|
|
1 | /* solaris */ |
|
|
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
|
|
3 | |
|
|
4 | #if __linux && !defined(_GNU_SOURCE) |
|
|
5 | # define _GNU_SOURCE |
|
|
6 | #endif |
|
|
7 | |
|
|
8 | /* just in case */ |
1 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
|
|
10 | |
2 | #include <errno.h> |
11 | #include <errno.h> |
3 | |
12 | |
4 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
5 | #include "perl.h" |
14 | #include "perl.h" |
6 | #include "XSUB.h" |
15 | #include "XSUB.h" |
… | |
… | |
8 | #include "autoconf/config.h" |
17 | #include "autoconf/config.h" |
9 | |
18 | |
10 | #include <pthread.h> |
19 | #include <pthread.h> |
11 | |
20 | |
12 | #include <stddef.h> |
21 | #include <stddef.h> |
|
|
22 | #include <errno.h> |
|
|
23 | #include <sys/time.h> |
|
|
24 | #include <sys/select.h> |
13 | #include <sys/types.h> |
25 | #include <sys/types.h> |
14 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
15 | #include <limits.h> |
27 | #include <limits.h> |
16 | #include <unistd.h> |
28 | #include <unistd.h> |
17 | #include <fcntl.h> |
29 | #include <fcntl.h> |
… | |
… | |
31 | # else |
43 | # else |
32 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
33 | # endif |
45 | # endif |
34 | #endif |
46 | #endif |
35 | |
47 | |
|
|
48 | /* number of seconds after which idle threads exit */ |
|
|
49 | #define IDLE_TIMEOUT 10 |
|
|
50 | |
|
|
51 | /* used for struct dirent, AIX doesn't provide it */ |
|
|
52 | #ifndef NAME_MAX |
|
|
53 | # define NAME_MAX 4096 |
|
|
54 | #endif |
|
|
55 | |
|
|
56 | #ifndef PTHREAD_STACK_MIN |
|
|
57 | /* care for broken platforms, e.g. windows */ |
|
|
58 | # define PTHREAD_STACK_MIN 16384 |
|
|
59 | #endif |
|
|
60 | |
36 | #if __ia64 |
61 | #if __ia64 |
37 | # define STACKSIZE 65536 |
62 | # define STACKSIZE 65536 |
|
|
63 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
|
|
64 | # define STACKSIZE PTHREAD_STACK_MIN |
38 | #else |
65 | #else |
39 | # define STACKSIZE 8192 |
66 | # define STACKSIZE 16384 |
40 | #endif |
67 | #endif |
|
|
68 | |
|
|
69 | /* wether word reads are potentially non-atomic. |
|
|
70 | * this is conservatice, likely most arches this runs |
|
|
71 | * on have atomic word read/writes. |
|
|
72 | */ |
|
|
73 | #ifndef WORDACCESS_UNSAFE |
|
|
74 | # if __i386 || __x86_64 |
|
|
75 | # define WORDACCESS_UNSAFE 0 |
|
|
76 | # else |
|
|
77 | # define WORDACCESS_UNSAFE 1 |
|
|
78 | # endif |
|
|
79 | #endif |
|
|
80 | |
|
|
81 | /* buffer size for various temporary buffers */ |
|
|
82 | #define AIO_BUFSIZE 65536 |
|
|
83 | |
|
|
84 | #define dBUF \ |
|
|
85 | char *aio_buf; \ |
|
|
86 | LOCK (wrklock); \ |
|
|
87 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
|
|
88 | UNLOCK (wrklock); \ |
|
|
89 | if (!aio_buf) \ |
|
|
90 | return -1; |
|
|
91 | |
|
|
92 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
41 | |
93 | |
42 | enum { |
94 | enum { |
43 | REQ_QUIT, |
95 | REQ_QUIT, |
44 | REQ_OPEN, REQ_CLOSE, |
96 | REQ_OPEN, REQ_CLOSE, |
45 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
97 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
46 | REQ_SENDFILE, |
98 | REQ_SENDFILE, |
47 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
99 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
48 | REQ_FSYNC, REQ_FDATASYNC, |
100 | REQ_FSYNC, REQ_FDATASYNC, |
49 | REQ_UNLINK, REQ_RMDIR, |
101 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
50 | REQ_READDIR, |
102 | REQ_MKNOD, REQ_READDIR, |
51 | REQ_SYMLINK, |
103 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
|
|
104 | REQ_GROUP, REQ_NOP, |
|
|
105 | REQ_BUSY, |
52 | }; |
106 | }; |
53 | |
107 | |
|
|
108 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
|
|
109 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
|
|
110 | |
54 | typedef struct aio_cb { |
111 | typedef struct aio_cb |
|
|
112 | { |
55 | struct aio_cb *volatile next; |
113 | struct aio_cb *volatile next; |
56 | |
114 | |
|
|
115 | SV *callback, *fh; |
|
|
116 | SV *sv1, *sv2; |
|
|
117 | void *ptr1, *ptr2; |
|
|
118 | off_t offs; |
|
|
119 | size_t size; |
|
|
120 | ssize_t result; |
|
|
121 | |
|
|
122 | STRLEN stroffset; |
57 | int type; |
123 | int type; |
58 | |
124 | int int1, int2; |
59 | /* should receive a cleanup, with unions */ |
125 | int errorno; |
60 | int fd, fd2; |
|
|
61 | off_t offset; |
|
|
62 | size_t length; |
|
|
63 | ssize_t result; |
|
|
64 | mode_t mode; /* open */ |
126 | mode_t mode; /* open */ |
65 | int errorno; |
|
|
66 | SV *data, *callback; |
|
|
67 | SV *fh, *fh2; |
|
|
68 | void *dataptr, *data2ptr; |
|
|
69 | STRLEN dataoffset; |
|
|
70 | |
127 | |
71 | Stat_t *statdata; |
128 | unsigned char flags; |
|
|
129 | unsigned char pri; |
|
|
130 | |
|
|
131 | SV *self; /* the perl counterpart of this request, if any */ |
|
|
132 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
72 | } aio_cb; |
133 | } aio_cb; |
73 | |
134 | |
|
|
135 | enum { |
|
|
136 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
|
|
137 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
|
|
138 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
|
|
139 | }; |
|
|
140 | |
74 | typedef aio_cb *aio_req; |
141 | typedef aio_cb *aio_req; |
|
|
142 | typedef aio_cb *aio_req_ornot; |
75 | |
143 | |
|
|
144 | enum { |
|
|
145 | PRI_MIN = -4, |
|
|
146 | PRI_MAX = 4, |
|
|
147 | |
|
|
148 | DEFAULT_PRI = 0, |
|
|
149 | PRI_BIAS = -PRI_MIN, |
|
|
150 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
|
|
151 | }; |
|
|
152 | |
|
|
153 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
|
|
154 | |
|
|
155 | static unsigned int max_poll_time = 0; |
|
|
156 | static unsigned int max_poll_reqs = 0; |
|
|
157 | |
|
|
158 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
|
|
159 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
|
|
160 | { |
|
|
161 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
|
|
162 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
|
|
163 | } |
|
|
164 | |
|
|
165 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
|
|
166 | |
76 | static int started, wanted; |
167 | static unsigned int started, idle, wanted; |
77 | static volatile int nreqs; |
168 | |
78 | static int max_outstanding = 1<<30; |
169 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
|
|
170 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
|
|
171 | #else |
|
|
172 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
|
|
173 | #endif |
|
|
174 | |
|
|
175 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
|
|
176 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
|
|
177 | |
|
|
178 | /* worker threads management */ |
|
|
179 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
|
|
180 | |
|
|
181 | typedef struct worker { |
|
|
182 | /* locked by wrklock */ |
|
|
183 | struct worker *prev, *next; |
|
|
184 | |
|
|
185 | pthread_t tid; |
|
|
186 | |
|
|
187 | /* locked by reslock, reqlock or wrklock */ |
|
|
188 | aio_req req; /* currently processed request */ |
|
|
189 | void *dbuf; |
|
|
190 | DIR *dirp; |
|
|
191 | } worker; |
|
|
192 | |
|
|
193 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
|
|
194 | |
|
|
195 | static void worker_clear (worker *wrk) |
|
|
196 | { |
|
|
197 | if (wrk->dirp) |
|
|
198 | { |
|
|
199 | closedir (wrk->dirp); |
|
|
200 | wrk->dirp = 0; |
|
|
201 | } |
|
|
202 | |
|
|
203 | if (wrk->dbuf) |
|
|
204 | { |
|
|
205 | free (wrk->dbuf); |
|
|
206 | wrk->dbuf = 0; |
|
|
207 | } |
|
|
208 | } |
|
|
209 | |
|
|
210 | static void worker_free (worker *wrk) |
|
|
211 | { |
|
|
212 | wrk->next->prev = wrk->prev; |
|
|
213 | wrk->prev->next = wrk->next; |
|
|
214 | |
|
|
215 | free (wrk); |
|
|
216 | } |
|
|
217 | |
|
|
218 | static volatile unsigned int nreqs, nready, npending; |
|
|
219 | static volatile unsigned int max_idle = 4; |
|
|
220 | static volatile unsigned int max_outstanding = 0xffffffff; |
79 | static int respipe [2]; |
221 | static int respipe [2]; |
80 | |
222 | |
81 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
223 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
82 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
224 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
83 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
225 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
84 | |
226 | |
85 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
227 | #if WORDACCESS_UNSAFE |
86 | static volatile aio_req ress, rese; /* queue start, queue end */ |
|
|
87 | |
228 | |
|
|
229 | static unsigned int get_nready () |
|
|
230 | { |
|
|
231 | unsigned int retval; |
|
|
232 | |
|
|
233 | LOCK (reqlock); |
|
|
234 | retval = nready; |
|
|
235 | UNLOCK (reqlock); |
|
|
236 | |
|
|
237 | return retval; |
|
|
238 | } |
|
|
239 | |
|
|
240 | static unsigned int get_npending () |
|
|
241 | { |
|
|
242 | unsigned int retval; |
|
|
243 | |
|
|
244 | LOCK (reslock); |
|
|
245 | retval = npending; |
|
|
246 | UNLOCK (reslock); |
|
|
247 | |
|
|
248 | return retval; |
|
|
249 | } |
|
|
250 | |
|
|
251 | static unsigned int get_nthreads () |
|
|
252 | { |
|
|
253 | unsigned int retval; |
|
|
254 | |
|
|
255 | LOCK (wrklock); |
|
|
256 | retval = started; |
|
|
257 | UNLOCK (wrklock); |
|
|
258 | |
|
|
259 | return retval; |
|
|
260 | } |
|
|
261 | |
|
|
262 | #else |
|
|
263 | |
|
|
264 | # define get_nready() nready |
|
|
265 | # define get_npending() npending |
|
|
266 | # define get_nthreads() started |
|
|
267 | |
|
|
268 | #endif |
|
|
269 | |
|
|
270 | /* |
|
|
271 | * a somewhat faster data structure might be nice, but |
|
|
272 | * with 8 priorities this actually needs <20 insns |
|
|
273 | * per shift, the most expensive operation. |
|
|
274 | */ |
|
|
275 | typedef struct { |
|
|
276 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
|
|
277 | int size; |
|
|
278 | } reqq; |
|
|
279 | |
|
|
280 | static reqq req_queue; |
|
|
281 | static reqq res_queue; |
|
|
282 | |
|
|
283 | int reqq_push (reqq *q, aio_req req) |
|
|
284 | { |
|
|
285 | int pri = req->pri; |
|
|
286 | req->next = 0; |
|
|
287 | |
|
|
288 | if (q->qe[pri]) |
|
|
289 | { |
|
|
290 | q->qe[pri]->next = req; |
|
|
291 | q->qe[pri] = req; |
|
|
292 | } |
|
|
293 | else |
|
|
294 | q->qe[pri] = q->qs[pri] = req; |
|
|
295 | |
|
|
296 | return q->size++; |
|
|
297 | } |
|
|
298 | |
|
|
299 | aio_req reqq_shift (reqq *q) |
|
|
300 | { |
|
|
301 | int pri; |
|
|
302 | |
|
|
303 | if (!q->size) |
|
|
304 | return 0; |
|
|
305 | |
|
|
306 | --q->size; |
|
|
307 | |
|
|
308 | for (pri = NUM_PRI; pri--; ) |
|
|
309 | { |
|
|
310 | aio_req req = q->qs[pri]; |
|
|
311 | |
|
|
312 | if (req) |
|
|
313 | { |
|
|
314 | if (!(q->qs[pri] = req->next)) |
|
|
315 | q->qe[pri] = 0; |
|
|
316 | |
|
|
317 | return req; |
|
|
318 | } |
|
|
319 | } |
|
|
320 | |
|
|
321 | abort (); |
|
|
322 | } |
|
|
323 | |
|
|
324 | static int poll_cb (); |
|
|
325 | static void req_invoke (aio_req req); |
|
|
326 | static void req_free (aio_req req); |
|
|
327 | static void req_cancel (aio_req req); |
|
|
328 | |
|
|
329 | /* must be called at most once */ |
|
|
330 | static SV *req_sv (aio_req req, const char *klass) |
|
|
331 | { |
|
|
332 | if (!req->self) |
|
|
333 | { |
|
|
334 | req->self = (SV *)newHV (); |
|
|
335 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
|
|
336 | } |
|
|
337 | |
|
|
338 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
|
|
339 | } |
|
|
340 | |
|
|
341 | static aio_req SvAIO_REQ (SV *sv) |
|
|
342 | { |
|
|
343 | MAGIC *mg; |
|
|
344 | |
|
|
345 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
|
|
346 | croak ("object of class " AIO_REQ_KLASS " expected"); |
|
|
347 | |
|
|
348 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
|
|
349 | |
|
|
350 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
|
351 | } |
|
|
352 | |
|
|
353 | static void aio_grp_feed (aio_req grp) |
|
|
354 | { |
|
|
355 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
|
|
356 | { |
|
|
357 | int old_len = grp->size; |
|
|
358 | |
|
|
359 | if (grp->sv2 && SvOK (grp->sv2)) |
|
|
360 | { |
|
|
361 | dSP; |
|
|
362 | |
|
|
363 | ENTER; |
|
|
364 | SAVETMPS; |
|
|
365 | PUSHMARK (SP); |
|
|
366 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
367 | PUTBACK; |
|
|
368 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
|
|
369 | SPAGAIN; |
|
|
370 | FREETMPS; |
|
|
371 | LEAVE; |
|
|
372 | } |
|
|
373 | |
|
|
374 | /* stop if no progress has been made */ |
|
|
375 | if (old_len == grp->size) |
|
|
376 | { |
|
|
377 | SvREFCNT_dec (grp->sv2); |
|
|
378 | grp->sv2 = 0; |
|
|
379 | break; |
|
|
380 | } |
|
|
381 | } |
|
|
382 | } |
|
|
383 | |
|
|
384 | static void aio_grp_dec (aio_req grp) |
|
|
385 | { |
|
|
386 | --grp->size; |
|
|
387 | |
|
|
388 | /* call feeder, if applicable */ |
|
|
389 | aio_grp_feed (grp); |
|
|
390 | |
|
|
391 | /* finish, if done */ |
|
|
392 | if (!grp->size && grp->int1) |
|
|
393 | { |
|
|
394 | req_invoke (grp); |
|
|
395 | req_free (grp); |
|
|
396 | } |
|
|
397 | } |
|
|
398 | |
|
|
399 | static void req_invoke (aio_req req) |
|
|
400 | { |
|
|
401 | dSP; |
|
|
402 | |
|
|
403 | if (req->flags & FLAG_SV1_RO_OFF) |
|
|
404 | SvREADONLY_off (req->sv1); |
|
|
405 | |
|
|
406 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
|
|
407 | { |
|
|
408 | ENTER; |
|
|
409 | SAVETMPS; |
|
|
410 | PUSHMARK (SP); |
|
|
411 | EXTEND (SP, 1); |
|
|
412 | |
|
|
413 | switch (req->type) |
|
|
414 | { |
|
|
415 | case REQ_READDIR: |
|
|
416 | { |
|
|
417 | SV *rv = &PL_sv_undef; |
|
|
418 | |
|
|
419 | if (req->result >= 0) |
|
|
420 | { |
|
|
421 | int i; |
|
|
422 | char *buf = req->ptr2; |
|
|
423 | AV *av = newAV (); |
|
|
424 | |
|
|
425 | av_extend (av, req->result - 1); |
|
|
426 | |
|
|
427 | for (i = 0; i < req->result; ++i) |
|
|
428 | { |
|
|
429 | SV *sv = newSVpv (buf, 0); |
|
|
430 | |
|
|
431 | av_store (av, i, sv); |
|
|
432 | buf += SvCUR (sv) + 1; |
|
|
433 | } |
|
|
434 | |
|
|
435 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
436 | } |
|
|
437 | |
|
|
438 | PUSHs (rv); |
|
|
439 | } |
|
|
440 | break; |
|
|
441 | |
|
|
442 | case REQ_OPEN: |
|
|
443 | { |
|
|
444 | /* convert fd to fh */ |
|
|
445 | SV *fh; |
|
|
446 | |
|
|
447 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
448 | PUTBACK; |
|
|
449 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
450 | SPAGAIN; |
|
|
451 | |
|
|
452 | fh = SvREFCNT_inc (POPs); |
|
|
453 | |
|
|
454 | PUSHMARK (SP); |
|
|
455 | XPUSHs (sv_2mortal (fh)); |
|
|
456 | } |
|
|
457 | break; |
|
|
458 | |
|
|
459 | case REQ_GROUP: |
|
|
460 | req->int1 = 2; /* mark group as finished */ |
|
|
461 | |
|
|
462 | if (req->sv1) |
|
|
463 | { |
|
|
464 | int i; |
|
|
465 | AV *av = (AV *)req->sv1; |
|
|
466 | |
|
|
467 | EXTEND (SP, AvFILL (av) + 1); |
|
|
468 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
469 | PUSHs (*av_fetch (av, i, 0)); |
|
|
470 | } |
|
|
471 | break; |
|
|
472 | |
|
|
473 | case REQ_NOP: |
|
|
474 | case REQ_BUSY: |
|
|
475 | break; |
|
|
476 | |
|
|
477 | case REQ_READLINK: |
|
|
478 | if (req->result > 0) |
|
|
479 | { |
|
|
480 | SvCUR_set (req->sv1, req->result); |
|
|
481 | *SvEND (req->sv1) = 0; |
|
|
482 | PUSHs (req->sv1); |
|
|
483 | } |
|
|
484 | break; |
|
|
485 | |
|
|
486 | case REQ_STAT: |
|
|
487 | case REQ_LSTAT: |
|
|
488 | case REQ_FSTAT: |
|
|
489 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
490 | PL_laststatval = req->result; |
|
|
491 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
492 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
493 | break; |
|
|
494 | |
|
|
495 | case REQ_READ: |
|
|
496 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
497 | *SvEND (req->sv1) = 0; |
|
|
498 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
499 | break; |
|
|
500 | |
|
|
501 | default: |
|
|
502 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
503 | break; |
|
|
504 | } |
|
|
505 | |
|
|
506 | errno = req->errorno; |
|
|
507 | |
|
|
508 | PUTBACK; |
|
|
509 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
510 | SPAGAIN; |
|
|
511 | |
|
|
512 | FREETMPS; |
|
|
513 | LEAVE; |
|
|
514 | } |
|
|
515 | |
|
|
516 | if (req->grp) |
|
|
517 | { |
|
|
518 | aio_req grp = req->grp; |
|
|
519 | |
|
|
520 | /* unlink request */ |
|
|
521 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
522 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
523 | |
|
|
524 | if (grp->grp_first == req) |
|
|
525 | grp->grp_first = req->grp_next; |
|
|
526 | |
|
|
527 | aio_grp_dec (grp); |
|
|
528 | } |
|
|
529 | |
|
|
530 | if (SvTRUE (ERRSV)) |
|
|
531 | { |
|
|
532 | req_free (req); |
|
|
533 | croak (0); |
|
|
534 | } |
|
|
535 | } |
|
|
536 | |
88 | static void free_req (aio_req req) |
537 | static void req_free (aio_req req) |
89 | { |
538 | { |
90 | if (req->data) |
|
|
91 | SvREFCNT_dec (req->data); |
|
|
92 | |
|
|
93 | if (req->fh) |
539 | if (req->self) |
|
|
540 | { |
|
|
541 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
542 | SvREFCNT_dec (req->self); |
|
|
543 | } |
|
|
544 | |
94 | SvREFCNT_dec (req->fh); |
545 | SvREFCNT_dec (req->fh); |
95 | |
546 | SvREFCNT_dec (req->sv1); |
96 | if (req->fh2) |
|
|
97 | SvREFCNT_dec (req->fh2); |
547 | SvREFCNT_dec (req->sv2); |
98 | |
|
|
99 | if (req->statdata) |
|
|
100 | Safefree (req->statdata); |
|
|
101 | |
|
|
102 | if (req->callback) |
|
|
103 | SvREFCNT_dec (req->callback); |
548 | SvREFCNT_dec (req->callback); |
104 | |
549 | |
105 | if (req->type == REQ_READDIR && req->result >= 0) |
550 | if (req->flags & FLAG_PTR2_FREE) |
106 | free (req->data2ptr); |
551 | free (req->ptr2); |
107 | |
552 | |
108 | Safefree (req); |
553 | Safefree (req); |
109 | } |
554 | } |
110 | |
555 | |
111 | static void |
556 | static void req_cancel_subs (aio_req grp) |
112 | poll_wait () |
|
|
113 | { |
557 | { |
114 | if (nreqs && !ress) |
558 | aio_req sub; |
|
|
559 | |
|
|
560 | if (grp->type != REQ_GROUP) |
|
|
561 | return; |
|
|
562 | |
|
|
563 | SvREFCNT_dec (grp->sv2); |
|
|
564 | grp->sv2 = 0; |
|
|
565 | |
|
|
566 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
567 | req_cancel (sub); |
|
|
568 | } |
|
|
569 | |
|
|
570 | static void req_cancel (aio_req req) |
|
|
571 | { |
|
|
572 | req->flags |= FLAG_CANCELLED; |
|
|
573 | |
|
|
574 | req_cancel_subs (req); |
|
|
575 | } |
|
|
576 | |
|
|
577 | static void *aio_proc(void *arg); |
|
|
578 | |
|
|
579 | static void start_thread (void) |
|
|
580 | { |
|
|
581 | sigset_t fullsigset, oldsigset; |
|
|
582 | pthread_attr_t attr; |
|
|
583 | |
|
|
584 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
585 | |
|
|
586 | if (!wrk) |
|
|
587 | croak ("unable to allocate worker thread data"); |
|
|
588 | |
|
|
589 | pthread_attr_init (&attr); |
|
|
590 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
591 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
592 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
593 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
594 | #endif |
|
|
595 | |
|
|
596 | sigfillset (&fullsigset); |
|
|
597 | |
|
|
598 | LOCK (wrklock); |
|
|
599 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
600 | |
|
|
601 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
115 | { |
602 | { |
|
|
603 | wrk->prev = &wrk_first; |
|
|
604 | wrk->next = wrk_first.next; |
|
|
605 | wrk_first.next->prev = wrk; |
|
|
606 | wrk_first.next = wrk; |
|
|
607 | ++started; |
|
|
608 | } |
|
|
609 | else |
|
|
610 | free (wrk); |
|
|
611 | |
|
|
612 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
613 | UNLOCK (wrklock); |
|
|
614 | } |
|
|
615 | |
|
|
616 | static void maybe_start_thread () |
|
|
617 | { |
|
|
618 | if (get_nthreads () >= wanted) |
|
|
619 | return; |
|
|
620 | |
|
|
621 | /* todo: maybe use idle here, but might be less exact */ |
|
|
622 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
623 | return; |
|
|
624 | |
|
|
625 | start_thread (); |
|
|
626 | } |
|
|
627 | |
|
|
628 | static void req_send (aio_req req) |
|
|
629 | { |
|
|
630 | ++nreqs; |
|
|
631 | |
|
|
632 | LOCK (reqlock); |
|
|
633 | ++nready; |
|
|
634 | reqq_push (&req_queue, req); |
|
|
635 | pthread_cond_signal (&reqwait); |
|
|
636 | UNLOCK (reqlock); |
|
|
637 | |
|
|
638 | maybe_start_thread (); |
|
|
639 | } |
|
|
640 | |
|
|
641 | static void end_thread (void) |
|
|
642 | { |
|
|
643 | aio_req req; |
|
|
644 | |
|
|
645 | Newz (0, req, 1, aio_cb); |
|
|
646 | |
|
|
647 | req->type = REQ_QUIT; |
|
|
648 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
649 | |
|
|
650 | LOCK (reqlock); |
|
|
651 | reqq_push (&req_queue, req); |
|
|
652 | pthread_cond_signal (&reqwait); |
|
|
653 | UNLOCK (reqlock); |
|
|
654 | |
|
|
655 | LOCK (wrklock); |
|
|
656 | --started; |
|
|
657 | UNLOCK (wrklock); |
|
|
658 | } |
|
|
659 | |
|
|
660 | static void set_max_idle (int nthreads) |
|
|
661 | { |
|
|
662 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
663 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
664 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
665 | } |
|
|
666 | |
|
|
667 | static void min_parallel (int nthreads) |
|
|
668 | { |
|
|
669 | if (wanted < nthreads) |
|
|
670 | wanted = nthreads; |
|
|
671 | } |
|
|
672 | |
|
|
673 | static void max_parallel (int nthreads) |
|
|
674 | { |
|
|
675 | if (wanted > nthreads) |
|
|
676 | wanted = nthreads; |
|
|
677 | |
|
|
678 | while (started > wanted) |
|
|
679 | end_thread (); |
|
|
680 | } |
|
|
681 | |
|
|
682 | static void poll_wait () |
|
|
683 | { |
116 | fd_set rfd; |
684 | fd_set rfd; |
|
|
685 | |
|
|
686 | while (nreqs) |
|
|
687 | { |
|
|
688 | int size; |
|
|
689 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
690 | size = res_queue.size; |
|
|
691 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
692 | |
|
|
693 | if (size) |
|
|
694 | return; |
|
|
695 | |
|
|
696 | maybe_start_thread (); |
|
|
697 | |
117 | FD_ZERO(&rfd); |
698 | FD_ZERO(&rfd); |
118 | FD_SET(respipe [0], &rfd); |
699 | FD_SET(respipe [0], &rfd); |
119 | |
700 | |
120 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
701 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
121 | } |
702 | } |
122 | } |
703 | } |
123 | |
704 | |
124 | static int |
705 | static int poll_cb () |
125 | poll_cb () |
|
|
126 | { |
706 | { |
127 | dSP; |
707 | dSP; |
128 | int count = 0; |
708 | int count = 0; |
|
|
709 | int maxreqs = max_poll_reqs; |
129 | int do_croak = 0; |
710 | int do_croak = 0; |
|
|
711 | struct timeval tv_start, tv_now; |
130 | aio_req req; |
712 | aio_req req; |
|
|
713 | |
|
|
714 | if (max_poll_time) |
|
|
715 | gettimeofday (&tv_start, 0); |
131 | |
716 | |
132 | for (;;) |
717 | for (;;) |
133 | { |
718 | { |
134 | pthread_mutex_lock (&reslock); |
719 | for (;;) |
135 | req = ress; |
|
|
136 | |
|
|
137 | if (req) |
|
|
138 | { |
720 | { |
139 | ress = req->next; |
721 | maybe_start_thread (); |
140 | |
722 | |
|
|
723 | LOCK (reslock); |
|
|
724 | req = reqq_shift (&res_queue); |
|
|
725 | |
141 | if (!ress) |
726 | if (req) |
142 | { |
727 | { |
|
|
728 | --npending; |
|
|
729 | |
|
|
730 | if (!res_queue.size) |
|
|
731 | { |
143 | /* read any signals sent by the worker threads */ |
732 | /* read any signals sent by the worker threads */ |
144 | char buf [32]; |
733 | char buf [32]; |
145 | while (read (respipe [0], buf, 32) == 32) |
734 | while (read (respipe [0], buf, 32) == 32) |
|
|
735 | ; |
146 | ; |
736 | } |
147 | |
|
|
148 | rese = 0; |
|
|
149 | } |
737 | } |
150 | } |
|
|
151 | |
738 | |
152 | pthread_mutex_unlock (&reslock); |
739 | UNLOCK (reslock); |
153 | |
740 | |
154 | if (!req) |
741 | if (!req) |
155 | break; |
742 | break; |
156 | |
743 | |
157 | nreqs--; |
744 | --nreqs; |
158 | |
745 | |
159 | if (req->type == REQ_QUIT) |
|
|
160 | started--; |
|
|
161 | else |
|
|
162 | { |
|
|
163 | int errorno = errno; |
|
|
164 | errno = req->errorno; |
|
|
165 | |
|
|
166 | if (req->type == REQ_READ) |
746 | if (req->type == REQ_GROUP && req->size) |
167 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
168 | |
|
|
169 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
170 | SvREADONLY_off (req->data); |
|
|
171 | |
|
|
172 | if (req->statdata) |
|
|
173 | { |
747 | { |
174 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
748 | req->int1 = 1; /* mark request as delayed */ |
175 | PL_laststatval = req->result; |
749 | continue; |
176 | PL_statcache = *(req->statdata); |
|
|
177 | } |
|
|
178 | |
|
|
179 | ENTER; |
|
|
180 | PUSHMARK (SP); |
|
|
181 | |
|
|
182 | if (req->type == REQ_READDIR) |
|
|
183 | { |
|
|
184 | SV *rv = &PL_sv_undef; |
|
|
185 | |
|
|
186 | if (req->result >= 0) |
|
|
187 | { |
|
|
188 | char *buf = req->data2ptr; |
|
|
189 | AV *av = newAV (); |
|
|
190 | |
|
|
191 | while (req->result) |
|
|
192 | { |
|
|
193 | SV *sv = newSVpv (buf, 0); |
|
|
194 | |
|
|
195 | av_push (av, sv); |
|
|
196 | buf += SvCUR (sv) + 1; |
|
|
197 | req->result--; |
|
|
198 | } |
|
|
199 | |
|
|
200 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
201 | } |
|
|
202 | |
|
|
203 | XPUSHs (rv); |
|
|
204 | } |
750 | } |
205 | else |
751 | else |
206 | { |
752 | { |
207 | XPUSHs (sv_2mortal (newSViv (req->result))); |
753 | req_invoke (req); |
208 | |
754 | |
209 | if (req->type == REQ_OPEN) |
755 | count++; |
210 | { |
|
|
211 | /* convert fd to fh */ |
|
|
212 | SV *fh; |
|
|
213 | |
|
|
214 | PUTBACK; |
|
|
215 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
216 | SPAGAIN; |
|
|
217 | |
|
|
218 | fh = SvREFCNT_inc (POPs); |
|
|
219 | |
|
|
220 | PUSHMARK (SP); |
|
|
221 | XPUSHs (sv_2mortal (fh)); |
|
|
222 | } |
|
|
223 | } |
756 | } |
224 | |
757 | |
225 | if (SvOK (req->callback)) |
758 | req_free (req); |
|
|
759 | |
|
|
760 | if (maxreqs && !--maxreqs) |
|
|
761 | break; |
|
|
762 | |
|
|
763 | if (max_poll_time) |
226 | { |
764 | { |
227 | PUTBACK; |
765 | gettimeofday (&tv_now, 0); |
228 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
229 | SPAGAIN; |
|
|
230 | |
766 | |
231 | if (SvTRUE (ERRSV)) |
767 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
232 | { |
768 | break; |
233 | free_req (req); |
|
|
234 | croak (0); |
|
|
235 | } |
|
|
236 | } |
769 | } |
237 | |
|
|
238 | LEAVE; |
|
|
239 | |
|
|
240 | errno = errorno; |
|
|
241 | count++; |
|
|
242 | } |
770 | } |
243 | |
771 | |
244 | free_req (req); |
772 | if (nreqs <= max_outstanding) |
|
|
773 | break; |
|
|
774 | |
|
|
775 | poll_wait (); |
|
|
776 | |
|
|
777 | ++maxreqs; |
245 | } |
778 | } |
246 | |
779 | |
247 | return count; |
780 | return count; |
248 | } |
|
|
249 | |
|
|
250 | static void *aio_proc(void *arg); |
|
|
251 | |
|
|
252 | static void |
|
|
253 | start_thread (void) |
|
|
254 | { |
|
|
255 | sigset_t fullsigset, oldsigset; |
|
|
256 | pthread_t tid; |
|
|
257 | pthread_attr_t attr; |
|
|
258 | |
|
|
259 | pthread_attr_init (&attr); |
|
|
260 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
261 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
262 | |
|
|
263 | sigfillset (&fullsigset); |
|
|
264 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
265 | |
|
|
266 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
267 | started++; |
|
|
268 | |
|
|
269 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
270 | } |
|
|
271 | |
|
|
272 | static void |
|
|
273 | send_req (aio_req req) |
|
|
274 | { |
|
|
275 | while (started < wanted && nreqs >= started) |
|
|
276 | start_thread (); |
|
|
277 | |
|
|
278 | nreqs++; |
|
|
279 | |
|
|
280 | pthread_mutex_lock (&reqlock); |
|
|
281 | |
|
|
282 | req->next = 0; |
|
|
283 | |
|
|
284 | if (reqe) |
|
|
285 | { |
|
|
286 | reqe->next = req; |
|
|
287 | reqe = req; |
|
|
288 | } |
|
|
289 | else |
|
|
290 | reqe = reqs = req; |
|
|
291 | |
|
|
292 | pthread_cond_signal (&reqwait); |
|
|
293 | pthread_mutex_unlock (&reqlock); |
|
|
294 | |
|
|
295 | if (nreqs > max_outstanding) |
|
|
296 | for (;;) |
|
|
297 | { |
|
|
298 | poll_cb (); |
|
|
299 | |
|
|
300 | if (nreqs <= max_outstanding) |
|
|
301 | break; |
|
|
302 | |
|
|
303 | poll_wait (); |
|
|
304 | } |
|
|
305 | } |
|
|
306 | |
|
|
307 | static void |
|
|
308 | end_thread (void) |
|
|
309 | { |
|
|
310 | aio_req req; |
|
|
311 | Newz (0, req, 1, aio_cb); |
|
|
312 | req->type = REQ_QUIT; |
|
|
313 | |
|
|
314 | send_req (req); |
|
|
315 | } |
|
|
316 | |
|
|
317 | static void min_parallel (int nthreads) |
|
|
318 | { |
|
|
319 | if (wanted < nthreads) |
|
|
320 | wanted = nthreads; |
|
|
321 | } |
|
|
322 | |
|
|
323 | static void max_parallel (int nthreads) |
|
|
324 | { |
|
|
325 | int cur = started; |
|
|
326 | |
|
|
327 | if (wanted > nthreads) |
|
|
328 | wanted = nthreads; |
|
|
329 | |
|
|
330 | while (cur > wanted) |
|
|
331 | { |
|
|
332 | end_thread (); |
|
|
333 | cur--; |
|
|
334 | } |
|
|
335 | |
|
|
336 | while (started > wanted) |
|
|
337 | { |
|
|
338 | poll_wait (); |
|
|
339 | poll_cb (); |
|
|
340 | } |
|
|
341 | } |
781 | } |
342 | |
782 | |
343 | static void create_pipe () |
783 | static void create_pipe () |
344 | { |
784 | { |
345 | if (pipe (respipe)) |
785 | if (pipe (respipe)) |
… | |
… | |
364 | * normal read/write by using a mutex. slows down execution a lot, |
804 | * normal read/write by using a mutex. slows down execution a lot, |
365 | * but that's your problem, not mine. |
805 | * but that's your problem, not mine. |
366 | */ |
806 | */ |
367 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
807 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
368 | |
808 | |
369 | static ssize_t |
809 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
370 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
371 | { |
810 | { |
372 | ssize_t res; |
811 | ssize_t res; |
373 | off_t ooffset; |
812 | off_t ooffset; |
374 | |
813 | |
375 | pthread_mutex_lock (&preadwritelock); |
814 | LOCK (preadwritelock); |
376 | ooffset = lseek (fd, 0, SEEK_CUR); |
815 | ooffset = lseek (fd, 0, SEEK_CUR); |
377 | lseek (fd, offset, SEEK_SET); |
816 | lseek (fd, offset, SEEK_SET); |
378 | res = read (fd, buf, count); |
817 | res = read (fd, buf, count); |
379 | lseek (fd, ooffset, SEEK_SET); |
818 | lseek (fd, ooffset, SEEK_SET); |
380 | pthread_mutex_unlock (&preadwritelock); |
819 | UNLOCK (preadwritelock); |
381 | |
820 | |
382 | return res; |
821 | return res; |
383 | } |
822 | } |
384 | |
823 | |
385 | static ssize_t |
|
|
386 | pwrite (int fd, void *buf, size_t count, off_t offset) |
824 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
387 | { |
825 | { |
388 | ssize_t res; |
826 | ssize_t res; |
389 | off_t ooffset; |
827 | off_t ooffset; |
390 | |
828 | |
391 | pthread_mutex_lock (&preadwritelock); |
829 | LOCK (preadwritelock); |
392 | ooffset = lseek (fd, 0, SEEK_CUR); |
830 | ooffset = lseek (fd, 0, SEEK_CUR); |
393 | lseek (fd, offset, SEEK_SET); |
831 | lseek (fd, offset, SEEK_SET); |
394 | res = write (fd, buf, count); |
832 | res = write (fd, buf, count); |
395 | lseek (fd, offset, SEEK_SET); |
833 | lseek (fd, offset, SEEK_SET); |
396 | pthread_mutex_unlock (&preadwritelock); |
834 | UNLOCK (preadwritelock); |
397 | |
835 | |
398 | return res; |
836 | return res; |
399 | } |
837 | } |
400 | #endif |
838 | #endif |
401 | |
839 | |
402 | #if !HAVE_FDATASYNC |
840 | #if !HAVE_FDATASYNC |
403 | # define fdatasync fsync |
841 | # define fdatasync fsync |
404 | #endif |
842 | #endif |
405 | |
843 | |
406 | #if !HAVE_READAHEAD |
844 | #if !HAVE_READAHEAD |
407 | # define readahead aio_readahead |
845 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
408 | |
846 | |
409 | static ssize_t |
847 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
410 | readahead (int fd, off_t offset, size_t count) |
|
|
411 | { |
848 | { |
412 | char readahead_buf[4096]; |
849 | dBUF; |
413 | |
850 | |
414 | while (count > 0) |
851 | while (count > 0) |
415 | { |
852 | { |
416 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
853 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
417 | |
854 | |
418 | pread (fd, readahead_buf, len, offset); |
855 | pread (fd, aio_buf, len, offset); |
419 | offset += len; |
856 | offset += len; |
420 | count -= len; |
857 | count -= len; |
421 | } |
858 | } |
422 | |
859 | |
423 | errno = 0; |
860 | errno = 0; |
424 | } |
861 | } |
|
|
862 | |
425 | #endif |
863 | #endif |
426 | |
864 | |
427 | #if !HAVE_READDIR_R |
865 | #if !HAVE_READDIR_R |
428 | # define readdir_r aio_readdir_r |
866 | # define readdir_r aio_readdir_r |
429 | |
867 | |
430 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
868 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
431 | |
869 | |
432 | static int |
|
|
433 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
870 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
434 | { |
871 | { |
435 | struct dirent *e; |
872 | struct dirent *e; |
436 | int errorno; |
873 | int errorno; |
437 | |
874 | |
438 | pthread_mutex_lock (&readdirlock); |
875 | LOCK (readdirlock); |
439 | |
876 | |
440 | e = readdir (dirp); |
877 | e = readdir (dirp); |
441 | errorno = errno; |
878 | errorno = errno; |
442 | |
879 | |
443 | if (e) |
880 | if (e) |
… | |
… | |
446 | strcpy (ent->d_name, e->d_name); |
883 | strcpy (ent->d_name, e->d_name); |
447 | } |
884 | } |
448 | else |
885 | else |
449 | *res = 0; |
886 | *res = 0; |
450 | |
887 | |
451 | pthread_mutex_unlock (&readdirlock); |
888 | UNLOCK (readdirlock); |
452 | |
889 | |
453 | errno = errorno; |
890 | errno = errorno; |
454 | return e ? 0 : -1; |
891 | return e ? 0 : -1; |
455 | } |
892 | } |
456 | #endif |
893 | #endif |
457 | |
894 | |
458 | /* sendfile always needs emulation */ |
895 | /* sendfile always needs emulation */ |
459 | static ssize_t |
|
|
460 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
896 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
461 | { |
897 | { |
462 | ssize_t res; |
898 | ssize_t res; |
463 | |
899 | |
464 | if (!count) |
900 | if (!count) |
465 | return 0; |
901 | return 0; |
… | |
… | |
476 | { |
912 | { |
477 | off_t sbytes; |
913 | off_t sbytes; |
478 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
914 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
479 | |
915 | |
480 | if (res < 0 && sbytes) |
916 | if (res < 0 && sbytes) |
481 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
917 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
482 | res = sbytes; |
918 | res = sbytes; |
483 | } |
919 | } |
484 | |
920 | |
485 | # elif __hpux |
921 | # elif __hpux |
486 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
922 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
514 | #endif |
950 | #endif |
515 | ) |
951 | ) |
516 | ) |
952 | ) |
517 | { |
953 | { |
518 | /* emulate sendfile. this is a major pain in the ass */ |
954 | /* emulate sendfile. this is a major pain in the ass */ |
519 | char buf[4096]; |
955 | dBUF; |
|
|
956 | |
520 | res = 0; |
957 | res = 0; |
521 | |
958 | |
522 | while (count) |
959 | while (count) |
523 | { |
960 | { |
524 | ssize_t cnt; |
961 | ssize_t cnt; |
525 | |
962 | |
526 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
963 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
527 | |
964 | |
528 | if (cnt <= 0) |
965 | if (cnt <= 0) |
529 | { |
966 | { |
530 | if (cnt && !res) res = -1; |
967 | if (cnt && !res) res = -1; |
531 | break; |
968 | break; |
532 | } |
969 | } |
533 | |
970 | |
534 | cnt = write (ofd, buf, cnt); |
971 | cnt = write (ofd, aio_buf, cnt); |
535 | |
972 | |
536 | if (cnt <= 0) |
973 | if (cnt <= 0) |
537 | { |
974 | { |
538 | if (cnt && !res) res = -1; |
975 | if (cnt && !res) res = -1; |
539 | break; |
976 | break; |
… | |
… | |
547 | |
984 | |
548 | return res; |
985 | return res; |
549 | } |
986 | } |
550 | |
987 | |
551 | /* read a full directory */ |
988 | /* read a full directory */ |
552 | static int |
989 | static void scandir_ (aio_req req, worker *self) |
553 | scandir_ (const char *path, void **namesp) |
|
|
554 | { |
990 | { |
555 | DIR *dirp = opendir (path); |
991 | DIR *dirp; |
556 | union |
992 | union |
557 | { |
993 | { |
558 | struct dirent d; |
994 | struct dirent d; |
559 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
995 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
560 | } u; |
996 | } *u; |
561 | struct dirent *entp; |
997 | struct dirent *entp; |
562 | char *name, *names; |
998 | char *name, *names; |
563 | int memlen = 4096; |
999 | int memlen = 4096; |
564 | int memofs = 0; |
1000 | int memofs = 0; |
565 | int res = 0; |
1001 | int res = 0; |
566 | int errorno; |
1002 | int errorno; |
567 | |
1003 | |
568 | if (!dirp) |
1004 | LOCK (wrklock); |
569 | return -1; |
1005 | self->dirp = dirp = opendir (req->ptr1); |
570 | |
1006 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1007 | req->flags |= FLAG_PTR2_FREE; |
571 | names = malloc (memlen); |
1008 | req->ptr2 = names = malloc (memlen); |
|
|
1009 | UNLOCK (wrklock); |
|
|
1010 | |
|
|
1011 | if (dirp && u && names) |
|
|
1012 | for (;;) |
|
|
1013 | { |
|
|
1014 | errno = 0; |
|
|
1015 | readdir_r (dirp, &u->d, &entp); |
|
|
1016 | |
|
|
1017 | if (!entp) |
|
|
1018 | break; |
|
|
1019 | |
|
|
1020 | name = entp->d_name; |
|
|
1021 | |
|
|
1022 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1023 | { |
|
|
1024 | int len = strlen (name) + 1; |
|
|
1025 | |
|
|
1026 | res++; |
|
|
1027 | |
|
|
1028 | while (memofs + len > memlen) |
|
|
1029 | { |
|
|
1030 | memlen *= 2; |
|
|
1031 | LOCK (wrklock); |
|
|
1032 | req->ptr2 = names = realloc (names, memlen); |
|
|
1033 | UNLOCK (wrklock); |
|
|
1034 | |
|
|
1035 | if (!names) |
|
|
1036 | break; |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | memcpy (names + memofs, name, len); |
|
|
1040 | memofs += len; |
|
|
1041 | } |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | if (errno) |
|
|
1045 | res = -1; |
|
|
1046 | |
|
|
1047 | req->result = res; |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /*****************************************************************************/ |
|
|
1051 | |
|
|
1052 | static void *aio_proc (void *thr_arg) |
|
|
1053 | { |
|
|
1054 | aio_req req; |
|
|
1055 | struct timespec ts; |
|
|
1056 | worker *self = (worker *)thr_arg; |
|
|
1057 | |
|
|
1058 | /* try to distribute timeouts somewhat evenly */ |
|
|
1059 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1060 | * (1000000000UL / 1024UL); |
572 | |
1061 | |
573 | for (;;) |
1062 | for (;;) |
574 | { |
1063 | { |
575 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1064 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
576 | |
1065 | |
577 | if (!entp) |
1066 | LOCK (reqlock); |
578 | break; |
|
|
579 | |
|
|
580 | name = entp->d_name; |
|
|
581 | |
|
|
582 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
583 | { |
|
|
584 | int len = strlen (name) + 1; |
|
|
585 | |
|
|
586 | res++; |
|
|
587 | |
|
|
588 | while (memofs + len > memlen) |
|
|
589 | { |
|
|
590 | memlen *= 2; |
|
|
591 | names = realloc (names, memlen); |
|
|
592 | if (!names) |
|
|
593 | break; |
|
|
594 | } |
|
|
595 | |
|
|
596 | memcpy (names + memofs, name, len); |
|
|
597 | memofs += len; |
|
|
598 | } |
|
|
599 | } |
|
|
600 | |
|
|
601 | errorno = errno; |
|
|
602 | closedir (dirp); |
|
|
603 | |
|
|
604 | if (errorno) |
|
|
605 | { |
|
|
606 | free (names); |
|
|
607 | errno = errorno; |
|
|
608 | res = -1; |
|
|
609 | } |
|
|
610 | |
|
|
611 | *namesp = (void *)names; |
|
|
612 | return res; |
|
|
613 | } |
|
|
614 | |
|
|
615 | /*****************************************************************************/ |
|
|
616 | |
|
|
617 | static void * |
|
|
618 | aio_proc (void *thr_arg) |
|
|
619 | { |
|
|
620 | aio_req req; |
|
|
621 | int type; |
|
|
622 | |
|
|
623 | do |
|
|
624 | { |
|
|
625 | pthread_mutex_lock (&reqlock); |
|
|
626 | |
1067 | |
627 | for (;;) |
1068 | for (;;) |
628 | { |
1069 | { |
629 | req = reqs; |
1070 | self->req = req = reqq_shift (&req_queue); |
630 | |
|
|
631 | if (reqs) |
|
|
632 | { |
|
|
633 | reqs = reqs->next; |
|
|
634 | if (!reqs) reqe = 0; |
|
|
635 | } |
|
|
636 | |
1071 | |
637 | if (req) |
1072 | if (req) |
638 | break; |
1073 | break; |
639 | |
1074 | |
|
|
1075 | ++idle; |
|
|
1076 | |
|
|
1077 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1078 | == ETIMEDOUT) |
|
|
1079 | { |
|
|
1080 | if (idle > max_idle) |
|
|
1081 | { |
|
|
1082 | --idle; |
|
|
1083 | UNLOCK (reqlock); |
|
|
1084 | LOCK (wrklock); |
|
|
1085 | --started; |
|
|
1086 | UNLOCK (wrklock); |
|
|
1087 | goto quit; |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | /* we are allowed to idle, so do so without any timeout */ |
640 | pthread_cond_wait (&reqwait, &reqlock); |
1091 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1092 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | --idle; |
641 | } |
1096 | } |
642 | |
1097 | |
643 | pthread_mutex_unlock (&reqlock); |
1098 | --nready; |
|
|
1099 | |
|
|
1100 | UNLOCK (reqlock); |
644 | |
1101 | |
645 | errno = 0; /* strictly unnecessary */ |
1102 | errno = 0; /* strictly unnecessary */ |
646 | |
1103 | |
647 | type = req->type; |
1104 | if (!(req->flags & FLAG_CANCELLED)) |
648 | |
|
|
649 | switch (type) |
1105 | switch (req->type) |
650 | { |
1106 | { |
651 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1107 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
652 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1108 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
653 | |
1109 | |
654 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1110 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
655 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1111 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
656 | |
1112 | |
657 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1113 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
658 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1114 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
659 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1115 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
660 | |
1116 | |
661 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1117 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
662 | case REQ_CLOSE: req->result = close (req->fd); break; |
1118 | case REQ_CLOSE: req->result = close (req->int1); break; |
663 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1119 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
664 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1120 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1121 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1122 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
665 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1123 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1124 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1125 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
666 | |
1126 | |
667 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1127 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
668 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1128 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
669 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1129 | case REQ_READDIR: scandir_ (req, self); break; |
670 | |
1130 | |
|
|
1131 | case REQ_BUSY: |
|
|
1132 | { |
|
|
1133 | struct timeval tv; |
|
|
1134 | |
|
|
1135 | tv.tv_sec = req->int1; |
|
|
1136 | tv.tv_usec = req->int2; |
|
|
1137 | |
|
|
1138 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | case REQ_GROUP: |
|
|
1142 | case REQ_NOP: |
|
|
1143 | break; |
|
|
1144 | |
671 | case REQ_QUIT: |
1145 | case REQ_QUIT: |
672 | break; |
1146 | goto quit; |
673 | |
1147 | |
674 | default: |
1148 | default: |
675 | req->result = ENOSYS; |
1149 | req->result = ENOSYS; |
676 | break; |
1150 | break; |
677 | } |
1151 | } |
678 | |
1152 | |
679 | req->errorno = errno; |
1153 | req->errorno = errno; |
680 | |
1154 | |
681 | pthread_mutex_lock (&reslock); |
1155 | LOCK (reslock); |
682 | |
1156 | |
683 | req->next = 0; |
1157 | ++npending; |
684 | |
1158 | |
685 | if (rese) |
1159 | if (!reqq_push (&res_queue, req)) |
686 | { |
|
|
687 | rese->next = req; |
|
|
688 | rese = req; |
|
|
689 | } |
|
|
690 | else |
|
|
691 | { |
|
|
692 | rese = ress = req; |
|
|
693 | |
|
|
694 | /* write a dummy byte to the pipe so fh becomes ready */ |
1160 | /* write a dummy byte to the pipe so fh becomes ready */ |
695 | write (respipe [1], &respipe, 1); |
1161 | write (respipe [1], &respipe, 1); |
696 | } |
|
|
697 | |
1162 | |
698 | pthread_mutex_unlock (&reslock); |
1163 | self->req = 0; |
|
|
1164 | worker_clear (self); |
|
|
1165 | |
|
|
1166 | UNLOCK (reslock); |
699 | } |
1167 | } |
700 | while (type != REQ_QUIT); |
1168 | |
|
|
1169 | quit: |
|
|
1170 | LOCK (wrklock); |
|
|
1171 | worker_free (self); |
|
|
1172 | UNLOCK (wrklock); |
701 | |
1173 | |
702 | return 0; |
1174 | return 0; |
703 | } |
1175 | } |
704 | |
1176 | |
705 | /*****************************************************************************/ |
1177 | /*****************************************************************************/ |
706 | |
1178 | |
707 | static void atfork_prepare (void) |
1179 | static void atfork_prepare (void) |
708 | { |
1180 | { |
709 | pthread_mutex_lock (&reqlock); |
1181 | LOCK (wrklock); |
710 | pthread_mutex_lock (&reslock); |
1182 | LOCK (reqlock); |
|
|
1183 | LOCK (reslock); |
711 | #if !HAVE_PREADWRITE |
1184 | #if !HAVE_PREADWRITE |
712 | pthread_mutex_lock (&preadwritelock); |
1185 | LOCK (preadwritelock); |
713 | #endif |
1186 | #endif |
714 | #if !HAVE_READDIR_R |
1187 | #if !HAVE_READDIR_R |
715 | pthread_mutex_lock (&readdirlock); |
1188 | LOCK (readdirlock); |
716 | #endif |
1189 | #endif |
717 | } |
1190 | } |
718 | |
1191 | |
719 | static void atfork_parent (void) |
1192 | static void atfork_parent (void) |
720 | { |
1193 | { |
721 | #if !HAVE_READDIR_R |
1194 | #if !HAVE_READDIR_R |
722 | pthread_mutex_unlock (&readdirlock); |
1195 | UNLOCK (readdirlock); |
723 | #endif |
1196 | #endif |
724 | #if !HAVE_PREADWRITE |
1197 | #if !HAVE_PREADWRITE |
725 | pthread_mutex_unlock (&preadwritelock); |
1198 | UNLOCK (preadwritelock); |
726 | #endif |
1199 | #endif |
727 | pthread_mutex_unlock (&reslock); |
1200 | UNLOCK (reslock); |
728 | pthread_mutex_unlock (&reqlock); |
1201 | UNLOCK (reqlock); |
|
|
1202 | UNLOCK (wrklock); |
729 | } |
1203 | } |
730 | |
1204 | |
731 | static void atfork_child (void) |
1205 | static void atfork_child (void) |
732 | { |
1206 | { |
733 | aio_req prv; |
1207 | aio_req prv; |
734 | |
1208 | |
735 | started = 0; |
1209 | while (prv = reqq_shift (&req_queue)) |
|
|
1210 | req_free (prv); |
736 | |
1211 | |
737 | while (reqs) |
1212 | while (prv = reqq_shift (&res_queue)) |
|
|
1213 | req_free (prv); |
|
|
1214 | |
|
|
1215 | while (wrk_first.next != &wrk_first) |
738 | { |
1216 | { |
739 | prv = reqs; |
1217 | worker *wrk = wrk_first.next; |
740 | reqs = prv->next; |
1218 | |
741 | free_req (prv); |
1219 | if (wrk->req) |
|
|
1220 | req_free (wrk->req); |
|
|
1221 | |
|
|
1222 | worker_clear (wrk); |
|
|
1223 | worker_free (wrk); |
742 | } |
1224 | } |
743 | |
1225 | |
744 | reqs = reqe = 0; |
1226 | started = 0; |
745 | |
1227 | idle = 0; |
746 | while (ress) |
1228 | nreqs = 0; |
747 | { |
1229 | nready = 0; |
748 | prv = ress; |
1230 | npending = 0; |
749 | ress = prv->next; |
|
|
750 | free_req (prv); |
|
|
751 | } |
|
|
752 | |
|
|
753 | ress = rese = 0; |
|
|
754 | |
1231 | |
755 | close (respipe [0]); |
1232 | close (respipe [0]); |
756 | close (respipe [1]); |
1233 | close (respipe [1]); |
757 | create_pipe (); |
1234 | create_pipe (); |
758 | |
1235 | |
759 | atfork_parent (); |
1236 | atfork_parent (); |
760 | } |
1237 | } |
761 | |
1238 | |
762 | #define dREQ \ |
1239 | #define dREQ \ |
763 | aio_req req; \ |
1240 | aio_req req; \ |
|
|
1241 | int req_pri = next_pri; \ |
|
|
1242 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
764 | \ |
1243 | \ |
765 | if (SvOK (callback) && !SvROK (callback)) \ |
1244 | if (SvOK (callback) && !SvROK (callback)) \ |
766 | croak ("clalback must be undef or of reference type"); \ |
1245 | croak ("callback must be undef or of reference type"); \ |
767 | \ |
1246 | \ |
768 | Newz (0, req, 1, aio_cb); \ |
1247 | Newz (0, req, 1, aio_cb); \ |
769 | if (!req) \ |
1248 | if (!req) \ |
770 | croak ("out of memory during aio_req allocation"); \ |
1249 | croak ("out of memory during aio_req allocation"); \ |
771 | \ |
1250 | \ |
772 | req->callback = newSVsv (callback); |
1251 | req->callback = newSVsv (callback); \ |
|
|
1252 | req->pri = req_pri |
|
|
1253 | |
|
|
1254 | #define REQ_SEND \ |
|
|
1255 | req_send (req); \ |
|
|
1256 | \ |
|
|
1257 | if (GIMME_V != G_VOID) \ |
|
|
1258 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
773 | |
1259 | |
774 | MODULE = IO::AIO PACKAGE = IO::AIO |
1260 | MODULE = IO::AIO PACKAGE = IO::AIO |
775 | |
1261 | |
776 | PROTOTYPES: ENABLE |
1262 | PROTOTYPES: ENABLE |
777 | |
1263 | |
778 | BOOT: |
1264 | BOOT: |
779 | { |
1265 | { |
|
|
1266 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1267 | |
|
|
1268 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1269 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1270 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1271 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1272 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1273 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1274 | |
780 | create_pipe (); |
1275 | create_pipe (); |
781 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1276 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
782 | } |
1277 | } |
783 | |
1278 | |
784 | void |
1279 | void |
785 | min_parallel(nthreads) |
1280 | max_poll_reqs (int nreqs) |
786 | int nthreads |
|
|
787 | PROTOTYPE: $ |
1281 | PROTOTYPE: $ |
|
|
1282 | CODE: |
|
|
1283 | max_poll_reqs = nreqs; |
788 | |
1284 | |
789 | void |
1285 | void |
790 | max_parallel(nthreads) |
1286 | max_poll_time (double nseconds) |
791 | int nthreads |
|
|
792 | PROTOTYPE: $ |
1287 | PROTOTYPE: $ |
|
|
1288 | CODE: |
|
|
1289 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1290 | |
|
|
1291 | void |
|
|
1292 | min_parallel (int nthreads) |
|
|
1293 | PROTOTYPE: $ |
|
|
1294 | |
|
|
1295 | void |
|
|
1296 | max_parallel (int nthreads) |
|
|
1297 | PROTOTYPE: $ |
|
|
1298 | |
|
|
1299 | void |
|
|
1300 | max_idle (int nthreads) |
|
|
1301 | PROTOTYPE: $ |
|
|
1302 | CODE: |
|
|
1303 | set_max_idle (nthreads); |
793 | |
1304 | |
794 | int |
1305 | int |
795 | max_outstanding(nreqs) |
1306 | max_outstanding (int maxreqs) |
796 | int nreqs |
1307 | PROTOTYPE: $ |
797 | PROTOTYPE: $ |
|
|
798 | CODE: |
1308 | CODE: |
799 | RETVAL = max_outstanding; |
1309 | RETVAL = max_outstanding; |
800 | max_outstanding = nreqs; |
1310 | max_outstanding = maxreqs; |
|
|
1311 | OUTPUT: |
|
|
1312 | RETVAL |
801 | |
1313 | |
802 | void |
1314 | void |
803 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1315 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
804 | SV * pathname |
1316 | SV8 * pathname |
805 | int flags |
1317 | int flags |
806 | int mode |
1318 | int mode |
807 | SV * callback |
1319 | SV * callback |
808 | PROTOTYPE: $$$;$ |
1320 | PROTOTYPE: $$$;$ |
809 | CODE: |
1321 | PPCODE: |
810 | { |
1322 | { |
811 | dREQ; |
1323 | dREQ; |
812 | |
1324 | |
813 | req->type = REQ_OPEN; |
1325 | req->type = REQ_OPEN; |
814 | req->data = newSVsv (pathname); |
1326 | req->sv1 = newSVsv (pathname); |
815 | req->dataptr = SvPVbyte_nolen (req->data); |
1327 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
816 | req->fd = flags; |
1328 | req->int1 = flags; |
817 | req->mode = mode; |
1329 | req->mode = mode; |
818 | |
1330 | |
819 | send_req (req); |
1331 | REQ_SEND; |
820 | } |
1332 | } |
821 | |
1333 | |
822 | void |
1334 | void |
823 | aio_close(fh,callback=&PL_sv_undef) |
1335 | aio_close (fh,callback=&PL_sv_undef) |
824 | SV * fh |
1336 | SV * fh |
825 | SV * callback |
1337 | SV * callback |
826 | PROTOTYPE: $;$ |
1338 | PROTOTYPE: $;$ |
827 | ALIAS: |
1339 | ALIAS: |
828 | aio_close = REQ_CLOSE |
1340 | aio_close = REQ_CLOSE |
829 | aio_fsync = REQ_FSYNC |
1341 | aio_fsync = REQ_FSYNC |
830 | aio_fdatasync = REQ_FDATASYNC |
1342 | aio_fdatasync = REQ_FDATASYNC |
831 | CODE: |
1343 | PPCODE: |
832 | { |
1344 | { |
833 | dREQ; |
1345 | dREQ; |
834 | |
1346 | |
835 | req->type = ix; |
1347 | req->type = ix; |
836 | req->fh = newSVsv (fh); |
1348 | req->fh = newSVsv (fh); |
837 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1349 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
838 | |
1350 | |
839 | send_req (req); |
1351 | REQ_SEND (req); |
840 | } |
1352 | } |
841 | |
1353 | |
842 | void |
1354 | void |
843 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1355 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
844 | SV * fh |
1356 | SV * fh |
845 | UV offset |
1357 | UV offset |
846 | UV length |
1358 | UV length |
847 | SV * data |
1359 | SV8 * data |
848 | UV dataoffset |
1360 | UV dataoffset |
849 | SV * callback |
1361 | SV * callback |
850 | ALIAS: |
1362 | ALIAS: |
851 | aio_read = REQ_READ |
1363 | aio_read = REQ_READ |
852 | aio_write = REQ_WRITE |
1364 | aio_write = REQ_WRITE |
853 | PROTOTYPE: $$$$$;$ |
1365 | PROTOTYPE: $$$$$;$ |
854 | CODE: |
1366 | PPCODE: |
855 | { |
1367 | { |
856 | aio_req req; |
|
|
857 | STRLEN svlen; |
1368 | STRLEN svlen; |
858 | char *svptr = SvPVbyte (data, svlen); |
1369 | char *svptr = SvPVbyte (data, svlen); |
859 | |
1370 | |
860 | SvUPGRADE (data, SVt_PV); |
1371 | SvUPGRADE (data, SVt_PV); |
861 | SvPOK_on (data); |
1372 | SvPOK_on (data); |
… | |
… | |
883 | |
1394 | |
884 | { |
1395 | { |
885 | dREQ; |
1396 | dREQ; |
886 | |
1397 | |
887 | req->type = ix; |
1398 | req->type = ix; |
888 | req->fh = newSVsv (fh); |
1399 | req->fh = newSVsv (fh); |
889 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1400 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
890 | : IoOFP (sv_2io (fh))); |
1401 | : IoOFP (sv_2io (fh))); |
891 | req->offset = offset; |
1402 | req->offs = offset; |
892 | req->length = length; |
1403 | req->size = length; |
893 | req->data = SvREFCNT_inc (data); |
1404 | req->sv1 = SvREFCNT_inc (data); |
894 | req->dataptr = (char *)svptr + dataoffset; |
1405 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1406 | req->stroffset = dataoffset; |
895 | |
1407 | |
896 | if (!SvREADONLY (data)) |
1408 | if (!SvREADONLY (data)) |
897 | { |
1409 | { |
898 | SvREADONLY_on (data); |
1410 | SvREADONLY_on (data); |
899 | req->data2ptr = (void *)data; |
1411 | req->flags |= FLAG_SV1_RO_OFF; |
900 | } |
1412 | } |
901 | |
1413 | |
902 | send_req (req); |
1414 | REQ_SEND; |
903 | } |
1415 | } |
904 | } |
1416 | } |
905 | |
1417 | |
906 | void |
1418 | void |
|
|
1419 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1420 | SV8 * path |
|
|
1421 | SV * callback |
|
|
1422 | PROTOTYPE: $$;$ |
|
|
1423 | PPCODE: |
|
|
1424 | { |
|
|
1425 | SV *data; |
|
|
1426 | dREQ; |
|
|
1427 | |
|
|
1428 | data = newSV (NAME_MAX); |
|
|
1429 | SvPOK_on (data); |
|
|
1430 | |
|
|
1431 | req->type = REQ_READLINK; |
|
|
1432 | req->fh = newSVsv (path); |
|
|
1433 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1434 | req->sv1 = data; |
|
|
1435 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1436 | |
|
|
1437 | REQ_SEND; |
|
|
1438 | } |
|
|
1439 | |
|
|
1440 | void |
907 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1441 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
908 | SV * out_fh |
1442 | SV * out_fh |
909 | SV * in_fh |
1443 | SV * in_fh |
910 | UV in_offset |
1444 | UV in_offset |
911 | UV length |
1445 | UV length |
912 | SV * callback |
1446 | SV * callback |
913 | PROTOTYPE: $$$$;$ |
1447 | PROTOTYPE: $$$$;$ |
914 | CODE: |
1448 | PPCODE: |
915 | { |
1449 | { |
916 | dREQ; |
1450 | dREQ; |
917 | |
1451 | |
918 | req->type = REQ_SENDFILE; |
1452 | req->type = REQ_SENDFILE; |
919 | req->fh = newSVsv (out_fh); |
1453 | req->fh = newSVsv (out_fh); |
920 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1454 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
921 | req->fh2 = newSVsv (in_fh); |
1455 | req->sv2 = newSVsv (in_fh); |
922 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1456 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
923 | req->offset = in_offset; |
1457 | req->offs = in_offset; |
924 | req->length = length; |
1458 | req->size = length; |
925 | |
1459 | |
926 | send_req (req); |
1460 | REQ_SEND; |
927 | } |
1461 | } |
928 | |
1462 | |
929 | void |
1463 | void |
930 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1464 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
931 | SV * fh |
1465 | SV * fh |
932 | UV offset |
1466 | UV offset |
933 | IV length |
1467 | IV length |
934 | SV * callback |
1468 | SV * callback |
935 | PROTOTYPE: $$$;$ |
1469 | PROTOTYPE: $$$;$ |
936 | CODE: |
1470 | PPCODE: |
937 | { |
1471 | { |
938 | dREQ; |
1472 | dREQ; |
939 | |
1473 | |
940 | req->type = REQ_READAHEAD; |
1474 | req->type = REQ_READAHEAD; |
941 | req->fh = newSVsv (fh); |
1475 | req->fh = newSVsv (fh); |
942 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1476 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
943 | req->offset = offset; |
1477 | req->offs = offset; |
944 | req->length = length; |
1478 | req->size = length; |
945 | |
1479 | |
946 | send_req (req); |
1480 | REQ_SEND; |
947 | } |
1481 | } |
948 | |
1482 | |
949 | void |
1483 | void |
950 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1484 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
951 | SV * fh_or_path |
1485 | SV8 * fh_or_path |
952 | SV * callback |
1486 | SV * callback |
953 | ALIAS: |
1487 | ALIAS: |
954 | aio_stat = REQ_STAT |
1488 | aio_stat = REQ_STAT |
955 | aio_lstat = REQ_LSTAT |
1489 | aio_lstat = REQ_LSTAT |
956 | CODE: |
1490 | PPCODE: |
957 | { |
1491 | { |
958 | dREQ; |
1492 | dREQ; |
959 | |
1493 | |
960 | New (0, req->statdata, 1, Stat_t); |
1494 | req->ptr2 = malloc (sizeof (Stat_t)); |
961 | if (!req->statdata) |
1495 | if (!req->ptr2) |
962 | { |
1496 | { |
963 | free_req (req); |
1497 | req_free (req); |
964 | croak ("out of memory during aio_req->statdata allocation"); |
1498 | croak ("out of memory during aio_stat statdata allocation"); |
965 | } |
1499 | } |
|
|
1500 | |
|
|
1501 | req->flags |= FLAG_PTR2_FREE; |
966 | |
1502 | |
967 | if (SvPOK (fh_or_path)) |
1503 | if (SvPOK (fh_or_path)) |
968 | { |
1504 | { |
969 | req->type = ix; |
1505 | req->type = ix; |
970 | req->data = newSVsv (fh_or_path); |
1506 | req->sv1 = newSVsv (fh_or_path); |
971 | req->dataptr = SvPVbyte_nolen (req->data); |
1507 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
972 | } |
1508 | } |
973 | else |
1509 | else |
974 | { |
1510 | { |
975 | req->type = REQ_FSTAT; |
1511 | req->type = REQ_FSTAT; |
976 | req->fh = newSVsv (fh_or_path); |
1512 | req->fh = newSVsv (fh_or_path); |
977 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1513 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
978 | } |
1514 | } |
979 | |
1515 | |
980 | send_req (req); |
1516 | REQ_SEND; |
981 | } |
1517 | } |
982 | |
1518 | |
983 | void |
1519 | void |
984 | aio_unlink(pathname,callback=&PL_sv_undef) |
1520 | aio_unlink (pathname,callback=&PL_sv_undef) |
985 | SV * pathname |
1521 | SV8 * pathname |
986 | SV * callback |
1522 | SV * callback |
987 | ALIAS: |
1523 | ALIAS: |
988 | aio_unlink = REQ_UNLINK |
1524 | aio_unlink = REQ_UNLINK |
989 | aio_rmdir = REQ_RMDIR |
1525 | aio_rmdir = REQ_RMDIR |
|
|
1526 | aio_readdir = REQ_READDIR |
990 | CODE: |
1527 | PPCODE: |
991 | { |
1528 | { |
992 | dREQ; |
1529 | dREQ; |
993 | |
1530 | |
994 | req->type = ix; |
1531 | req->type = ix; |
995 | req->data = newSVsv (pathname); |
1532 | req->sv1 = newSVsv (pathname); |
996 | req->dataptr = SvPVbyte_nolen (req->data); |
1533 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
997 | |
|
|
998 | send_req (req); |
|
|
999 | } |
|
|
1000 | |
1534 | |
|
|
1535 | REQ_SEND; |
|
|
1536 | } |
|
|
1537 | |
1001 | void |
1538 | void |
1002 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1539 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1003 | SV * oldpath |
1540 | SV8 * oldpath |
1004 | SV * newpath |
1541 | SV8 * newpath |
1005 | SV * callback |
1542 | SV * callback |
|
|
1543 | ALIAS: |
|
|
1544 | aio_link = REQ_LINK |
|
|
1545 | aio_symlink = REQ_SYMLINK |
|
|
1546 | aio_rename = REQ_RENAME |
1006 | CODE: |
1547 | PPCODE: |
1007 | { |
1548 | { |
1008 | dREQ; |
1549 | dREQ; |
1009 | |
1550 | |
1010 | req->type = REQ_SYMLINK; |
1551 | req->type = ix; |
1011 | req->fh = newSVsv (oldpath); |
1552 | req->fh = newSVsv (oldpath); |
1012 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1553 | req->ptr2 = SvPVbyte_nolen (req->fh); |
1013 | req->data = newSVsv (newpath); |
1554 | req->sv1 = newSVsv (newpath); |
1014 | req->dataptr = SvPVbyte_nolen (req->data); |
1555 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1015 | |
1556 | |
1016 | send_req (req); |
1557 | REQ_SEND; |
1017 | } |
1558 | } |
1018 | |
1559 | |
1019 | void |
1560 | void |
1020 | aio_readdir(pathname,callback=&PL_sv_undef) |
1561 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
1021 | SV * pathname |
1562 | SV8 * pathname |
1022 | SV * callback |
1563 | SV * callback |
|
|
1564 | UV mode |
|
|
1565 | UV dev |
1023 | CODE: |
1566 | PPCODE: |
1024 | { |
1567 | { |
1025 | dREQ; |
1568 | dREQ; |
1026 | |
1569 | |
1027 | req->type = REQ_READDIR; |
1570 | req->type = REQ_MKNOD; |
1028 | req->data = newSVsv (pathname); |
1571 | req->sv1 = newSVsv (pathname); |
1029 | req->dataptr = SvPVbyte_nolen (req->data); |
1572 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1573 | req->mode = (mode_t)mode; |
|
|
1574 | req->offs = dev; |
1030 | |
1575 | |
1031 | send_req (req); |
1576 | REQ_SEND; |
1032 | } |
1577 | } |
1033 | |
1578 | |
1034 | void |
1579 | void |
|
|
1580 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1581 | double delay |
|
|
1582 | SV * callback |
|
|
1583 | PPCODE: |
|
|
1584 | { |
|
|
1585 | dREQ; |
|
|
1586 | |
|
|
1587 | req->type = REQ_BUSY; |
|
|
1588 | req->int1 = delay < 0. ? 0 : delay; |
|
|
1589 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
|
|
1590 | |
|
|
1591 | REQ_SEND; |
|
|
1592 | } |
|
|
1593 | |
|
|
1594 | void |
|
|
1595 | aio_group (callback=&PL_sv_undef) |
|
|
1596 | SV * callback |
|
|
1597 | PROTOTYPE: ;$ |
|
|
1598 | PPCODE: |
|
|
1599 | { |
|
|
1600 | dREQ; |
|
|
1601 | |
|
|
1602 | req->type = REQ_GROUP; |
|
|
1603 | |
|
|
1604 | req_send (req); |
|
|
1605 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1606 | } |
|
|
1607 | |
|
|
1608 | void |
|
|
1609 | aio_nop (callback=&PL_sv_undef) |
|
|
1610 | SV * callback |
|
|
1611 | PPCODE: |
|
|
1612 | { |
|
|
1613 | dREQ; |
|
|
1614 | |
|
|
1615 | req->type = REQ_NOP; |
|
|
1616 | |
|
|
1617 | REQ_SEND; |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | int |
|
|
1621 | aioreq_pri (int pri = 0) |
|
|
1622 | PROTOTYPE: ;$ |
|
|
1623 | CODE: |
|
|
1624 | RETVAL = next_pri - PRI_BIAS; |
|
|
1625 | if (items > 0) |
|
|
1626 | { |
|
|
1627 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1628 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1629 | next_pri = pri + PRI_BIAS; |
|
|
1630 | } |
|
|
1631 | OUTPUT: |
|
|
1632 | RETVAL |
|
|
1633 | |
|
|
1634 | void |
|
|
1635 | aioreq_nice (int nice = 0) |
|
|
1636 | CODE: |
|
|
1637 | nice = next_pri - nice; |
|
|
1638 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1639 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1640 | next_pri = nice + PRI_BIAS; |
|
|
1641 | |
|
|
1642 | void |
1035 | flush() |
1643 | flush () |
1036 | PROTOTYPE: |
1644 | PROTOTYPE: |
1037 | CODE: |
1645 | CODE: |
1038 | while (nreqs) |
1646 | while (nreqs) |
1039 | { |
1647 | { |
1040 | poll_wait (); |
1648 | poll_wait (); |
1041 | poll_cb (); |
1649 | poll_cb (); |
1042 | } |
1650 | } |
1043 | |
1651 | |
1044 | void |
1652 | int |
1045 | poll() |
1653 | poll() |
1046 | PROTOTYPE: |
1654 | PROTOTYPE: |
1047 | CODE: |
1655 | CODE: |
1048 | if (nreqs) |
|
|
1049 | { |
|
|
1050 | poll_wait (); |
1656 | poll_wait (); |
1051 | poll_cb (); |
1657 | RETVAL = poll_cb (); |
1052 | } |
1658 | OUTPUT: |
|
|
1659 | RETVAL |
1053 | |
1660 | |
1054 | int |
1661 | int |
1055 | poll_fileno() |
1662 | poll_fileno() |
1056 | PROTOTYPE: |
1663 | PROTOTYPE: |
1057 | CODE: |
1664 | CODE: |
… | |
… | |
1069 | |
1676 | |
1070 | void |
1677 | void |
1071 | poll_wait() |
1678 | poll_wait() |
1072 | PROTOTYPE: |
1679 | PROTOTYPE: |
1073 | CODE: |
1680 | CODE: |
1074 | if (nreqs) |
|
|
1075 | poll_wait (); |
1681 | poll_wait (); |
1076 | |
1682 | |
1077 | int |
1683 | int |
1078 | nreqs() |
1684 | nreqs() |
1079 | PROTOTYPE: |
1685 | PROTOTYPE: |
1080 | CODE: |
1686 | CODE: |
1081 | RETVAL = nreqs; |
1687 | RETVAL = nreqs; |
1082 | OUTPUT: |
1688 | OUTPUT: |
1083 | RETVAL |
1689 | RETVAL |
1084 | |
1690 | |
|
|
1691 | int |
|
|
1692 | nready() |
|
|
1693 | PROTOTYPE: |
|
|
1694 | CODE: |
|
|
1695 | RETVAL = get_nready (); |
|
|
1696 | OUTPUT: |
|
|
1697 | RETVAL |
|
|
1698 | |
|
|
1699 | int |
|
|
1700 | npending() |
|
|
1701 | PROTOTYPE: |
|
|
1702 | CODE: |
|
|
1703 | RETVAL = get_npending (); |
|
|
1704 | OUTPUT: |
|
|
1705 | RETVAL |
|
|
1706 | |
|
|
1707 | int |
|
|
1708 | nthreads() |
|
|
1709 | PROTOTYPE: |
|
|
1710 | CODE: |
|
|
1711 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1712 | RETVAL = started; |
|
|
1713 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1714 | OUTPUT: |
|
|
1715 | RETVAL |
|
|
1716 | |
|
|
1717 | PROTOTYPES: DISABLE |
|
|
1718 | |
|
|
1719 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1720 | |
|
|
1721 | void |
|
|
1722 | cancel (aio_req_ornot req) |
|
|
1723 | CODE: |
|
|
1724 | req_cancel (req); |
|
|
1725 | |
|
|
1726 | void |
|
|
1727 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1728 | CODE: |
|
|
1729 | SvREFCNT_dec (req->callback); |
|
|
1730 | req->callback = newSVsv (callback); |
|
|
1731 | |
|
|
1732 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1733 | |
|
|
1734 | void |
|
|
1735 | add (aio_req grp, ...) |
|
|
1736 | PPCODE: |
|
|
1737 | { |
|
|
1738 | int i; |
|
|
1739 | aio_req req; |
|
|
1740 | |
|
|
1741 | if (grp->int1 == 2) |
|
|
1742 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1743 | |
|
|
1744 | for (i = 1; i < items; ++i ) |
|
|
1745 | { |
|
|
1746 | if (GIMME_V != G_VOID) |
|
|
1747 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1748 | |
|
|
1749 | req = SvAIO_REQ (ST (i)); |
|
|
1750 | |
|
|
1751 | if (req) |
|
|
1752 | { |
|
|
1753 | ++grp->size; |
|
|
1754 | req->grp = grp; |
|
|
1755 | |
|
|
1756 | req->grp_prev = 0; |
|
|
1757 | req->grp_next = grp->grp_first; |
|
|
1758 | |
|
|
1759 | if (grp->grp_first) |
|
|
1760 | grp->grp_first->grp_prev = req; |
|
|
1761 | |
|
|
1762 | grp->grp_first = req; |
|
|
1763 | } |
|
|
1764 | } |
|
|
1765 | } |
|
|
1766 | |
|
|
1767 | void |
|
|
1768 | cancel_subs (aio_req_ornot req) |
|
|
1769 | CODE: |
|
|
1770 | req_cancel_subs (req); |
|
|
1771 | |
|
|
1772 | void |
|
|
1773 | result (aio_req grp, ...) |
|
|
1774 | CODE: |
|
|
1775 | { |
|
|
1776 | int i; |
|
|
1777 | AV *av; |
|
|
1778 | |
|
|
1779 | grp->errorno = errno; |
|
|
1780 | |
|
|
1781 | av = newAV (); |
|
|
1782 | |
|
|
1783 | for (i = 1; i < items; ++i ) |
|
|
1784 | av_push (av, newSVsv (ST (i))); |
|
|
1785 | |
|
|
1786 | SvREFCNT_dec (grp->sv1); |
|
|
1787 | grp->sv1 = (SV *)av; |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | void |
|
|
1791 | errno (aio_req grp, int errorno = errno) |
|
|
1792 | CODE: |
|
|
1793 | grp->errorno = errorno; |
|
|
1794 | |
|
|
1795 | void |
|
|
1796 | limit (aio_req grp, int limit) |
|
|
1797 | CODE: |
|
|
1798 | grp->int2 = limit; |
|
|
1799 | aio_grp_feed (grp); |
|
|
1800 | |
|
|
1801 | void |
|
|
1802 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1803 | CODE: |
|
|
1804 | { |
|
|
1805 | SvREFCNT_dec (grp->sv2); |
|
|
1806 | grp->sv2 = newSVsv (callback); |
|
|
1807 | |
|
|
1808 | if (grp->int2 <= 0) |
|
|
1809 | grp->int2 = 2; |
|
|
1810 | |
|
|
1811 | aio_grp_feed (grp); |
|
|
1812 | } |
|
|
1813 | |