|
|
1 | /* solaris */ |
|
|
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
|
|
3 | |
|
|
4 | #if __linux |
|
|
5 | # define _GNU_SOURCE |
|
|
6 | #endif |
|
|
7 | |
|
|
8 | #define _REENTRANT 1 |
|
|
9 | |
|
|
10 | #include <errno.h> |
|
|
11 | |
|
|
12 | #include "EXTERN.h" |
1 | #include "perl.h" |
13 | #include "perl.h" |
2 | #include "XSUB.h" |
14 | #include "XSUB.h" |
3 | |
15 | |
|
|
16 | #include "autoconf/config.h" |
|
|
17 | |
|
|
18 | #include <pthread.h> |
|
|
19 | |
|
|
20 | #include <stddef.h> |
|
|
21 | #include <errno.h> |
|
|
22 | #include <sys/time.h> |
|
|
23 | #include <sys/select.h> |
4 | #include <sys/types.h> |
24 | #include <sys/types.h> |
5 | #include <sys/stat.h> |
25 | #include <sys/stat.h> |
6 | |
26 | #include <limits.h> |
7 | #include <unistd.h> |
27 | #include <unistd.h> |
8 | #include <fcntl.h> |
28 | #include <fcntl.h> |
9 | #include <signal.h> |
29 | #include <signal.h> |
10 | #include <sched.h> |
30 | #include <sched.h> |
|
|
31 | |
|
|
32 | #if HAVE_SENDFILE |
11 | #if __linux |
33 | # if __linux |
|
|
34 | # include <sys/sendfile.h> |
|
|
35 | # elif __freebsd |
12 | #include <sys/syscall.h> |
36 | # include <sys/socket.h> |
|
|
37 | # include <sys/uio.h> |
|
|
38 | # elif __hpux |
|
|
39 | # include <sys/socket.h> |
|
|
40 | # elif __solaris /* not yet */ |
|
|
41 | # include <sys/sendfile.h> |
|
|
42 | # else |
|
|
43 | # error sendfile support requested but not available |
13 | #endif |
44 | # endif |
|
|
45 | #endif |
14 | |
46 | |
15 | #include <pthread.h> |
47 | /* used for struct dirent, AIX doesn't provide it */ |
16 | |
48 | #ifndef NAME_MAX |
17 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
49 | # define NAME_MAX 4096 |
18 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
50 | #endif |
19 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
|
|
20 | |
51 | |
21 | #if __ia64 |
52 | #if __ia64 |
22 | # define STACKSIZE 65536 |
53 | # define STACKSIZE 65536 |
|
|
54 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
|
|
55 | # define STACKSIZE PTHREAD_STACK_MIN |
23 | #else |
56 | #else |
24 | # define STACKSIZE 4096 |
57 | # define STACKSIZE 16384 |
25 | #endif |
58 | #endif |
|
|
59 | |
|
|
60 | /* buffer size for various temporary buffers */ |
|
|
61 | #define AIO_BUFSIZE 65536 |
|
|
62 | |
|
|
63 | #define dBUF \ |
|
|
64 | char *aio_buf; \ |
|
|
65 | LOCK (wrklock); \ |
|
|
66 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
|
|
67 | UNLOCK (wrklock); \ |
|
|
68 | if (!aio_buf) \ |
|
|
69 | return -1; |
26 | |
70 | |
27 | enum { |
71 | enum { |
28 | REQ_QUIT, |
72 | REQ_QUIT, |
29 | REQ_OPEN, REQ_CLOSE, |
73 | REQ_OPEN, REQ_CLOSE, |
30 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
74 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
|
|
75 | REQ_SENDFILE, |
31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
76 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
32 | REQ_FSYNC, REQ_FDATASYNC, |
77 | REQ_FSYNC, REQ_FDATASYNC, |
|
|
78 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
|
|
79 | REQ_READDIR, |
|
|
80 | REQ_LINK, REQ_SYMLINK, |
|
|
81 | REQ_GROUP, REQ_NOP, |
|
|
82 | REQ_BUSY, |
33 | }; |
83 | }; |
34 | |
84 | |
|
|
85 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
|
|
86 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
|
|
87 | |
35 | typedef struct aio_cb { |
88 | typedef struct aio_cb |
|
|
89 | { |
36 | struct aio_cb *volatile next; |
90 | struct aio_cb *volatile next; |
37 | |
91 | |
38 | int type; |
92 | SV *data, *callback; |
39 | |
93 | SV *fh, *fh2; |
40 | int fd; |
94 | void *dataptr, *data2ptr; |
|
|
95 | Stat_t *statdata; |
41 | off_t offset; |
96 | off_t offset; |
42 | size_t length; |
97 | size_t length; |
43 | ssize_t result; |
98 | ssize_t result; |
|
|
99 | |
|
|
100 | STRLEN dataoffset; |
|
|
101 | int type; |
|
|
102 | int fd, fd2; |
|
|
103 | int errorno; |
44 | mode_t mode; /* open */ |
104 | mode_t mode; /* open */ |
45 | int errorno; |
|
|
46 | SV *data, *callback, *fh; |
|
|
47 | void *dataptr; |
|
|
48 | STRLEN dataoffset; |
|
|
49 | |
105 | |
50 | Stat_t *statdata; |
106 | unsigned char flags; |
|
|
107 | unsigned char pri; |
|
|
108 | |
|
|
109 | SV *self; /* the perl counterpart of this request, if any */ |
|
|
110 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
51 | } aio_cb; |
111 | } aio_cb; |
52 | |
112 | |
|
|
113 | enum { |
|
|
114 | FLAG_CANCELLED = 0x01, |
|
|
115 | }; |
|
|
116 | |
53 | typedef aio_cb *aio_req; |
117 | typedef aio_cb *aio_req; |
|
|
118 | typedef aio_cb *aio_req_ornot; |
54 | |
119 | |
|
|
120 | enum { |
|
|
121 | PRI_MIN = -4, |
|
|
122 | PRI_MAX = 4, |
|
|
123 | |
|
|
124 | DEFAULT_PRI = 0, |
|
|
125 | PRI_BIAS = -PRI_MIN, |
|
|
126 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
|
|
127 | }; |
|
|
128 | |
|
|
129 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
|
|
130 | |
55 | static int started; |
131 | static int started, wanted; |
56 | static volatile int nreqs; |
132 | static volatile int nreqs; |
57 | static int max_outstanding = 1<<30; |
133 | static int max_outstanding = 1<<30; |
58 | static int respipe [2]; |
134 | static int respipe [2]; |
59 | |
135 | |
|
|
136 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
|
|
137 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
|
|
138 | #else |
|
|
139 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
|
|
140 | #endif |
|
|
141 | |
|
|
142 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
|
|
143 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
|
|
144 | |
|
|
145 | /* worker threasd management */ |
|
|
146 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
|
|
147 | |
|
|
148 | typedef struct worker { |
|
|
149 | /* locked by wrklock */ |
|
|
150 | struct worker *prev, *next; |
|
|
151 | |
|
|
152 | pthread_t tid; |
|
|
153 | |
|
|
154 | /* locked by reslock, reqlock or wrklock */ |
|
|
155 | aio_req req; /* currently processed request */ |
|
|
156 | void *dbuf; |
|
|
157 | DIR *dirp; |
|
|
158 | } worker; |
|
|
159 | |
|
|
160 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
|
|
161 | |
|
|
162 | static void worker_clear (worker *wrk) |
|
|
163 | { |
|
|
164 | if (wrk->dirp) |
|
|
165 | { |
|
|
166 | closedir (wrk->dirp); |
|
|
167 | wrk->dirp = 0; |
|
|
168 | } |
|
|
169 | |
|
|
170 | if (wrk->dbuf) |
|
|
171 | { |
|
|
172 | free (wrk->dbuf); |
|
|
173 | wrk->dbuf = 0; |
|
|
174 | } |
|
|
175 | } |
|
|
176 | |
|
|
177 | static void worker_free (worker *wrk) |
|
|
178 | { |
|
|
179 | wrk->next->prev = wrk->prev; |
|
|
180 | wrk->prev->next = wrk->next; |
|
|
181 | |
|
|
182 | free (wrk); |
|
|
183 | } |
|
|
184 | |
60 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
