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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.79 by root, Thu Oct 26 16:28:33 2006 UTC vs.
Revision 1.109 by root, Sat Oct 6 14:05:19 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 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
…		…
43	# else	79	# else
44	# error sendfile support requested but not available	80	# error sendfile support requested but not available
45	# endif	81	# endif
46	#endif	82	#endif
47		83
		84	/* number of seconds after which idle threads exit */
		85	#define IDLE_TIMEOUT 10
		86
48	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
49	#ifndef NAME_MAX	88	#ifndef NAME_MAX
50	# define NAME_MAX 4096	89	# define NAME_MAX 4096
51	#endif	90	#endif
52		91
53	#ifndef PTHREAD_STACK_MIN
54	/* care for broken platforms, e.g. windows */
55	# define PTHREAD_STACK_MIN 16384
56	#endif
57
58	#if __ia64
59	# define STACKSIZE 65536
60	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61	# define STACKSIZE PTHREAD_STACK_MIN
62	#else
63	# define STACKSIZE 16384
64	#endif
65
66	/* wether word reads are potentially non-atomic.
67	* this is conservatice, likely most arches this runs
68	* on have atomic word read/writes.
69	*/
70	#ifndef WORDREAD_UNSAFE
71	# if __i386 || __x86_64
72	# define WORDREAD_UNSAFE 0
73	# else
74	# define WORDREAD_UNSAFE 1
75	# endif
76	#endif
77
78	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
79	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
80		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
81	#define dBUF \	104	#define dBUF \
82	char *aio_buf; \	105	char *aio_buf; \
83	LOCK (wrklock); \	106	X_LOCK (wrklock); \
84	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
86	if (!aio_buf) \	109	if (!aio_buf) \
87	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
88		113
89	enum {	114	enum {
90	REQ_QUIT,	115	REQ_QUIT,
91	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
92	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
93	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
94	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,
95	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_FSYNC, REQ_FDATASYNC,
96	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
97	REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
98	REQ_LINK, REQ_SYMLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
99	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
100	REQ_BUSY,	129	REQ_BUSY,
101	};	130	};
102		131
103	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
105		134
106	typedef struct aio_cb	135	typedef struct aio_cb
107	{	136	{
108	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
109		138
110	SV *data, *callback;	139	SV *callback;
111	SV *fh, *fh2;	140	SV *sv1, *sv2;
112	void *dataptr, *data2ptr;	141	void *ptr1, *ptr2;
113	Stat_t *statdata;
114	off_t offset;	142	off_t offs;
115	size_t length;	143	size_t size;
116	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
117		146
118	STRLEN dataoffset;	147	STRLEN stroffset;
119	int type;	148	int type;
120	int fd, fd2;	149	int int1, int2, int3;
121	int errorno;	150	int errorno;
122	mode_t mode; /* open */	151	mode_t mode; /* open */
123		152
124	unsigned char flags;	153	unsigned char flags;
125	unsigned char pri;	154	unsigned char pri;
…		…
127	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
128	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129	} aio_cb;	158	} aio_cb;
130		159
131	enum {	160	enum {
132	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) */
133	};	164	};
134		165
135	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
136	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
137		168
…		…
142	DEFAULT_PRI = 0,	173	DEFAULT_PRI = 0,
143	PRI_BIAS = -PRI_MIN,	174	PRI_BIAS = -PRI_MIN,
144	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	175	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145	};	176	};
146		177
		178	#define AIO_TICKS ((1000000 + 1023) >> 10)
		179
		180	static unsigned int max_poll_time = 0;
		181	static unsigned int max_poll_reqs = 0;
		182
		183	/* calculcate time difference in ~1/AIO_TICKS of a second */
		184	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		185	{
		186	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		187	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		188	}
		189
		190	static thread_t main_tid;
		191	static int main_sig;
		192	static int block_sig_level;
		193
		194	void block_sig ()
		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 ()
		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
147	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
148		225
149	static unsigned int started, wanted;	226	static unsigned int started, idle, wanted;
150	static volatile unsigned int nreqs, nready, npending;
151	static volatile unsigned int max_outstanding = 0xffffffff;
152	static int respipe [2];
153
154	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
155	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
156	#else
157	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
158	#endif
159
160	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
161	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
162		227
163	/* worker threads management */	228	/* worker threads management */
164	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
165		230
166	typedef struct worker {	231	typedef struct worker {
167	/* locked by wrklock */	232	/* locked by wrklock */
168	struct worker *prev, *next;	233	struct worker *prev, *next;
169		234
170	pthread_t tid;	235	thread_t tid;
171		236
172	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
173	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
174	void *dbuf;	239	void *dbuf;
175	DIR *dirp;	240	DIR *dirp;
…		…
198	wrk->prev->next = wrk->next;	263	wrk->prev->next = wrk->next;
199		264
200	free (wrk);	265	free (wrk);
201	}	266	}
202		267
		268	static volatile unsigned int nreqs, nready, npending;
		269	static volatile unsigned int max_idle = 4;
		270	static volatile unsigned int max_outstanding = 0xffffffff;
		271	static int respipe_osf [2], respipe [2] = { -1, -1 };
		272
203	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
204	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
205	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
		276
		277	#if WORDACCESS_UNSAFE
		278
		279	static unsigned int get_nready ()
		280	{
		281	unsigned int retval;
		282
		283	X_LOCK (reqlock);
		284	retval = nready;
		285	X_UNLOCK (reqlock);
		286
		287	return retval;
		288	}
		289
		290	static unsigned int get_npending ()
		291	{
		292	unsigned int retval;
		293
		294	X_LOCK (reslock);
		295	retval = npending;
		296	X_UNLOCK (reslock);
		297
		298	return retval;
		299	}
		300
		301	static unsigned int get_nthreads ()
		302	{
		303	unsigned int retval;
		304
		305	X_LOCK (wrklock);
		306	retval = started;
		307	X_UNLOCK (wrklock);
		308
		309	return retval;
		310	}
		311
		312	#else
		313
		314	# define get_nready() nready
		315	# define get_npending() npending
		316	# define get_nthreads() started
		317
		318	#endif
206		319
207	/*	320	/*
208	* a somewhat faster data structure might be nice, but	321	* a somewhat faster data structure might be nice, but
209	* with 8 priorities this actually needs <20 insns	322	* with 8 priorities this actually needs <20 insns
210	* per shift, the most expensive operation.	323	* per shift, the most expensive operation.
…		…
256	}	369	}
257		370
258	abort ();	371	abort ();
259	}	372	}
260		373
261	static int poll_cb (int max);	374	static int poll_cb ();
262	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
263	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
264	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
265		378
266	/* must be called at most once */	379	/* must be called at most once */
267	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
268	{	381	{
…		…
287	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
288	}	401	}
289		402
290	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
291	{	404	{
		405	block_sig ();
		406
292	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
293	{	408	{
294	int old_len = grp->length;	409	int old_len = grp->size;
295		410
296	if (grp->fh2 && SvOK (grp->fh2))	411	if (grp->sv2 && SvOK (grp->sv2))
297	{	412	{
298	dSP;	413	dSP;
299		414
300	ENTER;	415	ENTER;
301	SAVETMPS;	416	SAVETMPS;
302	PUSHMARK (SP);	417	PUSHMARK (SP);
303	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
304	PUTBACK;	419	PUTBACK;
305	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
306	SPAGAIN;	421	SPAGAIN;
307	FREETMPS;	422	FREETMPS;
308	LEAVE;	423	LEAVE;
309	}	424	}
310		425
311	/* stop if no progress has been made */	426	/* stop if no progress has been made */
312	if (old_len == grp->length)	427	if (old_len == grp->size)
313	{	428	{
314	SvREFCNT_dec (grp->fh2);	429	SvREFCNT_dec (grp->sv2);
315	grp->fh2 = 0;	430	grp->sv2 = 0;
316	break;	431	break;
317	}	432	}
318	}	433	}
		434
		435	unblock_sig ();
319	}	436	}
320		437
321	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
322	{	439	{
323	--grp->length;	440	--grp->size;
324		441
325	/* call feeder, if applicable */	442	/* call feeder, if applicable */
326	aio_grp_feed (grp);	443	aio_grp_feed (grp);
327		444
328	/* finish, if done */	445	/* finish, if done */
329	if (!grp->length && grp->fd)	446	if (!grp->size && grp->int1)
330	{	447	{
		448	block_sig ();
		449
331	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
332	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
333	}	459	}
334	}	460	}
335		461
336	static void poll_wait ()
337	{
338	fd_set rfd;
339
340	while (nreqs)
341	{
342	int size;
343	if (WORDREAD_UNSAFE) LOCK (reslock);
344	size = res_queue.size;
345	if (WORDREAD_UNSAFE) UNLOCK (reslock);
346
347	if (size)
348	return;
349
350	FD_ZERO(&rfd);
351	FD_SET(respipe [0], &rfd);
352
353	select (respipe [0] + 1, &rfd, 0, 0, 0);
354	}
355	}
356
357	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
358	{	463	{
359	dSP;	464	dSP;
		465
		466	if (req->flags & FLAG_SV2_RO_OFF)
		467	SvREADONLY_off (req->sv2);
360		468
361	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
362	{	470	{
363	ENTER;	471	ENTER;
364	SAVETMPS;	472	SAVETMPS;
…		…
372	SV *rv = &PL_sv_undef;	480	SV *rv = &PL_sv_undef;
373		481
374	if (req->result >= 0)	482	if (req->result >= 0)
375	{	483	{
376	int i;	484	int i;
377	char *buf = req->data2ptr;	485	char *buf = req->ptr2;
378	AV *av = newAV ();	486	AV *av = newAV ();
379		487
380	av_extend (av, req->result - 1);	488	av_extend (av, req->result - 1);
381		489
382	for (i = 0; i < req->result; ++i)	490	for (i = 0; i < req->result; ++i)
…		…
395	break;	503	break;
396		504
397	case REQ_OPEN:	505	case REQ_OPEN:
398	{	506	{
399	/* convert fd to fh */	507	/* convert fd to fh */
400	SV *fh;	508	SV *fh = &PL_sv_undef;
401		509
402	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
403	PUTBACK;	511	{
404	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
405	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);
406		519
407	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	);
408		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
409	PUSHMARK (SP);	532	PUSHs (fh);
410	XPUSHs (sv_2mortal (fh));
411	}	533	}
412	break;	534	break;
413		535
414	case REQ_GROUP:	536	case REQ_GROUP:
415	req->fd = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
416		538
417	if (req->data)	539	if (req->sv1)
418	{	540	{
419	int i;	541	int i;
420	AV *av = (AV *)req->data;	542	AV *av = (AV *)req->sv1;
421		543
422	EXTEND (SP, AvFILL (av) + 1);	544	EXTEND (SP, AvFILL (av) + 1);
423	for (i = 0; i <= AvFILL (av); ++i)	545	for (i = 0; i <= AvFILL (av); ++i)
424	PUSHs (*av_fetch (av, i, 0));	546	PUSHs (*av_fetch (av, i, 0));
425	}	547	}
…		…
427		549
428	case REQ_NOP:	550	case REQ_NOP:
429	case REQ_BUSY:	551	case REQ_BUSY:
430	break;	552	break;
431		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
432	default:	578	default:
433	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
434	break;	580	break;
435	}	581	}
436		582
437	errno = req->errorno;	583	errno = req->errorno;
438		584
439	PUTBACK;	585	PUTBACK;
440	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
441	SPAGAIN;	587	SPAGAIN;
442		588
443	FREETMPS;	589	FREETMPS;
444	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
445	}	593	}
446		594
447	if (req->grp)	595	if (req->grp)
448	{	596	{
449	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
456	grp->grp_first = req->grp_next;	604	grp->grp_first = req->grp_next;
457		605
458	aio_grp_dec (grp);	606	aio_grp_dec (grp);
459	}	607	}
460		608
461	if (SvTRUE (ERRSV))	609	return !SvTRUE (ERRSV);
462	{
463	req_free (req);
464	croak (0);
465	}
466	}	610	}
467		611
468	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
469	{	613	{
470	if (req->self)	614	if (req->self)
471	{	615	{
472	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
473	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
474	}	618	}
475		619
476	SvREFCNT_dec (req->data);
477	SvREFCNT_dec (req->fh);	620	SvREFCNT_dec (req->sv1);
478	SvREFCNT_dec (req->fh2);	621	SvREFCNT_dec (req->sv2);
479	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
480	Safefree (req->statdata);
481		623
482	if (req->type == REQ_READDIR)	624	if (req->flags & FLAG_PTR2_FREE)
483	free (req->data2ptr);	625	free (req->ptr2);
484		626
485	Safefree (req);	627	Safefree (req);
486	}	628	}
487		629
488	static void req_cancel_subs (aio_req grp)	630	static void req_cancel_subs (aio_req grp)
…		…
490	aio_req sub;	632	aio_req sub;
491		633
492	if (grp->type != REQ_GROUP)	634	if (grp->type != REQ_GROUP)
493	return;	635	return;
494		636
495	SvREFCNT_dec (grp->fh2);	637	SvREFCNT_dec (grp->sv2);
496	grp->fh2 = 0;	638	grp->sv2 = 0;
497		639
498	for (sub = grp->grp_first; sub; sub = sub->grp_next)	640	for (sub = grp->grp_first; sub; sub = sub->grp_next)
499	req_cancel (sub);	641	req_cancel (sub);
500	}	642	}
501		643
…		…
504	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
505		647
506	req_cancel_subs (req);	648	req_cancel_subs (req);
507	}	649	}
508		650
509	static int poll_cb (int max)	651	#ifdef USE_SOCKETS_AS_HANDLES
510	{	652	# define TO_SOCKET(x) (win32_get_osfhandle (x))
511	dSP;	653	#else
512	int count = 0;	654	# define TO_SOCKET(x) (x)
513	int do_croak = 0;	655	#endif
514	aio_req req;
515		656
516	for (;;)	657	static void
		658	create_respipe ()
		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)
517	{	673	{
518	while (max <= 0 || count < max)	674	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
519	{	675	croak ("unable to initialize result pipe(2)");
520	LOCK (reslock);
521	req = reqq_shift (&res_queue);
522		676
523	if (req)	677	respipe_close (respipe [0]);
524	{	678	respipe [0] = old_readfd;
525	--npending;
526
527	if (!res_queue.size)
528	{
