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

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