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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.94 by root, Sun Nov 26 18:28:37 2006 UTC vs.
Revision 1.208 by root, Sat Jan 7 18:42:43 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>
22#include <stdlib.h> 12#include <stdlib.h>
23#include <errno.h> 13#include <errno.h>
24#include <sys/time.h>
25#include <sys/select.h>
26#include <sys/types.h> 14#include <sys/types.h>
27#include <sys/stat.h> 15#include <sys/stat.h>
28#include <limits.h> 16#include <limits.h>
29#include <unistd.h>
30#include <fcntl.h> 17#include <fcntl.h>
31#include <signal.h>
32#include <sched.h> 18#include <sched.h>
33 19
34#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
35# if __linux
36# include <sys/sendfile.h>
37# elif __freebsd
38# include <sys/socket.h>
39# include <sys/uio.h> 21# include <sys/mman.h>
40# elif __hpux 22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
67 #define EIO_STRUCT_STAT struct _stati64
68 #define EIO_STRUCT_STATI64
69
70#else
71
41# include <sys/socket.h> 72 #include <sys/time.h>
42# elif __solaris /* not yet */
43# include <sys/sendfile.h> 73 #include <sys/select.h>
74 #include <unistd.h>
75 #include <utime.h>
76 #include <signal.h>
77
78 #define EIO_STRUCT_STAT Stat_t
79
80#endif
81
82/* use NV for 32 bit perls as it allows larger offsets */
83#if IVSIZE >= 8
84# define VAL64 IV
85# define SvVAL64 SvIV
86# define newSVval64 newSViv
87#else
88# define VAL64 NV
89# define SvVAL64 SvNV
90# define newSVval64 newSVnv
91#endif
92
93/*****************************************************************************/
94
95#if __GNUC__ >= 3
96# define expect(expr,value) __builtin_expect ((expr),(value))
97#else
98# define expect(expr,value) (expr)
99#endif
100
101#define expect_false(expr) expect ((expr) != 0, 0)
102#define expect_true(expr) expect ((expr) != 0, 1)
103
104/*****************************************************************************/
105
106typedef SV SV8; /* byte-sv, used for argument-checking */
107typedef int aio_rfd; /* read file desriptor */
108typedef int aio_wfd; /* write file descriptor */
109
110static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
111
112#define EIO_REQ_MEMBERS \
113 SV *callback; \
114 SV *sv1, *sv2; \
115 SV *sv3, *sv4; \
116 STRLEN stroffset; \
117 SV *self;
118
119#define EIO_NO_WRAPPERS 1
120
121#include "libeio/config.h"
122#include "libeio/eio.h"
123
124static int req_invoke (eio_req *req);
125#define EIO_FINISH(req) req_invoke (req)
126static void req_destroy (eio_req *grp);
127#define EIO_DESTROY(req) req_destroy (req)
128
129#include "libeio/eio.c"
130
131/* Linux/others */
132#ifndef O_ASYNC
133# define O_ASYNC 0
134#endif
135#ifndef O_DIRECT
136# define O_DIRECT 0
137#endif
138#ifndef O_NOATIME
139# define O_NOATIME 0
140#endif
141
142/* POSIX */
143#ifndef O_CLOEXEC
144# define O_CLOEXEC 0
145#endif
146#ifndef O_NOFOLLOW
147# define O_NOFOLLOW 0
148#endif
149#ifndef O_NOCTTY
150# define O_NOCTTY 0
151#endif
152#ifndef O_NONBLOCK
153# define O_NONBLOCK 0
154#endif
155#ifndef O_EXEC
156# define O_EXEC 0
157#endif
158#ifndef O_SEARCH
159# define O_SEARCH 0
160#endif
161#ifndef O_DIRECTORY
162# define O_DIRECTORY 0
163#endif
164#ifndef O_DSYNC
165# define O_DSYNC 0
166#endif
167#ifndef O_RSYNC
168# define O_RSYNC 0
169#endif
170#ifndef O_SYNC
171# define O_SYNC 0
172#endif
173#ifndef O_TTY_INIT
174# define O_TTY_INIT 0
175#endif
176
177#ifndef POSIX_FADV_NORMAL
178# define POSIX_FADV_NORMAL 0
179#endif
180#ifndef POSIX_FADV_SEQUENTIAL
181# define POSIX_FADV_SEQUENTIAL 0
182#endif
183#ifndef POSIX_FADV_RANDOM
184# define POSIX_FADV_RANDOM 0
185#endif
186#ifndef POSIX_FADV_NOREUSE
187# define POSIX_FADV_NOREUSE 0
188#endif
189#ifndef POSIX_FADV_WILLNEED
190# define POSIX_FADV_WILLNEED 0
191#endif
192#ifndef POSIX_FADV_DONTNEED
193# define POSIX_FADV_DONTNEED 0
194#endif
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#ifndef POSIX_MADV_NORMAL
201# define POSIX_MADV_NORMAL 0
202#endif
203#ifndef POSIX_MADV_SEQUENTIAL
204# define POSIX_MADV_SEQUENTIAL 0
205#endif
206#ifndef POSIX_MADV_RANDOM
207# define POSIX_MADV_RANDOM 0
208#endif
209#ifndef POSIX_MADV_WILLNEED
210# define POSIX_MADV_WILLNEED 0
211#endif
212#ifndef POSIX_MADV_DONTNEED
213# define POSIX_MADV_DONTNEED 0
214#endif
215
216#if !HAVE_POSIX_MADVISE
217# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218#endif
219
220#ifndef PROT_NONE
221# define PROT_NONE 0
222#endif
223#ifndef PROT_READ
224# define PROT_READ 0
225#endif
226#ifndef PROT_WRITE
227# define PROT_READ 0
228#endif
229#ifndef PROT_EXEC
230# define PROT_EXEC 0
231#endif
232
233#ifndef ST_RDONLY
234# define ST_RDONLY 0
235#endif
236#ifndef ST_NOSUID
237# define ST_NOSUID 0
238#endif
239#ifndef ST_NODEV
240# define ST_NODEV 0
241#endif
242#ifndef ST_NOEXEC
243# define ST_NOEXEC 0
244#endif
245#ifndef ST_SYNCHRONOUS
246# define ST_SYNCHRONOUS 0
247#endif
248#ifndef ST_MANDLOCK
249# define ST_MANDLOCK 0
250#endif
251#ifndef ST_WRITE
252# define ST_WRITE 0
253#endif
254#ifndef ST_APPEND
255# define ST_APPEND 0
256#endif
257#ifndef ST_IMMUTABLE
258# define ST_IMMUTABLE 0
259#endif
260#ifndef ST_NOATIME
261# define ST_NOATIME 0
262#endif
263#ifndef ST_NODIRATIME
264# define ST_NODIRATIME 0
265#endif
266#ifndef ST_RELATIME
267# define ST_RELATIME 0
268#endif
269
270#ifndef S_IFIFO
271# define S_IFIFO 0
272#endif
273#ifndef S_IFCHR
274# define S_IFCHR 0
275#endif
276#ifndef S_IFBLK
277# define S_IFBLK 0
278#endif
279#ifndef S_IFLNK
280# define S_IFLNK 0
281#endif
282#ifndef S_IFREG
283# define S_IFREG 0
284#endif
285#ifndef S_IFDIR
286# define S_IFDIR 0
287#endif
288#ifndef S_IFWHT
289# define S_IFWHT 0
290#endif
291#ifndef S_IFSOCK
292# define S_IFSOCK 0
293#endif
294
295#ifndef MAP_ANONYMOUS
296# ifdef MAP_ANON
297# define MAP_ANONYMOUS MAP_ANON
44# else 298# else
45# error sendfile support requested but not available 299# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
46# endif 300# endif
47#endif 301#endif
48 302#ifndef MAP_HUGETLB
49/* number of seconds after which idle threads exit */ 303# define MAP_HUGETLB 0
50#define IDLE_TIMEOUT 10
51
52/* used for struct dirent, AIX doesn't provide it */
53#ifndef NAME_MAX
54# define NAME_MAX 4096
55#endif
56
57#ifndef PTHREAD_STACK_MIN
58/* care for broken platforms, e.g. windows */
59# define PTHREAD_STACK_MIN 16384
60#endif
61
62#if __ia64
63# define STACKSIZE 65536
64#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
65# define STACKSIZE PTHREAD_STACK_MIN
66#else
67# define STACKSIZE 16384
68#endif
69
70/* wether word reads are potentially non-atomic.
71 * this is conservatice, likely most arches this runs
72 * on have atomic word read/writes.
73 */
74#ifndef WORDACCESS_UNSAFE
75# if __i386 || __x86_64
76# define WORDACCESS_UNSAFE 0
77# else
78# define WORDACCESS_UNSAFE 1
79# endif 304#endif
305#ifndef MAP_LOCKED
306# define MAP_LOCKED 0
80#endif 307#endif
308#ifndef MAP_NORESERVE
309# define MAP_NORESERVE 0
310#endif
311#ifndef MAP_POPULATE
312# define MAP_POPULATE 0
313#endif
314#ifndef MAP_NONBLOCK
315# define MAP_NONBLOCK 0
316#endif
81 317
82/* buffer size for various temporary buffers */ 318#ifndef makedev
83#define AIO_BUFSIZE 65536 319# define makedev(maj,min) (((maj) << 8) | (min))
320#endif
321#ifndef major
322# define major(dev) ((dev) >> 8)
323#endif
324#ifndef minor
325# define minor(dev) ((dev) & 0xff)
326#endif
84 327
85#define dBUF \ 328#ifndef PAGESIZE
86 char *aio_buf; \ 329# define PAGESIZE sysconf (_SC_PAGESIZE)
87 LOCK (wrklock); \ 330#endif
88 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
89 UNLOCK (wrklock); \
90 if (!aio_buf) \
91 return -1;
92
93typedef SV SV8; /* byte-sv, used for argument-checking */
94 331
95enum { 332enum {
96 REQ_QUIT, 333 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
97 REQ_OPEN, REQ_CLOSE,
98 REQ_READ, REQ_WRITE, REQ_READAHEAD,
99 REQ_SENDFILE,
100 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
101 REQ_FSYNC, REQ_FDATASYNC,
102 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
103 REQ_MKNOD, REQ_READDIR,
104 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
105 REQ_GROUP, REQ_NOP,
106 REQ_BUSY,
107}; 334};
108 335
109#define AIO_REQ_KLASS "IO::AIO::REQ"
110#define AIO_GRP_KLASS "IO::AIO::GRP"
111
112typedef struct aio_cb
113{
114 struct aio_cb *volatile next;
115
116 SV *callback, *fh;
117 SV *sv1, *sv2;
118 void *ptr1, *ptr2;
119 off_t offs;
120 size_t size;
121 ssize_t result;
122
123 STRLEN stroffset;
124 int type;
125 int int1, int2;
126 int errorno;
127 mode_t mode; /* open */
128
129 unsigned char flags;
130 unsigned char pri;
131
132 SV *self; /* the perl counterpart of this request, if any */
133 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
134} aio_cb;
135
136enum {
137 FLAG_CANCELLED = 0x01, /* request was cancelled */
138 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
139 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
140};
141
142typedef aio_cb *aio_req; 336typedef eio_req *aio_req;
143typedef aio_cb *aio_req_ornot; 337typedef eio_req *aio_req_ornot;
338typedef eio_wd aio_wd;
144 339
145enum { 340static SV *on_next_submit;
146 PRI_MIN = -4, 341static int next_pri = EIO_PRI_DEFAULT;
147 PRI_MAX = 4, 342static int max_outstanding;
148 343
149 DEFAULT_PRI = 0, 344static s_epipe respipe;
150 PRI_BIAS = -PRI_MIN,
151 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
152};
153 345
154#define AIO_TICKS ((1000000 + 1023) >> 10)
155
156static unsigned int max_poll_time = 0;
157static unsigned int max_poll_reqs = 0;
158
159/* calculcate time difference in ~1/AIO_TICKS of a second */
160static int tvdiff (struct timeval *tv1, struct timeval *tv2)
161{
162 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
163 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
164}
165
166static pthread_t main_tid;
167static int main_sig;
168static int block_sig_level;
169
170void block_sig ()
171{
172 sigset_t ss;
173
174 if (block_sig_level++)
175 return;
176
177 if (!main_sig)
178 return;
179
180 sigemptyset (&ss);
181 sigaddset (&ss, main_sig);
182 pthread_sigmask (SIG_BLOCK, &ss, 0);
183}
184
185void unblock_sig ()
186{
187 sigset_t ss;
188
189 if (--block_sig_level)
190 return;
191
192 if (!main_sig)
193 return;
194
195 sigemptyset (&ss);
196 sigaddset (&ss, main_sig);
197 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
198}
199
200static int next_pri = DEFAULT_PRI + PRI_BIAS;
201
202static unsigned int started, idle, wanted;
203
204#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
205# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
206#else
207# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
208#endif
209
210#define LOCK(mutex) pthread_mutex_lock (&(mutex))
211#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
212
213/* worker threads management */
214static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
215
216typedef struct worker {
217 /* locked by wrklock */
218 struct worker *prev, *next;
219
220 pthread_t tid;
221
222 /* locked by reslock, reqlock or wrklock */
223 aio_req req; /* currently processed request */
224 void *dbuf;
225 DIR *dirp;
226} worker;
227
228static worker wrk_first = { &wrk_first, &wrk_first, 0 };
229
230static void worker_clear (worker *wrk)
231{
232 if (wrk->dirp)
233 {
234 closedir (wrk->dirp);
235 wrk->dirp = 0;
236 }
237
238 if (wrk->dbuf)
239 {
240 free (wrk->dbuf);
241 wrk->dbuf = 0;
242 }
243}
244
245static void worker_free (worker *wrk)
246{
247 wrk->next->prev = wrk->prev;
248 wrk->prev->next = wrk->next;
249
250 free (wrk);
251}
252
253static volatile unsigned int nreqs, nready, npending;
254static volatile unsigned int max_idle = 4;
255static volatile unsigned int max_outstanding = 0xffffffff;
256static int respipe [2];
257
258static pthread_mutex_t reslock = AIO_MUTEX_INIT;
259static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
260static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
261
262#if WORDACCESS_UNSAFE
263
264static unsigned int get_nready ()
265{
266 unsigned int retval;
267
268 LOCK (reqlock);
269 retval = nready;
270 UNLOCK (reqlock);
271
272 return retval;
273}
274
275static unsigned int get_npending ()
276{
277 unsigned int retval;
278
279 LOCK (reslock);
280 retval = npending;
281 UNLOCK (reslock);
282
283 return retval;
284}
285
286static unsigned int get_nthreads ()
287{
288 unsigned int retval;
289
290 LOCK (wrklock);
291 retval = started;
292 UNLOCK (wrklock);
293
294 return retval;
295}
296
297#else
298
299# define get_nready() nready
300# define get_npending() npending
301# define get_nthreads() started
302
303#endif
304
305/*
306 * a somewhat faster data structure might be nice, but
307 * with 8 priorities this actually needs <20 insns
308 * per shift, the most expensive operation.
309 */
310typedef struct {
311 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
312 int size;
313} reqq;
314
315static reqq req_queue;
316static reqq res_queue;
317
318int reqq_push (reqq *q, aio_req req)
319{
320 int pri = req->pri;
321 req->next = 0;
322
323 if (q->qe[pri])
324 {
325 q->qe[pri]->next = req;
326 q->qe[pri] = req;
327 }
328 else
329 q->qe[pri] = q->qs[pri] = req;
330
331 return q->size++;
332}
333
334aio_req reqq_shift (reqq *q)
335{
336 int pri;
337
338 if (!q->size)
339 return 0;
340
341 --q->size;
342
343 for (pri = NUM_PRI; pri--; )
344 {
345 aio_req req = q->qs[pri];
346
347 if (req)
348 {
349 if (!(q->qs[pri] = req->next))
350 q->qe[pri] = 0;
351
352 return req;
353 }
354 }
355
356 abort ();
357}
358
359static int poll_cb ();
360static int req_invoke (aio_req req);
361static void req_free (aio_req req); 346static void req_destroy (aio_req req);
362static void req_cancel (aio_req req); 347static void req_cancel (aio_req req);
363 348
349static void
350want_poll (void)
351{
352 /* write a dummy byte to the pipe so fh becomes ready */
353 s_epipe_signal (&respipe);
354}
355
356static void
357done_poll (void)
358{
359 /* read any signals sent by the worker threads */
360 s_epipe_drain (&respipe);
361}
362
364/* must be called at most once */ 363/* must be called at most once */
365static SV *req_sv (aio_req req, const char *klass) 364static SV *
365req_sv (aio_req req, HV *stash)
366{ 366{
367 if (!req->self) 367 if (!req->self)
368 { 368 {
369 req->self = (SV *)newHV (); 369 req->self = (SV *)newHV ();
370 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 370 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
371 } 371 }
372 372
373 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 373 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
374} 374}
375 375
376static aio_req SvAIO_REQ (SV *sv) 376static SV *
377newSVaio_wd (aio_wd wd)
378{
379 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
380}
381
382static aio_req
383SvAIO_REQ (SV *sv)
377{ 384{
378 MAGIC *mg; 385 MAGIC *mg;
379 386
380 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 387 if (!SvROK (sv)
388 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
389 || (SvSTASH (SvRV (sv)) != aio_grp_stash
390 && SvSTASH (SvRV (sv)) != aio_req_stash
391 && !sv_derived_from (sv, "IO::AIO::REQ")))
381 croak ("object of class " AIO_REQ_KLASS " expected"); 392 croak ("object of class IO::AIO::REQ expected");
382 393
383 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
384 395
385 return mg ? (aio_req)mg->mg_ptr : 0; 396 return mg ? (aio_req)mg->mg_ptr : 0;
386} 397}
387 398
399static aio_wd
400SvAIO_WD (SV *sv)
401{
402 if (!SvROK (sv)
403 || SvTYPE (SvRV (sv)) != SVt_PVMG
404 || SvSTASH (SvRV (sv)) != aio_wd_stash)
405 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406
407 return (aio_wd)(long)SvIVX (SvRV (sv));
408}
409
410static void
388static void aio_grp_feed (aio_req grp) 411aio_grp_feed (aio_req grp)
389{ 412{
390 block_sig (); 413 if (grp->sv2 && SvOK (grp->sv2))
391
392 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
393 { 414 {
394 int old_len = grp->size;
395
396 if (grp->sv2 && SvOK (grp->sv2))
397 {
398 dSP; 415 dSP;
399 416
400 ENTER; 417 ENTER;
401 SAVETMPS; 418 SAVETMPS;
402 PUSHMARK (SP); 419 PUSHMARK (SP);
403 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 420 XPUSHs (req_sv (grp, aio_grp_stash));
404 PUTBACK; 421 PUTBACK;
405 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 422 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
406 SPAGAIN; 423 SPAGAIN;
407 FREETMPS; 424 FREETMPS;
408 LEAVE; 425 LEAVE;
409 }
410
411 /* stop if no progress has been made */
412 if (old_len == grp->size)
413 {
414 SvREFCNT_dec (grp->sv2);
415 grp->sv2 = 0;
416 break;
417 }
418 } 426 }
419
420 unblock_sig ();
421} 427}
422 428
423static void aio_grp_dec (aio_req grp) 429static void
430req_submit (eio_req *req)
424{ 431{
425 --grp->size; 432 eio_submit (req);
426 433
427 /* call feeder, if applicable */ 434 if (expect_false (on_next_submit))
428 aio_grp_feed (grp);
429
430 /* finish, if done */
431 if (!grp->size && grp->int1)
432 { 435 {
433 block_sig (); 436 dSP;
437 SV *cb = sv_2mortal (on_next_submit);
434 438
435 if (!req_invoke (grp)) 439 on_next_submit = 0;
436 {
437 req_free (grp);
438 unblock_sig ();
439 croak (0);
440 }
441 440
442 req_free (grp); 441 PUSHMARK (SP);
443 unblock_sig (); 442 PUTBACK;
443 call_sv (cb, G_DISCARD | G_EVAL);
444 } 444 }
445} 445}
446 446
447static int
447static int req_invoke (aio_req req) 448req_invoke (eio_req *req)
448{ 449{
449 dSP;
450
451 if (req->flags & FLAG_SV1_RO_OFF) 450 if (req->flags & FLAG_SV2_RO_OFF)
452 SvREADONLY_off (req->sv1); 451 SvREADONLY_off (req->sv2);
453 452
454 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 453 if (!EIO_CANCELLED (req) && req->callback)
455 { 454 {
455 dSP;
456 static SV *sv_result_cache; /* caches the result integer SV */
457 SV *sv_result;
458
456 ENTER; 459 ENTER;
457 SAVETMPS; 460 SAVETMPS;
458 PUSHMARK (SP); 461 PUSHMARK (SP);
459 EXTEND (SP, 1); 462 EXTEND (SP, 1);
460 463
464 /* do not recreate the result IV from scratch each time */
465 if (expect_true (sv_result_cache))
466 {
467 sv_result = sv_result_cache; sv_result_cache = 0;
468 SvIV_set (sv_result, req->result);
469 SvIOK_only (sv_result);
470 }
471 else
472 {
473 sv_result = newSViv (req->result);
474 SvREADONLY_on (sv_result);
475 }
476
461 switch (req->type) 477 switch (req->type)
462 { 478 {
479 case EIO_WD_OPEN:
480 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
481 break;
482
463 case REQ_READDIR: 483 case EIO_READDIR:
464 { 484 {
465 SV *rv = &PL_sv_undef; 485 SV *rv = &PL_sv_undef;
466 486
467 if (req->result >= 0) 487 if (req->result >= 0)
468 { 488 {
469 int i; 489 int i;
470 char *buf = req->ptr2; 490 char *names = (char *)req->ptr2;
491 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
471 AV *av = newAV (); 492 AV *av = newAV ();
472 493
473 av_extend (av, req->result - 1); 494 av_extend (av, req->result - 1);
474 495
475 for (i = 0; i < req->result; ++i) 496 for (i = 0; i < req->result; ++i)
476 { 497 {
477 SV *sv = newSVpv (buf, 0); 498 if (req->int1 & EIO_READDIR_DENTS)
499 {
500 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
478 501
502 if (req->int1 & EIO_READDIR_CUSTOM2)
503 {
504 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
505 AV *avent = newAV ();
506
507 av_extend (avent, 2);
508
509 if (!sv_type [ent->type])
510 {
511 sv_type [ent->type] = newSViv (ent->type);
512 SvREADONLY_on (sv_type [ent->type]);
513 }
514
515 av_store (avent, 0, namesv);
516 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
517 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
518
519 av_store (av, i, newRV_noinc ((SV *)avent));
520 }
521 else
479 av_store (av, i, sv); 522 av_store (av, i, namesv);
523
524 ++ent;
525 }
526 else
527 {
528 SV *name = newSVpv (names, 0);
529 av_store (av, i, name);
480 buf += SvCUR (sv) + 1; 530 names += SvCUR (name) + 1;
531 }
481 } 532 }
482 533
483 rv = sv_2mortal (newRV_noinc ((SV *)av)); 534 rv = sv_2mortal (newRV_noinc ((SV *)av));
484 } 535 }
485 536
486 PUSHs (rv); 537 PUSHs (rv);
538
539 if (req->int1 & EIO_READDIR_CUSTOM1)
540 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
487 } 541 }
488 break; 542 break;
489 543
490 case REQ_OPEN: 544 case EIO_OPEN:
491 { 545 {
492 /* convert fd to fh */ 546 /* convert fd to fh */
493 SV *fh; 547 SV *fh = &PL_sv_undef;
494 548
495 PUSHs (sv_2mortal (newSViv (req->result))); 549 if (req->result >= 0)
496 PUTBACK; 550 {
497 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 551 GV *gv = (GV *)sv_newmortal ();
498 SPAGAIN; 552 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
553 char sym [64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
557 gv_init (gv, aio_stash, sym, symlen, 0);
499 558
500 fh = POPs; 559 symlen = snprintf (
501 PUSHMARK (SP); 560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 (int)req->result
565 );
566
567 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
568 fh = (SV *)gv;
569 }
570
502 XPUSHs (fh); 571 PUSHs (fh);
503 } 572 }
504 break; 573 break;
505 574
575 case EIO_STATVFS:
576 case EIO_FSTATVFS:
577 {
578 SV *rv = &PL_sv_undef;
579
580#ifndef _WIN32
581 if (req->result >= 0)
582 {
583 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584 HV *hv = newHV ();
585
586 rv = sv_2mortal (newRV_noinc ((SV *)hv));
587
588 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
589 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
590 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
591 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
592 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
593 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
594 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
595 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
596 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
597 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
598 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599 }
600#endif
601
602 PUSHs (rv);
603 }
604
605 break;
606
506 case REQ_GROUP: 607 case EIO_GROUP:
507 req->int1 = 2; /* mark group as finished */ 608 req->int1 = 2; /* mark group as finished */
508 609
509 if (req->sv1) 610 if (req->sv1)
510 { 611 {
511 int i; 612 int i;
… …
515 for (i = 0; i <= AvFILL (av); ++i) 616 for (i = 0; i <= AvFILL (av); ++i)
516 PUSHs (*av_fetch (av, i, 0)); 617 PUSHs (*av_fetch (av, i, 0));
517 } 618 }
518 break; 619 break;
519 620
520 case REQ_NOP: 621 case EIO_NOP:
521 case REQ_BUSY: 622 case EIO_BUSY:
522 break; 623 break;
523 624
524 case REQ_READLINK: 625 case EIO_READLINK:
626 case EIO_REALPATH:
525 if (req->result > 0) 627 if (req->result > 0)
526 { 628 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
527 SvCUR_set (req->sv1, req->result);
528 *SvEND (req->sv1) = 0;
529 PUSHs (req->sv1);
530 }
531 break; 629 break;
532 630
533 case REQ_STAT: 631 case EIO_STAT:
534 case REQ_LSTAT: 632 case EIO_LSTAT:
535 case REQ_FSTAT: 633 case EIO_FSTAT:
536 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 634 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
635
537 PL_laststatval = req->result; 636 if (!(PL_laststatval = req->result))
637 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
538 PL_statcache = *(Stat_t *)(req->ptr2); 638 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
539 PUSHs (sv_2mortal (newSViv (req->result))); 639
640 PUSHs (sv_result);
540 break; 641 break;
541 642
542 case REQ_READ: 643 case EIO_READ:
644 {
543 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 645 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
544 *SvEND (req->sv1) = 0; 646 *SvEND (req->sv2) = 0;
545 PUSHs (sv_2mortal (newSViv (req->result))); 647 SvPOK_only (req->sv2);
648 SvSETMAGIC (req->sv2);
649 PUSHs (sv_result);
650 }
546 break; 651 break;
547 652
653 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
654 if (req->result > 0)
655 SvIV_set (sv_result, 0);
656 /* FALLTHROUGH */
657
548 default: 658 default:
549 PUSHs (sv_2mortal (newSViv (req->result))); 659 PUSHs (sv_result);
550 break; 660 break;
551 } 661 }
552 662
553 errno = req->errorno; 663 errno = req->errorno;
554 664
555 PUTBACK; 665 PUTBACK;
556 call_sv (req->callback, G_VOID | G_EVAL); 666 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
557 SPAGAIN; 667 SPAGAIN;
668
669 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
670 SvREFCNT_dec (sv_result);
671 else
672 sv_result_cache = sv_result;
558 673
559 FREETMPS; 674 FREETMPS;
560 LEAVE; 675 LEAVE;
676
677 PUTBACK;
561 } 678 }
562 679
563 if (req->grp)
564 {
565 aio_req grp = req->grp;
566
567 /* unlink request */
568 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
569 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
570
571 if (grp->grp_first == req)
572 grp->grp_first = req->grp_next;
573
574 aio_grp_dec (grp);
575 }
576
577 return !SvTRUE (ERRSV); 680 return !!SvTRUE (ERRSV);
578} 681}
579 682
580static void req_free (aio_req req) 683static void
684req_destroy (aio_req req)
581{ 685{
582 if (req->self) 686 if (req->self)
583 { 687 {
584 sv_unmagic (req->self, PERL_MAGIC_ext); 688 sv_unmagic (req->self, PERL_MAGIC_ext);
585 SvREFCNT_dec (req->self); 689 SvREFCNT_dec (req->self);
586 } 690 }
587 691
588 SvREFCNT_dec (req->fh);
589 SvREFCNT_dec (req->sv1); 692 SvREFCNT_dec (req->sv1);
590 SvREFCNT_dec (req->sv2); 693 SvREFCNT_dec (req->sv2);
694 SvREFCNT_dec (req->sv3);
695 SvREFCNT_dec (req->sv4);
591 SvREFCNT_dec (req->callback); 696 SvREFCNT_dec (req->callback);
592 697
593 if (req->flags & FLAG_PTR2_FREE)
594 free (req->ptr2);
595
596 Safefree (req); 698 free (req);
597} 699}
598 700
701static void
599static void req_cancel_subs (aio_req grp) 702req_cancel_subs (aio_req grp)
600{ 703{
601 aio_req sub;
602
603 if (grp->type != REQ_GROUP) 704 if (grp->type != EIO_GROUP)
604 return; 705 return;
605 706
606 SvREFCNT_dec (grp->sv2); 707 SvREFCNT_dec (grp->sv2);
607 grp->sv2 = 0; 708 grp->sv2 = 0;
608 709
609 for (sub = grp->grp_first; sub; sub = sub->grp_next) 710 eio_grp_cancel (grp);
610 req_cancel (sub);
611} 711}
612 712
613static void req_cancel (aio_req req) 713static void ecb_cold
714create_respipe (void)
614{ 715{
615 req->flags |= FLAG_CANCELLED; 716 if (s_epipe_renew (&respipe))
616 717 croak ("IO::AIO: unable to initialize result pipe");
617 req_cancel_subs (req);
618} 718}
619 719
620static void *aio_proc(void *arg); 720static void
621 721poll_wait (void)
622static void start_thread (void)
623{ 722{
624 sigset_t fullsigset, oldsigset;
625 pthread_attr_t attr;
626
627 worker *wrk = calloc (1, sizeof (worker));
628
629 if (!wrk)
630 croak ("unable to allocate worker thread data");
631
632 pthread_attr_init (&attr);
633 pthread_attr_setstacksize (&attr, STACKSIZE);
634 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
635#ifdef PTHREAD_SCOPE_PROCESS
636 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
637#endif
638
639 sigfillset (&fullsigset);
640
641 LOCK (wrklock);
642 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
643
644 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
645 {
646 wrk->prev = &wrk_first;
647 wrk->next = wrk_first.next;
648 wrk_first.next->prev = wrk;
649 wrk_first.next = wrk;
650 ++started;
651 }
652 else
653 free (wrk);
654
655 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
656 UNLOCK (wrklock);
657}
658
659static void maybe_start_thread ()
660{
661 if (get_nthreads () >= wanted)
662 return;
663
664 /* todo: maybe use idle here, but might be less exact */
665 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
666 return;
667
668 start_thread ();
669}
670
671static void req_send (aio_req req)
672{
673 block_sig ();
674
675 ++nreqs;
676
677 LOCK (reqlock);
678 ++nready;
679 reqq_push (&req_queue, req);
680 pthread_cond_signal (&reqwait);
681 UNLOCK (reqlock);
682
683 unblock_sig ();
684
685 maybe_start_thread ();
686}
687
688static void end_thread (void)
689{
690 aio_req req;
691
692 Newz (0, req, 1, aio_cb);
693
694 req->type = REQ_QUIT;
695 req->pri = PRI_MAX + PRI_BIAS;
696
697 LOCK (reqlock);
698 reqq_push (&req_queue, req);
699 pthread_cond_signal (&reqwait);
700 UNLOCK (reqlock);
701
702 LOCK (wrklock);
703 --started;
704 UNLOCK (wrklock);
705}
706
707static void set_max_idle (int nthreads)
708{
709 if (WORDACCESS_UNSAFE) LOCK (reqlock);
710 max_idle = nthreads <= 0 ? 1 : nthreads;
711 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
712}
713
714static void min_parallel (int nthreads)
715{
716 if (wanted < nthreads)
717 wanted = nthreads;
718}
719
720static void max_parallel (int nthreads)
721{
722 if (wanted > nthreads)
723 wanted = nthreads;
724
725 while (started > wanted)
726 end_thread ();
727}
728
729static void poll_wait ()
730{
731 fd_set rfd;
732
733 while (nreqs) 723 while (eio_nreqs ())
734 { 724 {
735 int size; 725 int size;
736 if (WORDACCESS_UNSAFE) LOCK (reslock); 726
727 X_LOCK (reslock);
737 size = res_queue.size; 728 size = res_queue.size;
738 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 729 X_UNLOCK (reslock);
739 730
740 if (size) 731 if (size)
741 return; 732 return;
742 733
743 maybe_start_thread (); 734 etp_maybe_start_thread ();
744 735
745 FD_ZERO(&rfd); 736 s_epipe_wait (&respipe);
746 FD_SET(respipe [0], &rfd);
747
748 select (respipe [0] + 1, &rfd, 0, 0, 0);
749 } 737 }
750} 738}
751 739
752static int poll_cb () 740static int
741poll_cb (void)
753{ 742{
754 dSP;
755 int count = 0;
756 int maxreqs = max_poll_reqs;
757 int do_croak = 0;
758 struct timeval tv_start, tv_now;
759 aio_req req;
760
761 if (max_poll_time)
762 gettimeofday (&tv_start, 0);
763
764 block_sig ();
765
766 for (;;) 743 for (;;)
767 { 744 {
768 for (;;) 745 int res = eio_poll ();
746
747 if (res > 0)
748 croak (0);
749
750 if (!max_outstanding || max_outstanding > eio_nreqs ())
751 return res;
752
753 poll_wait ();
754 }
755}
756
757static void ecb_cold
758reinit (void)
759{
760 create_respipe ();
761
762 if (eio_init (want_poll, done_poll) < 0)
763 croak ("IO::AIO: unable to initialise eio library");
764}
765
766/*****************************************************************************/
767
768#if !_POSIX_MAPPED_FILES
769# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
770# define munmap(addr,length) (errno = ENOSYS, -1)
771#endif
772
773#if !_POSIX_MEMORY_PROTECTION
774# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
775# define PROT_NONE 0
776# define PROT_WRITE 0
777# define MAP_PRIVATE 0
778# define MAP_SHARED 0
779# define MAP_FIXED 0
780#endif
781
782#define MMAP_MAGIC PERL_MAGIC_ext
783
784static int ecb_cold
785mmap_free (pTHX_ SV *sv, MAGIC *mg)
786{
787 int old_errno = errno;
788 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
789 errno = old_errno;
790
791 mg->mg_obj = 0; /* just in case */
792
793 SvREADONLY_off (sv);
794
795 if (SvPVX (sv) != mg->mg_ptr)
796 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
797
798 SvCUR_set (sv, 0);
799 SvPVX (sv) = 0;
800 SvOK_off (sv);
801
802 return 0;
803}
804
805static MGVTBL mmap_vtbl = {
806 0, 0, 0, 0, mmap_free
807};
808
809/*****************************************************************************/
810
811static SV *
812get_cb (SV *cb_sv)
813{
814 SvGETMAGIC (cb_sv);
815 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
816}
817
818static aio_req ecb_noinline
819dreq (SV *callback)
820{
821 SV *cb_cv;
822 aio_req req;
823 int req_pri = next_pri;
824 next_pri = EIO_PRI_DEFAULT;
825
826 cb_cv = get_cb (callback);
827
828 req = calloc (sizeof (*req), 1);
829 if (!req)
830 croak ("out of memory during eio_req allocation");
831
832 req->callback = SvREFCNT_inc (cb_cv);
833 req->pri = req_pri;
834
835 return req;
836}
837
838#define dREQ \
839 aio_req req = dreq (callback); \
840
841#define REQ_SEND \
842 PUTBACK; \
843 req_submit (req); \
844 SPAGAIN; \
845 \
846 if (GIMME_V != G_VOID) \
847 XPUSHs (req_sv (req, aio_req_stash));
848
849ecb_inline void
850req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
851{
852 if (expect_false (SvROK (path)))
853 {
854 SV *rv = SvRV (path);
855 SV *wdob;
856
857 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
769 { 858 {
770 maybe_start_thread (); 859 path = AvARRAY (rv)[1];
860 wdob = AvARRAY (rv)[0];
771 861
772 LOCK (reslock); 862 if (SvOK (wdob))
773 req = reqq_shift (&res_queue);
774
775 if (req)
776 { 863 {
777 --npending; 864 *wd = SvAIO_WD (wdob);
778 865 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
779 if (!res_queue.size)
780 {
781 /* read any signals sent by the worker threads */
782 char buf [32];
783 while (read (respipe [0], buf, 32) == 32)
784 ;
785 }
786 }
787
788 UNLOCK (reslock);
789
790 if (!req)
791 break;
792
793 --nreqs;
794
795 if (req->type == REQ_GROUP && req->size)
796 {
797 req->int1 = 1; /* mark request as delayed */
798 continue;
799 } 866 }
800 else 867 else
801 { 868 *wd = EIO_INVALID_WD;
802 if (!req_invoke (req))
803 {
804 req_free (req);
805 unblock_sig ();
806 croak (0);
807 }
808
809 count++;
810 }
811
812 req_free (req);
813
814 if (maxreqs && !--maxreqs)
815 break;
816
817 if (max_poll_time)
818 {
819 gettimeofday (&tv_now, 0);
820
821 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
822 break;
823 }
824 } 869 }
870 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
871 {
872 *wd = (aio_wd)(long)SvIVX (rv);
873 *wdsv = SvREFCNT_inc_NN (rv);
874 *ptr = ".";
875 return; /* path set to "." */
876 }
877 else
878 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
879 }
825 880
826 if (nreqs <= max_outstanding) 881 *pathsv = newSVsv (path);
882 *ptr = SvPVbyte_nolen (*pathsv);
883}
884
885static void ecb_noinline
886req_set_path1 (aio_req req, SV *path)
887{
888 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
889}
890
891static void ecb_noinline
892req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
893{
894 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
895
896 switch (SvTYPE (rv))
897 {
898 case SVt_PVIO:
899 case SVt_PVLV:
900 case SVt_PVGV:
901 req->type = type_fh;
902 req->sv1 = newSVsv (fh_or_path);
903 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
827 break; 904 break;
828 905
829 poll_wait (); 906 default:
830 907 req->type = type_path;
831 ++maxreqs; 908 req_set_path1 (req, fh_or_path);
909 break;
832 } 910 }
833
834 unblock_sig ();
835 return count;
836} 911}
837 912
838static void create_pipe () 913XS(boot_IO__AIO) ecb_cold;
839{
840 if (pipe (respipe))
841 croak ("unable to initialize result pipe");
842 914
843 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
844 croak ("cannot set result pipe to nonblocking mode");
845
846 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
847 croak ("cannot set result pipe to nonblocking mode");
848}
849
850/*****************************************************************************/
851/* work around various missing functions */
852
853#if !HAVE_PREADWRITE
854# define pread aio_pread
855# define pwrite aio_pwrite
856
857/*
858 * make our pread/pwrite safe against themselves, but not against
859 * normal read/write by using a mutex. slows down execution a lot,
860 * but that's your problem, not mine.
861 */
862static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
863
864static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
865{
866 ssize_t res;
867 off_t ooffset;
868
869 LOCK (preadwritelock);
870 ooffset = lseek (fd, 0, SEEK_CUR);
871 lseek (fd, offset, SEEK_SET);
872 res = read (fd, buf, count);
873 lseek (fd, ooffset, SEEK_SET);
874 UNLOCK (preadwritelock);
875
876 return res;
877}
878
879static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
880{
881 ssize_t res;
882 off_t ooffset;
883
884 LOCK (preadwritelock);
885 ooffset = lseek (fd, 0, SEEK_CUR);
886 lseek (fd, offset, SEEK_SET);
887 res = write (fd, buf, count);
888 lseek (fd, offset, SEEK_SET);
889 UNLOCK (preadwritelock);
890
891 return res;
892}
893#endif
894
895#if !HAVE_FDATASYNC
896# define fdatasync fsync
897#endif
898
899#if !HAVE_READAHEAD
900# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
901
902static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
903{
904 dBUF;
905
906 while (count > 0)
907 {
908 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
909
910 pread (fd, aio_buf, len, offset);
911 offset += len;
912 count -= len;
913 }
914
915 errno = 0;
916}
917
918#endif
919
920#if !HAVE_READDIR_R
921# define readdir_r aio_readdir_r
922
923static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
924
925static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
926{
927 struct dirent *e;
928 int errorno;
929
930 LOCK (readdirlock);
931
932 e = readdir (dirp);
933 errorno = errno;
934
935 if (e)
936 {
937 *res = ent;
938 strcpy (ent->d_name, e->d_name);
939 }
940 else
941 *res = 0;
942
943 UNLOCK (readdirlock);
944
945 errno = errorno;
946 return e ? 0 : -1;
947}
948#endif
949
950/* sendfile always needs emulation */
951static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
952{
953 ssize_t res;
954
955 if (!count)
956 return 0;
957
958#if HAVE_SENDFILE
959# if __linux
960 res = sendfile (ofd, ifd, &offset, count);
961
962# elif __freebsd
963 /*
964 * Of course, the freebsd sendfile is a dire hack with no thoughts
965 * wasted on making it similar to other I/O functions.
966 */
967 {
968 off_t sbytes;
969 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
970
971 if (res < 0 && sbytes)
972 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
973 res = sbytes;
974 }
975
976# elif __hpux
977 res = sendfile (ofd, ifd, offset, count, 0, 0);
978
979# elif __solaris
980 {
981 struct sendfilevec vec;
982 size_t sbytes;
983
984 vec.sfv_fd = ifd;
985 vec.sfv_flag = 0;
986 vec.sfv_off = offset;
987 vec.sfv_len = count;
988
989 res = sendfilev (ofd, &vec, 1, &sbytes);
990
991 if (res < 0 && sbytes)
992 res = sbytes;
993 }
994
995# endif
996#else
997 res = -1;
998 errno = ENOSYS;
999#endif
1000
1001 if (res < 0
1002 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1003#if __solaris
1004 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1005#endif
1006 )
1007 )
1008 {
1009 /* emulate sendfile. this is a major pain in the ass */
1010 dBUF;
1011
1012 res = 0;
1013
1014 while (count)
1015 {
1016 ssize_t cnt;
1017
1018 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1019
1020 if (cnt <= 0)
1021 {
1022 if (cnt && !res) res = -1;
1023 break;
1024 }
1025
1026 cnt = write (ofd, aio_buf, cnt);
1027
1028 if (cnt <= 0)
1029 {
1030 if (cnt && !res) res = -1;
1031 break;
1032 }
1033
1034 offset += cnt;
1035 res += cnt;
1036 count -= cnt;
1037 }
1038 }
1039
1040 return res;
1041}
1042
1043/* read a full directory */
1044static void scandir_ (aio_req req, worker *self)
1045{
1046 DIR *dirp;
1047 union
1048 {
1049 struct dirent d;
1050 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1051 } *u;
1052 struct dirent *entp;
1053 char *name, *names;
1054 int memlen = 4096;
1055 int memofs = 0;
1056 int res = 0;
1057 int errorno;
1058
1059 LOCK (wrklock);
1060 self->dirp = dirp = opendir (req->ptr1);
1061 self->dbuf = u = malloc (sizeof (*u));
1062 req->flags |= FLAG_PTR2_FREE;
1063 req->ptr2 = names = malloc (memlen);
1064 UNLOCK (wrklock);
1065
1066 if (dirp && u && names)
1067 for (;;)
1068 {
1069 errno = 0;
1070 readdir_r (dirp, &u->d, &entp);
1071
1072 if (!entp)
1073 break;
1074
1075 name = entp->d_name;
1076
1077 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1078 {
1079 int len = strlen (name) + 1;
1080
1081 res++;
1082
1083 while (memofs + len > memlen)
1084 {
1085 memlen *= 2;
1086 LOCK (wrklock);
1087 req->ptr2 = names = realloc (names, memlen);
1088 UNLOCK (wrklock);
1089
1090 if (!names)
1091 break;
1092 }
1093
1094 memcpy (names + memofs, name, len);
1095 memofs += len;
1096 }
1097 }
1098
1099 if (errno)
1100 res = -1;
1101
1102 req->result = res;
1103}
1104
1105/*****************************************************************************/
1106
1107static void *aio_proc (void *thr_arg)
1108{
1109 aio_req req;
1110 struct timespec ts;
1111 worker *self = (worker *)thr_arg;
1112
1113 /* try to distribute timeouts somewhat evenly */
1114 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1115 * (1000000000UL / 1024UL);
1116
1117 for (;;)
1118 {
1119 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1120
1121 LOCK (reqlock);
1122
1123 for (;;)
1124 {
1125 self->req = req = reqq_shift (&req_queue);
1126
1127 if (req)
1128 break;
1129
1130 ++idle;
1131
1132 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1133 == ETIMEDOUT)
1134 {
1135 if (idle > max_idle)
1136 {
1137 --idle;
1138 UNLOCK (reqlock);
1139 LOCK (wrklock);
1140 --started;
1141 UNLOCK (wrklock);
1142 goto quit;
1143 }
1144
1145 /* we are allowed to idle, so do so without any timeout */
1146 pthread_cond_wait (&reqwait, &reqlock);
1147 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1148 }
1149
1150 --idle;
1151 }
1152
1153 --nready;
1154
1155 UNLOCK (reqlock);
1156
1157 errno = 0; /* strictly unnecessary */
1158
1159 if (!(req->flags & FLAG_CANCELLED))
1160 switch (req->type)
1161 {
1162 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1163 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1164
1165 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1166 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1167
1168 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1169 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1170 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1171
1172 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1173 case REQ_CLOSE: req->result = close (req->int1); break;
1174 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1175 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1176 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1177 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1178 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1179 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1180 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1181
1182 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1183 case REQ_FSYNC: req->result = fsync (req->int1); break;
1184 case REQ_READDIR: scandir_ (req, self); break;
1185
1186 case REQ_BUSY:
1187 {
1188 struct timeval tv;
1189
1190 tv.tv_sec = req->int1;
1191 tv.tv_usec = req->int2;
1192
1193 req->result = select (0, 0, 0, 0, &tv);
1194 }
1195
1196 case REQ_GROUP:
1197 case REQ_NOP:
1198 break;
1199
1200 case REQ_QUIT:
1201 goto quit;
1202
1203 default:
1204 req->result = ENOSYS;
1205 break;
1206 }
1207
1208 req->errorno = errno;
1209
1210 LOCK (reslock);
1211
1212 ++npending;
1213
1214 if (!reqq_push (&res_queue, req))
1215 {
1216 /* write a dummy byte to the pipe so fh becomes ready */
1217 write (respipe [1], &respipe, 1);
1218
1219 /* optionally signal the main thread asynchronously */
1220 if (main_sig)
1221 pthread_kill (main_tid, main_sig);
1222 }
1223
1224 self->req = 0;
1225 worker_clear (self);
1226
1227 UNLOCK (reslock);
1228 }
1229
1230quit:
1231 LOCK (wrklock);
1232 worker_free (self);
1233 UNLOCK (wrklock);
1234
1235 return 0;
1236}
1237
1238/*****************************************************************************/
1239
1240static void atfork_prepare (void)
1241{
1242 LOCK (wrklock);
1243 LOCK (reqlock);
1244 LOCK (reslock);
1245#if !HAVE_PREADWRITE
1246 LOCK (preadwritelock);
1247#endif
1248#if !HAVE_READDIR_R
1249 LOCK (readdirlock);
1250#endif
1251}
1252
1253static void atfork_parent (void)
1254{
1255#if !HAVE_READDIR_R
1256 UNLOCK (readdirlock);
1257#endif
1258#if !HAVE_PREADWRITE
1259 UNLOCK (preadwritelock);
1260#endif
1261 UNLOCK (reslock);
1262 UNLOCK (reqlock);
1263 UNLOCK (wrklock);
1264}
1265
1266static void atfork_child (void)
1267{
1268 aio_req prv;
1269
1270 while (prv = reqq_shift (&req_queue))
1271 req_free (prv);
1272
1273 while (prv = reqq_shift (&res_queue))
1274 req_free (prv);
1275
1276 while (wrk_first.next != &wrk_first)
1277 {
1278 worker *wrk = wrk_first.next;
1279
1280 if (wrk->req)
1281 req_free (wrk->req);
1282
1283 worker_clear (wrk);
1284 worker_free (wrk);
1285 }
1286
1287 started = 0;
1288 idle = 0;
1289 nreqs = 0;
1290 nready = 0;
1291 npending = 0;
1292
1293 close (respipe [0]);
1294 close (respipe [1]);
1295 create_pipe ();
1296
1297 atfork_parent ();
1298}
1299
1300#define dREQ \
1301 aio_req req; \
1302 int req_pri = next_pri; \
1303 next_pri = DEFAULT_PRI + PRI_BIAS; \
1304 \
1305 if (SvOK (callback) && !SvROK (callback)) \
1306 croak ("callback must be undef or of reference type"); \
1307 \
1308 Newz (0, req, 1, aio_cb); \
1309 if (!req) \
1310 croak ("out of memory during aio_req allocation"); \
1311 \
1312 req->callback = newSVsv (callback); \
1313 req->pri = req_pri
1314
1315#define REQ_SEND \
1316 req_send (req); \
1317 \
1318 if (GIMME_V != G_VOID) \
1319 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1320
1321MODULE = IO::AIO PACKAGE = IO::AIO 915MODULE = IO::AIO PACKAGE = IO::AIO
1322 916
1323PROTOTYPES: ENABLE 917PROTOTYPES: ENABLE
1324 918
1325BOOT: 919BOOT:
1326{ 920{
921 static const struct {
922 const char *name;
923 IV iv;
924 } *civ, const_iv[] = {
925# define const_niv(name, value) { # name, (IV) value },
926# define const_iv(name) { # name, (IV) name },
927# define const_eio(name) { # name, (IV) EIO_ ## name },
928 const_iv (EXDEV)
929 const_iv (ENOSYS)
930 const_iv (O_RDONLY)
931 const_iv (O_WRONLY)
932 const_iv (O_RDWR)
933 const_iv (O_CREAT)
934 const_iv (O_TRUNC)
935 const_iv (O_EXCL)
936 const_iv (O_APPEND)
937
938 const_iv (O_ASYNC)
939 const_iv (O_DIRECT)
940 const_iv (O_NOATIME)
941
942 const_iv (O_CLOEXEC)
943 const_iv (O_NOCTTY)
944 const_iv (O_NOFOLLOW)
945 const_iv (O_NONBLOCK)
946 const_iv (O_EXEC)
947 const_iv (O_SEARCH)
948 const_iv (O_DIRECTORY)
949 const_iv (O_DSYNC)
950 const_iv (O_RSYNC)
951 const_iv (O_SYNC)
952 const_iv (O_TTY_INIT)
953
954 const_iv (S_IFIFO)
955 const_iv (S_IFCHR)
956 const_iv (S_IFBLK)
957 const_iv (S_IFLNK)
958 const_iv (S_IFREG)
959 const_iv (S_IFDIR)
960 const_iv (S_IFWHT)
961 const_iv (S_IFSOCK)
962 const_iv (S_IFMT)
963
964 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
965 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
966 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
967 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
968 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
969 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
970
971 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
972 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
973 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
974 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
975 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
976
977 const_iv (ST_RDONLY)
978 const_iv (ST_NOSUID)
979 const_iv (ST_NODEV)
980 const_iv (ST_NOEXEC)
981 const_iv (ST_SYNCHRONOUS)
982 const_iv (ST_MANDLOCK)
983 const_iv (ST_WRITE)
984 const_iv (ST_APPEND)
985 const_iv (ST_IMMUTABLE)
986 const_iv (ST_NOATIME)
987 const_iv (ST_NODIRATIME)
988 const_iv (ST_RELATIME)
989
990 const_iv (PROT_NONE)
991 const_iv (PROT_EXEC)
992 const_iv (PROT_READ)
993 const_iv (PROT_WRITE)
994
995 /*const_iv (MAP_FIXED)*/
996 const_iv (MAP_PRIVATE)
997 const_iv (MAP_SHARED)
998 const_iv (MAP_ANONYMOUS)
999
1000 /* linuxish */
1001 const_iv (MAP_HUGETLB)
1002 const_iv (MAP_LOCKED)
1003 const_iv (MAP_NORESERVE)
1004 const_iv (MAP_POPULATE)
1005 const_iv (MAP_NONBLOCK)
1006
1007 const_eio (MCL_FUTURE)
1008 const_eio (MCL_CURRENT)
1009
1010 const_eio (MS_ASYNC)
1011 const_eio (MS_INVALIDATE)
1012 const_eio (MS_SYNC)
1013
1014 const_eio (MT_MODIFY)
1015
1016 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1017 const_eio (SYNC_FILE_RANGE_WRITE)
1018 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1019
1020 const_eio (FALLOC_FL_KEEP_SIZE)
1021
1022 const_eio (READDIR_DENTS)
1023 const_eio (READDIR_DIRS_FIRST)
1024 const_eio (READDIR_STAT_ORDER)
1025 const_eio (READDIR_FOUND_UNKNOWN)
1026
1027 const_eio (DT_UNKNOWN)
1028 const_eio (DT_FIFO)
1029 const_eio (DT_CHR)
1030 const_eio (DT_DIR)
1031 const_eio (DT_BLK)
1032 const_eio (DT_REG)
1033 const_eio (DT_LNK)
1034 const_eio (DT_SOCK)
1035 const_eio (DT_WHT)
1036 };
1037
1327 HV *stash = gv_stashpv ("IO::AIO", 1); 1038 aio_stash = gv_stashpv ("IO::AIO" , 1);
1039 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1040 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1041 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1328 1042
1329 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1043 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1330 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1044 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1331 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1332 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1333 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1334 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1335 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1336 1045
1337 create_pipe (); 1046 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1338 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1339}
1340 1047
1048 reinit ();
1049}
1050
1341void 1051void
1052reinit ()
1053 PROTOTYPE:
1054
1055void
1342max_poll_reqs (int nreqs) 1056max_poll_reqs (unsigned int nreqs)
1343 PROTOTYPE: $ 1057 PROTOTYPE: $
1344 CODE: 1058 CODE:
1345 max_poll_reqs = nreqs; 1059 eio_set_max_poll_reqs (nreqs);
1346 1060
1347void 1061void
1348max_poll_time (double nseconds) 1062max_poll_time (double nseconds)
1349 PROTOTYPE: $ 1063 PROTOTYPE: $
1350 CODE: 1064 CODE:
1351 max_poll_time = nseconds * AIO_TICKS; 1065 eio_set_max_poll_time (nseconds);
1352 1066
1353void 1067void
1354min_parallel (int nthreads) 1068min_parallel (unsigned int nthreads)
1355 PROTOTYPE: $
1356
1357void
1358max_parallel (int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_idle (int nthreads)
1363 PROTOTYPE: $ 1069 PROTOTYPE: $
1364 CODE: 1070 CODE:
1365 set_max_idle (nthreads); 1071 eio_set_min_parallel (nthreads);
1366 1072
1367int 1073void
1368max_outstanding (int maxreqs) 1074max_parallel (unsigned int nthreads)
1369 PROTOTYPE: $ 1075 PROTOTYPE: $
1370 CODE: 1076 CODE:
1371 RETVAL = max_outstanding; 1077 eio_set_max_parallel (nthreads);
1078
1079void
1080max_idle (unsigned int nthreads)
1081 PROTOTYPE: $
1082 CODE:
1083 eio_set_max_idle (nthreads);
1084
1085void
1086idle_timeout (unsigned int seconds)
1087 PROTOTYPE: $
1088 CODE:
1089 eio_set_idle_timeout (seconds);
1090
1091void
1092max_outstanding (unsigned int maxreqs)
1093 PROTOTYPE: $
1094 CODE:
1372 max_outstanding = maxreqs; 1095 max_outstanding = maxreqs;
1373 OUTPUT:
1374 RETVAL
1375 1096
1376void 1097void
1377aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1098aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1378 SV8 * pathname
1379 int flags
1380 int mode
1381 SV * callback
1382 PROTOTYPE: $$$;$
1383 PPCODE: 1099 PPCODE:
1384{ 1100{
1385 dREQ; 1101 dREQ;
1386 1102
1103 req->type = EIO_WD_OPEN;
1104 req_set_path1 (req, pathname);
1105
1106 REQ_SEND;
1107}
1108
1109void
1110aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1111 PPCODE:
1112{
1113 dREQ;
1114
1387 req->type = REQ_OPEN; 1115 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 1116 req_set_path1 (req, pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 1117 req->int1 = flags;
1391 req->mode = mode; 1118 req->int2 = mode;
1392 1119
1393 REQ_SEND; 1120 REQ_SEND;
1394} 1121}
1395 1122
1396void 1123void
1397aio_close (fh,callback=&PL_sv_undef) 1124aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1398 SV * fh
1399 SV * callback
1400 PROTOTYPE: $;$
1401 ALIAS: 1125 ALIAS:
1402 aio_close = REQ_CLOSE
1403 aio_fsync = REQ_FSYNC 1126 aio_fsync = EIO_FSYNC
1404 aio_fdatasync = REQ_FDATASYNC 1127 aio_fdatasync = EIO_FDATASYNC
1128 aio_syncfs = EIO_SYNCFS
1405 PPCODE: 1129 PPCODE:
1406{ 1130{
1131 int fd = s_fileno_croak (fh, 0);
1407 dREQ; 1132 dREQ;
1408 1133
1409 req->type = ix; 1134 req->type = ix;
1410 req->fh = newSVsv (fh); 1135 req->sv1 = newSVsv (fh);
1411 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1136 req->int1 = fd;
1412 1137
1413 REQ_SEND (req); 1138 REQ_SEND (req);
1414} 1139}
1415 1140
1416void 1141void
1142aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1143 PPCODE:
1144{
1145 int fd = s_fileno_croak (fh, 0);
1146 dREQ;
1147
1148 req->type = EIO_SYNC_FILE_RANGE;
1149 req->sv1 = newSVsv (fh);
1150 req->int1 = fd;
1151 req->offs = offset;
1152 req->size = nbytes;
1153 req->int2 = flags;
1154
1155 REQ_SEND (req);
1156}
1157
1158void
1159aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1160 PPCODE:
1161{
1162 int fd = s_fileno_croak (fh, 0);
1163 dREQ;
1164
1165 req->type = EIO_FALLOCATE;
1166 req->sv1 = newSVsv (fh);
1167 req->int1 = fd;
1168 req->int2 = mode;
1169 req->offs = offset;
1170 req->size = len;
1171
1172 REQ_SEND (req);
1173}
1174
1175void
1176aio_close (SV *fh, SV *callback=&PL_sv_undef)
1177 PPCODE:
1178{
1179 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1180 int fd = s_fileno_croak (fh, 0);
1181 dREQ;
1182
1183 if (expect_false (close_fd < 0))
1184 {
1185 int pipefd [2];
1186
1187 if (
1188#ifdef _WIN32
1189 _pipe (pipefd, 1, _O_BINARY) < 0
1190#else
1191 pipe (pipefd) < 0
1192 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1193#endif
1194 || close (pipefd [1]) < 0
1195 )
1196 abort (); /*D*/
1197
1198 close_fd = pipefd [0];
1199 }
1200
1201 req->type = EIO_DUP2;
1202 req->int1 = close_fd;
1203 req->sv2 = newSVsv (fh);
1204 req->int2 = fd;
1205
1206 REQ_SEND (req);
1207}
1208
1209void
1417aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1210aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1418 SV * fh
1419 UV offset
1420 UV length
1421 SV8 * data
1422 UV dataoffset
1423 SV * callback
1424 ALIAS: 1211 ALIAS:
1425 aio_read = REQ_READ 1212 aio_read = EIO_READ
1426 aio_write = REQ_WRITE 1213 aio_write = EIO_WRITE
1427 PROTOTYPE: $$$$$;$
1428 PPCODE: 1214 PPCODE:
1429{ 1215{
1430 STRLEN svlen; 1216 STRLEN svlen;
1217 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1431 char *svptr = SvPVbyte (data, svlen); 1218 char *svptr = SvPVbyte (data, svlen);
1432 1219 UV len = SvUV (length);
1433 SvUPGRADE (data, SVt_PV);
1434 SvPOK_on (data);
1435 1220
1436 if (dataoffset < 0) 1221 if (dataoffset < 0)
1437 dataoffset += svlen; 1222 dataoffset += svlen;
1438 1223
1439 if (dataoffset < 0 || dataoffset > svlen) 1224 if (dataoffset < 0 || dataoffset > svlen)
1440 croak ("data offset outside of string"); 1225 croak ("dataoffset outside of data scalar");
1441 1226
1442 if (ix == REQ_WRITE) 1227 if (ix == EIO_WRITE)
1443 { 1228 {
1444 /* write: check length and adjust. */ 1229 /* write: check length and adjust. */
1445 if (length < 0 || length + dataoffset > svlen) 1230 if (!SvOK (length) || len + dataoffset > svlen)
1446 length = svlen - dataoffset; 1231 len = svlen - dataoffset;
1447 } 1232 }
1448 else 1233 else
1449 { 1234 {
1450 /* read: grow scalar as necessary */ 1235 /* read: check type and grow scalar as necessary */
1236 SvUPGRADE (data, SVt_PV);
1451 svptr = SvGROW (data, length + dataoffset); 1237 svptr = SvGROW (data, len + dataoffset + 1);
1452 } 1238 }
1453
1454 if (length < 0)
1455 croak ("length must not be negative");
1456 1239
1457 { 1240 {
1458 dREQ; 1241 dREQ;
1459 1242
1460 req->type = ix; 1243 req->type = ix;
1461 req->fh = newSVsv (fh); 1244 req->sv1 = newSVsv (fh);
1462 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1245 req->int1 = fd;
1463 : IoOFP (sv_2io (fh))); 1246 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1464 req->offs = offset;
1465 req->size = length; 1247 req->size = len;
1466 req->sv1 = SvREFCNT_inc (data); 1248 req->sv2 = SvREFCNT_inc (data);
1467 req->ptr1 = (char *)svptr + dataoffset; 1249 req->ptr2 = (char *)svptr + dataoffset;
1468 req->stroffset = dataoffset; 1250 req->stroffset = dataoffset;
1469 1251
1470 if (!SvREADONLY (data)) 1252 if (!SvREADONLY (data))
1471 { 1253 {
1472 SvREADONLY_on (data); 1254 SvREADONLY_on (data);
1473 req->flags |= FLAG_SV1_RO_OFF; 1255 req->flags |= FLAG_SV2_RO_OFF;
1474 } 1256 }
1475 1257
1476 REQ_SEND; 1258 REQ_SEND;
1477 } 1259 }
1478} 1260}
1479 1261
1480void 1262void
1481aio_readlink (path,callback=&PL_sv_undef) 1263aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1482 SV8 * path 1264 ALIAS:
1483 SV * callback 1265 aio_readlink = EIO_READLINK
1484 PROTOTYPE: $$;$ 1266 aio_realpath = EIO_REALPATH
1485 PPCODE: 1267 PPCODE:
1486{ 1268{
1487 SV *data;
1488 dREQ; 1269 dREQ;
1489 1270
1490 data = newSV (NAME_MAX);
1491 SvPOK_on (data);
1492
1493 req->type = REQ_READLINK; 1271 req->type = ix;
1494 req->fh = newSVsv (path); 1272 req_set_path1 (req, pathname);
1495 req->ptr2 = SvPVbyte_nolen (req->fh);
1496 req->sv1 = data;
1497 req->ptr1 = SvPVbyte_nolen (data);
1498 1273
1499 REQ_SEND; 1274 REQ_SEND;
1500} 1275}
1501 1276
1502void 1277void
1503aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1278aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1504 SV * out_fh
1505 SV * in_fh
1506 UV in_offset
1507 UV length
1508 SV * callback
1509 PROTOTYPE: $$$$;$
1510 PPCODE: 1279 PPCODE:
1511{ 1280{
1281 int ifd = s_fileno_croak (in_fh , 0);
1282 int ofd = s_fileno_croak (out_fh, 1);
1512 dREQ; 1283 dREQ;
1513 1284
1514 req->type = REQ_SENDFILE; 1285 req->type = EIO_SENDFILE;
1515 req->fh = newSVsv (out_fh); 1286 req->sv1 = newSVsv (out_fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1287 req->int1 = ofd;
1517 req->sv2 = newSVsv (in_fh); 1288 req->sv2 = newSVsv (in_fh);
1518 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1289 req->int2 = ifd;
1519 req->offs = in_offset; 1290 req->offs = in_offset;
1520 req->size = length; 1291 req->size = length;
1521 1292
1522 REQ_SEND; 1293 REQ_SEND;
1523} 1294}
1524 1295
1525void 1296void
1526aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1297aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1527 SV * fh
1528 UV offset
1529 IV length
1530 SV * callback
1531 PROTOTYPE: $$$;$
1532 PPCODE: 1298 PPCODE:
1533{ 1299{
1300 int fd = s_fileno_croak (fh, 0);
1534 dREQ; 1301 dREQ;
1535 1302
1536 req->type = REQ_READAHEAD; 1303 req->type = EIO_READAHEAD;
1537 req->fh = newSVsv (fh); 1304 req->sv1 = newSVsv (fh);
1538 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1305 req->int1 = fd;
1539 req->offs = offset; 1306 req->offs = offset;
1540 req->size = length; 1307 req->size = length;
1541 1308
1542 REQ_SEND; 1309 REQ_SEND;
1543} 1310}
1544 1311
1545void 1312void
1546aio_stat (fh_or_path,callback=&PL_sv_undef) 1313aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1547 SV8 * fh_or_path
1548 SV * callback
1549 ALIAS: 1314 ALIAS:
1550 aio_stat = REQ_STAT 1315 aio_stat = EIO_STAT
1551 aio_lstat = REQ_LSTAT 1316 aio_lstat = EIO_LSTAT
1317 aio_statvfs = EIO_STATVFS
1552 PPCODE: 1318 PPCODE:
1553{ 1319{
1554 dREQ; 1320 dREQ;
1555 1321
1556 req->ptr2 = malloc (sizeof (Stat_t)); 1322 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1557 if (!req->ptr2)
1558 {
1559 req_free (req);
1560 croak ("out of memory during aio_stat statdata allocation");
1561 }
1562
1563 req->flags |= FLAG_PTR2_FREE;
1564
1565 if (SvPOK (fh_or_path))
1566 {
1567 req->type = ix;
1568 req->sv1 = newSVsv (fh_or_path);
1569 req->ptr1 = SvPVbyte_nolen (req->sv1);
1570 }
1571 else
1572 {
1573 req->type = REQ_FSTAT;
1574 req->fh = newSVsv (fh_or_path);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1576 }
1577 1323
1578 REQ_SEND; 1324 REQ_SEND;
1579} 1325}
1580 1326
1327UV
1328major (UV dev)
1329 ALIAS:
1330 minor = 1
1331 CODE:
1332 RETVAL = ix ? major (dev) : minor (dev);
1333 OUTPUT:
1334 RETVAL
1335
1336UV
1337makedev (UV maj, UV min)
1338 CODE:
1339 RETVAL = makedev (maj, min);
1340 OUTPUT:
1341 RETVAL
1342
1581void 1343void
1344aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1345 PPCODE:
1346{
1347 dREQ;
1348
1349 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1350 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1351 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1358 PPCODE:
1359{
1360 dREQ;
1361
1362 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1363 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1364
1365 REQ_SEND;
1366}
1367
1368void
1369aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1370 PPCODE:
1371{
1372 dREQ;
1373
1374 req->int2 = mode;
1375 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1376
1377 REQ_SEND;
1378}
1379
1380void
1381aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1387 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1388 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1389
1390 REQ_SEND;
1391}
1392
1393void
1394aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->type = EIO_READDIR;
1400 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1401
1402 if (flags & EIO_READDIR_DENTS)
1403 req->int1 |= EIO_READDIR_CUSTOM2;
1404
1405 req_set_path1 (req, pathname);
1406
1407 REQ_SEND;
1408}
1409
1410void
1411aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1412 PPCODE:
1413{
1414 dREQ;
1415
1416 req->type = EIO_MKDIR;
1417 req->int2 = mode;
1418 req_set_path1 (req, pathname);
1419
1420 REQ_SEND;
1421}
1422
1423void
1582aio_unlink (pathname,callback=&PL_sv_undef) 1424aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1583 SV8 * pathname
1584 SV * callback
1585 ALIAS: 1425 ALIAS:
1586 aio_unlink = REQ_UNLINK 1426 aio_unlink = EIO_UNLINK
1587 aio_rmdir = REQ_RMDIR 1427 aio_rmdir = EIO_RMDIR
1588 aio_readdir = REQ_READDIR 1428 aio_readdir = EIO_READDIR
1589 PPCODE: 1429 PPCODE:
1590{ 1430{
1591 dREQ; 1431 dREQ;
1592 1432
1593 req->type = ix; 1433 req->type = ix;
1594 req->sv1 = newSVsv (pathname); 1434 req_set_path1 (req, pathname);
1595 req->ptr1 = SvPVbyte_nolen (req->sv1);
1596 1435
1597 REQ_SEND; 1436 REQ_SEND;
1598} 1437}
1599 1438
1600void 1439void
1601aio_link (oldpath,newpath,callback=&PL_sv_undef) 1440aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1602 SV8 * oldpath
1603 SV8 * newpath
1604 SV * callback
1605 ALIAS: 1441 ALIAS:
1606 aio_link = REQ_LINK 1442 aio_link = EIO_LINK
1607 aio_symlink = REQ_SYMLINK 1443 aio_symlink = EIO_SYMLINK
1608 aio_rename = REQ_RENAME 1444 aio_rename = EIO_RENAME
1609 PPCODE: 1445 PPCODE:
1610{ 1446{
1447 eio_wd wd2 = 0;
1611 dREQ; 1448 dREQ;
1612 1449
1613 req->type = ix; 1450 req->type = ix;
1614 req->fh = newSVsv (oldpath); 1451 req_set_path1 (req, oldpath);
1615 req->ptr2 = SvPVbyte_nolen (req->fh); 1452 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1616 req->sv1 = newSVsv (newpath); 1453 req->int3 = (long)wd2;
1617 req->ptr1 = SvPVbyte_nolen (req->sv1);
1618 1454
1619 REQ_SEND; 1455 REQ_SEND;
1620} 1456}
1621 1457
1622void 1458void
1623aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1459aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1624 SV8 * pathname
1625 SV * callback
1626 UV mode
1627 UV dev
1628 PPCODE: 1460 PPCODE:
1629{ 1461{
1630 dREQ; 1462 dREQ;
1631 1463
1632 req->type = REQ_MKNOD; 1464 req->type = EIO_MKNOD;
1633 req->sv1 = newSVsv (pathname);
1634 req->ptr1 = SvPVbyte_nolen (req->sv1);
1635 req->mode = (mode_t)mode; 1465 req->int2 = (mode_t)mode;
1636 req->offs = dev; 1466 req->offs = dev;
1467 req_set_path1 (req, pathname);
1637 1468
1638 REQ_SEND; 1469 REQ_SEND;
1639} 1470}
1640 1471
1641void 1472void
1473aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1474 ALIAS:
1475 aio_mtouch = EIO_MTOUCH
1476 aio_msync = EIO_MSYNC
1477 PPCODE:
1478{
1479 STRLEN svlen;
1480 char *svptr = SvPVbyte (data, svlen);
1481 UV len = SvUV (length);
1482
1483 if (offset < 0)
1484 offset += svlen;
1485
1486 if (offset < 0 || offset > svlen)
1487 croak ("offset outside of scalar");
1488
1489 if (!SvOK (length) || len + offset > svlen)
1490 len = svlen - offset;
1491
1492 {
1493 dREQ;
1494
1495 req->type = ix;
1496 req->sv2 = SvREFCNT_inc (data);
1497 req->ptr2 = (char *)svptr + offset;
1498 req->size = len;
1499 req->int1 = flags;
1500
1501 REQ_SEND;
1502 }
1503}
1504
1505void
1506aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1507 PPCODE:
1508{
1509 STRLEN svlen;
1510 char *svptr = SvPVbyte (data, svlen);
1511 UV len = SvUV (length);
1512
1513 if (offset < 0)
1514 offset += svlen;
1515
1516 if (offset < 0 || offset > svlen)
1517 croak ("offset outside of scalar");
1518
1519 if (!SvOK (length) || len + offset > svlen)
1520 len = svlen - offset;
1521
1522 {
1523 dREQ;
1524
1525 req->type = EIO_MLOCK;
1526 req->sv2 = SvREFCNT_inc (data);
1527 req->ptr2 = (char *)svptr + offset;
1528 req->size = len;
1529
1530 REQ_SEND;
1531 }
1532}
1533
1534void
1535aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1536 PPCODE:
1537{
1538 dREQ;
1539
1540 req->type = EIO_MLOCKALL;
1541 req->int1 = flags;
1542
1543 REQ_SEND;
1544}
1545
1546void
1642aio_busy (delay,callback=&PL_sv_undef) 1547aio_busy (double delay, SV *callback=&PL_sv_undef)
1643 double delay
1644 SV * callback
1645 PPCODE: 1548 PPCODE:
1646{ 1549{
1647 dREQ; 1550 dREQ;
1648 1551
1649 req->type = REQ_BUSY; 1552 req->type = EIO_BUSY;
1650 req->int1 = delay < 0. ? 0 : delay; 1553 req->nv1 = delay < 0. ? 0. : delay;
1651 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1652 1554
1653 REQ_SEND; 1555 REQ_SEND;
1654} 1556}
1655 1557
1656void 1558void
1657aio_group (callback=&PL_sv_undef) 1559aio_group (SV *callback=&PL_sv_undef)
1658 SV * callback
1659 PROTOTYPE: ;$
1660 PPCODE: 1560 PPCODE:
1661{ 1561{
1662 dREQ; 1562 dREQ;
1663 1563
1664 req->type = REQ_GROUP; 1564 req->type = EIO_GROUP;
1665 1565
1666 req_send (req); 1566 req_submit (req);
1667 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1567 XPUSHs (req_sv (req, aio_grp_stash));
1668} 1568}
1669 1569
1670void 1570void
1671aio_nop (callback=&PL_sv_undef) 1571aio_nop (SV *callback=&PL_sv_undef)
1672 SV * callback 1572 ALIAS:
1573 aio_nop = EIO_NOP
1574 aio_sync = EIO_SYNC
1673 PPCODE: 1575 PPCODE:
1674{ 1576{
1675 dREQ; 1577 dREQ;
1676 1578
1677 req->type = REQ_NOP; 1579 req->type = ix;
1678 1580
1679 REQ_SEND; 1581 REQ_SEND;
1680} 1582}
1681 1583
1682int 1584int
1683aioreq_pri (int pri = 0) 1585aioreq_pri (int pri = 0)
1684 PROTOTYPE: ;$
1685 CODE: 1586 CODE:
1686 RETVAL = next_pri - PRI_BIAS; 1587 RETVAL = next_pri;
1687 if (items > 0) 1588 if (items > 0)
1688 { 1589 {
1689 if (pri < PRI_MIN) pri = PRI_MIN; 1590 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1690 if (pri > PRI_MAX) pri = PRI_MAX; 1591 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1691 next_pri = pri + PRI_BIAS; 1592 next_pri = pri;
1692 } 1593 }
1693 OUTPUT: 1594 OUTPUT:
1694 RETVAL 1595 RETVAL
1695 1596
1696void 1597void
1697aioreq_nice (int nice = 0) 1598aioreq_nice (int nice = 0)
1698 CODE: 1599 CODE:
1699 nice = next_pri - nice; 1600 nice = next_pri - nice;
1700 if (nice < PRI_MIN) nice = PRI_MIN; 1601 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1701 if (nice > PRI_MAX) nice = PRI_MAX; 1602 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1702 next_pri = nice + PRI_BIAS; 1603 next_pri = nice;
1703 1604
1704void 1605void
1705flush () 1606flush ()
1706 PROTOTYPE:
1707 CODE: 1607 CODE:
1708 while (nreqs) 1608 while (eio_nreqs ())
1709 { 1609 {
1710 poll_wait (); 1610 poll_wait ();
1711 poll_cb (); 1611 poll_cb ();
1712 } 1612 }
1713 1613
1714int 1614int
1715poll() 1615poll ()
1716 PROTOTYPE:
1717 CODE: 1616 CODE:
1718 poll_wait (); 1617 poll_wait ();
1719 RETVAL = poll_cb (); 1618 RETVAL = poll_cb ();
1720 OUTPUT: 1619 OUTPUT:
1721 RETVAL 1620 RETVAL
1722 1621
1723int 1622int
1724poll_fileno() 1623poll_fileno ()
1725 PROTOTYPE:
1726 CODE: 1624 CODE:
1727 RETVAL = respipe [0]; 1625 RETVAL = s_epipe_fd (&respipe);
1728 OUTPUT: 1626 OUTPUT:
1729 RETVAL 1627 RETVAL
1730 1628
1731int 1629int
1732poll_cb(...) 1630poll_cb (...)
1733 PROTOTYPE: 1631 PROTOTYPE:
1734 CODE: 1632 CODE:
1735 RETVAL = poll_cb (); 1633 RETVAL = poll_cb ();
1736 OUTPUT: 1634 OUTPUT:
1737 RETVAL 1635 RETVAL
1738 1636
1739void 1637void
1740poll_wait() 1638poll_wait ()
1741 PROTOTYPE:
1742 CODE: 1639 CODE:
1743 poll_wait (); 1640 poll_wait ();
1744 1641
1745void
1746setsig (int signum = SIGIO)
1747 PROTOTYPE: ;$
1748 CODE:
1749{
1750 if (block_sig_level)
1751 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1752
1753 LOCK (reslock);
1754 main_tid = pthread_self ();
1755 main_sig = signum;
1756 UNLOCK (reslock);
1757
1758 if (main_sig && npending)
1759 pthread_kill (main_tid, main_sig);
1760}
1761
1762void
1763aio_block (SV *cb)
1764 PROTOTYPE: &
1765 PPCODE:
1766{
1767 int count;
1768
1769 block_sig ();
1770 PUSHMARK (SP);
1771 PUTBACK;
1772 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1773 SPAGAIN;
1774 unblock_sig ();
1775
1776 if (SvTRUE (ERRSV))
1777 croak (0);
1778
1779 XSRETURN (count);
1780}
1781
1782int 1642int
1783nreqs() 1643nreqs ()
1784 PROTOTYPE:
1785 CODE: 1644 CODE:
1786 RETVAL = nreqs; 1645 RETVAL = eio_nreqs ();
1787 OUTPUT: 1646 OUTPUT:
1788 RETVAL 1647 RETVAL
1789 1648
1790int 1649int
1791nready() 1650nready ()
1792 PROTOTYPE:
1793 CODE: 1651 CODE:
1794 RETVAL = get_nready (); 1652 RETVAL = eio_nready ();
1795 OUTPUT: 1653 OUTPUT:
1796 RETVAL 1654 RETVAL
1797 1655
1798int 1656int
1799npending() 1657npending ()
1800 PROTOTYPE:
1801 CODE: 1658 CODE:
1802 RETVAL = get_npending (); 1659 RETVAL = eio_npending ();
1803 OUTPUT: 1660 OUTPUT:
1804 RETVAL 1661 RETVAL
1805 1662
1806int 1663int
1807nthreads() 1664nthreads ()
1808 PROTOTYPE:
1809 CODE: 1665 CODE:
1810 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1666 RETVAL = eio_nthreads ();
1811 RETVAL = started;
1812 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1813 OUTPUT: 1667 OUTPUT:
1814 RETVAL 1668 RETVAL
1815 1669
1670int
1671fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1672 CODE:
1673 RETVAL = posix_fadvise (fh, offset, length, advice);
1674 OUTPUT:
1675 RETVAL
1676
1677IV
1678sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1679 CODE:
1680 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1681 OUTPUT:
1682 RETVAL
1683
1684void
1685mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1686 PPCODE:
1687 sv_unmagic (scalar, MMAP_MAGIC);
1688{
1689 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1690 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1691 if (addr == (void *)-1)
1692 XSRETURN_NO;
1693
1694 sv_force_normal (scalar);
1695
1696 /* we store the length in mg_obj, as namlen is I32 :/ */
1697 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1698 ->mg_obj = (SV *)length;
1699
1700 SvUPGRADE (scalar, SVt_PV); /* nop... */
1701
1702 if (!(prot & PROT_WRITE))
1703 SvREADONLY_on (scalar);
1704
1705 if (SvLEN (scalar))
1706 Safefree (SvPVX (scalar));
1707
1708 SvPVX (scalar) = (char *)addr;
1709 SvCUR_set (scalar, length);
1710 SvLEN_set (scalar, 0);
1711 SvPOK_only (scalar);
1712
1713 XSRETURN_YES;
1714}
1715
1716void
1717munmap (SV *scalar)
1718 CODE:
1719 sv_unmagic (scalar, MMAP_MAGIC);
1720
1721int
1722madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1723 ALIAS:
1724 mprotect = 1
1725 CODE:
1726{
1727 STRLEN svlen;
1728 void *addr = SvPVbyte (scalar, svlen);
1729 size_t len = SvUV (length);
1730
1731 if (offset < 0)
1732 offset += svlen;
1733
1734 if (offset < 0 || offset > svlen)
1735 croak ("offset outside of scalar");
1736
1737 if (!SvOK (length) || len + offset > svlen)
1738 len = svlen - offset;
1739
1740 addr = (void *)(((intptr_t)addr) + offset);
1741 eio_page_align (&addr, &len);
1742
1743 switch (ix)
1744 {
1745 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1746 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1747 }
1748}
1749 OUTPUT:
1750 RETVAL
1751
1752int
1753munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1754 CODE:
1755{
1756 STRLEN svlen;
1757 void *addr = SvPVbyte (scalar, svlen);
1758 size_t len = SvUV (length);
1759
1760 if (offset < 0)
1761 offset += svlen;
1762
1763 if (offset < 0 || offset > svlen)
1764 croak ("offset outside of scalar");
1765
1766 if (!SvOK (length) || len + offset > svlen)
1767 len = svlen - offset;
1768
1769 addr = (void *)(((intptr_t)addr) + offset);
1770 eio_page_align (&addr, &len);
1771#if _POSIX_MEMLOCK_RANGE
1772 RETVAL = munlock (addr, len);
1773#else
1774 RETVAL = ((errno = ENOSYS), -1);
1775#endif
1776}
1777 OUTPUT:
1778 RETVAL
1779
1780int
1781munlockall ()
1782 CODE:
1783#if _POSIX_MEMLOCK
1784 munlockall ();
1785#else
1786 RETVAL = -1;
1787 errno = ENOSYS;
1788#endif
1789 OUTPUT:
1790 RETVAL
1791
1792void _on_next_submit (SV *cb)
1793 CODE:
1794 SvREFCNT_dec (on_next_submit);
1795 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1796
1816PROTOTYPES: DISABLE 1797PROTOTYPES: DISABLE
1798
1799MODULE = IO::AIO PACKAGE = IO::AIO::WD
1800
1801BOOT:
1802{
1803 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1804 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1805}
1806
1807void
1808DESTROY (SV *self)
1809 CODE:
1810{
1811 aio_wd wd = SvAIO_WD (self);
1812#if HAVE_AT
1813 {
1814 SV *callback = &PL_sv_undef;
1815 dREQ; /* clobbers next_pri :/ */
1816 next_pri = req->pri; /* restore next_pri */
1817 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1818 req->type = EIO_WD_CLOSE;
1819 req->wd = wd;
1820 REQ_SEND;
1821 }
1822#else
1823 eio_wd_close_sync (wd);
1824#endif
1825}
1817 1826
1818MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1827MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1819 1828
1820void 1829void
1821cancel (aio_req_ornot req) 1830cancel (aio_req_ornot req)
1822 CODE: 1831 CODE:
1823 req_cancel (req); 1832 eio_cancel (req);
1824 1833
1825void 1834void
1826cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1835cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1827 CODE: 1836 PPCODE:
1837{
1838 if (GIMME_V != G_VOID)
1839 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1840
1841 if (items > 1)
1842 {
1843 SV *cb_cv =get_cb (callback);
1844
1828 SvREFCNT_dec (req->callback); 1845 SvREFCNT_dec (req->callback);
1829 req->callback = newSVsv (callback); 1846 req->callback = SvREFCNT_inc (cb_cv);
1847 }
1848}
1830 1849
1831MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1850MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1832 1851
1833void 1852void
1834add (aio_req grp, ...) 1853add (aio_req grp, ...)
1835 PPCODE: 1854 PPCODE:
1836{ 1855{
1837 int i; 1856 int i;
1838 aio_req req;
1839
1840 if (main_sig && !block_sig_level)
1841 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1842 1857
1843 if (grp->int1 == 2) 1858 if (grp->int1 == 2)
1844 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1859 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1845 1860
1846 for (i = 1; i < items; ++i ) 1861 for (i = 1; i < items; ++i )
1847 { 1862 {
1863 aio_req req;
1864
1848 if (GIMME_V != G_VOID) 1865 if (GIMME_V != G_VOID)
1849 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1866 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1850 1867
1851 req = SvAIO_REQ (ST (i)); 1868 req = SvAIO_REQ (ST (i));
1852 1869
1853 if (req) 1870 if (req)
1854 { 1871 eio_grp_add (grp, req);
1855 ++grp->size;
1856 req->grp = grp;
1857
1858 req->grp_prev = 0;
1859 req->grp_next = grp->grp_first;
1860
1861 if (grp->grp_first)
1862 grp->grp_first->grp_prev = req;
1863
1864 grp->grp_first = req;
1865 }
1866 } 1872 }
1867} 1873}
1868 1874
1869void 1875void
1870cancel_subs (aio_req_ornot req) 1876cancel_subs (aio_req_ornot req)
… …
1879 AV *av; 1885 AV *av;
1880 1886
1881 grp->errorno = errno; 1887 grp->errorno = errno;
1882 1888
1883 av = newAV (); 1889 av = newAV ();
1890 av_extend (av, items - 1);
1884 1891
1885 for (i = 1; i < items; ++i ) 1892 for (i = 1; i < items; ++i )
1886 av_push (av, newSVsv (ST (i))); 1893 av_push (av, newSVsv (ST (i)));
1887 1894
1888 SvREFCNT_dec (grp->sv1); 1895 SvREFCNT_dec (grp->sv1);
… …
1895 grp->errorno = errorno; 1902 grp->errorno = errorno;
1896 1903
1897void 1904void
1898limit (aio_req grp, int limit) 1905limit (aio_req grp, int limit)
1899 CODE: 1906 CODE:
1900 grp->int2 = limit; 1907 eio_grp_limit (grp, limit);
1901 aio_grp_feed (grp);
1902 1908
1903void 1909void
1904feed (aio_req grp, SV *callback=&PL_sv_undef) 1910feed (aio_req grp, SV *callback=&PL_sv_undef)
1905 CODE: 1911 CODE:
1906{ 1912{
1907 SvREFCNT_dec (grp->sv2); 1913 SvREFCNT_dec (grp->sv2);
1908 grp->sv2 = newSVsv (callback); 1914 grp->sv2 = newSVsv (callback);
1915 grp->feed = aio_grp_feed;
1909 1916
1910 if (grp->int2 <= 0) 1917 if (grp->int2 <= 0)
1911 grp->int2 = 2; 1918 grp->int2 = 2;
1912 1919
1913 aio_grp_feed (grp); 1920 eio_grp_limit (grp, grp->int2);
1914} 1921}
1915 1922

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