summaryrefslogtreecommitdiff
path: root/platform/linuxbsd/os_linuxbsd.cpp
blob: f4e94f1a919e088d3da2662e9e3bfbb1f723add4 (plain)
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
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
/*************************************************************************/
/*  os_linuxbsd.cpp                                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "os_linuxbsd.h"

#include "core/io/dir_access.h"
#include "main/main.h"
#include "servers/display_server.h"

#ifdef X11_ENABLED
#include "display_server_x11.h"
#endif

#ifdef HAVE_MNTENT
#include <mntent.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <dlfcn.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <unistd.h>

#ifdef FONTCONFIG_ENABLED
#include "fontconfig-so_wrap.h"
#endif

void OS_LinuxBSD::alert(const String &p_alert, const String &p_title) {
	const char *message_programs[] = { "zenity", "kdialog", "Xdialog", "xmessage" };

	String path = get_environment("PATH");
	Vector<String> path_elems = path.split(":", false);
	String program;

	for (int i = 0; i < path_elems.size(); i++) {
		for (uint64_t k = 0; k < sizeof(message_programs) / sizeof(char *); k++) {
			String tested_path = path_elems[i].path_join(message_programs[k]);

			if (FileAccess::exists(tested_path)) {
				program = tested_path;
				break;
			}
		}

		if (program.length()) {
			break;
		}
	}

	List<String> args;

	if (program.ends_with("zenity")) {
		args.push_back("--error");
		args.push_back("--width");
		args.push_back("500");
		args.push_back("--title");
		args.push_back(p_title);
		args.push_back("--text");
		args.push_back(p_alert);
	}

	if (program.ends_with("kdialog")) {
		args.push_back("--error");
		args.push_back(p_alert);
		args.push_back("--title");
		args.push_back(p_title);
	}

	if (program.ends_with("Xdialog")) {
		args.push_back("--title");
		args.push_back(p_title);
		args.push_back("--msgbox");
		args.push_back(p_alert);
		args.push_back("0");
		args.push_back("0");
	}

	if (program.ends_with("xmessage")) {
		args.push_back("-center");
		args.push_back("-title");
		args.push_back(p_title);
		args.push_back(p_alert);
	}

	if (program.length()) {
		execute(program, args);
	} else {
		print_line(p_alert);
	}
}

void OS_LinuxBSD::initialize() {
	crash_handler.initialize();

	OS_Unix::initialize_core();
}

void OS_LinuxBSD::initialize_joypads() {
#ifdef JOYDEV_ENABLED
	joypad = memnew(JoypadLinux(Input::get_singleton()));
#endif
}

String OS_LinuxBSD::get_unique_id() const {
	static String machine_id;
	if (machine_id.is_empty()) {
		Ref<FileAccess> f = FileAccess::open("/etc/machine-id", FileAccess::READ);
		if (f.is_valid()) {
			while (machine_id.is_empty() && !f->eof_reached()) {
				machine_id = f->get_line().strip_edges();
			}
		}
	}
	return machine_id;
}

String OS_LinuxBSD::get_processor_name() const {
	Ref<FileAccess> f = FileAccess::open("/proc/cpuinfo", FileAccess::READ);
	ERR_FAIL_COND_V_MSG(f.is_null(), "", String("Couldn't open `/proc/cpuinfo` to get the CPU model name. Returning an empty string."));

	while (!f->eof_reached()) {
		const String line = f->get_line();
		if (line.find("model name") != -1) {
			return line.split(":")[1].strip_edges();
		}
	}

	ERR_FAIL_V_MSG("", String("Couldn't get the CPU model name from `/proc/cpuinfo`. Returning an empty string."));
}

void OS_LinuxBSD::finalize() {
	if (main_loop) {
		memdelete(main_loop);
	}
	main_loop = nullptr;

#ifdef ALSAMIDI_ENABLED
	driver_alsamidi.close();
#endif

#ifdef JOYDEV_ENABLED
	if (joypad) {
		memdelete(joypad);
	}
#endif
}

MainLoop *OS_LinuxBSD::get_main_loop() const {
	return main_loop;
}

void OS_LinuxBSD::delete_main_loop() {
	if (main_loop) {
		memdelete(main_loop);
	}
	main_loop = nullptr;
}

void OS_LinuxBSD::set_main_loop(MainLoop *p_main_loop) {
	main_loop = p_main_loop;
}

String OS_LinuxBSD::get_name() const {
#ifdef __linux__
	return "Linux";
#elif defined(__FreeBSD__)
	return "FreeBSD";
#elif defined(__NetBSD__)
	return "NetBSD";
#elif defined(__OpenBSD__)
	return "OpenBSD";
#else
	return "BSD";
#endif
}

String OS_LinuxBSD::get_systemd_os_release_info_value(const String &key) const {
	static String info;
	if (info.is_empty()) {
		Ref<FileAccess> f = FileAccess::open("/etc/os-release", FileAccess::READ);
		if (f.is_valid()) {
			while (!f->eof_reached()) {
				const String line = f->get_line();
				if (line.find(key) != -1) {
					return line.split("=")[1].strip_edges();
				}
			}
		}
	}
	return info;
}

String OS_LinuxBSD::get_distribution_name() const {
	static String systemd_name = get_systemd_os_release_info_value("NAME"); // returns a value for systemd users, otherwise an empty string.
	if (!systemd_name.is_empty()) {
		return systemd_name;
	}
	struct utsname uts; // returns a decent value for BSD family.
	uname(&uts);
	return uts.sysname;
}

String OS_LinuxBSD::get_version() const {
	static String systemd_version = get_systemd_os_release_info_value("VERSION"); // returns a value for systemd users, otherwise an empty string.
	if (!systemd_version.is_empty()) {
		return systemd_version;
	}
	struct utsname uts; // returns a decent value for BSD family.
	uname(&uts);
	return uts.version;
}

Error OS_LinuxBSD::shell_open(String p_uri) {
	Error ok;
	int err_code;
	List<String> args;
	args.push_back(p_uri);

	// Agnostic
	ok = execute("xdg-open", args, nullptr, &err_code);
	if (ok == OK && !err_code) {
		return OK;
	} else if (err_code == 2) {
		return ERR_FILE_NOT_FOUND;
	}
	// GNOME
	args.push_front("open"); // The command is `gio open`, so we need to add it to args
	ok = execute("gio", args, nullptr, &err_code);
	if (ok == OK && !err_code) {
		return OK;
	} else if (err_code == 2) {
		return ERR_FILE_NOT_FOUND;
	}
	args.pop_front();
	ok = execute("gvfs-open", args, nullptr, &err_code);
	if (ok == OK && !err_code) {
		return OK;
	} else if (err_code == 2) {
		return ERR_FILE_NOT_FOUND;
	}
	// KDE
	ok = execute("kde-open5", args, nullptr, &err_code);
	if (ok == OK && !err_code) {
		return OK;
	}
	ok = execute("kde-open", args, nullptr, &err_code);
	return !err_code ? ok : FAILED;
}

bool OS_LinuxBSD::_check_internal_feature_support(const String &p_feature) {
	return p_feature == "pc";
}

uint64_t OS_LinuxBSD::get_embedded_pck_offset() const {
	Ref<FileAccess> f = FileAccess::open(get_executable_path(), FileAccess::READ);
	if (f.is_null()) {
		return 0;
	}

	// Read and check ELF magic number.
	{
		uint32_t magic = f->get_32();
		if (magic != 0x464c457f) { // 0x7F + "ELF"
			return 0;
		}
	}

	// Read program architecture bits from class field.
	int bits = f->get_8() * 32;

	// Get info about the section header table.
	int64_t section_table_pos;
	int64_t section_header_size;
	if (bits == 32) {
		section_header_size = 40;
		f->seek(0x20);
		section_table_pos = f->get_32();
		f->seek(0x30);
	} else { // 64
		section_header_size = 64;
		f->seek(0x28);
		section_table_pos = f->get_64();
		f->seek(0x3c);
	}
	int num_sections = f->get_16();
	int string_section_idx = f->get_16();

	// Load the strings table.
	uint8_t *strings;
	{
		// Jump to the strings section header.
		f->seek(section_table_pos + string_section_idx * section_header_size);

