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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.87 by root, Mon Oct 30 23:42:27 2006 UTC vs.
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC

1/* solaris */ 1#include "xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "autoconf/config.h"
18 10
19#include <pthread.h>
20
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h> 14#include <sys/time.h>
24#include <sys/select.h> 15#include <sys/select.h>
25#include <sys/types.h> 16#include <sys/types.h>
26#include <sys/stat.h> 17#include <sys/stat.h>
… …
51/* used for struct dirent, AIX doesn't provide it */ 42/* used for struct dirent, AIX doesn't provide it */
52#ifndef NAME_MAX 43#ifndef NAME_MAX
53# define NAME_MAX 4096 44# define NAME_MAX 4096
54#endif 45#endif
55 46
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif
79#endif
80
81/* buffer size for various temporary buffers */ 47/* buffer size for various temporary buffers */
82#define AIO_BUFSIZE 65536 48#define AIO_BUFSIZE 65536
83 49
84#define dBUF \ 50#define dBUF \
85 char *aio_buf; \ 51 char *aio_buf; \
… …
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \ 54 UNLOCK (wrklock); \
89 if (!aio_buf) \ 55 if (!aio_buf) \
90 return -1; 56 return -1;
91 57
58typedef SV SV8; /* byte-sv, used for argument-checking */
59
92enum { 60enum {
93 REQ_QUIT, 61 REQ_QUIT,
94 REQ_OPEN, REQ_CLOSE, 62 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD, 63 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE, 64 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 65 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC, 66 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 67 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR, 68 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK, REQ_READLINK, 69 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102 REQ_GROUP, REQ_NOP, 70 REQ_GROUP, REQ_NOP,
103 REQ_BUSY, 71 REQ_BUSY,
104}; 72};
… …
129 SV *self; /* the perl counterpart of this request, if any */ 97 SV *self; /* the perl counterpart of this request, if any */
130 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
131} aio_cb; 99} aio_cb;
132 100
133enum { 101enum {
134 FLAG_CANCELLED = 0x01, 102 FLAG_CANCELLED = 0x01, /* request was cancelled */
135 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ 103 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
136 FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */ 104 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
137}; 105};
138 106
139typedef aio_cb *aio_req; 107typedef aio_cb *aio_req;
140typedef aio_cb *aio_req_ornot; 108typedef aio_cb *aio_req_ornot;
141 109
… …
158{ 126{
159 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
160 + ((tv2->tv_usec - tv1->tv_usec) >> 10); 128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
161} 129}
162 130
131static thread_t main_tid;
132static int main_sig;
133static int block_sig_level;
134
135void block_sig ()
136{
137 sigset_t ss;
138
139 if (block_sig_level++)
140 return;
141
142 if (!main_sig)
143 return;
144
145 sigemptyset (&ss);
146 sigaddset (&ss, main_sig);
147 pthread_sigmask (SIG_BLOCK, &ss, 0);
148}
149
150void unblock_sig ()
151{
152 sigset_t ss;
153
154 if (--block_sig_level)
155 return;
156
157 if (!main_sig)
158 return;
159
160 sigemptyset (&ss);
161 sigaddset (&ss, main_sig);
162 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
163}
164
163static int next_pri = DEFAULT_PRI + PRI_BIAS; 165static int next_pri = DEFAULT_PRI + PRI_BIAS;
164 166
165static unsigned int started, idle, wanted; 167static unsigned int started, idle, wanted;
166 168
167#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
168# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
169#else
170# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171#endif
172
173#define LOCK(mutex) pthread_mutex_lock (&(mutex))
174#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
175
176/* worker threads management */ 169/* worker threads management */
177static pthread_mutex_t wrklock = AIO_MUTEX_INIT; 170static mutex_t wrklock = MUTEX_INIT;
178 171
179typedef struct worker { 172typedef struct worker {
180 /* locked by wrklock */ 173 /* locked by wrklock */
181 struct worker *prev, *next; 174 struct worker *prev, *next;
182 175
183 pthread_t tid; 176 thread_t tid;
184 177
185 /* locked by reslock, reqlock or wrklock */ 178 /* locked by reslock, reqlock or wrklock */
186 aio_req req; /* currently processed request */ 179 aio_req req; /* currently processed request */
187 void *dbuf; 180 void *dbuf;
188 DIR *dirp; 181 DIR *dirp;
… …
216static volatile unsigned int nreqs, nready, npending; 209static volatile unsigned int nreqs, nready, npending;
217static volatile unsigned int max_idle = 4; 210static volatile unsigned int max_idle = 4;
218static volatile unsigned int max_outstanding = 0xffffffff; 211static volatile unsigned int max_outstanding = 0xffffffff;
219static int respipe [2]; 212static int respipe [2];
220 213
221static pthread_mutex_t reslock = AIO_MUTEX_INIT; 214static mutex_t reslock = MUTEX_INIT;
222static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 215static mutex_t reqlock = MUTEX_INIT;
223static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 216static cond_t reqwait = COND_INIT;
224 217
225#if WORDACCESS_UNSAFE 218#if WORDACCESS_UNSAFE
226 219
227static unsigned int get_nready () 220static unsigned int get_nready ()
228{ 221{
… …
318 311
319 abort (); 312 abort ();
320} 313}
321 314
322static int poll_cb (); 315static int poll_cb ();
323static void req_invoke (aio_req req); 316static int req_invoke (aio_req req);
324static void req_free (aio_req req); 317static void req_free (aio_req req);
325static void req_cancel (aio_req req); 318static void req_cancel (aio_req req);
326 319
327/* must be called at most once */ 320/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 321static SV *req_sv (aio_req req, const char *klass)
… …
348 return mg ? (aio_req)mg->mg_ptr : 0; 341 return mg ? (aio_req)mg->mg_ptr : 0;
349} 342}
350 343
351static void aio_grp_feed (aio_req grp) 344static void aio_grp_feed (aio_req grp)
352{ 345{
346 block_sig ();
347
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354 { 349 {
355 int old_len = grp->size; 350 int old_len = grp->size;
356 351
357 if (grp->sv2 && SvOK (grp->sv2)) 352 if (grp->sv2 && SvOK (grp->sv2))
… …
375 SvREFCNT_dec (grp->sv2); 370 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0; 371 grp->sv2 = 0;
377 break; 372 break;
378 } 373 }
379 } 374 }
375
376 unblock_sig ();
380} 377}
381 378
382static void aio_grp_dec (aio_req grp) 379static void aio_grp_dec (aio_req grp)
383{ 380{
384 --grp->size; 381 --grp->size;
… …
387 aio_grp_feed (grp); 384 aio_grp_feed (grp);
388 385
389 /* finish, if done */ 386 /* finish, if done */
390 if (!grp->size && grp->int1) 387 if (!grp->size && grp->int1)
391 { 388 {
389 block_sig ();
390
392 req_invoke (grp); 391 if (!req_invoke (grp))
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397
393 req_free (grp); 398 req_free (grp);
399 unblock_sig ();
394 } 400 }
395} 401}
396 402
397static void req_invoke (aio_req req) 403static int req_invoke (aio_req req)
398{ 404{
399 dSP; 405 dSP;
400 406
401 if (req->flags & FLAG_SV1_RO_OFF) 407 if (req->flags & FLAG_SV1_RO_OFF)
402 SvREADONLY_off (req->sv1); 408 SvREADONLY_off (req->sv1);
… …
445 PUSHs (sv_2mortal (newSViv (req->result))); 451 PUSHs (sv_2mortal (newSViv (req->result)));
446 PUTBACK; 452 PUTBACK;
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
448 SPAGAIN; 454 SPAGAIN;
449 455
450 fh = SvREFCNT_inc (POPs); 456 fh = POPs;
451
452 PUSHMARK (SP); 457 PUSHMARK (SP);
453 XPUSHs (sv_2mortal (fh)); 458 XPUSHs (fh);
454 } 459 }
455 break; 460 break;
456 461
457 case REQ_GROUP: 462 case REQ_GROUP:
458 req->int1 = 2; /* mark group as finished */ 463 req->int1 = 2; /* mark group as finished */
… …
523 grp->grp_first = req->grp_next; 528 grp->grp_first = req->grp_next;
524 529
525 aio_grp_dec (grp); 530 aio_grp_dec (grp);
526 } 531 }
527 532
528 if (SvTRUE (ERRSV)) 533 return !SvTRUE (ERRSV);
529 {
530 req_free (req);
531 croak (0);
532 }
533} 534}
534 535
535static void req_free (aio_req req) 536static void req_free (aio_req req)
536{ 537{
537 if (req->self) 538 if (req->self)
… …
574 575
575static void *aio_proc(void *arg); 576static void *aio_proc(void *arg);
576 577
577static void start_thread (void) 578static void start_thread (void)
578{ 579{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker)); 580 worker *wrk = calloc (1, sizeof (worker));
583 581
584 if (!wrk) 582 if (!wrk)
585 croak ("unable to allocate worker thread data"); 583 croak ("unable to allocate worker thread data");
586 584
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590#ifdef PTHREAD_SCOPE_PROCESS
591 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
592#endif
593
594 sigfillset (&fullsigset);
595
596 LOCK (wrklock); 585 LOCK (wrklock);
597 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
598 586
599 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) 587 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
600 { 588 {
601 wrk->prev = &wrk_first; 589 wrk->prev = &wrk_first;
602 wrk->next = wrk_first.next; 590 wrk->next = wrk_first.next;
603 wrk_first.next->prev = wrk; 591 wrk_first.next->prev = wrk;
604 wrk_first.next = wrk; 592 wrk_first.next = wrk;
605 ++started; 593 ++started;
606 } 594 }
607 else 595 else
608 free (wrk); 596 free (wrk);
609 597
610 sigprocmask (SIG_SETMASK, &oldsigset, 0);
611 UNLOCK (wrklock); 598 UNLOCK (wrklock);
612} 599}
613 600
614static void maybe_start_thread () 601static void maybe_start_thread ()
615{ 602{
… …
623 start_thread (); 610 start_thread ();
624} 611}
625 612
626static void req_send (aio_req req) 613static void req_send (aio_req req)
627{ 614{
615 block_sig ();
616
628 ++nreqs; 617 ++nreqs;
629 618
630 LOCK (reqlock); 619 LOCK (reqlock);
631 ++nready; 620 ++nready;
632 reqq_push (&req_queue, req); 621 reqq_push (&req_queue, req);
633 pthread_cond_signal (&reqwait); 622 COND_SIGNAL (reqwait);
634 UNLOCK (reqlock); 623 UNLOCK (reqlock);
624
625 unblock_sig ();
635 626
636 maybe_start_thread (); 627 maybe_start_thread ();
637} 628}
638 629
639static void end_thread (void) 630static void end_thread (void)
… …
645 req->type = REQ_QUIT; 636 req->type = REQ_QUIT;
646 req->pri = PRI_MAX + PRI_BIAS; 637 req->pri = PRI_MAX + PRI_BIAS;
647 638
648 LOCK (reqlock); 639 LOCK (reqlock);
649 reqq_push (&req_queue, req); 640 reqq_push (&req_queue, req);
650 pthread_cond_signal (&reqwait); 641 COND_SIGNAL (reqwait);
651 UNLOCK (reqlock); 642 UNLOCK (reqlock);
652 643
653 LOCK (wrklock); 644 LOCK (wrklock);
654 --started; 645 --started;
655 UNLOCK (wrklock); 646 UNLOCK (wrklock);
… …
710 aio_req req; 701 aio_req req;
711 702
712 if (max_poll_time) 703 if (max_poll_time)
713 gettimeofday (&tv_start, 0); 704 gettimeofday (&tv_start, 0);
714 705
706 block_sig ();
707
715 for (;;) 708 for (;;)
716 { 709 {
717 for (;;) 710 for (;;)
718 { 711 {
719 maybe_start_thread (); 712 maybe_start_thread ();
… …
726 --npending; 719 --npending;
727 720
728 if (!res_queue.size) 721 if (!res_queue.size)
729 { 722 {
730 /* read any signals sent by the worker threads */ 723 /* read any signals sent by the worker threads */
731 char buf [32]; 724 char buf [4];
732 while (read (respipe [0], buf, 32) == 32) 725 while (read (respipe [0], buf, 4) == 4)
733 ; 726 ;
734 } 727 }
735 } 728 }
736 729
737 UNLOCK (reslock); 730 UNLOCK (reslock);
… …
746 req->int1 = 1; /* mark request as delayed */ 739 req->int1 = 1; /* mark request as delayed */
747 continue; 740 continue;
748 } 741 }
749 else 742 else
750 { 743 {
751 req_invoke (req); 744 if (!req_invoke (req))
745 {
746 req_free (req);
747 unblock_sig ();
748 croak (0);
749 }
752 750
753 count++; 751 count++;
754 } 752 }
755 753
756 req_free (req); 754 req_free (req);
… …
773 poll_wait (); 771 poll_wait ();
774 772
775 ++maxreqs; 773 ++maxreqs;
776 } 774 }
777 775
776 unblock_sig ();
778 return count; 777 return count;
779} 778}
780 779
781static void create_pipe () 780static void create_pipe ()
782{ 781{
… …
800/* 799/*
801 * make our pread/pwrite safe against themselves, but not against 800 * make our pread/pwrite safe against themselves, but not against
802 * normal read/write by using a mutex. slows down execution a lot, 801 * normal read/write by using a mutex. slows down execution a lot,
803 * but that's your problem, not mine. 802 * but that's your problem, not mine.
804 */ 803 */
805static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 804static mutex_t preadwritelock = MUTEX_INIT;
806 805
807static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 806static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
808{ 807{
809 ssize_t res; 808 ssize_t res;
810 off_t ooffset; 809 off_t ooffset;
… …
861#endif 860#endif
862 861
863#if !HAVE_READDIR_R 862#if !HAVE_READDIR_R
864# define readdir_r aio_readdir_r 863# define readdir_r aio_readdir_r
865 864
866static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 865static mutex_t readdirlock = MUTEX_INIT;
867 866
868static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 867static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
869{ 868{
870 struct dirent *e; 869 struct dirent *e;
871 int errorno; 870 int errorno;
… …
1070 if (req) 1069 if (req)
1071 break; 1070 break;
1072 1071
1073 ++idle; 1072 ++idle;
1074 1073
1075 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) 1074 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1076 == ETIMEDOUT) 1075 == ETIMEDOUT)
1077 { 1076 {
1078 if (idle > max_idle) 1077 if (idle > max_idle)
1079 { 1078 {
1080 --idle; 1079 --idle;
… …
1084 UNLOCK (wrklock); 1083 UNLOCK (wrklock);
1085 goto quit; 1084 goto quit;
1086 } 1085 }
1087 1086
1088 /* we are allowed to idle, so do so without any timeout */ 1087 /* we are allowed to idle, so do so without any timeout */
1089 pthread_cond_wait (&reqwait, &reqlock); 1088 COND_WAIT (reqwait, reqlock);
1090 ts.tv_sec = time (0) + IDLE_TIMEOUT; 1089 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091 } 1090 }
1092 1091
1093 --idle; 1092 --idle;
1094 } 1093 }
… …
1114 1113
1115 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; 1114 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1116 case REQ_CLOSE: req->result = close (req->int1); break; 1115 case REQ_CLOSE: req->result = close (req->int1); break;
1117 case REQ_UNLINK: req->result = unlink (req->ptr1); break; 1116 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118 case REQ_RMDIR: req->result = rmdir (req->ptr1); break; 1117 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1118 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; 1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; 1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; 1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; 1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; 1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
… …
1153 LOCK (reslock); 1153 LOCK (reslock);
1154 1154
1155 ++npending; 1155 ++npending;
1156 1156
1157 if (!reqq_push (&res_queue, req)) 1157 if (!reqq_push (&res_queue, req))
1158 {
1158 /* write a dummy byte to the pipe so fh becomes ready */ 1159 /* write a dummy byte to the pipe so fh becomes ready */
1159 write (respipe [1], &respipe, 1); 1160 write (respipe [1], &respipe, 1);
1161
1162 /* optionally signal the main thread asynchronously */
1163 if (main_sig)
1164 pthread_kill (main_tid, main_sig);
1165 }
1160 1166
1161 self->req = 0; 1167 self->req = 0;
1162 worker_clear (self); 1168 worker_clear (self);
1163 1169
1164 UNLOCK (reslock); 1170 UNLOCK (reslock);
… …
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1268 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1274 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 1275 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 1276 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1271 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 1277 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1272 1279
1273 create_pipe (); 1280 create_pipe ();
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1275} 1282}
1276 1283
1277void 1284void
1278max_poll_reqs (int nreqs) 1285max_poll_reqs (int nreqs)
1279 PROTOTYPE: $ 1286 PROTOTYPE: $
… …
1309 OUTPUT: 1316 OUTPUT:
1310 RETVAL 1317 RETVAL
1311 1318
1312void 1319void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1320aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1314 SV * pathname 1321 SV8 * pathname
1315 int flags 1322 int flags
1316 int mode 1323 int mode
1317 SV * callback 1324 SV * callback
1318 PROTOTYPE: $$$;$ 1325 PROTOTYPE: $$$;$
1319 PPCODE: 1326 PPCODE:
1320{ 1327{
1321 dREQ; 1328 dREQ;
1322 1329
1323 req->type = REQ_OPEN; 1330 req->type = REQ_OPEN;
1324 req->sv1 = newSVsv (pathname); 1331 req->sv1 = newSVsv (pathname);
1325 req->ptr1 = SvPVbyte_nolen (pathname); 1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1326 req->int1 = flags; 1333 req->int1 = flags;
1327 req->mode = mode; 1334 req->mode = mode;
1328 1335
1329 REQ_SEND; 1336 REQ_SEND;
1330} 1337}
… …
1352void 1359void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1354 SV * fh 1361 SV * fh
1355 UV offset 1362 UV offset
1356 UV length 1363 UV length
1357 SV * data 1364 SV8 * data
1358 UV dataoffset 1365 UV dataoffset
1359 SV * callback 1366 SV * callback
1360 ALIAS: 1367 ALIAS:
1361 aio_read = REQ_READ 1368 aio_read = REQ_READ
1362 aio_write = REQ_WRITE 1369 aio_write = REQ_WRITE
… …
1382 length = svlen - dataoffset; 1389 length = svlen - dataoffset;
1383 } 1390 }
1384 else 1391 else
1385 { 1392 {
1386 /* read: grow scalar as necessary */ 1393 /* read: grow scalar as necessary */
1387 svptr = SvGROW (data, length + dataoffset); 1394 svptr = SvGROW (data, length + dataoffset + 1);
1388 } 1395 }
1389 1396
1390 if (length < 0) 1397 if (length < 0)
1391 croak ("length must not be negative"); 1398 croak ("length must not be negative");
1392 1399
… …
1413 } 1420 }
1414} 1421}
1415 1422
1416void 1423void
1417aio_readlink (path,callback=&PL_sv_undef) 1424aio_readlink (path,callback=&PL_sv_undef)
1418 SV * path 1425 SV8 * path
1419 SV * callback 1426 SV * callback
1420 PROTOTYPE: $$;$ 1427 PROTOTYPE: $$;$
1421 PPCODE: 1428 PPCODE:
1422{ 1429{
1423 SV *data; 1430 SV *data;
… …
1426 data = newSV (NAME_MAX); 1433 data = newSV (NAME_MAX);
1427 SvPOK_on (data); 1434 SvPOK_on (data);
1428 1435
1429 req->type = REQ_READLINK; 1436 req->type = REQ_READLINK;
1430 req->fh = newSVsv (path); 1437 req->fh = newSVsv (path);
1431 req->ptr2 = SvPVbyte_nolen (path); 1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1432 req->sv1 = data; 1439 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data); 1440 req->ptr1 = SvPVbyte_nolen (data);
1434 1441
1435 REQ_SEND; 1442 REQ_SEND;
1436} 1443}
… …
1478 REQ_SEND; 1485 REQ_SEND;
1479} 1486}
1480 1487
1481void 1488void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 1489aio_stat (fh_or_path,callback=&PL_sv_undef)
1483 SV * fh_or_path 1490 SV8 * fh_or_path
1484 SV * callback 1491 SV * callback
1485 ALIAS: 1492 ALIAS:
1486 aio_stat = REQ_STAT 1493 aio_stat = REQ_STAT
1487 aio_lstat = REQ_LSTAT 1494 aio_lstat = REQ_LSTAT
1488 PPCODE: 1495 PPCODE:
… …
1491 1498
1492 req->ptr2 = malloc (sizeof (Stat_t)); 1499 req->ptr2 = malloc (sizeof (Stat_t));
1493 if (!req->ptr2) 1500 if (!req->ptr2)
1494 { 1501 {
1495 req_free (req); 1502 req_free (req);
1496 croak ("out of memory during aio_req statdata allocation"); 1503 croak ("out of memory during aio_stat statdata allocation");
1497 } 1504 }
1498 1505
1499 req->flags |= FLAG_PTR2_FREE; 1506 req->flags |= FLAG_PTR2_FREE;
1500 1507
1501 if (SvPOK (fh_or_path)) 1508 if (SvPOK (fh_or_path))
1502 { 1509 {
1503 req->type = ix; 1510 req->type = ix;
1504 req->sv1 = newSVsv (fh_or_path); 1511 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (fh_or_path); 1512 req->ptr1 = SvPVbyte_nolen (req->sv1);
1506 } 1513 }
1507 else 1514 else
1508 { 1515 {
1509 req->type = REQ_FSTAT; 1516 req->type = REQ_FSTAT;
1510 req->fh = newSVsv (fh_or_path); 1517 req->fh = newSVsv (fh_or_path);
… …
1514 REQ_SEND; 1521 REQ_SEND;
1515} 1522}
1516 1523
1517void 1524void
1518aio_unlink (pathname,callback=&PL_sv_undef) 1525aio_unlink (pathname,callback=&PL_sv_undef)
1519 SV * pathname 1526 SV8 * pathname
1520 SV * callback 1527 SV * callback
1521 ALIAS: 1528 ALIAS:
1522 aio_unlink = REQ_UNLINK 1529 aio_unlink = REQ_UNLINK
1523 aio_rmdir = REQ_RMDIR 1530 aio_rmdir = REQ_RMDIR
1524 aio_readdir = REQ_READDIR 1531 aio_readdir = REQ_READDIR
… …
1526{ 1533{
1527 dREQ; 1534 dREQ;
1528 1535
1529 req->type = ix; 1536 req->type = ix;
1530 req->sv1 = newSVsv (pathname); 1537 req->sv1 = newSVsv (pathname);
1531 req->ptr1 = SvPVbyte_nolen (pathname); 1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1532 1539
1533 REQ_SEND; 1540 REQ_SEND;
1534} 1541}
1535 1542
1536void 1543void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef)
1545 SV8 * pathname
1546 UV mode
1547 SV * callback
1548 PPCODE:
1549{
1550 dREQ;
1551
1552 req->type = REQ_MKDIR;
1553 req->sv1 = newSVsv (pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 req->mode = mode;
1556
1557 REQ_SEND;
1558}
1559
1560void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1561aio_link (oldpath,newpath,callback=&PL_sv_undef)
1538 SV * oldpath 1562 SV8 * oldpath
1539 SV * newpath 1563 SV8 * newpath
1540 SV * callback 1564 SV * callback
1541 ALIAS: 1565 ALIAS:
1542 aio_link = REQ_LINK 1566 aio_link = REQ_LINK
1543 aio_symlink = REQ_SYMLINK 1567 aio_symlink = REQ_SYMLINK
1544 aio_rename = REQ_RENAME 1568 aio_rename = REQ_RENAME
… …
1548 1572
1549 req->type = ix; 1573 req->type = ix;
1550 req->fh = newSVsv (oldpath); 1574 req->fh = newSVsv (oldpath);
1551 req->ptr2 = SvPVbyte_nolen (req->fh); 1575 req->ptr2 = SvPVbyte_nolen (req->fh);
1552 req->sv1 = newSVsv (newpath); 1576 req->sv1 = newSVsv (newpath);
1553 req->ptr1 = SvPVbyte_nolen (newpath); 1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1554 1578
1555 REQ_SEND; 1579 REQ_SEND;
1556} 1580}
1557 1581
1558void 1582void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)
1560 SV * pathname 1584 SV8 * pathname
1561 SV * callback
1562 UV mode 1585 UV mode
1563 UV dev 1586 UV dev
1587 SV * callback
1564 PPCODE: 1588 PPCODE:
1565{ 1589{
1566 dREQ; 1590 dREQ;
1567 1591
1568 req->type = REQ_MKNOD; 1592 req->type = REQ_MKNOD;
1569 req->sv1 = newSVsv (pathname); 1593 req->sv1 = newSVsv (pathname);
1570 req->ptr1 = SvPVbyte_nolen (pathname); 1594 req->ptr1 = SvPVbyte_nolen (req->sv1);
1571 req->mode = (mode_t)mode; 1595 req->mode = (mode_t)mode;
1572 req->offs = dev; 1596 req->offs = dev;
1573 1597
1574 REQ_SEND; 1598 REQ_SEND;
1575} 1599}
… …
1642 PROTOTYPE: 1666 PROTOTYPE:
1643 CODE: 1667 CODE:
1644 while (nreqs) 1668 while (nreqs)
1645 { 1669 {
1646 poll_wait (); 1670 poll_wait ();
1647 poll_cb (0); 1671 poll_cb ();
1648 } 1672 }
1649 1673
1650void 1674int
1651poll() 1675poll()
1652 PROTOTYPE: 1676 PROTOTYPE:
1653 CODE: 1677 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait (); 1678 poll_wait ();
1657 poll_cb (0); 1679 RETVAL = poll_cb ();
1658 } 1680 OUTPUT:
1681 RETVAL
1659 1682
1660int 1683int
1661poll_fileno() 1684poll_fileno()
1662 PROTOTYPE: 1685 PROTOTYPE:
1663 CODE: 1686 CODE:
… …
1675 1698
1676void 1699void
1677poll_wait() 1700poll_wait()
1678 PROTOTYPE: 1701 PROTOTYPE:
1679 CODE: 1702 CODE:
1680 if (nreqs)
1681 poll_wait (); 1703 poll_wait ();
1704
1705void
1706setsig (int signum = SIGIO)
1707 PROTOTYPE: ;$
1708 CODE:
1709{
1710 if (block_sig_level)
1711 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712
1713 LOCK (reslock);
1714 main_tid = pthread_self ();
1715 main_sig = signum;
1716 UNLOCK (reslock);
1717
1718 if (main_sig && npending)
1719 pthread_kill (main_tid, main_sig);
1720}
1721
1722void
1723aio_block (SV *cb)
1724 PROTOTYPE: &
1725 PPCODE:
1726{
1727 int count;
1728
1729 block_sig ();
1730 PUSHMARK (SP);
1731 PUTBACK;
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1733 SPAGAIN;
1734 unblock_sig ();
1735
1736 if (SvTRUE (ERRSV))
1737 croak (0);
1738
1739 XSRETURN (count);
1740}
1682 1741
1683int 1742int
1684nreqs() 1743nreqs()
1685 PROTOTYPE: 1744 PROTOTYPE:
1686 CODE: 1745 CODE:
… …
1736 PPCODE: 1795 PPCODE:
1737{ 1796{
1738 int i; 1797 int i;
1739 aio_req req; 1798 aio_req req;
1740 1799
1800 if (main_sig && !block_sig_level)
1801 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1802
1741 if (grp->int1 == 2) 1803 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1804 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 1805
1744 for (i = 1; i < items; ++i ) 1806 for (i = 1; i < items; ++i )
1745 { 1807 {

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