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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.105 by root, Sun Jul 8 11:12:15 2007 UTC vs.
Revision 1.188 by root, Sun Jul 17 04:20:04 2011 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
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
18#ifdef _WIN32 33#ifdef _WIN32
19 34
20# define SIGIO 0 35 #define EIO_STRUCT_DIRENT Direntry_t
21 typedef Direntry_t X_DIRENT;
22#undef malloc 36 #undef malloc
23#undef free 37 #undef free
24 38
25// perl overrides all those nice win32 functions 39 // perl overrides all those nice libc functions
26# undef open 40 #undef open
27# undef read 41 #undef read
28# undef write 42 #undef write
29# undef send 43 #undef send
30# undef recv 44 #undef recv
31# undef stat 45 #undef stat
46 #undef lstat
32# undef fstat 47 #undef fstat
33# define lstat stat
34# undef truncate 48 #undef truncate
35# undef ftruncate 49 #undef ftruncate
36# undef open 50 #undef open
51 #undef link
37# undef close 52 #undef close
38# undef unlink 53 #undef unlink
54 #undef mkdir
39# undef rmdir 55 #undef rmdir
40# undef rename 56 #undef rename
41# undef lseek 57 #undef lseek
42 58 #undef opendir
43# define chown(a,b,c) (errno = ENOSYS, -1) 59 #undef readdir
44# define fchown(a,b,c) (errno = ENOSYS, -1) 60 #undef closedir
45# define fchmod(a,b) (errno = ENOSYS, -1) 61 #undef chmod
46# define symlink(a,b) (errno = ENOSYS, -1) 62 #undef fchmod
47# define readlink(a,b,c) (errno = ENOSYS, -1) 63 #undef dup
48# define mknod(a,b,c) (errno = ENOSYS, -1) 64 #undef dup2
49# define truncate(a,b) (errno = ENOSYS, -1) 65 #undef abort
50# define ftruncate(fd,o) chsize ((fd), (o)) 66 #undef pipe
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 67
57#else 68#else
58 69
59# include "autoconf/config.h"
60# include <sys/time.h> 70 #include <sys/time.h>
61# include <sys/select.h> 71 #include <sys/select.h>
62# include <unistd.h> 72 #include <unistd.h>
63# include <utime.h> 73 #include <utime.h>
64# include <signal.h> 74 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 75
67#endif
68
69#if HAVE_SENDFILE
70# if __linux
71# include <sys/sendfile.h>
72# elif __freebsd
73# include <sys/socket.h>
74# include <sys/uio.h>
75# elif __hpux
76# include <sys/socket.h>
77# elif __solaris /* not yet */
78# include <sys/sendfile.h>
79# else
80# error sendfile support requested but not available
81# endif 76#endif
82#endif
83 77
84/* number of seconds after which idle threads exit */ 78#define EIO_STRUCT_STAT Stat_t
85#define IDLE_TIMEOUT 10
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif
91
92/* buffer size for various temporary buffers */
93#define AIO_BUFSIZE 65536
94 79
95/* use NV for 32 bit perls as it allows larger offsets */ 80/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 81#if IVSIZE >= 8
82# define VAL64 IV
97# define SvVAL64 SvIV 83# define SvVAL64 SvIV
84# define newSVval64 newSViv
98#else 85#else
86# define VAL64 NV
99# define SvVAL64 SvNV 87# define SvVAL64 SvNV
88# define newSVval64 newSVnv
100#endif 89#endif
101 90
102#define dBUF \ 91/*****************************************************************************/
103 char *aio_buf; \ 92
104 X_LOCK (wrklock); \ 93#if __GNUC__ >= 3
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 94# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_UNLOCK (wrklock); \ 95#else
107 if (!aio_buf) \ 96# define expect(expr,value) (expr)
108 return -1; 97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
109 103
110typedef SV SV8; /* byte-sv, used for argument-checking */ 104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
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
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
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
314
315#ifndef makedev
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
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif
111 328
112enum { 329enum {
113 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 331};
129 332
130#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132
133typedef struct aio_cb
134{
135 struct aio_cb *volatile next;
136
137 SV *callback;
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150
151 unsigned char flags;
152 unsigned char pri;
153
154 SV *self; /* the perl counterpart of this request, if any */
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
156} aio_cb;
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
166 335
167enum { 336static SV *on_next_submit;
168 PRI_MIN = -4, 337static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 338static int max_outstanding;
170 339
171 DEFAULT_PRI = 0, 340static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 341
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 342static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 343static void req_cancel (aio_req req);
376 344
345static void want_poll (void)
346{
347 /* write a dummy byte to the pipe so fh becomes ready */
348 s_epipe_signal (&respipe);
349}
350
351static void done_poll (void)
352{
353 /* read any signals sent by the worker threads */
354 s_epipe_drain (&respipe);
355}
356
377/* must be called at most once */ 357/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 358static SV *req_sv (aio_req req, HV *stash)
379{ 359{
380 if (!req->self) 360 if (!req->self)
381 { 361 {
382 req->self = (SV *)newHV (); 362 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 363 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 364 }
385 365
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 366 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 367}
388 368
389static aio_req SvAIO_REQ (SV *sv) 369static aio_req SvAIO_REQ (SV *sv)
390{ 370{
391 MAGIC *mg; 371 MAGIC *mg;
392 372
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 373 if (!SvROK (sv)
374 || (SvSTASH (SvRV (sv)) != aio_grp_stash
375 && SvSTASH (SvRV (sv)) != aio_req_stash
376 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 377 croak ("object of class IO::AIO::REQ expected");
395 378
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 379 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 380
398 return mg ? (aio_req)mg->mg_ptr : 0; 381 return mg ? (aio_req)mg->mg_ptr : 0;
399} 382}
400 383
401static void aio_grp_feed (aio_req grp) 384static void aio_grp_feed (aio_req grp)
402{ 385{
403 block_sig (); 386 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 387 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 388 dSP;
412 389
413 ENTER; 390 ENTER;
414 SAVETMPS; 391 SAVETMPS;
415 PUSHMARK (SP); 392 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 393 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 394 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 395 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 396 SPAGAIN;
420 FREETMPS; 397 FREETMPS;
421 LEAVE; 398 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 399 }
432
433 unblock_sig ();
434} 400}
435 401
436static void aio_grp_dec (aio_req grp) 402static void req_submit (eio_req *req)
437{ 403{
438 --grp->size; 404 eio_submit (req);
439 405
440 /* call feeder, if applicable */ 406 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 407 {
446 block_sig (); 408 dSP;
409 SV *cb = sv_2mortal (on_next_submit);
447 410
448 if (!req_invoke (grp)) 411 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 412
455 req_destroy (grp); 413 PUSHMARK (SP);
456 unblock_sig (); 414 PUTBACK;
415 call_sv (cb, G_DISCARD | G_EVAL);
457 } 416 }
458} 417}
459 418
460static int req_invoke (aio_req req) 419static int req_invoke (eio_req *req)
461{ 420{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 421 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 422 SvREADONLY_off (req->sv2);
466 423
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 424 if (!EIO_CANCELLED (req) && req->callback)
468 { 425 {
426 dSP;
427 static SV *sv_result_cache; /* caches the result integer SV */
428 SV *sv_result;
429
469 ENTER; 430 ENTER;
470 SAVETMPS; 431 SAVETMPS;
471 PUSHMARK (SP); 432 PUSHMARK (SP);
472 EXTEND (SP, 1); 433 EXTEND (SP, 1);
473 434
435 /* do not recreate the result IV from scratch each time */
436 if (expect_true (sv_result_cache))
437 {
438 sv_result = sv_result_cache; sv_result_cache = 0;
439 SvIV_set (sv_result, req->result);
440 SvIOK_only (sv_result);
441 }
442 else
443 {
444 sv_result = newSViv (req->result);
445 SvREADONLY_on (sv_result);
446 }
447
474 switch (req->type) 448 switch (req->type)
475 { 449 {
476 case REQ_READDIR: 450 case EIO_READDIR:
477 { 451 {
478 SV *rv = &PL_sv_undef; 452 SV *rv = &PL_sv_undef;
479 453
480 if (req->result >= 0) 454 if (req->result >= 0)
481 { 455 {
482 int i; 456 int i;
483 char *buf = req->ptr2; 457 char *names = (char *)req->ptr2;
458 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 459 AV *av = newAV ();
485 460
486 av_extend (av, req->result - 1); 461 av_extend (av, req->result - 1);
487 462
488 for (i = 0; i < req->result; ++i) 463 for (i = 0; i < req->result; ++i)
489 { 464 {
490 SV *sv = newSVpv (buf, 0); 465 if (req->int1 & EIO_READDIR_DENTS)
466 {
467 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 468
469 if (req->int1 & EIO_READDIR_CUSTOM2)
470 {
471 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
472 AV *avent = newAV ();
473
474 av_extend (avent, 2);
475
476 if (!sv_type [ent->type])
477 {
478 sv_type [ent->type] = newSViv (ent->type);
479 SvREADONLY_on (sv_type [ent->type]);
480 }
481
482 av_store (avent, 0, namesv);
483 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
484 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
485
486 av_store (av, i, newRV_noinc ((SV *)avent));
487 }
488 else
492 av_store (av, i, sv); 489 av_store (av, i, namesv);
490
491 ++ent;
492 }
493 else
494 {
495 SV *name = newSVpv (names, 0);
496 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 497 names += SvCUR (name) + 1;
498 }
494 } 499 }
495 500
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 501 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 502 }
498 503
499 PUSHs (rv); 504 PUSHs (rv);
505
506 if (req->int1 & EIO_READDIR_CUSTOM1)
507 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 508 }
501 break; 509 break;
502 510
503 case REQ_OPEN: 511 case EIO_OPEN:
504 { 512 {
505 /* convert fd to fh */ 513 /* convert fd to fh */
506 SV *fh; 514 SV *fh = &PL_sv_undef;
507 515
508 PUSHs (sv_2mortal (newSViv (req->result))); 516 if (req->result >= 0)
509 PUTBACK; 517 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 518 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 519 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
520 char sym [64];
521 int symlen;
522
523 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
524 gv_init (gv, aio_stash, sym, symlen, 0);
512 525
513 fh = POPs; 526 symlen = snprintf (
514 PUSHMARK (SP); 527 sym,
528 sizeof (sym),
529 "%s&=%d",
530 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
531 (int)req->result
532 );
533
534 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
535 fh = (SV *)gv;
536 }
537
515 XPUSHs (fh); 538 PUSHs (fh);
516 } 539 }
517 break; 540 break;
518 541
542 case EIO_STATVFS:
543 case EIO_FSTATVFS:
544 {
545 SV *rv = &PL_sv_undef;
546
547#ifndef _WIN32
548 if (req->result >= 0)
549 {
550 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
551 HV *hv = newHV ();
552
553 rv = sv_2mortal (newRV_noinc ((SV *)hv));
554
555 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
556 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
557 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
558 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
559 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
560 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
561 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
562 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
563 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
564 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
565 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
566 }
567#endif
568
569 PUSHs (rv);
570 }
571
572 break;
573
519 case REQ_GROUP: 574 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 575 req->int1 = 2; /* mark group as finished */
521 576
522 if (req->sv1) 577 if (req->sv1)
523 { 578 {
524 int i; 579 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 583 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 584 PUSHs (*av_fetch (av, i, 0));
530 } 585 }
531 break; 586 break;
532 587
533 case REQ_NOP: 588 case EIO_NOP:
534 case REQ_BUSY: 589 case EIO_BUSY:
535 break; 590 break;
536 591
537 case REQ_READLINK: 592 case EIO_READLINK:
593 case EIO_REALPATH:
538 if (req->result > 0) 594 if (req->result > 0)
539 { 595 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
540 SvCUR_set (req->sv2, req->result);
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2);
543 }
544 break; 596 break;
545 597
546 case REQ_STAT: 598 case EIO_STAT:
547 case REQ_LSTAT: 599 case EIO_LSTAT:
548 case REQ_FSTAT: 600 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 601 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
550 PL_laststatval = req->result; 602 PL_laststatval = req->result;
603 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
551 PL_statcache = *(Stat_t *)(req->ptr2); 604 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 605 PUSHs (sv_result);
553 break; 606 break;
554 607
555 case REQ_READ: 608 case EIO_READ:
609 {
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 610 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 611 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 612 SvPOK_only (req->sv2);
613 SvSETMAGIC (req->sv2);
614 PUSHs (sv_result);
615 }
559 break; 616 break;
560 617
618 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
619 if (req->result > 0)
620 SvIV_set (sv_result, 0);
621 /* FALLTHROUGH */
622
561 default: 623 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 624 PUSHs (sv_result);
563 break; 625 break;
564 } 626 }
565 627
566 errno = req->errorno; 628 errno = req->errorno;
567 629
568 PUTBACK; 630 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 631 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 632 SPAGAIN;
633
634 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
635 SvREFCNT_dec (sv_result);
636 else
637 sv_result_cache = sv_result;
571 638
572 FREETMPS; 639 FREETMPS;
573 LEAVE; 640 LEAVE;
641
642 PUTBACK;
574 } 643 }
575 644
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 645 return !!SvTRUE (ERRSV);
591} 646}
592 647
593static void req_destroy (aio_req req) 648static void req_destroy (aio_req req)
594{ 649{
595 if (req->self) 650 if (req->self)
… …
600 655
601 SvREFCNT_dec (req->sv1); 656 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 657 SvREFCNT_dec (req->sv2);
603 SvREFCNT_dec (req->callback); 658 SvREFCNT_dec (req->callback);
604 659
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 660 Safefree (req);
609} 661}
610 662
611static void req_cancel_subs (aio_req grp) 663static void req_cancel_subs (aio_req grp)
612{ 664{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 665 if (grp->type != EIO_GROUP)
616 return; 666 return;
617 667
618 SvREFCNT_dec (grp->sv2); 668 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 669 grp->sv2 = 0;
620 670
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 671 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 672}
624 673
625static void req_cancel (aio_req req) 674static void create_respipe (void)
626{ 675{
627 req->flags |= FLAG_CANCELLED; 676 if (s_epipe_renew (&respipe))
628
629 req_cancel_subs (req);
630}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637
638static void
639create_pipe (int fd[2])
640{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe"); 677 croak ("IO::AIO: unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655} 678}
656 679
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait () 680static void poll_wait (void)
753{ 681{
754 fd_set rfd;
755
756 while (nreqs) 682 while (eio_nreqs ())
757 { 683 {
758 int size; 684 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 685
686 X_LOCK (reslock);
760 size = res_queue.size; 687 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 688 X_UNLOCK (reslock);
762 689
763 if (size) 690 if (size)
764 return; 691 return;
765 692
766 maybe_start_thread (); 693 etp_maybe_start_thread ();
767 694
768 FD_ZERO (&rfd); 695 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 696 }
773} 697}
774 698
775static int poll_cb () 699static int poll_cb (void)
776{ 700{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 701 for (;;)
790 { 702 {
791 for (;;) 703 int res = eio_poll ();
792 {
793 maybe_start_thread ();
794 704
795 X_LOCK (reslock); 705 if (res > 0)
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 {
800 --npending;
801
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (respipe_read (respipe [0], buf, 4) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 }
823 else
824 {
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0); 706 croak (0);
830 }
831 707
832 count++; 708 if (!max_outstanding || max_outstanding > eio_nreqs ())
833 } 709 return res;
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 }
848
849 if (nreqs <= max_outstanding)
850 break;
851 710
852 poll_wait (); 711 poll_wait ();
853
854 ++maxreqs;
855 } 712 }
713}
856 714
857 unblock_sig (); 715static void atfork_child (void)
858 return count; 716{
717 create_respipe ();
859} 718}
860 719
861/*****************************************************************************/ 720/*****************************************************************************/
862/* work around various missing functions */
863 721
864#if !HAVE_PREADWRITE 722#if !_POSIX_MAPPED_FILES
865# define pread aio_pread 723# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
866# define pwrite aio_pwrite 724# define munmap(addr,length) (errno = ENOSYS, -1)
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{
877 ssize_t res;
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888}
889
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
891{
892 ssize_t res;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif 725#endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041 726
1042 if (res < 0 727#if !_POSIX_MEMORY_PROTECTION
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 728# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1044#if __solaris 729# define PROT_NONE 0
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 730# define PROT_WRITE 0
731# define MAP_PRIVATE 0
732# define MAP_SHARED 0
733# define MAP_FIXED 0
1046#endif 734#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052 735
1053 res = 0; 736#define MMAP_MAGIC PERL_MAGIC_ext
1054 737
1055 while (count) 738static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1056 { 739{
1057 ssize_t cnt; 740 int old_errno = errno;
1058 741 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 742 errno = old_errno;
1060 743
1061 if (cnt <= 0) 744 mg->mg_obj = 0; /* just in case */
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066 745
1067 cnt = write (ofd, aio_buf, cnt); 746 SvREADONLY_off (sv);
1068 747
1069 if (cnt <= 0) 748 if (SvPVX (sv) != mg->mg_ptr)
1070 { 749 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074 750
1075 offset += cnt; 751 SvCUR_set (sv, 0);
1076 res += cnt; 752 SvPVX (sv) = 0;
1077 count -= cnt; 753 SvOK_off (sv);
1078 }
1079 }
1080 754
1081 return res; 755 return 0;
1082} 756}
1083 757
1084/* read a full directory */ 758static MGVTBL mmap_vtbl = {
1085static void scandir_ (aio_req req, worker *self) 759 0, 0, 0, 0, mmap_free
1086{ 760};
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144 761
1145/*****************************************************************************/ 762/*****************************************************************************/
1146 763
1147X_THREAD_PROC (aio_proc) 764static SV * get_cb (SV *cb_sv)
1148{ 765{
1149 {//D 766 SvGETMAGIC (cb_sv);
1150 aio_req req; 767 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 respipe_close (respipe [0]);
1376 respipe_close (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381} 768}
1382 769
1383#define dREQ \ 770#define dREQ \
771 SV *cb_cv; \
1384 aio_req req; \ 772 aio_req req; \
1385 int req_pri = next_pri; \ 773 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \ 774 next_pri = EIO_PRI_DEFAULT; \
1387 \ 775 \
1388 if (SvOK (callback) && !SvROK (callback)) \ 776 cb_cv = get_cb (callback); \
1389 croak ("callback must be undef or of reference type"); \
1390 \ 777 \
1391 Newz (0, req, 1, aio_cb); \ 778 Newz (0, req, 1, eio_req); \
1392 if (!req) \ 779 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \ 780 croak ("out of memory during eio_req allocation"); \
1394 \ 781 \
1395 req->callback = newSVsv (callback); \ 782 req->callback = SvREFCNT_inc (cb_cv); \
1396 req->pri = req_pri 783 req->pri = req_pri
1397 784
1398#define REQ_SEND \ 785#define REQ_SEND \
786 PUTBACK; \
1399 req_send (req); \ 787 req_submit (req); \
788 SPAGAIN; \
1400 \ 789 \
1401 if (GIMME_V != G_VOID) \ 790 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 791 XPUSHs (req_sv (req, aio_req_stash));
1403 792
1404MODULE = IO::AIO PACKAGE = IO::AIO 793MODULE = IO::AIO PACKAGE = IO::AIO
1405 794
1406PROTOTYPES: ENABLE 795PROTOTYPES: ENABLE
1407 796
1408BOOT: 797BOOT:
1409{ 798{
799 static const struct {
800 const char *name;
801 IV iv;
802 } *civ, const_iv[] = {
803# define const_niv(name, value) { # name, (IV) value },
804# define const_iv(name) { # name, (IV) name },
805# define const_eio(name) { # name, (IV) EIO_ ## name },
806 const_iv (EXDEV)
807 const_iv (ENOSYS)
808 const_iv (O_RDONLY)
809 const_iv (O_WRONLY)
810 const_iv (O_RDWR)
811 const_iv (O_CREAT)
812 const_iv (O_TRUNC)
813 const_iv (O_EXCL)
814 const_iv (O_APPEND)
815
816 const_iv (O_ASYNC)
817 const_iv (O_DIRECT)
818 const_iv (O_NOATIME)
819
820 const_iv (O_CLOEXEC)
821 const_iv (O_NOCTTY)
822 const_iv (O_NOFOLLOW)
823 const_iv (O_NONBLOCK)
824 const_iv (O_EXEC)
825 const_iv (O_SEARCH)
826 const_iv (O_DIRECTORY)
827 const_iv (O_DSYNC)
828 const_iv (O_RSYNC)
829 const_iv (O_SYNC)
830 const_iv (O_TTY_INIT)
831
832 const_iv (S_IFIFO)
833 const_iv (S_IFCHR)
834 const_iv (S_IFBLK)
835 const_iv (S_IFLNK)
836 const_iv (S_IFREG)
837 const_iv (S_IFDIR)
838 const_iv (S_IFWHT)
839 const_iv (S_IFSOCK)
840 const_iv (S_IFMT)
841
842 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
843 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
844 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
845 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
846 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
847 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
848
849 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
850 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
851 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
852 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
853 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
854
855 const_iv (ST_RDONLY)
856 const_iv (ST_NOSUID)
857 const_iv (ST_NODEV)
858 const_iv (ST_NOEXEC)
859 const_iv (ST_SYNCHRONOUS)
860 const_iv (ST_MANDLOCK)
861 const_iv (ST_WRITE)
862 const_iv (ST_APPEND)
863 const_iv (ST_IMMUTABLE)
864 const_iv (ST_NOATIME)
865 const_iv (ST_NODIRATIME)
866 const_iv (ST_RELATIME)
867
868 const_iv (PROT_NONE)
869 const_iv (PROT_EXEC)
870 const_iv (PROT_READ)
871 const_iv (PROT_WRITE)
872
873 /*const_iv (MAP_FIXED)*/
874 const_iv (MAP_PRIVATE)
875 const_iv (MAP_SHARED)
876 const_iv (MAP_ANONYMOUS)
877
878 /* linuxish */
879 const_iv (MAP_HUGETLB)
880 const_iv (MAP_LOCKED)
881 const_iv (MAP_NORESERVE)
882 const_iv (MAP_POPULATE)
883 const_iv (MAP_NONBLOCK)
884
885 const_eio (MCL_FUTURE)
886 const_eio (MCL_CURRENT)
887
888 const_eio (MS_ASYNC)
889 const_eio (MS_INVALIDATE)
890 const_eio (MS_SYNC)
891
892 const_eio (MT_MODIFY)
893
894 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
895 const_eio (SYNC_FILE_RANGE_WRITE)
896 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
897
898 const_eio (FALLOC_FL_KEEP_SIZE)
899
900 const_eio (READDIR_DENTS)
901 const_eio (READDIR_DIRS_FIRST)
902 const_eio (READDIR_STAT_ORDER)
903 const_eio (READDIR_FOUND_UNKNOWN)
904
905 const_eio (DT_UNKNOWN)
906 const_eio (DT_FIFO)
907 const_eio (DT_CHR)
908 const_eio (DT_DIR)
909 const_eio (DT_BLK)
910 const_eio (DT_REG)
911 const_eio (DT_LNK)
912 const_eio (DT_SOCK)
913 const_eio (DT_WHT)
914 };
915
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 916 aio_stash = gv_stashpv ("IO::AIO" , 1);
917 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
918 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1411 919
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 920 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 921 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 922
1425 X_COND_CHECK (reqwait); 923 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 924
1431 create_pipe (respipe); 925 create_respipe ();
1432 926
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 927 if (eio_init (want_poll, done_poll) < 0)
1434} 928 croak ("IO::AIO: unable to initialise eio library");
1435 929
930 /* atfork child called in fifo order, so before eio's handler */
931 X_THREAD_ATFORK (0, 0, atfork_child);
932}
933
1436void 934void
1437max_poll_reqs (int nreqs) 935max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 936 PROTOTYPE: $
1439 CODE: 937 CODE:
1440 max_poll_reqs = nreqs; 938 eio_set_max_poll_reqs (nreqs);
1441 939
1442void 940void
1443max_poll_time (double nseconds) 941max_poll_time (double nseconds)
1444 PROTOTYPE: $ 942 PROTOTYPE: $
1445 CODE: 943 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 944 eio_set_max_poll_time (nseconds);
1447 945
1448void 946void
1449min_parallel (int nthreads) 947min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 948 PROTOTYPE: $
1459 CODE: 949 CODE:
1460 set_max_idle (nthreads); 950 eio_set_min_parallel (nthreads);
1461 951
1462int 952void
1463max_outstanding (int maxreqs) 953max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 954 PROTOTYPE: $
1465 CODE: 955 CODE:
1466 RETVAL = max_outstanding; 956 eio_set_max_parallel (nthreads);
957
958void
959max_idle (unsigned int nthreads)
960 PROTOTYPE: $
961 CODE:
962 eio_set_max_idle (nthreads);
963
964void
965idle_timeout (unsigned int seconds)
966 PROTOTYPE: $
967 CODE:
968 eio_set_idle_timeout (seconds);
969
970void
971max_outstanding (unsigned int maxreqs)
972 PROTOTYPE: $
973 CODE:
1467 max_outstanding = maxreqs; 974 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 975
1471void 976void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 977aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 978 PPCODE:
1475{ 979{
1476 dREQ; 980 dREQ;
1477 981
1478 req->type = REQ_OPEN; 982 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 983 req->sv1 = newSVsv (pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1); 984 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 985 req->int1 = flags;
1482 req->mode = mode; 986 req->int2 = mode;
1483 987
1484 REQ_SEND; 988 REQ_SEND;
1485} 989}
1486 990
1487void 991void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 992aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 993 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 994 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 995 aio_fdatasync = EIO_FDATASYNC
1494 PPCODE: 996 PPCODE:
1495{ 997{
998 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 999 dREQ;
1497 1000
1498 req->type = ix; 1001 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1002 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1003 req->int1 = fd;
1004
1005 REQ_SEND (req);
1006}
1007
1008void
1009aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1010 PPCODE:
1011{
1012 int fd = s_fileno_croak (fh, 0);
1013 dREQ;
1014
1015 req->type = EIO_SYNC_FILE_RANGE;
1016 req->sv1 = newSVsv (fh);
1017 req->int1 = fd;
1018 req->offs = offset;
1019 req->size = nbytes;
1020 req->int2 = flags;
1021
1022 REQ_SEND (req);
1023}
1024
1025void
1026aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1027 PPCODE:
1028{
1029 int fd = s_fileno_croak (fh, 0);
1030 dREQ;
1031
1032 req->type = EIO_FALLOCATE;
1033 req->sv1 = newSVsv (fh);
1034 req->int1 = fd;
1035 req->int2 = mode;
1036 req->offs = offset;
1037 req->size = len;
1038
1039 REQ_SEND (req);
1040}
1041
1042void
1043aio_close (SV *fh, SV *callback=&PL_sv_undef)
1044 PPCODE:
1045{
1046 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1047 int fd = s_fileno_croak (fh, 0);
1048 dREQ;
1049
1050 if (expect_false (close_fd < 0))
1051 {
1052 int pipefd [2];
1053
1054 if (
1055#ifdef _WIN32
1056 _pipe (pipefd, 1, _O_BINARY) < 0
1057#else
1058 pipe (pipefd) < 0
1059 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1060#endif
1061 || close (pipefd [1]) < 0
1062 )
1063 abort (); /*D*/
1064
1065 close_fd = pipefd [0];
1066 }
1067
1068 req->type = EIO_DUP2;
1069 req->int1 = close_fd;
1070 req->sv2 = newSVsv (fh);
1071 req->int2 = fd;
1501 1072
1502 REQ_SEND (req); 1073 REQ_SEND (req);
1503} 1074}
1504 1075
1505void 1076void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1077aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1078 ALIAS:
1508 aio_read = REQ_READ 1079 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1080 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1081 PPCODE:
1512{ 1082{
1513 STRLEN svlen; 1083 STRLEN svlen;
1084 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1085 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1086 UV len = SvUV (length);
1516 1087
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1088 if (dataoffset < 0)
1521 dataoffset += svlen; 1089 dataoffset += svlen;
1522 1090
1523 if (dataoffset < 0 || dataoffset > svlen) 1091 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1092 croak ("dataoffset outside of data scalar");
1525 1093
1526 if (ix == REQ_WRITE) 1094 if (ix == EIO_WRITE)
1527 { 1095 {
1528 /* write: check length and adjust. */ 1096 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1097 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1098 len = svlen - dataoffset;
1531 } 1099 }
1532 else 1100 else
1533 { 1101 {
1534 /* read: grow scalar as necessary */ 1102 /* read: check type and grow scalar as necessary */
1103 SvUPGRADE (data, SVt_PV);
1535 svptr = SvGROW (data, len + dataoffset + 1); 1104 svptr = SvGROW (data, len + dataoffset + 1);
1536 } 1105 }
1537 1106
1538 if (len < 0)
1539 croak ("length must not be negative");
1540
1541 { 1107 {
1542 dREQ; 1108 dREQ;
1543 1109
1544 req->type = ix; 1110 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1111 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1112 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1113 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1114 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1115 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1116 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1117 req->stroffset = dataoffset;
1553 1118
1554 if (!SvREADONLY (data)) 1119 if (!SvREADONLY (data))
1555 { 1120 {
1556 SvREADONLY_on (data); 1121 SvREADONLY_on (data);
… …
1561 } 1126 }
1562} 1127}
1563 1128
1564void 1129void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1130aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1131 ALIAS:
1132 aio_readlink = EIO_READLINK
1133 aio_realpath = EIO_REALPATH
1567 PPCODE: 1134 PPCODE:
1568{ 1135{
1569 SV *data;
1570 dREQ; 1136 dREQ;
1571 1137
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1138 req->type = ix;
1576 req->sv1 = newSVsv (path); 1139 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1); 1140 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1141
1581 REQ_SEND; 1142 REQ_SEND;
1582} 1143}
1583 1144
1584void 1145void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1146aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1147 PPCODE:
1588{ 1148{
1149 int ifd = s_fileno_croak (in_fh , 0);
1150 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1151 dREQ;
1590 1152
1591 req->type = REQ_SENDFILE; 1153 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1154 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1155 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1156 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1157 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1158 req->offs = in_offset;
1597 req->size = length; 1159 req->size = length;
1598 1160
1599 REQ_SEND; 1161 REQ_SEND;
1600} 1162}
1601 1163
1602void 1164void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1165aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1166 PPCODE:
1606{ 1167{
1168 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1169 dREQ;
1608 1170
1609 req->type = REQ_READAHEAD; 1171 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1172 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1173 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1174 req->offs = offset;
1613 req->size = length; 1175 req->size = length;
1614 1176
1615 REQ_SEND; 1177 REQ_SEND;
1616} 1178}
1617 1179
1618void 1180void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1181aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1182 ALIAS:
1621 aio_stat = REQ_STAT 1183 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1184 aio_lstat = EIO_LSTAT
1185 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1186 PPCODE:
1624{ 1187{
1625 dREQ; 1188 dREQ;
1626 1189
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path); 1190 req->sv1 = newSVsv (fh_or_path);
1636 1191
1637 if (SvPOK (fh_or_path)) 1192 if (SvPOK (req->sv1))
1638 { 1193 {
1639 req->type = ix; 1194 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1); 1195 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1196 }
1642 else 1197 else
1643 { 1198 {
1644 req->type = REQ_FSTAT; 1199 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1200 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 } 1201 }
1647 1202
1648 REQ_SEND; 1203 REQ_SEND;
1649} 1204}
1205
1206UV
1207major (UV dev)
1208 ALIAS:
1209 minor = 1
1210 CODE:
1211 RETVAL = ix ? major (dev) : minor (dev);
1212 OUTPUT:
1213 RETVAL
1214
1215UV
1216makedev (UV maj, UV min)
1217 CODE:
1218 RETVAL = makedev (maj, min);
1219 OUTPUT:
1220 RETVAL
1650 1221
1651void 1222void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1223aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1224 PPCODE:
1654{ 1225{
… …
1656 1227
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1228 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1229 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1230 req->sv1 = newSVsv (fh_or_path);
1660 1231
1661 if (SvPOK (fh_or_path)) 1232 if (SvPOK (req->sv1))
1662 { 1233 {
1663 req->type = REQ_UTIME; 1234 req->type = EIO_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1); 1235 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 } 1236 }
1666 else 1237 else
1667 { 1238 {
1668 req->type = REQ_FUTIME; 1239 req->type = EIO_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1240 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 } 1241 }
1671 1242
1672 REQ_SEND; 1243 REQ_SEND;
1673} 1244}
… …
1679 dREQ; 1250 dREQ;
1680 1251
1681 req->sv1 = newSVsv (fh_or_path); 1252 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1253 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1254
1684 if (SvPOK (fh_or_path)) 1255 if (SvPOK (req->sv1))
1685 { 1256 {
1686 req->type = REQ_TRUNCATE; 1257 req->type = EIO_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1); 1258 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 } 1259 }
1689 else 1260 else
1690 { 1261 {
1691 req->type = REQ_FTRUNCATE; 1262 req->type = EIO_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1263 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 } 1264 }
1694 1265
1695 REQ_SEND; 1266 REQ_SEND;
1696} 1267}
1697 1268
1698void 1269void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1270aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1271 ALIAS:
1272 aio_chmod = EIO_CHMOD
1273 aio_mkdir = EIO_MKDIR
1700 PPCODE: 1274 PPCODE:
1701{ 1275{
1702 dREQ; 1276 dREQ;
1703 1277
1704 req->mode = mode; 1278 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1279 req->sv1 = newSVsv (fh_or_path);
1706 1280
1707 if (SvPOK (fh_or_path)) 1281 if (SvPOK (req->sv1))
1708 { 1282 {
1709 req->type = REQ_CHMOD; 1283 req->type = ix;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1); 1284 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 } 1285 }
1712 else 1286 else
1713 { 1287 {
1714 req->type = REQ_FCHMOD; 1288 req->type = EIO_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1289 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 } 1290 }
1717 1291
1718 REQ_SEND; 1292 REQ_SEND;
1719} 1293}
… …
1726 1300
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1301 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1302 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1303 req->sv1 = newSVsv (fh_or_path);
1730 1304
1731 if (SvPOK (fh_or_path)) 1305 if (SvPOK (req->sv1))
1732 { 1306 {
1733 req->type = REQ_CHOWN; 1307 req->type = EIO_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1308 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 } 1309 }
1736 else 1310 else
1737 { 1311 {
1738 req->type = REQ_FCHOWN; 1312 req->type = EIO_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1313 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 } 1314 }
1741 1315
1742 REQ_SEND; 1316 REQ_SEND;
1743} 1317}
1744 1318
1745void 1319void
1320aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1321 PPCODE:
1322{
1323 dREQ;
1324
1325 req->type = EIO_READDIR;
1326 req->sv1 = newSVsv (pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1329
1330 if (flags & EIO_READDIR_DENTS)
1331 req->int1 |= EIO_READDIR_CUSTOM2;
1332
1333 REQ_SEND;
1334}
1335
1336void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1337aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1338 ALIAS:
1748 aio_unlink = REQ_UNLINK 1339 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1340 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1341 aio_readdir = EIO_READDIR
1751 PPCODE: 1342 PPCODE:
1752{ 1343{
1753 dREQ; 1344 dREQ;
1754 1345
1755 req->type = ix; 1346 req->type = ix;
… …
1758 1349
1759 REQ_SEND; 1350 REQ_SEND;
1760} 1351}
1761 1352
1762void 1353void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1354aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS: 1355 ALIAS:
1779 aio_link = REQ_LINK 1356 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1357 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1358 aio_rename = EIO_RENAME
1782 PPCODE: 1359 PPCODE:
1783{ 1360{
1784 dREQ; 1361 dREQ;
1785 1362
1786 req->type = ix; 1363 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1364 req->sv1 = newSVsv (oldpath);
1365 req->ptr1 = SvPVbyte_nolen (req->sv1);
1366 req->sv2 = newSVsv (newpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1367 req->ptr2 = SvPVbyte_nolen (req->sv2);
1789 req->sv1 = newSVsv (newpath);
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1368
1792 REQ_SEND; 1369 REQ_SEND;
1793} 1370}
1794 1371
1795void 1372void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1373aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE: 1374 PPCODE:
1798{ 1375{
1799 dREQ; 1376 dREQ;
1800 1377
1801 req->type = REQ_MKNOD; 1378 req->type = EIO_MKNOD;
1802 req->sv1 = newSVsv (pathname); 1379 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1380 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 1381 req->int2 = (mode_t)mode;
1805 req->offs = dev; 1382 req->offs = dev;
1806 1383
1807 REQ_SEND; 1384 REQ_SEND;
1808} 1385}
1809 1386
1810void 1387void
1388aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1389 ALIAS:
1390 aio_mtouch = EIO_MTOUCH
1391 aio_msync = EIO_MSYNC
1392 PPCODE:
1393{
1394 STRLEN svlen;
1395 char *svptr = SvPVbyte (data, svlen);
1396 UV len = SvUV (length);
1397
1398 if (offset < 0)
1399 offset += svlen;
1400
1401 if (offset < 0 || offset > svlen)
1402 croak ("offset outside of scalar");
1403
1404 if (!SvOK (length) || len + offset > svlen)
1405 len = svlen - offset;
1406
1407 {
1408 dREQ;
1409
1410 req->type = ix;
1411 req->sv2 = SvREFCNT_inc (data);
1412 req->ptr2 = (char *)svptr + offset;
1413 req->size = len;
1414 req->int1 = flags;
1415
1416 REQ_SEND;
1417 }
1418}
1419
1420void
1421aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1422 PPCODE:
1423{
1424 STRLEN svlen;
1425 char *svptr = SvPVbyte (data, svlen);
1426 UV len = SvUV (length);
1427
1428 if (offset < 0)
1429 offset += svlen;
1430
1431 if (offset < 0 || offset > svlen)
1432 croak ("offset outside of scalar");
1433
1434 if (!SvOK (length) || len + offset > svlen)
1435 len = svlen - offset;
1436
1437 {
1438 dREQ;
1439
1440 req->type = EIO_MLOCK;
1441 req->sv2 = SvREFCNT_inc (data);
1442 req->ptr2 = (char *)svptr + offset;
1443 req->size = len;
1444
1445 REQ_SEND;
1446 }
1447}
1448
1449void
1450aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1451 PPCODE:
1452{
1453 dREQ;
1454
1455 req->type = EIO_MLOCKALL;
1456 req->int1 = flags;
1457
1458 REQ_SEND;
1459}
1460
1461void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1462aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 1463 PPCODE:
1813{ 1464{
1814 dREQ; 1465 dREQ;
1815 1466
1816 req->type = REQ_BUSY; 1467 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1468 req->nv1 = delay < 0. ? 0. : delay;
1818 1469
1819 REQ_SEND; 1470 REQ_SEND;
1820} 1471}
1821 1472
1822void 1473void
1823aio_group (SV *callback=&PL_sv_undef) 1474aio_group (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1475 PPCODE:
1826{ 1476{
1827 dREQ; 1477 dREQ;
1828 1478
1829 req->type = REQ_GROUP; 1479 req->type = EIO_GROUP;
1830 1480
1831 req_send (req); 1481 req_submit (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1482 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1483}
1834 1484
1835void 1485void
1836aio_nop (SV *callback=&PL_sv_undef) 1486aio_nop (SV *callback=&PL_sv_undef)
1487 ALIAS:
1488 aio_nop = EIO_NOP
1489 aio_sync = EIO_SYNC
1837 PPCODE: 1490 PPCODE:
1838{ 1491{
1839 dREQ; 1492 dREQ;
1840 1493
1841 req->type = REQ_NOP; 1494 req->type = ix;
1842 1495
1843 REQ_SEND; 1496 REQ_SEND;
1844} 1497}
1845 1498
1846int 1499int
1847aioreq_pri (int pri = 0) 1500aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1501 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1502 RETVAL = next_pri;
1851 if (items > 0) 1503 if (items > 0)
1852 { 1504 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1505 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1506 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1507 next_pri = pri;
1856 } 1508 }
1857 OUTPUT: 1509 OUTPUT:
1858 RETVAL 1510 RETVAL
1859 1511
1860void 1512void
1861aioreq_nice (int nice = 0) 1513aioreq_nice (int nice = 0)
1862 CODE: 1514 CODE:
1863 nice = next_pri - nice; 1515 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1516 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1517 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1518 next_pri = nice;
1867 1519
1868void 1520void
1869flush () 1521flush ()
1870 PROTOTYPE:
1871 CODE: 1522 CODE:
1872 while (nreqs) 1523 while (eio_nreqs ())
1873 { 1524 {
1874 poll_wait (); 1525 poll_wait ();
1875 poll_cb (); 1526 poll_cb ();
1876 } 1527 }
1877 1528
1878int 1529int
1879poll() 1530poll ()
1880 PROTOTYPE:
1881 CODE: 1531 CODE:
1882 poll_wait (); 1532 poll_wait ();
1883 RETVAL = poll_cb (); 1533 RETVAL = poll_cb ();
1884 OUTPUT: 1534 OUTPUT:
1885 RETVAL 1535 RETVAL
1886 1536
1887int 1537int
1888poll_fileno() 1538poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1539 CODE:
1891 RETVAL = respipe [0]; 1540 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1541 OUTPUT:
1893 RETVAL 1542 RETVAL
1894 1543
1895int 1544int
1896poll_cb(...) 1545poll_cb (...)
1897 PROTOTYPE: 1546 PROTOTYPE:
1898 CODE: 1547 CODE:
1899 RETVAL = poll_cb (); 1548 RETVAL = poll_cb ();
1900 OUTPUT: 1549 OUTPUT:
1901 RETVAL 1550 RETVAL
1902 1551
1903void 1552void
1904poll_wait() 1553poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1554 CODE:
1907 poll_wait (); 1555 poll_wait ();
1908 1556
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1557int
1947nreqs() 1558nreqs ()
1948 PROTOTYPE:
1949 CODE: 1559 CODE:
1950 RETVAL = nreqs; 1560 RETVAL = eio_nreqs ();
1951 OUTPUT: 1561 OUTPUT:
1952 RETVAL 1562 RETVAL
1953 1563
1954int 1564int
1955nready() 1565nready ()
1956 PROTOTYPE:
1957 CODE: 1566 CODE:
1958 RETVAL = get_nready (); 1567 RETVAL = eio_nready ();
1959 OUTPUT: 1568 OUTPUT:
1960 RETVAL 1569 RETVAL
1961 1570
1962int 1571int
1963npending() 1572npending ()
1964 PROTOTYPE:
1965 CODE: 1573 CODE:
1966 RETVAL = get_npending (); 1574 RETVAL = eio_npending ();
1967 OUTPUT: 1575 OUTPUT:
1968 RETVAL 1576 RETVAL
1969 1577
1970int 1578int
1971nthreads() 1579nthreads ()
1972 PROTOTYPE:
1973 CODE: 1580 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1581 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1582 OUTPUT:
1978 RETVAL 1583 RETVAL
1979 1584
1585int
1586fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1587 CODE:
1588 RETVAL = posix_fadvise (fh, offset, length, advice);
1589 OUTPUT:
1590 RETVAL
1591
1592ssize_t
1593sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1594 CODE:
1595 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1596 OUTPUT:
1597 RETVAL
1598
1599void
1600mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1601 PPCODE:
1602 sv_unmagic (scalar, MMAP_MAGIC);
1603{
1604 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1605 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1606 if (addr == (void *)-1)
1607 XSRETURN_NO;
1608
1609 sv_force_normal (scalar);
1610
1611 /* we store the length in mg_obj, as namlen is I32 :/ */
1612 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1613 ->mg_obj = (SV *)length;
1614
1615 SvUPGRADE (scalar, SVt_PV); /* nop... */
1616
1617 if (!(prot & PROT_WRITE))
1618 SvREADONLY_on (scalar);
1619
1620 if (SvLEN (scalar))
1621 Safefree (SvPVX (scalar));
1622
1623 SvPVX (scalar) = (char *)addr;
1624 SvCUR_set (scalar, length);
1625 SvLEN_set (scalar, 0);
1626 SvPOK_only (scalar);
1627
1628 XSRETURN_YES;
1629}
1630
1631void
1632munmap (SV *scalar)
1633 CODE:
1634 sv_unmagic (scalar, MMAP_MAGIC);
1635
1636int
1637madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1638 ALIAS:
1639 mprotect = 1
1640 CODE:
1641{
1642 STRLEN svlen;
1643 void *addr = SvPVbyte (scalar, svlen);
1644 size_t len = SvUV (length);
1645
1646 if (offset < 0)
1647 offset += svlen;
1648
1649 if (offset < 0 || offset > svlen)
1650 croak ("offset outside of scalar");
1651
1652 if (!SvOK (length) || len + offset > svlen)
1653 len = svlen - offset;
1654
1655 addr = (void *)(((intptr_t)addr) + offset);
1656 eio_page_align (&addr, &len);
1657
1658 switch (ix)
1659 {
1660 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1661 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1662 }
1663}
1664 OUTPUT:
1665 RETVAL
1666
1667int
1668munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1669 CODE:
1670{
1671 STRLEN svlen;
1672 void *addr = SvPVbyte (scalar, svlen);
1673 size_t len = SvUV (length);
1674
1675 if (offset < 0)
1676 offset += svlen;
1677
1678 if (offset < 0 || offset > svlen)
1679 croak ("offset outside of scalar");
1680
1681 if (!SvOK (length) || len + offset > svlen)
1682 len = svlen - offset;
1683
1684 addr = (void *)(((intptr_t)addr) + offset);
1685 eio_page_align (&addr, &len);
1686#if _POSIX_MEMLOCK_RANGE
1687 RETVAL = munlock (addr, len);
1688#else
1689 RETVAL = ((errno = ENOSYS), -1);
1690#endif
1691}
1692 OUTPUT:
1693 RETVAL
1694
1695int
1696munlockall ()
1697 CODE:
1698#if _POSIX_MEMLOCK
1699 munlockall ();
1700#else
1701 RETVAL = -1;
1702 errno = ENOSYS;
1703#endif
1704 OUTPUT:
1705 RETVAL
1706
1707void _on_next_submit (SV *cb)
1708 CODE:
1709 SvREFCNT_dec (on_next_submit);
1710 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1711
1980PROTOTYPES: DISABLE 1712PROTOTYPES: DISABLE
1981 1713
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1714MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1715
1984void 1716void
1985cancel (aio_req_ornot req) 1717cancel (aio_req_ornot req)
1986 CODE: 1718 CODE:
1987 req_cancel (req); 1719 eio_cancel (req);
1988 1720
1989void 1721void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1722cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1723 PPCODE:
1724{
1725 if (GIMME_V != G_VOID)
1726 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1727
1728 if (items > 1)
1729 {
1730 SV *cb_cv =get_cb (callback);
1731
1992 SvREFCNT_dec (req->callback); 1732 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1733 req->callback = SvREFCNT_inc (cb_cv);
1734 }
1735}
1994 1736
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1737MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1738
1997void 1739void
1998add (aio_req grp, ...) 1740add (aio_req grp, ...)
1999 PPCODE: 1741 PPCODE:
2000{ 1742{
2001 int i; 1743 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1744
2007 if (grp->int1 == 2) 1745 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1746 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1747
2010 for (i = 1; i < items; ++i ) 1748 for (i = 1; i < items; ++i )
2011 { 1749 {
1750 aio_req req;
1751
2012 if (GIMME_V != G_VOID) 1752 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1753 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1754
2015 req = SvAIO_REQ (ST (i)); 1755 req = SvAIO_REQ (ST (i));
2016 1756
2017 if (req) 1757 if (req)
2018 { 1758 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1759 }
2031} 1760}
2032 1761
2033void 1762void
2034cancel_subs (aio_req_ornot req) 1763cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1772 AV *av;
2044 1773
2045 grp->errorno = errno; 1774 grp->errorno = errno;
2046 1775
2047 av = newAV (); 1776 av = newAV ();
1777 av_extend (av, items - 1);
2048 1778
2049 for (i = 1; i < items; ++i ) 1779 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1780 av_push (av, newSVsv (ST (i)));
2051 1781
2052 SvREFCNT_dec (grp->sv1); 1782 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1789 grp->errorno = errorno;
2060 1790
2061void 1791void
2062limit (aio_req grp, int limit) 1792limit (aio_req grp, int limit)
2063 CODE: 1793 CODE:
2064 grp->int2 = limit; 1794 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1795
2067void 1796void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1797feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1798 CODE:
2070{ 1799{
2071 SvREFCNT_dec (grp->sv2); 1800 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1801 grp->sv2 = newSVsv (callback);
1802 grp->feed = aio_grp_feed;
2073 1803
2074 if (grp->int2 <= 0) 1804 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1805 grp->int2 = 2;
2076 1806
2077 aio_grp_feed (grp); 1807 eio_grp_limit (grp, grp->int2);
2078} 1808}
2079 1809

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