1 | /* solaris */ |
1 | /* solaris */ |
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
3 | |
3 | |
4 | #if __linux |
4 | #if __linux && !defined(_GNU_SOURCE) |
5 | # define _GNU_SOURCE |
5 | # define _GNU_SOURCE |
6 | #endif |
6 | #endif |
7 | |
7 | |
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8 | /* just in case */ |
8 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
9 | |
10 | |
10 | #include <errno.h> |
11 | #include <errno.h> |
11 | |
12 | |
12 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
… | |
… | |
47 | /* used for struct dirent, AIX doesn't provide it */ |
48 | /* used for struct dirent, AIX doesn't provide it */ |
48 | #ifndef NAME_MAX |
49 | #ifndef NAME_MAX |
49 | # define NAME_MAX 4096 |
50 | # define NAME_MAX 4096 |
50 | #endif |
51 | #endif |
51 | |
52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
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57 | |
52 | #if __ia64 |
58 | #if __ia64 |
53 | # define STACKSIZE 65536 |
59 | # define STACKSIZE 65536 |
54 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
55 | # define STACKSIZE PTHREAD_STACK_MIN |
61 | # define STACKSIZE PTHREAD_STACK_MIN |
56 | #else |
62 | #else |
57 | # define STACKSIZE 16384 |
63 | # define STACKSIZE 16384 |
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64 | #endif |
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65 | |
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66 | /* wether word reads are potentially non-atomic. |
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67 | * this is conservatice, likely most arches this runs |
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68 | * on have atomic word read/writes. |
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69 | */ |
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70 | #ifndef WORDREAD_UNSAFE |
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71 | # if __i386 || __x86_64 |
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72 | # define WORDREAD_UNSAFE 0 |
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73 | # else |
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74 | # define WORDREAD_UNSAFE 1 |
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75 | # endif |
58 | #endif |
76 | #endif |
59 | |
77 | |
60 | /* buffer size for various temporary buffers */ |
78 | /* buffer size for various temporary buffers */ |
61 | #define AIO_BUFSIZE 65536 |
79 | #define AIO_BUFSIZE 65536 |
62 | |
80 | |
… | |
… | |
74 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
75 | REQ_SENDFILE, |
93 | REQ_SENDFILE, |
76 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
77 | REQ_FSYNC, REQ_FDATASYNC, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
78 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
79 | REQ_READDIR, |
97 | REQ_MKNOD, REQ_READDIR, |
80 | REQ_LINK, REQ_SYMLINK, |
98 | REQ_LINK, REQ_SYMLINK, |
81 | REQ_GROUP, REQ_NOP, |
99 | REQ_GROUP, REQ_NOP, |
82 | REQ_BUSY, |
100 | REQ_BUSY, |
83 | }; |
101 | }; |
84 | |
102 | |
… | |
… | |
126 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
144 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
127 | }; |
145 | }; |
128 | |
146 | |
129 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
147 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
130 | |
148 | |
131 | static int started, wanted; |
149 | static unsigned int started, wanted; |
132 | static volatile int nreqs; |
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133 | static int max_outstanding = 1<<30; |
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134 | static int respipe [2]; |
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135 | |
150 | |
136 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
151 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
137 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
152 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
138 | #else |
153 | #else |
139 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
154 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
140 | #endif |
155 | #endif |
141 | |
156 | |
142 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
157 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
143 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
158 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
144 | |
159 | |
145 | /* worker threasd management */ |
160 | /* worker threads management */ |
146 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
161 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
147 | |
162 | |
148 | typedef struct worker { |
163 | typedef struct worker { |
149 | /* locked by wrklock */ |
164 | /* locked by wrklock */ |
150 | struct worker *prev, *next; |
165 | struct worker *prev, *next; |
… | |
… | |
180 | wrk->prev->next = wrk->next; |
195 | wrk->prev->next = wrk->next; |
181 | |
196 | |
182 | free (wrk); |
197 | free (wrk); |
183 | } |
198 | } |
184 | |
199 | |
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200 | static volatile unsigned int nreqs, nready, npending; |
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201 | static volatile unsigned int max_outstanding = 0xffffffff; |
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202 | static int respipe [2]; |
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203 | |
185 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
204 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
186 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
205 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
187 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
206 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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207 | |
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208 | #if WORDREAD_UNSAFE |
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209 | |
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210 | static unsigned int get_nready () |
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211 | { |
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212 | unsigned int retval; |
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213 | |
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214 | LOCK (reqlock); |
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215 | retval = nready; |
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216 | UNLOCK (reqlock); |
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217 | |
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218 | return retval; |
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219 | } |
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220 | |
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221 | static unsigned int get_npending () |
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222 | { |
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223 | unsigned int retval; |
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224 | |
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225 | LOCK (reslock); |
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226 | retval = npending; |
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227 | UNLOCK (reslock); |
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228 | |
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229 | return retval; |
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230 | } |
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231 | |
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232 | #else |
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233 | |
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234 | # define get_nready() nready |
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235 | # define get_npending() npending |
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236 | |
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237 | #endif |
188 | |
238 | |
189 | /* |
239 | /* |
190 | * a somewhat faster data structure might be nice, but |
240 | * a somewhat faster data structure might be nice, but |
191 | * with 8 priorities this actually needs <20 insns |
241 | * with 8 priorities this actually needs <20 insns |
192 | * per shift, the most expensive operation. |
242 | * per shift, the most expensive operation. |
… | |
… | |
238 | } |
288 | } |
239 | |
289 | |
240 | abort (); |
290 | abort (); |
241 | } |
291 | } |
242 | |
292 | |
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|
293 | static int poll_cb (int max); |
243 | static void req_invoke (aio_req req); |
294 | static void req_invoke (aio_req req); |
244 | static void req_free (aio_req req); |
295 | static void req_free (aio_req req); |
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296 | static void req_cancel (aio_req req); |
245 | |
297 | |
246 | /* must be called at most once */ |
298 | /* must be called at most once */ |
247 | static SV *req_sv (aio_req req, const char *klass) |
299 | static SV *req_sv (aio_req req, const char *klass) |
248 | { |
300 | { |
249 | if (!req->self) |
301 | if (!req->self) |
… | |
… | |
311 | req_invoke (grp); |
363 | req_invoke (grp); |
312 | req_free (grp); |
364 | req_free (grp); |
313 | } |
365 | } |
314 | } |
366 | } |
315 | |
367 | |
316 | static void poll_wait () |
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317 | { |
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318 | fd_set rfd; |
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319 | |
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320 | while (nreqs) |
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321 | { |
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322 | int size; |
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323 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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324 | LOCK (reslock); |
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325 | #endif |
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326 | size = res_queue.size; |
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327 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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328 | UNLOCK (reslock); |
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329 | #endif |
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330 | |
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331 | if (size) |
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332 | return; |
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333 | |
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334 | FD_ZERO(&rfd); |
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335 | FD_SET(respipe [0], &rfd); |
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336 | |
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337 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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338 | } |
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339 | } |
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340 | |
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341 | static void req_invoke (aio_req req) |
368 | static void req_invoke (aio_req req) |
342 | { |
369 | { |
343 | dSP; |
