|author||Rich Felker <email@example.com>||2011-08-12 10:37:12 -0400|
|committer||Rich Felker <firstname.lastname@example.org>||2011-08-12 10:37:12 -0400|
this is a "nonstandard" function that was "rejected" by POSIX, but nonetheless had its behavior documented in the POSIX rationale for fork. it's present on solaris and possibly some other systems, and duplicates the whole calling process, not just a single thread. glibc does not have this function. it should not be used in programs intending to be portable, but may be useful for testing, checkpointing, etc. and it's an interesting (and quite small) example of the usefulness of the __synccall framework originally written to work around deficiencies in linux's setuid syscall.
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