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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.108 by root, Thu Oct 4 12:50:35 2007 UTC vs.
Revision 1.203 by root, Thu Sep 29 23:06:24 2011 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
18#ifdef _WIN32 33#ifdef _WIN32
19 34
20# define SIGIO 0 35 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 36
22#undef malloc 37 #undef malloc
23#undef free 38 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 39 #undef open
27# undef read 40 #undef read
28# undef write 41 #undef write
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
42 57 #undef opendir
43# define chown(a,b,c) (errno = ENOSYS, -1) 58 #undef readdir
44# define fchown(a,b,c) (errno = ENOSYS, -1) 59 #undef closedir
45# define fchmod(a,b) (errno = ENOSYS, -1) 60 #undef chmod
46# define symlink(a,b) (errno = ENOSYS, -1) 61 #undef fchmod
47# define readlink(a,b,c) (errno = ENOSYS, -1) 62 #undef dup
48# define mknod(a,b,c) (errno = ENOSYS, -1) 63 #undef dup2
49# define truncate(a,b) (errno = ENOSYS, -1) 64 #undef abort
50# define ftruncate(fd,o) chsize ((fd), (o)) 65 #undef pipe
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 66
57#else 67#else
58 68
59# include "autoconf/config.h"
60# include <sys/time.h> 69 #include <sys/time.h>
61# include <sys/select.h> 70 #include <sys/select.h>
62# include <unistd.h> 71 #include <unistd.h>
63# include <utime.h> 72 #include <utime.h>
64# include <signal.h> 73 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 74
67#endif
68
69#if HAVE_SENDFILE
70# if __linux
71# include <sys/sendfile.h>
72# elif __freebsd
73# include <sys/socket.h>
74# include <sys/uio.h>
75# elif __hpux
76# include <sys/socket.h>
77# elif __solaris /* not yet */
78# include <sys/sendfile.h>
79# else
80# error sendfile support requested but not available
81# endif 75#endif
82#endif
83 76
84/* number of seconds after which idle threads exit */ 77#define EIO_STRUCT_STAT Stat_t
85#define IDLE_TIMEOUT 10
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif
91
92/* buffer size for various temporary buffers */
93#define AIO_BUFSIZE 65536
94 78
95/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 80#if IVSIZE >= 8
81# define VAL64 IV
97# define SvVAL64 SvIV 82# define SvVAL64 SvIV
83# define newSVval64 newSViv
98#else 84#else
85# define VAL64 NV
99# define SvVAL64 SvNV 86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
100#endif 88#endif
101 89
102static HV *stash; 90/*****************************************************************************/
103 91
104#define dBUF \ 92#if __GNUC__ >= 3
105 char *aio_buf; \ 93# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_LOCK (wrklock); \ 94#else
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 95# define expect(expr,value) (expr)
108 X_UNLOCK (wrklock); \ 96#endif
109 if (!aio_buf) \ 97
110 return -1; 98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
111 102
112typedef SV SV8; /* byte-sv, used for argument-checking */ 103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314
315#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif
113 328
114enum { 329enum {
115 REQ_QUIT, 330 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}; 331};
131 332
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; 333typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
168 336
169enum { 337static SV *on_next_submit;
170 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 339static int max_outstanding;
172 340
173 DEFAULT_PRI = 0, 341static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 342
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); 343static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
378 345
346static void
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
379/* must be called at most once */ 360/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
381{ 363{
382 if (!req->self) 364 if (!req->self)
383 { 365 {
384 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 368 }
387 369
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 371}
390 372
391static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
392{ 381{
393 MAGIC *mg; 382 MAGIC *mg;
394 383
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 384 if (!SvROK (sv)
385 || (SvSTASH (SvRV (sv)) != aio_grp_stash
386 && SvSTASH (SvRV (sv)) != aio_req_stash
387 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 388 croak ("object of class IO::AIO::REQ expected");
397 389
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 391
400 return mg ? (aio_req)mg->mg_ptr : 0; 392 return mg ? (aio_req)mg->mg_ptr : 0;
401} 393}
402 394
395static aio_wd
396SvAIO_WD (SV *sv)
397{
398 if (!SvROK (sv)
399 || SvSTASH (SvRV (sv)) != aio_wd_stash
400 || SvTYPE (SvRV (sv)) != SVt_PVMG)
401 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402
403 return (aio_wd)(long)SvIVX (SvRV (sv));
404}
405
406static void
403static void aio_grp_feed (aio_req grp) 407aio_grp_feed (aio_req grp)
404{ 408{
405 block_sig (); 409 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 410 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 411 dSP;
414 412
415 ENTER; 413 ENTER;
416 SAVETMPS; 414 SAVETMPS;
417 PUSHMARK (SP); 415 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 417 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 419 SPAGAIN;
422 FREETMPS; 420 FREETMPS;
423 LEAVE; 421 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 } 422 }
434
435 unblock_sig ();
436} 423}
437 424
438static void aio_grp_dec (aio_req grp) 425static void
426req_submit (eio_req *req)
439{ 427{
440 --grp->size; 428 eio_submit (req);
441 429
442 /* call feeder, if applicable */ 430 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 431 {
448 block_sig (); 432 dSP;
433 SV *cb = sv_2mortal (on_next_submit);
449 434
450 if (!req_invoke (grp)) 435 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 436
457 req_destroy (grp); 437 PUSHMARK (SP);
458 unblock_sig (); 438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
459 } 440 }
460} 441}
461 442
443static int
462static int req_invoke (aio_req req) 444req_invoke (eio_req *req)
463{ 445{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 446 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 447 SvREADONLY_off (req->sv2);
468 448
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 449 if (!EIO_CANCELLED (req) && req->callback)
470 { 450 {
451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
454
471 ENTER; 455 ENTER;
472 SAVETMPS; 456 SAVETMPS;
473 PUSHMARK (SP); 457 PUSHMARK (SP);
474 EXTEND (SP, 1); 458 EXTEND (SP, 1);
475 459
460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
462 {
463 sv_result = sv_result_cache; sv_result_cache = 0;
464 SvIV_set (sv_result, req->result);
465 SvIOK_only (sv_result);
466 }
467 else
468 {
469 sv_result = newSViv (req->result);
470 SvREADONLY_on (sv_result);
471 }
472
476 switch (req->type) 473 switch (req->type)
477 { 474 {
475 case EIO_WD_OPEN:
476 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
478 case REQ_READDIR: 479 case EIO_READDIR:
479 { 480 {
480 SV *rv = &PL_sv_undef; 481 SV *rv = &PL_sv_undef;
481 482
482 if (req->result >= 0) 483 if (req->result >= 0)
483 { 484 {
484 int i; 485 int i;
485 char *buf = req->ptr2; 486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 488 AV *av = newAV ();
487 489
488 av_extend (av, req->result - 1); 490 av_extend (av, req->result - 1);
489 491
490 for (i = 0; i < req->result; ++i) 492 for (i = 0; i < req->result; ++i)
491 { 493 {
492 SV *sv = newSVpv (buf, 0); 494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 497
498 if (req->int1 & EIO_READDIR_CUSTOM2)
499 {
500 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
501 AV *avent = newAV ();
502
503 av_extend (avent, 2);
504
505 if (!sv_type [ent->type])
506 {
507 sv_type [ent->type] = newSViv (ent->type);
508 SvREADONLY_on (sv_type [ent->type]);
509 }
510
511 av_store (avent, 0, namesv);
512 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
513 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
514
515 av_store (av, i, newRV_noinc ((SV *)avent));
516 }
517 else
494 av_store (av, i, sv); 518 av_store (av, i, namesv);
519
520 ++ent;
521 }
522 else
523 {
524 SV *name = newSVpv (names, 0);
525 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 526 names += SvCUR (name) + 1;
527 }
496 } 528 }
497 529
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 530 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 531 }
500 532
501 PUSHs (rv); 533 PUSHs (rv);
534
535 if (req->int1 & EIO_READDIR_CUSTOM1)
536 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 537 }
503 break; 538 break;
504 539
505 case REQ_OPEN: 540 case EIO_OPEN:
506 { 541 {
507 /* convert fd to fh */ 542 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 543 SV *fh = &PL_sv_undef;
509 544
510 if (req->result >= 0) 545 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 547 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 548 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 549 char sym [64];
515 int symlen; 550 int symlen;
516 551
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 552 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 553 gv_init (gv, aio_stash, sym, symlen, 0);
519 554
520 symlen = snprintf ( 555 symlen = snprintf (
521 sym, 556 sym,
522 sizeof (sym), 557 sizeof (sym),
523 "%s&=%d", 558 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 560 (int)req->result
526 ); 561 );
527 562
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 564 fh = (SV *)gv;
530 } 565 }
531 566
532 XPUSHs (fh); 567 PUSHs (fh);
533 } 568 }
534 break; 569 break;
535 570
571 case EIO_STATVFS:
572 case EIO_FSTATVFS:
573 {
574 SV *rv = &PL_sv_undef;
575
576#ifndef _WIN32
577 if (req->result >= 0)
578 {
579 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580 HV *hv = newHV ();
581
582 rv = sv_2mortal (newRV_noinc ((SV *)hv));
583
584 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
586 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
587 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
593 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595 }
596#endif
597
598 PUSHs (rv);
599 }
600
601 break;
602
536 case REQ_GROUP: 603 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
538 605
539 if (req->sv1) 606 if (req->sv1)
540 { 607 {
541 int i; 608 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
547 } 614 }
548 break; 615 break;
549 616
550 case REQ_NOP: 617 case EIO_NOP:
551 case REQ_BUSY: 618 case EIO_BUSY:
552 break; 619 break;
553 620
554 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
555 if (req->result > 0) 623 if (req->result > 0)
556 { 624 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; 625 break;
562 626
563 case REQ_STAT: 627 case EIO_STAT:
564 case REQ_LSTAT: 628 case EIO_LSTAT:
565 case REQ_FSTAT: 629 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
567 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
568 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
570 break; 637 break;
571 638
572 case REQ_READ: 639 case EIO_READ:
640 {
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0; 642 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
576 break; 647 break;
577 648
649 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650 if (req->result > 0)
651 SvIV_set (sv_result, 0);
652 /* FALLTHROUGH */
653
578 default: 654 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
580 break; 656 break;
581 } 657 }
582 658
583 errno = req->errorno; 659 errno = req->errorno;
584 660
585 PUTBACK; 661 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 663 SPAGAIN;
664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
588 669
589 FREETMPS; 670 FREETMPS;
590 LEAVE; 671 LEAVE;
672
673 PUTBACK;
591 } 674 }
592 675
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); 676 return !!SvTRUE (ERRSV);
608} 677}
609 678
679static void
610static void req_destroy (aio_req req) 680req_destroy (aio_req req)
611{ 681{
612 if (req->self) 682 if (req->self)
613 { 683 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
616 } 686 }
617 687
618 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
621 693
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 694 Safefree (req);
626} 695}
627 696
697static void
628static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
629{ 699{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
633 return; 701 return;
634 702
635 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 704 grp->sv2 = 0;
637 705
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 707}
641 708
642static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
643{ 711{
644 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
645 713 croak ("IO::AIO: unable to initialize result pipe");
646 req_cancel_subs (req);
647} 714}
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
654 715
655static void 716static void
656create_respipe () 717poll_wait (void)
657{ 718{
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) 719 while (eio_nreqs ())
793 { 720 {
794 int size; 721 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 722
723 X_LOCK (reslock);
796 size = res_queue.size; 724 size = res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 725 X_UNLOCK (reslock);
798 726
799 if (size) 727 if (size)
800 return; 728 return;
801 729
802 maybe_start_thread (); 730 etp_maybe_start_thread ();
803 731
804 FD_ZERO (&rfd); 732 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 733 }
809} 734}
810 735
811static int poll_cb () 736static int
737poll_cb (void)
812{ 738{
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 (;;) 739 for (;;)
826 { 740 {
827 for (;;) 741 int res = eio_poll ();
828 {
829 maybe_start_thread ();
830 742
831 X_LOCK (reslock); 743 if (res > 0)
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 {
836 --npending;
837
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 }
859 else
860 {
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0); 744 croak (0);
866 }
867 745
868 count++; 746 if (!max_outstanding || max_outstanding > eio_nreqs ())
869 } 747 return res;
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 }
884
885 if (nreqs <= max_outstanding)
886 break;
887 748
888 poll_wait (); 749 poll_wait ();
889
890 ++maxreqs;
891 } 750 }
751}
892 752
893 unblock_sig (); 753static void ecb_cold
894 return count; 754reinit (void)
755{
756 create_respipe ();
757
758 if (eio_init (want_poll, done_poll) < 0)
759 croak ("IO::AIO: unable to initialise eio library");
895} 760}
896 761
897/*****************************************************************************/ 762/*****************************************************************************/
898/* work around various missing functions */
899 763
900#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
901# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
902# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
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 767#endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077 768
1078 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1080#if __solaris 771# define PROT_NONE 0
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
1082#endif 776#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088 777
1089 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
1090 779
1091 while (count) 780static int ecb_cold
1092 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
1093 ssize_t cnt; 782{
1094 783 int old_errno = errno;
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 784 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785 errno = old_errno;
1096 786
1097 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102 788
1103 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
1104 790
1105 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
1106 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110 793
1111 offset += cnt; 794 SvCUR_set (sv, 0);
1112 res += cnt; 795 SvPVX (sv) = 0;
1113 count -= cnt; 796 SvOK_off (sv);
1114 }
1115 }
1116 797
1117 return res; 798 return 0;
1118} 799}
1119 800
1120/* read a full directory */ 801static MGVTBL mmap_vtbl = {
1121static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
1122{ 803};
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 804
1181/*****************************************************************************/ 805/*****************************************************************************/
1182 806
1183X_THREAD_PROC (aio_proc) 807static SV *
808get_cb (SV *cb_sv)
1184{ 809{
1185 {//D 810 SvGETMAGIC (cb_sv);
811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
812}
813
814static aio_req ecb_noinline
815dreq (SV *callback)
816{
817 SV *cb_cv;
1186 aio_req req; 818 aio_req req;
1187 struct timespec ts; 819 int req_pri = next_pri;
1188 worker *self = (worker *)thr_arg; 820 next_pri = EIO_PRI_DEFAULT;
1189 821
1190 /* try to distribute timeouts somewhat randomly */ 822 cb_cv = get_cb (callback);
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192 823
1193 for (;;) 824 Newz (0, req, 1, eio_req);
1194 { 825 if (!req)
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT; 826 croak ("out of memory during eio_req allocation");
1196 827
1197 X_LOCK (reqlock); 828 req->callback = SvREFCNT_inc (cb_cv);
829 req->pri = req_pri;
1198 830
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; 831 return req;
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} 832}
1415 833
1416#define dREQ \ 834#define dREQ \
1417 aio_req req; \ 835 aio_req req = dreq (callback); \
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 836
1431#define REQ_SEND \ 837#define REQ_SEND \
838 PUTBACK; \
1432 req_send (req); \ 839 req_submit (req); \
840 SPAGAIN; \
1433 \ 841 \
1434 if (GIMME_V != G_VOID) \ 842 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 843 XPUSHs (req_sv (req, aio_req_stash));
1436 844
845ecb_inline void
846req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
847{
848 if (expect_false (SvROK (path)))
849 {
850 AV *av = (AV *)SvRV (path);
851 SV *wdob;
852
853 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
854 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
855
856 path = AvARRAY (av)[1];
857 wdob = AvARRAY (av)[0];
858
859 if (SvOK (wdob))
860 {
861 *wd = SvAIO_WD (wdob);
862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
863 }
864 else
865 *wd = EIO_INVALID_WD;
866 }
867
868 *pathsv = newSVsv (path);
869 *ptr = SvPVbyte_nolen (*pathsv);
870}
871
872static void ecb_noinline
873req_set_path1 (aio_req req, SV *path)
874{
875 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
876}
877
878static void ecb_noinline
879req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
880{
881 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
882
883 switch (SvTYPE (rv))
884 {
885 case SVt_PVIO:
886 case SVt_PVLV:
887 case SVt_PVGV:
888 req->type = type_fh;
889 req->sv1 = newSVsv (fh_or_path);
890 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
891 break;
892
893 default:
894 req->type = type_path;
895 req_set_path1 (req, fh_or_path);
896 break;
897 }
898}
899
900XS(boot_IO__AIO) ecb_cold;
901
1437MODULE = IO::AIO PACKAGE = IO::AIO 902MODULE = IO::AIO PACKAGE = IO::AIO
1438 903
1439PROTOTYPES: ENABLE 904PROTOTYPES: ENABLE
1440 905
1441BOOT: 906BOOT:
1442{ 907{
908 static const struct {
909 const char *name;
910 IV iv;
911 } *civ, const_iv[] = {
912# define const_niv(name, value) { # name, (IV) value },
913# define const_iv(name) { # name, (IV) name },
914# define const_eio(name) { # name, (IV) EIO_ ## name },
915 const_iv (EXDEV)
916 const_iv (ENOSYS)
917 const_iv (O_RDONLY)
918 const_iv (O_WRONLY)
919 const_iv (O_RDWR)
920 const_iv (O_CREAT)
921 const_iv (O_TRUNC)
922 const_iv (O_EXCL)
923 const_iv (O_APPEND)
924
925 const_iv (O_ASYNC)
926 const_iv (O_DIRECT)
927 const_iv (O_NOATIME)
928
929 const_iv (O_CLOEXEC)
930 const_iv (O_NOCTTY)
931 const_iv (O_NOFOLLOW)
932 const_iv (O_NONBLOCK)
933 const_iv (O_EXEC)
934 const_iv (O_SEARCH)
935 const_iv (O_DIRECTORY)
936 const_iv (O_DSYNC)
937 const_iv (O_RSYNC)
938 const_iv (O_SYNC)
939 const_iv (O_TTY_INIT)
940
941 const_iv (S_IFIFO)
942 const_iv (S_IFCHR)
943 const_iv (S_IFBLK)
944 const_iv (S_IFLNK)
945 const_iv (S_IFREG)
946 const_iv (S_IFDIR)
947 const_iv (S_IFWHT)
948 const_iv (S_IFSOCK)
949 const_iv (S_IFMT)
950
951 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
952 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
953 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
954 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
955 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
956 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
957
958 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
959 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
960 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
961 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
962 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
963
964 const_iv (ST_RDONLY)
965 const_iv (ST_NOSUID)
966 const_iv (ST_NODEV)
967 const_iv (ST_NOEXEC)
968 const_iv (ST_SYNCHRONOUS)
969 const_iv (ST_MANDLOCK)
970 const_iv (ST_WRITE)
971 const_iv (ST_APPEND)
972 const_iv (ST_IMMUTABLE)
973 const_iv (ST_NOATIME)
974 const_iv (ST_NODIRATIME)
975 const_iv (ST_RELATIME)
976
977 const_iv (PROT_NONE)
978 const_iv (PROT_EXEC)
979 const_iv (PROT_READ)
980 const_iv (PROT_WRITE)
981
982 /*const_iv (MAP_FIXED)*/
983 const_iv (MAP_PRIVATE)
984 const_iv (MAP_SHARED)
985 const_iv (MAP_ANONYMOUS)
986
987 /* linuxish */
988 const_iv (MAP_HUGETLB)
989 const_iv (MAP_LOCKED)
990 const_iv (MAP_NORESERVE)
991 const_iv (MAP_POPULATE)
992 const_iv (MAP_NONBLOCK)
993
994 const_eio (MCL_FUTURE)
995 const_eio (MCL_CURRENT)
996
997 const_eio (MS_ASYNC)
998 const_eio (MS_INVALIDATE)
999 const_eio (MS_SYNC)
1000
1001 const_eio (MT_MODIFY)
1002
1003 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1004 const_eio (SYNC_FILE_RANGE_WRITE)
1005 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1006
1007 const_eio (FALLOC_FL_KEEP_SIZE)
1008
1009 const_eio (READDIR_DENTS)
1010 const_eio (READDIR_DIRS_FIRST)
1011 const_eio (READDIR_STAT_ORDER)
1012 const_eio (READDIR_FOUND_UNKNOWN)
1013
1014 const_eio (DT_UNKNOWN)
1015 const_eio (DT_FIFO)
1016 const_eio (DT_CHR)
1017 const_eio (DT_DIR)
1018 const_eio (DT_BLK)
1019 const_eio (DT_REG)
1020 const_eio (DT_LNK)
1021 const_eio (DT_SOCK)
1022 const_eio (DT_WHT)
1023 };
1024
1443 stash = gv_stashpv ("IO::AIO", 1); 1025 aio_stash = gv_stashpv ("IO::AIO" , 1);
1026 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1027 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1028 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1444 1029
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1030 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1031 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 1032
1458 X_COND_CHECK (reqwait); 1033 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 1034
1464 create_respipe (); 1035 reinit ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467} 1036}
1468 1037
1469void 1038void
1039reinit ()
1040 PROTOTYPE:
1041
1042void
1470max_poll_reqs (int nreqs) 1043max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1044 PROTOTYPE: $
1472 CODE: 1045 CODE:
1473 max_poll_reqs = nreqs; 1046 eio_set_max_poll_reqs (nreqs);
1474 1047
1475void 1048void
1476max_poll_time (double nseconds) 1049max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1050 PROTOTYPE: $
1478 CODE: 1051 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1052 eio_set_max_poll_time (nseconds);
1480 1053
1481void 1054void
1482min_parallel (int nthreads) 1055min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1056 PROTOTYPE: $
1492 CODE: 1057 CODE:
1493 set_max_idle (nthreads); 1058 eio_set_min_parallel (nthreads);
1494 1059
1495int 1060void
1496max_outstanding (int maxreqs) 1061max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1062 PROTOTYPE: $
1498 CODE: 1063 CODE:
1499 RETVAL = max_outstanding; 1064 eio_set_max_parallel (nthreads);
1065
1066void
1067max_idle (unsigned int nthreads)
1068 PROTOTYPE: $
1069 CODE:
1070 eio_set_max_idle (nthreads);
1071
1072void
1073idle_timeout (unsigned int seconds)
1074 PROTOTYPE: $
1075 CODE:
1076 eio_set_idle_timeout (seconds);
1077
1078void
1079max_outstanding (unsigned int maxreqs)
1080 PROTOTYPE: $
1081 CODE:
1500 max_outstanding = maxreqs; 1082 max_outstanding = maxreqs;
1501 OUTPUT: 1083
1502 RETVAL 1084void
1085aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1086 PPCODE:
1087{
1088 dREQ;
1089
1090 req->type = EIO_WD_OPEN;
1091 req_set_path1 (req, pathname);
1092
1093 REQ_SEND;
1094}
1503 1095
1504void 1096void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1097aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1098 PPCODE:
1508{ 1099{
1509 dREQ; 1100 dREQ;
1510 1101
1511 req->type = REQ_OPEN; 1102 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1103 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1104 req->int1 = flags;
1515 req->mode = mode; 1105 req->int2 = mode;
1516 1106
1517 REQ_SEND; 1107 REQ_SEND;
1518} 1108}
1519 1109
1520void 1110void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1111aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1112 ALIAS:
1524 aio_fsync = REQ_FSYNC 1113 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1114 aio_fdatasync = EIO_FDATASYNC
1115 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1116 PPCODE:
1527{ 1117{
1118 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1119 dREQ;
1529 1120
1530 req->type = ix; 1121 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1122 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1123 req->int1 = fd;
1533 1124
1534 REQ_SEND (req); 1125 REQ_SEND (req);
1535} 1126}
1536 1127
1537void 1128void
1129aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1130 PPCODE:
1131{
1132 int fd = s_fileno_croak (fh, 0);
1133 dREQ;
1134
1135 req->type = EIO_SYNC_FILE_RANGE;
1136 req->sv1 = newSVsv (fh);
1137 req->int1 = fd;
1138 req->offs = offset;
1139 req->size = nbytes;
1140 req->int2 = flags;
1141
1142 REQ_SEND (req);
1143}
1144
1145void
1146aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1147 PPCODE:
1148{
1149 int fd = s_fileno_croak (fh, 0);
1150 dREQ;
1151
1152 req->type = EIO_FALLOCATE;
1153 req->sv1 = newSVsv (fh);
1154 req->int1 = fd;
1155 req->int2 = mode;
1156 req->offs = offset;
1157 req->size = len;
1158
1159 REQ_SEND (req);
1160}
1161
1162void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1163aio_close (SV *fh, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1164 PPCODE:
1541{ 1165{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1166 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1543 int fd = PerlIO_fileno (io); 1167 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 (aTHX_ io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1168 dREQ;
1552 1169
1170 if (expect_false (close_fd < 0))
1171 {
1172 int pipefd [2];
1173
1174 if (
1175#ifdef _WIN32
1176 _pipe (pipefd, 1, _O_BINARY) < 0
1177#else
1178 pipe (pipefd) < 0
1179 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1180#endif
1181 || close (pipefd [1]) < 0
1182 )
1183 abort (); /*D*/
1184
1185 close_fd = pipefd [0];
1186 }
1187
1553 req->type = REQ_CLOSE; 1188 req->type = EIO_DUP2;
1189 req->int1 = close_fd;
1554 req->sv1 = newSVsv (fh); 1190 req->sv2 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1191 req->int2 = fd;
1556 1192
1557 REQ_SEND (req); 1193 REQ_SEND (req);
1558 }
1559} 1194}
1560 1195
1561void 1196void
1562aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1563 ALIAS: 1198 ALIAS:
1564 aio_read = REQ_READ 1199 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1200 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1201 PPCODE:
1568{ 1202{
1569 STRLEN svlen; 1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1205 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1206 UV len = SvUV (length);
1572 1207
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1208 if (dataoffset < 0)
1577 dataoffset += svlen; 1209 dataoffset += svlen;
1578 1210
1579 if (dataoffset < 0 || dataoffset > svlen) 1211 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1212 croak ("dataoffset outside of data scalar");
1581 1213
1582 if (ix == REQ_WRITE) 1214 if (ix == EIO_WRITE)
1583 { 1215 {
1584 /* write: check length and adjust. */ 1216 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1217 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1218 len = svlen - dataoffset;
1587 } 1219 }
1588 else 1220 else
1589 { 1221 {
1590 /* read: grow scalar as necessary */ 1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1591 svptr = SvGROW (data, len + dataoffset + 1); 1224 svptr = SvGROW (data, len + dataoffset + 1);
1592 } 1225 }
1593 1226
1594 if (len < 0)
1595 croak ("length must not be negative");
1596
1597 { 1227 {
1598 dREQ; 1228 dREQ;
1599 1229
1600 req->type = ix; 1230 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1232 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1234 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1235 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1236 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1237 req->stroffset = dataoffset;
1609 1238
1610 if (!SvREADONLY (data)) 1239 if (!SvREADONLY (data))
1611 { 1240 {
1612 SvREADONLY_on (data); 1241 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1245 REQ_SEND;
1617 } 1246 }
1618} 1247}
1619 1248
1620void 1249void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1622 PROTOTYPE: $$;$ 1251 ALIAS:
1252 aio_readlink = EIO_READLINK
1253 aio_realpath = EIO_REALPATH
1623 PPCODE: 1254 PPCODE:
1624{ 1255{
1625 SV *data;
1626 dREQ; 1256 dREQ;
1627 1257
1628 data = newSV (NAME_MAX);
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK; 1258 req->type = ix;
1632 req->sv1 = newSVsv (path); 1259 req_set_path1 (req, pathname);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636 1260
1637 REQ_SEND; 1261 REQ_SEND;
1638} 1262}
1639 1263
1640void 1264void
1641aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1642 PROTOTYPE: $$$$;$
1643 PPCODE: 1266 PPCODE:
1644{ 1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1645 dREQ; 1270 dREQ;
1646 1271
1647 req->type = REQ_SENDFILE; 1272 req->type = EIO_SENDFILE;
1648 req->sv1 = newSVsv (out_fh); 1273 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1274 req->int1 = ofd;
1650 req->sv2 = newSVsv (in_fh); 1275 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1276 req->int2 = ifd;
1652 req->offs = SvVAL64 (in_offset); 1277 req->offs = in_offset;
1653 req->size = length; 1278 req->size = length;
1654 1279
1655 REQ_SEND; 1280 REQ_SEND;
1656} 1281}
1657 1282
1658void 1283void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE: 1285 PPCODE:
1662{ 1286{
1287 int fd = s_fileno_croak (fh, 0);
1663 dREQ; 1288 dREQ;
1664 1289
1665 req->type = REQ_READAHEAD; 1290 req->type = EIO_READAHEAD;
1666 req->sv1 = newSVsv (fh); 1291 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1292 req->int1 = fd;
1668 req->offs = SvVAL64 (offset); 1293 req->offs = offset;
1669 req->size = length; 1294 req->size = length;
1670 1295
1671 REQ_SEND; 1296 REQ_SEND;
1672} 1297}
1673 1298
1674void 1299void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS: 1301 ALIAS:
1677 aio_stat = REQ_STAT 1302 aio_stat = EIO_STAT
1678 aio_lstat = REQ_LSTAT 1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1679 PPCODE: 1305 PPCODE:
1680{ 1306{
1681 dREQ; 1307 dREQ;
1682 1308
1683 req->ptr2 = malloc (sizeof (Stat_t)); 1309 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 1310
1704 REQ_SEND; 1311 REQ_SEND;
1705} 1312}
1313
1314UV
1315major (UV dev)
1316 ALIAS:
1317 minor = 1
1318 CODE:
1319 RETVAL = ix ? major (dev) : minor (dev);
1320 OUTPUT:
1321 RETVAL
1322
1323UV
1324makedev (UV maj, UV min)
1325 CODE:
1326 RETVAL = makedev (maj, min);
1327 OUTPUT:
1328 RETVAL
1706 1329
1707void 1330void
1708aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1331aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1709 PPCODE: 1332 PPCODE:
1710{ 1333{
1711 dREQ; 1334 dREQ;
1712 1335
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1336 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1337 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1338 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 1339
1728 REQ_SEND; 1340 REQ_SEND;
1729} 1341}
1730 1342
1731void 1343void
1732aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1344aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1733 PPCODE: 1345 PPCODE:
1734{ 1346{
1735 dREQ; 1347 dREQ;
1736 1348
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1349 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1350 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 1351
1751 REQ_SEND; 1352 REQ_SEND;
1752} 1353}
1753 1354
1754void 1355void
1755aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1356aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1756 PPCODE: 1357 PPCODE:
1757{ 1358{
1758 dREQ; 1359 dREQ;
1759 1360
1760 req->mode = mode; 1361 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1362 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 1363
1774 REQ_SEND; 1364 REQ_SEND;
1775} 1365}
1776 1366
1777void 1367void
… …
1780{ 1370{
1781 dREQ; 1371 dREQ;
1782 1372
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1373 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1374 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1375 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786 1376
1787 if (SvPOK (fh_or_path)) 1377 REQ_SEND;
1788 { 1378}
1789 req->type = REQ_CHOWN; 1379
1790 req->ptr1 = SvPVbyte_nolen (req->sv1); 1380void
1791 } 1381aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1792 else 1382 PPCODE:
1793 { 1383{
1794 req->type = REQ_FCHOWN; 1384 dREQ;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1385
1796 } 1386 req->type = EIO_READDIR;
1387 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1388
1389 if (flags & EIO_READDIR_DENTS)
1390 req->int1 |= EIO_READDIR_CUSTOM2;
1391
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->type = EIO_MKDIR;
1404 req->int2 = mode;
1405 req_set_path1 (req, pathname);
1797 1406
1798 REQ_SEND; 1407 REQ_SEND;
1799} 1408}
1800 1409
1801void 1410void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1803 ALIAS: 1412 ALIAS:
1804 aio_unlink = REQ_UNLINK 1413 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1414 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1415 aio_readdir = EIO_READDIR
1807 PPCODE: 1416 PPCODE:
1808{ 1417{
1809 dREQ; 1418 dREQ;
1810 1419
1811 req->type = ix; 1420 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1421 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814 1422
1815 REQ_SEND; 1423 REQ_SEND;
1816} 1424}
1817 1425
1818void 1426void
1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1428 ALIAS:
1429 aio_link = EIO_LINK
1430 aio_symlink = EIO_SYMLINK
1431 aio_rename = EIO_RENAME
1432 PPCODE:
1433{
1434 dREQ;
1435 eio_wd wd2 = 0;
1436
1437 req->type = ix;
1438 req_set_path1 (req, oldpath);
1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1440 req->int3 = (long)wd2;
1441
1442 REQ_SEND;
1443}
1444
1445void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1820 PPCODE: 1447 PPCODE:
1821{ 1448{
1822 dREQ; 1449 dREQ;
1823 1450
1824 req->type = REQ_MKDIR; 1451 req->type = EIO_MKNOD;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode; 1452 req->int2 = (mode_t)mode;
1828 1453 req->offs = dev;
1829 REQ_SEND; 1454 req_set_path1 (req, pathname);
1830}
1831
1832void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1834 ALIAS:
1835 aio_link = REQ_LINK
1836 aio_symlink = REQ_SYMLINK
1837 aio_rename = REQ_RENAME
1838 PPCODE:
1839{
1840 dREQ;
1841
1842 req->type = ix;
1843 req->sv2 = newSVsv (oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2);
1845 req->sv1 = newSVsv (newpath);
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1455
1848 REQ_SEND; 1456 REQ_SEND;
1849} 1457}
1850 1458
1851void 1459void
1852aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1460aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1853 PPCODE: 1461 ALIAS:
1462 aio_mtouch = EIO_MTOUCH
1463 aio_msync = EIO_MSYNC
1464 PPCODE:
1854{ 1465{
1855 dREQ; 1466 STRLEN svlen;
1856 1467 char *svptr = SvPVbyte (data, svlen);
1468 UV len = SvUV (length);
1469
1470 if (offset < 0)
1471 offset += svlen;
1472
1473 if (offset < 0 || offset > svlen)
1474 croak ("offset outside of scalar");
1475
1476 if (!SvOK (length) || len + offset > svlen)
1477 len = svlen - offset;
1478
1479 {
1480 dREQ;
1481
1482 req->type = ix;
1483 req->sv2 = SvREFCNT_inc (data);
1484 req->ptr2 = (char *)svptr + offset;
1485 req->size = len;
1486 req->int1 = flags;
1487
1488 REQ_SEND;
1489 }
1490}
1491
1492void
1493aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1494 PPCODE:
1495{
1496 STRLEN svlen;
1497 char *svptr = SvPVbyte (data, svlen);
1498 UV len = SvUV (length);
1499
1500 if (offset < 0)
1501 offset += svlen;
1502
1503 if (offset < 0 || offset > svlen)
1504 croak ("offset outside of scalar");
1505
1506 if (!SvOK (length) || len + offset > svlen)
1507 len = svlen - offset;
1508
1509 {
1510 dREQ;
1511
1857 req->type = REQ_MKNOD; 1512 req->type = EIO_MLOCK;
1858 req->sv1 = newSVsv (pathname); 1513 req->sv2 = SvREFCNT_inc (data);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1); 1514 req->ptr2 = (char *)svptr + offset;
1860 req->mode = (mode_t)mode;
1861 req->offs = dev; 1515 req->size = len;
1862 1516
1863 REQ_SEND; 1517 REQ_SEND;
1518 }
1519}
1520
1521void
1522aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->type = EIO_MLOCKALL;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1864} 1531}
1865 1532
1866void 1533void
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 1534aio_busy (double delay, SV *callback=&PL_sv_undef)
1868 PPCODE: 1535 PPCODE:
1869{ 1536{
1870 dREQ; 1537 dREQ;
1871 1538
1872 req->type = REQ_BUSY; 1539 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 1540 req->nv1 = delay < 0. ? 0. : delay;
1874 1541
1875 REQ_SEND; 1542 REQ_SEND;
1876} 1543}
1877 1544
1878void 1545void
1879aio_group (SV *callback=&PL_sv_undef) 1546aio_group (SV *callback=&PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 1547 PPCODE:
1882{ 1548{
1883 dREQ; 1549 dREQ;
1884 1550
1885 req->type = REQ_GROUP; 1551 req->type = EIO_GROUP;
1886 1552
1887 req_send (req); 1553 req_submit (req);
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1554 XPUSHs (req_sv (req, aio_grp_stash));
1889} 1555}
1890 1556
1891void 1557void
1892aio_nop (SV *callback=&PL_sv_undef) 1558aio_nop (SV *callback=&PL_sv_undef)
1559 ALIAS:
1560 aio_nop = EIO_NOP
1561 aio_sync = EIO_SYNC
1893 PPCODE: 1562 PPCODE:
1894{ 1563{
1895 dREQ; 1564 dREQ;
1896 1565
1897 req->type = REQ_NOP; 1566 req->type = ix;
1898 1567
1899 REQ_SEND; 1568 REQ_SEND;
1900} 1569}
1901 1570
1902int 1571int
1903aioreq_pri (int pri = 0) 1572aioreq_pri (int pri = 0)
1904 PROTOTYPE: ;$
1905 CODE: 1573 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 1574 RETVAL = next_pri;
1907 if (items > 0) 1575 if (items > 0)
1908 { 1576 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 1577 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 1578 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 1579 next_pri = pri;
1912 } 1580 }
1913 OUTPUT: 1581 OUTPUT:
1914 RETVAL 1582 RETVAL
1915 1583
1916void 1584void
1917aioreq_nice (int nice = 0) 1585aioreq_nice (int nice = 0)
1918 CODE: 1586 CODE:
1919 nice = next_pri - nice; 1587 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 1588 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 1589 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 1590 next_pri = nice;
1923 1591
1924void 1592void
1925flush () 1593flush ()
1926 PROTOTYPE:
1927 CODE: 1594 CODE:
1928 while (nreqs) 1595 while (eio_nreqs ())
1929 { 1596 {
1930 poll_wait (); 1597 poll_wait ();
1931 poll_cb (); 1598 poll_cb ();
1932 } 1599 }
1933 1600
1934int 1601int
1935poll() 1602poll ()
1936 PROTOTYPE:
1937 CODE: 1603 CODE:
1938 poll_wait (); 1604 poll_wait ();
1939 RETVAL = poll_cb (); 1605 RETVAL = poll_cb ();
1940 OUTPUT: 1606 OUTPUT:
1941 RETVAL 1607 RETVAL
1942 1608
1943int 1609int
1944poll_fileno() 1610poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 1611 CODE:
1947 RETVAL = respipe [0]; 1612 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 1613 OUTPUT:
1949 RETVAL 1614 RETVAL
1950 1615
1951int 1616int
1952poll_cb(...) 1617poll_cb (...)
1953 PROTOTYPE: 1618 PROTOTYPE:
1954 CODE: 1619 CODE:
1955 RETVAL = poll_cb (); 1620 RETVAL = poll_cb ();
1956 OUTPUT: 1621 OUTPUT:
1957 RETVAL 1622 RETVAL
1958 1623
1959void 1624void
1960poll_wait() 1625poll_wait ()
1961 PROTOTYPE:
1962 CODE: 1626 CODE:
1963 poll_wait (); 1627 poll_wait ();
1964 1628
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 1629int
2003nreqs() 1630nreqs ()
2004 PROTOTYPE:
2005 CODE: 1631 CODE:
2006 RETVAL = nreqs; 1632 RETVAL = eio_nreqs ();
2007 OUTPUT: 1633 OUTPUT:
2008 RETVAL 1634 RETVAL
2009 1635
2010int 1636int
2011nready() 1637nready ()
2012 PROTOTYPE:
2013 CODE: 1638 CODE:
2014 RETVAL = get_nready (); 1639 RETVAL = eio_nready ();
2015 OUTPUT: 1640 OUTPUT:
2016 RETVAL 1641 RETVAL
2017 1642
2018int 1643int
2019npending() 1644npending ()
2020 PROTOTYPE:
2021 CODE: 1645 CODE:
2022 RETVAL = get_npending (); 1646 RETVAL = eio_npending ();
2023 OUTPUT: 1647 OUTPUT:
2024 RETVAL 1648 RETVAL
2025 1649
2026int 1650int
2027nthreads() 1651nthreads ()
2028 PROTOTYPE:
2029 CODE: 1652 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1653 RETVAL = eio_nthreads ();
2031 RETVAL = started;
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2033 OUTPUT: 1654 OUTPUT:
2034 RETVAL 1655 RETVAL
2035 1656
1657int
1658fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1659 CODE:
1660 RETVAL = posix_fadvise (fh, offset, length, advice);
1661 OUTPUT:
1662 RETVAL
1663
1664IV
1665sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1666 CODE:
1667 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1668 OUTPUT:
1669 RETVAL
1670
1671void
1672mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1673 PPCODE:
1674 sv_unmagic (scalar, MMAP_MAGIC);
1675{
1676 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1677 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1678 if (addr == (void *)-1)
1679 XSRETURN_NO;
1680
1681 sv_force_normal (scalar);
1682
1683 /* we store the length in mg_obj, as namlen is I32 :/ */
1684 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1685 ->mg_obj = (SV *)length;
1686
1687 SvUPGRADE (scalar, SVt_PV); /* nop... */
1688
1689 if (!(prot & PROT_WRITE))
1690 SvREADONLY_on (scalar);
1691
1692 if (SvLEN (scalar))
1693 Safefree (SvPVX (scalar));
1694
1695 SvPVX (scalar) = (char *)addr;
1696 SvCUR_set (scalar, length);
1697 SvLEN_set (scalar, 0);
1698 SvPOK_only (scalar);
1699
1700 XSRETURN_YES;
1701}
1702
1703void
1704munmap (SV *scalar)
1705 CODE:
1706 sv_unmagic (scalar, MMAP_MAGIC);
1707
1708int
1709madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1710 ALIAS:
1711 mprotect = 1
1712 CODE:
1713{
1714 STRLEN svlen;
1715 void *addr = SvPVbyte (scalar, svlen);
1716 size_t len = SvUV (length);
1717
1718 if (offset < 0)
1719 offset += svlen;
1720
1721 if (offset < 0 || offset > svlen)
1722 croak ("offset outside of scalar");
1723
1724 if (!SvOK (length) || len + offset > svlen)
1725 len = svlen - offset;
1726
1727 addr = (void *)(((intptr_t)addr) + offset);
1728 eio_page_align (&addr, &len);
1729
1730 switch (ix)
1731 {
1732 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1733 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1734 }
1735}
1736 OUTPUT:
1737 RETVAL
1738
1739int
1740munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1741 CODE:
1742{
1743 STRLEN svlen;
1744 void *addr = SvPVbyte (scalar, svlen);
1745 size_t len = SvUV (length);
1746
1747 if (offset < 0)
1748 offset += svlen;
1749
1750 if (offset < 0 || offset > svlen)
1751 croak ("offset outside of scalar");
1752
1753 if (!SvOK (length) || len + offset > svlen)
1754 len = svlen - offset;
1755
1756 addr = (void *)(((intptr_t)addr) + offset);
1757 eio_page_align (&addr, &len);
1758#if _POSIX_MEMLOCK_RANGE
1759 RETVAL = munlock (addr, len);
1760#else
1761 RETVAL = ((errno = ENOSYS), -1);
1762#endif
1763}
1764 OUTPUT:
1765 RETVAL
1766
1767int
1768munlockall ()
1769 CODE:
1770#if _POSIX_MEMLOCK
1771 munlockall ();
1772#else
1773 RETVAL = -1;
1774 errno = ENOSYS;
1775#endif
1776 OUTPUT:
1777 RETVAL
1778
1779void _on_next_submit (SV *cb)
1780 CODE:
1781 SvREFCNT_dec (on_next_submit);
1782 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1783
2036PROTOTYPES: DISABLE 1784PROTOTYPES: DISABLE
1785
1786MODULE = IO::AIO PACKAGE = IO::AIO::WD
1787
1788BOOT:
1789{
1790 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1791 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1792}
1793
1794void
1795DESTROY (SV *self)
1796 CODE:
1797{
1798 aio_wd wd = SvAIO_WD (self);
1799#if HAVE_AT
1800 {
1801 SV *callback = &PL_sv_undef;
1802 dREQ; /* clobbers next_pri :/ */
1803 next_pri = req->pri; /* restore next_pri */
1804 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1805 req->type = EIO_WD_CLOSE;
1806 req->wd = wd;
1807 REQ_SEND;
1808 }
1809#else
1810 eio_wd_close_sync (wd);
1811#endif
1812}
2037 1813
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1814MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 1815
2040void 1816void
2041cancel (aio_req_ornot req) 1817cancel (aio_req_ornot req)
2042 CODE: 1818 CODE:
2043 req_cancel (req); 1819 eio_cancel (req);
2044 1820
2045void 1821void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1822cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2047 CODE: 1823 PPCODE:
1824{
1825 if (GIMME_V != G_VOID)
1826 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1827
1828 if (items > 1)
1829 {
1830 SV *cb_cv =get_cb (callback);
1831
2048 SvREFCNT_dec (req->callback); 1832 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 1833 req->callback = SvREFCNT_inc (cb_cv);
1834 }
1835}
2050 1836
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1837MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 1838
2053void 1839void
2054add (aio_req grp, ...) 1840add (aio_req grp, ...)
2055 PPCODE: 1841 PPCODE:
2056{ 1842{
2057 int i; 1843 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 1844
2063 if (grp->int1 == 2) 1845 if (grp->int1 == 2)
2064 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1846 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2065 1847
2066 for (i = 1; i < items; ++i ) 1848 for (i = 1; i < items; ++i )
2067 { 1849 {
1850 aio_req req;
1851
2068 if (GIMME_V != G_VOID) 1852 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1853 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 1854
2071 req = SvAIO_REQ (ST (i)); 1855 req = SvAIO_REQ (ST (i));
2072 1856
2073 if (req) 1857 if (req)
2074 { 1858 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 } 1859 }
2087} 1860}
2088 1861
2089void 1862void
2090cancel_subs (aio_req_ornot req) 1863cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 1872 AV *av;
2100 1873
2101 grp->errorno = errno; 1874 grp->errorno = errno;
2102 1875
2103 av = newAV (); 1876 av = newAV ();
1877 av_extend (av, items - 1);
2104 1878
2105 for (i = 1; i < items; ++i ) 1879 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 1880 av_push (av, newSVsv (ST (i)));
2107 1881
2108 SvREFCNT_dec (grp->sv1); 1882 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 1889 grp->errorno = errorno;
2116 1890
2117void 1891void
2118limit (aio_req grp, int limit) 1892limit (aio_req grp, int limit)
2119 CODE: 1893 CODE:
2120 grp->int2 = limit; 1894 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 1895
2123void 1896void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 1897feed (aio_req grp, SV *callback=&PL_sv_undef)
2125 CODE: 1898 CODE:
2126{ 1899{
2127 SvREFCNT_dec (grp->sv2); 1900 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 1901 grp->sv2 = newSVsv (callback);
1902 grp->feed = aio_grp_feed;
2129 1903
2130 if (grp->int2 <= 0) 1904 if (grp->int2 <= 0)
2131 grp->int2 = 2; 1905 grp->int2 = 2;
2132 1906
2133 aio_grp_feed (grp); 1907 eio_grp_limit (grp, grp->int2);
2134} 1908}
2135 1909

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