185 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
61 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
186 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
62 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
187 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
63 | |
188 | |
64 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
189 | /* |
65 | static volatile aio_req ress, rese; /* queue start, queue end */ |
190 | * a somewhat faster data structure might be nice, but |
|
|
191 | * with 8 priorities this actually needs <20 insns |
|
|
192 | * per shift, the most expensive operation. |
|
|
193 | */ |
|
|
194 | typedef struct { |
|
|
195 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
|
|
196 | int size; |
|
|
197 | } reqq; |
66 | |
198 | |
67 | static void |
199 | static reqq req_queue; |
68 | poll_wait () |
200 | static reqq res_queue; |
|
|
201 | |
|
|
202 | int reqq_push (reqq *q, aio_req req) |
69 | { |
203 | { |
70 | if (nreqs && !ress) |
204 | int pri = req->pri; |
|
|
205 | req->next = 0; |
|
|
206 | |
|
|
207 | if (q->qe[pri]) |
|
|
208 | { |
|
|
209 | q->qe[pri]->next = req; |
|
|
210 | q->qe[pri] = req; |
71 | { |
211 | } |
|
|
212 | else |
|
|
213 | q->qe[pri] = q->qs[pri] = req; |
|
|
214 | |
|
|
215 | return q->size++; |
|
|
216 | } |
|
|
217 | |
|
|
218 | aio_req reqq_shift (reqq *q) |
|
|
219 | { |
|
|
220 | int pri; |
|
|
221 | |
|
|
222 | if (!q->size) |
|
|
223 | return 0; |
|
|
224 | |
|
|
225 | --q->size; |
|
|
226 | |
|
|
227 | for (pri = NUM_PRI; pri--; ) |
|
|
228 | { |
|
|
229 | aio_req req = q->qs[pri]; |
|
|
230 | |
|
|
231 | if (req) |
|
|
232 | { |
|
|
233 | if (!(q->qs[pri] = req->next)) |
|
|
234 | q->qe[pri] = 0; |
|
|
235 | |
|
|
236 | return req; |
|
|
237 | } |
|
|
238 | } |
|
|
239 | |
|
|
240 | abort (); |
|
|
241 | } |
|
|
242 | |
|
|
243 | static void req_invoke (aio_req req); |
|
|
244 | static void req_free (aio_req req); |
|
|
245 | static void req_cancel (aio_req req); |
|
|
246 | |
|
|
247 | /* must be called at most once */ |
|
|
248 | static SV *req_sv (aio_req req, const char *klass) |
|
|
249 | { |
|
|
250 | if (!req->self) |
|
|
251 | { |
|
|
252 | req->self = (SV *)newHV (); |
|
|
253 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
|
|
254 | } |
|
|
255 | |
|
|
256 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
|
|
257 | } |
|
|
258 | |
|
|
259 | static aio_req SvAIO_REQ (SV *sv) |
|
|
260 | { |
|
|
261 | MAGIC *mg; |
|
|
262 | |
|
|
263 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
|
|
264 | croak ("object of class " AIO_REQ_KLASS " expected"); |
|
|
265 | |
|
|
266 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
|
|
267 | |
|
|
268 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
|
269 | } |
|
|
270 | |
|
|
271 | static void aio_grp_feed (aio_req grp) |
|
|
272 | { |
|
|
273 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
|
|
274 | { |
|
|
275 | int old_len = grp->length; |
|
|
276 | |
|
|
277 | if (grp->fh2 && SvOK (grp->fh2)) |
|
|
278 | { |
|
|
279 | dSP; |
|
|
280 | |
|
|
281 | ENTER; |
|
|
282 | SAVETMPS; |
|
|
283 | PUSHMARK (SP); |
|
|
284 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
285 | PUTBACK; |
|
|
286 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
|
|
287 | SPAGAIN; |
|
|
288 | FREETMPS; |
|
|
289 | LEAVE; |
|
|
290 | } |
|
|
291 | |
|
|
292 | /* stop if no progress has been made */ |
|
|
293 | if (old_len == grp->length) |
|
|
294 | { |
|
|
295 | SvREFCNT_dec (grp->fh2); |
|
|
296 | grp->fh2 = 0; |
|
|
297 | break; |
|
|
298 | } |
|
|
299 | } |
|
|
300 | } |
|
|
301 | |
|
|
302 | static void aio_grp_dec (aio_req grp) |
|
|
303 | { |
|
|
304 | --grp->length; |
|
|
305 | |
|
|
306 | /* call feeder, if applicable */ |
|
|
307 | aio_grp_feed (grp); |
|
|
308 | |
|
|
309 | /* finish, if done */ |
|
|
310 | if (!grp->length && grp->fd) |
|
|
311 | { |
|
|
312 | req_invoke (grp); |
|
|
313 | req_free (grp); |
|
|
314 | } |
|
|
315 | } |
|
|
316 | |
|
|
317 | static void poll_wait () |
|
|
318 | { |
72 | fd_set rfd; |
319 | fd_set rfd; |
|
|
320 | |
|
|
321 | while (nreqs) |
|
|
322 | { |
|
|
323 | int size; |
|
|
324 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
|
|
325 | LOCK (reslock); |
|
|
326 | #endif |
|
|
327 | size = res_queue.size; |
|
|
328 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
|
|
329 | UNLOCK (reslock); |
|
|
330 | #endif |
|
|
331 | |
|
|
332 | if (size) |
|
|
333 | return; |
|
|
334 | |
73 | FD_ZERO(&rfd); |
335 | FD_ZERO(&rfd); |
74 | FD_SET(respipe [0], &rfd); |
336 | FD_SET(respipe [0], &rfd); |
75 | |
337 | |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
338 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
77 | } |
339 | } |
78 | } |
340 | } |
79 | |
341 | |
80 | static int |
342 | static void req_invoke (aio_req req) |
81 | poll_cb () |
343 | { |
|
|
344 | dSP; |
|
|
345 | |
|
|
346 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
|
|
347 | { |
|
|
348 | errno = req->errorno; |
|
|
349 | |
|
|
350 | ENTER; |
|
|
351 | SAVETMPS; |
|
|
352 | PUSHMARK (SP); |
|
|
353 | EXTEND (SP, 1); |
|
|
354 | |
|
|
355 | switch (req->type) |
|
|
356 | { |
|
|
357 | case REQ_READDIR: |
|
|
358 | { |
|
|
359 | SV *rv = &PL_sv_undef; |
|
|
360 | |
|
|
361 | if (req->result >= 0) |
|
|
362 | { |
|
|
363 | int i; |
|
|
364 | char *buf = req->data2ptr; |
|
|
365 | AV *av = newAV (); |
|
|
366 | |
|
|
367 | av_extend (av, req->result - 1); |
|
|
368 | |
|
|
369 | for (i = 0; i < req->result; ++i) |
|
|
370 | { |
|
|
371 | SV *sv = newSVpv (buf, 0); |
|
|
372 | |
|
|
373 | av_store (av, i, sv); |
|
|
374 | buf += SvCUR (sv) + 1; |
|
|
375 | } |
|
|
376 | |
|
|
377 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
378 | } |
|
|
379 | |
|
|
380 | PUSHs (rv); |
|
|
381 | } |
|
|
382 | break; |
|
|
383 | |
|
|
384 | case REQ_OPEN: |
|
|
385 | { |
|
|
386 | /* convert fd to fh */ |
|
|
387 | SV *fh; |
|
|
388 | |
|
|
389 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
390 | PUTBACK; |
|
|
391 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
392 | SPAGAIN; |
|
|
393 | |
|
|
394 | fh = SvREFCNT_inc (POPs); |
|
|
395 | |
|
|
396 | PUSHMARK (SP); |
|
|
397 | XPUSHs (sv_2mortal (fh)); |
|
|
398 | } |
|
|
399 | break; |
|
|
400 | |
|
|
401 | case REQ_GROUP: |
|
|
402 | req->fd = 2; /* mark group as finished */ |
|
|
403 | |
|
|
404 | if (req->data) |
|
|
405 | { |
|
|
406 | int i; |
|
|
407 | AV *av = (AV *)req->data; |
|
|
408 | |
|
|
409 | EXTEND (SP, AvFILL (av) + 1); |
|
|
410 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
411 | PUSHs (*av_fetch (av, i, 0)); |
|
|
412 | } |
|
|
413 | break; |
|
|
414 | |
|
|
415 | case REQ_NOP: |
|
|
416 | case REQ_BUSY: |
|
|
417 | break; |
|
|
418 | |
|
|
419 | default: |
|
|
420 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
421 | break; |
|
|
422 | } |
|
|
423 | |
|
|
424 | |
|
|
425 | PUTBACK; |
|
|
426 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
427 | SPAGAIN; |
|
|
428 | |
|
|
429 | FREETMPS; |
|
|
430 | LEAVE; |
|
|
431 | } |
|
|
432 | |
|
|
433 | if (req->grp) |
|
|
434 | { |
|
|
435 | aio_req grp = req->grp; |
|
|
436 | |
|
|
437 | /* unlink request */ |
|
|
438 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
439 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
440 | |
|
|
441 | if (grp->grp_first == req) |
|
|
442 | grp->grp_first = req->grp_next; |
|
|
443 | |
|
|
444 | aio_grp_dec (grp); |
|
|
445 | } |
|
|
446 | |
|
|
447 | if (SvTRUE (ERRSV)) |
|
|
448 | { |
|
|
449 | req_free (req); |
|
|
450 | croak (0); |
|
|
451 | } |
|
|
452 | } |
|
|
453 | |
|
|
454 | static void req_free (aio_req req) |
|
|
455 | { |
|
|
456 | if (req->self) |
|
|
457 | { |
|
|
458 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
459 | SvREFCNT_dec (req->self); |
|
|
460 | } |
|
|
461 | |
|
|
462 | SvREFCNT_dec (req->data); |
|
|
463 | SvREFCNT_dec (req->fh); |
|
|
464 | SvREFCNT_dec (req->fh2); |
|
|
465 | SvREFCNT_dec (req->callback); |
|
|
466 | Safefree (req->statdata); |
|
|
467 | |
|
|
468 | if (req->type == REQ_READDIR) |
|
|
469 | free (req->data2ptr); |
|
|
470 | |
|
|
471 | Safefree (req); |
|
|
472 | } |
|
|
473 | |
|
|
474 | static void req_cancel_subs (aio_req grp) |
|
|
475 | { |
|
|
476 | aio_req sub; |
|
|
477 | |
|
|
478 | if (grp->type != REQ_GROUP) |
|
|
479 | return; |
|
|
480 | |
|
|
481 | SvREFCNT_dec (grp->fh2); |
|
|
482 | grp->fh2 = 0; |
|
|
483 | |
|
|
484 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
485 | req_cancel (sub); |
|
|
486 | } |
|
|
487 | |
|
|
488 | static void req_cancel (aio_req req) |
|
|
489 | { |
|
|
490 | req->flags |= FLAG_CANCELLED; |
|
|
491 | |
|
|
492 | req_cancel_subs (req); |
|
|
493 | } |
|
|
494 | |
|
|
495 | static int poll_cb () |
82 | { |
496 | { |
83 | dSP; |
497 | dSP; |
84 | int count = 0; |
498 | int count = 0; |
|
|
499 | int do_croak = 0; |
85 | aio_req req, prv; |
500 | aio_req req; |
86 | |
501 | |
87 | pthread_mutex_lock (&reslock); |
502 | for (;;) |
88 | |
|
|
89 | { |
503 | { |
|
|
504 | LOCK (reslock); |
|
|
505 | req = reqq_shift (&res_queue); |
|
|
506 | |
|
|
507 | if (req) |
|
|
508 | { |
|
|
509 | if (!res_queue.size) |
|
|
510 | { |
90 | /* read any signals sent by the worker threads */ |
511 | /* read any signals sent by the worker threads */ |
91 | char buf [32]; |
512 | char buf [32]; |
92 | while (read (respipe [0], buf, 32) > 0) |
513 | while (read (respipe [0], buf, 32) == 32) |
|
|
514 | ; |
|
|
515 | } |
93 | ; |
516 | } |
94 | } |
|
|
95 | |
517 | |
96 | req = ress; |
518 | UNLOCK (reslock); |
97 | ress = rese = 0; |
|
|
98 | |
519 | |
99 | pthread_mutex_unlock (&reslock); |
520 | if (!req) |
|
|
521 | break; |
100 | |
522 | |
101 | while (req) |
|
|
102 | { |
|
|
103 | nreqs--; |
523 | --nreqs; |
104 | |
524 | |
105 | if (req->type == REQ_QUIT) |
525 | if (req->type == REQ_QUIT) |
106 | started--; |
526 | started--; |
|
|
527 | else if (req->type == REQ_GROUP && req->length) |
|
|
528 | { |
|
|
529 | req->fd = 1; /* mark request as delayed */ |
|
|
530 | continue; |
|
|
531 | } |
107 | else |
532 | else |
108 | { |
533 | { |
109 | int errorno = errno; |
|
|
110 | errno = req->errorno; |
|
|
111 | |
|
|
112 | if (req->type == REQ_READ) |
534 | if (req->type == REQ_READ) |
113 | SvCUR_set (req->data, req->dataoffset |
535 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
114 | + req->result > 0 ? req->result : 0); |
|
|
115 | |
536 | |
|
|
537 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
538 | SvREADONLY_off (req->data); |
|
|
539 | |
116 | if (req->data) |
540 | if (req->statdata) |
117 | SvREFCNT_dec (req->data); |
|
|
118 | |
|
|
119 | if (req->fh) |
|
|
120 | SvREFCNT_dec (req->fh); |
|
|
121 | |
|
|
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
123 | { |
541 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
542 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststatval = req->result; |
543 | PL_laststatval = req->result; |
126 | PL_statcache = *(req->statdata); |
544 | PL_statcache = *(req->statdata); |
127 | |
|
|
128 | Safefree (req->statdata); |
|
|
129 | } |
545 | } |
130 | |
546 | |
131 | ENTER; |
547 | req_invoke (req); |
132 | PUSHMARK (SP); |
|
|
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
134 | |
548 | |
135 | if (req->type == REQ_OPEN) |
|
|
136 | { |
|
|
137 | /* convert fd to fh */ |
|
|
138 | SV *fh; |
|
|
139 | |
|
|
140 | PUTBACK; |
|
|
141 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
142 | SPAGAIN; |
|
|
143 | |
|
|
144 | fh = SvREFCNT_inc (POPs); |
|
|
145 | |
|
|
146 | PUSHMARK (SP); |
|
|
147 | XPUSHs (sv_2mortal (fh)); |
|
|
148 | } |
|
|
149 | |
|
|
150 | if (SvOK (req->callback)) |
|
|
151 | { |
|
|
152 | PUTBACK; |
|
|
153 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
154 | SPAGAIN; |
|
|
155 | } |
|
|
156 | |
|
|
157 | LEAVE; |
|
|
158 | |
|
|
159 | if (req->callback) |
|
|
160 | SvREFCNT_dec (req->callback); |
|
|
161 | |
|
|
162 | errno = errorno; |
|
|
163 | count++; |
549 | count++; |
164 | } |
550 | } |
165 | |
551 | |
166 | prv = req; |
|
|
167 | req = req->next; |
|
|
168 | Safefree (prv); |
552 | req_free (req); |
169 | |
|
|
170 | /* TODO: croak on errors? */ |
|
|
171 | } |
553 | } |
172 | |
554 | |
173 | return count; |
555 | return count; |
174 | } |
556 | } |
175 | |
557 | |
176 | static void *aio_proc(void *arg); |
558 | static void *aio_proc(void *arg); |
177 | |
559 | |
178 | static void |
|
|
179 | start_thread (void) |
560 | static void start_thread (void) |
180 | { |
561 | { |
|
|
562 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
563 | |
|
|
564 | if (!wrk) |
|
|
565 | croak ("unable to allocate worker thread data"); |
|
|
566 | |
181 | sigset_t fullsigset, oldsigset; |
567 | sigset_t fullsigset, oldsigset; |
182 | pthread_t tid; |
|
|
183 | pthread_attr_t attr; |
568 | pthread_attr_t attr; |
184 | |
569 | |
185 | pthread_attr_init (&attr); |
570 | pthread_attr_init (&attr); |
186 | pthread_attr_setstacksize (&attr, STACKSIZE); |
571 | pthread_attr_setstacksize (&attr, STACKSIZE); |
187 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
572 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
188 | |
573 | |
189 | sigfillset (&fullsigset); |
574 | sigfillset (&fullsigset); |
|
|
575 | |
|
|
576 | LOCK (wrklock); |
190 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
577 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
191 | |
578 | |
192 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
579 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
580 | { |
|
|
581 | wrk->prev = &wrk_first; |
|
|
582 | wrk->next = wrk_first.next; |
|
|
583 | wrk_first.next->prev = wrk; |
|
|
584 | wrk_first.next = wrk; |
193 | started++; |
585 | started++; |
|
|
586 | } |
|
|
587 | else |
|
|
588 | free (wrk); |
194 | |
589 | |
195 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
590 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
591 | UNLOCK (wrklock); |
196 | } |
592 | } |
197 | |
593 | |
198 | static void |
594 | static void req_send (aio_req req) |
199 | send_req (aio_req req) |
|
|
200 | { |
595 | { |
|
|
596 | while (started < wanted && nreqs >= started) |
|
|
597 | start_thread (); |
|
|
598 | |
201 | nreqs++; |
599 | ++nreqs; |
202 | |
600 | |
203 | pthread_mutex_lock (&reqlock); |
601 | LOCK (reqlock); |
204 | |
602 | reqq_push (&req_queue, req); |
205 | req->next = 0; |
|
|
206 | |
|
|
207 | if (reqe) |
|
|
208 | { |
|
|
209 | reqe->next = req; |
|
|
210 | reqe = req; |
|
|
211 | } |
|
|
212 | else |
|
|
213 | reqe = reqs = req; |
|
|
214 | |
|
|
215 | pthread_cond_signal (&reqwait); |
603 | pthread_cond_signal (&reqwait); |
216 | pthread_mutex_unlock (&reqlock); |
604 | UNLOCK (reqlock); |
217 | |
605 | |
218 | while (nreqs > max_outstanding) |
606 | if (nreqs > max_outstanding) |
|
|
607 | for (;;) |
|
|
608 | { |
|
|
609 | poll_cb (); |
|
|
610 | |
|
|
611 | if (nreqs <= max_outstanding) |
|
|
612 | break; |
|
|
613 | |
|
|
614 | poll_wait (); |
|
|
615 | } |
|
|
616 | } |
|
|
617 | |
|
|
618 | static void end_thread (void) |
|
|
619 | { |
|
|
620 | aio_req req; |
|
|
621 | |
|
|
622 | Newz (0, req, 1, aio_cb); |
|
|
623 | |
|
|
624 | req->type = REQ_QUIT; |
|
|
625 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
626 | |
|
|
627 | req_send (req); |
|
|
628 | } |
|
|
629 | |
|
|
630 | static void min_parallel (int nthreads) |
|
|
631 | { |
|
|
632 | if (wanted < nthreads) |
|
|
633 | wanted = nthreads; |
|
|
634 | } |
|
|
635 | |
|
|
636 | static void max_parallel (int nthreads) |
|
|
637 | { |
|
|
638 | int cur = started; |
|
|
639 | |
|
|
640 | if (wanted > nthreads) |
|
|
641 | wanted = nthreads; |
|
|
642 | |
|
|
643 | while (cur > wanted) |
|
|
644 | { |
|
|
645 | end_thread (); |
|
|
646 | cur--; |
|
|
647 | } |
|
|
648 | |
|
|
649 | while (started > wanted) |
219 | { |
650 | { |
220 | poll_wait (); |
651 | poll_wait (); |
221 | poll_cb (); |
652 | poll_cb (); |
222 | } |
653 | } |
223 | } |
654 | } |
224 | |
655 | |
225 | static void |
656 | static void create_pipe () |
226 | end_thread (void) |
|
|
227 | { |
657 | { |
228 | aio_req req; |
658 | if (pipe (respipe)) |
229 | New (0, req, 1, aio_cb); |
659 | croak ("unable to initialize result pipe"); |
230 | req->type = REQ_QUIT; |
|
|
231 | |
660 | |
232 | send_req (req); |
661 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
233 | } |
662 | croak ("cannot set result pipe to nonblocking mode"); |
234 | |
663 | |
235 | static void * |
664 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
665 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
666 | } |
|
|
667 | |
|
|
668 | /*****************************************************************************/ |
|
|
669 | /* work around various missing functions */ |
|
|
670 | |
|
|
671 | #if !HAVE_PREADWRITE |
|
|
672 | # define pread aio_pread |
|
|
673 | # define pwrite aio_pwrite |
|
|
674 | |
|
|
675 | /* |
|
|
676 | * make our pread/pwrite safe against themselves, but not against |
|
|
677 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
678 | * but that's your problem, not mine. |
|
|
679 | */ |
|
|
680 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
681 | |
|
|
682 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
683 | { |
|
|
684 | ssize_t res; |
|
|
685 | off_t ooffset; |
|
|
686 | |
|
|
687 | LOCK (preadwritelock); |
|
|
688 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
689 | lseek (fd, offset, SEEK_SET); |
|
|
690 | res = read (fd, buf, count); |
|
|
691 | lseek (fd, ooffset, SEEK_SET); |
|
|
692 | UNLOCK (preadwritelock); |
|
|
693 | |
|
|
694 | return res; |
|
|
695 | } |
|
|
696 | |
|
|
697 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
698 | { |
|
|
699 | ssize_t res; |
|
|
700 | off_t ooffset; |
|
|
701 | |
|
|
702 | LOCK (preadwritelock); |
|
|
703 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
704 | lseek (fd, offset, SEEK_SET); |
|
|
705 | res = write (fd, buf, count); |
|
|
706 | lseek (fd, offset, SEEK_SET); |
|
|
707 | UNLOCK (preadwritelock); |
|
|
708 | |
|
|
709 | return res; |
|
|
710 | } |
|
|
711 | #endif |
|
|
712 | |
|
|
713 | #if !HAVE_FDATASYNC |
|
|
714 | # define fdatasync fsync |
|
|
715 | #endif |
|
|
716 | |
|
|
717 | #if !HAVE_READAHEAD |
|
|
718 | # define readahead aio_readahead |
|
|
719 | |
|
|
720 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
721 | { |
|
|
722 | dBUF; |
|
|
723 | |
|
|
724 | while (count > 0) |
|
|
725 | { |
|
|
726 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
|
|
727 | |
|
|
728 | pread (fd, aio_buf, len, offset); |
|
|
729 | offset += len; |
|
|
730 | count -= len; |
|
|
731 | } |
|
|
732 | |
|
|
733 | errno = 0; |
|
|
734 | } |
|
|
735 | #endif |
|
|
736 | |
|
|
737 | #if !HAVE_READDIR_R |
|
|
738 | # define readdir_r aio_readdir_r |
|
|
739 | |
|
|
740 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
741 | |
|
|
742 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
743 | { |
|
|
744 | struct dirent *e; |
|
|
745 | int errorno; |
|
|
746 | |
|
|
747 | LOCK (readdirlock); |
|
|
748 | |
|
|
749 | e = readdir (dirp); |
|
|
750 | errorno = errno; |
|
|
751 | |
|
|
752 | if (e) |
|
|
753 | { |
|
|
754 | *res = ent; |
|
|
755 | strcpy (ent->d_name, e->d_name); |
|
|
756 | } |
|
|
757 | else |
|
|
758 | *res = 0; |
|
|
759 | |
|
|
760 | UNLOCK (readdirlock); |
|
|
761 | |
|
|
762 | errno = errorno; |
|
|
763 | return e ? 0 : -1; |
|
|
764 | } |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | /* sendfile always needs emulation */ |
|
|
768 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
769 | { |
|
|
770 | ssize_t res; |
|
|
771 | |
|
|
772 | if (!count) |
|
|
773 | return 0; |
|
|
774 | |
|
|
775 | #if HAVE_SENDFILE |
|
|
776 | # if __linux |
|
|
777 | res = sendfile (ofd, ifd, &offset, count); |
|
|
778 | |
|
|
779 | # elif __freebsd |
|
|
780 | /* |
|
|
781 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
782 | * wasted on making it similar to other I/O functions. |
|
|
783 | */ |
|
|
784 | { |
|
|
785 | off_t sbytes; |
|
|
786 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
787 | |
|
|
788 | if (res < 0 && sbytes) |
|
|
789 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
790 | res = sbytes; |
|
|
791 | } |
|
|
792 | |
|
|
793 | # elif __hpux |
|
|
794 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
795 | |
|
|
796 | # elif __solaris |
|
|
797 | { |
|
|
798 | struct sendfilevec vec; |
|
|
799 | size_t sbytes; |
|
|
800 | |
|
|
801 | vec.sfv_fd = ifd; |
|
|
802 | vec.sfv_flag = 0; |
|
|
803 | vec.sfv_off = offset; |
|
|
804 | vec.sfv_len = count; |
|
|
805 | |
|
|
806 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
807 | |
|
|
808 | if (res < 0 && sbytes) |
|
|
809 | res = sbytes; |
|
|
810 | } |
|
|
811 | |
|
|
812 | # endif |
|
|
813 | #else |
|
|
814 | res = -1; |
|
|
815 | errno = ENOSYS; |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | if (res < 0 |
|
|
819 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
820 | #if __solaris |
|
|
821 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
822 | #endif |
|
|
823 | ) |
|
|
824 | ) |
|
|
825 | { |
|
|
826 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
827 | dBUF; |
|
|
828 | |
|
|
829 | res = 0; |
|
|
830 | |
|
|
831 | while (count) |
|
|
832 | { |
|
|
833 | ssize_t cnt; |
|
|
834 | |
|
|
835 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
836 | |
|
|
837 | if (cnt <= 0) |
|
|
838 | { |
|
|
839 | if (cnt && !res) res = -1; |
|
|
840 | break; |
|
|
841 | } |
|
|
842 | |
|
|
843 | cnt = write (ofd, aio_buf, cnt); |
|
|
844 | |
|
|
845 | if (cnt <= 0) |
|
|
846 | { |
|
|
847 | if (cnt && !res) res = -1; |
|
|
848 | break; |
|
|
849 | } |
|
|
850 | |
|
|
851 | offset += cnt; |
|
|
852 | res += cnt; |
|
|
853 | count -= cnt; |
|
|
854 | } |
|
|
855 | } |
|
|
856 | |
|
|
857 | return res; |
|
|
858 | } |
|
|
859 | |
|
|
860 | /* read a full directory */ |
|
|
861 | static void scandir_ (aio_req req, worker *self) |
|
|
862 | { |
|
|
863 | DIR *dirp; |
|
|
864 | union |
|
|
865 | { |
|
|
866 | struct dirent d; |
|
|
867 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
868 | } *u; |
|
|
869 | struct dirent *entp; |
|
|
870 | char *name, *names; |
|
|
871 | int memlen = 4096; |
|
|
872 | int memofs = 0; |
|
|
873 | int res = 0; |
|
|
874 | int errorno; |
|
|
875 | |
|
|
876 | LOCK (wrklock); |
|
|
877 | self->dirp = dirp = opendir (req->dataptr); |
|
|
878 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
879 | UNLOCK (wrklock); |
|
|
880 | |
|
|
881 | req->data2ptr = names = malloc (memlen); |
|
|
882 | |
|
|
883 | if (dirp && u && names) |
|
|
884 | for (;;) |
|
|
885 | { |
|
|
886 | errno = 0; |
|
|
887 | readdir_r (dirp, &u->d, &entp); |
|
|
888 | |
|
|
889 | if (!entp) |
|
|
890 | break; |
|
|
891 | |
|
|
892 | name = entp->d_name; |
|
|
893 | |
|
|
894 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
895 | { |
|
|
896 | int len = strlen (name) + 1; |
|
|
897 | |
|
|
898 | res++; |
|
|
899 | |
|
|
900 | while (memofs + len > memlen) |
|
|
901 | { |
|
|
902 | memlen *= 2; |
|
|
903 | LOCK (wrklock); |
|
|
904 | req->data2ptr = names = realloc (names, memlen); |
|
|
905 | UNLOCK (wrklock); |
|
|
906 | |
|
|
907 | if (!names) |
|
|
908 | break; |
|
|
909 | } |
|
|
910 | |
|
|
911 | memcpy (names + memofs, name, len); |
|
|
912 | memofs += len; |
|
|
913 | } |
|
|
914 | } |
|
|
915 | |
|
|
916 | if (errno) |
|
|
917 | res = -1; |
|
|
918 | |
|
|
919 | req->result = res; |
|
|
920 | } |
|
|
921 | |
|
|
922 | /*****************************************************************************/ |
|
|
923 | |
236 | aio_proc (void *thr_arg) |
924 | static void *aio_proc (void *thr_arg) |
237 | { |
925 | { |
238 | aio_req req; |
926 | aio_req req; |
239 | int type; |
927 | int type; |
|
|
928 | worker *self = (worker *)thr_arg; |
240 | |
929 | |
241 | do |
930 | do |
242 | { |
931 | { |
243 | pthread_mutex_lock (&reqlock); |
932 | LOCK (reqlock); |
244 | |
933 | |
245 | for (;;) |
934 | for (;;) |
246 | { |
935 | { |
247 | req = reqs; |
936 | self->req = req = reqq_shift (&req_queue); |
248 | |
|
|
249 | if (reqs) |
|
|
250 | { |
|
|
251 | reqs = reqs->next; |
|
|
252 | if (!reqs) reqe = 0; |
|
|
253 | } |
|
|
254 | |
937 | |
255 | if (req) |
938 | if (req) |
256 | break; |
939 | break; |
257 | |
940 | |
258 | pthread_cond_wait (&reqwait, &reqlock); |
941 | pthread_cond_wait (&reqwait, &reqlock); |
259 | } |
942 | } |
260 | |
943 | |
261 | pthread_mutex_unlock (&reqlock); |
944 | UNLOCK (reqlock); |
262 | |
945 | |
263 | errno = 0; /* strictly unnecessary */ |
946 | errno = 0; /* strictly unnecessary */ |
|
|
947 | type = req->type; /* remember type for QUIT check */ |
264 | |
948 | |
265 | type = req->type; |
949 | if (!(req->flags & FLAG_CANCELLED)) |
266 | |
|
|
267 | switch (type) |
950 | switch (type) |
268 | { |
951 | { |
269 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
952 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
270 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
953 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
271 | #if SYS_readahead |
954 | |
272 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
955 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
273 | #else |
956 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
274 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
275 | #endif |
|
|
276 | |
957 | |
277 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
958 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
278 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
959 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
279 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
960 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
280 | |
961 | |
281 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
962 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
282 | case REQ_CLOSE: req->result = close (req->fd); break; |
963 | case REQ_CLOSE: req->result = close (req->fd); break; |
283 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
964 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
284 | |
|
|
285 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
965 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
966 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
967 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
968 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
969 | |
286 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
970 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
971 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
972 | case REQ_READDIR: scandir_ (req, self); break; |
287 | |
973 | |
|
|
974 | case REQ_BUSY: |
|
|
975 | { |
|
|
976 | struct timeval tv; |
|
|
977 | |
|
|
978 | tv.tv_sec = req->fd; |
|
|
979 | tv.tv_usec = req->fd2; |
|
|
980 | |
|
|
981 | req->result = select (0, 0, 0, 0, &tv); |
|
|
982 | } |
|
|
983 | |
|
|
984 | case REQ_GROUP: |
|
|
985 | case REQ_NOP: |
288 | case REQ_QUIT: |
986 | case REQ_QUIT: |
289 | break; |
987 | break; |
290 | |
988 | |
291 | default: |
989 | default: |
292 | req->result = ENOSYS; |
990 | req->result = ENOSYS; |
293 | break; |
991 | break; |
294 | } |
992 | } |
295 | |
993 | |
296 | req->errorno = errno; |
994 | req->errorno = errno; |
297 | |
995 | |
298 | pthread_mutex_lock (&reslock); |
996 | LOCK (reslock); |
299 | |
997 | |
300 | req->next = 0; |
998 | if (!reqq_push (&res_queue, req)) |
301 | |
|
|
302 | if (rese) |
|
|
303 | { |
|
|
304 | rese->next = req; |
|
|
305 | rese = req; |
|
|
306 | } |
|
|
307 | else |
|
|
308 | { |
|
|
309 | rese = ress = req; |
|
|
310 | |
|
|
311 | /* write a dummy byte to the pipe so fh becomes ready */ |
999 | /* write a dummy byte to the pipe so fh becomes ready */ |
312 | write (respipe [1], &respipe, 1); |
1000 | write (respipe [1], &respipe, 1); |
313 | } |
|
|
314 | |
1001 | |
315 | pthread_mutex_unlock (&reslock); |
1002 | self->req = 0; |
|
|
1003 | worker_clear (self); |
|
|
1004 | |
|
|
1005 | UNLOCK (reslock); |
316 | } |
1006 | } |
317 | while (type != REQ_QUIT); |
1007 | while (type != REQ_QUIT); |
318 | |
1008 | |
|
|
1009 | LOCK (wrklock); |
|
|
1010 | worker_free (self); |
|
|
1011 | UNLOCK (wrklock); |
|
|
1012 | |
319 | return 0; |
1013 | return 0; |
320 | } |
1014 | } |
321 | |
1015 | |
|
|
1016 | /*****************************************************************************/ |
|
|
1017 | |
|
|
1018 | static void atfork_prepare (void) |
|
|
1019 | { |
|
|
1020 | LOCK (wrklock); |
|
|
1021 | LOCK (reqlock); |
|
|
1022 | LOCK (reslock); |
|
|
1023 | #if !HAVE_PREADWRITE |
|
|
1024 | LOCK (preadwritelock); |
|
|
1025 | #endif |
|
|
1026 | #if !HAVE_READDIR_R |
|
|
1027 | LOCK (readdirlock); |
|
|
1028 | #endif |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | static void atfork_parent (void) |
|
|
1032 | { |
|
|
1033 | #if !HAVE_READDIR_R |
|
|
1034 | UNLOCK (readdirlock); |
|
|
1035 | #endif |
|
|
1036 | #if !HAVE_PREADWRITE |
|
|
1037 | UNLOCK (preadwritelock); |
|
|
1038 | #endif |
|
|
1039 | UNLOCK (reslock); |
|
|
1040 | UNLOCK (reqlock); |
|
|
1041 | UNLOCK (wrklock); |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | static void atfork_child (void) |
|
|
1045 | { |
|
|
1046 | aio_req prv; |
|
|
1047 | |
|
|
1048 | while (prv = reqq_shift (&req_queue)) |
|
|
1049 | req_free (prv); |
|
|
1050 | |
|
|
1051 | while (prv = reqq_shift (&res_queue)) |
|
|
1052 | req_free (prv); |
|
|
1053 | |
|
|
1054 | while (wrk_first.next != &wrk_first) |
|
|
1055 | { |
|
|
1056 | worker *wrk = wrk_first.next; |
|
|
1057 | |
|
|
1058 | if (wrk->req) |
|
|
1059 | req_free (wrk->req); |
|
|
1060 | |
|
|
1061 | worker_clear (wrk); |
|
|
1062 | worker_free (wrk); |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | started = 0; |
|
|
1066 | nreqs = 0; |
|
|
1067 | |
|
|
1068 | close (respipe [0]); |
|
|
1069 | close (respipe [1]); |
|
|
1070 | create_pipe (); |
|
|
1071 | |
|
|
1072 | atfork_parent (); |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | #define dREQ \ |
|
|
1076 | aio_req req; \ |
|
|
1077 | int req_pri = next_pri; \ |
|
|
1078 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1079 | \ |
|
|
1080 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1081 | croak ("callback must be undef or of reference type"); \ |
|
|
1082 | \ |
|
|
1083 | Newz (0, req, 1, aio_cb); \ |
|
|
1084 | if (!req) \ |
|
|
1085 | croak ("out of memory during aio_req allocation"); \ |
|
|
1086 | \ |
|
|
1087 | req->callback = newSVsv (callback); \ |
|
|
1088 | req->pri = req_pri |
|
|
1089 | |
|
|
1090 | #define REQ_SEND \ |
|
|
1091 | req_send (req); \ |
|
|
1092 | \ |
|
|
1093 | if (GIMME_V != G_VOID) \ |
|
|
1094 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1095 | |
322 | MODULE = IO::AIO PACKAGE = IO::AIO |
1096 | MODULE = IO::AIO PACKAGE = IO::AIO |
323 | |
1097 | |
324 | PROTOTYPES: ENABLE |
1098 | PROTOTYPES: ENABLE |
325 | |
1099 | |
326 | BOOT: |
1100 | BOOT: |
327 | { |
1101 | { |
328 | if (pipe (respipe)) |
1102 | HV *stash = gv_stashpv ("IO::AIO", 1); |
329 | croak ("unable to initialize result pipe"); |
1103 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1104 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1105 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
330 | |
1106 | |
331 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1107 | create_pipe (); |
332 | croak ("cannot set result pipe to nonblocking mode"); |
1108 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
333 | |
|
|
334 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
335 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
336 | } |
1109 | } |
337 | |
1110 | |
338 | void |
1111 | void |
339 | min_parallel(nthreads) |
1112 | min_parallel (nthreads) |
340 | int nthreads |
1113 | int nthreads |
341 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
342 | CODE: |
|
|
343 | while (nthreads > started) |
|
|
344 | start_thread (); |
|
|
345 | |
1115 | |
346 | void |
1116 | void |
347 | max_parallel(nthreads) |
1117 | max_parallel (nthreads) |
348 | int nthreads |
1118 | int nthreads |
349 | PROTOTYPE: $ |
1119 | PROTOTYPE: $ |
350 | CODE: |
|
|
351 | { |
|
|
352 | int cur = started; |
|
|
353 | while (cur > nthreads) |
|
|
354 | { |
|
|
355 | end_thread (); |
|
|
356 | cur--; |
|
|
357 | } |
|
|
358 | |
|
|
359 | while (started > nthreads) |
|
|
360 | { |
|
|
361 | poll_wait (); |
|
|
362 | poll_cb (); |
|
|
363 | } |
|
|
364 | } |
|
|
365 | |
1120 | |
366 | int |
1121 | int |
367 | max_outstanding(nreqs) |
1122 | max_outstanding (nreqs) |
368 | int nreqs |
1123 | int nreqs |
369 | PROTOTYPE: $ |
1124 | PROTOTYPE: $ |
370 | CODE: |
1125 | CODE: |
371 | RETVAL = max_outstanding; |
1126 | RETVAL = max_outstanding; |
372 | max_outstanding = nreqs; |
1127 | max_outstanding = nreqs; |
373 | |
1128 | |
374 | void |
1129 | void |
375 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1130 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
376 | SV * pathname |
1131 | SV * pathname |
377 | int flags |
1132 | int flags |
378 | int mode |
1133 | int mode |
379 | SV * callback |
1134 | SV * callback |
380 | PROTOTYPE: $$$;$ |
1135 | PROTOTYPE: $$$;$ |
381 | CODE: |
1136 | PPCODE: |
382 | { |
1137 | { |
383 | aio_req req; |
1138 | dREQ; |
384 | |
|
|
385 | Newz (0, req, 1, aio_cb); |
|
|
386 | |
|
|
387 | if (!req) |
|
|
388 | croak ("out of memory during aio_req allocation"); |
|
|
389 | |
1139 | |
390 | req->type = REQ_OPEN; |
1140 | req->type = REQ_OPEN; |
391 | req->data = newSVsv (pathname); |
1141 | req->data = newSVsv (pathname); |
392 | req->dataptr = SvPV_nolen (req->data); |
1142 | req->dataptr = SvPVbyte_nolen (req->data); |
393 | req->fd = flags; |
1143 | req->fd = flags; |
394 | req->mode = mode; |
1144 | req->mode = mode; |
395 | req->callback = SvREFCNT_inc (callback); |
|
|
396 | |
1145 | |
397 | send_req (req); |
1146 | REQ_SEND; |
398 | } |
1147 | } |
399 | |
1148 | |
400 | void |
1149 | void |
401 | aio_close(fh,callback=&PL_sv_undef) |
1150 | aio_close (fh,callback=&PL_sv_undef) |
402 | SV * fh |
1151 | SV * fh |
403 | SV * callback |
1152 | SV * callback |
404 | PROTOTYPE: $;$ |
1153 | PROTOTYPE: $;$ |
405 | ALIAS: |
1154 | ALIAS: |
406 | aio_close = REQ_CLOSE |
1155 | aio_close = REQ_CLOSE |
407 | aio_fsync = REQ_FSYNC |
1156 | aio_fsync = REQ_FSYNC |
408 | aio_fdatasync = REQ_FDATASYNC |
1157 | aio_fdatasync = REQ_FDATASYNC |
409 | CODE: |
1158 | PPCODE: |
410 | { |
1159 | { |
411 | aio_req req; |
1160 | dREQ; |
412 | |
|
|
413 | Newz (0, req, 1, aio_cb); |
|
|
414 | |
|
|
415 | if (!req) |
|
|
416 | croak ("out of memory during aio_req allocation"); |
|
|
417 | |
1161 | |
418 | req->type = ix; |
1162 | req->type = ix; |
419 | req->fh = newSVsv (fh); |
1163 | req->fh = newSVsv (fh); |
420 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1164 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
421 | req->callback = SvREFCNT_inc (callback); |
|
|
422 | |
1165 | |
423 | send_req (req); |
1166 | REQ_SEND (req); |
424 | } |
1167 | } |
425 | |
1168 | |
426 | void |
1169 | void |
427 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1170 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
428 | SV * fh |
1171 | SV * fh |
429 | UV offset |
1172 | UV offset |
430 | IV length |
1173 | UV length |
431 | SV * data |
1174 | SV * data |
432 | IV dataoffset |
1175 | UV dataoffset |
433 | SV * callback |
1176 | SV * callback |
434 | ALIAS: |
1177 | ALIAS: |
435 | aio_read = REQ_READ |
1178 | aio_read = REQ_READ |
436 | aio_write = REQ_WRITE |
1179 | aio_write = REQ_WRITE |
437 | PROTOTYPE: $$$$$;$ |
1180 | PROTOTYPE: $$$$$;$ |
438 | CODE: |
1181 | PPCODE: |
439 | { |
1182 | { |
440 | aio_req req; |
1183 | aio_req req; |
441 | STRLEN svlen; |
1184 | STRLEN svlen; |
442 | char *svptr = SvPV (data, svlen); |
1185 | char *svptr = SvPVbyte (data, svlen); |
443 | |
1186 | |
444 | SvUPGRADE (data, SVt_PV); |
1187 | SvUPGRADE (data, SVt_PV); |
445 | SvPOK_on (data); |
1188 | SvPOK_on (data); |
446 | |
1189 | |
447 | if (dataoffset < 0) |
1190 | if (dataoffset < 0) |
… | |
… | |
463 | } |
1206 | } |
464 | |
1207 | |
465 | if (length < 0) |
1208 | if (length < 0) |
466 | croak ("length must not be negative"); |
1209 | croak ("length must not be negative"); |
467 | |
1210 | |
468 | Newz (0, req, 1, aio_cb); |
1211 | { |
|
|
1212 | dREQ; |
469 | |
1213 | |
470 | if (!req) |
|
|
471 | croak ("out of memory during aio_req allocation"); |
|
|
472 | |
|
|
473 | req->type = ix; |
1214 | req->type = ix; |
474 | req->fh = newSVsv (fh); |
1215 | req->fh = newSVsv (fh); |
475 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1216 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
476 | : IoOFP (sv_2io (fh))); |
1217 | : IoOFP (sv_2io (fh))); |
477 | req->offset = offset; |
1218 | req->offset = offset; |
|
|
1219 | req->length = length; |
|
|
1220 | req->data = SvREFCNT_inc (data); |
|
|
1221 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1222 | |
|
|
1223 | if (!SvREADONLY (data)) |
|
|
1224 | { |
|
|
1225 | SvREADONLY_on (data); |
|
|
1226 | req->data2ptr = (void *)data; |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | REQ_SEND; |
|
|
1230 | } |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | void |
|
|
1234 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1235 | SV * out_fh |
|
|
1236 | SV * in_fh |
|
|
1237 | UV in_offset |
|
|
1238 | UV length |
|
|
1239 | SV * callback |
|
|
1240 | PROTOTYPE: $$$$;$ |
|
|
1241 | PPCODE: |
|
|
1242 | { |
|
|
1243 | dREQ; |
|
|
1244 | |
|
|
1245 | req->type = REQ_SENDFILE; |
|
|
1246 | req->fh = newSVsv (out_fh); |
|
|
1247 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1248 | req->fh2 = newSVsv (in_fh); |
|
|
1249 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1250 | req->offset = in_offset; |
478 | req->length = length; |
1251 | req->length = length; |
479 | req->data = SvREFCNT_inc (data); |
|
|
480 | req->dataptr = (char *)svptr + dataoffset; |
|
|
481 | req->callback = SvREFCNT_inc (callback); |
|
|
482 | |
1252 | |
483 | send_req (req); |
1253 | REQ_SEND; |
484 | } |
1254 | } |
485 | |
1255 | |
486 | void |
1256 | void |
487 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1257 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
488 | SV * fh |
1258 | SV * fh |
489 | UV offset |
1259 | UV offset |
490 | IV length |
1260 | IV length |
491 | SV * callback |
1261 | SV * callback |
492 | PROTOTYPE: $$$;$ |
1262 | PROTOTYPE: $$$;$ |
493 | CODE: |
1263 | PPCODE: |
494 | { |
1264 | { |
495 | aio_req req; |
1265 | dREQ; |
496 | |
|
|
497 | if (length < 0) |
|
|
498 | croak ("length must not be negative"); |
|
|
499 | |
|
|
500 | Newz (0, req, 1, aio_cb); |
|
|
501 | |
|
|
502 | if (!req) |
|
|
503 | croak ("out of memory during aio_req allocation"); |
|
|
504 | |
1266 | |
505 | req->type = REQ_READAHEAD; |
1267 | req->type = REQ_READAHEAD; |
506 | req->fh = newSVsv (fh); |
1268 | req->fh = newSVsv (fh); |
507 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1269 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
508 | req->offset = offset; |
1270 | req->offset = offset; |
509 | req->length = length; |
1271 | req->length = length; |
510 | req->callback = SvREFCNT_inc (callback); |
|
|
511 | |
1272 | |
512 | send_req (req); |
1273 | REQ_SEND; |
513 | } |
1274 | } |
514 | |
1275 | |
515 | void |
1276 | void |
516 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1277 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
517 | SV * fh_or_path |
1278 | SV * fh_or_path |
518 | SV * callback |
1279 | SV * callback |
519 | ALIAS: |
1280 | ALIAS: |
520 | aio_stat = REQ_STAT |
1281 | aio_stat = REQ_STAT |
521 | aio_lstat = REQ_LSTAT |
1282 | aio_lstat = REQ_LSTAT |
522 | CODE: |
1283 | PPCODE: |
523 | { |
1284 | { |
524 | aio_req req; |
1285 | dREQ; |
525 | |
|
|
526 | Newz (0, req, 1, aio_cb); |
|
|
527 | |
|
|
528 | if (!req) |
|
|
529 | croak ("out of memory during aio_req allocation"); |
|
|
530 | |
1286 | |
531 | New (0, req->statdata, 1, Stat_t); |
1287 | New (0, req->statdata, 1, Stat_t); |
532 | |
|
|
533 | if (!req->statdata) |
1288 | if (!req->statdata) |
|
|
1289 | { |
|
|
1290 | req_free (req); |
534 | croak ("out of memory during aio_req->statdata allocation"); |
1291 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1292 | } |
535 | |
1293 | |
536 | if (SvPOK (fh_or_path)) |
1294 | if (SvPOK (fh_or_path)) |
537 | { |
1295 | { |
538 | req->type = ix; |
1296 | req->type = ix; |
539 | req->data = newSVsv (fh_or_path); |
1297 | req->data = newSVsv (fh_or_path); |
540 | req->dataptr = SvPV_nolen (req->data); |
1298 | req->dataptr = SvPVbyte_nolen (req->data); |
541 | } |
1299 | } |
542 | else |
1300 | else |
543 | { |
1301 | { |
544 | req->type = REQ_FSTAT; |
1302 | req->type = REQ_FSTAT; |
545 | req->fh = newSVsv (fh_or_path); |
1303 | req->fh = newSVsv (fh_or_path); |
546 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1304 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
547 | } |
1305 | } |
548 | |
1306 | |
549 | req->callback = SvREFCNT_inc (callback); |
1307 | REQ_SEND; |
550 | |
|
|
551 | send_req (req); |
|
|
552 | } |
1308 | } |
553 | |
1309 | |
554 | void |
1310 | void |
555 | aio_unlink(pathname,callback=&PL_sv_undef) |
1311 | aio_unlink (pathname,callback=&PL_sv_undef) |
556 | SV * pathname |
1312 | SV * pathname |
557 | SV * callback |
1313 | SV * callback |
|
|
1314 | ALIAS: |
|
|
1315 | aio_unlink = REQ_UNLINK |
|
|
1316 | aio_rmdir = REQ_RMDIR |
|
|
1317 | aio_readdir = REQ_READDIR |
558 | CODE: |
1318 | PPCODE: |
559 | { |
1319 | { |
560 | aio_req req; |
1320 | dREQ; |
561 | |
1321 | |
562 | Newz (0, req, 1, aio_cb); |
1322 | req->type = ix; |
|
|
1323 | req->data = newSVsv (pathname); |
|
|
1324 | req->dataptr = SvPVbyte_nolen (req->data); |
563 | |
1325 | |
564 | if (!req) |
1326 | REQ_SEND; |
565 | croak ("out of memory during aio_req allocation"); |
1327 | } |
|
|
1328 | |
|
|
1329 | void |
|
|
1330 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1331 | SV * oldpath |
|
|
1332 | SV * newpath |
|
|
1333 | SV * callback |
|
|
1334 | ALIAS: |
|
|
1335 | aio_link = REQ_LINK |
|
|
1336 | aio_symlink = REQ_SYMLINK |
|
|
1337 | aio_rename = REQ_RENAME |
|
|
1338 | PPCODE: |
|
|
1339 | { |
|
|
1340 | dREQ; |
566 | |
1341 | |
567 | req->type = REQ_UNLINK; |
1342 | req->type = ix; |
|
|
1343 | req->fh = newSVsv (oldpath); |
|
|
1344 | req->data2ptr = SvPVbyte_nolen (req->fh); |
568 | req->data = newSVsv (pathname); |
1345 | req->data = newSVsv (newpath); |
569 | req->dataptr = SvPV_nolen (req->data); |
1346 | req->dataptr = SvPVbyte_nolen (req->data); |
570 | req->callback = SvREFCNT_inc (callback); |
|
|
571 | |
1347 | |
572 | send_req (req); |
1348 | REQ_SEND; |
573 | } |
1349 | } |
574 | |
1350 | |
575 | void |
1351 | void |
|
|
1352 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1353 | double delay |
|
|
1354 | SV * callback |
|
|
1355 | PPCODE: |
|
|
1356 | { |
|
|
1357 | dREQ; |
|
|
1358 | |
|
|
1359 | req->type = REQ_BUSY; |
|
|
1360 | req->fd = delay < 0. ? 0 : delay; |
|
|
1361 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1362 | |
|
|
1363 | REQ_SEND; |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | void |
|
|
1367 | aio_group (callback=&PL_sv_undef) |
|
|
1368 | SV * callback |
|
|
1369 | PROTOTYPE: ;$ |
|
|
1370 | PPCODE: |
|
|
1371 | { |
|
|
1372 | dREQ; |
|
|
1373 | |
|
|
1374 | req->type = REQ_GROUP; |
|
|
1375 | req_send (req); |
|
|
1376 | |
|
|
1377 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1378 | } |
|
|
1379 | |
|
|
1380 | void |
|
|
1381 | aio_nop (callback=&PL_sv_undef) |
|
|
1382 | SV * callback |
|
|
1383 | PPCODE: |
|
|
1384 | { |
|
|
1385 | dREQ; |
|
|
1386 | |
|
|
1387 | req->type = REQ_NOP; |
|
|
1388 | |
|
|
1389 | REQ_SEND; |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | void |
|
|
1393 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1394 | CODE: |
|
|
1395 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1396 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1397 | next_pri = pri + PRI_BIAS; |
|
|
1398 | |
|
|
1399 | void |
|
|
1400 | aioreq_nice (int nice = 0) |
|
|
1401 | CODE: |
|
|
1402 | nice = next_pri - nice; |
|
|
1403 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1404 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1405 | next_pri = nice + PRI_BIAS; |
|
|
1406 | |
|
|
1407 | void |
576 | flush() |
1408 | flush () |
577 | PROTOTYPE: |
1409 | PROTOTYPE: |
578 | CODE: |
1410 | CODE: |
579 | while (nreqs) |
1411 | while (nreqs) |
580 | { |
1412 | { |
581 | poll_wait (); |
1413 | poll_wait (); |
… | |
… | |
621 | CODE: |
1453 | CODE: |
622 | RETVAL = nreqs; |
1454 | RETVAL = nreqs; |
623 | OUTPUT: |
1455 | OUTPUT: |
624 | RETVAL |
1456 | RETVAL |
625 | |
1457 | |
|
|
1458 | PROTOTYPES: DISABLE |
|
|
1459 | |
|
|
1460 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1461 | |
|
|
1462 | void |
|
|
1463 | cancel (aio_req_ornot req) |
|
|
1464 | CODE: |
|
|
1465 | req_cancel (req); |
|
|
1466 | |
|
|
1467 | void |
|
|
1468 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1469 | CODE: |
|
|
1470 | SvREFCNT_dec (req->callback); |
|
|
1471 | req->callback = newSVsv (callback); |
|
|
1472 | |
|
|
1473 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1474 | |
|
|
1475 | void |
|
|
1476 | add (aio_req grp, ...) |
|
|
1477 | PPCODE: |
|
|
1478 | { |
|
|
1479 | int i; |
|
|
1480 | aio_req req; |
|
|
1481 | |
|
|
1482 | if (grp->fd == 2) |
|
|
1483 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1484 | |
|
|
1485 | for (i = 1; i < items; ++i ) |
|
|
1486 | { |
|
|
1487 | if (GIMME_V != G_VOID) |
|
|
1488 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1489 | |
|
|
1490 | req = SvAIO_REQ (ST (i)); |
|
|
1491 | |
|
|
1492 | if (req) |
|
|
1493 | { |
|
|
1494 | ++grp->length; |
|
|
1495 | req->grp = grp; |
|
|
1496 | |
|
|
1497 | req->grp_prev = 0; |
|
|
1498 | req->grp_next = grp->grp_first; |
|
|
1499 | |
|
|
1500 | if (grp->grp_first) |
|
|
1501 | grp->grp_first->grp_prev = req; |
|
|
1502 | |
|
|
1503 | grp->grp_first = req; |
|
|
1504 | } |
|
|
1505 | } |
|
|
1506 | } |
|
|
1507 | |
|
|
1508 | void |
|
|
1509 | cancel_subs (aio_req_ornot req) |
|
|
1510 | CODE: |
|
|
1511 | req_cancel_subs (req); |
|
|
1512 | |
|
|
1513 | void |
|
|
1514 | result (aio_req grp, ...) |
|
|
1515 | CODE: |
|
|
1516 | { |
|
|
1517 | int i; |
|
|
1518 | AV *av = newAV (); |
|
|
1519 | |
|
|
1520 | for (i = 1; i < items; ++i ) |
|
|
1521 | av_push (av, newSVsv (ST (i))); |
|
|
1522 | |
|
|
1523 | SvREFCNT_dec (grp->data); |
|
|
1524 | grp->data = (SV *)av; |
|
|
1525 | } |
|
|
1526 | |
|
|
1527 | void |
|
|
1528 | limit (aio_req grp, int limit) |
|
|
1529 | CODE: |
|
|
1530 | grp->fd2 = limit; |
|
|
1531 | aio_grp_feed (grp); |
|
|
1532 | |
|
|
1533 | void |
|
|
1534 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1535 | CODE: |
|
|
1536 | { |
|
|
1537 | SvREFCNT_dec (grp->fh2); |
|
|
1538 | grp->fh2 = newSVsv (callback); |
|
|
1539 | |
|
|
1540 | if (grp->fd2 <= 0) |
|
|
1541 | grp->fd2 = 2; |
|
|
1542 | |
|
|
1543 | aio_grp_feed (grp); |
|
|
1544 | } |
|
|
1545 | |