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" |
… | |
… | |
42 | # else |
43 | # else |
43 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
44 | # endif |
45 | # endif |
45 | #endif |
46 | #endif |
46 | |
47 | |
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48 | /* number of seconds after which idle threads exit */ |
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49 | #define IDLE_TIMEOUT 10 |
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50 | |
47 | /* used for struct dirent, AIX doesn't provide it */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
48 | #ifndef NAME_MAX |
52 | #ifndef NAME_MAX |
49 | # define NAME_MAX 4096 |
53 | # define NAME_MAX 4096 |
50 | #endif |
54 | #endif |
51 | |
55 | |
… | |
… | |
58 | # define STACKSIZE 65536 |
62 | # define STACKSIZE 65536 |
59 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
63 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
60 | # define STACKSIZE PTHREAD_STACK_MIN |
64 | # define STACKSIZE PTHREAD_STACK_MIN |
61 | #else |
65 | #else |
62 | # define STACKSIZE 16384 |
66 | # define STACKSIZE 16384 |
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67 | #endif |
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68 | |
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69 | /* wether word reads are potentially non-atomic. |
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70 | * this is conservatice, likely most arches this runs |
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71 | * on have atomic word read/writes. |
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72 | */ |
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73 | #ifndef WORDREAD_UNSAFE |
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74 | # if __i386 || __x86_64 |
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75 | # define WORDREAD_UNSAFE 0 |
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76 | # else |
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77 | # define WORDREAD_UNSAFE 1 |
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78 | # endif |
63 | #endif |
79 | #endif |
64 | |
80 | |
65 | /* buffer size for various temporary buffers */ |
81 | /* buffer size for various temporary buffers */ |
66 | #define AIO_BUFSIZE 65536 |
82 | #define AIO_BUFSIZE 65536 |
67 | |
83 | |
… | |
… | |
79 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
80 | REQ_SENDFILE, |
96 | REQ_SENDFILE, |
81 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
82 | REQ_FSYNC, REQ_FDATASYNC, |
98 | REQ_FSYNC, REQ_FDATASYNC, |
83 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
99 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
84 | REQ_READDIR, |
100 | REQ_MKNOD, REQ_READDIR, |
85 | REQ_LINK, REQ_SYMLINK, |
101 | REQ_LINK, REQ_SYMLINK, |
86 | REQ_GROUP, REQ_NOP, |
102 | REQ_GROUP, REQ_NOP, |
87 | REQ_BUSY, |
103 | REQ_BUSY, |
88 | }; |
104 | }; |
89 | |
105 | |
… | |
… | |
131 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
147 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
132 | }; |
148 | }; |
133 | |
149 | |
134 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
150 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
135 | |
151 | |
136 | static int started, wanted; |
152 | static unsigned int started, idle, wanted; |
137 | static volatile int nreqs; |
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138 | static int respipe [2]; |
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139 | |
153 | |
140 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
154 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
141 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
155 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
142 | #else |
156 | #else |
143 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
157 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
144 | #endif |
158 | #endif |
145 | |
159 | |
146 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
160 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
147 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
161 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
148 | |
162 | |
149 | /* worker threasd management */ |
163 | /* worker threads management */ |
150 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
164 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
151 | |
165 | |
152 | typedef struct worker { |
166 | typedef struct worker { |
153 | /* locked by wrklock */ |
167 | /* locked by wrklock */ |
154 | struct worker *prev, *next; |
168 | struct worker *prev, *next; |
… | |
… | |
184 | wrk->prev->next = wrk->next; |
198 | wrk->prev->next = wrk->next; |
185 | |
199 | |
186 | free (wrk); |
200 | free (wrk); |
187 | } |
201 | } |
188 | |
202 | |
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203 | static volatile unsigned int nreqs, nready, npending; |
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204 | static volatile unsigned int max_idle = 4; |
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205 | static volatile unsigned int max_outstanding = 0xffffffff; |
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206 | static int respipe [2]; |
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207 | |
189 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
208 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
190 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
209 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
191 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
210 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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211 | |
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212 | #if WORDREAD_UNSAFE |
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213 | |
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214 | static unsigned int get_nready () |
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215 | { |
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216 | unsigned int retval; |
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217 | |
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218 | LOCK (reqlock); |
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219 | retval = nready; |
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220 | UNLOCK (reqlock); |
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221 | |
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222 | return retval; |
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223 | } |
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224 | |
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225 | static unsigned int get_npending () |
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226 | { |
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227 | unsigned int retval; |
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228 | |
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229 | LOCK (reslock); |
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230 | retval = npending; |
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231 | UNLOCK (reslock); |
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232 | |
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233 | return retval; |
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234 | } |
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235 | |
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236 | #else |
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237 | |
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238 | # define get_nready() nready |
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239 | # define get_npending() npending |
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240 | |
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241 | #endif |
192 | |
242 | |
193 | /* |
243 | /* |
194 | * a somewhat faster data structure might be nice, but |
244 | * a somewhat faster data structure might be nice, but |
195 | * with 8 priorities this actually needs <20 insns |
245 | * with 8 priorities this actually needs <20 insns |
196 | * per shift, the most expensive operation. |
246 | * per shift, the most expensive operation. |
… | |
… | |
242 | } |
292 | } |
243 | |
293 | |
244 | abort (); |
294 | abort (); |
245 | } |
295 | } |
246 | |
296 | |
247 | static int poll_cb (); |
297 | static int poll_cb (int max); |
248 | static void req_invoke (aio_req req); |
298 | static void req_invoke (aio_req req); |
249 | static void req_free (aio_req req); |
299 | static void req_free (aio_req req); |
250 | static void req_cancel (aio_req req); |
300 | static void req_cancel (aio_req req); |
251 | |
301 | |
252 | /* must be called at most once */ |
302 | /* must be called at most once */ |
… | |
… | |
317 | req_invoke (grp); |
367 | req_invoke (grp); |
318 | req_free (grp); |
368 | req_free (grp); |
319 | } |
369 | } |
320 | } |
370 | } |
321 | |
371 | |
322 | static void poll_wait () |
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323 | { |
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324 | fd_set rfd; |
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325 | |
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326 | while (nreqs) |
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327 | { |
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328 | int size; |
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329 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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330 | LOCK (reslock); |
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331 | #endif |
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332 | size = res_queue.size; |
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333 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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334 | UNLOCK (reslock); |
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335 | #endif |
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336 | |
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337 | if (size) |
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338 | return; |
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339 | |
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340 | FD_ZERO(&rfd); |
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341 | FD_SET(respipe [0], &rfd); |
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342 | |
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343 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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344 | } |
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345 | } |
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346 | |
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347 | static void req_invoke (aio_req req) |
372 | static void req_invoke (aio_req req) |
348 | { |
373 | { |
349 | dSP; |
374 | dSP; |
350 | |
375 | |
351 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
376 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
352 | { |
377 | { |
353 | errno = req->errorno; |
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354 | |
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355 | ENTER; |
378 | ENTER; |
356 | SAVETMPS; |
