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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.38 by root, Sun Aug 28 10:51:33 2005 UTC vs.
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC

… …
8#include "autoconf/config.h" 8#include "autoconf/config.h"
9 9
10#include <pthread.h> 10#include <pthread.h>
11 11
12#include <stddef.h> 12#include <stddef.h>
13#include <errno.h>
13#include <sys/types.h> 14#include <sys/types.h>
14#include <sys/stat.h> 15#include <sys/stat.h>
15#include <limits.h> 16#include <limits.h>
16#include <unistd.h> 17#include <unistd.h>
17#include <fcntl.h> 18#include <fcntl.h>
… …
31# else 32# else
32# error sendfile support requested but not available 33# error sendfile support requested but not available
33# endif 34# endif
34#endif 35#endif
35 36
37/* used for struct dirent, AIX doesn't provide it */
38#ifndef NAME_MAX
39# define NAME_MAX 4096
40#endif
41
36#if __ia64 42#if __ia64
37# define STACKSIZE 65536 43# define STACKSIZE 65536
38#else 44#else
39# define STACKSIZE 8192 45# define STACKSIZE 8192
40#endif 46#endif
… …
44 REQ_OPEN, REQ_CLOSE, 50 REQ_OPEN, REQ_CLOSE,
45 REQ_READ, REQ_WRITE, REQ_READAHEAD, 51 REQ_READ, REQ_WRITE, REQ_READAHEAD,
46 REQ_SENDFILE, 52 REQ_SENDFILE,
47 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 53 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
48 REQ_FSYNC, REQ_FDATASYNC, 54 REQ_FSYNC, REQ_FDATASYNC,
49 REQ_UNLINK, REQ_RMDIR, 55 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
50 REQ_READDIR, 56 REQ_READDIR,
51 REQ_SYMLINK, 57 REQ_LINK, REQ_SYMLINK,
58 REQ_GROUP,
52}; 59};
53 60
61#define AIO_REQ_KLASS "IO::AIO::REQ"
62#define AIO_GRP_KLASS "IO::AIO::GRP"
63
54typedef struct aio_cb { 64typedef struct aio_cb
65{
66 struct aio_cb *grp, *grp_prev, *grp_next;
67
55 struct aio_cb *volatile next; 68 struct aio_cb *volatile next;
56 69
57 int type; 70 SV *self; /* the perl counterpart of this request, if any */
58 71
59 /* should receive a cleanup, with unions */ 72 SV *data, *callback;
60 int fd, fd2; 73 SV *fh, *fh2;
74 void *dataptr, *data2ptr;
75 Stat_t *statdata;
61 off_t offset; 76 off_t offset;
62 size_t length; 77 size_t length;
63 ssize_t result; 78 ssize_t result;
79
80 int type;
81 int fd, fd2;
82 int errorno;
83 STRLEN dataoffset;
64 mode_t mode; /* open */ 84 mode_t mode; /* open */
65 int errorno; 85 unsigned char cancelled;
66 SV *data, *callback;
67 SV *fh, *fh2;
68 void *dataptr, *data2ptr;
69 STRLEN dataoffset;
70
71 Stat_t *statdata;
72} aio_cb; 86} aio_cb;
73 87
74typedef aio_cb *aio_req; 88typedef aio_cb *aio_req;
89typedef aio_cb *aio_req_ornot;
90typedef aio_cb *aio_group;
75 91
76static int started, wanted; 92static int started, wanted;
77static volatile int nreqs; 93static volatile int nreqs;
78static int max_outstanding = 1<<30; 94static int max_outstanding = 1<<30;
79static int respipe [2]; 95static int respipe [2];
… …
83static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 99static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84 100
85static volatile aio_req reqs, reqe; /* queue start, queue end */ 101static volatile aio_req reqs, reqe; /* queue start, queue end */
86static volatile aio_req ress, rese; /* queue start, queue end */ 102static volatile aio_req ress, rese; /* queue start, queue end */
87 103
104/* must be called at most once */
105static SV *req_sv (aio_req req, const char *klass)
106{
107 req->self = (SV *)newHV ();
108 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
109
110 return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1)));
111}
112
113static aio_req SvAIO_REQ (SV *sv, const char *klass)
114{
115 if (!sv_derived_from (sv, klass) || !SvROK (sv))
