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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC vs.
Revision 1.194 by root, Fri Jul 29 08:35:36 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 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 36
22#undef malloc 37 #undef malloc
23#undef free 38 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 39 #undef open
27# undef read 40 #undef read
28# undef write 41 #undef write
29# undef send 42 #undef send
30# undef recv 43 #undef recv
31# undef stat 44 #undef stat
45 #undef lstat
32# undef fstat 46 #undef fstat
33# define lstat stat
34# undef truncate 47 #undef truncate
35# undef ftruncate 48 #undef ftruncate
36# undef open 49 #undef open
50 #undef link
37# undef close 51 #undef close
38# undef unlink 52 #undef unlink
53 #undef mkdir
39# undef rmdir 54 #undef rmdir
40# undef rename 55 #undef rename
41# undef lseek 56 #undef lseek
42 57 #undef opendir
43# define chown(a,b,c) (errno = ENOSYS, -1) 58 #undef readdir
44# define fchown(a,b,c) (errno = ENOSYS, -1) 59 #undef closedir
45# define fchmod(a,b) (errno = ENOSYS, -1) 60 #undef chmod
46# define symlink(a,b) (errno = ENOSYS, -1) 61 #undef fchmod
47# define readlink(a,b,c) (errno = ENOSYS, -1) 62 #undef dup
48# define mknod(a,b,c) (errno = ENOSYS, -1) 63 #undef dup2
49# define truncate(a,b) (errno = ENOSYS, -1) 64 #undef abort
50# define ftruncate(fd,o) chsize ((fd), (o)) 65 #undef pipe
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 66
57#else 67#else
58 68
59# include "autoconf/config.h"
60# include <sys/time.h> 69 #include <sys/time.h>
61# include <sys/select.h> 70 #include <sys/select.h>
62# include <unistd.h> 71 #include <unistd.h>
63# include <utime.h> 72 #include <utime.h>
64# include <signal.h> 73 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 74
67#endif
68
69#if HAVE_SENDFILE
70# if __linux
71# include <sys/sendfile.h>
72# elif __freebsd
73# include <sys/socket.h>
74# include <sys/uio.h>
75# elif __hpux
76# include <sys/socket.h>
77# elif __solaris /* not yet */
78# include <sys/sendfile.h>
79# else
80# error sendfile support requested but not available
81# endif 75#endif
82#endif
83 76
84/* number of seconds after which idle threads exit */ 77#define EIO_STRUCT_STAT Stat_t
85#define IDLE_TIMEOUT 10
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif
91
92/* buffer size for various temporary buffers */
93#define AIO_BUFSIZE 65536
94 78
95/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 80#if IVSIZE >= 8
81# define VAL64 IV
97# define SvVAL64 SvIV 82# define SvVAL64 SvIV
83# define newSVval64 newSViv
98#else 84#else
85# define VAL64 NV
99# define SvVAL64 SvNV 86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
100#endif 88#endif
101 89
102#define dBUF \ 90/*****************************************************************************/
103 char *aio_buf; \ 91
104 X_LOCK (wrklock); \ 92#if __GNUC__ >= 3
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 93# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_UNLOCK (wrklock); \ 94#else
107 if (!aio_buf) \ 95# define expect(expr,value) (expr)
108 return -1; 96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
109 102
110typedef SV SV8; /* byte-sv, used for argument-checking */ 103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 STRLEN stroffset; \
113 SV *self;
114
115#define EIO_NO_WRAPPERS 1
116
117#include "libeio/config.h"
118#include "libeio/eio.h"
119
120static int req_invoke (eio_req *req);
121#define EIO_FINISH(req) req_invoke (req)
122static void req_destroy (eio_req *grp);
123#define EIO_DESTROY(req) req_destroy (req)
124
125#include "libeio/eio.c"
126
127/* Linux/others */
128#ifndef O_ASYNC
129# define O_ASYNC 0
130#endif
131#ifndef O_DIRECT
132# define O_DIRECT 0
133#endif
134#ifndef O_NOATIME
135# define O_NOATIME 0
136#endif
137
138/* POSIX */
139#ifndef O_CLOEXEC
140# define O_CLOEXEC 0
141#endif
142#ifndef O_NOFOLLOW
143# define O_NOFOLLOW 0
144#endif
145#ifndef O_NOCTTY
146# define O_NOCTTY 0
147#endif
148#ifndef O_NONBLOCK
149# define O_NONBLOCK 0
150#endif
151#ifndef O_EXEC
152# define O_EXEC 0
153#endif
154#ifndef O_SEARCH
155# define O_SEARCH 0
156#endif
157#ifndef O_DIRECTORY
158# define O_DIRECTORY 0
159#endif
160#ifndef O_DSYNC
161# define O_DSYNC 0
162#endif
163#ifndef O_RSYNC
164# define O_RSYNC 0
165#endif
166#ifndef O_SYNC
167# define O_SYNC 0
168#endif
169#ifndef O_TTY_INIT
170# define O_TTY_INIT 0
171#endif
172
173#ifndef POSIX_FADV_NORMAL
174# define POSIX_FADV_NORMAL 0
175#endif
176#ifndef POSIX_FADV_SEQUENTIAL
177# define POSIX_FADV_SEQUENTIAL 0
178#endif
179#ifndef POSIX_FADV_RANDOM
180# define POSIX_FADV_RANDOM 0
181#endif
182#ifndef POSIX_FADV_NOREUSE
183# define POSIX_FADV_NOREUSE 0
184#endif
185#ifndef POSIX_FADV_WILLNEED
186# define POSIX_FADV_WILLNEED 0
187#endif
188#ifndef POSIX_FADV_DONTNEED
189# define POSIX_FADV_DONTNEED 0
190#endif
191
192#if !HAVE_POSIX_FADVISE
193# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
194#endif
195
196#ifndef POSIX_MADV_NORMAL
197# define POSIX_MADV_NORMAL 0
198#endif
199#ifndef POSIX_MADV_SEQUENTIAL
200# define POSIX_MADV_SEQUENTIAL 0
201#endif
202#ifndef POSIX_MADV_RANDOM
203# define POSIX_MADV_RANDOM 0
204#endif
205#ifndef POSIX_MADV_WILLNEED
206# define POSIX_MADV_WILLNEED 0
207#endif
208#ifndef POSIX_MADV_DONTNEED
209# define POSIX_MADV_DONTNEED 0
210#endif
211
212#if !HAVE_POSIX_MADVISE
213# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
214#endif
215
216#ifndef PROT_NONE
217# define PROT_NONE 0
218#endif
219#ifndef PROT_READ
220# define PROT_READ 0
221#endif
222#ifndef PROT_WRITE
223# define PROT_READ 0
224#endif
225#ifndef PROT_EXEC
226# define PROT_EXEC 0
227#endif
228
229#ifndef ST_RDONLY
230# define ST_RDONLY 0
231#endif
232#ifndef ST_NOSUID
233# define ST_NOSUID 0
234#endif
235#ifndef ST_NODEV
236# define ST_NODEV 0
237#endif
238#ifndef ST_NOEXEC
239# define ST_NOEXEC 0
240#endif
241#ifndef ST_SYNCHRONOUS
242# define ST_SYNCHRONOUS 0
243#endif
244#ifndef ST_MANDLOCK
245# define ST_MANDLOCK 0
246#endif
247#ifndef ST_WRITE
248# define ST_WRITE 0
249#endif
250#ifndef ST_APPEND
251# define ST_APPEND 0
252#endif
253#ifndef ST_IMMUTABLE
254# define ST_IMMUTABLE 0
255#endif
256#ifndef ST_NOATIME
257# define ST_NOATIME 0
258#endif
259#ifndef ST_NODIRATIME
260# define ST_NODIRATIME 0
261#endif
262#ifndef ST_RELATIME
263# define ST_RELATIME 0
264#endif
265
266#ifndef S_IFIFO
267# define S_IFIFO 0
268#endif
269#ifndef S_IFCHR
270# define S_IFCHR 0
271#endif
272#ifndef S_IFBLK
273# define S_IFBLK 0
274#endif
275#ifndef S_IFLNK
276# define S_IFLNK 0
277#endif
278#ifndef S_IFREG
279# define S_IFREG 0
280#endif
281#ifndef S_IFDIR
282# define S_IFDIR 0
283#endif
284#ifndef S_IFWHT
285# define S_IFWHT 0
286#endif
287#ifndef S_IFSOCK
288# define S_IFSOCK 0
289#endif
290
291#ifndef MAP_ANONYMOUS
292# ifdef MAP_ANON
293# define MAP_ANONYMOUS MAP_ANON
294# else
295# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
296# endif
297#endif
298#ifndef MAP_HUGETLB
299# define MAP_HUGETLB 0
300#endif
301#ifndef MAP_LOCKED
302# define MAP_LOCKED 0
303#endif
304#ifndef MAP_NORESERVE
305# define MAP_NORESERVE 0
306#endif
307#ifndef MAP_POPULATE
308# define MAP_POPULATE 0
309#endif
310#ifndef MAP_NONBLOCK
311# define MAP_NONBLOCK 0
312#endif
313
314#ifndef makedev
315# define makedev(maj,min) (((maj) << 8) | (min))
316#endif
317#ifndef major
318# define major(dev) ((dev) >> 8)
319#endif
320#ifndef minor
321# define minor(dev) ((dev) & 0xff)
322#endif
323
324#ifndef PAGESIZE
325# define PAGESIZE sysconf (_SC_PAGESIZE)
326#endif
111 327
112enum { 328enum {
113 REQ_QUIT, 329 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 330};
129 331
130#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132
133typedef struct aio_cb
134{
135 struct aio_cb *volatile next;
136
137 SV *callback;
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150
151 unsigned char flags;
152 unsigned char pri;
153
154 SV *self; /* the perl counterpart of this request, if any */
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
156} aio_cb;
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req; 332typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 333typedef eio_req *aio_req_ornot;
166 334
167enum { 335static SV *on_next_submit;
168 PRI_MIN = -4, 336static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 337static int max_outstanding;
170 338
171 DEFAULT_PRI = 0, 339static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 340
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 341static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 342static void req_cancel (aio_req req);
376 343
344static void want_poll (void)
345{
346 /* write a dummy byte to the pipe so fh becomes ready */
347 s_epipe_signal (&respipe);
348}
349
350static void done_poll (void)
351{
352 /* read any signals sent by the worker threads */
353 s_epipe_drain (&respipe);
354}
355
377/* must be called at most once */ 356/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 357static SV *req_sv (aio_req req, HV *stash)
379{ 358{
380 if (!req->self) 359 if (!req->self)
381 { 360 {
382 req->self = (SV *)newHV (); 361 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 362 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 363 }
385 364
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 365 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 366}
388 367
389static aio_req SvAIO_REQ (SV *sv) 368static aio_req SvAIO_REQ (SV *sv)
390{ 369{
391 MAGIC *mg; 370 MAGIC *mg;
392 371
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 372 if (!SvROK (sv)
373 || (SvSTASH (SvRV (sv)) != aio_grp_stash
374 && SvSTASH (SvRV (sv)) != aio_req_stash
375 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 376 croak ("object of class IO::AIO::REQ expected");
395 377
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 378 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 379
398 return mg ? (aio_req)mg->mg_ptr : 0; 380 return mg ? (aio_req)mg->mg_ptr : 0;
399} 381}
400 382
401static void aio_grp_feed (aio_req grp) 383static void aio_grp_feed (aio_req grp)
402{ 384{
403 block_sig (); 385 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 386 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 387 dSP;
412 388
413 ENTER; 389 ENTER;
414 SAVETMPS; 390 SAVETMPS;
415 PUSHMARK (SP); 391 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 392 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 393 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 394 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 395 SPAGAIN;
420 FREETMPS; 396 FREETMPS;
421 LEAVE; 397 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 398 }
432
433 unblock_sig ();
434} 399}
435 400
436static void aio_grp_dec (aio_req grp) 401static void req_submit (eio_req *req)
437{ 402{
438 --grp->size; 403 eio_submit (req);
439 404
440 /* call feeder, if applicable */ 405 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 406 {
446 block_sig (); 407 dSP;
408 SV *cb = sv_2mortal (on_next_submit);
447 409
448 if (!req_invoke (grp)) 410 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 411
455 req_destroy (grp); 412 PUSHMARK (SP);
456 unblock_sig (); 413 PUTBACK;
414 call_sv (cb, G_DISCARD | G_EVAL);
457 } 415 }
458} 416}
459 417
460static int req_invoke (aio_req req) 418static int req_invoke (eio_req *req)
461{ 419{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 421 SvREADONLY_off (req->sv2);
466 422
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 423 if (!EIO_CANCELLED (req) && req->callback)
468 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
469 ENTER; 429 ENTER;
470 SAVETMPS; 430 SAVETMPS;
471 PUSHMARK (SP); 431 PUSHMARK (SP);
472 EXTEND (SP, 1); 432 EXTEND (SP, 1);
473 433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
441 else
442 {
443 sv_result = newSViv (req->result);
444 SvREADONLY_on (sv_result);
445 }
446
474 switch (req->type) 447 switch (req->type)
475 { 448 {
476 case REQ_READDIR: 449 case EIO_READDIR:
477 { 450 {
478 SV *rv = &PL_sv_undef; 451 SV *rv = &PL_sv_undef;
479 452
480 if (req->result >= 0) 453 if (req->result >= 0)
481 { 454 {
482 int i; 455 int i;
483 char *buf = req->ptr2; 456 char *names = (char *)req->ptr2;
457 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 458 AV *av = newAV ();
485 459
486 av_extend (av, req->result - 1); 460 av_extend (av, req->result - 1);
487 461
488 for (i = 0; i < req->result; ++i) 462 for (i = 0; i < req->result; ++i)
489 { 463 {
490 SV *sv = newSVpv (buf, 0); 464 if (req->int1 & EIO_READDIR_DENTS)
465 {
466 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 467
468 if (req->int1 & EIO_READDIR_CUSTOM2)
469 {
470 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
471 AV *avent = newAV ();
472
473 av_extend (avent, 2);
474
475 if (!sv_type [ent->type])
476 {
477 sv_type [ent->type] = newSViv (ent->type);
478 SvREADONLY_on (sv_type [ent->type]);
479 }
480
481 av_store (avent, 0, namesv);
482 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
483 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
484
485 av_store (av, i, newRV_noinc ((SV *)avent));
486 }
487 else
492 av_store (av, i, sv); 488 av_store (av, i, namesv);
489
490 ++ent;
491 }
492 else
493 {
494 SV *name = newSVpv (names, 0);
495 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 496 names += SvCUR (name) + 1;
497 }
494 } 498 }
495 499
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 500 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 501 }
498 502
499 PUSHs (rv); 503 PUSHs (rv);
504
505 if (req->int1 & EIO_READDIR_CUSTOM1)
506 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 507 }
501 break; 508 break;
502 509
503 case REQ_OPEN: 510 case EIO_OPEN:
504 { 511 {
505 /* convert fd to fh */ 512 /* convert fd to fh */
506 SV *fh; 513 SV *fh = &PL_sv_undef;
507 514
508 PUSHs (sv_2mortal (newSViv (req->result))); 515 if (req->result >= 0)
509 PUTBACK; 516 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 517 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 518 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519 char sym [64];
520 int symlen;
521
522 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523 gv_init (gv, aio_stash, sym, symlen, 0);
512 524
513 fh = POPs; 525 symlen = snprintf (
514 PUSHMARK (SP); 526 sym,
527 sizeof (sym),
528 "%s&=%d",
529 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530 (int)req->result
531 );
532
533 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534 fh = (SV *)gv;
535 }
536
515 XPUSHs (fh); 537 PUSHs (fh);
516 } 538 }
517 break; 539 break;
518 540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546#ifndef _WIN32
547 if (req->result >= 0)
548 {
549 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
550 HV *hv = newHV ();
551
552 rv = sv_2mortal (newRV_noinc ((SV *)hv));
553
554 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
555 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
556 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
557 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
558 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
559 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
560 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
561 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
562 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
563 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
564 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
565 }
566#endif
567
568 PUSHs (rv);
569 }
570
571 break;
572
519 case REQ_GROUP: 573 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 574 req->int1 = 2; /* mark group as finished */
521 575
522 if (req->sv1) 576 if (req->sv1)
523 { 577 {
524 int i; 578 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 582 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 583 PUSHs (*av_fetch (av, i, 0));
530 } 584 }
531 break; 585 break;
532 586
533 case REQ_NOP: 587 case EIO_NOP:
534 case REQ_BUSY: 588 case EIO_BUSY:
535 break; 589 break;
536 590
537 case REQ_READLINK: 591 case EIO_READLINK:
592 case EIO_REALPATH:
538 if (req->result > 0) 593 if (req->result > 0)
539 { 594 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
540 SvCUR_set (req->sv2, req->result);
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2);
543 }
544 break; 595 break;
545 596
546 case REQ_STAT: 597 case EIO_STAT:
547 case REQ_LSTAT: 598 case EIO_LSTAT:
548 case REQ_FSTAT: 599 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 600 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
550 PL_laststatval = req->result; 601 PL_laststatval = req->result;
602 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
551 PL_statcache = *(Stat_t *)(req->ptr2); 603 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 604 PUSHs (sv_result);
553 break; 605 break;
554 606
555 case REQ_READ: 607 case EIO_READ:
608 {
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 609 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 610 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 611 SvPOK_only (req->sv2);
612 SvSETMAGIC (req->sv2);
613 PUSHs (sv_result);
614 }
559 break; 615 break;
560 616
617 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
618 if (req->result > 0)
619 SvIV_set (sv_result, 0);
620 /* FALLTHROUGH */
621
561 default: 622 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 623 PUSHs (sv_result);
563 break; 624 break;
564 } 625 }
565 626
566 errno = req->errorno; 627 errno = req->errorno;
567 628
568 PUTBACK; 629 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 630 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 631 SPAGAIN;
632
633 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
634 SvREFCNT_dec (sv_result);
635 else
636 sv_result_cache = sv_result;
571 637
572 FREETMPS; 638 FREETMPS;
573 LEAVE; 639 LEAVE;
640
641 PUTBACK;
574 } 642 }
575 643
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 644 return !!SvTRUE (ERRSV);
591} 645}
592 646
593static void req_destroy (aio_req req) 647static void req_destroy (aio_req req)
594{ 648{
595 if (req->self) 649 if (req->self)
… …
600 654
601 SvREFCNT_dec (req->sv1); 655 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 656 SvREFCNT_dec (req->sv2);
603 SvREFCNT_dec (req->callback); 657 SvREFCNT_dec (req->callback);
604 658
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 659 Safefree (req);
609} 660}
610 661
611static void req_cancel_subs (aio_req grp) 662static void req_cancel_subs (aio_req grp)
612{ 663{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 664 if (grp->type != EIO_GROUP)
616 return; 665 return;
617 666
618 SvREFCNT_dec (grp->sv2); 667 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 668 grp->sv2 = 0;
620 669
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 670 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 671}
624 672
625static void req_cancel (aio_req req) 673static void create_respipe (void)
626{ 674{
627 req->flags |= FLAG_CANCELLED; 675 if (s_epipe_renew (&respipe))
628
629 req_cancel_subs (req);
630}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637
638static void
639create_pipe (int fd[2])
640{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe"); 676 croak ("IO::AIO: unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655} 677}
656 678
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait () 679static void poll_wait (void)
753{ 680{
754 fd_set rfd;
755
756 while (nreqs) 681 while (eio_nreqs ())
757 { 682 {
758 int size; 683 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 684
685 X_LOCK (reslock);
760 size = res_queue.size; 686 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 687 X_UNLOCK (reslock);
762 688
763 if (size) 689 if (size)
764 return; 690 return;
765 691
766 maybe_start_thread (); 692 etp_maybe_start_thread ();
767 693
768 FD_ZERO (&rfd); 694 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 695 }
773} 696}
774 697
775static int poll_cb () 698static int poll_cb (void)
776{ 699{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 700 for (;;)
790 { 701 {
791 for (;;) 702 int res = eio_poll ();
792 {
793 maybe_start_thread ();
794 703
795 X_LOCK (reslock); 704 if (res > 0)
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 {
800 --npending;
801
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 }
823 else
824 {
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0); 705 croak (0);
830 }
831 706
832 count++; 707 if (!max_outstanding || max_outstanding > eio_nreqs ())
833 } 708 return res;
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 }
848
849 if (nreqs <= max_outstanding)
850 break;
851 709
852 poll_wait (); 710 poll_wait ();
853
854 ++maxreqs;
855 } 711 }
712}
856 713
857 unblock_sig (); 714static void ecb_cold
858 return count; 715reinit (void)
716{
717 create_respipe ();
718
719 if (eio_init (want_poll, done_poll) < 0)
720 croak ("IO::AIO: unable to initialise eio library");
859} 721}
860 722
861/*****************************************************************************/ 723/*****************************************************************************/
862/* work around various missing functions */
863 724
864#if !HAVE_PREADWRITE 725#if !_POSIX_MAPPED_FILES
865# define pread aio_pread 726# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
866# define pwrite aio_pwrite 727# define munmap(addr,length) (errno = ENOSYS, -1)
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{
877 ssize_t res;
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888}
889
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
891{
892 ssize_t res;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif 728#endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041 729
1042 if (res < 0 730#if !_POSIX_MEMORY_PROTECTION
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 731# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1044#if __solaris 732# define PROT_NONE 0
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 733# define PROT_WRITE 0
734# define MAP_PRIVATE 0
735# define MAP_SHARED 0
736# define MAP_FIXED 0
1046#endif 737#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052 738
1053 res = 0; 739#define MMAP_MAGIC PERL_MAGIC_ext
1054 740
1055 while (count) 741static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1056 { 742{
1057 ssize_t cnt; 743 int old_errno = errno;
1058 744 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 745 errno = old_errno;
1060 746
1061 if (cnt <= 0) 747 mg->mg_obj = 0; /* just in case */
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066 748
1067 cnt = write (ofd, aio_buf, cnt); 749 SvREADONLY_off (sv);
1068 750
1069 if (cnt <= 0) 751 if (SvPVX (sv) != mg->mg_ptr)
1070 { 752 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074 753
1075 offset += cnt; 754 SvCUR_set (sv, 0);
1076 res += cnt; 755 SvPVX (sv) = 0;
1077 count -= cnt; 756 SvOK_off (sv);
1078 }
1079 }
1080 757
1081 return res; 758 return 0;
1082} 759}
1083 760
1084/* read a full directory */ 761static MGVTBL mmap_vtbl = {
1085static void scandir_ (aio_req req, worker *self) 762 0, 0, 0, 0, mmap_free
1086{ 763};
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144 764
1145/*****************************************************************************/ 765/*****************************************************************************/
1146 766
1147X_THREAD_PROC (aio_proc) 767static SV * get_cb (SV *cb_sv)
1148{ 768{
1149 {//D 769 SvGETMAGIC (cb_sv);
1150 aio_req req; 770 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 PerlSock_closesocket (respipe [0]);
1376 PerlSock_closesocket (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381} 771}
1382 772
1383#define dREQ \ 773#define dREQ \
774 SV *cb_cv; \
1384 aio_req req; \ 775 aio_req req; \
1385 int req_pri = next_pri; \ 776 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \ 777 next_pri = EIO_PRI_DEFAULT; \
1387 \ 778 \
1388 if (SvOK (callback) && !SvROK (callback)) \ 779 cb_cv = get_cb (callback); \
1389 croak ("callback must be undef or of reference type"); \
1390 \ 780 \
1391 Newz (0, req, 1, aio_cb); \ 781 Newz (0, req, 1, eio_req); \
1392 if (!req) \ 782 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \ 783 croak ("out of memory during eio_req allocation"); \
1394 \ 784 \
1395 req->callback = newSVsv (callback); \ 785 req->callback = SvREFCNT_inc (cb_cv); \
1396 req->pri = req_pri 786 req->pri = req_pri
1397 787
1398#define REQ_SEND \ 788#define REQ_SEND \
789 PUTBACK; \
1399 req_send (req); \ 790 req_submit (req); \
791 SPAGAIN; \
1400 \ 792 \
1401 if (GIMME_V != G_VOID) \ 793 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 794 XPUSHs (req_sv (req, aio_req_stash));
1403 795
1404MODULE = IO::AIO PACKAGE = IO::AIO 796MODULE = IO::AIO PACKAGE = IO::AIO
1405 797
1406PROTOTYPES: ENABLE 798PROTOTYPES: ENABLE
1407 799
1408BOOT: 800BOOT:
1409{ 801{
802 static const struct {
803 const char *name;
804 IV iv;
805 } *civ, const_iv[] = {
806# define const_niv(name, value) { # name, (IV) value },
807# define const_iv(name) { # name, (IV) name },
808# define const_eio(name) { # name, (IV) EIO_ ## name },
809 const_iv (EXDEV)
810 const_iv (ENOSYS)
811 const_iv (O_RDONLY)
812 const_iv (O_WRONLY)
813 const_iv (O_RDWR)
814 const_iv (O_CREAT)
815 const_iv (O_TRUNC)
816 const_iv (O_EXCL)
817 const_iv (O_APPEND)
818
819 const_iv (O_ASYNC)
820 const_iv (O_DIRECT)
821 const_iv (O_NOATIME)
822
823 const_iv (O_CLOEXEC)
824 const_iv (O_NOCTTY)
825 const_iv (O_NOFOLLOW)
826 const_iv (O_NONBLOCK)
827 const_iv (O_EXEC)
828 const_iv (O_SEARCH)
829 const_iv (O_DIRECTORY)
830 const_iv (O_DSYNC)
831 const_iv (O_RSYNC)
832 const_iv (O_SYNC)
833 const_iv (O_TTY_INIT)
834
835 const_iv (S_IFIFO)
836 const_iv (S_IFCHR)
837 const_iv (S_IFBLK)
838 const_iv (S_IFLNK)
839 const_iv (S_IFREG)
840 const_iv (S_IFDIR)
841 const_iv (S_IFWHT)
842 const_iv (S_IFSOCK)
843 const_iv (S_IFMT)
844
845 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
846 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
847 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
848 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
849 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
850 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
851
852 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
853 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
854 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
855 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
856 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
857
858 const_iv (ST_RDONLY)
859 const_iv (ST_NOSUID)
860 const_iv (ST_NODEV)
861 const_iv (ST_NOEXEC)
862 const_iv (ST_SYNCHRONOUS)
863 const_iv (ST_MANDLOCK)
864 const_iv (ST_WRITE)
865 const_iv (ST_APPEND)
866 const_iv (ST_IMMUTABLE)
867 const_iv (ST_NOATIME)
868 const_iv (ST_NODIRATIME)
869 const_iv (ST_RELATIME)
870
871 const_iv (PROT_NONE)
872 const_iv (PROT_EXEC)
873 const_iv (PROT_READ)
874 const_iv (PROT_WRITE)
875
876 /*const_iv (MAP_FIXED)*/
877 const_iv (MAP_PRIVATE)
878 const_iv (MAP_SHARED)
879 const_iv (MAP_ANONYMOUS)
880
881 /* linuxish */
882 const_iv (MAP_HUGETLB)
883 const_iv (MAP_LOCKED)
884 const_iv (MAP_NORESERVE)
885 const_iv (MAP_POPULATE)
886 const_iv (MAP_NONBLOCK)
887
888 const_eio (MCL_FUTURE)
889 const_eio (MCL_CURRENT)
890
891 const_eio (MS_ASYNC)
892 const_eio (MS_INVALIDATE)
893 const_eio (MS_SYNC)
894
895 const_eio (MT_MODIFY)
896
897 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
898 const_eio (SYNC_FILE_RANGE_WRITE)
899 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
900
901 const_eio (FALLOC_FL_KEEP_SIZE)
902
903 const_eio (READDIR_DENTS)
904 const_eio (READDIR_DIRS_FIRST)
905 const_eio (READDIR_STAT_ORDER)
906 const_eio (READDIR_FOUND_UNKNOWN)
907
908 const_eio (DT_UNKNOWN)
909 const_eio (DT_FIFO)
910 const_eio (DT_CHR)
911 const_eio (DT_DIR)
912 const_eio (DT_BLK)
913 const_eio (DT_REG)
914 const_eio (DT_LNK)
915 const_eio (DT_SOCK)
916 const_eio (DT_WHT)
917 };
918
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 919 aio_stash = gv_stashpv ("IO::AIO" , 1);
920 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
921 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1411 922
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 923 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 924 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 925
1425 X_COND_CHECK (reqwait); 926 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 927
1431 create_pipe (respipe); 928 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 929}
1435 930
1436void 931void
932reinit ()
933 PROTOTYPE:
934
935void
1437max_poll_reqs (int nreqs) 936max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 937 PROTOTYPE: $
1439 CODE: 938 CODE:
1440 max_poll_reqs = nreqs; 939 eio_set_max_poll_reqs (nreqs);
1441 940
1442void 941void
1443max_poll_time (double nseconds) 942max_poll_time (double nseconds)
1444 PROTOTYPE: $ 943 PROTOTYPE: $
1445 CODE: 944 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 945 eio_set_max_poll_time (nseconds);
1447 946
1448void 947void
1449min_parallel (int nthreads) 948min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 949 PROTOTYPE: $
1459 CODE: 950 CODE:
1460 set_max_idle (nthreads); 951 eio_set_min_parallel (nthreads);
1461 952
1462int 953void
1463max_outstanding (int maxreqs) 954max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 955 PROTOTYPE: $
1465 CODE: 956 CODE:
1466 RETVAL = max_outstanding; 957 eio_set_max_parallel (nthreads);
958
959void
960max_idle (unsigned int nthreads)
961 PROTOTYPE: $
962 CODE:
963 eio_set_max_idle (nthreads);
964
965void
966idle_timeout (unsigned int seconds)
967 PROTOTYPE: $
968 CODE:
969 eio_set_idle_timeout (seconds);
970
971void
972max_outstanding (unsigned int maxreqs)
973 PROTOTYPE: $
974 CODE:
1467 max_outstanding = maxreqs; 975 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 976
1471void 977void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 978aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 979 PPCODE:
1475{ 980{
1476 dREQ; 981 dREQ;
1477 982
1478 req->type = REQ_OPEN; 983 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 984 req->sv1 = newSVsv (pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1); 985 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 986 req->int1 = flags;
1482 req->mode = mode; 987 req->int2 = mode;
1483 988
1484 REQ_SEND; 989 REQ_SEND;
1485} 990}
1486 991
1487void 992void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 993aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 994 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 995 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 996 aio_fdatasync = EIO_FDATASYNC
997 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 998 PPCODE:
1495{ 999{
1000 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1001 dREQ;
1497 1002
1498 req->type = ix; 1003 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1004 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1005 req->int1 = fd;
1006
1007 REQ_SEND (req);
1008}
1009
1010void
1011aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1012 PPCODE:
1013{
1014 int fd = s_fileno_croak (fh, 0);
1015 dREQ;
1016
1017 req->type = EIO_SYNC_FILE_RANGE;
1018 req->sv1 = newSVsv (fh);
1019 req->int1 = fd;
1020 req->offs = offset;
1021 req->size = nbytes;
1022 req->int2 = flags;
1023
1024 REQ_SEND (req);
1025}
1026
1027void
1028aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1029 PPCODE:
1030{
1031 int fd = s_fileno_croak (fh, 0);
1032 dREQ;
1033
1034 req->type = EIO_FALLOCATE;
1035 req->sv1 = newSVsv (fh);
1036 req->int1 = fd;
1037 req->int2 = mode;
1038 req->offs = offset;
1039 req->size = len;
1040
1041 REQ_SEND (req);
1042}
1043
1044void
1045aio_close (SV *fh, SV *callback=&PL_sv_undef)
1046 PPCODE:
1047{
1048 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1049 int fd = s_fileno_croak (fh, 0);
1050 dREQ;
1051
1052 if (expect_false (close_fd < 0))
1053 {
1054 int pipefd [2];
1055
1056 if (
1057#ifdef _WIN32
1058 _pipe (pipefd, 1, _O_BINARY) < 0
1059#else
1060 pipe (pipefd) < 0
1061 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1062#endif
1063 || close (pipefd [1]) < 0
1064 )
1065 abort (); /*D*/
1066
1067 close_fd = pipefd [0];
1068 }
1069
1070 req->type = EIO_DUP2;
1071 req->int1 = close_fd;
1072 req->sv2 = newSVsv (fh);
1073 req->int2 = fd;
1501 1074
1502 REQ_SEND (req); 1075 REQ_SEND (req);
1503} 1076}
1504 1077
1505void 1078void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1079aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1080 ALIAS:
1508 aio_read = REQ_READ 1081 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1082 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1083 PPCODE:
1512{ 1084{
1513 STRLEN svlen; 1085 STRLEN svlen;
1086 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1087 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1088 UV len = SvUV (length);
1516 1089
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1090 if (dataoffset < 0)
1521 dataoffset += svlen; 1091 dataoffset += svlen;
1522 1092
1523 if (dataoffset < 0 || dataoffset > svlen) 1093 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1094 croak ("dataoffset outside of data scalar");
1525 1095
1526 if (ix == REQ_WRITE) 1096 if (ix == EIO_WRITE)
1527 { 1097 {
1528 /* write: check length and adjust. */ 1098 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1099 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1100 len = svlen - dataoffset;
1531 } 1101 }
1532 else 1102 else
1533 { 1103 {
1534 /* read: grow scalar as necessary */ 1104 /* read: check type and grow scalar as necessary */
1105 SvUPGRADE (data, SVt_PV);
1535 svptr = SvGROW (data, len + dataoffset + 1); 1106 svptr = SvGROW (data, len + dataoffset + 1);
1536 } 1107 }
1537 1108
1538 if (len < 0)
1539 croak ("length must not be negative");
1540
1541 { 1109 {
1542 dREQ; 1110 dREQ;
1543 1111
1544 req->type = ix; 1112 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1113 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1114 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1115 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1116 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1117 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1118 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1119 req->stroffset = dataoffset;
1553 1120
1554 if (!SvREADONLY (data)) 1121 if (!SvREADONLY (data))
1555 { 1122 {
1556 SvREADONLY_on (data); 1123 SvREADONLY_on (data);
… …
1561 } 1128 }
1562} 1129}
1563 1130
1564void 1131void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1132aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1133 ALIAS:
1134 aio_readlink = EIO_READLINK
1135 aio_realpath = EIO_REALPATH
1567 PPCODE: 1136 PPCODE:
1568{ 1137{
1569 SV *data;
1570 dREQ; 1138 dREQ;
1571 1139
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1140 req->type = ix;
1576 req->sv1 = newSVsv (path); 1141 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1); 1142 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1143
1581 REQ_SEND; 1144 REQ_SEND;
1582} 1145}
1583 1146
1584void 1147void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1148aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1149 PPCODE:
1588{ 1150{
1151 int ifd = s_fileno_croak (in_fh , 0);
1152 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1153 dREQ;
1590 1154
1591 req->type = REQ_SENDFILE; 1155 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1156 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1157 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1158 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1159 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1160 req->offs = in_offset;
1597 req->size = length; 1161 req->size = length;
1598 1162
1599 REQ_SEND; 1163 REQ_SEND;
1600} 1164}
1601 1165
1602void 1166void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1167aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1168 PPCODE:
1606{ 1169{
1170 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1171 dREQ;
1608 1172
1609 req->type = REQ_READAHEAD; 1173 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1174 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1175 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1176 req->offs = offset;
1613 req->size = length; 1177 req->size = length;
1614 1178
1615 REQ_SEND; 1179 REQ_SEND;
1616} 1180}
1617 1181
1618void 1182void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1183aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1184 ALIAS:
1621 aio_stat = REQ_STAT 1185 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1186 aio_lstat = EIO_LSTAT
1187 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1188 PPCODE:
1624{ 1189{
1625 dREQ; 1190 dREQ;
1626 1191
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path); 1192 req->sv1 = newSVsv (fh_or_path);
1636 1193
1637 if (SvPOK (fh_or_path)) 1194 if (SvPOK (req->sv1))
1638 { 1195 {
1639 req->type = ix; 1196 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1); 1197 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1198 }
1642 else 1199 else
1643 { 1200 {
1644 req->type = REQ_FSTAT; 1201 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1202 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 } 1203 }
1647 1204
1648 REQ_SEND; 1205 REQ_SEND;
1649} 1206}
1207
1208UV
1209major (UV dev)
1210 ALIAS:
1211 minor = 1
1212 CODE:
1213 RETVAL = ix ? major (dev) : minor (dev);
1214 OUTPUT:
1215 RETVAL
1216
1217UV
1218makedev (UV maj, UV min)
1219 CODE:
1220 RETVAL = makedev (maj, min);
1221 OUTPUT:
1222 RETVAL
1650 1223
1651void 1224void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1225aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1226 PPCODE:
1654{ 1227{
… …
1656 1229
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1230 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1231 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1232 req->sv1 = newSVsv (fh_or_path);
1660 1233
1661 if (SvPOK (fh_or_path)) 1234 if (SvPOK (req->sv1))
1662 { 1235 {
1663 req->type = REQ_UTIME; 1236 req->type = EIO_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1); 1237 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 } 1238 }
1666 else 1239 else
1667 { 1240 {
1668 req->type = REQ_FUTIME; 1241 req->type = EIO_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1242 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 } 1243 }
1671 1244
1672 REQ_SEND; 1245 REQ_SEND;
1673} 1246}
… …
1679 dREQ; 1252 dREQ;
1680 1253
1681 req->sv1 = newSVsv (fh_or_path); 1254 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1255 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1256
1684 if (SvPOK (fh_or_path)) 1257 if (SvPOK (req->sv1))
1685 { 1258 {
1686 req->type = REQ_TRUNCATE; 1259 req->type = EIO_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1); 1260 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 } 1261 }
1689 else 1262 else
1690 { 1263 {
1691 req->type = REQ_FTRUNCATE; 1264 req->type = EIO_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1265 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 } 1266 }
1694 1267
1695 REQ_SEND; 1268 REQ_SEND;
1696} 1269}
1697 1270
1698void 1271void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1272aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1273 ALIAS:
1274 aio_chmod = EIO_CHMOD
1275 aio_mkdir = EIO_MKDIR
1700 PPCODE: 1276 PPCODE:
1701{ 1277{
1702 dREQ; 1278 dREQ;
1703 1279
1704 req->mode = mode; 1280 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1281 req->sv1 = newSVsv (fh_or_path);
1706 1282
1707 if (SvPOK (fh_or_path)) 1283 if (SvPOK (req->sv1))
1708 { 1284 {
1709 req->type = REQ_CHMOD; 1285 req->type = ix;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1); 1286 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 } 1287 }
1712 else 1288 else
1713 { 1289 {
1714 req->type = REQ_FCHMOD; 1290 req->type = EIO_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1291 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 } 1292 }
1717 1293
1718 REQ_SEND; 1294 REQ_SEND;
1719} 1295}
… …
1726 1302
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1303 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1304 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1305 req->sv1 = newSVsv (fh_or_path);
1730 1306
1731 if (SvPOK (fh_or_path)) 1307 if (SvPOK (req->sv1))
1732 { 1308 {
1733 req->type = REQ_CHOWN; 1309 req->type = EIO_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1310 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 } 1311 }
1736 else 1312 else
1737 { 1313 {
1738 req->type = REQ_FCHOWN; 1314 req->type = EIO_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1315 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 } 1316 }
1741 1317
1742 REQ_SEND; 1318 REQ_SEND;
1743} 1319}
1744 1320
1745void 1321void
1322aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1323 PPCODE:
1324{
1325 dREQ;
1326
1327 req->type = EIO_READDIR;
1328 req->sv1 = newSVsv (pathname);
1329 req->ptr1 = SvPVbyte_nolen (req->sv1);
1330 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1331
1332 if (flags & EIO_READDIR_DENTS)
1333 req->int1 |= EIO_READDIR_CUSTOM2;
1334
1335 REQ_SEND;
1336}
1337
1338void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1339aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1340 ALIAS:
1748 aio_unlink = REQ_UNLINK 1341 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1342 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1343 aio_readdir = EIO_READDIR
1751 PPCODE: 1344 PPCODE:
1752{ 1345{
1753 dREQ; 1346 dREQ;
1754 1347
1755 req->type = ix; 1348 req->type = ix;
… …
1758 1351
1759 REQ_SEND; 1352 REQ_SEND;
1760} 1353}
1761 1354
1762void 1355void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1356aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS: 1357 ALIAS:
1779 aio_link = REQ_LINK 1358 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1359 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1360 aio_rename = EIO_RENAME
1782 PPCODE: 1361 PPCODE:
1783{ 1362{
1784 dREQ; 1363 dREQ;
1785 1364
1786 req->type = ix; 1365 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1366 req->sv1 = newSVsv (oldpath);
1367 req->ptr1 = SvPVbyte_nolen (req->sv1);
1368 req->sv2 = newSVsv (newpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1369 req->ptr2 = SvPVbyte_nolen (req->sv2);
1789 req->sv1 = newSVsv (newpath);
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1370
1792 REQ_SEND; 1371 REQ_SEND;
1793} 1372}
1794 1373
1795void 1374void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1375aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE: 1376 PPCODE:
1798{ 1377{
1799 dREQ; 1378 dREQ;
1800 1379
1801 req->type = REQ_MKNOD; 1380 req->type = EIO_MKNOD;
1802 req->sv1 = newSVsv (pathname); 1381 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1382 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 1383 req->int2 = (mode_t)mode;
1805 req->offs = dev; 1384 req->offs = dev;
1806 1385
1807 REQ_SEND; 1386 REQ_SEND;
1808} 1387}
1809 1388
1810void 1389void
1390aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1391 ALIAS:
1392 aio_mtouch = EIO_MTOUCH
1393 aio_msync = EIO_MSYNC
1394 PPCODE:
1395{
1396 STRLEN svlen;
1397 char *svptr = SvPVbyte (data, svlen);
1398 UV len = SvUV (length);
1399
1400 if (offset < 0)
1401 offset += svlen;
1402
1403 if (offset < 0 || offset > svlen)
1404 croak ("offset outside of scalar");
1405
1406 if (!SvOK (length) || len + offset > svlen)
1407 len = svlen - offset;
1408
1409 {
1410 dREQ;
1411
1412 req->type = ix;
1413 req->sv2 = SvREFCNT_inc (data);
1414 req->ptr2 = (char *)svptr + offset;
1415 req->size = len;
1416 req->int1 = flags;
1417
1418 REQ_SEND;
1419 }
1420}
1421
1422void
1423aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1424 PPCODE:
1425{
1426 STRLEN svlen;
1427 char *svptr = SvPVbyte (data, svlen);
1428 UV len = SvUV (length);
1429
1430 if (offset < 0)
1431 offset += svlen;
1432
1433 if (offset < 0 || offset > svlen)
1434 croak ("offset outside of scalar");
1435
1436 if (!SvOK (length) || len + offset > svlen)
1437 len = svlen - offset;
1438
1439 {
1440 dREQ;
1441
1442 req->type = EIO_MLOCK;
1443 req->sv2 = SvREFCNT_inc (data);
1444 req->ptr2 = (char *)svptr + offset;
1445 req->size = len;
1446
1447 REQ_SEND;
1448 }
1449}
1450
1451void
1452aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1453 PPCODE:
1454{
1455 dREQ;
1456
1457 req->type = EIO_MLOCKALL;
1458 req->int1 = flags;
1459
1460 REQ_SEND;
1461}
1462
1463void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1464aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 1465 PPCODE:
1813{ 1466{
1814 dREQ; 1467 dREQ;
1815 1468
1816 req->type = REQ_BUSY; 1469 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1470 req->nv1 = delay < 0. ? 0. : delay;
1818 1471
1819 REQ_SEND; 1472 REQ_SEND;
1820} 1473}
1821 1474
1822void 1475void
1823aio_group (SV *callback=&PL_sv_undef) 1476aio_group (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1477 PPCODE:
1826{ 1478{
1827 dREQ; 1479 dREQ;
1828 1480
1829 req->type = REQ_GROUP; 1481 req->type = EIO_GROUP;
1830 1482
1831 req_send (req); 1483 req_submit (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1484 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1485}
1834 1486
1835void 1487void
1836aio_nop (SV *callback=&PL_sv_undef) 1488aio_nop (SV *callback=&PL_sv_undef)
1489 ALIAS:
1490 aio_nop = EIO_NOP
1491 aio_sync = EIO_SYNC
1837 PPCODE: 1492 PPCODE:
1838{ 1493{
1839 dREQ; 1494 dREQ;
1840 1495
1841 req->type = REQ_NOP; 1496 req->type = ix;
1842 1497
1843 REQ_SEND; 1498 REQ_SEND;
1844} 1499}
1845 1500
1846int 1501int
1847aioreq_pri (int pri = 0) 1502aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1503 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1504 RETVAL = next_pri;
1851 if (items > 0) 1505 if (items > 0)
1852 { 1506 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1507 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1508 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1509 next_pri = pri;
1856 } 1510 }
1857 OUTPUT: 1511 OUTPUT:
1858 RETVAL 1512 RETVAL
1859 1513
1860void 1514void
1861aioreq_nice (int nice = 0) 1515aioreq_nice (int nice = 0)
1862 CODE: 1516 CODE:
1863 nice = next_pri - nice; 1517 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1518 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1519 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1520 next_pri = nice;
1867 1521
1868void 1522void
1869flush () 1523flush ()
1870 PROTOTYPE:
1871 CODE: 1524 CODE:
1872 while (nreqs) 1525 while (eio_nreqs ())
1873 { 1526 {
1874 poll_wait (); 1527 poll_wait ();
1875 poll_cb (); 1528 poll_cb ();
1876 } 1529 }
1877 1530
1878int 1531int
1879poll() 1532poll ()
1880 PROTOTYPE:
1881 CODE: 1533 CODE:
1882 poll_wait (); 1534 poll_wait ();
1883 RETVAL = poll_cb (); 1535 RETVAL = poll_cb ();
1884 OUTPUT: 1536 OUTPUT:
1885 RETVAL 1537 RETVAL
1886 1538
1887int 1539int
1888poll_fileno() 1540poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1541 CODE:
1891 RETVAL = respipe [0]; 1542 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1543 OUTPUT:
1893 RETVAL 1544 RETVAL
1894 1545
1895int 1546int
1896poll_cb(...) 1547poll_cb (...)
1897 PROTOTYPE: 1548 PROTOTYPE:
1898 CODE: 1549 CODE:
1899 RETVAL = poll_cb (); 1550 RETVAL = poll_cb ();
1900 OUTPUT: 1551 OUTPUT:
1901 RETVAL 1552 RETVAL
1902 1553
1903void 1554void
1904poll_wait() 1555poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1556 CODE:
1907 poll_wait (); 1557 poll_wait ();
1908 1558
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1559int
1947nreqs() 1560nreqs ()
1948 PROTOTYPE:
1949 CODE: 1561 CODE:
1950 RETVAL = nreqs; 1562 RETVAL = eio_nreqs ();
1951 OUTPUT: 1563 OUTPUT:
1952 RETVAL 1564 RETVAL
1953 1565
1954int 1566int
1955nready() 1567nready ()
1956 PROTOTYPE:
1957 CODE: 1568 CODE:
1958 RETVAL = get_nready (); 1569 RETVAL = eio_nready ();
1959 OUTPUT: 1570 OUTPUT:
1960 RETVAL 1571 RETVAL
1961 1572
1962int 1573int
1963npending() 1574npending ()
1964 PROTOTYPE:
1965 CODE: 1575 CODE:
1966 RETVAL = get_npending (); 1576 RETVAL = eio_npending ();
1967 OUTPUT: 1577 OUTPUT:
1968 RETVAL 1578 RETVAL
1969 1579
1970int 1580int
1971nthreads() 1581nthreads ()
1972 PROTOTYPE:
1973 CODE: 1582 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1583 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1584 OUTPUT:
1978 RETVAL 1585 RETVAL
1979 1586
1587int
1588fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1589 CODE:
1590 RETVAL = posix_fadvise (fh, offset, length, advice);
1591 OUTPUT:
1592 RETVAL
1593
1594IV
1595sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1596 CODE:
1597 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1598 OUTPUT:
1599 RETVAL
1600
1601void
1602mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1603 PPCODE:
1604 sv_unmagic (scalar, MMAP_MAGIC);
1605{
1606 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1607 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1608 if (addr == (void *)-1)
1609 XSRETURN_NO;
1610
1611 sv_force_normal (scalar);
1612
1613 /* we store the length in mg_obj, as namlen is I32 :/ */
1614 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1615 ->mg_obj = (SV *)length;
1616
1617 SvUPGRADE (scalar, SVt_PV); /* nop... */
1618
1619 if (!(prot & PROT_WRITE))
1620 SvREADONLY_on (scalar);
1621
1622 if (SvLEN (scalar))
1623 Safefree (SvPVX (scalar));
1624
1625 SvPVX (scalar) = (char *)addr;
1626 SvCUR_set (scalar, length);
1627 SvLEN_set (scalar, 0);
1628 SvPOK_only (scalar);
1629
1630 XSRETURN_YES;
1631}
1632
1633void
1634munmap (SV *scalar)
1635 CODE:
1636 sv_unmagic (scalar, MMAP_MAGIC);
1637
1638int
1639madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1640 ALIAS:
1641 mprotect = 1
1642 CODE:
1643{
1644 STRLEN svlen;
1645 void *addr = SvPVbyte (scalar, svlen);
1646 size_t len = SvUV (length);
1647
1648 if (offset < 0)
1649 offset += svlen;
1650
1651 if (offset < 0 || offset > svlen)
1652 croak ("offset outside of scalar");
1653
1654 if (!SvOK (length) || len + offset > svlen)
1655 len = svlen - offset;
1656
1657 addr = (void *)(((intptr_t)addr) + offset);
1658 eio_page_align (&addr, &len);
1659
1660 switch (ix)
1661 {
1662 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1663 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1664 }
1665}
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1671 CODE:
1672{
1673 STRLEN svlen;
1674 void *addr = SvPVbyte (scalar, svlen);
1675 size_t len = SvUV (length);
1676
1677 if (offset < 0)
1678 offset += svlen;
1679
1680 if (offset < 0 || offset > svlen)
1681 croak ("offset outside of scalar");
1682
1683 if (!SvOK (length) || len + offset > svlen)
1684 len = svlen - offset;
1685
1686 addr = (void *)(((intptr_t)addr) + offset);
1687 eio_page_align (&addr, &len);
1688#if _POSIX_MEMLOCK_RANGE
1689 RETVAL = munlock (addr, len);
1690#else
1691 RETVAL = ((errno = ENOSYS), -1);
1692#endif
1693}
1694 OUTPUT:
1695 RETVAL
1696
1697int
1698munlockall ()
1699 CODE:
1700#if _POSIX_MEMLOCK
1701 munlockall ();
1702#else
1703 RETVAL = -1;
1704 errno = ENOSYS;
1705#endif
1706 OUTPUT:
1707 RETVAL
1708
1709void _on_next_submit (SV *cb)
1710 CODE:
1711 SvREFCNT_dec (on_next_submit);
1712 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1713
1980PROTOTYPES: DISABLE 1714PROTOTYPES: DISABLE
1981 1715
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1716MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1717
1984void 1718void
1985cancel (aio_req_ornot req) 1719cancel (aio_req_ornot req)
1986 CODE: 1720 CODE:
1987 req_cancel (req); 1721 eio_cancel (req);
1988 1722
1989void 1723void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1724cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1725 PPCODE:
1726{
1727 if (GIMME_V != G_VOID)
1728 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1729
1730 if (items > 1)
1731 {
1732 SV *cb_cv =get_cb (callback);
1733
1992 SvREFCNT_dec (req->callback); 1734 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1735 req->callback = SvREFCNT_inc (cb_cv);
1736 }
1737}
1994 1738
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1739MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1740
1997void 1741void
1998add (aio_req grp, ...) 1742add (aio_req grp, ...)
1999 PPCODE: 1743 PPCODE:
2000{ 1744{
2001 int i; 1745 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1746
2007 if (grp->int1 == 2) 1747 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1748 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1749
2010 for (i = 1; i < items; ++i ) 1750 for (i = 1; i < items; ++i )
2011 { 1751 {
1752 aio_req req;
1753
2012 if (GIMME_V != G_VOID) 1754 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1755 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1756
2015 req = SvAIO_REQ (ST (i)); 1757 req = SvAIO_REQ (ST (i));
2016 1758
2017 if (req) 1759 if (req)
2018 { 1760 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1761 }
2031} 1762}
2032 1763
2033void 1764void
2034cancel_subs (aio_req_ornot req) 1765cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1774 AV *av;
2044 1775
2045 grp->errorno = errno; 1776 grp->errorno = errno;
2046 1777
2047 av = newAV (); 1778 av = newAV ();
1779 av_extend (av, items - 1);
2048 1780
2049 for (i = 1; i < items; ++i ) 1781 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1782 av_push (av, newSVsv (ST (i)));
2051 1783
2052 SvREFCNT_dec (grp->sv1); 1784 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1791 grp->errorno = errorno;
2060 1792
2061void 1793void
2062limit (aio_req grp, int limit) 1794limit (aio_req grp, int limit)
2063 CODE: 1795 CODE:
2064 grp->int2 = limit; 1796 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1797
2067void 1798void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1799feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1800 CODE:
2070{ 1801{
2071 SvREFCNT_dec (grp->sv2); 1802 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1803 grp->sv2 = newSVsv (callback);
1804 grp->feed = aio_grp_feed;
2073 1805
2074 if (grp->int2 <= 0) 1806 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1807 grp->int2 = 2;
2076 1808
2077 aio_grp_feed (grp); 1809 eio_grp_limit (grp, grp->int2);
2078} 1810}
2079 1811

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