-
Notifications
You must be signed in to change notification settings - Fork 29.6k
/
env.h
1064 lines (902 loc) · 47 KB
/
env.h
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
// 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"
#endif
#include "handle_wrap.h"
#include "req_wrap.h"
#include "util.h"
#include "uv.h"
#include "v8.h"
#include "node.h"
#include "node_options.h"
#include "node_http2_state.h"
#include <list>
#include <stdint.h>
#include <vector>
#include <unordered_map>
#include <unordered_set>
struct nghttp2_rcbuf;
namespace node {
namespace contextify {
class ContextifyScript;
}
namespace fs {
class FileHandleReadWrap;
}
namespace performance {
class performance_state;
}
namespace tracing {
class AgentWriterHandle;
}
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 };
Exists exists;
IsValid is_valid;
HasMain has_main;
std::string main;
};
} // namespace loader
// The number of items passed to push_values_to_array_function has diminishing
// returns around 8. This should be used at all call sites using said function.
#ifndef NODE_PUSH_VAL_TO_ARRAY_MAX
#define NODE_PUSH_VAL_TO_ARRAY_MAX 8
#endif
// 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_env, "node:napi:env") \
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(owner_symbol, "owner") \
V(oninit_symbol, "oninit") \
// 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(async, "async") \
V(async_ids_stack_string, "async_ids_stack") \
V(buffer_string, "buffer") \
V(bytes_string, "bytes") \
V(bytes_parsed_string, "bytesParsed") \
V(bytes_read_string, "bytesRead") \
V(bytes_written_string, "bytesWritten") \
V(cached_data_string, "cachedData") \
V(cached_data_produced_string, "cachedDataProduced") \
V(cached_data_rejected_string, "cachedDataRejected") \
V(change_string, "change") \
V(channel_string, "channel") \
V(chunks_sent_since_last_write_string, "chunksSentSinceLastWrite") \
V(constants_string, "constants") \
V(oncertcb_string, "oncertcb") \
V(code_string, "code") \
V(cwd_string, "cwd") \
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(duration_string, "duration") \
V(emit_warning_string, "emitWarning") \
V(exchange_string, "exchange") \
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(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(file_string, "file") \
V(fingerprint_string, "fingerprint") \
V(fingerprint256_string, "fingerprint256") \
V(flags_string, "flags") \
V(fragment_string, "fragment") \
V(get_data_clone_error_string, "_getDataCloneError") \
V(get_shared_array_buffer_id_string, "_getSharedArrayBufferId") \
V(gid_string, "gid") \
V(handle_string, "handle") \
V(help_text_string, "helpText") \
V(homedir_string, "homedir") \
V(host_string, "host") \
V(hostmaster_string, "hostmaster") \
V(ignore_string, "ignore") \
V(infoaccess_string, "infoAccess") \
V(inherit_string, "inherit") \
V(input_string, "input") \
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(mac_string, "mac") \
V(main_string, "main") \
V(max_buffer_string, "maxBuffer") \
V(message_string, "message") \
V(message_port_string, "messagePort") \
V(message_port_constructor_string, "MessagePort") \
V(minttl_string, "minttl") \
V(modulus_string, "modulus") \
V(name_string, "name") \
V(netmask_string, "netmask") \
V(nsname_string, "nsname") \
V(ocsp_request_string, "OCSPRequest") \
V(onaltsvc_string, "onaltsvc") \
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(onframeerror_string, "onframeerror") \
V(ongetpadding_string, "ongetpadding") \
V(onhandshakedone_string, "onhandshakedone") \
V(onhandshakestart_string, "onhandshakestart") \
V(onheaders_string, "onheaders") \
V(onmessage_string, "onmessage") \
V(onnewsession_string, "onnewsession") \
V(onocspresponse_string, "onocspresponse") \
V(ongoawaydata_string, "ongoawaydata") \
V(onorigin_string, "onorigin") \
V(onpriority_string, "onpriority") \
V(onread_string, "onread") \
V(onreadstart_string, "onreadstart") \
V(onreadstop_string, "onreadstop") \
V(onping_string, "onping") \
V(onsettings_string, "onsettings") \
V(onshutdown_string, "onshutdown") \
V(onsignal_string, "onsignal") \
V(onstreamclose_string, "onstreamclose") \
V(ontrailers_string, "ontrailers") \
V(onunpipe_string, "onunpipe") \
V(onwrite_string, "onwrite") \
V(openssl_error_stack, "opensslErrorStack") \
V(options_string, "options") \
V(output_string, "output") \
V(order_string, "order") \
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_string, "pipe") \
V(pipe_target_string, "pipeTarget") \
V(pipe_source_string, "pipeSource") \
V(port_string, "port") \
V(port1_string, "port1") \
V(port2_string, "port2") \
V(preference_string, "preference") \
V(priority_string, "priority") \
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(refresh_string, "refresh") \
V(regexp_string, "regexp") \
V(rename_string, "rename") \
V(replacement_string, "replacement") \
V(retry_string, "retry") \
V(scheme_string, "scheme") \
V(serial_string, "serial") \
V(scopeid_string, "scopeid") \
V(serial_number_string, "serialNumber") \
V(service_string, "service") \
V(servername_string, "servername") \
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(thread_id_string, "threadId") \
V(ticketkeycallback_string, "onticketkeycallback") \
V(timeout_string, "timeout") \
V(tls_ticket_string, "tlsTicket") \
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_PROPERTIES(V) \
V(as_external, v8::External) \
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(async_wrap_object_ctor_template, v8::FunctionTemplate) \
V(async_wrap_ctor_template, v8::FunctionTemplate) \
V(buffer_prototype_object, v8::Object) \
V(context, v8::Context) \
V(domain_callback, v8::Function) \
V(domexception_function, v8::Function) \
V(fdclose_constructor_template, v8::ObjectTemplate) \
V(fd_constructor_template, v8::ObjectTemplate) \
V(filehandlereadwrap_template, v8::ObjectTemplate) \
V(fsreqpromise_constructor_template, v8::ObjectTemplate) \
V(fs_use_promises_symbol, v8::Symbol) \
V(handle_wrap_ctor_template, v8::FunctionTemplate) \
V(host_import_module_dynamically_callback, v8::Function) \
V(host_initialize_import_meta_object_callback, v8::Function) \
V(http2ping_constructor_template, v8::ObjectTemplate) \
V(http2settings_constructor_template, v8::ObjectTemplate) \
V(http2stream_constructor_template, v8::ObjectTemplate) \
V(immediate_callback_function, v8::Function) \
V(inspector_console_api_object, v8::Object) \
V(libuv_stream_wrap_ctor_template, v8::FunctionTemplate) \
V(message_port, v8::Object) \
V(message_port_constructor_template, v8::FunctionTemplate) \
V(pipe_constructor_template, v8::FunctionTemplate) \
V(performance_entry_callback, v8::Function) \
V(performance_entry_template, v8::Function) \
V(process_object, v8::Object) \
V(promise_handler_function, v8::Function) \
V(promise_wrap_template, v8::ObjectTemplate) \
V(push_values_to_array_function, v8::Function) \
V(sab_lifetimepartner_constructor_template, v8::FunctionTemplate) \
V(script_context_constructor_template, v8::FunctionTemplate) \
V(script_data_constructor_function, v8::Function) \
V(secure_context_constructor_template, v8::FunctionTemplate) \
V(shutdown_wrap_template, v8::ObjectTemplate) \
V(tcp_constructor_template, v8::FunctionTemplate) \
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(tty_constructor_template, v8::FunctionTemplate) \
V(udp_constructor_function, v8::Function) \
V(url_constructor_function, v8::Function) \
V(write_wrap_template, v8::ObjectTemplate)
class Environment;
class IsolateData {
public:
IsolateData(v8::Isolate* isolate, uv_loop_t* event_loop,
MultiIsolatePlatform* platform = nullptr,
uint32_t* zero_fill_field = nullptr);
~IsolateData();
inline uv_loop_t* event_loop() const;
inline uint32_t* zero_fill_field() const;
inline MultiIsolatePlatform* platform() const;
inline std::shared_ptr<PerIsolateOptions> options();
#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 VS
#undef VP
std::unordered_map<nghttp2_rcbuf*, v8::Eternal<v8::String>> http2_static_strs;
inline v8::Isolate* isolate() const;
private:
#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 VS
#undef VP
v8::Isolate* const isolate_;
uv_loop_t* const event_loop_;
uint32_t* const zero_fill_field_;
MultiIsolatePlatform* platform_;
std::shared_ptr<PerIsolateOptions> options_;
DISALLOW_COPY_AND_ASSIGN(IsolateData);
};
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)
enum class DebugCategory {
#define V(name) name,
DEBUG_CATEGORY_NAMES(V)
#undef V
CATEGORY_COUNT
};
class Environment {
public:
class AsyncHooks {
public:
// 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 AliasedBuffer<uint32_t, v8::Uint32Array>& fields();
inline AliasedBuffer<double, v8::Float64Array>& async_id_fields();
inline AliasedBuffer<double, v8::Float64Array>& 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.
// 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();
private:
AliasedBuffer<double, v8::Float64Array> async_id_fields_ref_;
double old_default_trigger_async_id_;
DISALLOW_COPY_AND_ASSIGN(DefaultTriggerAsyncIdScope);
};
private:
friend class Environment; // So we can call the constructor.
inline AsyncHooks();
// Keep a list of all Persistent strings used for Provider types.
v8::Eternal<v8::String> providers_[AsyncWrap::PROVIDERS_LENGTH];
// Keep track of the environment copy itself.
Environment* env_;
// Stores the ids of the current execution context stack.
AliasedBuffer<double, v8::Float64Array> async_ids_stack_;
// Attached to a Uint32Array that tracks the number of active hooks for
// each type.
AliasedBuffer<uint32_t, v8::Uint32Array> fields_;
// Attached to a Float64Array that tracks the state of async resources.
AliasedBuffer<double, v8::Float64Array> async_id_fields_;
void grow_async_ids_stack();
DISALLOW_COPY_AND_ASSIGN(AsyncHooks);
};
class AsyncCallbackScope {
public:
AsyncCallbackScope() = delete;
explicit AsyncCallbackScope(Environment* env);
~AsyncCallbackScope();
private:
Environment* env_;
DISALLOW_COPY_AND_ASSIGN(AsyncCallbackScope);
};
inline size_t makecallback_depth() const;
class ImmediateInfo {
public:
inline AliasedBuffer<uint32_t, v8::Uint32Array>& 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);
private:
friend class Environment; // So we can call the constructor.
inline explicit ImmediateInfo(v8::Isolate* isolate);
enum Fields {
kCount,
kRefCount,
kHasOutstanding,
kFieldsCount
};
AliasedBuffer<uint32_t, v8::Uint32Array> fields_;
DISALLOW_COPY_AND_ASSIGN(ImmediateInfo);
};
class TickInfo {
public:
inline AliasedBuffer<uint8_t, v8::Uint8Array>& fields();
inline bool has_scheduled() const;
inline bool has_promise_rejections() const;
inline void promise_rejections_toggle_on();
private:
friend class Environment; // So we can call the constructor.
inline explicit TickInfo(v8::Isolate* isolate);
enum Fields {
kHasScheduled,
kHasPromiseRejections,
kFieldsCount
};
AliasedBuffer<uint8_t, v8::Uint8Array> fields_;
DISALLOW_COPY_AND_ASSIGN(TickInfo);
};
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 uv_key_t thread_local_env;
static inline Environment* GetThreadLocalEnv();
Environment(IsolateData* isolate_data,
v8::Local<v8::Context> context,
tracing::AgentWriterHandle* tracing_agent_writer);
~Environment();
void Start(const std::vector<std::string>& args,
const std::vector<std::string>& exec_args,
bool start_profiler_idle_notifier);
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);
// 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 tracing::AgentWriterHandle* tracing_agent_writer() const;
inline uv_loop_t* event_loop() const;
inline uint32_t watched_providers() const;
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 IsolateData* isolate_data() const;
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 AliasedBuffer<uint32_t, v8::Uint32Array>&
should_abort_on_uncaught_toggle();
inline AliasedBuffer<uint8_t, v8::Uint8Array>& trace_category_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::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;
inline uint32_t get_next_module_id();
inline uint32_t get_next_script_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 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 AliasedBuffer<double, v8::Float64Array>* fs_stats_field_array();
inline AliasedBuffer<uint64_t, v8::BigUint64Array>*
fs_stats_field_bigint_array();
// stat fields contains twice the number of entries because `fs.StatWatcher`
// needs room to store data for *two* `fs.Stats` instances.
static const int kFsStatsFieldsLength = 14;
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 CollectExceptionInfo(v8::Local<v8::Value> context,
int errorno,
const char* syscall = nullptr,
const char* message = nullptr,
const char* path = nullptr);
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 is_main_thread() const;
inline uint64_t thread_id() const;
inline void set_thread_id(uint64_t id);
inline worker::Worker* worker_context() 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_worker() 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);
inline void SetTemplateMethod(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);
inline void SetTemplateMethodNoSideEffect(
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();
// 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_PROPERTIES(V)
#undef V
#if HAVE_INSPECTOR
inline inspector::Agent* inspector_agent() const {
return inspector_agent_.get();
}
#endif
typedef ListHead<HandleWrap, &HandleWrap::handle_wrap_queue_> HandleWrapQueue;
typedef ListHead<ReqWrap<uv_req_t>, &ReqWrap<uv_req_t>::req_wrap_queue_>
ReqWrapQueue;
inline HandleWrapQueue* handle_wrap_queue() { return &handle_wrap_queue_; }
inline ReqWrapQueue* req_wrap_queue() { return &req_wrap_queue_; }
void AddPromiseHook(promise_hook_func fn, void* arg);
bool RemovePromiseHook(promise_hook_func fn, void* arg);
inline bool EmitProcessEnvWarning() {
bool current_value = emit_env_nonstring_warning_;
emit_env_nonstring_warning_ = false;
return current_value;
}
typedef void (*native_immediate_callback)(Environment* env, void* data);
// cb will be called as cb(env, data) on the next event loop iteration.
// obj will be kept alive between now and after the callback has run.
inline void SetImmediate(native_immediate_callback cb,
void* data,
v8::Local<v8::Object> obj = v8::Local<v8::Object>());
inline void SetUnrefImmediate(native_immediate_callback cb,
void* data,
v8::Local<v8::Object> obj =
v8::Local<v8::Object>());
// This needs to be available for the JS-land setImmediate().
void ToggleImmediateRef(bool ref);
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();
private:
Environment* env_;
};
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();
private:
inline void CreateImmediate(native_immediate_callback cb,
void* data,
v8::Local<v8::Object> obj,
bool ref);
inline void ThrowError(v8::Local<v8::Value> (*fun)(v8::Local<v8::String>),
const char* errmsg);
v8::Isolate* const isolate_;
IsolateData* const isolate_data_;
tracing::AgentWriterHandle* const tracing_agent_writer_;
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_;
bool printed_error_;
bool abort_on_uncaught_exception_;
bool emit_env_nonstring_warning_;
size_t makecallback_cntr_;
std::vector<double> destroy_async_id_list_;
std::shared_ptr<EnvironmentOptions> options_;
uint32_t module_id_counter_ = 0;
uint32_t script_id_counter_ = 0;
AliasedBuffer<uint32_t, v8::Uint32Array> should_abort_on_uncaught_toggle_;
int should_not_abort_scope_counter_ = 0;
// Attached to a Uint8Array that tracks the state of trace category
AliasedBuffer<uint8_t, v8::Uint8Array> trace_category_state_;
std::unique_ptr<TrackingTraceStateObserver> trace_state_observer_;
std::unique_ptr<performance::performance_state> performance_state_;
std::unordered_map<std::string, uint64_t> performance_marks_;
bool can_call_into_js_ = true;
uint64_t thread_id_ = 0;
std::unordered_set<worker::Worker*> sub_worker_contexts_;
static void* kNodeContextTagPtr;
static int const kNodeContextTag;
#if HAVE_INSPECTOR
std::unique_ptr<inspector::Agent> inspector_agent_;
#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;
char* http_parser_buffer_;
bool http_parser_buffer_in_use_ = false;
std::unique_ptr<http2::Http2State> http2_state_;
bool debug_enabled_[static_cast<int>(DebugCategory::CATEGORY_COUNT)] = {0};
AliasedBuffer<double, v8::Float64Array> fs_stats_field_array_;
AliasedBuffer<uint64_t, v8::BigUint64Array> fs_stats_field_bigint_array_;
std::vector<std::unique_ptr<fs::FileHandleReadWrap>>
file_handle_read_wrap_freelist_;
worker::Worker* worker_context_ = nullptr;
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_;