Re: [Chicken-janitors] #765: broken posix/process function under Windows 7 (MingW)

[Chicken Trac]

#765: broken posix/process function under Windows 7 (MingW)
-----------------------------+----------------------------------------------
  Reporter:  Karl_H          |       Owner:       
      Type:  defect          |      Status:  new  
  Priority:  major           |   Milestone:  4.8.0
 Component:  core libraries  |     Version:  4.7.x
Resolution:                  |    Keywords:       
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Comment(by sjamaan):

 The docs for [http://msdn.microsoft.com/en-
 us/library/windows/desktop/ms682425%28v=vs.85%29.aspx CreateProcess] and
 [http://msdn.microsoft.com/en-
 us/library/windows/desktop/ms686331%28v=vs.85%29.aspx STARTUPINFO] seem to
 hint that either STARTF_USESTDHANDLES is set and all three of StdIn,
 StdOut and StdErr must be set and must be valid FDs, or
 STARTF_USESTDHANDLES is not set and the handles are ignored.

 "The caller is responsible for ensuring that the standard handle fields in
 STARTUPINFO contain valid handle values. These fields are copied unchanged
 to the child process without validation, even when the dwFlags member
 specifies STARTF_USESTDHANDLES. Incorrect values can cause the child
 process to misbehave or crash. Use the Application Verifier runtime
 verification tool to detect invalid handles"

 I wonder if that "Application Verifier" program indeed points out that
 Chicken is doing something wrong?  Might be a good idea to run it anyway,
 and see what it comes up with. Perhaps this can help us find other
 annoying Windows bugs.

-- 
Ticket URL: <http://bugs.call-cc.org/ticket/765#comment:1>
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