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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.82 by root, Fri Oct 27 20:11:58 2006 UTC vs.
Revision 1.217 by root, Fri Jul 27 17:24:06 2012 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
21# include <sys/mman.h>
22#endif
23
34# if __linux 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
42#ifdef _WIN32
43
44 // perl overrides all those nice libc functions
45
46 #undef malloc
47 #undef free
48 #undef open
49 #undef read
50 #undef write
51 #undef send
52 #undef recv
53 #undef stat
54 #undef lstat
55 #undef fstat
56 #undef truncate
57 #undef ftruncate
58 #undef open
59 #undef link
60 #undef close
61 #undef unlink
62 #undef mkdir
63 #undef rmdir
64 #undef rename
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
75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
79#else
80
81 #include <sys/time.h>
35# include <sys/sendfile.h> 82 #include <sys/select.h>
36# elif __freebsd 83 #include <unistd.h>
37# include <sys/socket.h> 84 #include <utime.h>
38# include <sys/uio.h> 85 #include <signal.h>
39# elif __hpux 86
40# include <sys/socket.h> 87 #define EIO_STRUCT_STAT Stat_t
41# elif __solaris /* not yet */ 88
42# include <sys/sendfile.h> 89#endif
90
91/*****************************************************************************/
92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
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
43# else 140# else
44# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 142# endif
46#endif 143#endif
47 144
48/* used for struct dirent, AIX doesn't provide it */ 145/* defines all sorts of constants to 0 unless they are already defined */
49#ifndef NAME_MAX 146#include "def0.h"
50# define NAME_MAX 4096
51#endif
52 147
53#ifndef PTHREAD_STACK_MIN 148#ifndef makedev
54/* care for broken platforms, e.g. windows */ 149# define makedev(maj,min) (((maj) << 8) | (min))
55# define PTHREAD_STACK_MIN 16384
56#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
57 157
58#if __ia64 158#ifndef PAGESIZE
59# define STACKSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 160#endif
61# define STACKSIZE PTHREAD_STACK_MIN 161
162/*****************************************************************************/
163
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 64 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 maybe 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
200 break; /* autosizing successful, we are done */
201
202 fiemap->fm_flags = req->int2;
203 fiemap->fm_extent_count = 0;
204
205 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206 return;
207
208 count = fiemap->fm_mapped_extents;
209
210 free (fiemap);
211 }
212
213 req->result = 0;
214
62#else 215#else
63# define STACKSIZE 16384 216 errno = ENOSYS;
64#endif
65
66/* wether word reads are potentially non-atomic.
67 * this is conservatice, likely most arches this runs
68 * on have atomic word read/writes.
69 */
70#ifndef WORDREAD_UNSAFE
71# if __i386 || __x86_64
72# define WORDREAD_UNSAFE 0
73# else
74# define WORDREAD_UNSAFE 1
75# endif 217#endif
76#endif 218}
77 219
78/* buffer size for various temporary buffers */ 220/*****************************************************************************/
79#define AIO_BUFSIZE 65536
80
81#define dBUF \
82 char *aio_buf; \
83 LOCK (wrklock); \
84 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85 UNLOCK (wrklock); \
86 if (!aio_buf) \
87 return -1;
88 221
89enum { 222enum {
90 REQ_QUIT, 223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
91 REQ_OPEN, REQ_CLOSE,
92 REQ_READ, REQ_WRITE, REQ_READAHEAD,
93 REQ_SENDFILE,
94 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
95 REQ_FSYNC, REQ_FDATASYNC,
96 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
97 REQ_MKNOD, REQ_READDIR,
98 REQ_LINK, REQ_SYMLINK,
99 REQ_GROUP, REQ_NOP,
100 REQ_BUSY,
101}; 224};
102 225
103#define AIO_REQ_KLASS "IO::AIO::REQ"
104#define AIO_GRP_KLASS "IO::AIO::GRP"
105
106typedef struct aio_cb
107{
108 struct aio_cb *volatile next;
109
110 SV *data, *callback;
111 SV *fh, *fh2;
112 void *dataptr, *data2ptr;
113 Stat_t *statdata;
114 off_t offset;
115 size_t length;
116 ssize_t result;
117
118 STRLEN dataoffset;
119 int type;
120 int fd, fd2;
121 int errorno;
122 mode_t mode; /* open */
123
124 unsigned char flags;
125 unsigned char pri;
126
127 SV *self; /* the perl counterpart of this request, if any */
128 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129} aio_cb;
130
131enum {
132 FLAG_CANCELLED = 0x01,
133};
134
135typedef aio_cb *aio_req; 226typedef eio_req *aio_req;
136typedef aio_cb *aio_req_ornot; 227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
137 229
138enum { 230static SV *on_next_submit;
139 PRI_MIN = -4, 231static int next_pri = EIO_PRI_DEFAULT;
140 PRI_MAX = 4, 232static int max_outstanding;
141 233
142 DEFAULT_PRI = 0, 234static s_epipe respipe;
143 PRI_BIAS = -PRI_MIN,
144 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145};
146 235
147static int next_pri = DEFAULT_PRI + PRI_BIAS;
148
149static unsigned int started, wanted;
150
151#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153#else
154# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155#endif
156
157#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159
160/* worker threads management */
161static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
162
163typedef struct worker {
164 /* locked by wrklock */
165 struct worker *prev, *next;
166
167 pthread_t tid;
168
169 /* locked by reslock, reqlock or wrklock */
170 aio_req req; /* currently processed request */
171 void *dbuf;
172 DIR *dirp;
173} worker;
174
175static worker wrk_first = { &wrk_first, &wrk_first, 0 };
176
177static void worker_clear (worker *wrk)
178{
179 if (wrk->dirp)
180 {
181 closedir (wrk->dirp);
182 wrk->dirp = 0;
183 }
184
185 if (wrk->dbuf)
186 {
187 free (wrk->dbuf);
188 wrk->dbuf = 0;
189 }
190}
191
192static void worker_free (worker *wrk)
193{
194 wrk->next->prev = wrk->prev;
195 wrk->prev->next = wrk->next;
196
197 free (wrk);
198}
199
200static volatile unsigned int nreqs, nready, npending;
201static volatile unsigned int max_outstanding = 0xffffffff;
202static int respipe [2];
203
204static pthread_mutex_t reslock = AIO_MUTEX_INIT;
205static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
206static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
207
208#if WORDREAD_UNSAFE
209
210static unsigned int get_nready ()
211{
212 unsigned int retval;
213
214 LOCK (reqlock);
215 retval = nready;
216 UNLOCK (reqlock);
217
218 return retval;
219}
220
221static unsigned int get_npending ()
222{
223 unsigned int retval;
224
225 LOCK (reslock);
226 retval = npending;
227 UNLOCK (reslock);
228
229 return retval;
230}
231
232#else
233
234# define get_nready() nready
235# define get_npending() npending
236
237#endif
238
239/*
240 * a somewhat faster data structure might be nice, but
241 * with 8 priorities this actually needs <20 insns
242 * per shift, the most expensive operation.
243 */
244typedef struct {
245 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
246 int size;
247} reqq;
248
249static reqq req_queue;
250static reqq res_queue;
251
252int reqq_push (reqq *q, aio_req req)
253{
254 int pri = req->pri;
255 req->next = 0;
256
257 if (q->qe[pri])
258 {
259 q->qe[pri]->next = req;
260 q->qe[pri] = req;
261 }
262 else
263 q->qe[pri] = q->qs[pri] = req;
264
265 return q->size++;
266}
267
268aio_req reqq_shift (reqq *q)
269{
270 int pri;
271
272 if (!q->size)
273 return 0;
274
275 --q->size;
276
277 for (pri = NUM_PRI; pri--; )
278 {
279 aio_req req = q->qs[pri];
280
281 if (req)
282 {
283 if (!(q->qs[pri] = req->next))
284 q->qe[pri] = 0;
285
286 return req;
287 }
288 }
289
290 abort ();
291}
292
293static int poll_cb (int max);
294static void req_invoke (aio_req req);
295static void req_free (aio_req req); 236static void req_destroy (aio_req req);
296static void req_cancel (aio_req req); 237static void req_cancel (aio_req req);
297 238
239static void
240want_poll (void)
241{
242 /* write a dummy byte to the pipe so fh becomes ready */
243 s_epipe_signal (&respipe);
244}
245
246static void
247done_poll (void)
248{
249 /* read any signals sent by the worker threads */
250 s_epipe_drain (&respipe);
251}
252
298/* must be called at most once */ 253/* must be called at most once */
299static SV *req_sv (aio_req req, const char *klass) 254static SV *
255req_sv (aio_req req, HV *stash)
300{ 256{
301 if (!req->self) 257 if (!req->self)
302 { 258 {
303 req->self = (SV *)newHV (); 259 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 } 261 }
306 262
307 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308} 264}
309 265
310static aio_req SvAIO_REQ (SV *sv) 266static SV *
267newSVaio_wd (aio_wd wd)
268{
269 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
270}
271
272static aio_req
273SvAIO_REQ (SV *sv)
311{ 274{
312 MAGIC *mg; 275 MAGIC *mg;
313 276
314 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 277 if (!SvROK (sv)
278 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279 || (SvSTASH (SvRV (sv)) != aio_grp_stash
280 && SvSTASH (SvRV (sv)) != aio_req_stash
281 && !sv_derived_from (sv, "IO::AIO::REQ")))
315 croak ("object of class " AIO_REQ_KLASS " expected"); 282 croak ("object of class IO::AIO::REQ expected");
316 283
317 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
318 285
319 return mg ? (aio_req)mg->mg_ptr : 0; 286 return mg ? (aio_req)mg->mg_ptr : 0;
320} 287}
321 288
289static aio_wd
290SvAIO_WD (SV *sv)
291{
292 if (!SvROK (sv)
293 || SvTYPE (SvRV (sv)) != SVt_PVMG
294 || SvSTASH (SvRV (sv)) != aio_wd_stash)
295 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296
297 return (aio_wd)(long)SvIVX (SvRV (sv));
298}
299
300static void
322static void aio_grp_feed (aio_req grp) 301aio_grp_feed (aio_req grp)
323{ 302{
324 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 303 if (grp->sv2 && SvOK (grp->sv2))
325 { 304 {
326 int old_len = grp->length;
327
328 if (grp->fh2 && SvOK (grp->fh2))
329 {
330 dSP; 305 dSP;
331 306
332 ENTER; 307 ENTER;
333 SAVETMPS; 308 SAVETMPS;
334 PUSHMARK (SP); 309 PUSHMARK (SP);
335 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
336 PUTBACK; 311 PUTBACK;
337 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338 SPAGAIN; 313 SPAGAIN;
339 FREETMPS; 314 FREETMPS;
340 LEAVE; 315 LEAVE;
341 }
342
343 /* stop if no progress has been made */
344 if (old_len == grp->length)
345 {
346 SvREFCNT_dec (grp->fh2);
347 grp->fh2 = 0;
348 break;
349 }
350 } 316 }
351} 317}
352 318
353static void aio_grp_dec (aio_req grp) 319static void
320req_submit (eio_req *req)
354{ 321{
355 --grp->length; 322 eio_submit (req);
356 323
357 /* call feeder, if applicable */ 324 if (expect_false (on_next_submit))
358 aio_grp_feed (grp);
359
360 /* finish, if done */
361 if (!grp->length && grp->fd)
362 { 325 {
363 req_invoke (grp); 326 dSP;
364 req_free (grp); 327 SV *cb = sv_2mortal (on_next_submit);
328
329 on_next_submit = 0;
330
331 PUSHMARK (SP);
332 PUTBACK;
333 call_sv (cb, G_DISCARD | G_EVAL);
365 } 334 }
366} 335}
367 336
337static int
368static void req_invoke (aio_req req) 338req_invoke (eio_req *req)
369{ 339{
370 dSP; 340 if (req->flags & FLAG_SV2_RO_OFF)
341 SvREADONLY_off (req->sv2);
371 342
372 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
373 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
374 ENTER; 349 ENTER;
375 SAVETMPS; 350 SAVETMPS;
376 PUSHMARK (SP); 351 PUSHMARK (SP);
377 EXTEND (SP, 1); 352 EXTEND (SP, 1);
378 353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
356 {
357 sv_result = sv_result_cache; sv_result_cache = 0;
358 SvIV_set (sv_result, req->result);
359 SvIOK_only (sv_result);
360 }
361 else
362 {
363 sv_result = newSViv (req->result);
364 SvREADONLY_on (sv_result);
365 }
366
379 switch (req->type) 367 switch (req->type)
380 { 368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
381 case REQ_READDIR: 373 case EIO_READDIR:
382 { 374 {
383 SV *rv = &PL_sv_undef; 375 SV *rv = &PL_sv_undef;
384 376
385 if (req->result >= 0) 377 if (req->result >= 0)
386 { 378 {
387 int i; 379 int i;
388 char *buf = req->data2ptr; 380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
389 AV *av = newAV (); 382 AV *av = newAV ();
390 383
391 av_extend (av, req->result - 1); 384 av_extend (av, req->result - 1);
392 385
393 for (i = 0; i < req->result; ++i) 386 for (i = 0; i < req->result; ++i)
394 { 387 {
395 SV *sv = newSVpv (buf, 0); 388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
396 391
392 if (req->int1 & EIO_READDIR_CUSTOM2)
393 {
394 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
395 AV *avent = newAV ();
396
397 av_extend (avent, 2);
398
399 if (!sv_type [ent->type])
400 {
401 sv_type [ent->type] = newSViv (ent->type);
402 SvREADONLY_on (sv_type [ent->type]);
403 }
404
405 av_store (avent, 0, namesv);
406 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
407 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
408
409 av_store (av, i, newRV_noinc ((SV *)avent));
410 }
411 else
397 av_store (av, i, sv); 412 av_store (av, i, namesv);
413
414 ++ent;
415 }
416 else
417 {
418 SV *name = newSVpv (names, 0);
419 av_store (av, i, name);
398 buf += SvCUR (sv) + 1; 420 names += SvCUR (name) + 1;
421 }
399 } 422 }
400 423
401 rv = sv_2mortal (newRV_noinc ((SV *)av)); 424 rv = sv_2mortal (newRV_noinc ((SV *)av));
402 } 425 }
403 426
404 PUSHs (rv); 427 PUSHs (rv);
428
429 if (req->int1 & EIO_READDIR_CUSTOM1)
430 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
405 } 431 }
406 break; 432 break;
407 433
408 case REQ_OPEN: 434 case EIO_OPEN:
409 { 435 {
410 /* convert fd to fh */ 436 /* convert fd to fh */
411 SV *fh; 437 SV *fh = &PL_sv_undef;
412 438
413 PUSHs (sv_2mortal (newSViv (req->result))); 439 if (req->result >= 0)
414 PUTBACK; 440 {
415 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 441 GV *gv = (GV *)sv_newmortal ();
416 SPAGAIN; 442 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
443 char sym [64];
444 int symlen;
445
446 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
447 gv_init (gv, aio_stash, sym, symlen, 0);
417 448
418 fh = SvREFCNT_inc (POPs); 449 symlen = snprintf (
450 sym,
451 sizeof (sym),
452 "%s&=%d",
453 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454 (int)req->result
455 );
419 456
457 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458 fh = (SV *)gv;
459 }
460
420 PUSHMARK (SP); 461 PUSHs (fh);
421 XPUSHs (sv_2mortal (fh));
422 } 462 }
423 break; 463 break;
424 464
465 case EIO_STATVFS:
466 case EIO_FSTATVFS:
467 {
468 SV *rv = &PL_sv_undef;
469
470#ifndef _WIN32
471 if (req->result >= 0)
472 {
473 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474 HV *hv = newHV ();
475
476 rv = sv_2mortal (newRV_noinc ((SV *)hv));
477
478 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
479 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
480 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
481 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
482 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
483 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
484 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
485 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
486 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
487 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
488 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489 }
490#endif
491
492 PUSHs (rv);
493 }
494
495 break;
496
425 case REQ_GROUP: 497 case EIO_GROUP:
426 req->fd = 2; /* mark group as finished */ 498 req->int1 = 2; /* mark group as finished */
427 499
428 if (req->data) 500 if (req->sv1)
429 { 501 {
430 int i; 502 int i;
431 AV *av = (AV *)req->data; 503 AV *av = (AV *)req->sv1;
432 504
433 EXTEND (SP, AvFILL (av) + 1); 505 EXTEND (SP, AvFILL (av) + 1);
434 for (i = 0; i <= AvFILL (av); ++i) 506 for (i = 0; i <= AvFILL (av); ++i)
435 PUSHs (*av_fetch (av, i, 0)); 507 PUSHs (*av_fetch (av, i, 0));
436 } 508 }
437 break; 509 break;
438 510
439 case REQ_NOP: 511 case EIO_NOP:
440 case REQ_BUSY: 512 case EIO_BUSY:
441 break; 513 break;
442 514
515 case EIO_READLINK:
516 case EIO_REALPATH:
517 if (req->result > 0)
518 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
519 break;
520
521 case EIO_STAT:
522 case EIO_LSTAT:
523 case EIO_FSTAT:
524 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
525
526 if (!(PL_laststatval = req->result))
527 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
528 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
529
530 PUSHs (sv_result);
531 break;
532
533 case EIO_SEEK:
534 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
535 break;
536
537 case EIO_READ:
538 {
539 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
540 *SvEND (req->sv2) = 0;
541 SvPOK_only (req->sv2);
542 SvSETMAGIC (req->sv2);
543 PUSHs (sv_result);
544 }
545 break;
546
547 case EIO_CUSTOM:
548 if (req->feed == fiemap)
549 {
550#if HAVE_FIEMAP
551 if (!req->result)
552 {
553 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
554
555 if (fiemap->fm_extent_count)
556 {
557 AV *av = newAV ();
558 int i;
559
560 while (fiemap->fm_mapped_extents)
561 {
562 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
563 AV *ext_av = newAV ();
564
565 av_store (ext_av, 3, newSVuv (extent->fe_flags));
566 av_store (ext_av, 2, newSVval64 (extent->fe_length));
567 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
568 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
569
570 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
571 }
572
573 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
574 }
575 else
576 {
577 SvIV_set (sv_result, fiemap->fm_mapped_extents);
578 PUSHs (sv_result);
579 }
580 }
581#endif
582 }
583 else
584 PUSHs (sv_result);
585 break;
586
587 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
588 if (req->result > 0)
589 SvIV_set (sv_result, 0);
590 /* FALLTHROUGH */
591
443 default: 592 default:
444 PUSHs (sv_2mortal (newSViv (req->result))); 593 PUSHs (sv_result);
445 break; 594 break;
446 } 595 }
447 596
448 errno = req->errorno; 597 errno = req->errorno;
449 598
450 PUTBACK; 599 PUTBACK;
451 call_sv (req->callback, G_VOID | G_EVAL); 600 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452 SPAGAIN; 601 SPAGAIN;
602
603 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
604 SvREFCNT_dec (sv_result);
605 else
606 sv_result_cache = sv_result;
453 607
454 FREETMPS; 608 FREETMPS;
455 LEAVE; 609 LEAVE;
610
611 PUTBACK;
456 } 612 }
457 613
458 if (req->grp) 614 return !!SvTRUE (ERRSV);
459 {
460 aio_req grp = req->grp;
461
462 /* unlink request */
463 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
464 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
465
466 if (grp->grp_first == req)
467 grp->grp_first = req->grp_next;
468
469 aio_grp_dec (grp);
470 }
471
472 if (SvTRUE (ERRSV))
473 {
474 req_free (req);
475 croak (0);
476 }
477} 615}
478 616
479static void req_free (aio_req req) 617static void
618req_destroy (aio_req req)
480{ 619{
481 if (req->self) 620 if (req->self)
482 { 621 {
483 sv_unmagic (req->self, PERL_MAGIC_ext); 622 sv_unmagic (req->self, PERL_MAGIC_ext);
484 SvREFCNT_dec (req->self); 623 SvREFCNT_dec (req->self);
485 } 624 }
486 625
487 SvREFCNT_dec (req->data);
488 SvREFCNT_dec (req->fh); 626 SvREFCNT_dec (req->sv1);
489 SvREFCNT_dec (req->fh2); 627 SvREFCNT_dec (req->sv2);
628 SvREFCNT_dec (req->sv3);
629 SvREFCNT_dec (req->sv4);
490 SvREFCNT_dec (req->callback); 630 SvREFCNT_dec (req->callback);
491 Safefree (req->statdata);
492 631
493 if (req->type == REQ_READDIR)
494 free (req->data2ptr);
495
496 Safefree (req); 632 free (req);
497} 633}
498 634
635static void
499static void req_cancel_subs (aio_req grp) 636req_cancel_subs (aio_req grp)
500{ 637{
501 aio_req sub;
502
503 if (grp->type != REQ_GROUP) 638 if (grp->type != EIO_GROUP)
504 return; 639 return;
505 640
506 SvREFCNT_dec (grp->fh2); 641 SvREFCNT_dec (grp->sv2);
507 grp->fh2 = 0; 642 grp->sv2 = 0;
508 643
509 for (sub = grp->grp_first; sub; sub = sub->grp_next) 644 eio_grp_cancel (grp);
510 req_cancel (sub);
511} 645}
512 646
513static void req_cancel (aio_req req) 647static void ecb_cold
648create_respipe (void)
514{ 649{
515 req->flags |= FLAG_CANCELLED; 650 if (s_epipe_renew (&respipe))
516 651 croak ("IO::AIO: unable to initialize result pipe");
517 req_cancel_subs (req);
518} 652}
519 653
520static void *aio_proc(void *arg); 654static void
521 655poll_wait (void)
522static void start_thread (void)
523{ 656{
524 sigset_t fullsigset, oldsigset;
525 pthread_attr_t attr;
526
527 worker *wrk = calloc (1, sizeof (worker));
528
529 if (!wrk)
530 croak ("unable to allocate worker thread data");
531
532 pthread_attr_init (&attr);
533 pthread_attr_setstacksize (&attr, STACKSIZE);
534 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535#ifdef PTHREAD_SCOPE_PROCESS
536 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537#endif
538
539 sigfillset (&fullsigset);
540
541 LOCK (wrklock);
542 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543
544 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
545 {
546 wrk->prev = &wrk_first;
547 wrk->next = wrk_first.next;
548 wrk_first.next->prev = wrk;
549 wrk_first.next = wrk;
550 ++started;
551 }
552 else
553 free (wrk);
554
555 sigprocmask (SIG_SETMASK, &oldsigset, 0);
556 UNLOCK (wrklock);
557}
558
559static void maybe_start_thread ()
560{
561#if 0
562 static struct timeval last;
563 struct timeval diff, now;
564#endif
565
566 if (started >= wanted)
567 return;
568
569 if (nready <= nreqs - get_nready () - get_npending ())
570 return;
571
572#if 0
573 gettimeofday (&now, 0);
574
575 diff.tv_sec = now.tv_sec - last.tv_sec;
576 diff.tv_usec = now.tv_usec - last.tv_usec;
577
578 if (diff.tv_usec < 0)
579 {
580 --diff.tv_sec;
581 diff.tv_usec += 1000000;
582 }
583
584 if (!diff.tv_sec && diff.tv_usec < 10000)
585 return;
586
587 last = now;
588#endif
589
590 start_thread ();
591}
592
593static void req_send (aio_req req)
594{
595 ++nreqs;
596
597 LOCK (reqlock);
598 ++nready;
599 reqq_push (&req_queue, req);
600 pthread_cond_signal (&reqwait);
601 UNLOCK (reqlock);
602
603 maybe_start_thread ();
604}
605
606static void end_thread (void)
607{
608 aio_req req;
609
610 Newz (0, req, 1, aio_cb);
611
612 req->type = REQ_QUIT;
613 req->pri = PRI_MAX + PRI_BIAS;
614
615 req_send (req);
616
617 LOCK (wrklock);
618 --started;
619 UNLOCK (wrklock);
620}
621
622static void min_parallel (int nthreads)
623{
624 if (wanted < nthreads)
625 wanted = nthreads;
626}
627
628static void max_parallel (int nthreads)
629{
630 if (wanted > nthreads)
631 wanted = nthreads;
632
633 while (started > wanted)
634 end_thread ();
635}
636
637static void poll_wait ()
638{
639 fd_set rfd;
640
641 while (nreqs) 657 while (eio_nreqs ())
642 { 658 {
643 int size; 659 int size;
644 if (WORDREAD_UNSAFE) LOCK (reslock); 660
661 X_LOCK (reslock);
645 size = res_queue.size; 662 size = res_queue.size;
646 if (WORDREAD_UNSAFE) UNLOCK (reslock); 663 X_UNLOCK (reslock);
647 664
648 if (size) 665 if (size)
649 return; 666 return;
650 667
651 maybe_start_thread (); 668 etp_maybe_start_thread ();
652 669
653 FD_ZERO(&rfd); 670 s_epipe_wait (&respipe);
654 FD_SET(respipe [0], &rfd);
655
656 select (respipe [0] + 1, &rfd, 0, 0, 0);
657 } 671 }
658} 672}
659 673
660static int poll_cb (int max) 674static int
675poll_cb (void)
661{ 676{
662 dSP;
663 int count = 0;
664 int do_croak = 0;
665 aio_req req;
666
667 for (;;) 677 for (;;)
668 { 678 {
669 while (max <= 0 || count < max) 679 int res = eio_poll ();
680
681 if (res > 0)
682 croak (0);
683
684 if (!max_outstanding || max_outstanding > eio_nreqs ())
685 return res;
686
687 poll_wait ();
688 }
689}
690
691static void ecb_cold
692reinit (void)
693{
694 create_respipe ();
695
696 if (eio_init (want_poll, done_poll) < 0)
697 croak ("IO::AIO: unable to initialise eio library");
698}
699
700/*****************************************************************************/
701
702#if !_POSIX_MAPPED_FILES
703# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
704# define munmap(addr,length) EIO_ENOSYS ()
705#endif
706
707#if !_POSIX_MEMORY_PROTECTION
708# define mprotect(addr,len,prot) EIO_ENOSYS ()
709# define PROT_NONE 0
710# define PROT_WRITE 0
711# define MAP_PRIVATE 0
712# define MAP_SHARED 0
713# define MAP_FIXED 0
714#endif
715
716#define MMAP_MAGIC PERL_MAGIC_ext
717
718static int ecb_cold
719mmap_free (pTHX_ SV *sv, MAGIC *mg)
720{
721 int old_errno = errno;
722 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723 errno = old_errno;
724
725 mg->mg_obj = 0; /* just in case */
726
727 SvREADONLY_off (sv);
728
729 if (SvPVX (sv) != mg->mg_ptr)
730 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732 SvCUR_set (sv, 0);
733 SvPVX (sv) = 0;
734 SvOK_off (sv);
735
736 return 0;
737}
738
739static MGVTBL mmap_vtbl = {
740 0, 0, 0, 0, mmap_free
741};
742
743/*****************************************************************************/
744
745static SV *
746get_cb (SV *cb_sv)
747{
748 SvGETMAGIC (cb_sv);
749 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
750}
751
752static aio_req ecb_noinline
753dreq (SV *callback)
754{
755 SV *cb_cv;
756 aio_req req;
757 int req_pri = next_pri;
758 next_pri = EIO_PRI_DEFAULT;
759
760 cb_cv = get_cb (callback);
761
762 req = calloc (sizeof (*req), 1);
763 if (!req)
764 croak ("out of memory during eio_req allocation");
765
766 req->callback = SvREFCNT_inc (cb_cv);
767 req->pri = req_pri;
768
769 return req;
770}
771
772#define dREQ \
773 aio_req req = dreq (callback); \
774
775#define REQ_SEND \
776 PUTBACK; \
777 req_submit (req); \
778 SPAGAIN; \
779 \
780 if (GIMME_V != G_VOID) \
781 XPUSHs (req_sv (req, aio_req_stash));
782
783ecb_inline void
784req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
785{
786 if (expect_false (SvROK (path)))
787 {
788 SV *rv = SvRV (path);
789 SV *wdob;
790
791 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
670 { 792 {
671 maybe_start_thread (); 793 path = AvARRAY (rv)[1];
794 wdob = AvARRAY (rv)[0];
672 795
673 LOCK (reslock); 796 if (SvOK (wdob))
674 req = reqq_shift (&res_queue);
675
676 if (req)
677 { 797 {
678 --npending; 798 *wd = SvAIO_WD (wdob);
679 799 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
680 if (!res_queue.size)
681 {
682 /* read any signals sent by the worker threads */
683 char buf [32];
684 while (read (respipe [0], buf, 32) == 32)
685 ;
686 }
687 }
688
689 UNLOCK (reslock);
690
691 if (!req)
692 break;
693
694 --nreqs;
695
696 if (req->type == REQ_GROUP && req->length)
697 {
698 req->fd = 1; /* mark request as delayed */
699 continue;
700 } 800 }
701 else 801 else
702 { 802 *wd = EIO_INVALID_WD;
703 if (req->type == REQ_READ)
704 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707 SvREADONLY_off (req->data);
708
709 if (req->statdata)
710 {
711 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
712 PL_laststatval = req->result;
713 PL_statcache = *(req->statdata);
714 }
715
716 req_invoke (req);
717
718 count++;
719 }
720
721 req_free (req);
722 } 803 }
804 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
805 {
806 *wd = (aio_wd)(long)SvIVX (rv);
807 *wdsv = SvREFCNT_inc_NN (rv);
808 *ptr = ".";
809 return; /* path set to "." */
810 }
811 else
812 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
813 }
723 814
724 if (nreqs <= max_outstanding) 815 *pathsv = newSVsv (path);
816 *ptr = SvPVbyte_nolen (*pathsv);
817}
818
819static void ecb_noinline
820req_set_path1 (aio_req req, SV *path)
821{
822 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
823}
824
825static void ecb_noinline
826req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
827{
828 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
829
830 switch (SvTYPE (rv))
831 {
832 case SVt_PVIO:
833 case SVt_PVLV:
834 case SVt_PVGV:
835 req->type = type_fh;
836 req->sv1 = newSVsv (fh_or_path);
837 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725 break; 838 break;
726 839
727 poll_wait (); 840 default:
728 841 req->type = type_path;
729 max = 0; 842 req_set_path1 (req, fh_or_path);
843 break;
730 } 844 }
731
732 return count;
733} 845}
734 846
735static void create_pipe () 847XS(boot_IO__AIO) ecb_cold;
736{
737 if (pipe (respipe))
738 croak ("unable to initialize result pipe");
739 848
740 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741 croak ("cannot set result pipe to nonblocking mode");
742
743 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744 croak ("cannot set result pipe to nonblocking mode");
745}
746
747/*****************************************************************************/
748/* work around various missing functions */
749
750#if !HAVE_PREADWRITE
751# define pread aio_pread
752# define pwrite aio_pwrite
753
754/*
755 * make our pread/pwrite safe against themselves, but not against
756 * normal read/write by using a mutex. slows down execution a lot,
757 * but that's your problem, not mine.
758 */
759static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
760
761static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
762{
763 ssize_t res;
764 off_t ooffset;
765
766 LOCK (preadwritelock);
767 ooffset = lseek (fd, 0, SEEK_CUR);
768 lseek (fd, offset, SEEK_SET);
769 res = read (fd, buf, count);
770 lseek (fd, ooffset, SEEK_SET);
771 UNLOCK (preadwritelock);
772
773 return res;
774}
775
776static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
777{
778 ssize_t res;
779 off_t ooffset;
780
781 LOCK (preadwritelock);
782 ooffset = lseek (fd, 0, SEEK_CUR);
783 lseek (fd, offset, SEEK_SET);
784 res = write (fd, buf, count);
785 lseek (fd, offset, SEEK_SET);
786 UNLOCK (preadwritelock);
787
788 return res;
789}
790#endif
791
792#if !HAVE_FDATASYNC
793# define fdatasync fsync
794#endif
795
796#if !HAVE_READAHEAD
797# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798
799static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
800{
801 dBUF;
802
803 while (count > 0)
804 {
805 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
806
807 pread (fd, aio_buf, len, offset);
808 offset += len;
809 count -= len;
810 }
811
812 errno = 0;
813}
814
815#endif
816
817#if !HAVE_READDIR_R
818# define readdir_r aio_readdir_r
819
820static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
821
822static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
823{
824 struct dirent *e;
825 int errorno;
826
827 LOCK (readdirlock);
828
829 e = readdir (dirp);
830 errorno = errno;
831
832 if (e)
833 {
834 *res = ent;
835 strcpy (ent->d_name, e->d_name);
836 }
837 else
838 *res = 0;
839
840 UNLOCK (readdirlock);
841
842 errno = errorno;
843 return e ? 0 : -1;
844}
845#endif
846
847/* sendfile always needs emulation */
848static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
849{
850 ssize_t res;
851
852 if (!count)
853 return 0;
854
855#if HAVE_SENDFILE
856# if __linux
857 res = sendfile (ofd, ifd, &offset, count);
858
859# elif __freebsd
860 /*
861 * Of course, the freebsd sendfile is a dire hack with no thoughts
862 * wasted on making it similar to other I/O functions.
863 */
864 {
865 off_t sbytes;
866 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
867
868 if (res < 0 && sbytes)
869 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
870 res = sbytes;
871 }
872
873# elif __hpux
874 res = sendfile (ofd, ifd, offset, count, 0, 0);
875
876# elif __solaris
877 {
878 struct sendfilevec vec;
879 size_t sbytes;
880
881 vec.sfv_fd = ifd;
882 vec.sfv_flag = 0;
883 vec.sfv_off = offset;
884 vec.sfv_len = count;
885
886 res = sendfilev (ofd, &vec, 1, &sbytes);
887
888 if (res < 0 && sbytes)
889 res = sbytes;
890 }
891
892# endif
893#else
894 res = -1;
895 errno = ENOSYS;
896#endif
897
898 if (res < 0
899 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
900#if __solaris
901 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
902#endif
903 )
904 )
905 {
906 /* emulate sendfile. this is a major pain in the ass */
907 dBUF;
908
909 res = 0;
910
911 while (count)
912 {
913 ssize_t cnt;
914
915 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
916
917 if (cnt <= 0)
918 {
919 if (cnt && !res) res = -1;
920 break;
921 }
922
923 cnt = write (ofd, aio_buf, cnt);
924
925 if (cnt <= 0)
926 {
927 if (cnt && !res) res = -1;
928 break;
929 }
930
931 offset += cnt;
932 res += cnt;
933 count -= cnt;
934 }
935 }
936
937 return res;
938}
939
940/* read a full directory */
941static void scandir_ (aio_req req, worker *self)
942{
943 DIR *dirp;
944 union
945 {
946 struct dirent d;
947 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
948 } *u;
949 struct dirent *entp;
950 char *name, *names;
951 int memlen = 4096;
952 int memofs = 0;
953 int res = 0;
954 int errorno;
955
956 LOCK (wrklock);
957 self->dirp = dirp = opendir (req->dataptr);
958 self->dbuf = u = malloc (sizeof (*u));
959 req->data2ptr = names = malloc (memlen);
960 UNLOCK (wrklock);
961
962 if (dirp && u && names)
963 for (;;)
964 {
965 errno = 0;
966 readdir_r (dirp, &u->d, &entp);
967
968 if (!entp)
969 break;
970
971 name = entp->d_name;
972
973 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
974 {
975 int len = strlen (name) + 1;
976
977 res++;
978
979 while (memofs + len > memlen)
980 {
981 memlen *= 2;
982 LOCK (wrklock);
983 req->data2ptr = names = realloc (names, memlen);
984 UNLOCK (wrklock);
985
986 if (!names)
987 break;
988 }
989
990 memcpy (names + memofs, name, len);
991 memofs += len;
992 }
993 }
994
995 if (errno)
996 res = -1;
997
998 req->result = res;
999}
1000
1001/*****************************************************************************/
1002
1003static void *aio_proc (void *thr_arg)
1004{
1005 aio_req req;
1006 worker *self = (worker *)thr_arg;
1007
1008 for (;;)
1009 {
1010 LOCK (reqlock);
1011
1012 for (;;)
1013 {
1014 self->req = req = reqq_shift (&req_queue);
1015
1016 if (req)
1017 break;
1018
1019 pthread_cond_wait (&reqwait, &reqlock);
1020 }
1021
1022 --nready;
1023
1024 UNLOCK (reqlock);
1025
1026 errno = 0; /* strictly unnecessary */
1027
1028 if (!(req->flags & FLAG_CANCELLED))
1029 switch (req->type)
1030 {
1031 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1032 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1033
1034 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1035 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1036
1037 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1038 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1039 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1040
1041 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1042 case REQ_CLOSE: req->result = close (req->fd); break;
1043 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1044 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1045 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1046 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1047 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1048 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1049
1050 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1051 case REQ_FSYNC: req->result = fsync (req->fd); break;
1052 case REQ_READDIR: scandir_ (req, self); break;
1053
1054 case REQ_BUSY:
1055 {
1056 struct timeval tv;
1057
1058 tv.tv_sec = req->fd;
1059 tv.tv_usec = req->fd2;
1060
1061 req->result = select (0, 0, 0, 0, &tv);
1062 }
1063
1064 case REQ_GROUP:
1065 case REQ_NOP:
1066 break;
1067
1068 case REQ_QUIT:
1069 LOCK (wrklock);
1070 worker_free (self);
1071 --started;
1072 UNLOCK (wrklock);
1073 return 0;
1074
1075 default:
1076 req->result = ENOSYS;
1077 break;
1078 }
1079
1080 req->errorno = errno;
1081
1082 LOCK (reslock);
1083
1084 ++npending;
1085
1086 if (!reqq_push (&res_queue, req))
1087 /* write a dummy byte to the pipe so fh becomes ready */
1088 write (respipe [1], &respipe, 1);
1089
1090 self->req = 0;
1091 worker_clear (self);
1092
1093 UNLOCK (reslock);
1094 }
1095}
1096
1097/*****************************************************************************/
1098
1099static void atfork_prepare (void)
1100{
1101 LOCK (wrklock);
1102 LOCK (reqlock);
1103 LOCK (reslock);
1104#if !HAVE_PREADWRITE
1105 LOCK (preadwritelock);
1106#endif
1107#if !HAVE_READDIR_R
1108 LOCK (readdirlock);
1109#endif
1110}
1111
1112static void atfork_parent (void)
1113{
1114#if !HAVE_READDIR_R
1115 UNLOCK (readdirlock);
1116#endif
1117#if !HAVE_PREADWRITE
1118 UNLOCK (preadwritelock);
1119#endif
1120 UNLOCK (reslock);
1121 UNLOCK (reqlock);
1122 UNLOCK (wrklock);
1123}
1124
1125static void atfork_child (void)
1126{
1127 aio_req prv;
1128
1129 while (prv = reqq_shift (&req_queue))
1130 req_free (prv);
1131
1132 while (prv = reqq_shift (&res_queue))
1133 req_free (prv);
1134
1135 while (wrk_first.next != &wrk_first)
1136 {
1137 worker *wrk = wrk_first.next;
1138
1139 if (wrk->req)
1140 req_free (wrk->req);
1141
1142 worker_clear (wrk);
1143 worker_free (wrk);
1144 }
1145
1146 started = 0;
1147 nreqs = 0;
1148
1149 close (respipe [0]);
1150 close (respipe [1]);
1151 create_pipe ();
1152
1153 atfork_parent ();
1154}
1155
1156#define dREQ \
1157 aio_req req; \
1158 int req_pri = next_pri; \
1159 next_pri = DEFAULT_PRI + PRI_BIAS; \
1160 \
1161 if (SvOK (callback) && !SvROK (callback)) \
1162 croak ("callback must be undef or of reference type"); \
1163 \
1164 Newz (0, req, 1, aio_cb); \
1165 if (!req) \
1166 croak ("out of memory during aio_req allocation"); \
1167 \
1168 req->callback = newSVsv (callback); \
1169 req->pri = req_pri
1170
1171#define REQ_SEND \
1172 req_send (req); \
1173 \
1174 if (GIMME_V != G_VOID) \
1175 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1176
1177MODULE = IO::AIO PACKAGE = IO::AIO 849MODULE = IO::AIO PACKAGE = IO::AIO
1178 850
1179PROTOTYPES: ENABLE 851PROTOTYPES: ENABLE
1180 852
1181BOOT: 853BOOT:
1182{ 854{
855 static const struct {
856 const char *name;
857 IV iv;
858 } *civ, const_iv[] = {
859# define const_niv(name, value) { # name, (IV) value },
860# define const_iv(name) { # name, (IV) name },
861# define const_eio(name) { # name, (IV) EIO_ ## name },
862
863 /* you have to re-run ./gendef0 after adding/Removing any constants here */
864
865 const_iv (ENOSYS)
866 const_iv (EXDEV)
867 const_iv (EBADR)
868
869 const_iv (O_RDONLY)
870 const_iv (O_WRONLY)
871 const_iv (O_RDWR)
872 const_iv (O_CREAT)
873 const_iv (O_TRUNC)
874 const_iv (O_EXCL)
875 const_iv (O_APPEND)
876
877 const_iv (O_ASYNC)
878 const_iv (O_DIRECT)
879 const_iv (O_NOATIME)
880
881 const_iv (O_CLOEXEC)
882 const_iv (O_NOCTTY)
883 const_iv (O_NOFOLLOW)
884 const_iv (O_NONBLOCK)
885 const_iv (O_EXEC)
886 const_iv (O_SEARCH)
887 const_iv (O_DIRECTORY)
888 const_iv (O_DSYNC)
889 const_iv (O_RSYNC)
890 const_iv (O_SYNC)
891 const_iv (O_TTY_INIT)
892
893 const_iv (S_IFIFO)
894 const_iv (S_IFCHR)
895 const_iv (S_IFBLK)
896 const_iv (S_IFLNK)
897 const_iv (S_IFREG)
898 const_iv (S_IFDIR)
899 const_iv (S_IFWHT)
900 const_iv (S_IFSOCK)
901 const_iv (S_IFMT)
902
903 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
904 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
909
910 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
911 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
912 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
915
916 const_iv (ST_RDONLY)
917 const_iv (ST_NOSUID)
918 const_iv (ST_NODEV)
919 const_iv (ST_NOEXEC)
920 const_iv (ST_SYNCHRONOUS)
921 const_iv (ST_MANDLOCK)
922 const_iv (ST_WRITE)
923 const_iv (ST_APPEND)
924 const_iv (ST_IMMUTABLE)
925 const_iv (ST_NOATIME)
926 const_iv (ST_NODIRATIME)
927 const_iv (ST_RELATIME)
928
929 const_iv (PROT_NONE)
930 const_iv (PROT_EXEC)
931 const_iv (PROT_READ)
932 const_iv (PROT_WRITE)
933
934 /*const_iv (MAP_FIXED)*/
935 const_iv (MAP_PRIVATE)
936 const_iv (MAP_SHARED)
937 const_iv (MAP_ANONYMOUS)
938
939 /* linuxish */
940 const_iv (MAP_HUGETLB)
941 const_iv (MAP_LOCKED)
942 const_iv (MAP_NORESERVE)
943 const_iv (MAP_POPULATE)
944 const_iv (MAP_NONBLOCK)
945
946 const_iv (FIEMAP_FLAG_SYNC)
947 const_iv (FIEMAP_FLAG_XATTR)
948 const_iv (FIEMAP_FLAGS_COMPAT)
949 const_iv (FIEMAP_EXTENT_LAST)
950 const_iv (FIEMAP_EXTENT_UNKNOWN)
951 const_iv (FIEMAP_EXTENT_DELALLOC)
952 const_iv (FIEMAP_EXTENT_ENCODED)
953 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
954 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
955 const_iv (FIEMAP_EXTENT_DATA_INLINE)
956 const_iv (FIEMAP_EXTENT_DATA_TAIL)
957 const_iv (FIEMAP_EXTENT_UNWRITTEN)
958 const_iv (FIEMAP_EXTENT_MERGED)
959 const_iv (FIEMAP_EXTENT_SHARED)
960
961 const_iv (SPLICE_F_MOVE)
962 const_iv (SPLICE_F_NONBLOCK)
963 const_iv (SPLICE_F_MORE)
964 const_iv (SPLICE_F_GIFT)
965
966 const_iv (SEEK_DATA)
967 const_iv (SEEK_HOLE)
968
969 /* libeio constants */
970 const_eio (SEEK_SET)
971 const_eio (SEEK_CUR)
972 const_eio (SEEK_END)
973
974 const_eio (MCL_FUTURE)
975 const_eio (MCL_CURRENT)
976
977 const_eio (MS_ASYNC)
978 const_eio (MS_INVALIDATE)
979 const_eio (MS_SYNC)
980
981 const_eio (MT_MODIFY)
982
983 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
984 const_eio (SYNC_FILE_RANGE_WRITE)
985 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
986
987 const_eio (FALLOC_FL_KEEP_SIZE)
988 const_eio (FALLOC_FL_PUNCH_HOLE)
989
990 const_eio (READDIR_DENTS)
991 const_eio (READDIR_DIRS_FIRST)
992 const_eio (READDIR_STAT_ORDER)
993 const_eio (READDIR_FOUND_UNKNOWN)
994
995 const_eio (DT_UNKNOWN)
996 const_eio (DT_FIFO)
997 const_eio (DT_CHR)
998 const_eio (DT_DIR)
999 const_eio (DT_BLK)
1000 const_eio (DT_REG)
1001 const_eio (DT_LNK)
1002 const_eio (DT_SOCK)
1003 const_eio (DT_WHT)
1004 };
1005
1183 HV *stash = gv_stashpv ("IO::AIO", 1); 1006 aio_stash = gv_stashpv ("IO::AIO" , 1);
1007 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1008 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1009 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1184 1010
1185 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1011 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1186 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1012 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1187 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1188 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1189 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1190 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1191 1013
1192 create_pipe (); 1014 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1193 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1194 1015
1195 start_thread (); 1016 reinit ();
1196} 1017}
1197 1018
1198void 1019void
1199min_parallel (int nthreads) 1020reinit ()
1200 PROTOTYPE: $ 1021 PROTOTYPE:
1201 1022
1202void 1023void
1203max_parallel (int nthreads) 1024max_poll_reqs (unsigned int nreqs)
1204 PROTOTYPE: $
1205
1206int
1207max_outstanding (int maxreqs)
1208 PROTOTYPE: $ 1025 PROTOTYPE: $
1209 CODE: 1026 CODE:
1210 RETVAL = max_outstanding; 1027 eio_set_max_poll_reqs (nreqs);
1028
1029void
1030max_poll_time (double nseconds)
1031 PROTOTYPE: $
1032 CODE:
1033 eio_set_max_poll_time (nseconds);
1034
1035void
1036min_parallel (unsigned int nthreads)
1037 PROTOTYPE: $
1038 CODE:
1039 eio_set_min_parallel (nthreads);
1040
1041void
1042max_parallel (unsigned int nthreads)
1043 PROTOTYPE: $
1044 CODE:
1045 eio_set_max_parallel (nthreads);
1046
1047void
1048max_idle (unsigned int nthreads)
1049 PROTOTYPE: $
1050 CODE:
1051 eio_set_max_idle (nthreads);
1052
1053void
1054idle_timeout (unsigned int seconds)
1055 PROTOTYPE: $
1056 CODE:
1057 eio_set_idle_timeout (seconds);
1058
1059void
1060max_outstanding (unsigned int maxreqs)
1061 PROTOTYPE: $
1062 CODE:
1211 max_outstanding = maxreqs; 1063 max_outstanding = maxreqs;
1212 OUTPUT:
1213 RETVAL
1214 1064
1215void 1065void
1216aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1066aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1217 SV * pathname
1218 int flags
1219 int mode
1220 SV * callback
1221 PROTOTYPE: $$$;$
1222 PPCODE: 1067 PPCODE:
1223{ 1068{
1224 dREQ; 1069 dREQ;
1225 1070
1226 req->type = REQ_OPEN; 1071 req->type = EIO_WD_OPEN;
1227 req->data = newSVsv (pathname); 1072 req_set_path1 (req, pathname);
1228 req->dataptr = SvPVbyte_nolen (req->data);
1229 req->fd = flags;
1230 req->mode = mode;
1231 1073
1232 REQ_SEND; 1074 REQ_SEND;
1233} 1075}
1234 1076
1235void 1077void
1078aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1079 PPCODE:
1080{
1081 dREQ;
1082
1083 req->type = EIO_OPEN;
1084 req_set_path1 (req, pathname);
1085 req->int1 = flags;
1086 req->int2 = mode;
1087
1088 REQ_SEND;
1089}
1090
1091void
1236aio_close (fh,callback=&PL_sv_undef) 1092aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1237 SV * fh
1238 SV * callback
1239 PROTOTYPE: $;$
1240 ALIAS: 1093 ALIAS:
1241 aio_close = REQ_CLOSE
1242 aio_fsync = REQ_FSYNC 1094 aio_fsync = EIO_FSYNC
1243 aio_fdatasync = REQ_FDATASYNC 1095 aio_fdatasync = EIO_FDATASYNC
1096 aio_syncfs = EIO_SYNCFS
1244 PPCODE: 1097 PPCODE:
1245{ 1098{
1099 int fd = s_fileno_croak (fh, 0);
1246 dREQ; 1100 dREQ;
1247 1101
1248 req->type = ix; 1102 req->type = ix;
1249 req->fh = newSVsv (fh); 1103 req->sv1 = newSVsv (fh);
1250 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1104 req->int1 = fd;
1251 1105
1252 REQ_SEND (req); 1106 REQ_SEND;
1253} 1107}
1254 1108
1255void 1109void
1110aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1111 PPCODE:
1112{
1113 int fd = s_fileno_croak (fh, 0);
1114 dREQ;
1115
1116 req->type = EIO_SYNC_FILE_RANGE;
1117 req->sv1 = newSVsv (fh);
1118 req->int1 = fd;
1119 req->offs = offset;
1120 req->size = nbytes;
1121 req->int2 = flags;
1122
1123 REQ_SEND;
1124}
1125
1126void
1127aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1128 PPCODE:
1129{
1130 int fd = s_fileno_croak (fh, 0);
1131 dREQ;
1132
1133 req->type = EIO_FALLOCATE;
1134 req->sv1 = newSVsv (fh);
1135 req->int1 = fd;
1136 req->int2 = mode;
1137 req->offs = offset;
1138 req->size = len;
1139
1140 REQ_SEND;
1141}
1142
1143void
1144aio_close (SV *fh, SV *callback=&PL_sv_undef)
1145 PPCODE:
1146{
1147 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1148 int fd = s_fileno_croak (fh, 0);
1149 dREQ;
1150
1151 if (expect_false (close_fd < 0))
1152 {
1153 int pipefd [2];
1154
1155 if (
1156#ifdef _WIN32
1157 _pipe (pipefd, 1, _O_BINARY) < 0
1158#else
1159 pipe (pipefd) < 0
1160 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1161#endif
1162 || close (pipefd [1]) < 0
1163 )
1164 abort (); /*D*/
1165
1166 close_fd = pipefd [0];
1167 }
1168
1169 req->type = EIO_DUP2;
1170 req->int1 = close_fd;
1171 req->sv2 = newSVsv (fh);
1172 req->int2 = fd;
1173
1174 REQ_SEND;
1175}
1176
1177void
1178aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1179 PPCODE:
1180{
1181 int fd = s_fileno_croak (fh, 0);
1182 dREQ;
1183
1184 req->type = EIO_SEEK;
1185 req->sv1 = newSVsv (fh);
1186 req->int1 = fd;
1187 req->offs = SvVAL64 (offset);
1188 req->int2 = whence;
1189
1190 REQ_SEND;
1191}
1192
1193void
1256aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1194aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1257 SV * fh
1258 UV offset
1259 UV length
1260 SV * data
1261 UV dataoffset
1262 SV * callback
1263 ALIAS: 1195 ALIAS:
1264 aio_read = REQ_READ 1196 aio_read = EIO_READ
1265 aio_write = REQ_WRITE 1197 aio_write = EIO_WRITE
1266 PROTOTYPE: $$$$$;$
1267 PPCODE: 1198 PPCODE:
1268{ 1199{
1269 aio_req req;
1270 STRLEN svlen; 1200 STRLEN svlen;
1201 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1271 char *svptr = SvPVbyte (data, svlen); 1202 char *svptr = SvPVbyte (data, svlen);
1272 1203 UV len = SvUV (length);
1273 SvUPGRADE (data, SVt_PV);
1274 SvPOK_on (data);
1275 1204
1276 if (dataoffset < 0) 1205 if (dataoffset < 0)
1277 dataoffset += svlen; 1206 dataoffset += svlen;
1278 1207
1279 if (dataoffset < 0 || dataoffset > svlen) 1208 if (dataoffset < 0 || dataoffset > svlen)
1280 croak ("data offset outside of string"); 1209 croak ("dataoffset outside of data scalar");
1281 1210
1282 if (ix == REQ_WRITE) 1211 if (ix == EIO_WRITE)
1283 { 1212 {
1284 /* write: check length and adjust. */ 1213 /* write: check length and adjust. */
1285 if (length < 0 || length + dataoffset > svlen) 1214 if (!SvOK (length) || len + dataoffset > svlen)
1286 length = svlen - dataoffset; 1215 len = svlen - dataoffset;
1287 } 1216 }
1288 else 1217 else
1289 { 1218 {
1290 /* read: grow scalar as necessary */ 1219 /* read: check type and grow scalar as necessary */
1220 SvUPGRADE (data, SVt_PV);
1221 if (SvLEN (data) >= SvCUR (data))
1291 svptr = SvGROW (data, length + dataoffset); 1222 svptr = SvGROW (data, len + dataoffset + 1);
1223 else if (SvCUR (data) < len + dataoffset)
1224 croak ("length + dataoffset outside of scalar, and cannot grow");
1292 } 1225 }
1293
1294 if (length < 0)
1295 croak ("length must not be negative");
1296 1226
1297 { 1227 {
1298 dREQ; 1228 dREQ;
1299 1229
1300 req->type = ix; 1230 req->type = ix;
1301 req->fh = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1302 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1232 req->int1 = fd;
1303 : IoOFP (sv_2io (fh))); 1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1304 req->offset = offset; 1234 req->size = len;
1305 req->length = length;
1306 req->data = SvREFCNT_inc (data); 1235 req->sv2 = SvREFCNT_inc (data);
1307 req->dataptr = (char *)svptr + dataoffset; 1236 req->ptr2 = (char *)svptr + dataoffset;
1237 req->stroffset = dataoffset;
1308 1238
1309 if (!SvREADONLY (data)) 1239 if (!SvREADONLY (data))
1310 { 1240 {
1311 SvREADONLY_on (data); 1241 SvREADONLY_on (data);
1312 req->data2ptr = (void *)data; 1242 req->flags |= FLAG_SV2_RO_OFF;
1313 } 1243 }
1314 1244
1315 REQ_SEND; 1245 REQ_SEND;
1316 } 1246 }
1317} 1247}
1318 1248
1319void 1249void
1320aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1321 SV * out_fh 1251 ALIAS:
1322 SV * in_fh 1252 aio_readlink = EIO_READLINK
1323 UV in_offset 1253 aio_realpath = EIO_REALPATH
1324 UV length
1325 SV * callback
1326 PROTOTYPE: $$$$;$
1327 PPCODE: 1254 PPCODE:
1328{ 1255{
1256 dREQ;
1257
1258 req->type = ix;
1259 req_set_path1 (req, pathname);
1260
1261 REQ_SEND;
1262}
1263
1264void
1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1266 PPCODE:
1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1329 dREQ; 1270 dREQ;
1330 1271
1331 req->type = REQ_SENDFILE; 1272 req->type = EIO_SENDFILE;
1332 req->fh = newSVsv (out_fh); 1273 req->sv1 = newSVsv (out_fh);
1333 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1274 req->int1 = ofd;
1334 req->fh2 = newSVsv (in_fh); 1275 req->sv2 = newSVsv (in_fh);
1335 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1276 req->int2 = ifd;
1336 req->offset = in_offset; 1277 req->offs = in_offset;
1337 req->length = length; 1278 req->size = length;
1338 1279
1339 REQ_SEND; 1280 REQ_SEND;
1340} 1281}
1341 1282
1342void 1283void
1343aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1344 SV * fh
1345 UV offset
1346 IV length
1347 SV * callback
1348 PROTOTYPE: $$$;$
1349 PPCODE: 1285 PPCODE:
1350{ 1286{
1287 int fd = s_fileno_croak (fh, 0);
1351 dREQ; 1288 dREQ;
1352 1289
1353 req->type = REQ_READAHEAD; 1290 req->type = EIO_READAHEAD;
1354 req->fh = newSVsv (fh); 1291 req->sv1 = newSVsv (fh);
1355 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1292 req->int1 = fd;
1356 req->offset = offset; 1293 req->offs = offset;
1357 req->length = length; 1294 req->size = length;
1358 1295
1359 REQ_SEND; 1296 REQ_SEND;
1360} 1297}
1361 1298
1362void 1299void
1363aio_stat (fh_or_path,callback=&PL_sv_undef) 1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1364 SV * fh_or_path
1365 SV * callback
1366 ALIAS: 1301 ALIAS:
1367 aio_stat = REQ_STAT 1302 aio_stat = EIO_STAT
1368 aio_lstat = REQ_LSTAT 1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1369 PPCODE: 1305 PPCODE:
1370{ 1306{
1371 dREQ; 1307 dREQ;
1372 1308
1373 New (0, req->statdata, 1, Stat_t); 1309 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1374 if (!req->statdata)
1375 {
1376 req_free (req);
1377 croak ("out of memory during aio_req->statdata allocation");
1378 }
1379
1380 if (SvPOK (fh_or_path))
1381 {
1382 req->type = ix;
1383 req->data = newSVsv (fh_or_path);
1384 req->dataptr = SvPVbyte_nolen (req->data);
1385 }
1386 else
1387 {
1388 req->type = REQ_FSTAT;
1389 req->fh = newSVsv (fh_or_path);
1390 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1391 }
1392 1310
1393 REQ_SEND; 1311 REQ_SEND;
1394} 1312}
1395 1313
1314UV
1315major (UV dev)
1316 ALIAS:
1317 minor = 1
1318 CODE:
1319 RETVAL = ix ? major (dev) : minor (dev);
1320 OUTPUT:
1321 RETVAL
1322
1323UV
1324makedev (UV maj, UV min)
1325 CODE:
1326 RETVAL = makedev (maj, min);
1327 OUTPUT:
1328 RETVAL
1329
1396void 1330void
1331aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1336 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1337 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1338 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1339
1340 REQ_SEND;
1341}
1342
1343void
1344aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1345 PPCODE:
1346{
1347 dREQ;
1348
1349 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1350 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1351
1352 REQ_SEND;
1353}
1354
1355void
1356aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1357 PPCODE:
1358{
1359 dREQ;
1360
1361 req->int2 = mode;
1362 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1363
1364 REQ_SEND;
1365}
1366
1367void
1368aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1374 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1375 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1376
1377 REQ_SEND;
1378}
1379
1380void
1381aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->type = EIO_READDIR;
1387 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1388
1389 if (flags & EIO_READDIR_DENTS)
1390 req->int1 |= EIO_READDIR_CUSTOM2;
1391
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->type = EIO_MKDIR;
1404 req->int2 = mode;
1405 req_set_path1 (req, pathname);
1406
1407 REQ_SEND;
1408}
1409
1410void
1397aio_unlink (pathname,callback=&PL_sv_undef) 1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1398 SV * pathname
1399 SV * callback
1400 ALIAS: 1412 ALIAS:
1401 aio_unlink = REQ_UNLINK 1413 aio_unlink = EIO_UNLINK
1402 aio_rmdir = REQ_RMDIR 1414 aio_rmdir = EIO_RMDIR
1403 aio_readdir = REQ_READDIR 1415 aio_readdir = EIO_READDIR
1404 PPCODE: 1416 PPCODE:
1405{ 1417{
1406 dREQ; 1418 dREQ;
1407 1419
1408 req->type = ix; 1420 req->type = ix;
1409 req->data = newSVsv (pathname); 1421 req_set_path1 (req, pathname);
1410 req->dataptr = SvPVbyte_nolen (req->data); 1422
1411
1412 REQ_SEND; 1423 REQ_SEND;
1413} 1424}
1414 1425
1415void 1426void
1416aio_link (oldpath,newpath,callback=&PL_sv_undef) 1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1417 SV * oldpath
1418 SV * newpath
1419 SV * callback
1420 ALIAS: 1428 ALIAS:
1421 aio_link = REQ_LINK 1429 aio_link = EIO_LINK
1422 aio_symlink = REQ_SYMLINK 1430 aio_symlink = EIO_SYMLINK
1423 aio_rename = REQ_RENAME 1431 aio_rename = EIO_RENAME
1424 PPCODE: 1432 PPCODE:
1425{ 1433{
1434 eio_wd wd2 = 0;
1426 dREQ; 1435 dREQ;
1427 1436
1428 req->type = ix; 1437 req->type = ix;
1429 req->fh = newSVsv (oldpath); 1438 req_set_path1 (req, oldpath);
1430 req->data2ptr = SvPVbyte_nolen (req->fh); 1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1431 req->data = newSVsv (newpath); 1440 req->int3 = (long)wd2;
1432 req->dataptr = SvPVbyte_nolen (req->data);
1433 1441
1434 REQ_SEND; 1442 REQ_SEND;
1435} 1443}
1436 1444
1437void 1445void
1438aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1439 SV * pathname
1440 SV * callback
1441 UV mode
1442 UV dev
1443 PPCODE: 1447 PPCODE:
1444{ 1448{
1445 dREQ; 1449 dREQ;
1446 1450
1447 req->type = REQ_MKNOD; 1451 req->type = EIO_MKNOD;
1448 req->data = newSVsv (pathname);
1449 req->dataptr = SvPVbyte_nolen (req->data);
1450 req->mode = (mode_t)mode; 1452 req->int2 = (mode_t)mode;
1451 req->offset = dev; 1453 req->offs = dev;
1454 req_set_path1 (req, pathname);
1452 1455
1453 REQ_SEND; 1456 REQ_SEND;
1454} 1457}
1455 1458
1456void 1459void
1460aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1461 ALIAS:
1462 aio_mtouch = EIO_MTOUCH
1463 aio_msync = EIO_MSYNC
1464 PPCODE:
1465{
1466 STRLEN svlen;
1467 char *svptr = SvPVbyte (data, svlen);
1468 UV len = SvUV (length);
1469
1470 if (offset < 0)
1471 offset += svlen;
1472
1473 if (offset < 0 || offset > svlen)
1474 croak ("offset outside of scalar");
1475
1476 if (!SvOK (length) || len + offset > svlen)
1477 len = svlen - offset;
1478
1479 {
1480 dREQ;
1481
1482 req->type = ix;
1483 req->sv2 = SvREFCNT_inc (data);
1484 req->ptr2 = (char *)svptr + offset;
1485 req->size = len;
1486 req->int1 = flags;
1487
1488 REQ_SEND;
1489 }
1490}
1491
1492void
1493aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1494 PPCODE:
1495{
1496 STRLEN svlen;
1497 char *svptr = SvPVbyte (data, svlen);
1498 UV len = SvUV (length);
1499
1500 if (offset < 0)
1501 offset += svlen;
1502
1503 if (offset < 0 || offset > svlen)
1504 croak ("offset outside of scalar");
1505
1506 if (!SvOK (length) || len + offset > svlen)
1507 len = svlen - offset;
1508
1509 {
1510 dREQ;
1511
1512 req->type = EIO_MLOCK;
1513 req->sv2 = SvREFCNT_inc (data);
1514 req->ptr2 = (char *)svptr + offset;
1515 req->size = len;
1516
1517 REQ_SEND;
1518 }
1519}
1520
1521void
1522aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->type = EIO_MLOCKALL;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531}
1532
1533void
1534aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1535 PPCODE:
1536{
1537 int fd = s_fileno_croak (fh, 0);
1538 dREQ;
1539
1540 req->type = EIO_CUSTOM;
1541 req->sv1 = newSVsv (fh);
1542 req->int1 = fd;
1543
1544 req->feed = fiemap;
1545#if HAVE_FIEMAP
1546 /* keep our fingers crossed that the next two types are 64 bit */
1547 req->offs = start;
1548 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1549 req->int2 = flags;
1550 req->int3 = SvOK (count) ? SvIV (count) : -1;
1551#endif
1552
1553 REQ_SEND;
1554}
1555
1556void
1457aio_busy (delay,callback=&PL_sv_undef) 1557aio_busy (double delay, SV *callback=&PL_sv_undef)
1458 double delay
1459 SV * callback
1460 PPCODE: 1558 PPCODE:
1461{ 1559{
1462 dREQ; 1560 dREQ;
1463 1561
1464 req->type = REQ_BUSY; 1562 req->type = EIO_BUSY;
1465 req->fd = delay < 0. ? 0 : delay; 1563 req->nv1 = delay < 0. ? 0. : delay;
1466 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1467 1564
1468 REQ_SEND; 1565 REQ_SEND;
1469} 1566}
1470 1567
1471void 1568void
1472aio_group (callback=&PL_sv_undef) 1569aio_group (SV *callback=&PL_sv_undef)
1473 SV * callback
1474 PROTOTYPE: ;$
1475 PPCODE: 1570 PPCODE:
1476{ 1571{
1477 dREQ; 1572 dREQ;
1478 1573
1479 req->type = REQ_GROUP; 1574 req->type = EIO_GROUP;
1575
1480 req_send (req); 1576 req_submit (req);
1481
1482 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1577 XPUSHs (req_sv (req, aio_grp_stash));
1483} 1578}
1484 1579
1485void 1580void
1486aio_nop (callback=&PL_sv_undef) 1581aio_nop (SV *callback=&PL_sv_undef)
1487 SV * callback 1582 ALIAS:
1583 aio_nop = EIO_NOP
1584 aio_sync = EIO_SYNC
1488 PPCODE: 1585 PPCODE:
1489{ 1586{
1490 dREQ; 1587 dREQ;
1491 1588
1492 req->type = REQ_NOP; 1589 req->type = ix;
1493 1590
1494 REQ_SEND; 1591 REQ_SEND;
1495} 1592}
1496 1593
1497int 1594int
1498aioreq_pri (int pri = 0) 1595aioreq_pri (int pri = 0)
1499 PROTOTYPE: ;$
1500 CODE: 1596 CODE:
1501 RETVAL = next_pri - PRI_BIAS; 1597 RETVAL = next_pri;
1502 if (items > 0) 1598 if (items > 0)
1503 { 1599 {
1504 if (pri < PRI_MIN) pri = PRI_MIN; 1600 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1505 if (pri > PRI_MAX) pri = PRI_MAX; 1601 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1506 next_pri = pri + PRI_BIAS; 1602 next_pri = pri;
1507 } 1603 }
1508 OUTPUT: 1604 OUTPUT:
1509 RETVAL 1605 RETVAL
1510 1606
1511void 1607void
1512aioreq_nice (int nice = 0) 1608aioreq_nice (int nice = 0)
1513 CODE: 1609 CODE:
1514 nice = next_pri - nice; 1610 nice = next_pri - nice;
1515 if (nice < PRI_MIN) nice = PRI_MIN; 1611 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1516 if (nice > PRI_MAX) nice = PRI_MAX; 1612 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1517 next_pri = nice + PRI_BIAS; 1613 next_pri = nice;
1518 1614
1519void 1615void
1520flush () 1616flush ()
1617 CODE:
1618 while (eio_nreqs ())
1619 {
1620 poll_wait ();
1621 poll_cb ();
1622 }
1623
1624int
1625poll ()
1626 CODE:
1627 poll_wait ();
1628 RETVAL = poll_cb ();
1629 OUTPUT:
1630 RETVAL
1631
1632int
1633poll_fileno ()
1634 CODE:
1635 RETVAL = s_epipe_fd (&respipe);
1636 OUTPUT:
1637 RETVAL
1638
1639int
1640poll_cb (...)
1521 PROTOTYPE: 1641 PROTOTYPE:
1522 CODE: 1642 CODE:
1523 while (nreqs)
1524 {
1525 poll_wait ();
1526 poll_cb (0); 1643 RETVAL = poll_cb ();
1527 }
1528
1529void
1530poll()
1531 PROTOTYPE:
1532 CODE:
1533 if (nreqs)
1534 {
1535 poll_wait ();
1536 poll_cb (0);
1537 }
1538
1539int
1540poll_fileno()
1541 PROTOTYPE:
1542 CODE:
1543 RETVAL = respipe [0];
1544 OUTPUT: 1644 OUTPUT:
1545 RETVAL 1645 RETVAL
1546 1646
1647void
1648poll_wait ()
1649 CODE:
1650 poll_wait ();
1651
1547int 1652int
1548poll_cb(...) 1653nreqs ()
1549 PROTOTYPE:
1550 CODE: 1654 CODE:
1551 RETVAL = poll_cb (0); 1655 RETVAL = eio_nreqs ();
1552 OUTPUT: 1656 OUTPUT:
1553 RETVAL 1657 RETVAL
1554 1658
1555int 1659int
1556poll_some(int max = 0) 1660nready ()
1557 PROTOTYPE: $
1558 CODE: 1661 CODE:
1559 RETVAL = poll_cb (max); 1662 RETVAL = eio_nready ();
1560 OUTPUT: 1663 OUTPUT:
1561 RETVAL 1664 RETVAL
1562 1665
1563void 1666int
1564poll_wait() 1667npending ()
1565 PROTOTYPE:
1566 CODE: 1668 CODE:
1567 if (nreqs) 1669 RETVAL = eio_npending ();
1568 poll_wait ();
1569
1570int
1571nreqs()
1572 PROTOTYPE:
1573 CODE:
1574 RETVAL = nreqs;
1575 OUTPUT: 1670 OUTPUT:
1576 RETVAL 1671 RETVAL
1577 1672
1578int 1673int
1579nready() 1674nthreads ()
1580 PROTOTYPE:
1581 CODE: 1675 CODE:
1582 RETVAL = get_nready (); 1676 RETVAL = eio_nthreads ();
1583 OUTPUT: 1677 OUTPUT:
1584 RETVAL 1678 RETVAL
1585 1679
1586int 1680int
1587npending() 1681fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1588 PROTOTYPE: 1682 CODE:
1683 RETVAL = posix_fadvise (fh, offset, length, advice);
1684 OUTPUT:
1685 RETVAL
1686
1687IV
1688sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1689 CODE:
1690 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1691 OUTPUT:
1692 RETVAL
1693
1694void
1695mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1696 PPCODE:
1697 sv_unmagic (scalar, MMAP_MAGIC);
1698{
1699 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1700 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1701 if (addr == (void *)-1)
1702 XSRETURN_NO;
1703
1704 sv_force_normal (scalar);
1705
1706 /* we store the length in mg_obj, as namlen is I32 :/ */
1707 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1708 ->mg_obj = (SV *)length;
1709
1710 SvUPGRADE (scalar, SVt_PV); /* nop... */
1711
1712 if (!(prot & PROT_WRITE))
1713 SvREADONLY_on (scalar);
1714
1715 if (SvLEN (scalar))
1716 Safefree (SvPVX (scalar));
1717
1718 SvPVX (scalar) = (char *)addr;
1719 SvCUR_set (scalar, length);
1720 SvLEN_set (scalar, 0);
1721 SvPOK_only (scalar);
1722
1723 XSRETURN_YES;
1724}
1725
1726void
1727munmap (SV *scalar)
1589 CODE: 1728 CODE:
1590 RETVAL = get_npending (); 1729 sv_unmagic (scalar, MMAP_MAGIC);
1730
1731int
1732madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1733 ALIAS:
1734 mprotect = 1
1735 CODE:
1736{
1737 STRLEN svlen;
1738 void *addr = SvPVbyte (scalar, svlen);
1739 size_t len = SvUV (length);
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 addr = (void *)(((intptr_t)addr) + offset);
1751 eio_page_align (&addr, &len);
1752
1753 switch (ix)
1754 {
1755 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1756 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1757 }
1758}
1591 OUTPUT: 1759 OUTPUT:
1592 RETVAL 1760 RETVAL
1761
1762int
1763munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1764 CODE:
1765{
1766 STRLEN svlen;
1767 void *addr = SvPVbyte (scalar, svlen);
1768 size_t len = SvUV (length);
1769
1770 if (offset < 0)
1771 offset += svlen;
1772
1773 if (offset < 0 || offset > svlen)
1774 croak ("offset outside of scalar");
1775
1776 if (!SvOK (length) || len + offset > svlen)
1777 len = svlen - offset;
1778
1779 addr = (void *)(((intptr_t)addr) + offset);
1780 eio_page_align (&addr, &len);
1781#if _POSIX_MEMLOCK_RANGE
1782 RETVAL = munlock (addr, len);
1783#else
1784 RETVAL = EIO_ENOSYS ();
1785#endif
1786}
1787 OUTPUT:
1788 RETVAL
1789
1790int
1791munlockall ()
1792 CODE:
1793#if _POSIX_MEMLOCK
1794 munlockall ();
1795#else
1796 RETVAL = EIO_ENOSYS ();
1797#endif
1798 OUTPUT:
1799 RETVAL
1800
1801int
1802splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1803 CODE:
1804{
1805#if HAVE_LINUX_SPLICE
1806 loff_t off_in_, off_out_;
1807 RETVAL = splice (
1808 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1809 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1810 length, flags
1811 );
1812#else
1813 RETVAL = EIO_ENOSYS ();
1814#endif
1815}
1816 OUTPUT:
1817 RETVAL
1818
1819int
1820tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1821 CODE:
1822#if HAVE_LINUX_SPLICE
1823 RETVAL = tee (rfh, wfh, length, flags);
1824#else
1825 RETVAL = EIO_ENOSYS ();
1826#endif
1827 OUTPUT:
1828 RETVAL
1829
1830void _on_next_submit (SV *cb)
1831 CODE:
1832 SvREFCNT_dec (on_next_submit);
1833 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1593 1834
1594PROTOTYPES: DISABLE 1835PROTOTYPES: DISABLE
1836
1837MODULE = IO::AIO PACKAGE = IO::AIO::WD
1838
1839BOOT:
1840{
1841 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1842 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1843}
1844
1845void
1846DESTROY (SV *self)
1847 CODE:
1848{
1849 aio_wd wd = SvAIO_WD (self);
1850#if HAVE_AT
1851 {
1852 SV *callback = &PL_sv_undef;
1853 dREQ; /* clobbers next_pri :/ */
1854 next_pri = req->pri; /* restore next_pri */
1855 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1856 req->type = EIO_WD_CLOSE;
1857 req->wd = wd;
1858 REQ_SEND;
1859 }
1860#else
1861 eio_wd_close_sync (wd);
1862#endif
1863}
1595 1864
1596MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1865MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1597 1866
1598void 1867void
1599cancel (aio_req_ornot req) 1868cancel (aio_req_ornot req)
1600 CODE: 1869 CODE:
1601 req_cancel (req); 1870 eio_cancel (req);
1602 1871
1603void 1872void
1604cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1873cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1605 CODE: 1874 PPCODE:
1875{
1876 if (GIMME_V != G_VOID)
1877 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1878
1879 if (items > 1)
1880 {
1881 SV *cb_cv =get_cb (callback);
1882
1606 SvREFCNT_dec (req->callback); 1883 SvREFCNT_dec (req->callback);
1607 req->callback = newSVsv (callback); 1884 req->callback = SvREFCNT_inc (cb_cv);
1885 }
1886}
1608 1887
1609MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1888MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1610 1889
1611void 1890void
1612add (aio_req grp, ...) 1891add (aio_req grp, ...)
1613 PPCODE: 1892 PPCODE:
1614{ 1893{
1615 int i; 1894 int i;
1616 aio_req req;
1617 1895
1618 if (grp->fd == 2) 1896 if (grp->int1 == 2)
1619 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1897 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1620 1898
1621 for (i = 1; i < items; ++i ) 1899 for (i = 1; i < items; ++i )
1622 { 1900 {
1901 aio_req req;
1902
1623 if (GIMME_V != G_VOID) 1903 if (GIMME_V != G_VOID)
1624 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1904 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1625 1905
1626 req = SvAIO_REQ (ST (i)); 1906 req = SvAIO_REQ (ST (i));
1627 1907
1628 if (req) 1908 if (req)
1629 { 1909 eio_grp_add (grp, req);
1630 ++grp->length;
1631 req->grp = grp;
1632
1633 req->grp_prev = 0;
1634 req->grp_next = grp->grp_first;
1635
1636 if (grp->grp_first)
1637 grp->grp_first->grp_prev = req;
1638
1639 grp->grp_first = req;
1640 }
1641 } 1910 }
1642} 1911}
1643 1912
1644void 1913void
1645cancel_subs (aio_req_ornot req) 1914cancel_subs (aio_req_ornot req)
… …
1654 AV *av; 1923 AV *av;
1655 1924
1656 grp->errorno = errno; 1925 grp->errorno = errno;
1657 1926
1658 av = newAV (); 1927 av = newAV ();
1928 av_extend (av, items - 1);
1659 1929
1660 for (i = 1; i < items; ++i ) 1930 for (i = 1; i < items; ++i )
1661 av_push (av, newSVsv (ST (i))); 1931 av_push (av, newSVsv (ST (i)));
1662 1932
1663 SvREFCNT_dec (grp->data); 1933 SvREFCNT_dec (grp->sv1);
1664 grp->data = (SV *)av; 1934 grp->sv1 = (SV *)av;
1665} 1935}
1666 1936
1667void 1937void
1668errno (aio_req grp, int errorno = errno) 1938errno (aio_req grp, int errorno = errno)
1669 CODE: 1939 CODE:
1670 grp->errorno = errorno; 1940 grp->errorno = errorno;
1671 1941
1672void 1942void
1673limit (aio_req grp, int limit) 1943limit (aio_req grp, int limit)
1674 CODE: 1944 CODE:
1675 grp->fd2 = limit; 1945 eio_grp_limit (grp, limit);
1676 aio_grp_feed (grp);
1677 1946
1678void 1947void
1679feed (aio_req grp, SV *callback=&PL_sv_undef) 1948feed (aio_req grp, SV *callback=&PL_sv_undef)
1680 CODE: 1949 CODE:
1681{ 1950{
1682 SvREFCNT_dec (grp->fh2); 1951 SvREFCNT_dec (grp->sv2);
1683 grp->fh2 = newSVsv (callback); 1952 grp->sv2 = newSVsv (callback);
1953 grp->feed = aio_grp_feed;
1684 1954
1685 if (grp->fd2 <= 0) 1955 if (grp->int2 <= 0)
1686 grp->fd2 = 2; 1956 grp->int2 = 2;
1687 1957
1688 aio_grp_feed (grp); 1958 eio_grp_limit (grp, grp->int2);
1689} 1959}
1690 1960

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