116 croak ("object of class %s expected", klass);
117
118 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
119
120 return mg ? (aio_req)mg->mg_ptr : 0;
121}
122
88static void free_req (aio_req req) 123static void req_free (aio_req req)
89{ 124{
125 if (req->self)
126 {
127 sv_unmagic (req->self, PERL_MAGIC_ext);
128 SvREFCNT_dec (req->self);
129 }
130
90 if (req->data) 131 if (req->data)
91 SvREFCNT_dec (req->data); 132 SvREFCNT_dec (req->data);
92 133
93 if (req->fh) 134 if (req->fh)
94 SvREFCNT_dec (req->fh); 135 SvREFCNT_dec (req->fh);
… …
220 PUSHMARK (SP); 261 PUSHMARK (SP);
221 XPUSHs (sv_2mortal (fh)); 262 XPUSHs (sv_2mortal (fh));
222 } 263 }
223 } 264 }
224 265
225 if (SvOK (req->callback)) 266 if (SvOK (req->callback) && !req->cancelled)
226 { 267 {
227 PUTBACK; 268 PUTBACK;
228 call_sv (req->callback, G_VOID | G_EVAL); 269 call_sv (req->callback, G_VOID | G_EVAL);
229 SPAGAIN; 270 SPAGAIN;
230 271
231 if (SvTRUE (ERRSV)) 272 if (SvTRUE (ERRSV))
232 { 273 {
233 free_req (req); 274 req_free (req);
234 croak (0); 275 croak (0);
235 } 276 }
236 } 277 }
237 278
238 LEAVE; 279 LEAVE;
239 280
240 errno = errorno; 281 errno = errorno;
241 count++; 282 count++;
242 } 283 }
243 284
244 free_req (req); 285 req_free (req);
245 } 286 }
246 287
247 return count; 288 return count;
248} 289}
249 290
… …
268 309
269 sigprocmask (SIG_SETMASK, &oldsigset, 0); 310 sigprocmask (SIG_SETMASK, &oldsigset, 0);
270} 311}
271 312
272static void 313static void
273send_req (aio_req req) 314req_send (aio_req req)
274{ 315{
275 while (started < wanted && nreqs >= started) 316 while (started < wanted && nreqs >= started)
276 start_thread (); 317 start_thread ();
277 318
278 nreqs++; 319 nreqs++;
… …
309{ 350{
310 aio_req req; 351 aio_req req;
311 Newz (0, req, 1, aio_cb); 352 Newz (0, req, 1, aio_cb);
312 req->type = REQ_QUIT; 353 req->type = REQ_QUIT;
313 354
314 send_req (req); 355 req_send (req);
315} 356}
316 357
317static void min_parallel (int nthreads) 358static void min_parallel (int nthreads)
318{ 359{
319 if (wanted < nthreads) 360 if (wanted < nthreads)
… …
642 683
643 pthread_mutex_unlock (&reqlock); 684 pthread_mutex_unlock (&reqlock);
644 685
645 errno = 0; /* strictly unnecessary */ 686 errno = 0; /* strictly unnecessary */
646 687
647 type = req->type; 688 if (!req->cancelled)
648
649 switch (type) 689 switch (req->type)
650 { 690 {
651 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 691 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
652 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 692 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
653 693
654 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 694 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
655 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 695 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
656 696
657 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 697 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
658 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 698 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
659 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 699 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
660 700
661 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 701 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
662 case REQ_CLOSE: req->result = close (req->fd); break; 702 case REQ_CLOSE: req->result = close (req->fd); break;
663 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 703 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
664 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 704 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
