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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.114 by root, Sat Apr 26 12:00:23 2008 UTC vs.
Revision 1.199 by root, Thu Sep 29 09:47:13 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
102static HV *stash; 90/*****************************************************************************/
103 91
104#define dBUF \ 92#if __GNUC__ >= 3
105 char *aio_buf; \ 93# define expect(expr,value) __builtin_expect ((expr),(value))
106 X_LOCK (wrklock); \ 94#else
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 95# define expect(expr,value) (expr)
108 X_UNLOCK (wrklock); \ 96#endif
109 if (!aio_buf) \ 97
110 return -1; 98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
111 102
112typedef 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
113 328
114enum { 329enum {
115 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 331};
131 332
132#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134
135typedef struct aio_cb
136{
137 struct aio_cb *volatile next;
138
139 SV *callback;
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146
147 STRLEN stroffset;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152
153 unsigned char flags;
154 unsigned char pri;
155
156 SV *self; /* the perl counterpart of this request, if any */
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
158} aio_cb;
159
160enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164};
165
166typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
168 336
169enum { 337static SV *on_next_submit;
170 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 339static int max_outstanding;
172 340
173 DEFAULT_PRI = 0, 341static s_epipe respipe;
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177 342
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig (void)
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return;
200
201 if (!main_sig)
202 return;
203
204 sigemptyset (&ss);
205 sigaddset (&ss, main_sig);
206 pthread_sigmask (SIG_BLOCK, &ss, 0);
207}
208
209void unblock_sig (void)
210{
211 sigset_t ss;
212
213 if (--block_sig_level)
214 return;
215
216 if (!main_sig)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 {
249 closedir (wrk->dirp);
250 wrk->dirp = 0;
251 }
252
253 if (wrk->dbuf)
254 {
255 free (wrk->dbuf);
256 wrk->dbuf = 0;
257 }
258}
259
260static void worker_free (worker *wrk)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready (void)
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending (void)
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads (void)
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0;
355
356 --q->size;
357
358 for (pri = NUM_PRI; pri--; )
359 {
360 aio_req req = q->qs[pri];
361
362 if (req)
363 {
364 if (!(q->qs[pri] = req->next))
365 q->qe[pri] = 0;
366
367 return req;
368 }
369 }
370
371 abort ();
372}
373
374static int poll_cb (void);
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 343static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
378 345
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
379/* must be called at most once */ 358/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 359static SV *req_sv (aio_req req, HV *stash)
381{ 360{
382 if (!req->self) 361 if (!req->self)
383 { 362 {
384 req->self = (SV *)newHV (); 363 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 365 }
387 366
388 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);
389} 374}
390 375
391static aio_req SvAIO_REQ (SV *sv) 376static aio_req SvAIO_REQ (SV *sv)
392{ 377{
393 MAGIC *mg; 378 MAGIC *mg;
394 379
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 384 croak ("object of class IO::AIO::REQ expected");
397 385
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 386 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 387
400 return mg ? (aio_req)mg->mg_ptr : 0; 388 return mg ? (aio_req)mg->mg_ptr : 0;
401} 389}
402 390
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
403static void aio_grp_feed (aio_req grp) 401static void aio_grp_feed (aio_req grp)
404{ 402{
405 block_sig (); 403 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 404 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 405 dSP;
414 406
415 ENTER; 407 ENTER;
416 SAVETMPS; 408 SAVETMPS;
417 PUSHMARK (SP); 409 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 410 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 411 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 412 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 413 SPAGAIN;
422 FREETMPS; 414 FREETMPS;
423 LEAVE; 415 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 416 }
434
435 unblock_sig ();
436} 417}
437 418
438static void aio_grp_dec (aio_req grp) 419static void req_submit (eio_req *req)
439{ 420{
440 --grp->size; 421 eio_submit (req);
441 422
442 /* call feeder, if applicable */ 423 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 424 {
448 block_sig (); 425 dSP;
426 SV *cb = sv_2mortal (on_next_submit);
449 427
450 if (!req_invoke (grp)) 428 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 429
457 req_destroy (grp); 430 PUSHMARK (SP);
458 unblock_sig (); 431 PUTBACK;
432 call_sv (cb, G_DISCARD | G_EVAL);
459 } 433 }
460} 434}
461 435
462static int req_invoke (aio_req req) 436static int req_invoke (eio_req *req)
463{ 437{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 438 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 439 SvREADONLY_off (req->sv2);
468 440
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 441 if (!EIO_CANCELLED (req) && req->callback)
470 { 442 {
443 dSP;
444 static SV *sv_result_cache; /* caches the result integer SV */
445 SV *sv_result;
446
471 ENTER; 447 ENTER;
472 SAVETMPS; 448 SAVETMPS;
473 PUSHMARK (SP); 449 PUSHMARK (SP);
474 EXTEND (SP, 1); 450 EXTEND (SP, 1);
475 451
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
476 switch (req->type) 465 switch (req->type)
477 { 466 {
467 case EIO_WD_OPEN:
468 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
469 break;
470
478 case REQ_READDIR: 471 case EIO_READDIR:
479 { 472 {
480 SV *rv = &PL_sv_undef; 473 SV *rv = &PL_sv_undef;
481 474
482 if (req->result >= 0) 475 if (req->result >= 0)
483 { 476 {
484 int i; 477 int i;
485 char *buf = req->ptr2; 478 char *names = (char *)req->ptr2;
479 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 480 AV *av = newAV ();
487 481
488 av_extend (av, req->result - 1); 482 av_extend (av, req->result - 1);
