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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.22 by root, Tue Aug 16 22:22:18 2005 UTC vs.
Revision 1.239 by root, Tue Feb 23 19:42:43 2016 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#include "schmorp.h"
9 10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
10#include <sys/types.h> 14#include <sys/types.h>
11#include <sys/stat.h> 15#include <sys/stat.h>
12
13#include <unistd.h> 16#include <limits.h>
14#include <fcntl.h> 17#include <fcntl.h>
15#include <signal.h>
16#include <sched.h> 18#include <sched.h>
17 19
18#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
19 23
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24/* the incompetent fool that created musl keeps __linux__, refuses
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25 * to implement any linux standard apis, and also has no way to test
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 26 * for his broken iplementation. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
23 36
24#if __ia64 37/* perl namespace pollution */
25# define STACKSIZE 65536 38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79
80 #define EIO_STRUCT_STAT struct _stati64
81 #define EIO_STRUCT_STATI64
82
26#else 83#else
27# define STACKSIZE 4096 84
85 #include <sys/time.h>
86 #include <sys/select.h>
87 #include <unistd.h>
88 #include <utime.h>
89 #include <signal.h>
90
91 #define EIO_STRUCT_STAT Stat_t
92
93#endif
94
95/*****************************************************************************/
96
97#if __GNUC__ >= 3
98# define expect(expr,value) __builtin_expect ((expr),(value))
99#else
100# define expect(expr,value) (expr)
101#endif
102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
144# else
145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
28#endif 146# endif
147#endif
148
149/* defines all sorts of constants to 0 unless they are already defined */
150/* also provides const_iv_ and const_niv_ macros for them */
151#include "def0.h"
152
153#ifndef makedev
154# define makedev(maj,min) (((maj) << 8) | (min))
155#endif
156#ifndef major
157# define major(dev) ((dev) >> 8)
158#endif
159#ifndef minor
160# define minor(dev) ((dev) & 0xff)
161#endif
162
163#if PAGESIZE <= 0
164# define PAGESIZE sysconf (_SC_PAGESIZE)
165#endif
166
167/*****************************************************************************/
168
169static void
170fiemap (eio_req *req)
171{
172 req->result = -1;
173
174#if HAVE_FIEMAP
175 /* assume some c99 */
176 struct fiemap *fiemap = 0;
177 size_t end_offset;
178 int count = req->int3;
179
180 req->flags |= EIO_FLAG_PTR1_FREE;
181
182 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
183 /* increase in 3.5kb steps */
184 if (count < 0)
185 count = 8;
186
187 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
188 errno = ENOMEM;
189 if (!fiemap)
190 return;
191
192 req->ptr1 = fiemap;
193
194 fiemap->fm_start = req->offs;
195 fiemap->fm_length = req->size;
196 fiemap->fm_flags = req->int2;
197 fiemap->fm_extent_count = count;
198
199 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return;
201
202 if (req->int3 >= 0 /* not autosizing */
203 || !fiemap->fm_mapped_extents /* no more extents */
204 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205 goto done;
206
207 /* else we have to loop -
208 * it would be tempting (actually I tried that first) to just query the
209 * number of extents needed, but linux often feels like not returning all
210 * extents, without telling us it left any out. this complicates
211 * this quite a bit.
212 */
213
214 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
215
216 for (;;)
217 {
218 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
219 char scratch[3072];
220 struct fiemap *incmap = (struct fiemap *)scratch;
221
222 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
223 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
224 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
225 incmap->fm_flags = fiemap->fm_flags;
226 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
227
228 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
229 return;
230
231 if (!incmap->fm_mapped_extents)
232 goto done;
233
234 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
235 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
236 errno = ENOMEM;
237 if (!fiemap)
238 return;
239
240 req->ptr1 = fiemap;
241
242 for (count = 0; count < incmap->fm_mapped_extents; ++count)
243 {
244 struct fiemap_extent *e = incmap->fm_extents + count;
245
246 if (e->fe_logical + e->fe_length >= end_offset)
247 goto done;
248
249 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
250
251 if (e->fe_flags & FIEMAP_EXTENT_LAST)
252 goto done;
253
254 }
255 }
256
257done:
258 req->result = 0;
259
260#else
261 errno = ENOSYS;
262#endif
263}
264
265/*****************************************************************************/
29 266
30enum { 267enum {
31 REQ_QUIT, 268 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
32 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR, REQ_SYMLINK,
37 REQ_SYMLINK,
38}; 269};
39 270
40typedef struct aio_cb {
41 struct aio_cb *volatile next;
42
43 int type;
44
45 int fd;
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req; 271typedef eio_req *aio_req;
272typedef eio_req *aio_req_ornot;
273typedef eio_wd aio_wd;
59 274
60static int started; 275static SV *on_next_submit;
61static volatile int nreqs; 276static int next_pri = EIO_PRI_DEFAULT;
62static int max_outstanding = 1<<30; 277static int max_outstanding;
63static int respipe [2];
64 278
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 279static s_epipe respipe;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
68static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
69 280
70static volatile aio_req reqs, reqe; /* queue start, queue end */ 281static void req_destroy (aio_req req);
71static volatile aio_req ress, rese; /* queue start, queue end */ 282static void req_cancel (aio_req req);
72 283
73static void 284static void
74poll_wait () 285want_poll (void)
75{ 286{
76 if (nreqs && !ress) 287 /* write a dummy byte to the pipe so fh becomes ready */
288 s_epipe_signal (&respipe);
289}
290
291static void
292done_poll (void)
293{
294 /* read any signals sent by the worker threads */
295 s_epipe_drain (&respipe);
296}
297
298/* must be called at most once */
299static SV *
300req_sv (aio_req req, HV *stash)
301{
302 if (!req->self)
77 { 303 {
78 fd_set rfd; 304 req->self = (SV *)newHV ();
79 FD_ZERO(&rfd); 305 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
80 FD_SET(respipe [0], &rfd);
81
82 select (respipe [0] + 1, &rfd, 0, 0, 0);
83 } 306 }
307
308 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
309}
310
311static SV *
312newSVaio_wd (aio_wd wd)
313{
314 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315}
316
317static aio_req
318SvAIO_REQ (SV *sv)
319{
320 MAGIC *mg;
321
322 if (!SvROK (sv)
323 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
324 || (SvSTASH (SvRV (sv)) != aio_grp_stash
325 && SvSTASH (SvRV (sv)) != aio_req_stash
326 && !sv_derived_from (sv, "IO::AIO::REQ")))
327 croak ("object of class IO::AIO::REQ expected");
328
329 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
330
331 return mg ? (aio_req)mg->mg_ptr : 0;
332}
333
334static aio_wd
335SvAIO_WD (SV *sv)
336{
337 if (!SvROK (sv)
338 || SvTYPE (SvRV (sv)) != SVt_PVMG
339 || SvSTASH (SvRV (sv)) != aio_wd_stash)
340 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
341
342 return (aio_wd)(long)SvIVX (SvRV (sv));
343}
344
345static SV *
346newmortalFH (int fd, int flags)
347{
348 if (fd < 0)
349 return &PL_sv_undef;
350
351 GV *gv = (GV *)sv_newmortal ();
352 char sym[64];
353 int symlen;
354
355 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
356 gv_init (gv, aio_stash, sym, symlen, 0);
357
358 symlen = snprintf (
359 sym,
360 sizeof (sym),
361 "%s&=%d",
362 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
363 fd
364 );
365
366 return do_open (gv, sym, symlen, 0, 0, 0, 0)
367 ? (SV *)gv : &PL_sv_undef;
368}
369
370static void
371aio_grp_feed (aio_req grp)
372{
373 if (grp->sv2 && SvOK (grp->sv2))
374 {
375 dSP;
376
377 ENTER;
378 SAVETMPS;
379 PUSHMARK (SP);
380 XPUSHs (req_sv (grp, aio_grp_stash));
381 PUTBACK;
382 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
383 SPAGAIN;
384 FREETMPS;
385 LEAVE;
386 }
387}
388
389static void
390req_submit (eio_req *req)
391{
392 eio_submit (req);
393
394 if (expect_false (on_next_submit))
395 {
396 dSP;
397 SV *cb = sv_2mortal (on_next_submit);
398
399 on_next_submit = 0;
400
401 PUSHMARK (SP);
402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
404 }
84} 405}
85 406
86static int 407static int
87poll_cb () 408req_invoke (eio_req *req)
88{ 409{
89 dSP; 410 if (req->flags & FLAG_SV2_RO_OFF)
90 int count = 0; 411 SvREADONLY_off (req->sv2);
91 aio_req req, prv;
92 412
93 pthread_mutex_lock (&reslock); 413 if (!EIO_CANCELLED (req) && req->callback)
94
95 {
96 /* read any signals sent by the worker threads */
97 char buf [32];
98 while (read (respipe [0], buf, 32) == 32)
99 ;
100 }
101
102 req = ress;
103 ress = rese = 0;
104
105 pthread_mutex_unlock (&reslock);
106
107 while (req)
108 { 414 {
109 nreqs--; 415 dSP;
416 static SV *sv_result_cache; /* caches the result integer SV */
417 SV *sv_result;
110 418
111 if (req->type == REQ_QUIT) 419 ENTER;
112 started--; 420 SAVETMPS;
113 else 421 PUSHMARK (SP);
422 EXTEND (SP, 1);
423
424 /* do not recreate the result IV from scratch each time */
425 if (expect_true (sv_result_cache))
114 { 426 {
115 int errorno = errno; 427 sv_result = sv_result_cache; sv_result_cache = 0;
116 errno = req->errorno; 428 SvIV_set (sv_result, req->result);
117 429 SvIOK_only (sv_result);
118 if (req->type == REQ_READ)
119 SvCUR_set (req->data, req->dataoffset
120 + req->result > 0 ? req->result : 0);
121
122 if (req->data)
123 SvREFCNT_dec (req->data);
124
125 if (req->fh)
126 SvREFCNT_dec (req->fh);
127
128 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
129 {
130 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
131 PL_laststatval = req->result;
132 PL_statcache = *(req->statdata);
133
134 Safefree (req->statdata);
135 }
136
137 ENTER;
138 PUSHMARK (SP);
139 XPUSHs (sv_2mortal (newSViv (req->result)));
140
141 if (req->type == REQ_OPEN)
142 {
143 /* convert fd to fh */
144 SV *fh;
145
146 PUTBACK;
147 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
148 SPAGAIN;
149
150 fh = SvREFCNT_inc (POPs);
151
152 PUSHMARK (SP);
153 XPUSHs (sv_2mortal (fh));
154 }
155
156 if (SvOK (req->callback))
157 {
158 PUTBACK;
159 call_sv (req->callback, G_VOID | G_EVAL);
160 SPAGAIN;
161 }
162
163 LEAVE;
164
165 if (req->callback)
166 SvREFCNT_dec (req->callback);
167
168 errno = errorno;
169 count++;
170 }
171
172 prv = req;
173 req = req->next;
174 Safefree (prv);
175
176 /* TODO: croak on errors? */
177 }
178
179 return count;
180}
181
182static void *aio_proc(void *arg);
183
184static void
185start_thread (void)
186{
187 sigset_t fullsigset, oldsigset;
188 pthread_t tid;
189 pthread_attr_t attr;
190
191 pthread_attr_init (&attr);
192 pthread_attr_setstacksize (&attr, STACKSIZE);
193 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
194
195 sigfillset (&fullsigset);
196 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
197
198 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
199 started++;
200
201 sigprocmask (SIG_SETMASK, &oldsigset, 0);
202}
203
204static void
205send_req (aio_req req)
206{
207 nreqs++;
208
209 pthread_mutex_lock (&reqlock);
210
211 req->next = 0;
212
213 if (reqe)
214 {
215 reqe->next = req;
216 reqe = req;
217 }
218 else
219 reqe = reqs = req;
220
221 pthread_cond_signal (&reqwait);
222 pthread_mutex_unlock (&reqlock);
223
224 while (nreqs > max_outstanding)
225 {
226 poll_wait ();
227 poll_cb ();
228 }
229}
230
231static void
232end_thread (void)
233{
234 aio_req req;
235 New (0, req, 1, aio_cb);
236 req->type = REQ_QUIT;
237
238 send_req (req);
239}
240
241
242static void min_parallel (int nthreads)
243{
244 while (nthreads > started)
245 start_thread ();
246}
247
248static void max_parallel (int nthreads)
249{
250 int cur = started;
251 while (cur > nthreads)
252 {
253 end_thread ();
254 cur--;
255 }
256
257 while (started > nthreads)
258 {
259 poll_wait ();
260 poll_cb ();
261 }
262}
263
264static int fork_started;
265
266static void atfork_prepare (void)
267{
268 pthread_mutex_lock (&frklock);
269
270 fork_started = started;
271
272 for (;;) {
273 while (nreqs)
274 {
275 poll_wait ();
276 poll_cb ();
277 }
278
279 max_parallel (0);
280
281 pthread_mutex_lock (&reqlock);
282
283 if (!nreqs && !started)
284 break;
285
286 pthread_mutex_unlock (&reqlock);
287
288 min_parallel (fork_started);
289 }
290
291 pthread_mutex_lock (&reslock);
292
293 assert (!started);
294 assert (!nreqs);
295 assert (!reqs && !reqe);
296 assert (!ress && !rese);
297}
298
299static void atfork_parent (void)
300{
301 pthread_mutex_unlock (&reslock);
302 min_parallel (fork_started);
303 pthread_mutex_unlock (&reqlock);
304 pthread_mutex_unlock (&frklock);
305}
306
307static void atfork_child (void)
308{
309 reqs = reqe = 0;
310
311 atfork_parent ();
312}
313
314/*****************************************************************************/
315/* work around various missing functions */
316
317#if !HAVE_PREADWRITE
318# define pread aio_pread
319# define pwrite aio_pwrite
320
321/*
322 * make our pread/pwrite safe against themselves, but not against
323 * normal read/write by using a mutex. slows down execution a lot,
324 * but that's your problem, not mine.
