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

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