		// Read strings data size and offset.
		int64_t string_data_pos;
		int64_t string_data_size;
		if (bits == 32) {
			f->seek(f->get_position() + 0x10);
			string_data_pos = f->get_32();
			string_data_size = f->get_32();
		} else { // 64
			f->seek(f->get_position() + 0x18);
			string_data_pos = f->get_64();
			string_data_size = f->get_64();
		}

		// Read strings data.
		f->seek(string_data_pos);
		strings = (uint8_t *)memalloc(string_data_size);
		if (!strings) {
			return 0;
		}
		f->get_buffer(strings, string_data_size);
	}

	// Search for the "pck" section.
	int64_t off = 0;
	for (int i = 0; i < num_sections; ++i) {
		int64_t section_header_pos = section_table_pos + i * section_header_size;
		f->seek(section_header_pos);

		uint32_t name_offset = f->get_32();
		if (strcmp((char *)strings + name_offset, "pck") == 0) {
			if (bits == 32) {
				f->seek(section_header_pos + 0x10);
				off = f->get_32();
			} else { // 64
				f->seek(section_header_pos + 0x18);
				off = f->get_64();
			}
			break;
		}
	}
	memfree(strings);

	return off;
}

Vector<String> OS_LinuxBSD::get_system_fonts() const {
#ifdef FONTCONFIG_ENABLED
	if (!font_config_initialized) {
		ERR_FAIL_V_MSG(Vector<String>(), "Unable to load fontconfig, system font support is disabled.");
	}
	HashSet<String> font_names;
	Vector<String> ret;

	FcConfig *config = FcInitLoadConfigAndFonts();
	ERR_FAIL_COND_V(!config, ret);

	FcObjectSet *object_set = FcObjectSetBuild(FC_FAMILY, nullptr);
	ERR_FAIL_COND_V(!object_set, ret);

	static const char *allowed_formats[] = { "TrueType", "CFF" };
	for (size_t i = 0; i < sizeof(allowed_formats) / sizeof(const char *); i++) {
		FcPattern *pattern = FcPatternCreate();
		ERR_CONTINUE(!pattern);

		FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
		FcPatternAddString(pattern, FC_FONTFORMAT, reinterpret_cast<const FcChar8 *>(allowed_formats[i]));

		FcFontSet *font_set = FcFontList(config, pattern, object_set);
		if (font_set) {
			for (int j = 0; j < font_set->nfont; j++) {
				char *family_name = nullptr;
				if (FcPatternGetString(font_set->fonts[j], FC_FAMILY, 0, reinterpret_cast<FcChar8 **>(&family_name)) == FcResultMatch) {
					if (family_name) {
						font_names.insert(String::utf8(family_name));
					}
				}
			}
			FcFontSetDestroy(font_set);
		}
		FcPatternDestroy(pattern);
	}
	FcObjectSetDestroy(object_set);
	FcConfigDestroy(config);

	for (const String &E : font_names) {
		ret.push_back(E);
	}
	return ret;
#else
	ERR_FAIL_V_MSG(Vector<String>(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}

String OS_LinuxBSD::get_system_font_path(const String &p_font_name, bool p_bold, bool p_italic) const {
#ifdef FONTCONFIG_ENABLED
	if (!font_config_initialized) {
		ERR_FAIL_V_MSG(String(), "Unable to load fontconfig, system font support is disabled.");
	}

	String ret;

	FcConfig *config = FcInitLoadConfigAndFonts();
	ERR_FAIL_COND_V(!config, ret);

	FcObjectSet *object_set = FcObjectSetBuild(FC_FAMILY, FC_FILE, nullptr);
	ERR_FAIL_COND_V(!object_set, ret);

	FcPattern *pattern = FcPatternCreate();
	if (pattern) {
		FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
		FcPatternAddString(pattern, FC_FAMILY, reinterpret_cast<const FcChar8 *>(p_font_name.utf8().get_data()));
		FcPatternAddInteger(pattern, FC_WEIGHT, p_bold ? FC_WEIGHT_BOLD : FC_WEIGHT_NORMAL);
		FcPatternAddInteger(pattern, FC_SLANT, p_italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);

		FcConfigSubstitute(0, pattern, FcMatchPattern);
		FcDefaultSubstitute(pattern);

		FcResult result;
		FcPattern *match = FcFontMatch(0, pattern, &result);
		if (match) {
			char *file_name = nullptr;
			if (FcPatternGetString(match, FC_FILE, 0, reinterpret_cast<FcChar8 **>(&file_name)) == FcResultMatch) {
				if (file_name) {
					ret = String::utf8(file_name);
				}
			}

			FcPatternDestroy(match);
		}
		FcPatternDestroy(pattern);
	}
	FcObjectSetDestroy(object_set);
	FcConfigDestroy(config);

	return ret;
#else
	ERR_FAIL_V_MSG(String(), "Godot was compiled without fontconfig, system font support is disabled.");
#endif
}

String OS_LinuxBSD::get_config_path() const {
	if (has_environment("XDG_CONFIG_HOME")) {
		if (get_environment("XDG_CONFIG_HOME").is_absolute_path()) {
			return get_environment("XDG_CONFIG_HOME");
		} else {
			WARN_PRINT_ONCE("`XDG_CONFIG_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.config` or `.` per the XDG Base Directory specification.");
			return has_environment("HOME") ? get_environment("HOME").path_join(".config") : ".";
		}
	} else if (has_environment("HOME")) {
		return get_environment("HOME").path_join(".config");
	} else {
		return ".";
	}
}

String OS_LinuxBSD::get_data_path() const {
	if (has_environment("XDG_DATA_HOME")) {
		if (get_environment("XDG_DATA_HOME").is_absolute_path()) {
			return get_environment("XDG_DATA_HOME");
		} else {
			WARN_PRINT_ONCE("`XDG_DATA_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.local/share` or `get_config_path()` per the XDG Base Directory specification.");
			return has_environment("HOME") ? get_environment("HOME").path_join(".local/share") : get_config_path();
		}
	} else if (has_environment("HOME")) {
		return get_environment("HOME").path_join(".local/share");
	} else {
		return get_config_path();
	}
}

String OS_LinuxBSD::get_cache_path() const {
	if (has_environment("XDG_CACHE_HOME")) {
		if (get_environment("XDG_CACHE_HOME").is_absolute_path()) {
			return get_environment("XDG_CACHE_HOME");
		} else {
			WARN_PRINT_ONCE("`XDG_CACHE_HOME` is a relative path. Ignoring its value and falling back to `$HOME/.cache` or `get_config_path()` per the XDG Base Directory specification.");
			return has_environment("HOME") ? get_environment("HOME").path_join(".cache") : get_config_path();
		}
	} else if (has_environment("HOME")) {
		return get_environment("HOME").path_join(".cache");
	} else {
		return get_config_path();
	}
}

String OS_LinuxBSD::get_system_dir(SystemDir p_dir, bool p_shared_storage) const {
	String xdgparam;

	switch (p_dir) {
		case SYSTEM_DIR_DESKTOP: {
			xdgparam = "DESKTOP";
		} break;
		case SYSTEM_DIR_DCIM: {
			xdgparam = "PICTURES";

		} break;
		case SYSTEM_DIR_DOCUMENTS: {
			xdgparam = "DOCUMENTS";

		} break;
		case SYSTEM_DIR_DOWNLOADS: {
			xdgparam = "DOWNLOAD";

		} break;
		case SYSTEM_DIR_MOVIES: {
			xdgparam = "VIDEOS";

		} break;
		case SYSTEM_DIR_MUSIC: {
			xdgparam = "MUSIC";

		} break;
		case SYSTEM_DIR_PICTURES: {
			xdgparam = "PICTURES";

		} break;
		case SYSTEM_DIR_RINGTONES: {
			xdgparam = "MUSIC";

		} break;
	}

	String pipe;
	List<String> arg;
	arg.push_back(xdgparam);
	Error err = const_cast<OS_LinuxBSD *>(this)->execute("xdg-user-dir", arg, &pipe);
	if (err != OK) {
		return ".";
	}
	return pipe.strip_edges();
}

void OS_LinuxBSD::run() {
	if (!main_loop) {
		return;
	}

	main_loop->initialize();

