Skip to content
Navigation Menu
{{ message }}
forked from nodejs/node-v0.x-archive
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathnode.cc
More file actions
2011 lines (1552 loc) · 48.9 KB
/
Copy pathnode.cc
File metadata and controls
2011 lines (1552 loc) · 48.9 KB
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 2009 Ryan Dahl <ry@tinyclouds.org>
#include <node.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <string.h>
#include <limits.h> /* PATH_MAX */
#include <assert.h>
#include <unistd.h>
#include <errno.h>
#include <dlfcn.h> /* dlopen(), dlsym() */
#include <sys/types.h>
#include <unistd.h> /* setuid, getuid */
#include <pwd.h> /* getpwnam() */
#include <grp.h> /* getgrnam() */
#include "platform.h"
#include <node_buffer.h>
#include <node_io_watcher.h>
#include <node_net.h>
#include <node_events.h>
#include <node_cares.h>
#include <node_file.h>
#if 0
// not in use
# include <node_idle_watcher.h>
#endif
#include <node_http_parser.h>
#include <node_signal_watcher.h>
#include <node_stat_watcher.h>
#include <node_timer.h>
#include <node_child_process.h>
#include <node_constants.h>
#include <node_stdio.h>
#include <node_javascript.h>
#include <node_version.h>
#ifdef HAVE_OPENSSL
#include <node_crypto.h>
#endif
#include <node_script.h>
#include <v8-debug.h>
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
using namespace v8;
# ifdef __APPLE__
# include <crt_externs.h>
# define environ (*_NSGetEnviron())
# else
extern char **environ;
# endif
namespace node {
static Persistent<Object> process;
static Persistent<String> errno_symbol;
static Persistent<String> syscall_symbol;
static Persistent<String> errpath_symbol;
static Persistent<String> rss_symbol;
static Persistent<String> vsize_symbol;
static Persistent<String> heap_total_symbol;
static Persistent<String> heap_used_symbol;
static Persistent<String> listeners_symbol;
static Persistent<String> uncaught_exception_symbol;
static Persistent<String> emit_symbol;
static char *eval_string = NULL;
static int option_end_index = 0;
static bool use_debug_agent = false;
static bool debug_wait_connect = false;
static int debug_port=5858;
static int max_stack_size = 0;
static ev_check check_tick_watcher;
static ev_prepare prepare_tick_watcher;
static bool need_tick_cb;
static Persistent<String> tick_callback_sym;
static ev_async eio_want_poll_notifier;
static ev_async eio_done_poll_notifier;
static ev_idle eio_poller;
// Buffer for getpwnam_r(), getgrpam_r() and other misc callers; keep this
// scoped at file-level rather than method-level to avoid excess stack usage.
static char getbuf[PATH_MAX + 1];
// We need to notify V8 when we're idle so that it can run the garbage
// collector. The interface to this is V8::IdleNotification(). It returns
// true if the heap hasn't be fully compacted, and needs to be run again.
// Returning false means that it doesn't have anymore work to do.
//
// A rather convoluted algorithm has been devised to determine when Node is
// idle. You'll have to figure it out for yourself.
static ev_check gc_check;
static ev_idle gc_idle;
static ev_timer gc_timer;
bool need_gc;
#define FAST_TICK 0.7
#define GC_WAIT_TIME 5.
#define RPM_SAMPLES 100
#define TICK_TIME(n) tick_times[(tick_time_head - (n)) % RPM_SAMPLES]
static ev_tstamp tick_times[RPM_SAMPLES];
static int tick_time_head;
static void StartGCTimer () {
if (!ev_is_active(&gc_timer)) {
ev_timer_start(EV_DEFAULT_UC_ &gc_timer);
ev_unref(EV_DEFAULT_UC);
}
}
static void StopGCTimer () {
if (ev_is_active(&gc_timer)) {
ev_ref(EV_DEFAULT_UC);
ev_timer_stop(EV_DEFAULT_UC_ &gc_timer);
}
}
static void Idle(EV_P_ ev_idle *watcher, int revents) {
assert(watcher == &gc_idle);
assert(revents == EV_IDLE);
//fprintf(stderr, "idle\n");
if (V8::IdleNotification()) {
ev_idle_stop(EV_A_ watcher);
StopGCTimer();
}
}
// Called directly after every call to select() (or epoll, or whatever)
static void Check(EV_P_ ev_check *watcher, int revents) {
assert(watcher == &gc_check);
assert(revents == EV_CHECK);
tick_times[tick_time_head] = ev_now(EV_DEFAULT_UC);
tick_time_head = (tick_time_head + 1) % RPM_SAMPLES;
StartGCTimer();
for (int i = 0; i < (int)(GC_WAIT_TIME/FAST_TICK); i++) {
double d = TICK_TIME(i+1) - TICK_TIME(i+2);
//printf("d = %f\n", d);
// If in the last 5 ticks the difference between
// ticks was less than 0.7 seconds, then continue.