529	/* read any signals sent by the worker threads */
530	char buf [32];
531	while (read (respipe [0], buf, 32) == 32)
532	;
533	}
534	}
535
536	UNLOCK (reslock);
537
538	if (!req)
539	break;
540
541	--nreqs;
542
543	if (req->type == REQ_QUIT)
544	--started;
545	else if (req->type == REQ_GROUP && req->length)
546	{
547	req->fd = 1; /* mark request as delayed */
548	continue;
549	}
550	else
551	{
552	if (req->type == REQ_READ)
553	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
554
555	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
556	SvREADONLY_off (req->data);
557
558	if (req->statdata)
559	{
560	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
561	PL_laststatval = req->result;
562	PL_statcache = *(req->statdata);
563	}
564
565	req_invoke (req);
566
567	count++;
568	}
569
570	req_free (req);
571	}
572
573	if (nreqs <= max_outstanding)
574	break;
575
576	poll_wait ();
577
578	max = 0;
579	}	679	}
580		680
581	return count;	681	#ifdef _WIN32
582	}	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)");
583		690
584	static void *aio_proc(void *arg);	691	respipe_osf [0] = TO_SOCKET (respipe [0]);
		692	respipe_osf [1] = TO_SOCKET (respipe [1]);
		693	}
		694
		695	X_THREAD_PROC (aio_proc);
585		696
586	static void start_thread (void)	697	static void start_thread (void)
587	{	698	{
588	sigset_t fullsigset, oldsigset;
589	pthread_attr_t attr;
590
591	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
592		700
593	if (!wrk)	701	if (!wrk)
594	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
595		703
596	pthread_attr_init (&attr);
597	pthread_attr_setstacksize (&attr, STACKSIZE);
598	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
599
600	sigfillset (&fullsigset);
601
602	LOCK (wrklock);	704	X_LOCK (wrklock);
603	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
604		705
605	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
606	{	707	{
607	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
608	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
609	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
610	wrk_first.next = wrk;	711	wrk_first.next = wrk;
611	++started;	712	++started;
612	}	713	}
613	else	714	else
614	free (wrk);	715	free (wrk);
615		716
616	sigprocmask (SIG_SETMASK, &oldsigset, 0);
617	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
		718	}
		719
		720	static void maybe_start_thread ()
		721	{
		722	if (get_nthreads () >= wanted)
		723	return;
		724
		725	/* todo: maybe use idle here, but might be less exact */
		726	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		727	return;
		728
		729	start_thread ();
618	}	730	}
619		731
620	static void req_send (aio_req req)	732	static void req_send (aio_req req)
621	{	733	{
622	while (started < wanted && nreqs >= started)	734	block_sig ();
623	start_thread ();
624		735
625	++nreqs;	736	++nreqs;
626		737
627	LOCK (reqlock);	738	X_LOCK (reqlock);
628	++nready;	739	++nready;
629	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
630	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
631	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
		743
		744	unblock_sig ();
		745
		746	maybe_start_thread ();
632	}	747	}
633		748
634	static void end_thread (void)	749	static void end_thread (void)
635	{	750	{
636	aio_req req;	751	aio_req req;
…		…
638	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
639		754
640	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
641	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
642		757
643	req_send (req);	758	X_LOCK (reqlock);
		759	reqq_push (&req_queue, req);
		760	X_COND_SIGNAL (reqwait);
		761	X_UNLOCK (reqlock);
		762
		763	X_LOCK (wrklock);
		764	--started;
		765	X_UNLOCK (wrklock);
		766	}
		767
		768	static void set_max_idle (int nthreads)
		769	{
		770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		771	max_idle = nthreads <= 0 ? 1 : nthreads;
		772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
644	}	773	}
645		774
646	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
647	{	776	{
648	if (wanted < nthreads)	777	if (wanted < nthreads)
649	wanted = nthreads;	778	wanted = nthreads;
650	}	779	}
651		780
652	static void max_parallel (int nthreads)	781	static void max_parallel (int nthreads)
653	{	782	{
654	int cur = started;
655
656	if (wanted > nthreads)	783	if (wanted > nthreads)
657	wanted = nthreads;	784	wanted = nthreads;
658		785
659	while (cur > wanted)	786	while (started > wanted)
		787	end_thread ();
		788	}
		789
		790	static void poll_wait ()
		791	{
		792	fd_set rfd;
		793
		794	while (nreqs)
660	{	795	{
		796	int size;
		797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		798	size = res_queue.size;
		799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		800
		801	if (size)
		802	return;
		803
661	end_thread ();	804	maybe_start_thread ();
662	cur--;	805
		806	FD_ZERO (&rfd);
		807	FD_SET (respipe [0], &rfd);
		808
		809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
663	}	810	}
		811	}
664		812
665	while (started > wanted)	813	static int poll_cb ()
		814	{
		815	dSP;
		816	int count = 0;
		817	int maxreqs = max_poll_reqs;
		818	int do_croak = 0;
		819	struct timeval tv_start, tv_now;
		820	aio_req req;
		821
		822	if (max_poll_time)
		823	gettimeofday (&tv_start, 0);
		824
		825	block_sig ();
		826
		827	for (;;)
666	{	828	{
		829	for (;;)
		830	{
		831	maybe_start_thread ();
		832
		833	X_LOCK (reslock);
		834	req = reqq_shift (&res_queue);
		835
		836	if (req)
		837	{
		838	--npending;
		839
		840	if (!res_queue.size)
		841	{
		842	/* read any signals sent by the worker threads */
		843	char buf [4];
		844	while (respipe_read (respipe [0], buf, 4) == 4)
		845	;
		846	}
		847	}
		848
		849	X_UNLOCK (reslock);
		850
		851	if (!req)
		852	break;
		853
		854	--nreqs;
		855
		856	if (req->type == REQ_GROUP && req->size)
		857	{
		858	req->int1 = 1; /* mark request as delayed */
		859	continue;
		860	}
		861	else
		862	{
		863	if (!req_invoke (req))
		864	{
		865	req_destroy (req);
		866	unblock_sig ();
		867	croak (0);
		868	}
		869
		870	count++;
		871	}
		872
		873	req_destroy (req);
		874
		875	if (maxreqs && !--maxreqs)
		876	break;
		877
		878	if (max_poll_time)
		879	{
		880	gettimeofday (&tv_now, 0);
		881
		882	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		883	break;
		884	}
		885	}
		886
		887	if (nreqs <= max_outstanding)
		888	break;
		889
667	poll_wait ();	890	poll_wait ();
668	poll_cb (0);	891
		892	++maxreqs;
669	}	893	}
670	}
671		894
672	static void create_pipe ()	895	unblock_sig ();
673	{	896	return count;
674	if (pipe (respipe))
675	croak ("unable to initialize result pipe");
676
677	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
678	croak ("cannot set result pipe to nonblocking mode");
679
680	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
681	croak ("cannot set result pipe to nonblocking mode");
682	}	897	}
683		898
684	/*****************************************************************************/	899	/*****************************************************************************/
685	/* work around various missing functions */	900	/* work around various missing functions */
686		901
…		…
691	/*	906	/*
692	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
693	* 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,
694	* but that's your problem, not mine.	909	* but that's your problem, not mine.
695	*/	910	*/
696	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
697		912
698	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)
699	{	914	{
700	ssize_t res;	915	ssize_t res;
701	off_t ooffset;	916	off_t ooffset;
702		917
703	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
704	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
705	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
706	res = read (fd, buf, count);	921	res = read (fd, buf, count);
707	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
708	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
709		924
710	return res;	925	return res;
711	}	926	}
712		927
713	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)
714	{	929	{
715	ssize_t res;	930	ssize_t res;
716	off_t ooffset;	931	off_t ooffset;
717		932
718	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
719	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
720	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
721	res = write (fd, buf, count);	936	res = write (fd, buf, count);
722	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
723	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
724		939
725	return res;	940	return res;
726	}	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
727	#endif	970	#endif
728		971
729	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
730	# define fdatasync fsync	973	# define fdatasync fsync
731	#endif	974	#endif
…		…
733	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
734	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
735		978
736	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)
737	{	980	{
		981	size_t todo = count;
738	dBUF;	982	dBUF;
739		983
740	while (count > 0)	984	while (todo > 0)
741	{	985	{
742	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
743		987
744	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
745	offset += len;	989	offset += len;
746	count -= len;	990	todo -= len;
747	}	991	}
748		992
749	errno = 0;	993	errno = 0;
		994	return count;
750	}	995	}
751		996
752	#endif	997	#endif
753		998
754	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
755	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
756		1001
757	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
758		1003
759	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)
760	{	1005	{
761	struct dirent *e;	1006	X_DIRENT *e;
762	int errorno;	1007	int errorno;
763		1008
764	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
765		1010
766	e = readdir (dirp);	1011	e = readdir (dirp);
767	errorno = errno;	1012	errorno = errno;
768		1013
769	if (e)	1014	if (e)
…		…
772	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
773	}	1018	}
774	else	1019	else
775	*res = 0;	1020	*res = 0;
776		1021
777	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
778		1023
779	errno = errorno;	1024	errno = errorno;
780	return e ? 0 : -1;	1025	return e ? 0 : -1;
781	}	1026	}
782	#endif	1027	#endif
…		…
878	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
879	{	1124	{
880	DIR *dirp;	1125	DIR *dirp;
881	union	1126	union
882	{	1127	{
883	struct dirent d;	1128	X_DIRENT d;
884	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
885	} *u;	1130	} *u;
886	struct dirent *entp;	1131	X_DIRENT *entp;
887	char *name, *names;	1132	char *name, *names;
888	int memlen = 4096;	1133	int memlen = 4096;
889	int memofs = 0;	1134	int memofs = 0;
890	int res = 0;	1135	int res = 0;
891	int errorno;
892		1136
893	LOCK (wrklock);	1137	X_LOCK (wrklock);
894	self->dirp = dirp = opendir (req->dataptr);	1138	self->dirp = dirp = opendir (req->ptr1);
895	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
		1140	req->flags |= FLAG_PTR2_FREE;
896	req->data2ptr = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
897	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
898		1143
899	if (dirp && u && names)	1144	if (dirp && u && names)
900	for (;;)	1145	for (;;)
901	{	1146	{
902	errno = 0;	1147	errno = 0;
…		…
914	res++;	1159	res++;
915		1160
916	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
917	{	1162	{
918	memlen *= 2;	1163	memlen *= 2;
919	LOCK (wrklock);	1164	X_LOCK (wrklock);
920	req->data2ptr = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
921	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
922		1167
923	if (!names)	1168	if (!names)
924	break;	1169	break;
925	}	1170	}
926		1171
…		…
935	req->result = res;	1180	req->result = res;
936	}	1181	}
937		1182
938	/*****************************************************************************/	1183	/*****************************************************************************/
939		1184
940	static void *aio_proc (void *thr_arg)	1185	X_THREAD_PROC (aio_proc)
941	{	1186	{
		1187	{//D
942	aio_req req;	1188	aio_req req;
943	int type;	1189	struct timespec ts;
944	worker *self = (worker *)thr_arg;	1190	worker *self = (worker *)thr_arg;
945		1191
946	do	1192	/* try to distribute timeouts somewhat randomly */
		1193	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1194
		1195	for (;;)
947	{	1196	{
		1197	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1198
948	LOCK (reqlock);	1199	X_LOCK (reqlock);
949		1200
950	for (;;)	1201	for (;;)
951	{	1202	{
952	self->req = req = reqq_shift (&req_queue);	1203	self->req = req = reqq_shift (&req_queue);
953		1204
954	if (req)	1205	if (req)
955	break;	1206	break;
956		1207
957	pthread_cond_wait (&reqwait, &reqlock);	1208	++idle;
		1209
		1210	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1211	== ETIMEDOUT)
		1212	{
		1213	if (idle > max_idle)
		1214	{
		1215	--idle;
		1216	X_UNLOCK (reqlock);
		1217	X_LOCK (wrklock);
		1218	--started;
		1219	X_UNLOCK (wrklock);
		1220	goto quit;
		1221	}
		1222
		1223	/* we are allowed to idle, so do so without any timeout */
		1224	X_COND_WAIT (reqwait, reqlock);
		1225	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1226	}
		1227
		1228	--idle;
958	}	1229	}
959		1230
960	--nready;	1231	--nready;
961		1232
962	UNLOCK (reqlock);	1233	X_UNLOCK (reqlock);
963		1234
964	errno = 0; /* strictly unnecessary */	1235	errno = 0; /* strictly unnecessary */
965	type = req->type; /* remember type for QUIT check */
966		1236
967	if (!(req->flags & FLAG_CANCELLED))	1237	if (!(req->flags & FLAG_CANCELLED))
968	switch (type)	1238	switch (req->type)
969	{	1239	{
970	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1240	case REQ_READ: req->result = req->offs >= 0
971	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1241	? pread (req->int1, req->ptr1, req->size, req->offs)
		1242	: read (req->int1, req->ptr1, req->size); break;
		1243	case REQ_WRITE: req->result = req->offs >= 0
		1244	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1245	: write (req->int1, req->ptr1, req->size); break;
972		1246
973	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1247	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
974	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1248	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
975		1249
976	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1250	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
977	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1251	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
978	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1252	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
979		1253
		1254	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1255	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1256	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1257	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1258	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1259	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1260
980	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1261	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
981	case REQ_CLOSE: req->result = close (req->fd); break;	1262	case REQ_CLOSE: req->result = close (req->int1); break;
982	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1263	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
983	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1264	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1265	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
984	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1266	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
985	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1267	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
986	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1268	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1269	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1270	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
987		1271
988	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1272	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
989	case REQ_FSYNC: req->result = fsync (req->fd); break;	1273	case REQ_FSYNC: req->result = fsync (req->int1); break;
990	case REQ_READDIR: scandir_ (req, self); break;	1274	case REQ_READDIR: scandir_ (req, self); break;
991		1275
992	case REQ_BUSY:	1276	case REQ_BUSY:
		1277	#ifdef _WIN32
		1278	Sleep (req->nv1 * 1000.);
		1279	#else
993	{	1280	{
994	struct timeval tv;	1281	struct timeval tv;
995		1282
996	tv.tv_sec = req->fd;	1283	tv.tv_sec = req->nv1;
997	tv.tv_usec = req->fd2;	1284	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
998		1285
999	req->result = select (0, 0, 0, 0, &tv);	1286	req->result = select (0, 0, 0, 0, &tv);
1000	}	1287	}
		1288	#endif
		1289	break;
		1290
		1291	case REQ_UTIME:
		1292	case REQ_FUTIME:
		1293	{
		1294	struct timeval tv[2];
		1295	struct timeval *times;
		1296
		1297	if (req->nv1 != -1. || req->nv2 != -1.)
		1298	{
		1299	tv[0].tv_sec = req->nv1;
		1300	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1301	tv[1].tv_sec = req->nv2;
		1302	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1303
		1304	times = tv;
		1305	}
		1306	else
		1307	times = 0;
		1308
		1309
		1310	req->result = req->type == REQ_FUTIME
		1311	? futimes (req->int1, times)
		1312	: utimes (req->ptr1, times);
		1313	}
1001		1314
1002	case REQ_GROUP:	1315	case REQ_GROUP:
1003	case REQ_NOP:	1316	case REQ_NOP:
		1317	break;
		1318
1004	case REQ_QUIT:	1319	case REQ_QUIT:
1005	break;	1320	goto quit;
1006		1321
1007	default:	1322	default:
1008	req->result = ENOSYS;	1323	req->result = -1;
1009	break;	1324	break;
1010	}	1325	}
1011		1326
1012	req->errorno = errno;	1327	req->errorno = errno;
1013		1328
1014	LOCK (reslock);	1329	X_LOCK (reslock);
1015		1330
1016	++npending;	1331	++npending;
1017		1332
1018	if (!reqq_push (&res_queue, req))	1333	if (!reqq_push (&res_queue, req))
		1334	{
1019	/* write a dummy byte to the pipe so fh becomes ready */	1335	/* write a dummy byte to the pipe so fh becomes ready */
1020	write (respipe [1], &respipe, 1);	1336	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1337
		1338	/* optionally signal the main thread asynchronously */
		1339	if (main_sig)
		1340	pthread_kill (main_tid, main_sig);
		1341	}
1021		1342
1022	self->req = 0;	1343	self->req = 0;
1023	worker_clear (self);	1344	worker_clear (self);
1024		1345
1025	UNLOCK (reslock);	1346	X_UNLOCK (reslock);
1026	}	1347	}
1027	while (type != REQ_QUIT);
1028		1348
		1349	quit:
1029	LOCK (wrklock);	1350	X_LOCK (wrklock);
1030	worker_free (self);	1351	worker_free (self);
1031	UNLOCK (wrklock);	1352	X_UNLOCK (wrklock);
1032		1353
1033	return 0;	1354	return 0;
		1355	}//D
1034	}	1356	}
1035		1357
1036	/*****************************************************************************/	1358	/*****************************************************************************/
1037		1359
1038	static void atfork_prepare (void)	1360	static void atfork_prepare (void)
1039	{	1361	{
1040	LOCK (wrklock);	1362	X_LOCK (wrklock);
1041	LOCK (reqlock);	1363	X_LOCK (reqlock);
1042	LOCK (reslock);	1364	X_LOCK (reslock);
1043	#if !HAVE_PREADWRITE	1365	#if !HAVE_PREADWRITE
1044	LOCK (preadwritelock);	1366	X_LOCK (preadwritelock);
1045	#endif	1367	#endif
1046	#if !HAVE_READDIR_R	1368	#if !HAVE_READDIR_R
1047	LOCK (readdirlock);	1369	X_LOCK (readdirlock);
1048	#endif	1370	#endif
1049	}	1371	}
1050		1372
1051	static void atfork_parent (void)	1373	static void atfork_parent (void)
1052	{	1374	{
1053	#if !HAVE_READDIR_R	1375	#if !HAVE_READDIR_R
1054	UNLOCK (readdirlock);	1376	X_UNLOCK (readdirlock);
1055	#endif	1377	#endif
1056	#if !HAVE_PREADWRITE	1378	#if !HAVE_PREADWRITE
1057	UNLOCK (preadwritelock);	1379	X_UNLOCK (preadwritelock);
1058	#endif	1380	#endif
1059	UNLOCK (reslock);	1381	X_UNLOCK (reslock);
1060	UNLOCK (reqlock);	1382	X_UNLOCK (reqlock);
1061	UNLOCK (wrklock);	1383	X_UNLOCK (wrklock);
1062	}	1384	}
1063		1385
1064	static void atfork_child (void)	1386	static void atfork_child (void)
1065	{	1387	{
1066	aio_req prv;	1388	aio_req prv;
1067		1389
1068	while (prv = reqq_shift (&req_queue))	1390	while (prv = reqq_shift (&req_queue))
1069	req_free (prv);	1391	req_destroy (prv);
1070		1392
1071	while (prv = reqq_shift (&res_queue))	1393	while (prv = reqq_shift (&res_queue))
1072	req_free (prv);	1394	req_destroy (prv);
1073		1395
1074	while (wrk_first.next != &wrk_first)	1396	while (wrk_first.next != &wrk_first)
1075	{	1397	{
1076	worker *wrk = wrk_first.next;	1398	worker *wrk = wrk_first.next;
1077		1399
1078	if (wrk->req)	1400	if (wrk->req)
1079	req_free (wrk->req);	1401	req_destroy (wrk->req);
1080		1402
1081	worker_clear (wrk);	1403	worker_clear (wrk);
1082	worker_free (wrk);	1404	worker_free (wrk);
1083	}	1405	}
1084		1406
1085	started = 0;	1407	started = 0;
		1408	idle = 0;
1086	nreqs = 0;	1409	nreqs = 0;
		1410	nready = 0;
		1411	npending = 0;
1087		1412
1088	close (respipe [0]);
1089	close (respipe [1]);
1090	create_pipe ();	1413	create_respipe ();
1091		1414
1092	atfork_parent ();	1415	atfork_parent ();
1093	}	1416	}
1094		1417
1095	#define dREQ \	1418	#define dREQ \
…		…
1117		1440
1118	PROTOTYPES: ENABLE	1441	PROTOTYPES: ENABLE
1119		1442
1120	BOOT:	1443	BOOT:
1121	{	1444	{
1122	HV *stash = gv_stashpv ("IO::AIO", 1);	1445	stash = gv_stashpv ("IO::AIO", 1);
		1446
1123	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1124	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1125	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		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);
1126		1459
1127	create_pipe ();	1460	X_COND_CHECK (reqwait);
		1461	#else
		1462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1463	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1464	#endif
		1465
		1466	create_respipe ();
		1467
1128	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1468	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1129	}	1469	}
		1470
		1471	void
		1472	max_poll_reqs (int nreqs)
		1473	PROTOTYPE: $
		1474	CODE:
		1475	max_poll_reqs = nreqs;
		1476
		1477	void
		1478	max_poll_time (double nseconds)
		1479	PROTOTYPE: $
		1480	CODE:
		1481	max_poll_time = nseconds * AIO_TICKS;
1130		1482
1131	void	1483	void
1132	min_parallel (int nthreads)	1484	min_parallel (int nthreads)
1133	PROTOTYPE: $	1485	PROTOTYPE: $
1134		1486
1135	void	1487	void
1136	max_parallel (int nthreads)	1488	max_parallel (int nthreads)
1137	PROTOTYPE: $	1489	PROTOTYPE: $
		1490
		1491	void
		1492	max_idle (int nthreads)
		1493	PROTOTYPE: $
		1494	CODE:
		1495	set_max_idle (nthreads);
1138		1496
1139	int	1497	int
1140	max_outstanding (int maxreqs)	1498	max_outstanding (int maxreqs)
1141	PROTOTYPE: $	1499	PROTOTYPE: $
1142	CODE:	1500	CODE:
…		…
1144	max_outstanding = maxreqs;	1502	max_outstanding = maxreqs;
1145	OUTPUT:	1503	OUTPUT:
1146	RETVAL	1504	RETVAL
1147		1505
1148	void	1506	void
1149	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1507	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1150	SV * pathname
1151	int flags
1152	int mode
1153	SV * callback
1154	PROTOTYPE: $$$;$	1508	PROTOTYPE: $$$;$
1155	PPCODE:	1509	PPCODE:
1156	{	1510	{
1157	dREQ;	1511	dREQ;
1158		1512
1159	req->type = REQ_OPEN;	1513	req->type = REQ_OPEN;
1160	req->data = newSVsv (pathname);	1514	req->sv1 = newSVsv (pathname);
1161	req->dataptr = SvPVbyte_nolen (req->data);	1515	req->ptr1 = SvPVbyte_nolen (req->sv1);
1162	req->fd = flags;	1516	req->int1 = flags;
1163	req->mode = mode;	1517	req->mode = mode;
1164		1518
1165	REQ_SEND;	1519	REQ_SEND;
1166	}	1520	}
1167		1521
1168	void	1522	void
1169	aio_close (fh,callback=&PL_sv_undef)	1523	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1170	SV * fh
1171	SV * callback
1172	PROTOTYPE: $;$	1524	PROTOTYPE: $;$
1173	ALIAS:	1525	ALIAS:
1174	aio_close = REQ_CLOSE
1175	aio_fsync = REQ_FSYNC	1526	aio_fsync = REQ_FSYNC
1176	aio_fdatasync = REQ_FDATASYNC	1527	aio_fdatasync = REQ_FDATASYNC
1177	PPCODE:	1528	PPCODE:
1178	{	1529	{
1179	dREQ;	1530	dREQ;
1180		1531
1181	req->type = ix;	1532	req->type = ix;
1182	req->fh = newSVsv (fh);	1533	req->sv1 = newSVsv (fh);
1183	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1534	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1184		1535
1185	REQ_SEND (req);	1536	REQ_SEND (req);
1186	}	1537	}
1187		1538
		1539	int
		1540	_dup (int fd)
		1541	PROTOTYPE: $
		1542	CODE:
		1543	RETVAL = dup (fd);
		1544	OUTPUT:
		1545	RETVAL
		1546
1188	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
1189	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)
1190	SV * fh
1191	UV offset
1192	UV length
1193	SV * data
1194	UV dataoffset
1195	SV * callback
1196	ALIAS:	1562	ALIAS:
1197	aio_read = REQ_READ	1563	aio_read = REQ_READ
1198	aio_write = REQ_WRITE	1564	aio_write = REQ_WRITE
1199	PROTOTYPE: $$$$$;$	1565	PROTOTYPE: $$$$$;$
1200	PPCODE:	1566	PPCODE:
1201	{	1567	{
1202	aio_req req;
1203	STRLEN svlen;	1568	STRLEN svlen;
1204	char *svptr = SvPVbyte (data, svlen);	1569	char *svptr = SvPVbyte (data, svlen);
		1570	UV len = SvUV (length);
1205		1571
1206	SvUPGRADE (data, SVt_PV);	1572	SvUPGRADE (data, SVt_PV);
1207	SvPOK_on (data);	1573	SvPOK_on (data);
1208		1574
1209	if (dataoffset < 0)	1575	if (dataoffset < 0)
1210	dataoffset += svlen;	1576	dataoffset += svlen;
1211		1577
1212	if (dataoffset < 0 || dataoffset > svlen)	1578	if (dataoffset < 0 || dataoffset > svlen)
1213	croak ("data offset outside of string");	1579	croak ("dataoffset outside of data scalar");
1214		1580
1215	if (ix == REQ_WRITE)	1581	if (ix == REQ_WRITE)
1216	{	1582	{
1217	/* write: check length and adjust. */	1583	/* write: check length and adjust. */
1218	if (length < 0 || length + dataoffset > svlen)	1584	if (!SvOK (length) || len + dataoffset > svlen)
1219	length = svlen - dataoffset;	1585	len = svlen - dataoffset;
1220	}	1586	}
1221	else	1587	else
1222	{	1588	{
1223	/* read: grow scalar as necessary */	1589	/* read: grow scalar as necessary */
1224	svptr = SvGROW (data, length + dataoffset);	1590	svptr = SvGROW (data, len + dataoffset + 1);
1225	}	1591	}
1226		1592
1227	if (length < 0)	1593	if (len < 0)
1228	croak ("length must not be negative");	1594	croak ("length must not be negative");
1229		1595
1230	{	1596	{
1231	dREQ;	1597	dREQ;
1232		1598
1233	req->type = ix;	1599	req->type = ix;
1234	req->fh = newSVsv (fh);	1600	req->sv1 = newSVsv (fh);
1235	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1601	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1236	: IoOFP (sv_2io (fh)));	1602	: IoOFP (sv_2io (fh)));
		1603	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237	req->offset = offset;	1604	req->size = len;
1238	req->length = length;
1239	req->data = SvREFCNT_inc (data);	1605	req->sv2 = SvREFCNT_inc (data);
1240	req->dataptr = (char *)svptr + dataoffset;	1606	req->ptr1 = (char *)svptr + dataoffset;
		1607	req->stroffset = dataoffset;
1241		1608
1242	if (!SvREADONLY (data))	1609	if (!SvREADONLY (data))
1243	{	1610	{
1244	SvREADONLY_on (data);	1611	SvREADONLY_on (data);
1245	req->data2ptr = (void *)data;	1612	req->flags |= FLAG_SV2_RO_OFF;
1246	}	1613	}
1247		1614
1248	REQ_SEND;	1615	REQ_SEND;
1249	}	1616	}
1250	}	1617	}
1251		1618
1252	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
1253	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)
1254	SV * out_fh
1255	SV * in_fh
1256	UV in_offset
1257	UV length
1258	SV * callback
1259	PROTOTYPE: $$$$;$	1641	PROTOTYPE: $$$$;$
1260	PPCODE:	1642	PPCODE:
1261	{	1643	{
1262	dREQ;	1644	dREQ;
1263		1645
1264	req->type = REQ_SENDFILE;	1646	req->type = REQ_SENDFILE;
1265	req->fh = newSVsv (out_fh);	1647	req->sv1 = newSVsv (out_fh);
1266	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1648	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1267	req->fh2 = newSVsv (in_fh);	1649	req->sv2 = newSVsv (in_fh);
1268	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1650	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1269	req->offset = in_offset;	1651	req->offs = SvVAL64 (in_offset);
1270	req->length = length;	1652	req->size = length;
1271		1653
1272	REQ_SEND;	1654	REQ_SEND;
1273	}	1655	}
1274		1656
1275	void	1657	void
1276	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1658	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1277	SV * fh
1278	UV offset
1279	IV length
1280	SV * callback
1281	PROTOTYPE: $$$;$	1659	PROTOTYPE: $$$;$
1282	PPCODE:	1660	PPCODE:
1283	{	1661	{
1284	dREQ;	1662	dREQ;
