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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 1.10 by root, Tue May 13 17:08:15 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 {
… …
486 483
487/*****************************************************************************/ 484/*****************************************************************************/
488/* work around various missing functions */ 485/* work around various missing functions */
489 486
490#if !HAVE_PREADWRITE 487#if !HAVE_PREADWRITE
491# define pread aio_pread 488# define pread eio__pread
492# define pwrite aio_pwrite 489# define pwrite eio__pwrite
493 490
494/* 491/*
495 * make our pread/pwrite safe against themselves, but not against 492 * make our pread/pwrite safe against themselves, but not against
496 * normal read/write by using a mutex. slows down execution a lot, 493 * normal read/write by using a mutex. slows down execution a lot,
497 * but that's your problem, not mine. 494 * but that's your problem, not mine.
498 */ 495 */
499static mutex_t preadwritelock = X_MUTEX_INIT; 496static mutex_t preadwritelock = X_MUTEX_INIT;
500 497
501static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 498static ssize_t
499eio__pread (int fd, void *buf, size_t count, off_t offset)
502{ 500{
503 ssize_t res; 501 ssize_t res;
504 off_t ooffset; 502 off_t ooffset;
505 503
506 X_LOCK (preadwritelock); 504 X_LOCK (preadwritelock);
… …
511 X_UNLOCK (preadwritelock); 509 X_UNLOCK (preadwritelock);
512 510
513 return res; 511 return res;
514} 512}
515 513
516static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 514static ssize_t
515eio__pwrite (int fd, void *buf, size_t count, off_t offset)
517{ 516{
518 ssize_t res; 517 ssize_t res;
519 off_t ooffset; 518 off_t ooffset;
520 519
521 X_LOCK (preadwritelock); 520 X_LOCK (preadwritelock);
… …
529} 528}
530#endif 529#endif
531 530
532#ifndef HAVE_FUTIMES 531#ifndef HAVE_FUTIMES
533 532
534# define utimes(path,times) aio_utimes (path, times) 533# define utimes(path,times) eio__utimes (path, times)
535# define futimes(fd,times) aio_futimes (fd, times) 534# define futimes(fd,times) eio__futimes (fd, times)
536 535
536static int
537static int aio_utimes (const char *filename, const struct timeval times[2]) 537eio__utimes (const char *filename, const struct timeval times[2])
538{ 538{
539 if (times) 539 if (times)
540 { 540 {
541 struct utimbuf buf; 541 struct utimbuf buf;
542 542
… …
547 } 547 }
548 else 548 else
549 return utime (filename, 0); 549 return utime (filename, 0);
550} 550}
551 551
552static int aio_futimes (int fd, const struct timeval tv[2]) 552static int eio__futimes (int fd, const struct timeval tv[2])
553{ 553{
554 errno = ENOSYS; 554 errno = ENOSYS;
555 return -1; 555 return -1;
556} 556}
557 557
… …
560#if !HAVE_FDATASYNC 560#if !HAVE_FDATASYNC
561# define fdatasync fsync 561# define fdatasync fsync
562#endif 562#endif
563 563
564#if !HAVE_READAHEAD 564#if !HAVE_READAHEAD
565# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 565# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
566 566
567static ssize_t
567static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 568eio__readahead (int fd, off_t offset, size_t count, worker *self)
568{ 569{
569 size_t todo = count; 570 size_t todo = count;
570 dBUF; 571 dBUF;
571 572
572 while (todo > 0) 573 while (todo > 0)
573 { 574 {
574 size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE; 575 size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE;
575 576
576 pread (fd, aio_buf, len, offset); 577 pread (fd, eio_buf, len, offset);
577 offset += len; 578 offset += len;
578 todo -= len; 579 todo -= len;
579 } 580 }
580 581
581 errno = 0; 582 errno = 0;
… …
583} 584}
584 585
585#endif 586#endif
586 587
587#if !HAVE_READDIR_R 588#if !HAVE_READDIR_R
588# define readdir_r aio_readdir_r 589# define readdir_r eio__readdir_r
589 590
590static mutex_t readdirlock = X_MUTEX_INIT; 591static mutex_t readdirlock = X_MUTEX_INIT;
591 592
592static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 593static int
594eio__readdir_r (DIR *dirp, EIO_STRUCT_DIRENT *ent, EIO_STRUCT_DIRENT **res)
593{ 595{
594 X_DIRENT *e; 596 EIO_STRUCT_DIRENT *e;
595 int errorno; 597 int errorno;
596 598
597 X_LOCK (readdirlock); 599 X_LOCK (readdirlock);
598 600
599 e = readdir (dirp); 601 e = readdir (dirp);
… …
613 return e ? 0 : -1; 615 return e ? 0 : -1;
614} 616}
615#endif 617#endif
616 618
617/* sendfile always needs emulation */ 619/* sendfile always needs emulation */
620static ssize_t
618static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 621eio__sendfile (int ofd, int ifd, off_t offset, size_t count, worker *self)
619{ 622{
620 ssize_t res; 623 ssize_t res;
621 624
622 if (!count) 625 if (!count)
623 return 0; 626 return 0;
… …
706 709
707 return res; 710 return res;
708} 711}
709 712
710/* read a full directory */ 713/* read a full directory */
714static void
711static void scandir_ (eio_req *req, worker *self) 715eio__scandir (eio_req *req, worker *self)
712{ 716{
713 DIR *dirp; 717 DIR *dirp;
714 union 718 union
715 { 719 {
716 EIO_STRUCT_DIRENT d; 720 EIO_STRUCT_DIRENT d;
… …
768 req->result = res; 772 req->result = res;
769} 773}
770 774
771/*****************************************************************************/ 775/*****************************************************************************/
772 776
777#define ALLOC(len) \
778 if (!req->ptr2) \
779 { \
780 X_LOCK (wrklock); \
781 req->flags |= EIO_FLAG_PTR2_FREE; \
782 X_UNLOCK (wrklock); \
783 req->ptr2 = malloc (len); \
784 if (!req->ptr2) \
785 { \
786 errno = ENOMEM; \
787 req->result = -1; \
788 break; \
789 } \
790 }
791
773X_THREAD_PROC (eio_proc) 792X_THREAD_PROC (eio_proc)
774{ 793{
775 eio_req *req; 794 eio_req *req;
776 struct timespec ts; 795 struct timespec ts;
777 worker *self = (worker *)thr_arg; 796 worker *self = (worker *)thr_arg;
… …
821 errno = 0; /* strictly unnecessary */ 840 errno = 0; /* strictly unnecessary */
822 841
823 if (!EIO_CANCELLED (req)) 842 if (!EIO_CANCELLED (req))
824 switch (req->type) 843 switch (req->type)
825 { 844 {
845 case EIO_READ: ALLOC (req->size);
826 case EIO_READ: req->result = req->offs >= 0 846 req->result = req->offs >= 0
827 ? pread (req->int1, req->ptr2, req->size, req->offs) 847 ? pread (req->int1, req->ptr2, req->size, req->offs)
828 : read (req->int1, req->ptr2, req->size); break; 848 : read (req->int1, req->ptr2, req->size); break;
829 case EIO_WRITE: req->result = req->offs >= 0 849 case EIO_WRITE: req->result = req->offs >= 0
830 ? pwrite (req->int1, req->ptr2, req->size, req->offs) 850 ? pwrite (req->int1, req->ptr2, req->size, req->offs)
831 : write (req->int1, req->ptr2, req->size); break; 851 : write (req->int1, req->ptr2, req->size); break;
832 852
833 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; 853 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; 854 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;
835 855
856 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
836 case EIO_STAT: req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 857 req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
858 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
837 case EIO_LSTAT: req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 859 req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
860 case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
838 case EIO_FSTAT: req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; 861 req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
839 862
840 case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; 863 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; 864 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; 865 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; 866 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; 875 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; 876 case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
854 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; 877 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
855 case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; 878 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; 879 case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
880
881 case EIO_READLINK: ALLOC (NAME_MAX);
857 case EIO_READLINK: req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; 882 req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break;
858 883
859 case EIO_SYNC: req->result = 0; sync (); break; 884 case EIO_SYNC: req->result = 0; sync (); break;
860 case EIO_FSYNC: req->result = fsync (req->int1); break; 885 case EIO_FSYNC: req->result = fsync (req->int1); break;
861 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; 886 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
862 887
863 case EIO_READDIR: scandir_ (req, self); break; 888 case EIO_READDIR: eio__scandir (req, self); break;
864 889
865 case EIO_BUSY: 890 case EIO_BUSY:
866#ifdef _WIN32 891#ifdef _WIN32
867 Sleep (req->nv1 * 1000.); 892 Sleep (req->nv1 * 1000.);
868#else 893#else
… …
901 : utimes (req->ptr1, times); 926 : utimes (req->ptr1, times);
902 } 927 }
903 928
904 case EIO_GROUP: 929 case EIO_GROUP:
905 case EIO_NOP: 930 case EIO_NOP:
931 req->result = 0;
906 break; 932 break;
907 933
908 case EIO_QUIT: 934 case EIO_QUIT:
909 goto quit; 935 goto quit;
910 936
… …
1011#endif 1037#endif
1012 1038
1013 X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child); 1039 X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child);
1014} 1040}
1015 1041
1016#if 0 1042static void eio_api_destroy (eio_req *req)
1043{
1044 free (req);
1045}
1017 1046
1047#define REQ(rtype) \
1048 eio_req *req; \
1049 \
1050 req = (eio_req *)calloc (1, sizeof *req); \
1051 if (!req) \
1052 return 0; \
1053 \
1054 req->type = rtype; \
1055 req->pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
1056 req->finish = cb; \
1057 req->destroy = eio_api_destroy;
1058
1059#define SEND eio_submit (req); return req
1060
1061#define PATH \
1062 req->flags |= EIO_FLAG_PTR1_FREE; \
1063 req->ptr1 = strdup (path); \
1064 if (!req->ptr1) \
1065 { \
1066 eio_api_destroy (req); \
1067 return 0; \
1068 }
1069
1070eio_req *eio_nop (int pri, eio_cb cb, void *data)
1071{
1072 REQ (EIO_NOP); SEND;
1073}
1074
1075eio_req *eio_busy (double delay, int pri, eio_cb cb, void *data)
1076{
1077 REQ (EIO_BUSY); req->nv1 = delay; SEND;
1078}
1079
1018eio_req *eio_fsync (int fd, eio_cb cb); 1080eio_req *eio_sync (int pri, eio_cb cb, void *data)
1081{
1082 REQ (EIO_SYNC); SEND;
1083}
1084
1085eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data)
1086{
1087 REQ (EIO_FSYNC); req->int1 = fd; SEND;
1088}
1089
1019eio_req *eio_fdatasync (int fd, eio_cb cb); 1090eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
1020eio_req *eio_dupclose (int fd, eio_cb cb); 1091{
1092 REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
1093}
1094
1095eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
1096{
1097 REQ (EIO_CLOSE); req->int1 = fd; SEND;
1098}
1099
1021eio_req *eio_readahead (int fd, off_t offset, size_t length, eio_cb cb); 1100eio_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); 1101{
1023eio_req *eio_write (int fd, off_t offs, size_t length, char *data, eio_cb cb); 1102 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 */ 1103}
1104
1105eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1106{
1107 REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1108}
1109
1110eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1111{
1112 REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1113}
1114
1115eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data)
1116{
1117 REQ (EIO_FSTAT); req->int1 = fd; SEND;
1118}
1119
1025eio_req *eio_futime (int fd, double atime, double mtime, eio_cb cb); 1120eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data)
1121{
1122 REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND;
1123}
1124
1026eio_req *eio_ftruncate (int fd, off_t offset, eio_cb cb); 1125eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data)
1126{
1127 REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND;
1128}
1129
1027eio_req *eio_fchmod (int fd, mode_t mode, eio_cb cb); 1130eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
1131{
1132 REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
1133}
1134
1028eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, eio_cb cb); 1135eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1136{
1137 REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1138}
1139
1029eio_req *eio_dup2 (int fd, int fd2, eio_cb cb); 1140eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
1141{
1142 REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND;
1143}
1144
1030eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, eio_cb cb); 1145eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data)
1146{
1147 REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND;
1148}
1149
1031eio_req *eio_open (const char *path, int flags, mode_t mode, eio_cb cb); 1150eio_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 */ 1151{
1033eio_req *eio_stat (const char *path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1152 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 */ 1153}
1154
1035eio_req *eio_utime (const char *path, double atime, double mtime, eio_cb cb); 1155eio_req *eio_utime (const char *path, double atime, double mtime, int pri, eio_cb cb, void *data)
1156{
1157 REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND;
1158}
1159
1036eio_req *eio_truncate (const char *path, off_t offset, eio_cb cb); 1160eio_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); 1161{
1038eio_req *eio_mkdir (const char *path, mode_t mode, eio_cb cb); 1162 REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
1163}
1164
1039eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, eio_cb cb); 1165eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1166{
1167 REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1168}
1169
1170eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
1171{
1172 REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND;
1173}
1174
1175eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
1176{
1177 REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND;
1178}
1179
1180static eio_req *
1181eio__1path (int type, const char *path, int pri, eio_cb cb, void *data)
1182{
1183 REQ (type); PATH; SEND;
1184}
1185
1186eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data)
1187{
1188 return eio__1path (EIO_READLINK, path, pri, cb, data);
1189}
1190
1191eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data)
1192{
1193 return eio__1path (EIO_STAT, path, pri, cb, data);
1194}
1195
1196eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data)
1197{
1198 return eio__1path (EIO_LSTAT, path, pri, cb, data);
1199}
1200
1040eio_req *eio_unlink (const char *path, eio_cb cb); 1201eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data)
1202{
1203 return eio__1path (EIO_UNLINK, path, pri, cb, data);
1204}
1205
1041eio_req *eio_rmdir (const char *path, eio_cb cb); 1206eio_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 */ 1207{
1208 return eio__1path (EIO_RMDIR, path, pri, cb, data);
1209}
1210
1211eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data)
1212{
1213 return eio__1path (EIO_READDIR, path, pri, cb, data);
1214}
1215
1043eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, eio_cb cb); 1216eio_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: $$$;$
1049 PPCODE:
1050{ 1217{
1051 dREQ; 1218 REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND;
1052
1053 req->type = EIO_OPEN;
1054 req->sv1 = newSVsv (pathname);
1055 req->ptr1 = SvPVbyte_nolen (req->sv1);
1056 req->int1 = flags;
1057 req->int2 = mode;
1058
1059 EIO_SEND;
1060} 1219}
1061 1220
1062void 1221static eio_req *
1063aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1222eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1064 PROTOTYPE: $;$
1065 ALIAS:
1066 aio_fsync = EIO_FSYNC
1067 aio_fdatasync = EIO_FDATASYNC
1068 PPCODE:
1069{ 1223{
1070 dREQ; 1224 REQ (type); PATH;
1071 1225
1072 req->type = ix;
1073 req->sv1 = newSVsv (fh);
1074 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1075
1076 EIO_SEND (req);
1077}
1078
1079void
1080aio_close (SV *fh, SV *callback=&PL_sv_undef)
1081 PROTOTYPE: $;$
1082 PPCODE:
1083{
1084 dREQ;
1085
1086 req->type = EIO_CLOSE;
1087 req->sv1 = newSVsv (fh);
1088 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1089
1090 EIO_SEND (req);
1091}
1092
1093void
1094aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1095 ALIAS:
1096 aio_read = EIO_READ
1097 aio_write = EIO_WRITE
1098 PROTOTYPE: $$$$$;$
1099 PPCODE:
1100{
1101 STRLEN svlen;
1102 char *svptr = SvPVbyte (data, svlen);
1103 UV len = SvUV (length);
1104
1105 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data);
1107
1108 if (dataoffset < 0)
1109 dataoffset += svlen;
1110
1111 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("dataoffset outside of data scalar");
1113
1114 if (ix == EIO_WRITE)
1115 {
1116 /* write: check length and adjust. */
1117 if (!SvOK (length) || len + dataoffset > svlen)
1118 len = svlen - dataoffset;
1119 }
1120 else
1121 {
1122 /* read: grow scalar as necessary */
1123 svptr = SvGROW (data, len + dataoffset + 1);
1124 }
1125
1126 if (len < 0)
1127 croak ("length must not be negative");
1128
1129 {
1130 dREQ;
1131
1132 req->type = ix;
1133 req->sv1 = newSVsv (fh);
1134 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
1135 : IoOFP (sv_2io (fh)));
1136 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1137 req->size = len;
1138 req->sv2 = SvREFCNT_inc (data);
1139 req->ptr2 = (char *)svptr + dataoffset;
1140 req->stroffset = dataoffset;
1141
1142 if (!SvREADONLY (data))
1143 {
1144 SvREADONLY_on (data);
1145 req->flags |= FLAG_SV2_RO_OFF;
1146 }
1147
1148 EIO_SEND;
1149 }
1150}
1151
1152void
1153aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1154 PROTOTYPE: $$;$
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; 1226 req->flags |= EIO_FLAG_PTR2_FREE;
1223 req->sv1 = newSVsv (fh_or_path); 1227 req->ptr2 = strdup (new_path);
1228 if (!req->ptr2)
1229 {
1230 eio_api_destroy (req);
1231 return 0;
1232 }
1224 1233
1225 if (SvPOK (fh_or_path)) 1234 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} 1235}
1238 1236
1239void 1237eio_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{ 1238{
1243 dREQ; 1239 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} 1240}
1262 1241
1263void 1242eio_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{ 1243{
1267 dREQ; 1244 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} 1245}
1285 1246
1286void 1247eio_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{ 1248{
1294 dREQ; 1249 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} 1250}
1307 1251
1308void 1252eio_req *eio_grp (eio_cb cb, void *data)
1309aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1310 PPCODE:
1311{ 1253{
1312 dREQ; 1254 const int pri = EIO_PRI_MAX;
1313 1255
1314 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1256 REQ (EIO_GROUP); SEND;
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} 1257}
1331 1258
1332void 1259#undef REQ
1333aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1260#undef PATH
1334 ALIAS: 1261#undef SEND
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 1262
1346 EIO_SEND; 1263/*****************************************************************************/
1347} 1264/* grp functions */
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
1418 1265
1419void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) 1266void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit)
1420{ 1267{
1421 grp->int2 = limit; 1268 grp->int2 = limit;
1422 grp->feed = feed; 1269 grp->feed = feed;
… …
1445 grp->grp_first->grp_prev = req; 1292 grp->grp_first->grp_prev = req;
1446 1293
1447 grp->grp_first = req; 1294 grp->grp_first = req;
1448} 1295}
1449 1296
1297/*****************************************************************************/
1298/* misc garbage */
1450 1299
1300ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
1301{
1302 worker wrk;
1303
1304 wrk.dbuf = 0;
1305
1306 eio__sendfile (ofd, ifd, offset, count, &wrk);
1307
1308 if (wrk.dbuf)
1309 free (wrk.dbuf);
1310}
1311

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