/usr/lib/slic3r-prusa/Slic3r.pm is in slic3r-prusa 1.31.4-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 | # This package loads all the non-GUI Slic3r perl packages.
# In addition, it implements utility functions for file handling and threading.
package Slic3r;
# Copyright holder: Alessandro Ranellucci
# This application is licensed under the GNU Affero General Public License, version 3
use strict;
use warnings;
require v5.10;
our $VERSION = VERSION();
our $FORK_NAME = FORK_NAME();
our $debug = 0;
sub debugf {
printf @_ if $debug;
}
# load threads before Moo as required by it
our $have_threads;
BEGIN {
# Test, whether the perl was compiled with ithreads support and ithreads actually work.
use Config;
$have_threads = $Config{useithreads} && eval "use threads; use threads::shared; use Thread::Queue; 1";
warn "threads.pm >= 1.96 is required, please update\n" if $have_threads && $threads::VERSION < 1.96;
### temporarily disable threads if using the broken Moo version
use Moo;
$have_threads = 0 if $Moo::VERSION == 1.003000;
# Disable multi threading completely by an environment value.
# This is useful for debugging as the Perl debugger does not work
# in multi-threaded context at all.
# A good interactive perl debugger is the ActiveState Komodo IDE
# or the EPIC http://www.epic-ide.org/
$have_threads = 0 if (defined($ENV{'SLIC3R_SINGLETHREADED'}) && $ENV{'SLIC3R_SINGLETHREADED'} == 1);
print "Threading disabled\n" if !$have_threads;
$debug = 1 if (defined($ENV{'SLIC3R_DEBUGOUT'}) && $ENV{'SLIC3R_DEBUGOUT'} == 1);
print "Debugging output enabled\n" if $debug;
}
warn "Running Slic3r under Perl 5.16 is neither supported nor recommended\n"
if $^V == v5.16;
use FindBin;
# Path to the images.
our $var = sub { "/usr/share/slic3r-prusa/" . $_[0]; };
use Moo 1.003001;
use Slic3r::XS; # import all symbols (constants etc.) before they get parsed
use Slic3r::Config;
use Slic3r::ExPolygon;
use Slic3r::ExtrusionLoop;
use Slic3r::ExtrusionPath;
use Slic3r::Flow;
use Slic3r::Format::AMF;
use Slic3r::Format::OBJ;
use Slic3r::Format::STL;
use Slic3r::GCode::ArcFitting;
use Slic3r::GCode::CoolingBuffer;
use Slic3r::GCode::MotionPlanner;
use Slic3r::GCode::PressureRegulator;
use Slic3r::GCode::Reader;
use Slic3r::GCode::SpiralVase;
use Slic3r::Geometry qw(PI);
use Slic3r::Geometry::Clipper;
use Slic3r::Layer;
use Slic3r::Line;
use Slic3r::Model;
use Slic3r::Point;
use Slic3r::Polygon;
use Slic3r::Polyline;
use Slic3r::Print;
use Slic3r::Print::GCode;
use Slic3r::Print::Object;
use Slic3r::Print::Simple;
use Slic3r::Print::SupportMaterial;
use Slic3r::Surface;
our $build = eval "use Slic3r::Build; 1";
use Thread::Semaphore;
use Encode::Locale 1.03;
use Encode;
use Unicode::Normalize;
# Scaling between the float and integer coordinates.
# Floats are in mm.
use constant SCALING_FACTOR => 0.000001;
use constant LOOP_CLIPPING_LENGTH_OVER_NOZZLE_DIAMETER => 0.15;
# Following constants are used by the infill algorithms and integration tests.
# Resolution to simplify perimeters to. These constants are now used in C++ code only. Better to publish them to Perl from the C++ code.
