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101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
102 | |
102 | |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
105 | |
105 | |
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106 | static void req_invoke (aio_req req); |
106 | static void req_free (aio_req req); |
107 | static void req_free (aio_req req); |
107 | |
108 | |
108 | /* must be called at most once */ |
109 | /* must be called at most once */ |
109 | static SV *req_sv (aio_req req, const char *klass) |
110 | static SV *req_sv (aio_req req, const char *klass) |
110 | { |
111 | { |
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117 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
118 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
118 | } |
119 | } |
119 | |
120 | |
120 | static aio_req SvAIO_REQ (SV *sv) |
121 | static aio_req SvAIO_REQ (SV *sv) |
121 | { |
122 | { |
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123 | MAGIC *mg; |
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124 | |
122 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
125 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
123 | croak ("object of class " AIO_REQ_KLASS " expected"); |
126 | croak ("object of class " AIO_REQ_KLASS " expected"); |
124 | |
127 | |
125 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
128 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
126 | |
129 | |
127 | return mg ? (aio_req)mg->mg_ptr : 0; |
130 | return mg ? (aio_req)mg->mg_ptr : 0; |
128 | } |
131 | } |
129 | |
132 | |
130 | static void aio_grp_feed (aio_req grp) |
133 | static void aio_grp_feed (aio_req grp) |
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156 | break; |
159 | break; |
157 | } |
160 | } |
158 | } |
161 | } |
159 | } |
162 | } |
160 | |
163 | |
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164 | static void aio_grp_dec (aio_req grp) |
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165 | { |
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166 | --grp->length; |
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167 | |
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168 | /* call feeder, if applicable */ |
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169 | aio_grp_feed (grp); |
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170 | |
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171 | /* finish, if done */ |
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172 | if (!grp->length && grp->fd) |
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173 | { |
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174 | req_invoke (grp); |
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175 | req_free (grp); |
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176 | } |
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177 | } |
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178 | |
161 | static void poll_wait () |
179 | static void poll_wait () |
162 | { |
180 | { |
163 | if (nreqs && !ress) |
181 | if (nreqs && !ress) |
164 | { |
182 | { |
165 | fd_set rfd; |
183 | fd_set rfd; |
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254 | |
272 | |
255 | PUTBACK; |
273 | PUTBACK; |
256 | call_sv (req->callback, G_VOID | G_EVAL); |
274 | call_sv (req->callback, G_VOID | G_EVAL); |
257 | SPAGAIN; |
275 | SPAGAIN; |
258 | |
276 | |
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|
277 | FREETMPS; |
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|
278 | LEAVE; |
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279 | |
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|
280 | errno = errorno; |
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281 | |
259 | if (SvTRUE (ERRSV)) |
282 | if (SvTRUE (ERRSV)) |
260 | { |
283 | { |
261 | req_free (req); |
284 | req_free (req); |
262 | croak (0); |
285 | croak (0); |
263 | } |
286 | } |
264 | |
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|
265 | FREETMPS; |
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|
266 | LEAVE; |
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|
267 | |
|
|
268 | errno = errorno; |
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|
269 | } |
287 | } |
270 | |
288 | |
271 | static void req_free (aio_req req) |
289 | static void req_free (aio_req req) |
272 | { |
290 | { |
273 | if (req->grp) |
291 | if (req->grp) |
… | |
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279 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
297 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
280 | |
298 | |
281 | if (grp->grp_first == req) |
299 | if (grp->grp_first == req) |
282 | grp->grp_first = req->grp_next; |
300 | grp->grp_first = req->grp_next; |
283 | |
301 | |
284 | --grp->length; |
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|
285 | |
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|
286 | /* call feeder, if applicable */ |
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|
287 | aio_grp_feed (grp); |
302 | aio_grp_dec (grp); |
288 | |
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|
289 | /* finish, if done */ |
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|
290 | if (!grp->length && grp->fd) |
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|
291 | { |
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|
292 | req_invoke (grp); |
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|
293 | req_free (grp); |
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|
294 | } |
|
|
295 | } |
303 | } |
296 | |
304 | |
297 | if (req->self) |
305 | if (req->self) |
298 | { |
306 | { |
299 | sv_unmagic (req->self, PERL_MAGIC_ext); |
307 | sv_unmagic (req->self, PERL_MAGIC_ext); |
… | |
… | |
355 | pthread_mutex_unlock (&reslock); |
363 | pthread_mutex_unlock (&reslock); |
356 | |
364 | |
357 | if (!req) |
365 | if (!req) |
358 | break; |
366 | break; |
359 | |
367 | |
360 | nreqs--; |
368 | --nreqs; |
361 | |
369 | |
362 | if (req->type == REQ_QUIT) |
370 | if (req->type == REQ_QUIT) |
363 | started--; |
371 | started--; |
364 | else if (req->type == REQ_GROUP && req->length) |
372 | else if (req->type == REQ_GROUP && req->length) |
365 | { |
373 | { |
… | |
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416 | static void req_send (aio_req req) |
424 | static void req_send (aio_req req) |
417 | { |
425 | { |
418 | while (started < wanted && nreqs >= started) |
426 | while (started < wanted && nreqs >= started) |
419 | start_thread (); |
427 | start_thread (); |
420 | |
428 | |
421 | nreqs++; |
429 | ++nreqs; |
422 | |
430 | |
423 | pthread_mutex_lock (&reqlock); |
431 | pthread_mutex_lock (&reqlock); |
424 | |
432 | |
425 | req->next = 0; |
433 | req->next = 0; |
426 | |
434 | |
… | |
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778 | pthread_mutex_unlock (&reqlock); |
786 | pthread_mutex_unlock (&reqlock); |
779 | |
787 | |
780 | errno = 0; /* strictly unnecessary */ |
788 | errno = 0; /* strictly unnecessary */ |
781 | |
789 | |
782 | if (!req->cancelled) |
790 | if (!req->cancelled) |
783 | switch (req->type) |
791 | switch (type = req->type) /* remember type for QUIT check */ |
784 | { |
792 | { |
785 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
793 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
786 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
794 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
787 | |
795 | |
788 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
796 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
1271 | void |
1279 | void |
1272 | add (aio_req grp, ...) |
1280 | add (aio_req grp, ...) |
1273 | PPCODE: |
1281 | PPCODE: |
1274 | { |
1282 | { |
1275 | int i; |
1283 | int i; |
|
|
1284 | aio_req req; |
1276 | |
1285 | |
1277 | if (grp->fd == 2) |
1286 | if (grp->fd == 2) |
1278 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1287 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1279 | |
1288 | |
1280 | for (i = 1; i < items; ++i ) |
1289 | for (i = 1; i < items; ++i ) |
1281 | { |
1290 | { |
1282 | if (GIMME_V != G_VOID) |
1291 | if (GIMME_V != G_VOID) |
1283 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1292 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1284 | |
1293 | |
1285 | aio_req req = SvAIO_REQ (ST (i)); |
1294 | req = SvAIO_REQ (ST (i)); |
1286 | |
1295 | |
1287 | if (req) |
1296 | if (req) |
1288 | { |
1297 | { |
1289 | ++grp->length; |
1298 | ++grp->length; |
1290 | req->grp = grp; |
1299 | req->grp = grp; |
… | |
… | |
1300 | } |
1309 | } |
1301 | } |
1310 | } |
1302 | |
1311 | |
1303 | void |
1312 | void |
1304 | result (aio_req grp, ...) |
1313 | result (aio_req grp, ...) |
1305 | CODE: |
1314 | CODE: |
1306 | { |
1315 | { |
1307 | int i; |
1316 | int i; |
1308 | AV *av = newAV (); |
1317 | AV *av = newAV (); |
1309 | |
1318 | |
1310 | for (i = 1; i < items; ++i ) |
1319 | for (i = 1; i < items; ++i ) |
1311 | av_push (av, newSVsv (ST (i))); |
1320 | av_push (av, newSVsv (ST (i))); |
1312 | |
1321 | |
1313 | SvREFCNT_dec (grp->data); |
1322 | SvREFCNT_dec (grp->data); |
1314 | grp->data = (SV *)av; |
1323 | grp->data = (SV *)av; |
1315 | } |
1324 | } |
|
|
1325 | |
|
|
1326 | void |
|
|
1327 | lock (aio_req grp) |
|
|
1328 | CODE: |
|
|
1329 | ++grp->length; |
|
|
1330 | |
|
|
1331 | void |
|
|
1332 | unlock (aio_req grp) |
|
|
1333 | CODE: |
|
|
1334 | aio_grp_dec (grp); |
1316 | |
1335 | |
1317 | void |
1336 | void |
1318 | feeder_limit (aio_req grp, int limit) |
1337 | feeder_limit (aio_req grp, int limit) |
1319 | CODE: |
1338 | CODE: |
1320 | grp->fd2 = limit; |
1339 | grp->fd2 = limit; |