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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC vs.
Revision 1.192 by root, Sun Jul 24 03:32:52 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_osf [2], respipe [2] = { -1, -1 };
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;
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_respipe ()
640{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe)) 675 if (s_epipe_renew (&respipe))
650#endif
651 croak ("unable to initialize result pipe"); 676 croak ("IO::AIO: unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674} 677}
675 678
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait () 679static void poll_wait (void)
772{ 680{
773 fd_set rfd;
774
775 while (nreqs) 681 while (eio_nreqs ())
776 { 682 {
777 int size; 683 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 684
685 X_LOCK (reslock);
779 size = res_queue.size; 686 size = res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 687 X_UNLOCK (reslock);
781 688
782 if (size) 689 if (size)
783 return; 690 return;
784 691
785 maybe_start_thread (); 692 etp_maybe_start_thread ();
786 693
787 FD_ZERO (&rfd); 694 s_epipe_wait (&respipe);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
791 } 695 }
792} 696}
793 697
794static int poll_cb () 698static int poll_cb (void)
795{ 699{
796 dSP;
797 int count = 0;
798 int maxreqs = max_poll_reqs;
799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
807
808 for (;;) 700 for (;;)
809 { 701 {
810 for (;;) 702 int res = eio_poll ();
811 {
812 maybe_start_thread ();
813 703
814 X_LOCK (reslock); 704 if (res > 0)
815 req = reqq_shift (&res_queue);
816
817 if (req)
818 {
819 --npending;
820
821 if (!res_queue.size)
822 {
823 /* read any signals sent by the worker threads */
824 char buf [4];
825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 }
842 else
843 {
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0); 705 croak (0);
849 }
850 706
851 count++; 707 if (!max_outstanding || max_outstanding > eio_nreqs ())
852 } 708 return res;
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
865 }
866 }
867
868 if (nreqs <= max_outstanding)
869 break;
870 709
871 poll_wait (); 710 poll_wait ();
872
873 ++maxreqs;
874 } 711 }
712}
875 713
876 unblock_sig (); 714static void ecb_cold
877 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");
878} 721}
879 722
880/*****************************************************************************/ 723/*****************************************************************************/
881/* work around various missing functions */
882 724
883#if !HAVE_PREADWRITE 725#if !_POSIX_MAPPED_FILES
884# define pread aio_pread 726# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
885# define pwrite aio_pwrite 727# define munmap(addr,length) (errno = ENOSYS, -1)
886
887/*
888 * make our pread/pwrite safe against themselves, but not against
889 * normal read/write by using a mutex. slows down execution a lot,
890 * but that's your problem, not mine.
891 */
892static mutex_t preadwritelock = X_MUTEX_INIT;
893
894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
895{
896 ssize_t res;
897 off_t ooffset;
898
899 X_LOCK (preadwritelock);
900 ooffset = lseek (fd, 0, SEEK_CUR);
901 lseek (fd, offset, SEEK_SET);
902 res = read (fd, buf, count);
903 lseek (fd, ooffset, SEEK_SET);
904 X_UNLOCK (preadwritelock);
905
906 return res;
907}
908
909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
910{
911 ssize_t res;
912 off_t ooffset;
913
914 X_LOCK (preadwritelock);
915 ooffset = lseek (fd, 0, SEEK_CUR);
916 lseek (fd, offset, SEEK_SET);
917 res = write (fd, buf, count);
918 lseek (fd, offset, SEEK_SET);
919 X_UNLOCK (preadwritelock);
920
921 return res;
922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
951#endif
952
953#if !HAVE_FDATASYNC
954# define fdatasync fsync
955#endif
956
957#if !HAVE_READAHEAD
958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
959
960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
961{
962 size_t todo = count;
963 dBUF;
964
965 while (todo > 0)
966 {
967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
968
969 pread (fd, aio_buf, len, offset);
970 offset += len;
971 todo -= len;
972 }
973
974 errno = 0;
975 return count;
976}
977
978#endif
979
980#if !HAVE_READDIR_R
981# define readdir_r aio_readdir_r
982
983static mutex_t readdirlock = X_MUTEX_INIT;
984
985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
986{
987 X_DIRENT *e;
988 int errorno;
989
990 X_LOCK (readdirlock);
991
992 e = readdir (dirp);
993 errorno = errno;
994
995 if (e)
996 {
997 *res = ent;
998 strcpy (ent->d_name, e->d_name);
999 }
1000 else
1001 *res = 0;
1002
1003 X_UNLOCK (readdirlock);
1004
1005 errno = errorno;
1006 return e ? 0 : -1;
1007}
1008#endif
1009
1010/* sendfile always needs emulation */
1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1012{
1013 ssize_t res;
1014
1015 if (!count)
1016 return 0;
1017
1018#if HAVE_SENDFILE
1019# if __linux
1020 res = sendfile (ofd, ifd, &offset, count);
1021
1022# elif __freebsd
1023 /*
1024 * Of course, the freebsd sendfile is a dire hack with no thoughts
1025 * wasted on making it similar to other I/O functions.
1026 */
1027 {
1028 off_t sbytes;
1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1030
1031 if (res < 0 && sbytes)
1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1033 res = sbytes;
1034 }
1035
1036# elif __hpux
1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
1038
1039# elif __solaris
1040 {
1041 struct sendfilevec vec;
1042 size_t sbytes;
1043
1044 vec.sfv_fd = ifd;
1045 vec.sfv_flag = 0;
1046 vec.sfv_off = offset;
1047 vec.sfv_len = count;
1048
1049 res = sendfilev (ofd, &vec, 1, &sbytes);
1050
1051 if (res < 0 && sbytes)
1052 res = sbytes;
1053 }
1054
1055# endif 728#endif
1056#else
1057 res = -1;
1058 errno = ENOSYS;
1059#endif
1060 729
1061 if (res < 0 730#if !_POSIX_MEMORY_PROTECTION
1062 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 731# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1063#if __solaris 732# define PROT_NONE 0
1064 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 733# define PROT_WRITE 0
734# define MAP_PRIVATE 0
735# define MAP_SHARED 0
736# define MAP_FIXED 0
1065#endif 737#endif
1066 )
1067 )
1068 {
1069 /* emulate sendfile. this is a major pain in the ass */
1070 dBUF;
1071 738
1072 res = 0; 739#define MMAP_MAGIC PERL_MAGIC_ext
1073 740
1074 while (count) 741static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1075 { 742{
1076 ssize_t cnt; 743 int old_errno = errno;
1077 744 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1078 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 745 errno = old_errno;
1079 746
1080 if (cnt <= 0) 747 mg->mg_obj = 0; /* just in case */
1081 {
1082 if (cnt && !res) res = -1;
1083 break;
1084 }
1085 748
1086 cnt = write (ofd, aio_buf, cnt); 749 SvREADONLY_off (sv);
1087 750
1088 if (cnt <= 0) 751 if (SvPVX (sv) != mg->mg_ptr)
1089 { 752 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1090 if (cnt && !res) res = -1;
1091 break;
1092 }
1093 753
1094 offset += cnt; 754 SvCUR_set (sv, 0);
1095 res += cnt; 755 SvPVX (sv) = 0;
1096 count -= cnt; 756 SvOK_off (sv);
1097 }
1098 }
1099 757
1100 return res; 758 return 0;
1101} 759}
1102 760
1103/* read a full directory */ 761static MGVTBL mmap_vtbl = {
1104static void scandir_ (aio_req req, worker *self) 762 0, 0, 0, 0, mmap_free
1105{ 763};
1106 DIR *dirp;
1107 union
1108 {
1109 X_DIRENT d;
1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1111 } *u;
1112 X_DIRENT *entp;
1113 char *name, *names;
1114 int memlen = 4096;
1115 int memofs = 0;
1116 int res = 0;
1117
1118 X_LOCK (wrklock);
1119 self->dirp = dirp = opendir (req->ptr1);
1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
1124
1125 if (dirp && u && names)
1126 for (;;)
1127 {
1128 errno = 0;
1129 readdir_r (dirp, &u->d, &entp);
1130
1131 if (!entp)
1132 break;
1133
1134 name = entp->d_name;
1135
1136 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1137 {
1138 int len = strlen (name) + 1;
1139
1140 res++;
1141
1142 while (memofs + len > memlen)
1143 {
1144 memlen *= 2;
1145 X_LOCK (wrklock);
1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
1149 if (!names)
1150 break;
1151 }
1152
1153 memcpy (names + memofs, name, len);
1154 memofs += len;
1155 }
1156 }
1157
1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162}
1163 764
1164/*****************************************************************************/ 765/*****************************************************************************/
1165 766
1166X_THREAD_PROC (aio_proc) 767static SV * get_cb (SV *cb_sv)
1167{ 768{
1168 {//D 769 SvGETMAGIC (cb_sv);
1169 aio_req req; 770 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
1177 {
1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1179
1180 X_LOCK (reqlock);
1181
1182 for (;;)
1183 {
1184 self->req = req = reqq_shift (&req_queue);
1185
1186 if (req)
1187 break;
1188
1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
1210 }
1211
1212 --nready;
1213
1214 X_UNLOCK (reqlock);
1215
1216 errno = 0; /* strictly unnecessary */
1217
1218 if (!(req->flags & FLAG_CANCELLED))
1219 switch (req->type)
1220 {
1221 case REQ_READ: req->result = req->offs >= 0
1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1227
1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1230
1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1243 case REQ_CLOSE: req->result = close (req->int1); break;
1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1252
1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1255 case REQ_READDIR: scandir_ (req, self); break;
1256
1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1261 {
1262 struct timeval tv;
1263
1264 tv.tv_sec = req->nv1;
1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1266
1267 req->result = select (0, 0, 0, 0, &tv);
1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
1295
1296 case REQ_GROUP:
1297 case REQ_NOP:
1298 break;
1299
1300 case REQ_QUIT:
1301 goto quit;
1302
1303 default:
1304 req->result = -1;
1305 break;
1306 }
1307
1308 req->errorno = errno;
1309
1310 X_LOCK (reslock);
1311
1312 ++npending;
1313
1314 if (!reqq_push (&res_queue, req))
1315 {
1316 /* write a dummy byte to the pipe so fh becomes ready */
1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1318
1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
1328 }
1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
1334
1335 return 0;
1336 }//D
1337}
1338
1339/*****************************************************************************/
1340
1341static void atfork_prepare (void)
1342{
1343 X_LOCK (wrklock);
1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
1346#if !HAVE_PREADWRITE
1347 X_LOCK (preadwritelock);
1348#endif
1349#if !HAVE_READDIR_R
1350 X_LOCK (readdirlock);
1351#endif
1352}
1353
1354static void atfork_parent (void)
1355{
1356#if !HAVE_READDIR_R
1357 X_UNLOCK (readdirlock);
1358#endif
1359#if !HAVE_PREADWRITE
1360 X_UNLOCK (preadwritelock);
1361#endif
1362 X_UNLOCK (reslock);
1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
1365}
1366
1367static void atfork_child (void)
1368{
1369 aio_req prv;
1370
1371 while (prv = reqq_shift (&req_queue))
1372 req_destroy (prv);
1373
1374 while (prv = reqq_shift (&res_queue))
1375 req_destroy (prv);
1376
1377 while (wrk_first.next != &wrk_first)
1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
1394 create_respipe ();
1395
1396 atfork_parent ();
1397} 771}
1398 772
1399#define dREQ \ 773#define dREQ \
774 SV *cb_cv; \
1400 aio_req req; \ 775 aio_req req; \
1401 int req_pri = next_pri; \ 776 int req_pri = next_pri; \
1402 next_pri = DEFAULT_PRI + PRI_BIAS; \ 777 next_pri = EIO_PRI_DEFAULT; \
1403 \ 778 \
1404 if (SvOK (callback) && !SvROK (callback)) \ 779 cb_cv = get_cb (callback); \
1405 croak ("callback must be undef or of reference type"); \
1406 \ 780 \
1407 Newz (0, req, 1, aio_cb); \ 781 Newz (0, req, 1, eio_req); \
1408 if (!req) \ 782 if (!req) \
1409 croak ("out of memory during aio_req allocation"); \ 783 croak ("out of memory during eio_req allocation"); \
1410 \ 784 \
1411 req->callback = newSVsv (callback); \ 785 req->callback = SvREFCNT_inc (cb_cv); \
1412 req->pri = req_pri 786 req->pri = req_pri
1413 787
1414#define REQ_SEND \ 788#define REQ_SEND \
789 PUTBACK; \
1415 req_send (req); \ 790 req_submit (req); \
791 SPAGAIN; \
1416 \ 792 \
1417 if (GIMME_V != G_VOID) \ 793 if (GIMME_V != G_VOID) \
1418 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 794 XPUSHs (req_sv (req, aio_req_stash));
1419 795
1420MODULE = IO::AIO PACKAGE = IO::AIO 796MODULE = IO::AIO PACKAGE = IO::AIO
1421 797
1422PROTOTYPES: ENABLE 798PROTOTYPES: ENABLE
1423 799
1424BOOT: 800BOOT:
1425{ 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
1426 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);
1427 922
1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 923 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 924 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440 925
1441 X_COND_CHECK (reqwait); 926 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446 927
1447 create_respipe (); 928 reinit ();
1448
1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1450} 929}
1451 930
1452void 931void
932reinit ()
933 PROTOTYPE:
934 CODE:
935 reinit ();
936
937void
1453max_poll_reqs (int nreqs) 938max_poll_reqs (unsigned int nreqs)
1454 PROTOTYPE: $ 939 PROTOTYPE: $
1455 CODE: 940 CODE:
1456 max_poll_reqs = nreqs; 941 eio_set_max_poll_reqs (nreqs);
1457 942
1458void 943void
1459max_poll_time (double nseconds) 944max_poll_time (double nseconds)
1460 PROTOTYPE: $ 945 PROTOTYPE: $
1461 CODE: 946 CODE:
1462 max_poll_time = nseconds * AIO_TICKS; 947 eio_set_max_poll_time (nseconds);
1463 948
1464void 949void
1465min_parallel (int nthreads) 950min_parallel (unsigned int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $ 951 PROTOTYPE: $
1475 CODE: 952 CODE:
1476 set_max_idle (nthreads); 953 eio_set_min_parallel (nthreads);
1477 954
1478int 955void
1479max_outstanding (int maxreqs) 956max_parallel (unsigned int nthreads)
1480 PROTOTYPE: $ 957 PROTOTYPE: $
1481 CODE: 958 CODE:
1482 RETVAL = max_outstanding; 959 eio_set_max_parallel (nthreads);
960
961void
962max_idle (unsigned int nthreads)
963 PROTOTYPE: $
964 CODE:
965 eio_set_max_idle (nthreads);
966
967void
968idle_timeout (unsigned int seconds)
969 PROTOTYPE: $
970 CODE:
971 eio_set_idle_timeout (seconds);
972
973void
974max_outstanding (unsigned int maxreqs)
975 PROTOTYPE: $
976 CODE:
1483 max_outstanding = maxreqs; 977 max_outstanding = maxreqs;
1484 OUTPUT:
1485 RETVAL
1486 978
1487void 979void
1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 980aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $$$;$
1490 PPCODE: 981 PPCODE:
1491{ 982{
1492 dREQ; 983 dREQ;
1493 984
1494 req->type = REQ_OPEN; 985 req->type = EIO_OPEN;
1495 req->sv1 = newSVsv (pathname); 986 req->sv1 = newSVsv (pathname);
1496 req->ptr1 = SvPVbyte_nolen (req->sv1); 987 req->ptr1 = SvPVbyte_nolen (req->sv1);
1497 req->int1 = flags; 988 req->int1 = flags;
1498 req->mode = mode; 989 req->int2 = mode;
1499 990
1500 REQ_SEND; 991 REQ_SEND;
1501} 992}
1502 993
1503void 994void
1504aio_close (SV *fh, SV *callback=&PL_sv_undef) 995aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $;$
1506 ALIAS: 996 ALIAS:
1507 aio_close = REQ_CLOSE
1508 aio_fsync = REQ_FSYNC 997 aio_fsync = EIO_FSYNC
1509 aio_fdatasync = REQ_FDATASYNC 998 aio_fdatasync = EIO_FDATASYNC
999 aio_syncfs = EIO_SYNCFS
1510 PPCODE: 1000 PPCODE:
1511{ 1001{
1002 int fd = s_fileno_croak (fh, 0);
1512 dREQ; 1003 dREQ;
1513 1004
1514 req->type = ix; 1005 req->type = ix;
1515 req->sv1 = newSVsv (fh); 1006 req->sv1 = newSVsv (fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1007 req->int1 = fd;
1008
1009 REQ_SEND (req);
1010}
1011
1012void
1013aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1014 PPCODE:
1015{
1016 int fd = s_fileno_croak (fh, 0);
1017 dREQ;
1018
1019 req->type = EIO_SYNC_FILE_RANGE;
1020 req->sv1 = newSVsv (fh);
1021 req->int1 = fd;
1022 req->offs = offset;
1023 req->size = nbytes;
1024 req->int2 = flags;
1025
1026 REQ_SEND (req);
1027}
1028
1029void
1030aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1031 PPCODE:
1032{
1033 int fd = s_fileno_croak (fh, 0);
1034 dREQ;
1035
1036 req->type = EIO_FALLOCATE;
1037 req->sv1 = newSVsv (fh);
1038 req->int1 = fd;
1039 req->int2 = mode;
1040 req->offs = offset;
1041 req->size = len;
1042
1043 REQ_SEND (req);
1044}
1045
1046void
1047aio_close (SV *fh, SV *callback=&PL_sv_undef)
1048 PPCODE:
1049{
1050 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1051 int fd = s_fileno_croak (fh, 0);
1052 dREQ;
1053
1054 if (expect_false (close_fd < 0))
1055 {
1056 int pipefd [2];
1057
1058 if (
1059#ifdef _WIN32
1060 _pipe (pipefd, 1, _O_BINARY) < 0
1061#else
1062 pipe (pipefd) < 0
1063 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1064#endif
1065 || close (pipefd [1]) < 0
1066 )
1067 abort (); /*D*/
1068
1069 close_fd = pipefd [0];
1070 }
1071
1072 req->type = EIO_DUP2;
1073 req->int1 = close_fd;
1074 req->sv2 = newSVsv (fh);
1075 req->int2 = fd;
1517 1076
1518 REQ_SEND (req); 1077 REQ_SEND (req);
1519} 1078}
1520 1079
1521void 1080void
1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1081aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1523 ALIAS: 1082 ALIAS:
1524 aio_read = REQ_READ 1083 aio_read = EIO_READ
1525 aio_write = REQ_WRITE 1084 aio_write = EIO_WRITE
1526 PROTOTYPE: $$$$$;$
1527 PPCODE: 1085 PPCODE:
1528{ 1086{
1529 STRLEN svlen; 1087 STRLEN svlen;
1088 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1530 char *svptr = SvPVbyte (data, svlen); 1089 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length); 1090 UV len = SvUV (length);
1532 1091
1533 SvUPGRADE (data, SVt_PV);
1534 SvPOK_on (data);
1535
1536 if (dataoffset < 0) 1092 if (dataoffset < 0)
1537 dataoffset += svlen; 1093 dataoffset += svlen;
1538 1094
1539 if (dataoffset < 0 || dataoffset > svlen) 1095 if (dataoffset < 0 || dataoffset > svlen)
1540 croak ("dataoffset outside of data scalar"); 1096 croak ("dataoffset outside of data scalar");
1541 1097
1542 if (ix == REQ_WRITE) 1098 if (ix == EIO_WRITE)
1543 { 1099 {
1544 /* write: check length and adjust. */ 1100 /* write: check length and adjust. */
1545 if (!SvOK (length) || len + dataoffset > svlen) 1101 if (!SvOK (length) || len + dataoffset > svlen)
1546 len = svlen - dataoffset; 1102 len = svlen - dataoffset;
1547 } 1103 }
1548 else 1104 else
1549 { 1105 {
1550 /* read: grow scalar as necessary */ 1106 /* read: check type and grow scalar as necessary */
1107 SvUPGRADE (data, SVt_PV);
1551 svptr = SvGROW (data, len + dataoffset + 1); 1108 svptr = SvGROW (data, len + dataoffset + 1);
1552 } 1109 }
1553 1110
1554 if (len < 0)
1555 croak ("length must not be negative");
1556
1557 { 1111 {
1558 dREQ; 1112 dREQ;
1559 1113
1560 req->type = ix; 1114 req->type = ix;
1561 req->sv1 = newSVsv (fh); 1115 req->sv1 = newSVsv (fh);
1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1116 req->int1 = fd;
1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1117 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1565 req->size = len; 1118 req->size = len;
1566 req->sv2 = SvREFCNT_inc (data); 1119 req->sv2 = SvREFCNT_inc (data);
1567 req->ptr1 = (char *)svptr + dataoffset; 1120 req->ptr2 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset; 1121 req->stroffset = dataoffset;
1569 1122
1570 if (!SvREADONLY (data)) 1123 if (!SvREADONLY (data))
1571 { 1124 {
1572 SvREADONLY_on (data); 1125 SvREADONLY_on (data);
… …
1577 } 1130 }
1578} 1131}
1579 1132
1580void 1133void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1134aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1582 PROTOTYPE: $$;$ 1135 ALIAS:
1136 aio_readlink = EIO_READLINK
1137 aio_realpath = EIO_REALPATH
1583 PPCODE: 1138 PPCODE:
1584{ 1139{
1585 SV *data;
1586 dREQ; 1140 dREQ;
1587 1141
1588 data = newSV (NAME_MAX);
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK; 1142 req->type = ix;
1592 req->sv1 = newSVsv (path); 1143 req->sv1 = newSVsv (path);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1); 1144 req->ptr1 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596 1145
1597 REQ_SEND; 1146 REQ_SEND;
1598} 1147}
1599 1148
1600void 1149void
1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1150aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1602 PROTOTYPE: $$$$;$
1603 PPCODE: 1151 PPCODE:
1604{ 1152{
1153 int ifd = s_fileno_croak (in_fh , 0);
1154 int ofd = s_fileno_croak (out_fh, 1);
1605 dREQ; 1155 dREQ;
1606 1156
1607 req->type = REQ_SENDFILE; 1157 req->type = EIO_SENDFILE;
1608 req->sv1 = newSVsv (out_fh); 1158 req->sv1 = newSVsv (out_fh);
1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1159 req->int1 = ofd;
1610 req->sv2 = newSVsv (in_fh); 1160 req->sv2 = newSVsv (in_fh);
1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1161 req->int2 = ifd;
1612 req->offs = SvVAL64 (in_offset); 1162 req->offs = in_offset;
1613 req->size = length; 1163 req->size = length;
1614 1164
1615 REQ_SEND; 1165 REQ_SEND;
1616} 1166}
1617 1167
1618void 1168void
1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1169aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1620 PROTOTYPE: $$$;$
1621 PPCODE: 1170 PPCODE:
1622{ 1171{
1172 int fd = s_fileno_croak (fh, 0);
1623 dREQ; 1173 dREQ;
1624 1174
1625 req->type = REQ_READAHEAD; 1175 req->type = EIO_READAHEAD;
1626 req->sv1 = newSVsv (fh); 1176 req->sv1 = newSVsv (fh);
1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1177 req->int1 = fd;
1628 req->offs = SvVAL64 (offset); 1178 req->offs = offset;
1629 req->size = length; 1179 req->size = length;
1630 1180
1631 REQ_SEND; 1181 REQ_SEND;
1632} 1182}
1633 1183
1634void 1184void
1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1185aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1636 ALIAS: 1186 ALIAS:
1637 aio_stat = REQ_STAT 1187 aio_stat = EIO_STAT
1638 aio_lstat = REQ_LSTAT 1188 aio_lstat = EIO_LSTAT
1189 aio_statvfs = EIO_STATVFS
1639 PPCODE: 1190 PPCODE:
1640{ 1191{
1641 dREQ; 1192 dREQ;
1642 1193
1643 req->ptr2 = malloc (sizeof (Stat_t));
1644 if (!req->ptr2)
1645 {
1646 req_destroy (req);
1647 croak ("out of memory during aio_stat statdata allocation");
1648 }
1649
1650 req->flags |= FLAG_PTR2_FREE;
1651 req->sv1 = newSVsv (fh_or_path); 1194 req->sv1 = newSVsv (fh_or_path);
1652 1195
1653 if (SvPOK (fh_or_path)) 1196 if (SvPOK (req->sv1))
1654 { 1197 {
1655 req->type = ix; 1198 req->type = ix;
1656 req->ptr1 = SvPVbyte_nolen (req->sv1); 1199 req->ptr1 = SvPVbyte_nolen (req->sv1);
1657 } 1200 }
1658 else 1201 else
1659 { 1202 {
1660 req->type = REQ_FSTAT; 1203 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1204 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1662 } 1205 }
1663 1206
1664 REQ_SEND; 1207 REQ_SEND;
1665} 1208}
1209
1210UV
1211major (UV dev)
1212 ALIAS:
1213 minor = 1
1214 CODE:
1215 RETVAL = ix ? major (dev) : minor (dev);
1216 OUTPUT:
1217 RETVAL
1218
1219UV
1220makedev (UV maj, UV min)
1221 CODE:
1222 RETVAL = makedev (maj, min);
1223 OUTPUT:
1224 RETVAL
1666 1225
1667void 1226void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1227aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1669 PPCODE: 1228 PPCODE:
1670{ 1229{
… …
1672 1231
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1232 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1233 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path); 1234 req->sv1 = newSVsv (fh_or_path);
1676 1235
1677 if (SvPOK (fh_or_path)) 1236 if (SvPOK (req->sv1))
1678 { 1237 {
1679 req->type = REQ_UTIME; 1238 req->type = EIO_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1); 1239 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 } 1240 }
1682 else 1241 else
1683 { 1242 {
1684 req->type = REQ_FUTIME; 1243 req->type = EIO_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1244 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 } 1245 }
1687 1246
1688 REQ_SEND; 1247 REQ_SEND;
1689} 1248}
… …
1695 dREQ; 1254 dREQ;
1696 1255
1697 req->sv1 = newSVsv (fh_or_path); 1256 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1257 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699 1258
1700 if (SvPOK (fh_or_path)) 1259 if (SvPOK (req->sv1))
1701 { 1260 {
1702 req->type = REQ_TRUNCATE; 1261 req->type = EIO_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1); 1262 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 } 1263 }
1705 else 1264 else
1706 { 1265 {
1707 req->type = REQ_FTRUNCATE; 1266 req->type = EIO_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1267 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 } 1268 }
1710 1269
1711 REQ_SEND; 1270 REQ_SEND;
1712} 1271}
1713 1272
1714void 1273void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1274aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1275 ALIAS:
1276 aio_chmod = EIO_CHMOD
1277 aio_mkdir = EIO_MKDIR
1716 PPCODE: 1278 PPCODE:
1717{ 1279{
1718 dREQ; 1280 dREQ;
1719 1281
1720 req->mode = mode; 1282 req->int2 = mode;
1721 req->sv1 = newSVsv (fh_or_path); 1283 req->sv1 = newSVsv (fh_or_path);
1722 1284
1723 if (SvPOK (fh_or_path)) 1285 if (SvPOK (req->sv1))
1724 { 1286 {
1725 req->type = REQ_CHMOD; 1287 req->type = ix;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1); 1288 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 } 1289 }
1728 else 1290 else
1729 { 1291 {
1730 req->type = REQ_FCHMOD; 1292 req->type = EIO_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1293 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 } 1294 }
1733 1295
1734 REQ_SEND; 1296 REQ_SEND;
1735} 1297}
… …
1742 1304
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1305 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1306 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path); 1307 req->sv1 = newSVsv (fh_or_path);
1746 1308
1747 if (SvPOK (fh_or_path)) 1309 if (SvPOK (req->sv1))
1748 { 1310 {
1749 req->type = REQ_CHOWN; 1311 req->type = EIO_CHOWN;
1750 req->ptr1 = SvPVbyte_nolen (req->sv1); 1312 req->ptr1 = SvPVbyte_nolen (req->sv1);
1751 } 1313 }
1752 else 1314 else
1753 { 1315 {
1754 req->type = REQ_FCHOWN; 1316 req->type = EIO_FCHOWN;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1317 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1756 } 1318 }
1757 1319
1758 REQ_SEND; 1320 REQ_SEND;
1759} 1321}
1760 1322
1761void 1323void
1324aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1325 PPCODE:
1326{
1327 dREQ;
1328
1329 req->type = EIO_READDIR;
1330 req->sv1 = newSVsv (pathname);
1331 req->ptr1 = SvPVbyte_nolen (req->sv1);
1332 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1333
1334 if (flags & EIO_READDIR_DENTS)
1335 req->int1 |= EIO_READDIR_CUSTOM2;
1336
1337 REQ_SEND;
1338}
1339
1340void
1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1341aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1763 ALIAS: 1342 ALIAS:
1764 aio_unlink = REQ_UNLINK 1343 aio_unlink = EIO_UNLINK
1765 aio_rmdir = REQ_RMDIR 1344 aio_rmdir = EIO_RMDIR
1766 aio_readdir = REQ_READDIR 1345 aio_readdir = EIO_READDIR
1767 PPCODE: 1346 PPCODE:
1768{ 1347{
1769 dREQ; 1348 dREQ;
1770 1349
1771 req->type = ix; 1350 req->type = ix;
… …
1774 1353
1775 REQ_SEND; 1354 REQ_SEND;
1776} 1355}
1777 1356
1778void 1357void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1783
1784 req->type = REQ_MKDIR;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode;
1788
1789 REQ_SEND;
1790}
1791
1792void
1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1358aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1794 ALIAS: 1359 ALIAS:
1795 aio_link = REQ_LINK 1360 aio_link = EIO_LINK
1796 aio_symlink = REQ_SYMLINK 1361 aio_symlink = EIO_SYMLINK
1797 aio_rename = REQ_RENAME 1362 aio_rename = EIO_RENAME
1798 PPCODE: 1363 PPCODE:
1799{ 1364{
1800 dREQ; 1365 dREQ;
1801 1366
1802 req->type = ix; 1367 req->type = ix;
1803 req->sv2 = newSVsv (oldpath); 1368 req->sv1 = newSVsv (oldpath);
1369 req->ptr1 = SvPVbyte_nolen (req->sv1);
1370 req->sv2 = newSVsv (newpath);
1804 req->ptr2 = SvPVbyte_nolen (req->sv2); 1371 req->ptr2 = SvPVbyte_nolen (req->sv2);
1805 req->sv1 = newSVsv (newpath);
1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1807 1372
1808 REQ_SEND; 1373 REQ_SEND;
1809} 1374}
1810 1375
1811void 1376void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1377aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1813 PPCODE: 1378 PPCODE:
1814{ 1379{
1815 dREQ; 1380 dREQ;
1816 1381
1817 req->type = REQ_MKNOD; 1382 req->type = EIO_MKNOD;
1818 req->sv1 = newSVsv (pathname); 1383 req->sv1 = newSVsv (pathname);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1); 1384 req->ptr1 = SvPVbyte_nolen (req->sv1);
1820 req->mode = (mode_t)mode; 1385 req->int2 = (mode_t)mode;
1821 req->offs = dev; 1386 req->offs = dev;
1822 1387
1823 REQ_SEND; 1388 REQ_SEND;
1824} 1389}
1825 1390
1826void 1391void
1392aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1393 ALIAS:
1394 aio_mtouch = EIO_MTOUCH
1395 aio_msync = EIO_MSYNC
1396 PPCODE:
1397{
1398 STRLEN svlen;
1399 char *svptr = SvPVbyte (data, svlen);
1400 UV len = SvUV (length);
1401
1402 if (offset < 0)
1403 offset += svlen;
1404
1405 if (offset < 0 || offset > svlen)
1406 croak ("offset outside of scalar");
1407
1408 if (!SvOK (length) || len + offset > svlen)
1409 len = svlen - offset;
1410
1411 {
1412 dREQ;
1413
1414 req->type = ix;
1415 req->sv2 = SvREFCNT_inc (data);
1416 req->ptr2 = (char *)svptr + offset;
1417 req->size = len;
1418 req->int1 = flags;
1419
1420 REQ_SEND;
1421 }
1422}
1423
1424void
1425aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1426 PPCODE:
1427{
1428 STRLEN svlen;
1429 char *svptr = SvPVbyte (data, svlen);
1430 UV len = SvUV (length);
1431
1432 if (offset < 0)
1433 offset += svlen;
1434
1435 if (offset < 0 || offset > svlen)
1436 croak ("offset outside of scalar");
1437
1438 if (!SvOK (length) || len + offset > svlen)
1439 len = svlen - offset;
1440
1441 {
1442 dREQ;
1443
1444 req->type = EIO_MLOCK;
1445 req->sv2 = SvREFCNT_inc (data);
1446 req->ptr2 = (char *)svptr + offset;
1447 req->size = len;
1448
1449 REQ_SEND;
1450 }
1451}
1452
1453void
1454aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1455 PPCODE:
1456{
1457 dREQ;
1458
1459 req->type = EIO_MLOCKALL;
1460 req->int1 = flags;
1461
1462 REQ_SEND;
1463}
1464
1465void
1827aio_busy (double delay, SV *callback=&PL_sv_undef) 1466aio_busy (double delay, SV *callback=&PL_sv_undef)
1828 PPCODE: 1467 PPCODE:
1829{ 1468{
1830 dREQ; 1469 dREQ;
1831 1470
1832 req->type = REQ_BUSY; 1471 req->type = EIO_BUSY;
1833 req->nv1 = delay < 0. ? 0. : delay; 1472 req->nv1 = delay < 0. ? 0. : delay;
1834 1473
1835 REQ_SEND; 1474 REQ_SEND;
1836} 1475}
1837 1476
1838void 1477void
1839aio_group (SV *callback=&PL_sv_undef) 1478aio_group (SV *callback=&PL_sv_undef)
1840 PROTOTYPE: ;$
1841 PPCODE: 1479 PPCODE:
1842{ 1480{
1843 dREQ; 1481 dREQ;
1844 1482
1845 req->type = REQ_GROUP; 1483 req->type = EIO_GROUP;
1846 1484
1847 req_send (req); 1485 req_submit (req);
1848 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1486 XPUSHs (req_sv (req, aio_grp_stash));
1849} 1487}
1850 1488
1851void 1489void
1852aio_nop (SV *callback=&PL_sv_undef) 1490aio_nop (SV *callback=&PL_sv_undef)
1491 ALIAS:
1492 aio_nop = EIO_NOP
1493 aio_sync = EIO_SYNC
1853 PPCODE: 1494 PPCODE:
1854{ 1495{
1855 dREQ; 1496 dREQ;
1856 1497
1857 req->type = REQ_NOP; 1498 req->type = ix;
1858 1499
1859 REQ_SEND; 1500 REQ_SEND;
1860} 1501}
1861 1502
1862int 1503int
1863aioreq_pri (int pri = 0) 1504aioreq_pri (int pri = 0)
1864 PROTOTYPE: ;$
1865 CODE: 1505 CODE:
1866 RETVAL = next_pri - PRI_BIAS; 1506 RETVAL = next_pri;
1867 if (items > 0) 1507 if (items > 0)
1868 { 1508 {
1869 if (pri < PRI_MIN) pri = PRI_MIN; 1509 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1870 if (pri > PRI_MAX) pri = PRI_MAX; 1510 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1871 next_pri = pri + PRI_BIAS; 1511 next_pri = pri;
1872 } 1512 }
1873 OUTPUT: 1513 OUTPUT:
1874 RETVAL 1514 RETVAL
1875 1515
1876void 1516void
1877aioreq_nice (int nice = 0) 1517aioreq_nice (int nice = 0)
1878 CODE: 1518 CODE:
1879 nice = next_pri - nice; 1519 nice = next_pri - nice;
1880 if (nice < PRI_MIN) nice = PRI_MIN; 1520 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1881 if (nice > PRI_MAX) nice = PRI_MAX; 1521 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1882 next_pri = nice + PRI_BIAS; 1522 next_pri = nice;
1883 1523
1884void 1524void
1885flush () 1525flush ()
1886 PROTOTYPE:
1887 CODE: 1526 CODE:
1888 while (nreqs) 1527 while (eio_nreqs ())
1889 { 1528 {
1890 poll_wait (); 1529 poll_wait ();
1891 poll_cb (); 1530 poll_cb ();
1892 } 1531 }
1893 1532
1894int 1533int
1895poll() 1534poll ()
1896 PROTOTYPE:
1897 CODE: 1535 CODE:
1898 poll_wait (); 1536 poll_wait ();
1899 RETVAL = poll_cb (); 1537 RETVAL = poll_cb ();
1900 OUTPUT: 1538 OUTPUT:
1901 RETVAL 1539 RETVAL
1902 1540
1903int 1541int
1904poll_fileno() 1542poll_fileno ()
1905 PROTOTYPE:
1906 CODE: 1543 CODE:
1907 RETVAL = respipe [0]; 1544 RETVAL = s_epipe_fd (&respipe);
1908 OUTPUT: 1545 OUTPUT:
1909 RETVAL 1546 RETVAL
1910 1547
1911int 1548int
1912poll_cb(...) 1549poll_cb (...)
1913 PROTOTYPE: 1550 PROTOTYPE:
1914 CODE: 1551 CODE:
1915 RETVAL = poll_cb (); 1552 RETVAL = poll_cb ();
1916 OUTPUT: 1553 OUTPUT:
1917 RETVAL 1554 RETVAL
1918 1555
1919void 1556void
1920poll_wait() 1557poll_wait ()
1921 PROTOTYPE:
1922 CODE: 1558 CODE:
1923 poll_wait (); 1559 poll_wait ();
1924 1560
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1961
1962int 1561int
1963nreqs() 1562nreqs ()
1964 PROTOTYPE:
1965 CODE: 1563 CODE:
1966 RETVAL = nreqs; 1564 RETVAL = eio_nreqs ();
1967 OUTPUT: 1565 OUTPUT:
1968 RETVAL 1566 RETVAL
1969 1567
1970int 1568int
1971nready() 1569nready ()
1972 PROTOTYPE:
1973 CODE: 1570 CODE:
1974 RETVAL = get_nready (); 1571 RETVAL = eio_nready ();
1975 OUTPUT: 1572 OUTPUT:
1976 RETVAL 1573 RETVAL
1977 1574
1978int 1575int
1979npending() 1576npending ()
1980 PROTOTYPE:
1981 CODE: 1577 CODE:
1982 RETVAL = get_npending (); 1578 RETVAL = eio_npending ();
1983 OUTPUT: 1579 OUTPUT:
1984 RETVAL 1580 RETVAL
1985 1581
1986int 1582int
1987nthreads() 1583nthreads ()
1988 PROTOTYPE:
1989 CODE: 1584 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1585 RETVAL = eio_nthreads ();
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT: 1586 OUTPUT:
1994 RETVAL 1587 RETVAL
1995 1588
1589int
1590fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1591 CODE:
1592 RETVAL = posix_fadvise (fh, offset, length, advice);
1593 OUTPUT:
1594 RETVAL
1595
1596IV
1597sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1598 CODE:
1599 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1600 OUTPUT:
1601 RETVAL
1602
1603void
1604mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1605 PPCODE:
1606 sv_unmagic (scalar, MMAP_MAGIC);
1607{
1608 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1609 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1610 if (addr == (void *)-1)
1611 XSRETURN_NO;
1612
1613 sv_force_normal (scalar);
1614
1615 /* we store the length in mg_obj, as namlen is I32 :/ */
1616 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1617 ->mg_obj = (SV *)length;
1618
1619 SvUPGRADE (scalar, SVt_PV); /* nop... */
1620
1621 if (!(prot & PROT_WRITE))
1622 SvREADONLY_on (scalar);
1623
1624 if (SvLEN (scalar))
1625 Safefree (SvPVX (scalar));
1626
1627 SvPVX (scalar) = (char *)addr;
1628 SvCUR_set (scalar, length);
1629 SvLEN_set (scalar, 0);
1630 SvPOK_only (scalar);
1631
1632 XSRETURN_YES;
1633}
1634
1635void
1636munmap (SV *scalar)
