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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.43 by root, Sat Oct 21 23:06:04 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,
52}; 58};
53 59
60#define AIO_CB_KLASS "IO::AIO::CB"
61
54typedef struct aio_cb { 62typedef struct aio_cb
63{
64 struct aio_cb *grp_prev, *grp_next;
65 struct aio_grp *grp;
66
55 struct aio_cb *volatile next; 67 struct aio_cb *volatile next;
56 68
57 int type; 69 SV *self; /* the perl counterpart of this request, if any */
58 70
59 /* should receive a cleanup, with unions */ 71 SV *data, *callback;
60 int fd, fd2; 72 SV *fh, *fh2;
73 void *dataptr, *data2ptr;
74 Stat_t *statdata;
61 off_t offset; 75 off_t offset;
62 size_t length; 76 size_t length;
63 ssize_t result; 77 ssize_t result;
78
79 int type;
80 int fd, fd2;
81 int errorno;
82 STRLEN dataoffset;
64 mode_t mode; /* open */ 83 mode_t mode; /* open */
65 int errorno; 84 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; 85} aio_cb;
73 86
74typedef aio_cb *aio_req; 87typedef aio_cb *aio_req;
88typedef aio_cb *aio_req_ornot;
75 89
76static int started, wanted; 90static int started, wanted;
77static volatile int nreqs; 91static volatile int nreqs;
78static int max_outstanding = 1<<30; 92static int max_outstanding = 1<<30;
79static int respipe [2]; 93static int respipe [2];
… …
83static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 97static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84 98
85static volatile aio_req reqs, reqe; /* queue start, queue end */ 99static volatile aio_req reqs, reqe; /* queue start, queue end */
86static volatile aio_req ress, rese; /* queue start, queue end */ 100static volatile aio_req ress, rese; /* queue start, queue end */
87 101
102typedef struct aio_grp
103{
104 struct aio_cb *first, *last;
105 SV *callback;
106 int busycount;
107} aio_grp;
108
109static void aio_grp_begin (aio_grp *grp)
110{
111 ++grp->busycount;
112}
113
114static void aio_grp_end (aio_grp *grp)
115{
116 --grp->busycount;
117
118 if (grp->busycount)
119 return;
120
121 SvREFCNT_dec (grp->callback);
122 grp->callback = 0;
123}
124
125static aio_grp *aio_grp_new ()
126{
127 aio_grp *grp;
128
129 Newz (0, grp, 1, aio_grp);
130 aio_grp_begin (grp);
131
132 return grp;
133}
134
135/* must be called at most once */
136static SV *req_sv (aio_req req)
137{
138 req->self = (SV *)newHV ();
139 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
140
141 return sv_bless (newRV_noinc (req->self), gv_stashpv (AIO_CB_KLASS, 1));
142}
143
144static aio_req SvAIO_REQ (SV *sv)
145{
146 if (!sv_derived_from (sv, AIO_CB_KLASS) || !SvROK (sv))
147 croak ("object of class " AIO_CB_KLASS " expected");
148
149 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
150
151 return mg ? (aio_req)mg->mg_ptr : 0;
152}
153
88static void free_req (aio_req req) 154static void req_free (aio_req req)
89{ 155{
156 if (req->self)
157 {
158 sv_unmagic (req->self, PERL_MAGIC_ext);
159 SvREFCNT_dec (req->self);
160 }
161
90 if (req->data) 162 if (req->data)
91 SvREFCNT_dec (req->data); 163 SvREFCNT_dec (req->data);
92 164
93 if (req->fh) 165 if (req->fh)
94 SvREFCNT_dec (req->fh); 166 SvREFCNT_dec (req->fh);
… …
220 PUSHMARK (SP); 292 PUSHMARK (SP);
221 XPUSHs (sv_2mortal (fh)); 293 XPUSHs (sv_2mortal (fh));
222 } 294 }
223 } 295 }
224 296
225 if (SvOK (req->callback)) 297 if (SvOK (req->callback) && !req->cancelled)
226 { 298 {
227 PUTBACK; 299 PUTBACK;
228 call_sv (req->callback, G_VOID | G_EVAL); 300 call_sv (req->callback, G_VOID | G_EVAL);
229 SPAGAIN; 301 SPAGAIN;
230 302
231 if (SvTRUE (ERRSV)) 303 if (SvTRUE (ERRSV))
232 { 304 {
233 free_req (req); 305 req_free (req);
234 croak (0); 306 croak (0);
235 } 307 }
236 } 308 }
237 309
238 LEAVE; 310 LEAVE;
239 311
240 errno = errorno; 312 errno = errorno;
241 count++; 313 count++;
242 } 314 }
243 315
244 free_req (req); 316 req_free (req);
245 } 317 }
246 318
247 return count; 319 return count;
248} 320}
249 321
… …
268 340
269 sigprocmask (SIG_SETMASK, &oldsigset, 0); 341 sigprocmask (SIG_SETMASK, &oldsigset, 0);
270} 342}
271 343
272static void 344static void
273send_req (aio_req req) 345req_send (aio_req req)
274{ 346{
275 while (started < wanted && nreqs >= started) 347 while (started < wanted && nreqs >= started)
276 start_thread (); 348 start_thread ();
277 349
278 nreqs++; 350 nreqs++;
… …
309{ 381{
310 aio_req req; 382 aio_req req;
311 Newz (0, req, 1, aio_cb); 383 Newz (0, req, 1, aio_cb);
312 req->type = REQ_QUIT; 384 req->type = REQ_QUIT;
313 385
314 send_req (req); 386 req_send (req);
315} 387}
316 388
317static void min_parallel (int nthreads) 389static void min_parallel (int nthreads)
318{ 390{
319 if (wanted < nthreads) 391 if (wanted < nthreads)
… …
499 571
500 if (res < 0 && sbytes) 572 if (res < 0 && sbytes)
501 res = sbytes; 573 res = sbytes;
502 } 574 }
503 575
576# endif
504# else 577#else
505 res = -1; 578 res = -1;
506 errno = ENOSYS; 579 errno = ENOSYS;
507# endif
508#endif 580#endif
509 581
510 if (res < 0 582 if (res < 0
511 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 583 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
512#if __solaris 584#if __solaris
… …
517 { 589 {
518 /* emulate sendfile. this is a major pain in the ass */ 590 /* emulate sendfile. this is a major pain in the ass */
519 char buf[4096]; 591 char buf[4096];
520 res = 0; 592 res = 0;
521 593
522 for (;;) 594 while (count)
523 { 595 {
524 ssize_t cnt; 596 ssize_t cnt;
525 597
526 cnt = pread (ifd, buf, 4096, offset); 598 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
527 599
528 if (cnt <= 0) 600 if (cnt <= 0)
529 { 601 {
530 if (cnt && !res) res = -1; 602 if (cnt && !res) res = -1;
531 break; 603 break;
… …
539 break; 611 break;
540 } 612 }
541 613
542 offset += cnt; 614 offset += cnt;
543 res += cnt; 615 res += cnt;
616 count -= cnt;
544 } 617 }
545 } 618 }
546 619
547 return res; 620 return res;
548} 621}
… …
641 714
642 pthread_mutex_unlock (&reqlock); 715 pthread_mutex_unlock (&reqlock);
643 716
644 errno = 0; /* strictly unnecessary */ 717 errno = 0; /* strictly unnecessary */
645 718
646 type = req->type; 719 if (!req->cancelled)
647
648 switch (type) 720 switch (req->type)
649 { 721 {
650 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 722 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
651 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 723 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
652 724
653 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 725 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
654 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 726 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
655 727
656 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 728 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
657 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 729 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
658 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 730 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
659 731
660 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 732 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
661 case REQ_CLOSE: req->result = close (req->fd); break; 733 case REQ_CLOSE: req->result = close (req->fd); break;
662 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 734 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
663 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 735 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
736 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
737 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
664 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 738 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
665 739
666 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 740 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
667 case REQ_FSYNC: req->result = fsync (req->fd); break; 741 case REQ_FSYNC: req->result = fsync (req->fd); break;
668 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 742 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
669 743
670 case REQ_QUIT: 744 case REQ_QUIT:
671 break; 745 break;
672 746
673 default: 747 default:
674 req->result = ENOSYS; 748 req->result = ENOSYS;
675 break; 749 break;
676 } 750 }
677 751
678 req->errorno = errno; 752 req->errorno = errno;
679 753
680 pthread_mutex_lock (&reslock); 754 pthread_mutex_lock (&reslock);
681 755
… …
735 809
736 while (reqs) 810 while (reqs)
737 { 811 {
738 prv = reqs; 812 prv = reqs;
739 reqs = prv->next; 813 reqs = prv->next;
740 free_req (prv); 814 req_free (prv);
741 } 815 }
742 816
743 reqs = reqe = 0; 817 reqs = reqe = 0;
744 818
745 while (ress) 819 while (ress)
746 { 820 {
747 prv = ress; 821 prv = ress;
748 ress = prv->next; 822 ress = prv->next;
749 free_req (prv); 823 req_free (prv);
750 } 824 }
751 825
752 ress = rese = 0; 826 ress = rese = 0;
753 827
754 close (respipe [0]); 828 close (respipe [0]);
… …
760 834
761#define dREQ \ 835#define dREQ \
762 aio_req req; \ 836 aio_req req; \
763 \ 837 \
764 if (SvOK (callback) && !SvROK (callback)) \ 838 if (SvOK (callback) && !SvROK (callback)) \
765 croak ("clalback must be undef or of reference type"); \ 839 croak ("callback must be undef or of reference type"); \
766 \ 840 \
767 Newz (0, req, 1, aio_cb); \ 841 Newz (0, req, 1, aio_cb); \
768 if (!req) \ 842 if (!req) \
769 croak ("out of memory during aio_req allocation"); \ 843 croak ("out of memory during aio_req allocation"); \
770 \ 844 \
771 req->callback = newSVsv (callback); 845 req->callback = newSVsv (callback)
846
847#define REQ_SEND \
848 req_send (req); \
849 \
850 if (GIMME_V != G_VOID) \
851 XPUSHs (req_sv (req));
772 852
773MODULE = IO::AIO PACKAGE = IO::AIO 853MODULE = IO::AIO PACKAGE = IO::AIO
774 854
775PROTOTYPES: ENABLE 855PROTOTYPES: ENABLE
776 856
777BOOT: 857BOOT:
778{ 858{
859 HV *stash = gv_stashpv ("IO::AIO", 1);
860 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
861 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
862 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
863
779 create_pipe (); 864 create_pipe ();
780 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 865 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
781} 866}
782 867
783void 868void
784min_parallel(nthreads) 869min_parallel (nthreads)
785 int nthreads 870 int nthreads
786 PROTOTYPE: $ 871 PROTOTYPE: $
787 872
788void 873void
789max_parallel(nthreads) 874max_parallel (nthreads)
790 int nthreads 875 int nthreads
791 PROTOTYPE: $ 876 PROTOTYPE: $
792 877
793int 878int
794max_outstanding(nreqs) 879max_outstanding (nreqs)
795 int nreqs 880 int nreqs
796 PROTOTYPE: $ 881 PROTOTYPE: $
797 CODE: 882 CODE:
798 RETVAL = max_outstanding; 883 RETVAL = max_outstanding;
799 max_outstanding = nreqs; 884 max_outstanding = nreqs;
800 885
801void 886void
802aio_open(pathname,flags,mode,callback=&PL_sv_undef) 887aio_open (pathname,flags,mode,callback=&PL_sv_undef)
803 SV * pathname 888 SV * pathname
804 int flags 889 int flags
805 int mode 890 int mode
806 SV * callback 891 SV * callback
807 PROTOTYPE: $$$;$ 892 PROTOTYPE: $$$;$
808 CODE: 893 PPCODE:
809{ 894{
810 dREQ; 895 dREQ;
811 896
812 req->type = REQ_OPEN; 897 req->type = REQ_OPEN;
813 req->data = newSVsv (pathname); 898 req->data = newSVsv (pathname);
814 req->dataptr = SvPVbyte_nolen (req->data); 899 req->dataptr = SvPVbyte_nolen (req->data);
815 req->fd = flags; 900 req->fd = flags;
816 req->mode = mode; 901 req->mode = mode;
817 902
818 send_req (req); 903 REQ_SEND;
819} 904}
820 905
821void 906void
822aio_close(fh,callback=&PL_sv_undef) 907aio_close (fh,callback=&PL_sv_undef)
823 SV * fh 908 SV * fh
824 SV * callback 909 SV * callback
825 PROTOTYPE: $;$ 910 PROTOTYPE: $;$
826 ALIAS: 911 ALIAS:
827 aio_close = REQ_CLOSE 912 aio_close = REQ_CLOSE
828 aio_fsync = REQ_FSYNC 913 aio_fsync = REQ_FSYNC
829 aio_fdatasync = REQ_FDATASYNC 914 aio_fdatasync = REQ_FDATASYNC
830 CODE: 915 PPCODE:
831{ 916{
832 dREQ; 917 dREQ;
833 918
834 req->type = ix; 919 req->type = ix;
835 req->fh = newSVsv (fh); 920 req->fh = newSVsv (fh);
836 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 921 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
837 922
838 send_req (req); 923 REQ_SEND (req);
839} 924}
840 925
841void 926void
842aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 927aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
843 SV * fh 928 SV * fh
844 UV offset 929 UV offset
845 UV length 930 UV length
846 SV * data 931 SV * data
847 UV dataoffset 932 UV dataoffset
848 SV * callback 933 SV * callback
849 ALIAS: 934 ALIAS:
850 aio_read = REQ_READ 935 aio_read = REQ_READ
851 aio_write = REQ_WRITE 936 aio_write = REQ_WRITE
852 PROTOTYPE: $$$$$;$ 937 PROTOTYPE: $$$$$;$
853 CODE: 938 PPCODE:
854{ 939{
855 aio_req req; 940 aio_req req;
856 STRLEN svlen; 941 STRLEN svlen;
857 char *svptr = SvPVbyte (data, svlen); 942 char *svptr = SvPVbyte (data, svlen);
858 943
… …
896 { 981 {
897 SvREADONLY_on (data); 982 SvREADONLY_on (data);
898 req->data2ptr = (void *)data; 983 req->data2ptr = (void *)data;
899 } 984 }
900 985
901 send_req (req); 986 REQ_SEND;
902 } 987 }
903} 988}
904 989
905void 990void
906aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 991aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
907 SV * out_fh 992 SV * out_fh
908 SV * in_fh 993 SV * in_fh
909 UV in_offset 994 UV in_offset
910 UV length 995 UV length
911 SV * callback 996 SV * callback
912 PROTOTYPE: $$$$;$ 997 PROTOTYPE: $$$$;$
913 CODE: 998 PPCODE:
914{ 999{
915 dREQ; 1000 dREQ;
916 1001
917 req->type = REQ_SENDFILE; 1002 req->type = REQ_SENDFILE;
918 req->fh = newSVsv (out_fh); 1003 req->fh = newSVsv (out_fh);
… …
920 req->fh2 = newSVsv (in_fh); 1005 req->fh2 = newSVsv (in_fh);
921 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1006 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
922 req->offset = in_offset; 1007 req->offset = in_offset;
923 req->length = length; 1008 req->length = length;
924 1009
925 send_req (req); 1010 REQ_SEND;
926} 1011}
927 1012
928void 1013void
929aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1014aio_readahead (fh,offset,length,callback=&PL_sv_undef)
930 SV * fh 1015 SV * fh
931 UV offset 1016 UV offset
932 IV length 1017 IV length
933 SV * callback 1018 SV * callback
934 PROTOTYPE: $$$;$ 1019 PROTOTYPE: $$$;$
935 CODE: 1020 PPCODE:
936{ 1021{
937 dREQ; 1022 dREQ;
938 1023
939 req->type = REQ_READAHEAD; 1024 req->type = REQ_READAHEAD;
940 req->fh = newSVsv (fh); 1025 req->fh = newSVsv (fh);
941 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1026 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
942 req->offset = offset; 1027 req->offset = offset;
943 req->length = length; 1028 req->length = length;
944 1029
945 send_req (req); 1030 REQ_SEND;
946} 1031}
947 1032
948void 1033void
949aio_stat(fh_or_path,callback=&PL_sv_undef) 1034aio_stat (fh_or_path,callback=&PL_sv_undef)
950 SV * fh_or_path 1035 SV * fh_or_path
951 SV * callback 1036 SV * callback
952 ALIAS: 1037 ALIAS:
953 aio_stat = REQ_STAT 1038 aio_stat = REQ_STAT
954 aio_lstat = REQ_LSTAT 1039 aio_lstat = REQ_LSTAT
955 CODE: 1040 PPCODE:
956{ 1041{
957 dREQ; 1042 dREQ;
958 1043
959 New (0, req->statdata, 1, Stat_t); 1044 New (0, req->statdata, 1, Stat_t);
960 if (!req->statdata) 1045 if (!req->statdata)
961 { 1046 {
962 free_req (req); 1047 req_free (req);
963 croak ("out of memory during aio_req->statdata allocation"); 1048 croak ("out of memory during aio_req->statdata allocation");
964 } 1049 }
965 1050
966 if (SvPOK (fh_or_path)) 1051 if (SvPOK (fh_or_path))
967 { 1052 {
… …
974 req->type = REQ_FSTAT; 1059 req->type = REQ_FSTAT;
975 req->fh = newSVsv (fh_or_path); 1060 req->fh = newSVsv (fh_or_path);
976 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1061 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
977 } 1062 }
978 1063
979 send_req (req); 1064 REQ_SEND;
980} 1065}
981 1066
982void 1067void
983aio_unlink(pathname,callback=&PL_sv_undef) 1068aio_unlink (pathname,callback=&PL_sv_undef)
984 SV * pathname 1069 SV * pathname
985 SV * callback 1070 SV * callback
986 ALIAS: 1071 ALIAS:
987 aio_unlink = REQ_UNLINK 1072 aio_unlink = REQ_UNLINK
988 aio_rmdir = REQ_RMDIR 1073 aio_rmdir = REQ_RMDIR
1074 aio_readdir = REQ_READDIR
989 CODE: 1075 PPCODE:
990{ 1076{
991 dREQ; 1077 dREQ;
992 1078
993 req->type = ix; 1079 req->type = ix;
994 req->data = newSVsv (pathname); 1080 req->data = newSVsv (pathname);
995 req->dataptr = SvPVbyte_nolen (req->data); 1081 req->dataptr = SvPVbyte_nolen (req->data);
996 1082
997 send_req (req); 1083 REQ_SEND;
998} 1084}
999 1085
1000void 1086void
1001aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1087aio_link (oldpath,newpath,callback=&PL_sv_undef)
1002 SV * oldpath 1088 SV * oldpath
1003 SV * newpath 1089 SV * newpath
1004 SV * callback 1090 SV * callback
1091 ALIAS:
1092 aio_link = REQ_LINK
1093 aio_symlink = REQ_SYMLINK
1094 aio_rename = REQ_RENAME
1005 CODE: 1095 PPCODE:
1006{ 1096{
1007 dREQ; 1097 dREQ;
1008 1098
1009 req->type = REQ_SYMLINK; 1099 req->type = ix;
1010 req->fh = newSVsv (oldpath); 1100 req->fh = newSVsv (oldpath);
1011 req->data2ptr = SvPVbyte_nolen (req->fh); 1101 req->data2ptr = SvPVbyte_nolen (req->fh);
1012 req->data = newSVsv (newpath); 1102 req->data = newSVsv (newpath);
1013 req->dataptr = SvPVbyte_nolen (req->data); 1103 req->dataptr = SvPVbyte_nolen (req->data);
1014 1104
1015 send_req (req); 1105 REQ_SEND;
1016} 1106}
1017 1107
1018void 1108#if 0
1019aio_readdir(pathname,callback=&PL_sv_undef)
1020 SV * pathname
1021 SV * callback
1022 CODE:
1023{
1024 dREQ;
1025
1026 req->type = REQ_READDIR;
1027 req->data = newSVsv (pathname);
1028 req->dataptr = SvPVbyte_nolen (req->data);
1029
1030 send_req (req);
1031}
1032 1109
1110# undocumented, because it does not cancel active requests
1033void 1111void
1112cancel_most_requests ()
1113 PROTOTYPE:
1114 CODE:
1115{
1116 aio_req *req;
1117
1118 pthread_mutex_lock (&reqlock);
1119 for (req = reqs; req; req = req->next)
1120 req->flags |= 1;
1121 pthread_mutex_unlock (&reqlock);
1122
1123 pthread_mutex_lock (&reslock);
1124 for (req = ress; req; req = req->next)
1125 req->flags |= 1;
1126 pthread_mutex_unlock (&reslock);
1127}
1128
1129#endif
1130
1131void
1034flush() 1132flush ()
1035 PROTOTYPE: 1133 PROTOTYPE:
1036 CODE: 1134 CODE:
1037 while (nreqs) 1135 while (nreqs)
1038 { 1136 {
1039 poll_wait (); 1137 poll_wait ();
… …
1079 CODE: 1177 CODE:
1080 RETVAL = nreqs; 1178 RETVAL = nreqs;
1081 OUTPUT: 1179 OUTPUT:
1082 RETVAL 1180 RETVAL
1083 1181
1182MODULE = IO::AIO PACKAGE = IO::AIO::CB
1183
1184void
1185cancel (aio_req_ornot req)
1186 PROTOTYPE:
1187 CODE:
1188 req->cancelled = 1;
1189

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