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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.91 by root, Wed Nov 8 01:57:43 2006 UTC vs.
Revision 1.210 by root, Fri Apr 6 11:39:25 2012 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
34# if __linux 24#if __linux__
35# include <sys/sendfile.h> 25# include <linux/fs.h>
36# elif __freebsd 26# ifdef FS_IOC_FIEMAP
37# include <sys/socket.h> 27# include <linux/fiemap.h>
38# include <sys/uio.h> 28# define HAVE_FIEMAP 1
39# elif __hpux
40# include <sys/socket.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h>
43# else
44# error sendfile support requested but not available
45# endif 29# endif
46#endif 30#endif
47 31
48/* number of seconds after which idle threads exit */ 32/* perl namespace pollution */
49#define IDLE_TIMEOUT 10 33#undef VERSION
50 34
51/* used for struct dirent, AIX doesn't provide it */ 35/* perl stupidly overrides readdir and maybe others */
52#ifndef NAME_MAX 36/* with thread-unsafe versions, imagine that :( */
53# 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
54#endif 88#endif
55 89
56#ifndef PTHREAD_STACK_MIN 90/*****************************************************************************/
57/* care for broken platforms, e.g. windows */ 91
58# define PTHREAD_STACK_MIN 16384 92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
59#endif 96#endif
60 97
61#if __ia64 98#define expect_false(expr) expect ((expr) != 0, 0)
62# define STACKSIZE 65536 99#define expect_true(expr) expect ((expr) != 0, 1)
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 100
64# define STACKSIZE PTHREAD_STACK_MIN 101/*****************************************************************************/
65#else 102
66# define STACKSIZE 16384 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 */
67#endif 130#endif
68 131
69/* wether word reads are potentially non-atomic. 132#if !HAVE_POSIX_MADVISE
70 * this is conservatice, likely most arches this runs 133# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
71 * on have atomic word read/writes. 134#endif
72 */ 135
73#ifndef WORDACCESS_UNSAFE 136#ifndef MAP_ANONYMOUS
74# if __i386 || __x86_64 137# ifdef MAP_ANON
75# define WORDACCESS_UNSAFE 0 138# define MAP_ANONYMOUS MAP_ANON
76# else 139# else
77# define WORDACCESS_UNSAFE 1 140# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
78# endif 141# endif
79#endif 142#endif
80 143
81/* buffer size for various temporary buffers */ 144/* defines all sorts of constants to 0 unless they are already defined */
82#define AIO_BUFSIZE 65536 145#include "def0.h"
83 146
84#define dBUF \ 147#ifndef makedev
85 char *aio_buf; \ 148# define makedev(maj,min) (((maj) << 8) | (min))
86 LOCK (wrklock); \ 149#endif
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 150#ifndef major
88 UNLOCK (wrklock); \ 151# define major(dev) ((dev) >> 8)
89 if (!aio_buf) \ 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)
90 return -1; 191 return;
91 192
92typedef SV SV8; /* byte-sv, used for argument-checking */ 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/*****************************************************************************/
93 221
94enum { 222enum {
95 REQ_QUIT, 223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
96 REQ_OPEN, REQ_CLOSE,
97 REQ_READ, REQ_WRITE, REQ_READAHEAD,
98 REQ_SENDFILE,
99 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
100 REQ_FSYNC, REQ_FDATASYNC,
101 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
102 REQ_MKNOD, REQ_READDIR,
103 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
104 REQ_GROUP, REQ_NOP,
105 REQ_BUSY,
106}; 224};
107 225
108#define AIO_REQ_KLASS "IO::AIO::REQ"
109#define AIO_GRP_KLASS "IO::AIO::GRP"
110
111typedef struct aio_cb
112{
113 struct aio_cb *volatile next;
114
115 SV *callback, *fh;
116 SV *sv1, *sv2;
117 void *ptr1, *ptr2;
118 off_t offs;
119 size_t size;
120 ssize_t result;
121
122 STRLEN stroffset;
123 int type;
124 int int1, int2;
125 int errorno;
126 mode_t mode; /* open */
127
128 unsigned char flags;
129 unsigned char pri;
130
131 SV *self; /* the perl counterpart of this request, if any */
132 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
133} aio_cb;
134
135enum {
136 FLAG_CANCELLED = 0x01, /* request was cancelled */
137 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
138 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
139};
140
141typedef aio_cb *aio_req; 226typedef eio_req *aio_req;
142typedef aio_cb *aio_req_ornot; 227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
143 229
144enum { 230static SV *on_next_submit;
145 PRI_MIN = -4, 231static int next_pri = EIO_PRI_DEFAULT;
146 PRI_MAX = 4, 232static int max_outstanding;
147 233
148 DEFAULT_PRI = 0, 234static s_epipe respipe;
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152 235
153#define AIO_TICKS ((1000000 + 1023) >> 10)
154
155static unsigned int max_poll_time = 0;
156static unsigned int max_poll_reqs = 0;
157
158/* calculcate time difference in ~1/AIO_TICKS of a second */
159static int tvdiff (struct timeval *tv1, struct timeval *tv2)
160{
161 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
162 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
170# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
171#else
172# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
173#endif
174
175#define LOCK(mutex) pthread_mutex_lock (&(mutex))
176#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
177
178/* worker threads management */
179static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
180
181typedef struct worker {
182 /* locked by wrklock */
183 struct worker *prev, *next;
184
185 pthread_t tid;
186
187 /* locked by reslock, reqlock or wrklock */
188 aio_req req; /* currently processed request */
189 void *dbuf;
190 DIR *dirp;
191} worker;
192
193static worker wrk_first = { &wrk_first, &wrk_first, 0 };
194
195static void worker_clear (worker *wrk)
196{
197 if (wrk->dirp)
198 {
199 closedir (wrk->dirp);
200 wrk->dirp = 0;
201 }
202
203 if (wrk->dbuf)
204 {
205 free (wrk->dbuf);
206 wrk->dbuf = 0;
207 }
208}
209
210static void worker_free (worker *wrk)
211{
212 wrk->next->prev = wrk->prev;
213 wrk->prev->next = wrk->next;
214
215 free (wrk);
216}
217
218static volatile unsigned int nreqs, nready, npending;
219static volatile unsigned int max_idle = 4;
220static volatile unsigned int max_outstanding = 0xffffffff;
221static int respipe [2];
222
223static pthread_mutex_t reslock = AIO_MUTEX_INIT;
224static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
225static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
226
227#if WORDACCESS_UNSAFE
228
229static unsigned int get_nready ()
230{
231 unsigned int retval;
232
233 LOCK (reqlock);
234 retval = nready;
235 UNLOCK (reqlock);
236
237 return retval;
238}
239
240static unsigned int get_npending ()
241{
242 unsigned int retval;
243
244 LOCK (reslock);
245 retval = npending;
246 UNLOCK (reslock);
247
248 return retval;
249}
250
251static unsigned int get_nthreads ()
252{
253 unsigned int retval;
254
255 LOCK (wrklock);
256 retval = started;
257 UNLOCK (wrklock);
258
259 return retval;
260}
261
262#else
263
264# define get_nready() nready
265# define get_npending() npending
266# define get_nthreads() started
267
268#endif
269
270/*
271 * a somewhat faster data structure might be nice, but
272 * with 8 priorities this actually needs <20 insns
273 * per shift, the most expensive operation.
274 */
275typedef struct {
276 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
277 int size;
278} reqq;
279
280static reqq req_queue;
281static reqq res_queue;
282
283int reqq_push (reqq *q, aio_req req)
284{
285 int pri = req->pri;
286 req->next = 0;
287
288 if (q->qe[pri])
289 {
290 q->qe[pri]->next = req;
291 q->qe[pri] = req;
292 }
293 else
294 q->qe[pri] = q->qs[pri] = req;
295
296 return q->size++;
297}
298
299aio_req reqq_shift (reqq *q)
300{
301 int pri;
302
303 if (!q->size)
304 return 0;
305
306 --q->size;
307
308 for (pri = NUM_PRI; pri--; )
309 {
310 aio_req req = q->qs[pri];
311
312 if (req)
313 {
314 if (!(q->qs[pri] = req->next))
315 q->qe[pri] = 0;
316
317 return req;
318 }
319 }
320
321 abort ();
322}
323
324static int poll_cb ();
325static void req_invoke (aio_req req);
326static void req_free (aio_req req); 236static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 237static void req_cancel (aio_req req);
328 238
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
329/* must be called at most once */ 253/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 254static SV *
255req_sv (aio_req req, HV *stash)
331{ 256{
332 if (!req->self) 257 if (!req->self)
333 { 258 {
334 req->self = (SV *)newHV (); 259 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 261 }
337 262
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
339} 264}
340 265
341static 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)
342{ 274{
343 MAGIC *mg; 275 MAGIC *mg;
344 276
345 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")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 282 croak ("object of class IO::AIO::REQ expected");
347 283
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 285
350 return mg ? (aio_req)mg->mg_ptr : 0; 286 return mg ? (aio_req)mg->mg_ptr : 0;
351} 287}
352 288
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
353static void aio_grp_feed (aio_req grp) 301aio_grp_feed (aio_req grp)
354{ 302{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 303 if (grp->sv2 && SvOK (grp->sv2))
356 { 304 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 305 dSP;
362 306
363 ENTER; 307 ENTER;
364 SAVETMPS; 308 SAVETMPS;
365 PUSHMARK (SP); 309 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 311 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 313 SPAGAIN;
370 FREETMPS; 314 FREETMPS;
371 LEAVE; 315 LEAVE;
372 }
373
374 /* stop if no progress has been made */
375 if (old_len == grp->size)
376 {
377 SvREFCNT_dec (grp->sv2);
378 grp->sv2 = 0;
379 break;
380 }
381 } 316 }
382} 317}
383 318
384static void aio_grp_dec (aio_req grp) 319static void
320req_submit (eio_req *req)
385{ 321{
386 --grp->size; 322 eio_submit (req);
387 323
388 /* call feeder, if applicable */ 324 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 325 {
394 req_invoke (grp); 326 dSP;
395 req_free (grp); 327 SV *cb = sv_2mortal (on_next_submit);
328
329 on_next_submit = 0;
330
331 PUSHMARK (SP);
332 PUTBACK;
333 call_sv (cb, G_DISCARD | G_EVAL);
396 } 334 }
397} 335}
398 336
337static int
399static void req_invoke (aio_req req) 338req_invoke (eio_req *req)
400{ 339{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 341 SvREADONLY_off (req->sv2);
405 342
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
407 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
408 ENTER; 349 ENTER;
409 SAVETMPS; 350 SAVETMPS;
410 PUSHMARK (SP); 351 PUSHMARK (SP);
411 EXTEND (SP, 1); 352 EXTEND (SP, 1);
412 353
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
413 switch (req->type) 367 switch (req->type)
414 { 368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
415 case REQ_READDIR: 373 case EIO_READDIR:
416 { 374 {
417 SV *rv = &PL_sv_undef; 375 SV *rv = &PL_sv_undef;
418 376
419 if (req->result >= 0) 377 if (req->result >= 0)
420 { 378 {
421 int i; 379 int i;
422 char *buf = req->ptr2; 380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 382 AV *av = newAV ();
424 383
425 av_extend (av, req->result - 1); 384 av_extend (av, req->result - 1);
426 385
427 for (i = 0; i < req->result; ++i) 386 for (i = 0; i < req->result; ++i)
428 { 387 {
429 SV *sv = newSVpv (buf, 0); 388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 391
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
431 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);
432 buf += SvCUR (sv) + 1; 420 names += SvCUR (name) + 1;
421 }
433 } 422 }
434 423
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 424 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 425 }
437 426
438 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))));
439 } 431 }
440 break; 432 break;
441 433
442 case REQ_OPEN: 434 case EIO_OPEN:
443 { 435 {
444 /* convert fd to fh */ 436 /* convert fd to fh */
445 SV *fh; 437 SV *fh = &PL_sv_undef;
446 438
447 PUSHs (sv_2mortal (newSViv (req->result))); 439 if (req->result >= 0)
448 PUTBACK; 440 {
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 441 GV *gv = (GV *)sv_newmortal ();
450 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);
451 448
452 fh = SvREFCNT_inc (POPs); 449 symlen = snprintf (
450 sym,
451 sizeof (sym),
452 "%s&=%d",
453 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454 (int)req->result
455 );
453 456
457 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458 fh = (SV *)gv;
459 }
460
454 PUSHMARK (SP); 461 PUSHs (fh);
455 XPUSHs (sv_2mortal (fh));
456 } 462 }
457 break; 463 break;
458 464
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
459 case REQ_GROUP: 497 case EIO_GROUP:
460 req->int1 = 2; /* mark group as finished */ 498 req->int1 = 2; /* mark group as finished */
461 499
462 if (req->sv1) 500 if (req->sv1)
463 { 501 {
464 int i; 502 int i;
… …
468 for (i = 0; i <= AvFILL (av); ++i) 506 for (i = 0; i <= AvFILL (av); ++i)
469 PUSHs (*av_fetch (av, i, 0)); 507 PUSHs (*av_fetch (av, i, 0));
470 } 508 }
471 break; 509 break;
472 510
473 case REQ_NOP: 511 case EIO_NOP:
474 case REQ_BUSY: 512 case EIO_BUSY:
475 break; 513 break;
476 514
477 case REQ_READLINK: 515 case EIO_READLINK:
516 case EIO_REALPATH:
478 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)
479 { 549 {
480 SvCUR_set (req->sv1, req->result);
481 *SvEND (req->sv1) = 0;
482 PUSHs (req->sv1); 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 }
483 } 580 }
581 else
582 PUSHs (sv_result);
484 break; 583 break;
485 584
486 case REQ_STAT: 585 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
487 case REQ_LSTAT: 586 if (req->result > 0)
488 case REQ_FSTAT: 587 SvIV_set (sv_result, 0);
489 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 588 /* FALLTHROUGH */
490 PL_laststatval = req->result;
491 PL_statcache = *(Stat_t *)(req->ptr2);
492 PUSHs (sv_2mortal (newSViv (req->result)));
493 break;
494
495 case REQ_READ:
496 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
497 *SvEND (req->sv1) = 0;
498 PUSHs (sv_2mortal (newSViv (req->result)));
499 break;
500 589
501 default: 590 default:
502 PUSHs (sv_2mortal (newSViv (req->result))); 591 PUSHs (sv_result);
503 break; 592 break;
504 } 593 }
505 594
506 errno = req->errorno; 595 errno = req->errorno;
507 596
508 PUTBACK; 597 PUTBACK;
509 call_sv (req->callback, G_VOID | G_EVAL); 598 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
510 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;
511 605
512 FREETMPS; 606 FREETMPS;
513 LEAVE; 607 LEAVE;
608
609 PUTBACK;
514 } 610 }
515 611
516 if (req->grp) 612 return !!SvTRUE (ERRSV);
517 {
518 aio_req grp = req->grp;
519
520 /* unlink request */
521 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
522 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
523
524 if (grp->grp_first == req)
525 grp->grp_first = req->grp_next;
526
527 aio_grp_dec (grp);
528 }
529
530 if (SvTRUE (ERRSV))
531 {
532 req_free (req);
533 croak (0);
534 }
535} 613}
536 614
537static void req_free (aio_req req) 615static void
616req_destroy (aio_req req)
538{ 617{
539 if (req->self) 618 if (req->self)
540 { 619 {
541 sv_unmagic (req->self, PERL_MAGIC_ext); 620 sv_unmagic (req->self, PERL_MAGIC_ext);
542 SvREFCNT_dec (req->self); 621 SvREFCNT_dec (req->self);
543 } 622 }
544 623
545 SvREFCNT_dec (req->fh);
546 SvREFCNT_dec (req->sv1); 624 SvREFCNT_dec (req->sv1);
547 SvREFCNT_dec (req->sv2); 625 SvREFCNT_dec (req->sv2);
626 SvREFCNT_dec (req->sv3);
627 SvREFCNT_dec (req->sv4);
548 SvREFCNT_dec (req->callback); 628 SvREFCNT_dec (req->callback);
549 629
550 if (req->flags & FLAG_PTR2_FREE)
551 free (req->ptr2);
552
553 Safefree (req); 630 free (req);
554} 631}
555 632
633static void
556static void req_cancel_subs (aio_req grp) 634req_cancel_subs (aio_req grp)
557{ 635{
558 aio_req sub;
559
560 if (grp->type != REQ_GROUP) 636 if (grp->type != EIO_GROUP)
561 return; 637 return;
562 638
563 SvREFCNT_dec (grp->sv2); 639 SvREFCNT_dec (grp->sv2);
564 grp->sv2 = 0; 640 grp->sv2 = 0;
565 641
566 for (sub = grp->grp_first; sub; sub = sub->grp_next) 642 eio_grp_cancel (grp);
567 req_cancel (sub);
568} 643}
569 644
570static void req_cancel (aio_req req) 645static void ecb_cold
646create_respipe (void)
571{ 647{
572 req->flags |= FLAG_CANCELLED; 648 if (s_epipe_renew (&respipe))
573 649 croak ("IO::AIO: unable to initialize result pipe");
574 req_cancel_subs (req);
575} 650}
576 651
577static void *aio_proc(void *arg); 652static void
578 653poll_wait (void)
579static void start_thread (void)
580{ 654{
581 sigset_t fullsigset, oldsigset;
582 pthread_attr_t attr;
583
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 pthread_attr_init (&attr);
590 pthread_attr_setstacksize (&attr, STACKSIZE);
591 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592#ifdef PTHREAD_SCOPE_PROCESS
593 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594#endif
595
596 sigfillset (&fullsigset);
597
598 LOCK (wrklock);
599 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600
601 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
602 {
603 wrk->prev = &wrk_first;
604 wrk->next = wrk_first.next;
605 wrk_first.next->prev = wrk;
606 wrk_first.next = wrk;
607 ++started;
608 }
609 else
610 free (wrk);
611
612 sigprocmask (SIG_SETMASK, &oldsigset, 0);
613 UNLOCK (wrklock);
614}
615
616static void maybe_start_thread ()
617{
618 if (get_nthreads () >= wanted)
619 return;
620
621 /* todo: maybe use idle here, but might be less exact */
622 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
623 return;
624
625 start_thread ();
626}
627
628static void req_send (aio_req req)
629{
630 ++nreqs;
631
632 LOCK (reqlock);
633 ++nready;
634 reqq_push (&req_queue, req);
635 pthread_cond_signal (&reqwait);
636 UNLOCK (reqlock);
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 pthread_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 for (;;) 675 for (;;)
718 { 676 {
719 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)
720 { 790 {
721 maybe_start_thread (); 791 path = AvARRAY (rv)[1];
792 wdob = AvARRAY (rv)[0];
722 793
723 LOCK (reslock); 794 if (SvOK (wdob))
724 req = reqq_shift (&res_queue);
725
726 if (req)
727 { 795 {
728 --npending; 796 *wd = SvAIO_WD (wdob);
729 797 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
730 if (!res_queue.size)
731 {
732 /* read any signals sent by the worker threads */
733 char buf [32];
734 while (read (respipe [0], buf, 32) == 32)
735 ;
736 }
737 }
738
739 UNLOCK (reslock);
740
741 if (!req)
742 break;
743
744 --nreqs;
745
746 if (req->type == REQ_GROUP && req->size)
747 {
748 req->int1 = 1; /* mark request as delayed */
749 continue;
750 } 798 }
751 else 799 else
752 { 800 *wd = EIO_INVALID_WD;
753 req_invoke (req);
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 } 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 }
771 812
772 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)));
773 break; 836 break;
774 837
775 poll_wait (); 838 default:
776 839 req->type = type_path;
777 ++maxreqs; 840 req_set_path1 (req, fh_or_path);
841 break;
778 } 842 }
779
780 return count;
781} 843}
782 844
783static void create_pipe () 845XS(boot_IO__AIO) ecb_cold;
784{
785 if (pipe (respipe))
786 croak ("unable to initialize result pipe");
787 846
788 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790
791 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792 croak ("cannot set result pipe to nonblocking mode");
793}
794
795/*****************************************************************************/
796/* work around various missing functions */
797
798#if !HAVE_PREADWRITE
799# define pread aio_pread
800# define pwrite aio_pwrite
801
802/*
803 * make our pread/pwrite safe against themselves, but not against
804 * normal read/write by using a mutex. slows down execution a lot,
805 * but that's your problem, not mine.
806 */
807static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
808
809static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810{
811 ssize_t res;
812 off_t ooffset;
813
814 LOCK (preadwritelock);
815 ooffset = lseek (fd, 0, SEEK_CUR);
816 lseek (fd, offset, SEEK_SET);
817 res = read (fd, buf, count);
818 lseek (fd, ooffset, SEEK_SET);
819 UNLOCK (preadwritelock);
820
821 return res;
822}
823
824static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
825{
826 ssize_t res;
827 off_t ooffset;
828
829 LOCK (preadwritelock);
830 ooffset = lseek (fd, 0, SEEK_CUR);
831 lseek (fd, offset, SEEK_SET);
832 res = write (fd, buf, count);
833 lseek (fd, offset, SEEK_SET);
834 UNLOCK (preadwritelock);
835
836 return res;
837}
838#endif
839
840#if !HAVE_FDATASYNC
841# define fdatasync fsync
842#endif
843
844#if !HAVE_READAHEAD
845# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846
847static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
848{
849 dBUF;
850
851 while (count > 0)
852 {
853 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
854
855 pread (fd, aio_buf, len, offset);
856 offset += len;
857 count -= len;
858 }
859
860 errno = 0;
861}
862
863#endif
864
865#if !HAVE_READDIR_R
866# define readdir_r aio_readdir_r
867
868static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
869
870static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
871{
872 struct dirent *e;
873 int errorno;
874
875 LOCK (readdirlock);
876
877 e = readdir (dirp);
878 errorno = errno;
879
880 if (e)
881 {
882 *res = ent;
883 strcpy (ent->d_name, e->d_name);
884 }
885 else
886 *res = 0;
887
888 UNLOCK (readdirlock);
889
890 errno = errorno;
891 return e ? 0 : -1;
892}
893#endif
894
895/* sendfile always needs emulation */
896static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
897{
898 ssize_t res;
899
900 if (!count)
901 return 0;
902
903#if HAVE_SENDFILE
904# if __linux
905 res = sendfile (ofd, ifd, &offset, count);
906
907# elif __freebsd
908 /*
909 * Of course, the freebsd sendfile is a dire hack with no thoughts
910 * wasted on making it similar to other I/O functions.
911 */
912 {
913 off_t sbytes;
914 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
915
916 if (res < 0 && sbytes)
917 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
918 res = sbytes;
919 }
920
921# elif __hpux
922 res = sendfile (ofd, ifd, offset, count, 0, 0);
923
924# elif __solaris
925 {
926 struct sendfilevec vec;
927 size_t sbytes;
928
929 vec.sfv_fd = ifd;
930 vec.sfv_flag = 0;
931 vec.sfv_off = offset;
932 vec.sfv_len = count;
933
934 res = sendfilev (ofd, &vec, 1, &sbytes);
935
936 if (res < 0 && sbytes)
937 res = sbytes;
938 }
939
940# endif
941#else
942 res = -1;
943 errno = ENOSYS;
944#endif
945
946 if (res < 0
947 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
948#if __solaris
949 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
950#endif
951 )
952 )
953 {
954 /* emulate sendfile. this is a major pain in the ass */
955 dBUF;
956
957 res = 0;
958
959 while (count)
960 {
961 ssize_t cnt;
962
963 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
964
965 if (cnt <= 0)
966 {
967 if (cnt && !res) res = -1;
968 break;
969 }
970
971 cnt = write (ofd, aio_buf, cnt);
972
973 if (cnt <= 0)
974 {
975 if (cnt && !res) res = -1;
976 break;
977 }
978
979 offset += cnt;
980 res += cnt;
981 count -= cnt;
982 }
983 }
984
985 return res;
986}
987
988/* read a full directory */
989static void scandir_ (aio_req req, worker *self)
990{
991 DIR *dirp;
992 union
993 {
994 struct dirent d;
995 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
996 } *u;
997 struct dirent *entp;
998 char *name, *names;
999 int memlen = 4096;
1000 int memofs = 0;
1001 int res = 0;
1002 int errorno;
1003
1004 LOCK (wrklock);
1005 self->dirp = dirp = opendir (req->ptr1);
1006 self->dbuf = u = malloc (sizeof (*u));
1007 req->flags |= FLAG_PTR2_FREE;
1008 req->ptr2 = names = malloc (memlen);
1009 UNLOCK (wrklock);
1010
1011 if (dirp && u && names)
1012 for (;;)
1013 {
1014 errno = 0;
1015 readdir_r (dirp, &u->d, &entp);
1016
1017 if (!entp)
1018 break;
1019
1020 name = entp->d_name;
1021
1022 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1023 {
1024 int len = strlen (name) + 1;
1025
1026 res++;
1027
1028 while (memofs + len > memlen)
1029 {
1030 memlen *= 2;
1031 LOCK (wrklock);
1032 req->ptr2 = names = realloc (names, memlen);
1033 UNLOCK (wrklock);
1034
1035 if (!names)
1036 break;
1037 }
1038
1039 memcpy (names + memofs, name, len);
1040 memofs += len;
1041 }
1042 }
1043
1044 if (errno)
1045 res = -1;
1046
1047 req->result = res;
1048}
1049
1050/*****************************************************************************/
1051
1052static void *aio_proc (void *thr_arg)
1053{
1054 aio_req req;
1055 struct timespec ts;
1056 worker *self = (worker *)thr_arg;
1057
1058 /* try to distribute timeouts somewhat evenly */
1059 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1060 * (1000000000UL / 1024UL);
1061
1062 for (;;)
1063 {
1064 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065
1066 LOCK (reqlock);
1067
1068 for (;;)
1069 {
1070 self->req = req = reqq_shift (&req_queue);
1071
1072 if (req)
1073 break;
1074
1075 ++idle;
1076
1077 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1078 == ETIMEDOUT)
1079 {
1080 if (idle > max_idle)
1081 {
1082 --idle;
1083 UNLOCK (reqlock);
1084 LOCK (wrklock);
1085 --started;
1086 UNLOCK (wrklock);
1087 goto quit;
1088 }
1089
1090 /* we are allowed to idle, so do so without any timeout */
1091 pthread_cond_wait (&reqwait, &reqlock);
1092 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093 }
1094
1095 --idle;
1096 }
1097
1098 --nready;
1099
1100 UNLOCK (reqlock);
1101
1102 errno = 0; /* strictly unnecessary */
1103
1104 if (!(req->flags & FLAG_CANCELLED))
1105 switch (req->type)
1106 {
1107 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1108 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1109
1110 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112
1113 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1116
1117 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118 case REQ_CLOSE: req->result = close (req->int1); break;
1119 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1121 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1126
1127 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128 case REQ_FSYNC: req->result = fsync (req->int1); break;
1129 case REQ_READDIR: scandir_ (req, self); break;
1130
1131 case REQ_BUSY:
1132 {
1133 struct timeval tv;
1134
1135 tv.tv_sec = req->int1;
1136 tv.tv_usec = req->int2;
1137
1138 req->result = select (0, 0, 0, 0, &tv);
1139 }
1140
1141 case REQ_GROUP:
1142 case REQ_NOP:
1143 break;
1144
1145 case REQ_QUIT:
1146 goto quit;
1147
1148 default:
1149 req->result = ENOSYS;
1150 break;
1151 }
1152
1153 req->errorno = errno;
1154
1155 LOCK (reslock);
1156
1157 ++npending;
1158
1159 if (!reqq_push (&res_queue, req))
1160 /* write a dummy byte to the pipe so fh becomes ready */
1161 write (respipe [1], &respipe, 1);
1162
1163 self->req = 0;
1164 worker_clear (self);
1165
1166 UNLOCK (reslock);
1167 }
1168
1169quit:
1170 LOCK (wrklock);
1171 worker_free (self);
1172 UNLOCK (wrklock);
1173
1174 return 0;
1175}
1176
1177/*****************************************************************************/
1178
1179static void atfork_prepare (void)
1180{
1181 LOCK (wrklock);
1182 LOCK (reqlock);
1183 LOCK (reslock);
1184#if !HAVE_PREADWRITE
1185 LOCK (preadwritelock);
1186#endif
1187#if !HAVE_READDIR_R
1188 LOCK (readdirlock);
1189#endif
1190}
1191
1192static void atfork_parent (void)
1193{
1194#if !HAVE_READDIR_R
1195 UNLOCK (readdirlock);
1196#endif
1197#if !HAVE_PREADWRITE
1198 UNLOCK (preadwritelock);
1199#endif
1200 UNLOCK (reslock);
1201 UNLOCK (reqlock);
1202 UNLOCK (wrklock);
1203}
1204
1205static void atfork_child (void)
1206{
1207 aio_req prv;
1208
1209 while (prv = reqq_shift (&req_queue))
1210 req_free (prv);
1211
1212 while (prv = reqq_shift (&res_queue))
1213 req_free (prv);
1214
1215 while (wrk_first.next != &wrk_first)
1216 {
1217 worker *wrk = wrk_first.next;
1218
1219 if (wrk->req)
1220 req_free (wrk->req);
1221
1222 worker_clear (wrk);
1223 worker_free (wrk);
1224 }
1225
1226 started = 0;
1227 idle = 0;
1228 nreqs = 0;
1229 nready = 0;
1230 npending = 0;
1231
1232 close (respipe [0]);
1233 close (respipe [1]);
1234 create_pipe ();
1235
1236 atfork_parent ();
1237}
1238
1239#define dREQ \
1240 aio_req req; \
1241 int req_pri = next_pri; \
1242 next_pri = DEFAULT_PRI + PRI_BIAS; \
1243 \
1244 if (SvOK (callback) && !SvROK (callback)) \
1245 croak ("callback must be undef or of reference type"); \
1246 \
1247 Newz (0, req, 1, aio_cb); \
1248 if (!req) \
1249 croak ("out of memory during aio_req allocation"); \
1250 \
1251 req->callback = newSVsv (callback); \
1252 req->pri = req_pri
1253
1254#define REQ_SEND \
1255 req_send (req); \
1256 \
1257 if (GIMME_V != G_VOID) \
1258 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1259
1260MODULE = IO::AIO PACKAGE = IO::AIO 847MODULE = IO::AIO PACKAGE = IO::AIO
1261 848
1262PROTOTYPES: ENABLE 849PROTOTYPES: ENABLE
1263 850
1264BOOT: 851BOOT:
1265{ 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
1266 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);
1267 998
1268 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 999 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1269 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1000 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1270 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1273 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1274 1001
1275 create_pipe (); 1002 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1276 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1277}
1278 1003
1004 reinit ();
1005}
1006
1279void 1007void
1008reinit ()
1009 PROTOTYPE:
1010
1011void
1280max_poll_reqs (int nreqs) 1012max_poll_reqs (unsigned int nreqs)
1281 PROTOTYPE: $ 1013 PROTOTYPE: $
1282 CODE: 1014 CODE:
1283 max_poll_reqs = nreqs; 1015 eio_set_max_poll_reqs (nreqs);
1284 1016
1285void 1017void
1286max_poll_time (double nseconds) 1018max_poll_time (double nseconds)
1287 PROTOTYPE: $ 1019 PROTOTYPE: $
1288 CODE: 1020 CODE:
1289 max_poll_time = nseconds * AIO_TICKS; 1021 eio_set_max_poll_time (nseconds);
1290 1022
1291void 1023void
1292min_parallel (int nthreads) 1024min_parallel (unsigned int nthreads)
1293 PROTOTYPE: $
1294
1295void
1296max_parallel (int nthreads)
1297 PROTOTYPE: $
1298
1299void
1300max_idle (int nthreads)
1301 PROTOTYPE: $ 1025 PROTOTYPE: $
1302 CODE: 1026 CODE:
1303 set_max_idle (nthreads); 1027 eio_set_min_parallel (nthreads);
1304 1028
1305int 1029void
1306max_outstanding (int maxreqs) 1030max_parallel (unsigned int nthreads)
1307 PROTOTYPE: $ 1031 PROTOTYPE: $
1308 CODE: 1032 CODE:
1309 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:
1310 max_outstanding = maxreqs; 1051 max_outstanding = maxreqs;
1311 OUTPUT:
1312 RETVAL
1313 1052
1314void 1053void
1315aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1054aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1316 SV8 * pathname
1317 int flags
1318 int mode
1319 SV * callback
1320 PROTOTYPE: $$$;$
1321 PPCODE: 1055 PPCODE:
1322{ 1056{
1323 dREQ; 1057 dREQ;
1324 1058
1059 req->type = EIO_WD_OPEN;
1060 req_set_path1 (req, pathname);
1061
1062 REQ_SEND;
1063}
1064
1065void
1066aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1067 PPCODE:
1068{
1069 dREQ;
1070
1325 req->type = REQ_OPEN; 1071 req->type = EIO_OPEN;
1326 req->sv1 = newSVsv (pathname); 1072 req_set_path1 (req, pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags; 1073 req->int1 = flags;
1329 req->mode = mode; 1074 req->int2 = mode;
1330 1075
1331 REQ_SEND; 1076 REQ_SEND;
1332} 1077}
1333 1078
1334void 1079void
1335aio_close (fh,callback=&PL_sv_undef) 1080aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1336 SV * fh
1337 SV * callback
1338 PROTOTYPE: $;$
1339 ALIAS: 1081 ALIAS:
1340 aio_close = REQ_CLOSE
1341 aio_fsync = REQ_FSYNC 1082 aio_fsync = EIO_FSYNC
1342 aio_fdatasync = REQ_FDATASYNC 1083 aio_fdatasync = EIO_FDATASYNC
1084 aio_syncfs = EIO_SYNCFS
1343 PPCODE: 1085 PPCODE:
1344{ 1086{
1087 int fd = s_fileno_croak (fh, 0);
1345 dREQ; 1088 dREQ;
1346 1089
1347 req->type = ix; 1090 req->type = ix;
1348 req->fh = newSVsv (fh); 1091 req->sv1 = newSVsv (fh);
1349 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1092 req->int1 = fd;
1350 1093
1351 REQ_SEND (req); 1094 REQ_SEND;
1352} 1095}
1353 1096
1354void 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
1355aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1183aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1356 SV * fh
1357 UV offset
1358 UV length
1359 SV8 * data
1360 UV dataoffset
1361 SV * callback
1362 ALIAS: 1184 ALIAS:
1363 aio_read = REQ_READ 1185 aio_read = EIO_READ
1364 aio_write = REQ_WRITE 1186 aio_write = EIO_WRITE
1365 PROTOTYPE: $$$$$;$
1366 PPCODE: 1187 PPCODE:
1367{ 1188{
1368 STRLEN svlen; 1189 STRLEN svlen;
1190 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1369 char *svptr = SvPVbyte (data, svlen); 1191 char *svptr = SvPVbyte (data, svlen);
1370 1192 UV len = SvUV (length);
1371 SvUPGRADE (data, SVt_PV);
1372 SvPOK_on (data);
1373 1193
1374 if (dataoffset < 0) 1194 if (dataoffset < 0)
1375 dataoffset += svlen; 1195 dataoffset += svlen;
1376 1196
1377 if (dataoffset < 0 || dataoffset > svlen) 1197 if (dataoffset < 0 || dataoffset > svlen)
1378 croak ("data offset outside of string"); 1198 croak ("dataoffset outside of data scalar");
1379 1199
1380 if (ix == REQ_WRITE) 1200 if (ix == EIO_WRITE)
1381 { 1201 {
1382 /* write: check length and adjust. */ 1202 /* write: check length and adjust. */
1383 if (length < 0 || length + dataoffset > svlen) 1203 if (!SvOK (length) || len + dataoffset > svlen)
1384 length = svlen - dataoffset; 1204 len = svlen - dataoffset;
1385 } 1205 }
1386 else 1206 else
1387 { 1207 {
1388 /* read: grow scalar as necessary */ 1208 /* read: check type and grow scalar as necessary */
1209 SvUPGRADE (data, SVt_PV);
1389 svptr = SvGROW (data, length + dataoffset); 1210 svptr = SvGROW (data, len + dataoffset + 1);
1390 } 1211 }
1391
1392 if (length < 0)
1393 croak ("length must not be negative");
1394 1212
1395 { 1213 {
1396 dREQ; 1214 dREQ;
1397 1215
1398 req->type = ix; 1216 req->type = ix;
1399 req->fh = newSVsv (fh); 1217 req->sv1 = newSVsv (fh);
1400 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1218 req->int1 = fd;
1401 : IoOFP (sv_2io (fh))); 1219 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1402 req->offs = offset;
1403 req->size = length; 1220 req->size = len;
1404 req->sv1 = SvREFCNT_inc (data); 1221 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr1 = (char *)svptr + dataoffset; 1222 req->ptr2 = (char *)svptr + dataoffset;
1406 req->stroffset = dataoffset; 1223 req->stroffset = dataoffset;
1407 1224
1408 if (!SvREADONLY (data)) 1225 if (!SvREADONLY (data))
1409 { 1226 {
1410 SvREADONLY_on (data); 1227 SvREADONLY_on (data);
1411 req->flags |= FLAG_SV1_RO_OFF; 1228 req->flags |= FLAG_SV2_RO_OFF;
1412 } 1229 }
1413 1230
1414 REQ_SEND; 1231 REQ_SEND;
1415 } 1232 }
1416} 1233}
1417 1234
1418void 1235void
1419aio_readlink (path,callback=&PL_sv_undef) 1236aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1420 SV8 * path 1237 ALIAS:
1421 SV * callback 1238 aio_readlink = EIO_READLINK
1422 PROTOTYPE: $$;$ 1239 aio_realpath = EIO_REALPATH
1423 PPCODE: 1240 PPCODE:
1424{ 1241{
1425 SV *data;
1426 dREQ; 1242 dREQ;
1427 1243
1428 data = newSV (NAME_MAX);
1429 SvPOK_on (data);
1430
1431 req->type = REQ_READLINK; 1244 req->type = ix;
1432 req->fh = newSVsv (path); 1245 req_set_path1 (req, pathname);
1433 req->ptr2 = SvPVbyte_nolen (req->fh);
1434 req->sv1 = data;
1435 req->ptr1 = SvPVbyte_nolen (data);
1436 1246
1437 REQ_SEND; 1247 REQ_SEND;
1438} 1248}
1439 1249
1440void 1250void
1441aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1251aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1442 SV * out_fh
1443 SV * in_fh
1444 UV in_offset
1445 UV length
1446 SV * callback
1447 PROTOTYPE: $$$$;$
1448 PPCODE: 1252 PPCODE:
1449{ 1253{
1254 int ifd = s_fileno_croak (in_fh , 0);
1255 int ofd = s_fileno_croak (out_fh, 1);
1450 dREQ; 1256 dREQ;
1451 1257
1452 req->type = REQ_SENDFILE; 1258 req->type = EIO_SENDFILE;
1453 req->fh = newSVsv (out_fh); 1259 req->sv1 = newSVsv (out_fh);
1454 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1260 req->int1 = ofd;
1455 req->sv2 = newSVsv (in_fh); 1261 req->sv2 = newSVsv (in_fh);
1456 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1262 req->int2 = ifd;
1457 req->offs = in_offset; 1263 req->offs = in_offset;
1458 req->size = length; 1264 req->size = length;
1459 1265
1460 REQ_SEND; 1266 REQ_SEND;
1461} 1267}
1462 1268
1463void 1269void
1464aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1270aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1465 SV * fh
1466 UV offset
1467 IV length
1468 SV * callback
1469 PROTOTYPE: $$$;$
1470 PPCODE: 1271 PPCODE:
1471{ 1272{
1273 int fd = s_fileno_croak (fh, 0);
1472 dREQ; 1274 dREQ;
1473 1275
1474 req->type = REQ_READAHEAD; 1276 req->type = EIO_READAHEAD;
1475 req->fh = newSVsv (fh); 1277 req->sv1 = newSVsv (fh);
1476 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1278 req->int1 = fd;
1477 req->offs = offset; 1279 req->offs = offset;
1478 req->size = length; 1280 req->size = length;
1479 1281
1480 REQ_SEND; 1282 REQ_SEND;
1481} 1283}
1482 1284
1483void 1285void
1484aio_stat (fh_or_path,callback=&PL_sv_undef) 1286aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1485 SV8 * fh_or_path
1486 SV * callback
1487 ALIAS: 1287 ALIAS:
1488 aio_stat = REQ_STAT 1288 aio_stat = EIO_STAT
1489 aio_lstat = REQ_LSTAT 1289 aio_lstat = EIO_LSTAT
1290 aio_statvfs = EIO_STATVFS
1490 PPCODE: 1291 PPCODE:
1491{ 1292{
1492 dREQ; 1293 dREQ;
1493 1294
1494 req->ptr2 = malloc (sizeof (Stat_t)); 1295 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1495 if (!req->ptr2)
1496 {
1497 req_free (req);
1498 croak ("out of memory during aio_stat statdata allocation");
1499 }
1500
1501 req->flags |= FLAG_PTR2_FREE;
1502
1503 if (SvPOK (fh_or_path))
1504 {
1505 req->type = ix;
1506 req->sv1 = newSVsv (fh_or_path);
1507 req->ptr1 = SvPVbyte_nolen (req->sv1);
1508 }
1509 else
1510 {
1511 req->type = REQ_FSTAT;
1512 req->fh = newSVsv (fh_or_path);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514 }
1515 1296
1516 REQ_SEND; 1297 REQ_SEND;
1517} 1298}
1518 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
1315
1519void 1316void
1317aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1318 PPCODE:
1319{
1320 dREQ;
1321
1322 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1323 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1324 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1325
1326 REQ_SEND;
1327}
1328
1329void
1330aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1331 PPCODE:
1332{
1333 dREQ;
1334
1335 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1336 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1337
1338 REQ_SEND;
1339}
1340
1341void
1342aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1343 PPCODE:
1344{
1345 dREQ;
1346
1347 req->int2 = mode;
1348 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1349
1350 REQ_SEND;
1351}
1352
1353void
1354aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1360 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1361 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1362
1363 REQ_SEND;
1364}
1365
1366void
1367aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1368 PPCODE:
1369{
1370 dREQ;
1371
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);
1392
1393 REQ_SEND;
1394}
1395
1396void
1520aio_unlink (pathname,callback=&PL_sv_undef) 1397aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1521 SV8 * pathname
1522 SV * callback
1523 ALIAS: 1398 ALIAS:
1524 aio_unlink = REQ_UNLINK 1399 aio_unlink = EIO_UNLINK
1525 aio_rmdir = REQ_RMDIR 1400 aio_rmdir = EIO_RMDIR
1526 aio_readdir = REQ_READDIR 1401 aio_readdir = EIO_READDIR
1527 PPCODE: 1402 PPCODE:
1528{ 1403{
1529 dREQ; 1404 dREQ;
1530 1405
1531 req->type = ix; 1406 req->type = ix;
1532 req->sv1 = newSVsv (pathname); 1407 req_set_path1 (req, pathname);
1533 req->ptr1 = SvPVbyte_nolen (req->sv1);
1534 1408
1535 REQ_SEND; 1409 REQ_SEND;
1536} 1410}
1537 1411
1538void 1412void
1539aio_link (oldpath,newpath,callback=&PL_sv_undef) 1413aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1540 SV8 * oldpath
1541 SV8 * newpath
1542 SV * callback
1543 ALIAS: 1414 ALIAS:
1544 aio_link = REQ_LINK 1415 aio_link = EIO_LINK
1545 aio_symlink = REQ_SYMLINK 1416 aio_symlink = EIO_SYMLINK
1546 aio_rename = REQ_RENAME 1417 aio_rename = EIO_RENAME
1547 PPCODE: 1418 PPCODE:
1548{ 1419{
1420 eio_wd wd2 = 0;
1549 dREQ; 1421 dREQ;
1550 1422
1551 req->type = ix; 1423 req->type = ix;
1552 req->fh = newSVsv (oldpath); 1424 req_set_path1 (req, oldpath);
1553 req->ptr2 = SvPVbyte_nolen (req->fh); 1425 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1554 req->sv1 = newSVsv (newpath); 1426 req->int3 = (long)wd2;
1555 req->ptr1 = SvPVbyte_nolen (req->sv1);
1556 1427
1557 REQ_SEND; 1428 REQ_SEND;
1558} 1429}
1559 1430
1560void 1431void
1561aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1432aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1562 SV8 * pathname
1563 SV * callback
1564 UV mode
1565 UV dev
1566 PPCODE: 1433 PPCODE:
1567{ 1434{
1568 dREQ; 1435 dREQ;
1569 1436
1570 req->type = REQ_MKNOD; 1437 req->type = EIO_MKNOD;
1571 req->sv1 = newSVsv (pathname);
1572 req->ptr1 = SvPVbyte_nolen (req->sv1);
1573 req->mode = (mode_t)mode; 1438 req->int2 = (mode_t)mode;
1574 req->offs = dev; 1439 req->offs = dev;
1440 req_set_path1 (req, pathname);
1575 1441
1576 REQ_SEND; 1442 REQ_SEND;
1577} 1443}
1578 1444
1579void 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
1580aio_busy (delay,callback=&PL_sv_undef) 1541aio_busy (double delay, SV *callback=&PL_sv_undef)
1581 double delay
1582 SV * callback
1583 PPCODE: 1542 PPCODE:
1584{ 1543{
1585 dREQ; 1544 dREQ;
1586 1545
1587 req->type = REQ_BUSY; 1546 req->type = EIO_BUSY;
1588 req->int1 = delay < 0. ? 0 : delay; 1547 req->nv1 = delay < 0. ? 0. : delay;
1589 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1590 1548
1591 REQ_SEND; 1549 REQ_SEND;
1592} 1550}
1593 1551
1594void 1552void
1595aio_group (callback=&PL_sv_undef) 1553aio_group (SV *callback=&PL_sv_undef)
1596 SV * callback
1597 PROTOTYPE: ;$
1598 PPCODE: 1554 PPCODE:
1599{ 1555{
1600 dREQ; 1556 dREQ;
1601 1557
1602 req->type = REQ_GROUP; 1558 req->type = EIO_GROUP;
1603 1559
1604 req_send (req); 1560 req_submit (req);
1605 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1561 XPUSHs (req_sv (req, aio_grp_stash));
1606} 1562}
1607 1563
1608void 1564void
1609aio_nop (callback=&PL_sv_undef) 1565aio_nop (SV *callback=&PL_sv_undef)
1610 SV * callback 1566 ALIAS:
1567 aio_nop = EIO_NOP
1568 aio_sync = EIO_SYNC
1611 PPCODE: 1569 PPCODE:
1612{ 1570{
1613 dREQ; 1571 dREQ;
1614 1572
1615 req->type = REQ_NOP; 1573 req->type = ix;
1616 1574
1617 REQ_SEND; 1575 REQ_SEND;
1618} 1576}
1619 1577
1620int 1578int
1621aioreq_pri (int pri = 0) 1579aioreq_pri (int pri = 0)
1622 PROTOTYPE: ;$
1623 CODE: 1580 CODE:
1624 RETVAL = next_pri - PRI_BIAS; 1581 RETVAL = next_pri;
1625 if (items > 0) 1582 if (items > 0)
1626 { 1583 {
1627 if (pri < PRI_MIN) pri = PRI_MIN; 1584 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1628 if (pri > PRI_MAX) pri = PRI_MAX; 1585 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1629 next_pri = pri + PRI_BIAS; 1586 next_pri = pri;
1630 } 1587 }
1631 OUTPUT: 1588 OUTPUT:
1632 RETVAL 1589 RETVAL
1633 1590
1634void 1591void
1635aioreq_nice (int nice = 0) 1592aioreq_nice (int nice = 0)
1636 CODE: 1593 CODE:
1637 nice = next_pri - nice; 1594 nice = next_pri - nice;
1638 if (nice < PRI_MIN) nice = PRI_MIN; 1595 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1639 if (nice > PRI_MAX) nice = PRI_MAX; 1596 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1640 next_pri = nice + PRI_BIAS; 1597 next_pri = nice;
1641 1598
1642void 1599void
1643flush () 1600flush ()
1644 PROTOTYPE:
1645 CODE: 1601 CODE:
1646 while (nreqs) 1602 while (eio_nreqs ())
1647 { 1603 {
1648 poll_wait (); 1604 poll_wait ();
1649 poll_cb (); 1605 poll_cb ();
1650 } 1606 }
1651 1607
1652int 1608int
1653poll() 1609poll ()
1654 PROTOTYPE:
1655 CODE: 1610 CODE:
1656 if (nreqs)
1657 {
1658 poll_wait (); 1611 poll_wait ();
1659 RETVAL = poll_cb (); 1612 RETVAL = poll_cb ();
1660 }
1661 else
1662 RETVAL = 0;
1663 OUTPUT: 1613 OUTPUT:
1664 RETVAL 1614 RETVAL
1665 1615
1666int 1616int
1667poll_fileno() 1617poll_fileno ()
1668 PROTOTYPE:
1669 CODE: 1618 CODE:
1670 RETVAL = respipe [0]; 1619 RETVAL = s_epipe_fd (&respipe);
1671 OUTPUT: 1620 OUTPUT:
1672 RETVAL 1621 RETVAL
1673 1622
1674int 1623int
1675poll_cb(...) 1624poll_cb (...)
1676 PROTOTYPE: 1625 PROTOTYPE:
1677 CODE: 1626 CODE:
1678 RETVAL = poll_cb (); 1627 RETVAL = poll_cb ();
1679 OUTPUT: 1628 OUTPUT:
1680 RETVAL 1629 RETVAL
1681 1630
1682void 1631void
1683poll_wait() 1632poll_wait ()
1684 PROTOTYPE:
1685 CODE: 1633 CODE:
1686 if (nreqs)
1687 poll_wait (); 1634 poll_wait ();
1688 1635
1689int 1636int
1690nreqs() 1637nreqs ()
1691 PROTOTYPE:
1692 CODE: 1638 CODE:
1693 RETVAL = nreqs; 1639 RETVAL = eio_nreqs ();
1694 OUTPUT: 1640 OUTPUT:
1695 RETVAL 1641 RETVAL
1696 1642
1697int 1643int
1698nready() 1644nready ()
1699 PROTOTYPE:
1700 CODE: 1645 CODE:
1701 RETVAL = get_nready (); 1646 RETVAL = eio_nready ();
1702 OUTPUT: 1647 OUTPUT:
1703 RETVAL 1648 RETVAL
1704 1649
1705int 1650int
1706npending() 1651npending ()
1707 PROTOTYPE:
1708 CODE: 1652 CODE:
1709 RETVAL = get_npending (); 1653 RETVAL = eio_npending ();
1710 OUTPUT: 1654 OUTPUT:
1711 RETVAL 1655 RETVAL
1712 1656
1713int 1657int
1714nthreads() 1658nthreads ()
1715 PROTOTYPE:
1716 CODE: 1659 CODE:
1717 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1660 RETVAL = eio_nthreads ();
1718 RETVAL = started;
1719 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1720 OUTPUT: 1661 OUTPUT:
1721 RETVAL 1662 RETVAL
1722 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
1723PROTOTYPES: 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}
1724 1820
1725MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1821MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1726 1822
1727void 1823void
1728cancel (aio_req_ornot req) 1824cancel (aio_req_ornot req)
1729 CODE: 1825 CODE:
1730 req_cancel (req); 1826 eio_cancel (req);
1731 1827
1732void 1828void
1733cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1829cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1734 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
1735 SvREFCNT_dec (req->callback); 1839 SvREFCNT_dec (req->callback);
1736 req->callback = newSVsv (callback); 1840 req->callback = SvREFCNT_inc (cb_cv);
1841 }
1842}
1737 1843
1738MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1844MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1739 1845
1740void 1846void
1741add (aio_req grp, ...) 1847add (aio_req grp, ...)
1742 PPCODE: 1848 PPCODE:
1743{ 1849{
1744 int i; 1850 int i;
1745 aio_req req;
1746 1851
1747 if (grp->int1 == 2) 1852 if (grp->int1 == 2)
1748 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");
1749 1854
1750 for (i = 1; i < items; ++i ) 1855 for (i = 1; i < items; ++i )
1751 { 1856 {
1857 aio_req req;
1858
1752 if (GIMME_V != G_VOID) 1859 if (GIMME_V != G_VOID)
1753 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1860 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1754 1861
1755 req = SvAIO_REQ (ST (i)); 1862 req = SvAIO_REQ (ST (i));
1756 1863
1757 if (req) 1864 if (req)
1758 { 1865 eio_grp_add (grp, req);
1759 ++grp->size;
1760 req->grp = grp;
1761
1762 req->grp_prev = 0;
1763 req->grp_next = grp->grp_first;
1764
1765 if (grp->grp_first)
1766 grp->grp_first->grp_prev = req;
1767
1768 grp->grp_first = req;
1769 }
1770 } 1866 }
1771} 1867}
1772 1868
1773void 1869void
1774cancel_subs (aio_req_ornot req) 1870cancel_subs (aio_req_ornot req)
… …
1783 AV *av; 1879 AV *av;
1784 1880
1785 grp->errorno = errno; 1881 grp->errorno = errno;
1786 1882
1787 av = newAV (); 1883 av = newAV ();
1884 av_extend (av, items - 1);
1788 1885
1789 for (i = 1; i < items; ++i ) 1886 for (i = 1; i < items; ++i )
1790 av_push (av, newSVsv (ST (i))); 1887 av_push (av, newSVsv (ST (i)));
1791 1888
1792 SvREFCNT_dec (grp->sv1); 1889 SvREFCNT_dec (grp->sv1);
… …
1799 grp->errorno = errorno; 1896 grp->errorno = errorno;
1800 1897
1801void 1898void
1802limit (aio_req grp, int limit) 1899limit (aio_req grp, int limit)
1803 CODE: 1900 CODE:
1804 grp->int2 = limit; 1901 eio_grp_limit (grp, limit);
1805 aio_grp_feed (grp);
1806 1902
1807void 1903void
1808feed (aio_req grp, SV *callback=&PL_sv_undef) 1904feed (aio_req grp, SV *callback=&PL_sv_undef)
1809 CODE: 1905 CODE:
1810{ 1906{
1811 SvREFCNT_dec (grp->sv2); 1907 SvREFCNT_dec (grp->sv2);
1812 grp->sv2 = newSVsv (callback); 1908 grp->sv2 = newSVsv (callback);
1909 grp->feed = aio_grp_feed;
1813 1910
1814 if (grp->int2 <= 0) 1911 if (grp->int2 <= 0)
1815 grp->int2 = 2; 1912 grp->int2 = 2;
1816 1913
1817 aio_grp_feed (grp); 1914 eio_grp_limit (grp, grp->int2);
1818} 1915}
1819 1916

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