if (d < FAST_TICK) {
//printf("---\n");
return;
}
}
// Otherwise start the gc!
//fprintf(stderr, "start idle 2\n");
ev_idle_start(EV_A_ &gc_idle);
}
static Handle<Value> NeedTickCallback(const Arguments& args) {
HandleScope scope;
need_tick_cb = true;
return Undefined();
}
static void Tick(void) {
// Avoid entering a V8 scope.
if (!need_tick_cb) return;
need_tick_cb = false;
HandleScope scope;
if (tick_callback_sym.IsEmpty()) {
// Lazily set the symbol
tick_callback_sym =
Persistent<String>::New(String::NewSymbol("_tickCallback"));
}
Local<Value> cb_v = process->Get(tick_callback_sym);
if (!cb_v->IsFunction()) return;
Local<Function> cb = Local<Function>::Cast(cb_v);
TryCatch try_catch;
cb->Call(process, 0, NULL);
if (try_catch.HasCaught()) {
FatalException(try_catch);
}
}
static void PrepareTick(EV_P_ ev_prepare *watcher, int revents) {
assert(watcher == &prepare_tick_watcher);
assert(revents == EV_PREPARE);
Tick();
}
static void CheckTick(EV_P_ ev_check *watcher, int revents) {
assert(watcher == &check_tick_watcher);
assert(revents == EV_CHECK);
Tick();
}
static void DoPoll(EV_P_ ev_idle *watcher, int revents) {
assert(watcher == &eio_poller);
assert(revents == EV_IDLE);
//printf("eio_poller\n");
if (eio_poll() != -1) {
//printf("eio_poller stop\n");
ev_idle_stop(EV_DEFAULT_UC_ watcher);
}
}
// Called from the main thread.
static void WantPollNotifier(EV_P_ ev_async *watcher, int revents) {
assert(watcher == &eio_want_poll_notifier);
assert(revents == EV_ASYNC);
//printf("want poll notifier\n");
if (eio_poll() == -1) {
//printf("eio_poller start\n");
ev_idle_start(EV_DEFAULT_UC_ &eio_poller);
}
}
static void DonePollNotifier(EV_P_ ev_async *watcher, int revents) {
assert(watcher == &eio_done_poll_notifier);
assert(revents == EV_ASYNC);
//printf("done poll notifier\n");
if (eio_poll() != -1) {
//printf("eio_poller stop\n");
ev_idle_stop(EV_DEFAULT_UC_ &eio_poller);
}
}
// EIOWantPoll() is called from the EIO thread pool each time an EIO
// request (that is, one of the node.fs.* functions) has completed.
static void EIOWantPoll(void) {
// Signal the main thread that eio_poll need to be processed.
ev_async_send(EV_DEFAULT_UC_ &eio_want_poll_notifier);
}
static void EIODonePoll(void) {
// Signal the main thread that we should stop calling eio_poll().
// from the idle watcher.
