65fc38a029
Use the new libincfs APIs to preallocate space for all files created via the public makeFile() API. This way we ensure the device won't run out of space much later Bug: 182185202 Test: atest libincfs-test PackageManagerShellCommandTest \ PackageManagerShellCommandIncrementalTest \ IncrementalServiceTest Change-Id: I70af97949b29ff5db63201b0e3487fe026e23160
209 lines
8.6 KiB
C++
209 lines
8.6 KiB
C++
/*
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* Copyright (C) 2019 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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#pragma once
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#include <android-base/function_ref.h>
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#include <android-base/unique_fd.h>
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#include <android/content/pm/DataLoaderParamsParcel.h>
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#include <android/content/pm/FileSystemControlParcel.h>
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#include <android/content/pm/IDataLoader.h>
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#include <android/content/pm/IDataLoaderStatusListener.h>
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#include <android/os/incremental/PerUidReadTimeouts.h>
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#include <binder/IAppOpsCallback.h>
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#include <binder/IServiceManager.h>
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#include <binder/Status.h>
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#include <incfs.h>
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#include <jni.h>
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#include <utils/Looper.h>
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#include <memory>
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#include <span>
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#include <string>
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#include <string_view>
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namespace android::incremental {
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using Clock = std::chrono::steady_clock;
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using TimePoint = std::chrono::time_point<Clock>;
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using Milliseconds = std::chrono::milliseconds;
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using Job = std::function<void()>;
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// --- Wrapper interfaces ---
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using MountId = int32_t;
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class VoldServiceWrapper {
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public:
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virtual ~VoldServiceWrapper() = default;
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virtual binder::Status mountIncFs(
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const std::string& backingPath, const std::string& targetDir, int32_t flags,
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os::incremental::IncrementalFileSystemControlParcel* result) const = 0;
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virtual binder::Status unmountIncFs(const std::string& dir) const = 0;
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virtual binder::Status bindMount(const std::string& sourceDir,
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const std::string& targetDir) const = 0;
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virtual binder::Status setIncFsMountOptions(
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const os::incremental::IncrementalFileSystemControlParcel& control,
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bool enableReadLogs) const = 0;
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};
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class DataLoaderManagerWrapper {
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public:
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virtual ~DataLoaderManagerWrapper() = default;
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virtual binder::Status bindToDataLoader(
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MountId mountId, const content::pm::DataLoaderParamsParcel& params, int bindDelayMs,
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const sp<content::pm::IDataLoaderStatusListener>& listener, bool* result) const = 0;
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virtual binder::Status getDataLoader(MountId mountId,
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sp<content::pm::IDataLoader>* result) const = 0;
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virtual binder::Status unbindFromDataLoader(MountId mountId) const = 0;
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};
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class IncFsWrapper {
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public:
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using Control = incfs::Control;
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using FileId = incfs::FileId;
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using ErrorCode = incfs::ErrorCode;
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using UniqueFd = incfs::UniqueFd;
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using WaitResult = incfs::WaitResult;
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using Features = incfs::Features;
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using ExistingMountCallback = android::base::function_ref<
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void(std::string_view root, std::string_view backingDir,
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std::span<std::pair<std::string_view, std::string_view>> binds)>;
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virtual ~IncFsWrapper() = default;
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virtual Features features() const = 0;
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virtual void listExistingMounts(const ExistingMountCallback& cb) const = 0;
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virtual Control openMount(std::string_view path) const = 0;
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virtual Control createControl(IncFsFd cmd, IncFsFd pendingReads, IncFsFd logs,
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IncFsFd blocksWritten) const = 0;
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virtual ErrorCode makeFile(const Control& control, std::string_view path, int mode, FileId id,
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incfs::NewFileParams params) const = 0;
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virtual ErrorCode makeMappedFile(const Control& control, std::string_view path, int mode,
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incfs::NewMappedFileParams params) const = 0;
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virtual ErrorCode makeDir(const Control& control, std::string_view path, int mode) const = 0;
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virtual ErrorCode makeDirs(const Control& control, std::string_view path, int mode) const = 0;
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virtual incfs::RawMetadata getMetadata(const Control& control, FileId fileid) const = 0;
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virtual incfs::RawMetadata getMetadata(const Control& control, std::string_view path) const = 0;
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virtual FileId getFileId(const Control& control, std::string_view path) const = 0;
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virtual std::string toString(FileId fileId) const = 0;
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virtual std::pair<IncFsBlockIndex, IncFsBlockIndex> countFilledBlocks(
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const Control& control, std::string_view path) const = 0;
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virtual ErrorCode link(const Control& control, std::string_view from,
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std::string_view to) const = 0;
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virtual ErrorCode unlink(const Control& control, std::string_view path) const = 0;
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virtual UniqueFd openForSpecialOps(const Control& control, FileId id) const = 0;
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virtual ErrorCode writeBlocks(std::span<const incfs::DataBlock> blocks) const = 0;
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virtual ErrorCode reserveSpace(const Control& control, std::string_view path,
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IncFsSize size) const = 0;
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virtual WaitResult waitForPendingReads(
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const Control& control, std::chrono::milliseconds timeout,
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std::vector<incfs::ReadInfo>* pendingReadsBuffer) const = 0;
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virtual ErrorCode setUidReadTimeouts(
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const Control& control,
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const std::vector<::android::os::incremental::PerUidReadTimeouts>& perUidReadTimeouts)
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const = 0;
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};
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class AppOpsManagerWrapper {
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public:
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virtual ~AppOpsManagerWrapper() = default;
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virtual binder::Status checkPermission(const char* permission, const char* operation,
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const char* package) const = 0;
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virtual void startWatchingMode(int32_t op, const String16& packageName,
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const sp<IAppOpsCallback>& callback) = 0;
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virtual void stopWatchingMode(const sp<IAppOpsCallback>& callback) = 0;
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};
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class JniWrapper {
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public:
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virtual ~JniWrapper() = default;
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virtual void initializeForCurrentThread() const = 0;
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};
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class LooperWrapper {
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public:
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virtual ~LooperWrapper() = default;
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virtual int addFd(int fd, int ident, int events, android::Looper_callbackFunc callback,
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void* data) = 0;
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virtual int removeFd(int fd) = 0;
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virtual void wake() = 0;
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virtual int pollAll(int timeoutMillis) = 0;
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};
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class TimedQueueWrapper {
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public:
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virtual ~TimedQueueWrapper() = default;
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virtual void addJob(MountId id, Milliseconds after, Job what) = 0;
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virtual void removeJobs(MountId id) = 0;
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virtual void stop() = 0;
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};
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class FsWrapper {
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public:
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virtual ~FsWrapper() = default;
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using FileCallback = android::base::function_ref<bool(std::string_view)>;
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virtual void listFilesRecursive(std::string_view directoryPath, FileCallback onFile) const = 0;
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};
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class ClockWrapper {
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public:
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virtual ~ClockWrapper() = default;
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virtual TimePoint now() const = 0;
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};
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class ServiceManagerWrapper {
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public:
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virtual ~ServiceManagerWrapper() = default;
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virtual std::unique_ptr<VoldServiceWrapper> getVoldService() = 0;
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virtual std::unique_ptr<DataLoaderManagerWrapper> getDataLoaderManager() = 0;
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virtual std::unique_ptr<IncFsWrapper> getIncFs() = 0;
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virtual std::unique_ptr<AppOpsManagerWrapper> getAppOpsManager() = 0;
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virtual std::unique_ptr<JniWrapper> getJni() = 0;
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virtual std::unique_ptr<LooperWrapper> getLooper() = 0;
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virtual std::unique_ptr<TimedQueueWrapper> getTimedQueue() = 0;
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virtual std::unique_ptr<TimedQueueWrapper> getProgressUpdateJobQueue() = 0;
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virtual std::unique_ptr<FsWrapper> getFs() = 0;
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virtual std::unique_ptr<ClockWrapper> getClock() = 0;
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};
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// --- Real stuff ---
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class RealServiceManager : public ServiceManagerWrapper {
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public:
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RealServiceManager(sp<IServiceManager> serviceManager, JNIEnv* env);
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~RealServiceManager() = default;
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std::unique_ptr<VoldServiceWrapper> getVoldService() final;
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std::unique_ptr<DataLoaderManagerWrapper> getDataLoaderManager() final;
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std::unique_ptr<IncFsWrapper> getIncFs() final;
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std::unique_ptr<AppOpsManagerWrapper> getAppOpsManager() final;
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std::unique_ptr<JniWrapper> getJni() final;
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std::unique_ptr<LooperWrapper> getLooper() final;
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std::unique_ptr<TimedQueueWrapper> getTimedQueue() final;
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std::unique_ptr<TimedQueueWrapper> getProgressUpdateJobQueue() final;
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std::unique_ptr<FsWrapper> getFs() final;
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std::unique_ptr<ClockWrapper> getClock() final;
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private:
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template <class INTERFACE>
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sp<INTERFACE> getRealService(std::string_view serviceName) const;
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sp<android::IServiceManager> mServiceManager;
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JavaVM* const mJvm;
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};
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} // namespace android::incremental
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