perlfunc root Fcntl - load the C Fcntl.h defines <HR> <PRE> use Fcntl; use Fcntl qw(:DEFAULT :flock); </PRE> <HR> 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. <HR> <H1><A NAME="NOTE">NOTE</A></H1> Only <CODE>#define</CODE> symbols get translated; you must still correctly pack up your own arguments to pass as args for locking functions, etc. <HR> <H1><A NAME="EXPORTED_SYMBOLS">EXPORTED SYMBOLS</A></H1> 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 <CODE>flock()</CODE> constants (LOCK_SH, LOCK_EX, LOCK_NB and LOCK_UN) be provided by using the tag [perlfunc:flock|flock]. See [perlman:lib:Exporter|Exporter]. 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 <CODE>:Fcompat</CODE>. 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 <CODE>fcntl()</CODE> and <CODE>open()</CODE> documentation to see what constants are implemented in your system. <HR>