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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 | |
… | |
… | |
191 | } |
266 | } |
192 | } |
267 | } |
193 | |
268 | |
194 | static void poll_wait () |
269 | static void poll_wait () |
195 | { |
270 | { |
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271 | fd_set rfd; |
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272 | |
196 | while (nreqs) |
273 | while (nreqs) |
197 | { |
274 | { |
198 | aio_req req; |
275 | int size; |
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276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
199 | pthread_mutex_lock (&reslock); |
277 | pthread_mutex_lock (&reslock); |
200 | 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 */ |
201 | pthread_mutex_unlock (&reslock); |
281 | pthread_mutex_unlock (&reslock); |
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282 | #endif |
202 | |
283 | |
203 | if (req) |
284 | if (size) |
204 | return; |
285 | return; |
205 | |
286 | |
206 | fd_set rfd; |
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207 | FD_ZERO(&rfd); |
287 | FD_ZERO(&rfd); |
208 | FD_SET(respipe [0], &rfd); |
288 | FD_SET(respipe [0], &rfd); |
209 | |
289 | |
210 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
290 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
211 | } |
291 | } |
212 | } |
292 | } |
213 | |
293 | |
214 | static void req_invoke (aio_req req) |
294 | static void req_invoke (aio_req req) |
215 | { |
295 | { |
216 | dSP; |
296 | dSP; |
217 | int errorno = errno; |
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218 | |
297 | |
219 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
298 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
220 | return; |
299 | { |
221 | |
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222 | errno = req->errorno; |
300 | errno = req->errorno; |
223 | |
301 | |
224 | ENTER; |
302 | ENTER; |
225 | SAVETMPS; |
303 | SAVETMPS; |
226 | PUSHMARK (SP); |
304 | PUSHMARK (SP); |
227 | EXTEND (SP, 1); |
305 | EXTEND (SP, 1); |
228 | |
306 | |
229 | switch (req->type) |
307 | switch (req->type) |
230 | { |
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231 | case REQ_READDIR: |
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232 | { |
308 | { |
233 | SV *rv = &PL_sv_undef; |
309 | case REQ_READDIR: |
234 | |
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235 | if (req->result >= 0) |
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236 | { |
310 | { |
237 | char *buf = req->data2ptr; |
311 | SV *rv = &PL_sv_undef; |
238 | AV *av = newAV (); |
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239 | |
312 | |
240 | while (req->result) |
313 | if (req->result >= 0) |
241 | { |
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 | { |
242 | SV *sv = newSVpv (buf, 0); |
320 | SV *sv = newSVpv (buf, 0); |
243 | |
321 | |
244 | av_push (av, sv); |
322 | av_push (av, sv); |
245 | buf += SvCUR (sv) + 1; |
323 | buf += SvCUR (sv) + 1; |
246 | 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)); |
247 | } |
328 | } |
248 | |
329 | |
249 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
330 | PUSHs (rv); |
250 | } |
331 | } |
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332 | break; |
251 | |
333 | |
252 | 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; |
253 | } |
372 | } |
254 | break; |
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255 | |
373 | |
256 | case REQ_OPEN: |
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257 | { |
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258 | /* convert fd to fh */ |
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259 | SV *fh; |
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260 | |
374 | |
261 | PUSHs (sv_2mortal (newSViv (req->result))); |
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262 | PUTBACK; |
375 | PUTBACK; |
263 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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264 | SPAGAIN; |
