const std::shared_ptr<ResourceObserverService>& observerService) { |
| mObserverService = observerService; |
| } |
| |
| Status ResourceManagerService::config(const std::vector<MediaResourcePolicyParcel>& policies) { |
| String8 log = String8::format("config(%s)", getString(policies).string()); |
| mServiceLog->add(log); |
| |
| Mutex::Autolock lock(mLock); |
| for (size_t i = 0; i < policies.size(); ++i) { |
| const std::string &type = policies[i].type; |
| const std::string &value = policies[i].value; |
| if (type == MediaResourcePolicy::kPolicySupportsMultipleSecureCodecs()) { |
| mSupportsMultipleSecureCodecs = (value == "true"); |
| } else if (type == MediaResourcePolicy::kPolicySupportsSecureWithNonSecureCodec()) { |
| mSupportsSecureWithNonSecureCodec = (value == "true"); |
| } |
| } |
| return Status::ok(); |
| } |
| |
| void ResourceManagerService::onFirstAdded( |
| const MediaResourceParcel& resource, const ResourceInfo& clientInfo) { |
| // first time added |
| if (resource.type == MediaResource::Type::kCpuBoost |
| && resource.subType == MediaResource::SubType::kUnspecifiedSubType) { |
| // Request it on every new instance of kCpuBoost, as the media.codec |
| // could have died, if we only do it the first time subsequent instances |
| // never gets the boost. |
| if (mSystemCB->requestCpusetBoost(true) != OK) { |
| ALOGW("couldn't request cpuset boost"); |
| } |
| mCpuBoostCount++; |
| } else if (resource.type == MediaResource::Type::kBattery |
| && resource.subType == MediaResource::SubType::kVideoCodec) { |
| mSystemCB->noteStartVideo(clientInfo.uid); |
| } |
| } |
| |
| void ResourceManagerService::onLastRemoved( |
| const MediaResourceParcel& resource, const ResourceInfo& clientInfo) { |
| if (resource.type == MediaResource::Type::kCpuBoost |
| && resource.subType == MediaResource::SubType::kUnspecifiedSubType |
| && mCpuBoostCount > 0) { |
| if (--mCpuBoostCount == 0) { |
| mSystemCB->requestCpusetBoost(false); |
| } |
| } else if (resource.type == MediaResource::Type::kBattery |
| && resource.subType == MediaResource::SubType::kVideoCodec) { |
| mSystemCB->noteStopVideo(clientInfo.uid); |
| } |
| } |
| |
| void ResourceManagerService::mergeResources( |
| MediaResourceParcel& r1, const MediaResourceParcel& r2) { |
| // The resource entry on record is maintained to be in [0,INT64_MAX]. |
| // Clamp if merging in the new resource value causes it to go out of bound. |
| // Note that the new resource value could be negative, eg.DrmSession, the |
| // value goes lower when the session is used more often. During reclaim |
| // the session with the highest value (lowest usage) would be closed. |
| if (r2.value < INT64_MAX - r1.value) { |
| r1.value += r2.value; |
| if (r1.value < 0) { |
| r1.value = 0; |
| } |
| } else { |
| r1.value = INT64_MAX; |
| } |
| } |
| |
| Status ResourceManagerService::addResource( |
| int32_t pid, |
| int32_t uid, |
| int64_t clientId, |
| const std::shared_ptr<IResourceManagerClient>& client, |
| const std::vector<MediaResourceParcel>& resources) { |
| String8 log = String8::format("addResource(pid %d, clientId %lld, resources %s)", |
| pid, (long long) clientId, getString(resources).string()); |
| mServiceLog->add(log); |
| |
| Mutex::Autolock lock(mLock); |
| if (!mProcessInfo->isValidPid(pid)) { |
| pid_t callingPid = IPCThreadState::self()->getCallingPid(); |
| uid_t callingUid = IPCThreadState::self()->getCallingUid(); |
| ALOGW("%s called with untrusted pid %d, using calling pid %d, uid %d", __FUNCTION__, |
| pid, callingPid, callingUid); |
| pid = callingPid; |
| uid = callingUid; |
| } |
| ResourceInfos& infos = getResourceInfosForEdit(pid, mMap); |
| ResourceInfo& info = getResourceInfoForEdit(uid, clientId, client, infos); |
| ResourceList resourceAdded; |
| |
| for (size_t i = 0; i < resources.size(); ++i) { |
| const auto &res = resources[i]; |
| const auto resType = std::tuple(res.type, res.subType, res.id); |
| |
| if (res.value < 0 && res.type != MediaResource::Type::kDrmSession) { |
| ALOGW("Ignoring request to remove negative value of non-drm resource"); |
| continue; |
| } |
| if (info.resources.find(resType) == info.resources.end()) { |
| if (res.value <= 0) { |
| // We can't init a new entry with negative value, although it's allowed |
| // to merge in negative values after the initial add. |
| ALOGW("Ignoring request to add new resource entry with value <= 0"); |
| continue; |
| } |
| onFirstAdded(res, info); |
| info.resources[resType] = res; |
| } else { |
| mergeResources(info.resources[resType], res); |
| } |
| // Add it to the list of added resources for observers. |
| auto it = resourceAdded.find(resType); |
| if (it == resourceAdded.end()) { |
| resourceAdded[resType] = res; |
| } else { |
| mergeResources(it->second, res); |
| } |
| } |
| if (info.cookie == 0 && client != nullptr) { |
| info.cookie = addCookieAndLink_l(client->asBinder(), |
| new DeathNotifier(ref<ResourceManagerService>(), pid, clientId)); |
| } |
| if (mObserverService != nullptr && !resourceAdded.empty()) { |
| mObserverService->onResourceAdded(uid, pid, resourceAdded); |
| } |
| notifyResourceGranted(pid, resources); |
| return Status::ok(); |
| } |
| |
| Status ResourceManagerService::removeResource( |
| int32_t pid, int64_t clientId, |
| const std::vector<MediaResourceParcel>& resources) { |
| String8 log = String8::format("removeResource(pid %d, clientId %lld, resources %s)", |
| pid, (long long) clientId, getString(resources).string()); |
| mServiceLog->add(log); |
| |
| Mutex::Autolock lock(mLock); |
| if (!mProcessInfo->isValidPid(pid)) { |
| pid_t callingPid = IPCThreadState::self()->getCallingPid(); |
| ALOGW("%s called with untrusted pid %d, using calling pid %d", __FUNCTION__, |
| pid, callingPid); |
| pid = callingPid; |
| } |
| ssize_t index = mMap.indexOfKey(pid); |
| if (index < 0) { |
| ALOGV("removeResource: didn't find pid %d for clientId %lld", pid, (long long) clientId); |
| return Status::ok(); |
| } |
| ResourceInfos &infos = mMap.editValueAt(index); |
| |
| index = infos.indexOfKey(clientId); |
| if (index < 0) { |
| ALOGV("removeResource: didn't find clientId %lld", (long long) clientId); |
| return Status::ok(); |
| } |
| |
| ResourceInfo &info = infos.editValueAt(index); |
| ResourceList resourceRemoved; |
| for (size_t i = 0; i < resources.size(); ++i) { |
| const auto &res = resources[i]; |
| const auto resType = std::tuple(res.type, res.subType, res.id); |
| |
| if (res.value < 0) { |
| ALOGW("Ignoring request to remove negative value of resource"); |
| continue; |
| } |
| // ignore if we don't have it |
| if (info.resources.find(resType) != info.resources.end()) { |
| MediaResourceParcel &resource = info.resources[resType]; |
| MediaResourceParcel actualRemoved = res; |
| if (resource.value > res.value) { |
| resource.value -= res.value; |
| } else { |
| onLastRemoved(res, info); |
| actualRemoved.value = resource.value; |
| info.resources.erase(resType); |
| } |
| |
| // Add it to the list of removed resources for observers. |
| auto it = resourceRemoved.find(resType); |
| if (it == resourceRemoved.end()) { |
| resourceRemoved[resType] = actualRemoved; |
| } else { |
| mergeResources(it->second, actualRemoved); |
| } |
| } |
| } |
| if (mObserverService != nullptr && !resourceRemoved.empty()) { |
| mObserverService->onResourceRemoved(info.uid, pid, resourceRemoved); |
| } |
| return Status::ok(); |
| } |
| |
| Status ResourceManagerService::removeClient(int32_t pid, int64_t clientId) { |
| removeResource(pid, clientId, true /*checkValid*/); |
| return Status::ok(); |
| } |
| |
| Status ResourceManagerService::removeResource(int pid, int64_t clientId, bool checkValid) { |
| String8 log = String8::format( |
| "removeResource(pid %d, clientId %lld)", |
| pid, (long long) clientId); |
| mServiceLog->add(log); |
| |
| Mutex::Autolock lock(mLock); |
| if (checkValid && !mProcessInfo->isValidPid(pid)) { |
| pid_t callingPid = IPCThreadState::self()->getCallingPid(); |
| ALOGW("%s called with untrusted pid %d, using calling pid %d", __FUNCTION__, |
| pid, callingPid); |
| pid = callingPid; |
| } |
| ssize_t index = mMap.indexOfKey(pid); |
| if (index < 0) { |
| ALOGV("removeResource: didn't find pid %d for clientId %lld", pid, (long long) clientId); |
| return Status::ok(); |
| } |
| ResourceInfos &infos = mMap.editValueAt(index); |
| |
| index = infos.indexOfKey(clientId); |
| if (index < 0) { |
| ALOGV("removeResource: didn't find clientId %lld", (long long) clientId); |
| return Status::ok(); |
| } |
| |
| const ResourceInfo &info = infos[index]; |
| for (auto it = info.resources.begin(); it != info.resources.end(); it++) { |
| onLastRemoved(it->second, info); |
| } |
| |
| removeCookieAndUnlink_l(info.client->asBinder(), info.cookie); |
| |
| if (mObserverService != nullptr && !info.resources.empty()) { |
| mObserverService->onResourceRemoved(info.uid, pid, info.resources); |
| } |
| |
| infos.removeItemsAt(index); |
| return Status::ok(); |
| } |
| |
| void ResourceManagerService::getClientForResource_l( |
| int callingPid, const MediaResourceParcel *res, |
| Vector<std::shared_ptr<IResourceManagerClient>> *clients) { |
| if (res == NULL) { |
| return; |
| } |
| std::shared_ptr<IResourceManagerClient> client; |
| if (getLowestPriorityBiggestClient_l(callingPid, res->type, &client)) { |
| clients->push_back(client); |
| } |
| } |
| |
| Status ResourceManagerService::reclaimResource( |
| int32_t callingPid, |
| const std::vector<MediaResourceParcel>& resources, |
| bool* _aidl_return) { |
| String8 log = String8::format("reclaimResource(callingPid %d, resources %s)", |
| callingPid, getString(resources).string()); |
| mServiceLog->add(log); |
| *_aidl_return = false; |
| |
| Vector<std::shared_ptr<IResourceManagerClient>> clients; |
| { |
| Mutex::Autolock lock(mLock); |
| if (!mProcessInfo->isValidPid(callingPid)) { |
| pid_t actualCallingPid = IPCThreadState::self()->getCallingPid(); |
| ALOGW("%s called with untrusted pid %d, using actual calling pid %d", __FUNCTION__, |
| callingPid, actualCallingPid); |
| callingPid = actualCallingPid; |
| } |
| const MediaResourceParcel *secureCodec = NULL; |
| const MediaResourceParcel *nonSecureCodec = NULL; |
| const MediaResourceParcel *graphicMemory = NULL; |
| const MediaResourceParcel *drmSession = NULL; |
| for (size_t i = 0; i < resources.size(); ++i) { |
| MediaResource::Type type = resources[i].type; |
| if (resources[i].type == MediaResource::Type::kSecureCodec) { |
| secureCodec = &resources[i]; |
| } else if (type == MediaResource::Type::kNonSecureCodec) { |
| nonSecureCodec = &resources[i]; |
| } else if (type == MediaResource::Type::kGraphicMemory) { |
| graphicMemory = &resources[i]; |
| } else if (type == MediaResource::Type::kDrmSession) { |
| drmSession = &resources[i]; |
| } |
| } |
| |
| // first pass to handle secure/non-secure codec conflict |
| if (secureCodec != NULL) { |
| if (!mSupportsMultipleSecureCodecs) { |
| if (!getAllClients_l(callingPid, MediaResource::Type::kSecureCodec, &clients)) { |
| return Status::ok(); |
| } |
| } |
| if (!mSupportsSecureWithNonSecureCodec) { |
| if (!getAllClients_l(callingPid, MediaResource::Type::kNonSecureCodec, &clients)) { |
| return Status::ok(); |
| } |
| } |
| } |
| if (nonSecureCodec != NULL) { |
| if (!mSupportsSecureWithNonSecureCodec) { |
| if (!getAllClients_l(callingPid, MediaResource::Type::kSecureCodec, &clients)) { |
| return Status::ok(); |
| } |
| } |
| } |
| if (drmSession != NULL) { |
| getClientForResource_l(callingPid, drmSession, &clients); |
| if (clients.size() == 0) { |
| return Status::ok(); |
| } |
| } |
| |
| if (clients.size() == 0) { |
| // if no secure/non-secure codec conflict, run second pass to handle other resources. |
| getClientForResource_l(callingPid, graphicMemory, &clients); |
| } |
| |
| if (clients.size() == 0) { |
| // if we are here, run the third pass to free one codec with the same type. |
| getClientForResource_l(callingPid, secureCodec, &clients); |
| getClientForResource_l(callingPid, nonSecureCodec, &clients); |
| } |
| |
| if (clients.size() == 0) { |
| // if we are here, run the fourth pass to free one codec with the different type. |
| if (secureCodec != NULL) { |
| MediaResource temp(MediaResource::Type::kNonSecureCodec, 1); |
| getClientForResource_l(callingPid, &temp, &clients); |
| } |
| if (nonSecureCodec != NULL) { |
| MediaResource temp(MediaResource::Type::kSecureCodec, 1); |
| getClientForResource_l(callingPid, &temp, &clients); |
| } |
| } |
| } |
| |
| *_aidl_return = reclaimInternal(clients); |
| return Status::ok(); |
| } |
| |
| bool ResourceManagerService::reclaimInternal( |
| const Vector<std::shared_ptr<IResourceManagerClient>> &clients) { |
| if (clients.size() == 0) { |
| return false; |
| } |
| |
| std::shared_ptr<IResourceManagerClient> failedClient; |
| for (size_t i = 0; i < clients.size(); ++i) { |
| String8 log = String8::format("reclaimResource from client %p", clients[i].get()); |
| mServiceLog->add(log); |
| bool success; |
| Status status = clients[i]->reclaimResource(&success); |
| if (!status.isOk() || !success) { |
| failedClient = clients[i]; |
| break; |
| } |
| } |
| |
| if (failedClient == NULL) { |
| return true; |
| } |
| |
| { |
| Mutex::Autolock lock(mLock); |
| bool found = false; |
| for (size_t i = 0; i < mMap.size(); ++i) { |
| ResourceInfos &infos = mMap.editValueAt(i); |
| for (size_t j = 0; j < infos.size();) { |
| if (infos[j].client == failedClient) { |
| j = infos.removeItemsAt(j); |
| found = true; |
| } else { |
| ++j; |
| } |
| } |
| if (found) { |
| break; |
| } |
| } |
| if (!found) { |
| ALOGV("didn't find failed client"); |
| } |
| } |
| |
| return false; |
| } |
| |
| Status ResourceManagerService::overridePid( |
| int originalPid, |
| int newPid) { |
| String8 log = String8::format("overridePid(originalPid %d, newPid %d)", |
| originalPid, newPid); |
| mServiceLog->add(log); |
| |
| // allow if this is called from the same process or the process has |
| // permission. |
| if ((AIBinder_getCallingPid() != getpid()) && |
| (checkCallingPermission(String16( |
| "android.permission.MEDIA_RESOURCE_OVERRIDE_PID")) == false)) { |
| ALOGE( |
| "Permission Denial: can't access overridePid method from pid=%d, " |
| "self pid=%d\n", |
| AIBinder_getCallingPid(), getpid()); |
| return Status::fromServiceSpecificError(PERMISSION_DENIED); |
| } |
| |
| { |
| Mutex::Autolock lock(mLock); |
| mOverridePidMap.erase(originalPid); |
| if (newPid != -1) { |
| mOverridePidMap.emplace(originalPid, newPid); |
| } |
| } |
| |
| return Status::ok(); |
| } |
| |
| Status ResourceManagerService::overrideProcessInfo( |
| const std::shared_ptr<IResourceManagerClient>& client, |
| int pid, |
| int procState, |
| int oomScore) { |
| String8 log = String8::format("overrideProcessInfo(pid %d, procState %d, oomScore %d)", |
| pid, procState, oomScore); |
| mServiceLog->add(log); |
| |
| // Only allow the override if the caller already can access process state and oom scores. |
| int callingPid = AIBinder_getCallingPid(); |
| if (callingPid != getpid() && (callingPid != pid || !checkCallingPermission(String16( |
| "android.permission.GET_PROCESS_STATE_AND_OOM_SCORE")))) { |
| ALOGE("Permission Denial: overrideProcessInfo method from pid=%d", callingPid); |
| return Status::fromServiceSpecificError(PERMISSION_DENIED); |
| } |
| |
| if (client == nullptr) { |
| return Status::fromServiceSpecificError(BAD_VALUE); |
| } |
| |
| Mutex::Autolock lock(mLock); |
| removeProcessInfoOverride_l(pid); |
| |
| if (!mProcessInfo->overrideProcessInfo(pid, procState, oomScore)) { |
| // Override value is rejected by ProcessInfo. |
| return Status::fromServiceSpecificError(BAD_VALUE); |
| } |
| |
| uintptr_t cookie = addCookieAndLink_l(client->asBinder(), |
| new OverrideProcessInfoDeathNotifier(ref<ResourceManagerService>(), pid)); |
| |
| mProcessInfoOverrideMap.emplace(pid, ProcessInfoOverride{cookie, client}); |
| |
| return Status::ok(); |
| } |
| |
| uintptr_t ResourceManagerService::addCookieAndLink_l( |
| ::ndk::SpAIBinder binder, const sp<DeathNotifier>& notifier) { |
| std::scoped_lock lock{sCookieLock}; |
| |
| uintptr_t cookie; |
| // Need to skip cookie 0 (if it wraps around). ResourceInfo has cookie initialized to 0 |
| // indicating the death notifier is not created yet. |
| while ((cookie = ++sCookieCounter) == 0); |
| AIBinder_linkToDeath(binder.get(), mDeathRecipient.get(), (void*)cookie); |
| sCookieToDeathNotifierMap.emplace(cookie, notifier); |
| |
| return cookie; |
| } |
| |
| void ResourceManagerService::removeCookieAndUnlink_l( |
| ::ndk::SpAIBinder binder, uintptr_t cookie) { |
| std::scoped_lock lock{sCookieLock}; |
| AIBinder_unlinkToDeath(binder.get(), mDeathRecipient.get(), (void*)cookie); |
| sCookieToDeathNotifierMap.erase(cookie); |
| } |
| |
| void ResourceManagerService::removeProcessInfoOverride(int pid) { |
| Mutex::Autolock lock(mLock); |
| |
| removeProcessInfoOverride_l(pid); |
| } |
| |
| void ResourceManagerService::removeProcessInfoOverride_l(int pid) { |
| auto it = mProcessInfoOverrideMap.find(pid); |
| if (it == mProcessInfoOverrideMap.end()) { |
| return; |
| } |
| |
| mProcessInfo->removeProcessInfoOverride(pid); |
| |
| removeCookieAndUnlink_l(it->second.client->asBinder(), it->second.cookie); |
| |
| mProcessInfoOverrideMap.erase(pid); |
| } |
| |
| Status ResourceManagerService::markClientForPendingRemoval(int32_t pid, int64_t clientId) { |
| String8 log = String8::format( |
| "markClientForPendingRemoval(pid %d, clientId %lld)", |
| pid, (long long) clientId); |
| mServiceLog->add(log); |
| |
| Mutex::Autolock lock(mLock); |
| if (!mProcessInfo->isValidPid(pid)) { |
| pid_t callingPid = IPCThreadState::self()->getCallingPid(); |
| ALOGW("%s called with untrusted pid %d, using calling pid %d", __FUNCTION__, |
| pid, callingPid); |
| pid = callingPid; |
| } |
| ssize_t index = mMap.indexOfKey(pid); |
| if (index < 0) { |
| ALOGV("markClientForPendingRemoval: didn't find pid %d for clientId %lld", |
| pid, (long long)clientId); |
| return Status::ok(); |
| } |
| ResourceInfos &infos = mMap.editValueAt(index); |
| |
| index = infos.indexOfKey(clientId); |
| if (index < 0) { |
| ALOGV("markClientForPendingRemoval: didn't find clientId %lld", (long long) clientId); |
| return Status::ok(); |
| } |
| |
| ResourceInfo &info = infos.editValueAt(index); |
| info.pendingRemoval = true; |
| return Status::ok(); |
| } |
| |
| Status ResourceManagerService::reclaimResourcesFromClientsPendingRemoval(int32_t pid) { |
| String8 log = String8::format("reclaimResourcesFromClientsPendingRemoval(pid %d)", pid); |
| mServiceLog->add(log); |
| |
| Vector<std::shared_ptr<IResourceManagerClient>> clients; |
| { |
| Mutex::Autolock lock(mLock); |
| if (!mProcessInfo->isValidPid(pid)) { |
| pid_t callingPid = IPCThreadState::self()->getCallingPid(); |
| ALOGW("%s called with untrusted pid %d, using calling pid %d", __FUNCTION__, |
| pid, callingPid); |
| pid = callingPid; |
| } |
| |
| for (MediaResource::Type type : {MediaResource::Type::kSecureCodec, |
| MediaResource::Type::kNonSecureCodec, |
| MediaResource::Type::kGraphicMemory, |
| MediaResource::Type::kDrmSession}) { |
| std::shared_ptr<IResourceManagerClient> client; |
| if (getBiggestClient_l(pid, type, &client, true /* pendingRemovalOnly */)) { |
| clients.add(client); |
| break; |
| } |
| } |
| } |
| |
| if (!clients.empty()) { |
| reclaimInternal(clients); |
| } |
| return Status::ok(); |
| } |
| |
| bool ResourceManagerService::getPriority_l(int pid, int* priority) { |
| int newPid = pid; |
| |
| if (mOverridePidMap.find(pid) != mOverridePidMap.end()) { |
| newPid = mOverridePidMap[pid]; |
| ALOGD("getPriority_l: use override pid %d instead original pid %d", |
| newPid, pid); |
| } |
| |
| return mProcessInfo->getPriority(newPid, priority); |
| } |
| |
| bool ResourceManagerService::getAllClients_l( |
| int callingPid, MediaResource::Type type, |
| Vector<std::shared_ptr<IResourceManagerClient>> *clients) { |
| Vector<std::shared_ptr<IResourceManagerClient>> temp; |
| for (size_t i = 0; i < mMap.size(); ++i) { |
| ResourceInfos &infos = mMap.editValueAt(i); |
| for (size_t j = 0; j < infos.size(); ++j) { |
| if (hasResourceType(type, infos[j].resources)) { |
| if (!isCallingPriorityHigher_l(callingPid, mMap.keyAt(i))) { |
| // some higher/equal priority process owns the resource, |
| // this request can't be fulfilled. |
| ALOGE("getAllClients_l: can't reclaim resource %s from pid %d", |
| asString(type), mMap.keyAt(i)); |
| return false; |
| } |
| temp.push_back(infos[j].client); |
| } |
| } |
| } |
| if (temp.size() == 0) { |
| ALOGV("getAllClients_l: didn't find any resource %s", asString(type)); |
| return true; |
| } |
| clients->appendVector(temp); |
| return true; |
| } |
| |
| bool ResourceManagerService::getLowestPriorityBiggestClient_l( |
| int callingPid, MediaResource::Type type, |