ev_async_send(EV_DEFAULT_UC_ &eio_done_poll_notifier);
}
static inline const char *errno_string(int errorno) {
#define ERRNO_CASE(e) case e: return #e;
switch (errorno) {
#ifdef EACCES
ERRNO_CASE(EACCES);
#endif
#ifdef EADDRINUSE
ERRNO_CASE(EADDRINUSE);
#endif
#ifdef EADDRNOTAVAIL
ERRNO_CASE(EADDRNOTAVAIL);
#endif
#ifdef EAFNOSUPPORT
ERRNO_CASE(EAFNOSUPPORT);
#endif
#ifdef EAGAIN
ERRNO_CASE(EAGAIN);
#endif
#ifdef EWOULDBLOCK
# if EAGAIN != EWOULDBLOCK
ERRNO_CASE(EWOULDBLOCK);
# endif
#endif
#ifdef EALREADY
ERRNO_CASE(EALREADY);
#endif
#ifdef EBADF
ERRNO_CASE(EBADF);
#endif
#ifdef EBADMSG
ERRNO_CASE(EBADMSG);
#endif
#ifdef EBUSY
ERRNO_CASE(EBUSY);
#endif
#ifdef ECANCELED
ERRNO_CASE(ECANCELED);
#endif
#ifdef ECHILD
ERRNO_CASE(ECHILD);
#endif
#ifdef ECONNABORTED
ERRNO_CASE(ECONNABORTED);
#endif
#ifdef ECONNREFUSED
ERRNO_CASE(ECONNREFUSED);
#endif
#ifdef ECONNRESET
ERRNO_CASE(ECONNRESET);
#endif
#ifdef EDEADLK
ERRNO_CASE(EDEADLK);
#endif
#ifdef EDESTADDRREQ
ERRNO_CASE(EDESTADDRREQ);
#endif
#ifdef EDOM
ERRNO_CASE(EDOM);
#endif
#ifdef EDQUOT
ERRNO_CASE(EDQUOT);
#endif
#ifdef EEXIST
ERRNO_CASE(EEXIST);
#endif
#ifdef EFAULT
ERRNO_CASE(EFAULT);
#endif
#ifdef EFBIG
ERRNO_CASE(EFBIG);
#endif
#ifdef EHOSTUNREACH
ERRNO_CASE(EHOSTUNREACH);
#endif
#ifdef EIDRM
ERRNO_CASE(EIDRM);
#endif
#ifdef EILSEQ
ERRNO_CASE(EILSEQ);
#endif
#ifdef EINPROGRESS
ERRNO_CASE(EINPROGRESS);
#endif
#ifdef EINTR
ERRNO_CASE(EINTR);
#endif
#ifdef EINVAL
ERRNO_CASE(EINVAL);
#endif
#ifdef EIO
ERRNO_CASE(EIO);
#endif
#ifdef EISCONN
ERRNO_CASE(EISCONN);
#endif
#ifdef EISDIR
ERRNO_CASE(EISDIR);
#endif
#ifdef ELOOP
ERRNO_CASE(ELOOP);
#endif
#ifdef EMFILE
ERRNO_CASE(EMFILE);
#endif
#ifdef EMLINK
ERRNO_CASE(EMLINK);
#endif
#ifdef EMSGSIZE
ERRNO_CASE(EMSGSIZE);
#endif
#ifdef EMULTIHOP
ERRNO_CASE(EMULTIHOP);
#endif
#ifdef ENAMETOOLONG
ERRNO_CASE(ENAMETOOLONG);
#endif
#ifdef ENETDOWN
ERRNO_CASE(ENETDOWN);
#endif
#ifdef ENETRESET
ERRNO_CASE(ENETRESET);
#endif
#ifdef ENETUNREACH
ERRNO_CASE(ENETUNREACH);
#endif
#ifdef ENFILE
ERRNO_CASE(ENFILE);
#endif
#ifdef ENOBUFS
ERRNO_CASE(ENOBUFS);
#endif
#ifdef ENODATA
ERRNO_CASE(ENODATA);
#endif
#ifdef ENODEV
ERRNO_CASE(ENODEV);
#endif
#ifdef ENOENT
ERRNO_CASE(ENOENT);
#endif
#ifdef ENOEXEC
ERRNO_CASE(ENOEXEC);
#endif
#ifdef ENOLINK
ERRNO_CASE(ENOLINK);
#endif
#ifdef ENOLCK
# if ENOLINK != ENOLCK
ERRNO_CASE(ENOLCK);
# endif
#endif
#ifdef ENOMEM
ERRNO_CASE(ENOMEM);
#endif
#ifdef ENOMSG
ERRNO_CASE(ENOMSG);
#endif
#ifdef ENOPROTOOPT
ERRNO_CASE(ENOPROTOOPT);
#endif
#ifdef ENOSPC
ERRNO_CASE(ENOSPC);
#endif
#ifdef ENOSR
ERRNO_CASE(ENOSR);
#endif
#ifdef ENOSTR
ERRNO_CASE(ENOSTR);
#endif
#ifdef ENOSYS
ERRNO_CASE(ENOSYS);
#endif
#ifdef ENOTCONN
ERRNO_CASE(ENOTCONN);
