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); |
245 | static void req_cancel (aio_req req); |
296 | static void req_cancel (aio_req req); |
246 | |
297 | |
247 | /* must be called at most once */ |
298 | /* must be called at most once */ |
… | |
… | |
312 | req_invoke (grp); |
363 | req_invoke (grp); |
313 | req_free (grp); |
364 | req_free (grp); |
314 | } |
365 | } |
315 | } |
366 | } |
316 | |
367 | |
317 | static void poll_wait () |
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318 | { |
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319 | fd_set rfd; |
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320 | |
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321 | while (nreqs) |
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322 | { |
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323 | int size; |
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324 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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325 | LOCK (reslock); |
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326 | #endif |
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327 | size = res_queue.size; |
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328 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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329 | UNLOCK (reslock); |
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330 | #endif |
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331 | |
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332 | if (size) |
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333 | return; |
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334 | |
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335 | FD_ZERO(&rfd); |
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336 | FD_SET(respipe [0], &rfd); |
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337 | |
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338 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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339 | } |
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340 | } |
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341 | |
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342 | static void req_invoke (aio_req req) |
368 | static void req_invoke (aio_req req) |
343 | { |
369 | { |
344 | dSP; |
370 | dSP; |
345 | |
371 | |
346 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
372 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
347 | { |
373 | { |
348 | errno = req->errorno; |
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349 | |
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350 | ENTER; |
374 | ENTER; |
351 | SAVETMPS; |
375 | SAVETMPS; |
352 | PUSHMARK (SP); |
376 | PUSHMARK (SP); |
353 | EXTEND (SP, 1); |
377 | EXTEND (SP, 1); |
354 | |
378 | |
… | |
… | |
419 | default: |
443 | default: |
420 | PUSHs (sv_2mortal (newSViv (req->result))); |
444 | PUSHs (sv_2mortal (newSViv (req->result))); |
421 | break; |
445 | break; |
422 | } |
446 | } |
423 | |
447 | |
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|
448 | errno = req->errorno; |
424 | |
449 | |
425 | PUTBACK; |
450 | PUTBACK; |
426 | call_sv (req->callback, G_VOID | G_EVAL); |
451 | call_sv (req->callback, G_VOID | G_EVAL); |
427 | SPAGAIN; |
452 | SPAGAIN; |
428 | |
453 | |
… | |
… | |
490 | req->flags |= FLAG_CANCELLED; |
515 | req->flags |= FLAG_CANCELLED; |
491 | |
516 | |
492 | req_cancel_subs (req); |
517 | req_cancel_subs (req); |
493 | } |
518 | } |
494 | |
519 | |
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520 | static void *aio_proc(void *arg); |
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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) |
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545 | { |
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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); |
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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 | LOCK (reqlock); |
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616 | reqq_push (&req_queue, req); |
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617 | pthread_cond_signal (&reqwait); |
