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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.92 by root, Wed Nov 8 01:59:59 2006 UTC vs.
Revision 1.207 by root, Fri Dec 30 07:40:54 2011 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# elif __hpux 22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
67#else
68
40# include <sys/socket.h> 69 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
43# else 295# else
44# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 297# endif
46#endif 298#endif
47 299#ifndef MAP_HUGETLB
48/* number of seconds after which idle threads exit */ 300# define MAP_HUGETLB 0
49#define IDLE_TIMEOUT 10
50
51/* used for struct dirent, AIX doesn't provide it */
52#ifndef NAME_MAX
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
79#endif 304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
80 314
81/* buffer size for various temporary buffers */ 315#ifndef makedev
82#define AIO_BUFSIZE 65536 316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
83 324
84#define dBUF \ 325#ifndef PAGESIZE
85 char *aio_buf; \ 326# define PAGESIZE sysconf (_SC_PAGESIZE)
86 LOCK (wrklock); \ 327#endif
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \
89 if (!aio_buf) \
90 return -1;
91
92typedef SV SV8; /* byte-sv, used for argument-checking */
93 328
94enum { 329enum {
95 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
96 REQ_OPEN, REQ_CLOSE,
97 REQ_READ, REQ_WRITE, REQ_READAHEAD,
98 REQ_SENDFILE,
99 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
100 REQ_FSYNC, REQ_FDATASYNC,
101 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
102 REQ_MKNOD, REQ_READDIR,
103 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
104 REQ_GROUP, REQ_NOP,
105 REQ_BUSY,
106}; 331};
107 332
108#define AIO_REQ_KLASS "IO::AIO::REQ"
109#define AIO_GRP_KLASS "IO::AIO::GRP"
110
111typedef struct aio_cb
112{
113 struct aio_cb *volatile next;
114
115 SV *callback, *fh;
116 SV *sv1, *sv2;
117 void *ptr1, *ptr2;
118 off_t offs;
119 size_t size;
120 ssize_t result;
121
122 STRLEN stroffset;
123 int type;
124 int int1, int2;
125 int errorno;
126 mode_t mode; /* open */
127
128 unsigned char flags;
129 unsigned char pri;
130
131 SV *self; /* the perl counterpart of this request, if any */
132 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
133} aio_cb;
134
135enum {
136 FLAG_CANCELLED = 0x01, /* request was cancelled */
137 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
138 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
139};
140
141typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
142typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
143 336
144enum { 337static SV *on_next_submit;
145 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
146 PRI_MAX = 4, 339static int max_outstanding;
147 340
148 DEFAULT_PRI = 0, 341static s_epipe respipe;
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152 342
153#define AIO_TICKS ((1000000 + 1023) >> 10)
154
155static unsigned int max_poll_time = 0;
156static unsigned int max_poll_reqs = 0;
157
158/* calculcate time difference in ~1/AIO_TICKS of a second */
159static int tvdiff (struct timeval *tv1, struct timeval *tv2)
160{
161 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
162 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
170# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
171#else
172# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
173#endif
174
175#define LOCK(mutex) pthread_mutex_lock (&(mutex))
176#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
177
178/* worker threads management */
179static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
180
181typedef struct worker {
182 /* locked by wrklock */
183 struct worker *prev, *next;
184
185 pthread_t tid;
186
187 /* locked by reslock, reqlock or wrklock */
188 aio_req req; /* currently processed request */
189 void *dbuf;
190 DIR *dirp;
191} worker;
192
193static worker wrk_first = { &wrk_first, &wrk_first, 0 };
194
195static void worker_clear (worker *wrk)
196{
197 if (wrk->dirp)
198 {
199 closedir (wrk->dirp);
200 wrk->dirp = 0;
201 }
202
203 if (wrk->dbuf)
204 {
205 free (wrk->dbuf);
206 wrk->dbuf = 0;
207 }
208}
209
210static void worker_free (worker *wrk)
211{
212 wrk->next->prev = wrk->prev;
213 wrk->prev->next = wrk->next;
214
215 free (wrk);
216}
217
218static volatile unsigned int nreqs, nready, npending;
219static volatile unsigned int max_idle = 4;
220static volatile unsigned int max_outstanding = 0xffffffff;
221static int respipe [2];
222
223static pthread_mutex_t reslock = AIO_MUTEX_INIT;
224static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
225static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
226
227#if WORDACCESS_UNSAFE
228
229static unsigned int get_nready ()
230{
231 unsigned int retval;
232
233 LOCK (reqlock);
234 retval = nready;
235 UNLOCK (reqlock);
236
237 return retval;
238}
239
240static unsigned int get_npending ()
241{
242 unsigned int retval;
243
244 LOCK (reslock);
245 retval = npending;
246 UNLOCK (reslock);
247
248 return retval;
249}
250
251static unsigned int get_nthreads ()
252{
253 unsigned int retval;
254
255 LOCK (wrklock);
256 retval = started;
257 UNLOCK (wrklock);
258
259 return retval;
260}
261
262#else
263
264# define get_nready() nready
265# define get_npending() npending
266# define get_nthreads() started
267
268#endif
269
270/*
271 * a somewhat faster data structure might be nice, but
272 * with 8 priorities this actually needs <20 insns
273 * per shift, the most expensive operation.
274 */
275typedef struct {
276 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
277 int size;
278} reqq;
279
280static reqq req_queue;
281static reqq res_queue;
282
283int reqq_push (reqq *q, aio_req req)
284{
285 int pri = req->pri;
286 req->next = 0;
287
288 if (q->qe[pri])
289 {
290 q->qe[pri]->next = req;
291 q->qe[pri] = req;
292 }
293 else
294 q->qe[pri] = q->qs[pri] = req;
295
296 return q->size++;
297}
298
299aio_req reqq_shift (reqq *q)
300{
301 int pri;
302
303 if (!q->size)
304 return 0;
305
306 --q->size;
307
308 for (pri = NUM_PRI; pri--; )
309 {
310 aio_req req = q->qs[pri];
311
312 if (req)
313 {
314 if (!(q->qs[pri] = req->next))
315 q->qe[pri] = 0;
316
317 return req;
318 }
319 }
320
321 abort ();
322}
323
324static int poll_cb ();
325static void req_invoke (aio_req req);
326static void req_free (aio_req req); 343static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
328 345
346static void
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
329/* must be called at most once */ 360/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
331{ 363{
332 if (!req->self) 364 if (!req->self)
333 { 365 {
334 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 368 }
337 369
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
339} 371}
340 372
341static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
342{ 381{
343 MAGIC *mg; 382 MAGIC *mg;
344 383
345 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 384 if (!SvROK (sv)
385 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
386 || (SvSTASH (SvRV (sv)) != aio_grp_stash
387 && SvSTASH (SvRV (sv)) != aio_req_stash
388 && !sv_derived_from (sv, "IO::AIO::REQ")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 389 croak ("object of class IO::AIO::REQ expected");
347 390
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 391 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 392
350 return mg ? (aio_req)mg->mg_ptr : 0; 393 return mg ? (aio_req)mg->mg_ptr : 0;
351} 394}
352 395
396static aio_wd
397SvAIO_WD (SV *sv)
398{
399 if (!SvROK (sv)
400 || SvTYPE (SvRV (sv)) != SVt_PVMG
401 || SvSTASH (SvRV (sv)) != aio_wd_stash)
402 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
403
404 return (aio_wd)(long)SvIVX (SvRV (sv));
405}
406
407static void
353static void aio_grp_feed (aio_req grp) 408aio_grp_feed (aio_req grp)
354{ 409{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 410 if (grp->sv2 && SvOK (grp->sv2))
356 { 411 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 412 dSP;
362 413
363 ENTER; 414 ENTER;
364 SAVETMPS; 415 SAVETMPS;
365 PUSHMARK (SP); 416 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 417 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 418 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 419 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 420 SPAGAIN;
370 FREETMPS; 421 FREETMPS;
371 LEAVE; 422 LEAVE;
372 }
373
374 /* stop if no progress has been made */
375 if (old_len == grp->size)
376 {
377 SvREFCNT_dec (grp->sv2);
378 grp->sv2 = 0;
379 break;
380 }
381 } 423 }
382} 424}
383 425
384static void aio_grp_dec (aio_req grp) 426static void
427req_submit (eio_req *req)
385{ 428{
386 --grp->size; 429 eio_submit (req);
387 430
388 /* call feeder, if applicable */ 431 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 432 {
394 req_invoke (grp); 433 dSP;
395 req_free (grp); 434 SV *cb = sv_2mortal (on_next_submit);
435
436 on_next_submit = 0;
437
438 PUSHMARK (SP);
439 PUTBACK;
440 call_sv (cb, G_DISCARD | G_EVAL);
396 } 441 }
397} 442}
398 443
444static int
399static void req_invoke (aio_req req) 445req_invoke (eio_req *req)
400{ 446{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 447 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 448 SvREADONLY_off (req->sv2);
405 449
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 450 if (!EIO_CANCELLED (req) && req->callback)
407 { 451 {
452 dSP;
453 static SV *sv_result_cache; /* caches the result integer SV */
454 SV *sv_result;
455
408 ENTER; 456 ENTER;
409 SAVETMPS; 457 SAVETMPS;
410 PUSHMARK (SP); 458 PUSHMARK (SP);
411 EXTEND (SP, 1); 459 EXTEND (SP, 1);
412 460
461 /* do not recreate the result IV from scratch each time */
462 if (expect_true (sv_result_cache))
463 {
464 sv_result = sv_result_cache; sv_result_cache = 0;
465 SvIV_set (sv_result, req->result);
466 SvIOK_only (sv_result);
467 }
468 else
469 {
470 sv_result = newSViv (req->result);
471 SvREADONLY_on (sv_result);
472 }
473
413 switch (req->type) 474 switch (req->type)
414 { 475 {
476 case EIO_WD_OPEN:
477 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
478 break;
479
415 case REQ_READDIR: 480 case EIO_READDIR:
416 { 481 {
417 SV *rv = &PL_sv_undef; 482 SV *rv = &PL_sv_undef;
418 483
419 if (req->result >= 0) 484 if (req->result >= 0)
420 { 485 {
421 int i; 486 int i;
422 char *buf = req->ptr2; 487 char *names = (char *)req->ptr2;
488 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 489 AV *av = newAV ();
424 490
425 av_extend (av, req->result - 1); 491 av_extend (av, req->result - 1);
426 492
427 for (i = 0; i < req->result; ++i) 493 for (i = 0; i < req->result; ++i)
428 { 494 {
429 SV *sv = newSVpv (buf, 0); 495 if (req->int1 & EIO_READDIR_DENTS)
496 {
497 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 498
499 if (req->int1 & EIO_READDIR_CUSTOM2)
500 {
501 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
502 AV *avent = newAV ();
503
504 av_extend (avent, 2);
505
506 if (!sv_type [ent->type])
507 {
508 sv_type [ent->type] = newSViv (ent->type);
509 SvREADONLY_on (sv_type [ent->type]);
510 }
511
512 av_store (avent, 0, namesv);
513 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
514 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
515
516 av_store (av, i, newRV_noinc ((SV *)avent));
517 }
518 else
431 av_store (av, i, sv); 519 av_store (av, i, namesv);
520
521 ++ent;
522 }
523 else
524 {
525 SV *name = newSVpv (names, 0);
526 av_store (av, i, name);
432 buf += SvCUR (sv) + 1; 527 names += SvCUR (name) + 1;
528 }
433 } 529 }
434 530
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 531 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 532 }
437 533
438 PUSHs (rv); 534 PUSHs (rv);
535
536 if (req->int1 & EIO_READDIR_CUSTOM1)
537 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
439 } 538 }
440 break; 539 break;
441 540
442 case REQ_OPEN: 541 case EIO_OPEN:
443 { 542 {
444 /* convert fd to fh */ 543 /* convert fd to fh */
445 SV *fh; 544 SV *fh = &PL_sv_undef;
446 545
447 PUSHs (sv_2mortal (newSViv (req->result))); 546 if (req->result >= 0)
448 PUTBACK; 547 {
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 548 GV *gv = (GV *)sv_newmortal ();
450 SPAGAIN; 549 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
550 char sym [64];
551 int symlen;
552
553 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
554 gv_init (gv, aio_stash, sym, symlen, 0);
451 555
452 fh = SvREFCNT_inc (POPs); 556 symlen = snprintf (
557 sym,
558 sizeof (sym),
559 "%s&=%d",
560 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
561 (int)req->result
562 );
453 563
564 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
565 fh = (SV *)gv;
566 }
567
454 PUSHMARK (SP); 568 PUSHs (fh);
455 XPUSHs (sv_2mortal (fh));
456 } 569 }
457 break; 570 break;
458 571
572 case EIO_STATVFS:
573 case EIO_FSTATVFS:
574 {
575 SV *rv = &PL_sv_undef;
576
577#ifndef _WIN32
578 if (req->result >= 0)
579 {
580 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
581 HV *hv = newHV ();
582
583 rv = sv_2mortal (newRV_noinc ((SV *)hv));
584
585 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
586 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
587 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
588 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
589 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
590 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
591 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
592 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
593 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
594 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
595 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
596 }
597#endif
598
599 PUSHs (rv);
600 }
601
602 break;
603
459 case REQ_GROUP: 604 case EIO_GROUP:
460 req->int1 = 2; /* mark group as finished */ 605 req->int1 = 2; /* mark group as finished */
461 606
462 if (req->sv1) 607 if (req->sv1)
463 { 608 {
464 int i; 609 int i;
… …
468 for (i = 0; i <= AvFILL (av); ++i) 613 for (i = 0; i <= AvFILL (av); ++i)
469 PUSHs (*av_fetch (av, i, 0)); 614 PUSHs (*av_fetch (av, i, 0));
470 } 615 }
471 break; 616 break;
472 617
473 case REQ_NOP: 618 case EIO_NOP:
474 case REQ_BUSY: 619 case EIO_BUSY:
475 break; 620 break;
476 621
477 case REQ_READLINK: 622 case EIO_READLINK:
623 case EIO_REALPATH:
478 if (req->result > 0) 624 if (req->result > 0)
479 { 625 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480 SvCUR_set (req->sv1, req->result);
481 *SvEND (req->sv1) = 0;
482 PUSHs (req->sv1);
483 }
484 break; 626 break;
485 627
486 case REQ_STAT: 628 case EIO_STAT:
487 case REQ_LSTAT: 629 case EIO_LSTAT:
488 case REQ_FSTAT: 630 case EIO_FSTAT:
489 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 631 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
632
490 PL_laststatval = req->result; 633 if (!(PL_laststatval = req->result))
634 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
491 PL_statcache = *(Stat_t *)(req->ptr2); 635 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
492 PUSHs (sv_2mortal (newSViv (req->result))); 636
637 PUSHs (sv_result);
493 break; 638 break;
494 639
495 case REQ_READ: 640 case EIO_READ:
641 {
496 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 642 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
497 *SvEND (req->sv1) = 0; 643 *SvEND (req->sv2) = 0;
498 PUSHs (sv_2mortal (newSViv (req->result))); 644 SvPOK_only (req->sv2);
645 SvSETMAGIC (req->sv2);
646 PUSHs (sv_result);
647 }
499 break; 648 break;
500 649
650 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
651 if (req->result > 0)
652 SvIV_set (sv_result, 0);
653 /* FALLTHROUGH */
654
501 default: 655 default:
502 PUSHs (sv_2mortal (newSViv (req->result))); 656 PUSHs (sv_result);
503 break; 657 break;
504 } 658 }
505 659
506 errno = req->errorno; 660 errno = req->errorno;
507 661
508 PUTBACK; 662 PUTBACK;
509 call_sv (req->callback, G_VOID | G_EVAL); 663 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
510 SPAGAIN; 664 SPAGAIN;
665
666 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
667 SvREFCNT_dec (sv_result);
668 else
669 sv_result_cache = sv_result;
511 670
512 FREETMPS; 671 FREETMPS;
513 LEAVE; 672 LEAVE;
673
674 PUTBACK;
514 } 675 }
515 676
516 if (req->grp) 677 return !!SvTRUE (ERRSV);
517 {
518 aio_req grp = req->grp;
519
520 /* unlink request */
521 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
522 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
523
524 if (grp->grp_first == req)
525 grp->grp_first = req->grp_next;
526
527 aio_grp_dec (grp);
528 }
529
530 if (SvTRUE (ERRSV))
531 {
532 req_free (req);
533 croak (0);
534 }
535} 678}
536 679
537static void req_free (aio_req req) 680static void
681req_destroy (aio_req req)
538{ 682{
539 if (req->self) 683 if (req->self)
540 { 684 {
541 sv_unmagic (req->self, PERL_MAGIC_ext); 685 sv_unmagic (req->self, PERL_MAGIC_ext);
542 SvREFCNT_dec (req->self); 686 SvREFCNT_dec (req->self);
543 } 687 }
544 688
545 SvREFCNT_dec (req->fh);
546 SvREFCNT_dec (req->sv1); 689 SvREFCNT_dec (req->sv1);
547 SvREFCNT_dec (req->sv2); 690 SvREFCNT_dec (req->sv2);
691 SvREFCNT_dec (req->sv3);
692 SvREFCNT_dec (req->sv4);
548 SvREFCNT_dec (req->callback); 693 SvREFCNT_dec (req->callback);
549 694
550 if (req->flags & FLAG_PTR2_FREE)
551 free (req->ptr2);
552
553 Safefree (req); 695 free (req);
554} 696}
555 697
698static void
556static void req_cancel_subs (aio_req grp) 699req_cancel_subs (aio_req grp)
557{ 700{
558 aio_req sub;
559
560 if (grp->type != REQ_GROUP) 701 if (grp->type != EIO_GROUP)
561 return; 702 return;
562 703
563 SvREFCNT_dec (grp->sv2); 704 SvREFCNT_dec (grp->sv2);
564 grp->sv2 = 0; 705 grp->sv2 = 0;
565 706
566 for (sub = grp->grp_first; sub; sub = sub->grp_next) 707 eio_grp_cancel (grp);
567 req_cancel (sub);
568} 708}
569 709
570static void req_cancel (aio_req req) 710static void ecb_cold
711create_respipe (void)
571{ 712{
572 req->flags |= FLAG_CANCELLED; 713 if (s_epipe_renew (&respipe))
573 714 croak ("IO::AIO: unable to initialize result pipe");
574 req_cancel_subs (req);
575} 715}
576 716
577static void *aio_proc(void *arg); 717static void
578 718poll_wait (void)
579static void start_thread (void)
580{ 719{
581 sigset_t fullsigset, oldsigset;
582 pthread_attr_t attr;
583
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 pthread_attr_init (&attr);
590 pthread_attr_setstacksize (&attr, STACKSIZE);
591 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592#ifdef PTHREAD_SCOPE_PROCESS
593 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594#endif
595
596 sigfillset (&fullsigset);
597
598 LOCK (wrklock);
599 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600
601 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
602 {
603 wrk->prev = &wrk_first;
604 wrk->next = wrk_first.next;
605 wrk_first.next->prev = wrk;
606 wrk_first.next = wrk;
607 ++started;
608 }
609 else
610 free (wrk);
611
612 sigprocmask (SIG_SETMASK, &oldsigset, 0);
613 UNLOCK (wrklock);
614}
615
616static void maybe_start_thread ()
617{
618 if (get_nthreads () >= wanted)
619 return;
620
621 /* todo: maybe use idle here, but might be less exact */
622 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
623 return;
624
625 start_thread ();
626}
627
628static void req_send (aio_req req)
629{
630 ++nreqs;
631
632 LOCK (reqlock);
633 ++nready;
634 reqq_push (&req_queue, req);
635 pthread_cond_signal (&reqwait);
636 UNLOCK (reqlock);
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 pthread_cond_signal (&reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 720 while (eio_nreqs ())
687 { 721 {
688 int size; 722 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 723
724 X_LOCK (reslock);
690 size = res_queue.size; 725 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 726 X_UNLOCK (reslock);
692 727
693 if (size) 728 if (size)
694 return; 729 return;
695 730
696 maybe_start_thread (); 731 etp_maybe_start_thread ();
697 732
698 FD_ZERO(&rfd); 733 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 734 }
703} 735}
704 736
705static int poll_cb () 737static int
738poll_cb (void)
706{ 739{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 for (;;) 740 for (;;)
718 { 741 {
719 for (;;) 742 int res = eio_poll ();
743
744 if (res > 0)
745 croak (0);
746
747 if (!max_outstanding || max_outstanding > eio_nreqs ())
748 return res;
749
750 poll_wait ();
751 }
752}
753
754static void ecb_cold
755reinit (void)
756{
757 create_respipe ();
758
759 if (eio_init (want_poll, done_poll) < 0)
760 croak ("IO::AIO: unable to initialise eio library");
761}
762
763/*****************************************************************************/
764
765#if !_POSIX_MAPPED_FILES
766# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
767# define munmap(addr,length) (errno = ENOSYS, -1)
768#endif
769
770#if !_POSIX_MEMORY_PROTECTION
771# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
772# define PROT_NONE 0
773# define PROT_WRITE 0
774# define MAP_PRIVATE 0
775# define MAP_SHARED 0
776# define MAP_FIXED 0
777#endif
778
779#define MMAP_MAGIC PERL_MAGIC_ext
780
781static int ecb_cold
782mmap_free (pTHX_ SV *sv, MAGIC *mg)
783{
784 int old_errno = errno;
785 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
786 errno = old_errno;
787
788 mg->mg_obj = 0; /* just in case */
789
790 SvREADONLY_off (sv);
791
792 if (SvPVX (sv) != mg->mg_ptr)
793 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
794
795 SvCUR_set (sv, 0);
796 SvPVX (sv) = 0;
797 SvOK_off (sv);
798
799 return 0;
800}
801
802static MGVTBL mmap_vtbl = {
803 0, 0, 0, 0, mmap_free
804};
805
806/*****************************************************************************/
807
808static SV *
809get_cb (SV *cb_sv)
810{
811 SvGETMAGIC (cb_sv);
812 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
813}
814
815static aio_req ecb_noinline
816dreq (SV *callback)
817{
818 SV *cb_cv;
819 aio_req req;
820 int req_pri = next_pri;
821 next_pri = EIO_PRI_DEFAULT;
822
823 cb_cv = get_cb (callback);
824
825 req = calloc (sizeof (*req), 1);
826 if (!req)
827 croak ("out of memory during eio_req allocation");
828
829 req->callback = SvREFCNT_inc (cb_cv);
830 req->pri = req_pri;
831
832 return req;
833}
834
835#define dREQ \
836 aio_req req = dreq (callback); \
837
838#define REQ_SEND \
839 PUTBACK; \
840 req_submit (req); \
841 SPAGAIN; \
842 \
843 if (GIMME_V != G_VOID) \
844 XPUSHs (req_sv (req, aio_req_stash));
845
846ecb_inline void
847req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
848{
849 if (expect_false (SvROK (path)))
850 {
851 SV *rv = SvRV (path);
852 SV *wdob;
853
854 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
720 { 855 {
721 maybe_start_thread (); 856 path = AvARRAY (rv)[1];
857 wdob = AvARRAY (rv)[0];
722 858
723 LOCK (reslock); 859 if (SvOK (wdob))
724 req = reqq_shift (&res_queue);
725
726 if (req)
727 { 860 {
728 --npending; 861 *wd = SvAIO_WD (wdob);
729 862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
730 if (!res_queue.size)
731 {
732 /* read any signals sent by the worker threads */
733 char buf [32];
734 while (read (respipe [0], buf, 32) == 32)
735 ;
736 }
737 }
738
739 UNLOCK (reslock);
740
741 if (!req)
742 break;
743
744 --nreqs;
745
746 if (req->type == REQ_GROUP && req->size)
747 {
748 req->int1 = 1; /* mark request as delayed */
749 continue;
750 } 863 }
751 else 864 else
752 { 865 *wd = EIO_INVALID_WD;
753 req_invoke (req);
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 } 866 }
867 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
868 {
869 *wd = (aio_wd)(long)SvIVX (rv);
870 *wdsv = SvREFCNT_inc_NN (rv);
871 *ptr = ".";
872 return; /* path set to "." */
873 }
874 else
875 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
876 }
771 877
772 if (nreqs <= max_outstanding) 878 *pathsv = newSVsv (path);
879 *ptr = SvPVbyte_nolen (*pathsv);
880}
881
882static void ecb_noinline
883req_set_path1 (aio_req req, SV *path)
884{
885 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
886}
887
888static void ecb_noinline
889req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
890{
891 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
892
893 switch (SvTYPE (rv))
894 {
895 case SVt_PVIO:
896 case SVt_PVLV:
897 case SVt_PVGV:
898 req->type = type_fh;
899 req->sv1 = newSVsv (fh_or_path);
900 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773 break; 901 break;
774 902
775 poll_wait (); 903 default:
776 904 req->type = type_path;
777 ++maxreqs; 905 req_set_path1 (req, fh_or_path);
906 break;
778 } 907 }
779
780 return count;
781} 908}
782 909
783static void create_pipe () 910XS(boot_IO__AIO) ecb_cold;
784{
785 if (pipe (respipe))
786 croak ("unable to initialize result pipe");
787 911
788 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790
791 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792 croak ("cannot set result pipe to nonblocking mode");
793}
794
795/*****************************************************************************/
796/* work around various missing functions */
797
798#if !HAVE_PREADWRITE
799# define pread aio_pread
800# define pwrite aio_pwrite
801
802/*
803 * make our pread/pwrite safe against themselves, but not against
804 * normal read/write by using a mutex. slows down execution a lot,
805 * but that's your problem, not mine.
806 */
807static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
808
809static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810{
811 ssize_t res;
812 off_t ooffset;
813
814 LOCK (preadwritelock);
815 ooffset = lseek (fd, 0, SEEK_CUR);
816 lseek (fd, offset, SEEK_SET);
817 res = read (fd, buf, count);
818 lseek (fd, ooffset, SEEK_SET);
819 UNLOCK (preadwritelock);
820
821 return res;
822}
823
824static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
825{
826 ssize_t res;
827 off_t ooffset;
828
829 LOCK (preadwritelock);
830 ooffset = lseek (fd, 0, SEEK_CUR);
831 lseek (fd, offset, SEEK_SET);
832 res = write (fd, buf, count);
833 lseek (fd, offset, SEEK_SET);
834 UNLOCK (preadwritelock);
835
836 return res;
837}
838#endif
839
840#if !HAVE_FDATASYNC
841# define fdatasync fsync
842#endif
843
844#if !HAVE_READAHEAD
845# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846
847static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
848{
849 dBUF;
850
851 while (count > 0)
852 {
853 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
854
855 pread (fd, aio_buf, len, offset);
856 offset += len;
857 count -= len;
858 }
859
860 errno = 0;
861}
862
863#endif
864
865#if !HAVE_READDIR_R
866# define readdir_r aio_readdir_r
867
868static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
869
870static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
871{
872 struct dirent *e;
873 int errorno;
874
875 LOCK (readdirlock);
876
877 e = readdir (dirp);
878 errorno = errno;
879
880 if (e)
881 {
882 *res = ent;
883 strcpy (ent->d_name, e->d_name);
884 }
885 else
886 *res = 0;
887
888 UNLOCK (readdirlock);
889
890 errno = errorno;
891 return e ? 0 : -1;
892}
893#endif
894
895/* sendfile always needs emulation */
896static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
897{
898 ssize_t res;
899
900 if (!count)
901 return 0;
902
903#if HAVE_SENDFILE
904# if __linux
905 res = sendfile (ofd, ifd, &offset, count);
906
907# elif __freebsd
908 /*
909 * Of course, the freebsd sendfile is a dire hack with no thoughts
910 * wasted on making it similar to other I/O functions.
911 */
912 {
913 off_t sbytes;
914 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
915
916 if (res < 0 && sbytes)
917 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
918 res = sbytes;
919 }
920
921# elif __hpux
922 res = sendfile (ofd, ifd, offset, count, 0, 0);
923
924# elif __solaris
925 {
926 struct sendfilevec vec;
927 size_t sbytes;
928
929 vec.sfv_fd = ifd;
930 vec.sfv_flag = 0;
931 vec.sfv_off = offset;
932 vec.sfv_len = count;
933
934 res = sendfilev (ofd, &vec, 1, &sbytes);
935
936 if (res < 0 && sbytes)
937 res = sbytes;
938 }
939
940# endif
941#else
942 res = -1;
943 errno = ENOSYS;
944#endif
945
946 if (res < 0
947 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
948#if __solaris
949 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
950#endif
951 )
952 )
953 {
954 /* emulate sendfile. this is a major pain in the ass */
955 dBUF;
956
957 res = 0;
958
959 while (count)
960 {
961 ssize_t cnt;
962
963 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
964
965 if (cnt <= 0)
966 {
967 if (cnt && !res) res = -1;
968 break;
969 }
970
971 cnt = write (ofd, aio_buf, cnt);
972
973 if (cnt <= 0)
974 {
975 if (cnt && !res) res = -1;
976 break;
977 }
978
979 offset += cnt;
980 res += cnt;
981 count -= cnt;
982 }
983 }
984
985 return res;
986}
987
988/* read a full directory */
989static void scandir_ (aio_req req, worker *self)
990{
991 DIR *dirp;
992 union
993 {
994 struct dirent d;
995 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
996 } *u;
997 struct dirent *entp;
998 char *name, *names;
999 int memlen = 4096;
1000 int memofs = 0;
1001 int res = 0;
1002 int errorno;
1003
1004 LOCK (wrklock);
1005 self->dirp = dirp = opendir (req->ptr1);
1006 self->dbuf = u = malloc (sizeof (*u));
1007 req->flags |= FLAG_PTR2_FREE;
1008 req->ptr2 = names = malloc (memlen);
1009 UNLOCK (wrklock);
1010
1011 if (dirp && u && names)
1012 for (;;)
1013 {
1014 errno = 0;
1015 readdir_r (dirp, &u->d, &entp);
1016
1017 if (!entp)
1018 break;
1019
1020 name = entp->d_name;
1021
1022 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1023 {
1024 int len = strlen (name) + 1;
1025
1026 res++;
1027
1028 while (memofs + len > memlen)
1029 {
1030 memlen *= 2;
1031 LOCK (wrklock);
1032 req->ptr2 = names = realloc (names, memlen);
1033 UNLOCK (wrklock);
1034
1035 if (!names)
1036 break;
1037 }
1038
1039 memcpy (names + memofs, name, len);
1040 memofs += len;
1041 }
1042 }
1043
1044 if (errno)
1045 res = -1;
1046
1047 req->result = res;
1048}
1049
1050/*****************************************************************************/
1051
1052static void *aio_proc (void *thr_arg)
1053{
1054 aio_req req;
1055 struct timespec ts;
1056 worker *self = (worker *)thr_arg;
1057
1058 /* try to distribute timeouts somewhat evenly */
1059 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1060 * (1000000000UL / 1024UL);
1061
1062 for (;;)
1063 {
1064 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065
1066 LOCK (reqlock);
1067
1068 for (;;)
1069 {
1070 self->req = req = reqq_shift (&req_queue);
1071
1072 if (req)
1073 break;
1074
1075 ++idle;
1076
1077 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1078 == ETIMEDOUT)
1079 {
1080 if (idle > max_idle)
1081 {
1082 --idle;
1083 UNLOCK (reqlock);
1084 LOCK (wrklock);
1085 --started;
1086 UNLOCK (wrklock);
1087 goto quit;
1088 }
1089
1090 /* we are allowed to idle, so do so without any timeout */
1091 pthread_cond_wait (&reqwait, &reqlock);
1092 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093 }
1094
1095 --idle;
1096 }
1097
1098 --nready;
1099
1100 UNLOCK (reqlock);
1101
1102 errno = 0; /* strictly unnecessary */
1103
1104 if (!(req->flags & FLAG_CANCELLED))
1105 switch (req->type)
1106 {
1107 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1108 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1109
1110 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112
1113 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1116
1117 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118 case REQ_CLOSE: req->result = close (req->int1); break;
1119 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1121 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1126
1127 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128 case REQ_FSYNC: req->result = fsync (req->int1); break;
1129 case REQ_READDIR: scandir_ (req, self); break;
1130
1131 case REQ_BUSY:
1132 {
1133 struct timeval tv;
1134
1135 tv.tv_sec = req->int1;
1136 tv.tv_usec = req->int2;
1137
1138 req->result = select (0, 0, 0, 0, &tv);
1139 }
1140
1141 case REQ_GROUP:
1142 case REQ_NOP:
1143 break;
1144
1145 case REQ_QUIT:
1146 goto quit;
1147
1148 default:
1149 req->result = ENOSYS;
1150 break;
1151 }
1152
1153 req->errorno = errno;
1154
1155 LOCK (reslock);
1156
1157 ++npending;
1158
1159 if (!reqq_push (&res_queue, req))
1160 /* write a dummy byte to the pipe so fh becomes ready */
1161 write (respipe [1], &respipe, 1);
1162
1163 self->req = 0;
1164 worker_clear (self);
1165
1166 UNLOCK (reslock);
1167 }
1168
1169quit:
1170 LOCK (wrklock);
1171 worker_free (self);
1172 UNLOCK (wrklock);
1173
1174 return 0;
1175}
1176
1177/*****************************************************************************/
1178
1179static void atfork_prepare (void)
1180{
1181 LOCK (wrklock);
1182 LOCK (reqlock);
1183 LOCK (reslock);
1184#if !HAVE_PREADWRITE
1185 LOCK (preadwritelock);
1186#endif
1187#if !HAVE_READDIR_R
1188 LOCK (readdirlock);
1189#endif
1190}
1191
1192static void atfork_parent (void)
1193{
1194#if !HAVE_READDIR_R
1195 UNLOCK (readdirlock);
1196#endif
1197#if !HAVE_PREADWRITE
1198 UNLOCK (preadwritelock);
1199#endif
1200 UNLOCK (reslock);
1201 UNLOCK (reqlock);
1202 UNLOCK (wrklock);
1203}
1204
1205static void atfork_child (void)
1206{
1207 aio_req prv;
1208
1209 while (prv = reqq_shift (&req_queue))
1210 req_free (prv);
1211
1212 while (prv = reqq_shift (&res_queue))
1213 req_free (prv);
1214
1215 while (wrk_first.next != &wrk_first)
1216 {
1217 worker *wrk = wrk_first.next;
1218
1219 if (wrk->req)
1220 req_free (wrk->req);
1221
1222 worker_clear (wrk);
1223 worker_free (wrk);
1224 }
1225
1226 started = 0;
1227 idle = 0;
1228 nreqs = 0;
1229 nready = 0;
1230 npending = 0;
1231
1232 close (respipe [0]);
1233 close (respipe [1]);
1234 create_pipe ();
1235
1236 atfork_parent ();
1237}
1238
1239#define dREQ \
1240 aio_req req; \
1241 int req_pri = next_pri; \
1242 next_pri = DEFAULT_PRI + PRI_BIAS; \
1243 \
1244 if (SvOK (callback) && !SvROK (callback)) \
1245 croak ("callback must be undef or of reference type"); \
1246 \
1247 Newz (0, req, 1, aio_cb); \
1248 if (!req) \
1249 croak ("out of memory during aio_req allocation"); \
1250 \
1251 req->callback = newSVsv (callback); \
1252 req->pri = req_pri
1253
1254#define REQ_SEND \
1255 req_send (req); \
1256 \
1257 if (GIMME_V != G_VOID) \
1258 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1259
1260MODULE = IO::AIO PACKAGE = IO::AIO 912MODULE = IO::AIO PACKAGE = IO::AIO
1261 913
1262PROTOTYPES: ENABLE 914PROTOTYPES: ENABLE
1263 915
1264BOOT: 916BOOT:
1265{ 917{
918 static const struct {
919 const char *name;
920 IV iv;
921 } *civ, const_iv[] = {
922# define const_niv(name, value) { # name, (IV) value },
923# define const_iv(name) { # name, (IV) name },
924# define const_eio(name) { # name, (IV) EIO_ ## name },
925 const_iv (EXDEV)
926 const_iv (ENOSYS)
927 const_iv (O_RDONLY)
928 const_iv (O_WRONLY)