325 */
326static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
327
328static ssize_t
329pread (int fd, void *buf, size_t count, off_t offset)
330{
331 ssize_t res;
332 off_t ooffset;
333
334 pthread_mutex_lock (&iolock);
335 ooffset = lseek (fd, 0, SEEK_CUR);
336 lseek (fd, offset, SEEK_SET);
337 res = read (fd, buf, count);
338 lseek (fd, ooffset, SEEK_SET);
339 pthread_mutex_unlock (&iolock);
340
341 return res;
342}
343
344static ssize_t
345pwrite (int fd, void *buf, size_t count, off_t offset)
346{
347 ssize_t res;
348 off_t ooffset;
349
350 pthread_mutex_lock (&iolock);
351 ooffset = lseek (fd, 0, SEEK_CUR);
352 lseek (fd, offset, SEEK_SET);
353 res = write (fd, buf, count);
354 lseek (fd, offset, SEEK_SET);
355 pthread_mutex_unlock (&iolock);
356
357 return res;
358}
359#endif
360
361#if !HAVE_FDATASYNC
362# define fdatasync fsync
363#endif
364
365#if !HAVE_READAHEAD
366# define readahead aio_readahead
367
368static char readahead_buf[4096];
369
370static ssize_t
371readahead (int fd, off_t offset, size_t count)
372{
373 while (count > 0)
374 {
375 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
376
377 pread (fd, readahead_buf, len, offset);
378 offset += len;
379 count -= len;
380 }
381
382 errno = 0;
383}
384#endif
385
386/*****************************************************************************/
387
388static void *
389aio_proc (void *thr_arg)
390{
391 aio_req req;
392 int type;
393
394 do
395 {
396 pthread_mutex_lock (&reqlock);
397
398 for (;;)
399 {
400 req = reqs;
401
402 if (reqs)
403 {
404 reqs = reqs->next;
405 if (!reqs) reqe = 0;
406 }
407
408 if (req)
409 break;
410
411 pthread_cond_wait (&reqwait, &reqlock);
412 }
413
414 pthread_mutex_unlock (&reqlock);
415
416 errno = 0; /* strictly unnecessary */
417
418 type = req->type;
419
420 switch (type)
421 {
422 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
423 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
424
425 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
426
427 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
428 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
429 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
430
431 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
432 case REQ_CLOSE: req->result = close (req->fd); break;
433 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
434 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
435 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
436
437 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
438 case REQ_FSYNC: req->result = fsync (req->fd); break;
439
440 case REQ_QUIT:
441 break;
442
443 default:
444 req->result = ENOSYS;
445 break;
446 }
447
448 req->errorno = errno;
449
450 pthread_mutex_lock (&reslock);
451
452 req->next = 0;
453
454 if (rese)
455 {
456 rese->next = req;
457 rese = req;
458 } 430 }
459 else 431 else
460 { 432 {
461 rese = ress = req; 433 sv_result = newSViv (req->result);
462 434 SvREADONLY_on (sv_result);
463 /* write a dummy byte to the pipe so fh becomes ready */
464 write (respipe [1], &respipe, 1);
465 } 435 }
466 436
467 pthread_mutex_unlock (&reslock); 437 switch (req->type)
438 {
439 case EIO_WD_OPEN:
440 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
441 break;
442
443 case EIO_READDIR:
444 {
445 SV *rv = &PL_sv_undef;
446
447 if (req->result >= 0)
448 {
449 int i;
450 char *names = (char *)req->ptr2;
451 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
452 AV *av = newAV ();
453
454 av_extend (av, req->result - 1);
455
456 for (i = 0; i < req->result; ++i)
457 {
458 if (req->int1 & EIO_READDIR_DENTS)
459 {
460 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
461
462 if (req->int1 & EIO_READDIR_CUSTOM2)
463 {
464 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
465 AV *avent = newAV ();
466
467 av_extend (avent, 2);
468
469 if (!sv_type [ent->type])
470 {
471 sv_type [ent->type] = newSViv (ent->type);
472 SvREADONLY_on (sv_type [ent->type]);
473 }
474
475 av_store (avent, 0, namesv);
476 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
477 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
478
479 av_store (av, i, newRV_noinc ((SV *)avent));
480 }
481 else
482 av_store (av, i, namesv);
483
484 ++ent;
485 }
486 else
487 {
488 SV *name = newSVpv (names, 0);
489 av_store (av, i, name);
490 names += SvCUR (name) + 1;
491 }
492 }
493
494 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 }
496
497 PUSHs (rv);
498
499 if (req->int1 & EIO_READDIR_CUSTOM1)
500 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
501 }
502 break;
503
504 case EIO_OPEN:
505 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
506 break;
507
508 case EIO_STATVFS:
509 case EIO_FSTATVFS:
510 {
511 SV *rv = &PL_sv_undef;
512
513#ifndef _WIN32
514 if (req->result >= 0)
515 {
516 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
517 HV *hv = newHV ();
518 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
519 * chooses to make it a struct.
520 */
521 unsigned long fsid = 0;
522 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
523
524 rv = sv_2mortal (newRV_noinc ((SV *)hv));
525
526 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
527 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
528 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
529 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
530 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
531 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
532 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
533 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
534 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
535 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
536 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
537 }
538#endif
539
540 PUSHs (rv);
541 }
542
543 break;
544
545 case EIO_GROUP:
546 req->int1 = 2; /* mark group as finished */
547
548 if (req->sv1)
549 {
550 int i;
551 AV *av = (AV *)req->sv1;
552
553 EXTEND (SP, AvFILL (av) + 1);
554 for (i = 0; i <= AvFILL (av); ++i)
555 PUSHs (*av_fetch (av, i, 0));
556 }
557 break;
558
559 case EIO_NOP:
560 case EIO_BUSY:
561 break;
562
563 case EIO_READLINK:
564 case EIO_REALPATH:
565 if (req->result > 0)
566 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
567 break;
568
569 case EIO_STAT:
570 case EIO_LSTAT:
571 case EIO_FSTAT:
572 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
573
574 if (!(PL_laststatval = req->result))
575 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
576 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
577
578 PUSHs (sv_result);
579 break;
580
581 case EIO_SEEK:
582 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
583 break;
584
585 case EIO_READ:
586 {
587 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
588 *SvEND (req->sv2) = 0;
589 SvPOK_only (req->sv2);
590 SvSETMAGIC (req->sv2);
591 PUSHs (sv_result);
592 }
593 break;
594
595 case EIO_CUSTOM:
596 if (req->feed == fiemap)
597 {
598#if HAVE_FIEMAP
599 if (!req->result)
600 {
601 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
602
603 if (fiemap->fm_extent_count)
604 {
605 AV *av = newAV ();
606 int i;
607
608 while (fiemap->fm_mapped_extents)
609 {
610 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
611 AV *ext_av = newAV ();
612
613 av_store (ext_av, 3, newSVuv (extent->fe_flags));
614 av_store (ext_av, 2, newSVval64 (extent->fe_length));
615 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
616 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
617
618 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
619 }
620
621 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
622 }
623 else
624 {
625 SvIV_set (sv_result, fiemap->fm_mapped_extents);
626 PUSHs (sv_result);
627 }
628 }
629#endif
630 }
631 else
632 PUSHs (sv_result);
633 break;
634
635 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
636 if (req->result > 0)
637 SvIV_set (sv_result, 0);
638 /* FALLTHROUGH */
639
640 default:
641 PUSHs (sv_result);
642 break;
643 }
644
645 errno = req->errorno;
646
647 PUTBACK;
648 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
649 SPAGAIN;
650
651 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
652 SvREFCNT_dec (sv_result);
653 else
654 sv_result_cache = sv_result;
655
656 FREETMPS;
657 LEAVE;
658
659 PUTBACK;
468 } 660 }
469 while (type != REQ_QUIT); 661
662 return !!SvTRUE (ERRSV);
663}
664
665static void
666req_destroy (aio_req req)
667{
668 if (req->self)
669 {
670 sv_unmagic (req->self, PERL_MAGIC_ext);
671 SvREFCNT_dec (req->self);
672 }
673
674 SvREFCNT_dec (req->sv1);
675 SvREFCNT_dec (req->sv2);
676 SvREFCNT_dec (req->sv3);
677 SvREFCNT_dec (req->sv4);
678 SvREFCNT_dec (req->callback);
679
680 free (req);
681}
682
683static void
684req_cancel_subs (aio_req grp)
685{
686 if (grp->type != EIO_GROUP)
687 return;
688
689 SvREFCNT_dec (grp->sv2);
690 grp->sv2 = 0;
691
692 eio_grp_cancel (grp);
693}
694
695static void ecb_cold
696create_respipe (void)
697{
698 if (s_epipe_renew (&respipe))
699 croak ("IO::AIO: unable to initialize result pipe");
700}
701
702static void
703poll_wait (void)
704{
705 while (eio_nreqs ())
706 {
707 int size;
708
709 X_LOCK (EIO_POOL->reslock);
710 size = EIO_POOL->res_queue.size;
711 X_UNLOCK (EIO_POOL->reslock);
712
713 if (size)
714 return;
715
716 etp_maybe_start_thread (EIO_POOL);
717
718 s_epipe_wait (&respipe);
719 }
720}
721
722static int
723poll_cb (void)
724{
725 for (;;)
726 {
727 int res = eio_poll ();
728
729 if (res > 0)
730 croak (0);
731
732 if (!max_outstanding || max_outstanding > eio_nreqs ())
733 return res;
734
735 poll_wait ();
736 }
737}
738
739static void ecb_cold
740reinit (void)
741{
742 create_respipe ();
743
744 if (eio_init (want_poll, done_poll) < 0)
745 croak ("IO::AIO: unable to initialise eio library");
746}
747
748/*****************************************************************************/
749
750#if !_POSIX_MAPPED_FILES
751# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752# define munmap(addr,length) EIO_ENOSYS ()
753#endif
754
755#if !_POSIX_MEMORY_PROTECTION
756# define mprotect(addr,len,prot) EIO_ENOSYS ()
757#endif
758
759#define MMAP_MAGIC PERL_MAGIC_ext
760
761static int ecb_cold
762mmap_free (pTHX_ SV *sv, MAGIC *mg)
763{
764 int old_errno = errno;
765 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766 errno = old_errno;
767
768 mg->mg_obj = 0; /* just in case */
769
770 SvREADONLY_off (sv);
771
772 if (SvPVX (sv) != mg->mg_ptr)
773 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775 SvCUR_set (sv, 0);
776 SvPVX (sv) = 0;
777 SvOK_off (sv);
470 778
471 return 0; 779 return 0;
472} 780}
473 781
782static MGVTBL mmap_vtbl = {
783 0, 0, 0, 0, mmap_free
784};
785
786/*****************************************************************************/
787
788static SV *
789get_cb (SV *cb_sv)
790{
791 SvGETMAGIC (cb_sv);
792 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793}
794
795static aio_req ecb_noinline
796dreq (SV *callback)
797{
798 SV *cb_cv;
799 aio_req req;
800 int req_pri = next_pri;
801 next_pri = EIO_PRI_DEFAULT;
802
803 cb_cv = get_cb (callback);
804
805 req = calloc (sizeof (*req), 1);
806 if (!req)
807 croak ("out of memory during eio_req allocation");
808
809 req->callback = SvREFCNT_inc (cb_cv);
810 req->pri = req_pri;
811
812 return req;
813}
814
474#define dREQ \ 815#define dREQ \
475 aio_req req; \ 816 aio_req req = dreq (callback); \
817
818#define REQ_SEND \
819 PUTBACK; \
820 req_submit (req); \
821 SPAGAIN; \
476 \ 822 \
477 if (SvOK (callback) && !SvROK (callback)) \ 823 if (GIMME_V != G_VOID) \
478 croak ("clalback must be undef or of reference type"); \ 824 XPUSHs (req_sv (req, aio_req_stash));
479 \ 825
480 Newz (0, req, 1, aio_cb); \ 826ecb_inline void
481 if (!req) \ 827req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
482 croak ("out of memory during aio_req allocation"); \ 828{
483 \ 829 if (expect_false (SvROK (path)))
484 req->callback = SvREFCNT_inc (callback); 830 {
485 831 SV *rv = SvRV (path);
832 SV *wdob;
833
834 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
835 {
836 path = AvARRAY (rv)[1];
837 wdob = AvARRAY (rv)[0];
838
839 if (SvOK (wdob))
840 {
841 *wd = SvAIO_WD (wdob);
842 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
843 }
844 else
845 *wd = EIO_INVALID_WD;
846 }
847 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
848 {
849 *wd = (aio_wd)(long)SvIVX (rv);
850 *wdsv = SvREFCNT_inc_NN (rv);
851 *ptr = ".";
852 return; /* path set to "." */
853 }
854 else
855 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
856 }
857
858 *pathsv = newSVsv (path);
859 *ptr = SvPVbyte_nolen (*pathsv);
860}
861
862static void ecb_noinline
863req_set_path1 (aio_req req, SV *path)
864{
865 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
866}
867
868static void ecb_noinline
869req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
870{
871 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
872
873 switch (SvTYPE (rv))
874 {
875 case SVt_PVIO:
876 case SVt_PVLV:
877 case SVt_PVGV:
878 req->type = type_fh;
879 req->sv1 = newSVsv (fh_or_path);
880 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
881 break;
882
883 default:
884 req->type = type_path;
885 req_set_path1 (req, fh_or_path);
886 break;
887 }
888}
889
890XS(boot_IO__AIO) ecb_cold;
891
486MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
487 893
488PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
489 895
490BOOT: 896BOOT:
491{ 897{
492 if (pipe (respipe)) 898 static const struct {
493 croak ("unable to initialize result pipe"); 899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
494 905
495 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 906 /* you have to re-run ./gendef0 after adding/removing any constants here */
496 croak ("cannot set result pipe to nonblocking mode"); 907 /* the first block can be undef if missing */
908 const_iv (ENOSYS)
909 const_iv (EXDEV)
910 const_iv (EBADR)
497 911
498 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 912 /* for lseek */
499 croak ("cannot set result pipe to nonblocking mode"); 913 const_iv (SEEK_DATA)
914 const_iv (SEEK_HOLE)
500 915
501 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 916 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
502} 917 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
918 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
919 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
920 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
921 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
503 922
923 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
924 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
925 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928
929 /* the second block will be 0 when missing */
930 const_iv (O_RDONLY)
931 const_iv (O_WRONLY)
932 const_iv (O_RDWR)
933 const_iv (O_CREAT)
934 const_iv (O_TRUNC)
935 const_iv (O_EXCL)
936 const_iv (O_APPEND)
937
938 const_iv (O_ASYNC)
939 const_iv (O_DIRECT)
940 const_iv (O_NOATIME)
941
942 const_iv (O_CLOEXEC)
943 const_iv (O_NOCTTY)
944 const_iv (O_NOFOLLOW)
945 const_iv (O_NONBLOCK)
946 const_iv (O_EXEC)
947 const_iv (O_SEARCH)
948 const_iv (O_DIRECTORY)
949 const_iv (O_DSYNC)
950 const_iv (O_RSYNC)
951 const_iv (O_SYNC)
952 const_iv (O_PATH)
953 const_iv (O_TMPFILE)
954 const_iv (O_TTY_INIT)
955
956 const_iv (S_IFIFO)
957 const_iv (S_IFCHR)
958 const_iv (S_IFBLK)
959 const_iv (S_IFLNK)
960 const_iv (S_IFREG)
961 const_iv (S_IFDIR)
962 const_iv (S_IFWHT)
963 const_iv (S_IFSOCK)
964 const_iv (S_IFMT)
965
966 const_iv (ST_RDONLY)
967 const_iv (ST_NOSUID)
968 const_iv (ST_NODEV)
969 const_iv (ST_NOEXEC)
970 const_iv (ST_SYNCHRONOUS)
971 const_iv (ST_MANDLOCK)
972 const_iv (ST_WRITE)
973 const_iv (ST_APPEND)
974 const_iv (ST_IMMUTABLE)
975 const_iv (ST_NOATIME)
976 const_iv (ST_NODIRATIME)
977 const_iv (ST_RELATIME)
978
979 const_iv (PROT_NONE)
980 const_iv (PROT_EXEC)
981 const_iv (PROT_READ)
982 const_iv (PROT_WRITE)
983
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_FIXED)
987 const_iv (MAP_ANONYMOUS)
988
989 /* linuxish */
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994 const_iv (MAP_GROWSDOWN)
995 const_iv (MAP_32BIT)
996 const_iv (MAP_HUGETLB)
997 const_iv (MAP_STACK)
998
999 const_iv (FIEMAP_FLAG_SYNC)
1000 const_iv (FIEMAP_FLAG_XATTR)
1001 const_iv (FIEMAP_FLAGS_COMPAT)
1002 const_iv (FIEMAP_EXTENT_LAST)
1003 const_iv (FIEMAP_EXTENT_UNKNOWN)
1004 const_iv (FIEMAP_EXTENT_DELALLOC)
1005 const_iv (FIEMAP_EXTENT_ENCODED)
1006 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1007 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1008 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1009 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1010 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1011 const_iv (FIEMAP_EXTENT_MERGED)
1012 const_iv (FIEMAP_EXTENT_SHARED)
1013
1014 const_iv (SPLICE_F_MOVE)
1015 const_iv (SPLICE_F_NONBLOCK)
1016 const_iv (SPLICE_F_MORE)
1017 const_iv (SPLICE_F_GIFT)
1018
1019 /* these are libeio constants, and are independent of gendef0 */
1020 const_eio (SEEK_SET)
1021 const_eio (SEEK_CUR)
1022 const_eio (SEEK_END)
1023
1024 const_eio (MCL_FUTURE)
1025 const_eio (MCL_CURRENT)
1026
1027 const_eio (MS_ASYNC)
1028 const_eio (MS_INVALIDATE)
1029 const_eio (MS_SYNC)
1030
1031 const_eio (MT_MODIFY)
1032
1033 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1034 const_eio (SYNC_FILE_RANGE_WRITE)
1035 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1036
1037 const_eio (FALLOC_FL_KEEP_SIZE)
1038 const_eio (FALLOC_FL_PUNCH_HOLE)
1039 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040 const_eio (FALLOC_FL_ZERO_RANGE)
1041
1042 const_eio (READDIR_DENTS)
1043 const_eio (READDIR_DIRS_FIRST)
1044 const_eio (READDIR_STAT_ORDER)
1045 const_eio (READDIR_FOUND_UNKNOWN)
1046
1047 const_eio (DT_UNKNOWN)
1048 const_eio (DT_FIFO)
1049 const_eio (DT_CHR)
1050 const_eio (DT_DIR)
1051 const_eio (DT_BLK)
1052 const_eio (DT_REG)
1053 const_eio (DT_LNK)
1054 const_eio (DT_SOCK)
1055 const_eio (DT_WHT)
1056 };
1057
1058 aio_stash = gv_stashpv ("IO::AIO" , 1);
1059 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1060 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1061 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1062
1063 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1064 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1065
1066 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1067
1068 reinit ();
1069}
1070
504void 1071void
505min_parallel(nthreads) 1072reinit ()
506 int nthreads 1073 PROTOTYPE:
1074
1075void
1076max_poll_reqs (unsigned int nreqs)
507 PROTOTYPE: $ 1077 PROTOTYPE: $
1078 CODE:
1079 eio_set_max_poll_reqs (nreqs);
508 1080
509void 1081void
510max_parallel(nthreads) 1082max_poll_time (double nseconds)
511 int nthreads
512 PROTOTYPE: $ 1083 PROTOTYPE: $
513
514int
515max_outstanding(nreqs)
516 int nreqs
517 PROTOTYPE: $
518 CODE: 1084 CODE:
519 RETVAL = max_outstanding; 1085 eio_set_max_poll_time (nseconds);
1086
1087void
1088min_parallel (unsigned int nthreads)
1089 PROTOTYPE: $
1090 CODE:
1091 eio_set_min_parallel (nthreads);
1092
1093void
1094max_parallel (unsigned int nthreads)
1095 PROTOTYPE: $
1096 CODE:
1097 eio_set_max_parallel (nthreads);
1098
1099void
1100max_idle (unsigned int nthreads)
1101 PROTOTYPE: $
1102 CODE:
1103 eio_set_max_idle (nthreads);
1104
1105void
1106idle_timeout (unsigned int seconds)
1107 PROTOTYPE: $
1108 CODE:
1109 eio_set_idle_timeout (seconds);
1110
1111void
1112max_outstanding (unsigned int maxreqs)
1113 PROTOTYPE: $
1114 CODE:
520 max_outstanding = nreqs; 1115 max_outstanding = maxreqs;
521 1116
522void 1117void
523aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1118aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
524 SV * pathname
525 int flags
526 int mode
527 SV * callback
528 PROTOTYPE: $$$;$
529 CODE: 1119 PPCODE:
530{ 1120{
531 dREQ; 1121 dREQ;
532 1122
1123 req->type = EIO_WD_OPEN;
1124 req_set_path1 (req, pathname);
1125
1126 REQ_SEND;
1127}
1128
1129void
1130aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1131 PPCODE:
1132{
1133 dREQ;
1134
533 req->type = REQ_OPEN; 1135 req->type = EIO_OPEN;
534 req->data = newSVsv (pathname); 1136 req_set_path1 (req, pathname);
535 req->dataptr = SvPVbyte_nolen (req->data);
536 req->fd = flags; 1137 req->int1 = flags;
537 req->mode = mode; 1138 req->int2 = mode;
538 1139
539 send_req (req); 1140 REQ_SEND;
540} 1141}
541 1142
542void 1143void
543aio_close(fh,callback=&PL_sv_undef) 1144aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
544 SV * fh
545 SV * callback
546 PROTOTYPE: $;$
547 ALIAS: 1145 ALIAS:
548 aio_close = REQ_CLOSE
549 aio_fsync = REQ_FSYNC 1146 aio_fsync = EIO_FSYNC
550 aio_fdatasync = REQ_FDATASYNC 1147 aio_fdatasync = EIO_FDATASYNC
1148 aio_syncfs = EIO_SYNCFS
551 CODE: 1149 PPCODE:
552{ 1150{
1151 int fd = s_fileno_croak (fh, 0);
553 dREQ; 1152 dREQ;
554 1153
555 req->type = ix; 1154 req->type = ix;
556 req->fh = newSVsv (fh); 1155 req->sv1 = newSVsv (fh);
557 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1156 req->int1 = fd;
558 1157
559 send_req (req); 1158 REQ_SEND;
560} 1159}
561 1160
562void 1161void
1162aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1163 PPCODE:
1164{
1165 int fd = s_fileno_croak (fh, 0);
1166 dREQ;
1167
1168 req->type = EIO_SYNC_FILE_RANGE;
1169 req->sv1 = newSVsv (fh);
1170 req->int1 = fd;
1171 req->offs = offset;
1172 req->size = nbytes;
1173 req->int2 = flags;
1174
1175 REQ_SEND;
1176}
1177
1178void
1179aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1180 PPCODE:
1181{
1182 int fd = s_fileno_croak (fh, 0);
1183 dREQ;
1184
1185 req->type = EIO_FALLOCATE;
1186 req->sv1 = newSVsv (fh);
1187 req->int1 = fd;
1188 req->int2 = mode;
1189 req->offs = offset;
1190 req->size = len;
1191
1192 REQ_SEND;
1193}
1194
1195void
1196aio_close (SV *fh, SV *callback = &PL_sv_undef)
1197 PPCODE:
1198{
1199 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1200 int fd = s_fileno_croak (fh, 0);
1201 dREQ;
1202
1203 if (expect_false (close_fd < 0))
1204 {
1205 int pipefd [2];
1206
1207 if (
1208#ifdef _WIN32
1209 _pipe (pipefd, 1, _O_BINARY) < 0
1210#else
1211 pipe (pipefd) < 0
1212 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1213#endif
1214 || close (pipefd [1]) < 0
1215 )
1216 abort (); /*D*/
1217
1218 close_fd = pipefd [0];
1219 }
1220
1221 req->type = EIO_DUP2;
1222 req->int1 = close_fd;
1223 req->sv2 = newSVsv (fh);
1224 req->int2 = fd;
1225
1226 REQ_SEND;
1227}
1228
1229void
1230aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1231 PPCODE:
1232{
1233 int fd = s_fileno_croak (fh, 0);
1234 dREQ;
1235
1236 req->type = EIO_SEEK;
1237 req->sv1 = newSVsv (fh);
1238 req->int1 = fd;
1239 req->offs = SvVAL64 (offset);
1240 req->int2 = whence;
1241
1242 REQ_SEND;
1243}
1244
1245void
563aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1246aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
564 SV * fh
565 UV offset
566 IV length
567 SV * data
568 IV dataoffset
569 SV * callback
570 ALIAS: 1247 ALIAS:
571 aio_read = REQ_READ 1248 aio_read = EIO_READ
572 aio_write = REQ_WRITE 1249 aio_write = EIO_WRITE
573 PROTOTYPE: $$$$$;$
574 CODE: 1250 PPCODE:
575{ 1251{
576 aio_req req;
577 STRLEN svlen; 1252 STRLEN svlen;
1253 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
578 char *svptr = SvPVbyte (data, svlen); 1254 char *svptr = SvPVbyte (data, svlen);
579 1255 UV len = SvUV (length);
580 SvUPGRADE (data, SVt_PV);
581 SvPOK_on (data);
582 1256
583 if (dataoffset < 0) 1257 if (dataoffset < 0)
584 dataoffset += svlen; 1258 dataoffset += svlen;
585 1259
586 if (dataoffset < 0 || dataoffset > svlen) 1260 if (dataoffset < 0 || dataoffset > svlen)
587 croak ("data offset outside of string"); 1261 croak ("dataoffset outside of data scalar");
588 1262
589 if (ix == REQ_WRITE) 1263 if (ix == EIO_WRITE)
590 { 1264 {
591 /* write: check length and adjust. */ 1265 /* write: check length and adjust. */
592 if (length < 0 || length + dataoffset > svlen) 1266 if (!SvOK (length) || len + dataoffset > svlen)
593 length = svlen - dataoffset; 1267 len = svlen - dataoffset;
594 } 1268 }
595 else 1269 else
596 { 1270 {
597 /* read: grow scalar as necessary */ 1271 /* read: check type and grow scalar as necessary */
1272 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
598 svptr = SvGROW (data, length + dataoffset); 1273 svptr = sv_grow (data, len + dataoffset + 1);
1274 else if (SvCUR (data) < len + dataoffset)
1275 croak ("length + dataoffset outside of scalar, and cannot grow");
599 } 1276 }
600
601 if (length < 0)
602 croak ("length must not be negative");
603 1277
604 { 1278 {
605 dREQ; 1279 dREQ;
606 1280
607 req->type = ix; 1281 req->type = ix;
608 req->fh = newSVsv (fh); 1282 req->sv1 = newSVsv (fh);
609 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1283 req->int1 = fd;
610 : IoOFP (sv_2io (fh))); 1284 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
611 req->offset = offset; 1285 req->size = len;
612 req->length = length;
613 req->data = SvREFCNT_inc (data); 1286 req->sv2 = SvREFCNT_inc (data);
614 req->dataptr = (char *)svptr + dataoffset; 1287 req->ptr2 = (char *)svptr + dataoffset;
615 req->callback = SvREFCNT_inc (callback); 1288 req->stroffset = dataoffset;
616 1289
617 send_req (req); 1290 if (!SvREADONLY (data))
1291 {
1292 SvREADONLY_on (data);
1293 req->flags |= FLAG_SV2_RO_OFF;
1294 }
1295
1296 REQ_SEND;
618 } 1297 }
619} 1298}
620 1299
621void 1300void
622aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1301aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
623 SV * fh
624 UV offset
625 IV length
626 SV * callback
627 PROTOTYPE: $$$;$
628 CODE:
629{
630 dREQ;
631
632 req->type = REQ_READAHEAD;
633 req->fh = newSVsv (fh);
634 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
635 req->offset = offset;
636 req->length = length;
637
638 send_req (req);
639}
640
641void
642aio_stat(fh_or_path,callback=&PL_sv_undef)
643 SV * fh_or_path
644 SV * callback
645 ALIAS: 1302 ALIAS:
646 aio_stat = REQ_STAT 1303 aio_ioctl = EIO_IOCTL
647 aio_lstat = REQ_LSTAT 1304 aio_fcntl = EIO_FCNTL
648 CODE: 1305 PPCODE:
649{ 1306{
650 dREQ; 1307 int fd = s_fileno_croak (fh, 0);
1308 char *svptr;
651 1309
652 New (0, req->statdata, 1, Stat_t); 1310 if (SvPOK (arg) || !SvNIOK (arg))
653 if (!req->statdata)
654 croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");
655
656 if (SvPOK (fh_or_path))
657 { 1311 {
658 req->type = ix; 1312 STRLEN svlen;
659 req->data = newSVsv (fh_or_path); 1313 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
660 req->dataptr = SvPVbyte_nolen (req->data); 1314#ifdef IOCPARM_LEN
1315 STRLEN need = IOCPARM_LEN (request);
1316#else
1317 STRLEN need = 256;
1318#endif
1319
1320 if (svlen < need)
1321 svptr = SvGROW (arg, need + 1);
661 } 1322 }
662 else 1323 else
1324 svptr = (char *)SvIV (arg);
1325
663 { 1326 {
1327 dREQ;
1328
664 req->type = REQ_FSTAT; 1329 req->type = ix;
665 req->fh = newSVsv (fh_or_path); 1330 req->sv1 = newSVsv (fh);
666 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1331 req->int1 = fd;
1332 req->int2 = (long)request;
1333 req->sv2 = SvREFCNT_inc (arg);
1334 req->ptr2 = svptr;
1335
1336 REQ_SEND;
667 } 1337 }
668
669 send_req (req);
670} 1338}
671 1339
672void 1340void
673aio_unlink(pathname,callback=&PL_sv_undef) 1341aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
674 SV * pathname
675 SV * callback
676 ALIAS: 1342 ALIAS:
677 aio_unlink = REQ_UNLINK 1343 aio_readlink = EIO_READLINK
678 aio_rmdir = REQ_RMDIR 1344 aio_realpath = EIO_REALPATH
1345 PPCODE:
1346{
1347 dREQ;
1348
1349 req->type = ix;
1350 req_set_path1 (req, pathname);
1351
1352 REQ_SEND;
1353}
1354
1355void
1356aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1357 PPCODE:
1358{
1359 int ifd = s_fileno_croak (in_fh , 0);
1360 int ofd = s_fileno_croak (out_fh, 1);
1361 dREQ;
1362
1363 req->type = EIO_SENDFILE;
1364 req->sv1 = newSVsv (out_fh);
1365 req->int1 = ofd;
1366 req->sv2 = newSVsv (in_fh);
1367 req->int2 = ifd;
1368 req->offs = in_offset;
1369 req->size = length;
1370
1371 REQ_SEND;
1372}
1373
1374void
1375aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1376 PPCODE:
1377{
1378 int fd = s_fileno_croak (fh, 0);
1379 dREQ;
1380
1381 req->type = EIO_READAHEAD;
1382 req->sv1 = newSVsv (fh);
1383 req->int1 = fd;
1384 req->offs = offset;
1385 req->size = length;
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1392 ALIAS:
1393 aio_stat = EIO_STAT
1394 aio_lstat = EIO_LSTAT
1395 aio_statvfs = EIO_STATVFS
1396 PPCODE:
1397{
1398 dREQ;
1399
1400 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1401
1402 REQ_SEND;
1403}
1404
1405UV
1406major (UV dev)
1407 ALIAS:
1408 minor = 1
679 CODE: 1409 CODE:
1410 RETVAL = ix ? major (dev) : minor (dev);
1411 OUTPUT:
1412 RETVAL
1413
1414UV
1415makedev (UV maj, UV min)
1416 CODE:
1417 RETVAL = makedev (maj, min);
1418 OUTPUT:
1419 RETVAL
1420
1421void
1422aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1423 PPCODE:
1424{
1425 dREQ;
1426
1427 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1428 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1429 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1430
1431 REQ_SEND;
1432}
1433
1434void
1435aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1436 PPCODE:
1437{
1438 dREQ;
1439
1440 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1441 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1442
1443 REQ_SEND;
1444}
1445
1446void
1447aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1448 PPCODE:
1449{
1450 dREQ;
1451
1452 req->int2 = mode;
1453 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1454
1455 REQ_SEND;
1456}
1457
1458void
1459aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1460 PPCODE:
1461{
1462 dREQ;
1463
1464 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1465 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1466 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1467
1468 REQ_SEND;
1469}
1470
1471void
1472aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1473 PPCODE:
1474{
1475 dREQ;
1476
1477 req->type = EIO_READDIR;
1478 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1479
1480 if (flags & EIO_READDIR_DENTS)
1481 req->int1 |= EIO_READDIR_CUSTOM2;
1482
1483 req_set_path1 (req, pathname);
1484
1485 REQ_SEND;
1486}
1487
1488void
1489aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1490 PPCODE:
1491{
1492 dREQ;
1493
1494 req->type = EIO_MKDIR;
1495 req->int2 = mode;
1496 req_set_path1 (req, pathname);
1497
1498 REQ_SEND;
1499}
1500
1501void
1502aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1503 ALIAS:
1504 aio_unlink = EIO_UNLINK
1505 aio_rmdir = EIO_RMDIR
1506 aio_readdir = EIO_READDIR
1507 PPCODE:
680{ 1508{
681 dREQ; 1509 dREQ;
682 1510
683 req->type = ix; 1511 req->type = ix;
684 req->data = newSVsv (pathname); 1512 req_set_path1 (req, pathname);
685 req->dataptr = SvPVbyte_nolen (req->data);
686
687 send_req (req);
688}
689 1513
1514 REQ_SEND;
1515}
1516
690void 1517void
691aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1518aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
692 SV * oldpath 1519 ALIAS:
693 SV * newpath 1520 aio_link = EIO_LINK
694 SV * callback 1521 aio_symlink = EIO_SYMLINK
1522 aio_rename = EIO_RENAME
695 CODE: 1523 PPCODE:
696{ 1524{
1525 eio_wd wd2 = 0;
697 dREQ; 1526 dREQ;
698 1527
699 req->type = REQ_SYMLINK; 1528 req->type = ix;
700 req->fh = newSVsv (oldpath); 1529 req_set_path1 (req, oldpath);
701 req->data2ptr = SvPVbyte_nolen (req->fh); 1530 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
702 req->data = newSVsv (newpath); 1531 req->int3 = (long)wd2;
703 req->dataptr = SvPVbyte_nolen (req->data);
704 1532
705 send_req (req); 1533 REQ_SEND;
706} 1534}
707 1535
708void 1536void
709flush() 1537aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
710 PROTOTYPE: 1538 PPCODE:
1539{
1540 dREQ;
1541
1542 req->type = EIO_MKNOD;
1543 req->int2 = (mode_t)mode;
1544 req->offs = dev;
1545 req_set_path1 (req, pathname);
1546
1547 REQ_SEND;
1548}
1549
1550void
1551aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1552 ALIAS:
1553 aio_mtouch = EIO_MTOUCH
1554 aio_msync = EIO_MSYNC
1555 PPCODE:
1556{
1557 STRLEN svlen;
1558 char *svptr = SvPVbyte (data, svlen);
1559 UV len = SvUV (length);
1560
1561 if (offset < 0)
1562 offset += svlen;
1563
1564 if (offset < 0 || offset > svlen)
1565 croak ("offset outside of scalar");
1566
1567 if (!SvOK (length) || len + offset > svlen)
1568 len = svlen - offset;
1569
1570 {
1571 dREQ;
1572
1573 req->type = ix;
1574 req->sv2 = SvREFCNT_inc (data);
1575 req->ptr2 = (char *)svptr + offset;
1576 req->size = len;
1577 req->int1 = flags;
1578
1579 REQ_SEND;
1580 }
1581}
1582
1583void
1584aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 STRLEN svlen;
1588 char *svptr = SvPVbyte (data, svlen);
1589 UV len = SvUV (length);
1590
1591 if (offset < 0)
1592 offset += svlen;
1593
1594 if (offset < 0 || offset > svlen)
1595 croak ("offset outside of scalar");
1596
1597 if (!SvOK (length) || len + offset > svlen)
1598 len = svlen - offset;
1599
1600 {
1601 dREQ;
1602
1603 req->type = EIO_MLOCK;
1604 req->sv2 = SvREFCNT_inc (data);
1605 req->ptr2 = (char *)svptr + offset;
1606 req->size = len;
1607
1608 REQ_SEND;
1609 }
1610}
1611
1612void
1613aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1614 PPCODE:
1615{
1616 dREQ;
1617
1618 req->type = EIO_MLOCKALL;
1619 req->int1 = flags;
1620
1621 REQ_SEND;
1622}
1623
1624void
1625aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1626 PPCODE:
1627{
1628 int fd = s_fileno_croak (fh, 0);
1629 dREQ;
1630
1631 req->type = EIO_CUSTOM;
1632 req->sv1 = newSVsv (fh);
1633 req->int1 = fd;
1634
1635 req->feed = fiemap;
1636#if HAVE_FIEMAP
1637 /* keep our fingers crossed that the next two types are 64 bit */
1638 req->offs = start;
1639 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1640 req->int2 = flags;
1641 req->int3 = SvOK (count) ? SvIV (count) : -1;
1642#endif
1643
1644 REQ_SEND;
1645}
1646
1647void
1648aio_busy (double delay, SV *callback = &PL_sv_undef)
1649 PPCODE:
1650{
1651 dREQ;
1652
1653 req->type = EIO_BUSY;
1654 req->nv1 = delay < 0. ? 0. : delay;
1655
1656 REQ_SEND;
1657}
1658
1659void
1660aio_group (SV *callback = &PL_sv_undef)
1661 PPCODE:
1662{
1663 dREQ;
1664
1665 req->type = EIO_GROUP;
1666
1667 PUTBACK;
1668 req_submit (req);
1669 SPAGAIN;
1670
1671 XPUSHs (req_sv (req, aio_grp_stash));
1672}
1673
1674void
1675aio_nop (SV *callback = &PL_sv_undef)
1676 ALIAS:
1677 aio_nop = EIO_NOP
1678 aio_sync = EIO_SYNC
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->type = ix;
1684
1685 REQ_SEND;
1686}
1687
1688int
1689aioreq_pri (int pri = NO_INIT)
711 CODE: 1690 CODE:
1691 RETVAL = next_pri;
1692 if (items > 0)
1693 {
1694 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1695 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1696 next_pri = pri;
1697 }
1698 OUTPUT:
1699 RETVAL
1700
1701void
1702aioreq_nice (int nice = 0)
1703 CODE:
1704 nice = next_pri - nice;
1705 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1706 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1707 next_pri = nice;
1708
1709void
1710flush ()
1711 CODE:
712 while (nreqs) 1712 while (eio_nreqs ())
713 { 1713 {
714 poll_wait (); 1714 poll_wait ();
715 poll_cb (); 1715 poll_cb ();
716 } 1716 }
717 1717
718void 1718int
719poll() 1719poll ()
720 PROTOTYPE:
721 CODE: 1720 CODE:
722 if (nreqs)
723 {
724 poll_wait (); 1721 poll_wait ();
725 poll_cb (); 1722 RETVAL = poll_cb ();
726 }
727
728int
729poll_fileno()
730 PROTOTYPE:
731 CODE:
732 RETVAL = respipe [0];
733 OUTPUT: 1723 OUTPUT:
734 RETVAL 1724 RETVAL
735 1725
736int 1726int
1727poll_fileno ()
1728 CODE:
1729 RETVAL = s_epipe_fd (&respipe);
1730 OUTPUT:
1731 RETVAL
1732
1733int
737poll_cb(...) 1734poll_cb (...)
738 PROTOTYPE: 1735 PROTOTYPE:
739 CODE: 1736 CODE:
740 RETVAL = poll_cb (); 1737 RETVAL = poll_cb ();
741 OUTPUT: 1738 OUTPUT:
742 RETVAL 1739 RETVAL
743 1740
744void 1741void
745poll_wait() 1742poll_wait ()
746 PROTOTYPE:
747 CODE: 1743 CODE:
748 if (nreqs)
749 poll_wait (); 1744 poll_wait ();
750 1745
751int 1746int
752nreqs() 1747nreqs ()
753 PROTOTYPE:
754 CODE: 1748 CODE:
755 RETVAL = nreqs; 1749 RETVAL = eio_nreqs ();
756 OUTPUT: 1750 OUTPUT:
757 RETVAL 1751 RETVAL
758 1752
1753int
1754nready ()
1755 CODE:
1756 RETVAL = eio_nready ();
1757 OUTPUT:
1758 RETVAL
1759
1760int
1761npending ()
1762 CODE:
1763 RETVAL = eio_npending ();
1764 OUTPUT:
1765 RETVAL
1766
1767int
1768nthreads ()
1769 CODE:
1770 RETVAL = eio_nthreads ();
1771 OUTPUT:
1772 RETVAL
1773
1774int
1775fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1776 CODE:
1777 RETVAL = posix_fadvise (fh, offset, length, advice);
1778 OUTPUT:
1779 RETVAL
1780
1781IV
1782sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1783 CODE:
1784 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1785 OUTPUT:
1786 RETVAL
1787
1788void
1789mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1790 PPCODE:
1791 sv_unmagic (scalar, MMAP_MAGIC);
1792{
1793 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1794 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1795 if (addr == (void *)-1)
1796 XSRETURN_NO;
1797
1798 sv_force_normal (scalar);
1799
1800 /* we store the length in mg_obj, as namlen is I32 :/ */
1801 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1802 ->mg_obj = (SV *)length;
1803
1804 SvUPGRADE (scalar, SVt_PV); /* nop... */
1805
1806 if (!(prot & PROT_WRITE))
1807 SvREADONLY_on (scalar);
1808
1809 if (SvLEN (scalar))
1810 Safefree (SvPVX (scalar));
1811
1812 SvPVX (scalar) = (char *)addr;
1813 SvCUR_set (scalar, length);
1814 SvLEN_set (scalar, 0);
1815 SvPOK_only (scalar);
1816
1817 XSRETURN_YES;
1818}
1819
1820void
1821munmap (SV *scalar)
1822 CODE:
1823 sv_unmagic (scalar, MMAP_MAGIC);
1824
1825int
1826madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1827 ALIAS:
1828 mprotect = 1
1829 CODE:
1830{
1831 STRLEN svlen;
1832 void *addr = SvPVbyte (scalar, svlen);
1833 STRLEN len = SvUV (length);
1834
1835 if (offset < 0)
1836 offset += svlen;
1837
1838 if (offset < 0 || offset > svlen)
1839 croak ("offset outside of scalar");
1840
1841 if (!SvOK (length) || len + offset > svlen)
1842 len = svlen - offset;
1843
1844 addr = (void *)(((intptr_t)addr) + offset);
1845 eio_page_align (&addr, &len);
1846
1847 switch (ix)
1848 {
1849 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1850 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1851 }
1852}
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1858 CODE:
1859{
1860 STRLEN svlen;
1861 void *addr = SvPVbyte (scalar, svlen);
1862 size_t len = SvUV (length);
1863
1864 if (offset < 0)
1865 offset += svlen;
1866
1867 if (offset < 0 || offset > svlen)
1868 croak ("offset outside of scalar");
1869
1870 if (!SvOK (length) || len + offset > svlen)
1871 len = svlen - offset;
1872
1873 addr = (void *)(((intptr_t)addr) + offset);
1874 eio_page_align (&addr, &len);
1875#if _POSIX_MEMLOCK_RANGE
1876 RETVAL = munlock (addr, len);
1877#else
1878 RETVAL = EIO_ENOSYS ();
1879#endif
1880}
1881 OUTPUT:
1882 RETVAL
1883
1884int
1885munlockall ()
1886 CODE:
1887#if _POSIX_MEMLOCK
1888 munlockall ();
1889#else
1890 RETVAL = EIO_ENOSYS ();
1891#endif
1892 OUTPUT:
1893 RETVAL
1894
1895int
1896splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1897 CODE:
1898{
1899#if HAVE_LINUX_SPLICE
1900 loff_t off_in_, off_out_;
1901 RETVAL = splice (
1902 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1903 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1904 length, flags
1905 );
1906#else
1907 RETVAL = EIO_ENOSYS ();
1908#endif
1909}
1910 OUTPUT:
1911 RETVAL
1912
1913int
1914tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1915 CODE:
1916#if HAVE_LINUX_SPLICE
1917 RETVAL = tee (rfh, wfh, length, flags);
1918#else
1919 RETVAL = EIO_ENOSYS ();
1920#endif
1921 OUTPUT:
1922 RETVAL
1923
1924int
1925pipesize (aio_rfd rfh, int new_size = -1)
1926 PROTOTYPE: $;$
1927 CODE:
1928#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1929 if (new_size >= 0)
1930 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1931 else
1932 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1933#else
1934 errno = ENOSYS;
1935 RETVAL = -1;
1936#endif
1937 OUTPUT:
1938 RETVAL
1939
1940void
1941pipe2 (int flags = 0)
1942 PROTOTYPE: ;$
1943 PPCODE:
1944{
1945 int fd[2];
1946 int res;
1947
1948 if (flags)
1949#if HAVE_PIPE2
1950 res = pipe2 (fd, flags);
1951#else
1952 res = (errno = ENOSYS, -1);
1953#endif
1954 else
1955 res = pipe (fd);
1956
1957 if (!res)
1958 {
1959 EXTEND (SP, 2);
1960 PUSHs (newmortalFH (fd[0], O_RDONLY));
1961 PUSHs (newmortalFH (fd[1], O_WRONLY));
1962 }
1963}
1964
1965void _on_next_submit (SV *cb)
1966 CODE:
1967 SvREFCNT_dec (on_next_submit);
1968 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1969
1970PROTOTYPES: DISABLE
1971
1972MODULE = IO::AIO PACKAGE = IO::AIO::WD
1973
1974BOOT:
1975{
1976 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1977 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1978}
1979
1980void
1981DESTROY (SV *self)
1982 CODE:
1983{
1984 aio_wd wd = SvAIO_WD (self);
1985#if HAVE_AT
1986 {
1987 SV *callback = &PL_sv_undef;
1988 dREQ; /* clobbers next_pri :/ */
1989 next_pri = req->pri; /* restore next_pri */
1990 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1991 req->type = EIO_WD_CLOSE;
1992 req->wd = wd;
1993 REQ_SEND;
1994 }
1995#else
1996 eio_wd_close_sync (wd);
1997#endif
1998}
1999
2000MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2001
2002void
2003cancel (aio_req_ornot req)
2004 CODE:
2005 eio_cancel (req);
2006
2007void
2008cb (aio_req_ornot req, SV *callback = NO_INIT)
2009 PPCODE:
2010{
2011 if (GIMME_V != G_VOID)
2012 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2013
2014 if (items > 1)
2015 {
2016 SV *cb_cv = get_cb (callback);
2017
2018 SvREFCNT_dec (req->callback);
2019 req->callback = SvREFCNT_inc (cb_cv);
2020 }
2021}
2022
2023MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2024
2025void
2026add (aio_req grp, ...)
2027 PPCODE:
2028{
2029 int i;
2030
2031 if (grp->int1 == 2)
2032 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2033
2034 for (i = 1; i < items; ++i )
2035 {
2036 aio_req req;
2037
2038 if (GIMME_V != G_VOID)
2039 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2040
2041 req = SvAIO_REQ (ST (i));
2042
2043 if (req)
2044 eio_grp_add (grp, req);
2045 }
2046}
2047
2048void
2049cancel_subs (aio_req_ornot req)
2050 CODE:
2051 req_cancel_subs (req);
2052
2053void
2054result (aio_req grp, ...)
2055 CODE:
2056{
2057 int i;
2058 AV *av;
2059
2060 grp->errorno = errno;
2061
2062 av = newAV ();
2063 av_extend (av, items - 1);
2064
2065 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i)));
2067
2068 SvREFCNT_dec (grp->sv1);
2069 grp->sv1 = (SV *)av;
2070}
2071
2072void
2073errno (aio_req grp, int errorno = errno)
2074 CODE:
2075 grp->errorno = errorno;
2076
2077void
2078limit (aio_req grp, int limit)
2079 CODE:
2080 eio_grp_limit (grp, limit);
2081
2082void
2083feed (aio_req grp, SV *callback = &PL_sv_undef)
2084 CODE:
2085{
2086 SvREFCNT_dec (grp->sv2);
2087 grp->sv2 = newSVsv (callback);
2088 grp->feed = aio_grp_feed;
2089
2090 if (grp->int2 <= 0)
2091 grp->int2 = 2;
2092
2093 eio_grp_limit (grp, grp->int2);
2094}
2095

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