# use constant RESOLUTION => 0.0125;
# use constant SCALED_RESOLUTION => RESOLUTION / SCALING_FACTOR;
use constant INFILL_OVERLAP_OVER_SPACING => 0.3;
# Keep track of threads we created. Each thread keeps its own list of threads it spwaned.
my @my_threads = ();
my @threads : shared = ();
my $pause_sema = Thread::Semaphore->new;
my $parallel_sema;
my $paused = 0;
sub spawn_thread {
my ($cb) = @_;
my $parent_tid = threads->tid;
lock @threads;
@_ = ();
my $thread = threads->create(sub {
@my_threads = ();
Slic3r::debugf "Starting thread %d (parent: %d)...\n", threads->tid, $parent_tid;
local $SIG{'KILL'} = sub {
Slic3r::debugf "Exiting thread %d...\n", threads->tid;
$parallel_sema->up if $parallel_sema;
kill_all_threads();
Slic3r::thread_cleanup();
threads->exit();
};
local $SIG{'STOP'} = sub {
$pause_sema->down;
$pause_sema->up;
};
$cb->();
});
push @my_threads, $thread->tid;
push @threads, $thread->tid;
return $thread;
}
# If the threading is enabled, spawn a set of threads.
# Otherwise run the task on the current thread.
# Used for
# Slic3r::Print::Object->layers->make_perimeters : This is a pure C++ function.
# Slic3r::Print::Object->layers->make_fill : This is a pure C++ function.
# Slic3r::Print::SupportMaterial::generate_toolpaths
sub parallelize {
my %params = @_;
lock @threads;
if (!$params{disable} && $Slic3r::have_threads && $params{threads} > 1) {
my @items = (ref $params{items} eq 'CODE') ? $params{items}->() : @{$params{items}};
my $q = Thread::Queue->new;
$q->enqueue(@items, (map undef, 1..$params{threads}));
$parallel_sema = Thread::Semaphore->new(-$params{threads});
$parallel_sema->up;
my $thread_cb = sub {
# execute thread callback
$params{thread_cb}->($q);
# signal the parent thread that we're done
$parallel_sema->up;
# cleanup before terminating thread
Slic3r::thread_cleanup();
# This explicit exit avoids an untrappable
# "Attempt to free unreferenced scalar" error
# triggered on Ubuntu 12.04 32-bit when we're running
# from the Wx plater and
# we're reusing the same plater object more than once.
# The downside to using this exit is that we can't return
# any value to the main thread but we're not doing that
# anymore anyway.
threads->exit;
};
@_ = ();
my @my_threads = map spawn_thread($thread_cb), 1..$params{threads};
# We use a semaphore instead of $th->join because joined threads are
# not listed by threads->list or threads->object anymore, thus can't
# be signalled.
$parallel_sema->down;
$_->detach for @my_threads;
} else {
$params{no_threads_cb}->();
}
}
# call this at the very end of each thread (except the main one)
# so that it does not try to free existing objects.
# at that stage, existing objects are only those that we
# inherited at the thread creation (thus shared) and those
# that we are returning: destruction will be handled by the
# main thread in both cases.
# reminder: do not destroy inherited objects in other threads,
# as the main thread will still try to destroy them when they
# go out of scope; in other words, if you're undef()'ing an
# object in a thread, make sure the main thread still holds a
# reference so that it won't be destroyed in thread.
sub thread_cleanup {
return if !$Slic3r::have_threads;
if (threads->tid == 0) {
warn "Calling thread_cleanup() from main thread\n";
return;
}
# prevent destruction of shared objects
no warnings 'redefine';
*Slic3r::BridgeDetector::DESTROY = sub {};
*Slic3r::Config::DESTROY = sub {};
*Slic3r::Config::Full::DESTROY = sub {};
*Slic3r::Config::GCode::DESTROY = sub {};
*Slic3r::Config::Print::DESTROY = sub {};
*Slic3r::Config::PrintObject::DESTROY = sub {};
*Slic3r::Config::PrintRegion::DESTROY = sub {};
*Slic3r::Config::Static::DESTROY = sub {};
*Slic3r::ExPolygon::DESTROY = sub {};
*Slic3r::ExPolygon::Collection::DESTROY = sub {};
*Slic3r::Extruder::DESTROY = sub {};
*Slic3r::ExtrusionLoop::DESTROY = sub {};
*Slic3r::ExtrusionPath::DESTROY = sub {};
*Slic3r::ExtrusionPath::Collection::DESTROY = sub {};
*Slic3r::ExtrusionSimulator::DESTROY = sub {};
*Slic3r::Flow::DESTROY = sub {};
# Fillers are only being allocated in worker threads, which are not going to be forked.
# Therefore the Filler instances shall be released at the end of the thread.
# *Slic3r::Filler::DESTROY = sub {};
*Slic3r::GCode::DESTROY = sub {};
*Slic3r::GCode::AvoidCrossingPerimeters::DESTROY = sub {};
*Slic3r::GCode::OozePrevention::DESTROY = sub {};
*Slic3r::GCode::PlaceholderParser::DESTROY = sub {};
*Slic3r::GCode::Sender::DESTROY = sub {};
*Slic3r::GCode::Wipe::DESTROY = sub {};
*Slic3r::GCode::Writer::DESTROY = sub {};
*Slic3r::Geometry::BoundingBox::DESTROY = sub {};
*Slic3r::Geometry::BoundingBoxf::DESTROY = sub {};
*Slic3r::Geometry::BoundingBoxf3::DESTROY = sub {};
*Slic3r::Layer::PerimeterGenerator::DESTROY = sub {};
*Slic3r::Line::DESTROY = sub {};
*Slic3r::Linef3::DESTROY = sub {};
*Slic3r::Model::DESTROY = sub {};
*Slic3r::Model::Object::DESTROY = sub {};
*Slic3r::Point::DESTROY = sub {};
*Slic3r::Pointf::DESTROY = sub {};
*Slic3r::Pointf3::DESTROY = sub {};
*Slic3r::Polygon::DESTROY = sub {};
*Slic3r::Polyline::DESTROY = sub {};
*Slic3r::Polyline::Collection::DESTROY = sub {};
*Slic3r::Print::DESTROY = sub {};
*Slic3r::Print::Object::DESTROY = sub {};
*Slic3r::Print::Region::DESTROY = sub {};
*Slic3r::Surface::DESTROY = sub {};
*Slic3r::Surface::Collection::DESTROY = sub {};
*Slic3r::Print::SupportMaterial2::DESTROY = sub {};
*Slic3r::TriangleMesh::DESTROY = sub {};
return undef; # this prevents a "Scalars leaked" warning
}
sub get_running_threads {
return grep defined($_), map threads->object($_), @_;
}
sub kill_all_threads {
# if we're the main thread, we send SIGKILL to all the running threads
if (threads->tid == 0) {
lock @threads;
foreach my $thread (get_running_threads(@threads)) {
Slic3r::debugf "Thread %d killing %d...\n", threads->tid, $thread->tid;
$thread->kill('KILL');
}
# unlock semaphore before we block on wait
# otherwise we'd get a deadlock if threads were paused
resume_all_threads();
}
# in any thread we wait for our children
foreach my $thread (get_running_threads(@my_threads)) {
Slic3r::debugf " Thread %d waiting for %d...\n", threads->tid, $thread->tid;
$thread->join; # block until threads are killed
Slic3r::debugf " Thread %d finished waiting for %d...\n", threads->tid, $thread->tid;
}
@my_threads = ();
}
sub pause_all_threads {
return if $paused;
lock @threads;
$paused = 1;
$pause_sema->down;
$_->kill('STOP') for get_running_threads(@threads);
}
sub resume_all_threads {
return unless $paused;
lock @threads;
$paused = 0;
$pause_sema->up;
}
# Convert a Unicode path to a file system locale.
# The encoding is (from Encode::Locale POD):
# Alias | Windows | Mac OS X | POSIX
# locale_fs | ANSI | UTF-8 | nl_langinfo
# where nl_langinfo is en-US.UTF-8 on a modern Linux as well.
# So this conversion seems to make the most sense on Windows.
sub encode_path {
my ($path) = @_;
$path = Unicode::Normalize::NFC($path);
$path = Encode::encode(locale_fs => $path);
return $path;
}
# Convert a path coded by a file system locale to Unicode.
sub decode_path {
my ($path) = @_;
$path = Encode::decode(locale_fs => $path)
unless utf8::is_utf8($path);
# The filesystem might force a normalization form (like HFS+ does) so
# if we rely on the filename being comparable after the open() + readdir()
# roundtrip (like when creating and then selecting a preset), we need to
# restore our normalization form.
$path = Unicode::Normalize::NFC($path);
return $path;
}
# Open a file by converting $filename to local file system locales.
sub open {
my ($fh, $mode, $filename) = @_;
return CORE::open $$fh, $mode, encode_path($filename);
}
# this package declaration prevents an ugly fatal warning to be emitted when
# spawning a new thread
package GLUquadricObjPtr;
1;
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