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
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
|
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
#ifndef SRC_ENV_H_
#define SRC_ENV_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "aliased_buffer.h"
#if HAVE_INSPECTOR
#include "inspector_agent.h"
#include "inspector_profiler.h"
#endif
#include "handle_wrap.h"
#include "node.h"
#include "node_binding.h"
#include "node_http2_state.h"
#include "node_main_instance.h"
#include "node_options.h"
#include "req_wrap.h"
#include "util.h"
#include "uv.h"
#include "v8.h"
#include <array>
#include <atomic>
#include <cstdint>
#include <functional>
#include <list>
#include <unordered_map>
#include <unordered_set>
#include <vector>
struct nghttp2_rcbuf;
namespace node {
namespace contextify {
class ContextifyScript;
class CompiledFnEntry;
}
namespace fs {
class FileHandleReadWrap;
}
namespace performance {
class performance_state;
}
namespace tracing {
class AgentWriterHandle;
}
#if HAVE_INSPECTOR
namespace profiler {
class V8CoverageConnection;
class V8CpuProfilerConnection;
class V8HeapProfilerConnection;
} // namespace profiler
namespace inspector {
class ParentInspectorHandle;
}
#endif // HAVE_INSPECTOR
namespace worker {
class Worker;
}
namespace loader {
class ModuleWrap;
struct PackageConfig {
enum class Exists { Yes, No };
enum class IsValid { Yes, No };
enum class HasMain { Yes, No };
enum class HasName { Yes, No };
enum PackageType : uint32_t { None = 0, CommonJS, Module };
const Exists exists;
const IsValid is_valid;
const HasMain has_main;
const std::string main;
const HasName has_name;
const std::string name;
const PackageType type;
v8::Global<v8::Value> exports;
};
} // namespace loader
enum class FsStatsOffset {
kDev = 0,
kMode,
kNlink,
kUid,
kGid,
kRdev,
kBlkSize,
kIno,
kSize,
kBlocks,
kATimeSec,
kATimeNsec,
kMTimeSec,
kMTimeNsec,
kCTimeSec,
kCTimeNsec,
kBirthTimeSec,
kBirthTimeNsec,
kFsStatsFieldsNumber
};
// Stat fields buffers contain twice the number of entries in an uv_stat_t
// because `fs.StatWatcher` needs room to store 2 `fs.Stats` instances.
constexpr size_t kFsStatsBufferLength =
static_cast<size_t>(FsStatsOffset::kFsStatsFieldsNumber) * 2;
// PER_ISOLATE_* macros: We have a lot of per-isolate properties
// and adding and maintaining their getters and setters by hand would be
// difficult so let's make the preprocessor generate them for us.
//
// In each macro, `V` is expected to be the name of a macro or function which
// accepts the number of arguments provided in each tuple in the macro body,
// typically two. The named function will be invoked against each tuple.
//
// Make sure that any macro V defined for use with the PER_ISOLATE_* macros is
// undefined again after use.
// Private symbols are per-isolate primitives but Environment proxies them
// for the sake of convenience. Strings should be ASCII-only and have a
// "node:" prefix to avoid name clashes with third-party code.
#define PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(V) \
V(alpn_buffer_private_symbol, "node:alpnBuffer") \
V(arrow_message_private_symbol, "node:arrowMessage") \
V(contextify_context_private_symbol, "node:contextify:context") \
V(contextify_global_private_symbol, "node:contextify:global") \
V(decorated_private_symbol, "node:decorated") \
V(napi_wrapper, "node:napi:wrapper") \
V(sab_lifetimepartner_symbol, "node:sharedArrayBufferLifetimePartner") \
// Symbols are per-isolate primitives but Environment proxies them
// for the sake of convenience.
#define PER_ISOLATE_SYMBOL_PROPERTIES(V) \
V(handle_onclose_symbol, "handle_onclose") \
V(no_message_symbol, "no_message_symbol") \
V(oninit_symbol, "oninit") \
V(owner_symbol, "owner") \
// Strings are per-isolate primitives but Environment proxies them
// for the sake of convenience. Strings should be ASCII-only.
#define PER_ISOLATE_STRING_PROPERTIES(V) \
V(address_string, "address") \
V(aliases_string, "aliases") \
V(args_string, "args") \
V(asn1curve_string, "asn1Curve") \
V(async_ids_stack_string, "async_ids_stack") \
V(bits_string, "bits") \
V(buffer_string, "buffer") \
V(bytes_parsed_string, "bytesParsed") \
V(bytes_read_string, "bytesRead") \
V(bytes_written_string, "bytesWritten") \
V(cached_data_produced_string, "cachedDataProduced") \
V(cached_data_rejected_string, "cachedDataRejected") \
V(cached_data_string, "cachedData") \
V(cache_key_string, "cacheKey") \
V(change_string, "change") \
V(channel_string, "channel") \
V(chunks_sent_since_last_write_string, "chunksSentSinceLastWrite") \
V(clone_unsupported_type_str, "Cannot transfer object of unsupported type.") \
V(code_string, "code") \
V(commonjs_string, "commonjs") \
V(config_string, "config") \
V(constants_string, "constants") \
V(crypto_dsa_string, "dsa") \
V(crypto_ec_string, "ec") \
V(crypto_ed25519_string, "ed25519") \
V(crypto_ed448_string, "ed448") \
V(crypto_x25519_string, "x25519") \
V(crypto_x448_string, "x448") \
V(crypto_rsa_string, "rsa") \
V(crypto_rsa_pss_string, "rsa-pss") \
V(cwd_string, "cwd") \
V(data_string, "data") \
V(default_string, "default") \
V(dest_string, "dest") \
V(destroyed_string, "destroyed") \
V(detached_string, "detached") \
V(dns_a_string, "A") \
V(dns_aaaa_string, "AAAA") \
V(dns_cname_string, "CNAME") \
V(dns_mx_string, "MX") \
V(dns_naptr_string, "NAPTR") \
V(dns_ns_string, "NS") \
V(dns_ptr_string, "PTR") \
V(dns_soa_string, "SOA") \
V(dns_srv_string, "SRV") \
V(dns_txt_string, "TXT") \
V(done_string, "done") \
V(dot_string, ".") \
V(duration_string, "duration") \
V(emit_warning_string, "emitWarning") \
V(empty_object_string, "{}") \
V(encoding_string, "encoding") \
V(entries_string, "entries") \
V(entry_type_string, "entryType") \
V(env_pairs_string, "envPairs") \
V(env_var_settings_string, "envVarSettings") \
V(errno_string, "errno") \
V(error_string, "error") \
V(exchange_string, "exchange") \
V(exit_code_string, "exitCode") \
V(expire_string, "expire") \
V(exponent_string, "exponent") \
V(exports_string, "exports") \
V(ext_key_usage_string, "ext_key_usage") \
V(external_stream_string, "_externalStream") \
V(family_string, "family") \
V(fatal_exception_string, "_fatalException") \
V(fd_string, "fd") \
V(fields_string, "fields") \
V(file_string, "file") \
V(fingerprint256_string, "fingerprint256") \
V(fingerprint_string, "fingerprint") \
V(flags_string, "flags") \
V(fragment_string, "fragment") \
V(function_string, "function") \
V(get_data_clone_error_string, "_getDataCloneError") \
V(get_shared_array_buffer_id_string, "_getSharedArrayBufferId") \
V(gid_string, "gid") \
V(h2_string, "h2") \
V(handle_string, "handle") \
V(help_text_string, "helpText") \
V(homedir_string, "homedir") \
V(host_string, "host") \
V(hostmaster_string, "hostmaster") \
V(http_1_1_string, "http/1.1") \
V(ignore_string, "ignore") \
V(infoaccess_string, "infoAccess") \
V(inherit_string, "inherit") \
V(input_string, "input") \
V(internal_binding_string, "internalBinding") \
V(internal_string, "internal") \
V(ipv4_string, "IPv4") \
V(ipv6_string, "IPv6") \
V(isclosing_string, "isClosing") \
V(issuer_string, "issuer") \
V(issuercert_string, "issuerCertificate") \
V(kill_signal_string, "killSignal") \
V(kind_string, "kind") \
V(library_string, "library") \
V(mac_string, "mac") \
V(main_string, "main") \
V(max_buffer_string, "maxBuffer") \
V(message_port_constructor_string, "MessagePort") \
V(message_port_string, "messagePort") \
V(message_string, "message") \
V(minttl_string, "minttl") \
V(module_string, "module") \
V(modulus_string, "modulus") \
V(name_string, "name") \
V(netmask_string, "netmask") \
V(next_string, "next") \
V(nistcurve_string, "nistCurve") \
V(node_string, "node") \
V(nsname_string, "nsname") \
V(ocsp_request_string, "OCSPRequest") \
V(oncertcb_string, "oncertcb") \
V(onchange_string, "onchange") \
V(onclienthello_string, "onclienthello") \
V(oncomplete_string, "oncomplete") \
V(onconnection_string, "onconnection") \
V(ondone_string, "ondone") \
V(onerror_string, "onerror") \
V(onexit_string, "onexit") \
V(onhandshakedone_string, "onhandshakedone") \
V(onhandshakestart_string, "onhandshakestart") \
V(onkeylog_string, "onkeylog") \
V(onmessage_string, "onmessage") \
V(onnewsession_string, "onnewsession") \
V(onocspresponse_string, "onocspresponse") \
V(onreadstart_string, "onreadstart") \
V(onreadstop_string, "onreadstop") \
V(onshutdown_string, "onshutdown") \
V(onsignal_string, "onsignal") \
V(onunpipe_string, "onunpipe") \
V(onwrite_string, "onwrite") \
V(openssl_error_stack, "opensslErrorStack") \
V(options_string, "options") \
V(order_string, "order") \
V(output_string, "output") \
V(parse_error_string, "Parse Error") \
V(password_string, "password") \
V(path_string, "path") \
V(pending_handle_string, "pendingHandle") \
V(pid_string, "pid") \
V(pipe_source_string, "pipeSource") \
V(pipe_string, "pipe") \
V(pipe_target_string, "pipeTarget") \
V(port1_string, "port1") \
V(port2_string, "port2") \
V(port_string, "port") \
V(preference_string, "preference") \
V(primordials_string, "primordials") \
V(priority_string, "priority") \
V(process_string, "process") \
V(promise_string, "promise") \
V(pubkey_string, "pubkey") \
V(query_string, "query") \
V(raw_string, "raw") \
V(read_host_object_string, "_readHostObject") \
V(readable_string, "readable") \
V(reason_string, "reason") \
V(refresh_string, "refresh") \
V(regexp_string, "regexp") \
V(rename_string, "rename") \
V(replacement_string, "replacement") \
V(require_string, "require") \
V(retry_string, "retry") \
V(scheme_string, "scheme") \
V(scopeid_string, "scopeid") \
V(serial_number_string, "serialNumber") \
V(serial_string, "serial") \
V(servername_string, "servername") \
V(service_string, "service") \
V(session_id_string, "sessionId") \
V(shell_string, "shell") \
V(signal_string, "signal") \
V(sink_string, "sink") \
V(size_string, "size") \
V(sni_context_err_string, "Invalid SNI context") \
V(sni_context_string, "sni_context") \
V(source_string, "source") \
V(stack_string, "stack") \
V(start_time_string, "startTime") \
V(status_string, "status") \
V(stdio_string, "stdio") \
V(subject_string, "subject") \
V(subjectaltname_string, "subjectaltname") \
V(syscall_string, "syscall") \
V(target_string, "target") \
V(thread_id_string, "threadId") \
V(ticketkeycallback_string, "onticketkeycallback") \
V(timeout_string, "timeout") \
V(tls_ticket_string, "tlsTicket") \
V(transfer_string, "transfer") \
V(ttl_string, "ttl") \
V(type_string, "type") \
V(uid_string, "uid") \
V(unknown_string, "<unknown>") \
V(url_string, "url") \
V(username_string, "username") \
V(valid_from_string, "valid_from") \
V(valid_to_string, "valid_to") \
V(value_string, "value") \
V(verify_error_string, "verifyError") \
V(version_string, "version") \
V(weight_string, "weight") \
V(windows_hide_string, "windowsHide") \
V(windows_verbatim_arguments_string, "windowsVerbatimArguments") \
V(wrap_string, "wrap") \
V(writable_string, "writable") \
V(write_host_object_string, "_writeHostObject") \
V(write_queue_size_string, "writeQueueSize") \
V(x_forwarded_string, "x-forwarded-for") \
V(zero_return_string, "ZERO_RETURN")
#define ENVIRONMENT_STRONG_PERSISTENT_TEMPLATES(V) \
V(as_callback_data_template, v8::FunctionTemplate) \
V(async_wrap_ctor_template, v8::FunctionTemplate) \
V(async_wrap_object_ctor_template, v8::FunctionTemplate) \
V(compiled_fn_entry_template, v8::ObjectTemplate) \
V(dir_instance_template, v8::ObjectTemplate) \
V(fd_constructor_template, v8::ObjectTemplate) \
V(fdclose_constructor_template, v8::ObjectTemplate) \
V(filehandlereadwrap_template, v8::ObjectTemplate) \
V(fsreqpromise_constructor_template, v8::ObjectTemplate) \
V(handle_wrap_ctor_template, v8::FunctionTemplate) \
V(http2settings_constructor_template, v8::ObjectTemplate) \
V(http2stream_constructor_template, v8::ObjectTemplate) \
V(http2ping_constructor_template, v8::ObjectTemplate) \
V(libuv_stream_wrap_ctor_template, v8::FunctionTemplate) \
V(message_event_object_template, v8::ObjectTemplate) \
V(message_port_constructor_template, v8::FunctionTemplate) \
V(pipe_constructor_template, v8::FunctionTemplate) \
V(promise_wrap_template, v8::ObjectTemplate) \
V(sab_lifetimepartner_constructor_template, v8::FunctionTemplate) \
V(script_context_constructor_template, v8::FunctionTemplate) \
V(secure_context_constructor_template, v8::FunctionTemplate) \
V(shutdown_wrap_template, v8::ObjectTemplate) \
V(streambaseoutputstream_constructor_template, v8::ObjectTemplate) \
V(tcp_constructor_template, v8::FunctionTemplate) \
V(tty_constructor_template, v8::FunctionTemplate) \
V(write_wrap_template, v8::ObjectTemplate)
#define ENVIRONMENT_STRONG_PERSISTENT_VALUES(V) \
V(as_callback_data, v8::Object) \
V(async_hooks_after_function, v8::Function) \
V(async_hooks_before_function, v8::Function) \
V(async_hooks_binding, v8::Object) \
V(async_hooks_destroy_function, v8::Function) \
V(async_hooks_init_function, v8::Function) \
V(async_hooks_promise_resolve_function, v8::Function) \
V(buffer_prototype_object, v8::Object) \
V(crypto_key_object_constructor, v8::Function) \
V(domain_callback, v8::Function) \
V(domexception_function, v8::Function) \
V(enhance_fatal_stack_after_inspector, v8::Function) \
V(enhance_fatal_stack_before_inspector, v8::Function) \
V(fs_use_promises_symbol, v8::Symbol) \
V(host_import_module_dynamically_callback, v8::Function) \
V(host_initialize_import_meta_object_callback, v8::Function) \
V(http2session_on_altsvc_function, v8::Function) \
V(http2session_on_error_function, v8::Function) \
V(http2session_on_frame_error_function, v8::Function) \
V(http2session_on_goaway_data_function, v8::Function) \
V(http2session_on_headers_function, v8::Function) \
V(http2session_on_origin_function, v8::Function) \
V(http2session_on_ping_function, v8::Function) \
V(http2session_on_priority_function, v8::Function) \
V(http2session_on_settings_function, v8::Function) \
V(http2session_on_stream_close_function, v8::Function) \
V(http2session_on_stream_trailers_function, v8::Function) \
V(internal_binding_loader, v8::Function) \
V(immediate_callback_function, v8::Function) \
V(inspector_console_extension_installer, v8::Function) \
V(message_port, v8::Object) \
V(native_module_require, v8::Function) \
V(performance_entry_callback, v8::Function) \
V(performance_entry_template, v8::Function) \
V(prepare_stack_trace_callback, v8::Function) \
V(process_object, v8::Object) \
V(primordials, v8::Object) \
V(promise_reject_callback, v8::Function) \
V(script_data_constructor_function, v8::Function) \
V(source_map_cache_getter, v8::Function) \
V(tick_callback_function, v8::Function) \
V(timers_callback_function, v8::Function) \
V(tls_wrap_constructor_function, v8::Function) \
V(trace_category_state_function, v8::Function) \
V(udp_constructor_function, v8::Function) \
V(url_constructor_function, v8::Function)
class Environment;
class IsolateData : public MemoryRetainer {
public:
IsolateData(v8::Isolate* isolate,
uv_loop_t* event_loop,
MultiIsolatePlatform* platform = nullptr,
ArrayBufferAllocator* node_allocator = nullptr,
const std::vector<size_t>* indexes = nullptr);
SET_MEMORY_INFO_NAME(IsolateData)
SET_SELF_SIZE(IsolateData)
void MemoryInfo(MemoryTracker* tracker) const override;
std::vector<size_t> Serialize(v8::SnapshotCreator* creator);
inline uv_loop_t* event_loop() const;
inline MultiIsolatePlatform* platform() const;
inline std::shared_ptr<PerIsolateOptions> options();
inline void set_options(std::shared_ptr<PerIsolateOptions> options);
inline bool uses_node_allocator() const;
inline v8::ArrayBuffer::Allocator* allocator() const;
inline NodeArrayBufferAllocator* node_allocator() const;
#define VP(PropertyName, StringValue) V(v8::Private, PropertyName)
#define VY(PropertyName, StringValue) V(v8::Symbol, PropertyName)
#define VS(PropertyName, StringValue) V(v8::String, PropertyName)
#define V(TypeName, PropertyName) \
inline v8::Local<TypeName> PropertyName(v8::Isolate* isolate) const;
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(VP)
PER_ISOLATE_SYMBOL_PROPERTIES(VY)
PER_ISOLATE_STRING_PROPERTIES(VS)
#undef V
#undef VY
#undef VS
#undef VP
std::unordered_map<nghttp2_rcbuf*, v8::Eternal<v8::String>> http2_static_strs;
inline v8::Isolate* isolate() const;
IsolateData(const IsolateData&) = delete;
IsolateData& operator=(const IsolateData&) = delete;
IsolateData(IsolateData&&) = delete;
IsolateData& operator=(IsolateData&&) = delete;
private:
void DeserializeProperties(const std::vector<size_t>* indexes);
void CreateProperties();
#define VP(PropertyName, StringValue) V(v8::Private, PropertyName)
#define VY(PropertyName, StringValue) V(v8::Symbol, PropertyName)
#define VS(PropertyName, StringValue) V(v8::String, PropertyName)
#define V(TypeName, PropertyName) \
v8::Eternal<TypeName> PropertyName ## _;
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(VP)
PER_ISOLATE_SYMBOL_PROPERTIES(VY)
PER_ISOLATE_STRING_PROPERTIES(VS)
#undef V
#undef VY
#undef VS
#undef VP
v8::Isolate* const isolate_;
uv_loop_t* const event_loop_;
v8::ArrayBuffer::Allocator* const allocator_;
NodeArrayBufferAllocator* const node_allocator_;
const bool uses_node_allocator_;
MultiIsolatePlatform* platform_;
std::shared_ptr<PerIsolateOptions> options_;
};
struct ContextInfo {
explicit ContextInfo(const std::string& name) : name(name) {}
const std::string name;
std::string origin;
bool is_default = false;
};
// Listing the AsyncWrap provider types first enables us to cast directly
// from a provider type to a debug category.
#define DEBUG_CATEGORY_NAMES(V) \
NODE_ASYNC_PROVIDER_TYPES(V) \
V(INSPECTOR_SERVER) \
V(INSPECTOR_PROFILER)
enum class DebugCategory {
#define V(name) name,
DEBUG_CATEGORY_NAMES(V)
#undef V
CATEGORY_COUNT
};
// A unique-pointer-ish object that is compatible with the JS engine's
// ArrayBuffer::Allocator.
struct AllocatedBuffer {
public:
explicit inline AllocatedBuffer(Environment* env = nullptr);
inline AllocatedBuffer(Environment* env, uv_buf_t buf);
inline ~AllocatedBuffer();
inline void Resize(size_t len);
inline uv_buf_t release();
inline char* data();
inline const char* data() const;
inline size_t size() const;
inline void clear();
inline v8::MaybeLocal<v8::Object> ToBuffer();
inline v8::Local<v8::ArrayBuffer> ToArrayBuffer();
inline AllocatedBuffer(AllocatedBuffer&& other);
inline AllocatedBuffer& operator=(AllocatedBuffer&& other);
AllocatedBuffer(const AllocatedBuffer& other) = delete;
AllocatedBuffer& operator=(const AllocatedBuffer& other) = delete;
private:
Environment* env_;
// We do not pass this to libuv directly, but uv_buf_t is a convenient way
// to represent a chunk of memory, and plays nicely with other parts of core.
uv_buf_t buffer_;
friend class Environment;
};
class AsyncRequest : public MemoryRetainer {
public:
AsyncRequest() = default;
~AsyncRequest();
AsyncRequest(const AsyncRequest&) = delete;
AsyncRequest& operator=(const AsyncRequest&) = delete;
AsyncRequest(AsyncRequest&&) = delete;
AsyncRequest& operator=(AsyncRequest&&) = delete;
void Install(Environment* env, void* data, uv_async_cb target);
void Uninstall();
void Stop();
inline void set_stopped(bool flag);
inline bool is_stopped() const;
uv_async_t* GetHandle();
void MemoryInfo(MemoryTracker* tracker) const override;
SET_MEMORY_INFO_NAME(AsyncRequest)
SET_SELF_SIZE(AsyncRequest)
private:
Environment* env_;
uv_async_t* async_ = nullptr;
std::atomic_bool stopped_ {true};
};
class KVStore {
public:
KVStore() = default;
virtual ~KVStore() = default;
KVStore(const KVStore&) = delete;
KVStore& operator=(const KVStore&) = delete;
KVStore(KVStore&&) = delete;
KVStore& operator=(KVStore&&) = delete;
virtual v8::MaybeLocal<v8::String> Get(v8::Isolate* isolate,
v8::Local<v8::String> key) const = 0;
virtual void Set(v8::Isolate* isolate,
v8::Local<v8::String> key,
v8::Local<v8::String> value) = 0;
virtual int32_t Query(v8::Isolate* isolate,
v8::Local<v8::String> key) const = 0;
virtual void Delete(v8::Isolate* isolate, v8::Local<v8::String> key) = 0;
virtual v8::Local<v8::Array> Enumerate(v8::Isolate* isolate) const = 0;
virtual std::shared_ptr<KVStore> Clone(v8::Isolate* isolate) const;
virtual v8::Maybe<bool> AssignFromObject(v8::Local<v8::Context> context,
v8::Local<v8::Object> entries);
static std::shared_ptr<KVStore> CreateMapKVStore();
};
namespace per_process {
extern std::shared_ptr<KVStore> system_environment;
}
class AsyncHooks : public MemoryRetainer {
public:
SET_MEMORY_INFO_NAME(AsyncHooks)
SET_SELF_SIZE(AsyncHooks)
void MemoryInfo(MemoryTracker* tracker) const override;
// Reason for both UidFields and Fields are that one is stored as a double*
// and the other as a uint32_t*.
enum Fields {
kInit,
kBefore,
kAfter,
kDestroy,
kPromiseResolve,
kTotals,
kCheck,
kStackLength,
kFieldsCount,
};
enum UidFields {
kExecutionAsyncId,
kTriggerAsyncId,
kAsyncIdCounter,
kDefaultTriggerAsyncId,
kUidFieldsCount,
};
inline AliasedUint32Array& fields();
inline AliasedFloat64Array& async_id_fields();
inline AliasedFloat64Array& async_ids_stack();
inline v8::Local<v8::String> provider_string(int idx);
inline void no_force_checks();
inline Environment* env();
inline void push_async_ids(double async_id, double trigger_async_id);
inline bool pop_async_id(double async_id);
inline void clear_async_id_stack(); // Used in fatal exceptions.
AsyncHooks(const AsyncHooks&) = delete;
AsyncHooks& operator=(const AsyncHooks&) = delete;
AsyncHooks(AsyncHooks&&) = delete;
AsyncHooks& operator=(AsyncHooks&&) = delete;
~AsyncHooks() = default;
// Used to set the kDefaultTriggerAsyncId in a scope. This is instead of
// passing the trigger_async_id along with other constructor arguments.
class DefaultTriggerAsyncIdScope {
public:
DefaultTriggerAsyncIdScope() = delete;
explicit DefaultTriggerAsyncIdScope(Environment* env,
double init_trigger_async_id);
explicit DefaultTriggerAsyncIdScope(AsyncWrap* async_wrap);
~DefaultTriggerAsyncIdScope();
DefaultTriggerAsyncIdScope(const DefaultTriggerAsyncIdScope&) = delete;
DefaultTriggerAsyncIdScope& operator=(const DefaultTriggerAsyncIdScope&) =
delete;
DefaultTriggerAsyncIdScope(DefaultTriggerAsyncIdScope&&) = delete;
DefaultTriggerAsyncIdScope& operator=(DefaultTriggerAsyncIdScope&&) =
delete;
private:
AsyncHooks* async_hooks_;
double old_default_trigger_async_id_;
};
private:
friend class Environment; // So we can call the constructor.
inline AsyncHooks();
// Keep a list of all Persistent strings used for Provider types.
std::array<v8::Eternal<v8::String>, AsyncWrap::PROVIDERS_LENGTH> providers_;
// Stores the ids of the current execution context stack.
AliasedFloat64Array async_ids_stack_;
// Attached to a Uint32Array that tracks the number of active hooks for
// each type.
AliasedUint32Array fields_;
// Attached to a Float64Array that tracks the state of async resources.
AliasedFloat64Array async_id_fields_;
void grow_async_ids_stack();
};
class ImmediateInfo : public MemoryRetainer {
public:
inline AliasedUint32Array& fields();
inline uint32_t count() const;
inline uint32_t ref_count() const;
inline bool has_outstanding() const;
inline void count_inc(uint32_t increment);
inline void count_dec(uint32_t decrement);
inline void ref_count_inc(uint32_t increment);
inline void ref_count_dec(uint32_t decrement);
ImmediateInfo(const ImmediateInfo&) = delete;
ImmediateInfo& operator=(const ImmediateInfo&) = delete;
ImmediateInfo(ImmediateInfo&&) = delete;
ImmediateInfo& operator=(ImmediateInfo&&) = delete;
~ImmediateInfo() = default;
SET_MEMORY_INFO_NAME(ImmediateInfo)
SET_SELF_SIZE(ImmediateInfo)
void MemoryInfo(MemoryTracker* tracker) const override;
private:
friend class Environment; // So we can call the constructor.
inline explicit ImmediateInfo(v8::Isolate* isolate);
enum Fields { kCount, kRefCount, kHasOutstanding, kFieldsCount };
AliasedUint32Array fields_;
};
class TickInfo : public MemoryRetainer {
public:
inline AliasedUint8Array& fields();
inline bool has_tick_scheduled() const;
inline bool has_rejection_to_warn() const;
SET_MEMORY_INFO_NAME(TickInfo)
SET_SELF_SIZE(TickInfo)
void MemoryInfo(MemoryTracker* tracker) const override;
TickInfo(const TickInfo&) = delete;
TickInfo& operator=(const TickInfo&) = delete;
TickInfo(TickInfo&&) = delete;
TickInfo& operator=(TickInfo&&) = delete;
~TickInfo() = default;
private:
friend class Environment; // So we can call the constructor.
inline explicit TickInfo(v8::Isolate* isolate);
enum Fields { kHasTickScheduled = 0, kHasRejectionToWarn, kFieldsCount };
AliasedUint8Array fields_;
};
class TrackingTraceStateObserver :
public v8::TracingController::TraceStateObserver {
public:
explicit TrackingTraceStateObserver(Environment* env) : env_(env) {}
void OnTraceEnabled() override {
UpdateTraceCategoryState();
}
void OnTraceDisabled() override {
UpdateTraceCategoryState();
}
private:
void UpdateTraceCategoryState();
Environment* env_;
};
class ShouldNotAbortOnUncaughtScope {
public:
explicit inline ShouldNotAbortOnUncaughtScope(Environment* env);
inline void Close();
inline ~ShouldNotAbortOnUncaughtScope();
ShouldNotAbortOnUncaughtScope(const ShouldNotAbortOnUncaughtScope&) = delete;
ShouldNotAbortOnUncaughtScope& operator=(
const ShouldNotAbortOnUncaughtScope&) = delete;
ShouldNotAbortOnUncaughtScope(ShouldNotAbortOnUncaughtScope&&) = delete;
ShouldNotAbortOnUncaughtScope& operator=(ShouldNotAbortOnUncaughtScope&&) =
delete;
private:
Environment* env_;
};
class CleanupHookCallback {
public:
CleanupHookCallback(void (*fn)(void*),
void* arg,
uint64_t insertion_order_counter)
: fn_(fn), arg_(arg), insertion_order_counter_(insertion_order_counter) {}
// Only hashes `arg_`, since that is usually enough to identify the hook.
struct Hash {
inline size_t operator()(const CleanupHookCallback& cb) const;
};
// Compares by `fn_` and `arg_` being equal.
struct Equal {
inline bool operator()(const CleanupHookCallback& a,
const CleanupHookCallback& b) const;
};
inline BaseObject* GetBaseObject() const;
private:
friend class Environment;
void (*fn_)(void*);
void* arg_;
// We keep track of the insertion order for these objects, so that we can
// call the callbacks in reverse order when we are cleaning up.
uint64_t insertion_order_counter_;
};
class Environment : public MemoryRetainer {
public:
Environment(const Environment&) = delete;
Environment& operator=(const Environment&) = delete;
Environment(Environment&&) = delete;
Environment& operator=(Environment&&) = delete;
SET_MEMORY_INFO_NAME(Environment)
inline size_t SelfSize() const override;
bool IsRootNode() const override { return true; }
void MemoryInfo(MemoryTracker* tracker) const override;
void CreateProperties();
// Should be called before InitializeInspector()
void InitializeDiagnostics();
#if HAVE_INSPECTOR
// If the environment is created for a worker, pass parent_handle and
// the ownership if transferred into the Environment.
int InitializeInspector(
std::unique_ptr<inspector::ParentInspectorHandle> parent_handle);
#endif
v8::MaybeLocal<v8::Value> BootstrapInternalLoaders();
v8::MaybeLocal<v8::Value> BootstrapNode();
v8::MaybeLocal<v8::Value> RunBootstrapping();
inline size_t async_callback_scope_depth() const;
inline void PushAsyncCallbackScope();
inline void PopAsyncCallbackScope();
enum Flags {
kNoFlags = 0,
kIsMainThread = 1 << 0,
kOwnsProcessState = 1 << 1,
kOwnsInspector = 1 << 2,
};
static inline Environment* GetCurrent(v8::Isolate* isolate);
static inline Environment* GetCurrent(v8::Local<v8::Context> context);
static inline Environment* GetCurrent(
const v8::FunctionCallbackInfo<v8::Value>& info);
template <typename T>
static inline Environment* GetCurrent(
const v8::PropertyCallbackInfo<T>& info);
static inline Environment* GetFromCallbackData(v8::Local<v8::Value> val);
static uv_key_t thread_local_env;
static inline Environment* GetThreadLocalEnv();
Environment(IsolateData* isolate_data,
v8::Local<v8::Context> context,
const std::vector<std::string>& args,
const std::vector<std::string>& exec_args,
Flags flags = Flags(),
uint64_t thread_id = kNoThreadId);
~Environment();
void InitializeLibuv(bool start_profiler_idle_notifier);
inline const std::vector<std::string>& exec_argv();
inline const std::vector<std::string>& argv();
const std::string& exec_path() const;
typedef void (*HandleCleanupCb)(Environment* env,
uv_handle_t* handle,
void* arg);
struct HandleCleanup {
uv_handle_t* handle_;
HandleCleanupCb cb_;
void* arg_;
};
void RegisterHandleCleanups();
void CleanupHandles();
void Exit(int code);
void ExitEnv();
// Register clean-up cb to be called on environment destruction.
