For a very large proportion of uses of fork -- essentially all those using the 'fork & exec' idiom -- system, especially system 1, ... is a far more effective 'emulation'. The spawned process can (by default does) inherit many of the system resources -- open file, pipe and socket handles and the like -- that forked processes inherit under *nix.
But, as Corion correctly points out, there are limitations that prevent it from being a transparent solution to porting forking programs to Windows.
It is possible to provide a more realistic and efficient fork emulation on Windows -- one that uses real processes and even COW memory. Creating the new process and giving it COW access to the parents memory segments is relatively trivial. The difficult part is fixing up the perl internals within the spawned copy.
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||