|
|
1 | /* solaris */ |
|
|
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
|
|
3 | |
|
|
4 | #if __linux |
|
|
5 | # define _GNU_SOURCE |
|
|
6 | #endif |
|
|
7 | |
1 | #define _REENTRANT 1 |
8 | #define _REENTRANT 1 |
|
|
9 | |
2 | #include <errno.h> |
10 | #include <errno.h> |
3 | |
11 | |
4 | #include "EXTERN.h" |
12 | #include "EXTERN.h" |
5 | #include "perl.h" |
13 | #include "perl.h" |
6 | #include "XSUB.h" |
14 | #include "XSUB.h" |
… | |
… | |
9 | |
17 | |
10 | #include <pthread.h> |
18 | #include <pthread.h> |
11 | |
19 | |
12 | #include <stddef.h> |
20 | #include <stddef.h> |
13 | #include <errno.h> |
21 | #include <errno.h> |
|
|
22 | #include <sys/time.h> |
|
|
23 | #include <sys/select.h> |
14 | #include <sys/types.h> |
24 | #include <sys/types.h> |
15 | #include <sys/stat.h> |
25 | #include <sys/stat.h> |
16 | #include <limits.h> |
26 | #include <limits.h> |
17 | #include <unistd.h> |
27 | #include <unistd.h> |
18 | #include <fcntl.h> |
28 | #include <fcntl.h> |
… | |
… | |
39 | # define NAME_MAX 4096 |
49 | # define NAME_MAX 4096 |
40 | #endif |
50 | #endif |
41 | |
51 | |
42 | #if __ia64 |
52 | #if __ia64 |
43 | # define STACKSIZE 65536 |
53 | # define STACKSIZE 65536 |
|
|
54 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
|
|
55 | # define STACKSIZE PTHREAD_STACK_MIN |
44 | #else |
56 | #else |
45 | # define STACKSIZE 8192 |
57 | # define STACKSIZE 16384 |
46 | #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; |
47 | |
70 | |
48 | enum { |
71 | enum { |
49 | REQ_QUIT, |
72 | REQ_QUIT, |
50 | REQ_OPEN, REQ_CLOSE, |
73 | REQ_OPEN, REQ_CLOSE, |
51 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
74 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
76 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
77 | REQ_FSYNC, REQ_FDATASYNC, |
55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
78 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
56 | REQ_READDIR, |
79 | REQ_READDIR, |
57 | REQ_LINK, REQ_SYMLINK, |
80 | REQ_LINK, REQ_SYMLINK, |
58 | REQ_GROUP, |
81 | REQ_GROUP, REQ_NOP, |
|
|
82 | REQ_BUSY, |
59 | }; |
83 | }; |
60 | |
84 | |
61 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
85 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
62 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
86 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
63 | |
87 | |
64 | typedef struct aio_cb |
88 | typedef struct aio_cb |
65 | { |
89 | { |
66 | struct aio_cb *grp, *grp_prev, *grp_next; |
|
|
67 | |
|
|
68 | struct aio_cb *volatile next; |
90 | struct aio_cb *volatile next; |
69 | |
|
|
70 | SV *self; /* the perl counterpart of this request, if any */ |
|
|
71 | |
91 | |
72 | SV *data, *callback; |
92 | SV *data, *callback; |
73 | SV *fh, *fh2; |
93 | SV *fh, *fh2; |
74 | void *dataptr, *data2ptr; |
94 | void *dataptr, *data2ptr; |
75 | Stat_t *statdata; |
95 | Stat_t *statdata; |
76 | off_t offset; |
96 | off_t offset; |
77 | size_t length; |
97 | size_t length; |
78 | ssize_t result; |
98 | ssize_t result; |
79 | |
99 | |
|
|
100 | STRLEN dataoffset; |
80 | int type; |
101 | int type; |
81 | int fd, fd2; |
102 | int fd, fd2; |
82 | int errorno; |
103 | int errorno; |
83 | STRLEN dataoffset; |
|
|
84 | mode_t mode; /* open */ |
104 | mode_t mode; /* open */ |
|
|
105 | |
85 | unsigned char cancelled; |
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; |
86 | } aio_cb; |
111 | } aio_cb; |
|
|
112 | |
|
|
113 | enum { |
|
|
114 | FLAG_CANCELLED = 0x01, |
|
|
115 | }; |
87 | |
116 | |
88 | typedef aio_cb *aio_req; |
117 | typedef aio_cb *aio_req; |
89 | typedef aio_cb *aio_req_ornot; |
118 | typedef aio_cb *aio_req_ornot; |
90 | typedef aio_cb *aio_group; |
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; |
91 | |
130 | |
92 | static int started, wanted; |
131 | static int started, wanted; |
93 | static volatile int nreqs; |
132 | static volatile int nreqs; |
94 | static int max_outstanding = 1<<30; |
133 | static int max_outstanding = 1<<30; |
95 | static int respipe [2]; |
134 | static int respipe [2]; |
96 | |
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 | |
97 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
185 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
98 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
186 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
99 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
187 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
100 | |
188 | |
101 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
189 | /* |
102 | 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; |
|
|
198 | |
|
|
199 | static reqq req_queue; |
|
|
200 | static reqq res_queue; |
|
|
201 | |
|
|
202 | int reqq_push (reqq *q, aio_req req) |
|
|
203 | { |
|
|
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; |
|
|
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); |
103 | |
245 | |
104 | /* must be called at most once */ |
246 | /* must be called at most once */ |
105 | static SV *req_sv (aio_req req, const char *klass) |
247 | static SV *req_sv (aio_req req, const char *klass) |
106 | { |
248 | { |
|
|
249 | if (!req->self) |
|
|
250 | { |
107 | req->self = (SV *)newHV (); |
251 | req->self = (SV *)newHV (); |
108 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
252 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
|
|
253 | } |
109 | |
254 | |
110 | return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1))); |
255 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
111 | } |
256 | } |
112 | |
257 | |
113 | static aio_req SvAIO_REQ (SV *sv, const char *klass) |
258 | static aio_req SvAIO_REQ (SV *sv) |
114 | { |
259 | { |
|
|
260 | MAGIC *mg; |
|
|
261 | |
115 | if (!sv_derived_from (sv, klass) || !SvROK (sv)) |
262 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
116 | croak ("object of class %s expected", klass); |
263 | croak ("object of class " AIO_REQ_KLASS " expected"); |
117 | |
264 | |
118 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
265 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
119 | |
266 | |
120 | return mg ? (aio_req)mg->mg_ptr : 0; |
267 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
|
268 | } |
|
|
269 | |
|
|
270 | static void aio_grp_feed (aio_req grp) |
|
|
271 | { |
|
|
272 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
|
|
273 | { |
|
|
274 | int old_len = grp->length; |
|
|
275 | |
|
|
276 | if (grp->fh2 && SvOK (grp->fh2)) |
|
|
277 | { |
|
|
278 | dSP; |
|
|
279 | |
|
|
280 | ENTER; |
|
|
281 | SAVETMPS; |
|
|
282 | PUSHMARK (SP); |
|
|
283 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
284 | PUTBACK; |
|
|
285 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
|
|
286 | SPAGAIN; |
|
|
287 | FREETMPS; |
|
|
288 | LEAVE; |
|
|
289 | } |
|
|
290 | |
|
|
291 | /* stop if no progress has been made */ |
|
|
292 | if (old_len == grp->length) |
|
|
293 | { |
|
|
294 | SvREFCNT_dec (grp->fh2); |
|
|
295 | grp->fh2 = 0; |
|
|
296 | break; |
|
|
297 | } |
|
|
298 | } |
|
|
299 | } |
|
|
300 | |
|
|
301 | static void aio_grp_dec (aio_req grp) |
|
|
302 | { |
|
|
303 | --grp->length; |
|
|
304 | |
|
|
305 | /* call feeder, if applicable */ |
|
|
306 | aio_grp_feed (grp); |
|
|
307 | |
|
|
308 | /* finish, if done */ |
|
|
309 | if (!grp->length && grp->fd) |
|
|
310 | { |
|
|
311 | req_invoke (grp); |
|
|
312 | req_free (grp); |
|
|
313 | } |
|
|
314 | } |
|
|
315 | |
|
|
316 | static void poll_wait () |
|
|
317 | { |
|
|
318 | fd_set rfd; |
|
|
319 | |
|
|
320 | while (nreqs) |
|
|
321 | { |
|
|
322 | int size; |
|
|
323 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
|
|
324 | LOCK (reslock); |
|
|
325 | #endif |
|
|
326 | size = res_queue.size; |
|
|
327 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
|
|
328 | UNLOCK (reslock); |
|
|
329 | #endif |
|
|
330 | |
|
|
331 | if (size) |
|
|
332 | return; |
|
|
333 | |
|
|
334 | FD_ZERO(&rfd); |
|
|
335 | FD_SET(respipe [0], &rfd); |
|
|
336 | |
|
|
337 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
338 | } |
|
|
339 | } |
|
|
340 | |
|
|
341 | static void req_invoke (aio_req req) |
|
|
342 | { |
|
|
343 | dSP; |
|
|
344 | |
|
|
345 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
|
|
346 | { |
|
|
347 | errno = req->errorno; |
|
|
348 | |
|
|
349 | ENTER; |
|
|
350 | SAVETMPS; |
|
|
351 | PUSHMARK (SP); |
|
|
352 | EXTEND (SP, 1); |
|
|
353 | |
|
|
354 | switch (req->type) |
|
|
355 | { |
|
|
356 | case REQ_READDIR: |
|
|
357 | { |
|
|
358 | SV *rv = &PL_sv_undef; |
|
|
359 | |
|
|
360 | if (req->result >= 0) |
|
|
361 | { |
|
|
362 | int i; |
|
|
363 | char *buf = req->data2ptr; |
|
|
364 | AV *av = newAV (); |
|
|
365 | |
|
|
366 | av_extend (av, req->result - 1); |
|
|
367 | |
|
|
368 | for (i = 0; i < req->result; ++i) |
|
|
369 | { |
|
|
370 | SV *sv = newSVpv (buf, 0); |
|
|
371 | |
|
|
372 | av_store (av, i, sv); |
|
|
373 | buf += SvCUR (sv) + 1; |
|
|
374 | } |
|
|
375 | |
|
|
376 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
377 | } |
|
|
378 | |
|
|
379 | PUSHs (rv); |
|
|
380 | } |
|
|
381 | break; |
|
|
382 | |
|
|
383 | case REQ_OPEN: |
|
|
384 | { |
|
|
385 | /* convert fd to fh */ |
|
|
386 | SV *fh; |
|
|
387 | |
|
|
388 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
389 | PUTBACK; |
|
|
390 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
391 | SPAGAIN; |
|
|
392 | |
|
|
393 | fh = SvREFCNT_inc (POPs); |
|
|
394 | |
|
|
395 | PUSHMARK (SP); |
|
|
396 | XPUSHs (sv_2mortal (fh)); |
|
|
397 | } |
|
|
398 | break; |
|
|
399 | |
|
|
400 | case REQ_GROUP: |
|
|
401 | req->fd = 2; /* mark group as finished */ |
|
|
402 | |
|
|
403 | if (req->data) |
|
|
404 | { |
|
|
405 | int i; |
|
|
406 | AV *av = (AV *)req->data; |
|
|
407 | |
|
|
408 | EXTEND (SP, AvFILL (av) + 1); |
|
|
409 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
410 | PUSHs (*av_fetch (av, i, 0)); |
|
|
411 | } |
|
|
412 | break; |
|
|
413 | |
|
|
414 | case REQ_NOP: |
|
|
415 | case REQ_BUSY: |
|
|
416 | break; |
|
|
417 | |
|
|
418 | default: |
|
|
419 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
420 | break; |
|
|
421 | } |
|
|
422 | |
|
|
423 | |
|
|
424 | PUTBACK; |
|
|
425 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
426 | SPAGAIN; |
|
|
427 | |
|
|
428 | FREETMPS; |
|
|
429 | LEAVE; |
|
|
430 | } |
|
|
431 | |
|
|
432 | if (req->grp) |
|
|
433 | { |
|
|
434 | aio_req grp = req->grp; |
|
|
435 | |
|
|
436 | /* unlink request */ |
|
|
437 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
438 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
439 | |
|
|
440 | if (grp->grp_first == req) |
|
|
441 | grp->grp_first = req->grp_next; |
|
|
442 | |
|
|
443 | aio_grp_dec (grp); |
|
|
444 | } |
|
|
445 | |
|
|
446 | if (SvTRUE (ERRSV)) |
|
|
447 | { |
|
|
448 | req_free (req); |
|
|
449 | croak (0); |
|
|
450 | } |
121 | } |
451 | } |
122 | |
452 | |
123 | static void req_free (aio_req req) |
453 | static void req_free (aio_req req) |
124 | { |
454 | { |
125 | if (req->self) |
455 | if (req->self) |
126 | { |
456 | { |
127 | sv_unmagic (req->self, PERL_MAGIC_ext); |
457 | sv_unmagic (req->self, PERL_MAGIC_ext); |
128 | SvREFCNT_dec (req->self); |
458 | SvREFCNT_dec (req->self); |
129 | } |
459 | } |
130 | |
460 | |
131 | if (req->data) |
|
|
132 | SvREFCNT_dec (req->data); |
461 | SvREFCNT_dec (req->data); |
133 | |
|
|
134 | if (req->fh) |
|
|
135 | SvREFCNT_dec (req->fh); |
462 | SvREFCNT_dec (req->fh); |
136 | |
|
|
137 | if (req->fh2) |
|
|
138 | SvREFCNT_dec (req->fh2); |
463 | SvREFCNT_dec (req->fh2); |
139 | |
|
|
140 | if (req->statdata) |
|
|
141 | Safefree (req->statdata); |
|
|
142 | |
|
|
143 | if (req->callback) |
|
|
144 | SvREFCNT_dec (req->callback); |
464 | SvREFCNT_dec (req->callback); |
|
|
465 | Safefree (req->statdata); |
145 | |
466 | |
146 | if (req->type == REQ_READDIR && req->result >= 0) |
467 | if (req->type == REQ_READDIR) |
147 | free (req->data2ptr); |
468 | free (req->data2ptr); |
148 | |
469 | |
149 | Safefree (req); |
470 | Safefree (req); |
150 | } |
471 | } |
151 | |
472 | |
152 | static void |
473 | static void req_cancel (aio_req req) |
153 | poll_wait () |
|
|
154 | { |
474 | { |
155 | if (nreqs && !ress) |
475 | req->flags |= FLAG_CANCELLED; |
156 | { |
|
|
157 | fd_set rfd; |
|
|
158 | FD_ZERO(&rfd); |
|
|
159 | FD_SET(respipe [0], &rfd); |
|
|
160 | |
476 | |
161 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
477 | if (req->type == REQ_GROUP) |
162 | } |
478 | { |
163 | } |
479 | aio_req sub; |
164 | |
480 | |
165 | static int |
481 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
166 | poll_cb () |
482 | req_cancel (sub); |
|
|
483 | } |
|
|
484 | } |
|
|
485 | |
|
|
486 | static int poll_cb () |
167 | { |
487 | { |
168 | dSP; |
488 | dSP; |
169 | int count = 0; |
489 | int count = 0; |
170 | int do_croak = 0; |
490 | int do_croak = 0; |
171 | aio_req req; |
491 | aio_req req; |
172 | |
492 | |
173 | for (;;) |
493 | for (;;) |
174 | { |
494 | { |
175 | pthread_mutex_lock (&reslock); |
495 | LOCK (reslock); |
176 | req = ress; |
496 | req = reqq_shift (&res_queue); |
177 | |
497 | |
178 | if (req) |
498 | if (req) |
179 | { |
499 | { |
180 | ress = req->next; |
|
|
181 | |
|
|
182 | if (!ress) |
500 | if (!res_queue.size) |
183 | { |
501 | { |
184 | /* read any signals sent by the worker threads */ |
502 | /* read any signals sent by the worker threads */ |
185 | char buf [32]; |
503 | char buf [32]; |
186 | while (read (respipe [0], buf, 32) == 32) |
504 | while (read (respipe [0], buf, 32) == 32) |
187 | ; |
505 | ; |
188 | |
|
|
189 | rese = 0; |
|
|
190 | } |
506 | } |
191 | } |
507 | } |
192 | |
508 | |
193 | pthread_mutex_unlock (&reslock); |
509 | UNLOCK (reslock); |
194 | |
510 | |
195 | if (!req) |
511 | if (!req) |
196 | break; |
512 | break; |
197 | |
513 | |
198 | nreqs--; |
514 | --nreqs; |
199 | |
515 | |
200 | if (req->type == REQ_QUIT) |
516 | if (req->type == REQ_QUIT) |
201 | started--; |
517 | started--; |
|
|
518 | else if (req->type == REQ_GROUP && req->length) |
|
|
519 | { |
|
|
520 | req->fd = 1; /* mark request as delayed */ |
|
|
521 | continue; |
|
|
522 | } |
202 | else |
523 | else |
203 | { |
524 | { |
204 | int errorno = errno; |
|
|
205 | errno = req->errorno; |
|
|
206 | |
|
|
207 | if (req->type == REQ_READ) |
525 | if (req->type == REQ_READ) |
208 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
526 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
209 | |
527 | |
210 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
528 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
211 | SvREADONLY_off (req->data); |
529 | SvREADONLY_off (req->data); |
… | |
… | |
215 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
533 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
216 | PL_laststatval = req->result; |
534 | PL_laststatval = req->result; |
217 | PL_statcache = *(req->statdata); |
535 | PL_statcache = *(req->statdata); |
218 | } |
536 | } |
219 | |
537 | |
220 | ENTER; |
538 | req_invoke (req); |
221 | PUSHMARK (SP); |
|
|
222 | |
539 | |
223 | if (req->type == REQ_READDIR) |
|
|
224 | { |
|
|
225 | SV *rv = &PL_sv_undef; |
|
|
226 | |
|
|
227 | if (req->result >= 0) |
|
|
228 | { |
|
|
229 | char *buf = req->data2ptr; |
|
|
230 | AV *av = newAV (); |
|
|
231 | |
|
|
232 | while (req->result) |
|
|
233 | { |
|
|
234 | SV *sv = newSVpv (buf, 0); |
|
|
235 | |
|
|
236 | av_push (av, sv); |
|
|
237 | buf += SvCUR (sv) + 1; |
|
|
238 | req->result--; |
|
|
239 | } |
|
|
240 | |
|
|
241 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
242 | } |
|
|
243 | |
|
|
244 | XPUSHs (rv); |
|
|
245 | } |
|
|
246 | else |
|
