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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC vs.
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 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
29# undef send 42 #undef send
30# undef recv 43 #undef recv
31# undef stat 44 #undef stat
45 #undef lstat
32# undef fstat 46 #undef fstat
33# define lstat stat
34# undef truncate 47 #undef truncate
35# undef ftruncate 48 #undef ftruncate
36# undef open 49 #undef open
50 #undef link
37# undef close 51 #undef close
38# undef unlink 52 #undef unlink
53 #undef mkdir
39# undef rmdir 54 #undef rmdir
40# undef rename 55 #undef rename
41# undef lseek 56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
42 66
43# define chown(a,b,c) (errno = ENOSYS, -1) 67 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 68 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
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 69
57#else 70#else
58 71
59# include "autoconf/config.h"
60# include <sys/time.h> 72 #include <sys/time.h>
61# include <sys/select.h> 73 #include <sys/select.h>
62# include <unistd.h> 74 #include <unistd.h>
63# include <utime.h> 75 #include <utime.h>
64# include <signal.h> 76 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 77
67#endif 78 #define EIO_STRUCT_STAT Stat_t
68 79
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 80#endif
82#endif
83
84/* number of seconds after which idle threads exit */
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 81
95/* use NV for 32 bit perls as it allows larger offsets */ 82/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 83#if IVSIZE >= 8
84# define VAL64 IV
97# define SvVAL64 SvIV 85# define SvVAL64 SvIV
86# define newSVval64 newSViv
98#else 87#else
88# define VAL64 NV
99# define SvVAL64 SvNV 89# define SvVAL64 SvNV
90# define newSVval64 newSVnv
100#endif 91#endif
101 92
102#define dBUF \ 93/*****************************************************************************/
103 char *aio_buf; \ 94
104 X_LOCK (wrklock); \ 95#if __GNUC__ >= 3
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 96# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_UNLOCK (wrklock); \ 97#else
107 if (!aio_buf) \ 98# define expect(expr,value) (expr)
108 return -1; 99#endif
100
101#define expect_false(expr) expect ((expr) != 0, 0)
102#define expect_true(expr) expect ((expr) != 0, 1)
103
104/*****************************************************************************/
109 105
110typedef SV SV8; /* byte-sv, used for argument-checking */ 106typedef SV SV8; /* byte-sv, used for argument-checking */
107typedef int aio_rfd; /* read file desriptor */
108typedef int aio_wfd; /* write file descriptor */
109
110static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
111
112#define EIO_REQ_MEMBERS \
113 SV *callback; \
114 SV *sv1, *sv2; \
115 SV *sv3, *sv4; \
116 STRLEN stroffset; \
117 SV *self;
118
119#define EIO_NO_WRAPPERS 1
120
121#include "libeio/config.h"
122#include "libeio/eio.h"
123
124static int req_invoke (eio_req *req);
125#define EIO_FINISH(req) req_invoke (req)
126static void req_destroy (eio_req *grp);
127#define EIO_DESTROY(req) req_destroy (req)
128
129#include "libeio/eio.c"
130
131/* Linux/others */
132#ifndef O_ASYNC
133# define O_ASYNC 0
134#endif
135#ifndef O_DIRECT
136# define O_DIRECT 0
137#endif
138#ifndef O_NOATIME
139# define O_NOATIME 0
140#endif
141
142/* POSIX */
143#ifndef O_CLOEXEC
144# define O_CLOEXEC 0
145#endif
146#ifndef O_NOFOLLOW
147# define O_NOFOLLOW 0
148#endif
149#ifndef O_NOCTTY
150# define O_NOCTTY 0
151#endif
152#ifndef O_NONBLOCK
153# define O_NONBLOCK 0
154#endif
155#ifndef O_EXEC
156# define O_EXEC 0
157#endif
158#ifndef O_SEARCH
159# define O_SEARCH 0
160#endif
161#ifndef O_DIRECTORY
162# define O_DIRECTORY 0
163#endif
164#ifndef O_DSYNC
165# define O_DSYNC 0
166#endif
167#ifndef O_RSYNC
168# define O_RSYNC 0
169#endif
170#ifndef O_SYNC
171# define O_SYNC 0
172#endif
173#ifndef O_TTY_INIT
174# define O_TTY_INIT 0
175#endif
176
177#ifndef POSIX_FADV_NORMAL
178# define POSIX_FADV_NORMAL 0
179#endif
180#ifndef POSIX_FADV_SEQUENTIAL
181# define POSIX_FADV_SEQUENTIAL 0
182#endif
183#ifndef POSIX_FADV_RANDOM
184# define POSIX_FADV_RANDOM 0
185#endif
186#ifndef POSIX_FADV_NOREUSE
187# define POSIX_FADV_NOREUSE 0
188#endif
189#ifndef POSIX_FADV_WILLNEED
190# define POSIX_FADV_WILLNEED 0
191#endif
192#ifndef POSIX_FADV_DONTNEED
193# define POSIX_FADV_DONTNEED 0
194#endif
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#ifndef POSIX_MADV_NORMAL
201# define POSIX_MADV_NORMAL 0
202#endif
203#ifndef POSIX_MADV_SEQUENTIAL
204# define POSIX_MADV_SEQUENTIAL 0
205#endif
206#ifndef POSIX_MADV_RANDOM
207# define POSIX_MADV_RANDOM 0
208#endif
209#ifndef POSIX_MADV_WILLNEED
210# define POSIX_MADV_WILLNEED 0
211#endif
212#ifndef POSIX_MADV_DONTNEED
213# define POSIX_MADV_DONTNEED 0
214#endif
215
216#if !HAVE_POSIX_MADVISE
217# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218#endif
219
220#ifndef PROT_NONE
221# define PROT_NONE 0
222#endif
223#ifndef PROT_READ
224# define PROT_READ 0
225#endif
226#ifndef PROT_WRITE
227# define PROT_READ 0
228#endif
229#ifndef PROT_EXEC
230# define PROT_EXEC 0
231#endif
232
233#ifndef ST_RDONLY
234# define ST_RDONLY 0
235#endif
236#ifndef ST_NOSUID
237# define ST_NOSUID 0
238#endif
239#ifndef ST_NODEV
240# define ST_NODEV 0
241#endif
242#ifndef ST_NOEXEC
243# define ST_NOEXEC 0
244#endif
245#ifndef ST_SYNCHRONOUS
246# define ST_SYNCHRONOUS 0
247#endif
248#ifndef ST_MANDLOCK
249# define ST_MANDLOCK 0
250#endif
251#ifndef ST_WRITE
252# define ST_WRITE 0
253#endif
254#ifndef ST_APPEND
255# define ST_APPEND 0
256#endif
257#ifndef ST_IMMUTABLE
258# define ST_IMMUTABLE 0
259#endif
260#ifndef ST_NOATIME
261# define ST_NOATIME 0
262#endif
263#ifndef ST_NODIRATIME
264# define ST_NODIRATIME 0
265#endif
266#ifndef ST_RELATIME
267# define ST_RELATIME 0
268#endif
269
270#ifndef S_IFIFO
271# define S_IFIFO 0
272#endif
273#ifndef S_IFCHR
274# define S_IFCHR 0
275#endif
276#ifndef S_IFBLK
277# define S_IFBLK 0
278#endif
279#ifndef S_IFLNK
280# define S_IFLNK 0
281#endif
282#ifndef S_IFREG
283# define S_IFREG 0
284#endif
285#ifndef S_IFDIR
286# define S_IFDIR 0
287#endif
288#ifndef S_IFWHT
289# define S_IFWHT 0
290#endif
291#ifndef S_IFSOCK
292# define S_IFSOCK 0
293#endif
294
295#ifndef MAP_ANONYMOUS
296# ifdef MAP_ANON
297# define MAP_ANONYMOUS MAP_ANON
298# else
299# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300# endif
301#endif
302#ifndef MAP_HUGETLB
303# define MAP_HUGETLB 0
304#endif
305#ifndef MAP_LOCKED
306# define MAP_LOCKED 0
307#endif
308#ifndef MAP_NORESERVE
309# define MAP_NORESERVE 0
310#endif
311#ifndef MAP_POPULATE
312# define MAP_POPULATE 0
313#endif
314#ifndef MAP_NONBLOCK
315# define MAP_NONBLOCK 0
316#endif
317
318#ifndef makedev
319# define makedev(maj,min) (((maj) << 8) | (min))
320#endif
321#ifndef major
322# define major(dev) ((dev) >> 8)
323#endif
324#ifndef minor
325# define minor(dev) ((dev) & 0xff)
326#endif
327
328#ifndef PAGESIZE
329# define PAGESIZE sysconf (_SC_PAGESIZE)
330#endif
111 331
112enum { 332enum {
113 REQ_QUIT, 333 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}; 334};
129 335
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; 336typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 337typedef eio_req *aio_req_ornot;
338typedef eio_wd aio_wd;
166 339
167enum { 340static SV *on_next_submit;
168 PRI_MIN = -4, 341static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 342static int max_outstanding;
170 343
171 DEFAULT_PRI = 0, 344static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 345
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_osf [2], respipe [2] = { -1, -1 };
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); 346static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 347static void req_cancel (aio_req req);
376 348
349static void
350want_poll (void)
351{
352 /* write a dummy byte to the pipe so fh becomes ready */
353 s_epipe_signal (&respipe);
354}
355
356static void
357done_poll (void)
358{
359 /* read any signals sent by the worker threads */
360 s_epipe_drain (&respipe);
361}
362
377/* must be called at most once */ 363/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 364static SV *
365req_sv (aio_req req, HV *stash)
379{ 366{
380 if (!req->self) 367 if (!req->self)
381 { 368 {
382 req->self = (SV *)newHV (); 369 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 370 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 371 }
385 372
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 373 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 374}
388 375
389static aio_req SvAIO_REQ (SV *sv) 376static SV *
377newSVaio_wd (aio_wd wd)
378{
379 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
380}
381
382static aio_req
383SvAIO_REQ (SV *sv)
390{ 384{
391 MAGIC *mg; 385 MAGIC *mg;
392 386
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 387 if (!SvROK (sv)
388 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
389 || (SvSTASH (SvRV (sv)) != aio_grp_stash
390 && SvSTASH (SvRV (sv)) != aio_req_stash
