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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.88 by root, Mon Oct 30 23:43:17 2006 UTC vs.
Revision 1.245 by root, Fri Jun 23 03:23:19 2017 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
40# include <sys/socket.h> 86 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
43# else 145# else
44# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 147# endif
46#endif 148#endif
47 149
48/* number of seconds after which idle threads exit */ 150/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 151/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h"
50 153
51/* used for struct dirent, AIX doesn't provide it */ 154#ifndef makedev
52#ifndef NAME_MAX 155# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
79#endif 159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
80 163
81/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
83 167
84#define dBUF \ 168/*****************************************************************************/
85 char *aio_buf; \ 169
86 LOCK (wrklock); \ 170static void
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 171fiemap (eio_req *req)
88 UNLOCK (wrklock); \ 172{
89 if (!aio_buf) \ 173 req->result = -1;
174
175#if HAVE_FIEMAP
176 /* assume some c99 */
177 struct fiemap *fiemap = 0;
178 size_t end_offset;
179 int count = req->int3;
180
181 req->flags |= EIO_FLAG_PTR1_FREE;
182
183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
184 /* increase in 3.5kb steps */
185 if (count < 0)
186 count = 8;
187
188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189 errno = ENOMEM;
190 if (!fiemap)
90 return -1; 191 return;
91 192
92enum { 193 req->ptr1 = fiemap;
93 REQ_QUIT,
94 REQ_OPEN, REQ_CLOSE,
95 REQ_READ, REQ_WRITE, REQ_READAHEAD,
96 REQ_SENDFILE,
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
98 REQ_FSYNC, REQ_FDATASYNC,
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
100 REQ_MKNOD, REQ_READDIR,
101 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104};
105 194
106#define AIO_REQ_KLASS "IO::AIO::REQ" 195 fiemap->fm_start = req->offs;
107#define AIO_GRP_KLASS "IO::AIO::GRP" 196 fiemap->fm_length = req->size;
197 fiemap->fm_flags = req->int2;
198 fiemap->fm_extent_count = count;
108 199
109typedef struct aio_cb 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
110{ 201 return;
111 struct aio_cb *volatile next;
112 202
113 SV *callback, *fh; 203 if (req->int3 >= 0 /* not autosizing */
114 SV *sv1, *sv2; 204 || !fiemap->fm_mapped_extents /* no more extents */
115 void *ptr1, *ptr2; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
116 off_t offs; 206 goto done;
117 size_t size;
118 ssize_t result;
119 207
120 STRLEN stroffset; 208 /* else we have to loop -
121 int type; 209 * it would be tempting (actually I tried that first) to just query the
122 int int1, int2; 210 * number of extents needed, but linux often feels like not returning all
123 int errorno; 211 * extents, without telling us it left any out. this complicates
124 mode_t mode; /* open */ 212 * this quite a bit.
213 */
125 214
126 unsigned char flags; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
127 unsigned char pri;
128 216
129 SV *self; /* the perl counterpart of this request, if any */ 217 for (;;)
130 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
131} aio_cb;
132
133enum {
134 FLAG_CANCELLED = 0x01,
135 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
136 FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */
137};
138
139typedef aio_cb *aio_req;
140typedef aio_cb *aio_req_ornot;
141
142enum {
143 PRI_MIN = -4,
144 PRI_MAX = 4,
145
146 DEFAULT_PRI = 0,
147 PRI_BIAS = -PRI_MIN,
148 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
149};
150
151#define AIO_TICKS ((1000000 + 1023) >> 10)
152
153static unsigned int max_poll_time = 0;
154static unsigned int max_poll_reqs = 0;
155
156/* calculcate time difference in ~1/AIO_TICKS of a second */
157static int tvdiff (struct timeval *tv1, struct timeval *tv2)
158{
159 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
160 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
161}
162
163static int next_pri = DEFAULT_PRI + PRI_BIAS;
164
165static unsigned int started, idle, wanted;
166
167#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
168# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
169#else
170# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171#endif
172
173#define LOCK(mutex) pthread_mutex_lock (&(mutex))
174#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
175
176/* worker threads management */
177static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
178
179typedef struct worker {
180 /* locked by wrklock */
181 struct worker *prev, *next;
182
183 pthread_t tid;
184
185 /* locked by reslock, reqlock or wrklock */
186 aio_req req; /* currently processed request */
187 void *dbuf;
188 DIR *dirp;
189} worker;
190
191static worker wrk_first = { &wrk_first, &wrk_first, 0 };
192
193static void worker_clear (worker *wrk)
194{
195 if (wrk->dirp)
196 { 218 {
197 closedir (wrk->dirp); 219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
198 wrk->dirp = 0; 220 char scratch[3072];
199 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
200 222
201 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
202 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
203 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
204 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
205 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
206}
207 228
208static void worker_free (worker *wrk) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
209{
210 wrk->next->prev = wrk->prev;
211 wrk->prev->next = wrk->next;
212
213 free (wrk);
214}
215
216static volatile unsigned int nreqs, nready, npending;
217static volatile unsigned int max_idle = 4;
218static volatile unsigned int max_outstanding = 0xffffffff;
219static int respipe [2];
220
221static pthread_mutex_t reslock = AIO_MUTEX_INIT;
222static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
223static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
224
225#if WORDACCESS_UNSAFE
226
227static unsigned int get_nready ()
228{
229 unsigned int retval;
230
231 LOCK (reqlock);
232 retval = nready;
233 UNLOCK (reqlock);
234
235 return retval;
236}
237
238static unsigned int get_npending ()
239{
240 unsigned int retval;
241
242 LOCK (reslock);
243 retval = npending;
244 UNLOCK (reslock);
245
246 return retval;
247}
248
249static unsigned int get_nthreads ()
250{
251 unsigned int retval;
252
253 LOCK (wrklock);
254 retval = started;
255 UNLOCK (wrklock);
256
257 return retval;
258}
259
260#else
261
262# define get_nready() nready
263# define get_npending() npending
264# define get_nthreads() started
265
266#endif
267
268/*
269 * a somewhat faster data structure might be nice, but
270 * with 8 priorities this actually needs <20 insns
271 * per shift, the most expensive operation.
272 */
273typedef struct {
274 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
275 int size;
276} reqq;
277
278static reqq req_queue;
279static reqq res_queue;
280
281int reqq_push (reqq *q, aio_req req)
282{
283 int pri = req->pri;
284 req->next = 0;
285
286 if (q->qe[pri])
287 {
288 q->qe[pri]->next = req;
289 q->qe[pri] = req;
290 }
291 else
292 q->qe[pri] = q->qs[pri] = req;
293
294 return q->size++;
295}
296
297aio_req reqq_shift (reqq *q)
298{
299 int pri;
300
301 if (!q->size)
302 return 0; 230 return;
303 231
304 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
305 234
306 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
307 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
308 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
309
310 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
311 { 244 {
312 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
313 q->qe[pri] = 0;
314 246
315 return req; 247 if (e->fe_logical + e->fe_length >= end_offset)
248 goto done;
249
250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
251
252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
253 goto done;
254
316 } 255 }
317 } 256 }
318 257
319 abort (); 258done:
320} 259 req->result = 0;
321 260
322static int poll_cb (); 261#else
323static void req_invoke (aio_req req); 262 errno = ENOSYS;
263#endif
264}
265
266/*****************************************************************************/
267
268enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270};
271
272typedef eio_req *aio_req;
273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
275
276static SV *on_next_submit;
277static int next_pri = EIO_PRI_DEFAULT;
278static int max_outstanding;
279
280static s_epipe respipe;
281
324static void req_free (aio_req req); 282static void req_destroy (aio_req req);
325static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
326 284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
298
327/* must be called at most once */ 299/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
329{ 302{
330 if (!req->self) 303 if (!req->self)
331 { 304 {
332 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
333 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
334 } 307 }
335 308
336 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
337} 310}
338 311
339static aio_req SvAIO_REQ (SV *sv) 312static SV *
313newSVaio_wd (aio_wd wd)
314{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
340{ 320{
341 MAGIC *mg; 321 MAGIC *mg;
342 322
343 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
344 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
345 329
346 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
347 331
348 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
349} 333}
350 334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
351static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
352{ 373{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
354 { 375 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 376 dSP;
360 377
361 ENTER; 378 ENTER;
362 SAVETMPS; 379 SAVETMPS;
363 PUSHMARK (SP); 380 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 382 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 384 SPAGAIN;
368 FREETMPS; 385 FREETMPS;
369 LEAVE; 386 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 387 }
380} 388}
381 389
382static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
383{ 392{
384 --grp->size; 393 eio_submit (req);
385 394
386 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 396 {
392 req_invoke (grp); 397 dSP;
393 req_free (grp); 398 SV *cb = sv_2mortal (on_next_submit);
399
400 on_next_submit = 0;
401
402 PUSHMARK (SP);
403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
394 } 405 }
395} 406}
396 407
408static int
397static void req_invoke (aio_req req) 409req_invoke (eio_req *req)
398{ 410{
399 dSP;
400
401 if (req->flags & FLAG_SV1_RO_OFF) 411 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 412 SvREADONLY_off (req->sv2);
403 413
404 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 414 if (!EIO_CANCELLED (req) && req->callback)
405 { 415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
406 ENTER; 420 ENTER;
407 SAVETMPS; 421 SAVETMPS;
408 PUSHMARK (SP); 422 PUSHMARK (SP);
409 EXTEND (SP, 1); 423 EXTEND (SP, 1);
410 424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
427 {
428 sv_result = sv_result_cache; sv_result_cache = 0;
429 SvIV_set (sv_result, req->result);
430 SvIOK_only (sv_result);
431 }
432 else
433 {
434 sv_result = newSViv (req->result);
435 SvREADONLY_on (sv_result);
436 }
437
411 switch (req->type) 438 switch (req->type)
412 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
413 case REQ_READDIR: 444 case EIO_READDIR:
414 { 445 {
415 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
416 447
417 if (req->result >= 0) 448 if (req->result >= 0)
418 { 449 {
419 int i; 450 int i;
420 char *buf = req->ptr2; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
421 AV *av = newAV (); 453 AV *av = newAV ();
422 454
423 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
424 456
425 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
426 { 458 {
427 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428 462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
429 av_store (av, i, sv); 483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
430 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
431 } 493 }
432 494
433 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
434 } 496 }
435 497
436 PUSHs (rv); 498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
437 } 502 }
438 break; 503 break;
439 504
440 case REQ_OPEN: 505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
441 { 511 {
442 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
443 SV *fh; 513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
444 524
445 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
446 PUTBACK;
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
448 SPAGAIN;
449 526
450 fh = SvREFCNT_inc (POPs); 527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
451 540
452 PUSHMARK (SP); 541 PUSHs (rv);
453 XPUSHs (sv_2mortal (fh));
454 } 542 }
543
455 break; 544 break;
456 545
457 case REQ_GROUP: 546 case EIO_GROUP:
458 req->int1 = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
459 548
460 if (req->sv1) 549 if (req->sv1)
461 { 550 {
462 int i; 551 int i;
… …
466 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
467 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
468 } 557 }
469 break; 558 break;
470 559
471 case REQ_NOP: 560 case EIO_NOP:
472 case REQ_BUSY: 561 case EIO_BUSY:
473 break; 562 break;
474 563
475 case REQ_READLINK: 564 case EIO_READLINK:
565 case EIO_REALPATH:
476 if (req->result > 0) 566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
477 { 598 {
478 SvCUR_set (req->sv1, req->result); 599#if HAVE_FIEMAP
479 *SvEND (req->sv1) = 0;
480 PUSHs (req->sv1); 600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
481 } 631 }
632 else
633 PUSHs (sv_result);
482 break; 634 break;
483 635
484 case REQ_STAT: 636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
485 case REQ_LSTAT: 637 if (req->result > 0)
486 case REQ_FSTAT: 638 SvIV_set (sv_result, 0);
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 639 /* FALLTHROUGH */
488 PL_laststatval = req->result;
489 PL_statcache = *(Stat_t *)(req->ptr2);
490 PUSHs (sv_2mortal (newSViv (req->result)));
491 break;
492
493 case REQ_READ:
494 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
495 *SvEND (req->sv1) = 0;
496 PUSHs (sv_2mortal (newSViv (req->result)));
497 break;
498 640
499 default: 641 default:
500 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
501 break; 643 break;
502 } 644 }
503 645
504 errno = req->errorno; 646 errno = req->errorno;
505 647
506 PUTBACK; 648 PUTBACK;
507 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
509 656
510 FREETMPS; 657 FREETMPS;
511 LEAVE; 658 LEAVE;
659
660 PUTBACK;
512 } 661 }
513 662
514 if (req->grp) 663 return !!SvTRUE (ERRSV);
515 {
516 aio_req grp = req->grp;
517
518 /* unlink request */
519 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
520 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
521
522 if (grp->grp_first == req)
523 grp->grp_first = req->grp_next;
524
525 aio_grp_dec (grp);
526 }
527
528 if (SvTRUE (ERRSV))
529 {
530 req_free (req);
531 croak (0);
532 }
533} 664}
534 665
535static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
536{ 668{
537 if (req->self) 669 if (req->self)
538 { 670 {
539 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
540 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
541 } 673 }
542 674
543 SvREFCNT_dec (req->fh);
544 SvREFCNT_dec (req->sv1); 675 SvREFCNT_dec (req->sv1);
545 SvREFCNT_dec (req->sv2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
546 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
547 680
548 if (req->flags & FLAG_PTR2_FREE)
549 free (req->ptr2);
550
551 Safefree (req); 681 free (req);
552} 682}
553 683
684static void
554static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
555{ 686{
556 aio_req sub;
557
558 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
559 return; 688 return;
560 689
561 SvREFCNT_dec (grp->sv2); 690 SvREFCNT_dec (grp->sv2);
562 grp->sv2 = 0; 691 grp->sv2 = 0;
563 692
564 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
565 req_cancel (sub);
566} 694}
567 695
568static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
569{ 698{
570 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
571 700 croak ("IO::AIO: unable to initialize result pipe");
572 req_cancel_subs (req);
573} 701}
574 702
575static void *aio_proc(void *arg); 703static void
576 704poll_wait (void)
577static void start_thread (void)
578{ 705{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590#ifdef PTHREAD_SCOPE_PROCESS
591 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
592#endif
593
594 sigfillset (&fullsigset);
595
596 LOCK (wrklock);
597 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
598
599 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
600 {
601 wrk->prev = &wrk_first;
602 wrk->next = wrk_first.next;
603 wrk_first.next->prev = wrk;
604 wrk_first.next = wrk;
605 ++started;
606 }
607 else
608 free (wrk);
609
610 sigprocmask (SIG_SETMASK, &oldsigset, 0);
611 UNLOCK (wrklock);
612}
613
614static void maybe_start_thread ()
615{
616 if (get_nthreads () >= wanted)
617 return;
618
619 /* todo: maybe use idle here, but might be less exact */
620 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
621 return;
622
623 start_thread ();
624}
625
626static void req_send (aio_req req)
627{
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 pthread_cond_signal (&reqwait);
634 UNLOCK (reqlock);
635
636 maybe_start_thread ();
637}
638
639static void end_thread (void)
640{
641 aio_req req;
642
643 Newz (0, req, 1, aio_cb);
644
645 req->type = REQ_QUIT;
646 req->pri = PRI_MAX + PRI_BIAS;
647
648 LOCK (reqlock);
649 reqq_push (&req_queue, req);
650 pthread_cond_signal (&reqwait);
651 UNLOCK (reqlock);
652
653 LOCK (wrklock);
654 --started;
655 UNLOCK (wrklock);
656}
657
658static void set_max_idle (int nthreads)
659{
660 if (WORDACCESS_UNSAFE) LOCK (reqlock);
661 max_idle = nthreads <= 0 ? 1 : nthreads;
662 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
663}
664
665static void min_parallel (int nthreads)
666{
667 if (wanted < nthreads)
668 wanted = nthreads;
669}
670
671static void max_parallel (int nthreads)
672{
673 if (wanted > nthreads)
674 wanted = nthreads;
675
676 while (started > wanted)
677 end_thread ();
678}
679
680static void poll_wait ()
681{
682 fd_set rfd;
683
684 while (nreqs) 706 while (eio_nreqs ())
685 { 707 {
686 int size; 708 int size;
687 if (WORDACCESS_UNSAFE) LOCK (reslock); 709
710 X_LOCK (EIO_POOL->reslock);
688 size = res_queue.size; 711 size = EIO_POOL->res_queue.size;
689 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 712 X_UNLOCK (EIO_POOL->reslock);
690 713
691 if (size) 714 if (size)
692 return; 715 return;
693 716
694 maybe_start_thread (); 717 etp_maybe_start_thread (EIO_POOL);
695 718
696 FD_ZERO(&rfd); 719 s_epipe_wait (&respipe);
697 FD_SET(respipe [0], &rfd);
698
699 select (respipe [0] + 1, &rfd, 0, 0, 0);
700 } 720 }
701} 721}
702 722
703static int poll_cb () 723static int
724poll_cb (void)
704{ 725{
705 dSP;
706 int count = 0;
707 int maxreqs = max_poll_reqs;
708 int do_croak = 0;
709 struct timeval tv_start, tv_now;
710 aio_req req;
711
712 if (max_poll_time)
713 gettimeofday (&tv_start, 0);
714
715 for (;;) 726 for (;;)
716 { 727 {
717 for (;;) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
718 { 836 {
719 maybe_start_thread (); 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
720 839
721 LOCK (reslock); 840 if (SvOK (wdob))
722 req = reqq_shift (&res_queue);
723
724 if (req)
725 { 841 {
726 --npending; 842 *wd = SvAIO_WD (wdob);
727 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
728 if (!res_queue.size)
729 {
730 /* read any signals sent by the worker threads */
731 char buf [32];
732 while (read (respipe [0], buf, 32) == 32)
733 ;
734 }
735 }
736
737 UNLOCK (reslock);
738
739 if (!req)
740 break;
741
742 --nreqs;
743
744 if (req->type == REQ_GROUP && req->size)
745 {
746 req->int1 = 1; /* mark request as delayed */
747 continue;
748 } 844 }
749 else 845 else
750 { 846 *wd = EIO_INVALID_WD;
751 req_invoke (req);
752
753 count++;
754 }
755
756 req_free (req);
757
758 if (maxreqs && !--maxreqs)
759 break;
760
761 if (max_poll_time)
762 {
763 gettimeofday (&tv_now, 0);
764
765 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
766 break;
767 }
768 } 847 }
848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
849 {
850 *wd = (aio_wd)(long)SvIVX (rv);
851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
854 }
855 else
856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
857 }
769 858
770 if (nreqs <= max_outstanding) 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
861}
862
863static void ecb_noinline
864req_set_path1 (aio_req req, SV *path)
865{
866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
867}
868
869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
871{
872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
873
874 switch (SvTYPE (rv))
875 {
876 case SVt_PVIO:
877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
771 break; 882 break;
772 883
773 poll_wait (); 884 default:
774 885 req->type = type_path;
775 ++maxreqs; 886 req_set_path1 (req, fh_or_path);
887 break;
776 } 888 }
777
778 return count;
779} 889}
780 890
781static void create_pipe () 891XS(boot_IO__AIO) ecb_cold;
782{
783 if (pipe (respipe))
784 croak ("unable to initialize result pipe");
785 892
786 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
787 croak ("cannot set result pipe to nonblocking mode");
788
789 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791}
792
793/*****************************************************************************/
794/* work around various missing functions */
795
796#if !HAVE_PREADWRITE
797# define pread aio_pread
798# define pwrite aio_pwrite
799
800/*
801 * make our pread/pwrite safe against themselves, but not against
802 * normal read/write by using a mutex. slows down execution a lot,
803 * but that's your problem, not mine.
804 */
805static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
806
807static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
808{
809 ssize_t res;
810 off_t ooffset;
811
812 LOCK (preadwritelock);
813 ooffset = lseek (fd, 0, SEEK_CUR);
814 lseek (fd, offset, SEEK_SET);
815 res = read (fd, buf, count);
816 lseek (fd, ooffset, SEEK_SET);
817 UNLOCK (preadwritelock);
818
819 return res;
820}
821
822static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
823{
824 ssize_t res;
825 off_t ooffset;
826
827 LOCK (preadwritelock);
828 ooffset = lseek (fd, 0, SEEK_CUR);
829 lseek (fd, offset, SEEK_SET);
830 res = write (fd, buf, count);
831 lseek (fd, offset, SEEK_SET);
832 UNLOCK (preadwritelock);
833
834 return res;
835}
836#endif
837
838#if !HAVE_FDATASYNC
839# define fdatasync fsync
840#endif
841
842#if !HAVE_READAHEAD
843# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
844
845static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
846{
847 dBUF;
848
849 while (count > 0)
850 {
851 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
852
853 pread (fd, aio_buf, len, offset);
854 offset += len;
855 count -= len;
856 }
857
858 errno = 0;
859}
860
861#endif
862
863#if !HAVE_READDIR_R
864# define readdir_r aio_readdir_r
865
866static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
867
868static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
869{
870 struct dirent *e;
871 int errorno;
872
873 LOCK (readdirlock);
874
875 e = readdir (dirp);
876 errorno = errno;
877
878 if (e)
879 {
880 *res = ent;
881 strcpy (ent->d_name, e->d_name);
882 }
883 else
884 *res = 0;
885
886 UNLOCK (readdirlock);
887
888 errno = errorno;
889 return e ? 0 : -1;
890}
891#endif
892
893/* sendfile always needs emulation */
894static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
895{
896 ssize_t res;
897
898 if (!count)
899 return 0;
900
901#if HAVE_SENDFILE
902# if __linux
903 res = sendfile (ofd, ifd, &offset, count);
904
905# elif __freebsd
906 /*
907 * Of course, the freebsd sendfile is a dire hack with no thoughts
908 * wasted on making it similar to other I/O functions.
909 */
910 {
911 off_t sbytes;
912 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
913
914 if (res < 0 && sbytes)
915 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
916 res = sbytes;
917 }
918
919# elif __hpux
920 res = sendfile (ofd, ifd, offset, count, 0, 0);
921
922# elif __solaris
923 {
924 struct sendfilevec vec;
925 size_t sbytes;
926
927 vec.sfv_fd = ifd;
928 vec.sfv_flag = 0;
929 vec.sfv_off = offset;
930 vec.sfv_len = count;
931
932 res = sendfilev (ofd, &vec, 1, &sbytes);
933
934 if (res < 0 && sbytes)
935 res = sbytes;
936 }
937
938# endif
939#else
940 res = -1;
941 errno = ENOSYS;
942#endif
943
944 if (res < 0
945 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
946#if __solaris
947 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
948#endif
949 )
950 )
951 {
952 /* emulate sendfile. this is a major pain in the ass */
953 dBUF;
954
955 res = 0;
956
957 while (count)
958 {
959 ssize_t cnt;
960
961 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
962
963 if (cnt <= 0)
964 {
965 if (cnt && !res) res = -1;
966 break;
967 }
968
969 cnt = write (ofd, aio_buf, cnt);
970
971 if (cnt <= 0)
972 {
973 if (cnt && !res) res = -1;
974 break;
975 }
976
977 offset += cnt;
978 res += cnt;
979 count -= cnt;
980 }
981 }
982
983 return res;
984}
985
986/* read a full directory */
987static void scandir_ (aio_req req, worker *self)
988{
989 DIR *dirp;
990 union
991 {
992 struct dirent d;
993 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
994 } *u;
995 struct dirent *entp;
996 char *name, *names;
997 int memlen = 4096;
998 int memofs = 0;
999 int res = 0;
1000 int errorno;
1001
1002 LOCK (wrklock);
1003 self->dirp = dirp = opendir (req->ptr1);
1004 self->dbuf = u = malloc (sizeof (*u));
1005 req->flags |= FLAG_PTR2_FREE;
1006 req->ptr2 = names = malloc (memlen);
1007 UNLOCK (wrklock);
1008
1009 if (dirp && u && names)
1010 for (;;)
1011 {
1012 errno = 0;
1013 readdir_r (dirp, &u->d, &entp);
1014
1015 if (!entp)
1016 break;
1017
1018 name = entp->d_name;
1019
1020 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1021 {
1022 int len = strlen (name) + 1;
1023
1024 res++;
1025
1026 while (memofs + len > memlen)
1027 {
1028 memlen *= 2;
1029 LOCK (wrklock);
1030 req->ptr2 = names = realloc (names, memlen);
1031 UNLOCK (wrklock);
1032
1033 if (!names)
1034 break;
1035 }
1036
1037 memcpy (names + memofs, name, len);
1038 memofs += len;
1039 }
1040 }
1041
1042 if (errno)
1043 res = -1;
1044
1045 req->result = res;
1046}
1047
1048/*****************************************************************************/
1049
1050static void *aio_proc (void *thr_arg)
1051{
1052 aio_req req;
1053 struct timespec ts;
1054 worker *self = (worker *)thr_arg;
1055
1056 /* try to distribute timeouts somewhat evenly */
1057 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1058 * (1000000000UL / 1024UL);
1059
1060 for (;;)
1061 {
1062 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1063
1064 LOCK (reqlock);
1065
1066 for (;;)
1067 {
1068 self->req = req = reqq_shift (&req_queue);
1069
1070 if (req)
1071 break;
1072
1073 ++idle;
1074
1075 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1076 == ETIMEDOUT)
1077 {
1078 if (idle > max_idle)
1079 {
1080 --idle;
1081 UNLOCK (reqlock);
1082 LOCK (wrklock);
1083 --started;
1084 UNLOCK (wrklock);
1085 goto quit;
1086 }
1087
1088 /* we are allowed to idle, so do so without any timeout */
1089 pthread_cond_wait (&reqwait, &reqlock);
1090 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091 }
1092
1093 --idle;
1094 }
1095
1096 --nready;
1097
1098 UNLOCK (reqlock);
1099
1100 errno = 0; /* strictly unnecessary */
1101
1102 if (!(req->flags & FLAG_CANCELLED))
1103 switch (req->type)
1104 {
1105 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1106 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1107
1108 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1109 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1110
1111 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1113 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1114
1115 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1116 case REQ_CLOSE: req->result = close (req->int1); break;
1117 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 /* write a dummy byte to the pipe so fh becomes ready */
1159 write (respipe [1], &respipe, 1);
1160
1161 self->req = 0;
1162 worker_clear (self);
1163
1164 UNLOCK (reslock);
1165 }
1166
1167quit:
1168 LOCK (wrklock);
1169 worker_free (self);
1170 UNLOCK (wrklock);
1171
1172 return 0;
1173}
1174
1175/*****************************************************************************/
1176
1177static void atfork_prepare (void)
1178{
1179 LOCK (wrklock);
1180 LOCK (reqlock);
1181 LOCK (reslock);
1182#if !HAVE_PREADWRITE
1183 LOCK (preadwritelock);
1184#endif
1185#if !HAVE_READDIR_R
1186 LOCK (readdirlock);
1187#endif
1188}
1189
1190static void atfork_parent (void)
1191{
1192#if !HAVE_READDIR_R
1193 UNLOCK (readdirlock);
1194#endif
1195#if !HAVE_PREADWRITE
1196 UNLOCK (preadwritelock);
1197#endif
1198 UNLOCK (reslock);
1199 UNLOCK (reqlock);
1200 UNLOCK (wrklock);
1201}
1202
1203static void atfork_child (void)
1204{
1205 aio_req prv;
1206
1207 while (prv = reqq_shift (&req_queue))
1208 req_free (prv);
1209
1210 while (prv = reqq_shift (&res_queue))
1211 req_free (prv);
1212
1213 while (wrk_first.next != &wrk_first)
1214 {
1215 worker *wrk = wrk_first.next;
1216
1217 if (wrk->req)
1218 req_free (wrk->req);
1219
1220 worker_clear (wrk);
1221 worker_free (wrk);
1222 }
1223
1224 started = 0;
1225 idle = 0;
1226 nreqs = 0;
1227 nready = 0;
1228 npending = 0;
1229
1230 close (respipe [0]);
1231 close (respipe [1]);
1232 create_pipe ();
1233
1234 atfork_parent ();
1235}
1236
1237#define dREQ \
1238 aio_req req; \
1239 int req_pri = next_pri; \
1240 next_pri = DEFAULT_PRI + PRI_BIAS; \
1241 \
1242 if (SvOK (callback) && !SvROK (callback)) \
1243 croak ("callback must be undef or of reference type"); \
1244 \
1245 Newz (0, req, 1, aio_cb); \
1246 if (!req) \
1247 croak ("out of memory during aio_req allocation"); \
1248 \
1249 req->callback = newSVsv (callback); \
1250 req->pri = req_pri
1251
1252#define REQ_SEND \
1253 req_send (req); \
1254 \
1255 if (GIMME_V != G_VOID) \
1256 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1257
1258MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
1259 894
1260PROTOTYPES: ENABLE 895PROTOTYPES: ENABLE
1261 896
1262BOOT: 897BOOT:
1263{ 898{
899 static const struct {
900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
906
907 /* you have to re-run ./gendef0 after adding/removing any constants here */
908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
912
913 /* for lseek */
914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
916
917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
923
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
930
931 /* the second block will be 0 when missing */
932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
939
940 const_iv (O_ASYNC)
941 const_iv (O_DIRECT)
942 const_iv (O_NOATIME)
943
944 const_iv (O_CLOEXEC)
945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_iv (ST_RDONLY)
969 const_iv (ST_NOSUID)
970 const_iv (ST_NODEV)
971 const_iv (ST_NOEXEC)
972 const_iv (ST_SYNCHRONOUS)
973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
980
981 const_iv (PROT_NONE)
982 const_iv (PROT_EXEC)
983 const_iv (PROT_READ)
984 const_iv (PROT_WRITE)
985
986 const_iv (MAP_PRIVATE)
987 const_iv (MAP_SHARED)
988 const_iv (MAP_FIXED)
989 const_iv (MAP_ANONYMOUS)
990
991 /* linuxish */
992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
1000
1001 const_iv (FIFREEZE)
1002 const_iv (FITHAW)
1003 const_iv (FITRIM)
1004 const_iv (FICLONE)
1005 const_iv (FICLONERANGE)
1006 const_iv (FIDEDUPERANGE)
1007
1008 const_iv (FS_IOC_GETFLAGS)
1009 const_iv (FS_IOC_SETFLAGS)
1010 const_iv (FS_IOC_GETVERSION)
1011 const_iv (FS_IOC_SETVERSION)
1012 const_iv (FS_IOC_FIEMAP)
1013 const_iv (FS_IOC_FSGETXATTR)
1014 const_iv (FS_IOC_FSSETXATTR)
1015 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1016 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1017 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1018
1019 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1020
1021 const_iv (FS_SECRM_FL)
1022 const_iv (FS_UNRM_FL)
1023 const_iv (FS_COMPR_FL)
1024 const_iv (FS_SYNC_FL)
1025 const_iv (FS_IMMUTABLE_FL)
1026 const_iv (FS_APPEND_FL)
1027 const_iv (FS_NODUMP_FL)
1028 const_iv (FS_NOATIME_FL)
1029 const_iv (FS_DIRTY_FL)
1030 const_iv (FS_COMPRBLK_FL)
1031 const_iv (FS_NOCOMP_FL)
1032 const_iv (FS_ENCRYPT_FL)
1033 const_iv (FS_BTREE_FL)
1034 const_iv (FS_INDEX_FL)
1035 const_iv (FS_JOURNAL_DATA_FL)
1036 const_iv (FS_NOTAIL_FL)
1037 const_iv (FS_DIRSYNC_FL)
1038 const_iv (FS_TOPDIR_FL)
1039 const_iv (FS_FL_USER_MODIFIABLE)
1040
1041 const_iv (FS_XFLAG_REALTIME)
1042 const_iv (FS_XFLAG_PREALLOC)
1043 const_iv (FS_XFLAG_IMMUTABLE)
1044 const_iv (FS_XFLAG_APPEND)
1045 const_iv (FS_XFLAG_SYNC)
1046 const_iv (FS_XFLAG_NOATIME)
1047 const_iv (FS_XFLAG_NODUMP)
1048 const_iv (FS_XFLAG_RTINHERIT)
1049 const_iv (FS_XFLAG_PROJINHERIT)
1050 const_iv (FS_XFLAG_NOSYMLINKS)
1051 const_iv (FS_XFLAG_EXTSIZE)
1052 const_iv (FS_XFLAG_EXTSZINHERIT)
1053 const_iv (FS_XFLAG_NODEFRAG)
1054 const_iv (FS_XFLAG_FILESTREAM)
1055 const_iv (FS_XFLAG_DAX)
1056 const_iv (FS_XFLAG_HASATTR)
1057
1058 const_iv (FIEMAP_FLAG_SYNC)
1059 const_iv (FIEMAP_FLAG_XATTR)
1060 const_iv (FIEMAP_FLAGS_COMPAT)
1061 const_iv (FIEMAP_EXTENT_LAST)
1062 const_iv (FIEMAP_EXTENT_UNKNOWN)
1063 const_iv (FIEMAP_EXTENT_DELALLOC)
1064 const_iv (FIEMAP_EXTENT_ENCODED)
1065 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1066 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1067 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1068 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1069 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1070 const_iv (FIEMAP_EXTENT_MERGED)
1071 const_iv (FIEMAP_EXTENT_SHARED)
1072
1073 const_iv (SPLICE_F_MOVE)
1074 const_iv (SPLICE_F_NONBLOCK)
1075 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT)
1077
1078 /* these are libeio constants, and are independent of gendef0 */
1079 const_eio (SEEK_SET)
1080 const_eio (SEEK_CUR)
1081 const_eio (SEEK_END)
1082
1083 const_eio (MCL_FUTURE)
1084 const_eio (MCL_CURRENT)
1085
1086 const_eio (MS_ASYNC)
1087 const_eio (MS_INVALIDATE)
1088 const_eio (MS_SYNC)
1089
1090 const_eio (MT_MODIFY)
1091
1092 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1093 const_eio (SYNC_FILE_RANGE_WRITE)
1094 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1095
1096 const_eio (FALLOC_FL_KEEP_SIZE)
1097 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE)
1100
1101 const_eio (RENAME_NOREPLACE)
1102 const_eio (RENAME_EXCHANGE)
1103 const_eio (RENAME_WHITEOUT)
1104
1105 const_eio (READDIR_DENTS)
1106 const_eio (READDIR_DIRS_FIRST)
1107 const_eio (READDIR_STAT_ORDER)
1108 const_eio (READDIR_FOUND_UNKNOWN)
1109
1110 const_eio (DT_UNKNOWN)
1111 const_eio (DT_FIFO)
1112 const_eio (DT_CHR)
1113 const_eio (DT_DIR)
1114 const_eio (DT_BLK)
1115 const_eio (DT_REG)
1116 const_eio (DT_LNK)
1117 const_eio (DT_SOCK)
1118 const_eio (DT_WHT)
1119 };
1120
1264 HV *stash = gv_stashpv ("IO::AIO", 1); 1121 aio_stash = gv_stashpv ("IO::AIO" , 1);
1122 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1123 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1124 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1265 1125
1266 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1126 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1127 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1268 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1271 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1272 1128
1273 create_pipe (); 1129 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1275}
1276 1130
1131 reinit ();
1132}
1133
1277void 1134void
1135reinit ()
1136 PROTOTYPE:
1137
1138void
1278max_poll_reqs (int nreqs) 1139max_poll_reqs (unsigned int nreqs)
1279 PROTOTYPE: $ 1140 PROTOTYPE: $
1280 CODE: 1141 CODE:
1281 max_poll_reqs = nreqs; 1142 eio_set_max_poll_reqs (nreqs);
1282 1143
1283void 1144void
1284max_poll_time (double nseconds) 1145max_poll_time (double nseconds)
1285 PROTOTYPE: $ 1146 PROTOTYPE: $
1286 CODE: 1147 CODE:
1287 max_poll_time = nseconds * AIO_TICKS; 1148 eio_set_max_poll_time (nseconds);
1288 1149
1289void 1150void
1290min_parallel (int nthreads) 1151min_parallel (unsigned int nthreads)
1291 PROTOTYPE: $
1292
1293void
1294max_parallel (int nthreads)
1295 PROTOTYPE: $
1296
1297void
1298max_idle (int nthreads)
1299 PROTOTYPE: $ 1152 PROTOTYPE: $
1300 CODE: 1153 CODE:
1301 set_max_idle (nthreads); 1154 eio_set_min_parallel (nthreads);
1302 1155
1303int 1156void
1304max_outstanding (int maxreqs) 1157max_parallel (unsigned int nthreads)
1305 PROTOTYPE: $ 1158 PROTOTYPE: $
1306 CODE: 1159 CODE:
1307 RETVAL = max_outstanding; 1160 eio_set_max_parallel (nthreads);
1161
1162void
1163max_idle (unsigned int nthreads)
1164 PROTOTYPE: $
1165 CODE:
1166 eio_set_max_idle (nthreads);
1167
1168void
1169idle_timeout (unsigned int seconds)
1170 PROTOTYPE: $
1171 CODE:
1172 eio_set_idle_timeout (seconds);
1173
1174void
1175max_outstanding (unsigned int maxreqs)
1176 PROTOTYPE: $
1177 CODE:
1308 max_outstanding = maxreqs; 1178 max_outstanding = maxreqs;
1309 OUTPUT:
1310 RETVAL
1311 1179
1312void 1180void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1181aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1314 SV * pathname
1315 int flags
1316 int mode
1317 SV * callback
1318 PROTOTYPE: $$$;$
1319 PPCODE: 1182 PPCODE:
1320{ 1183{
1321 dREQ; 1184 dREQ;
1322 1185
1186 req->type = EIO_WD_OPEN;
1187 req_set_path1 (req, pathname);
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1194 PPCODE:
1195{
1196 dREQ;
1197
1323 req->type = REQ_OPEN; 1198 req->type = EIO_OPEN;
1324 req->sv1 = newSVsv (pathname); 1199 req_set_path1 (req, pathname);
1325 req->ptr1 = SvPVbyte_nolen (pathname);
1326 req->int1 = flags; 1200 req->int1 = flags;
1327 req->mode = mode; 1201 req->int2 = mode;
1328 1202
1329 REQ_SEND; 1203 REQ_SEND;
1330} 1204}
1331 1205
1332void 1206void
1333aio_close (fh,callback=&PL_sv_undef) 1207aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1334 SV * fh
1335 SV * callback
1336 PROTOTYPE: $;$
1337 ALIAS: 1208 ALIAS:
1338 aio_close = REQ_CLOSE
1339 aio_fsync = REQ_FSYNC 1209 aio_fsync = EIO_FSYNC
1340 aio_fdatasync = REQ_FDATASYNC 1210 aio_fdatasync = EIO_FDATASYNC
1211 aio_syncfs = EIO_SYNCFS
1341 PPCODE: 1212 PPCODE:
1342{ 1213{
1214 int fd = s_fileno_croak (fh, 0);
1343 dREQ; 1215 dREQ;
1344 1216
1345 req->type = ix; 1217 req->type = ix;
1346 req->fh = newSVsv (fh); 1218 req->sv1 = newSVsv (fh);
1347 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1219 req->int1 = fd;
1348 1220
1349 REQ_SEND (req); 1221 REQ_SEND;
1350} 1222}
1351 1223
1352void 1224void
1225aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1226 PPCODE:
1227{
1228 int fd = s_fileno_croak (fh, 0);
1229 dREQ;
1230
1231 req->type = EIO_SYNC_FILE_RANGE;
1232 req->sv1 = newSVsv (fh);
1233 req->int1 = fd;
1234 req->offs = offset;
1235 req->size = nbytes;
1236 req->int2 = flags;
1237
1238 REQ_SEND;
1239}
1240
1241void
1242aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1243 PPCODE:
1244{
1245 int fd = s_fileno_croak (fh, 0);
1246 dREQ;
1247
1248 req->type = EIO_FALLOCATE;
1249 req->sv1 = newSVsv (fh);
1250 req->int1 = fd;
1251 req->int2 = mode;
1252 req->offs = offset;
1253 req->size = len;
1254
1255 REQ_SEND;
1256}
1257
1258void
1259aio_close (SV *fh, SV *callback = &PL_sv_undef)
1260 PPCODE:
1261{
1262 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1263 int fd = s_fileno_croak (fh, 0);
1264 dREQ;
1265
1266 if (expect_false (close_fd < 0))
1267 {
1268 int pipefd [2];
1269
1270 if (
1271#ifdef _WIN32
1272 _pipe (pipefd, 1, _O_BINARY) < 0
1273#else
1274 pipe (pipefd) < 0
1275 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1276#endif
1277 || close (pipefd [1]) < 0
1278 )
1279 abort (); /*D*/
1280
1281 close_fd = pipefd [0];
1282 }
1283
1284 req->type = EIO_DUP2;
1285 req->int1 = close_fd;
1286 req->sv2 = newSVsv (fh);
1287 req->int2 = fd;
1288
1289 REQ_SEND;
1290}
1291
1292void
1293aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1294 PPCODE:
1295{
1296 int fd = s_fileno_croak (fh, 0);
1297 dREQ;
1298
1299 req->type = EIO_SEEK;
1300 req->sv1 = newSVsv (fh);
1301 req->int1 = fd;
1302 req->offs = SvVAL64 (offset);
1303 req->int2 = whence;
1304
1305 REQ_SEND;
1306}
1307
1308void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1309aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1354 SV * fh
1355 UV offset
1356 UV length
1357 SV * data
1358 UV dataoffset
1359 SV * callback
1360 ALIAS: 1310 ALIAS:
1361 aio_read = REQ_READ 1311 aio_read = EIO_READ
1362 aio_write = REQ_WRITE 1312 aio_write = EIO_WRITE
1363 PROTOTYPE: $$$$$;$
1364 PPCODE: 1313 PPCODE:
1365{ 1314{
1366 STRLEN svlen; 1315 STRLEN svlen;
1316 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1367 char *svptr = SvPVbyte (data, svlen); 1317 char *svptr = SvPVbyte (data, svlen);
1368 1318 UV len = SvUV (length);
1369 SvUPGRADE (data, SVt_PV);
1370 SvPOK_on (data);
1371 1319
1372 if (dataoffset < 0) 1320 if (dataoffset < 0)
1373 dataoffset += svlen; 1321 dataoffset += svlen;
1374 1322
1375 if (dataoffset < 0 || dataoffset > svlen) 1323 if (dataoffset < 0 || dataoffset > svlen)
1376 croak ("data offset outside of string"); 1324 croak ("dataoffset outside of data scalar");
1377 1325
1378 if (ix == REQ_WRITE) 1326 if (ix == EIO_WRITE)
1379 { 1327 {
1380 /* write: check length and adjust. */ 1328 /* write: check length and adjust. */
1381 if (length < 0 || length + dataoffset > svlen) 1329 if (!SvOK (length) || len + dataoffset > svlen)
1382 length = svlen - dataoffset; 1330 len = svlen - dataoffset;
1383 } 1331 }
1384 else 1332 else
1385 { 1333 {
1386 /* read: grow scalar as necessary */ 1334 /* read: check type and grow scalar as necessary */
1335 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1387 svptr = SvGROW (data, length + dataoffset); 1336 svptr = sv_grow (data, len + dataoffset + 1);
1337 else if (SvCUR (data) < len + dataoffset)
1338 croak ("length + dataoffset outside of scalar, and cannot grow");
1388 } 1339 }
1389
1390 if (length < 0)
1391 croak ("length must not be negative");
1392 1340
1393 { 1341 {
1394 dREQ; 1342 dREQ;
1395 1343
1396 req->type = ix; 1344 req->type = ix;
1397 req->fh = newSVsv (fh); 1345 req->sv1 = newSVsv (fh);
1398 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1346 req->int1 = fd;
1399 : IoOFP (sv_2io (fh))); 1347 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req->offs = offset;
1401 req->size = length; 1348 req->size = len;
1402 req->sv1 = SvREFCNT_inc (data); 1349 req->sv2 = SvREFCNT_inc (data);
1403 req->ptr1 = (char *)svptr + dataoffset; 1350 req->ptr2 = (char *)svptr + dataoffset;
1404 req->stroffset = dataoffset; 1351 req->stroffset = dataoffset;
1405 1352
1406 if (!SvREADONLY (data)) 1353 if (!SvREADONLY (data))
1407 { 1354 {
1408 SvREADONLY_on (data); 1355 SvREADONLY_on (data);
1409 req->flags |= FLAG_SV1_RO_OFF; 1356 req->flags |= FLAG_SV2_RO_OFF;
1410 } 1357 }
1411 1358
1412 REQ_SEND; 1359 REQ_SEND;
1413 } 1360 }
1414} 1361}
1415 1362
1416void 1363void
1417aio_readlink (path,callback=&PL_sv_undef) 1364aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1418 SV * path 1365 ALIAS:
1419 SV * callback 1366 aio_ioctl = EIO_IOCTL
1420 PROTOTYPE: $$;$ 1367 aio_fcntl = EIO_FCNTL
1421 PPCODE: 1368 PPCODE:
1422{ 1369{
1423 SV *data; 1370 int fd = s_fileno_croak (fh, 0);
1371 char *svptr;
1372
1373 if (SvPOK (arg) || !SvNIOK (arg))
1374 {
1375 STRLEN svlen;
1376 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1377#ifdef IOCPARM_LEN
1378 STRLEN need = IOCPARM_LEN (request);
1379#else
1380 STRLEN need = 256;
1381#endif
1382
1383 if (svlen < need)
1384 svptr = SvGROW (arg, need);
1385 }
1386 else
1387 svptr = (char *)SvIV (arg);
1388
1389 {
1390 dREQ;
1391
1392 req->type = ix;
1393 req->sv1 = newSVsv (fh);
1394 req->int1 = fd;
1395 req->int2 = (long)request;
1396 req->sv2 = SvREFCNT_inc (arg);
1397 req->ptr2 = svptr;
1398
1399 REQ_SEND;
1400 }
1401}
1402
1403void
1404aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1405 ALIAS:
1406 aio_readlink = EIO_READLINK
1407 aio_realpath = EIO_REALPATH
1408 PPCODE:
1409{
1424 dREQ; 1410 dREQ;
1425 1411
1426 data = newSV (NAME_MAX);
1427 SvPOK_on (data);
1428
1429 req->type = REQ_READLINK; 1412 req->type = ix;
1430 req->fh = newSVsv (path); 1413 req_set_path1 (req, pathname);
1431 req->ptr2 = SvPVbyte_nolen (path);
1432 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data);
1434 1414
1435 REQ_SEND; 1415 REQ_SEND;
1436} 1416}
1437 1417
1438void 1418void
1439aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1419aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1440 SV * out_fh
1441 SV * in_fh
1442 UV in_offset
1443 UV length
1444 SV * callback
1445 PROTOTYPE: $$$$;$
1446 PPCODE: 1420 PPCODE:
1447{ 1421{
1422 int ifd = s_fileno_croak (in_fh , 0);
1423 int ofd = s_fileno_croak (out_fh, 1);
1448 dREQ; 1424 dREQ;
1449 1425
1450 req->type = REQ_SENDFILE; 1426 req->type = EIO_SENDFILE;
1451 req->fh = newSVsv (out_fh); 1427 req->sv1 = newSVsv (out_fh);
1452 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1428 req->int1 = ofd;
1453 req->sv2 = newSVsv (in_fh); 1429 req->sv2 = newSVsv (in_fh);
1454 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1430 req->int2 = ifd;
1455 req->offs = in_offset; 1431 req->offs = in_offset;
1456 req->size = length; 1432 req->size = length;
1457 1433
1458 REQ_SEND; 1434 REQ_SEND;
1459} 1435}
1460 1436
1461void 1437void
1462aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1438aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1463 SV * fh
1464 UV offset
1465 IV length
1466 SV * callback
1467 PROTOTYPE: $$$;$
1468 PPCODE: 1439 PPCODE:
1469{ 1440{
1441 int fd = s_fileno_croak (fh, 0);
1470 dREQ; 1442 dREQ;
1471 1443
1472 req->type = REQ_READAHEAD; 1444 req->type = EIO_READAHEAD;
1473 req->fh = newSVsv (fh); 1445 req->sv1 = newSVsv (fh);
1474 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1446 req->int1 = fd;
1475 req->offs = offset; 1447 req->offs = offset;
1476 req->size = length; 1448 req->size = length;
1477 1449
1478 REQ_SEND; 1450 REQ_SEND;
1479} 1451}
1480 1452
1481void 1453void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 1454aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1483 SV * fh_or_path
1484 SV * callback
1485 ALIAS: 1455 ALIAS:
1486 aio_stat = REQ_STAT 1456 aio_stat = EIO_STAT
1487 aio_lstat = REQ_LSTAT 1457 aio_lstat = EIO_LSTAT
1458 aio_statvfs = EIO_STATVFS
1488 PPCODE: 1459 PPCODE:
1489{ 1460{
1490 dREQ; 1461 dREQ;
1491 1462
1492 req->ptr2 = malloc (sizeof (Stat_t)); 1463 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1493 if (!req->ptr2)
1494 {
1495 req_free (req);
1496 croak ("out of memory during aio_stat statdata allocation");
1497 }
1498
1499 req->flags |= FLAG_PTR2_FREE;
1500
1501 if (SvPOK (fh_or_path))
1502 {
1503 req->type = ix;
1504 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (fh_or_path);
1506 }
1507 else
1508 {
1509 req->type = REQ_FSTAT;
1510 req->fh = newSVsv (fh_or_path);
1511 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512 }
1513 1464
1514 REQ_SEND; 1465 REQ_SEND;
1515} 1466}
1516 1467
1468UV
1469major (UV dev)
1470 ALIAS:
1471 minor = 1
1472 CODE:
1473 RETVAL = ix ? minor (dev) : major (dev);
1474 OUTPUT:
1475 RETVAL
1476
1477UV
1478makedev (UV maj, UV min)
1479 CODE:
1480 RETVAL = makedev (maj, min);
1481 OUTPUT:
1482 RETVAL
1483
1517void 1484void
1485aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1486 PPCODE:
1487{
1488 dREQ;
1489
1490 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1491 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1492 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1493
1494 REQ_SEND;
1495}
1496
1497void
1498aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1499 PPCODE:
1500{
1501 dREQ;
1502
1503 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1504 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1505
1506 REQ_SEND;
1507}
1508
1509void
1510aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1511 PPCODE:
1512{
1513 dREQ;
1514
1515 req->int2 = mode;
1516 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1528 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1529 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1530
1531 REQ_SEND;
1532}
1533
1534void
1535aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1536 PPCODE:
1537{
1538 dREQ;
1539
1540 req->type = EIO_READDIR;
1541 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1542
1543 if (flags & EIO_READDIR_DENTS)
1544 req->int1 |= EIO_READDIR_CUSTOM2;
1545
1546 req_set_path1 (req, pathname);
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1553 PPCODE:
1554{
1555 dREQ;
1556
1557 req->type = EIO_MKDIR;
1558 req->int2 = mode;
1559 req_set_path1 (req, pathname);
1560
1561 REQ_SEND;
1562}
1563
1564void
1518aio_unlink (pathname,callback=&PL_sv_undef) 1565aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1519 SV * pathname
1520 SV * callback
1521 ALIAS: 1566 ALIAS:
1522 aio_unlink = REQ_UNLINK 1567 aio_unlink = EIO_UNLINK
1523 aio_rmdir = REQ_RMDIR 1568 aio_rmdir = EIO_RMDIR
1524 aio_readdir = REQ_READDIR 1569 aio_readdir = EIO_READDIR
1525 PPCODE: 1570 PPCODE:
1526{ 1571{
1527 dREQ; 1572 dREQ;
1528 1573
1529 req->type = ix; 1574 req->type = ix;
1530 req->sv1 = newSVsv (pathname); 1575 req_set_path1 (req, pathname);
1531 req->ptr1 = SvPVbyte_nolen (pathname);
1532 1576
1533 REQ_SEND; 1577 REQ_SEND;
1534} 1578}
1535 1579
1536void 1580void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1581aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1538 SV * oldpath
1539 SV * newpath
1540 SV * callback
1541 ALIAS: 1582 ALIAS:
1542 aio_link = REQ_LINK 1583 aio_link = EIO_LINK
1543 aio_symlink = REQ_SYMLINK 1584 aio_symlink = EIO_SYMLINK
1544 aio_rename = REQ_RENAME 1585 aio_rename = EIO_RENAME
1545 PPCODE: 1586 PPCODE:
1546{ 1587{
1588 eio_wd wd2 = 0;
1547 dREQ; 1589 dREQ;
1548 1590
1549 req->type = ix; 1591 req->type = ix;
1550 req->fh = newSVsv (oldpath); 1592 req_set_path1 (req, oldpath);
1551 req->ptr2 = SvPVbyte_nolen (req->fh); 1593 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1552 req->sv1 = newSVsv (newpath); 1594 req->int3 = (long)wd2;
1553 req->ptr1 = SvPVbyte_nolen (newpath);
1554 1595
1555 REQ_SEND; 1596 REQ_SEND;
1556} 1597}
1557 1598
1558void 1599void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1600aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1560 SV * pathname
1561 SV * callback
1562 UV mode
1563 UV dev
1564 PPCODE: 1601 PPCODE:
1565{ 1602{
1603 eio_wd wd2 = 0;
1566 dREQ; 1604 dREQ;
1567 1605
1568 req->type = REQ_MKNOD; 1606 req->type = EIO_RENAME;
1569 req->sv1 = newSVsv (pathname); 1607 req_set_path1 (req, oldpath);
1570 req->ptr1 = SvPVbyte_nolen (pathname); 1608 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1571 req->mode = (mode_t)mode; 1609 req->int2 = flags;
1572 req->offs = dev; 1610 req->int3 = (long)wd2;
1573 1611
1574 REQ_SEND; 1612 REQ_SEND;
1575} 1613}
1576 1614
1577void 1615void
1578aio_busy (delay,callback=&PL_sv_undef) 1616aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1579 double delay
1580 SV * callback
1581 PPCODE: 1617 PPCODE:
1582{ 1618{
1583 dREQ; 1619 dREQ;
1584 1620
1585 req->type = REQ_BUSY; 1621 req->type = EIO_MKNOD;
1586 req->int1 = delay < 0. ? 0 : delay; 1622 req->int2 = (mode_t)mode;
1587 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1623 req->offs = dev;
1588 1624 req_set_path1 (req, pathname);
1625
1589 REQ_SEND; 1626 REQ_SEND;
1590} 1627}
1591 1628
1592void 1629void
1593aio_group (callback=&PL_sv_undef) 1630aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1594 SV * callback 1631 ALIAS:
1595 PROTOTYPE: ;$ 1632 aio_mtouch = EIO_MTOUCH
1633 aio_msync = EIO_MSYNC
1596 PPCODE: 1634 PPCODE:
1597{ 1635{
1636 STRLEN svlen;
1637 char *svptr = SvPVbyte (data, svlen);
1638 UV len = SvUV (length);
1639
1640 if (flags < 0)
1641 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1642
1643 if (offset < 0)
1644 offset += svlen;
1645
1646 if (offset < 0 || offset > svlen)
1647 croak ("offset outside of scalar");
1648
1649 if (!SvOK (length) || len + offset > svlen)
1650 len = svlen - offset;
1651
1652 {
1653 dREQ;
1654
1655 req->type = ix;
1656 req->sv2 = SvREFCNT_inc (data);
1657 req->ptr2 = (char *)svptr + offset;
1658 req->size = len;
1659 req->int1 = flags;
1660
1661 REQ_SEND;
1662 }
1663}
1664
1665void
1666aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 STRLEN svlen;
1670 char *svptr = SvPVbyte (data, svlen);
1671 UV len = SvUV (length);
1672
1673 if (offset < 0)
1674 offset += svlen;
1675
1676 if (offset < 0 || offset > svlen)
1677 croak ("offset outside of scalar");
1678
1679 if (!SvOK (length) || len + offset > svlen)
1680 len = svlen - offset;
1681
1682 {
1683 dREQ;
1684
1685 req->type = EIO_MLOCK;
1686 req->sv2 = SvREFCNT_inc (data);
1687 req->ptr2 = (char *)svptr + offset;
1688 req->size = len;
1689
1690 REQ_SEND;
1691 }
1692}
1693
1694void
1695aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1696 PPCODE:
1697{
1698 dREQ;
1699
1700 req->type = EIO_MLOCKALL;
1701 req->int1 = flags;
1702
1703 REQ_SEND;
1704}
1705
1706void
1707aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1708 PPCODE:
1709{
1710 int fd = s_fileno_croak (fh, 0);
1598 dREQ; 1711 dREQ;
1599 1712
1600 req->type = REQ_GROUP; 1713 req->type = EIO_CUSTOM;
1714 req->sv1 = newSVsv (fh);
1715 req->int1 = fd;
1601 1716
1602 req_send (req); 1717 req->feed = fiemap;
1603 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1718#if HAVE_FIEMAP
1604} 1719 /* keep our fingers crossed that the next two types are 64 bit */
1720 req->offs = start;
1721 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1722 req->int2 = flags;
1723 req->int3 = SvOK (count) ? SvIV (count) : -1;
1724#endif
1605 1725
1726 REQ_SEND;
1727}
1728
1606void 1729void
1607aio_nop (callback=&PL_sv_undef) 1730aio_busy (double delay, SV *callback = &PL_sv_undef)
1608 SV * callback
1609 PPCODE: 1731 PPCODE:
1610{ 1732{
1611 dREQ; 1733 dREQ;
1612 1734
1613 req->type = REQ_NOP; 1735 req->type = EIO_BUSY;
1736 req->nv1 = delay < 0. ? 0. : delay;
1614 1737
1615 REQ_SEND; 1738 REQ_SEND;
1616} 1739}
1617 1740
1741void
1742aio_group (SV *callback = &PL_sv_undef)
1743 PPCODE:
1744{
1745 dREQ;
1746
1747 req->type = EIO_GROUP;
1748
1749 PUTBACK;
1750 req_submit (req);
1751 SPAGAIN;
1752
1753 XPUSHs (req_sv (req, aio_grp_stash));
1754}
1755
1756void
1757aio_nop (SV *callback = &PL_sv_undef)
1758 ALIAS:
1759 aio_nop = EIO_NOP
1760 aio_sync = EIO_SYNC
1761 PPCODE:
1762{
1763 dREQ;
1764
1765 req->type = ix;
1766
1767 REQ_SEND;
1768}
1769
1618int 1770int
1619aioreq_pri (int pri = 0) 1771aioreq_pri (int pri = NO_INIT)
1620 PROTOTYPE: ;$
1621 CODE: 1772 CODE:
1622 RETVAL = next_pri - PRI_BIAS; 1773 RETVAL = next_pri;
1623 if (items > 0) 1774 if (items > 0)
1624 { 1775 {
1625 if (pri < PRI_MIN) pri = PRI_MIN; 1776 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1626 if (pri > PRI_MAX) pri = PRI_MAX; 1777 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1627 next_pri = pri + PRI_BIAS; 1778 next_pri = pri;
1628 } 1779 }
1629 OUTPUT: 1780 OUTPUT:
1630 RETVAL 1781 RETVAL
1631 1782
1632void 1783void
1633aioreq_nice (int nice = 0) 1784aioreq_nice (int nice = 0)
1634 CODE: 1785 CODE:
1635 nice = next_pri - nice; 1786 nice = next_pri - nice;
1636 if (nice < PRI_MIN) nice = PRI_MIN; 1787 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1637 if (nice > PRI_MAX) nice = PRI_MAX; 1788 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1638 next_pri = nice + PRI_BIAS; 1789 next_pri = nice;
1639 1790
1640void 1791void
1641flush () 1792flush ()
1642 PROTOTYPE:
1643 CODE: 1793 CODE:
1644 while (nreqs) 1794 while (eio_nreqs ())
1645 { 1795 {
1646 poll_wait (); 1796 poll_wait ();
1647 poll_cb (0); 1797 poll_cb ();
1648 } 1798 }
1649 1799
1650void 1800int
1651poll() 1801poll ()
1652 PROTOTYPE:
1653 CODE: 1802 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait (); 1803 poll_wait ();
1657 poll_cb (0); 1804 RETVAL = poll_cb ();
1658 }
1659
1660int
1661poll_fileno()
1662 PROTOTYPE:
1663 CODE:
1664 RETVAL = respipe [0];
1665 OUTPUT: 1805 OUTPUT:
1666 RETVAL 1806 RETVAL
1667 1807
1668int 1808int
1809poll_fileno ()
1810 CODE:
1811 RETVAL = s_epipe_fd (&respipe);
1812 OUTPUT:
1813 RETVAL
1814
1815int
1669poll_cb(...) 1816poll_cb (...)
1670 PROTOTYPE: 1817 PROTOTYPE:
1671 CODE: 1818 CODE:
1672 RETVAL = poll_cb (); 1819 RETVAL = poll_cb ();
1673 OUTPUT: 1820 OUTPUT:
1674 RETVAL 1821 RETVAL
1675 1822
1676void 1823void
1677poll_wait() 1824poll_wait ()
1678 PROTOTYPE:
1679 CODE: 1825 CODE:
1680 if (nreqs)
1681 poll_wait (); 1826 poll_wait ();
1682 1827
1683int 1828int
1684nreqs() 1829nreqs ()
1685 PROTOTYPE:
1686 CODE: 1830 CODE:
1687 RETVAL = nreqs; 1831 RETVAL = eio_nreqs ();
1688 OUTPUT: 1832 OUTPUT:
1689 RETVAL 1833 RETVAL
1690 1834
1691int 1835int
1692nready() 1836nready ()
1693 PROTOTYPE:
1694 CODE: 1837 CODE:
1695 RETVAL = get_nready (); 1838 RETVAL = eio_nready ();
1696 OUTPUT: 1839 OUTPUT:
1697 RETVAL 1840 RETVAL
1698 1841
1699int 1842int
1700npending() 1843npending ()
1701 PROTOTYPE:
1702 CODE: 1844 CODE:
1703 RETVAL = get_npending (); 1845 RETVAL = eio_npending ();
1704 OUTPUT: 1846 OUTPUT:
1705 RETVAL 1847 RETVAL
1706 1848
1707int 1849int
1708nthreads() 1850nthreads ()
1709 PROTOTYPE:
1710 CODE: 1851 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1852 RETVAL = eio_nthreads ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1853 OUTPUT:
1715 RETVAL 1854 RETVAL
1716 1855
1856int
1857fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1858 CODE:
1859 RETVAL = posix_fadvise (fh, offset, length, advice);
1860 OUTPUT:
1861 RETVAL
1862
1863IV
1864sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1865 CODE:
1866 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1867 OUTPUT:
1868 RETVAL
1869
1870void
1871mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1872 PPCODE:
1873 sv_unmagic (scalar, MMAP_MAGIC);
1874{
1875 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1876 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1877 if (addr == (void *)-1)
1878 XSRETURN_NO;
1879
1880 sv_force_normal (scalar);
1881
1882 /* we store the length in mg_obj, as namlen is I32 :/ */
1883 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1884 ->mg_obj = (SV *)length;
1885
1886 SvUPGRADE (scalar, SVt_PV); /* nop... */
1887
1888 if (!(prot & PROT_WRITE))
1889 SvREADONLY_on (scalar);
1890
1891 if (SvLEN (scalar))
1892 Safefree (SvPVX (scalar));
1893
1894 SvPVX (scalar) = (char *)addr;
1895 SvCUR_set (scalar, length);
1896 SvLEN_set (scalar, 0);
1897 SvPOK_only (scalar);
1898
1899 XSRETURN_YES;
1900}
1901
1902void
1903munmap (SV *scalar)
1904 CODE:
1905 sv_unmagic (scalar, MMAP_MAGIC);
1906
1907int
1908madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1909 ALIAS:
1910 mprotect = 1
1911 CODE:
1912{
1913 STRLEN svlen;
1914 void *addr = SvPVbyte (scalar, svlen);
1915 STRLEN len = SvUV (length);
1916
1917 if (offset < 0)
1918 offset += svlen;
1919
1920 if (offset < 0 || offset > svlen)
1921 croak ("offset outside of scalar");
1922
1923 if (!SvOK (length) || len + offset > svlen)
1924 len = svlen - offset;
1925
1926 addr = (void *)(((intptr_t)addr) + offset);
1927 eio_page_align (&addr, &len);
1928
1929 switch (ix)
1930 {
1931 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1932 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1933 }
1934}
1935 OUTPUT:
1936 RETVAL
1937
1938int
1939munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1940 CODE:
1941{
1942 STRLEN svlen;
1943 void *addr = SvPVbyte (scalar, svlen);
1944 size_t len = SvUV (length);
1945
1946 if (offset < 0)
1947 offset += svlen;
1948
1949 if (offset < 0 || offset > svlen)
1950 croak ("offset outside of scalar");
1951
1952 if (!SvOK (length) || len + offset > svlen)
1953 len = svlen - offset;
1954
1955 addr = (void *)(((intptr_t)addr) + offset);
1956 eio_page_align (&addr, &len);
1957#if _POSIX_MEMLOCK_RANGE
1958 RETVAL = munlock (addr, len);
1959#else
1960 RETVAL = EIO_ENOSYS ();
1961#endif
1962}
1963 OUTPUT:
1964 RETVAL
1965
1966int
1967munlockall ()
1968 CODE:
1969#if _POSIX_MEMLOCK
1970 munlockall ();
1971#else
1972 RETVAL = EIO_ENOSYS ();
1973#endif
1974 OUTPUT:
1975 RETVAL
1976
1977int
1978splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1979 CODE:
1980{
1981#if HAVE_LINUX_SPLICE
1982 loff_t off_in_, off_out_;
1983 RETVAL = splice (
1984 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1985 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1986 length, flags
1987 );
1988#else
1989 RETVAL = EIO_ENOSYS ();
1990#endif
1991}
1992 OUTPUT:
1993 RETVAL
1994
1995int
1996tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1997 CODE:
1998#if HAVE_LINUX_SPLICE
1999 RETVAL = tee (rfh, wfh, length, flags);
2000#else
2001 RETVAL = EIO_ENOSYS ();
2002#endif
2003 OUTPUT:
2004 RETVAL
2005
2006int
2007pipesize (aio_rfd rfh, int new_size = -1)
2008 PROTOTYPE: $;$
2009 CODE:
2010#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2011 if (new_size >= 0)
2012 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2013 else
2014 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2015#else
2016 errno = ENOSYS;
2017 RETVAL = -1;
2018#endif
2019 OUTPUT:
2020 RETVAL
2021
2022void
2023pipe2 (int flags = 0)
2024 PROTOTYPE: ;$
2025 PPCODE:
2026{
2027 int fd[2];
2028 int res;
2029
2030 if (flags)
2031#if HAVE_PIPE2
2032 res = pipe2 (fd, flags);
2033#else
2034 res = (errno = ENOSYS, -1);
2035#endif
2036 else
2037 res = pipe (fd);
2038
2039 if (!res)
2040 {
2041 EXTEND (SP, 2);
2042 PUSHs (newmortalFH (fd[0], O_RDONLY));
2043 PUSHs (newmortalFH (fd[1], O_WRONLY));
2044 }
2045}
2046
2047void _on_next_submit (SV *cb)
2048 CODE:
2049 SvREFCNT_dec (on_next_submit);
2050 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2051
1717PROTOTYPES: DISABLE 2052PROTOTYPES: DISABLE
2053
2054MODULE = IO::AIO PACKAGE = IO::AIO::WD
2055
2056BOOT:
2057{
2058 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2059 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2060}
2061
2062void
2063DESTROY (SV *self)
2064 CODE:
2065{
2066 aio_wd wd = SvAIO_WD (self);
2067#if HAVE_AT
2068 {
2069 SV *callback = &PL_sv_undef;
2070 dREQ; /* clobbers next_pri :/ */
2071 next_pri = req->pri; /* restore next_pri */
2072 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2073 req->type = EIO_WD_CLOSE;
2074 req->wd = wd;
2075 REQ_SEND;
2076 }
2077#else
2078 eio_wd_close_sync (wd);
2079#endif
2080}
1718 2081
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2082MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 2083
1721void 2084void
1722cancel (aio_req_ornot req) 2085cancel (aio_req_ornot req)
1723 CODE: 2086 CODE:
1724 req_cancel (req); 2087 eio_cancel (req);
1725 2088
1726void 2089void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2090cb (aio_req_ornot req, SV *callback = NO_INIT)
1728 CODE: 2091 PPCODE:
2092{
2093 if (GIMME_V != G_VOID)
2094 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2095
2096 if (items > 1)
2097 {
2098 SV *cb_cv = get_cb (callback);
2099
1729 SvREFCNT_dec (req->callback); 2100 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 2101 req->callback = SvREFCNT_inc (cb_cv);
2102 }
2103}
1731 2104
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2105MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 2106
1734void 2107void
1735add (aio_req grp, ...) 2108add (aio_req grp, ...)
1736 PPCODE: 2109 PPCODE:
1737{ 2110{
1738 int i; 2111 int i;
1739 aio_req req;
1740 2112
1741 if (grp->int1 == 2) 2113 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2114 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 2115
1744 for (i = 1; i < items; ++i ) 2116 for (i = 1; i < items; ++i )
1745 { 2117 {
2118 aio_req req;
2119
1746 if (GIMME_V != G_VOID) 2120 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2121 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 2122
1749 req = SvAIO_REQ (ST (i)); 2123 req = SvAIO_REQ (ST (i));
1750 2124
1751 if (req) 2125 if (req)
1752 { 2126 eio_grp_add (grp, req);
1753 ++grp->size;
1754 req->grp = grp;
1755
1756 req->grp_prev = 0;
1757 req->grp_next = grp->grp_first;
1758
1759 if (grp->grp_first)
1760 grp->grp_first->grp_prev = req;
1761
1762 grp->grp_first = req;
1763 }
1764 } 2127 }
1765} 2128}
1766 2129
1767void 2130void
1768cancel_subs (aio_req_ornot req) 2131cancel_subs (aio_req_ornot req)
… …
1777 AV *av; 2140 AV *av;
1778 2141
1779 grp->errorno = errno; 2142 grp->errorno = errno;
1780 2143
1781 av = newAV (); 2144 av = newAV ();
2145 av_extend (av, items - 1);
1782 2146
1783 for (i = 1; i < items; ++i ) 2147 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 2148 av_push (av, newSVsv (ST (i)));
1785 2149
1786 SvREFCNT_dec (grp->sv1); 2150 SvREFCNT_dec (grp->sv1);
… …
1793 grp->errorno = errorno; 2157 grp->errorno = errorno;
1794 2158
1795void 2159void
1796limit (aio_req grp, int limit) 2160limit (aio_req grp, int limit)
1797 CODE: 2161 CODE:
1798 grp->int2 = limit; 2162 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 2163
1801void 2164void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 2165feed (aio_req grp, SV *callback = &PL_sv_undef)
1803 CODE: 2166 CODE:
1804{ 2167{
1805 SvREFCNT_dec (grp->sv2); 2168 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 2169 grp->sv2 = newSVsv (callback);
2170 grp->feed = aio_grp_feed;
1807 2171
1808 if (grp->int2 <= 0) 2172 if (grp->int2 <= 0)
1809 grp->int2 = 2; 2173 grp->int2 = 2;
1810 2174
1811 aio_grp_feed (grp); 2175 eio_grp_limit (grp, grp->int2);
1812} 2176}
1813 2177

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