trey@mcnc.org (Joseph R. Bishop) (05/31/89)
I am writing an application using the X Version 11, Release 3 Toolkit Intrinsics and Athena Widgets. Within the application I make a call to XtAppAddInput passing a socket descriptor as the "source" argument and XtInputReadMask as the "condition" argument. My goal is to call the procedure passed as the "proc" argument each time data is ready to be read from the socket, i.e. each time data is written to its connected peer socket. The procedure itsself reads any data ready to be read from the socket. I ran a small test program where I wrote a single approximately 20 character long string to the peer socket. I expected the procedure to be called once and the character string read. Upon running the the test program, the character string was successfully read. However, instead of proceeding on with the rest of the test program, an infinite loop was entered with the "proc" procedure being called over and over. Any advice? Thanks in advance. Trey Bishop Duke University Department of Electrical Engineering trey@dukee.egr.duke.edu
pusateri@romeo.cs.duke.edu (Thomas J. Pusateri) (05/31/89)
In article <1228@speedy.mcnc.org>, trey@mcnc.org (Joseph R. Bishop) writes: > I ran a small test program where I wrote a single approximately 20 > character long string to the peer socket. I expected the procedure > to be called once and the character string read. Upon running the > the test program, the character string was successfully read. > However, instead of proceeding on with the rest of the test program, > an infinite loop was entered with the "proc" procedure being called > over and over. I experienced a similar problem and realized that I had closed the end of the socket that was writing before I exited the Xt main loop. When you do this, you get an infinite loop because its waiting for an EOF. Try keeping the socket open until you exit your X program. If you want an example or a demonstration, feel free to stop by or send mail or call. Tom Pusateri Duke Medical Center Nanoline Duke Bldg. Room 384A 681-3048 pusateri@nbsr.mc.duke.edu
swick@ATHENA.MIT.EDU (Ralph R Swick) (05/31/89)
> Upon running the > the test program, the character string was successfully read. > However, instead of proceeding on with the rest of the test program, > an infinite loop was entered with the "proc" procedure being called > over and over. Please make sure you have the published fixes installed, at least through fix8. Then, if your problem still occurs, submit a bug report with a demonstration program to reproduce the error to xbugs.