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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.107 by root, Wed Oct 3 21:27:51 2007 UTC vs.
Revision 1.243 by root, Mon Jul 18 07:48:01 2016 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. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
29# undef send 56 #undef send
30# undef recv 57 #undef recv
31# undef stat 58 #undef stat
59 #undef lstat
32# undef fstat 60 #undef fstat
33# define lstat stat
34# undef truncate 61 #undef truncate
35# undef ftruncate 62 #undef ftruncate
36# undef open 63 #undef open
64 #undef link
37# undef close 65 #undef close
38# undef unlink 66 #undef unlink
67 #undef mkdir
39# undef rmdir 68 #undef rmdir
40# undef rename 69 #undef rename
41# undef lseek 70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
42 80
43# define chown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 82 #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 83
57#else 84#else
58 85
59# include "autoconf/config.h"
60# include <sys/time.h> 86 #include <sys/time.h>
61# include <sys/select.h> 87 #include <sys/select.h>
62# include <unistd.h> 88 #include <unistd.h>
63# include <utime.h> 89 #include <utime.h>
64# include <signal.h> 90 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 91
67#endif 92 #define EIO_STRUCT_STAT Stat_t
68 93
69#if HAVE_SENDFILE 94#endif
70# if __linux 95
71# include <sys/sendfile.h> 96/*****************************************************************************/
72# elif __freebsd 97
73# include <sys/socket.h> 98#if __GNUC__ >= 3
74# include <sys/uio.h> 99# define expect(expr,value) __builtin_expect ((expr),(value))
75# elif __hpux 100#else
76# include <sys/socket.h> 101# define expect(expr,value) (expr)
77# elif __solaris /* not yet */ 102#endif
78# include <sys/sendfile.h> 103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
79# else 145# else
80# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 147# endif
82#endif 148#endif
83 149
84/* number of seconds after which idle threads exit */ 150/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 151/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h"
86 153
87/* used for struct dirent, AIX doesn't provide it */ 154#ifndef makedev
88#ifndef NAME_MAX 155# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 156#endif
91 157#ifndef major
92/* buffer size for various temporary buffers */ 158# 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 159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
101 163
102static HV *stash; 164#if PAGESIZE <= 0
165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
103 167
104#define dBUF \ 168/*****************************************************************************/
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;
111 169
112typedef SV SV8; /* byte-sv, used for argument-checking */ 170static void
113 171fiemap (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_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{ 172{
137 struct aio_cb *volatile next; 173 req->result = -1;
138 174
139 SV *callback; 175#if HAVE_FIEMAP
140 SV *sv1, *sv2; 176 /* assume some c99 */
141 void *ptr1, *ptr2; 177 struct fiemap *fiemap = 0;
142 off_t offs; 178 size_t end_offset;
143 size_t size; 179 int count = req->int3;
144 ssize_t result;
145 double nv1, nv2;
146 180
147 STRLEN stroffset; 181 req->flags |= EIO_FLAG_PTR1_FREE;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 182
153 unsigned char flags; 183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
154 unsigned char pri; 184 /* increase in 3.5kb steps */
185 if (count < 0)
186 count = 8;
155 187
156 SV *self; /* the perl counterpart of this request, if any */ 188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 189 errno = ENOMEM;
158} aio_cb; 190 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 ()
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return; 191 return;
200 192
201 if (!main_sig) 193 req->ptr1 = fiemap;
194
195 fiemap->fm_start = req->offs;
196 fiemap->fm_length = req->size;
197 fiemap->fm_flags = req->int2;
198 fiemap->fm_extent_count = count;
199
200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 201 return;
203 202
204 sigemptyset (&ss); 203 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 204 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 206 goto done;
208 207
209void unblock_sig () 208 /* else we have to loop -
210{ 209 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 210 * number of extents needed, but linux often feels like not returning all
211 * extents, without telling us it left any out. this complicates
212 * this quite a bit.
213 */
212 214
213 if (--block_sig_level) 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 216
216 if (!main_sig) 217 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 { 218 {
249 closedir (wrk->dirp); 219 /* 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; 220 char scratch[3072];
251 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
252 222
253 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
257 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 228
260static void worker_free (worker *wrk) 229 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 ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 230 return;
355 231
356 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
357 234
358 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
361
362 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 244 {
364 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 246
367 return req; 247 if (e->fe_logical + e->fe_length >= end_offset)
248 goto done;
249
250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
251
252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
253 goto done;
254
368 } 255 }
369 } 256 }
370 257
371 abort (); 258done:
372} 259 req->result = 0;
373 260
374static int poll_cb (); 261#else
375static int req_invoke (aio_req req); 262 errno = ENOSYS;
263#endif
264}
265
266/*****************************************************************************/
267
268enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270};
271
272typedef eio_req *aio_req;
273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
275
276static SV *on_next_submit;
277static int next_pri = EIO_PRI_DEFAULT;
278static int max_outstanding;
279
280static s_epipe respipe;
281
376static void req_destroy (aio_req req); 282static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
378 284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
298
379/* must be called at most once */ 299/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
381{ 302{
382 if (!req->self) 303 if (!req->self)
383 { 304 {
384 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 307 }
387 308
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 310}
390 311
391static aio_req SvAIO_REQ (SV *sv) 312static SV *
313newSVaio_wd (aio_wd wd)
314{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
392{ 320{
393 MAGIC *mg; 321 MAGIC *mg;
394 322
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
397 329
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 331
400 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
401} 333}
402 334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
403static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
404{ 373{
405 block_sig (); 374 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 375 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 376 dSP;
414 377
415 ENTER; 378 ENTER;
416 SAVETMPS; 379 SAVETMPS;
417 PUSHMARK (SP); 380 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 382 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 384 SPAGAIN;
422 FREETMPS; 385 FREETMPS;
423 LEAVE; 386 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 } 387 }
434
435 unblock_sig ();
436} 388}
437 389
438static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
439{ 392{
440 --grp->size; 393 eio_submit (req);
441 394
442 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 396 {
448 block_sig (); 397 dSP;
398 SV *cb = sv_2mortal (on_next_submit);
449 399
450 if (!req_invoke (grp)) 400 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 401
457 req_destroy (grp); 402 PUSHMARK (SP);
458 unblock_sig (); 403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
459 } 405 }
460} 406}
461 407
408static int
462static int req_invoke (aio_req req) 409req_invoke (eio_req *req)
463{ 410{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 411 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 412 SvREADONLY_off (req->sv2);
468 413
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 414 if (!EIO_CANCELLED (req) && req->callback)
470 { 415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
471 ENTER; 420 ENTER;
472 SAVETMPS; 421 SAVETMPS;
473 PUSHMARK (SP); 422 PUSHMARK (SP);
474 EXTEND (SP, 1); 423 EXTEND (SP, 1);
475 424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
427 {
428 sv_result = sv_result_cache; sv_result_cache = 0;
429 SvIV_set (sv_result, req->result);
430 SvIOK_only (sv_result);
431 }
432 else
433 {
434 sv_result = newSViv (req->result);
435 SvREADONLY_on (sv_result);
436 }
437
476 switch (req->type) 438 switch (req->type)
477 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
478 case REQ_READDIR: 444 case EIO_READDIR:
479 { 445 {
480 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
481 447
482 if (req->result >= 0) 448 if (req->result >= 0)
483 { 449 {
484 int i; 450 int i;
485 char *buf = req->ptr2; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 453 AV *av = newAV ();
487 454
488 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
489 456
490 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
491 { 458 {
492 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
494 av_store (av, i, sv); 483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
496 } 493 }
497 494
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 496 }
500 497
501 PUSHs (rv); 498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 502 }
503 break; 503 break;
504 504
505 case REQ_OPEN: 505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
506 { 511 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 512 SV *rv = &PL_sv_undef;
509 513
514#ifndef _WIN32
510 if (req->result >= 0) 515 if (req->result >= 0)
511 { 516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 518 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 520 * chooses to make it a struct.
515 int symlen;
516 521 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 522 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 524
520 symlen = snprintf ( 525 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 );
527 526
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = gv; 528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 538 }
539#endif
531 540
532 XPUSHs (fh); 541 PUSHs (rv);
533 } 542 }
543
534 break; 544 break;
535 545
536 case REQ_GROUP: 546 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
538 548
539 if (req->sv1) 549 if (req->sv1)
540 { 550 {
541 int i; 551 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
547 } 557 }
548 break; 558 break;
549 559
550 case REQ_NOP: 560 case EIO_NOP:
551 case REQ_BUSY: 561 case EIO_BUSY:
552 break; 562 break;
553 563
554 case REQ_READLINK: 564 case EIO_READLINK:
565 case EIO_REALPATH:
555 if (req->result > 0) 566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
556 { 598 {
557 SvCUR_set (req->sv2, req->result); 599#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
560 } 631 }
632 else
633 PUSHs (sv_result);
561 break; 634 break;
562 635
563 case REQ_STAT: 636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 637 if (req->result > 0)
565 case REQ_FSTAT: 638 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 639 /* 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;
577 640
578 default: 641 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
580 break; 643 break;
581 } 644 }
582 645
583 errno = req->errorno; 646 errno = req->errorno;
584 647
585 PUTBACK; 648 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
588 656
589 FREETMPS; 657 FREETMPS;
590 LEAVE; 658 LEAVE;
659
660 PUTBACK;
591 } 661 }
592 662
593 if (req->grp)
594 {
595 aio_req grp = req->grp;
596
597 /* unlink request */
598 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
599 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
600
601 if (grp->grp_first == req)
602 grp->grp_first = req->grp_next;
603
604 aio_grp_dec (grp);
605 }
606
607 return !SvTRUE (ERRSV); 663 return !!SvTRUE (ERRSV);
608} 664}
609 665
666static void
610static void req_destroy (aio_req req) 667req_destroy (aio_req req)
611{ 668{
612 if (req->self) 669 if (req->self)
613 { 670 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
616 } 673 }
617 674
618 SvREFCNT_dec (req->sv1); 675 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
621 680
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 681 free (req);
626} 682}
627 683
684static void
628static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
629{ 686{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
633 return; 688 return;
634 689
635 SvREFCNT_dec (grp->sv2); 690 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 691 grp->sv2 = 0;
637 692
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 694}
641 695
642static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
643{ 698{
644 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
645 700 croak ("IO::AIO: unable to initialize result pipe");
646 req_cancel_subs (req);
647} 701}
648
649#ifdef USE_SOCKETS_AS_HANDLES
650# define TO_SOCKET(x) (win32_get_osfhandle (x))
651#else
652# define TO_SOCKET(x) (x)
653#endif
654 702
655static void 703static void
656create_respipe () 704poll_wait (void)
657{ 705{
658 int old_readfd = respipe [0];
659
660 if (respipe [1] >= 0)
661 respipe_close (TO_SOCKET (respipe [1]));
662
663#ifdef _WIN32
664 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
665#else
666 if (pipe (respipe))
667#endif
668 croak ("unable to initialize result pipe");
669
670 if (old_readfd >= 0)
671 {
672 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
673 croak ("unable to initialize result pipe(2)");
674
675 respipe_close (respipe [0]);
676 respipe [0] = old_readfd;
677 }
678
679#ifdef _WIN32
680 int arg = 1;
681 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
682 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
683#else
684 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
685 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
686#endif
687 croak ("unable to initialize result pipe(3)");
688
689 respipe_osf [0] = TO_SOCKET (respipe [0]);
690 respipe_osf [1] = TO_SOCKET (respipe [1]);
691}
692
693X_THREAD_PROC (aio_proc);
694
695static void start_thread (void)
696{
697 worker *wrk = calloc (1, sizeof (worker));
698
699 if (!wrk)
700 croak ("unable to allocate worker thread data");
701
702 X_LOCK (wrklock);
703
704 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
705 {
706 wrk->prev = &wrk_first;
707 wrk->next = wrk_first.next;
708 wrk_first.next->prev = wrk;
709 wrk_first.next = wrk;
710 ++started;
711 }
712 else
713 free (wrk);
714
715 X_UNLOCK (wrklock);
716}
717
718static void maybe_start_thread ()
719{
720 if (get_nthreads () >= wanted)
721 return;
722
723 /* todo: maybe use idle here, but might be less exact */
724 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
725 return;
726
727 start_thread ();
728}
729
730static void req_send (aio_req req)
731{
732 block_sig ();
733
734 ++nreqs;
735
736 X_LOCK (reqlock);
737 ++nready;
738 reqq_push (&req_queue, req);
739 X_COND_SIGNAL (reqwait);
740 X_UNLOCK (reqlock);
741
742 unblock_sig ();
743
744 maybe_start_thread ();
745}
746
747static void end_thread (void)
748{
749 aio_req req;
750
751 Newz (0, req, 1, aio_cb);
752
753 req->type = REQ_QUIT;
754 req->pri = PRI_MAX + PRI_BIAS;
755
756 X_LOCK (reqlock);
757 reqq_push (&req_queue, req);
758 X_COND_SIGNAL (reqwait);
759 X_UNLOCK (reqlock);
760
761 X_LOCK (wrklock);
762 --started;
763 X_UNLOCK (wrklock);
764}
765
766static void set_max_idle (int nthreads)
767{
768 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
769 max_idle = nthreads <= 0 ? 1 : nthreads;
770 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
771}
772
773static void min_parallel (int nthreads)
774{
775 if (wanted < nthreads)
776 wanted = nthreads;
777}
778
779static void max_parallel (int nthreads)
780{
781 if (wanted > nthreads)
782 wanted = nthreads;
783
784 while (started > wanted)
785 end_thread ();
786}
787
788static void poll_wait ()
789{
790 fd_set rfd;
791
792 while (nreqs) 706 while (eio_nreqs ())
793 { 707 {
794 int size; 708 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 709
710 X_LOCK (EIO_POOL->reslock);
796 size = res_queue.size; 711 size = EIO_POOL->res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 712 X_UNLOCK (EIO_POOL->reslock);
798 713
799 if (size) 714 if (size)
800 return; 715 return;
801 716
802 maybe_start_thread (); 717 etp_maybe_start_thread (EIO_POOL);
803 718
804 FD_ZERO (&rfd); 719 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 720 }
809} 721}
810 722
811static int poll_cb () 723static int
724poll_cb (void)
812{ 725{
813 dSP;
814 int count = 0;
815 int maxreqs = max_poll_reqs;
816 int do_croak = 0;
817 struct timeval tv_start, tv_now;
818 aio_req req;
819
820 if (max_poll_time)
821 gettimeofday (&tv_start, 0);
822
823 block_sig ();
824
825 for (;;) 726 for (;;)
826 { 727 {
827 for (;;) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
828 { 836 {
829 maybe_start_thread (); 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
830 839
831 X_LOCK (reslock); 840 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 841 {
836 --npending; 842 *wd = SvAIO_WD (wdob);
837 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 if (!res_queue.size)
839 {
840 /* read any signals sent by the worker threads */
841 char buf [4];
842 while (respipe_read (respipe [0], buf, 4) == 4)
843 ;
844 }
845 }
846
847 X_UNLOCK (reslock);
848
849 if (!req)
850 break;
851
852 --nreqs;
853
854 if (req->type == REQ_GROUP && req->size)
855 {
856 req->int1 = 1; /* mark request as delayed */
857 continue;
858 } 844 }
859 else 845 else
860 { 846 *wd = EIO_INVALID_WD;
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0);
866 }
867
868 count++;
869 }
870
871 req_destroy (req);
872
873 if (maxreqs && !--maxreqs)
874 break;
875
876 if (max_poll_time)
877 {
878 gettimeofday (&tv_now, 0);
879
880 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
881 break;
882 }
883 } 847 }
848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
849 {
850 *wd = (aio_wd)(long)SvIVX (rv);
851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
854 }
855 else
856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
857 }
884 858
885 if (nreqs <= max_outstanding) 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
861}
862
863static void ecb_noinline
864req_set_path1 (aio_req req, SV *path)
865{
866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
867}
868
869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
871{
872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
873
874 switch (SvTYPE (rv))
875 {
876 case SVt_PVIO:
877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
886 break; 882 break;
887 883
888 poll_wait (); 884 default:
889 885 req->type = type_path;
890 ++maxreqs; 886 req_set_path1 (req, fh_or_path);
887 break;
891 } 888 }
892
893 unblock_sig ();
894 return count;
895} 889}
896 890
897/*****************************************************************************/ 891XS(boot_IO__AIO) ecb_cold;
898/* work around various missing functions */
899 892
900#if !HAVE_PREADWRITE
901# define pread aio_pread
902# define pwrite aio_pwrite
903
904/*
905 * make our pread/pwrite safe against themselves, but not against
906 * normal read/write by using a mutex. slows down execution a lot,
907 * but that's your problem, not mine.
908 */
909static mutex_t preadwritelock = X_MUTEX_INIT;
910
911static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
912{
913 ssize_t res;
914 off_t ooffset;
915
916 X_LOCK (preadwritelock);
917 ooffset = lseek (fd, 0, SEEK_CUR);
918 lseek (fd, offset, SEEK_SET);
919 res = read (fd, buf, count);
920 lseek (fd, ooffset, SEEK_SET);
921 X_UNLOCK (preadwritelock);
922
923 return res;
924}
925
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
927{
928 ssize_t res;
929 off_t ooffset;
930
931 X_LOCK (preadwritelock);
932 ooffset = lseek (fd, 0, SEEK_CUR);
933 lseek (fd, offset, SEEK_SET);
934 res = write (fd, buf, count);
935 lseek (fd, offset, SEEK_SET);
936 X_UNLOCK (preadwritelock);
937
938 return res;
939}
940#endif
941
942#ifndef HAVE_FUTIMES
943
944# define utimes(path,times) aio_utimes (path, times)
945# define futimes(fd,times) aio_futimes (fd, times)
946
947int aio_utimes (const char *filename, const struct timeval times[2])
948{
949 if (times)
950 {
951 struct utimbuf buf;
952
953 buf.actime = times[0].tv_sec;
954 buf.modtime = times[1].tv_sec;
955
956 return utime (filename, &buf);
957 }
958 else
959 return utime (filename, 0);
960}
961
962int aio_futimes (int fd, const struct timeval tv[2])
963{
964 errno = ENOSYS;
965 return -1;
966}
967
968#endif
969
970#if !HAVE_FDATASYNC
971# define fdatasync fsync
972#endif
973
974#if !HAVE_READAHEAD
975# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
976
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
978{
979 size_t todo = count;
980 dBUF;
981
982 while (todo > 0)
983 {
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985
986 pread (fd, aio_buf, len, offset);
987 offset += len;
988 todo -= len;
989 }
990
991 errno = 0;
992 return count;
993}
994
995#endif
996
997#if !HAVE_READDIR_R
998# define readdir_r aio_readdir_r
999
1000static mutex_t readdirlock = X_MUTEX_INIT;
1001
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1003{
1004 X_DIRENT *e;
1005 int errorno;
1006
1007 X_LOCK (readdirlock);
1008
1009 e = readdir (dirp);
1010 errorno = errno;
1011
1012 if (e)
1013 {
1014 *res = ent;
1015 strcpy (ent->d_name, e->d_name);
1016 }
1017 else
1018 *res = 0;
1019
1020 X_UNLOCK (readdirlock);
1021
1022 errno = errorno;
1023 return e ? 0 : -1;
1024}
1025#endif
1026
1027/* sendfile always needs emulation */
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1029{
1030 ssize_t res;
1031
1032 if (!count)
1033 return 0;
1034
1035#if HAVE_SENDFILE
1036# if __linux
1037 res = sendfile (ofd, ifd, &offset, count);
1038
1039# elif __freebsd
1040 /*
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts
1042 * wasted on making it similar to other I/O functions.
1043 */
1044 {
1045 off_t sbytes;
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047
1048 if (res < 0 && sbytes)
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1050 res = sbytes;
1051 }
1052
1053# elif __hpux
1054 res = sendfile (ofd, ifd, offset, count, 0, 0);
1055
1056# elif __solaris
1057 {
1058 struct sendfilevec vec;
1059 size_t sbytes;
1060
1061 vec.sfv_fd = ifd;
1062 vec.sfv_flag = 0;
1063 vec.sfv_off = offset;
1064 vec.sfv_len = count;
1065
1066 res = sendfilev (ofd, &vec, 1, &sbytes);
1067
1068 if (res < 0 && sbytes)
1069 res = sbytes;
1070 }
1071
1072# endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077
1078 if (res < 0
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1080#if __solaris
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1082#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088
1089 res = 0;
1090
1091 while (count)
1092 {
1093 ssize_t cnt;
1094
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1096
1097 if (cnt <= 0)
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102
1103 cnt = write (ofd, aio_buf, cnt);
1104
1105 if (cnt <= 0)
1106 {
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110
1111 offset += cnt;
1112 res += cnt;
1113 count -= cnt;
1114 }
1115 }
1116
1117 return res;
1118}
1119
1120/* read a full directory */
1121static void scandir_ (aio_req req, worker *self)
1122{
1123 DIR *dirp;
1124 union
1125 {
1126 X_DIRENT d;
1127 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1128 } *u;
1129 X_DIRENT *entp;
1130 char *name, *names;
1131 int memlen = 4096;
1132 int memofs = 0;
1133 int res = 0;
1134
1135 X_LOCK (wrklock);
1136 self->dirp = dirp = opendir (req->ptr1);
1137 self->dbuf = u = malloc (sizeof (*u));
1138 req->flags |= FLAG_PTR2_FREE;
1139 req->ptr2 = names = malloc (memlen);
1140 X_UNLOCK (wrklock);
1141
1142 if (dirp && u && names)
1143 for (;;)
1144 {
1145 errno = 0;
1146 readdir_r (dirp, &u->d, &entp);
1147
1148 if (!entp)
1149 break;
1150
1151 name = entp->d_name;
1152
1153 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1154 {
1155 int len = strlen (name) + 1;
1156
1157 res++;
1158
1159 while (memofs + len > memlen)
1160 {
1161 memlen *= 2;
1162 X_LOCK (wrklock);
1163 req->ptr2 = names = realloc (names, memlen);
1164 X_UNLOCK (wrklock);
1165
1166 if (!names)
1167 break;
1168 }
1169
1170 memcpy (names + memofs, name, len);
1171 memofs += len;
1172 }
1173 }
1174
1175 if (errno)
1176 res = -1;
1177
1178 req->result = res;
1179}
1180
1181/*****************************************************************************/
1182
1183X_THREAD_PROC (aio_proc)
1184{
1185 {//D
1186 aio_req req;
1187 struct timespec ts;
1188 worker *self = (worker *)thr_arg;
1189
1190 /* try to distribute timeouts somewhat randomly */
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192
1193 for (;;)
1194 {
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1196
1197 X_LOCK (reqlock);
1198
1199 for (;;)
1200 {
1201 self->req = req = reqq_shift (&req_queue);
1202
1203 if (req)
1204 break;
1205
1206 ++idle;
1207
1208 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1209 == ETIMEDOUT)
1210 {
1211 if (idle > max_idle)
1212 {
1213 --idle;
1214 X_UNLOCK (reqlock);
1215 X_LOCK (wrklock);
1216 --started;
1217 X_UNLOCK (wrklock);
1218 goto quit;
1219 }
1220
1221 /* we are allowed to idle, so do so without any timeout */
1222 X_COND_WAIT (reqwait, reqlock);
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224 }
1225
1226 --idle;
1227 }
1228
1229 --nready;
1230
1231 X_UNLOCK (reqlock);
1232
1233 errno = 0; /* strictly unnecessary */
1234
1235 if (!(req->flags & FLAG_CANCELLED))
1236 switch (req->type)
1237 {
1238 case REQ_READ: req->result = req->offs >= 0
1239 ? pread (req->int1, req->ptr1, req->size, req->offs)
1240 : read (req->int1, req->ptr1, req->size); break;
1241 case REQ_WRITE: req->result = req->offs >= 0
1242 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1243 : write (req->int1, req->ptr1, req->size); break;
1244
1245 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1246 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1247
1248 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1249 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1251
1252 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1253 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1254 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1255 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1256 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1257 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1258
1259 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1260 case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
1261 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1262 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1263 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1264 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1265 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1266 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1267 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1268 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1269
1270 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1271 case REQ_FSYNC: req->result = fsync (req->int1); break;
1272 case REQ_READDIR: scandir_ (req, self); break;
1273
1274 case REQ_BUSY:
1275#ifdef _WIN32
1276 Sleep (req->nv1 * 1000.);
1277#else
1278 {
1279 struct timeval tv;
1280
1281 tv.tv_sec = req->nv1;
1282 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1283
1284 req->result = select (0, 0, 0, 0, &tv);
1285 }
1286#endif
1287 break;
1288
1289 case REQ_UTIME:
1290 case REQ_FUTIME:
1291 {
1292 struct timeval tv[2];
1293 struct timeval *times;
1294
1295 if (req->nv1 != -1. || req->nv2 != -1.)
1296 {
1297 tv[0].tv_sec = req->nv1;
1298 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1299 tv[1].tv_sec = req->nv2;
1300 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1301
1302 times = tv;
1303 }
1304 else
1305 times = 0;
1306
1307
1308 req->result = req->type == REQ_FUTIME
1309 ? futimes (req->int1, times)
1310 : utimes (req->ptr1, times);
1311 }
1312
1313 case REQ_GROUP:
1314 case REQ_NOP:
1315 break;
1316
1317 case REQ_QUIT:
1318 goto quit;
1319
1320 default:
1321 req->result = -1;
1322 break;
1323 }
1324
1325 req->errorno = errno;
1326
1327 X_LOCK (reslock);
1328
1329 ++npending;
1330
1331 if (!reqq_push (&res_queue, req))
1332 {
1333 /* write a dummy byte to the pipe so fh becomes ready */
1334 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1335
1336 /* optionally signal the main thread asynchronously */
1337 if (main_sig)
1338 pthread_kill (main_tid, main_sig);
1339 }
1340
1341 self->req = 0;
1342 worker_clear (self);
1343
1344 X_UNLOCK (reslock);
1345 }
1346
1347quit:
1348 X_LOCK (wrklock);
1349 worker_free (self);
1350 X_UNLOCK (wrklock);
1351
1352 return 0;
1353 }//D
1354}
1355
1356/*****************************************************************************/
1357
1358static void atfork_prepare (void)
1359{
1360 X_LOCK (wrklock);
1361 X_LOCK (reqlock);
1362 X_LOCK (reslock);
1363#if !HAVE_PREADWRITE
1364 X_LOCK (preadwritelock);
1365#endif
1366#if !HAVE_READDIR_R
1367 X_LOCK (readdirlock);
1368#endif
1369}
1370
1371static void atfork_parent (void)
1372{
1373#if !HAVE_READDIR_R
1374 X_UNLOCK (readdirlock);
1375#endif
1376#if !HAVE_PREADWRITE
1377 X_UNLOCK (preadwritelock);
1378#endif
1379 X_UNLOCK (reslock);
1380 X_UNLOCK (reqlock);
1381 X_UNLOCK (wrklock);
1382}
1383
1384static void atfork_child (void)
1385{
1386 aio_req prv;
1387
1388 while (prv = reqq_shift (&req_queue))
1389 req_destroy (prv);
1390
1391 while (prv = reqq_shift (&res_queue))
1392 req_destroy (prv);
1393
1394 while (wrk_first.next != &wrk_first)
1395 {
1396 worker *wrk = wrk_first.next;
1397
1398 if (wrk->req)
1399 req_destroy (wrk->req);
1400
1401 worker_clear (wrk);
1402 worker_free (wrk);
1403 }
1404
1405 started = 0;
1406 idle = 0;
1407 nreqs = 0;
1408 nready = 0;
1409 npending = 0;
1410
1411 create_respipe ();
1412
1413 atfork_parent ();
1414}
1415
1416#define dREQ \
1417 aio_req req; \
1418 int req_pri = next_pri; \
1419 next_pri = DEFAULT_PRI + PRI_BIAS; \
1420 \
1421 if (SvOK (callback) && !SvROK (callback)) \
1422 croak ("callback must be undef or of reference type"); \
1423 \
1424 Newz (0, req, 1, aio_cb); \
1425 if (!req) \
1426 croak ("out of memory during aio_req allocation"); \
1427 \
1428 req->callback = newSVsv (callback); \
1429 req->pri = req_pri
1430
1431#define REQ_SEND \
1432 req_send (req); \
1433 \
1434 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1436
1437MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
1438 894
1439PROTOTYPES: ENABLE 895PROTOTYPES: ENABLE
1440 896
1441BOOT: 897BOOT:
1442{ 898{
899 static const struct {
900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
906
907 /* you have to re-run ./gendef0 after adding/removing any constants here */
908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
912
913 /* for lseek */
914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
916
917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
923
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
930
931 /* the second block will be 0 when missing */
932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
939
940 const_iv (O_ASYNC)
941 const_iv (O_DIRECT)
942 const_iv (O_NOATIME)
943
944 const_iv (O_CLOEXEC)
945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_iv (ST_RDONLY)
969 const_iv (ST_NOSUID)
970 const_iv (ST_NODEV)
971 const_iv (ST_NOEXEC)
972 const_iv (ST_SYNCHRONOUS)
973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
980
981 const_iv (PROT_NONE)
982 const_iv (PROT_EXEC)
983 const_iv (PROT_READ)
984 const_iv (PROT_WRITE)
985
986 const_iv (MAP_PRIVATE)
987 const_iv (MAP_SHARED)
988 const_iv (MAP_FIXED)
989 const_iv (MAP_ANONYMOUS)
990
991 /* linuxish */
992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
1000
1001 const_iv (FIFREEZE)
1002 const_iv (FITHAW)
1003 const_iv (FITRIM)
1004 const_iv (FICLONE)
1005 const_iv (FICLONERANGE)
1006 const_iv (FIDEDUPERANGE)
1007
1008 const_iv (FS_IOC_GETFLAGS)
1009 const_iv (FS_IOC_SETFLAGS)
1010 const_iv (FS_IOC_GETVERSION)
1011 const_iv (FS_IOC_SETVERSION)
1012 const_iv (FS_IOC_FIEMAP)
1013 const_iv (FS_IOC_FSGETXATTR)
1014 const_iv (FS_IOC_FSSETXATTR)
1015 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1016 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1017 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1018
1019 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1020
1021 const_iv (FS_SECRM_FL)
1022 const_iv (FS_UNRM_FL)
1023 const_iv (FS_COMPR_FL)
1024 const_iv (FS_SYNC_FL)
1025 const_iv (FS_IMMUTABLE_FL)
1026 const_iv (FS_APPEND_FL)
1027 const_iv (FS_NODUMP_FL)
1028 const_iv (FS_NOATIME_FL)
1029 const_iv (FS_DIRTY_FL)
1030 const_iv (FS_COMPRBLK_FL)
1031 const_iv (FS_NOCOMP_FL)
1032 const_iv (FS_ENCRYPT_FL)
1033 const_iv (FS_BTREE_FL)
1034 const_iv (FS_INDEX_FL)
1035 const_iv (FS_JOURNAL_DATA_FL)
1036 const_iv (FS_NOTAIL_FL)
1037 const_iv (FS_DIRSYNC_FL)
1038 const_iv (FS_TOPDIR_FL)
1039 const_iv (FS_FL_USER_MODIFIABLE)
1040
1041 const_iv (FS_XFLAG_REALTIME)
1042 const_iv (FS_XFLAG_PREALLOC)
1043 const_iv (FS_XFLAG_IMMUTABLE)
1044 const_iv (FS_XFLAG_APPEND)
1045 const_iv (FS_XFLAG_SYNC)
1046 const_iv (FS_XFLAG_NOATIME)
1047 const_iv (FS_XFLAG_NODUMP)
1048 const_iv (FS_XFLAG_RTINHERIT)
1049 const_iv (FS_XFLAG_PROJINHERIT)
1050 const_iv (FS_XFLAG_NOSYMLINKS)
1051 const_iv (FS_XFLAG_EXTSIZE)
1052 const_iv (FS_XFLAG_EXTSZINHERIT)
1053 const_iv (FS_XFLAG_NODEFRAG)
1054 const_iv (FS_XFLAG_FILESTREAM)
1055 const_iv (FS_XFLAG_DAX)
1056 const_iv (FS_XFLAG_HASATTR)
1057
1058 const_iv (FIEMAP_FLAG_SYNC)
1059 const_iv (FIEMAP_FLAG_XATTR)
1060 const_iv (FIEMAP_FLAGS_COMPAT)
1061 const_iv (FIEMAP_EXTENT_LAST)
1062 const_iv (FIEMAP_EXTENT_UNKNOWN)
1063 const_iv (FIEMAP_EXTENT_DELALLOC)
1064 const_iv (FIEMAP_EXTENT_ENCODED)
1065 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1066 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1067 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1068 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1069 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1070 const_iv (FIEMAP_EXTENT_MERGED)
1071 const_iv (FIEMAP_EXTENT_SHARED)
1072
1073 const_iv (SPLICE_F_MOVE)
1074 const_iv (SPLICE_F_NONBLOCK)
1075 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT)
1077
1078 /* these are libeio constants, and are independent of gendef0 */
1079 const_eio (SEEK_SET)
1080 const_eio (SEEK_CUR)
1081 const_eio (SEEK_END)
1082
1083 const_eio (MCL_FUTURE)
1084 const_eio (MCL_CURRENT)
1085
1086 const_eio (MS_ASYNC)
1087 const_eio (MS_INVALIDATE)
1088 const_eio (MS_SYNC)
1089
1090 const_eio (MT_MODIFY)
1091
1092 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1093 const_eio (SYNC_FILE_RANGE_WRITE)
1094 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1095
1096 const_eio (FALLOC_FL_KEEP_SIZE)
1097 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE)
1100
1101 const_eio (READDIR_DENTS)
1102 const_eio (READDIR_DIRS_FIRST)
1103 const_eio (READDIR_STAT_ORDER)
1104 const_eio (READDIR_FOUND_UNKNOWN)
1105
1106 const_eio (DT_UNKNOWN)
1107 const_eio (DT_FIFO)
1108 const_eio (DT_CHR)
1109 const_eio (DT_DIR)
1110 const_eio (DT_BLK)
1111 const_eio (DT_REG)
1112 const_eio (DT_LNK)
1113 const_eio (DT_SOCK)
1114 const_eio (DT_WHT)
1115 };
1116
1443 stash = gv_stashpv ("IO::AIO", 1); 1117 aio_stash = gv_stashpv ("IO::AIO" , 1);
1118 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1119 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1120 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1444 1121
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1122 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1123 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1447 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1448 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1449 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1450#ifdef _WIN32
1451 X_MUTEX_CHECK (wrklock);
1452 X_MUTEX_CHECK (reslock);
1453 X_MUTEX_CHECK (reqlock);
1454 X_MUTEX_CHECK (reqwait);
1455 X_MUTEX_CHECK (preadwritelock);
1456 X_MUTEX_CHECK (readdirlock);
1457 1124
1458 X_COND_CHECK (reqwait); 1125 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459#else
1460 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1461 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1462#endif
1463 1126
1464 create_respipe (); 1127 reinit ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467} 1128}
1468 1129
1469void 1130void
1131reinit ()
1132 PROTOTYPE:
1133
1134void
1470max_poll_reqs (int nreqs) 1135max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1136 PROTOTYPE: $
1472 CODE: 1137 CODE:
1473 max_poll_reqs = nreqs; 1138 eio_set_max_poll_reqs (nreqs);
1474 1139
1475void 1140void
1476max_poll_time (double nseconds) 1141max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1142 PROTOTYPE: $
1478 CODE: 1143 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1144 eio_set_max_poll_time (nseconds);
1480 1145
1481void 1146void
1482min_parallel (int nthreads) 1147min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1148 PROTOTYPE: $
1492 CODE: 1149 CODE:
1493 set_max_idle (nthreads); 1150 eio_set_min_parallel (nthreads);
1494 1151
1495int 1152void
1496max_outstanding (int maxreqs) 1153max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1154 PROTOTYPE: $
1498 CODE: 1155 CODE:
1499 RETVAL = max_outstanding; 1156 eio_set_max_parallel (nthreads);
1157
1158void
1159max_idle (unsigned int nthreads)
1160 PROTOTYPE: $
1161 CODE:
1162 eio_set_max_idle (nthreads);
1163
1164void
1165idle_timeout (unsigned int seconds)
1166 PROTOTYPE: $
1167 CODE:
1168 eio_set_idle_timeout (seconds);
1169
1170void
1171max_outstanding (unsigned int maxreqs)
1172 PROTOTYPE: $
1173 CODE:
1500 max_outstanding = maxreqs; 1174 max_outstanding = maxreqs;
1501 OUTPUT:
1502 RETVAL
1503 1175
1504void 1176void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1177aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1178 PPCODE:
1508{ 1179{
1509 dREQ; 1180 dREQ;
1510 1181
1182 req->type = EIO_WD_OPEN;
1183 req_set_path1 (req, pathname);
1184
1185 REQ_SEND;
1186}
1187
1188void
1189aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1190 PPCODE:
1191{
1192 dREQ;
1193
1511 req->type = REQ_OPEN; 1194 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1195 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1196 req->int1 = flags;
1515 req->mode = mode; 1197 req->int2 = mode;
1516 1198
1517 REQ_SEND; 1199 REQ_SEND;
1518} 1200}
1519 1201
1520void 1202void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1203aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1204 ALIAS:
1524 aio_fsync = REQ_FSYNC 1205 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1206 aio_fdatasync = EIO_FDATASYNC
1207 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1208 PPCODE:
1527{ 1209{
1210 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1211 dREQ;
1529 1212
1530 req->type = ix; 1213 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1214 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1215 req->int1 = fd;
1533 1216
1534 REQ_SEND (req); 1217 REQ_SEND;
1535} 1218}
1536 1219
1537void 1220void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1221aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1222 PPCODE:
1541{ 1223{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1224 int fd = s_fileno_croak (fh, 0);
1543 int fd = PerlIO_fileno (io);
1544
1545 if (fd < 0)
1546 croak ("aio_close called with fd-less filehandle");
1547
1548 PerlIO_binmode (io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1225 dREQ;
1552 1226
1553 req->type = REQ_CLOSE; 1227 req->type = EIO_SYNC_FILE_RANGE;
1554 req->sv1 = newSVsv (fh); 1228 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1229 req->int1 = fd;
1230 req->offs = offset;
1231 req->size = nbytes;
1232 req->int2 = flags;
1556 1233
1557 REQ_SEND (req); 1234 REQ_SEND;
1235}
1236
1237void
1238aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1239 PPCODE:
1240{
1241 int fd = s_fileno_croak (fh, 0);
1242 dREQ;
1243
1244 req->type = EIO_FALLOCATE;
1245 req->sv1 = newSVsv (fh);
1246 req->int1 = fd;
1247 req->int2 = mode;
1248 req->offs = offset;
1249 req->size = len;
1250
1251 REQ_SEND;
1252}
1253
1254void
1255aio_close (SV *fh, SV *callback = &PL_sv_undef)
1256 PPCODE:
1257{
1258 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1259 int fd = s_fileno_croak (fh, 0);
1260 dREQ;
1261
1262 if (expect_false (close_fd < 0))
1263 {
1264 int pipefd [2];
1265
1266 if (
1267#ifdef _WIN32
1268 _pipe (pipefd, 1, _O_BINARY) < 0
1269#else
1270 pipe (pipefd) < 0
1271 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1272#endif
1273 || close (pipefd [1]) < 0
1274 )
1275 abort (); /*D*/
1276
1277 close_fd = pipefd [0];
1558 } 1278 }
1559}
1560 1279
1280 req->type = EIO_DUP2;
1281 req->int1 = close_fd;
1282 req->sv2 = newSVsv (fh);
1283 req->int2 = fd;
1284
1285 REQ_SEND;
1286}
1287
1561void 1288void
1289aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1290 PPCODE:
1291{
1292 int fd = s_fileno_croak (fh, 0);
1293 dREQ;
1294
1295 req->type = EIO_SEEK;
1296 req->sv1 = newSVsv (fh);
1297 req->int1 = fd;
1298 req->offs = SvVAL64 (offset);
1299 req->int2 = whence;
1300
1301 REQ_SEND;
1302}
1303
1304void
1562aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1305aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1563 ALIAS: 1306 ALIAS:
1564 aio_read = REQ_READ 1307 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1308 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1309 PPCODE:
1568{ 1310{
1569 STRLEN svlen; 1311 STRLEN svlen;
1312 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1313 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1314 UV len = SvUV (length);
1572 1315
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1316 if (dataoffset < 0)
1577 dataoffset += svlen; 1317 dataoffset += svlen;
1578 1318
1579 if (dataoffset < 0 || dataoffset > svlen) 1319 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1320 croak ("dataoffset outside of data scalar");
1581 1321
1582 if (ix == REQ_WRITE) 1322 if (ix == EIO_WRITE)
1583 { 1323 {
1584 /* write: check length and adjust. */ 1324 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1325 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1326 len = svlen - dataoffset;
1587 } 1327 }
1588 else 1328 else
1589 { 1329 {
1590 /* read: grow scalar as necessary */ 1330 /* read: check type and grow scalar as necessary */
1331 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1591 svptr = SvGROW (data, len + dataoffset + 1); 1332 svptr = sv_grow (data, len + dataoffset + 1);
1333 else if (SvCUR (data) < len + dataoffset)
1334 croak ("length + dataoffset outside of scalar, and cannot grow");
1592 } 1335 }
1593
1594 if (len < 0)
1595 croak ("length must not be negative");
1596 1336
1597 { 1337 {
1598 dREQ; 1338 dREQ;
1599 1339
1600 req->type = ix; 1340 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1341 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1342 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1343 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1344 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1345 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1346 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1347 req->stroffset = dataoffset;
1609 1348
1610 if (!SvREADONLY (data)) 1349 if (!SvREADONLY (data))
1611 { 1350 {
1612 SvREADONLY_on (data); 1351 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1355 REQ_SEND;
1617 } 1356 }
1618} 1357}
1619 1358
1620void 1359void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1360aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1622 PROTOTYPE: $$;$ 1361 ALIAS:
1362 aio_ioctl = EIO_IOCTL
1363 aio_fcntl = EIO_FCNTL
1623 PPCODE: 1364 PPCODE:
1624{ 1365{
1625 SV *data; 1366 int fd = s_fileno_croak (fh, 0);
1626 dREQ; 1367 char *svptr;
1627 1368
1628 data = newSV (NAME_MAX); 1369 if (SvPOK (arg) || !SvNIOK (arg))
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK;
1632 req->sv1 = newSVsv (path);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636
1637 REQ_SEND;
1638}
1639
1640void
1641aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1642 PROTOTYPE: $$$$;$
1643 PPCODE:
1644{
1645 dREQ;
1646
1647 req->type = REQ_SENDFILE;
1648 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1650 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1652 req->offs = SvVAL64 (in_offset);
1653 req->size = length;
1654
1655 REQ_SEND;
1656}
1657
1658void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE:
1662{
1663 dREQ;
1664
1665 req->type = REQ_READAHEAD;
1666 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1668 req->offs = SvVAL64 (offset);
1669 req->size = length;
1670
1671 REQ_SEND;
1672}
1673
1674void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS:
1677 aio_stat = REQ_STAT
1678 aio_lstat = REQ_LSTAT
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->ptr2 = malloc (sizeof (Stat_t));
1684 if (!req->ptr2)
1685 { 1370 {
1686 req_destroy (req); 1371 STRLEN svlen;
1687 croak ("out of memory during aio_stat statdata allocation"); 1372 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1688 } 1373#ifdef IOCPARM_LEN
1374 STRLEN need = IOCPARM_LEN (request);
1375#else
1376 STRLEN need = 256;
1377#endif
1689 1378
1690 req->flags |= FLAG_PTR2_FREE; 1379 if (svlen < need)
1691 req->sv1 = newSVsv (fh_or_path); 1380 svptr = SvGROW (arg, need);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 } 1381 }
1698 else 1382 else
1383 svptr = (char *)SvIV (arg);
1384
1699 { 1385 {
1386 dREQ;
1387
1700 req->type = REQ_FSTAT; 1388 req->type = ix;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1389 req->sv1 = newSVsv (fh);
1390 req->int1 = fd;
1391 req->int2 = (long)request;
1392 req->sv2 = SvREFCNT_inc (arg);
1393 req->ptr2 = svptr;
1394
1395 REQ_SEND;
1702 } 1396 }
1397}
1398
1399void
1400aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1401 ALIAS:
1402 aio_readlink = EIO_READLINK
1403 aio_realpath = EIO_REALPATH
1404 PPCODE:
1405{
1406 dREQ;
1407
1408 req->type = ix;
1409 req_set_path1 (req, pathname);
1703 1410
1704 REQ_SEND; 1411 REQ_SEND;
1705} 1412}
1706 1413
1707void 1414void
1415aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1416 PPCODE:
1417{
1418 int ifd = s_fileno_croak (in_fh , 0);
1419 int ofd = s_fileno_croak (out_fh, 1);
1420 dREQ;
1421
1422 req->type = EIO_SENDFILE;
1423 req->sv1 = newSVsv (out_fh);
1424 req->int1 = ofd;
1425 req->sv2 = newSVsv (in_fh);
1426 req->int2 = ifd;
1427 req->offs = in_offset;
1428 req->size = length;
1429
1430 REQ_SEND;
1431}
1432
1433void
1434aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1435 PPCODE:
1436{
1437 int fd = s_fileno_croak (fh, 0);
1438 dREQ;
1439
1440 req->type = EIO_READAHEAD;
1441 req->sv1 = newSVsv (fh);
1442 req->int1 = fd;
1443 req->offs = offset;
1444 req->size = length;
1445
1446 REQ_SEND;
1447}
1448
1449void
1450aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1451 ALIAS:
1452 aio_stat = EIO_STAT
1453 aio_lstat = EIO_LSTAT
1454 aio_statvfs = EIO_STATVFS
1455 PPCODE:
1456{
1457 dREQ;
1458
1459 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1460
1461 REQ_SEND;
1462}
1463
1464UV
1465major (UV dev)
1466 ALIAS:
1467 minor = 1
1468 CODE:
1469 RETVAL = ix ? minor (dev) : major (dev);
1470 OUTPUT:
1471 RETVAL
1472
1473UV
1474makedev (UV maj, UV min)
1475 CODE:
1476 RETVAL = makedev (maj, min);
1477 OUTPUT:
1478 RETVAL
1479
1480void
1708aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1481aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1709 PPCODE: 1482 PPCODE:
1710{ 1483{
1711 dREQ; 1484 dREQ;
1712 1485
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1486 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1487 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1488 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1716
1717 if (SvPOK (fh_or_path))
1718 {
1719 req->type = REQ_UTIME;
1720 req->ptr1 = SvPVbyte_nolen (req->sv1);
1721 }
1722 else
1723 {
1724 req->type = REQ_FUTIME;
1725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1726 }
1727 1489
1728 REQ_SEND; 1490 REQ_SEND;
1729} 1491}
1730 1492
1731void 1493void
1732aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1494aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1733 PPCODE: 1495 PPCODE:
1734{ 1496{
1735 dREQ; 1497 dREQ;
1736 1498
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1499 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1500 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1740 if (SvPOK (fh_or_path))
1741 {
1742 req->type = REQ_TRUNCATE;
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 }
1745 else
1746 {
1747 req->type = REQ_FTRUNCATE;
1748 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1749 }
1750 1501
1751 REQ_SEND; 1502 REQ_SEND;
1752} 1503}
1753 1504
1754void 1505void
1755aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1506aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1756 PPCODE: 1507 PPCODE:
1757{ 1508{
1758 dREQ; 1509 dREQ;
1759 1510
1760 req->mode = mode; 1511 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1512 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1762
1763 if (SvPOK (fh_or_path))
1764 {
1765 req->type = REQ_CHMOD;
1766 req->ptr1 = SvPVbyte_nolen (req->sv1);
1767 }
1768 else
1769 {
1770 req->type = REQ_FCHMOD;
1771 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1772 }
1773 1513
1774 REQ_SEND; 1514 REQ_SEND;
1775} 1515}
1776 1516
1777void 1517void
1778aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1518aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1779 PPCODE: 1519 PPCODE:
1780{ 1520{
1781 dREQ; 1521 dREQ;
1782 1522
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1523 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1524 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1525 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786
1787 if (SvPOK (fh_or_path))
1788 {
1789 req->type = REQ_CHOWN;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 }
1792 else
1793 {
1794 req->type = REQ_FCHOWN;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1796 }
1797 1526
1798 REQ_SEND; 1527 REQ_SEND;
1799} 1528}
1800 1529
1801void 1530void
1531aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1532 PPCODE:
1533{
1534 dREQ;
1535
1536 req->type = EIO_READDIR;
1537 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1538
1539 if (flags & EIO_READDIR_DENTS)
1540 req->int1 |= EIO_READDIR_CUSTOM2;
1541
1542 req_set_path1 (req, pathname);
1543
1544 REQ_SEND;
1545}
1546
1547void
1548aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1549 PPCODE:
1550{
1551 dREQ;
1552
1553 req->type = EIO_MKDIR;
1554 req->int2 = mode;
1555 req_set_path1 (req, pathname);
1556
1557 REQ_SEND;
1558}
1559
1560void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1561aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1803 ALIAS: 1562 ALIAS:
1804 aio_unlink = REQ_UNLINK 1563 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1564 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1565 aio_readdir = EIO_READDIR
1807 PPCODE: 1566 PPCODE:
1808{ 1567{
1809 dREQ; 1568 dREQ;
1810 1569
1811 req->type = ix; 1570 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1571 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814 1572
1815 REQ_SEND; 1573 REQ_SEND;
1816} 1574}
1817 1575
1818void 1576void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1577aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1578 ALIAS:
1579 aio_link = EIO_LINK
1580 aio_symlink = EIO_SYMLINK
1581 aio_rename = EIO_RENAME
1820 PPCODE: 1582 PPCODE:
1821{ 1583{
1822 dREQ; 1584 eio_wd wd2 = 0;
1823
1824 req->type = REQ_MKDIR;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode;
1828
1829 REQ_SEND;
1830}
1831
1832void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1834 ALIAS:
1835 aio_link = REQ_LINK
1836 aio_symlink = REQ_SYMLINK
1837 aio_rename = REQ_RENAME
1838 PPCODE:
1839{
1840 dREQ; 1585 dREQ;
1841 1586
1842 req->type = ix; 1587 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 1588 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 1589 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 1590 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1591
1848 REQ_SEND; 1592 REQ_SEND;
1849} 1593}
1850 1594
1851void 1595void
1852aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1596aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1853 PPCODE: 1597 PPCODE:
1854{ 1598{
1855 dREQ; 1599 dREQ;
1856 1600
1857 req->type = REQ_MKNOD; 1601 req->type = EIO_MKNOD;
1858 req->sv1 = newSVsv (pathname);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1);
1860 req->mode = (mode_t)mode; 1602 req->int2 = (mode_t)mode;
1861 req->offs = dev; 1603 req->offs = dev;
1604 req_set_path1 (req, pathname);
1862 1605
1863 REQ_SEND; 1606 REQ_SEND;
1864} 1607}
1865 1608
1866void 1609void
1610aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1611 ALIAS:
1612 aio_mtouch = EIO_MTOUCH
1613 aio_msync = EIO_MSYNC
1614 PPCODE:
1615{
1616 STRLEN svlen;
1617 char *svptr = SvPVbyte (data, svlen);
1618 UV len = SvUV (length);
1619
1620 if (offset < 0)
1621 offset += svlen;
1622
1623 if (offset < 0 || offset > svlen)
1624 croak ("offset outside of scalar");
1625
1626 if (!SvOK (length) || len + offset > svlen)
1627 len = svlen - offset;
1628
1629 {
1630 dREQ;
1631
1632 req->type = ix;
1633 req->sv2 = SvREFCNT_inc (data);
1634 req->ptr2 = (char *)svptr + offset;
1635 req->size = len;
1636 req->int1 = flags;
1637
1638 REQ_SEND;
1639 }
1640}
1641
1642void
1643aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1644 PPCODE:
1645{
1646 STRLEN svlen;
1647 char *svptr = SvPVbyte (data, svlen);
1648 UV len = SvUV (length);
1649
1650 if (offset < 0)
1651 offset += svlen;
1652
1653 if (offset < 0 || offset > svlen)
1654 croak ("offset outside of scalar");
1655
1656 if (!SvOK (length) || len + offset > svlen)
1657 len = svlen - offset;
1658
1659 {
1660 dREQ;
1661
1662 req->type = EIO_MLOCK;
1663 req->sv2 = SvREFCNT_inc (data);
1664 req->ptr2 = (char *)svptr + offset;
1665 req->size = len;
1666
1667 REQ_SEND;
1668 }
1669}
1670
1671void
1672aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1673 PPCODE:
1674{
1675 dREQ;
1676
1677 req->type = EIO_MLOCKALL;
1678 req->int1 = flags;
1679
1680 REQ_SEND;
1681}
1682
1683void
1684aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1685 PPCODE:
1686{
1687 int fd = s_fileno_croak (fh, 0);
1688 dREQ;
1689
1690 req->type = EIO_CUSTOM;
1691 req->sv1 = newSVsv (fh);
1692 req->int1 = fd;
1693
1694 req->feed = fiemap;
1695#if HAVE_FIEMAP
1696 /* keep our fingers crossed that the next two types are 64 bit */
1697 req->offs = start;
1698 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1699 req->int2 = flags;
1700 req->int3 = SvOK (count) ? SvIV (count) : -1;
1701#endif
1702
1703 REQ_SEND;
1704}
1705
1706void
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 1707aio_busy (double delay, SV *callback = &PL_sv_undef)
1868 PPCODE: 1708 PPCODE:
1869{ 1709{
1870 dREQ; 1710 dREQ;
1871 1711
1872 req->type = REQ_BUSY; 1712 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 1713 req->nv1 = delay < 0. ? 0. : delay;
1874 1714
1875 REQ_SEND; 1715 REQ_SEND;
1876} 1716}
1877 1717
1878void 1718void
1879aio_group (SV *callback=&PL_sv_undef) 1719aio_group (SV *callback = &PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 1720 PPCODE:
1882{ 1721{
1883 dREQ; 1722 dREQ;
1884 1723
1885 req->type = REQ_GROUP; 1724 req->type = EIO_GROUP;
1886 1725
1726 PUTBACK;
1887 req_send (req); 1727 req_submit (req);
1728 SPAGAIN;
1729
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1730 XPUSHs (req_sv (req, aio_grp_stash));
1889} 1731}
1890 1732
1891void 1733void
1892aio_nop (SV *callback=&PL_sv_undef) 1734aio_nop (SV *callback = &PL_sv_undef)
1735 ALIAS:
1736 aio_nop = EIO_NOP
1737 aio_sync = EIO_SYNC
1893 PPCODE: 1738 PPCODE:
1894{ 1739{
1895 dREQ; 1740 dREQ;
1896 1741
1897 req->type = REQ_NOP; 1742 req->type = ix;
1898 1743
1899 REQ_SEND; 1744 REQ_SEND;
1900} 1745}
1901 1746
1902int 1747int
1903aioreq_pri (int pri = 0) 1748aioreq_pri (int pri = NO_INIT)
1904 PROTOTYPE: ;$
1905 CODE: 1749 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 1750 RETVAL = next_pri;
1907 if (items > 0) 1751 if (items > 0)
1908 { 1752 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 1753 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 1754 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 1755 next_pri = pri;
1912 } 1756 }
1913 OUTPUT: 1757 OUTPUT:
1914 RETVAL 1758 RETVAL
1915 1759
1916void 1760void
1917aioreq_nice (int nice = 0) 1761aioreq_nice (int nice = 0)
1918 CODE: 1762 CODE:
1919 nice = next_pri - nice; 1763 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 1764 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 1765 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 1766 next_pri = nice;
1923 1767
1924void 1768void
1925flush () 1769flush ()
1926 PROTOTYPE:
1927 CODE: 1770 CODE:
1928 while (nreqs) 1771 while (eio_nreqs ())
1929 { 1772 {
1930 poll_wait (); 1773 poll_wait ();
1931 poll_cb (); 1774 poll_cb ();
1932 } 1775 }
1933 1776
1934int 1777int
1935poll() 1778poll ()
1936 PROTOTYPE:
1937 CODE: 1779 CODE:
1938 poll_wait (); 1780 poll_wait ();
1939 RETVAL = poll_cb (); 1781 RETVAL = poll_cb ();
1940 OUTPUT: 1782 OUTPUT:
1941 RETVAL 1783 RETVAL
1942 1784
1943int 1785int
1944poll_fileno() 1786poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 1787 CODE:
1947 RETVAL = respipe [0]; 1788 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 1789 OUTPUT:
1949 RETVAL 1790 RETVAL
1950 1791
1951int 1792int
1952poll_cb(...) 1793poll_cb (...)
1953 PROTOTYPE: 1794 PROTOTYPE:
1954 CODE: 1795 CODE:
1955 RETVAL = poll_cb (); 1796 RETVAL = poll_cb ();
1956 OUTPUT: 1797 OUTPUT:
1957 RETVAL 1798 RETVAL
1958 1799
1959void 1800void
1960poll_wait() 1801poll_wait ()
1961 PROTOTYPE:
1962 CODE: 1802 CODE:
1963 poll_wait (); 1803 poll_wait ();
1964 1804
1965void
1966setsig (int signum = SIGIO)
1967 PROTOTYPE: ;$
1968 CODE:
1969{
1970 if (block_sig_level)
1971 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1972
1973 X_LOCK (reslock);
1974 main_tid = pthread_self ();
1975 main_sig = signum;
1976 X_UNLOCK (reslock);
1977
1978 if (main_sig && npending)
1979 pthread_kill (main_tid, main_sig);
1980}
1981
1982void
1983aio_block (SV *cb)
1984 PROTOTYPE: &
1985 PPCODE:
1986{
1987 int count;
1988
1989 block_sig ();
1990 PUSHMARK (SP);
1991 PUTBACK;
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1993 SPAGAIN;
1994 unblock_sig ();
1995
1996 if (SvTRUE (ERRSV))
1997 croak (0);
1998
1999 XSRETURN (count);
2000}
2001
2002int 1805int
2003nreqs() 1806nreqs ()
2004 PROTOTYPE:
2005 CODE: 1807 CODE:
2006 RETVAL = nreqs; 1808 RETVAL = eio_nreqs ();
2007 OUTPUT: 1809 OUTPUT:
2008 RETVAL 1810 RETVAL
2009 1811
2010int 1812int
2011nready() 1813nready ()
2012 PROTOTYPE:
2013 CODE: 1814 CODE:
2014 RETVAL = get_nready (); 1815 RETVAL = eio_nready ();
2015 OUTPUT: 1816 OUTPUT:
2016 RETVAL 1817 RETVAL
2017 1818
2018int 1819int
2019npending() 1820npending ()
2020 PROTOTYPE:
2021 CODE: 1821 CODE:
2022 RETVAL = get_npending (); 1822 RETVAL = eio_npending ();
2023 OUTPUT: 1823 OUTPUT:
2024 RETVAL 1824 RETVAL
2025 1825
2026int 1826int
2027nthreads() 1827nthreads ()
2028 PROTOTYPE:
2029 CODE: 1828 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1829 RETVAL = eio_nthreads ();
2031 RETVAL = started;
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2033 OUTPUT: 1830 OUTPUT:
2034 RETVAL 1831 RETVAL
2035 1832
1833int
1834fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1835 CODE:
1836 RETVAL = posix_fadvise (fh, offset, length, advice);
1837 OUTPUT:
1838 RETVAL
1839
1840IV
1841sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1842 CODE:
1843 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1844 OUTPUT:
1845 RETVAL
1846
1847void
1848mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1849 PPCODE:
1850 sv_unmagic (scalar, MMAP_MAGIC);
1851{
1852 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1853 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1854 if (addr == (void *)-1)
1855 XSRETURN_NO;
1856
1857 sv_force_normal (scalar);
1858
1859 /* we store the length in mg_obj, as namlen is I32 :/ */
1860 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1861 ->mg_obj = (SV *)length;
1862
1863 SvUPGRADE (scalar, SVt_PV); /* nop... */
1864
1865 if (!(prot & PROT_WRITE))
1866 SvREADONLY_on (scalar);
1867
1868 if (SvLEN (scalar))
1869 Safefree (SvPVX (scalar));
1870
1871 SvPVX (scalar) = (char *)addr;
1872 SvCUR_set (scalar, length);
1873 SvLEN_set (scalar, 0);
1874 SvPOK_only (scalar);
1875
1876 XSRETURN_YES;
1877}
1878
1879void
1880munmap (SV *scalar)
1881 CODE:
1882 sv_unmagic (scalar, MMAP_MAGIC);
1883
1884int
1885madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1886 ALIAS:
1887 mprotect = 1
1888 CODE:
1889{
1890 STRLEN svlen;
1891 void *addr = SvPVbyte (scalar, svlen);
1892 STRLEN len = SvUV (length);
1893
1894 if (offset < 0)
1895 offset += svlen;
1896
1897 if (offset < 0 || offset > svlen)
1898 croak ("offset outside of scalar");
1899
1900 if (!SvOK (length) || len + offset > svlen)
1901 len = svlen - offset;
1902
1903 addr = (void *)(((intptr_t)addr) + offset);
1904 eio_page_align (&addr, &len);
1905
1906 switch (ix)
1907 {
1908 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1909 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1910 }
1911}
1912 OUTPUT:
1913 RETVAL
1914
1915int
1916munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1917 CODE:
1918{
1919 STRLEN svlen;
1920 void *addr = SvPVbyte (scalar, svlen);
1921 size_t len = SvUV (length);
1922
1923 if (offset < 0)
1924 offset += svlen;
1925
1926 if (offset < 0 || offset > svlen)
1927 croak ("offset outside of scalar");
1928
1929 if (!SvOK (length) || len + offset > svlen)
1930 len = svlen - offset;
1931
1932 addr = (void *)(((intptr_t)addr) + offset);
1933 eio_page_align (&addr, &len);
1934#if _POSIX_MEMLOCK_RANGE
1935 RETVAL = munlock (addr, len);
1936#else
1937 RETVAL = EIO_ENOSYS ();
1938#endif
1939}
1940 OUTPUT:
1941 RETVAL
1942
1943int
1944munlockall ()
1945 CODE:
1946#if _POSIX_MEMLOCK
1947 munlockall ();
1948#else
1949 RETVAL = EIO_ENOSYS ();
1950#endif
1951 OUTPUT:
1952 RETVAL
1953
1954int
1955splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1956 CODE:
1957{
1958#if HAVE_LINUX_SPLICE
1959 loff_t off_in_, off_out_;
1960 RETVAL = splice (
1961 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1962 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1963 length, flags
1964 );
1965#else
1966 RETVAL = EIO_ENOSYS ();
1967#endif
1968}
1969 OUTPUT:
1970 RETVAL
1971
1972int
1973tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1974 CODE:
1975#if HAVE_LINUX_SPLICE
1976 RETVAL = tee (rfh, wfh, length, flags);
1977#else
1978 RETVAL = EIO_ENOSYS ();
1979#endif
1980 OUTPUT:
1981 RETVAL
1982
1983int
1984pipesize (aio_rfd rfh, int new_size = -1)
1985 PROTOTYPE: $;$
1986 CODE:
1987#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1988 if (new_size >= 0)
1989 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1990 else
1991 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1992#else
1993 errno = ENOSYS;
1994 RETVAL = -1;
1995#endif
1996 OUTPUT:
1997 RETVAL
1998
1999void
2000pipe2 (int flags = 0)
2001 PROTOTYPE: ;$
2002 PPCODE:
2003{
2004 int fd[2];
2005 int res;
2006
2007 if (flags)
2008#if HAVE_PIPE2
2009 res = pipe2 (fd, flags);
2010#else
2011 res = (errno = ENOSYS, -1);
2012#endif
2013 else
2014 res = pipe (fd);
2015
2016 if (!res)
2017 {
2018 EXTEND (SP, 2);
2019 PUSHs (newmortalFH (fd[0], O_RDONLY));
2020 PUSHs (newmortalFH (fd[1], O_WRONLY));
2021 }
2022}
2023
2024void _on_next_submit (SV *cb)
2025 CODE:
2026 SvREFCNT_dec (on_next_submit);
2027 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2028
2036PROTOTYPES: DISABLE 2029PROTOTYPES: DISABLE
2030
2031MODULE = IO::AIO PACKAGE = IO::AIO::WD
2032
2033BOOT:
2034{
2035 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2036 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2037}
2038
2039void
2040DESTROY (SV *self)
2041 CODE:
2042{
2043 aio_wd wd = SvAIO_WD (self);
2044#if HAVE_AT
2045 {
2046 SV *callback = &PL_sv_undef;
2047 dREQ; /* clobbers next_pri :/ */
2048 next_pri = req->pri; /* restore next_pri */
2049 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2050 req->type = EIO_WD_CLOSE;
2051 req->wd = wd;
2052 REQ_SEND;
2053 }
2054#else
2055 eio_wd_close_sync (wd);
2056#endif
2057}
2037 2058
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2059MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 2060
2040void 2061void
2041cancel (aio_req_ornot req) 2062cancel (aio_req_ornot req)
2042 CODE: 2063 CODE:
2043 req_cancel (req); 2064 eio_cancel (req);
2044 2065
2045void 2066void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2067cb (aio_req_ornot req, SV *callback = NO_INIT)
2047 CODE: 2068 PPCODE:
2069{
2070 if (GIMME_V != G_VOID)
2071 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2072
2073 if (items > 1)
2074 {
2075 SV *cb_cv = get_cb (callback);
2076
2048 SvREFCNT_dec (req->callback); 2077 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 2078 req->callback = SvREFCNT_inc (cb_cv);
2079 }
2080}
2050 2081
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2082MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 2083
2053void 2084void
2054add (aio_req grp, ...) 2085add (aio_req grp, ...)
2055 PPCODE: 2086 PPCODE:
2056{ 2087{
2057 int i; 2088 int i;
2058 aio_req req;
2059
2060 if (main_sig && !block_sig_level)
2061 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2062 2089
2063 if (grp->int1 == 2) 2090 if (grp->int1 == 2)
2064 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2091 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2065 2092
2066 for (i = 1; i < items; ++i ) 2093 for (i = 1; i < items; ++i )
2067 { 2094 {
2095 aio_req req;
2096
2068 if (GIMME_V != G_VOID) 2097 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2098 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 2099
2071 req = SvAIO_REQ (ST (i)); 2100 req = SvAIO_REQ (ST (i));
2072 2101
2073 if (req) 2102 if (req)
2074 { 2103 eio_grp_add (grp, req);
2075 ++grp->size;
2076 req->grp = grp;
2077
2078 req->grp_prev = 0;
2079 req->grp_next = grp->grp_first;
2080
2081 if (grp->grp_first)
2082 grp->grp_first->grp_prev = req;
2083
2084 grp->grp_first = req;
2085 }
2086 } 2104 }
2087} 2105}
2088 2106
2089void 2107void
2090cancel_subs (aio_req_ornot req) 2108cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 2117 AV *av;
2100 2118
2101 grp->errorno = errno; 2119 grp->errorno = errno;
2102 2120
2103 av = newAV (); 2121 av = newAV ();
2122 av_extend (av, items - 1);
2104 2123
2105 for (i = 1; i < items; ++i ) 2124 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 2125 av_push (av, newSVsv (ST (i)));
2107 2126
2108 SvREFCNT_dec (grp->sv1); 2127 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 2134 grp->errorno = errorno;
2116 2135
2117void 2136void
2118limit (aio_req grp, int limit) 2137limit (aio_req grp, int limit)
2119 CODE: 2138 CODE:
2120 grp->int2 = limit; 2139 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 2140
2123void 2141void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 2142feed (aio_req grp, SV *callback = &PL_sv_undef)
2125 CODE: 2143 CODE:
2126{ 2144{
2127 SvREFCNT_dec (grp->sv2); 2145 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 2146 grp->sv2 = newSVsv (callback);
2147 grp->feed = aio_grp_feed;
2129 2148
2130 if (grp->int2 <= 0) 2149 if (grp->int2 <= 0)
2131 grp->int2 = 2; 2150 grp->int2 = 2;
2132 2151
2133 aio_grp_feed (grp); 2152 eio_grp_limit (grp, grp->int2);
2134} 2153}
2135 2154

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