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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.93 by root, Wed Nov 8 02:01:02 2006 UTC vs.
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
34# if __linux 24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/fiemap.h>
28# define HAVE_FIEMAP 1
29# endif
30#endif
31
32/* perl namespace pollution */
33#undef VERSION
34
35/* perl stupidly overrides readdir and maybe others */
36/* with thread-unsafe versions, imagine that :( */
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>
35# include <sys/sendfile.h> 81 #include <sys/select.h>
36# elif __freebsd 82 #include <unistd.h>
37# include <sys/socket.h> 83 #include <utime.h>
38# include <sys/uio.h> 84 #include <signal.h>
39# elif __hpux 85
40# include <sys/socket.h> 86 #define EIO_STRUCT_STAT Stat_t
41# elif __solaris /* not yet */ 87
42# include <sys/sendfile.h> 88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
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
43# else 139# else
44# error sendfile support requested but not available 140# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 141# endif
46#endif 142#endif
47 143
48/* number of seconds after which idle threads exit */ 144/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 145#include "def0.h"
50 146
51/* used for struct dirent, AIX doesn't provide it */ 147#ifndef makedev
52#ifndef NAME_MAX 148# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif 149#endif
55 150#ifndef major
56#ifndef PTHREAD_STACK_MIN 151# define major(dev) ((dev) >> 8)
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif 152#endif
153#ifndef minor
154# define minor(dev) ((dev) & 0xff)
155#endif
60 156
61#if __ia64 157#ifndef PAGESIZE
62# define STACKSIZE 65536 158# define PAGESIZE sysconf (_SC_PAGESIZE)
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 159#endif
64# define STACKSIZE PTHREAD_STACK_MIN 160
161/*****************************************************************************/
162
163static void
164fiemap (eio_req *req)
165{
166 req->result = -1;
167
168#if HAVE_FIEMAP
169 int count = req->int3;
170
171 /* heuristic: first try with 64 extents if we don't know how many, */
172 /* as most files have (hopefully) fewer than this many extents */
173 /* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
174 if (count < 0)
175 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
176
177 for (;;)
178 {
179 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
180 errno = ENOMEM;
181 if (!fiemap)
182 return;
183
184 req->ptr1 = fiemap;
185 req->flags |= EIO_FLAG_PTR1_FREE;
186
187 fiemap->fm_start = req->offs;
188 fiemap->fm_length = req->size;
189 fiemap->fm_flags = req->int2;
190 fiemap->fm_extent_count = count;
191
192 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
193 return;
194
195 if (req->int3 >= 0)
196 break; /* when not autosizing we are done */
197
198 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
199 break; /* autosizing successful, we are done */
200
201 fiemap->fm_flags = req->int2;
202 fiemap->fm_extent_count = 0;
203
204 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
205 return;
206
207 count = fiemap->fm_mapped_extents;
208
209 free (fiemap);
210 }
211
212 req->result = 0;
213
65#else 214#else
66# define STACKSIZE 16384 215 errno = ENOSYS;
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 216#endif
79#endif 217}
80 218
81/* buffer size for various temporary buffers */ 219/*****************************************************************************/
82#define AIO_BUFSIZE 65536
83
84#define dBUF \
85 char *aio_buf; \
86 LOCK (wrklock); \
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \
89 if (!aio_buf) \
90 return -1;
91
92typedef SV SV8; /* byte-sv, used for argument-checking */
93 220
94enum { 221enum {
95 REQ_QUIT, 222 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}; 223};
107 224
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; 225typedef eio_req *aio_req;
142typedef aio_cb *aio_req_ornot; 226typedef eio_req *aio_req_ornot;
227typedef eio_wd aio_wd;
143 228
144enum { 229static SV *on_next_submit;
145 PRI_MIN = -4, 230static int next_pri = EIO_PRI_DEFAULT;
146 PRI_MAX = 4, 231static int max_outstanding;
147 232
148 DEFAULT_PRI = 0, 233static s_epipe respipe;
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152 234
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); 235static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 236static void req_cancel (aio_req req);
328 237
238static void
239want_poll (void)
240{
241 /* write a dummy byte to the pipe so fh becomes ready */
242 s_epipe_signal (&respipe);
243}
244
245static void
246done_poll (void)
247{
248 /* read any signals sent by the worker threads */
249 s_epipe_drain (&respipe);
250}
251
329/* must be called at most once */ 252/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 253static SV *
254req_sv (aio_req req, HV *stash)
331{ 255{
332 if (!req->self) 256 if (!req->self)
333 { 257 {
334 req->self = (SV *)newHV (); 258 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 260 }
337 261
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 262 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
339} 263}
340 264
341static aio_req SvAIO_REQ (SV *sv) 265static SV *
266newSVaio_wd (aio_wd wd)
267{
268 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
269}
270
271static aio_req
272SvAIO_REQ (SV *sv)
342{ 273{
343 MAGIC *mg; 274 MAGIC *mg;
344 275
345 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 276 if (!SvROK (sv)
277 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
278 || (SvSTASH (SvRV (sv)) != aio_grp_stash
279 && SvSTASH (SvRV (sv)) != aio_req_stash
280 && !sv_derived_from (sv, "IO::AIO::REQ")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 281 croak ("object of class IO::AIO::REQ expected");
347 282
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 283 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 284
350 return mg ? (aio_req)mg->mg_ptr : 0; 285 return mg ? (aio_req)mg->mg_ptr : 0;
351} 286}
352 287
288static aio_wd
289SvAIO_WD (SV *sv)
290{
291 if (!SvROK (sv)
292 || SvTYPE (SvRV (sv)) != SVt_PVMG
293 || SvSTASH (SvRV (sv)) != aio_wd_stash)
294 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
295
296 return (aio_wd)(long)SvIVX (SvRV (sv));
297}
298
299static void
353static void aio_grp_feed (aio_req grp) 300aio_grp_feed (aio_req grp)
354{ 301{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 302 if (grp->sv2 && SvOK (grp->sv2))
356 { 303 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 304 dSP;
362 305
363 ENTER; 306 ENTER;
364 SAVETMPS; 307 SAVETMPS;
365 PUSHMARK (SP); 308 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 309 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 310 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 311 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 312 SPAGAIN;
370 FREETMPS; 313 FREETMPS;
371 LEAVE; 314 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 } 315 }
382} 316}
383 317
384static void aio_grp_dec (aio_req grp) 318static void
319req_submit (eio_req *req)
385{ 320{
386 --grp->size; 321 eio_submit (req);
387 322
388 /* call feeder, if applicable */ 323 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 324 {
394 req_invoke (grp); 325 dSP;
395 req_free (grp); 326 SV *cb = sv_2mortal (on_next_submit);
327
328 on_next_submit = 0;
329
330 PUSHMARK (SP);
331 PUTBACK;
332 call_sv (cb, G_DISCARD | G_EVAL);
396 } 333 }
397} 334}
398 335
336static int
399static void req_invoke (aio_req req) 337req_invoke (eio_req *req)
400{ 338{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 340 SvREADONLY_off (req->sv2);
405 341
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 342 if (!EIO_CANCELLED (req) && req->callback)
407 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
408 ENTER; 348 ENTER;
409 SAVETMPS; 349 SAVETMPS;
410 PUSHMARK (SP); 350 PUSHMARK (SP);
411 EXTEND (SP, 1); 351 EXTEND (SP, 1);
412 352
353 /* do not recreate the result IV from scratch each time */
354 if (expect_true (sv_result_cache))
355 {
356 sv_result = sv_result_cache; sv_result_cache = 0;
357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
365
413 switch (req->type) 366 switch (req->type)
414 { 367 {
368 case EIO_WD_OPEN:
369 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
370 break;
371
415 case REQ_READDIR: 372 case EIO_READDIR:
416 { 373 {
417 SV *rv = &PL_sv_undef; 374 SV *rv = &PL_sv_undef;
418 375
419 if (req->result >= 0) 376 if (req->result >= 0)
420 { 377 {
421 int i; 378 int i;
422 char *buf = req->ptr2; 379 char *names = (char *)req->ptr2;
380 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 381 AV *av = newAV ();
424 382
425 av_extend (av, req->result - 1); 383 av_extend (av, req->result - 1);
426 384
427 for (i = 0; i < req->result; ++i) 385 for (i = 0; i < req->result; ++i)
428 { 386 {
429 SV *sv = newSVpv (buf, 0); 387 if (req->int1 & EIO_READDIR_DENTS)
388 {
389 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 390
391 if (req->int1 & EIO_READDIR_CUSTOM2)
392 {
393 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
394 AV *avent = newAV ();
395
396 av_extend (avent, 2);
397
398 if (!sv_type [ent->type])
399 {
400 sv_type [ent->type] = newSViv (ent->type);
401 SvREADONLY_on (sv_type [ent->type]);
402 }
403
404 av_store (avent, 0, namesv);
405 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
406 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
407
408 av_store (av, i, newRV_noinc ((SV *)avent));
409 }
410 else
431 av_store (av, i, sv); 411 av_store (av, i, namesv);
412
413 ++ent;
414 }
415 else
416 {
417 SV *name = newSVpv (names, 0);
418 av_store (av, i, name);
432 buf += SvCUR (sv) + 1; 419 names += SvCUR (name) + 1;
420 }
433 } 421 }
434 422
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 423 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 424 }
437 425
438 PUSHs (rv); 426 PUSHs (rv);
427
428 if (req->int1 & EIO_READDIR_CUSTOM1)
429 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
439 } 430 }
440 break; 431 break;
441 432
442 case REQ_OPEN: 433 case EIO_OPEN:
443 { 434 {
444 /* convert fd to fh */ 435 /* convert fd to fh */
445 SV *fh; 436 SV *fh = &PL_sv_undef;
446 437
447 PUSHs (sv_2mortal (newSViv (req->result))); 438 if (req->result >= 0)
448 PUTBACK; 439 {
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 440 GV *gv = (GV *)sv_newmortal ();
450 SPAGAIN; 441 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
442 char sym [64];
443 int symlen;
444
445 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
446 gv_init (gv, aio_stash, sym, symlen, 0);
451 447
452 fh = POPs; 448 symlen = snprintf (
453 PUSHMARK (SP); 449 sym,
450 sizeof (sym),
451 "%s&=%d",
452 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
453 (int)req->result
454 );
455
456 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
457 fh = (SV *)gv;
458 }
459
454 XPUSHs (fh); 460 PUSHs (fh);
455 } 461 }
456 break; 462 break;
457 463
464 case EIO_STATVFS:
465 case EIO_FSTATVFS:
466 {
467 SV *rv = &PL_sv_undef;
468
469#ifndef _WIN32
470 if (req->result >= 0)
471 {
472 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
473 HV *hv = newHV ();
474
475 rv = sv_2mortal (newRV_noinc ((SV *)hv));
476
477 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
478 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
479 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
480 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
481 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
482 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
483 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
484 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
485 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
486 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
487 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
488 }
489#endif
490
491 PUSHs (rv);
492 }
493
494 break;
495
458 case REQ_GROUP: 496 case EIO_GROUP:
459 req->int1 = 2; /* mark group as finished */ 497 req->int1 = 2; /* mark group as finished */
460 498
461 if (req->sv1) 499 if (req->sv1)
462 { 500 {
463 int i; 501 int i;
… …
467 for (i = 0; i <= AvFILL (av); ++i) 505 for (i = 0; i <= AvFILL (av); ++i)
468 PUSHs (*av_fetch (av, i, 0)); 506 PUSHs (*av_fetch (av, i, 0));
469 } 507 }
470 break; 508 break;
471 509
472 case REQ_NOP: 510 case EIO_NOP:
473 case REQ_BUSY: 511 case EIO_BUSY:
474 break; 512 break;
475 513
476 case REQ_READLINK: 514 case EIO_READLINK:
515 case EIO_REALPATH:
477 if (req->result > 0) 516 if (req->result > 0)
517 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
518 break;
519
520 case EIO_STAT:
521 case EIO_LSTAT:
522 case EIO_FSTAT:
523 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
524
525 if (!(PL_laststatval = req->result))
526 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
527 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
528
529 PUSHs (sv_result);
530 break;
531
532 case EIO_SEEK:
533 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
534 break;
535
536 case EIO_READ:
537 {
538 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
539 *SvEND (req->sv2) = 0;
540 SvPOK_only (req->sv2);
541 SvSETMAGIC (req->sv2);
542 PUSHs (sv_result);
543 }
544 break;
545
546 case EIO_CUSTOM:
547 if (req->feed == fiemap)
478 { 548 {
479 SvCUR_set (req->sv1, req->result); 549#if HAVE_FIEMAP
480 *SvEND (req->sv1) = 0;
481 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 }
580#endif
482 } 581 }
582 else
583 PUSHs (sv_result);
483 break; 584 break;
484 585
485 case REQ_STAT: 586 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
486 case REQ_LSTAT: 587 if (req->result > 0)
487 case REQ_FSTAT: 588 SvIV_set (sv_result, 0);
488 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 589 /* FALLTHROUGH */
489 PL_laststatval = req->result;
490 PL_statcache = *(Stat_t *)(req->ptr2);
491 PUSHs (sv_2mortal (newSViv (req->result)));
492 break;
493
494 case REQ_READ:
495 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
496 *SvEND (req->sv1) = 0;
497 PUSHs (sv_2mortal (newSViv (req->result)));
498 break;
499 590
500 default: 591 default:
501 PUSHs (sv_2mortal (newSViv (req->result))); 592 PUSHs (sv_result);
502 break; 593 break;
503 } 594 }
504 595
505 errno = req->errorno; 596 errno = req->errorno;
506 597
507 PUTBACK; 598 PUTBACK;
508 call_sv (req->callback, G_VOID | G_EVAL); 599 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
509 SPAGAIN; 600 SPAGAIN;
601
602 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
603 SvREFCNT_dec (sv_result);
604 else
605 sv_result_cache = sv_result;
510 606
511 FREETMPS; 607 FREETMPS;
512 LEAVE; 608 LEAVE;
609
610 PUTBACK;
513 } 611 }
514 612
515 if (req->grp) 613 return !!SvTRUE (ERRSV);
516 {
517 aio_req grp = req->grp;
518
519 /* unlink request */
520 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
521 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
522
523 if (grp->grp_first == req)
524 grp->grp_first = req->grp_next;
525
526 aio_grp_dec (grp);
527 }
528
529 if (SvTRUE (ERRSV))
530 {
531 req_free (req);
532 croak (0);
533 }
534} 614}
535 615
536static void req_free (aio_req req) 616static void
617req_destroy (aio_req req)
537{ 618{
538 if (req->self) 619 if (req->self)
539 { 620 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 621 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 622 SvREFCNT_dec (req->self);
542 } 623 }
543 624
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 625 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 626 SvREFCNT_dec (req->sv2);
627 SvREFCNT_dec (req->sv3);
628 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 629 SvREFCNT_dec (req->callback);
548 630
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 631 free (req);
553} 632}
554 633
634static void
555static void req_cancel_subs (aio_req grp) 635req_cancel_subs (aio_req grp)
556{ 636{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 637 if (grp->type != EIO_GROUP)
560 return; 638 return;
561 639
562 SvREFCNT_dec (grp->sv2); 640 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 641 grp->sv2 = 0;
564 642
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 643 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 644}
568 645
569static void req_cancel (aio_req req) 646static void ecb_cold
647create_respipe (void)
570{ 648{
571 req->flags |= FLAG_CANCELLED; 649 if (s_epipe_renew (&respipe))
572 650 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 651}
575 652
576static void *aio_proc(void *arg); 653static void
577 654poll_wait (void)
578static void start_thread (void)
579{ 655{
580 sigset_t fullsigset, oldsigset;
581 pthread_attr_t attr;
582
583 worker *wrk = calloc (1, sizeof (worker));
584
585 if (!wrk)
586 croak ("unable to allocate worker thread data");
587
588 pthread_attr_init (&attr);
589 pthread_attr_setstacksize (&attr, STACKSIZE);
590 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
591#ifdef PTHREAD_SCOPE_PROCESS
592 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
593#endif
594
595 sigfillset (&fullsigset);
596
597 LOCK (wrklock);
598 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
599
600 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
601 {
602 wrk->prev = &wrk_first;
603 wrk->next = wrk_first.next;
604 wrk_first.next->prev = wrk;
605 wrk_first.next = wrk;
606 ++started;
607 }
608 else
609 free (wrk);
610
611 sigprocmask (SIG_SETMASK, &oldsigset, 0);
612 UNLOCK (wrklock);
613}
614
615static void maybe_start_thread ()
616{
617 if (get_nthreads () >= wanted)
618 return;
619
620 /* todo: maybe use idle here, but might be less exact */
621 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
622 return;
623
624 start_thread ();
625}
626
627static void req_send (aio_req req)
628{
629 ++nreqs;
630
631 LOCK (reqlock);
632 ++nready;
633 reqq_push (&req_queue, req);
634 pthread_cond_signal (&reqwait);
635 UNLOCK (reqlock);
636
637 maybe_start_thread ();
638}
639
640static void end_thread (void)
641{
642 aio_req req;
643
644 Newz (0, req, 1, aio_cb);
645
646 req->type = REQ_QUIT;
647 req->pri = PRI_MAX + PRI_BIAS;
648
649 LOCK (reqlock);
650 reqq_push (&req_queue, req);
651 pthread_cond_signal (&reqwait);
652 UNLOCK (reqlock);
653
654 LOCK (wrklock);
655 --started;
656 UNLOCK (wrklock);
657}
658
659static void set_max_idle (int nthreads)
660{
661 if (WORDACCESS_UNSAFE) LOCK (reqlock);
662 max_idle = nthreads <= 0 ? 1 : nthreads;
663 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
664}
665
666static void min_parallel (int nthreads)
667{
668 if (wanted < nthreads)
669 wanted = nthreads;
670}
671
672static void max_parallel (int nthreads)
673{
674 if (wanted > nthreads)
675 wanted = nthreads;
676
677 while (started > wanted)
678 end_thread ();
679}
680
681static void poll_wait ()
682{
683 fd_set rfd;
684
685 while (nreqs) 656 while (eio_nreqs ())
686 { 657 {
687 int size; 658 int size;
688 if (WORDACCESS_UNSAFE) LOCK (reslock); 659
660 X_LOCK (reslock);
689 size = res_queue.size; 661 size = res_queue.size;
690 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 662 X_UNLOCK (reslock);
691 663
692 if (size) 664 if (size)
693 return; 665 return;
694 666
695 maybe_start_thread (); 667 etp_maybe_start_thread ();
696 668
697 FD_ZERO(&rfd); 669 s_epipe_wait (&respipe);
698 FD_SET(respipe [0], &rfd);
699
700 select (respipe [0] + 1, &rfd, 0, 0, 0);
701 } 670 }
702} 671}
703 672
704static int poll_cb () 673static int
674poll_cb (void)
705{ 675{
706 dSP;
707 int count = 0;
708 int maxreqs = max_poll_reqs;
709 int do_croak = 0;
710 struct timeval tv_start, tv_now;
711 aio_req req;
712
713 if (max_poll_time)
714 gettimeofday (&tv_start, 0);
715
716 for (;;) 676 for (;;)
717 { 677 {
718 for (;;) 678 int res = eio_poll ();
679
680 if (res > 0)
681 croak (0);
682
683 if (!max_outstanding || max_outstanding > eio_nreqs ())
684 return res;
685
686 poll_wait ();
687 }
688}
689
690static void ecb_cold
691reinit (void)
692{
693 create_respipe ();
694
695 if (eio_init (want_poll, done_poll) < 0)
696 croak ("IO::AIO: unable to initialise eio library");
697}
698
699/*****************************************************************************/
700
701#if !_POSIX_MAPPED_FILES
702# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
703# define munmap(addr,length) (errno = ENOSYS, -1)
704#endif
705
706#if !_POSIX_MEMORY_PROTECTION
707# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
708# define PROT_NONE 0
709# define PROT_WRITE 0
710# define MAP_PRIVATE 0
711# define MAP_SHARED 0
712# define MAP_FIXED 0
713#endif
714
715#define MMAP_MAGIC PERL_MAGIC_ext
716
717static int ecb_cold
718mmap_free (pTHX_ SV *sv, MAGIC *mg)
719{
720 int old_errno = errno;
721 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
722 errno = old_errno;
723
724 mg->mg_obj = 0; /* just in case */
725
726 SvREADONLY_off (sv);
727
728 if (SvPVX (sv) != mg->mg_ptr)
729 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
730
731 SvCUR_set (sv, 0);
732 SvPVX (sv) = 0;
733 SvOK_off (sv);
734
735 return 0;
736}
737
738static MGVTBL mmap_vtbl = {
739 0, 0, 0, 0, mmap_free
740};
741
742/*****************************************************************************/
743
744static SV *
745get_cb (SV *cb_sv)
746{
747 SvGETMAGIC (cb_sv);
748 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
749}
750
751static aio_req ecb_noinline
752dreq (SV *callback)
753{
754 SV *cb_cv;
755 aio_req req;
756 int req_pri = next_pri;
757 next_pri = EIO_PRI_DEFAULT;
758
759 cb_cv = get_cb (callback);
760
761 req = calloc (sizeof (*req), 1);
762 if (!req)
763 croak ("out of memory during eio_req allocation");
764
765 req->callback = SvREFCNT_inc (cb_cv);
766 req->pri = req_pri;
767
768 return req;
769}
770
771#define dREQ \
772 aio_req req = dreq (callback); \
773
774#define REQ_SEND \
775 PUTBACK; \
776 req_submit (req); \
777 SPAGAIN; \
778 \
779 if (GIMME_V != G_VOID) \
780 XPUSHs (req_sv (req, aio_req_stash));
781
782ecb_inline void
783req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
784{
785 if (expect_false (SvROK (path)))
786 {
787 SV *rv = SvRV (path);
788 SV *wdob;
789
790 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
719 { 791 {
720 maybe_start_thread (); 792 path = AvARRAY (rv)[1];
793 wdob = AvARRAY (rv)[0];
721 794
722 LOCK (reslock); 795 if (SvOK (wdob))
723 req = reqq_shift (&res_queue);
724
725 if (req)
726 { 796 {
727 --npending; 797 *wd = SvAIO_WD (wdob);
728 798 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
729 if (!res_queue.size)
730 {
731 /* read any signals sent by the worker threads */
732 char buf [32];
733 while (read (respipe [0], buf, 32) == 32)
734 ;
735 }
736 }
737
738 UNLOCK (reslock);
739
740 if (!req)
741 break;
742
743 --nreqs;
744
745 if (req->type == REQ_GROUP && req->size)
746 {
747 req->int1 = 1; /* mark request as delayed */
748 continue;
749 } 799 }
750 else 800 else
751 { 801 *wd = EIO_INVALID_WD;
752 req_invoke (req);
753
754 count++;
755 }
756
757 req_free (req);
758
759 if (maxreqs && !--maxreqs)
760 break;
761
762 if (max_poll_time)
763 {
764 gettimeofday (&tv_now, 0);
765
766 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
767 break;
768 }
769 } 802 }
803 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
804 {
805 *wd = (aio_wd)(long)SvIVX (rv);
806 *wdsv = SvREFCNT_inc_NN (rv);
807 *ptr = ".";
808 return; /* path set to "." */
809 }
810 else
811 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
812 }
770 813
771 if (nreqs <= max_outstanding) 814 *pathsv = newSVsv (path);
815 *ptr = SvPVbyte_nolen (*pathsv);
816}
817
818static void ecb_noinline
819req_set_path1 (aio_req req, SV *path)
820{
821 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
822}
823
824static void ecb_noinline
825req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
826{
827 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
828
829 switch (SvTYPE (rv))
830 {
831 case SVt_PVIO:
832 case SVt_PVLV:
833 case SVt_PVGV:
834 req->type = type_fh;
835 req->sv1 = newSVsv (fh_or_path);
836 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
772 break; 837 break;
773 838
774 poll_wait (); 839 default:
775 840 req->type = type_path;
776 ++maxreqs; 841 req_set_path1 (req, fh_or_path);
842 break;
777 } 843 }
778
779 return count;
780} 844}
781 845
782static void create_pipe () 846XS(boot_IO__AIO) ecb_cold;
783{
784 if (pipe (respipe))
785 croak ("unable to initialize result pipe");
786 847
787 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
788 croak ("cannot set result pipe to nonblocking mode");
789
790 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
791 croak ("cannot set result pipe to nonblocking mode");
792}
793
794/*****************************************************************************/
795/* work around various missing functions */
796
797#if !HAVE_PREADWRITE
798# define pread aio_pread
799# define pwrite aio_pwrite
800
801/*
802 * make our pread/pwrite safe against themselves, but not against
803 * normal read/write by using a mutex. slows down execution a lot,
804 * but that's your problem, not mine.
805 */
806static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
807
808static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
809{
810 ssize_t res;
811 off_t ooffset;
812
813 LOCK (preadwritelock);
814 ooffset = lseek (fd, 0, SEEK_CUR);
815 lseek (fd, offset, SEEK_SET);
816 res = read (fd, buf, count);
817 lseek (fd, ooffset, SEEK_SET);
818 UNLOCK (preadwritelock);
819
820 return res;
821}
822
823static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
824{
825 ssize_t res;
826 off_t ooffset;
827
828 LOCK (preadwritelock);
829 ooffset = lseek (fd, 0, SEEK_CUR);
830 lseek (fd, offset, SEEK_SET);
831 res = write (fd, buf, count);
832 lseek (fd, offset, SEEK_SET);
833 UNLOCK (preadwritelock);
834
835 return res;
836}
837#endif
838
839#if !HAVE_FDATASYNC
840# define fdatasync fsync
841#endif
842
843#if !HAVE_READAHEAD
844# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
845
846static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
847{
848 dBUF;
849
850 while (count > 0)
851 {
852 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
853
854 pread (fd, aio_buf, len, offset);
855 offset += len;
856 count -= len;
857 }
858
859 errno = 0;
860}
861
862#endif
863
864#if !HAVE_READDIR_R
865# define readdir_r aio_readdir_r
866
867static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
868
869static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
870{
871 struct dirent *e;
872 int errorno;
873
874 LOCK (readdirlock);
875
876 e = readdir (dirp);
877 errorno = errno;
878
879 if (e)
880 {
881 *res = ent;
882 strcpy (ent->d_name, e->d_name);
883 }
884 else
885 *res = 0;
886
887 UNLOCK (readdirlock);
888
889 errno = errorno;
890 return e ? 0 : -1;
891}
892#endif
893
894/* sendfile always needs emulation */
895static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
896{
897 ssize_t res;
898
899 if (!count)
900 return 0;
901
902#if HAVE_SENDFILE
903# if __linux
904 res = sendfile (ofd, ifd, &offset, count);
905
906# elif __freebsd
907 /*
908 * Of course, the freebsd sendfile is a dire hack with no thoughts
909 * wasted on making it similar to other I/O functions.
910 */
911 {
912 off_t sbytes;
913 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
914
915 if (res < 0 && sbytes)
916 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
917 res = sbytes;
918 }
919
920# elif __hpux
921 res = sendfile (ofd, ifd, offset, count, 0, 0);
922
923# elif __solaris
924 {
925 struct sendfilevec vec;
926 size_t sbytes;
927
928 vec.sfv_fd = ifd;
929 vec.sfv_flag = 0;
930 vec.sfv_off = offset;
931 vec.sfv_len = count;
932
933 res = sendfilev (ofd, &vec, 1, &sbytes);
934
935 if (res < 0 && sbytes)
936 res = sbytes;
937 }
938
939# endif
940#else
941 res = -1;
942 errno = ENOSYS;
943#endif
944
945 if (res < 0
946 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
947#if __solaris
948 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
949#endif
950 )
951 )
952 {
953 /* emulate sendfile. this is a major pain in the ass */
954 dBUF;
955
956 res = 0;
957
958 while (count)
959 {
960 ssize_t cnt;
961
962 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
963
964 if (cnt <= 0)
965 {
966 if (cnt && !res) res = -1;
967 break;
968 }
969
970 cnt = write (ofd, aio_buf, cnt);
971
972 if (cnt <= 0)
973 {
974 if (cnt && !res) res = -1;
975 break;
976 }
977
978 offset += cnt;
979 res += cnt;
980 count -= cnt;
981 }
982 }
983
984 return res;
985}
986
987/* read a full directory */
988static void scandir_ (aio_req req, worker *self)
989{
990 DIR *dirp;
991 union
992 {
993 struct dirent d;
994 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
995 } *u;
996 struct dirent *entp;
997 char *name, *names;
998 int memlen = 4096;
999 int memofs = 0;
1000 int res = 0;
1001 int errorno;
1002
1003 LOCK (wrklock);
1004 self->dirp = dirp = opendir (req->ptr1);
1005 self->dbuf = u = malloc (sizeof (*u));
1006 req->flags |= FLAG_PTR2_FREE;
1007 req->ptr2 = names = malloc (memlen);
1008 UNLOCK (wrklock);
1009
1010 if (dirp && u && names)
1011 for (;;)
1012 {
1013 errno = 0;
1014 readdir_r (dirp, &u->d, &entp);
1015
1016 if (!entp)
1017 break;
1018
1019 name = entp->d_name;
1020
1021 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1022 {
1023 int len = strlen (name) + 1;
1024
1025 res++;
1026
1027 while (memofs + len > memlen)
1028 {
1029 memlen *= 2;
1030 LOCK (wrklock);
1031 req->ptr2 = names = realloc (names, memlen);
1032 UNLOCK (wrklock);
1033
1034 if (!names)
1035 break;
1036 }
1037
1038 memcpy (names + memofs, name, len);
1039 memofs += len;
1040 }
1041 }
1042
1043 if (errno)
1044 res = -1;
1045
1046 req->result = res;
1047}
1048
1049/*****************************************************************************/
1050
1051static void *aio_proc (void *thr_arg)
1052{
1053 aio_req req;
1054 struct timespec ts;
1055 worker *self = (worker *)thr_arg;
1056
1057 /* try to distribute timeouts somewhat evenly */
1058 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1059 * (1000000000UL / 1024UL);
1060
1061 for (;;)
1062 {
1063 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1064
1065 LOCK (reqlock);
1066
1067 for (;;)
1068 {
1069 self->req = req = reqq_shift (&req_queue);
1070
1071 if (req)
1072 break;
1073
1074 ++idle;
1075
1076 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1077 == ETIMEDOUT)
1078 {
1079 if (idle > max_idle)
1080 {
1081 --idle;
1082 UNLOCK (reqlock);
1083 LOCK (wrklock);
1084 --started;
1085 UNLOCK (wrklock);
1086 goto quit;
1087 }
1088
1089 /* we are allowed to idle, so do so without any timeout */
1090 pthread_cond_wait (&reqwait, &reqlock);
1091 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1092 }
1093
1094 --idle;
1095 }
1096
1097 --nready;
1098
1099 UNLOCK (reqlock);
1100
1101 errno = 0; /* strictly unnecessary */
1102
1103 if (!(req->flags & FLAG_CANCELLED))
1104 switch (req->type)
1105 {
1106 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1107 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1108
1109 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1110 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1111
1112 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1113 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1115
1116 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1117 case REQ_CLOSE: req->result = close (req->int1); break;
1118 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1119 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1120 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1121 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1122 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1123 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1124 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1125
1126 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1127 case REQ_FSYNC: req->result = fsync (req->int1); break;
1128 case REQ_READDIR: scandir_ (req, self); break;
1129
1130 case REQ_BUSY:
1131 {
1132 struct timeval tv;
1133
1134 tv.tv_sec = req->int1;
1135 tv.tv_usec = req->int2;
1136
1137 req->result = select (0, 0, 0, 0, &tv);
1138 }
1139
1140 case REQ_GROUP:
1141 case REQ_NOP:
1142 break;
1143
1144 case REQ_QUIT:
1145 goto quit;
1146
1147 default:
1148 req->result = ENOSYS;
1149 break;
1150 }
1151
1152 req->errorno = errno;
1153
1154 LOCK (reslock);
1155
1156 ++npending;
1157
1158 if (!reqq_push (&res_queue, req))
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 self->req = 0;
1163 worker_clear (self);
1164
1165 UNLOCK (reslock);
1166 }
1167
1168quit:
1169 LOCK (wrklock);
1170 worker_free (self);
1171 UNLOCK (wrklock);
1172
1173 return 0;
1174}
1175
1176/*****************************************************************************/
1177
1178static void atfork_prepare (void)
1179{
1180 LOCK (wrklock);
1181 LOCK (reqlock);
1182 LOCK (reslock);
1183#if !HAVE_PREADWRITE
1184 LOCK (preadwritelock);
1185#endif
1186#if !HAVE_READDIR_R
1187 LOCK (readdirlock);
1188#endif
1189}
1190
1191static void atfork_parent (void)
1192{
1193#if !HAVE_READDIR_R
1194 UNLOCK (readdirlock);
1195#endif
1196#if !HAVE_PREADWRITE
1197 UNLOCK (preadwritelock);
1198#endif
1199 UNLOCK (reslock);
1200 UNLOCK (reqlock);
1201 UNLOCK (wrklock);
1202}
1203
1204static void atfork_child (void)
1205{
1206 aio_req prv;
1207
1208 while (prv = reqq_shift (&req_queue))
1209 req_free (prv);
1210
1211 while (prv = reqq_shift (&res_queue))
1212 req_free (prv);
1213
1214 while (wrk_first.next != &wrk_first)
1215 {
1216 worker *wrk = wrk_first.next;
1217
1218 if (wrk->req)
1219 req_free (wrk->req);
1220
1221 worker_clear (wrk);
1222 worker_free (wrk);
1223 }
1224
1225 started = 0;
1226 idle = 0;
1227 nreqs = 0;
1228 nready = 0;
1229 npending = 0;
1230
1231 close (respipe [0]);
1232 close (respipe [1]);
1233 create_pipe ();
1234
1235 atfork_parent ();
1236}
1237
1238#define dREQ \
1239 aio_req req; \
1240 int req_pri = next_pri; \
1241 next_pri = DEFAULT_PRI + PRI_BIAS; \
1242 \
1243 if (SvOK (callback) && !SvROK (callback)) \
1244 croak ("callback must be undef or of reference type"); \
1245 \
1246 Newz (0, req, 1, aio_cb); \
1247 if (!req) \
1248 croak ("out of memory during aio_req allocation"); \
1249 \
1250 req->callback = newSVsv (callback); \
1251 req->pri = req_pri
1252
1253#define REQ_SEND \
1254 req_send (req); \
1255 \
1256 if (GIMME_V != G_VOID) \
1257 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1258
1259MODULE = IO::AIO PACKAGE = IO::AIO 848MODULE = IO::AIO PACKAGE = IO::AIO
1260 849
1261PROTOTYPES: ENABLE 850PROTOTYPES: ENABLE
1262 851
1263BOOT: 852BOOT:
1264{ 853{
854 static const struct {
855 const char *name;
856 IV iv;
857 } *civ, const_iv[] = {
858# define const_niv(name, value) { # name, (IV) value },
859# define const_iv(name) { # name, (IV) name },
860# define const_eio(name) { # name, (IV) EIO_ ## name },
861
862 /* you have to re-run ./gendef0 after adding/Removing any constants here */
863
864 const_iv (ENOSYS)
865 const_iv (EXDEV)
866 const_iv (EBADR)
867
868 const_iv (O_RDONLY)
869 const_iv (O_WRONLY)
870 const_iv (O_RDWR)
871 const_iv (O_CREAT)
872 const_iv (O_TRUNC)
873 const_iv (O_EXCL)
874 const_iv (O_APPEND)
875
876 const_iv (O_ASYNC)
877 const_iv (O_DIRECT)
878 const_iv (O_NOATIME)
879
880 const_iv (O_CLOEXEC)
881 const_iv (O_NOCTTY)
882 const_iv (O_NOFOLLOW)
883 const_iv (O_NONBLOCK)
884 const_iv (O_EXEC)
885 const_iv (O_SEARCH)
886 const_iv (O_DIRECTORY)
887 const_iv (O_DSYNC)
888 const_iv (O_RSYNC)
889 const_iv (O_SYNC)
890 const_iv (O_TTY_INIT)
891
892 const_iv (S_IFIFO)
893 const_iv (S_IFCHR)
894 const_iv (S_IFBLK)
895 const_iv (S_IFLNK)
896 const_iv (S_IFREG)
897 const_iv (S_IFDIR)
898 const_iv (S_IFWHT)
899 const_iv (S_IFSOCK)
900 const_iv (S_IFMT)
901
902 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
903 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
904 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
905 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
906 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
907 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
908
909 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
910 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
911 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
912 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
913 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
914
915 const_iv (ST_RDONLY)
916 const_iv (ST_NOSUID)
917 const_iv (ST_NODEV)
918 const_iv (ST_NOEXEC)
919 const_iv (ST_SYNCHRONOUS)
920 const_iv (ST_MANDLOCK)
921 const_iv (ST_WRITE)
922 const_iv (ST_APPEND)
923 const_iv (ST_IMMUTABLE)
924 const_iv (ST_NOATIME)
925 const_iv (ST_NODIRATIME)
926 const_iv (ST_RELATIME)
927
928 const_iv (PROT_NONE)
929 const_iv (PROT_EXEC)
930 const_iv (PROT_READ)
931 const_iv (PROT_WRITE)
932
933 /*const_iv (MAP_FIXED)*/
934 const_iv (MAP_PRIVATE)
935 const_iv (MAP_SHARED)
936 const_iv (MAP_ANONYMOUS)
937
938 /* linuxish */
939 const_iv (MAP_HUGETLB)
940 const_iv (MAP_LOCKED)
941 const_iv (MAP_NORESERVE)
942 const_iv (MAP_POPULATE)
943 const_iv (MAP_NONBLOCK)
944
945 const_iv (FIEMAP_FLAG_SYNC)
946 const_iv (FIEMAP_FLAG_XATTR)
947 const_iv (FIEMAP_FLAGS_COMPAT)
948 const_iv (FIEMAP_EXTENT_LAST)
949 const_iv (FIEMAP_EXTENT_UNKNOWN)
950 const_iv (FIEMAP_EXTENT_DELALLOC)
951 const_iv (FIEMAP_EXTENT_ENCODED)
952 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
953 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
954 const_iv (FIEMAP_EXTENT_DATA_INLINE)
955 const_iv (FIEMAP_EXTENT_DATA_TAIL)
956 const_iv (FIEMAP_EXTENT_UNWRITTEN)
957 const_iv (FIEMAP_EXTENT_MERGED)
958 const_iv (FIEMAP_EXTENT_SHARED)
959
960 const_eio (SEEK_SET)
961 const_eio (SEEK_CUR)
962 const_eio (SEEK_END)
963
964 const_eio (MCL_FUTURE)
965 const_eio (MCL_CURRENT)
966
967 const_eio (MS_ASYNC)
968 const_eio (MS_INVALIDATE)
969 const_eio (MS_SYNC)
970
971 const_eio (MT_MODIFY)
972
973 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
974 const_eio (SYNC_FILE_RANGE_WRITE)
975 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
976
977 const_eio (FALLOC_FL_KEEP_SIZE)
978
979 const_eio (READDIR_DENTS)
980 const_eio (READDIR_DIRS_FIRST)
981 const_eio (READDIR_STAT_ORDER)
982 const_eio (READDIR_FOUND_UNKNOWN)
983
984 const_eio (DT_UNKNOWN)
985 const_eio (DT_FIFO)
986 const_eio (DT_CHR)
987 const_eio (DT_DIR)
988 const_eio (DT_BLK)
989 const_eio (DT_REG)
990 const_eio (DT_LNK)
991 const_eio (DT_SOCK)
992 const_eio (DT_WHT)
993 };
994
1265 HV *stash = gv_stashpv ("IO::AIO", 1); 995 aio_stash = gv_stashpv ("IO::AIO" , 1);
996 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
997 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
998 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1266 999
1267 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1000 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1268 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1001 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1269 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1270 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1271 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1272 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1273 1002
1274 create_pipe (); 1003 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1275 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1276}
1277 1004
1005 reinit ();
1006}
1007
1278void 1008void
1009reinit ()
1010 PROTOTYPE:
1011
1012void
1279max_poll_reqs (int nreqs) 1013max_poll_reqs (unsigned int nreqs)
1280 PROTOTYPE: $ 1014 PROTOTYPE: $
1281 CODE: 1015 CODE:
1282 max_poll_reqs = nreqs; 1016 eio_set_max_poll_reqs (nreqs);
1283 1017
1284void 1018void
1285max_poll_time (double nseconds) 1019max_poll_time (double nseconds)
1286 PROTOTYPE: $ 1020 PROTOTYPE: $
1287 CODE: 1021 CODE:
1288 max_poll_time = nseconds * AIO_TICKS; 1022 eio_set_max_poll_time (nseconds);
1289 1023
1290void 1024void
1291min_parallel (int nthreads) 1025min_parallel (unsigned int nthreads)
1292 PROTOTYPE: $
1293
1294void
1295max_parallel (int nthreads)
1296 PROTOTYPE: $
1297
1298void
1299max_idle (int nthreads)
1300 PROTOTYPE: $ 1026 PROTOTYPE: $
1301 CODE: 1027 CODE:
1302 set_max_idle (nthreads); 1028 eio_set_min_parallel (nthreads);
1303 1029
1304int 1030void
1305max_outstanding (int maxreqs) 1031max_parallel (unsigned int nthreads)
1306 PROTOTYPE: $ 1032 PROTOTYPE: $
1307 CODE: 1033 CODE:
1308 RETVAL = max_outstanding; 1034 eio_set_max_parallel (nthreads);
1035
1036void
1037max_idle (unsigned int nthreads)
1038 PROTOTYPE: $
1039 CODE:
1040 eio_set_max_idle (nthreads);
1041
1042void
1043idle_timeout (unsigned int seconds)
1044 PROTOTYPE: $
1045 CODE:
1046 eio_set_idle_timeout (seconds);
1047
1048void
1049max_outstanding (unsigned int maxreqs)
1050 PROTOTYPE: $
1051 CODE:
1309 max_outstanding = maxreqs; 1052 max_outstanding = maxreqs;
1310 OUTPUT:
1311 RETVAL
1312 1053
1313void 1054void
1314aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1055aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1315 SV8 * pathname
1316 int flags
1317 int mode
1318 SV * callback
1319 PROTOTYPE: $$$;$
1320 PPCODE: 1056 PPCODE:
1321{ 1057{
1322 dREQ; 1058 dREQ;
1323 1059
1060 req->type = EIO_WD_OPEN;
1061 req_set_path1 (req, pathname);
1062
1063 REQ_SEND;
1064}
1065
1066void
1067aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1068 PPCODE:
1069{
1070 dREQ;
1071
1324 req->type = REQ_OPEN; 1072 req->type = EIO_OPEN;
1325 req->sv1 = newSVsv (pathname); 1073 req_set_path1 (req, pathname);
1326 req->ptr1 = SvPVbyte_nolen (req->sv1);
1327 req->int1 = flags; 1074 req->int1 = flags;
1328 req->mode = mode; 1075 req->int2 = mode;
1329 1076
1330 REQ_SEND; 1077 REQ_SEND;
1331} 1078}
1332 1079
1333void 1080void
1334aio_close (fh,callback=&PL_sv_undef) 1081aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1335 SV * fh
1336 SV * callback
1337 PROTOTYPE: $;$
1338 ALIAS: 1082 ALIAS:
1339 aio_close = REQ_CLOSE
1340 aio_fsync = REQ_FSYNC 1083 aio_fsync = EIO_FSYNC
1341 aio_fdatasync = REQ_FDATASYNC 1084 aio_fdatasync = EIO_FDATASYNC
1085 aio_syncfs = EIO_SYNCFS
1342 PPCODE: 1086 PPCODE:
1343{ 1087{
1088 int fd = s_fileno_croak (fh, 0);
1344 dREQ; 1089 dREQ;
1345 1090
1346 req->type = ix; 1091 req->type = ix;
1347 req->fh = newSVsv (fh); 1092 req->sv1 = newSVsv (fh);
1348 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1093 req->int1 = fd;
1349 1094
1350 REQ_SEND (req); 1095 REQ_SEND;
1351} 1096}
1352 1097
1353void 1098void
1099aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1100 PPCODE:
1101{
1102 int fd = s_fileno_croak (fh, 0);
1103 dREQ;
1104
1105 req->type = EIO_SYNC_FILE_RANGE;
1106 req->sv1 = newSVsv (fh);
1107 req->int1 = fd;
1108 req->offs = offset;
1109 req->size = nbytes;
1110 req->int2 = flags;
1111
1112 REQ_SEND;
1113}
1114
1115void
1116aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1117 PPCODE:
1118{
1119 int fd = s_fileno_croak (fh, 0);
1120 dREQ;
1121
1122 req->type = EIO_FALLOCATE;
1123 req->sv1 = newSVsv (fh);
1124 req->int1 = fd;
1125 req->int2 = mode;
1126 req->offs = offset;
1127 req->size = len;
1128
1129 REQ_SEND;
1130}
1131
1132void
1133aio_close (SV *fh, SV *callback=&PL_sv_undef)
1134 PPCODE:
1135{
1136 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1137 int fd = s_fileno_croak (fh, 0);
1138 dREQ;
1139
1140 if (expect_false (close_fd < 0))
1141 {
1142 int pipefd [2];
1143
1144 if (
1145#ifdef _WIN32
1146 _pipe (pipefd, 1, _O_BINARY) < 0
1147#else
1148 pipe (pipefd) < 0
1149 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1150#endif
1151 || close (pipefd [1]) < 0
1152 )
1153 abort (); /*D*/
1154
1155 close_fd = pipefd [0];
1156 }
1157
1158 req->type = EIO_DUP2;
1159 req->int1 = close_fd;
1160 req->sv2 = newSVsv (fh);
1161 req->int2 = fd;
1162
1163 REQ_SEND;
1164}
1165
1166void
1167aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1168 PPCODE:
1169{
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
1354aio_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)
1355 SV * fh
1356 UV offset
1357 UV length
1358 SV8 * data
1359 UV dataoffset
1360 SV * callback
1361 ALIAS: 1184 ALIAS:
1362 aio_read = REQ_READ 1185 aio_read = EIO_READ
1363 aio_write = REQ_WRITE 1186 aio_write = EIO_WRITE
1364 PROTOTYPE: $$$$$;$
1365 PPCODE: 1187 PPCODE:
1366{ 1188{
1367 STRLEN svlen; 1189 STRLEN svlen;
1190 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1368 char *svptr = SvPVbyte (data, svlen); 1191 char *svptr = SvPVbyte (data, svlen);
1369 1192 UV len = SvUV (length);
1370 SvUPGRADE (data, SVt_PV);
1371 SvPOK_on (data);
1372 1193
1373 if (dataoffset < 0) 1194 if (dataoffset < 0)
1374 dataoffset += svlen; 1195 dataoffset += svlen;
1375 1196
1376 if (dataoffset < 0 || dataoffset > svlen) 1197 if (dataoffset < 0 || dataoffset > svlen)
1377 croak ("data offset outside of string"); 1198 croak ("dataoffset outside of data scalar");
1378 1199
1379 if (ix == REQ_WRITE) 1200 if (ix == EIO_WRITE)
1380 { 1201 {
1381 /* write: check length and adjust. */ 1202 /* write: check length and adjust. */
1382 if (length < 0 || length + dataoffset > svlen) 1203 if (!SvOK (length) || len + dataoffset > svlen)
1383 length = svlen - dataoffset; 1204 len = svlen - dataoffset;
1384 } 1205 }
1385 else 1206 else
1386 { 1207 {
1387 /* read: grow scalar as necessary */ 1208 /* read: check type and grow scalar as necessary */
1209 SvUPGRADE (data, SVt_PV);
1388 svptr = SvGROW (data, length + dataoffset); 1210 svptr = SvGROW (data, len + dataoffset + 1);
1389 } 1211 }
1390
1391 if (length < 0)
1392 croak ("length must not be negative");
1393 1212
1394 { 1213 {
1395 dREQ; 1214 dREQ;
1396 1215
1397 req->type = ix; 1216 req->type = ix;
1398 req->fh = newSVsv (fh); 1217 req->sv1 = newSVsv (fh);
1399 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1218 req->int1 = fd;
1400 : IoOFP (sv_2io (fh))); 1219 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1401 req->offs = offset;
1402 req->size = length; 1220 req->size = len;
1403 req->sv1 = SvREFCNT_inc (data); 1221 req->sv2 = SvREFCNT_inc (data);
1404 req->ptr1 = (char *)svptr + dataoffset; 1222 req->ptr2 = (char *)svptr + dataoffset;
1405 req->stroffset = dataoffset; 1223 req->stroffset = dataoffset;
1406 1224
1407 if (!SvREADONLY (data)) 1225 if (!SvREADONLY (data))
1408 { 1226 {
1409 SvREADONLY_on (data); 1227 SvREADONLY_on (data);
1410 req->flags |= FLAG_SV1_RO_OFF; 1228 req->flags |= FLAG_SV2_RO_OFF;
1411 } 1229 }
1412 1230
1413 REQ_SEND; 1231 REQ_SEND;
1414 } 1232 }
1415} 1233}
1416 1234
1417void 1235void
1418aio_readlink (path,callback=&PL_sv_undef) 1236aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1419 SV8 * path 1237 ALIAS:
1420 SV * callback 1238 aio_readlink = EIO_READLINK
1421 PROTOTYPE: $$;$ 1239 aio_realpath = EIO_REALPATH
1422 PPCODE: 1240 PPCODE:
1423{ 1241{
1424 SV *data;
1425 dREQ; 1242 dREQ;
1426 1243
1427 data = newSV (NAME_MAX);
1428 SvPOK_on (data);
1429
1430 req->type = REQ_READLINK; 1244 req->type = ix;
1431 req->fh = newSVsv (path); 1245 req_set_path1 (req, pathname);
1432 req->ptr2 = SvPVbyte_nolen (req->fh);
1433 req->sv1 = data;
1434 req->ptr1 = SvPVbyte_nolen (data);
1435 1246
1436 REQ_SEND; 1247 REQ_SEND;
1437} 1248}
1438 1249
1439void 1250void
1440aio_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)
1441 SV * out_fh
1442 SV * in_fh
1443 UV in_offset
1444 UV length
1445 SV * callback
1446 PROTOTYPE: $$$$;$
1447 PPCODE: 1252 PPCODE:
1448{ 1253{
1254 int ifd = s_fileno_croak (in_fh , 0);
1255 int ofd = s_fileno_croak (out_fh, 1);
1449 dREQ; 1256 dREQ;
1450 1257
1451 req->type = REQ_SENDFILE; 1258 req->type = EIO_SENDFILE;
1452 req->fh = newSVsv (out_fh); 1259 req->sv1 = newSVsv (out_fh);
1453 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1260 req->int1 = ofd;
1454 req->sv2 = newSVsv (in_fh); 1261 req->sv2 = newSVsv (in_fh);
1455 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1262 req->int2 = ifd;
1456 req->offs = in_offset; 1263 req->offs = in_offset;
1457 req->size = length; 1264 req->size = length;
1458 1265
1459 REQ_SEND; 1266 REQ_SEND;
1460} 1267}
1461 1268
1462void 1269void
1463aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1270aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1464 SV * fh
1465 UV offset
1466 IV length
1467 SV * callback
1468 PROTOTYPE: $$$;$
1469 PPCODE: 1271 PPCODE:
1470{ 1272{
1273 int fd = s_fileno_croak (fh, 0);
1471 dREQ; 1274 dREQ;
1472 1275
1473 req->type = REQ_READAHEAD; 1276 req->type = EIO_READAHEAD;
1474 req->fh = newSVsv (fh); 1277 req->sv1 = newSVsv (fh);
1475 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1278 req->int1 = fd;
1476 req->offs = offset; 1279 req->offs = offset;
1477 req->size = length; 1280 req->size = length;
1478 1281
1479 REQ_SEND; 1282 REQ_SEND;
1480} 1283}
1481 1284
1482void 1285void
1483aio_stat (fh_or_path,callback=&PL_sv_undef) 1286aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1484 SV8 * fh_or_path
1485 SV * callback
1486 ALIAS: 1287 ALIAS:
1487 aio_stat = REQ_STAT 1288 aio_stat = EIO_STAT
1488 aio_lstat = REQ_LSTAT 1289 aio_lstat = EIO_LSTAT
1290 aio_statvfs = EIO_STATVFS
1489 PPCODE: 1291 PPCODE:
1490{ 1292{
1491 dREQ; 1293 dREQ;
1492 1294
1493 req->ptr2 = malloc (sizeof (Stat_t)); 1295 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1494 if (!req->ptr2)
1495 {
1496 req_free (req);
1497 croak ("out of memory during aio_stat statdata allocation");
1498 }
1499
1500 req->flags |= FLAG_PTR2_FREE;
1501
1502 if (SvPOK (fh_or_path))
1503 {
1504 req->type = ix;
1505 req->sv1 = newSVsv (fh_or_path);
1506 req->ptr1 = SvPVbyte_nolen (req->sv1);
1507 }
1508 else
1509 {
1510 req->type = REQ_FSTAT;
1511 req->fh = newSVsv (fh_or_path);
1512 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1513 }
1514 1296
1515 REQ_SEND; 1297 REQ_SEND;
1516} 1298}
1517 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
1518void 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
1519aio_unlink (pathname,callback=&PL_sv_undef) 1397aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1520 SV8 * pathname
1521 SV * callback
1522 ALIAS: 1398 ALIAS:
1523 aio_unlink = REQ_UNLINK 1399 aio_unlink = EIO_UNLINK
1524 aio_rmdir = REQ_RMDIR 1400 aio_rmdir = EIO_RMDIR
1525 aio_readdir = REQ_READDIR 1401 aio_readdir = EIO_READDIR
1526 PPCODE: 1402 PPCODE:
1527{ 1403{
1528 dREQ; 1404 dREQ;
1529 1405
1530 req->type = ix; 1406 req->type = ix;
1531 req->sv1 = newSVsv (pathname); 1407 req_set_path1 (req, pathname);
1532 req->ptr1 = SvPVbyte_nolen (req->sv1);
1533 1408
1534 REQ_SEND; 1409 REQ_SEND;
1535} 1410}
1536 1411
1537void 1412void
1538aio_link (oldpath,newpath,callback=&PL_sv_undef) 1413aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1539 SV8 * oldpath
1540 SV8 * newpath
1541 SV * callback
1542 ALIAS: 1414 ALIAS:
1543 aio_link = REQ_LINK 1415 aio_link = EIO_LINK
1544 aio_symlink = REQ_SYMLINK 1416 aio_symlink = EIO_SYMLINK
1545 aio_rename = REQ_RENAME 1417 aio_rename = EIO_RENAME
1546 PPCODE: 1418 PPCODE:
1547{ 1419{
1420 eio_wd wd2 = 0;
1548 dREQ; 1421 dREQ;
1549 1422
1550 req->type = ix; 1423 req->type = ix;
1551 req->fh = newSVsv (oldpath); 1424 req_set_path1 (req, oldpath);
1552 req->ptr2 = SvPVbyte_nolen (req->fh); 1425 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1553 req->sv1 = newSVsv (newpath); 1426 req->int3 = (long)wd2;
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 1427
1556 REQ_SEND; 1428 REQ_SEND;
1557} 1429}
1558 1430
1559void 1431void
1560aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1432aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1561 SV8 * pathname
1562 SV * callback
1563 UV mode
1564 UV dev
1565 PPCODE: 1433 PPCODE:
1566{ 1434{
1567 dREQ; 1435 dREQ;
1568 1436
1569 req->type = REQ_MKNOD; 1437 req->type = EIO_MKNOD;
1570 req->sv1 = newSVsv (pathname);
1571 req->ptr1 = SvPVbyte_nolen (req->sv1);
1572 req->mode = (mode_t)mode; 1438 req->int2 = (mode_t)mode;
1573 req->offs = dev; 1439 req->offs = dev;
1440 req_set_path1 (req, pathname);
1574 1441
1575 REQ_SEND; 1442 REQ_SEND;
1576} 1443}
1577 1444
1578void 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#if HAVE_FIEMAP
1532 /* keep our fingers crossed that the next two types are 64 bit */
1533 req->offs = start;
1534 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1535 req->int2 = flags;
1536 req->int3 = SvOK (count) ? SvIV (count) : -1;
1537#endif
1538
1539 REQ_SEND;
1540}
1541
1542void
1579aio_busy (delay,callback=&PL_sv_undef) 1543aio_busy (double delay, SV *callback=&PL_sv_undef)
1580 double delay
1581 SV * callback
1582 PPCODE: 1544 PPCODE:
1583{ 1545{
1584 dREQ; 1546 dREQ;
1585 1547
1586 req->type = REQ_BUSY; 1548 req->type = EIO_BUSY;
1587 req->int1 = delay < 0. ? 0 : delay; 1549 req->nv1 = delay < 0. ? 0. : delay;
1588 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1589 1550
1590 REQ_SEND; 1551 REQ_SEND;
1591} 1552}
1592 1553
1593void 1554void
1594aio_group (callback=&PL_sv_undef) 1555aio_group (SV *callback=&PL_sv_undef)
1595 SV * callback
1596 PROTOTYPE: ;$
1597 PPCODE: 1556 PPCODE:
1598{ 1557{
1599 dREQ; 1558 dREQ;
1600 1559
1601 req->type = REQ_GROUP; 1560 req->type = EIO_GROUP;
1602 1561
1603 req_send (req); 1562 req_submit (req);
1604 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1563 XPUSHs (req_sv (req, aio_grp_stash));
1605} 1564}
1606 1565
1607void 1566void
1608aio_nop (callback=&PL_sv_undef) 1567aio_nop (SV *callback=&PL_sv_undef)
1609 SV * callback 1568 ALIAS:
1569 aio_nop = EIO_NOP
1570 aio_sync = EIO_SYNC
1610 PPCODE: 1571 PPCODE:
1611{ 1572{
1612 dREQ; 1573 dREQ;
1613 1574
1614 req->type = REQ_NOP; 1575 req->type = ix;
1615 1576
1616 REQ_SEND; 1577 REQ_SEND;
1617} 1578}
1618 1579
1619int 1580int
1620aioreq_pri (int pri = 0) 1581aioreq_pri (int pri = 0)
1621 PROTOTYPE: ;$
1622 CODE: 1582 CODE:
1623 RETVAL = next_pri - PRI_BIAS; 1583 RETVAL = next_pri;
1624 if (items > 0) 1584 if (items > 0)
1625 { 1585 {
1626 if (pri < PRI_MIN) pri = PRI_MIN; 1586 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1627 if (pri > PRI_MAX) pri = PRI_MAX; 1587 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1628 next_pri = pri + PRI_BIAS; 1588 next_pri = pri;
1629 } 1589 }
1630 OUTPUT: 1590 OUTPUT:
1631 RETVAL 1591 RETVAL
1632 1592
1633void 1593void
1634aioreq_nice (int nice = 0) 1594aioreq_nice (int nice = 0)
1635 CODE: 1595 CODE:
1636 nice = next_pri - nice; 1596 nice = next_pri - nice;
1637 if (nice < PRI_MIN) nice = PRI_MIN; 1597 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1638 if (nice > PRI_MAX) nice = PRI_MAX; 1598 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1639 next_pri = nice + PRI_BIAS; 1599 next_pri = nice;
1640 1600
1641void 1601void
1642flush () 1602flush ()
1643 PROTOTYPE:
1644 CODE: 1603 CODE:
1645 while (nreqs) 1604 while (eio_nreqs ())
1646 { 1605 {
1647 poll_wait (); 1606 poll_wait ();
1648 poll_cb (); 1607 poll_cb ();
1649 } 1608 }
1650 1609
1651int 1610int
1652poll() 1611poll ()
1653 PROTOTYPE:
1654 CODE: 1612 CODE:
1655 poll_wait (); 1613 poll_wait ();
1656 RETVAL = poll_cb (); 1614 RETVAL = poll_cb ();
1657 OUTPUT: 1615 OUTPUT:
1658 RETVAL 1616 RETVAL
1659 1617
1660int 1618int
1661poll_fileno() 1619poll_fileno ()
1662 PROTOTYPE:
1663 CODE: 1620 CODE:
1664 RETVAL = respipe [0]; 1621 RETVAL = s_epipe_fd (&respipe);
1665 OUTPUT: 1622 OUTPUT:
1666 RETVAL 1623 RETVAL
1667 1624
1668int 1625int
1669poll_cb(...) 1626poll_cb (...)
1670 PROTOTYPE: 1627 PROTOTYPE:
1671 CODE: 1628 CODE:
1672 RETVAL = poll_cb (); 1629 RETVAL = poll_cb ();
1673 OUTPUT: 1630 OUTPUT:
1674 RETVAL 1631 RETVAL
1675 1632
1676void 1633void
1677poll_wait() 1634poll_wait ()
1678 PROTOTYPE:
1679 CODE: 1635 CODE:
1680 poll_wait (); 1636 poll_wait ();
1681 1637
1682int 1638int
1683nreqs() 1639nreqs ()
1684 PROTOTYPE:
1685 CODE: 1640 CODE:
1686 RETVAL = nreqs; 1641 RETVAL = eio_nreqs ();
1687 OUTPUT: 1642 OUTPUT:
1688 RETVAL 1643 RETVAL
1689 1644
1690int 1645int
1691nready() 1646nready ()
1692 PROTOTYPE:
1693 CODE: 1647 CODE:
1694 RETVAL = get_nready (); 1648 RETVAL = eio_nready ();
1695 OUTPUT: 1649 OUTPUT:
1696 RETVAL 1650 RETVAL
1697 1651
1698int 1652int
1699npending() 1653npending ()
1700 PROTOTYPE:
1701 CODE: 1654 CODE:
1702 RETVAL = get_npending (); 1655 RETVAL = eio_npending ();
1703 OUTPUT: 1656 OUTPUT:
1704 RETVAL 1657 RETVAL
1705 1658
1706int 1659int
1707nthreads() 1660nthreads ()
1708 PROTOTYPE:
1709 CODE: 1661 CODE:
1710 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1662 RETVAL = eio_nthreads ();
1711 RETVAL = started;
1712 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1713 OUTPUT: 1663 OUTPUT:
1714 RETVAL 1664 RETVAL
1715 1665
1666int
1667fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1668 CODE:
1669 RETVAL = posix_fadvise (fh, offset, length, advice);
1670 OUTPUT:
1671 RETVAL
1672
1673IV
1674sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1675 CODE:
1676 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1677 OUTPUT:
1678 RETVAL
1679
1680void
1681mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1682 PPCODE:
1683 sv_unmagic (scalar, MMAP_MAGIC);
1684{
1685 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1686 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1687 if (addr == (void *)-1)
1688 XSRETURN_NO;
1689
1690 sv_force_normal (scalar);
1691
1692 /* we store the length in mg_obj, as namlen is I32 :/ */
1693 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1694 ->mg_obj = (SV *)length;
1695
1696 SvUPGRADE (scalar, SVt_PV); /* nop... */
1697
1698 if (!(prot & PROT_WRITE))
1699 SvREADONLY_on (scalar);
1700
1701 if (SvLEN (scalar))
1702 Safefree (SvPVX (scalar));
1703
1704 SvPVX (scalar) = (char *)addr;
1705 SvCUR_set (scalar, length);
1706 SvLEN_set (scalar, 0);
1707 SvPOK_only (scalar);
1708
1709 XSRETURN_YES;
1710}
1711
1712void
1713munmap (SV *scalar)
1714 CODE:
1715 sv_unmagic (scalar, MMAP_MAGIC);
1716
1717int
1718madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1719 ALIAS:
1720 mprotect = 1
1721 CODE:
1722{
1723 STRLEN svlen;
1724 void *addr = SvPVbyte (scalar, svlen);
1725 size_t len = SvUV (length);
1726
1727 if (offset < 0)
1728 offset += svlen;
1729
1730 if (offset < 0 || offset > svlen)
1731 croak ("offset outside of scalar");
1732
1733 if (!SvOK (length) || len + offset > svlen)
1734 len = svlen - offset;
1735
1736 addr = (void *)(((intptr_t)addr) + offset);
1737 eio_page_align (&addr, &len);
1738
1739 switch (ix)
1740 {
1741 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1742 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1743 }
1744}
1745 OUTPUT:
1746 RETVAL
1747
1748int
1749munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1750 CODE:
1751{
1752 STRLEN svlen;
1753 void *addr = SvPVbyte (scalar, svlen);
1754 size_t len = SvUV (length);
1755
1756 if (offset < 0)
1757 offset += svlen;
1758
1759 if (offset < 0 || offset > svlen)
1760 croak ("offset outside of scalar");
1761
1762 if (!SvOK (length) || len + offset > svlen)
1763 len = svlen - offset;
1764
1765 addr = (void *)(((intptr_t)addr) + offset);
1766 eio_page_align (&addr, &len);
1767#if _POSIX_MEMLOCK_RANGE
1768 RETVAL = munlock (addr, len);
1769#else
1770 RETVAL = ((errno = ENOSYS), -1);
1771#endif
1772}
1773 OUTPUT:
1774 RETVAL
1775
1776int
1777munlockall ()
1778 CODE:
1779#if _POSIX_MEMLOCK
1780 munlockall ();
1781#else
1782 RETVAL = -1;
1783 errno = ENOSYS;
1784#endif
1785 OUTPUT:
1786 RETVAL
1787
1788void _on_next_submit (SV *cb)
1789 CODE:
1790 SvREFCNT_dec (on_next_submit);
1791 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1792
1716PROTOTYPES: DISABLE 1793PROTOTYPES: DISABLE
1794
1795MODULE = IO::AIO PACKAGE = IO::AIO::WD
1796
1797BOOT:
1798{
1799 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1800 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1801}
1802
1803void
1804DESTROY (SV *self)
1805 CODE:
1806{
1807 aio_wd wd = SvAIO_WD (self);
1808#if HAVE_AT
1809 {
1810 SV *callback = &PL_sv_undef;
1811 dREQ; /* clobbers next_pri :/ */
1812 next_pri = req->pri; /* restore next_pri */
1813 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1814 req->type = EIO_WD_CLOSE;
1815 req->wd = wd;
1816 REQ_SEND;
1817 }
1818#else
1819 eio_wd_close_sync (wd);
1820#endif
1821}
1717 1822
1718MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1823MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1719 1824
1720void 1825void
1721cancel (aio_req_ornot req) 1826cancel (aio_req_ornot req)
1722 CODE: 1827 CODE:
1723 req_cancel (req); 1828 eio_cancel (req);
1724 1829
1725void 1830void
1726cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1831cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1727 CODE: 1832 PPCODE:
1833{
1834 if (GIMME_V != G_VOID)
1835 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1836
1837 if (items > 1)
1838 {
1839 SV *cb_cv =get_cb (callback);
1840
1728 SvREFCNT_dec (req->callback); 1841 SvREFCNT_dec (req->callback);
1729 req->callback = newSVsv (callback); 1842 req->callback = SvREFCNT_inc (cb_cv);
1843 }
1844}
1730 1845
1731MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1846MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1732 1847
1733void 1848void
1734add (aio_req grp, ...) 1849add (aio_req grp, ...)
1735 PPCODE: 1850 PPCODE:
1736{ 1851{
1737 int i; 1852 int i;
1738 aio_req req;
1739 1853
1740 if (grp->int1 == 2) 1854 if (grp->int1 == 2)
1741 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1855 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1742 1856
1743 for (i = 1; i < items; ++i ) 1857 for (i = 1; i < items; ++i )
1744 { 1858 {
1859 aio_req req;
1860
1745 if (GIMME_V != G_VOID) 1861 if (GIMME_V != G_VOID)
1746 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1862 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1747 1863
1748 req = SvAIO_REQ (ST (i)); 1864 req = SvAIO_REQ (ST (i));
1749 1865
1750 if (req) 1866 if (req)
1751 { 1867 eio_grp_add (grp, req);
1752 ++grp->size;
1753 req->grp = grp;
1754
1755 req->grp_prev = 0;
1756 req->grp_next = grp->grp_first;
1757
1758 if (grp->grp_first)
1759 grp->grp_first->grp_prev = req;
1760
1761 grp->grp_first = req;
1762 }
1763 } 1868 }
1764} 1869}
1765 1870
1766void 1871void
1767cancel_subs (aio_req_ornot req) 1872cancel_subs (aio_req_ornot req)
… …
1776 AV *av; 1881 AV *av;
1777 1882
1778 grp->errorno = errno; 1883 grp->errorno = errno;
1779 1884
1780 av = newAV (); 1885 av = newAV ();
1886 av_extend (av, items - 1);
1781 1887
1782 for (i = 1; i < items; ++i ) 1888 for (i = 1; i < items; ++i )
1783 av_push (av, newSVsv (ST (i))); 1889 av_push (av, newSVsv (ST (i)));
1784 1890
1785 SvREFCNT_dec (grp->sv1); 1891 SvREFCNT_dec (grp->sv1);
… …
1792 grp->errorno = errorno; 1898 grp->errorno = errorno;
1793 1899
1794void 1900void
1795limit (aio_req grp, int limit) 1901limit (aio_req grp, int limit)
1796 CODE: 1902 CODE:
1797 grp->int2 = limit; 1903 eio_grp_limit (grp, limit);
1798 aio_grp_feed (grp);
1799 1904
1800void 1905void
1801feed (aio_req grp, SV *callback=&PL_sv_undef) 1906feed (aio_req grp, SV *callback=&PL_sv_undef)
1802 CODE: 1907 CODE:
1803{ 1908{
1804 SvREFCNT_dec (grp->sv2); 1909 SvREFCNT_dec (grp->sv2);
1805 grp->sv2 = newSVsv (callback); 1910 grp->sv2 = newSVsv (callback);
1911 grp->feed = aio_grp_feed;
1806 1912
1807 if (grp->int2 <= 0) 1913 if (grp->int2 <= 0)
1808 grp->int2 = 2; 1914 grp->int2 = 2;
1809 1915
1810 aio_grp_feed (grp); 1916 eio_grp_limit (grp, grp->int2);
1811} 1917}
1812 1918

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