isdndemo is a single-threaded C++ application consisting of global functions and classes. The following table lists the global functions found in the isdndemo.cpp file:
Function |
Description |
---|---|
cta_error_handler |
Processes Natural Access errors. |
dfprintf, dvprintf |
Provides conditional program output. |
error |
Provides critical application error notification. |
error_cta |
Provides output of Natural Access codes in text form. |
getACU, getACUERR |
Converts some constants to text form. |
main |
Provides a program entry point, performs processing of program-wide command line arguments, and initializes Natural Access and program classes. |
readConfig |
Creates a program object hierarchy based on command line arguments. |
The global classes used with isdndemo are found in several files. The following table lists each class along with its associated file and description:
Class |
File |
Description |
---|---|---|
BChannel |
BChannel.cpp |
Specifies a context class that represents the ISDN B channel. |
Board |
Board.cpp |
Provides access to information about NMS boards. |
Call |
Call.cpp |
Specifies an object that represents a single NMS ISDN call. |
Context |
Context.cpp |
Implements a single-threaded program model and a generic mechanism for processing Natural Access events. |
DChannel |
DChannel.cpp |
Specifies a context class that represents the ISDN D channel. |
NAI |
NAI.cpp |
Specifies an object that represents board trunks (or NAI in NFAS terminology) associated with BChannel and Call objects. |
Timer |
Timer.cpp |
Implements a synchronous timer based on the asynchronous ADI timer. |
The following illustration shows how isdndemo functions and classes are related: