ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.91 by root, Wed Nov 8 01:57:43 2006 UTC vs.
Revision 1.199 by root, Thu Sep 29 09:47:13 2011 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
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# 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#else
68
40# include <sys/socket.h> 69 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
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/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
43# else 295# else
44# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 297# endif
46#endif 298#endif
47 299#ifndef MAP_HUGETLB
48/* number of seconds after which idle threads exit */ 300# define MAP_HUGETLB 0
49#define IDLE_TIMEOUT 10
50
51/* used for struct dirent, AIX doesn't provide it */
52#ifndef NAME_MAX
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
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 301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
79#endif 304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
80 314
81/* buffer size for various temporary buffers */ 315#ifndef makedev
82#define AIO_BUFSIZE 65536 316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
83 324
84#define dBUF \ 325#ifndef PAGESIZE
85 char *aio_buf; \ 326# define PAGESIZE sysconf (_SC_PAGESIZE)
86 LOCK (wrklock); \ 327#endif
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 */
93 328
94enum { 329enum {
95 REQ_QUIT, 330 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}; 331};
107 332
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; 333typedef eio_req *aio_req;
142typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
143 336
144enum { 337static SV *on_next_submit;
145 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
146 PRI_MAX = 4, 339static int max_outstanding;
147 340
148 DEFAULT_PRI = 0, 341static s_epipe respipe;
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152 342
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); 343static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
328 345
346static void want_poll (void)
347{
348 /* write a dummy byte to the pipe so fh becomes ready */
349 s_epipe_signal (&respipe);
350}
351
352static void done_poll (void)
353{
354 /* read any signals sent by the worker threads */
355 s_epipe_drain (&respipe);
356}
357
329/* must be called at most once */ 358/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 359static SV *req_sv (aio_req req, HV *stash)
331{ 360{
332 if (!req->self) 361 if (!req->self)
333 { 362 {
334 req->self = (SV *)newHV (); 363 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 365 }
337 366
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 367 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
368}
369
370static SV *
371newSVaio_wd (aio_wd wd)
372{
373 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
339} 374}
340 375
341static aio_req SvAIO_REQ (SV *sv) 376static aio_req SvAIO_REQ (SV *sv)
342{ 377{
343 MAGIC *mg; 378 MAGIC *mg;
344 379
345 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 380 if (!SvROK (sv)
381 || (SvSTASH (SvRV (sv)) != aio_grp_stash
382 && SvSTASH (SvRV (sv)) != aio_req_stash
383 && !sv_derived_from (sv, "IO::AIO::REQ")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 384 croak ("object of class IO::AIO::REQ expected");
347 385
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 386 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 387
350 return mg ? (aio_req)mg->mg_ptr : 0; 388 return mg ? (aio_req)mg->mg_ptr : 0;
351} 389}
352 390
391static aio_wd SvAIO_WD (SV *sv)
392{
393 if (!SvROK (sv)
394 || SvSTASH (SvRV (sv)) != aio_wd_stash
395 || SvTYPE (SvRV (sv)) != SVt_PVMG)
396 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
397
398 return (aio_wd)(long)SvIVX (SvRV (sv));
399}
400
353static void aio_grp_feed (aio_req grp) 401static void aio_grp_feed (aio_req grp)
354{ 402{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 403 if (grp->sv2 && SvOK (grp->sv2))
356 { 404 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 405 dSP;
362 406
363 ENTER; 407 ENTER;
364 SAVETMPS; 408 SAVETMPS;
365 PUSHMARK (SP); 409 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 410 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 411 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 412 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 413 SPAGAIN;
370 FREETMPS; 414 FREETMPS;
371 LEAVE; 415 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 } 416 }
382} 417}
383 418
384static void aio_grp_dec (aio_req grp) 419static void req_submit (eio_req *req)
385{ 420{
386 --grp->size; 421 eio_submit (req);
387 422
388 /* call feeder, if applicable */ 423 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 424 {
394 req_invoke (grp); 425 dSP;
395 req_free (grp); 426 SV *cb = sv_2mortal (on_next_submit);
427
428 on_next_submit = 0;
429
430 PUSHMARK (SP);
431 PUTBACK;
432 call_sv (cb, G_DISCARD | G_EVAL);
396 } 433 }
397} 434}
398 435
399static void req_invoke (aio_req req) 436static int req_invoke (eio_req *req)
400{ 437{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 438 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 439 SvREADONLY_off (req->sv2);
405 440
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 441 if (!EIO_CANCELLED (req) && req->callback)
407 { 442 {
443 dSP;
444 static SV *sv_result_cache; /* caches the result integer SV */
445 SV *sv_result;
446
408 ENTER; 447 ENTER;
409 SAVETMPS; 448 SAVETMPS;
410 PUSHMARK (SP); 449 PUSHMARK (SP);
411 EXTEND (SP, 1); 450 EXTEND (SP, 1);
412 451
452 /* do not recreate the result IV from scratch each time */
453 if (expect_true (sv_result_cache))
454 {
455 sv_result = sv_result_cache; sv_result_cache = 0;
456 SvIV_set (sv_result, req->result);
457 SvIOK_only (sv_result);
458 }
459 else
460 {
461 sv_result = newSViv (req->result);
462 SvREADONLY_on (sv_result);
463 }
464
413 switch (req->type) 465 switch (req->type)
414 { 466 {
467 case EIO_WD_OPEN:
468 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
469 break;
470
415 case REQ_READDIR: 471 case EIO_READDIR:
416 { 472 {
417 SV *rv = &PL_sv_undef; 473 SV *rv = &PL_sv_undef;
418 474
419 if (req->result >= 0) 475 if (req->result >= 0)
420 { 476 {
421 int i; 477 int i;
422 char *buf = req->ptr2; 478 char *names = (char *)req->ptr2;
479 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 480 AV *av = newAV ();
424 481
425 av_extend (av, req->result - 1); 482 av_extend (av, req->result - 1);
426 483
427 for (i = 0; i < req->result; ++i) 484 for (i = 0; i < req->result; ++i)
428 { 485 {
429 SV *sv = newSVpv (buf, 0); 486 if (req->int1 & EIO_READDIR_DENTS)
487 {
488 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 489
490 if (req->int1 & EIO_READDIR_CUSTOM2)
491 {
492 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
493 AV *avent = newAV ();
494
495 av_extend (avent, 2);
496
497 if (!sv_type [ent->type])
498 {
499 sv_type [ent->type] = newSViv (ent->type);
500 SvREADONLY_on (sv_type [ent->type]);
501 }
502
503 av_store (avent, 0, namesv);
504 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
505 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
506
507 av_store (av, i, newRV_noinc ((SV *)avent));
508 }
509 else
431 av_store (av, i, sv); 510 av_store (av, i, namesv);
511
512 ++ent;
513 }
514 else
515 {
516 SV *name = newSVpv (names, 0);
517 av_store (av, i, name);
432 buf += SvCUR (sv) + 1; 518 names += SvCUR (name) + 1;
519 }
433 } 520 }
434 521
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 522 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 523 }
437 524
438 PUSHs (rv); 525 PUSHs (rv);
526
527 if (req->int1 & EIO_READDIR_CUSTOM1)
528 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
439 } 529 }
440 break; 530 break;
441 531
442 case REQ_OPEN: 532 case EIO_OPEN:
443 { 533 {
444 /* convert fd to fh */ 534 /* convert fd to fh */
445 SV *fh; 535 SV *fh = &PL_sv_undef;
446 536
447 PUSHs (sv_2mortal (newSViv (req->result))); 537 if (req->result >= 0)
448 PUTBACK; 538 {
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 539 GV *gv = (GV *)sv_newmortal ();
450 SPAGAIN; 540 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
541 char sym [64];
542 int symlen;
543
544 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
545 gv_init (gv, aio_stash, sym, symlen, 0);
451 546
452 fh = SvREFCNT_inc (POPs); 547 symlen = snprintf (
548 sym,
549 sizeof (sym),
550 "%s&=%d",
551 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
552 (int)req->result
553 );
453 554
555 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
556 fh = (SV *)gv;
557 }
558
454 PUSHMARK (SP); 559 PUSHs (fh);
455 XPUSHs (sv_2mortal (fh));
456 } 560 }
457 break; 561 break;
458 562
563 case EIO_STATVFS:
564 case EIO_FSTATVFS:
565 {
566 SV *rv = &PL_sv_undef;
567
568#ifndef _WIN32
569 if (req->result >= 0)
570 {
571 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
572 HV *hv = newHV ();
573
574 rv = sv_2mortal (newRV_noinc ((SV *)hv));
575
576 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
577 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
578 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
579 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
580 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
581 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
582 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
583 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
584 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
585 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
586 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
587 }
588#endif
589
590 PUSHs (rv);
591 }
592
593 break;
594
459 case REQ_GROUP: 595 case EIO_GROUP:
460 req->int1 = 2; /* mark group as finished */ 596 req->int1 = 2; /* mark group as finished */
461 597
462 if (req->sv1) 598 if (req->sv1)
463 { 599 {
464 int i; 600 int i;
… …
468 for (i = 0; i <= AvFILL (av); ++i) 604 for (i = 0; i <= AvFILL (av); ++i)
469 PUSHs (*av_fetch (av, i, 0)); 605 PUSHs (*av_fetch (av, i, 0));
470 } 606 }
471 break; 607 break;
472 608
473 case REQ_NOP: 609 case EIO_NOP:
474 case REQ_BUSY: 610 case EIO_BUSY:
475 break; 611 break;
476 612
477 case REQ_READLINK: 613 case EIO_READLINK:
614 case EIO_REALPATH:
478 if (req->result > 0) 615 if (req->result > 0)
479 { 616 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480 SvCUR_set (req->sv1, req->result);
481 *SvEND (req->sv1) = 0;
482 PUSHs (req->sv1);
483 }
484 break; 617 break;
485 618
486 case REQ_STAT: 619 case EIO_STAT:
487 case REQ_LSTAT: 620 case EIO_LSTAT:
488 case REQ_FSTAT: 621 case EIO_FSTAT:
489 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 622 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
623
490 PL_laststatval = req->result; 624 if (!(PL_laststatval = req->result))
625 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
491 PL_statcache = *(Stat_t *)(req->ptr2); 626 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
492 PUSHs (sv_2mortal (newSViv (req->result))); 627
628 PUSHs (sv_result);
493 break; 629 break;
494 630
495 case REQ_READ: 631 case EIO_READ:
632 {
496 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 633 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
497 *SvEND (req->sv1) = 0; 634 *SvEND (req->sv2) = 0;
498 PUSHs (sv_2mortal (newSViv (req->result))); 635 SvPOK_only (req->sv2);
636 SvSETMAGIC (req->sv2);
637 PUSHs (sv_result);
638 }
499 break; 639 break;
500 640
641 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
642 if (req->result > 0)
643 SvIV_set (sv_result, 0);
644 /* FALLTHROUGH */
645
501 default: 646 default:
502 PUSHs (sv_2mortal (newSViv (req->result))); 647 PUSHs (sv_result);
503 break; 648 break;
504 } 649 }
505 650
506 errno = req->errorno; 651 errno = req->errorno;
507 652
508 PUTBACK; 653 PUTBACK;
509 call_sv (req->callback, G_VOID | G_EVAL); 654 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
510 SPAGAIN; 655 SPAGAIN;
656
657 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
658 SvREFCNT_dec (sv_result);
659 else
660 sv_result_cache = sv_result;
511 661
512 FREETMPS; 662 FREETMPS;
513 LEAVE; 663 LEAVE;
664
665 PUTBACK;
514 } 666 }
515 667
516 if (req->grp) 668 return !!SvTRUE (ERRSV);
517 {
518 aio_req grp = req->grp;
519
520 /* unlink request */
521 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
522 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
523
524 if (grp->grp_first == req)
525 grp->grp_first = req->grp_next;
526
527 aio_grp_dec (grp);
528 }
529
530 if (SvTRUE (ERRSV))
531 {
532 req_free (req);
533 croak (0);
534 }
535} 669}
536 670
537static void req_free (aio_req req) 671static void req_destroy (aio_req req)
538{ 672{
539 if (req->self) 673 if (req->self)
540 { 674 {
541 sv_unmagic (req->self, PERL_MAGIC_ext); 675 sv_unmagic (req->self, PERL_MAGIC_ext);
542 SvREFCNT_dec (req->self); 676 SvREFCNT_dec (req->self);
543 } 677 }
544 678
545 SvREFCNT_dec (req->fh);
546 SvREFCNT_dec (req->sv1); 679 SvREFCNT_dec (req->sv1);
547 SvREFCNT_dec (req->sv2); 680 SvREFCNT_dec (req->sv2);
681 SvREFCNT_dec (req->sv3);
682 SvREFCNT_dec (req->sv4);
548 SvREFCNT_dec (req->callback); 683 SvREFCNT_dec (req->callback);
549 684
550 if (req->flags & FLAG_PTR2_FREE)
551 free (req->ptr2);
552
553 Safefree (req); 685 Safefree (req);
554} 686}
555 687
556static void req_cancel_subs (aio_req grp) 688static void req_cancel_subs (aio_req grp)
557{ 689{
558 aio_req sub;
559
560 if (grp->type != REQ_GROUP) 690 if (grp->type != EIO_GROUP)
561 return; 691 return;
562 692
563 SvREFCNT_dec (grp->sv2); 693 SvREFCNT_dec (grp->sv2);
564 grp->sv2 = 0; 694 grp->sv2 = 0;
565 695
566 for (sub = grp->grp_first; sub; sub = sub->grp_next) 696 eio_grp_cancel (grp);
567 req_cancel (sub);
568} 697}
569 698
570static void req_cancel (aio_req req) 699static void create_respipe (void)
571{ 700{
572 req->flags |= FLAG_CANCELLED; 701 if (s_epipe_renew (&respipe))
573 702 croak ("IO::AIO: unable to initialize result pipe");
574 req_cancel_subs (req);
575} 703}
576 704
577static void *aio_proc(void *arg);
578
579static void start_thread (void)
580{
581 sigset_t fullsigset, oldsigset;
582 pthread_attr_t attr;
583
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 pthread_attr_init (&attr);
590 pthread_attr_setstacksize (&attr, STACKSIZE);
591 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592#ifdef PTHREAD_SCOPE_PROCESS
593 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594#endif
595
596 sigfillset (&fullsigset);
597
598 LOCK (wrklock);
599 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600
601 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
602 {
603 wrk->prev = &wrk_first;
604 wrk->next = wrk_first.next;
605 wrk_first.next->prev = wrk;
606 wrk_first.next = wrk;
607 ++started;
608 }
609 else
610 free (wrk);
611
612 sigprocmask (SIG_SETMASK, &oldsigset, 0);
613 UNLOCK (wrklock);
614}
615
616static void maybe_start_thread ()
617{
618 if (get_nthreads () >= wanted)
619 return;
620
621 /* todo: maybe use idle here, but might be less exact */
622 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
623 return;
624
625 start_thread ();
626}
627
628static void req_send (aio_req req)
629{
630 ++nreqs;
631
632 LOCK (reqlock);
633 ++nready;
634 reqq_push (&req_queue, req);
635 pthread_cond_signal (&reqwait);
636 UNLOCK (reqlock);
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 pthread_cond_signal (&reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait () 705static void poll_wait (void)
683{ 706{
684 fd_set rfd;
685
686 while (nreqs) 707 while (eio_nreqs ())
687 { 708 {
688 int size; 709 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 710
711 X_LOCK (reslock);
690 size = res_queue.size; 712 size = res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 713 X_UNLOCK (reslock);
692 714
693 if (size) 715 if (size)
694 return; 716 return;
695 717
696 maybe_start_thread (); 718 etp_maybe_start_thread ();
697 719
698 FD_ZERO(&rfd); 720 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 721 }
703} 722}
704 723
705static int poll_cb () 724static int poll_cb (void)
706{ 725{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 for (;;) 726 for (;;)
718 { 727 {
719 for (;;) 728 int res = eio_poll ();
720 {
721 maybe_start_thread ();
722 729
723 LOCK (reslock); 730 if (res > 0)
724 req = reqq_shift (&res_queue);
725
726 if (req)
727 {
728 --npending;
729
730 if (!res_queue.size)
731 {
732 /* read any signals sent by the worker threads */
733 char buf [32];
734 while (read (respipe [0], buf, 32) == 32)
735 ;
736 }
737 }
738
739 UNLOCK (reslock);
740
741 if (!req)
742 break;
743
744 --nreqs;
745
746 if (req->type == REQ_GROUP && req->size)
747 {
748 req->int1 = 1; /* mark request as delayed */
749 continue;
750 }
751 else
752 {
753 req_invoke (req);
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 }
771
772 if (nreqs <= max_outstanding)
773 break; 731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
774 735
775 poll_wait (); 736 poll_wait ();
776
777 ++maxreqs;
778 } 737 }
779
780 return count;
781} 738}
782 739
783static void create_pipe () 740static void ecb_cold
741reinit (void)
784{ 742{
785 if (pipe (respipe)) 743 create_respipe ();
786 croak ("unable to initialize result pipe");
787 744
788 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 745 if (eio_init (want_poll, done_poll) < 0)
789 croak ("cannot set result pipe to nonblocking mode"); 746 croak ("IO::AIO: unable to initialise eio library");
790
791 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792 croak ("cannot set result pipe to nonblocking mode");
793} 747}
794 748
795/*****************************************************************************/ 749/*****************************************************************************/
796/* work around various missing functions */
797 750
798#if !HAVE_PREADWRITE 751#if !_POSIX_MAPPED_FILES
799# define pread aio_pread 752# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
800# define pwrite aio_pwrite 753# define munmap(addr,length) (errno = ENOSYS, -1)
801
802/*
803 * make our pread/pwrite safe against themselves, but not against
804 * normal read/write by using a mutex. slows down execution a lot,
805 * but that's your problem, not mine.
806 */
807static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
808
809static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810{
811 ssize_t res;
812 off_t ooffset;
813
814 LOCK (preadwritelock);
815 ooffset = lseek (fd, 0, SEEK_CUR);
816 lseek (fd, offset, SEEK_SET);
817 res = read (fd, buf, count);
818 lseek (fd, ooffset, SEEK_SET);
819 UNLOCK (preadwritelock);
820
821 return res;
822}
823
824static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
825{
826 ssize_t res;
827 off_t ooffset;
828
829 LOCK (preadwritelock);
830 ooffset = lseek (fd, 0, SEEK_CUR);
831 lseek (fd, offset, SEEK_SET);
832 res = write (fd, buf, count);
833 lseek (fd, offset, SEEK_SET);
834 UNLOCK (preadwritelock);
835
836 return res;
837}
838#endif
839
840#if !HAVE_FDATASYNC
841# define fdatasync fsync
842#endif
843
844#if !HAVE_READAHEAD
845# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846
847static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
848{
849 dBUF;
850
851 while (count > 0)
852 {
853 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
854
855 pread (fd, aio_buf, len, offset);
856 offset += len;
857 count -= len;
858 }
859
860 errno = 0;
861}
862
863#endif
864
865#if !HAVE_READDIR_R
866# define readdir_r aio_readdir_r
867
868static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
869
870static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
871{
872 struct dirent *e;
873 int errorno;
874
875 LOCK (readdirlock);
876
877 e = readdir (dirp);
878 errorno = errno;
879
880 if (e)
881 {
882 *res = ent;
883 strcpy (ent->d_name, e->d_name);
884 }
885 else
886 *res = 0;
887
888 UNLOCK (readdirlock);
889
890 errno = errorno;
891 return e ? 0 : -1;
892}
893#endif
894
895/* sendfile always needs emulation */
896static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
897{
898 ssize_t res;
899
900 if (!count)
901 return 0;
902
903#if HAVE_SENDFILE
904# if __linux
905 res = sendfile (ofd, ifd, &offset, count);
906
907# elif __freebsd
908 /*
909 * Of course, the freebsd sendfile is a dire hack with no thoughts
910 * wasted on making it similar to other I/O functions.
911 */
912 {
913 off_t sbytes;
914 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
915
916 if (res < 0 && sbytes)
917 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
918 res = sbytes;
919 }
920
921# elif __hpux
922 res = sendfile (ofd, ifd, offset, count, 0, 0);
923
924# elif __solaris
925 {
926 struct sendfilevec vec;
927 size_t sbytes;
928
929 vec.sfv_fd = ifd;
930 vec.sfv_flag = 0;
931 vec.sfv_off = offset;
932 vec.sfv_len = count;
933
934 res = sendfilev (ofd, &vec, 1, &sbytes);
935
936 if (res < 0 && sbytes)
937 res = sbytes;
938 }
939
940# endif 754#endif
941#else
942 res = -1;
943 errno = ENOSYS;
944#endif
945 755
946 if (res < 0 756#if !_POSIX_MEMORY_PROTECTION
947 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 757# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
948#if __solaris 758# define PROT_NONE 0
949 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
950#endif 763#endif
951 )
952 )
953 {
954 /* emulate sendfile. this is a major pain in the ass */
955 dBUF;
956 764
957 res = 0; 765#define MMAP_MAGIC PERL_MAGIC_ext
958 766
959 while (count) 767static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
960 { 768{
961 ssize_t cnt; 769 int old_errno = errno;
962 770 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
963 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 771 errno = old_errno;
964 772
965 if (cnt <= 0) 773 mg->mg_obj = 0; /* just in case */
966 {
967 if (cnt && !res) res = -1;
968 break;
969 }
970 774
971 cnt = write (ofd, aio_buf, cnt); 775 SvREADONLY_off (sv);
972 776
973 if (cnt <= 0) 777 if (SvPVX (sv) != mg->mg_ptr)
974 { 778 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
975 if (cnt && !res) res = -1;
976 break;
977 }
978 779
979 offset += cnt; 780 SvCUR_set (sv, 0);
980 res += cnt; 781 SvPVX (sv) = 0;
981 count -= cnt; 782 SvOK_off (sv);
982 }
983 }
984 783
985 return res; 784 return 0;
986} 785}
987 786
988/* read a full directory */ 787static MGVTBL mmap_vtbl = {
989static void scandir_ (aio_req req, worker *self) 788 0, 0, 0, 0, mmap_free
990{ 789};
991 DIR *dirp;
992 union
993 {
994 struct dirent d;
995 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
996 } *u;
997 struct dirent *entp;
998 char *name, *names;
999 int memlen = 4096;
1000 int memofs = 0;
1001 int res = 0;
1002 int errorno;
1003
1004 LOCK (wrklock);
1005 self->dirp = dirp = opendir (req->ptr1);
1006 self->dbuf = u = malloc (sizeof (*u));
1007 req->flags |= FLAG_PTR2_FREE;
1008 req->ptr2 = names = malloc (memlen);
1009 UNLOCK (wrklock);
1010
1011 if (dirp && u && names)
1012 for (;;)
1013 {
1014 errno = 0;
1015 readdir_r (dirp, &u->d, &entp);
1016
1017 if (!entp)
1018 break;
1019
1020 name = entp->d_name;
1021
1022 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1023 {
1024 int len = strlen (name) + 1;
1025
1026 res++;
1027
1028 while (memofs + len > memlen)
1029 {
1030 memlen *= 2;
1031 LOCK (wrklock);
1032 req->ptr2 = names = realloc (names, memlen);
1033 UNLOCK (wrklock);
1034
1035 if (!names)
1036 break;
1037 }
1038
1039 memcpy (names + memofs, name, len);
1040 memofs += len;
1041 }
1042 }
1043
1044 if (errno)
1045 res = -1;
1046
1047 req->result = res;
1048}
1049 790
1050/*****************************************************************************/ 791/*****************************************************************************/
1051 792
1052static void *aio_proc (void *thr_arg) 793static SV * get_cb (SV *cb_sv)
1053{ 794{
1054 aio_req req; 795 SvGETMAGIC (cb_sv);
1055 struct timespec ts; 796 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1056 worker *self = (worker *)thr_arg;
1057
1058 /* try to distribute timeouts somewhat evenly */
1059 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1060 * (1000000000UL / 1024UL);
1061
1062 for (;;)
1063 {
1064 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065
1066 LOCK (reqlock);
1067
1068 for (;;)
1069 {
1070 self->req = req = reqq_shift (&req_queue);
1071
1072 if (req)
1073 break;
1074
1075 ++idle;
1076
1077 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1078 == ETIMEDOUT)
1079 {
1080 if (idle > max_idle)
1081 {
1082 --idle;
1083 UNLOCK (reqlock);
1084 LOCK (wrklock);
1085 --started;
1086 UNLOCK (wrklock);
1087 goto quit;
1088 }
1089
1090 /* we are allowed to idle, so do so without any timeout */
1091 pthread_cond_wait (&reqwait, &reqlock);
1092 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093 }
1094
1095 --idle;
1096 }
1097
1098 --nready;
1099
1100 UNLOCK (reqlock);
1101
1102 errno = 0; /* strictly unnecessary */
1103
1104 if (!(req->flags & FLAG_CANCELLED))
1105 switch (req->type)
1106 {
1107 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1108 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1109
1110 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112
1113 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1116
1117 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118 case REQ_CLOSE: req->result = close (req->int1); break;
1119 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1121 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1126
1127 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128 case REQ_FSYNC: req->result = fsync (req->int1); break;
1129 case REQ_READDIR: scandir_ (req, self); break;
1130
1131 case REQ_BUSY:
1132 {
1133 struct timeval tv;
1134
1135 tv.tv_sec = req->int1;
1136 tv.tv_usec = req->int2;
1137
1138 req->result = select (0, 0, 0, 0, &tv);
1139 }
1140
1141 case REQ_GROUP:
1142 case REQ_NOP:
1143 break;
1144
1145 case REQ_QUIT:
1146 goto quit;
1147
1148 default:
1149 req->result = ENOSYS;
1150 break;
1151 }
1152
1153 req->errorno = errno;
1154
1155 LOCK (reslock);
1156
1157 ++npending;
1158
1159 if (!reqq_push (&res_queue, req))
1160 /* write a dummy byte to the pipe so fh becomes ready */
1161 write (respipe [1], &respipe, 1);
1162
1163 self->req = 0;
1164 worker_clear (self);
1165
1166 UNLOCK (reslock);
1167 }
1168
1169quit:
1170 LOCK (wrklock);
1171 worker_free (self);
1172 UNLOCK (wrklock);
1173
1174 return 0;
1175}
1176
1177/*****************************************************************************/
1178
1179static void atfork_prepare (void)
1180{
1181 LOCK (wrklock);
1182 LOCK (reqlock);
1183 LOCK (reslock);
1184#if !HAVE_PREADWRITE
1185 LOCK (preadwritelock);
1186#endif
1187#if !HAVE_READDIR_R
1188 LOCK (readdirlock);
1189#endif
1190}
1191
1192static void atfork_parent (void)
1193{
1194#if !HAVE_READDIR_R
1195 UNLOCK (readdirlock);
1196#endif
1197#if !HAVE_PREADWRITE
1198 UNLOCK (preadwritelock);
1199#endif
1200 UNLOCK (reslock);
1201 UNLOCK (reqlock);
1202 UNLOCK (wrklock);
1203}
1204
1205static void atfork_child (void)
1206{
1207 aio_req prv;
1208
1209 while (prv = reqq_shift (&req_queue))
1210 req_free (prv);
1211
1212 while (prv = reqq_shift (&res_queue))
1213 req_free (prv);
1214
1215 while (wrk_first.next != &wrk_first)
1216 {
1217 worker *wrk = wrk_first.next;
1218
1219 if (wrk->req)
1220 req_free (wrk->req);
1221
1222 worker_clear (wrk);
1223 worker_free (wrk);
1224 }
1225
1226 started = 0;
1227 idle = 0;
1228 nreqs = 0;
1229 nready = 0;
1230 npending = 0;
1231
1232 close (respipe [0]);
1233 close (respipe [1]);
1234 create_pipe ();
1235
1236 atfork_parent ();
1237} 797}
1238 798
1239#define dREQ \ 799#define dREQ \
800 SV *cb_cv; \
1240 aio_req req; \ 801 aio_req req; \
1241 int req_pri = next_pri; \ 802 int req_pri = next_pri; \
1242 next_pri = DEFAULT_PRI + PRI_BIAS; \ 803 next_pri = EIO_PRI_DEFAULT; \
1243 \ 804 \
1244 if (SvOK (callback) && !SvROK (callback)) \ 805 cb_cv = get_cb (callback); \
1245 croak ("callback must be undef or of reference type"); \
1246 \ 806 \
1247 Newz (0, req, 1, aio_cb); \ 807 Newz (0, req, 1, eio_req); \
1248 if (!req) \ 808 if (!req) \
1249 croak ("out of memory during aio_req allocation"); \ 809 croak ("out of memory during eio_req allocation"); \
1250 \ 810 \
1251 req->callback = newSVsv (callback); \ 811 req->callback = SvREFCNT_inc (cb_cv); \
1252 req->pri = req_pri 812 req->pri = req_pri
1253 813
1254#define REQ_SEND \ 814#define REQ_SEND \
815 PUTBACK; \
1255 req_send (req); \ 816 req_submit (req); \
817 SPAGAIN; \
1256 \ 818 \
1257 if (GIMME_V != G_VOID) \ 819 if (GIMME_V != G_VOID) \
1258 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 820 XPUSHs (req_sv (req, aio_req_stash));
1259 821
822static void
823req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
824{
825 if (expect_false (SvROK (path)))
826 {
827 AV *av = (AV *)SvRV (path);
828 SV *wdob;
829
830 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
831 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
832
833 path = AvARRAY (av)[1];
834 wdob = AvARRAY (av)[0];
835
836 if (SvOK (wdob))
837 {
838 *wd = SvAIO_WD (wdob);
839 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 }
841 else
842 *wd = EIO_INVALID_WD;
843 }
844
845 *pathsv = newSVsv (path);
846 *ptr = SvPVbyte_nolen (*pathsv);
847}
848
849static void
850req_set_path1 (aio_req req, SV *path)
851{
852 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
853}
854
855static void
856req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
857{
858 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
859
860 switch (SvTYPE (rv))
861 {
862 case SVt_PVIO:
863 case SVt_PVLV:
864 case SVt_PVGV:
865 req->type = type_fh;
866 req->sv1 = newSVsv (fh_or_path);
867 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
868 break;
869
870 default:
871 req->type = type_path;
872 req_set_path1 (req, fh_or_path);
873 break;
874 }
875
876}
877
1260MODULE = IO::AIO PACKAGE = IO::AIO 878MODULE = IO::AIO PACKAGE = IO::AIO
1261 879
1262PROTOTYPES: ENABLE 880PROTOTYPES: ENABLE
1263 881
1264BOOT: 882BOOT:
1265{ 883{
884 static const struct {
885 const char *name;
886 IV iv;
887 } *civ, const_iv[] = {
888# define const_niv(name, value) { # name, (IV) value },
889# define const_iv(name) { # name, (IV) name },
890# define const_eio(name) { # name, (IV) EIO_ ## name },
891 const_iv (EXDEV)
892 const_iv (ENOSYS)
893 const_iv (O_RDONLY)
894 const_iv (O_WRONLY)
895 const_iv (O_RDWR)
896 const_iv (O_CREAT)
897 const_iv (O_TRUNC)
898 const_iv (O_EXCL)
899 const_iv (O_APPEND)
900
901 const_iv (O_ASYNC)
902 const_iv (O_DIRECT)
903 const_iv (O_NOATIME)
904
905 const_iv (O_CLOEXEC)
906 const_iv (O_NOCTTY)
907 const_iv (O_NOFOLLOW)
908 const_iv (O_NONBLOCK)
909 const_iv (O_EXEC)
910 const_iv (O_SEARCH)
911 const_iv (O_DIRECTORY)
912 const_iv (O_DSYNC)
913 const_iv (O_RSYNC)
914 const_iv (O_SYNC)
915 const_iv (O_TTY_INIT)
916
917 const_iv (S_IFIFO)
918 const_iv (S_IFCHR)
919 const_iv (S_IFBLK)
920 const_iv (S_IFLNK)
921 const_iv (S_IFREG)
922 const_iv (S_IFDIR)
923 const_iv (S_IFWHT)
924 const_iv (S_IFSOCK)
925 const_iv (S_IFMT)
926
927 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
928 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
929 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
930 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
931 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
932 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
933
934 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
935 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
936 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
937 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
938 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
939
940 const_iv (ST_RDONLY)
941 const_iv (ST_NOSUID)
942 const_iv (ST_NODEV)
943 const_iv (ST_NOEXEC)
944 const_iv (ST_SYNCHRONOUS)
945 const_iv (ST_MANDLOCK)
946 const_iv (ST_WRITE)
947 const_iv (ST_APPEND)
948 const_iv (ST_IMMUTABLE)
949 const_iv (ST_NOATIME)
950 const_iv (ST_NODIRATIME)
951 const_iv (ST_RELATIME)
952
953 const_iv (PROT_NONE)
954 const_iv (PROT_EXEC)
955 const_iv (PROT_READ)
956 const_iv (PROT_WRITE)
957
958 /*const_iv (MAP_FIXED)*/
959 const_iv (MAP_PRIVATE)
960 const_iv (MAP_SHARED)
961 const_iv (MAP_ANONYMOUS)
962
963 /* linuxish */
964 const_iv (MAP_HUGETLB)
965 const_iv (MAP_LOCKED)
966 const_iv (MAP_NORESERVE)
967 const_iv (MAP_POPULATE)
968 const_iv (MAP_NONBLOCK)
969
970 const_eio (MCL_FUTURE)
971 const_eio (MCL_CURRENT)
972
973 const_eio (MS_ASYNC)
974 const_eio (MS_INVALIDATE)
975 const_eio (MS_SYNC)
976
977 const_eio (MT_MODIFY)
978
979 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
980 const_eio (SYNC_FILE_RANGE_WRITE)
981 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
982
983 const_eio (FALLOC_FL_KEEP_SIZE)
984
985 const_eio (READDIR_DENTS)
986 const_eio (READDIR_DIRS_FIRST)
987 const_eio (READDIR_STAT_ORDER)
988 const_eio (READDIR_FOUND_UNKNOWN)
989
990 const_eio (DT_UNKNOWN)
991 const_eio (DT_FIFO)
992 const_eio (DT_CHR)
993 const_eio (DT_DIR)
994 const_eio (DT_BLK)
995 const_eio (DT_REG)
996 const_eio (DT_LNK)
997 const_eio (DT_SOCK)
998 const_eio (DT_WHT)
999 };
1000
1266 HV *stash = gv_stashpv ("IO::AIO", 1); 1001 aio_stash = gv_stashpv ("IO::AIO" , 1);
1002 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1003 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1004 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1267 1005
1268 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1006 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1269 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1007 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1270 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1273 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1274 1008
1275 create_pipe (); 1009 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1276 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1277}
1278 1010
1011 reinit ();
1012}
1013
1279void 1014void
1015reinit ()
1016 PROTOTYPE:
1017
1018void
1280max_poll_reqs (int nreqs) 1019max_poll_reqs (unsigned int nreqs)
1281 PROTOTYPE: $ 1020 PROTOTYPE: $
1282 CODE: 1021 CODE:
1283 max_poll_reqs = nreqs; 1022 eio_set_max_poll_reqs (nreqs);
1284 1023
1285void 1024void
1286max_poll_time (double nseconds) 1025max_poll_time (double nseconds)
1287 PROTOTYPE: $ 1026 PROTOTYPE: $
1288 CODE: 1027 CODE:
1289 max_poll_time = nseconds * AIO_TICKS; 1028 eio_set_max_poll_time (nseconds);
1290 1029
1291void 1030void
1292min_parallel (int nthreads) 1031min_parallel (unsigned int nthreads)
1293 PROTOTYPE: $
1294
1295void
1296max_parallel (int nthreads)
1297 PROTOTYPE: $
1298
1299void
1300max_idle (int nthreads)
1301 PROTOTYPE: $ 1032 PROTOTYPE: $
1302 CODE: 1033 CODE:
1303 set_max_idle (nthreads); 1034 eio_set_min_parallel (nthreads);
1304 1035
1305int 1036void
1306max_outstanding (int maxreqs) 1037max_parallel (unsigned int nthreads)
1307 PROTOTYPE: $ 1038 PROTOTYPE: $
1308 CODE: 1039 CODE:
1309 RETVAL = max_outstanding; 1040 eio_set_max_parallel (nthreads);
1041
1042void
1043max_idle (unsigned int nthreads)
1044 PROTOTYPE: $
1045 CODE:
1046 eio_set_max_idle (nthreads);
1047
1048void
1049idle_timeout (unsigned int seconds)
1050 PROTOTYPE: $
1051 CODE:
1052 eio_set_idle_timeout (seconds);
1053
1054void
1055max_outstanding (unsigned int maxreqs)
1056 PROTOTYPE: $
1057 CODE:
1310 max_outstanding = maxreqs; 1058 max_outstanding = maxreqs;
1311 OUTPUT:
1312 RETVAL
1313 1059
1314void 1060void
1315aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1061aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1316 SV8 * pathname
1317 int flags
1318 int mode
1319 SV * callback
1320 PROTOTYPE: $$$;$
1321 PPCODE: 1062 PPCODE:
1322{ 1063{
1323 dREQ; 1064 dREQ;
1324 1065
1066 req->type = EIO_WD_OPEN;
1067 req_set_path1 (req, pathname);
1068
1069 REQ_SEND;
1070}
1071
1072void
1073aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1074 PPCODE:
1075{
1076 dREQ;
1077
1325 req->type = REQ_OPEN; 1078 req->type = EIO_OPEN;
1326 req->sv1 = newSVsv (pathname); 1079 req_set_path1 (req, pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags; 1080 req->int1 = flags;
1329 req->mode = mode; 1081 req->int2 = mode;
1330 1082
1331 REQ_SEND; 1083 REQ_SEND;
1332} 1084}
1333 1085
1334void 1086void
1335aio_close (fh,callback=&PL_sv_undef) 1087aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1336 SV * fh
1337 SV * callback
1338 PROTOTYPE: $;$
1339 ALIAS: 1088 ALIAS:
1340 aio_close = REQ_CLOSE
1341 aio_fsync = REQ_FSYNC 1089 aio_fsync = EIO_FSYNC
1342 aio_fdatasync = REQ_FDATASYNC 1090 aio_fdatasync = EIO_FDATASYNC
1091 aio_syncfs = EIO_SYNCFS
1343 PPCODE: 1092 PPCODE:
1344{ 1093{
1094 int fd = s_fileno_croak (fh, 0);
1345 dREQ; 1095 dREQ;
1346 1096
1347 req->type = ix; 1097 req->type = ix;
1348 req->fh = newSVsv (fh); 1098 req->sv1 = newSVsv (fh);
1349 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1099 req->int1 = fd;
1350 1100
1351 REQ_SEND (req); 1101 REQ_SEND (req);
1352} 1102}
1353 1103
1354void 1104void
1105aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1106 PPCODE:
1107{
1108 int fd = s_fileno_croak (fh, 0);
1109 dREQ;
1110
1111 req->type = EIO_SYNC_FILE_RANGE;
1112 req->sv1 = newSVsv (fh);
1113 req->int1 = fd;
1114 req->offs = offset;
1115 req->size = nbytes;
1116 req->int2 = flags;
1117
1118 REQ_SEND (req);
1119}
1120
1121void
1122aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1123 PPCODE:
1124{
1125 int fd = s_fileno_croak (fh, 0);
1126 dREQ;
1127
1128 req->type = EIO_FALLOCATE;
1129 req->sv1 = newSVsv (fh);
1130 req->int1 = fd;
1131 req->int2 = mode;
1132 req->offs = offset;
1133 req->size = len;
1134
1135 REQ_SEND (req);
1136}
1137
1138void
1139aio_close (SV *fh, SV *callback=&PL_sv_undef)
1140 PPCODE:
1141{
1142 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1143 int fd = s_fileno_croak (fh, 0);
1144 dREQ;
1145
1146 if (expect_false (close_fd < 0))
1147 {
1148 int pipefd [2];
1149
1150 if (
1151#ifdef _WIN32
1152 _pipe (pipefd, 1, _O_BINARY) < 0
1153#else
1154 pipe (pipefd) < 0
1155 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1156#endif
1157 || close (pipefd [1]) < 0
1158 )
1159 abort (); /*D*/
1160
1161 close_fd = pipefd [0];
1162 }
1163
1164 req->type = EIO_DUP2;
1165 req->int1 = close_fd;
1166 req->sv2 = newSVsv (fh);
1167 req->int2 = fd;
1168
1169 REQ_SEND (req);
1170}
1171
1172void
1355aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1173aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1356 SV * fh
1357 UV offset
1358 UV length
1359 SV8 * data
1360 UV dataoffset
1361 SV * callback
1362 ALIAS: 1174 ALIAS:
1363 aio_read = REQ_READ 1175 aio_read = EIO_READ
1364 aio_write = REQ_WRITE 1176 aio_write = EIO_WRITE
1365 PROTOTYPE: $$$$$;$
1366 PPCODE: 1177 PPCODE:
1367{ 1178{
1368 STRLEN svlen; 1179 STRLEN svlen;
1180 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1369 char *svptr = SvPVbyte (data, svlen); 1181 char *svptr = SvPVbyte (data, svlen);
1370 1182 UV len = SvUV (length);
1371 SvUPGRADE (data, SVt_PV);
1372 SvPOK_on (data);
1373 1183
1374 if (dataoffset < 0) 1184 if (dataoffset < 0)
1375 dataoffset += svlen; 1185 dataoffset += svlen;
1376 1186
1377 if (dataoffset < 0 || dataoffset > svlen) 1187 if (dataoffset < 0 || dataoffset > svlen)
1378 croak ("data offset outside of string"); 1188 croak ("dataoffset outside of data scalar");
1379 1189
1380 if (ix == REQ_WRITE) 1190 if (ix == EIO_WRITE)
1381 { 1191 {
1382 /* write: check length and adjust. */ 1192 /* write: check length and adjust. */
1383 if (length < 0 || length + dataoffset > svlen) 1193 if (!SvOK (length) || len + dataoffset > svlen)
1384 length = svlen - dataoffset; 1194 len = svlen - dataoffset;
1385 } 1195 }
1386 else 1196 else
1387 { 1197 {
1388 /* read: grow scalar as necessary */ 1198 /* read: check type and grow scalar as necessary */
1199 SvUPGRADE (data, SVt_PV);
1389 svptr = SvGROW (data, length + dataoffset); 1200 svptr = SvGROW (data, len + dataoffset + 1);
1390 } 1201 }
1391
1392 if (length < 0)
1393 croak ("length must not be negative");
1394 1202
1395 { 1203 {
1396 dREQ; 1204 dREQ;
1397 1205
1398 req->type = ix; 1206 req->type = ix;
1399 req->fh = newSVsv (fh); 1207 req->sv1 = newSVsv (fh);
1400 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1208 req->int1 = fd;
1401 : IoOFP (sv_2io (fh))); 1209 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1402 req->offs = offset;
1403 req->size = length; 1210 req->size = len;
1404 req->sv1 = SvREFCNT_inc (data); 1211 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr1 = (char *)svptr + dataoffset; 1212 req->ptr2 = (char *)svptr + dataoffset;
1406 req->stroffset = dataoffset; 1213 req->stroffset = dataoffset;
1407 1214
1408 if (!SvREADONLY (data)) 1215 if (!SvREADONLY (data))
1409 { 1216 {
1410 SvREADONLY_on (data); 1217 SvREADONLY_on (data);
1411 req->flags |= FLAG_SV1_RO_OFF; 1218 req->flags |= FLAG_SV2_RO_OFF;
1412 } 1219 }
1413 1220
1414 REQ_SEND; 1221 REQ_SEND;
1415 } 1222 }
1416} 1223}
1417 1224
1418void 1225void
1419aio_readlink (path,callback=&PL_sv_undef) 1226aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1420 SV8 * path 1227 ALIAS:
1421 SV * callback 1228 aio_readlink = EIO_READLINK
1422 PROTOTYPE: $$;$ 1229 aio_realpath = EIO_REALPATH
1423 PPCODE: 1230 PPCODE:
1424{ 1231{
1425 SV *data;
1426 dREQ; 1232 dREQ;
1427 1233
1428 data = newSV (NAME_MAX);
1429 SvPOK_on (data);
1430
1431 req->type = REQ_READLINK; 1234 req->type = ix;
1432 req->fh = newSVsv (path); 1235 req_set_path1 (req, pathname);
1433 req->ptr2 = SvPVbyte_nolen (req->fh);
1434 req->sv1 = data;
1435 req->ptr1 = SvPVbyte_nolen (data);
1436 1236
1437 REQ_SEND; 1237 REQ_SEND;
1438} 1238}
1439 1239
1440void 1240void
1441aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1241aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1442 SV * out_fh
1443 SV * in_fh
1444 UV in_offset
1445 UV length
1446 SV * callback
1447 PROTOTYPE: $$$$;$
1448 PPCODE: 1242 PPCODE:
1449{ 1243{
1244 int ifd = s_fileno_croak (in_fh , 0);
1245 int ofd = s_fileno_croak (out_fh, 1);
1450 dREQ; 1246 dREQ;
1451 1247
1452 req->type = REQ_SENDFILE; 1248 req->type = EIO_SENDFILE;
1453 req->fh = newSVsv (out_fh); 1249 req->sv1 = newSVsv (out_fh);
1454 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1250 req->int1 = ofd;
1455 req->sv2 = newSVsv (in_fh); 1251 req->sv2 = newSVsv (in_fh);
1456 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1252 req->int2 = ifd;
1457 req->offs = in_offset; 1253 req->offs = in_offset;
1458 req->size = length; 1254 req->size = length;
1459 1255
1460 REQ_SEND; 1256 REQ_SEND;
1461} 1257}
1462 1258
1463void 1259void
1464aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1260aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1465 SV * fh
1466 UV offset
1467 IV length
1468 SV * callback
1469 PROTOTYPE: $$$;$
1470 PPCODE: 1261 PPCODE:
1471{ 1262{
1263 int fd = s_fileno_croak (fh, 0);
1472 dREQ; 1264 dREQ;
1473 1265
1474 req->type = REQ_READAHEAD; 1266 req->type = EIO_READAHEAD;
1475 req->fh = newSVsv (fh); 1267 req->sv1 = newSVsv (fh);
1476 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1268 req->int1 = fd;
1477 req->offs = offset; 1269 req->offs = offset;
1478 req->size = length; 1270 req->size = length;
1479 1271
1480 REQ_SEND; 1272 REQ_SEND;
1481} 1273}
1482 1274
1483void 1275void
1484aio_stat (fh_or_path,callback=&PL_sv_undef) 1276aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1485 SV8 * fh_or_path
1486 SV * callback
1487 ALIAS: 1277 ALIAS:
1488 aio_stat = REQ_STAT 1278 aio_stat = EIO_STAT
1489 aio_lstat = REQ_LSTAT 1279 aio_lstat = EIO_LSTAT
1280 aio_statvfs = EIO_STATVFS
1490 PPCODE: 1281 PPCODE:
1491{ 1282{
1492 dREQ; 1283 dREQ;
1493 1284
1494 req->ptr2 = malloc (sizeof (Stat_t));
1495 if (!req->ptr2)
1496 {
1497 req_free (req);
1498 croak ("out of memory during aio_stat statdata allocation");
1499 }
1500
1501 req->flags |= FLAG_PTR2_FREE;
1502
1503 if (SvPOK (fh_or_path))
1504 {
1505 req->type = ix;
1506 req->sv1 = newSVsv (fh_or_path); 1285 req->sv1 = newSVsv (fh_or_path);
1507 req->ptr1 = SvPVbyte_nolen (req->sv1); 1286 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1508 }
1509 else
1510 {
1511 req->type = REQ_FSTAT;
1512 req->fh = newSVsv (fh_or_path);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514 }
1515
1516 REQ_SEND; 1287 REQ_SEND;
1517} 1288}
1518 1289
1290UV
1291major (UV dev)
1292 ALIAS:
1293 minor = 1
1294 CODE:
1295 RETVAL = ix ? major (dev) : minor (dev);
1296 OUTPUT:
1297 RETVAL
1298
1299UV
1300makedev (UV maj, UV min)
1301 CODE:
1302 RETVAL = makedev (maj, min);
1303 OUTPUT:
1304 RETVAL
1305
1519void 1306void
1307aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1308 PPCODE:
1309{
1310 dREQ;
1311
1312 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1313 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1314 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1315
1316 REQ_SEND;
1317}
1318
1319void
1320aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1321 PPCODE:
1322{
1323 dREQ;
1324
1325 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1326 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1327
1328 REQ_SEND;
1329}
1330
1331void
1332aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1333 ALIAS:
1334 aio_chmod = EIO_CHMOD
1335 aio_mkdir = EIO_MKDIR
1336 PPCODE:
1337{
1338 dREQ;
1339
1340 req->int2 = mode;
1341 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1342
1343 REQ_SEND;
1344}
1345
1346void
1347aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1348 PPCODE:
1349{
1350 dREQ;
1351
1352 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1353 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1354 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1355
1356 REQ_SEND;
1357}
1358
1359void
1360aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1361 PPCODE:
1362{
1363 dREQ;
1364
1365 req->type = EIO_READDIR;
1366 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1367
1368 if (flags & EIO_READDIR_DENTS)
1369 req->int1 |= EIO_READDIR_CUSTOM2;
1370
1371 req_set_path1 (req, pathname);
1372
1373 REQ_SEND;
1374}
1375
1376void
1520aio_unlink (pathname,callback=&PL_sv_undef) 1377aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1521 SV8 * pathname
1522 SV * callback
1523 ALIAS: 1378 ALIAS:
1524 aio_unlink = REQ_UNLINK 1379 aio_unlink = EIO_UNLINK
1525 aio_rmdir = REQ_RMDIR 1380 aio_rmdir = EIO_RMDIR
1526 aio_readdir = REQ_READDIR 1381 aio_readdir = EIO_READDIR
1527 PPCODE: 1382 PPCODE:
1528{ 1383{
1529 dREQ; 1384 dREQ;
1530 1385
1531 req->type = ix; 1386 req->type = ix;
1532 req->sv1 = newSVsv (pathname); 1387 req_set_path1 (req, pathname);
1533 req->ptr1 = SvPVbyte_nolen (req->sv1);
1534 1388
1535 REQ_SEND; 1389 REQ_SEND;
1536} 1390}
1537 1391
1538void 1392void
1539aio_link (oldpath,newpath,callback=&PL_sv_undef) 1393aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1540 SV8 * oldpath
1541 SV8 * newpath
1542 SV * callback
1543 ALIAS: 1394 ALIAS:
1544 aio_link = REQ_LINK 1395 aio_link = EIO_LINK
1545 aio_symlink = REQ_SYMLINK 1396 aio_symlink = EIO_SYMLINK
1546 aio_rename = REQ_RENAME 1397 aio_rename = EIO_RENAME
1398 PPCODE:
1399{
1400 dREQ;
1401 eio_wd wd2 = 0;
1402
1403 req->type = ix;
1404 req_set_path1 (req, oldpath);
1405 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1406 req->int3 = (long)wd2;
1407
1408 REQ_SEND;
1409}
1410
1411void
1412aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1547 PPCODE: 1413 PPCODE:
1548{ 1414{
1549 dREQ; 1415 dREQ;
1550 1416
1551 req->type = ix; 1417 req->type = EIO_MKNOD;
1552 req->fh = newSVsv (oldpath); 1418 req->int2 = (mode_t)mode;
1553 req->ptr2 = SvPVbyte_nolen (req->fh); 1419 req->offs = dev;
1554 req->sv1 = newSVsv (newpath); 1420 req_set_path1 (req, pathname);
1555 req->ptr1 = SvPVbyte_nolen (req->sv1);
1556 1421
1557 REQ_SEND; 1422 REQ_SEND;
1558} 1423}
1559 1424
1560void 1425void
1561aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1426aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1562 SV8 * pathname 1427 ALIAS:
1563 SV * callback 1428 aio_mtouch = EIO_MTOUCH
1564 UV mode 1429 aio_msync = EIO_MSYNC
1565 UV dev 1430 PPCODE:
1431{
1432 STRLEN svlen;
1433 char *svptr = SvPVbyte (data, svlen);
1434 UV len = SvUV (length);
1435
1436 if (offset < 0)
1437 offset += svlen;
1438
1439 if (offset < 0 || offset > svlen)
1440 croak ("offset outside of scalar");
1441
1442 if (!SvOK (length) || len + offset > svlen)
1443 len = svlen - offset;
1444
1445 {
1446 dREQ;
1447
1448 req->type = ix;
1449 req->sv2 = SvREFCNT_inc (data);
1450 req->ptr2 = (char *)svptr + offset;
1451 req->size = len;
1452 req->int1 = flags;
1453
1454 REQ_SEND;
1455 }
1456}
1457
1458void
1459aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1460 PPCODE:
1461{
1462 STRLEN svlen;
1463 char *svptr = SvPVbyte (data, svlen);
1464 UV len = SvUV (length);
1465
1466 if (offset < 0)
1467 offset += svlen;
1468
1469 if (offset < 0 || offset > svlen)
1470 croak ("offset outside of scalar");
1471
1472 if (!SvOK (length) || len + offset > svlen)
1473 len = svlen - offset;
1474
1475 {
1476 dREQ;
1477
1478 req->type = EIO_MLOCK;
1479 req->sv2 = SvREFCNT_inc (data);
1480 req->ptr2 = (char *)svptr + offset;
1481 req->size = len;
1482
1483 REQ_SEND;
1484 }
1485}
1486
1487void
1488aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1489 PPCODE:
1490{
1491 dREQ;
1492
1493 req->type = EIO_MLOCKALL;
1494 req->int1 = flags;
1495
1496 REQ_SEND;
1497}
1498
1499void
1500aio_busy (double delay, SV *callback=&PL_sv_undef)
1566 PPCODE: 1501 PPCODE:
1567{ 1502{
1568 dREQ; 1503 dREQ;
1569 1504
1570 req->type = REQ_MKNOD; 1505 req->type = EIO_BUSY;
1571 req->sv1 = newSVsv (pathname); 1506 req->nv1 = delay < 0. ? 0. : delay;
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1507
1573 req->mode = (mode_t)mode;
1574 req->offs = dev;
1575
1576 REQ_SEND; 1508 REQ_SEND;
1577} 1509}
1578 1510
1579void 1511void
1580aio_busy (delay,callback=&PL_sv_undef) 1512aio_group (SV *callback=&PL_sv_undef)
1581 double delay 1513 PPCODE:
1582 SV * callback 1514{
1515 dREQ;
1516
1517 req->type = EIO_GROUP;
1518
1519 req_submit (req);
1520 XPUSHs (req_sv (req, aio_grp_stash));
1521}
1522
1523void
1524aio_nop (SV *callback=&PL_sv_undef)
1525 ALIAS:
1526 aio_nop = EIO_NOP
1527 aio_sync = EIO_SYNC
1583 PPCODE: 1528 PPCODE:
1584{ 1529{
1585 dREQ; 1530 dREQ;
1586 1531
1587 req->type = REQ_BUSY;
1588 req->int1 = delay < 0. ? 0 : delay;
1589 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1590
1591 REQ_SEND;
1592}
1593
1594void
1595aio_group (callback=&PL_sv_undef)
1596 SV * callback
1597 PROTOTYPE: ;$
1598 PPCODE:
1599{
1600 dREQ;
1601
1602 req->type = REQ_GROUP;
1603
1604 req_send (req);
1605 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1606}
1607
1608void
1609aio_nop (callback=&PL_sv_undef)
1610 SV * callback
1611 PPCODE:
1612{
1613 dREQ;
1614
1615 req->type = REQ_NOP; 1532 req->type = ix;
1616 1533
1617 REQ_SEND; 1534 REQ_SEND;
1618} 1535}
1619 1536
1620int 1537int
1621aioreq_pri (int pri = 0) 1538aioreq_pri (int pri = 0)
1622 PROTOTYPE: ;$
1623 CODE: 1539 CODE:
1624 RETVAL = next_pri - PRI_BIAS; 1540 RETVAL = next_pri;
1625 if (items > 0) 1541 if (items > 0)
1626 { 1542 {
1627 if (pri < PRI_MIN) pri = PRI_MIN; 1543 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1628 if (pri > PRI_MAX) pri = PRI_MAX; 1544 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1629 next_pri = pri + PRI_BIAS; 1545 next_pri = pri;
1630 } 1546 }
1631 OUTPUT: 1547 OUTPUT:
1632 RETVAL 1548 RETVAL
1633 1549
1634void 1550void
1635aioreq_nice (int nice = 0) 1551aioreq_nice (int nice = 0)
1636 CODE: 1552 CODE:
1637 nice = next_pri - nice; 1553 nice = next_pri - nice;
1638 if (nice < PRI_MIN) nice = PRI_MIN; 1554 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1639 if (nice > PRI_MAX) nice = PRI_MAX; 1555 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1640 next_pri = nice + PRI_BIAS; 1556 next_pri = nice;
1641 1557
1642void 1558void
1643flush () 1559flush ()
1644 PROTOTYPE:
1645 CODE: 1560 CODE:
1646 while (nreqs) 1561 while (eio_nreqs ())
1647 { 1562 {
1648 poll_wait (); 1563 poll_wait ();
1649 poll_cb (); 1564 poll_cb ();
1650 } 1565 }
1651 1566
1652int 1567int
1653poll() 1568poll ()
1654 PROTOTYPE:
1655 CODE: 1569 CODE:
1656 if (nreqs)
1657 {
1658 poll_wait (); 1570 poll_wait ();
1659 RETVAL = poll_cb ();
1660 }
1661 else
1662 RETVAL = 0;
1663 OUTPUT:
1664 RETVAL
1665
1666int
1667poll_fileno()
1668 PROTOTYPE:
1669 CODE:
1670 RETVAL = respipe [0];
1671 OUTPUT:
1672 RETVAL
1673
1674int
1675poll_cb(...)
1676 PROTOTYPE:
1677 CODE:
1678 RETVAL = poll_cb (); 1571 RETVAL = poll_cb ();
1679 OUTPUT: 1572 OUTPUT:
1680 RETVAL 1573 RETVAL
1681 1574
1682void
1683poll_wait()
1684 PROTOTYPE:
1685 CODE:
1686 if (nreqs)
1687 poll_wait ();
1688
1689int 1575int
1690nreqs() 1576poll_fileno ()
1691 PROTOTYPE:
1692 CODE: 1577 CODE:
1693 RETVAL = nreqs; 1578 RETVAL = s_epipe_fd (&respipe);
1694 OUTPUT: 1579 OUTPUT:
1695 RETVAL 1580 RETVAL
1696 1581
1697int 1582int
1698nready() 1583poll_cb (...)
1699 PROTOTYPE: 1584 PROTOTYPE:
1700 CODE: 1585 CODE:
1701 RETVAL = get_nready (); 1586 RETVAL = poll_cb ();
1702 OUTPUT: 1587 OUTPUT:
1703 RETVAL 1588 RETVAL
1704 1589
1590void
1591poll_wait ()
1592 CODE:
1593 poll_wait ();
1594
1705int 1595int
1706npending() 1596nreqs ()
1707 PROTOTYPE:
1708 CODE: 1597 CODE:
1709 RETVAL = get_npending (); 1598 RETVAL = eio_nreqs ();
1710 OUTPUT: 1599 OUTPUT:
1711 RETVAL 1600 RETVAL
1712 1601
1713int 1602int
1714nthreads() 1603nready ()
1715 PROTOTYPE:
1716 CODE: 1604 CODE:
1717 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1605 RETVAL = eio_nready ();
1718 RETVAL = started;
1719 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1720 OUTPUT: 1606 OUTPUT:
1721 RETVAL 1607 RETVAL
1722 1608
1609int
1610npending ()
1611 CODE:
1612 RETVAL = eio_npending ();
1613 OUTPUT:
1614 RETVAL
1615
1616int
1617nthreads ()
1618 CODE:
1619 RETVAL = eio_nthreads ();
1620 OUTPUT:
1621 RETVAL
1622
1623int
1624fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1625 CODE:
1626 RETVAL = posix_fadvise (fh, offset, length, advice);
1627 OUTPUT:
1628 RETVAL
1629
1630IV
1631sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1632 CODE:
1633 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1634 OUTPUT:
1635 RETVAL
1636
1637void
1638mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1639 PPCODE:
1640 sv_unmagic (scalar, MMAP_MAGIC);
1641{
1642 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1643 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1644 if (addr == (void *)-1)
1645 XSRETURN_NO;
1646
1647 sv_force_normal (scalar);
1648
1649 /* we store the length in mg_obj, as namlen is I32 :/ */
1650 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1651 ->mg_obj = (SV *)length;
1652
1653 SvUPGRADE (scalar, SVt_PV); /* nop... */
1654
1655 if (!(prot & PROT_WRITE))
1656 SvREADONLY_on (scalar);
1657
1658 if (SvLEN (scalar))
1659 Safefree (SvPVX (scalar));
1660
1661 SvPVX (scalar) = (char *)addr;
1662 SvCUR_set (scalar, length);
1663 SvLEN_set (scalar, 0);
1664 SvPOK_only (scalar);
1665
1666 XSRETURN_YES;
1667}
1668
1669void
1670munmap (SV *scalar)
1671 CODE:
1672 sv_unmagic (scalar, MMAP_MAGIC);
1673
1674int
1675madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1676 ALIAS:
1677 mprotect = 1
1678 CODE:
1679{
1680 STRLEN svlen;
1681 void *addr = SvPVbyte (scalar, svlen);
1682 size_t len = SvUV (length);
1683
1684 if (offset < 0)
1685 offset += svlen;
1686
1687 if (offset < 0 || offset > svlen)
1688 croak ("offset outside of scalar");
1689
1690 if (!SvOK (length) || len + offset > svlen)
1691 len = svlen - offset;
1692
1693 addr = (void *)(((intptr_t)addr) + offset);
1694 eio_page_align (&addr, &len);
1695
1696 switch (ix)
1697 {
1698 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1699 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1700 }
1701}
1702 OUTPUT:
1703 RETVAL
1704
1705int
1706munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1707 CODE:
1708{
1709 STRLEN svlen;
1710 void *addr = SvPVbyte (scalar, svlen);
1711 size_t len = SvUV (length);
1712
1713 if (offset < 0)
1714 offset += svlen;
1715
1716 if (offset < 0 || offset > svlen)
1717 croak ("offset outside of scalar");
1718
1719 if (!SvOK (length) || len + offset > svlen)
1720 len = svlen - offset;
1721
1722 addr = (void *)(((intptr_t)addr) + offset);
1723 eio_page_align (&addr, &len);
1724#if _POSIX_MEMLOCK_RANGE
1725 RETVAL = munlock (addr, len);
1726#else
1727 RETVAL = ((errno = ENOSYS), -1);
1728#endif
1729}
1730 OUTPUT:
1731 RETVAL
1732
1733int
1734munlockall ()
1735 CODE:
1736#if _POSIX_MEMLOCK
1737 munlockall ();
1738#else
1739 RETVAL = -1;
1740 errno = ENOSYS;
1741#endif
1742 OUTPUT:
1743 RETVAL
1744
1745void _on_next_submit (SV *cb)
1746 CODE:
1747 SvREFCNT_dec (on_next_submit);
1748 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1749
1723PROTOTYPES: DISABLE 1750PROTOTYPES: DISABLE
1724 1751
1752MODULE = IO::AIO PACKAGE = IO::AIO::WD
1753
1754BOOT:
1755{
1756 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1757 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1758}
1759
1760void
1761DESTROY (SV *self)
1762 CODE:
1763{
1764 aio_wd wd = SvAIO_WD (self);
1765#if HAVE_AT
1766 SV *callback = &PL_sv_undef;
1767 dREQ; /* clobbers next_pri :/ */
1768 req->type = EIO_WD_CLOSE;
1769 req->wd = wd;
1770 REQ_SEND;
1771#else
1772 eio_wd_close_sync (wd);
1773#endif
1774}
1775
1725MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1776MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1726 1777
1727void 1778void
1728cancel (aio_req_ornot req) 1779cancel (aio_req_ornot req)
1729 CODE: 1780 CODE:
1730 req_cancel (req); 1781 eio_cancel (req);
1731 1782
1732void 1783void
1733cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1784cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1734 CODE: 1785 PPCODE:
1786{
1787 if (GIMME_V != G_VOID)
1788 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1789
1790 if (items > 1)
1791 {
1792 SV *cb_cv =get_cb (callback);
1793
1735 SvREFCNT_dec (req->callback); 1794 SvREFCNT_dec (req->callback);
1736 req->callback = newSVsv (callback); 1795 req->callback = SvREFCNT_inc (cb_cv);
1796 }
1797}
1737 1798
1738MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1799MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1739 1800
1740void 1801void
1741add (aio_req grp, ...) 1802add (aio_req grp, ...)
1742 PPCODE: 1803 PPCODE:
1743{ 1804{
1744 int i; 1805 int i;
1745 aio_req req;
1746 1806
1747 if (grp->int1 == 2) 1807 if (grp->int1 == 2)
1748 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1808 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1749 1809
1750 for (i = 1; i < items; ++i ) 1810 for (i = 1; i < items; ++i )
1751 { 1811 {
1812 aio_req req;
1813
1752 if (GIMME_V != G_VOID) 1814 if (GIMME_V != G_VOID)
1753 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1815 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1754 1816
1755 req = SvAIO_REQ (ST (i)); 1817 req = SvAIO_REQ (ST (i));
1756 1818
1757 if (req) 1819 if (req)
1758 { 1820 eio_grp_add (grp, req);
1759 ++grp->size;
1760 req->grp = grp;
1761
1762 req->grp_prev = 0;
1763 req->grp_next = grp->grp_first;
1764
1765 if (grp->grp_first)
1766 grp->grp_first->grp_prev = req;
1767
1768 grp->grp_first = req;
1769 }
1770 } 1821 }
1771} 1822}
1772 1823
1773void 1824void
1774cancel_subs (aio_req_ornot req) 1825cancel_subs (aio_req_ornot req)
… …
1783 AV *av; 1834 AV *av;
1784 1835
1785 grp->errorno = errno; 1836 grp->errorno = errno;
1786 1837
1787 av = newAV (); 1838 av = newAV ();
1839 av_extend (av, items - 1);
1788 1840
1789 for (i = 1; i < items; ++i ) 1841 for (i = 1; i < items; ++i )
1790 av_push (av, newSVsv (ST (i))); 1842 av_push (av, newSVsv (ST (i)));
1791 1843
1792 SvREFCNT_dec (grp->sv1); 1844 SvREFCNT_dec (grp->sv1);
… …
1799 grp->errorno = errorno; 1851 grp->errorno = errorno;
1800 1852
1801void 1853void
1802limit (aio_req grp, int limit) 1854limit (aio_req grp, int limit)
1803 CODE: 1855 CODE:
1804 grp->int2 = limit; 1856 eio_grp_limit (grp, limit);
1805 aio_grp_feed (grp);
1806 1857
1807void 1858void
1808feed (aio_req grp, SV *callback=&PL_sv_undef) 1859feed (aio_req grp, SV *callback=&PL_sv_undef)
1809 CODE: 1860 CODE:
1810{ 1861{
1811 SvREFCNT_dec (grp->sv2); 1862 SvREFCNT_dec (grp->sv2);
1812 grp->sv2 = newSVsv (callback); 1863 grp->sv2 = newSVsv (callback);
1864 grp->feed = aio_grp_feed;
1813 1865
1814 if (grp->int2 <= 0) 1866 if (grp->int2 <= 0)
1815 grp->int2 = 2; 1867 grp->int2 = 2;
1816 1868
1817 aio_grp_feed (grp); 1869 eio_grp_limit (grp, grp->int2);
1818} 1870}
1819 1871

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines