Define the os/2 threads code, Operating System

Assignment Help:

Define the OS/2 threads code

The sample program in Listing is very similar to the NetWare example. OS/2 commands are substituted for the pseudocode commands controlling thread creation and execution.

Listing

Void WorkerThread(ULONG userID);

#define SLEEP_INTERVAL (ULONG) 50

void AcceptRegisterationRequests( )

{

   int userID, threadID ;

   do{

        ......

        WaitforClientRegistration( )

        RegisterClient()

        UserID = RegisterAsUser ( )

        DocCreateThread(&threadID,WorkerThread, userID, 0, 8192)

        ......

     } while (FOREVER)

   }

   Void WorkerThread(ULONG userID);

   {

  do{

          DosSleep(SLEEP_INTERVAL);

                   if (WorkAvailable) {

    Process Request ( )

    Send Response ( )

   }

  } while (CLENT_CONNECTED)

  DosExit(EXIT_THREAD,0);

 }

Listing : OS/2 threads code example  Upon successful registration, an OS/2 thread is started with the CreateThread(  ) command. The function WorkerThread( ) begins asynchronous execution and loops at specified intervals looking for work to perform. The intervals are created by the DosSleep ( ) function call and  will allow  the thread to periodically  poll for available work.When the client requests closure of the connection or an error occurs, the DosExit( ) function will be performed to exit the current worker thread.


Related Discussions:- Define the os/2 threads code

Macro, What is macro expansion

What is macro expansion

Why is it complicated to protect a system, Q. Why is it complicated to prot...

Q. Why is it complicated to protect a system in which users are allowed to do their own I/O? Answer: In earlier chapters we identified a distinction among kernel and user mod

Facility location, What is the essence of facility location in production o...

What is the essence of facility location in production operation management

Cycle time, when demand is 24000 units/year, production rate is 48000 units...

when demand is 24000 units/year, production rate is 48000 units/year, setup cost is rs 200 per setup, carring cost is rs 20 per units/year, and economic batch quantity is 692.8203

Do ratio analysis of financial statements, Do ratio analysis by comparing t...

Do ratio analysis by comparing the four companies financial statements, analysis and interpretation on the four-basic group : (Refer to attachment A) Liquidity ratio Asset

What is logical address space and physical address space, What is logical a...

What is logical address space and physical address space? The set of all logical addresses formed by a program is known as a logical address space; the set of all physical addr

Write a short note on disk structure, Write a short note on disk structure ...

Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd