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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC vs.
Revision 1.216 by root, Wed Jul 25 16:12:28 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/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 146#include "def0.h"
50 147
51/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
52#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif 150#endif
55 151#ifndef major
56#ifndef PTHREAD_STACK_MIN 152# define major(dev) ((dev) >> 8)
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif 153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
60 157
61#if __ia64 158#ifndef PAGESIZE
62# define STACKSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 160#endif
64# 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
65#else 215#else
66# define STACKSIZE 16384 216 errno = ENOSYS;
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 217#endif
79#endif 218}
80 219
81/* buffer size for various temporary buffers */ 220/*****************************************************************************/
82#define AIO_BUFSIZE 65536
83
84#define dBUF \
85 char *aio_buf; \
86 LOCK (wrklock); \
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \
89 if (!aio_buf) \
90 return -1;
91 221
92enum { 222enum {
93 REQ_QUIT, 223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
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,
102 REQ_GROUP, REQ_NOP,
103 REQ_BUSY,
104}; 224};
105 225
106#define AIO_REQ_KLASS "IO::AIO::REQ"
107#define AIO_GRP_KLASS "IO::AIO::GRP"
108
109typedef struct aio_cb
110{
111 struct aio_cb *volatile next;
112
113 SV *data, *callback;
114 SV *fh, *fh2;
115 void *dataptr, *data2ptr;
116 Stat_t *statdata;
117 off_t offset;
118 size_t length;
119 ssize_t result;
120
121 STRLEN dataoffset;
122 int type;
123 int fd, fd2;
124 int errorno;
125 mode_t mode; /* open */
126
127 unsigned char flags;
128 unsigned char pri;
129
130 SV *self; /* the perl counterpart of this request, if any */
131 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132} aio_cb;
133
134enum {
135 FLAG_CANCELLED = 0x01,
136};
137
138typedef aio_cb *aio_req; 226typedef eio_req *aio_req;
139typedef aio_cb *aio_req_ornot; 227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
140 229
141enum { 230static SV *on_next_submit;
142 PRI_MIN = -4, 231static int next_pri = EIO_PRI_DEFAULT;
143 PRI_MAX = 4, 232static int max_outstanding;
144 233
145 DEFAULT_PRI = 0, 234static s_epipe respipe;
146 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148};
149 235
150#define AIO_TICKS ((1000000 + 1023) >> 10)
151
152static unsigned int max_poll_time = 0;
153static unsigned int max_poll_reqs = 0;
154
155/* calculcate time difference in ~1/AIO_TICKS of a second */
156static int tvdiff (struct timeval *tv1, struct timeval *tv2)
157{
158 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
159 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
160}
161
162static int next_pri = DEFAULT_PRI + PRI_BIAS;
163
164static unsigned int started, idle, wanted;
165
166#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
167# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
168#else
169# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
170#endif
171
172#define LOCK(mutex) pthread_mutex_lock (&(mutex))
173#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
174
175/* worker threads management */
176static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
177
178typedef struct worker {
179 /* locked by wrklock */
180 struct worker *prev, *next;
181
182 pthread_t tid;
183
184 /* locked by reslock, reqlock or wrklock */
185 aio_req req; /* currently processed request */
186 void *dbuf;
187 DIR *dirp;
188} worker;
189
190static worker wrk_first = { &wrk_first, &wrk_first, 0 };
191
192static void worker_clear (worker *wrk)
193{
194 if (wrk->dirp)
195 {
196 closedir (wrk->dirp);
197 wrk->dirp = 0;
198 }
199
200 if (wrk->dbuf)
201 {
202 free (wrk->dbuf);
203 wrk->dbuf = 0;
204 }
205}
206
207static void worker_free (worker *wrk)
208{
209 wrk->next->prev = wrk->prev;
210 wrk->prev->next = wrk->next;
211
212 free (wrk);
213}
214
215static volatile unsigned int nreqs, nready, npending;
216static volatile unsigned int max_idle = 4;
217static volatile unsigned int max_outstanding = 0xffffffff;
218static int respipe [2];
219
220static pthread_mutex_t reslock = AIO_MUTEX_INIT;
221static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
222static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
223
224#if WORDACCESS_UNSAFE
225
226static unsigned int get_nready ()
227{
228 unsigned int retval;
229
230 LOCK (reqlock);
231 retval = nready;
232 UNLOCK (reqlock);
233
234 return retval;
235}
236
237static unsigned int get_npending ()
238{
239 unsigned int retval;
240
241 LOCK (reslock);
242 retval = npending;
243 UNLOCK (reslock);
244
245 return retval;
246}
247
248static unsigned int get_nthreads ()
249{
250 unsigned int retval;
251
252 LOCK (wrklock);
253 retval = started;
254 UNLOCK (wrklock);
255
256 return retval;
257}
258
259#else
260
261# define get_nready() nready
262# define get_npending() npending
263# define get_nthreads() started
264
265#endif
266
267/*
268 * a somewhat faster data structure might be nice, but
269 * with 8 priorities this actually needs <20 insns
270 * per shift, the most expensive operation.
271 */
272typedef struct {
273 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
274 int size;
275} reqq;
276
277static reqq req_queue;
278static reqq res_queue;
279
280int reqq_push (reqq *q, aio_req req)
281{
282 int pri = req->pri;
283 req->next = 0;
284
285 if (q->qe[pri])
286 {
287 q->qe[pri]->next = req;
288 q->qe[pri] = req;
289 }
290 else
291 q->qe[pri] = q->qs[pri] = req;
292
293 return q->size++;
294}
295
296aio_req reqq_shift (reqq *q)
297{
298 int pri;
299
300 if (!q->size)
301 return 0;
302
303 --q->size;
304
305 for (pri = NUM_PRI; pri--; )
306 {
307 aio_req req = q->qs[pri];
308
309 if (req)
310 {
311 if (!(q->qs[pri] = req->next))
312 q->qe[pri] = 0;
313
314 return req;
315 }
316 }
317
318 abort ();
319}
320
321static int poll_cb ();
322static void req_invoke (aio_req req);
323static void req_free (aio_req req); 236static void req_destroy (aio_req req);
324static void req_cancel (aio_req req); 237static void req_cancel (aio_req req);
325 238
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
326/* must be called at most once */ 253/* must be called at most once */
327static SV *req_sv (aio_req req, const char *klass) 254static SV *
255req_sv (aio_req req, HV *stash)
328{ 256{
329 if (!req->self) 257 if (!req->self)
330 { 258 {
331 req->self = (SV *)newHV (); 259 req->self = (SV *)newHV ();
332 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
333 } 261 }
334 262
335 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
336} 264}
337 265
338static 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)
339{ 274{
340 MAGIC *mg; 275 MAGIC *mg;
341 276
342 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")))
343 croak ("object of class " AIO_REQ_KLASS " expected"); 282 croak ("object of class IO::AIO::REQ expected");
344 283
345 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
346 285
347 return mg ? (aio_req)mg->mg_ptr : 0; 286 return mg ? (aio_req)mg->mg_ptr : 0;
348} 287}
349 288
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
350static void aio_grp_feed (aio_req grp) 301aio_grp_feed (aio_req grp)
351{ 302{
352 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 303 if (grp->sv2 && SvOK (grp->sv2))
353 { 304 {
354 int old_len = grp->length;
355
356 if (grp->fh2 && SvOK (grp->fh2))
357 {
358 dSP; 305 dSP;
359 306
360 ENTER; 307 ENTER;
361 SAVETMPS; 308 SAVETMPS;
362 PUSHMARK (SP); 309 PUSHMARK (SP);
363 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
364 PUTBACK; 311 PUTBACK;
365 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
366 SPAGAIN; 313 SPAGAIN;
367 FREETMPS; 314 FREETMPS;
368 LEAVE; 315 LEAVE;
369 }
370
371 /* stop if no progress has been made */
372 if (old_len == grp->length)
373 {
374 SvREFCNT_dec (grp->fh2);
375 grp->fh2 = 0;
376 break;
377 }
378 } 316 }
379} 317}
380 318
381static void aio_grp_dec (aio_req grp) 319static void
320req_submit (eio_req *req)
382{ 321{
383 --grp->length; 322 eio_submit (req);
384 323
385 /* call feeder, if applicable */ 324 if (expect_false (on_next_submit))
386 aio_grp_feed (grp);
387
388 /* finish, if done */
389 if (!grp->length && grp->fd)
390 { 325 {
391 req_invoke (grp); 326 dSP;
392 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);
393 } 334 }
394} 335}
395 336
337static int
396static void req_invoke (aio_req req) 338req_invoke (eio_req *req)
397{ 339{
398 dSP; 340 if (req->flags & FLAG_SV2_RO_OFF)
341 SvREADONLY_off (req->sv2);
399 342
400 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
401 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
402 ENTER; 349 ENTER;
403 SAVETMPS; 350 SAVETMPS;
404 PUSHMARK (SP); 351 PUSHMARK (SP);
405 EXTEND (SP, 1); 352 EXTEND (SP, 1);
406 353
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
407 switch (req->type) 367 switch (req->type)
408 { 368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
409 case REQ_READDIR: 373 case EIO_READDIR:
410 { 374 {
411 SV *rv = &PL_sv_undef; 375 SV *rv = &PL_sv_undef;
412 376
413 if (req->result >= 0) 377 if (req->result >= 0)
414 { 378 {
415 int i; 379 int i;
416 char *buf = req->data2ptr; 380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
417 AV *av = newAV (); 382 AV *av = newAV ();
418 383
419 av_extend (av, req->result - 1); 384 av_extend (av, req->result - 1);
420 385
421 for (i = 0; i < req->result; ++i) 386 for (i = 0; i < req->result; ++i)
422 { 387 {
423 SV *sv = newSVpv (buf, 0); 388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
424 391
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
425 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);
426 buf += SvCUR (sv) + 1; 420 names += SvCUR (name) + 1;
421 }
427 } 422 }
428 423
429 rv = sv_2mortal (newRV_noinc ((SV *)av)); 424 rv = sv_2mortal (newRV_noinc ((SV *)av));
430 } 425 }
431 426
432 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))));
433 } 431 }
434 break; 432 break;
435 433
436 case REQ_OPEN: 434 case EIO_OPEN:
437 { 435 {
438 /* convert fd to fh */ 436 /* convert fd to fh */
439 SV *fh; 437 SV *fh = &PL_sv_undef;
440 438
441 PUSHs (sv_2mortal (newSViv (req->result))); 439 if (req->result >= 0)
442 PUTBACK; 440 {
443 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 441 GV *gv = (GV *)sv_newmortal ();
444 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);
445 448
446 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 );
447 456
457 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458 fh = (SV *)gv;
459 }
460
448 PUSHMARK (SP); 461 PUSHs (fh);
449 XPUSHs (sv_2mortal (fh));
450 } 462 }
451 break; 463 break;
452 464
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
453 case REQ_GROUP: 497 case EIO_GROUP:
454 req->fd = 2; /* mark group as finished */ 498 req->int1 = 2; /* mark group as finished */
455 499
456 if (req->data) 500 if (req->sv1)
457 { 501 {
458 int i; 502 int i;
459 AV *av = (AV *)req->data; 503 AV *av = (AV *)req->sv1;
460 504
461 EXTEND (SP, AvFILL (av) + 1); 505 EXTEND (SP, AvFILL (av) + 1);
462 for (i = 0; i <= AvFILL (av); ++i) 506 for (i = 0; i <= AvFILL (av); ++i)
463 PUSHs (*av_fetch (av, i, 0)); 507 PUSHs (*av_fetch (av, i, 0));
464 } 508 }
465 break; 509 break;
466 510
467 case REQ_NOP: 511 case EIO_NOP:
468 case REQ_BUSY: 512 case EIO_BUSY:
469 break; 513 break;
470 514
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
471 default: 592 default:
472 PUSHs (sv_2mortal (newSViv (req->result))); 593 PUSHs (sv_result);
473 break; 594 break;
474 } 595 }
475 596
476 errno = req->errorno; 597 errno = req->errorno;
477 598
478 PUTBACK; 599 PUTBACK;
479 call_sv (req->callback, G_VOID | G_EVAL); 600 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
480 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;
481 607
482 FREETMPS; 608 FREETMPS;
483 LEAVE; 609 LEAVE;
610
611 PUTBACK;
484 } 612 }
485 613
486 if (req->grp) 614 return !!SvTRUE (ERRSV);
487 {
488 aio_req grp = req->grp;
489
490 /* unlink request */
491 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
492 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
493
494 if (grp->grp_first == req)
495 grp->grp_first = req->grp_next;
496
497 aio_grp_dec (grp);
498 }
499
500 if (SvTRUE (ERRSV))
501 {
502 req_free (req);
503 croak (0);
504 }
505} 615}
506 616
507static void req_free (aio_req req) 617static void
618req_destroy (aio_req req)
508{ 619{
509 if (req->self) 620 if (req->self)
510 { 621 {
511 sv_unmagic (req->self, PERL_MAGIC_ext); 622 sv_unmagic (req->self, PERL_MAGIC_ext);
512 SvREFCNT_dec (req->self); 623 SvREFCNT_dec (req->self);
513 } 624 }
514 625
515 SvREFCNT_dec (req->data);
516 SvREFCNT_dec (req->fh); 626 SvREFCNT_dec (req->sv1);
517 SvREFCNT_dec (req->fh2); 627 SvREFCNT_dec (req->sv2);
628 SvREFCNT_dec (req->sv3);
629 SvREFCNT_dec (req->sv4);
518 SvREFCNT_dec (req->callback); 630 SvREFCNT_dec (req->callback);
519 Safefree (req->statdata);
520 631
521 if (req->type == REQ_READDIR)
522 free (req->data2ptr);
523
524 Safefree (req); 632 free (req);
525} 633}
526 634
635static void
527static void req_cancel_subs (aio_req grp) 636req_cancel_subs (aio_req grp)
528{ 637{
529 aio_req sub;
530
531 if (grp->type != REQ_GROUP) 638 if (grp->type != EIO_GROUP)
532 return; 639 return;
533 640
534 SvREFCNT_dec (grp->fh2); 641 SvREFCNT_dec (grp->sv2);
535 grp->fh2 = 0; 642 grp->sv2 = 0;
536 643
537 for (sub = grp->grp_first; sub; sub = sub->grp_next) 644 eio_grp_cancel (grp);
538 req_cancel (sub);
539} 645}
540 646
541static void req_cancel (aio_req req) 647static void ecb_cold
648create_respipe (void)
542{ 649{
543 req->flags |= FLAG_CANCELLED; 650 if (s_epipe_renew (&respipe))
544 651 croak ("IO::AIO: unable to initialize result pipe");
545 req_cancel_subs (req);
546} 652}
547 653
548static void *aio_proc(void *arg); 654static void
549 655poll_wait (void)
550static void start_thread (void)
551{ 656{
552 sigset_t fullsigset, oldsigset;
553 pthread_attr_t attr;
554
555 worker *wrk = calloc (1, sizeof (worker));
556
557 if (!wrk)
558 croak ("unable to allocate worker thread data");
559
560 pthread_attr_init (&attr);
561 pthread_attr_setstacksize (&attr, STACKSIZE);
562 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
563#ifdef PTHREAD_SCOPE_PROCESS
564 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
565#endif
566
567 sigfillset (&fullsigset);
568
569 LOCK (wrklock);
570 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
571
572 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
573 {
574 wrk->prev = &wrk_first;
575 wrk->next = wrk_first.next;
576 wrk_first.next->prev = wrk;
577 wrk_first.next = wrk;
578 ++started;
579 }
580 else
581 free (wrk);
582
583 sigprocmask (SIG_SETMASK, &oldsigset, 0);
584 UNLOCK (wrklock);
585}
586
587static void maybe_start_thread ()
588{
589 if (get_nthreads () >= wanted)
590 return;
591
592 /* todo: maybe use idle here, but might be less exact */
593 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
594 return;
595
596 start_thread ();
597}
598
599static void req_send (aio_req req)
600{
601 ++nreqs;
602
603 LOCK (reqlock);
604 ++nready;
605 reqq_push (&req_queue, req);
606 pthread_cond_signal (&reqwait);
607 UNLOCK (reqlock);
608
609 maybe_start_thread ();
610}
611
612static void end_thread (void)
613{
614 aio_req req;
615
616 Newz (0, req, 1, aio_cb);
617
618 req->type = REQ_QUIT;
619 req->pri = PRI_MAX + PRI_BIAS;
620
621 LOCK (reqlock);
622 reqq_push (&req_queue, req);
623 pthread_cond_signal (&reqwait);
624 UNLOCK (reqlock);
625
626 LOCK (wrklock);
627 --started;
628 UNLOCK (wrklock);
629}
630
631static void set_max_idle (int nthreads)
632{
633 if (WORDACCESS_UNSAFE) LOCK (reqlock);
634 max_idle = nthreads <= 0 ? 1 : nthreads;
635 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
636}
637
638static void min_parallel (int nthreads)
639{
640 if (wanted < nthreads)
641 wanted = nthreads;
642}
643
644static void max_parallel (int nthreads)
645{
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (started > wanted)
650 end_thread ();
651}
652
653static void poll_wait ()
654{
655 fd_set rfd;
656
657 while (nreqs) 657 while (eio_nreqs ())
658 { 658 {
659 int size; 659 int size;
660 if (WORDACCESS_UNSAFE) LOCK (reslock); 660
661 X_LOCK (reslock);
661 size = res_queue.size; 662 size = res_queue.size;
662 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 663 X_UNLOCK (reslock);
663 664
664 if (size) 665 if (size)
665 return; 666 return;
666 667
667 maybe_start_thread (); 668 etp_maybe_start_thread ();
668 669
669 FD_ZERO(&rfd); 670 s_epipe_wait (&respipe);
670 FD_SET(respipe [0], &rfd);
671
672 select (respipe [0] + 1, &rfd, 0, 0, 0);
673 } 671 }
674} 672}
675 673
676static int poll_cb () 674static int
675poll_cb (void)
677{ 676{
678 dSP;
679 int count = 0;
680 int maxreqs = max_poll_reqs;
681 int do_croak = 0;
682 struct timeval tv_start, tv_now;
683 aio_req req;
684
685 if (max_poll_time)
686 gettimeofday (&tv_start, 0);
687
688 for (;;) 677 for (;;)
689 { 678 {
690 for (;;) 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)
691 { 792 {
692 maybe_start_thread (); 793 path = AvARRAY (rv)[1];
794 wdob = AvARRAY (rv)[0];
693 795
694 LOCK (reslock); 796 if (SvOK (wdob))
695 req = reqq_shift (&res_queue);
696
697 if (req)
698 { 797 {
699 --npending; 798 *wd = SvAIO_WD (wdob);
700 799 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
701 if (!res_queue.size)
702 {
703 /* read any signals sent by the worker threads */
704 char buf [32];
705 while (read (respipe [0], buf, 32) == 32)
706 ;
707 }
708 }
709
710 UNLOCK (reslock);
711
712 if (!req)
713 break;
714
715 --nreqs;
716
717 if (req->type == REQ_GROUP && req->length)
718 {
719 req->fd = 1; /* mark request as delayed */
720 continue;
721 } 800 }
722 else 801 else
723 { 802 *wd = EIO_INVALID_WD;
724 if (req->type == REQ_READ)
725 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
726
727 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
728 SvREADONLY_off (req->data);
729
730 if (req->statdata)
731 {
732 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
733 PL_laststatval = req->result;
734 PL_statcache = *(req->statdata);
735 }
736
737 req_invoke (req);
738
739 count++;
740 }
741
742 req_free (req);
743
744 if (maxreqs && !--maxreqs)
745 break;
746
747 if (max_poll_time)
748 {
749 gettimeofday (&tv_now, 0);
750
751 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
752 break;
753 }
754 } 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 }
755 814
756 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)));
757 break; 838 break;
758 839
759 poll_wait (); 840 default:
760 841 req->type = type_path;
761 ++maxreqs; 842 req_set_path1 (req, fh_or_path);
843 break;
762 } 844 }
763
764 return count;
765} 845}
766 846
767static void create_pipe () 847XS(boot_IO__AIO) ecb_cold;
768{
769 if (pipe (respipe))
770 croak ("unable to initialize result pipe");
771 848
772 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
773 croak ("cannot set result pipe to nonblocking mode");
774
775 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
776 croak ("cannot set result pipe to nonblocking mode");
777}
778
779/*****************************************************************************/
780/* work around various missing functions */
781
782#if !HAVE_PREADWRITE
783# define pread aio_pread
784# define pwrite aio_pwrite
785
786/*
787 * make our pread/pwrite safe against themselves, but not against
788 * normal read/write by using a mutex. slows down execution a lot,
789 * but that's your problem, not mine.
790 */
791static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
792
793static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
794{
795 ssize_t res;
796 off_t ooffset;
797
798 LOCK (preadwritelock);
799 ooffset = lseek (fd, 0, SEEK_CUR);
800 lseek (fd, offset, SEEK_SET);
801 res = read (fd, buf, count);
802 lseek (fd, ooffset, SEEK_SET);
803 UNLOCK (preadwritelock);
804
805 return res;
806}
807
808static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
809{
810 ssize_t res;
811 off_t ooffset;
812
813 LOCK (preadwritelock);
814 ooffset = lseek (fd, 0, SEEK_CUR);
815 lseek (fd, offset, SEEK_SET);
816 res = write (fd, buf, count);
817 lseek (fd, offset, SEEK_SET);
818 UNLOCK (preadwritelock);
819
820 return res;
821}
822#endif
823
824#if !HAVE_FDATASYNC
825# define fdatasync fsync
826#endif
827
828#if !HAVE_READAHEAD
829# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
830
831static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
832{
833 dBUF;
834
835 while (count > 0)
836 {
837 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
838
839 pread (fd, aio_buf, len, offset);
840 offset += len;
841 count -= len;
842 }
843
844 errno = 0;
845}
846
847#endif
848
849#if !HAVE_READDIR_R
850# define readdir_r aio_readdir_r
851
852static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
853
854static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
855{
856 struct dirent *e;
857 int errorno;
858
859 LOCK (readdirlock);
860
861 e = readdir (dirp);
862 errorno = errno;
863
864 if (e)
865 {
866 *res = ent;
867 strcpy (ent->d_name, e->d_name);
868 }
869 else
870 *res = 0;
871
872 UNLOCK (readdirlock);
873
874 errno = errorno;
875 return e ? 0 : -1;
876}
877#endif
878
879/* sendfile always needs emulation */
880static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
881{
882 ssize_t res;
883
884 if (!count)
885 return 0;
886
887#if HAVE_SENDFILE
888# if __linux
889 res = sendfile (ofd, ifd, &offset, count);
890
891# elif __freebsd
892 /*
893 * Of course, the freebsd sendfile is a dire hack with no thoughts
894 * wasted on making it similar to other I/O functions.
895 */
896 {
897 off_t sbytes;
898 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
899
900 if (res < 0 && sbytes)
901 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
902 res = sbytes;
903 }
904
905# elif __hpux
906 res = sendfile (ofd, ifd, offset, count, 0, 0);
907
908# elif __solaris
909 {
910 struct sendfilevec vec;
911 size_t sbytes;
912
913 vec.sfv_fd = ifd;
914 vec.sfv_flag = 0;
915 vec.sfv_off = offset;
916 vec.sfv_len = count;
917
918 res = sendfilev (ofd, &vec, 1, &sbytes);
919
920 if (res < 0 && sbytes)
921 res = sbytes;
922 }
923
924# endif
925#else
926 res = -1;
927 errno = ENOSYS;
928#endif
929
930 if (res < 0
931 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
932#if __solaris
933 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
934#endif
935 )
936 )
937 {
938 /* emulate sendfile. this is a major pain in the ass */
939 dBUF;
940
941 res = 0;
942
943 while (count)
944 {
945 ssize_t cnt;
946
947 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
948
949 if (cnt <= 0)
950 {
951 if (cnt && !res) res = -1;
952 break;
953 }
954
955 cnt = write (ofd, aio_buf, cnt);
956
957 if (cnt <= 0)
958 {
959 if (cnt && !res) res = -1;
960 break;
961 }
962
963 offset += cnt;
964 res += cnt;
965 count -= cnt;
966 }
967 }
968
969 return res;
970}
971
972/* read a full directory */
973static void scandir_ (aio_req req, worker *self)
974{
975 DIR *dirp;
976 union
977 {
978 struct dirent d;
979 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
980 } *u;
981 struct dirent *entp;
982 char *name, *names;
983 int memlen = 4096;
984 int memofs = 0;
985 int res = 0;
986 int errorno;
987
988 LOCK (wrklock);
989 self->dirp = dirp = opendir (req->dataptr);
990 self->dbuf = u = malloc (sizeof (*u));
991 req->data2ptr = names = malloc (memlen);
992 UNLOCK (wrklock);
993
994 if (dirp && u && names)
995 for (;;)
996 {
997 errno = 0;
998 readdir_r (dirp, &u->d, &entp);
999
1000 if (!entp)
1001 break;
1002
1003 name = entp->d_name;
1004
1005 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1006 {
1007 int len = strlen (name) + 1;
1008
1009 res++;
1010
1011 while (memofs + len > memlen)
1012 {
1013 memlen *= 2;
1014 LOCK (wrklock);
1015 req->data2ptr = names = realloc (names, memlen);
1016 UNLOCK (wrklock);
1017
1018 if (!names)
1019 break;
1020 }
1021
1022 memcpy (names + memofs, name, len);
1023 memofs += len;
1024 }
1025 }
1026
1027 if (errno)
1028 res = -1;
1029
1030 req->result = res;
1031}
1032
1033/*****************************************************************************/
1034
1035static void *aio_proc (void *thr_arg)
1036{
1037 aio_req req;
1038 struct timespec ts;
1039 worker *self = (worker *)thr_arg;
1040
1041 /* try to distribute timeouts somewhat evenly */
1042 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1043 * (1000000000UL / 1024UL);
1044
1045 for (;;)
1046 {
1047 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1048
1049 LOCK (reqlock);
1050
1051 for (;;)
1052 {
1053 self->req = req = reqq_shift (&req_queue);
1054
1055 if (req)
1056 break;
1057
1058 ++idle;
1059
1060 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1061 == ETIMEDOUT)
1062 {
1063 if (idle > max_idle)
1064 {
1065 --idle;
1066 UNLOCK (reqlock);
1067 LOCK (wrklock);
1068 --started;
1069 UNLOCK (wrklock);
1070 goto quit;
1071 }
1072
1073 /* we are allowed to idle, so do so without any timeout */
1074 pthread_cond_wait (&reqwait, &reqlock);
1075 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1076 }
1077
1078 --idle;
1079 }
1080
1081 --nready;
1082
1083 UNLOCK (reqlock);
1084
1085 errno = 0; /* strictly unnecessary */
1086
1087 if (!(req->flags & FLAG_CANCELLED))
1088 switch (req->type)
1089 {
1090 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
1091 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
1092
1093 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
1094 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
1095
1096 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
1097 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
1098 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
1099
1100 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
1101 case REQ_CLOSE: req->result = close (req->fd); break;
1102 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
1103 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
1104 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
1105 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
1106 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
1107 case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;
1108
1109 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
1110 case REQ_FSYNC: req->result = fsync (req->fd); break;
1111 case REQ_READDIR: scandir_ (req, self); break;
1112
1113 case REQ_BUSY:
1114 {
1115 struct timeval tv;
1116
1117 tv.tv_sec = req->fd;
1118 tv.tv_usec = req->fd2;
1119
1120 req->result = select (0, 0, 0, 0, &tv);
1121 }
1122
1123 case REQ_GROUP:
1124 case REQ_NOP:
1125 break;
1126
1127 case REQ_QUIT:
1128 goto quit;
1129
1130 default:
1131 req->result = ENOSYS;
1132 break;
1133 }
1134
1135 req->errorno = errno;
1136
1137 LOCK (reslock);
1138
1139 ++npending;
1140
1141 if (!reqq_push (&res_queue, req))
1142 /* write a dummy byte to the pipe so fh becomes ready */
1143 write (respipe [1], &respipe, 1);
1144
1145 self->req = 0;
1146 worker_clear (self);
1147
1148 UNLOCK (reslock);
1149 }
1150
1151quit:
1152 LOCK (wrklock);
1153 worker_free (self);
1154 UNLOCK (wrklock);
1155
1156 return 0;
1157}
1158
1159/*****************************************************************************/
1160
1161static void atfork_prepare (void)
1162{
1163 LOCK (wrklock);
1164 LOCK (reqlock);
1165 LOCK (reslock);
1166#if !HAVE_PREADWRITE
1167 LOCK (preadwritelock);
1168#endif
1169#if !HAVE_READDIR_R
1170 LOCK (readdirlock);
1171#endif
1172}
1173
1174static void atfork_parent (void)
1175{
1176#if !HAVE_READDIR_R
1177 UNLOCK (readdirlock);
1178#endif
1179#if !HAVE_PREADWRITE
1180 UNLOCK (preadwritelock);
1181#endif
1182 UNLOCK (reslock);
1183 UNLOCK (reqlock);
1184 UNLOCK (wrklock);
1185}
1186
1187static void atfork_child (void)
1188{
1189 aio_req prv;
1190
1191 while (prv = reqq_shift (&req_queue))
1192 req_free (prv);
1193
1194 while (prv = reqq_shift (&res_queue))
1195 req_free (prv);
1196
1197 while (wrk_first.next != &wrk_first)
1198 {
1199 worker *wrk = wrk_first.next;
1200
1201 if (wrk->req)
1202 req_free (wrk->req);
1203
1204 worker_clear (wrk);
1205 worker_free (wrk);
1206 }
1207
1208 started = 0;
1209 idle = 0;
1210 nreqs = 0;
1211 nready = 0;
1212 npending = 0;
1213
1214 close (respipe [0]);
1215 close (respipe [1]);
1216 create_pipe ();
1217
1218 atfork_parent ();
1219}
1220
1221#define dREQ \
1222 aio_req req; \
1223 int req_pri = next_pri; \
1224 next_pri = DEFAULT_PRI + PRI_BIAS; \
1225 \
1226 if (SvOK (callback) && !SvROK (callback)) \
1227 croak ("callback must be undef or of reference type"); \
1228 \
1229 Newz (0, req, 1, aio_cb); \
1230 if (!req) \
1231 croak ("out of memory during aio_req allocation"); \
1232 \
1233 req->callback = newSVsv (callback); \
1234 req->pri = req_pri
1235
1236#define REQ_SEND \
1237 req_send (req); \
1238 \
1239 if (GIMME_V != G_VOID) \
1240 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1241
1242MODULE = IO::AIO PACKAGE = IO::AIO 849MODULE = IO::AIO PACKAGE = IO::AIO
1243 850
1244PROTOTYPES: ENABLE 851PROTOTYPES: ENABLE
1245 852
1246BOOT: 853BOOT:
1247{ 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
1248 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);
1249 1010
1250 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1011 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1251 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1012 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1252 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1253 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1254 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1255 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1256 1013
1257 create_pipe (); 1014 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1258 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1259}
1260 1015
1016 reinit ();
1017}
1018
1261void 1019void
1020reinit ()
1021 PROTOTYPE:
1022
1023void
1262max_poll_reqs (int nreqs) 1024max_poll_reqs (unsigned int nreqs)
1263 PROTOTYPE: $ 1025 PROTOTYPE: $
1264 CODE: 1026 CODE:
1265 max_poll_reqs = nreqs; 1027 eio_set_max_poll_reqs (nreqs);
1266 1028
1267void 1029void
1268max_poll_time (double nseconds) 1030max_poll_time (double nseconds)
1269 PROTOTYPE: $ 1031 PROTOTYPE: $
1270 CODE: 1032 CODE:
1271 max_poll_time = nseconds * AIO_TICKS; 1033 eio_set_max_poll_time (nseconds);
1272 1034
1273void 1035void
1274min_parallel (int nthreads) 1036min_parallel (unsigned int nthreads)
1275 PROTOTYPE: $
1276
1277void
1278max_parallel (int nthreads)
1279 PROTOTYPE: $
1280
1281void
1282max_idle (int nthreads)
1283 PROTOTYPE: $ 1037 PROTOTYPE: $
1284 CODE: 1038 CODE:
1285 set_max_idle (nthreads); 1039 eio_set_min_parallel (nthreads);
1286 1040
1287int 1041void
1288max_outstanding (int maxreqs) 1042max_parallel (unsigned int nthreads)
1289 PROTOTYPE: $ 1043 PROTOTYPE: $
1290 CODE: 1044 CODE:
1291 RETVAL = max_outstanding; 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:
1292 max_outstanding = maxreqs; 1063 max_outstanding = maxreqs;
1293 OUTPUT:
1294 RETVAL
1295 1064
1296void 1065void
1297aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1066aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1298 SV * pathname
1299 int flags
1300 int mode
1301 SV * callback
1302 PROTOTYPE: $$$;$
1303 PPCODE: 1067 PPCODE:
1304{ 1068{
1305 dREQ; 1069 dREQ;
1306 1070
1307 req->type = REQ_OPEN; 1071 req->type = EIO_WD_OPEN;
1308 req->data = newSVsv (pathname); 1072 req_set_path1 (req, pathname);
1309 req->dataptr = SvPVbyte_nolen (req->data);
1310 req->fd = flags;
1311 req->mode = mode;
1312 1073
1313 REQ_SEND; 1074 REQ_SEND;
1314} 1075}
1315 1076
1316void 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
1317aio_close (fh,callback=&PL_sv_undef) 1092aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1318 SV * fh
1319 SV * callback
1320 PROTOTYPE: $;$
1321 ALIAS: 1093 ALIAS:
1322 aio_close = REQ_CLOSE
1323 aio_fsync = REQ_FSYNC 1094 aio_fsync = EIO_FSYNC
1324 aio_fdatasync = REQ_FDATASYNC 1095 aio_fdatasync = EIO_FDATASYNC
1096 aio_syncfs = EIO_SYNCFS
1325 PPCODE: 1097 PPCODE:
1326{ 1098{
1099 int fd = s_fileno_croak (fh, 0);
1327 dREQ; 1100 dREQ;
1328 1101
1329 req->type = ix; 1102 req->type = ix;
1330 req->fh = newSVsv (fh); 1103 req->sv1 = newSVsv (fh);
1331 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1104 req->int1 = fd;
1332 1105
1333 REQ_SEND (req); 1106 REQ_SEND;
1334} 1107}
1335 1108
1336void 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
1337aio_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)
1338 SV * fh
1339 UV offset
1340 UV length
1341 SV * data
1342 UV dataoffset
1343 SV * callback
1344 ALIAS: 1195 ALIAS:
1345 aio_read = REQ_READ 1196 aio_read = EIO_READ
1346 aio_write = REQ_WRITE 1197 aio_write = EIO_WRITE
1347 PROTOTYPE: $$$$$;$
1348 PPCODE: 1198 PPCODE:
1349{ 1199{
1350 aio_req req;
1351 STRLEN svlen; 1200 STRLEN svlen;
1201 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1352 char *svptr = SvPVbyte (data, svlen); 1202 char *svptr = SvPVbyte (data, svlen);
1353 1203 UV len = SvUV (length);
1354 SvUPGRADE (data, SVt_PV);
1355 SvPOK_on (data);
1356 1204
1357 if (dataoffset < 0) 1205 if (dataoffset < 0)
1358 dataoffset += svlen; 1206 dataoffset += svlen;
1359 1207
1360 if (dataoffset < 0 || dataoffset > svlen) 1208 if (dataoffset < 0 || dataoffset > svlen)
1361 croak ("data offset outside of string"); 1209 croak ("dataoffset outside of data scalar");
1362 1210
1363 if (ix == REQ_WRITE) 1211 if (ix == EIO_WRITE)
1364 { 1212 {
1365 /* write: check length and adjust. */ 1213 /* write: check length and adjust. */
1366 if (length < 0 || length + dataoffset > svlen) 1214 if (!SvOK (length) || len + dataoffset > svlen)
1367 length = svlen - dataoffset; 1215 len = svlen - dataoffset;
1368 } 1216 }
1369 else 1217 else
1370 { 1218 {
1371 /* 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))
1372 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");
1373 } 1225 }
1374
1375 if (length < 0)
1376 croak ("length must not be negative");
1377 1226
1378 { 1227 {
1379 dREQ; 1228 dREQ;
1380 1229
1381 req->type = ix; 1230 req->type = ix;
1382 req->fh = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1383 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1232 req->int1 = fd;
1384 : IoOFP (sv_2io (fh))); 1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1385 req->offset = offset; 1234 req->size = len;
1386 req->length = length;
1387 req->data = SvREFCNT_inc (data); 1235 req->sv2 = SvREFCNT_inc (data);
1388 req->dataptr = (char *)svptr + dataoffset; 1236 req->ptr2 = (char *)svptr + dataoffset;
1237 req->stroffset = dataoffset;
1389 1238
1390 if (!SvREADONLY (data)) 1239 if (!SvREADONLY (data))
1391 { 1240 {
1392 SvREADONLY_on (data); 1241 SvREADONLY_on (data);
1393 req->data2ptr = (void *)data; 1242 req->flags |= FLAG_SV2_RO_OFF;
1394 } 1243 }
1395 1244
1396 REQ_SEND; 1245 REQ_SEND;
1397 } 1246 }
1398} 1247}
1399 1248
1400void 1249void
1401aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1402 SV * out_fh 1251 ALIAS:
1403 SV * in_fh 1252 aio_readlink = EIO_READLINK
1404 UV in_offset 1253 aio_realpath = EIO_REALPATH
1405 UV length
1406 SV * callback
1407 PROTOTYPE: $$$$;$
1408 PPCODE: 1254 PPCODE:
1409{ 1255{
1256 dREQ;
1257
1258 req->type = ix;
1259 req_set_path1 (req, pathname);
1260
1261 REQ_SEND;
1262}
1263
1264void
1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1266 PPCODE:
1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1410 dREQ; 1270 dREQ;
1411 1271
1412 req->type = REQ_SENDFILE; 1272 req->type = EIO_SENDFILE;
1413 req->fh = newSVsv (out_fh); 1273 req->sv1 = newSVsv (out_fh);
1414 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1274 req->int1 = ofd;
1415 req->fh2 = newSVsv (in_fh); 1275 req->sv2 = newSVsv (in_fh);
1416 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1276 req->int2 = ifd;
1417 req->offset = in_offset; 1277 req->offs = in_offset;
1418 req->length = length; 1278 req->size = length;
1419 1279
1420 REQ_SEND; 1280 REQ_SEND;
1421} 1281}
1422 1282
1423void 1283void
1424aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1425 SV * fh
1426 UV offset
1427 IV length
1428 SV * callback
1429 PROTOTYPE: $$$;$
1430 PPCODE: 1285 PPCODE:
1431{ 1286{
1287 int fd = s_fileno_croak (fh, 0);
1432 dREQ; 1288 dREQ;
1433 1289
1434 req->type = REQ_READAHEAD; 1290 req->type = EIO_READAHEAD;
1435 req->fh = newSVsv (fh); 1291 req->sv1 = newSVsv (fh);
1436 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1292 req->int1 = fd;
1437 req->offset = offset; 1293 req->offs = offset;
1438 req->length = length; 1294 req->size = length;
1439 1295
1440 REQ_SEND; 1296 REQ_SEND;
1441} 1297}
1442 1298
1443void 1299void
1444aio_stat (fh_or_path,callback=&PL_sv_undef) 1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1445 SV * fh_or_path
1446 SV * callback
1447 ALIAS: 1301 ALIAS:
1448 aio_stat = REQ_STAT 1302 aio_stat = EIO_STAT
1449 aio_lstat = REQ_LSTAT 1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1450 PPCODE: 1305 PPCODE:
1451{ 1306{
1452 dREQ; 1307 dREQ;
1453 1308
1454 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);
1455 if (!req->statdata)
1456 {
1457 req_free (req);
1458 croak ("out of memory during aio_req->statdata allocation");
1459 }
1460
1461 if (SvPOK (fh_or_path))
1462 {
1463 req->type = ix;
1464 req->data = newSVsv (fh_or_path);
1465 req->dataptr = SvPVbyte_nolen (req->data);
1466 }
1467 else
1468 {
1469 req->type = REQ_FSTAT;
1470 req->fh = newSVsv (fh_or_path);
1471 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1472 }
1473 1310
1474 REQ_SEND; 1311 REQ_SEND;
1475} 1312}
1476 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
1477void 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
1478aio_unlink (pathname,callback=&PL_sv_undef) 1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1479 SV * pathname
1480 SV * callback
1481 ALIAS: 1412 ALIAS:
1482 aio_unlink = REQ_UNLINK 1413 aio_unlink = EIO_UNLINK
1483 aio_rmdir = REQ_RMDIR 1414 aio_rmdir = EIO_RMDIR
1484 aio_readdir = REQ_READDIR 1415 aio_readdir = EIO_READDIR
1485 PPCODE: 1416 PPCODE:
1486{ 1417{
1487 dREQ; 1418 dREQ;
1488 1419
1489 req->type = ix; 1420 req->type = ix;
1490 req->data = newSVsv (pathname); 1421 req_set_path1 (req, pathname);
1491 req->dataptr = SvPVbyte_nolen (req->data); 1422
1492
1493 REQ_SEND; 1423 REQ_SEND;
1494} 1424}
1495 1425
1496void 1426void
1497aio_link (oldpath,newpath,callback=&PL_sv_undef) 1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1498 SV * oldpath
1499 SV * newpath
1500 SV * callback
1501 ALIAS: 1428 ALIAS:
1502 aio_link = REQ_LINK 1429 aio_link = EIO_LINK
1503 aio_symlink = REQ_SYMLINK 1430 aio_symlink = EIO_SYMLINK
1504 aio_rename = REQ_RENAME 1431 aio_rename = EIO_RENAME
1505 PPCODE: 1432 PPCODE:
1506{ 1433{
1434 eio_wd wd2 = 0;
1507 dREQ; 1435 dREQ;
1508 1436
1509 req->type = ix; 1437 req->type = ix;
1510 req->fh = newSVsv (oldpath); 1438 req_set_path1 (req, oldpath);
1511 req->data2ptr = SvPVbyte_nolen (req->fh); 1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1512 req->data = newSVsv (newpath); 1440 req->int3 = (long)wd2;
1513 req->dataptr = SvPVbyte_nolen (req->data);
1514 1441
1515 REQ_SEND; 1442 REQ_SEND;
1516} 1443}
1517 1444
1518void 1445void
1519aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1520 SV * pathname
1521 SV * callback
1522 UV mode
1523 UV dev
1524 PPCODE: 1447 PPCODE:
1525{ 1448{
1526 dREQ; 1449 dREQ;
1527 1450
1528 req->type = REQ_MKNOD; 1451 req->type = EIO_MKNOD;
1529 req->data = newSVsv (pathname);
1530 req->dataptr = SvPVbyte_nolen (req->data);
1531 req->mode = (mode_t)mode; 1452 req->int2 = (mode_t)mode;
1532 req->offset = dev; 1453 req->offs = dev;
1454 req_set_path1 (req, pathname);
1533 1455
1534 REQ_SEND; 1456 REQ_SEND;
1535} 1457}
1536 1458
1537void 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
1538aio_busy (delay,callback=&PL_sv_undef) 1557aio_busy (double delay, SV *callback=&PL_sv_undef)
1539 double delay
1540 SV * callback
1541 PPCODE: 1558 PPCODE:
1542{ 1559{
1543 dREQ; 1560 dREQ;
1544 1561
1545 req->type = REQ_BUSY; 1562 req->type = EIO_BUSY;
1546 req->fd = delay < 0. ? 0 : delay; 1563 req->nv1 = delay < 0. ? 0. : delay;
1547 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1548 1564
1549 REQ_SEND; 1565 REQ_SEND;
1550} 1566}
1551 1567
1552void 1568void
1553aio_group (callback=&PL_sv_undef) 1569aio_group (SV *callback=&PL_sv_undef)
1554 SV * callback
1555 PROTOTYPE: ;$
1556 PPCODE: 1570 PPCODE:
1557{ 1571{
1558 dREQ; 1572 dREQ;
1559 1573
1560 req->type = REQ_GROUP; 1574 req->type = EIO_GROUP;
1575
1561 req_send (req); 1576 req_submit (req);
1562
1563 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1577 XPUSHs (req_sv (req, aio_grp_stash));
1564} 1578}
1565 1579
1566void 1580void
1567aio_nop (callback=&PL_sv_undef) 1581aio_nop (SV *callback=&PL_sv_undef)
1568 SV * callback 1582 ALIAS:
1583 aio_nop = EIO_NOP
1584 aio_sync = EIO_SYNC
1569 PPCODE: 1585 PPCODE:
1570{ 1586{
1571 dREQ; 1587 dREQ;
1572 1588
1573 req->type = REQ_NOP; 1589 req->type = ix;
1574 1590
1575 REQ_SEND; 1591 REQ_SEND;
1576} 1592}
1577 1593
1578int 1594int
1579aioreq_pri (int pri = 0) 1595aioreq_pri (int pri = 0)
1580 PROTOTYPE: ;$
1581 CODE: 1596 CODE:
1582 RETVAL = next_pri - PRI_BIAS; 1597 RETVAL = next_pri;
1583 if (items > 0) 1598 if (items > 0)
1584 { 1599 {
1585 if (pri < PRI_MIN) pri = PRI_MIN; 1600 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1586 if (pri > PRI_MAX) pri = PRI_MAX; 1601 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1587 next_pri = pri + PRI_BIAS; 1602 next_pri = pri;
1588 } 1603 }
1589 OUTPUT: 1604 OUTPUT:
1590 RETVAL 1605 RETVAL
1591 1606
1592void 1607void
1593aioreq_nice (int nice = 0) 1608aioreq_nice (int nice = 0)
1594 CODE: 1609 CODE:
1595 nice = next_pri - nice; 1610 nice = next_pri - nice;
1596 if (nice < PRI_MIN) nice = PRI_MIN; 1611 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1597 if (nice > PRI_MAX) nice = PRI_MAX; 1612 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1598 next_pri = nice + PRI_BIAS; 1613 next_pri = nice;
1599 1614
1600void 1615void
1601flush () 1616flush ()
1602 PROTOTYPE:
1603 CODE: 1617 CODE:
1604 while (nreqs) 1618 while (eio_nreqs ())
1605 { 1619 {
1606 poll_wait (); 1620 poll_wait ();
1607 poll_cb (0); 1621 poll_cb ();
1608 } 1622 }
1609 1623
1610void 1624int
1611poll() 1625poll ()
1612 PROTOTYPE:
1613 CODE: 1626 CODE:
1614 if (nreqs)
1615 {
1616 poll_wait (); 1627 poll_wait ();
1617 poll_cb (0); 1628 RETVAL = poll_cb ();
1618 }
1619
1620int
1621poll_fileno()
1622 PROTOTYPE:
1623 CODE:
1624 RETVAL = respipe [0];
1625 OUTPUT: 1629 OUTPUT:
1626 RETVAL 1630 RETVAL
1627 1631
1628int 1632int
1633poll_fileno ()
1634 CODE:
1635 RETVAL = s_epipe_fd (&respipe);
1636 OUTPUT:
1637 RETVAL
1638
1639int
1629poll_cb(...) 1640poll_cb (...)
1630 PROTOTYPE: 1641 PROTOTYPE:
1631 CODE: 1642 CODE:
1632 RETVAL = poll_cb (); 1643 RETVAL = poll_cb ();
1633 OUTPUT: 1644 OUTPUT:
1634 RETVAL 1645 RETVAL
1635 1646
1636void 1647void
1637poll_wait() 1648poll_wait ()
1638 PROTOTYPE:
1639 CODE: 1649 CODE:
1640 if (nreqs)
1641 poll_wait (); 1650 poll_wait ();
1642 1651
1643int 1652int
1644nreqs() 1653nreqs ()
1645 PROTOTYPE:
1646 CODE: 1654 CODE:
1647 RETVAL = nreqs; 1655 RETVAL = eio_nreqs ();
1648 OUTPUT: 1656 OUTPUT:
1649 RETVAL 1657 RETVAL
1650 1658
1651int 1659int
1652nready() 1660nready ()
1653 PROTOTYPE:
1654 CODE: 1661 CODE:
1655 RETVAL = get_nready (); 1662 RETVAL = eio_nready ();
1656 OUTPUT: 1663 OUTPUT:
1657 RETVAL 1664 RETVAL
1658 1665
1659int 1666int
1660npending() 1667npending ()
1661 PROTOTYPE:
1662 CODE: 1668 CODE:
1663 RETVAL = get_npending (); 1669 RETVAL = eio_npending ();
1664 OUTPUT: 1670 OUTPUT:
1665 RETVAL 1671 RETVAL
1666 1672
1667int 1673int
1668nthreads() 1674nthreads ()
1669 PROTOTYPE:
1670 CODE: 1675 CODE:
1671 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1676 RETVAL = eio_nthreads ();
1672 RETVAL = started;
1673 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1674 OUTPUT: 1677 OUTPUT:
1675 RETVAL 1678 RETVAL
1676 1679
1680int
1681fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
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)
1728 CODE:
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}
1759 OUTPUT:
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;
1834
1677PROTOTYPES: 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}
1678 1864
1679MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1865MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1680 1866
1681void 1867void
1682cancel (aio_req_ornot req) 1868cancel (aio_req_ornot req)
1683 CODE: 1869 CODE:
1684 req_cancel (req); 1870 eio_cancel (req);
1685 1871
1686void 1872void
1687cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1873cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1688 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
1689 SvREFCNT_dec (req->callback); 1883 SvREFCNT_dec (req->callback);
1690 req->callback = newSVsv (callback); 1884 req->callback = SvREFCNT_inc (cb_cv);
1885 }
1886}
1691 1887
1692MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1888MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1693 1889
1694void 1890void
1695add (aio_req grp, ...) 1891add (aio_req grp, ...)
1696 PPCODE: 1892 PPCODE:
1697{ 1893{
1698 int i; 1894 int i;
1699 aio_req req;
1700 1895
1701 if (grp->fd == 2) 1896 if (grp->int1 == 2)
1702 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");
1703 1898
1704 for (i = 1; i < items; ++i ) 1899 for (i = 1; i < items; ++i )
1705 { 1900 {
1901 aio_req req;
1902
1706 if (GIMME_V != G_VOID) 1903 if (GIMME_V != G_VOID)
1707 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1904 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1708 1905
1709 req = SvAIO_REQ (ST (i)); 1906 req = SvAIO_REQ (ST (i));
1710 1907
1711 if (req) 1908 if (req)
1712 { 1909 eio_grp_add (grp, req);
1713 ++grp->length;
1714 req->grp = grp;
1715
1716 req->grp_prev = 0;
1717 req->grp_next = grp->grp_first;
1718
1719 if (grp->grp_first)
1720 grp->grp_first->grp_prev = req;
1721
1722 grp->grp_first = req;
1723 }
1724 } 1910 }
1725} 1911}
1726 1912
1727void 1913void
1728cancel_subs (aio_req_ornot req) 1914cancel_subs (aio_req_ornot req)
… …
1737 AV *av; 1923 AV *av;
1738 1924
1739 grp->errorno = errno; 1925 grp->errorno = errno;
1740 1926
1741 av = newAV (); 1927 av = newAV ();
1928 av_extend (av, items - 1);
1742 1929
1743 for (i = 1; i < items; ++i ) 1930 for (i = 1; i < items; ++i )
1744 av_push (av, newSVsv (ST (i))); 1931 av_push (av, newSVsv (ST (i)));
1745 1932
1746 SvREFCNT_dec (grp->data); 1933 SvREFCNT_dec (grp->sv1);
1747 grp->data = (SV *)av; 1934 grp->sv1 = (SV *)av;
1748} 1935}
1749 1936
1750void 1937void
1751errno (aio_req grp, int errorno = errno) 1938errno (aio_req grp, int errorno = errno)
1752 CODE: 1939 CODE:
1753 grp->errorno = errorno; 1940 grp->errorno = errorno;
1754 1941
1755void 1942void
1756limit (aio_req grp, int limit) 1943limit (aio_req grp, int limit)
1757 CODE: 1944 CODE:
1758 grp->fd2 = limit; 1945 eio_grp_limit (grp, limit);
1759 aio_grp_feed (grp);
1760 1946
1761void 1947void
1762feed (aio_req grp, SV *callback=&PL_sv_undef) 1948feed (aio_req grp, SV *callback=&PL_sv_undef)
1763 CODE: 1949 CODE:
1764{ 1950{
1765 SvREFCNT_dec (grp->fh2); 1951 SvREFCNT_dec (grp->sv2);
1766 grp->fh2 = newSVsv (callback); 1952 grp->sv2 = newSVsv (callback);
1953 grp->feed = aio_grp_feed;
1767 1954
1768 if (grp->fd2 <= 0) 1955 if (grp->int2 <= 0)
1769 grp->fd2 = 2; 1956 grp->int2 = 2;
1770 1957
1771 aio_grp_feed (grp); 1958 eio_grp_limit (grp, grp->int2);
1772} 1959}
1773 1960

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