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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.105 by root, Sun Jul 8 11:12:15 2007 UTC vs.
Revision 1.202 by root, Thu Sep 29 10:01:35 2011 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
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
18#ifdef _WIN32 33#ifdef _WIN32
19 34
20# define SIGIO 0 35 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 36
22#undef malloc 37 #undef malloc
23#undef free 38 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 39 #undef open
27# undef read 40 #undef read
28# undef write 41 #undef write
29# undef send 42 #undef send
30# undef recv 43 #undef recv
31# undef stat 44 #undef stat
45 #undef lstat
32# undef fstat 46 #undef fstat
33# define lstat stat
34# undef truncate 47 #undef truncate
35# undef ftruncate 48 #undef ftruncate
36# undef open 49 #undef open
50 #undef link
37# undef close 51 #undef close
38# undef unlink 52 #undef unlink
53 #undef mkdir
39# undef rmdir 54 #undef rmdir
40# undef rename 55 #undef rename
41# undef lseek 56 #undef lseek
42 57 #undef opendir
43# define chown(a,b,c) (errno = ENOSYS, -1) 58 #undef readdir
44# define fchown(a,b,c) (errno = ENOSYS, -1) 59 #undef closedir
45# define fchmod(a,b) (errno = ENOSYS, -1) 60 #undef chmod
46# define symlink(a,b) (errno = ENOSYS, -1) 61 #undef fchmod
47# define readlink(a,b,c) (errno = ENOSYS, -1) 62 #undef dup
48# define mknod(a,b,c) (errno = ENOSYS, -1) 63 #undef dup2
49# define truncate(a,b) (errno = ENOSYS, -1) 64 #undef abort
50# define ftruncate(fd,o) chsize ((fd), (o)) 65 #undef pipe
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 66
57#else 67#else
58 68
59# include "autoconf/config.h"
60# include <sys/time.h> 69 #include <sys/time.h>
61# include <sys/select.h> 70 #include <sys/select.h>
62# include <unistd.h> 71 #include <unistd.h>
63# include <utime.h> 72 #include <utime.h>
64# include <signal.h> 73 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 74
67#endif
68
69#if HAVE_SENDFILE
70# if __linux
71# include <sys/sendfile.h>
72# elif __freebsd
73# include <sys/socket.h>
74# include <sys/uio.h>
75# elif __hpux
76# include <sys/socket.h>
77# elif __solaris /* not yet */
78# include <sys/sendfile.h>
79# else
80# error sendfile support requested but not available
81# endif 75#endif
82#endif
83 76
84/* number of seconds after which idle threads exit */ 77#define EIO_STRUCT_STAT Stat_t
85#define IDLE_TIMEOUT 10
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif
91
92/* buffer size for various temporary buffers */
93#define AIO_BUFSIZE 65536
94 78
95/* use NV for 32 bit perls as it allows larger offsets */ 79/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 80#if IVSIZE >= 8
81# define VAL64 IV
97# define SvVAL64 SvIV 82# define SvVAL64 SvIV
83# define newSVval64 newSViv
98#else 84#else
85# define VAL64 NV
99# define SvVAL64 SvNV 86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
100#endif 88#endif
101 89
102#define dBUF \ 90/*****************************************************************************/
103 char *aio_buf; \ 91
104 X_LOCK (wrklock); \ 92#if __GNUC__ >= 3
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 93# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_UNLOCK (wrklock); \ 94#else
107 if (!aio_buf) \ 95# define expect(expr,value) (expr)
108 return -1; 96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
109 102
110typedef SV SV8; /* byte-sv, used for argument-checking */ 103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* 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
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
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
314
315#ifndef makedev
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
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif
111 328
112enum { 329enum {
113 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 331};
129 332
130#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP"
132
133typedef struct aio_cb
134{
135 struct aio_cb *volatile next;
136
137 SV *callback;
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset;
146 int type;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150
151 unsigned char flags;
152 unsigned char pri;
153
154 SV *self; /* the perl counterpart of this request, if any */
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
156} aio_cb;
157
158enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162};
163
164typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
166 336
167enum { 337static SV *on_next_submit;
168 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 339static int max_outstanding;
170 340
171 DEFAULT_PRI = 0, 341static s_epipe respipe;
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 342
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 343static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
376 345
346static void
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
377/* must be called at most once */ 360/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
379{ 363{
380 if (!req->self) 364 if (!req->self)
381 { 365 {
382 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 368 }
385 369
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 371}
388 372
389static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
390{ 381{
391 MAGIC *mg; 382 MAGIC *mg;
392 383
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 384 if (!SvROK (sv)
385 || (SvSTASH (SvRV (sv)) != aio_grp_stash
386 && SvSTASH (SvRV (sv)) != aio_req_stash
387 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 388 croak ("object of class IO::AIO::REQ expected");
395 389
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 391
398 return mg ? (aio_req)mg->mg_ptr : 0; 392 return mg ? (aio_req)mg->mg_ptr : 0;
399} 393}
400 394
395static aio_wd
396SvAIO_WD (SV *sv)
397{
398 if (!SvROK (sv)
399 || SvSTASH (SvRV (sv)) != aio_wd_stash
400 || SvTYPE (SvRV (sv)) != SVt_PVMG)
401 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402
403 return (aio_wd)(long)SvIVX (SvRV (sv));
404}
405
406static void
401static void aio_grp_feed (aio_req grp) 407aio_grp_feed (aio_req grp)
402{ 408{
403 block_sig (); 409 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 410 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 411 dSP;
412 412
413 ENTER; 413 ENTER;
414 SAVETMPS; 414 SAVETMPS;
415 PUSHMARK (SP); 415 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 417 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 419 SPAGAIN;
420 FREETMPS; 420 FREETMPS;
421 LEAVE; 421 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 422 }
432
433 unblock_sig ();
434} 423}
435 424
436static void aio_grp_dec (aio_req grp) 425static void
426req_submit (eio_req *req)
437{ 427{
438 --grp->size; 428 eio_submit (req);
439 429
440 /* call feeder, if applicable */ 430 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 431 {
446 block_sig (); 432 dSP;
433 SV *cb = sv_2mortal (on_next_submit);
447 434
448 if (!req_invoke (grp)) 435 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 436
455 req_destroy (grp); 437 PUSHMARK (SP);
456 unblock_sig (); 438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
457 } 440 }
458} 441}
459 442
443static int
460static int req_invoke (aio_req req) 444req_invoke (eio_req *req)
461{ 445{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 446 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 447 SvREADONLY_off (req->sv2);
466 448
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 449 if (!EIO_CANCELLED (req) && req->callback)
468 { 450 {
451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
454
469 ENTER; 455 ENTER;
470 SAVETMPS; 456 SAVETMPS;
471 PUSHMARK (SP); 457 PUSHMARK (SP);
472 EXTEND (SP, 1); 458 EXTEND (SP, 1);
473 459
460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
462 {
463 sv_result = sv_result_cache; sv_result_cache = 0;
464 SvIV_set (sv_result, req->result);
465 SvIOK_only (sv_result);
466 }
467 else
468 {
469 sv_result = newSViv (req->result);
470 SvREADONLY_on (sv_result);
471 }
472
474 switch (req->type) 473 switch (req->type)
475 { 474 {
475 case EIO_WD_OPEN:
476 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
476 case REQ_READDIR: 479 case EIO_READDIR:
477 { 480 {
478 SV *rv = &PL_sv_undef; 481 SV *rv = &PL_sv_undef;
479 482
480 if (req->result >= 0) 483 if (req->result >= 0)
481 { 484 {
482 int i; 485 int i;
483 char *buf = req->ptr2; 486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 488 AV *av = newAV ();
485 489
486 av_extend (av, req->result - 1); 490 av_extend (av, req->result - 1);
487 491
488 for (i = 0; i < req->result; ++i) 492 for (i = 0; i < req->result; ++i)
489 { 493 {
490 SV *sv = newSVpv (buf, 0); 494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 497
498 if (req->int1 & EIO_READDIR_CUSTOM2)
499 {
500 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
501 AV *avent = newAV ();
502
503 av_extend (avent, 2);
504
505 if (!sv_type [ent->type])
506 {
507 sv_type [ent->type] = newSViv (ent->type);
508 SvREADONLY_on (sv_type [ent->type]);
509 }
510
511 av_store (avent, 0, namesv);
512 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
513 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
514
515 av_store (av, i, newRV_noinc ((SV *)avent));
516 }
517 else
492 av_store (av, i, sv); 518 av_store (av, i, namesv);
519
520 ++ent;
521 }
522 else
523 {
524 SV *name = newSVpv (names, 0);
525 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 526 names += SvCUR (name) + 1;
527 }
494 } 528 }
495 529
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 530 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 531 }
498 532
499 PUSHs (rv); 533 PUSHs (rv);
534
535 if (req->int1 & EIO_READDIR_CUSTOM1)
536 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 537 }
501 break; 538 break;
502 539
503 case REQ_OPEN: 540 case EIO_OPEN:
504 { 541 {
505 /* convert fd to fh */ 542 /* convert fd to fh */
506 SV *fh; 543 SV *fh = &PL_sv_undef;
507 544
508 PUSHs (sv_2mortal (newSViv (req->result))); 545 if (req->result >= 0)
509 PUTBACK; 546 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 547 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 548 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
549 char sym [64];
550 int symlen;
551
552 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
553 gv_init (gv, aio_stash, sym, symlen, 0);
512 554
513 fh = POPs; 555 symlen = snprintf (
514 PUSHMARK (SP); 556 sym,
557 sizeof (sym),
558 "%s&=%d",
559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560 (int)req->result
561 );
562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
515 XPUSHs (fh); 567 PUSHs (fh);
516 } 568 }
517 break; 569 break;
518 570
571 case EIO_STATVFS:
572 case EIO_FSTATVFS:
573 {
574 SV *rv = &PL_sv_undef;
575
576#ifndef _WIN32
577 if (req->result >= 0)
578 {
579 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580 HV *hv = newHV ();
581
582 rv = sv_2mortal (newRV_noinc ((SV *)hv));
583
584 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
586 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
587 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
593 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595 }
596#endif
597
598 PUSHs (rv);
599 }
600
601 break;
602
519 case REQ_GROUP: 603 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 604 req->int1 = 2; /* mark group as finished */
521 605
522 if (req->sv1) 606 if (req->sv1)
523 { 607 {
524 int i; 608 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 612 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 613 PUSHs (*av_fetch (av, i, 0));
530 } 614 }
531 break; 615 break;
532 616
533 case REQ_NOP: 617 case EIO_NOP:
534 case REQ_BUSY: 618 case EIO_BUSY:
535 break; 619 break;
536 620
537 case REQ_READLINK: 621 case EIO_READLINK:
622 case EIO_REALPATH:
538 if (req->result > 0) 623 if (req->result > 0)
539 { 624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
540 SvCUR_set (req->sv2, req->result);
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2);
543 }
544 break; 625 break;
545 626
546 case REQ_STAT: 627 case EIO_STAT:
547 case REQ_LSTAT: 628 case EIO_LSTAT:
548 case REQ_FSTAT: 629 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
550 PL_laststatval = req->result; 632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
551 PL_statcache = *(Stat_t *)(req->ptr2); 634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 635
636 PUSHs (sv_result);
553 break; 637 break;
554 638
555 case REQ_READ: 639 case EIO_READ:
640 {
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 642 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
559 break; 647 break;
560 648
649 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650 if (req->result > 0)
651 SvIV_set (sv_result, 0);
652 /* FALLTHROUGH */
653
561 default: 654 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 655 PUSHs (sv_result);
563 break; 656 break;
564 } 657 }
565 658
566 errno = req->errorno; 659 errno = req->errorno;
567 660
568 PUTBACK; 661 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 663 SPAGAIN;
664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
571 669
572 FREETMPS; 670 FREETMPS;
573 LEAVE; 671 LEAVE;
672
673 PUTBACK;
574 } 674 }
575 675
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 676 return !!SvTRUE (ERRSV);
591} 677}
592 678
679static void
593static void req_destroy (aio_req req) 680req_destroy (aio_req req)
594{ 681{
595 if (req->self) 682 if (req->self)
596 { 683 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 684 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 685 SvREFCNT_dec (req->self);
599 } 686 }
600 687
601 SvREFCNT_dec (req->sv1); 688 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 692 SvREFCNT_dec (req->callback);
604 693
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 694 Safefree (req);
609} 695}
610 696
697static void
611static void req_cancel_subs (aio_req grp) 698req_cancel_subs (aio_req grp)
612{ 699{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 700 if (grp->type != EIO_GROUP)
616 return; 701 return;
617 702
618 SvREFCNT_dec (grp->sv2); 703 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 704 grp->sv2 = 0;
620 705
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 706 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 707}
624 708
625static void req_cancel (aio_req req) 709static void ecb_cold
710create_respipe (void)
626{ 711{
627 req->flags |= FLAG_CANCELLED; 712 if (s_epipe_renew (&respipe))
628 713 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 714}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637 715
638static void 716static void
639create_pipe (int fd[2]) 717poll_wait (void)
640{ 718{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655}
656
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 719 while (eio_nreqs ())
757 { 720 {
758 int size; 721 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 722
723 X_LOCK (reslock);
760 size = res_queue.size; 724 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 725 X_UNLOCK (reslock);
762 726
763 if (size) 727 if (size)
764 return; 728 return;
765 729
766 maybe_start_thread (); 730 etp_maybe_start_thread ();
767 731
768 FD_ZERO (&rfd); 732 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 733 }
773} 734}
774 735
775static int poll_cb () 736static int
737poll_cb (void)
776{ 738{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 739 for (;;)
790 { 740 {
791 for (;;) 741 int res = eio_poll ();
792 {
793 maybe_start_thread ();
794 742
795 X_LOCK (reslock); 743 if (res > 0)
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 {
800 --npending;
801
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (respipe_read (respipe [0], buf, 4) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 }
823 else
824 {
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0); 744 croak (0);
830 }
831 745
832 count++; 746 if (!max_outstanding || max_outstanding > eio_nreqs ())
833 } 747 return res;
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 }
848
849 if (nreqs <= max_outstanding)
850 break;
851 748
852 poll_wait (); 749 poll_wait ();
853
854 ++maxreqs;
855 } 750 }
751}
856 752
857 unblock_sig (); 753static void ecb_cold
858 return count; 754reinit (void)
755{
756 create_respipe ();
757
758 if (eio_init (want_poll, done_poll) < 0)
759 croak ("IO::AIO: unable to initialise eio library");
859} 760}
860 761
861/*****************************************************************************/ 762/*****************************************************************************/
862/* work around various missing functions */
863 763
864#if !HAVE_PREADWRITE 764#if !_POSIX_MAPPED_FILES
865# define pread aio_pread 765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
866# define pwrite aio_pwrite 766# define munmap(addr,length) (errno = ENOSYS, -1)
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{
877 ssize_t res;
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888}
889
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
891{
892 ssize_t res;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif 767#endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041 768
1042 if (res < 0 769#if !_POSIX_MEMORY_PROTECTION
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1044#if __solaris 771# define PROT_NONE 0
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
1046#endif 776#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052 777
1053 res = 0; 778#define MMAP_MAGIC PERL_MAGIC_ext
1054 779
1055 while (count) 780static int ecb_cold
1056 { 781mmap_free (pTHX_ SV *sv, MAGIC *mg)
1057 ssize_t cnt; 782{
1058 783 int old_errno = errno;
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 784 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785 errno = old_errno;
1060 786
1061 if (cnt <= 0) 787 mg->mg_obj = 0; /* just in case */
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066 788
1067 cnt = write (ofd, aio_buf, cnt); 789 SvREADONLY_off (sv);
1068 790
1069 if (cnt <= 0) 791 if (SvPVX (sv) != mg->mg_ptr)
1070 { 792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074 793
1075 offset += cnt; 794 SvCUR_set (sv, 0);
1076 res += cnt; 795 SvPVX (sv) = 0;
1077 count -= cnt; 796 SvOK_off (sv);
1078 }
1079 }
1080 797
1081 return res; 798 return 0;
1082} 799}
1083 800
1084/* read a full directory */ 801static MGVTBL mmap_vtbl = {
1085static void scandir_ (aio_req req, worker *self) 802 0, 0, 0, 0, mmap_free
1086{ 803};
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144 804
1145/*****************************************************************************/ 805/*****************************************************************************/
1146 806
1147X_THREAD_PROC (aio_proc) 807static SV *
808get_cb (SV *cb_sv)
1148{ 809{
1149 {//D 810 SvGETMAGIC (cb_sv);
1150 aio_req req; 811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 respipe_close (respipe [0]);
1376 respipe_close (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381} 812}
1382 813
1383#define dREQ \ 814#define dREQ \
815 SV *cb_cv; \
1384 aio_req req; \ 816 aio_req req; \
1385 int req_pri = next_pri; \ 817 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \ 818 next_pri = EIO_PRI_DEFAULT; \
1387 \ 819 \
1388 if (SvOK (callback) && !SvROK (callback)) \ 820 cb_cv = get_cb (callback); \
1389 croak ("callback must be undef or of reference type"); \
1390 \ 821 \
1391 Newz (0, req, 1, aio_cb); \ 822 Newz (0, req, 1, eio_req); \
1392 if (!req) \ 823 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \ 824 croak ("out of memory during eio_req allocation"); \
1394 \ 825 \
1395 req->callback = newSVsv (callback); \ 826 req->callback = SvREFCNT_inc (cb_cv); \
1396 req->pri = req_pri 827 req->pri = req_pri
1397 828
1398#define REQ_SEND \ 829#define REQ_SEND \
830 PUTBACK; \
1399 req_send (req); \ 831 req_submit (req); \
832 SPAGAIN; \
1400 \ 833 \
1401 if (GIMME_V != G_VOID) \ 834 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 835 XPUSHs (req_sv (req, aio_req_stash));
1403 836
837ecb_inline void
838req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839{
840 if (expect_false (SvROK (path)))
841 {
842 AV *av = (AV *)SvRV (path);
843 SV *wdob;
844
845 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
846 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848 path = AvARRAY (av)[1];
849 wdob = AvARRAY (av)[0];
850
851 if (SvOK (wdob))
852 {
853 *wd = SvAIO_WD (wdob);
854 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
855 }
856 else
857 *wd = EIO_INVALID_WD;
858 }
859
860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 break;
884
885 default:
886 req->type = type_path;
887 req_set_path1 (req, fh_or_path);
888 break;
889 }
890}
891
892XS(boot_IO__AIO) ecb_cold;
893
1404MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
1405 895
1406PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
1407 897
1408BOOT: 898BOOT:
1409{ 899{
900 static const struct {
901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907 const_iv (EXDEV)
908 const_iv (ENOSYS)
909 const_iv (O_RDONLY)
910 const_iv (O_WRONLY)
911 const_iv (O_RDWR)
912 const_iv (O_CREAT)
913 const_iv (O_TRUNC)
914 const_iv (O_EXCL)
915 const_iv (O_APPEND)
916
917 const_iv (O_ASYNC)
918 const_iv (O_DIRECT)
919 const_iv (O_NOATIME)
920
921 const_iv (O_CLOEXEC)
922 const_iv (O_NOCTTY)
923 const_iv (O_NOFOLLOW)
924 const_iv (O_NONBLOCK)
925 const_iv (O_EXEC)
926 const_iv (O_SEARCH)
927 const_iv (O_DIRECTORY)
928 const_iv (O_DSYNC)
929 const_iv (O_RSYNC)
930 const_iv (O_SYNC)
931 const_iv (O_TTY_INIT)
932
933 const_iv (S_IFIFO)
934 const_iv (S_IFCHR)
935 const_iv (S_IFBLK)
936 const_iv (S_IFLNK)
937 const_iv (S_IFREG)
938 const_iv (S_IFDIR)
939 const_iv (S_IFWHT)
940 const_iv (S_IFSOCK)
941 const_iv (S_IFMT)
942
943 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
944 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
945 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
946 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
947 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
948 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
949
950 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
951 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
952 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
953 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
954 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
955
956 const_iv (ST_RDONLY)
957 const_iv (ST_NOSUID)
958 const_iv (ST_NODEV)
959 const_iv (ST_NOEXEC)
960 const_iv (ST_SYNCHRONOUS)
961 const_iv (ST_MANDLOCK)
962 const_iv (ST_WRITE)
963 const_iv (ST_APPEND)
964 const_iv (ST_IMMUTABLE)
965 const_iv (ST_NOATIME)
966 const_iv (ST_NODIRATIME)
967 const_iv (ST_RELATIME)
968
969 const_iv (PROT_NONE)
970 const_iv (PROT_EXEC)
971 const_iv (PROT_READ)
972 const_iv (PROT_WRITE)
973
974 /*const_iv (MAP_FIXED)*/
975 const_iv (MAP_PRIVATE)
976 const_iv (MAP_SHARED)
977 const_iv (MAP_ANONYMOUS)
978
979 /* linuxish */
980 const_iv (MAP_HUGETLB)
981 const_iv (MAP_LOCKED)
982 const_iv (MAP_NORESERVE)
983 const_iv (MAP_POPULATE)
984 const_iv (MAP_NONBLOCK)
985
986 const_eio (MCL_FUTURE)
987 const_eio (MCL_CURRENT)
988
989 const_eio (MS_ASYNC)
990 const_eio (MS_INVALIDATE)
991 const_eio (MS_SYNC)
992
993 const_eio (MT_MODIFY)
994
995 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
996 const_eio (SYNC_FILE_RANGE_WRITE)
997 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
998
999 const_eio (FALLOC_FL_KEEP_SIZE)
1000
1001 const_eio (READDIR_DENTS)
1002 const_eio (READDIR_DIRS_FIRST)
1003 const_eio (READDIR_STAT_ORDER)
1004 const_eio (READDIR_FOUND_UNKNOWN)
1005
1006 const_eio (DT_UNKNOWN)
1007 const_eio (DT_FIFO)
1008 const_eio (DT_CHR)
1009 const_eio (DT_DIR)
1010 const_eio (DT_BLK)
1011 const_eio (DT_REG)
1012 const_eio (DT_LNK)
1013 const_eio (DT_SOCK)
1014 const_eio (DT_WHT)
1015 };
1016
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1017 aio_stash = gv_stashpv ("IO::AIO" , 1);
1018 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1019 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1020 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1021
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1022 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1023 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 1024
1425 X_COND_CHECK (reqwait); 1025 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 1026
1431 create_pipe (respipe); 1027 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1028}
1435 1029
1436void 1030void
1031reinit ()
1032 PROTOTYPE:
1033
1034void
1437max_poll_reqs (int nreqs) 1035max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1036 PROTOTYPE: $
1439 CODE: 1037 CODE:
1440 max_poll_reqs = nreqs; 1038 eio_set_max_poll_reqs (nreqs);
1441 1039
1442void 1040void
1443max_poll_time (double nseconds) 1041max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1042 PROTOTYPE: $
1445 CODE: 1043 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1044 eio_set_max_poll_time (nseconds);
1447 1045
1448void 1046void
1449min_parallel (int nthreads) 1047min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1048 PROTOTYPE: $
1459 CODE: 1049 CODE:
1460 set_max_idle (nthreads); 1050 eio_set_min_parallel (nthreads);
1461 1051
1462int 1052void
1463max_outstanding (int maxreqs) 1053max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1054 PROTOTYPE: $
1465 CODE: 1055 CODE:
1466 RETVAL = max_outstanding; 1056 eio_set_max_parallel (nthreads);
1057
1058void
1059max_idle (unsigned int nthreads)
1060 PROTOTYPE: $
1061 CODE:
1062 eio_set_max_idle (nthreads);
1063
1064void
1065idle_timeout (unsigned int seconds)
1066 PROTOTYPE: $
1067 CODE:
1068 eio_set_idle_timeout (seconds);
1069
1070void
1071max_outstanding (unsigned int maxreqs)
1072 PROTOTYPE: $
1073 CODE:
1467 max_outstanding = maxreqs; 1074 max_outstanding = maxreqs;
1468 OUTPUT: 1075
1469 RETVAL 1076void
1077aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1078 PPCODE:
1079{
1080 dREQ;
1081
1082 req->type = EIO_WD_OPEN;
1083 req_set_path1 (req, pathname);
1084
1085 REQ_SEND;
1086}
1470 1087
1471void 1088void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1089aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1090 PPCODE:
1475{ 1091{
1476 dREQ; 1092 dREQ;
1477 1093
1478 req->type = REQ_OPEN; 1094 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1095 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1096 req->int1 = flags;
1482 req->mode = mode; 1097 req->int2 = mode;
1483 1098
1484 REQ_SEND; 1099 REQ_SEND;
1485} 1100}
1486 1101
1487void 1102void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1103aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1104 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1105 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1106 aio_fdatasync = EIO_FDATASYNC
1107 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1108 PPCODE:
1495{ 1109{
1110 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1111 dREQ;
1497 1112
1498 req->type = ix; 1113 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1114 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1115 req->int1 = fd;
1116
1117 REQ_SEND (req);
1118}
1119
1120void
1121aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1122 PPCODE:
1123{
1124 int fd = s_fileno_croak (fh, 0);
1125 dREQ;
1126
1127 req->type = EIO_SYNC_FILE_RANGE;
1128 req->sv1 = newSVsv (fh);
1129 req->int1 = fd;
1130 req->offs = offset;
1131 req->size = nbytes;
1132 req->int2 = flags;
1133
1134 REQ_SEND (req);
1135}
1136
1137void
1138aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1139 PPCODE:
1140{
1141 int fd = s_fileno_croak (fh, 0);
1142 dREQ;
1143
1144 req->type = EIO_FALLOCATE;
1145 req->sv1 = newSVsv (fh);
1146 req->int1 = fd;
1147 req->int2 = mode;
1148 req->offs = offset;
1149 req->size = len;
1150
1151 REQ_SEND (req);
1152}
1153
1154void
1155aio_close (SV *fh, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1159 int fd = s_fileno_croak (fh, 0);
1160 dREQ;
1161
1162 if (expect_false (close_fd < 0))
1163 {
1164 int pipefd [2];
1165
1166 if (
1167#ifdef _WIN32
1168 _pipe (pipefd, 1, _O_BINARY) < 0
1169#else
1170 pipe (pipefd) < 0
1171 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1172#endif
1173 || close (pipefd [1]) < 0
1174 )
1175 abort (); /*D*/
1176
1177 close_fd = pipefd [0];
1178 }
1179
1180 req->type = EIO_DUP2;
1181 req->int1 = close_fd;
1182 req->sv2 = newSVsv (fh);
1183 req->int2 = fd;
1501 1184
1502 REQ_SEND (req); 1185 REQ_SEND (req);
1503} 1186}
1504 1187
1505void 1188void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1189aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1190 ALIAS:
1508 aio_read = REQ_READ 1191 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1192 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1193 PPCODE:
1512{ 1194{
1513 STRLEN svlen; 1195 STRLEN svlen;
1196 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1197 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1198 UV len = SvUV (length);
1516 1199
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1200 if (dataoffset < 0)
1521 dataoffset += svlen; 1201 dataoffset += svlen;
1522 1202
1523 if (dataoffset < 0 || dataoffset > svlen) 1203 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1204 croak ("dataoffset outside of data scalar");
1525 1205
1526 if (ix == REQ_WRITE) 1206 if (ix == EIO_WRITE)
1527 { 1207 {
1528 /* write: check length and adjust. */ 1208 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1209 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1210 len = svlen - dataoffset;
1531 } 1211 }
1532 else 1212 else
1533 { 1213 {
1534 /* read: grow scalar as necessary */ 1214 /* read: check type and grow scalar as necessary */
1215 SvUPGRADE (data, SVt_PV);
1535 svptr = SvGROW (data, len + dataoffset + 1); 1216 svptr = SvGROW (data, len + dataoffset + 1);
1536 } 1217 }
1537 1218
1538 if (len < 0)
1539 croak ("length must not be negative");
1540
1541 { 1219 {
1542 dREQ; 1220 dREQ;
1543 1221
1544 req->type = ix; 1222 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1223 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1224 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1225 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1226 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1227 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1228 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1229 req->stroffset = dataoffset;
1553 1230
1554 if (!SvREADONLY (data)) 1231 if (!SvREADONLY (data))
1555 { 1232 {
1556 SvREADONLY_on (data); 1233 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1237 REQ_SEND;
1561 } 1238 }
1562} 1239}
1563 1240
1564void 1241void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1242aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1243 ALIAS:
1244 aio_readlink = EIO_READLINK
1245 aio_realpath = EIO_REALPATH
1567 PPCODE: 1246 PPCODE:
1568{ 1247{
1569 SV *data;
1570 dREQ; 1248 dREQ;
1571 1249
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1250 req->type = ix;
1576 req->sv1 = newSVsv (path); 1251 req_set_path1 (req, pathname);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1252
1581 REQ_SEND; 1253 REQ_SEND;
1582} 1254}
1583 1255
1584void 1256void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1257aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1258 PPCODE:
1588{ 1259{
1260 int ifd = s_fileno_croak (in_fh , 0);
1261 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1262 dREQ;
1590 1263
1591 req->type = REQ_SENDFILE; 1264 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1265 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1266 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1267 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1268 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1269 req->offs = in_offset;
1597 req->size = length; 1270 req->size = length;
1598 1271
1599 REQ_SEND; 1272 REQ_SEND;
1600} 1273}
1601 1274
1602void 1275void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1276aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1277 PPCODE:
1606{ 1278{
1279 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1280 dREQ;
1608 1281
1609 req->type = REQ_READAHEAD; 1282 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1283 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1284 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1285 req->offs = offset;
1613 req->size = length; 1286 req->size = length;
1614 1287
1615 REQ_SEND; 1288 REQ_SEND;
1616} 1289}
1617 1290
1618void 1291void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1292aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1293 ALIAS:
1621 aio_stat = REQ_STAT 1294 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1295 aio_lstat = EIO_LSTAT
1296 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1297 PPCODE:
1624{ 1298{
1625 dREQ; 1299 dREQ;
1626 1300
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path); 1301 req->sv1 = newSVsv (fh_or_path);
1636 1302 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 }
1642 else
1643 {
1644 req->type = REQ_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 }
1647
1648 REQ_SEND; 1303 REQ_SEND;
1649} 1304}
1305
1306UV
1307major (UV dev)
1308 ALIAS:
1309 minor = 1
1310 CODE:
1311 RETVAL = ix ? major (dev) : minor (dev);
1312 OUTPUT:
1313 RETVAL
1314
1315UV
1316makedev (UV maj, UV min)
1317 CODE:
1318 RETVAL = makedev (maj, min);
1319 OUTPUT:
1320 RETVAL
1650 1321
1651void 1322void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1323aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1324 PPCODE:
1654{ 1325{
1655 dREQ; 1326 dREQ;
1656 1327
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1328 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1329 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1330 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1331
1672 REQ_SEND; 1332 REQ_SEND;
1673} 1333}
1674 1334
1675void 1335void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1336aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1677 PPCODE: 1337 PPCODE:
1678{ 1338{
1679 dREQ; 1339 dREQ;
1680 1340
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1341 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1342 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1343
1695 REQ_SEND; 1344 REQ_SEND;
1696} 1345}
1697 1346
1698void 1347void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1348aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1700 PPCODE: 1349 PPCODE:
1701{ 1350{
1702 dREQ; 1351 dREQ;
1703 1352
1704 req->mode = mode; 1353 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1354 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1355
1718 REQ_SEND; 1356 REQ_SEND;
1719} 1357}
1720 1358
1721void 1359void
… …
1724{ 1362{
1725 dREQ; 1363 dREQ;
1726 1364
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1365 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1366 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1367 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730 1368
1731 if (SvPOK (fh_or_path)) 1369 REQ_SEND;
1732 { 1370}
1733 req->type = REQ_CHOWN; 1371
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1372void
1735 } 1373aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1736 else 1374 PPCODE:
1737 { 1375{
1738 req->type = REQ_FCHOWN; 1376 dREQ;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1377
1740 } 1378 req->type = EIO_READDIR;
1379 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1380
1381 if (flags & EIO_READDIR_DENTS)
1382 req->int1 |= EIO_READDIR_CUSTOM2;
1383
1384 req_set_path1 (req, pathname);
1385
1386 REQ_SEND;
1387}
1388
1389void
1390aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1391 PPCODE:
1392{
1393 dREQ;
1394
1395 req->type = EIO_MKDIR;
1396 req->int2 = mode;
1397 req_set_path1 (req, pathname);
1741 1398
1742 REQ_SEND; 1399 REQ_SEND;
1743} 1400}
1744 1401
1745void 1402void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1403aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1404 ALIAS:
1748 aio_unlink = REQ_UNLINK 1405 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1406 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1407 aio_readdir = EIO_READDIR
1751 PPCODE: 1408 PPCODE:
1752{ 1409{
1753 dREQ; 1410 dREQ;
1754 1411
1755 req->type = ix; 1412 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1413 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758 1414
1759 REQ_SEND; 1415 REQ_SEND;
1760} 1416}
1761 1417
1762void 1418void
1419aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1420 ALIAS:
1421 aio_link = EIO_LINK
1422 aio_symlink = EIO_SYMLINK
1423 aio_rename = EIO_RENAME
1424 PPCODE:
1425{
1426 dREQ;
1427 eio_wd wd2 = 0;
1428
1429 req->type = ix;
1430 req_set_path1 (req, oldpath);
1431 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1432 req->int3 = (long)wd2;
1433
1434 REQ_SEND;
1435}
1436
1437void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1438aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1764 PPCODE: 1439 PPCODE:
1765{ 1440{
1766 dREQ; 1441 dREQ;
1767 1442
1768 req->type = REQ_MKDIR; 1443 req->type = EIO_MKNOD;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode; 1444 req->int2 = (mode_t)mode;
1772 1445 req->offs = dev;
1773 REQ_SEND; 1446 req_set_path1 (req, pathname);
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS:
1779 aio_link = REQ_LINK
1780 aio_symlink = REQ_SYMLINK
1781 aio_rename = REQ_RENAME
1782 PPCODE:
1783{
1784 dREQ;
1785
1786 req->type = ix;
1787 req->sv2 = newSVsv (oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2);
1789 req->sv1 = newSVsv (newpath);
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1447
1792 REQ_SEND; 1448 REQ_SEND;
1793} 1449}
1794 1450
1795void 1451void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1452aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1453 ALIAS:
1454 aio_mtouch = EIO_MTOUCH
1455 aio_msync = EIO_MSYNC
1456 PPCODE:
1457{
1458 STRLEN svlen;
1459 char *svptr = SvPVbyte (data, svlen);
1460 UV len = SvUV (length);
1461
1462 if (offset < 0)
1463 offset += svlen;
1464
1465 if (offset < 0 || offset > svlen)
1466 croak ("offset outside of scalar");
1467
1468 if (!SvOK (length) || len + offset > svlen)
1469 len = svlen - offset;
1470
1471 {
1472 dREQ;
1473
1474 req->type = ix;
1475 req->sv2 = SvREFCNT_inc (data);
1476 req->ptr2 = (char *)svptr + offset;
1477 req->size = len;
1478 req->int1 = flags;
1479
1480 REQ_SEND;
1481 }
1482}
1483
1484void
1485aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1486 PPCODE:
1487{
1488 STRLEN svlen;
1489 char *svptr = SvPVbyte (data, svlen);
1490 UV len = SvUV (length);
1491
1492 if (offset < 0)
1493 offset += svlen;
1494
1495 if (offset < 0 || offset > svlen)
1496 croak ("offset outside of scalar");
1497
1498 if (!SvOK (length) || len + offset > svlen)
1499 len = svlen - offset;
1500
1501 {
1502 dREQ;
1503
1504 req->type = EIO_MLOCK;
1505 req->sv2 = SvREFCNT_inc (data);
1506 req->ptr2 = (char *)svptr + offset;
1507 req->size = len;
1508
1509 REQ_SEND;
1510 }
1511}
1512
1513void
1514aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1515 PPCODE:
1516{
1517 dREQ;
1518
1519 req->type = EIO_MLOCKALL;
1520 req->int1 = flags;
1521
1522 REQ_SEND;
1523}
1524
1525void
1526aio_busy (double delay, SV *callback=&PL_sv_undef)
1797 PPCODE: 1527 PPCODE:
1798{ 1528{
1799 dREQ; 1529 dREQ;
1800 1530
1801 req->type = REQ_MKNOD; 1531 req->type = EIO_BUSY;
1802 req->sv1 = newSVsv (pathname); 1532 req->nv1 = delay < 0. ? 0. : delay;
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1533
1804 req->mode = (mode_t)mode;
1805 req->offs = dev;
1806
1807 REQ_SEND; 1534 REQ_SEND;
1808} 1535}
1809 1536
1810void 1537void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1538aio_group (SV *callback=&PL_sv_undef)
1812 PPCODE: 1539 PPCODE:
1813{ 1540{
1814 dREQ; 1541 dREQ;
1815 1542
1816 req->type = REQ_BUSY; 1543 req->type = EIO_GROUP;
1817 req->nv1 = delay < 0. ? 0. : delay;
1818 1544
1819 REQ_SEND; 1545 req_submit (req);
1546 XPUSHs (req_sv (req, aio_grp_stash));
1820} 1547}
1821 1548
1822void 1549void
1823aio_group (SV *callback=&PL_sv_undef) 1550aio_nop (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$ 1551 ALIAS:
1825 PPCODE: 1552 aio_nop = EIO_NOP
1553 aio_sync = EIO_SYNC
1554 PPCODE:
1826{ 1555{
1827 dREQ; 1556 dREQ;
1828 1557
1829 req->type = REQ_GROUP;
1830
1831 req_send (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1833}
1834
1835void
1836aio_nop (SV *callback=&PL_sv_undef)
1837 PPCODE:
1838{
1839 dREQ;
1840
1841 req->type = REQ_NOP; 1558 req->type = ix;
1842 1559
1843 REQ_SEND; 1560 REQ_SEND;
1844} 1561}
1845 1562
1846int 1563int
1847aioreq_pri (int pri = 0) 1564aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1565 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1566 RETVAL = next_pri;
1851 if (items > 0) 1567 if (items > 0)
1852 { 1568 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1569 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1570 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1571 next_pri = pri;
1856 } 1572 }
1857 OUTPUT: 1573 OUTPUT:
1858 RETVAL 1574 RETVAL
1859 1575
1860void 1576void
1861aioreq_nice (int nice = 0) 1577aioreq_nice (int nice = 0)
1862 CODE: 1578 CODE:
1863 nice = next_pri - nice; 1579 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1580 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1581 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1582 next_pri = nice;
1867 1583
1868void 1584void
1869flush () 1585flush ()
1870 PROTOTYPE:
1871 CODE: 1586 CODE:
1872 while (nreqs) 1587 while (eio_nreqs ())
1873 { 1588 {
1874 poll_wait (); 1589 poll_wait ();
1875 poll_cb (); 1590 poll_cb ();
1876 } 1591 }
1877 1592
1878int 1593int
1879poll() 1594poll ()
1880 PROTOTYPE:
1881 CODE: 1595 CODE:
1882 poll_wait (); 1596 poll_wait ();
1883 RETVAL = poll_cb (); 1597 RETVAL = poll_cb ();
1884 OUTPUT: 1598 OUTPUT:
1885 RETVAL 1599 RETVAL
1886 1600
1887int 1601int
1888poll_fileno() 1602poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1603 CODE:
1891 RETVAL = respipe [0]; 1604 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1605 OUTPUT:
1893 RETVAL 1606 RETVAL
1894 1607
1895int 1608int
1896poll_cb(...) 1609poll_cb (...)
1897 PROTOTYPE: 1610 PROTOTYPE:
1898 CODE: 1611 CODE:
1899 RETVAL = poll_cb (); 1612 RETVAL = poll_cb ();
1900 OUTPUT: 1613 OUTPUT:
1901 RETVAL 1614 RETVAL
1902 1615
1903void 1616void
1904poll_wait() 1617poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1618 CODE:
1907 poll_wait (); 1619 poll_wait ();
1908 1620
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1621int
1947nreqs() 1622nreqs ()
1948 PROTOTYPE:
1949 CODE: 1623 CODE:
1950 RETVAL = nreqs; 1624 RETVAL = eio_nreqs ();
1951 OUTPUT: 1625 OUTPUT:
1952 RETVAL 1626 RETVAL
1953 1627
1954int 1628int
1955nready() 1629nready ()
1956 PROTOTYPE:
1957 CODE: 1630 CODE:
1958 RETVAL = get_nready (); 1631 RETVAL = eio_nready ();
1959 OUTPUT: 1632 OUTPUT:
1960 RETVAL 1633 RETVAL
1961 1634
1962int 1635int
1963npending() 1636npending ()
1964 PROTOTYPE:
1965 CODE: 1637 CODE:
1966 RETVAL = get_npending (); 1638 RETVAL = eio_npending ();
1967 OUTPUT: 1639 OUTPUT:
1968 RETVAL 1640 RETVAL
1969 1641
1970int 1642int
1971nthreads() 1643nthreads ()
1972 PROTOTYPE:
1973 CODE: 1644 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1645 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1646 OUTPUT:
1978 RETVAL 1647 RETVAL
1979 1648
1649int
1650fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1651 CODE:
1652 RETVAL = posix_fadvise (fh, offset, length, advice);
1653 OUTPUT:
1654 RETVAL
1655
1656IV
1657sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1658 CODE:
1659 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1660 OUTPUT:
1661 RETVAL
1662
1663void
1664mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1665 PPCODE:
1666 sv_unmagic (scalar, MMAP_MAGIC);
1667{
1668 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1669 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1670 if (addr == (void *)-1)
1671 XSRETURN_NO;
1672
1673 sv_force_normal (scalar);
1674
1675 /* we store the length in mg_obj, as namlen is I32 :/ */
1676 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1677 ->mg_obj = (SV *)length;
1678
1679 SvUPGRADE (scalar, SVt_PV); /* nop... */
1680
1681 if (!(prot & PROT_WRITE))
1682 SvREADONLY_on (scalar);
1683
1684 if (SvLEN (scalar))
1685 Safefree (SvPVX (scalar));
1686
1687 SvPVX (scalar) = (char *)addr;
1688 SvCUR_set (scalar, length);
1689 SvLEN_set (scalar, 0);
1690 SvPOK_only (scalar);
1691
1692 XSRETURN_YES;
1693}
1694
1695void
1696munmap (SV *scalar)
1697 CODE:
1698 sv_unmagic (scalar, MMAP_MAGIC);
1699
1700int
1701madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1702 ALIAS:
1703 mprotect = 1
1704 CODE:
1705{
1706 STRLEN svlen;
1707 void *addr = SvPVbyte (scalar, svlen);
1708 size_t len = SvUV (length);
1709
1710 if (offset < 0)
1711 offset += svlen;
1712
1713 if (offset < 0 || offset > svlen)
1714 croak ("offset outside of scalar");
1715
1716 if (!SvOK (length) || len + offset > svlen)
1717 len = svlen - offset;
1718
1719 addr = (void *)(((intptr_t)addr) + offset);
1720 eio_page_align (&addr, &len);
1721
1722 switch (ix)
1723 {
1724 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1725 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1726 }
1727}
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1733 CODE:
1734{
1735 STRLEN svlen;
1736 void *addr = SvPVbyte (scalar, svlen);
1737 size_t len = SvUV (length);
1738
1739 if (offset < 0)
1740 offset += svlen;
1741
1742 if (offset < 0 || offset > svlen)
1743 croak ("offset outside of scalar");
1744
1745 if (!SvOK (length) || len + offset > svlen)
1746 len = svlen - offset;
1747
1748 addr = (void *)(((intptr_t)addr) + offset);
1749 eio_page_align (&addr, &len);
1750#if _POSIX_MEMLOCK_RANGE
1751 RETVAL = munlock (addr, len);
1752#else
1753 RETVAL = ((errno = ENOSYS), -1);
1754#endif
1755}
1756 OUTPUT:
1757 RETVAL
1758
1759int
1760munlockall ()
1761 CODE:
1762#if _POSIX_MEMLOCK
1763 munlockall ();
1764#else
1765 RETVAL = -1;
1766 errno = ENOSYS;
1767#endif
1768 OUTPUT:
1769 RETVAL
1770
1771void _on_next_submit (SV *cb)
1772 CODE:
1773 SvREFCNT_dec (on_next_submit);
1774 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1775
1980PROTOTYPES: DISABLE 1776PROTOTYPES: DISABLE
1981 1777
1778MODULE = IO::AIO PACKAGE = IO::AIO::WD
1779
1780BOOT:
1781{
1782 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1783 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1784}
1785
1786void
1787DESTROY (SV *self)
1788 CODE:
1789{
1790 aio_wd wd = SvAIO_WD (self);
1791#if HAVE_AT
1792 SV *callback = &PL_sv_undef;
1793 dREQ; /* clobbers next_pri :/ */
1794 req->type = EIO_WD_CLOSE;
1795 req->wd = wd;
1796 REQ_SEND;
1797#else
1798 eio_wd_close_sync (wd);
1799#endif
1800}
1801
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1802MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1803
1984void 1804void
1985cancel (aio_req_ornot req) 1805cancel (aio_req_ornot req)
1986 CODE: 1806 CODE:
1987 req_cancel (req); 1807 eio_cancel (req);
1988 1808
1989void 1809void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1810cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1811 PPCODE:
1812{
1813 if (GIMME_V != G_VOID)
1814 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1815
1816 if (items > 1)
1817 {
1818 SV *cb_cv =get_cb (callback);
1819
1992 SvREFCNT_dec (req->callback); 1820 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1821 req->callback = SvREFCNT_inc (cb_cv);
1822 }
1823}
1994 1824
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1825MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1826
1997void 1827void
1998add (aio_req grp, ...) 1828add (aio_req grp, ...)
1999 PPCODE: 1829 PPCODE:
2000{ 1830{
2001 int i; 1831 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1832
2007 if (grp->int1 == 2) 1833 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1834 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1835
2010 for (i = 1; i < items; ++i ) 1836 for (i = 1; i < items; ++i )
2011 { 1837 {
1838 aio_req req;
1839
2012 if (GIMME_V != G_VOID) 1840 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1841 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1842
2015 req = SvAIO_REQ (ST (i)); 1843 req = SvAIO_REQ (ST (i));
2016 1844
2017 if (req) 1845 if (req)
2018 { 1846 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1847 }
2031} 1848}
2032 1849
2033void 1850void
2034cancel_subs (aio_req_ornot req) 1851cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1860 AV *av;
2044 1861
2045 grp->errorno = errno; 1862 grp->errorno = errno;
2046 1863
2047 av = newAV (); 1864 av = newAV ();
1865 av_extend (av, items - 1);
2048 1866
2049 for (i = 1; i < items; ++i ) 1867 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1868 av_push (av, newSVsv (ST (i)));
2051 1869
2052 SvREFCNT_dec (grp->sv1); 1870 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1877 grp->errorno = errorno;
2060 1878
2061void 1879void
2062limit (aio_req grp, int limit) 1880limit (aio_req grp, int limit)
2063 CODE: 1881 CODE:
2064 grp->int2 = limit; 1882 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1883
2067void 1884void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1885feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1886 CODE:
2070{ 1887{
2071 SvREFCNT_dec (grp->sv2); 1888 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1889 grp->sv2 = newSVsv (callback);
1890 grp->feed = aio_grp_feed;
2073 1891
2074 if (grp->int2 <= 0) 1892 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1893 grp->int2 = 2;
2076 1894
2077 aio_grp_feed (grp); 1895 eio_grp_limit (grp, grp->int2);
2078} 1896}
2079 1897

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