Name: sgC58550 Date: 03/21/97


Seems that opening a named pipe file blocks all other threads
in solaris. I run into this problem in a larger System and was
able to reproduce it with the following code snippet. This is
a serious bug, the whole process just "hangs" until
something is sent to the pipe. Run the program with a named
pipe named "namedpipe" in the current directory (to be created
with "mkfifo namedpipe").

Pipetest.java:import java.io.*;
 
class Pipetest extends Thread
{
 
    public void run()
    {
        try
        {
            System.out.println("opening pipe");
            new FileInputStream("namedpipe");
            System.out.println("pipe open");
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
 
    public static void main(String args[])
    {
        System.out.println("Starting thread which opens a pipe");
        new Pipetest().start();
        System.out.println("Thread started");
        while(true)
        {
            yield();
            System.out.println("main thread running");
        }
    }
}



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