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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.195 by root, Mon Sep 26 20:19:08 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 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 36
22#undef malloc 37 #undef malloc
23#undef free 38 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 39 #undef open
27# undef read 40 #undef read
28# undef write 41 #undef write
42 #undef send
43 #undef recv
29# undef stat 44 #undef stat
45 #undef lstat
30# undef fstat 46 #undef fstat
31# define lstat stat
32# undef truncate 47 #undef truncate
33# undef ftruncate 48 #undef ftruncate
34# undef open 49 #undef open
50 #undef link
35# undef close 51 #undef close
36# undef unlink 52 #undef unlink
53 #undef mkdir
37# undef rmdir 54 #undef rmdir
38# undef rename 55 #undef rename
39# undef lseek 56 #undef lseek
40 57 #undef opendir
41# define chown(a,b,c) (errno = ENOSYS, -1) 58 #undef readdir
42# define fchown(a,b,c) (errno = ENOSYS, -1) 59 #undef closedir
43# define fchmod(a,b) (errno = ENOSYS, -1) 60 #undef chmod
44# define symlink(a,b) (errno = ENOSYS, -1) 61 #undef fchmod
45# define readlink(a,b,c) (errno = ENOSYS, -1) 62 #undef dup
46# define mknod(a,b,c) (errno = ENOSYS, -1) 63 #undef dup2
47# define truncate(a,b) (errno = ENOSYS, -1) 64 #undef abort
48# define ftruncate(fd,o) chsize ((fd), (o)) 65 #undef pipe
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 66
55#else 67#else
56 68
57# include "autoconf/config.h"
58# include <sys/time.h> 69 #include <sys/time.h>
59# include <sys/select.h> 70 #include <sys/select.h>
60# include <unistd.h> 71 #include <unistd.h>
61# include <utime.h> 72 #include <utime.h>
62# include <signal.h> 73 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 74
65#endif
66
67#if HAVE_SENDFILE
68# if __linux
69# include <sys/sendfile.h>
70# elif __freebsd
71# include <sys/socket.h>
72# include <sys/uio.h>
73# elif __hpux
74# include <sys/socket.h>
75# elif __solaris /* not yet */
76# include <sys/sendfile.h>
77# else
78# error sendfile support requested but not available
79# endif 75#endif
80#endif
81 76
82/* number of seconds after which idle threads exit */ 77#define EIO_STRUCT_STAT Stat_t
83#define IDLE_TIMEOUT 10
84
85/* used for struct dirent, AIX doesn't provide it */
86#ifndef NAME_MAX
87# define NAME_MAX 4096
88#endif
89
90/* buffer size for various temporary buffers */
91#define AIO_BUFSIZE 65536
92 78
93/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8 80#if IVSIZE >= 8
81# define VAL64 IV
95# define SvVAL64 SvIV 82# define SvVAL64 SvIV
83# define newSVval64 newSViv
96#else 84#else
85# define VAL64 NV
97# define SvVAL64 SvNV 86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
98#endif 88#endif
99 89
100#define dBUF \ 90/*****************************************************************************/
101 char *aio_buf; \ 91
102 X_LOCK (wrklock); \ 92#if __GNUC__ >= 3
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 93# define expect(expr,value) __builtin_expect ((expr),(value))
104 X_UNLOCK (wrklock); \ 94#else
105 if (!aio_buf) \ 95# define expect(expr,value) (expr)
106 return -1; 96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
107 102
108typedef SV SV8; /* byte-sv, used for argument-checking */ 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
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
109 328
110enum { 329enum {
111 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 331};
127 332
128#define AIO_REQ_KLASS "IO::AIO::REQ"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130
131typedef struct aio_cb
132{
133 struct aio_cb *volatile next;
134
135 SV *callback;
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142
143 STRLEN stroffset;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148
149 unsigned char flags;
150 unsigned char pri;
151
152 SV *self; /* the perl counterpart of this request, if any */
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
154} aio_cb;
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
163typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd *aio_wd;
164 336
165enum { 337static SV *on_next_submit;
166 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
167 PRI_MAX = 4, 339static int max_outstanding;
168 340
169 DEFAULT_PRI = 0, 341static s_epipe respipe;
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173 342
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return;
196
197 if (!main_sig)
198 return;
199
200 sigemptyset (&ss);
201 sigaddset (&ss, main_sig);
202 pthread_sigmask (SIG_BLOCK, &ss, 0);
203}
204
205void unblock_sig ()
206{
207 sigset_t ss;
208
209 if (--block_sig_level)
210 return;
211
212 if (!main_sig)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 {
245 closedir (wrk->dirp);
246 wrk->dirp = 0;
247 }
248
249 if (wrk->dbuf)
250 {
251 free (wrk->dbuf);
252 wrk->dbuf = 0;
253 }
254}
255
256static void worker_free (worker *wrk)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0;
351
352 --q->size;
353
354 for (pri = NUM_PRI; pri--; )
355 {
356 aio_req req = q->qs[pri];
357
358 if (req)
359 {
360 if (!(q->qs[pri] = req->next))
361 q->qe[pri] = 0;
362
363 return req;
364 }
365 }
366
367 abort ();
368}
369
370static int poll_cb ();
371static int req_invoke (aio_req req);
372static void req_destroy (aio_req req); 343static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
374 345
346static void want_poll (void)
347{
348 /* write a dummy byte to the pipe so fh becomes ready */
349 s_epipe_signal (&respipe);
350}
351
352static void done_poll (void)
353{
354 /* read any signals sent by the worker threads */
355 s_epipe_drain (&respipe);
356}
357
375/* must be called at most once */ 358/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 359static SV *req_sv (aio_req req, HV *stash)
377{ 360{
378 if (!req->self) 361 if (!req->self)
379 { 362 {
380 req->self = (SV *)newHV (); 363 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 365 }
383 366
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 367 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 368}
386 369
387static aio_req SvAIO_REQ (SV *sv) 370static aio_req SvAIO_REQ (SV *sv)
388{ 371{
389 MAGIC *mg; 372 MAGIC *mg;
390 373
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 374 if (!SvROK (sv)
375 || (SvSTASH (SvRV (sv)) != aio_grp_stash
376 && SvSTASH (SvRV (sv)) != aio_req_stash
377 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 378 croak ("object of class IO::AIO::REQ expected");
393 379
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 380 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 381
396 return mg ? (aio_req)mg->mg_ptr : 0; 382 return mg ? (aio_req)mg->mg_ptr : 0;
397} 383}
398 384
385static aio_wd SvAIO_WD (SV *sv)
386{
387 if (!SvROK (sv)
388 || SvSTASH (SvRV (sv)) != aio_wd_stash
389 || SvTYPE (SvRV (sv)) != SVt_PVMG)
390 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
391
392 return (aio_wd)(long)SvIVX (SvRV (sv));
393}
394
399static void aio_grp_feed (aio_req grp) 395static void aio_grp_feed (aio_req grp)
400{ 396{
401 block_sig (); 397 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 398 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 399 dSP;
410 400
411 ENTER; 401 ENTER;
412 SAVETMPS; 402 SAVETMPS;
413 PUSHMARK (SP); 403 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 404 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 405 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 406 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 407 SPAGAIN;
418 FREETMPS; 408 FREETMPS;
419 LEAVE; 409 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 410 }
430
431 unblock_sig ();
432} 411}
433 412
434static void aio_grp_dec (aio_req grp) 413static void req_submit (eio_req *req)
435{ 414{
436 --grp->size; 415 eio_submit (req);
437 416
438 /* call feeder, if applicable */ 417 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 418 {
444 block_sig (); 419 dSP;
420 SV *cb = sv_2mortal (on_next_submit);
445 421
446 if (!req_invoke (grp)) 422 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 423
453 req_destroy (grp); 424 PUSHMARK (SP);
454 unblock_sig (); 425 PUTBACK;
426 call_sv (cb, G_DISCARD | G_EVAL);
455 } 427 }
456} 428}
457 429
458static int req_invoke (aio_req req) 430static int req_invoke (eio_req *req)
459{ 431{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 432 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 433 SvREADONLY_off (req->sv2);
464 434
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 435 if (!EIO_CANCELLED (req) && req->callback)
466 { 436 {
437 dSP;
438 static SV *sv_result_cache; /* caches the result integer SV */
439 SV *sv_result;
440
467 ENTER; 441 ENTER;
468 SAVETMPS; 442 SAVETMPS;
469 PUSHMARK (SP); 443 PUSHMARK (SP);
470 EXTEND (SP, 1); 444 EXTEND (SP, 1);
471 445
446 /* do not recreate the result IV from scratch each time */
447 if (expect_true (sv_result_cache))
448 {
449 sv_result = sv_result_cache; sv_result_cache = 0;
450 SvIV_set (sv_result, req->result);
451 SvIOK_only (sv_result);
452 }
453 else
454 {
455 sv_result = newSViv (req->result);
456 SvREADONLY_on (sv_result);
457 }
458
472 switch (req->type) 459 switch (req->type)
473 { 460 {
461 case EIO_WD_OPEN:
462 PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));
463 break;
464
474 case REQ_READDIR: 465 case EIO_READDIR:
475 { 466 {
476 SV *rv = &PL_sv_undef; 467 SV *rv = &PL_sv_undef;
477 468
478 if (req->result >= 0) 469 if (req->result >= 0)
479 { 470 {
480 int i; 471 int i;
481 char *buf = req->ptr2; 472 char *names = (char *)req->ptr2;
473 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 474 AV *av = newAV ();
483 475
484 av_extend (av, req->result - 1); 476 av_extend (av, req->result - 1);
485 477
486 for (i = 0; i < req->result; ++i) 478 for (i = 0; i < req->result; ++i)
487 { 479 {
488 SV *sv = newSVpv (buf, 0); 480 if (req->int1 & EIO_READDIR_DENTS)
481 {
482 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 483
484 if (req->int1 & EIO_READDIR_CUSTOM2)
485 {
486 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
487 AV *avent = newAV ();
488
489 av_extend (avent, 2);
490
491 if (!sv_type [ent->type])
492 {
493 sv_type [ent->type] = newSViv (ent->type);
494 SvREADONLY_on (sv_type [ent->type]);
495 }
496
497 av_store (avent, 0, namesv);
498 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
499 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
500
501 av_store (av, i, newRV_noinc ((SV *)avent));
502 }
503 else
490 av_store (av, i, sv); 504 av_store (av, i, namesv);
505
506 ++ent;
507 }
508 else
509 {
510 SV *name = newSVpv (names, 0);
511 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 512 names += SvCUR (name) + 1;
513 }
492 } 514 }
493 515
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 516 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 517 }
496 518
497 PUSHs (rv); 519 PUSHs (rv);
520
521 if (req->int1 & EIO_READDIR_CUSTOM1)
522 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 523 }
499 break; 524 break;
500 525
501 case REQ_OPEN: 526 case EIO_OPEN:
502 { 527 {
503 /* convert fd to fh */ 528 /* convert fd to fh */
504 SV *fh; 529 SV *fh = &PL_sv_undef;
505 530
506 PUSHs (sv_2mortal (newSViv (req->result))); 531 if (req->result >= 0)
507 PUTBACK; 532 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 533 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 534 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
535 char sym [64];
536 int symlen;
537
538 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
539 gv_init (gv, aio_stash, sym, symlen, 0);
510 540
511 fh = POPs; 541 symlen = snprintf (
512 PUSHMARK (SP); 542 sym,
543 sizeof (sym),
544 "%s&=%d",
545 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
546 (int)req->result
547 );
548
549 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
550 fh = (SV *)gv;
551 }
552
513 XPUSHs (fh); 553 PUSHs (fh);
514 } 554 }
515 break; 555 break;
516 556
557 case EIO_STATVFS:
558 case EIO_FSTATVFS:
559 {
560 SV *rv = &PL_sv_undef;
561
562#ifndef _WIN32
563 if (req->result >= 0)
564 {
565 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566 HV *hv = newHV ();
567
568 rv = sv_2mortal (newRV_noinc ((SV *)hv));
569
570 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
571 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
572 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
573 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
574 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
575 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
576 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
577 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
578 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
579 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
580 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
581 }
582#endif
583
584 PUSHs (rv);
585 }
586
587 break;
588
517 case REQ_GROUP: 589 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 590 req->int1 = 2; /* mark group as finished */
519 591
520 if (req->sv1) 592 if (req->sv1)
521 { 593 {
522 int i; 594 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 598 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 599 PUSHs (*av_fetch (av, i, 0));
528 } 600 }
529 break; 601 break;
530 602
531 case REQ_NOP: 603 case EIO_NOP:
532 case REQ_BUSY: 604 case EIO_BUSY:
533 break; 605 break;
534 606
535 case REQ_READLINK: 607 case EIO_READLINK:
608 case EIO_REALPATH:
536 if (req->result > 0) 609 if (req->result > 0)
537 { 610 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
538 SvCUR_set (req->sv2, req->result);
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2);
541 }
542 break; 611 break;
543 612
544 case REQ_STAT: 613 case EIO_STAT:
545 case REQ_LSTAT: 614 case EIO_LSTAT:
546 case REQ_FSTAT: 615 case EIO_FSTAT:
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 616 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result; 617 PL_laststatval = req->result;
618 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
549 PL_statcache = *(Stat_t *)(req->ptr2); 619 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result))); 620 PUSHs (sv_result);
551 break; 621 break;
552 622
553 case REQ_READ: 623 case EIO_READ:
624 {
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 625 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0; 626 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result))); 627 SvPOK_only (req->sv2);
628 SvSETMAGIC (req->sv2);
629 PUSHs (sv_result);
630 }
557 break; 631 break;
558 632
633 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634 if (req->result > 0)
635 SvIV_set (sv_result, 0);
636 /* FALLTHROUGH */
637
559 default: 638 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 639 PUSHs (sv_result);
561 break; 640 break;
562 } 641 }
563 642
564 errno = req->errorno; 643 errno = req->errorno;
565 644
566 PUTBACK; 645 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 646 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 647 SPAGAIN;
648
649 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
650 SvREFCNT_dec (sv_result);
651 else
652 sv_result_cache = sv_result;
569 653
570 FREETMPS; 654 FREETMPS;
571 LEAVE; 655 LEAVE;
656
657 PUTBACK;
572 } 658 }
573 659
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 660 return !!SvTRUE (ERRSV);
589} 661}
590 662
591static void req_destroy (aio_req req) 663static void req_destroy (aio_req req)
592{ 664{
593 if (req->self) 665 if (req->self)
… …
596 SvREFCNT_dec (req->self); 668 SvREFCNT_dec (req->self);
597 } 669 }
598 670
599 SvREFCNT_dec (req->sv1); 671 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 675 SvREFCNT_dec (req->callback);
602 676
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 677 Safefree (req);
607} 678}
608 679
609static void req_cancel_subs (aio_req grp) 680static void req_cancel_subs (aio_req grp)
610{ 681{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 682 if (grp->type != EIO_GROUP)
614 return; 683 return;
615 684
616 SvREFCNT_dec (grp->sv2); 685 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 686 grp->sv2 = 0;
618 687
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 688 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 689}
622 690
623static void req_cancel (aio_req req) 691static void create_respipe (void)
624{ 692{
625 req->flags |= FLAG_CANCELLED; 693 if (s_epipe_renew (&respipe))
626 694 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 695}
629 696
630X_THREAD_PROC (aio_proc);
631
632static void start_thread (void)
633{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait () 697static void poll_wait (void)
726{ 698{
727 fd_set rfd;
728
729 while (nreqs) 699 while (eio_nreqs ())
730 { 700 {
731 int size; 701 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 702
703 X_LOCK (reslock);
733 size = res_queue.size; 704 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 705 X_UNLOCK (reslock);
735 706
736 if (size) 707 if (size)
737 return; 708 return;
738 709
739 maybe_start_thread (); 710 etp_maybe_start_thread ();
740 711
741 FD_ZERO(&rfd); 712 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 713 }
746} 714}
747 715
748static int poll_cb () 716static int poll_cb (void)
749{ 717{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 718 for (;;)
763 { 719 {
764 for (;;) 720 int res = eio_poll ();
765 {
766 maybe_start_thread ();
767 721
768 X_LOCK (reslock); 722 if (res > 0)
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 {
773 --npending;
774
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 }
796 else
797 {
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0); 723 croak (0);
803 }
804 724
805 count++; 725 if (!max_outstanding || max_outstanding > eio_nreqs ())
806 } 726 return res;
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 }
821
822 if (nreqs <= max_outstanding)
823 break;
824 727
825 poll_wait (); 728 poll_wait ();
826
827 ++maxreqs;
828 } 729 }
730}
829 731
830 unblock_sig (); 732static void ecb_cold
831 return count; 733reinit (void)
734{
735 create_respipe ();
736
737 if (eio_init (want_poll, done_poll) < 0)
738 croak ("IO::AIO: unable to initialise eio library");
832} 739}
833 740
834/*****************************************************************************/ 741/*****************************************************************************/
835/* work around various missing functions */
836 742
837#if !HAVE_PREADWRITE 743#if !_POSIX_MAPPED_FILES
838# define pread aio_pread 744# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
839# define pwrite aio_pwrite 745# define munmap(addr,length) (errno = ENOSYS, -1)
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif 746#endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014 747
1015 if (res < 0 748#if !_POSIX_MEMORY_PROTECTION
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 749# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1017#if __solaris 750# define PROT_NONE 0
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 751# define PROT_WRITE 0
752# define MAP_PRIVATE 0
753# define MAP_SHARED 0
754# define MAP_FIXED 0
1019#endif 755#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025 756
1026 res = 0; 757#define MMAP_MAGIC PERL_MAGIC_ext
1027 758
1028 while (count) 759static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1029 { 760{
1030 ssize_t cnt; 761 int old_errno = errno;
1031 762 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 763 errno = old_errno;
1033 764
1034 if (cnt <= 0) 765 mg->mg_obj = 0; /* just in case */
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039 766
1040 cnt = write (ofd, aio_buf, cnt); 767 SvREADONLY_off (sv);
1041 768
1042 if (cnt <= 0) 769 if (SvPVX (sv) != mg->mg_ptr)
1043 { 770 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047 771
1048 offset += cnt; 772 SvCUR_set (sv, 0);
1049 res += cnt; 773 SvPVX (sv) = 0;
1050 count -= cnt; 774 SvOK_off (sv);
1051 }
1052 }
1053 775
1054 return res; 776 return 0;
1055} 777}
1056 778
1057/* read a full directory */ 779static MGVTBL mmap_vtbl = {
1058static void scandir_ (aio_req req, worker *self) 780 0, 0, 0, 0, mmap_free
1059{ 781};
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117 782
1118/*****************************************************************************/ 783/*****************************************************************************/
1119 784
1120X_THREAD_PROC (aio_proc) 785static SV * get_cb (SV *cb_sv)
1121{ 786{
1122 {//D 787 SvGETMAGIC (cb_sv);
1123 aio_req req; 788 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355} 789}
1356 790
1357#define dREQ \ 791#define dREQ \
792 SV *cb_cv; \
1358 aio_req req; \ 793 aio_req req; \
1359 int req_pri = next_pri; \ 794 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \ 795 next_pri = EIO_PRI_DEFAULT; \
1361 \ 796 \
1362 if (SvOK (callback) && !SvROK (callback)) \ 797 cb_cv = get_cb (callback); \
1363 croak ("callback must be undef or of reference type"); \
1364 \ 798 \
1365 Newz (0, req, 1, aio_cb); \ 799 Newz (0, req, 1, eio_req); \
1366 if (!req) \ 800 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \ 801 croak ("out of memory during eio_req allocation"); \
1368 \ 802 \
1369 req->callback = newSVsv (callback); \ 803 req->callback = SvREFCNT_inc (cb_cv); \
1370 req->pri = req_pri 804 req->pri = req_pri
1371 805
1372#define REQ_SEND \ 806#define REQ_SEND \
807 PUTBACK; \
1373 req_send (req); \ 808 req_submit (req); \
809 SPAGAIN; \
1374 \ 810 \
1375 if (GIMME_V != G_VOID) \ 811 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 812 XPUSHs (req_sv (req, aio_req_stash));
1377 813
814static void
815req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816{
817 if (SvROK (path))
818 {
819 AV *av = (AV *)SvRV (path);
820 SV *wdob;
821
822 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
823 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
824
825 path = AvARRAY (av)[1];
826 wdob = AvARRAY (av)[0];
827
828 *wd = SvAIO_WD (wdob);
829 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
830 }
831
832 *pathsv = newSVsv (path);
833 *ptr = SvPVbyte_nolen (*pathsv);
834}
835
836static void
837req_set_path1 (aio_req req, SV *path)
838{
839 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840}
841
842static void
843req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844{
845 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846
847 switch (SvTYPE (rv))
848 {
849 case SVt_PVIO:
850 case SVt_PVLV:
851 case SVt_PVGV:
852 req->type = type_fh;
853 req->sv1 = newSVsv (fh_or_path);
854 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855 break;
856
857 default:
858 req->type = type_path;
859 req_set_path1 (req, fh_or_path);
860 break;
861 }
862
863}
864
1378MODULE = IO::AIO PACKAGE = IO::AIO 865MODULE = IO::AIO PACKAGE = IO::AIO
1379 866
1380PROTOTYPES: ENABLE 867PROTOTYPES: ENABLE
1381 868
1382BOOT: 869BOOT:
1383{ 870{
871 static const struct {
872 const char *name;
873 IV iv;
874 } *civ, const_iv[] = {
875# define const_niv(name, value) { # name, (IV) value },
876# define const_iv(name) { # name, (IV) name },
877# define const_eio(name) { # name, (IV) EIO_ ## name },
878 const_iv (EXDEV)
879 const_iv (ENOSYS)
880 const_iv (O_RDONLY)
881 const_iv (O_WRONLY)
882 const_iv (O_RDWR)
883 const_iv (O_CREAT)
884 const_iv (O_TRUNC)
885 const_iv (O_EXCL)
886 const_iv (O_APPEND)
887
888 const_iv (O_ASYNC)
889 const_iv (O_DIRECT)
890 const_iv (O_NOATIME)
891
892 const_iv (O_CLOEXEC)
893 const_iv (O_NOCTTY)
894 const_iv (O_NOFOLLOW)
895 const_iv (O_NONBLOCK)
896 const_iv (O_EXEC)
897 const_iv (O_SEARCH)
898 const_iv (O_DIRECTORY)
899 const_iv (O_DSYNC)
900 const_iv (O_RSYNC)
901 const_iv (O_SYNC)
902 const_iv (O_TTY_INIT)
903
904 const_iv (S_IFIFO)
905 const_iv (S_IFCHR)
906 const_iv (S_IFBLK)
907 const_iv (S_IFLNK)
908 const_iv (S_IFREG)
909 const_iv (S_IFDIR)
910 const_iv (S_IFWHT)
911 const_iv (S_IFSOCK)
912 const_iv (S_IFMT)
913
914 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
915 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
916 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
917 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
918 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
919 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
920
921 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
922 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
923 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
924 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
925 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
926
927 const_iv (ST_RDONLY)
928 const_iv (ST_NOSUID)
929 const_iv (ST_NODEV)
930 const_iv (ST_NOEXEC)
931 const_iv (ST_SYNCHRONOUS)
932 const_iv (ST_MANDLOCK)
933 const_iv (ST_WRITE)
934 const_iv (ST_APPEND)
935 const_iv (ST_IMMUTABLE)
936 const_iv (ST_NOATIME)
937 const_iv (ST_NODIRATIME)
938 const_iv (ST_RELATIME)
939
940 const_iv (PROT_NONE)
941 const_iv (PROT_EXEC)
942 const_iv (PROT_READ)
943 const_iv (PROT_WRITE)
944
945 /*const_iv (MAP_FIXED)*/
946 const_iv (MAP_PRIVATE)
947 const_iv (MAP_SHARED)
948 const_iv (MAP_ANONYMOUS)
949
950 /* linuxish */
951 const_iv (MAP_HUGETLB)
952 const_iv (MAP_LOCKED)
953 const_iv (MAP_NORESERVE)
954 const_iv (MAP_POPULATE)
955 const_iv (MAP_NONBLOCK)
956
957 const_eio (MCL_FUTURE)
958 const_eio (MCL_CURRENT)
959
960 const_eio (MS_ASYNC)
961 const_eio (MS_INVALIDATE)
962 const_eio (MS_SYNC)
963
964 const_eio (MT_MODIFY)
965
966 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967 const_eio (SYNC_FILE_RANGE_WRITE)
968 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969
970 const_eio (FALLOC_FL_KEEP_SIZE)
971
972 const_eio (READDIR_DENTS)
973 const_eio (READDIR_DIRS_FIRST)
974 const_eio (READDIR_STAT_ORDER)
975 const_eio (READDIR_FOUND_UNKNOWN)
976
977 const_eio (DT_UNKNOWN)
978 const_eio (DT_FIFO)
979 const_eio (DT_CHR)
980 const_eio (DT_DIR)
981 const_eio (DT_BLK)
982 const_eio (DT_REG)
983 const_eio (DT_LNK)
984 const_eio (DT_SOCK)
985 const_eio (DT_WHT)
986 };
987
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 988 aio_stash = gv_stashpv ("IO::AIO" , 1);
989 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
990 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
991 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 992
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 993 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 994 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 995
1403 if (!create_pipe (respipe)) 996 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 997
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 998 reinit ();
1407} 999}
1408 1000
1409void 1001void
1002reinit ()
1003 PROTOTYPE:
1004
1005void
1410max_poll_reqs (int nreqs) 1006max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1007 PROTOTYPE: $
1412 CODE: 1008 CODE:
1413 max_poll_reqs = nreqs; 1009 eio_set_max_poll_reqs (nreqs);
1414 1010
1415void 1011void
1416max_poll_time (double nseconds) 1012max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1013 PROTOTYPE: $
1418 CODE: 1014 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1015 eio_set_max_poll_time (nseconds);
1420 1016
1421void 1017void
1422min_parallel (int nthreads) 1018min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1019 PROTOTYPE: $
1432 CODE: 1020 CODE:
1433 set_max_idle (nthreads); 1021 eio_set_min_parallel (nthreads);
1434 1022
1435int 1023void
1436max_outstanding (int maxreqs) 1024max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1025 PROTOTYPE: $
1438 CODE: 1026 CODE:
1439 RETVAL = max_outstanding; 1027 eio_set_max_parallel (nthreads);
1028
1029void
1030max_idle (unsigned int nthreads)
1031 PROTOTYPE: $
1032 CODE:
1033 eio_set_max_idle (nthreads);
1034
1035void
1036idle_timeout (unsigned int seconds)
1037 PROTOTYPE: $
1038 CODE:
1039 eio_set_idle_timeout (seconds);
1040
1041void
1042max_outstanding (unsigned int maxreqs)
1043 PROTOTYPE: $
1044 CODE:
1440 max_outstanding = maxreqs; 1045 max_outstanding = maxreqs;
1441 OUTPUT: 1046
1442 RETVAL 1047void
1048aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1049 PPCODE:
1050{
1051 dREQ;
1052
1053 req->type = EIO_WD_OPEN;
1054 req_set_path1 (req, pathname);
1055
1056 REQ_SEND;
1057}
1443 1058
1444void 1059void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1060aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1061 PPCODE:
1448{ 1062{
1449 dREQ; 1063 dREQ;
1450 1064
1451 req->type = REQ_OPEN; 1065 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1066 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1067 req->int1 = flags;
1455 req->mode = mode; 1068 req->int2 = mode;
1456 1069
1457 REQ_SEND; 1070 REQ_SEND;
1458} 1071}
1459 1072
1460void 1073void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1074aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1075 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1076 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1077 aio_fdatasync = EIO_FDATASYNC
1078 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1079 PPCODE:
1468{ 1080{
1081 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1082 dREQ;
1470 1083
1471 req->type = ix; 1084 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1085 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1086 req->int1 = fd;
1087
1088 REQ_SEND (req);
1089}
1090
1091void
1092aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1093 PPCODE:
1094{
1095 int fd = s_fileno_croak (fh, 0);
1096 dREQ;
1097
1098 req->type = EIO_SYNC_FILE_RANGE;
1099 req->sv1 = newSVsv (fh);
1100 req->int1 = fd;
1101 req->offs = offset;
1102 req->size = nbytes;
1103 req->int2 = flags;
1104
1105 REQ_SEND (req);
1106}
1107
1108void
1109aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1110 PPCODE:
1111{
1112 int fd = s_fileno_croak (fh, 0);
1113 dREQ;
1114
1115 req->type = EIO_FALLOCATE;
1116 req->sv1 = newSVsv (fh);
1117 req->int1 = fd;
1118 req->int2 = mode;
1119 req->offs = offset;
1120 req->size = len;
1121
1122 REQ_SEND (req);
1123}
1124
1125void
1126aio_close (SV *fh, SV *callback=&PL_sv_undef)
1127 PPCODE:
1128{
1129 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130 int fd = s_fileno_croak (fh, 0);
1131 dREQ;
1132
1133 if (expect_false (close_fd < 0))
1134 {
1135 int pipefd [2];
1136
1137 if (
1138#ifdef _WIN32
1139 _pipe (pipefd, 1, _O_BINARY) < 0
1140#else
1141 pipe (pipefd) < 0
1142 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1143#endif
1144 || close (pipefd [1]) < 0
1145 )
1146 abort (); /*D*/
1147
1148 close_fd = pipefd [0];
1149 }
1150
1151 req->type = EIO_DUP2;
1152 req->int1 = close_fd;
1153 req->sv2 = newSVsv (fh);
1154 req->int2 = fd;
1474 1155
1475 REQ_SEND (req); 1156 REQ_SEND (req);
1476} 1157}
1477 1158
1478void 1159void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1160aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1161 ALIAS:
1481 aio_read = REQ_READ 1162 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1163 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1164 PPCODE:
1485{ 1165{
1486 STRLEN svlen; 1166 STRLEN svlen;
1167 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1168 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1169 UV len = SvUV (length);
1489 1170
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1171 if (dataoffset < 0)
1494 dataoffset += svlen; 1172 dataoffset += svlen;
1495 1173
1496 if (dataoffset < 0 || dataoffset > svlen) 1174 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1175 croak ("dataoffset outside of data scalar");
1498 1176
1499 if (ix == REQ_WRITE) 1177 if (ix == EIO_WRITE)
1500 { 1178 {
1501 /* write: check length and adjust. */ 1179 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1180 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1181 len = svlen - dataoffset;
1504 } 1182 }
1505 else 1183 else
1506 { 1184 {
1507 /* read: grow scalar as necessary */ 1185 /* read: check type and grow scalar as necessary */
1186 SvUPGRADE (data, SVt_PV);
1508 svptr = SvGROW (data, len + dataoffset + 1); 1187 svptr = SvGROW (data, len + dataoffset + 1);
1509 } 1188 }
1510 1189
1511 if (len < 0)
1512 croak ("length must not be negative");
1513
1514 { 1190 {
1515 dREQ; 1191 dREQ;
1516 1192
1517 req->type = ix; 1193 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1194 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1195 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1196 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1197 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1198 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1199 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1200 req->stroffset = dataoffset;
1526 1201
1527 if (!SvREADONLY (data)) 1202 if (!SvREADONLY (data))
1528 { 1203 {
1529 SvREADONLY_on (data); 1204 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1208 REQ_SEND;
1534 } 1209 }
1535} 1210}
1536 1211
1537void 1212void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1213aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1214 ALIAS:
1215 aio_readlink = EIO_READLINK
1216 aio_realpath = EIO_REALPATH
1540 PPCODE: 1217 PPCODE:
1541{ 1218{
1542 SV *data;
1543 dREQ; 1219 dREQ;
1544 1220
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1221 req->type = ix;
1549 req->sv1 = newSVsv (path); 1222 req_set_path1 (req, pathname);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1223
1554 REQ_SEND; 1224 REQ_SEND;
1555} 1225}
1556 1226
1557void 1227void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1228aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1229 PPCODE:
1561{ 1230{
1231 int ifd = s_fileno_croak (in_fh , 0);
1232 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1233 dREQ;
1563 1234
1564 req->type = REQ_SENDFILE; 1235 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1236 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1237 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1238 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1239 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1240 req->offs = in_offset;
1570 req->size = length; 1241 req->size = length;
1571 1242
1572 REQ_SEND; 1243 REQ_SEND;
1573} 1244}
1574 1245
1575void 1246void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1247aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1248 PPCODE:
1579{ 1249{
1250 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1251 dREQ;
1581 1252
1582 req->type = REQ_READAHEAD; 1253 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1254 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1255 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1256 req->offs = offset;
1586 req->size = length; 1257 req->size = length;
1587 1258
1588 REQ_SEND; 1259 REQ_SEND;
1589} 1260}
1590 1261
1591void 1262void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1263aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1264 ALIAS:
1594 aio_stat = REQ_STAT 1265 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1266 aio_lstat = EIO_LSTAT
1267 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1268 PPCODE:
1597{ 1269{
1598 dREQ; 1270 dREQ;
1599 1271
1600 req->ptr2 = malloc (sizeof (Stat_t));
1601 if (!req->ptr2)
1602 {
1603 req_destroy (req);
1604 croak ("out of memory during aio_stat statdata allocation");
1605 }
1606
1607 req->flags |= FLAG_PTR2_FREE;
1608 req->sv1 = newSVsv (fh_or_path); 1272 req->sv1 = newSVsv (fh_or_path);
1609 1273 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 }
1615 else
1616 {
1617 req->type = REQ_FSTAT;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1619 }
1620
1621 REQ_SEND; 1274 REQ_SEND;
1622} 1275}
1276
1277UV
1278major (UV dev)
1279 ALIAS:
1280 minor = 1
1281 CODE:
1282 RETVAL = ix ? major (dev) : minor (dev);
1283 OUTPUT:
1284 RETVAL
1285
1286UV
1287makedev (UV maj, UV min)
1288 CODE:
1289 RETVAL = makedev (maj, min);
1290 OUTPUT:
1291 RETVAL
1623 1292
1624void 1293void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1294aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1295 PPCODE:
1627{ 1296{
1628 dREQ; 1297 dREQ;
1629 1298
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1299 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1300 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1301 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1302
1645 REQ_SEND; 1303 REQ_SEND;
1646} 1304}
1647 1305
1648void 1306void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1307aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1650 PPCODE: 1308 PPCODE:
1651{ 1309{
1652 dREQ; 1310 dREQ;
1653 1311
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1312 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1313 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1314
1668 REQ_SEND; 1315 REQ_SEND;
1669} 1316}
1670 1317
1671void 1318void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1319aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1320 ALIAS:
1321 aio_chmod = EIO_CHMOD
1322 aio_mkdir = EIO_MKDIR
1673 PPCODE: 1323 PPCODE:
1674{ 1324{
1675 dREQ; 1325 dREQ;
1676 1326
1677 req->mode = mode; 1327 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1328 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1329
1691 REQ_SEND; 1330 REQ_SEND;
1692} 1331}
1693 1332
1694void 1333void
… …
1697{ 1336{
1698 dREQ; 1337 dREQ;
1699 1338
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1339 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1340 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1341 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703
1704 if (SvPOK (fh_or_path))
1705 {
1706 req->type = REQ_CHOWN;
1707 req->ptr1 = SvPVbyte_nolen (req->sv1);
1708 }
1709 else
1710 {
1711 req->type = REQ_FCHOWN;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1713 }
1714 1342
1715 REQ_SEND; 1343 REQ_SEND;
1344}
1345
1346void
1347aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1348 PPCODE:
1349{
1350 dREQ;
1351
1352 req->type = EIO_READDIR;
1353 req->sv1 = newSVsv (pathname);
1354 req->ptr1 = SvPVbyte_nolen (req->sv1);
1355 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356
1357 if (flags & EIO_READDIR_DENTS)
1358 req->int1 |= EIO_READDIR_CUSTOM2;
1359
1360 REQ_SEND;
1716} 1361}
1717 1362
1718void 1363void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1364aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1365 ALIAS:
1721 aio_unlink = REQ_UNLINK 1366 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1367 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1368 aio_readdir = EIO_READDIR
1724 PPCODE: 1369 PPCODE:
1725{ 1370{
1726 dREQ; 1371 dREQ;
1727 1372
1728 req->type = ix; 1373 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1374 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731 1375
1732 REQ_SEND; 1376 REQ_SEND;
1733} 1377}
1734 1378
1735void 1379void
1380aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1381 ALIAS:
1382 aio_link = EIO_LINK
1383 aio_symlink = EIO_SYMLINK
1384 aio_rename = EIO_RENAME
1385 PPCODE:
1386{
1387 dREQ;
1388 eio_wd wd2;
1389
1390 req->type = ix;
1391 req_set_path1 (req, oldpath);
1392 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393 req->int3 = (long)wd2;
1394
1395 REQ_SEND;
1396}
1397
1398void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1399aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1737 PPCODE: 1400 PPCODE:
1738{ 1401{
1739 dREQ; 1402 dREQ;
1740 1403
1741 req->type = REQ_MKDIR; 1404 req->type = EIO_MKNOD;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode; 1405 req->int2 = (mode_t)mode;
1745 1406 req->offs = dev;
1746 REQ_SEND; 1407 req_set_path1 (req, pathname);
1747}
1748
1749void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS:
1752 aio_link = REQ_LINK
1753 aio_symlink = REQ_SYMLINK
1754 aio_rename = REQ_RENAME
1755 PPCODE:
1756{
1757 dREQ;
1758
1759 req->type = ix;
1760 req->sv2 = newSVsv (oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2);
1762 req->sv1 = newSVsv (newpath);
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1408
1765 REQ_SEND; 1409 REQ_SEND;
1766} 1410}
1767 1411
1768void 1412void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1413aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1770 PPCODE: 1414 ALIAS:
1415 aio_mtouch = EIO_MTOUCH
1416 aio_msync = EIO_MSYNC
1417 PPCODE:
1771{ 1418{
1772 dREQ; 1419 STRLEN svlen;
1773 1420 char *svptr = SvPVbyte (data, svlen);
1421 UV len = SvUV (length);
1422
1423 if (offset < 0)
1424 offset += svlen;
1425
1426 if (offset < 0 || offset > svlen)
1427 croak ("offset outside of scalar");
1428
1429 if (!SvOK (length) || len + offset > svlen)
1430 len = svlen - offset;
1431
1432 {
1433 dREQ;
1434
1435 req->type = ix;
1436 req->sv2 = SvREFCNT_inc (data);
1437 req->ptr2 = (char *)svptr + offset;
1438 req->size = len;
1439 req->int1 = flags;
1440
1441 REQ_SEND;
1442 }
1443}
1444
1445void
1446aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 STRLEN svlen;
1450 char *svptr = SvPVbyte (data, svlen);
1451 UV len = SvUV (length);
1452
1453 if (offset < 0)
1454 offset += svlen;
1455
1456 if (offset < 0 || offset > svlen)
1457 croak ("offset outside of scalar");
1458
1459 if (!SvOK (length) || len + offset > svlen)
1460 len = svlen - offset;
1461
1462 {
1463 dREQ;
1464
1774 req->type = REQ_MKNOD; 1465 req->type = EIO_MLOCK;
1775 req->sv1 = newSVsv (pathname); 1466 req->sv2 = SvREFCNT_inc (data);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1); 1467 req->ptr2 = (char *)svptr + offset;
1777 req->mode = (mode_t)mode;
1778 req->offs = dev; 1468 req->size = len;
1779 1469
1780 REQ_SEND; 1470 REQ_SEND;
1471 }
1472}
1473
1474void
1475aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1476 PPCODE:
1477{
1478 dREQ;
1479
1480 req->type = EIO_MLOCKALL;
1481 req->int1 = flags;
1482
1483 REQ_SEND;
1781} 1484}
1782 1485
1783void 1486void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1487aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1488 PPCODE:
1786{ 1489{
1787 dREQ; 1490 dREQ;
1788 1491
1789 req->type = REQ_BUSY; 1492 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1493 req->nv1 = delay < 0. ? 0. : delay;
1791 1494
1792 REQ_SEND; 1495 REQ_SEND;
1793} 1496}
1794 1497
1795void 1498void
1796aio_group (SV *callback=&PL_sv_undef) 1499aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1500 PPCODE:
1799{ 1501{
1800 dREQ; 1502 dREQ;
1801 1503
1802 req->type = REQ_GROUP; 1504 req->type = EIO_GROUP;
1803 1505
1804 req_send (req); 1506 req_submit (req);
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1507 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1508}
1807 1509
1808void 1510void
1809aio_nop (SV *callback=&PL_sv_undef) 1511aio_nop (SV *callback=&PL_sv_undef)
1512 ALIAS:
1513 aio_nop = EIO_NOP
1514 aio_sync = EIO_SYNC
1810 PPCODE: 1515 PPCODE:
1811{ 1516{
1812 dREQ; 1517 dREQ;
1813 1518
1814 req->type = REQ_NOP; 1519 req->type = ix;
1815 1520
1816 REQ_SEND; 1521 REQ_SEND;
1817} 1522}
1818 1523
1819int 1524int
1820aioreq_pri (int pri = 0) 1525aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1526 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1527 RETVAL = next_pri;
1824 if (items > 0) 1528 if (items > 0)
1825 { 1529 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1530 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1531 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1532 next_pri = pri;
1829 } 1533 }
1830 OUTPUT: 1534 OUTPUT:
1831 RETVAL 1535 RETVAL
1832 1536
1833void 1537void
1834aioreq_nice (int nice = 0) 1538aioreq_nice (int nice = 0)
1835 CODE: 1539 CODE:
1836 nice = next_pri - nice; 1540 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1541 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1542 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1543 next_pri = nice;
1840 1544
1841void 1545void
1842flush () 1546flush ()
1843 PROTOTYPE:
1844 CODE: 1547 CODE:
1845 while (nreqs) 1548 while (eio_nreqs ())
1846 { 1549 {
1847 poll_wait (); 1550 poll_wait ();
1848 poll_cb (); 1551 poll_cb ();
1849 } 1552 }
1850 1553
1851int 1554int
1852poll() 1555poll ()
1853 PROTOTYPE:
1854 CODE: 1556 CODE:
1855 poll_wait (); 1557 poll_wait ();
1856 RETVAL = poll_cb (); 1558 RETVAL = poll_cb ();
1857 OUTPUT: 1559 OUTPUT:
1858 RETVAL 1560 RETVAL
1859 1561
1860int 1562int
1861poll_fileno() 1563poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1564 CODE:
1864 RETVAL = respipe [0]; 1565 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1566 OUTPUT:
1866 RETVAL 1567 RETVAL
1867 1568
1868int 1569int
1869poll_cb(...) 1570poll_cb (...)
1870 PROTOTYPE: 1571 PROTOTYPE:
1871 CODE: 1572 CODE:
1872 RETVAL = poll_cb (); 1573 RETVAL = poll_cb ();
1873 OUTPUT: 1574 OUTPUT:
1874 RETVAL 1575 RETVAL
1875 1576
1876void 1577void
1877poll_wait() 1578poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1579 CODE:
1880 poll_wait (); 1580 poll_wait ();
1881 1581
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1582int
1920nreqs() 1583nreqs ()
1921 PROTOTYPE:
1922 CODE: 1584 CODE:
1923 RETVAL = nreqs; 1585 RETVAL = eio_nreqs ();
1924 OUTPUT: 1586 OUTPUT:
1925 RETVAL 1587 RETVAL
1926 1588
1927int 1589int
1928nready() 1590nready ()
1929 PROTOTYPE:
1930 CODE: 1591 CODE:
1931 RETVAL = get_nready (); 1592 RETVAL = eio_nready ();
1932 OUTPUT: 1593 OUTPUT:
1933 RETVAL 1594 RETVAL
1934 1595
1935int 1596int
1936npending() 1597npending ()
1937 PROTOTYPE:
1938 CODE: 1598 CODE:
1939 RETVAL = get_npending (); 1599 RETVAL = eio_npending ();
1940 OUTPUT: 1600 OUTPUT:
1941 RETVAL 1601 RETVAL
1942 1602
1943int 1603int
1944nthreads() 1604nthreads ()
1945 PROTOTYPE:
1946 CODE: 1605 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1606 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1607 OUTPUT:
1951 RETVAL 1608 RETVAL
1952 1609
1610int
1611fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1612 CODE:
1613 RETVAL = posix_fadvise (fh, offset, length, advice);
1614 OUTPUT:
1615 RETVAL
1616
1617IV
1618sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1619 CODE:
1620 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621 OUTPUT:
1622 RETVAL
1623
1624void
1625mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1626 PPCODE:
1627 sv_unmagic (scalar, MMAP_MAGIC);
1628{
1629 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631 if (addr == (void *)-1)
1632 XSRETURN_NO;
1633
1634 sv_force_normal (scalar);
1635
1636 /* we store the length in mg_obj, as namlen is I32 :/ */
1637 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1638 ->mg_obj = (SV *)length;
1639
1640 SvUPGRADE (scalar, SVt_PV); /* nop... */
1641
1642 if (!(prot & PROT_WRITE))
1643 SvREADONLY_on (scalar);
1644
1645 if (SvLEN (scalar))
1646 Safefree (SvPVX (scalar));
1647
1648 SvPVX (scalar) = (char *)addr;
1649 SvCUR_set (scalar, length);
1650 SvLEN_set (scalar, 0);
1651 SvPOK_only (scalar);
1652
1653 XSRETURN_YES;
1654}
1655
1656void
1657munmap (SV *scalar)
1658 CODE:
1659 sv_unmagic (scalar, MMAP_MAGIC);
1660
1661int
1662madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663 ALIAS:
1664 mprotect = 1
1665 CODE:
1666{
1667 STRLEN svlen;
1668 void *addr = SvPVbyte (scalar, svlen);
1669 size_t len = SvUV (length);
1670
1671 if (offset < 0)
1672 offset += svlen;
1673
1674 if (offset < 0 || offset > svlen)
1675 croak ("offset outside of scalar");
1676
1677 if (!SvOK (length) || len + offset > svlen)
1678 len = svlen - offset;
1679
1680 addr = (void *)(((intptr_t)addr) + offset);
1681 eio_page_align (&addr, &len);
1682
1683 switch (ix)
1684 {
1685 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1686 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1687 }
1688}
1689 OUTPUT:
1690 RETVAL
1691
1692int
1693munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1694 CODE:
1695{
1696 STRLEN svlen;
1697 void *addr = SvPVbyte (scalar, svlen);
1698 size_t len = SvUV (length);
1699
1700 if (offset < 0)
1701 offset += svlen;
1702
1703 if (offset < 0 || offset > svlen)
1704 croak ("offset outside of scalar");
1705
1706 if (!SvOK (length) || len + offset > svlen)
1707 len = svlen - offset;
1708
1709 addr = (void *)(((intptr_t)addr) + offset);
1710 eio_page_align (&addr, &len);
1711#if _POSIX_MEMLOCK_RANGE
1712 RETVAL = munlock (addr, len);
1713#else
1714 RETVAL = ((errno = ENOSYS), -1);
1715#endif
1716}
1717 OUTPUT:
1718 RETVAL
1719
1720int
1721munlockall ()
1722 CODE:
1723#if _POSIX_MEMLOCK
1724 munlockall ();
1725#else
1726 RETVAL = -1;
1727 errno = ENOSYS;
1728#endif
1729 OUTPUT:
1730 RETVAL
1731
1732void _on_next_submit (SV *cb)
1733 CODE:
1734 SvREFCNT_dec (on_next_submit);
1735 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736
1953PROTOTYPES: DISABLE 1737PROTOTYPES: DISABLE
1954 1738
1739MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740
1741void
1742DESTROY (SV *self)
1743 CODE:
1744{
1745 aio_wd wd = SvAIO_WD (self);
1746#if HAVE_AT
1747 SV *callback = &PL_sv_undef;
1748 dREQ; /* clobbers next_pri :/ */
1749 req->type = EIO_WD_CLOSE;
1750 req->wd = wd;
1751 REQ_SEND;
1752#else
1753 eio_wd_close_sync (wd);
1754#endif
1755}
1756
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1757MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1758
1957void 1759void
1958cancel (aio_req_ornot req) 1760cancel (aio_req_ornot req)
1959 CODE: 1761 CODE:
1960 req_cancel (req); 1762 eio_cancel (req);
1961 1763
1962void 1764void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1765cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1766 PPCODE:
1767{
1768 if (GIMME_V != G_VOID)
1769 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770
1771 if (items > 1)
1772 {
1773 SV *cb_cv =get_cb (callback);
1774
1965 SvREFCNT_dec (req->callback); 1775 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1776 req->callback = SvREFCNT_inc (cb_cv);
1777 }
1778}
1967 1779
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1780MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1781
1970void 1782void
1971add (aio_req grp, ...) 1783add (aio_req grp, ...)
1972 PPCODE: 1784 PPCODE:
1973{ 1785{
1974 int i; 1786 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 1787
1980 if (grp->int1 == 2) 1788 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1789 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1790
1983 for (i = 1; i < items; ++i ) 1791 for (i = 1; i < items; ++i )
1984 { 1792 {
1793 aio_req req;
1794
1985 if (GIMME_V != G_VOID) 1795 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1796 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1797
1988 req = SvAIO_REQ (ST (i)); 1798 req = SvAIO_REQ (ST (i));
1989 1799
1990 if (req) 1800 if (req)
1991 { 1801 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 1802 }
2004} 1803}
2005 1804
2006void 1805void
2007cancel_subs (aio_req_ornot req) 1806cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1815 AV *av;
2017 1816
2018 grp->errorno = errno; 1817 grp->errorno = errno;
2019 1818
2020 av = newAV (); 1819 av = newAV ();
1820 av_extend (av, items - 1);
2021 1821
2022 for (i = 1; i < items; ++i ) 1822 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1823 av_push (av, newSVsv (ST (i)));
2024 1824
2025 SvREFCNT_dec (grp->sv1); 1825 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 1832 grp->errorno = errorno;
2033 1833
2034void 1834void
2035limit (aio_req grp, int limit) 1835limit (aio_req grp, int limit)
2036 CODE: 1836 CODE:
2037 grp->int2 = limit; 1837 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 1838
2040void 1839void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 1840feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 1841 CODE:
2043{ 1842{
2044 SvREFCNT_dec (grp->sv2); 1843 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 1844 grp->sv2 = newSVsv (callback);
1845 grp->feed = aio_grp_feed;
2046 1846
2047 if (grp->int2 <= 0) 1847 if (grp->int2 <= 0)
2048 grp->int2 = 2; 1848 grp->int2 = 2;
2049 1849
2050 aio_grp_feed (grp); 1850 eio_grp_limit (grp, grp->int2);
2051} 1851}
2052 1852

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