705 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
706 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
665 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 707 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
666 708
667 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 709 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
668 case REQ_FSYNC: req->result = fsync (req->fd); break; 710 case REQ_FSYNC: req->result = fsync (req->fd); break;
669 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 711 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
670 712
671 case REQ_QUIT: 713 case REQ_QUIT:
672 break; 714 break;
673 715
674 default: 716 default:
675 req->result = ENOSYS; 717 req->result = ENOSYS;
676 break; 718 break;
677 } 719 }
678 720
679 req->errorno = errno; 721 req->errorno = errno;
680 722
681 pthread_mutex_lock (&reslock); 723 pthread_mutex_lock (&reslock);
682 724
… …
736 778
737 while (reqs) 779 while (reqs)
738 { 780 {
739 prv = reqs; 781 prv = reqs;
740 reqs = prv->next; 782 reqs = prv->next;
741 free_req (prv); 783 req_free (prv);
742 } 784 }
743 785
744 reqs = reqe = 0; 786 reqs = reqe = 0;
745 787
746 while (ress) 788 while (ress)
747 { 789 {
748 prv = ress; 790 prv = ress;
749 ress = prv->next; 791 ress = prv->next;
750 free_req (prv); 792 req_free (prv);
751 } 793 }
752 794
753 ress = rese = 0; 795 ress = rese = 0;
754 796
755 close (respipe [0]); 797 close (respipe [0]);
… …
761 803
762#define dREQ \ 804#define dREQ \
763 aio_req req; \ 805 aio_req req; \
764 \ 806 \
765 if (SvOK (callback) && !SvROK (callback)) \ 807 if (SvOK (callback) && !SvROK (callback)) \
766 croak ("clalback must be undef or of reference type"); \ 808 croak ("callback must be undef or of reference type"); \
767 \ 809 \
768 Newz (0, req, 1, aio_cb); \ 810 Newz (0, req, 1, aio_cb); \
769 if (!req) \ 811 if (!req) \
770 croak ("out of memory during aio_req allocation"); \ 812 croak ("out of memory during aio_req allocation"); \
771 \ 813 \
772 req->callback = newSVsv (callback); 814 req->callback = newSVsv (callback)
815
816#define REQ_SEND \
817 req_send (req); \
818 \
819 if (GIMME_V != G_VOID) \
820 XPUSHs (req_sv (req, AIO_REQ_KLASS));
773 821
774MODULE = IO::AIO PACKAGE = IO::AIO 822MODULE = IO::AIO PACKAGE = IO::AIO
775 823
776PROTOTYPES: ENABLE 824PROTOTYPES: ENABLE
777 825
778BOOT: 826BOOT:
779{ 827{
828 HV *stash = gv_stashpv ("IO::AIO", 1);
829 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
830 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
831 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
832
780 create_pipe (); 833 create_pipe ();
781 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 834 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
782} 835}
783 836
784void 837void
785min_parallel(nthreads) 838min_parallel (nthreads)
786 int nthreads 839 int nthreads
787 PROTOTYPE: $ 840 PROTOTYPE: $
788 841
789void 842void
790max_parallel(nthreads) 843max_parallel (nthreads)
791 int nthreads 844 int nthreads
792 PROTOTYPE: $ 845 PROTOTYPE: $
793 846
794int 847int
795max_outstanding(nreqs) 848max_outstanding (nreqs)
796 int nreqs 849 int nreqs
797 PROTOTYPE: $ 850 PROTOTYPE: $
798 CODE: 851 CODE:
799 RETVAL = max_outstanding; 852 RETVAL = max_outstanding;
800 max_outstanding = nreqs; 853 max_outstanding = nreqs;
801 854
802void 855void
803aio_open(pathname,flags,mode,callback=&PL_sv_undef) 856aio_open (pathname,flags,mode,callback=&PL_sv_undef)
804 SV * pathname 857 SV * pathname
805 int flags 858 int flags
806 int mode 859 int mode
807 SV * callback 860 SV * callback
808 PROTOTYPE: $$$;$ 861 PROTOTYPE: $$$;$
