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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.101 by root, Fri Jun 1 13:25:51 2007 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 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#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>
82 #include <sys/select.h>
83 #include <unistd.h>
23#include <utime.h> 84 #include <utime.h>
85 #include <signal.h>
24 86
25#if HAVE_SENDFILE 87 #define EIO_STRUCT_STAT Stat_t
26# if __linux 88
27# include <sys/sendfile.h> 89#endif
28# elif __freebsd 90
29# include <sys/socket.h> 91/*****************************************************************************/
30# include <sys/uio.h> 92
31# elif __hpux 93#if __GNUC__ >= 3
32# include <sys/socket.h> 94# define expect(expr,value) __builtin_expect ((expr),(value))
33# elif __solaris /* not yet */ 95#else
34# include <sys/sendfile.h> 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
35# else 140# else
36# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 142# endif
38#endif 143#endif
39 144
40/* number of seconds after which idle threads exit */ 145/* defines all sorts of constants to 0 unless they are already defined */
41#define IDLE_TIMEOUT 10 146#include "def0.h"
42 147
43/* used for struct dirent, AIX doesn't provide it */ 148#ifndef makedev
44#ifndef NAME_MAX 149# define makedev(maj,min) (((maj) << 8) | (min))
45# define NAME_MAX 4096
46#endif 150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
47 157
48/* buffer size for various temporary buffers */ 158#ifndef PAGESIZE
49#define AIO_BUFSIZE 65536 159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
50 161
51/* use NV for 32 bit perls as it allows larger offsets */ 162/*****************************************************************************/
52#if IVSIZE >= 8 163
53# define SvVAL64 SvIV 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)
200 break; /* if file has no segments, we are done */
201
202 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
203 break; /* autosizing successful, we are done */
204
205 fiemap->fm_flags = req->int2;
206 fiemap->fm_extent_count = 0;
207
208 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
209 return;
210
211 count = fiemap->fm_mapped_extents;
212
213 free (fiemap);
214 }
215
216 req->result = 0;
217
54#else 218#else
55# define SvVAL64 SvNV 219 errno = ENOSYS;
56#endif 220#endif
221}
57 222
58#define dBUF \ 223/*****************************************************************************/
59 char *aio_buf; \
60 LOCK (wrklock); \
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
62 UNLOCK (wrklock); \
63 if (!aio_buf) \
64 return -1;
65
66typedef SV SV8; /* byte-sv, used for argument-checking */
67 224
68enum { 225enum {
69 REQ_QUIT, 226 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
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}; 227};
84 228
85#define AIO_REQ_KLASS "IO::AIO::REQ"
86#define AIO_GRP_KLASS "IO::AIO::GRP"
87
88typedef struct aio_cb
89{
90 struct aio_cb *volatile next;
91
92 SV *callback;
93 SV *sv1, *sv2;
94 void *ptr1, *ptr2;
95 off_t offs;
96 size_t size;
97 ssize_t result;
98 double nv1, nv2;
99
100 STRLEN stroffset;
101 int type;
102 int int1, int2, int3;
103 int errorno;
104 mode_t mode; /* open */
105
106 unsigned char flags;
107 unsigned char pri;
108
109 SV *self; /* the perl counterpart of this request, if any */
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
111} aio_cb;
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; 229typedef eio_req *aio_req;
120typedef aio_cb *aio_req_ornot; 230typedef eio_req *aio_req_ornot;
231typedef eio_wd aio_wd;
121 232
122enum { 233static SV *on_next_submit;
123 PRI_MIN = -4, 234static int next_pri = EIO_PRI_DEFAULT;
124 PRI_MAX = 4, 235static int max_outstanding;
125 236
126 DEFAULT_PRI = 0, 237static s_epipe respipe;
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130 238
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;
153
154 if (!main_sig)
155 return;
156
157 sigemptyset (&ss);
158 sigaddset (&ss, main_sig);
159 pthread_sigmask (SIG_BLOCK, &ss, 0);
160}
161
162void unblock_sig ()
163{
164 sigset_t ss;
165
166 if (--block_sig_level)
167 return;
168
169 if (!main_sig)
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 {
202 closedir (wrk->dirp);
203 wrk->dirp = 0;
204 }
205
206 if (wrk->dbuf)
207 {
208 free (wrk->dbuf);
209 wrk->dbuf = 0;
210 }
211}
212
213static void worker_free (worker *wrk)
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;
308
309 --q->size;
310
311 for (pri = NUM_PRI; pri--; )
312 {
313 aio_req req = q->qs[pri];
314
315 if (req)
316 {
317 if (!(q->qs[pri] = req->next))
318 q->qe[pri] = 0;
319
320 return req;
321 }
322 }
323
324 abort ();
325}
326
327static int poll_cb ();
328static int req_invoke (aio_req req);
329static void req_destroy (aio_req req); 239static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 240static void req_cancel (aio_req req);
331 241
242static void
243want_poll (void)
244{
245 /* write a dummy byte to the pipe so fh becomes ready */
246 s_epipe_signal (&respipe);
247}
248
249static void
250done_poll (void)
251{
252 /* read any signals sent by the worker threads */
253 s_epipe_drain (&respipe);
254}
255
332/* must be called at most once */ 256/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 257static SV *
258req_sv (aio_req req, HV *stash)
334{ 259{
335 if (!req->self) 260 if (!req->self)
336 { 261 {
337 req->self = (SV *)newHV (); 262 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 263 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 264 }
340 265
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 266 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
342} 267}
343 268
344static aio_req SvAIO_REQ (SV *sv) 269static SV *
270newSVaio_wd (aio_wd wd)
271{
272 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
273}
274
275static aio_req
276SvAIO_REQ (SV *sv)
345{ 277{
346 MAGIC *mg; 278 MAGIC *mg;
347 279
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 280 if (!SvROK (sv)
281 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
282 || (SvSTASH (SvRV (sv)) != aio_grp_stash
283 && SvSTASH (SvRV (sv)) != aio_req_stash
284 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 285 croak ("object of class IO::AIO::REQ expected");
350 286
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 287 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 288
353 return mg ? (aio_req)mg->mg_ptr : 0; 289 return mg ? (aio_req)mg->mg_ptr : 0;
354} 290}
355 291
292static aio_wd
293SvAIO_WD (SV *sv)
294{
295 if (!SvROK (sv)
296 || SvTYPE (SvRV (sv)) != SVt_PVMG
297 || SvSTASH (SvRV (sv)) != aio_wd_stash)
298 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
299
300 return (aio_wd)(long)SvIVX (SvRV (sv));
301}
302
303static void
356static void aio_grp_feed (aio_req grp) 304aio_grp_feed (aio_req grp)
357{ 305{
358 block_sig (); 306 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 307 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 308 dSP;
367 309
368 ENTER; 310 ENTER;
369 SAVETMPS; 311 SAVETMPS;
370 PUSHMARK (SP); 312 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 313 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 314 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 315 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 316 SPAGAIN;
375 FREETMPS; 317 FREETMPS;
376 LEAVE; 318 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 } 319 }
387
388 unblock_sig ();
389} 320}
390 321
391static void aio_grp_dec (aio_req grp) 322static void
323req_submit (eio_req *req)
392{ 324{
393 --grp->size; 325 eio_submit (req);
394 326
395 /* call feeder, if applicable */ 327 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 328 {
401 block_sig (); 329 dSP;
330 SV *cb = sv_2mortal (on_next_submit);
402 331
403 if (!req_invoke (grp)) 332 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 333
410 req_destroy (grp); 334 PUSHMARK (SP);
411 unblock_sig (); 335 PUTBACK;
336 call_sv (cb, G_DISCARD | G_EVAL);
412 } 337 }
413} 338}
414 339
340static int
415static int req_invoke (aio_req req) 341req_invoke (eio_req *req)
416{ 342{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 343 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 344 SvREADONLY_off (req->sv2);
421 345
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 346 if (!EIO_CANCELLED (req) && req->callback)
423 { 347 {
348 dSP;
349 static SV *sv_result_cache; /* caches the result integer SV */
350 SV *sv_result;
351
424 ENTER; 352 ENTER;
425 SAVETMPS; 353 SAVETMPS;
426 PUSHMARK (SP); 354 PUSHMARK (SP);
427 EXTEND (SP, 1); 355 EXTEND (SP, 1);
428 356
357 /* do not recreate the result IV from scratch each time */
358 if (expect_true (sv_result_cache))
359 {
360 sv_result = sv_result_cache; sv_result_cache = 0;
361 SvIV_set (sv_result, req->result);
362 SvIOK_only (sv_result);
363 }
364 else
365 {
366 sv_result = newSViv (req->result);
367 SvREADONLY_on (sv_result);
368 }
369
429 switch (req->type) 370 switch (req->type)
430 { 371 {
372 case EIO_WD_OPEN:
373 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
374 break;
375
431 case REQ_READDIR: 376 case EIO_READDIR:
432 { 377 {
433 SV *rv = &PL_sv_undef; 378 SV *rv = &PL_sv_undef;
434 379
435 if (req->result >= 0) 380 if (req->result >= 0)
436 { 381 {
437 int i; 382 int i;
438 char *buf = req->ptr2; 383 char *names = (char *)req->ptr2;
384 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 385 AV *av = newAV ();
440 386
441 av_extend (av, req->result - 1); 387 av_extend (av, req->result - 1);
442 388
443 for (i = 0; i < req->result; ++i) 389 for (i = 0; i < req->result; ++i)
444 { 390 {
445 SV *sv = newSVpv (buf, 0); 391 if (req->int1 & EIO_READDIR_DENTS)
392 {
393 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 394
395 if (req->int1 & EIO_READDIR_CUSTOM2)
396 {
397 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
398 AV *avent = newAV ();
399
400 av_extend (avent, 2);
401
402 if (!sv_type [ent->type])
403 {
404 sv_type [ent->type] = newSViv (ent->type);
405 SvREADONLY_on (sv_type [ent->type]);
406 }
407
408 av_store (avent, 0, namesv);
409 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
410 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
411
412 av_store (av, i, newRV_noinc ((SV *)avent));
413 }
414 else
447 av_store (av, i, sv); 415 av_store (av, i, namesv);
416
417 ++ent;
418 }
419 else
420 {
421 SV *name = newSVpv (names, 0);
422 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 423 names += SvCUR (name) + 1;
424 }
449 } 425 }
450 426
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 427 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 428 }
453 429
454 PUSHs (rv); 430 PUSHs (rv);
431
432 if (req->int1 & EIO_READDIR_CUSTOM1)
433 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 434 }
456 break; 435 break;
457 436
458 case REQ_OPEN: 437 case EIO_OPEN:
459 { 438 {
460 /* convert fd to fh */ 439 /* convert fd to fh */
461 SV *fh; 440 SV *fh = &PL_sv_undef;
462 441
463 PUSHs (sv_2mortal (newSViv (req->result))); 442 if (req->result >= 0)
464 PUTBACK; 443 {
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 444 GV *gv = (GV *)sv_newmortal ();
466 SPAGAIN; 445 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
446 char sym [64];
447 int symlen;
448
449 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
450 gv_init (gv, aio_stash, sym, symlen, 0);
467 451
468 fh = POPs; 452 symlen = snprintf (
469 PUSHMARK (SP); 453 sym,
454 sizeof (sym),
455 "%s&=%d",
456 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
457 (int)req->result
458 );
459
460 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
461 fh = (SV *)gv;
462 }
463
470 XPUSHs (fh); 464 PUSHs (fh);
471 } 465 }
472 break; 466 break;
473 467
468 case EIO_STATVFS:
469 case EIO_FSTATVFS:
470 {
471 SV *rv = &PL_sv_undef;
472
473#ifndef _WIN32
474 if (req->result >= 0)
475 {
476 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
477 HV *hv = newHV ();
478
479 rv = sv_2mortal (newRV_noinc ((SV *)hv));
480
481 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
482 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
483 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
484 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
485 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
486 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
487 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
488 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
489 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
490 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
491 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
492 }
493#endif
494
495 PUSHs (rv);
496 }
497
498 break;
499
474 case REQ_GROUP: 500 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 501 req->int1 = 2; /* mark group as finished */
476 502
477 if (req->sv1) 503 if (req->sv1)
478 { 504 {
479 int i; 505 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 509 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 510 PUSHs (*av_fetch (av, i, 0));
485 } 511 }
486 break; 512 break;
487 513
488 case REQ_NOP: 514 case EIO_NOP:
489 case REQ_BUSY: 515 case EIO_BUSY:
490 break; 516 break;
491 517
492 case REQ_READLINK: 518 case EIO_READLINK:
519 case EIO_REALPATH:
493 if (req->result > 0) 520 if (req->result > 0)
521 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
522 break;
523
524 case EIO_STAT:
525 case EIO_LSTAT:
526 case EIO_FSTAT:
527 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
528
529 if (!(PL_laststatval = req->result))
530 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
531 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
532
533 PUSHs (sv_result);
534 break;
535
536 case EIO_SEEK:
537 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
538 break;
539
540 case EIO_READ:
541 {
542 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
543 *SvEND (req->sv2) = 0;
544 SvPOK_only (req->sv2);
545 SvSETMAGIC (req->sv2);
546 PUSHs (sv_result);
547 }
548 break;
549
550 case EIO_CUSTOM:
551 if (req->feed == fiemap)
494 { 552 {
495 SvCUR_set (req->sv2, req->result); 553#if HAVE_FIEMAP
496 *SvEND (req->sv2) = 0;
497 PUSHs (req->sv2); 554 if (!req->result)
555 {
556 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
557
558 if (fiemap->fm_extent_count)
559 {
560 AV *av = newAV ();
561 int i;
562
563 while (fiemap->fm_mapped_extents)
564 {
565 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
566 AV *ext_av = newAV ();
567
568 av_store (ext_av, 3, newSVuv (extent->fe_flags));
569 av_store (ext_av, 2, newSVval64 (extent->fe_length));
570 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
571 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
572
573 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
574 }
575
576 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
577 }
578 else
579 {
580 SvIV_set (sv_result, fiemap->fm_mapped_extents);
581 PUSHs (sv_result);
582 }
583 }
584#endif
498 } 585 }
586 else
587 PUSHs (sv_result);
499 break; 588 break;
500 589
501 case REQ_STAT: 590 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502 case REQ_LSTAT: 591 if (req->result > 0)
503 case REQ_FSTAT: 592 SvIV_set (sv_result, 0);
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 593 /* 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;
515 594
516 default: 595 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 596 PUSHs (sv_result);
518 break; 597 break;
519 } 598 }
520 599
521 errno = req->errorno; 600 errno = req->errorno;
522 601
523 PUTBACK; 602 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 603 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 604 SPAGAIN;
605
606 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
607 SvREFCNT_dec (sv_result);
608 else
609 sv_result_cache = sv_result;
526 610
527 FREETMPS; 611 FREETMPS;
528 LEAVE; 612 LEAVE;
613
614 PUTBACK;
529 } 615 }
530 616
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); 617 return !!SvTRUE (ERRSV);
546} 618}
547 619
620static void
548static void req_destroy (aio_req req) 621req_destroy (aio_req req)
549{ 622{
550 if (req->self) 623 if (req->self)
551 { 624 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 625 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 626 SvREFCNT_dec (req->self);
554 } 627 }
555 628
556 SvREFCNT_dec (req->sv1); 629 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 630 SvREFCNT_dec (req->sv2);
631 SvREFCNT_dec (req->sv3);
632 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 633 SvREFCNT_dec (req->callback);
559 634
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 635 free (req);
564} 636}
565 637
638static void
566static void req_cancel_subs (aio_req grp) 639req_cancel_subs (aio_req grp)
567{ 640{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 641 if (grp->type != EIO_GROUP)
571 return; 642 return;
572 643
573 SvREFCNT_dec (grp->sv2); 644 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 645 grp->sv2 = 0;
575 646
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 647 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 648}
579 649
580static void req_cancel (aio_req req) 650static void ecb_cold
651create_respipe (void)
581{ 652{
582 req->flags |= FLAG_CANCELLED; 653 if (s_epipe_renew (&respipe))
583 654 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 655}
586 656
587static void *aio_proc (void *arg); 657static void
588 658poll_wait (void)
589static void start_thread (void)
590{ 659{
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) 660 while (eio_nreqs ())
687 { 661 {
688 int size; 662 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 663
664 X_LOCK (reslock);
690 size = res_queue.size; 665 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 666 X_UNLOCK (reslock);
692 667
693 if (size) 668 if (size)
694 return; 669 return;
695 670
696 maybe_start_thread (); 671 etp_maybe_start_thread ();
697 672
698 FD_ZERO(&rfd); 673 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 674 }
703} 675}
704 676
705static int poll_cb () 677static int
678poll_cb (void)
706{ 679{
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 (;;) 680 for (;;)
720 { 681 {
721 for (;;) 682 int res = eio_poll ();
683
684 if (res > 0)
685 croak (0);
686
687 if (!max_outstanding || max_outstanding > eio_nreqs ())
688 return res;
689
690 poll_wait ();
691 }
692}
693
694static void ecb_cold
695reinit (void)
696{
697 create_respipe ();
698
699 if (eio_init (want_poll, done_poll) < 0)
700 croak ("IO::AIO: unable to initialise eio library");
701}
702
703/*****************************************************************************/
704
705#if !_POSIX_MAPPED_FILES
706# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
707# define munmap(addr,length) EIO_ENOSYS ()
708#endif
709
710#if !_POSIX_MEMORY_PROTECTION
711# define mprotect(addr,len,prot) EIO_ENOSYS ()
712# define PROT_NONE 0
713# define PROT_WRITE 0
714# define MAP_PRIVATE 0
715# define MAP_SHARED 0
716# define MAP_FIXED 0
717#endif
718
719#define MMAP_MAGIC PERL_MAGIC_ext
720
721static int ecb_cold
722mmap_free (pTHX_ SV *sv, MAGIC *mg)
723{
724 int old_errno = errno;
725 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
726 errno = old_errno;
727
728 mg->mg_obj = 0; /* just in case */
729
730 SvREADONLY_off (sv);
731
732 if (SvPVX (sv) != mg->mg_ptr)
733 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
734
735 SvCUR_set (sv, 0);
736 SvPVX (sv) = 0;
737 SvOK_off (sv);
738
739 return 0;
740}
741
742static MGVTBL mmap_vtbl = {
743 0, 0, 0, 0, mmap_free
744};
745
746/*****************************************************************************/
747
748static SV *
749get_cb (SV *cb_sv)
750{
751 SvGETMAGIC (cb_sv);
752 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
753}
754
755static aio_req ecb_noinline
756dreq (SV *callback)
757{
758 SV *cb_cv;
759 aio_req req;
760 int req_pri = next_pri;
761 next_pri = EIO_PRI_DEFAULT;
762
763 cb_cv = get_cb (callback);
764
765 req = calloc (sizeof (*req), 1);
766 if (!req)
767 croak ("out of memory during eio_req allocation");
768
769 req->callback = SvREFCNT_inc (cb_cv);
770 req->pri = req_pri;
771
772 return req;
773}
774
775#define dREQ \
776 aio_req req = dreq (callback); \
777
778#define REQ_SEND \
779 PUTBACK; \
780 req_submit (req); \
781 SPAGAIN; \
782 \
783 if (GIMME_V != G_VOID) \
784 XPUSHs (req_sv (req, aio_req_stash));
785
786ecb_inline void
787req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
788{
789 if (expect_false (SvROK (path)))
790 {
791 SV *rv = SvRV (path);
792 SV *wdob;
793
794 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 795 {
723 maybe_start_thread (); 796 path = AvARRAY (rv)[1];
797 wdob = AvARRAY (rv)[0];
724 798
725 LOCK (reslock); 799 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 800 {
730 --npending; 801 *wd = SvAIO_WD (wdob);
731 802 *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 } 803 }
753 else 804 else
754 { 805 *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 } 806 }
807 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
808 {
809 *wd = (aio_wd)(long)SvIVX (rv);
810 *wdsv = SvREFCNT_inc_NN (rv);
811 *ptr = ".";
812 return; /* path set to "." */
813 }
814 else
815 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
816 }
778 817
779 if (nreqs <= max_outstanding) 818 *pathsv = newSVsv (path);
819 *ptr = SvPVbyte_nolen (*pathsv);
820}
821
822static void ecb_noinline
823req_set_path1 (aio_req req, SV *path)
824{
825 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
826}
827
828static void ecb_noinline
829req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
830{
831 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
832
833 switch (SvTYPE (rv))
834 {
835 case SVt_PVIO:
836 case SVt_PVLV:
837 case SVt_PVGV:
838 req->type = type_fh;
839 req->sv1 = newSVsv (fh_or_path);
840 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 841 break;
781 842
782 poll_wait (); 843 default:
783 844 req->type = type_path;
784 ++maxreqs; 845 req_set_path1 (req, fh_or_path);
846 break;
785 } 847 }
786
787 unblock_sig ();
788 return count;
789} 848}
790 849
791static void create_pipe () 850XS(boot_IO__AIO) ecb_cold;
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795 851
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 852MODULE = IO::AIO PACKAGE = IO::AIO
1337 853
1338PROTOTYPES: ENABLE 854PROTOTYPES: ENABLE
1339 855
1340BOOT: 856BOOT:
1341{ 857{
858 static const struct {
859 const char *name;
860 IV iv;
861 } *civ, const_iv[] = {
862# define const_niv(name, value) { # name, (IV) value },
863# define const_iv(name) { # name, (IV) name },
864# define const_eio(name) { # name, (IV) EIO_ ## name },
865
866 /* you have to re-run ./gendef0 after adding/Removing any constants here */
867
868 const_iv (ENOSYS)
869 const_iv (EXDEV)
870 const_iv (EBADR)
871
872 const_iv (O_RDONLY)
873 const_iv (O_WRONLY)
874 const_iv (O_RDWR)
875 const_iv (O_CREAT)
876 const_iv (O_TRUNC)
877 const_iv (O_EXCL)
878 const_iv (O_APPEND)
879
880 const_iv (O_ASYNC)
881 const_iv (O_DIRECT)
882 const_iv (O_NOATIME)
883
884 const_iv (O_CLOEXEC)
885 const_iv (O_NOCTTY)
886 const_iv (O_NOFOLLOW)
887 const_iv (O_NONBLOCK)
888 const_iv (O_EXEC)
889 const_iv (O_SEARCH)
890 const_iv (O_DIRECTORY)
891 const_iv (O_DSYNC)
892 const_iv (O_RSYNC)
893 const_iv (O_SYNC)
894 const_iv (O_TTY_INIT)
895
896 const_iv (S_IFIFO)
897 const_iv (S_IFCHR)
898 const_iv (S_IFBLK)
899 const_iv (S_IFLNK)
900 const_iv (S_IFREG)
901 const_iv (S_IFDIR)
902 const_iv (S_IFWHT)
903 const_iv (S_IFSOCK)
904 const_iv (S_IFMT)
905
906 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
907 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
908 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
909 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
910 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
911 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
912
913 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
914 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
915 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
916 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
917 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
918
919 const_iv (ST_RDONLY)
920 const_iv (ST_NOSUID)
921 const_iv (ST_NODEV)
922 const_iv (ST_NOEXEC)
923 const_iv (ST_SYNCHRONOUS)
924 const_iv (ST_MANDLOCK)
925 const_iv (ST_WRITE)
926 const_iv (ST_APPEND)
927 const_iv (ST_IMMUTABLE)
928 const_iv (ST_NOATIME)
929 const_iv (ST_NODIRATIME)
930 const_iv (ST_RELATIME)
931
932 const_iv (PROT_NONE)
933 const_iv (PROT_EXEC)
934 const_iv (PROT_READ)
935 const_iv (PROT_WRITE)
936
937 /*const_iv (MAP_FIXED)*/
938 const_iv (MAP_PRIVATE)
939 const_iv (MAP_SHARED)
940 const_iv (MAP_ANONYMOUS)
941
942 /* linuxish */
943 const_iv (MAP_HUGETLB)
944 const_iv (MAP_LOCKED)
945 const_iv (MAP_NORESERVE)
946 const_iv (MAP_POPULATE)
947 const_iv (MAP_NONBLOCK)
948
949 const_iv (FIEMAP_FLAG_SYNC)
950 const_iv (FIEMAP_FLAG_XATTR)
951 const_iv (FIEMAP_FLAGS_COMPAT)
952 const_iv (FIEMAP_EXTENT_LAST)
953 const_iv (FIEMAP_EXTENT_UNKNOWN)
954 const_iv (FIEMAP_EXTENT_DELALLOC)
955 const_iv (FIEMAP_EXTENT_ENCODED)
956 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
957 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
958 const_iv (FIEMAP_EXTENT_DATA_INLINE)
959 const_iv (FIEMAP_EXTENT_DATA_TAIL)
960 const_iv (FIEMAP_EXTENT_UNWRITTEN)
961 const_iv (FIEMAP_EXTENT_MERGED)
962 const_iv (FIEMAP_EXTENT_SHARED)
963
964 const_iv (SPLICE_F_MOVE)
965 const_iv (SPLICE_F_NONBLOCK)
966 const_iv (SPLICE_F_MORE)
967 const_iv (SPLICE_F_GIFT)
968
969 const_iv (SEEK_DATA)
970 const_iv (SEEK_HOLE)
971
972 /* libeio constants */
973 const_eio (SEEK_SET)
974 const_eio (SEEK_CUR)
975 const_eio (SEEK_END)
976
977 const_eio (MCL_FUTURE)
978 const_eio (MCL_CURRENT)
979
980 const_eio (MS_ASYNC)
981 const_eio (MS_INVALIDATE)
982 const_eio (MS_SYNC)
983
984 const_eio (MT_MODIFY)
985
986 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
987 const_eio (SYNC_FILE_RANGE_WRITE)
988 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
989
990 const_eio (FALLOC_FL_KEEP_SIZE)
991 const_eio (FALLOC_FL_PUNCH_HOLE)
992
993 const_eio (READDIR_DENTS)
994 const_eio (READDIR_DIRS_FIRST)
995 const_eio (READDIR_STAT_ORDER)
996 const_eio (READDIR_FOUND_UNKNOWN)
997
998 const_eio (DT_UNKNOWN)
999 const_eio (DT_FIFO)
1000 const_eio (DT_CHR)
1001 const_eio (DT_DIR)
1002 const_eio (DT_BLK)
1003 const_eio (DT_REG)
1004 const_eio (DT_LNK)
1005 const_eio (DT_SOCK)
1006 const_eio (DT_WHT)
1007 };
1008
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1009 aio_stash = gv_stashpv ("IO::AIO" , 1);
1010 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1011 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1012 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1013
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1014 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1015 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 1016
1352 create_pipe (); 1017 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1018
1019 reinit ();
1020}
1021
1356void 1022void
1023reinit ()
1024 PROTOTYPE:
1025
1026void
1357max_poll_reqs (int nreqs) 1027max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1028 PROTOTYPE: $
1359 CODE: 1029 CODE:
1360 max_poll_reqs = nreqs; 1030 eio_set_max_poll_reqs (nreqs);
1361 1031
1362void 1032void
1363max_poll_time (double nseconds) 1033max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1034 PROTOTYPE: $
1365 CODE: 1035 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1036 eio_set_max_poll_time (nseconds);
1367 1037
1368void 1038void
1369min_parallel (int nthreads) 1039min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1040 PROTOTYPE: $
1379 CODE: 1041 CODE:
1380 set_max_idle (nthreads); 1042 eio_set_min_parallel (nthreads);
1381 1043
1382int 1044void
1383max_outstanding (int maxreqs) 1045max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1046 PROTOTYPE: $
1385 CODE: 1047 CODE:
1386 RETVAL = max_outstanding; 1048 eio_set_max_parallel (nthreads);
1049
1050void
1051max_idle (unsigned int nthreads)
1052 PROTOTYPE: $
1053 CODE:
1054 eio_set_max_idle (nthreads);
1055
1056void
1057idle_timeout (unsigned int seconds)
1058 PROTOTYPE: $
1059 CODE:
1060 eio_set_idle_timeout (seconds);
1061
1062void
1063max_outstanding (unsigned int maxreqs)
1064 PROTOTYPE: $
1065 CODE:
1387 max_outstanding = maxreqs; 1066 max_outstanding = maxreqs;
1388 OUTPUT: 1067
1389 RETVAL 1068void
1069aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1070 PPCODE:
1071{
1072 dREQ;
1073
1074 req->type = EIO_WD_OPEN;
1075 req_set_path1 (req, pathname);
1076
1077 REQ_SEND;
1078}
1390 1079
1391void 1080void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1081aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1082 PPCODE:
1395{ 1083{
1396 dREQ; 1084 dREQ;
1397 1085
1398 req->type = REQ_OPEN; 1086 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1087 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1088 req->int1 = flags;
1402 req->mode = mode; 1089 req->int2 = mode;
1403 1090
1404 REQ_SEND; 1091 REQ_SEND;
1405} 1092}
1406 1093
1407void 1094void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1095aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1096 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1097 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1098 aio_fdatasync = EIO_FDATASYNC
1099 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1100 PPCODE:
1415{ 1101{
1102 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1103 dREQ;
1417 1104
1418 req->type = ix; 1105 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1106 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1107 req->int1 = fd;
1421 1108
1422 REQ_SEND (req); 1109 REQ_SEND;
1423} 1110}
1424 1111
1425void 1112void
1113aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1114 PPCODE:
1115{
1116 int fd = s_fileno_croak (fh, 0);
1117 dREQ;
1118
1119 req->type = EIO_SYNC_FILE_RANGE;
1120 req->sv1 = newSVsv (fh);
1121 req->int1 = fd;
1122 req->offs = offset;
1123 req->size = nbytes;
1124 req->int2 = flags;
1125
1126 REQ_SEND;
1127}
1128
1129void
1130aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1131 PPCODE:
1132{
1133 int fd = s_fileno_croak (fh, 0);
1134 dREQ;
1135
1136 req->type = EIO_FALLOCATE;
1137 req->sv1 = newSVsv (fh);
1138 req->int1 = fd;
1139 req->int2 = mode;
1140 req->offs = offset;
1141 req->size = len;
1142
1143 REQ_SEND;
1144}
1145
1146void
1147aio_close (SV *fh, SV *callback=&PL_sv_undef)
1148 PPCODE:
1149{
1150 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1151 int fd = s_fileno_croak (fh, 0);
1152 dREQ;
1153
1154 if (expect_false (close_fd < 0))
1155 {
1156 int pipefd [2];
1157
1158 if (
1159#ifdef _WIN32
1160 _pipe (pipefd, 1, _O_BINARY) < 0
1161#else
1162 pipe (pipefd) < 0
1163 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1164#endif
1165 || close (pipefd [1]) < 0
1166 )
1167 abort (); /*D*/
1168
1169 close_fd = pipefd [0];
1170 }
1171
1172 req->type = EIO_DUP2;
1173 req->int1 = close_fd;
1174 req->sv2 = newSVsv (fh);
1175 req->int2 = fd;
1176
1177 REQ_SEND;
1178}
1179
1180void
1181aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1182 PPCODE:
1183{
1184 int fd = s_fileno_croak (fh, 0);
1185 dREQ;
1186
1187 req->type = EIO_SEEK;
1188 req->sv1 = newSVsv (fh);
1189 req->int1 = fd;
1190 req->offs = SvVAL64 (offset);
1191 req->int2 = whence;
1192
1193 REQ_SEND;
1194}
1195
1196void
1426aio_read (SV *fh, SV *offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1427 ALIAS: 1198 ALIAS:
1428 aio_read = REQ_READ 1199 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1200 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1201 PPCODE:
1432{ 1202{
1433 STRLEN svlen; 1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1205 char *svptr = SvPVbyte (data, svlen);
1435 1206 UV len = SvUV (length);
1436 SvUPGRADE (data, SVt_PV);
1437 SvPOK_on (data);
1438 1207
1439 if (dataoffset < 0) 1208 if (dataoffset < 0)
1440 dataoffset += svlen; 1209 dataoffset += svlen;
1441 1210
1442 if (dataoffset < 0 || dataoffset > svlen) 1211 if (dataoffset < 0 || dataoffset > svlen)
1443 croak ("data offset outside of string"); 1212 croak ("dataoffset outside of data scalar");
1444 1213
1445 if (ix == REQ_WRITE) 1214 if (ix == EIO_WRITE)
1446 { 1215 {
1447 /* write: check length and adjust. */ 1216 /* write: check length and adjust. */
1448 if (length < 0 || length + dataoffset > svlen) 1217 if (!SvOK (length) || len + dataoffset > svlen)
1449 length = svlen - dataoffset; 1218 len = svlen - dataoffset;
1450 } 1219 }
1451 else 1220 else
1452 { 1221 {
1453 /* read: grow scalar as necessary */ 1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1224 if (SvLEN (data) >= SvCUR (data))
1454 svptr = SvGROW (data, length + dataoffset + 1); 1225 svptr = SvGROW (data, len + dataoffset + 1);
1226 else if (SvCUR (data) < len + dataoffset)
1227 croak ("length + dataoffset outside of scalar, and cannot grow");
1455 } 1228 }
1456
1457 if (length < 0)
1458 croak ("length must not be negative");
1459 1229
1460 { 1230 {
1461 dREQ; 1231 dREQ;
1462 1232
1463 req->type = ix; 1233 req->type = ix;
1464 req->sv1 = newSVsv (fh); 1234 req->sv1 = newSVsv (fh);
1465 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1235 req->int1 = fd;
1466 : IoOFP (sv_2io (fh)));
1467 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1236 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1468 req->size = length; 1237 req->size = len;
1469 req->sv2 = SvREFCNT_inc (data); 1238 req->sv2 = SvREFCNT_inc (data);
1470 req->ptr1 = (char *)svptr + dataoffset; 1239 req->ptr2 = (char *)svptr + dataoffset;
1471 req->stroffset = dataoffset; 1240 req->stroffset = dataoffset;
1472 1241
1473 if (!SvREADONLY (data)) 1242 if (!SvREADONLY (data))
1474 { 1243 {
1475 SvREADONLY_on (data); 1244 SvREADONLY_on (data);
… …
1479 REQ_SEND; 1248 REQ_SEND;
1480 } 1249 }
1481} 1250}
1482 1251
1483void 1252void
1484aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1253aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1485 PROTOTYPE: $$;$ 1254 ALIAS:
1255 aio_readlink = EIO_READLINK
1256 aio_realpath = EIO_REALPATH
1486 PPCODE: 1257 PPCODE:
1487{ 1258{
1488 SV *data;
1489 dREQ; 1259 dREQ;
1490 1260
1491 data = newSV (NAME_MAX);
1492 SvPOK_on (data);
1493
1494 req->type = REQ_READLINK; 1261 req->type = ix;
1495 req->sv1 = newSVsv (path); 1262 req_set_path1 (req, pathname);
1496 req->ptr2 = SvPVbyte_nolen (req->sv1);
1497 req->sv2 = data;
1498 req->ptr1 = SvPVbyte_nolen (data);
1499 1263
1500 REQ_SEND; 1264 REQ_SEND;
1501} 1265}
1502 1266
1503void 1267void
1504aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1268aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $$$$;$
1506 PPCODE: 1269 PPCODE:
1507{ 1270{
1271 int ifd = s_fileno_croak (in_fh , 0);
1272 int ofd = s_fileno_croak (out_fh, 1);
1508 dREQ; 1273 dREQ;
1509 1274
1510 req->type = REQ_SENDFILE; 1275 req->type = EIO_SENDFILE;
1511 req->sv1 = newSVsv (out_fh); 1276 req->sv1 = newSVsv (out_fh);
1512 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1277 req->int1 = ofd;
1513 req->sv2 = newSVsv (in_fh); 1278 req->sv2 = newSVsv (in_fh);
1514 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1279 req->int2 = ifd;
1515 req->offs = SvVAL64 (in_offset); 1280 req->offs = in_offset;
1516 req->size = length; 1281 req->size = length;
1517 1282
1518 REQ_SEND; 1283 REQ_SEND;
1519} 1284}
1520 1285
1521void 1286void
1522aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1287aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1523 PROTOTYPE: $$$;$
1524 PPCODE: 1288 PPCODE:
1525{ 1289{
1290 int fd = s_fileno_croak (fh, 0);
1526 dREQ; 1291 dREQ;
1527 1292
1528 req->type = REQ_READAHEAD; 1293 req->type = EIO_READAHEAD;
1529 req->sv1 = newSVsv (fh); 1294 req->sv1 = newSVsv (fh);
1530 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1295 req->int1 = fd;
1531 req->offs = SvVAL64 (offset); 1296 req->offs = offset;
1532 req->size = length; 1297 req->size = length;
1533 1298
1534 REQ_SEND; 1299 REQ_SEND;
1535} 1300}
1536 1301
1537void 1302void
1538aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1303aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1539 ALIAS: 1304 ALIAS:
1540 aio_stat = REQ_STAT 1305 aio_stat = EIO_STAT
1541 aio_lstat = REQ_LSTAT 1306 aio_lstat = EIO_LSTAT
1307 aio_statvfs = EIO_STATVFS
1542 PPCODE: 1308 PPCODE:
1543{ 1309{
1544 dREQ; 1310 dREQ;
1545 1311
1546 req->ptr2 = malloc (sizeof (Stat_t)); 1312 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 1313
1567 REQ_SEND; 1314 REQ_SEND;
1568} 1315}
1316
1317UV
1318major (UV dev)
1319 ALIAS:
1320 minor = 1
1321 CODE:
1322 RETVAL = ix ? major (dev) : minor (dev);
1323 OUTPUT:
1324 RETVAL
1325
1326UV
1327makedev (UV maj, UV min)
1328 CODE:
1329 RETVAL = makedev (maj, min);
1330 OUTPUT:
1331 RETVAL
1569 1332
1570void 1333void
1571aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1334aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1572 PPCODE: 1335 PPCODE:
1573{ 1336{
1574 dREQ; 1337 dREQ;
1575 1338
1576 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1339 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1577 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1340 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1578 req->sv1 = newSVsv (fh_or_path); 1341 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1579 1342
1580 if (SvPOK (fh_or_path)) 1343 REQ_SEND;
1581 { 1344}
1582 req->type = REQ_UTIME; 1345
1583 req->ptr1 = SvPVbyte_nolen (req->sv1); 1346void
1584 } 1347aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1585 else 1348 PPCODE:
1586 { 1349{
1587 req->type = REQ_FUTIME; 1350 dREQ;
1588 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1351
1589 } 1352 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1353 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1590 1354
1591 REQ_SEND; 1355 REQ_SEND;
1592} 1356}
1593 1357
1594void 1358void
1595aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1359aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1596 PPCODE: 1360 PPCODE:
1597{ 1361{
1598 dREQ; 1362 dREQ;
1599 1363
1600 req->mode = mode; 1364 req->int2 = mode;
1601 req->sv1 = newSVsv (fh_or_path); 1365 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, 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 1366
1614 REQ_SEND; 1367 REQ_SEND;
1615} 1368}
1616 1369
1617void 1370void
… …
1620{ 1373{
1621 dREQ; 1374 dREQ;
1622 1375
1623 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1376 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1624 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1377 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1625 req->sv1 = newSVsv (fh_or_path); 1378 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1626 1379
1627 if (SvPOK (fh_or_path)) 1380 REQ_SEND;
1628 { 1381}
1629 req->type = REQ_CHOWN; 1382
1630 req->ptr1 = SvPVbyte_nolen (req->sv1); 1383void
1631 } 1384aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1632 else 1385 PPCODE:
1633 { 1386{
1634 req->type = REQ_FCHOWN; 1387 dREQ;
1635 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1388
1636 } 1389 req->type = EIO_READDIR;
1390 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1391
1392 if (flags & EIO_READDIR_DENTS)
1393 req->int1 |= EIO_READDIR_CUSTOM2;
1394
1395 req_set_path1 (req, pathname);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1402 PPCODE:
1403{
1404 dREQ;
1405
1406 req->type = EIO_MKDIR;
1407 req->int2 = mode;
1408 req_set_path1 (req, pathname);
1637 1409
1638 REQ_SEND; 1410 REQ_SEND;
1639} 1411}
1640 1412
1641void 1413void
1642aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1414aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1643 ALIAS: 1415 ALIAS:
1644 aio_unlink = REQ_UNLINK 1416 aio_unlink = EIO_UNLINK
1645 aio_rmdir = REQ_RMDIR 1417 aio_rmdir = EIO_RMDIR
1646 aio_readdir = REQ_READDIR 1418 aio_readdir = EIO_READDIR
1647 PPCODE: 1419 PPCODE:
1648{ 1420{
1649 dREQ; 1421 dREQ;
1650 1422
1651 req->type = ix; 1423 req->type = ix;
1652 req->sv1 = newSVsv (pathname); 1424 req_set_path1 (req, pathname);
1653 req->ptr1 = SvPVbyte_nolen (req->sv1);
1654
1655 REQ_SEND;
1656}
1657
1658void
1659aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1660 PPCODE:
1661{
1662 dREQ;
1663
1664 req->type = REQ_MKDIR;
1665 req->sv1 = newSVsv (pathname);
1666 req->ptr1 = SvPVbyte_nolen (req->sv1);
1667 req->mode = mode;
1668 1425
1669 REQ_SEND; 1426 REQ_SEND;
1670} 1427}
1671 1428
1672void 1429void
1673aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1430aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1674 ALIAS: 1431 ALIAS:
1675 aio_link = REQ_LINK 1432 aio_link = EIO_LINK
1676 aio_symlink = REQ_SYMLINK 1433 aio_symlink = EIO_SYMLINK
1677 aio_rename = REQ_RENAME 1434 aio_rename = EIO_RENAME
1678 PPCODE: 1435 PPCODE:
1679{ 1436{
1437 eio_wd wd2 = 0;
1680 dREQ; 1438 dREQ;
1681 1439
1682 req->type = ix; 1440 req->type = ix;
1683 req->sv2 = newSVsv (oldpath); 1441 req_set_path1 (req, oldpath);
1684 req->ptr2 = SvPVbyte_nolen (req->sv2); 1442 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1685 req->sv1 = newSVsv (newpath); 1443 req->int3 = (long)wd2;
1686 req->ptr1 = SvPVbyte_nolen (req->sv1);
1687 1444
1688 REQ_SEND; 1445 REQ_SEND;
1689} 1446}
1690 1447
1691void 1448void
1692aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1449aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1693 PPCODE: 1450 PPCODE:
1694{ 1451{
1695 dREQ; 1452 dREQ;
1696 1453
1697 req->type = REQ_MKNOD; 1454 req->type = EIO_MKNOD;
1698 req->sv1 = newSVsv (pathname);
1699 req->ptr1 = SvPVbyte_nolen (req->sv1);
1700 req->mode = (mode_t)mode; 1455 req->int2 = (mode_t)mode;
1701 req->offs = dev; 1456 req->offs = dev;
1457 req_set_path1 (req, pathname);
1702 1458
1703 REQ_SEND; 1459 REQ_SEND;
1704} 1460}
1705 1461
1706void 1462void
1463aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1464 ALIAS:
1465 aio_mtouch = EIO_MTOUCH
1466 aio_msync = EIO_MSYNC
1467 PPCODE:
1468{
1469 STRLEN svlen;
1470 char *svptr = SvPVbyte (data, svlen);
1471 UV len = SvUV (length);
1472
1473 if (offset < 0)
1474 offset += svlen;
1475
1476 if (offset < 0 || offset > svlen)
1477 croak ("offset outside of scalar");
1478
1479 if (!SvOK (length) || len + offset > svlen)
1480 len = svlen - offset;
1481
1482 {
1483 dREQ;
1484
1485 req->type = ix;
1486 req->sv2 = SvREFCNT_inc (data);
1487 req->ptr2 = (char *)svptr + offset;
1488 req->size = len;
1489 req->int1 = flags;
1490
1491 REQ_SEND;
1492 }
1493}
1494
1495void
1496aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1497 PPCODE:
1498{
1499 STRLEN svlen;
1500 char *svptr = SvPVbyte (data, svlen);
1501 UV len = SvUV (length);
1502
1503 if (offset < 0)
1504 offset += svlen;
1505
1506 if (offset < 0 || offset > svlen)
1507 croak ("offset outside of scalar");
1508
1509 if (!SvOK (length) || len + offset > svlen)
1510 len = svlen - offset;
1511
1512 {
1513 dREQ;
1514
1515 req->type = EIO_MLOCK;
1516 req->sv2 = SvREFCNT_inc (data);
1517 req->ptr2 = (char *)svptr + offset;
1518 req->size = len;
1519
1520 REQ_SEND;
1521 }
1522}
1523
1524void
1525aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1526 PPCODE:
1527{
1528 dREQ;
1529
1530 req->type = EIO_MLOCKALL;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534}
1535
1536void
1537aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_CUSTOM;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546
1547 req->feed = fiemap;
1548#if HAVE_FIEMAP
1549 /* keep our fingers crossed that the next two types are 64 bit */
1550 req->offs = start;
1551 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1552 req->int2 = flags;
1553 req->int3 = SvOK (count) ? SvIV (count) : -1;
1554#endif
1555
1556 REQ_SEND;
1557}
1558
1559void
1707aio_busy (double delay, SV *callback=&PL_sv_undef) 1560aio_busy (double delay, SV *callback=&PL_sv_undef)
1708 PPCODE: 1561 PPCODE:
1709{ 1562{
1710 dREQ; 1563 dREQ;
1711 1564
1712 req->type = REQ_BUSY; 1565 req->type = EIO_BUSY;
1713 req->nv1 = delay < 0. ? 0. : delay; 1566 req->nv1 = delay < 0. ? 0. : delay;
1714 1567
1715 REQ_SEND; 1568 REQ_SEND;
1716} 1569}
1717 1570
1718void 1571void
1719aio_group (SV *callback=&PL_sv_undef) 1572aio_group (SV *callback=&PL_sv_undef)
1720 PROTOTYPE: ;$
1721 PPCODE: 1573 PPCODE:
1722{ 1574{
1723 dREQ; 1575 dREQ;
1724 1576
1725 req->type = REQ_GROUP; 1577 req->type = EIO_GROUP;
1726 1578
1727 req_send (req); 1579 req_submit (req);
1728 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1580 XPUSHs (req_sv (req, aio_grp_stash));
1729} 1581}
1730 1582
1731void 1583void
1732aio_nop (SV *callback=&PL_sv_undef) 1584aio_nop (SV *callback=&PL_sv_undef)
1585 ALIAS:
1586 aio_nop = EIO_NOP
1587 aio_sync = EIO_SYNC
1733 PPCODE: 1588 PPCODE:
1734{ 1589{
1735 dREQ; 1590 dREQ;
1736 1591
1737 req->type = REQ_NOP; 1592 req->type = ix;
1738 1593
1739 REQ_SEND; 1594 REQ_SEND;
1740} 1595}
1741 1596
1742int 1597int
1743aioreq_pri (int pri = 0) 1598aioreq_pri (int pri = 0)
1744 PROTOTYPE: ;$
1745 CODE: 1599 CODE:
1746 RETVAL = next_pri - PRI_BIAS; 1600 RETVAL = next_pri;
1747 if (items > 0) 1601 if (items > 0)
1748 { 1602 {
1749 if (pri < PRI_MIN) pri = PRI_MIN; 1603 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1750 if (pri > PRI_MAX) pri = PRI_MAX; 1604 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1751 next_pri = pri + PRI_BIAS; 1605 next_pri = pri;
1752 } 1606 }
1753 OUTPUT: 1607 OUTPUT:
1754 RETVAL 1608 RETVAL
1755 1609
1756void 1610void
1757aioreq_nice (int nice = 0) 1611aioreq_nice (int nice = 0)
1758 CODE: 1612 CODE:
1759 nice = next_pri - nice; 1613 nice = next_pri - nice;
1760 if (nice < PRI_MIN) nice = PRI_MIN; 1614 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1761 if (nice > PRI_MAX) nice = PRI_MAX; 1615 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1762 next_pri = nice + PRI_BIAS; 1616 next_pri = nice;
1763 1617
1764void 1618void
1765flush () 1619flush ()
1766 PROTOTYPE:
1767 CODE: 1620 CODE:
1768 while (nreqs) 1621 while (eio_nreqs ())
1769 { 1622 {
1770 poll_wait (); 1623 poll_wait ();
1771 poll_cb (); 1624 poll_cb ();
1772 } 1625 }
1773 1626
1774int 1627int
1775poll() 1628poll ()
1776 PROTOTYPE:
1777 CODE: 1629 CODE:
1778 poll_wait (); 1630 poll_wait ();
1779 RETVAL = poll_cb (); 1631 RETVAL = poll_cb ();
1780 OUTPUT: 1632 OUTPUT:
1781 RETVAL 1633 RETVAL
1782 1634
1783int 1635int
1784poll_fileno() 1636poll_fileno ()
1785 PROTOTYPE:
1786 CODE: 1637 CODE:
1787 RETVAL = respipe [0]; 1638 RETVAL = s_epipe_fd (&respipe);
1788 OUTPUT: 1639 OUTPUT:
1789 RETVAL 1640 RETVAL
1790 1641
1791int 1642int
1792poll_cb(...) 1643poll_cb (...)
1793 PROTOTYPE: 1644 PROTOTYPE:
1794 CODE: 1645 CODE:
1795 RETVAL = poll_cb (); 1646 RETVAL = poll_cb ();
1796 OUTPUT: 1647 OUTPUT:
1797 RETVAL 1648 RETVAL
1798 1649
1799void 1650void
1800poll_wait() 1651poll_wait ()
1801 PROTOTYPE:
1802 CODE: 1652 CODE:
1803 poll_wait (); 1653 poll_wait ();
1804 1654
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 1655int
1843nreqs() 1656nreqs ()
1844 PROTOTYPE:
1845 CODE: 1657 CODE:
1846 RETVAL = nreqs; 1658 RETVAL = eio_nreqs ();
1847 OUTPUT: 1659 OUTPUT:
1848 RETVAL 1660 RETVAL
1849 1661
1850int 1662int
1851nready() 1663nready ()
1852 PROTOTYPE:
1853 CODE: 1664 CODE:
1854 RETVAL = get_nready (); 1665 RETVAL = eio_nready ();
1855 OUTPUT: 1666 OUTPUT:
1856 RETVAL 1667 RETVAL
1857 1668
1858int 1669int
1859npending() 1670npending ()
1860 PROTOTYPE:
1861 CODE: 1671 CODE:
1862 RETVAL = get_npending (); 1672 RETVAL = eio_npending ();
1863 OUTPUT: 1673 OUTPUT:
1864 RETVAL 1674 RETVAL
1865 1675
1866int 1676int
1867nthreads() 1677nthreads ()
1868 PROTOTYPE:
1869 CODE: 1678 CODE:
1870 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1679 RETVAL = eio_nthreads ();
1871 RETVAL = started;
1872 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1873 OUTPUT: 1680 OUTPUT:
1874 RETVAL 1681 RETVAL
1875 1682
1683int
1684fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1685 CODE:
1686 RETVAL = posix_fadvise (fh, offset, length, advice);
1687 OUTPUT:
1688 RETVAL
1689
1690IV
1691sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1692 CODE:
1693 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1694 OUTPUT:
1695 RETVAL
1696
1697void
1698mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1699 PPCODE:
1700 sv_unmagic (scalar, MMAP_MAGIC);
1701{
1702 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1703 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1704 if (addr == (void *)-1)
1705 XSRETURN_NO;
1706
1707 sv_force_normal (scalar);
1708
1709 /* we store the length in mg_obj, as namlen is I32 :/ */
1710 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1711 ->mg_obj = (SV *)length;
1712
1713 SvUPGRADE (scalar, SVt_PV); /* nop... */
1714
1715 if (!(prot & PROT_WRITE))
1716 SvREADONLY_on (scalar);
1717
1718 if (SvLEN (scalar))
1719 Safefree (SvPVX (scalar));
1720
1721 SvPVX (scalar) = (char *)addr;
1722 SvCUR_set (scalar, length);
1723 SvLEN_set (scalar, 0);
1724 SvPOK_only (scalar);
1725
1726 XSRETURN_YES;
1727}
1728
1729void
1730munmap (SV *scalar)
1731 CODE:
1732 sv_unmagic (scalar, MMAP_MAGIC);
1733
1734int
1735madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1736 ALIAS:
1737 mprotect = 1
1738 CODE:
1739{
1740 STRLEN svlen;
1741 void *addr = SvPVbyte (scalar, svlen);
1742 size_t len = SvUV (length);
1743
1744 if (offset < 0)
1745 offset += svlen;
1746
1747 if (offset < 0 || offset > svlen)
1748 croak ("offset outside of scalar");
1749
1750 if (!SvOK (length) || len + offset > svlen)
1751 len = svlen - offset;
1752
1753 addr = (void *)(((intptr_t)addr) + offset);
1754 eio_page_align (&addr, &len);
1755
1756 switch (ix)
1757 {
1758 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1759 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1760 }
1761}
1762 OUTPUT:
1763 RETVAL
1764
1765int
1766munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1767 CODE:
1768{
1769 STRLEN svlen;
1770 void *addr = SvPVbyte (scalar, svlen);
1771 size_t len = SvUV (length);
1772
1773 if (offset < 0)
1774 offset += svlen;
1775
1776 if (offset < 0 || offset > svlen)
1777 croak ("offset outside of scalar");
1778
1779 if (!SvOK (length) || len + offset > svlen)
1780 len = svlen - offset;
1781
1782 addr = (void *)(((intptr_t)addr) + offset);
1783 eio_page_align (&addr, &len);
1784#if _POSIX_MEMLOCK_RANGE
1785 RETVAL = munlock (addr, len);
1786#else
1787 RETVAL = EIO_ENOSYS ();
1788#endif
1789}
1790 OUTPUT:
1791 RETVAL
1792
1793int
1794munlockall ()
1795 CODE:
1796#if _POSIX_MEMLOCK
1797 munlockall ();
1798#else
1799 RETVAL = EIO_ENOSYS ();
1800#endif
1801 OUTPUT:
1802 RETVAL
1803
1804int
1805splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1806 CODE:
1807{
1808#if HAVE_LINUX_SPLICE
1809 loff_t off_in_, off_out_;
1810 RETVAL = splice (
1811 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1812 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1813 length, flags
1814 );
1815#else
1816 RETVAL = EIO_ENOSYS ();
1817#endif
1818}
1819 OUTPUT:
1820 RETVAL
1821
1822int
1823tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1824 CODE:
1825#if HAVE_LINUX_SPLICE
1826 RETVAL = tee (rfh, wfh, length, flags);
1827#else
1828 RETVAL = EIO_ENOSYS ();
1829#endif
1830 OUTPUT:
1831 RETVAL
1832
1833void _on_next_submit (SV *cb)
1834 CODE:
1835 SvREFCNT_dec (on_next_submit);
1836 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1837
1876PROTOTYPES: DISABLE 1838PROTOTYPES: DISABLE
1839
1840MODULE = IO::AIO PACKAGE = IO::AIO::WD
1841
1842BOOT:
1843{
1844 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1845 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1846}
1847
1848void
1849DESTROY (SV *self)
1850 CODE:
1851{
1852 aio_wd wd = SvAIO_WD (self);
1853#if HAVE_AT
1854 {
1855 SV *callback = &PL_sv_undef;
1856 dREQ; /* clobbers next_pri :/ */
1857 next_pri = req->pri; /* restore next_pri */
1858 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1859 req->type = EIO_WD_CLOSE;
1860 req->wd = wd;
1861 REQ_SEND;
1862 }
1863#else
1864 eio_wd_close_sync (wd);
1865#endif
1866}
1877 1867
1878MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1868MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1879 1869
1880void 1870void
1881cancel (aio_req_ornot req) 1871cancel (aio_req_ornot req)
1882 CODE: 1872 CODE:
1883 req_cancel (req); 1873 eio_cancel (req);
1884 1874
1885void 1875void
1886cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1876cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1887 CODE: 1877 PPCODE:
1878{
1879 if (GIMME_V != G_VOID)
1880 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1881
1882 if (items > 1)
1883 {
1884 SV *cb_cv =get_cb (callback);
1885
1888 SvREFCNT_dec (req->callback); 1886 SvREFCNT_dec (req->callback);
1889 req->callback = newSVsv (callback); 1887 req->callback = SvREFCNT_inc (cb_cv);
1888 }
1889}
1890 1890
1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1892 1892
1893void 1893void
1894add (aio_req grp, ...) 1894add (aio_req grp, ...)
1895 PPCODE: 1895 PPCODE:
1896{ 1896{
1897 int i; 1897 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 1898
1903 if (grp->int1 == 2) 1899 if (grp->int1 == 2)
1904 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1900 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1905 1901
1906 for (i = 1; i < items; ++i ) 1902 for (i = 1; i < items; ++i )
1907 { 1903 {
1904 aio_req req;
1905
1908 if (GIMME_V != G_VOID) 1906 if (GIMME_V != G_VOID)
1909 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1907 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1910 1908
1911 req = SvAIO_REQ (ST (i)); 1909 req = SvAIO_REQ (ST (i));
1912 1910
1913 if (req) 1911 if (req)
1914 { 1912 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 } 1913 }
1927} 1914}
1928 1915
1929void 1916void
1930cancel_subs (aio_req_ornot req) 1917cancel_subs (aio_req_ornot req)
… …
1939 AV *av; 1926 AV *av;
1940 1927
1941 grp->errorno = errno; 1928 grp->errorno = errno;
1942 1929
1943 av = newAV (); 1930 av = newAV ();
1931 av_extend (av, items - 1);
1944 1932
1945 for (i = 1; i < items; ++i ) 1933 for (i = 1; i < items; ++i )
1946 av_push (av, newSVsv (ST (i))); 1934 av_push (av, newSVsv (ST (i)));
1947 1935
1948 SvREFCNT_dec (grp->sv1); 1936 SvREFCNT_dec (grp->sv1);
… …
1955 grp->errorno = errorno; 1943 grp->errorno = errorno;
1956 1944
1957void 1945void
1958limit (aio_req grp, int limit) 1946limit (aio_req grp, int limit)
1959 CODE: 1947 CODE:
1960 grp->int2 = limit; 1948 eio_grp_limit (grp, limit);
1961 aio_grp_feed (grp);
1962 1949
1963void 1950void
1964feed (aio_req grp, SV *callback=&PL_sv_undef) 1951feed (aio_req grp, SV *callback=&PL_sv_undef)
1965 CODE: 1952 CODE:
1966{ 1953{
1967 SvREFCNT_dec (grp->sv2); 1954 SvREFCNT_dec (grp->sv2);
1968 grp->sv2 = newSVsv (callback); 1955 grp->sv2 = newSVsv (callback);
1956 grp->feed = aio_grp_feed;
1969 1957
1970 if (grp->int2 <= 0) 1958 if (grp->int2 <= 0)
1971 grp->int2 = 2; 1959 grp->int2 = 2;
1972 1960
1973 aio_grp_feed (grp); 1961 eio_grp_limit (grp, grp->int2);
1974} 1962}
1975 1963

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