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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 1.43 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)
… …
642 714
643 pthread_mutex_unlock (&reqlock); 715 pthread_mutex_unlock (&reqlock);
644 716
645 errno = 0; /* strictly unnecessary */ 717 errno = 0; /* strictly unnecessary */
646 718
647 type = req->type; 719 if (!req->cancelled)
648
649 switch (type) 720 switch (req->type)
650 { 721 {
651 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;
652 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;
653 724
654 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;
655 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;
656 727
657 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 728 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
658 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 729 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
659 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 730 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
660 731
661 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;
662 case REQ_CLOSE: req->result = close (req->fd); break; 733 case REQ_CLOSE: req->result = close (req->fd); break;
663 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 734 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
664 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;
665 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 738 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
666 739
667 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 740 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
668 case REQ_FSYNC: req->result = fsync (req->fd); break; 741 case REQ_FSYNC: req->result = fsync (req->fd); break;
669 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 742 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
670 743
671 case REQ_QUIT: 744 case REQ_QUIT:
672 break; 745 break;
673 746
674 default: 747 default:
675 req->result = ENOSYS; 748 req->result = ENOSYS;
676 break; 749 break;
677 } 750 }
678 751
679 req->errorno = errno; 752 req->errorno = errno;
680 753
681 pthread_mutex_lock (&reslock); 754 pthread_mutex_lock (&reslock);
682 755
… …
736 809
737 while (reqs) 810 while (reqs)
738 { 811 {
739 prv = reqs; 812 prv = reqs;
740 reqs = prv->next; 813 reqs = prv->next;
741 free_req (prv); 814 req_free (prv);
742 } 815 }
743 816
744 reqs = reqe = 0; 817 reqs = reqe = 0;
745 818
746 while (ress) 819 while (ress)
747 { 820 {
748 prv = ress; 821 prv = ress;
749 ress = prv->next; 822 ress = prv->next;
750 free_req (prv); 823 req_free (prv);
751 } 824 }
752 825
753 ress = rese = 0; 826 ress = rese = 0;
754 827
755 close (respipe [0]); 828 close (respipe [0]);
… …
761 834
762#define dREQ \ 835#define dREQ \
763 aio_req req; \ 836 aio_req req; \
764 \ 837 \
765 if (SvOK (callback) && !SvROK (callback)) \ 838 if (SvOK (callback) && !SvROK (callback)) \
766 croak ("clalback must be undef or of reference type"); \ 839 croak ("callback must be undef or of reference type"); \
767 \ 840 \
768 Newz (0, req, 1, aio_cb); \ 841 Newz (0, req, 1, aio_cb); \
769 if (!req) \ 842 if (!req) \
770 croak ("out of memory during aio_req allocation"); \ 843 croak ("out of memory during aio_req allocation"); \
771 \ 844 \
772 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));
773 852
774MODULE = IO::AIO PACKAGE = IO::AIO 853MODULE = IO::AIO PACKAGE = IO::AIO
775 854
776PROTOTYPES: ENABLE 855PROTOTYPES: ENABLE
777 856
778BOOT: 857BOOT:
779{ 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
780 create_pipe (); 864 create_pipe ();
781 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 865 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
782} 866}
783 867
784void 868void
785min_parallel(nthreads) 869min_parallel (nthreads)
786 int nthreads 870 int nthreads
787 PROTOTYPE: $ 871 PROTOTYPE: $
788 872
789void 873void
790max_parallel(nthreads) 874max_parallel (nthreads)
791 int nthreads 875 int nthreads
792 PROTOTYPE: $ 876 PROTOTYPE: $
793 877
794int 878int
795max_outstanding(nreqs) 879max_outstanding (nreqs)
796 int nreqs 880 int nreqs
797 PROTOTYPE: $ 881 PROTOTYPE: $
798 CODE: 882 CODE:
799 RETVAL = max_outstanding; 883 RETVAL = max_outstanding;
800 max_outstanding = nreqs; 884 max_outstanding = nreqs;
801 885
802void 886void
803aio_open(pathname,flags,mode,callback=&PL_sv_undef) 887aio_open (pathname,flags,mode,callback=&PL_sv_undef)
804 SV * pathname 888 SV * pathname
805 int flags 889 int flags
806 int mode 890 int mode
807 SV * callback 891 SV * callback
808 PROTOTYPE: $$$;$ 892 PROTOTYPE: $$$;$
809 CODE: 893 PPCODE:
810{ 894{
811 dREQ; 895 dREQ;
812 896
813 req->type = REQ_OPEN; 897 req->type = REQ_OPEN;
814 req->data = newSVsv (pathname); 898 req->data = newSVsv (pathname);
815 req->dataptr = SvPVbyte_nolen (req->data); 899 req->dataptr = SvPVbyte_nolen (req->data);
816 req->fd = flags; 900 req->fd = flags;
817 req->mode = mode; 901 req->mode = mode;
818 902
819 send_req (req); 903 REQ_SEND;
820} 904}
821 905
822void 906void
823aio_close(fh,callback=&PL_sv_undef) 907aio_close (fh,callback=&PL_sv_undef)
824 SV * fh 908 SV * fh
825 SV * callback 909 SV * callback
826 PROTOTYPE: $;$ 910 PROTOTYPE: $;$
827 ALIAS: 911 ALIAS:
828 aio_close = REQ_CLOSE 912 aio_close = REQ_CLOSE
829 aio_fsync = REQ_FSYNC 913 aio_fsync = REQ_FSYNC
830 aio_fdatasync = REQ_FDATASYNC 914 aio_fdatasync = REQ_FDATASYNC
831 CODE: 915 PPCODE:
832{ 916{
833 dREQ; 917 dREQ;
834 918
835 req->type = ix; 919 req->type = ix;
836 req->fh = newSVsv (fh); 920 req->fh = newSVsv (fh);
837 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 921 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
838 922
839 send_req (req); 923 REQ_SEND (req);
840} 924}
841 925
842void 926void
843aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 927aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
844 SV * fh 928 SV * fh
845 UV offset 929 UV offset
846 UV length 930 UV length
847 SV * data 931 SV * data
848 UV dataoffset 932 UV dataoffset
849 SV * callback 933 SV * callback
850 ALIAS: 934 ALIAS:
851 aio_read = REQ_READ 935 aio_read = REQ_READ
852 aio_write = REQ_WRITE 936 aio_write = REQ_WRITE
853 PROTOTYPE: $$$$$;$ 937 PROTOTYPE: $$$$$;$
854 CODE: 938 PPCODE:
855{ 939{
856 aio_req req; 940 aio_req req;
857 STRLEN svlen; 941 STRLEN svlen;
858 char *svptr = SvPVbyte (data, svlen); 942 char *svptr = SvPVbyte (data, svlen);
859 943
… …
897 { 981 {
898 SvREADONLY_on (data); 982 SvREADONLY_on (data);
899 req->data2ptr = (void *)data; 983 req->data2ptr = (void *)data;
900 } 984 }
901 985
902 send_req (req); 986 REQ_SEND;
903 } 987 }
904} 988}
905 989
906void 990void
907aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 991aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
908 SV * out_fh 992 SV * out_fh
909 SV * in_fh 993 SV * in_fh
910 UV in_offset 994 UV in_offset
911 UV length 995 UV length
912 SV * callback 996 SV * callback
913 PROTOTYPE: $$$$;$ 997 PROTOTYPE: $$$$;$
914 CODE: 998 PPCODE:
915{ 999{
916 dREQ; 1000 dREQ;
917 1001
918 req->type = REQ_SENDFILE; 1002 req->type = REQ_SENDFILE;
919 req->fh = newSVsv (out_fh); 1003 req->fh = newSVsv (out_fh);
… …
921 req->fh2 = newSVsv (in_fh); 1005 req->fh2 = newSVsv (in_fh);
922 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1006 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
923 req->offset = in_offset; 1007 req->offset = in_offset;
924 req->length = length; 1008 req->length = length;
925 1009
926 send_req (req); 1010 REQ_SEND;
927} 1011}
928 1012
929void 1013void
930aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1014aio_readahead (fh,offset,length,callback=&PL_sv_undef)
931 SV * fh 1015 SV * fh
932 UV offset 1016 UV offset
933 IV length 1017 IV length
934 SV * callback 1018 SV * callback
935 PROTOTYPE: $$$;$ 1019 PROTOTYPE: $$$;$
936 CODE: 1020 PPCODE:
937{ 1021{
938 dREQ; 1022 dREQ;
939 1023
940 req->type = REQ_READAHEAD; 1024 req->type = REQ_READAHEAD;
941 req->fh = newSVsv (fh); 1025 req->fh = newSVsv (fh);
942 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1026 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
943 req->offset = offset; 1027 req->offset = offset;
944 req->length = length; 1028 req->length = length;
945 1029
946 send_req (req); 1030 REQ_SEND;
947} 1031}
948 1032
949void 1033void
950aio_stat(fh_or_path,callback=&PL_sv_undef) 1034aio_stat (fh_or_path,callback=&PL_sv_undef)
951 SV * fh_or_path 1035 SV * fh_or_path
952 SV * callback 1036 SV * callback
953 ALIAS: 1037 ALIAS:
954 aio_stat = REQ_STAT 1038 aio_stat = REQ_STAT
955 aio_lstat = REQ_LSTAT 1039 aio_lstat = REQ_LSTAT
956 CODE: 1040 PPCODE:
957{ 1041{
958 dREQ; 1042 dREQ;
959 1043
960 New (0, req->statdata, 1, Stat_t); 1044 New (0, req->statdata, 1, Stat_t);
961 if (!req->statdata) 1045 if (!req->statdata)
962 { 1046 {
963 free_req (req); 1047 req_free (req);
964 croak ("out of memory during aio_req->statdata allocation"); 1048 croak ("out of memory during aio_req->statdata allocation");
965 } 1049 }
966 1050
967 if (SvPOK (fh_or_path)) 1051 if (SvPOK (fh_or_path))
968 { 1052 {
… …
975 req->type = REQ_FSTAT; 1059 req->type = REQ_FSTAT;
976 req->fh = newSVsv (fh_or_path); 1060 req->fh = newSVsv (fh_or_path);
977 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1061 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
978 } 1062 }
979 1063
980 send_req (req); 1064 REQ_SEND;
981} 1065}
982 1066
983void 1067void
984aio_unlink(pathname,callback=&PL_sv_undef) 1068aio_unlink (pathname,callback=&PL_sv_undef)
985 SV * pathname 1069 SV * pathname
986 SV * callback 1070 SV * callback
987 ALIAS: 1071 ALIAS:
988 aio_unlink = REQ_UNLINK 1072 aio_unlink = REQ_UNLINK
989 aio_rmdir = REQ_RMDIR 1073 aio_rmdir = REQ_RMDIR
1074 aio_readdir = REQ_READDIR
990 CODE: 1075 PPCODE:
991{ 1076{
992 dREQ; 1077 dREQ;
993 1078
994 req->type = ix; 1079 req->type = ix;
995 req->data = newSVsv (pathname); 1080 req->data = newSVsv (pathname);
996 req->dataptr = SvPVbyte_nolen (req->data); 1081 req->dataptr = SvPVbyte_nolen (req->data);
997 1082
998 send_req (req); 1083 REQ_SEND;
999} 1084}
1000 1085
1001void 1086void
1002aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1087aio_link (oldpath,newpath,callback=&PL_sv_undef)
1003 SV * oldpath 1088 SV * oldpath
1004 SV * newpath 1089 SV * newpath
1005 SV * callback 1090 SV * callback
1091 ALIAS:
1092 aio_link = REQ_LINK
1093 aio_symlink = REQ_SYMLINK
1094 aio_rename = REQ_RENAME
1006 CODE: 1095 PPCODE:
1007{ 1096{
1008 dREQ; 1097 dREQ;
1009 1098
1010 req->type = REQ_SYMLINK; 1099 req->type = ix;
1011 req->fh = newSVsv (oldpath); 1100 req->fh = newSVsv (oldpath);
1012 req->data2ptr = SvPVbyte_nolen (req->fh); 1101 req->data2ptr = SvPVbyte_nolen (req->fh);
1013 req->data = newSVsv (newpath); 1102 req->data = newSVsv (newpath);
1014 req->dataptr = SvPVbyte_nolen (req->data); 1103 req->dataptr = SvPVbyte_nolen (req->data);
1015 1104
1016 send_req (req); 1105 REQ_SEND;
1017} 1106}
1018 1107
1019void 1108#if 0
1020aio_readdir(pathname,callback=&PL_sv_undef)
1021 SV * pathname
1022 SV * callback
1023 CODE:
1024{
1025 dREQ;
1026
1027 req->type = REQ_READDIR;
1028 req->data = newSVsv (pathname);
1029 req->dataptr = SvPVbyte_nolen (req->data);
1030
1031 send_req (req);
1032}
1033 1109
1110# undocumented, because it does not cancel active requests
1034void 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
1035flush() 1132flush ()
1036 PROTOTYPE: 1133 PROTOTYPE:
1037 CODE: 1134 CODE:
1038 while (nreqs) 1135 while (nreqs)
1039 { 1136 {
1040 poll_wait (); 1137 poll_wait ();
… …
1080 CODE: 1177 CODE:
1081 RETVAL = nreqs; 1178 RETVAL = nreqs;
1082 OUTPUT: 1179 OUTPUT:
1083 RETVAL 1180 RETVAL
1084 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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