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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 1.104 by root, Sun Jul 8 11:05:36 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
81	#define dBUF \	102	#define dBUF \
82	char *aio_buf; \	103	char *aio_buf; \
83	LOCK (wrklock); \	104	X_LOCK (wrklock); \
84	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	105	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85	UNLOCK (wrklock); \	106	X_UNLOCK (wrklock); \
86	if (!aio_buf) \	107	if (!aio_buf) \
87	return -1;	108	return -1;
		109
		110	typedef SV SV8; /* byte-sv, used for argument-checking */
88		111
89	enum {	112	enum {
90	REQ_QUIT,	113	REQ_QUIT,
91	REQ_OPEN, REQ_CLOSE,	114	REQ_OPEN, REQ_CLOSE,
92	REQ_READ, REQ_WRITE, REQ_READAHEAD,	115	REQ_READ, REQ_WRITE,
93	REQ_SENDFILE,	116	REQ_READAHEAD, REQ_SENDFILE,
94	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	117	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		118	REQ_TRUNCATE, REQ_FTRUNCATE,
		119	REQ_UTIME, REQ_FUTIME,
		120	REQ_CHMOD, REQ_FCHMOD,
		121	REQ_CHOWN, REQ_FCHOWN,
95	REQ_FSYNC, REQ_FDATASYNC,	122	REQ_FSYNC, REQ_FDATASYNC,
96	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	123	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
97	REQ_READDIR,	124	REQ_MKNOD, REQ_READDIR,
98	REQ_LINK, REQ_SYMLINK,	125	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
99	REQ_GROUP, REQ_NOP,	126	REQ_GROUP, REQ_NOP,
100	REQ_BUSY,	127	REQ_BUSY,
101	};	128	};
102		129
103	#define AIO_REQ_KLASS "IO::AIO::REQ"	130	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
105		132
106	typedef struct aio_cb	133	typedef struct aio_cb
107	{	134	{
108	struct aio_cb *volatile next;	135	struct aio_cb *volatile next;
109		136
110	SV *data, *callback;	137	SV *callback;
111	SV *fh, *fh2;	138	SV *sv1, *sv2;
112	void *dataptr, *data2ptr;	139	void *ptr1, *ptr2;
113	Stat_t *statdata;
114	off_t offset;	140	off_t offs;
115	size_t length;	141	size_t size;
116	ssize_t result;	142	ssize_t result;
		143	double nv1, nv2;
117		144
118	STRLEN dataoffset;	145	STRLEN stroffset;
119	int type;	146	int type;
120	int fd, fd2;	147	int int1, int2, int3;
121	int errorno;	148	int errorno;
122	mode_t mode; /* open */	149	mode_t mode; /* open */
123		150
124	unsigned char flags;	151	unsigned char flags;
125	unsigned char pri;	152	unsigned char pri;
…		…
127	SV *self; /* the perl counterpart of this request, if any */	154	SV *self; /* the perl counterpart of this request, if any */
128	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	155	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129	} aio_cb;	156	} aio_cb;
130		157
131	enum {	158	enum {
132	FLAG_CANCELLED = 0x01,	159	FLAG_CANCELLED = 0x01, /* request was cancelled */
		160	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		161	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
133	};	162	};
134		163
135	typedef aio_cb *aio_req;	164	typedef aio_cb *aio_req;
136	typedef aio_cb *aio_req_ornot;	165	typedef aio_cb *aio_req_ornot;
137		166
…		…
142	DEFAULT_PRI = 0,	171	DEFAULT_PRI = 0,
143	PRI_BIAS = -PRI_MIN,	172	PRI_BIAS = -PRI_MIN,
144	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	173	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145	};	174	};
146		175
		176	#define AIO_TICKS ((1000000 + 1023) >> 10)
		177
		178	static unsigned int max_poll_time = 0;
		179	static unsigned int max_poll_reqs = 0;
		180
		181	/* calculcate time difference in ~1/AIO_TICKS of a second */
		182	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		183	{
		184	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		185	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		186	}
		187
		188	static thread_t main_tid;
		189	static int main_sig;
		190	static int block_sig_level;
		191
		192	void block_sig ()
		193	{
		194	sigset_t ss;
		195
		196	if (block_sig_level++)
		197	return;
		198
		199	if (!main_sig)
		200	return;
		201
		202	sigemptyset (&ss);
		203	sigaddset (&ss, main_sig);
		204	pthread_sigmask (SIG_BLOCK, &ss, 0);
		205	}
		206
		207	void unblock_sig ()
		208	{
		209	sigset_t ss;
		210
		211	if (--block_sig_level)
		212	return;
		213
		214	if (!main_sig)
		215	return;
		216
		217	sigemptyset (&ss);
		218	sigaddset (&ss, main_sig);
		219	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		220	}
		221
147	static int next_pri = DEFAULT_PRI + PRI_BIAS;	222	static int next_pri = DEFAULT_PRI + PRI_BIAS;
148		223
149	static unsigned int started, wanted;	224	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		225
163	/* worker threads management */	226	/* worker threads management */
164	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	227	static mutex_t wrklock = X_MUTEX_INIT;
165		228
166	typedef struct worker {	229	typedef struct worker {
167	/* locked by wrklock */	230	/* locked by wrklock */
168	struct worker *prev, *next;	231	struct worker *prev, *next;
169		232
170	pthread_t tid;	233	thread_t tid;
171		234
172	/* locked by reslock, reqlock or wrklock */	235	/* locked by reslock, reqlock or wrklock */
173	aio_req req; /* currently processed request */	236	aio_req req; /* currently processed request */
174	void *dbuf;	237	void *dbuf;
175	DIR *dirp;	238	DIR *dirp;
…		…
198	wrk->prev->next = wrk->next;	261	wrk->prev->next = wrk->next;
199		262
200	free (wrk);	263	free (wrk);
201	}	264	}
202		265
		266	static volatile unsigned int nreqs, nready, npending;
		267	static volatile unsigned int max_idle = 4;
		268	static volatile unsigned int max_outstanding = 0xffffffff;
		269	static int respipe [2], respipe_osf [2];
		270
203	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	271	static mutex_t reslock = X_MUTEX_INIT;
204	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	272	static mutex_t reqlock = X_MUTEX_INIT;
205	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	273	static cond_t reqwait = X_COND_INIT;
		274
		275	#if WORDACCESS_UNSAFE
		276
		277	static unsigned int get_nready ()
		278	{
		279	unsigned int retval;
		280
		281	X_LOCK (reqlock);
		282	retval = nready;
		283	X_UNLOCK (reqlock);
		284
		285	return retval;
		286	}
		287
		288	static unsigned int get_npending ()
		289	{
		290	unsigned int retval;
		291
		292	X_LOCK (reslock);
		293	retval = npending;
		294	X_UNLOCK (reslock);
		295
		296	return retval;
		297	}
		298
		299	static unsigned int get_nthreads ()
		300	{
		301	unsigned int retval;
		302
		303	X_LOCK (wrklock);
		304	retval = started;
		305	X_UNLOCK (wrklock);
		306
		307	return retval;
		308	}
		309
		310	#else
		311
		312	# define get_nready() nready
		313	# define get_npending() npending
		314	# define get_nthreads() started
		315
		316	#endif
206		317
207	/*	318	/*
208	* a somewhat faster data structure might be nice, but	319	* a somewhat faster data structure might be nice, but
209	* with 8 priorities this actually needs <20 insns	320	* with 8 priorities this actually needs <20 insns
210	* per shift, the most expensive operation.	321	* per shift, the most expensive operation.
…		…
256	}	367	}
257		368
258	abort ();	369	abort ();
259	}	370	}
260		371
261	static int poll_cb (int max);	372	static int poll_cb ();
262	static void req_invoke (aio_req req);	373	static int req_invoke (aio_req req);
263	static void req_free (aio_req req);	374	static void req_destroy (aio_req req);
264	static void req_cancel (aio_req req);	375	static void req_cancel (aio_req req);
265		376
266	/* must be called at most once */	377	/* must be called at most once */
267	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
268	{	379	{
…		…
287	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
288	}	399	}
289		400
290	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
291	{	402	{
		403	block_sig ();
		404
292	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
293	{	406	{
294	int old_len = grp->length;	407	int old_len = grp->size;
295		408
296	if (grp->fh2 && SvOK (grp->fh2))	409	if (grp->sv2 && SvOK (grp->sv2))
297	{	410	{
298	dSP;	411	dSP;
299		412
300	ENTER;	413	ENTER;
301	SAVETMPS;	414	SAVETMPS;
302	PUSHMARK (SP);	415	PUSHMARK (SP);
303	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	416	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
304	PUTBACK;	417	PUTBACK;
305	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	418	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
306	SPAGAIN;	419	SPAGAIN;
307	FREETMPS;	420	FREETMPS;
308	LEAVE;	421	LEAVE;
309	}	422	}
310		423
311	/* stop if no progress has been made */	424	/* stop if no progress has been made */
312	if (old_len == grp->length)	425	if (old_len == grp->size)
313	{	426	{
314	SvREFCNT_dec (grp->fh2);	427	SvREFCNT_dec (grp->sv2);
315	grp->fh2 = 0;	428	grp->sv2 = 0;
316	break;	429	break;
317	}	430	}
318	}	431	}
		432
		433	unblock_sig ();
319	}	434	}
320		435
321	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
322	{	437	{
323	--grp->length;	438	--grp->size;
324		439
325	/* call feeder, if applicable */	440	/* call feeder, if applicable */
326	aio_grp_feed (grp);	441	aio_grp_feed (grp);
327		442
328	/* finish, if done */	443	/* finish, if done */
329	if (!grp->length && grp->fd)	444	if (!grp->size && grp->int1)
330	{	445	{
		446	block_sig ();
		447
331	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
332	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
333	}	457	}
334	}	458	}
335		459
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)	460	static int req_invoke (aio_req req)
358	{	461	{
359	dSP;	462	dSP;
		463
		464	if (req->flags & FLAG_SV2_RO_OFF)
		465	SvREADONLY_off (req->sv2);
360		466
361	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
362	{	468	{
363	ENTER;	469	ENTER;
364	SAVETMPS;	470	SAVETMPS;
…		…
372	SV *rv = &PL_sv_undef;	478	SV *rv = &PL_sv_undef;
373		479
374	if (req->result >= 0)	480	if (req->result >= 0)
375	{	481	{
376	int i;	482	int i;
377	char *buf = req->data2ptr;	483	char *buf = req->ptr2;
378	AV *av = newAV ();	484	AV *av = newAV ();
379		485
380	av_extend (av, req->result - 1);	486	av_extend (av, req->result - 1);
381		487
382	for (i = 0; i < req->result; ++i)	488	for (i = 0; i < req->result; ++i)
…		…
402	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
403	PUTBACK;	509	PUTBACK;
404	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
405	SPAGAIN;	511	SPAGAIN;
406		512
407	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
408
409	PUSHMARK (SP);	514	PUSHMARK (SP);
410	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
411	}	516	}
412	break;	517	break;
413		518
414	case REQ_GROUP:	519	case REQ_GROUP:
415	req->fd = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
416		521
417	if (req->data)	522	if (req->sv1)
418	{	523	{
419	int i;	524	int i;
420	AV *av = (AV *)req->data;	525	AV *av = (AV *)req->sv1;
421		526
422	EXTEND (SP, AvFILL (av) + 1);	527	EXTEND (SP, AvFILL (av) + 1);
423	for (i = 0; i <= AvFILL (av); ++i)	528	for (i = 0; i <= AvFILL (av); ++i)
424	PUSHs (*av_fetch (av, i, 0));	529	PUSHs (*av_fetch (av, i, 0));
425	}	530	}
…		…
427		532
428	case REQ_NOP:	533	case REQ_NOP:
429	case REQ_BUSY:	534	case REQ_BUSY:
430	break;	535	break;
431		536
		537	case REQ_READLINK:
		538	if (req->result > 0)
		539	{
		540	SvCUR_set (req->sv2, req->result);
		541	*SvEND (req->sv2) = 0;
		542	PUSHs (req->sv2);
		543	}
		544	break;
		545
		546	case REQ_STAT:
		547	case REQ_LSTAT:
		548	case REQ_FSTAT:
		549	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		550	PL_laststatval = req->result;
		551	PL_statcache = *(Stat_t *)(req->ptr2);
		552	PUSHs (sv_2mortal (newSViv (req->result)));
		553	break;
		554
		555	case REQ_READ:
		556	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		557	*SvEND (req->sv2) = 0;
		558	PUSHs (sv_2mortal (newSViv (req->result)));
		559	break;
		560
432	default:	561	default:
433	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
434	break;	563	break;
435	}	564	}
436		565
…		…
456	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
457		586
458	aio_grp_dec (grp);	587	aio_grp_dec (grp);
459	}	588	}
460		589
461	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
462	{
463	req_free (req);
464	croak (0);
465	}
466	}	591	}
467		592
468	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
469	{	594	{
470	if (req->self)	595	if (req->self)
471	{	596	{
472	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
473	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
474	}	599	}
475		600
476	SvREFCNT_dec (req->data);
477	SvREFCNT_dec (req->fh);	601	SvREFCNT_dec (req->sv1);
478	SvREFCNT_dec (req->fh2);	602	SvREFCNT_dec (req->sv2);
479	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
480	Safefree (req->statdata);
481		604
482	if (req->type == REQ_READDIR)	605	if (req->flags & FLAG_PTR2_FREE)
483	free (req->data2ptr);	606	free (req->ptr2);
484		607
485	Safefree (req);	608	Safefree (req);
486	}	609	}
487		610
488	static void req_cancel_subs (aio_req grp)	611	static void req_cancel_subs (aio_req grp)
…		…
490	aio_req sub;	613	aio_req sub;
491		614
492	if (grp->type != REQ_GROUP)	615	if (grp->type != REQ_GROUP)
493	return;	616	return;
494		617
495	SvREFCNT_dec (grp->fh2);	618	SvREFCNT_dec (grp->sv2);
496	grp->fh2 = 0;	619	grp->sv2 = 0;
497		620
498	for (sub = grp->grp_first; sub; sub = sub->grp_next)	621	for (sub = grp->grp_first; sub; sub = sub->grp_next)
499	req_cancel (sub);	622	req_cancel (sub);
500	}	623	}
501		624
…		…
504	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
505		628
506	req_cancel_subs (req);	629	req_cancel_subs (req);
507	}	630	}
508		631
509	static int poll_cb (int max)	632	#ifdef USE_SOCKETS_AS_HANDLES
510	{	633	# define TO_SOCKET(x) (win32_get_osfhandle (x))
511	dSP;	634	#else
512	int count = 0;	635	# define TO_SOCKET(x) (x)
513	int do_croak = 0;	636	#endif
514	aio_req req;
515		637
516	for (;;)	638	static void
517	{	639	create_pipe (int fd[2])
518	while (max <= 0 || count < max)	640	{
519	{	641	#ifdef _WIN32
520	LOCK (reslock);	642	int arg = 1;
521	req = reqq_shift (&res_queue);	643	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
		644	|| ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
		645	|| ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
		646	#else
		647	if (pipe (fd)
		648	|| fcntl (fd [0], F_SETFL, O_NONBLOCK)
		649	|| fcntl (fd [1], F_SETFL, O_NONBLOCK))
		650	#endif
		651	croak ("unable to initialize result pipe");
522		652
523	if (req)	653	respipe_osf [0] = TO_SOCKET (respipe [0]);
524	{	654	respipe_osf [1] = TO_SOCKET (respipe [1]);
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	}
580
581	return count;
582	}	655	}
583		656
584	static void *aio_proc(void *arg);	657	X_THREAD_PROC (aio_proc);
585		658
586	static void start_thread (void)	659	static void start_thread (void)
587	{	660	{
588	sigset_t fullsigset, oldsigset;
589	pthread_attr_t attr;
590
591	worker *wrk = calloc (1, sizeof (worker));	661	worker *wrk = calloc (1, sizeof (worker));
592		662
593	if (!wrk)	663	if (!wrk)
594	croak ("unable to allocate worker thread data");	664	croak ("unable to allocate worker thread data");
595		665
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);	666	X_LOCK (wrklock);
603	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
604		667
605	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	668	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
606	{	669	{
607	wrk->prev = &wrk_first;	670	wrk->prev = &wrk_first;
608	wrk->next = wrk_first.next;	671	wrk->next = wrk_first.next;
609	wrk_first.next->prev = wrk;	672	wrk_first.next->prev = wrk;
610	wrk_first.next = wrk;	673	wrk_first.next = wrk;
611	++started;	674	++started;
612	}	675	}
613	else	676	else
614	free (wrk);	677	free (wrk);
615		678
616	sigprocmask (SIG_SETMASK, &oldsigset, 0);
617	UNLOCK (wrklock);	679	X_UNLOCK (wrklock);
		680	}
		681
		682	static void maybe_start_thread ()
		683	{
		684	if (get_nthreads () >= wanted)
		685	return;
		686
		687	/* todo: maybe use idle here, but might be less exact */
		688	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		689	return;
		690
		691	start_thread ();
618	}	692	}
619		693
620	static void req_send (aio_req req)	694	static void req_send (aio_req req)
621	{	695	{
622	while (started < wanted && nreqs >= started)	696	block_sig ();
