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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 1.219 by root, Fri Jul 27 18:43:25 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 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (fiemap->fm_mapped_extents < count)
200 /* either autosizing succeeded,
201 * or the file had no extents
202 * or we luckily had enough space */
203 break;
204
205 /* some kernels overwrite fm_length, so just reset everything */
206 fiemap->fm_start = req->offs;
207 fiemap->fm_length = req->size;
208 fiemap->fm_flags = req->int2;
209 fiemap->fm_extent_count = 0;
210
211 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212 return;
213
214 /* to work around a kernel bug, we allocate one more */
215 count = fiemap->fm_mapped_extents + 1;
216
217 free (fiemap);
218 }
219
220 req->result = 0;
221
65#else 222#else
66# define STACKSIZE 16384 223 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 224#endif
79#endif 225}
80 226
81/* buffer size for various temporary buffers */ 227/*****************************************************************************/
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;
91 228
92enum { 229enum {
93 REQ_QUIT, 230 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}; 231};
105 232
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; 233typedef eio_req *aio_req;
139typedef aio_cb *aio_req_ornot; 234typedef eio_req *aio_req_ornot;
235typedef eio_wd aio_wd;
140 236
141enum { 237static SV *on_next_submit;
142 PRI_MIN = -4, 238static int next_pri = EIO_PRI_DEFAULT;
143 PRI_MAX = 4, 239static int max_outstanding;
144 240
145 DEFAULT_PRI = 0, 241static s_epipe respipe;
146 PRI_BIAS = -PRI_MIN,
147 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148};
149 242
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); 243static void req_destroy (aio_req req);
324static void req_cancel (aio_req req); 244static void req_cancel (aio_req req);
325 245
246static void
247want_poll (void)
248{
249 /* write a dummy byte to the pipe so fh becomes ready */
250 s_epipe_signal (&respipe);
251}
252
253static void
254done_poll (void)
255{
256 /* read any signals sent by the worker threads */
257 s_epipe_drain (&respipe);
258}
259
326/* must be called at most once */ 260/* must be called at most once */
327static SV *req_sv (aio_req req, const char *klass) 261static SV *
262req_sv (aio_req req, HV *stash)
328{ 263{
329 if (!req->self) 264 if (!req->self)
330 { 265 {
331 req->self = (SV *)newHV (); 266 req->self = (SV *)newHV ();
332 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 267 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
333 } 268 }
334 269
335 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 270 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
336} 271}
337 272
338static aio_req SvAIO_REQ (SV *sv) 273static SV *
274newSVaio_wd (aio_wd wd)
275{
276 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
277}
278
279static aio_req
280SvAIO_REQ (SV *sv)
339{ 281{
340 MAGIC *mg; 282 MAGIC *mg;
341 283
342 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 284 if (!SvROK (sv)
285 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
286 || (SvSTASH (SvRV (sv)) != aio_grp_stash
287 && SvSTASH (SvRV (sv)) != aio_req_stash
288 && !sv_derived_from (sv, "IO::AIO::REQ")))
343 croak ("object of class " AIO_REQ_KLASS " expected"); 289 croak ("object of class IO::AIO::REQ expected");
344 290
345 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 291 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
346 292
347 return mg ? (aio_req)mg->mg_ptr : 0; 293 return mg ? (aio_req)mg->mg_ptr : 0;
348} 294}
349 295
296static aio_wd
297SvAIO_WD (SV *sv)
298{
299 if (!SvROK (sv)
300 || SvTYPE (SvRV (sv)) != SVt_PVMG
301 || SvSTASH (SvRV (sv)) != aio_wd_stash)
302 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
303
304 return (aio_wd)(long)SvIVX (SvRV (sv));
305}
306
307static void
350static void aio_grp_feed (aio_req grp) 308aio_grp_feed (aio_req grp)
351{ 309{
352 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 310 if (grp->sv2 && SvOK (grp->sv2))
353 { 311 {
354 int old_len = grp->length;
355
356 if (grp->fh2 && SvOK (grp->fh2))
357 {
358 dSP; 312 dSP;
359 313
360 ENTER; 314 ENTER;
361 SAVETMPS; 315 SAVETMPS;
362 PUSHMARK (SP); 316 PUSHMARK (SP);
363 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 317 XPUSHs (req_sv (grp, aio_grp_stash));
364 PUTBACK; 318 PUTBACK;
365 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 319 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
366 SPAGAIN; 320 SPAGAIN;
367 FREETMPS; 321 FREETMPS;
368 LEAVE; 322 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 } 323 }
379} 324}
380 325
381static void aio_grp_dec (aio_req grp) 326static void
327req_submit (eio_req *req)
382{ 328{
383 --grp->length; 329 eio_submit (req);
384 330
385 /* call feeder, if applicable */ 331 if (expect_false (on_next_submit))
386 aio_grp_feed (grp);
387
388 /* finish, if done */
389 if (!grp->length && grp->fd)
390 { 332 {
391 req_invoke (grp); 333 dSP;
392 req_free (grp); 334 SV *cb = sv_2mortal (on_next_submit);
335
336 on_next_submit = 0;
337
338 PUSHMARK (SP);
339 PUTBACK;
340 call_sv (cb, G_DISCARD | G_EVAL);
393 } 341 }
394} 342}
395 343
344static int
396static void req_invoke (aio_req req) 345req_invoke (eio_req *req)
397{ 346{
398 dSP; 347 if (req->flags & FLAG_SV2_RO_OFF)
348 SvREADONLY_off (req->sv2);
399 349
400 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 350 if (!EIO_CANCELLED (req) && req->callback)
401 { 351 {
352 dSP;
353 static SV *sv_result_cache; /* caches the result integer SV */
354 SV *sv_result;
355
402 ENTER; 356 ENTER;
403 SAVETMPS; 357 SAVETMPS;
404 PUSHMARK (SP); 358 PUSHMARK (SP);
405 EXTEND (SP, 1); 359 EXTEND (SP, 1);
406 360
361 /* do not recreate the result IV from scratch each time */
362 if (expect_true (sv_result_cache))
363 {
364 sv_result = sv_result_cache; sv_result_cache = 0;
365 SvIV_set (sv_result, req->result);
366 SvIOK_only (sv_result);
367 }
368 else
369 {
370 sv_result = newSViv (req->result);
371 SvREADONLY_on (sv_result);
372 }
373
407 switch (req->type) 374 switch (req->type)
408 { 375 {
376 case EIO_WD_OPEN:
377 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
378 break;
379
409 case REQ_READDIR: 380 case EIO_READDIR:
410 { 381 {
411 SV *rv = &PL_sv_undef; 382 SV *rv = &PL_sv_undef;
412 383
413 if (req->result >= 0) 384 if (req->result >= 0)
414 { 385 {
415 int i; 386 int i;
416 char *buf = req->data2ptr; 387 char *names = (char *)req->ptr2;
388 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
417 AV *av = newAV (); 389 AV *av = newAV ();
418 390
419 av_extend (av, req->result - 1); 391 av_extend (av, req->result - 1);
420 392
421 for (i = 0; i < req->result; ++i) 393 for (i = 0; i < req->result; ++i)
422 { 394 {
423 SV *sv = newSVpv (buf, 0); 395 if (req->int1 & EIO_READDIR_DENTS)
396 {
397 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
424 398
399 if (req->int1 & EIO_READDIR_CUSTOM2)
400 {
401 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
402 AV *avent = newAV ();
403
404 av_extend (avent, 2);
405
406 if (!sv_type [ent->type])
407 {
408 sv_type [ent->type] = newSViv (ent->type);
409 SvREADONLY_on (sv_type [ent->type]);
410 }
411
412 av_store (avent, 0, namesv);
413 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
414 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
415
416 av_store (av, i, newRV_noinc ((SV *)avent));
417 }
418 else
425 av_store (av, i, sv); 419 av_store (av, i, namesv);
420
421 ++ent;
422 }
423 else
424 {
425 SV *name = newSVpv (names, 0);
426 av_store (av, i, name);
426 buf += SvCUR (sv) + 1; 427 names += SvCUR (name) + 1;
428 }
427 } 429 }
428 430
429 rv = sv_2mortal (newRV_noinc ((SV *)av)); 431 rv = sv_2mortal (newRV_noinc ((SV *)av));
430 } 432 }
431 433
432 PUSHs (rv); 434 PUSHs (rv);
435
436 if (req->int1 & EIO_READDIR_CUSTOM1)
437 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
433 } 438 }
434 break; 439 break;
435 440
436 case REQ_OPEN: 441 case EIO_OPEN:
437 { 442 {
438 /* convert fd to fh */ 443 /* convert fd to fh */
439 SV *fh; 444 SV *fh = &PL_sv_undef;
440 445
441 PUSHs (sv_2mortal (newSViv (req->result))); 446 if (req->result >= 0)
442 PUTBACK; 447 {
443 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 448 GV *gv = (GV *)sv_newmortal ();
444 SPAGAIN; 449 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
450 char sym [64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
454 gv_init (gv, aio_stash, sym, symlen, 0);
445 455
446 fh = SvREFCNT_inc (POPs); 456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 (int)req->result
462 );
447 463
464 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
465 fh = (SV *)gv;
466 }
467
448 PUSHMARK (SP); 468 PUSHs (fh);
449 XPUSHs (sv_2mortal (fh));
450 } 469 }
451 break; 470 break;
452 471
472 case EIO_STATVFS:
473 case EIO_FSTATVFS:
474 {
475 SV *rv = &PL_sv_undef;
476
477#ifndef _WIN32
478 if (req->result >= 0)
479 {
480 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
481 HV *hv = newHV ();
482
483 rv = sv_2mortal (newRV_noinc ((SV *)hv));
484
485 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
486 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
487 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
488 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
489 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
490 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
491 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
492 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
493 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
494 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
495 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
496 }
497#endif
498
499 PUSHs (rv);
500 }
501
502 break;
503
453 case REQ_GROUP: 504 case EIO_GROUP:
454 req->fd = 2; /* mark group as finished */ 505 req->int1 = 2; /* mark group as finished */
455 506
456 if (req->data) 507 if (req->sv1)
457 { 508 {
458 int i; 509 int i;
459 AV *av = (AV *)req->data; 510 AV *av = (AV *)req->sv1;
460 511
461 EXTEND (SP, AvFILL (av) + 1); 512 EXTEND (SP, AvFILL (av) + 1);
462 for (i = 0; i <= AvFILL (av); ++i) 513 for (i = 0; i <= AvFILL (av); ++i)
463 PUSHs (*av_fetch (av, i, 0)); 514 PUSHs (*av_fetch (av, i, 0));
464 } 515 }
465 break; 516 break;
466 517
467 case REQ_NOP: 518 case EIO_NOP:
468 case REQ_BUSY: 519 case EIO_BUSY:
469 break; 520 break;
470 521
522 case EIO_READLINK:
523 case EIO_REALPATH:
524 if (req->result > 0)
525 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
526 break;
527
528 case EIO_STAT:
529 case EIO_LSTAT:
530 case EIO_FSTAT:
531 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
532
533 if (!(PL_laststatval = req->result))
534 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
535 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
536
537 PUSHs (sv_result);
538 break;
539
540 case EIO_SEEK:
541 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
542 break;
543
544 case EIO_READ:
545 {
546 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
547 *SvEND (req->sv2) = 0;
548 SvPOK_only (req->sv2);
549 SvSETMAGIC (req->sv2);
550 PUSHs (sv_result);
551 }
552 break;
553
554 case EIO_CUSTOM:
555 if (req->feed == fiemap)
556 {
557#if HAVE_FIEMAP
558 if (!req->result)
559 {
560 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
561
562 if (fiemap->fm_extent_count)
563 {
564 AV *av = newAV ();
565 int i;
566
567 while (fiemap->fm_mapped_extents)
568 {
569 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
570 AV *ext_av = newAV ();
571
572 av_store (ext_av, 3, newSVuv (extent->fe_flags));
573 av_store (ext_av, 2, newSVval64 (extent->fe_length));
574 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
575 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
576
577 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
578 }
579
580 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
581 }
582 else
583 {
584 SvIV_set (sv_result, fiemap->fm_mapped_extents);
585 PUSHs (sv_result);
586 }
587 }
588#endif
589 }
590 else
591 PUSHs (sv_result);
592 break;
593
594 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
595 if (req->result > 0)
596 SvIV_set (sv_result, 0);
597 /* FALLTHROUGH */
598
471 default: 599 default:
472 PUSHs (sv_2mortal (newSViv (req->result))); 600 PUSHs (sv_result);
473 break; 601 break;
474 } 602 }
475 603
476 errno = req->errorno; 604 errno = req->errorno;
477 605
478 PUTBACK; 606 PUTBACK;
479 call_sv (req->callback, G_VOID | G_EVAL); 607 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
480 SPAGAIN; 608 SPAGAIN;
609
610 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
611 SvREFCNT_dec (sv_result);
612 else
613 sv_result_cache = sv_result;
481 614
482 FREETMPS; 615 FREETMPS;
483 LEAVE; 616 LEAVE;
617
618 PUTBACK;
484 } 619 }
485 620
486 if (req->grp) 621 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} 622}
506 623
507static void req_free (aio_req req) 624static void
625req_destroy (aio_req req)
508{ 626{
509 if (req->self) 627 if (req->self)
510 { 628 {
511 sv_unmagic (req->self, PERL_MAGIC_ext); 629 sv_unmagic (req->self, PERL_MAGIC_ext);
512 SvREFCNT_dec (req->self); 630 SvREFCNT_dec (req->self);
513 } 631 }
514 632
515 SvREFCNT_dec (req->data);
516 SvREFCNT_dec (req->fh); 633 SvREFCNT_dec (req->sv1);
517 SvREFCNT_dec (req->fh2); 634 SvREFCNT_dec (req->sv2);
635 SvREFCNT_dec (req->sv3);
636 SvREFCNT_dec (req->sv4);
518 SvREFCNT_dec (req->callback); 637 SvREFCNT_dec (req->callback);
519 Safefree (req->statdata);
520 638
521 if (req->type == REQ_READDIR)
522 free (req->data2ptr);
523
524 Safefree (req); 639 free (req);
525} 640}
526 641
642static void
527static void req_cancel_subs (aio_req grp) 643req_cancel_subs (aio_req grp)
528{ 644{
529 aio_req sub;
530
531 if (grp->type != REQ_GROUP) 645 if (grp->type != EIO_GROUP)
532 return; 646 return;
533 647
534 SvREFCNT_dec (grp->fh2); 648 SvREFCNT_dec (grp->sv2);
535 grp->fh2 = 0; 649 grp->sv2 = 0;
536 650
537 for (sub = grp->grp_first; sub; sub = sub->grp_next) 651 eio_grp_cancel (grp);
538 req_cancel (sub);
539} 652}
540 653
541static void req_cancel (aio_req req) 654static void ecb_cold
655create_respipe (void)
542{ 656{
543 req->flags |= FLAG_CANCELLED; 657 if (s_epipe_renew (&respipe))
544 658 croak ("IO::AIO: unable to initialize result pipe");
545 req_cancel_subs (req);
546} 659}
547 660
548static void *aio_proc(void *arg); 661static void
549 662poll_wait (void)
550static void start_thread (void)
551{ 663{
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) 664 while (eio_nreqs ())
658 { 665 {
659 int size; 666 int size;
660 if (WORDACCESS_UNSAFE) LOCK (reslock); 667
668 X_LOCK (reslock);
661 size = res_queue.size; 669 size = res_queue.size;
662 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 670 X_UNLOCK (reslock);
663 671
664 if (size) 672 if (size)
665 return; 673 return;
666 674
667 maybe_start_thread (); 675 etp_maybe_start_thread ();
668 676
669 FD_ZERO(&rfd); 677 s_epipe_wait (&respipe);
670 FD_SET(respipe [0], &rfd);
671
672 select (respipe [0] + 1, &rfd, 0, 0, 0);
673 } 678 }
674} 679}
675 680
676static int poll_cb () 681static int
682poll_cb (void)
677{ 683{
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 (;;) 684 for (;;)
689 { 685 {
690 for (;;) 686 int res = eio_poll ();
687
688 if (res > 0)
689 croak (0);
690
691 if (!max_outstanding || max_outstanding > eio_nreqs ())
692 return res;
693
694 poll_wait ();
695 }
696}
697
698static void ecb_cold
699reinit (void)
700{
701 create_respipe ();
702
703 if (eio_init (want_poll, done_poll) < 0)
704 croak ("IO::AIO: unable to initialise eio library");
705}
706
707/*****************************************************************************/
708
709#if !_POSIX_MAPPED_FILES
710# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
711# define munmap(addr,length) EIO_ENOSYS ()
712#endif
713
714#if !_POSIX_MEMORY_PROTECTION
715# define mprotect(addr,len,prot) EIO_ENOSYS ()
716# define PROT_NONE 0
717# define PROT_WRITE 0
718# define MAP_PRIVATE 0
719# define MAP_SHARED 0
720# define MAP_FIXED 0
721#endif
722
723#define MMAP_MAGIC PERL_MAGIC_ext
724
725static int ecb_cold
726mmap_free (pTHX_ SV *sv, MAGIC *mg)
727{
728 int old_errno = errno;
729 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
730 errno = old_errno;
731
732 mg->mg_obj = 0; /* just in case */
733
734 SvREADONLY_off (sv);
735
736 if (SvPVX (sv) != mg->mg_ptr)
737 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
738
739 SvCUR_set (sv, 0);
740 SvPVX (sv) = 0;
741 SvOK_off (sv);
742
743 return 0;
744}
745
746static MGVTBL mmap_vtbl = {
747 0, 0, 0, 0, mmap_free
748};
749
750/*****************************************************************************/
751
752static SV *
753get_cb (SV *cb_sv)
754{
755 SvGETMAGIC (cb_sv);
756 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
757}
758
759static aio_req ecb_noinline
760dreq (SV *callback)
761{
762 SV *cb_cv;
763 aio_req req;
764 int req_pri = next_pri;
765 next_pri = EIO_PRI_DEFAULT;
766
767 cb_cv = get_cb (callback);
768
769 req = calloc (sizeof (*req), 1);
770 if (!req)
771 croak ("out of memory during eio_req allocation");
772
773 req->callback = SvREFCNT_inc (cb_cv);
774 req->pri = req_pri;
775
776 return req;
777}
778
779#define dREQ \
780 aio_req req = dreq (callback); \
781
782#define REQ_SEND \
783 PUTBACK; \
784 req_submit (req); \
785 SPAGAIN; \
786 \
787 if (GIMME_V != G_VOID) \
788 XPUSHs (req_sv (req, aio_req_stash));
789
790ecb_inline void
791req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
792{
793 if (expect_false (SvROK (path)))
794 {
795 SV *rv = SvRV (path);
796 SV *wdob;
797
798 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
691 { 799 {
692 maybe_start_thread (); 800 path = AvARRAY (rv)[1];
801 wdob = AvARRAY (rv)[0];
693 802
694 LOCK (reslock); 803 if (SvOK (wdob))
695 req = reqq_shift (&res_queue);
696
697 if (req)
698 { 804 {
699 --npending; 805 *wd = SvAIO_WD (wdob);
700 806 *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 } 807 }
722 else 808 else
723 { 809 *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 } 810 }
811 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
812 {
813 *wd = (aio_wd)(long)SvIVX (rv);
814 *wdsv = SvREFCNT_inc_NN (rv);
815 *ptr = ".";
816 return; /* path set to "." */
817 }
818 else
819 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
820 }
755 821
756 if (nreqs <= max_outstanding) 822 *pathsv = newSVsv (path);
823 *ptr = SvPVbyte_nolen (*pathsv);
824}
825
826static void ecb_noinline
827req_set_path1 (aio_req req, SV *path)
828{
829 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
830}
831
832static void ecb_noinline
833req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
834{
835 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
836
837 switch (SvTYPE (rv))
838 {
839 case SVt_PVIO:
840 case SVt_PVLV:
841 case SVt_PVGV:
842 req->type = type_fh;
843 req->sv1 = newSVsv (fh_or_path);
844 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
757 break; 845 break;
758 846
759 poll_wait (); 847 default:
760 848 req->type = type_path;
761 ++maxreqs; 849 req_set_path1 (req, fh_or_path);
850 break;
762 } 851 }
763
764 return count;
765} 852}
766 853
767static void create_pipe () 854XS(boot_IO__AIO) ecb_cold;
768{
769 if (pipe (respipe))
770 croak ("unable to initialize result pipe");
771 855
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 856MODULE = IO::AIO PACKAGE = IO::AIO
1243 857
1244PROTOTYPES: ENABLE 858PROTOTYPES: ENABLE
1245 859
1246BOOT: 860BOOT:
1247{ 861{
862 static const struct {
863 const char *name;
864 IV iv;
865 } *civ, const_iv[] = {
866# define const_niv(name, value) { # name, (IV) value },
867# define const_iv(name) { # name, (IV) name },
868# define const_eio(name) { # name, (IV) EIO_ ## name },
869
870 /* you have to re-run ./gendef0 after adding/Removing any constants here */
871
872 const_iv (ENOSYS)
873 const_iv (EXDEV)
874 const_iv (EBADR)
875
876 const_iv (O_RDONLY)
877 const_iv (O_WRONLY)
878 const_iv (O_RDWR)
879 const_iv (O_CREAT)
880 const_iv (O_TRUNC)
881 const_iv (O_EXCL)
882 const_iv (O_APPEND)
883
884 const_iv (O_ASYNC)
885 const_iv (O_DIRECT)
886 const_iv (O_NOATIME)
887
888 const_iv (O_CLOEXEC)
889 const_iv (O_NOCTTY)
890 const_iv (O_NOFOLLOW)
891 const_iv (O_NONBLOCK)
892 const_iv (O_EXEC)
893 const_iv (O_SEARCH)
894 const_iv (O_DIRECTORY)
895 const_iv (O_DSYNC)
896 const_iv (O_RSYNC)
897 const_iv (O_SYNC)
898 const_iv (O_TTY_INIT)
899
900 const_iv (S_IFIFO)
901 const_iv (S_IFCHR)
902 const_iv (S_IFBLK)
903 const_iv (S_IFLNK)
904 const_iv (S_IFREG)
905 const_iv (S_IFDIR)
906 const_iv (S_IFWHT)
907 const_iv (S_IFSOCK)
908 const_iv (S_IFMT)
909
910 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
911 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
912 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
913 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
914 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
915 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
916
917 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
918 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
919 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
920 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
921 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
922
923 const_iv (ST_RDONLY)
924 const_iv (ST_NOSUID)
925 const_iv (ST_NODEV)
926 const_iv (ST_NOEXEC)
927 const_iv (ST_SYNCHRONOUS)
928 const_iv (ST_MANDLOCK)
929 const_iv (ST_WRITE)
930 const_iv (ST_APPEND)
931 const_iv (ST_IMMUTABLE)
932 const_iv (ST_NOATIME)
933 const_iv (ST_NODIRATIME)
934 const_iv (ST_RELATIME)
935
936 const_iv (PROT_NONE)
937 const_iv (PROT_EXEC)
938 const_iv (PROT_READ)
939 const_iv (PROT_WRITE)
940
941 /*const_iv (MAP_FIXED)*/
942 const_iv (MAP_PRIVATE)
943 const_iv (MAP_SHARED)
944 const_iv (MAP_ANONYMOUS)
945
946 /* linuxish */
947 const_iv (MAP_HUGETLB)
948 const_iv (MAP_LOCKED)
949 const_iv (MAP_NORESERVE)
950 const_iv (MAP_POPULATE)
951 const_iv (MAP_NONBLOCK)
952
953 const_iv (FIEMAP_FLAG_SYNC)
954 const_iv (FIEMAP_FLAG_XATTR)
955 const_iv (FIEMAP_FLAGS_COMPAT)
956 const_iv (FIEMAP_EXTENT_LAST)
957 const_iv (FIEMAP_EXTENT_UNKNOWN)
958 const_iv (FIEMAP_EXTENT_DELALLOC)
959 const_iv (FIEMAP_EXTENT_ENCODED)
960 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
961 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
962 const_iv (FIEMAP_EXTENT_DATA_INLINE)
963 const_iv (FIEMAP_EXTENT_DATA_TAIL)
964 const_iv (FIEMAP_EXTENT_UNWRITTEN)
965 const_iv (FIEMAP_EXTENT_MERGED)
966 const_iv (FIEMAP_EXTENT_SHARED)
967
968 const_iv (SPLICE_F_MOVE)
969 const_iv (SPLICE_F_NONBLOCK)
970 const_iv (SPLICE_F_MORE)
971 const_iv (SPLICE_F_GIFT)
972
973 const_iv (SEEK_DATA)
974 const_iv (SEEK_HOLE)
975
976 /* libeio constants */
977 const_eio (SEEK_SET)
978 const_eio (SEEK_CUR)
979 const_eio (SEEK_END)
980
981 const_eio (MCL_FUTURE)
982 const_eio (MCL_CURRENT)
983
984 const_eio (MS_ASYNC)
985 const_eio (MS_INVALIDATE)
986 const_eio (MS_SYNC)
987
988 const_eio (MT_MODIFY)
989
990 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
991 const_eio (SYNC_FILE_RANGE_WRITE)
992 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
993
994 const_eio (FALLOC_FL_KEEP_SIZE)
995 const_eio (FALLOC_FL_PUNCH_HOLE)
996
997 const_eio (READDIR_DENTS)
998 const_eio (READDIR_DIRS_FIRST)
999 const_eio (READDIR_STAT_ORDER)
1000 const_eio (READDIR_FOUND_UNKNOWN)
1001
1002 const_eio (DT_UNKNOWN)
1003 const_eio (DT_FIFO)
1004 const_eio (DT_CHR)
1005 const_eio (DT_DIR)
1006 const_eio (DT_BLK)
1007 const_eio (DT_REG)
1008 const_eio (DT_LNK)
1009 const_eio (DT_SOCK)
1010 const_eio (DT_WHT)
1011 };
1012
1248 HV *stash = gv_stashpv ("IO::AIO", 1); 1013 aio_stash = gv_stashpv ("IO::AIO" , 1);
1014 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1015 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1016 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1249 1017
1250 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1018 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1251 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1019 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 1020
1257 create_pipe (); 1021 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1258 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1259}
1260 1022
1023 reinit ();
1024}
1025
1261void 1026void
1027reinit ()
1028 PROTOTYPE:
1029
1030void
1262max_poll_reqs (int nreqs) 1031max_poll_reqs (unsigned int nreqs)
1263 PROTOTYPE: $ 1032 PROTOTYPE: $
1264 CODE: 1033 CODE:
1265 max_poll_reqs = nreqs; 1034 eio_set_max_poll_reqs (nreqs);
1266 1035
1267void 1036void
1268max_poll_time (double nseconds) 1037max_poll_time (double nseconds)
1269 PROTOTYPE: $ 1038 PROTOTYPE: $
1270 CODE: 1039 CODE:
1271 max_poll_time = nseconds * AIO_TICKS; 1040 eio_set_max_poll_time (nseconds);
1272 1041
1273void 1042void
1274min_parallel (int nthreads) 1043min_parallel (unsigned int nthreads)
1275 PROTOTYPE: $
1276
1277void
1278max_parallel (int nthreads)
1279 PROTOTYPE: $
1280
1281void
1282max_idle (int nthreads)
1283 PROTOTYPE: $ 1044 PROTOTYPE: $
1284 CODE: 1045 CODE:
1285 set_max_idle (nthreads); 1046 eio_set_min_parallel (nthreads);
1286 1047
1287int 1048void
1288max_outstanding (int maxreqs) 1049max_parallel (unsigned int nthreads)
1289 PROTOTYPE: $ 1050 PROTOTYPE: $
1290 CODE: 1051 CODE:
1291 RETVAL = max_outstanding; 1052 eio_set_max_parallel (nthreads);
1053
1054void
1055max_idle (unsigned int nthreads)
1056 PROTOTYPE: $
1057 CODE:
1058 eio_set_max_idle (nthreads);
1059
1060void
1061idle_timeout (unsigned int seconds)
1062 PROTOTYPE: $
1063 CODE:
1064 eio_set_idle_timeout (seconds);
1065
1066void
1067max_outstanding (unsigned int maxreqs)
1068 PROTOTYPE: $
1069 CODE:
1292 max_outstanding = maxreqs; 1070 max_outstanding = maxreqs;
1293 OUTPUT:
1294 RETVAL
1295 1071
1296void 1072void
1297aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1073aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1298 SV * pathname
1299 int flags
1300 int mode
1301 SV * callback
1302 PROTOTYPE: $$$;$
1303 PPCODE: 1074 PPCODE:
1304{ 1075{
1305 dREQ; 1076 dREQ;
1306 1077
1307 req->type = REQ_OPEN; 1078 req->type = EIO_WD_OPEN;
1308 req->data = newSVsv (pathname); 1079 req_set_path1 (req, pathname);
1309 req->dataptr = SvPVbyte_nolen (req->data);
1310 req->fd = flags;
1311 req->mode = mode;
1312 1080
1313 REQ_SEND; 1081 REQ_SEND;
1314} 1082}
1315 1083
1316void 1084void
1085aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1086 PPCODE:
1087{
1088 dREQ;
1089
1090 req->type = EIO_OPEN;
1091 req_set_path1 (req, pathname);
1092 req->int1 = flags;
1093 req->int2 = mode;
1094
1095 REQ_SEND;
1096}
1097
1098void
1317aio_close (fh,callback=&PL_sv_undef) 1099aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1318 SV * fh
1319 SV * callback
1320 PROTOTYPE: $;$
1321 ALIAS: 1100 ALIAS:
1322 aio_close = REQ_CLOSE
1323 aio_fsync = REQ_FSYNC 1101 aio_fsync = EIO_FSYNC
1324 aio_fdatasync = REQ_FDATASYNC 1102 aio_fdatasync = EIO_FDATASYNC
1103 aio_syncfs = EIO_SYNCFS
1325 PPCODE: 1104 PPCODE:
1326{ 1105{
1106 int fd = s_fileno_croak (fh, 0);
1327 dREQ; 1107 dREQ;
1328 1108
1329 req->type = ix; 1109 req->type = ix;
1330 req->fh = newSVsv (fh); 1110 req->sv1 = newSVsv (fh);
1331 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1111 req->int1 = fd;
1332 1112
1333 REQ_SEND (req); 1113 REQ_SEND;
1334} 1114}
1335 1115
1336void 1116void
1117aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1118 PPCODE:
1119{
1120 int fd = s_fileno_croak (fh, 0);
1121 dREQ;
1122
1123 req->type = EIO_SYNC_FILE_RANGE;
1124 req->sv1 = newSVsv (fh);
1125 req->int1 = fd;
1126 req->offs = offset;
1127 req->size = nbytes;
1128 req->int2 = flags;
1129
1130 REQ_SEND;
1131}
1132
1133void
1134aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1135 PPCODE:
1136{
1137 int fd = s_fileno_croak (fh, 0);
1138 dREQ;
1139
1140 req->type = EIO_FALLOCATE;
1141 req->sv1 = newSVsv (fh);
1142 req->int1 = fd;
1143 req->int2 = mode;
1144 req->offs = offset;
1145 req->size = len;
1146
1147 REQ_SEND;
1148}
1149
1150void
1151aio_close (SV *fh, SV *callback=&PL_sv_undef)
1152 PPCODE:
1153{
1154 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1155 int fd = s_fileno_croak (fh, 0);
1156 dREQ;
1157
1158 if (expect_false (close_fd < 0))
1159 {
1160 int pipefd [2];
1161
1162 if (
1163#ifdef _WIN32
1164 _pipe (pipefd, 1, _O_BINARY) < 0
1165#else
1166 pipe (pipefd) < 0
1167 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1168#endif
1169 || close (pipefd [1]) < 0
1170 )
1171 abort (); /*D*/
1172
1173 close_fd = pipefd [0];
1174 }
1175
1176 req->type = EIO_DUP2;
1177 req->int1 = close_fd;
1178 req->sv2 = newSVsv (fh);
1179 req->int2 = fd;
1180
1181 REQ_SEND;
1182}
1183
1184void
1185aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1186 PPCODE:
1187{
1188 int fd = s_fileno_croak (fh, 0);
1189 dREQ;
1190
1191 req->type = EIO_SEEK;
1192 req->sv1 = newSVsv (fh);
1193 req->int1 = fd;
1194 req->offs = SvVAL64 (offset);
1195 req->int2 = whence;
1196
1197 REQ_SEND;
1198}
1199
1200void
1337aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1201aio_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: 1202 ALIAS:
1345 aio_read = REQ_READ 1203 aio_read = EIO_READ
1346 aio_write = REQ_WRITE 1204 aio_write = EIO_WRITE
1347 PROTOTYPE: $$$$$;$
1348 PPCODE: 1205 PPCODE:
1349{ 1206{
1350 aio_req req;
1351 STRLEN svlen; 1207 STRLEN svlen;
1208 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1352 char *svptr = SvPVbyte (data, svlen); 1209 char *svptr = SvPVbyte (data, svlen);
1353 1210 UV len = SvUV (length);
1354 SvUPGRADE (data, SVt_PV);
1355 SvPOK_on (data);
1356 1211
1357 if (dataoffset < 0) 1212 if (dataoffset < 0)
1358 dataoffset += svlen; 1213 dataoffset += svlen;
1359 1214
1360 if (dataoffset < 0 || dataoffset > svlen) 1215 if (dataoffset < 0 || dataoffset > svlen)
1361 croak ("data offset outside of string"); 1216 croak ("dataoffset outside of data scalar");
1362 1217
1363 if (ix == REQ_WRITE) 1218 if (ix == EIO_WRITE)
1364 { 1219 {
1365 /* write: check length and adjust. */ 1220 /* write: check length and adjust. */
1366 if (length < 0 || length + dataoffset > svlen) 1221 if (!SvOK (length) || len + dataoffset > svlen)
1367 length = svlen - dataoffset; 1222 len = svlen - dataoffset;
1368 } 1223 }
1369 else 1224 else
1370 { 1225 {
1371 /* read: grow scalar as necessary */ 1226 /* read: check type and grow scalar as necessary */
1227 SvUPGRADE (data, SVt_PV);
1228 if (SvLEN (data) >= SvCUR (data))
1372 svptr = SvGROW (data, length + dataoffset); 1229 svptr = SvGROW (data, len + dataoffset + 1);
1230 else if (SvCUR (data) < len + dataoffset)
1231 croak ("length + dataoffset outside of scalar, and cannot grow");
1373 } 1232 }
1374
1375 if (length < 0)
1376 croak ("length must not be negative");
1377 1233
1378 { 1234 {
1379 dREQ; 1235 dREQ;
1380 1236
1381 req->type = ix; 1237 req->type = ix;
1382 req->fh = newSVsv (fh); 1238 req->sv1 = newSVsv (fh);
1383 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1239 req->int1 = fd;
1384 : IoOFP (sv_2io (fh))); 1240 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1385 req->offset = offset; 1241 req->size = len;
1386 req->length = length;
1387 req->data = SvREFCNT_inc (data); 1242 req->sv2 = SvREFCNT_inc (data);
1388 req->dataptr = (char *)svptr + dataoffset; 1243 req->ptr2 = (char *)svptr + dataoffset;
1244 req->stroffset = dataoffset;
1389 1245
1390 if (!SvREADONLY (data)) 1246 if (!SvREADONLY (data))
1391 { 1247 {
1392 SvREADONLY_on (data); 1248 SvREADONLY_on (data);
1393 req->data2ptr = (void *)data; 1249 req->flags |= FLAG_SV2_RO_OFF;
1394 } 1250 }
1395 1251
1396 REQ_SEND; 1252 REQ_SEND;
1397 } 1253 }
1398} 1254}
1399 1255
1400void 1256void
1401aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1257aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1402 SV * out_fh 1258 ALIAS:
1403 SV * in_fh 1259 aio_readlink = EIO_READLINK
1404 UV in_offset 1260 aio_realpath = EIO_REALPATH
1405 UV length
1406 SV * callback
1407 PROTOTYPE: $$$$;$
1408 PPCODE: 1261 PPCODE:
1409{ 1262{
1263 dREQ;
1264
1265 req->type = ix;
1266 req_set_path1 (req, pathname);
1267
1268 REQ_SEND;
1269}
1270
1271void
1272aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1273 PPCODE:
1274{
1275 int ifd = s_fileno_croak (in_fh , 0);
1276 int ofd = s_fileno_croak (out_fh, 1);
1410 dREQ; 1277 dREQ;
1411 1278
1412 req->type = REQ_SENDFILE; 1279 req->type = EIO_SENDFILE;
1413 req->fh = newSVsv (out_fh); 1280 req->sv1 = newSVsv (out_fh);
1414 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1281 req->int1 = ofd;
1415 req->fh2 = newSVsv (in_fh); 1282 req->sv2 = newSVsv (in_fh);
1416 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1283 req->int2 = ifd;
1417 req->offset = in_offset; 1284 req->offs = in_offset;
1418 req->length = length; 1285 req->size = length;
1419 1286
1420 REQ_SEND; 1287 REQ_SEND;
1421} 1288}
1422 1289
1423void 1290void
1424aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1291aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1425 SV * fh
1426 UV offset
1427 IV length
1428 SV * callback
1429 PROTOTYPE: $$$;$
1430 PPCODE: 1292 PPCODE:
1431{ 1293{
1294 int fd = s_fileno_croak (fh, 0);
1432 dREQ; 1295 dREQ;
1433 1296
1434 req->type = REQ_READAHEAD; 1297 req->type = EIO_READAHEAD;
1435 req->fh = newSVsv (fh); 1298 req->sv1 = newSVsv (fh);
1436 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1299 req->int1 = fd;
1437 req->offset = offset; 1300 req->offs = offset;
1438 req->length = length; 1301 req->size = length;
1439 1302
1440 REQ_SEND; 1303 REQ_SEND;
1441} 1304}
1442 1305
1443void 1306void
1444aio_stat (fh_or_path,callback=&PL_sv_undef) 1307aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1445 SV * fh_or_path
1446 SV * callback
1447 ALIAS: 1308 ALIAS:
1448 aio_stat = REQ_STAT 1309 aio_stat = EIO_STAT
1449 aio_lstat = REQ_LSTAT 1310 aio_lstat = EIO_LSTAT
1311 aio_statvfs = EIO_STATVFS
1450 PPCODE: 1312 PPCODE:
1451{ 1313{
1452 dREQ; 1314 dREQ;
1453 1315
1454 New (0, req->statdata, 1, Stat_t); 1316 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 1317
1474 REQ_SEND; 1318 REQ_SEND;
1475} 1319}
1476 1320
1321UV
1322major (UV dev)
1323 ALIAS:
1324 minor = 1
1325 CODE:
1326 RETVAL = ix ? major (dev) : minor (dev);
1327 OUTPUT:
1328 RETVAL
1329
1330UV
1331makedev (UV maj, UV min)
1332 CODE:
1333 RETVAL = makedev (maj, min);
1334 OUTPUT:
1335 RETVAL
1336
1477void 1337void
1338aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1339 PPCODE:
1340{
1341 dREQ;
1342
1343 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1344 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1345 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1346
1347 REQ_SEND;
1348}
1349
1350void
1351aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1352 PPCODE:
1353{
1354 dREQ;
1355
1356 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1357 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1358
1359 REQ_SEND;
1360}
1361
1362void
1363aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1364 PPCODE:
1365{
1366 dREQ;
1367
1368 req->int2 = mode;
1369 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1370
1371 REQ_SEND;
1372}
1373
1374void
1375aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1376 PPCODE:
1377{
1378 dREQ;
1379
1380 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1381 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1382 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1389 PPCODE:
1390{
1391 dREQ;
1392
1393 req->type = EIO_READDIR;
1394 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1395
1396 if (flags & EIO_READDIR_DENTS)
1397 req->int1 |= EIO_READDIR_CUSTOM2;
1398
1399 req_set_path1 (req, pathname);
1400
1401 REQ_SEND;
1402}
1403
1404void
1405aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1406 PPCODE:
1407{
1408 dREQ;
1409
1410 req->type = EIO_MKDIR;
1411 req->int2 = mode;
1412 req_set_path1 (req, pathname);
1413
1414 REQ_SEND;
1415}
1416
1417void
1478aio_unlink (pathname,callback=&PL_sv_undef) 1418aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1479 SV * pathname
1480 SV * callback
1481 ALIAS: 1419 ALIAS:
1482 aio_unlink = REQ_UNLINK 1420 aio_unlink = EIO_UNLINK
1483 aio_rmdir = REQ_RMDIR 1421 aio_rmdir = EIO_RMDIR
1484 aio_readdir = REQ_READDIR 1422 aio_readdir = EIO_READDIR
1485 PPCODE: 1423 PPCODE:
1486{ 1424{
1487 dREQ; 1425 dREQ;
1488 1426
1489 req->type = ix; 1427 req->type = ix;
1490 req->data = newSVsv (pathname); 1428 req_set_path1 (req, pathname);
1491 req->dataptr = SvPVbyte_nolen (req->data); 1429
1492
1493 REQ_SEND; 1430 REQ_SEND;
1494} 1431}
1495 1432
1496void 1433void
1497aio_link (oldpath,newpath,callback=&PL_sv_undef) 1434aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1498 SV * oldpath
1499 SV * newpath
1500 SV * callback
1501 ALIAS: 1435 ALIAS:
1502 aio_link = REQ_LINK 1436 aio_link = EIO_LINK
1503 aio_symlink = REQ_SYMLINK 1437 aio_symlink = EIO_SYMLINK
1504 aio_rename = REQ_RENAME 1438 aio_rename = EIO_RENAME
1505 PPCODE: 1439 PPCODE:
1506{ 1440{
1441 eio_wd wd2 = 0;
1507 dREQ; 1442 dREQ;
1508 1443
1509 req->type = ix; 1444 req->type = ix;
1510 req->fh = newSVsv (oldpath); 1445 req_set_path1 (req, oldpath);
1511 req->data2ptr = SvPVbyte_nolen (req->fh); 1446 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1512 req->data = newSVsv (newpath); 1447 req->int3 = (long)wd2;
1513 req->dataptr = SvPVbyte_nolen (req->data);
1514 1448
1515 REQ_SEND; 1449 REQ_SEND;
1516} 1450}
1517 1451
1518void 1452void
1519aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1453aio_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: 1454 PPCODE:
1525{ 1455{
1526 dREQ; 1456 dREQ;
1527 1457
1528 req->type = REQ_MKNOD; 1458 req->type = EIO_MKNOD;
1529 req->data = newSVsv (pathname);
1530 req->dataptr = SvPVbyte_nolen (req->data);
1531 req->mode = (mode_t)mode; 1459 req->int2 = (mode_t)mode;
1532 req->offset = dev; 1460 req->offs = dev;
1461 req_set_path1 (req, pathname);
1533 1462
1534 REQ_SEND; 1463 REQ_SEND;
1535} 1464}
1536 1465
1537void 1466void
1467aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1468 ALIAS:
1469 aio_mtouch = EIO_MTOUCH
1470 aio_msync = EIO_MSYNC
1471 PPCODE:
1472{
1473 STRLEN svlen;
1474 char *svptr = SvPVbyte (data, svlen);
1475 UV len = SvUV (length);
1476
1477 if (offset < 0)
1478 offset += svlen;
1479
1480 if (offset < 0 || offset > svlen)
1481 croak ("offset outside of scalar");
1482
1483 if (!SvOK (length) || len + offset > svlen)
1484 len = svlen - offset;
1485
1486 {
1487 dREQ;
1488
1489 req->type = ix;
1490 req->sv2 = SvREFCNT_inc (data);
1491 req->ptr2 = (char *)svptr + offset;
1492 req->size = len;
1493 req->int1 = flags;
1494
1495 REQ_SEND;
1496 }
1497}
1498
1499void
1500aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1501 PPCODE:
1502{
1503 STRLEN svlen;
1504 char *svptr = SvPVbyte (data, svlen);
1505 UV len = SvUV (length);
1506
1507 if (offset < 0)
1508 offset += svlen;
1509
1510 if (offset < 0 || offset > svlen)
1511 croak ("offset outside of scalar");
1512
1513 if (!SvOK (length) || len + offset > svlen)
1514 len = svlen - offset;
1515
1516 {
1517 dREQ;
1518
1519 req->type = EIO_MLOCK;
1520 req->sv2 = SvREFCNT_inc (data);
1521 req->ptr2 = (char *)svptr + offset;
1522 req->size = len;
1523
1524 REQ_SEND;
1525 }
1526}
1527
1528void
1529aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1530 PPCODE:
1531{
1532 dREQ;
1533
1534 req->type = EIO_MLOCKALL;
1535 req->int1 = flags;
1536
1537 REQ_SEND;
1538}
1539
1540void
1541aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 int fd = s_fileno_croak (fh, 0);
1545 dREQ;
1546
1547 req->type = EIO_CUSTOM;
1548 req->sv1 = newSVsv (fh);
1549 req->int1 = fd;
1550
1551 req->feed = fiemap;
1552#if HAVE_FIEMAP
1553 /* keep our fingers crossed that the next two types are 64 bit */
1554 req->offs = start;
1555 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1556 req->int2 = flags;
1557 req->int3 = SvOK (count) ? SvIV (count) : -1;
1558#endif
1559
1560 REQ_SEND;
1561}
1562
1563void
1538aio_busy (delay,callback=&PL_sv_undef) 1564aio_busy (double delay, SV *callback=&PL_sv_undef)
1539 double delay
1540 SV * callback
1541 PPCODE: 1565 PPCODE:
1542{ 1566{
1543 dREQ; 1567 dREQ;
1544 1568
1545 req->type = REQ_BUSY; 1569 req->type = EIO_BUSY;
1546 req->fd = delay < 0. ? 0 : delay; 1570 req->nv1 = delay < 0. ? 0. : delay;
1547 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1548 1571
1549 REQ_SEND; 1572 REQ_SEND;
1550} 1573}
1551 1574
1552void 1575void
1553aio_group (callback=&PL_sv_undef) 1576aio_group (SV *callback=&PL_sv_undef)
1554 SV * callback
1555 PROTOTYPE: ;$
1556 PPCODE: 1577 PPCODE:
1557{ 1578{
1558 dREQ; 1579 dREQ;
1559 1580
1560 req->type = REQ_GROUP; 1581 req->type = EIO_GROUP;
1582
1561 req_send (req); 1583 req_submit (req);
1562
1563 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1584 XPUSHs (req_sv (req, aio_grp_stash));
1564} 1585}
1565 1586
1566void 1587void
1567aio_nop (callback=&PL_sv_undef) 1588aio_nop (SV *callback=&PL_sv_undef)
1568 SV * callback 1589 ALIAS:
1590 aio_nop = EIO_NOP
1591 aio_sync = EIO_SYNC
1569 PPCODE: 1592 PPCODE:
1570{ 1593{
1571 dREQ; 1594 dREQ;
1572 1595
1573 req->type = REQ_NOP; 1596 req->type = ix;
1574 1597
1575 REQ_SEND; 1598 REQ_SEND;
1576} 1599}
1577 1600
1578int 1601int
1579aioreq_pri (int pri = 0) 1602aioreq_pri (int pri = 0)
1580 PROTOTYPE: ;$
1581 CODE: 1603 CODE:
1582 RETVAL = next_pri - PRI_BIAS; 1604 RETVAL = next_pri;
1583 if (items > 0) 1605 if (items > 0)
1584 { 1606 {
1585 if (pri < PRI_MIN) pri = PRI_MIN; 1607 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1586 if (pri > PRI_MAX) pri = PRI_MAX; 1608 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1587 next_pri = pri + PRI_BIAS; 1609 next_pri = pri;
1588 } 1610 }
1589 OUTPUT: 1611 OUTPUT:
1590 RETVAL 1612 RETVAL
1591 1613
1592void 1614void
1593aioreq_nice (int nice = 0) 1615aioreq_nice (int nice = 0)
1594 CODE: 1616 CODE:
1595 nice = next_pri - nice; 1617 nice = next_pri - nice;
1596 if (nice < PRI_MIN) nice = PRI_MIN; 1618 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1597 if (nice > PRI_MAX) nice = PRI_MAX; 1619 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1598 next_pri = nice + PRI_BIAS; 1620 next_pri = nice;
1599 1621
1600void 1622void
1601flush () 1623flush ()
1602 PROTOTYPE:
1603 CODE: 1624 CODE:
1604 while (nreqs) 1625 while (eio_nreqs ())
1605 { 1626 {
1606 poll_wait (); 1627 poll_wait ();
1607 poll_cb (0); 1628 poll_cb ();
1608 } 1629 }
1609 1630
1610void 1631int
1611poll() 1632poll ()
1612 PROTOTYPE:
1613 CODE: 1633 CODE:
1614 if (nreqs)
1615 {
1616 poll_wait (); 1634 poll_wait ();
1617 poll_cb (0); 1635 RETVAL = poll_cb ();
1618 }
1619
1620int
1621poll_fileno()
1622 PROTOTYPE:
1623 CODE:
1624 RETVAL = respipe [0];
1625 OUTPUT: 1636 OUTPUT:
1626 RETVAL 1637 RETVAL
1627 1638
1628int 1639int
1640poll_fileno ()
1641 CODE:
1642 RETVAL = s_epipe_fd (&respipe);
1643 OUTPUT:
1644 RETVAL
1645
1646int
1629poll_cb(...) 1647poll_cb (...)
1630 PROTOTYPE: 1648 PROTOTYPE:
1631 CODE: 1649 CODE:
1632 RETVAL = poll_cb (); 1650 RETVAL = poll_cb ();
1633 OUTPUT: 1651 OUTPUT:
1634 RETVAL 1652 RETVAL
1635 1653
1636void 1654void
1637poll_wait() 1655poll_wait ()
1638 PROTOTYPE:
1639 CODE: 1656 CODE:
1640 if (nreqs)
1641 poll_wait (); 1657 poll_wait ();
1642 1658
1643int 1659int
1644nreqs() 1660nreqs ()
1645 PROTOTYPE:
1646 CODE: 1661 CODE:
1647 RETVAL = nreqs; 1662 RETVAL = eio_nreqs ();
1648 OUTPUT: 1663 OUTPUT:
1649 RETVAL 1664 RETVAL
1650 1665
1651int 1666int
1652nready() 1667nready ()
1653 PROTOTYPE:
1654 CODE: 1668 CODE:
1655 RETVAL = get_nready (); 1669 RETVAL = eio_nready ();
1656 OUTPUT: 1670 OUTPUT:
1657 RETVAL 1671 RETVAL
1658 1672
1659int 1673int
1660npending() 1674npending ()
1661 PROTOTYPE:
1662 CODE: 1675 CODE:
1663 RETVAL = get_npending (); 1676 RETVAL = eio_npending ();
1664 OUTPUT: 1677 OUTPUT:
1665 RETVAL 1678 RETVAL
1666 1679
1667int 1680int
1668nthreads() 1681nthreads ()
1669 PROTOTYPE:
1670 CODE: 1682 CODE:
1671 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1683 RETVAL = eio_nthreads ();
1672 RETVAL = started;
1673 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1674 OUTPUT: 1684 OUTPUT:
1675 RETVAL 1685 RETVAL
1676 1686
1687int
1688fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1689 CODE:
1690 RETVAL = posix_fadvise (fh, offset, length, advice);
1691 OUTPUT:
1692 RETVAL
1693
1694IV
1695sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1696 CODE:
1697 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1698 OUTPUT:
1699 RETVAL
1700
1701void
1702mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1703 PPCODE:
1704 sv_unmagic (scalar, MMAP_MAGIC);
1705{
1706 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1707 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1708 if (addr == (void *)-1)
1709 XSRETURN_NO;
1710
1711 sv_force_normal (scalar);
1712
1713 /* we store the length in mg_obj, as namlen is I32 :/ */
1714 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1715 ->mg_obj = (SV *)length;
1716
1717 SvUPGRADE (scalar, SVt_PV); /* nop... */
1718
1719 if (!(prot & PROT_WRITE))
1720 SvREADONLY_on (scalar);
1721
1722 if (SvLEN (scalar))
1723 Safefree (SvPVX (scalar));
1724
1725 SvPVX (scalar) = (char *)addr;
1726 SvCUR_set (scalar, length);
1727 SvLEN_set (scalar, 0);
1728 SvPOK_only (scalar);
1729
1730 XSRETURN_YES;
1731}
1732
1733void
1734munmap (SV *scalar)
1735 CODE:
1736 sv_unmagic (scalar, MMAP_MAGIC);
1737
1738int
1739madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1740 ALIAS:
1741 mprotect = 1
1742 CODE:
1743{
1744 STRLEN svlen;
1745 void *addr = SvPVbyte (scalar, svlen);
1746 size_t len = SvUV (length);
1747
1748 if (offset < 0)
1749 offset += svlen;
1750
1751 if (offset < 0 || offset > svlen)
1752 croak ("offset outside of scalar");
1753
1754 if (!SvOK (length) || len + offset > svlen)
1755 len = svlen - offset;
1756
1757 addr = (void *)(((intptr_t)addr) + offset);
1758 eio_page_align (&addr, &len);
1759
1760 switch (ix)
1761 {
1762 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1763 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1764 }
1765}
1766 OUTPUT:
1767 RETVAL
1768
1769int
1770munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1771 CODE:
1772{
1773 STRLEN svlen;
1774 void *addr = SvPVbyte (scalar, svlen);
1775 size_t len = SvUV (length);
1776
1777 if (offset < 0)
1778 offset += svlen;
1779
1780 if (offset < 0 || offset > svlen)
1781 croak ("offset outside of scalar");
1782
1783 if (!SvOK (length) || len + offset > svlen)
1784 len = svlen - offset;
1785
1786 addr = (void *)(((intptr_t)addr) + offset);
1787 eio_page_align (&addr, &len);
1788#if _POSIX_MEMLOCK_RANGE
1789 RETVAL = munlock (addr, len);
1790#else
1791 RETVAL = EIO_ENOSYS ();
1792#endif
1793}
1794 OUTPUT:
1795 RETVAL
1796
1797int
1798munlockall ()
1799 CODE:
1800#if _POSIX_MEMLOCK
1801 munlockall ();
1802#else
1803 RETVAL = EIO_ENOSYS ();
1804#endif
1805 OUTPUT:
1806 RETVAL
1807
1808int
1809splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1810 CODE:
1811{
1812#if HAVE_LINUX_SPLICE
1813 loff_t off_in_, off_out_;
1814 RETVAL = splice (
1815 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1816 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1817 length, flags
1818 );
1819#else
1820 RETVAL = EIO_ENOSYS ();
1821#endif
1822}
1823 OUTPUT:
1824 RETVAL
1825
1826int
1827tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1828 CODE:
1829#if HAVE_LINUX_SPLICE
1830 RETVAL = tee (rfh, wfh, length, flags);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834 OUTPUT:
1835 RETVAL
1836
1837void _on_next_submit (SV *cb)
1838 CODE:
1839 SvREFCNT_dec (on_next_submit);
1840 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1841
1677PROTOTYPES: DISABLE 1842PROTOTYPES: DISABLE
1843
1844MODULE = IO::AIO PACKAGE = IO::AIO::WD
1845
1846BOOT:
1847{
1848 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1849 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1850}
1851
1852void
1853DESTROY (SV *self)
1854 CODE:
1855{
1856 aio_wd wd = SvAIO_WD (self);
1857#if HAVE_AT
1858 {
1859 SV *callback = &PL_sv_undef;
1860 dREQ; /* clobbers next_pri :/ */
1861 next_pri = req->pri; /* restore next_pri */
1862 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1863 req->type = EIO_WD_CLOSE;
1864 req->wd = wd;
1865 REQ_SEND;
1866 }
1867#else
1868 eio_wd_close_sync (wd);
1869#endif
1870}
1678 1871
1679MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1872MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1680 1873
1681void 1874void
1682cancel (aio_req_ornot req) 1875cancel (aio_req_ornot req)
1683 CODE: 1876 CODE:
1684 req_cancel (req); 1877 eio_cancel (req);
1685 1878
1686void 1879void
1687cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1880cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1688 CODE: 1881 PPCODE:
1882{
1883 if (GIMME_V != G_VOID)
1884 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1885
1886 if (items > 1)
1887 {
1888 SV *cb_cv =get_cb (callback);
1889
1689 SvREFCNT_dec (req->callback); 1890 SvREFCNT_dec (req->callback);
1690 req->callback = newSVsv (callback); 1891 req->callback = SvREFCNT_inc (cb_cv);
1892 }
1893}
1691 1894
1692MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1895MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1693 1896
1694void 1897void
1695add (aio_req grp, ...) 1898add (aio_req grp, ...)
1696 PPCODE: 1899 PPCODE:
1697{ 1900{
1698 int i; 1901 int i;
1699 aio_req req;
1700 1902
1701 if (grp->fd == 2) 1903 if (grp->int1 == 2)
1702 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1904 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1703 1905
1704 for (i = 1; i < items; ++i ) 1906 for (i = 1; i < items; ++i )
1705 { 1907 {
1908 aio_req req;
1909
1706 if (GIMME_V != G_VOID) 1910 if (GIMME_V != G_VOID)
1707 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1911 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1708 1912
1709 req = SvAIO_REQ (ST (i)); 1913 req = SvAIO_REQ (ST (i));
1710 1914
1711 if (req) 1915 if (req)
1712 { 1916 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 } 1917 }
1725} 1918}
1726 1919
1727void 1920void
1728cancel_subs (aio_req_ornot req) 1921cancel_subs (aio_req_ornot req)
1737 AV *av; 1930 AV *av;
1738 1931
1739 grp->errorno = errno; 1932 grp->errorno = errno;
1740 1933
1741 av = newAV (); 1934 av = newAV ();
1935 av_extend (av, items - 1);
1742 1936
1743 for (i = 1; i < items; ++i ) 1937 for (i = 1; i < items; ++i )
1744 av_push (av, newSVsv (ST (i))); 1938 av_push (av, newSVsv (ST (i)));
1745 1939
1746 SvREFCNT_dec (grp->data); 1940 SvREFCNT_dec (grp->sv1);
1747 grp->data = (SV *)av; 1941 grp->sv1 = (SV *)av;
1748} 1942}
1749 1943
1750void 1944void
1751errno (aio_req grp, int errorno = errno) 1945errno (aio_req grp, int errorno = errno)
1752 CODE: 1946 CODE:
1753 grp->errorno = errorno; 1947 grp->errorno = errorno;
1754 1948
1755void 1949void
1756limit (aio_req grp, int limit) 1950limit (aio_req grp, int limit)
1757 CODE: 1951 CODE:
1758 grp->fd2 = limit; 1952 eio_grp_limit (grp, limit);
1759 aio_grp_feed (grp);
1760 1953
1761void 1954void
1762feed (aio_req grp, SV *callback=&PL_sv_undef) 1955feed (aio_req grp, SV *callback=&PL_sv_undef)
1763 CODE: 1956 CODE:
1764{ 1957{
1765 SvREFCNT_dec (grp->fh2); 1958 SvREFCNT_dec (grp->sv2);
1766 grp->fh2 = newSVsv (callback); 1959 grp->sv2 = newSVsv (callback);
1960 grp->feed = aio_grp_feed;
1767 1961
1768 if (grp->fd2 <= 0) 1962 if (grp->int2 <= 0)
1769 grp->fd2 = 2; 1963 grp->int2 = 2;
1770 1964
1771 aio_grp_feed (grp); 1965 eio_grp_limit (grp, grp->int2);
1772} 1966}
1773 1967

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