ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.100 by root, Fri Jun 1 06:00:40 2007 UTC vs.
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC

… …
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8 8
9#include "autoconf/config.h"
10
11#include <stddef.h> 9#include <stddef.h>
12#include <stdlib.h> 10#include <stdlib.h>
13#include <errno.h> 11#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 12#include <sys/types.h>
17#include <sys/stat.h> 13#include <sys/stat.h>
18#include <limits.h> 14#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 15#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 16#include <sched.h>
17
18#ifdef _WIN32
19
20# define SIGIO 0
21 typedef Direntry_t X_DIRENT;
22#undef malloc
23#undef free
24
25// perl overrides all those nice win32 functions
26# undef open
27# undef read
28# undef write
29# undef send
30# undef recv
31# undef stat
32# undef fstat
33# define lstat stat
34# undef truncate
35# undef ftruncate
36# undef open
37# undef close
38# undef unlink
39# undef rmdir
40# undef rename
41# undef lseek
42
43# define chown(a,b,c) (errno = ENOSYS, -1)
44# define fchown(a,b,c) (errno = ENOSYS, -1)
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56
57#else
58
59# include "autoconf/config.h"
60# include <sys/time.h>
61# include <sys/select.h>
62# include <unistd.h>
23#include <utime.h> 63# include <utime.h>
64# include <signal.h>
65 typedef struct dirent X_DIRENT;
66
67#endif
24 68
25#if HAVE_SENDFILE 69#if HAVE_SENDFILE
26# if __linux 70# if __linux
27# include <sys/sendfile.h> 71# include <sys/sendfile.h>
28# elif __freebsd 72# elif __freebsd
… …
46#endif 90#endif
47 91
48/* buffer size for various temporary buffers */ 92/* buffer size for various temporary buffers */
49#define AIO_BUFSIZE 65536 93#define AIO_BUFSIZE 65536
50 94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif
101
51#define dBUF \ 102#define dBUF \
52 char *aio_buf; \ 103 char *aio_buf; \
53 LOCK (wrklock); \ 104 X_LOCK (wrklock); \
54 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
55 UNLOCK (wrklock); \ 106 X_UNLOCK (wrklock); \
56 if (!aio_buf) \ 107 if (!aio_buf) \
57 return -1; 108 return -1;
58 109
59typedef SV SV8; /* byte-sv, used for argument-checking */ 110typedef SV SV8; /* byte-sv, used for argument-checking */
60 111
61enum { 112enum {
62 REQ_QUIT, 113 REQ_QUIT,
63 REQ_OPEN, REQ_CLOSE, 114 REQ_OPEN, REQ_CLOSE,
64 REQ_READ, REQ_WRITE, REQ_READAHEAD, 115 REQ_READ, REQ_WRITE,
65 REQ_SENDFILE, 116 REQ_READAHEAD, REQ_SENDFILE,
66 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
67 REQ_UTIME, REQ_FUTIME, /* must be consecutive */ 118 REQ_TRUNCATE, REQ_FTRUNCATE,
68 REQ_CHMOD, REQ_FCHMOD, /* must be consecutive */ 119 REQ_UTIME, REQ_FUTIME,
69 REQ_CHOWN, REQ_FCHOWN, /* must be consecutive */ 120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
70 REQ_FSYNC, REQ_FDATASYNC, 122 REQ_FSYNC, REQ_FDATASYNC,
71 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, 123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
72 REQ_MKNOD, REQ_READDIR, 124 REQ_MKNOD, REQ_READDIR,
73 REQ_LINK, REQ_SYMLINK, REQ_READLINK, 125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
74 REQ_GROUP, REQ_NOP, 126 REQ_GROUP, REQ_NOP,
… …
170static int next_pri = DEFAULT_PRI + PRI_BIAS; 222static int next_pri = DEFAULT_PRI + PRI_BIAS;
171 223
172static unsigned int started, idle, wanted; 224static unsigned int started, idle, wanted;
173 225
174/* worker threads management */ 226/* worker threads management */
175static mutex_t wrklock = MUTEX_INIT; 227static mutex_t wrklock = X_MUTEX_INIT;
176 228
177typedef struct worker { 229typedef struct worker {
178 /* locked by wrklock */ 230 /* locked by wrklock */
179 struct worker *prev, *next; 231 struct worker *prev, *next;
180 232
… …
212} 264}
213 265
214static volatile unsigned int nreqs, nready, npending; 266static volatile unsigned int nreqs, nready, npending;
215static volatile unsigned int max_idle = 4; 267static volatile unsigned int max_idle = 4;
216static volatile unsigned int max_outstanding = 0xffffffff; 268static volatile unsigned int max_outstanding = 0xffffffff;
217static int respipe [2]; 269static int respipe_osf [2], respipe [2] = { -1, -1 };
218 270
219static mutex_t reslock = MUTEX_INIT; 271static mutex_t reslock = X_MUTEX_INIT;
220static mutex_t reqlock = MUTEX_INIT; 272static mutex_t reqlock = X_MUTEX_INIT;
221static cond_t reqwait = COND_INIT; 273static cond_t reqwait = X_COND_INIT;
222 274
223#if WORDACCESS_UNSAFE 275#if WORDACCESS_UNSAFE
224 276
225static unsigned int get_nready () 277static unsigned int get_nready ()
226{ 278{
227 unsigned int retval; 279 unsigned int retval;
228 280
229 LOCK (reqlock); 281 X_LOCK (reqlock);
230 retval = nready; 282 retval = nready;
231 UNLOCK (reqlock); 283 X_UNLOCK (reqlock);
232 284
233 return retval; 285 return retval;
234} 286}
235 287
236static unsigned int get_npending () 288static unsigned int get_npending ()
237{ 289{
238 unsigned int retval; 290 unsigned int retval;
239 291
240 LOCK (reslock); 292 X_LOCK (reslock);
241 retval = npending; 293 retval = npending;
242 UNLOCK (reslock); 294 X_UNLOCK (reslock);
243 295
244 return retval; 296 return retval;
245} 297}
246 298
247static unsigned int get_nthreads () 299static unsigned int get_nthreads ()
248{ 300{
249 unsigned int retval; 301 unsigned int retval;
250 302
251 LOCK (wrklock); 303 X_LOCK (wrklock);
252 retval = started; 304 retval = started;
253 UNLOCK (wrklock); 305 X_UNLOCK (wrklock);
254 306
255 return retval; 307 return retval;
256} 308}
257 309
258#else 310#else
… …
317 abort (); 369 abort ();
318} 370}
319 371
320static int poll_cb (); 372static int poll_cb ();
321static int req_invoke (aio_req req); 373static int req_invoke (aio_req req);
322static void req_free (aio_req req); 374static void req_destroy (aio_req req);
323static void req_cancel (aio_req req); 375static void req_cancel (aio_req req);
324 376
325/* must be called at most once */ 377/* must be called at most once */
326static SV *req_sv (aio_req req, const char *klass) 378static SV *req_sv (aio_req req, const char *klass)
327{ 379{
… …
393 { 445 {
394 block_sig (); 446 block_sig ();
395 447
396 if (!req_invoke (grp)) 448 if (!req_invoke (grp))
397 { 449 {
398 req_free (grp); 450 req_destroy (grp);
399 unblock_sig (); 451 unblock_sig ();
400 croak (0); 452 croak (0);
401 } 453 }
402 454
403 req_free (grp); 455 req_destroy (grp);
404 unblock_sig (); 456 unblock_sig ();
405 } 457 }
406} 458}
407 459
408static int req_invoke (aio_req req) 460static int req_invoke (aio_req req)
… …
536 } 588 }
537 589
538 return !SvTRUE (ERRSV); 590 return !SvTRUE (ERRSV);
539} 591}
540 592
541static void req_free (aio_req req) 593static void req_destroy (aio_req req)
542{ 594{
543 if (req->self) 595 if (req->self)
544 { 596 {
545 sv_unmagic (req->self, PERL_MAGIC_ext); 597 sv_unmagic (req->self, PERL_MAGIC_ext);
546 SvREFCNT_dec (req->self); 598 SvREFCNT_dec (req->self);
… …
575 req->flags |= FLAG_CANCELLED; 627 req->flags |= FLAG_CANCELLED;
576 628
577 req_cancel_subs (req); 629 req_cancel_subs (req);
578} 630}
579 631
580static void *aio_proc(void *arg); 632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637
638static void
639create_respipe ()
640{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe))
650#endif
651 croak ("unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674}
675
676X_THREAD_PROC (aio_proc);
581 677
582static void start_thread (void) 678static void start_thread (void)
583{ 679{
584 worker *wrk = calloc (1, sizeof (worker)); 680 worker *wrk = calloc (1, sizeof (worker));
585 681
586 if (!wrk) 682 if (!wrk)
587 croak ("unable to allocate worker thread data"); 683 croak ("unable to allocate worker thread data");
588 684
589 LOCK (wrklock); 685 X_LOCK (wrklock);
590 686
591 if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) 687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
592 { 688 {
593 wrk->prev = &wrk_first; 689 wrk->prev = &wrk_first;
594 wrk->next = wrk_first.next; 690 wrk->next = wrk_first.next;
… …
597 ++started; 693 ++started;
598 } 694 }
599 else 695 else
600 free (wrk); 696 free (wrk);
601 697
602 UNLOCK (wrklock); 698 X_UNLOCK (wrklock);
603} 699}
604 700
605static void maybe_start_thread () 701static void maybe_start_thread ()
606{ 702{
607 if (get_nthreads () >= wanted) 703 if (get_nthreads () >= wanted)
… …
618{ 714{
619 block_sig (); 715 block_sig ();
620 716
621 ++nreqs; 717 ++nreqs;
622 718
623 LOCK (reqlock); 719 X_LOCK (reqlock);
624 ++nready; 720 ++nready;
625 reqq_push (&req_queue, req); 721 reqq_push (&req_queue, req);
626 COND_SIGNAL (reqwait); 722 X_COND_SIGNAL (reqwait);
627 UNLOCK (reqlock); 723 X_UNLOCK (reqlock);
628 724
629 unblock_sig (); 725 unblock_sig ();
630 726
631 maybe_start_thread (); 727 maybe_start_thread ();
632} 728}
… …
638 Newz (0, req, 1, aio_cb); 734 Newz (0, req, 1, aio_cb);
639 735
640 req->type = REQ_QUIT; 736 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS; 737 req->pri = PRI_MAX + PRI_BIAS;
642 738
643 LOCK (reqlock); 739 X_LOCK (reqlock);
644 reqq_push (&req_queue, req); 740 reqq_push (&req_queue, req);
645 COND_SIGNAL (reqwait); 741 X_COND_SIGNAL (reqwait);
646 UNLOCK (reqlock); 742 X_UNLOCK (reqlock);
647 743
648 LOCK (wrklock); 744 X_LOCK (wrklock);
649 --started; 745 --started;
650 UNLOCK (wrklock); 746 X_UNLOCK (wrklock);
651} 747}
652 748
653static void set_max_idle (int nthreads) 749static void set_max_idle (int nthreads)
654{ 750{
655 if (WORDACCESS_UNSAFE) LOCK (reqlock); 751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
656 max_idle = nthreads <= 0 ? 1 : nthreads; 752 max_idle = nthreads <= 0 ? 1 : nthreads;
657 if (WORDACCESS_UNSAFE) UNLOCK (reqlock); 753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
658} 754}
659 755
660static void min_parallel (int nthreads) 756static void min_parallel (int nthreads)
661{ 757{
662 if (wanted < nthreads) 758 if (wanted < nthreads)
… …
677 fd_set rfd; 773 fd_set rfd;
678 774
679 while (nreqs) 775 while (nreqs)
680 { 776 {
681 int size; 777 int size;
682 if (WORDACCESS_UNSAFE) LOCK (reslock); 778 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
683 size = res_queue.size; 779 size = res_queue.size;
684 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
685 781
686 if (size) 782 if (size)
687 return; 783 return;
688 784
689 maybe_start_thread (); 785 maybe_start_thread ();
690 786
691 FD_ZERO(&rfd); 787 FD_ZERO (&rfd);
692 FD_SET(respipe [0], &rfd); 788 FD_SET (respipe [0], &rfd);
693 789
694 select (respipe [0] + 1, &rfd, 0, 0, 0); 790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
695 } 791 }
696} 792}
697 793
698static int poll_cb () 794static int poll_cb ()
699{ 795{
… …
713 { 809 {
714 for (;;) 810 for (;;)
715 { 811 {
716 maybe_start_thread (); 812 maybe_start_thread ();
717 813
718 LOCK (reslock); 814 X_LOCK (reslock);
719 req = reqq_shift (&res_queue); 815 req = reqq_shift (&res_queue);
720 816
721 if (req) 817 if (req)
722 { 818 {
723 --npending; 819 --npending;
724 820
725 if (!res_queue.size) 821 if (!res_queue.size)
726 { 822 {
727 /* read any signals sent by the worker threads */ 823 /* read any signals sent by the worker threads */
728 char buf [4]; 824 char buf [4];
729 while (read (respipe [0], buf, 4) == 4) 825 while (respipe_read (respipe [0], buf, 4) == 4)
730 ; 826 ;
731 } 827 }
732 } 828 }
733 829
734 UNLOCK (reslock); 830 X_UNLOCK (reslock);
735 831
736 if (!req) 832 if (!req)
737 break; 833 break;
738 834
739 --nreqs; 835 --nreqs;
… …
745 } 841 }
746 else 842 else
747 { 843 {
748 if (!req_invoke (req)) 844 if (!req_invoke (req))
749 { 845 {
750 req_free (req); 846 req_destroy (req);
751 unblock_sig (); 847 unblock_sig ();
752 croak (0); 848 croak (0);
753 } 849 }
754 850
755 count++; 851 count++;
756 } 852 }
757 853
758 req_free (req); 854 req_destroy (req);
759 855
760 if (maxreqs && !--maxreqs) 856 if (maxreqs && !--maxreqs)
761 break; 857 break;
762 858
763 if (max_poll_time) 859 if (max_poll_time)
… …
777 ++maxreqs; 873 ++maxreqs;
778 } 874 }
779 875
780 unblock_sig (); 876 unblock_sig ();
781 return count; 877 return count;
782}
783
784static void create_pipe ()
785{
786 if (pipe (respipe))
787 croak ("unable to initialize result pipe");
788
789 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791
792 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
793 croak ("cannot set result pipe to nonblocking mode");
794} 878}
795 879
796/*****************************************************************************/ 880/*****************************************************************************/
797/* work around various missing functions */ 881/* work around various missing functions */
798 882
… …
803/* 887/*
804 * make our pread/pwrite safe against themselves, but not against 888 * make our pread/pwrite safe against themselves, but not against
805 * normal read/write by using a mutex. slows down execution a lot, 889 * normal read/write by using a mutex. slows down execution a lot,
806 * but that's your problem, not mine. 890 * but that's your problem, not mine.
807 */ 891 */
808static mutex_t preadwritelock = MUTEX_INIT; 892static mutex_t preadwritelock = X_MUTEX_INIT;
809 893
810static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
811{ 895{
812 ssize_t res; 896 ssize_t res;
813 off_t ooffset; 897 off_t ooffset;
814 898
815 LOCK (preadwritelock); 899 X_LOCK (preadwritelock);
816 ooffset = lseek (fd, 0, SEEK_CUR); 900 ooffset = lseek (fd, 0, SEEK_CUR);
817 lseek (fd, offset, SEEK_SET); 901 lseek (fd, offset, SEEK_SET);
818 res = read (fd, buf, count); 902 res = read (fd, buf, count);
819 lseek (fd, ooffset, SEEK_SET); 903 lseek (fd, ooffset, SEEK_SET);
820 UNLOCK (preadwritelock); 904 X_UNLOCK (preadwritelock);
821 905
822 return res; 906 return res;
823} 907}
824 908
825static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
826{ 910{
827 ssize_t res; 911 ssize_t res;
828 off_t ooffset; 912 off_t ooffset;
829 913
830 LOCK (preadwritelock); 914 X_LOCK (preadwritelock);
831 ooffset = lseek (fd, 0, SEEK_CUR); 915 ooffset = lseek (fd, 0, SEEK_CUR);
832 lseek (fd, offset, SEEK_SET); 916 lseek (fd, offset, SEEK_SET);
833 res = write (fd, buf, count); 917 res = write (fd, buf, count);
834 lseek (fd, offset, SEEK_SET); 918 lseek (fd, offset, SEEK_SET);
835 UNLOCK (preadwritelock); 919 X_UNLOCK (preadwritelock);
836 920
837 return res; 921 return res;
838} 922}
839#endif 923#endif
840 924
… …
873#if !HAVE_READAHEAD 957#if !HAVE_READAHEAD
874# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
875 959
876static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
877{ 961{
962 size_t todo = count;
878 dBUF; 963 dBUF;
879 964
880 while (count > 0) 965 while (todo > 0)
881 { 966 {
882 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
883 968
884 pread (fd, aio_buf, len, offset); 969 pread (fd, aio_buf, len, offset);
885 offset += len; 970 offset += len;
886 count -= len; 971 todo -= len;
887 } 972 }
888 973
889 errno = 0; 974 errno = 0;
975 return count;
890} 976}
891 977
892#endif 978#endif
893 979
894#if !HAVE_READDIR_R 980#if !HAVE_READDIR_R
895# define readdir_r aio_readdir_r 981# define readdir_r aio_readdir_r
896 982
897static mutex_t readdirlock = MUTEX_INIT; 983static mutex_t readdirlock = X_MUTEX_INIT;
898 984
899static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
900{ 986{
901 struct dirent *e; 987 X_DIRENT *e;
902 int errorno; 988 int errorno;
903 989
904 LOCK (readdirlock); 990 X_LOCK (readdirlock);
905 991
906 e = readdir (dirp); 992 e = readdir (dirp);
907 errorno = errno; 993 errorno = errno;
908 994
909 if (e) 995 if (e)
… …
912 strcpy (ent->d_name, e->d_name); 998 strcpy (ent->d_name, e->d_name);
913 } 999 }
914 else 1000 else
915 *res = 0; 1001 *res = 0;
916 1002
917 UNLOCK (readdirlock); 1003 X_UNLOCK (readdirlock);
918 1004
919 errno = errorno; 1005 errno = errorno;
920 return e ? 0 : -1; 1006 return e ? 0 : -1;
921} 1007}
922#endif 1008#endif
… …
1018static void scandir_ (aio_req req, worker *self) 1104static void scandir_ (aio_req req, worker *self)
1019{ 1105{
1020 DIR *dirp; 1106 DIR *dirp;
1021 union 1107 union
1022 { 1108 {
1023 struct dirent d; 1109 X_DIRENT d;
1024 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; 1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1025 } *u; 1111 } *u;
1026 struct dirent *entp; 1112 X_DIRENT *entp;
1027 char *name, *names; 1113 char *name, *names;
1028 int memlen = 4096; 1114 int memlen = 4096;
1029 int memofs = 0; 1115 int memofs = 0;
1030 int res = 0; 1116 int res = 0;
1031 int errorno;
1032 1117
1033 LOCK (wrklock); 1118 X_LOCK (wrklock);
1034 self->dirp = dirp = opendir (req->ptr1); 1119 self->dirp = dirp = opendir (req->ptr1);
1035 self->dbuf = u = malloc (sizeof (*u)); 1120 self->dbuf = u = malloc (sizeof (*u));
1036 req->flags |= FLAG_PTR2_FREE; 1121 req->flags |= FLAG_PTR2_FREE;
1037 req->ptr2 = names = malloc (memlen); 1122 req->ptr2 = names = malloc (memlen);
1038 UNLOCK (wrklock); 1123 X_UNLOCK (wrklock);
1039 1124