623	start_thread ();
624		697
625	++nreqs;	698	++nreqs;
626		699
627	LOCK (reqlock);	700	X_LOCK (reqlock);
628	++nready;	701	++nready;
629	reqq_push (&req_queue, req);	702	reqq_push (&req_queue, req);
630	pthread_cond_signal (&reqwait);	703	X_COND_SIGNAL (reqwait);
631	UNLOCK (reqlock);	704	X_UNLOCK (reqlock);
		705
		706	unblock_sig ();
		707
		708	maybe_start_thread ();
632	}	709	}
633		710
634	static void end_thread (void)	711	static void end_thread (void)
635	{	712	{
636	aio_req req;	713	aio_req req;
…		…
638	Newz (0, req, 1, aio_cb);	715	Newz (0, req, 1, aio_cb);
639		716
640	req->type = REQ_QUIT;	717	req->type = REQ_QUIT;
641	req->pri = PRI_MAX + PRI_BIAS;	718	req->pri = PRI_MAX + PRI_BIAS;
642		719
643	req_send (req);	720	X_LOCK (reqlock);
		721	reqq_push (&req_queue, req);
		722	X_COND_SIGNAL (reqwait);
		723	X_UNLOCK (reqlock);
		724
		725	X_LOCK (wrklock);
		726	--started;
		727	X_UNLOCK (wrklock);
		728	}
		729
		730	static void set_max_idle (int nthreads)
		731	{
		732	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		733	max_idle = nthreads <= 0 ? 1 : nthreads;
		734	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
644	}	735	}
645		736
646	static void min_parallel (int nthreads)	737	static void min_parallel (int nthreads)
647	{	738	{
648	if (wanted < nthreads)	739	if (wanted < nthreads)
649	wanted = nthreads;	740	wanted = nthreads;
650	}	741	}
651		742
652	static void max_parallel (int nthreads)	743	static void max_parallel (int nthreads)
653	{	744	{
654	int cur = started;
655
656	if (wanted > nthreads)	745	if (wanted > nthreads)
657	wanted = nthreads;	746	wanted = nthreads;
658		747
659	while (cur > wanted)	748	while (started > wanted)
		749	end_thread ();
		750	}
		751
		752	static void poll_wait ()
		753	{
		754	fd_set rfd;
		755
		756	while (nreqs)
660	{	757	{
		758	int size;
		759	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		760	size = res_queue.size;
		761	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		762
		763	if (size)
		764	return;
		765
661	end_thread ();	766	maybe_start_thread ();
662	cur--;	767
		768	FD_ZERO (&rfd);
		769	FD_SET (respipe [0], &rfd);
		770
		771	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
663	}	772	}
		773	}
664		774
665	while (started > wanted)	775	static int poll_cb ()
		776	{
		777	dSP;
		778	int count = 0;
		779	int maxreqs = max_poll_reqs;
		780	int do_croak = 0;
		781	struct timeval tv_start, tv_now;
		782	aio_req req;
		783
		784	if (max_poll_time)
		785	gettimeofday (&tv_start, 0);
		786
		787	block_sig ();
		788
		789	for (;;)
666	{	790	{
		791	for (;;)
		792	{
		793	maybe_start_thread ();
		794
		795	X_LOCK (reslock);
		796	req = reqq_shift (&res_queue);
		797
		798	if (req)
		799	{
		800	--npending;
		801
		802	if (!res_queue.size)
		803	{
		804	/* read any signals sent by the worker threads */
		805	char buf [4];
		806	while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
		807	;
		808	}
		809	}
		810
		811	X_UNLOCK (reslock);
		812
		813	if (!req)
		814	break;
		815
		816	--nreqs;
		817
		818	if (req->type == REQ_GROUP && req->size)
		819	{
		820	req->int1 = 1; /* mark request as delayed */
		821	continue;
		822	}
		823	else
		824	{
		825	if (!req_invoke (req))
		826	{
		827	req_destroy (req);
		828	unblock_sig ();
		829	croak (0);
		830	}
		831
		832	count++;
		833	}
		834
		835	req_destroy (req);
		836
		837	if (maxreqs && !--maxreqs)
		838	break;
		839
		840	if (max_poll_time)
		841	{
		842	gettimeofday (&tv_now, 0);
		843
		844	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		845	break;
		846	}
		847	}
		848
		849	if (nreqs <= max_outstanding)
		850	break;
		851
667	poll_wait ();	852	poll_wait ();
668	poll_cb (0);	853
		854	++maxreqs;
669	}	855	}
670	}
671		856
672	static void create_pipe ()	857	unblock_sig ();
673	{	858	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	}	859	}
683		860
684	/*****************************************************************************/	861	/*****************************************************************************/
685	/* work around various missing functions */	862	/* work around various missing functions */
686		863
…		…
691	/*	868	/*
692	* make our pread/pwrite safe against themselves, but not against	869	* make our pread/pwrite safe against themselves, but not against
693	* normal read/write by using a mutex. slows down execution a lot,	870	* normal read/write by using a mutex. slows down execution a lot,
694	* but that's your problem, not mine.	871	* but that's your problem, not mine.