379 | SAVETMPS; |
357 | PUSHMARK (SP); |
380 | PUSHMARK (SP); |
358 | EXTEND (SP, 1); |
381 | EXTEND (SP, 1); |
359 | |
382 | |
… | |
… | |
424 | default: |
447 | default: |
425 | PUSHs (sv_2mortal (newSViv (req->result))); |
448 | PUSHs (sv_2mortal (newSViv (req->result))); |
426 | break; |
449 | break; |
427 | } |
450 | } |
428 | |
451 | |
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452 | errno = req->errorno; |
429 | |
453 | |
430 | PUTBACK; |
454 | PUTBACK; |
431 | call_sv (req->callback, G_VOID | G_EVAL); |
455 | call_sv (req->callback, G_VOID | G_EVAL); |
432 | SPAGAIN; |
456 | SPAGAIN; |
433 | |
457 | |
… | |
… | |
495 | req->flags |= FLAG_CANCELLED; |
519 | req->flags |= FLAG_CANCELLED; |
496 | |
520 | |
497 | req_cancel_subs (req); |
521 | req_cancel_subs (req); |
498 | } |
522 | } |
499 | |
523 | |
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524 | static void *aio_proc(void *arg); |
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525 | |
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526 | static void start_thread (void) |
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527 | { |
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528 | sigset_t fullsigset, oldsigset; |
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529 | pthread_attr_t attr; |
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530 | |
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531 | worker *wrk = calloc (1, sizeof (worker)); |
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532 | |
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533 | if (!wrk) |
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534 | croak ("unable to allocate worker thread data"); |
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535 | |
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536 | pthread_attr_init (&attr); |
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537 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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538 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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539 | #ifdef PTHREAD_SCOPE_PROCESS |
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540 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
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541 | #endif |
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542 | |
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543 | sigfillset (&fullsigset); |
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544 | |
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545 | LOCK (wrklock); |
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546 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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547 | |
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548 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
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549 | { |
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550 | wrk->prev = &wrk_first; |
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551 | wrk->next = wrk_first.next; |
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552 | wrk_first.next->prev = wrk; |
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553 | wrk_first.next = wrk; |
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554 | ++started; |
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555 | } |
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556 | else |
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557 | free (wrk); |
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558 | |
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559 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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560 | UNLOCK (wrklock); |
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561 | } |
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562 | |
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563 | static void maybe_start_thread () |
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564 | { |
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565 | if (started >= wanted) |
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566 | return; |
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567 | |
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568 | /* todo: maybe use idle here, but might be less exact */ |
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569 | if ((int)nready <= (int)started - (int)(nreqs - get_nready () - get_npending ())) |
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570 | return; |
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571 | |
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572 | start_thread (); |
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573 | } |
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574 | |
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575 | static void req_send (aio_req req) |
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576 | { |
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577 | ++nreqs; |
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578 | |
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579 | LOCK (reqlock); |
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580 | ++nready; |
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581 | reqq_push (&req_queue, req); |
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582 | pthread_cond_signal (&reqwait); |
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583 | UNLOCK (reqlock); |
