[Assorted-commits] SF.net SVN: assorted:[1603] sandbox/trunk/src/nix/buffer

[<yan...@us...>]

Revision: 1603
          http://assorted.svn.sourceforge.net/assorted/?rev=1603&view=rev
Author:   yangzhang
Date:     2010-04-01 18:30:33 +0000 (Thu, 01 Apr 2010)

Log Message:
-----------
added a lot more tests to determine buffering behavior

Modified Paths:
--------------
    sandbox/trunk/src/nix/buffer/go.bash

Added Paths:
-----------
    sandbox/trunk/src/nix/buffer/Gen.java

Added: sandbox/trunk/src/nix/buffer/Gen.java
===================================================================
--- sandbox/trunk/src/nix/buffer/Gen.java	                        (rev 0)
+++ sandbox/trunk/src/nix/buffer/Gen.java	2010-04-01 18:30:33 UTC (rev 1603)
@@ -0,0 +1,9 @@
+public class Gen {
+  public static void main(String[] args) throws Exception {
+    for (int i = 0; i < 3; i++) {
+      System.out.println("a");
+      System.err.println("b");
+      Thread.sleep(300);
+    }
+  }
+}

Modified: sandbox/trunk/src/nix/buffer/go.bash
===================================================================
--- sandbox/trunk/src/nix/buffer/go.bash	2010-04-01 18:29:16 UTC (rev 1602)
+++ sandbox/trunk/src/nix/buffer/go.bash	2010-04-01 18:30:33 UTC (rev 1603)
@@ -1,18 +1,43 @@
 #!/usr/bin/env bash
 
+set -x
 gcc -o gen gen.c
 
 #
 # These buffer.
 #
 
-./gen 2>&1 | tee /dev/null
-expect_unbuffer ./gen 2>&1 | tee /dev/null
+#./gen 2>&1 | tee /dev/null
+#expect_unbuffer ./gen 2>&1 | tee /dev/null
+#
+##
+## These don't buffer.
+##
+#
+#ssh localhost "$(readlink -f "$(dirname "$0")/gen")" 2>&1 | tee /dev/null
+#ssh localhost "expect_unbuffer $(readlink -f "$(dirname "$0")/gen")" 2>&1 | tee /dev/null
+#expect_unbuffer ssh localhost "$(readlink -f "$(dirname "$0")/gen")" 2>&1 | tee /dev/null
+#
+## This is, interestingly enough, not treated as a file.  Equivalent to no
+## piping.
+#./gen > /dev/stdout
 
+# This doesn't work.  You really must use expect_unbuffer everywhere in your
+# pipeline.
+expect_unbuffer bash sub.bash
+
 #
-# These don't buffer.
+# In a pipeline.
 #
 
-ssh localhost "$(readlink -f "$(dirname "$0")/gen")" 2>&1 | tee /dev/null
-ssh localhost "expect_unbuffer $(readlink -f "$(dirname "$0")/gen")" 2>&1 | tee /dev/null
-expect_unbuffer ssh localhost "$(readlink -f "$(dirname "$0")/gen")" 2>&1 | tee /dev/null
+# Everything shows up all at once at the end (as expected).
+./gen 2>&1 | sed 's/ / /' | tee /dev/null
+# XXX why does this hang?!
+expect_unbuffer ./gen 2>&1 | expect_unbuffer sed 's/ / /' | tee /dev/null
+
+#
+# Java is unaffected.
+#
+
+javac Gen.java
+java Gen | tee /dev/null


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