695	*/	872	*/
696	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	873	static mutex_t preadwritelock = X_MUTEX_INIT;
697		874
698	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	875	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
699	{	876	{
700	ssize_t res;	877	ssize_t res;
701	off_t ooffset;	878	off_t ooffset;
702		879
703	LOCK (preadwritelock);	880	X_LOCK (preadwritelock);
704	ooffset = lseek (fd, 0, SEEK_CUR);	881	ooffset = lseek (fd, 0, SEEK_CUR);
705	lseek (fd, offset, SEEK_SET);	882	lseek (fd, offset, SEEK_SET);
706	res = read (fd, buf, count);	883	res = read (fd, buf, count);
707	lseek (fd, ooffset, SEEK_SET);	884	lseek (fd, ooffset, SEEK_SET);
708	UNLOCK (preadwritelock);	885	X_UNLOCK (preadwritelock);
709		886
710	return res;	887	return res;
711	}	888	}
712		889
713	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	890	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
714	{	891	{
715	ssize_t res;	892	ssize_t res;
716	off_t ooffset;	893	off_t ooffset;
717		894
718	LOCK (preadwritelock);	895	X_LOCK (preadwritelock);
719	ooffset = lseek (fd, 0, SEEK_CUR);	896	ooffset = lseek (fd, 0, SEEK_CUR);
720	lseek (fd, offset, SEEK_SET);	897	lseek (fd, offset, SEEK_SET);
721	res = write (fd, buf, count);	898	res = write (fd, buf, count);
722	lseek (fd, offset, SEEK_SET);	899	lseek (fd, offset, SEEK_SET);
723	UNLOCK (preadwritelock);	900	X_UNLOCK (preadwritelock);
724		901
725	return res;	902	return res;
726	}	903	}
		904	#endif
		905
		906	#ifndef HAVE_FUTIMES
		907
		908	# define utimes(path,times) aio_utimes (path, times)
		909	# define futimes(fd,times) aio_futimes (fd, times)
		910
		911	int aio_utimes (const char *filename, const struct timeval times[2])
		912	{
		913	if (times)
		914	{
		915	struct utimbuf buf;
		916
		917	buf.actime = times[0].tv_sec;
		918	buf.modtime = times[1].tv_sec;
		919
		920	return utime (filename, &buf);
		921	}
		922	else
		923	return utime (filename, 0);
		924	}
		925
		926	int aio_futimes (int fd, const struct timeval tv[2])
		927	{
		928	errno = ENOSYS;
		929	return -1;
		930	}
		931
727	#endif	932	#endif
728		933
729	#if !HAVE_FDATASYNC	934	#if !HAVE_FDATASYNC
730	# define fdatasync fsync	935	# define fdatasync fsync
731	#endif	936	#endif
…		…
733	#if !HAVE_READAHEAD	938	#if !HAVE_READAHEAD
734	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	939	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
735		940
736	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	941	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
737	{	942	{
		943	size_t todo = count;
738	dBUF;	944	dBUF;
739		945
740	while (count > 0)	946	while (todo > 0)
741	{	947	{
742	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	948	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
743		949
744	pread (fd, aio_buf, len, offset);	950	pread (fd, aio_buf, len, offset);
745	offset += len;	951	offset += len;
746	count -= len;	952	todo -= len;
747	}	953	}
748		954
749	errno = 0;	955	errno = 0;
		956	return count;
750	}	957	}
751		958
752	#endif	959	#endif
753		960
754	#if !HAVE_READDIR_R	961	#if !HAVE_READDIR_R
755	# define readdir_r aio_readdir_r	962	# define readdir_r aio_readdir_r
756		963
757	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	964	static mutex_t readdirlock = X_MUTEX_INIT;
758		965
759	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	966	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
760	{	967	{
761	struct dirent *e;	968	X_DIRENT *e;
762	int errorno;	969	int errorno;
763		970
764	LOCK (readdirlock);	971	X_LOCK (readdirlock);
765		972
766	e = readdir (dirp);	973	e = readdir (dirp);
767	errorno = errno;	974	errorno = errno;
768		975
769	if (e)	976	if (e)
…		…
772	strcpy (ent->d_name, e->d_name);	979	strcpy (ent->d_name, e->d_name);
773	}	980	}
774	else	981	else
775	*res = 0;	982	*res = 0;
776		983
777	UNLOCK (readdirlock);	984	X_UNLOCK (readdirlock);
778		985
779	errno = errorno;	986	errno = errorno;
