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1 | #if __linux |
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2 | # define _GNU_SOURCE |
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3 | #endif |
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4 | |
1 | #define _REENTRANT 1 |
5 | #define _REENTRANT 1 |
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6 | |
2 | #include <errno.h> |
7 | #include <errno.h> |
3 | |
8 | |
4 | #include "EXTERN.h" |
9 | #include "EXTERN.h" |
5 | #include "perl.h" |
10 | #include "perl.h" |
6 | #include "XSUB.h" |
11 | #include "XSUB.h" |
… | |
… | |
41 | # define NAME_MAX 4096 |
46 | # define NAME_MAX 4096 |
42 | #endif |
47 | #endif |
43 | |
48 | |
44 | #if __ia64 |
49 | #if __ia64 |
45 | # define STACKSIZE 65536 |
50 | # define STACKSIZE 65536 |
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51 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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52 | # define STACKSIZE PTHREAD_STACK_MIN |
46 | #else |
53 | #else |
47 | # define STACKSIZE 8192 |
54 | # define STACKSIZE 16384 |
48 | #endif |
55 | #endif |
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56 | |
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57 | /* buffer size for various temporary buffers */ |
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58 | #define AIO_BUFSIZE 65536 |
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59 | |
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60 | #define dBUF \ |
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61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
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62 | if (!aio_buf) \ |
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63 | return -1; |
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64 | |
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65 | #define fBUF free (aio_buf) |
49 | |
66 | |
50 | enum { |
67 | enum { |
51 | REQ_QUIT, |
68 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
69 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
100 | PRI_MIN = -4, |
117 | PRI_MIN = -4, |
101 | PRI_MAX = 4, |
118 | PRI_MAX = 4, |
102 | |
119 | |
103 | DEFAULT_PRI = 0, |
120 | DEFAULT_PRI = 0, |
104 | PRI_BIAS = -PRI_MIN, |
121 | PRI_BIAS = -PRI_MIN, |
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122 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
105 | }; |
123 | }; |
106 | |
124 | |
107 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
125 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
108 | |
126 | |
109 | static int started, wanted; |
127 | static int started, wanted; |
110 | static volatile int nreqs; |
128 | static volatile int nreqs; |
111 | static int max_outstanding = 1<<30; |
129 | static int max_outstanding = 1<<30; |
112 | static int respipe [2]; |
130 | static int respipe [2]; |
113 | |
131 | |
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132 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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133 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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134 | #else |
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135 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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136 | #endif |
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137 | |
114 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
115 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
116 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
117 | |
141 | |
118 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
142 | /* |
119 | static volatile aio_req ress, rese; /* queue start, queue end */ |
143 | * a somewhat faster data structure might be nice, but |
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144 | * with 8 priorities this actually needs <20 insns |
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145 | * per shift, the most expensive operation. |
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146 | */ |
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147 | typedef struct { |
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148 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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149 | int size; |
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150 | } reqq; |
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151 | |
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152 | static reqq req_queue; |
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153 | static reqq res_queue; |
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154 | |
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155 | int reqq_push (reqq *q, aio_req req) |
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156 | { |
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157 | int pri = req->pri; |
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158 | req->next = 0; |
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159 | |
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160 | if (q->qe[pri]) |
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161 | { |
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162 | q->qe[pri]->next = req; |
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163 | q->qe[pri] = req; |
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164 | } |
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165 | else |
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166 | q->qe[pri] = q->qs[pri] = req; |
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167 | |
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168 | return q->size++; |
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169 | } |
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170 | |
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171 | aio_req reqq_shift (reqq *q) |
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172 | { |
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173 | int pri; |
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174 | |
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175 | if (!q->size) |
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176 | return 0; |
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177 | |
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178 | --q->size; |
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179 | |
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180 | for (pri = NUM_PRI; pri--; ) |
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181 | { |
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182 | aio_req req = q->qs[pri]; |
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183 | |
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184 | if (req) |
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185 | { |
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186 | if (!(q->qs[pri] = req->next)) |
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187 | q->qe[pri] = 0; |
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188 | |
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189 | return req; |
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190 | } |
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191 | } |
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192 | |
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193 | abort (); |
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194 | } |
120 | |
195 | |
121 | static void req_invoke (aio_req req); |
196 | static void req_invoke (aio_req req); |
122 | static void req_free (aio_req req); |
197 | static void req_free (aio_req req); |
123 | |
198 | |
124 | /* must be called at most once */ |
199 | /* must be called at most once */ |
… | |
… | |
158 | ENTER; |
233 | ENTER; |
159 | SAVETMPS; |
234 | SAVETMPS; |
160 | PUSHMARK (SP); |
235 | PUSHMARK (SP); |
161 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
236 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
162 | PUTBACK; |
237 | PUTBACK; |
163 | call_sv (grp->fh2, G_VOID | G_EVAL); |
238 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
164 | SPAGAIN; |
239 | SPAGAIN; |
165 | FREETMPS; |
240 | FREETMPS; |
166 | LEAVE; |
241 | LEAVE; |
167 | } |
242 | } |
168 | |
243 | |
… | |
… | |
195 | { |
270 | { |
196 | fd_set rfd; |
271 | fd_set rfd; |
197 | |
272 | |
198 | while (nreqs) |
273 | while (nreqs) |
199 | { |
274 | { |
200 | aio_req req; |
275 | int size; |
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276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
201 | pthread_mutex_lock (&reslock); |
277 | pthread_mutex_lock (&reslock); |
202 | req = ress; |
278 | #endif |
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279 | size = res_queue.size; |
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280 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
203 | pthread_mutex_unlock (&reslock); |
281 | pthread_mutex_unlock (&reslock); |
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282 | #endif |
204 | |
283 | |
205 | if (req) |
284 | if (size) |
206 | return; |
285 | return; |
207 | |
286 | |
208 | FD_ZERO(&rfd); |
287 | FD_ZERO(&rfd); |
209 | FD_SET(respipe [0], &rfd); |
288 | FD_SET(respipe [0], &rfd); |
210 | |
289 | |
… | |
… | |
213 | } |
292 | } |
214 | |
293 | |
215 | static void req_invoke (aio_req req) |
294 | static void req_invoke (aio_req req) |
216 | { |
295 | { |
217 | dSP; |
296 | dSP; |
218 | int errorno = errno; |
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219 | |
297 | |
220 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
298 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
221 | return; |
299 | { |
222 | |
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223 | errno = req->errorno; |
300 | errno = req->errorno; |
224 | |
301 | |
225 | ENTER; |
302 | ENTER; |
226 | SAVETMPS; |
303 | SAVETMPS; |
227 | PUSHMARK (SP); |
304 | PUSHMARK (SP); |
228 | EXTEND (SP, 1); |
305 | EXTEND (SP, 1); |
229 | |
306 | |
230 | switch (req->type) |
307 | switch (req->type) |
231 | { |
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232 | case REQ_READDIR: |
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233 | { |
308 | { |
234 | SV *rv = &PL_sv_undef; |
309 | case REQ_READDIR: |
235 | |
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236 | if (req->result >= 0) |
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237 | { |
310 | { |
238 | char *buf = req->data2ptr; |
311 | SV *rv = &PL_sv_undef; |
239 | AV *av = newAV (); |
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240 | |
312 | |
241 | while (req->result) |
313 | if (req->result >= 0) |
242 | { |
314 | { |
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315 | char *buf = req->data2ptr; |
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316 | AV *av = newAV (); |
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317 | |
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318 | while (req->result) |
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319 | { |
243 | SV *sv = newSVpv (buf, 0); |
320 | SV *sv = newSVpv (buf, 0); |
244 | |
321 | |
245 | av_push (av, sv); |
322 | av_push (av, sv); |
246 | buf += SvCUR (sv) + 1; |
323 | buf += SvCUR (sv) + 1; |
247 | req->result--; |
324 | req->result--; |
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325 | } |
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326 | |
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327 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
248 | } |
328 | } |
249 | |
329 | |
250 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
330 | PUSHs (rv); |
251 | } |
331 | } |
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332 | break; |
252 | |
333 | |
253 | PUSHs (rv); |
334 | case REQ_OPEN: |
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335 | { |
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336 | /* convert fd to fh */ |
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337 | SV *fh; |
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338 | |
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339 | PUSHs (sv_2mortal (newSViv (req->result))); |
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340 | PUTBACK; |
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341 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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342 | SPAGAIN; |
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343 | |
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344 | fh = SvREFCNT_inc (POPs); |
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345 | |
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346 | PUSHMARK (SP); |
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347 | XPUSHs (sv_2mortal (fh)); |
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348 | } |
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349 | break; |
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350 | |
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351 | case REQ_GROUP: |
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352 | req->fd = 2; /* mark group as finished */ |
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353 | |
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354 | if (req->data) |
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355 | { |
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356 | int i; |
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357 | AV *av = (AV *)req->data; |
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358 | |
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359 | EXTEND (SP, AvFILL (av) + 1); |
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360 | for (i = 0; i <= AvFILL (av); ++i) |
