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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.114 by root, Sat Apr 26 12:00:23 2008 UTC vs.
Revision 1.201 by root, Thu Sep 29 09:57:12 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_SYNC, 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 (void)
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 (void)
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 (void)
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 (void)
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 (void)
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 (void);
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 ((long)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 (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 PUSHs (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 | G_DISCARD); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 663 SPAGAIN;
588 664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
669
589 FREETMPS; 670 FREETMPS;
590 LEAVE; 671 LEAVE;
591 672
592 PUTBACK; 673 PUTBACK;
593 } 674 }
594 675
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 676 return !!SvTRUE (ERRSV);
610} 677}
611 678
679static void
612static void req_destroy (aio_req req) 680req_destroy (aio_req req)
613{ 681{
614 if (req->self) 682 if (req->self)
615 { 683 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
618 } 686 }
619 687
620 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
623 693
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 694 Safefree (req);
628} 695}
629 696
697static void
630static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
631{ 699{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
635 return; 701 return;
636 702
637 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 704 grp->sv2 = 0;
639 705
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 707}
643 708
644static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
645{ 711{
646 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
647 713 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 714}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656 715
657static void 716static void
658create_respipe (void) 717poll_wait (void)
659{ 718{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe))
669#endif
670 croak ("unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait (void)
791{
792 fd_set rfd;
793
794 while (nreqs) 719 while (eio_nreqs ())
795 { 720 {
796 int size; 721 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 722
723 X_LOCK (reslock);
798 size = res_queue.size; 724 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 725 X_UNLOCK (reslock);
800 726
801 if (size) 727 if (size)
802 return; 728 return;
803 729
804 maybe_start_thread (); 730 etp_maybe_start_thread ();
805 731
806 FD_ZERO (&rfd); 732 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 733 }
811} 734}
812 735
813static int poll_cb (void) 736static int
737poll_cb (void)
814{ 738{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 739 for (;;)
828 { 740 {
829 for (;;) 741 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 742
833 X_LOCK (reslock); 743 if (res > 0)
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 {
838 --npending;
839
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 }
861 else
862 {
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0); 744 croak (0);
868 }
869 745
870 count++; 746 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 747 return res;
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 }
886
887 if (nreqs <= max_outstanding)
888 break;
889 748
890 poll_wait (); 749 poll_wait ();
891
892 ++maxreqs;
893 } 750 }
751}
894 752
895 unblock_sig (); 753static void ecb_cold
896 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");
897} 760}
898 761
899/*****************************************************************************/ 762/*****************************************************************************/
900/* work around various missing functions */
901 763
902#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
903# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
904# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{
915 ssize_t res;
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926}
927
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
929{
930 ssize_t res;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif 767#endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079 768
1080 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1082#if __solaris 771# define PROT_NONE 0
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
1084#endif 776#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090 777
1091 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
1092 779
1093 while (count) 780static int ecb_cold
1094 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
1095 ssize_t cnt; 782{
1096 783 int old_errno = errno;
1097 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;
1098 786
1099 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104 788
1105 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
1106 790
1107 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
1108 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112 793
1113 offset += cnt; 794 SvCUR_set (sv, 0);
1114 res += cnt; 795 SvPVX (sv) = 0;
1115 count -= cnt; 796 SvOK_off (sv);
1116 }
1117 }
1118 797
1119 return res; 798 return 0;
1120} 799}
1121 800
1122/* read a full directory */ 801static MGVTBL mmap_vtbl = {
1123static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
1124{ 803};
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183static int
1184aio_close (int fd)
1185{
1186 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1187
1188 X_LOCK (wrklock);
1189
1190 if (close_pipe < 0)
1191 {
1192 int pipefd [2];
1193
1194 if (pipe (pipefd) < 0
1195 || close (pipefd [1]) < 0
1196 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1197 {
1198 X_UNLOCK (wrklock);
1199 return -1;
1200 }
1201
1202 close_pipe = pipefd [0];
1203 }
1204
1205 X_UNLOCK (wrklock);
1206
1207 return dup2 (close_pipe, fd) < 0 ? -1 : 0;
1208}
1209 804
1210/*****************************************************************************/ 805/*****************************************************************************/
1211 806
1212X_THREAD_PROC (aio_proc) 807static SV *
808get_cb (SV *cb_sv)
1213{ 809{
1214 aio_req req; 810 SvGETMAGIC (cb_sv);
1215 struct timespec ts; 811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1216 worker *self = (worker *)thr_arg;
1217
1218 /* try to distribute timeouts somewhat randomly */
1219 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1220
1221 for (;;)
1222 {
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224
1225 X_LOCK (reqlock);
1226
1227 for (;;)
1228 {
1229 self->req = req = reqq_shift (&req_queue);
1230
1231 if (req)
1232 break;
1233
1234 ++idle;
1235
1236 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1237 == ETIMEDOUT)
1238 {
1239 if (idle > max_idle)
1240 {
1241 --idle;
1242 X_UNLOCK (reqlock);
1243 X_LOCK (wrklock);
1244 --started;
1245 X_UNLOCK (wrklock);
1246 goto quit;
1247 }
1248
1249 /* we are allowed to idle, so do so without any timeout */
1250 X_COND_WAIT (reqwait, reqlock);
1251 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1252 }
1253
1254 --idle;
1255 }
1256
1257 --nready;
1258
1259 X_UNLOCK (reqlock);
1260
1261 errno = 0; /* strictly unnecessary */
1262
1263 if (!(req->flags & FLAG_CANCELLED))
1264 switch (req->type)
1265 {
1266 case REQ_READ: req->result = req->offs >= 0
1267 ? pread (req->int1, req->ptr1, req->size, req->offs)
1268 : read (req->int1, req->ptr1, req->size); break;
1269 case REQ_WRITE: req->result = req->offs >= 0
1270 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1271 : write (req->int1, req->ptr1, req->size); break;
1272
1273 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1274 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1275
1276 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1277 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1278 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1279
1280 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1281 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1282 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1283 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1284 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1285 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1286
1287 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1288 case REQ_CLOSE: req->result = aio_close (req->int1); break;
1289 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1290 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1291 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1292 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1293 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1294 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1295 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1296 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1297
1298 case REQ_SYNC: req->result = 0; sync (); break;
1299 case REQ_FSYNC: req->result = fsync (req->int1); break;
1300 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1301
1302 case REQ_READDIR: scandir_ (req, self); break;
1303
1304 case REQ_BUSY:
1305#ifdef _WIN32
1306 Sleep (req->nv1 * 1000.);
1307#else
1308 {
1309 struct timeval tv;
1310
1311 tv.tv_sec = req->nv1;
1312 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1313
1314 req->result = select (0, 0, 0, 0, &tv);
1315 }
1316#endif
1317 break;
1318
1319 case REQ_UTIME:
1320 case REQ_FUTIME:
1321 {
1322 struct timeval tv[2];
1323 struct timeval *times;
1324
1325 if (req->nv1 != -1. || req->nv2 != -1.)
1326 {
1327 tv[0].tv_sec = req->nv1;
1328 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1329 tv[1].tv_sec = req->nv2;
1330 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1331
1332 times = tv;
1333 }
1334 else
1335 times = 0;
1336
1337
1338 req->result = req->type == REQ_FUTIME
1339 ? futimes (req->int1, times)
1340 : utimes (req->ptr1, times);
1341 }
1342
1343 case REQ_GROUP:
1344 case REQ_NOP:
1345 break;
1346
1347 case REQ_QUIT:
1348 goto quit;
1349
1350 default:
1351 req->result = -1;
1352 break;
1353 }
1354
1355 req->errorno = errno;
1356
1357 X_LOCK (reslock);
1358
1359 ++npending;
1360
1361 if (!reqq_push (&res_queue, req))
1362 {
1363 /* write a dummy byte to the pipe so fh becomes ready */
1364 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1365
1366 /* optionally signal the main thread asynchronously */
1367 if (main_sig)
1368 pthread_kill (main_tid, main_sig);
1369 }
1370
1371 self->req = 0;
1372 worker_clear (self);
1373
1374 X_UNLOCK (reslock);
1375 }
1376
1377quit:
1378 X_LOCK (wrklock);
1379 worker_free (self);
1380 X_UNLOCK (wrklock);
1381
1382 return 0;
1383}
1384
1385/*****************************************************************************/
1386
1387static void atfork_prepare (void)
1388{
1389 X_LOCK (wrklock);
1390 X_LOCK (reqlock);
1391 X_LOCK (reslock);
1392#if !HAVE_PREADWRITE
1393 X_LOCK (preadwritelock);
1394#endif
1395#if !HAVE_READDIR_R
1396 X_LOCK (readdirlock);
1397#endif
1398}
1399
1400static void atfork_parent (void)
1401{
1402#if !HAVE_READDIR_R
1403 X_UNLOCK (readdirlock);
1404#endif
1405#if !HAVE_PREADWRITE
1406 X_UNLOCK (preadwritelock);
1407#endif
1408 X_UNLOCK (reslock);
1409 X_UNLOCK (reqlock);
1410 X_UNLOCK (wrklock);
1411}
1412
1413static void atfork_child (void)
1414{
1415 aio_req prv;
1416
1417 while (prv = reqq_shift (&req_queue))
1418 req_destroy (prv);
1419
1420 while (prv = reqq_shift (&res_queue))
1421 req_destroy (prv);
1422
1423 while (wrk_first.next != &wrk_first)
1424 {
1425 worker *wrk = wrk_first.next;
1426
1427 if (wrk->req)
1428 req_destroy (wrk->req);
1429
1430 worker_clear (wrk);
1431 worker_free (wrk);
1432 }
1433
1434 started = 0;
1435 idle = 0;
1436 nreqs = 0;
1437 nready = 0;
1438 npending = 0;
1439
1440 create_respipe ();
1441
1442 atfork_parent ();
1443} 812}
1444 813
1445#define dREQ \ 814#define dREQ \
815 SV *cb_cv; \
1446 aio_req req; \ 816 aio_req req; \
1447 int req_pri = next_pri; \ 817 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \ 818 next_pri = EIO_PRI_DEFAULT; \
1449 \ 819 \
1450 if (SvOK (callback) && !SvROK (callback)) \ 820 cb_cv = get_cb (callback); \
1451 croak ("callback must be undef or of reference type"); \
1452 \ 821 \
1453 Newz (0, req, 1, aio_cb); \ 822 Newz (0, req, 1, eio_req); \
1454 if (!req) \ 823 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \ 824 croak ("out of memory during eio_req allocation"); \
1456 \ 825 \
1457 req->callback = newSVsv (callback); \ 826 req->callback = SvREFCNT_inc (cb_cv); \
1458 req->pri = req_pri 827 req->pri = req_pri
1459 828
1460#define REQ_SEND \ 829#define REQ_SEND \
830 PUTBACK; \
1461 req_send (req); \ 831 req_submit (req); \
832 SPAGAIN; \
1462 \ 833 \
1463 if (GIMME_V != G_VOID) \ 834 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 835 XPUSHs (req_sv (req, aio_req_stash));
1465 836
837ecb_inline void
838req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839{
840 if (expect_false (SvROK (path)))
841 {
842 AV *av = (AV *)SvRV (path);
843 SV *wdob;
844
845 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
846 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848 path = AvARRAY (av)[1];
849 wdob = AvARRAY (av)[0];
850
851 if (SvOK (wdob))
852 {
853 *wd = SvAIO_WD (wdob);
854 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
855 }
856 else
857 *wd = EIO_INVALID_WD;
858 }
859
860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 break;
884
885 default:
886 req->type = type_path;
887 req_set_path1 (req, fh_or_path);
888 break;
889 }
890}
891
1466MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
1467 893
1468PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
1469 895
1470BOOT: 896BOOT:
1471{ 897{
898 static const struct {
899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
905 const_iv (EXDEV)
906 const_iv (ENOSYS)
907 const_iv (O_RDONLY)
908 const_iv (O_WRONLY)
909 const_iv (O_RDWR)
910 const_iv (O_CREAT)
911 const_iv (O_TRUNC)
912 const_iv (O_EXCL)
913 const_iv (O_APPEND)
914
915 const_iv (O_ASYNC)
916 const_iv (O_DIRECT)
917 const_iv (O_NOATIME)
918
919 const_iv (O_CLOEXEC)
920 const_iv (O_NOCTTY)
921 const_iv (O_NOFOLLOW)
922 const_iv (O_NONBLOCK)
923 const_iv (O_EXEC)
924 const_iv (O_SEARCH)
925 const_iv (O_DIRECTORY)
926 const_iv (O_DSYNC)
927 const_iv (O_RSYNC)
928 const_iv (O_SYNC)
929 const_iv (O_TTY_INIT)
930
931 const_iv (S_IFIFO)
932 const_iv (S_IFCHR)
933 const_iv (S_IFBLK)
934 const_iv (S_IFLNK)
935 const_iv (S_IFREG)
936 const_iv (S_IFDIR)
937 const_iv (S_IFWHT)
938 const_iv (S_IFSOCK)
939 const_iv (S_IFMT)
940
941 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
942 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
943 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
944 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
945 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
946 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
947
948 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
949 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
950 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
951 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
952 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
953
954 const_iv (ST_RDONLY)
955 const_iv (ST_NOSUID)
956 const_iv (ST_NODEV)
957 const_iv (ST_NOEXEC)
958 const_iv (ST_SYNCHRONOUS)
959 const_iv (ST_MANDLOCK)
960 const_iv (ST_WRITE)
961 const_iv (ST_APPEND)
962 const_iv (ST_IMMUTABLE)
963 const_iv (ST_NOATIME)
964 const_iv (ST_NODIRATIME)
965 const_iv (ST_RELATIME)
966
967 const_iv (PROT_NONE)
968 const_iv (PROT_EXEC)
969 const_iv (PROT_READ)
970 const_iv (PROT_WRITE)
971
972 /*const_iv (MAP_FIXED)*/
973 const_iv (MAP_PRIVATE)
974 const_iv (MAP_SHARED)
975 const_iv (MAP_ANONYMOUS)
976
977 /* linuxish */
978 const_iv (MAP_HUGETLB)
979 const_iv (MAP_LOCKED)
980 const_iv (MAP_NORESERVE)
981 const_iv (MAP_POPULATE)
982 const_iv (MAP_NONBLOCK)
983
984 const_eio (MCL_FUTURE)
985 const_eio (MCL_CURRENT)
986
987 const_eio (MS_ASYNC)
988 const_eio (MS_INVALIDATE)
989 const_eio (MS_SYNC)
990
991 const_eio (MT_MODIFY)
992
993 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
994 const_eio (SYNC_FILE_RANGE_WRITE)
995 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
996
997 const_eio (FALLOC_FL_KEEP_SIZE)
998
999 const_eio (READDIR_DENTS)
1000 const_eio (READDIR_DIRS_FIRST)
1001 const_eio (READDIR_STAT_ORDER)
1002 const_eio (READDIR_FOUND_UNKNOWN)
1003
1004 const_eio (DT_UNKNOWN)
1005 const_eio (DT_FIFO)
1006 const_eio (DT_CHR)
1007 const_eio (DT_DIR)
1008 const_eio (DT_BLK)
1009 const_eio (DT_REG)
1010 const_eio (DT_LNK)
1011 const_eio (DT_SOCK)
1012 const_eio (DT_WHT)
1013 };
1014
1472 stash = gv_stashpv ("IO::AIO", 1); 1015 aio_stash = gv_stashpv ("IO::AIO" , 1);
1016 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1017 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1018 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1473 1019
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1020 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1021 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1478 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1479#ifdef _WIN32
1480 X_MUTEX_CHECK (wrklock);
1481 X_MUTEX_CHECK (reslock);
1482 X_MUTEX_CHECK (reqlock);
1483 X_MUTEX_CHECK (reqwait);
1484 X_MUTEX_CHECK (preadwritelock);
1485 X_MUTEX_CHECK (readdirlock);
1486 1022
1487 X_COND_CHECK (reqwait); 1023 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1488#else
1489 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1490 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1491#endif
1492 1024
1493 create_respipe (); 1025 reinit ();
1494
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1496} 1026}
1497 1027
1498void 1028void
1029reinit ()
1030 PROTOTYPE:
1031
1032void
1499max_poll_reqs (int nreqs) 1033max_poll_reqs (unsigned int nreqs)
1500 PROTOTYPE: $ 1034 PROTOTYPE: $
1501 CODE: 1035 CODE:
1502 max_poll_reqs = nreqs; 1036 eio_set_max_poll_reqs (nreqs);
1503 1037
1504void 1038void
1505max_poll_time (double nseconds) 1039max_poll_time (double nseconds)
1506 PROTOTYPE: $ 1040 PROTOTYPE: $
1507 CODE: 1041 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 1042 eio_set_max_poll_time (nseconds);
1509 1043
1510void 1044void
1511min_parallel (int nthreads) 1045min_parallel (unsigned int nthreads)
1512 PROTOTYPE: $
1513
1514void
1515max_parallel (int nthreads)
1516 PROTOTYPE: $
1517
1518void
1519max_idle (int nthreads)
1520 PROTOTYPE: $ 1046 PROTOTYPE: $
1521 CODE: 1047 CODE:
1522 set_max_idle (nthreads); 1048 eio_set_min_parallel (nthreads);
1523 1049
1524int 1050void
1525max_outstanding (int maxreqs) 1051max_parallel (unsigned int nthreads)
1526 PROTOTYPE: $ 1052 PROTOTYPE: $
1527 CODE: 1053 CODE:
1528 RETVAL = max_outstanding; 1054 eio_set_max_parallel (nthreads);
1055
1056void
1057max_idle (unsigned int nthreads)
1058 PROTOTYPE: $
1059 CODE:
1060 eio_set_max_idle (nthreads);
1061
1062void
1063idle_timeout (unsigned int seconds)
1064 PROTOTYPE: $
1065 CODE:
1066 eio_set_idle_timeout (seconds);
1067
1068void
1069max_outstanding (unsigned int maxreqs)
1070 PROTOTYPE: $
1071 CODE:
1529 max_outstanding = maxreqs; 1072 max_outstanding = maxreqs;
1530 OUTPUT: 1073
1531 RETVAL 1074void
1075aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1076 PPCODE:
1077{
1078 dREQ;
1079
1080 req->type = EIO_WD_OPEN;
1081 req_set_path1 (req, pathname);
1082
1083 REQ_SEND;
1084}
1532 1085
1533void 1086void
1534aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1087aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1535 PROTOTYPE: $$$;$
1536 PPCODE: 1088 PPCODE:
1537{ 1089{
1538 dREQ; 1090 dREQ;
1539 1091
1540 req->type = REQ_OPEN; 1092 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 1093 req_set_path1 (req, pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 1094 req->int1 = flags;
1544 req->mode = mode; 1095 req->int2 = mode;
1545 1096
1546 REQ_SEND; 1097 REQ_SEND;
1547} 1098}
1548 1099
1549void 1100void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1101aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 ALIAS: 1102 ALIAS:
1553 aio_fsync = REQ_FSYNC 1103 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 1104 aio_fdatasync = EIO_FDATASYNC
1105 aio_syncfs = EIO_SYNCFS
1555 PPCODE: 1106 PPCODE:
1556{ 1107{
1108 int fd = s_fileno_croak (fh, 0);
1557 dREQ; 1109 dREQ;
1558 1110
1559 req->type = ix; 1111 req->type = ix;
1560 req->sv1 = newSVsv (fh); 1112 req->sv1 = newSVsv (fh);
1561 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1113 req->int1 = fd;
1562 1114
1563 REQ_SEND (req); 1115 REQ_SEND (req);
1564} 1116}
1565 1117
1566void 1118void
1119aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1120 PPCODE:
1121{
1122 int fd = s_fileno_croak (fh, 0);
1123 dREQ;
1124
1125 req->type = EIO_SYNC_FILE_RANGE;
1126 req->sv1 = newSVsv (fh);
1127 req->int1 = fd;
1128 req->offs = offset;
1129 req->size = nbytes;
1130 req->int2 = flags;
1131
1132 REQ_SEND (req);
1133}
1134
1135void
1136aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1137 PPCODE:
1138{
1139 int fd = s_fileno_croak (fh, 0);
1140 dREQ;
1141
1142 req->type = EIO_FALLOCATE;
1143 req->sv1 = newSVsv (fh);
1144 req->int1 = fd;
1145 req->int2 = mode;
1146 req->offs = offset;
1147 req->size = len;
1148
1149 REQ_SEND (req);
1150}
1151
1152void
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 1153aio_close (SV *fh, SV *callback=&PL_sv_undef)
1568 PROTOTYPE: $;$
1569 PPCODE: 1154 PPCODE:
1570{ 1155{
1156 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1157 int fd = s_fileno_croak (fh, 0);
1571 dREQ; 1158 dREQ;
1572 1159
1160 if (expect_false (close_fd < 0))
1161 {
1162 int pipefd [2];
1163
1164 if (
1165#ifdef _WIN32
1166 _pipe (pipefd, 1, _O_BINARY) < 0
1167#else
1168 pipe (pipefd) < 0
1169 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1170#endif
1171 || close (pipefd [1]) < 0
1172 )
1173 abort (); /*D*/
1174
1175 close_fd = pipefd [0];
1176 }
1177
1573 req->type = REQ_CLOSE; 1178 req->type = EIO_DUP2;
1179 req->int1 = close_fd;
1574 req->sv1 = newSVsv (fh); 1180 req->sv2 = newSVsv (fh);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1181 req->int2 = fd;
1576 1182
1577 REQ_SEND (req); 1183 REQ_SEND (req);
1578} 1184}
1579 1185
1580void 1186void
1581aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1187aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1582 ALIAS: 1188 ALIAS:
1583 aio_read = REQ_READ 1189 aio_read = EIO_READ
1584 aio_write = REQ_WRITE 1190 aio_write = EIO_WRITE
1585 PROTOTYPE: $$$$$;$
1586 PPCODE: 1191 PPCODE:
1587{ 1192{
1588 STRLEN svlen; 1193 STRLEN svlen;
1194 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1589 char *svptr = SvPVbyte (data, svlen); 1195 char *svptr = SvPVbyte (data, svlen);
1590 UV len = SvUV (length); 1196 UV len = SvUV (length);
1591 1197
1592 SvUPGRADE (data, SVt_PV);
1593 SvPOK_on (data);
1594
1595 if (dataoffset < 0) 1198 if (dataoffset < 0)
1596 dataoffset += svlen; 1199 dataoffset += svlen;
1597 1200
1598 if (dataoffset < 0 || dataoffset > svlen) 1201 if (dataoffset < 0 || dataoffset > svlen)
1599 croak ("dataoffset outside of data scalar"); 1202 croak ("dataoffset outside of data scalar");
1600 1203
1601 if (ix == REQ_WRITE) 1204 if (ix == EIO_WRITE)
1602 { 1205 {
1603 /* write: check length and adjust. */ 1206 /* write: check length and adjust. */
1604 if (!SvOK (length) || len + dataoffset > svlen) 1207 if (!SvOK (length) || len + dataoffset > svlen)
1605 len = svlen - dataoffset; 1208 len = svlen - dataoffset;
1606 } 1209 }
1607 else 1210 else
1608 { 1211 {
1609 /* read: grow scalar as necessary */ 1212 /* read: check type and grow scalar as necessary */
1213 SvUPGRADE (data, SVt_PV);
1610 svptr = SvGROW (data, len + dataoffset + 1); 1214 svptr = SvGROW (data, len + dataoffset + 1);
1611 } 1215 }
1612 1216
1613 if (len < 0)
1614 croak ("length must not be negative");
1615
1616 { 1217 {
1617 dREQ; 1218 dREQ;
1618 1219
1619 req->type = ix; 1220 req->type = ix;
1620 req->sv1 = newSVsv (fh); 1221 req->sv1 = newSVsv (fh);
1621 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1222 req->int1 = fd;
1622 : IoOFP (sv_2io (fh)));
1623 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1223 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1624 req->size = len; 1224 req->size = len;
1625 req->sv2 = SvREFCNT_inc (data); 1225 req->sv2 = SvREFCNT_inc (data);
1626 req->ptr1 = (char *)svptr + dataoffset; 1226 req->ptr2 = (char *)svptr + dataoffset;
1627 req->stroffset = dataoffset; 1227 req->stroffset = dataoffset;
1628 1228
1629 if (!SvREADONLY (data)) 1229 if (!SvREADONLY (data))
1630 { 1230 {
1631 SvREADONLY_on (data); 1231 SvREADONLY_on (data);
… …
1635 REQ_SEND; 1235 REQ_SEND;
1636 } 1236 }
1637} 1237}
1638 1238
1639void 1239void
1640aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1240aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1641 PROTOTYPE: $$;$ 1241 ALIAS:
1242 aio_readlink = EIO_READLINK
1243 aio_realpath = EIO_REALPATH
1642 PPCODE: 1244 PPCODE:
1643{ 1245{
1644 SV *data;
1645 dREQ; 1246 dREQ;
1646 1247
1647 data = newSV (NAME_MAX);
1648 SvPOK_on (data);
1649
1650 req->type = REQ_READLINK; 1248 req->type = ix;
1651 req->sv1 = newSVsv (path); 1249 req_set_path1 (req, pathname);
1652 req->ptr2 = SvPVbyte_nolen (req->sv1);
1653 req->sv2 = data;
1654 req->ptr1 = SvPVbyte_nolen (data);
1655 1250
1656 REQ_SEND; 1251 REQ_SEND;
1657} 1252}
1658 1253
1659void 1254void
1660aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1255aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$$;$
1662 PPCODE: 1256 PPCODE:
1663{ 1257{
1258 int ifd = s_fileno_croak (in_fh , 0);
1259 int ofd = s_fileno_croak (out_fh, 1);
1664 dREQ; 1260 dREQ;
1665 1261
1666 req->type = REQ_SENDFILE; 1262 req->type = EIO_SENDFILE;
1667 req->sv1 = newSVsv (out_fh); 1263 req->sv1 = newSVsv (out_fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1264 req->int1 = ofd;
1669 req->sv2 = newSVsv (in_fh); 1265 req->sv2 = newSVsv (in_fh);
1670 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1266 req->int2 = ifd;
1671 req->offs = SvVAL64 (in_offset); 1267 req->offs = in_offset;
1672 req->size = length; 1268 req->size = length;
1673 1269
1674 REQ_SEND; 1270 REQ_SEND;
1675} 1271}
1676 1272
1677void 1273void
1678aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1274aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1679 PROTOTYPE: $$$;$
1680 PPCODE: 1275 PPCODE:
1681{ 1276{
1277 int fd = s_fileno_croak (fh, 0);
1682 dREQ; 1278 dREQ;
1683 1279
1684 req->type = REQ_READAHEAD; 1280 req->type = EIO_READAHEAD;
1685 req->sv1 = newSVsv (fh); 1281 req->sv1 = newSVsv (fh);
1686 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1282 req->int1 = fd;
1687 req->offs = SvVAL64 (offset); 1283 req->offs = offset;
1688 req->size = length; 1284 req->size = length;
1689 1285
1690 REQ_SEND; 1286 REQ_SEND;
1691} 1287}
1692 1288
1693void 1289void
1694aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1290aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1695 ALIAS: 1291 ALIAS:
1696 aio_stat = REQ_STAT 1292 aio_stat = EIO_STAT
1697 aio_lstat = REQ_LSTAT 1293 aio_lstat = EIO_LSTAT
1294 aio_statvfs = EIO_STATVFS
1698 PPCODE: 1295 PPCODE:
1699{ 1296{
1700 dREQ; 1297 dREQ;
1701 1298
1702 req->ptr2 = malloc (sizeof (Stat_t));
1703 if (!req->ptr2)
1704 {
1705 req_destroy (req);
1706 croak ("out of memory during aio_stat statdata allocation");
1707 }
1708
1709 req->flags |= FLAG_PTR2_FREE;
1710 req->sv1 = newSVsv (fh_or_path); 1299 req->sv1 = newSVsv (fh_or_path);
1711 1300 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1712 if (SvPOK (fh_or_path))
1713 {
1714 req->type = ix;
1715 req->ptr1 = SvPVbyte_nolen (req->sv1);
1716 }
1717 else
1718 {
1719 req->type = REQ_FSTAT;
1720 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1721 }
1722
1723 REQ_SEND; 1301 REQ_SEND;
1724} 1302}
1303
1304UV
1305major (UV dev)
1306 ALIAS:
1307 minor = 1
1308 CODE:
1309 RETVAL = ix ? major (dev) : minor (dev);
1310 OUTPUT:
1311 RETVAL
1312
1313UV
1314makedev (UV maj, UV min)
1315 CODE:
1316 RETVAL = makedev (maj, min);
1317 OUTPUT:
1318 RETVAL
1725 1319
1726void 1320void
1727aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1321aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1728 PPCODE: 1322 PPCODE:
1729{ 1323{
1730 dREQ; 1324 dREQ;
1731 1325
1732 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1326 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1733 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1327 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1734 req->sv1 = newSVsv (fh_or_path); 1328 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1735
1736 if (SvPOK (fh_or_path))
1737 {
1738 req->type = REQ_UTIME;
1739 req->ptr1 = SvPVbyte_nolen (req->sv1);
1740 }
1741 else
1742 {
1743 req->type = REQ_FUTIME;
1744 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1745 }
1746 1329
1747 REQ_SEND; 1330 REQ_SEND;
1748} 1331}
1749 1332
1750void 1333void
1751aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1334aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1752 PPCODE: 1335 PPCODE:
1753{ 1336{
1754 dREQ; 1337 dREQ;
1755 1338
1756 req->sv1 = newSVsv (fh_or_path);
1757 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1339 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1758 1340 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1759 if (SvPOK (fh_or_path))
1760 {
1761 req->type = REQ_TRUNCATE;
1762 req->ptr1 = SvPVbyte_nolen (req->sv1);
1763 }
1764 else
1765 {
1766 req->type = REQ_FTRUNCATE;
1767 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1768 }
1769 1341
1770 REQ_SEND; 1342 REQ_SEND;
1771} 1343}
1772 1344
1773void 1345void
1774aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1346aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1775 PPCODE: 1347 PPCODE:
1776{ 1348{
1777 dREQ; 1349 dREQ;
1778 1350
1779 req->mode = mode; 1351 req->int2 = mode;
1780 req->sv1 = newSVsv (fh_or_path); 1352 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1781
1782 if (SvPOK (fh_or_path))
1783 {
1784 req->type = REQ_CHMOD;
1785 req->ptr1 = SvPVbyte_nolen (req->sv1);
1786 }
1787 else
1788 {
1789 req->type = REQ_FCHMOD;
1790 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1791 }
1792 1353
1793 REQ_SEND; 1354 REQ_SEND;
1794} 1355}
1795 1356
1796void 1357void
… …
1799{ 1360{
1800 dREQ; 1361 dREQ;
1801 1362
1802 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1363 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1803 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1364 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1804 req->sv1 = newSVsv (fh_or_path); 1365 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1805 1366
1806 if (SvPOK (fh_or_path)) 1367 REQ_SEND;
1807 { 1368}
1808 req->type = REQ_CHOWN; 1369
1809 req->ptr1 = SvPVbyte_nolen (req->sv1); 1370void
1810 } 1371aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1811 else 1372 PPCODE:
1812 { 1373{
1813 req->type = REQ_FCHOWN; 1374 dREQ;
1814 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1375
1815 } 1376 req->type = EIO_READDIR;
1377 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1378
1379 if (flags & EIO_READDIR_DENTS)
1380 req->int1 |= EIO_READDIR_CUSTOM2;
1381
1382 req_set_path1 (req, pathname);
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1389 PPCODE:
1390{
1391 dREQ;
1392
1393 req->type = EIO_MKDIR;
1394 req->int2 = mode;
1395 req_set_path1 (req, pathname);
1816 1396
1817 REQ_SEND; 1397 REQ_SEND;
1818} 1398}
1819 1399
1820void 1400void
1821aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1401aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1822 ALIAS: 1402 ALIAS:
1823 aio_unlink = REQ_UNLINK 1403 aio_unlink = EIO_UNLINK
1824 aio_rmdir = REQ_RMDIR 1404 aio_rmdir = EIO_RMDIR
1825 aio_readdir = REQ_READDIR 1405 aio_readdir = EIO_READDIR
1826 PPCODE: 1406 PPCODE:
1827{ 1407{
1828 dREQ; 1408 dREQ;
1829 1409
1830 req->type = ix; 1410 req->type = ix;
1831 req->sv1 = newSVsv (pathname); 1411 req_set_path1 (req, pathname);
1832 req->ptr1 = SvPVbyte_nolen (req->sv1);
1833 1412
1834 REQ_SEND; 1413 REQ_SEND;
1835} 1414}
1836 1415
1837void 1416void
1417aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1418 ALIAS:
1419 aio_link = EIO_LINK
1420 aio_symlink = EIO_SYMLINK
1421 aio_rename = EIO_RENAME
1422 PPCODE:
1423{
1424 dREQ;
1425 eio_wd wd2 = 0;
1426
1427 req->type = ix;
1428 req_set_path1 (req, oldpath);
1429 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1430 req->int3 = (long)wd2;
1431
1432 REQ_SEND;
1433}
1434
1435void
1838aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1436aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1839 PPCODE: 1437 PPCODE:
1840{ 1438{
1841 dREQ; 1439 dREQ;
1842 1440
1843 req->type = REQ_MKDIR; 1441 req->type = EIO_MKNOD;
1844 req->sv1 = newSVsv (pathname);
1845 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 req->mode = mode; 1442 req->int2 = (mode_t)mode;
1847 1443 req->offs = dev;
1848 REQ_SEND; 1444 req_set_path1 (req, pathname);
1849}
1850
1851void
1852aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1853 ALIAS:
1854 aio_link = REQ_LINK
1855 aio_symlink = REQ_SYMLINK
1856 aio_rename = REQ_RENAME
1857 PPCODE:
1858{
1859 dREQ;
1860
1861 req->type = ix;
1862 req->sv2 = newSVsv (oldpath);
1863 req->ptr2 = SvPVbyte_nolen (req->sv2);
1864 req->sv1 = newSVsv (newpath);
1865 req->ptr1 = SvPVbyte_nolen (req->sv1);
1866 1445
1867 REQ_SEND; 1446 REQ_SEND;
1868} 1447}
1869 1448
1870void 1449void
1871aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1450aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1451 ALIAS:
1452 aio_mtouch = EIO_MTOUCH
1453 aio_msync = EIO_MSYNC
1454 PPCODE:
1455{
1456 STRLEN svlen;
1457 char *svptr = SvPVbyte (data, svlen);
1458 UV len = SvUV (length);
1459
1460 if (offset < 0)
1461 offset += svlen;
1462
1463 if (offset < 0 || offset > svlen)
1464 croak ("offset outside of scalar");
1465
1466 if (!SvOK (length) || len + offset > svlen)
1467 len = svlen - offset;
1468
1469 {
1470 dREQ;
1471
1472 req->type = ix;
1473 req->sv2 = SvREFCNT_inc (data);
1474 req->ptr2 = (char *)svptr + offset;
1475 req->size = len;
1476 req->int1 = flags;
1477
1478 REQ_SEND;
1479 }
1480}
1481
1482void
1483aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1484 PPCODE:
1485{
1486 STRLEN svlen;
1487 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length);
1489
1490 if (offset < 0)
1491 offset += svlen;
1492
1493 if (offset < 0 || offset > svlen)
1494 croak ("offset outside of scalar");
1495
1496 if (!SvOK (length) || len + offset > svlen)
1497 len = svlen - offset;
1498
1499 {
1500 dREQ;
1501
1502 req->type = EIO_MLOCK;
1503 req->sv2 = SvREFCNT_inc (data);
1504 req->ptr2 = (char *)svptr + offset;
1505 req->size = len;
1506
1507 REQ_SEND;
1508 }
1509}
1510
1511void
1512aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1517 req->type = EIO_MLOCKALL;
1518 req->int1 = flags;
1519
1520 REQ_SEND;
1521}
1522
1523void
1524aio_busy (double delay, SV *callback=&PL_sv_undef)
1872 PPCODE: 1525 PPCODE:
1873{ 1526{
1874 dREQ; 1527 dREQ;
1875 1528
1876 req->type = REQ_MKNOD; 1529 req->type = EIO_BUSY;
1877 req->sv1 = newSVsv (pathname); 1530 req->nv1 = delay < 0. ? 0. : delay;
1878 req->ptr1 = SvPVbyte_nolen (req->sv1); 1531
1879 req->mode = (mode_t)mode;
1880 req->offs = dev;
1881
1882 REQ_SEND; 1532 REQ_SEND;
1883} 1533}
1884 1534
1885void 1535void
1886aio_busy (double delay, SV *callback=&PL_sv_undef) 1536aio_group (SV *callback=&PL_sv_undef)
1887 PPCODE: 1537 PPCODE:
1888{ 1538{
1889 dREQ; 1539 dREQ;
1890 1540
1891 req->type = REQ_BUSY;
1892 req->nv1 = delay < 0. ? 0. : delay;
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_group (SV *callback=&PL_sv_undef)
1899 PROTOTYPE: ;$
1900 PPCODE:
1901{
1902 dREQ;
1903
1904 req->type = REQ_GROUP; 1541 req->type = EIO_GROUP;
1905 1542
1906 req_send (req); 1543 req_submit (req);
1907 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1544 XPUSHs (req_sv (req, aio_grp_stash));
1908} 1545}
1909 1546
1910void 1547void
1911aio_nop (SV *callback=&PL_sv_undef) 1548aio_nop (SV *callback=&PL_sv_undef)
1912 ALIAS: 1549 ALIAS:
1913 aio_nop = REQ_NOP 1550 aio_nop = EIO_NOP
1914 aio_sync = REQ_SYNC 1551 aio_sync = EIO_SYNC
1915 PPCODE: 1552 PPCODE:
1916{ 1553{
1917 dREQ; 1554 dREQ;
1918 1555
1919 req->type = ix; 1556 req->type = ix;
… …
1921 REQ_SEND; 1558 REQ_SEND;
1922} 1559}
1923 1560
1924int 1561int
1925aioreq_pri (int pri = 0) 1562aioreq_pri (int pri = 0)
1926 PROTOTYPE: ;$
1927 CODE: 1563 CODE:
1928 RETVAL = next_pri - PRI_BIAS; 1564 RETVAL = next_pri;
1929 if (items > 0) 1565 if (items > 0)
1930 { 1566 {
1931 if (pri < PRI_MIN) pri = PRI_MIN; 1567 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1932 if (pri > PRI_MAX) pri = PRI_MAX; 1568 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1933 next_pri = pri + PRI_BIAS; 1569 next_pri = pri;
1934 } 1570 }
1935 OUTPUT: 1571 OUTPUT:
1936 RETVAL 1572 RETVAL
1937 1573
1938void 1574void
1939aioreq_nice (int nice = 0) 1575aioreq_nice (int nice = 0)
1940 CODE: 1576 CODE:
1941 nice = next_pri - nice; 1577 nice = next_pri - nice;
1942 if (nice < PRI_MIN) nice = PRI_MIN; 1578 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1943 if (nice > PRI_MAX) nice = PRI_MAX; 1579 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1944 next_pri = nice + PRI_BIAS; 1580 next_pri = nice;
1945 1581
1946void 1582void
1947flush () 1583flush ()
1948 PROTOTYPE:
1949 CODE: 1584 CODE:
1950 while (nreqs) 1585 while (eio_nreqs ())
1951 { 1586 {
1952 poll_wait (); 1587 poll_wait ();
1953 poll_cb (); 1588 poll_cb ();
1954 } 1589 }
1955 1590
1956int 1591int
1957poll() 1592poll ()
1958 PROTOTYPE:
1959 CODE: 1593 CODE:
1960 poll_wait (); 1594 poll_wait ();
1961 RETVAL = poll_cb (); 1595 RETVAL = poll_cb ();
1962 OUTPUT: 1596 OUTPUT:
1963 RETVAL 1597 RETVAL
1964 1598
1965int 1599int
1966poll_fileno() 1600poll_fileno ()
1967 PROTOTYPE:
1968 CODE: 1601 CODE:
1969 RETVAL = respipe [0]; 1602 RETVAL = s_epipe_fd (&respipe);
1970 OUTPUT: 1603 OUTPUT:
1971 RETVAL 1604 RETVAL
1972 1605
1973int 1606int
1974poll_cb(...) 1607poll_cb (...)
1975 PROTOTYPE: 1608 PROTOTYPE:
1976 CODE: 1609 CODE:
1977 RETVAL = poll_cb (); 1610 RETVAL = poll_cb ();
1978 OUTPUT: 1611 OUTPUT:
1979 RETVAL 1612 RETVAL
1980 1613
1981void 1614void
1982poll_wait() 1615poll_wait ()
1983 PROTOTYPE:
1984 CODE: 1616 CODE:
1985 poll_wait (); 1617 poll_wait ();
1986 1618
1987void
1988setsig (int signum = SIGIO)
1989 PROTOTYPE: ;$
1990 CODE:
1991{
1992 if (block_sig_level)
1993 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1994
1995 X_LOCK (reslock);
1996 main_tid = pthread_self ();
1997 main_sig = signum;
1998 X_UNLOCK (reslock);
1999
2000 if (main_sig && npending)
2001 pthread_kill (main_tid, main_sig);
2002}
2003
2004void
2005aio_block (SV *cb)
2006 PROTOTYPE: &
2007 PPCODE:
2008{
2009 int count;
2010
2011 block_sig ();
2012 PUSHMARK (SP);
2013 PUTBACK;
2014 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
2015 unblock_sig ();
2016
2017 if (SvTRUE (ERRSV))
2018 croak (0);
2019
2020 XSRETURN (count);
2021}
2022
2023int 1619int
2024nreqs() 1620nreqs ()
2025 PROTOTYPE:
2026 CODE: 1621 CODE:
2027 RETVAL = nreqs; 1622 RETVAL = eio_nreqs ();
2028 OUTPUT: 1623 OUTPUT:
2029 RETVAL 1624 RETVAL
2030 1625
2031int 1626int
2032nready() 1627nready ()
2033 PROTOTYPE:
2034 CODE: 1628 CODE:
2035 RETVAL = get_nready (); 1629 RETVAL = eio_nready ();
2036 OUTPUT: 1630 OUTPUT:
2037 RETVAL 1631 RETVAL
2038 1632
2039int 1633int
2040npending() 1634npending ()
2041 PROTOTYPE:
2042 CODE: 1635 CODE:
2043 RETVAL = get_npending (); 1636 RETVAL = eio_npending ();
2044 OUTPUT: 1637 OUTPUT:
2045 RETVAL 1638 RETVAL
2046 1639
2047int 1640int
2048nthreads() 1641nthreads ()
2049 PROTOTYPE:
2050 CODE: 1642 CODE:
2051 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1643 RETVAL = eio_nthreads ();
2052 RETVAL = started;
2053 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2054 OUTPUT: 1644 OUTPUT:
2055 RETVAL 1645 RETVAL
2056 1646
1647int
1648fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1649 CODE:
1650 RETVAL = posix_fadvise (fh, offset, length, advice);
1651 OUTPUT:
1652 RETVAL
1653
1654IV
1655sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1656 CODE:
1657 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1658 OUTPUT:
1659 RETVAL
1660
1661void
1662mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1663 PPCODE:
1664 sv_unmagic (scalar, MMAP_MAGIC);
1665{
1666 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1667 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1668 if (addr == (void *)-1)
1669 XSRETURN_NO;
1670
1671 sv_force_normal (scalar);
1672
1673 /* we store the length in mg_obj, as namlen is I32 :/ */
1674 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1675 ->mg_obj = (SV *)length;
1676
1677 SvUPGRADE (scalar, SVt_PV); /* nop... */
1678
1679 if (!(prot & PROT_WRITE))
1680 SvREADONLY_on (scalar);
1681
1682 if (SvLEN (scalar))
1683 Safefree (SvPVX (scalar));
1684
1685 SvPVX (scalar) = (char *)addr;
1686 SvCUR_set (scalar, length);
1687 SvLEN_set (scalar, 0);
1688 SvPOK_only (scalar);
1689
1690 XSRETURN_YES;
1691}
1692
1693void
1694munmap (SV *scalar)
1695 CODE:
1696 sv_unmagic (scalar, MMAP_MAGIC);
1697
1698int
1699madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1700 ALIAS:
1701 mprotect = 1
1702 CODE:
1703{
1704 STRLEN svlen;
1705 void *addr = SvPVbyte (scalar, svlen);
1706 size_t len = SvUV (length);
1707
1708 if (offset < 0)
1709 offset += svlen;
1710
1711 if (offset < 0 || offset > svlen)
1712 croak ("offset outside of scalar");
1713
1714 if (!SvOK (length) || len + offset > svlen)
1715 len = svlen - offset;
1716
1717 addr = (void *)(((intptr_t)addr) + offset);
1718 eio_page_align (&addr, &len);
1719
1720 switch (ix)
1721 {
1722 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1723 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1724 }
1725}
1726 OUTPUT:
1727 RETVAL
1728
1729int
1730munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1731 CODE:
1732{
1733 STRLEN svlen;
1734 void *addr = SvPVbyte (scalar, svlen);
1735 size_t len = SvUV (length);
1736
1737 if (offset < 0)
1738 offset += svlen;
1739
1740 if (offset < 0 || offset > svlen)
1741 croak ("offset outside of scalar");
1742
1743 if (!SvOK (length) || len + offset > svlen)
1744 len = svlen - offset;
1745
1746 addr = (void *)(((intptr_t)addr) + offset);
1747 eio_page_align (&addr, &len);
1748#if _POSIX_MEMLOCK_RANGE
1749 RETVAL = munlock (addr, len);
1750#else
1751 RETVAL = ((errno = ENOSYS), -1);
1752#endif
1753}
1754 OUTPUT:
1755 RETVAL
1756
1757int
1758munlockall ()
1759 CODE:
1760#if _POSIX_MEMLOCK
1761 munlockall ();
1762#else
1763 RETVAL = -1;
1764 errno = ENOSYS;
1765#endif
1766 OUTPUT:
1767 RETVAL
1768
1769void _on_next_submit (SV *cb)
1770 CODE:
1771 SvREFCNT_dec (on_next_submit);
1772 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1773
2057PROTOTYPES: DISABLE 1774PROTOTYPES: DISABLE
2058 1775
1776MODULE = IO::AIO PACKAGE = IO::AIO::WD
1777
1778BOOT:
1779{
1780 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1781 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1782}
1783
1784void
1785DESTROY (SV *self)
1786 CODE:
1787{
1788 aio_wd wd = SvAIO_WD (self);
1789#if HAVE_AT
1790 SV *callback = &PL_sv_undef;
1791 dREQ; /* clobbers next_pri :/ */
1792 req->type = EIO_WD_CLOSE;
1793 req->wd = wd;
1794 REQ_SEND;
1795#else
1796 eio_wd_close_sync (wd);
1797#endif
1798}
1799
2059MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1800MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2060 1801
2061void 1802void
2062cancel (aio_req_ornot req) 1803cancel (aio_req_ornot req)
2063 CODE: 1804 CODE:
2064 req_cancel (req); 1805 eio_cancel (req);
2065 1806
2066void 1807void
2067cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1808cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2068 CODE: 1809 PPCODE:
1810{
1811 if (GIMME_V != G_VOID)
1812 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1813
1814 if (items > 1)
1815 {
1816 SV *cb_cv =get_cb (callback);
1817
2069 SvREFCNT_dec (req->callback); 1818 SvREFCNT_dec (req->callback);
2070 req->callback = newSVsv (callback); 1819 req->callback = SvREFCNT_inc (cb_cv);
1820 }
1821}
2071 1822
2072MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1823MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2073 1824
2074void 1825void
2075add (aio_req grp, ...) 1826add (aio_req grp, ...)
2076 PPCODE: 1827 PPCODE:
2077{ 1828{
2078 int i; 1829 int i;
2079 aio_req req;
2080
2081 if (main_sig && !block_sig_level)
2082 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2083 1830
2084 if (grp->int1 == 2) 1831 if (grp->int1 == 2)
2085 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1832 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2086 1833
2087 for (i = 1; i < items; ++i ) 1834 for (i = 1; i < items; ++i )
2088 { 1835 {
1836 aio_req req;
1837
2089 if (GIMME_V != G_VOID) 1838 if (GIMME_V != G_VOID)
2090 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1839 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2091 1840
2092 req = SvAIO_REQ (ST (i)); 1841 req = SvAIO_REQ (ST (i));
2093 1842
2094 if (req) 1843 if (req)
2095 { 1844 eio_grp_add (grp, req);
2096 ++grp->size;
2097 req->grp = grp;
2098
2099 req->grp_prev = 0;
2100 req->grp_next = grp->grp_first;
2101
2102 if (grp->grp_first)
2103 grp->grp_first->grp_prev = req;
2104
2105 grp->grp_first = req;
2106 }
2107 } 1845 }
2108} 1846}
2109 1847
2110void 1848void
2111cancel_subs (aio_req_ornot req) 1849cancel_subs (aio_req_ornot req)
… …
2120 AV *av; 1858 AV *av;
2121 1859
2122 grp->errorno = errno; 1860 grp->errorno = errno;
2123 1861
2124 av = newAV (); 1862 av = newAV ();
1863 av_extend (av, items - 1);
2125 1864
2126 for (i = 1; i < items; ++i ) 1865 for (i = 1; i < items; ++i )
2127 av_push (av, newSVsv (ST (i))); 1866 av_push (av, newSVsv (ST (i)));
2128 1867
2129 SvREFCNT_dec (grp->sv1); 1868 SvREFCNT_dec (grp->sv1);
… …
2136 grp->errorno = errorno; 1875 grp->errorno = errorno;
2137 1876
2138void 1877void
2139limit (aio_req grp, int limit) 1878limit (aio_req grp, int limit)
2140 CODE: 1879 CODE:
2141 grp->int2 = limit; 1880 eio_grp_limit (grp, limit);
2142 aio_grp_feed (grp);
2143 1881
2144void 1882void
2145feed (aio_req grp, SV *callback=&PL_sv_undef) 1883feed (aio_req grp, SV *callback=&PL_sv_undef)
2146 CODE: 1884 CODE:
2147{ 1885{
2148 SvREFCNT_dec (grp->sv2); 1886 SvREFCNT_dec (grp->sv2);
2149 grp->sv2 = newSVsv (callback); 1887 grp->sv2 = newSVsv (callback);
1888 grp->feed = aio_grp_feed;
2150 1889
2151 if (grp->int2 <= 0) 1890 if (grp->int2 <= 0)
2152 grp->int2 = 2; 1891 grp->int2 = 2;
2153 1892
2154 aio_grp_feed (grp); 1893 eio_grp_limit (grp, grp->int2);
2155} 1894}
2156 1895

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