#endif
#ifdef ENOTDIR
ERRNO_CASE(ENOTDIR);
#endif
#ifdef ENOTEMPTY
ERRNO_CASE(ENOTEMPTY);
#endif
#ifdef ENOTSOCK
ERRNO_CASE(ENOTSOCK);
#endif
#ifdef ENOTSUP
ERRNO_CASE(ENOTSUP);
#else
# ifdef EOPNOTSUPP
ERRNO_CASE(EOPNOTSUPP);
# endif
#endif
#ifdef ENOTTY
ERRNO_CASE(ENOTTY);
#endif
#ifdef ENXIO
ERRNO_CASE(ENXIO);
#endif
#ifdef EOVERFLOW
ERRNO_CASE(EOVERFLOW);
#endif
#ifdef EPERM
ERRNO_CASE(EPERM);
#endif
#ifdef EPIPE
ERRNO_CASE(EPIPE);
#endif
#ifdef EPROTO
ERRNO_CASE(EPROTO);
#endif
#ifdef EPROTONOSUPPORT
ERRNO_CASE(EPROTONOSUPPORT);
#endif
#ifdef EPROTOTYPE
ERRNO_CASE(EPROTOTYPE);
#endif
#ifdef ERANGE
ERRNO_CASE(ERANGE);
#endif
#ifdef EROFS
ERRNO_CASE(EROFS);
#endif
#ifdef ESPIPE
ERRNO_CASE(ESPIPE);
#endif
#ifdef ESRCH
ERRNO_CASE(ESRCH);
#endif
#ifdef ESTALE
ERRNO_CASE(ESTALE);
#endif
#ifdef ETIME
ERRNO_CASE(ETIME);
#endif
#ifdef ETIMEDOUT
ERRNO_CASE(ETIMEDOUT);
#endif
#ifdef ETXTBSY
ERRNO_CASE(ETXTBSY);
#endif
#ifdef EXDEV
ERRNO_CASE(EXDEV);
#endif
default: return "";
}
}
const char *signo_string(int signo) {
#define SIGNO_CASE(e) case e: return #e;
switch (signo) {
#ifdef SIGHUP
SIGNO_CASE(SIGHUP);
#endif
#ifdef SIGINT
SIGNO_CASE(SIGINT);
#endif
#ifdef SIGQUIT
SIGNO_CASE(SIGQUIT);
#endif
#ifdef SIGILL
SIGNO_CASE(SIGILL);
#endif
#ifdef SIGTRAP
SIGNO_CASE(SIGTRAP);
#endif
#ifdef SIGABRT
SIGNO_CASE(SIGABRT);
#endif
#ifdef SIGIOT
# if SIGABRT != SIGIOT
SIGNO_CASE(SIGIOT);
# endif
#endif
#ifdef SIGBUS
SIGNO_CASE(SIGBUS);
#endif
#ifdef SIGFPE
SIGNO_CASE(SIGFPE);
#endif
#ifdef SIGKILL
SIGNO_CASE(SIGKILL);
#endif
#ifdef SIGUSR1
SIGNO_CASE(SIGUSR1);
#endif
#ifdef SIGSEGV
SIGNO_CASE(SIGSEGV);
#endif
#ifdef SIGUSR2
SIGNO_CASE(SIGUSR2);
#endif
#ifdef SIGPIPE
SIGNO_CASE(SIGPIPE);
#endif
#ifdef SIGALRM
SIGNO_CASE(SIGALRM);
#endif
SIGNO_CASE(SIGTERM);
SIGNO_CASE(SIGCHLD);
#ifdef SIGSTKFLT
SIGNO_CASE(SIGSTKFLT);
#endif
#ifdef SIGCONT
SIGNO_CASE(SIGCONT);
#endif
#ifdef SIGSTOP
SIGNO_CASE(SIGSTOP);
#endif
#ifdef SIGTSTP
SIGNO_CASE(SIGTSTP);
#endif
#ifdef SIGTTIN
SIGNO_CASE(SIGTTIN);
#endif
#ifdef SIGTTOU
SIGNO_CASE(SIGTTOU);
#endif
#ifdef SIGURG
SIGNO_CASE(SIGURG);
#endif
#ifdef SIGXCPU
SIGNO_CASE(SIGXCPU);
#endif
#ifdef SIGXFSZ
SIGNO_CASE(SIGXFSZ);
#endif
#ifdef SIGVTALRM
SIGNO_CASE(SIGVTALRM);
#endif
#ifdef SIGPROF
SIGNO_CASE(SIGPROF);
#endif
#ifdef SIGWINCH
SIGNO_CASE(SIGWINCH);
#endif
#ifdef SIGIO
SIGNO_CASE(SIGIO);
#endif
#ifdef SIGPOLL
# if SIGPOLL != SIGIO
SIGNO_CASE(SIGPOLL);
# endif
#endif
#ifdef SIGLOST
SIGNO_CASE(SIGLOST);
#endif
#ifdef SIGPWR
# if SIGPWR != SIGLOST
SIGNO_CASE(SIGPWR);
# endif
#endif
#ifdef SIGSYS
SIGNO_CASE(SIGSYS);
#endif
default: return "";
}
}
Local<Value> ErrnoException(int errorno,
const char *syscall,
const char *msg,
const char *path) {
Local<Value> e;
Local<String> estring = String::NewSymbol(errno_string(errorno));
if (!msg[0]) msg = strerror(errorno);
Local<String> message = String::NewSymbol(msg);
Local<String> cons1 = String::Concat(estring, String::NewSymbol(", "));
Local<String> cons2 = String::Concat(cons1, message);
if (errno_symbol.IsEmpty()) {
syscall_symbol = NODE_PSYMBOL("syscall");
errno_symbol = NODE_PSYMBOL("errno");
errpath_symbol = NODE_PSYMBOL("path");
}
if (path) {
Local<String> cons3 = String::Concat(cons2, String::NewSymbol(" '"));
Local<String> cons4 = String::Concat(cons3, String::New(path));
Local<String> cons5 = String::Concat(cons4, String::NewSymbol("'"));
e = Exception::Error(cons5);
} else {
e = Exception::Error(cons2);
}
Local<Object> obj = e->ToObject();
obj->Set(errno_symbol, Integer::New(errorno));
if (path) obj->Set(errpath_symbol, String::New(path));
if (syscall) obj->Set(syscall_symbol, String::NewSymbol(syscall));
return e;
}
Handle<Value> FromConstructorTemplate(Persistent<FunctionTemplate>& t,
const Arguments& args) {
HandleScope scope;
const int argc = args.Length();
Local<Value>* argv = new Local<Value>[argc];
for (int i = 0; i < argc; ++i) {
argv[i] = args[i];
}
Local<Object> instance = t->GetFunction()->NewInstance(argc, argv);
delete[] argv;
return scope.Close(instance);
}
enum encoding ParseEncoding(Handle<Value> encoding_v, enum encoding _default) {
HandleScope scope;
if (!encoding_v->IsString()) return _default;
String::Utf8Value encoding(encoding_v->ToString());
if (strcasecmp(*encoding, "utf8") == 0) {
return UTF8;
} else if (strcasecmp(*encoding, "utf-8") == 0) {
return UTF8;
} else if (strcasecmp(*encoding, "ascii") == 0) {
return ASCII;
} else if (strcasecmp(*encoding, "base64") == 0) {
return BASE64;
} else if (strcasecmp(*encoding, "binary") == 0) {
return BINARY;
} else if (strcasecmp(*encoding, "raw") == 0) {
fprintf(stderr, "'raw' (array of integers) has been removed. "
"Use 'binary'.\n");
return BINARY;
} else if (strcasecmp(*encoding, "raws") == 0) {
fprintf(stderr, "'raws' encoding has been renamed to 'binary'. "
"Please update your code.\n");
return BINARY;
} else {
return _default;
}
}
Local<Value> Encode(const void *buf, size_t len, enum encoding encoding) {
HandleScope scope;
if (!len) return scope.Close(String::Empty());
if (encoding == BINARY) {
const unsigned char *cbuf = static_cast<const unsigned char*>(buf);
uint16_t * twobytebuf = new uint16_t[len];
for (size_t i = 0; i < len; i++) {
// XXX is the following line platform independent?
twobytebuf[i] = cbuf[i];
}
Local<String> chunk = String::New(twobytebuf, len);
delete [] twobytebuf; // TODO use ExternalTwoByteString?