1040 if (dirp && u && names) 1125 if (dirp && u && names)
1041 for (;;) 1126 for (;;)
1042 { 1127 {
1043 errno = 0; 1128 errno = 0;
… …
1055 res++; 1140 res++;
1056 1141
1057 while (memofs + len > memlen) 1142 while (memofs + len > memlen)
1058 { 1143 {
1059 memlen *= 2; 1144 memlen *= 2;
1060 LOCK (wrklock); 1145 X_LOCK (wrklock);
1061 req->ptr2 = names = realloc (names, memlen); 1146 req->ptr2 = names = realloc (names, memlen);
1062 UNLOCK (wrklock); 1147 X_UNLOCK (wrklock);
1063 1148
1064 if (!names) 1149 if (!names)
1065 break; 1150 break;
1066 } 1151 }
1067 1152
… …
1076 req->result = res; 1161 req->result = res;
1077} 1162}
1078 1163
1079/*****************************************************************************/ 1164/*****************************************************************************/
1080 1165
1081static void *aio_proc (void *thr_arg) 1166X_THREAD_PROC (aio_proc)
1082{ 1167{
1168 {//D
1083 aio_req req; 1169 aio_req req;
1084 struct timespec ts; 1170 struct timespec ts;
1085 worker *self = (worker *)thr_arg; 1171 worker *self = (worker *)thr_arg;
1086 1172
1087 /* try to distribute timeouts somewhat evenly */ 1173 /* try to distribute timeouts somewhat randomly */
1088 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) 1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1089 * (1000000000UL / 1024UL);
1090 1175
1091 for (;;) 1176 for (;;)
1092 { 1177 {
1093 ts.tv_sec = time (0) + IDLE_TIMEOUT; 1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1094 1179
1095 LOCK (reqlock); 1180 X_LOCK (reqlock);
1096 1181
1097 for (;;) 1182 for (;;)
1098 { 1183 {
1099 self->req = req = reqq_shift (&req_queue); 1184 self->req = req = reqq_shift (&req_queue);
1100 1185
1101 if (req) 1186 if (req)
1102 break; 1187 break;
1103 1188
1104 ++idle; 1189 ++idle;
1105 1190
1106 if (COND_TIMEDWAIT (reqwait, reqlock, ts) 1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1107 == ETIMEDOUT) 1192 == ETIMEDOUT)
1108 { 1193 {
1109 if (idle > max_idle) 1194 if (idle > max_idle)
1110 { 1195 {
1111 --idle; 1196 --idle;
1112 UNLOCK (reqlock); 1197 X_UNLOCK (reqlock);
1113 LOCK (wrklock); 1198 X_LOCK (wrklock);
1114 --started; 1199 --started;
1115 UNLOCK (wrklock); 1200 X_UNLOCK (wrklock);
1116 goto quit; 1201 goto quit;
1117 } 1202 }
1118 1203
1119 /* we are allowed to idle, so do so without any timeout */ 1204 /* we are allowed to idle, so do so without any timeout */
1120 COND_WAIT (reqwait, reqlock); 1205 X_COND_WAIT (reqwait, reqlock);
1121 ts.tv_sec = time (0) + IDLE_TIMEOUT; 1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1122 } 1207 }
1123 1208
1124 --idle; 1209 --idle;
1125 } 1210 }
1126 1211
1127 --nready; 1212 --nready;
1128 1213
1129 UNLOCK (reqlock); 1214 X_UNLOCK (reqlock);
1130 1215
1131 errno = 0; /* strictly unnecessary */ 1216 errno = 0; /* strictly unnecessary */
1132 1217
1133 if (!(req->flags & FLAG_CANCELLED)) 1218 if (!(req->flags & FLAG_CANCELLED))
1134 switch (req->type) 1219 switch (req->type)
1135 { 1220 {
1136 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; 1221 case REQ_READ: req->result = req->offs >= 0
1137 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; 1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1138 1227
1139 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; 1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1140 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; 1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1141 1230
1142 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; 1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
… …
1145 1234
1146 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; 1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1147 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; 1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1148 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; 1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1149 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; 1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1150 1241
1151 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; 1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1152 case REQ_CLOSE: req->result = close (req->int1); break; 1243 case REQ_CLOSE: req->result = close (req->int1); break;
1153 case REQ_UNLINK: req->result = unlink (req->ptr1); break; 1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1154 case REQ_RMDIR: req->result = rmdir (req->ptr1); break; 1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
… …
1162 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; 1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1163 case REQ_FSYNC: req->result = fsync (req->int1); break; 1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1164 case REQ_READDIR: scandir_ (req, self); break; 1255 case REQ_READDIR: scandir_ (req, self); break;
1165 1256
1166 case REQ_BUSY: 1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1167 { 1261 {
1168 struct timeval tv; 1262 struct timeval tv;
1169 1263
1170 tv.tv_sec = req->nv1; 1264 tv.tv_sec = req->nv1;
1171 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.; 1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1172 1266
1173 req->result = select (0, 0, 0, 0, &tv); 1267 req->result = select (0, 0, 0, 0, &tv);
1174 } 1268 }
1269#endif
1270 break;
1175 1271
1176 case REQ_UTIME: 1272 case REQ_UTIME:
1177 case REQ_FUTIME: 1273 case REQ_FUTIME:
1178 { 1274 {
1179 struct timeval tv[2]; 1275 struct timeval tv[2];
… …
1209 break; 1305 break;
1210 } 1306 }
1211 1307
1212 req->errorno = errno; 1308 req->errorno = errno;
1213 1309
1214 LOCK (reslock); 1310 X_LOCK (reslock);
1215 1311
1216 ++npending; 1312 ++npending;
1217 1313
1218 if (!reqq_push (&res_queue, req)) 1314 if (!reqq_push (&res_queue, req))
1219 { 1315 {
1220 /* write a dummy byte to the pipe so fh becomes ready */ 1316 /* write a dummy byte to the pipe so fh becomes ready */
1221 write (respipe [1], &respipe, 1); 1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1222 1318
1223 /* optionally signal the main thread asynchronously */ 1319 /* optionally signal the main thread asynchronously */
1224 if (main_sig) 1320 if (main_sig)
1225 pthread_kill (main_tid, main_sig); 1321 pthread_kill (main_tid, main_sig);
1226 } 1322 }
1227 1323
1228 self->req = 0; 1324 self->req = 0;
1229 worker_clear (self); 1325 worker_clear (self);
1230 1326
1231 UNLOCK (reslock); 1327 X_UNLOCK (reslock);
1232 } 1328 }
1233 1329
1234quit: 1330quit:
1235 LOCK (wrklock); 1331 X_LOCK (wrklock);
1236 worker_free (self); 1332 worker_free (self);
1237 UNLOCK (wrklock); 1333 X_UNLOCK (wrklock);
1238 1334
1239 return 0; 1335 return 0;
1336 }//D
1240} 1337}
1241 1338
1242/*****************************************************************************/ 1339/*****************************************************************************/
1243 1340
1244static void atfork_prepare (void) 1341static void atfork_prepare (void)
1245{ 1342{
1246 LOCK (wrklock); 1343 X_LOCK (wrklock);
1247 LOCK (reqlock); 1344 X_LOCK (reqlock);
1248 LOCK (reslock); 1345 X_LOCK (reslock);
1249#if !HAVE_PREADWRITE 1346#if !HAVE_PREADWRITE
1250 LOCK (preadwritelock); 1347 X_LOCK (preadwritelock);
1251#endif 1348#endif
1252#if !HAVE_READDIR_R 1349#if !HAVE_READDIR_R
1253 LOCK (readdirlock); 1350 X_LOCK (readdirlock);
1254#endif 1351#endif
1255} 1352}
1256 1353
1257static void atfork_parent (void) 1354static void atfork_parent (void)
1258{ 1355{
1259#if !HAVE_READDIR_R 1356#if !HAVE_READDIR_R
1260 UNLOCK (readdirlock); 1357 X_UNLOCK (readdirlock);
1261#endif 1358#endif
1262#if !HAVE_PREADWRITE 1359#if !HAVE_PREADWRITE
1263 UNLOCK (preadwritelock); 1360 X_UNLOCK (preadwritelock);
1264#endif 1361#endif
1265 UNLOCK (reslock); 1362 X_UNLOCK (reslock);
1266 UNLOCK (reqlock); 1363 X_UNLOCK (reqlock);
1267 UNLOCK (wrklock); 1364 X_UNLOCK (wrklock);
1268} 1365}
1269 1366
1270static void atfork_child (void) 1367static void atfork_child (void)
1271{ 1368{
1272 aio_req prv; 1369 aio_req prv;
1273 1370
1274 while (prv = reqq_shift (&req_queue)) 1371 while (prv = reqq_shift (&req_queue))
1275 req_free (prv); 1372 req_destroy (prv);
1276 1373
1277 while (prv = reqq_shift (&res_queue)) 1374 while (prv = reqq_shift (&res_queue))
1278 req_free (prv); 1375 req_destroy (prv);
1279 1376
1280 while (wrk_first.next != &wrk_first) 1377 while (wrk_first.next != &wrk_first)
1281 { 1378 {
1282 worker *wrk = wrk_first.next; 1379 worker *wrk = wrk_first.next;
1283 1380
1284 if (wrk->req) 1381 if (wrk->req)
1285 req_free (wrk->req); 1382 req_destroy (wrk->req);
1286 1383
1287 worker_clear (wrk); 1384 worker_clear (wrk);
1288 worker_free (wrk); 1385 worker_free (wrk);
1289 } 1386 }
1290 1387
… …
1292 idle = 0; 1389 idle = 0;
1293 nreqs = 0; 1390 nreqs = 0;
1294 nready = 0; 1391 nready = 0;
1295 npending = 0; 1392 npending = 0;
1296 1393
1297 close (respipe [0]);
1298 close (respipe [1]);
1299 create_pipe (); 1394 create_respipe ();
1300 1395
1301 atfork_parent (); 1396 atfork_parent ();
1302} 1397}
1303 1398
1304#define dREQ \ 1399#define dREQ \
… …
1333 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1334 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1335 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1336 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1337 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440
1441 X_COND_CHECK (reqwait);
1442#else
1338 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1339 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); 1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1340 1446
1341 create_pipe (); 1447 create_respipe ();
1448
1342 ATFORK (atfork_prepare, atfork_parent, atfork_child); 1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1343} 1450}
1344 1451
1345void 1452void
1346max_poll_reqs (int nreqs) 1453max_poll_reqs (int nreqs)
1347 PROTOTYPE: $ 1454 PROTOTYPE: $
… …
1410 1517
1411 REQ_SEND (req); 1518 REQ_SEND (req);
1412} 1519}
1413 1520
1414void 1521void
1415aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1416 ALIAS: 1523 ALIAS:
1417 aio_read = REQ_READ 1524 aio_read = REQ_READ
1418 aio_write = REQ_WRITE 1525 aio_write = REQ_WRITE
1419 PROTOTYPE: $$$$$;$ 1526 PROTOTYPE: $$$$$;$
1420 PPCODE: 1527 PPCODE:
1421{ 1528{
1422 STRLEN svlen; 1529 STRLEN svlen;
1423 char *svptr = SvPVbyte (data, svlen); 1530 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length);
1424 1532
1425 SvUPGRADE (data, SVt_PV); 1533 SvUPGRADE (data, SVt_PV);
1426 SvPOK_on (data); 1534 SvPOK_on (data);
1427 1535
1428 if (dataoffset < 0) 1536 if (dataoffset < 0)
1429 dataoffset += svlen; 1537 dataoffset += svlen;
1430 1538
1431 if (dataoffset < 0 || dataoffset > svlen) 1539 if (dataoffset < 0 || dataoffset > svlen)
1432 croak ("data offset outside of string"); 1540 croak ("dataoffset outside of data scalar");
1433 1541
1434 if (ix == REQ_WRITE) 1542 if (ix == REQ_WRITE)
1435 { 1543 {
1436 /* write: check length and adjust. */ 1544 /* write: check length and adjust. */
1437 if (length < 0 || length + dataoffset > svlen) 1545 if (!SvOK (length) || len + dataoffset > svlen)
1438 length = svlen - dataoffset; 1546 len = svlen - dataoffset;
1439 } 1547 }
1440 else 1548 else
1441 { 1549 {
1442 /* read: grow scalar as necessary */ 1550 /* read: grow scalar as necessary */
1443 svptr = SvGROW (data, length + dataoffset + 1); 1551 svptr = SvGROW (data, len + dataoffset + 1);
1444 } 1552 }
1445 1553
1446 if (length < 0) 1554 if (len < 0)
1447 croak ("length must not be negative"); 1555 croak ("length must not be negative");
1448 1556
1449 { 1557 {
1450 dREQ; 1558 dREQ;
1451 1559
1452 req->type = ix; 1560 req->type = ix;
1453 req->sv1 = newSVsv (fh); 1561 req->sv1 = newSVsv (fh);
1454 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1455 : IoOFP (sv_2io (fh))); 1563 : IoOFP (sv_2io (fh)));
1456 req->offs = offset; 1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1457 req->size = length; 1565 req->size = len;
1458 req->sv2 = SvREFCNT_inc (data); 1566 req->sv2 = SvREFCNT_inc (data);
1459 req->ptr1 = (char *)svptr + dataoffset; 1567 req->ptr1 = (char *)svptr + dataoffset;
1460 req->stroffset = dataoffset; 1568 req->stroffset = dataoffset;
1461 1569
1462 if (!SvREADONLY (data)) 1570 if (!SvREADONLY (data))
… …
1488 1596
1489 REQ_SEND; 1597 REQ_SEND;
1490} 1598}
1491 1599
1492void 1600void
1493aio_sendfile (SV *out_fh, SV *in_fh, UV in_offset, UV length, SV *callback=&PL_sv_undef) 1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1494 PROTOTYPE: $$$$;$ 1602 PROTOTYPE: $$$$;$
1495 PPCODE: 1603 PPCODE:
1496{ 1604{
1497 dREQ; 1605 dREQ;
1498 1606
1499 req->type = REQ_SENDFILE; 1607 req->type = REQ_SENDFILE;
1500 req->sv1 = newSVsv (out_fh); 1608 req->sv1 = newSVsv (out_fh);
1501 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1502 req->sv2 = newSVsv (in_fh); 1610 req->sv2 = newSVsv (in_fh);
1503 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1504 req->offs = in_offset; 1612 req->offs = SvVAL64 (in_offset);
1505 req->size = length; 1613 req->size = length;
1506 1614
1507 REQ_SEND; 1615 REQ_SEND;
1508} 1616}
1509 1617
1510void 1618void
1511aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) 1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1512 PROTOTYPE: $$$;$ 1620 PROTOTYPE: $$$;$
1513 PPCODE: 1621 PPCODE:
1514{ 1622{
1515 dREQ; 1623 dREQ;
1516 1624
1517 req->type = REQ_READAHEAD; 1625 req->type = REQ_READAHEAD;
1518 req->sv1 = newSVsv (fh); 1626 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1520 req->offs = offset; 1628 req->offs = SvVAL64 (offset);
1521 req->size = length; 1629 req->size = length;
1522 1630
1523 REQ_SEND; 1631 REQ_SEND;
1524} 1632}
1525 1633
… …
1533 dREQ; 1641 dREQ;
1534 1642
1535 req->ptr2 = malloc (sizeof (Stat_t)); 1643 req->ptr2 = malloc (sizeof (Stat_t));
1536 if (!req->ptr2) 1644 if (!req->ptr2)
1537 { 1645 {
1538 req_free (req); 1646 req_destroy (req);
1539 croak ("out of memory during aio_stat statdata allocation"); 1647 croak ("out of memory during aio_stat statdata allocation");
1540 } 1648 }
1541 1649
1542 req->flags |= FLAG_PTR2_FREE; 1650 req->flags |= FLAG_PTR2_FREE;
1543 req->sv1 = newSVsv (fh_or_path); 1651 req->sv1 = newSVsv (fh_or_path);
… …
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1573 } 1681 }
1574 else 1682 else
1575 { 1683 {
1576 req->type = REQ_FUTIME; 1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687
1688 REQ_SEND;
1689}
1690
1691void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1693 PPCODE:
1694{
1695 dREQ;
1696
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1577 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1578 } 1709 }
1579 1710
1580 REQ_SEND; 1711 REQ_SEND;
1581} 1712}
… …
1797 CODE: 1928 CODE:
1798{ 1929{
1799 if (block_sig_level) 1930 if (block_sig_level)
1800 croak ("cannot call IO::AIO::setsig from within aio_block/callback"); 1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1801 1932
1802 LOCK (reslock); 1933 X_LOCK (reslock);
1803 main_tid = pthread_self (); 1934 main_tid = pthread_self ();
1804 main_sig = signum; 1935 main_sig = signum;
1805 UNLOCK (reslock); 1936 X_UNLOCK (reslock);
1806 1937
1807 if (main_sig && npending) 1938 if (main_sig && npending)
1808 pthread_kill (main_tid, main_sig); 1939 pthread_kill (main_tid, main_sig);
1809} 1940}
1810 1941
… …
1854 1985
1855int 1986int
1856nthreads() 1987nthreads()
1857 PROTOTYPE: 1988 PROTOTYPE:
1858 CODE: 1989 CODE:
1859 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1860 RETVAL = started; 1991 RETVAL = started;
1861 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1862 OUTPUT: 1993 OUTPUT:
1863 RETVAL 1994 RETVAL
1864 1995
1865PROTOTYPES: DISABLE 1996PROTOTYPES: DISABLE
1866 1997

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines