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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.113 by root, Wed Apr 16 16:45:18 2008 UTC vs.
Revision 1.150 by root, Wed Jul 1 08:11:24 2009 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"
…		…
13	#include <sys/stat.h>	13	#include <sys/stat.h>
14	#include <limits.h>	14	#include <limits.h>
15	#include <fcntl.h>	15	#include <fcntl.h>
16	#include <sched.h>	16	#include <sched.h>
17		17
		18	/* perl namespace pollution */
		19	#undef VERSION
		20
18	#ifdef _WIN32	21	#ifdef _WIN32
19		22
20	# define SIGIO 0	23	# define EIO_STRUCT_DIRENT Direntry_t
21	typedef Direntry_t X_DIRENT;
22	#undef malloc	24	# undef malloc
23	#undef free	25	# undef free
24		26
25	// perl overrides all those nice win32 functions	27	// perl overrides all those nice win32 functions
26	# undef open	28	# undef open
27	# undef read	29	# undef read
28	# undef write	30	# undef write
…		…
54	# define closedir(fd) (errno = ENOSYS, -1)	56	# define closedir(fd) (errno = ENOSYS, -1)
55	# define mkdir(a,b) mkdir (a)	57	# define mkdir(a,b) mkdir (a)
56		58
57	#else	59	#else
58		60
59	# include "autoconf/config.h"
60	# include <sys/time.h>	61	# include <sys/time.h>
61	# include <sys/select.h>	62	# include <sys/select.h>
62	# include <unistd.h>	63	# include <unistd.h>
63	# include <utime.h>	64	# include <utime.h>
64	# include <signal.h>	65	# include <signal.h>
65	typedef struct dirent X_DIRENT;	66	# define EIO_STRUCT_DIRENT struct dirent
66		67
67	#endif	68	#endif
68		69
69	#if HAVE_SENDFILE	70	/* perl stupidly overrides readdir and maybe others */
70	# if __linux	71	/* with thread-unsafe versions, imagine that :( */
71	# include <sys/sendfile.h>	72	#undef readdir
72	# elif __freebsd	73	#undef opendir
73	# include <sys/socket.h>	74	#undef closedir
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
82	#endif
83		75
84	/* number of seconds after which idle threads exit */	76	#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		77
95	/* use NV for 32 bit perls as it allows larger offsets */	78	/* use NV for 32 bit perls as it allows larger offsets */
96	#if IVSIZE >= 8	79	#if IVSIZE >= 8
		80	# define VAL64 IV
97	# define SvVAL64 SvIV	81	# define SvVAL64 SvIV
		82	# define newSVval64 newSViv
98	#else	83	#else
		84	# define VAL64 NV
99	# define SvVAL64 SvNV	85	# define SvVAL64 SvNV
		86	# define newSVval64 newSVnv
100	#endif	87	#endif
101		88
		89	/*****************************************************************************/
		90
		91	#if __GNUC__ >= 3
		92	# define expect(expr,value) __builtin_expect ((expr),(value))
		93	#else
		94	# define expect(expr,value) (expr)
		95	#endif
		96
		97	#define expect_false(expr) expect ((expr) != 0, 0)
		98	#define expect_true(expr) expect ((expr) != 0, 1)
		99
		100	/*****************************************************************************/
		101
102	static HV *stash;	102	static HV *stash;
103
104	#define dBUF \
105	char *aio_buf; \
106	X_LOCK (wrklock); \
107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
108	X_UNLOCK (wrklock); \
109	if (!aio_buf) \
110	return -1;
111
112	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
113		104	typedef int aio_rfd; /* read file desriptor */
114	enum {	105	typedef int aio_wfd; /* write file descriptor */
115	REQ_QUIT,
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	};
131		106
132	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	#define AIO_REQ_KLASS "IO::AIO::REQ"
133	#define AIO_GRP_KLASS "IO::AIO::GRP"	108	#define AIO_GRP_KLASS "IO::AIO::GRP"
134		109
135	typedef struct aio_cb	110	#define EIO_REQ_MEMBERS \
136	{
137	struct aio_cb *volatile next;
138
139	SV *callback;	111	SV *callback; \
140	SV *sv1, *sv2;	112	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;	113	STRLEN stroffset; \
148	int type;	114	SV *self;
149	int int1, int2, int3;
150	int errorno;
151	mode_t mode; /* open */
152		115
153	unsigned char flags;	116	#define EIO_NO_WRAPPERS 1
154	unsigned char pri;
155		117
156	SV *self; /* the perl counterpart of this request, if any */	118	#include "libeio/eio.h"
157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	119
158	} aio_cb;	120	#ifndef POSIX_FADV_NORMAL
		121	# define POSIX_FADV_NORMAL 0
		122	# define NO_FADVISE 1
		123	#endif
		124
		125	#ifndef POSIX_FADV_SEQUENTIAL
		126	# define POSIX_FADV_SEQUENTIAL 0
		127	#endif
		128
		129	#ifndef POSIX_FADV_RANDOM
		130	# define POSIX_FADV_RANDOM 0
		131	#endif
		132
		133	#ifndef POSIX_FADV_NOREUSE
		134	# define POSIX_FADV_NOREUSE 0
		135	#endif
		136
		137	#ifndef POSIX_FADV_WILLNEED
		138	# define POSIX_FADV_WILLNEED 0
		139	#endif
		140
		141	#ifndef POSIX_FADV_DONTNEED
		142	# define POSIX_FADV_DONTNEED 0
		143	#endif
		144
		145	static int req_invoke (eio_req *req);
		146	#define EIO_FINISH(req) req_invoke (req)
		147	static void req_destroy (eio_req *grp);
		148	#define EIO_DESTROY(req) req_destroy (req)
159		149
160	enum {	150	enum {
161	FLAG_CANCELLED = 0x01, /* request was cancelled */
162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164	};	152	};
165		153
		154	#include "libeio/eio.c"
		155
166	typedef aio_cb *aio_req;	156	typedef eio_req *aio_req;
167	typedef aio_cb *aio_req_ornot;	157	typedef eio_req *aio_req_ornot;
168		158
169	enum {	159	static SV *on_next_submit;
170	PRI_MIN = -4,	160	static int next_pri = EIO_PRI_DEFAULT;
171	PRI_MAX = 4,	161	static int max_outstanding;
172		162
173	DEFAULT_PRI = 0,
174	PRI_BIAS = -PRI_MIN,
175	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176	};
177
178	#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180	static unsigned int max_poll_time = 0;
181	static unsigned int max_poll_reqs = 0;
182
183	/* calculcate time difference in ~1/AIO_TICKS of a second */
184	static 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
190	static thread_t main_tid;
191	static int main_sig;
192	static int block_sig_level;
193
194	void 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
209	void 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
224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226	static unsigned int started, idle, wanted;
227
228	/* worker threads management */
229	static mutex_t wrklock = X_MUTEX_INIT;
230
231	typedef 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
243	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245	static 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
260	static void worker_free (worker *wrk)
261	{
262	wrk->next->prev = wrk->prev;
263	wrk->prev->next = wrk->next;
264
265	free (wrk);
266	}
267
268	static volatile unsigned int nreqs, nready, npending;
269	static volatile unsigned int max_idle = 4;
270	static volatile unsigned int max_outstanding = 0xffffffff;
271	static int respipe_osf [2], respipe [2] = { -1, -1 };	163	static int respipe_osf [2], respipe [2] = { -1, -1 };
272		164
273	static mutex_t reslock = X_MUTEX_INIT;
274	static mutex_t reqlock = X_MUTEX_INIT;
275	static cond_t reqwait = X_COND_INIT;
276
277	#if WORDACCESS_UNSAFE
278
279	static 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
290	static 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
301	static 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	*/
325	typedef struct {
326	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327	int size;
328	} reqq;
329
330	static reqq req_queue;
331	static reqq res_queue;
332
333	int 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
349	aio_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
374	static int poll_cb (void);
375	static int req_invoke (aio_req req);
376	static void req_destroy (aio_req req);	165	static void req_destroy (aio_req req);
377	static void req_cancel (aio_req req);	166	static void req_cancel (aio_req req);
		167
		168	static void want_poll (void)
		169	{
		170	/* write a dummy byte to the pipe so fh becomes ready */
		171	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		172	}
		173
		174	static void done_poll (void)
		175	{
		176	/* read any signals sent by the worker threads */
		177	char buf [4];
		178	while (respipe_read (respipe [0], buf, 4) == 4)
		179	;
		180	}
378		181
379	/* must be called at most once */	182	/* must be called at most once */
380	static SV *req_sv (aio_req req, const char *klass)	183	static SV *req_sv (aio_req req, const char *klass)
381	{	184	{
382	if (!req->self)	185	if (!req->self)
…		…
400	return mg ? (aio_req)mg->mg_ptr : 0;	203	return mg ? (aio_req)mg->mg_ptr : 0;
401	}	204	}
402		205
403	static void aio_grp_feed (aio_req grp)	206	static void aio_grp_feed (aio_req grp)
404	{	207	{
405	block_sig ();	208	if (grp->sv2 && SvOK (grp->sv2))
406
407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408	{	209	{
409	int old_len = grp->size;
410
411	if (grp->sv2 && SvOK (grp->sv2))
412	{
413	dSP;	210	dSP;
414		211
415	ENTER;	212	ENTER;
416	SAVETMPS;	213	SAVETMPS;
417	PUSHMARK (SP);	214	PUSHMARK (SP);
418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
419	PUTBACK;	216	PUTBACK;
420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421	SPAGAIN;	218	SPAGAIN;
422	FREETMPS;	219	FREETMPS;
423	LEAVE;	220	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	}	221	}
434
435	unblock_sig ();
436	}	222	}
437		223
438	static void aio_grp_dec (aio_req grp)	224	static void req_submit (eio_req *req)
439	{	225	{
440	--grp->size;	226	eio_submit (req);
441		227
442	/* call feeder, if applicable */	228	if (expect_false (on_next_submit))
443	aio_grp_feed (grp);
444
445	/* finish, if done */
446	if (!grp->size && grp->int1)
447	{	229	{
448	block_sig ();	230	dSP;
		231	SV *cb = sv_2mortal (on_next_submit);
449		232
450	if (!req_invoke (grp))	233	on_next_submit = 0;
451	{
452	req_destroy (grp);
453	unblock_sig ();
454	croak (0);
455	}
456		234
457	req_destroy (grp);	235	PUSHMARK (SP);
458	unblock_sig ();	236	PUTBACK;
		237	call_sv (cb, G_DISCARD | G_EVAL);
459	}	238	}
460	}	239	}
461		240
462	static int req_invoke (aio_req req)	241	static int req_invoke (eio_req *req)
463	{	242	{
464	dSP;	243	dSP;
465		244
466	if (req->flags & FLAG_SV2_RO_OFF)	245	if (req->flags & FLAG_SV2_RO_OFF)
467	SvREADONLY_off (req->sv2);	246	SvREADONLY_off (req->sv2);
468		247
469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	248	if (!EIO_CANCELLED (req) && req->callback)
470	{	249	{
471	ENTER;	250	ENTER;
472	SAVETMPS;	251	SAVETMPS;
473	PUSHMARK (SP);	252	PUSHMARK (SP);
474	EXTEND (SP, 1);	253	EXTEND (SP, 1);
475		254
476	switch (req->type)	255	switch (req->type)
477	{	256	{
478	case REQ_READDIR:	257	case EIO_READDIR:
479	{	258	{
480	SV *rv = &PL_sv_undef;	259	SV *rv = &PL_sv_undef;
481		260
482	if (req->result >= 0)	261	if (req->result >= 0)
483	{	262	{
484	int i;	263	int i;
485	char *buf = req->ptr2;	264	char *names = (char *)req->ptr2;
		265	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486	AV *av = newAV ();	266	AV *av = newAV ();
487		267
488	av_extend (av, req->result - 1);	268	av_extend (av, req->result - 1);
489		269
490	for (i = 0; i < req->result; ++i)	270	for (i = 0; i < req->result; ++i)
491	{	271	{
492	SV *sv = newSVpv (buf, 0);	272	if (req->int1 & EIO_READDIR_DENTS)
		273	{
		274	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493		275
		276	if (req->int1 & EIO_READDIR_CUSTOM2)
		277	{
		278	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		279	AV *avent = newAV ();
		280
		281	av_extend (avent, 2);
		282
		283	if (!sv_type [ent->type])
		284	{
		285	sv_type [ent->type] = newSViv (ent->type);
		286	SvREADONLY_on (sv_type [ent->type]);
		287	}
		288
		289	av_store (avent, 0, namesv);
		290	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		291	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		292
		293	av_store (av, i, newRV_noinc ((SV *)avent));
		294	}
		295	else
494	av_store (av, i, sv);	296	av_store (av, i, namesv);
		297
		298	++ent;
		299	}
		300	else
		301	{
		302	SV *name = newSVpv (names, 0);
		303	av_store (av, i, name);
495	buf += SvCUR (sv) + 1;	304	names += SvCUR (name) + 1;
		305	}
496	}	306	}
497		307
498	rv = sv_2mortal (newRV_noinc ((SV *)av));	308	rv = sv_2mortal (newRV_noinc ((SV *)av));
499	}	309	}
500		310
501	PUSHs (rv);	311	PUSHs (rv);
		312
		313	if (req->int1 & EIO_READDIR_CUSTOM1)
		314	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502	}	315	}
503	break;	316	break;
504		317
505	case REQ_OPEN:	318	case EIO_OPEN:
506	{	319	{
507	/* convert fd to fh */	320	/* convert fd to fh */
508	SV *fh = &PL_sv_undef;	321	SV *fh = &PL_sv_undef;
509		322
510	if (req->result >= 0)	323	if (req->result >= 0)
…		…
512	GV *gv = (GV *)sv_newmortal ();	325	GV *gv = (GV *)sv_newmortal ();
513	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
514	char sym [64];	327	char sym [64];
515	int symlen;	328	int symlen;
516		329
517	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
518	gv_init (gv, stash, sym, symlen, 0);	331	gv_init (gv, stash, sym, symlen, 0);
519		332
520	symlen = snprintf (	333	symlen = snprintf (
521	sym,	334	sym,
522	sizeof (sym),	335	sizeof (sym),
523	"%s&=%d",	336	"%s&=%d",
524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	337	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525	req->result	338	(int)req->result
526	);	339	);
527		340
528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	341	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
529	fh = (SV *)gv;	342	fh = (SV *)gv;
530	}	343	}
531		344
532	PUSHs (fh);	345	PUSHs (fh);
533	}	346	}
534	break;	347	break;
535		348
536	case REQ_GROUP:	349	case EIO_GROUP:
537	req->int1 = 2; /* mark group as finished */	350	req->int1 = 2; /* mark group as finished */
538		351
539	if (req->sv1)	352	if (req->sv1)
540	{	353	{
541	int i;	354	int i;
…		…
545	for (i = 0; i <= AvFILL (av); ++i)	358	for (i = 0; i <= AvFILL (av); ++i)
546	PUSHs (*av_fetch (av, i, 0));	359	PUSHs (*av_fetch (av, i, 0));
547	}	360	}
548	break;	361	break;
549		362
550	case REQ_NOP:	363	case EIO_NOP:
551	case REQ_BUSY:	364	case EIO_BUSY:
552	break;	365	break;
553		366
554	case REQ_READLINK:	367	case EIO_READLINK:
555	if (req->result > 0)	368	if (req->result > 0)
556	{	369	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;	370	break;
562		371
563	case REQ_STAT:	372	case EIO_STAT:
564	case REQ_LSTAT:	373	case EIO_LSTAT:
565	case REQ_FSTAT:	374	case EIO_FSTAT:
566	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567	PL_laststatval = req->result;	376	PL_laststatval = req->result;
568	PL_statcache = *(Stat_t *)(req->ptr2);	377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569	PUSHs (sv_2mortal (newSViv (req->result)));	378	PUSHs (sv_2mortal (newSViv (req->result)));
570	break;	379	break;
571		380
572	case REQ_READ:	381	case EIO_READ:
		382	{
573	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574	*SvEND (req->sv2) = 0;	384	*SvEND (req->sv2) = 0;
		385	SvPOK_only (req->sv2);
		386	SvSETMAGIC (req->sv2);
575	PUSHs (sv_2mortal (newSViv (req->result)));	387	PUSHs (sv_2mortal (newSViv (req->result)));
		388	}
576	break;	389	break;
		390
		391	case EIO_DUP2:
		392	if (req->result > 0)
		393	req->result = 0;
		394	/* FALLTHROUGH */
577		395
578	default:	396	default:
579	PUSHs (sv_2mortal (newSViv (req->result)));	397	PUSHs (sv_2mortal (newSViv (req->result)));
580	break;	398	break;
581	}	399	}
…		…
590	LEAVE;	408	LEAVE;
591		409
592	PUTBACK;	410	PUTBACK;
593	}	411	}
594		412
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);	413	return !!SvTRUE (ERRSV);
610	}	414	}
611		415
612	static void req_destroy (aio_req req)	416	static void req_destroy (aio_req req)
613	{	417	{
614	if (req->self)	418	if (req->self)
…		…
619		423
620	SvREFCNT_dec (req->sv1);	424	SvREFCNT_dec (req->sv1);
621	SvREFCNT_dec (req->sv2);	425	SvREFCNT_dec (req->sv2);
622	SvREFCNT_dec (req->callback);	426	SvREFCNT_dec (req->callback);
623		427
624	if (req->flags & FLAG_PTR2_FREE)
625	free (req->ptr2);
626
627	Safefree (req);	428	Safefree (req);
628	}	429	}
629		430
630	static void req_cancel_subs (aio_req grp)	431	static void req_cancel_subs (aio_req grp)
631	{	432	{
632	aio_req sub;	433	aio_req sub;
633		434
634	if (grp->type != REQ_GROUP)	435	if (grp->type != EIO_GROUP)
635	return;	436	return;
636		437
637	SvREFCNT_dec (grp->sv2);	438	SvREFCNT_dec (grp->sv2);
638	grp->sv2 = 0;	439	grp->sv2 = 0;
639		440
640	for (sub = grp->grp_first; sub; sub = sub->grp_next)	441	eio_grp_cancel (grp);
641	req_cancel (sub);
642	}
643
644	static void req_cancel (aio_req req)
645	{
646	req->flags |= FLAG_CANCELLED;
647
648	req_cancel_subs (req);
649	}	442	}
650		443
651	#ifdef USE_SOCKETS_AS_HANDLES	444	#ifdef USE_SOCKETS_AS_HANDLES
652	# define TO_SOCKET(x) (win32_get_osfhandle (x))	445	# define TO_SOCKET(x) (win32_get_osfhandle (x))
653	#else	446	#else
…		…
690		483
691	respipe_osf [0] = TO_SOCKET (respipe [0]);	484	respipe_osf [0] = TO_SOCKET (respipe [0]);
692	respipe_osf [1] = TO_SOCKET (respipe [1]);	485	respipe_osf [1] = TO_SOCKET (respipe [1]);
693	}	486	}
694		487
695	X_THREAD_PROC (aio_proc);
696
697	static 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
720	static 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
732	static 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
749	static 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
768	static 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
775	static void min_parallel (int nthreads)
776	{
777	if (wanted < nthreads)
778	wanted = nthreads;
779	}
780
781	static void max_parallel (int nthreads)
782	{
783	if (wanted > nthreads)
784	wanted = nthreads;
785
786	while (started > wanted)
787	end_thread ();
788	}
789
790	static void poll_wait (void)	488	static void poll_wait (void)
791	{	489	{
792	fd_set rfd;	490	fd_set rfd;
793		491
794	while (nreqs)	492	while (eio_nreqs ())
795	{	493	{
796	int size;	494	int size;
797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);	495
		496	X_LOCK (reslock);
798	size = res_queue.size;	497	size = res_queue.size;
799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);	498	X_UNLOCK (reslock);
800		499
801	if (size)	500	if (size)
802	return;	501	return;
803		502
804	maybe_start_thread ();	503	etp_maybe_start_thread ();
805		504
806	FD_ZERO (&rfd);	505	FD_ZERO (&rfd);
807	FD_SET (respipe [0], &rfd);	506	FD_SET (respipe [0], &rfd);
808		507
809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);	508	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810	}	509	}
811	}	510	}
812		511
813	static int poll_cb (void)	512	static int poll_cb (void)
814	{	513	{
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 (;;)	514	for (;;)
828	{	515	{
829	for (;;)	516	int res = eio_poll ();
830	{
831	maybe_start_thread ();
832		517
833	X_LOCK (reslock);	518	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);	519	croak (0);
868	}
869		520
870	count++;	521	if (!max_outstanding || max_outstanding > eio_nreqs ())
