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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 1.112 by root, Tue Apr 1 19:40:47 2008 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 send
		30	# undef recv
		31	# undef stat
		32	# undef fstat
		33	# define lstat stat
		34	# undef truncate
		35	# undef ftruncate
		36	# undef open
		37	# undef close
		38	# undef unlink
		39	# undef rmdir
		40	# undef rename
		41	# undef lseek
		42
		43	# define chown(a,b,c) (errno = ENOSYS, -1)
		44	# define fchown(a,b,c) (errno = ENOSYS, -1)
		45	# define fchmod(a,b) (errno = ENOSYS, -1)
		46	# define symlink(a,b) (errno = ENOSYS, -1)
		47	# define readlink(a,b,c) (errno = ENOSYS, -1)
		48	# define mknod(a,b,c) (errno = ENOSYS, -1)
		49	# define truncate(a,b) (errno = ENOSYS, -1)
		50	# define ftruncate(fd,o) chsize ((fd), (o))
		51	# define fsync(fd) _commit (fd)
		52	# define opendir(fd) (errno = ENOSYS, 0)
		53	# define readdir(fd) (errno = ENOSYS, -1)
		54	# define closedir(fd) (errno = ENOSYS, -1)
		55	# define mkdir(a,b) mkdir (a)
		56
		57	#else
		58
		59	# include "autoconf/config.h"
		60	# include <sys/time.h>
		61	# include <sys/select.h>
		62	# include <unistd.h>
		63	# include <utime.h>
		64	# include <signal.h>
		65	typedef struct dirent X_DIRENT;
		66
		67	#endif
32		68
33	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
34	# if __linux	70	# if __linux
35	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
36	# elif __freebsd	72	# elif __freebsd
…		…
51	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
52	#ifndef NAME_MAX	88	#ifndef NAME_MAX
53	# define NAME_MAX 4096	89	# define NAME_MAX 4096
54	#endif	90	#endif
55		91
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 */	92	/* buffer size for various temporary buffers */
82	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
83		94
		95	/* use NV for 32 bit perls as it allows larger offsets */
		96	#if IVSIZE >= 8
		97	# define SvVAL64 SvIV
		98	#else
		99	# define SvVAL64 SvNV
		100	#endif
		101
		102	static HV *stash;
		103
84	#define dBUF \	104	#define dBUF \
85	char *aio_buf; \	105	char *aio_buf; \
86	LOCK (wrklock); \	106	X_LOCK (wrklock); \
87	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
89	if (!aio_buf) \	109	if (!aio_buf) \
90	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
91		113
92	enum {	114	enum {
93	REQ_QUIT,	115	REQ_QUIT,
94	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
95	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
96	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
97	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	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,
98	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
99	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100	REQ_MKNOD, REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
101	REQ_LINK, REQ_SYMLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
103	REQ_BUSY,	129	REQ_BUSY,
104	};	130	};
105		131
106	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
108		134
109	typedef struct aio_cb	135	typedef struct aio_cb
110	{	136	{
111	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
112		138
113	SV *data, *callback;	139	SV *callback;
114	SV *fh, *fh2;	140	SV *sv1, *sv2;
115	void *dataptr, *data2ptr;	141	void *ptr1, *ptr2;
116	Stat_t *statdata;
117	off_t offset;	142	off_t offs;
118	size_t length;	143	size_t size;
119	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
120		146
121	STRLEN dataoffset;	147	STRLEN stroffset;
122	int type;	148	int type;
123	int fd, fd2;	149	int int1, int2, int3;
124	int errorno;	150	int errorno;
125	mode_t mode; /* open */	151	mode_t mode; /* open */
126		152
127	unsigned char flags;	153	unsigned char flags;
128	unsigned char pri;	154	unsigned char pri;
…		…
130	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
131	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132	} aio_cb;	158	} aio_cb;
133		159
134	enum {	160	enum {
135	FLAG_CANCELLED = 0x01,	161	FLAG_CANCELLED = 0x01, /* request was cancelled */
		162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
136	};	164	};
137		165
138	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
139	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
140		168
…		…
157	{	185	{
158	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS	186	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
159	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	187	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
160	}	188	}
161		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
162	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
163		225
164	static unsigned int started, idle, wanted;	226	static unsigned int started, idle, wanted;
165		227
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 */	228	/* worker threads management */
176	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
177		230
178	typedef struct worker {	231	typedef struct worker {
179	/* locked by wrklock */	232	/* locked by wrklock */
180	struct worker *prev, *next;	233	struct worker *prev, *next;
181		234
182	pthread_t tid;	235	thread_t tid;
183		236
184	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
185	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
186	void *dbuf;	239	void *dbuf;
187	DIR *dirp;	240	DIR *dirp;
…		…
213	}	266	}
214		267
215	static volatile unsigned int nreqs, nready, npending;	268	static volatile unsigned int nreqs, nready, npending;
216	static volatile unsigned int max_idle = 4;	269	static volatile unsigned int max_idle = 4;
217	static volatile unsigned int max_outstanding = 0xffffffff;	270	static volatile unsigned int max_outstanding = 0xffffffff;
218	static int respipe [2];	271	static int respipe_osf [2], respipe [2] = { -1, -1 };
219		272
220	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
221	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
222	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
223		276
224	#if WORDACCESS_UNSAFE	277	#if WORDACCESS_UNSAFE
225		278
226	static unsigned int get_nready ()	279	static unsigned int get_nready (void)
227	{	280	{
228	unsigned int retval;	281	unsigned int retval;
229		282
230	LOCK (reqlock);	283	X_LOCK (reqlock);
231	retval = nready;	284	retval = nready;
232	UNLOCK (reqlock);	285	X_UNLOCK (reqlock);
233		286
234	return retval;	287	return retval;
235	}	288	}
236		289
237	static unsigned int get_npending ()	290	static unsigned int get_npending (void)
238	{	291	{
239	unsigned int retval;	292	unsigned int retval;
240		293
241	LOCK (reslock);	294	X_LOCK (reslock);
242	retval = npending;	295	retval = npending;
243	UNLOCK (reslock);	296	X_UNLOCK (reslock);
244		297
245	return retval;	298	return retval;
246	}	299	}
247		300
248	static unsigned int get_nthreads ()	301	static unsigned int get_nthreads (void)
249	{	302	{
250	unsigned int retval;	303	unsigned int retval;
251		304
252	LOCK (wrklock);	305	X_LOCK (wrklock);
253	retval = started;	306	retval = started;
254	UNLOCK (wrklock);	307	X_UNLOCK (wrklock);
255		308
256	return retval;	309	return retval;
257	}	310	}
258		311
259	#else	312	#else
…		…
316	}	369	}
317		370
318	abort ();	371	abort ();
319	}	372	}
320		373
321	static int poll_cb ();	374	static int poll_cb (void);
322	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
323	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
324	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
325		378
326	/* must be called at most once */	379	/* must be called at most once */
327	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
328	{	381	{
…		…
347	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
348	}	401	}
349		402
350	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
351	{	404	{
		405	block_sig ();
		406
352	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
353	{	408	{
354	int old_len = grp->length;	409	int old_len = grp->size;
355		410
356	if (grp->fh2 && SvOK (grp->fh2))	411	if (grp->sv2 && SvOK (grp->sv2))
357	{	412	{
358	dSP;	413	dSP;
359		414
360	ENTER;	415	ENTER;
361	SAVETMPS;	416	SAVETMPS;
362	PUSHMARK (SP);	417	PUSHMARK (SP);
363	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
364	PUTBACK;	419	PUTBACK;
365	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
366	SPAGAIN;	421	SPAGAIN;
367	FREETMPS;	422	FREETMPS;
368	LEAVE;	423	LEAVE;
369	}	424	}
370		425
371	/* stop if no progress has been made */	426	/* stop if no progress has been made */
372	if (old_len == grp->length)	427	if (old_len == grp->size)
373	{	428	{
374	SvREFCNT_dec (grp->fh2);	429	SvREFCNT_dec (grp->sv2);
375	grp->fh2 = 0;	430	grp->sv2 = 0;
376	break;	431	break;
377	}	432	}
378	}	433	}
		434
		435	unblock_sig ();
379	}	436	}
380		437
381	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
382	{	439	{
383	--grp->length;	440	--grp->size;
384		441
385	/* call feeder, if applicable */	442	/* call feeder, if applicable */
386	aio_grp_feed (grp);	443	aio_grp_feed (grp);
387		444
388	/* finish, if done */	445	/* finish, if done */
389	if (!grp->length && grp->fd)	446	if (!grp->size && grp->int1)
390	{	447	{
		448	block_sig ();
		449
391	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
392	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
393	}	459	}
394	}	460	}
395		461
396	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
397	{	463	{
398	dSP;	464	dSP;
		465
		466	if (req->flags & FLAG_SV2_RO_OFF)
		467	SvREADONLY_off (req->sv2);
399		468
400	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
401	{	470	{
402	ENTER;	471	ENTER;
403	SAVETMPS;	472	SAVETMPS;
…		…
411	SV *rv = &PL_sv_undef;	480	SV *rv = &PL_sv_undef;
412		481
413	if (req->result >= 0)	482	if (req->result >= 0)
414	{	483	{
415	int i;	484	int i;
416	char *buf = req->data2ptr;	485	char *buf = req->ptr2;
417	AV *av = newAV ();	486	AV *av = newAV ();
418		487
419	av_extend (av, req->result - 1);	488	av_extend (av, req->result - 1);
420		489
421	for (i = 0; i < req->result; ++i)	490	for (i = 0; i < req->result; ++i)
…		…
434	break;	503	break;
435		504
436	case REQ_OPEN:	505	case REQ_OPEN:
437	{	506	{
438	/* convert fd to fh */	507	/* convert fd to fh */
439	SV *fh;	508	SV *fh = &PL_sv_undef;
440		509
441	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
442	PUTBACK;	511	{
443	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
444	SPAGAIN;	513	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		514	char sym [64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
		518	gv_init (gv, stash, sym, symlen, 0);
445		519
446	fh = SvREFCNT_inc (POPs);	520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	req->result
		526	);
447		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
448	PUSHMARK (SP);	532	PUSHs (fh);
449	XPUSHs (sv_2mortal (fh));
450	}	533	}
451	break;	534	break;
452		535
453	case REQ_GROUP:	536	case REQ_GROUP:
454	req->fd = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
455		538
456	if (req->data)	539	if (req->sv1)
457	{	540	{
458	int i;	541	int i;
459	AV *av = (AV *)req->data;	542	AV *av = (AV *)req->sv1;
460		543
461	EXTEND (SP, AvFILL (av) + 1);	544	EXTEND (SP, AvFILL (av) + 1);
462	for (i = 0; i <= AvFILL (av); ++i)	545	for (i = 0; i <= AvFILL (av); ++i)
463	PUSHs (*av_fetch (av, i, 0));	546	PUSHs (*av_fetch (av, i, 0));
464	}	547	}
…		…
466		549
467	case REQ_NOP:	550	case REQ_NOP:
468	case REQ_BUSY:	551	case REQ_BUSY:
469	break;	552	break;
470		553
		554	case REQ_READLINK:
		555	if (req->result > 0)
		556	{
		557	SvCUR_set (req->sv2, req->result);
		558	*SvEND (req->sv2) = 0;
		559	PUSHs (req->sv2);
		560	}
		561	break;
		562
		563	case REQ_STAT:
		564	case REQ_LSTAT:
		565	case REQ_FSTAT:
		566	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		567	PL_laststatval = req->result;
		568	PL_statcache = *(Stat_t *)(req->ptr2);
		569	PUSHs (sv_2mortal (newSViv (req->result)));
		570	break;
		571
		572	case REQ_READ:
		573	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		574	*SvEND (req->sv2) = 0;
		575	PUSHs (sv_2mortal (newSViv (req->result)));
		576	break;
		577
471	default:	578	default:
472	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
473	break;	580	break;
474	}	581	}
475		582
476	errno = req->errorno;	583	errno = req->errorno;
477		584
478	PUTBACK;	585	PUTBACK;
479	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
480	SPAGAIN;	587	SPAGAIN;
481		588
482	FREETMPS;	589	FREETMPS;
483	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
484	}	593	}
485		594
486	if (req->grp)	595	if (req->grp)
487	{	596	{
488	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
495	grp->grp_first = req->grp_next;	604	grp->grp_first = req->grp_next;
496		605
497	aio_grp_dec (grp);	606	aio_grp_dec (grp);
498	}	607	}
499		608
500	if (SvTRUE (ERRSV))	609	return !SvTRUE (ERRSV);
501	{
502	req_free (req);
503	croak (0);
504	}
505	}	610	}
506		611
507	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
508	{	613	{
509	if (req->self)	614	if (req->self)
510	{	615	{
511	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
512	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
513	}	618	}
514		619
515	SvREFCNT_dec (req->data);
516	SvREFCNT_dec (req->fh);	620	SvREFCNT_dec (req->sv1);
517	SvREFCNT_dec (req->fh2);	621	SvREFCNT_dec (req->sv2);
518	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
519	Safefree (req->statdata);
520		623
521	if (req->type == REQ_READDIR)	624	if (req->flags & FLAG_PTR2_FREE)
522	free (req->data2ptr);	625	free (req->ptr2);
523		626
524	Safefree (req);	627	Safefree (req);
525	}	628	}
526		629
527	static void req_cancel_subs (aio_req grp)	630	static void req_cancel_subs (aio_req grp)
…		…
529	aio_req sub;	632	aio_req sub;
530		633
531	if (grp->type != REQ_GROUP)	634	if (grp->type != REQ_GROUP)
532	return;	635	return;
533		636
534	SvREFCNT_dec (grp->fh2);	637	SvREFCNT_dec (grp->sv2);
535	grp->fh2 = 0;	638	grp->sv2 = 0;
536		639
537	for (sub = grp->grp_first; sub; sub = sub->grp_next)	640	for (sub = grp->grp_first; sub; sub = sub->grp_next)
538	req_cancel (sub);	641	req_cancel (sub);
539	}	642	}
540		643
…		…
543	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
544		647
545	req_cancel_subs (req);	648	req_cancel_subs (req);
546	}	649	}
547		650
548	static void *aio_proc(void *arg);	651	#ifdef USE_SOCKETS_AS_HANDLES
		652	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		653	#else
		654	# define TO_SOCKET(x) (x)
		655	#endif
		656
		657	static void
		658	create_respipe (void)
		659	{
		660	int old_readfd = respipe [0];
		661
		662	if (respipe [1] >= 0)
		663	respipe_close (TO_SOCKET (respipe [1]));
		664
		665	#ifdef _WIN32
		666	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		667	#else
		668	if (pipe (respipe))
		669	#endif
		670	croak ("unable to initialize result pipe");
		671
		672	if (old_readfd >= 0)
		673	{
		674	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		675	croak ("unable to initialize result pipe(2)");
		676
		677	respipe_close (respipe [0]);
		678	respipe [0] = old_readfd;
		679	}
		680
		681	#ifdef _WIN32
		682	int arg = 1;
		683	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		684	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		685	#else
		686	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		687	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		688	#endif
		689	croak ("unable to initialize result pipe(3)");
		690
		691	respipe_osf [0] = TO_SOCKET (respipe [0]);
		692	respipe_osf [1] = TO_SOCKET (respipe [1]);
		693	}
		694
		695	X_THREAD_PROC (aio_proc);
549		696
550	static void start_thread (void)	697	static void start_thread (void)
551	{	698	{
552	sigset_t fullsigset, oldsigset;
553	pthread_attr_t attr;
554
555	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
556		700
557	if (!wrk)	701	if (!wrk)
558	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
559		703
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);	704	X_LOCK (wrklock);
570	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
571		705
572	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
573	{	707	{
574	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
575	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
576	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
577	wrk_first.next = wrk;	711	wrk_first.next = wrk;
578	++started;	712	++started;
579	}	713	}
580	else	714	else
581	free (wrk);	715	free (wrk);
582		716
583	sigprocmask (SIG_SETMASK, &oldsigset, 0);
584	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
585	}	718	}
586		719
587	static void maybe_start_thread ()	720	static void maybe_start_thread (void)
588	{	721	{
589	if (get_nthreads () >= wanted)	722	if (get_nthreads () >= wanted)
590	return;	723	return;
591		724
592	/* todo: maybe use idle here, but might be less exact */	725	/* todo: maybe use idle here, but might be less exact */
…		…
596	start_thread ();	729	start_thread ();
597	}	730	}
598		731
599	static void req_send (aio_req req)	732	static void req_send (aio_req req)
600	{	733	{
		734	block_sig ();
		735
601	++nreqs;	736	++nreqs;
602		737
603	LOCK (reqlock);	738	X_LOCK (reqlock);
604	++nready;	739	++nready;
605	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
606	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
607	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
		743
		744	unblock_sig ();
608		745
609	maybe_start_thread ();	746	maybe_start_thread ();
610	}	747	}
611		748
612	static void end_thread (void)	749	static void end_thread (void)
…		…
616	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
617		754
618	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
619	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
620		757
621	LOCK (reqlock);	758	X_LOCK (reqlock);
622	reqq_push (&req_queue, req);	759	reqq_push (&req_queue, req);
623	pthread_cond_signal (&reqwait);	760	X_COND_SIGNAL (reqwait);
624	UNLOCK (reqlock);	761	X_UNLOCK (reqlock);
625		762
626	LOCK (wrklock);	763	X_LOCK (wrklock);
627	--started;	764	--started;
628	UNLOCK (wrklock);	765	X_UNLOCK (wrklock);
629	}	766	}
630		767
631	static void set_max_idle (int nthreads)	768	static void set_max_idle (int nthreads)
632	{	769	{
633	if (WORDACCESS_UNSAFE) LOCK (reqlock);	770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
634	max_idle = nthreads <= 0 ? 1 : nthreads;	771	max_idle = nthreads <= 0 ? 1 : nthreads;
635	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
636	}	773	}
637		774
638	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
639	{	776	{
640	if (wanted < nthreads)	777	if (wanted < nthreads)
…		…
648		785
649	while (started > wanted)	786	while (started > wanted)
650	end_thread ();	787	end_thread ();
651	}	788	}
652		789
653	static void poll_wait ()	790	static void poll_wait (void)
654	{	791	{
655	fd_set rfd;	792	fd_set rfd;
656		793
657	while (nreqs)	794	while (nreqs)
658	{	795	{
659	int size;	796	int size;
660	if (WORDACCESS_UNSAFE) LOCK (reslock);	797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
661	size = res_queue.size;	798	size = res_queue.size;
662	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
663		800
664	if (size)	801	if (size)
665	return;	802	return;
666		803
667	maybe_start_thread ();	804	maybe_start_thread ();
668		805
669	FD_ZERO(&rfd);	806	FD_ZERO (&rfd);
670	FD_SET(respipe [0], &rfd);	807	FD_SET (respipe [0], &rfd);
671		808
672	select (respipe [0] + 1, &rfd, 0, 0, 0);	809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
673	}	810	}
674	}	811	}
675		812
676	static int poll_cb ()	813	static int poll_cb (void)
677	{	814	{
678	dSP;	815	dSP;
679	int count = 0;	816	int count = 0;
680	int maxreqs = max_poll_reqs;	817	int maxreqs = max_poll_reqs;
681	int do_croak = 0;	818	int do_croak = 0;
…		…
683	aio_req req;	820	aio_req req;
684		821
685	if (max_poll_time)	822	if (max_poll_time)
686	gettimeofday (&tv_start, 0);	823	gettimeofday (&tv_start, 0);
687		824
		825	block_sig ();
		826
688	for (;;)	827	for (;;)
689	{	828	{
690	for (;;)	829	for (;;)
691	{	830	{
692	maybe_start_thread ();	831	maybe_start_thread ();
693		832
694	LOCK (reslock);	833	X_LOCK (reslock);
695	req = reqq_shift (&res_queue);	834	req = reqq_shift (&res_queue);
696		835
697	if (req)	836	if (req)
698	{	837	{
699	--npending;	838	--npending;
700		839
701	if (!res_queue.size)	840	if (!res_queue.size)
702	{	841	{
703	/* read any signals sent by the worker threads */	842	/* read any signals sent by the worker threads */
704	char buf [32];	843	char buf [4];
705	while (read (respipe [0], buf, 32) == 32)	844	while (respipe_read (respipe [0], buf, 4) == 4)
706	;	845	;
707	}	846	}
708	}	847	}
709		848
710	UNLOCK (reslock);	849	X_UNLOCK (reslock);
711		850
712	if (!req)	851	if (!req)
713	break;	852	break;
714		853
715	--nreqs;	854	--nreqs;
716		855
717	if (req->type == REQ_GROUP && req->length)	856	if (req->type == REQ_GROUP && req->size)
718	{	857	{
719	req->fd = 1; /* mark request as delayed */	858	req->int1 = 1; /* mark request as delayed */
720	continue;	859	continue;
721	}	860	}
722	else	861	else
723	{	862	{
724	if (req->type == REQ_READ)	863	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	{	864	{
732	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	865	req_destroy (req);
733	PL_laststatval = req->result;	866	unblock_sig ();
734	PL_statcache = *(req->statdata);	867	croak (0);
735	}	868	}
736
737	req_invoke (req);
738		869
739	count++;	870	count++;
740	}	871	}
741		872
742	req_free (req);	873	req_destroy (req);
743		874
744	if (maxreqs && !--maxreqs)	875	if (maxreqs && !--maxreqs)
745	break;	876	break;
746		877
747	if (max_poll_time)	878	if (max_poll_time)
…		…
759	poll_wait ();	890	poll_wait ();
760		891
761	++maxreqs;	892	++maxreqs;
762	}	893	}
763		894
		895	unblock_sig ();
764	return count;	896	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	}	897	}
778		898
779	/*****************************************************************************/	899	/*****************************************************************************/
780	/* work around various missing functions */	900	/* work around various missing functions */
781		901
…		…
786	/*	906	/*
787	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
788	* normal read/write by using a mutex. slows down execution a lot,	908	* normal read/write by using a mutex. slows down execution a lot,
789	* but that's your problem, not mine.	909	* but that's your problem, not mine.
790	*/	910	*/
791	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
792		912
793	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	913	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
794	{	914	{
795	ssize_t res;	915	ssize_t res;
796	off_t ooffset;	916	off_t ooffset;
797		917
798	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
799	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
800	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
801	res = read (fd, buf, count);	921	res = read (fd, buf, count);
802	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
803	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
804		924
805	return res;	925	return res;
806	}	926	}
807		927
808	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	928	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
809	{	929	{
810	ssize_t res;	930	ssize_t res;
811	off_t ooffset;	931	off_t ooffset;
812		932
813	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
814	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
815	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
816	res = write (fd, buf, count);	936	res = write (fd, buf, count);
817	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
818	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
819		939
820	return res;	940	return res;
821	}	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
822	#endif	970	#endif
823		971
824	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
825	# define fdatasync fsync	973	# define fdatasync fsync
826	#endif	974	#endif
…		…
828	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
829	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
830		978
831	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	979	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
832	{	980	{
		981	size_t todo = count;
833	dBUF;	982	dBUF;
834		983
835	while (count > 0)	984	while (todo > 0)
836	{	985	{
837	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
838		987
839	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
840	offset += len;	989	offset += len;
841	count -= len;	990	todo -= len;
842	}	991	}
843		992
844	errno = 0;	993	errno = 0;
		994	return count;
845	}	995	}
846		996
847	#endif	997	#endif
848		998
849	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
850	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
851		1001
852	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
853		1003
854	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	1004	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
855	{	1005	{
856	struct dirent *e;	1006	X_DIRENT *e;
857	int errorno;	1007	int errorno;
858		1008
859	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
860		1010
861	e = readdir (dirp);	1011	e = readdir (dirp);
862	errorno = errno;	1012	errorno = errno;
863		1013
864	if (e)	1014	if (e)
…		…
867	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
868	}	1018	}
869	else	1019	else
870	*res = 0;	1020	*res = 0;
871		1021
872	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
873		1023
874	errno = errorno;	1024	errno = errorno;
875	return e ? 0 : -1;	1025	return e ? 0 : -1;
876	}	1026	}
877	#endif	1027	#endif
…		…
973	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
974	{	1124	{
975	DIR *dirp;	1125	DIR *dirp;
976	union	1126	union
977	{	1127	{
978	struct dirent d;	1128	X_DIRENT d;
979	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
980	} *u;	1130	} *u;
981	struct dirent *entp;	1131	X_DIRENT *entp;
982	char *name, *names;	1132	char *name, *names;
983	int memlen = 4096;	1133	int memlen = 4096;
984	int memofs = 0;	1134	int memofs = 0;
985	int res = 0;	1135	int res = 0;
986	int errorno;
987		1136
988	LOCK (wrklock);	1137	X_LOCK (wrklock);
989	self->dirp = dirp = opendir (req->dataptr);	1138	self->dirp = dirp = opendir (req->ptr1);
990	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
		1140	req->flags |= FLAG_PTR2_FREE;
991	req->data2ptr = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
992	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
993		1143
994	if (dirp && u && names)	1144	if (dirp && u && names)
995	for (;;)	1145	for (;;)
996	{	1146	{
997	errno = 0;	1147	errno = 0;
…		…
1009	res++;	1159	res++;
1010		1160
1011	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
1012	{	1162	{
1013	memlen *= 2;	1163	memlen *= 2;
1014	LOCK (wrklock);	1164	X_LOCK (wrklock);
1015	req->data2ptr = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
1016	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
1017		1167
1018	if (!names)	1168	if (!names)
1019	break;	1169	break;
1020	}	1170	}
1021		1171
…		…
1030	req->result = res;	1180	req->result = res;
1031	}	1181	}
1032		1182
1033	/*****************************************************************************/	1183	/*****************************************************************************/
1034		1184
1035	static void *aio_proc (void *thr_arg)	1185	X_THREAD_PROC (aio_proc)
1036	{	1186	{
1037	aio_req req;	1187	aio_req req;
1038	struct timespec ts;	1188	struct timespec ts;
1039	worker *self = (worker *)thr_arg;	1189	worker *self = (worker *)thr_arg;
1040		1190
1041	/* try to distribute timeouts somewhat evenly */	1191	/* try to distribute timeouts somewhat randomly */
1042	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1192	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1043	* (1000000000UL / 1024UL);
1044		1193
1045	for (;;)	1194	for (;;)
1046	{	1195	{
1047	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1196	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1048		1197
1049	LOCK (reqlock);	1198	X_LOCK (reqlock);
1050		1199
1051	for (;;)	1200	for (;;)
1052	{	1201	{
1053	self->req = req = reqq_shift (&req_queue);	1202	self->req = req = reqq_shift (&req_queue);
1054		1203
1055	if (req)	1204	if (req)
1056	break;	1205	break;
1057		1206
1058	++idle;	1207	++idle;
1059		1208
1060	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1209	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1061	== ETIMEDOUT)	1210	== ETIMEDOUT)
1062	{	1211	{
1063	if (idle > max_idle)	1212	if (idle > max_idle)
1064	{	1213	{
1065	--idle;	1214	--idle;
1066	UNLOCK (reqlock);	1215	X_UNLOCK (reqlock);
1067	LOCK (wrklock);	1216	X_LOCK (wrklock);
1068	--started;	1217	--started;
1069	UNLOCK (wrklock);	1218	X_UNLOCK (wrklock);
1070	goto quit;	1219	goto quit;
1071	}	1220	}
1072		1221
1073	/* we are allowed to idle, so do so without any timeout */	1222	/* we are allowed to idle, so do so without any timeout */
1074	pthread_cond_wait (&reqwait, &reqlock);	1223	X_COND_WAIT (reqwait, reqlock);
1075	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1224	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1076	}	1225	}
1077		1226
1078	--idle;	1227	--idle;
1079	}	1228	}
1080		1229
1081	--nready;	1230	--nready;
1082		1231
1083	UNLOCK (reqlock);	1232	X_UNLOCK (reqlock);
1084		1233
1085	errno = 0; /* strictly unnecessary */	1234	errno = 0; /* strictly unnecessary */
1086		1235
1087	if (!(req->flags & FLAG_CANCELLED))	1236	if (!(req->flags & FLAG_CANCELLED))
1088	switch (req->type)	1237	switch (req->type)
1089	{	1238	{
1090	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1239	case REQ_READ: req->result = req->offs >= 0
1091	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1240	? pread (req->int1, req->ptr1, req->size, req->offs)
		1241	: read (req->int1, req->ptr1, req->size); break;
		1242	case REQ_WRITE: req->result = req->offs >= 0
		1243	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1244	: write (req->int1, req->ptr1, req->size); break;
1092		1245
1093	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1246	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;	1247	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1095		1248
1096	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1249	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;	1250	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;	1251	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1099		1252
		1253	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1254	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1255	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1256	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1257	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1258	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1259
1100	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1260	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1101	case REQ_CLOSE: req->result = close (req->fd); break;	1261	case REQ_CLOSE: req->result = close (req->int1); break;
1102	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1262	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1103	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1263	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1264	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1104	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1265	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1105	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1266	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1106	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1267	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;	1268	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1269	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1108		1270
1109	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1271	case REQ_SYNC: req->result = 0; sync (); break;
1110	case REQ_FSYNC: req->result = fsync (req->fd); break;	1272	case REQ_FSYNC: req->result = fsync (req->int1); break;
		1273	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
		1274
1111	case REQ_READDIR: scandir_ (req, self); break;	1275	case REQ_READDIR: scandir_ (req, self); break;
1112		1276
1113	case REQ_BUSY:	1277	case REQ_BUSY:
		1278	#ifdef _WIN32
		1279	Sleep (req->nv1 * 1000.);
		1280	#else
1114	{	1281	{
1115	struct timeval tv;	1282	struct timeval tv;
1116		1283
1117	tv.tv_sec = req->fd;	1284	tv.tv_sec = req->nv1;
1118	tv.tv_usec = req->fd2;	1285	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1119		1286
1120	req->result = select (0, 0, 0, 0, &tv);	1287	req->result = select (0, 0, 0, 0, &tv);
		1288	}
		1289	#endif
		1290	break;
		1291
		1292	case REQ_UTIME:
		1293	case REQ_FUTIME:
		1294	{
		1295	struct timeval tv[2];
		1296	struct timeval *times;
		1297
		1298	if (req->nv1 != -1. || req->nv2 != -1.)
		1299	{
		1300	tv[0].tv_sec = req->nv1;
		1301	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1302	tv[1].tv_sec = req->nv2;
		1303	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1304
		1305	times = tv;
		1306	}
		1307	else
		1308	times = 0;
		1309
		1310
		1311	req->result = req->type == REQ_FUTIME
		1312	? futimes (req->int1, times)
		1313	: utimes (req->ptr1, times);
1121	}	1314	}
1122		1315
1123	case REQ_GROUP:	1316	case REQ_GROUP:
1124	case REQ_NOP:	1317	case REQ_NOP:
1125	break;	1318	break;
1126		1319
1127	case REQ_QUIT:	1320	case REQ_QUIT:
1128	goto quit;	1321	goto quit;
1129		1322
1130	default:	1323	default:
1131	req->result = ENOSYS;	1324	req->result = -1;
1132	break;	1325	break;
1133	}	1326	}
1134		1327
1135	req->errorno = errno;	1328	req->errorno = errno;
1136		1329
1137	LOCK (reslock);	1330	X_LOCK (reslock);
1138		1331
1139	++npending;	1332	++npending;
1140		1333
1141	if (!reqq_push (&res_queue, req))	1334	if (!reqq_push (&res_queue, req))
		1335	{
1142	/* write a dummy byte to the pipe so fh becomes ready */	1336	/* write a dummy byte to the pipe so fh becomes ready */
1143	write (respipe [1], &respipe, 1);	1337	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1338
		1339	/* optionally signal the main thread asynchronously */
		1340	if (main_sig)
		1341	pthread_kill (main_tid, main_sig);
		1342	}
1144		1343
1145	self->req = 0;	1344	self->req = 0;
1146	worker_clear (self);	1345	worker_clear (self);
1147		1346
1148	UNLOCK (reslock);	1347	X_UNLOCK (reslock);
1149	}	1348	}
1150		1349
1151	quit:	1350	quit:
1152	LOCK (wrklock);	1351	X_LOCK (wrklock);
1153	worker_free (self);	1352	worker_free (self);
1154	UNLOCK (wrklock);	1353	X_UNLOCK (wrklock);
1155		1354
1156	return 0;	1355	return 0;
1157	}	1356	}
1158		1357
1159	/*****************************************************************************/	1358	/*****************************************************************************/
1160		1359
1161	static void atfork_prepare (void)	1360	static void atfork_prepare (void)
1162	{	1361	{
1163	LOCK (wrklock);	1362	X_LOCK (wrklock);
1164	LOCK (reqlock);	1363	X_LOCK (reqlock);
1165	LOCK (reslock);	1364	X_LOCK (reslock);
1166	#if !HAVE_PREADWRITE	1365	#if !HAVE_PREADWRITE
1167	LOCK (preadwritelock);	1366	X_LOCK (preadwritelock);
1168	#endif	1367	#endif
1169	#if !HAVE_READDIR_R	1368	#if !HAVE_READDIR_R
1170	LOCK (readdirlock);	1369	X_LOCK (readdirlock);
1171	#endif	1370	#endif
1172	}	1371	}
1173		1372
1174	static void atfork_parent (void)	1373	static void atfork_parent (void)
1175	{	1374	{
1176	#if !HAVE_READDIR_R	1375	#if !HAVE_READDIR_R
1177	UNLOCK (readdirlock);	1376	X_UNLOCK (readdirlock);
1178	#endif	1377	#endif
1179	#if !HAVE_PREADWRITE	1378	#if !HAVE_PREADWRITE
1180	UNLOCK (preadwritelock);	1379	X_UNLOCK (preadwritelock);
1181	#endif	1380	#endif
1182	UNLOCK (reslock);	1381	X_UNLOCK (reslock);
1183	UNLOCK (reqlock);	1382	X_UNLOCK (reqlock);
1184	UNLOCK (wrklock);	1383	X_UNLOCK (wrklock);
1185	}	1384	}
1186		1385
1187	static void atfork_child (void)	1386	static void atfork_child (void)
1188	{	1387	{
1189	aio_req prv;	1388	aio_req prv;
1190		1389
1191	while (prv = reqq_shift (&req_queue))	1390	while (prv = reqq_shift (&req_queue))
1192	req_free (prv);	1391	req_destroy (prv);
1193		1392
1194	while (prv = reqq_shift (&res_queue))	1393	while (prv = reqq_shift (&res_queue))
1195	req_free (prv);	1394	req_destroy (prv);
1196		1395
1197	while (wrk_first.next != &wrk_first)	1396	while (wrk_first.next != &wrk_first)
1198	{	1397	{
1199	worker *wrk = wrk_first.next;	1398	worker *wrk = wrk_first.next;
1200		1399
1201	if (wrk->req)	1400	if (wrk->req)
1202	req_free (wrk->req);	1401	req_destroy (wrk->req);
1203		1402
1204	worker_clear (wrk);	1403	worker_clear (wrk);
1205	worker_free (wrk);	1404	worker_free (wrk);
1206	}	1405	}
1207		1406
…		…
1209	idle = 0;	1408	idle = 0;
1210	nreqs = 0;	1409	nreqs = 0;
1211	nready = 0;	1410	nready = 0;
1212	npending = 0;	1411	npending = 0;
1213		1412
1214	close (respipe [0]);
1215	close (respipe [1]);
1216	create_pipe ();	1413	create_respipe ();
1217		1414
1218	atfork_parent ();	1415	atfork_parent ();
1219	}	1416	}
1220		1417
1221	#define dREQ \	1418	#define dREQ \
…		…
1243		1440
1244	PROTOTYPES: ENABLE	1441	PROTOTYPES: ENABLE
1245		1442
1246	BOOT:	1443	BOOT:
1247	{	1444	{
1248	HV *stash = gv_stashpv ("IO::AIO", 1);	1445	stash = gv_stashpv ("IO::AIO", 1);
1249		1446
1250	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1251	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1252	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1253	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1254	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1452	#ifdef _WIN32
		1453	X_MUTEX_CHECK (wrklock);
		1454	X_MUTEX_CHECK (reslock);
		1455	X_MUTEX_CHECK (reqlock);
		1456	X_MUTEX_CHECK (reqwait);
		1457	X_MUTEX_CHECK (preadwritelock);
		1458	X_MUTEX_CHECK (readdirlock);
		1459
		1460	X_COND_CHECK (reqwait);
		1461	#else
1255	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1463	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1464	#endif
1256		1465
1257	create_pipe ();	1466	create_respipe ();
		1467
1258	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1468	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1259	}	1469	}
1260		1470
1261	void	1471	void
1262	max_poll_reqs (int nreqs)	1472	max_poll_reqs (int nreqs)
1263	PROTOTYPE: $	1473	PROTOTYPE: $
…		…
1292	max_outstanding = maxreqs;	1502	max_outstanding = maxreqs;
1293	OUTPUT:	1503	OUTPUT:
1294	RETVAL	1504	RETVAL
1295		1505
1296	void	1506	void
1297	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1507	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: $$$;$	1508	PROTOTYPE: $$$;$
1303	PPCODE:	1509	PPCODE:
1304	{	1510	{
1305	dREQ;	1511	dREQ;
1306		1512
1307	req->type = REQ_OPEN;	1513	req->type = REQ_OPEN;
1308	req->data = newSVsv (pathname);	1514	req->sv1 = newSVsv (pathname);
1309	req->dataptr = SvPVbyte_nolen (req->data);	1515	req->ptr1 = SvPVbyte_nolen (req->sv1);
1310	req->fd = flags;	1516	req->int1 = flags;
1311	req->mode = mode;	1517	req->mode = mode;
1312		1518
1313	REQ_SEND;	1519	REQ_SEND;
1314	}	1520	}
1315		1521
1316	void	1522	void
1317	aio_close (fh,callback=&PL_sv_undef)	1523	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1318	SV * fh
1319	SV * callback
1320	PROTOTYPE: $;$	1524	PROTOTYPE: $;$
1321	ALIAS:	1525	ALIAS:
1322	aio_close = REQ_CLOSE
1323	aio_fsync = REQ_FSYNC	1526	aio_fsync = REQ_FSYNC
1324	aio_fdatasync = REQ_FDATASYNC	1527	aio_fdatasync = REQ_FDATASYNC
1325	PPCODE:	1528	PPCODE:
1326	{	1529	{
1327	dREQ;	1530	dREQ;
1328		1531
1329	req->type = ix;	1532	req->type = ix;
1330	req->fh = newSVsv (fh);	1533	req->sv1 = newSVsv (fh);
1331	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1534	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1332		1535
1333	REQ_SEND (req);	1536	REQ_SEND (req);
1334	}	1537	}
1335		1538
		1539	int
		1540	_dup (int fd)
		1541	PROTOTYPE: $
		1542	CODE:
		1543	RETVAL = dup (fd);
		1544	OUTPUT:
		1545	RETVAL
		1546
1336	void	1547	void
		1548	_aio_close (int fd, SV *callback=&PL_sv_undef)
		1549	PROTOTYPE: $;$
		1550	PPCODE:
		1551	{
		1552	dREQ;
		1553
		1554	req->type = REQ_CLOSE;
		1555	req->int1 = fd;
		1556
		1557	REQ_SEND (req);
		1558	}
		1559
		1560	void
1337	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1561	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:	1562	ALIAS:
1345	aio_read = REQ_READ	1563	aio_read = REQ_READ
1346	aio_write = REQ_WRITE	1564	aio_write = REQ_WRITE
1347	PROTOTYPE: $$$$$;$	1565	PROTOTYPE: $$$$$;$
1348	PPCODE:	1566	PPCODE:
1349	{	1567	{
1350	aio_req req;
1351	STRLEN svlen;	1568	STRLEN svlen;
1352	char *svptr = SvPVbyte (data, svlen);	1569	char *svptr = SvPVbyte (data, svlen);
		1570	UV len = SvUV (length);
1353		1571
1354	SvUPGRADE (data, SVt_PV);	1572	SvUPGRADE (data, SVt_PV);
1355	SvPOK_on (data);	1573	SvPOK_on (data);
1356		1574
1357	if (dataoffset < 0)	1575	if (dataoffset < 0)
1358	dataoffset += svlen;	1576	dataoffset += svlen;
1359		1577
1360	if (dataoffset < 0 || dataoffset > svlen)	1578	if (dataoffset < 0 || dataoffset > svlen)
1361	croak ("data offset outside of string");	1579	croak ("dataoffset outside of data scalar");
1362		1580
1363	if (ix == REQ_WRITE)	1581	if (ix == REQ_WRITE)
1364	{	1582	{
1365	/* write: check length and adjust. */	1583	/* write: check length and adjust. */
1366	if (length < 0 || length + dataoffset > svlen)	1584	if (!SvOK (length) || len + dataoffset > svlen)
1367	length = svlen - dataoffset;	1585	len = svlen - dataoffset;
1368	}	1586	}
1369	else	1587	else
1370	{	1588	{
1371	/* read: grow scalar as necessary */	1589	/* read: grow scalar as necessary */
1372	svptr = SvGROW (data, length + dataoffset);	1590	svptr = SvGROW (data, len + dataoffset + 1);
1373	}	1591	}
1374		1592
1375	if (length < 0)	1593	if (len < 0)
1376	croak ("length must not be negative");	1594	croak ("length must not be negative");
1377		1595
1378	{	1596	{
1379	dREQ;	1597	dREQ;
1380		1598
1381	req->type = ix;	1599	req->type = ix;
1382	req->fh = newSVsv (fh);	1600	req->sv1 = newSVsv (fh);
1383	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1601	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1384	: IoOFP (sv_2io (fh)));	1602	: IoOFP (sv_2io (fh)));
		1603	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1385	req->offset = offset;	1604	req->size = len;
1386	req->length = length;
1387	req->data = SvREFCNT_inc (data);	1605	req->sv2 = SvREFCNT_inc (data);
1388	req->dataptr = (char *)svptr + dataoffset;	1606	req->ptr1 = (char *)svptr + dataoffset;
		1607	req->stroffset = dataoffset;
1389		1608
1390	if (!SvREADONLY (data))	1609	if (!SvREADONLY (data))
1391	{	1610	{
1392	SvREADONLY_on (data);	1611	SvREADONLY_on (data);
1393	req->data2ptr = (void *)data;	1612	req->flags |= FLAG_SV2_RO_OFF;
1394	}	1613	}
1395		1614
1396	REQ_SEND;	1615	REQ_SEND;
1397	}	1616	}
1398	}	1617	}
1399		1618
1400	void	1619	void
		1620	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1621	PROTOTYPE: $$;$
		1622	PPCODE:
		1623	{
		1624	SV *data;
		1625	dREQ;
		1626
		1627	data = newSV (NAME_MAX);
		1628	SvPOK_on (data);
		1629
		1630	req->type = REQ_READLINK;
		1631	req->sv1 = newSVsv (path);
		1632	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1633	req->sv2 = data;
		1634	req->ptr1 = SvPVbyte_nolen (data);
		1635
		1636	REQ_SEND;
		1637	}
		1638
		1639	void
1401	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1640	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: $$$$;$	1641	PROTOTYPE: $$$$;$
1408	PPCODE:	1642	PPCODE:
1409	{	1643	{
1410	dREQ;	1644	dREQ;
1411		1645
1412	req->type = REQ_SENDFILE;	1646	req->type = REQ_SENDFILE;
1413	req->fh = newSVsv (out_fh);	1647	req->sv1 = newSVsv (out_fh);
1414	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1648	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1415	req->fh2 = newSVsv (in_fh);	1649	req->sv2 = newSVsv (in_fh);
1416	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1650	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1417	req->offset = in_offset;	1651	req->offs = SvVAL64 (in_offset);
1418	req->length = length;	1652	req->size = length;
1419		1653
1420	REQ_SEND;	1654	REQ_SEND;
1421	}	1655	}
1422		1656
1423	void	1657	void
1424	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1658	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1425	SV * fh
1426	UV offset
1427	IV length
1428	SV * callback
1429	PROTOTYPE: $$$;$	1659	PROTOTYPE: $$$;$
1430	PPCODE:	1660	PPCODE:
1431	{	1661	{
1432	dREQ;	1662	dREQ;
1433		1663
1434	req->type = REQ_READAHEAD;	1664	req->type = REQ_READAHEAD;
1435	req->fh = newSVsv (fh);	1665	req->sv1 = newSVsv (fh);
1436	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1666	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1437	req->offset = offset;	1667	req->offs = SvVAL64 (offset);
