[Issue 649] New: format() hangs in thread

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=649

           Summary: format() hangs in thread
           Product: D
           Version: 0.176
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: korslund at gmail.com


The following thread program hangs upon calling format() from a thread. The
call to sleep() is to make sure that 't' is deleted before the thread exits.

import std.thread;
import std.string;

extern(C) uint sleep(uint secs);

class Test
{
  Thread thr;

  int printStats()
    { 
      sleep(1);
      format(1); // Program hangs at this point
      return 0;
    }

  this()
    {
      thr = new Thread(&printStats);
      thr.start();
    }

  ~this()
    {
      thr.wait();
    }
}

void main()
{
  Test t = new Test();
  delete t;
}

The following things will prevent the bug from occuring:
- remove the call to format()
- make the thread finish before 't' is deleted
- remove the call to thr.wait() from the destructor, or call it from
  somewhere else

Nick


--