fips parcel

This article illustrates the parcel mechanism of Android development. Share to everyone for your reference. The specific analysis is as follows: In Java, there is a serialization mechanism. But on the Android device, the new serialization mechanism was designed because of limited memory. Container for a message (data and object references) that can is sent through an ibinder. A Parcel can contain both fla

Parcel is a lightweight object serialization (similar to serierlizable). It can be used for inter-process communication. When used, a static creator must be written, and the data written and read sequence must be consistent. Here is an example of stackoverflow. We have studied how to transmit the list Public class myparcelinfo implements parcelable {private int feildcount; private arraylist Code : Protected void sendparcel (){ Myparc

Serialize is a Java original born of things, we can see the source of AndroidSo look at how Android is implementing parcel, which is what inspires our own code design.Parcel:In Android, the parcel source code is as follows:Frameworks/base/core/java/android/os/parcel.java /*** Write An integer value to the parcel at the current dataposition (), * growing dataca

Android inter-process communication data (2) ------ Implementation of parcel, androidparcel Serialize is something that comes with java Native. We can see the android source code. So let's take a look at how android implements parcel, which inspires our own code design. Parcel: In android, the source code of parcel is

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a pointer in C, Java is not without pointers, but in addition to the primitive type, all pointers, when it is a pointer, the developer does not feel the pointer and non-pointer differences, sometimes there is a wrong feeling, because Java no pointer. Because different processes have their own memory space, another process cannot manipulate the memory space of other processes, that is, objects that cannot manipulate other process memory spaces. The client and the remote service establish a conne

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The previous response explains ibinder. This is a detailed explanation of parcel. The following is an explanation of the android SDK documentation:Parcel is a container mainly used to store serialized data, which can then be passed between processes through the binder (to understand why serialization is required, see: http://blog.csdn.net/nkmnkm/archive/2011/05/28/6451699.aspx ). Parcel can contain the orig

The cornerstone of interprocess communication (IPC) in Android is the binder system, where the core binder drive of the binder system is C, which is undoubtedly obscure for application developers, and the entire Android framework is based on object-oriented thinking, The details of the operation of the underlying binder drive are all hidden, and the framework layer provides a very powerful binder object, so we want to implement interprocess communication (IPC) by simply playing with the binder o

Serializable is a Java-encapsulated delivery method, and parcel is created by Android.The two compare serializable simple, but the consumption is big, parcel is relatively troublesome, but consumes the smallSerializable how to use:1.imaplement Serializable Public class Data Implements Serializable2. Passing valuesIntent.putextra ("user"new Data ("name"2 ));3. Get DataIntent Intent = getintent ();D ata Data

. Number =Number ;} Public StaticFinal parcelable.creatorNewParcelable.creator() { PublicPatient createfromparcel (Parcel p) {Patient Patient=NewPatient (); Patient.name=p.readstring (); Patient.number=P.readint (); returnpatient; } PublicPatient[] NewArray (intsize) { return NewPatient[size]; } }; @Override Public intdescribecontents () {return 0; } /** * * @desc Note: The Write method here and Createfromparcel in the corresponding one by one,

Parcel, which means "packaging. What about packaging? It is for serialization. If you want to pass an integer between processes, it is easy to directly pass the line; if you want to pass a string, it is a little complicated: You need to first allocate a memory that can hold the string, then copy the string to the memory and pass it again. (A newbie may ask: why not directly pass the string reference? Everyone who has learned C/C ++ knows that a proce

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Ping An Da tengfei express found that Shell involves a large number of parcel information including the main site data. Information Leakage of tens of millions of parcels and many Database backups **. **: 8080/oa/login. jsp The shell address is:**. **: 8080/jbossass. jspUse this command to write a sentence to the ponyPony: **. **: 8080/rfd. jspOne sentence: **. **: 8080/wooyun. jsp Various Database backups Over-many sites Guanwei Ping An Da on

one, the Code1.xml(1) Activity_main.xml12xmlns:tools= "http://schemas.android.com/tools"3Android:layout_width= "match_parent"4android:layout_height= "match_parent"5Android:paddingbottom= "@dimen/activity_vertical_margin"6android:paddingleft= "@dimen/

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closeResponse sprintf (printBuf, "% s}", printBuf)# Define printResponse LOGD ("% s", printBuf)# Define clearPrintBuf printBuf [0] = 0# Define removeLastChar printBuf [strlen (printBuf)-1] = 0# Define appendPrintBuf (x...) sprintf (printBuf, x)# Else# Define startRequest# Define closeRequest# Define printRequest (token, req)# Define startResponse# Define closeResponse# Define printResponse# Define clearPrintBuf# Define removeLastChar# Define appendPrintBuf (x ...)# Endif// Wakeup type: do not w

becomes very important. Just so-called, walnuts, posterity, refer to a thorough understanding of the Android Binder Communication architecture This article, the pointcut is StartService start, the specific analysis is the process of client process call server process. [=> Activitymanagernative::activitymanagerproxy]public ComponentName startService(IApplicationThread caller, Intent service, String resolvedType, int userId) throws RemoteException { //这一步操作主要实例了两个