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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.187 by root, Sat Jul 16 16:46:10 2011 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
18#ifdef _WIN32 33#ifdef _WIN32
19 34
20# define SIGIO 0 35# define EIO_STRUCT_DIRENT Direntry_t
21 typedef Direntry_t X_DIRENT;
22#undef malloc 36# undef malloc
23#undef free 37# undef free
24 38
25// perl overrides all those nice win32 functions 39// perl overrides all those nice win32 functions
26# undef open 40# undef open
27# undef read 41# undef read
28# undef write 42# undef write
43# undef send
44# undef recv
29# undef stat 45# undef lstat
30# undef fstat
31# define lstat stat
32# undef truncate 46# undef truncate
33# undef ftruncate 47# undef ftruncate
34# undef open 48# undef open
49# undef link
35# undef close 50# undef close
36# undef unlink 51# undef unlink
52# undef mkdir
37# undef rmdir 53# undef rmdir
38# undef rename 54# undef rename
39# undef lseek 55# undef lseek
56# undef opendir
57# undef readdir
58# undef closedir
59# undef chmod
60# undef fchmod
40 61
41# define chown(a,b,c) (errno = ENOSYS, -1)
42# define fchown(a,b,c) (errno = ENOSYS, -1)
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0) 62# define opendir(fd) EIO_ERRNO (ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1) 63# define readdir(fd) EIO_ENOSYS ()
52# define closedir(fd) (errno = ENOSYS, -1) 64# define closedir(fd) EIO_ENOSYS ()
53# define mkdir(a,b) mkdir (a)
54 65
55#else 66#else
56 67
57# include "autoconf/config.h"
58# include <sys/time.h> 68# include <sys/time.h>
59# include <sys/select.h> 69# include <sys/select.h>
60# include <unistd.h> 70# include <unistd.h>
61# include <utime.h> 71# include <utime.h>
62# include <signal.h> 72# include <signal.h>
63 typedef struct dirent X_DIRENT;
64 73
65#endif
66
67#if HAVE_SENDFILE
68# if __linux
69# include <sys/sendfile.h>
70# elif __freebsd
71# include <sys/socket.h>
72# include <sys/uio.h>
73# elif __hpux
74# include <sys/socket.h>
75# elif __solaris /* not yet */
76# include <sys/sendfile.h>
77# else
78# error sendfile support requested but not available
79# endif 74#endif
80#endif
81 75
82/* number of seconds after which idle threads exit */ 76#define EIO_STRUCT_STAT Stat_t
83#define IDLE_TIMEOUT 10
84
85/* used for struct dirent, AIX doesn't provide it */
86#ifndef NAME_MAX
87# define NAME_MAX 4096
88#endif
89
90/* buffer size for various temporary buffers */
91#define AIO_BUFSIZE 65536
92 77
93/* use NV for 32 bit perls as it allows larger offsets */ 78/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8 79#if IVSIZE >= 8
80# define VAL64 IV
95# define SvVAL64 SvIV 81# define SvVAL64 SvIV
82# define newSVval64 newSViv
96#else 83#else
84# define VAL64 NV
97# define SvVAL64 SvNV 85# define SvVAL64 SvNV
86# define newSVval64 newSVnv
98#endif 87#endif
99 88
100#define dBUF \ 89/*****************************************************************************/
101 char *aio_buf; \ 90
102 X_LOCK (wrklock); \ 91#if __GNUC__ >= 3
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 92# define expect(expr,value) __builtin_expect ((expr),(value))
104 X_UNLOCK (wrklock); \ 93#else
105 if (!aio_buf) \ 94# define expect(expr,value) (expr)
106 return -1; 95#endif
96
97#define expect_false(expr) expect ((expr) != 0, 0)
98#define expect_true(expr) expect ((expr) != 0, 1)
99
100/*****************************************************************************/
107 101
108typedef SV SV8; /* byte-sv, used for argument-checking */ 102typedef SV SV8; /* byte-sv, used for argument-checking */
103typedef int aio_rfd; /* read file desriptor */
104typedef int aio_wfd; /* write file descriptor */
105
106static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
107
108#define EIO_REQ_MEMBERS \
109 SV *callback; \
110 SV *sv1, *sv2; \
111 STRLEN stroffset; \
112 SV *self;
113
114#define EIO_NO_WRAPPERS 1
115
116#include "libeio/config.h"
117#include "libeio/eio.h"
118
119/* Linux/others */
120#ifndef O_ASYNC
121# define O_ASYNC 0
122#endif
123#ifndef O_DIRECT
124# define O_DIRECT 0
125#endif
126#ifndef O_NOATIME
127# define O_NOATIME 0
128#endif
129
130/* POSIX */
131#ifndef O_CLOEXEC
132# define O_CLOEXEC 0
133#endif
134#ifndef O_NOFOLLOW
135# define O_NOFOLLOW 0
136#endif
137#ifndef O_NOCTTY
138# define O_NOCTTY 0
139#endif
140#ifndef O_NONBLOCK
141# define O_NONBLOCK 0
142#endif
143#ifndef O_EXEC
144# define O_EXEC 0
145#endif
146#ifndef O_SEARCH
147# define O_SEARCH 0
148#endif
149#ifndef O_DIRECTORY
150# define O_DIRECTORY 0
151#endif
152#ifndef O_DSYNC
153# define O_DSYNC 0
154#endif
155#ifndef O_RSYNC
156# define O_RSYNC 0
157#endif
158#ifndef O_SYNC
159# define O_SYNC 0
160#endif
161#ifndef O_TTY_INIT
162# define O_TTY_INIT 0
163#endif
164
165#ifndef POSIX_FADV_NORMAL
166# define POSIX_FADV_NORMAL 0
167#endif
168#ifndef POSIX_FADV_SEQUENTIAL
169# define POSIX_FADV_SEQUENTIAL 0
170#endif
171#ifndef POSIX_FADV_RANDOM
172# define POSIX_FADV_RANDOM 0
173#endif
174#ifndef POSIX_FADV_NOREUSE
175# define POSIX_FADV_NOREUSE 0
176#endif
177#ifndef POSIX_FADV_WILLNEED
178# define POSIX_FADV_WILLNEED 0
179#endif
180#ifndef POSIX_FADV_DONTNEED
181# define POSIX_FADV_DONTNEED 0
182#endif
183
184#if !HAVE_POSIX_FADVISE
185# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
186#endif
187
188#ifndef POSIX_MADV_NORMAL
189# define POSIX_MADV_NORMAL 0
190#endif
191#ifndef POSIX_MADV_SEQUENTIAL
192# define POSIX_MADV_SEQUENTIAL 0
193#endif
194#ifndef POSIX_MADV_RANDOM
195# define POSIX_MADV_RANDOM 0
196#endif
197#ifndef POSIX_MADV_WILLNEED
198# define POSIX_MADV_WILLNEED 0
199#endif
200#ifndef POSIX_MADV_DONTNEED
201# define POSIX_MADV_DONTNEED 0
202#endif
203
204#if !HAVE_POSIX_MADVISE
205# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
206#endif
207
208#ifndef PROT_NONE
209# define PROT_NONE 0
210#endif
211#ifndef PROT_READ
212# define PROT_READ 0
213#endif
214#ifndef PROT_WRITE
215# define PROT_READ 0
216#endif
217#ifndef PROT_EXEC
218# define PROT_EXEC 0
219#endif
220
221#ifndef ST_RDONLY
222# define ST_RDONLY 0
223#endif
224#ifndef ST_NOSUID
225# define ST_NOSUID 0
226#endif
227#ifndef ST_NODEV
228# define ST_NODEV 0
229#endif
230#ifndef ST_NOEXEC
231# define ST_NOEXEC 0
232#endif
233#ifndef ST_SYNCHRONOUS
234# define ST_SYNCHRONOUS 0
235#endif
236#ifndef ST_MANDLOCK
237# define ST_MANDLOCK 0
238#endif
239#ifndef ST_WRITE
240# define ST_WRITE 0
241#endif
242#ifndef ST_APPEND
243# define ST_APPEND 0
244#endif
245#ifndef ST_IMMUTABLE
246# define ST_IMMUTABLE 0
247#endif
248#ifndef ST_NOATIME
249# define ST_NOATIME 0
250#endif
251#ifndef ST_NODIRATIME
252# define ST_NODIRATIME 0
253#endif
254#ifndef ST_RELATIME
255# define ST_RELATIME 0
256#endif
257
258#ifndef S_IFIFO
259# define S_IFIFO 0
260#endif
261#ifndef S_IFCHR
262# define S_IFCHR 0
263#endif
264#ifndef S_IFBLK
265# define S_IFBLK 0
266#endif
267#ifndef S_IFLNK
268# define S_IFLNK 0
269#endif
270#ifndef S_IFREG
271# define S_IFREG 0
272#endif
273#ifndef S_IFDIR
274# define S_IFDIR 0
275#endif
276#ifndef S_IFWHT
277# define S_IFWHT 0
278#endif
279#ifndef S_IFSOCK
280# define S_IFSOCK 0
281#endif
282
283#ifndef MAP_ANONYMOUS
284# ifdef MAP_ANON
285# define MAP_ANONYMOUS MAP_ANON
286# else
287# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
288# endif
289#endif
290#ifndef MAP_HUGETLB
291# define MAP_HUGETLB 0
292#endif
293#ifndef MAP_LOCKED
294# define MAP_LOCKED 0
295#endif
296#ifndef MAP_NORESERVE
297# define MAP_NORESERVE 0
298#endif
299#ifndef MAP_POPULATE
300# define MAP_POPULATE 0
301#endif
302#ifndef MAP_NONBLOCK
303# define MAP_NONBLOCK 0
304#endif
305
306#ifndef makedev
307# define makedev(maj,min) (((maj) << 8) | (min))
308#endif
309#ifndef major
310# define major(dev) ((dev) >> 8)
311#endif
312#ifndef minor
313# define minor(dev) ((dev) & 0xff)
314#endif
315
316#ifndef PAGESIZE
317# define PAGESIZE sysconf (_SC_PAGESIZE)
318#endif
319
320static int req_invoke (eio_req *req);
321#define EIO_FINISH(req) req_invoke (req)
322static void req_destroy (eio_req *grp);
323#define EIO_DESTROY(req) req_destroy (req)
109 324
110enum { 325enum {
111 REQ_QUIT, 326 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 327};
127 328
128#define AIO_REQ_KLASS "IO::AIO::REQ" 329#include "libeio/eio.c"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130 330
131typedef struct aio_cb
132{
133 struct aio_cb *volatile next;
134
135 SV *callback;
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142
143 STRLEN stroffset;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148
149 unsigned char flags;
150 unsigned char pri;
151
152 SV *self; /* the perl counterpart of this request, if any */
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
154} aio_cb;
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req; 331typedef eio_req *aio_req;
163typedef aio_cb *aio_req_ornot; 332typedef eio_req *aio_req_ornot;
164 333
165enum { 334static SV *on_next_submit;
166 PRI_MIN = -4, 335static int next_pri = EIO_PRI_DEFAULT;
167 PRI_MAX = 4, 336static int max_outstanding;
168 337
169 DEFAULT_PRI = 0, 338static s_epipe respipe;
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173 339
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return;
196
197 if (!main_sig)
198 return;
199
200 sigemptyset (&ss);
201 sigaddset (&ss, main_sig);
202 pthread_sigmask (SIG_BLOCK, &ss, 0);
203}
204
205void unblock_sig ()
206{
207 sigset_t ss;
208
209 if (--block_sig_level)
210 return;
211
212 if (!main_sig)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 {
245 closedir (wrk->dirp);
246 wrk->dirp = 0;
247 }
248
249 if (wrk->dbuf)
250 {
251 free (wrk->dbuf);
252 wrk->dbuf = 0;
253 }
254}
255
256static void worker_free (worker *wrk)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0;
351
352 --q->size;
353
354 for (pri = NUM_PRI; pri--; )
355 {
356 aio_req req = q->qs[pri];
357
358 if (req)
359 {
360 if (!(q->qs[pri] = req->next))
361 q->qe[pri] = 0;
362
363 return req;
364 }
365 }
366
367 abort ();
368}
369
370static int poll_cb ();
371static int req_invoke (aio_req req);
372static void req_destroy (aio_req req); 340static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 341static void req_cancel (aio_req req);
374 342
343static void want_poll (void)
344{
345 /* write a dummy byte to the pipe so fh becomes ready */
346 s_epipe_signal (&respipe);
347}
348
349static void done_poll (void)
350{
351 /* read any signals sent by the worker threads */
352 s_epipe_drain (&respipe);
353}
354
375/* must be called at most once */ 355/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 356static SV *req_sv (aio_req req, HV *stash)
377{ 357{
378 if (!req->self) 358 if (!req->self)
379 { 359 {
380 req->self = (SV *)newHV (); 360 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 361 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 362 }
383 363
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 364 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 365}
386 366
387static aio_req SvAIO_REQ (SV *sv) 367static aio_req SvAIO_REQ (SV *sv)
388{ 368{
389 MAGIC *mg; 369 MAGIC *mg;
390 370
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 371 if (!SvROK (sv)
372 || (SvSTASH (SvRV (sv)) != aio_grp_stash
373 && SvSTASH (SvRV (sv)) != aio_req_stash
374 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 375 croak ("object of class IO::AIO::REQ expected");
393 376
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 377 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 378
396 return mg ? (aio_req)mg->mg_ptr : 0; 379 return mg ? (aio_req)mg->mg_ptr : 0;
397} 380}
398 381
399static void aio_grp_feed (aio_req grp) 382static void aio_grp_feed (aio_req grp)
400{ 383{
401 block_sig (); 384 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 385 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 386 dSP;
410 387
411 ENTER; 388 ENTER;
412 SAVETMPS; 389 SAVETMPS;
413 PUSHMARK (SP); 390 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 391 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 392 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 393 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 394 SPAGAIN;
418 FREETMPS; 395 FREETMPS;
419 LEAVE; 396 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 397 }
430
431 unblock_sig ();
432} 398}
433 399
434static void aio_grp_dec (aio_req grp) 400static void req_submit (eio_req *req)
435{ 401{
436 --grp->size; 402 eio_submit (req);
437 403
438 /* call feeder, if applicable */ 404 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 405 {
444 block_sig (); 406 dSP;
407 SV *cb = sv_2mortal (on_next_submit);
445 408
446 if (!req_invoke (grp)) 409 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 410
453 req_destroy (grp); 411 PUSHMARK (SP);
454 unblock_sig (); 412 PUTBACK;
413 call_sv (cb, G_DISCARD | G_EVAL);
455 } 414 }
456} 415}
457 416
458static int req_invoke (aio_req req) 417static int req_invoke (eio_req *req)
459{ 418{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 419 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 420 SvREADONLY_off (req->sv2);
464 421
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 422 if (!EIO_CANCELLED (req) && req->callback)
466 { 423 {
424 dSP;
425 static SV *sv_result_cache; /* caches the result integer SV */
426 SV *sv_result;
427
467 ENTER; 428 ENTER;
468 SAVETMPS; 429 SAVETMPS;
469 PUSHMARK (SP); 430 PUSHMARK (SP);
470 EXTEND (SP, 1); 431 EXTEND (SP, 1);
471 432
433 /* do not recreate the result IV from scratch each time */
434 if (expect_true (sv_result_cache))
435 {
436 sv_result = sv_result_cache; sv_result_cache = 0;
437 SvIV_set (sv_result, req->result);
438 SvIOK_only (sv_result);
439 }
440 else
441 {
442 sv_result = newSViv (req->result);
443 SvREADONLY_on (sv_result);
444 }
445
472 switch (req->type) 446 switch (req->type)
473 { 447 {
474 case REQ_READDIR: 448 case EIO_READDIR:
475 { 449 {
476 SV *rv = &PL_sv_undef; 450 SV *rv = &PL_sv_undef;
477 451
478 if (req->result >= 0) 452 if (req->result >= 0)
479 { 453 {
480 int i; 454 int i;
481 char *buf = req->ptr2; 455 char *names = (char *)req->ptr2;
456 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 457 AV *av = newAV ();
483 458
484 av_extend (av, req->result - 1); 459 av_extend (av, req->result - 1);
485 460
486 for (i = 0; i < req->result; ++i) 461 for (i = 0; i < req->result; ++i)
487 { 462 {
488 SV *sv = newSVpv (buf, 0); 463 if (req->int1 & EIO_READDIR_DENTS)
464 {
465 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 466
467 if (req->int1 & EIO_READDIR_CUSTOM2)
468 {
469 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
470 AV *avent = newAV ();
471
472 av_extend (avent, 2);
473
474 if (!sv_type [ent->type])
475 {
476 sv_type [ent->type] = newSViv (ent->type);
477 SvREADONLY_on (sv_type [ent->type]);
478 }
479
480 av_store (avent, 0, namesv);
481 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
482 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
483
484 av_store (av, i, newRV_noinc ((SV *)avent));
485 }
486 else
490 av_store (av, i, sv); 487 av_store (av, i, namesv);
488
489 ++ent;
490 }
491 else
492 {
493 SV *name = newSVpv (names, 0);
494 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 495 names += SvCUR (name) + 1;
496 }
492 } 497 }
493 498
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 499 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 500 }
496 501
497 PUSHs (rv); 502 PUSHs (rv);
503
504 if (req->int1 & EIO_READDIR_CUSTOM1)
505 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 506 }
499 break; 507 break;
500 508
501 case REQ_OPEN: 509 case EIO_OPEN:
502 { 510 {
503 /* convert fd to fh */ 511 /* convert fd to fh */
504 SV *fh; 512 SV *fh = &PL_sv_undef;
505 513
506 PUSHs (sv_2mortal (newSViv (req->result))); 514 if (req->result >= 0)
507 PUTBACK; 515 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 516 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 517 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
518 char sym [64];
519 int symlen;
520
521 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
522 gv_init (gv, aio_stash, sym, symlen, 0);
510 523
511 fh = POPs; 524 symlen = snprintf (
512 PUSHMARK (SP); 525 sym,
526 sizeof (sym),
527 "%s&=%d",
528 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
529 (int)req->result
530 );
531
532 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
533 fh = (SV *)gv;
534 }
535
513 XPUSHs (fh); 536 PUSHs (fh);
514 } 537 }
515 break; 538 break;
516 539
540 case EIO_STATVFS:
541 case EIO_FSTATVFS:
542 {
543 SV *rv = &PL_sv_undef;
544
545#ifndef _WIN32
546 if (req->result >= 0)
547 {
548 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549 HV *hv = newHV ();
550
551 rv = sv_2mortal (newRV_noinc ((SV *)hv));
552
553 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
555 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
556 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
562 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564 }
565#endif
566
567 PUSHs (rv);
568 }
569
570 break;
571
517 case REQ_GROUP: 572 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 573 req->int1 = 2; /* mark group as finished */
519 574
520 if (req->sv1) 575 if (req->sv1)
521 { 576 {
522 int i; 577 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 581 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 582 PUSHs (*av_fetch (av, i, 0));
528 } 583 }
529 break; 584 break;
530 585
531 case REQ_NOP: 586 case EIO_NOP:
532 case REQ_BUSY: 587 case EIO_BUSY:
533 break; 588 break;
534 589
535 case REQ_READLINK: 590 case EIO_READLINK:
591 case EIO_REALPATH:
536 if (req->result > 0) 592 if (req->result > 0)
537 { 593 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
538 SvCUR_set (req->sv2, req->result);
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2);
541 }
542 break; 594 break;
543 595
544 case REQ_STAT: 596 case EIO_STAT:
545 case REQ_LSTAT: 597 case EIO_LSTAT:
546 case REQ_FSTAT: 598 case EIO_FSTAT:
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 599 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result; 600 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2); 601 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result))); 602 PUSHs (sv_result);
551 break; 603 break;
552 604
553 case REQ_READ: 605 case EIO_READ:
606 {
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 607 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0; 608 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result))); 609 SvPOK_only (req->sv2);
610 SvSETMAGIC (req->sv2);
611 PUSHs (sv_result);
612 }
557 break; 613 break;
558 614
615 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
616 if (req->result > 0)
617 SvIV_set (sv_result, 0);
618 /* FALLTHROUGH */
619
559 default: 620 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 621 PUSHs (sv_result);
561 break; 622 break;
562 } 623 }
563 624
564 errno = req->errorno; 625 errno = req->errorno;
565 626
566 PUTBACK; 627 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 628 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 629 SPAGAIN;
630
631 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
632 SvREFCNT_dec (sv_result);
633 else
634 sv_result_cache = sv_result;
569 635
570 FREETMPS; 636 FREETMPS;
571 LEAVE; 637 LEAVE;
638
639 PUTBACK;
572 } 640 }
573 641
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 642 return !!SvTRUE (ERRSV);
589} 643}
590 644
591static void req_destroy (aio_req req) 645static void req_destroy (aio_req req)
592{ 646{
593 if (req->self) 647 if (req->self)
… …
598 652
599 SvREFCNT_dec (req->sv1); 653 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 654 SvREFCNT_dec (req->sv2);
601 SvREFCNT_dec (req->callback); 655 SvREFCNT_dec (req->callback);
602 656
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 657 Safefree (req);
607} 658}
608 659
609static void req_cancel_subs (aio_req grp) 660static void req_cancel_subs (aio_req grp)
610{ 661{
611 aio_req sub; 662 aio_req sub;
612 663
613 if (grp->type != REQ_GROUP) 664 if (grp->type != EIO_GROUP)
614 return; 665 return;
615 666
616 SvREFCNT_dec (grp->sv2); 667 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 668 grp->sv2 = 0;
618 669
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 670 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 671}
622 672
623static void req_cancel (aio_req req) 673static void create_respipe (void)
624{ 674{
625 req->flags |= FLAG_CANCELLED; 675 if (s_epipe_renew (&respipe))
626 676 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 677}
629 678
630X_THREAD_PROC (aio_proc);
631
632static void start_thread (void)
633{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait () 679static void poll_wait (void)
726{ 680{
727 fd_set rfd;
728
729 while (nreqs) 681 while (eio_nreqs ())
730 { 682 {
731 int size; 683 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 684
685 X_LOCK (reslock);
733 size = res_queue.size; 686 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 687 X_UNLOCK (reslock);
735 688
736 if (size) 689 if (size)
737 return; 690 return;
738 691
739 maybe_start_thread (); 692 etp_maybe_start_thread ();
740 693
741 FD_ZERO(&rfd); 694 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 695 }
746} 696}
747 697
748static int poll_cb () 698static int poll_cb (void)
749{ 699{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 700 for (;;)
763 { 701 {
764 for (;;) 702 int res = eio_poll ();
765 {
766 maybe_start_thread ();
767 703
768 X_LOCK (reslock); 704 if (res > 0)
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 {
773 --npending;
774
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 }
796 else
797 {
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0); 705 croak (0);
803 }
804 706
805 count++; 707 if (!max_outstanding || max_outstanding > eio_nreqs ())
806 } 708 return res;
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 }
821
822 if (nreqs <= max_outstanding)
823 break;
824 709
825 poll_wait (); 710 poll_wait ();
826
827 ++maxreqs;
828 } 711 }
712}
829 713
830 unblock_sig (); 714static void atfork_child (void)
831 return count; 715{
716 create_respipe ();
832} 717}
833 718
834/*****************************************************************************/ 719/*****************************************************************************/
835/* work around various missing functions */
836 720
837#if !HAVE_PREADWRITE 721#if !_POSIX_MAPPED_FILES
838# define pread aio_pread 722# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
839# define pwrite aio_pwrite 723# define munmap(addr,length) (errno = ENOSYS, -1)
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif 724#endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014 725
1015 if (res < 0 726#if !_POSIX_MEMORY_PROTECTION
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 727# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1017#if __solaris 728# define PROT_NONE 0
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 729# define PROT_WRITE 0
730# define MAP_PRIVATE 0
731# define MAP_SHARED 0
732# define MAP_FIXED 0
1019#endif 733#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025 734
1026 res = 0; 735#define MMAP_MAGIC PERL_MAGIC_ext
1027 736
1028 while (count) 737static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1029 { 738{
1030 ssize_t cnt; 739 int old_errno = errno;
1031 740 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 741 errno = old_errno;
1033 742
1034 if (cnt <= 0) 743 mg->mg_obj = 0; /* just in case */
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039 744
1040 cnt = write (ofd, aio_buf, cnt); 745 SvREADONLY_off (sv);
1041 746
1042 if (cnt <= 0) 747 if (SvPVX (sv) != mg->mg_ptr)
1043 { 748 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047 749
1048 offset += cnt; 750 SvCUR_set (sv, 0);
1049 res += cnt; 751 SvPVX (sv) = 0;
1050 count -= cnt; 752 SvOK_off (sv);
1051 }
1052 }
1053 753
1054 return res; 754 return 0;
1055} 755}
1056 756
1057/* read a full directory */ 757static MGVTBL mmap_vtbl = {
1058static void scandir_ (aio_req req, worker *self) 758 0, 0, 0, 0, mmap_free
1059{ 759};
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117 760
1118/*****************************************************************************/ 761/*****************************************************************************/
1119 762
1120X_THREAD_PROC (aio_proc) 763static SV * get_cb (SV *cb_sv)
1121{ 764{
1122 {//D 765 SvGETMAGIC (cb_sv);
1123 aio_req req; 766 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355} 767}
1356 768
1357#define dREQ \ 769#define dREQ \
770 SV *cb_cv; \
1358 aio_req req; \ 771 aio_req req; \
1359 int req_pri = next_pri; \ 772 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \ 773 next_pri = EIO_PRI_DEFAULT; \
1361 \ 774 \
1362 if (SvOK (callback) && !SvROK (callback)) \ 775 cb_cv = get_cb (callback); \
1363 croak ("callback must be undef or of reference type"); \
1364 \ 776 \
1365 Newz (0, req, 1, aio_cb); \ 777 Newz (0, req, 1, eio_req); \
1366 if (!req) \ 778 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \ 779 croak ("out of memory during eio_req allocation"); \
1368 \ 780 \
1369 req->callback = newSVsv (callback); \ 781 req->callback = SvREFCNT_inc (cb_cv); \
1370 req->pri = req_pri 782 req->pri = req_pri
1371 783
1372#define REQ_SEND \ 784#define REQ_SEND \
785 PUTBACK; \
1373 req_send (req); \ 786 req_submit (req); \
787 SPAGAIN; \
1374 \ 788 \
1375 if (GIMME_V != G_VOID) \ 789 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 790 XPUSHs (req_sv (req, aio_req_stash));
1377 791
1378MODULE = IO::AIO PACKAGE = IO::AIO 792MODULE = IO::AIO PACKAGE = IO::AIO
1379 793
1380PROTOTYPES: ENABLE 794PROTOTYPES: ENABLE
1381 795
1382BOOT: 796BOOT:
1383{ 797{
798 static const struct {
799 const char *name;
800 IV iv;
801 } *civ, const_iv[] = {
802# define const_niv(name, value) { # name, (IV) value },
803# define const_iv(name) { # name, (IV) name },
804# define const_eio(name) { # name, (IV) EIO_ ## name },
805 const_iv (EXDEV)
806 const_iv (ENOSYS)
807 const_iv (O_RDONLY)
808 const_iv (O_WRONLY)
809 const_iv (O_RDWR)
810 const_iv (O_CREAT)
811 const_iv (O_TRUNC)
812 const_iv (O_EXCL)
813 const_iv (O_APPEND)
814
815 const_iv (O_ASYNC)
816 const_iv (O_DIRECT)
817 const_iv (O_NOATIME)
818
819 const_iv (O_CLOEXEC)
820 const_iv (O_NOCTTY)
821 const_iv (O_NOFOLLOW)
822 const_iv (O_NONBLOCK)
823 const_iv (O_EXEC)
824 const_iv (O_SEARCH)
825 const_iv (O_DIRECTORY)
826 const_iv (O_DSYNC)
827 const_iv (O_RSYNC)
828 const_iv (O_SYNC)
829 const_iv (O_TTY_INIT)
830
831 const_iv (S_IFIFO)
832 const_iv (S_IFCHR)
833 const_iv (S_IFBLK)
834 const_iv (S_IFLNK)
835 const_iv (S_IFREG)
836 const_iv (S_IFDIR)
837 const_iv (S_IFWHT)
838 const_iv (S_IFSOCK)
839 const_iv (S_IFMT)
840
841 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
842 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
843 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
844 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
845 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
846 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
847
848 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
849 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
850 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
851 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
852 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
853
854 const_iv (ST_RDONLY)
855 const_iv (ST_NOSUID)
856 const_iv (ST_NODEV)
857 const_iv (ST_NOEXEC)
858 const_iv (ST_SYNCHRONOUS)
859 const_iv (ST_MANDLOCK)
860 const_iv (ST_WRITE)
861 const_iv (ST_APPEND)
862 const_iv (ST_IMMUTABLE)
863 const_iv (ST_NOATIME)
864 const_iv (ST_NODIRATIME)
865 const_iv (ST_RELATIME)
866
867 const_iv (PROT_NONE)
868 const_iv (PROT_EXEC)
869 const_iv (PROT_READ)
870 const_iv (PROT_WRITE)
871
872 /*const_iv (MAP_FIXED)*/
873 const_iv (MAP_PRIVATE)
874 const_iv (MAP_SHARED)
875 const_iv (MAP_ANONYMOUS)
876
877 /* linuxish */
878 const_iv (MAP_HUGETLB)
879 const_iv (MAP_LOCKED)
880 const_iv (MAP_NORESERVE)
881 const_iv (MAP_POPULATE)
882 const_iv (MAP_NONBLOCK)
883
884 const_eio (MCL_FUTURE)
885 const_eio (MCL_CURRENT)
886
887 const_eio (MS_ASYNC)
888 const_eio (MS_INVALIDATE)
889 const_eio (MS_SYNC)
890
891 const_eio (MT_MODIFY)
892
893 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
894 const_eio (SYNC_FILE_RANGE_WRITE)
895 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
896
897 const_eio (FALLOC_FL_KEEP_SIZE)
898
899 const_eio (READDIR_DENTS)
900 const_eio (READDIR_DIRS_FIRST)
901 const_eio (READDIR_STAT_ORDER)
902 const_eio (READDIR_FOUND_UNKNOWN)
903
904 const_eio (DT_UNKNOWN)
905 const_eio (DT_FIFO)
906 const_eio (DT_CHR)
907 const_eio (DT_DIR)
908 const_eio (DT_BLK)
909 const_eio (DT_REG)
910 const_eio (DT_LNK)
911 const_eio (DT_SOCK)
912 const_eio (DT_WHT)
913 };
914
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 915 aio_stash = gv_stashpv ("IO::AIO" , 1);
916 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
917 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1385 918
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 919 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 920 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 921
1403 if (!create_pipe (respipe)) 922 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 923
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 924 create_respipe ();
1407}
1408 925
926 if (eio_init (want_poll, done_poll) < 0)
927 croak ("IO::AIO: unable to initialise eio library");
928
929 /* atfork child called in fifo order, so before eio's handler */
930 X_THREAD_ATFORK (0, 0, atfork_child);
931}
932
1409void 933void
1410max_poll_reqs (int nreqs) 934max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 935 PROTOTYPE: $
1412 CODE: 936 CODE:
1413 max_poll_reqs = nreqs; 937 eio_set_max_poll_reqs (nreqs);
1414 938
1415void 939void
1416max_poll_time (double nseconds) 940max_poll_time (double nseconds)
1417 PROTOTYPE: $ 941 PROTOTYPE: $
1418 CODE: 942 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 943 eio_set_max_poll_time (nseconds);
1420 944
1421void 945void
1422min_parallel (int nthreads) 946min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 947 PROTOTYPE: $
1432 CODE: 948 CODE:
1433 set_max_idle (nthreads); 949 eio_set_min_parallel (nthreads);
1434 950
1435int 951void
1436max_outstanding (int maxreqs) 952max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 953 PROTOTYPE: $
1438 CODE: 954 CODE:
1439 RETVAL = max_outstanding; 955 eio_set_max_parallel (nthreads);
956
957void
958max_idle (unsigned int nthreads)
959 PROTOTYPE: $
960 CODE:
961 eio_set_max_idle (nthreads);
962
963void
964idle_timeout (unsigned int seconds)
965 PROTOTYPE: $
966 CODE:
967 eio_set_idle_timeout (seconds);
968
969void
970max_outstanding (unsigned int maxreqs)
971 PROTOTYPE: $
972 CODE:
1440 max_outstanding = maxreqs; 973 max_outstanding = maxreqs;
1441 OUTPUT:
1442 RETVAL
1443 974
1444void 975void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 976aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 977 PPCODE:
1448{ 978{
1449 dREQ; 979 dREQ;
1450 980
1451 req->type = REQ_OPEN; 981 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 982 req->sv1 = newSVsv (pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1); 983 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 984 req->int1 = flags;
1455 req->mode = mode; 985 req->int2 = mode;
1456 986
1457 REQ_SEND; 987 REQ_SEND;
1458} 988}
1459 989
1460void 990void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 991aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 992 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 993 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 994 aio_fdatasync = EIO_FDATASYNC
1467 PPCODE: 995 PPCODE:
1468{ 996{
997 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 998 dREQ;
1470 999
1471 req->type = ix; 1000 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1001 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1002 req->int1 = fd;
1003
1004 REQ_SEND (req);
1005}
1006
1007void
1008aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1009 PPCODE:
1010{
1011 int fd = s_fileno_croak (fh, 0);
1012 dREQ;
1013
1014 req->type = EIO_SYNC_FILE_RANGE;
1015 req->sv1 = newSVsv (fh);
1016 req->int1 = fd;
1017 req->offs = offset;
1018 req->size = nbytes;
1019 req->int2 = flags;
1020
1021 REQ_SEND (req);
1022}
1023
1024void
1025aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1026 PPCODE:
1027{
1028 int fd = s_fileno_croak (fh, 0);
1029 dREQ;
1030
1031 req->type = EIO_FALLOCATE;
1032 req->sv1 = newSVsv (fh);
1033 req->int1 = fd;
1034 req->int2 = mode;
1035 req->offs = offset;
1036 req->size = len;
1037
1038 REQ_SEND (req);
1039}
1040
1041void
1042aio_close (SV *fh, SV *callback=&PL_sv_undef)
1043 PPCODE:
1044{
1045 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1046 int fd = s_fileno_croak (fh, 0);
1047 dREQ;
1048
1049 if (expect_false (close_fd < 0))
1050 {
1051#ifdef _WIN32
1052 close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);
1053#else
1054 int pipefd [2];
1055
1056 if (pipe (pipefd) < 0
1057 || close (pipefd [1]) < 0
1058 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1059 abort (); /*D*/
1060
1061 close_fd = pipefd [0];
1062#endif
1063 }
1064
1065 req->type = EIO_DUP2;
1066 req->int1 = close_fd;
1067 req->sv2 = newSVsv (fh);
1068 req->int2 = fd;
1474 1069
1475 REQ_SEND (req); 1070 REQ_SEND (req);
1476} 1071}
1477 1072
1478void 1073void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1074aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1075 ALIAS:
1481 aio_read = REQ_READ 1076 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1077 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1078 PPCODE:
1485{ 1079{
1486 STRLEN svlen; 1080 STRLEN svlen;
1081 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1082 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1083 UV len = SvUV (length);
1489 1084
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1085 if (dataoffset < 0)
1494 dataoffset += svlen; 1086 dataoffset += svlen;
1495 1087
1496 if (dataoffset < 0 || dataoffset > svlen) 1088 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1089 croak ("dataoffset outside of data scalar");
1498 1090
1499 if (ix == REQ_WRITE) 1091 if (ix == EIO_WRITE)
1500 { 1092 {
1501 /* write: check length and adjust. */ 1093 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1094 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1095 len = svlen - dataoffset;
1504 } 1096 }
1505 else 1097 else
1506 { 1098 {
1507 /* read: grow scalar as necessary */ 1099 /* read: check type and grow scalar as necessary */
1100 SvUPGRADE (data, SVt_PV);
1508 svptr = SvGROW (data, len + dataoffset + 1); 1101 svptr = SvGROW (data, len + dataoffset + 1);
1509 } 1102 }
1510 1103
1511 if (len < 0)
1512 croak ("length must not be negative");
1513
1514 { 1104 {
1515 dREQ; 1105 dREQ;
1516 1106
1517 req->type = ix; 1107 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1108 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1109 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1110 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1111 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1112 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1113 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1114 req->stroffset = dataoffset;
1526 1115
1527 if (!SvREADONLY (data)) 1116 if (!SvREADONLY (data))
1528 { 1117 {
1529 SvREADONLY_on (data); 1118 SvREADONLY_on (data);
… …
1534 } 1123 }
1535} 1124}
1536 1125
1537void 1126void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1127aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1128 ALIAS:
1129 aio_readlink = EIO_READLINK
1130 aio_realpath = EIO_REALPATH
1540 PPCODE: 1131 PPCODE:
1541{ 1132{
1542 SV *data; 1133 SV *data;
1543 dREQ; 1134 dREQ;
1544 1135
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1136 req->type = ix;
1549 req->sv1 = newSVsv (path); 1137 req->sv1 = newSVsv (path);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1); 1138 req->ptr1 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1139
1554 REQ_SEND; 1140 REQ_SEND;
1555} 1141}
1556 1142
1557void 1143void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1144aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1145 PPCODE:
1561{ 1146{
1147 int ifd = s_fileno_croak (in_fh , 0);
1148 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1149 dREQ;
1563 1150
1564 req->type = REQ_SENDFILE; 1151 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1152 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1153 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1154 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1155 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1156 req->offs = in_offset;
1570 req->size = length; 1157 req->size = length;
1571 1158
1572 REQ_SEND; 1159 REQ_SEND;
1573} 1160}
1574 1161
1575void 1162void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1163aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1164 PPCODE:
1579{ 1165{
1166 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1167 dREQ;
1581 1168
1582 req->type = REQ_READAHEAD; 1169 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1170 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1171 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1172 req->offs = offset;
1586 req->size = length; 1173 req->size = length;
1587 1174
1588 REQ_SEND; 1175 REQ_SEND;
1589} 1176}
1590 1177
1591void 1178void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1179aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1180 ALIAS:
1594 aio_stat = REQ_STAT 1181 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1182 aio_lstat = EIO_LSTAT
1183 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1184 PPCODE:
1597{ 1185{
1598 dREQ; 1186 dREQ;
1599 1187
1600 req->ptr2 = malloc (sizeof (Stat_t));
1601 if (!req->ptr2)
1602 {
1603 req_destroy (req);
1604 croak ("out of memory during aio_stat statdata allocation");
1605 }
1606
1607 req->flags |= FLAG_PTR2_FREE;
1608 req->sv1 = newSVsv (fh_or_path); 1188 req->sv1 = newSVsv (fh_or_path);
1609 1189
1610 if (SvPOK (fh_or_path)) 1190 if (SvPOK (req->sv1))
1611 { 1191 {
1612 req->type = ix; 1192 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1); 1193 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 } 1194 }
1615 else 1195 else
1616 { 1196 {
1617 req->type = REQ_FSTAT; 1197 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1198 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1619 } 1199 }
1620 1200
1621 REQ_SEND; 1201 REQ_SEND;
1622} 1202}
1203
1204UV
1205major (UV dev)
1206 ALIAS:
1207 minor = 1
1208 CODE:
1209 RETVAL = ix ? major (dev) : minor (dev);
1210 OUTPUT:
1211 RETVAL
1212
1213UV
1214makedev (UV maj, UV min)
1215 CODE:
1216 RETVAL = makedev (maj, min);
1217 OUTPUT:
1218 RETVAL
1623 1219
1624void 1220void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1221aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1222 PPCODE:
1627{ 1223{
… …
1629 1225
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1226 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1227 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1228 req->sv1 = newSVsv (fh_or_path);
1633 1229
1634 if (SvPOK (fh_or_path)) 1230 if (SvPOK (req->sv1))
1635 { 1231 {
1636 req->type = REQ_UTIME; 1232 req->type = EIO_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1); 1233 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 } 1234 }
1639 else 1235 else
1640 { 1236 {
1641 req->type = REQ_FUTIME; 1237 req->type = EIO_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1238 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 } 1239 }
1644 1240
1645 REQ_SEND; 1241 REQ_SEND;
1646} 1242}
… …
1652 dREQ; 1248 dREQ;
1653 1249
1654 req->sv1 = newSVsv (fh_or_path); 1250 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1251 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1252
1657 if (SvPOK (fh_or_path)) 1253 if (SvPOK (req->sv1))
1658 { 1254 {
1659 req->type = REQ_TRUNCATE; 1255 req->type = EIO_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1); 1256 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 } 1257 }
1662 else 1258 else
1663 { 1259 {
1664 req->type = REQ_FTRUNCATE; 1260 req->type = EIO_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1261 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 } 1262 }
1667 1263
1668 REQ_SEND; 1264 REQ_SEND;
1669} 1265}
1670 1266
1671void 1267void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1268aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1269 ALIAS:
1270 aio_chmod = EIO_CHMOD
1271 aio_mkdir = EIO_MKDIR
1673 PPCODE: 1272 PPCODE:
1674{ 1273{
1675 dREQ; 1274 dREQ;
1676 1275
1677 req->mode = mode; 1276 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1277 req->sv1 = newSVsv (fh_or_path);
1679 1278
1680 if (SvPOK (fh_or_path)) 1279 if (SvPOK (req->sv1))
1681 { 1280 {
1682 req->type = REQ_CHMOD; 1281 req->type = ix;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1); 1282 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 } 1283 }
1685 else 1284 else
1686 { 1285 {
1687 req->type = REQ_FCHMOD; 1286 req->type = EIO_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1287 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 } 1288 }
1690 1289
1691 REQ_SEND; 1290 REQ_SEND;
1692} 1291}
… …
1699 1298
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1299 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1300 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1301 req->sv1 = newSVsv (fh_or_path);
1703 1302
1704 if (SvPOK (fh_or_path)) 1303 if (SvPOK (req->sv1))
1705 { 1304 {
1706 req->type = REQ_CHOWN; 1305 req->type = EIO_CHOWN;
1707 req->ptr1 = SvPVbyte_nolen (req->sv1); 1306 req->ptr1 = SvPVbyte_nolen (req->sv1);
1708 } 1307 }
1709 else 1308 else
1710 { 1309 {
1711 req->type = REQ_FCHOWN; 1310 req->type = EIO_FCHOWN;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1311 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1713 } 1312 }
1714 1313
1715 REQ_SEND; 1314 REQ_SEND;
1716} 1315}
1717 1316
1718void 1317void
1318aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1319 PPCODE:
1320{
1321 dREQ;
1322
1323 req->type = EIO_READDIR;
1324 req->sv1 = newSVsv (pathname);
1325 req->ptr1 = SvPVbyte_nolen (req->sv1);
1326 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1327
1328 if (flags & EIO_READDIR_DENTS)
1329 req->int1 |= EIO_READDIR_CUSTOM2;
1330
1331 REQ_SEND;
1332}
1333
1334void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1335aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1336 ALIAS:
1721 aio_unlink = REQ_UNLINK 1337 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1338 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1339 aio_readdir = EIO_READDIR
1724 PPCODE: 1340 PPCODE:
1725{ 1341{
1726 dREQ; 1342 dREQ;
1727 1343
1728 req->type = ix; 1344 req->type = ix;
… …
1731 1347
1732 REQ_SEND; 1348 REQ_SEND;
1733} 1349}
1734 1350
1735void 1351void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745
1746 REQ_SEND;
1747}
1748
1749void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1352aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS: 1353 ALIAS:
1752 aio_link = REQ_LINK 1354 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1355 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1356 aio_rename = EIO_RENAME
1755 PPCODE: 1357 PPCODE:
1756{ 1358{
1757 dREQ; 1359 dREQ;
1758 1360
1759 req->type = ix; 1361 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1362 req->sv1 = newSVsv (oldpath);
1363 req->ptr1 = SvPVbyte_nolen (req->sv1);
1364 req->sv2 = newSVsv (newpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1365 req->ptr2 = SvPVbyte_nolen (req->sv2);
1762 req->sv1 = newSVsv (newpath);
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1366
1765 REQ_SEND; 1367 REQ_SEND;
1766} 1368}
1767 1369
1768void 1370void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1371aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1770 PPCODE: 1372 PPCODE:
1771{ 1373{
1772 dREQ; 1374 dREQ;
1773 1375
1774 req->type = REQ_MKNOD; 1376 req->type = EIO_MKNOD;
1775 req->sv1 = newSVsv (pathname); 1377 req->sv1 = newSVsv (pathname);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1); 1378 req->ptr1 = SvPVbyte_nolen (req->sv1);
1777 req->mode = (mode_t)mode; 1379 req->int2 = (mode_t)mode;
1778 req->offs = dev; 1380 req->offs = dev;
1779 1381
1780 REQ_SEND; 1382 REQ_SEND;
1781} 1383}
1782 1384
1783void 1385void
1386aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1387 ALIAS:
1388 aio_mtouch = EIO_MTOUCH
1389 aio_msync = EIO_MSYNC
1390 PPCODE:
1391{
1392 STRLEN svlen;
1393 char *svptr = SvPVbyte (data, svlen);
1394 UV len = SvUV (length);
1395
1396 if (offset < 0)
1397 offset += svlen;
1398
1399 if (offset < 0 || offset > svlen)
1400 croak ("offset outside of scalar");
1401
1402 if (!SvOK (length) || len + offset > svlen)
1403 len = svlen - offset;
1404
1405 {
1406 dREQ;
1407
1408 req->type = ix;
1409 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr2 = (char *)svptr + offset;
1411 req->size = len;
1412 req->int1 = flags;
1413
1414 REQ_SEND;
1415 }
1416}
1417
1418void
1419aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1420 PPCODE:
1421{
1422 STRLEN svlen;
1423 char *svptr = SvPVbyte (data, svlen);
1424 UV len = SvUV (length);
1425
1426 if (offset < 0)
1427 offset += svlen;
1428
1429 if (offset < 0 || offset > svlen)
1430 croak ("offset outside of scalar");
1431
1432 if (!SvOK (length) || len + offset > svlen)
1433 len = svlen - offset;
1434
1435 {
1436 dREQ;
1437
1438 req->type = EIO_MLOCK;
1439 req->sv2 = SvREFCNT_inc (data);
1440 req->ptr2 = (char *)svptr + offset;
1441 req->size = len;
1442
1443 REQ_SEND;
1444 }
1445}
1446
1447void
1448aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->type = EIO_MLOCKALL;
1454 req->int1 = flags;
1455
1456 REQ_SEND;
1457}
1458
1459void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1460aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1461 PPCODE:
1786{ 1462{
1787 dREQ; 1463 dREQ;
1788 1464
1789 req->type = REQ_BUSY; 1465 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1466 req->nv1 = delay < 0. ? 0. : delay;
1791 1467
1792 REQ_SEND; 1468 REQ_SEND;
1793} 1469}
1794 1470
1795void 1471void
1796aio_group (SV *callback=&PL_sv_undef) 1472aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1473 PPCODE:
1799{ 1474{
1800 dREQ; 1475 dREQ;
1801 1476
1802 req->type = REQ_GROUP; 1477 req->type = EIO_GROUP;
1803 1478
1804 req_send (req); 1479 req_submit (req);
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1480 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1481}
1807 1482
1808void 1483void
1809aio_nop (SV *callback=&PL_sv_undef) 1484aio_nop (SV *callback=&PL_sv_undef)
1485 ALIAS:
1486 aio_nop = EIO_NOP
1487 aio_sync = EIO_SYNC
1810 PPCODE: 1488 PPCODE:
1811{ 1489{
1812 dREQ; 1490 dREQ;
1813 1491
1814 req->type = REQ_NOP; 1492 req->type = ix;
1815 1493
1816 REQ_SEND; 1494 REQ_SEND;
1817} 1495}
1818 1496
1819int 1497int
1820aioreq_pri (int pri = 0) 1498aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1499 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1500 RETVAL = next_pri;
1824 if (items > 0) 1501 if (items > 0)
1825 { 1502 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1503 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1504 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1505 next_pri = pri;
1829 } 1506 }
1830 OUTPUT: 1507 OUTPUT:
1831 RETVAL 1508 RETVAL
1832 1509
1833void 1510void
1834aioreq_nice (int nice = 0) 1511aioreq_nice (int nice = 0)
1835 CODE: 1512 CODE:
1836 nice = next_pri - nice; 1513 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1514 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1515 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1516 next_pri = nice;
1840 1517
1841void 1518void
1842flush () 1519flush ()
1843 PROTOTYPE:
1844 CODE: 1520 CODE:
1845 while (nreqs) 1521 while (eio_nreqs ())
1846 { 1522 {
1847 poll_wait (); 1523 poll_wait ();
1848 poll_cb (); 1524 poll_cb ();
1849 } 1525 }
1850 1526
1851int 1527int
1852poll() 1528poll ()
1853 PROTOTYPE:
1854 CODE: 1529 CODE:
1855 poll_wait (); 1530 poll_wait ();
1856 RETVAL = poll_cb (); 1531 RETVAL = poll_cb ();
1857 OUTPUT: 1532 OUTPUT:
1858 RETVAL 1533 RETVAL
1859 1534
1860int 1535int
1861poll_fileno() 1536poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1537 CODE:
1864 RETVAL = respipe [0]; 1538 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1539 OUTPUT:
1866 RETVAL 1540 RETVAL
1867 1541
1868int 1542int
1869poll_cb(...) 1543poll_cb (...)
1870 PROTOTYPE: 1544 PROTOTYPE:
1871 CODE: 1545 CODE:
1872 RETVAL = poll_cb (); 1546 RETVAL = poll_cb ();
1873 OUTPUT: 1547 OUTPUT:
1874 RETVAL 1548 RETVAL
1875 1549
1876void 1550void
1877poll_wait() 1551poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1552 CODE:
1880 poll_wait (); 1553 poll_wait ();
1881 1554
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1555int
1920nreqs() 1556nreqs ()
1921 PROTOTYPE:
1922 CODE: 1557 CODE:
1923 RETVAL = nreqs; 1558 RETVAL = eio_nreqs ();
1924 OUTPUT: 1559 OUTPUT:
1925 RETVAL 1560 RETVAL
1926 1561
1927int 1562int
1928nready() 1563nready ()
1929 PROTOTYPE:
1930 CODE: 1564 CODE:
1931 RETVAL = get_nready (); 1565 RETVAL = eio_nready ();
1932 OUTPUT: 1566 OUTPUT:
1933 RETVAL 1567 RETVAL
1934 1568
1935int 1569int
1936npending() 1570npending ()
1937 PROTOTYPE:
1938 CODE: 1571 CODE:
1939 RETVAL = get_npending (); 1572 RETVAL = eio_npending ();
1940 OUTPUT: 1573 OUTPUT:
1941 RETVAL 1574 RETVAL
1942 1575
1943int 1576int
1944nthreads() 1577nthreads ()
1945 PROTOTYPE:
1946 CODE: 1578 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1579 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1580 OUTPUT:
1951 RETVAL 1581 RETVAL
1952 1582
1583int
1584fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1585 CODE:
1586 RETVAL = posix_fadvise (fh, offset, length, advice);
1587 OUTPUT:
1588 RETVAL
1589
1590ssize_t
1591sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1592 CODE:
1593 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1594 OUTPUT:
1595 RETVAL
1596
1597void
1598mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1599 PPCODE:
1600 sv_unmagic (scalar, MMAP_MAGIC);
1601{
1602 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1603 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1604 if (addr == (void *)-1)
1605 XSRETURN_NO;
1606
1607 sv_force_normal (scalar);
1608
1609 /* we store the length in mg_obj, as namlen is I32 :/ */
1610 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1611 ->mg_obj = (SV *)length;
1612
1613 SvUPGRADE (scalar, SVt_PV); /* nop... */
1614
1615 if (!(prot & PROT_WRITE))
1616 SvREADONLY_on (scalar);
1617
1618 if (SvLEN (scalar))
1619 Safefree (SvPVX (scalar));
1620
1621 SvPVX (scalar) = (char *)addr;
1622 SvCUR_set (scalar, length);
1623 SvLEN_set (scalar, 0);
1624 SvPOK_only (scalar);
1625
1626 XSRETURN_YES;
1627}
1628
1629void
1630munmap (SV *scalar)
1631 CODE:
1632 sv_unmagic (scalar, MMAP_MAGIC);
1633
1634int
1635madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1636 ALIAS:
1637 mprotect = 1
1638 CODE:
1639{
1640 STRLEN svlen;
1641 void *addr = SvPVbyte (scalar, svlen);
1642 size_t len = SvUV (length);
1643
1644 if (offset < 0)
1645 offset += svlen;
1646
1647 if (offset < 0 || offset > svlen)
1648 croak ("offset outside of scalar");
1649
1650 if (!SvOK (length) || len + offset > svlen)
1651 len = svlen - offset;
1652
1653 addr = (void *)(((intptr_t)addr) + offset);
1654 eio_page_align (&addr, &len);
1655
1656 switch (ix)
1657 {
1658 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1659 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1660 }
1661}
1662 OUTPUT:
1663 RETVAL
1664
1665int
1666munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1667 CODE:
1668{
1669 STRLEN svlen;
1670 void *addr = SvPVbyte (scalar, svlen);
1671 size_t len = SvUV (length);
1672
1673 if (offset < 0)
1674 offset += svlen;
1675
1676 if (offset < 0 || offset > svlen)
1677 croak ("offset outside of scalar");
1678
1679 if (!SvOK (length) || len + offset > svlen)
1680 len = svlen - offset;
1681
1682 addr = (void *)(((intptr_t)addr) + offset);
1683 eio_page_align (&addr, &len);
1684#if _POSIX_MEMLOCK_RANGE
1685 RETVAL = munlock (addr, len);
1686#else
1687 RETVAL = ((errno = ENOSYS), -1);
1688#endif
1689}
1690 OUTPUT:
1691 RETVAL
1692
1693int
1694munlockall ()
1695 CODE:
1696#if _POSIX_MEMLOCK
1697 munlockall ();
1698#else
1699 RETVAL = -1;
1700 errno = ENOSYS;
1701#endif
1702 OUTPUT:
1703 RETVAL
1704
1705void _on_next_submit (SV *cb)
1706 CODE:
1707 SvREFCNT_dec (on_next_submit);
1708 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1709
1953PROTOTYPES: DISABLE 1710PROTOTYPES: DISABLE
1954 1711
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1712MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1713
1957void 1714void
1958cancel (aio_req_ornot req) 1715cancel (aio_req_ornot req)
1959 CODE: 1716 CODE:
1960 req_cancel (req); 1717 eio_cancel (req);
1961 1718
1962void 1719void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1720cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1721 PPCODE:
1722{
1723 if (GIMME_V != G_VOID)
1724 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1725
1726 if (items > 1)
1727 {
1728 SV *cb_cv =get_cb (callback);
1729
1965 SvREFCNT_dec (req->callback); 1730 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1731 req->callback = SvREFCNT_inc (cb_cv);
1732 }
1733}
1967 1734
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1735MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1736
1970void 1737void
1971add (aio_req grp, ...) 1738add (aio_req grp, ...)
1972 PPCODE: 1739 PPCODE:
1973{ 1740{
1974 int i; 1741 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 1742
1980 if (grp->int1 == 2) 1743 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1744 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1745
1983 for (i = 1; i < items; ++i ) 1746 for (i = 1; i < items; ++i )
1984 { 1747 {
1748 aio_req req;
1749
1985 if (GIMME_V != G_VOID) 1750 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1751 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1752
1988 req = SvAIO_REQ (ST (i)); 1753 req = SvAIO_REQ (ST (i));
1989 1754
1990 if (req) 1755 if (req)
1991 { 1756 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 1757 }
2004} 1758}
2005 1759
2006void 1760void
2007cancel_subs (aio_req_ornot req) 1761cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1770 AV *av;
2017 1771
2018 grp->errorno = errno; 1772 grp->errorno = errno;
2019 1773
2020 av = newAV (); 1774 av = newAV ();
1775 av_extend (av, items - 1);
2021 1776
2022 for (i = 1; i < items; ++i ) 1777 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1778 av_push (av, newSVsv (ST (i)));
2024 1779
2025 SvREFCNT_dec (grp->sv1); 1780 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 1787 grp->errorno = errorno;
2033 1788
2034void 1789void
2035limit (aio_req grp, int limit) 1790limit (aio_req grp, int limit)
2036 CODE: 1791 CODE:
2037 grp->int2 = limit; 1792 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 1793
2040void 1794void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 1795feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 1796 CODE:
2043{ 1797{
2044 SvREFCNT_dec (grp->sv2); 1798 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 1799 grp->sv2 = newSVsv (callback);
1800 grp->feed = aio_grp_feed;
2046 1801
2047 if (grp->int2 <= 0) 1802 if (grp->int2 <= 0)
2048 grp->int2 = 2; 1803 grp->int2 = 2;
2049 1804
2050 aio_grp_feed (grp); 1805 eio_grp_limit (grp, grp->int2);
2051} 1806}
2052 1807

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