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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
1 | #if __linux |
4 | #if __linux |
2 | # define _GNU_SOURCE |
5 | # define _GNU_SOURCE |
3 | #endif |
6 | #endif |
4 | |
7 | |
5 | #define _REENTRANT 1 |
8 | #define _REENTRANT 1 |
… | |
… | |
56 | |
59 | |
57 | /* buffer size for various temporary buffers */ |
60 | /* buffer size for various temporary buffers */ |
58 | #define AIO_BUFSIZE 65536 |
61 | #define AIO_BUFSIZE 65536 |
59 | |
62 | |
60 | #define dBUF \ |
63 | #define dBUF \ |
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64 | char *aio_buf; \ |
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65 | LOCK (wrklock); \ |
61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
66 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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67 | UNLOCK (wrklock); \ |
62 | if (!aio_buf) \ |
68 | if (!aio_buf) \ |
63 | return -1; |
69 | return -1; |
64 | |
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65 | #define fBUF free (aio_buf) |
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66 | |
70 | |
67 | enum { |
71 | enum { |
68 | REQ_QUIT, |
72 | REQ_QUIT, |
69 | REQ_OPEN, REQ_CLOSE, |
73 | REQ_OPEN, REQ_CLOSE, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
74 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
73 | REQ_FSYNC, REQ_FDATASYNC, |
77 | REQ_FSYNC, REQ_FDATASYNC, |
74 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
78 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
75 | REQ_READDIR, |
79 | REQ_READDIR, |
76 | REQ_LINK, REQ_SYMLINK, |
80 | REQ_LINK, REQ_SYMLINK, |
77 | REQ_GROUP, REQ_NOP, |
81 | REQ_GROUP, REQ_NOP, |
78 | REQ_SLEEP, |
82 | REQ_BUSY, |
79 | }; |
83 | }; |
80 | |
84 | |
81 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
85 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
82 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
86 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
83 | |
87 | |
… | |
… | |
117 | PRI_MIN = -4, |
121 | PRI_MIN = -4, |
118 | PRI_MAX = 4, |
122 | PRI_MAX = 4, |
119 | |
123 | |
120 | DEFAULT_PRI = 0, |
124 | DEFAULT_PRI = 0, |
121 | PRI_BIAS = -PRI_MIN, |
125 | PRI_BIAS = -PRI_MIN, |
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126 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
122 | }; |
127 | }; |
123 | |
128 | |
124 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
129 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
125 | |
130 | |
126 | static int started, wanted; |
131 | static int started, wanted; |
… | |
… | |
132 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
137 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
133 | #else |
138 | #else |
134 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
139 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
135 | #endif |
140 | #endif |
136 | |
141 | |
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142 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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143 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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144 | |
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145 | /* worker threasd management */ |
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146 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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147 | |
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148 | typedef struct worker { |
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149 | /* locked by wrklock */ |
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150 | struct worker *prev, *next; |
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151 | |
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152 | pthread_t tid; |
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153 | |
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154 | /* locked by reslock, reqlock or wrklock */ |
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155 | aio_req req; /* currently processed request */ |
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156 | void *dbuf; |
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157 | DIR *dirp; |
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158 | } worker; |
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159 | |
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160 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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161 | |
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162 | static void worker_clear (worker *wrk) |
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163 | { |
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164 | if (wrk->dirp) |
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165 | { |
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166 | closedir (wrk->dirp); |
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167 | wrk->dirp = 0; |
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168 | } |
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169 | |
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170 | if (wrk->dbuf) |
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171 | { |
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172 | free (wrk->dbuf); |
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173 | wrk->dbuf = 0; |
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174 | } |
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175 | } |
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176 | |
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177 | static void worker_free (worker *wrk) |
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178 | { |
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179 | wrk->next->prev = wrk->prev; |
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180 | wrk->prev->next = wrk->next; |
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181 | |
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182 | free (wrk); |
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183 | } |
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184 | |
137 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
185 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
138 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
186 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
139 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
187 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
140 | |
188 | |
141 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
189 | /* |
142 | static volatile aio_req ress, rese; /* queue start, queue end */ |
190 | * a somewhat faster data structure might be nice, but |
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191 | * with 8 priorities this actually needs <20 insns |
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192 | * per shift, the most expensive operation. |
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193 | */ |
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194 | typedef struct { |
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195 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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196 | int size; |
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197 | } reqq; |
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198 | |
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199 | static reqq req_queue; |
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200 | static reqq res_queue; |
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201 | |
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202 | int reqq_push (reqq *q, aio_req req) |
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203 | { |
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204 | int pri = req->pri; |
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205 | req->next = 0; |
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206 | |
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207 | if (q->qe[pri]) |
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208 | { |
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209 | q->qe[pri]->next = req; |
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210 | q->qe[pri] = req; |
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211 | } |
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212 | else |
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213 | q->qe[pri] = q->qs[pri] = req; |
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214 | |
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215 | return q->size++; |
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216 | } |
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217 | |
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218 | aio_req reqq_shift (reqq *q) |
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219 | { |
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220 | int pri; |
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221 | |
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222 | if (!q->size) |
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223 | return 0; |
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224 | |
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225 | --q->size; |
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226 | |
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227 | for (pri = NUM_PRI; pri--; ) |
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228 | { |
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229 | aio_req req = q->qs[pri]; |
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230 | |
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231 | if (req) |
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232 | { |
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233 | if (!(q->qs[pri] = req->next)) |
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234 | q->qe[pri] = 0; |
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235 | |
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236 | return req; |
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237 | } |
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238 | } |
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239 | |
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240 | abort (); |
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241 | } |
143 | |
242 | |
144 | static void req_invoke (aio_req req); |
243 | static void req_invoke (aio_req req); |
145 | static void req_free (aio_req req); |
244 | static void req_free (aio_req req); |
146 | |
245 | |
147 | /* must be called at most once */ |
246 | /* must be called at most once */ |
… | |
… | |
181 | ENTER; |
280 | ENTER; |
182 | SAVETMPS; |
281 | SAVETMPS; |
183 | PUSHMARK (SP); |
282 | PUSHMARK (SP); |
184 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
283 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
185 | PUTBACK; |
284 | PUTBACK; |
186 | call_sv (grp->fh2, G_VOID | G_EVAL); |
285 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
187 | SPAGAIN; |
286 | SPAGAIN; |
188 | FREETMPS; |
287 | FREETMPS; |
189 | LEAVE; |
288 | LEAVE; |
190 | } |
289 | } |
191 | |
290 | |
… | |
… | |
218 | { |
317 | { |
219 | fd_set rfd; |
318 | fd_set rfd; |
220 | |
319 | |
221 | while (nreqs) |
320 | while (nreqs) |
222 | { |
321 | { |
223 | aio_req req; |
322 | int size; |
224 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
323 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
225 | pthread_mutex_lock (&reslock); |
324 | LOCK (reslock); |
226 | #endif |
325 | #endif |
227 | req = ress; |
326 | size = res_queue.size; |
228 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
327 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
229 | pthread_mutex_unlock (&reslock); |
328 | UNLOCK (reslock); |
230 | #endif |
329 | #endif |
231 | |
330 | |
232 | if (req) |
331 | if (size) |
233 | return; |
332 | return; |
234 | |
333 | |
235 | FD_ZERO(&rfd); |
334 | FD_ZERO(&rfd); |
236 | FD_SET(respipe [0], &rfd); |
335 | FD_SET(respipe [0], &rfd); |
237 | |
336 | |
… | |
… | |
240 | } |
339 | } |
241 | |
340 | |
242 | static void req_invoke (aio_req req) |
341 | static void req_invoke (aio_req req) |
243 | { |
342 | { |
244 | dSP; |
343 | dSP; |
245 | int errorno = errno; |
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246 | |
344 | |
247 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
345 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
248 | return; |
346 | { |
249 | |
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250 | errno = req->errorno; |
347 | errno = req->errorno; |
251 | |
348 | |
252 | ENTER; |
349 | ENTER; |
253 | SAVETMPS; |
350 | SAVETMPS; |
254 | PUSHMARK (SP); |
351 | PUSHMARK (SP); |
255 | EXTEND (SP, 1); |
352 | EXTEND (SP, 1); |
256 | |
353 | |
257 | switch (req->type) |
354 | switch (req->type) |
258 | { |
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259 | case REQ_READDIR: |
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260 | { |
355 | { |
261 | SV *rv = &PL_sv_undef; |
356 | case REQ_READDIR: |
262 | |
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263 | if (req->result >= 0) |
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264 | { |
357 | { |
265 | char *buf = req->data2ptr; |
358 | SV *rv = &PL_sv_undef; |
266 | AV *av = newAV (); |
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267 | |
359 | |
268 | while (req->result) |
360 | if (req->result >= 0) |
269 | { |
361 | { |
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362 | int i; |
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363 | char *buf = req->data2ptr; |
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364 | AV *av = newAV (); |
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365 | |
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366 | av_extend (av, req->result - 1); |
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367 | |
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368 | for (i = 0; i < req->result; ++i) |
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369 | { |
270 | SV *sv = newSVpv (buf, 0); |
370 | SV *sv = newSVpv (buf, 0); |
271 | |
371 | |
272 | av_push (av, sv); |
372 | av_store (av, i, sv); |
273 | buf += SvCUR (sv) + 1; |
373 | buf += SvCUR (sv) + 1; |
274 | req->result--; |
374 | } |
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375 | |
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376 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
275 | } |
377 | } |
276 | |
378 | |
277 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
379 | PUSHs (rv); |
278 | } |
380 | } |
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381 | break; |
279 | |
382 | |
280 | PUSHs (rv); |
383 | case REQ_OPEN: |
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384 | { |
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385 | /* convert fd to fh */ |
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386 | SV *fh; |
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387 | |
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388 | PUSHs (sv_2mortal (newSViv (req->result))); |
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389 | PUTBACK; |
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390 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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391 | SPAGAIN; |
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392 | |
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393 | fh = SvREFCNT_inc (POPs); |
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394 | |
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395 | PUSHMARK (SP); |
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396 | XPUSHs (sv_2mortal (fh)); |
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397 | } |
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398 | break; |
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399 | |
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400 | case REQ_GROUP: |
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401 | req->fd = 2; /* mark group as finished */ |
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402 | |
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403 | if (req->data) |
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404 | { |
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405 | int i; |
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406 | AV *av = (AV *)req->data; |
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407 | |
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408 | EXTEND (SP, AvFILL (av) + 1); |
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409 | for (i = 0; i <= AvFILL (av); ++i) |
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410 | PUSHs (*av_fetch (av, i, 0)); |
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411 | } |
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412 | break; |
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413 | |
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414 | case REQ_NOP: |
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415 | case REQ_BUSY: |
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416 | break; |
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417 | |
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418 | default: |
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419 | PUSHs (sv_2mortal (newSViv (req->result))); |
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420 | break; |
281 | } |
421 | } |
282 | break; |
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283 | |
422 | |
284 | case REQ_OPEN: |
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285 | { |
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286 | /* convert fd to fh */ |
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287 | SV *fh; |
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288 | |
423 | |
289 | PUSHs (sv_2mortal (newSViv (req->result))); |
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290 | PUTBACK; |
424 | PUTBACK; |
291 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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292 | SPAGAIN; |
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293 | |
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294 | fh = SvREFCNT_inc (POPs); |
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295 | |
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296 | PUSHMARK (SP); |
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297 | XPUSHs (sv_2mortal (fh)); |
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298 | } |
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299 | break; |
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300 | |
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301 | case REQ_GROUP: |
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302 | req->fd = 2; /* mark group as finished */ |
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303 | |
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304 | if (req->data) |
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305 | { |
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306 | int i; |
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307 | AV *av = (AV *)req->data; |
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308 | |
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309 | EXTEND (SP, AvFILL (av) + 1); |
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310 | for (i = 0; i <= AvFILL (av); ++i) |
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311 | PUSHs (*av_fetch (av, i, 0)); |
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312 | } |
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313 | break; |
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314 | |
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315 | case REQ_NOP: |
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316 | case REQ_SLEEP: |
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317 | break; |
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318 | |
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319 | default: |
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320 | PUSHs (sv_2mortal (newSViv (req->result))); |
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321 | break; |
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322 | } |
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323 | |
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324 | |
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325 | PUTBACK; |
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326 | call_sv (req->callback, G_VOID | G_EVAL); |
425 | call_sv (req->callback, G_VOID | G_EVAL); |
327 | SPAGAIN; |
426 | SPAGAIN; |
328 | |
427 | |
329 | FREETMPS; |
428 | FREETMPS; |
330 | LEAVE; |
429 | LEAVE; |
331 | |
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332 | errno = errorno; |
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333 | |
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334 | if (SvTRUE (ERRSV)) |
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335 | { |
430 | } |
336 | req_free (req); |
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337 | croak (0); |
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338 | } |
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339 | } |
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340 | |
431 | |
341 | static void req_free (aio_req req) |
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342 | { |
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343 | if (req->grp) |
432 | if (req->grp) |
344 | { |
433 | { |
345 | aio_req grp = req->grp; |
434 | aio_req grp = req->grp; |
346 | |
435 | |
347 | /* unlink request */ |
436 | /* unlink request */ |
… | |
… | |
352 | grp->grp_first = req->grp_next; |
441 | grp->grp_first = req->grp_next; |
353 | |
442 | |
354 | aio_grp_dec (grp); |
443 | aio_grp_dec (grp); |
355 | } |
444 | } |
356 | |
445 | |
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446 | if (SvTRUE (ERRSV)) |
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447 | { |
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448 | req_free (req); |
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449 | croak (0); |
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450 | } |
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451 | } |
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452 | |
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453 | static void req_free (aio_req req) |
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454 | { |
357 | if (req->self) |
455 | if (req->self) |
358 | { |
456 | { |
359 | sv_unmagic (req->self, PERL_MAGIC_ext); |
457 | sv_unmagic (req->self, PERL_MAGIC_ext); |
360 | SvREFCNT_dec (req->self); |
458 | SvREFCNT_dec (req->self); |
361 | } |
459 | } |
… | |
… | |
364 | SvREFCNT_dec (req->fh); |
462 | SvREFCNT_dec (req->fh); |
365 | SvREFCNT_dec (req->fh2); |
463 | SvREFCNT_dec (req->fh2); |
366 | SvREFCNT_dec (req->callback); |
464 | SvREFCNT_dec (req->callback); |
367 | Safefree (req->statdata); |
465 | Safefree (req->statdata); |
368 | |
466 | |
369 | if (req->type == REQ_READDIR && req->result >= 0) |
467 | if (req->type == REQ_READDIR) |
370 | free (req->data2ptr); |
468 | free (req->data2ptr); |
371 | |
469 | |
372 | Safefree (req); |
470 | Safefree (req); |
373 | } |
471 | } |
374 | |
472 | |
… | |
… | |
392 | int do_croak = 0; |
490 | int do_croak = 0; |
393 | aio_req req; |
491 | aio_req req; |
394 | |
492 | |
395 | for (;;) |
493 | for (;;) |
396 | { |
494 | { |
397 | pthread_mutex_lock (&reslock); |
495 | LOCK (reslock); |
398 | req = ress; |
496 | req = reqq_shift (&res_queue); |
399 | |
497 | |
400 | if (req) |
498 | if (req) |
401 | { |
499 | { |
402 | ress = req->next; |
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403 | |
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404 | if (!ress) |
500 | if (!res_queue.size) |
405 | { |
501 | { |
406 | /* read any signals sent by the worker threads */ |
502 | /* read any signals sent by the worker threads */ |
407 | char buf [32]; |
503 | char buf [32]; |
408 | while (read (respipe [0], buf, 32) == 32) |
504 | while (read (respipe [0], buf, 32) == 32) |
409 | ; |
505 | ; |
410 | |
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411 | rese = 0; |
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412 | } |
506 | } |
413 | } |
507 | } |
414 | |
508 | |
415 | pthread_mutex_unlock (&reslock); |
509 | UNLOCK (reslock); |
416 | |
510 | |
417 | if (!req) |
511 | if (!req) |
418 | break; |
512 | break; |
419 | |
513 | |
420 | --nreqs; |
514 | --nreqs; |
… | |
… | |
454 | |
548 | |
455 | static void *aio_proc(void *arg); |
549 | static void *aio_proc(void *arg); |
456 | |
550 | |
457 | static void start_thread (void) |
551 | static void start_thread (void) |
458 | { |
552 | { |
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553 | worker *wrk = calloc (1, sizeof (worker)); |
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554 | |
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555 | if (!wrk) |
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556 | croak ("unable to allocate worker thread data"); |
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557 | |
459 | sigset_t fullsigset, oldsigset; |
558 | sigset_t fullsigset, oldsigset; |
460 | pthread_t tid; |
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461 | pthread_attr_t attr; |
559 | pthread_attr_t attr; |
462 | |
560 | |
463 | pthread_attr_init (&attr); |
561 | pthread_attr_init (&attr); |
464 | pthread_attr_setstacksize (&attr, STACKSIZE); |
562 | pthread_attr_setstacksize (&attr, STACKSIZE); |
465 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
563 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
466 | |
564 | |
467 | sigfillset (&fullsigset); |
565 | sigfillset (&fullsigset); |
|
|
566 | |
|
|
567 | LOCK (wrklock); |
468 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
568 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
469 | |
569 | |
470 | 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; |
471 | started++; |
576 | started++; |
|
|
577 | } |
|
|
578 | else |
|
|
579 | free (wrk); |
472 | |
580 | |
473 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
581 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
582 | UNLOCK (wrklock); |
474 | } |
583 | } |
475 | |
584 | |
476 | static void req_send (aio_req req) |
585 | static void req_send (aio_req req) |
477 | { |
586 | { |
478 | while (started < wanted && nreqs >= started) |
587 | while (started < wanted && nreqs >= started) |
479 | start_thread (); |
588 | start_thread (); |
480 | |
589 | |
481 | ++nreqs; |
590 | ++nreqs; |
482 | |
591 | |
483 | pthread_mutex_lock (&reqlock); |
592 | LOCK (reqlock); |
484 | |
593 | reqq_push (&req_queue, req); |
485 | req->next = 0; |
|
|
486 | |
|
|
487 | if (reqe) |
|
|
488 | { |
|
|
489 | reqe->next = req; |
|
|
490 | reqe = req; |
|
|
491 | } |
|
|
492 | else |
|
|
493 | reqe = reqs = req; |
|
|
494 | |
|
|
495 | pthread_cond_signal (&reqwait); |
594 | pthread_cond_signal (&reqwait); |
496 | pthread_mutex_unlock (&reqlock); |
595 | UNLOCK (reqlock); |
497 | |
596 | |
498 | if (nreqs > max_outstanding) |
597 | if (nreqs > max_outstanding) |
499 | for (;;) |
598 | for (;;) |
500 | { |
599 | { |
501 | poll_cb (); |
600 | poll_cb (); |
… | |
… | |
508 | } |
607 | } |
509 | |
608 | |
510 | static void end_thread (void) |
609 | static void end_thread (void) |
511 | { |
610 | { |
512 | aio_req req; |
611 | aio_req req; |
|
|
612 | |
513 | Newz (0, req, 1, aio_cb); |
613 | Newz (0, req, 1, aio_cb); |
|
|
614 | |
514 | req->type = REQ_QUIT; |
615 | req->type = REQ_QUIT; |
|
|
616 | req->pri = PRI_MAX + PRI_BIAS; |
515 | |
617 | |
516 | req_send (req); |
618 | req_send (req); |
517 | } |
619 | } |
518 | |
620 | |
519 | static void min_parallel (int nthreads) |
621 | static void min_parallel (int nthreads) |
… | |
… | |
571 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
673 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
572 | { |
674 | { |
573 | ssize_t res; |
675 | ssize_t res; |
574 | off_t ooffset; |
676 | off_t ooffset; |
575 | |
677 | |
576 | pthread_mutex_lock (&preadwritelock); |
678 | LOCK (preadwritelock); |
577 | ooffset = lseek (fd, 0, SEEK_CUR); |
679 | ooffset = lseek (fd, 0, SEEK_CUR); |
578 | lseek (fd, offset, SEEK_SET); |
680 | lseek (fd, offset, SEEK_SET); |
579 | res = read (fd, buf, count); |
681 | res = read (fd, buf, count); |
580 | lseek (fd, ooffset, SEEK_SET); |
682 | lseek (fd, ooffset, SEEK_SET); |
581 | pthread_mutex_unlock (&preadwritelock); |
683 | UNLOCK (preadwritelock); |
582 | |
684 | |
583 | return res; |
685 | return res; |
584 | } |
686 | } |
585 | |
687 | |
586 | static ssize_t 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) |
587 | { |
689 | { |
588 | ssize_t res; |
690 | ssize_t res; |
589 | off_t ooffset; |
691 | off_t ooffset; |
590 | |
692 | |
591 | pthread_mutex_lock (&preadwritelock); |
693 | LOCK (preadwritelock); |
592 | ooffset = lseek (fd, 0, SEEK_CUR); |
694 | ooffset = lseek (fd, 0, SEEK_CUR); |
593 | lseek (fd, offset, SEEK_SET); |
695 | lseek (fd, offset, SEEK_SET); |
594 | res = write (fd, buf, count); |
696 | res = write (fd, buf, count); |
595 | lseek (fd, offset, SEEK_SET); |
697 | lseek (fd, offset, SEEK_SET); |
596 | pthread_mutex_unlock (&preadwritelock); |
698 | UNLOCK (preadwritelock); |
597 | |
699 | |
598 | return res; |
700 | return res; |
599 | } |
701 | } |
600 | #endif |
702 | #endif |
601 | |
703 | |
… | |
… | |
617 | pread (fd, aio_buf, len, offset); |
719 | pread (fd, aio_buf, len, offset); |
618 | offset += len; |
720 | offset += len; |
619 | count -= len; |
721 | count -= len; |
620 | } |
722 | } |
621 | |
723 | |
622 | fBUF; |
|
|
623 | |
|
|
624 | errno = 0; |
724 | errno = 0; |
625 | } |
725 | } |
626 | #endif |
726 | #endif |
627 | |
727 | |
628 | #if !HAVE_READDIR_R |
728 | #if !HAVE_READDIR_R |
… | |
… | |
633 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
733 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
634 | { |
734 | { |
635 | struct dirent *e; |
735 | struct dirent *e; |
636 | int errorno; |
736 | int errorno; |
637 | |
737 | |
638 | pthread_mutex_lock (&readdirlock); |
738 | LOCK (readdirlock); |
639 | |
739 | |
640 | e = readdir (dirp); |
740 | e = readdir (dirp); |
641 | errorno = errno; |
741 | errorno = errno; |
642 | |
742 | |
643 | if (e) |
743 | if (e) |
… | |
… | |
646 | strcpy (ent->d_name, e->d_name); |
746 | strcpy (ent->d_name, e->d_name); |
647 | } |
747 | } |
648 | else |
748 | else |
649 | *res = 0; |
749 | *res = 0; |
650 | |
750 | |
651 | pthread_mutex_unlock (&readdirlock); |
751 | UNLOCK (readdirlock); |
652 | |
752 | |
653 | errno = errorno; |
753 | errno = errorno; |
654 | return e ? 0 : -1; |
754 | return e ? 0 : -1; |
655 | } |
755 | } |
656 | #endif |
756 | #endif |
657 | |
757 | |
658 | /* sendfile always needs emulation */ |
758 | /* sendfile always needs emulation */ |
659 | static ssize_t 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) |
660 | { |
760 | { |
661 | ssize_t res; |
761 | ssize_t res; |
662 | |
762 | |
663 | if (!count) |
763 | if (!count) |
664 | return 0; |
764 | return 0; |
… | |
… | |
741 | |
841 | |
742 | offset += cnt; |
842 | offset += cnt; |
743 | res += cnt; |
843 | res += cnt; |
744 | count -= cnt; |
844 | count -= cnt; |
745 | } |
845 | } |
746 | |
|
|
747 | fBUF; |
|
|
748 | } |
846 | } |
749 | |
847 | |
750 | return res; |
848 | return res; |
751 | } |
849 | } |
752 | |
850 | |
753 | /* read a full directory */ |
851 | /* read a full directory */ |
754 | static int scandir_ (const char *path, void **namesp) |
852 | static void scandir_ (aio_req req, worker *self) |
755 | { |
853 | { |
756 | DIR *dirp; |
854 | DIR *dirp; |
757 | union |
855 | union |
758 | { |
856 | { |
759 | struct dirent d; |
857 | struct dirent d; |
… | |
… | |
764 | int memlen = 4096; |
862 | int memlen = 4096; |
765 | int memofs = 0; |
863 | int memofs = 0; |
766 | int res = 0; |
864 | int res = 0; |
767 | int errorno; |
865 | int errorno; |
768 | |
866 | |
769 | dirp = opendir (path); |
867 | LOCK (wrklock); |
770 | if (!dirp) |
868 | self->dirp = dirp = opendir (req->dataptr); |
771 | return -1; |
|
|
772 | |
|
|
773 | u = malloc (sizeof (*u)); |
869 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
870 | UNLOCK (wrklock); |
|
|
871 | |
774 | names = malloc (memlen); |
872 | req->data2ptr = names = malloc (memlen); |
775 | |
873 | |
776 | if (u && names) |
874 | if (dirp && u && names) |
777 | for (;;) |
875 | for (;;) |
778 | { |
876 | { |
779 | errno = 0; |
877 | errno = 0; |
780 | readdir_r (dirp, &u->d, &entp); |
878 | readdir_r (dirp, &u->d, &entp); |
781 | |
879 | |
… | |
… | |
791 | res++; |
889 | res++; |
792 | |
890 | |
793 | while (memofs + len > memlen) |
891 | while (memofs + len > memlen) |
794 | { |
892 | { |
795 | memlen *= 2; |
893 | memlen *= 2; |
|
|
894 | LOCK (wrklock); |
796 | names = realloc (names, memlen); |
895 | req->data2ptr = names = realloc (names, memlen); |
|
|
896 | UNLOCK (wrklock); |
|
|
897 | |
797 | if (!names) |
898 | if (!names) |
798 | break; |
899 | break; |
799 | } |
900 | } |
800 | |
901 | |
801 | memcpy (names + memofs, name, len); |
902 | memcpy (names + memofs, name, len); |
802 | memofs += len; |
903 | memofs += len; |
803 | } |
904 | } |
804 | } |
905 | } |
805 | |
906 | |
806 | errorno = errno; |
|
|
807 | free (u); |
|
|
808 | closedir (dirp); |
|
|
809 | |
|
|
810 | if (errorno) |
907 | if (errno) |
811 | { |
|
|
812 | free (names); |
|
|
813 | errno = errorno; |
|
|
814 | res = -1; |
908 | res = -1; |
815 | } |
909 | |
816 | |
910 | req->result = res; |
817 | *namesp = (void *)names; |
|
|
818 | return res; |
|
|
819 | } |
911 | } |
820 | |
912 | |
821 | /*****************************************************************************/ |
913 | /*****************************************************************************/ |
822 | |
914 | |
823 | static void *aio_proc (void *thr_arg) |
915 | static void *aio_proc (void *thr_arg) |
824 | { |
916 | { |
825 | aio_req req; |
917 | aio_req req; |
826 | int type; |
918 | int type; |
|
|
919 | worker *self = (worker *)thr_arg; |
827 | |
920 | |
828 | do |
921 | do |
829 | { |
922 | { |
830 | pthread_mutex_lock (&reqlock); |
923 | LOCK (reqlock); |
831 | |
924 | |
832 | for (;;) |
925 | for (;;) |
833 | { |
926 | { |
834 | req = reqs; |
927 | self->req = req = reqq_shift (&req_queue); |
835 | |
|
|
836 | if (reqs) |
|
|
837 | { |
|
|
838 | reqs = reqs->next; |
|
|
839 | if (!reqs) reqe = 0; |
|
|
840 | } |
|
|
841 | |
928 | |
842 | if (req) |
929 | if (req) |
843 | break; |
930 | break; |
844 | |
931 | |
845 | pthread_cond_wait (&reqwait, &reqlock); |
932 | pthread_cond_wait (&reqwait, &reqlock); |
846 | } |
933 | } |
847 | |
934 | |
848 | pthread_mutex_unlock (&reqlock); |
935 | UNLOCK (reqlock); |
849 | |
936 | |
850 | errno = 0; /* strictly unnecessary */ |
937 | errno = 0; /* strictly unnecessary */ |
851 | type = req->type; /* remember type for QUIT check */ |
938 | type = req->type; /* remember type for QUIT check */ |
852 | |
939 | |
853 | if (!(req->flags & FLAG_CANCELLED)) |
940 | if (!(req->flags & FLAG_CANCELLED)) |
… | |
… | |
855 | { |
942 | { |
856 | 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; |
857 | 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; |
858 | |
945 | |
859 | 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; |
860 | 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; |
861 | |
948 | |
862 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
949 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
863 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
950 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
864 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
951 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
865 | |
952 | |
… | |
… | |
871 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
958 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
872 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
959 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
873 | |
960 | |
874 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
961 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
875 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
962 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
876 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
963 | case REQ_READDIR: scandir_ (req, self); break; |
877 | |
964 | |
878 | case REQ_SLEEP: |
965 | case REQ_BUSY: |
879 | { |
966 | { |
880 | struct timeval tv; |
967 | struct timeval tv; |
881 | |
968 | |
882 | tv.tv_sec = req->fd; |
969 | tv.tv_sec = req->fd; |
883 | tv.tv_usec = req->fd2; |
970 | tv.tv_usec = req->fd2; |
… | |
… | |
895 | break; |
982 | break; |
896 | } |
983 | } |
897 | |
984 | |
898 | req->errorno = errno; |
985 | req->errorno = errno; |
899 | |
986 | |
900 | pthread_mutex_lock (&reslock); |
987 | LOCK (reslock); |
901 | |
988 | |
902 | req->next = 0; |
989 | if (!reqq_push (&res_queue, req)) |
903 | |
|
|
904 | if (rese) |
|
|
905 | { |
|
|
906 | rese->next = req; |
|
|
907 | rese = req; |
|
|
908 | } |
|
|
909 | else |
|
|
910 | { |
|
|
911 | rese = ress = req; |
|
|
912 | |
|
|
913 | /* write a dummy byte to the pipe so fh becomes ready */ |
990 | /* write a dummy byte to the pipe so fh becomes ready */ |
914 | write (respipe [1], &respipe, 1); |
991 | write (respipe [1], &respipe, 1); |
915 | } |
|
|
916 | |
992 | |
917 | pthread_mutex_unlock (&reslock); |
993 | self->req = 0; |
|
|
994 | worker_clear (self); |
|
|
995 | |
|
|
996 | UNLOCK (reslock); |
918 | } |
997 | } |
919 | while (type != REQ_QUIT); |
998 | while (type != REQ_QUIT); |
920 | |
999 | |
|
|
1000 | LOCK (wrklock); |
|
|
1001 | worker_free (self); |
|
|
1002 | UNLOCK (wrklock); |
|
|
1003 | |
921 | return 0; |
1004 | return 0; |
922 | } |
1005 | } |
923 | |
1006 | |
924 | /*****************************************************************************/ |
1007 | /*****************************************************************************/ |
925 | |
1008 | |
926 | static void atfork_prepare (void) |
1009 | static void atfork_prepare (void) |
927 | { |
1010 | { |
928 | pthread_mutex_lock (&reqlock); |
1011 | LOCK (wrklock); |
929 | pthread_mutex_lock (&reslock); |
1012 | LOCK (reqlock); |
|
|
1013 | LOCK (reslock); |
930 | #if !HAVE_PREADWRITE |
1014 | #if !HAVE_PREADWRITE |
931 | pthread_mutex_lock (&preadwritelock); |
1015 | LOCK (preadwritelock); |
932 | #endif |
1016 | #endif |
933 | #if !HAVE_READDIR_R |
1017 | #if !HAVE_READDIR_R |
934 | pthread_mutex_lock (&readdirlock); |
1018 | LOCK (readdirlock); |
935 | #endif |
1019 | #endif |
936 | } |
1020 | } |
937 | |
1021 | |
938 | static void atfork_parent (void) |
1022 | static void atfork_parent (void) |
939 | { |
1023 | { |
940 | #if !HAVE_READDIR_R |
1024 | #if !HAVE_READDIR_R |
941 | pthread_mutex_unlock (&readdirlock); |
1025 | UNLOCK (readdirlock); |
942 | #endif |
1026 | #endif |
943 | #if !HAVE_PREADWRITE |
1027 | #if !HAVE_PREADWRITE |
944 | pthread_mutex_unlock (&preadwritelock); |
1028 | UNLOCK (preadwritelock); |
945 | #endif |
1029 | #endif |
946 | pthread_mutex_unlock (&reslock); |
1030 | UNLOCK (reslock); |
947 | pthread_mutex_unlock (&reqlock); |
1031 | UNLOCK (reqlock); |
|
|
1032 | UNLOCK (wrklock); |
948 | } |
1033 | } |
949 | |
1034 | |
950 | static void atfork_child (void) |
1035 | static void atfork_child (void) |
951 | { |
1036 | { |
952 | aio_req prv; |
1037 | aio_req prv; |
953 | |
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 | |
954 | started = 0; |
1056 | started = 0; |
955 | |
1057 | nreqs = 0; |
956 | while (reqs) |
|
|
957 | { |
|
|
958 | prv = reqs; |
|
|
959 | reqs = prv->next; |
|
|
960 | req_free (prv); |
|
|
961 | } |
|
|
962 | |
|
|
963 | reqs = reqe = 0; |
|
|
964 | |
|
|
965 | while (ress) |
|
|
966 | { |
|
|
967 | prv = ress; |
|
|
968 | ress = prv->next; |
|
|
969 | req_free (prv); |
|
|
970 | } |
|
|
971 | |
|
|
972 | ress = rese = 0; |
|
|
973 | |
1058 | |
974 | close (respipe [0]); |
1059 | close (respipe [0]); |
975 | close (respipe [1]); |
1060 | close (respipe [1]); |
976 | create_pipe (); |
1061 | create_pipe (); |
977 | |
1062 | |
… | |
… | |
1253 | |
1338 | |
1254 | REQ_SEND; |
1339 | REQ_SEND; |
1255 | } |
1340 | } |
1256 | |
1341 | |
1257 | void |
1342 | void |
1258 | aio_sleep (delay,callback=&PL_sv_undef) |
1343 | aio_busy (delay,callback=&PL_sv_undef) |
1259 | double delay |
1344 | double delay |
1260 | SV * callback |
1345 | SV * callback |
1261 | PPCODE: |
1346 | PPCODE: |
1262 | { |
1347 | { |
1263 | dREQ; |
1348 | dREQ; |
1264 | |
1349 | |
1265 | req->type = REQ_SLEEP; |
1350 | req->type = REQ_BUSY; |
1266 | req->fd = delay < 0. ? 0 : delay; |
1351 | req->fd = delay < 0. ? 0 : delay; |
1267 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1352 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1268 | |
1353 | |
1269 | REQ_SEND; |
1354 | REQ_SEND; |
1270 | } |
1355 | } |
… | |
… | |
1293 | req->type = REQ_NOP; |
1378 | req->type = REQ_NOP; |
1294 | |
1379 | |
1295 | REQ_SEND; |
1380 | REQ_SEND; |
1296 | } |
1381 | } |
1297 | |
1382 | |
1298 | #if 0 |
|
|
1299 | |
|
|
1300 | void |
1383 | void |
1301 | aio_pri (int pri = DEFAULT_PRI) |
1384 | aioreq_pri (int pri = DEFAULT_PRI) |
1302 | CODE: |
1385 | CODE: |
1303 | if (pri < PRI_MIN) pri = PRI_MIN; |
1386 | if (pri < PRI_MIN) pri = PRI_MIN; |
1304 | if (pri > PRI_MAX) pri = PRI_MAX; |
1387 | if (pri > PRI_MAX) pri = PRI_MAX; |
1305 | next_pri = pri + PRI_BIAS; |
1388 | next_pri = pri + PRI_BIAS; |
1306 | |
1389 | |
1307 | #endif |
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; |
1308 | |
1397 | |
1309 | void |
1398 | void |
1310 | flush () |
1399 | flush () |
1311 | PROTOTYPE: |
1400 | PROTOTYPE: |
1312 | CODE: |
1401 | CODE: |
… | |
… | |
1420 | SvREFCNT_dec (grp->data); |
1509 | SvREFCNT_dec (grp->data); |
1421 | grp->data = (SV *)av; |
1510 | grp->data = (SV *)av; |
1422 | } |
1511 | } |
1423 | |
1512 | |
1424 | void |
1513 | void |
1425 | feed_limit (aio_req grp, int limit) |
1514 | limit (aio_req grp, int limit) |
1426 | CODE: |
1515 | CODE: |
1427 | grp->fd2 = limit; |
1516 | grp->fd2 = limit; |
1428 | aio_grp_feed (grp); |
1517 | aio_grp_feed (grp); |
1429 | |
1518 | |
1430 | void |
1519 | void |