ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.114 by root, Sat Apr 26 12:00:23 2008 UTC vs.
Revision 1.234 by root, Thu Jun 25 15:20:11 2015 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/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
18#ifdef _WIN32 46#ifdef _WIN32
19 47
20# define SIGIO 0 48 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 49
22#undef malloc 50 #undef malloc
23#undef free 51 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 52 #undef open
27# undef read 53 #undef read
28# undef write 54 #undef write
29# undef send 55 #undef send
30# undef recv 56 #undef recv
31# undef stat 57 #undef stat
58 #undef lstat
32# undef fstat 59 #undef fstat
33# define lstat stat
34# undef truncate 60 #undef truncate
35# undef ftruncate 61 #undef ftruncate
36# undef open 62 #undef open
63 #undef link
37# undef close 64 #undef close
38# undef unlink 65 #undef unlink
66 #undef mkdir
39# undef rmdir 67 #undef rmdir
40# undef rename 68 #undef rename
41# undef lseek 69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
42 79
43# define chown(a,b,c) (errno = ENOSYS, -1) 80 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 82
57#else 83#else
58 84
59# include "autoconf/config.h"
60# include <sys/time.h> 85 #include <sys/time.h>
61# include <sys/select.h> 86 #include <sys/select.h>
62# include <unistd.h> 87 #include <unistd.h>
63# include <utime.h> 88 #include <utime.h>
64# include <signal.h> 89 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 90
67#endif 91 #define EIO_STRUCT_STAT Stat_t
68 92
69#if HAVE_SENDFILE 93#endif
70# if __linux 94
71# include <sys/sendfile.h> 95/*****************************************************************************/
72# elif __freebsd 96
73# include <sys/socket.h> 97#if __GNUC__ >= 3
74# include <sys/uio.h> 98# define expect(expr,value) __builtin_expect ((expr),(value))
75# elif __hpux 99#else
76# include <sys/socket.h> 100# define expect(expr,value) (expr)
77# elif __solaris /* not yet */ 101#endif
78# include <sys/sendfile.h> 102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
79# else 144# else
80# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 146# endif
82#endif 147#endif
83 148
84/* number of seconds after which idle threads exit */ 149/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 150#include "def0.h"
86 151
87/* used for struct dirent, AIX doesn't provide it */ 152#ifndef makedev
88#ifndef NAME_MAX 153# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 154#endif
91 155#ifndef major
92/* buffer size for various temporary buffers */ 156# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
101 161
102static HV *stash; 162#if PAGESIZE <= 0
163# define PAGESIZE sysconf (_SC_PAGESIZE)
164#endif
103 165
104#define dBUF \ 166/*****************************************************************************/
105 char *aio_buf; \
106 X_LOCK (wrklock); \
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
108 X_UNLOCK (wrklock); \
109 if (!aio_buf) \
110 return -1;
111 167
112typedef SV SV8; /* byte-sv, used for argument-checking */ 168static void
113 169fiemap (eio_req *req)
114enum {
115 REQ_QUIT,
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};
131
132#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134
135typedef struct aio_cb
136{ 170{
137 struct aio_cb *volatile next; 171 req->result = -1;
138 172
139 SV *callback; 173#if HAVE_FIEMAP
140 SV *sv1, *sv2; 174 /* assume some c99 */
141 void *ptr1, *ptr2; 175 struct fiemap *fiemap = 0;
142 off_t offs; 176 size_t end_offset;
143 size_t size; 177 int count = req->int3;
144 ssize_t result;
145 double nv1, nv2;
146 178
147 STRLEN stroffset; 179 req->flags |= EIO_FLAG_PTR1_FREE;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 180
153 unsigned char flags; 181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
154 unsigned char pri; 182 /* increase in 3.5kb steps */
183 if (count < 0)
184 count = 8;
155 185
156 SV *self; /* the perl counterpart of this request, if any */ 186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 187 errno = ENOMEM;
158} aio_cb; 188 if (!fiemap)
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;
167typedef aio_cb *aio_req_ornot;
168
169enum {
170 PRI_MIN = -4,
171 PRI_MAX = 4,
172
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
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; 189 return;
200 190
201 if (!main_sig) 191 req->ptr1 = fiemap;
192
193 fiemap->fm_start = req->offs;
194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
197
198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 199 return;
203 200
204 sigemptyset (&ss); 201 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 202 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 204 goto done;
208 205
209void unblock_sig (void) 206 /* else we have to loop -
210{ 207 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 208 * number of extents needed, but linux often feels like not returning all
209 * extents, without telling us it left any out. this complicates
210 * this quite a bit.
211 */
212 212
213 if (--block_sig_level) 213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 214
216 if (!main_sig) 215 for (;;)
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 { 216 {
249 closedir (wrk->dirp); 217 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
250 wrk->dirp = 0; 218 char scratch[3072];
251 } 219 struct fiemap *incmap = (struct fiemap *)scratch;
252 220
253 if (wrk->dbuf) 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 224 incmap->fm_flags = fiemap->fm_flags;
257 } 225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 226
260static void worker_free (worker *wrk) 227 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
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; 228 return;
355 229
356 --q->size; 230 if (!incmap->fm_mapped_extents)
231 goto done;
357 232
358 for (pri = NUM_PRI; pri--; ) 233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 235 errno = ENOMEM;
361
362 if (req) 236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 242 {
364 if (!(q->qs[pri] = req->next)) 243 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 244
367 return req; 245 if (e->fe_logical + e->fe_length >= end_offset)
246 goto done;
247
248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
368 } 253 }
369 } 254 }
370 255
371 abort (); 256done:
372} 257 req->result = 0;
373 258
374static int poll_cb (void); 259#else
375static int req_invoke (aio_req req); 260 errno = ENOSYS;
261#endif
262}
263
264/*****************************************************************************/
265
266enum {
267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
268};
269
270typedef eio_req *aio_req;
271typedef eio_req *aio_req_ornot;
272typedef eio_wd aio_wd;
273
274static SV *on_next_submit;
275static int next_pri = EIO_PRI_DEFAULT;
276static int max_outstanding;
277
278static s_epipe respipe;
279
376static void req_destroy (aio_req req); 280static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 281static void req_cancel (aio_req req);
378 282
283static void
284want_poll (void)
285{
286 /* write a dummy byte to the pipe so fh becomes ready */
287 s_epipe_signal (&respipe);
288}
289
290static void
291done_poll (void)
292{
293 /* read any signals sent by the worker threads */
294 s_epipe_drain (&respipe);
295}
296
379/* must be called at most once */ 297/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 298static SV *
299req_sv (aio_req req, HV *stash)
381{ 300{
382 if (!req->self) 301 if (!req->self)
383 { 302 {
384 req->self = (SV *)newHV (); 303 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 305 }
387 306
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 308}
390 309
391static aio_req SvAIO_REQ (SV *sv) 310static SV *
311newSVaio_wd (aio_wd wd)
312{
313 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
314}
315
316static aio_req
317SvAIO_REQ (SV *sv)
392{ 318{
393 MAGIC *mg; 319 MAGIC *mg;
394 320
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 321 if (!SvROK (sv)
322 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
323 || (SvSTASH (SvRV (sv)) != aio_grp_stash
324 && SvSTASH (SvRV (sv)) != aio_req_stash
325 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 326 croak ("object of class IO::AIO::REQ expected");
397 327
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 329
400 return mg ? (aio_req)mg->mg_ptr : 0; 330 return mg ? (aio_req)mg->mg_ptr : 0;
401} 331}
402 332
333static aio_wd
334SvAIO_WD (SV *sv)
335{
336 if (!SvROK (sv)
337 || SvTYPE (SvRV (sv)) != SVt_PVMG
338 || SvSTASH (SvRV (sv)) != aio_wd_stash)
339 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340
341 return (aio_wd)(long)SvIVX (SvRV (sv));
342}
343
344static SV *
345newmortalFH (int fd, int flags)
346{
347 if (fd < 0)
348 return &PL_sv_undef;
349
350 GV *gv = (GV *)sv_newmortal ();
351 char sym[64];
352 int symlen;
353
354 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
355 gv_init (gv, aio_stash, sym, symlen, 0);
356
357 symlen = snprintf (
358 sym,
359 sizeof (sym),
360 "%s&=%d",
361 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
362 fd
363 );
364
365 return do_open (gv, sym, symlen, 0, 0, 0, 0)
366 ? (SV *)gv : &PL_sv_undef;
367}
368
369static void
403static void aio_grp_feed (aio_req grp) 370aio_grp_feed (aio_req grp)
404{ 371{
405 block_sig (); 372 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 373 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 374 dSP;
414 375
415 ENTER; 376 ENTER;
416 SAVETMPS; 377 SAVETMPS;
417 PUSHMARK (SP); 378 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 379 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 380 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 381 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 382 SPAGAIN;
422 FREETMPS; 383 FREETMPS;
423 LEAVE; 384 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 } 385 }
434
435 unblock_sig ();
436} 386}
437 387
438static void aio_grp_dec (aio_req grp) 388static void
389req_submit (eio_req *req)
439{ 390{
440 --grp->size; 391 eio_submit (req);
441 392
442 /* call feeder, if applicable */ 393 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 394 {
448 block_sig (); 395 dSP;
396 SV *cb = sv_2mortal (on_next_submit);
449 397
450 if (!req_invoke (grp)) 398 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 399
457 req_destroy (grp); 400 PUSHMARK (SP);
458 unblock_sig (); 401 PUTBACK;
402 call_sv (cb, G_DISCARD | G_EVAL);
459 } 403 }
460} 404}
461 405
406static int
462static int req_invoke (aio_req req) 407req_invoke (eio_req *req)
463{ 408{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 409 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 410 SvREADONLY_off (req->sv2);
468 411
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 412 if (!EIO_CANCELLED (req) && req->callback)
470 { 413 {
414 dSP;
415 static SV *sv_result_cache; /* caches the result integer SV */
416 SV *sv_result;
417
471 ENTER; 418 ENTER;
472 SAVETMPS; 419 SAVETMPS;
473 PUSHMARK (SP); 420 PUSHMARK (SP);
474 EXTEND (SP, 1); 421 EXTEND (SP, 1);
475 422
423 /* do not recreate the result IV from scratch each time */
424 if (expect_true (sv_result_cache))
425 {
426 sv_result = sv_result_cache; sv_result_cache = 0;
427 SvIV_set (sv_result, req->result);
428 SvIOK_only (sv_result);
429 }
430 else
431 {
432 sv_result = newSViv (req->result);
433 SvREADONLY_on (sv_result);
434 }
435
476 switch (req->type) 436 switch (req->type)
477 { 437 {
438 case EIO_WD_OPEN:
439 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
440 break;
441
478 case REQ_READDIR: 442 case EIO_READDIR:
479 { 443 {
480 SV *rv = &PL_sv_undef; 444 SV *rv = &PL_sv_undef;
481 445
482 if (req->result >= 0) 446 if (req->result >= 0)
483 { 447 {
484 int i; 448 int i;
485 char *buf = req->ptr2; 449 char *names = (char *)req->ptr2;
450 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 451 AV *av = newAV ();
487 452
488 av_extend (av, req->result - 1); 453 av_extend (av, req->result - 1);
489 454
490 for (i = 0; i < req->result; ++i) 455 for (i = 0; i < req->result; ++i)
491 { 456 {
492 SV *sv = newSVpv (buf, 0); 457 if (req->int1 & EIO_READDIR_DENTS)
458 {
459 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 460
461 if (req->int1 & EIO_READDIR_CUSTOM2)
462 {
463 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
464 AV *avent = newAV ();
465
466 av_extend (avent, 2);
467
468 if (!sv_type [ent->type])
469 {
470 sv_type [ent->type] = newSViv (ent->type);
471 SvREADONLY_on (sv_type [ent->type]);
472 }
473
474 av_store (avent, 0, namesv);
475 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
476 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
477
478 av_store (av, i, newRV_noinc ((SV *)avent));
479 }
480 else
494 av_store (av, i, sv); 481 av_store (av, i, namesv);
482
483 ++ent;
484 }
485 else
486 {
487 SV *name = newSVpv (names, 0);
488 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 489 names += SvCUR (name) + 1;
490 }
496 } 491 }
497 492
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 493 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 494 }
500 495
501 PUSHs (rv); 496 PUSHs (rv);
497
498 if (req->int1 & EIO_READDIR_CUSTOM1)
499 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 500 }
503 break; 501 break;
504 502
505 case REQ_OPEN: 503 case EIO_OPEN:
504 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
505 break;
506
507 case EIO_STATVFS:
508 case EIO_FSTATVFS:
506 { 509 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 510 SV *rv = &PL_sv_undef;
509 511
512#ifndef _WIN32
510 if (req->result >= 0) 513 if (req->result >= 0)
511 { 514 {
515 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 516 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 517 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 518 * chooses to make it a struct.
515 int symlen;
516 519 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 520 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 521 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 522
520 symlen = snprintf ( 523 rv = sv_2mortal (newRV_noinc ((SV *)hv));
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result
526 );
527 524
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 525 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 526 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
527 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
528 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
529 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
530 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
531 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
532 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
533 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
534 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
535 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 536 }
537#endif
531 538
532 PUSHs (fh); 539 PUSHs (rv);
533 } 540 }
541
534 break; 542 break;
535 543
536 case REQ_GROUP: 544 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 545 req->int1 = 2; /* mark group as finished */
538 546
539 if (req->sv1) 547 if (req->sv1)
540 { 548 {
541 int i; 549 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 553 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 554 PUSHs (*av_fetch (av, i, 0));
547 } 555 }
548 break; 556 break;
549 557
550 case REQ_NOP: 558 case EIO_NOP:
551 case REQ_BUSY: 559 case EIO_BUSY:
552 break; 560 break;
553 561
554 case REQ_READLINK: 562 case EIO_READLINK:
563 case EIO_REALPATH:
555 if (req->result > 0) 564 if (req->result > 0)
565 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
566 break;
567
568 case EIO_STAT:
569 case EIO_LSTAT:
570 case EIO_FSTAT:
571 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
572
573 if (!(PL_laststatval = req->result))
574 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
575 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
576
577 PUSHs (sv_result);
578 break;
579
580 case EIO_SEEK:
581 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
582 break;
583
584 case EIO_READ:
585 {
586 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
587 *SvEND (req->sv2) = 0;
588 SvPOK_only (req->sv2);
589 SvSETMAGIC (req->sv2);
590 PUSHs (sv_result);
591 }
592 break;
593
594 case EIO_CUSTOM:
595 if (req->feed == fiemap)
556 { 596 {
557 SvCUR_set (req->sv2, req->result); 597#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 598 if (!req->result)
599 {
600 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
601
602 if (fiemap->fm_extent_count)
603 {
604 AV *av = newAV ();
605 int i;
606
607 while (fiemap->fm_mapped_extents)
608 {
609 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
610 AV *ext_av = newAV ();
611
612 av_store (ext_av, 3, newSVuv (extent->fe_flags));
613 av_store (ext_av, 2, newSVval64 (extent->fe_length));
614 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
615 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
616
617 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
618 }
619
620 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
621 }
622 else
623 {
624 SvIV_set (sv_result, fiemap->fm_mapped_extents);
625 PUSHs (sv_result);
626 }
627 }
628#endif
560 } 629 }
630 else
631 PUSHs (sv_result);
561 break; 632 break;
562 633
563 case REQ_STAT: 634 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 635 if (req->result > 0)
565 case REQ_FSTAT: 636 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 637 /* FALLTHROUGH */
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break;
571
572 case REQ_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break;
577 638
578 default: 639 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 640 PUSHs (sv_result);
580 break; 641 break;
581 } 642 }
582 643
583 errno = req->errorno; 644 errno = req->errorno;
584 645
585 PUTBACK; 646 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 647 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 648 SPAGAIN;
588 649
650 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
651 SvREFCNT_dec (sv_result);
652 else
653 sv_result_cache = sv_result;
654
589 FREETMPS; 655 FREETMPS;
590 LEAVE; 656 LEAVE;
591 657
592 PUTBACK; 658 PUTBACK;
593 } 659 }
594 660
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); 661 return !!SvTRUE (ERRSV);
610} 662}
611 663
664static void
612static void req_destroy (aio_req req) 665req_destroy (aio_req req)
613{ 666{
614 if (req->self) 667 if (req->self)
615 { 668 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 669 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 670 SvREFCNT_dec (req->self);
618 } 671 }
619 672
620 SvREFCNT_dec (req->sv1); 673 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 674 SvREFCNT_dec (req->sv2);
675 SvREFCNT_dec (req->sv3);
676 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 677 SvREFCNT_dec (req->callback);
623 678
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 679 free (req);
628} 680}
629 681
682static void
630static void req_cancel_subs (aio_req grp) 683req_cancel_subs (aio_req grp)
631{ 684{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 685 if (grp->type != EIO_GROUP)
635 return; 686 return;
636 687
637 SvREFCNT_dec (grp->sv2); 688 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 689 grp->sv2 = 0;
639 690
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 691 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 692}
643 693
644static void req_cancel (aio_req req) 694static void ecb_cold
695create_respipe (void)
645{ 696{
646 req->flags |= FLAG_CANCELLED; 697 if (s_epipe_renew (&respipe))
647 698 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 699}
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
656 700
657static void 701static void
658create_respipe (void) 702poll_wait (void)
659{ 703{
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) 704 while (eio_nreqs ())
795 { 705 {
796 int size; 706 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 707
708 X_LOCK (reslock);
798 size = res_queue.size; 709 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 710 X_UNLOCK (reslock);
800 711
801 if (size) 712 if (size)
802 return; 713 return;
803 714
804 maybe_start_thread (); 715 etp_maybe_start_thread ();
805 716
806 FD_ZERO (&rfd); 717 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 718 }
811} 719}
812 720
813static int poll_cb (void) 721static int
722poll_cb (void)
814{ 723{
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 (;;) 724 for (;;)
828 { 725 {
829 for (;;) 726 int res = eio_poll ();
727
728 if (res > 0)
729 croak (0);
730
731 if (!max_outstanding || max_outstanding > eio_nreqs ())
732 return res;
733
734 poll_wait ();
735 }
736}
737
738static void ecb_cold
739reinit (void)
740{
741 create_respipe ();
742
743 if (eio_init (want_poll, done_poll) < 0)
744 croak ("IO::AIO: unable to initialise eio library");
745}
746
747/*****************************************************************************/
748
749#if !_POSIX_MAPPED_FILES
750# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
751# define munmap(addr,length) EIO_ENOSYS ()
752#endif
753
754#if !_POSIX_MEMORY_PROTECTION
755# define mprotect(addr,len,prot) EIO_ENOSYS ()
756# define PROT_NONE 0
757# define PROT_WRITE 0
758# define MAP_PRIVATE 0
759# define MAP_SHARED 0
760# define MAP_FIXED 0
761#endif
762
763#define MMAP_MAGIC PERL_MAGIC_ext
764
765static int ecb_cold
766mmap_free (pTHX_ SV *sv, MAGIC *mg)
767{
768 int old_errno = errno;
769 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
770 errno = old_errno;
771
772 mg->mg_obj = 0; /* just in case */
773
774 SvREADONLY_off (sv);
775
776 if (SvPVX (sv) != mg->mg_ptr)
777 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
778
779 SvCUR_set (sv, 0);
780 SvPVX (sv) = 0;
781 SvOK_off (sv);
782
783 return 0;
784}
785
786static MGVTBL mmap_vtbl = {
787 0, 0, 0, 0, mmap_free
788};
789
790/*****************************************************************************/
791
792static SV *
793get_cb (SV *cb_sv)
794{
795 SvGETMAGIC (cb_sv);
796 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797}
798
799static aio_req ecb_noinline
800dreq (SV *callback)
801{
802 SV *cb_cv;
803 aio_req req;
804 int req_pri = next_pri;
805 next_pri = EIO_PRI_DEFAULT;
806
807 cb_cv = get_cb (callback);
808
809 req = calloc (sizeof (*req), 1);
810 if (!req)
811 croak ("out of memory during eio_req allocation");
812
813 req->callback = SvREFCNT_inc (cb_cv);
814 req->pri = req_pri;
815
816 return req;
817}
818
819#define dREQ \
820 aio_req req = dreq (callback); \
821
822#define REQ_SEND \
823 PUTBACK; \
824 req_submit (req); \
825 SPAGAIN; \
826 \
827 if (GIMME_V != G_VOID) \
828 XPUSHs (req_sv (req, aio_req_stash));
829
830ecb_inline void
831req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
832{
833 if (expect_false (SvROK (path)))
834 {
835 SV *rv = SvRV (path);
836 SV *wdob;
837
838 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
830 { 839 {
831 maybe_start_thread (); 840 path = AvARRAY (rv)[1];
841 wdob = AvARRAY (rv)[0];
832 842
833 X_LOCK (reslock); 843 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 844 {
838 --npending; 845 *wd = SvAIO_WD (wdob);
839 846 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
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 } 847 }
861 else 848 else
862 { 849 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
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 } 850 }
851 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
852 {
853 *wd = (aio_wd)(long)SvIVX (rv);
854 *wdsv = SvREFCNT_inc_NN (rv);
855 *ptr = ".";
856 return; /* path set to "." */
857 }
858 else
859 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
860 }
886 861
887 if (nreqs <= max_outstanding) 862 *pathsv = newSVsv (path);
863 *ptr = SvPVbyte_nolen (*pathsv);
864}
865
866static void ecb_noinline
867req_set_path1 (aio_req req, SV *path)
868{
869 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
870}
871
872static void ecb_noinline
873req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
874{
875 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
876
877 switch (SvTYPE (rv))
878 {
879 case SVt_PVIO:
880 case SVt_PVLV:
881 case SVt_PVGV:
882 req->type = type_fh;
883 req->sv1 = newSVsv (fh_or_path);
884 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
888 break; 885 break;
889 886
890 poll_wait (); 887 default:
891 888 req->type = type_path;
892 ++maxreqs; 889 req_set_path1 (req, fh_or_path);
890 break;
893 } 891 }
894
895 unblock_sig ();
896 return count;
897} 892}
898 893
899/*****************************************************************************/ 894XS(boot_IO__AIO) ecb_cold;
900/* work around various missing functions */
901 895
902#if !HAVE_PREADWRITE
903# define pread aio_pread
904# define pwrite aio_pwrite
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
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
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
1210/*****************************************************************************/
1211
1212X_THREAD_PROC (aio_proc)
1213{
1214 aio_req req;
1215 struct timespec ts;
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}
1444
1445#define dREQ \
1446 aio_req req; \
1447 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \
1449 \
1450 if (SvOK (callback) && !SvROK (callback)) \
1451 croak ("callback must be undef or of reference type"); \
1452 \
1453 Newz (0, req, 1, aio_cb); \
1454 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \
1456 \
1457 req->callback = newSVsv (callback); \
1458 req->pri = req_pri
1459
1460#define REQ_SEND \
1461 req_send (req); \
1462 \
1463 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1465
1466MODULE = IO::AIO PACKAGE = IO::AIO 896MODULE = IO::AIO PACKAGE = IO::AIO
1467 897
1468PROTOTYPES: ENABLE 898PROTOTYPES: ENABLE
1469 899
1470BOOT: 900BOOT:
1471{ 901{
902 static const struct {
903 const char *name;
904 IV iv;
905 } *civ, const_iv[] = {
906# define const_niv(name, value) { # name, (IV) value },
907# define const_iv(name) { # name, (IV) name },
908# define const_eio(name) { # name, (IV) EIO_ ## name },
909
910 /* you have to re-run ./gendef0 after adding/Removing any constants here */
911
912 const_iv (ENOSYS)
913 const_iv (EXDEV)
914 const_iv (EBADR)
915
916 const_iv (O_RDONLY)
917 const_iv (O_WRONLY)
918 const_iv (O_RDWR)
919 const_iv (O_CREAT)
920 const_iv (O_TRUNC)
921 const_iv (O_EXCL)
922 const_iv (O_APPEND)
923
924 const_iv (O_ASYNC)
925 const_iv (O_DIRECT)
926 const_iv (O_NOATIME)
927
928 const_iv (O_CLOEXEC)
929 const_iv (O_NOCTTY)
930 const_iv (O_NOFOLLOW)
931 const_iv (O_NONBLOCK)
932 const_iv (O_EXEC)
933 const_iv (O_SEARCH)
934 const_iv (O_DIRECTORY)
935 const_iv (O_DSYNC)
936 const_iv (O_RSYNC)
937 const_iv (O_SYNC)
938 const_iv (O_PATH)
939 const_iv (O_TMPFILE)
940 const_iv (O_TTY_INIT)
941
942 const_iv (S_IFIFO)
943 const_iv (S_IFCHR)
944 const_iv (S_IFBLK)
945 const_iv (S_IFLNK)
946 const_iv (S_IFREG)
947 const_iv (S_IFDIR)
948 const_iv (S_IFWHT)
949 const_iv (S_IFSOCK)
950 const_iv (S_IFMT)
951
952 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964
965 const_iv (ST_RDONLY)
966 const_iv (ST_NOSUID)
967 const_iv (ST_NODEV)
968 const_iv (ST_NOEXEC)
969 const_iv (ST_SYNCHRONOUS)
970 const_iv (ST_MANDLOCK)
971 const_iv (ST_WRITE)
972 const_iv (ST_APPEND)
973 const_iv (ST_IMMUTABLE)
974 const_iv (ST_NOATIME)
975 const_iv (ST_NODIRATIME)
976 const_iv (ST_RELATIME)
977
978 const_iv (PROT_NONE)
979 const_iv (PROT_EXEC)
980 const_iv (PROT_READ)
981 const_iv (PROT_WRITE)
982
983 /*const_iv (MAP_FIXED)*/
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_ANONYMOUS)
987
988 /* linuxish */
989 const_iv (MAP_HUGETLB)
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994
995 const_iv (FIEMAP_FLAG_SYNC)
996 const_iv (FIEMAP_FLAG_XATTR)
997 const_iv (FIEMAP_FLAGS_COMPAT)
998 const_iv (FIEMAP_EXTENT_LAST)
999 const_iv (FIEMAP_EXTENT_UNKNOWN)
1000 const_iv (FIEMAP_EXTENT_DELALLOC)
1001 const_iv (FIEMAP_EXTENT_ENCODED)
1002 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1003 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1004 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1005 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1006 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1007 const_iv (FIEMAP_EXTENT_MERGED)
1008 const_iv (FIEMAP_EXTENT_SHARED)
1009
1010 const_iv (SPLICE_F_MOVE)
1011 const_iv (SPLICE_F_NONBLOCK)
1012 const_iv (SPLICE_F_MORE)
1013 const_iv (SPLICE_F_GIFT)
1014
1015 const_iv (SEEK_DATA)
1016 const_iv (SEEK_HOLE)
1017
1018 /* libeio constants */
1019 const_eio (SEEK_SET)
1020 const_eio (SEEK_CUR)
1021 const_eio (SEEK_END)
1022
1023 const_eio (MCL_FUTURE)
1024 const_eio (MCL_CURRENT)
1025
1026 const_eio (MS_ASYNC)
1027 const_eio (MS_INVALIDATE)
1028 const_eio (MS_SYNC)
1029
1030 const_eio (MT_MODIFY)
1031
1032 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1033 const_eio (SYNC_FILE_RANGE_WRITE)
1034 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1035
1036 const_eio (FALLOC_FL_KEEP_SIZE)
1037 const_eio (FALLOC_FL_PUNCH_HOLE)
1038 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039 const_eio (FALLOC_FL_ZERO_RANGE)
1040
1041 const_eio (READDIR_DENTS)
1042 const_eio (READDIR_DIRS_FIRST)
1043 const_eio (READDIR_STAT_ORDER)
1044 const_eio (READDIR_FOUND_UNKNOWN)
1045
1046 const_eio (DT_UNKNOWN)
1047 const_eio (DT_FIFO)
1048 const_eio (DT_CHR)
1049 const_eio (DT_DIR)
1050 const_eio (DT_BLK)
1051 const_eio (DT_REG)
1052 const_eio (DT_LNK)
1053 const_eio (DT_SOCK)
1054 const_eio (DT_WHT)
1055 };
1056
1472 stash = gv_stashpv ("IO::AIO", 1); 1057 aio_stash = gv_stashpv ("IO::AIO" , 1);
1058 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1059 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1060 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1473 1061
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1062 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1063 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 1064
1487 X_COND_CHECK (reqwait); 1065 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 1066
1493 create_respipe (); 1067 reinit ();
1494
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1496} 1068}
1497 1069
1498void 1070void
1071reinit ()
1072 PROTOTYPE:
1073
1074void
1499max_poll_reqs (int nreqs) 1075max_poll_reqs (unsigned int nreqs)
1500 PROTOTYPE: $ 1076 PROTOTYPE: $
1501 CODE: 1077 CODE:
1502 max_poll_reqs = nreqs; 1078 eio_set_max_poll_reqs (nreqs);
1503 1079
1504void 1080void
1505max_poll_time (double nseconds) 1081max_poll_time (double nseconds)
1506 PROTOTYPE: $ 1082 PROTOTYPE: $
1507 CODE: 1083 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 1084 eio_set_max_poll_time (nseconds);
1509 1085
1510void 1086void
1511min_parallel (int nthreads) 1087min_parallel (unsigned int nthreads)
1512 PROTOTYPE: $
1513
1514void
1515max_parallel (int nthreads)
1516 PROTOTYPE: $
1517
1518void
1519max_idle (int nthreads)
1520 PROTOTYPE: $ 1088 PROTOTYPE: $
1521 CODE: 1089 CODE:
1522 set_max_idle (nthreads); 1090 eio_set_min_parallel (nthreads);
1523 1091
1524int 1092void
1525max_outstanding (int maxreqs) 1093max_parallel (unsigned int nthreads)
1526 PROTOTYPE: $ 1094 PROTOTYPE: $
1527 CODE: 1095 CODE:
1528 RETVAL = max_outstanding; 1096 eio_set_max_parallel (nthreads);
1097
1098void
1099max_idle (unsigned int nthreads)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_max_idle (nthreads);
1103
1104void
1105idle_timeout (unsigned int seconds)
1106 PROTOTYPE: $
1107 CODE:
1108 eio_set_idle_timeout (seconds);
1109
1110void
1111max_outstanding (unsigned int maxreqs)
1112 PROTOTYPE: $
1113 CODE:
1529 max_outstanding = maxreqs; 1114 max_outstanding = maxreqs;
1530 OUTPUT:
1531 RETVAL
1532 1115
1533void 1116void
1534aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1117aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1535 PROTOTYPE: $$$;$
1536 PPCODE: 1118 PPCODE:
1537{ 1119{
1538 dREQ; 1120 dREQ;
1539 1121
1122 req->type = EIO_WD_OPEN;
1123 req_set_path1 (req, pathname);
1124
1125 REQ_SEND;
1126}
1127
1128void
1129aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1130 PPCODE:
1131{
1132 dREQ;
1133
1540 req->type = REQ_OPEN; 1134 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 1135 req_set_path1 (req, pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 1136 req->int1 = flags;
1544 req->mode = mode; 1137 req->int2 = mode;
1545 1138
1546 REQ_SEND; 1139 REQ_SEND;
1547} 1140}
1548 1141
1549void 1142void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1143aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1551 PROTOTYPE: $;$
1552 ALIAS: 1144 ALIAS:
1553 aio_fsync = REQ_FSYNC 1145 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 1146 aio_fdatasync = EIO_FDATASYNC
1147 aio_syncfs = EIO_SYNCFS
1555 PPCODE: 1148 PPCODE:
1556{ 1149{
1150 int fd = s_fileno_croak (fh, 0);
1557 dREQ; 1151 dREQ;
1558 1152
1559 req->type = ix; 1153 req->type = ix;
1560 req->sv1 = newSVsv (fh); 1154 req->sv1 = newSVsv (fh);
1561 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1155 req->int1 = fd;
1562 1156
1563 REQ_SEND (req); 1157 REQ_SEND;
1564} 1158}
1565 1159
1566void 1160void
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 1161aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1568 PROTOTYPE: $;$
1569 PPCODE: 1162 PPCODE:
1570{ 1163{
1164 int fd = s_fileno_croak (fh, 0);
1571 dREQ; 1165 dREQ;
1572 1166
1573 req->type = REQ_CLOSE; 1167 req->type = EIO_SYNC_FILE_RANGE;
1574 req->sv1 = newSVsv (fh); 1168 req->sv1 = newSVsv (fh);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1169 req->int1 = fd;
1170 req->offs = offset;
1171 req->size = nbytes;
1172 req->int2 = flags;
1576 1173
1577 REQ_SEND (req); 1174 REQ_SEND;
1578} 1175}
1579 1176
1580void 1177void
1178aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1179 PPCODE:
1180{
1181 int fd = s_fileno_croak (fh, 0);
1182 dREQ;
1183
1184 req->type = EIO_FALLOCATE;
1185 req->sv1 = newSVsv (fh);
1186 req->int1 = fd;
1187 req->int2 = mode;
1188 req->offs = offset;
1189 req->size = len;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196 PPCODE:
1197{
1198 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199 int fd = s_fileno_croak (fh, 0);
1200 dREQ;
1201
1202 if (expect_false (close_fd < 0))
1203 {
1204 int pipefd [2];
1205
1206 if (
1207#ifdef _WIN32
1208 _pipe (pipefd, 1, _O_BINARY) < 0
1209#else
1210 pipe (pipefd) < 0
1211 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1212#endif
1213 || close (pipefd [1]) < 0
1214 )
1215 abort (); /*D*/
1216
1217 close_fd = pipefd [0];
1218 }
1219
1220 req->type = EIO_DUP2;
1221 req->int1 = close_fd;
1222 req->sv2 = newSVsv (fh);
1223 req->int2 = fd;
1224
1225 REQ_SEND;
1226}
1227
1228void
1229aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1230 PPCODE:
1231{
1232 int fd = s_fileno_croak (fh, 0);
1233 dREQ;
1234
1235 req->type = EIO_SEEK;
1236 req->sv1 = newSVsv (fh);
1237 req->int1 = fd;
1238 req->offs = SvVAL64 (offset);
1239 req->int2 = whence;
1240
1241 REQ_SEND;
1242}
1243
1244void
1581aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1245aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1582 ALIAS: 1246 ALIAS:
1583 aio_read = REQ_READ 1247 aio_read = EIO_READ
1584 aio_write = REQ_WRITE 1248 aio_write = EIO_WRITE
1585 PROTOTYPE: $$$$$;$
1586 PPCODE: 1249 PPCODE:
1587{ 1250{
1588 STRLEN svlen; 1251 STRLEN svlen;
1252 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1589 char *svptr = SvPVbyte (data, svlen); 1253 char *svptr = SvPVbyte (data, svlen);
1590 UV len = SvUV (length); 1254 UV len = SvUV (length);
1591 1255
1592 SvUPGRADE (data, SVt_PV);
1593 SvPOK_on (data);
1594
1595 if (dataoffset < 0) 1256 if (dataoffset < 0)
1596 dataoffset += svlen; 1257 dataoffset += svlen;
1597 1258
1598 if (dataoffset < 0 || dataoffset > svlen) 1259 if (dataoffset < 0 || dataoffset > svlen)
1599 croak ("dataoffset outside of data scalar"); 1260 croak ("dataoffset outside of data scalar");
1600 1261
1601 if (ix == REQ_WRITE) 1262 if (ix == EIO_WRITE)
1602 { 1263 {
1603 /* write: check length and adjust. */ 1264 /* write: check length and adjust. */
1604 if (!SvOK (length) || len + dataoffset > svlen) 1265 if (!SvOK (length) || len + dataoffset > svlen)
1605 len = svlen - dataoffset; 1266 len = svlen - dataoffset;
1606 } 1267 }
1607 else 1268 else
1608 { 1269 {
1609 /* read: grow scalar as necessary */ 1270 /* read: check type and grow scalar as necessary */
1271 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1610 svptr = SvGROW (data, len + dataoffset + 1); 1272 svptr = sv_grow (data, len + dataoffset + 1);
1273 else if (SvCUR (data) < len + dataoffset)
1274 croak ("length + dataoffset outside of scalar, and cannot grow");
1611 } 1275 }
1612
1613 if (len < 0)
1614 croak ("length must not be negative");
1615 1276
1616 { 1277 {
1617 dREQ; 1278 dREQ;
1618 1279
1619 req->type = ix; 1280 req->type = ix;
1620 req->sv1 = newSVsv (fh); 1281 req->sv1 = newSVsv (fh);
1621 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1282 req->int1 = fd;
1622 : IoOFP (sv_2io (fh)));
1623 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1283 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1624 req->size = len; 1284 req->size = len;
1625 req->sv2 = SvREFCNT_inc (data); 1285 req->sv2 = SvREFCNT_inc (data);
1626 req->ptr1 = (char *)svptr + dataoffset; 1286 req->ptr2 = (char *)svptr + dataoffset;
1627 req->stroffset = dataoffset; 1287 req->stroffset = dataoffset;
1628 1288
1629 if (!SvREADONLY (data)) 1289 if (!SvREADONLY (data))
1630 { 1290 {
1631 SvREADONLY_on (data); 1291 SvREADONLY_on (data);
… …
1635 REQ_SEND; 1295 REQ_SEND;
1636 } 1296 }
1637} 1297}
1638 1298
1639void 1299void
1640aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1300aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1641 PROTOTYPE: $$;$ 1301 ALIAS:
1302 aio_readlink = EIO_READLINK
1303 aio_realpath = EIO_REALPATH
1642 PPCODE: 1304 PPCODE:
1643{ 1305{
1644 SV *data;
1645 dREQ; 1306 dREQ;
1646 1307
1647 data = newSV (NAME_MAX);
1648 SvPOK_on (data);
1649
1650 req->type = REQ_READLINK; 1308 req->type = ix;
1651 req->sv1 = newSVsv (path); 1309 req_set_path1 (req, pathname);
1652 req->ptr2 = SvPVbyte_nolen (req->sv1);
1653 req->sv2 = data;
1654 req->ptr1 = SvPVbyte_nolen (data);
1655 1310
1656 REQ_SEND; 1311 REQ_SEND;
1657} 1312}
1658 1313
1659void 1314void
1660aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1315aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1661 PROTOTYPE: $$$$;$
1662 PPCODE: 1316 PPCODE:
1663{ 1317{
1318 int ifd = s_fileno_croak (in_fh , 0);
1319 int ofd = s_fileno_croak (out_fh, 1);
1664 dREQ; 1320 dREQ;
1665 1321
1666 req->type = REQ_SENDFILE; 1322 req->type = EIO_SENDFILE;
1667 req->sv1 = newSVsv (out_fh); 1323 req->sv1 = newSVsv (out_fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1324 req->int1 = ofd;
1669 req->sv2 = newSVsv (in_fh); 1325 req->sv2 = newSVsv (in_fh);
1670 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1326 req->int2 = ifd;
1671 req->offs = SvVAL64 (in_offset); 1327 req->offs = in_offset;
1672 req->size = length; 1328 req->size = length;
1673 1329
1674 REQ_SEND; 1330 REQ_SEND;
1675} 1331}
1676 1332
1677void 1333void
1678aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1334aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1679 PROTOTYPE: $$$;$
1680 PPCODE: 1335 PPCODE:
1681{ 1336{
1337 int fd = s_fileno_croak (fh, 0);
1682 dREQ; 1338 dREQ;
1683 1339
1684 req->type = REQ_READAHEAD; 1340 req->type = EIO_READAHEAD;
1685 req->sv1 = newSVsv (fh); 1341 req->sv1 = newSVsv (fh);
1686 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1342 req->int1 = fd;
1687 req->offs = SvVAL64 (offset); 1343 req->offs = offset;
1688 req->size = length; 1344 req->size = length;
1689 1345
1690 REQ_SEND; 1346 REQ_SEND;
1691} 1347}
1692 1348
1693void 1349void
1694aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1350aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1695 ALIAS: 1351 ALIAS:
1696 aio_stat = REQ_STAT 1352 aio_stat = EIO_STAT
1697 aio_lstat = REQ_LSTAT 1353 aio_lstat = EIO_LSTAT
1354 aio_statvfs = EIO_STATVFS
1698 PPCODE: 1355 PPCODE:
1699{ 1356{
1700 dREQ; 1357 dREQ;
1701 1358
1702 req->ptr2 = malloc (sizeof (Stat_t)); 1359 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
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);
1711
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 1360
1723 REQ_SEND; 1361 REQ_SEND;
1724} 1362}
1725 1363
1364UV
1365major (UV dev)
1366 ALIAS:
1367 minor = 1
1368 CODE:
1369 RETVAL = ix ? major (dev) : minor (dev);
1370 OUTPUT:
1371 RETVAL
1372
1373UV
1374makedev (UV maj, UV min)
1375 CODE:
1376 RETVAL = makedev (maj, min);
1377 OUTPUT:
1378 RETVAL
1379
1726void 1380void
1727aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1381aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1728 PPCODE: 1382 PPCODE:
1729{ 1383{
1730 dREQ; 1384 dREQ;
1731 1385
1732 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1386 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1733 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1387 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1734 req->sv1 = newSVsv (fh_or_path); 1388 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 1389
1747 REQ_SEND; 1390 REQ_SEND;
1748} 1391}
1749 1392
1750void 1393void
1751aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1394aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1752 PPCODE: 1395 PPCODE:
1753{ 1396{
1754 dREQ; 1397 dREQ;
1755 1398
1756 req->sv1 = newSVsv (fh_or_path);
1757 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1399 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1758 1400 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 1401
1770 REQ_SEND; 1402 REQ_SEND;
1771} 1403}
1772 1404
1773void 1405void
1774aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1406aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1775 PPCODE: 1407 PPCODE:
1776{ 1408{
1777 dREQ; 1409 dREQ;
1778 1410
1779 req->mode = mode; 1411 req->int2 = mode;
1780 req->sv1 = newSVsv (fh_or_path); 1412 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 1413
1793 REQ_SEND; 1414 REQ_SEND;
1794} 1415}
1795 1416
1796void 1417void
1797aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1418aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1798 PPCODE: 1419 PPCODE:
1799{ 1420{
1800 dREQ; 1421 dREQ;
1801 1422
1802 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1423 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1803 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1424 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1804 req->sv1 = newSVsv (fh_or_path); 1425 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1805
1806 if (SvPOK (fh_or_path))
1807 {
1808 req->type = REQ_CHOWN;
1809 req->ptr1 = SvPVbyte_nolen (req->sv1);
1810 }
1811 else
1812 {
1813 req->type = REQ_FCHOWN;
1814 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1815 }
1816 1426
1817 REQ_SEND; 1427 REQ_SEND;
1818} 1428}
1819 1429
1820void 1430void
1431aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 dREQ;
1435
1436 req->type = EIO_READDIR;
1437 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1438
1439 if (flags & EIO_READDIR_DENTS)
1440 req->int1 |= EIO_READDIR_CUSTOM2;
1441
1442 req_set_path1 (req, pathname);
1443
1444 REQ_SEND;
1445}
1446
1447void
1448aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->type = EIO_MKDIR;
1454 req->int2 = mode;
1455 req_set_path1 (req, pathname);
1456
1457 REQ_SEND;
1458}
1459
1460void
1821aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1461aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1822 ALIAS: 1462 ALIAS:
1823 aio_unlink = REQ_UNLINK 1463 aio_unlink = EIO_UNLINK
1824 aio_rmdir = REQ_RMDIR 1464 aio_rmdir = EIO_RMDIR
1825 aio_readdir = REQ_READDIR 1465 aio_readdir = EIO_READDIR
1826 PPCODE: 1466 PPCODE:
1827{ 1467{
1828 dREQ; 1468 dREQ;
1829 1469
1830 req->type = ix; 1470 req->type = ix;
1831 req->sv1 = newSVsv (pathname); 1471 req_set_path1 (req, pathname);
1832 req->ptr1 = SvPVbyte_nolen (req->sv1);
1833 1472
1834 REQ_SEND; 1473 REQ_SEND;
1835} 1474}
1836 1475
1837void 1476void
1838aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1477aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1478 ALIAS:
1479 aio_link = EIO_LINK
1480 aio_symlink = EIO_SYMLINK
1481 aio_rename = EIO_RENAME
1839 PPCODE: 1482 PPCODE:
1840{ 1483{
1841 dREQ; 1484 eio_wd wd2 = 0;
1842
1843 req->type = REQ_MKDIR;
1844 req->sv1 = newSVsv (pathname);
1845 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 req->mode = mode;
1847
1848 REQ_SEND;
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; 1485 dREQ;
1860 1486
1861 req->type = ix; 1487 req->type = ix;
1862 req->sv2 = newSVsv (oldpath); 1488 req_set_path1 (req, oldpath);
1863 req->ptr2 = SvPVbyte_nolen (req->sv2); 1489 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1864 req->sv1 = newSVsv (newpath); 1490 req->int3 = (long)wd2;
1865 req->ptr1 = SvPVbyte_nolen (req->sv1);
1866 1491
1867 REQ_SEND; 1492 REQ_SEND;
1868} 1493}
1869 1494
1870void 1495void
1871aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1496aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1872 PPCODE: 1497 PPCODE:
1873{ 1498{
1874 dREQ; 1499 dREQ;
1875 1500
1876 req->type = REQ_MKNOD; 1501 req->type = EIO_MKNOD;
1877 req->sv1 = newSVsv (pathname);
1878 req->ptr1 = SvPVbyte_nolen (req->sv1);
1879 req->mode = (mode_t)mode; 1502 req->int2 = (mode_t)mode;
1880 req->offs = dev; 1503 req->offs = dev;
1504 req_set_path1 (req, pathname);
1881 1505
1882 REQ_SEND; 1506 REQ_SEND;
1883} 1507}
1884 1508
1885void 1509void
1510aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1511 ALIAS:
1512 aio_mtouch = EIO_MTOUCH
1513 aio_msync = EIO_MSYNC
1514 PPCODE:
1515{
1516 STRLEN svlen;
1517 char *svptr = SvPVbyte (data, svlen);
1518 UV len = SvUV (length);
1519
1520 if (offset < 0)
1521 offset += svlen;
1522
1523 if (offset < 0 || offset > svlen)
1524 croak ("offset outside of scalar");
1525
1526 if (!SvOK (length) || len + offset > svlen)
1527 len = svlen - offset;
1528
1529 {
1530 dREQ;
1531
1532 req->type = ix;
1533 req->sv2 = SvREFCNT_inc (data);
1534 req->ptr2 = (char *)svptr + offset;
1535 req->size = len;
1536 req->int1 = flags;
1537
1538 REQ_SEND;
1539 }
1540}
1541
1542void
1543aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1544 PPCODE:
1545{
1546 STRLEN svlen;
1547 char *svptr = SvPVbyte (data, svlen);
1548 UV len = SvUV (length);
1549
1550 if (offset < 0)
1551 offset += svlen;
1552
1553 if (offset < 0 || offset > svlen)
1554 croak ("offset outside of scalar");
1555
1556 if (!SvOK (length) || len + offset > svlen)
1557 len = svlen - offset;
1558
1559 {
1560 dREQ;
1561
1562 req->type = EIO_MLOCK;
1563 req->sv2 = SvREFCNT_inc (data);
1564 req->ptr2 = (char *)svptr + offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568 }
1569}
1570
1571void
1572aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 dREQ;
1576
1577 req->type = EIO_MLOCKALL;
1578 req->int1 = flags;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 int fd = s_fileno_croak (fh, 0);
1588 dREQ;
1589
1590 req->type = EIO_CUSTOM;
1591 req->sv1 = newSVsv (fh);
1592 req->int1 = fd;
1593
1594 req->feed = fiemap;
1595#if HAVE_FIEMAP
1596 /* keep our fingers crossed that the next two types are 64 bit */
1597 req->offs = start;
1598 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1599 req->int2 = flags;
1600 req->int3 = SvOK (count) ? SvIV (count) : -1;
1601#endif
1602
1603 REQ_SEND;
1604}
1605
1606void
1886aio_busy (double delay, SV *callback=&PL_sv_undef) 1607aio_busy (double delay, SV *callback = &PL_sv_undef)
1887 PPCODE: 1608 PPCODE:
1888{ 1609{
1889 dREQ; 1610 dREQ;
1890 1611
1891 req->type = REQ_BUSY; 1612 req->type = EIO_BUSY;
1892 req->nv1 = delay < 0. ? 0. : delay; 1613 req->nv1 = delay < 0. ? 0. : delay;
1893 1614
1894 REQ_SEND; 1615 REQ_SEND;
1895} 1616}
1896 1617
1897void 1618void
1898aio_group (SV *callback=&PL_sv_undef) 1619aio_group (SV *callback = &PL_sv_undef)
1899 PROTOTYPE: ;$
1900 PPCODE: 1620 PPCODE:
1901{ 1621{
1902 dREQ; 1622 dREQ;
1903 1623
1904 req->type = REQ_GROUP; 1624 req->type = EIO_GROUP;
1905 1625
1626 PUTBACK;
1906 req_send (req); 1627 req_submit (req);
1628 SPAGAIN;
1629
1907 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1630 XPUSHs (req_sv (req, aio_grp_stash));
1908} 1631}
1909 1632
1910void 1633void
1911aio_nop (SV *callback=&PL_sv_undef) 1634aio_nop (SV *callback = &PL_sv_undef)
1912 ALIAS: 1635 ALIAS:
1913 aio_nop = REQ_NOP 1636 aio_nop = EIO_NOP
1914 aio_sync = REQ_SYNC 1637 aio_sync = EIO_SYNC
1915 PPCODE: 1638 PPCODE:
1916{ 1639{
1917 dREQ; 1640 dREQ;
1918 1641
1919 req->type = ix; 1642 req->type = ix;
1920 1643
1921 REQ_SEND; 1644 REQ_SEND;
1922} 1645}
1923 1646
1924int 1647int
1925aioreq_pri (int pri = 0) 1648aioreq_pri (int pri = NO_INIT)
1926 PROTOTYPE: ;$
1927 CODE: 1649 CODE:
1928 RETVAL = next_pri - PRI_BIAS; 1650 RETVAL = next_pri;
1929 if (items > 0) 1651 if (items > 0)
1930 { 1652 {
1931 if (pri < PRI_MIN) pri = PRI_MIN; 1653 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1932 if (pri > PRI_MAX) pri = PRI_MAX; 1654 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1933 next_pri = pri + PRI_BIAS; 1655 next_pri = pri;
1934 } 1656 }
1935 OUTPUT: 1657 OUTPUT:
1936 RETVAL 1658 RETVAL
1937 1659
1938void 1660void
1939aioreq_nice (int nice = 0) 1661aioreq_nice (int nice = 0)
1940 CODE: 1662 CODE:
1941 nice = next_pri - nice; 1663 nice = next_pri - nice;
1942 if (nice < PRI_MIN) nice = PRI_MIN; 1664 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1943 if (nice > PRI_MAX) nice = PRI_MAX; 1665 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1944 next_pri = nice + PRI_BIAS; 1666 next_pri = nice;
1945 1667
1946void 1668void
1947flush () 1669flush ()
1948 PROTOTYPE:
1949 CODE: 1670 CODE:
1950 while (nreqs) 1671 while (eio_nreqs ())
1951 { 1672 {
1952 poll_wait (); 1673 poll_wait ();
1953 poll_cb (); 1674 poll_cb ();
1954 } 1675 }
1955 1676
1956int 1677int
1957poll() 1678poll ()
1958 PROTOTYPE:
1959 CODE: 1679 CODE:
1960 poll_wait (); 1680 poll_wait ();
1961 RETVAL = poll_cb (); 1681 RETVAL = poll_cb ();
1962 OUTPUT: 1682 OUTPUT:
1963 RETVAL 1683 RETVAL
1964 1684
1965int 1685int
1966poll_fileno() 1686poll_fileno ()
1967 PROTOTYPE:
1968 CODE: 1687 CODE:
1969 RETVAL = respipe [0]; 1688 RETVAL = s_epipe_fd (&respipe);
1970 OUTPUT: 1689 OUTPUT:
1971 RETVAL 1690 RETVAL
1972 1691
1973int 1692int
1974poll_cb(...) 1693poll_cb (...)
1975 PROTOTYPE: 1694 PROTOTYPE:
1976 CODE: 1695 CODE:
1977 RETVAL = poll_cb (); 1696 RETVAL = poll_cb ();
1978 OUTPUT: 1697 OUTPUT:
1979 RETVAL 1698 RETVAL
1980 1699
1981void 1700void
1982poll_wait() 1701poll_wait ()
1983 PROTOTYPE:
1984 CODE: 1702 CODE:
1985 poll_wait (); 1703 poll_wait ();
1986 1704
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 1705int
2024nreqs() 1706nreqs ()
2025 PROTOTYPE:
2026 CODE: 1707 CODE:
2027 RETVAL = nreqs; 1708 RETVAL = eio_nreqs ();
2028 OUTPUT: 1709 OUTPUT:
2029 RETVAL 1710 RETVAL
2030 1711
2031int 1712int
2032nready() 1713nready ()
2033 PROTOTYPE:
2034 CODE: 1714 CODE:
2035 RETVAL = get_nready (); 1715 RETVAL = eio_nready ();
2036 OUTPUT: 1716 OUTPUT:
2037 RETVAL 1717 RETVAL
2038 1718
2039int 1719int
2040npending() 1720npending ()
2041 PROTOTYPE:
2042 CODE: 1721 CODE:
2043 RETVAL = get_npending (); 1722 RETVAL = eio_npending ();
2044 OUTPUT: 1723 OUTPUT:
2045 RETVAL 1724 RETVAL
2046 1725
2047int 1726int
2048nthreads() 1727nthreads ()
2049 PROTOTYPE:
2050 CODE: 1728 CODE:
2051 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1729 RETVAL = eio_nthreads ();
2052 RETVAL = started;
2053 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2054 OUTPUT: 1730 OUTPUT:
2055 RETVAL 1731 RETVAL
2056 1732
1733int
1734fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1735 CODE:
1736 RETVAL = posix_fadvise (fh, offset, length, advice);
1737 OUTPUT:
1738 RETVAL
1739
1740IV
1741sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1742 CODE:
1743 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1744 OUTPUT:
1745 RETVAL
1746
1747void
1748mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749 PPCODE:
1750 sv_unmagic (scalar, MMAP_MAGIC);
1751{
1752 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754 if (addr == (void *)-1)
1755 XSRETURN_NO;
1756
1757 sv_force_normal (scalar);
1758
1759 /* we store the length in mg_obj, as namlen is I32 :/ */
1760 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1761 ->mg_obj = (SV *)length;
1762
1763 SvUPGRADE (scalar, SVt_PV); /* nop... */
1764
1765 if (!(prot & PROT_WRITE))
1766 SvREADONLY_on (scalar);
1767
1768 if (SvLEN (scalar))
1769 Safefree (SvPVX (scalar));
1770
1771 SvPVX (scalar) = (char *)addr;
1772 SvCUR_set (scalar, length);
1773 SvLEN_set (scalar, 0);
1774 SvPOK_only (scalar);
1775
1776 XSRETURN_YES;
1777}
1778
1779void
1780munmap (SV *scalar)
1781 CODE:
1782 sv_unmagic (scalar, MMAP_MAGIC);
1783
1784int
1785madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786 ALIAS:
1787 mprotect = 1
1788 CODE:
1789{
1790 STRLEN svlen;
1791 void *addr = SvPVbyte (scalar, svlen);
1792 STRLEN len = SvUV (length);
1793
1794 if (offset < 0)
1795 offset += svlen;
1796
1797 if (offset < 0 || offset > svlen)
1798 croak ("offset outside of scalar");
1799
1800 if (!SvOK (length) || len + offset > svlen)
1801 len = svlen - offset;
1802
1803 addr = (void *)(((intptr_t)addr) + offset);
1804 eio_page_align (&addr, &len);
1805
1806 switch (ix)
1807 {
1808 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1809 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1810 }
1811}
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1817 CODE:
1818{
1819 STRLEN svlen;
1820 void *addr = SvPVbyte (scalar, svlen);
1821 size_t len = SvUV (length);
1822
1823 if (offset < 0)
1824 offset += svlen;
1825
1826 if (offset < 0 || offset > svlen)
1827 croak ("offset outside of scalar");
1828
1829 if (!SvOK (length) || len + offset > svlen)
1830 len = svlen - offset;
1831
1832 addr = (void *)(((intptr_t)addr) + offset);
1833 eio_page_align (&addr, &len);
1834#if _POSIX_MEMLOCK_RANGE
1835 RETVAL = munlock (addr, len);
1836#else
1837 RETVAL = EIO_ENOSYS ();
1838#endif
1839}
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844munlockall ()
1845 CODE:
1846#if _POSIX_MEMLOCK
1847 munlockall ();
1848#else
1849 RETVAL = EIO_ENOSYS ();
1850#endif
1851 OUTPUT:
1852 RETVAL
1853
1854int
1855splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856 CODE:
1857{
1858#if HAVE_LINUX_SPLICE
1859 loff_t off_in_, off_out_;
1860 RETVAL = splice (
1861 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1862 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1863 length, flags
1864 );
1865#else
1866 RETVAL = EIO_ENOSYS ();
1867#endif
1868}
1869 OUTPUT:
1870 RETVAL
1871
1872int
1873tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1874 CODE:
1875#if HAVE_LINUX_SPLICE
1876 RETVAL = tee (rfh, wfh, length, flags);
1877#else
1878 RETVAL = EIO_ENOSYS ();
1879#endif
1880 OUTPUT:
1881 RETVAL
1882
1883int
1884pipesize (aio_rfd rfh, int new_size = -1)
1885 PROTOTYPE: $;$
1886 CODE:
1887#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1888 if (new_size >= 0)
1889 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1890 else
1891 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1892#else
1893 errno = ENOSYS;
1894 RETVAL = -1;
1895#endif
1896 OUTPUT:
1897 RETVAL
1898
1899void
1900pipe2 (int flags = 0)
1901 PROTOTYPE: ;$
1902 PPCODE:
1903{
1904 int fd[2];
1905 int res;
1906
1907 if (flags)
1908#if HAVE_PIPE2
1909 res = pipe2 (fd, flags);
1910#else
1911 res = (errno = ENOSYS, -1);
1912#endif
1913 else
1914 res = pipe (fd);
1915
1916 if (!res)
1917 {
1918 EXTEND (SP, 2);
1919 PUSHs (newmortalFH (fd[0], O_RDONLY));
1920 PUSHs (newmortalFH (fd[1], O_WRONLY));
1921 }
1922}
1923
1924void _on_next_submit (SV *cb)
1925 CODE:
1926 SvREFCNT_dec (on_next_submit);
1927 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1928
2057PROTOTYPES: DISABLE 1929PROTOTYPES: DISABLE
1930
1931MODULE = IO::AIO PACKAGE = IO::AIO::WD
1932
1933BOOT:
1934{
1935 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1936 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1937}
1938
1939void
1940DESTROY (SV *self)
1941 CODE:
1942{
1943 aio_wd wd = SvAIO_WD (self);
1944#if HAVE_AT
1945 {
1946 SV *callback = &PL_sv_undef;
1947 dREQ; /* clobbers next_pri :/ */
1948 next_pri = req->pri; /* restore next_pri */
1949 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1950 req->type = EIO_WD_CLOSE;
1951 req->wd = wd;
1952 REQ_SEND;
1953 }
1954#else
1955 eio_wd_close_sync (wd);
1956#endif
1957}
2058 1958
2059MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1959MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2060 1960
2061void 1961void
2062cancel (aio_req_ornot req) 1962cancel (aio_req_ornot req)
2063 CODE: 1963 CODE:
2064 req_cancel (req); 1964 eio_cancel (req);
2065 1965
2066void 1966void
2067cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1967cb (aio_req_ornot req, SV *callback = NO_INIT)
2068 CODE: 1968 PPCODE:
1969{
1970 if (GIMME_V != G_VOID)
1971 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1972
1973 if (items > 1)
1974 {
1975 SV *cb_cv = get_cb (callback);
1976
2069 SvREFCNT_dec (req->callback); 1977 SvREFCNT_dec (req->callback);
2070 req->callback = newSVsv (callback); 1978 req->callback = SvREFCNT_inc (cb_cv);
1979 }
1980}
2071 1981
2072MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1982MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2073 1983
2074void 1984void
2075add (aio_req grp, ...) 1985add (aio_req grp, ...)
2076 PPCODE: 1986 PPCODE:
2077{ 1987{
2078 int i; 1988 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 1989
2084 if (grp->int1 == 2) 1990 if (grp->int1 == 2)
2085 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1991 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2086 1992
2087 for (i = 1; i < items; ++i ) 1993 for (i = 1; i < items; ++i )
2088 { 1994 {
1995 aio_req req;
1996
2089 if (GIMME_V != G_VOID) 1997 if (GIMME_V != G_VOID)
2090 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1998 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2091 1999
2092 req = SvAIO_REQ (ST (i)); 2000 req = SvAIO_REQ (ST (i));
2093 2001
2094 if (req) 2002 if (req)
2095 { 2003 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 } 2004 }
2108} 2005}
2109 2006
2110void 2007void
2111cancel_subs (aio_req_ornot req) 2008cancel_subs (aio_req_ornot req)
… …
2120 AV *av; 2017 AV *av;
2121 2018
2122 grp->errorno = errno; 2019 grp->errorno = errno;
2123 2020
2124 av = newAV (); 2021 av = newAV ();
2022 av_extend (av, items - 1);
2125 2023
2126 for (i = 1; i < items; ++i ) 2024 for (i = 1; i < items; ++i )
2127 av_push (av, newSVsv (ST (i))); 2025 av_push (av, newSVsv (ST (i)));
2128 2026
2129 SvREFCNT_dec (grp->sv1); 2027 SvREFCNT_dec (grp->sv1);
… …
2136 grp->errorno = errorno; 2034 grp->errorno = errorno;
2137 2035
2138void 2036void
2139limit (aio_req grp, int limit) 2037limit (aio_req grp, int limit)
2140 CODE: 2038 CODE:
2141 grp->int2 = limit; 2039 eio_grp_limit (grp, limit);
2142 aio_grp_feed (grp);
2143 2040
2144void 2041void
2145feed (aio_req grp, SV *callback=&PL_sv_undef) 2042feed (aio_req grp, SV *callback = &PL_sv_undef)
2146 CODE: 2043 CODE:
2147{ 2044{
2148 SvREFCNT_dec (grp->sv2); 2045 SvREFCNT_dec (grp->sv2);
2149 grp->sv2 = newSVsv (callback); 2046 grp->sv2 = newSVsv (callback);
2047 grp->feed = aio_grp_feed;
2150 2048
2151 if (grp->int2 <= 0) 2049 if (grp->int2 <= 0)
2152 grp->int2 = 2; 2050 grp->int2 = 2;
2153 2051
2154 aio_grp_feed (grp); 2052 eio_grp_limit (grp, grp->int2);
2155} 2053}
2156 2054

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines