Filesys-Df-0.92/0040755000000000000000000000000010447422337012121 5ustar rootrootFilesys-Df-0.92/XS_statvfs0100644000000000000000000000345110431774522014147 0ustar rootroot#ifdef __cplusplus extern "C" { #endif #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #include #ifdef __cplusplus } #endif typedef struct statvfs Statvfs; MODULE = Filesys::Df PACKAGE = Filesys::Df void _df(dir) char *dir PREINIT: Statvfs st; PPCODE: EXTEND(sp, 7); if(statvfs(dir, &st) == 0) { /* Push values as doubles because we don't know size */ PUSHs(sv_2mortal(newSVnv((double)st.f_frsize))); PUSHs(sv_2mortal(newSVnv((double)st.f_blocks))); PUSHs(sv_2mortal(newSVnv((double)st.f_bfree))); PUSHs(sv_2mortal(newSVnv((double)st.f_bavail))); PUSHs(sv_2mortal(newSVnv((double)st.f_files))); PUSHs(sv_2mortal(newSVnv((double)st.f_ffree))); PUSHs(sv_2mortal(newSVnv((double)st.f_favail))); } else { PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); } void _df_fh(fd) int fd; PREINIT: Statvfs st; PPCODE: EXTEND(sp, 7); if(fstatvfs(fd, &st) == 0) { /* Push values as doubles because we don't know size */ PUSHs(sv_2mortal(newSVnv((double)st.f_frsize))); PUSHs(sv_2mortal(newSVnv((double)st.f_blocks))); PUSHs(sv_2mortal(newSVnv((double)st.f_bfree))); PUSHs(sv_2mortal(newSVnv((double)st.f_bavail))); PUSHs(sv_2mortal(newSVnv((double)st.f_files))); PUSHs(sv_2mortal(newSVnv((double)st.f_ffree))); PUSHs(sv_2mortal(newSVnv((double)st.f_favail))); } else { PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); } Filesys-Df-0.92/META.yml0100644000000000000000000000044410447422337013371 0ustar rootroot# http://module-build.sourceforge.net/META-spec.html #XXXXXXX This is a prototype!!! It will change in the future!!! XXXXX# name: Filesys-Df version: 0.92 version_from: Df.pm installdirs: site requires: distribution_type: module generated_by: ExtUtils::MakeMaker version 6.30 Filesys-Df-0.92/test.pl0100644000000000000000000000336410432020300013412 0ustar rootroot# Before `make install' is performed this script should be runnable with # `make test'. After `make install' it should work as `perl test.pl' ######################### We start with some black magic to print on failure. # Change 1..1 below to 1..last_test_to_print . # (It may become useful if the test is moved to ./t subdirectory.) BEGIN { $| = 1; print "1..2\n"; } END {print "not ok 1\n" unless $loaded;} require 5.006; use Config qw(%Config); use Filesys::Df; $loaded = 1; print "ok 1\n"; ######################### End of black magic. my $dir = "/"; my $ref = Filesys::Df::df($dir); defined($ref) and print"ok 2\n" or die "not ok 2\ndf\(\) call failed for \"$dir\" $!\n"; open(FILE, "./test.pl") or die "$! ./test.pl\n"; my $fh_ref = Filesys::Df::df(\*FILE); close(FILE); defined($fh_ref) and print"ok 3\n\n" or die "not ok 3\ndf\(\) call failed for \"test.pl\" $!\n"; print"Results for directory: \"$dir\" in 1K blocks:\n"; print "Total: $ref->{blocks}\n"; print "Free: $ref->{bfree}\n"; print "Available: $ref->{bavail}\n"; print "Used: $ref->{used}\n"; print "Percent Full: $ref->{per}\n"; if(exists($ref->{files})) { print "Total Inodes: $ref->{files}\n"; print "Free Inodes: $ref->{ffree}\n"; print "Inode Percent Full: $ref->{fper}\n"; } print "\nResults for \"test.pl\" filehandle in 1K blocks:\n"; print "Total: $fh_ref->{blocks}\n"; print "Free: $fh_ref->{bfree}\n"; print "Available: $fh_ref->{bavail}\n"; print "Used: $fh_ref->{used}\n"; print "Percent Full: $fh_ref->{per}\n"; if(exists($fh_ref->{files})) { print "Total Inodes: $fh_ref->{files}\n"; print "Free Inodes: $fh_ref->{ffree}\n"; print "Inode Percent Full: $fh_ref->{fper}\n\n"; } print"All tests successful!\n\n"; Filesys-Df-0.92/Changes0100644000000000000000000000043010447414374013410 0ustar rootrootRevision history for Perl extension Filesys::Df 0.90 Sat May 15 01:29:11 2006 - Rewrote most of the module 0.91 Fri Jun 23 10:25:11 2006 - Cleaned up documentation a little. No code changes. 0.92 Sat Jun 24 11:02:11 2006 - More documentation changes. No code changes. Filesys-Df-0.92/MANIFEST0100644000000000000000000000025010431774530013242 0ustar rootrootMakefile.PL MANIFEST README Df.pm XS_statvfs XS_statfs test.pl typemap Changes META.yml Module meta-data (added by MakeMaker) Filesys-Df-0.92/typemap0100644000000000000000000000006610431774100013511 0ustar rootrootTYPEMAP Statvfs T_PTRREF Statfs T_PTRREF Filesys-Df-0.92/Df.pm0100644000000000000000000002607410447414271013014 0ustar rootrootpackage Filesys::Df; use strict; use vars qw($VERSION @ISA @EXPORT @EXPORT_OK); use Carp; require Exporter; require DynaLoader; require 5.006; @ISA = qw(Exporter DynaLoader); @EXPORT = qw(df); $VERSION = '0.92'; bootstrap Filesys::Df $VERSION; sub df { my ($dir, $block_size) = @_; my ($used, $fused); my ($per, $fper); my ($user_blocks, $user_used); my ($user_files, $user_fused); my %fs = (); (defined($dir)) || (croak "Usage: df\(\$dir\) or df\(\$dir\, \$block_size)"); #### If no requested block size then we will return the values in bytes ($block_size) || ($block_size = 1024); my ($frsize, $blocks, $bfree, $bavail, $files, $ffree, $favail); #### If open filehandle call fstatvfs or fstatfs if(defined(fileno($dir))) { ($frsize, $blocks, $bfree, $bavail, $files, $ffree, $favail) = _df_fh(fileno($dir)); } else { ($frsize, $blocks, $bfree, $bavail, $files, $ffree, $favail) = _df($dir); } #### Some system or XS failure, something like /proc, or bad $dir if($frsize == 0 || $blocks == 0) { return(); } #### Change to requested or default block size if($block_size > $frsize) { my $result = $block_size / $frsize; $blocks /= $result; ($bfree != 0) && ($bfree /= $result); #### Keep bavail - ($bavail < 0) && ($result *= -1); ($bavail != 0) && ($bavail /= $result); } elsif($block_size < $frsize) { my $result = $frsize / $block_size; $blocks *= $result; $bfree *= $result; #### Keep bavail - ($bavail < 0) && ($result *= -1); $bavail *= $result; } $used = $blocks - $bfree; #### There is a reserved amount for the su #### or there are disk quotas if($bfree > $bavail) { $user_blocks = $blocks - ($bfree - $bavail); $user_used = $user_blocks - $bavail; if($bavail < 0) { #### over 100% my $tmp_bavail = $bavail; $per = ($tmp_bavail *= -1) / $user_blocks; } else { if($user_used == 0) { $per = 0; } else { $per = $user_used / $user_blocks; } } } #### No reserved amount or quotas else { if($used == 0) { $per = 0; } else { $per = $used / $blocks; $user_blocks = $blocks; $user_used = $used; } } #### round $per *= 100; $per += .5; #### over 100% ($bavail < 0) && ($per += 100); $fs{per} = int($per); $fs{blocks} = $blocks; $fs{bfree} = $bfree; $fs{bavail} = $bavail; $fs{used} = $used; #### These are undocumented but kept for backwards compatibility $fs{user_blocks} = $user_blocks; $fs{user_bavail} = $bavail; $fs{user_used} = $user_used; $fs{su_bavail} = $bfree; $fs{su_blocks} = $blocks; #### Handle inodes if system supports them if(defined $files && $files > 0) { $fused = $files - $ffree; #### There is a reserved amount if($ffree > $favail) { $user_files = $files - ($ffree - $favail); $user_fused = $user_files - $favail; if($favail < 0) { #### over 100% my $tmp_favail = $favail; $fper = ($tmp_favail *= -1) / $user_files; } else { if($user_fused == 0) { $fper = 0; } else { $fper = $user_fused / $user_files; } } } #### su and user amount are the same else { if($fused == 0) { $fper = 0; } else { $fper = $fused / $files; } $user_files = $files; $user_fused = $fused; } #### round $fper *= 100; $fper += .5; #### over 100% ($favail < 0) && ($fper += 100); $fs{fper} = int($fper); $fs{files} = $files; $fs{ffree} = $ffree; $fs{favail} = $favail; $fs{fused} = $fused; #### These are undocumented but kept for backwards compatibility $fs{user_fused} = $user_fused; $fs{user_files} = $user_files; $fs{su_favail} = $ffree; $fs{su_files} = $files; $fs{user_favail} = $favail; } #### No valid inode info. Probably NFS. #### Instead of undefing, just have the user call exists(). #else { # $fs{fper} = undef; # $fs{files} = undef; # $fs{ffree} = undef; # $fs{favail} = undef; # $fs{fused} = undef; # $fs{user_fused} = undef; # $fs{user_files} = undef; #} return(\%fs); } 1; __END__ =head1 NAME Filesys::Df - Perl extension for filesystem disk space information. =head1 SYNOPSIS use Filesys::Df; #### Get information by passing a scalar directory/filename value my $ref = df("/tmp"); # Default output is 1K blocks if(defined($ref)) { print "Total 1k blocks: $ref->{blocks}\n"; print "Total 1k blocks free: $ref->{bfree}\n"; print "Total 1k blocks avail to me: $ref->{bavail}\n"; print "Total 1k blocks used: $ref->{used}\n"; print "Percent full: $ref->{per}\n"; if(exists($ref->{files})) { print "Total inodes: $ref->{files}\n"; print "Total inodes free: $ref->{ffree}\n"; print "Inode percent full: $ref->{fper}\n"; } } #### Get information by passing a filehandle open(FILE, "some_file"); # Get information for filesystem at "some_file" my $ref = df(\*FILE); #### or my $ref = df(*FILE); #### or my $fhref = \*FILE; my $ref = df($fhref); #### Get information in other than 1k blocks my $ref = df("/tmp", 8192); # output is 8K blocks my $ref = df("/tmp", 1); # output is bytes =head1 DESCRIPTION This module provides a way to obtain filesystem disk space information. This is a Unix only distribution. If you want to gather this information for Unix and Windows, use C. The only major benefit of using C over C, is that C supports the use of open filehandles as arguments. The module should work with all flavors of Unix that implement the C and C calls, or the C and C calls. This would include Linux, *BSD, HP-UX, AIX, Solaris, Mac OS X, Irix, Cygwin, etc ... C requires a argument that represents the filesystem you want to query. The argument can be either a scalar directory/file name or a open filehandle. There is also an optional block size argument so you can tailor the size of the values returned. The default block size is 1024. This will cause the function to return the values in 1k blocks. If you want bytes, set the block size to 1. C returns a reference to a hash. The keys available in the hash are as follows: C<{blocks}> = Total blocks on the filesystem. C<{bfree}> = Total blocks free on the filesystem. C<{bavail}> = Total blocks available to the user executing the Perl application. This can be different than C<{bfree}> if you have per-user quotas on the filesystem, or if the super user has a reserved amount. C<{bavail}> can also be a negative value because of this. For instance if there is more space being used then you have available to you. C<{used}> = Total blocks used on the filesystem. C<{per}> = Percent of disk space used. This is based on the disk space available to the user executing the application. In other words, if the filesystem has 10% of its space reserved for the superuser, then the percent used can go up to 110%. You can obtain inode information through the module as well, but you must call C on the C<{files}> key first, to make sure the information is available. Some filesystems may not return inode information, for example some NFS filesystems. Here are the available inode keys: C<{files}> = Total inodes on the filesystem. C<{ffree}> = Total inodes free on the filesystem. C<{favail}> = Total inodes available to the user executing the application. See the rules for the C<{bavail}> key. C<{fused}> = Total inodes used on the filesystem. C<{fper}> = Percent of inodes used on the filesystem. See rules for the C<{per}> key. There are some undocumented keys that are defined to maintain backwards compatibilty: C<{su_blocks}>, C<{user_blocks}>, etc ... If the C call fails for any reason, it will return undef. This will probably happen if you do anything crazy like try to get information for /proc, or if you pass an invalid filesystem name, or if there is an internal error. C will C if you pass it a undefined value. Requirements: Your system must contain C and C, or C and C You must be running Perl 5.6 or higher. =head1 AUTHOR Ian Guthrie IGuthrie@aol.com Copyright (c) 2006 Ian Guthrie. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =head1 SEE ALSO statvfs(2), fstatvfs(2), statfs(2), fstatfs(2), df(1), Filesys::DfPortable perl(1). =cut Filesys-Df-0.92/XS_statfs0100644000000000000000000000416510432020121013740 0ustar rootroot#ifdef __cplusplus extern "C" { #endif #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #ifdef DF_STATFS_USE_MOUNT #include #include #endif #ifdef DF_STATFS #include #endif #ifdef __cplusplus } #endif typedef struct statfs Statfs; MODULE = Filesys::Df PACKAGE = Filesys::Df void _df(dir) char *dir PREINIT: Statfs st; PPCODE: EXTEND(sp, 7); #ifdef DF_SOLARIS if(statfs(dir, &st, 0, 0) == 0) { #else if(statfs(dir, &st) == 0) { #endif PUSHs(sv_2mortal(newSVnv((double)st.f_bsize))); PUSHs(sv_2mortal(newSVnv((double)st.f_blocks))); PUSHs(sv_2mortal(newSVnv((double)st.f_bfree))); #ifdef DF_SOLARIS PUSHs(sv_2mortal(newSVnv((double)st.f_bfree))); #else PUSHs(sv_2mortal(newSVnv((double)st.f_bavail))); #endif PUSHs(sv_2mortal(newSVnv((double)st.f_files))); PUSHs(sv_2mortal(newSVnv((double)st.f_ffree))); /* No favail */ PUSHs(sv_2mortal(newSVnv((double)st.f_ffree))); } else { PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); } void _df_fh(fd) int fd PREINIT: Statfs st; PPCODE: EXTEND(sp, 7); #ifdef DF_SOLARIS if(fstatfs(fd, &st, 0, 0) == 0) { #else if(fstatfs(fd, &st) == 0) { #endif PUSHs(sv_2mortal(newSVnv((double)st.f_bsize))); PUSHs(sv_2mortal(newSVnv((double)st.f_blocks))); PUSHs(sv_2mortal(newSVnv((double)st.f_bfree))); #ifdef DF_SOLARIS PUSHs(sv_2mortal(newSVnv((double)st.f_bfree))); #else PUSHs(sv_2mortal(newSVnv((double)st.f_bavail))); #endif PUSHs(sv_2mortal(newSVnv((double)st.f_files))); PUSHs(sv_2mortal(newSVnv((double)st.f_ffree))); /* No favail */ PUSHs(sv_2mortal(newSVnv((double)st.f_ffree))); } else { PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); PUSHs(sv_2mortal(newSVuv(0))); } Filesys-Df-0.92/Makefile.PL0100644000000000000000000001074210432020460014055 0ustar rootrootuse ExtUtils::MakeMaker; use Config qw(%Config); #### Build information my $statvfs_header = "sys/statvfs.h"; my $statfs_header = "sys/statfs.h"; my $statvfs_symbol = "d_statvfs"; my $statvfs_header_def = "i_sysstatvfs"; my $statfs_symbol = "d_statfs_s"; #### Really the struct def, we equate it to statfs being defined my $statfs_header_def = "i_sysstatfs"; my $define = ""; my $statfs_use_mount = 0; my $xs_file = 'Df.xs'; print "OS = $Config{osname}\n"; #### Windows if($Config{osname} =~ /^MSWin/i) { print "This module does not support Windows.\n"; die "You might try Filesys::DfPortable instead.\n"; } #### Check for the existance of statvfs if(check_statvfs()) { ####$define .= "-DDF_STATVFS "; copy_xs("XS_statvfs", $xs_file); print "Building with statvfs ....\n"; } #### Check for the existance of statfs elsif(check_statfs()) { #### use_mount needed for headers ($statfs_use_mount) && ($define .= "-DDF_STATFS_USE_MOUNT ") || ($define .= "-DDF_STATFS "); #### Needed for 4 arg statfs ($Config{osname} =~ /^solaris$/i) && ($define .= "-DDF_SOLARIS "); copy_xs("XS_statfs", $xs_file); print "Building with statfs ....\n"; } #### OS/2, old Mac, etc else { print "We could not find statvfs, or statfs.\n"; die "You need at least one of these to build this module.\n"; } sub check_statvfs { print "Checking for statvfs .....\n"; if(exists $Config{$statvfs_symbol} && defined $Config{$statvfs_symbol}) { print "$statvfs_symbol is defined.\n"; if(exists $Config{$statvfs_header_def} && defined $Config{$statvfs_header_def}) { print "$statvfs_header_def is defined.\n"; return(1); } else { print "Weird, $statvfs_header_def is not defined.\n"; #### Have never seen a system with statvfs and no sys/statvfs.h header #### Lets see if we can find one if(look_for_header($statvfs_header)) { return(1); } else { #### no idea what header would be print "Cannot find a $statvfs_header file\n"; print "We will not try to build with statvfs\n"; return(0); } } } else { print "$statvfs_symbol is not defined\n"; ### OK if we find a header should we build with it? if(look_for_header($statvfs_header)) { return(1); } else { #### don't use statvfs print "Cannot find a $statvfs_header file\n"; print "We will not try to build with statvfs\n"; return(0); } } return(0); } sub check_statfs { print "Checking for statfs .....\n"; if(exists $Config{$statfs_symbol} && defined $Config{$statfs_symbol}) { print "Good, $statfs_symbol is defined.\n"; if(exists $Config{$statfs_header_def} && defined $Config{$statfs_header_def}) { print "$statfs_header_def is defined.\n"; return(1); } else { print "$statfs_header_def not defined.\n"; #### check for BSD and Darwin if($Config{osname} =~ /^darwin|^bsd|bsd$/i) { print "You are running Darwin or BSD.\n"; print "Will assume you need the mount.h and param.h headers.\n"; $statfs_use_mount = 1; return(1); } elsif(look_for_header($statfs_header)) { return(1); } else { #### don't use statfs print "Cannot find a $statfs_header file\n"; print "We will not try to build Statfs\n"; } } } else { print "$statfs_symbol is not defined\n"; if(look_for_header($statfs_header)) { return(1); } else { print "Cannot find a $statfs_header file\n"; print "We will not try to build Statfs\n"; return(0); } } return(0); } sub copy_xs { my $source = shift; my $dest = shift; open(SOURCE, "$source") or die "$! $source\n"; open(DEST, ">$dest") or die "$! $dest\n"; @contents = ; print DEST @contents; close(DEST); close(SOURCE); } sub look_for_header { my $header = shift; #my @header_inc = split(/\s+/, join(" ", $Config{usrinc}, $Config{locincpth})); my @header_inc = split(/\s+/, join(" ", $Config{usrinc})); foreach $header_path (@header_inc) { if(-f $header_path . '/' . $header) { print "Header found:" , $header_path . '/' . $header, "\n"; return(1); } } return(0); } WriteMakefile( 'NAME' => 'Filesys::Df', 'VERSION_FROM' => 'Df.pm', # finds $VERSION 'LIBS' => [''], # e.g., '-lm' 'DEFINE' => $define, # e.g., '-DHAVE_SOMETHING' 'INC' => '', # e.g., '-I/usr/include/other' 'clean' => {FILES => 'Df.xs'}, 'XSPROTOARG' => '-prototypes' ); Filesys-Df-0.92/README0100644000000000000000000001362410447415362013004 0ustar rootrootINSTALL TO INSTALL RUN: perl Makefile.PL make make test make install During the build process, the makefile will try to figure out which system calls to use to obtain filesystem information. It will look for statvfs() first via the Config module and a include directory search. If it locates statvfs(), it will assume the system also has fstatvfs(). If it cannot find statvfs(), it will then begin the same search for statfs(). If statfs() is found it will assume fstatfs() is also available. During the 'make test', test.pl will try to test with '/' and then open test.pl in the current directory and use that for a filehandle test. Once installed, run 'perldoc Filesys::Df' for more information. If you have any problems or questions please email me at IGuthrie@aol.com with "Filesys::Df" in the subject line. If you run into a build problem, please include the output of the install commands, the version of Perl you are using (perl -v), and what operating system you are using. Module Documentation: This distribution contains the module Filesys::Df Filesys::Df - Perl extension for filesystem disk space information. SYNOPSIS use Filesys::Df; #### Get information by passing a scalar directory/filename value my $ref = df("/tmp"); # Default output is 1K blocks if(defined($ref)) { print "Total 1k blocks: $ref->{blocks}\n"; print "Total 1k blocks free: $ref->{bfree}\n"; print "Total 1k blocks avail to me: $ref->{bavail}\n"; print "Total 1k blocks used: $ref->{used}\n"; print "Percent full: $ref->{per}\n"; if(exists($ref->{files})) { print "Total inodes: $ref->{files}\n"; print "Total inodes free: $ref->{ffree}\n"; print "Inode percent full: $ref->{fper}\n"; } } #### Get information by passing a filehandle open(FILE, "some_file"); # Get information for filesystem at "some_file" my $ref = df(\*FILE); #### or my $ref = df(*FILE); #### or my $fhref = \*FILE; my $ref = df($fhref); #### Get information in other than 1k blocks my $ref = df("/tmp", 8192); # output is 8K blocks my $ref = df("/tmp", 1); # output is bytes DESCRIPTION This module provides a way to obtain filesystem disk space information. This is a Unix only distribution. If you want to gather this information for Unix and Windows, use Filesys::DfPortable. The only major benefit of using Filesys::Df over Filesys::DfPortable, is that Filesys::Df supports the use of open filehandles as arguments. The module should work with all flavors of Unix that implement the statvfs() and fstatvfs() calls, or the statfs() and fstatfs() calls. This would include Linux, *BSD, HP-UX, AIX, Solaris, Mac OS X, Irix, Cygwin, etc ... df() requires a argument that represents the filesystem you want to query. The argument can be either a scalar directory/file name or a open filehandle. There is also an optional block size argument so you can tailor the size of the values returned. The default block size is 1024. This will cause the function to return the values in 1k blocks. If you want bytes, set the block size to 1. df() returns a reference to a hash. The keys available in the hash are as follows: {blocks} = Total blocks on the filesystem. {bfree} = Total blocks free on the filesystem. {bavail} = Total blocks available to the user executing the Perl application. This can be different than bfree if you have per-user quotas on the filesystem, or if the super user has a reserved amount. {bavail} can also be a negative value because of this. For instance if there is more space being used then you have available to you. {used} = Total blocks used on the filesystem. {per} = Percent of disk space used. This is based on the disk space available to the user executing the application. In other words, if the filesystem has 10% of its space reserved for the superuser, then the percent used can go up to 110%. You can obtain inode information through the module as well. But you must call exists() on the {files} key to make sure the information is available: if(exists($ref->{files})) { #### Inode info is available } Some filesystems may not return inode information, for example some NFS filesystems. Here are the available inode keys: {files} = Total inodes on the filesystem. {ffree} = Total inodes free on the filesystem. {favail} = Total inodes available to the user executing the application. See the rules for the {bavail} key. {fused} = Total inodes used on the filesystem. {fper} = Percent of inodes used on the filesystem. See rules for the {per} key. There are some undocumented keys that are defined to maintain backwards compatibility: {su_blocks}, {user_blocks}, etc ... If the df() call fails for any reason, it will return undef. This will probably happen if you do anything crazy like try to get information for /proc, or if you pass an invalid filesystem name, or if there is an internal error. df() will croak() if you pass it a undefined value. Requirements: Your system must contain statvfs() and fstatvfs(), or statfs() and fstatfs() You must be running Perl 5.6 or higher. Copyright (c) 2006 Ian Guthrie. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.