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361 | PUSHs (*av_fetch (av, i, 0)); |
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362 | } |
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363 | break; |
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364 | |
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365 | case REQ_NOP: |
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366 | case REQ_SLEEP: |
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367 | break; |
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368 | |
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369 | default: |
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370 | PUSHs (sv_2mortal (newSViv (req->result))); |
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371 | break; |
254 | } |
372 | } |
255 | break; |
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256 | |
373 | |
257 | case REQ_OPEN: |
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258 | { |
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259 | /* convert fd to fh */ |
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260 | SV *fh; |
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261 | |
374 | |
262 | PUSHs (sv_2mortal (newSViv (req->result))); |
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263 | PUTBACK; |
375 | PUTBACK; |
264 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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265 | SPAGAIN; |
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266 | |
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267 | fh = SvREFCNT_inc (POPs); |
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268 | |
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269 | PUSHMARK (SP); |
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270 | XPUSHs (sv_2mortal (fh)); |
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271 | } |
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272 | break; |
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273 | |
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274 | case REQ_GROUP: |
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275 | req->fd = 2; /* mark group as finished */ |
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276 | |
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277 | if (req->data) |
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278 | { |
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279 | int i; |
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280 | AV *av = (AV *)req->data; |
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281 | |
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282 | EXTEND (SP, AvFILL (av) + 1); |
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283 | for (i = 0; i <= AvFILL (av); ++i) |
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284 | PUSHs (*av_fetch (av, i, 0)); |
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285 | } |
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286 | break; |
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287 | |
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288 | case REQ_NOP: |
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289 | case REQ_SLEEP: |
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290 | break; |
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291 | |
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292 | default: |
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293 | PUSHs (sv_2mortal (newSViv (req->result))); |
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294 | break; |
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295 | } |
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296 | |
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297 | |
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298 | PUTBACK; |
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299 | call_sv (req->callback, G_VOID | G_EVAL); |
376 | call_sv (req->callback, G_VOID | G_EVAL); |
300 | SPAGAIN; |
377 | SPAGAIN; |
301 | |
378 | |
302 | FREETMPS; |
379 | FREETMPS; |
303 | LEAVE; |
380 | LEAVE; |
304 | |
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305 | errno = errorno; |
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306 | |
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307 | if (SvTRUE (ERRSV)) |
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308 | { |
381 | } |
309 | req_free (req); |
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310 | croak (0); |
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311 | } |
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312 | } |
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313 | |
382 | |
314 | static void req_free (aio_req req) |
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315 | { |
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316 | if (req->grp) |
383 | if (req->grp) |
317 | { |
384 | { |
318 | aio_req grp = req->grp; |
385 | aio_req grp = req->grp; |
319 | |
386 | |
320 | /* unlink request */ |
387 | /* unlink request */ |
… | |
… | |
325 | grp->grp_first = req->grp_next; |
392 | grp->grp_first = req->grp_next; |
326 | |
393 | |
327 | aio_grp_dec (grp); |
394 | aio_grp_dec (grp); |
328 | } |
395 | } |
329 | |
396 | |
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397 | if (SvTRUE (ERRSV)) |
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398 | { |
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399 | req_free (req); |
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400 | croak (0); |
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401 | } |
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402 | } |
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403 | |
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404 | static void req_free (aio_req req) |
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405 | { |
330 | if (req->self) |
406 | if (req->self) |
331 | { |
407 | { |
332 | sv_unmagic (req->self, PERL_MAGIC_ext); |
408 | sv_unmagic (req->self, PERL_MAGIC_ext); |
333 | SvREFCNT_dec (req->self); |
409 | SvREFCNT_dec (req->self); |
334 | } |
410 | } |
… | |
… | |
366 | aio_req req; |
442 | aio_req req; |
367 | |
443 | |
368 | for (;;) |
444 | for (;;) |
369 | { |
445 | { |
370 | pthread_mutex_lock (&reslock); |
446 | pthread_mutex_lock (&reslock); |
371 | req = ress; |
447 | req = reqq_shift (&res_queue); |
372 | |
448 | |
373 | if (req) |
449 | if (req) |
374 | { |
450 | { |
375 | ress = req->next; |
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376 | |
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377 | if (!ress) |
451 | if (!res_queue.size) |
378 | { |
452 | { |
379 | /* read any signals sent by the worker threads */ |
453 | /* read any signals sent by the worker threads */ |
380 | char buf [32]; |
454 | char buf [32]; |
381 | while (read (respipe [0], buf, 32) == 32) |
455 | while (read (respipe [0], buf, 32) == 32) |
382 | ; |
456 | ; |
383 | |
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384 | rese = 0; |
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385 | } |
457 | } |
386 | } |
458 | } |
387 | |
459 | |
388 | pthread_mutex_unlock (&reslock); |
460 | pthread_mutex_unlock (&reslock); |
389 | |
461 | |
… | |
… | |
452 | start_thread (); |
524 | start_thread (); |
453 | |
525 | |
454 | ++nreqs; |
526 | ++nreqs; |
455 | |
527 | |
456 | pthread_mutex_lock (&reqlock); |
528 | pthread_mutex_lock (&reqlock); |
457 | |
529 | reqq_push (&req_queue, req); |
458 | req->next = 0; |
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459 | |
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460 | if (reqe) |
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461 | { |
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462 | reqe->next = req; |
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463 | reqe = req; |
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464 | } |
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465 | else |
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466 | reqe = reqs = req; |
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467 | |
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468 | pthread_cond_signal (&reqwait); |
530 | pthread_cond_signal (&reqwait); |
469 | pthread_mutex_unlock (&reqlock); |
531 | pthread_mutex_unlock (&reqlock); |
470 | |
532 | |
471 | if (nreqs > max_outstanding) |
533 | if (nreqs > max_outstanding) |
472 | for (;;) |
534 | for (;;) |
… | |
… | |
481 | } |
543 | } |
482 | |
544 | |
483 | static void end_thread (void) |
545 | static void end_thread (void) |
484 | { |
546 | { |
485 | aio_req req; |
547 | aio_req req; |
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548 | |
486 | Newz (0, req, 1, aio_cb); |
549 | Newz (0, req, 1, aio_cb); |
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550 | |
487 | req->type = REQ_QUIT; |
551 | req->type = REQ_QUIT; |
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552 | req->pri = PRI_MAX + PRI_BIAS; |
488 | |
553 | |
489 | req_send (req); |
554 | req_send (req); |
490 | } |
555 | } |
491 | |
556 | |
492 | static void min_parallel (int nthreads) |
557 | static void min_parallel (int nthreads) |
… | |
… | |
579 | #if !HAVE_READAHEAD |
644 | #if !HAVE_READAHEAD |
580 | # define readahead aio_readahead |
645 | # define readahead aio_readahead |
581 | |
646 | |
582 | static ssize_t readahead (int fd, off_t offset, size_t count) |
647 | static ssize_t readahead (int fd, off_t offset, size_t count) |
583 | { |
648 | { |
584 | char readahead_buf[4096]; |
649 | dBUF; |
585 | |
650 | |
586 | while (count > 0) |
651 | while (count > 0) |
587 | { |
652 | { |
588 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
653 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
589 | |
654 | |
590 | pread (fd, readahead_buf, len, offset); |
655 | pread (fd, aio_buf, len, offset); |
591 | offset += len; |
656 | offset += len; |
592 | count -= len; |
657 | count -= len; |
593 | } |
658 | } |
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659 | |
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660 | fBUF; |
594 | |
661 | |
595 | errno = 0; |
662 | errno = 0; |
596 | } |
663 | } |
597 | #endif |
664 | #endif |
598 | |
665 | |
… | |
… | |
684 | #endif |
751 | #endif |
685 | ) |
752 | ) |
686 | ) |
753 | ) |
687 | { |
754 | { |
688 | /* emulate sendfile. this is a major pain in the ass */ |
755 | /* emulate sendfile. this is a major pain in the ass */ |
689 | char buf[4096]; |
756 | dBUF; |
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757 | |
690 | res = 0; |
758 | res = 0; |
691 | |
759 | |
692 | while (count) |
760 | while (count) |
693 | { |
761 | { |
694 | ssize_t cnt; |
762 | ssize_t cnt; |
695 | |
763 | |
696 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
764 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
697 | |
765 | |
698 | if (cnt <= 0) |
766 | if (cnt <= 0) |
699 | { |
767 | { |
700 | if (cnt && !res) res = -1; |
768 | if (cnt && !res) res = -1; |
701 | break; |
769 | break; |
702 | } |
770 | } |
703 | |
771 | |
704 | cnt = write (ofd, buf, cnt); |
772 | cnt = write (ofd, aio_buf, cnt); |
705 | |
773 | |
706 | if (cnt <= 0) |
774 | if (cnt <= 0) |
707 | { |
775 | { |
708 | if (cnt && !res) res = -1; |
776 | if (cnt && !res) res = -1; |
709 | break; |
777 | break; |
… | |
… | |
711 | |
779 | |
712 | offset += cnt; |
780 | offset += cnt; |
713 | res += cnt; |
781 | res += cnt; |
714 | count -= cnt; |
782 | count -= cnt; |
715 | } |
783 | } |
|
|
784 | |
|
|
785 | fBUF; |
716 | } |
786 | } |
717 | |
787 | |
718 | return res; |
788 | return res; |
719 | } |
789 | } |
720 | |
790 | |
721 | /* read a full directory */ |
791 | /* read a full directory */ |
722 | static int scandir_ (const char *path, void **namesp) |
792 | static int scandir_ (const char *path, void **namesp) |
723 | { |
793 | { |
724 | DIR *dirp = opendir (path); |
794 | DIR *dirp; |
725 | union |
795 | union |
726 | { |
796 | { |
727 | struct dirent d; |
797 | struct dirent d; |
728 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
798 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
729 | } u; |
799 | } *u; |
730 | struct dirent *entp; |
800 | struct dirent *entp; |
731 | char *name, *names; |
801 | char *name, *names; |
732 | int memlen = 4096; |
802 | int memlen = 4096; |
733 | int memofs = 0; |
803 | int memofs = 0; |
734 | int res = 0; |
804 | int res = 0; |
735 | int errorno; |
805 | int errorno; |
736 | |
806 | |
|
|
807 | dirp = opendir (path); |
737 | if (!dirp) |
808 | if (!dirp) |
738 | return -1; |
809 | return -1; |
739 | |
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
740 | names = malloc (memlen); |
812 | names = malloc (memlen); |
741 | |
813 | |
|
|
814 | if (u && names) |
742 | for (;;) |
815 | for (;;) |
743 | { |
816 | { |
|
|
817 | errno = 0; |
744 | errno = 0, readdir_r (dirp, &u.d, &entp); |
818 | readdir_r (dirp, &u->d, &entp); |
745 | |
819 | |
746 | if (!entp) |
820 | if (!entp) |
747 | break; |
821 | break; |
748 | |
822 | |
749 | name = entp->d_name; |
823 | name = entp->d_name; |
750 | |
824 | |
751 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
825 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
752 | { |
826 | { |
753 | int len = strlen (name) + 1; |
827 | int len = strlen (name) + 1; |
754 | |
828 | |
755 | res++; |
829 | res++; |
756 | |
830 | |
757 | while (memofs + len > memlen) |
831 | while (memofs + len > memlen) |
758 | { |
832 | { |
759 | memlen *= 2; |
833 | memlen *= 2; |
760 | names = realloc (names, memlen); |
834 | names = realloc (names, memlen); |
761 | if (!names) |
835 | if (!names) |
762 | break; |
836 | break; |
763 | } |
837 | } |
764 | |
838 | |
765 | memcpy (names + memofs, name, len); |
839 | memcpy (names + memofs, name, len); |
766 | memofs += len; |
840 | memofs += len; |
767 | } |
841 | } |
768 | } |
842 | } |
769 | |
843 | |
770 | errorno = errno; |
844 | errorno = errno; |
|
|
845 | free (u); |
771 | closedir (dirp); |
846 | closedir (dirp); |
772 | |
847 | |
773 | if (errorno) |
848 | if (errorno) |
774 | { |
849 | { |
775 | free (names); |
850 | free (names); |
… | |
… | |
792 | { |
867 | { |
793 | pthread_mutex_lock (&reqlock); |
868 | pthread_mutex_lock (&reqlock); |
794 | |
869 | |
795 | for (;;) |
870 | for (;;) |
796 | { |
871 | { |
797 | req = reqs; |
872 | req = reqq_shift (&req_queue); |
798 | |
|
|
799 | if (reqs) |
|
|
800 | { |
|
|
801 | reqs = reqs->next; |
|
|
802 | if (!reqs) reqe = 0; |
|
|
803 | } |
|
|
804 | |
873 | |
805 | if (req) |
874 | if (req) |
806 | break; |
875 | break; |
807 | |
876 | |
808 | pthread_cond_wait (&reqwait, &reqlock); |
877 | pthread_cond_wait (&reqwait, &reqlock); |
… | |
… | |
860 | |
929 | |
861 | req->errorno = errno; |
930 | req->errorno = errno; |
862 | |
931 | |
863 | pthread_mutex_lock (&reslock); |
932 | pthread_mutex_lock (&reslock); |
864 | |
933 | |
865 | req->next = 0; |
934 | if (!reqq_push (&res_queue, req)) |
866 | |
|
|
867 | if (rese) |
|
|
868 | { |
|
|
869 | rese->next = req; |
|
|
870 | rese = req; |
|
|
871 | } |
|
|
872 | else |
|
|
873 | { |
|
|
874 | rese = ress = req; |
|
|
875 | |
|
|
876 | /* write a dummy byte to the pipe so fh becomes ready */ |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
877 | write (respipe [1], &respipe, 1); |
936 | write (respipe [1], &respipe, 1); |
878 | } |
|
|
879 | |
937 | |
880 | pthread_mutex_unlock (&reslock); |
938 | pthread_mutex_unlock (&reslock); |
881 | } |
939 | } |
882 | while (type != REQ_QUIT); |
940 | while (type != REQ_QUIT); |
883 | |
941 | |
… | |
… | |
914 | { |
972 | { |
915 | aio_req prv; |
973 | aio_req prv; |
916 | |
974 | |
917 | started = 0; |
975 | started = 0; |
918 | |
976 | |
919 | while (reqs) |
977 | while (prv = reqq_shift (&req_queue)) |
920 | { |
|
|
921 | prv = reqs; |
|
|
922 | reqs = prv->next; |
|
|
923 | req_free (prv); |
978 | req_free (prv); |
924 | } |
|
|
925 | |
979 | |
926 | reqs = reqe = 0; |
980 | while (prv = reqq_shift (&res_queue)) |
927 | |
|
|
928 | while (ress) |
|
|
929 | { |
|
|
930 | prv = ress; |
|
|
931 | ress = prv->next; |
|
|
932 | req_free (prv); |
981 | req_free (prv); |
933 | } |
982 | |
934 | |
|
|
935 | ress = rese = 0; |
|
|
936 | |
|
|
937 | close (respipe [0]); |
983 | close (respipe [0]); |
938 | close (respipe [1]); |
984 | close (respipe [1]); |
939 | create_pipe (); |
985 | create_pipe (); |
940 | |
986 | |
941 | atfork_parent (); |
987 | atfork_parent (); |
… | |
… | |
1256 | req->type = REQ_NOP; |
1302 | req->type = REQ_NOP; |
1257 | |
1303 | |
1258 | REQ_SEND; |
1304 | REQ_SEND; |
1259 | } |
1305 | } |
1260 | |
1306 | |
1261 | #if 0 |
|
|
1262 | |
|
|
1263 | void |
1307 | void |
1264 | aio_pri (int pri = DEFAULT_PRI) |
1308 | aioreq_pri (int pri = DEFAULT_PRI) |
1265 | CODE: |
1309 | CODE: |
1266 | if (pri < PRI_MIN) pri = PRI_MIN; |
1310 | if (pri < PRI_MIN) pri = PRI_MIN; |
1267 | if (pri > PRI_MAX) pri = PRI_MAX; |
1311 | if (pri > PRI_MAX) pri = PRI_MAX; |
1268 | next_pri = pri + PRI_BIAS; |
1312 | next_pri = pri + PRI_BIAS; |
1269 | |
1313 | |
1270 | #endif |
1314 | void |
|
|
1315 | aioreq_nice (int nice = 0) |
|
|
1316 | CODE: |
|
|
1317 | nice = next_pri - nice; |
|
|
1318 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1319 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1320 | next_pri = nice + PRI_BIAS; |
1271 | |
1321 | |
1272 | void |
1322 | void |
1273 | flush () |
1323 | flush () |
1274 | PROTOTYPE: |
1324 | PROTOTYPE: |
1275 | CODE: |
1325 | CODE: |
… | |
… | |
1324 | |
1374 | |
1325 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1375 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1326 | |
1376 | |
1327 | void |
1377 | void |
1328 | cancel (aio_req_ornot req) |
1378 | cancel (aio_req_ornot req) |
1329 | PROTOTYPE: |
|
|
1330 | CODE: |
1379 | CODE: |
1331 | req_cancel (req); |
1380 | req_cancel (req); |
1332 | |
1381 | |
1333 | void |
1382 | void |
1334 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1383 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
… | |
… | |
1384 | SvREFCNT_dec (grp->data); |
1433 | SvREFCNT_dec (grp->data); |
1385 | grp->data = (SV *)av; |
1434 | grp->data = (SV *)av; |
1386 | } |
1435 | } |
1387 | |
1436 | |
1388 | void |
1437 | void |
1389 | feed_limit (aio_req grp, int limit) |
1438 | limit (aio_req grp, int limit) |
1390 | CODE: |
1439 | CODE: |
1391 | grp->fd2 = limit; |
1440 | grp->fd2 = limit; |
1392 | aio_grp_feed (grp); |
1441 | aio_grp_feed (grp); |
1393 | |
1442 | |
1394 | void |
1443 | void |