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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.107 by root, Wed Oct 3 21:27:51 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
102static HV *stash; 93/*****************************************************************************/
103 94
104#define dBUF \ 95#if __GNUC__ >= 3
105 char *aio_buf; \ 96# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_LOCK (wrklock); \ 97#else
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 98# define expect(expr,value) (expr)
108 X_UNLOCK (wrklock); \ 99#endif
109 if (!aio_buf) \ 100
110 return -1; 101#define expect_false(expr) expect ((expr) != 0, 0)
102#define expect_true(expr) expect ((expr) != 0, 1)
103
104/*****************************************************************************/
111 105
112typedef 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
113 331
114enum { 332enum {
115 REQ_QUIT, 333 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 334};
131 335
132#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134
135typedef struct aio_cb
136{
137 struct aio_cb *volatile next;
138
139 SV *callback;
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146
147 STRLEN stroffset;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152
153 unsigned char flags;
154 unsigned char pri;
155
156 SV *self; /* the perl counterpart of this request, if any */
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
158} aio_cb;
159
160enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164};
165
166typedef aio_cb *aio_req; 336typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 337typedef eio_req *aio_req_ornot;
338typedef eio_wd aio_wd;
168 339
169enum { 340static SV *on_next_submit;
170 PRI_MIN = -4, 341static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 342static int max_outstanding;
172 343
173 DEFAULT_PRI = 0, 344static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 345
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig ()
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return;
200
201 if (!main_sig)
202 return;
203
204 sigemptyset (&ss);
205 sigaddset (&ss, main_sig);
206 pthread_sigmask (SIG_BLOCK, &ss, 0);
207}
208
209void unblock_sig ()
210{
211 sigset_t ss;
212
213 if (--block_sig_level)
214 return;
215
216 if (!main_sig)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 {
249 closedir (wrk->dirp);
250 wrk->dirp = 0;
251 }
252
253 if (wrk->dbuf)
254 {
255 free (wrk->dbuf);
256 wrk->dbuf = 0;
257 }
258}
259
260static void worker_free (worker *wrk)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0;
355
356 --q->size;
357
358 for (pri = NUM_PRI; pri--; )
359 {
360 aio_req req = q->qs[pri];
361
362 if (req)
363 {
364 if (!(q->qs[pri] = req->next))
365 q->qe[pri] = 0;
366
367 return req;
368 }
369 }
370
371 abort ();
372}
373
374static int poll_cb ();
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 346static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 347static void req_cancel (aio_req req);
378 348
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
379/* must be called at most once */ 363/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 364static SV *
365req_sv (aio_req req, HV *stash)
381{ 366{
382 if (!req->self) 367 if (!req->self)
383 { 368 {
384 req->self = (SV *)newHV (); 369 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 370 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 371 }
387 372
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 373 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 374}
390 375
391static 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)
392{ 384{
393 MAGIC *mg; 385 MAGIC *mg;
394 386
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 392 croak ("object of class IO::AIO::REQ expected");
397 393
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 395
400 return mg ? (aio_req)mg->mg_ptr : 0; 396 return mg ? (aio_req)mg->mg_ptr : 0;
401} 397}
402 398
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
403static void aio_grp_feed (aio_req grp) 411aio_grp_feed (aio_req grp)
404{ 412{
405 block_sig (); 413 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 414 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 415 dSP;
414 416
415 ENTER; 417 ENTER;
416 SAVETMPS; 418 SAVETMPS;
417 PUSHMARK (SP); 419 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 420 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 421 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 422 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 423 SPAGAIN;
422 FREETMPS; 424 FREETMPS;
423 LEAVE; 425 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 426 }
434
435 unblock_sig ();
436} 427}
437 428
438static void aio_grp_dec (aio_req grp) 429static void
430req_submit (eio_req *req)
439{ 431{
440 --grp->size; 432 eio_submit (req);
441 433
442 /* call feeder, if applicable */ 434 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 435 {
448 block_sig (); 436 dSP;
437 SV *cb = sv_2mortal (on_next_submit);
449 438
450 if (!req_invoke (grp)) 439 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 440
457 req_destroy (grp); 441 PUSHMARK (SP);
458 unblock_sig (); 442 PUTBACK;
443 call_sv (cb, G_DISCARD | G_EVAL);
459 } 444 }
460} 445}
461 446
447static int
462static int req_invoke (aio_req req) 448req_invoke (eio_req *req)
463{ 449{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 450 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 451 SvREADONLY_off (req->sv2);
468 452
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 453 if (!EIO_CANCELLED (req) && req->callback)
470 { 454 {
455 dSP;
456 static SV *sv_result_cache; /* caches the result integer SV */
457 SV *sv_result;
458
471 ENTER; 459 ENTER;
472 SAVETMPS; 460 SAVETMPS;
473 PUSHMARK (SP); 461 PUSHMARK (SP);
474 EXTEND (SP, 1); 462 EXTEND (SP, 1);
475 463
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
476 switch (req->type) 477 switch (req->type)
477 { 478 {
479 case EIO_WD_OPEN:
480 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
481 break;
482
478 case REQ_READDIR: 483 case EIO_READDIR:
479 { 484 {
480 SV *rv = &PL_sv_undef; 485 SV *rv = &PL_sv_undef;
481 486
482 if (req->result >= 0) 487 if (req->result >= 0)
483 { 488 {
484 int i; 489 int i;
485 char *buf = req->ptr2; 490 char *names = (char *)req->ptr2;
491 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 492 AV *av = newAV ();
487 493
488 av_extend (av, req->result - 1); 494 av_extend (av, req->result - 1);
489 495
490 for (i = 0; i < req->result; ++i) 496 for (i = 0; i < req->result; ++i)
491 { 497 {
492 SV *sv = newSVpv (buf, 0); 498 if (req->int1 & EIO_READDIR_DENTS)
499 {
500 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 501
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
494 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);
495 buf += SvCUR (sv) + 1; 530 names += SvCUR (name) + 1;
531 }
496 } 532 }
497 533
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 534 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 535 }
500 536
501 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))));
502 } 541 }
503 break; 542 break;
504 543
505 case REQ_OPEN: 544 case EIO_OPEN:
506 { 545 {
507 /* convert fd to fh */ 546 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 547 SV *fh = &PL_sv_undef;
509 548
510 if (req->result >= 0) 549 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 551 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 552 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 553 char sym [64];
515 int symlen; 554 int symlen;
516 555
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 556 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 557 gv_init (gv, aio_stash, sym, symlen, 0);
519 558
520 symlen = snprintf ( 559 symlen = snprintf (
521 sym, 560 sym,
522 sizeof (sym), 561 sizeof (sym),
523 "%s&=%d", 562 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 564 (int)req->result
526 ); 565 );
527 566
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 567 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = gv; 568 fh = (SV *)gv;
530 } 569 }
531 570
532 XPUSHs (fh); 571 PUSHs (fh);
533 } 572 }
534 break; 573 break;
535 574
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
536 case REQ_GROUP: 607 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 608 req->int1 = 2; /* mark group as finished */
538 609
539 if (req->sv1) 610 if (req->sv1)
540 { 611 {
541 int i; 612 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 616 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 617 PUSHs (*av_fetch (av, i, 0));
547 } 618 }
548 break; 619 break;
549 620
550 case REQ_NOP: 621 case EIO_NOP:
551 case REQ_BUSY: 622 case EIO_BUSY:
552 break; 623 break;
553 624
554 case REQ_READLINK: 625 case EIO_READLINK:
626 case EIO_REALPATH:
555 if (req->result > 0) 627 if (req->result > 0)
556 { 628 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
557 SvCUR_set (req->sv2, req->result);
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2);
560 }
561 break; 629 break;
562 630
563 case REQ_STAT: 631 case EIO_STAT:
564 case REQ_LSTAT: 632 case EIO_LSTAT:
565 case REQ_FSTAT: 633 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 634 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
635
567 PL_laststatval = req->result; 636 if (!(PL_laststatval = req->result))
637 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
568 PL_statcache = *(Stat_t *)(req->ptr2); 638 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 639
640 PUSHs (sv_result);
570 break; 641 break;
571 642
572 case REQ_READ: 643 case EIO_SEEK:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 644 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break; 645 break;
577 646
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
578 default: 662 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 663 PUSHs (sv_result);
580 break; 664 break;
581 } 665 }
582 666
583 errno = req->errorno; 667 errno = req->errorno;
584 668
585 PUTBACK; 669 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 670 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 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;
588 677
589 FREETMPS; 678 FREETMPS;
590 LEAVE; 679 LEAVE;
680
681 PUTBACK;
591 } 682 }
592 683
593 if (req->grp)
594 {
595 aio_req grp = req->grp;
596
597 /* unlink request */
598 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
599 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
600
601 if (grp->grp_first == req)
602 grp->grp_first = req->grp_next;
603
604 aio_grp_dec (grp);
605 }
606
607 return !SvTRUE (ERRSV); 684 return !!SvTRUE (ERRSV);
608} 685}
609 686
687static void
610static void req_destroy (aio_req req) 688req_destroy (aio_req req)
611{ 689{
612 if (req->self) 690 if (req->self)
613 { 691 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 692 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 693 SvREFCNT_dec (req->self);
616 } 694 }
617 695
618 SvREFCNT_dec (req->sv1); 696 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 697 SvREFCNT_dec (req->sv2);
698 SvREFCNT_dec (req->sv3);
699 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 700 SvREFCNT_dec (req->callback);
621 701
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 702 free (req);
626} 703}
627 704
705static void
628static void req_cancel_subs (aio_req grp) 706req_cancel_subs (aio_req grp)
629{ 707{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 708 if (grp->type != EIO_GROUP)
633 return; 709 return;
634 710
635 SvREFCNT_dec (grp->sv2); 711 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 712 grp->sv2 = 0;
637 713
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 714 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 715}
641 716
642static void req_cancel (aio_req req) 717static void ecb_cold
718create_respipe (void)
643{ 719{
644 req->flags |= FLAG_CANCELLED; 720 if (s_epipe_renew (&respipe))
645 721 croak ("IO::AIO: unable to initialize result pipe");
646 req_cancel_subs (req);
647} 722}
648
649#ifdef USE_SOCKETS_AS_HANDLES
650# define TO_SOCKET(x) (win32_get_osfhandle (x))
651#else
652# define TO_SOCKET(x) (x)
653#endif
654 723
655static void 724static void
656create_respipe () 725poll_wait (void)
657{ 726{
658 int old_readfd = respipe [0];
659
660 if (respipe [1] >= 0)
661 respipe_close (TO_SOCKET (respipe [1]));
662
663#ifdef _WIN32
664 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
665#else
666 if (pipe (respipe))
667#endif
668 croak ("unable to initialize result pipe");
669
670 if (old_readfd >= 0)
671 {
672 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
673 croak ("unable to initialize result pipe(2)");
674
675 respipe_close (respipe [0]);
676 respipe [0] = old_readfd;
677 }
678
679#ifdef _WIN32
680 int arg = 1;
681 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
682 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
683#else
684 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
685 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
686#endif
687 croak ("unable to initialize result pipe(3)");
688
689 respipe_osf [0] = TO_SOCKET (respipe [0]);
690 respipe_osf [1] = TO_SOCKET (respipe [1]);
691}
692
693X_THREAD_PROC (aio_proc);
694
695static void start_thread (void)
696{
697 worker *wrk = calloc (1, sizeof (worker));
698
699 if (!wrk)
700 croak ("unable to allocate worker thread data");
701
702 X_LOCK (wrklock);
703
704 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
705 {
706 wrk->prev = &wrk_first;
707 wrk->next = wrk_first.next;
708 wrk_first.next->prev = wrk;
709 wrk_first.next = wrk;
710 ++started;
711 }
712 else
713 free (wrk);
714
715 X_UNLOCK (wrklock);
716}
717
718static void maybe_start_thread ()
719{
720 if (get_nthreads () >= wanted)
721 return;
722
723 /* todo: maybe use idle here, but might be less exact */
724 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
725 return;
726
727 start_thread ();
728}
729
730static void req_send (aio_req req)
731{
732 block_sig ();
733
734 ++nreqs;
735
736 X_LOCK (reqlock);
737 ++nready;
738 reqq_push (&req_queue, req);
739 X_COND_SIGNAL (reqwait);
740 X_UNLOCK (reqlock);
741
742 unblock_sig ();
743
744 maybe_start_thread ();
745}
746
747static void end_thread (void)
748{
749 aio_req req;
750
751 Newz (0, req, 1, aio_cb);
752
753 req->type = REQ_QUIT;
754 req->pri = PRI_MAX + PRI_BIAS;
755
756 X_LOCK (reqlock);
757 reqq_push (&req_queue, req);
758 X_COND_SIGNAL (reqwait);
759 X_UNLOCK (reqlock);
760
761 X_LOCK (wrklock);
762 --started;
763 X_UNLOCK (wrklock);
764}
765
766static void set_max_idle (int nthreads)
767{
768 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
769 max_idle = nthreads <= 0 ? 1 : nthreads;
770 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
771}
772
773static void min_parallel (int nthreads)
774{
775 if (wanted < nthreads)
776 wanted = nthreads;
777}
778
779static void max_parallel (int nthreads)
780{
781 if (wanted > nthreads)
782 wanted = nthreads;
783
784 while (started > wanted)
785 end_thread ();
786}
787
788static void poll_wait ()
789{
790 fd_set rfd;
791
792 while (nreqs) 727 while (eio_nreqs ())
793 { 728 {
794 int size; 729 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 730
731 X_LOCK (reslock);
796 size = res_queue.size; 732 size = res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 733 X_UNLOCK (reslock);
798 734
799 if (size) 735 if (size)
800 return; 736 return;
801 737
802 maybe_start_thread (); 738 etp_maybe_start_thread ();
803 739
804 FD_ZERO (&rfd); 740 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 741 }
809} 742}
810 743
811static int poll_cb () 744static int
745poll_cb (void)
812{ 746{
813 dSP;
814 int count = 0;
815 int maxreqs = max_poll_reqs;
816 int do_croak = 0;
817 struct timeval tv_start, tv_now;
818 aio_req req;
819
820 if (max_poll_time)
821 gettimeofday (&tv_start, 0);
822
823 block_sig ();
824
825 for (;;) 747 for (;;)
826 { 748 {
827 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)
828 { 862 {
829 maybe_start_thread (); 863 path = AvARRAY (rv)[1];
864 wdob = AvARRAY (rv)[0];
830 865
831 X_LOCK (reslock); 866 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 867 {
836 --npending; 868 *wd = SvAIO_WD (wdob);
837 869 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 if (!res_queue.size)
839 {
840 /* read any signals sent by the worker threads */
841 char buf [4];
842 while (respipe_read (respipe [0], buf, 4) == 4)
843 ;
844 }
845 }
846
847 X_UNLOCK (reslock);
848
849 if (!req)
850 break;
851
852 --nreqs;
853
854 if (req->type == REQ_GROUP && req->size)
855 {
856 req->int1 = 1; /* mark request as delayed */
857 continue;
858 } 870 }
859 else 871 else
860 { 872 *wd = EIO_INVALID_WD;
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0);
866 }
867
868 count++;
869 }
870
871 req_destroy (req);
872
873 if (maxreqs && !--maxreqs)
874 break;
875
876 if (max_poll_time)
877 {
878 gettimeofday (&tv_now, 0);
879
880 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
881 break;
882 }
883 } 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 }
884 884
885 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)));
886 break; 908 break;
887 909
888 poll_wait (); 910 default:
889 911 req->type = type_path;
890 ++maxreqs; 912 req_set_path1 (req, fh_or_path);
913 break;
891 } 914 }
892
893 unblock_sig ();
894 return count;
895} 915}
896 916
897/*****************************************************************************/ 917XS(boot_IO__AIO) ecb_cold;
898/* work around various missing functions */
899 918
900#if !HAVE_PREADWRITE
901# define pread aio_pread
902# define pwrite aio_pwrite
903
904/*
905 * make our pread/pwrite safe against themselves, but not against
906 * normal read/write by using a mutex. slows down execution a lot,
907 * but that's your problem, not mine.
908 */
909static mutex_t preadwritelock = X_MUTEX_INIT;
910
911static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
912{
913 ssize_t res;
914 off_t ooffset;
915
916 X_LOCK (preadwritelock);
917 ooffset = lseek (fd, 0, SEEK_CUR);
918 lseek (fd, offset, SEEK_SET);
919 res = read (fd, buf, count);
920 lseek (fd, ooffset, SEEK_SET);
921 X_UNLOCK (preadwritelock);
922
923 return res;
924}
925
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
927{
928 ssize_t res;
929 off_t ooffset;
930
931 X_LOCK (preadwritelock);
932 ooffset = lseek (fd, 0, SEEK_CUR);
933 lseek (fd, offset, SEEK_SET);
934 res = write (fd, buf, count);
935 lseek (fd, offset, SEEK_SET);
936 X_UNLOCK (preadwritelock);
937
938 return res;
939}
940#endif
941
942#ifndef HAVE_FUTIMES
943
944# define utimes(path,times) aio_utimes (path, times)
945# define futimes(fd,times) aio_futimes (fd, times)
946
947int aio_utimes (const char *filename, const struct timeval times[2])
948{
949 if (times)
950 {
951 struct utimbuf buf;
952
953 buf.actime = times[0].tv_sec;
954 buf.modtime = times[1].tv_sec;
955
956 return utime (filename, &buf);
957 }
958 else
959 return utime (filename, 0);
960}
961
962int aio_futimes (int fd, const struct timeval tv[2])
963{
964 errno = ENOSYS;
965 return -1;
966}
967
968#endif
969
970#if !HAVE_FDATASYNC
971# define fdatasync fsync
972#endif
973
974#if !HAVE_READAHEAD
975# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
976
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
978{
979 size_t todo = count;
980 dBUF;
981
982 while (todo > 0)
983 {
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985
986 pread (fd, aio_buf, len, offset);
987 offset += len;
988 todo -= len;
989 }
990
991 errno = 0;
992 return count;
993}
994
995#endif
996
997#if !HAVE_READDIR_R
998# define readdir_r aio_readdir_r
999
1000static mutex_t readdirlock = X_MUTEX_INIT;
1001
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1003{
1004 X_DIRENT *e;
1005 int errorno;
1006
1007 X_LOCK (readdirlock);
1008
1009 e = readdir (dirp);
1010 errorno = errno;
1011
1012 if (e)
1013 {
1014 *res = ent;
1015 strcpy (ent->d_name, e->d_name);
1016 }
1017 else
1018 *res = 0;
1019
1020 X_UNLOCK (readdirlock);
1021
1022 errno = errorno;
1023 return e ? 0 : -1;
1024}
1025#endif
1026
1027/* sendfile always needs emulation */
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1029{
1030 ssize_t res;
1031
1032 if (!count)
1033 return 0;
1034
1035#if HAVE_SENDFILE
1036# if __linux
1037 res = sendfile (ofd, ifd, &offset, count);
1038
1039# elif __freebsd
1040 /*
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts
1042 * wasted on making it similar to other I/O functions.
1043 */
1044 {
1045 off_t sbytes;
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047
1048 if (res < 0 && sbytes)
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1050 res = sbytes;
1051 }
1052
1053# elif __hpux
1054 res = sendfile (ofd, ifd, offset, count, 0, 0);
1055
1056# elif __solaris
1057 {
1058 struct sendfilevec vec;
1059 size_t sbytes;
1060
1061 vec.sfv_fd = ifd;
1062 vec.sfv_flag = 0;
1063 vec.sfv_off = offset;
1064 vec.sfv_len = count;
1065
1066 res = sendfilev (ofd, &vec, 1, &sbytes);
1067
1068 if (res < 0 && sbytes)
1069 res = sbytes;
1070 }
1071
1072# endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077
1078 if (res < 0
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1080#if __solaris
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1082#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088
1089 res = 0;
1090
1091 while (count)
1092 {
1093 ssize_t cnt;
1094
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1096
1097 if (cnt <= 0)
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102
1103 cnt = write (ofd, aio_buf, cnt);
1104
1105 if (cnt <= 0)
1106 {
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110
1111 offset += cnt;
1112 res += cnt;
1113 count -= cnt;
1114 }
1115 }
1116
1117 return res;
1118}
1119
1120/* read a full directory */
1121static void scandir_ (aio_req req, worker *self)
1122{
1123 DIR *dirp;
1124 union
1125 {
1126 X_DIRENT d;
1127 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1128 } *u;
1129 X_DIRENT *entp;
1130 char *name, *names;
1131 int memlen = 4096;
1132 int memofs = 0;
1133 int res = 0;
1134
1135 X_LOCK (wrklock);
1136 self->dirp = dirp = opendir (req->ptr1);
1137 self->dbuf = u = malloc (sizeof (*u));
1138 req->flags |= FLAG_PTR2_FREE;
1139 req->ptr2 = names = malloc (memlen);
1140 X_UNLOCK (wrklock);
1141
1142 if (dirp && u && names)
1143 for (;;)
1144 {
1145 errno = 0;
1146 readdir_r (dirp, &u->d, &entp);
1147
1148 if (!entp)
1149 break;
1150
1151 name = entp->d_name;
1152
1153 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1154 {
1155 int len = strlen (name) + 1;
1156
1157 res++;
1158
1159 while (memofs + len > memlen)
1160 {
1161 memlen *= 2;
1162 X_LOCK (wrklock);
1163 req->ptr2 = names = realloc (names, memlen);
1164 X_UNLOCK (wrklock);
1165
1166 if (!names)
1167 break;
1168 }
1169
1170 memcpy (names + memofs, name, len);
1171 memofs += len;
1172 }
1173 }
1174
1175 if (errno)
1176 res = -1;
1177
1178 req->result = res;
1179}
1180
1181/*****************************************************************************/
1182
1183X_THREAD_PROC (aio_proc)
1184{
1185 {//D
1186 aio_req req;
1187 struct timespec ts;
1188 worker *self = (worker *)thr_arg;
1189
1190 /* try to distribute timeouts somewhat randomly */
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192
1193 for (;;)
1194 {
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1196
1197 X_LOCK (reqlock);
1198
1199 for (;;)
1200 {
1201 self->req = req = reqq_shift (&req_queue);
1202
1203 if (req)
1204 break;
1205
1206 ++idle;
1207
1208 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1209 == ETIMEDOUT)
1210 {
1211 if (idle > max_idle)
1212 {
1213 --idle;
1214 X_UNLOCK (reqlock);
1215 X_LOCK (wrklock);
1216 --started;
1217 X_UNLOCK (wrklock);
1218 goto quit;
1219 }
1220
1221 /* we are allowed to idle, so do so without any timeout */
1222 X_COND_WAIT (reqwait, reqlock);
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224 }
1225
1226 --idle;
1227 }
1228
1229 --nready;
1230
1231 X_UNLOCK (reqlock);
1232
1233 errno = 0; /* strictly unnecessary */
1234
1235 if (!(req->flags & FLAG_CANCELLED))
1236 switch (req->type)
1237 {
1238 case REQ_READ: req->result = req->offs >= 0
1239 ? pread (req->int1, req->ptr1, req->size, req->offs)
1240 : read (req->int1, req->ptr1, req->size); break;
1241 case REQ_WRITE: req->result = req->offs >= 0
1242 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1243 : write (req->int1, req->ptr1, req->size); break;
1244
1245 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1246 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1247
1248 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1249 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1251
1252 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1253 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1254 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1255 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1256 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1257 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1258
1259 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1260 case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
1261 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1262 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1263 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1264 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1265 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1266 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1267 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1268 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1269
1270 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1271 case REQ_FSYNC: req->result = fsync (req->int1); break;
1272 case REQ_READDIR: scandir_ (req, self); break;
1273
1274 case REQ_BUSY:
1275#ifdef _WIN32
1276 Sleep (req->nv1 * 1000.);
1277#else
1278 {
1279 struct timeval tv;
1280
1281 tv.tv_sec = req->nv1;
1282 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1283
1284 req->result = select (0, 0, 0, 0, &tv);
1285 }
1286#endif
1287 break;
1288
1289 case REQ_UTIME:
1290 case REQ_FUTIME:
1291 {
1292 struct timeval tv[2];
1293 struct timeval *times;
1294
1295 if (req->nv1 != -1. || req->nv2 != -1.)