370 | dSP; |
344 | |
371 | |
345 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
372 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
346 | { |
373 | { |
347 | errno = req->errorno; |
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348 | |
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349 | ENTER; |
374 | ENTER; |
350 | SAVETMPS; |
375 | SAVETMPS; |
351 | PUSHMARK (SP); |
376 | PUSHMARK (SP); |
352 | EXTEND (SP, 1); |
377 | EXTEND (SP, 1); |
353 | |
378 | |
… | |
… | |
418 | default: |
443 | default: |
419 | PUSHs (sv_2mortal (newSViv (req->result))); |
444 | PUSHs (sv_2mortal (newSViv (req->result))); |
420 | break; |
445 | break; |
421 | } |
446 | } |
422 | |
447 | |
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448 | errno = req->errorno; |
423 | |
449 | |
424 | PUTBACK; |
450 | PUTBACK; |
425 | call_sv (req->callback, G_VOID | G_EVAL); |
451 | call_sv (req->callback, G_VOID | G_EVAL); |
426 | SPAGAIN; |
452 | SPAGAIN; |
427 | |
453 | |
… | |
… | |
468 | free (req->data2ptr); |
494 | free (req->data2ptr); |
469 | |
495 | |
470 | Safefree (req); |
496 | Safefree (req); |
471 | } |
497 | } |
472 | |
498 | |
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499 | static void req_cancel_subs (aio_req grp) |
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500 | { |
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501 | aio_req sub; |
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502 | |
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503 | if (grp->type != REQ_GROUP) |
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504 | return; |
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505 | |
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506 | SvREFCNT_dec (grp->fh2); |
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507 | grp->fh2 = 0; |
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508 | |
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509 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
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510 | req_cancel (sub); |
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511 | } |
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512 | |
473 | static void req_cancel (aio_req req) |
513 | static void req_cancel (aio_req req) |
474 | { |
514 | { |
475 | req->flags |= FLAG_CANCELLED; |
515 | req->flags |= FLAG_CANCELLED; |
476 | |
516 | |
477 | if (req->type == REQ_GROUP) |
517 | req_cancel_subs (req); |
478 | { |
518 | } |
479 | aio_req sub; |
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480 | |
519 | |
481 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
520 | static void *aio_proc(void *arg); |
482 | req_cancel (sub); |
521 | |
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522 | static void start_thread (void) |
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523 | { |
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524 | sigset_t fullsigset, oldsigset; |
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525 | pthread_attr_t attr; |
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526 | |
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527 | worker *wrk = calloc (1, sizeof (worker)); |
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528 | |
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529 | if (!wrk) |
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530 | croak ("unable to allocate worker thread data"); |
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531 | |
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532 | pthread_attr_init (&attr); |
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533 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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534 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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535 | #ifdef PTHREAD_SCOPE_PROCESS |
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536 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
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537 | #endif |
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538 | |
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539 | sigfillset (&fullsigset); |
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540 | |
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541 | LOCK (wrklock); |
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542 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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543 | |
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544 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
483 | } |
545 | { |
484 | } |
546 | wrk->prev = &wrk_first; |
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547 | wrk->next = wrk_first.next; |
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548 | wrk_first.next->prev = wrk; |
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549 | wrk_first.next = wrk; |
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550 | ++started; |
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551 | } |
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552 | else |
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553 | free (wrk); |
485 | |
554 | |
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555 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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556 | UNLOCK (wrklock); |
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557 | } |
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558 | |
