android binder

Android developers may have some experience, early in the beginning, the work is mainly to achieve a variety of UI interface, as well as the implementation of the business logic of the application. At this stage, we will gradually become familiar with the view system, gradually learn to achieve a variety of interface and animation effects. Later, when we want to learn more about Android, such as the start-u

resource, other processes also access the resource. Therefore, it is primarily used as a means of synchronization between processes and between different threads within the same process.6. signal : Not for information exchange, more suitable for process interrupt control, such as illegal memory access, kill a process, etc.;The kernel of Android is also based on the Linux kernel, why not directly adopt the Linux existing process IPC program, is not th

Recently saw a blog, is to talk about the binder principle, before looking at the deep understanding of Android I have seen, at that time do not understand. Feel this also a bit of meaning, looked for a few days, found the more see the more do not understand, and then look at Lao Luo's blog, found also not too understand, now want to according to the book of Things Good comb under binder.The sense inside sh

Analysis of Android aidl Binder framework, aidlbinderReprinted please indicate the source: http://blog.csdn.net/lmj623565791/article/details/38461079, this article from [Zhang Hongyang's blog]1. Overview What can Binder do? Binder provides global services that can be accessed by any program in the system. Of course, th

What is a binder? Binder is a type of IPC. Do not know IPC? Google, the omnipotent Google.In Linux, we know that resources are allocated and managed by processes. Processes run in independent spaces, which are closed and independent from each other. Then the problem arises. In a complicated operating system, what should we do if tasks need to be completed collaboratively between processes? This must inv

void sendpacket ()throwsremoteexception{Ibinde rmremote=null;String arg="Agr0";Parcel Data=parcel.obtain ();Parcel Reply=parcel.obtain ();Data.writeinterfacetoken ("Musicplayservice"); // Callout remote service name Data.writestring (ARG);Int flags=0;/*** When the client thread enters the binder driver,thebinder driver suspends the current thread and sends a message to the remote service.* The message contains the package that the client sent in.

This article is based on the source code Scenario Analysis of the Android system, by Luo shengyang I. Test code: ~ /Android/external/binder/server ---- FregServer. cpp ~ /Android/external/binder/common ---- IFregService. cpp ---- IFregService. h ~ /

This article is based on the source code Scenario Analysis of the Android system, by Luo shengyang. I. Test code: ~ /Android/external/binder/server ---- FregServer. cpp ~ /Android/external/binder/common ---- IFregService. cpp ---- IFregService. h ~ /

We know that in Android, every application runs in a separate process, which also guarantees that when one of the programs has an exception, it does not affect the normal functioning of another application. In many cases, we work with the service of various systems, and it is clear that the program we write is definitely not the same process as the system service, but how do they communicate? Binder is one

RPC (IPC) in Android is implemented by the binder component. Although we use more aidl, we will not directly use binder, however, it can help you better understand aidl and the principles and mechanisms of Android.Binder Architecture Similar to the architecture of other android components, the

Essentials of Android Binder driver's Working Mechanism Recently, I have read many books, articles, and Android source code for Android Kernel Analysis. I feel that I have a thorough understanding of the working mechanism of Android Bind