inline void RegisterHandleCleanup(uv_handle_t* handle,
HandleCleanupCb cb,
void* arg);
template <typename T, typename OnCloseCallback>
inline void CloseHandle(T* handle, OnCloseCallback callback);
inline void AssignToContext(v8::Local<v8::Context> context,
const ContextInfo& info);
void StartProfilerIdleNotifier();
void StopProfilerIdleNotifier();
inline bool profiler_idle_notifier_started() const;
inline v8::Isolate* isolate() const;
inline uv_loop_t* event_loop() const;
inline void TryLoadAddon(
const char* filename,
int flags,
const std::function<bool(binding::DLib*)>& was_loaded);
static inline Environment* from_timer_handle(uv_timer_t* handle);
inline uv_timer_t* timer_handle();
static inline Environment* from_immediate_check_handle(uv_check_t* handle);
inline uv_check_t* immediate_check_handle();
inline uv_idle_t* immediate_idle_handle();
inline void IncreaseWaitingRequestCounter();
inline void DecreaseWaitingRequestCounter();
inline AsyncHooks* async_hooks();
inline ImmediateInfo* immediate_info();
inline TickInfo* tick_info();
inline uint64_t timer_base() const;
inline std::shared_ptr<KVStore> env_vars();
inline void set_env_vars(std::shared_ptr<KVStore> env_vars);
inline IsolateData* isolate_data() const;
// Utilities that allocate memory using the Isolate's ArrayBuffer::Allocator.
// In particular, using AllocateManaged() will provide a RAII-style object
// with easy conversion to `Buffer` and `ArrayBuffer` objects.
inline AllocatedBuffer AllocateManaged(size_t size, bool checked = true);
inline char* Allocate(size_t size);
inline char* AllocateUnchecked(size_t size);
char* Reallocate(char* data, size_t old_size, size_t size);
inline void Free(char* data, size_t size);
inline bool printed_error() const;
inline void set_printed_error(bool value);
void PrintSyncTrace() const;
inline void set_trace_sync_io(bool value);
// This stores whether the --abort-on-uncaught-exception flag was passed
// to Node.
inline bool abort_on_uncaught_exception() const;
inline void set_abort_on_uncaught_exception(bool value);
// This is a pseudo-boolean that keeps track of whether an uncaught exception
// should abort the process or not if --abort-on-uncaught-exception was
// passed to Node. If the flag was not passed, it is ignored.
inline AliasedUint32Array& should_abort_on_uncaught_toggle();
inline AliasedInt32Array& stream_base_state();
// The necessary API for async_hooks.
inline double new_async_id();
inline double execution_async_id();
inline double trigger_async_id();
inline double get_default_trigger_async_id();
// List of id's that have been destroyed and need the destroy() cb called.
inline std::vector<double>* destroy_async_id_list();
std::set<std::string> native_modules_with_cache;
std::set<std::string> native_modules_without_cache;
std::unordered_multimap<int, loader::ModuleWrap*> hash_to_module_map;
std::unordered_map<uint32_t, loader::ModuleWrap*> id_to_module_map;
std::unordered_map<uint32_t, contextify::ContextifyScript*>
id_to_script_map;
std::unordered_map<uint32_t, contextify::CompiledFnEntry*> id_to_function_map;
inline uint32_t get_next_module_id();
inline uint32_t get_next_script_id();
inline uint32_t get_next_function_id();
std::unordered_map<std::string, const loader::PackageConfig>
package_json_cache;
inline double* heap_statistics_buffer() const;
inline void set_heap_statistics_buffer(double* pointer);
inline double* heap_space_statistics_buffer() const;
inline void set_heap_space_statistics_buffer(double* pointer);
inline double* heap_code_statistics_buffer() const;
inline void set_heap_code_statistics_buffer(double* pointer);
inline char* http_parser_buffer() const;
inline void set_http_parser_buffer(char* buffer);
inline bool http_parser_buffer_in_use() const;
inline void set_http_parser_buffer_in_use(bool in_use);
inline http2::Http2State* http2_state() const;
inline void set_http2_state(std::unique_ptr<http2::Http2State> state);
inline bool debug_enabled(DebugCategory category) const;
inline void set_debug_enabled(DebugCategory category, bool enabled);
void set_debug_categories(const std::string& cats, bool enabled);
inline AliasedFloat64Array* fs_stats_field_array();
inline AliasedBigUint64Array* fs_stats_field_bigint_array();
inline std::vector<std::unique_ptr<fs::FileHandleReadWrap>>&
file_handle_read_wrap_freelist();
inline performance::performance_state* performance_state();
inline std::unordered_map<std::string, uint64_t>* performance_marks();
void CollectUVExceptionInfo(v8::Local<v8::Value> context,
int errorno,
const char* syscall = nullptr,
const char* message = nullptr,
const char* path = nullptr,
const char* dest = nullptr);
// If this flag is set, calls into JS (if they would be observable
// from userland) must be avoided. This flag does not indicate whether
// calling into JS is allowed from a VM perspective at this point.
inline bool can_call_into_js() const;
inline void set_can_call_into_js(bool can_call_into_js);
inline bool has_run_bootstrapping_code() const;
inline void set_has_run_bootstrapping_code(bool has_run_bootstrapping_code);
inline bool has_serialized_options() const;
inline void set_has_serialized_options(bool has_serialized_options);
static uint64_t AllocateThreadId();
static constexpr uint64_t kNoThreadId = -1;
inline bool is_main_thread() const;
inline bool owns_process_state() const;
inline bool owns_inspector() const;
inline uint64_t thread_id() const;
inline worker::Worker* worker_context() const;
Environment* worker_parent_env() const;
inline void set_worker_context(worker::Worker* context);
inline void add_sub_worker_context(worker::Worker* context);
inline void remove_sub_worker_context(worker::Worker* context);
void stop_sub_worker_contexts();
inline bool is_stopping() const;
inline std::list<node_module>* extra_linked_bindings();
inline node_module* extra_linked_bindings_head();
inline const Mutex& extra_linked_bindings_mutex() const;
inline void ThrowError(const char* errmsg);
inline void ThrowTypeError(const char* errmsg);
inline void ThrowRangeError(const char* errmsg);
inline void ThrowErrnoException(int errorno,
const char* syscall = nullptr,
const char* message = nullptr,
const char* path = nullptr);
inline void ThrowUVException(int errorno,
const char* syscall = nullptr,
const char* message = nullptr,
const char* path = nullptr,
const char* dest = nullptr);
inline v8::Local<v8::FunctionTemplate>
NewFunctionTemplate(v8::FunctionCallback callback,
v8::Local<v8::Signature> signature =
v8::Local<v8::Signature>(),
v8::ConstructorBehavior behavior =
v8::ConstructorBehavior::kAllow,
v8::SideEffectType side_effect =
v8::SideEffectType::kHasSideEffect);
// Convenience methods for NewFunctionTemplate().