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618 | UNLOCK (reqlock); |
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619 | |
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620 | LOCK (wrklock); |
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621 | --started; |
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622 | UNLOCK (wrklock); |
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623 | } |
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624 | |
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625 | static void min_parallel (int nthreads) |
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626 | { |
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627 | if (wanted < nthreads) |
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628 | wanted = nthreads; |
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629 | } |
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630 | |
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631 | static void max_parallel (int nthreads) |
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632 | { |
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633 | if (wanted > nthreads) |
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634 | wanted = nthreads; |
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635 | |
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636 | while (started > wanted) |
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637 | end_thread (); |
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638 | } |
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639 | |
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640 | static void poll_wait () |
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641 | { |
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642 | fd_set rfd; |
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643 | |
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644 | while (nreqs) |
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645 | { |
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646 | int size; |
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647 | if (WORDREAD_UNSAFE) LOCK (reslock); |
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648 | size = res_queue.size; |
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649 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
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650 | |
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651 | if (size) |
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652 | return; |
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653 | |
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654 | maybe_start_thread (); |
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655 | |
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656 | FD_ZERO(&rfd); |
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657 | FD_SET(respipe [0], &rfd); |
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658 | |
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659 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
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660 | } |
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661 | } |
|
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662 | |
495 | static int poll_cb () |
663 | static int poll_cb (int max) |
496 | { |
664 | { |
497 | dSP; |
665 | dSP; |
498 | int count = 0; |
666 | int count = 0; |
499 | int do_croak = 0; |
667 | int do_croak = 0; |
500 | aio_req req; |
668 | aio_req req; |
501 | |
669 | |
502 | for (;;) |
670 | for (;;) |
503 | { |
671 | { |
504 | LOCK (reslock); |
672 | while (max <= 0 || count < max) |
505 | req = reqq_shift (&res_queue); |
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506 | |
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507 | if (req) |
|
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508 | { |
673 | { |
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674 | maybe_start_thread (); |
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675 | |
|
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676 | LOCK (reslock); |
|
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677 | req = reqq_shift (&res_queue); |
|
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678 | |
509 | if (!res_queue.size) |
679 | if (req) |
510 | { |
680 | { |
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681 | --npending; |
|
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682 | |
|
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683 | if (!res_queue.size) |
|
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684 | { |
511 | /* read any signals sent by the worker threads */ |
685 | /* read any signals sent by the worker threads */ |
512 | char buf [32]; |
686 | char buf [32]; |
513 | while (read (respipe [0], buf, 32) == 32) |
687 | while (read (respipe [0], buf, 32) == 32) |
|
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688 | ; |
514 | ; |
689 | } |
515 | } |
690 | } |
|
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691 | |
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692 | UNLOCK (reslock); |
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693 | |
|
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694 | if (!req) |
|
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695 | break; |
|
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696 | |
|
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697 | --nreqs; |
|
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698 | |
|
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699 | if (req->type == REQ_GROUP && req->length) |
|
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700 | { |
|
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701 | req->fd = 1; /* mark request as delayed */ |
|
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702 | continue; |
|
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703 | } |
|
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704 | else |
|
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705 | { |
|
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706 | if (req->type == REQ_READ) |
|
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707 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
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708 | |
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709 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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710 | SvREADONLY_off (req->data); |
|
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711 | |
|
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712 | if (req->statdata) |
|
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713 | { |
|
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714 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
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715 | PL_laststatval = req->result; |
|
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716 | PL_statcache = *(req->statdata); |
|
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717 | } |
|
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718 | |
|
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719 | req_invoke (req); |
|
|
720 | |
|
|
721 | count++; |
|
|
722 | } |
|
|
723 | |
|
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724 | req_free (req); |
516 | } |
725 | } |
517 | |
726 | |
518 | UNLOCK (reslock); |
727 | if (nreqs <= max_outstanding) |
519 | |
|
|
520 | if (!req) |
|
|
521 | break; |
728 | break; |
522 | |
729 | |
523 | --nreqs; |
730 | poll_wait (); |
524 | |
731 | |
525 | if (req->type == REQ_QUIT) |
732 | max = 0; |
526 | started--; |
|
|
527 | else if (req->type == REQ_GROUP && req->length) |
|
|
528 | { |
|
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529 | req->fd = 1; /* mark request as delayed */ |
|
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530 | continue; |
|
|
531 | } |
|
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532 | else |
|
|
533 | { |
|
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534 | if (req->type == REQ_READ) |
|
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535 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
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536 | |
|
|
537 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
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538 | SvREADONLY_off (req->data); |
|
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539 | |
|
|
540 | if (req->statdata) |
|
|
541 | { |
|
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542 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
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543 | PL_laststatval = req->result; |
|
|
544 | PL_statcache = *(req->statdata); |
|
|
545 | } |
|
|
546 | |
|
|
547 | req_invoke (req); |
|
|
548 | |
|
|
549 | count++; |
|
|
550 | } |
|
|
551 | |
|
|
552 | req_free (req); |
|
|
553 | } |
733 | } |
554 | |
734 | |
555 | return count; |
735 | return count; |
556 | } |
|
|
557 | |
|
|
558 | static void *aio_proc(void *arg); |
|
|
559 | |
|
|
560 | static void start_thread (void) |
|
|
561 | { |
|
|
562 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
563 | |
|
|
564 | if (!wrk) |
|
|
565 | croak ("unable to allocate worker thread data"); |
|
|
566 | |
|
|
567 | sigset_t fullsigset, oldsigset; |
|
|
568 | pthread_attr_t attr; |
|
|
569 | |
|
|
570 | pthread_attr_init (&attr); |
|
|
571 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
572 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
573 | |
|
|
574 | sigfillset (&fullsigset); |
|
|
575 | |
|
|
576 | LOCK (wrklock); |
|
|
577 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
578 | |
|
|
579 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
580 | { |
|
|
581 | wrk->prev = &wrk_first; |
|
|
582 | wrk->next = wrk_first.next; |
|
|
583 | wrk_first.next->prev = wrk; |
|
|
584 | wrk_first.next = wrk; |
|
|
585 | started++; |
|
|
586 | } |
|
|
587 | else |
|
|
588 | free (wrk); |
|
|
589 | |
|
|
590 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
591 | UNLOCK (wrklock); |
|
|
592 | } |
|
|
593 | |
|
|
594 | static void req_send (aio_req req) |
|
|
595 | { |
|
|
596 | while (started < wanted && nreqs >= started) |
|
|
597 | start_thread (); |
|
|
598 | |
|
|
599 | ++nreqs; |
|
|
600 | |
|
|
601 | LOCK (reqlock); |
|
|
602 | reqq_push (&req_queue, req); |
|
|
603 | pthread_cond_signal (&reqwait); |
|
|
604 | UNLOCK (reqlock); |
|
|
605 | |
|
|
606 | if (nreqs > max_outstanding) |
|
|
607 | for (;;) |
|
|
608 | { |
|
|
609 | poll_cb (); |
|
|
610 | |
|
|
611 | if (nreqs <= max_outstanding) |
|
|
612 | break; |
|
|
613 | |
|
|
614 | poll_wait (); |
|
|
615 | } |
|
|
616 | } |
|
|
617 | |
|
|
618 | static void end_thread (void) |
|
|
619 | { |
|
|
620 | aio_req req; |
|
|
621 | |
|
|
622 | Newz (0, req, 1, aio_cb); |
|
|
623 | |
|
|
624 | req->type = REQ_QUIT; |
|
|
625 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
626 | |
|
|
627 | req_send (req); |
|
|
628 | } |
|
|
629 | |
|
|
630 | static void min_parallel (int nthreads) |
|
|
631 | { |
|
|
632 | if (wanted < nthreads) |
|
|
633 | wanted = nthreads; |
|
|
634 | } |
|
|
635 | |
|
|
636 | static void max_parallel (int nthreads) |
|
|
637 | { |
|
|
638 | int cur = started; |
|
|
639 | |
|
|
640 | if (wanted > nthreads) |
|
|
641 | wanted = nthreads; |
|
|
642 | |
|
|
643 | while (cur > wanted) |
|
|
644 | { |
|
|
645 | end_thread (); |
|
|
646 | cur--; |
|
|
647 | } |
|
|
648 | |
|
|
649 | while (started > wanted) |
|
|
650 | { |
|
|
651 | poll_wait (); |
|
|
652 | poll_cb (); |
|
|
653 | } |
|
|
654 | } |
736 | } |
655 | |
737 | |
656 | static void create_pipe () |
738 | static void create_pipe () |
657 | { |
739 | { |
658 | if (pipe (respipe)) |
740 | if (pipe (respipe)) |
… | |
… | |
713 | #if !HAVE_FDATASYNC |
795 | #if !HAVE_FDATASYNC |
714 | # define fdatasync fsync |
796 | # define fdatasync fsync |
715 | #endif |
797 | #endif |
716 | |
798 | |
717 | #if !HAVE_READAHEAD |
799 | #if !HAVE_READAHEAD |
718 | # define readahead aio_readahead |
800 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
719 | |
801 | |
720 | static ssize_t readahead (int fd, off_t offset, size_t count) |
802 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
721 | { |
803 | { |
722 | dBUF; |
804 | dBUF; |
723 | |
805 | |
724 | while (count > 0) |
806 | while (count > 0) |
725 | { |
807 | { |
… | |
… | |
730 | count -= len; |
812 | count -= len; |
731 | } |
813 | } |
732 | |
814 | |
733 | errno = 0; |
815 | errno = 0; |
734 | } |
816 | } |
|
|
817 | |
735 | #endif |
818 | #endif |
736 | |
819 | |
737 | #if !HAVE_READDIR_R |
820 | #if !HAVE_READDIR_R |
738 | # define readdir_r aio_readdir_r |
821 | # define readdir_r aio_readdir_r |
739 | |
822 | |
… | |
… | |
784 | { |
867 | { |
785 | off_t sbytes; |
868 | off_t sbytes; |
786 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