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265 | |
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266 | fh = SvREFCNT_inc (POPs); |
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267 | |
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268 | PUSHMARK (SP); |
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269 | XPUSHs (sv_2mortal (fh)); |
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270 | } |
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271 | break; |
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272 | |
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273 | case REQ_GROUP: |
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274 | req->fd = 2; /* mark group as finished */ |
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275 | |
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276 | if (req->data) |
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277 | { |
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278 | int i; |
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279 | AV *av = (AV *)req->data; |
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280 | |
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281 | EXTEND (SP, AvFILL (av) + 1); |
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282 | for (i = 0; i <= AvFILL (av); ++i) |
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283 | PUSHs (*av_fetch (av, i, 0)); |
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284 | } |
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285 | break; |
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286 | |
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287 | case REQ_NOP: |
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288 | case REQ_SLEEP: |
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289 | break; |
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290 | |
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291 | default: |
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292 | PUSHs (sv_2mortal (newSViv (req->result))); |
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293 | break; |
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294 | } |
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295 | |
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296 | |
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297 | PUTBACK; |
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298 | call_sv (req->callback, G_VOID | G_EVAL); |
376 | call_sv (req->callback, G_VOID | G_EVAL); |
299 | SPAGAIN; |
377 | SPAGAIN; |
300 | |
378 | |
301 | FREETMPS; |
379 | FREETMPS; |
302 | LEAVE; |
380 | LEAVE; |
303 | |
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304 | errno = errorno; |
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305 | |
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306 | if (SvTRUE (ERRSV)) |
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307 | { |
381 | } |
308 | req_free (req); |
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309 | croak (0); |
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310 | } |
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311 | } |
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312 | |
382 | |
313 | static void req_free (aio_req req) |
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314 | { |
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315 | if (req->grp) |
383 | if (req->grp) |
316 | { |
384 | { |
317 | aio_req grp = req->grp; |
385 | aio_req grp = req->grp; |
318 | |
386 | |
319 | /* unlink request */ |
387 | /* unlink request */ |
… | |
… | |
324 | grp->grp_first = req->grp_next; |
392 | grp->grp_first = req->grp_next; |
325 | |
393 | |
326 | aio_grp_dec (grp); |
394 | aio_grp_dec (grp); |
327 | } |
395 | } |
328 | |
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 | { |
329 | if (req->self) |
406 | if (req->self) |
330 | { |
407 | { |
331 | sv_unmagic (req->self, PERL_MAGIC_ext); |
408 | sv_unmagic (req->self, PERL_MAGIC_ext); |