return scope.Close(chunk);
}
// utf8 or ascii encoding
Local<String> chunk = String::New((const char*)buf, len);
return scope.Close(chunk);
}
// Returns -1 if the handle was not valid for decoding
ssize_t DecodeBytes(v8::Handle<v8::Value> val, enum encoding encoding) {
HandleScope scope;
if (val->IsArray()) {
fprintf(stderr, "'raw' encoding (array of integers) has been removed. "
"Use 'binary'.\n");
assert(0);
return -1;
}
Local<String> str = val->ToString();
if (encoding == UTF8) return str->Utf8Length();
return str->Length();
}
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
// Returns number of bytes written.
ssize_t DecodeWrite(char *buf,
size_t buflen,
v8::Handle<v8::Value> val,
enum encoding encoding) {
HandleScope scope;
// XXX
// A lot of improvement can be made here. See:
// http://code.google.com/p/v8/issues/detail?id=270
// http://groups.google.com/group/v8-dev/browse_thread/thread/dba28a81d9215291/ece2b50a3b4022c
// http://groups.google.com/group/v8-users/browse_thread/thread/1f83b0ba1f0a611
if (val->IsArray()) {
fprintf(stderr, "'raw' encoding (array of integers) has been removed. "
"Use 'binary'.\n");
assert(0);
return -1;
}
Local<String> str = val->ToString();
if (encoding == UTF8) {
str->WriteUtf8(buf, buflen, NULL, String::HINT_MANY_WRITES_EXPECTED);
return buflen;
}
if (encoding == ASCII) {
str->WriteAscii(buf, 0, buflen, String::HINT_MANY_WRITES_EXPECTED);
return buflen;
}
// THIS IS AWFUL!!! FIXME
assert(encoding == BINARY);
uint16_t * twobytebuf = new uint16_t[buflen];
str->Write(twobytebuf, 0, buflen, String::HINT_MANY_WRITES_EXPECTED);
for (size_t i = 0; i < buflen; i++) {
unsigned char *b = reinterpret_cast<unsigned char*>(&twobytebuf[i]);
assert(b[1] == 0);
buf[i] = b[0];
}
delete [] twobytebuf;
return buflen;
}
void DisplayExceptionLine (TryCatch &try_catch) {
HandleScope scope;
Handle<Message> message = try_catch.Message();
node::Stdio::DisableRawMode(STDIN_FILENO);
fprintf(stderr, "\n");
if (!message.IsEmpty()) {
// Print (filename):(line number): (message).
String::Utf8Value filename(message->GetScriptResourceName());
const char* filename_string = *filename;
int linenum = message->GetLineNumber();
fprintf(stderr, "%s:%i\n", filename_string, linenum);
// Print line of source code.
String::Utf8Value sourceline(message->GetSourceLine());
const char* sourceline_string = *sourceline;
// HACK HACK HACK
//
// FIXME
//
// Because of how CommonJS modules work, all scripts are wrapped with a
// "function (function (exports, __filename, ...) {"
// to provide script local variables.
//
// When reporting errors on the first line of a script, this wrapper
// function is leaked to the user. This HACK is to remove it. The length
// of the wrapper is 62. That wrapper is defined in src/node.js
//
// If that wrapper is ever changed, then this number also has to be
// updated. Or - someone could clean this up so that the two peices
// don't need to be changed.
//
// Even better would be to get support into V8 for wrappers that
// shouldn't be reported to users.
int offset = linenum == 1 ? 62 : 0;
fprintf(stderr, "%s\n", sourceline_string + offset);
// Print wavy underline (GetUnderline is deprecated).
int start = message->GetStartColumn();
for (int i = offset; i < start; i++) {
fprintf(stderr, " ");
}
int end = message->GetEndColumn();
for (int i = start; i < end; i++) {
fprintf(stderr, "^");
}
fprintf(stderr, "\n");
}
}
static void ReportException(TryCatch &try_catch, bool show_line) {
HandleScope scope;
Handle<Message> message = try_catch.Message();
if (show_line) DisplayExceptionLine(try_catch);
String::Utf8Value trace(try_catch.StackTrace());
if (trace.length() > 0) {
fprintf(stderr, "%s\n", *trace);
} else {
// this really only happens for RangeErrors, since they're the only
// kind that won't have all this info in the trace.
Local<Value> er = try_catch.Exception();
String::Utf8Value msg(!er->IsObject() ? er->ToString()
: er->ToObject()->Get(String::New("message"))->ToString());
fprintf(stderr, "%s\n", *msg);
}
You can’t perform that action at this time.