Posted Mar 17, 2009 17:22 UTC (Tue) by SteveKnodle (guest, #7853)
Parent article: Better than POSIX?
This discussion completely misrepresents what POSIX conformance means.
The POSIX standards represent an essentially "minimal" set of requirements,
so that any application written to to POSIX standard will run on a wide
variety of computers. VMS has a "posix" API. and I believe VM370 also.
Each OS adds additional properties that developers rely on when writing
applications that require specific behavior. The SysVR4 interface standards
are one example. Ext4 needs to obey POSIX requirements, and provide a
predictable, dependable behavior (beyond POSIX) that developers can use
to write useful programs.