809 CODE: 862 PPCODE:
810{ 863{
811 dREQ; 864 dREQ;
812 865
813 req->type = REQ_OPEN; 866 req->type = REQ_OPEN;
814 req->data = newSVsv (pathname); 867 req->data = newSVsv (pathname);
815 req->dataptr = SvPVbyte_nolen (req->data); 868 req->dataptr = SvPVbyte_nolen (req->data);
816 req->fd = flags; 869 req->fd = flags;
817 req->mode = mode; 870 req->mode = mode;
818 871
819 send_req (req); 872 REQ_SEND;
820} 873}
821 874
822void 875void
823aio_close(fh,callback=&PL_sv_undef) 876aio_close (fh,callback=&PL_sv_undef)
824 SV * fh 877 SV * fh
825 SV * callback 878 SV * callback
826 PROTOTYPE: $;$ 879 PROTOTYPE: $;$
827 ALIAS: 880 ALIAS:
828 aio_close = REQ_CLOSE 881 aio_close = REQ_CLOSE
829 aio_fsync = REQ_FSYNC 882 aio_fsync = REQ_FSYNC
830 aio_fdatasync = REQ_FDATASYNC 883 aio_fdatasync = REQ_FDATASYNC
831 CODE: 884 PPCODE:
832{ 885{
833 dREQ; 886 dREQ;
834 887
835 req->type = ix; 888 req->type = ix;
836 req->fh = newSVsv (fh); 889 req->fh = newSVsv (fh);
837 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 890 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
838 891
839 send_req (req); 892 REQ_SEND (req);
840} 893}
841 894
842void 895void
843aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 896aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
844 SV * fh 897 SV * fh
845 UV offset 898 UV offset
846 UV length 899 UV length
847 SV * data 900 SV * data
848 UV dataoffset 901 UV dataoffset
849 SV * callback 902 SV * callback
850 ALIAS: 903 ALIAS:
851 aio_read = REQ_READ 904 aio_read = REQ_READ
852 aio_write = REQ_WRITE 905 aio_write = REQ_WRITE
853 PROTOTYPE: $$$$$;$ 906 PROTOTYPE: $$$$$;$
854 CODE: 907 PPCODE:
855{ 908{
856 aio_req req; 909 aio_req req;
857 STRLEN svlen; 910 STRLEN svlen;
858 char *svptr = SvPVbyte (data, svlen); 911 char *svptr = SvPVbyte (data, svlen);
859 912
… …
897 { 950 {
898 SvREADONLY_on (data); 951 SvREADONLY_on (data);
899 req->data2ptr = (void *)data; 952 req->data2ptr = (void *)data;
900 } 953 }
901 954
902 send_req (req); 955 REQ_SEND;
903 } 956 }
904} 957}
905 958
906void 959void
907aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 960aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
908 SV * out_fh 961 SV * out_fh
909 SV * in_fh 962 SV * in_fh
910 UV in_offset 963 UV in_offset
911 UV length 964 UV length
912 SV * callback 965 SV * callback
913 PROTOTYPE: $$$$;$ 966 PROTOTYPE: $$$$;$
914 CODE: 967 PPCODE:
915{ 968{
916 dREQ; 969 dREQ;
917 970
918 req->type = REQ_SENDFILE; 971 req->type = REQ_SENDFILE;
919 req->fh = newSVsv (out_fh); 972 req->fh = newSVsv (out_fh);
… …
921 req->fh2 = newSVsv (in_fh); 974 req->fh2 = newSVsv (in_fh);
922 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 975 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
923 req->offset = in_offset; 976 req->offset = in_offset;
924 req->length = length; 977 req->length = length;
925 978
926 send_req (req); 979 REQ_SEND;
927} 980}
928 981
929void 982void
930aio_readahead(fh,offset,length,callback=&PL_sv_undef) 983aio_readahead (fh,offset,length,callback=&PL_sv_undef)
931 SV * fh 984 SV * fh
932 UV offset 985 UV offset
933 IV length 986 IV length
934 SV * callback 987 SV * callback
935 PROTOTYPE: $$$;$ 988 PROTOTYPE: $$$;$
936 CODE: 989 PPCODE:
937{ 990{
938 dREQ; 991 dREQ;
939 992
940 req->type = REQ_READAHEAD; 993 req->type = REQ_READAHEAD;
941 req->fh = newSVsv (fh); 994 req->fh = newSVsv (fh);
942 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 995 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
943 req->offset = offset; 996 req->offset = offset;
944 req->length = length; 997 req->length = length;
945 998
946 send_req (req); 999 REQ_SEND;
947} 1000}
948 1001
