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android之StorageManager介绍

image.png StorageManager 在Android系统中，常用的存储介质是Nand Flash；系统的二进制镜像、 Android的文件系统等通常都保存在Nand Flash 中。...从Android 2.3开始新增了一个OBB文件系统和StorageManager类用来管理外部存储上的数据安全。...android.os.storage.StorageManager类的实例化方法需要使用 getSystemService(Contxt.STORAGE_SERVICE)才可以。...系统提供了 StorageManager 类，它有一个方法叫getVolumeList()，这个方法的返回值是一个StorageVolume数组，StorageVolume类中封装了挂载路径，挂载状态，...storageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE); try {

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聊聊artemis message的duplicateProperty

storageManager; private final boolean persist; public DuplicateIDCacheImpl(final SimpleString...storageManager, final boolean persist) { this.address = address...; cacheSize = size; ids = new ArrayList(size); this.storageManager = storageManager...= -1) { storageManager.commit(txID); } pos = ids.size(); if (pos == cacheSize...(); storageManager.storeDuplicateIDTransactional(tx.getID(), address, duplID, recordID);

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聊聊artemis message的duplicateProperty

storageManager; private final boolean persist; public DuplicateIDCacheImpl(final SimpleString...storageManager, final boolean persist) { this.address = address...; cacheSize = size; ids = new ArrayList(size); this.storageManager = storageManager...(duplID, recordID); } else { if (persist) { recordID = storageManager.generateID...(); storageManager.storeDuplicateIDTransactional(tx.getID(), address, duplID, recordID);

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聊聊artemis的persistenceEnabled

protected StorageManager createStorageManager() { if (configuration.isPersistenceEnabled()) {...是JDBCJournalStorageManager或者JournalStorageManager；否则创建的StorageManager是NullStorageManager processRoute...); } else { storageManager.updateScheduledDeliveryTime(reference...是JDBCJournalStorageManager或者JournalStorageManager；否则创建的StorageManager是NullStorageManager；PostOfficeImpl...的processRoute方法会判断message.isDurable()，若为true且durableRefCount为1则会执行storageManager.storeMessage或者storageManager.storeMessageTransactional

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聊聊artemis的persistenceEnabled

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聊聊artemis的DelayedAddRedistributor

this.toString()); } redistributor = (new ConsumerHolder(new Redistributor(this, storageManager...storageManager; private final PostOffice postOffice; private final Executor executor; ...storageManager, final PostOffice postOffice, final Executor...(); this.storageManager = storageManager; this.postOffice = postOffice; this.executor...delivered return HandleStatus.NO_MATCH; } final Transaction tx = new TransactionImpl(storageManager

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聊聊artemis的DelayedAddRedistributor

this.toString()); } redistributor = (new ConsumerHolder(new Redistributor(this, storageManager...storageManager; private final PostOffice postOffice; private final Executor executor; private...storageManager, final PostOffice postOffice, final Executor...(); this.storageManager = storageManager; this.postOffice = postOffice; this.executor...delivered return HandleStatus.NO_MATCH; } final Transaction tx = new TransactionImpl(storageManager

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聊聊artemis的scheduledDeliveryTime

= null && storageManager.addToPage(store, message, context.getTransaction(), entry.getValue())) {...} else { storageManager.storeMessage(message); }...); } else { storageManager.updateScheduledDeliveryTime(reference...；对于tx不为null的会创建AddOperation添加到tx中，对于tx为null的则通过storageManager.afterCompleteOperations注册IOCallback，其done...；对于tx不为null的会创建AddOperation添加到tx中，对于tx为null的则通过storageManager.afterCompleteOperations注册IOCallback，其done

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Storage API简介和存储限制与逐出策略

Storage API指的就是StorageManager，它有三个非常重要的方法estimate，persist和persisted，我们看下他们的浏览器兼容性： ?...基本上，现代浏览器都支持StorageManager和它的三个方法。下面我们分别来看一下他们的使用。 StorageManager是一个接口，用来管理存储的权限和评估可用的空间。...我们可以通过navigator.storage 或者WorkerNavigator.storage 来获取到StorageManager。...我们看一下StorageManger的定义： interface StorageManager { estimate(): Promise; persist

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一篇文章彻底明白Android文件存储

data/data//cache/ storage/emulated/0/Android/data//cache/ 当设备存储空间不足时，缓存文件可以被回收，系统回收策略为：阈值 StorageManager...sm = (StorageManager) getSystemService(Context.STORAGE_SERVICE); UUID uuid = sm.getUuidForPath(getCacheDir...target = File(context.filesDir,"my-download") val sm = getSystemService(Context.STORAGE_SERVICE) as StorageManager...); intent.putExtra(StorageManager.EXTRA_UUID,uuid); // 需要的空间 intent.putExtra(StorageManager.EXTRA_REQUESTED_BYTES...,downloadSize); context.tartActivityForResult(intent,REQUEST_CODE); } > StorageManager#allocateBytes