	//uint64_t last_ticks=get_ticks_usec();

	//int frames=0;
	//uint64_t frame=0;

	while (true) {
		DisplayServer::get_singleton()->process_events(); // get rid of pending events
#ifdef JOYDEV_ENABLED
		joypad->process_joypads();
#endif
		if (Main::iteration()) {
			break;
		}
	}

	main_loop->finalize();
}

void OS_LinuxBSD::disable_crash_handler() {
	crash_handler.disable();
}

bool OS_LinuxBSD::is_disable_crash_handler() const {
	return crash_handler.is_disabled();
}

static String get_mountpoint(const String &p_path) {
	struct stat s;
	if (stat(p_path.utf8().get_data(), &s)) {
		return "";
	}

#ifdef HAVE_MNTENT
	dev_t dev = s.st_dev;
	FILE *fd = setmntent("/proc/mounts", "r");
	if (!fd) {
		return "";
	}

	struct mntent mnt;
	char buf[1024];
	size_t buflen = 1024;
	while (getmntent_r(fd, &mnt, buf, buflen)) {
		if (!stat(mnt.mnt_dir, &s) && s.st_dev == dev) {
			endmntent(fd);
			return String(mnt.mnt_dir);
		}
	}

	endmntent(fd);
#endif
	return "";
}

Error OS_LinuxBSD::move_to_trash(const String &p_path) {
	String path = p_path.rstrip("/"); // Strip trailing slash when path points to a directory

	int err_code;
	List<String> args;
	args.push_back(path);
	args.push_front("trash"); // The command is `gio trash <file_name>` so we need to add it to args.
	Error result = execute("gio", args, nullptr, &err_code); // For GNOME based machines.
	if (result == OK && !err_code) {
		return OK;
	} else if (err_code == 2) {
		return ERR_FILE_NOT_FOUND;
	}

	args.pop_front();
	args.push_front("move");
	args.push_back("trash:/"); // The command is `kioclient5 move <file_name> trash:/`.
	result = execute("kioclient5", args, nullptr, &err_code); // For KDE based machines.
	if (result == OK && !err_code) {
		return OK;
	} else if (err_code == 2) {
		return ERR_FILE_NOT_FOUND;
	}

	args.pop_front();
	args.pop_back();
	result = execute("gvfs-trash", args, nullptr, &err_code); // For older Linux machines.
	if (result == OK && !err_code) {
		return OK;
	} else if (err_code == 2) {
		return ERR_FILE_NOT_FOUND;
	}

	// If the commands `kioclient5`, `gio` or `gvfs-trash` don't exist on the system we do it manually.
	String trash_path = "";
	String mnt = get_mountpoint(path);

	// If there is a directory "[Mountpoint]/.Trash-[UID], use it as the trash can.
	if (!mnt.is_empty()) {
		String mountpoint_trash_path(mnt + "/.Trash-" + itos(getuid()));
		struct stat s;
		if (!stat(mountpoint_trash_path.utf8().get_data(), &s)) {
			trash_path = mountpoint_trash_path;
		}
	}

	// Otherwise, if ${XDG_DATA_HOME} is defined, use "${XDG_DATA_HOME}/Trash" as the trash can.
	if (trash_path.is_empty()) {
		char *dhome = getenv("XDG_DATA_HOME");
		if (dhome) {
			trash_path = String::utf8(dhome) + "/Trash";
		}
	}

	// Otherwise, if ${HOME} is defined, use "${HOME}/.local/share/Trash" as the trash can.
	if (trash_path.is_empty()) {
		char *home = getenv("HOME");
		if (home) {
			trash_path = String::utf8(home) + "/.local/share/Trash";
		}
	}

	// Issue an error if none of the previous locations is appropriate for the trash can.
	ERR_FAIL_COND_V_MSG(trash_path.is_empty(), FAILED, "Could not determine the trash can location");

	// Create needed directories for decided trash can location.
	{
		Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		Error err = dir_access->make_dir_recursive(trash_path);

		// Issue an error if trash can is not created properly.
		ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "\"");
		err = dir_access->make_dir_recursive(trash_path + "/files");
		ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "/files\"");
		err = dir_access->make_dir_recursive(trash_path + "/info");
		ERR_FAIL_COND_V_MSG(err != OK, err, "Could not create the trash path \"" + trash_path + "/info\"");
	}

	// The trash can is successfully created, now we check that we don't exceed our file name length limit.
	// If the file name is too long trim it so we can add the identifying number and ".trashinfo".
	// Assumes that the file name length limit is 255 characters.
	String file_name = path.get_file();
	if (file_name.length() > 240) {
		file_name = file_name.substr(0, file_name.length() - 15);
	}

	String dest_path = trash_path + "/files/" + file_name;
	struct stat buff;
	int id_number = 0;
	String fn = file_name;

	// Checks if a resource with the same name already exist in the trash can,
	// if there is, add an identifying number to our resource's name.
	while (stat(dest_path.utf8().get_data(), &buff) == 0) {
		id_number++;

		// Added a limit to check for identically named files already on the trash can
		// if there are too many it could make the editor unresponsive.
		ERR_FAIL_COND_V_MSG(id_number > 99, FAILED, "Too many identically named resources already in the trash can.");
		fn = file_name + "." + itos(id_number);
		dest_path = trash_path + "/files/" + fn;
	}
	file_name = fn;

	String renamed_path = path.get_base_dir() + "/" + file_name;

	// Generates the .trashinfo file
	OS::DateTime dt = OS::get_singleton()->get_datetime(false);
	String timestamp = vformat("%04d-%02d-%02dT%02d:%02d:", dt.year, (int)dt.month, dt.day, dt.hour, dt.minute);
	timestamp = vformat("%s%02d", timestamp, dt.second); // vformat only supports up to 6 arguments.
	String trash_info = "[Trash Info]\nPath=" + path.uri_encode() + "\nDeletionDate=" + timestamp + "\n";
	{
		Error err;
		{
			Ref<FileAccess> file = FileAccess::open(trash_path + "/info/" + file_name + ".trashinfo", FileAccess::WRITE, &err);
			ERR_FAIL_COND_V_MSG(err != OK, err, "Can't create trashinfo file: \"" + trash_path + "/info/" + file_name + ".trashinfo\"");
			file->store_string(trash_info);
		}

		// Rename our resource before moving it to the trash can.
		Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		err = dir_access->rename(path, renamed_path);
		ERR_FAIL_COND_V_MSG(err != OK, err, "Can't rename file \"" + path + "\" to \"" + renamed_path + "\"");
	}

	// Move the given resource to the trash can.
	// Do not use DirAccess:rename() because it can't move files across multiple mountpoints.
	List<String> mv_args;
	mv_args.push_back(renamed_path);
	mv_args.push_back(trash_path + "/files");
	{
		int retval;
		Error err = execute("mv", mv_args, nullptr, &retval);

		// Issue an error if "mv" failed to move the given resource to the trash can.
		if (err != OK || retval != 0) {
			ERR_PRINT("move_to_trash: Could not move the resource \"" + path + "\" to the trash can \"" + trash_path + "/files\"");
			Ref<DirAccess> dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
			err = dir_access->rename(renamed_path, path);
			ERR_FAIL_COND_V_MSG(err != OK, err, "Could not rename \"" + renamed_path + "\" back to its original name: \"" + path + "\"");
			return FAILED;
		}
	}
	return OK;
}

OS_LinuxBSD::OS_LinuxBSD() {
	main_loop = nullptr;

#ifdef PULSEAUDIO_ENABLED
	AudioDriverManager::add_driver(&driver_pulseaudio);
#endif

#ifdef ALSA_ENABLED
	AudioDriverManager::add_driver(&driver_alsa);
#endif

#ifdef X11_ENABLED
	DisplayServerX11::register_x11_driver();
#endif

#ifdef FONTCONFIG_ENABLED
#ifdef DEBUG_ENABLED
	int dylibloader_verbose = 1;
#else
	int dylibloader_verbose = 0;
#endif
	font_config_initialized = (initialize_fontconfig(dylibloader_verbose) == 0);
#endif // FONTCONFIG_ENABLED
}