Programming Flash Communication Server

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Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.

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Chapter 3: Managing Connections

Each one of these URIs is an address of a separate instance of the chatRooms

application even though two of them contain the name “room8”. The instance

name

/chatRooms/motionPicture/film001/room8 is not the same as chatRooms/

science/phys325/room8

.

Relative URIs

If a .swf file is loaded into a browser from the same server that FlashCom is running

on, you can use a relative URI in which the

// characters and hostname are omitted.

Here is the format for a relative URI:

rtmp[t]:[:port]/applicationName[/instanceName]

In the earlier rtmp:/testLobby example, the protocol is rtmp, the single slash indicates

a relative URI, and testLobby is the application name. No application instance name

is provided, so the

_definst_ instance is assumed.

Waiting to Connect

After a successful connect( ) method invocation (one in which the URI is properly

formed), the NetConnection object must wait to see if the connection attempt itself is

successful. This can take some time as a number of things can happen:

• The server may be down or unreachable, in which case the connection attempt

will eventually fail.

• The network may be slow or the server may be busy.

• The application instance may accept the TCP network connection but place it in

a pending state while it decides if it should ...