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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.111 by root, Sun Mar 30 06:31:49 2008 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
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;
567 PL_laststatval = req->result; 623 PL_laststatval = req->result;
624 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
568 PL_statcache = *(Stat_t *)(req->ptr2); 625 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 626 PUSHs (sv_result);
570 break; 627 break;
571 628
572 case REQ_READ: 629 case EIO_READ:
630 {
573 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));
574 *SvEND (req->sv2) = 0; 632 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 633 SvPOK_only (req->sv2);
634 SvSETMAGIC (req->sv2);
635 PUSHs (sv_result);
636 }
576 break; 637 break;
577 638
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
578 default: 644 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 645 PUSHs (sv_result);
580 break; 646 break;
581 } 647 }
582 648
583 errno = req->errorno; 649 errno = req->errorno;
584 650
585 PUTBACK; 651 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 652 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 653 SPAGAIN;
588 654
655 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
656 SvREFCNT_dec (sv_result);
657 else
658 sv_result_cache = sv_result;
659
589 FREETMPS; 660 FREETMPS;
590 LEAVE; 661 LEAVE;
591 662
592 PUTBACK; 663 PUTBACK;
593 } 664 }
594 665
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); 666 return !!SvTRUE (ERRSV);
610} 667}
611 668
612static void req_destroy (aio_req req) 669static void req_destroy (aio_req req)
613{ 670{
614 if (req->self) 671 if (req->self)
… …
617 SvREFCNT_dec (req->self); 674 SvREFCNT_dec (req->self);
618 } 675 }
619 676
620 SvREFCNT_dec (req->sv1); 677 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 678 SvREFCNT_dec (req->sv2);
679 SvREFCNT_dec (req->sv3);
680 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 681 SvREFCNT_dec (req->callback);
623 682
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 683 Safefree (req);
628} 684}
629 685
630static void req_cancel_subs (aio_req grp) 686static void req_cancel_subs (aio_req grp)
631{ 687{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 688 if (grp->type != EIO_GROUP)
635 return; 689 return;
636 690
637 SvREFCNT_dec (grp->sv2); 691 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 692 grp->sv2 = 0;
639 693
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 694 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 695}
643 696
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) 697static void create_respipe (void)
659{ 698{
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)) 699 if (s_epipe_renew (&respipe))
669#endif
670 croak ("unable to initialize result pipe"); 700 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} 701}
789 702
790static void poll_wait (void) 703static void poll_wait (void)
791{ 704{
792 fd_set rfd;
793
794 while (nreqs) 705 while (eio_nreqs ())
795 { 706 {
796 int size; 707 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 708
709 X_LOCK (reslock);
798 size = res_queue.size; 710 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 711 X_UNLOCK (reslock);
800 712
801 if (size) 713 if (size)
802 return; 714 return;
803 715
804 maybe_start_thread (); 716 etp_maybe_start_thread ();
805 717
806 FD_ZERO (&rfd); 718 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 719 }
811} 720}
812 721
813static int poll_cb (void) 722static int poll_cb (void)
814{ 723{
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 (;;) 724 for (;;)
828 { 725 {
829 for (;;) 726 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 727
833 X_LOCK (reslock); 728 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); 729 croak (0);
868 }
869 730
870 count++; 731 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 732 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;
889 733
890 poll_wait (); 734 poll_wait ();
891
892 ++maxreqs;
893 } 735 }
736}
894 737
895 unblock_sig (); 738static void ecb_cold
896 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");
897} 745}
898 746
899/*****************************************************************************/ 747/*****************************************************************************/
900/* work around various missing functions */
901 748
902#if !HAVE_PREADWRITE 749#if !_POSIX_MAPPED_FILES
903# define pread aio_pread 750# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
904# define pwrite aio_pwrite 751# 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 752#endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079 753
1080 if (res < 0 754#if !_POSIX_MEMORY_PROTECTION
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 755# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
1082#if __solaris 756# define PROT_NONE 0
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 757# define PROT_WRITE 0
758# define MAP_PRIVATE 0
759# define MAP_SHARED 0
760# define MAP_FIXED 0
1084#endif 761#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090 762
1091 res = 0; 763#define MMAP_MAGIC PERL_MAGIC_ext
1092 764
1093 while (count) 765static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
1094 { 766{
1095 ssize_t cnt; 767 int old_errno = errno;
1096 768 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 769 errno = old_errno;
1098 770
1099 if (cnt <= 0) 771 mg->mg_obj = 0; /* just in case */
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104 772
1105 cnt = write (ofd, aio_buf, cnt); 773 SvREADONLY_off (sv);
1106 774
1107 if (cnt <= 0) 775 if (SvPVX (sv) != mg->mg_ptr)
1108 { 776 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112 777
1113 offset += cnt; 778 SvCUR_set (sv, 0);
1114 res += cnt; 779 SvPVX (sv) = 0;
1115 count -= cnt; 780 SvOK_off (sv);
1116 }
1117 }
1118 781
1119 return res; 782 return 0;
1120} 783}
1121 784
1122/* read a full directory */ 785static MGVTBL mmap_vtbl = {
1123static void scandir_ (aio_req req, worker *self) 786 0, 0, 0, 0, mmap_free
1124{ 787};
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 788
1183/*****************************************************************************/ 789/*****************************************************************************/
1184 790
1185X_THREAD_PROC (aio_proc) 791static SV * get_cb (SV *cb_sv)
1186{ 792{
1187 {//D 793 SvGETMAGIC (cb_sv);
1188 aio_req req; 794 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1189 struct timespec ts;
1190 worker *self = (worker *)thr_arg;
1191
1192 /* try to distribute timeouts somewhat randomly */
1193 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1194
1195 for (;;)
1196 {
1197 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1198
1199 X_LOCK (reqlock);
1200
1201 for (;;)
1202 {
1203 self->req = req = reqq_shift (&req_queue);
1204
1205 if (req)
1206 break;
1207
1208 ++idle;
1209
1210 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1211 == ETIMEDOUT)
1212 {
1213 if (idle > max_idle)
1214 {
1215 --idle;
1216 X_UNLOCK (reqlock);
1217 X_LOCK (wrklock);
1218 --started;
1219 X_UNLOCK (wrklock);
1220 goto quit;
1221 }
1222
1223 /* we are allowed to idle, so do so without any timeout */
1224 X_COND_WAIT (reqwait, reqlock);
1225 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1226 }
1227
1228 --idle;
1229 }
1230
1231 --nready;
1232
1233 X_UNLOCK (reqlock);
1234
1235 errno = 0; /* strictly unnecessary */
1236
1237 if (!(req->flags & FLAG_CANCELLED))
1238 switch (req->type)
1239 {
1240 case REQ_READ: req->result = req->offs >= 0
1241 ? pread (req->int1, req->ptr1, req->size, req->offs)
1242 : read (req->int1, req->ptr1, req->size); break;
1243 case REQ_WRITE: req->result = req->offs >= 0
1244 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1245 : write (req->int1, req->ptr1, req->size); break;
1246
1247 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1248 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1249
1250 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1252 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1253
1254 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1255 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1256 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1257 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1258 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1259 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1260
1261 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1262 case REQ_CLOSE: req->result = close (req->int1); break;
1263 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1264 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1265 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1266 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1267 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1268 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1269 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1270 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1271
1272 case REQ_SYNC: req->result = 0; sync (); break;
1273 case REQ_FSYNC: req->result = fsync (req->int1); break;
1274 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1275
1276 case REQ_READDIR: scandir_ (req, self); break;
1277
1278 case REQ_BUSY:
1279#ifdef _WIN32
1280 Sleep (req->nv1 * 1000.);
1281#else
1282 {
1283 struct timeval tv;
1284
1285 tv.tv_sec = req->nv1;
1286 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1287
1288 req->result = select (0, 0, 0, 0, &tv);
1289 }
1290#endif
1291 break;
1292
1293 case REQ_UTIME:
1294 case REQ_FUTIME:
1295 {
1296 struct timeval tv[2];
1297 struct timeval *times;
1298
1299 if (req->nv1 != -1. || req->nv2 != -1.)
1300 {
1301 tv[0].tv_sec = req->nv1;
1302 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1303 tv[1].tv_sec = req->nv2;
1304 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1305
1306 times = tv;
1307 }
1308 else
1309 times = 0;
1310
1311
1312 req->result = req->type == REQ_FUTIME
1313 ? futimes (req->int1, times)
1314 : utimes (req->ptr1, times);
1315 }
1316
1317 case REQ_GROUP:
1318 case REQ_NOP:
1319 break;
1320
1321 case REQ_QUIT:
1322 goto quit;
1323
1324 default:
1325 req->result = -1;
1326 break;
1327 }
1328
1329 req->errorno = errno;
1330
1331 X_LOCK (reslock);
1332
1333 ++npending;
1334
1335 if (!reqq_push (&res_queue, req))
1336 {
1337 /* write a dummy byte to the pipe so fh becomes ready */
1338 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1339
1340 /* optionally signal the main thread asynchronously */
1341 if (main_sig)
1342 pthread_kill (main_tid, main_sig);
1343 }
1344
1345 self->req = 0;
1346 worker_clear (self);
1347
1348 X_UNLOCK (reslock);
1349 }
1350
1351quit:
1352 X_LOCK (wrklock);
1353 worker_free (self);
1354 X_UNLOCK (wrklock);
1355
1356 return 0;
1357 }//D
1358}
1359
1360/*****************************************************************************/
1361
1362static void atfork_prepare (void)
1363{
1364 X_LOCK (wrklock);
1365 X_LOCK (reqlock);
1366 X_LOCK (reslock);
1367#if !HAVE_PREADWRITE
1368 X_LOCK (preadwritelock);
1369#endif
1370#if !HAVE_READDIR_R
1371 X_LOCK (readdirlock);
1372#endif
1373}
1374
1375static void atfork_parent (void)
1376{
1377#if !HAVE_READDIR_R
1378 X_UNLOCK (readdirlock);
1379#endif
1380#if !HAVE_PREADWRITE
1381 X_UNLOCK (preadwritelock);
1382#endif
1383 X_UNLOCK (reslock);
1384 X_UNLOCK (reqlock);
1385 X_UNLOCK (wrklock);
1386}
1387
1388static void atfork_child (void)
1389{
1390 aio_req prv;
1391
1392 while (prv = reqq_shift (&req_queue))
1393 req_destroy (prv);
1394
1395 while (prv = reqq_shift (&res_queue))
1396 req_destroy (prv);
1397
1398 while (wrk_first.next != &wrk_first)
1399 {
1400 worker *wrk = wrk_first.next;
1401
1402 if (wrk->req)
1403 req_destroy (wrk->req);
1404
1405 worker_clear (wrk);
1406 worker_free (wrk);
1407 }
1408
1409 started = 0;
1410 idle = 0;
1411 nreqs = 0;
1412 nready = 0;
1413 npending = 0;
1414
1415 create_respipe ();
1416
1417 atfork_parent ();
1418} 795}
1419 796
1420#define dREQ \ 797#define dREQ \
798 SV *cb_cv; \
1421 aio_req req; \ 799 aio_req req; \
1422 int req_pri = next_pri; \ 800 int req_pri = next_pri; \
1423 next_pri = DEFAULT_PRI + PRI_BIAS; \ 801 next_pri = EIO_PRI_DEFAULT; \
1424 \ 802 \
1425 if (SvOK (callback) && !SvROK (callback)) \ 803 cb_cv = get_cb (callback); \
1426 croak ("callback must be undef or of reference type"); \
1427 \ 804 \
1428 Newz (0, req, 1, aio_cb); \ 805 Newz (0, req, 1, eio_req); \
1429 if (!req) \ 806 if (!req) \
1430 croak ("out of memory during aio_req allocation"); \ 807 croak ("out of memory during eio_req allocation"); \
1431 \ 808 \
1432 req->callback = newSVsv (callback); \ 809 req->callback = SvREFCNT_inc (cb_cv); \
1433 req->pri = req_pri 810 req->pri = req_pri
1434 811
1435#define REQ_SEND \ 812#define REQ_SEND \
813 PUTBACK; \
1436 req_send (req); \ 814 req_submit (req); \
815 SPAGAIN; \
1437 \ 816 \
1438 if (GIMME_V != G_VOID) \ 817 if (GIMME_V != G_VOID) \
1439 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 818 XPUSHs (req_sv (req, aio_req_stash));
1440 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
1441MODULE = IO::AIO PACKAGE = IO::AIO 876MODULE = IO::AIO PACKAGE = IO::AIO
1442 877
1443PROTOTYPES: ENABLE 878PROTOTYPES: ENABLE
1444 879
1445BOOT: 880BOOT:
1446{ 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
1447 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);
1448 1003
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1004 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1005 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1451 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1452 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1453 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1454#ifdef _WIN32
1455 X_MUTEX_CHECK (wrklock);
1456 X_MUTEX_CHECK (reslock);
1457 X_MUTEX_CHECK (reqlock);
1458 X_MUTEX_CHECK (reqwait);
1459 X_MUTEX_CHECK (preadwritelock);
1460 X_MUTEX_CHECK (readdirlock);
1461 1006
1462 X_COND_CHECK (reqwait); 1007 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1463#else
1464 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1465 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1466#endif
1467 1008
1468 create_respipe (); 1009 reinit ();
1469
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1471} 1010}
1472 1011
1473void 1012void
1013reinit ()
1014 PROTOTYPE:
1015
1016void
1474max_poll_reqs (int nreqs) 1017max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 1018 PROTOTYPE: $
1476 CODE: 1019 CODE:
1477 max_poll_reqs = nreqs; 1020 eio_set_max_poll_reqs (nreqs);
1478 1021
1479void 1022void
1480max_poll_time (double nseconds) 1023max_poll_time (double nseconds)
1481 PROTOTYPE: $ 1024 PROTOTYPE: $
1482 CODE: 1025 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 1026 eio_set_max_poll_time (nseconds);
1484 1027
1485void 1028void
1486min_parallel (int nthreads) 1029min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 1030 PROTOTYPE: $
1496 CODE: 1031 CODE:
1497 set_max_idle (nthreads); 1032 eio_set_min_parallel (nthreads);
1498 1033
1499int 1034void
1500max_outstanding (int maxreqs) 1035max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 1036 PROTOTYPE: $
1502 CODE: 1037 CODE:
1503 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:
1504 max_outstanding = maxreqs; 1056 max_outstanding = maxreqs;
1505 OUTPUT: 1057
1506 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}
1507 1069
1508void 1070void
1509aio_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)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 1072 PPCODE:
1512{ 1073{
1513 dREQ; 1074 dREQ;
1514 1075
1515 req->type = REQ_OPEN; 1076 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 1077 req_set_path1 (req, pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 1078 req->int1 = flags;
1519 req->mode = mode; 1079 req->int2 = mode;
1520 1080
1521 REQ_SEND; 1081 REQ_SEND;
1522} 1082}
1523 1083
1524void 1084void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1085aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 1086 ALIAS:
1528 aio_fsync = REQ_FSYNC 1087 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 1088 aio_fdatasync = EIO_FDATASYNC
1089 aio_syncfs = EIO_SYNCFS
1530 PPCODE: 1090 PPCODE:
1531{ 1091{
1092 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 1093 dREQ;
1533 1094
1534 req->type = ix; 1095 req->type = ix;
1535 req->sv1 = newSVsv (fh); 1096 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1097 req->int1 = fd;
1537 1098
1538 REQ_SEND (req); 1099 REQ_SEND (req);
1539} 1100}
1540 1101
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 1102void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 1103aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 1104 PPCODE:
1553{ 1105{
1106 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1107 dREQ;
1555 1108
1556 req->type = REQ_CLOSE; 1109 req->type = EIO_SYNC_FILE_RANGE;
1110 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 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;
1558 1166
1559 REQ_SEND (req); 1167 REQ_SEND (req);
1560} 1168}
1561 1169
1562void 1170void
1563aio_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)
1564 ALIAS: 1172 ALIAS:
1565 aio_read = REQ_READ 1173 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1174 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1175 PPCODE:
1569{ 1176{
1570 STRLEN svlen; 1177 STRLEN svlen;
1178 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1179 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1180 UV len = SvUV (length);
1573 1181
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1182 if (dataoffset < 0)
1578 dataoffset += svlen; 1183 dataoffset += svlen;
1579 1184
1580 if (dataoffset < 0 || dataoffset > svlen) 1185 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1186 croak ("dataoffset outside of data scalar");
1582 1187
1583 if (ix == REQ_WRITE) 1188 if (ix == EIO_WRITE)
1584 { 1189 {
1585 /* write: check length and adjust. */ 1190 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1191 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1192 len = svlen - dataoffset;
1588 } 1193 }
1589 else 1194 else
1590 { 1195 {
1591 /* read: grow scalar as necessary */ 1196 /* read: check type and grow scalar as necessary */
1197 SvUPGRADE (data, SVt_PV);
1592 svptr = SvGROW (data, len + dataoffset + 1); 1198 svptr = SvGROW (data, len + dataoffset + 1);
1593 } 1199 }
1594 1200
1595 if (len < 0)
1596 croak ("length must not be negative");
1597
1598 { 1201 {
1599 dREQ; 1202 dREQ;
1600 1203
1601 req->type = ix; 1204 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1205 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1206 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1207 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1208 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1209 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1210 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1211 req->stroffset = dataoffset;
1610 1212
1611 if (!SvREADONLY (data)) 1213 if (!SvREADONLY (data))
1612 { 1214 {
1613 SvREADONLY_on (data); 1215 SvREADONLY_on (data);
… …
1617 REQ_SEND; 1219 REQ_SEND;
1618 } 1220 }
1619} 1221}
1620 1222
1621void 1223void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1224aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1623 PROTOTYPE: $$;$ 1225 ALIAS:
1226 aio_readlink = EIO_READLINK
1227 aio_realpath = EIO_REALPATH
1624 PPCODE: 1228 PPCODE:
1625{ 1229{
1626 SV *data;
1627 dREQ; 1230 dREQ;
1628 1231
1629 data = newSV (NAME_MAX);
1630 SvPOK_on (data);
1631
1632 req->type = REQ_READLINK; 1232 req->type = ix;
1633 req->sv1 = newSVsv (path); 1233 req_set_path1 (req, pathname);
1634 req->ptr2 = SvPVbyte_nolen (req->sv1);
1635 req->sv2 = data;
1636 req->ptr1 = SvPVbyte_nolen (data);
1637 1234
1638 REQ_SEND; 1235 REQ_SEND;
1639} 1236}
1640 1237
1641void 1238void
1642aio_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)
1643 PROTOTYPE: $$$$;$
1644 PPCODE: 1240 PPCODE:
1645{ 1241{
1242 int ifd = s_fileno_croak (in_fh , 0);
1243 int ofd = s_fileno_croak (out_fh, 1);
1646 dREQ; 1244 dREQ;
1647 1245
1648 req->type = REQ_SENDFILE; 1246 req->type = EIO_SENDFILE;
1649 req->sv1 = newSVsv (out_fh); 1247 req->sv1 = newSVsv (out_fh);
1650 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1248 req->int1 = ofd;
1651 req->sv2 = newSVsv (in_fh); 1249 req->sv2 = newSVsv (in_fh);
1652 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1250 req->int2 = ifd;
1653 req->offs = SvVAL64 (in_offset); 1251 req->offs = in_offset;
1654 req->size = length; 1252 req->size = length;
1655 1253
1656 REQ_SEND; 1254 REQ_SEND;
1657} 1255}
1658 1256
1659void 1257void
1660aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1258aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$;$
1662 PPCODE: 1259 PPCODE:
1663{ 1260{
1261 int fd = s_fileno_croak (fh, 0);
1664 dREQ; 1262 dREQ;
1665 1263
1666 req->type = REQ_READAHEAD; 1264 req->type = EIO_READAHEAD;
1667 req->sv1 = newSVsv (fh); 1265 req->sv1 = newSVsv (fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1266 req->int1 = fd;
1669 req->offs = SvVAL64 (offset); 1267 req->offs = offset;
1670 req->size = length; 1268 req->size = length;
1671 1269
1672 REQ_SEND; 1270 REQ_SEND;
1673} 1271}
1674 1272
1675void 1273void
1676aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1274aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1677 ALIAS: 1275 ALIAS:
1678 aio_stat = REQ_STAT 1276 aio_stat = EIO_STAT
1679 aio_lstat = REQ_LSTAT 1277 aio_lstat = EIO_LSTAT
1278 aio_statvfs = EIO_STATVFS
1680 PPCODE: 1279 PPCODE:
1681{ 1280{
1682 dREQ; 1281 dREQ;
1683 1282
1684 req->ptr2 = malloc (sizeof (Stat_t));
1685 if (!req->ptr2)
1686 {
1687 req_destroy (req);
1688 croak ("out of memory during aio_stat statdata allocation");
1689 }
1690
1691 req->flags |= FLAG_PTR2_FREE;
1692 req->sv1 = newSVsv (fh_or_path); 1283 req->sv1 = newSVsv (fh_or_path);
1693 1284 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1694 if (SvPOK (fh_or_path))
1695 {
1696 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 }
1699 else
1700 {
1701 req->type = REQ_FSTAT;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1703 }
1704
1705 REQ_SEND; 1285 REQ_SEND;
1706} 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
1707 1303
1708void 1304void
1709aio_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)
1710 PPCODE: 1306 PPCODE:
1711{ 1307{
1712 dREQ; 1308 dREQ;
1713 1309
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1310 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1311 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1312 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1717
1718 if (SvPOK (fh_or_path))
1719 {
1720 req->type = REQ_UTIME;
1721 req->ptr1 = SvPVbyte_nolen (req->sv1);
1722 }
1723 else
1724 {
1725 req->type = REQ_FUTIME;
1726 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1727 }
1728 1313
1729 REQ_SEND; 1314 REQ_SEND;
1730} 1315}
1731 1316
1732void 1317void
1733aio_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)
1734 PPCODE: 1319 PPCODE:
1735{ 1320{
1736 dREQ; 1321 dREQ;
1737 1322
1738 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1323 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1324 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1741 if (SvPOK (fh_or_path))
1742 {
1743 req->type = REQ_TRUNCATE;
1744 req->ptr1 = SvPVbyte_nolen (req->sv1);
1745 }
1746 else
1747 {
1748 req->type = REQ_FTRUNCATE;
1749 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1750 }
1751 1325
1752 REQ_SEND; 1326 REQ_SEND;
1753} 1327}
1754 1328
1755void 1329void
1756aio_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
1757 PPCODE: 1334 PPCODE:
1758{ 1335{
1759 dREQ; 1336 dREQ;
1760 1337
1761 req->mode = mode; 1338 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1339 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1763
1764 if (SvPOK (fh_or_path))
1765 {
1766 req->type = REQ_CHMOD;
1767 req->ptr1 = SvPVbyte_nolen (req->sv1);
1768 }
1769 else
1770 {
1771 req->type = REQ_FCHMOD;
1772 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1773 }
1774 1340
1775 REQ_SEND; 1341 REQ_SEND;
1776} 1342}
1777 1343
1778void 1344void
… …
1781{ 1347{
1782 dREQ; 1348 dREQ;
1783 1349
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1350 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1351 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1352 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1787
1788 if (SvPOK (fh_or_path))
1789 {
1790 req->type = REQ_CHOWN;
1791 req->ptr1 = SvPVbyte_nolen (req->sv1);
1792 }
1793 else
1794 {
1795 req->type = REQ_FCHOWN;
1796 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1797 }
1798 1353
1799 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;
1800} 1372}
1801 1373
1802void 1374void
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1375aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1804 ALIAS: 1376 ALIAS:
1805 aio_unlink = REQ_UNLINK 1377 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1378 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1379 aio_readdir = EIO_READDIR
1808 PPCODE: 1380 PPCODE:
1809{ 1381{
1810 dREQ; 1382 dREQ;
1811 1383
1812 req->type = ix; 1384 req->type = ix;
1813 req->sv1 = newSVsv (pathname); 1385 req_set_path1 (req, pathname);
1814 req->ptr1 = SvPVbyte_nolen (req->sv1);
1815 1386
1816 REQ_SEND; 1387 REQ_SEND;
1817} 1388}
1818 1389
1819void 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
1820aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1410aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1821 PPCODE: 1411 PPCODE:
1822{ 1412{
1823 dREQ; 1413 dREQ;
1824 1414
1825 req->type = REQ_MKDIR; 1415 req->type = EIO_MKNOD;
1826 req->sv1 = newSVsv (pathname);
1827 req->ptr1 = SvPVbyte_nolen (req->sv1);
1828 req->mode = mode; 1416 req->int2 = (mode_t)mode;
1829 1417 req->offs = dev;
1830 REQ_SEND; 1418 req_set_path1 (req, pathname);
1831}
1832
1833void
1834aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1835 ALIAS:
1836 aio_link = REQ_LINK
1837 aio_symlink = REQ_SYMLINK
1838 aio_rename = REQ_RENAME
1839 PPCODE:
1840{
1841 dREQ;
1842
1843 req->type = ix;
1844 req->sv2 = newSVsv (oldpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2);
1846 req->sv1 = newSVsv (newpath);
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1419
1849 REQ_SEND; 1420 REQ_SEND;
1850} 1421}
1851 1422
1852void 1423void
1853aio_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)
1854 PPCODE: 1425 ALIAS:
1426 aio_mtouch = EIO_MTOUCH
1427 aio_msync = EIO_MSYNC
1428 PPCODE:
1855{ 1429{
1856 dREQ; 1430 STRLEN svlen;
1857 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
1858 req->type = REQ_MKNOD; 1476 req->type = EIO_MLOCK;
1859 req->sv1 = newSVsv (pathname); 1477 req->sv2 = SvREFCNT_inc (data);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1); 1478 req->ptr2 = (char *)svptr + offset;
1861 req->mode = (mode_t)mode;
1862 req->offs = dev; 1479 req->size = len;
1863 1480
1864 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;
1865} 1495}
1866 1496
1867void 1497void
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1498aio_busy (double delay, SV *callback=&PL_sv_undef)
1869 PPCODE: 1499 PPCODE:
1870{ 1500{
1871 dREQ; 1501 dREQ;
1872 1502
1873 req->type = REQ_BUSY; 1503 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1504 req->nv1 = delay < 0. ? 0. : delay;
1875 1505
1876 REQ_SEND; 1506 REQ_SEND;
1877} 1507}
1878 1508
1879void 1509void
1880aio_group (SV *callback=&PL_sv_undef) 1510aio_group (SV *callback=&PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1511 PPCODE:
1883{ 1512{
1884 dREQ; 1513 dREQ;
1885 1514
1886 req->type = REQ_GROUP; 1515 req->type = EIO_GROUP;
1887 1516
1888 req_send (req); 1517 req_submit (req);
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1518 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1519}
1891 1520
1892void 1521void
1893aio_nop (SV *callback=&PL_sv_undef) 1522aio_nop (SV *callback=&PL_sv_undef)
1894 ALIAS: 1523 ALIAS:
1895 aio_nop = REQ_NOP 1524 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1525 aio_sync = EIO_SYNC
1897 PPCODE: 1526 PPCODE:
1898{ 1527{
1899 dREQ; 1528 dREQ;
1900 1529
1901 req->type = ix; 1530 req->type = ix;
… …
1903 REQ_SEND; 1532 REQ_SEND;
1904} 1533}
1905 1534
1906int 1535int
1907aioreq_pri (int pri = 0) 1536aioreq_pri (int pri = 0)
1908 PROTOTYPE: ;$
1909 CODE: 1537 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 1538 RETVAL = next_pri;
1911 if (items > 0) 1539 if (items > 0)
1912 { 1540 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 1541 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 1542 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 1543 next_pri = pri;
1916 } 1544 }
1917 OUTPUT: 1545 OUTPUT:
1918 RETVAL 1546 RETVAL
1919 1547
1920void 1548void
1921aioreq_nice (int nice = 0) 1549aioreq_nice (int nice = 0)
1922 CODE: 1550 CODE:
1923 nice = next_pri - nice; 1551 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 1552 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 1553 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 1554 next_pri = nice;
1927 1555
1928void 1556void
1929flush () 1557flush ()
1930 PROTOTYPE:
1931 CODE: 1558 CODE:
1932 while (nreqs) 1559 while (eio_nreqs ())
1933 { 1560 {
1934 poll_wait (); 1561 poll_wait ();
1935 poll_cb (); 1562 poll_cb ();
1936 } 1563 }
1937 1564
1938int 1565int
1939poll() 1566poll ()
1940 PROTOTYPE:
1941 CODE: 1567 CODE:
1942 poll_wait (); 1568 poll_wait ();
1943 RETVAL = poll_cb (); 1569 RETVAL = poll_cb ();
1944 OUTPUT: 1570 OUTPUT:
1945 RETVAL 1571 RETVAL
1946 1572
1947int 1573int
1948poll_fileno() 1574poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 1575 CODE:
1951 RETVAL = respipe [0]; 1576 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 1577 OUTPUT:
1953 RETVAL 1578 RETVAL
1954 1579
1955int 1580int
1956poll_cb(...) 1581poll_cb (...)
1957 PROTOTYPE: 1582 PROTOTYPE:
1958 CODE: 1583 CODE:
1959 RETVAL = poll_cb (); 1584 RETVAL = poll_cb ();
1960 OUTPUT: 1585 OUTPUT:
1961 RETVAL 1586 RETVAL
1962 1587
1963void 1588void
1964poll_wait() 1589poll_wait ()
1965 PROTOTYPE:
1966 CODE: 1590 CODE:
1967 poll_wait (); 1591 poll_wait ();
1968 1592
1969void
1970setsig (int signum = SIGIO)
1971 PROTOTYPE: ;$
1972 CODE:
1973{
1974 if (block_sig_level)
1975 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1976
1977 X_LOCK (reslock);
1978 main_tid = pthread_self ();
1979 main_sig = signum;
1980 X_UNLOCK (reslock);
1981
1982 if (main_sig && npending)
1983 pthread_kill (main_tid, main_sig);
1984}
1985
1986void
1987aio_block (SV *cb)
1988 PROTOTYPE: &
1989 PPCODE:
1990{
1991 int count;
1992
1993 block_sig ();
1994 PUSHMARK (SP);
1995 PUTBACK;
1996 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1997 unblock_sig ();
1998
1999 if (SvTRUE (ERRSV))
2000 croak (0);
2001
2002 XSRETURN (count);
2003}
2004
2005int 1593int
2006nreqs() 1594nreqs ()
2007 PROTOTYPE:
2008 CODE: 1595 CODE:
2009 RETVAL = nreqs; 1596 RETVAL = eio_nreqs ();
2010 OUTPUT: 1597 OUTPUT:
2011 RETVAL 1598 RETVAL
2012 1599
2013int 1600int
2014nready() 1601nready ()
2015 PROTOTYPE:
2016 CODE: 1602 CODE:
2017 RETVAL = get_nready (); 1603 RETVAL = eio_nready ();
2018 OUTPUT: 1604 OUTPUT:
2019 RETVAL 1605 RETVAL
2020 1606
2021int 1607int
2022npending() 1608npending ()
2023 PROTOTYPE:
2024 CODE: 1609 CODE:
2025 RETVAL = get_npending (); 1610 RETVAL = eio_npending ();
2026 OUTPUT: 1611 OUTPUT:
2027 RETVAL 1612 RETVAL
2028 1613
2029int 1614int
2030nthreads() 1615nthreads ()
2031 PROTOTYPE:
2032 CODE: 1616 CODE:
2033 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1617 RETVAL = eio_nthreads ();
2034 RETVAL = started;
2035 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2036 OUTPUT: 1618 OUTPUT:
2037 RETVAL 1619 RETVAL
2038 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
2039PROTOTYPES: DISABLE 1748PROTOTYPES: DISABLE
2040 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
2041MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1774MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2042 1775
2043void 1776void
2044cancel (aio_req_ornot req) 1777cancel (aio_req_ornot req)
2045 CODE: 1778 CODE:
2046 req_cancel (req); 1779 eio_cancel (req);
2047 1780
2048void 1781void
2049cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1782cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2050 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
2051 SvREFCNT_dec (req->callback); 1792 SvREFCNT_dec (req->callback);
2052 req->callback = newSVsv (callback); 1793 req->callback = SvREFCNT_inc (cb_cv);
1794 }
1795}
2053 1796
2054MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1797MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2055 1798
2056void 1799void
2057add (aio_req grp, ...) 1800add (aio_req grp, ...)
2058 PPCODE: 1801 PPCODE:
2059{ 1802{
2060 int i; 1803 int i;
2061 aio_req req;
2062
2063 if (main_sig && !block_sig_level)
2064 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2065 1804
2066 if (grp->int1 == 2) 1805 if (grp->int1 == 2)
2067 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");
2068 1807
2069 for (i = 1; i < items; ++i ) 1808 for (i = 1; i < items; ++i )
2070 { 1809 {
1810 aio_req req;
1811
2071 if (GIMME_V != G_VOID) 1812 if (GIMME_V != G_VOID)
2072 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1813 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2073 1814
2074 req = SvAIO_REQ (ST (i)); 1815 req = SvAIO_REQ (ST (i));
2075 1816
2076 if (req) 1817 if (req)
2077 { 1818 eio_grp_add (grp, req);
2078 ++grp->size;
2079 req->grp = grp;
2080
2081 req->grp_prev = 0;
2082 req->grp_next = grp->grp_first;
2083
2084 if (grp->grp_first)
2085 grp->grp_first->grp_prev = req;
2086
2087 grp->grp_first = req;
2088 }
2089 } 1819 }
2090} 1820}
2091 1821
2092void 1822void
2093cancel_subs (aio_req_ornot req) 1823cancel_subs (aio_req_ornot req)
… …
2102 AV *av; 1832 AV *av;
2103 1833
2104 grp->errorno = errno; 1834 grp->errorno = errno;
2105 1835
2106 av = newAV (); 1836 av = newAV ();
1837 av_extend (av, items - 1);
2107 1838
2108 for (i = 1; i < items; ++i ) 1839 for (i = 1; i < items; ++i )
2109 av_push (av, newSVsv (ST (i))); 1840 av_push (av, newSVsv (ST (i)));
2110 1841
2111 SvREFCNT_dec (grp->sv1); 1842 SvREFCNT_dec (grp->sv1);
… …
2118 grp->errorno = errorno; 1849 grp->errorno = errorno;
2119 1850
2120void 1851void
2121limit (aio_req grp, int limit) 1852limit (aio_req grp, int limit)
2122 CODE: 1853 CODE:
2123 grp->int2 = limit; 1854 eio_grp_limit (grp, limit);
2124 aio_grp_feed (grp);
2125 1855
2126void 1856void
2127feed (aio_req grp, SV *callback=&PL_sv_undef) 1857feed (aio_req grp, SV *callback=&PL_sv_undef)
2128 CODE: 1858 CODE:
2129{ 1859{
2130 SvREFCNT_dec (grp->sv2); 1860 SvREFCNT_dec (grp->sv2);
2131 grp->sv2 = newSVsv (callback); 1861 grp->sv2 = newSVsv (callback);
1862 grp->feed = aio_grp_feed;
2132 1863
2133 if (grp->int2 <= 0) 1864 if (grp->int2 <= 0)
2134 grp->int2 = 2; 1865 grp->int2 = 2;
2135 1866
2136 aio_grp_feed (grp); 1867 eio_grp_limit (grp, grp->int2);
2137} 1868}
2138 1869

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