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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.115 by root, Sat May 10 18:06:41 2008 UTC vs.
Revision 1.127 by root, Tue Sep 30 13:17:32 2008 UTC

… …
12#include <sys/types.h> 12#include <sys/types.h>
13#include <sys/stat.h> 13#include <sys/stat.h>
14#include <limits.h> 14#include <limits.h>
15#include <fcntl.h> 15#include <fcntl.h>
16#include <sched.h> 16#include <sched.h>
17
18/* perl namespace pollution */
19#undef VERSION
17 20
18#ifdef _WIN32 21#ifdef _WIN32
19 22
20# define EIO_STRUCT_DIRENT Direntry_t 23# define EIO_STRUCT_DIRENT Direntry_t
21# undef malloc 24# undef malloc
… …
62# include <signal.h> 65# include <signal.h>
63# define EIO_STRUCT_DIRENT struct dirent 66# define EIO_STRUCT_DIRENT struct dirent
64 67
65#endif 68#endif
66 69
70/* perl stupidly overrides readdir and maybe others */
71/* with thread-unsafe versions, imagine that :( */
72#undef readdir
73#undef opendir
74#undef closedir
75
67#define EIO_STRUCT_STAT Stat_t 76#define EIO_STRUCT_STAT Stat_t
68 77
69/* use NV for 32 bit perls as it allows larger offsets */ 78/* use NV for 32 bit perls as it allows larger offsets */
70#if IVSIZE >= 8 79#if IVSIZE >= 8
71# define SvVAL64 SvIV 80# define SvVAL64 SvIV
72#else 81#else
73# define SvVAL64 SvNV 82# define SvVAL64 SvNV
74#endif 83#endif
75 84
85/*****************************************************************************/
86
87#if __GNUC__ >= 3
88# define expect(expr,value) __builtin_expect ((expr),(value))
89#else
90# define expect(expr,value) (expr)
91#endif
92
93#define expect_false(expr) expect ((expr) != 0, 0)
94#define expect_true(expr) expect ((expr) != 0, 1)
95
96/*****************************************************************************/
97
76static HV *stash; 98static HV *stash;
77typedef SV SV8; /* byte-sv, used for argument-checking */ 99typedef SV SV8; /* byte-sv, used for argument-checking */
78 100
79#define AIO_REQ_KLASS "IO::AIO::REQ" 101#define AIO_REQ_KLASS "IO::AIO::REQ"
80#define AIO_GRP_KLASS "IO::AIO::GRP" 102#define AIO_GRP_KLASS "IO::AIO::GRP"
81 103
82#define EIO_COMMON \ 104#define EIO_REQ_MEMBERS \
83 SV *callback; \ 105 SV *callback; \
84 SV *sv1, *sv2; \ 106 SV *sv1, *sv2; \
85 STRLEN stroffset; \ 107 STRLEN stroffset; \
86 SV *self 108 SV *self;
109
110#define EIO_NO_WRAPPERS 1
87 111
88#include "libeio/eio.h" 112#include "libeio/eio.h"
89 113
90static int req_invoke (eio_req *req); 114static int req_invoke (eio_req *req);
91#define EIO_FINISH(req) req_invoke (req) 115#define EIO_FINISH(req) req_invoke (req)
… …
101#include "libeio/eio.c" 125#include "libeio/eio.c"
102 126
103typedef eio_req *aio_req; 127typedef eio_req *aio_req;
104typedef eio_req *aio_req_ornot; 128typedef eio_req *aio_req_ornot;
105 129
106static unsigned int max_outstanding = 0x7fffffff; 130static SV *on_next_submit;
107 131static int next_pri = EIO_PRI_DEFAULT;
108static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; 132static int max_outstanding;
109 133
110static int respipe_osf [2], respipe [2] = { -1, -1 }; 134static int respipe_osf [2], respipe [2] = { -1, -1 };
111 135
112static void req_destroy (aio_req req); 136static void req_destroy (aio_req req);
113static void req_cancel (aio_req req); 137static void req_cancel (aio_req req);
… …
166 FREETMPS; 190 FREETMPS;
167 LEAVE; 191 LEAVE;
168 } 192 }
169} 193}
170 194
195static void req_submit (eio_req *req)
196{
197 eio_submit (req);
198
199 if (expect_false (on_next_submit))
200 {
201 dSP;
202 SV *cb = sv_2mortal (on_next_submit);
203
204 on_next_submit = 0;
205
206 PUSHMARK (SP);
207 PUTBACK;
208 call_sv (cb, G_DISCARD | G_EVAL);
209 }
210}
211
171static int req_invoke (eio_req *req) 212static int req_invoke (eio_req *req)
172{ 213{
173 dSP; 214 dSP;
174 215
175 if (req->flags & FLAG_SV2_RO_OFF) 216 if (req->flags & FLAG_SV2_RO_OFF)
… …
260 case EIO_BUSY: 301 case EIO_BUSY:
261 break; 302 break;
262 303
263 case EIO_READLINK: 304 case EIO_READLINK:
264 if (req->result > 0) 305 if (req->result > 0)
265 { 306 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266 SvCUR_set (req->sv2, req->result);
267 *SvEND (req->sv2) = 0;
268 PUSHs (req->sv2);
269 }
270 break; 307 break;
271 308
272 case EIO_STAT: 309 case EIO_STAT:
273 case EIO_LSTAT: 310 case EIO_LSTAT:
274 case EIO_FSTAT: 311 case EIO_FSTAT:
… …
394 X_UNLOCK (reslock); 431 X_UNLOCK (reslock);
395 432
396 if (size) 433 if (size)
397 return; 434 return;
398 435
399 maybe_start_thread (); 436 etp_maybe_start_thread ();
400 437
401 FD_ZERO (&rfd); 438 FD_ZERO (&rfd);
402 FD_SET (respipe [0], &rfd); 439 FD_SET (respipe [0], &rfd);
403 440
404 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); 441 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405 } 442 }
406} 443}
407 444
408static int poll_cb (void) 445static int poll_cb (void)
409{ 446{
447 for (;;)
448 {
410 int res = eio_poll (); 449 int res = eio_poll ();
411 450
412 if (res > 0) 451 if (res > 0)
413 croak (0); 452 croak (0);
414 453
454 if (!max_outstanding || max_outstanding > eio_nreqs ())
415 return res; 455 return res;
456
457 poll_wait ();
458 }
459}
460
461static void atfork_child (void)
462{
463 create_respipe ();
416} 464}
417 465
418#define dREQ \ 466#define dREQ \
419 aio_req req; \ 467 aio_req req; \
420 int req_pri = next_pri; \ 468 int req_pri = next_pri; \
421 next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \ 469 next_pri = EIO_PRI_DEFAULT; \
422 \ 470 \
423 if (SvOK (callback) && !SvROK (callback)) \ 471 if (SvOK (callback) && !SvROK (callback)) \
424 croak ("callback must be undef or of reference type"); \ 472 croak ("callback must be undef or of reference type"); \
425 \ 473 \
426 Newz (0, req, 1, eio_req); \ 474 Newz (0, req, 1, eio_req); \
… …
429 \ 477 \
430 req->callback = newSVsv (callback); \ 478 req->callback = newSVsv (callback); \
431 req->pri = req_pri 479 req->pri = req_pri
432 480
433#define REQ_SEND \ 481#define REQ_SEND \
482 PUTBACK; \
434 eio_submit (req); \ 483 req_submit (req); \
484 SPAGAIN; \
435 \ 485 \
436 if (GIMME_V != G_VOID) \ 486 if (GIMME_V != G_VOID) \
437 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 487 XPUSHs (req_sv (req, AIO_REQ_KLASS));
438 488
439MODULE = IO::AIO PACKAGE = IO::AIO 489MODULE = IO::AIO PACKAGE = IO::AIO
… …
447 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 497 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
448 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 498 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
449 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 499 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
450 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 500 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
451 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 501 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
452#ifdef _WIN32 502#ifndef _WIN32
453 X_MUTEX_CHECK (wrklock);
454 X_MUTEX_CHECK (reslock);
455 X_MUTEX_CHECK (reqlock);
456 X_MUTEX_CHECK (reqwait);
457 X_MUTEX_CHECK (preadwritelock);
458 X_MUTEX_CHECK (readdirlock);
459
460 X_COND_CHECK (reqwait);
461#else
462 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 503 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
463#endif 504#endif
464 505
465 create_respipe (); 506 create_respipe ();
466 507
467 if (eio_init (want_poll, done_poll) < 0) 508 if (eio_init (want_poll, done_poll) < 0)
468 croak ("IO::AIO: unable to initialise eio library"); 509 croak ("IO::AIO: unable to initialise eio library");
510
511 /* atfork child called in fifo order, so before eio's handler */
512 X_THREAD_ATFORK (0, 0, atfork_child);
469} 513}
470 514
471void 515void
472max_poll_reqs (int nreqs) 516max_poll_reqs (int nreqs)
473 PROTOTYPE: $ 517 PROTOTYPE: $
… …
630 PPCODE: 674 PPCODE:
631{ 675{
632 SV *data; 676 SV *data;
633 dREQ; 677 dREQ;
634 678
635 data = newSV (NAME_MAX);
636 SvPOK_on (data);
637
638 req->type = EIO_READLINK; 679 req->type = EIO_READLINK;
639 req->sv1 = newSVsv (path); 680 req->sv1 = newSVsv (path);
640 req->ptr1 = SvPVbyte_nolen (req->sv1); 681 req->ptr1 = SvPVbyte_nolen (req->sv1);
641 req->sv2 = data;
642 req->ptr2 = SvPVbyte_nolen (data);
643 682
644 REQ_SEND; 683 REQ_SEND;
645} 684}
646 685
647void 686void
… …
685 aio_lstat = EIO_LSTAT 724 aio_lstat = EIO_LSTAT
686 PPCODE: 725 PPCODE:
687{ 726{
688 dREQ; 727 dREQ;
689 728
690 req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
691 if (!req->ptr2)
692 {
693 req_destroy (req);
694 croak ("out of memory during aio_stat statdata allocation");
695 }
696
697 req->flags |= EIO_FLAG_PTR2_FREE;
698 req->sv1 = newSVsv (fh_or_path); 729 req->sv1 = newSVsv (fh_or_path);
699 730
700 if (SvPOK (fh_or_path)) 731 if (SvPOK (req->sv1))
701 { 732 {
702 req->type = ix; 733 req->type = ix;
703 req->ptr1 = SvPVbyte_nolen (req->sv1); 734 req->ptr1 = SvPVbyte_nolen (req->sv1);
704 } 735 }
705 else 736 else
… …
719 750
720 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 751 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
721 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 752 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
722 req->sv1 = newSVsv (fh_or_path); 753 req->sv1 = newSVsv (fh_or_path);
723 754
724 if (SvPOK (fh_or_path)) 755 if (SvPOK (req->sv1))
725 { 756 {
726 req->type = EIO_UTIME; 757 req->type = EIO_UTIME;
727 req->ptr1 = SvPVbyte_nolen (req->sv1); 758 req->ptr1 = SvPVbyte_nolen (req->sv1);
728 } 759 }
729 else 760 else
… …
742 dREQ; 773 dREQ;
743 774
744 req->sv1 = newSVsv (fh_or_path); 775 req->sv1 = newSVsv (fh_or_path);
745 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 776 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
746 777
747 if (SvPOK (fh_or_path)) 778 if (SvPOK (req->sv1))
748 { 779 {
749 req->type = EIO_TRUNCATE; 780 req->type = EIO_TRUNCATE;
750 req->ptr1 = SvPVbyte_nolen (req->sv1); 781 req->ptr1 = SvPVbyte_nolen (req->sv1);
751 } 782 }
752 else 783 else
… …
760 791
761void 792void
762aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 793aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
763 ALIAS: 794 ALIAS:
764 aio_chmod = EIO_CHMOD 795 aio_chmod = EIO_CHMOD
765 aio_fchmod = EIO_FCHMOD
766 aio_mkdir = EIO_MKDIR 796 aio_mkdir = EIO_MKDIR
767 PPCODE: 797 PPCODE:
768{ 798{
769 dREQ; 799 dREQ;
770 800
771 req->type = ix;
772 req->int2 = mode; 801 req->int2 = mode;
773 req->sv1 = newSVsv (fh_or_path); 802 req->sv1 = newSVsv (fh_or_path);
774 803
775 if (ix == EIO_FCHMOD) 804 if (SvPOK (req->sv1))
776 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 805 {
806 req->type = ix;
807 req->ptr1 = SvPVbyte_nolen (req->sv1);
808 }
777 else 809 else
778 req->ptr1 = SvPVbyte_nolen (req->sv1); 810 {
811 req->type = EIO_FCHMOD;
812 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
813 }
779 814
780 REQ_SEND; 815 REQ_SEND;
781} 816}
782 817
783void 818void
… …
788 823
789 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 824 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
790 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 825 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
791 req->sv1 = newSVsv (fh_or_path); 826 req->sv1 = newSVsv (fh_or_path);
792 827
793 if (SvPOK (fh_or_path)) 828 if (SvPOK (req->sv1))
794 { 829 {
795 req->type = EIO_CHOWN; 830 req->type = EIO_CHOWN;
796 req->ptr1 = SvPVbyte_nolen (req->sv1); 831 req->ptr1 = SvPVbyte_nolen (req->sv1);
797 } 832 }
798 else 833 else
… …
874{ 909{
875 dREQ; 910 dREQ;
876 911
877 req->type = EIO_GROUP; 912 req->type = EIO_GROUP;
878 913
879 eio_submit (req); 914 req_submit (req);
880 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 915 XPUSHs (req_sv (req, AIO_GRP_KLASS));
881} 916}
882 917
883void 918void
884aio_nop (SV *callback=&PL_sv_undef) 919aio_nop (SV *callback=&PL_sv_undef)
… …
896 931
897int 932int
898aioreq_pri (int pri = 0) 933aioreq_pri (int pri = 0)
899 PROTOTYPE: ;$ 934 PROTOTYPE: ;$
900 CODE: 935 CODE:
901 RETVAL = next_pri - EIO_PRI_BIAS; 936 RETVAL = next_pri;
902 if (items > 0) 937 if (items > 0)
903 { 938 {
904 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 939 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
905 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; 940 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
906 next_pri = pri + EIO_PRI_BIAS; 941 next_pri = pri;
907 } 942 }
908 OUTPUT: 943 OUTPUT:
909 RETVAL 944 RETVAL
910 945
911void 946void
912aioreq_nice (int nice = 0) 947aioreq_nice (int nice = 0)
913 CODE: 948 CODE:
914 nice = next_pri - nice; 949 nice = next_pri - nice;
915 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; 950 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
916 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 951 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
917 next_pri = nice + EIO_PRI_BIAS; 952 next_pri = nice;
918 953
919void 954void
920flush () 955flush ()
921 PROTOTYPE: 956 PROTOTYPE:
922 CODE: 957 CODE:
923 while (nreqs) 958 while (eio_nreqs ())
924 { 959 {
925 poll_wait (); 960 poll_wait ();
926 poll_cb (); 961 poll_cb ();
927 } 962 }
928 963
… …
983 1018
984int 1019int
985nthreads() 1020nthreads()
986 PROTOTYPE: 1021 PROTOTYPE:
987 CODE: 1022 CODE:
988 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1023 RETVAL = eio_nthreads ();
989 RETVAL = started;
990 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
991 OUTPUT: 1024 OUTPUT:
992 RETVAL 1025 RETVAL
1026
1027void _on_next_submit (SV *cb)
1028 CODE:
1029 SvREFCNT_dec (on_next_submit);
1030 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
993 1031
994PROTOTYPES: DISABLE 1032PROTOTYPES: DISABLE
995 1033
996MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1034MODULE = IO::AIO PACKAGE = IO::AIO::REQ
997 1035

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