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聊聊artemis的maxDeliveryAttempts

reference.isPaged()) { storageManager.updateDeliveryCount(reference); } AddressSettings...reference.isPaged() && reference.isDurable() && isDurable()) { storageManager.updateScheduledDeliveryTime...else { // if no TX we create a new one to commit at the end tx = new TransactionImpl(storageManager...ref.isPaged()) { storageManager.updateDeliveryCount(ref); }...ServerConsumerImpl的handle方法会在非browseOnly的情况下会调用ref.incrementDeliveryCount()来增加deliveryCount；必要的时候会执行storageManager.updateDeliveryCount

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聊聊artemis的maxDeliveryAttempts

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聊聊artemis的scheduledDeliveryTime

= null && storageManager.addToPage(store, message, context.getTransaction(), entry.getValue())) {...} else { storageManager.storeMessage(message); } ...); } else { storageManager.updateScheduledDeliveryTime(reference...；对于tx不为null的会创建AddOperation添加到tx中，对于tx为null的则通过storageManager.afterCompleteOperations注册IOCallback，其done...；对于tx不为null的会创建AddOperation添加到tx中，对于tx为null的则通过storageManager.afterCompleteOperations注册IOCallback，其done

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现代Web存储技术（四）：大型应用存储架构设计实战

){this.storage=storageManager;this.apiBase='/api';}//获取文章列表asyncgetArticles(category='all',page=1,limit...){this.storage=storageManager;this.imageCache=null;this.maxCacheSize=100*1024*1024;//100MBthis.init()...){this.storage=storageManager;this.videoDir='/videos';this.maxVideoSize=500*1024*1024;//500MB}//下载并保存视频...){this.storage=storageManager;this.defaultSettings={theme:'light',fontSize:'medium',autoDownload:false...=newImageCacheManager(this.storageManager);this.videoManager=newVideoFileManager(this.storageManager)

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PackageManagerService启动流程源码解析

()) { storageFlags = StorageManager.FLAG_STORAGE_DE; } else {...storageFlags = StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE; }...reconcileAppsDataLI(StorageManager.UUID_PRIVATE_INTERNAL, UserHandle.USER_SYSTEM,...storage = mContext.getSystemService(StorageManager.class); storage.registerListener(mStorageListener...); reconcileApps(StorageManager.UUID_PRIVATE_INTERNAL); } 至此，PackageManagerService启动流程分析完毕

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ONOS集群选举分析

StorageManager 实现了 StorageService 接口。 ...StorageManager.leaderElectorBuilder() .withName("onos-leadership-elections")... .build() .asLeaderElector(); StorageManager.leaderElectorBuilder() 调用了 new...DefaultLeaderElectorBuilder(federatedPrimitiveCreator) public class StorageManager implements StorageService...由上面 StorageManager 分析知道, partitions 的实参是 partitionMap。

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聊聊artemis的SessionConsumerFlowCreditMessage

break; } } private void onSessionConsumerFlowCredit(Packet packet) { this.storageManager.setContext...; } sendResponse(packet, response, false, false); } finally { this.storageManager.clearContext

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聊聊artemis的SessionConsumerFlowCreditMessage

break; } } private void onSessionConsumerFlowCredit(Packet packet) { this.storageManager.setContext...; } sendResponse(packet, response, false, false); } finally { this.storageManager.clearContext

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聊聊artemis的individualAcknowledge

false; if (tx == null) { startedTransaction = true; tx = new TransactionImpl(storageManager...starting new TX"); } startedTransaction = true; tx = new TransactionImpl(storageManager

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获取手机中安装应用的apk

com.android.connectivity.metrics package:com.google.android.inputmethod.latin package:com.google.android.storagemanager

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点击加载更多

android之StorageManager介绍

聊聊artemis message的duplicateProperty

聊聊artemis message的duplicateProperty

聊聊artemis的persistenceEnabled

聊聊artemis的persistenceEnabled

聊聊artemis的DelayedAddRedistributor

聊聊artemis的DelayedAddRedistributor

聊聊artemis的scheduledDeliveryTime

Storage API简介和存储限制与逐出策略

一篇文章彻底明白Android文件存储

聊聊artemis的maxDeliveryAttempts

聊聊artemis的maxDeliveryAttempts

聊聊artemis的scheduledDeliveryTime

现代Web存储技术（四）：大型应用存储架构设计实战

PackageManagerService启动流程源码解析

ONOS集群选举分析

聊聊artemis的SessionConsumerFlowCreditMessage

聊聊artemis的SessionConsumerFlowCreditMessage

聊聊artemis的individualAcknowledge

获取手机中安装应用的apk

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