869 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
787 | |
870 | |
788 | if (res < 0 && sbytes) |
871 | if (res < 0 && sbytes) |
789 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
872 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
790 | res = sbytes; |
873 | res = sbytes; |
791 | } |
874 | } |
792 | |
875 | |
793 | # elif __hpux |
876 | # elif __hpux |
794 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
877 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
874 | int errorno; |
957 | int errorno; |
875 | |
958 | |
876 | LOCK (wrklock); |
959 | LOCK (wrklock); |
877 | self->dirp = dirp = opendir (req->dataptr); |
960 | self->dirp = dirp = opendir (req->dataptr); |
878 | self->dbuf = u = malloc (sizeof (*u)); |
961 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
962 | req->data2ptr = names = malloc (memlen); |
879 | UNLOCK (wrklock); |
963 | UNLOCK (wrklock); |
880 | |
|
|
881 | req->data2ptr = names = malloc (memlen); |
|
|
882 | |
964 | |
883 | if (dirp && u && names) |
965 | if (dirp && u && names) |
884 | for (;;) |
966 | for (;;) |
885 | { |
967 | { |
886 | errno = 0; |
968 | errno = 0; |
… | |
… | |
922 | /*****************************************************************************/ |
1004 | /*****************************************************************************/ |
923 | |
1005 | |
924 | static void *aio_proc (void *thr_arg) |
1006 | static void *aio_proc (void *thr_arg) |
925 | { |
1007 | { |
926 | aio_req req; |
1008 | aio_req req; |
927 | int type; |
|
|
928 | worker *self = (worker *)thr_arg; |
1009 | worker *self = (worker *)thr_arg; |
929 | |
1010 | |
930 | do |
1011 | for (;;) |
931 | { |
1012 | { |
932 | LOCK (reqlock); |
1013 | LOCK (reqlock); |
933 | |
1014 | |
934 | for (;;) |
1015 | for (;;) |
935 | { |
1016 | { |
… | |
… | |
939 | break; |
1020 | break; |
940 | |
1021 | |
941 | pthread_cond_wait (&reqwait, &reqlock); |
1022 | pthread_cond_wait (&reqwait, &reqlock); |
942 | } |
1023 | } |
943 | |
1024 | |
|
|
1025 | --nready; |
|
|
1026 | |
944 | UNLOCK (reqlock); |
1027 | UNLOCK (reqlock); |
945 | |
1028 | |
946 | errno = 0; /* strictly unnecessary */ |
1029 | errno = 0; /* strictly unnecessary */ |
947 | type = req->type; /* remember type for QUIT check */ |
|
|
948 | |
1030 | |
949 | if (!(req->flags & FLAG_CANCELLED)) |
1031 | if (!(req->flags & FLAG_CANCELLED)) |
950 | switch (type) |
1032 | switch (req->type) |
951 | { |
1033 | { |
952 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1034 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
953 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1035 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
954 | |
1036 | |
955 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1037 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
964 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1046 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
965 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1047 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
966 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1048 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
967 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1049 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
968 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1050 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1051 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
969 | |
1052 | |
970 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1053 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
971 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1054 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
972 | case REQ_READDIR: scandir_ (req, self); break; |
1055 | case REQ_READDIR: scandir_ (req, self); break; |
973 | |
1056 | |
… | |
… | |
981 | req->result = select (0, 0, 0, 0, &tv); |
1064 | req->result = select (0, 0, 0, 0, &tv); |
982 | } |
1065 | } |
983 | |
1066 | |
984 | case REQ_GROUP: |
1067 | case REQ_GROUP: |
985 | case REQ_NOP: |
1068 | case REQ_NOP: |
|
|
1069 | break; |
|
|
1070 | |
986 | case REQ_QUIT: |
1071 | case REQ_QUIT: |
|
|
1072 | LOCK (wrklock); |
|
|
1073 | worker_free (self); |
|
|
1074 | --started; |
|
|
1075 | UNLOCK (wrklock); |
987 | break; |
1076 | return 0; |
988 | |
1077 | |
989 | default: |
1078 | default: |
990 | req->result = ENOSYS; |
1079 | req->result = ENOSYS; |
991 | break; |
1080 | break; |
992 | } |
1081 | } |
993 | |
1082 | |
994 | req->errorno = errno; |
1083 | req->errorno = errno; |
995 | |
1084 | |
996 | LOCK (reslock); |
1085 | LOCK (reslock); |
997 | |
1086 | |
|
|
1087 | ++npending; |
|
|
1088 | |
998 | if (!reqq_push (&res_queue, req)) |
1089 | if (!reqq_push (&res_queue, req)) |
999 | /* write a dummy byte to the pipe so fh becomes ready */ |
1090 | /* write a dummy byte to the pipe so fh becomes ready */ |
1000 | write (respipe [1], &respipe, 1); |
1091 | write (respipe [1], &respipe, 1); |
1001 | |
1092 | |
1002 | self->req = 0; |
1093 | self->req = 0; |
1003 | worker_clear (self); |
1094 | worker_clear (self); |
1004 | |
1095 | |
1005 | UNLOCK (reslock); |
1096 | UNLOCK (reslock); |
1006 | } |
1097 | } |
1007 | while (type != REQ_QUIT); |
|
|
1008 | |
|
|
1009 | LOCK (wrklock); |
|
|
1010 | worker_free (self); |
|
|
1011 | UNLOCK (wrklock); |
|
|
1012 | |
|
|
1013 | return 0; |
|
|
1014 | } |
1098 | } |
1015 | |
1099 | |
1016 | /*****************************************************************************/ |
1100 | /*****************************************************************************/ |
1017 | |
1101 | |
1018 | static void atfork_prepare (void) |
1102 | static void atfork_prepare (void) |
… | |
… | |
1098 | PROTOTYPES: ENABLE |
1182 | PROTOTYPES: ENABLE |
1099 | |
1183 | |
1100 | BOOT: |
1184 | BOOT: |
1101 | { |
1185 | { |
1102 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1186 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1187 | |
1103 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1188 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1104 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1189 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1105 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1190 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1191 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1192 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1193 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
1106 | |
1194 | |
1107 | create_pipe (); |
1195 | create_pipe (); |
1108 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1196 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1109 | } |
|
|
1110 | |
1197 | |
|
|
1198 | start_thread (); |
|
|
1199 | } |
|
|
1200 | |
1111 | void |
1201 | void |
1112 | min_parallel (nthreads) |
1202 | min_parallel (int nthreads) |
1113 | int nthreads |
|
|
1114 | PROTOTYPE: $ |
1203 | PROTOTYPE: $ |
1115 | |
1204 | |
1116 | void |
1205 | void |
1117 | max_parallel (nthreads) |
1206 | max_parallel (int nthreads) |
1118 | int nthreads |
|
|
1119 | PROTOTYPE: $ |
1207 | PROTOTYPE: $ |
1120 | |
1208 | |
1121 | int |
1209 | int |
1122 | max_outstanding (nreqs) |
1210 | max_outstanding (int maxreqs) |
1123 | int nreqs |
1211 | PROTOTYPE: $ |
1124 | PROTOTYPE: $ |
|
|
1125 | CODE: |
1212 | CODE: |
1126 | RETVAL = max_outstanding; |
1213 | RETVAL = max_outstanding; |
1127 | max_outstanding = nreqs; |
1214 | max_outstanding = maxreqs; |
|
|
1215 | OUTPUT: |
|
|
1216 | RETVAL |
1128 | |
1217 | |
1129 | void |
1218 | void |
1130 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1219 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1131 | SV * pathname |
1220 | SV * pathname |
1132 | int flags |
1221 | int flags |
… | |
… | |
1347 | |
1436 | |
1348 | REQ_SEND; |
1437 | REQ_SEND; |
1349 | } |
1438 | } |
1350 | |
1439 | |
1351 | void |
1440 | void |
|
|
1441 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1442 | SV * pathname |
|
|
1443 | SV * callback |
|
|
1444 | UV mode |
|
|
1445 | UV dev |
|
|
1446 | PPCODE: |
|
|
1447 | { |
|
|
1448 | dREQ; |
|
|
1449 | |
|
|
1450 | req->type = REQ_MKNOD; |
|
|
1451 | req->data = newSVsv (pathname); |
|
|
1452 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1453 | req->mode = (mode_t)mode; |
|
|
1454 | req->offset = dev; |
|
|
1455 | |
|
|
1456 | REQ_SEND; |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | void |
1352 | aio_busy (delay,callback=&PL_sv_undef) |
1460 | aio_busy (delay,callback=&PL_sv_undef) |
1353 | double delay |
1461 | double delay |
1354 | SV * callback |
1462 | SV * callback |
1355 | PPCODE: |
1463 | PPCODE: |
1356 | { |
1464 | { |
… | |
… | |
1387 | req->type = REQ_NOP; |
1495 | req->type = REQ_NOP; |
1388 | |
1496 | |
1389 | REQ_SEND; |
1497 | REQ_SEND; |
1390 | } |
1498 | } |
1391 | |
1499 | |
1392 | void |
1500 | int |
1393 | aioreq_pri (int pri = DEFAULT_PRI) |
1501 | aioreq_pri (int pri = 0) |
1394 | CODE: |
1502 | PROTOTYPE: ;$ |
|
|
1503 | CODE: |
|
|
1504 | RETVAL = next_pri - PRI_BIAS; |
|
|
1505 | if (items > 0) |
|
|
1506 | { |
1395 | if (pri < PRI_MIN) pri = PRI_MIN; |
1507 | if (pri < PRI_MIN) pri = PRI_MIN; |
1396 | if (pri > PRI_MAX) pri = PRI_MAX; |
1508 | if (pri > PRI_MAX) pri = PRI_MAX; |
1397 | next_pri = pri + PRI_BIAS; |
1509 | next_pri = pri + PRI_BIAS; |
|
|
1510 | } |
|
|
1511 | OUTPUT: |
|
|
1512 | RETVAL |
1398 | |
1513 | |
1399 | void |
1514 | void |
1400 | aioreq_nice (int nice = 0) |
1515 | aioreq_nice (int nice = 0) |
1401 | CODE: |
1516 | CODE: |
1402 | nice = next_pri - nice; |
1517 | nice = next_pri - nice; |
1403 | if (nice < PRI_MIN) nice = PRI_MIN; |
1518 | if (nice < PRI_MIN) nice = PRI_MIN; |
1404 | if (nice > PRI_MAX) nice = PRI_MAX; |
1519 | if (nice > PRI_MAX) nice = PRI_MAX; |
1405 | next_pri = nice + PRI_BIAS; |
1520 | next_pri = nice + PRI_BIAS; |
1406 | |
1521 | |
1407 | void |
1522 | void |
1408 | flush () |
1523 | flush () |
1409 | PROTOTYPE: |
1524 | PROTOTYPE: |
1410 | CODE: |
1525 | CODE: |
1411 | while (nreqs) |
1526 | while (nreqs) |
1412 | { |
1527 | { |
1413 | poll_wait (); |
1528 | poll_wait (); |
1414 | poll_cb (); |
1529 | poll_cb (0); |
1415 | } |
1530 | } |
1416 | |
1531 | |
1417 | void |
1532 | void |
1418 | poll() |
1533 | poll() |
1419 | PROTOTYPE: |
1534 | PROTOTYPE: |
1420 | CODE: |
1535 | CODE: |
1421 | if (nreqs) |
1536 | if (nreqs) |
1422 | { |
1537 | { |
1423 | poll_wait (); |
1538 | poll_wait (); |
1424 | poll_cb (); |
1539 | poll_cb (0); |
1425 | } |
1540 | } |
1426 | |
1541 | |
1427 | int |
1542 | int |
1428 | poll_fileno() |
1543 | poll_fileno() |
1429 | PROTOTYPE: |
1544 | PROTOTYPE: |
… | |
… | |
1434 | |
1549 | |
1435 | int |
1550 | int |
1436 | poll_cb(...) |
1551 | poll_cb(...) |
1437 | PROTOTYPE: |
1552 | PROTOTYPE: |
1438 | CODE: |
1553 | CODE: |
1439 | RETVAL = poll_cb (); |
1554 | RETVAL = poll_cb (0); |
|
|
1555 | OUTPUT: |
|
|
1556 | RETVAL |
|
|
1557 | |
|
|
1558 | int |
|
|
1559 | poll_some(int max = 0) |
|
|
1560 | PROTOTYPE: $ |
|
|
1561 | CODE: |
|
|
1562 | RETVAL = poll_cb (max); |
1440 | OUTPUT: |
1563 | OUTPUT: |
1441 | RETVAL |
1564 | RETVAL |
1442 | |
1565 | |
1443 | void |
1566 | void |
1444 | poll_wait() |
1567 | poll_wait() |
… | |
… | |
1453 | CODE: |
1576 | CODE: |
1454 | RETVAL = nreqs; |
1577 | RETVAL = nreqs; |
1455 | OUTPUT: |
1578 | OUTPUT: |
1456 | RETVAL |
1579 | RETVAL |
1457 | |
1580 | |
|
|
1581 | int |
|
|
1582 | nready() |
|
|
1583 | PROTOTYPE: |
|
|
1584 | CODE: |
|
|
1585 | RETVAL = get_nready (); |
|
|
1586 | OUTPUT: |
|
|
1587 | RETVAL |
|
|
1588 | |
|
|
1589 | int |
|
|
1590 | npending() |
|
|
1591 | PROTOTYPE: |
|
|
1592 | CODE: |
|
|
1593 | RETVAL = get_npending (); |
|
|
1594 | OUTPUT: |
|
|
1595 | RETVAL |
|
|
1596 | |
1458 | PROTOTYPES: DISABLE |
1597 | PROTOTYPES: DISABLE |
1459 | |
1598 | |
1460 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1599 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1461 | |
1600 | |
1462 | void |
1601 | void |
… | |
… | |
1513 | void |
1652 | void |
1514 | result (aio_req grp, ...) |
1653 | result (aio_req grp, ...) |
1515 | CODE: |
1654 | CODE: |
1516 | { |
1655 | { |
1517 | int i; |
1656 | int i; |
|
|
1657 | AV *av; |
|
|
1658 | |
|
|
1659 | grp->errorno = errno; |
|
|
1660 | |
1518 | AV *av = newAV (); |
1661 | av = newAV (); |
1519 | |
1662 | |
1520 | for (i = 1; i < items; ++i ) |
1663 | for (i = 1; i < items; ++i ) |
1521 | av_push (av, newSVsv (ST (i))); |
1664 | av_push (av, newSVsv (ST (i))); |
1522 | |
1665 | |
1523 | SvREFCNT_dec (grp->data); |
1666 | SvREFCNT_dec (grp->data); |
1524 | grp->data = (SV *)av; |
1667 | grp->data = (SV *)av; |
1525 | } |
1668 | } |
|
|
1669 | |
|
|
1670 | void |
|
|
1671 | errno (aio_req grp, int errorno = errno) |
|
|
1672 | CODE: |
|
|
1673 | grp->errorno = errorno; |
1526 | |
1674 | |
1527 | void |
1675 | void |
1528 | limit (aio_req grp, int limit) |
1676 | limit (aio_req grp, int limit) |
1529 | CODE: |
1677 | CODE: |
1530 | grp->fd2 = limit; |
1678 | grp->fd2 = limit; |