our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
our @EXPORT = ();
-our $VERSION = '0.14';
+our $VERSION = '0.15';
sub AUTOLOAD {
# This AUTOLOAD is used to 'autoload' constants from the constant()
sub main {
my @names = qw(getattr readlink getdir mknod mkdir unlink rmdir symlink
rename link chmod chown truncate utime open read write statfs
- flush release fsync setxattr getxattr listxattr removexattr);
+ flush release fsync setxattr getxattr listxattr removexattr
+ opendir readdir releasedir fsyncdir init destroy access
+ create ftruncate fgetattr lock utimens bmap);
my $fuse_version = fuse_version();
- if ($fuse_version >= 2.3) {
- push(@names, qw/opendir readdir releasedir fsyncdir init destroy/);
- }
- if ($fuse_version >= 2.5) {
- push(@names, qw/access create ftruncate fgetattr/);
- }
- if ($fuse_version >= 2.6) {
- push(@names, qw/lock utimens bmap/);
- }
if ($fuse_version >= 2.8) {
# junk doesn't contain a function pointer, and hopefully
# never will; it's a "dead" zone in the struct
my @subs = map {undef} @names;
my $tmp = 0;
my %mapping = map { $_ => $tmp++ } @names;
- my @otherargs = qw(debug threaded mountpoint mountopts nullpath_ok);
+ my @otherargs = qw(debug threaded mountpoint mountopts nullpath_ok utimens_as_array);
my %otherargs = (
- debug => 0,
- threaded => 0,
- mountpoint => "",
- mountopts => "",
- nullpath_ok => 0,
+ debug => 0,
+ threaded => 0,
+ mountpoint => "",
+ mountopts => "",
+ nullpath_ok => 0,
+ utimens_as_array => 0,
);
while(my $name = shift) {
my ($subref) = shift;
functions, as described in section 'FUNCTIONS YOUR FILESYSTEM MAY IMPLEMENT'.
A few special keys also exist:
-
-debug => boolean
-
=over 1
-This turns FUSE call tracing on and off. Default is 0 (which means off).
-
-=back
+=item debug => boolean
-mountpoint => string
+This turns FUSE call tracing on and off. Default is 0 (which means off).
-=over 1
+=item mountpoint => string
The point at which to mount this filesystem. There is no default, you must
specify this. An example would be '/mnt'.
-=back
-
-mountopts => string
-
-=over 1
+=item mountopts => string
This is a comma separated list of mount options to pass to the FUSE kernel
module.
mountopts => "allow_other" or
mountopts => ""
-=back
-
-threaded => boolean
-
-=over 1
+=item threaded => boolean
This turns FUSE multithreading on and off. The default is 0, meaning your FUSE
script will run in single-threaded mode. Note that single-threaded mode also
built with USE_ITHREADS, or if you have failed to use threads or
threads::shared.)
-=back
-
-nullpath_ok => boolean
-
-=over 1
+=item nullpath_ok => boolean
This flag tells Fuse to not pass paths for functions that operate on file
or directory handles. This will yield empty path parameters for functions
file/directory handles from open, opendir and create. Default is 0 (off).
Only effective on Fuse 2.8 and up; with earlier versions, this does nothing.
+=item utimens_as_array => boolean
+
+This flag causes timestamps passed via the utimens() call to be passed
+as arrays containing the time in seconds, and a second value containing
+the number of nanoseconds, instead of a floating point value. This allows
+for more precise times, as the normal floating point type used by Perl
+(double) loses accuracy starting at about tenths of a microsecond.
+
=back
=head3 Fuse::fuse_get_context
(The epoch was at 00:00 January 1, 1970 GMT.)
+If you wish to provide sub-second precision timestamps, they may be
+passed either as the fractional part of a floating-point value, or as a
+two-element array, passed as an array ref, with the first element
+containing the number of seconds since the epoch, and the second
+containing the number of nanoseconds. This provides complete time
+precision, as a floating point number starts losing precision at about
+a tenth of a microsecond. So if you really care about that sort of thing...
+
=head3 readlink
Arguments: link pathname.
The fileinfo hash reference contains flags from the Fuse open call which may be modified by the module. The only fields presently supported are:
direct_io (version 2.4 onwards)
keep_cache (version 2.4 onwards)
- nonseekable (version 2.9 onwards)
+ nonseekable (version 2.8 onwards)
Your open() method needs only check if the operation is permitted for the given flags, and return 0 for success.
Optionally a file handle may be returned, which will be passed to subsequent read, write, flush, fsync and release calls.
=head3 release
Arguments: Pathname, numeric flags passed to open, file handle
+
Returns an errno or 0 on success.
Called to indicate that there are no more references to the file. Called once
Returns an errno or 0 on success.
+Removes the named extended attribute (if present) from a file.
+
=head3 opendir
Arguments: Pathname of a directory
Returns errno or 0 on success
-Like utime(), but allows time resolution down to the nanosecond. Currently
-times are passed as "numeric" (internally I believe these are represented
-typically as "long double"), so the sub-second portion is represented as
-fractions of a second.
+Like utime(), but allows time resolution down to the nanosecond. By default,
+times are passed as "numeric" (internally these are typically represented
+as "double"), so the sub-second portion is represented as fractions of a
+second. If you want times passed as arrays instead of floating point
+values, for higher precision, you should pass the C<utimens_as_array> option
+to C<Fuse::main>.
Note that if this call is implemented, it overrides utime() ALWAYS.
=head3 ioctl
-Arguments: Pathname, (signed) ioctl command code, flags, data if ioctl op is a write, (optional) file handle
+Arguments: Pathname, ioctl command code, flags, data if ioctl op is a write, (optional) file handle
Returns errno or 0 on success, and data if ioctl op is a read
read from our end means data is going *out*, and write means data is
coming *in*. It can be slightly confusing.
-=head1 poll
+=head3 poll
Arguments: Pathname, poll handle ID (or undef if none), event mask, (optional) file handle
projects / perl-fuse.git / blobdiff