| std::shared_ptr<IResourceManagerClient> *client) { |
| int lowestPriorityPid; |
| int lowestPriority; |
| int callingPriority; |
| |
| // Before looking into other processes, check if we have clients marked for |
| // pending removal in the same process. |
| if (getBiggestClient_l(callingPid, type, client, true /* pendingRemovalOnly */)) { |
| return true; |
| } |
| if (!getPriority_l(callingPid, &callingPriority)) { |
| ALOGE("getLowestPriorityBiggestClient_l: can't get process priority for pid %d", |
| callingPid); |
| return false; |
| } |
| if (!getLowestPriorityPid_l(type, &lowestPriorityPid, &lowestPriority)) { |
| return false; |
| } |
| if (lowestPriority <= callingPriority) { |
| ALOGE("getLowestPriorityBiggestClient_l: lowest priority %d vs caller priority %d", |
| lowestPriority, callingPriority); |
| return false; |
| } |
| |
| if (!getBiggestClient_l(lowestPriorityPid, type, client)) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool ResourceManagerService::getLowestPriorityPid_l( |
| MediaResource::Type type, int *lowestPriorityPid, int *lowestPriority) { |
| int pid = -1; |
| int priority = -1; |
| for (size_t i = 0; i < mMap.size(); ++i) { |
| if (mMap.valueAt(i).size() == 0) { |
| // no client on this process. |
| continue; |
| } |
| if (!hasResourceType(type, mMap.valueAt(i))) { |
| // doesn't have the requested resource type |
| continue; |
| } |
| int tempPid = mMap.keyAt(i); |
| int tempPriority; |
| if (!getPriority_l(tempPid, &tempPriority)) { |
| ALOGV("getLowestPriorityPid_l: can't get priority of pid %d, skipped", tempPid); |
| // TODO: remove this pid from mMap? |
| continue; |
| } |
| if (pid == -1 || tempPriority > priority) { |
| // initial the value |
| pid = tempPid; |
| priority = tempPriority; |
| } |
| } |
| if (pid != -1) { |
| *lowestPriorityPid = pid; |
| *lowestPriority = priority; |
| } |
| return (pid != -1); |
| } |
| |
| bool ResourceManagerService::isCallingPriorityHigher_l(int callingPid, int pid) { |
| int callingPidPriority; |
| if (!getPriority_l(callingPid, &callingPidPriority)) { |
| return false; |
| } |
| |
| int priority; |
| if (!getPriority_l(pid, &priority)) { |
| return false; |
| } |
| |
| return (callingPidPriority < priority); |
| } |
| |
| bool ResourceManagerService::getBiggestClient_l( |
| int pid, MediaResource::Type type, std::shared_ptr<IResourceManagerClient> *client, |
| bool pendingRemovalOnly) { |
| ssize_t index = mMap.indexOfKey(pid); |
| if (index < 0) { |
| ALOGE_IF(!pendingRemovalOnly, |
| "getBiggestClient_l: can't find resource info for pid %d", pid); |
| return false; |
| } |
| |
| std::shared_ptr<IResourceManagerClient> clientTemp; |
| uint64_t largestValue = 0; |
| const ResourceInfos &infos = mMap.valueAt(index); |
| for (size_t i = 0; i < infos.size(); ++i) { |
| const ResourceList &resources = infos[i].resources; |
| if (pendingRemovalOnly && !infos[i].pendingRemoval) { |
| continue; |
| } |
| for (auto it = resources.begin(); it != resources.end(); it++) { |
| const MediaResourceParcel &resource = it->second; |
| if (resource.type == type) { |
| if (resource.value > largestValue) { |
| largestValue = resource.value; |
| clientTemp = infos[i].client; |
| } |
| } |
| } |
| } |
| |
| if (clientTemp == NULL) { |
| ALOGE_IF(!pendingRemovalOnly, |
| "getBiggestClient_l: can't find resource type %s for pid %d", |
| asString(type), pid); |
| return false; |
| } |
| |
| *client = clientTemp; |
| return true; |
| } |
| |
| } // namespace android |