inline void SetMethod(v8::Local<v8::Object> that,
const char* name,
v8::FunctionCallback callback);
inline void SetProtoMethod(v8::Local<v8::FunctionTemplate> that,
const char* name,
v8::FunctionCallback callback);
// Safe variants denote the function has no side effects.
inline void SetMethodNoSideEffect(v8::Local<v8::Object> that,
const char* name,
v8::FunctionCallback callback);
inline void SetProtoMethodNoSideEffect(v8::Local<v8::FunctionTemplate> that,
const char* name,
v8::FunctionCallback callback);
void BeforeExit(void (*cb)(void* arg), void* arg);
void RunBeforeExitCallbacks();
void AtExit(void (*cb)(void* arg), void* arg);
void RunAtExitCallbacks();
void RegisterFinalizationGroupForCleanup(v8::Local<v8::FinalizationGroup> fg);
bool RunWeakRefCleanup();
// Strings and private symbols are shared across shared contexts
// The getters simply proxy to the per-isolate primitive.
#define VP(PropertyName, StringValue) V(v8::Private, PropertyName)
#define VY(PropertyName, StringValue) V(v8::Symbol, PropertyName)
#define VS(PropertyName, StringValue) V(v8::String, PropertyName)
#define V(TypeName, PropertyName) \
inline v8::Local<TypeName> PropertyName() const;
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(VP)
PER_ISOLATE_SYMBOL_PROPERTIES(VY)
PER_ISOLATE_STRING_PROPERTIES(VS)
#undef V
#undef VS
#undef VY
#undef VP
#define V(PropertyName, TypeName) \
inline v8::Local<TypeName> PropertyName() const; \
inline void set_ ## PropertyName(v8::Local<TypeName> value);
ENVIRONMENT_STRONG_PERSISTENT_VALUES(V)
ENVIRONMENT_STRONG_PERSISTENT_TEMPLATES(V)
#undef V
inline v8::Local<v8::Context> context() const;
#if HAVE_INSPECTOR
inline inspector::Agent* inspector_agent() const {
return inspector_agent_.get();
}
inline bool is_in_inspector_console_call() const;
inline void set_is_in_inspector_console_call(bool value);
#endif
typedef ListHead<HandleWrap, &HandleWrap::handle_wrap_queue_> HandleWrapQueue;
typedef ListHead<ReqWrapBase, &ReqWrapBase::req_wrap_queue_> ReqWrapQueue;
inline HandleWrapQueue* handle_wrap_queue() { return &handle_wrap_queue_; }
inline ReqWrapQueue* req_wrap_queue() { return &req_wrap_queue_; }
inline bool EmitProcessEnvWarning() {
bool current_value = emit_env_nonstring_warning_;
emit_env_nonstring_warning_ = false;
return current_value;
}
inline bool EmitErrNameWarning() {
bool current_value = emit_err_name_warning_;
emit_err_name_warning_ = false;
return current_value;
}
// cb will be called as cb(env) on the next event loop iteration.
// keep_alive will be kept alive between now and after the callback has run.
template <typename Fn>
inline void SetImmediate(Fn&& cb,
v8::Local<v8::Object> keep_alive =
v8::Local<v8::Object>());
template <typename Fn>
inline void SetUnrefImmediate(Fn&& cb,
v8::Local<v8::Object> keep_alive =
v8::Local<v8::Object>());
// This needs to be available for the JS-land setImmediate().
void ToggleImmediateRef(bool ref);
inline void PushShouldNotAbortOnUncaughtScope();
inline void PopShouldNotAbortOnUncaughtScope();
inline bool inside_should_not_abort_on_uncaught_scope() const;
static inline Environment* ForAsyncHooks(AsyncHooks* hooks);
v8::Local<v8::Value> GetNow();
void ScheduleTimer(int64_t duration);
void ToggleTimerRef(bool ref);
inline void AddCleanupHook(void (*fn)(void*), void* arg);
inline void RemoveCleanupHook(void (*fn)(void*), void* arg);
void RunCleanup();
static void BuildEmbedderGraph(v8::Isolate* isolate,
v8::EmbedderGraph* graph,
void* data);
inline std::shared_ptr<EnvironmentOptions> options();
inline std::shared_ptr<HostPort> inspector_host_port();
inline AsyncRequest* thread_stopper() { return &thread_stopper_; }
#if HAVE_INSPECTOR
void set_coverage_connection(
std::unique_ptr<profiler::V8CoverageConnection> connection);
profiler::V8CoverageConnection* coverage_connection();
inline void set_coverage_directory(const char* directory);
inline const std::string& coverage_directory() const;
void set_cpu_profiler_connection(
std::unique_ptr<profiler::V8CpuProfilerConnection> connection);
profiler::V8CpuProfilerConnection* cpu_profiler_connection();
inline void set_cpu_prof_name(const std::string& name);
inline const std::string& cpu_prof_name() const;
inline void set_cpu_prof_interval(uint64_t interval);
inline uint64_t cpu_prof_interval() const;
inline void set_cpu_prof_dir(const std::string& dir);
inline const std::string& cpu_prof_dir() const;
void set_heap_profiler_connection(
std::unique_ptr<profiler::V8HeapProfilerConnection> connection);
profiler::V8HeapProfilerConnection* heap_profiler_connection();
inline void set_heap_prof_name(const std::string& name);
inline const std::string& heap_prof_name() const;
inline void set_heap_prof_dir(const std::string& dir);
inline const std::string& heap_prof_dir() const;
inline void set_heap_prof_interval(uint64_t interval);
inline uint64_t heap_prof_interval() const;
#endif // HAVE_INSPECTOR
// Only available if a MultiIsolatePlatform is in use.