1438	req->length = length;	1668	req->size = length;
1439		1669
1440	REQ_SEND;	1670	REQ_SEND;
1441	}	1671	}
1442		1672
1443	void	1673	void
1444	aio_stat (fh_or_path,callback=&PL_sv_undef)	1674	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1445	SV * fh_or_path
1446	SV * callback
1447	ALIAS:	1675	ALIAS:
1448	aio_stat = REQ_STAT	1676	aio_stat = REQ_STAT
1449	aio_lstat = REQ_LSTAT	1677	aio_lstat = REQ_LSTAT
1450	PPCODE:	1678	PPCODE:
1451	{	1679	{
1452	dREQ;	1680	dREQ;
1453		1681
1454	New (0, req->statdata, 1, Stat_t);	1682	req->ptr2 = malloc (sizeof (Stat_t));
1455	if (!req->statdata)	1683	if (!req->ptr2)
1456	{	1684	{
1457	req_free (req);	1685	req_destroy (req);
1458	croak ("out of memory during aio_req->statdata allocation");	1686	croak ("out of memory during aio_stat statdata allocation");
1459	}	1687	}
		1688
		1689	req->flags |= FLAG_PTR2_FREE;
		1690	req->sv1 = newSVsv (fh_or_path);
1460		1691
1461	if (SvPOK (fh_or_path))	1692	if (SvPOK (fh_or_path))
1462	{	1693	{
1463	req->type = ix;	1694	req->type = ix;
1464	req->data = newSVsv (fh_or_path);
1465	req->dataptr = SvPVbyte_nolen (req->data);	1695	req->ptr1 = SvPVbyte_nolen (req->sv1);
1466	}	1696	}
1467	else	1697	else
1468	{	1698	{
1469	req->type = REQ_FSTAT;	1699	req->type = REQ_FSTAT;
1470	req->fh = newSVsv (fh_or_path);
1471	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1472	}	1701	}
1473		1702
1474	REQ_SEND;	1703	REQ_SEND;
1475	}	1704	}
1476		1705
1477	void	1706	void
		1707	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1708	PPCODE:
		1709	{
		1710	dREQ;
		1711
		1712	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1713	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1714	req->sv1 = newSVsv (fh_or_path);
		1715
		1716	if (SvPOK (fh_or_path))
		1717	{
		1718	req->type = REQ_UTIME;
		1719	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1720	}
		1721	else
		1722	{
		1723	req->type = REQ_FUTIME;
		1724	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1725	}
		1726
		1727	REQ_SEND;
		1728	}
		1729
		1730	void
		1731	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	dREQ;
		1735
		1736	req->sv1 = newSVsv (fh_or_path);
		1737	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1738
		1739	if (SvPOK (fh_or_path))
		1740	{
		1741	req->type = REQ_TRUNCATE;
		1742	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1743	}
		1744	else
		1745	{
		1746	req->type = REQ_FTRUNCATE;
		1747	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1748	}
		1749
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
		1754	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1755	PPCODE:
		1756	{
		1757	dREQ;
		1758
		1759	req->mode = mode;
		1760	req->sv1 = newSVsv (fh_or_path);
		1761
		1762	if (SvPOK (fh_or_path))
		1763	{
		1764	req->type = REQ_CHMOD;
		1765	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1766	}
		1767	else
		1768	{
		1769	req->type = REQ_FCHMOD;
		1770	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1771	}
		1772
		1773	REQ_SEND;
		1774	}
		1775
		1776	void
		1777	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1778	PPCODE:
		1779	{
		1780	dREQ;
		1781
		1782	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1783	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1784	req->sv1 = newSVsv (fh_or_path);
		1785
		1786	if (SvPOK (fh_or_path))
		1787	{
		1788	req->type = REQ_CHOWN;
		1789	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1790	}
		1791	else
		1792	{
		1793	req->type = REQ_FCHOWN;
		1794	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1795	}
		1796
		1797	REQ_SEND;
		1798	}
		1799
		1800	void
1478	aio_unlink (pathname,callback=&PL_sv_undef)	1801	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1479	SV * pathname
1480	SV * callback
1481	ALIAS:	1802	ALIAS:
1482	aio_unlink = REQ_UNLINK	1803	aio_unlink = REQ_UNLINK
1483	aio_rmdir = REQ_RMDIR	1804	aio_rmdir = REQ_RMDIR
1484	aio_readdir = REQ_READDIR	1805	aio_readdir = REQ_READDIR
1485	PPCODE:	1806	PPCODE:
1486	{	1807	{
1487	dREQ;	1808	dREQ;
1488		1809
1489	req->type = ix;	1810	req->type = ix;
1490	req->data = newSVsv (pathname);	1811	req->sv1 = newSVsv (pathname);
1491	req->dataptr = SvPVbyte_nolen (req->data);	1812	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1813
		1814	REQ_SEND;
		1815	}
		1816
		1817	void
		1818	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1819	PPCODE:
		1820	{
		1821	dREQ;
1492		1822
		1823	req->type = REQ_MKDIR;
		1824	req->sv1 = newSVsv (pathname);
		1825	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1826	req->mode = mode;
		1827
1493	REQ_SEND;	1828	REQ_SEND;
1494	}	1829	}
1495		1830
1496	void	1831	void
1497	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1832	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1498	SV * oldpath
1499	SV * newpath
1500	SV * callback
1501	ALIAS:	1833	ALIAS:
1502	aio_link = REQ_LINK	1834	aio_link = REQ_LINK
1503	aio_symlink = REQ_SYMLINK	1835	aio_symlink = REQ_SYMLINK
1504	aio_rename = REQ_RENAME	1836	aio_rename = REQ_RENAME
1505	PPCODE:	1837	PPCODE:
1506	{	1838	{
1507	dREQ;	1839	dREQ;
1508		1840
1509	req->type = ix;	1841	req->type = ix;
1510	req->fh = newSVsv (oldpath);	1842	req->sv2 = newSVsv (oldpath);
1511	req->data2ptr = SvPVbyte_nolen (req->fh);	1843	req->ptr2 = SvPVbyte_nolen (req->sv2);
1512	req->data = newSVsv (newpath);	1844	req->sv1 = newSVsv (newpath);
1513	req->dataptr = SvPVbyte_nolen (req->data);	1845	req->ptr1 = SvPVbyte_nolen (req->sv1);
1514		1846
1515	REQ_SEND;	1847	REQ_SEND;
1516	}	1848	}
1517		1849
1518	void	1850	void
1519	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1851	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:	1852	PPCODE:
1525	{	1853	{
1526	dREQ;	1854	dREQ;
1527		1855
1528	req->type = REQ_MKNOD;	1856	req->type = REQ_MKNOD;
1529	req->data = newSVsv (pathname);	1857	req->sv1 = newSVsv (pathname);
1530	req->dataptr = SvPVbyte_nolen (req->data);	1858	req->ptr1 = SvPVbyte_nolen (req->sv1);
1531	req->mode = (mode_t)mode;	1859	req->mode = (mode_t)mode;
1532	req->offset = dev;	1860	req->offs = dev;
1533		1861
1534	REQ_SEND;	1862	REQ_SEND;
1535	}	1863	}
1536		1864
1537	void	1865	void
1538	aio_busy (delay,callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback=&PL_sv_undef)
1539	double delay
1540	SV * callback
1541	PPCODE:	1867	PPCODE:
1542	{	1868	{
1543	dREQ;	1869	dREQ;
1544		1870
1545	req->type = REQ_BUSY;	1871	req->type = REQ_BUSY;
1546	req->fd = delay < 0. ? 0 : delay;	1872	req->nv1 = delay < 0. ? 0. : delay;
1547	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1548		1873
1549	REQ_SEND;	1874	REQ_SEND;
1550	}	1875	}
1551		1876
1552	void	1877	void
1553	aio_group (callback=&PL_sv_undef)	1878	aio_group (SV *callback=&PL_sv_undef)
1554	SV * callback
1555	PROTOTYPE: ;$	1879	PROTOTYPE: ;$
1556	PPCODE:	1880	PPCODE:
1557	{	1881	{
1558	dREQ;	1882	dREQ;
1559		1883
1560	req->type = REQ_GROUP;	1884	req->type = REQ_GROUP;
		1885
1561	req_send (req);	1886	req_send (req);
1562
1563	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1887	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1564	}	1888	}
1565		1889
1566	void	1890	void
1567	aio_nop (callback=&PL_sv_undef)	1891	aio_nop (SV *callback=&PL_sv_undef)
1568	SV * callback	1892	ALIAS:
		1893	aio_nop = REQ_NOP
		1894	aio_sync = REQ_SYNC
1569	PPCODE:	1895	PPCODE:
1570	{	1896	{
1571	dREQ;	1897	dREQ;
1572		1898
1573	req->type = REQ_NOP;	1899	req->type = ix;
1574		1900
1575	REQ_SEND;	1901	REQ_SEND;
1576	}	1902	}
1577		1903
1578	int	1904	int
…		…
1602	PROTOTYPE:	1928	PROTOTYPE:
1603	CODE:	1929	CODE:
1604	while (nreqs)	1930	while (nreqs)
1605	{	1931	{
1606	poll_wait ();	1932	poll_wait ();
1607	poll_cb (0);	1933	poll_cb ();
1608	}	1934	}
1609		1935
1610	void	1936	int
1611	poll()	1937	poll()
1612	PROTOTYPE:	1938	PROTOTYPE:
1613	CODE:	1939	CODE:
1614	if (nreqs)
1615	{
1616	poll_wait ();	1940	poll_wait ();
1617	poll_cb (0);	1941	RETVAL = poll_cb ();
1618	}	1942	OUTPUT:
		1943	RETVAL
1619		1944
1620	int	1945	int
1621	poll_fileno()	1946	poll_fileno()
1622	PROTOTYPE:	1947	PROTOTYPE:
1623	CODE:	1948	CODE:
…		…
1635		1960
1636	void	1961	void
1637	poll_wait()	1962	poll_wait()
1638	PROTOTYPE:	1963	PROTOTYPE:
1639	CODE:	1964	CODE:
1640	if (nreqs)
1641	poll_wait ();	1965	poll_wait ();
		1966
		1967	void
		1968	setsig (int signum = SIGIO)
		1969	PROTOTYPE: ;$
		1970	CODE:
		1971	{
		1972	if (block_sig_level)
		1973	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1974
		1975	X_LOCK (reslock);
		1976	main_tid = pthread_self ();
		1977	main_sig = signum;
		1978	X_UNLOCK (reslock);
		1979
		1980	if (main_sig && npending)
		1981	pthread_kill (main_tid, main_sig);
		1982	}
		1983
		1984	void
		1985	aio_block (SV *cb)
		1986	PROTOTYPE: &
		1987	PPCODE:
		1988	{
		1989	int count;
		1990
		1991	block_sig ();
		1992	PUSHMARK (SP);
		1993	PUTBACK;
		1994	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1995	unblock_sig ();
		1996
		1997	if (SvTRUE (ERRSV))
		1998	croak (0);
		1999
		2000	XSRETURN (count);
		2001	}
1642		2002
1643	int	2003	int
1644	nreqs()	2004	nreqs()
1645	PROTOTYPE:	2005	PROTOTYPE:
1646	CODE:	2006	CODE:
…		…
1666		2026
1667	int	2027	int
1668	nthreads()	2028	nthreads()
1669	PROTOTYPE:	2029	PROTOTYPE:
1670	CODE:	2030	CODE:
1671	if (WORDACCESS_UNSAFE) LOCK (wrklock);	2031	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1672	RETVAL = started;	2032	RETVAL = started;
1673	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	2033	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1674	OUTPUT:	2034	OUTPUT:
1675	RETVAL	2035	RETVAL
1676		2036
1677	PROTOTYPES: DISABLE	2037	PROTOTYPES: DISABLE
1678		2038
…		…
1696	PPCODE:	2056	PPCODE:
1697	{	2057	{
1698	int i;	2058	int i;
1699	aio_req req;	2059	aio_req req;
1700		2060
		2061	if (main_sig && !block_sig_level)
		2062	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2063
1701	if (grp->fd == 2)	2064	if (grp->int1 == 2)
1702	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2065	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1703		2066
1704	for (i = 1; i < items; ++i )	2067	for (i = 1; i < items; ++i )
1705	{	2068	{
1706	if (GIMME_V != G_VOID)	2069	if (GIMME_V != G_VOID)
…		…
1708		2071
1709	req = SvAIO_REQ (ST (i));	2072	req = SvAIO_REQ (ST (i));
1710		2073
1711	if (req)	2074	if (req)
1712	{	2075	{
1713	++grp->length;	2076	++grp->size;
1714	req->grp = grp;	2077	req->grp = grp;
1715		2078
1716	req->grp_prev = 0;	2079	req->grp_prev = 0;
1717	req->grp_next = grp->grp_first;	2080	req->grp_next = grp->grp_first;
1718		2081
…		…
1741	av = newAV ();	2104	av = newAV ();
1742		2105
1743	for (i = 1; i < items; ++i )	2106	for (i = 1; i < items; ++i )
1744	av_push (av, newSVsv (ST (i)));	2107	av_push (av, newSVsv (ST (i)));
1745		2108
1746	SvREFCNT_dec (grp->data);	2109	SvREFCNT_dec (grp->sv1);
1747	grp->data = (SV *)av;	2110	grp->sv1 = (SV *)av;
1748	}	2111	}
1749		2112
1750	void	2113	void
1751	errno (aio_req grp, int errorno = errno)	2114	errno (aio_req grp, int errorno = errno)
1752	CODE:	2115	CODE:
1753	grp->errorno = errorno;	2116	grp->errorno = errorno;
1754		2117
1755	void	2118	void
1756	limit (aio_req grp, int limit)	2119	limit (aio_req grp, int limit)
1757	CODE:	2120	CODE:
1758	grp->fd2 = limit;	2121	grp->int2 = limit;
1759	aio_grp_feed (grp);	2122	aio_grp_feed (grp);
1760		2123
1761	void	2124	void
1762	feed (aio_req grp, SV *callback=&PL_sv_undef)	2125	feed (aio_req grp, SV *callback=&PL_sv_undef)
1763	CODE:	2126	CODE:
1764	{	2127	{
1765	SvREFCNT_dec (grp->fh2);	2128	SvREFCNT_dec (grp->sv2);
1766	grp->fh2 = newSVsv (callback);	2129	grp->sv2 = newSVsv (callback);
1767		2130
1768	if (grp->fd2 <= 0)	2131	if (grp->int2 <= 0)
1769	grp->fd2 = 2;	2132	grp->int2 = 2;
1770		2133
1771	aio_grp_feed (grp);	2134	aio_grp_feed (grp);
1772	}	2135	}
1773		2136

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