Re: [MacPerl] CGI Threading & File Locking

[Chris Nandor <pudge@pobox.com>]

At 23.31 +0900 2000.02.26, Joel Rees wrote:
>I looked in the archives for this, and somebody said there is a FAQ that
>says that flock() is not available on the Mac. I looked in the on-line
>FAQs and the pods and find no such FAQ. So I read in the perl faq pod
>about files and it says in there that flock() should be the UNIX flock(),
>or call fcntl() if flock() is not available, or call lockf() if fcntl()
>is not available. It may even use a different form of native locking. If
>none of the above is available, it causes a fatal (compile time?) error.
>
>I don't see any specific information that requires me to understand that
>flock() should not work on MacPerl.

See perlport.pod (which does not currently come with MacPerl, but comes
with every perl 5.004_05 and later), which lists all known functions which
do not work or work differently on various platforms than the expected Unix
behavior.  From perlport:

=09flock FILEHANDLE,OPERATION

=09=09Not implemented (Mac=A0OS, VMS, RISC=A0OS, VOS).

=09=09Available only on Windows NT (not on Windows 95). (Win32)


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Chris Nandor          mailto:pudge@pobox.com         http://pudge.net/
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