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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC vs.
Revision 1.196 by root, Tue Sep 27 00:41:51 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_osf [2], respipe [2] = { -1, -1 };
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;
550 PL_laststatval = req->result; 623 PL_laststatval = req->result;
624 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
551 PL_statcache = *(Stat_t *)(req->ptr2); 625 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 626 PUSHs (sv_result);
553 break; 627 break;
554 628
555 case REQ_READ: 629 case EIO_READ:
630 {
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 631 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 632 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 633 SvPOK_only (req->sv2);
634 SvSETMAGIC (req->sv2);
635 PUSHs (sv_result);
636 }
559 break; 637 break;
560 638
639 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
640 if (req->result > 0)
641 SvIV_set (sv_result, 0);
642 /* FALLTHROUGH */
643
561 default: 644 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 645 PUSHs (sv_result);
563 break; 646 break;
564 } 647 }
565 648
566 errno = req->errorno; 649 errno = req->errorno;
567 650
568 PUTBACK; 651 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 652 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 653 SPAGAIN;
654
655 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
656 SvREFCNT_dec (sv_result);
657 else
658 sv_result_cache = sv_result;
571 659
572 FREETMPS; 660 FREETMPS;
573 LEAVE; 661 LEAVE;
662
663 PUTBACK;
574 } 664 }
575 665
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); 666 return !!SvTRUE (ERRSV);
591} 667}
592 668
593static void req_destroy (aio_req req) 669static void req_destroy (aio_req req)
594{ 670{
595 if (req->self) 671 if (req->self)
… …
598 SvREFCNT_dec (req->self); 674 SvREFCNT_dec (req->self);
599 } 675 }
600 676
601 SvREFCNT_dec (req->sv1); 677 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 678 SvREFCNT_dec (req->sv2);
679 SvREFCNT_dec (req->sv3);
680 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 681 SvREFCNT_dec (req->callback);
604 682
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 683 Safefree (req);
609} 684}
610 685
611static void req_cancel_subs (aio_req grp) 686static void req_cancel_subs (aio_req grp)
612{ 687{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 688 if (grp->type != EIO_GROUP)
616 return; 689 return;
617 690
618 SvREFCNT_dec (grp->sv2); 691 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 692 grp->sv2 = 0;
620 693
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 694 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 695}
624 696
625static void req_cancel (aio_req req) 697static void create_respipe (void)
626{ 698{
627 req->flags |= FLAG_CANCELLED;
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_respipe ()
640{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe)) 699 if (s_epipe_renew (&respipe))
650#endif
651 croak ("unable to initialize result pipe"); 700 croak ("IO::AIO: unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674} 701}
675 702
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait () 703static void poll_wait (void)
772{ 704{
773 fd_set rfd;
774
775 while (nreqs) 705 while (eio_nreqs ())
776 { 706 {
777 int size; 707 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 708
709 X_LOCK (reslock);
779 size = res_queue.size; 710 size = res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 711 X_UNLOCK (reslock);
781 712
782 if (size) 713 if (size)
783 return; 714 return;
784 715
785 maybe_start_thread (); 716 etp_maybe_start_thread ();
786 717
787 FD_ZERO (&rfd); 718 s_epipe_wait (&respipe);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
791 } 719 }
792} 720}
793 721
794static int poll_cb () 722static int poll_cb (void)
795{ 723{
796 dSP;
797 int count = 0;
798 int maxreqs = max_poll_reqs;
799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
807
808 for (;;) 724 for (;;)
809 { 725 {
810 for (;;) 726 int res = eio_poll ();
811 {
812 maybe_start_thread ();
813 727
814 X_LOCK (reslock); 728 if (res > 0)
815 req = reqq_shift (&res_queue);
816
817 if (req)
818 {
819 --npending;
820
821 if (!res_queue.size)
822 {
823 /* read any signals sent by the worker threads */
824 char buf [4];
825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 }
842 else
843 {
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0); 729 croak (0);
849 }
850 730
851 count++; 731 if (!max_outstanding || max_outstanding > eio_nreqs ())
852 } 732 return res;
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
865 }
866 }
867
868 if (nreqs <= max_outstanding)
869 break;
870 733
871 poll_wait (); 734 poll_wait ();
872
873 ++maxreqs;
874 } 735 }
736}
875 737
876 unblock_sig (); 738static void ecb_cold
877 return count; 739reinit (void)
740{
741 create_respipe ();
742
743 if (eio_init (want_poll, done_poll) < 0)
744 croak ("IO::AIO: unable to initialise eio library");
878} 745}
879 746
880/*****************************************************************************/ 747/*****************************************************************************/
881/* work around various missing functions */
882 748
883#if !HAVE_PREADWRITE 749#if !_POSIX_MAPPED_FILES
884# define pread aio_pread 750# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
885# define pwrite aio_pwrite 751# define munmap(addr,length) (errno = ENOSYS, -1)
886
887/*
888 * make our pread/pwrite safe against themselves, but not against
889 * normal read/write by using a mutex. slows down execution a lot,
890 * but that's your problem, not mine.
891 */
892static mutex_t preadwritelock = X_MUTEX_INIT;
893
894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
895{
896 ssize_t res;
897 off_t ooffset;
898
899 X_LOCK (preadwritelock);
900 ooffset = lseek (fd, 0, SEEK_CUR);
901 lseek (fd, offset, SEEK_SET);
902 res = read (fd, buf, count);
903 lseek (fd, ooffset, SEEK_SET);
904 X_UNLOCK (preadwritelock);
905
906 return res;
907}
908
909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
910{
911 ssize_t res;
912 off_t ooffset;
913
914 X_LOCK (preadwritelock);
915 ooffset = lseek (fd, 0, SEEK_CUR);
916 lseek (fd, offset, SEEK_SET);
917 res = write (fd, buf, count);
918 lseek (fd, offset, SEEK_SET);
919 X_UNLOCK (preadwritelock);
920
921 return res;
922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
951#endif
952
953#if !HAVE_FDATASYNC
954# define fdatasync fsync
955#endif
956
957#if !HAVE_READAHEAD
958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
959
960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
961{
962 size_t todo = count;
963 dBUF;
964
965 while (todo > 0)
966 {
967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
968
969 pread (fd, aio_buf, len, offset);
970 offset += len;
971 todo -= len;
972 }
973
974 errno = 0;
975 return count;
976}
977
978#endif
979
980#if !HAVE_READDIR_R
981# define readdir_r aio_readdir_r
982
983static mutex_t readdirlock = X_MUTEX_INIT;
984
985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
986{
987 X_DIRENT *e;
988 int errorno;
989
990 X_LOCK (readdirlock);
991
992 e = readdir (dirp);
993 errorno = errno;
994
995 if (e)
996 {
997 *res = ent;
998 strcpy (ent->d_name, e->d_name);
999 }
1000 else
1001 *res = 0;
1002
1003 X_UNLOCK (readdirlock);
1004
1005 errno = errorno;
1006 return e ? 0 : -1;
1007}
1008#endif
1009
1010/* sendfile always needs emulation */
1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1012{
1013 ssize_t res;
1014
1015 if (!count)
1016 return 0;
1017
1018#if HAVE_SENDFILE
1019# if __linux
1020 res = sendfile (ofd, ifd, &offset, count);
1021
1022# elif __freebsd
1023 /*
1024 * Of course, the freebsd sendfile is a dire hack with no thoughts
1025 * wasted on making it similar to other I/O functions.
1026 */
1027 {
1028 off_t sbytes;
1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1030
1031 if (res < 0 && sbytes)
1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1033 res = sbytes;
1034 }
1035
1036# elif __hpux
1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
1038
1039# elif __solaris
1040 {
1041 struct sendfilevec vec;
1042 size_t sbytes;
1043
1044 vec.sfv_fd = ifd;
1045 vec.sfv_flag = 0;
1046 vec.sfv_off = offset;
1047 vec.sfv_len = count;
1048
1049 res = sendfilev (ofd, &vec, 1, &sbytes);
1050
1051 if (res < 0 && sbytes)
1052 res = sbytes;
1053 }
1054
1055# endif 752#endif
1056#else
1057 res = -1;
1058 errno = ENOSYS;
1059#endif
1060 753
1061 if (res < 0 754#if !_POSIX_MEMORY_PROTECTION
1062 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 755# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1063#if __solaris 756# define PROT_NONE 0
1064 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 757# define PROT_WRITE 0
758# define MAP_PRIVATE 0
759# define MAP_SHARED 0
760# define MAP_FIXED 0
1065#endif 761#endif
1066 )
1067 )
1068 {
1069 /* emulate sendfile. this is a major pain in the ass */
1070 dBUF;
1071 762
1072 res = 0; 763#define MMAP_MAGIC PERL_MAGIC_ext
1073 764
1074 while (count) 765static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1075 { 766{
1076 ssize_t cnt; 767 int old_errno = errno;
1077 768 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1078 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 769 errno = old_errno;
1079 770
1080 if (cnt <= 0) 771 mg->mg_obj = 0; /* just in case */
1081 {
1082 if (cnt && !res) res = -1;
1083 break;
1084 }
1085 772
1086 cnt = write (ofd, aio_buf, cnt); 773 SvREADONLY_off (sv);
1087 774
1088 if (cnt <= 0) 775 if (SvPVX (sv) != mg->mg_ptr)
1089 { 776 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1090 if (cnt && !res) res = -1;
1091 break;
1092 }
1093 777
1094 offset += cnt; 778 SvCUR_set (sv, 0);
1095 res += cnt; 779 SvPVX (sv) = 0;
1096 count -= cnt; 780 SvOK_off (sv);
1097 }
1098 }
1099 781
1100 return res; 782 return 0;
1101} 783}
1102 784
1103/* read a full directory */ 785static MGVTBL mmap_vtbl = {
1104static void scandir_ (aio_req req, worker *self) 786 0, 0, 0, 0, mmap_free
1105{ 787};
1106 DIR *dirp;
1107 union
1108 {
1109 X_DIRENT d;
1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1111 } *u;
1112 X_DIRENT *entp;
1113 char *name, *names;
1114 int memlen = 4096;
1115 int memofs = 0;
1116 int res = 0;
1117
1118 X_LOCK (wrklock);
1119 self->dirp = dirp = opendir (req->ptr1);
1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
1124
1125 if (dirp && u && names)
1126 for (;;)
1127 {
1128 errno = 0;
1129 readdir_r (dirp, &u->d, &entp);
1130
1131 if (!entp)
1132 break;
1133
1134 name = entp->d_name;
1135
1136 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1137 {
1138 int len = strlen (name) + 1;
1139
1140 res++;
1141
1142 while (memofs + len > memlen)
1143 {
1144 memlen *= 2;
1145 X_LOCK (wrklock);
1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
1149 if (!names)
1150 break;
1151 }
1152
1153 memcpy (names + memofs, name, len);
1154 memofs += len;
1155 }
1156 }
1157
1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162}
1163 788
1164/*****************************************************************************/ 789/*****************************************************************************/
1165 790
1166X_THREAD_PROC (aio_proc) 791static SV * get_cb (SV *cb_sv)
1167{ 792{
1168 {//D 793 SvGETMAGIC (cb_sv);
1169 aio_req req; 794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
1177 {
1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1179
1180 X_LOCK (reqlock);
1181
1182 for (;;)
1183 {
1184 self->req = req = reqq_shift (&req_queue);
1185
1186 if (req)
1187 break;
1188
1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
1210 }
1211
1212 --nready;
1213
1214 X_UNLOCK (reqlock);
1215
1216 errno = 0; /* strictly unnecessary */
1217
1218 if (!(req->flags & FLAG_CANCELLED))
1219 switch (req->type)
1220 {
1221 case REQ_READ: req->result = req->offs >= 0
1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1227
1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1230
1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1243 case REQ_CLOSE: req->result = close (req->int1); break;
1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1252
1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1255 case REQ_READDIR: scandir_ (req, self); break;
1256
1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1261 {
1262 struct timeval tv;
1263
1264 tv.tv_sec = req->nv1;
1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1266
1267 req->result = select (0, 0, 0, 0, &tv);
1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
1295
1296 case REQ_GROUP:
1297 case REQ_NOP:
1298 break;
1299
1300 case REQ_QUIT:
1301 goto quit;
1302
1303 default:
1304 req->result = -1;
1305 break;
1306 }
1307
1308 req->errorno = errno;
1309
1310 X_LOCK (reslock);
1311
1312 ++npending;
1313
1314 if (!reqq_push (&res_queue, req))
1315 {
1316 /* write a dummy byte to the pipe so fh becomes ready */
1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1318
1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
1328 }
1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
1334
1335 return 0;
1336 }//D
1337}
1338
1339/*****************************************************************************/
1340
1341static void atfork_prepare (void)
1342{
1343 X_LOCK (wrklock);
1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
1346#if !HAVE_PREADWRITE
1347 X_LOCK (preadwritelock);
1348#endif
1349#if !HAVE_READDIR_R
1350 X_LOCK (readdirlock);
1351#endif
1352}
1353
1354static void atfork_parent (void)
1355{
1356#if !HAVE_READDIR_R
1357 X_UNLOCK (readdirlock);
1358#endif
1359#if !HAVE_PREADWRITE
1360 X_UNLOCK (preadwritelock);
1361#endif
1362 X_UNLOCK (reslock);
1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
1365}
1366
1367static void atfork_child (void)
1368{
1369 aio_req prv;
1370
1371 while (prv = reqq_shift (&req_queue))
1372 req_destroy (prv);
1373
1374 while (prv = reqq_shift (&res_queue))
1375 req_destroy (prv);
1376
1377 while (wrk_first.next != &wrk_first)
1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
1394 create_respipe ();
1395
1396 atfork_parent ();
1397} 795}
1398 796
1399#define dREQ \ 797#define dREQ \
798 SV *cb_cv; \
1400 aio_req req; \ 799 aio_req req; \
1401 int req_pri = next_pri; \ 800 int req_pri = next_pri; \
1402 next_pri = DEFAULT_PRI + PRI_BIAS; \ 801 next_pri = EIO_PRI_DEFAULT; \
1403 \ 802 \
1404 if (SvOK (callback) && !SvROK (callback)) \ 803 cb_cv = get_cb (callback); \
1405 croak ("callback must be undef or of reference type"); \
1406 \ 804 \
1407 Newz (0, req, 1, aio_cb); \ 805 Newz (0, req, 1, eio_req); \
1408 if (!req) \ 806 if (!req) \
1409 croak ("out of memory during aio_req allocation"); \ 807 croak ("out of memory during eio_req allocation"); \
1410 \ 808 \
1411 req->callback = newSVsv (callback); \ 809 req->callback = SvREFCNT_inc (cb_cv); \
1412 req->pri = req_pri 810 req->pri = req_pri
1413 811
1414#define REQ_SEND \ 812#define REQ_SEND \
813 PUTBACK; \
1415 req_send (req); \ 814 req_submit (req); \
815 SPAGAIN; \
1416 \ 816 \
1417 if (GIMME_V != G_VOID) \ 817 if (GIMME_V != G_VOID) \
1418 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 818 XPUSHs (req_sv (req, aio_req_stash));
1419 819
820static void
821req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
822{
823 if (SvROK (path))
824 {
825 AV *av = (AV *)SvRV (path);
826 SV *wdob;
827
828 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
829 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
830
831 path = AvARRAY (av)[1];
832 wdob = AvARRAY (av)[0];
833
834 if (SvOK (wdob))
835 {
836 *wd = SvAIO_WD (wdob);
837 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 }
839 else
840 *wd = EIO_INVALID_WD;
841 }
842
843 *pathsv = newSVsv (path);
844 *ptr = SvPVbyte_nolen (*pathsv);
845}
846
847static void
848req_set_path1 (aio_req req, SV *path)
849{
850 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
851}
852
853static void
854req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
855{
856 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
857
858 switch (SvTYPE (rv))
859 {
860 case SVt_PVIO:
861 case SVt_PVLV:
862 case SVt_PVGV:
863 req->type = type_fh;
864 req->sv1 = newSVsv (fh_or_path);
865 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
866 break;
867
868 default:
869 req->type = type_path;
870 req_set_path1 (req, fh_or_path);
871 break;
872 }
873
874}
875
1420MODULE = IO::AIO PACKAGE = IO::AIO 876MODULE = IO::AIO PACKAGE = IO::AIO
1421 877
1422PROTOTYPES: ENABLE 878PROTOTYPES: ENABLE
1423 879
1424BOOT: 880BOOT:
1425{ 881{
882 static const struct {
883 const char *name;
884 IV iv;
885 } *civ, const_iv[] = {
886# define const_niv(name, value) { # name, (IV) value },
887# define const_iv(name) { # name, (IV) name },
888# define const_eio(name) { # name, (IV) EIO_ ## name },
889 const_iv (EXDEV)
890 const_iv (ENOSYS)
891 const_iv (O_RDONLY)
892 const_iv (O_WRONLY)
893 const_iv (O_RDWR)
894 const_iv (O_CREAT)
895 const_iv (O_TRUNC)
896 const_iv (O_EXCL)
897 const_iv (O_APPEND)
898
899 const_iv (O_ASYNC)
900 const_iv (O_DIRECT)
901 const_iv (O_NOATIME)
902
903 const_iv (O_CLOEXEC)
904 const_iv (O_NOCTTY)
905 const_iv (O_NOFOLLOW)
906 const_iv (O_NONBLOCK)
907 const_iv (O_EXEC)
908 const_iv (O_SEARCH)
909 const_iv (O_DIRECTORY)
910 const_iv (O_DSYNC)
911 const_iv (O_RSYNC)
912 const_iv (O_SYNC)
913 const_iv (O_TTY_INIT)
914
915 const_iv (S_IFIFO)
916 const_iv (S_IFCHR)
917 const_iv (S_IFBLK)
918 const_iv (S_IFLNK)
919 const_iv (S_IFREG)
920 const_iv (S_IFDIR)
921 const_iv (S_IFWHT)
922 const_iv (S_IFSOCK)
923 const_iv (S_IFMT)
924
925 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
926 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
927 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
928 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
929 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
930 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
931
932 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
933 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
934 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
935 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
936 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
937
938 const_iv (ST_RDONLY)
939 const_iv (ST_NOSUID)
940 const_iv (ST_NODEV)
941 const_iv (ST_NOEXEC)
942 const_iv (ST_SYNCHRONOUS)
943 const_iv (ST_MANDLOCK)
944 const_iv (ST_WRITE)
945 const_iv (ST_APPEND)
946 const_iv (ST_IMMUTABLE)
947 const_iv (ST_NOATIME)
948 const_iv (ST_NODIRATIME)
949 const_iv (ST_RELATIME)
950
951 const_iv (PROT_NONE)
952 const_iv (PROT_EXEC)
953 const_iv (PROT_READ)
954 const_iv (PROT_WRITE)
955
956 /*const_iv (MAP_FIXED)*/
957 const_iv (MAP_PRIVATE)
958 const_iv (MAP_SHARED)
959 const_iv (MAP_ANONYMOUS)
960
961 /* linuxish */
962 const_iv (MAP_HUGETLB)
963 const_iv (MAP_LOCKED)
964 const_iv (MAP_NORESERVE)
965 const_iv (MAP_POPULATE)
966 const_iv (MAP_NONBLOCK)
967
968 const_eio (MCL_FUTURE)
969 const_eio (MCL_CURRENT)
970
971 const_eio (MS_ASYNC)
972 const_eio (MS_INVALIDATE)
973 const_eio (MS_SYNC)
974
975 const_eio (MT_MODIFY)
976
977 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
978 const_eio (SYNC_FILE_RANGE_WRITE)
979 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
980
981 const_eio (FALLOC_FL_KEEP_SIZE)
982
983 const_eio (READDIR_DENTS)
984 const_eio (READDIR_DIRS_FIRST)
985 const_eio (READDIR_STAT_ORDER)
986 const_eio (READDIR_FOUND_UNKNOWN)
987
988 const_eio (DT_UNKNOWN)
989 const_eio (DT_FIFO)
990 const_eio (DT_CHR)
991 const_eio (DT_DIR)
992 const_eio (DT_BLK)
993 const_eio (DT_REG)
994 const_eio (DT_LNK)
995 const_eio (DT_SOCK)
996 const_eio (DT_WHT)
997 };
998
1426 HV *stash = gv_stashpv ("IO::AIO", 1); 999 aio_stash = gv_stashpv ("IO::AIO" , 1);
1000 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1001 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1002 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1427 1003
1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1004 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1005 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440 1006
1441 X_COND_CHECK (reqwait); 1007 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446 1008
1447 create_respipe (); 1009 reinit ();
1448
1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1450} 1010}
1451 1011
1452void 1012void
1013reinit ()
1014 PROTOTYPE:
1015
1016void
1453max_poll_reqs (int nreqs) 1017max_poll_reqs (unsigned int nreqs)
1454 PROTOTYPE: $ 1018 PROTOTYPE: $
1455 CODE: 1019 CODE:
1456 max_poll_reqs = nreqs; 1020 eio_set_max_poll_reqs (nreqs);
1457 1021
1458void 1022void
1459max_poll_time (double nseconds) 1023max_poll_time (double nseconds)
1460 PROTOTYPE: $ 1024 PROTOTYPE: $
1461 CODE: 1025 CODE:
1462 max_poll_time = nseconds * AIO_TICKS; 1026 eio_set_max_poll_time (nseconds);
1463 1027
1464void 1028void
1465min_parallel (int nthreads) 1029min_parallel (unsigned int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $ 1030 PROTOTYPE: $
1475 CODE: 1031 CODE:
1476 set_max_idle (nthreads); 1032 eio_set_min_parallel (nthreads);
1477 1033
1478int 1034void
1479max_outstanding (int maxreqs) 1035max_parallel (unsigned int nthreads)
1480 PROTOTYPE: $ 1036 PROTOTYPE: $
1481 CODE: 1037 CODE:
1482 RETVAL = max_outstanding; 1038 eio_set_max_parallel (nthreads);
1039
1040void
1041max_idle (unsigned int nthreads)
1042 PROTOTYPE: $
1043 CODE:
1044 eio_set_max_idle (nthreads);
1045
1046void
1047idle_timeout (unsigned int seconds)
1048 PROTOTYPE: $
1049 CODE:
1050 eio_set_idle_timeout (seconds);
1051
1052void
1053max_outstanding (unsigned int maxreqs)
1054 PROTOTYPE: $
1055 CODE:
1483 max_outstanding = maxreqs; 1056 max_outstanding = maxreqs;
1484 OUTPUT: 1057
1485 RETVAL 1058void
1059aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1060 PPCODE:
1061{
1062 dREQ;
1063
1064 req->type = EIO_WD_OPEN;
1065 req_set_path1 (req, pathname);
1066
1067 REQ_SEND;
1068}
1486 1069
1487void 1070void
1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1071aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $$$;$
1490 PPCODE: 1072 PPCODE:
1491{ 1073{
1492 dREQ; 1074 dREQ;
1493 1075
1494 req->type = REQ_OPEN; 1076 req->type = EIO_OPEN;
1495 req->sv1 = newSVsv (pathname); 1077 req_set_path1 (req, pathname);
1496 req->ptr1 = SvPVbyte_nolen (req->sv1);
1497 req->int1 = flags; 1078 req->int1 = flags;
1498 req->mode = mode; 1079 req->int2 = mode;
1499 1080
1500 REQ_SEND; 1081 REQ_SEND;
1501} 1082}
1502 1083
1503void 1084void
1504aio_close (SV *fh, SV *callback=&PL_sv_undef) 1085aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $;$
1506 ALIAS: 1086 ALIAS:
1507 aio_close = REQ_CLOSE
1508 aio_fsync = REQ_FSYNC 1087 aio_fsync = EIO_FSYNC
1509 aio_fdatasync = REQ_FDATASYNC 1088 aio_fdatasync = EIO_FDATASYNC
1089 aio_syncfs = EIO_SYNCFS
1510 PPCODE: 1090 PPCODE:
1511{ 1091{
1092 int fd = s_fileno_croak (fh, 0);
1512 dREQ; 1093 dREQ;
1513 1094
1514 req->type = ix; 1095 req->type = ix;
1515 req->sv1 = newSVsv (fh); 1096 req->sv1 = newSVsv (fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1097 req->int1 = fd;
1098
1099 REQ_SEND (req);
1100}
1101
1102void
1103aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1104 PPCODE:
1105{
1106 int fd = s_fileno_croak (fh, 0);
1107 dREQ;
1108
1109 req->type = EIO_SYNC_FILE_RANGE;
1110 req->sv1 = newSVsv (fh);
1111 req->int1 = fd;
1112 req->offs = offset;
1113 req->size = nbytes;
1114 req->int2 = flags;
1115
1116 REQ_SEND (req);
1117}
1118
1119void
1120aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1121 PPCODE:
1122{
1123 int fd = s_fileno_croak (fh, 0);
1124 dREQ;
1125
1126 req->type = EIO_FALLOCATE;
1127 req->sv1 = newSVsv (fh);
1128 req->int1 = fd;
1129 req->int2 = mode;
1130 req->offs = offset;
1131 req->size = len;
1132
1133 REQ_SEND (req);
1134}
1135
1136void
1137aio_close (SV *fh, SV *callback=&PL_sv_undef)
1138 PPCODE:
1139{
1140 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1141 int fd = s_fileno_croak (fh, 0);
1142 dREQ;
1143
1144 if (expect_false (close_fd < 0))
1145 {
1146 int pipefd [2];
1147
1148 if (
1149#ifdef _WIN32
1150 _pipe (pipefd, 1, _O_BINARY) < 0
1151#else
1152 pipe (pipefd) < 0
1153 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1154#endif
1155 || close (pipefd [1]) < 0
1156 )
1157 abort (); /*D*/
1158
1159 close_fd = pipefd [0];
1160 }
1161
1162 req->type = EIO_DUP2;
1163 req->int1 = close_fd;
1164 req->sv2 = newSVsv (fh);
1165 req->int2 = fd;
1517 1166
1518 REQ_SEND (req); 1167 REQ_SEND (req);
1519} 1168}
1520 1169
1521void 1170void
1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1171aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1523 ALIAS: 1172 ALIAS:
1524 aio_read = REQ_READ 1173 aio_read = EIO_READ
1525 aio_write = REQ_WRITE 1174 aio_write = EIO_WRITE
1526 PROTOTYPE: $$$$$;$
1527 PPCODE: 1175 PPCODE:
1528{ 1176{
1529 STRLEN svlen; 1177 STRLEN svlen;
1178 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1530 char *svptr = SvPVbyte (data, svlen); 1179 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length); 1180 UV len = SvUV (length);
1532 1181
1533 SvUPGRADE (data, SVt_PV);
1534 SvPOK_on (data);
1535
1536 if (dataoffset < 0) 1182 if (dataoffset < 0)
1537 dataoffset += svlen; 1183 dataoffset += svlen;
1538 1184
1539 if (dataoffset < 0 || dataoffset > svlen) 1185 if (dataoffset < 0 || dataoffset > svlen)
1540 croak ("dataoffset outside of data scalar"); 1186 croak ("dataoffset outside of data scalar");
1541 1187
1542 if (ix == REQ_WRITE) 1188 if (ix == EIO_WRITE)
1543 { 1189 {
1544 /* write: check length and adjust. */ 1190 /* write: check length and adjust. */
1545 if (!SvOK (length) || len + dataoffset > svlen) 1191 if (!SvOK (length) || len + dataoffset > svlen)
1546 len = svlen - dataoffset; 1192 len = svlen - dataoffset;
1547 } 1193 }
1548 else 1194 else
1549 { 1195 {
1550 /* read: grow scalar as necessary */ 1196 /* read: check type and grow scalar as necessary */
1197 SvUPGRADE (data, SVt_PV);
1551 svptr = SvGROW (data, len + dataoffset + 1); 1198 svptr = SvGROW (data, len + dataoffset + 1);
1552 } 1199 }
1553 1200
1554 if (len < 0)
1555 croak ("length must not be negative");
1556
1557 { 1201 {
1558 dREQ; 1202 dREQ;
1559 1203
1560 req->type = ix; 1204 req->type = ix;
1561 req->sv1 = newSVsv (fh); 1205 req->sv1 = newSVsv (fh);
1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1206 req->int1 = fd;
1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1207 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1565 req->size = len; 1208 req->size = len;
1566 req->sv2 = SvREFCNT_inc (data); 1209 req->sv2 = SvREFCNT_inc (data);
1567 req->ptr1 = (char *)svptr + dataoffset; 1210 req->ptr2 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset; 1211 req->stroffset = dataoffset;
1569 1212
1570 if (!SvREADONLY (data)) 1213 if (!SvREADONLY (data))
1571 { 1214 {
1572 SvREADONLY_on (data); 1215 SvREADONLY_on (data);
… …
1576 REQ_SEND; 1219 REQ_SEND;
1577 } 1220 }
1578} 1221}
1579 1222
1580void 1223void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1224aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1582 PROTOTYPE: $$;$ 1225 ALIAS:
1226 aio_readlink = EIO_READLINK
1227 aio_realpath = EIO_REALPATH
1583 PPCODE: 1228 PPCODE:
1584{ 1229{
1585 SV *data;
1586 dREQ; 1230 dREQ;
1587 1231
1588 data = newSV (NAME_MAX);
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK; 1232 req->type = ix;
1592 req->sv1 = newSVsv (path); 1233 req_set_path1 (req, pathname);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596 1234
1597 REQ_SEND; 1235 REQ_SEND;
1598} 1236}
1599 1237
1600void 1238void
1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1239aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1602 PROTOTYPE: $$$$;$
1603 PPCODE: 1240 PPCODE:
1604{ 1241{
1242 int ifd = s_fileno_croak (in_fh , 0);
1243 int ofd = s_fileno_croak (out_fh, 1);
1605 dREQ; 1244 dREQ;
1606 1245
1607 req->type = REQ_SENDFILE; 1246 req->type = EIO_SENDFILE;
1608 req->sv1 = newSVsv (out_fh); 1247 req->sv1 = newSVsv (out_fh);
1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1248 req->int1 = ofd;
1610 req->sv2 = newSVsv (in_fh); 1249 req->sv2 = newSVsv (in_fh);
1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1250 req->int2 = ifd;
1612 req->offs = SvVAL64 (in_offset); 1251 req->offs = in_offset;
1613 req->size = length; 1252 req->size = length;
1614 1253
1615 REQ_SEND; 1254 REQ_SEND;
1616} 1255}
1617 1256
1618void 1257void
1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1258aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1620 PROTOTYPE: $$$;$
1621 PPCODE: 1259 PPCODE:
1622{ 1260{
1261 int fd = s_fileno_croak (fh, 0);
1623 dREQ; 1262 dREQ;
1624 1263
1625 req->type = REQ_READAHEAD; 1264 req->type = EIO_READAHEAD;
1626 req->sv1 = newSVsv (fh); 1265 req->sv1 = newSVsv (fh);
1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1266 req->int1 = fd;
1628 req->offs = SvVAL64 (offset); 1267 req->offs = offset;
1629 req->size = length; 1268 req->size = length;
1630 1269
1631 REQ_SEND; 1270 REQ_SEND;
1632} 1271}
1633 1272
1634void 1273void
1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1274aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1636 ALIAS: 1275 ALIAS:
1637 aio_stat = REQ_STAT 1276 aio_stat = EIO_STAT
1638 aio_lstat = REQ_LSTAT 1277 aio_lstat = EIO_LSTAT
1278 aio_statvfs = EIO_STATVFS
1639 PPCODE: 1279 PPCODE:
1640{ 1280{
1641 dREQ; 1281 dREQ;
1642 1282
1643 req->ptr2 = malloc (sizeof (Stat_t));
1644 if (!req->ptr2)
1645 {
1646 req_destroy (req);
1647 croak ("out of memory during aio_stat statdata allocation");
1648 }
1649
1650 req->flags |= FLAG_PTR2_FREE;
1651 req->sv1 = newSVsv (fh_or_path); 1283 req->sv1 = newSVsv (fh_or_path);
1652 1284 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1653 if (SvPOK (fh_or_path))
1654 {
1655 req->type = ix;
1656 req->ptr1 = SvPVbyte_nolen (req->sv1);
1657 }
1658 else
1659 {
1660 req->type = REQ_FSTAT;
1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1662 }
1663
1664 REQ_SEND; 1285 REQ_SEND;
1665} 1286}
1287
1288UV
1289major (UV dev)
1290 ALIAS:
1291 minor = 1
1292 CODE:
1293 RETVAL = ix ? major (dev) : minor (dev);
1294 OUTPUT:
1295 RETVAL
1296
1297UV
1298makedev (UV maj, UV min)
1299 CODE:
1300 RETVAL = makedev (maj, min);
1301 OUTPUT:
1302 RETVAL
1666 1303
1667void 1304void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1305aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1669 PPCODE: 1306 PPCODE:
1670{ 1307{
1671 dREQ; 1308 dREQ;
1672 1309
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1310 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1311 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path); 1312 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1676
1677 if (SvPOK (fh_or_path))
1678 {
1679 req->type = REQ_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 }
1682 else
1683 {
1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687 1313
1688 REQ_SEND; 1314 REQ_SEND;
1689} 1315}
1690 1316
1691void 1317void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1318aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1693 PPCODE: 1319 PPCODE:
1694{ 1320{
1695 dREQ; 1321 dREQ;
1696 1322
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1323 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699 1324 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 }
1710 1325
1711 REQ_SEND; 1326 REQ_SEND;
1712} 1327}
1713 1328
1714void 1329void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1330aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1331 ALIAS:
1332 aio_chmod = EIO_CHMOD
1333 aio_mkdir = EIO_MKDIR
1716 PPCODE: 1334 PPCODE:
1717{ 1335{
1718 dREQ; 1336 dREQ;
1719 1337
1720 req->mode = mode; 1338 req->int2 = mode;
1721 req->sv1 = newSVsv (fh_or_path); 1339 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1722
1723 if (SvPOK (fh_or_path))
1724 {
1725 req->type = REQ_CHMOD;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 }
1728 else
1729 {
1730 req->type = REQ_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 }
1733 1340
1734 REQ_SEND; 1341 REQ_SEND;
1735} 1342}
1736 1343
1737void 1344void
… …
1740{ 1347{
1741 dREQ; 1348 dREQ;
1742 1349
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1350 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1351 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path); 1352 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1746
1747 if (SvPOK (fh_or_path))
1748 {
1749 req->type = REQ_CHOWN;
1750 req->ptr1 = SvPVbyte_nolen (req->sv1);
1751 }
1752 else
1753 {
1754 req->type = REQ_FCHOWN;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1756 }
1757 1353
1758 REQ_SEND; 1354 REQ_SEND;
1355}
1356
1357void
1358aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1359 PPCODE:
1360{
1361 dREQ;
1362
1363 req->type = EIO_READDIR;
1364 req->sv1 = newSVsv (pathname);
1365 req->ptr1 = SvPVbyte_nolen (req->sv1);
1366 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1367
1368 if (flags & EIO_READDIR_DENTS)
1369 req->int1 |= EIO_READDIR_CUSTOM2;
1370
1371 REQ_SEND;
1759} 1372}
1760 1373
1761void 1374void
1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1375aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1763 ALIAS: 1376 ALIAS:
1764 aio_unlink = REQ_UNLINK 1377 aio_unlink = EIO_UNLINK
1765 aio_rmdir = REQ_RMDIR 1378 aio_rmdir = EIO_RMDIR
1766 aio_readdir = REQ_READDIR 1379 aio_readdir = EIO_READDIR
1767 PPCODE: 1380 PPCODE:
1768{ 1381{
1769 dREQ; 1382 dREQ;
1770 1383
1771 req->type = ix; 1384 req->type = ix;
1772 req->sv1 = newSVsv (pathname); 1385 req_set_path1 (req, pathname);
1773 req->ptr1 = SvPVbyte_nolen (req->sv1);
1774 1386
1775 REQ_SEND; 1387 REQ_SEND;
1776} 1388}
1777 1389
1778void 1390void
1391aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1392 ALIAS:
1393 aio_link = EIO_LINK
1394 aio_symlink = EIO_SYMLINK
1395 aio_rename = EIO_RENAME
1396 PPCODE:
1397{
1398 dREQ;
1399 eio_wd wd2;
1400
1401 req->type = ix;
1402 req_set_path1 (req, oldpath);
1403 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1404 req->int3 = (long)wd2;
1405
1406 REQ_SEND;
1407}
1408
1409void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1410aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1780 PPCODE: 1411 PPCODE:
1781{ 1412{
1782 dREQ; 1413 dREQ;
1783 1414
1784 req->type = REQ_MKDIR; 1415 req->type = EIO_MKNOD;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode; 1416 req->int2 = (mode_t)mode;
1788 1417 req->offs = dev;
1789 REQ_SEND; 1418 req_set_path1 (req, pathname);
1790}
1791
1792void
1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1794 ALIAS:
1795 aio_link = REQ_LINK
1796 aio_symlink = REQ_SYMLINK
1797 aio_rename = REQ_RENAME
1798 PPCODE:
1799{
1800 dREQ;
1801
1802 req->type = ix;
1803 req->sv2 = newSVsv (oldpath);
1804 req->ptr2 = SvPVbyte_nolen (req->sv2);
1805 req->sv1 = newSVsv (newpath);
1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1807 1419
1808 REQ_SEND; 1420 REQ_SEND;
1809} 1421}
1810 1422
1811void 1423void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1424aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1813 PPCODE: 1425 ALIAS:
1426 aio_mtouch = EIO_MTOUCH
1427 aio_msync = EIO_MSYNC
1428 PPCODE:
1814{ 1429{
1815 dREQ; 1430 STRLEN svlen;
1816 1431 char *svptr = SvPVbyte (data, svlen);
1432 UV len = SvUV (length);
1433
1434 if (offset < 0)
1435 offset += svlen;
1436
1437 if (offset < 0 || offset > svlen)
1438 croak ("offset outside of scalar");
1439
1440 if (!SvOK (length) || len + offset > svlen)
1441 len = svlen - offset;
1442
1443 {
1444 dREQ;
1445
1446 req->type = ix;
1447 req->sv2 = SvREFCNT_inc (data);
1448 req->ptr2 = (char *)svptr + offset;
1449 req->size = len;
1450 req->int1 = flags;
1451
1452 REQ_SEND;
1453 }
1454}
1455
1456void
1457aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1458 PPCODE:
1459{
1460 STRLEN svlen;
1461 char *svptr = SvPVbyte (data, svlen);
1462 UV len = SvUV (length);
1463
1464 if (offset < 0)
1465 offset += svlen;
1466
1467 if (offset < 0 || offset > svlen)
1468 croak ("offset outside of scalar");
1469
1470 if (!SvOK (length) || len + offset > svlen)
1471 len = svlen - offset;
1472
1473 {
1474 dREQ;
1475
1817 req->type = REQ_MKNOD; 1476 req->type = EIO_MLOCK;
1818 req->sv1 = newSVsv (pathname); 1477 req->sv2 = SvREFCNT_inc (data);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1); 1478 req->ptr2 = (char *)svptr + offset;
1820 req->mode = (mode_t)mode;
1821 req->offs = dev; 1479 req->size = len;
1822 1480
1823 REQ_SEND; 1481 REQ_SEND;
1482 }
1483}
1484
1485void
1486aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1487 PPCODE:
1488{
1489 dREQ;
1490
1491 req->type = EIO_MLOCKALL;
1492 req->int1 = flags;
1493
1494 REQ_SEND;
1824} 1495}
1825 1496
1826void 1497void
1827aio_busy (double delay, SV *callback=&PL_sv_undef) 1498aio_busy (double delay, SV *callback=&PL_sv_undef)
1828 PPCODE: 1499 PPCODE:
1829{ 1500{
1830 dREQ; 1501 dREQ;
1831 1502
1832 req->type = REQ_BUSY; 1503 req->type = EIO_BUSY;
1833 req->nv1 = delay < 0. ? 0. : delay; 1504 req->nv1 = delay < 0. ? 0. : delay;
1834 1505
1835 REQ_SEND; 1506 REQ_SEND;
1836} 1507}
1837 1508
1838void 1509void
1839aio_group (SV *callback=&PL_sv_undef) 1510aio_group (SV *callback=&PL_sv_undef)
1840 PROTOTYPE: ;$
1841 PPCODE: 1511 PPCODE:
1842{ 1512{
1843 dREQ; 1513 dREQ;
1844 1514
1845 req->type = REQ_GROUP; 1515 req->type = EIO_GROUP;
1846 1516
1847 req_send (req); 1517 req_submit (req);
1848 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1518 XPUSHs (req_sv (req, aio_grp_stash));
1849} 1519}
1850 1520
1851void 1521void
1852aio_nop (SV *callback=&PL_sv_undef) 1522aio_nop (SV *callback=&PL_sv_undef)
1523 ALIAS:
1524 aio_nop = EIO_NOP
1525 aio_sync = EIO_SYNC
1853 PPCODE: 1526 PPCODE:
1854{ 1527{
1855 dREQ; 1528 dREQ;
1856 1529
1857 req->type = REQ_NOP; 1530 req->type = ix;
1858 1531
1859 REQ_SEND; 1532 REQ_SEND;
1860} 1533}
1861 1534
1862int 1535int
1863aioreq_pri (int pri = 0) 1536aioreq_pri (int pri = 0)
1864 PROTOTYPE: ;$
1865 CODE: 1537 CODE:
1866 RETVAL = next_pri - PRI_BIAS; 1538 RETVAL = next_pri;
1867 if (items > 0) 1539 if (items > 0)
1868 { 1540 {
1869 if (pri < PRI_MIN) pri = PRI_MIN; 1541 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1870 if (pri > PRI_MAX) pri = PRI_MAX; 1542 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1871 next_pri = pri + PRI_BIAS; 1543 next_pri = pri;
1872 } 1544 }
1873 OUTPUT: 1545 OUTPUT:
1874 RETVAL 1546 RETVAL
1875 1547
1876void 1548void
1877aioreq_nice (int nice = 0) 1549aioreq_nice (int nice = 0)
1878 CODE: 1550 CODE:
1879 nice = next_pri - nice; 1551 nice = next_pri - nice;
1880 if (nice < PRI_MIN) nice = PRI_MIN; 1552 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1881 if (nice > PRI_MAX) nice = PRI_MAX; 1553 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1882 next_pri = nice + PRI_BIAS; 1554 next_pri = nice;
1883 1555
1884void 1556void
1885flush () 1557flush ()
1886 PROTOTYPE:
1887 CODE: 1558 CODE:
1888 while (nreqs) 1559 while (eio_nreqs ())
1889 { 1560 {
1890 poll_wait (); 1561 poll_wait ();
1891 poll_cb (); 1562 poll_cb ();
1892 } 1563 }
1893 1564
1894int 1565int
1895poll() 1566poll ()
1896 PROTOTYPE:
1897 CODE: 1567 CODE:
1898 poll_wait (); 1568 poll_wait ();
1899 RETVAL = poll_cb (); 1569 RETVAL = poll_cb ();
1900 OUTPUT: 1570 OUTPUT:
1901 RETVAL 1571 RETVAL
1902 1572
1903int 1573int
1904poll_fileno() 1574poll_fileno ()
1905 PROTOTYPE:
1906 CODE: 1575 CODE:
1907 RETVAL = respipe [0]; 1576 RETVAL = s_epipe_fd (&respipe);
1908 OUTPUT: 1577 OUTPUT:
1909 RETVAL 1578 RETVAL
1910 1579
1911int 1580int
1912poll_cb(...) 1581poll_cb (...)
1913 PROTOTYPE: 1582 PROTOTYPE:
1914 CODE: 1583 CODE:
1915 RETVAL = poll_cb (); 1584 RETVAL = poll_cb ();
1916 OUTPUT: 1585 OUTPUT:
1917 RETVAL 1586 RETVAL
1918 1587
1919void 1588void
1920poll_wait() 1589poll_wait ()
1921 PROTOTYPE:
1922 CODE: 1590 CODE:
1923 poll_wait (); 1591 poll_wait ();
1924 1592
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1961
1962int 1593int
1963nreqs() 1594nreqs ()
1964 PROTOTYPE:
1965 CODE: 1595 CODE:
1966 RETVAL = nreqs; 1596 RETVAL = eio_nreqs ();
1967 OUTPUT: 1597 OUTPUT:
1968 RETVAL 1598 RETVAL
1969 1599
1970int 1600int
1971nready() 1601nready ()
1972 PROTOTYPE:
1973 CODE: 1602 CODE:
1974 RETVAL = get_nready (); 1603 RETVAL = eio_nready ();
1975 OUTPUT: 1604 OUTPUT:
1976 RETVAL 1605 RETVAL
1977 1606
1978int 1607int
1979npending() 1608npending ()
1980 PROTOTYPE:
1981 CODE: 1609 CODE:
1982 RETVAL = get_npending (); 1610 RETVAL = eio_npending ();
1983 OUTPUT: 1611 OUTPUT:
1984 RETVAL 1612 RETVAL
1985 1613
1986int 1614int
1987nthreads() 1615nthreads ()
1988 PROTOTYPE:
1989 CODE: 1616 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1617 RETVAL = eio_nthreads ();
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT: 1618 OUTPUT:
1994 RETVAL 1619 RETVAL
1995 1620
1621int
1622fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1623 CODE:
1624 RETVAL = posix_fadvise (fh, offset, length, advice);
1625 OUTPUT:
1626 RETVAL
1627
1628IV
1629sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1630 CODE:
1631 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1632 OUTPUT:
1633 RETVAL
1634
1635void
1636mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1637 PPCODE:
1638 sv_unmagic (scalar, MMAP_MAGIC);
1639{
1640 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1641 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1642 if (addr == (void *)-1)
1643 XSRETURN_NO;
1644
1645 sv_force_normal (scalar);
1646
1647 /* we store the length in mg_obj, as namlen is I32 :/ */
1648 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1649 ->mg_obj = (SV *)length;
1650
1651 SvUPGRADE (scalar, SVt_PV); /* nop... */
1652
1653 if (!(prot & PROT_WRITE))
1654 SvREADONLY_on (scalar);
1655
1656 if (SvLEN (scalar))
1657 Safefree (SvPVX (scalar));
1658
1659 SvPVX (scalar) = (char *)addr;
1660 SvCUR_set (scalar, length);
1661 SvLEN_set (scalar, 0);
1662 SvPOK_only (scalar);
1663
1664 XSRETURN_YES;
1665}
1666
1667void
1668munmap (SV *scalar)
1669 CODE:
1670 sv_unmagic (scalar, MMAP_MAGIC);
1671
1672int
1673madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1674 ALIAS:
1675 mprotect = 1
1676 CODE:
1677{
1678 STRLEN svlen;
1679 void *addr = SvPVbyte (scalar, svlen);
1680 size_t len = SvUV (length);
1681
1682 if (offset < 0)
1683 offset += svlen;
1684
1685 if (offset < 0 || offset > svlen)
1686 croak ("offset outside of scalar");
1687
1688 if (!SvOK (length) || len + offset > svlen)
1689 len = svlen - offset;
1690
1691 addr = (void *)(((intptr_t)addr) + offset);
1692 eio_page_align (&addr, &len);
1693
1694 switch (ix)
1695 {
1696 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1697 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1698 }
1699}
1700 OUTPUT:
1701 RETVAL
1702
1703int
1704munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1705 CODE:
1706{
1707 STRLEN svlen;
1708 void *addr = SvPVbyte (scalar, svlen);
1709 size_t len = SvUV (length);
1710
1711 if (offset < 0)
1712 offset += svlen;
1713
1714 if (offset < 0 || offset > svlen)
1715 croak ("offset outside of scalar");
1716
1717 if (!SvOK (length) || len + offset > svlen)
1718 len = svlen - offset;
1719
1720 addr = (void *)(((intptr_t)addr) + offset);
1721 eio_page_align (&addr, &len);
1722#if _POSIX_MEMLOCK_RANGE
1723 RETVAL = munlock (addr, len);
1724#else
1725 RETVAL = ((errno = ENOSYS), -1);
1726#endif
1727}
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732munlockall ()
1733 CODE:
1734#if _POSIX_MEMLOCK
1735 munlockall ();
1736#else
1737 RETVAL = -1;
1738 errno = ENOSYS;
1739#endif
1740 OUTPUT:
1741 RETVAL
1742
1743void _on_next_submit (SV *cb)
1744 CODE:
1745 SvREFCNT_dec (on_next_submit);
1746 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1747
1996PROTOTYPES: DISABLE 1748PROTOTYPES: DISABLE
1997 1749
1750MODULE = IO::AIO PACKAGE = IO::AIO::WD
1751
1752BOOT:
1753{
1754 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1755 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1756}
1757
1758void
1759DESTROY (SV *self)
1760 CODE:
1761{
1762 aio_wd wd = SvAIO_WD (self);
1763#if HAVE_AT
1764 SV *callback = &PL_sv_undef;
1765 dREQ; /* clobbers next_pri :/ */
1766 req->type = EIO_WD_CLOSE;
1767 req->wd = wd;
1768 REQ_SEND;
1769#else
1770 eio_wd_close_sync (wd);
1771#endif
1772}
1773
1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1774MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1999 1775
2000void 1776void
2001cancel (aio_req_ornot req) 1777cancel (aio_req_ornot req)
2002 CODE: 1778 CODE:
2003 req_cancel (req); 1779 eio_cancel (req);
2004 1780
2005void 1781void
2006cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1782cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2007 CODE: 1783 PPCODE:
1784{
1785 if (GIMME_V != G_VOID)
1786 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1787
1788 if (items > 1)
1789 {
1790 SV *cb_cv =get_cb (callback);
1791
2008 SvREFCNT_dec (req->callback); 1792 SvREFCNT_dec (req->callback);
2009 req->callback = newSVsv (callback); 1793 req->callback = SvREFCNT_inc (cb_cv);
1794 }
1795}
2010 1796
2011MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1797MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2012 1798
2013void 1799void
2014add (aio_req grp, ...) 1800add (aio_req grp, ...)
2015 PPCODE: 1801 PPCODE:
2016{ 1802{
2017 int i; 1803 int i;
2018 aio_req req;
2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022 1804
2023 if (grp->int1 == 2) 1805 if (grp->int1 == 2)
2024 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1806 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2025 1807
2026 for (i = 1; i < items; ++i ) 1808 for (i = 1; i < items; ++i )
2027 { 1809 {
1810 aio_req req;
1811
2028 if (GIMME_V != G_VOID) 1812 if (GIMME_V != G_VOID)
2029 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1813 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2030 1814
2031 req = SvAIO_REQ (ST (i)); 1815 req = SvAIO_REQ (ST (i));
2032 1816
2033 if (req) 1817 if (req)
2034 { 1818 eio_grp_add (grp, req);
2035 ++grp->size;
2036 req->grp = grp;
2037
2038 req->grp_prev = 0;
2039 req->grp_next = grp->grp_first;
2040
2041 if (grp->grp_first)
2042 grp->grp_first->grp_prev = req;
2043
2044 grp->grp_first = req;
2045 }
2046 } 1819 }
2047} 1820}
2048 1821
2049void 1822void
2050cancel_subs (aio_req_ornot req) 1823cancel_subs (aio_req_ornot req)
… …
2059 AV *av; 1832 AV *av;
2060 1833
2061 grp->errorno = errno; 1834 grp->errorno = errno;
2062 1835
2063 av = newAV (); 1836 av = newAV ();
1837 av_extend (av, items - 1);
2064 1838
2065 for (i = 1; i < items; ++i ) 1839 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i))); 1840 av_push (av, newSVsv (ST (i)));
2067 1841
2068 SvREFCNT_dec (grp->sv1); 1842 SvREFCNT_dec (grp->sv1);
… …
2075 grp->errorno = errorno; 1849 grp->errorno = errorno;
2076 1850
2077void 1851void
2078limit (aio_req grp, int limit) 1852limit (aio_req grp, int limit)
2079 CODE: 1853 CODE:
2080 grp->int2 = limit; 1854 eio_grp_limit (grp, limit);
2081 aio_grp_feed (grp);
2082 1855
2083void 1856void
2084feed (aio_req grp, SV *callback=&PL_sv_undef) 1857feed (aio_req grp, SV *callback=&PL_sv_undef)
2085 CODE: 1858 CODE:
2086{ 1859{
2087 SvREFCNT_dec (grp->sv2); 1860 SvREFCNT_dec (grp->sv2);
2088 grp->sv2 = newSVsv (callback); 1861 grp->sv2 = newSVsv (callback);
1862 grp->feed = aio_grp_feed;
2089 1863
2090 if (grp->int2 <= 0) 1864 if (grp->int2 <= 0)
2091 grp->int2 = 2; 1865 grp->int2 = 2;
2092 1866
2093 aio_grp_feed (grp); 1867 eio_grp_limit (grp, grp->int2);
2094} 1868}
2095 1869

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