Backport #3602: stdout not set in rubyw.exe, causes silent failures

• Status: Closed
• Assignee: shyouhei (Shyouhei Urabe)

[Fitzsimmons (Justin Fitzsimmons)]

=begin
Attempting to write anything to stdout will cause the program to silently crash when executed with rubyw.exe on windows.

The problem is trivial to duplicate:

Source:

f = File.new("test.txt", "w")
f.write("failure")
f.close
puts "Hello, World"
f = File.new("test.txt", "w")
f.write("success")
f.close

---

Execution output:

C:>ruby test.rb
Hello, World

C:>type test.txt
success

C:>rubyw test.rb

C:>type test.txt
failure

-----END OUTPUT----------------

This bug is not present in the 1.9.1 build of ruby for windows. A workaround is available, by providing a valid file descriptor for stdout, e.g. $stdout = File.new("stdout.txt", "w").
=end

[raggi (James Tucker)]

=begin

On 22 Jul 2010, at 15:59, Justin Fitzsimmons wrote:

Backport #3602: stdout not set in rubyw.exe, causes silent failures
http://redmine.ruby-lang.org/issues/show/3602

Author: Justin Fitzsimmons
Status: Open, Priority: Normal

Attempting to write anything to stdout will cause the program to silently crash when executed with rubyw.exe on windows.

The problem is trivial to duplicate:

Source:

f = File.new("test.txt", "w")
f.write("failure")
f.close
puts "Hello, World"
f = File.new("test.txt", "w")
f.write("success")
f.close

---

Execution output:

C:>ruby test.rb
Hello, World

C:>type test.txt
success

C:>rubyw test.rb

C:>type test.txt
failure

-----END OUTPUT----------------

This bug is not present in the 1.9.1 build of ruby for windows. A workaround is available, by providing a valid file descriptor for stdout, e.g. $stdout = File.new("stdout.txt", "w").

I might recommend a sane default being actually to set them to IO.new("NUL:", ..) on win32.

Defaulting to anything else either causes silent crashes due to ruby code, or potentially due to filesystem access issues.

=end

[nobu (Nobuyoshi Nakada)]

=begin
r11362.
=end

[nobu (Nobuyoshi Nakada)]

• Category set to core
• Status changed from Open to Assigned
• Assignee set to usa (Usaku NAKAMURA)

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=end

[usa (Usaku NAKAMURA)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

=begin
This issue was solved with changeset r29382.
Justin, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end

[usa (Usaku NAKAMURA)]

• Status changed from Closed to Assigned
• Assignee changed from usa (Usaku NAKAMURA) to shyouhei (Shyouhei Urabe)
• Category set to core
• Priority changed from Normal to 3

=begin

=end

[shyouhei (Shyouhei Urabe)]

• Status changed from Assigned to Closed

=begin
This issue was solved with changeset r29862.
Justin, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end