332 | SvREFCNT_dec (req->self); |
409 | SvREFCNT_dec (req->self); |
333 | } |
410 | } |
… | |
… | |
365 | aio_req req; |
442 | aio_req req; |
366 | |
443 | |
367 | for (;;) |
444 | for (;;) |
368 | { |
445 | { |
369 | pthread_mutex_lock (&reslock); |
446 | pthread_mutex_lock (&reslock); |
370 | req = ress; |
447 | req = reqq_shift (&res_queue); |
371 | |
448 | |
372 | if (req) |
449 | if (req) |
373 | { |
450 | { |
374 | ress = req->next; |
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375 | |
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376 | if (!ress) |
451 | if (!res_queue.size) |
377 | { |
452 | { |
378 | /* read any signals sent by the worker threads */ |
453 | /* read any signals sent by the worker threads */ |
379 | char buf [32]; |
454 | char buf [32]; |
380 | while (read (respipe [0], buf, 32) == 32) |
455 | while (read (respipe [0], buf, 32) == 32) |
381 | ; |
456 | ; |
382 | |
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383 | rese = 0; |
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384 | } |
457 | } |
385 | } |
458 | } |
386 | |
459 | |
387 | pthread_mutex_unlock (&reslock); |
460 | pthread_mutex_unlock (&reslock); |
388 | |
461 | |
… | |
… | |
451 | start_thread (); |
524 | start_thread (); |
452 | |
525 | |
453 | ++nreqs; |
526 | ++nreqs; |
454 | |
527 | |
455 | pthread_mutex_lock (&reqlock); |
528 | pthread_mutex_lock (&reqlock); |
456 | |
529 | reqq_push (&req_queue, req); |
457 | req->next = 0; |
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458 | |
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459 | if (reqe) |
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460 | { |
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461 | reqe->next = req; |
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462 | reqe = req; |
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463 | } |
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464 | else |
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465 | reqe = reqs = req; |
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466 | |
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467 | pthread_cond_signal (&reqwait); |
530 | pthread_cond_signal (&reqwait); |
468 | pthread_mutex_unlock (&reqlock); |
531 | pthread_mutex_unlock (&reqlock); |
469 | |
532 | |
470 | if (nreqs > max_outstanding) |
533 | if (nreqs > max_outstanding) |
471 | for (;;) |
534 | for (;;) |
… | |
… | |
480 | } |
543 | } |
481 | |
544 | |
482 | static void end_thread (void) |
545 | static void end_thread (void) |
483 | { |
546 | { |
484 | aio_req req; |
547 | aio_req req; |
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548 | |
485 | Newz (0, req, 1, aio_cb); |
549 | Newz (0, req, 1, aio_cb); |
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550 | |
486 | req->type = REQ_QUIT; |
551 | req->type = REQ_QUIT; |
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552 | req->pri = PRI_MAX + PRI_BIAS; |
487 | |
553 | |
488 | req_send (req); |
554 | req_send (req); |
489 | } |
555 | } |
490 | |
556 | |
491 | static void min_parallel (int nthreads) |
557 | static void min_parallel (int nthreads) |
… | |
… | |
578 | #if !HAVE_READAHEAD |
644 | #if !HAVE_READAHEAD |
579 | # define readahead aio_readahead |
645 | # define readahead aio_readahead |
580 | |
646 | |
581 | 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) |
582 | { |
648 | { |
583 | char readahead_buf[4096]; |
649 | dBUF; |
584 | |
650 | |
585 | while (count > 0) |
651 | while (count > 0) |
586 | { |
652 | { |
587 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
653 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
588 | |
654 | |
589 | pread (fd, readahead_buf, len, offset); |
655 | pread (fd, aio_buf, len, offset); |
590 | offset += len; |
656 | offset += len; |
591 | count -= len; |
657 | count -= len; |
592 | } |
658 | } |
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659 | |
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660 | fBUF; |
593 | |
661 | |
594 | errno = 0; |
662 | errno = 0; |
595 | } |
663 | } |
596 | #endif |
664 | #endif |
597 | |
665 | |
… | |
… | |
683 | #endif |
751 | #endif |
684 | ) |
752 | ) |
685 | ) |
753 | ) |
686 | { |
754 | { |
687 | /* emulate sendfile. this is a major pain in the ass */ |
755 | /* emulate sendfile. this is a major pain in the ass */ |
688 | char buf[4096]; |
756 | dBUF; |
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757 | |
689 | res = 0; |
758 | res = 0; |
690 | |
759 | |
691 | while (count) |
760 | while (count) |
692 | { |
761 | { |
693 | ssize_t cnt; |
762 | ssize_t cnt; |
694 | |
763 | |
695 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
764 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
696 | |
765 | |
697 | if (cnt <= 0) |
766 | if (cnt <= 0) |
698 | { |
767 | { |
699 | if (cnt && !res) res = -1; |
768 | if (cnt && !res) res = -1; |
700 | break; |
769 | break; |
701 | } |
770 | } |
702 | |
771 | |
703 | cnt = write (ofd, buf, cnt); |
772 | cnt = write (ofd, aio_buf, cnt); |
704 | |
773 | |
705 | if (cnt <= 0) |
774 | if (cnt <= 0) |
706 | { |
775 | { |
707 | if (cnt && !res) res = -1; |
776 | if (cnt && !res) res = -1; |
708 | break; |
777 | break; |
… | |
… | |
710 | |
779 | |
711 | offset += cnt; |
780 | offset += cnt; |
712 | res += cnt; |
781 | res += cnt; |
713 | count -= cnt; |
782 | count -= cnt; |
714 | } |
783 | } |
|
|
784 | |
|
|
785 | fBUF; |
715 | } |
786 | } |
716 | |
787 | |
717 | return res; |
788 | return res; |
718 | } |
789 | } |
719 | |
790 | |
720 | /* read a full directory */ |
791 | /* read a full directory */ |
721 | static int scandir_ (const char *path, void **namesp) |
792 | static int scandir_ (const char *path, void **namesp) |
722 | { |
793 | { |
723 | DIR *dirp = opendir (path); |
794 | DIR *dirp; |
724 | union |
795 | union |
725 | { |
796 | { |
726 | struct dirent d; |
797 | struct dirent d; |
727 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
798 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
728 | } u; |
799 | } *u; |
729 | struct dirent *entp; |
800 | struct dirent *entp; |
730 | char *name, *names; |
801 | char *name, *names; |
731 | int memlen = 4096; |
802 | int memlen = 4096; |
732 | int memofs = 0; |
803 | int memofs = 0; |
733 | int res = 0; |
804 | int res = 0; |
734 | int errorno; |
805 | int errorno; |
735 | |
806 | |
|
|
807 | dirp = opendir (path); |
736 | if (!dirp) |
808 | if (!dirp) |
737 | return -1; |
809 | return -1; |
738 | |
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
739 | names = malloc (memlen); |
812 | names = malloc (memlen); |
740 | |
813 | |
|
|
814 | if (u && names) |
741 | for (;;) |
815 | for (;;) |
742 | { |
816 | { |
|
|
817 | errno = 0; |
743 | errno = 0, readdir_r (dirp, &u.d, &entp); |
818 | readdir_r (dirp, &u->d, &entp); |
744 | |
819 | |
745 | if (!entp) |
820 | if (!entp) |
746 | break; |
821 | break; |
747 | |
822 | |
748 | name = entp->d_name; |
823 | name = entp->d_name; |
749 | |
824 | |
750 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
825 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
751 | { |
826 | { |
752 | int len = strlen (name) + 1; |
827 | int len = strlen (name) + 1; |
753 | |
828 | |
754 | res++; |
829 | res++; |
755 | |
830 | |
756 | while (memofs + len > memlen) |
831 | while (memofs + len > memlen) |
757 | { |
832 | { |
758 | memlen *= 2; |
833 | memlen *= 2; |
759 | names = realloc (names, memlen); |
834 | names = realloc (names, memlen); |
760 | if (!names) |
835 | if (!names) |
761 | break; |
836 | break; |
762 | } |
837 | } |
763 | |
838 | |
764 | memcpy (names + memofs, name, len); |
839 | memcpy (names + memofs, name, len); |
765 | memofs += len; |
840 | memofs += len; |
766 | } |
841 | } |
767 | } |
842 | } |
768 | |
843 | |
769 | errorno = errno; |
844 | errorno = errno; |
|
|
845 | free (u); |
770 | closedir (dirp); |
846 | closedir (dirp); |
771 | |
847 | |
772 | if (errorno) |
848 | if (errorno) |
773 | { |
849 | { |
774 | free (names); |
850 | free (names); |
… | |
… | |
791 | { |
867 | { |
792 | pthread_mutex_lock (&reqlock); |
868 | pthread_mutex_lock (&reqlock); |
793 | |
869 | |
794 | for (;;) |
870 | for (;;) |
795 | { |
871 | { |
796 | req = reqs; |
872 | req = reqq_shift (&req_queue); |
797 | |
|
|
798 | if (reqs) |
|
|
799 | { |
|
|
800 | reqs = reqs->next; |
|
|
801 | if (!reqs) reqe = 0; |
|
|
802 | } |
|
|
803 | |
873 | |
804 | if (req) |
874 | if (req) |
805 | break; |
875 | break; |
806 | |
876 | |
807 | pthread_cond_wait (&reqwait, &reqlock); |
877 | pthread_cond_wait (&reqwait, &reqlock); |
… | |
… | |
859 | |
929 | |
860 | req->errorno = errno; |
930 | req->errorno = errno; |
861 | |
931 | |
862 | pthread_mutex_lock (&reslock); |
932 | pthread_mutex_lock (&reslock); |
863 | |
933 | |
864 | req->next = 0; |
934 | if (!reqq_push (&res_queue, req)) |
865 | |
|
|
866 | if (rese) |
|
|
867 | { |
|
|
868 | rese->next = req; |
|
|
869 | rese = req; |
|
|
870 | } |
|
|
871 | else |
|
|
872 | { |
|
|
873 | rese = ress = req; |
|
|
874 | |
|
|
875 | /* write a dummy byte to the pipe so fh becomes ready */ |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
876 | write (respipe [1], &respipe, 1); |
936 | write (respipe [1], &respipe, 1); |
877 | } |
|
|
878 | |
937 | |
879 | pthread_mutex_unlock (&reslock); |
938 | pthread_mutex_unlock (&reslock); |
880 | } |
939 | } |
881 | while (type != REQ_QUIT); |
940 | while (type != REQ_QUIT); |
882 | |
941 | |
… | |
… | |
913 | { |
972 | { |
914 | aio_req prv; |
973 | aio_req prv; |
915 | |
974 | |
916 | started = 0; |
975 | started = 0; |
917 | |
976 | |
918 | while (reqs) |
977 | while (prv = reqq_shift (&req_queue)) |
919 | { |
|
|
920 | prv = reqs; |
|
|
921 | reqs = prv->next; |
|
|
922 | req_free (prv); |
978 | req_free (prv); |
923 | } |
|
|
924 | |
979 | |
925 | reqs = reqe = 0; |
980 | while (prv = reqq_shift (&res_queue)) |
926 | |
|
|
927 | while (ress) |
|
|
928 | { |
|
|
929 | prv = ress; |
|
|
930 | ress = prv->next; |
|
|
931 | req_free (prv); |
981 | req_free (prv); |
932 | } |
982 | |
933 | |
|
|
934 | ress = rese = 0; |
|
|
935 | |
|
|
936 | close (respipe [0]); |
983 | close (respipe [0]); |
937 | close (respipe [1]); |
984 | close (respipe [1]); |
938 | create_pipe (); |
985 | create_pipe (); |
939 | |
986 | |
940 | atfork_parent (); |
987 | atfork_parent (); |
… | |
… | |
1255 | req->type = REQ_NOP; |
1302 | req->type = REQ_NOP; |
1256 | |
1303 | |
1257 | REQ_SEND; |
1304 | REQ_SEND; |
1258 | } |
1305 | } |
1259 | |
1306 | |
1260 | #if 0 |
|
|
1261 | |
|
|
1262 | void |
1307 | void |
1263 | aio_pri (int pri = DEFAULT_PRI) |
1308 | aioreq_pri (int pri = DEFAULT_PRI) |
1264 | CODE: |
1309 | CODE: |
1265 | if (pri < PRI_MIN) pri = PRI_MIN; |
1310 | if (pri < PRI_MIN) pri = PRI_MIN; |
1266 | if (pri > PRI_MAX) pri = PRI_MAX; |
1311 | if (pri > PRI_MAX) pri = PRI_MAX; |
1267 | next_pri = pri + PRI_BIAS; |
1312 | next_pri = pri + PRI_BIAS; |
1268 | |
|
|
1269 | #endif |
|
|
1270 | |
1313 | |
1271 | void |
1314 | void |
1272 | flush () |
1315 | flush () |
1273 | PROTOTYPE: |
1316 | PROTOTYPE: |
1274 | CODE: |
1317 | CODE: |
… | |
… | |
1323 | |
1366 | |
1324 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1367 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1325 | |
1368 | |
1326 | void |
1369 | void |
1327 | cancel (aio_req_ornot req) |
1370 | cancel (aio_req_ornot req) |
1328 | PROTOTYPE: |
|
|
1329 | CODE: |
1371 | CODE: |
1330 | req_cancel (req); |
1372 | req_cancel (req); |
1331 | |
1373 | |
1332 | void |
1374 | void |
1333 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1375 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
… | |
… | |
1383 | SvREFCNT_dec (grp->data); |
1425 | SvREFCNT_dec (grp->data); |
1384 | grp->data = (SV *)av; |
1426 | grp->data = (SV *)av; |
1385 | } |
1427 | } |
1386 | |
1428 | |
1387 | void |
1429 | void |
1388 | feed_limit (aio_req grp, int limit) |
1430 | limit (aio_req grp, int limit) |
1389 | CODE: |
1431 | CODE: |
1390 | grp->fd2 = limit; |
1432 | grp->fd2 = limit; |
1391 | aio_grp_feed (grp); |
1433 | aio_grp_feed (grp); |
1392 | |
1434 | |
1393 | void |
1435 | void |