Fcntl(3) — IRIX 6.5.3f



Fcntl(3)                                                              Fcntl(3)



NAME
     Fcntl - load the C Fcntl.h defines

SYNOPSIS
         use Fcntl;
         use Fcntl qw(:DEFAULT :flock);


DESCRIPTION
     This module is just a translation of the C fnctl.h file.  Unlike the old
     mechanism of requiring a translated fnctl.ph file, this uses the h2xs
     program (see the Perl source distribution) and your native C compiler.
     This means that it has a far more likely chance of getting the numbers
     right.

NOTE
     Only #define symbols get translated; you must still correctly pack up
     your own arguments to pass as args for locking functions, etc.

EXPORTED SYMBOLS
     By default your system's F_* and O_* constants (eg, F_DUPFD and O_CREAT)
     and the FD_CLOEXEC constant are exported into your namespace.

     You can request that the flock() constants (LOCK_SH, LOCK_EX, LOCK_NB and
     LOCK_UN) be provided by using the tag :flock.  See the Exporter manpage.

     You can request that the old constants (FAPPEND, FASYNC, FCREAT, FDEFER,
     FEXCL, FNDELAY, FNONBLOCK, FSYNC, FTRUNC) be provided for compatibility
     reasons by using the tag :Fcompat.  For new applications the newer
     versions of these constants are suggested (O_APPEND, O_ASYNC, O_CREAT,
     O_DEFER, O_EXCL, O_NDELAY, O_NONBLOCK, O_SYNC, O_TRUNC).

     Please refer to your native fcntl() and open() documentation to see what
     constants are implemented in your system.





















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