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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 1.200 by root, Thu Sep 29 09:51:24 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 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
377/* must be called at most once */ 358/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 359static SV *req_sv (aio_req req, HV *stash)
379{ 360{
380 if (!req->self) 361 if (!req->self)
381 { 362 {
382 req->self = (SV *)newHV (); 363 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 365 }
385 366
386 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);
387} 374}
388 375
389static aio_req SvAIO_REQ (SV *sv) 376static aio_req SvAIO_REQ (SV *sv)
390{ 377{
391 MAGIC *mg; 378 MAGIC *mg;
392 379
393 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")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 384 croak ("object of class IO::AIO::REQ expected");
395 385
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 386 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 387
398 return mg ? (aio_req)mg->mg_ptr : 0; 388 return mg ? (aio_req)mg->mg_ptr : 0;
399} 389}
400 390
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
401static void aio_grp_feed (aio_req grp) 401static void aio_grp_feed (aio_req grp)
402{ 402{
403 block_sig (); 403 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 404 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 405 dSP;
412 406
413 ENTER; 407 ENTER;
414 SAVETMPS; 408 SAVETMPS;
415 PUSHMARK (SP); 409 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 410 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 411 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 412 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 413 SPAGAIN;
420 FREETMPS; 414 FREETMPS;
421 LEAVE; 415 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 } 416 }
432
433 unblock_sig ();
434} 417}
435 418
436static void aio_grp_dec (aio_req grp) 419static void req_submit (eio_req *req)
437{ 420{
438 --grp->size; 421 eio_submit (req);
439 422
440 /* call feeder, if applicable */ 423 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 424 {
446 block_sig (); 425 dSP;
426 SV *cb = sv_2mortal (on_next_submit);
447 427
448 if (!req_invoke (grp)) 428 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 429
455 req_destroy (grp); 430 PUSHMARK (SP);
456 unblock_sig (); 431 PUTBACK;
432 call_sv (cb, G_DISCARD | G_EVAL);
457 } 433 }
458} 434}
459 435
460static int req_invoke (aio_req req) 436static int req_invoke (eio_req *req)
461{ 437{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 438 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 439 SvREADONLY_off (req->sv2);
466 440
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 441 if (!EIO_CANCELLED (req) && req->callback)
468 { 442 {
443 dSP;
444 static SV *sv_result_cache; /* caches the result integer SV */
445 SV *sv_result;
446
469 ENTER; 447 ENTER;
470 SAVETMPS; 448 SAVETMPS;
471 PUSHMARK (SP); 449 PUSHMARK (SP);
472 EXTEND (SP, 1); 450 EXTEND (SP, 1);
473 451
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
474 switch (req->type) 465 switch (req->type)
475 { 466 {
467 case EIO_WD_OPEN:
468 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
469 break;
470
476 case REQ_READDIR: 471 case EIO_READDIR:
477 { 472 {
478 SV *rv = &PL_sv_undef; 473 SV *rv = &PL_sv_undef;
479 474
480 if (req->result >= 0) 475 if (req->result >= 0)
481 { 476 {
482 int i; 477 int i;
483 char *buf = req->ptr2; 478 char *names = (char *)req->ptr2;
479 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 480 AV *av = newAV ();
485 481
486 av_extend (av, req->result - 1); 482 av_extend (av, req->result - 1);
487 483
488 for (i = 0; i < req->result; ++i) 484 for (i = 0; i < req->result; ++i)
489 { 485 {
490 SV *sv = newSVpv (buf, 0); 486 if (req->int1 & EIO_READDIR_DENTS)
487 {
488 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 489
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
492 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);
493 buf += SvCUR (sv) + 1; 518 names += SvCUR (name) + 1;
519 }
494 } 520 }
495 521
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 522 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 523 }
498 524
499 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))));
500 } 529 }
501 break; 530 break;
502 531
503 case REQ_OPEN: 532 case EIO_OPEN:
504 { 533 {
505 /* convert fd to fh */ 534 /* convert fd to fh */
506 SV *fh; 535 SV *fh = &PL_sv_undef;
507 536
508 PUSHs (sv_2mortal (newSViv (req->result))); 537 if (req->result >= 0)
509 PUTBACK; 538 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 539 GV *gv = (GV *)sv_newmortal ();
511 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);
512 546
513 fh = POPs; 547 symlen = snprintf (
514 PUSHMARK (SP); 548 sym,
549 sizeof (sym),
550 "%s&=%d",
551 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
552 (int)req->result
553 );
554
555 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
556 fh = (SV *)gv;
557 }
558
515 XPUSHs (fh); 559 PUSHs (fh);
516 } 560 }
517 break; 561 break;
518 562
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
519 case REQ_GROUP: 595 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 596 req->int1 = 2; /* mark group as finished */
521 597
522 if (req->sv1) 598 if (req->sv1)
523 { 599 {
524 int i; 600 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 604 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 605 PUSHs (*av_fetch (av, i, 0));
530 } 606 }
531 break; 607 break;
532 608
533 case REQ_NOP: 609 case EIO_NOP:
534 case REQ_BUSY: 610 case EIO_BUSY:
535 break; 611 break;
536 612
537 case REQ_READLINK: 613 case EIO_READLINK:
614 case EIO_REALPATH:
538 if (req->result > 0) 615 if (req->result > 0)
539 { 616 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; 617 break;
545 618
546 case REQ_STAT: 619 case EIO_STAT:
547 case REQ_LSTAT: 620 case EIO_LSTAT:
548 case REQ_FSTAT: 621 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 622 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
623
550 PL_laststatval = req->result; 624 if (!(PL_laststatval = req->result))
625 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
551 PL_statcache = *(Stat_t *)(req->ptr2); 626 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 627
628 PUSHs (sv_result);
553 break; 629 break;
554 630
555 case REQ_READ: 631 case EIO_READ:
632 {
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 633 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 634 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 635 SvPOK_only (req->sv2);
636 SvSETMAGIC (req->sv2);
637 PUSHs (sv_result);
638 }
559 break; 639 break;
560 640
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
561 default: 646 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 647 PUSHs (sv_result);
563 break; 648 break;
564 } 649 }
565 650
566 errno = req->errorno; 651 errno = req->errorno;
567 652
568 PUTBACK; 653 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 654 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 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;
571 661
572 FREETMPS; 662 FREETMPS;
573 LEAVE; 663 LEAVE;
664
665 PUTBACK;
574 } 666 }
575 667
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); 668 return !!SvTRUE (ERRSV);
591} 669}
592 670
593static void req_destroy (aio_req req) 671static void req_destroy (aio_req req)
594{ 672{
595 if (req->self) 673 if (req->self)
… …
598 SvREFCNT_dec (req->self); 676 SvREFCNT_dec (req->self);
599 } 677 }
600 678
601 SvREFCNT_dec (req->sv1); 679 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 680 SvREFCNT_dec (req->sv2);
681 SvREFCNT_dec (req->sv3);
682 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 683 SvREFCNT_dec (req->callback);
604 684
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 685 Safefree (req);
609} 686}
610 687
611static void req_cancel_subs (aio_req grp) 688static void req_cancel_subs (aio_req grp)
612{ 689{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 690 if (grp->type != EIO_GROUP)
616 return; 691 return;
617 692
618 SvREFCNT_dec (grp->sv2); 693 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 694 grp->sv2 = 0;
620 695
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 696 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 697}
624 698
625static void req_cancel (aio_req req) 699static void create_respipe (void)
626{ 700{
627 req->flags |= FLAG_CANCELLED; 701 if (s_epipe_renew (&respipe))
628
629 req_cancel_subs (req);
630}
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
638static void
639create_pipe (int fd[2])
640{
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"); 702 croak ("IO::AIO: unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655} 703}
656 704
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 () 705static void poll_wait (void)
753{ 706{
754 fd_set rfd;
755
756 while (nreqs) 707 while (eio_nreqs ())
757 { 708 {
758 int size; 709 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 710
711 X_LOCK (reslock);
760 size = res_queue.size; 712 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 713 X_UNLOCK (reslock);
762 714
763 if (size) 715 if (size)
764 return; 716 return;
765 717
766 maybe_start_thread (); 718 etp_maybe_start_thread ();
767 719
768 FD_ZERO (&rfd); 720 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 721 }
773} 722}
774 723
775static int poll_cb () 724static int poll_cb (void)
776{ 725{
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 (;;) 726 for (;;)
790 { 727 {
791 for (;;) 728 int res = eio_poll ();
792 {
793 maybe_start_thread ();
794 729
795 X_LOCK (reslock); 730 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); 731 croak (0);
830 }
831 732
832 count++; 733 if (!max_outstanding || max_outstanding > eio_nreqs ())
833 } 734 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;
851 735
852 poll_wait (); 736 poll_wait ();
853
854 ++maxreqs;
855 } 737 }
738}
856 739
857 unblock_sig (); 740static void ecb_cold
858 return count; 741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
859} 747}
860 748
861/*****************************************************************************/ 749/*****************************************************************************/
862/* work around various missing functions */
863 750
864#if !HAVE_PREADWRITE 751#if !_POSIX_MAPPED_FILES
865# define pread aio_pread 752# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
866# define pwrite aio_pwrite 753# 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 754#endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041 755
1042 if (res < 0 756#if !_POSIX_MEMORY_PROTECTION
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 757# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1044#if __solaris 758# define PROT_NONE 0
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
1046#endif 763#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052 764
1053 res = 0; 765#define MMAP_MAGIC PERL_MAGIC_ext
1054 766
1055 while (count) 767static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1056 { 768{
1057 ssize_t cnt; 769 int old_errno = errno;
1058 770 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 771 errno = old_errno;
1060 772
1061 if (cnt <= 0) 773 mg->mg_obj = 0; /* just in case */
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066 774
1067 cnt = write (ofd, aio_buf, cnt); 775 SvREADONLY_off (sv);
1068 776
1069 if (cnt <= 0) 777 if (SvPVX (sv) != mg->mg_ptr)
1070 { 778 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074 779
1075 offset += cnt; 780 SvCUR_set (sv, 0);
1076 res += cnt; 781 SvPVX (sv) = 0;
1077 count -= cnt; 782 SvOK_off (sv);
1078 }
1079 }
1080 783
1081 return res; 784 return 0;
1082} 785}
1083 786
1084/* read a full directory */ 787static MGVTBL mmap_vtbl = {
1085static void scandir_ (aio_req req, worker *self) 788 0, 0, 0, 0, mmap_free
1086{ 789};
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 790
1145/*****************************************************************************/ 791/*****************************************************************************/
1146 792
1147X_THREAD_PROC (aio_proc) 793static SV * get_cb (SV *cb_sv)
1148{ 794{
1149 {//D 795 SvGETMAGIC (cb_sv);
1150 aio_req req; 796 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} 797}
1382 798
1383#define dREQ \ 799#define dREQ \
800 SV *cb_cv; \
1384 aio_req req; \ 801 aio_req req; \
1385 int req_pri = next_pri; \ 802 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \ 803 next_pri = EIO_PRI_DEFAULT; \
1387 \ 804 \
1388 if (SvOK (callback) && !SvROK (callback)) \ 805 cb_cv = get_cb (callback); \
1389 croak ("callback must be undef or of reference type"); \
1390 \ 806 \
1391 Newz (0, req, 1, aio_cb); \ 807 Newz (0, req, 1, eio_req); \
1392 if (!req) \ 808 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \ 809 croak ("out of memory during eio_req allocation"); \
1394 \ 810 \
1395 req->callback = newSVsv (callback); \ 811 req->callback = SvREFCNT_inc (cb_cv); \
1396 req->pri = req_pri 812 req->pri = req_pri
1397 813
1398#define REQ_SEND \ 814#define REQ_SEND \
815 PUTBACK; \
1399 req_send (req); \ 816 req_submit (req); \
817 SPAGAIN; \
1400 \ 818 \
1401 if (GIMME_V != G_VOID) \ 819 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 820 XPUSHs (req_sv (req, aio_req_stash));
1403 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
1404MODULE = IO::AIO PACKAGE = IO::AIO 878MODULE = IO::AIO PACKAGE = IO::AIO
1405 879
1406PROTOTYPES: ENABLE 880PROTOTYPES: ENABLE
1407 881
1408BOOT: 882BOOT:
1409{ 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
1410 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);
1411 1005
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1006 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1007 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 1008
1425 X_COND_CHECK (reqwait); 1009 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 1010
1431 create_pipe (respipe); 1011 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1012}
1435 1013
1436void 1014void
1015reinit ()
1016 PROTOTYPE:
1017
1018void
1437max_poll_reqs (int nreqs) 1019max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1020 PROTOTYPE: $
1439 CODE: 1021 CODE:
1440 max_poll_reqs = nreqs; 1022 eio_set_max_poll_reqs (nreqs);
1441 1023
1442void 1024void
1443max_poll_time (double nseconds) 1025max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1026 PROTOTYPE: $
1445 CODE: 1027 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1028 eio_set_max_poll_time (nseconds);
1447 1029
1448void 1030void
1449min_parallel (int nthreads) 1031min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1032 PROTOTYPE: $
1459 CODE: 1033 CODE:
1460 set_max_idle (nthreads); 1034 eio_set_min_parallel (nthreads);
1461 1035
1462int 1036void
1463max_outstanding (int maxreqs) 1037max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1038 PROTOTYPE: $
1465 CODE: 1039 CODE:
1466 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:
1467 max_outstanding = maxreqs; 1058 max_outstanding = maxreqs;
1468 OUTPUT: 1059
1469 RETVAL 1060void
1061aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1062 PPCODE:
1063{
1064 dREQ;
1065
1066 req->type = EIO_WD_OPEN;
1067 req_set_path1 (req, pathname);
1068
1069 REQ_SEND;
1070}
1470 1071
1471void 1072void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1073aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1074 PPCODE:
1475{ 1075{
1476 dREQ; 1076 dREQ;
1477 1077
1478 req->type = REQ_OPEN; 1078 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1079 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1080 req->int1 = flags;
1482 req->mode = mode; 1081 req->int2 = mode;
1483 1082
1484 REQ_SEND; 1083 REQ_SEND;
1485} 1084}
1486 1085
1487void 1086void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1087aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1088 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1089 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1090 aio_fdatasync = EIO_FDATASYNC
1091 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1092 PPCODE:
1495{ 1093{
1094 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1095 dREQ;
1497 1096
1498 req->type = ix; 1097 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1098 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1099 req->int1 = fd;
1100
1101 REQ_SEND (req);
1102}
1103
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;
1501 1168
1502 REQ_SEND (req); 1169 REQ_SEND (req);
1503} 1170}
1504 1171
1505void 1172void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1173aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 1174 ALIAS:
1508 aio_read = REQ_READ 1175 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1176 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1177 PPCODE:
1512{ 1178{
1513 STRLEN svlen; 1179 STRLEN svlen;
1180 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1181 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1182 UV len = SvUV (length);
1516 1183
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1184 if (dataoffset < 0)
1521 dataoffset += svlen; 1185 dataoffset += svlen;
1522 1186
1523 if (dataoffset < 0 || dataoffset > svlen) 1187 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1188 croak ("dataoffset outside of data scalar");
1525 1189
1526 if (ix == REQ_WRITE) 1190 if (ix == EIO_WRITE)
1527 { 1191 {
1528 /* write: check length and adjust. */ 1192 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1193 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1194 len = svlen - dataoffset;
1531 } 1195 }
1532 else 1196 else
1533 { 1197 {
1534 /* read: grow scalar as necessary */ 1198 /* read: check type and grow scalar as necessary */
1199 SvUPGRADE (data, SVt_PV);
1535 svptr = SvGROW (data, len + dataoffset + 1); 1200 svptr = SvGROW (data, len + dataoffset + 1);
1536 } 1201 }
1537 1202
1538 if (len < 0)
1539 croak ("length must not be negative");
1540
1541 { 1203 {
1542 dREQ; 1204 dREQ;
1543 1205
1544 req->type = ix; 1206 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1207 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1208 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1209 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1210 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1211 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1212 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1213 req->stroffset = dataoffset;
1553 1214
1554 if (!SvREADONLY (data)) 1215 if (!SvREADONLY (data))
1555 { 1216 {
1556 SvREADONLY_on (data); 1217 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1221 REQ_SEND;
1561 } 1222 }
1562} 1223}
1563 1224
1564void 1225void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1226aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1566 PROTOTYPE: $$;$ 1227 ALIAS:
1228 aio_readlink = EIO_READLINK
1229 aio_realpath = EIO_REALPATH
1567 PPCODE: 1230 PPCODE:
1568{ 1231{
1569 SV *data;
1570 dREQ; 1232 dREQ;
1571 1233
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 1234 req->type = ix;
1576 req->sv1 = newSVsv (path); 1235 req_set_path1 (req, pathname);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 1236
1581 REQ_SEND; 1237 REQ_SEND;
1582} 1238}
1583 1239
1584void 1240void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1241aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE: 1242 PPCODE:
1588{ 1243{
1244 int ifd = s_fileno_croak (in_fh , 0);
1245 int ofd = s_fileno_croak (out_fh, 1);
1589 dREQ; 1246 dREQ;
1590 1247
1591 req->type = REQ_SENDFILE; 1248 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 1249 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1250 req->int1 = ofd;
1594 req->sv2 = newSVsv (in_fh); 1251 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1252 req->int2 = ifd;
1596 req->offs = SvVAL64 (in_offset); 1253 req->offs = in_offset;
1597 req->size = length; 1254 req->size = length;
1598 1255
1599 REQ_SEND; 1256 REQ_SEND;
1600} 1257}
1601 1258
1602void 1259void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1260aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE: 1261 PPCODE:
1606{ 1262{
1263 int fd = s_fileno_croak (fh, 0);
1607 dREQ; 1264 dREQ;
1608 1265
1609 req->type = REQ_READAHEAD; 1266 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 1267 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1268 req->int1 = fd;
1612 req->offs = SvVAL64 (offset); 1269 req->offs = offset;
1613 req->size = length; 1270 req->size = length;
1614 1271
1615 REQ_SEND; 1272 REQ_SEND;
1616} 1273}
1617 1274
1618void 1275void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1276aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 1277 ALIAS:
1621 aio_stat = REQ_STAT 1278 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 1279 aio_lstat = EIO_LSTAT
1280 aio_statvfs = EIO_STATVFS
1623 PPCODE: 1281 PPCODE:
1624{ 1282{
1625 dREQ; 1283 dREQ;
1626 1284
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); 1285 req->sv1 = newSVsv (fh_or_path);
1636 1286 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; 1287 REQ_SEND;
1649} 1288}
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
1650 1305
1651void 1306void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1307aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1653 PPCODE: 1308 PPCODE:
1654{ 1309{
1655 dREQ; 1310 dREQ;
1656 1311
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1312 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1313 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1314 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 1315
1672 REQ_SEND; 1316 REQ_SEND;
1673} 1317}
1674 1318
1675void 1319void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1320aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1677 PPCODE: 1321 PPCODE:
1678{ 1322{
1679 dREQ; 1323 dREQ;
1680 1324
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1325 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1326 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 1327
1695 REQ_SEND; 1328 REQ_SEND;
1696} 1329}
1697 1330
1698void 1331void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1332aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1700 PPCODE: 1333 PPCODE:
1701{ 1334{
1702 dREQ; 1335 dREQ;
1703 1336
1704 req->mode = mode; 1337 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1338 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 1339
1718 REQ_SEND; 1340 REQ_SEND;
1719} 1341}
1720 1342
1721void 1343void
… …
1724{ 1346{
1725 dREQ; 1347 dREQ;
1726 1348
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1349 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1350 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1351 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730 1352
1731 if (SvPOK (fh_or_path)) 1353 REQ_SEND;
1732 { 1354}
1733 req->type = REQ_CHOWN; 1355
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 1356void
1735 } 1357aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1736 else 1358 PPCODE:
1737 { 1359{
1738 req->type = REQ_FCHOWN; 1360 dREQ;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1361
1740 } 1362 req->type = EIO_READDIR;
1363 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1364
1365 if (flags & EIO_READDIR_DENTS)
1366 req->int1 |= EIO_READDIR_CUSTOM2;
1367
1368 req_set_path1 (req, pathname);
1369
1370 REQ_SEND;
1371}
1372
1373void
1374aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1375 PPCODE:
1376{
1377 dREQ;
1378
1379 req->type = EIO_MKDIR;
1380 req->int2 = mode;
1381 req_set_path1 (req, pathname);
1741 1382
1742 REQ_SEND; 1383 REQ_SEND;
1743} 1384}
1744 1385
1745void 1386void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1387aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 1388 ALIAS:
1748 aio_unlink = REQ_UNLINK 1389 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1390 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1391 aio_readdir = EIO_READDIR
1751 PPCODE: 1392 PPCODE:
1752{ 1393{
1753 dREQ; 1394 dREQ;
1754 1395
1755 req->type = ix; 1396 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1397 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758 1398
1759 REQ_SEND; 1399 REQ_SEND;
1760} 1400}
1761 1401
1762void 1402void
1403aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1404 ALIAS:
1405 aio_link = EIO_LINK
1406 aio_symlink = EIO_SYMLINK
1407 aio_rename = EIO_RENAME
1408 PPCODE:
1409{
1410 dREQ;
1411 eio_wd wd2 = 0;
1412
1413 req->type = ix;
1414 req_set_path1 (req, oldpath);
1415 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1416 req->int3 = (long)wd2;
1417
1418 REQ_SEND;
1419}
1420
1421void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1422aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1764 PPCODE: 1423 PPCODE:
1765{ 1424{
1766 dREQ; 1425 dREQ;
1767 1426
1768 req->type = REQ_MKDIR; 1427 req->type = EIO_MKNOD;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode; 1428 req->int2 = (mode_t)mode;
1772 1429 req->offs = dev;
1773 REQ_SEND; 1430 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 1431
1792 REQ_SEND; 1432 REQ_SEND;
1793} 1433}
1794 1434
1795void 1435void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1436aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1437 ALIAS:
1438 aio_mtouch = EIO_MTOUCH
1439 aio_msync = EIO_MSYNC
1440 PPCODE:
1441{
1442 STRLEN svlen;
1443 char *svptr = SvPVbyte (data, svlen);
1444 UV len = SvUV (length);
1445
1446 if (offset < 0)
1447 offset += svlen;
1448
1449 if (offset < 0 || offset > svlen)
1450 croak ("offset outside of scalar");
1451
1452 if (!SvOK (length) || len + offset > svlen)
1453 len = svlen - offset;
1454
1455 {
1456 dREQ;
1457
1458 req->type = ix;
1459 req->sv2 = SvREFCNT_inc (data);
1460 req->ptr2 = (char *)svptr + offset;
1461 req->size = len;
1462 req->int1 = flags;
1463
1464 REQ_SEND;
1465 }
1466}
1467
1468void
1469aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1470 PPCODE:
1471{
1472 STRLEN svlen;
1473 char *svptr = SvPVbyte (data, svlen);
1474 UV len = SvUV (length);
1475
1476 if (offset < 0)
1477 offset += svlen;
1478
1479 if (offset < 0 || offset > svlen)
1480 croak ("offset outside of scalar");
1481
1482 if (!SvOK (length) || len + offset > svlen)
1483 len = svlen - offset;
1484
1485 {
1486 dREQ;
1487
1488 req->type = EIO_MLOCK;
1489 req->sv2 = SvREFCNT_inc (data);
1490 req->ptr2 = (char *)svptr + offset;
1491 req->size = len;
1492
1493 REQ_SEND;
1494 }
1495}
1496
1497void
1498aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1499 PPCODE:
1500{
1501 dREQ;
1502
1503 req->type = EIO_MLOCKALL;
1504 req->int1 = flags;
1505
1506 REQ_SEND;
1507}
1508
1509void
1510aio_busy (double delay, SV *callback=&PL_sv_undef)
1797 PPCODE: 1511 PPCODE:
1798{ 1512{
1799 dREQ; 1513 dREQ;
1800 1514
1801 req->type = REQ_MKNOD; 1515 req->type = EIO_BUSY;
1802 req->sv1 = newSVsv (pathname); 1516 req->nv1 = delay < 0. ? 0. : delay;
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1517
1804 req->mode = (mode_t)mode;
1805 req->offs = dev;
1806
1807 REQ_SEND; 1518 REQ_SEND;
1808} 1519}
1809 1520
1810void 1521void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1522aio_group (SV *callback=&PL_sv_undef)
1812 PPCODE: 1523 PPCODE:
1813{ 1524{
1814 dREQ; 1525 dREQ;
1815 1526
1816 req->type = REQ_BUSY; 1527 req->type = EIO_GROUP;
1817 req->nv1 = delay < 0. ? 0. : delay;
1818 1528
1819 REQ_SEND; 1529 req_submit (req);
1530 XPUSHs (req_sv (req, aio_grp_stash));
1820} 1531}
1821 1532
1822void 1533void
1823aio_group (SV *callback=&PL_sv_undef) 1534aio_nop (SV *callback=&PL_sv_undef)
1824 PROTOTYPE: ;$ 1535 ALIAS:
1825 PPCODE: 1536 aio_nop = EIO_NOP
1537 aio_sync = EIO_SYNC
1538 PPCODE:
1826{ 1539{
1827 dREQ; 1540 dREQ;
1828 1541
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; 1542 req->type = ix;
1842 1543
1843 REQ_SEND; 1544 REQ_SEND;
1844} 1545}
1845 1546
1846int 1547int
1847aioreq_pri (int pri = 0) 1548aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$
1849 CODE: 1549 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1550 RETVAL = next_pri;
1851 if (items > 0) 1551 if (items > 0)
1852 { 1552 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1553 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1554 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1555 next_pri = pri;
1856 } 1556 }
1857 OUTPUT: 1557 OUTPUT:
1858 RETVAL 1558 RETVAL
1859 1559
1860void 1560void
1861aioreq_nice (int nice = 0) 1561aioreq_nice (int nice = 0)
1862 CODE: 1562 CODE:
1863 nice = next_pri - nice; 1563 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1564 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1565 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1566 next_pri = nice;
1867 1567
1868void 1568void
1869flush () 1569flush ()
1870 PROTOTYPE:
1871 CODE: 1570 CODE:
1872 while (nreqs) 1571 while (eio_nreqs ())
1873 { 1572 {
1874 poll_wait (); 1573 poll_wait ();
1875 poll_cb (); 1574 poll_cb ();
1876 } 1575 }
1877 1576
1878int 1577int
1879poll() 1578poll ()
1880 PROTOTYPE:
1881 CODE: 1579 CODE:
1882 poll_wait (); 1580 poll_wait ();
1883 RETVAL = poll_cb (); 1581 RETVAL = poll_cb ();
1884 OUTPUT: 1582 OUTPUT:
1885 RETVAL 1583 RETVAL
1886 1584
1887int 1585int
1888poll_fileno() 1586poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1587 CODE:
1891 RETVAL = respipe [0]; 1588 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1589 OUTPUT:
1893 RETVAL 1590 RETVAL
1894 1591
1895int 1592int
1896poll_cb(...) 1593poll_cb (...)
1897 PROTOTYPE: 1594 PROTOTYPE:
1898 CODE: 1595 CODE:
1899 RETVAL = poll_cb (); 1596 RETVAL = poll_cb ();
1900 OUTPUT: 1597 OUTPUT:
1901 RETVAL 1598 RETVAL
1902 1599
1903void 1600void
1904poll_wait() 1601poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1602 CODE:
1907 poll_wait (); 1603 poll_wait ();
1908 1604
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 1605int
1947nreqs() 1606nreqs ()
1948 PROTOTYPE:
1949 CODE: 1607 CODE:
1950 RETVAL = nreqs; 1608 RETVAL = eio_nreqs ();
1951 OUTPUT: 1609 OUTPUT:
1952 RETVAL 1610 RETVAL
1953 1611
1954int 1612int
1955nready() 1613nready ()
1956 PROTOTYPE:
1957 CODE: 1614 CODE:
1958 RETVAL = get_nready (); 1615 RETVAL = eio_nready ();
1959 OUTPUT: 1616 OUTPUT:
1960 RETVAL 1617 RETVAL
1961 1618
1962int 1619int
1963npending() 1620npending ()
1964 PROTOTYPE:
1965 CODE: 1621 CODE:
1966 RETVAL = get_npending (); 1622 RETVAL = eio_npending ();
1967 OUTPUT: 1623 OUTPUT:
1968 RETVAL 1624 RETVAL
1969 1625
1970int 1626int
1971nthreads() 1627nthreads ()
1972 PROTOTYPE:
1973 CODE: 1628 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1629 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1630 OUTPUT:
1978 RETVAL 1631 RETVAL
1979 1632
1633int
1634fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1635 CODE:
1636 RETVAL = posix_fadvise (fh, offset, length, advice);
1637 OUTPUT:
1638 RETVAL
1639
1640IV
1641sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1642 CODE:
1643 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1644 OUTPUT:
1645 RETVAL
1646
1647void
1648mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1649 PPCODE:
1650 sv_unmagic (scalar, MMAP_MAGIC);
1651{
1652 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1653 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1654 if (addr == (void *)-1)
1655 XSRETURN_NO;
1656
1657 sv_force_normal (scalar);
1658
1659 /* we store the length in mg_obj, as namlen is I32 :/ */
1660 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1661 ->mg_obj = (SV *)length;
1662
1663 SvUPGRADE (scalar, SVt_PV); /* nop... */
1664
1665 if (!(prot & PROT_WRITE))
1666 SvREADONLY_on (scalar);
1667
1668 if (SvLEN (scalar))
1669 Safefree (SvPVX (scalar));
1670
1671 SvPVX (scalar) = (char *)addr;
1672 SvCUR_set (scalar, length);
1673 SvLEN_set (scalar, 0);
1674 SvPOK_only (scalar);
1675
1676 XSRETURN_YES;
1677}
1678
1679void
1680munmap (SV *scalar)
1681 CODE:
1682 sv_unmagic (scalar, MMAP_MAGIC);
1683
1684int
1685madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1686 ALIAS:
1687 mprotect = 1
1688 CODE:
1689{
1690 STRLEN svlen;
1691 void *addr = SvPVbyte (scalar, svlen);
1692 size_t len = SvUV (length);
1693
1694 if (offset < 0)
1695 offset += svlen;
1696
1697 if (offset < 0 || offset > svlen)
1698 croak ("offset outside of scalar");
1699
1700 if (!SvOK (length) || len + offset > svlen)
1701 len = svlen - offset;
1702
1703 addr = (void *)(((intptr_t)addr) + offset);
1704 eio_page_align (&addr, &len);
1705
1706 switch (ix)
1707 {
1708 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1709 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1710 }
1711}
1712 OUTPUT:
1713 RETVAL
1714
1715int
1716munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1717 CODE:
1718{
1719 STRLEN svlen;
1720 void *addr = SvPVbyte (scalar, svlen);
1721 size_t len = SvUV (length);
1722
1723 if (offset < 0)
1724 offset += svlen;
1725
1726 if (offset < 0 || offset > svlen)
1727 croak ("offset outside of scalar");
1728
1729 if (!SvOK (length) || len + offset > svlen)
1730 len = svlen - offset;
1731
1732 addr = (void *)(((intptr_t)addr) + offset);
1733 eio_page_align (&addr, &len);
1734#if _POSIX_MEMLOCK_RANGE
1735 RETVAL = munlock (addr, len);
1736#else
1737 RETVAL = ((errno = ENOSYS), -1);
1738#endif
1739}
1740 OUTPUT:
1741 RETVAL
1742
1743int
1744munlockall ()
1745 CODE:
1746#if _POSIX_MEMLOCK
1747 munlockall ();
1748#else
1749 RETVAL = -1;
1750 errno = ENOSYS;
1751#endif
1752 OUTPUT:
1753 RETVAL
1754
1755void _on_next_submit (SV *cb)
1756 CODE:
1757 SvREFCNT_dec (on_next_submit);
1758 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1759
1980PROTOTYPES: DISABLE 1760PROTOTYPES: DISABLE
1981 1761
1762MODULE = IO::AIO PACKAGE = IO::AIO::WD
1763
1764BOOT:
1765{
1766 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1767 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1768}
1769
1770void
1771DESTROY (SV *self)
1772 CODE:
1773{
1774 aio_wd wd = SvAIO_WD (self);
1775#if HAVE_AT
1776 SV *callback = &PL_sv_undef;
1777 dREQ; /* clobbers next_pri :/ */
1778 req->type = EIO_WD_CLOSE;
1779 req->wd = wd;
1780 REQ_SEND;
1781#else
1782 eio_wd_close_sync (wd);
1783#endif
1784}
1785
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1786MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1787
1984void 1788void
1985cancel (aio_req_ornot req) 1789cancel (aio_req_ornot req)
1986 CODE: 1790 CODE:
1987 req_cancel (req); 1791 eio_cancel (req);
1988 1792
1989void 1793void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1794cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1795 PPCODE:
1796{
1797 if (GIMME_V != G_VOID)
1798 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1799
1800 if (items > 1)
1801 {
1802 SV *cb_cv =get_cb (callback);
1803
1992 SvREFCNT_dec (req->callback); 1804 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1805 req->callback = SvREFCNT_inc (cb_cv);
1806 }
1807}
1994 1808
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1809MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1810
1997void 1811void
1998add (aio_req grp, ...) 1812add (aio_req grp, ...)
1999 PPCODE: 1813 PPCODE:
2000{ 1814{
2001 int i; 1815 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 1816
2007 if (grp->int1 == 2) 1817 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1818 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1819
2010 for (i = 1; i < items; ++i ) 1820 for (i = 1; i < items; ++i )
2011 { 1821 {
1822 aio_req req;
1823
2012 if (GIMME_V != G_VOID) 1824 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1825 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1826
2015 req = SvAIO_REQ (ST (i)); 1827 req = SvAIO_REQ (ST (i));
2016 1828
2017 if (req) 1829 if (req)
2018 { 1830 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 } 1831 }
2031} 1832}
2032 1833
2033void 1834void
2034cancel_subs (aio_req_ornot req) 1835cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 1844 AV *av;
2044 1845
2045 grp->errorno = errno; 1846 grp->errorno = errno;
2046 1847
2047 av = newAV (); 1848 av = newAV ();
1849 av_extend (av, items - 1);
2048 1850
2049 for (i = 1; i < items; ++i ) 1851 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 1852 av_push (av, newSVsv (ST (i)));
2051 1853
2052 SvREFCNT_dec (grp->sv1); 1854 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 1861 grp->errorno = errorno;
2060 1862
2061void 1863void
2062limit (aio_req grp, int limit) 1864limit (aio_req grp, int limit)
2063 CODE: 1865 CODE:
2064 grp->int2 = limit; 1866 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1867
2067void 1868void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1869feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1870 CODE:
2070{ 1871{
2071 SvREFCNT_dec (grp->sv2); 1872 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 1873 grp->sv2 = newSVsv (callback);
1874 grp->feed = aio_grp_feed;
2073 1875
2074 if (grp->int2 <= 0) 1876 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1877 grp->int2 = 2;
2076 1878
2077 aio_grp_feed (grp); 1879 eio_grp_limit (grp, grp->int2);
2078} 1880}
2079 1881

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