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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.85 by root, Sat Oct 28 23:32:29 2006 UTC vs.
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include "autoconf/config.h"
18
19	#include <pthread.h>
20
21	#include <stddef.h>	9	#include <stddef.h>
		10	#include <stdlib.h>
22	#include <errno.h>	11	#include <errno.h>
23	#include <sys/time.h>
24	#include <sys/select.h>
25	#include <sys/types.h>	12	#include <sys/types.h>
26	#include <sys/stat.h>	13	#include <sys/stat.h>
27	#include <limits.h>	14	#include <limits.h>
28	#include <unistd.h>
29	#include <fcntl.h>	15	#include <fcntl.h>
30	#include <signal.h>
31	#include <sched.h>	16	#include <sched.h>
		17
		18	#ifdef _WIN32
		19
		20	# define SIGIO 0
		21	typedef Direntry_t X_DIRENT;
		22	#undef malloc
		23	#undef free
		24
		25	// perl overrides all those nice win32 functions
		26	# undef open
		27	# undef read
		28	# undef write
		29	# undef stat
		30	# undef fstat
		31	# define lstat stat
		32	# undef truncate
		33	# undef ftruncate
		34	# undef open
		35	# undef close
		36	# undef unlink
		37	# undef rmdir
		38	# undef rename
		39	# undef lseek
		40
		41	# define chown(a,b,c) (errno = ENOSYS, -1)
		42	# define fchown(a,b,c) (errno = ENOSYS, -1)
		43	# define fchmod(a,b) (errno = ENOSYS, -1)
		44	# define symlink(a,b) (errno = ENOSYS, -1)
		45	# define readlink(a,b,c) (errno = ENOSYS, -1)
		46	# define mknod(a,b,c) (errno = ENOSYS, -1)
		47	# define truncate(a,b) (errno = ENOSYS, -1)
		48	# define ftruncate(fd,o) chsize ((fd), (o))
		49	# define fsync(fd) _commit (fd)
		50	# define opendir(fd) (errno = ENOSYS, 0)
		51	# define readdir(fd) (errno = ENOSYS, -1)
		52	# define closedir(fd) (errno = ENOSYS, -1)
		53	# define mkdir(a,b) mkdir (a)
		54
		55	#else
		56
		57	# include "autoconf/config.h"
		58	# include <sys/time.h>
		59	# include <sys/select.h>
		60	# include <unistd.h>
		61	# include <utime.h>
		62	# include <signal.h>
		63	typedef struct dirent X_DIRENT;
		64
		65	#endif
32		66
33	#if HAVE_SENDFILE	67	#if HAVE_SENDFILE
34	# if __linux	68	# if __linux
35	# include <sys/sendfile.h>	69	# include <sys/sendfile.h>
36	# elif __freebsd	70	# elif __freebsd
…		…
51	/* used for struct dirent, AIX doesn't provide it */	85	/* used for struct dirent, AIX doesn't provide it */
52	#ifndef NAME_MAX	86	#ifndef NAME_MAX
53	# define NAME_MAX 4096	87	# define NAME_MAX 4096
54	#endif	88	#endif
55		89
56	#ifndef PTHREAD_STACK_MIN
57	/* care for broken platforms, e.g. windows */
58	# define PTHREAD_STACK_MIN 16384
59	#endif
60
61	#if __ia64
62	# define STACKSIZE 65536
63	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64	# define STACKSIZE PTHREAD_STACK_MIN
65	#else
66	# define STACKSIZE 16384
67	#endif
68
69	/* wether word reads are potentially non-atomic.
70	* this is conservatice, likely most arches this runs
71	* on have atomic word read/writes.
72	*/
73	#ifndef WORDACCESS_UNSAFE
74	# if __i386 || __x86_64
75	# define WORDACCESS_UNSAFE 0
76	# else
77	# define WORDACCESS_UNSAFE 1
78	# endif
79	#endif
80
81	/* buffer size for various temporary buffers */	90	/* buffer size for various temporary buffers */
82	#define AIO_BUFSIZE 65536	91	#define AIO_BUFSIZE 65536
83		92
		93	/* use NV for 32 bit perls as it allows larger offsets */
		94	#if IVSIZE >= 8
		95	# define SvVAL64 SvIV
		96	#else
		97	# define SvVAL64 SvNV
		98	#endif
		99
84	#define dBUF \	100	#define dBUF \
85	char *aio_buf; \	101	char *aio_buf; \
86	LOCK (wrklock); \	102	X_LOCK (wrklock); \
87	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	103	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88	UNLOCK (wrklock); \	104	X_UNLOCK (wrklock); \
89	if (!aio_buf) \	105	if (!aio_buf) \
90	return -1;	106	return -1;
		107
		108	typedef SV SV8; /* byte-sv, used for argument-checking */
91		109
92	enum {	110	enum {
93	REQ_QUIT,	111	REQ_QUIT,
94	REQ_OPEN, REQ_CLOSE,	112	REQ_OPEN, REQ_CLOSE,
95	REQ_READ, REQ_WRITE, REQ_READAHEAD,	113	REQ_READ, REQ_WRITE,
96	REQ_SENDFILE,	114	REQ_READAHEAD, REQ_SENDFILE,
97	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	115	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		116	REQ_TRUNCATE, REQ_FTRUNCATE,
		117	REQ_UTIME, REQ_FUTIME,
		118	REQ_CHMOD, REQ_FCHMOD,
		119	REQ_CHOWN, REQ_FCHOWN,
98	REQ_FSYNC, REQ_FDATASYNC,	120	REQ_FSYNC, REQ_FDATASYNC,
99	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	121	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100	REQ_MKNOD, REQ_READDIR,	122	REQ_MKNOD, REQ_READDIR,
101	REQ_LINK, REQ_SYMLINK,	123	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102	REQ_GROUP, REQ_NOP,	124	REQ_GROUP, REQ_NOP,
103	REQ_BUSY,	125	REQ_BUSY,
104	};	126	};
105		127
106	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
108		130
109	typedef struct aio_cb	131	typedef struct aio_cb
110	{	132	{
111	struct aio_cb *volatile next;	133	struct aio_cb *volatile next;
112		134
113	SV *data, *callback;	135	SV *callback;
114	SV *fh, *fh2;	136	SV *sv1, *sv2;
115	void *dataptr, *data2ptr;	137	void *ptr1, *ptr2;
116	Stat_t *statdata;
117	off_t offset;	138	off_t offs;
118	size_t length;	139	size_t size;
119	ssize_t result;	140	ssize_t result;
		141	double nv1, nv2;
120		142
121	STRLEN dataoffset;	143	STRLEN stroffset;
122	int type;	144	int type;
123	int fd, fd2;	145	int int1, int2, int3;
124	int errorno;	146	int errorno;
125	mode_t mode; /* open */	147	mode_t mode; /* open */
126		148
127	unsigned char flags;	149	unsigned char flags;
128	unsigned char pri;	150	unsigned char pri;
…		…
130	SV *self; /* the perl counterpart of this request, if any */	152	SV *self; /* the perl counterpart of this request, if any */
131	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	153	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132	} aio_cb;	154	} aio_cb;
133		155
134	enum {	156	enum {
135	FLAG_CANCELLED = 0x01,	157	FLAG_CANCELLED = 0x01, /* request was cancelled */
		158	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		159	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
136	};	160	};
137		161
138	typedef aio_cb *aio_req;	162	typedef aio_cb *aio_req;
139	typedef aio_cb *aio_req_ornot;	163	typedef aio_cb *aio_req_ornot;
140		164
…		…
157	{	181	{
158	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS	182	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
159	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	183	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
160	}	184	}
161		185
		186	static thread_t main_tid;
		187	static int main_sig;
		188	static int block_sig_level;
		189
		190	void block_sig ()
		191	{
		192	sigset_t ss;
		193
		194	if (block_sig_level++)
		195	return;
		196
		197	if (!main_sig)
		198	return;
		199
		200	sigemptyset (&ss);
		201	sigaddset (&ss, main_sig);
		202	pthread_sigmask (SIG_BLOCK, &ss, 0);
		203	}
		204
		205	void unblock_sig ()
		206	{
		207	sigset_t ss;
		208
		209	if (--block_sig_level)
		210	return;
		211
		212	if (!main_sig)
		213	return;
		214
		215	sigemptyset (&ss);
		216	sigaddset (&ss, main_sig);
		217	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		218	}
		219
162	static int next_pri = DEFAULT_PRI + PRI_BIAS;	220	static int next_pri = DEFAULT_PRI + PRI_BIAS;
163		221
164	static unsigned int started, idle, wanted;	222	static unsigned int started, idle, wanted;
165		223
166	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
167	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
168	#else
169	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
170	#endif
171
172	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
173	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
174
175	/* worker threads management */	224	/* worker threads management */
176	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	225	static mutex_t wrklock = X_MUTEX_INIT;
177		226
178	typedef struct worker {	227	typedef struct worker {
179	/* locked by wrklock */	228	/* locked by wrklock */
180	struct worker *prev, *next;	229	struct worker *prev, *next;
181		230
182	pthread_t tid;	231	thread_t tid;
183		232
184	/* locked by reslock, reqlock or wrklock */	233	/* locked by reslock, reqlock or wrklock */
185	aio_req req; /* currently processed request */	234	aio_req req; /* currently processed request */
186	void *dbuf;	235	void *dbuf;
187	DIR *dirp;	236	DIR *dirp;
…		…
215	static volatile unsigned int nreqs, nready, npending;	264	static volatile unsigned int nreqs, nready, npending;
216	static volatile unsigned int max_idle = 4;	265	static volatile unsigned int max_idle = 4;
217	static volatile unsigned int max_outstanding = 0xffffffff;	266	static volatile unsigned int max_outstanding = 0xffffffff;
218	static int respipe [2];	267	static int respipe [2];
219		268
220	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	269	static mutex_t reslock = X_MUTEX_INIT;
221	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	270	static mutex_t reqlock = X_MUTEX_INIT;
222	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	271	static cond_t reqwait = X_COND_INIT;
223		272
224	#if WORDACCESS_UNSAFE	273	#if WORDACCESS_UNSAFE
225		274
226	static unsigned int get_nready ()	275	static unsigned int get_nready ()
227	{	276	{
228	unsigned int retval;	277	unsigned int retval;
229		278
230	LOCK (reqlock);	279	X_LOCK (reqlock);
231	retval = nready;	280	retval = nready;
232	UNLOCK (reqlock);	281	X_UNLOCK (reqlock);
233		282
234	return retval;	283	return retval;
235	}	284	}
236		285
237	static unsigned int get_npending ()	286	static unsigned int get_npending ()
238	{	287	{
239	unsigned int retval;	288	unsigned int retval;
240		289
241	LOCK (reslock);	290	X_LOCK (reslock);
242	retval = npending;	291	retval = npending;
243	UNLOCK (reslock);	292	X_UNLOCK (reslock);
244		293
245	return retval;	294	return retval;
246	}	295	}
247		296
248	static unsigned int get_nthreads ()	297	static unsigned int get_nthreads ()
249	{	298	{
250	unsigned int retval;	299	unsigned int retval;
251		300
252	LOCK (wrklock);	301	X_LOCK (wrklock);
253	retval = started;	302	retval = started;
254	UNLOCK (wrklock);	303	X_UNLOCK (wrklock);
255		304
256	return retval;	305	return retval;
257	}	306	}
258		307
259	#else	308	#else
…		…
317		366
318	abort ();	367	abort ();
319	}	368	}
320		369
321	static int poll_cb ();	370	static int poll_cb ();
322	static void req_invoke (aio_req req);	371	static int req_invoke (aio_req req);
323	static void req_free (aio_req req);	372	static void req_destroy (aio_req req);
324	static void req_cancel (aio_req req);	373	static void req_cancel (aio_req req);
325		374
326	/* must be called at most once */	375	/* must be called at most once */
327	static SV *req_sv (aio_req req, const char *klass)	376	static SV *req_sv (aio_req req, const char *klass)
328	{	377	{
…		…
347	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
348	}	397	}
349		398
350	static void aio_grp_feed (aio_req grp)	399	static void aio_grp_feed (aio_req grp)
351	{	400	{
		401	block_sig ();
		402
352	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	403	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
353	{	404	{
354	int old_len = grp->length;	405	int old_len = grp->size;
355		406
356	if (grp->fh2 && SvOK (grp->fh2))	407	if (grp->sv2 && SvOK (grp->sv2))
357	{	408	{
358	dSP;	409	dSP;
359		410
360	ENTER;	411	ENTER;
361	SAVETMPS;	412	SAVETMPS;
362	PUSHMARK (SP);	413	PUSHMARK (SP);
363	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	414	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
364	PUTBACK;	415	PUTBACK;
365	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	416	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
366	SPAGAIN;	417	SPAGAIN;
367	FREETMPS;	418	FREETMPS;
368	LEAVE;	419	LEAVE;
369	}	420	}
370		421
371	/* stop if no progress has been made */	422	/* stop if no progress has been made */
372	if (old_len == grp->length)	423	if (old_len == grp->size)
373	{	424	{
374	SvREFCNT_dec (grp->fh2);	425	SvREFCNT_dec (grp->sv2);
375	grp->fh2 = 0;	426	grp->sv2 = 0;
376	break;	427	break;
377	}	428	}
378	}	429	}
		430
		431	unblock_sig ();
379	}	432	}
380		433
381	static void aio_grp_dec (aio_req grp)	434	static void aio_grp_dec (aio_req grp)
382	{	435	{
383	--grp->length;	436	--grp->size;
384		437
385	/* call feeder, if applicable */	438	/* call feeder, if applicable */
386	aio_grp_feed (grp);	439	aio_grp_feed (grp);
387		440
388	/* finish, if done */	441	/* finish, if done */
389	if (!grp->length && grp->fd)	442	if (!grp->size && grp->int1)
390	{	443	{
		444	block_sig ();
		445
391	req_invoke (grp);	446	if (!req_invoke (grp))
		447	{
		448	req_destroy (grp);
		449	unblock_sig ();
		450	croak (0);
		451	}
		452
392	req_free (grp);	453	req_destroy (grp);
		454	unblock_sig ();
393	}	455	}
394	}	456	}
395		457
396	static void req_invoke (aio_req req)	458	static int req_invoke (aio_req req)
397	{	459	{
398	dSP;	460	dSP;
		461
		462	if (req->flags & FLAG_SV2_RO_OFF)
		463	SvREADONLY_off (req->sv2);
399		464
400	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	465	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
401	{	466	{
402	ENTER;	467	ENTER;
403	SAVETMPS;	468	SAVETMPS;
…		…
411	SV *rv = &PL_sv_undef;	476	SV *rv = &PL_sv_undef;
412		477
413	if (req->result >= 0)	478	if (req->result >= 0)
414	{	479	{
415	int i;	480	int i;
416	char *buf = req->data2ptr;	481	char *buf = req->ptr2;
417	AV *av = newAV ();	482	AV *av = newAV ();
418		483
419	av_extend (av, req->result - 1);	484	av_extend (av, req->result - 1);
420		485
421	for (i = 0; i < req->result; ++i)	486	for (i = 0; i < req->result; ++i)
…		…
441	PUSHs (sv_2mortal (newSViv (req->result)));	506	PUSHs (sv_2mortal (newSViv (req->result)));
442	PUTBACK;	507	PUTBACK;
443	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	508	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
444	SPAGAIN;	509	SPAGAIN;
445		510
446	fh = SvREFCNT_inc (POPs);	511	fh = POPs;
447
448	PUSHMARK (SP);	512	PUSHMARK (SP);
449	XPUSHs (sv_2mortal (fh));	513	XPUSHs (fh);
450	}	514	}
451	break;	515	break;
452		516
453	case REQ_GROUP:	517	case REQ_GROUP:
454	req->fd = 2; /* mark group as finished */	518	req->int1 = 2; /* mark group as finished */
455		519
456	if (req->data)	520	if (req->sv1)
457	{	521	{
458	int i;	522	int i;
459	AV *av = (AV *)req->data;	523	AV *av = (AV *)req->sv1;
460		524
461	EXTEND (SP, AvFILL (av) + 1);	525	EXTEND (SP, AvFILL (av) + 1);
462	for (i = 0; i <= AvFILL (av); ++i)	526	for (i = 0; i <= AvFILL (av); ++i)
463	PUSHs (*av_fetch (av, i, 0));	527	PUSHs (*av_fetch (av, i, 0));
464	}	528	}
…		…
466		530
467	case REQ_NOP:	531	case REQ_NOP:
468	case REQ_BUSY:	532	case REQ_BUSY:
469	break;	533	break;
470		534
		535	case REQ_READLINK:
		536	if (req->result > 0)
		537	{
		538	SvCUR_set (req->sv2, req->result);
		539	*SvEND (req->sv2) = 0;
		540	PUSHs (req->sv2);
		541	}
		542	break;
		543
		544	case REQ_STAT:
		545	case REQ_LSTAT:
		546	case REQ_FSTAT:
		547	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		548	PL_laststatval = req->result;
		549	PL_statcache = *(Stat_t *)(req->ptr2);
		550	PUSHs (sv_2mortal (newSViv (req->result)));
		551	break;
		552
		553	case REQ_READ:
		554	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		555	*SvEND (req->sv2) = 0;
		556	PUSHs (sv_2mortal (newSViv (req->result)));
		557	break;
		558
471	default:	559	default:
472	PUSHs (sv_2mortal (newSViv (req->result)));	560	PUSHs (sv_2mortal (newSViv (req->result)));
473	break;	561	break;
474	}	562	}
475		563
…		…
495	grp->grp_first = req->grp_next;	583	grp->grp_first = req->grp_next;
496		584
497	aio_grp_dec (grp);	585	aio_grp_dec (grp);
498	}	586	}
499		587
500	if (SvTRUE (ERRSV))	588	return !SvTRUE (ERRSV);
501	{
502	req_free (req);
503	croak (0);
504	}
505	}	589	}
506		590
507	static void req_free (aio_req req)	591	static void req_destroy (aio_req req)
508	{	592	{
509	if (req->self)	593	if (req->self)
510	{	594	{
511	sv_unmagic (req->self, PERL_MAGIC_ext);	595	sv_unmagic (req->self, PERL_MAGIC_ext);
512	SvREFCNT_dec (req->self);	596	SvREFCNT_dec (req->self);
513	}	597	}
514		598
515	SvREFCNT_dec (req->data);
516	SvREFCNT_dec (req->fh);	599	SvREFCNT_dec (req->sv1);
517	SvREFCNT_dec (req->fh2);	600	SvREFCNT_dec (req->sv2);
518	SvREFCNT_dec (req->callback);	601	SvREFCNT_dec (req->callback);
519	Safefree (req->statdata);
520		602
521	if (req->type == REQ_READDIR)	603	if (req->flags & FLAG_PTR2_FREE)
522	free (req->data2ptr);	604	free (req->ptr2);
523		605
524	Safefree (req);	606	Safefree (req);
525	}	607	}
526		608
527	static void req_cancel_subs (aio_req grp)	609	static void req_cancel_subs (aio_req grp)
…		…
529	aio_req sub;	611	aio_req sub;
530		612
531	if (grp->type != REQ_GROUP)	613	if (grp->type != REQ_GROUP)
532	return;	614	return;
533		615
534	SvREFCNT_dec (grp->fh2);	616	SvREFCNT_dec (grp->sv2);
535	grp->fh2 = 0;	617	grp->sv2 = 0;
536		618
537	for (sub = grp->grp_first; sub; sub = sub->grp_next)	619	for (sub = grp->grp_first; sub; sub = sub->grp_next)
538	req_cancel (sub);	620	req_cancel (sub);
539	}	621	}
540		622
…		…
543	req->flags |= FLAG_CANCELLED;	625	req->flags |= FLAG_CANCELLED;
544		626
545	req_cancel_subs (req);	627	req_cancel_subs (req);
546	}	628	}
547		629
548	static void *aio_proc(void *arg);	630	X_THREAD_PROC (aio_proc);
549		631
550	static void start_thread (void)	632	static void start_thread (void)
551	{	633	{
552	sigset_t fullsigset, oldsigset;
553	pthread_attr_t attr;
554
555	worker *wrk = calloc (1, sizeof (worker));	634	worker *wrk = calloc (1, sizeof (worker));
556		635
557	if (!wrk)	636	if (!wrk)
558	croak ("unable to allocate worker thread data");	637	croak ("unable to allocate worker thread data");
559		638
560	pthread_attr_init (&attr);
561	pthread_attr_setstacksize (&attr, STACKSIZE);
562	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
563	#ifdef PTHREAD_SCOPE_PROCESS
564	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
565	#endif
566
567	sigfillset (&fullsigset);
568
569	LOCK (wrklock);	639	X_LOCK (wrklock);
570	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
571		640
572	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	641	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
573	{	642	{
574	wrk->prev = &wrk_first;	643	wrk->prev = &wrk_first;
575	wrk->next = wrk_first.next;	644	wrk->next = wrk_first.next;
576	wrk_first.next->prev = wrk;	645	wrk_first.next->prev = wrk;
577	wrk_first.next = wrk;	646	wrk_first.next = wrk;
578	++started;	647	++started;
579	}	648	}
580	else	649	else
581	free (wrk);	650	free (wrk);
582		651
583	sigprocmask (SIG_SETMASK, &oldsigset, 0);
584	UNLOCK (wrklock);	652	X_UNLOCK (wrklock);
585	}	653	}
586		654
587	static void maybe_start_thread ()	655	static void maybe_start_thread ()
588	{	656	{
589	if (get_nthreads () >= wanted)	657	if (get_nthreads () >= wanted)
…		…
596	start_thread ();	664	start_thread ();
597	}	665	}
598		666
599	static void req_send (aio_req req)	667	static void req_send (aio_req req)
600	{	668	{
		669	block_sig ();
		670
601	++nreqs;	671	++nreqs;
602		672
603	LOCK (reqlock);	673	X_LOCK (reqlock);
604	++nready;	674	++nready;
605	reqq_push (&req_queue, req);	675	reqq_push (&req_queue, req);
606	pthread_cond_signal (&reqwait);	676	X_COND_SIGNAL (reqwait);
607	UNLOCK (reqlock);	677	X_UNLOCK (reqlock);
		678
		679	unblock_sig ();
608		680
609	maybe_start_thread ();	681	maybe_start_thread ();
610	}	682	}
611		683
612	static void end_thread (void)	684	static void end_thread (void)
…		…
616	Newz (0, req, 1, aio_cb);	688	Newz (0, req, 1, aio_cb);
617		689
618	req->type = REQ_QUIT;	690	req->type = REQ_QUIT;
619	req->pri = PRI_MAX + PRI_BIAS;	691	req->pri = PRI_MAX + PRI_BIAS;
620		692
621	LOCK (reqlock);	693	X_LOCK (reqlock);
622	reqq_push (&req_queue, req);	694	reqq_push (&req_queue, req);
623	pthread_cond_signal (&reqwait);	695	X_COND_SIGNAL (reqwait);
624	UNLOCK (reqlock);	696	X_UNLOCK (reqlock);
625		697
626	LOCK (wrklock);	698	X_LOCK (wrklock);
627	--started;	699	--started;
628	UNLOCK (wrklock);	700	X_UNLOCK (wrklock);
629	}	701	}
630		702
631	static void set_max_idle (int nthreads)	703	static void set_max_idle (int nthreads)
632	{	704	{
633	if (WORDACCESS_UNSAFE) LOCK (reqlock);	705	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
634	max_idle = nthreads <= 0 ? 1 : nthreads;	706	max_idle = nthreads <= 0 ? 1 : nthreads;
635	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	707	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
636	}	708	}
637		709
638	static void min_parallel (int nthreads)	710	static void min_parallel (int nthreads)
639	{	711	{
640	if (wanted < nthreads)	712	if (wanted < nthreads)
…		…
655	fd_set rfd;	727	fd_set rfd;
656		728
657	while (nreqs)	729	while (nreqs)
658	{	730	{
659	int size;	731	int size;
660	if (WORDACCESS_UNSAFE) LOCK (reslock);	732	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
661	size = res_queue.size;	733	size = res_queue.size;
662	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	734	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
663		735
664	if (size)	736	if (size)
665	return;	737	return;
666		738
667	maybe_start_thread ();	739	maybe_start_thread ();
…		…
683	aio_req req;	755	aio_req req;
684		756
685	if (max_poll_time)	757	if (max_poll_time)
686	gettimeofday (&tv_start, 0);	758	gettimeofday (&tv_start, 0);
687		759
		760	block_sig ();
		761
688	for (;;)	762	for (;;)
689	{	763	{
690	for (;;)	764	for (;;)
691	{	765	{
692	maybe_start_thread ();	766	maybe_start_thread ();
693		767
694	LOCK (reslock);	768	X_LOCK (reslock);
695	req = reqq_shift (&res_queue);	769	req = reqq_shift (&res_queue);
696		770
697	if (req)	771	if (req)
698	{	772	{
699	--npending;	773	--npending;
700		774
701	if (!res_queue.size)	775	if (!res_queue.size)
702	{	776	{
703	/* read any signals sent by the worker threads */	777	/* read any signals sent by the worker threads */
704	char buf [32];	778	char buf [4];
705	while (read (respipe [0], buf, 32) == 32)	779	while (read (respipe [0], buf, 4) == 4)
706	;	780	;
707	}	781	}
708	}	782	}
709		783
710	UNLOCK (reslock);	784	X_UNLOCK (reslock);
711		785
712	if (!req)	786	if (!req)
713	break;	787	break;
714		788
715	--nreqs;	789	--nreqs;
716		790
717	if (req->type == REQ_GROUP && req->length)	791	if (req->type == REQ_GROUP && req->size)
718	{	792	{
719	req->fd = 1; /* mark request as delayed */	793	req->int1 = 1; /* mark request as delayed */
720	continue;	794	continue;
721	}	795	}
722	else	796	else
723	{	797	{
724	if (req->type == REQ_READ)	798	if (!req_invoke (req))
725	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
726
727	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
728	SvREADONLY_off (req->data);
729
730	if (req->statdata)
731	{	799	{
732	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	800	req_destroy (req);
733	PL_laststatval = req->result;	801	unblock_sig ();
734	PL_statcache = *(req->statdata);	802	croak (0);
735	}	803	}
736
737	req_invoke (req);
738		804
739	count++;	805	count++;
740	}	806	}
741		807
742	req_free (req);	808	req_destroy (req);
743		809
744	if (maxreqs && !--maxreqs)	810	if (maxreqs && !--maxreqs)
745	break;	811	break;
746		812
747	if (max_poll_time)	813	if (max_poll_time)
…		…
759	poll_wait ();	825	poll_wait ();
760		826
761	++maxreqs;	827	++maxreqs;
762	}	828	}
763		829
		830	unblock_sig ();
764	return count;	831	return count;
765	}
766
767	static void create_pipe ()
768	{
769	if (pipe (respipe))
770	croak ("unable to initialize result pipe");
771
772	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
773	croak ("cannot set result pipe to nonblocking mode");
774
775	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
776	croak ("cannot set result pipe to nonblocking mode");
777	}	832	}
778		833
779	/*****************************************************************************/	834	/*****************************************************************************/
780	/* work around various missing functions */	835	/* work around various missing functions */
781		836
…		…
786	/*	841	/*
787	* make our pread/pwrite safe against themselves, but not against	842	* make our pread/pwrite safe against themselves, but not against
788	* normal read/write by using a mutex. slows down execution a lot,	843	* normal read/write by using a mutex. slows down execution a lot,
789	* but that's your problem, not mine.	844	* but that's your problem, not mine.
790	*/	845	*/
791	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	846	static mutex_t preadwritelock = X_MUTEX_INIT;
792		847
793	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	848	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
794	{	849	{
795	ssize_t res;	850	ssize_t res;
796	off_t ooffset;	851	off_t ooffset;
797		852
798	LOCK (preadwritelock);	853	X_LOCK (preadwritelock);
799	ooffset = lseek (fd, 0, SEEK_CUR);	854	ooffset = lseek (fd, 0, SEEK_CUR);
800	lseek (fd, offset, SEEK_SET);	855	lseek (fd, offset, SEEK_SET);
801	res = read (fd, buf, count);	856	res = read (fd, buf, count);
802	lseek (fd, ooffset, SEEK_SET);	857	lseek (fd, ooffset, SEEK_SET);
803	UNLOCK (preadwritelock);	858	X_UNLOCK (preadwritelock);
804		859
805	return res;	860	return res;
806	}	861	}
807		862
808	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	863	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
809	{	864	{
810	ssize_t res;	865	ssize_t res;
811	off_t ooffset;	866	off_t ooffset;
812		867
813	LOCK (preadwritelock);	868	X_LOCK (preadwritelock);
814	ooffset = lseek (fd, 0, SEEK_CUR);	869	ooffset = lseek (fd, 0, SEEK_CUR);
815	lseek (fd, offset, SEEK_SET);	870	lseek (fd, offset, SEEK_SET);
816	res = write (fd, buf, count);	871	res = write (fd, buf, count);
817	lseek (fd, offset, SEEK_SET);	872	lseek (fd, offset, SEEK_SET);
818	UNLOCK (preadwritelock);	873	X_UNLOCK (preadwritelock);
819		874
820	return res;	875	return res;
821	}	876	}
		877	#endif
		878
		879	#ifndef HAVE_FUTIMES
		880
		881	# define utimes(path,times) aio_utimes (path, times)
		882	# define futimes(fd,times) aio_futimes (fd, times)
		883
		884	int aio_utimes (const char *filename, const struct timeval times[2])
		885	{
		886	if (times)
		887	{
		888	struct utimbuf buf;
		889
		890	buf.actime = times[0].tv_sec;
		891	buf.modtime = times[1].tv_sec;
		892
		893	return utime (filename, &buf);
		894	}
		895	else
		896	return utime (filename, 0);
		897	}
		898
		899	int aio_futimes (int fd, const struct timeval tv[2])
		900	{
		901	errno = ENOSYS;
		902	return -1;
		903	}
		904
822	#endif	905	#endif
823		906
824	#if !HAVE_FDATASYNC	907	#if !HAVE_FDATASYNC
825	# define fdatasync fsync	908	# define fdatasync fsync
826	#endif	909	#endif
…		…
828	#if !HAVE_READAHEAD	911	#if !HAVE_READAHEAD
829	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	912	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
830		913
831	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	914	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
832	{	915	{
		916	size_t todo = count;
833	dBUF;	917	dBUF;
834		918
835	while (count > 0)	919	while (todo > 0)
836	{	920	{
837	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	921	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
838		922
839	pread (fd, aio_buf, len, offset);	923	pread (fd, aio_buf, len, offset);
840	offset += len;	924	offset += len;
841	count -= len;	925	todo -= len;
842	}	926	}
843		927
844	errno = 0;	928	errno = 0;
		929	return count;
845	}	930	}
846		931
847	#endif	932	#endif
848		933
849	#if !HAVE_READDIR_R	934	#if !HAVE_READDIR_R
850	# define readdir_r aio_readdir_r	935	# define readdir_r aio_readdir_r
851		936
852	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	937	static mutex_t readdirlock = X_MUTEX_INIT;
853		938
854	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	939	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
855	{	940	{
856	struct dirent *e;	941	X_DIRENT *e;
857	int errorno;	942	int errorno;
858		943
859	LOCK (readdirlock);	944	X_LOCK (readdirlock);
860		945
861	e = readdir (dirp);	946	e = readdir (dirp);
862	errorno = errno;	947	errorno = errno;
863		948
864	if (e)	949	if (e)
…		…
867	strcpy (ent->d_name, e->d_name);	952	strcpy (ent->d_name, e->d_name);
868	}	953	}
869	else	954	else
870	*res = 0;	955	*res = 0;
871		956
872	UNLOCK (readdirlock);	957	X_UNLOCK (readdirlock);
873		958
874	errno = errorno;	959	errno = errorno;
875	return e ? 0 : -1;	960	return e ? 0 : -1;
876	}	961	}
877	#endif	962	#endif
…		…
973	static void scandir_ (aio_req req, worker *self)	1058	static void scandir_ (aio_req req, worker *self)
974	{	1059	{
975	DIR *dirp;	1060	DIR *dirp;
976	union	1061	union
977	{	1062	{
978	struct dirent d;	1063	X_DIRENT d;
979	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1064	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
980	} *u;	1065	} *u;
981	struct dirent *entp;	1066	X_DIRENT *entp;
982	char *name, *names;	1067	char *name, *names;
983	int memlen = 4096;	1068	int memlen = 4096;
984	int memofs = 0;	1069	int memofs = 0;
985	int res = 0;	1070	int res = 0;
986	int errorno;
987		1071
988	LOCK (wrklock);	1072	X_LOCK (wrklock);
989	self->dirp = dirp = opendir (req->dataptr);	1073	self->dirp = dirp = opendir (req->ptr1);
990	self->dbuf = u = malloc (sizeof (*u));	1074	self->dbuf = u = malloc (sizeof (*u));
		1075	req->flags |= FLAG_PTR2_FREE;
991	req->data2ptr = names = malloc (memlen);	1076	req->ptr2 = names = malloc (memlen);
992	UNLOCK (wrklock);	1077	X_UNLOCK (wrklock);
993		1078
994	if (dirp && u && names)	1079	if (dirp && u && names)
995	for (;;)	1080	for (;;)
996	{	1081	{
997	errno = 0;	1082	errno = 0;
…		…
1009	res++;	1094	res++;
1010		1095
1011	while (memofs + len > memlen)	1096	while (memofs + len > memlen)
1012	{	1097	{
1013	memlen *= 2;	1098	memlen *= 2;
1014	LOCK (wrklock);	1099	X_LOCK (wrklock);
1015	req->data2ptr = names = realloc (names, memlen);	1100	req->ptr2 = names = realloc (names, memlen);
1016	UNLOCK (wrklock);	1101	X_UNLOCK (wrklock);
1017		1102
1018	if (!names)	1103	if (!names)
1019	break;	1104	break;
1020	}	1105	}
1021		1106
…		…
1030	req->result = res;	1115	req->result = res;
1031	}	1116	}
1032		1117
1033	/*****************************************************************************/	1118	/*****************************************************************************/
1034		1119
1035	static void *aio_proc (void *thr_arg)	1120	X_THREAD_PROC (aio_proc)
1036	{	1121	{
		1122	{//D
1037	aio_req req;	1123	aio_req req;
1038	struct timespec ts;	1124	struct timespec ts;
1039	worker *self = (worker *)thr_arg;	1125	worker *self = (worker *)thr_arg;
1040		1126
1041	/* try to distribute timeouts somewhat evenly */	1127	/* try to distribute timeouts somewhat randomly */
1042	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1128	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1043	* (1000000000UL / 1024UL);
1044		1129
1045	for (;;)	1130	for (;;)
1046	{	1131	{
1047	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1132	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1048		1133
1049	LOCK (reqlock);	1134	X_LOCK (reqlock);
1050		1135
1051	for (;;)	1136	for (;;)
1052	{	1137	{
1053	self->req = req = reqq_shift (&req_queue);	1138	self->req = req = reqq_shift (&req_queue);
1054		1139
1055	if (req)	1140	if (req)
1056	break;	1141	break;
1057		1142
1058	++idle;	1143	++idle;
1059		1144
1060	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1145	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1061	== ETIMEDOUT)	1146	== ETIMEDOUT)
1062	{	1147	{
1063	if (idle > max_idle)	1148	if (idle > max_idle)
1064	{	1149	{
1065	--idle;	1150	--idle;
1066	UNLOCK (reqlock);	1151	X_UNLOCK (reqlock);
1067	LOCK (wrklock);	1152	X_LOCK (wrklock);
1068	--started;	1153	--started;
1069	UNLOCK (wrklock);	1154	X_UNLOCK (wrklock);
1070	goto quit;	1155	goto quit;
1071	}	1156	}
1072		1157
1073	/* we are allowed to idle, so do so without any timeout */	1158	/* we are allowed to idle, so do so without any timeout */
1074	pthread_cond_wait (&reqwait, &reqlock);	1159	X_COND_WAIT (reqwait, reqlock);
1075	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1160	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1076	}	1161	}
1077		1162
1078	--idle;	1163	--idle;
1079	}	1164	}
1080		1165
1081	--nready;	1166	--nready;
1082		1167
1083	UNLOCK (reqlock);	1168	X_UNLOCK (reqlock);
1084		1169
1085	errno = 0; /* strictly unnecessary */	1170	errno = 0; /* strictly unnecessary */
1086		1171
1087	if (!(req->flags & FLAG_CANCELLED))	1172	if (!(req->flags & FLAG_CANCELLED))
1088	switch (req->type)	1173	switch (req->type)
1089	{	1174	{
1090	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1175	case REQ_READ: req->result = req->offs >= 0
1091	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1176	? pread (req->int1, req->ptr1, req->size, req->offs)
		1177	: read (req->int1, req->ptr1, req->size); break;
		1178	case REQ_WRITE: req->result = req->offs >= 0
		1179	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1180	: write (req->int1, req->ptr1, req->size); break;
1092		1181
1093	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1182	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1094	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1183	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1095		1184
1096	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1185	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1097	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1186	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1098	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1187	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1099		1188
		1189	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1190	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1191	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1192	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1193	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1194	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1195
1100	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1196	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1101	case REQ_CLOSE: req->result = close (req->fd); break;	1197	case REQ_CLOSE: req->result = close (req->int1); break;
1102	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1198	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1103	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1199	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1200	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1104	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1201	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1105	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1202	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1106	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1203	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1107	case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;	1204	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1205	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1108		1206
1109	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1207	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1110	case REQ_FSYNC: req->result = fsync (req->fd); break;	1208	case REQ_FSYNC: req->result = fsync (req->int1); break;
1111	case REQ_READDIR: scandir_ (req, self); break;	1209	case REQ_READDIR: scandir_ (req, self); break;
1112		1210
1113	case REQ_BUSY:	1211	case REQ_BUSY:
		1212	#ifdef _WIN32
		1213	Sleep (req->nv1 * 1000.);
		1214	#else
1114	{	1215	{
1115	struct timeval tv;	1216	struct timeval tv;
1116		1217
1117	tv.tv_sec = req->fd;	1218	tv.tv_sec = req->nv1;
1118	tv.tv_usec = req->fd2;	1219	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1119		1220
1120	req->result = select (0, 0, 0, 0, &tv);	1221	req->result = select (0, 0, 0, 0, &tv);
		1222	}
		1223	#endif
		1224	break;
		1225
		1226	case REQ_UTIME:
		1227	case REQ_FUTIME:
		1228	{
		1229	struct timeval tv[2];
		1230	struct timeval *times;
		1231
		1232	if (req->nv1 != -1. || req->nv2 != -1.)
		1233	{
		1234	tv[0].tv_sec = req->nv1;
		1235	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1236	tv[1].tv_sec = req->nv2;
		1237	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1238
		1239	times = tv;
		1240	}
		1241	else
		1242	times = 0;
		1243
		1244
		1245	req->result = req->type == REQ_FUTIME
		1246	? futimes (req->int1, times)
		1247	: utimes (req->ptr1, times);
1121	}	1248	}
1122		1249
1123	case REQ_GROUP:	1250	case REQ_GROUP:
1124	case REQ_NOP:	1251	case REQ_NOP:
1125	break;	1252	break;
1126		1253
1127	case REQ_QUIT:	1254	case REQ_QUIT:
1128	goto quit;	1255	goto quit;
1129		1256
1130	default:	1257	default:
1131	req->result = ENOSYS;	1258	req->result = -1;
1132	break;	1259	break;
1133	}	1260	}
1134		1261
1135	req->errorno = errno;	1262	req->errorno = errno;
1136		1263
1137	LOCK (reslock);	1264	X_LOCK (reslock);
1138		1265
1139	++npending;	1266	++npending;
1140		1267
1141	if (!reqq_push (&res_queue, req))	1268	if (!reqq_push (&res_queue, req))
		1269	{
1142	/* write a dummy byte to the pipe so fh becomes ready */	1270	/* write a dummy byte to the pipe so fh becomes ready */
1143	write (respipe [1], &respipe, 1);	1271	write (respipe [1], &respipe, 1);
		1272
		1273	/* optionally signal the main thread asynchronously */
		1274	if (main_sig)
		1275	pthread_kill (main_tid, main_sig);
		1276	}
1144		1277
1145	self->req = 0;	1278	self->req = 0;
1146	worker_clear (self);	1279	worker_clear (self);
1147		1280
1148	UNLOCK (reslock);	1281	X_UNLOCK (reslock);
1149	}	1282	}
1150		1283
1151	quit:	1284	quit:
1152	LOCK (wrklock);	1285	X_LOCK (wrklock);
1153	worker_free (self);	1286	worker_free (self);
1154	UNLOCK (wrklock);	1287	X_UNLOCK (wrklock);
1155		1288
1156	return 0;	1289	return 0;
		1290	}//D
1157	}	1291	}
1158		1292
1159	/*****************************************************************************/	1293	/*****************************************************************************/
1160		1294
1161	static void atfork_prepare (void)	1295	static void atfork_prepare (void)
1162	{	1296	{
1163	LOCK (wrklock);	1297	X_LOCK (wrklock);
1164	LOCK (reqlock);	1298	X_LOCK (reqlock);
1165	LOCK (reslock);	1299	X_LOCK (reslock);
1166	#if !HAVE_PREADWRITE	1300	#if !HAVE_PREADWRITE
1167	LOCK (preadwritelock);	1301	X_LOCK (preadwritelock);
1168	#endif	1302	#endif
1169	#if !HAVE_READDIR_R	1303	#if !HAVE_READDIR_R
1170	LOCK (readdirlock);	1304	X_LOCK (readdirlock);
1171	#endif	1305	#endif
1172	}	1306	}
1173		1307
1174	static void atfork_parent (void)	1308	static void atfork_parent (void)
1175	{	1309	{
1176	#if !HAVE_READDIR_R	1310	#if !HAVE_READDIR_R
1177	UNLOCK (readdirlock);	1311	X_UNLOCK (readdirlock);
1178	#endif	1312	#endif
1179	#if !HAVE_PREADWRITE	1313	#if !HAVE_PREADWRITE
1180	UNLOCK (preadwritelock);	1314	X_UNLOCK (preadwritelock);
1181	#endif	1315	#endif
1182	UNLOCK (reslock);	1316	X_UNLOCK (reslock);
1183	UNLOCK (reqlock);	1317	X_UNLOCK (reqlock);
1184	UNLOCK (wrklock);	1318	X_UNLOCK (wrklock);
1185	}	1319	}
1186		1320
1187	static void atfork_child (void)	1321	static void atfork_child (void)
1188	{	1322	{
1189	aio_req prv;	1323	aio_req prv;
1190		1324
1191	while (prv = reqq_shift (&req_queue))	1325	while (prv = reqq_shift (&req_queue))
1192	req_free (prv);	1326	req_destroy (prv);
1193		1327
1194	while (prv = reqq_shift (&res_queue))	1328	while (prv = reqq_shift (&res_queue))
1195	req_free (prv);	1329	req_destroy (prv);
1196		1330
1197	while (wrk_first.next != &wrk_first)	1331	while (wrk_first.next != &wrk_first)
1198	{	1332	{
1199	worker *wrk = wrk_first.next;	1333	worker *wrk = wrk_first.next;
1200		1334
1201	if (wrk->req)	1335	if (wrk->req)
1202	req_free (wrk->req);	1336	req_destroy (wrk->req);
1203		1337
1204	worker_clear (wrk);	1338	worker_clear (wrk);
1205	worker_free (wrk);	1339	worker_free (wrk);
1206	}	1340	}
1207		1341
…		…
1211	nready = 0;	1345	nready = 0;
1212	npending = 0;	1346	npending = 0;
1213		1347
1214	close (respipe [0]);	1348	close (respipe [0]);
1215	close (respipe [1]);	1349	close (respipe [1]);
1216	create_pipe ();	1350
		1351	if (!create_pipe (respipe))
		1352	croak ("cannot set result pipe to nonblocking mode");
1217		1353
1218	atfork_parent ();	1354	atfork_parent ();
1219	}	1355	}
1220		1356
1221	#define dREQ \	1357	#define dREQ \
…		…
1250	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1386	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1251	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1387	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1252	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1388	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1253	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1389	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1254	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1390	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1391	#ifdef _WIN32
		1392	X_MUTEX_CHECK (wrklock);
		1393	X_MUTEX_CHECK (reslock);
		1394	X_MUTEX_CHECK (reqlock);
		1395	X_MUTEX_CHECK (reqwait);
		1396	X_MUTEX_CHECK (preadwritelock);
		1397	X_MUTEX_CHECK (readdirlock);
		1398	#else
1255	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1399	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1400	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1401	#endif
1256		1402
1257	create_pipe ();	1403	if (!create_pipe (respipe))
		1404	croak ("cannot set result pipe to nonblocking mode");
		1405
1258	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1406	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1259	}	1407	}
1260		1408
1261	void	1409	void
1262	max_poll_reqs (int nreqs)	1410	max_poll_reqs (int nreqs)
1263	PROTOTYPE: $	1411	PROTOTYPE: $
…		…
1292	max_outstanding = maxreqs;	1440	max_outstanding = maxreqs;
1293	OUTPUT:	1441	OUTPUT:
1294	RETVAL	1442	RETVAL
1295		1443
1296	void	1444	void
1297	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1445	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1298	SV * pathname
1299	int flags
1300	int mode
1301	SV * callback
1302	PROTOTYPE: $$$;$	1446	PROTOTYPE: $$$;$
1303	PPCODE:	1447	PPCODE:
1304	{	1448	{
1305	dREQ;	1449	dREQ;
1306		1450
1307	req->type = REQ_OPEN;	1451	req->type = REQ_OPEN;
1308	req->data = newSVsv (pathname);	1452	req->sv1 = newSVsv (pathname);
1309	req->dataptr = SvPVbyte_nolen (req->data);	1453	req->ptr1 = SvPVbyte_nolen (req->sv1);
1310	req->fd = flags;	1454	req->int1 = flags;
1311	req->mode = mode;	1455	req->mode = mode;
1312		1456
1313	REQ_SEND;	1457	REQ_SEND;
1314	}	1458	}
1315		1459
1316	void	1460	void
1317	aio_close (fh,callback=&PL_sv_undef)	1461	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1318	SV * fh
1319	SV * callback
1320	PROTOTYPE: $;$	1462	PROTOTYPE: $;$
1321	ALIAS:	1463	ALIAS:
1322	aio_close = REQ_CLOSE	1464	aio_close = REQ_CLOSE
1323	aio_fsync = REQ_FSYNC	1465	aio_fsync = REQ_FSYNC
1324	aio_fdatasync = REQ_FDATASYNC	1466	aio_fdatasync = REQ_FDATASYNC
1325	PPCODE:	1467	PPCODE:
1326	{	1468	{
1327	dREQ;	1469	dREQ;
1328		1470
1329	req->type = ix;	1471	req->type = ix;
1330	req->fh = newSVsv (fh);	1472	req->sv1 = newSVsv (fh);
1331	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1473	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1332		1474
1333	REQ_SEND (req);	1475	REQ_SEND (req);
1334	}	1476	}
1335		1477
1336	void	1478	void
1337	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1338	SV * fh
1339	UV offset
1340	UV length
1341	SV * data
1342	UV dataoffset
1343	SV * callback
1344	ALIAS:	1480	ALIAS:
1345	aio_read = REQ_READ	1481	aio_read = REQ_READ
1346	aio_write = REQ_WRITE	1482	aio_write = REQ_WRITE
1347	PROTOTYPE: $$$$$;$	1483	PROTOTYPE: $$$$$;$
1348	PPCODE:	1484	PPCODE:
1349	{	1485	{
1350	aio_req req;
1351	STRLEN svlen;	1486	STRLEN svlen;
1352	char *svptr = SvPVbyte (data, svlen);	1487	char *svptr = SvPVbyte (data, svlen);
		1488	UV len = SvUV (length);
1353		1489
1354	SvUPGRADE (data, SVt_PV);	1490	SvUPGRADE (data, SVt_PV);
1355	SvPOK_on (data);	1491	SvPOK_on (data);
1356		1492
1357	if (dataoffset < 0)	1493	if (dataoffset < 0)
1358	dataoffset += svlen;	1494	dataoffset += svlen;
1359		1495
1360	if (dataoffset < 0 || dataoffset > svlen)	1496	if (dataoffset < 0 || dataoffset > svlen)
1361	croak ("data offset outside of string");	1497	croak ("dataoffset outside of data scalar");
1362		1498
1363	if (ix == REQ_WRITE)	1499	if (ix == REQ_WRITE)
1364	{	1500	{
1365	/* write: check length and adjust. */	1501	/* write: check length and adjust. */
1366	if (length < 0 || length + dataoffset > svlen)	1502	if (!SvOK (length) || len + dataoffset > svlen)
1367	length = svlen - dataoffset;	1503	len = svlen - dataoffset;
1368	}	1504	}
1369	else	1505	else
1370	{	1506	{
1371	/* read: grow scalar as necessary */	1507	/* read: grow scalar as necessary */
1372	svptr = SvGROW (data, length + dataoffset);	1508	svptr = SvGROW (data, len + dataoffset + 1);
1373	}	1509	}
1374		1510
1375	if (length < 0)	1511	if (len < 0)
1376	croak ("length must not be negative");	1512	croak ("length must not be negative");
1377		1513
1378	{	1514	{
1379	dREQ;	1515	dREQ;
1380		1516
1381	req->type = ix;	1517	req->type = ix;
1382	req->fh = newSVsv (fh);	1518	req->sv1 = newSVsv (fh);
1383	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1519	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1384	: IoOFP (sv_2io (fh)));	1520	: IoOFP (sv_2io (fh)));
		1521	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1385	req->offset = offset;	1522	req->size = len;
1386	req->length = length;
1387	req->data = SvREFCNT_inc (data);	1523	req->sv2 = SvREFCNT_inc (data);
1388	req->dataptr = (char *)svptr + dataoffset;	1524	req->ptr1 = (char *)svptr + dataoffset;
		1525	req->stroffset = dataoffset;
1389		1526
1390	if (!SvREADONLY (data))	1527	if (!SvREADONLY (data))
1391	{	1528	{
1392	SvREADONLY_on (data);	1529	SvREADONLY_on (data);
1393	req->data2ptr = (void *)data;	1530	req->flags |= FLAG_SV2_RO_OFF;
1394	}	1531	}
1395		1532
1396	REQ_SEND;	1533	REQ_SEND;
1397	}	1534	}
1398	}	1535	}
1399		1536
1400	void	1537	void
		1538	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1539	PROTOTYPE: $$;$
		1540	PPCODE:
		1541	{
		1542	SV *data;
		1543	dREQ;
		1544
		1545	data = newSV (NAME_MAX);
		1546	SvPOK_on (data);
		1547
		1548	req->type = REQ_READLINK;
		1549	req->sv1 = newSVsv (path);
		1550	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1551	req->sv2 = data;
		1552	req->ptr1 = SvPVbyte_nolen (data);
		1553
		1554	REQ_SEND;
		1555	}
		1556
		1557	void
1401	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1558	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1402	SV * out_fh
1403	SV * in_fh
1404	UV in_offset
1405	UV length
1406	SV * callback
1407	PROTOTYPE: $$$$;$	1559	PROTOTYPE: $$$$;$
1408	PPCODE:	1560	PPCODE:
1409	{	1561	{
1410	dREQ;	1562	dREQ;
1411		1563
1412	req->type = REQ_SENDFILE;	1564	req->type = REQ_SENDFILE;
1413	req->fh = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1414	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1415	req->fh2 = newSVsv (in_fh);	1567	req->sv2 = newSVsv (in_fh);
1416	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1568	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1417	req->offset = in_offset;	1569	req->offs = SvVAL64 (in_offset);
1418	req->length = length;	1570	req->size = length;
1419		1571
1420	REQ_SEND;	1572	REQ_SEND;
1421	}	1573	}
1422		1574
1423	void	1575	void
1424	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1425	SV * fh
1426	UV offset
1427	IV length
1428	SV * callback
1429	PROTOTYPE: $$$;$	1577	PROTOTYPE: $$$;$
1430	PPCODE:	1578	PPCODE:
1431	{	1579	{
1432	dREQ;	1580	dREQ;
1433		1581
1434	req->type = REQ_READAHEAD;	1582	req->type = REQ_READAHEAD;
1435	req->fh = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1436	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1584	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1437	req->offset = offset;	1585	req->offs = SvVAL64 (offset);
1438	req->length = length;	1586	req->size = length;
1439		1587
1440	REQ_SEND;	1588	REQ_SEND;
1441	}	1589	}
1442		1590
1443	void	1591	void
1444	aio_stat (fh_or_path,callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1445	SV * fh_or_path
1446	SV * callback
1447	ALIAS:	1593	ALIAS:
1448	aio_stat = REQ_STAT	1594	aio_stat = REQ_STAT
1449	aio_lstat = REQ_LSTAT	1595	aio_lstat = REQ_LSTAT
1450	PPCODE:	1596	PPCODE:
1451	{	1597	{
1452	dREQ;	1598	dREQ;
1453		1599
1454	New (0, req->statdata, 1, Stat_t);	1600	req->ptr2 = malloc (sizeof (Stat_t));
1455	if (!req->statdata)	1601	if (!req->ptr2)
1456	{	1602	{
1457	req_free (req);	1603	req_destroy (req);
1458	croak ("out of memory during aio_req->statdata allocation");	1604	croak ("out of memory during aio_stat statdata allocation");
1459	}	1605	}
		1606
		1607	req->flags |= FLAG_PTR2_FREE;
		1608	req->sv1 = newSVsv (fh_or_path);
1460		1609
1461	if (SvPOK (fh_or_path))	1610	if (SvPOK (fh_or_path))
1462	{	1611	{
1463	req->type = ix;	1612	req->type = ix;
1464	req->data = newSVsv (fh_or_path);
1465	req->dataptr = SvPVbyte_nolen (req->data);	1613	req->ptr1 = SvPVbyte_nolen (req->sv1);
1466	}	1614	}
1467	else	1615	else
1468	{	1616	{
1469	req->type = REQ_FSTAT;	1617	req->type = REQ_FSTAT;
1470	req->fh = newSVsv (fh_or_path);
1471	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1618	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1472	}	1619	}
1473		1620
1474	REQ_SEND;	1621	REQ_SEND;
1475	}	1622	}
1476		1623
1477	void	1624	void
		1625	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1626	PPCODE:
		1627	{
		1628	dREQ;
		1629
		1630	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1631	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1632	req->sv1 = newSVsv (fh_or_path);
		1633
		1634	if (SvPOK (fh_or_path))
		1635	{
		1636	req->type = REQ_UTIME;
		1637	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1638	}
		1639	else
		1640	{
		1641	req->type = REQ_FUTIME;
		1642	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1643	}
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
		1649	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1650	PPCODE:
		1651	{
		1652	dREQ;
		1653
		1654	req->sv1 = newSVsv (fh_or_path);
		1655	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1656
		1657	if (SvPOK (fh_or_path))
		1658	{
		1659	req->type = REQ_TRUNCATE;
		1660	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1661	}
		1662	else
		1663	{
		1664	req->type = REQ_FTRUNCATE;
		1665	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1666	}
		1667
		1668	REQ_SEND;
		1669	}
		1670
		1671	void
		1672	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1673	PPCODE:
		1674	{
		1675	dREQ;
		1676
		1677	req->mode = mode;
		1678	req->sv1 = newSVsv (fh_or_path);
		1679
		1680	if (SvPOK (fh_or_path))
		1681	{
		1682	req->type = REQ_CHMOD;
		1683	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1684	}
		1685	else
		1686	{
		1687	req->type = REQ_FCHMOD;
		1688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1689	}
		1690
		1691	REQ_SEND;
		1692	}
		1693
		1694	void
		1695	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1696	PPCODE:
		1697	{
		1698	dREQ;
		1699
		1700	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1701	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1702	req->sv1 = newSVsv (fh_or_path);
		1703
		1704	if (SvPOK (fh_or_path))
		1705	{
		1706	req->type = REQ_CHOWN;
		1707	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1708	}
		1709	else
		1710	{
		1711	req->type = REQ_FCHOWN;
		1712	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1713	}
		1714
		1715	REQ_SEND;
		1716	}
		1717
		1718	void
1478	aio_unlink (pathname,callback=&PL_sv_undef)	1719	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1479	SV * pathname
1480	SV * callback
1481	ALIAS:	1720	ALIAS:
1482	aio_unlink = REQ_UNLINK	1721	aio_unlink = REQ_UNLINK
1483	aio_rmdir = REQ_RMDIR	1722	aio_rmdir = REQ_RMDIR
1484	aio_readdir = REQ_READDIR	1723	aio_readdir = REQ_READDIR
1485	PPCODE:	1724	PPCODE:
1486	{	1725	{
1487	dREQ;	1726	dREQ;
1488		1727
1489	req->type = ix;	1728	req->type = ix;
1490	req->data = newSVsv (pathname);	1729	req->sv1 = newSVsv (pathname);
1491	req->dataptr = SvPVbyte_nolen (req->data);	1730	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1731
		1732	REQ_SEND;
		1733	}
		1734
		1735	void
		1736	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1737	PPCODE:
		1738	{
		1739	dREQ;
1492		1740
		1741	req->type = REQ_MKDIR;
		1742	req->sv1 = newSVsv (pathname);
		1743	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1744	req->mode = mode;
		1745
1493	REQ_SEND;	1746	REQ_SEND;
1494	}	1747	}
1495		1748
1496	void	1749	void
1497	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1750	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1498	SV * oldpath
1499	SV * newpath
1500	SV * callback
1501	ALIAS:	1751	ALIAS:
1502	aio_link = REQ_LINK	1752	aio_link = REQ_LINK
1503	aio_symlink = REQ_SYMLINK	1753	aio_symlink = REQ_SYMLINK
1504	aio_rename = REQ_RENAME	1754	aio_rename = REQ_RENAME
1505	PPCODE:	1755	PPCODE:
1506	{	1756	{
1507	dREQ;	1757	dREQ;
1508		1758
1509	req->type = ix;	1759	req->type = ix;
1510	req->fh = newSVsv (oldpath);	1760	req->sv2 = newSVsv (oldpath);
1511	req->data2ptr = SvPVbyte_nolen (req->fh);	1761	req->ptr2 = SvPVbyte_nolen (req->sv2);
1512	req->data = newSVsv (newpath);	1762	req->sv1 = newSVsv (newpath);
1513	req->dataptr = SvPVbyte_nolen (req->data);	1763	req->ptr1 = SvPVbyte_nolen (req->sv1);
1514		1764
1515	REQ_SEND;	1765	REQ_SEND;
1516	}	1766	}
1517		1767
1518	void	1768	void
1519	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1769	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1520	SV * pathname
1521	SV * callback
1522	UV mode
1523	UV dev
1524	PPCODE:	1770	PPCODE:
1525	{	1771	{
1526	dREQ;	1772	dREQ;
1527		1773
1528	req->type = REQ_MKNOD;	1774	req->type = REQ_MKNOD;
1529	req->data = newSVsv (pathname);	1775	req->sv1 = newSVsv (pathname);
1530	req->dataptr = SvPVbyte_nolen (req->data);	1776	req->ptr1 = SvPVbyte_nolen (req->sv1);
1531	req->mode = (mode_t)mode;	1777	req->mode = (mode_t)mode;
1532	req->offset = dev;	1778	req->offs = dev;
1533		1779
1534	REQ_SEND;	1780	REQ_SEND;
1535	}	1781	}
1536		1782
1537	void	1783	void
1538	aio_busy (delay,callback=&PL_sv_undef)	1784	aio_busy (double delay, SV *callback=&PL_sv_undef)
1539	double delay
1540	SV * callback
1541	PPCODE:	1785	PPCODE:
1542	{	1786	{
1543	dREQ;	1787	dREQ;
1544		1788
1545	req->type = REQ_BUSY;	1789	req->type = REQ_BUSY;
1546	req->fd = delay < 0. ? 0 : delay;	1790	req->nv1 = delay < 0. ? 0. : delay;
1547	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1548		1791
1549	REQ_SEND;	1792	REQ_SEND;
1550	}	1793	}
1551		1794
1552	void	1795	void
1553	aio_group (callback=&PL_sv_undef)	1796	aio_group (SV *callback=&PL_sv_undef)
1554	SV * callback
1555	PROTOTYPE: ;$	1797	PROTOTYPE: ;$
1556	PPCODE:	1798	PPCODE:
1557	{	1799	{
1558	dREQ;	1800	dREQ;
1559		1801
1560	req->type = REQ_GROUP;	1802	req->type = REQ_GROUP;
		1803
1561	req_send (req);	1804	req_send (req);
1562
1563	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1805	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1564	}	1806	}
1565		1807
1566	void	1808	void
1567	aio_nop (callback=&PL_sv_undef)	1809	aio_nop (SV *callback=&PL_sv_undef)
1568	SV * callback
1569	PPCODE:	1810	PPCODE:
1570	{	1811	{
1571	dREQ;	1812	dREQ;
1572		1813
1573	req->type = REQ_NOP;	1814	req->type = REQ_NOP;
…		…
1602	PROTOTYPE:	1843	PROTOTYPE:
1603	CODE:	1844	CODE:
1604	while (nreqs)	1845	while (nreqs)
1605	{	1846	{
1606	poll_wait ();	1847	poll_wait ();
1607	poll_cb (0);	1848	poll_cb ();
1608	}	1849	}
1609		1850
1610	void	1851	int
1611	poll()	1852	poll()
1612	PROTOTYPE:	1853	PROTOTYPE:
1613	CODE:	1854	CODE:
1614	if (nreqs)
1615	{
1616	poll_wait ();	1855	poll_wait ();
1617	poll_cb (0);	1856	RETVAL = poll_cb ();
1618	}	1857	OUTPUT:
		1858	RETVAL
1619		1859
1620	int	1860	int
1621	poll_fileno()	1861	poll_fileno()
1622	PROTOTYPE:	1862	PROTOTYPE:
1623	CODE:	1863	CODE:
…		…
1635		1875
1636	void	1876	void
1637	poll_wait()	1877	poll_wait()
1638	PROTOTYPE:	1878	PROTOTYPE:
1639	CODE:	1879	CODE:
1640	if (nreqs)
1641	poll_wait ();	1880	poll_wait ();
		1881
		1882	void
		1883	setsig (int signum = SIGIO)
		1884	PROTOTYPE: ;$
		1885	CODE:
		1886	{
		1887	if (block_sig_level)
		1888	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1889
		1890	X_LOCK (reslock);
		1891	main_tid = pthread_self ();
		1892	main_sig = signum;
		1893	X_UNLOCK (reslock);
		1894
		1895	if (main_sig && npending)
		1896	pthread_kill (main_tid, main_sig);
		1897	}
		1898
		1899	void
		1900	aio_block (SV *cb)
		1901	PROTOTYPE: &
		1902	PPCODE:
		1903	{
		1904	int count;
		1905
		1906	block_sig ();
		1907	PUSHMARK (SP);
		1908	PUTBACK;
		1909	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1910	SPAGAIN;
		1911	unblock_sig ();
		1912
		1913	if (SvTRUE (ERRSV))
		1914	croak (0);
		1915
		1916	XSRETURN (count);
		1917	}
1642		1918
1643	int	1919	int
1644	nreqs()	1920	nreqs()
1645	PROTOTYPE:	1921	PROTOTYPE:
1646	CODE:	1922	CODE:
…		…
1666		1942
1667	int	1943	int
1668	nthreads()	1944	nthreads()
1669	PROTOTYPE:	1945	PROTOTYPE:
1670	CODE:	1946	CODE:
1671	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1947	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1672	RETVAL = started;	1948	RETVAL = started;
1673	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1949	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1674	OUTPUT:	1950	OUTPUT:
1675	RETVAL	1951	RETVAL
1676		1952
1677	PROTOTYPES: DISABLE	1953	PROTOTYPES: DISABLE
1678		1954
…		…
1696	PPCODE:	1972	PPCODE:
1697	{	1973	{
1698	int i;	1974	int i;
1699	aio_req req;	1975	aio_req req;
1700		1976
		1977	if (main_sig && !block_sig_level)
		1978	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		1979
1701	if (grp->fd == 2)	1980	if (grp->int1 == 2)
1702	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1981	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1703		1982
1704	for (i = 1; i < items; ++i )	1983	for (i = 1; i < items; ++i )
1705	{	1984	{
1706	if (GIMME_V != G_VOID)	1985	if (GIMME_V != G_VOID)
…		…
1708		1987
1709	req = SvAIO_REQ (ST (i));	1988	req = SvAIO_REQ (ST (i));
1710		1989
1711	if (req)	1990	if (req)
1712	{	1991	{
1713	++grp->length;	1992	++grp->size;
1714	req->grp = grp;	1993	req->grp = grp;
1715		1994
1716	req->grp_prev = 0;	1995	req->grp_prev = 0;
1717	req->grp_next = grp->grp_first;	1996	req->grp_next = grp->grp_first;
1718		1997
…		…
1741	av = newAV ();	2020	av = newAV ();
1742		2021
1743	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1744	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1745		2024
1746	SvREFCNT_dec (grp->data);	2025	SvREFCNT_dec (grp->sv1);
1747	grp->data = (SV *)av;	2026	grp->sv1 = (SV *)av;
1748	}	2027	}
1749		2028
1750	void	2029	void
1751	errno (aio_req grp, int errorno = errno)	2030	errno (aio_req grp, int errorno = errno)
1752	CODE:	2031	CODE:
1753	grp->errorno = errorno;	2032	grp->errorno = errorno;
1754		2033
1755	void	2034	void
1756	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1757	CODE:	2036	CODE:
1758	grp->fd2 = limit;	2037	grp->int2 = limit;
1759	aio_grp_feed (grp);	2038	aio_grp_feed (grp);
1760		2039
1761	void	2040	void
1762	feed (aio_req grp, SV *callback=&PL_sv_undef)	2041	feed (aio_req grp, SV *callback=&PL_sv_undef)
1763	CODE:	2042	CODE:
1764	{	2043	{
1765	SvREFCNT_dec (grp->fh2);	2044	SvREFCNT_dec (grp->sv2);
1766	grp->fh2 = newSVsv (callback);	2045	grp->sv2 = newSVsv (callback);
1767		2046
1768	if (grp->fd2 <= 0)	2047	if (grp->int2 <= 0)
1769	grp->fd2 = 2;	2048	grp->int2 = 2;
1770		2049
1771	aio_grp_feed (grp);	2050	aio_grp_feed (grp);
1772	}	2051	}
1773		2052

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