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Comparing libeio/eio.c (file contents):
Revision 1.2 by root, Sat May 10 23:33:40 2008 UTC vs.
Revision 1.12 by root, Tue May 13 18:54:52 2008 UTC

1#include "eio.h" 1#include "eio.h"
2#include "xthread.h" 2#include "xthread.h"
3 3
4#include <errno.h> 4#include <errno.h>
5
6#include "EXTERN.h"
7#include "perl.h"
8#include "XSUB.h"
9
10#include <stddef.h> 5#include <stddef.h>
11#include <stdlib.h> 6#include <stdlib.h>
7#include <string.h>
12#include <errno.h> 8#include <errno.h>
13#include <sys/types.h> 9#include <sys/types.h>
14#include <sys/stat.h> 10#include <sys/stat.h>
15#include <limits.h> 11#include <limits.h>
16#include <fcntl.h> 12#include <fcntl.h>
17#include <sched.h> 13#include <assert.h>
18 14
19#ifndef EIO_FINISH 15#ifndef EIO_FINISH
20# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 16# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0
21#endif 17#endif
22 18
… …
38# include <sys/time.h> 34# include <sys/time.h>
39# include <sys/select.h> 35# include <sys/select.h>
40# include <unistd.h> 36# include <unistd.h>
41# include <utime.h> 37# include <utime.h>
42# include <signal.h> 38# include <signal.h>
39# include <dirent.h>
43 40
44# ifndef EIO_STRUCT_DIRENT 41# ifndef EIO_STRUCT_DIRENT
45# define EIO_STRUCT_DIRENT struct dirent 42# define EIO_STRUCT_DIRENT struct dirent
46# endif 43# endif
47 44
48#endif 45#endif
49
50# ifndef EIO_STRUCT_STAT
51# define EIO_STRUCT_STAT struct stat
52# endif
53 46
54#if HAVE_SENDFILE 47#if HAVE_SENDFILE
55# if __linux 48# if __linux
56# include <sys/sendfile.h> 49# include <sys/sendfile.h>
57# elif __freebsd 50# elif __freebsd
… …
80#define dBUF \ 73#define dBUF \
81 char *eio_buf; \ 74 char *eio_buf; \
82 X_LOCK (wrklock); \ 75 X_LOCK (wrklock); \
83 self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ 76 self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \
84 X_UNLOCK (wrklock); \ 77 X_UNLOCK (wrklock); \
78 errno = ENOMEM; \
85 if (!eio_buf) \ 79 if (!eio_buf) \
86 return -1; 80 return -1;
87 81
88#define EIO_TICKS ((1000000 + 1023) >> 10) 82#define EIO_TICKS ((1000000 + 1023) >> 10)
89 83
… …
98{ 92{
99 return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS 93 return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS
100 + ((tv2->tv_usec - tv1->tv_usec) >> 10); 94 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
101} 95}
102 96
103static unsigned int started, idle, wanted; 97static unsigned int started, idle, wanted = 4;
104 98
105/* worker threads management */ 99/* worker threads management */
106static mutex_t wrklock = X_MUTEX_INIT; 100static mutex_t wrklock = X_MUTEX_INIT;
107 101
108typedef struct worker { 102typedef struct worker
103{
109 /* locked by wrklock */ 104 /* locked by wrklock */
110 struct worker *prev, *next; 105 struct worker *prev, *next;
111 106
112 thread_t tid; 107 thread_t tid;
113 108
… …
274 return 0; 269 return 0;
275} 270}
276 271
277void eio_destroy (eio_req *req) 272void eio_destroy (eio_req *req)
278{ 273{
274 if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1);
279 if ((req)->flags & EIO_FLAG_PTR2_FREE) 275 if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2);
280 free (req->ptr2);
281 276
282 EIO_DESTROY (req); 277 EIO_DESTROY (req);
283} 278}
284 279
285static int eio_finish (eio_req *req) 280static int eio_finish (eio_req *req)
… …
315 eio_cancel (grp); 310 eio_cancel (grp);
316} 311}
317 312
318void eio_cancel (eio_req *req) 313void eio_cancel (eio_req *req)
319{ 314{
315 X_LOCK (wrklock);
320 req->flags |= EIO_FLAG_CANCELLED; 316 req->flags |= EIO_FLAG_CANCELLED;
317 X_UNLOCK (wrklock);
321 318
322 eio_grp_cancel (req); 319 eio_grp_cancel (req);
323} 320}
324 321
325X_THREAD_PROC (eio_proc); 322X_THREAD_PROC (eio_proc);
326 323
327static void start_thread (void) 324static void start_thread (void)
328{ 325{
329 worker *wrk = calloc (1, sizeof (worker)); 326 worker *wrk = calloc (1, sizeof (worker));
330 327
331 if (!wrk) 328 /*TODO*/
332 croak ("unable to allocate worker thread data"); 329 assert (("unable to allocate worker thread data", wrk));
333 330
334 X_LOCK (wrklock); 331 X_LOCK (wrklock);
335 332
336 if (thread_create (&wrk->tid, eio_proc, (void *)wrk)) 333 if (thread_create (&wrk->tid, eio_proc, (void *)wrk))
337 { 334 {
… …
359 start_thread (); 356 start_thread ();
360} 357}
361 358
362void eio_submit (eio_req *req) 359void eio_submit (eio_req *req)
363{ 360{
361 req->pri += EIO_PRI_BIAS;
362
363 if (req->pri < EIO_PRI_MIN + EIO_PRI_BIAS) req->pri = EIO_PRI_MIN + EIO_PRI_BIAS;
364 if (req->pri > EIO_PRI_MAX + EIO_PRI_BIAS) req->pri = EIO_PRI_MAX + EIO_PRI_BIAS;
365
364 ++nreqs; 366 ++nreqs;
365 367
366 X_LOCK (reqlock); 368 X_LOCK (reqlock);
367 ++nready; 369 ++nready;
368 reqq_push (&req_queue, req); 370 reqq_push (&req_queue, req);
… …
486 488
487/*****************************************************************************/ 489/*****************************************************************************/
488/* work around various missing functions */ 490/* work around various missing functions */
489 491
490#if !HAVE_PREADWRITE 492#if !HAVE_PREADWRITE
491# define pread aio_pread 493# define pread eio__pread
492# define pwrite aio_pwrite 494# define pwrite eio__pwrite
493 495
494/* 496/*
495 * make our pread/pwrite safe against themselves, but not against 497 * make our pread/pwrite safe against themselves, but not against
496 * normal read/write by using a mutex. slows down execution a lot, 498 * normal read/write by using a mutex. slows down execution a lot,
497 * but that's your problem, not mine. 499 * but that's your problem, not mine.
498 */ 500 */
499static mutex_t preadwritelock = X_MUTEX_INIT; 501static mutex_t preadwritelock = X_MUTEX_INIT;
500 502
501static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 503static ssize_t
504eio__pread (int fd, void *buf, size_t count, off_t offset)
502{ 505{
503 ssize_t res; 506 ssize_t res;
504 off_t ooffset; 507 off_t ooffset;
505 508
506 X_LOCK (preadwritelock); 509 X_LOCK (preadwritelock);
… …
511 X_UNLOCK (preadwritelock); 514 X_UNLOCK (preadwritelock);
512 515
513 return res; 516 return res;
514} 517}
515 518
516static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 519static ssize_t
520eio__pwrite (int fd, void *buf, size_t count, off_t offset)
517{ 521{
518 ssize_t res; 522 ssize_t res;
519 off_t ooffset; 523 off_t ooffset;
520 524
521 X_LOCK (preadwritelock); 525 X_LOCK (preadwritelock);
… …
529} 533}
530#endif 534#endif
531 535
532#ifndef HAVE_FUTIMES 536#ifndef HAVE_FUTIMES
533 537
534# define utimes(path,times) aio_utimes (path, times) 538# define utimes(path,times) eio__utimes (path, times)
535# define futimes(fd,times) aio_futimes (fd, times) 539# define futimes(fd,times) eio__futimes (fd, times)
536 540
541static int
537static int aio_utimes (const char *filename, const struct timeval times[2]) 542eio__utimes (const char *filename, const struct timeval times[2])
538{ 543{
539 if (times) 544 if (times)
540 { 545 {
541 struct utimbuf buf; 546 struct utimbuf buf;
542 547
… …
547 } 552 }
548 else 553 else
549 return utime (filename, 0); 554 return utime (filename, 0);
550} 555}
551 556
552static int aio_futimes (int fd, const struct timeval tv[2]) 557static int eio__futimes (int fd, const struct timeval tv[2])
553{ 558{
554 errno = ENOSYS; 559 errno = ENOSYS;
555 return -1; 560 return -1;
556} 561}
557 562
… …
560#if !HAVE_FDATASYNC 565#if !HAVE_FDATASYNC
561# define fdatasync fsync 566# define fdatasync fsync
562#endif 567#endif
563 568
564#if !HAVE_READAHEAD 569#if !HAVE_READAHEAD
565# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 570# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
566 571
572static ssize_t
567static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 573eio__readahead (int fd, off_t offset, size_t count, worker *self)
568{ 574{
569 size_t todo = count; 575 size_t todo = count;
570 dBUF; 576 dBUF;
571 577
572 while (todo > 0) 578 while (todo > 0)
573 { 579 {
574 size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE; 580 size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE;
575 581
576 pread (fd, aio_buf, len, offset); 582 pread (fd, eio_buf, len, offset);
577 offset += len; 583 offset += len;
578 todo -= len; 584 todo -= len;
579 } 585 }
580 586
581 errno = 0; 587 errno = 0;
… …
583} 589}
584 590
585#endif 591#endif
586 592
587#if !HAVE_READDIR_R 593#if !HAVE_READDIR_R
588# define readdir_r aio_readdir_r 594# define readdir_r eio__readdir_r
589 595
590static mutex_t readdirlock = X_MUTEX_INIT; 596static mutex_t readdirlock = X_MUTEX_INIT;
591 597
592static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 598static int
599eio__readdir_r (DIR *dirp, EIO_STRUCT_DIRENT *ent, EIO_STRUCT_DIRENT **res)
593{ 600{
594 X_DIRENT *e; 601 EIO_STRUCT_DIRENT *e;
595 int errorno; 602 int errorno;
596 603
597 X_LOCK (readdirlock); 604 X_LOCK (readdirlock);
598 605
599 e = readdir (dirp); 606 e = readdir (dirp);
… …
613 return e ? 0 : -1; 620 return e ? 0 : -1;
614} 621}
615#endif 622#endif
616 623
617/* sendfile always needs emulation */ 624/* sendfile always needs emulation */
625static ssize_t
618static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 626eio__sendfile (int ofd, int ifd, off_t offset, size_t count, worker *self)
619{ 627{
620 ssize_t res; 628 ssize_t res;
621 629
622 if (!count) 630 if (!count)
623 return 0; 631 return 0;
… …
706 714
707 return res; 715 return res;
708} 716}
709 717
710/* read a full directory */ 718/* read a full directory */
719static void
711static void scandir_ (eio_req *req, worker *self) 720eio__scandir (eio_req *req, worker *self)
712{ 721{
713 DIR *dirp; 722 DIR *dirp;
714 union 723 union
715 { 724 {
716 EIO_STRUCT_DIRENT d; 725 EIO_STRUCT_DIRENT d;
… …
768 req->result = res; 777 req->result = res;
769} 778}
770 779
771/*****************************************************************************/ 780/*****************************************************************************/
772 781
782#define ALLOC(len) \
783 if (!req->ptr2) \
784 { \
785 X_LOCK (wrklock); \
786 req->flags |= EIO_FLAG_PTR2_FREE; \
787 X_UNLOCK (wrklock); \
788 req->ptr2 = malloc (len); \
789 if (!req->ptr2) \
790 { \
791 errno = ENOMEM; \
792 req->result = -1; \
793 break; \
794 } \
795 }
796
773X_THREAD_PROC (eio_proc) 797X_THREAD_PROC (eio_proc)
774{ 798{
775 eio_req *req; 799 eio_req *req;
776 struct timespec ts; 800 struct timespec ts;
777 worker *self = (worker *)thr_arg; 801 worker *self = (worker *)thr_arg;
… …
821 errno = 0; /* strictly unnecessary */ 845 errno = 0; /* strictly unnecessary */
822 846
823 if (!EIO_CANCELLED (req)) 847 if (!EIO_CANCELLED (req))
824 switch (req->type) 848 switch (req->type)
825 { 849 {
850 case EIO_READ: ALLOC (req->size);
826 case EIO_READ: req->result = req->offs >= 0 851 req->result = req->offs >= 0
827 ? pread (req->int1, req->ptr2, req->size, req->offs) 852 ? pread (req->int1, req->ptr2, req->size, req->offs)
828 : read (req->int1, req->ptr2, req->size); break; 853 : read (req->int1, req->ptr2, req->size); break;
829 case EIO_WRITE: req->result = req->offs >= 0 854 case EIO_WRITE: req->result = req->offs >= 0
830 ? pwrite (req->int1, req->ptr2, req->size, req->offs) 855 ? pwrite (req->int1, req->ptr2, req->size, req->offs)
831 : write (req->int1, req->ptr2, req->size); break; 856 : write (req->int1, req->ptr2, req->size); break;
832 857
833 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; 858 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
834 case EIO_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; 859 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;
