85 |
my ($tmp) = 0; |
my ($tmp) = 0; |
86 |
my (%mapping) = map { $_ => $tmp++ } (@names); |
my (%mapping) = map { $_ => $tmp++ } (@names); |
87 |
my (%optmap) = map { $_ => 1 } (@validOpts); |
my (%optmap) = map { $_ => 1 } (@validOpts); |
88 |
my (%otherargs) = (debug=>0, mountpoint=>"", mountopts=>""); |
my (%otherargs) = (debug=>0, threaded=>0, mountpoint=>"", mountopts=>""); |
89 |
while(my $name = shift) { |
while(my $name = shift) { |
90 |
my ($subref) = shift; |
my ($subref) = shift; |
91 |
if(exists($otherargs{$name})) { |
if(exists($otherargs{$name})) { |
92 |
$otherargs{$name} = $subref; |
$otherargs{$name} = $subref; |
93 |
} else { |
} else { |
94 |
croak "There is no function $name" unless exists($mapping{$name}); |
croak "There is no function $name" unless exists($mapping{$name}); |
95 |
croak "Usage: Fuse::main(getattr => &my_getattr, ...)" unless $subref; |
croak "Usage: Fuse::main(getattr => \"main::my_getattr\", ...)" unless $subref; |
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croak "Usage: Fuse::main(getattr => &my_getattr, ...)" unless ref($subref); |
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croak "Usage: Fuse::main(getattr => &my_getattr, ...)" unless ref($subref) eq "CODE"; |
|
96 |
$subs[$mapping{$name}] = $subref; |
$subs[$mapping{$name}] = $subref; |
97 |
} |
} |
98 |
} |
} |
101 |
croak "Use of an invalid mountopt argument"; |
croak "Use of an invalid mountopt argument"; |
102 |
} |
} |
103 |
} |
} |
104 |
perl_fuse_main($otherargs{debug},$otherargs{mountpoint},$otherargs{mountopts},@subs); |
perl_fuse_main($otherargs{debug},$otherargs{threaded},$otherargs{mountpoint},$otherargs{mountopts},@subs); |
105 |
} |
} |
106 |
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|
107 |
# Autoload methods go after =cut, and are processed by the autosplit program. |
# Autoload methods go after =cut, and are processed by the autosplit program. |
118 |
use Fuse; |
use Fuse; |
119 |
my ($mountpoint) = ""; |
my ($mountpoint) = ""; |
120 |
$mountpoint = shift(@ARGV) if @ARGV; |
$mountpoint = shift(@ARGV) if @ARGV; |
121 |
Fuse::main(mountpoint=>$mountpoint, getattr=>\&my_getattr, getdir=>\&my_getdir, ...); |
Fuse::main(mountpoint=>$mountpoint, getattr=>"main::my_getattr", getdir=>"main::my_getdir", ...); |
122 |
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|
123 |
=head1 DESCRIPTION |
=head1 DESCRIPTION |
124 |
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127 |
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|
128 |
FUSE expects you to implement callbacks for the various functions. |
FUSE expects you to implement callbacks for the various functions. |
129 |
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NOTE: I have only tested the things implemented in example.pl! |
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It should work, but some things may not. |
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|
130 |
In the following definitions, "errno" can be 0 (for a success), |
In the following definitions, "errno" can be 0 (for a success), |
131 |
-EINVAL, -ENOENT, -EONFIRE, any integer less than 1 really. |
-EINVAL, -ENOENT, -EONFIRE, any integer less than 1 really. |
132 |
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192 |
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|
193 |
=back |
=back |
194 |
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195 |
unthreaded => boolean |
threaded => boolean |
196 |
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|
197 |
=over 1 |
=over 1 |
198 |
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|
199 |
This turns FUSE multithreading off and on. NOTE: This perlmodule does not |
This turns FUSE multithreading on and off. The default is 0, meaning your FUSE |
200 |
currently work properly in multithreaded mode! The author is unfortunately |
script will run in single-threaded mode. Note that single-threaded mode also |
201 |
not familiar enough with perl-threads internals, and according to the |
means that you will not have to worry about reentrancy, though you will have to |
202 |
documentation available at time of writing (2002-03-08), those internals are |
worry about recursive lookups. In single-threaded mode, FUSE holds a global |
203 |
subject to changing anyway. Note that singlethreaded mode also means that |
lock on your filesystem, and will wait for one callback to return before |
204 |
you will not have to worry about reentrancy, though you will have to worry |
calling another. This can lead to deadlocks, if your script makes any attempt |
205 |
about recursive lookups (since the kernel holds a global lock on your |
to access files or directories in the filesystem it is providing. (This |
206 |
filesystem and blocks waiting for one callback to complete before calling |
includes calling stat() on the mount-point, statfs() calls from the 'df' |
207 |
another). |
command, and so on and so forth.) It is worth paying a little attention and |
208 |
|
being careful about this. |
209 |
I hope to add full multithreading functionality later, but for now, I |
|
210 |
recommend you leave this option at the default, 1 (which means |
Enabling multithreading will cause FUSE to make multiple simultaneous calls |
211 |
unthreaded, no threads will be used and no reentrancy is needed). |
into the various callback functions of your perl script. If you enable |
212 |
|
threaded mode, you can enjoy all the parallel execution and interactive |
213 |
|
response benefits of threads, and you get to enjoy all the benefits of race |
214 |
|
conditions and locking bugs, too. Please also ensure any other perl modules |
215 |
|
you're using are also thread-safe. |
216 |
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|
217 |
|
(If enabled, this option will cause a warning if your perl interpreter was not |
218 |
|
built with USE_ITHREADS.) |
219 |
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|
220 |
=back |
=back |
221 |
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|