|
|
1 | /* |
|
|
2 | * libeio implementation |
|
|
3 | * |
|
|
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libeio@schmorp.de> |
|
|
5 | * All rights reserved. |
|
|
6 | * |
|
|
7 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
8 | * tion, are permitted provided that the following conditions are met: |
|
|
9 | * |
|
|
10 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
11 | * this list of conditions and the following disclaimer. |
|
|
12 | * |
|
|
13 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
14 | * notice, this list of conditions and the following disclaimer in the |
|
|
15 | * documentation and/or other materials provided with the distribution. |
|
|
16 | * |
|
|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
27 | * |
|
|
28 | * Alternatively, the contents of this file may be used under the terms of |
|
|
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
30 | * in which case the provisions of the GPL are applicable instead of |
|
|
31 | * the above. If you wish to allow the use of your version of this file |
|
|
32 | * only under the terms of the GPL and not to allow others to use your |
|
|
33 | * version of this file under the BSD license, indicate your decision |
|
|
34 | * by deleting the provisions above and replace them with the notice |
|
|
35 | * and other provisions required by the GPL. If you do not delete the |
|
|
36 | * provisions above, a recipient may use your version of this file under |
|
|
37 | * either the BSD or the GPL. |
|
|
38 | */ |
|
|
39 | |
1 | #include "eio.h" |
40 | #include "eio.h" |
2 | #include "xthread.h" |
41 | #include "xthread.h" |
3 | |
42 | |
4 | #include <errno.h> |
43 | #include <errno.h> |
5 | #include <stddef.h> |
44 | #include <stddef.h> |
… | |
… | |
41 | # ifndef EIO_STRUCT_DIRENT |
80 | # ifndef EIO_STRUCT_DIRENT |
42 | # define EIO_STRUCT_DIRENT struct dirent |
81 | # define EIO_STRUCT_DIRENT struct dirent |
43 | # endif |
82 | # endif |
44 | |
83 | |
45 | #endif |
84 | #endif |
46 | |
|
|
47 | # ifndef EIO_STRUCT_STAT |
|
|
48 | # define EIO_STRUCT_STAT struct stat |
|
|
49 | # endif |
|
|
50 | |
85 | |
51 | #if HAVE_SENDFILE |
86 | #if HAVE_SENDFILE |
52 | # if __linux |
87 | # if __linux |
53 | # include <sys/sendfile.h> |
88 | # include <sys/sendfile.h> |
54 | # elif __freebsd |
89 | # elif __freebsd |
… | |
… | |
74 | /* buffer size for various temporary buffers */ |
109 | /* buffer size for various temporary buffers */ |
75 | #define EIO_BUFSIZE 65536 |
110 | #define EIO_BUFSIZE 65536 |
76 | |
111 | |
77 | #define dBUF \ |
112 | #define dBUF \ |
78 | char *eio_buf; \ |
113 | char *eio_buf; \ |
79 | X_LOCK (wrklock); \ |
114 | ETP_WORKER_LOCK (self); \ |
80 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
115 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
81 | X_UNLOCK (wrklock); \ |
116 | ETP_WORKER_UNLOCK (self); \ |
|
|
117 | errno = ENOMEM; \ |
82 | if (!eio_buf) \ |
118 | if (!eio_buf) \ |
83 | return -1; |
119 | return -1; |
84 | |
120 | |
85 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
121 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
86 | |
122 | |
|
|
123 | /*****************************************************************************/ |
|
|
124 | |
|
|
125 | #define ETP_PRI_MIN EIO_PRI_MIN |
|
|
126 | #define ETP_PRI_MAX EIO_PRI_MAX |
|
|
127 | |
|
|
128 | struct etp_worker; |
|
|
129 | |
|
|
130 | #define ETP_REQ eio_req |
|
|
131 | #define ETP_DESTROY(req) eio_destroy (req) |
|
|
132 | static int eio_finish (eio_req *req); |
|
|
133 | #define ETP_FINISH(req) eio_finish (req) |
|
|
134 | static void eio_execute (struct etp_worker *self, eio_req *req); |
|
|
135 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
|
|
136 | |
|
|
137 | #define ETP_WORKER_CLEAR(req) \ |
|
|
138 | if (wrk->dbuf) \ |
|
|
139 | { \ |
|
|
140 | free (wrk->dbuf); \ |
|
|
141 | wrk->dbuf = 0; \ |
|
|
142 | } \ |
|
|
143 | \ |
|
|
144 | if (wrk->dirp) \ |
|
|
145 | { \ |
|
|
146 | closedir (wrk->dirp); \ |
|
|
147 | wrk->dirp = 0; \ |
|
|
148 | } |
|
|
149 | #define ETP_WORKER_COMMON \ |
|
|
150 | void *dbuf; \ |
|
|
151 | DIR *dirp; |
|
|
152 | |
|
|
153 | /*****************************************************************************/ |
|
|
154 | |
|
|
155 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
|
|
156 | |
|
|
157 | /* calculcate time difference in ~1/EIO_TICKS of a second */ |
|
|
158 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
|
|
159 | { |
|
|
160 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
|
|
161 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
|
|
162 | } |
|
|
163 | |
|
|
164 | static unsigned int started, idle, wanted = 4; |
|
|
165 | |
87 | static void (*want_poll_cb) (void); |
166 | static void (*want_poll_cb) (void); |
88 | static void (*done_poll_cb) (void); |
167 | static void (*done_poll_cb) (void); |
89 | |
168 | |
90 | static unsigned int max_poll_time = 0; |
169 | static unsigned int max_poll_time; /* reslock */ |
91 | static unsigned int max_poll_reqs = 0; |
170 | static unsigned int max_poll_reqs; /* reslock */ |
92 | |
171 | |
93 | /* calculcate time difference in ~1/EIO_TICKS of a second */ |
172 | static volatile unsigned int nreqs; /* reqlock */ |
94 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
173 | static volatile unsigned int nready; /* reqlock */ |
95 | { |
174 | static volatile unsigned int npending; /* reqlock */ |
96 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
175 | static volatile unsigned int max_idle = 4; |
97 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
|
|
98 | } |
|
|
99 | |
176 | |
100 | static unsigned int started, idle, wanted; |
|
|
101 | |
|
|
102 | /* worker threads management */ |
|
|
103 | static mutex_t wrklock = X_MUTEX_INIT; |
177 | static mutex_t wrklock = X_MUTEX_INIT; |
104 | |
|
|
105 | typedef struct worker { |
|
|
106 | /* locked by wrklock */ |
|
|
107 | struct worker *prev, *next; |
|
|
108 | |
|
|
109 | thread_t tid; |
|
|
110 | |
|
|
111 | /* locked by reslock, reqlock or wrklock */ |
|
|
112 | eio_req *req; /* currently processed request */ |
|
|
113 | void *dbuf; |
|
|
114 | DIR *dirp; |
|
|
115 | } worker; |
|
|
116 | |
|
|
117 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
|
|
118 | |
|
|
119 | static void worker_clear (worker *wrk) |
|
|
120 | { |
|
|
121 | if (wrk->dirp) |
|
|
122 | { |
|
|
123 | closedir (wrk->dirp); |
|
|
124 | wrk->dirp = 0; |
|
|
125 | } |
|
|
126 | |
|
|
127 | if (wrk->dbuf) |
|
|
128 | { |
|
|
129 | free (wrk->dbuf); |
|
|
130 | wrk->dbuf = 0; |
|
|
131 | } |
|
|
132 | } |
|
|
133 | |
|
|
134 | static void worker_free (worker *wrk) |
|
|
135 | { |
|
|
136 | wrk->next->prev = wrk->prev; |
|
|
137 | wrk->prev->next = wrk->next; |
|
|
138 | |
|
|
139 | free (wrk); |
|
|
140 | } |
|
|
141 | |
|
|
142 | static volatile unsigned int nreqs, nready, npending; |
|
|
143 | static volatile unsigned int max_idle = 4; |
|
|
144 | |
|
|
145 | static mutex_t reslock = X_MUTEX_INIT; |
178 | static mutex_t reslock = X_MUTEX_INIT; |
146 | static mutex_t reqlock = X_MUTEX_INIT; |
179 | static mutex_t reqlock = X_MUTEX_INIT; |
147 | static cond_t reqwait = X_COND_INIT; |
180 | static cond_t reqwait = X_COND_INIT; |
148 | |
181 | |
|
|
182 | typedef struct etp_worker |
|
|
183 | { |
|
|
184 | /* locked by wrklock */ |
|
|
185 | struct etp_worker *prev, *next; |
|
|
186 | |
|
|
187 | thread_t tid; |
|
|
188 | |
|
|
189 | /* locked by reslock, reqlock or wrklock */ |
|
|
190 | ETP_REQ *req; /* currently processed request */ |
|
|
191 | |
|
|
192 | ETP_WORKER_COMMON |
|
|
193 | } etp_worker; |
|
|
194 | |
|
|
195 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
|
|
196 | |
|
|
197 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
|
|
198 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
|
|
199 | |
|
|
200 | /* worker threads management */ |
|
|
201 | |
|
|
202 | static void etp_worker_clear (etp_worker *wrk) |
|
|
203 | { |
|
|
204 | ETP_WORKER_CLEAR (wrk); |
|
|
205 | } |
|
|
206 | |
|
|
207 | static void etp_worker_free (etp_worker *wrk) |
|
|
208 | { |
|
|
209 | wrk->next->prev = wrk->prev; |
|
|
210 | wrk->prev->next = wrk->next; |
|
|
211 | |
|
|
212 | free (wrk); |
|
|
213 | } |
|
|
214 | |
149 | unsigned int eio_nreqs (void) |
215 | static unsigned int etp_nreqs (void) |
150 | { |
216 | { |
|
|
217 | int retval; |
|
|
218 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
219 | retval = nreqs; |
|
|
220 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
151 | return nreqs; |
221 | return retval; |
152 | } |
222 | } |
153 | |
223 | |
154 | unsigned int eio_nready (void) |
224 | static unsigned int etp_nready (void) |
155 | { |
225 | { |
156 | unsigned int retval; |
226 | unsigned int retval; |
157 | |
227 | |
158 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
228 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