void AddArrayBufferAllocatorToKeepAliveUntilIsolateDispose(
std::shared_ptr<v8::ArrayBuffer::Allocator>);
private:
template <typename Fn>
inline void CreateImmediate(Fn&& cb,
v8::Local<v8::Object> keep_alive,
bool ref);
inline void ThrowError(v8::Local<v8::Value> (*fun)(v8::Local<v8::String>),
const char* errmsg);
std::list<binding::DLib> loaded_addons_;
v8::Isolate* const isolate_;
IsolateData* const isolate_data_;
uv_timer_t timer_handle_;
uv_check_t immediate_check_handle_;
uv_idle_t immediate_idle_handle_;
uv_prepare_t idle_prepare_handle_;
uv_check_t idle_check_handle_;
bool profiler_idle_notifier_started_ = false;
AsyncHooks async_hooks_;
ImmediateInfo immediate_info_;
TickInfo tick_info_;
const uint64_t timer_base_;
std::shared_ptr<KVStore> env_vars_;
bool printed_error_ = false;
bool trace_sync_io_ = false;
bool emit_env_nonstring_warning_ = true;
bool emit_err_name_warning_ = true;
size_t async_callback_scope_depth_ = 0;
std::vector<double> destroy_async_id_list_;
#if HAVE_INSPECTOR
std::unique_ptr<profiler::V8CoverageConnection> coverage_connection_;
std::unique_ptr<profiler::V8CpuProfilerConnection> cpu_profiler_connection_;
std::string coverage_directory_;
std::string cpu_prof_dir_;
std::string cpu_prof_name_;
uint64_t cpu_prof_interval_;
std::unique_ptr<profiler::V8HeapProfilerConnection> heap_profiler_connection_;
std::string heap_prof_dir_;
std::string heap_prof_name_;
uint64_t heap_prof_interval_;
#endif // HAVE_INSPECTOR
std::shared_ptr<EnvironmentOptions> options_;
// options_ contains debug options parsed from CLI arguments,
// while inspector_host_port_ stores the actual inspector host
// and port being used. For example the port is -1 by default
// and can be specified as 0 (meaning any port allocated when the
// server starts listening), but when the inspector server starts
// the inspector_host_port_->port() will be the actual port being
// used.
std::shared_ptr<HostPort> inspector_host_port_;
std::vector<std::string> exec_argv_;
std::vector<std::string> argv_;
std::string exec_path_;
uint32_t module_id_counter_ = 0;
uint32_t script_id_counter_ = 0;
uint32_t function_id_counter_ = 0;
AliasedUint32Array should_abort_on_uncaught_toggle_;
int should_not_abort_scope_counter_ = 0;
std::unique_ptr<TrackingTraceStateObserver> trace_state_observer_;
AliasedInt32Array stream_base_state_;
std::unique_ptr<performance::performance_state> performance_state_;
std::unordered_map<std::string, uint64_t> performance_marks_;
bool has_run_bootstrapping_code_ = false;
bool has_serialized_options_ = false;
bool can_call_into_js_ = true;
Flags flags_;
uint64_t thread_id_;
std::unordered_set<worker::Worker*> sub_worker_contexts_;
std::deque<v8::Global<v8::FinalizationGroup>> cleanup_finalization_groups_;
static void* const kNodeContextTagPtr;
static int const kNodeContextTag;
#if HAVE_INSPECTOR
std::unique_ptr<inspector::Agent> inspector_agent_;
bool is_in_inspector_console_call_ = false;
#endif
// handle_wrap_queue_ and req_wrap_queue_ needs to be at a fixed offset from
// the start of the class because it is used by
// src/node_postmortem_metadata.cc to calculate offsets and generate debug
// symbols for Environment, which assumes that the position of members in
// memory are predictable. For more information please refer to
// `doc/guides/node-postmortem-support.md`
friend int GenDebugSymbols();
HandleWrapQueue handle_wrap_queue_;
ReqWrapQueue req_wrap_queue_;
std::list<HandleCleanup> handle_cleanup_queue_;
int handle_cleanup_waiting_ = 0;
int request_waiting_ = 0;
double* heap_statistics_buffer_ = nullptr;
double* heap_space_statistics_buffer_ = nullptr;
double* heap_code_statistics_buffer_ = nullptr;
char* http_parser_buffer_ = nullptr;
bool http_parser_buffer_in_use_ = false;
std::unique_ptr<http2::Http2State> http2_state_;
bool debug_enabled_[static_cast<int>(DebugCategory::CATEGORY_COUNT)] = {0};
AliasedFloat64Array fs_stats_field_array_;
AliasedBigUint64Array fs_stats_field_bigint_array_;
std::vector<std::unique_ptr<fs::FileHandleReadWrap>>
file_handle_read_wrap_freelist_;
worker::Worker* worker_context_ = nullptr;
std::list<node_module> extra_linked_bindings_;
Mutex extra_linked_bindings_mutex_;
static void RunTimers(uv_timer_t* handle);
struct ExitCallback {
void (*cb_)(void* arg);
void* arg_;
};
std::list<ExitCallback> before_exit_functions_;
std::list<ExitCallback> at_exit_functions_;
class NativeImmediateCallback {
public:
explicit inline NativeImmediateCallback(bool refed);
virtual ~NativeImmediateCallback() = default;
virtual void Call(Environment* env) = 0;
inline bool is_refed() const;
inline std::unique_ptr<NativeImmediateCallback> get_next();
inline void set_next(std::unique_ptr<NativeImmediateCallback> next);
private:
bool refed_;
std::unique_ptr<NativeImmediateCallback> next_;
};
template <typename Fn>
class NativeImmediateCallbackImpl final : public NativeImmediateCallback {
public:
NativeImmediateCallbackImpl(Fn&& callback,
v8::Global<v8::Object>&& keep_alive,
bool refed);
void Call(Environment* env) override;
private:
Fn callback_;
v8::Global<v8::Object> keep_alive_;
};
std::unique_ptr<NativeImmediateCallback> native_immediate_callbacks_head_;
NativeImmediateCallback* native_immediate_callbacks_tail_ = nullptr;
void RunAndClearNativeImmediates();
static void CheckImmediate(uv_check_t* handle);
// Use an unordered_set, so that we have efficient insertion and removal.
std::unordered_set<CleanupHookCallback,
CleanupHookCallback::Hash,
CleanupHookCallback::Equal> cleanup_hooks_;
uint64_t cleanup_hook_counter_ = 0;
bool started_cleanup_ = false;
// A custom async abstraction (a pair of async handle and a state variable)
// Used by embedders to shutdown running Node instance.
AsyncRequest thread_stopper_;
typedef std::unordered_set<std::shared_ptr<v8::ArrayBuffer::Allocator>>
ArrayBufferAllocatorList;
ArrayBufferAllocatorList* keep_alive_allocators_ = nullptr;
template <typename T>
void ForEachBaseObject(T&& iterator);
#define V(PropertyName, TypeName) v8::Global<TypeName> PropertyName ## _;
ENVIRONMENT_STRONG_PERSISTENT_VALUES(V)
ENVIRONMENT_STRONG_PERSISTENT_TEMPLATES(V)
#undef V
v8::Global<v8::Context> context_;
};
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_ENV_H_
|