… | |
… | |
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; |
… | |
… | |
88 | unsigned char cancelled; |
88 | unsigned char cancelled; |
89 | } aio_cb; |
89 | } aio_cb; |
90 | |
90 | |
91 | typedef aio_cb *aio_req; |
91 | typedef aio_cb *aio_req; |
92 | typedef aio_cb *aio_req_ornot; |
92 | typedef aio_cb *aio_req_ornot; |
93 | typedef aio_cb *aio_group; |
|
|
94 | |
93 | |
95 | static int started, wanted; |
94 | static int started, wanted; |
96 | static volatile int nreqs; |
95 | static volatile int nreqs; |
97 | static int max_outstanding = 1<<30; |
96 | static int max_outstanding = 1<<30; |
98 | static int respipe [2]; |
97 | static int respipe [2]; |
… | |
… | |
107 | static void req_free (aio_req req); |
106 | static void req_free (aio_req req); |
108 | |
107 | |
109 | /* must be called at most once */ |
108 | /* must be called at most once */ |
110 | static SV *req_sv (aio_req req, const char *klass) |
109 | static SV *req_sv (aio_req req, const char *klass) |
111 | { |
110 | { |
|
|
111 | if (!req->self) |
|
|
112 | { |
112 | req->self = (SV *)newHV (); |
113 | req->self = (SV *)newHV (); |
113 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
114 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
|
|
115 | } |
114 | |
116 | |
115 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
117 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
116 | } |
118 | } |
117 | |
119 | |
118 | static aio_req SvAIO_REQ (SV *sv) |
120 | static aio_req SvAIO_REQ (SV *sv) |
… | |
… | |
121 | croak ("object of class " AIO_REQ_KLASS " expected"); |
123 | croak ("object of class " AIO_REQ_KLASS " expected"); |
122 | |
124 | |
123 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
125 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
124 | |
126 | |
125 | return mg ? (aio_req)mg->mg_ptr : 0; |
127 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
|
128 | } |
|
|
129 | |
|
|
130 | static void aio_grp_feed (aio_req grp) |
|
|
131 | { |
|
|
132 | while (grp->length < grp->fd2) |
|
|
133 | { |
|
|
134 | int old_len = grp->length; |
|
|
135 | |
|
|
136 | if (grp->fh2 && SvOK (grp->fh2)) |
|
|
137 | { |
|
|
138 | dSP; |
|
|
139 | |
|
|
140 | ENTER; |
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|
141 | SAVETMPS; |
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|
142 | PUSHMARK (SP); |
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|
143 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
|
|
144 | PUTBACK; |
|
|
145 | call_sv (grp->fh2, G_VOID | G_EVAL); |
|
|
146 | SPAGAIN; |
|
|
147 | FREETMPS; |
|
|
148 | LEAVE; |
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|
149 | } |
|
|
150 | |
|
|
151 | /* stop if no progress has been made */ |
|
|
152 | if (old_len == grp->length) |
|
|
153 | { |
|
|
154 | SvREFCNT_dec (grp->fh2); |
|
|
155 | grp->fh2 = 0; |
|
|
156 | break; |
|
|
157 | } |
|
|
158 | } |
126 | } |
159 | } |
127 | |
160 | |
128 | static void poll_wait () |
161 | static void poll_wait () |
129 | { |
162 | { |
130 | if (nreqs && !ress) |
163 | if (nreqs && !ress) |
… | |
… | |
146 | return; |
179 | return; |
147 | |
180 | |
148 | errno = req->errorno; |
181 | errno = req->errorno; |
149 | |
182 | |
150 | ENTER; |
183 | ENTER; |
|
|
184 | SAVETMPS; |
151 | PUSHMARK (SP); |
185 | PUSHMARK (SP); |
|
|
186 | EXTEND (SP, 1); |
152 | |
187 | |
153 | switch (req->type) |
188 | switch (req->type) |
154 | { |
189 | { |
155 | case REQ_READDIR: |
190 | case REQ_READDIR: |
156 | { |
191 | { |
… | |
… | |
171 | } |
206 | } |
172 | |
207 | |
173 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
208 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
174 | } |
209 | } |
175 | |
210 | |
176 | XPUSHs (rv); |
211 | PUSHs (rv); |
177 | } |
212 | } |
178 | break; |
213 | break; |
179 | |
214 | |
180 | case REQ_OPEN: |
215 | case REQ_OPEN: |
181 | { |
216 | { |
182 | /* convert fd to fh */ |
217 | /* convert fd to fh */ |
183 | SV *fh; |
218 | SV *fh; |
184 | |
219 | |
185 | XPUSHs (sv_2mortal (newSViv (req->result))); |
220 | PUSHs (sv_2mortal (newSViv (req->result))); |
186 | PUTBACK; |
221 | PUTBACK; |
187 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
222 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
188 | SPAGAIN; |
223 | SPAGAIN; |
189 | |
224 | |
190 | fh = SvREFCNT_inc (POPs); |
225 | fh = SvREFCNT_inc (POPs); |
… | |
… | |
192 | PUSHMARK (SP); |
227 | PUSHMARK (SP); |
193 | XPUSHs (sv_2mortal (fh)); |
228 | XPUSHs (sv_2mortal (fh)); |
194 | } |
229 | } |
195 | break; |
230 | break; |
196 | |
231 | |
|
|
232 | case REQ_GROUP: |
|
|
233 | req->fd = 2; /* mark group as finished */ |
|
|
234 | |
|
|
235 | if (req->data) |
|
|
236 | { |
|
|
237 | int i; |
|
|
238 | AV *av = (AV *)req->data; |
|
|
239 | |
|
|
240 | EXTEND (SP, AvFILL (av) + 1); |
|
|
241 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
242 | PUSHs (*av_fetch (av, i, 0)); |
|
|
243 | } |
|
|
244 | break; |
|
|
245 | |
197 | case REQ_SLEEP: |
246 | case REQ_SLEEP: |
198 | case REQ_GROUP: |
|
|
199 | break; |
247 | break; |
200 | |
248 | |
201 | default: |
249 | default: |
202 | XPUSHs (sv_2mortal (newSViv (req->result))); |
250 | PUSHs (sv_2mortal (newSViv (req->result))); |
203 | break; |
251 | break; |
204 | } |
252 | } |
205 | |
253 | |
206 | |
254 | |
207 | PUTBACK; |
255 | PUTBACK; |
… | |
… | |
212 | { |
260 | { |
213 | req_free (req); |
261 | req_free (req); |
214 | croak (0); |
262 | croak (0); |
215 | } |
263 | } |
216 | |
264 | |
|
|
265 | FREETMPS; |
217 | LEAVE; |
266 | LEAVE; |
218 | |
267 | |
219 | errno = errorno; |
268 | errno = errorno; |
220 | } |
269 | } |
221 | |
270 | |
… | |
… | |
224 | if (req->grp) |
273 | if (req->grp) |
225 | { |
274 | { |
226 | aio_req grp = req->grp; |
275 | aio_req grp = req->grp; |
227 | |
276 | |
228 | /* unlink request */ |
277 | /* unlink request */ |
229 | req->grp_next->grp_prev = req->grp_prev; |
278 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
230 | req->grp_prev->grp_next = req->grp_next; |
279 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
231 | |
280 | |
232 | if (grp->grp_next == grp) |
281 | if (grp->grp_first == req) |
|
|
282 | grp->grp_first = req->grp_next; |
|
|
283 | |
|
|
284 | --grp->length; |
|
|
285 | |
|
|
286 | /* call feeder, if applicable */ |
|
|
287 | aio_grp_feed (grp); |
|
|
288 | |
|
|
289 | /* finish, if done */ |
|
|
290 | if (!grp->length && grp->fd) |
233 | { |
291 | { |
234 | req_invoke (grp); |
292 | req_invoke (grp); |
235 | req_free (grp); |
293 | req_free (grp); |
236 | } |
294 | } |
237 | } |
295 | } |
… | |
… | |
240 | { |
298 | { |
241 | sv_unmagic (req->self, PERL_MAGIC_ext); |
299 | sv_unmagic (req->self, PERL_MAGIC_ext); |
242 | SvREFCNT_dec (req->self); |
300 | SvREFCNT_dec (req->self); |
243 | } |
301 | } |
244 | |
302 | |
245 | if (req->data) |
|
|
246 | SvREFCNT_dec (req->data); |
303 | SvREFCNT_dec (req->data); |
247 | |
|
|
248 | if (req->fh) |
|
|
249 | SvREFCNT_dec (req->fh); |
304 | SvREFCNT_dec (req->fh); |
250 | |
|
|
251 | if (req->fh2) |
|
|
252 | SvREFCNT_dec (req->fh2); |
305 | SvREFCNT_dec (req->fh2); |
253 | |
|
|
254 | if (req->statdata) |
|
|
255 | Safefree (req->statdata); |
|
|
256 | |
|
|
257 | if (req->callback) |
|
|
258 | SvREFCNT_dec (req->callback); |
306 | SvREFCNT_dec (req->callback); |
|
|
307 | Safefree (req->statdata); |
259 | |
308 | |
260 | if (req->type == REQ_READDIR && req->result >= 0) |
309 | if (req->type == REQ_READDIR && req->result >= 0) |
261 | free (req->data2ptr); |
310 | free (req->data2ptr); |
262 | |
311 | |
263 | Safefree (req); |
312 | Safefree (req); |
… | |
… | |
269 | |
318 | |
270 | if (req->type == REQ_GROUP) |
319 | if (req->type == REQ_GROUP) |
271 | { |
320 | { |
272 | aio_req sub; |
321 | aio_req sub; |
273 | |
322 | |
274 | for (sub = req->grp_next; sub != req; sub = sub->grp_next) |
323 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
275 | req_cancel (sub); |
324 | req_cancel (sub); |
276 | } |
325 | } |
277 | } |
326 | } |
278 | |
327 | |
279 | static int poll_cb () |
328 | static int poll_cb () |
… | |
… | |
310 | |
359 | |
311 | nreqs--; |
360 | nreqs--; |
312 | |
361 | |
313 | if (req->type == REQ_QUIT) |
362 | if (req->type == REQ_QUIT) |
314 | started--; |
363 | started--; |
315 | else if (req->type == REQ_GROUP && req->grp_next != req) |
364 | else if (req->type == REQ_GROUP && req->length) |
|
|
365 | { |
|
|
366 | req->fd = 1; /* mark request as delayed */ |
316 | continue; |
367 | continue; |
|
|
368 | } |
317 | else |
369 | else |
318 | { |
370 | { |
319 | if (req->type == REQ_READ) |
371 | if (req->type == REQ_READ) |
320 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
372 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
321 | |
373 | |
… | |
… | |
1142 | } |
1194 | } |
1143 | |
1195 | |
1144 | void |
1196 | void |
1145 | aio_group (callback=&PL_sv_undef) |
1197 | aio_group (callback=&PL_sv_undef) |
1146 | SV * callback |
1198 | SV * callback |
1147 | PROTOTYPE: ;& |
1199 | PROTOTYPE: ;$ |
1148 | PPCODE: |
1200 | PPCODE: |
1149 | { |
1201 | { |
1150 | dREQ; |
1202 | dREQ; |
1151 | req->type = REQ_GROUP; |
1203 | req->type = REQ_GROUP; |
1152 | req->grp_next = req; |
|
|
1153 | req->grp_prev = req; |
|
|
1154 | |
|
|
1155 | req_send (req); |
1204 | req_send (req); |
1156 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1205 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1157 | } |
1206 | } |
1158 | |
1207 | |
1159 | void |
1208 | void |
… | |
… | |
1205 | CODE: |
1254 | CODE: |
1206 | RETVAL = nreqs; |
1255 | RETVAL = nreqs; |
1207 | OUTPUT: |
1256 | OUTPUT: |
1208 | RETVAL |
1257 | RETVAL |
1209 | |
1258 | |
|
|
1259 | PROTOTYPES: DISABLE |
|
|
1260 | |
1210 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1261 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1211 | |
1262 | |
1212 | void |
1263 | void |
1213 | cancel (aio_req_ornot req) |
1264 | cancel (aio_req_ornot req) |
1214 | PROTOTYPE: |
1265 | PROTOTYPE: |
… | |
… | |
1217 | |
1268 | |
1218 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1269 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1219 | |
1270 | |
1220 | void |
1271 | void |
1221 | add (aio_req grp, ...) |
1272 | add (aio_req grp, ...) |
1222 | PROTOTYPE: $;@ |
|
|
1223 | PPCODE: |
1273 | PPCODE: |
1224 | { |
1274 | { |
1225 | int i; |
1275 | int i; |
|
|
1276 | |
|
|
1277 | if (grp->fd == 2) |
|
|
1278 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1226 | |
1279 | |
1227 | for (i = 1; i < items; ++i ) |
1280 | for (i = 1; i < items; ++i ) |
1228 | { |
1281 | { |
1229 | aio_req req = SvAIO_REQ (ST (i)); |
|
|
1230 | |
|
|
1231 | req->grp_prev = grp; |
|
|
1232 | req->grp_next = grp->grp_next; |
|
|
1233 | grp->grp_next->grp_prev = req; |
|
|
1234 | grp->grp_next = req; |
|
|
1235 | |
|
|
1236 | req->grp = grp; |
|
|
1237 | |
|
|
1238 | if (GIMME_V != G_VOID) |
1282 | if (GIMME_V != G_VOID) |
1239 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1283 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1284 | |
|
|
1285 | aio_req req = SvAIO_REQ (ST (i)); |
|
|
1286 | |
|
|
1287 | if (req) |
|
|
1288 | { |
|
|
1289 | ++grp->length; |
|
|
1290 | req->grp = grp; |
|
|
1291 | |
|
|
1292 | req->grp_prev = 0; |
|
|
1293 | req->grp_next = grp->grp_first; |
|
|
1294 | |
|
|
1295 | if (grp->grp_first) |
|
|
1296 | grp->grp_first->grp_prev = req; |
|
|
1297 | |
|
|
1298 | grp->grp_first = req; |
|
|
1299 | } |
1240 | } |
1300 | } |
1241 | } |
1301 | } |
1242 | |
1302 | |
|
|
1303 | void |
|
|
1304 | result (aio_req grp, ...) |
|
|
1305 | CODE: |
|
|
1306 | { |
|
|
1307 | int i; |
|
|
1308 | AV *av = newAV (); |
|
|
1309 | |
|
|
1310 | for (i = 1; i < items; ++i ) |
|
|
1311 | av_push (av, newSVsv (ST (i))); |
|
|
1312 | |
|
|
1313 | SvREFCNT_dec (grp->data); |
|
|
1314 | grp->data = (SV *)av; |
|
|
1315 | } |
|
|
1316 | |
|
|
1317 | void |
|
|
1318 | feeder_limit (aio_req grp, int limit) |
|
|
1319 | CODE: |
|
|
1320 | grp->fd2 = limit; |
|
|
1321 | aio_grp_feed (grp); |
|
|
1322 | |
|
|
1323 | void |
|
|
1324 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1325 | CODE: |
|
|
1326 | { |
|
|
1327 | SvREFCNT_dec (grp->fh2); |
|
|
1328 | grp->fh2 = newSVsv (callback); |
|
|
1329 | |
|
|
1330 | if (grp->fd2 <= 0) |
|
|
1331 | grp->fd2 = 2; |
|
|
1332 | |
|
|
1333 | aio_grp_feed (grp); |
|
|
1334 | } |
|
|
1335 | |