159 | retval = nready; |
229 | retval = nready; |
160 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
230 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
161 | |
231 | |
162 | return retval; |
232 | return retval; |
163 | } |
233 | } |
164 | |
234 | |
165 | unsigned int eio_npending (void) |
235 | static unsigned int etp_npending (void) |
166 | { |
236 | { |
167 | unsigned int retval; |
237 | unsigned int retval; |
168 | |
238 | |
169 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
239 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
170 | retval = npending; |
240 | retval = npending; |
171 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
241 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
172 | |
242 | |
173 | return retval; |
243 | return retval; |
174 | } |
244 | } |
175 | |
245 | |
176 | unsigned int eio_nthreads (void) |
246 | static unsigned int etp_nthreads (void) |
177 | { |
247 | { |
178 | unsigned int retval; |
248 | unsigned int retval; |
179 | |
249 | |
180 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
250 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
181 | retval = started; |
251 | retval = started; |
… | |
… | |
188 | * a somewhat faster data structure might be nice, but |
258 | * a somewhat faster data structure might be nice, but |
189 | * with 8 priorities this actually needs <20 insns |
259 | * with 8 priorities this actually needs <20 insns |
190 | * per shift, the most expensive operation. |
260 | * per shift, the most expensive operation. |
191 | */ |
261 | */ |
192 | typedef struct { |
262 | typedef struct { |
193 | eio_req *qs[EIO_NUM_PRI], *qe[EIO_NUM_PRI]; /* qstart, qend */ |
263 | ETP_REQ *qs[ETP_NUM_PRI], *qe[ETP_NUM_PRI]; /* qstart, qend */ |
194 | int size; |
264 | int size; |
195 | } reqq; |
265 | } etp_reqq; |
196 | |
266 | |
197 | static reqq req_queue; |
267 | static etp_reqq req_queue; |
198 | static reqq res_queue; |
268 | static etp_reqq res_queue; |
199 | |
269 | |
200 | static int reqq_push (reqq *q, eio_req *req) |
270 | static int reqq_push (etp_reqq *q, ETP_REQ *req) |
201 | { |
271 | { |
202 | int pri = req->pri; |
272 | int pri = req->pri; |
203 | req->next = 0; |
273 | req->next = 0; |
204 | |
274 | |
205 | if (q->qe[pri]) |
275 | if (q->qe[pri]) |
… | |
… | |
211 | q->qe[pri] = q->qs[pri] = req; |
281 | q->qe[pri] = q->qs[pri] = req; |
212 | |
282 | |
213 | return q->size++; |
283 | return q->size++; |
214 | } |
284 | } |
215 | |
285 | |
216 | static eio_req *reqq_shift (reqq *q) |
286 | static ETP_REQ *reqq_shift (etp_reqq *q) |
217 | { |
287 | { |
218 | int pri; |
288 | int pri; |
219 | |
289 | |
220 | if (!q->size) |
290 | if (!q->size) |
221 | return 0; |
291 | return 0; |
222 | |
292 | |
223 | --q->size; |
293 | --q->size; |
224 | |
294 | |
225 | for (pri = EIO_NUM_PRI; pri--; ) |
295 | for (pri = ETP_NUM_PRI; pri--; ) |
226 | { |
296 | { |
227 | eio_req *req = q->qs[pri]; |
297 | eio_req *req = q->qs[pri]; |
228 | |
298 | |
229 | if (req) |
299 | if (req) |
230 | { |
300 | { |
… | |
… | |
236 | } |
306 | } |
237 | |
307 | |
238 | abort (); |
308 | abort (); |
239 | } |
309 | } |
240 | |
310 | |
241 | static void grp_try_feed (eio_req *grp) |
311 | static void etp_atfork_prepare (void) |
242 | { |
312 | { |
243 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
313 | X_LOCK (wrklock); |
|
|
314 | X_LOCK (reqlock); |
|
|
315 | X_LOCK (reslock); |
|
|
316 | #if !HAVE_PREADWRITE |
|
|
317 | X_LOCK (preadwritelock); |
|
|
318 | #endif |
|
|
319 | } |
|
|
320 | |
|
|
321 | static void etp_atfork_parent (void) |
|
|
322 | { |
|
|
323 | #if !HAVE_PREADWRITE |
|
|
324 | X_UNLOCK (preadwritelock); |
|
|
325 | #endif |
|
|
326 | X_UNLOCK (reslock); |
|
|
327 | X_UNLOCK (reqlock); |
|
|
328 | X_UNLOCK (wrklock); |
|
|
329 | } |
|
|
330 | |
|
|
331 | static void etp_atfork_child (void) |
|
|
332 | { |
|
|
333 | ETP_REQ *prv; |
|
|
334 | |
|
|
335 | while (prv = reqq_shift (&req_queue)) |
|
|
336 | ETP_DESTROY (prv); |
|
|
337 | |
|
|
338 | while (prv = reqq_shift (&res_queue)) |
|
|
339 | ETP_DESTROY (prv); |
|
|
340 | |
|
|
341 | while (wrk_first.next != &wrk_first) |
244 | { |
342 | { |
245 | int old_len = grp->size; |
343 | etp_worker *wrk = wrk_first.next; |
246 | |
344 | |
247 | EIO_FEED (grp); |
345 | if (wrk->req) |
|
|
346 | ETP_DESTROY (wrk->req); |
248 | |
347 | |
249 | /* stop if no progress has been made */ |
348 | etp_worker_clear (wrk); |
250 | if (old_len == grp->size) |
349 | etp_worker_free (wrk); |
251 | { |
|
|
252 | grp->feed = 0; |
|
|
253 | break; |
|
|
254 | } |
|
|
255 | } |
350 | } |
256 | } |
|
|
257 | |
351 | |
258 | static int eio_finish (eio_req *req); |
352 | started = 0; |
|
|
353 | idle = 0; |
|
|
354 | nreqs = 0; |
|
|
355 | nready = 0; |
|
|
356 | npending = 0; |
259 | |
357 | |
260 | static int grp_dec (eio_req *grp) |
358 | etp_atfork_parent (); |
261 | { |
359 | } |
262 | --grp->size; |
|
|
263 | |
360 | |
264 | /* call feeder, if applicable */ |
361 | static void |
265 | grp_try_feed (grp); |
362 | etp_once_init (void) |
|
|
363 | { |
|
|
364 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
|
|
365 | } |
266 | |
366 | |
267 | /* finish, if done */ |
367 | static int |
268 | if (!grp->size && grp->int1) |
368 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
269 | return eio_finish (grp); |
369 | { |
270 | else |
370 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
|
|
371 | |
|
|
372 | pthread_once (&doinit, etp_once_init); |
|
|
373 | |
|
|
374 | want_poll_cb = want_poll; |
|
|
375 | done_poll_cb = done_poll; |
|
|
376 | |
271 | return 0; |
377 | return 0; |
272 | } |
378 | } |
273 | |
379 | |
274 | void eio_destroy (eio_req *req) |
|
|
275 | { |
|
|
276 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
|
|
277 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
|
|
278 | |
|
|
279 | EIO_DESTROY (req); |
|
|
280 | } |
|
|
281 | |
|
|
282 | static int eio_finish (eio_req *req) |
|
|
283 | { |
|
|
284 | int res = EIO_FINISH (req); |
|
|
285 | |
|
|
286 | if (req->grp) |
|
|
287 | { |
|
|
288 | int res2; |
|
|
289 | eio_req *grp = req->grp; |
|
|
290 | |
|
|
291 | /* unlink request */ |
|
|
292 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
293 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
294 | |
|
|
295 | if (grp->grp_first == req) |
|
|
296 | grp->grp_first = req->grp_next; |
|
|
297 | |
|
|
298 | res2 = grp_dec (grp); |
|
|
299 | |
|
|
300 | if (!res && res2) |
|
|
301 | res = res2; |
|
|
302 | } |
|
|
303 | |
|
|
304 | eio_destroy (req); |
|
|
305 | |
|
|
306 | return res; |
|
|
307 | } |
|
|
308 | |
|
|
309 | void eio_grp_cancel (eio_req *grp) |
|
|
310 | { |
|
|
311 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
|
|
312 | eio_cancel (grp); |
|
|
313 | } |
|
|
314 | |
|
|
315 | void eio_cancel (eio_req *req) |
|
|
316 | { |
|
|
317 | X_LOCK (wrklock); |
|
|
318 | req->flags |= EIO_FLAG_CANCELLED; |
|
|
319 | X_UNLOCK (wrklock); |
|
|
320 | |
|
|
321 | eio_grp_cancel (req); |
|
|
322 | } |
|
|
323 | |
|
|
324 | X_THREAD_PROC (eio_proc); |
380 | X_THREAD_PROC (etp_proc); |
325 | |
381 | |
326 | static void start_thread (void) |
382 | static void etp_start_thread (void) |
327 | { |
383 | { |
328 | worker *wrk = calloc (1, sizeof (worker)); |
384 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
329 | |
385 | |
330 | /*TODO*/ |
386 | /*TODO*/ |
331 | assert (("unable to allocate worker thread data", !wrk)); |
387 | assert (("unable to allocate worker thread data", wrk)); |
332 | |
388 | |
333 | X_LOCK (wrklock); |
389 | X_LOCK (wrklock); |
334 | |
390 | |
335 | if (thread_create (&wrk->tid, eio_proc, (void *)wrk)) |
391 | if (thread_create (&wrk->tid, etp_proc, (void *)wrk)) |
336 | { |
392 | { |
337 | wrk->prev = &wrk_first; |
393 | wrk->prev = &wrk_first; |
338 | wrk->next = wrk_first.next; |
394 | wrk->next = wrk_first.next; |
339 | wrk_first.next->prev = wrk; |
395 | wrk_first.next->prev = wrk; |
340 | wrk_first.next = wrk; |
396 | wrk_first.next = wrk; |
… | |
… | |
344 | free (wrk); |
400 | free (wrk); |
345 | |
401 | |
346 | X_UNLOCK (wrklock); |
402 | X_UNLOCK (wrklock); |
347 | } |
403 | } |
348 | |
404 | |
349 | static void maybe_start_thread (void) |
405 | static void etp_maybe_start_thread (void) |
350 | { |
406 | { |
351 | if (eio_nthreads () >= wanted) |
407 | if (etp_nthreads () >= wanted) |
352 | return; |
408 | return; |
353 | |
409 | |
354 | /* todo: maybe use idle here, but might be less exact */ |
410 | /* todo: maybe use idle here, but might be less exact */ |
355 | if (0 <= (int)eio_nthreads () + (int)eio_npending () - (int)eio_nreqs ()) |
411 | if (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ()) |
356 | return; |
412 | return; |
357 | |
413 | |
358 | start_thread (); |
414 | etp_start_thread (); |
359 | } |
415 | } |
360 | |
416 | |
361 | void eio_submit (eio_req *req) |
|
|
362 | { |
|
|
363 | ++nreqs; |
|
|
364 | |
|
|
365 | X_LOCK (reqlock); |
|
|
366 | ++nready; |
|
|
367 | reqq_push (&req_queue, req); |
|
|
368 | X_COND_SIGNAL (reqwait); |
|
|
369 | X_UNLOCK (reqlock); |
|
|
370 | |
|
|
371 | maybe_start_thread (); |
|
|
372 | } |
|
|
373 | |
|
|
374 | static void end_thread (void) |
417 | static void etp_end_thread (void) |
375 | { |
418 | { |
376 | eio_req *req = calloc (1, sizeof (eio_req)); |
419 | eio_req *req = calloc (1, sizeof (eio_req)); |
377 | |
420 | |
378 | req->type = EIO_QUIT; |
421 | req->type = -1; |
379 | req->pri = EIO_PRI_MAX + EIO_PRI_BIAS; |
422 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
380 | |
423 | |
381 | X_LOCK (reqlock); |
424 | X_LOCK (reqlock); |
382 | reqq_push (&req_queue, req); |
425 | reqq_push (&req_queue, req); |
383 | X_COND_SIGNAL (reqwait); |
426 | X_COND_SIGNAL (reqwait); |
384 | X_UNLOCK (reqlock); |
427 | X_UNLOCK (reqlock); |
… | |
… | |
386 | X_LOCK (wrklock); |
429 | X_LOCK (wrklock); |
387 | --started; |
430 | --started; |
388 | X_UNLOCK (wrklock); |
431 | X_UNLOCK (wrklock); |
389 | } |
432 | } |
390 | |
433 | |
391 | void eio_set_max_poll_time (double nseconds) |
|
|
392 | { |
|
|
393 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
394 | max_poll_time = nseconds; |
|
|
395 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
396 | } |
|
|
397 | |
|
|
398 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
|
|
399 | { |
|
|
400 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
401 | max_poll_reqs = maxreqs; |
|
|
402 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
403 | } |
|
|
404 | |
|
|
405 | void eio_set_max_idle (unsigned int nthreads) |
|
|
406 | { |
|
|
407 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
408 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
409 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
410 | } |
|
|
411 | |
|
|
412 | void eio_set_min_parallel (unsigned int nthreads) |
|
|
413 | { |
|
|
414 | if (wanted < nthreads) |
|
|
415 | wanted = nthreads; |
|
|
416 | } |
|
|
417 | |
|
|
418 | void eio_set_max_parallel (unsigned int nthreads) |
|
|
419 | { |
|
|
420 | if (wanted > nthreads) |
|
|
421 | wanted = nthreads; |
|
|
422 | |
|
|
423 | while (started > wanted) |
|
|
424 | end_thread (); |
|
|
425 | } |
|
|
426 | |
|
|
427 | int eio_poll (void) |
434 | static int etp_poll (void) |
428 | { |
435 | { |
429 | int maxreqs = max_poll_reqs; |
436 | unsigned int maxreqs; |
|
|
437 | unsigned int maxtime; |
430 | struct timeval tv_start, tv_now; |
438 | struct timeval tv_start, tv_now; |
431 | eio_req *req; |
|
|
432 | |
439 | |
|
|
440 | X_LOCK (reslock); |
|
|
441 | maxreqs = max_poll_reqs; |
|
|
442 | maxtime = max_poll_time; |
|
|
443 | X_UNLOCK (reslock); |
|
|
444 | |
433 | if (max_poll_time) |
445 | if (maxtime) |
434 | gettimeofday (&tv_start, 0); |
446 | gettimeofday (&tv_start, 0); |
435 | |
447 | |
436 | for (;;) |
448 | for (;;) |
437 | { |
449 | { |
|
|
450 | ETP_REQ *req; |
|
|
451 | |
438 | maybe_start_thread (); |
452 | etp_maybe_start_thread (); |
439 | |
453 | |
440 | X_LOCK (reslock); |
454 | X_LOCK (reslock); |
441 | req = reqq_shift (&res_queue); |
455 | req = reqq_shift (&res_queue); |
442 | |
456 | |
443 | if (req) |
457 | if (req) |
… | |
… | |
451 | X_UNLOCK (reslock); |
465 | X_UNLOCK (reslock); |
452 | |
466 | |
453 | if (!req) |
467 | if (!req) |
454 | return 0; |
468 | return 0; |
455 | |
469 | |
|
|
470 | X_LOCK (reqlock); |
456 | --nreqs; |
471 | --nreqs; |
|
|
472 | X_UNLOCK (reqlock); |
457 | |
473 | |
458 | if (req->type == EIO_GROUP && req->size) |
474 | if (req->type == EIO_GROUP && req->size) |
459 | { |
475 | { |
460 | req->int1 = 1; /* mark request as delayed */ |
476 | req->int1 = 1; /* mark request as delayed */ |
461 | continue; |
477 | continue; |
462 | } |
478 | } |
463 | else |
479 | else |
464 | { |
480 | { |
465 | int res = eio_finish (req); |
481 | int res = ETP_FINISH (req); |
466 | if (res) |
482 | if (res) |
467 | return res; |
483 | return res; |
468 | } |
484 | } |
469 | |
485 | |
470 | if (maxreqs && !--maxreqs) |
486 | if (maxreqs && !--maxreqs) |
471 | break; |
487 | break; |
472 | |
488 | |
473 | if (max_poll_time) |
489 | if (maxtime) |
474 | { |
490 | { |
475 | gettimeofday (&tv_now, 0); |
491 | gettimeofday (&tv_now, 0); |
476 | |
492 | |
477 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
493 | if (tvdiff (&tv_start, &tv_now) >= maxtime) |
478 | break; |
494 | break; |
479 | } |
495 | } |
480 | } |
496 | } |
481 | |
497 | |
482 | errno = EAGAIN; |
498 | errno = EAGAIN; |
483 | return -1; |
499 | return -1; |
484 | } |
500 | } |
485 | |
501 | |
|
|
502 | static void etp_cancel (ETP_REQ *req) |
|
|
503 | { |
|
|
504 | X_LOCK (wrklock); |
|
|
505 | req->flags |= EIO_FLAG_CANCELLED; |
|
|
506 | X_UNLOCK (wrklock); |
|
|
507 | |
|
|
508 | eio_grp_cancel (req); |
|
|
509 | } |
|
|
510 | |
|
|
511 | static void etp_submit (ETP_REQ *req) |
|
|
512 | { |
|
|
513 | req->pri -= ETP_PRI_MIN; |
|
|
514 | |
|
|
515 | if (req->pri < ETP_PRI_MIN - ETP_PRI_MIN) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
|
|
516 | if (req->pri > ETP_PRI_MAX - ETP_PRI_MIN) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
|
|
517 | |
|
|
518 | X_LOCK (reqlock); |
|
|
519 | ++nreqs; |
|
|
520 | ++nready; |
|
|
521 | reqq_push (&req_queue, req); |
|
|
522 | X_COND_SIGNAL (reqwait); |
|
|
523 | X_UNLOCK (reqlock); |
|
|
524 | |
|
|
525 | etp_maybe_start_thread (); |
|
|
526 | } |
|
|
527 | |
|
|
528 | static void etp_set_max_poll_time (double nseconds) |
|
|
529 | { |
|
|
530 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
531 | max_poll_time = nseconds; |
|
|
532 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
533 | } |
|
|
534 | |
|
|
535 | static void etp_set_max_poll_reqs (unsigned int maxreqs) |
|
|
536 | { |
|
|
537 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
538 | max_poll_reqs = maxreqs; |
|
|
539 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
540 | } |
|
|
541 | |
|
|
542 | static void etp_set_max_idle (unsigned int nthreads) |
|
|
543 | { |
|
|
544 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
545 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
546 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
547 | } |
|
|
548 | |
|
|
549 | static void etp_set_min_parallel (unsigned int nthreads) |
|
|
550 | { |
|
|
551 | if (wanted < nthreads) |
|
|
552 | wanted = nthreads; |
|
|
553 | } |
|
|
554 | |
|
|
555 | static void etp_set_max_parallel (unsigned int nthreads) |
|
|
556 | { |
|
|
557 | if (wanted > nthreads) |
|
|
558 | wanted = nthreads; |
|
|
559 | |
|
|
560 | while (started > wanted) |
|
|
561 | etp_end_thread (); |
|
|
562 | } |
|
|
563 | |
|
|
564 | /*****************************************************************************/ |
|
|
565 | |
|
|
566 | static void grp_try_feed (eio_req *grp) |
|
|
567 | { |
|
|
568 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
|
|
569 | { |
|
|
570 | int old_len = grp->size; |
|
|
571 | |
|
|
572 | EIO_FEED (grp); |
|
|
573 | |
|
|
574 | /* stop if no progress has been made */ |
|
|
575 | if (old_len == grp->size) |
|
|
576 | { |
|
|
577 | grp->feed = 0; |
|
|
578 | break; |
|
|
579 | } |
|
|
580 | } |
|
|
581 | } |
|
|
582 | |
|
|
583 | static int grp_dec (eio_req *grp) |
|
|
584 | { |
|
|
585 | --grp->size; |
|
|
586 | |
|
|
587 | /* call feeder, if applicable */ |
|
|
588 | grp_try_feed (grp); |
|
|
589 | |
|
|
590 | /* finish, if done */ |
|
|
591 | if (!grp->size && grp->int1) |
|
|
592 | return eio_finish (grp); |
|
|
593 | else |
|
|
594 | return 0; |
|
|
595 | } |
|
|
596 | |
|
|
597 | void eio_destroy (eio_req *req) |
|
|
598 | { |
|
|
599 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
|
|
600 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
|
|
601 | |
|
|
602 | EIO_DESTROY (req); |
|
|
603 | } |
|
|
604 | |
|
|
605 | static int eio_finish (eio_req *req) |
|
|
606 | { |
|
|
607 | int res = EIO_FINISH (req); |
|
|
608 | |
|
|
609 | if (req->grp) |
|
|
610 | { |
|
|
611 | int res2; |
|
|
612 | eio_req *grp = req->grp; |
|
|
613 | |
|
|
614 | /* unlink request */ |
|
|
615 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
616 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
617 | |
|
|
618 | if (grp->grp_first == req) |
|
|
619 | grp->grp_first = req->grp_next; |
|
|
620 | |
|
|
621 | res2 = grp_dec (grp); |
|
|
622 | |
|
|
623 | if (!res && res2) |
|
|
624 | res = res2; |
|
|
625 | } |
|
|
626 | |
|
|
627 | eio_destroy (req); |
|
|
628 | |
|
|
629 | return res; |
|
|
630 | } |
|
|
631 | |
|
|
632 | void eio_grp_cancel (eio_req *grp) |
|
|
633 | { |
|
|
634 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
|
|
635 | eio_cancel (grp); |
|
|
636 | } |
|
|
637 | |
|
|
638 | void eio_cancel (eio_req *req) |
|
|
639 | { |
|
|
640 | etp_cancel (req); |
|
|
641 | } |
|
|
642 | |
|
|
643 | void eio_submit (eio_req *req) |
|
|
644 | { |
|
|
645 | etp_submit (req); |
|
|
646 | } |
|
|
647 | |
|
|
648 | unsigned int eio_nreqs (void) |
|
|
649 | { |
|
|
650 | return etp_nreqs (); |
|
|
651 | } |
|
|
652 | |
|
|
653 | unsigned int eio_nready (void) |
|
|
654 | { |
|
|
655 | return etp_nready (); |
|
|
656 | } |
|
|
657 | |
|
|
658 | unsigned int eio_npending (void) |
|
|
659 | { |
|
|
660 | return etp_npending (); |
|
|
661 | } |
|
|
662 | |
|
|
663 | unsigned int eio_nthreads (void) |
|
|
664 | { |
|
|
665 | return etp_nthreads (); |
|
|
666 | } |
|
|
667 | |
|
|
668 | void eio_set_max_poll_time (double nseconds) |
|
|
669 | { |
|
|
670 | etp_set_max_poll_time (nseconds); |
|
|
671 | } |
|
|
672 | |
|
|
673 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
|
|
674 | { |
|
|
675 | etp_set_max_poll_reqs (maxreqs); |
|
|
676 | } |
|
|
677 | |
|
|
678 | void eio_set_max_idle (unsigned int nthreads) |
|
|
679 | { |
|
|
680 | etp_set_max_idle (nthreads); |
|
|
681 | } |
|
|
682 | |
|
|
683 | void eio_set_min_parallel (unsigned int nthreads) |
|
|
684 | { |
|
|
685 | etp_set_min_parallel (nthreads); |
|
|
686 | } |
|
|
687 | |
|
|
688 | void eio_set_max_parallel (unsigned int nthreads) |
|
|
689 | { |
|
|
690 | etp_set_max_parallel (nthreads); |
|
|
691 | } |
|
|
692 | |
|
|
693 | int eio_poll (void) |
|
|
694 | { |
|
|
695 | return etp_poll (); |
|
|
696 | } |
|
|
697 | |
486 | /*****************************************************************************/ |
698 | /*****************************************************************************/ |
487 | /* work around various missing functions */ |
699 | /* work around various missing functions */ |
488 | |
700 | |
489 | #if !HAVE_PREADWRITE |
701 | #if !HAVE_PREADWRITE |
490 | # define pread aio_pread |
702 | # define pread eio__pread |
491 | # define pwrite aio_pwrite |
703 | # define pwrite eio__pwrite |
492 | |
704 | |
493 | /* |
705 | /* |
494 | * make our pread/pwrite safe against themselves, but not against |
706 | * make our pread/pwrite safe against themselves, but not against |
495 | * normal read/write by using a mutex. slows down execution a lot, |
707 | * normal read/write by using a mutex. slows down execution a lot, |
496 | * but that's your problem, not mine. |
708 | * but that's your problem, not mine. |
497 | */ |
709 | */ |
498 | static mutex_t preadwritelock = X_MUTEX_INIT; |
710 | static mutex_t preadwritelock = X_MUTEX_INIT; |
499 | |
711 | |
500 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
712 | static ssize_t |
|
|
713 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
501 | { |
714 | { |
502 | ssize_t res; |
715 | ssize_t res; |
503 | off_t ooffset; |
716 | off_t ooffset; |
504 | |
717 | |
505 | X_LOCK (preadwritelock); |
718 | X_LOCK (preadwritelock); |
… | |
… | |
510 | X_UNLOCK (preadwritelock); |
723 | X_UNLOCK (preadwritelock); |
511 | |
724 | |
512 | return res; |
725 | return res; |
513 | } |
726 | } |
514 | |
727 | |
515 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
728 | static ssize_t |
|
|
729 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
516 | { |
730 | { |
517 | ssize_t res; |
731 | ssize_t res; |
518 | off_t ooffset; |
732 | off_t ooffset; |
519 | |
733 | |
520 | X_LOCK (preadwritelock); |
734 | X_LOCK (preadwritelock); |
… | |
… | |
528 | } |
742 | } |
529 | #endif |
743 | #endif |
530 | |
744 | |
531 | #ifndef HAVE_FUTIMES |
745 | #ifndef HAVE_FUTIMES |
532 | |
746 | |
533 | # define utimes(path,times) aio_utimes (path, times) |
747 | # define utimes(path,times) eio__utimes (path, times) |
534 | # define futimes(fd,times) aio_futimes (fd, times) |
748 | # define futimes(fd,times) eio__futimes (fd, times) |
535 | |
749 | |
|
|
750 | static int |
536 | static int aio_utimes (const char *filename, const struct timeval times[2]) |
751 | eio__utimes (const char *filename, const struct timeval times[2]) |
537 | { |
752 | { |
538 | if (times) |
753 | if (times) |
539 | { |
754 | { |
540 | struct utimbuf buf; |
755 | struct utimbuf buf; |
541 | |
756 | |
… | |
… | |
546 | } |
761 | } |
547 | else |
762 | else |
548 | return utime (filename, 0); |
763 | return utime (filename, 0); |
549 | } |
764 | } |
550 | |
765 | |
551 | static int aio_futimes (int fd, const struct timeval tv[2]) |
766 | static int eio__futimes (int fd, const struct timeval tv[2]) |
552 | { |
767 | { |
553 | errno = ENOSYS; |
768 | errno = ENOSYS; |
554 | return -1; |
769 | return -1; |
555 | } |
770 | } |
556 | |
771 | |
… | |
… | |
559 | #if !HAVE_FDATASYNC |
774 | #if !HAVE_FDATASYNC |
560 | # define fdatasync fsync |
775 | # define fdatasync fsync |
561 | #endif |
776 | #endif |
562 | |
777 | |
563 | #if !HAVE_READAHEAD |
778 | #if !HAVE_READAHEAD |
564 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
779 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
565 | |
780 | |
|
|
781 | static ssize_t |
566 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
782 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
567 | { |
783 | { |
568 | size_t todo = count; |
784 | size_t todo = count; |
569 | dBUF; |
785 | dBUF; |
570 | |
786 | |
571 | while (todo > 0) |
787 | while (todo > 0) |
… | |
… | |
581 | return count; |
797 | return count; |
582 | } |
798 | } |
583 | |
799 | |
584 | #endif |
800 | #endif |
585 | |
801 | |
586 | #if !HAVE_READDIR_R |
|
|
587 | # define readdir_r aio_readdir_r |
|
|
588 | |
|
|
589 | static mutex_t readdirlock = X_MUTEX_INIT; |
|
|
590 | |
|
|
591 | static int readdir_r (DIR *dirp, EIO_STRUCT_DIRENT *ent, EIO_STRUCT_DIRENT **res) |
|
|
592 | { |
|
|
593 | EIO_STRUCT_DIRENT *e; |
|
|
594 | int errorno; |
|
|
595 | |
|
|
596 | X_LOCK (readdirlock); |
|
|
597 | |
|
|
598 | e = readdir (dirp); |
|
|
599 | errorno = errno; |
|
|
600 | |
|
|
601 | if (e) |
|
|
602 | { |
|
|
603 | *res = ent; |
|
|
604 | strcpy (ent->d_name, e->d_name); |
|
|
605 | } |
|
|
606 | else |
|
|
607 | *res = 0; |
|
|
608 | |
|
|
609 | X_UNLOCK (readdirlock); |
|
|
610 | |
|
|
611 | errno = errorno; |
|
|
612 | return e ? 0 : -1; |
|
|
613 | } |
|
|
614 | #endif |
|
|
615 | |
|
|
616 | /* sendfile always needs emulation */ |
802 | /* sendfile always needs emulation */ |
|
|
803 | static ssize_t |
617 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
804 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
618 | { |
805 | { |
619 | ssize_t res; |
806 | ssize_t res; |
620 | |
807 | |
621 | if (!count) |
808 | if (!count) |
622 | return 0; |
809 | return 0; |
… | |
… | |
705 | |
892 | |
706 | return res; |
893 | return res; |
707 | } |
894 | } |
708 | |
895 | |
709 | /* read a full directory */ |
896 | /* read a full directory */ |
|
|
897 | static void |
710 | static void scandir_ (eio_req *req, worker *self) |
898 | eio__scandir (eio_req *req, etp_worker *self) |
711 | { |
899 | { |
712 | DIR *dirp; |
900 | DIR *dirp; |
713 | union |
|
|
714 | { |
|
|
715 | EIO_STRUCT_DIRENT d; |
|
|
716 | char b [offsetof (EIO_STRUCT_DIRENT, d_name) + NAME_MAX + 1]; |
|
|
717 | } *u; |
|
|
718 | EIO_STRUCT_DIRENT *entp; |
901 | EIO_STRUCT_DIRENT *entp; |
719 | char *name, *names; |
902 | char *name, *names; |
720 | int memlen = 4096; |
903 | int memlen = 4096; |
721 | int memofs = 0; |
904 | int memofs = 0; |
722 | int res = 0; |
905 | int res = 0; |
723 | |
906 | |
724 | X_LOCK (wrklock); |
907 | X_LOCK (wrklock); |
725 | self->dirp = dirp = opendir (req->ptr1); |
908 | self->dirp = dirp = opendir (req->ptr1); |
726 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
727 | req->flags |= EIO_FLAG_PTR2_FREE; |
909 | req->flags |= EIO_FLAG_PTR2_FREE; |
728 | req->ptr2 = names = malloc (memlen); |
910 | req->ptr2 = names = malloc (memlen); |
729 | X_UNLOCK (wrklock); |
911 | X_UNLOCK (wrklock); |
730 | |
912 | |
731 | if (dirp && u && names) |
913 | if (dirp && names) |
732 | for (;;) |
914 | for (;;) |
733 | { |
915 | { |
734 | errno = 0; |
916 | errno = 0; |
735 | readdir_r (dirp, &u->d, &entp); |
917 | entp = readdir (dirp); |
736 | |
918 | |
737 | if (!entp) |
919 | if (!entp) |
738 | break; |
920 | break; |
739 | |
921 | |
740 | name = entp->d_name; |
922 | name = entp->d_name; |
… | |
… | |
782 | req->result = -1; \ |
964 | req->result = -1; \ |
783 | break; \ |
965 | break; \ |
784 | } \ |
966 | } \ |
785 | } |
967 | } |
786 | |
968 | |
787 | X_THREAD_PROC (eio_proc) |
969 | X_THREAD_PROC (etp_proc) |
788 | { |
970 | { |
789 | eio_req *req; |
971 | ETP_REQ *req; |
790 | struct timespec ts; |
972 | struct timespec ts; |
791 | worker *self = (worker *)thr_arg; |
973 | etp_worker *self = (etp_worker *)thr_arg; |
792 | |
974 | |
793 | /* try to distribute timeouts somewhat randomly */ |
975 | /* try to distribute timeouts somewhat randomly */ |
794 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
976 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
795 | |
977 | |
796 | for (;;) |
978 | for (;;) |
797 | { |
979 | { |
798 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
799 | |
|
|
800 | X_LOCK (reqlock); |
980 | X_LOCK (reqlock); |
801 | |
981 | |
802 | for (;;) |
982 | for (;;) |
803 | { |
983 | { |
804 | self->req = req = reqq_shift (&req_queue); |
984 | self->req = req = reqq_shift (&req_queue); |
… | |
… | |
806 | if (req) |
986 | if (req) |
807 | break; |
987 | break; |
808 | |
988 | |
809 | ++idle; |
989 | ++idle; |
810 | |
990 | |
|
|
991 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
811 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
992 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
812 | { |
993 | { |
813 | if (idle > max_idle) |
994 | if (idle > max_idle) |
814 | { |
995 | { |
815 | --idle; |
996 | --idle; |
… | |
… | |
820 | goto quit; |
1001 | goto quit; |
821 | } |
1002 | } |
822 | |
1003 | |
823 | /* we are allowed to idle, so do so without any timeout */ |
1004 | /* we are allowed to idle, so do so without any timeout */ |
824 | X_COND_WAIT (reqwait, reqlock); |
1005 | X_COND_WAIT (reqwait, reqlock); |
825 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
826 | } |
1006 | } |
827 | |
1007 | |
828 | --idle; |
1008 | --idle; |
829 | } |
1009 | } |
830 | |
1010 | |
831 | --nready; |
1011 | --nready; |
832 | |
1012 | |
833 | X_UNLOCK (reqlock); |
1013 | X_UNLOCK (reqlock); |
834 | |
1014 | |
835 | errno = 0; /* strictly unnecessary */ |
1015 | if (req->type < 0) |
|
|
1016 | goto quit; |
836 | |
1017 | |
837 | if (!EIO_CANCELLED (req)) |
1018 | if (!EIO_CANCELLED (req)) |
838 | switch (req->type) |
1019 | ETP_EXECUTE (self, req); |
839 | { |
|
|
840 | case EIO_READ: ALLOC (req->size); |
|
|
841 | req->result = req->offs >= 0 |
|
|
842 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
|
|
843 | : read (req->int1, req->ptr2, req->size); break; |
|
|
844 | case EIO_WRITE: req->result = req->offs >= 0 |
|
|
845 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
|
|
846 | : write (req->int1, req->ptr2, req->size); break; |
|
|
847 | |
|
|
848 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
849 | case EIO_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
850 | |
|
|
851 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
852 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
853 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
854 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
855 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
856 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
857 | |
|
|
858 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
859 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
860 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
861 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
|
|
862 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
863 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
864 | |
|
|
865 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
866 | case EIO_CLOSE: req->result = close (req->int1); break; |
|
|
867 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
|
|
868 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
869 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
870 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
871 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
872 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
873 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
874 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
875 | |
|
|
876 | case EIO_READLINK: ALLOC (NAME_MAX); |
|
|
877 | req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; |
|
|
878 | |
|
|
879 | case EIO_SYNC: req->result = 0; sync (); break; |
|
|
880 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
|
|
881 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
882 | |
|
|
883 | case EIO_READDIR: scandir_ (req, self); break; |
|
|
884 | |
|
|
885 | case EIO_BUSY: |
|
|
886 | #ifdef _WIN32 |
|
|
887 | Sleep (req->nv1 * 1000.); |
|
|
888 | #else |
|
|
889 | { |
|
|
890 | struct timeval tv; |
|
|
891 | |
|
|
892 | tv.tv_sec = req->nv1; |
|
|
893 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
894 | |
|
|
895 | req->result = select (0, 0, 0, 0, &tv); |
|
|
896 | } |
|
|
897 | #endif |
|
|
898 | break; |
|
|
899 | |
|
|
900 | case EIO_UTIME: |
|
|
901 | case EIO_FUTIME: |
|
|
902 | { |
|
|
903 | struct timeval tv[2]; |
|
|
904 | struct timeval *times; |
|
|
905 | |
|
|
906 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
907 | { |
|
|
908 | tv[0].tv_sec = req->nv1; |
|
|
909 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
910 | tv[1].tv_sec = req->nv2; |
|
|
911 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
912 | |
|
|
913 | times = tv; |
|
|
914 | } |
|
|
915 | else |
|
|
916 | times = 0; |
|
|
917 | |
|
|
918 | |
|
|
919 | req->result = req->type == EIO_FUTIME |
|
|
920 | ? futimes (req->int1, times) |
|
|
921 | : utimes (req->ptr1, times); |
|
|
922 | } |
|
|
923 | |
|
|
924 | case EIO_GROUP: |
|
|
925 | case EIO_NOP: |
|
|
926 | break; |
|
|
927 | |
|
|
928 | case EIO_QUIT: |
|
|
929 | goto quit; |
|
|
930 | |
|
|
931 | default: |
|
|
932 | req->result = -1; |
|
|
933 | break; |
|
|
934 | } |
|
|
935 | |
|
|
936 | req->errorno = errno; |
|
|
937 | |
1020 | |
938 | X_LOCK (reslock); |
1021 | X_LOCK (reslock); |
939 | |
1022 | |
940 | ++npending; |
1023 | ++npending; |
941 | |
1024 | |
942 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
1025 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
943 | want_poll_cb (); |
1026 | want_poll_cb (); |
944 | |
1027 | |
945 | self->req = 0; |
1028 | self->req = 0; |
946 | worker_clear (self); |
1029 | etp_worker_clear (self); |
947 | |
1030 | |
948 | X_UNLOCK (reslock); |
1031 | X_UNLOCK (reslock); |
949 | } |
1032 | } |
950 | |
1033 | |
951 | quit: |
1034 | quit: |
952 | X_LOCK (wrklock); |
1035 | X_LOCK (wrklock); |
953 | worker_free (self); |
1036 | etp_worker_free (self); |
954 | X_UNLOCK (wrklock); |
1037 | X_UNLOCK (wrklock); |
955 | |
1038 | |
956 | return 0; |
1039 | return 0; |
957 | } |
1040 | } |
958 | |
1041 | |
959 | /*****************************************************************************/ |
1042 | /*****************************************************************************/ |
960 | |
1043 | |
961 | static void eio_atfork_prepare (void) |
|
|
962 | { |
|
|
963 | X_LOCK (wrklock); |
|
|
964 | X_LOCK (reqlock); |
|
|
965 | X_LOCK (reslock); |
|
|
966 | #if !HAVE_PREADWRITE |
|
|
967 | X_LOCK (preadwritelock); |
|
|
968 | #endif |
|
|
969 | #if !HAVE_READDIR_R |
|
|
970 | X_LOCK (readdirlock); |
|
|
971 | #endif |
|
|
972 | } |
|
|
973 | |
|
|
974 | static void eio_atfork_parent (void) |
|
|
975 | { |
|
|
976 | #if !HAVE_READDIR_R |
|
|
977 | X_UNLOCK (readdirlock); |
|
|
978 | #endif |
|
|
979 | #if !HAVE_PREADWRITE |
|
|
980 | X_UNLOCK (preadwritelock); |
|
|
981 | #endif |
|
|
982 | X_UNLOCK (reslock); |
|
|
983 | X_UNLOCK (reqlock); |
|
|
984 | X_UNLOCK (wrklock); |
|
|
985 | } |
|
|
986 | |
|
|
987 | static void eio_atfork_child (void) |
|
|
988 | { |
|
|
989 | eio_req *prv; |
|
|
990 | |
|
|
991 | while (prv = reqq_shift (&req_queue)) |
|
|
992 | eio_destroy (prv); |
|
|
993 | |
|
|
994 | while (prv = reqq_shift (&res_queue)) |
|
|
995 | eio_destroy (prv); |
|
|
996 | |
|
|
997 | while (wrk_first.next != &wrk_first) |
|
|
998 | { |
|
|
999 | worker *wrk = wrk_first.next; |
|
|
1000 | |
|
|
1001 | if (wrk->req) |
|
|
1002 | eio_destroy (wrk->req); |
|
|
1003 | |
|
|
1004 | worker_clear (wrk); |
|
|
1005 | worker_free (wrk); |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | started = 0; |
|
|
1009 | idle = 0; |
|
|
1010 | nreqs = 0; |
|
|
1011 | nready = 0; |
|
|
1012 | npending = 0; |
|
|
1013 | |
|
|
1014 | eio_atfork_parent (); |
|
|
1015 | } |
|
|
1016 | |
|
|
1017 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1044 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1018 | { |
1045 | { |
1019 | want_poll_cb = want_poll; |
1046 | return etp_init (want_poll, done_poll); |
1020 | done_poll_cb = done_poll; |
|
|
1021 | |
|
|
1022 | #ifdef _WIN32 |
|
|
1023 | X_MUTEX_CHECK (wrklock); |
|
|
1024 | X_MUTEX_CHECK (reslock); |
|
|
1025 | X_MUTEX_CHECK (reqlock); |
|
|
1026 | X_MUTEX_CHECK (reqwait); |
|
|
1027 | X_MUTEX_CHECK (preadwritelock); |
|
|
1028 | X_MUTEX_CHECK (readdirlock); |
|
|
1029 | |
|
|
1030 | X_COND_CHECK (reqwait); |
|
|
1031 | #endif |
|
|
1032 | |
|
|
1033 | X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child); |
|
|
1034 | } |
1047 | } |
1035 | |
1048 | |
1036 | static void eio_api_destroy (eio_req *req) |
1049 | static void eio_api_destroy (eio_req *req) |
1037 | { |
1050 | { |
1038 | free (req); |
1051 | free (req); |
… | |
… | |
1043 | \ |
1056 | \ |
1044 | req = (eio_req *)calloc (1, sizeof *req); \ |
1057 | req = (eio_req *)calloc (1, sizeof *req); \ |
1045 | if (!req) \ |
1058 | if (!req) \ |
1046 | return 0; \ |
1059 | return 0; \ |
1047 | \ |
1060 | \ |
1048 | req->type = EIO_ ## rtype; \ |
1061 | req->type = rtype; \ |
1049 | req->pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \ |
1062 | req->pri = pri; \ |
1050 | req->finish = cb; \ |
1063 | req->finish = cb; \ |
|
|
1064 | req->data = data; \ |
1051 | req->destroy = eio_api_destroy; |
1065 | req->destroy = eio_api_destroy; |
1052 | |
1066 | |
1053 | #define SEND eio_submit (req); return req |
1067 | #define SEND eio_submit (req); return req |
1054 | |
1068 | |
1055 | #define PATH (void)0 |
1069 | #define PATH \ |
|
|
1070 | req->flags |= EIO_FLAG_PTR1_FREE; \ |
|
|
1071 | req->ptr1 = strdup (path); \ |
|
|
1072 | if (!req->ptr1) \ |
|
|
1073 | { \ |
|
|
1074 | eio_api_destroy (req); \ |
|
|
1075 | return 0; \ |
|
|
1076 | } |
1056 | |
1077 | |
|
|
1078 | static void eio_execute (etp_worker *self, eio_req *req) |
|
|
1079 | { |
|
|
1080 | errno = 0; |
|
|
1081 | |
|
|
1082 | switch (req->type) |
|
|
1083 | { |
|
|
1084 | case EIO_READ: ALLOC (req->size); |
|
|
1085 | req->result = req->offs >= 0 |
|
|
1086 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
|
|
1087 | : read (req->int1, req->ptr2, req->size); break; |
|
|
1088 | case EIO_WRITE: req->result = req->offs >= 0 |
|
|
1089 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
|
|
1090 | : write (req->int1, req->ptr2, req->size); break; |
|
|
1091 | |
|
|
1092 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1093 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1094 | |
|
|
1095 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1096 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1097 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1098 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1099 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1100 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1101 | |
|
|
1102 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1103 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1104 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
1105 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
|
|
1106 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1107 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1108 | |
|
|
1109 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1110 | case EIO_CLOSE: req->result = close (req->int1); break; |
|
|
1111 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
|
|
1112 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1113 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1114 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
1115 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
1116 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
1117 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
1118 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->int3); break; |
|
|
1119 | |
|
|
1120 | case EIO_READLINK: ALLOC (NAME_MAX); |
|
|
1121 | req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; |
|
|
1122 | |
|
|
1123 | case EIO_SYNC: req->result = 0; sync (); break; |
|
|
1124 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
|
|
1125 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1126 | |
|
|
1127 | case EIO_READDIR: eio__scandir (req, self); break; |
|
|
1128 | |
|
|
1129 | case EIO_BUSY: |
|
|
1130 | #ifdef _WIN32 |
|
|
1131 | Sleep (req->nv1 * 1000.); |
|
|
1132 | #else |
|
|
1133 | { |
|
|
1134 | struct timeval tv; |
|
|
1135 | |
|
|
1136 | tv.tv_sec = req->nv1; |
|
|
1137 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1138 | |
|
|
1139 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1140 | } |
|
|
1141 | #endif |
|
|
1142 | break; |
|
|
1143 | |
|
|
1144 | case EIO_UTIME: |
|
|
1145 | case EIO_FUTIME: |
|
|
1146 | { |
|
|
1147 | struct timeval tv[2]; |
|
|
1148 | struct timeval *times; |
|
|
1149 | |
|
|
1150 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1151 | { |
|
|
1152 | tv[0].tv_sec = req->nv1; |
|
|
1153 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1154 | tv[1].tv_sec = req->nv2; |
|
|
1155 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1156 | |
|
|
1157 | times = tv; |
|
|
1158 | } |
|
|
1159 | else |
|
|
1160 | times = 0; |
|
|
1161 | |
|
|
1162 | |
|
|
1163 | req->result = req->type == EIO_FUTIME |
|
|
1164 | ? futimes (req->int1, times) |
|
|
1165 | : utimes (req->ptr1, times); |
|
|
1166 | } |
|
|
1167 | |
|
|
1168 | case EIO_GROUP: |
|
|
1169 | case EIO_NOP: |
|
|
1170 | req->result = 0; |
|
|
1171 | break; |
|
|
1172 | |
|
|
1173 | case EIO_CUSTOM: |
|
|
1174 | req->feed (req); |
|
|
1175 | break; |
|
|
1176 | |
|
|
1177 | default: |
|
|
1178 | req->result = -1; |
|
|
1179 | break; |
|
|
1180 | } |
|
|
1181 | |
|
|
1182 | req->errorno = errno; |
|
|
1183 | } |
|
|
1184 | |
|
|
1185 | #ifndef EIO_NO_WRAPPERS |
|
|
1186 | |
|
|
1187 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
|
|
1188 | { |
|
|
1189 | REQ (EIO_NOP); SEND; |
|
|
1190 | } |
|
|
1191 | |
|
|
1192 | eio_req *eio_busy (double delay, int pri, eio_cb cb, void *data) |
|
|
1193 | { |
|
|
1194 | REQ (EIO_BUSY); req->nv1 = delay; SEND; |
|
|
1195 | } |
|
|
1196 | |
1057 | eio_req *eio_fsync (int fd, eio_cb cb) |
1197 | eio_req *eio_sync (int pri, eio_cb cb, void *data) |
1058 | { |
1198 | { |
|
|
1199 | REQ (EIO_SYNC); SEND; |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data) |
|
|
1203 | { |
1059 | REQ (FSYNC); req->int1 = fd; SEND; |
1204 | REQ (EIO_FSYNC); req->int1 = fd; SEND; |
1060 | } |
1205 | } |
1061 | |
1206 | |
1062 | eio_req *eio_fdatasync (int fd, eio_cb cb) |
1207 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
1063 | { |
1208 | { |
1064 | REQ (FDATASYNC); req->int1 = fd; SEND; |
1209 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
1065 | } |
1210 | } |
1066 | |
1211 | |
|
|
1212 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
|
|
1213 | { |
|
|
1214 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
|
|
1215 | } |
|
|
1216 | |
1067 | eio_req *eio_readahead (int fd, off_t offset, size_t length, eio_cb cb) |
1217 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) |
1068 | { |
1218 | { |
1069 | REQ (READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
1219 | REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
1070 | } |
1220 | } |
1071 | |
1221 | |
1072 | eio_req *eio_read (int fd, off_t offset, size_t length, void *data, eio_cb cb) |
1222 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
1073 | { |
1223 | { |
1074 | REQ (READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = data; SEND; |
1224 | REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
1075 | } |
1225 | } |
1076 | |
1226 | |
1077 | eio_req *eio_write (int fd, off_t offset, size_t length, void *data, eio_cb cb) |
1227 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
1078 | { |
1228 | { |
1079 | REQ (WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = data; SEND; |
1229 | REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
1080 | } |
1230 | } |
1081 | |
1231 | |
1082 | eio_req *eio_fstat (int fd, eio_cb cb) |
1232 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
1083 | { |
1233 | { |
1084 | REQ (FSTAT); req->int1 = fd; SEND; |
1234 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
1085 | } |
1235 | } |
1086 | |
1236 | |
1087 | eio_req *eio_futime (int fd, double atime, double mtime, eio_cb cb) |
1237 | eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data) |
1088 | { |
1238 | { |
1089 | REQ (FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND; |
1239 | REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND; |
1090 | } |
1240 | } |
1091 | |
1241 | |
1092 | eio_req *eio_ftruncate (int fd, off_t offset, eio_cb cb) |
1242 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data) |
1093 | { |
1243 | { |
1094 | REQ (FTRUNCATE); req->int1 = fd; req->offs = offset; SEND; |
1244 | REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND; |
1095 | } |
1245 | } |
1096 | |
1246 | |
1097 | eio_req *eio_fchmod (int fd, mode_t mode, eio_cb cb) |
1247 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
1098 | { |
1248 | { |
1099 | REQ (FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
1249 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
1100 | } |
1250 | } |
1101 | |
1251 | |
1102 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, eio_cb cb) |
1252 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
1103 | { |
1253 | { |
1104 | REQ (FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1254 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1105 | } |
1255 | } |
1106 | |
1256 | |
1107 | eio_req *eio_dup2 (int fd, int fd2, eio_cb cb) |
1257 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
1108 | { |
1258 | { |
1109 | REQ (DUP2); req->int1 = fd; req->int2 = fd2; SEND; |
1259 | REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND; |
1110 | } |
1260 | } |
1111 | |
1261 | |
1112 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, eio_cb cb) |
1262 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data) |
1113 | { |
1263 | { |
1114 | REQ (SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND; |
1264 | REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND; |
1115 | } |
1265 | } |
1116 | |
1266 | |
1117 | eio_req *eio_open (const char *path, int flags, mode_t mode, eio_cb cb) |
1267 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data) |
1118 | { |
1268 | { |
1119 | REQ (OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND; |
1269 | REQ (EIO_OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND; |
1120 | } |
1270 | } |
1121 | |
1271 | |
1122 | eio_req *eio_readlink (const char *path, eio_cb cb) |
|
|
1123 | { |
|
|
1124 | REQ (READLINK); PATH; SEND; |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | eio_req *eio_stat (const char *path, eio_cb cb) |
|
|
1128 | { |
|
|
1129 | REQ (STAT); PATH; SEND; |
|
|
1130 | } |
|
|
1131 | |
|
|
1132 | eio_req *eio_lstat (const char *path, eio_cb cb) |
|
|
1133 | { |
|
|
1134 | REQ (LSTAT); PATH; SEND; |
|
|
1135 | } |
|
|
1136 | |
|
|
1137 | eio_req *eio_utime (const char *path, double atime, double mtime, eio_cb cb) |
1272 | eio_req *eio_utime (const char *path, double atime, double mtime, int pri, eio_cb cb, void *data) |
1138 | { |
1273 | { |
1139 | REQ (UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND; |
1274 | REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND; |
1140 | } |
1275 | } |
1141 | |
1276 | |
1142 | eio_req *eio_truncate (const char *path, off_t offset, eio_cb cb) |
1277 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
1143 | { |
1278 | { |
1144 | REQ (TRUNCATE); PATH; req->offs = offset; SEND; |
1279 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
1145 | } |
1280 | } |
1146 | |
1281 | |
1147 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, eio_cb cb) |
1282 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
1148 | { |
1283 | { |
1149 | REQ (CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1284 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1150 | } |
1285 | } |
1151 | |
1286 | |
1152 | eio_req *eio_chmod (const char *path, mode_t mode, eio_cb cb) |
1287 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
1153 | { |
1288 | { |
1154 | REQ (CHMOD); PATH; req->int2 = (long)mode; SEND; |
1289 | REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND; |
1155 | } |
1290 | } |
1156 | |
1291 | |
1157 | eio_req *eio_mkdir (const char *path, mode_t mode, eio_cb cb) |
1292 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
1158 | { |
1293 | { |
1159 | REQ (MKDIR); PATH; req->int2 = (long)mode; SEND; |
1294 | REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND; |
1160 | } |
1295 | } |
1161 | |
1296 | |
1162 | eio_req *eio_unlink (const char *path, eio_cb cb) |
1297 | static eio_req * |
|
|
1298 | eio__1path (int type, const char *path, int pri, eio_cb cb, void *data) |
1163 | { |
1299 | { |
1164 | REQ (UNLINK); PATH; SEND; |
|
|
1165 | } |
|
|
1166 | |
|
|
1167 | eio_req *eio_rmdir (const char *path, eio_cb cb) |
|
|
1168 | { |
|
|
1169 | REQ (RMDIR); PATH; SEND; |
1300 | REQ (type); PATH; SEND; |
1170 | } |
1301 | } |
1171 | |
1302 | |
|
|
1303 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
|
|
1304 | { |
|
|
1305 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
|
|
1306 | } |
|
|
1307 | |
|
|
1308 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
|
|
1309 | { |
|
|
1310 | return eio__1path (EIO_STAT, path, pri, cb, data); |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data) |
|
|
1314 | { |
|
|
1315 | return eio__1path (EIO_LSTAT, path, pri, cb, data); |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data) |
|
|
1319 | { |
|
|
1320 | return eio__1path (EIO_UNLINK, path, pri, cb, data); |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data) |
|
|
1324 | { |
|
|
1325 | return eio__1path (EIO_RMDIR, path, pri, cb, data); |
|
|
1326 | } |
|
|
1327 | |
1172 | eio_req *eio_readdir (const char *path, eio_cb cb) |
1328 | eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data) |
1173 | { |
1329 | { |
1174 | REQ (READDIR); PATH; SEND; |
1330 | return eio__1path (EIO_READDIR, path, pri, cb, data); |
1175 | } |
1331 | } |
1176 | |
1332 | |
1177 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, eio_cb cb) |
1333 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) |
1178 | { |
1334 | { |
1179 | REQ (MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND; |
1335 | REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int3 = (long)dev; SEND; |
1180 | } |
1336 | } |
1181 | |
1337 | |
1182 | eio_req *eio_busy (double delay, eio_cb cb) |
1338 | static eio_req * |
|
|
1339 | eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1183 | { |
1340 | { |
1184 | REQ (BUSY); req->nv1 = delay; SEND; |
1341 | REQ (type); PATH; |
1185 | } |
|
|
1186 | |
1342 | |
|
|
1343 | req->flags |= EIO_FLAG_PTR2_FREE; |
|
|
1344 | req->ptr2 = strdup (new_path); |
|
|
1345 | if (!req->ptr2) |
|
|
1346 | { |
|
|
1347 | eio_api_destroy (req); |
|
|
1348 | return 0; |
|
|
1349 | } |
|
|
1350 | |
|
|
1351 | SEND; |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
|
|
1355 | { |
|
|
1356 | return eio__2path (EIO_LINK, path, new_path, pri, cb, data); |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
|
|
1360 | { |
|
|
1361 | return eio__2path (EIO_SYMLINK, path, new_path, pri, cb, data); |
|
|
1362 | } |
|
|
1363 | |
|
|
1364 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
|
|
1365 | { |
|
|
1366 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data) |
|
|
1370 | { |
|
|
1371 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | #endif |
|
|
1375 | |
1187 | eio_req *eio_nop (eio_cb cb) |
1376 | eio_req *eio_grp (eio_cb cb, void *data) |
1188 | { |
1377 | { |
|
|
1378 | const int pri = EIO_PRI_MAX; |
|
|
1379 | |
1189 | REQ (NOP); SEND; |
1380 | REQ (EIO_GROUP); SEND; |
1190 | } |
1381 | } |
1191 | |
1382 | |
1192 | #undef REQ |
1383 | #undef REQ |
1193 | #undef PATH |
1384 | #undef PATH |
1194 | #undef SEND |
1385 | #undef SEND |
1195 | |
1386 | |
1196 | #if 0 |
1387 | /*****************************************************************************/ |
1197 | |
1388 | /* grp functions */ |
1198 | void |
|
|
1199 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
|
|
1200 | PROTOTYPE: $$$;$ |
|
|
1201 | PPCODE: |
|
|
1202 | { |
|
|
1203 | dREQ; |
|
|
1204 | |
|
|
1205 | req->type = EIO_OPEN; |
|
|
1206 | req->sv1 = newSVsv (pathname); |
|
|
1207 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1208 | req->int1 = flags; |
|
|
1209 | req->int2 = mode; |
|
|
1210 | |
|
|
1211 | EIO_SEND; |
|
|
1212 | } |
|
|
1213 | |
|
|
1214 | void |
|
|
1215 | aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
|
|
1216 | PROTOTYPE: $;$ |
|
|
1217 | ALIAS: |
|
|
1218 | aio_fsync = EIO_FSYNC |
|
|
1219 | aio_fdatasync = EIO_FDATASYNC |
|
|
1220 | PPCODE: |
|
|
1221 | { |
|
|
1222 | dREQ; |
|
|
1223 | |
|
|
1224 | req->type = ix; |
|
|
1225 | req->sv1 = newSVsv (fh); |
|
|
1226 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1227 | |
|
|
1228 | EIO_SEND (req); |
|
|
1229 | } |
|
|
1230 | |
|
|
1231 | void |
|
|
1232 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
|
|
1233 | PROTOTYPE: $;$ |
|
|
1234 | PPCODE: |
|
|
1235 | { |
|
|
1236 | dREQ; |
|
|
1237 | |
|
|
1238 | req->type = EIO_CLOSE; |
|
|
1239 | req->sv1 = newSVsv (fh); |
|
|
1240 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1241 | |
|
|
1242 | EIO_SEND (req); |
|
|
1243 | } |
|
|
1244 | |
|
|
1245 | void |
|
|
1246 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
|
|
1247 | ALIAS: |
|
|
1248 | aio_read = EIO_READ |
|
|
1249 | aio_write = EIO_WRITE |
|
|
1250 | PROTOTYPE: $$$$$;$ |
|
|
1251 | PPCODE: |
|
|
1252 | { |
|
|
1253 | STRLEN svlen; |
|
|
1254 | char *svptr = SvPVbyte (data, svlen); |
|
|
1255 | UV len = SvUV (length); |
|
|
1256 | |
|
|
1257 | SvUPGRADE (data, SVt_PV); |
|
|
1258 | SvPOK_on (data); |
|
|
1259 | |
|
|
1260 | if (dataoffset < 0) |
|
|
1261 | dataoffset += svlen; |
|
|
1262 | |
|
|
1263 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
1264 | croak ("dataoffset outside of data scalar"); |
|
|
1265 | |
|
|
1266 | if (ix == EIO_WRITE) |
|
|
1267 | { |
|
|
1268 | /* write: check length and adjust. */ |
|
|
1269 | if (!SvOK (length) || len + dataoffset > svlen) |
|
|
1270 | len = svlen - dataoffset; |
|
|
1271 | } |
|
|
1272 | else |
|
|
1273 | { |
|
|
1274 | /* read: grow scalar as necessary */ |
|
|
1275 | svptr = SvGROW (data, len + dataoffset + 1); |
|
|
1276 | } |
|
|
1277 | |
|
|
1278 | if (len < 0) |
|
|
1279 | croak ("length must not be negative"); |
|
|
1280 | |
|
|
1281 | { |
|
|
1282 | dREQ; |
|
|
1283 | |
|
|
1284 | req->type = ix; |
|
|
1285 | req->sv1 = newSVsv (fh); |
|
|
1286 | req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) |
|
|
1287 | : IoOFP (sv_2io (fh))); |
|
|
1288 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1289 | req->size = len; |
|
|
1290 | req->sv2 = SvREFCNT_inc (data); |
|
|
1291 | req->ptr2 = (char *)svptr + dataoffset; |
|
|
1292 | req->stroffset = dataoffset; |
|
|
1293 | |
|
|
1294 | if (!SvREADONLY (data)) |
|
|
1295 | { |
|
|
1296 | SvREADONLY_on (data); |
|
|
1297 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | EIO_SEND; |
|
|
1301 | } |
|
|
1302 | } |
|
|
1303 | |
|
|
1304 | void |
|
|
1305 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
|
|
1306 | PROTOTYPE: $$;$ |
|
|
1307 | PPCODE: |
|
|
1308 | { |
|
|
1309 | SV *data; |
|
|
1310 | dREQ; |
|
|
1311 | |
|
|
1312 | data = newSV (NAME_MAX); |
|
|
1313 | SvPOK_on (data); |
|
|
1314 | |
|
|
1315 | req->type = EIO_READLINK; |
|
|
1316 | req->sv1 = newSVsv (path); |
|
|
1317 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1318 | req->sv2 = data; |
|
|
1319 | req->ptr2 = SvPVbyte_nolen (data); |
|
|
1320 | |
|
|
1321 | EIO_SEND; |
|
|
1322 | } |
|
|
1323 | |
|
|
1324 | void |
|
|
1325 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
|
|
1326 | PROTOTYPE: $$$$;$ |
|
|
1327 | PPCODE: |
|
|
1328 | { |
|
|
1329 | dREQ; |
|
|
1330 | |
|
|
1331 | req->type = EIO_SENDFILE; |
|
|
1332 | req->sv1 = newSVsv (out_fh); |
|
|
1333 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1334 | req->sv2 = newSVsv (in_fh); |
|
|
1335 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1336 | req->offs = SvVAL64 (in_offset); |
|
|
1337 | req->size = length; |
|
|
1338 | |
|
|
1339 | EIO_SEND; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | void |
|
|
1343 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
|
|
1344 | PROTOTYPE: $$$;$ |
|
|
1345 | PPCODE: |
|
|
1346 | { |
|
|
1347 | dREQ; |
|
|
1348 | |
|
|
1349 | req->type = EIO_READAHEAD; |
|
|
1350 | req->sv1 = newSVsv (fh); |
|
|
1351 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1352 | req->offs = SvVAL64 (offset); |
|
|
1353 | req->size = length; |
|
|
1354 | |
|
|
1355 | EIO_SEND; |
|
|
1356 | } |
|
|
1357 | |
|
|
1358 | void |
|
|
1359 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
|
|
1360 | ALIAS: |
|
|
1361 | aio_stat = EIO_STAT |
|
|
1362 | aio_lstat = EIO_LSTAT |
|
|
1363 | PPCODE: |
|
|
1364 | { |
|
|
1365 | dREQ; |
|
|
1366 | |
|
|
1367 | req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT)); |
|
|
1368 | if (!req->ptr2) |
|
|
1369 | { |
|
|
1370 | req_destroy (req); |
|
|
1371 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | req->flags |= FLAG_PTR2_FREE; |
|
|
1375 | req->sv1 = newSVsv (fh_or_path); |
|
|
1376 | |
|
|
1377 | if (SvPOK (fh_or_path)) |
|
|
1378 | { |
|
|
1379 | req->type = ix; |
|
|
1380 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1381 | } |
|
|
1382 | else |
|
|
1383 | { |
|
|
1384 | req->type = EIO_FSTAT; |
|
|
1385 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1386 | } |
|
|
1387 | |
|
|
1388 | EIO_SEND; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | void |
|
|
1392 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1393 | PPCODE: |
|
|
1394 | { |
|
|
1395 | dREQ; |
|
|
1396 | |
|
|
1397 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1398 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1399 | req->sv1 = newSVsv (fh_or_path); |
|
|
1400 | |
|
|
1401 | if (SvPOK (fh_or_path)) |
|
|
1402 | { |
|
|
1403 | req->type = EIO_UTIME; |
|
|
1404 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1405 | } |
|
|
1406 | else |
|
|
1407 | { |
|
|
1408 | req->type = EIO_FUTIME; |
|
|
1409 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | EIO_SEND; |
|
|
1413 | } |
|
|
1414 | |
|
|
1415 | void |
|
|
1416 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1417 | PPCODE: |
|
|
1418 | { |
|
|
1419 | dREQ; |
|
|
1420 | |
|
|
1421 | req->sv1 = newSVsv (fh_or_path); |
|
|
1422 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1423 | |
|
|
1424 | if (SvPOK (fh_or_path)) |
|
|
1425 | { |
|
|
1426 | req->type = EIO_TRUNCATE; |
|
|
1427 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1428 | } |
|
|
1429 | else |
|
|
1430 | { |
|
|
1431 | req->type = EIO_FTRUNCATE; |
|
|
1432 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1433 | } |
|
|
1434 | |
|
|
1435 | EIO_SEND; |
|
|
1436 | } |
|
|
1437 | |
|
|
1438 | void |
|
|
1439 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1440 | ALIAS: |
|
|
1441 | aio_chmod = EIO_CHMOD |
|
|
1442 | aio_fchmod = EIO_FCHMOD |
|
|
1443 | aio_mkdir = EIO_MKDIR |
|
|
1444 | PPCODE: |
|
|
1445 | { |
|
|
1446 | dREQ; |
|
|
1447 | |
|
|
1448 | req->type = type; |
|
|
1449 | req->int2 = mode; |
|
|
1450 | req->sv1 = newSVsv (fh_or_path); |
|
|
1451 | |
|
|
1452 | if (ix == EIO_FCHMOD) |
|
|
1453 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1454 | else |
|
|
1455 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1456 | |
|
|
1457 | EIO_SEND; |
|
|
1458 | } |
|
|
1459 | |
|
|
1460 | void |
|
|
1461 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1462 | PPCODE: |
|
|
1463 | { |
|
|
1464 | dREQ; |
|
|
1465 | |
|
|
1466 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1467 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1468 | req->sv1 = newSVsv (fh_or_path); |
|
|
1469 | |
|
|
1470 | if (SvPOK (fh_or_path)) |
|
|
1471 | { |
|
|
1472 | req->type = EIO_CHOWN; |
|
|
1473 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1474 | } |
|
|
1475 | else |
|
|
1476 | { |
|
|
1477 | req->type = EIO_FCHOWN; |
|
|
1478 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | EIO_SEND; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | void |
|
|
1485 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
|
|
1486 | ALIAS: |
|
|
1487 | aio_unlink = EIO_UNLINK |
|
|
1488 | aio_rmdir = EIO_RMDIR |
|
|
1489 | aio_readdir = EIO_READDIR |
|
|
1490 | PPCODE: |
|
|
1491 | { |
|
|
1492 | dREQ; |
|
|
1493 | |
|
|
1494 | req->type = ix; |
|
|
1495 | req->sv1 = newSVsv (pathname); |
|
|
1496 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1497 | |
|
|
1498 | EIO_SEND; |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | void |
|
|
1502 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
1503 | ALIAS: |
|
|
1504 | aio_link = EIO_LINK |
|
|
1505 | aio_symlink = EIO_SYMLINK |
|
|
1506 | aio_rename = EIO_RENAME |
|
|
1507 | PPCODE: |
|
|
1508 | { |
|
|
1509 | dREQ; |
|
|
1510 | |
|
|
1511 | req->type = ix; |
|
|
1512 | req->sv1 = newSVsv (oldpath); |
|
|
1513 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1514 | req->sv2 = newSVsv (newpath); |
|
|
1515 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
|
|
1516 | |
|
|
1517 | EIO_SEND; |
|
|
1518 | } |
|
|
1519 | |
|
|
1520 | void |
|
|
1521 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1522 | PPCODE: |
|
|
1523 | { |
|
|
1524 | dREQ; |
|
|
1525 | |
|
|
1526 | req->type = EIO_MKNOD; |
|
|
1527 | req->sv1 = newSVsv (pathname); |
|
|
1528 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1529 | req->int2 = (mode_t)mode; |
|
|
1530 | req->offs = dev; |
|
|
1531 | |
|
|
1532 | EIO_SEND; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | void |
|
|
1536 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1537 | PPCODE: |
|
|
1538 | { |
|
|
1539 | dREQ; |
|
|
1540 | |
|
|
1541 | req->type = EIO_BUSY; |
|
|
1542 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1543 | |
|
|
1544 | EIO_SEND; |
|
|
1545 | } |
|
|
1546 | |
|
|
1547 | void |
|
|
1548 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1549 | PROTOTYPE: ;$ |
|
|
1550 | PPCODE: |
|
|
1551 | { |
|
|
1552 | dREQ; |
|
|
1553 | |
|
|
1554 | req->type = EIO_GROUP; |
|
|
1555 | |
|
|
1556 | req_send (req); |
|
|
1557 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | void |
|
|
1561 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1562 | ALIAS: |
|
|
1563 | aio_nop = EIO_NOP |
|
|
1564 | aio_sync = EIO_SYNC |
|
|
1565 | PPCODE: |
|
|
1566 | { |
|
|
1567 | dREQ; |
|
|
1568 | |
|
|
1569 | #endif |
|
|
1570 | |
1389 | |
1571 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
1390 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
1572 | { |
1391 | { |
1573 | grp->int2 = limit; |
1392 | grp->int2 = limit; |
1574 | grp->feed = feed; |
1393 | grp->feed = feed; |
… | |
… | |
1597 | grp->grp_first->grp_prev = req; |
1416 | grp->grp_first->grp_prev = req; |
1598 | |
1417 | |
1599 | grp->grp_first = req; |
1418 | grp->grp_first = req; |
1600 | } |
1419 | } |
1601 | |
1420 | |
|
|
1421 | /*****************************************************************************/ |
|
|
1422 | /* misc garbage */ |
1602 | |
1423 | |
|
|
1424 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
|
|
1425 | { |
|
|
1426 | etp_worker wrk; |
|
|
1427 | |
|
|
1428 | wrk.dbuf = 0; |
|
|
1429 | |
|
|
1430 | eio__sendfile (ofd, ifd, offset, count, &wrk); |
|
|
1431 | |
|
|
1432 | if (wrk.dbuf) |
|
|
1433 | free (wrk.dbuf); |
|
|
1434 | } |
|
|
1435 | |