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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.224 by root, Thu Oct 11 03:20:52 2012 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
18#ifdef _WIN32 42#ifdef _WIN32
19 43
20# define SIGIO 0 44 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 45
22#undef malloc 46 #undef malloc
23#undef free 47 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 48 #undef open
27# undef read 49 #undef read
28# undef write 50 #undef write
51 #undef send
52 #undef recv
29# undef stat 53 #undef stat
54 #undef lstat
30# undef fstat 55 #undef fstat
31# define lstat stat
32# undef truncate 56 #undef truncate
33# undef ftruncate 57 #undef ftruncate
34# undef open 58 #undef open
59 #undef link
35# undef close 60 #undef close
36# undef unlink 61 #undef unlink
62 #undef mkdir
37# undef rmdir 63 #undef rmdir
38# undef rename 64 #undef rename
39# undef lseek 65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
40 75
41# define chown(a,b,c) (errno = ENOSYS, -1) 76 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 77 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 78
55#else 79#else
56 80
57# include "autoconf/config.h"
58# include <sys/time.h> 81 #include <sys/time.h>
59# include <sys/select.h> 82 #include <sys/select.h>
60# include <unistd.h> 83 #include <unistd.h>
61# include <utime.h> 84 #include <utime.h>
62# include <signal.h> 85 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 86
65#endif 87 #define EIO_STRUCT_STAT Stat_t
66 88
67#if HAVE_SENDFILE 89#endif
68# if __linux 90
69# include <sys/sendfile.h> 91/*****************************************************************************/
70# elif __freebsd 92
71# include <sys/socket.h> 93#if __GNUC__ >= 3
72# include <sys/uio.h> 94# define expect(expr,value) __builtin_expect ((expr),(value))
73# elif __hpux 95#else
74# include <sys/socket.h> 96# define expect(expr,value) (expr)
75# elif __solaris /* not yet */ 97#endif
76# include <sys/sendfile.h> 98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
77# else 140# else
78# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 142# endif
80#endif 143#endif
81 144
82/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 146#include "def0.h"
84 147
85/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
86#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#endif 150#endif
89 151#ifndef major
90/* buffer size for various temporary buffers */ 152# define major(dev) ((dev) >> 8)
91#define AIO_BUFSIZE 65536
92
93/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8
95# define SvVAL64 SvIV
96#else
97# define SvVAL64 SvNV
98#endif 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
99 157
100#define dBUF \ 158#ifndef PAGESIZE
101 char *aio_buf; \ 159# define PAGESIZE sysconf (_SC_PAGESIZE)
102 X_LOCK (wrklock); \ 160#endif
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
104 X_UNLOCK (wrklock); \
105 if (!aio_buf) \
106 return -1;
107 161
108typedef SV SV8; /* byte-sv, used for argument-checking */ 162/*****************************************************************************/
109 163
110enum { 164static void
111 REQ_QUIT, 165fiemap (eio_req *req)
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126};
127
128#define AIO_REQ_KLASS "IO::AIO::REQ"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130
131typedef struct aio_cb
132{ 166{
133 struct aio_cb *volatile next; 167 req->result = -1;
134 168
135 SV *callback; 169#if HAVE_FIEMAP
136 SV *sv1, *sv2; 170 /* assume some c99 */
137 void *ptr1, *ptr2; 171 struct fiemap *fiemap = 0;
138 off_t offs; 172 size_t end_offset;
139 size_t size; 173 int count = req->int3;
140 ssize_t result;
141 double nv1, nv2;
142 174
143 STRLEN stroffset; 175 req->flags |= EIO_FLAG_PTR1_FREE;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 176
149 unsigned char flags; 177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
150 unsigned char pri; 178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
151 181
152 SV *self; /* the perl counterpart of this request, if any */ 182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 183 errno = ENOMEM;
154} aio_cb; 184 if (!fiemap)
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req;
163typedef aio_cb *aio_req_ornot;
164
165enum {
166 PRI_MIN = -4,
167 PRI_MAX = 4,
168
169 DEFAULT_PRI = 0,
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return; 185 return;
196 186
197 if (!main_sig) 187 req->ptr1 = fiemap;
188
189 fiemap->fm_start = req->offs;
190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
193
194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
198 return; 195 return;
199 196
200 sigemptyset (&ss); 197 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 198 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 200 goto done;
204 201
205void unblock_sig () 202 /* else we have to loop -
206{ 203 * it would be tempting (atcually I tried that first) to just query the
207 sigset_t ss; 204 * number of extents needed, but linux often feels like not returning all
205 * extents, without telling us it left any out. this complicates
206 * this quite a bit.
207 */
208 208
209 if (--block_sig_level) 209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 210
212 if (!main_sig) 211 for (;;)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 { 212 {
245 closedir (wrk->dirp); 213 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
246 wrk->dirp = 0; 214 char scratch[3072];
247 } 215 struct fiemap *incmap = (struct fiemap *)scratch;
248 216
249 if (wrk->dbuf) 217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 220 incmap->fm_flags = fiemap->fm_flags;
253 } 221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 222
256static void worker_free (worker *wrk) 223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0; 224 return;
351 225
352 --q->size; 226 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
353 227 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 for (pri = NUM_PRI; pri--; ) 228 errno = ENOMEM;
355 {
356 aio_req req = q->qs[pri];
357
358 if (req) 229 if (!fiemap)
230 return;
231
232 req->ptr1 = fiemap;
233
234 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 235 {
360 if (!(q->qs[pri] = req->next)) 236 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 237
363 return req; 238 if (e->fe_logical + e->fe_length >= end_offset)
239 goto done;
240
241 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
242
243 if (e->fe_flags & FIEMAP_EXTENT_LAST)
244 goto done;
245
364 } 246 }
365 } 247 }
366 248
367 abort (); 249done:
368} 250 req->result = 0;
369 251
370static int poll_cb (); 252#else
371static int req_invoke (aio_req req); 253 errno = ENOSYS;
254#endif
255}
256
257/*****************************************************************************/
258
259enum {
260 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
261};
262
263typedef eio_req *aio_req;
264typedef eio_req *aio_req_ornot;
265typedef eio_wd aio_wd;
266
267static SV *on_next_submit;
268static int next_pri = EIO_PRI_DEFAULT;
269static int max_outstanding;
270
271static s_epipe respipe;
272
372static void req_destroy (aio_req req); 273static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 274static void req_cancel (aio_req req);
374 275
276static void
277want_poll (void)
278{
279 /* write a dummy byte to the pipe so fh becomes ready */
280 s_epipe_signal (&respipe);
281}
282
283static void
284done_poll (void)
285{
286 /* read any signals sent by the worker threads */
287 s_epipe_drain (&respipe);
288}
289
375/* must be called at most once */ 290/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 291static SV *
292req_sv (aio_req req, HV *stash)
377{ 293{
378 if (!req->self) 294 if (!req->self)
379 { 295 {
380 req->self = (SV *)newHV (); 296 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 297 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 298 }
383 299
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 300 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 301}
386 302
387static aio_req SvAIO_REQ (SV *sv) 303static SV *
304newSVaio_wd (aio_wd wd)
305{
306 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
307}
308
309static aio_req
310SvAIO_REQ (SV *sv)
388{ 311{
389 MAGIC *mg; 312 MAGIC *mg;
390 313
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 314 if (!SvROK (sv)
315 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
316 || (SvSTASH (SvRV (sv)) != aio_grp_stash
317 && SvSTASH (SvRV (sv)) != aio_req_stash
318 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 319 croak ("object of class IO::AIO::REQ expected");
393 320
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 321 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 322
396 return mg ? (aio_req)mg->mg_ptr : 0; 323 return mg ? (aio_req)mg->mg_ptr : 0;
397} 324}
398 325
326static aio_wd
327SvAIO_WD (SV *sv)
328{
329 if (!SvROK (sv)
330 || SvTYPE (SvRV (sv)) != SVt_PVMG
331 || SvSTASH (SvRV (sv)) != aio_wd_stash)
332 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333
334 return (aio_wd)(long)SvIVX (SvRV (sv));
335}
336
337static void
399static void aio_grp_feed (aio_req grp) 338aio_grp_feed (aio_req grp)
400{ 339{
401 block_sig (); 340 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 341 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 342 dSP;
410 343
411 ENTER; 344 ENTER;
412 SAVETMPS; 345 SAVETMPS;
413 PUSHMARK (SP); 346 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 347 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 348 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 349 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 350 SPAGAIN;
418 FREETMPS; 351 FREETMPS;
419 LEAVE; 352 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 353 }
430
431 unblock_sig ();
432} 354}
433 355
434static void aio_grp_dec (aio_req grp) 356static void
357req_submit (eio_req *req)
435{ 358{
436 --grp->size; 359 eio_submit (req);
437 360
438 /* call feeder, if applicable */ 361 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 362 {
444 block_sig (); 363 dSP;
364 SV *cb = sv_2mortal (on_next_submit);
445 365
446 if (!req_invoke (grp)) 366 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 367
453 req_destroy (grp); 368 PUSHMARK (SP);
454 unblock_sig (); 369 PUTBACK;
370 call_sv (cb, G_DISCARD | G_EVAL);
455 } 371 }
456} 372}
457 373
374static int
458static int req_invoke (aio_req req) 375req_invoke (eio_req *req)
459{ 376{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 377 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 378 SvREADONLY_off (req->sv2);
464 379
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 380 if (!EIO_CANCELLED (req) && req->callback)
466 { 381 {
382 dSP;
383 static SV *sv_result_cache; /* caches the result integer SV */
384 SV *sv_result;
385
467 ENTER; 386 ENTER;
468 SAVETMPS; 387 SAVETMPS;
469 PUSHMARK (SP); 388 PUSHMARK (SP);
470 EXTEND (SP, 1); 389 EXTEND (SP, 1);
471 390
391 /* do not recreate the result IV from scratch each time */
392 if (expect_true (sv_result_cache))
393 {
394 sv_result = sv_result_cache; sv_result_cache = 0;
395 SvIV_set (sv_result, req->result);
396 SvIOK_only (sv_result);
397 }
398 else
399 {
400 sv_result = newSViv (req->result);
401 SvREADONLY_on (sv_result);
402 }
403
472 switch (req->type) 404 switch (req->type)
473 { 405 {
406 case EIO_WD_OPEN:
407 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
408 break;
409
474 case REQ_READDIR: 410 case EIO_READDIR:
475 { 411 {
476 SV *rv = &PL_sv_undef; 412 SV *rv = &PL_sv_undef;
477 413
478 if (req->result >= 0) 414 if (req->result >= 0)
479 { 415 {
480 int i; 416 int i;
481 char *buf = req->ptr2; 417 char *names = (char *)req->ptr2;
418 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 419 AV *av = newAV ();
483 420
484 av_extend (av, req->result - 1); 421 av_extend (av, req->result - 1);
485 422
486 for (i = 0; i < req->result; ++i) 423 for (i = 0; i < req->result; ++i)
487 { 424 {
488 SV *sv = newSVpv (buf, 0); 425 if (req->int1 & EIO_READDIR_DENTS)
426 {
427 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 428
429 if (req->int1 & EIO_READDIR_CUSTOM2)
430 {
431 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
432 AV *avent = newAV ();
433
434 av_extend (avent, 2);
435
436 if (!sv_type [ent->type])
437 {
438 sv_type [ent->type] = newSViv (ent->type);
439 SvREADONLY_on (sv_type [ent->type]);
440 }
441
442 av_store (avent, 0, namesv);
443 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
444 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
445
446 av_store (av, i, newRV_noinc ((SV *)avent));
447 }
448 else
490 av_store (av, i, sv); 449 av_store (av, i, namesv);
450
451 ++ent;
452 }
453 else
454 {
455 SV *name = newSVpv (names, 0);
456 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 457 names += SvCUR (name) + 1;
458 }
492 } 459 }
493 460
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 461 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 462 }
496 463
497 PUSHs (rv); 464 PUSHs (rv);
465
466 if (req->int1 & EIO_READDIR_CUSTOM1)
467 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 468 }
499 break; 469 break;
500 470
501 case REQ_OPEN: 471 case EIO_OPEN:
502 { 472 {
503 /* convert fd to fh */ 473 /* convert fd to fh */
504 SV *fh; 474 SV *fh = &PL_sv_undef;
505 475
506 PUSHs (sv_2mortal (newSViv (req->result))); 476 if (req->result >= 0)
507 PUTBACK; 477 {
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 478 GV *gv = (GV *)sv_newmortal ();
509 SPAGAIN; 479 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
480 char sym [64];
481 int symlen;
482
483 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
484 gv_init (gv, aio_stash, sym, symlen, 0);
510 485
511 fh = POPs; 486 symlen = snprintf (
512 PUSHMARK (SP); 487 sym,
488 sizeof (sym),
489 "%s&=%d",
490 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
491 (int)req->result
492 );
493
494 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
495 fh = (SV *)gv;
496 }
497
513 XPUSHs (fh); 498 PUSHs (fh);
514 } 499 }
515 break; 500 break;
516 501
502 case EIO_STATVFS:
503 case EIO_FSTATVFS:
504 {
505 SV *rv = &PL_sv_undef;
506
507#ifndef _WIN32
508 if (req->result >= 0)
509 {
510 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
511 HV *hv = newHV ();
512 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
513 * chooses to make it a struct.
514 */
515 unsigned long fsid = 0;
516 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
517
518 rv = sv_2mortal (newRV_noinc ((SV *)hv));
519
520 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
521 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
522 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
523 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
524 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
525 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
526 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
527 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
528 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
529 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
530 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
531 }
532#endif
533
534 PUSHs (rv);
535 }
536
537 break;
538
517 case REQ_GROUP: 539 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 540 req->int1 = 2; /* mark group as finished */
519 541
520 if (req->sv1) 542 if (req->sv1)
521 { 543 {
522 int i; 544 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 548 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 549 PUSHs (*av_fetch (av, i, 0));
528 } 550 }
529 break; 551 break;
530 552
531 case REQ_NOP: 553 case EIO_NOP:
532 case REQ_BUSY: 554 case EIO_BUSY:
533 break; 555 break;
534 556
535 case REQ_READLINK: 557 case EIO_READLINK:
558 case EIO_REALPATH:
536 if (req->result > 0) 559 if (req->result > 0)
560 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
561 break;
562
563 case EIO_STAT:
564 case EIO_LSTAT:
565 case EIO_FSTAT:
566 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567
568 if (!(PL_laststatval = req->result))
569 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
570 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
571
572 PUSHs (sv_result);
573 break;
574
575 case EIO_SEEK:
576 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
577 break;
578
579 case EIO_READ:
580 {
581 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
582 *SvEND (req->sv2) = 0;
583 SvPOK_only (req->sv2);
584 SvSETMAGIC (req->sv2);
585 PUSHs (sv_result);
586 }
587 break;
588
589 case EIO_CUSTOM:
590 if (req->feed == fiemap)
537 { 591 {
538 SvCUR_set (req->sv2, req->result); 592#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 593 if (!req->result)
594 {
595 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
596
597 if (fiemap->fm_extent_count)
598 {
599 AV *av = newAV ();
600 int i;
601
602 while (fiemap->fm_mapped_extents)
603 {
604 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
605 AV *ext_av = newAV ();
606
607 av_store (ext_av, 3, newSVuv (extent->fe_flags));
608 av_store (ext_av, 2, newSVval64 (extent->fe_length));
609 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
610 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
611
612 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
613 }
614
615 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
616 }
617 else
618 {
619 SvIV_set (sv_result, fiemap->fm_mapped_extents);
620 PUSHs (sv_result);
621 }
622 }
623#endif
541 } 624 }
625 else
626 PUSHs (sv_result);
542 break; 627 break;
543 628
544 case REQ_STAT: 629 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 630 if (req->result > 0)
546 case REQ_FSTAT: 631 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 632 /* FALLTHROUGH */
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break;
552
553 case REQ_READ:
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result)));
557 break;
558 633
559 default: 634 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 635 PUSHs (sv_result);
561 break; 636 break;
562 } 637 }
563 638
564 errno = req->errorno; 639 errno = req->errorno;
565 640
566 PUTBACK; 641 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 642 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 643 SPAGAIN;
644
645 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
646 SvREFCNT_dec (sv_result);
647 else
648 sv_result_cache = sv_result;
569 649
570 FREETMPS; 650 FREETMPS;
571 LEAVE; 651 LEAVE;
652
653 PUTBACK;
572 } 654 }
573 655
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 656 return !!SvTRUE (ERRSV);
589} 657}
590 658
659static void
591static void req_destroy (aio_req req) 660req_destroy (aio_req req)
592{ 661{
593 if (req->self) 662 if (req->self)
594 { 663 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 664 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 665 SvREFCNT_dec (req->self);
597 } 666 }
598 667
599 SvREFCNT_dec (req->sv1); 668 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 669 SvREFCNT_dec (req->sv2);
670 SvREFCNT_dec (req->sv3);
671 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 672 SvREFCNT_dec (req->callback);
602 673
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 674 free (req);
607} 675}
608 676
677static void
609static void req_cancel_subs (aio_req grp) 678req_cancel_subs (aio_req grp)
610{ 679{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 680 if (grp->type != EIO_GROUP)
614 return; 681 return;
615 682
616 SvREFCNT_dec (grp->sv2); 683 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 684 grp->sv2 = 0;
618 685
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 686 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 687}
622 688
623static void req_cancel (aio_req req) 689static void ecb_cold
690create_respipe (void)
624{ 691{
625 req->flags |= FLAG_CANCELLED; 692 if (s_epipe_renew (&respipe))
626 693 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 694}
629 695
630X_THREAD_PROC (aio_proc); 696static void
631 697poll_wait (void)
632static void start_thread (void)
633{ 698{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 699 while (eio_nreqs ())
730 { 700 {
731 int size; 701 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 702
703 X_LOCK (reslock);
733 size = res_queue.size; 704 size = res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 705 X_UNLOCK (reslock);
735 706
736 if (size) 707 if (size)
737 return; 708 return;
738 709
739 maybe_start_thread (); 710 etp_maybe_start_thread ();
740 711
741 FD_ZERO(&rfd); 712 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 713 }
746} 714}
747 715
748static int poll_cb () 716static int
717poll_cb (void)
749{ 718{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 719 for (;;)
763 { 720 {
764 for (;;) 721 int res = eio_poll ();
722
723 if (res > 0)
724 croak (0);
725
726 if (!max_outstanding || max_outstanding > eio_nreqs ())
727 return res;
728
729 poll_wait ();
730 }
731}
732
733static void ecb_cold
734reinit (void)
735{
736 create_respipe ();
737
738 if (eio_init (want_poll, done_poll) < 0)
739 croak ("IO::AIO: unable to initialise eio library");
740}
741
742/*****************************************************************************/
743
744#if !_POSIX_MAPPED_FILES
745# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
746# define munmap(addr,length) EIO_ENOSYS ()
747#endif
748
749#if !_POSIX_MEMORY_PROTECTION
750# define mprotect(addr,len,prot) EIO_ENOSYS ()
751# define PROT_NONE 0
752# define PROT_WRITE 0
753# define MAP_PRIVATE 0
754# define MAP_SHARED 0
755# define MAP_FIXED 0
756#endif
757
758#define MMAP_MAGIC PERL_MAGIC_ext
759
760static int ecb_cold
761mmap_free (pTHX_ SV *sv, MAGIC *mg)
762{
763 int old_errno = errno;
764 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
765 errno = old_errno;
766
767 mg->mg_obj = 0; /* just in case */
768
769 SvREADONLY_off (sv);
770
771 if (SvPVX (sv) != mg->mg_ptr)
772 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
773
774 SvCUR_set (sv, 0);
775 SvPVX (sv) = 0;
776 SvOK_off (sv);
777
778 return 0;
779}
780
781static MGVTBL mmap_vtbl = {
782 0, 0, 0, 0, mmap_free
783};
784
785/*****************************************************************************/
786
787static SV *
788get_cb (SV *cb_sv)
789{
790 SvGETMAGIC (cb_sv);
791 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
792}
793
794static aio_req ecb_noinline
795dreq (SV *callback)
796{
797 SV *cb_cv;
798 aio_req req;
799 int req_pri = next_pri;
800 next_pri = EIO_PRI_DEFAULT;
801
802 cb_cv = get_cb (callback);
803
804 req = calloc (sizeof (*req), 1);
805 if (!req)
806 croak ("out of memory during eio_req allocation");
807
808 req->callback = SvREFCNT_inc (cb_cv);
809 req->pri = req_pri;
810
811 return req;
812}
813
814#define dREQ \
815 aio_req req = dreq (callback); \
816
817#define REQ_SEND \
818 PUTBACK; \
819 req_submit (req); \
820 SPAGAIN; \
821 \
822 if (GIMME_V != G_VOID) \
823 XPUSHs (req_sv (req, aio_req_stash));
824
825ecb_inline void
826req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
827{
828 if (expect_false (SvROK (path)))
829 {
830 SV *rv = SvRV (path);
831 SV *wdob;
832
833 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 834 {
766 maybe_start_thread (); 835 path = AvARRAY (rv)[1];
836 wdob = AvARRAY (rv)[0];
767 837
768 X_LOCK (reslock); 838 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 839 {
773 --npending; 840 *wd = SvAIO_WD (wdob);
774 841 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 842 }
796 else 843 else
797 { 844 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 845 }
846 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
847 {
848 *wd = (aio_wd)(long)SvIVX (rv);
849 *wdsv = SvREFCNT_inc_NN (rv);
850 *ptr = ".";
851 return; /* path set to "." */
852 }
853 else
854 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
855 }
821 856
822 if (nreqs <= max_outstanding) 857 *pathsv = newSVsv (path);
858 *ptr = SvPVbyte_nolen (*pathsv);
859}
860
861static void ecb_noinline
862req_set_path1 (aio_req req, SV *path)
863{
864 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
865}
866
867static void ecb_noinline
868req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
869{
870 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
871
872 switch (SvTYPE (rv))
873 {
874 case SVt_PVIO:
875 case SVt_PVLV:
876 case SVt_PVGV:
877 req->type = type_fh;
878 req->sv1 = newSVsv (fh_or_path);
879 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 880 break;
824 881
825 poll_wait (); 882 default:
826 883 req->type = type_path;
827 ++maxreqs; 884 req_set_path1 (req, fh_or_path);
885 break;
828 } 886 }
829
830 unblock_sig ();
831 return count;
832} 887}
833 888
834/*****************************************************************************/ 889XS(boot_IO__AIO) ecb_cold;
835/* work around various missing functions */
836 890
837#if !HAVE_PREADWRITE
838# define pread aio_pread
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055}
1056
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO 891MODULE = IO::AIO PACKAGE = IO::AIO
1379 892
1380PROTOTYPES: ENABLE 893PROTOTYPES: ENABLE
1381 894
1382BOOT: 895BOOT:
1383{ 896{
897 static const struct {
898 const char *name;
899 IV iv;
900 } *civ, const_iv[] = {
901# define const_niv(name, value) { # name, (IV) value },
902# define const_iv(name) { # name, (IV) name },
903# define const_eio(name) { # name, (IV) EIO_ ## name },
904
905 /* you have to re-run ./gendef0 after adding/Removing any constants here */
906
907 const_iv (ENOSYS)
908 const_iv (EXDEV)
909 const_iv (EBADR)
910
911 const_iv (O_RDONLY)
912 const_iv (O_WRONLY)
913 const_iv (O_RDWR)
914 const_iv (O_CREAT)
915 const_iv (O_TRUNC)
916 const_iv (O_EXCL)
917 const_iv (O_APPEND)
918
919 const_iv (O_ASYNC)
920 const_iv (O_DIRECT)
921 const_iv (O_NOATIME)
922
923 const_iv (O_CLOEXEC)
924 const_iv (O_NOCTTY)
925 const_iv (O_NOFOLLOW)
926 const_iv (O_NONBLOCK)
927 const_iv (O_EXEC)
928 const_iv (O_SEARCH)
929 const_iv (O_DIRECTORY)
930 const_iv (O_DSYNC)
931 const_iv (O_RSYNC)
932 const_iv (O_SYNC)
933 const_iv (O_TTY_INIT)
934
935 const_iv (S_IFIFO)
936 const_iv (S_IFCHR)
937 const_iv (S_IFBLK)
938 const_iv (S_IFLNK)
939 const_iv (S_IFREG)
940 const_iv (S_IFDIR)
941 const_iv (S_IFWHT)
942 const_iv (S_IFSOCK)
943 const_iv (S_IFMT)
944
945 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
946 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
947 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
948 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
949 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
950 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
951
952 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
953 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
954 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
955 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
956 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
957
958 const_iv (ST_RDONLY)
959 const_iv (ST_NOSUID)
960 const_iv (ST_NODEV)
961 const_iv (ST_NOEXEC)
962 const_iv (ST_SYNCHRONOUS)
963 const_iv (ST_MANDLOCK)
964 const_iv (ST_WRITE)
965 const_iv (ST_APPEND)
966 const_iv (ST_IMMUTABLE)
967 const_iv (ST_NOATIME)
968 const_iv (ST_NODIRATIME)
969 const_iv (ST_RELATIME)
970
971 const_iv (PROT_NONE)
972 const_iv (PROT_EXEC)
973 const_iv (PROT_READ)
974 const_iv (PROT_WRITE)
975
976 /*const_iv (MAP_FIXED)*/
977 const_iv (MAP_PRIVATE)
978 const_iv (MAP_SHARED)
979 const_iv (MAP_ANONYMOUS)
980
981 /* linuxish */
982 const_iv (MAP_HUGETLB)
983 const_iv (MAP_LOCKED)
984 const_iv (MAP_NORESERVE)
985 const_iv (MAP_POPULATE)
986 const_iv (MAP_NONBLOCK)
987
988 const_iv (FIEMAP_FLAG_SYNC)
989 const_iv (FIEMAP_FLAG_XATTR)
990 const_iv (FIEMAP_FLAGS_COMPAT)
991 const_iv (FIEMAP_EXTENT_LAST)
992 const_iv (FIEMAP_EXTENT_UNKNOWN)
993 const_iv (FIEMAP_EXTENT_DELALLOC)
994 const_iv (FIEMAP_EXTENT_ENCODED)
995 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
996 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
997 const_iv (FIEMAP_EXTENT_DATA_INLINE)
998 const_iv (FIEMAP_EXTENT_DATA_TAIL)
999 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1000 const_iv (FIEMAP_EXTENT_MERGED)
1001 const_iv (FIEMAP_EXTENT_SHARED)
1002
1003 const_iv (SPLICE_F_MOVE)
1004 const_iv (SPLICE_F_NONBLOCK)
1005 const_iv (SPLICE_F_MORE)
1006 const_iv (SPLICE_F_GIFT)
1007
1008 const_iv (SEEK_DATA)
1009 const_iv (SEEK_HOLE)
1010
1011 /* libeio constants */
1012 const_eio (SEEK_SET)
1013 const_eio (SEEK_CUR)
1014 const_eio (SEEK_END)
1015
1016 const_eio (MCL_FUTURE)
1017 const_eio (MCL_CURRENT)
1018
1019 const_eio (MS_ASYNC)
1020 const_eio (MS_INVALIDATE)
1021 const_eio (MS_SYNC)
1022
1023 const_eio (MT_MODIFY)
1024
1025 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1026 const_eio (SYNC_FILE_RANGE_WRITE)
1027 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1028
1029 const_eio (FALLOC_FL_KEEP_SIZE)
1030 const_eio (FALLOC_FL_PUNCH_HOLE)
1031
1032 const_eio (READDIR_DENTS)
1033 const_eio (READDIR_DIRS_FIRST)
1034 const_eio (READDIR_STAT_ORDER)
1035 const_eio (READDIR_FOUND_UNKNOWN)
1036
1037 const_eio (DT_UNKNOWN)
1038 const_eio (DT_FIFO)
1039 const_eio (DT_CHR)
1040 const_eio (DT_DIR)
1041 const_eio (DT_BLK)
1042 const_eio (DT_REG)
1043 const_eio (DT_LNK)
1044 const_eio (DT_SOCK)
1045 const_eio (DT_WHT)
1046 };
1047
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 1048 aio_stash = gv_stashpv ("IO::AIO" , 1);
1049 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1050 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1051 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 1052
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1053 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1054 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 1055
1403 if (!create_pipe (respipe)) 1056 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1057
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1058 reinit ();
1407} 1059}
1408 1060
1409void 1061void
1062reinit ()
1063 PROTOTYPE:
1064
1065void
1410max_poll_reqs (int nreqs) 1066max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1067 PROTOTYPE: $
1412 CODE: 1068 CODE:
1413 max_poll_reqs = nreqs; 1069 eio_set_max_poll_reqs (nreqs);
1414 1070
1415void 1071void
1416max_poll_time (double nseconds) 1072max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1073 PROTOTYPE: $
1418 CODE: 1074 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1075 eio_set_max_poll_time (nseconds);
1420 1076
1421void 1077void
1422min_parallel (int nthreads) 1078min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1079 PROTOTYPE: $
1432 CODE: 1080 CODE:
1433 set_max_idle (nthreads); 1081 eio_set_min_parallel (nthreads);
1434 1082
1435int 1083void
1436max_outstanding (int maxreqs) 1084max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1085 PROTOTYPE: $
1438 CODE: 1086 CODE:
1439 RETVAL = max_outstanding; 1087 eio_set_max_parallel (nthreads);
1088
1089void
1090max_idle (unsigned int nthreads)
1091 PROTOTYPE: $
1092 CODE:
1093 eio_set_max_idle (nthreads);
1094
1095void
1096idle_timeout (unsigned int seconds)
1097 PROTOTYPE: $
1098 CODE:
1099 eio_set_idle_timeout (seconds);
1100
1101void
1102max_outstanding (unsigned int maxreqs)
1103 PROTOTYPE: $
1104 CODE:
1440 max_outstanding = maxreqs; 1105 max_outstanding = maxreqs;
1441 OUTPUT: 1106
1442 RETVAL 1107void
1108aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1109 PPCODE:
1110{
1111 dREQ;
1112
1113 req->type = EIO_WD_OPEN;
1114 req_set_path1 (req, pathname);
1115
1116 REQ_SEND;
1117}
1443 1118
1444void 1119void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1120aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1121 PPCODE:
1448{ 1122{
1449 dREQ; 1123 dREQ;
1450 1124
1451 req->type = REQ_OPEN; 1125 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1126 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1127 req->int1 = flags;
1455 req->mode = mode; 1128 req->int2 = mode;
1456 1129
1457 REQ_SEND; 1130 REQ_SEND;
1458} 1131}
1459 1132
1460void 1133void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1134aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1135 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1136 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1137 aio_fdatasync = EIO_FDATASYNC
1138 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1139 PPCODE:
1468{ 1140{
1141 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1142 dREQ;
1470 1143
1471 req->type = ix; 1144 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1145 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1146 req->int1 = fd;
1474 1147
1475 REQ_SEND (req); 1148 REQ_SEND;
1149}
1150
1151void
1152aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1153 PPCODE:
1154{
1155 int fd = s_fileno_croak (fh, 0);
1156 dREQ;
1157
1158 req->type = EIO_SYNC_FILE_RANGE;
1159 req->sv1 = newSVsv (fh);
1160 req->int1 = fd;
1161 req->offs = offset;
1162 req->size = nbytes;
1163 req->int2 = flags;
1164
1165 REQ_SEND;
1166}
1167
1168void
1169aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1170 PPCODE:
1171{
1172 int fd = s_fileno_croak (fh, 0);
1173 dREQ;
1174
1175 req->type = EIO_FALLOCATE;
1176 req->sv1 = newSVsv (fh);
1177 req->int1 = fd;
1178 req->int2 = mode;
1179 req->offs = offset;
1180 req->size = len;
1181
1182 REQ_SEND;
1183}
1184
1185void
1186aio_close (SV *fh, SV *callback=&PL_sv_undef)
1187 PPCODE:
1188{
1189 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1190 int fd = s_fileno_croak (fh, 0);
1191 dREQ;
1192
1193 if (expect_false (close_fd < 0))
1194 {
1195 int pipefd [2];
1196
1197 if (
1198#ifdef _WIN32
1199 _pipe (pipefd, 1, _O_BINARY) < 0
1200#else
1201 pipe (pipefd) < 0
1202 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1203#endif
1204 || close (pipefd [1]) < 0
1205 )
1206 abort (); /*D*/
1207
1208 close_fd = pipefd [0];
1209 }
1210
1211 req->type = EIO_DUP2;
1212 req->int1 = close_fd;
1213 req->sv2 = newSVsv (fh);
1214 req->int2 = fd;
1215
1216 REQ_SEND;
1217}
1218
1219void
1220aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1221 PPCODE:
1222{
1223 int fd = s_fileno_croak (fh, 0);
1224 dREQ;
1225
1226 req->type = EIO_SEEK;
1227 req->sv1 = newSVsv (fh);
1228 req->int1 = fd;
1229 req->offs = SvVAL64 (offset);
1230 req->int2 = whence;
1231
1232 REQ_SEND;
1476} 1233}
1477 1234
1478void 1235void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1236aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1480 ALIAS: 1237 ALIAS:
1481 aio_read = REQ_READ 1238 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1239 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1240 PPCODE:
1485{ 1241{
1486 STRLEN svlen; 1242 STRLEN svlen;
1243 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1244 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1245 UV len = SvUV (length);
1489 1246
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1247 if (dataoffset < 0)
1494 dataoffset += svlen; 1248 dataoffset += svlen;
1495 1249
1496 if (dataoffset < 0 || dataoffset > svlen) 1250 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1251 croak ("dataoffset outside of data scalar");
1498 1252
1499 if (ix == REQ_WRITE) 1253 if (ix == EIO_WRITE)
1500 { 1254 {
1501 /* write: check length and adjust. */ 1255 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1256 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1257 len = svlen - dataoffset;
1504 } 1258 }
1505 else 1259 else
1506 { 1260 {
1507 /* read: grow scalar as necessary */ 1261 /* read: check type and grow scalar as necessary */
1262 SvUPGRADE (data, SVt_PV);
1263 if (SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1264 svptr = SvGROW (data, len + dataoffset + 1);
1265 else if (SvCUR (data) < len + dataoffset)
1266 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1267 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1268
1514 { 1269 {
1515 dREQ; 1270 dREQ;
1516 1271
1517 req->type = ix; 1272 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1273 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1274 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1275 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1276 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1277 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1278 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1279 req->stroffset = dataoffset;
1526 1280
1527 if (!SvREADONLY (data)) 1281 if (!SvREADONLY (data))
1528 { 1282 {
1529 SvREADONLY_on (data); 1283 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1287 REQ_SEND;
1534 } 1288 }
1535} 1289}
1536 1290
1537void 1291void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1292aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1539 PROTOTYPE: $$;$ 1293 ALIAS:
1294 aio_readlink = EIO_READLINK
1295 aio_realpath = EIO_REALPATH
1540 PPCODE: 1296 PPCODE:
1541{ 1297{
1542 SV *data;
1543 dREQ; 1298 dREQ;
1544 1299
1545 data = newSV (NAME_MAX);
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK; 1300 req->type = ix;
1549 req->sv1 = newSVsv (path); 1301 req_set_path1 (req, pathname);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553 1302
1554 REQ_SEND; 1303 REQ_SEND;
1555} 1304}
1556 1305
1557void 1306void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1307aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE: 1308 PPCODE:
1561{ 1309{
1310 int ifd = s_fileno_croak (in_fh , 0);
1311 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ; 1312 dREQ;
1563 1313
1564 req->type = REQ_SENDFILE; 1314 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh); 1315 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1316 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh); 1317 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1318 req->int2 = ifd;
1569 req->offs = SvVAL64 (in_offset); 1319 req->offs = in_offset;
1570 req->size = length; 1320 req->size = length;
1571 1321
1572 REQ_SEND; 1322 REQ_SEND;
1573} 1323}
1574 1324
1575void 1325void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1326aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE: 1327 PPCODE:
1579{ 1328{
1329 int fd = s_fileno_croak (fh, 0);
1580 dREQ; 1330 dREQ;
1581 1331
1582 req->type = REQ_READAHEAD; 1332 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh); 1333 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1334 req->int1 = fd;
1585 req->offs = SvVAL64 (offset); 1335 req->offs = offset;
1586 req->size = length; 1336 req->size = length;
1587 1337
1588 REQ_SEND; 1338 REQ_SEND;
1589} 1339}
1590 1340
1591void 1341void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1342aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS: 1343 ALIAS:
1594 aio_stat = REQ_STAT 1344 aio_stat = EIO_STAT
1595 aio_lstat = REQ_LSTAT 1345 aio_lstat = EIO_LSTAT
1346 aio_statvfs = EIO_STATVFS
1596 PPCODE: 1347 PPCODE:
1597{ 1348{
1598 dREQ; 1349 dREQ;
1599 1350
1600 req->ptr2 = malloc (sizeof (Stat_t)); 1351 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1601 if (!req->ptr2)
1602 {
1603 req_destroy (req);
1604 croak ("out of memory during aio_stat statdata allocation");
1605 }
1606
1607 req->flags |= FLAG_PTR2_FREE;
1608 req->sv1 = newSVsv (fh_or_path);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 }
1615 else
1616 {
1617 req->type = REQ_FSTAT;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1619 }
1620 1352
1621 REQ_SEND; 1353 REQ_SEND;
1622} 1354}
1355
1356UV
1357major (UV dev)
1358 ALIAS:
1359 minor = 1
1360 CODE:
1361 RETVAL = ix ? major (dev) : minor (dev);
1362 OUTPUT:
1363 RETVAL
1364
1365UV
1366makedev (UV maj, UV min)
1367 CODE:
1368 RETVAL = makedev (maj, min);
1369 OUTPUT:
1370 RETVAL
1623 1371
1624void 1372void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1373aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1626 PPCODE: 1374 PPCODE:
1627{ 1375{
1628 dREQ; 1376 dREQ;
1629 1377
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1378 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1379 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1380 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1381
1645 REQ_SEND; 1382 REQ_SEND;
1646} 1383}
1647 1384
1648void 1385void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1386aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1650 PPCODE: 1387 PPCODE:
1651{ 1388{
1652 dREQ; 1389 dREQ;
1653 1390
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1391 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1392 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1393
1668 REQ_SEND; 1394 REQ_SEND;
1669} 1395}
1670 1396
1671void 1397void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1398aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1673 PPCODE: 1399 PPCODE:
1674{ 1400{
1675 dREQ; 1401 dREQ;
1676 1402
1677 req->mode = mode; 1403 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1404 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1405
1691 REQ_SEND; 1406 REQ_SEND;
1692} 1407}
1693 1408
1694void 1409void
… …
1697{ 1412{
1698 dREQ; 1413 dREQ;
1699 1414
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1415 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1416 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1417 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703 1418
1704 if (SvPOK (fh_or_path)) 1419 REQ_SEND;
1705 { 1420}
1706 req->type = REQ_CHOWN; 1421
1707 req->ptr1 = SvPVbyte_nolen (req->sv1); 1422void
1708 } 1423aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1709 else 1424 PPCODE:
1710 { 1425{
1711 req->type = REQ_FCHOWN; 1426 dREQ;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1427
1713 } 1428 req->type = EIO_READDIR;
1429 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1430
1431 if (flags & EIO_READDIR_DENTS)
1432 req->int1 |= EIO_READDIR_CUSTOM2;
1433
1434 req_set_path1 (req, pathname);
1435
1436 REQ_SEND;
1437}
1438
1439void
1440aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1441 PPCODE:
1442{
1443 dREQ;
1444
1445 req->type = EIO_MKDIR;
1446 req->int2 = mode;
1447 req_set_path1 (req, pathname);
1714 1448
1715 REQ_SEND; 1449 REQ_SEND;
1716} 1450}
1717 1451
1718void 1452void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1453aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1720 ALIAS: 1454 ALIAS:
1721 aio_unlink = REQ_UNLINK 1455 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1456 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1457 aio_readdir = EIO_READDIR
1724 PPCODE: 1458 PPCODE:
1725{ 1459{
1726 dREQ; 1460 dREQ;
1727 1461
1728 req->type = ix; 1462 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1463 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745 1464
1746 REQ_SEND; 1465 REQ_SEND;
1747} 1466}
1748 1467
1749void 1468void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1469aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS: 1470 ALIAS:
1752 aio_link = REQ_LINK 1471 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1472 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1473 aio_rename = EIO_RENAME
1755 PPCODE: 1474 PPCODE:
1756{ 1475{
1476 eio_wd wd2 = 0;
1757 dREQ; 1477 dREQ;
1758 1478
1759 req->type = ix; 1479 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1480 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1481 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1482 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1483
1765 REQ_SEND; 1484 REQ_SEND;
1766} 1485}
1767 1486
1768void 1487void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1488aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1770 PPCODE: 1489 PPCODE:
1771{ 1490{
1772 dREQ; 1491 dREQ;
1773 1492
1774 req->type = REQ_MKNOD; 1493 req->type = EIO_MKNOD;
1775 req->sv1 = newSVsv (pathname);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1);
1777 req->mode = (mode_t)mode; 1494 req->int2 = (mode_t)mode;
1778 req->offs = dev; 1495 req->offs = dev;
1496 req_set_path1 (req, pathname);
1779 1497
1780 REQ_SEND; 1498 REQ_SEND;
1781} 1499}
1782 1500
1783void 1501void
1502aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1503 ALIAS:
1504 aio_mtouch = EIO_MTOUCH
1505 aio_msync = EIO_MSYNC
1506 PPCODE:
1507{
1508 STRLEN svlen;
1509 char *svptr = SvPVbyte (data, svlen);
1510 UV len = SvUV (length);
1511
1512 if (offset < 0)
1513 offset += svlen;
1514
1515 if (offset < 0 || offset > svlen)
1516 croak ("offset outside of scalar");
1517
1518 if (!SvOK (length) || len + offset > svlen)
1519 len = svlen - offset;
1520
1521 {
1522 dREQ;
1523
1524 req->type = ix;
1525 req->sv2 = SvREFCNT_inc (data);
1526 req->ptr2 = (char *)svptr + offset;
1527 req->size = len;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531 }
1532}
1533
1534void
1535aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1536 PPCODE:
1537{
1538 STRLEN svlen;
1539 char *svptr = SvPVbyte (data, svlen);
1540 UV len = SvUV (length);
1541
1542 if (offset < 0)
1543 offset += svlen;
1544
1545 if (offset < 0 || offset > svlen)
1546 croak ("offset outside of scalar");
1547
1548 if (!SvOK (length) || len + offset > svlen)
1549 len = svlen - offset;
1550
1551 {
1552 dREQ;
1553
1554 req->type = EIO_MLOCK;
1555 req->sv2 = SvREFCNT_inc (data);
1556 req->ptr2 = (char *)svptr + offset;
1557 req->size = len;
1558
1559 REQ_SEND;
1560 }
1561}
1562
1563void
1564aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1565 PPCODE:
1566{
1567 dREQ;
1568
1569 req->type = EIO_MLOCKALL;
1570 req->int1 = flags;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1577 PPCODE:
1578{
1579 int fd = s_fileno_croak (fh, 0);
1580 dREQ;
1581
1582 req->type = EIO_CUSTOM;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = fd;
1585
1586 req->feed = fiemap;
1587#if HAVE_FIEMAP
1588 /* keep our fingers crossed that the next two types are 64 bit */
1589 req->offs = start;
1590 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1591 req->int2 = flags;
1592 req->int3 = SvOK (count) ? SvIV (count) : -1;
1593#endif
1594
1595 REQ_SEND;
1596}
1597
1598void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1599aio_busy (double delay, SV *callback=&PL_sv_undef)
1785 PPCODE: 1600 PPCODE:
1786{ 1601{
1787 dREQ; 1602 dREQ;
1788 1603
1789 req->type = REQ_BUSY; 1604 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1605 req->nv1 = delay < 0. ? 0. : delay;
1791 1606
1792 REQ_SEND; 1607 REQ_SEND;
1793} 1608}
1794 1609
1795void 1610void
1796aio_group (SV *callback=&PL_sv_undef) 1611aio_group (SV *callback=&PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1612 PPCODE:
1799{ 1613{
1800 dREQ; 1614 dREQ;
1801 1615
1802 req->type = REQ_GROUP; 1616 req->type = EIO_GROUP;
1803 1617
1804 req_send (req); 1618 req_submit (req);
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1619 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1620}
1807 1621
1808void 1622void
1809aio_nop (SV *callback=&PL_sv_undef) 1623aio_nop (SV *callback=&PL_sv_undef)
1624 ALIAS:
1625 aio_nop = EIO_NOP
1626 aio_sync = EIO_SYNC
1810 PPCODE: 1627 PPCODE:
1811{ 1628{
1812 dREQ; 1629 dREQ;
1813 1630
1814 req->type = REQ_NOP; 1631 req->type = ix;
1815 1632
1816 REQ_SEND; 1633 REQ_SEND;
1817} 1634}
1818 1635
1819int 1636int
1820aioreq_pri (int pri = 0) 1637aioreq_pri (int pri = 0)
1821 PROTOTYPE: ;$
1822 CODE: 1638 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1639 RETVAL = next_pri;
1824 if (items > 0) 1640 if (items > 0)
1825 { 1641 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1642 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1643 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1644 next_pri = pri;
1829 } 1645 }
1830 OUTPUT: 1646 OUTPUT:
1831 RETVAL 1647 RETVAL
1832 1648
1833void 1649void
1834aioreq_nice (int nice = 0) 1650aioreq_nice (int nice = 0)
1835 CODE: 1651 CODE:
1836 nice = next_pri - nice; 1652 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1653 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1654 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1655 next_pri = nice;
1840 1656
1841void 1657void
1842flush () 1658flush ()
1843 PROTOTYPE:
1844 CODE: 1659 CODE:
1845 while (nreqs) 1660 while (eio_nreqs ())
1846 { 1661 {
1847 poll_wait (); 1662 poll_wait ();
1848 poll_cb (); 1663 poll_cb ();
1849 } 1664 }
1850 1665
1851int 1666int
1852poll() 1667poll ()
1853 PROTOTYPE:
1854 CODE: 1668 CODE:
1855 poll_wait (); 1669 poll_wait ();
1856 RETVAL = poll_cb (); 1670 RETVAL = poll_cb ();
1857 OUTPUT: 1671 OUTPUT:
1858 RETVAL 1672 RETVAL
1859 1673
1860int 1674int
1861poll_fileno() 1675poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1676 CODE:
1864 RETVAL = respipe [0]; 1677 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1678 OUTPUT:
1866 RETVAL 1679 RETVAL
1867 1680
1868int 1681int
1869poll_cb(...) 1682poll_cb (...)
1870 PROTOTYPE: 1683 PROTOTYPE:
1871 CODE: 1684 CODE:
1872 RETVAL = poll_cb (); 1685 RETVAL = poll_cb ();
1873 OUTPUT: 1686 OUTPUT:
1874 RETVAL 1687 RETVAL
1875 1688
1876void 1689void
1877poll_wait() 1690poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1691 CODE:
1880 poll_wait (); 1692 poll_wait ();
1881 1693
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1694int
1920nreqs() 1695nreqs ()
1921 PROTOTYPE:
1922 CODE: 1696 CODE:
1923 RETVAL = nreqs; 1697 RETVAL = eio_nreqs ();
1924 OUTPUT: 1698 OUTPUT:
1925 RETVAL 1699 RETVAL
1926 1700
1927int 1701int
1928nready() 1702nready ()
1929 PROTOTYPE:
1930 CODE: 1703 CODE:
1931 RETVAL = get_nready (); 1704 RETVAL = eio_nready ();
1932 OUTPUT: 1705 OUTPUT:
1933 RETVAL 1706 RETVAL
1934 1707
1935int 1708int
1936npending() 1709npending ()
1937 PROTOTYPE:
1938 CODE: 1710 CODE:
1939 RETVAL = get_npending (); 1711 RETVAL = eio_npending ();
1940 OUTPUT: 1712 OUTPUT:
1941 RETVAL 1713 RETVAL
1942 1714
1943int 1715int
1944nthreads() 1716nthreads ()
1945 PROTOTYPE:
1946 CODE: 1717 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1718 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1719 OUTPUT:
1951 RETVAL 1720 RETVAL
1952 1721
1722int
1723fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1724 CODE:
1725 RETVAL = posix_fadvise (fh, offset, length, advice);
1726 OUTPUT:
1727 RETVAL
1728
1729IV
1730sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1731 CODE:
1732 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1733 OUTPUT:
1734 RETVAL
1735
1736void
1737mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1738 PPCODE:
1739 sv_unmagic (scalar, MMAP_MAGIC);
1740{
1741 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1742 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1743 if (addr == (void *)-1)
1744 XSRETURN_NO;
1745
1746 sv_force_normal (scalar);
1747
1748 /* we store the length in mg_obj, as namlen is I32 :/ */
1749 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1750 ->mg_obj = (SV *)length;
1751
1752 SvUPGRADE (scalar, SVt_PV); /* nop... */
1753
1754 if (!(prot & PROT_WRITE))
1755 SvREADONLY_on (scalar);
1756
1757 if (SvLEN (scalar))
1758 Safefree (SvPVX (scalar));
1759
1760 SvPVX (scalar) = (char *)addr;
1761 SvCUR_set (scalar, length);
1762 SvLEN_set (scalar, 0);
1763 SvPOK_only (scalar);
1764
1765 XSRETURN_YES;
1766}
1767
1768void
1769munmap (SV *scalar)
1770 CODE:
1771 sv_unmagic (scalar, MMAP_MAGIC);
1772
1773int
1774madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1775 ALIAS:
1776 mprotect = 1
1777 CODE:
1778{
1779 STRLEN svlen;
1780 void *addr = SvPVbyte (scalar, svlen);
1781 size_t len = SvUV (length);
1782
1783 if (offset < 0)
1784 offset += svlen;
1785
1786 if (offset < 0 || offset > svlen)
1787 croak ("offset outside of scalar");
1788
1789 if (!SvOK (length) || len + offset > svlen)
1790 len = svlen - offset;
1791
1792 addr = (void *)(((intptr_t)addr) + offset);
1793 eio_page_align (&addr, &len);
1794
1795 switch (ix)
1796 {
1797 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1798 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1799 }
1800}
1801 OUTPUT:
1802 RETVAL
1803
1804int
1805munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1806 CODE:
1807{
1808 STRLEN svlen;
1809 void *addr = SvPVbyte (scalar, svlen);
1810 size_t len = SvUV (length);
1811
1812 if (offset < 0)
1813 offset += svlen;
1814
1815 if (offset < 0 || offset > svlen)
1816 croak ("offset outside of scalar");
1817
1818 if (!SvOK (length) || len + offset > svlen)
1819 len = svlen - offset;
1820
1821 addr = (void *)(((intptr_t)addr) + offset);
1822 eio_page_align (&addr, &len);
1823#if _POSIX_MEMLOCK_RANGE
1824 RETVAL = munlock (addr, len);
1825#else
1826 RETVAL = EIO_ENOSYS ();
1827#endif
1828}
1829 OUTPUT:
1830 RETVAL
1831
1832int
1833munlockall ()
1834 CODE:
1835#if _POSIX_MEMLOCK
1836 munlockall ();
1837#else
1838 RETVAL = EIO_ENOSYS ();
1839#endif
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1845 CODE:
1846{
1847#if HAVE_LINUX_SPLICE
1848 loff_t off_in_, off_out_;
1849 RETVAL = splice (
1850 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1851 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1852 length, flags
1853 );
1854#else
1855 RETVAL = EIO_ENOSYS ();
1856#endif
1857}
1858 OUTPUT:
1859 RETVAL
1860
1861int
1862tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1863 CODE:
1864#if HAVE_LINUX_SPLICE
1865 RETVAL = tee (rfh, wfh, length, flags);
1866#else
1867 RETVAL = EIO_ENOSYS ();
1868#endif
1869 OUTPUT:
1870 RETVAL
1871
1872void _on_next_submit (SV *cb)
1873 CODE:
1874 SvREFCNT_dec (on_next_submit);
1875 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1876
1953PROTOTYPES: DISABLE 1877PROTOTYPES: DISABLE
1878
1879MODULE = IO::AIO PACKAGE = IO::AIO::WD
1880
1881BOOT:
1882{
1883 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1884 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1885}
1886
1887void
1888DESTROY (SV *self)
1889 CODE:
1890{
1891 aio_wd wd = SvAIO_WD (self);
1892#if HAVE_AT
1893 {
1894 SV *callback = &PL_sv_undef;
1895 dREQ; /* clobbers next_pri :/ */
1896 next_pri = req->pri; /* restore next_pri */
1897 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1898 req->type = EIO_WD_CLOSE;
1899 req->wd = wd;
1900 REQ_SEND;
1901 }
1902#else
1903 eio_wd_close_sync (wd);
1904#endif
1905}
1954 1906
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1907MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 1908
1957void 1909void
1958cancel (aio_req_ornot req) 1910cancel (aio_req_ornot req)
1959 CODE: 1911 CODE:
1960 req_cancel (req); 1912 eio_cancel (req);
1961 1913
1962void 1914void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1915cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1964 CODE: 1916 PPCODE:
1917{
1918 if (GIMME_V != G_VOID)
1919 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1920
1921 if (items > 1)
1922 {
1923 SV *cb_cv =get_cb (callback);
1924
1965 SvREFCNT_dec (req->callback); 1925 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 1926 req->callback = SvREFCNT_inc (cb_cv);
1927 }
1928}
1967 1929
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1930MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 1931
1970void 1932void
1971add (aio_req grp, ...) 1933add (aio_req grp, ...)
1972 PPCODE: 1934 PPCODE:
1973{ 1935{
1974 int i; 1936 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 1937
1980 if (grp->int1 == 2) 1938 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1939 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 1940
1983 for (i = 1; i < items; ++i ) 1941 for (i = 1; i < items; ++i )
1984 { 1942 {
1943 aio_req req;
1944
1985 if (GIMME_V != G_VOID) 1945 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1946 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 1947
1988 req = SvAIO_REQ (ST (i)); 1948 req = SvAIO_REQ (ST (i));
1989 1949
1990 if (req) 1950 if (req)
1991 { 1951 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 1952 }
2004} 1953}
2005 1954
2006void 1955void
2007cancel_subs (aio_req_ornot req) 1956cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 1965 AV *av;
2017 1966
2018 grp->errorno = errno; 1967 grp->errorno = errno;
2019 1968
2020 av = newAV (); 1969 av = newAV ();
1970 av_extend (av, items - 1);
2021 1971
2022 for (i = 1; i < items; ++i ) 1972 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 1973 av_push (av, newSVsv (ST (i)));
2024 1974
2025 SvREFCNT_dec (grp->sv1); 1975 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 1982 grp->errorno = errorno;
2033 1983
2034void 1984void
2035limit (aio_req grp, int limit) 1985limit (aio_req grp, int limit)
2036 CODE: 1986 CODE:
2037 grp->int2 = limit; 1987 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 1988
2040void 1989void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 1990feed (aio_req grp, SV *callback=&PL_sv_undef)
2042 CODE: 1991 CODE:
2043{ 1992{
2044 SvREFCNT_dec (grp->sv2); 1993 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 1994 grp->sv2 = newSVsv (callback);
1995 grp->feed = aio_grp_feed;
2046 1996
2047 if (grp->int2 <= 0) 1997 if (grp->int2 <= 0)
2048 grp->int2 = 2; 1998 grp->int2 = 2;
2049 1999
2050 aio_grp_feed (grp); 2000 eio_grp_limit (grp, grp->int2);
2051} 2001}
2052 2002

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