391 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 392 croak ("object of class IO::AIO::REQ expected");
395 393
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 395
398 return mg ? (aio_req)mg->mg_ptr : 0; 396 return mg ? (aio_req)mg->mg_ptr : 0;
399} 397}
400 398
399static aio_wd
400SvAIO_WD (SV *sv)
401{
402 if (!SvROK (sv)
403 || SvTYPE (SvRV (sv)) != SVt_PVMG
404 || SvSTASH (SvRV (sv)) != aio_wd_stash)
405 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406
407 return (aio_wd)(long)SvIVX (SvRV (sv));
408}
409
410static void
401static void aio_grp_feed (aio_req grp) 411aio_grp_feed (aio_req grp)
402{ 412{
403 block_sig (); 413 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 414 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 415 dSP;
412 416
413 ENTER; 417 ENTER;
414 SAVETMPS; 418 SAVETMPS;
415 PUSHMARK (SP); 419 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 420 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 421 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 422 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 423 SPAGAIN;
420 FREETMPS; 424 FREETMPS;
421 LEAVE; 425 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 } 426 }
432
433 unblock_sig ();
434} 427}
435 428
436static void aio_grp_dec (aio_req grp) 429static void
430req_submit (eio_req *req)
437{ 431{
438 --grp->size; 432 eio_submit (req);
439 433
440 /* call feeder, if applicable */ 434 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 435 {
446 block_sig (); 436 dSP;
437 SV *cb = sv_2mortal (on_next_submit);
447 438
448 if (!req_invoke (grp)) 439 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 440
455 req_destroy (grp); 441 PUSHMARK (SP);
456 unblock_sig (); 442 PUTBACK;
443 call_sv (cb, G_DISCARD | G_EVAL);
457 } 444 }
458} 445}
459 446
447static int
460static int req_invoke (aio_req req) 448req_invoke (eio_req *req)
461{ 449{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 450 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 451 SvREADONLY_off (req->sv2);
466 452
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 453 if (!EIO_CANCELLED (req) && req->callback)
468 { 454 {
455 dSP;
456 static SV *sv_result_cache; /* caches the result integer SV */
457 SV *sv_result;
458
469 ENTER; 459 ENTER;
470 SAVETMPS; 460 SAVETMPS;
471 PUSHMARK (SP); 461 PUSHMARK (SP);
472 EXTEND (SP, 1); 462 EXTEND (SP, 1);
473 463
464 /* do not recreate the result IV from scratch each time */
465 if (expect_true (sv_result_cache))
466 {
467 sv_result = sv_result_cache; sv_result_cache = 0;
468 SvIV_set (sv_result, req->result);
469 SvIOK_only (sv_result);
470 }
471 else
472 {
473 sv_result = newSViv (req->result);
474 SvREADONLY_on (sv_result);
475 }
476
474 switch (req->type) 477 switch (req->type)
475 { 478 {
479 case EIO_WD_OPEN:
480 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
481 break;
482
476 case REQ_READDIR: 483 case EIO_READDIR:
477 { 484 {
478 SV *rv = &PL_sv_undef; 485 SV *rv = &PL_sv_undef;
479 486
480 if (req->result >= 0) 487 if (req->result >= 0)
481 { 488 {
482 int i; 489 int i;
483 char *buf = req->ptr2; 490 char *names = (char *)req->ptr2;
491 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 492 AV *av = newAV ();
485 493
486 av_extend (av, req->result - 1); 494 av_extend (av, req->result - 1);
487 495
488 for (i = 0; i < req->result; ++i) 496 for (i = 0; i < req->result; ++i)
489 { 497 {
490 SV *sv = newSVpv (buf, 0); 498 if (req->int1 & EIO_READDIR_DENTS)
499 {
500 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 501
502 if (req->int1 & EIO_READDIR_CUSTOM2)
503 {
504 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
505 AV *avent = newAV ();
506
507 av_extend (avent, 2);
508
509 if (!sv_type [ent->type])
510 {
511 sv_type [ent->type] = newSViv (ent->type);
512 SvREADONLY_on (sv_type [ent->type]);
513 }
514
515 av_store (avent, 0, namesv);
516 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
517 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
518
519 av_store (av, i, newRV_noinc ((SV *)avent));
520 }
521 else
492 av_store (av, i, sv); 522 av_store (av, i, namesv);
523
524 ++ent;
525 }
526 else
527 {
528 SV *name = newSVpv (names, 0);
529 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 530 names += SvCUR (name) + 1;
531 }
494 } 532 }
495 533
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 534 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 535 }
498 536
499 PUSHs (rv); 537 PUSHs (rv);
538
539 if (req->int1 & EIO_READDIR_CUSTOM1)
540 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 541 }
501 break; 542 break;
502 543
503 case REQ_OPEN: 544 case EIO_OPEN:
504 { 545 {
505 /* convert fd to fh */ 546 /* convert fd to fh */
506 SV *fh; 547 SV *fh = &PL_sv_undef;
507 548
508 PUSHs (sv_2mortal (newSViv (req->result))); 549 if (req->result >= 0)
509 PUTBACK; 550 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 551 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 552 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
553 char sym [64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
557 gv_init (gv, aio_stash, sym, symlen, 0);
512 558
513 fh = POPs; 559 symlen = snprintf (
514 PUSHMARK (SP); 560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 (int)req->result
565 );
566
567 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
568 fh = (SV *)gv;
569 }
570
515 XPUSHs (fh); 571 PUSHs (fh);
516 } 572 }
517 break; 573 break;
518 574
575 case EIO_STATVFS:
576 case EIO_FSTATVFS:
577 {
578 SV *rv = &PL_sv_undef;
579
580#ifndef _WIN32
581 if (req->result >= 0)
582 {
583 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584 HV *hv = newHV ();
585
586 rv = sv_2mortal (newRV_noinc ((SV *)hv));
587
588 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
589 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
590 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
591 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
592 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
593 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
594 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
595 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
596 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
597 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
598 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599 }
600#endif
601
602 PUSHs (rv);
603 }
604
605 break;
606
519 case REQ_GROUP: 607 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 608 req->int1 = 2; /* mark group as finished */
521 609
522 if (req->sv1) 610 if (req->sv1)
523 { 611 {
524 int i; 612 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 616 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 617 PUSHs (*av_fetch (av, i, 0));
530 } 618 }
531 break; 619 break;
532 620
533 case REQ_NOP: 621 case EIO_NOP:
534 case REQ_BUSY: 622 case EIO_BUSY:
535 break; 623 break;
536 624
537 case REQ_READLINK: 625 case EIO_READLINK:
626 case EIO_REALPATH:
538 if (req->result > 0) 627 if (req->result > 0)
539 { 628 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; 629 break;
545 630
546 case REQ_STAT: 631 case EIO_STAT:
547 case REQ_LSTAT: 632 case EIO_LSTAT:
548 case REQ_FSTAT: 633 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 634 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
635
550 PL_laststatval = req->result; 636 if (!(PL_laststatval = req->result))
637 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
551 PL_statcache = *(Stat_t *)(req->ptr2); 638 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 639
640 PUSHs (sv_result);
553 break; 641 break;
554 642
555 case REQ_READ: 643 case EIO_SEEK:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 644 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
557 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result)));
559 break; 645 break;
560 646
647 case EIO_READ:
648 {
649 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
650 *SvEND (req->sv2) = 0;
651 SvPOK_only (req->sv2);
652 SvSETMAGIC (req->sv2);
653 PUSHs (sv_result);
654 }
655 break;
656
657 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658 if (req->result > 0)
659 SvIV_set (sv_result, 0);
660 /* FALLTHROUGH */
661
561 default: 662 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 663 PUSHs (sv_result);
563 break; 664 break;
564 } 665 }
565 666
566 errno = req->errorno; 667 errno = req->errorno;
567 668
568 PUTBACK; 669 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 670 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 671 SPAGAIN;
672
673 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
674 SvREFCNT_dec (sv_result);
675 else
676 sv_result_cache = sv_result;
571 677
572 FREETMPS; 678 FREETMPS;
573 LEAVE; 679 LEAVE;
680
681 PUTBACK;
574 } 682 }
575 683
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); 684 return !!SvTRUE (ERRSV);
591} 685}
592 686
687static void
593static void req_destroy (aio_req req) 688req_destroy (aio_req req)
594{ 689{
595 if (req->self) 690 if (req->self)
596 { 691 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 692 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 693 SvREFCNT_dec (req->self);
599 } 694 }
600 695
601 SvREFCNT_dec (req->sv1); 696 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 697 SvREFCNT_dec (req->sv2);
698 SvREFCNT_dec (req->sv3);
699 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 700 SvREFCNT_dec (req->callback);
604 701
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 702 free (req);
609} 703}
610 704
705static void
611static void req_cancel_subs (aio_req grp) 706req_cancel_subs (aio_req grp)
612{ 707{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 708 if (grp->type != EIO_GROUP)
616 return; 709 return;
617 710
618 SvREFCNT_dec (grp->sv2); 711 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 712 grp->sv2 = 0;
620 713
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 714 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 715}
624 716
625static void req_cancel (aio_req req) 717static void ecb_cold
718create_respipe (void)
626{ 719{
627 req->flags |= FLAG_CANCELLED; 720 if (s_epipe_renew (&respipe))
628 721 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 722}
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
637 723
638static void 724static void
639create_respipe () 725poll_wait (void)
640{ 726{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe))
650#endif
651 croak ("unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674}
675
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait ()
772{
773 fd_set rfd;
774
775 while (nreqs) 727 while (eio_nreqs ())
776 { 728 {
777 int size; 729 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 730
731 X_LOCK (reslock);
779 size = res_queue.size; 732 size = res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 733 X_UNLOCK (reslock);
781 734
782 if (size) 735 if (size)
783 return; 736 return;
784 737
785 maybe_start_thread (); 738 etp_maybe_start_thread ();
786 739
787 FD_ZERO (&rfd); 740 s_epipe_wait (&respipe);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
791 } 741 }
792} 742}
793 743
794static int poll_cb () 744static int
745poll_cb (void)
795{ 746{
796 dSP;
797 int count = 0;
798 int maxreqs = max_poll_reqs;
799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
807
808 for (;;) 747 for (;;)
809 { 748 {
810 for (;;) 749 int res = eio_poll ();
750
751 if (res > 0)
752 croak (0);
753
754 if (!max_outstanding || max_outstanding > eio_nreqs ())
755 return res;
756
757 poll_wait ();
758 }
759}
760
761static void ecb_cold
762reinit (void)
763{
764 create_respipe ();
765
766 if (eio_init (want_poll, done_poll) < 0)
767 croak ("IO::AIO: unable to initialise eio library");
768}
769
770/*****************************************************************************/
771
772#if !_POSIX_MAPPED_FILES
773# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
774# define munmap(addr,length) (errno = ENOSYS, -1)
775#endif
776
777#if !_POSIX_MEMORY_PROTECTION
778# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
779# define PROT_NONE 0
780# define PROT_WRITE 0
781# define MAP_PRIVATE 0
782# define MAP_SHARED 0
783# define MAP_FIXED 0
784#endif
785
786#define MMAP_MAGIC PERL_MAGIC_ext
787
788static int ecb_cold
789mmap_free (pTHX_ SV *sv, MAGIC *mg)
790{
791 int old_errno = errno;
792 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
793 errno = old_errno;
794
795 mg->mg_obj = 0; /* just in case */
796
797 SvREADONLY_off (sv);
798
799 if (SvPVX (sv) != mg->mg_ptr)
800 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
801
802 SvCUR_set (sv, 0);
803 SvPVX (sv) = 0;
804 SvOK_off (sv);
805
806 return 0;
807}
808
809static MGVTBL mmap_vtbl = {
810 0, 0, 0, 0, mmap_free
811};
812
813/*****************************************************************************/
814
815static SV *
816get_cb (SV *cb_sv)
817{
818 SvGETMAGIC (cb_sv);
819 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
820}
821
822static aio_req ecb_noinline
823dreq (SV *callback)
824{
825 SV *cb_cv;
826 aio_req req;
827 int req_pri = next_pri;
828 next_pri = EIO_PRI_DEFAULT;
829
830 cb_cv = get_cb (callback);
831
832 req = calloc (sizeof (*req), 1);
833 if (!req)
834 croak ("out of memory during eio_req allocation");
835
836 req->callback = SvREFCNT_inc (cb_cv);
837 req->pri = req_pri;
838
839 return req;
840}
841
842#define dREQ \
843 aio_req req = dreq (callback); \
844
845#define REQ_SEND \
846 PUTBACK; \
847 req_submit (req); \
848 SPAGAIN; \
849 \
850 if (GIMME_V != G_VOID) \
851 XPUSHs (req_sv (req, aio_req_stash));
852
853ecb_inline void
854req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
855{
856 if (expect_false (SvROK (path)))
857 {
858 SV *rv = SvRV (path);
859 SV *wdob;
860
861 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
811 { 862 {
812 maybe_start_thread (); 863 path = AvARRAY (rv)[1];
864 wdob = AvARRAY (rv)[0];
813 865
814 X_LOCK (reslock); 866 if (SvOK (wdob))
815 req = reqq_shift (&res_queue);
816
817 if (req)
818 { 867 {
819 --npending; 868 *wd = SvAIO_WD (wdob);
820 869 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
821 if (!res_queue.size)
822 {
823 /* read any signals sent by the worker threads */
824 char buf [4];
825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 } 870 }
842 else 871 else
843 { 872 *wd = EIO_INVALID_WD;
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0);
849 }
850
851 count++;
852 }
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
865 }
866 } 873 }
874 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
875 {
876 *wd = (aio_wd)(long)SvIVX (rv);
877 *wdsv = SvREFCNT_inc_NN (rv);
878 *ptr = ".";
879 return; /* path set to "." */
880 }
881 else
882 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
883 }
867 884
868 if (nreqs <= max_outstanding) 885 *pathsv = newSVsv (path);
886 *ptr = SvPVbyte_nolen (*pathsv);
887}
888
889static void ecb_noinline
890req_set_path1 (aio_req req, SV *path)
891{
892 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
893}
894
895static void ecb_noinline
896req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
897{
898 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
899
900 switch (SvTYPE (rv))
901 {
902 case SVt_PVIO:
903 case SVt_PVLV:
904 case SVt_PVGV:
905 req->type = type_fh;
906 req->sv1 = newSVsv (fh_or_path);
907 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
869 break; 908 break;
870 909
871 poll_wait (); 910 default:
872 911 req->type = type_path;
873 ++maxreqs; 912 req_set_path1 (req, fh_or_path);
913 break;
874 } 914 }
875
876 unblock_sig ();
877 return count;
878} 915}
879 916
880/*****************************************************************************/ 917XS(boot_IO__AIO) ecb_cold;
881/* work around various missing functions */
882 918
883#if !HAVE_PREADWRITE
884# define pread aio_pread
885# define pwrite aio_pwrite
886
887/*
888 * make our pread/pwrite safe against themselves, but not against
889 * normal read/write by using a mutex. slows down execution a lot,
890 * but that's your problem, not mine.
891 */
892static mutex_t preadwritelock = X_MUTEX_INIT;
893
894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
895{
896 ssize_t res;
897 off_t ooffset;
898
899 X_LOCK (preadwritelock);
900 ooffset = lseek (fd, 0, SEEK_CUR);
901 lseek (fd, offset, SEEK_SET);
902 res = read (fd, buf, count);
903 lseek (fd, ooffset, SEEK_SET);
904 X_UNLOCK (preadwritelock);
905
906 return res;
907}
908
909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
910{
911 ssize_t res;
912 off_t ooffset;
913
914 X_LOCK (preadwritelock);
915 ooffset = lseek (fd, 0, SEEK_CUR);
916 lseek (fd, offset, SEEK_SET);
917 res = write (fd, buf, count);
918 lseek (fd, offset, SEEK_SET);
919 X_UNLOCK (preadwritelock);
920
921 return res;
922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
951#endif
952
953#if !HAVE_FDATASYNC
954# define fdatasync fsync
955#endif
956
957#if !HAVE_READAHEAD
958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
959
960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
961{
962 size_t todo = count;
963 dBUF;
964
965 while (todo > 0)
966 {
967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
968
969 pread (fd, aio_buf, len, offset);
970 offset += len;
971 todo -= len;
972 }
973
974 errno = 0;
975 return count;
976}
977
978#endif
979
980#if !HAVE_READDIR_R
981# define readdir_r aio_readdir_r
982
983static mutex_t readdirlock = X_MUTEX_INIT;
984
985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
986{
987 X_DIRENT *e;
988 int errorno;
989
990 X_LOCK (readdirlock);
991
992 e = readdir (dirp);
993 errorno = errno;
994
995 if (e)
996 {
997 *res = ent;
998 strcpy (ent->d_name, e->d_name);
999 }
1000 else
1001 *res = 0;
1002
1003 X_UNLOCK (readdirlock);
1004
1005 errno = errorno;
1006 return e ? 0 : -1;
1007}
1008#endif
1009
1010/* sendfile always needs emulation */
1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1012{
1013 ssize_t res;
1014
1015 if (!count)
1016 return 0;
1017
1018#if HAVE_SENDFILE
1019# if __linux
1020 res = sendfile (ofd, ifd, &offset, count);
1021
1022# elif __freebsd
1023 /*
1024 * Of course, the freebsd sendfile is a dire hack with no thoughts
1025 * wasted on making it similar to other I/O functions.
1026 */
1027 {
1028 off_t sbytes;
1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1030
1031 if (res < 0 && sbytes)
1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1033 res = sbytes;
1034 }
1035
1036# elif __hpux
1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
1038
1039# elif __solaris
1040 {
1041 struct sendfilevec vec;
1042 size_t sbytes;
1043
1044 vec.sfv_fd = ifd;
1045 vec.sfv_flag = 0;
1046 vec.sfv_off = offset;
1047 vec.sfv_len = count;
1048
1049 res = sendfilev (ofd, &vec, 1, &sbytes);
1050
1051 if (res < 0 && sbytes)
1052 res = sbytes;
1053 }
1054
1055# endif
1056#else
1057 res = -1;
1058 errno = ENOSYS;
1059#endif
1060
1061 if (res < 0
1062 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1063#if __solaris
1064 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1065#endif
1066 )
1067 )
1068 {
1069 /* emulate sendfile. this is a major pain in the ass */
1070 dBUF;
1071
1072 res = 0;
1073
1074 while (count)
1075 {
1076 ssize_t cnt;
1077
1078 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1079
1080 if (cnt <= 0)
1081 {
1082 if (cnt && !res) res = -1;
1083 break;
1084 }
1085
1086 cnt = write (ofd, aio_buf, cnt);
1087
1088 if (cnt <= 0)
1089 {
1090 if (cnt && !res) res = -1;
1091 break;
1092 }
1093
1094 offset += cnt;
1095 res += cnt;
1096 count -= cnt;
1097 }
1098 }
1099
1100 return res;
1101}
1102
1103/* read a full directory */
1104static void scandir_ (aio_req req, worker *self)
1105{
1106 DIR *dirp;
1107 union
1108 {
1109 X_DIRENT d;
1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1111 } *u;
1112 X_DIRENT *entp;
1113 char *name, *names;
1114 int memlen = 4096;
1115 int memofs = 0;
1116 int res = 0;
1117
1118 X_LOCK (wrklock);
1119 self->dirp = dirp = opendir (req->ptr1);
1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
1124
1125 if (dirp && u && names)
1126 for (;;)
1127 {
1128 errno = 0;
1129 readdir_r (dirp, &u->d, &entp);
1130
1131 if (!entp)
1132 break;
1133
1134 name = entp->d_name;
1135
1136 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1137 {
1138 int len = strlen (name) + 1;
1139
1140 res++;
1141
1142 while (memofs + len > memlen)
1143 {
1144 memlen *= 2;
1145 X_LOCK (wrklock);
1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
1149 if (!names)
1150 break;
1151 }
1152
1153 memcpy (names + memofs, name, len);
1154 memofs += len;
1155 }
1156 }
1157
1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162}
1163
1164/*****************************************************************************/
1165
1166X_THREAD_PROC (aio_proc)
1167{
1168 {//D
1169 aio_req req;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
1177 {
1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1179
1180 X_LOCK (reqlock);
1181
1182 for (;;)
1183 {
1184 self->req = req = reqq_shift (&req_queue);
1185
1186 if (req)
1187 break;
1188
1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
1210 }
1211
1212 --nready;
1213
1214 X_UNLOCK (reqlock);
1215
1216 errno = 0; /* strictly unnecessary */
1217
1218 if (!(req->flags & FLAG_CANCELLED))
1219 switch (req->type)
1220 {
1221 case REQ_READ: req->result = req->offs >= 0
1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1227
1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1230
1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1243 case REQ_CLOSE: req->result = close (req->int1); break;
1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1252
1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1255 case REQ_READDIR: scandir_ (req, self); break;
1256
1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1261 {
1262 struct timeval tv;
1263
1264 tv.tv_sec = req->nv1;
1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1266
1267 req->result = select (0, 0, 0, 0, &tv);
1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
1295
1296 case REQ_GROUP:
1297 case REQ_NOP:
1298 break;
1299
1300 case REQ_QUIT:
1301 goto quit;
1302
1303 default:
1304 req->result = -1;
1305 break;
1306 }
1307
1308 req->errorno = errno;
1309
1310 X_LOCK (reslock);
1311
1312 ++npending;
1313
1314 if (!reqq_push (&res_queue, req))
1315 {
1316 /* write a dummy byte to the pipe so fh becomes ready */
1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1318
1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
1328 }
1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
1334
1335 return 0;
1336 }//D
1337}
1338
1339/*****************************************************************************/
1340
1341static void atfork_prepare (void)
1342{
1343 X_LOCK (wrklock);
1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
1346#if !HAVE_PREADWRITE
1347 X_LOCK (preadwritelock);
1348#endif
1349#if !HAVE_READDIR_R
1350 X_LOCK (readdirlock);
1351#endif
1352}
1353
1354static void atfork_parent (void)
1355{
1356#if !HAVE_READDIR_R
1357 X_UNLOCK (readdirlock);
1358#endif
1359#if !HAVE_PREADWRITE
1360 X_UNLOCK (preadwritelock);
1361#endif
1362 X_UNLOCK (reslock);
1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
1365}
1366
1367static void atfork_child (void)
1368{
1369 aio_req prv;
1370
1371 while (prv = reqq_shift (&req_queue))
1372 req_destroy (prv);
1373
1374 while (prv = reqq_shift (&res_queue))
1375 req_destroy (prv);
1376
1377 while (wrk_first.next != &wrk_first)
1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
1394 create_respipe ();
1395
1396 atfork_parent ();
1397}
1398
1399#define dREQ \
1400 aio_req req; \
1401 int req_pri = next_pri; \
1402 next_pri = DEFAULT_PRI + PRI_BIAS; \
1403 \
1404 if (SvOK (callback) && !SvROK (callback)) \
1405 croak ("callback must be undef or of reference type"); \
1406 \
1407 Newz (0, req, 1, aio_cb); \
1408 if (!req) \
1409 croak ("out of memory during aio_req allocation"); \
1410 \
1411 req->callback = newSVsv (callback); \
1412 req->pri = req_pri
1413
1414#define REQ_SEND \
1415 req_send (req); \
1416 \
1417 if (GIMME_V != G_VOID) \
1418 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1419
1420MODULE = IO::AIO PACKAGE = IO::AIO 919MODULE = IO::AIO PACKAGE = IO::AIO
1421 920
1422PROTOTYPES: ENABLE 921PROTOTYPES: ENABLE
1423 922
1424BOOT: 923BOOT:
1425{ 924{
925 static const struct {
926 const char *name;
927 IV iv;
928 } *civ, const_iv[] = {
929# define const_niv(name, value) { # name, (IV) value },
930# define const_iv(name) { # name, (IV) name },
931# define const_eio(name) { # name, (IV) EIO_ ## name },
932 const_iv (EXDEV)
933 const_iv (ENOSYS)
934 const_iv (O_RDONLY)
935 const_iv (O_WRONLY)
936 const_iv (O_RDWR)
937 const_iv (O_CREAT)
938 const_iv (O_TRUNC)
939 const_iv (O_EXCL)
940 const_iv (O_APPEND)
941
942 const_iv (O_ASYNC)
943 const_iv (O_DIRECT)
944 const_iv (O_NOATIME)
945
946 const_iv (O_CLOEXEC)
947 const_iv (O_NOCTTY)
948 const_iv (O_NOFOLLOW)
949 const_iv (O_NONBLOCK)
950 const_iv (O_EXEC)
951 const_iv (O_SEARCH)
952 const_iv (O_DIRECTORY)
953 const_iv (O_DSYNC)
954 const_iv (O_RSYNC)
955 const_iv (O_SYNC)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
969 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
970 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
971 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
972 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
973 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
974
975 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
976 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
977 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
978 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
979 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
980
981 const_iv (ST_RDONLY)
982 const_iv (ST_NOSUID)
983 const_iv (ST_NODEV)
984 const_iv (ST_NOEXEC)
985 const_iv (ST_SYNCHRONOUS)
986 const_iv (ST_MANDLOCK)
987 const_iv (ST_WRITE)
988 const_iv (ST_APPEND)
989 const_iv (ST_IMMUTABLE)
990 const_iv (ST_NOATIME)
991 const_iv (ST_NODIRATIME)
992 const_iv (ST_RELATIME)
993
994 const_iv (PROT_NONE)
995 const_iv (PROT_EXEC)
996 const_iv (PROT_READ)
997 const_iv (PROT_WRITE)
998
999 /*const_iv (MAP_FIXED)*/
1000 const_iv (MAP_PRIVATE)
1001 const_iv (MAP_SHARED)
1002 const_iv (MAP_ANONYMOUS)
1003
1004 /* linuxish */
1005 const_iv (MAP_HUGETLB)
1006 const_iv (MAP_LOCKED)
1007 const_iv (MAP_NORESERVE)
1008 const_iv (MAP_POPULATE)
1009 const_iv (MAP_NONBLOCK)
1010
1011 const_eio (SEEK_SET)
1012 const_eio (SEEK_CUR)
1013 const_eio (SEEK_END)
1014
1015 const_eio (MCL_FUTURE)
1016 const_eio (MCL_CURRENT)
1017
1018 const_eio (MS_ASYNC)
1019 const_eio (MS_INVALIDATE)
1020 const_eio (MS_SYNC)
1021
1022 const_eio (MT_MODIFY)
1023
1024 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1025 const_eio (SYNC_FILE_RANGE_WRITE)
1026 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1027
1028 const_eio (FALLOC_FL_KEEP_SIZE)
1029
1030 const_eio (READDIR_DENTS)
1031 const_eio (READDIR_DIRS_FIRST)
1032 const_eio (READDIR_STAT_ORDER)
1033 const_eio (READDIR_FOUND_UNKNOWN)
1034
1035 const_eio (DT_UNKNOWN)
1036 const_eio (DT_FIFO)
1037 const_eio (DT_CHR)
1038 const_eio (DT_DIR)
1039 const_eio (DT_BLK)
1040 const_eio (DT_REG)
1041 const_eio (DT_LNK)
1042 const_eio (DT_SOCK)
1043 const_eio (DT_WHT)
1044 };
1045
1426 HV *stash = gv_stashpv ("IO::AIO", 1); 1046 aio_stash = gv_stashpv ("IO::AIO" , 1);
1047 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1048 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1049 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1427 1050
1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1051 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1052 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440 1053
1441 X_COND_CHECK (reqwait); 1054 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446 1055
1447 create_respipe (); 1056 reinit ();
1448
1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1450} 1057}
1451 1058
1452void 1059void
1060reinit ()
1061 PROTOTYPE:
1062
1063void
1453max_poll_reqs (int nreqs) 1064max_poll_reqs (unsigned int nreqs)
1454 PROTOTYPE: $ 1065 PROTOTYPE: $
1455 CODE: 1066 CODE:
1456 max_poll_reqs = nreqs; 1067 eio_set_max_poll_reqs (nreqs);
1457 1068
1458void 1069void
1459max_poll_time (double nseconds) 1070max_poll_time (double nseconds)
1460 PROTOTYPE: $ 1071 PROTOTYPE: $
1461 CODE: 1072 CODE:
1462 max_poll_time = nseconds * AIO_TICKS; 1073 eio_set_max_poll_time (nseconds);
1463 1074
1464void 1075void
1465min_parallel (int nthreads) 1076min_parallel (unsigned int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $ 1077 PROTOTYPE: $
1475 CODE: 1078 CODE:
1476 set_max_idle (nthreads); 1079 eio_set_min_parallel (nthreads);
1477 1080
1478int 1081void
1479max_outstanding (int maxreqs) 1082max_parallel (unsigned int nthreads)
1480 PROTOTYPE: $ 1083 PROTOTYPE: $
1481 CODE: 1084 CODE:
1482 RETVAL = max_outstanding; 1085 eio_set_max_parallel (nthreads);
1086
1087void
1088max_idle (unsigned int nthreads)
1089 PROTOTYPE: $
1090 CODE:
1091 eio_set_max_idle (nthreads);
1092
1093void
1094idle_timeout (unsigned int seconds)
1095 PROTOTYPE: $
1096 CODE:
1097 eio_set_idle_timeout (seconds);
1098
1099void
1100max_outstanding (unsigned int maxreqs)
1101 PROTOTYPE: $
1102 CODE:
1483 max_outstanding = maxreqs; 1103 max_outstanding = maxreqs;
1484 OUTPUT: 1104
1485 RETVAL 1105void
1106aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1107 PPCODE:
1108{
1109 dREQ;
1110
1111 req->type = EIO_WD_OPEN;
1112 req_set_path1 (req, pathname);
1113
1114 REQ_SEND;
1115}
1486 1116
1487void 1117void
1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1118aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $$$;$
1490 PPCODE: 1119 PPCODE:
1491{ 1120{
1492 dREQ; 1121 dREQ;
1493 1122
1494 req->type = REQ_OPEN; 1123 req->type = EIO_OPEN;
1495 req->sv1 = newSVsv (pathname); 1124 req_set_path1 (req, pathname);
1496 req->ptr1 = SvPVbyte_nolen (req->sv1);
1497 req->int1 = flags; 1125 req->int1 = flags;
1498 req->mode = mode; 1126 req->int2 = mode;
1499 1127
1500 REQ_SEND; 1128 REQ_SEND;
1501} 1129}
1502 1130
1503void 1131void
1504aio_close (SV *fh, SV *callback=&PL_sv_undef) 1132aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $;$
1506 ALIAS: 1133 ALIAS:
1507 aio_close = REQ_CLOSE
1508 aio_fsync = REQ_FSYNC 1134 aio_fsync = EIO_FSYNC
1509 aio_fdatasync = REQ_FDATASYNC 1135 aio_fdatasync = EIO_FDATASYNC
1136 aio_syncfs = EIO_SYNCFS
1510 PPCODE: 1137 PPCODE:
1511{ 1138{
1139 int fd = s_fileno_croak (fh, 0);
1512 dREQ; 1140 dREQ;
1513 1141
1514 req->type = ix; 1142 req->type = ix;
1515 req->sv1 = newSVsv (fh); 1143 req->sv1 = newSVsv (fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1144 req->int1 = fd;
1517 1145
1518 REQ_SEND (req); 1146 REQ_SEND;
1147}
1148
1149void
1150aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1151 PPCODE:
1152{
1153 int fd = s_fileno_croak (fh, 0);
1154 dREQ;
1155
1156 req->type = EIO_SYNC_FILE_RANGE;
1157 req->sv1 = newSVsv (fh);
1158 req->int1 = fd;
1159 req->offs = offset;
1160 req->size = nbytes;
1161 req->int2 = flags;
1162
1163 REQ_SEND;
1164}
1165
1166void
1167aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1168 PPCODE:
1169{
1170 int fd = s_fileno_croak (fh, 0);
1171 dREQ;
1172
1173 req->type = EIO_FALLOCATE;
1174 req->sv1 = newSVsv (fh);
1175 req->int1 = fd;
1176 req->int2 = mode;
1177 req->offs = offset;
1178 req->size = len;
1179
1180 REQ_SEND;
1181}
1182
1183void
1184aio_close (SV *fh, SV *callback=&PL_sv_undef)
1185 PPCODE:
1186{
1187 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1188 int fd = s_fileno_croak (fh, 0);
1189 dREQ;
1190
1191 if (expect_false (close_fd < 0))
1192 {
1193 int pipefd [2];
1194
1195 if (
1196#ifdef _WIN32
1197 _pipe (pipefd, 1, _O_BINARY) < 0
1198#else
1199 pipe (pipefd) < 0
1200 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1201#endif
1202 || close (pipefd [1]) < 0
1203 )
1204 abort (); /*D*/
1205
1206 close_fd = pipefd [0];
1207 }
1208
1209 req->type = EIO_DUP2;
1210 req->int1 = close_fd;
1211 req->sv2 = newSVsv (fh);
1212 req->int2 = fd;
1213
1214 REQ_SEND;
1215}
1216
1217void
1218aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1219 PPCODE:
1220{
1221 STRLEN svlen;
1222 int fd = s_fileno_croak (fh, 0);
1223 dREQ;
1224
1225 req->type = EIO_SEEK;
1226 req->sv1 = newSVsv (fh);
1227 req->int1 = fd;
1228 req->offs = SvVAL64 (offset);
1229 req->int2 = whence;
1230
1231 REQ_SEND;
1519} 1232}
1520 1233
1521void 1234void
1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1235aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1523 ALIAS: 1236 ALIAS:
1524 aio_read = REQ_READ 1237 aio_read = EIO_READ
1525 aio_write = REQ_WRITE 1238 aio_write = EIO_WRITE
1526 PROTOTYPE: $$$$$;$
1527 PPCODE: 1239 PPCODE:
1528{ 1240{
1529 STRLEN svlen; 1241 STRLEN svlen;
1242 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1530 char *svptr = SvPVbyte (data, svlen); 1243 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length); 1244 UV len = SvUV (length);
1532 1245
1533 SvUPGRADE (data, SVt_PV);
1534 SvPOK_on (data);
1535
1536 if (dataoffset < 0) 1246 if (dataoffset < 0)
1537 dataoffset += svlen; 1247 dataoffset += svlen;
1538 1248
1539 if (dataoffset < 0 || dataoffset > svlen) 1249 if (dataoffset < 0 || dataoffset > svlen)
1540 croak ("dataoffset outside of data scalar"); 1250 croak ("dataoffset outside of data scalar");
1541 1251
1542 if (ix == REQ_WRITE) 1252 if (ix == EIO_WRITE)
1543 { 1253 {
1544 /* write: check length and adjust. */ 1254 /* write: check length and adjust. */
1545 if (!SvOK (length) || len + dataoffset > svlen) 1255 if (!SvOK (length) || len + dataoffset > svlen)
1546 len = svlen - dataoffset; 1256 len = svlen - dataoffset;
1547 } 1257 }
1548 else 1258 else
1549 { 1259 {
1550 /* read: grow scalar as necessary */ 1260 /* read: check type and grow scalar as necessary */
1261 SvUPGRADE (data, SVt_PV);
1551 svptr = SvGROW (data, len + dataoffset + 1); 1262 svptr = SvGROW (data, len + dataoffset + 1);
1552 } 1263 }
1553 1264
1554 if (len < 0)
1555 croak ("length must not be negative");
1556
1557 { 1265 {
1558 dREQ; 1266 dREQ;
1559 1267
1560 req->type = ix; 1268 req->type = ix;
1561 req->sv1 = newSVsv (fh); 1269 req->sv1 = newSVsv (fh);
1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1270 req->int1 = fd;
1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1271 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1565 req->size = len; 1272 req->size = len;
1566 req->sv2 = SvREFCNT_inc (data); 1273 req->sv2 = SvREFCNT_inc (data);
1567 req->ptr1 = (char *)svptr + dataoffset; 1274 req->ptr2 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset; 1275 req->stroffset = dataoffset;
1569 1276
1570 if (!SvREADONLY (data)) 1277 if (!SvREADONLY (data))
1571 { 1278 {
1572 SvREADONLY_on (data); 1279 SvREADONLY_on (data);
… …
1576 REQ_SEND; 1283 REQ_SEND;
1577 } 1284 }
1578} 1285}
1579 1286
1580void 1287void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1288aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1582 PROTOTYPE: $$;$ 1289 ALIAS:
1290 aio_readlink = EIO_READLINK
1291 aio_realpath = EIO_REALPATH
1583 PPCODE: 1292 PPCODE:
1584{ 1293{
1585 SV *data;
1586 dREQ; 1294 dREQ;
1587 1295
1588 data = newSV (NAME_MAX);
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK; 1296 req->type = ix;
1592 req->sv1 = newSVsv (path); 1297 req_set_path1 (req, pathname);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596 1298
1597 REQ_SEND; 1299 REQ_SEND;
1598} 1300}
1599 1301
1600void 1302void
1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1303aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1602 PROTOTYPE: $$$$;$
1603 PPCODE: 1304 PPCODE:
1604{ 1305{
1306 int ifd = s_fileno_croak (in_fh , 0);
1307 int ofd = s_fileno_croak (out_fh, 1);
1605 dREQ; 1308 dREQ;
1606 1309
1607 req->type = REQ_SENDFILE; 1310 req->type = EIO_SENDFILE;
1608 req->sv1 = newSVsv (out_fh); 1311 req->sv1 = newSVsv (out_fh);
1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1312 req->int1 = ofd;
1610 req->sv2 = newSVsv (in_fh); 1313 req->sv2 = newSVsv (in_fh);
1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1314 req->int2 = ifd;
1612 req->offs = SvVAL64 (in_offset); 1315 req->offs = in_offset;
1613 req->size = length; 1316 req->size = length;
1614 1317
1615 REQ_SEND; 1318 REQ_SEND;
1616} 1319}
1617 1320
1618void 1321void
1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1322aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1620 PROTOTYPE: $$$;$
1621 PPCODE: 1323 PPCODE:
1622{ 1324{
1325 int fd = s_fileno_croak (fh, 0);
1623 dREQ; 1326 dREQ;
1624 1327
1625 req->type = REQ_READAHEAD; 1328 req->type = EIO_READAHEAD;
1626 req->sv1 = newSVsv (fh); 1329 req->sv1 = newSVsv (fh);
1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1330 req->int1 = fd;
1628 req->offs = SvVAL64 (offset); 1331 req->offs = offset;
1629 req->size = length; 1332 req->size = length;
1630 1333
1631 REQ_SEND; 1334 REQ_SEND;
1632} 1335}
1633 1336
1634void 1337void
1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1338aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1636 ALIAS: 1339 ALIAS:
1637 aio_stat = REQ_STAT 1340 aio_stat = EIO_STAT
1638 aio_lstat = REQ_LSTAT 1341 aio_lstat = EIO_LSTAT
1342 aio_statvfs = EIO_STATVFS
1639 PPCODE: 1343 PPCODE:
1640{ 1344{
1641 dREQ; 1345 dREQ;
1642 1346
1643 req->ptr2 = malloc (sizeof (Stat_t)); 1347 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1644 if (!req->ptr2)
1645 {
1646 req_destroy (req);
1647 croak ("out of memory during aio_stat statdata allocation");
1648 }
1649
1650 req->flags |= FLAG_PTR2_FREE;
1651 req->sv1 = newSVsv (fh_or_path);
1652
1653 if (SvPOK (fh_or_path))
1654 {
1655 req->type = ix;
1656 req->ptr1 = SvPVbyte_nolen (req->sv1);
1657 }
1658 else
1659 {
1660 req->type = REQ_FSTAT;
1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1662 }
1663 1348
1664 REQ_SEND; 1349 REQ_SEND;
1665} 1350}
1351
1352UV
1353major (UV dev)
1354 ALIAS:
1355 minor = 1
1356 CODE:
1357 RETVAL = ix ? major (dev) : minor (dev);
1358 OUTPUT:
1359 RETVAL
1360
1361UV
1362makedev (UV maj, UV min)
1363 CODE:
1364 RETVAL = makedev (maj, min);
1365 OUTPUT:
1366 RETVAL
1666 1367
1667void 1368void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1369aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1669 PPCODE: 1370 PPCODE:
1670{ 1371{
1671 dREQ; 1372 dREQ;
1672 1373
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1374 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1375 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path); 1376 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1676
1677 if (SvPOK (fh_or_path))
1678 {
1679 req->type = REQ_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 }
1682 else
1683 {
1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687 1377
1688 REQ_SEND; 1378 REQ_SEND;
1689} 1379}
1690 1380
1691void 1381void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1382aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1693 PPCODE: 1383 PPCODE:
1694{ 1384{
1695 dREQ; 1385 dREQ;
1696 1386
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1387 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699 1388 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 }
1710 1389
1711 REQ_SEND; 1390 REQ_SEND;
1712} 1391}
1713 1392
1714void 1393void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1394aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1716 PPCODE: 1395 PPCODE:
1717{ 1396{
1718 dREQ; 1397 dREQ;
1719 1398
1720 req->mode = mode; 1399 req->int2 = mode;
1721 req->sv1 = newSVsv (fh_or_path); 1400 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1722
1723 if (SvPOK (fh_or_path))
1724 {
1725 req->type = REQ_CHMOD;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 }
1728 else
1729 {
1730 req->type = REQ_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 }
1733 1401
1734 REQ_SEND; 1402 REQ_SEND;
1735} 1403}
1736 1404
1737void 1405void
… …
1740{ 1408{
1741 dREQ; 1409 dREQ;
1742 1410
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1411 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1412 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path); 1413 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1746 1414
1747 if (SvPOK (fh_or_path)) 1415 REQ_SEND;
1748 { 1416}
1749 req->type = REQ_CHOWN; 1417
1750 req->ptr1 = SvPVbyte_nolen (req->sv1); 1418void
1751 } 1419aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1752 else 1420 PPCODE:
1753 { 1421{
1754 req->type = REQ_FCHOWN; 1422 dREQ;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1423
1756 } 1424 req->type = EIO_READDIR;
1425 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1426
1427 if (flags & EIO_READDIR_DENTS)
1428 req->int1 |= EIO_READDIR_CUSTOM2;
1429
1430 req_set_path1 (req, pathname);
1431
1432 REQ_SEND;
1433}
1434
1435void
1436aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1437 PPCODE:
1438{
1439 dREQ;
1440
1441 req->type = EIO_MKDIR;
1442 req->int2 = mode;
1443 req_set_path1 (req, pathname);
1757 1444
1758 REQ_SEND; 1445 REQ_SEND;
1759} 1446}
1760 1447
1761void 1448void
1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1449aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1763 ALIAS: 1450 ALIAS:
1764 aio_unlink = REQ_UNLINK 1451 aio_unlink = EIO_UNLINK
1765 aio_rmdir = REQ_RMDIR 1452 aio_rmdir = EIO_RMDIR
1766 aio_readdir = REQ_READDIR 1453 aio_readdir = EIO_READDIR
1767 PPCODE: 1454 PPCODE:
1768{ 1455{
1769 dREQ; 1456 dREQ;
1770 1457
1771 req->type = ix; 1458 req->type = ix;
1772 req->sv1 = newSVsv (pathname); 1459 req_set_path1 (req, pathname);
1773 req->ptr1 = SvPVbyte_nolen (req->sv1);
1774
1775 REQ_SEND;
1776}
1777
1778void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1783
1784 req->type = REQ_MKDIR;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode;
1788 1460
1789 REQ_SEND; 1461 REQ_SEND;
1790} 1462}
1791 1463
1792void 1464void
1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1465aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1794 ALIAS: 1466 ALIAS:
1795 aio_link = REQ_LINK 1467 aio_link = EIO_LINK
1796 aio_symlink = REQ_SYMLINK 1468 aio_symlink = EIO_SYMLINK
1797 aio_rename = REQ_RENAME 1469 aio_rename = EIO_RENAME
1798 PPCODE: 1470 PPCODE:
1799{ 1471{
1472 eio_wd wd2 = 0;
1800 dREQ; 1473 dREQ;
1801 1474
1802 req->type = ix; 1475 req->type = ix;
1803 req->sv2 = newSVsv (oldpath); 1476 req_set_path1 (req, oldpath);
1804 req->ptr2 = SvPVbyte_nolen (req->sv2); 1477 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1805 req->sv1 = newSVsv (newpath); 1478 req->int3 = (long)wd2;
1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1807 1479
1808 REQ_SEND; 1480 REQ_SEND;
1809} 1481}
1810 1482
1811void 1483void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1484aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1813 PPCODE: 1485 PPCODE:
1814{ 1486{
1815 dREQ; 1487 dREQ;
1816 1488
1817 req->type = REQ_MKNOD; 1489 req->type = EIO_MKNOD;
1818 req->sv1 = newSVsv (pathname);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1);
1820 req->mode = (mode_t)mode; 1490 req->int2 = (mode_t)mode;
1821 req->offs = dev; 1491 req->offs = dev;
1492 req_set_path1 (req, pathname);
1822 1493
1823 REQ_SEND; 1494 REQ_SEND;
1824} 1495}
1825 1496
1826void 1497void
1498aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1499 ALIAS:
1500 aio_mtouch = EIO_MTOUCH
1501 aio_msync = EIO_MSYNC
1502 PPCODE:
1503{
1504 STRLEN svlen;
1505 char *svptr = SvPVbyte (data, svlen);
1506 UV len = SvUV (length);
1507
1508 if (offset < 0)
1509 offset += svlen;
1510
1511 if (offset < 0 || offset > svlen)
1512 croak ("offset outside of scalar");
1513
1514 if (!SvOK (length) || len + offset > svlen)
1515 len = svlen - offset;
1516
1517 {
1518 dREQ;
1519
1520 req->type = ix;
1521 req->sv2 = SvREFCNT_inc (data);
1522 req->ptr2 = (char *)svptr + offset;
1523 req->size = len;
1524 req->int1 = flags;
1525
1526 REQ_SEND;
1527 }
1528}
1529
1530void
1531aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1532 PPCODE:
1533{
1534 STRLEN svlen;
1535 char *svptr = SvPVbyte (data, svlen);
1536 UV len = SvUV (length);
1537
1538 if (offset < 0)
1539 offset += svlen;
1540
1541 if (offset < 0 || offset > svlen)
1542 croak ("offset outside of scalar");
1543
1544 if (!SvOK (length) || len + offset > svlen)
1545 len = svlen - offset;
1546
1547 {
1548 dREQ;
1549
1550 req->type = EIO_MLOCK;
1551 req->sv2 = SvREFCNT_inc (data);
1552 req->ptr2 = (char *)svptr + offset;
1553 req->size = len;
1554
1555 REQ_SEND;
1556 }
1557}
1558
1559void
1560aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1561 PPCODE:
1562{
1563 dREQ;
1564
1565 req->type = EIO_MLOCKALL;
1566 req->int1 = flags;
1567
1568 REQ_SEND;
1569}
1570
1571void
1827aio_busy (double delay, SV *callback=&PL_sv_undef) 1572aio_busy (double delay, SV *callback=&PL_sv_undef)
1828 PPCODE: 1573 PPCODE:
1829{ 1574{
1830 dREQ; 1575 dREQ;
1831 1576
1832 req->type = REQ_BUSY; 1577 req->type = EIO_BUSY;
1833 req->nv1 = delay < 0. ? 0. : delay; 1578 req->nv1 = delay < 0. ? 0. : delay;
1834 1579
1835 REQ_SEND; 1580 REQ_SEND;
1836} 1581}
1837 1582
1838void 1583void
1839aio_group (SV *callback=&PL_sv_undef) 1584aio_group (SV *callback=&PL_sv_undef)
1840 PROTOTYPE: ;$
1841 PPCODE: 1585 PPCODE:
1842{ 1586{
1843 dREQ; 1587 dREQ;
1844 1588
1845 req->type = REQ_GROUP; 1589 req->type = EIO_GROUP;
1846 1590
1847 req_send (req); 1591 req_submit (req);
1848 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1592 XPUSHs (req_sv (req, aio_grp_stash));
1849} 1593}
1850 1594
1851void 1595void
1852aio_nop (SV *callback=&PL_sv_undef) 1596aio_nop (SV *callback=&PL_sv_undef)
1597 ALIAS:
1598 aio_nop = EIO_NOP
1599 aio_sync = EIO_SYNC
1853 PPCODE: 1600 PPCODE:
1854{ 1601{
1855 dREQ; 1602 dREQ;
1856 1603
1857 req->type = REQ_NOP; 1604 req->type = ix;
1858 1605
1859 REQ_SEND; 1606 REQ_SEND;
1860} 1607}
1861 1608
1862int 1609int
1863aioreq_pri (int pri = 0) 1610aioreq_pri (int pri = 0)
1864 PROTOTYPE: ;$
1865 CODE: 1611 CODE:
1866 RETVAL = next_pri - PRI_BIAS; 1612 RETVAL = next_pri;
1867 if (items > 0) 1613 if (items > 0)
1868 { 1614 {
1869 if (pri < PRI_MIN) pri = PRI_MIN; 1615 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1870 if (pri > PRI_MAX) pri = PRI_MAX; 1616 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1871 next_pri = pri + PRI_BIAS; 1617 next_pri = pri;
1872 } 1618 }
1873 OUTPUT: 1619 OUTPUT:
1874 RETVAL 1620 RETVAL
1875 1621
1876void 1622void
1877aioreq_nice (int nice = 0) 1623aioreq_nice (int nice = 0)
1878 CODE: 1624 CODE:
1879 nice = next_pri - nice; 1625 nice = next_pri - nice;
1880 if (nice < PRI_MIN) nice = PRI_MIN; 1626 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1881 if (nice > PRI_MAX) nice = PRI_MAX; 1627 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1882 next_pri = nice + PRI_BIAS; 1628 next_pri = nice;
1883 1629
1884void 1630void
1885flush () 1631flush ()
1886 PROTOTYPE:
1887 CODE: 1632 CODE:
1888 while (nreqs) 1633 while (eio_nreqs ())
1889 { 1634 {
1890 poll_wait (); 1635 poll_wait ();
1891 poll_cb (); 1636 poll_cb ();
1892 } 1637 }
1893 1638
1894int 1639int
1895poll() 1640poll ()
1896 PROTOTYPE:
1897 CODE: 1641 CODE:
1898 poll_wait (); 1642 poll_wait ();
1899 RETVAL = poll_cb (); 1643 RETVAL = poll_cb ();
1900 OUTPUT: 1644 OUTPUT:
1901 RETVAL 1645 RETVAL
1902 1646
1903int 1647int
1904poll_fileno() 1648poll_fileno ()
1905 PROTOTYPE:
1906 CODE: 1649 CODE:
1907 RETVAL = respipe [0]; 1650 RETVAL = s_epipe_fd (&respipe);
1908 OUTPUT: 1651 OUTPUT:
1909 RETVAL 1652 RETVAL
1910 1653
1911int 1654int
1912poll_cb(...) 1655poll_cb (...)
1913 PROTOTYPE: 1656 PROTOTYPE:
1914 CODE: 1657 CODE:
1915 RETVAL = poll_cb (); 1658 RETVAL = poll_cb ();
1916 OUTPUT: 1659 OUTPUT:
1917 RETVAL 1660 RETVAL
1918 1661
1919void 1662void
1920poll_wait() 1663poll_wait ()
1921 PROTOTYPE:
1922 CODE: 1664 CODE:
1923 poll_wait (); 1665 poll_wait ();
1924 1666
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1961
1962int 1667int
1963nreqs() 1668nreqs ()
1964 PROTOTYPE:
1965 CODE: 1669 CODE:
1966 RETVAL = nreqs; 1670 RETVAL = eio_nreqs ();
1967 OUTPUT: 1671 OUTPUT:
1968 RETVAL 1672 RETVAL
1969 1673
1970int 1674int
1971nready() 1675nready ()
1972 PROTOTYPE:
1973 CODE: 1676 CODE:
1974 RETVAL = get_nready (); 1677 RETVAL = eio_nready ();
1975 OUTPUT: 1678 OUTPUT:
1976 RETVAL 1679 RETVAL
1977 1680
1978int 1681int
1979npending() 1682npending ()
1980 PROTOTYPE:
1981 CODE: 1683 CODE:
1982 RETVAL = get_npending (); 1684 RETVAL = eio_npending ();
1983 OUTPUT: 1685 OUTPUT:
1984 RETVAL 1686 RETVAL
1985 1687
1986int 1688int
1987nthreads() 1689nthreads ()
1988 PROTOTYPE:
1989 CODE: 1690 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1691 RETVAL = eio_nthreads ();
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT: 1692 OUTPUT:
1994 RETVAL 1693 RETVAL
1995 1694
1695int
1696fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1697 CODE:
1698 RETVAL = posix_fadvise (fh, offset, length, advice);
1699 OUTPUT:
1700 RETVAL
1701
1702IV
1703sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1704 CODE:
1705 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706 OUTPUT:
1707 RETVAL
1708
1709void
1710mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1711 PPCODE:
1712 sv_unmagic (scalar, MMAP_MAGIC);
1713{
1714 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1716 if (addr == (void *)-1)
1717 XSRETURN_NO;
1718
1719 sv_force_normal (scalar);
1720
1721 /* we store the length in mg_obj, as namlen is I32 :/ */
1722 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1723 ->mg_obj = (SV *)length;
1724
1725 SvUPGRADE (scalar, SVt_PV); /* nop... */
1726
1727 if (!(prot & PROT_WRITE))
1728 SvREADONLY_on (scalar);
1729
1730 if (SvLEN (scalar))
1731 Safefree (SvPVX (scalar));
1732
1733 SvPVX (scalar) = (char *)addr;
1734 SvCUR_set (scalar, length);
1735 SvLEN_set (scalar, 0);
1736 SvPOK_only (scalar);
1737
1738 XSRETURN_YES;
1739}
1740
1741void
1742munmap (SV *scalar)
1743 CODE:
1744 sv_unmagic (scalar, MMAP_MAGIC);
1745
1746int
1747madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1748 ALIAS:
1749 mprotect = 1
1750 CODE:
1751{
1752 STRLEN svlen;
1753 void *addr = SvPVbyte (scalar, svlen);
1754 size_t len = SvUV (length);
1755
1756 if (offset < 0)
1757 offset += svlen;
1758
1759 if (offset < 0 || offset > svlen)
1760 croak ("offset outside of scalar");
1761
1762 if (!SvOK (length) || len + offset > svlen)
1763 len = svlen - offset;
1764
1765 addr = (void *)(((intptr_t)addr) + offset);
1766 eio_page_align (&addr, &len);
1767
1768 switch (ix)
1769 {
1770 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1771 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1772 }
1773}
1774 OUTPUT:
1775 RETVAL
1776
1777int
1778munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1779 CODE:
1780{
1781 STRLEN svlen;
1782 void *addr = SvPVbyte (scalar, svlen);
1783 size_t len = SvUV (length);
1784
1785 if (offset < 0)
1786 offset += svlen;
1787
1788 if (offset < 0 || offset > svlen)
1789 croak ("offset outside of scalar");
1790
1791 if (!SvOK (length) || len + offset > svlen)
1792 len = svlen - offset;
1793
1794 addr = (void *)(((intptr_t)addr) + offset);
1795 eio_page_align (&addr, &len);
1796#if _POSIX_MEMLOCK_RANGE
1797 RETVAL = munlock (addr, len);
1798#else
1799 RETVAL = ((errno = ENOSYS), -1);
1800#endif
1801}
1802 OUTPUT:
1803 RETVAL
1804
1805int
1806munlockall ()
1807 CODE:
1808#if _POSIX_MEMLOCK
1809 munlockall ();
1810#else
1811 RETVAL = -1;
1812 errno = ENOSYS;
1813#endif
1814 OUTPUT:
1815 RETVAL
1816
1817void _on_next_submit (SV *cb)
1818 CODE:
1819 SvREFCNT_dec (on_next_submit);
1820 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1821
1996PROTOTYPES: DISABLE 1822PROTOTYPES: DISABLE
1823
1824MODULE = IO::AIO PACKAGE = IO::AIO::WD
1825
1826BOOT:
1827{
1828 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1829 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1830}
1831
1832void
1833DESTROY (SV *self)
1834 CODE:
1835{
1836 aio_wd wd = SvAIO_WD (self);
1837#if HAVE_AT
1838 {
1839 SV *callback = &PL_sv_undef;
1840 dREQ; /* clobbers next_pri :/ */
1841 next_pri = req->pri; /* restore next_pri */
1842 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1843 req->type = EIO_WD_CLOSE;
1844 req->wd = wd;
1845 REQ_SEND;
1846 }
1847#else
1848 eio_wd_close_sync (wd);
1849#endif
1850}
1997 1851
1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1852MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1999 1853
2000void 1854void
2001cancel (aio_req_ornot req) 1855cancel (aio_req_ornot req)
2002 CODE: 1856 CODE:
2003 req_cancel (req); 1857 eio_cancel (req);
2004 1858
2005void 1859void
2006cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1860cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2007 CODE: 1861 PPCODE:
1862{
1863 if (GIMME_V != G_VOID)
1864 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1865
1866 if (items > 1)
1867 {
1868 SV *cb_cv =get_cb (callback);
1869
2008 SvREFCNT_dec (req->callback); 1870 SvREFCNT_dec (req->callback);
2009 req->callback = newSVsv (callback); 1871 req->callback = SvREFCNT_inc (cb_cv);
1872 }
1873}
2010 1874
2011MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1875MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2012 1876
2013void 1877void
2014add (aio_req grp, ...) 1878add (aio_req grp, ...)
2015 PPCODE: 1879 PPCODE:
2016{ 1880{
2017 int i; 1881 int i;
2018 aio_req req;
2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022 1882
2023 if (grp->int1 == 2) 1883 if (grp->int1 == 2)
2024 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1884 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2025 1885
2026 for (i = 1; i < items; ++i ) 1886 for (i = 1; i < items; ++i )
2027 { 1887 {
1888 aio_req req;
1889
2028 if (GIMME_V != G_VOID) 1890 if (GIMME_V != G_VOID)
2029 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1891 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2030 1892
2031 req = SvAIO_REQ (ST (i)); 1893 req = SvAIO_REQ (ST (i));
2032 1894
2033 if (req) 1895 if (req)
2034 { 1896 eio_grp_add (grp, req);
2035 ++grp->size;
2036 req->grp = grp;
2037
2038 req->grp_prev = 0;
2039 req->grp_next = grp->grp_first;
2040
2041 if (grp->grp_first)
2042 grp->grp_first->grp_prev = req;
2043
2044 grp->grp_first = req;
2045 }
2046 } 1897 }
2047} 1898}
2048 1899
2049void 1900void
2050cancel_subs (aio_req_ornot req) 1901cancel_subs (aio_req_ornot req)
… …
2059 AV *av; 1910 AV *av;
2060 1911
2061 grp->errorno = errno; 1912 grp->errorno = errno;
2062 1913
2063 av = newAV (); 1914 av = newAV ();
1915 av_extend (av, items - 1);
2064 1916
2065 for (i = 1; i < items; ++i ) 1917 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i))); 1918 av_push (av, newSVsv (ST (i)));
2067 1919
2068 SvREFCNT_dec (grp->sv1); 1920 SvREFCNT_dec (grp->sv1);
… …
2075 grp->errorno = errorno; 1927 grp->errorno = errorno;
2076 1928
2077void 1929void
2078limit (aio_req grp, int limit) 1930limit (aio_req grp, int limit)
2079 CODE: 1931 CODE:
2080 grp->int2 = limit; 1932 eio_grp_limit (grp, limit);
2081 aio_grp_feed (grp);
2082 1933
2083void 1934void
2084feed (aio_req grp, SV *callback=&PL_sv_undef) 1935feed (aio_req grp, SV *callback=&PL_sv_undef)
2085 CODE: 1936 CODE:
2086{ 1937{
2087 SvREFCNT_dec (grp->sv2); 1938 SvREFCNT_dec (grp->sv2);
2088 grp->sv2 = newSVsv (callback); 1939 grp->sv2 = newSVsv (callback);
1940 grp->feed = aio_grp_feed;
2089 1941
2090 if (grp->int2 <= 0) 1942 if (grp->int2 <= 0)
2091 grp->int2 = 2; 1943 grp->int2 = 2;
2092 1944
2093 aio_grp_feed (grp); 1945 eio_grp_limit (grp, grp->int2);
2094} 1946}
2095 1947

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