835 860
861 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
836 case EIO_STAT: req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 862 req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
863 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
837 case EIO_LSTAT: req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 864 req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
865 case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
838 case EIO_FSTAT: req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; 866 req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
839 867
840 case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; 868 case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
841 case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; 869 case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
842 case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; 870 case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
843 case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; 871 case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
… …
852 case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; 880 case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
853 case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; 881 case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
854 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; 882 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
855 case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; 883 case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
856 case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; 884 case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
885
886 case EIO_READLINK: ALLOC (NAME_MAX);
857 case EIO_READLINK: req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; 887 req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break;
858 888
859 case EIO_SYNC: req->result = 0; sync (); break; 889 case EIO_SYNC: req->result = 0; sync (); break;
860 case EIO_FSYNC: req->result = fsync (req->int1); break; 890 case EIO_FSYNC: req->result = fsync (req->int1); break;
861 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; 891 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
862 892
863 case EIO_READDIR: scandir_ (req, self); break; 893 case EIO_READDIR: eio__scandir (req, self); break;
864 894
865 case EIO_BUSY: 895 case EIO_BUSY:
866#ifdef _WIN32 896#ifdef _WIN32
867 Sleep (req->nv1 * 1000.); 897 Sleep (req->nv1 * 1000.);
868#else 898#else
… …
901 : utimes (req->ptr1, times); 931 : utimes (req->ptr1, times);
902 } 932 }
903 933
904 case EIO_GROUP: 934 case EIO_GROUP:
905 case EIO_NOP: 935 case EIO_NOP:
936 req->result = 0;
906 break; 937 break;
907 938
908 case EIO_QUIT: 939 case EIO_QUIT:
909 goto quit; 940 goto quit;
910 941
… …
1011#endif 1042#endif
1012 1043
1013 X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child); 1044 X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child);
1014} 1045}
1015 1046
1016#if 0 1047static void eio_api_destroy (eio_req *req)
1048{
1049 free (req);
1050}
1017 1051
1052#define REQ(rtype) \
1053 eio_req *req; \
1054 \
1055 req = (eio_req *)calloc (1, sizeof *req); \
1056 if (!req) \
1057 return 0; \
1058 \
1059 req->type = rtype; \
1060 req->pri = pri; \
1061 req->finish = cb; \
1062 req->data = data; \
1063 req->destroy = eio_api_destroy;
1064
1065#define SEND eio_submit (req); return req
1066
1067#define PATH \
1068 req->flags |= EIO_FLAG_PTR1_FREE; \
1069 req->ptr1 = strdup (path); \
1070 if (!req->ptr1) \
1071 { \
1072 eio_api_destroy (req); \
1073 return 0; \
1074 }
1075
1076#ifndef EIO_NO_WRAPPERS
1077
1078eio_req *eio_nop (int pri, eio_cb cb, void *data)
1079{
1080 REQ (EIO_NOP); SEND;
1081}
1082
1083eio_req *eio_busy (double delay, int pri, eio_cb cb, void *data)
1084{
1085 REQ (EIO_BUSY); req->nv1 = delay; SEND;
1086}
1087
1018eio_req *eio_fsync (int fd, eio_cb cb); 1088eio_req *eio_sync (int pri, eio_cb cb, void *data)
1089{
1090 REQ (EIO_SYNC); SEND;
1091}
1092
1093eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data)
1094{
1095 REQ (EIO_FSYNC); req->int1 = fd; SEND;
1096}
1097
1019eio_req *eio_fdatasync (int fd, eio_cb cb); 1098eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
1020eio_req *eio_dupclose (int fd, eio_cb cb); 1099{
1100 REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
1101}
1102
1103eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
1104{
1105 REQ (EIO_CLOSE); req->int1 = fd; SEND;
1106}
1107
1021eio_req *eio_readahead (int fd, off_t offset, size_t length, eio_cb cb); 1108eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data)
1022eio_req *eio_read (int fd, off_t offs, size_t length, char *data, eio_cb cb); 1109{
1023eio_req *eio_write (int fd, off_t offs, size_t length, char *data, eio_cb cb); 1110 REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
1024eio_req *eio_fstat (int fd, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1111}
1112
1113eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1114{
1115 REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1116}
1117
1118eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1119{
1120 REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1121}
1122
1123eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data)
1124{
1125 REQ (EIO_FSTAT); req->int1 = fd; SEND;
1126}
1127
1025eio_req *eio_futime (int fd, double atime, double mtime, eio_cb cb); 1128eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data)
1129{
1130 REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND;
1131}
1132
1026eio_req *eio_ftruncate (int fd, off_t offset, eio_cb cb); 1133eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data)
1134{
1135 REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND;
1136}
1137
1027eio_req *eio_fchmod (int fd, mode_t mode, eio_cb cb); 1138eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
1139{
1140 REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
1141}
1142
1028eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, eio_cb cb); 1143eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1144{
1145 REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1146}
1147
1029eio_req *eio_dup2 (int fd, int fd2, eio_cb cb); 1148eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
1149{
1150 REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND;
1151}
1152
1030eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, eio_cb cb); 1153eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data)
1154{
1155 REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND;
1156}
1157
1031eio_req *eio_open (const char *path, int flags, mode_t mode, eio_cb cb); 1158eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data)
1032eio_req *eio_readlink (const char *path, eio_cb cb); /* result=ptr2 allocated dynamically */ 1159{
1033eio_req *eio_stat (const char *path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1160 REQ (EIO_OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND;
1034eio_req *eio_lstat (const char *path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1161}
1162
1035eio_req *eio_utime (const char *path, double atime, double mtime, eio_cb cb); 1163eio_req *eio_utime (const char *path, double atime, double mtime, int pri, eio_cb cb, void *data)
1164{
1165 REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND;
1166}
1167
1036eio_req *eio_truncate (const char *path, off_t offset, eio_cb cb); 1168eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
1037eio_req *eio_chmod (const char *path, mode_t mode, eio_cb cb); 1169{
1038eio_req *eio_mkdir (const char *path, mode_t mode, eio_cb cb); 1170 REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
