apr::finfo.3

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.\" ========================================================================
.\"
.IX Title "mod_perl-2.0.2::docs::api::APR::Finfo 3"
.TH mod_perl-2.0.2::docs::api::APR::Finfo 3 "2005-10-21" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
APR::Finfo \- Perl API for APR fileinfo structure
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 3
\&  use APR::Finfo ();
\&  use APR::Const \-compile => qw(FINFO_NORM);
\&  my $finfo = APR::Finfo::stat("/tmp/test", APR::Const::FINFO_NORM, $pool);
\&  
\&  $device = $finfo\->device;     # (stat $file)[0]
\&  $inode  = $finfo\->inode;      # (stat $file)[1]
\&  $prot   = $finfo\->protection; # (stat $file)[2]
\&  $nlink  = $finfo\->nlink;      # (stat $file)[3]
\&  $gid    = $finfo\->group;      # (stat $file)[4]
\&  $uid    = $finfo\->user;       # (stat $file)[5]
\&  $size   = $finfo\->size;       # (stat $file)[7]
\&  $atime  = $finfo\->atime;      # (stat $file)[8]
\&  $mtime  = $finfo\->mtime;      # (stat $file)[9]
\&  $ctime  = $finfo\->ctime;      # (stat $file)[10]
\&  
\&  $csize = $finfo\->csize; # consumed size: not portable!
\&  
\&  $filetype = $finfo\->filetype; # file/dir/socket/etc
\&  
\&  $fname = $finfo\->fname;
\&  $name  = $finfo\->name;  # in filesystem case:
\&  
\&  # valid fields that can be queried
\&  $valid = $finfo\->valid;
.Ve
.SH "Description"
.IX Header "Description"
\&\s-1APR\s0 fileinfo structure provides somewhat similar information to Perl's
\&\f(CW\*(C`stat()\*(C'\fR call, but you will want to use this module's \s-1API\s0 to query an
already \f(CW\*(C`stat()\*(Aqed\*(C'\fR filehandle to avoid an extra system call or to
query attributes specific to \s-1APR\s0 file handles.
.PP
During the \s-1HTTP\s0 request handlers coming after
\&\f(CW\*(C`PerlMapToStorageHandler\*(C'\fR,
\&\f(CW\*(C`$r\->finfo\*(C'\fR
already contains the cached values from the apr's \f(CW\*(C`stat()\*(C'\fR call. So
you don't want to perform it again, but instead get the \f(CW\*(C`ARP::Finfo\*(C'\fR
object via:
.PP
.Vb 1
\&  my $finfo = $r\->finfo;
.Ve
.SH "API"
.IX Header "API"
\&\f(CW\*(C`APR::Finfo\*(C'\fR provides the following functions and/or methods:
.ie n .Sh """atime"""
.el .Sh "\f(CWatime\fP"
.IX Subsection "atime"
Get the time the file was last accessed:
.PP
.Vb 1
\&  $atime = $finfo\->atime;
.Ve
.ie n .IP "obj: $finfo\fR ( \f(CW""APR::Finfo object"" )" 4
.el .IP "obj: \f(CW$finfo\fR ( \f(CWAPR::Finfo object\fR )" 4
.IX Item "obj: $finfo ( APR::Finfo object )"
.PD 0
.ie n .IP "return: $atime ( integer )" 4
.el .IP "return: \f(CW$atime\fR ( integer )" 4
.IX Item "return: $atime ( integer )"
.PD
Last access time in seconds since the epoch
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
This method returns the same value as Perl's:
.PP
.Vb 1
\&  (stat $filename)[8]
.Ve
.PP
Note that this method may not be reliable on all platforms, most
notably Win32 \*(-- \s-1FAT32\s0 filesystems appear to work properly, but \s-1NTFS\s0
filesystems do not.
.ie n .Sh """csize"""
.el .Sh "\f(CWcsize\fP"
.IX Subsection "csize"
Get the storage size consumed by the file
.PP
.Vb 1
\&  $csize = $finfo\->csize;
.Ve
.ie n .IP "obj: $finfo\fR ( \f(CW""APR::Finfo object"" )" 4
.el .IP "obj: \f(CW$finfo\fR ( \f(CWAPR::Finfo object\fR )" 4
.IX Item "obj: $finfo ( APR::Finfo object )"
.PD 0
.ie n .IP "return: $csize ( integer )" 4
.el .IP "return: \f(CW$csize\fR ( integer )" 4
.IX Item "return: $csize ( integer )"
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.PP
Chances are that you don't want to use this method, since its
functionality is not supported on most platforms (in which case it
always returns 0).
.ie n .Sh """ctime"""
.el .Sh "\f(CWctime\fP"
.IX Subsection "ctime"
Get the time the file was last changed
.PP
.Vb 1
\&  $ctime = $finfo\->ctime;
.Ve
.ie n .IP "obj: $finfo\fR ( \f(CW""APR::Finfo object"" )" 4
.el .IP "obj: \f(CW$finfo\fR ( \f(CWAPR::Finfo object\fR )" 4
.IX Item "obj: $finfo ( APR::Finfo object )"
.PD 0
.ie n .IP "return: $ctime ( integer )" 4
.el .IP "return: \f(CW$ctime\fR ( integer )" 4
.IX Item "return: $ctime ( integer )"
.PD
Inode change time in seconds since the epoch
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
This method returns the same value as Perl's:
.PP
.Vb 1
\&  (stat $filename)[10]
.Ve
.PP
The ctime field is non-portable.  In particular, you cannot expect it
to be a \*(L"creation time\*(R", see \*(L"Files and Filesystems\*(R" in the
\&\fIperlport\fR manpage for details.
.ie n .Sh """device"""
.el .Sh "\f(CWdevice\fP"
.IX Subsection "device"
Get the id of the device the file is on.
.PP
.Vb 1
\&  $device = $finfo\->device;
.Ve
.ie n .IP "obj: $finfo\fR ( \f(CW""APR::Finfo object"" )" 4
.el .IP "obj: \f(CW$finfo\fR ( \f(CWAPR::Finfo object\fR )" 4
.IX Item "obj: $finfo ( APR::Finfo object )"
.PD 0
.ie n .IP "return: $device ( integer )" 4
.el .IP "return: \f(CW$device\fR ( integer )" 4
.IX Item "return: $device ( integer )"
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.PP
This method returns the same value as Perl's:
.PP
.Vb 1
\&  (stat $filename)[0]
.Ve
.PP
Note that this method is non-portable. It doesn't work on all
platforms, most notably Win32.
.ie n .Sh """filetype"""
.el .Sh "\f(CWfiletype\fP"
.IX Subsection "filetype"
Get the type of file.
.PP
.Vb 1
\&  $filetype = $finfo\->filetype;
.Ve
.ie n .IP "obj: $finfo\fR ( \f(CW""APR::Finfo object"" )" 4
.el .IP "obj: \f(CW$finfo\fR ( \f(CWAPR::Finfo object\fR )" 4
.IX Item "obj: $finfo ( APR::Finfo object )"
.PD 0
.ie n .IP "return: $filetype\fR ( \f(CW"":filetype constant"" )" 4
.el .IP "return: \f(CW$filetype\fR ( \f(CW:filetype constant\fR )" 4
.IX Item "return: $filetype ( :filetype constant )"
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.PP
For example:
.PP
.Vb 10
\&  use APR::Pool;