|
247 | { |
|
|
248 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
249 | |
|
|
250 | if (req->type == REQ_OPEN) |
|
|
251 | { |
|
|
252 | /* convert fd to fh */ |
|
|
253 | SV *fh; |
|
|
254 | |
|
|
255 | PUTBACK; |
|
|
256 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
257 | SPAGAIN; |
|
|
258 | |
|
|
259 | fh = SvREFCNT_inc (POPs); |
|
|
260 | |
|
|
261 | PUSHMARK (SP); |
|
|
262 | XPUSHs (sv_2mortal (fh)); |
|
|
263 | } |
|
|
264 | } |
|
|
265 | |
|
|
266 | if (SvOK (req->callback) && !req->cancelled) |
|
|
267 | { |
|
|
268 | PUTBACK; |
|
|
269 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
270 | SPAGAIN; |
|
|
271 | |
|
|
272 | if (SvTRUE (ERRSV)) |
|
|
273 | { |
|
|
274 | req_free (req); |
|
|
275 | croak (0); |
|
|
276 | } |
|
|
277 | } |
|
|
278 | |
|
|
279 | LEAVE; |
|
|
280 | |
|
|
281 | errno = errorno; |
|
|
282 | count++; |
540 | count++; |
283 | } |
541 | } |
284 | |
542 | |
285 | req_free (req); |
543 | req_free (req); |
286 | } |
544 | } |
… | |
… | |
288 | return count; |
546 | return count; |
289 | } |
547 | } |
290 | |
548 | |
291 | static void *aio_proc(void *arg); |
549 | static void *aio_proc(void *arg); |
292 | |
550 | |
293 | static void |
|
|
294 | start_thread (void) |
551 | static void start_thread (void) |
295 | { |
552 | { |
|
|
553 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
554 | |
|
|
555 | if (!wrk) |
|
|
556 | croak ("unable to allocate worker thread data"); |
|
|
557 | |
296 | sigset_t fullsigset, oldsigset; |
558 | sigset_t fullsigset, oldsigset; |
297 | pthread_t tid; |
|
|
298 | pthread_attr_t attr; |
559 | pthread_attr_t attr; |
299 | |
560 | |
300 | pthread_attr_init (&attr); |
561 | pthread_attr_init (&attr); |
301 | pthread_attr_setstacksize (&attr, STACKSIZE); |
562 | pthread_attr_setstacksize (&attr, STACKSIZE); |
302 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
563 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
303 | |
564 | |
304 | sigfillset (&fullsigset); |
565 | sigfillset (&fullsigset); |
|
|
566 | |
|
|
567 | LOCK (wrklock); |
305 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
568 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
306 | |
569 | |
307 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
570 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
571 | { |
|
|
572 | wrk->prev = &wrk_first; |
|
|
573 | wrk->next = wrk_first.next; |
|
|
574 | wrk_first.next->prev = wrk; |
|
|
575 | wrk_first.next = wrk; |
308 | started++; |
576 | started++; |
|
|
577 | } |
|
|
578 | else |
|
|
579 | free (wrk); |
309 | |
580 | |
310 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
581 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
582 | UNLOCK (wrklock); |
311 | } |
583 | } |
312 | |
584 | |
313 | static void |
|
|
314 | req_send (aio_req req) |
585 | static void req_send (aio_req req) |
315 | { |
586 | { |
316 | while (started < wanted && nreqs >= started) |
587 | while (started < wanted && nreqs >= started) |
317 | start_thread (); |
588 | start_thread (); |
318 | |
589 | |
319 | nreqs++; |
590 | ++nreqs; |
320 | |
591 | |
321 | pthread_mutex_lock (&reqlock); |
592 | LOCK (reqlock); |
322 | |
593 | reqq_push (&req_queue, req); |
323 | req->next = 0; |
|
|
324 | |
|
|
325 | if (reqe) |
|
|
326 | { |
|
|
327 | reqe->next = req; |
|
|
328 | reqe = req; |
|
|
329 | } |
|
|
330 | else |
|
|
331 | reqe = reqs = req; |
|
|
332 | |
|
|
333 | pthread_cond_signal (&reqwait); |
594 | pthread_cond_signal (&reqwait); |
334 | pthread_mutex_unlock (&reqlock); |
595 | UNLOCK (reqlock); |
335 | |
596 | |
336 | if (nreqs > max_outstanding) |
597 | if (nreqs > max_outstanding) |
337 | for (;;) |
598 | for (;;) |
338 | { |
599 | { |
339 | poll_cb (); |
600 | poll_cb (); |
… | |
… | |
343 | |
604 | |
344 | poll_wait (); |
605 | poll_wait (); |
345 | } |
606 | } |
346 | } |
607 | } |
347 | |
608 | |
348 | static void |
609 | static void end_thread (void) |
349 | end_thread (void) |
|
|
350 | { |
610 | { |
351 | aio_req req; |
611 | aio_req req; |
|
|
612 | |
352 | Newz (0, req, 1, aio_cb); |
613 | Newz (0, req, 1, aio_cb); |
|
|
614 | |
353 | req->type = REQ_QUIT; |
615 | req->type = REQ_QUIT; |
|
|
616 | req->pri = PRI_MAX + PRI_BIAS; |
354 | |
617 | |
355 | req_send (req); |
618 | req_send (req); |
356 | } |
619 | } |
357 | |
620 | |
358 | static void min_parallel (int nthreads) |
621 | static void min_parallel (int nthreads) |
… | |
… | |
405 | * normal read/write by using a mutex. slows down execution a lot, |
668 | * normal read/write by using a mutex. slows down execution a lot, |
406 | * but that's your problem, not mine. |
669 | * but that's your problem, not mine. |
407 | */ |
670 | */ |
408 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
671 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
409 | |
672 | |
410 | static ssize_t |
673 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
411 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
412 | { |
674 | { |
413 | ssize_t res; |
675 | ssize_t res; |
414 | off_t ooffset; |
676 | off_t ooffset; |
415 | |
677 | |
416 | pthread_mutex_lock (&preadwritelock); |
678 | LOCK (preadwritelock); |
417 | ooffset = lseek (fd, 0, SEEK_CUR); |
679 | ooffset = lseek (fd, 0, SEEK_CUR); |
418 | lseek (fd, offset, SEEK_SET); |
680 | lseek (fd, offset, SEEK_SET); |
419 | res = read (fd, buf, count); |
681 | res = read (fd, buf, count); |
420 | lseek (fd, ooffset, SEEK_SET); |
682 | lseek (fd, ooffset, SEEK_SET); |
421 | pthread_mutex_unlock (&preadwritelock); |
683 | UNLOCK (preadwritelock); |
422 | |
684 | |
423 | return res; |
685 | return res; |
424 | } |
686 | } |
425 | |
687 | |
426 | static ssize_t |
|
|
427 | pwrite (int fd, void *buf, size_t count, off_t offset) |
688 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
428 | { |
689 | { |
429 | ssize_t res; |
690 | ssize_t res; |
430 | off_t ooffset; |
691 | off_t ooffset; |
431 | |
692 | |
432 | pthread_mutex_lock (&preadwritelock); |
693 | LOCK (preadwritelock); |
433 | ooffset = lseek (fd, 0, SEEK_CUR); |
694 | ooffset = lseek (fd, 0, SEEK_CUR); |
434 | lseek (fd, offset, SEEK_SET); |
695 | lseek (fd, offset, SEEK_SET); |
435 | res = write (fd, buf, count); |
696 | res = write (fd, buf, count); |
436 | lseek (fd, offset, SEEK_SET); |
697 | lseek (fd, offset, SEEK_SET); |
437 | pthread_mutex_unlock (&preadwritelock); |
698 | UNLOCK (preadwritelock); |
438 | |
699 | |
439 | return res; |
700 | return res; |
440 | } |
701 | } |
441 | #endif |
702 | #endif |
442 | |
703 | |
… | |
… | |
445 | #endif |
706 | #endif |
446 | |
707 | |
447 | #if !HAVE_READAHEAD |
708 | #if !HAVE_READAHEAD |
448 | # define readahead aio_readahead |
709 | # define readahead aio_readahead |
449 | |
710 | |
450 | static ssize_t |
|
|
451 | readahead (int fd, off_t offset, size_t count) |
711 | static ssize_t readahead (int fd, off_t offset, size_t count) |
452 | { |
712 | { |
453 | char readahead_buf[4096]; |
713 | dBUF; |
454 | |
714 | |
455 | while (count > 0) |
715 | while (count > 0) |
456 | { |
716 | { |
457 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
717 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
458 | |
718 | |
459 | pread (fd, readahead_buf, len, offset); |
719 | pread (fd, aio_buf, len, offset); |
460 | offset += len; |
720 | offset += len; |
461 | count -= len; |
721 | count -= len; |
462 | } |
722 | } |
463 | |
723 | |
464 | errno = 0; |
724 | errno = 0; |
… | |
… | |
468 | #if !HAVE_READDIR_R |
728 | #if !HAVE_READDIR_R |
469 | # define readdir_r aio_readdir_r |
729 | # define readdir_r aio_readdir_r |
470 | |
730 | |
471 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
731 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
472 | |
732 | |
473 | static int |
|
|
474 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
733 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
475 | { |
734 | { |
476 | struct dirent *e; |
735 | struct dirent *e; |
477 | int errorno; |
736 | int errorno; |
478 | |
737 | |
479 | pthread_mutex_lock (&readdirlock); |
738 | LOCK (readdirlock); |
480 | |
739 | |
481 | e = readdir (dirp); |
740 | e = readdir (dirp); |
482 | errorno = errno; |
741 | errorno = errno; |
483 | |
742 | |
484 | if (e) |
743 | if (e) |
… | |
… | |
487 | strcpy (ent->d_name, e->d_name); |
746 | strcpy (ent->d_name, e->d_name); |
488 | } |
747 | } |
489 | else |
748 | else |
490 | *res = 0; |
749 | *res = 0; |
491 | |
750 | |
492 | pthread_mutex_unlock (&readdirlock); |
751 | UNLOCK (readdirlock); |
493 | |
752 | |
494 | errno = errorno; |
753 | errno = errorno; |
495 | return e ? 0 : -1; |
754 | return e ? 0 : -1; |
496 | } |
755 | } |
497 | #endif |
756 | #endif |
498 | |
757 | |
499 | /* sendfile always needs emulation */ |
758 | /* sendfile always needs emulation */ |
500 | static ssize_t |
|
|
501 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
759 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
502 | { |
760 | { |
503 | ssize_t res; |
761 | ssize_t res; |
504 | |
762 | |
505 | if (!count) |
763 | if (!count) |
506 | return 0; |
764 | return 0; |
… | |
… | |
555 | #endif |
813 | #endif |
556 | ) |
814 | ) |
557 | ) |
815 | ) |
558 | { |
816 | { |
559 | /* emulate sendfile. this is a major pain in the ass */ |
817 | /* emulate sendfile. this is a major pain in the ass */ |
560 | char buf[4096]; |
818 | dBUF; |
|
|
819 | |
561 | res = 0; |
820 | res = 0; |
562 | |
821 | |
563 | while (count) |
822 | while (count) |
564 | { |
823 | { |
565 | ssize_t cnt; |
824 | ssize_t cnt; |
566 | |
825 | |
567 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
826 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
568 | |
827 | |
569 | if (cnt <= 0) |
828 | if (cnt <= 0) |
570 | { |
829 | { |
571 | if (cnt && !res) res = -1; |
830 | if (cnt && !res) res = -1; |
572 | break; |
831 | break; |
573 | } |
832 | } |
574 | |
833 | |
575 | cnt = write (ofd, buf, cnt); |
834 | cnt = write (ofd, aio_buf, cnt); |
576 | |
835 | |
577 | if (cnt <= 0) |
836 | if (cnt <= 0) |
578 | { |
837 | { |
579 | if (cnt && !res) res = -1; |
838 | if (cnt && !res) res = -1; |
580 | break; |
839 | break; |
… | |
… | |
588 | |
847 | |
589 | return res; |
848 | return res; |
590 | } |
849 | } |
591 | |
850 | |
592 | /* read a full directory */ |
851 | /* read a full directory */ |
593 | static int |
852 | static void scandir_ (aio_req req, worker *self) |
594 | scandir_ (const char *path, void **namesp) |
|
|
595 | { |
853 | { |
596 | DIR *dirp = opendir (path); |
854 | DIR *dirp; |
597 | union |
855 | union |
598 | { |
856 | { |
599 | struct dirent d; |
857 | struct dirent d; |
600 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
858 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
601 | } u; |
859 | } *u; |
602 | struct dirent *entp; |
860 | struct dirent *entp; |
603 | char *name, *names; |
861 | char *name, *names; |
604 | int memlen = 4096; |
862 | int memlen = 4096; |
605 | int memofs = 0; |
863 | int memofs = 0; |
606 | int res = 0; |
864 | int res = 0; |
607 | int errorno; |
865 | int errorno; |
608 | |
866 | |
609 | if (!dirp) |
867 | LOCK (wrklock); |
610 | return -1; |
868 | self->dirp = dirp = opendir (req->dataptr); |
|
|
869 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
870 | UNLOCK (wrklock); |
611 | |
871 | |
612 | names = malloc (memlen); |
872 | req->data2ptr = names = malloc (memlen); |
613 | |
873 | |
|
|
874 | if (dirp && u && names) |
614 | for (;;) |
875 | for (;;) |
615 | { |
876 | { |
|
|
877 | errno = 0; |
616 | errno = 0, readdir_r (dirp, &u.d, &entp); |
878 | readdir_r (dirp, &u->d, &entp); |
617 | |
879 | |
618 | if (!entp) |
880 | if (!entp) |
619 | break; |
881 | break; |
620 | |
882 | |
621 | name = entp->d_name; |
883 | name = entp->d_name; |
622 | |
884 | |
623 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
885 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
624 | { |
886 | { |
625 | int len = strlen (name) + 1; |
887 | int len = strlen (name) + 1; |
626 | |
888 | |
627 | res++; |
889 | res++; |
628 | |
890 | |
629 | while (memofs + len > memlen) |
891 | while (memofs + len > memlen) |
630 | { |
892 | { |
631 | memlen *= 2; |
893 | memlen *= 2; |
|
|
894 | LOCK (wrklock); |
632 | names = realloc (names, memlen); |
895 | req->data2ptr = names = realloc (names, memlen); |
|
|
896 | UNLOCK (wrklock); |
|
|
897 | |
633 | if (!names) |
898 | if (!names) |
634 | break; |
899 | break; |
635 | } |
900 | } |
636 | |
901 | |
637 | memcpy (names + memofs, name, len); |
902 | memcpy (names + memofs, name, len); |
638 | memofs += len; |
903 | memofs += len; |
639 | } |
904 | } |
640 | } |
905 | } |
641 | |
906 | |
642 | errorno = errno; |
|
|
643 | closedir (dirp); |
|
|
644 | |
|
|
645 | if (errorno) |
907 | if (errno) |
646 | { |
|
|
647 | free (names); |
|
|
648 | errno = errorno; |
|
|
649 | res = -1; |
908 | res = -1; |
650 | } |
909 | |
651 | |
910 | req->result = res; |
652 | *namesp = (void *)names; |
|
|
653 | return res; |
|
|
654 | } |
911 | } |
655 | |
912 | |
656 | /*****************************************************************************/ |
913 | /*****************************************************************************/ |
657 | |
914 | |
658 | static void * |
|
|
659 | aio_proc (void *thr_arg) |
915 | static void *aio_proc (void *thr_arg) |
660 | { |
916 | { |
661 | aio_req req; |
917 | aio_req req; |
662 | int type; |
918 | int type; |
|
|
919 | worker *self = (worker *)thr_arg; |
663 | |
920 | |
664 | do |
921 | do |
665 | { |
922 | { |
666 | pthread_mutex_lock (&reqlock); |
923 | LOCK (reqlock); |
667 | |
924 | |
668 | for (;;) |
925 | for (;;) |
669 | { |
926 | { |
670 | req = reqs; |
927 | self->req = req = reqq_shift (&req_queue); |
671 | |
|
|
672 | if (reqs) |
|
|
673 | { |
|
|
674 | reqs = reqs->next; |
|
|
675 | if (!reqs) reqe = 0; |
|
|
676 | } |
|
|
677 | |
928 | |
678 | if (req) |
929 | if (req) |
679 | break; |
930 | break; |
680 | |
931 | |
681 | pthread_cond_wait (&reqwait, &reqlock); |
932 | pthread_cond_wait (&reqwait, &reqlock); |
682 | } |
933 | } |
683 | |
934 | |
684 | pthread_mutex_unlock (&reqlock); |
935 | UNLOCK (reqlock); |
685 | |
936 | |
686 | errno = 0; /* strictly unnecessary */ |
937 | errno = 0; /* strictly unnecessary */ |
|
|
938 | type = req->type; /* remember type for QUIT check */ |
687 | |
939 | |
688 | if (!req->cancelled) |
940 | if (!(req->flags & FLAG_CANCELLED)) |
689 | switch (req->type) |
941 | switch (type) |
690 | { |
942 | { |
691 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
943 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
692 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
944 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
693 | |
945 | |
694 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
946 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
695 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
947 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
696 | |
948 | |
697 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
949 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
698 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
950 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
699 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
951 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
700 | |
952 | |
… | |
… | |
706 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
958 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
707 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
959 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
708 | |
960 | |
709 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
961 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
710 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
962 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
711 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
963 | case REQ_READDIR: scandir_ (req, self); break; |
712 | |
964 | |
|
|
965 | case REQ_BUSY: |
|
|
966 | { |
|
|
967 | struct timeval tv; |
|
|
968 | |
|
|
969 | tv.tv_sec = req->fd; |
|
|
970 | tv.tv_usec = req->fd2; |
|
|
971 | |
|
|
972 | req->result = select (0, 0, 0, 0, &tv); |
|
|
973 | } |
|
|
974 | |
|
|
975 | case REQ_GROUP: |
|
|
976 | case REQ_NOP: |
713 | case REQ_QUIT: |
977 | case REQ_QUIT: |
714 | break; |
978 | break; |
715 | |
979 | |
716 | default: |
980 | default: |
717 | req->result = ENOSYS; |
981 | req->result = ENOSYS; |
718 | break; |
982 | break; |
719 | } |
983 | } |
720 | |
984 | |
721 | req->errorno = errno; |
985 | req->errorno = errno; |
722 | |
986 | |
723 | pthread_mutex_lock (&reslock); |
987 | LOCK (reslock); |
724 | |
988 | |
725 | req->next = 0; |
989 | if (!reqq_push (&res_queue, req)) |
726 | |
|
|
727 | if (rese) |
|
|
728 | { |
|
|
729 | rese->next = req; |
|
|
730 | rese = req; |
|
|
731 | } |
|
|
732 | else |
|
|
733 | { |
|
|
734 | rese = ress = req; |
|
|
735 | |
|
|
736 | /* write a dummy byte to the pipe so fh becomes ready */ |
990 | /* write a dummy byte to the pipe so fh becomes ready */ |
737 | write (respipe [1], &respipe, 1); |
991 | write (respipe [1], &respipe, 1); |
738 | } |
|
|
739 | |
992 | |
740 | pthread_mutex_unlock (&reslock); |
993 | self->req = 0; |
|
|
994 | worker_clear (self); |
|
|
995 | |
|
|
996 | UNLOCK (reslock); |
741 | } |
997 | } |
742 | while (type != REQ_QUIT); |
998 | while (type != REQ_QUIT); |
743 | |
999 | |
|
|
1000 | LOCK (wrklock); |
|
|
1001 | worker_free (self); |
|
|
1002 | UNLOCK (wrklock); |
|
|
1003 | |
744 | return 0; |
1004 | return 0; |
745 | } |
1005 | } |
746 | |
1006 | |
747 | /*****************************************************************************/ |
1007 | /*****************************************************************************/ |
748 | |
1008 | |
749 | static void atfork_prepare (void) |
1009 | static void atfork_prepare (void) |
750 | { |
1010 | { |
751 | pthread_mutex_lock (&reqlock); |
1011 | LOCK (wrklock); |
752 | pthread_mutex_lock (&reslock); |
1012 | LOCK (reqlock); |
|
|
1013 | LOCK (reslock); |
753 | #if !HAVE_PREADWRITE |
1014 | #if !HAVE_PREADWRITE |
754 | pthread_mutex_lock (&preadwritelock); |
1015 | LOCK (preadwritelock); |
755 | #endif |
1016 | #endif |
756 | #if !HAVE_READDIR_R |
1017 | #if !HAVE_READDIR_R |
757 | pthread_mutex_lock (&readdirlock); |
1018 | LOCK (readdirlock); |
758 | #endif |
1019 | #endif |
759 | } |
1020 | } |
760 | |
1021 | |
761 | static void atfork_parent (void) |
1022 | static void atfork_parent (void) |
762 | { |
1023 | { |
763 | #if !HAVE_READDIR_R |
1024 | #if !HAVE_READDIR_R |
764 | pthread_mutex_unlock (&readdirlock); |
1025 | UNLOCK (readdirlock); |
765 | #endif |
1026 | #endif |
766 | #if !HAVE_PREADWRITE |
1027 | #if !HAVE_PREADWRITE |
767 | pthread_mutex_unlock (&preadwritelock); |
1028 | UNLOCK (preadwritelock); |
768 | #endif |
1029 | #endif |
769 | pthread_mutex_unlock (&reslock); |
1030 | UNLOCK (reslock); |
770 | pthread_mutex_unlock (&reqlock); |
1031 | UNLOCK (reqlock); |
|
|
1032 | UNLOCK (wrklock); |
771 | } |
1033 | } |
772 | |
1034 | |
773 | static void atfork_child (void) |
1035 | static void atfork_child (void) |
774 | { |
1036 | { |
775 | aio_req prv; |
1037 | aio_req prv; |
776 | |
1038 | |
|
|
1039 | while (prv = reqq_shift (&req_queue)) |
|
|
1040 | req_free (prv); |
|
|
1041 | |
|
|
1042 | while (prv = reqq_shift (&res_queue)) |
|
|
1043 | req_free (prv); |
|
|
1044 | |
|
|
1045 | while (wrk_first.next != &wrk_first) |
|
|
1046 | { |
|
|
1047 | worker *wrk = wrk_first.next; |
|
|
1048 | |
|
|
1049 | if (wrk->req) |
|
|
1050 | req_free (wrk->req); |
|
|
1051 | |
|
|
1052 | worker_clear (wrk); |
|
|
1053 | worker_free (wrk); |
|
|
1054 | } |
|
|
1055 | |
777 | started = 0; |
1056 | started = 0; |
778 | |
1057 | nreqs = 0; |
779 | while (reqs) |
|
|
780 | { |
|
|
781 | prv = reqs; |
|
|
782 | reqs = prv->next; |
|
|
783 | req_free (prv); |
|
|
784 | } |
|
|
785 | |
|
|
786 | reqs = reqe = 0; |
|
|
787 | |
|
|
788 | while (ress) |
|
|
789 | { |
|
|
790 | prv = ress; |
|
|
791 | ress = prv->next; |
|
|
792 | req_free (prv); |
|
|
793 | } |
|
|
794 | |
|
|
795 | ress = rese = 0; |
|
|
796 | |
1058 | |
797 | close (respipe [0]); |
1059 | close (respipe [0]); |
798 | close (respipe [1]); |
1060 | close (respipe [1]); |
799 | create_pipe (); |
1061 | create_pipe (); |
800 | |
1062 | |
801 | atfork_parent (); |
1063 | atfork_parent (); |
802 | } |
1064 | } |
803 | |
1065 | |
804 | #define dREQ \ |
1066 | #define dREQ \ |
805 | aio_req req; \ |
1067 | aio_req req; \ |
|
|
1068 | int req_pri = next_pri; \ |
|
|
1069 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
806 | \ |
1070 | \ |
807 | if (SvOK (callback) && !SvROK (callback)) \ |
1071 | if (SvOK (callback) && !SvROK (callback)) \ |
808 | croak ("callback must be undef or of reference type"); \ |
1072 | croak ("callback must be undef or of reference type"); \ |
809 | \ |
1073 | \ |
810 | Newz (0, req, 1, aio_cb); \ |
1074 | Newz (0, req, 1, aio_cb); \ |
811 | if (!req) \ |
1075 | if (!req) \ |
812 | croak ("out of memory during aio_req allocation"); \ |
1076 | croak ("out of memory during aio_req allocation"); \ |
813 | \ |
1077 | \ |
814 | req->callback = newSVsv (callback) |
1078 | req->callback = newSVsv (callback); \ |
|
|
1079 | req->pri = req_pri |
815 | |
1080 | |
816 | #define REQ_SEND \ |
1081 | #define REQ_SEND \ |
817 | req_send (req); \ |
1082 | req_send (req); \ |
818 | \ |
1083 | \ |
819 | if (GIMME_V != G_VOID) \ |
1084 | if (GIMME_V != G_VOID) \ |
… | |
… | |
1073 | |
1338 | |
1074 | REQ_SEND; |
1339 | REQ_SEND; |
1075 | } |
1340 | } |
1076 | |
1341 | |
1077 | void |
1342 | void |
|
|
1343 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1344 | double delay |
|
|
1345 | SV * callback |
|
|
1346 | PPCODE: |
|
|
1347 | { |
|
|
1348 | dREQ; |
|
|
1349 | |
|
|
1350 | req->type = REQ_BUSY; |
|
|
1351 | req->fd = delay < 0. ? 0 : delay; |
|
|
1352 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1353 | |
|
|
1354 | REQ_SEND; |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | void |
1078 | aio_group (callback=&PL_sv_undef) |
1358 | aio_group (callback=&PL_sv_undef) |
1079 | SV * callback |
1359 | SV * callback |
1080 | PROTOTYPE: ;& |
1360 | PROTOTYPE: ;$ |
1081 | PPCODE: |
1361 | PPCODE: |
1082 | { |
1362 | { |
1083 | dREQ; |
1363 | dREQ; |
|
|
1364 | |
1084 | req->type = REQ_GROUP; |
1365 | req->type = REQ_GROUP; |
|
|
1366 | req_send (req); |
|
|
1367 | |
1085 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1368 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1086 | } |
1369 | } |
|
|
1370 | |
|
|
1371 | void |
|
|
1372 | aio_nop (callback=&PL_sv_undef) |
|
|
1373 | SV * callback |
|
|
1374 | PPCODE: |
|
|
1375 | { |
|
|
1376 | dREQ; |
|
|
1377 | |
|
|
1378 | req->type = REQ_NOP; |
|
|
1379 | |
|
|
1380 | REQ_SEND; |
|
|
1381 | } |
|
|
1382 | |
|
|
1383 | void |
|
|
1384 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1385 | CODE: |
|
|
1386 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1387 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1388 | next_pri = pri + PRI_BIAS; |
|
|
1389 | |
|
|
1390 | void |
|
|
1391 | aioreq_nice (int nice = 0) |
|
|
1392 | CODE: |
|
|
1393 | nice = next_pri - nice; |
|
|
1394 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1395 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1396 | next_pri = nice + PRI_BIAS; |
1087 | |
1397 | |
1088 | void |
1398 | void |
1089 | flush () |
1399 | flush () |
1090 | PROTOTYPE: |
1400 | PROTOTYPE: |
1091 | CODE: |
1401 | CODE: |
… | |
… | |
1134 | CODE: |
1444 | CODE: |
1135 | RETVAL = nreqs; |
1445 | RETVAL = nreqs; |
1136 | OUTPUT: |
1446 | OUTPUT: |
1137 | RETVAL |
1447 | RETVAL |
1138 | |
1448 | |
|
|
1449 | PROTOTYPES: DISABLE |
|
|
1450 | |
1139 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1451 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1140 | |
1452 | |
1141 | void |
1453 | void |
1142 | cancel (aio_req_ornot req) |
1454 | cancel (aio_req_ornot req) |
1143 | PROTOTYPE: |
|
|
1144 | CODE: |
1455 | CODE: |
1145 | req->cancelled = 1; |
1456 | req_cancel (req); |
1146 | |
1457 | |
|
|
1458 | void |
|
|
1459 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1460 | CODE: |
|
|
1461 | SvREFCNT_dec (req->callback); |
|
|
1462 | req->callback = newSVsv (callback); |
|
|
1463 | |
|
|
1464 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1465 | |
|
|
1466 | void |
|
|
1467 | add (aio_req grp, ...) |
|
|
1468 | PPCODE: |
|
|
1469 | { |
|
|
1470 | int i; |
|
|
1471 | aio_req req; |
|
|
1472 | |
|
|
1473 | if (grp->fd == 2) |
|
|
1474 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1475 | |
|
|
1476 | for (i = 1; i < items; ++i ) |
|
|
1477 | { |
|
|
1478 | if (GIMME_V != G_VOID) |
|
|
1479 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1480 | |
|
|
1481 | req = SvAIO_REQ (ST (i)); |
|
|
1482 | |
|
|
1483 | if (req) |
|
|
1484 | { |
|
|
1485 | ++grp->length; |
|
|
1486 | req->grp = grp; |
|
|
1487 | |
|
|
1488 | req->grp_prev = 0; |
|
|
1489 | req->grp_next = grp->grp_first; |
|
|
1490 | |
|
|
1491 | if (grp->grp_first) |
|
|
1492 | grp->grp_first->grp_prev = req; |
|
|
1493 | |
|
|
1494 | grp->grp_first = req; |
|
|
1495 | } |
|
|
1496 | } |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | void |
|
|
1500 | result (aio_req grp, ...) |
|
|
1501 | CODE: |
|
|
1502 | { |
|
|
1503 | int i; |
|
|
1504 | AV *av = newAV (); |
|
|
1505 | |
|
|
1506 | for (i = 1; i < items; ++i ) |
|
|
1507 | av_push (av, newSVsv (ST (i))); |
|
|
1508 | |
|
|
1509 | SvREFCNT_dec (grp->data); |
|
|
1510 | grp->data = (SV *)av; |
|
|
1511 | } |
|
|
1512 | |
|
|
1513 | void |
|
|
1514 | limit (aio_req grp, int limit) |
|
|
1515 | CODE: |
|
|
1516 | grp->fd2 = limit; |
|
|
1517 | aio_grp_feed (grp); |
|
|
1518 | |
|
|
1519 | void |
|
|
1520 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1521 | CODE: |
|
|
1522 | { |
|
|
1523 | SvREFCNT_dec (grp->fh2); |
|
|
1524 | grp->fh2 = newSVsv (callback); |
|
|
1525 | |
|
|
1526 | if (grp->fd2 <= 0) |
|
|
1527 | grp->fd2 = 2; |
|
|
1528 | |
|
|
1529 | aio_grp_feed (grp); |
|
|
1530 | } |
|
|
1531 | |