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559 | static void maybe_start_thread () |
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560 | { |
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561 | #if 0 |
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562 | static struct timeval last; |
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563 | struct timeval diff, now; |
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564 | #endif |
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565 | |
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566 | if (started >= wanted) |
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567 | return; |
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568 | |
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569 | if (nready <= nreqs - get_nready () - get_npending ()) |
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570 | return; |
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571 | |
|
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572 | #if 0 |
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573 | gettimeofday (&now, 0); |
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574 | |
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575 | diff.tv_sec = now.tv_sec - last.tv_sec; |
|
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576 | diff.tv_usec = now.tv_usec - last.tv_usec; |
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577 | |
|
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578 | if (diff.tv_usec < 0) |
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579 | { |
|
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580 | --diff.tv_sec; |
|
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581 | diff.tv_usec += 1000000; |
|
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582 | } |
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583 | |
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584 | if (!diff.tv_sec && diff.tv_usec < 10000) |
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585 | return; |
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586 | |
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587 | last = now; |
|
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588 | #endif |
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589 | |
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590 | start_thread (); |
|
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591 | } |
|
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592 | |
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593 | static void req_send (aio_req req) |
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594 | { |
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595 | ++nreqs; |
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596 | |
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597 | LOCK (reqlock); |
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598 | ++nready; |
|
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599 | reqq_push (&req_queue, req); |
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600 | pthread_cond_signal (&reqwait); |
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601 | UNLOCK (reqlock); |
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602 | |
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603 | maybe_start_thread (); |
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604 | } |
|
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605 | |
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606 | static void end_thread (void) |
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607 | { |
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608 | aio_req req; |
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609 | |
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610 | Newz (0, req, 1, aio_cb); |
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611 | |
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612 | req->type = REQ_QUIT; |
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613 | req->pri = PRI_MAX + PRI_BIAS; |
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614 | |
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615 | req_send (req); |
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616 | |
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617 | LOCK (wrklock); |
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618 | --started; |
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619 | UNLOCK (wrklock); |
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620 | } |
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621 | |
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622 | static void min_parallel (int nthreads) |
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623 | { |
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624 | if (wanted < nthreads) |
|
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625 | wanted = nthreads; |
|
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626 | } |
|
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627 | |
|
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628 | static void max_parallel (int nthreads) |
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629 | { |
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630 | if (wanted > nthreads) |
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631 | wanted = nthreads; |
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632 | |
|
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633 | while (started > wanted) |
|
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634 | end_thread (); |
|
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635 | } |
|
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636 | |
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637 | static void poll_wait () |
|
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638 | { |
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639 | fd_set rfd; |
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640 | |
|
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641 | while (nreqs) |
|
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642 | { |
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643 | int size; |
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644 | if (WORDREAD_UNSAFE) LOCK (reslock); |
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645 | size = res_queue.size; |
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646 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
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647 | |
|
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648 | if (size) |
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649 | return; |
|
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650 | |
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651 | maybe_start_thread (); |
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652 | |
|
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653 | FD_ZERO(&rfd); |
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654 | FD_SET(respipe [0], &rfd); |
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655 | |
|
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656 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
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657 | } |
|
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658 | } |
|
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659 | |
486 | static int poll_cb () |
660 | static int poll_cb (int max) |
487 | { |
661 | { |
488 | dSP; |
662 | dSP; |
489 | int count = 0; |
663 | int count = 0; |
490 | int do_croak = 0; |
664 | int do_croak = 0; |
491 | aio_req req; |
665 | aio_req req; |
492 | |
666 | |
493 | for (;;) |
667 | for (;;) |
494 | { |
668 | { |
495 | LOCK (reslock); |
669 | while (max <= 0 || count < max) |
496 | req = reqq_shift (&res_queue); |
|
|
497 | |
|
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498 | if (req) |
|
|
499 | { |
670 | { |
|
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671 | maybe_start_thread (); |
|
|
672 | |
|
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673 | LOCK (reslock); |
|
|
674 | req = reqq_shift (&res_queue); |
|
|
675 | |
500 | if (!res_queue.size) |
676 | if (req) |
501 | { |
677 | { |
|
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678 | --npending; |
|
|
679 | |
|
|
680 | if (!res_queue.size) |
|
|
681 | { |
502 | /* read any signals sent by the worker threads */ |
682 | /* read any signals sent by the worker threads */ |
503 | char buf [32]; |
683 | char buf [32]; |
504 | while (read (respipe [0], buf, 32) == 32) |
684 | while (read (respipe [0], buf, 32) == 32) |
|
|
685 | ; |
505 | ; |
686 | } |
506 | } |
687 | } |
|
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688 | |
|
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689 | UNLOCK (reslock); |
|
|
690 | |
|
|
691 | if (!req) |
|
|
692 | break; |
|
|
693 | |
|
|
694 | --nreqs; |
|
|
695 | |
|
|
696 | if (req->type == REQ_GROUP && req->length) |
|
|
697 | { |
|
|
698 | req->fd = 1; /* mark request as delayed */ |
|
|
699 | continue; |
|
|
700 | } |
|
|
701 | else |
|
|
702 | { |
|
|
703 | if (req->type == REQ_READ) |
|
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704 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
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705 | |
|
|
706 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
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707 | SvREADONLY_off (req->data); |
|
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708 | |
|
|
709 | if (req->statdata) |
|
|
710 | { |
|
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711 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
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712 | PL_laststatval = req->result; |
|
|
713 | PL_statcache = *(req->statdata); |
|
|
714 | } |
|
|
715 | |
|
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716 | req_invoke (req); |
|
|
717 | |
|
|
718 | count++; |
|
|
719 | } |
|
|
720 | |
|
|
721 | req_free (req); |
507 | } |
722 | } |
508 | |
723 | |
509 | UNLOCK (reslock); |
724 | if (nreqs <= max_outstanding) |
510 | |
|
|
511 | if (!req) |
|
|
512 | break; |
725 | break; |
513 | |
726 | |
514 | --nreqs; |
727 | poll_wait (); |
515 | |
728 | |
516 | if (req->type == REQ_QUIT) |
729 | max = 0; |
517 | started--; |
|
|
518 | else if (req->type == REQ_GROUP && req->length) |
|
|
519 | { |
|
|
520 | req->fd = 1; /* mark request as delayed */ |
|
|
521 | continue; |
|
|
522 | } |
|
|
523 | else |
|
|
524 | { |
|
|
525 | if (req->type == REQ_READ) |
|
|
526 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
527 | |
|
|
528 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
529 | SvREADONLY_off (req->data); |
|
|
530 | |
|
|
531 | if (req->statdata) |
|
|
532 | { |
|
|
533 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
534 | PL_laststatval = req->result; |
|
|
535 | PL_statcache = *(req->statdata); |
|
|
536 | } |
|
|
537 | |
|
|
538 | req_invoke (req); |
|
|
539 | |
|
|
540 | count++; |
|
|
541 | } |
|
|
542 | |
|
|
543 | req_free (req); |
|
|
544 | } |
730 | } |
545 | |
731 | |
546 | return count; |
732 | return count; |
547 | } |
|
|
548 | |
|
|
549 | static void *aio_proc(void *arg); |
|
|
550 | |
|
|
551 | static void start_thread (void) |
|
|
552 | { |
|
|
553 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
554 | |
|
|
555 | if (!wrk) |
|
|
556 | croak ("unable to allocate worker thread data"); |
|
|
557 | |
|
|
558 | sigset_t fullsigset, oldsigset; |
|
|
559 | pthread_attr_t attr; |
|
|
560 | |
|
|
561 | pthread_attr_init (&attr); |
|
|
562 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
563 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
564 | |
|
|
565 | sigfillset (&fullsigset); |
|
|
566 | |
|
|
567 | LOCK (wrklock); |
|
|
568 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
569 | |
|
|
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; |
|
|
576 | started++; |
|
|
577 | } |
|
|
578 | else |
|
|
579 | free (wrk); |
|
|
580 | |
|
|
581 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
582 | UNLOCK (wrklock); |
|
|
583 | } |
|
|
584 | |
|
|
585 | static void req_send (aio_req req) |
|
|
586 | { |
|
|
587 | while (started < wanted && nreqs >= started) |
|
|
588 | start_thread (); |
|
|
589 | |
|
|
590 | ++nreqs; |
|
|
591 | |
|
|
592 | LOCK (reqlock); |
|
|
593 | reqq_push (&req_queue, req); |
|
|
594 | pthread_cond_signal (&reqwait); |
|
|
595 | UNLOCK (reqlock); |
|
|
596 | |
|
|
597 | if (nreqs > max_outstanding) |
|
|
598 | for (;;) |
|
|
599 | { |
|
|
600 | poll_cb (); |
|
|
601 | |
|
|
602 | if (nreqs <= max_outstanding) |
|
|
603 | break; |
|
|
604 | |
|
|
605 | poll_wait (); |
|
|
606 | } |
|
|
607 | } |
|
|
608 | |
|
|
609 | static void end_thread (void) |
|
|
610 | { |
|
|
611 | aio_req req; |
|
|
612 | |
|
|
613 | Newz (0, req, 1, aio_cb); |
|
|
614 | |
|
|
615 | req->type = REQ_QUIT; |
|
|
616 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
617 | |
|
|
618 | req_send (req); |
|
|
619 | } |
|
|
620 | |
|
|
621 | static void min_parallel (int nthreads) |
|
|
622 | { |
|
|
623 | if (wanted < nthreads) |
|
|
624 | wanted = nthreads; |
|
|
625 | } |
|
|
626 | |
|
|
627 | static void max_parallel (int nthreads) |
|
|
628 | { |
|
|
629 | int cur = started; |
|
|
630 | |
|
|
631 | if (wanted > nthreads) |
|
|
632 | wanted = nthreads; |
|
|
633 | |
|
|
634 | while (cur > wanted) |
|
|
635 | { |
|
|
636 | end_thread (); |
|
|
637 | cur--; |
|
|
638 | } |
|
|
639 | |
|
|
640 | while (started > wanted) |
|
|
641 | { |
|
|
642 | poll_wait (); |
|
|
643 | poll_cb (); |
|
|
644 | } |
|
|
645 | } |
733 | } |
646 | |
734 | |
647 | static void create_pipe () |
735 | static void create_pipe () |
648 | { |
736 | { |
649 | if (pipe (respipe)) |
737 | if (pipe (respipe)) |
… | |
… | |
704 | #if !HAVE_FDATASYNC |
792 | #if !HAVE_FDATASYNC |
705 | # define fdatasync fsync |
793 | # define fdatasync fsync |
706 | #endif |
794 | #endif |
707 | |
795 | |
708 | #if !HAVE_READAHEAD |
796 | #if !HAVE_READAHEAD |
709 | # define readahead aio_readahead |
797 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
710 | |
798 | |
711 | static ssize_t readahead (int fd, off_t offset, size_t count) |
799 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
712 | { |
800 | { |
713 | dBUF; |
801 | dBUF; |
714 | |
802 | |
715 | while (count > 0) |
803 | while (count > 0) |
716 | { |
804 | { |
… | |
… | |
721 | count -= len; |
809 | count -= len; |
722 | } |
810 | } |
723 | |
811 | |
724 | errno = 0; |
812 | errno = 0; |
725 | } |
813 | } |
|
|
814 | |
726 | #endif |
815 | #endif |
727 | |
816 | |
728 | #if !HAVE_READDIR_R |
817 | #if !HAVE_READDIR_R |
729 | # define readdir_r aio_readdir_r |
818 | # define readdir_r aio_readdir_r |
730 | |
819 | |
… | |
… | |
775 | { |
864 | { |
776 | off_t sbytes; |
865 | off_t sbytes; |
777 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
866 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
778 | |
867 | |
779 | if (res < 0 && sbytes) |
868 | if (res < 0 && sbytes) |
780 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
869 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
781 | res = sbytes; |
870 | res = sbytes; |
782 | } |
871 | } |
783 | |
872 | |
784 | # elif __hpux |
873 | # elif __hpux |
785 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
874 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
865 | int errorno; |
954 | int errorno; |
866 | |
955 | |
867 | LOCK (wrklock); |
956 | LOCK (wrklock); |
868 | self->dirp = dirp = opendir (req->dataptr); |
957 | self->dirp = dirp = opendir (req->dataptr); |
869 | self->dbuf = u = malloc (sizeof (*u)); |
958 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
959 | req->data2ptr = names = malloc (memlen); |
870 | UNLOCK (wrklock); |
960 | UNLOCK (wrklock); |
871 | |
|
|
872 | req->data2ptr = names = malloc (memlen); |
|
|
873 | |
961 | |
874 | if (dirp && u && names) |
962 | if (dirp && u && names) |
875 | for (;;) |
963 | for (;;) |
876 | { |
964 | { |
877 | errno = 0; |
965 | errno = 0; |
… | |
… | |
913 | /*****************************************************************************/ |
1001 | /*****************************************************************************/ |
914 | |
1002 | |
915 | static void *aio_proc (void *thr_arg) |
1003 | static void *aio_proc (void *thr_arg) |
916 | { |
1004 | { |
917 | aio_req req; |
1005 | aio_req req; |
918 | int type; |
|
|
919 | worker *self = (worker *)thr_arg; |
1006 | worker *self = (worker *)thr_arg; |
920 | |
1007 | |
921 | do |
1008 | for (;;) |
922 | { |
1009 | { |
923 | LOCK (reqlock); |
1010 | LOCK (reqlock); |
924 | |
1011 | |
925 | for (;;) |
1012 | for (;;) |
926 | { |
1013 | { |
… | |
… | |
930 | break; |
1017 | break; |
931 | |
1018 | |
932 | pthread_cond_wait (&reqwait, &reqlock); |
1019 | pthread_cond_wait (&reqwait, &reqlock); |
933 | } |
1020 | } |
934 | |
1021 | |
|
|
1022 | --nready; |
|
|
1023 | |
935 | UNLOCK (reqlock); |
1024 | UNLOCK (reqlock); |
936 | |
1025 | |
937 | errno = 0; /* strictly unnecessary */ |
1026 | errno = 0; /* strictly unnecessary */ |
938 | type = req->type; /* remember type for QUIT check */ |
|
|
939 | |
1027 | |
940 | if (!(req->flags & FLAG_CANCELLED)) |
1028 | if (!(req->flags & FLAG_CANCELLED)) |
941 | switch (type) |
1029 | switch (req->type) |
942 | { |
1030 | { |
943 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1031 | case REQ_READ: req->result = pread (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; |
1032 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
945 | |
1033 | |
946 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1034 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
955 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1043 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
956 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1044 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
957 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1045 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
958 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1046 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
959 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1047 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1048 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
960 | |
1049 | |
961 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1050 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
962 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1051 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
963 | case REQ_READDIR: scandir_ (req, self); break; |
1052 | case REQ_READDIR: scandir_ (req, self); break; |
964 | |
1053 | |
… | |
… | |
972 | req->result = select (0, 0, 0, 0, &tv); |
1061 | req->result = select (0, 0, 0, 0, &tv); |
973 | } |
1062 | } |
974 | |
1063 | |
975 | case REQ_GROUP: |
1064 | case REQ_GROUP: |
976 | case REQ_NOP: |
1065 | case REQ_NOP: |
|
|
1066 | break; |
|
|
1067 | |
977 | case REQ_QUIT: |
1068 | case REQ_QUIT: |
|
|
1069 | LOCK (wrklock); |
|
|
1070 | worker_free (self); |
|
|
1071 | --started; |
|
|
1072 | UNLOCK (wrklock); |
978 | break; |
1073 | return 0; |
979 | |
1074 | |
980 | default: |
1075 | default: |
981 | req->result = ENOSYS; |
1076 | req->result = ENOSYS; |
982 | break; |
1077 | break; |
983 | } |
1078 | } |
984 | |
1079 | |
985 | req->errorno = errno; |
1080 | req->errorno = errno; |
986 | |
1081 | |
987 | LOCK (reslock); |
1082 | LOCK (reslock); |
988 | |
1083 | |
|
|
1084 | ++npending; |
|
|
1085 | |
989 | if (!reqq_push (&res_queue, req)) |
1086 | if (!reqq_push (&res_queue, req)) |
990 | /* write a dummy byte to the pipe so fh becomes ready */ |
1087 | /* write a dummy byte to the pipe so fh becomes ready */ |
991 | write (respipe [1], &respipe, 1); |
1088 | write (respipe [1], &respipe, 1); |
992 | |
1089 | |
993 | self->req = 0; |
1090 | self->req = 0; |
994 | worker_clear (self); |
1091 | worker_clear (self); |
995 | |
1092 | |
996 | UNLOCK (reslock); |
1093 | UNLOCK (reslock); |
997 | } |
1094 | } |
998 | while (type != REQ_QUIT); |
|
|
999 | |
|
|
1000 | LOCK (wrklock); |
|
|
1001 | worker_free (self); |
|
|
1002 | UNLOCK (wrklock); |
|
|
1003 | |
|
|
1004 | return 0; |
|
|
1005 | } |
1095 | } |
1006 | |
1096 | |
1007 | /*****************************************************************************/ |
1097 | /*****************************************************************************/ |
1008 | |
1098 | |
1009 | static void atfork_prepare (void) |
1099 | static void atfork_prepare (void) |
… | |
… | |
1092 | { |
1182 | { |
1093 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1183 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1094 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1184 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1095 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1185 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1096 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1186 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1187 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1188 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
1097 | |
1189 | |
1098 | create_pipe (); |
1190 | create_pipe (); |
1099 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1191 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1100 | } |
|
|
1101 | |
1192 | |
|
|
1193 | start_thread (); |
|
|
1194 | } |
|
|
1195 | |
1102 | void |
1196 | void |
1103 | min_parallel (nthreads) |
1197 | min_parallel (int nthreads) |
1104 | int nthreads |
|
|
1105 | PROTOTYPE: $ |
1198 | PROTOTYPE: $ |
1106 | |
1199 | |
1107 | void |
1200 | void |
1108 | max_parallel (nthreads) |
1201 | max_parallel (int nthreads) |
1109 | int nthreads |
|
|
1110 | PROTOTYPE: $ |
1202 | PROTOTYPE: $ |
1111 | |
1203 | |
1112 | int |
1204 | int |
1113 | max_outstanding (nreqs) |
1205 | max_outstanding (int maxreqs) |
1114 | int nreqs |
1206 | PROTOTYPE: $ |
1115 | PROTOTYPE: $ |
|
|
1116 | CODE: |
1207 | CODE: |
1117 | RETVAL = max_outstanding; |
1208 | RETVAL = max_outstanding; |
1118 | max_outstanding = nreqs; |
1209 | max_outstanding = maxreqs; |
|
|
1210 | OUTPUT: |
|
|
1211 | RETVAL |
1119 | |
1212 | |
1120 | void |
1213 | void |
1121 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1214 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1122 | SV * pathname |
1215 | SV * pathname |
1123 | int flags |
1216 | int flags |
… | |
… | |
1338 | |
1431 | |
1339 | REQ_SEND; |
1432 | REQ_SEND; |
1340 | } |
1433 | } |
1341 | |
1434 | |
1342 | void |
1435 | void |
|
|
1436 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1437 | SV * pathname |
|
|
1438 | SV * callback |
|
|
1439 | UV mode |
|
|
1440 | UV dev |
|
|
1441 | PPCODE: |
|
|
1442 | { |
|
|
1443 | dREQ; |
|
|
1444 | |
|
|
1445 | req->type = REQ_MKNOD; |
|
|
1446 | req->data = newSVsv (pathname); |
|
|
1447 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1448 | req->mode = (mode_t)mode; |
|
|
1449 | req->offset = dev; |
|
|
1450 | |
|
|
1451 | REQ_SEND; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | void |
1343 | aio_busy (delay,callback=&PL_sv_undef) |
1455 | aio_busy (delay,callback=&PL_sv_undef) |
1344 | double delay |
1456 | double delay |
1345 | SV * callback |
1457 | SV * callback |
1346 | PPCODE: |
1458 | PPCODE: |
1347 | { |
1459 | { |
… | |
… | |
1378 | req->type = REQ_NOP; |
1490 | req->type = REQ_NOP; |
1379 | |
1491 | |
1380 | REQ_SEND; |
1492 | REQ_SEND; |
1381 | } |
1493 | } |
1382 | |
1494 | |
1383 | void |
1495 | int |
1384 | aioreq_pri (int pri = DEFAULT_PRI) |
1496 | aioreq_pri (int pri = 0) |
1385 | CODE: |
1497 | PROTOTYPE: ;$ |
|
|
1498 | CODE: |
|
|
1499 | RETVAL = next_pri - PRI_BIAS; |
|
|
1500 | if (items > 0) |
|
|
1501 | { |
1386 | if (pri < PRI_MIN) pri = PRI_MIN; |
1502 | if (pri < PRI_MIN) pri = PRI_MIN; |
1387 | if (pri > PRI_MAX) pri = PRI_MAX; |
1503 | if (pri > PRI_MAX) pri = PRI_MAX; |
1388 | next_pri = pri + PRI_BIAS; |
1504 | next_pri = pri + PRI_BIAS; |
|
|
1505 | } |
|
|
1506 | OUTPUT: |
|
|
1507 | RETVAL |
1389 | |
1508 | |
1390 | void |
1509 | void |
1391 | aioreq_nice (int nice = 0) |
1510 | aioreq_nice (int nice = 0) |
1392 | CODE: |
1511 | CODE: |
1393 | nice = next_pri - nice; |
1512 | nice = next_pri - nice; |
1394 | if (nice < PRI_MIN) nice = PRI_MIN; |
1513 | if (nice < PRI_MIN) nice = PRI_MIN; |
1395 | if (nice > PRI_MAX) nice = PRI_MAX; |
1514 | if (nice > PRI_MAX) nice = PRI_MAX; |
1396 | next_pri = nice + PRI_BIAS; |
1515 | next_pri = nice + PRI_BIAS; |
1397 | |
1516 | |
1398 | void |
1517 | void |
1399 | flush () |
1518 | flush () |
1400 | PROTOTYPE: |
1519 | PROTOTYPE: |
1401 | CODE: |
1520 | CODE: |
1402 | while (nreqs) |
1521 | while (nreqs) |
1403 | { |
1522 | { |
1404 | poll_wait (); |
1523 | poll_wait (); |
1405 | poll_cb (); |
1524 | poll_cb (0); |
1406 | } |
1525 | } |
1407 | |
1526 | |
1408 | void |
1527 | void |
1409 | poll() |
1528 | poll() |
1410 | PROTOTYPE: |
1529 | PROTOTYPE: |
1411 | CODE: |
1530 | CODE: |
1412 | if (nreqs) |
1531 | if (nreqs) |
1413 | { |
1532 | { |
1414 | poll_wait (); |
1533 | poll_wait (); |
1415 | poll_cb (); |
1534 | poll_cb (0); |
1416 | } |
1535 | } |
1417 | |
1536 | |
1418 | int |
1537 | int |
1419 | poll_fileno() |
1538 | poll_fileno() |
1420 | PROTOTYPE: |
1539 | PROTOTYPE: |
… | |
… | |
1425 | |
1544 | |
1426 | int |
1545 | int |
1427 | poll_cb(...) |
1546 | poll_cb(...) |
1428 | PROTOTYPE: |
1547 | PROTOTYPE: |
1429 | CODE: |
1548 | CODE: |
1430 | RETVAL = poll_cb (); |
1549 | RETVAL = poll_cb (0); |
|
|
1550 | OUTPUT: |
|
|
1551 | RETVAL |
|
|
1552 | |
|
|
1553 | int |
|
|
1554 | poll_some(int max = 0) |
|
|
1555 | PROTOTYPE: $ |
|
|
1556 | CODE: |
|
|
1557 | RETVAL = poll_cb (max); |
1431 | OUTPUT: |
1558 | OUTPUT: |
1432 | RETVAL |
1559 | RETVAL |
1433 | |
1560 | |
1434 | void |
1561 | void |
1435 | poll_wait() |
1562 | poll_wait() |
… | |
… | |
1444 | CODE: |
1571 | CODE: |
1445 | RETVAL = nreqs; |
1572 | RETVAL = nreqs; |
1446 | OUTPUT: |
1573 | OUTPUT: |
1447 | RETVAL |
1574 | RETVAL |
1448 | |
1575 | |
|
|
1576 | int |
|
|
1577 | nready() |
|
|
1578 | PROTOTYPE: |
|
|
1579 | CODE: |
|
|
1580 | RETVAL = get_nready (); |
|
|
1581 | OUTPUT: |
|
|
1582 | RETVAL |
|
|
1583 | |
|
|
1584 | int |
|
|
1585 | npending() |
|
|
1586 | PROTOTYPE: |
|
|
1587 | CODE: |
|
|
1588 | RETVAL = get_npending (); |
|
|
1589 | OUTPUT: |
|
|
1590 | RETVAL |
|
|
1591 | |
1449 | PROTOTYPES: DISABLE |
1592 | PROTOTYPES: DISABLE |
1450 | |
1593 | |
1451 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1594 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1452 | |
1595 | |
1453 | void |
1596 | void |
… | |
… | |
1495 | } |
1638 | } |
1496 | } |
1639 | } |
1497 | } |
1640 | } |
1498 | |
1641 | |
1499 | void |
1642 | void |
|
|
1643 | cancel_subs (aio_req_ornot req) |
|
|
1644 | CODE: |
|
|
1645 | req_cancel_subs (req); |
|
|
1646 | |
|
|
1647 | void |
1500 | result (aio_req grp, ...) |
1648 | result (aio_req grp, ...) |
1501 | CODE: |
1649 | CODE: |
1502 | { |
1650 | { |
1503 | int i; |
1651 | int i; |
|
|
1652 | AV *av; |
|
|
1653 | |
|
|
1654 | grp->errorno = errno; |
|
|
1655 | |
1504 | AV *av = newAV (); |
1656 | av = newAV (); |
1505 | |
1657 | |
1506 | for (i = 1; i < items; ++i ) |
1658 | for (i = 1; i < items; ++i ) |
1507 | av_push (av, newSVsv (ST (i))); |
1659 | av_push (av, newSVsv (ST (i))); |
1508 | |
1660 | |
1509 | SvREFCNT_dec (grp->data); |
1661 | SvREFCNT_dec (grp->data); |
1510 | grp->data = (SV *)av; |
1662 | grp->data = (SV *)av; |
1511 | } |
1663 | } |
|
|
1664 | |
|
|
1665 | void |
|
|
1666 | errno (aio_req grp, int errorno = errno) |
|
|
1667 | CODE: |
|
|
1668 | grp->errorno = errorno; |
1512 | |
1669 | |
1513 | void |
1670 | void |
1514 | limit (aio_req grp, int limit) |
1671 | limit (aio_req grp, int limit) |
1515 | CODE: |
1672 | CODE: |
1516 | grp->fd2 = limit; |
1673 | grp->fd2 = limit; |