1637 CODE:
1638 sv_unmagic (scalar, MMAP_MAGIC);
1639
1640int
1641madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1642 ALIAS:
1643 mprotect = 1
1644 CODE:
1645{
1646 STRLEN svlen;
1647 void *addr = SvPVbyte (scalar, svlen);
1648 size_t len = SvUV (length);
1649
1650 if (offset < 0)
1651 offset += svlen;
1652
1653 if (offset < 0 || offset > svlen)
1654 croak ("offset outside of scalar");
1655
1656 if (!SvOK (length) || len + offset > svlen)
1657 len = svlen - offset;
1658
1659 addr = (void *)(((intptr_t)addr) + offset);
1660 eio_page_align (&addr, &len);
1661
1662 switch (ix)
1663 {
1664 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1665 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1666 }
1667}
1668 OUTPUT:
1669 RETVAL
1670
1671int
1672munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1673 CODE:
1674{
1675 STRLEN svlen;
1676 void *addr = SvPVbyte (scalar, svlen);
1677 size_t len = SvUV (length);
1678
1679 if (offset < 0)
1680 offset += svlen;
1681
1682 if (offset < 0 || offset > svlen)
1683 croak ("offset outside of scalar");
1684
1685 if (!SvOK (length) || len + offset > svlen)
1686 len = svlen - offset;
1687
1688 addr = (void *)(((intptr_t)addr) + offset);
1689 eio_page_align (&addr, &len);
1690#if _POSIX_MEMLOCK_RANGE
1691 RETVAL = munlock (addr, len);
1692#else
1693 RETVAL = ((errno = ENOSYS), -1);
1694#endif
1695}
1696 OUTPUT:
1697 RETVAL
1698
1699int
1700munlockall ()
1701 CODE:
1702#if _POSIX_MEMLOCK
1703 munlockall ();
1704#else
1705 RETVAL = -1;
1706 errno = ENOSYS;
1707#endif
1708 OUTPUT:
1709 RETVAL
1710
1711void _on_next_submit (SV *cb)
1712 CODE:
1713 SvREFCNT_dec (on_next_submit);
1714 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1715
1996PROTOTYPES: DISABLE 1716PROTOTYPES: DISABLE
1997 1717
1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1718MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1999 1719
2000void 1720void
2001cancel (aio_req_ornot req) 1721cancel (aio_req_ornot req)
2002 CODE: 1722 CODE:
2003 req_cancel (req); 1723 eio_cancel (req);
2004 1724
2005void 1725void
2006cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1726cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2007 CODE: 1727 PPCODE:
1728{
1729 if (GIMME_V != G_VOID)
1730 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1731
1732 if (items > 1)
1733 {
1734 SV *cb_cv =get_cb (callback);
1735
2008 SvREFCNT_dec (req->callback); 1736 SvREFCNT_dec (req->callback);
2009 req->callback = newSVsv (callback); 1737 req->callback = SvREFCNT_inc (cb_cv);
1738 }
1739}
2010 1740
2011MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1741MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2012 1742
2013void 1743void
2014add (aio_req grp, ...) 1744add (aio_req grp, ...)
2015 PPCODE: 1745 PPCODE:
2016{ 1746{
2017 int i; 1747 int i;
2018 aio_req req;
2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022 1748
2023 if (grp->int1 == 2) 1749 if (grp->int1 == 2)
2024 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1750 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2025 1751
2026 for (i = 1; i < items; ++i ) 1752 for (i = 1; i < items; ++i )
2027 { 1753 {
1754 aio_req req;
1755
2028 if (GIMME_V != G_VOID) 1756 if (GIMME_V != G_VOID)
2029 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1757 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2030 1758
2031 req = SvAIO_REQ (ST (i)); 1759 req = SvAIO_REQ (ST (i));
2032 1760
2033 if (req) 1761 if (req)
2034 { 1762 eio_grp_add (grp, req);
2035 ++grp->size;
2036 req->grp = grp;
2037
2038 req->grp_prev = 0;
2039 req->grp_next = grp->grp_first;
2040
2041 if (grp->grp_first)
2042 grp->grp_first->grp_prev = req;
2043
2044 grp->grp_first = req;
2045 }
2046 } 1763 }
2047} 1764}
2048 1765
2049void 1766void
2050cancel_subs (aio_req_ornot req) 1767cancel_subs (aio_req_ornot req)
… …
2059 AV *av; 1776 AV *av;
2060 1777
2061 grp->errorno = errno; 1778 grp->errorno = errno;
2062 1779
2063 av = newAV (); 1780 av = newAV ();
1781 av_extend (av, items - 1);
2064 1782
2065 for (i = 1; i < items; ++i ) 1783 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i))); 1784 av_push (av, newSVsv (ST (i)));
2067 1785
2068 SvREFCNT_dec (grp->sv1); 1786 SvREFCNT_dec (grp->sv1);
… …
2075 grp->errorno = errorno; 1793 grp->errorno = errorno;
2076 1794
2077void 1795void
2078limit (aio_req grp, int limit) 1796limit (aio_req grp, int limit)
2079 CODE: 1797 CODE:
2080 grp->int2 = limit; 1798 eio_grp_limit (grp, limit);
2081 aio_grp_feed (grp);
2082 1799
2083void 1800void
2084feed (aio_req grp, SV *callback=&PL_sv_undef) 1801feed (aio_req grp, SV *callback=&PL_sv_undef)
2085 CODE: 1802 CODE:
2086{ 1803{
2087 SvREFCNT_dec (grp->sv2); 1804 SvREFCNT_dec (grp->sv2);
2088 grp->sv2 = newSVsv (callback); 1805 grp->sv2 = newSVsv (callback);
1806 grp->feed = aio_grp_feed;
2089 1807
2090 if (grp->int2 <= 0) 1808 if (grp->int2 <= 0)
2091 grp->int2 = 2; 1809 grp->int2 = 2;
2092 1810
2093 aio_grp_feed (grp); 1811 eio_grp_limit (grp, grp->int2);
2094} 1812}
2095 1813

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