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584 | |
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585 | maybe_start_thread (); |
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586 | } |
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587 | |
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588 | static void end_thread (void) |
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589 | { |
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590 | aio_req req; |
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591 | |
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592 | Newz (0, req, 1, aio_cb); |
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593 | |
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594 | req->type = REQ_QUIT; |
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595 | req->pri = PRI_MAX + PRI_BIAS; |
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596 | |
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597 | LOCK (reqlock); |
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598 | reqq_push (&req_queue, req); |
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599 | pthread_cond_signal (&reqwait); |
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600 | UNLOCK (reqlock); |
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601 | |
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602 | LOCK (wrklock); |
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603 | --started; |
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604 | UNLOCK (wrklock); |
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605 | } |
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606 | |
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607 | static void min_parallel (int nthreads) |
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608 | { |
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609 | if (wanted < nthreads) |
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610 | wanted = nthreads; |
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611 | } |
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612 | |
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613 | static void max_parallel (int nthreads) |
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614 | { |
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615 | if (wanted > nthreads) |
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616 | wanted = nthreads; |
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617 | |
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618 | while (started > wanted) |
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619 | end_thread (); |
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620 | } |
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621 | |
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622 | static void poll_wait () |
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623 | { |
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624 | fd_set rfd; |
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625 | |
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626 | while (nreqs) |
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627 | { |
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628 | int size; |
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629 | if (WORDREAD_UNSAFE) LOCK (reslock); |
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630 | size = res_queue.size; |
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631 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
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632 | |
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633 | if (size) |
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634 | return; |
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635 | |
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636 | maybe_start_thread (); |
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637 | |
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638 | FD_ZERO(&rfd); |
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639 | FD_SET(respipe [0], &rfd); |
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640 | |
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641 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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642 | } |
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643 | } |
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644 | |
500 | static int poll_cb () |
645 | static int poll_cb (int max) |
501 | { |
646 | { |
502 | dSP; |
647 | dSP; |
503 | int count = 0; |
648 | int count = 0; |
504 | int do_croak = 0; |
649 | int do_croak = 0; |
505 | aio_req req; |
650 | aio_req req; |
506 | |
651 | |
507 | for (;;) |
652 | for (;;) |
508 | { |
653 | { |
509 | LOCK (reslock); |
654 | while (max <= 0 || count < max) |
510 | req = reqq_shift (&res_queue); |
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511 | |
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512 | if (req) |
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513 | { |
655 | { |
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656 | maybe_start_thread (); |
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657 | |
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658 | LOCK (reslock); |
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659 | req = reqq_shift (&res_queue); |
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660 | |
514 | if (!res_queue.size) |
661 | if (req) |
515 | { |
662 | { |
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663 | --npending; |
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664 | |
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665 | if (!res_queue.size) |
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666 | { |
516 | /* read any signals sent by the worker threads */ |
667 | /* read any signals sent by the worker threads */ |
517 | char buf [32]; |
668 | char buf [32]; |
518 | while (read (respipe [0], buf, 32) == 32) |
669 | while (read (respipe [0], buf, 32) == 32) |
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670 | ; |
519 | ; |
671 | } |
520 | } |
672 | } |
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673 | |
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674 | UNLOCK (reslock); |
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675 | |
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676 | if (!req) |
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677 | break; |
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678 | |
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679 | --nreqs; |
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680 | |
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681 | if (req->type == REQ_GROUP && req->length) |
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682 | { |
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683 | req->fd = 1; /* mark request as delayed */ |
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684 | continue; |
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685 | } |
|
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686 | else |
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687 | { |
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688 | if (req->type == REQ_READ) |
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689 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
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690 | |
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691 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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692 | SvREADONLY_off (req->data); |
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693 | |
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694 | if (req->statdata) |
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695 | { |
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696 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
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697 | PL_laststatval = req->result; |
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698 | PL_statcache = *(req->statdata); |
|
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699 | } |
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700 | |
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701 | req_invoke (req); |
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702 | |
|
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703 | count++; |
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704 | } |
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705 | |
|
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706 | req_free (req); |
521 | } |
707 | } |
522 | |
708 | |
523 | UNLOCK (reslock); |
709 | if (nreqs <= max_outstanding) |
524 | |
|
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525 | if (!req) |
|
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526 | break; |
710 | break; |
527 | |
711 | |
528 | --nreqs; |
712 | poll_wait (); |
529 | |
713 | |
530 | if (req->type == REQ_QUIT) |
714 | max = 0; |
531 | started--; |
|
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532 | else if (req->type == REQ_GROUP && req->length) |
|
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533 | { |
|
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534 | req->fd = 1; /* mark request as delayed */ |
|
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535 | continue; |
|
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536 | } |
|
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537 | else |
|
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538 | { |
|
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539 | if (req->type == REQ_READ) |
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540 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
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541 | |
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542 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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543 | SvREADONLY_off (req->data); |
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544 | |
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545 | if (req->statdata) |
|
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546 | { |
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547 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
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548 | PL_laststatval = req->result; |
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549 | PL_statcache = *(req->statdata); |
|
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550 | } |
|
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551 | |
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552 | req_invoke (req); |
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553 | |
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554 | count++; |
|
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555 | } |
|
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556 | |
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557 | req_free (req); |
|
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558 | } |
715 | } |
559 | |
716 | |
560 | return count; |
717 | return count; |
561 | } |
|
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562 | |
|
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563 | static void *aio_proc(void *arg); |
|
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564 | |
|
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565 | static void start_thread (void) |
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566 | { |
|
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567 | sigset_t fullsigset, oldsigset; |
|
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568 | pthread_attr_t attr; |
|
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569 | |
|
|
570 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
571 | |
|
|
572 | if (!wrk) |
|
|
573 | croak ("unable to allocate worker thread data"); |
|
|
574 | |
|
|
575 | pthread_attr_init (&attr); |
|
|
576 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
577 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
578 | |
|
|
579 | sigfillset (&fullsigset); |
|
|
580 | |
|
|
581 | LOCK (wrklock); |
|
|
582 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
583 | |
|
|
584 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
585 | { |
|
|
586 | wrk->prev = &wrk_first; |
|
|
587 | wrk->next = wrk_first.next; |
|
|
588 | wrk_first.next->prev = wrk; |
|
|
589 | wrk_first.next = wrk; |
|
|
590 | started++; |
|
|
591 | } |
|
|
592 | else |
|
|
593 | free (wrk); |
|
|
594 | |
|
|
595 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
596 | UNLOCK (wrklock); |
|
|
597 | } |
|
|
598 | |
|
|
599 | static void req_send (aio_req req) |
|
|
600 | { |
|
|
601 | while (started < wanted && nreqs >= started) |
|
|
602 | start_thread (); |
|
|
603 | |
|
|
604 | ++nreqs; |
|
|
605 | |
|
|
606 | LOCK (reqlock); |
|
|
607 | reqq_push (&req_queue, req); |
|
|
608 | pthread_cond_signal (&reqwait); |
|
|
609 | UNLOCK (reqlock); |
|
|
610 | } |
|
|
611 | |
|
|
612 | static void end_thread (void) |
|
|
613 | { |
|
|
614 | aio_req req; |
|
|
615 | |
|
|
616 | Newz (0, req, 1, aio_cb); |
|
|
617 | |
|
|
618 | req->type = REQ_QUIT; |
|
|
619 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
620 | |
|
|
621 | req_send (req); |
|
|
622 | } |
|
|
623 | |
|
|
624 | static void min_parallel (int nthreads) |
|
|
625 | { |
|
|
626 | if (wanted < nthreads) |
|
|
627 | wanted = nthreads; |
|
|
628 | } |
|
|
629 | |
|
|
630 | static void max_parallel (int nthreads) |
|
|
631 | { |
|
|
632 | int cur = started; |
|
|
633 | |
|
|
634 | if (wanted > nthreads) |
|
|
635 | wanted = nthreads; |
|
|
636 | |
|
|
637 | while (cur > wanted) |
|
|
638 | { |
|
|
639 | end_thread (); |
|
|
640 | cur--; |
|
|
641 | } |
|
|
642 | |
|
|
643 | while (started > wanted) |
|
|
644 | { |
|
|
645 | poll_wait (); |
|
|
646 | poll_cb (); |
|
|
647 | } |
|
|
648 | } |
718 | } |
649 | |
719 | |
650 | static void create_pipe () |
720 | static void create_pipe () |
651 | { |
721 | { |
652 | if (pipe (respipe)) |
722 | if (pipe (respipe)) |
… | |
… | |
779 | { |
849 | { |
780 | off_t sbytes; |
850 | off_t sbytes; |
781 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
851 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
782 | |
852 | |
783 | if (res < 0 && sbytes) |
853 | if (res < 0 && sbytes) |
784 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
854 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
785 | res = sbytes; |
855 | res = sbytes; |
786 | } |
856 | } |
787 | |
857 | |
788 | # elif __hpux |
858 | # elif __hpux |
789 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
859 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
869 | int errorno; |
939 | int errorno; |
870 | |
940 | |
871 | LOCK (wrklock); |
941 | LOCK (wrklock); |
872 | self->dirp = dirp = opendir (req->dataptr); |
942 | self->dirp = dirp = opendir (req->dataptr); |
873 | self->dbuf = u = malloc (sizeof (*u)); |
943 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
944 | req->data2ptr = names = malloc (memlen); |
874 | UNLOCK (wrklock); |
945 | UNLOCK (wrklock); |
875 | |
|
|
876 | req->data2ptr = names = malloc (memlen); |
|
|
877 | |
946 | |
878 | if (dirp && u && names) |
947 | if (dirp && u && names) |
879 | for (;;) |
948 | for (;;) |
880 | { |
949 | { |
881 | errno = 0; |
950 | errno = 0; |
… | |
… | |
917 | /*****************************************************************************/ |
986 | /*****************************************************************************/ |
918 | |
987 | |
919 | static void *aio_proc (void *thr_arg) |
988 | static void *aio_proc (void *thr_arg) |
920 | { |
989 | { |
921 | aio_req req; |
990 | aio_req req; |
922 | int type; |
991 | struct timespec ts; |
923 | worker *self = (worker *)thr_arg; |
992 | worker *self = (worker *)thr_arg; |
924 | |
993 | |
925 | do |
994 | /* try to distribute timeouts somewhat evenly */ |
|
|
995 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
996 | * (1000000000UL / 1024UL); |
|
|
997 | |
|
|
998 | for (;;) |
926 | { |
999 | { |
|
|
1000 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1001 | |
927 | LOCK (reqlock); |
1002 | LOCK (reqlock); |
928 | |
1003 | |
929 | for (;;) |
1004 | for (;;) |
930 | { |
1005 | { |
931 | self->req = req = reqq_shift (&req_queue); |
1006 | self->req = req = reqq_shift (&req_queue); |
932 | |
1007 | |
933 | if (req) |
1008 | if (req) |
934 | break; |
1009 | break; |
935 | |
1010 | |
|
|
1011 | ++idle; |
|
|
1012 | |
|
|
1013 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1014 | == ETIMEDOUT) |
|
|
1015 | { |
|
|
1016 | if (idle > max_idle) |
|
|
1017 | { |
|
|
1018 | --idle; |
|
|
1019 | UNLOCK (reqlock); |
|
|
1020 | LOCK (wrklock); |
|
|
1021 | --started; |
|
|
1022 | UNLOCK (wrklock); |
|
|
1023 | goto quit; |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | /* we are allowed to idle, so do so without any timeout */ |
936 | pthread_cond_wait (&reqwait, &reqlock); |
1027 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1028 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | --idle; |
937 | } |
1032 | } |
|
|
1033 | |
|
|
1034 | --nready; |
938 | |
1035 | |
939 | UNLOCK (reqlock); |
1036 | UNLOCK (reqlock); |
940 | |
1037 | |
941 | errno = 0; /* strictly unnecessary */ |
1038 | errno = 0; /* strictly unnecessary */ |
942 | type = req->type; /* remember type for QUIT check */ |
|
|
943 | |
1039 | |
944 | if (!(req->flags & FLAG_CANCELLED)) |
1040 | if (!(req->flags & FLAG_CANCELLED)) |
945 | switch (type) |
1041 | switch (req->type) |
946 | { |
1042 | { |
947 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1043 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
948 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1044 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
949 | |
1045 | |
950 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1046 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
959 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1055 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
960 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1056 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
961 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1057 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1058 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1059 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1060 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
964 | |
1061 | |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1062 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1063 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
1064 | case REQ_READDIR: scandir_ (req, self); break; |
968 | |
1065 | |
… | |
… | |
976 | req->result = select (0, 0, 0, 0, &tv); |
1073 | req->result = select (0, 0, 0, 0, &tv); |
977 | } |
1074 | } |
978 | |
1075 | |
979 | case REQ_GROUP: |
1076 | case REQ_GROUP: |
980 | case REQ_NOP: |
1077 | case REQ_NOP: |
|
|
1078 | break; |
|
|
1079 | |
981 | case REQ_QUIT: |
1080 | case REQ_QUIT: |
982 | break; |
1081 | goto quit; |
983 | |
1082 | |
984 | default: |
1083 | default: |
985 | req->result = ENOSYS; |
1084 | req->result = ENOSYS; |
986 | break; |
1085 | break; |
987 | } |
1086 | } |
988 | |
1087 | |
989 | req->errorno = errno; |
1088 | req->errorno = errno; |
990 | |
1089 | |
991 | LOCK (reslock); |
1090 | LOCK (reslock); |
992 | |
1091 | |
|
|
1092 | ++npending; |
|
|
1093 | |
993 | if (!reqq_push (&res_queue, req)) |
1094 | if (!reqq_push (&res_queue, req)) |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
1095 | /* write a dummy byte to the pipe so fh becomes ready */ |
995 | write (respipe [1], &respipe, 1); |
1096 | write (respipe [1], &respipe, 1); |
996 | |
1097 | |
997 | self->req = 0; |
1098 | self->req = 0; |
998 | worker_clear (self); |
1099 | worker_clear (self); |
999 | |
1100 | |
1000 | UNLOCK (reslock); |
1101 | UNLOCK (reslock); |
1001 | } |
1102 | } |
1002 | while (type != REQ_QUIT); |
|
|
1003 | |
1103 | |
|
|
1104 | quit: |
1004 | LOCK (wrklock); |
1105 | LOCK (wrklock); |
1005 | worker_free (self); |
1106 | worker_free (self); |
1006 | UNLOCK (wrklock); |
1107 | UNLOCK (wrklock); |
1007 | |
1108 | |
1008 | return 0; |
1109 | return 0; |
… | |
… | |
1055 | |
1156 | |
1056 | worker_clear (wrk); |
1157 | worker_clear (wrk); |
1057 | worker_free (wrk); |
1158 | worker_free (wrk); |
1058 | } |
1159 | } |
1059 | |
1160 | |
1060 | started = 0; |
1161 | started = 0; |
|
|
1162 | idle = 0; |
1061 | nreqs = 0; |
1163 | nreqs = 0; |
|
|
1164 | nready = 0; |
|
|
1165 | npending = 0; |
1062 | |
1166 | |
1063 | close (respipe [0]); |
1167 | close (respipe [0]); |
1064 | close (respipe [1]); |
1168 | close (respipe [1]); |
1065 | create_pipe (); |
1169 | create_pipe (); |
1066 | |
1170 | |
… | |
… | |
1093 | PROTOTYPES: ENABLE |
1197 | PROTOTYPES: ENABLE |
1094 | |
1198 | |
1095 | BOOT: |
1199 | BOOT: |
1096 | { |
1200 | { |
1097 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1201 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1202 | |
1098 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1203 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1099 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1204 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1100 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1205 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1206 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1207 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1208 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
1101 | |
1209 | |
1102 | create_pipe (); |
1210 | create_pipe (); |
1103 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1211 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1104 | } |
1212 | } |
1105 | |
1213 | |
1106 | void |
1214 | void |
1107 | min_parallel (nthreads) |
1215 | min_parallel (int nthreads) |
1108 | int nthreads |
|
|
1109 | PROTOTYPE: $ |
1216 | PROTOTYPE: $ |
1110 | |
1217 | |
1111 | void |
1218 | void |
1112 | max_parallel (nthreads) |
1219 | max_parallel (int nthreads) |
1113 | int nthreads |
|
|
1114 | PROTOTYPE: $ |
1220 | PROTOTYPE: $ |
|
|
1221 | |
|
|
1222 | int |
|
|
1223 | max_outstanding (int maxreqs) |
|
|
1224 | PROTOTYPE: $ |
|
|
1225 | CODE: |
|
|
1226 | RETVAL = max_outstanding; |
|
|
1227 | max_outstanding = maxreqs; |
|
|
1228 | OUTPUT: |
|
|
1229 | RETVAL |
1115 | |
1230 | |
1116 | void |
1231 | void |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1232 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1118 | SV * pathname |
1233 | SV * pathname |
1119 | int flags |
1234 | int flags |
… | |
… | |
1334 | |
1449 | |
1335 | REQ_SEND; |
1450 | REQ_SEND; |
1336 | } |
1451 | } |
1337 | |
1452 | |
1338 | void |
1453 | void |
|
|
1454 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1455 | SV * pathname |
|
|
1456 | SV * callback |
|
|
1457 | UV mode |
|
|
1458 | UV dev |
|
|
1459 | PPCODE: |
|
|
1460 | { |
|
|
1461 | dREQ; |
|
|
1462 | |
|
|
1463 | req->type = REQ_MKNOD; |
|
|
1464 | req->data = newSVsv (pathname); |
|
|
1465 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1466 | req->mode = (mode_t)mode; |
|
|
1467 | req->offset = dev; |
|
|
1468 | |
|
|
1469 | REQ_SEND; |
|
|
1470 | } |
|
|
1471 | |
|
|
1472 | void |
1339 | aio_busy (delay,callback=&PL_sv_undef) |
1473 | aio_busy (delay,callback=&PL_sv_undef) |
1340 | double delay |
1474 | double delay |
1341 | SV * callback |
1475 | SV * callback |
1342 | PPCODE: |
1476 | PPCODE: |
1343 | { |
1477 | { |
… | |
… | |
1374 | req->type = REQ_NOP; |
1508 | req->type = REQ_NOP; |
1375 | |
1509 | |
1376 | REQ_SEND; |
1510 | REQ_SEND; |
1377 | } |
1511 | } |
1378 | |
1512 | |
1379 | void |
1513 | int |
1380 | aioreq_pri (int pri = DEFAULT_PRI) |
1514 | aioreq_pri (int pri = 0) |
1381 | CODE: |
1515 | PROTOTYPE: ;$ |
|
|
1516 | CODE: |
|
|
1517 | RETVAL = next_pri - PRI_BIAS; |
|
|
1518 | if (items > 0) |
|
|
1519 | { |
1382 | if (pri < PRI_MIN) pri = PRI_MIN; |
1520 | if (pri < PRI_MIN) pri = PRI_MIN; |
1383 | if (pri > PRI_MAX) pri = PRI_MAX; |
1521 | if (pri > PRI_MAX) pri = PRI_MAX; |
1384 | next_pri = pri + PRI_BIAS; |
1522 | next_pri = pri + PRI_BIAS; |
|
|
1523 | } |
|
|
1524 | OUTPUT: |
|
|
1525 | RETVAL |
1385 | |
1526 | |
1386 | void |
1527 | void |
1387 | aioreq_nice (int nice = 0) |
1528 | aioreq_nice (int nice = 0) |
1388 | CODE: |
1529 | CODE: |
1389 | nice = next_pri - nice; |
1530 | nice = next_pri - nice; |
1390 | if (nice < PRI_MIN) nice = PRI_MIN; |
1531 | if (nice < PRI_MIN) nice = PRI_MIN; |
1391 | if (nice > PRI_MAX) nice = PRI_MAX; |
1532 | if (nice > PRI_MAX) nice = PRI_MAX; |
1392 | next_pri = nice + PRI_BIAS; |
1533 | next_pri = nice + PRI_BIAS; |
1393 | |
1534 | |
1394 | void |
1535 | void |
1395 | flush () |
1536 | flush () |
1396 | PROTOTYPE: |
1537 | PROTOTYPE: |
1397 | CODE: |
1538 | CODE: |
1398 | while (nreqs) |
1539 | while (nreqs) |
1399 | { |
1540 | { |
1400 | poll_wait (); |
1541 | poll_wait (); |
1401 | poll_cb (); |
1542 | poll_cb (0); |
1402 | } |
1543 | } |
1403 | |
1544 | |
1404 | void |
1545 | void |
1405 | poll() |
1546 | poll() |
1406 | PROTOTYPE: |
1547 | PROTOTYPE: |
1407 | CODE: |
1548 | CODE: |
1408 | if (nreqs) |
1549 | if (nreqs) |
1409 | { |
1550 | { |
1410 | poll_wait (); |
1551 | poll_wait (); |
1411 | poll_cb (); |
1552 | poll_cb (0); |
1412 | } |
1553 | } |
1413 | |
1554 | |
1414 | int |
1555 | int |
1415 | poll_fileno() |
1556 | poll_fileno() |
1416 | PROTOTYPE: |
1557 | PROTOTYPE: |
… | |
… | |
1421 | |
1562 | |
1422 | int |
1563 | int |
1423 | poll_cb(...) |
1564 | poll_cb(...) |
1424 | PROTOTYPE: |
1565 | PROTOTYPE: |
1425 | CODE: |
1566 | CODE: |
1426 | RETVAL = poll_cb (); |
1567 | RETVAL = poll_cb (0); |
|
|
1568 | OUTPUT: |
|
|
1569 | RETVAL |
|
|
1570 | |
|
|
1571 | int |
|
|
1572 | poll_some(int max = 0) |
|
|
1573 | PROTOTYPE: $ |
|
|
1574 | CODE: |
|
|
1575 | RETVAL = poll_cb (max); |
1427 | OUTPUT: |
1576 | OUTPUT: |
1428 | RETVAL |
1577 | RETVAL |
1429 | |
1578 | |
1430 | void |
1579 | void |
1431 | poll_wait() |
1580 | poll_wait() |
… | |
… | |
1440 | CODE: |
1589 | CODE: |
1441 | RETVAL = nreqs; |
1590 | RETVAL = nreqs; |
1442 | OUTPUT: |
1591 | OUTPUT: |
1443 | RETVAL |
1592 | RETVAL |
1444 | |
1593 | |
|
|
1594 | int |
|
|
1595 | nready() |
|
|
1596 | PROTOTYPE: |
|
|
1597 | CODE: |
|
|
1598 | RETVAL = get_nready (); |
|
|
1599 | OUTPUT: |
|
|
1600 | RETVAL |
|
|
1601 | |
|
|
1602 | int |
|
|
1603 | npending() |
|
|
1604 | PROTOTYPE: |
|
|
1605 | CODE: |
|
|
1606 | RETVAL = get_npending (); |
|
|
1607 | OUTPUT: |
|
|
1608 | RETVAL |
|
|
1609 | |
1445 | PROTOTYPES: DISABLE |
1610 | PROTOTYPES: DISABLE |
1446 | |
1611 | |
1447 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1612 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1448 | |
1613 | |
1449 | void |
1614 | void |
… | |
… | |
1500 | void |
1665 | void |
1501 | result (aio_req grp, ...) |
1666 | result (aio_req grp, ...) |
1502 | CODE: |
1667 | CODE: |
1503 | { |
1668 | { |
1504 | int i; |
1669 | int i; |
|
|
1670 | AV *av; |
|
|
1671 | |
|
|
1672 | grp->errorno = errno; |
|
|
1673 | |
1505 | AV *av = newAV (); |
1674 | av = newAV (); |
1506 | |
1675 | |
1507 | for (i = 1; i < items; ++i ) |
1676 | for (i = 1; i < items; ++i ) |
1508 | av_push (av, newSVsv (ST (i))); |
1677 | av_push (av, newSVsv (ST (i))); |
1509 | |
1678 | |
1510 | SvREFCNT_dec (grp->data); |
1679 | SvREFCNT_dec (grp->data); |
1511 | grp->data = (SV *)av; |
1680 | grp->data = (SV *)av; |
1512 | } |
1681 | } |
|
|
1682 | |
|
|
1683 | void |
|
|
1684 | errno (aio_req grp, int errorno = errno) |
|
|
1685 | CODE: |
|
|
1686 | grp->errorno = errorno; |
1513 | |
1687 | |
1514 | void |
1688 | void |
1515 | limit (aio_req grp, int limit) |
1689 | limit (aio_req grp, int limit) |
1516 | CODE: |
1690 | CODE: |
1517 | grp->fd2 = limit; |
1691 | grp->fd2 = limit; |