929 const_iv (O_RDWR)
930 const_iv (O_CREAT)
931 const_iv (O_TRUNC)
932 const_iv (O_EXCL)
933 const_iv (O_APPEND)
934
935 const_iv (O_ASYNC)
936 const_iv (O_DIRECT)
937 const_iv (O_NOATIME)
938
939 const_iv (O_CLOEXEC)
940 const_iv (O_NOCTTY)
941 const_iv (O_NOFOLLOW)
942 const_iv (O_NONBLOCK)
943 const_iv (O_EXEC)
944 const_iv (O_SEARCH)
945 const_iv (O_DIRECTORY)
946 const_iv (O_DSYNC)
947 const_iv (O_RSYNC)
948 const_iv (O_SYNC)
949 const_iv (O_TTY_INIT)
950
951 const_iv (S_IFIFO)
952 const_iv (S_IFCHR)
953 const_iv (S_IFBLK)
954 const_iv (S_IFLNK)
955 const_iv (S_IFREG)
956 const_iv (S_IFDIR)
957 const_iv (S_IFWHT)
958 const_iv (S_IFSOCK)
959 const_iv (S_IFMT)
960
961 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
962 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
963 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
964 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
965 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
966 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
967
968 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
969 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
970 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
971 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
972 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
973
974 const_iv (ST_RDONLY)
975 const_iv (ST_NOSUID)
976 const_iv (ST_NODEV)
977 const_iv (ST_NOEXEC)
978 const_iv (ST_SYNCHRONOUS)
979 const_iv (ST_MANDLOCK)
980 const_iv (ST_WRITE)
981 const_iv (ST_APPEND)
982 const_iv (ST_IMMUTABLE)
983 const_iv (ST_NOATIME)
984 const_iv (ST_NODIRATIME)
985 const_iv (ST_RELATIME)
986
987 const_iv (PROT_NONE)
988 const_iv (PROT_EXEC)
989 const_iv (PROT_READ)
990 const_iv (PROT_WRITE)
991
992 /*const_iv (MAP_FIXED)*/
993 const_iv (MAP_PRIVATE)
994 const_iv (MAP_SHARED)
995 const_iv (MAP_ANONYMOUS)
996
997 /* linuxish */
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_LOCKED)
1000 const_iv (MAP_NORESERVE)
1001 const_iv (MAP_POPULATE)
1002 const_iv (MAP_NONBLOCK)
1003
1004 const_eio (MCL_FUTURE)
1005 const_eio (MCL_CURRENT)
1006
1007 const_eio (MS_ASYNC)
1008 const_eio (MS_INVALIDATE)
1009 const_eio (MS_SYNC)
1010
1011 const_eio (MT_MODIFY)
1012
1013 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1014 const_eio (SYNC_FILE_RANGE_WRITE)
1015 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1016
1017 const_eio (FALLOC_FL_KEEP_SIZE)
1018
1019 const_eio (READDIR_DENTS)
1020 const_eio (READDIR_DIRS_FIRST)
1021 const_eio (READDIR_STAT_ORDER)
1022 const_eio (READDIR_FOUND_UNKNOWN)
1023
1024 const_eio (DT_UNKNOWN)
1025 const_eio (DT_FIFO)
1026 const_eio (DT_CHR)
1027 const_eio (DT_DIR)
1028 const_eio (DT_BLK)
1029 const_eio (DT_REG)
1030 const_eio (DT_LNK)
1031 const_eio (DT_SOCK)
1032 const_eio (DT_WHT)
1033 };
1034
1266 HV *stash = gv_stashpv ("IO::AIO", 1); 1035 aio_stash = gv_stashpv ("IO::AIO" , 1);
1036 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1037 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1038 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1267 1039
1268 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1040 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1269 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1041 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1270 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1273 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1274 1042
1275 create_pipe (); 1043 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1276 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1277}
1278 1044
1045 reinit ();
1046}
1047
1279void 1048void
1049reinit ()
1050 PROTOTYPE:
1051
1052void
1280max_poll_reqs (int nreqs) 1053max_poll_reqs (unsigned int nreqs)
1281 PROTOTYPE: $ 1054 PROTOTYPE: $
1282 CODE: 1055 CODE:
1283 max_poll_reqs = nreqs; 1056 eio_set_max_poll_reqs (nreqs);
1284 1057
1285void 1058void
1286max_poll_time (double nseconds) 1059max_poll_time (double nseconds)
1287 PROTOTYPE: $ 1060 PROTOTYPE: $
1288 CODE: 1061 CODE:
1289 max_poll_time = nseconds * AIO_TICKS; 1062 eio_set_max_poll_time (nseconds);
1290 1063
1291void 1064void
1292min_parallel (int nthreads) 1065min_parallel (unsigned int nthreads)
1293 PROTOTYPE: $
1294
1295void
1296max_parallel (int nthreads)
1297 PROTOTYPE: $
1298
1299void
1300max_idle (int nthreads)
1301 PROTOTYPE: $ 1066 PROTOTYPE: $
1302 CODE: 1067 CODE:
1303 set_max_idle (nthreads); 1068 eio_set_min_parallel (nthreads);
1304 1069
1305int 1070void
1306max_outstanding (int maxreqs) 1071max_parallel (unsigned int nthreads)
1307 PROTOTYPE: $ 1072 PROTOTYPE: $
1308 CODE: 1073 CODE:
1309 RETVAL = max_outstanding; 1074 eio_set_max_parallel (nthreads);
1075
1076void
1077max_idle (unsigned int nthreads)
1078 PROTOTYPE: $
1079 CODE:
1080 eio_set_max_idle (nthreads);
1081
1082void
1083idle_timeout (unsigned int seconds)
1084 PROTOTYPE: $
1085 CODE:
1086 eio_set_idle_timeout (seconds);
1087
1088void
1089max_outstanding (unsigned int maxreqs)
1090 PROTOTYPE: $
1091 CODE:
1310 max_outstanding = maxreqs; 1092 max_outstanding = maxreqs;
1311 OUTPUT:
1312 RETVAL
1313 1093
1314void 1094void
1315aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1095aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1316 SV8 * pathname
1317 int flags
1318 int mode
1319 SV * callback
1320 PROTOTYPE: $$$;$
1321 PPCODE: 1096 PPCODE:
1322{ 1097{
1323 dREQ; 1098 dREQ;
1324 1099
1100 req->type = EIO_WD_OPEN;
1101 req_set_path1 (req, pathname);
1102
1103 REQ_SEND;
1104}
1105
1106void
1107aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1108 PPCODE:
1109{
1110 dREQ;
1111
1325 req->type = REQ_OPEN; 1112 req->type = EIO_OPEN;
1326 req->sv1 = newSVsv (pathname); 1113 req_set_path1 (req, pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags; 1114 req->int1 = flags;
1329 req->mode = mode; 1115 req->int2 = mode;
1330 1116
1331 REQ_SEND; 1117 REQ_SEND;
1332} 1118}
1333 1119
1334void 1120void
1335aio_close (fh,callback=&PL_sv_undef) 1121aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1336 SV * fh
1337 SV * callback
1338 PROTOTYPE: $;$
1339 ALIAS: 1122 ALIAS:
1340 aio_close = REQ_CLOSE
1341 aio_fsync = REQ_FSYNC 1123 aio_fsync = EIO_FSYNC
1342 aio_fdatasync = REQ_FDATASYNC 1124 aio_fdatasync = EIO_FDATASYNC
1125 aio_syncfs = EIO_SYNCFS
1343 PPCODE: 1126 PPCODE:
1344{ 1127{
1128 int fd = s_fileno_croak (fh, 0);
1345 dREQ; 1129 dREQ;
1346 1130
1347 req->type = ix; 1131 req->type = ix;
1348 req->fh = newSVsv (fh); 1132 req->sv1 = newSVsv (fh);
1349 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1133 req->int1 = fd;
1350 1134
1351 REQ_SEND (req); 1135 REQ_SEND (req);
1352} 1136}
1353 1137
1354void 1138void
1139aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1140 PPCODE:
1141{
1142 int fd = s_fileno_croak (fh, 0);
1143 dREQ;
1144
1145 req->type = EIO_SYNC_FILE_RANGE;
1146 req->sv1 = newSVsv (fh);
1147 req->int1 = fd;
1148 req->offs = offset;
1149 req->size = nbytes;
1150 req->int2 = flags;
1151
1152 REQ_SEND (req);
1153}
1154
1155void
1156aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1157 PPCODE:
1158{
1159 int fd = s_fileno_croak (fh, 0);
1160 dREQ;
1161
1162 req->type = EIO_FALLOCATE;
1163 req->sv1 = newSVsv (fh);
1164 req->int1 = fd;
1165 req->int2 = mode;
1166 req->offs = offset;
1167 req->size = len;
1168
1169 REQ_SEND (req);
1170}
1171
1172void
1173aio_close (SV *fh, SV *callback=&PL_sv_undef)
1174 PPCODE:
1175{
1176 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1177 int fd = s_fileno_croak (fh, 0);
1178 dREQ;
1179
1180 if (expect_false (close_fd < 0))
1181 {
1182 int pipefd [2];
1183
1184 if (
1185#ifdef _WIN32
1186 _pipe (pipefd, 1, _O_BINARY) < 0
1187#else
1188 pipe (pipefd) < 0
1189 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1190#endif
1191 || close (pipefd [1]) < 0
1192 )
1193 abort (); /*D*/
1194
1195 close_fd = pipefd [0];
1196 }
1197
1198 req->type = EIO_DUP2;
1199 req->int1 = close_fd;
1200 req->sv2 = newSVsv (fh);
1201 req->int2 = fd;
1202
1203 REQ_SEND (req);
1204}
1205
1206void
1355aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1207aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1356 SV * fh
1357 UV offset
1358 UV length
1359 SV8 * data
1360 UV dataoffset
1361 SV * callback
1362 ALIAS: 1208 ALIAS:
1363 aio_read = REQ_READ 1209 aio_read = EIO_READ
1364 aio_write = REQ_WRITE 1210 aio_write = EIO_WRITE
1365 PROTOTYPE: $$$$$;$
1366 PPCODE: 1211 PPCODE:
1367{ 1212{
1368 STRLEN svlen; 1213 STRLEN svlen;
1214 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1369 char *svptr = SvPVbyte (data, svlen); 1215 char *svptr = SvPVbyte (data, svlen);
1370 1216 UV len = SvUV (length);
1371 SvUPGRADE (data, SVt_PV);
1372 SvPOK_on (data);
1373 1217
1374 if (dataoffset < 0) 1218 if (dataoffset < 0)
1375 dataoffset += svlen; 1219 dataoffset += svlen;
1376 1220
1377 if (dataoffset < 0 || dataoffset > svlen) 1221 if (dataoffset < 0 || dataoffset > svlen)
1378 croak ("data offset outside of string"); 1222 croak ("dataoffset outside of data scalar");
1379 1223
1380 if (ix == REQ_WRITE) 1224 if (ix == EIO_WRITE)
1381 { 1225 {
1382 /* write: check length and adjust. */ 1226 /* write: check length and adjust. */
1383 if (length < 0 || length + dataoffset > svlen) 1227 if (!SvOK (length) || len + dataoffset > svlen)
1384 length = svlen - dataoffset; 1228 len = svlen - dataoffset;
1385 } 1229 }
1386 else 1230 else
1387 { 1231 {
1388 /* read: grow scalar as necessary */ 1232 /* read: check type and grow scalar as necessary */
1233 SvUPGRADE (data, SVt_PV);
1389 svptr = SvGROW (data, length + dataoffset); 1234 svptr = SvGROW (data, len + dataoffset + 1);
1390 } 1235 }
1391
1392 if (length < 0)
1393 croak ("length must not be negative");
1394 1236
1395 { 1237 {
1396 dREQ; 1238 dREQ;
1397 1239
1398 req->type = ix; 1240 req->type = ix;
1399 req->fh = newSVsv (fh); 1241 req->sv1 = newSVsv (fh);
1400 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1242 req->int1 = fd;
1401 : IoOFP (sv_2io (fh))); 1243 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1402 req->offs = offset;
1403 req->size = length; 1244 req->size = len;
1404 req->sv1 = SvREFCNT_inc (data); 1245 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr1 = (char *)svptr + dataoffset; 1246 req->ptr2 = (char *)svptr + dataoffset;
1406 req->stroffset = dataoffset; 1247 req->stroffset = dataoffset;
1407 1248
1408 if (!SvREADONLY (data)) 1249 if (!SvREADONLY (data))
1409 { 1250 {
1410 SvREADONLY_on (data); 1251 SvREADONLY_on (data);
1411 req->flags |= FLAG_SV1_RO_OFF; 1252 req->flags |= FLAG_SV2_RO_OFF;
1412 } 1253 }
1413 1254
1414 REQ_SEND; 1255 REQ_SEND;
1415 } 1256 }
1416} 1257}
1417 1258
1418void 1259void
1419aio_readlink (path,callback=&PL_sv_undef) 1260aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1420 SV8 * path 1261 ALIAS:
1421 SV * callback 1262 aio_readlink = EIO_READLINK
1422 PROTOTYPE: $$;$ 1263 aio_realpath = EIO_REALPATH
1423 PPCODE: 1264 PPCODE:
1424{ 1265{
1425 SV *data;
1426 dREQ; 1266 dREQ;
1427 1267
1428 data = newSV (NAME_MAX);
1429 SvPOK_on (data);
1430
1431 req->type = REQ_READLINK; 1268 req->type = ix;
1432 req->fh = newSVsv (path); 1269 req_set_path1 (req, pathname);
1433 req->ptr2 = SvPVbyte_nolen (req->fh);
1434 req->sv1 = data;
1435 req->ptr1 = SvPVbyte_nolen (data);
1436 1270
1437 REQ_SEND; 1271 REQ_SEND;
1438} 1272}
1439 1273
1440void 1274void
1441aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1275aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1442 SV * out_fh
1443 SV * in_fh
1444 UV in_offset
1445 UV length
1446 SV * callback
1447 PROTOTYPE: $$$$;$
1448 PPCODE: 1276 PPCODE:
1449{ 1277{
1278 int ifd = s_fileno_croak (in_fh , 0);
1279 int ofd = s_fileno_croak (out_fh, 1);
1450 dREQ; 1280 dREQ;
1451 1281
1452 req->type = REQ_SENDFILE; 1282 req->type = EIO_SENDFILE;
1453 req->fh = newSVsv (out_fh); 1283 req->sv1 = newSVsv (out_fh);
1454 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1284 req->int1 = ofd;
1455 req->sv2 = newSVsv (in_fh); 1285 req->sv2 = newSVsv (in_fh);
1456 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1286 req->int2 = ifd;
1457 req->offs = in_offset; 1287 req->offs = in_offset;
1458 req->size = length; 1288 req->size = length;
1459 1289
1460 REQ_SEND; 1290 REQ_SEND;
1461} 1291}
1462 1292
1463void 1293void
1464aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1294aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1465 SV * fh
1466 UV offset
1467 IV length
1468 SV * callback
1469 PROTOTYPE: $$$;$
1470 PPCODE: 1295 PPCODE:
1471{ 1296{
1297 int fd = s_fileno_croak (fh, 0);
1472 dREQ; 1298 dREQ;
1473 1299
1474 req->type = REQ_READAHEAD; 1300 req->type = EIO_READAHEAD;
1475 req->fh = newSVsv (fh); 1301 req->sv1 = newSVsv (fh);
1476 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1302 req->int1 = fd;
1477 req->offs = offset; 1303 req->offs = offset;
1478 req->size = length; 1304 req->size = length;
1479 1305
1480 REQ_SEND; 1306 REQ_SEND;
1481} 1307}
1482 1308
1483void 1309void
1484aio_stat (fh_or_path,callback=&PL_sv_undef) 1310aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1485 SV8 * fh_or_path
1486 SV * callback
1487 ALIAS: 1311 ALIAS:
1488 aio_stat = REQ_STAT 1312 aio_stat = EIO_STAT
1489 aio_lstat = REQ_LSTAT 1313 aio_lstat = EIO_LSTAT
1314 aio_statvfs = EIO_STATVFS
1490 PPCODE: 1315 PPCODE:
1491{ 1316{
1492 dREQ; 1317 dREQ;
1493 1318
1494 req->ptr2 = malloc (sizeof (Stat_t)); 1319 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1495 if (!req->ptr2)
1496 {
1497 req_free (req);
1498 croak ("out of memory during aio_stat statdata allocation");
1499 }
1500
1501 req->flags |= FLAG_PTR2_FREE;
1502
1503 if (SvPOK (fh_or_path))
1504 {
1505 req->type = ix;
1506 req->sv1 = newSVsv (fh_or_path);
1507 req->ptr1 = SvPVbyte_nolen (req->sv1);
1508 }
1509 else
1510 {
1511 req->type = REQ_FSTAT;
1512 req->fh = newSVsv (fh_or_path);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514 }
1515 1320
1516 REQ_SEND; 1321 REQ_SEND;
1517} 1322}
1518 1323
1324UV
1325major (UV dev)
1326 ALIAS:
1327 minor = 1
1328 CODE:
1329 RETVAL = ix ? major (dev) : minor (dev);
1330 OUTPUT:
1331 RETVAL
1332
1333UV
1334makedev (UV maj, UV min)
1335 CODE:
1336 RETVAL = makedev (maj, min);
1337 OUTPUT:
1338 RETVAL
1339
1519void 1340void
1341aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1342 PPCODE:
1343{
1344 dREQ;
1345
1346 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1347 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1348 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1349
1350 REQ_SEND;
1351}
1352
1353void
1354aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1360 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1361
1362 REQ_SEND;
1363}
1364
1365void
1366aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1367 PPCODE:
1368{
1369 dREQ;
1370
1371 req->int2 = mode;
1372 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1373
1374 REQ_SEND;
1375}
1376
1377void
1378aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1379 PPCODE:
1380{
1381 dREQ;
1382
1383 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1384 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1385 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1392 PPCODE:
1393{
1394 dREQ;
1395
1396 req->type = EIO_READDIR;
1397 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1398
1399 if (flags & EIO_READDIR_DENTS)
1400 req->int1 |= EIO_READDIR_CUSTOM2;
1401
1402 req_set_path1 (req, pathname);
1403
1404 REQ_SEND;
1405}
1406
1407void
1408aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1409 PPCODE:
1410{
1411 dREQ;
1412
1413 req->type = EIO_MKDIR;
1414 req->int2 = mode;
1415 req_set_path1 (req, pathname);
1416
1417 REQ_SEND;
1418}
1419
1420void
1520aio_unlink (pathname,callback=&PL_sv_undef) 1421aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1521 SV8 * pathname
1522 SV * callback
1523 ALIAS: 1422 ALIAS:
1524 aio_unlink = REQ_UNLINK 1423 aio_unlink = EIO_UNLINK
1525 aio_rmdir = REQ_RMDIR 1424 aio_rmdir = EIO_RMDIR
1526 aio_readdir = REQ_READDIR 1425 aio_readdir = EIO_READDIR
1527 PPCODE: 1426 PPCODE:
1528{ 1427{
1529 dREQ; 1428 dREQ;
1530 1429
1531 req->type = ix; 1430 req->type = ix;
1532 req->sv1 = newSVsv (pathname); 1431 req_set_path1 (req, pathname);
1533 req->ptr1 = SvPVbyte_nolen (req->sv1);
1534 1432
1535 REQ_SEND; 1433 REQ_SEND;
1536} 1434}
1537 1435
1538void 1436void
1539aio_link (oldpath,newpath,callback=&PL_sv_undef) 1437aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1540 SV8 * oldpath
1541 SV8 * newpath
1542 SV * callback
1543 ALIAS: 1438 ALIAS:
1544 aio_link = REQ_LINK 1439 aio_link = EIO_LINK
1545 aio_symlink = REQ_SYMLINK 1440 aio_symlink = EIO_SYMLINK
1546 aio_rename = REQ_RENAME 1441 aio_rename = EIO_RENAME
1547 PPCODE: 1442 PPCODE:
1548{ 1443{
1444 eio_wd wd2 = 0;
1549 dREQ; 1445 dREQ;
1550 1446
1551 req->type = ix; 1447 req->type = ix;
1552 req->fh = newSVsv (oldpath); 1448 req_set_path1 (req, oldpath);
1553 req->ptr2 = SvPVbyte_nolen (req->fh); 1449 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1554 req->sv1 = newSVsv (newpath); 1450 req->int3 = (long)wd2;
1555 req->ptr1 = SvPVbyte_nolen (req->sv1);
1556 1451
1557 REQ_SEND; 1452 REQ_SEND;
1558} 1453}
1559 1454
1560void 1455void
1561aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1456aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1562 SV8 * pathname
1563 SV * callback
1564 UV mode
1565 UV dev
1566 PPCODE: 1457 PPCODE:
1567{ 1458{
1568 dREQ; 1459 dREQ;
1569 1460
1570 req->type = REQ_MKNOD; 1461 req->type = EIO_MKNOD;
1571 req->sv1 = newSVsv (pathname);
1572 req->ptr1 = SvPVbyte_nolen (req->sv1);
1573 req->mode = (mode_t)mode; 1462 req->int2 = (mode_t)mode;
1574 req->offs = dev; 1463 req->offs = dev;
1464 req_set_path1 (req, pathname);
1575 1465
1576 REQ_SEND; 1466 REQ_SEND;
1577} 1467}
1578 1468
1579void 1469void
1470aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1471 ALIAS:
1472 aio_mtouch = EIO_MTOUCH
1473 aio_msync = EIO_MSYNC
1474 PPCODE:
1475{
1476 STRLEN svlen;
1477 char *svptr = SvPVbyte (data, svlen);
1478 UV len = SvUV (length);
1479
1480 if (offset < 0)
1481 offset += svlen;
1482
1483 if (offset < 0 || offset > svlen)
1484 croak ("offset outside of scalar");
1485
1486 if (!SvOK (length) || len + offset > svlen)
1487 len = svlen - offset;
1488
1489 {
1490 dREQ;
1491
1492 req->type = ix;
1493 req->sv2 = SvREFCNT_inc (data);
1494 req->ptr2 = (char *)svptr + offset;
1495 req->size = len;
1496 req->int1 = flags;
1497
1498 REQ_SEND;
1499 }
1500}
1501
1502void
1503aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1504 PPCODE:
1505{
1506 STRLEN svlen;
1507 char *svptr = SvPVbyte (data, svlen);
1508 UV len = SvUV (length);
1509
1510 if (offset < 0)
1511 offset += svlen;
1512
1513 if (offset < 0 || offset > svlen)
1514 croak ("offset outside of scalar");
1515
1516 if (!SvOK (length) || len + offset > svlen)
1517 len = svlen - offset;
1518
1519 {
1520 dREQ;
1521
1522 req->type = EIO_MLOCK;
1523 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr2 = (char *)svptr + offset;
1525 req->size = len;
1526
1527 REQ_SEND;
1528 }
1529}
1530
1531void
1532aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1533 PPCODE:
1534{
1535 dREQ;
1536
1537 req->type = EIO_MLOCKALL;
1538 req->int1 = flags;
1539
1540 REQ_SEND;
1541}
1542
1543void
1580aio_busy (delay,callback=&PL_sv_undef) 1544aio_busy (double delay, SV *callback=&PL_sv_undef)
1581 double delay
1582 SV * callback
1583 PPCODE: 1545 PPCODE:
1584{ 1546{
1585 dREQ; 1547 dREQ;
1586 1548
1587 req->type = REQ_BUSY; 1549 req->type = EIO_BUSY;
1588 req->int1 = delay < 0. ? 0 : delay; 1550 req->nv1 = delay < 0. ? 0. : delay;
1589 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1590 1551
1591 REQ_SEND; 1552 REQ_SEND;
1592} 1553}
1593 1554
1594void 1555void
1595aio_group (callback=&PL_sv_undef) 1556aio_group (SV *callback=&PL_sv_undef)
1596 SV * callback
1597 PROTOTYPE: ;$
1598 PPCODE: 1557 PPCODE:
1599{ 1558{
1600 dREQ; 1559 dREQ;
1601 1560
1602 req->type = REQ_GROUP; 1561 req->type = EIO_GROUP;
1603 1562
1604 req_send (req); 1563 req_submit (req);
1605 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1564 XPUSHs (req_sv (req, aio_grp_stash));
1606} 1565}
1607 1566
1608void 1567void
1609aio_nop (callback=&PL_sv_undef) 1568aio_nop (SV *callback=&PL_sv_undef)
1610 SV * callback 1569 ALIAS:
1570 aio_nop = EIO_NOP
1571 aio_sync = EIO_SYNC
1611 PPCODE: 1572 PPCODE:
1612{ 1573{
1613 dREQ; 1574 dREQ;
1614 1575
1615 req->type = REQ_NOP; 1576 req->type = ix;
1616 1577
1617 REQ_SEND; 1578 REQ_SEND;
1618} 1579}
1619 1580
1620int 1581int
1621aioreq_pri (int pri = 0) 1582aioreq_pri (int pri = 0)
1622 PROTOTYPE: ;$
1623 CODE: 1583 CODE:
1624 RETVAL = next_pri - PRI_BIAS; 1584 RETVAL = next_pri;
1625 if (items > 0) 1585 if (items > 0)
1626 { 1586 {
1627 if (pri < PRI_MIN) pri = PRI_MIN; 1587 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1628 if (pri > PRI_MAX) pri = PRI_MAX; 1588 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1629 next_pri = pri + PRI_BIAS; 1589 next_pri = pri;
1630 } 1590 }
1631 OUTPUT: 1591 OUTPUT:
1632 RETVAL 1592 RETVAL
1633 1593
1634void 1594void
1635aioreq_nice (int nice = 0) 1595aioreq_nice (int nice = 0)
1636 CODE: 1596 CODE:
1637 nice = next_pri - nice; 1597 nice = next_pri - nice;
1638 if (nice < PRI_MIN) nice = PRI_MIN; 1598 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1639 if (nice > PRI_MAX) nice = PRI_MAX; 1599 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1640 next_pri = nice + PRI_BIAS; 1600 next_pri = nice;
1641 1601
1642void 1602void
1643flush () 1603flush ()
1644 PROTOTYPE:
1645 CODE: 1604 CODE:
1646 while (nreqs) 1605 while (eio_nreqs ())
1647 { 1606 {
1648 poll_wait (); 1607 poll_wait ();
1649 poll_cb (); 1608 poll_cb ();
1650 } 1609 }
1651 1610
1652int 1611int
1653poll() 1612poll ()
1654 PROTOTYPE:
1655 CODE: 1613 CODE:
1656 poll_wait (); 1614 poll_wait ();
1657 RETVAL = poll_cb (); 1615 RETVAL = poll_cb ();
1658 OUTPUT: 1616 OUTPUT:
1659 RETVAL 1617 RETVAL
1660 1618
1661int 1619int
1662poll_fileno() 1620poll_fileno ()
1663 PROTOTYPE:
1664 CODE: 1621 CODE:
1665 RETVAL = respipe [0]; 1622 RETVAL = s_epipe_fd (&respipe);
1666 OUTPUT: 1623 OUTPUT:
1667 RETVAL 1624 RETVAL
1668 1625
1669int 1626int
1670poll_cb(...) 1627poll_cb (...)
1671 PROTOTYPE: 1628 PROTOTYPE:
1672 CODE: 1629 CODE:
1673 RETVAL = poll_cb (); 1630 RETVAL = poll_cb ();
1674 OUTPUT: 1631 OUTPUT:
1675 RETVAL 1632 RETVAL
1676 1633
1677void 1634void
1678poll_wait() 1635poll_wait ()
1679 PROTOTYPE:
1680 CODE: 1636 CODE:
1681 poll_wait (); 1637 poll_wait ();
1682 1638
1683int 1639int
1684nreqs() 1640nreqs ()
1685 PROTOTYPE:
1686 CODE: 1641 CODE:
1687 RETVAL = nreqs; 1642 RETVAL = eio_nreqs ();
1688 OUTPUT: 1643 OUTPUT:
1689 RETVAL 1644 RETVAL
1690 1645
1691int 1646int
1692nready() 1647nready ()
1693 PROTOTYPE:
1694 CODE: 1648 CODE:
1695 RETVAL = get_nready (); 1649 RETVAL = eio_nready ();
1696 OUTPUT: 1650 OUTPUT:
1697 RETVAL 1651 RETVAL
1698 1652
1699int 1653int
1700npending() 1654npending ()
1701 PROTOTYPE:
1702 CODE: 1655 CODE:
1703 RETVAL = get_npending (); 1656 RETVAL = eio_npending ();
1704 OUTPUT: 1657 OUTPUT:
1705 RETVAL 1658 RETVAL
1706 1659
1707int 1660int
1708nthreads() 1661nthreads ()
1709 PROTOTYPE:
1710 CODE: 1662 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1663 RETVAL = eio_nthreads ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1664 OUTPUT:
1715 RETVAL 1665 RETVAL
1716 1666
1667int
1668fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1669 CODE:
1670 RETVAL = posix_fadvise (fh, offset, length, advice);
1671 OUTPUT:
1672 RETVAL
1673
1674IV
1675sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1676 CODE:
1677 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678 OUTPUT:
1679 RETVAL
1680
1681void
1682mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1683 PPCODE:
1684 sv_unmagic (scalar, MMAP_MAGIC);
1685{
1686 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688 if (addr == (void *)-1)
1689 XSRETURN_NO;
1690
1691 sv_force_normal (scalar);
1692
1693 /* we store the length in mg_obj, as namlen is I32 :/ */
1694 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695 ->mg_obj = (SV *)length;
1696
1697 SvUPGRADE (scalar, SVt_PV); /* nop... */
1698
1699 if (!(prot & PROT_WRITE))
1700 SvREADONLY_on (scalar);
1701
1702 if (SvLEN (scalar))
1703 Safefree (SvPVX (scalar));
1704
1705 SvPVX (scalar) = (char *)addr;
1706 SvCUR_set (scalar, length);
1707 SvLEN_set (scalar, 0);
1708 SvPOK_only (scalar);
1709
1710 XSRETURN_YES;
1711}
1712
1713void
1714munmap (SV *scalar)
1715 CODE:
1716 sv_unmagic (scalar, MMAP_MAGIC);
1717
1718int
1719madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1720 ALIAS:
1721 mprotect = 1
1722 CODE:
1723{
1724 STRLEN svlen;
1725 void *addr = SvPVbyte (scalar, svlen);
1726 size_t len = SvUV (length);
1727
1728 if (offset < 0)
1729 offset += svlen;
1730
1731 if (offset < 0 || offset > svlen)
1732 croak ("offset outside of scalar");
1733
1734 if (!SvOK (length) || len + offset > svlen)
1735 len = svlen - offset;
1736
1737 addr = (void *)(((intptr_t)addr) + offset);
1738 eio_page_align (&addr, &len);
1739
1740 switch (ix)
1741 {
1742 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1743 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1744 }
1745}
1746 OUTPUT:
1747 RETVAL
1748
1749int
1750munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1751 CODE:
1752{
1753 STRLEN svlen;
1754 void *addr = SvPVbyte (scalar, svlen);
1755 size_t len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 addr = (void *)(((intptr_t)addr) + offset);
1767 eio_page_align (&addr, &len);
1768#if _POSIX_MEMLOCK_RANGE
1769 RETVAL = munlock (addr, len);
1770#else
1771 RETVAL = ((errno = ENOSYS), -1);
1772#endif
1773}
1774 OUTPUT:
1775 RETVAL
1776
1777int
1778munlockall ()
1779 CODE:
1780#if _POSIX_MEMLOCK
1781 munlockall ();
1782#else
1783 RETVAL = -1;
1784 errno = ENOSYS;
1785#endif
1786 OUTPUT:
1787 RETVAL
1788
1789void _on_next_submit (SV *cb)
1790 CODE:
1791 SvREFCNT_dec (on_next_submit);
1792 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1793
1717PROTOTYPES: DISABLE 1794PROTOTYPES: DISABLE
1795
1796MODULE = IO::AIO PACKAGE = IO::AIO::WD
1797
1798BOOT:
1799{
1800 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1801 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1802}
1803
1804void
1805DESTROY (SV *self)
1806 CODE:
1807{
1808 aio_wd wd = SvAIO_WD (self);
1809#if HAVE_AT
1810 {
1811 SV *callback = &PL_sv_undef;
1812 dREQ; /* clobbers next_pri :/ */
1813 next_pri = req->pri; /* restore next_pri */
1814 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1815 req->type = EIO_WD_CLOSE;
1816 req->wd = wd;
1817 REQ_SEND;
1818 }
1819#else
1820 eio_wd_close_sync (wd);
1821#endif
1822}
1718 1823
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1824MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 1825
1721void 1826void
1722cancel (aio_req_ornot req) 1827cancel (aio_req_ornot req)
1723 CODE: 1828 CODE:
1724 req_cancel (req); 1829 eio_cancel (req);
1725 1830
1726void 1831void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1832cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1728 CODE: 1833 PPCODE:
1834{
1835 if (GIMME_V != G_VOID)
1836 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837
1838 if (items > 1)
1839 {
1840 SV *cb_cv =get_cb (callback);
1841
1729 SvREFCNT_dec (req->callback); 1842 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 1843 req->callback = SvREFCNT_inc (cb_cv);
1844 }
1845}
1731 1846
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1847MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 1848
1734void 1849void
1735add (aio_req grp, ...) 1850add (aio_req grp, ...)
1736 PPCODE: 1851 PPCODE:
1737{ 1852{
1738 int i; 1853 int i;
1739 aio_req req;
1740 1854
1741 if (grp->int1 == 2) 1855 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1856 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 1857
1744 for (i = 1; i < items; ++i ) 1858 for (i = 1; i < items; ++i )
1745 { 1859 {
1860 aio_req req;
1861
1746 if (GIMME_V != G_VOID) 1862 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1863 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 1864
1749 req = SvAIO_REQ (ST (i)); 1865 req = SvAIO_REQ (ST (i));
1750 1866
1751 if (req) 1867 if (req)
1752 { 1868 eio_grp_add (grp, req);
1753 ++grp->size;
1754 req->grp = grp;
1755
1756 req->grp_prev = 0;
1757 req->grp_next = grp->grp_first;
1758
1759 if (grp->grp_first)
1760 grp->grp_first->grp_prev = req;
1761
1762 grp->grp_first = req;
1763 }
1764 } 1869 }
1765} 1870}
1766 1871
1767void 1872void
1768cancel_subs (aio_req_ornot req) 1873cancel_subs (aio_req_ornot req)
… …
1777 AV *av; 1882 AV *av;
1778 1883
1779 grp->errorno = errno; 1884 grp->errorno = errno;
1780 1885
1781 av = newAV (); 1886 av = newAV ();
1887 av_extend (av, items - 1);
1782 1888
1783 for (i = 1; i < items; ++i ) 1889 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 1890 av_push (av, newSVsv (ST (i)));
1785 1891
1786 SvREFCNT_dec (grp->sv1); 1892 SvREFCNT_dec (grp->sv1);
… …
1793 grp->errorno = errorno; 1899 grp->errorno = errorno;
1794 1900
1795void 1901void
1796limit (aio_req grp, int limit) 1902limit (aio_req grp, int limit)
1797 CODE: 1903 CODE:
1798 grp->int2 = limit; 1904 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 1905
1801void 1906void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 1907feed (aio_req grp, SV *callback=&PL_sv_undef)
1803 CODE: 1908 CODE:
1804{ 1909{
1805 SvREFCNT_dec (grp->sv2); 1910 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 1911 grp->sv2 = newSVsv (callback);
1912 grp->feed = aio_grp_feed;
1807 1913
1808 if (grp->int2 <= 0) 1914 if (grp->int2 <= 0)
1809 grp->int2 = 2; 1915 grp->int2 = 2;
1810 1916
1811 aio_grp_feed (grp); 1917 eio_grp_limit (grp, grp->int2);
1812} 1918}
1813 1919

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