rotpoint.blogg.se

1. #Multi chat client programming in c++ pdf free download registration#
2. #Multi chat client programming in c++ pdf free download android#

In the emulator, a phone uses IP address of the computer to communicate with other emulators or the membership server.

#Multi chat client programming in c++ pdf free download android#

It means that no matter which sub-network (WiFi) the Android peer nodes reside on and which socket port they are listening at, two Android phones can exchange messages. Membership management component is designed for user mobility.

This step not only keeps the Chat client active in server’s peer list, but also reflects the updated peers (newly joining or leaving peers) which register afterwards locally. An active client is the one which has recently registered with the server for less than 30 seconds.Step 4: Chat lists all the active peers in Peer List GUI.Step 5: Chat periodically registers with the membership server every 15 seconds (Repeat Step 2 and 3) and updates the Peer List GUI whenever needed. Step 3: In return, the membership server sends back the Peer List, which contains all the peer info for active Chat clients. (By now, Chat should have established the server listening socket at the specified TCP port.) Upon receiving the ‘register’ request message, the membership server starts a Peer List if this is the first peer registration, or updates the existing peer list with subsequent peer registrations.

#Multi chat client programming in c++ pdf free download registration#

Chat application consists of 2 components.Component 1: Membership Management (Peer Registration and Membership Update)Step 1: Chat obtains the username via Registration GUI Step 2: Chat registers the phone with the membership server, which listens at the public IP address and TCP port, by sending a ‘register’ request message with the peer information from the peer to the membership server. Peer info for a Chat client is a tuple containing the username, IP address of the mobile phone and Chat’s TCP listening port. Yet, users view the other clients by their usernames for convenience. A Chat client is uniquely defined by the IP address of the mobile phone and TCP listening port, through which the other Chat clients or membership server can communicate with it using sockets. Assignment Description Implement an Android App Chat, which enables mobile phones to exchange messages over Internet from phone GUI (For now, we will program and demo on Android Emulators). Since message exchange is the building block for P2P file sharing application in MP2 and other P2P applications in MP3, think in advance what components you can reuse and the corresponding API specification. It should be the most difficult MP since there is a big learning curve for most of you. The purpose of this MP is to learn the GUI design, to use intent and broadcast to communicate between GUI interfaces, and to practice threading and socket programming. Machine Problem 1: Let’s chatPost Date Due Date In MP1, we will build a P2P Chat App for Android, where several android phones can exchange messages with each other pair-wise using Internet over WiFi.