871	}	522	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		523
890	poll_wait ();	524	poll_wait ();
891
892	++maxreqs;
893	}	525	}
894
895	unblock_sig ();
896	return count;
897	}	526	}
898		527
899	/*****************************************************************************/	528	static void atfork_child (void)
900	/* work around various missing functions */
901
902	#if !HAVE_PREADWRITE
903	# define pread aio_pread
904	# define pwrite aio_pwrite
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	*/
911	static mutex_t preadwritelock = X_MUTEX_INIT;
912
913	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914	{	529	{
915	ssize_t res;	530	create_respipe ();
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	}	531	}
927		532
928	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	533	static SV *
		534	get_cb (SV *cb_sv)
929	{	535	{
930	ssize_t res;	536	HV *st;
931	off_t ooffset;	537	GV *gvp;
		538	CV *cv;
932		539
933	X_LOCK (preadwritelock);	540	if (!SvOK (cb_sv))
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
949	int 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
964	int 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
979	static 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
1002	static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004	static 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 */
1030	static 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;	541	return 0;
1036		542
1037	#if HAVE_SENDFILE	543	cv = sv_2cv (cb_sv, &st, &gvp, 0);
1038	# if __linux
1039	res = sendfile (ofd, ifd, &offset, count);
1040		544
1041	# elif __freebsd	545	if (!cv)
1042	/*	546	croak ("IO::AIO callback must be undef or a CODE reference");
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		547
1050	if (res < 0 && sbytes)	548	return (SV *)cv;
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
1075	#else
1076	res = -1;
1077	errno = ENOSYS;
1078	#endif
1079
1080	if (res < 0
1081	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082	#if __solaris
1083	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084	#endif
1085	)
1086	)
1087	{
1088	/* emulate sendfile. this is a major pain in the ass */
1089	dBUF;
1090
1091	res = 0;
1092
1093	while (count)
1094	{
1095	ssize_t cnt;
1096
1097	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099	if (cnt <= 0)
1100	{
1101	if (cnt && !res) res = -1;
1102	break;
1103	}
1104
1105	cnt = write (ofd, aio_buf, cnt);
1106
1107	if (cnt <= 0)
1108	{
1109	if (cnt && !res) res = -1;
1110	break;
1111	}
1112
1113	offset += cnt;
1114	res += cnt;
1115	count -= cnt;
1116	}
1117	}
1118
1119	return res;
1120	}
1121
1122	/* read a full directory */
1123	static void scandir_ (aio_req req, worker *self)
1124	{
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
1183	static int
1184	aio_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
1210	/*****************************************************************************/
1211
1212	X_THREAD_PROC (aio_proc)
1213	{
1214	aio_req req;
1215	struct timespec ts;
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
1377	quit:
1378	X_LOCK (wrklock);
1379	worker_free (self);
1380	X_UNLOCK (wrklock);
1381
1382	return 0;
1383	}
1384
1385	/*****************************************************************************/
1386
1387	static 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
1400	static 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
1413	static 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	}	549	}
1444		550
1445	#define dREQ \	551	#define dREQ \
		552	SV *cb_cv; \
1446	aio_req req; \	553	aio_req req; \
1447	int req_pri = next_pri; \	554	int req_pri = next_pri; \
1448	next_pri = DEFAULT_PRI + PRI_BIAS; \	555	next_pri = EIO_PRI_DEFAULT; \
1449	\	556	\
1450	if (SvOK (callback) && !SvROK (callback)) \	557	cb_cv = get_cb (callback); \
1451	croak ("callback must be undef or of reference type"); \
1452	\	558	\
1453	Newz (0, req, 1, aio_cb); \	559	Newz (0, req, 1, eio_req); \
1454	if (!req) \	560	if (!req) \
1455	croak ("out of memory during aio_req allocation"); \	561	croak ("out of memory during eio_req allocation"); \
1456	\	562	\
1457	req->callback = newSVsv (callback); \	563	req->callback = SvREFCNT_inc (cb_cv); \
1458	req->pri = req_pri	564	req->pri = req_pri
1459		565
1460	#define REQ_SEND \	566	#define REQ_SEND \
		567	PUTBACK; \
1461	req_send (req); \	568	req_submit (req); \
		569	SPAGAIN; \
1462	\	570	\
1463	if (GIMME_V != G_VOID) \	571	if (GIMME_V != G_VOID) \
1464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	572	XPUSHs (req_sv (req, AIO_REQ_KLASS));
1465		573
		574	static int
		575	extract_fd (SV *fh, int wr)
		576	{
		577	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
		578
		579	if (fd < 0)
		580	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
		581
		582	return fd;
		583	}
		584
1466	MODULE = IO::AIO PACKAGE = IO::AIO	585	MODULE = IO::AIO PACKAGE = IO::AIO
1467		586
1468	PROTOTYPES: ENABLE	587	PROTOTYPES: ENABLE
1469		588
1470	BOOT:	589	BOOT:
1471	{	590	{
1472	stash = gv_stashpv ("IO::AIO", 1);	591	static const struct {
1473		592	const char *name;
1474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	593	IV iv;
1475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	594	} *civ, const_iv[] = {
1476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	595	# define const_iv(name, value) { # name, (IV) value },
1477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	596	# define const_eio(name) { # name, (IV) EIO_ ## name },
1478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	597	const_iv (EXDEV , EXDEV)
		598	const_iv (ENOSYS , ENOSYS)
		599	const_iv (O_RDONLY, O_RDONLY)
		600	const_iv (O_WRONLY, O_WRONLY)
		601	const_iv (O_CREAT , O_CREAT)
		602	const_iv (O_TRUNC , O_TRUNC)
1479	#ifdef _WIN32	603	#ifndef _WIN32
1480	X_MUTEX_CHECK (wrklock);	604	const_iv (S_IFIFO , S_IFIFO)
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
1487	X_COND_CHECK (reqwait);
1488	#else
1489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1490	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1491	#endif	605	#endif
		606	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)
		607	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		608	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)
		609	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		610	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		611	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1492		612
		613	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		614	const_eio (SYNC_FILE_RANGE_WRITE)
		615	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		616
		617	const_eio (READDIR_DENTS)
		618	const_eio (READDIR_DIRS_FIRST)
		619	const_eio (READDIR_STAT_ORDER)
		620	const_eio (READDIR_FOUND_UNKNOWN)
		621
		622	const_eio (DT_UNKNOWN)
		623	const_eio (DT_FIFO)
		624	const_eio (DT_CHR)
		625	const_eio (DT_DIR)
		626	const_eio (DT_BLK)
		627	const_eio (DT_REG)
		628	const_eio (DT_LNK)
		629	const_eio (DT_SOCK)
		630	const_eio (DT_WHT)
		631	};
		632
		633	stash = gv_stashpv ("IO::AIO", 1);
		634
		635	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		636	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		637
1493	create_respipe ();	638	create_respipe ();
1494		639
1495	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);	640	if (eio_init (want_poll, done_poll) < 0)
		641	croak ("IO::AIO: unable to initialise eio library");
		642
		643	/* atfork child called in fifo order, so before eio's handler */
		644	X_THREAD_ATFORK (0, 0, atfork_child);
1496	}	645	}
1497		646
1498	void	647	void
1499	max_poll_reqs (int nreqs)	648	max_poll_reqs (int nreqs)
1500	PROTOTYPE: $	649	PROTOTYPE: $
1501	CODE:	650	CODE:
1502	max_poll_reqs = nreqs;	651	eio_set_max_poll_reqs (nreqs);
1503		652
1504	void	653	void
1505	max_poll_time (double nseconds)	654	max_poll_time (double nseconds)
1506	PROTOTYPE: $	655	PROTOTYPE: $
1507	CODE:	656	CODE:
1508	max_poll_time = nseconds * AIO_TICKS;	657	eio_set_max_poll_time (nseconds);
1509		658
1510	void	659	void
1511	min_parallel (int nthreads)	660	min_parallel (int nthreads)
1512	PROTOTYPE: $	661	PROTOTYPE: $
		662	CODE:
		663	eio_set_min_parallel (nthreads);
1513		664
1514	void	665	void
1515	max_parallel (int nthreads)	666	max_parallel (int nthreads)
1516	PROTOTYPE: $	667	PROTOTYPE: $
		668	CODE:
		669	eio_set_max_parallel (nthreads);
1517		670
1518	void	671	void
1519	max_idle (int nthreads)	672	max_idle (int nthreads)
1520	PROTOTYPE: $	673	PROTOTYPE: $
1521	CODE:	674	CODE:
1522	set_max_idle (nthreads);	675	eio_set_max_idle (nthreads);
1523		676
1524	int	677	void
1525	max_outstanding (int maxreqs)	678	max_outstanding (int maxreqs)
1526	PROTOTYPE: $	679	PROTOTYPE: $
1527	CODE:	680	CODE:
1528	RETVAL = max_outstanding;
1529	max_outstanding = maxreqs;	681	max_outstanding = maxreqs;
1530	OUTPUT:
1531	RETVAL
1532		682
1533	void	683	void
1534	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	684	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1535	PROTOTYPE: $$$;$	685	PROTOTYPE: $$$;$
1536	PPCODE:	686	PPCODE:
1537	{	687	{
1538	dREQ;	688	dREQ;
1539		689
1540	req->type = REQ_OPEN;	690	req->type = EIO_OPEN;
1541	req->sv1 = newSVsv (pathname);	691	req->sv1 = newSVsv (pathname);
1542	req->ptr1 = SvPVbyte_nolen (req->sv1);	692	req->ptr1 = SvPVbyte_nolen (req->sv1);
1543	req->int1 = flags;	693	req->int1 = flags;
1544	req->mode = mode;	694	req->int2 = mode;
1545		695
1546	REQ_SEND;	696	REQ_SEND;
1547	}	697	}
1548		698
1549	void	699	void
1550	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	700	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1551	PROTOTYPE: $;$	701	PROTOTYPE: $;$
1552	ALIAS:	702	ALIAS:
1553	aio_fsync = REQ_FSYNC	703	aio_fsync = EIO_FSYNC
1554	aio_fdatasync = REQ_FDATASYNC	704	aio_fdatasync = EIO_FDATASYNC
1555	PPCODE:	705	PPCODE:
1556	{	706	{
		707	int fd = extract_fd (fh, 0);
1557	dREQ;	708	dREQ;
1558		709
1559	req->type = ix;	710	req->type = ix;
1560	req->sv1 = newSVsv (fh);	711	req->sv1 = newSVsv (fh);
1561	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	712	req->int1 = fd;
		713
		714	REQ_SEND (req);
		715	}
		716
		717	void
		718	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		719	PROTOTYPE: $$$$;$
		720	PPCODE:
		721	{
		722	int fd = extract_fd (fh, 0);
		723	dREQ;
		724
		725	req->type = EIO_SYNC_FILE_RANGE;
		726	req->sv1 = newSVsv (fh);
		727	req->int1 = fd;
		728	req->offs = offset;
		729	req->size = nbytes;
		730	req->int2 = flags;
1562		731
1563	REQ_SEND (req);	732	REQ_SEND (req);
1564	}	733	}
1565		734
1566	void	735	void
1567	aio_close (SV *fh, SV *callback=&PL_sv_undef)	736	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1568	PROTOTYPE: $;$	737	PROTOTYPE: $;$
1569	PPCODE:	738	PPCODE:
1570	{	739	{
		740	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		741	int fd = extract_fd (fh, 0);
1571	dREQ;	742	dREQ;
1572		743
		744	if (close_pipe < 0)
		745	{
		746	int pipefd [2];
		747
		748	if (pipe (pipefd) < 0
		749	|| close (pipefd [1]) < 0
		750	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
		751	abort (); /*D*/
		752
		753	close_pipe = pipefd [0];
		754	}
		755
1573	req->type = REQ_CLOSE;	756	req->type = EIO_DUP2;
1574	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	757	req->int1 = close_pipe;
		758	req->sv2 = newSVsv (fh);
		759	req->int2 = fd;
1575		760
1576	REQ_SEND (req);	761	REQ_SEND (req);
1577	}	762	}
1578		763
1579	void	764	void
1580	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	765	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1581	ALIAS:	766	ALIAS:
1582	aio_read = REQ_READ	767	aio_read = EIO_READ
1583	aio_write = REQ_WRITE	768	aio_write = EIO_WRITE
1584	PROTOTYPE: $$$$$;$	769	PROTOTYPE: $$$$$;$
1585	PPCODE:	770	PPCODE:
1586	{	771	{
1587	STRLEN svlen;	772	STRLEN svlen;
		773	int fd = extract_fd (fh, ix == EIO_WRITE);
1588	char *svptr = SvPVbyte (data, svlen);	774	char *svptr = SvPVbyte (data, svlen);
1589	UV len = SvUV (length);	775	UV len = SvUV (length);
1590		776
1591	SvUPGRADE (data, SVt_PV);
1592	SvPOK_on (data);
1593
1594	if (dataoffset < 0)	777	if (dataoffset < 0)
1595	dataoffset += svlen;	778	dataoffset += svlen;
1596		779
1597	if (dataoffset < 0 || dataoffset > svlen)	780	if (dataoffset < 0 || dataoffset > svlen)
1598	croak ("dataoffset outside of data scalar");	781	croak ("dataoffset outside of data scalar");
1599		782
1600	if (ix == REQ_WRITE)	783	if (ix == EIO_WRITE)
1601	{	784	{
1602	/* write: check length and adjust. */	785	/* write: check length and adjust. */
1603	if (!SvOK (length) || len + dataoffset > svlen)	786	if (!SvOK (length) || len + dataoffset > svlen)
1604	len = svlen - dataoffset;	787	len = svlen - dataoffset;
1605	}	788	}
1606	else	789	else
1607	{	790	{
1608	/* read: grow scalar as necessary */	791	/* read: check type and grow scalar as necessary */
		792	SvUPGRADE (data, SVt_PV);
1609	svptr = SvGROW (data, len + dataoffset + 1);	793	svptr = SvGROW (data, len + dataoffset + 1);
1610	}	794	}
1611
1612	if (len < 0)
1613	croak ("length must not be negative");
1614		795
1615	{	796	{
1616	dREQ;	797	dREQ;
1617		798
1618	req->type = ix;	799	req->type = ix;
1619	req->sv1 = newSVsv (fh);	800	req->sv1 = newSVsv (fh);
1620	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	801	req->int1 = fd;
1621	: IoOFP (sv_2io (fh)));
1622	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	802	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1623	req->size = len;	803	req->size = len;
1624	req->sv2 = SvREFCNT_inc (data);	804	req->sv2 = SvREFCNT_inc (data);
1625	req->ptr1 = (char *)svptr + dataoffset;	805	req->ptr2 = (char *)svptr + dataoffset;
1626	req->stroffset = dataoffset;	806	req->stroffset = dataoffset;
1627		807
1628	if (!SvREADONLY (data))	808	if (!SvREADONLY (data))
1629	{	809	{
1630	SvREADONLY_on (data);	810	SvREADONLY_on (data);
…		…
1641	PPCODE:	821	PPCODE:
1642	{	822	{
1643	SV *data;	823	SV *data;
1644	dREQ;	824	dREQ;
1645		825
1646	data = newSV (NAME_MAX);
1647	SvPOK_on (data);
1648
1649	req->type = REQ_READLINK;	826	req->type = EIO_READLINK;
1650	req->sv1 = newSVsv (path);	827	req->sv1 = newSVsv (path);
1651	req->ptr2 = SvPVbyte_nolen (req->sv1);	828	req->ptr1 = SvPVbyte_nolen (req->sv1);
1652	req->sv2 = data;
1653	req->ptr1 = SvPVbyte_nolen (data);
1654		829
1655	REQ_SEND;	830	REQ_SEND;
1656	}	831	}
1657		832
1658	void	833	void
1659	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	834	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1660	PROTOTYPE: $$$$;$	835	PROTOTYPE: $$$$;$
1661	PPCODE:	836	PPCODE:
1662	{	837	{
		838	int ifd = extract_fd (in_fh , 0);
		839	int ofd = extract_fd (out_fh, 0);
1663	dREQ;	840	dREQ;
1664		841
1665	req->type = REQ_SENDFILE;	842	req->type = EIO_SENDFILE;
1666	req->sv1 = newSVsv (out_fh);	843	req->sv1 = newSVsv (out_fh);
1667	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	844	req->int1 = ofd;
1668	req->sv2 = newSVsv (in_fh);	845	req->sv2 = newSVsv (in_fh);
1669	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	846	req->int2 = ifd;
1670	req->offs = SvVAL64 (in_offset);	847	req->offs = in_offset;
1671	req->size = length;	848	req->size = length;
1672		849
1673	REQ_SEND;	850	REQ_SEND;
1674	}	851	}
1675		852
1676	void	853	void
1677	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	854	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1678	PROTOTYPE: $$$;$	855	PROTOTYPE: $$$;$
1679	PPCODE:	856	PPCODE:
1680	{	857	{
		858	int fd = extract_fd (fh, 0);
1681	dREQ;	859	dREQ;
1682		860
1683	req->type = REQ_READAHEAD;	861	req->type = EIO_READAHEAD;
1684	req->sv1 = newSVsv (fh);	862	req->sv1 = newSVsv (fh);
1685	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	863	req->int1 = fd;
1686	req->offs = SvVAL64 (offset);	864	req->offs = offset;
1687	req->size = length;	865	req->size = length;
1688		866
1689	REQ_SEND;	867	REQ_SEND;
1690	}	868	}
1691		869
1692	void	870	void
1693	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	871	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1694	ALIAS:	872	ALIAS:
1695	aio_stat = REQ_STAT	873	aio_stat = EIO_STAT
1696	aio_lstat = REQ_LSTAT	874	aio_lstat = EIO_LSTAT
1697	PPCODE:	875	PPCODE:
1698	{	876	{
1699	dREQ;	877	dREQ;
1700		878
1701	req->ptr2 = malloc (sizeof (Stat_t));
1702	if (!req->ptr2)
1703	{
1704	req_destroy (req);
1705	croak ("out of memory during aio_stat statdata allocation");
1706	}
1707
1708	req->flags |= FLAG_PTR2_FREE;
1709	req->sv1 = newSVsv (fh_or_path);	879	req->sv1 = newSVsv (fh_or_path);
1710		880
1711	if (SvPOK (fh_or_path))	881	if (SvPOK (req->sv1))
1712	{	882	{
1713	req->type = ix;	883	req->type = ix;
1714	req->ptr1 = SvPVbyte_nolen (req->sv1);	884	req->ptr1 = SvPVbyte_nolen (req->sv1);
1715	}	885	}
1716	else	886	else
1717	{	887	{
1718	req->type = REQ_FSTAT;	888	req->type = EIO_FSTAT;
1719	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	889	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1720	}	890	}
1721		891
1722	REQ_SEND;	892	REQ_SEND;
1723	}	893	}
…		…
1730		900
1731	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	901	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1732	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	902	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1733	req->sv1 = newSVsv (fh_or_path);	903	req->sv1 = newSVsv (fh_or_path);
1734		904
1735	if (SvPOK (fh_or_path))	905	if (SvPOK (req->sv1))
1736	{	906	{
1737	req->type = REQ_UTIME;	907	req->type = EIO_UTIME;
1738	req->ptr1 = SvPVbyte_nolen (req->sv1);	908	req->ptr1 = SvPVbyte_nolen (req->sv1);
1739	}	909	}
1740	else	910	else
1741	{	911	{
1742	req->type = REQ_FUTIME;	912	req->type = EIO_FUTIME;
1743	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	913	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1744	}	914	}
1745		915
1746	REQ_SEND;	916	REQ_SEND;
1747	}	917	}
…		…
1753	dREQ;	923	dREQ;
1754		924
1755	req->sv1 = newSVsv (fh_or_path);	925	req->sv1 = newSVsv (fh_or_path);
1756	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	926	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1757		927
1758	if (SvPOK (fh_or_path))	928	if (SvPOK (req->sv1))
1759	{	929	{
1760	req->type = REQ_TRUNCATE;	930	req->type = EIO_TRUNCATE;
1761	req->ptr1 = SvPVbyte_nolen (req->sv1);	931	req->ptr1 = SvPVbyte_nolen (req->sv1);
1762	}	932	}
1763	else	933	else
1764	{	934	{
1765	req->type = REQ_FTRUNCATE;	935	req->type = EIO_FTRUNCATE;
1766	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	936	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1767	}	937	}
1768		938
1769	REQ_SEND;	939	REQ_SEND;
1770	}	940	}
1771		941
1772	void	942	void
1773	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	943	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		944	ALIAS:
		945	aio_chmod = EIO_CHMOD
		946	aio_mkdir = EIO_MKDIR
1774	PPCODE:	947	PPCODE:
1775	{	948	{
1776	dREQ;	949	dREQ;
1777		950
1778	req->mode = mode;	951	req->int2 = mode;
1779	req->sv1 = newSVsv (fh_or_path);	952	req->sv1 = newSVsv (fh_or_path);
1780		953
1781	if (SvPOK (fh_or_path))	954	if (SvPOK (req->sv1))
1782	{	955	{
1783	req->type = REQ_CHMOD;	956	req->type = ix;
1784	req->ptr1 = SvPVbyte_nolen (req->sv1);	957	req->ptr1 = SvPVbyte_nolen (req->sv1);
1785	}	958	}
1786	else	959	else
1787	{	960	{
1788	req->type = REQ_FCHMOD;	961	req->type = EIO_FCHMOD;
1789	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	962	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1790	}	963	}
1791		964
1792	REQ_SEND;	965	REQ_SEND;
1793	}	966	}
…		…
1800		973
1801	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	974	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1802	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	975	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1803	req->sv1 = newSVsv (fh_or_path);	976	req->sv1 = newSVsv (fh_or_path);
1804		977
1805	if (SvPOK (fh_or_path))	978	if (SvPOK (req->sv1))
1806	{	979	{
1807	req->type = REQ_CHOWN;	980	req->type = EIO_CHOWN;
1808	req->ptr1 = SvPVbyte_nolen (req->sv1);	981	req->ptr1 = SvPVbyte_nolen (req->sv1);
1809	}	982	}
1810	else	983	else
1811	{	984	{
1812	req->type = REQ_FCHOWN;	985	req->type = EIO_FCHOWN;
1813	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	986	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1814	}	987	}
1815		988
1816	REQ_SEND;	989	REQ_SEND;
		990	}
		991
		992	void
		993	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		994	PPCODE:
		995	{
		996	dREQ;
		997
		998	req->type = EIO_READDIR;
		999	req->sv1 = newSVsv (pathname);
		1000	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1001	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1002
		1003	if (flags & EIO_READDIR_DENTS)
		1004	req->int1 |= EIO_READDIR_CUSTOM2;
		1005
		1006	REQ_SEND;
1817	}	1007	}
1818		1008
1819	void	1009	void
1820	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1010	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1821	ALIAS:	1011	ALIAS:
1822	aio_unlink = REQ_UNLINK	1012	aio_unlink = EIO_UNLINK
1823	aio_rmdir = REQ_RMDIR	1013	aio_rmdir = EIO_RMDIR
1824	aio_readdir = REQ_READDIR	1014	aio_readdir = EIO_READDIR
1825	PPCODE:	1015	PPCODE:
1826	{	1016	{
1827	dREQ;	1017	dREQ;
1828		1018
1829	req->type = ix;	1019	req->type = ix;
…		…
1832		1022
1833	REQ_SEND;	1023	REQ_SEND;
1834	}	1024	}
1835		1025
1836	void	1026	void
1837	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1838	PPCODE:
1839	{
1840	dREQ;
1841
1842	req->type = REQ_MKDIR;
1843	req->sv1 = newSVsv (pathname);
1844	req->ptr1 = SvPVbyte_nolen (req->sv1);
1845	req->mode = mode;
1846
1847	REQ_SEND;
1848	}
1849
1850	void
1851	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1027	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1852	ALIAS:	1028	ALIAS:
1853	aio_link = REQ_LINK	1029	aio_link = EIO_LINK
1854	aio_symlink = REQ_SYMLINK	1030	aio_symlink = EIO_SYMLINK
1855	aio_rename = REQ_RENAME	1031	aio_rename = EIO_RENAME
1856	PPCODE:	1032	PPCODE:
1857	{	1033	{
1858	dREQ;	1034	dREQ;
1859		1035
1860	req->type = ix;	1036	req->type = ix;
1861	req->sv2 = newSVsv (oldpath);	1037	req->sv1 = newSVsv (oldpath);
		1038	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1039	req->sv2 = newSVsv (newpath);
1862	req->ptr2 = SvPVbyte_nolen (req->sv2);	1040	req->ptr2 = SvPVbyte_nolen (req->sv2);
1863	req->sv1 = newSVsv (newpath);
1864	req->ptr1 = SvPVbyte_nolen (req->sv1);
1865		1041
1866	REQ_SEND;	1042	REQ_SEND;
1867	}	1043	}
1868		1044
1869	void	1045	void
1870	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1046	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1871	PPCODE:	1047	PPCODE:
1872	{	1048	{
1873	dREQ;	1049	dREQ;
1874		1050
1875	req->type = REQ_MKNOD;	1051	req->type = EIO_MKNOD;
1876	req->sv1 = newSVsv (pathname);	1052	req->sv1 = newSVsv (pathname);
1877	req->ptr1 = SvPVbyte_nolen (req->sv1);	1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
1878	req->mode = (mode_t)mode;	1054	req->int2 = (mode_t)mode;
1879	req->offs = dev;	1055	req->offs = dev;
1880		1056
1881	REQ_SEND;	1057	REQ_SEND;
1882	}	1058	}
1883		1059
…		…
1885	aio_busy (double delay, SV *callback=&PL_sv_undef)	1061	aio_busy (double delay, SV *callback=&PL_sv_undef)
1886	PPCODE:	1062	PPCODE:
1887	{	1063	{
1888	dREQ;	1064	dREQ;
1889		1065
1890	req->type = REQ_BUSY;	1066	req->type = EIO_BUSY;
1891	req->nv1 = delay < 0. ? 0. : delay;	1067	req->nv1 = delay < 0. ? 0. : delay;
1892		1068
1893	REQ_SEND;	1069	REQ_SEND;
1894	}	1070	}
1895		1071
…		…
1898	PROTOTYPE: ;$	1074	PROTOTYPE: ;$
1899	PPCODE:	1075	PPCODE:
1900	{	1076	{
1901	dREQ;	1077	dREQ;
1902		1078
1903	req->type = REQ_GROUP;	1079	req->type = EIO_GROUP;
1904		1080
1905	req_send (req);	1081	req_submit (req);
1906	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1082	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1907	}	1083	}
1908		1084
1909	void	1085	void
1910	aio_nop (SV *callback=&PL_sv_undef)	1086	aio_nop (SV *callback=&PL_sv_undef)
1911	ALIAS:	1087	ALIAS:
1912	aio_nop = REQ_NOP	1088	aio_nop = EIO_NOP
1913	aio_sync = REQ_SYNC	1089	aio_sync = EIO_SYNC
1914	PPCODE:	1090	PPCODE:
1915	{	1091	{
1916	dREQ;	1092	dREQ;
1917		1093
1918	req->type = ix;	1094	req->type = ix;
…		…
1922		1098
1923	int	1099	int
1924	aioreq_pri (int pri = 0)	1100	aioreq_pri (int pri = 0)
1925	PROTOTYPE: ;$	1101	PROTOTYPE: ;$
1926	CODE:	1102	CODE:
1927	RETVAL = next_pri - PRI_BIAS;	1103	RETVAL = next_pri;
1928	if (items > 0)	1104	if (items > 0)
1929	{	1105	{
1930	if (pri < PRI_MIN) pri = PRI_MIN;	1106	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1931	if (pri > PRI_MAX) pri = PRI_MAX;	1107	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1932	next_pri = pri + PRI_BIAS;	1108	next_pri = pri;
1933	}	1109	}
1934	OUTPUT:	1110	OUTPUT:
1935	RETVAL	1111	RETVAL
1936		1112
1937	void	1113	void
1938	aioreq_nice (int nice = 0)	1114	aioreq_nice (int nice = 0)
1939	CODE:	1115	CODE:
1940	nice = next_pri - nice;	1116	nice = next_pri - nice;
1941	if (nice < PRI_MIN) nice = PRI_MIN;	1117	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1942	if (nice > PRI_MAX) nice = PRI_MAX;	1118	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1943	next_pri = nice + PRI_BIAS;	1119	next_pri = nice;
1944		1120
1945	void	1121	void
1946	flush ()	1122	flush ()
1947	PROTOTYPE:	1123	PROTOTYPE:
1948	CODE:	1124	CODE:
1949	while (nreqs)	1125	while (eio_nreqs ())
1950	{	1126	{
1951	poll_wait ();	1127	poll_wait ();
1952	poll_cb ();	1128	poll_cb ();
1953	}	1129	}
1954		1130
…		…
1981	poll_wait()	1157	poll_wait()
1982	PROTOTYPE:	1158	PROTOTYPE:
1983	CODE:	1159	CODE:
1984	poll_wait ();	1160	poll_wait ();
1985		1161
1986	void
1987	setsig (int signum = SIGIO)
1988	PROTOTYPE: ;$
1989	CODE:
1990	{
1991	if (block_sig_level)
1992	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1993
1994	X_LOCK (reslock);
1995	main_tid = pthread_self ();
1996	main_sig = signum;
1997	X_UNLOCK (reslock);
1998
1999	if (main_sig && npending)
2000	pthread_kill (main_tid, main_sig);
2001	}
2002
2003	void
2004	aio_block (SV *cb)
2005	PROTOTYPE: &
2006	PPCODE:
2007	{
2008	int count;
2009
2010	block_sig ();
2011	PUSHMARK (SP);
2012	PUTBACK;
2013	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
2014	unblock_sig ();
2015
2016	if (SvTRUE (ERRSV))
2017	croak (0);
2018
2019	XSRETURN (count);
2020	}
2021
2022	int	1162	int
2023	nreqs()	1163	nreqs()
2024	PROTOTYPE:	1164	PROTOTYPE:
2025	CODE:	1165	CODE:
2026	RETVAL = nreqs;	1166	RETVAL = eio_nreqs ();
2027	OUTPUT:	1167	OUTPUT:
2028	RETVAL	1168	RETVAL
2029		1169
2030	int	1170	int
2031	nready()	1171	nready()
2032	PROTOTYPE:	1172	PROTOTYPE:
2033	CODE:	1173	CODE:
2034	RETVAL = get_nready ();	1174	RETVAL = eio_nready ();
2035	OUTPUT:	1175	OUTPUT:
2036	RETVAL	1176	RETVAL
2037		1177
2038	int	1178	int
2039	npending()	1179	npending()
2040	PROTOTYPE:	1180	PROTOTYPE:
2041	CODE:	1181	CODE:
2042	RETVAL = get_npending ();	1182	RETVAL = eio_npending ();
2043	OUTPUT:	1183	OUTPUT:
2044	RETVAL	1184	RETVAL
2045		1185
2046	int	1186	int
2047	nthreads()	1187	nthreads()
2048	PROTOTYPE:	1188	PROTOTYPE:
2049	CODE:	1189	CODE:
2050	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1190	RETVAL = eio_nthreads ();
2051	RETVAL = started;
2052	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2053	OUTPUT:	1191	OUTPUT:
2054	RETVAL	1192	RETVAL
2055		1193
		1194	int
		1195	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1196	PROTOTYPE: $$$$
		1197	CODE:
		1198	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1199	RETVAL = posix_fadvise (fh, offset, length, advice);
		1200	#else
		1201	RETVAL = errno = ENOSYS;
		1202	#endif
		1203	OUTPUT:
		1204	RETVAL
		1205
		1206	ssize_t
		1207	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1208	PROTOTYPE: $$$$
		1209	CODE:
		1210	eio_sendfile_sync (ofh, ifh, offset, count);
		1211
		1212	void _on_next_submit (SV *cb)
		1213	CODE:
		1214	SvREFCNT_dec (on_next_submit);
		1215	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1216
2056	PROTOTYPES: DISABLE	1217	PROTOTYPES: DISABLE
2057		1218
2058	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1219	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2059		1220
2060	void	1221	void
2061	cancel (aio_req_ornot req)	1222	cancel (aio_req_ornot req)
2062	CODE:	1223	CODE:
2063	req_cancel (req);	1224	eio_cancel (req);
2064		1225
2065	void	1226	void
2066	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1227	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2067	CODE:	1228	PPCODE:
		1229	{
		1230	if (GIMME_V != G_VOID)
		1231	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1232
		1233	if (items > 1)
		1234	{
		1235	SV *cb_cv = get_cb (callback);
		1236
2068	SvREFCNT_dec (req->callback);	1237	SvREFCNT_dec (req->callback);
2069	req->callback = newSVsv (callback);	1238	req->callback = SvREFCNT_inc (cb_cv);
		1239	}
		1240	}
2070		1241
2071	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1242	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2072		1243
2073	void	1244	void
2074	add (aio_req grp, ...)	1245	add (aio_req grp, ...)
2075	PPCODE:	1246	PPCODE:
2076	{	1247	{
2077	int i;	1248	int i;
2078	aio_req req;
2079
2080	if (main_sig && !block_sig_level)
2081	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2082		1249
2083	if (grp->int1 == 2)	1250	if (grp->int1 == 2)
2084	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1251	croak ("cannot add requests to IO::AIO::GRP after the group finished");
2085		1252
2086	for (i = 1; i < items; ++i )	1253	for (i = 1; i < items; ++i )
2087	{	1254	{
		1255	aio_req req;
		1256
2088	if (GIMME_V != G_VOID)	1257	if (GIMME_V != G_VOID)
2089	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1258	XPUSHs (sv_2mortal (newSVsv (ST (i))));
2090		1259
2091	req = SvAIO_REQ (ST (i));	1260	req = SvAIO_REQ (ST (i));
2092		1261
2093	if (req)	1262	if (req)
2094	{	1263	eio_grp_add (grp, req);
2095	++grp->size;
2096	req->grp = grp;
2097
2098	req->grp_prev = 0;
2099	req->grp_next = grp->grp_first;
2100
2101	if (grp->grp_first)
2102	grp->grp_first->grp_prev = req;
2103
2104	grp->grp_first = req;
2105	}
2106	}	1264	}
2107	}	1265	}
2108		1266
2109	void	1267	void
2110	cancel_subs (aio_req_ornot req)	1268	cancel_subs (aio_req_ornot req)
…		…
2119	AV *av;	1277	AV *av;
2120		1278
2121	grp->errorno = errno;	1279	grp->errorno = errno;
2122		1280
2123	av = newAV ();	1281	av = newAV ();
		1282	av_extend (av, items - 1);
2124		1283
2125	for (i = 1; i < items; ++i )	1284	for (i = 1; i < items; ++i )
2126	av_push (av, newSVsv (ST (i)));	1285	av_push (av, newSVsv (ST (i)));
2127		1286
2128	SvREFCNT_dec (grp->sv1);	1287	SvREFCNT_dec (grp->sv1);
…		…
2135	grp->errorno = errorno;	1294	grp->errorno = errorno;
2136		1295
2137	void	1296	void
2138	limit (aio_req grp, int limit)	1297	limit (aio_req grp, int limit)
2139	CODE:	1298	CODE:
2140	grp->int2 = limit;	1299	eio_grp_limit (grp, limit);
2141	aio_grp_feed (grp);
2142		1300
2143	void	1301	void
2144	feed (aio_req grp, SV *callback=&PL_sv_undef)	1302	feed (aio_req grp, SV *callback=&PL_sv_undef)
2145	CODE:	1303	CODE:
2146	{	1304	{
2147	SvREFCNT_dec (grp->sv2);	1305	SvREFCNT_dec (grp->sv2);
2148	grp->sv2 = newSVsv (callback);	1306	grp->sv2 = newSVsv (callback);
		1307	grp->feed = aio_grp_feed;
2149		1308
2150	if (grp->int2 <= 0)	1309	if (grp->int2 <= 0)
2151	grp->int2 = 2;	1310	grp->int2 = 2;
2152		1311
2153	aio_grp_feed (grp);	1312	eio_grp_limit (grp, grp->int2);
2154	}	1313	}
2155		1314

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