1296 {
1297 tv[0].tv_sec = req->nv1;
1298 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1299 tv[1].tv_sec = req->nv2;
1300 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1301
1302 times = tv;
1303 }
1304 else
1305 times = 0;
1306
1307
1308 req->result = req->type == REQ_FUTIME
1309 ? futimes (req->int1, times)
1310 : utimes (req->ptr1, times);
1311 }
1312
1313 case REQ_GROUP:
1314 case REQ_NOP:
1315 break;
1316
1317 case REQ_QUIT:
1318 goto quit;
1319
1320 default:
1321 req->result = -1;
1322 break;
1323 }
1324
1325 req->errorno = errno;
1326
1327 X_LOCK (reslock);
1328
1329 ++npending;
1330
1331 if (!reqq_push (&res_queue, req))
1332 {
1333 /* write a dummy byte to the pipe so fh becomes ready */
1334 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1335
1336 /* optionally signal the main thread asynchronously */
1337 if (main_sig)
1338 pthread_kill (main_tid, main_sig);
1339 }
1340
1341 self->req = 0;
1342 worker_clear (self);
1343
1344 X_UNLOCK (reslock);
1345 }
1346
1347quit:
1348 X_LOCK (wrklock);
1349 worker_free (self);
1350 X_UNLOCK (wrklock);
1351
1352 return 0;
1353 }//D
1354}
1355
1356/*****************************************************************************/
1357
1358static void atfork_prepare (void)
1359{
1360 X_LOCK (wrklock);
1361 X_LOCK (reqlock);
1362 X_LOCK (reslock);
1363#if !HAVE_PREADWRITE
1364 X_LOCK (preadwritelock);
1365#endif
1366#if !HAVE_READDIR_R
1367 X_LOCK (readdirlock);
1368#endif
1369}
1370
1371static void atfork_parent (void)
1372{
1373#if !HAVE_READDIR_R
1374 X_UNLOCK (readdirlock);
1375#endif
1376#if !HAVE_PREADWRITE
1377 X_UNLOCK (preadwritelock);
1378#endif
1379 X_UNLOCK (reslock);
1380 X_UNLOCK (reqlock);
1381 X_UNLOCK (wrklock);
1382}
1383
1384static void atfork_child (void)
1385{
1386 aio_req prv;
1387
1388 while (prv = reqq_shift (&req_queue))
1389 req_destroy (prv);
1390
1391 while (prv = reqq_shift (&res_queue))
1392 req_destroy (prv);
1393
1394 while (wrk_first.next != &wrk_first)
1395 {
1396 worker *wrk = wrk_first.next;
1397
1398 if (wrk->req)
1399 req_destroy (wrk->req);
1400
1401 worker_clear (wrk);
1402 worker_free (wrk);
1403 }
1404
1405 started = 0;
1406 idle = 0;
1407 nreqs = 0;
1408 nready = 0;
1409 npending = 0;
1410
1411 create_respipe ();
1412
1413 atfork_parent ();
1414}
1415
1416#define dREQ \
1417 aio_req req; \
1418 int req_pri = next_pri; \
1419 next_pri = DEFAULT_PRI + PRI_BIAS; \
1420 \
1421 if (SvOK (callback) && !SvROK (callback)) \
1422 croak ("callback must be undef or of reference type"); \
1423 \
1424 Newz (0, req, 1, aio_cb); \
1425 if (!req) \
1426 croak ("out of memory during aio_req allocation"); \
1427 \
1428 req->callback = newSVsv (callback); \
1429 req->pri = req_pri
1430
1431#define REQ_SEND \
1432 req_send (req); \
1433 \
1434 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1436
1437MODULE = IO::AIO PACKAGE = IO::AIO 919MODULE = IO::AIO PACKAGE = IO::AIO
1438 920
1439PROTOTYPES: ENABLE 921PROTOTYPES: ENABLE
1440 922
1441BOOT: 923BOOT:
1442{ 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
1443 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);
1444 1050
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1051 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1052 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1447 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1448 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1449 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1450#ifdef _WIN32
1451 X_MUTEX_CHECK (wrklock);
1452 X_MUTEX_CHECK (reslock);
1453 X_MUTEX_CHECK (reqlock);
1454 X_MUTEX_CHECK (reqwait);
1455 X_MUTEX_CHECK (preadwritelock);
1456 X_MUTEX_CHECK (readdirlock);
1457 1053
1458 X_COND_CHECK (reqwait); 1054 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459#else
1460 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1461 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1462#endif
1463 1055
1464 create_respipe (); 1056 reinit ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467} 1057}
1468 1058
1469void 1059void
1060reinit ()
1061 PROTOTYPE:
1062
1063void
1470max_poll_reqs (int nreqs) 1064max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1065 PROTOTYPE: $
1472 CODE: 1066 CODE:
1473 max_poll_reqs = nreqs; 1067 eio_set_max_poll_reqs (nreqs);
1474 1068
1475void 1069void
1476max_poll_time (double nseconds) 1070max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1071 PROTOTYPE: $
1478 CODE: 1072 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1073 eio_set_max_poll_time (nseconds);
1480 1074
1481void 1075void
1482min_parallel (int nthreads) 1076min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1077 PROTOTYPE: $
1492 CODE: 1078 CODE:
1493 set_max_idle (nthreads); 1079 eio_set_min_parallel (nthreads);
1494 1080
1495int 1081void
1496max_outstanding (int maxreqs) 1082max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1083 PROTOTYPE: $
1498 CODE: 1084 CODE:
1499 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:
1500 max_outstanding = maxreqs; 1103 max_outstanding = maxreqs;
1501 OUTPUT: 1104
1502 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}
1503 1116
1504void 1117void
1505aio_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)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1119 PPCODE:
1508{ 1120{
1509 dREQ; 1121 dREQ;
1510 1122
1511 req->type = REQ_OPEN; 1123 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1124 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1125 req->int1 = flags;
1515 req->mode = mode; 1126 req->int2 = mode;
1516 1127
1517 REQ_SEND; 1128 REQ_SEND;
1518} 1129}
1519 1130
1520void 1131void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1132aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1133 ALIAS:
1524 aio_fsync = REQ_FSYNC 1134 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1135 aio_fdatasync = EIO_FDATASYNC
1136 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1137 PPCODE:
1527{ 1138{
1139 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1140 dREQ;
1529 1141
1530 req->type = ix; 1142 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1143 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1144 req->int1 = fd;
1533 1145
1534 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;
1535} 1181}
1536 1182
1537void 1183void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1184aio_close (SV *fh, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1185 PPCODE:
1541{ 1186{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1187 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1543 int fd = PerlIO_fileno (io); 1188 int fd = s_fileno_croak (fh, 0);
1544
1545 if (fd < 0)
1546 croak ("aio_close called with fd-less filehandle");
1547
1548 PerlIO_binmode (io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1189 dREQ;
1552 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
1553 req->type = REQ_CLOSE; 1225 req->type = EIO_SEEK;
1554 req->sv1 = newSVsv (fh); 1226 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1227 req->int1 = fd;
1228 req->offs = SvVAL64 (offset);
1229 req->int2 = whence;
1556 1230
1557 REQ_SEND (req); 1231 REQ_SEND;
1558 }
1559} 1232}
1560 1233
1561void 1234void
1562aio_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)
1563 ALIAS: 1236 ALIAS:
1564 aio_read = REQ_READ 1237 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1238 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1239 PPCODE:
1568{ 1240{
1569 STRLEN svlen; 1241 STRLEN svlen;
1242 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1243 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1244 UV len = SvUV (length);
1572 1245
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1246 if (dataoffset < 0)
1577 dataoffset += svlen; 1247 dataoffset += svlen;
1578 1248
1579 if (dataoffset < 0 || dataoffset > svlen) 1249 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1250 croak ("dataoffset outside of data scalar");
1581 1251
1582 if (ix == REQ_WRITE) 1252 if (ix == EIO_WRITE)
1583 { 1253 {
1584 /* write: check length and adjust. */ 1254 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1255 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1256 len = svlen - dataoffset;
1587 } 1257 }
1588 else 1258 else
1589 { 1259 {
1590 /* read: grow scalar as necessary */ 1260 /* read: check type and grow scalar as necessary */
1261 SvUPGRADE (data, SVt_PV);
1591 svptr = SvGROW (data, len + dataoffset + 1); 1262 svptr = SvGROW (data, len + dataoffset + 1);
1592 } 1263 }
1593 1264
1594 if (len < 0)
1595 croak ("length must not be negative");
1596
1597 { 1265 {
1598 dREQ; 1266 dREQ;
1599 1267
1600 req->type = ix; 1268 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1269 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1270 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1271 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1272 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1273 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1274 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1275 req->stroffset = dataoffset;
1609 1276
1610 if (!SvREADONLY (data)) 1277 if (!SvREADONLY (data))
1611 { 1278 {
1612 SvREADONLY_on (data); 1279 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1283 REQ_SEND;
1617 } 1284 }
1618} 1285}
1619 1286
1620void 1287void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1288aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1622 PROTOTYPE: $$;$ 1289 ALIAS:
1290 aio_readlink = EIO_READLINK
1291 aio_realpath = EIO_REALPATH
1623 PPCODE: 1292 PPCODE:
1624{ 1293{
1625 SV *data;
1626 dREQ; 1294 dREQ;
1627 1295
1628 data = newSV (NAME_MAX);
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK; 1296 req->type = ix;
1632 req->sv1 = newSVsv (path); 1297 req_set_path1 (req, pathname);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636 1298
1637 REQ_SEND; 1299 REQ_SEND;
1638} 1300}
1639 1301
1640void 1302void
1641aio_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)
1642 PROTOTYPE: $$$$;$
1643 PPCODE: 1304 PPCODE:
1644{ 1305{
1306 int ifd = s_fileno_croak (in_fh , 0);
1307 int ofd = s_fileno_croak (out_fh, 1);
1645 dREQ; 1308 dREQ;
1646 1309
1647 req->type = REQ_SENDFILE; 1310 req->type = EIO_SENDFILE;
1648 req->sv1 = newSVsv (out_fh); 1311 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1312 req->int1 = ofd;
1650 req->sv2 = newSVsv (in_fh); 1313 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1314 req->int2 = ifd;
1652 req->offs = SvVAL64 (in_offset); 1315 req->offs = in_offset;
1653 req->size = length; 1316 req->size = length;
1654 1317
1655 REQ_SEND; 1318 REQ_SEND;
1656} 1319}
1657 1320
1658void 1321void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1322aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE: 1323 PPCODE:
1662{ 1324{
1325 int fd = s_fileno_croak (fh, 0);
1663 dREQ; 1326 dREQ;
1664 1327
1665 req->type = REQ_READAHEAD; 1328 req->type = EIO_READAHEAD;
1666 req->sv1 = newSVsv (fh); 1329 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1330 req->int1 = fd;
1668 req->offs = SvVAL64 (offset); 1331 req->offs = offset;
1669 req->size = length; 1332 req->size = length;
1670 1333
1671 REQ_SEND; 1334 REQ_SEND;
1672} 1335}
1673 1336
1674void 1337void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1338aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS: 1339 ALIAS:
1677 aio_stat = REQ_STAT 1340 aio_stat = EIO_STAT
1678 aio_lstat = REQ_LSTAT 1341 aio_lstat = EIO_LSTAT
1342 aio_statvfs = EIO_STATVFS
1679 PPCODE: 1343 PPCODE:
1680{ 1344{
1681 dREQ; 1345 dREQ;
1682 1346
1683 req->ptr2 = malloc (sizeof (Stat_t)); 1347 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1684 if (!req->ptr2)
1685 {
1686 req_destroy (req);
1687 croak ("out of memory during aio_stat statdata allocation");
1688 }
1689
1690 req->flags |= FLAG_PTR2_FREE;
1691 req->sv1 = newSVsv (fh_or_path);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 }
1698 else
1699 {
1700 req->type = REQ_FSTAT;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1702 }
1703 1348
1704 REQ_SEND; 1349 REQ_SEND;
1705} 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
1706 1367
1707void 1368void
1708aio_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)
1709 PPCODE: 1370 PPCODE:
1710{ 1371{
1711 dREQ; 1372 dREQ;
1712 1373
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1374 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1375 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1376 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1716
1717 if (SvPOK (fh_or_path))
1718 {
1719 req->type = REQ_UTIME;
1720 req->ptr1 = SvPVbyte_nolen (req->sv1);
1721 }
1722 else
1723 {
1724 req->type = REQ_FUTIME;
1725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1726 }
1727 1377
1728 REQ_SEND; 1378 REQ_SEND;
1729} 1379}
1730 1380
1731void 1381void
1732aio_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)
1733 PPCODE: 1383 PPCODE:
1734{ 1384{
1735 dREQ; 1385 dREQ;
1736 1386
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1387 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1388 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1740 if (SvPOK (fh_or_path))
1741 {
1742 req->type = REQ_TRUNCATE;
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 }
1745 else
1746 {
1747 req->type = REQ_FTRUNCATE;
1748 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1749 }
1750 1389
1751 REQ_SEND; 1390 REQ_SEND;
1752} 1391}
1753 1392
1754void 1393void
1755aio_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)
1756 PPCODE: 1395 PPCODE:
1757{ 1396{
1758 dREQ; 1397 dREQ;
1759 1398
1760 req->mode = mode; 1399 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1400 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1762
1763 if (SvPOK (fh_or_path))
1764 {
1765 req->type = REQ_CHMOD;
1766 req->ptr1 = SvPVbyte_nolen (req->sv1);
1767 }
1768 else
1769 {
1770 req->type = REQ_FCHMOD;
1771 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1772 }
1773 1401
1774 REQ_SEND; 1402 REQ_SEND;
1775} 1403}
1776 1404
1777void 1405void
… …
1780{ 1408{
1781 dREQ; 1409 dREQ;
1782 1410
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1411 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1412 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1413 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786 1414
1787 if (SvPOK (fh_or_path)) 1415 REQ_SEND;
1788 { 1416}
1789 req->type = REQ_CHOWN; 1417
1790 req->ptr1 = SvPVbyte_nolen (req->sv1); 1418void
1791 } 1419aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1792 else 1420 PPCODE:
1793 { 1421{
1794 req->type = REQ_FCHOWN; 1422 dREQ;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1423
1796 } 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);
1797 1444
1798 REQ_SEND; 1445 REQ_SEND;
1799} 1446}
1800 1447
1801void 1448void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1449aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1803 ALIAS: 1450 ALIAS:
1804 aio_unlink = REQ_UNLINK 1451 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1452 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1453 aio_readdir = EIO_READDIR
1807 PPCODE: 1454 PPCODE:
1808{ 1455{
1809 dREQ; 1456 dREQ;
1810 1457
1811 req->type = ix; 1458 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1459 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814
1815 REQ_SEND;
1816}
1817
1818void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->type = REQ_MKDIR;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode;
1828 1460
1829 REQ_SEND; 1461 REQ_SEND;
1830} 1462}
1831 1463
1832void 1464void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1465aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1834 ALIAS: 1466 ALIAS:
1835 aio_link = REQ_LINK 1467 aio_link = EIO_LINK
1836 aio_symlink = REQ_SYMLINK 1468 aio_symlink = EIO_SYMLINK
1837 aio_rename = REQ_RENAME 1469 aio_rename = EIO_RENAME
1838 PPCODE: 1470 PPCODE:
1839{ 1471{
1472 eio_wd wd2 = 0;
1840 dREQ; 1473 dREQ;
1841 1474
1842 req->type = ix; 1475 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 1476 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 1477 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 1478 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1479
1848 REQ_SEND; 1480 REQ_SEND;
1849} 1481}
1850 1482
1851void 1483void
1852aio_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)
1853 PPCODE: 1485 PPCODE:
1854{ 1486{
1855 dREQ; 1487 dREQ;
1856 1488
1857 req->type = REQ_MKNOD; 1489 req->type = EIO_MKNOD;
1858 req->sv1 = newSVsv (pathname);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1);
1860 req->mode = (mode_t)mode; 1490 req->int2 = (mode_t)mode;
1861 req->offs = dev; 1491 req->offs = dev;
1492 req_set_path1 (req, pathname);
1862 1493
1863 REQ_SEND; 1494 REQ_SEND;
1864} 1495}
1865 1496
1866void 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
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 1572aio_busy (double delay, SV *callback=&PL_sv_undef)
1868 PPCODE: 1573 PPCODE:
1869{ 1574{
1870 dREQ; 1575 dREQ;
1871 1576
1872 req->type = REQ_BUSY; 1577 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 1578 req->nv1 = delay < 0. ? 0. : delay;
1874 1579
1875 REQ_SEND; 1580 REQ_SEND;
1876} 1581}
1877 1582
1878void 1583void
1879aio_group (SV *callback=&PL_sv_undef) 1584aio_group (SV *callback=&PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 1585 PPCODE:
1882{ 1586{
1883 dREQ; 1587 dREQ;
1884 1588
1885 req->type = REQ_GROUP; 1589 req->type = EIO_GROUP;
1886 1590
1887 req_send (req); 1591 req_submit (req);
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1592 XPUSHs (req_sv (req, aio_grp_stash));
1889} 1593}
1890 1594
1891void 1595void
1892aio_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
1893 PPCODE: 1600 PPCODE:
1894{ 1601{
1895 dREQ; 1602 dREQ;
1896 1603
1897 req->type = REQ_NOP; 1604 req->type = ix;
1898 1605
1899 REQ_SEND; 1606 REQ_SEND;
1900} 1607}
1901 1608
1902int 1609int
1903aioreq_pri (int pri = 0) 1610aioreq_pri (int pri = 0)
1904 PROTOTYPE: ;$
1905 CODE: 1611 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 1612 RETVAL = next_pri;
1907 if (items > 0) 1613 if (items > 0)
1908 { 1614 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 1615 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 1616 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 1617 next_pri = pri;
1912 } 1618 }
1913 OUTPUT: 1619 OUTPUT:
1914 RETVAL 1620 RETVAL
1915 1621
1916void 1622void
1917aioreq_nice (int nice = 0) 1623aioreq_nice (int nice = 0)
1918 CODE: 1624 CODE:
1919 nice = next_pri - nice; 1625 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 1626 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 1627 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 1628 next_pri = nice;
1923 1629
1924void 1630void
1925flush () 1631flush ()
1926 PROTOTYPE:
1927 CODE: 1632 CODE:
1928 while (nreqs) 1633 while (eio_nreqs ())
1929 { 1634 {
1930 poll_wait (); 1635 poll_wait ();
1931 poll_cb (); 1636 poll_cb ();
1932 } 1637 }
1933 1638
1934int 1639int
1935poll() 1640poll ()
1936 PROTOTYPE:
1937 CODE: 1641 CODE:
1938 poll_wait (); 1642 poll_wait ();
1939 RETVAL = poll_cb (); 1643 RETVAL = poll_cb ();
1940 OUTPUT: 1644 OUTPUT:
1941 RETVAL 1645 RETVAL
1942 1646
1943int 1647int
1944poll_fileno() 1648poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 1649 CODE:
1947 RETVAL = respipe [0]; 1650 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 1651 OUTPUT:
1949 RETVAL 1652 RETVAL
1950 1653
1951int 1654int
1952poll_cb(...) 1655poll_cb (...)
1953 PROTOTYPE: 1656 PROTOTYPE:
1954 CODE: 1657 CODE:
1955 RETVAL = poll_cb (); 1658 RETVAL = poll_cb ();
1956 OUTPUT: 1659 OUTPUT:
1957 RETVAL 1660 RETVAL
1958 1661
1959void 1662void
1960poll_wait() 1663poll_wait ()
1961 PROTOTYPE:
1962 CODE: 1664 CODE:
1963 poll_wait (); 1665 poll_wait ();
1964 1666
1965void
1966setsig (int signum = SIGIO)
1967 PROTOTYPE: ;$
1968 CODE:
1969{
1970 if (block_sig_level)
1971 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1972
1973 X_LOCK (reslock);
1974 main_tid = pthread_self ();
1975 main_sig = signum;
1976 X_UNLOCK (reslock);
1977
1978 if (main_sig && npending)
1979 pthread_kill (main_tid, main_sig);
1980}
1981
1982void
1983aio_block (SV *cb)
1984 PROTOTYPE: &
1985 PPCODE:
1986{
1987 int count;
1988
1989 block_sig ();
1990 PUSHMARK (SP);
1991 PUTBACK;
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1993 SPAGAIN;
1994 unblock_sig ();
1995
1996 if (SvTRUE (ERRSV))
1997 croak (0);
1998
1999 XSRETURN (count);
2000}
2001
2002int 1667int
2003nreqs() 1668nreqs ()
2004 PROTOTYPE:
2005 CODE: 1669 CODE:
2006 RETVAL = nreqs; 1670 RETVAL = eio_nreqs ();
2007 OUTPUT: 1671 OUTPUT:
2008 RETVAL 1672 RETVAL
2009 1673
2010int 1674int
2011nready() 1675nready ()
2012 PROTOTYPE:
2013 CODE: 1676 CODE:
2014 RETVAL = get_nready (); 1677 RETVAL = eio_nready ();
2015 OUTPUT: 1678 OUTPUT:
2016 RETVAL 1679 RETVAL
2017 1680
2018int 1681int
2019npending() 1682npending ()
2020 PROTOTYPE:
2021 CODE: 1683 CODE:
2022 RETVAL = get_npending (); 1684 RETVAL = eio_npending ();
2023 OUTPUT: 1685 OUTPUT:
2024 RETVAL 1686 RETVAL
2025 1687
2026int 1688int
2027nthreads() 1689nthreads ()
2028 PROTOTYPE:
2029 CODE: 1690 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1691 RETVAL = eio_nthreads ();
2031 RETVAL = started;
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2033 OUTPUT: 1692 OUTPUT:
2034 RETVAL 1693 RETVAL
2035 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
2036PROTOTYPES: 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}
2037 1851
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1852MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 1853
2040void 1854void
2041cancel (aio_req_ornot req) 1855cancel (aio_req_ornot req)
2042 CODE: 1856 CODE:
2043 req_cancel (req); 1857 eio_cancel (req);
2044 1858
2045void 1859void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1860cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2047 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
2048 SvREFCNT_dec (req->callback); 1870 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 1871 req->callback = SvREFCNT_inc (cb_cv);
1872 }
1873}
2050 1874
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1875MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 1876
2053void 1877void
2054add (aio_req grp, ...) 1878add (aio_req grp, ...)
2055 PPCODE: 1879 PPCODE:
2056{ 1880{
2057 int i; 1881 int i;
2058 aio_req req;
2059
2060 if (main_sig && !block_sig_level)
2061 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2062 1882
2063 if (grp->int1 == 2) 1883 if (grp->int1 == 2)
2064 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");
2065 1885
2066 for (i = 1; i < items; ++i ) 1886 for (i = 1; i < items; ++i )
2067 { 1887 {
1888 aio_req req;
1889
2068 if (GIMME_V != G_VOID) 1890 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1891 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 1892
2071 req = SvAIO_REQ (ST (i)); 1893 req = SvAIO_REQ (ST (i));
2072 1894
2073 if (req) 1895 if (req)
2074 { 1896 eio_grp_add (grp, req);
2075 ++grp->size;
2076 req->grp = grp;
2077
2078 req->grp_prev = 0;
2079 req->grp_next = grp->grp_first;
2080
2081 if (grp->grp_first)
2082 grp->grp_first->grp_prev = req;
2083
2084 grp->grp_first = req;
2085 }
2086 } 1897 }
2087} 1898}
2088 1899
2089void 1900void
2090cancel_subs (aio_req_ornot req) 1901cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 1910 AV *av;
2100 1911
2101 grp->errorno = errno; 1912 grp->errorno = errno;
2102 1913
2103 av = newAV (); 1914 av = newAV ();
1915 av_extend (av, items - 1);
2104 1916
2105 for (i = 1; i < items; ++i ) 1917 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 1918 av_push (av, newSVsv (ST (i)));
2107 1919
2108 SvREFCNT_dec (grp->sv1); 1920 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 1927 grp->errorno = errorno;
2116 1928
2117void 1929void
2118limit (aio_req grp, int limit) 1930limit (aio_req grp, int limit)
2119 CODE: 1931 CODE:
2120 grp->int2 = limit; 1932 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 1933
2123void 1934void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 1935feed (aio_req grp, SV *callback=&PL_sv_undef)
2125 CODE: 1936 CODE:
2126{ 1937{
2127 SvREFCNT_dec (grp->sv2); 1938 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 1939 grp->sv2 = newSVsv (callback);
1940 grp->feed = aio_grp_feed;
2129 1941
2130 if (grp->int2 <= 0) 1942 if (grp->int2 <= 0)
2131 grp->int2 = 2; 1943 grp->int2 = 2;
2132 1944
2133 aio_grp_feed (grp); 1945 eio_grp_limit (grp, grp->int2);
2134} 1946}
2135 1947

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