1171}
1172
1039eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, eio_cb cb); 1173eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1174{
1175 REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1176}
1177
1178eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
1179{
1180 REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND;
1181}
1182
1183eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
1184{
1185 REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND;
1186}
1187
1188static eio_req *
1189eio__1path (int type, const char *path, int pri, eio_cb cb, void *data)
1190{
1191 REQ (type); PATH; SEND;
1192}
1193
1194eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data)
1195{
1196 return eio__1path (EIO_READLINK, path, pri, cb, data);
1197}
1198
1199eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data)
1200{
1201 return eio__1path (EIO_STAT, path, pri, cb, data);
1202}
1203
1204eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data)
1205{
1206 return eio__1path (EIO_LSTAT, path, pri, cb, data);
1207}
1208
1040eio_req *eio_unlink (const char *path, eio_cb cb); 1209eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data)
1210{
1211 return eio__1path (EIO_UNLINK, path, pri, cb, data);
1212}
1213
1041eio_req *eio_rmdir (const char *path, eio_cb cb); 1214eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data)
1042eio_req *eio_readdir (const char *path, eio_cb cb); /* result=ptr2 allocated dynamically */ 1215{
1216 return eio__1path (EIO_RMDIR, path, pri, cb, data);
1217}
1218
1219eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data)
1220{
1221 return eio__1path (EIO_READDIR, path, pri, cb, data);
1222}
1223
1043eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, eio_cb cb); 1224eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data)
1044eio_req *eio_busy (double delay, eio_cb cb); /* ties a thread for this long, simulating busyness */
1045eio_req *eio_nop (eio_cb cb); /* does nothing except go through the whole process */
1046void
1047aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1048 PROTOTYPE: $$$;$
1049 PPCODE:
1050{ 1225{
1051 dREQ; 1226 REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND;
1052
1053 req->type = EIO_OPEN;
1054 req->sv1 = newSVsv (pathname);
1055 req->ptr1 = SvPVbyte_nolen (req->sv1);
1056 req->int1 = flags;
1057 req->int2 = mode;
1058
1059 EIO_SEND;
1060} 1227}
1061 1228
1062void 1229static eio_req *
1063aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1230eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1064 PROTOTYPE: $;$
1065 ALIAS:
1066 aio_fsync = EIO_FSYNC
1067 aio_fdatasync = EIO_FDATASYNC
1068 PPCODE:
1069{ 1231{
1070 dREQ; 1232 REQ (type); PATH;
1071 1233
1072 req->type = ix;
1073 req->sv1 = newSVsv (fh);
1074 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1075
1076 EIO_SEND (req);
1077}
1078
1079void
1080aio_close (SV *fh, SV *callback=&PL_sv_undef)
1081 PROTOTYPE: $;$
1082 PPCODE:
1083{
1084 dREQ;
1085
1086 req->type = EIO_CLOSE;
1087 req->sv1 = newSVsv (fh);
1088 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1089
1090 EIO_SEND (req);
1091}
1092
1093void
1094aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1095 ALIAS:
1096 aio_read = EIO_READ
1097 aio_write = EIO_WRITE
1098 PROTOTYPE: $$$$$;$
1099 PPCODE:
1100{
1101 STRLEN svlen;
1102 char *svptr = SvPVbyte (data, svlen);
1103 UV len = SvUV (length);
1104
1105 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data);
1107
1108 if (dataoffset < 0)
1109 dataoffset += svlen;
1110
1111 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("dataoffset outside of data scalar");
1113
1114 if (ix == EIO_WRITE)
1115 {
1116 /* write: check length and adjust. */
1117 if (!SvOK (length) || len + dataoffset > svlen)
1118 len = svlen - dataoffset;
1119 }
1120 else
1121 {
1122 /* read: grow scalar as necessary */
1123 svptr = SvGROW (data, len + dataoffset + 1);
1124 }
1125
1126 if (len < 0)
1127 croak ("length must not be negative");
1128
1129 {
1130 dREQ;
1131
1132 req->type = ix;
1133 req->sv1 = newSVsv (fh);
1134 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
1135 : IoOFP (sv_2io (fh)));
1136 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1137 req->size = len;
1138 req->sv2 = SvREFCNT_inc (data);
1139 req->ptr2 = (char *)svptr + dataoffset;
1140 req->stroffset = dataoffset;
1141
1142 if (!SvREADONLY (data))
1143 {
1144 SvREADONLY_on (data);
1145 req->flags |= FLAG_SV2_RO_OFF;
1146 }
1147
1148 EIO_SEND;
1149 }
1150}
1151
1152void
1153aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1154 PROTOTYPE: $$;$
1155 PPCODE:
1156{
1157 SV *data;
1158 dREQ;
1159
1160 data = newSV (NAME_MAX);
1161 SvPOK_on (data);
1162
1163 req->type = EIO_READLINK;
1164 req->sv1 = newSVsv (path);
1165 req->ptr1 = SvPVbyte_nolen (req->sv1);
1166 req->sv2 = data;
1167 req->ptr2 = SvPVbyte_nolen (data);
1168
1169 EIO_SEND;
1170}
1171
1172void
1173aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1174 PROTOTYPE: $$$$;$
1175 PPCODE:
1176{
1177 dREQ;
1178
1179 req->type = EIO_SENDFILE;
1180 req->sv1 = newSVsv (out_fh);
1181 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1182 req->sv2 = newSVsv (in_fh);
1183 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1184 req->offs = SvVAL64 (in_offset);
1185 req->size = length;
1186
1187 EIO_SEND;
1188}
1189
1190void
1191aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1192 PROTOTYPE: $$$;$
1193 PPCODE:
1194{
1195 dREQ;
1196
1197 req->type = EIO_READAHEAD;
1198 req->sv1 = newSVsv (fh);
1199 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1200 req->offs = SvVAL64 (offset);
1201 req->size = length;
1202
1203 EIO_SEND;
1204}
1205
1206void
1207aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1208 ALIAS:
1209 aio_stat = EIO_STAT
1210 aio_lstat = EIO_LSTAT
1211 PPCODE:
1212{
1213 dREQ;
1214
1215 req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
1216 if (!req->ptr2)
1217 {
1218 req_destroy (req);
1219 croak ("out of memory during aio_stat statdata allocation");
1220 }
1221
1222 req->flags |= FLAG_PTR2_FREE; 1234 req->flags |= EIO_FLAG_PTR2_FREE;
1223 req->sv1 = newSVsv (fh_or_path); 1235 req->ptr2 = strdup (new_path);
1236 if (!req->ptr2)
1237 {
1238 eio_api_destroy (req);
1239 return 0;
1240 }
1224 1241
1225 if (SvPOK (fh_or_path)) 1242 SEND;
1226 {
1227 req->type = ix;
1228 req->ptr1 = SvPVbyte_nolen (req->sv1);
1229 }
1230 else
1231 {
1232 req->type = EIO_FSTAT;
1233 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1234 }
1235
1236 EIO_SEND;
1237} 1243}
1238 1244
1239void 1245eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1240aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1241 PPCODE:
1242{ 1246{
1243 dREQ; 1247 return eio__2path (EIO_LINK, path, new_path, pri, cb, data);
1244
1245 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1246 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1247 req->sv1 = newSVsv (fh_or_path);
1248
1249 if (SvPOK (fh_or_path))
1250 {
1251 req->type = EIO_UTIME;
1252 req->ptr1 = SvPVbyte_nolen (req->sv1);
1253 }
1254 else
1255 {
1256 req->type = EIO_FUTIME;
1257 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1258 }
1259
1260 EIO_SEND;
1261} 1248}
1262 1249
1263void 1250eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1264aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1265 PPCODE:
1266{ 1251{
1267 dREQ; 1252 return eio__2path (EIO_SYMLINK, path, new_path, pri, cb, data);
1268
1269 req->sv1 = newSVsv (fh_or_path);
1270 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1271
1272 if (SvPOK (fh_or_path))
1273 {
1274 req->type = EIO_TRUNCATE;
1275 req->ptr1 = SvPVbyte_nolen (req->sv1);
1276 }
1277 else
1278 {
1279 req->type = EIO_FTRUNCATE;
1280 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1281 }
1282
1283 EIO_SEND;
1284} 1253}
1285 1254
1286void 1255eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1287aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1288 ALIAS:
1289 aio_chmod = EIO_CHMOD
1290 aio_fchmod = EIO_FCHMOD
1291 aio_mkdir = EIO_MKDIR
1292 PPCODE:
1293{ 1256{
1294 dREQ; 1257 return eio__2path (EIO_RENAME, path, new_path, pri, cb, data);
1295
1296 req->type = type;
1297 req->int2 = mode;
1298 req->sv1 = newSVsv (fh_or_path);
1299
1300 if (ix == EIO_FCHMOD)
1301 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1302 else
1303 req->ptr1 = SvPVbyte_nolen (req->sv1);
1304
1305 EIO_SEND;
1306} 1258}
1307 1259
1308void
1309aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1310 PPCODE:
1311{
1312 dREQ;
1313
1314 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1315 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1316 req->sv1 = newSVsv (fh_or_path);
1317
1318 if (SvPOK (fh_or_path))
1319 {
1320 req->type = EIO_CHOWN;
1321 req->ptr1 = SvPVbyte_nolen (req->sv1);
1322 }
1323 else
1324 {
1325 req->type = EIO_FCHOWN;
1326 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1327 }
1328
1329 EIO_SEND;
1330}
1331
1332void
1333aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1334 ALIAS:
1335 aio_unlink = EIO_UNLINK
1336 aio_rmdir = EIO_RMDIR
1337 aio_readdir = EIO_READDIR
1338 PPCODE:
1339{
1340 dREQ;
1341
1342 req->type = ix;
1343 req->sv1 = newSVsv (pathname);
1344 req->ptr1 = SvPVbyte_nolen (req->sv1);
1345
1346 EIO_SEND;
1347}
1348
1349void
1350aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1351 ALIAS:
1352 aio_link = EIO_LINK
1353 aio_symlink = EIO_SYMLINK
1354 aio_rename = EIO_RENAME
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req->type = ix;
1360 req->sv1 = newSVsv (oldpath);
1361 req->ptr1 = SvPVbyte_nolen (req->sv1);
1362 req->sv2 = newSVsv (newpath);
1363 req->ptr2 = SvPVbyte_nolen (req->sv2);
1364
1365 EIO_SEND;
1366}
1367
1368void
1369aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1370 PPCODE:
1371{
1372 dREQ;
1373
1374 req->type = EIO_MKNOD;
1375 req->sv1 = newSVsv (pathname);
1376 req->ptr1 = SvPVbyte_nolen (req->sv1);
1377 req->int2 = (mode_t)mode;
1378 req->offs = dev;
1379
1380 EIO_SEND;
1381}
1382
1383void
1384aio_busy (double delay, SV *callback=&PL_sv_undef)
1385 PPCODE:
1386{
1387 dREQ;
1388
1389 req->type = EIO_BUSY;
1390 req->nv1 = delay < 0. ? 0. : delay;
1391
1392 EIO_SEND;
1393}
1394
1395void
1396aio_group (SV *callback=&PL_sv_undef)
1397 PROTOTYPE: ;$
1398 PPCODE:
1399{
1400 dREQ;
1401
1402 req->type = EIO_GROUP;
1403
1404 req_send (req);
1405 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1406}
1407
1408void
1409aio_nop (SV *callback=&PL_sv_undef)
1410 ALIAS:
1411 aio_nop = EIO_NOP
1412 aio_sync = EIO_SYNC
1413 PPCODE:
1414{
1415 dREQ;
1416
1417#endif 1260#endif
1261
1262eio_req *eio_grp (eio_cb cb, void *data)
1263{
1264 const int pri = EIO_PRI_MAX;
1265
1266 REQ (EIO_GROUP); SEND;
1267}
1268
1269#undef REQ
1270#undef PATH
1271#undef SEND
1272
1273/*****************************************************************************/
1274/* grp functions */
1418 1275
1419void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) 1276void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit)
1420{ 1277{
1421 grp->int2 = limit; 1278 grp->int2 = limit;
1422 grp->feed = feed; 1279 grp->feed = feed;
… …
1445 grp->grp_first->grp_prev = req; 1302 grp->grp_first->grp_prev = req;
1446 1303
1447 grp->grp_first = req; 1304 grp->grp_first = req;
1448} 1305}
1449 1306
1307/*****************************************************************************/
1308/* misc garbage */
1450 1309
1310ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
1311{
1312 worker wrk;
1313
1314 wrk.dbuf = 0;
1315
1316 eio__sendfile (ofd, ifd, offset, count, &wrk);
1317
1318 if (wrk.dbuf)
1319 free (wrk.dbuf);
1320}
1321

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