489 483
490 for (i = 0; i < req->result; ++i) 484 for (i = 0; i < req->result; ++i)
491 { 485 {
492 SV *sv = newSVpv (buf, 0); 486 if (req->int1 & EIO_READDIR_DENTS)
487 {
488 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 489
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
494 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);
495 buf += SvCUR (sv) + 1; 518 names += SvCUR (name) + 1;
519 }
496 } 520 }
497 521
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 522 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 523 }
500 524
501 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))));
502 } 529 }
503 break; 530 break;
504 531
505 case REQ_OPEN: 532 case EIO_OPEN:
506 { 533 {
507 /* convert fd to fh */ 534 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 535 SV *fh = &PL_sv_undef;
509 536
510 if (req->result >= 0) 537 if (req->result >= 0)
… …
512 GV *gv = (GV *)sv_newmortal (); 539 GV *gv = (GV *)sv_newmortal ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 540 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514 char sym [64]; 541 char sym [64];
515 int symlen; 542 int symlen;
516 543
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 544 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518 gv_init (gv, stash, sym, symlen, 0); 545 gv_init (gv, aio_stash, sym, symlen, 0);
519 546
520 symlen = snprintf ( 547 symlen = snprintf (
521 sym, 548 sym,
522 sizeof (sym), 549 sizeof (sym),
523 "%s&=%d", 550 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 551 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result 552 (int)req->result
526 ); 553 );
527 554
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 555 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529 fh = (SV *)gv; 556 fh = (SV *)gv;
530 } 557 }
531 558
532 PUSHs (fh); 559 PUSHs (fh);
533 } 560 }
534 break; 561 break;
535 562
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
536 case REQ_GROUP: 595 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 596 req->int1 = 2; /* mark group as finished */
538 597
539 if (req->sv1) 598 if (req->sv1)
540 { 599 {
541 int i; 600 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 604 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 605 PUSHs (*av_fetch (av, i, 0));
547 } 606 }
548 break; 607 break;
549 608
550 case REQ_NOP: 609 case EIO_NOP:
551 case REQ_BUSY: 610 case EIO_BUSY:
552 break; 611 break;
553 612
554 case REQ_READLINK: 613 case EIO_READLINK:
614 case EIO_REALPATH:
555 if (req->result > 0) 615 if (req->result > 0)
556 { 616 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
557 SvCUR_set (req->sv2, req->result);
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2);
560 }
561 break; 617 break;
562 618
563 case REQ_STAT: 619 case EIO_STAT:
564 case REQ_LSTAT: 620 case EIO_LSTAT:
565 case REQ_FSTAT: 621 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 622 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
623
567 PL_laststatval = req->result; 624 if (!(PL_laststatval = req->result))
625 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
568 PL_statcache = *(Stat_t *)(req->ptr2); 626 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 627
628 PUSHs (sv_result);
570 break; 629 break;
571 630
572 case REQ_READ: 631 case EIO_READ:
632 {
573 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));
574 *SvEND (req->sv2) = 0; 634 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 635 SvPOK_only (req->sv2);
636 SvSETMAGIC (req->sv2);
637 PUSHs (sv_result);
638 }
576 break; 639 break;
577 640
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
578 default: 646 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 647 PUSHs (sv_result);
580 break; 648 break;
581 } 649 }
582 650
583 errno = req->errorno; 651 errno = req->errorno;
584 652
585 PUTBACK; 653 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 654 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 655 SPAGAIN;
588 656
657 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
658 SvREFCNT_dec (sv_result);
659 else
660 sv_result_cache = sv_result;
661
589 FREETMPS; 662 FREETMPS;
590 LEAVE; 663 LEAVE;
591 664
592 PUTBACK; 665 PUTBACK;
593 } 666 }
594 667
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 668 return !!SvTRUE (ERRSV);
610} 669}
611 670
612static void req_destroy (aio_req req) 671static void req_destroy (aio_req req)
613{ 672{
614 if (req->self) 673 if (req->self)
… …
617 SvREFCNT_dec (req->self); 676 SvREFCNT_dec (req->self);
618 } 677 }
619 678
620 SvREFCNT_dec (req->sv1); 679 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 680 SvREFCNT_dec (req->sv2);
681 SvREFCNT_dec (req->sv3);
682 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 683 SvREFCNT_dec (req->callback);
623 684
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 685 Safefree (req);
628} 686}
629 687
630static void req_cancel_subs (aio_req grp) 688static void req_cancel_subs (aio_req grp)
631{ 689{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 690 if (grp->type != EIO_GROUP)
635 return; 691 return;
636 692
637 SvREFCNT_dec (grp->sv2); 693 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 694 grp->sv2 = 0;
639 695
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 696 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 697}
643 698
644static void req_cancel (aio_req req)
645{
646 req->flags |= FLAG_CANCELLED;
647
648 req_cancel_subs (req);
649}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656
657static void
658create_respipe (void) 699static void create_respipe (void)
659{ 700{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe)) 701 if (s_epipe_renew (&respipe))
669#endif
670 croak ("unable to initialize result pipe"); 702 croak ("IO::AIO: unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788} 703}
789 704
790static void poll_wait (void) 705static void poll_wait (void)
791{ 706{
792 fd_set rfd;
793
794 while (nreqs) 707 while (eio_nreqs ())
795 { 708 {
796 int size; 709 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 710
711 X_LOCK (reslock);
798 size = res_queue.size; 712 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 713 X_UNLOCK (reslock);
800 714
801 if (size) 715 if (size)
802 return; 716 return;
803 717
804 maybe_start_thread (); 718 etp_maybe_start_thread ();
805 719
806 FD_ZERO (&rfd); 720 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 721 }
811} 722}
812 723
813static int poll_cb (void) 724static int poll_cb (void)
814{ 725{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 726 for (;;)
828 { 727 {
829 for (;;) 728 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 729
833 X_LOCK (reslock); 730 if (res > 0)
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 {
838 --npending;
839
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 }
861 else
862 {
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0); 731 croak (0);
868 }
869 732
870 count++; 733 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 734 return res;
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 }
886
887 if (nreqs <= max_outstanding)
888 break;
889 735
890 poll_wait (); 736 poll_wait ();
891
892 ++maxreqs;
893 } 737 }
738}
894 739
895 unblock_sig (); 740static void ecb_cold
896 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");
897} 747}
898 748
899/*****************************************************************************/ 749/*****************************************************************************/
900/* work around various missing functions */
901 750
902#if !HAVE_PREADWRITE 751#if !_POSIX_MAPPED_FILES
903# define pread aio_pread 752# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
904# define pwrite aio_pwrite 753# define munmap(addr,length) (errno = ENOSYS, -1)
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{
915 ssize_t res;
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926}
927
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
929{
930 ssize_t res;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif 754#endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079 755
1080 if (res < 0 756#if !_POSIX_MEMORY_PROTECTION
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 757# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1082#if __solaris 758# define PROT_NONE 0
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
1084#endif 763#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090 764
1091 res = 0; 765#define MMAP_MAGIC PERL_MAGIC_ext
1092 766
1093 while (count) 767static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1094 { 768{
1095 ssize_t cnt; 769 int old_errno = errno;
1096 770 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 771 errno = old_errno;
1098 772
1099 if (cnt <= 0) 773 mg->mg_obj = 0; /* just in case */
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104 774
1105 cnt = write (ofd, aio_buf, cnt); 775 SvREADONLY_off (sv);
1106 776
1107 if (cnt <= 0) 777 if (SvPVX (sv) != mg->mg_ptr)
1108 { 778 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112 779
1113 offset += cnt; 780 SvCUR_set (sv, 0);
1114 res += cnt; 781 SvPVX (sv) = 0;
1115 count -= cnt; 782 SvOK_off (sv);
1116 }
1117 }
1118 783
1119 return res; 784 return 0;
1120} 785}
1121 786
1122/* read a full directory */ 787static MGVTBL mmap_vtbl = {
1123static void scandir_ (aio_req req, worker *self) 788 0, 0, 0, 0, mmap_free
1124{ 789};
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183static int
1184aio_close (int fd)
1185{
1186 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1187
1188 X_LOCK (wrklock);
1189
1190 if (close_pipe < 0)
1191 {
1192 int pipefd [2];
1193
1194 if (pipe (pipefd) < 0
1195 || close (pipefd [1]) < 0
1196 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1197 {
1198 X_UNLOCK (wrklock);
1199 return -1;
1200 }
1201
1202 close_pipe = pipefd [0];
1203 }
1204
1205 X_UNLOCK (wrklock);
1206
1207 return dup2 (close_pipe, fd) < 0 ? -1 : 0;
1208}
1209 790
1210/*****************************************************************************/ 791/*****************************************************************************/
1211 792
1212X_THREAD_PROC (aio_proc) 793static SV * get_cb (SV *cb_sv)
1213{ 794{
1214 aio_req req; 795 SvGETMAGIC (cb_sv);
1215 struct timespec ts; 796 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1216 worker *self = (worker *)thr_arg;
1217
1218 /* try to distribute timeouts somewhat randomly */
1219 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1220
1221 for (;;)
1222 {
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224
1225 X_LOCK (reqlock);
1226
1227 for (;;)
1228 {
1229 self->req = req = reqq_shift (&req_queue);
1230
1231 if (req)
1232 break;
1233
1234 ++idle;
1235
1236 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1237 == ETIMEDOUT)
1238 {
1239 if (idle > max_idle)
1240 {
1241 --idle;
1242 X_UNLOCK (reqlock);
1243 X_LOCK (wrklock);
1244 --started;
1245 X_UNLOCK (wrklock);
1246 goto quit;
1247 }
1248
1249 /* we are allowed to idle, so do so without any timeout */
1250 X_COND_WAIT (reqwait, reqlock);
1251 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1252 }
1253
1254 --idle;
1255 }
1256
1257 --nready;
1258
1259 X_UNLOCK (reqlock);
1260
1261 errno = 0; /* strictly unnecessary */
1262
1263 if (!(req->flags & FLAG_CANCELLED))
1264 switch (req->type)
1265 {
1266 case REQ_READ: req->result = req->offs >= 0
1267 ? pread (req->int1, req->ptr1, req->size, req->offs)
1268 : read (req->int1, req->ptr1, req->size); break;
1269 case REQ_WRITE: req->result = req->offs >= 0
1270 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1271 : write (req->int1, req->ptr1, req->size); break;
1272
1273 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1274 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1275
1276 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1277 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1278 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1279
1280 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1281 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1282 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1283 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1284 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1285 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1286
1287 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1288 case REQ_CLOSE: req->result = aio_close (req->int1); break;
1289 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1290 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1291 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1292 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1293 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1294 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1295 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1296 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1297
1298 case REQ_SYNC: req->result = 0; sync (); break;
1299 case REQ_FSYNC: req->result = fsync (req->int1); break;
1300 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1301
1302 case REQ_READDIR: scandir_ (req, self); break;
1303
1304 case REQ_BUSY:
1305#ifdef _WIN32
1306 Sleep (req->nv1 * 1000.);
1307#else
1308 {
1309 struct timeval tv;
1310
1311 tv.tv_sec = req->nv1;
1312 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1313
1314 req->result = select (0, 0, 0, 0, &tv);
1315 }
1316#endif
1317 break;
1318
1319 case REQ_UTIME:
1320 case REQ_FUTIME:
1321 {
1322 struct timeval tv[2];
1323 struct timeval *times;
1324
1325 if (req->nv1 != -1. || req->nv2 != -1.)
1326 {
1327 tv[0].tv_sec = req->nv1;
1328 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1329 tv[1].tv_sec = req->nv2;
1330 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1331
1332 times = tv;
1333 }
1334 else
1335 times = 0;
1336
1337
1338 req->result = req->type == REQ_FUTIME
1339 ? futimes (req->int1, times)
1340 : utimes (req->ptr1, times);
1341 }
1342
1343 case REQ_GROUP:
1344 case REQ_NOP:
1345 break;
1346
1347 case REQ_QUIT:
1348 goto quit;
1349
1350 default:
1351 req->result = -1;
1352 break;
1353 }
1354
1355 req->errorno = errno;
1356
1357 X_LOCK (reslock);
1358
1359 ++npending;
1360
1361 if (!reqq_push (&res_queue, req))
1362 {
1363 /* write a dummy byte to the pipe so fh becomes ready */
1364 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1365
1366 /* optionally signal the main thread asynchronously */
1367 if (main_sig)
1368 pthread_kill (main_tid, main_sig);
1369 }
1370
1371 self->req = 0;
1372 worker_clear (self);
1373
1374 X_UNLOCK (reslock);
1375 }
1376
1377quit:
1378 X_LOCK (wrklock);
1379 worker_free (self);
1380 X_UNLOCK (wrklock);
1381
1382 return 0;
1383}
1384
1385/*****************************************************************************/
1386
1387static void atfork_prepare (void)
1388{
1389 X_LOCK (wrklock);
1390 X_LOCK (reqlock);
1391 X_LOCK (reslock);
1392#if !HAVE_PREADWRITE
1393 X_LOCK (preadwritelock);
1394#endif
1395#if !HAVE_READDIR_R
1396 X_LOCK (readdirlock);
1397#endif
1398}
1399
1400static void atfork_parent (void)
1401{
1402#if !HAVE_READDIR_R
1403 X_UNLOCK (readdirlock);
1404#endif
1405#if !HAVE_PREADWRITE
1406 X_UNLOCK (preadwritelock);
1407#endif
1408 X_UNLOCK (reslock);
1409 X_UNLOCK (reqlock);
1410 X_UNLOCK (wrklock);
1411}
1412
1413static void atfork_child (void)
1414{
1415 aio_req prv;
1416
1417 while (prv = reqq_shift (&req_queue))
1418 req_destroy (prv);
1419
1420 while (prv = reqq_shift (&res_queue))
1421 req_destroy (prv);
1422
1423 while (wrk_first.next != &wrk_first)
1424 {
1425 worker *wrk = wrk_first.next;
1426
1427 if (wrk->req)
1428 req_destroy (wrk->req);
1429
1430 worker_clear (wrk);
1431 worker_free (wrk);
1432 }
1433
1434 started = 0;
1435 idle = 0;
1436 nreqs = 0;
1437 nready = 0;
1438 npending = 0;
1439
1440 create_respipe ();
1441
1442 atfork_parent ();
1443} 797}
1444 798
1445#define dREQ \ 799#define dREQ \
800 SV *cb_cv; \
1446 aio_req req; \ 801 aio_req req; \
1447 int req_pri = next_pri; \ 802 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \ 803 next_pri = EIO_PRI_DEFAULT; \
1449 \ 804 \
1450 if (SvOK (callback) && !SvROK (callback)) \ 805 cb_cv = get_cb (callback); \
1451 croak ("callback must be undef or of reference type"); \
1452 \ 806 \
1453 Newz (0, req, 1, aio_cb); \ 807 Newz (0, req, 1, eio_req); \
1454 if (!req) \ 808 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \ 809 croak ("out of memory during eio_req allocation"); \
1456 \ 810 \
1457 req->callback = newSVsv (callback); \ 811 req->callback = SvREFCNT_inc (cb_cv); \
1458 req->pri = req_pri 812 req->pri = req_pri
1459 813
1460#define REQ_SEND \ 814#define REQ_SEND \
815 PUTBACK; \
1461 req_send (req); \ 816 req_submit (req); \
817 SPAGAIN; \
1462 \ 818 \
1463 if (GIMME_V != G_VOID) \ 819 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 820 XPUSHs (req_sv (req, aio_req_stash));
1465 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
1466MODULE = IO::AIO PACKAGE = IO::AIO 878MODULE = IO::AIO PACKAGE = IO::AIO
1467 879
1468PROTOTYPES: ENABLE 880PROTOTYPES: ENABLE
1469 881
1470BOOT: 882BOOT:
1471{ 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
1472 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);
1473 1005
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1006 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1007 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1478 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1479#ifdef _WIN32
1480 X_MUTEX_CHECK (wrklock);
1481 X_MUTEX_CHECK (reslock);
1482 X_MUTEX_CHECK (reqlock);
1483 X_MUTEX_CHECK (reqwait);
1484 X_MUTEX_CHECK (preadwritelock);
1485 X_MUTEX_CHECK (readdirlock);
1486 1008
1487 X_COND_CHECK (reqwait); 1009 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1488#else
1489 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1490 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1491#endif
1492 1010
1493 create_respipe (); 1011 reinit ();
1494
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1496} 1012}
1497 1013
1498void 1014void
1015reinit ()
1016 PROTOTYPE:
1017
1018void
1499max_poll_reqs (int nreqs) 1019max_poll_reqs (unsigned int nreqs)
1500 PROTOTYPE: $ 1020 PROTOTYPE: $
1501 CODE: 1021 CODE:
1502 max_poll_reqs = nreqs; 1022 eio_set_max_poll_reqs (nreqs);
1503 1023
1504void 1024void
1505max_poll_time (double nseconds) 1025max_poll_time (double nseconds)
1506 PROTOTYPE: $ 1026 PROTOTYPE: $
1507 CODE: 1027 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 1028 eio_set_max_poll_time (nseconds);
1509 1029
1510void 1030void
1511min_parallel (int nthreads) 1031min_parallel (unsigned int nthreads)
1512 PROTOTYPE: $
1513
1514void
1515max_parallel (int nthreads)
1516 PROTOTYPE: $
1517
1518void
1519max_idle (int nthreads)
1520 PROTOTYPE: $ 1032 PROTOTYPE: $
1521 CODE: 1033 CODE:
1522 set_max_idle (nthreads); 1034 eio_set_min_parallel (nthreads);
1523 1035
1524int 1036void
1525max_outstanding (int maxreqs) 1037max_parallel (unsigned int nthreads)
1526 PROTOTYPE: $ 1038 PROTOTYPE: $
1527 CODE: 1039 CODE:
1528 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:
1529 max_outstanding = maxreqs; 1058 max_outstanding = maxreqs;
1530 OUTPUT: 1059
1531 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}
1532 1071
1533void 1072void
1534aio_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)
1535 PROTOTYPE: $$$;$
1536 PPCODE: 1074 PPCODE:
1537{ 1075{
1538 dREQ; 1076 dREQ;
1539 1077
1540 req->type = REQ_OPEN; 1078 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 1079 req_set_path1 (req, pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 1080 req->int1 = flags;
1544 req->mode = mode; 1081 req->int2 = mode;
1545 1082
1546 REQ_SEND; 1083 REQ_SEND;
1547} 1084}
1548 1085
1549void 1086void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1087aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 ALIAS: 1088 ALIAS:
1553 aio_fsync = REQ_FSYNC 1089 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 1090 aio_fdatasync = EIO_FDATASYNC
1091 aio_syncfs = EIO_SYNCFS
1555 PPCODE: 1092 PPCODE:
1556{ 1093{
1094 int fd = s_fileno_croak (fh, 0);
1557 dREQ; 1095 dREQ;
1558 1096
1559 req->type = ix; 1097 req->type = ix;
1560 req->sv1 = newSVsv (fh); 1098 req->sv1 = newSVsv (fh);
1561 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1099 req->int1 = fd;
1562 1100
1563 REQ_SEND (req); 1101 REQ_SEND (req);
1564} 1102}
1565 1103
1566void 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
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 1139aio_close (SV *fh, SV *callback=&PL_sv_undef)
1568 PROTOTYPE: $;$
1569 PPCODE: 1140 PPCODE:
1570{ 1141{
1142 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1143 int fd = s_fileno_croak (fh, 0);
1571 dREQ; 1144 dREQ;
1572 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
1573 req->type = REQ_CLOSE; 1164 req->type = EIO_DUP2;
1165 req->int1 = close_fd;
1574 req->sv1 = newSVsv (fh); 1166 req->sv2 = newSVsv (fh);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1167 req->int2 = fd;
1576 1168
1577 REQ_SEND (req); 1169 REQ_SEND (req);
1578} 1170}
1579 1171
1580void 1172void
1581aio_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)
1582 ALIAS: 1174 ALIAS:
1583 aio_read = REQ_READ 1175 aio_read = EIO_READ
1584 aio_write = REQ_WRITE 1176 aio_write = EIO_WRITE
1585 PROTOTYPE: $$$$$;$
1586 PPCODE: 1177 PPCODE:
1587{ 1178{
1588 STRLEN svlen; 1179 STRLEN svlen;
1180 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1589 char *svptr = SvPVbyte (data, svlen); 1181 char *svptr = SvPVbyte (data, svlen);
1590 UV len = SvUV (length); 1182 UV len = SvUV (length);
1591 1183
1592 SvUPGRADE (data, SVt_PV);
1593 SvPOK_on (data);
1594
1595 if (dataoffset < 0) 1184 if (dataoffset < 0)
1596 dataoffset += svlen; 1185 dataoffset += svlen;
1597 1186
1598 if (dataoffset < 0 || dataoffset > svlen) 1187 if (dataoffset < 0 || dataoffset > svlen)
1599 croak ("dataoffset outside of data scalar"); 1188 croak ("dataoffset outside of data scalar");
1600 1189
1601 if (ix == REQ_WRITE) 1190 if (ix == EIO_WRITE)
1602 { 1191 {
1603 /* write: check length and adjust. */ 1192 /* write: check length and adjust. */
1604 if (!SvOK (length) || len + dataoffset > svlen) 1193 if (!SvOK (length) || len + dataoffset > svlen)
1605 len = svlen - dataoffset; 1194 len = svlen - dataoffset;
1606 } 1195 }
1607 else 1196 else
1608 { 1197 {
1609 /* read: grow scalar as necessary */ 1198 /* read: check type and grow scalar as necessary */
1199 SvUPGRADE (data, SVt_PV);
1610 svptr = SvGROW (data, len + dataoffset + 1); 1200 svptr = SvGROW (data, len + dataoffset + 1);
1611 } 1201 }
1612 1202
1613 if (len < 0)
1614 croak ("length must not be negative");
1615
1616 { 1203 {
1617 dREQ; 1204 dREQ;
1618 1205
1619 req->type = ix; 1206 req->type = ix;
1620 req->sv1 = newSVsv (fh); 1207 req->sv1 = newSVsv (fh);
1621 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1208 req->int1 = fd;
1622 : IoOFP (sv_2io (fh)));
1623 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1209 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1624 req->size = len; 1210 req->size = len;
1625 req->sv2 = SvREFCNT_inc (data); 1211 req->sv2 = SvREFCNT_inc (data);
1626 req->ptr1 = (char *)svptr + dataoffset; 1212 req->ptr2 = (char *)svptr + dataoffset;
1627 req->stroffset = dataoffset; 1213 req->stroffset = dataoffset;
1628 1214
1629 if (!SvREADONLY (data)) 1215 if (!SvREADONLY (data))
1630 { 1216 {
1631 SvREADONLY_on (data); 1217 SvREADONLY_on (data);
… …
1635 REQ_SEND; 1221 REQ_SEND;
1636 } 1222 }
1637} 1223}
1638 1224
1639void 1225void
1640aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1226aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1641 PROTOTYPE: $$;$ 1227 ALIAS:
1228 aio_readlink = EIO_READLINK
1229 aio_realpath = EIO_REALPATH
1642 PPCODE: 1230 PPCODE:
1643{ 1231{
1644 SV *data;
1645 dREQ; 1232 dREQ;
1646 1233
1647 data = newSV (NAME_MAX);
1648 SvPOK_on (data);
1649
1650 req->type = REQ_READLINK; 1234 req->type = ix;
1651 req->sv1 = newSVsv (path); 1235 req_set_path1 (req, pathname);
1652 req->ptr2 = SvPVbyte_nolen (req->sv1);
1653 req->sv2 = data;
1654 req->ptr1 = SvPVbyte_nolen (data);
1655 1236
1656 REQ_SEND; 1237 REQ_SEND;
1657} 1238}
1658 1239
1659void 1240void
1660aio_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)
1661 PROTOTYPE: $$$$;$
1662 PPCODE: 1242 PPCODE:
1663{ 1243{
1244 int ifd = s_fileno_croak (in_fh , 0);
1245 int ofd = s_fileno_croak (out_fh, 1);
1664 dREQ; 1246 dREQ;
1665 1247
1666 req->type = REQ_SENDFILE; 1248 req->type = EIO_SENDFILE;
1667 req->sv1 = newSVsv (out_fh); 1249 req->sv1 = newSVsv (out_fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1250 req->int1 = ofd;
1669 req->sv2 = newSVsv (in_fh); 1251 req->sv2 = newSVsv (in_fh);
1670 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1252 req->int2 = ifd;
1671 req->offs = SvVAL64 (in_offset); 1253 req->offs = in_offset;
1672 req->size = length; 1254 req->size = length;
1673 1255
1674 REQ_SEND; 1256 REQ_SEND;
1675} 1257}
1676 1258
1677void 1259void
1678aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1260aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1679 PROTOTYPE: $$$;$
1680 PPCODE: 1261 PPCODE:
1681{ 1262{
1263 int fd = s_fileno_croak (fh, 0);
1682 dREQ; 1264 dREQ;
1683 1265
1684 req->type = REQ_READAHEAD; 1266 req->type = EIO_READAHEAD;
1685 req->sv1 = newSVsv (fh); 1267 req->sv1 = newSVsv (fh);
1686 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1268 req->int1 = fd;
1687 req->offs = SvVAL64 (offset); 1269 req->offs = offset;
1688 req->size = length; 1270 req->size = length;
1689 1271
1690 REQ_SEND; 1272 REQ_SEND;
1691} 1273}
1692 1274
1693void 1275void
1694aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1276aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1695 ALIAS: 1277 ALIAS:
1696 aio_stat = REQ_STAT 1278 aio_stat = EIO_STAT
1697 aio_lstat = REQ_LSTAT 1279 aio_lstat = EIO_LSTAT
1280 aio_statvfs = EIO_STATVFS
1698 PPCODE: 1281 PPCODE:
1699{ 1282{
1700 dREQ; 1283 dREQ;
1701 1284
1702 req->ptr2 = malloc (sizeof (Stat_t));
1703 if (!req->ptr2)
1704 {
1705 req_destroy (req);
1706 croak ("out of memory during aio_stat statdata allocation");
1707 }
1708
1709 req->flags |= FLAG_PTR2_FREE;
1710 req->sv1 = newSVsv (fh_or_path); 1285 req->sv1 = newSVsv (fh_or_path);
1711 1286 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1712 if (SvPOK (fh_or_path))
1713 {
1714 req->type = ix;
1715 req->ptr1 = SvPVbyte_nolen (req->sv1);
1716 }
1717 else
1718 {
1719 req->type = REQ_FSTAT;
1720 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1721 }
1722
1723 REQ_SEND; 1287 REQ_SEND;
1724} 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
1725 1305
1726void 1306void
1727aio_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)
1728 PPCODE: 1308 PPCODE:
1729{ 1309{
1730 dREQ; 1310 dREQ;
1731 1311
1732 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1312 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1733 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1313 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1734 req->sv1 = newSVsv (fh_or_path); 1314 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1735
1736 if (SvPOK (fh_or_path))
1737 {
1738 req->type = REQ_UTIME;
1739 req->ptr1 = SvPVbyte_nolen (req->sv1);
1740 }
1741 else
1742 {
1743 req->type = REQ_FUTIME;
1744 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1745 }
1746 1315
1747 REQ_SEND; 1316 REQ_SEND;
1748} 1317}
1749 1318
1750void 1319void
1751aio_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)
1752 PPCODE: 1321 PPCODE:
1753{ 1322{
1754 dREQ; 1323 dREQ;
1755 1324
1756 req->sv1 = newSVsv (fh_or_path);
1757 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1325 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1758 1326 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1759 if (SvPOK (fh_or_path))
1760 {
1761 req->type = REQ_TRUNCATE;
1762 req->ptr1 = SvPVbyte_nolen (req->sv1);
1763 }
1764 else
1765 {
1766 req->type = REQ_FTRUNCATE;
1767 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1768 }
1769 1327
1770 REQ_SEND; 1328 REQ_SEND;
1771} 1329}
1772 1330
1773void 1331void
1774aio_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)
1333 ALIAS:
1334 aio_chmod = EIO_CHMOD
1335 aio_mkdir = EIO_MKDIR
1775 PPCODE: 1336 PPCODE:
1776{ 1337{
1777 dREQ; 1338 dREQ;
1778 1339
1779 req->mode = mode; 1340 req->int2 = mode;
1780 req->sv1 = newSVsv (fh_or_path); 1341 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1781
1782 if (SvPOK (fh_or_path))
1783 {
1784 req->type = REQ_CHMOD;
1785 req->ptr1 = SvPVbyte_nolen (req->sv1);
1786 }
1787 else
1788 {
1789 req->type = REQ_FCHMOD;
1790 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1791 }
1792 1342
1793 REQ_SEND; 1343 REQ_SEND;
1794} 1344}
1795 1345
1796void 1346void
… …
1799{ 1349{
1800 dREQ; 1350 dREQ;
1801 1351
1802 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1352 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1803 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1353 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1804 req->sv1 = newSVsv (fh_or_path); 1354 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1805
1806 if (SvPOK (fh_or_path))
1807 {
1808 req->type = REQ_CHOWN;
1809 req->ptr1 = SvPVbyte_nolen (req->sv1);
1810 }
1811 else
1812 {
1813 req->type = REQ_FCHOWN;
1814 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1815 }
1816 1355
1817 REQ_SEND; 1356 REQ_SEND;
1357}
1358
1359void
1360aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1361 PPCODE:
1362{
1363 dREQ;
1364
1365 req->type = EIO_READDIR;
1366 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1367
1368 if (flags & EIO_READDIR_DENTS)
1369 req->int1 |= EIO_READDIR_CUSTOM2;
1370
1371 req_set_path1 (req, pathname);
1372
1373 REQ_SEND;
1818} 1374}
1819 1375
1820void 1376void
1821aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1377aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1822 ALIAS: 1378 ALIAS:
1823 aio_unlink = REQ_UNLINK 1379 aio_unlink = EIO_UNLINK
1824 aio_rmdir = REQ_RMDIR 1380 aio_rmdir = EIO_RMDIR
1825 aio_readdir = REQ_READDIR 1381 aio_readdir = EIO_READDIR
1826 PPCODE: 1382 PPCODE:
1827{ 1383{
1828 dREQ; 1384 dREQ;
1829 1385
1830 req->type = ix; 1386 req->type = ix;
1831 req->sv1 = newSVsv (pathname); 1387 req_set_path1 (req, pathname);
1832 req->ptr1 = SvPVbyte_nolen (req->sv1);
1833 1388
1834 REQ_SEND; 1389 REQ_SEND;
1835} 1390}
1836 1391
1837void 1392void
1393aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1394 ALIAS:
1395 aio_link = EIO_LINK
1396 aio_symlink = EIO_SYMLINK
1397 aio_rename = EIO_RENAME
1398 PPCODE:
1399{
1400 dREQ;
1401 eio_wd wd2 = 0;
1402
1403 req->type = ix;
1404 req_set_path1 (req, oldpath);
1405 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1406 req->int3 = (long)wd2;
1407
1408 REQ_SEND;
1409}
1410
1411void
1838aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1412aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1839 PPCODE: 1413 PPCODE:
1840{ 1414{
1841 dREQ; 1415 dREQ;
1842 1416
1843 req->type = REQ_MKDIR; 1417 req->type = EIO_MKNOD;
1844 req->sv1 = newSVsv (pathname);
1845 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 req->mode = mode; 1418 req->int2 = (mode_t)mode;
1847 1419 req->offs = dev;
1848 REQ_SEND; 1420 req_set_path1 (req, pathname);
1849}
1850
1851void
1852aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1853 ALIAS:
1854 aio_link = REQ_LINK
1855 aio_symlink = REQ_SYMLINK
1856 aio_rename = REQ_RENAME
1857 PPCODE:
1858{
1859 dREQ;
1860
1861 req->type = ix;
1862 req->sv2 = newSVsv (oldpath);
1863 req->ptr2 = SvPVbyte_nolen (req->sv2);
1864 req->sv1 = newSVsv (newpath);
1865 req->ptr1 = SvPVbyte_nolen (req->sv1);
1866 1421
1867 REQ_SEND; 1422 REQ_SEND;
1868} 1423}
1869 1424
1870void 1425void
1871aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1426aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1872 PPCODE: 1427 ALIAS:
1428 aio_mtouch = EIO_MTOUCH
1429 aio_msync = EIO_MSYNC
1430 PPCODE:
1873{ 1431{
1874 dREQ; 1432 STRLEN svlen;
1875 1433 char *svptr = SvPVbyte (data, svlen);
1434 UV len = SvUV (length);
1435
1436 if (offset < 0)
1437 offset += svlen;
1438
1439 if (offset < 0 || offset > svlen)
1440 croak ("offset outside of scalar");
1441
1442 if (!SvOK (length) || len + offset > svlen)
1443 len = svlen - offset;
1444
1445 {
1446 dREQ;
1447
1448 req->type = ix;
1449 req->sv2 = SvREFCNT_inc (data);
1450 req->ptr2 = (char *)svptr + offset;
1451 req->size = len;
1452 req->int1 = flags;
1453
1454 REQ_SEND;
1455 }
1456}
1457
1458void
1459aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1460 PPCODE:
1461{
1462 STRLEN svlen;
1463 char *svptr = SvPVbyte (data, svlen);
1464 UV len = SvUV (length);
1465
1466 if (offset < 0)
1467 offset += svlen;
1468
1469 if (offset < 0 || offset > svlen)
1470 croak ("offset outside of scalar");
1471
1472 if (!SvOK (length) || len + offset > svlen)
1473 len = svlen - offset;
1474
1475 {
1476 dREQ;
1477
1876 req->type = REQ_MKNOD; 1478 req->type = EIO_MLOCK;
1877 req->sv1 = newSVsv (pathname); 1479 req->sv2 = SvREFCNT_inc (data);
1878 req->ptr1 = SvPVbyte_nolen (req->sv1); 1480 req->ptr2 = (char *)svptr + offset;
1879 req->mode = (mode_t)mode;
1880 req->offs = dev; 1481 req->size = len;
1881 1482
1882 REQ_SEND; 1483 REQ_SEND;
1484 }
1485}
1486
1487void
1488aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1489 PPCODE:
1490{
1491 dREQ;
1492
1493 req->type = EIO_MLOCKALL;
1494 req->int1 = flags;
1495
1496 REQ_SEND;
1883} 1497}
1884 1498
1885void 1499void
1886aio_busy (double delay, SV *callback=&PL_sv_undef) 1500aio_busy (double delay, SV *callback=&PL_sv_undef)
1887 PPCODE: 1501 PPCODE:
1888{ 1502{
1889 dREQ; 1503 dREQ;
1890 1504
1891 req->type = REQ_BUSY; 1505 req->type = EIO_BUSY;
1892 req->nv1 = delay < 0. ? 0. : delay; 1506 req->nv1 = delay < 0. ? 0. : delay;
1893 1507
1894 REQ_SEND; 1508 REQ_SEND;
1895} 1509}
1896 1510
1897void 1511void
1898aio_group (SV *callback=&PL_sv_undef) 1512aio_group (SV *callback=&PL_sv_undef)
1899 PROTOTYPE: ;$
1900 PPCODE: 1513 PPCODE:
1901{ 1514{
1902 dREQ; 1515 dREQ;
1903 1516
1904 req->type = REQ_GROUP; 1517 req->type = EIO_GROUP;
1905 1518
1906 req_send (req); 1519 req_submit (req);
1907 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1520 XPUSHs (req_sv (req, aio_grp_stash));
1908} 1521}
1909 1522
1910void 1523void
1911aio_nop (SV *callback=&PL_sv_undef) 1524aio_nop (SV *callback=&PL_sv_undef)
1912 ALIAS: 1525 ALIAS:
1913 aio_nop = REQ_NOP 1526 aio_nop = EIO_NOP
1914 aio_sync = REQ_SYNC 1527 aio_sync = EIO_SYNC
1915 PPCODE: 1528 PPCODE:
1916{ 1529{
1917 dREQ; 1530 dREQ;
1918 1531
1919 req->type = ix; 1532 req->type = ix;
… …
1921 REQ_SEND; 1534 REQ_SEND;
1922} 1535}
1923 1536
1924int 1537int
1925aioreq_pri (int pri = 0) 1538aioreq_pri (int pri = 0)
1926 PROTOTYPE: ;$
1927 CODE: 1539 CODE:
1928 RETVAL = next_pri - PRI_BIAS; 1540 RETVAL = next_pri;
1929 if (items > 0) 1541 if (items > 0)
1930 { 1542 {
1931 if (pri < PRI_MIN) pri = PRI_MIN; 1543 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1932 if (pri > PRI_MAX) pri = PRI_MAX; 1544 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1933 next_pri = pri + PRI_BIAS; 1545 next_pri = pri;
1934 } 1546 }
1935 OUTPUT: 1547 OUTPUT:
1936 RETVAL 1548 RETVAL
1937 1549
1938void 1550void
1939aioreq_nice (int nice = 0) 1551aioreq_nice (int nice = 0)
1940 CODE: 1552 CODE:
1941 nice = next_pri - nice; 1553 nice = next_pri - nice;
1942 if (nice < PRI_MIN) nice = PRI_MIN; 1554 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1943 if (nice > PRI_MAX) nice = PRI_MAX; 1555 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1944 next_pri = nice + PRI_BIAS; 1556 next_pri = nice;
1945 1557
1946void 1558void
1947flush () 1559flush ()
1948 PROTOTYPE:
1949 CODE: 1560 CODE:
1950 while (nreqs) 1561 while (eio_nreqs ())
1951 { 1562 {
1952 poll_wait (); 1563 poll_wait ();
1953 poll_cb (); 1564 poll_cb ();
1954 } 1565 }
1955 1566
1956int 1567int
1957poll() 1568poll ()
1958 PROTOTYPE:
1959 CODE: 1569 CODE:
1960 poll_wait (); 1570 poll_wait ();
1961 RETVAL = poll_cb (); 1571 RETVAL = poll_cb ();
1962 OUTPUT: 1572 OUTPUT:
1963 RETVAL 1573 RETVAL
1964 1574
1965int 1575int
1966poll_fileno() 1576poll_fileno ()
1967 PROTOTYPE:
1968 CODE: 1577 CODE:
1969 RETVAL = respipe [0]; 1578 RETVAL = s_epipe_fd (&respipe);
1970 OUTPUT: 1579 OUTPUT:
1971 RETVAL 1580 RETVAL
1972 1581
1973int 1582int
1974poll_cb(...) 1583poll_cb (...)
1975 PROTOTYPE: 1584 PROTOTYPE:
1976 CODE: 1585 CODE:
1977 RETVAL = poll_cb (); 1586 RETVAL = poll_cb ();
1978 OUTPUT: 1587 OUTPUT:
1979 RETVAL 1588 RETVAL
1980 1589
1981void 1590void
1982poll_wait() 1591poll_wait ()
1983 PROTOTYPE:
1984 CODE: 1592 CODE:
1985 poll_wait (); 1593 poll_wait ();
1986 1594
1987void
1988setsig (int signum = SIGIO)
1989 PROTOTYPE: ;$
1990 CODE:
1991{
1992 if (block_sig_level)
1993 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1994
1995 X_LOCK (reslock);
1996 main_tid = pthread_self ();
1997 main_sig = signum;
1998 X_UNLOCK (reslock);
1999
2000 if (main_sig && npending)
2001 pthread_kill (main_tid, main_sig);
2002}
2003
2004void
2005aio_block (SV *cb)
2006 PROTOTYPE: &
2007 PPCODE:
2008{
2009 int count;
2010
2011 block_sig ();
2012 PUSHMARK (SP);
2013 PUTBACK;
2014 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
2015 unblock_sig ();
2016
2017 if (SvTRUE (ERRSV))
2018 croak (0);
2019
2020 XSRETURN (count);
2021}
2022
2023int 1595int
2024nreqs() 1596nreqs ()
2025 PROTOTYPE:
2026 CODE: 1597 CODE:
2027 RETVAL = nreqs; 1598 RETVAL = eio_nreqs ();
2028 OUTPUT: 1599 OUTPUT:
2029 RETVAL 1600 RETVAL
2030 1601
2031int 1602int
2032nready() 1603nready ()
2033 PROTOTYPE:
2034 CODE: 1604 CODE:
2035 RETVAL = get_nready (); 1605 RETVAL = eio_nready ();
2036 OUTPUT: 1606 OUTPUT:
2037 RETVAL 1607 RETVAL
2038 1608
2039int 1609int
2040npending() 1610npending ()
2041 PROTOTYPE:
2042 CODE: 1611 CODE:
2043 RETVAL = get_npending (); 1612 RETVAL = eio_npending ();
2044 OUTPUT: 1613 OUTPUT:
2045 RETVAL 1614 RETVAL
2046 1615
2047int 1616int
2048nthreads() 1617nthreads ()
2049 PROTOTYPE:
2050 CODE: 1618 CODE:
2051 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1619 RETVAL = eio_nthreads ();
2052 RETVAL = started;
2053 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2054 OUTPUT: 1620 OUTPUT:
2055 RETVAL 1621 RETVAL
2056 1622
1623int
1624fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1625 CODE:
1626 RETVAL = posix_fadvise (fh, offset, length, advice);
1627 OUTPUT:
1628 RETVAL
1629
1630IV
1631sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1632 CODE:
1633 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1634 OUTPUT:
1635 RETVAL
1636
1637void
1638mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1639 PPCODE:
1640 sv_unmagic (scalar, MMAP_MAGIC);
1641{
1642 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1643 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1644 if (addr == (void *)-1)
1645 XSRETURN_NO;
1646
1647 sv_force_normal (scalar);
1648
1649 /* we store the length in mg_obj, as namlen is I32 :/ */
1650 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1651 ->mg_obj = (SV *)length;
1652
1653 SvUPGRADE (scalar, SVt_PV); /* nop... */
1654
1655 if (!(prot & PROT_WRITE))
1656 SvREADONLY_on (scalar);
1657
1658 if (SvLEN (scalar))
1659 Safefree (SvPVX (scalar));
1660
1661 SvPVX (scalar) = (char *)addr;
1662 SvCUR_set (scalar, length);
1663 SvLEN_set (scalar, 0);
1664 SvPOK_only (scalar);
1665
1666 XSRETURN_YES;
1667}
1668
1669void
1670munmap (SV *scalar)
1671 CODE:
1672 sv_unmagic (scalar, MMAP_MAGIC);
1673
1674int
1675madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1676 ALIAS:
1677 mprotect = 1
1678 CODE:
1679{
1680 STRLEN svlen;
1681 void *addr = SvPVbyte (scalar, svlen);
1682 size_t len = SvUV (length);
1683
1684 if (offset < 0)
1685 offset += svlen;
1686
1687 if (offset < 0 || offset > svlen)
1688 croak ("offset outside of scalar");
1689
1690 if (!SvOK (length) || len + offset > svlen)
1691 len = svlen - offset;
1692
1693 addr = (void *)(((intptr_t)addr) + offset);
1694 eio_page_align (&addr, &len);
1695
1696 switch (ix)
1697 {
1698 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1699 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1700 }
1701}
1702 OUTPUT:
1703 RETVAL
1704
1705int
1706munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1707 CODE:
1708{
1709 STRLEN svlen;
1710 void *addr = SvPVbyte (scalar, svlen);
1711 size_t len = SvUV (length);
1712
1713 if (offset < 0)
1714 offset += svlen;
1715
1716 if (offset < 0 || offset > svlen)
1717 croak ("offset outside of scalar");
1718
1719 if (!SvOK (length) || len + offset > svlen)
1720 len = svlen - offset;
1721
1722 addr = (void *)(((intptr_t)addr) + offset);
1723 eio_page_align (&addr, &len);
1724#if _POSIX_MEMLOCK_RANGE
1725 RETVAL = munlock (addr, len);
1726#else
1727 RETVAL = ((errno = ENOSYS), -1);
1728#endif
1729}
1730 OUTPUT:
1731 RETVAL
1732
1733int
1734munlockall ()
1735 CODE:
1736#if _POSIX_MEMLOCK
1737 munlockall ();
1738#else
1739 RETVAL = -1;
1740 errno = ENOSYS;
1741#endif
1742 OUTPUT:
1743 RETVAL
1744
1745void _on_next_submit (SV *cb)
1746 CODE:
1747 SvREFCNT_dec (on_next_submit);
1748 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1749
2057PROTOTYPES: DISABLE 1750PROTOTYPES: DISABLE
2058 1751
1752MODULE = IO::AIO PACKAGE = IO::AIO::WD
1753
1754BOOT:
1755{
1756 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1757 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1758}
1759
1760void
1761DESTROY (SV *self)
1762 CODE:
1763{
1764 aio_wd wd = SvAIO_WD (self);
1765#if HAVE_AT
1766 SV *callback = &PL_sv_undef;
1767 dREQ; /* clobbers next_pri :/ */
1768 req->type = EIO_WD_CLOSE;
1769 req->wd = wd;
1770 REQ_SEND;
1771#else
1772 eio_wd_close_sync (wd);
1773#endif
1774}
1775
2059MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1776MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2060 1777
2061void 1778void
2062cancel (aio_req_ornot req) 1779cancel (aio_req_ornot req)
2063 CODE: 1780 CODE:
2064 req_cancel (req); 1781 eio_cancel (req);
2065 1782
2066void 1783void
2067cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1784cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2068 CODE: 1785 PPCODE:
1786{
1787 if (GIMME_V != G_VOID)
1788 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1789
1790 if (items > 1)
1791 {
1792 SV *cb_cv =get_cb (callback);
1793
2069 SvREFCNT_dec (req->callback); 1794 SvREFCNT_dec (req->callback);
2070 req->callback = newSVsv (callback); 1795 req->callback = SvREFCNT_inc (cb_cv);
1796 }
1797}
2071 1798
2072MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1799MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2073 1800
2074void 1801void
2075add (aio_req grp, ...) 1802add (aio_req grp, ...)
2076 PPCODE: 1803 PPCODE:
2077{ 1804{
2078 int i; 1805 int i;
2079 aio_req req;
2080
2081 if (main_sig && !block_sig_level)
2082 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2083 1806
2084 if (grp->int1 == 2) 1807 if (grp->int1 == 2)
2085 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1808 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2086 1809
2087 for (i = 1; i < items; ++i ) 1810 for (i = 1; i < items; ++i )
2088 { 1811 {
1812 aio_req req;
1813
2089 if (GIMME_V != G_VOID) 1814 if (GIMME_V != G_VOID)
2090 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1815 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2091 1816
2092 req = SvAIO_REQ (ST (i)); 1817 req = SvAIO_REQ (ST (i));
2093 1818
2094 if (req) 1819 if (req)
2095 { 1820 eio_grp_add (grp, req);
2096 ++grp->size;
2097 req->grp = grp;
2098
2099 req->grp_prev = 0;
2100 req->grp_next = grp->grp_first;
2101
2102 if (grp->grp_first)
2103 grp->grp_first->grp_prev = req;
2104
2105 grp->grp_first = req;
2106 }
2107 } 1821 }
2108} 1822}
2109 1823
2110void 1824void
2111cancel_subs (aio_req_ornot req) 1825cancel_subs (aio_req_ornot req)
… …
2120 AV *av; 1834 AV *av;
2121 1835
2122 grp->errorno = errno; 1836 grp->errorno = errno;
2123 1837
2124 av = newAV (); 1838 av = newAV ();
1839 av_extend (av, items - 1);
2125 1840
2126 for (i = 1; i < items; ++i ) 1841 for (i = 1; i < items; ++i )
2127 av_push (av, newSVsv (ST (i))); 1842 av_push (av, newSVsv (ST (i)));
2128 1843
2129 SvREFCNT_dec (grp->sv1); 1844 SvREFCNT_dec (grp->sv1);
… …
2136 grp->errorno = errorno; 1851 grp->errorno = errorno;
2137 1852
2138void 1853void
2139limit (aio_req grp, int limit) 1854limit (aio_req grp, int limit)
2140 CODE: 1855 CODE:
2141 grp->int2 = limit; 1856 eio_grp_limit (grp, limit);
2142 aio_grp_feed (grp);
2143 1857
2144void 1858void
2145feed (aio_req grp, SV *callback=&PL_sv_undef) 1859feed (aio_req grp, SV *callback=&PL_sv_undef)
2146 CODE: 1860 CODE:
2147{ 1861{
2148 SvREFCNT_dec (grp->sv2); 1862 SvREFCNT_dec (grp->sv2);
2149 grp->sv2 = newSVsv (callback); 1863 grp->sv2 = newSVsv (callback);
1864 grp->feed = aio_grp_feed;
2150 1865
2151 if (grp->int2 <= 0) 1866 if (grp->int2 <= 0)
2152 grp->int2 = 2; 1867 grp->int2 = 2;
2153 1868
2154 aio_grp_feed (grp); 1869 eio_grp_limit (grp, grp->int2);
2155} 1870}
2156 1871

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