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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; |
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70 | |
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71 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
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70 | |
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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; |
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106 | static void req_free (aio_req req); |
106 | static void req_free (aio_req req); |
107 | |
107 | |
108 | /* must be called at most once */ |
108 | /* must be called at most once */ |
109 | static SV *req_sv (aio_req req, const char *klass) |
109 | static SV *req_sv (aio_req req, const char *klass) |
110 | { |
110 | { |
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111 | if (!req->self) |
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112 | { |
111 | req->self = (SV *)newHV (); |
113 | req->self = (SV *)newHV (); |
112 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
114 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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115 | } |
113 | |
116 | |
114 | 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))); |
115 | } |
118 | } |
116 | |
119 | |
117 | static aio_req SvAIO_REQ (SV *sv) |
120 | static aio_req SvAIO_REQ (SV *sv) |
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120 | croak ("object of class " AIO_REQ_KLASS " expected"); |
123 | croak ("object of class " AIO_REQ_KLASS " expected"); |
121 | |
124 | |
122 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
125 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
123 | |
126 | |
124 | return mg ? (aio_req)mg->mg_ptr : 0; |
127 | return mg ? (aio_req)mg->mg_ptr : 0; |
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128 | } |
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129 | |
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130 | static void aio_grp_feed (aio_req grp) |
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131 | { |
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132 | while (grp->length < grp->fd2) |
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133 | { |
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134 | int old_len = grp->length; |
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135 | |
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136 | if (grp->fh2 && SvOK (grp->fh2)) |
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137 | { |
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138 | dSP; |
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139 | |
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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)); |
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144 | PUTBACK; |
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145 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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146 | SPAGAIN; |
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147 | FREETMPS; |
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148 | LEAVE; |
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149 | } |
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150 | |
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151 | /* stop if no progress has been made */ |
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152 | if (old_len == grp->length) |
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153 | { |
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154 | SvREFCNT_dec (grp->fh2); |
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155 | grp->fh2 = 0; |
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156 | break; |
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157 | } |
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158 | } |
125 | } |
159 | } |
126 | |
160 | |
127 | static void poll_wait () |
161 | static void poll_wait () |
128 | { |
162 | { |
129 | if (nreqs && !ress) |
163 | if (nreqs && !ress) |
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145 | return; |
179 | return; |
146 | |
180 | |
147 | errno = req->errorno; |
181 | errno = req->errorno; |
148 | |
182 | |
149 | ENTER; |
183 | ENTER; |
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184 | SAVETMPS; |
150 | PUSHMARK (SP); |
185 | PUSHMARK (SP); |
151 | EXTEND (SP, 1); |
186 | EXTEND (SP, 1); |
152 | |
187 | |
153 | switch (req->type) |
188 | switch (req->type) |
154 | { |
189 | { |
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193 | XPUSHs (sv_2mortal (fh)); |
228 | XPUSHs (sv_2mortal (fh)); |
194 | } |
229 | } |
195 | break; |
230 | break; |
196 | |
231 | |
197 | case REQ_GROUP: |
232 | case REQ_GROUP: |
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233 | req->fd = 2; /* mark group as finished */ |
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234 | |
198 | if (req->data) |
235 | if (req->data) |
199 | { |
236 | { |
200 | int i; |
237 | int i; |
201 | AV *av = (AV *)req->data; |
238 | AV *av = (AV *)req->data; |
202 | |
239 | |
… | |
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223 | { |
260 | { |
224 | req_free (req); |
261 | req_free (req); |
225 | croak (0); |
262 | croak (0); |
226 | } |
263 | } |
227 | |
264 | |
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265 | FREETMPS; |
228 | LEAVE; |
266 | LEAVE; |
229 | |
267 | |
230 | errno = errorno; |
268 | errno = errorno; |
231 | } |
269 | } |
232 | |
270 | |
… | |
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235 | if (req->grp) |
273 | if (req->grp) |
236 | { |
274 | { |
237 | aio_req grp = req->grp; |
275 | aio_req grp = req->grp; |
238 | |
276 | |
239 | /* unlink request */ |
277 | /* unlink request */ |
240 | req->grp_next->grp_prev = req->grp_prev; |
278 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
241 | req->grp_prev->grp_next = req->grp_next; |
279 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
242 | |
280 | |
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281 | if (grp->grp_first == req) |
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282 | grp->grp_first = req->grp_next; |
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283 | |
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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); |
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288 | |
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289 | /* finish, if done */ |
243 | if (grp->grp_next == grp && grp->fd) |
290 | if (!grp->length && grp->fd) |
244 | { |
291 | { |
245 | req_invoke (grp); |
292 | req_invoke (grp); |
246 | req_free (grp); |
293 | req_free (grp); |
247 | } |
294 | } |
248 | } |
295 | } |
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251 | { |
298 | { |
252 | sv_unmagic (req->self, PERL_MAGIC_ext); |
299 | sv_unmagic (req->self, PERL_MAGIC_ext); |
253 | SvREFCNT_dec (req->self); |
300 | SvREFCNT_dec (req->self); |
254 | } |
301 | } |
255 | |
302 | |
256 | if (req->data) |
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257 | SvREFCNT_dec (req->data); |
303 | SvREFCNT_dec (req->data); |
258 | |
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259 | if (req->fh) |
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260 | SvREFCNT_dec (req->fh); |
304 | SvREFCNT_dec (req->fh); |
261 | |
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262 | if (req->fh2) |
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263 | SvREFCNT_dec (req->fh2); |
305 | SvREFCNT_dec (req->fh2); |
264 | |
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265 | if (req->statdata) |
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266 | Safefree (req->statdata); |
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267 | |
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268 | if (req->callback) |
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269 | SvREFCNT_dec (req->callback); |
306 | SvREFCNT_dec (req->callback); |
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307 | Safefree (req->statdata); |
270 | |
308 | |
271 | if (req->type == REQ_READDIR && req->result >= 0) |
309 | if (req->type == REQ_READDIR && req->result >= 0) |
272 | free (req->data2ptr); |
310 | free (req->data2ptr); |
273 | |
311 | |
274 | Safefree (req); |
312 | Safefree (req); |
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… | |
280 | |
318 | |
281 | if (req->type == REQ_GROUP) |
319 | if (req->type == REQ_GROUP) |
282 | { |
320 | { |
283 | aio_req sub; |
321 | aio_req sub; |
284 | |
322 | |
285 | for (sub = req->grp_next; sub != req; sub = sub->grp_next) |
323 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
286 | req_cancel (sub); |
324 | req_cancel (sub); |
287 | } |
325 | } |
288 | } |
326 | } |
289 | |
327 | |
290 | static int poll_cb () |
328 | static int poll_cb () |
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… | |
321 | |
359 | |
322 | nreqs--; |
360 | nreqs--; |
323 | |
361 | |
324 | if (req->type == REQ_QUIT) |
362 | if (req->type == REQ_QUIT) |
325 | started--; |
363 | started--; |
326 | else if (req->type == REQ_GROUP && req->grp_next != req) |
364 | else if (req->type == REQ_GROUP && req->length) |
327 | { |
365 | { |
328 | req->fd = 1; /* mark request as delayed */ |
366 | req->fd = 1; /* mark request as delayed */ |
329 | continue; |
367 | continue; |
330 | } |
368 | } |
331 | else |
369 | else |
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1161 | PROTOTYPE: ;$ |
1199 | PROTOTYPE: ;$ |
1162 | PPCODE: |
1200 | PPCODE: |
1163 | { |
1201 | { |
1164 | dREQ; |
1202 | dREQ; |
1165 | req->type = REQ_GROUP; |
1203 | req->type = REQ_GROUP; |
1166 | req->grp_next = req; |
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1167 | req->grp_prev = req; |
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1168 | |
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1169 | req_send (req); |
1204 | req_send (req); |
1170 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1205 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1171 | } |
1206 | } |
1172 | |
1207 | |
1173 | void |
1208 | void |
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1237 | add (aio_req grp, ...) |
1272 | add (aio_req grp, ...) |
1238 | PPCODE: |
1273 | PPCODE: |
1239 | { |
1274 | { |
1240 | int i; |
1275 | int i; |
1241 | |
1276 | |
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1277 | if (grp->fd == 2) |
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1278 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
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1279 | |
1242 | for (i = 1; i < items; ++i ) |
1280 | for (i = 1; i < items; ++i ) |
1243 | { |
1281 | { |
1244 | if (GIMME_V != G_VOID) |
1282 | if (GIMME_V != G_VOID) |
1245 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1283 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1246 | |
1284 | |
1247 | aio_req req = SvAIO_REQ (ST (i)); |
1285 | aio_req req = SvAIO_REQ (ST (i)); |
1248 | |
1286 | |
1249 | if (req) |
1287 | if (req) |
1250 | { |
1288 | { |
1251 | req->grp_prev = grp; |
1289 | ++grp->length; |
1252 | req->grp_next = grp->grp_next; |
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1253 | grp->grp_next->grp_prev = req; |
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1254 | grp->grp_next = req; |
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1255 | |
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1256 | req->grp = grp; |
1290 | req->grp = grp; |
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1291 | |
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1292 | req->grp_prev = 0; |
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1293 | req->grp_next = grp->grp_first; |
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1294 | |
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1295 | if (grp->grp_first) |
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1296 | grp->grp_first->grp_prev = req; |
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1297 | |
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1298 | grp->grp_first = req; |
1257 | } |
1299 | } |
1258 | } |
1300 | } |
1259 | } |
1301 | } |
1260 | |
1302 | |
1261 | void |
1303 | void |
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1263 | CODE: |
1305 | CODE: |
1264 | { |
1306 | { |
1265 | int i; |
1307 | int i; |
1266 | AV *av = newAV (); |
1308 | AV *av = newAV (); |
1267 | |
1309 | |
1268 | if (grp->data) |
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1269 | SvREFCNT_dec (grp->data); |
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1270 | |
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1271 | for (i = 1; i < items; ++i ) |
1310 | for (i = 1; i < items; ++i ) |
1272 | av_push (av, newSVsv (ST (i))); |
1311 | av_push (av, newSVsv (ST (i))); |
1273 | |
1312 | |
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1313 | SvREFCNT_dec (grp->data); |
1274 | grp->data = (SV *)av; |
1314 | grp->data = (SV *)av; |
1275 | } |
1315 | } |
1276 | |
1316 | |
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1317 | void |
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1318 | feeder_limit (aio_req grp, int limit) |
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1319 | CODE: |
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1320 | grp->fd2 = limit; |
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1321 | aio_grp_feed (grp); |
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1322 | |
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1323 | void |
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1324 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
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1325 | CODE: |
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1326 | { |
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1327 | SvREFCNT_dec (grp->fh2); |
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1328 | grp->fh2 = newSVsv (callback); |
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1329 | |
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1330 | if (grp->fd2 <= 0) |
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1331 | grp->fd2 = 2; |
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1332 | |
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1333 | aio_grp_feed (grp); |
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1334 | } |
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1335 | |