1285		1663
1286	req->type = REQ_READAHEAD;	1664	req->type = REQ_READAHEAD;
1287	req->fh = newSVsv (fh);	1665	req->sv1 = newSVsv (fh);
1288	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1666	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1289	req->offset = offset;	1667	req->offs = SvVAL64 (offset);
1290	req->length = length;	1668	req->size = length;
1291		1669
1292	REQ_SEND;	1670	REQ_SEND;
1293	}	1671	}
1294		1672
1295	void	1673	void
1296	aio_stat (fh_or_path,callback=&PL_sv_undef)	1674	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1297	SV * fh_or_path
1298	SV * callback
1299	ALIAS:	1675	ALIAS:
1300	aio_stat = REQ_STAT	1676	aio_stat = REQ_STAT
1301	aio_lstat = REQ_LSTAT	1677	aio_lstat = REQ_LSTAT
1302	PPCODE:	1678	PPCODE:
1303	{	1679	{
1304	dREQ;	1680	dREQ;
1305		1681
1306	New (0, req->statdata, 1, Stat_t);	1682	req->ptr2 = malloc (sizeof (Stat_t));
1307	if (!req->statdata)	1683	if (!req->ptr2)
1308	{	1684	{
1309	req_free (req);	1685	req_destroy (req);
1310	croak ("out of memory during aio_req->statdata allocation");	1686	croak ("out of memory during aio_stat statdata allocation");
1311	}	1687	}
		1688
		1689	req->flags |= FLAG_PTR2_FREE;
		1690	req->sv1 = newSVsv (fh_or_path);
1312		1691
1313	if (SvPOK (fh_or_path))	1692	if (SvPOK (fh_or_path))
1314	{	1693	{
1315	req->type = ix;	1694	req->type = ix;
1316	req->data = newSVsv (fh_or_path);
1317	req->dataptr = SvPVbyte_nolen (req->data);	1695	req->ptr1 = SvPVbyte_nolen (req->sv1);
1318	}	1696	}
1319	else	1697	else
1320	{	1698	{
1321	req->type = REQ_FSTAT;	1699	req->type = REQ_FSTAT;
1322	req->fh = newSVsv (fh_or_path);
1323	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1324	}	1701	}
1325		1702
1326	REQ_SEND;	1703	REQ_SEND;
1327	}	1704	}
1328		1705
1329	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
1330	aio_unlink (pathname,callback=&PL_sv_undef)	1801	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331	SV * pathname
1332	SV * callback
1333	ALIAS:	1802	ALIAS:
1334	aio_unlink = REQ_UNLINK	1803	aio_unlink = REQ_UNLINK
1335	aio_rmdir = REQ_RMDIR	1804	aio_rmdir = REQ_RMDIR
1336	aio_readdir = REQ_READDIR	1805	aio_readdir = REQ_READDIR
1337	PPCODE:	1806	PPCODE:
1338	{	1807	{
1339	dREQ;	1808	dREQ;
1340		1809
1341	req->type = ix;	1810	req->type = ix;
1342	req->data = newSVsv (pathname);	1811	req->sv1 = newSVsv (pathname);
1343	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;
1344		1822
		1823	req->type = REQ_MKDIR;
		1824	req->sv1 = newSVsv (pathname);
		1825	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1826	req->mode = mode;
		1827
1345	REQ_SEND;	1828	REQ_SEND;
1346	}	1829	}
1347		1830
1348	void	1831	void
1349	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1832	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1350	SV * oldpath
1351	SV * newpath
1352	SV * callback
1353	ALIAS:	1833	ALIAS:
1354	aio_link = REQ_LINK	1834	aio_link = REQ_LINK
1355	aio_symlink = REQ_SYMLINK	1835	aio_symlink = REQ_SYMLINK
1356	aio_rename = REQ_RENAME	1836	aio_rename = REQ_RENAME
1357	PPCODE:	1837	PPCODE:
1358	{	1838	{
1359	dREQ;	1839	dREQ;
1360		1840
1361	req->type = ix;	1841	req->type = ix;
1362	req->fh = newSVsv (oldpath);	1842	req->sv2 = newSVsv (oldpath);
1363	req->data2ptr = SvPVbyte_nolen (req->fh);	1843	req->ptr2 = SvPVbyte_nolen (req->sv2);
1364	req->data = newSVsv (newpath);	1844	req->sv1 = newSVsv (newpath);
1365	req->dataptr = SvPVbyte_nolen (req->data);	1845	req->ptr1 = SvPVbyte_nolen (req->sv1);
1366		1846
1367	REQ_SEND;	1847	REQ_SEND;
1368	}	1848	}
1369		1849
1370	void	1850	void
1371	aio_busy (delay,callback=&PL_sv_undef)	1851	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1372	double delay
1373	SV * callback
1374	PPCODE:	1852	PPCODE:
1375	{	1853	{
1376	dREQ;	1854	dREQ;
		1855
		1856	req->type = REQ_MKNOD;
		1857	req->sv1 = newSVsv (pathname);
		1858	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1859	req->mode = (mode_t)mode;
		1860	req->offs = dev;
		1861
		1862	REQ_SEND;
		1863	}
		1864
		1865	void
		1866	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1867	PPCODE:
		1868	{
		1869	dREQ;
1377		1870
1378	req->type = REQ_BUSY;	1871	req->type = REQ_BUSY;
1379	req->fd = delay < 0. ? 0 : delay;	1872	req->nv1 = delay < 0. ? 0. : delay;
1380	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1381		1873
1382	REQ_SEND;	1874	REQ_SEND;
1383	}	1875	}
1384		1876
1385	void	1877	void
1386	aio_group (callback=&PL_sv_undef)	1878	aio_group (SV *callback=&PL_sv_undef)
1387	SV * callback
1388	PROTOTYPE: ;$	1879	PROTOTYPE: ;$
1389	PPCODE:	1880	PPCODE:
1390	{	1881	{
1391	dREQ;	1882	dREQ;
1392		1883
1393	req->type = REQ_GROUP;	1884	req->type = REQ_GROUP;
		1885
1394	req_send (req);	1886	req_send (req);
1395
1396	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1887	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1397	}	1888	}
1398		1889
1399	void	1890	void
1400	aio_nop (callback=&PL_sv_undef)	1891	aio_nop (SV *callback=&PL_sv_undef)
1401	SV * callback
1402	PPCODE:	1892	PPCODE:
1403	{	1893	{
1404	dREQ;	1894	dREQ;
1405		1895
1406	req->type = REQ_NOP;	1896	req->type = REQ_NOP;
…		…
1435	PROTOTYPE:	1925	PROTOTYPE:
1436	CODE:	1926	CODE:
1437	while (nreqs)	1927	while (nreqs)
1438	{	1928	{
1439	poll_wait ();	1929	poll_wait ();
1440	poll_cb (0);	1930	poll_cb ();
1441	}	1931	}
1442		1932
1443	void	1933	int
1444	poll()	1934	poll()
1445	PROTOTYPE:	1935	PROTOTYPE:
1446	CODE:	1936	CODE:
1447	if (nreqs)
1448	{
1449	poll_wait ();	1937	poll_wait ();
1450	poll_cb (0);	1938	RETVAL = poll_cb ();
1451	}	1939	OUTPUT:
		1940	RETVAL
1452		1941
1453	int	1942	int
1454	poll_fileno()	1943	poll_fileno()
1455	PROTOTYPE:	1944	PROTOTYPE:
1456	CODE:	1945	CODE:
…		…
1460		1949
1461	int	1950	int
1462	poll_cb(...)	1951	poll_cb(...)
1463	PROTOTYPE:	1952	PROTOTYPE:
1464	CODE:	1953	CODE:
1465	RETVAL = poll_cb (0);	1954	RETVAL = poll_cb ();
1466	OUTPUT:
1467	RETVAL
1468
1469	int
1470	poll_some(int max = 0)
1471	PROTOTYPE: $
1472	CODE:
1473	RETVAL = poll_cb (max);
1474	OUTPUT:	1955	OUTPUT:
1475	RETVAL	1956	RETVAL
1476		1957
1477	void	1958	void
1478	poll_wait()	1959	poll_wait()
1479	PROTOTYPE:	1960	PROTOTYPE:
1480	CODE:	1961	CODE:
1481	if (nreqs)
1482	poll_wait ();	1962	poll_wait ();
		1963
		1964	void
		1965	setsig (int signum = SIGIO)
		1966	PROTOTYPE: ;$
		1967	CODE:
		1968	{
		1969	if (block_sig_level)
		1970	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1971
		1972	X_LOCK (reslock);
		1973	main_tid = pthread_self ();
		1974	main_sig = signum;
		1975	X_UNLOCK (reslock);
		1976
		1977	if (main_sig && npending)
		1978	pthread_kill (main_tid, main_sig);
		1979	}
		1980
		1981	void
		1982	aio_block (SV *cb)
		1983	PROTOTYPE: &
		1984	PPCODE:
		1985	{
		1986	int count;
		1987
		1988	block_sig ();
		1989	PUSHMARK (SP);
		1990	PUTBACK;
		1991	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1992	SPAGAIN;
		1993	unblock_sig ();
		1994
		1995	if (SvTRUE (ERRSV))
		1996	croak (0);
		1997
		1998	XSRETURN (count);
		1999	}
1483		2000
1484	int	2001	int
1485	nreqs()	2002	nreqs()
1486	PROTOTYPE:	2003	PROTOTYPE:
1487	CODE:	2004	CODE:
…		…
1491		2008
1492	int	2009	int
1493	nready()	2010	nready()
1494	PROTOTYPE:	2011	PROTOTYPE:
1495	CODE:	2012	CODE:
1496	if (WORDREAD_UNSAFE) LOCK (reqlock);
1497	RETVAL = nready;	2013	RETVAL = get_nready ();
1498	if (WORDREAD_UNSAFE) UNLOCK (reqlock);
1499	OUTPUT:	2014	OUTPUT:
1500	RETVAL	2015	RETVAL
1501		2016
1502	int	2017	int
1503	npending()	2018	npending()
1504	PROTOTYPE:	2019	PROTOTYPE:
1505	CODE:	2020	CODE:
1506	if (WORDREAD_UNSAFE) LOCK (reslock);
1507	RETVAL = npending;	2021	RETVAL = get_npending ();
		2022	OUTPUT:
		2023	RETVAL
		2024
		2025	int
		2026	nthreads()
		2027	PROTOTYPE:
		2028	CODE:
		2029	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		2030	RETVAL = started;
1508	if (WORDREAD_UNSAFE) UNLOCK (reslock);	2031	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1509	OUTPUT:	2032	OUTPUT:
1510	RETVAL	2033	RETVAL
1511		2034
1512	PROTOTYPES: DISABLE	2035	PROTOTYPES: DISABLE
1513		2036
…		…
1531	PPCODE:	2054	PPCODE:
1532	{	2055	{
1533	int i;	2056	int i;
1534	aio_req req;	2057	aio_req req;
1535		2058
		2059	if (main_sig && !block_sig_level)
		2060	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2061
1536	if (grp->fd == 2)	2062	if (grp->int1 == 2)
1537	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2063	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1538		2064
1539	for (i = 1; i < items; ++i )	2065	for (i = 1; i < items; ++i )
1540	{	2066	{
1541	if (GIMME_V != G_VOID)	2067	if (GIMME_V != G_VOID)
…		…
1543		2069
1544	req = SvAIO_REQ (ST (i));	2070	req = SvAIO_REQ (ST (i));
1545		2071
1546	if (req)	2072	if (req)
1547	{	2073	{
1548	++grp->length;	2074	++grp->size;
1549	req->grp = grp;	2075	req->grp = grp;
1550		2076
1551	req->grp_prev = 0;	2077	req->grp_prev = 0;
1552	req->grp_next = grp->grp_first;	2078	req->grp_next = grp->grp_first;
1553		2079
…		…
1576	av = newAV ();	2102	av = newAV ();
1577		2103
1578	for (i = 1; i < items; ++i )	2104	for (i = 1; i < items; ++i )
1579	av_push (av, newSVsv (ST (i)));	2105	av_push (av, newSVsv (ST (i)));
1580		2106
1581	SvREFCNT_dec (grp->data);	2107	SvREFCNT_dec (grp->sv1);
1582	grp->data = (SV *)av;	2108	grp->sv1 = (SV *)av;
1583	}	2109	}
1584		2110
1585	void	2111	void
1586	errno (aio_req grp, int errorno = errno)	2112	errno (aio_req grp, int errorno = errno)
1587	CODE:	2113	CODE:
1588	grp->errorno = errorno;	2114	grp->errorno = errorno;
1589		2115
1590	void	2116	void
1591	limit (aio_req grp, int limit)	2117	limit (aio_req grp, int limit)
1592	CODE:	2118	CODE:
1593	grp->fd2 = limit;	2119	grp->int2 = limit;
1594	aio_grp_feed (grp);	2120	aio_grp_feed (grp);
1595		2121
1596	void	2122	void
1597	feed (aio_req grp, SV *callback=&PL_sv_undef)	2123	feed (aio_req grp, SV *callback=&PL_sv_undef)
1598	CODE:	2124	CODE:
1599	{	2125	{
1600	SvREFCNT_dec (grp->fh2);	2126	SvREFCNT_dec (grp->sv2);
1601	grp->fh2 = newSVsv (callback);	2127	grp->sv2 = newSVsv (callback);
1602		2128
1603	if (grp->fd2 <= 0)	2129	if (grp->int2 <= 0)
1604	grp->fd2 = 2;	2130	grp->int2 = 2;
1605		2131
1606	aio_grp_feed (grp);	2132	aio_grp_feed (grp);
1607	}	2133	}
1608		2134

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