[Bug libgcj/11778] New: System.out PrintStream does too much buffering

[Bug libgcj/11778] New: System.out PrintStream does too much buffering

[bryce at mckinlay dot net dot nz]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11778

           Summary: System.out PrintStream does too much buffering
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bryce at mckinlay dot net dot nz
                CC: gcc-bugs at gcc dot gnu dot org

Compare the output of the following test case (from current CVS) compared with the JRE or an 
earlier libgcj:

public class testOut
{
  public static void main(String[] args) throws InterruptedException
  {
    for (int i=0; i < 20; i++)
    {
      System.out.print(".");
      Thread.sleep(100);
    }
  }
}

System.out is buffering the output too aggressively.

[Bug libgcj/11778] System.out PrintStream does too much buffering

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11778



------- Additional Comments From pinskia at physics dot uc dot edu  2003-08-03 13:52 -------
I do not think you should depend on when the stream flushes but if you want the stream 
to flush, flush it.

[Bug libgcj/11778] System.out PrintStream does too much buffering

[bryce at mckinlay dot net dot nz]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11778


bryce at mckinlay dot net dot nz changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-08-05 03:54:01
               date|                            |

[Bug libgcj/11778] System.out PrintStream does too much buffering

[cvs-commit at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11778



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-08-10 02:53 -------
Subject: Bug 11778

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	bryce@gcc.gnu.org	2003-08-10 02:53:18

Modified files:
	libjava        : ChangeLog 
	libjava/java/io: PrintStream.java 

Log message:
	* java/io/PrintStream.java (print): Always flush if auto_flush is
	set. Don't check for newline characters.
	(write (int)): Implement without using a temporary array.
	(write (byte[], int, int): Always flush if auto_flush is set. Don't
	check for newline characters.
	Fixes PR libgcj/11778.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/ChangeLog.diff?cvsroot=gcc&r1=1.2095&r2=1.2096
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/PrintStream.java.diff?cvsroot=gcc&r1=1.22&r2=1.23

[Bug libgcj/11778] System.out PrintStream does too much buffering

[bryce at mckinlay dot net dot nz]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11778


bryce at mckinlay dot net dot nz changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


------- Additional Comments From bryce at mckinlay dot net dot nz  2003-08-10 02:54 -------
Fix checked in.