949void 1002void
950aio_stat(fh_or_path,callback=&PL_sv_undef) 1003aio_stat (fh_or_path,callback=&PL_sv_undef)
951 SV * fh_or_path 1004 SV * fh_or_path
952 SV * callback 1005 SV * callback
953 ALIAS: 1006 ALIAS:
954 aio_stat = REQ_STAT 1007 aio_stat = REQ_STAT
955 aio_lstat = REQ_LSTAT 1008 aio_lstat = REQ_LSTAT
956 CODE: 1009 PPCODE:
957{ 1010{
958 dREQ; 1011 dREQ;
959 1012
960 New (0, req->statdata, 1, Stat_t); 1013 New (0, req->statdata, 1, Stat_t);
961 if (!req->statdata) 1014 if (!req->statdata)
962 { 1015 {
963 free_req (req); 1016 req_free (req);
964 croak ("out of memory during aio_req->statdata allocation"); 1017 croak ("out of memory during aio_req->statdata allocation");
965 } 1018 }
966 1019
967 if (SvPOK (fh_or_path)) 1020 if (SvPOK (fh_or_path))
968 { 1021 {
… …
975 req->type = REQ_FSTAT; 1028 req->type = REQ_FSTAT;
976 req->fh = newSVsv (fh_or_path); 1029 req->fh = newSVsv (fh_or_path);
977 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1030 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
978 } 1031 }
979 1032
980 send_req (req); 1033 REQ_SEND;
981} 1034}
982 1035
983void 1036void
984aio_unlink(pathname,callback=&PL_sv_undef) 1037aio_unlink (pathname,callback=&PL_sv_undef)
985 SV * pathname 1038 SV * pathname
986 SV * callback 1039 SV * callback
987 ALIAS: 1040 ALIAS:
988 aio_unlink = REQ_UNLINK 1041 aio_unlink = REQ_UNLINK
989 aio_rmdir = REQ_RMDIR 1042 aio_rmdir = REQ_RMDIR
1043 aio_readdir = REQ_READDIR
990 CODE: 1044 PPCODE:
991{ 1045{
992 dREQ; 1046 dREQ;
993 1047
994 req->type = ix; 1048 req->type = ix;
995 req->data = newSVsv (pathname); 1049 req->data = newSVsv (pathname);
996 req->dataptr = SvPVbyte_nolen (req->data); 1050 req->dataptr = SvPVbyte_nolen (req->data);
997 1051
998 send_req (req); 1052 REQ_SEND;
999} 1053}
1000 1054
1001void 1055void
1002aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1056aio_link (oldpath,newpath,callback=&PL_sv_undef)
1003 SV * oldpath 1057 SV * oldpath
1004 SV * newpath 1058 SV * newpath
1005 SV * callback 1059 SV * callback
1060 ALIAS:
1061 aio_link = REQ_LINK
1062 aio_symlink = REQ_SYMLINK
1063 aio_rename = REQ_RENAME
1006 CODE: 1064 PPCODE:
1007{ 1065{
1008 dREQ; 1066 dREQ;
1009 1067
1010 req->type = REQ_SYMLINK; 1068 req->type = ix;
1011 req->fh = newSVsv (oldpath); 1069 req->fh = newSVsv (oldpath);
1012 req->data2ptr = SvPVbyte_nolen (req->fh); 1070 req->data2ptr = SvPVbyte_nolen (req->fh);
1013 req->data = newSVsv (newpath); 1071 req->data = newSVsv (newpath);
1014 req->dataptr = SvPVbyte_nolen (req->data); 1072 req->dataptr = SvPVbyte_nolen (req->data);
1015 1073
1016 send_req (req); 1074 REQ_SEND;
1017} 1075}
1018 1076
1019void 1077void
1020aio_readdir(pathname,callback=&PL_sv_undef) 1078aio_group (callback=&PL_sv_undef)
1021 SV * pathname 1079 SV * callback
1022 SV * callback 1080 PROTOTYPE: ;&
1023 CODE: 1081 PPCODE:
1024{ 1082{
1025 dREQ; 1083 dREQ;
1026
1027 req->type = REQ_READDIR; 1084 req->type = REQ_GROUP;
1028 req->data = newSVsv (pathname); 1085 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1029 req->dataptr = SvPVbyte_nolen (req->data);
1030
1031 send_req (req);
1032} 1086}
1033 1087
1034void 1088void
1035flush() 1089flush ()
1036 PROTOTYPE: 1090 PROTOTYPE:
1037 CODE: 1091 CODE:
1038 while (nreqs) 1092 while (nreqs)
1039 { 1093 {
1040 poll_wait (); 1094 poll_wait ();
… …
1080 CODE: 1134 CODE:
1081 RETVAL = nreqs; 1135 RETVAL = nreqs;
1082 OUTPUT: 1136 OUTPUT:
1083 RETVAL 1137 RETVAL
1084 1138
1139MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1140
1141void
1142cancel (aio_req_ornot req)
1143 PROTOTYPE:
1144 CODE:
1145 req->cancelled = 1;
1146

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