ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.101 by root, Fri Jun 1 13:25:51 2007 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 UTC

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

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines