… | |
… | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
66 | |
67 | typedef struct aio_cb |
67 | typedef struct aio_cb |
68 | { |
68 | { |
69 | struct aio_cb *grp, *grp_prev, *grp_next; |
|
|
70 | |
|
|
71 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
|
|
70 | |
|
|
71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
72 | |
72 | |
73 | SV *self; /* the perl counterpart of this request, if any */ |
73 | SV *self; /* the perl counterpart of this request, if any */ |
74 | |
74 | |
75 | SV *data, *callback; |
75 | SV *data, *callback; |
76 | SV *fh, *fh2; |
76 | SV *fh, *fh2; |
… | |
… | |
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 | |
|
|
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 | { |
|
|
112 | if (!req->self) |
|
|
113 | { |
111 | req->self = (SV *)newHV (); |
114 | req->self = (SV *)newHV (); |
112 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
115 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
|
|
116 | } |
113 | |
117 | |
114 | 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))); |
115 | } |
119 | } |
116 | |
120 | |
117 | static aio_req SvAIO_REQ (SV *sv) |
121 | static aio_req SvAIO_REQ (SV *sv) |
… | |
… | |
120 | croak ("object of class " AIO_REQ_KLASS " expected"); |
124 | croak ("object of class " AIO_REQ_KLASS " expected"); |
121 | |
125 | |
122 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
126 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
123 | |
127 | |
124 | return mg ? (aio_req)mg->mg_ptr : 0; |
128 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
|
129 | } |
|
|
130 | |
|
|
131 | static void aio_grp_feed (aio_req grp) |
|
|
132 | { |
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|
133 | while (grp->length < grp->fd2) |
|
|
134 | { |
|
|
135 | int old_len = grp->length; |
|
|
136 | |
|
|
137 | if (grp->fh2 && SvOK (grp->fh2)) |
|
|
138 | { |
|
|
139 | dSP; |
|
|
140 | |
|
|
141 | ENTER; |
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|
142 | SAVETMPS; |
|
|
143 | PUSHMARK (SP); |
|
|
144 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
145 | PUTBACK; |
|
|
146 | call_sv (grp->fh2, G_VOID | G_EVAL); |
|
|
147 | SPAGAIN; |
|
|
148 | FREETMPS; |
|
|
149 | LEAVE; |
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|
150 | } |
|
|
151 | |
|
|
152 | /* stop if no progress has been made */ |
|
|
153 | if (old_len == grp->length) |
|
|
154 | { |
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|
155 | SvREFCNT_dec (grp->fh2); |
|
|
156 | grp->fh2 = 0; |
|
|
157 | break; |
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|
158 | } |
|
|
159 | } |
|
|
160 | } |
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|
161 | |
|
|
162 | static void aio_grp_dec (aio_req grp) |
|
|
163 | { |
|
|
164 | --grp->length; |
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|
165 | |
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|
166 | /* call feeder, if applicable */ |
|
|
167 | aio_grp_feed (grp); |
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|
168 | |
|
|
169 | /* finish, if done */ |
|
|
170 | if (!grp->length && grp->fd) |
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|
171 | { |
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|
172 | req_invoke (grp); |
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|
173 | req_free (grp); |
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|
174 | } |
125 | } |
175 | } |
126 | |
176 | |
127 | static void poll_wait () |
177 | static void poll_wait () |
128 | { |
178 | { |
129 | if (nreqs && !ress) |
179 | if (nreqs && !ress) |
… | |
… | |
145 | return; |
195 | return; |
146 | |
196 | |
147 | errno = req->errorno; |
197 | errno = req->errorno; |
148 | |
198 | |
149 | ENTER; |
199 | ENTER; |
|
|
200 | SAVETMPS; |
150 | PUSHMARK (SP); |
201 | PUSHMARK (SP); |
|
|
202 | EXTEND (SP, 1); |
151 | |
203 | |
152 | switch (req->type) |
204 | switch (req->type) |
153 | { |
205 | { |
154 | case REQ_READDIR: |
206 | case REQ_READDIR: |
155 | { |
207 | { |
… | |
… | |
170 | } |
222 | } |
171 | |
223 | |
172 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
224 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
173 | } |
225 | } |
174 | |
226 | |
175 | XPUSHs (rv); |
227 | PUSHs (rv); |
176 | } |
228 | } |
177 | break; |
229 | break; |
178 | |
230 | |
179 | case REQ_OPEN: |
231 | case REQ_OPEN: |
180 | { |
232 | { |
181 | /* convert fd to fh */ |
233 | /* convert fd to fh */ |
182 | SV *fh; |
234 | SV *fh; |
183 | |
235 | |
184 | XPUSHs (sv_2mortal (newSViv (req->result))); |
236 | PUSHs (sv_2mortal (newSViv (req->result))); |
185 | PUTBACK; |
237 | PUTBACK; |
186 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
238 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
187 | SPAGAIN; |
239 | SPAGAIN; |
188 | |
240 | |
189 | fh = SvREFCNT_inc (POPs); |
241 | fh = SvREFCNT_inc (POPs); |
… | |
… | |
191 | PUSHMARK (SP); |
243 | PUSHMARK (SP); |
192 | XPUSHs (sv_2mortal (fh)); |
244 | XPUSHs (sv_2mortal (fh)); |
193 | } |
245 | } |
194 | break; |
246 | break; |
195 | |
247 | |
|
|
248 | case REQ_GROUP: |
|
|
249 | req->fd = 2; /* mark group as finished */ |
|
|
250 | |
|
|
251 | if (req->data) |
|
|
252 | { |
|
|
253 | int i; |
|
|
254 | AV *av = (AV *)req->data; |
|
|
255 | |
|
|
256 | EXTEND (SP, AvFILL (av) + 1); |
|
|
257 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
258 | PUSHs (*av_fetch (av, i, 0)); |
|
|
259 | } |
|
|
260 | break; |
|
|
261 | |
196 | case REQ_SLEEP: |
262 | case REQ_SLEEP: |
197 | case REQ_GROUP: |
|
|
198 | break; |
263 | break; |
199 | |
264 | |
200 | default: |
265 | default: |
201 | XPUSHs (sv_2mortal (newSViv (req->result))); |
266 | PUSHs (sv_2mortal (newSViv (req->result))); |
202 | break; |
267 | break; |
203 | } |
268 | } |
204 | |
269 | |
205 | |
270 | |
206 | PUTBACK; |
271 | PUTBACK; |
207 | call_sv (req->callback, G_VOID | G_EVAL); |
272 | call_sv (req->callback, G_VOID | G_EVAL); |
208 | SPAGAIN; |
273 | SPAGAIN; |
209 | |
274 | |
|
|
275 | FREETMPS; |
|
|
276 | LEAVE; |
|
|
277 | |
|
|
278 | errno = errorno; |
|
|
279 | |
210 | if (SvTRUE (ERRSV)) |
280 | if (SvTRUE (ERRSV)) |
211 | { |
281 | { |
212 | req_free (req); |
282 | req_free (req); |
213 | croak (0); |
283 | croak (0); |
214 | } |
284 | } |
215 | |
|
|
216 | LEAVE; |
|
|
217 | |
|
|
218 | errno = errorno; |
|
|
219 | } |
285 | } |
220 | |
286 | |
221 | static void req_free (aio_req req) |
287 | static void req_free (aio_req req) |
222 | { |
288 | { |
223 | if (req->grp) |
289 | if (req->grp) |
224 | { |
290 | { |
225 | aio_req grp = req->grp; |
291 | aio_req grp = req->grp; |
226 | |
292 | |
227 | /* unlink request */ |
293 | /* unlink request */ |
228 | req->grp_next->grp_prev = req->grp_prev; |
294 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
229 | req->grp_prev->grp_next = req->grp_next; |
295 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
230 | |
296 | |
231 | if (grp->grp_next == grp && grp->fd) |
297 | if (grp->grp_first == req) |
232 | { |
298 | grp->grp_first = req->grp_next; |
233 | req_invoke (grp); |
299 | |
234 | req_free (grp); |
300 | aio_grp_dec (grp); |
235 | } |
|
|
236 | } |
301 | } |
237 | |
302 | |
238 | if (req->self) |
303 | if (req->self) |
239 | { |
304 | { |
240 | sv_unmagic (req->self, PERL_MAGIC_ext); |
305 | sv_unmagic (req->self, PERL_MAGIC_ext); |
241 | SvREFCNT_dec (req->self); |
306 | SvREFCNT_dec (req->self); |
242 | } |
307 | } |
243 | |
308 | |
244 | if (req->data) |
|
|
245 | SvREFCNT_dec (req->data); |
309 | SvREFCNT_dec (req->data); |
246 | |
|
|
247 | if (req->fh) |
|
|
248 | SvREFCNT_dec (req->fh); |
310 | SvREFCNT_dec (req->fh); |
249 | |
|
|
250 | if (req->fh2) |
|
|
251 | SvREFCNT_dec (req->fh2); |
311 | SvREFCNT_dec (req->fh2); |
252 | |
|
|
253 | if (req->statdata) |
|
|
254 | Safefree (req->statdata); |
|
|
255 | |
|
|
256 | if (req->callback) |
|
|
257 | SvREFCNT_dec (req->callback); |
312 | SvREFCNT_dec (req->callback); |
|
|
313 | Safefree (req->statdata); |
258 | |
314 | |
259 | if (req->type == REQ_READDIR && req->result >= 0) |
315 | if (req->type == REQ_READDIR && req->result >= 0) |
260 | free (req->data2ptr); |
316 | free (req->data2ptr); |
261 | |
317 | |
262 | Safefree (req); |
318 | Safefree (req); |
… | |
… | |
268 | |
324 | |
269 | if (req->type == REQ_GROUP) |
325 | if (req->type == REQ_GROUP) |
270 | { |
326 | { |
271 | aio_req sub; |
327 | aio_req sub; |
272 | |
328 | |
273 | for (sub = req->grp_next; sub != req; sub = sub->grp_next) |
329 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
274 | req_cancel (sub); |
330 | req_cancel (sub); |
275 | } |
331 | } |
276 | } |
332 | } |
277 | |
333 | |
278 | static int poll_cb () |
334 | static int poll_cb () |
… | |
… | |
305 | pthread_mutex_unlock (&reslock); |
361 | pthread_mutex_unlock (&reslock); |
306 | |
362 | |
307 | if (!req) |
363 | if (!req) |
308 | break; |
364 | break; |
309 | |
365 | |
310 | nreqs--; |
366 | --nreqs; |
311 | |
367 | |
312 | if (req->type == REQ_QUIT) |
368 | if (req->type == REQ_QUIT) |
313 | started--; |
369 | started--; |
314 | else if (req->type == REQ_GROUP && req->grp_next != req) |
370 | else if (req->type == REQ_GROUP && req->length) |
315 | { |
371 | { |
316 | req->fd = 1; /* mark request as delayed */ |
372 | req->fd = 1; /* mark request as delayed */ |
317 | continue; |
373 | continue; |
318 | } |
374 | } |
319 | else |
375 | else |
… | |
… | |
366 | static void req_send (aio_req req) |
422 | static void req_send (aio_req req) |
367 | { |
423 | { |
368 | while (started < wanted && nreqs >= started) |
424 | while (started < wanted && nreqs >= started) |
369 | start_thread (); |
425 | start_thread (); |
370 | |
426 | |
371 | nreqs++; |
427 | ++nreqs; |
372 | |
428 | |
373 | pthread_mutex_lock (&reqlock); |
429 | pthread_mutex_lock (&reqlock); |
374 | |
430 | |
375 | req->next = 0; |
431 | req->next = 0; |
376 | |
432 | |
… | |
… | |
728 | pthread_mutex_unlock (&reqlock); |
784 | pthread_mutex_unlock (&reqlock); |
729 | |
785 | |
730 | errno = 0; /* strictly unnecessary */ |
786 | errno = 0; /* strictly unnecessary */ |
731 | |
787 | |
732 | if (!req->cancelled) |
788 | if (!req->cancelled) |
733 | switch (req->type) |
789 | switch (type = req->type) /* remember type for QUIT check */ |
734 | { |
790 | { |
735 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
791 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
736 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
792 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
737 | |
793 | |
738 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
794 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
776 | |
832 | |
777 | pthread_mutex_lock (&reslock); |
833 | pthread_mutex_lock (&reslock); |
778 | |
834 | |
779 | req->next = 0; |
835 | req->next = 0; |
780 | |
836 | |
|
|
837 | printf ("queue rese %p\n", rese);//D |
781 | if (rese) |
838 | if (rese) |
782 | { |
839 | { |
783 | rese->next = req; |
840 | rese->next = req; |
784 | rese = req; |
841 | rese = req; |
785 | } |
842 | } |
… | |
… | |
1149 | PROTOTYPE: ;$ |
1206 | PROTOTYPE: ;$ |
1150 | PPCODE: |
1207 | PPCODE: |
1151 | { |
1208 | { |
1152 | dREQ; |
1209 | dREQ; |
1153 | req->type = REQ_GROUP; |
1210 | req->type = REQ_GROUP; |
1154 | req->grp_next = req; |
|
|
1155 | req->grp_prev = req; |
|
|
1156 | |
|
|
1157 | req_send (req); |
1211 | req_send (req); |
1158 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1212 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1159 | } |
1213 | } |
1160 | |
1214 | |
1161 | void |
1215 | void |
… | |
… | |
1207 | CODE: |
1261 | CODE: |
1208 | RETVAL = nreqs; |
1262 | RETVAL = nreqs; |
1209 | OUTPUT: |
1263 | OUTPUT: |
1210 | RETVAL |
1264 | RETVAL |
1211 | |
1265 | |
|
|
1266 | PROTOTYPES: DISABLE |
|
|
1267 | |
1212 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1268 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1213 | |
1269 | |
1214 | void |
1270 | void |
1215 | cancel (aio_req_ornot req) |
1271 | cancel (aio_req_ornot req) |
1216 | PROTOTYPE: |
1272 | PROTOTYPE: |
… | |
… | |
1219 | |
1275 | |
1220 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1276 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1221 | |
1277 | |
1222 | void |
1278 | void |
1223 | add (aio_req grp, ...) |
1279 | add (aio_req grp, ...) |
1224 | PROTOTYPE: $;@ |
|
|
1225 | PPCODE: |
1280 | PPCODE: |
1226 | { |
1281 | { |
1227 | int i; |
1282 | int i; |
|
|
1283 | |
|
|
1284 | if (grp->fd == 2) |
|
|
1285 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1228 | |
1286 | |
1229 | for (i = 1; i < items; ++i ) |
1287 | for (i = 1; i < items; ++i ) |
1230 | { |
1288 | { |
1231 | if (GIMME_V != G_VOID) |
1289 | if (GIMME_V != G_VOID) |
1232 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1290 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1233 | |
1291 | |
1234 | aio_req req = SvAIO_REQ (ST (i)); |
1292 | aio_req req = SvAIO_REQ (ST (i)); |
1235 | printf ("req = %p\n", req);//D |
|
|
1236 | |
1293 | |
1237 | if (req) |
1294 | if (req) |
1238 | { |
1295 | { |
1239 | req->grp_prev = grp; |
1296 | ++grp->length; |
1240 | req->grp_next = grp->grp_next; |
|
|
1241 | grp->grp_next->grp_prev = req; |
|
|
1242 | grp->grp_next = req; |
|
|
1243 | |
|
|
1244 | req->grp = grp; |
1297 | req->grp = grp; |
|
|
1298 | |
|
|
1299 | req->grp_prev = 0; |
|
|
1300 | req->grp_next = grp->grp_first; |
|
|
1301 | |
|
|
1302 | if (grp->grp_first) |
|
|
1303 | grp->grp_first->grp_prev = req; |
|
|
1304 | |
|
|
1305 | grp->grp_first = req; |
1245 | } |
1306 | } |
1246 | } |
1307 | } |
1247 | } |
1308 | } |
1248 | |
1309 | |
|
|
1310 | void |
|
|
1311 | result (aio_req grp, ...) |
|
|
1312 | CODE: |
|
|
1313 | { |
|
|
1314 | int i; |
|
|
1315 | AV *av = newAV (); |
|
|
1316 | |
|
|
1317 | for (i = 1; i < items; ++i ) |
|
|
1318 | av_push (av, newSVsv (ST (i))); |
|
|
1319 | |
|
|
1320 | SvREFCNT_dec (grp->data); |
|
|
1321 | grp->data = (SV *)av; |
|
|
1322 | } |
|
|
1323 | |
|
|
1324 | void |
|
|
1325 | lock (aio_req grp) |
|
|
1326 | CODE: |
|
|
1327 | ++grp->length; |
|
|
1328 | |
|
|
1329 | void |
|
|
1330 | unlock (aio_req grp) |
|
|
1331 | CODE: |
|
|
1332 | aio_grp_dec (grp); |
|
|
1333 | |
|
|
1334 | void |
|
|
1335 | feeder_limit (aio_req grp, int limit) |
|
|
1336 | CODE: |
|
|
1337 | grp->fd2 = limit; |
|
|
1338 | aio_grp_feed (grp); |
|
|
1339 | |
|
|
1340 | void |
|
|
1341 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1342 | CODE: |
|
|
1343 | { |
|
|
1344 | SvREFCNT_dec (grp->fh2); |
|
|
1345 | grp->fh2 = newSVsv (callback); |
|
|
1346 | |
|
|
1347 | if (grp->fd2 <= 0) |
|
|
1348 | grp->fd2 = 2; |
|
|
1349 | |
|
|
1350 | aio_grp_feed (grp); |
|
|
1351 | } |
|
|
1352 | |