780	return e ? 0 : -1;	987	return e ? 0 : -1;
781	}	988	}
782	#endif	989	#endif
…		…
878	static void scandir_ (aio_req req, worker *self)	1085	static void scandir_ (aio_req req, worker *self)
879	{	1086	{
880	DIR *dirp;	1087	DIR *dirp;
881	union	1088	union
882	{	1089	{
883	struct dirent d;	1090	X_DIRENT d;
884	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1091	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
885	} *u;	1092	} *u;
886	struct dirent *entp;	1093	X_DIRENT *entp;
887	char *name, *names;	1094	char *name, *names;
888	int memlen = 4096;	1095	int memlen = 4096;
889	int memofs = 0;	1096	int memofs = 0;
890	int res = 0;	1097	int res = 0;
891	int errorno;
892		1098
893	LOCK (wrklock);	1099	X_LOCK (wrklock);
894	self->dirp = dirp = opendir (req->dataptr);	1100	self->dirp = dirp = opendir (req->ptr1);
895	self->dbuf = u = malloc (sizeof (*u));	1101	self->dbuf = u = malloc (sizeof (*u));
		1102	req->flags |= FLAG_PTR2_FREE;
896	req->data2ptr = names = malloc (memlen);	1103	req->ptr2 = names = malloc (memlen);
897	UNLOCK (wrklock);	1104	X_UNLOCK (wrklock);
898		1105
899	if (dirp && u && names)	1106	if (dirp && u && names)
900	for (;;)	1107	for (;;)
901	{	1108	{
902	errno = 0;	1109	errno = 0;
…		…
914	res++;	1121	res++;
915		1122
916	while (memofs + len > memlen)	1123	while (memofs + len > memlen)
917	{	1124	{
918	memlen *= 2;	1125	memlen *= 2;
919	LOCK (wrklock);	1126	X_LOCK (wrklock);
920	req->data2ptr = names = realloc (names, memlen);	1127	req->ptr2 = names = realloc (names, memlen);
921	UNLOCK (wrklock);	1128	X_UNLOCK (wrklock);
922		1129
923	if (!names)	1130	if (!names)
924	break;	1131	break;
925	}	1132	}
926		1133
…		…
935	req->result = res;	1142	req->result = res;
936	}	1143	}
937		1144
938	/*****************************************************************************/	1145	/*****************************************************************************/
939		1146
940	static void *aio_proc (void *thr_arg)	1147	X_THREAD_PROC (aio_proc)
941	{	1148	{
		1149	{//D
942	aio_req req;	1150	aio_req req;
943	int type;	1151	struct timespec ts;
944	worker *self = (worker *)thr_arg;	1152	worker *self = (worker *)thr_arg;
945		1153
946	do	1154	/* try to distribute timeouts somewhat randomly */
		1155	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1156
		1157	for (;;)
947	{	1158	{
		1159	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1160
948	LOCK (reqlock);	1161	X_LOCK (reqlock);
949		1162
950	for (;;)	1163	for (;;)
951	{	1164	{
952	self->req = req = reqq_shift (&req_queue);	1165	self->req = req = reqq_shift (&req_queue);
953		1166
954	if (req)	1167	if (req)
955	break;	1168	break;
956		1169
957	pthread_cond_wait (&reqwait, &reqlock);	1170	++idle;
		1171
		1172	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1173	== ETIMEDOUT)
		1174	{
		1175	if (idle > max_idle)
		1176	{
		1177	--idle;
		1178	X_UNLOCK (reqlock);
		1179	X_LOCK (wrklock);
		1180	--started;
		1181	X_UNLOCK (wrklock);
		1182	goto quit;
		1183	}
		1184
		1185	/* we are allowed to idle, so do so without any timeout */
		1186	X_COND_WAIT (reqwait, reqlock);
		1187	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1188	}
		1189
		1190	--idle;
958	}	1191	}
959		1192
960	--nready;	1193	--nready;
961		1194
962	UNLOCK (reqlock);	1195	X_UNLOCK (reqlock);
963		1196
964	errno = 0; /* strictly unnecessary */	1197	errno = 0; /* strictly unnecessary */
965	type = req->type; /* remember type for QUIT check */
966		1198
967	if (!(req->flags & FLAG_CANCELLED))	1199	if (!(req->flags & FLAG_CANCELLED))
968	switch (type)	1200	switch (req->type)
969	{	1201	{
970	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1202	case REQ_READ: req->result = req->offs >= 0
971	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1203	? pread (req->int1, req->ptr1, req->size, req->offs)
		1204	: read (req->int1, req->ptr1, req->size); break;
		1205	case REQ_WRITE: req->result = req->offs >= 0
		1206	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1207	: write (req->int1, req->ptr1, req->size); break;
972		1208
973	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1209	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;	1210	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
975		1211
976	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1212	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;	1213	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;	1214	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
979		1215
		1216	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1217	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1218	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1219	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1220	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1221	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1222
980	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1223	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
981	case REQ_CLOSE: req->result = close (req->fd); break;	1224	case REQ_CLOSE: req->result = close (req->int1); break;
982	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1225	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
983	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1226	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1227	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
984	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1228	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
985	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1229	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
986	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1230	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1231	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1232	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
987		1233
988	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1234	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
989	case REQ_FSYNC: req->result = fsync (req->fd); break;	1235	case REQ_FSYNC: req->result = fsync (req->int1); break;
990	case REQ_READDIR: scandir_ (req, self); break;	1236	case REQ_READDIR: scandir_ (req, self); break;
991		1237
992	case REQ_BUSY:	1238	case REQ_BUSY:
		1239	#ifdef _WIN32
		1240	Sleep (req->nv1 * 1000.);
		1241	#else
993	{	1242	{
994	struct timeval tv;	1243	struct timeval tv;
995		1244
996	tv.tv_sec = req->fd;	1245	tv.tv_sec = req->nv1;
997	tv.tv_usec = req->fd2;	1246	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
998		1247
999	req->result = select (0, 0, 0, 0, &tv);	1248	req->result = select (0, 0, 0, 0, &tv);
1000	}	1249	}
		1250	#endif
		1251	break;
		1252
		1253	case REQ_UTIME:
		1254	case REQ_FUTIME:
		1255	{
		1256	struct timeval tv[2];
		1257	struct timeval *times;
		1258
		1259	if (req->nv1 != -1. || req->nv2 != -1.)
		1260	{
		1261	tv[0].tv_sec = req->nv1;
		1262	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1263	tv[1].tv_sec = req->nv2;
		1264	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1265
		1266	times = tv;
		1267	}
		1268	else
		1269	times = 0;
		1270
		1271
		1272	req->result = req->type == REQ_FUTIME
		1273	? futimes (req->int1, times)
		1274	: utimes (req->ptr1, times);
		1275	}
1001		1276
1002	case REQ_GROUP:	1277	case REQ_GROUP:
1003	case REQ_NOP:	1278	case REQ_NOP:
		1279	break;
		1280
1004	case REQ_QUIT:	1281	case REQ_QUIT:
1005	break;	1282	goto quit;
1006		1283
1007	default:	1284	default:
1008	req->result = ENOSYS;	1285	req->result = -1;
1009	break;	1286	break;
1010	}	1287	}
1011		1288
1012	req->errorno = errno;	1289	req->errorno = errno;
1013		1290
1014	LOCK (reslock);	1291	X_LOCK (reslock);
1015		1292
1016	++npending;	1293	++npending;
1017		1294
1018	if (!reqq_push (&res_queue, req))	1295	if (!reqq_push (&res_queue, req))
		1296	{
1019	/* write a dummy byte to the pipe so fh becomes ready */	1297	/* write a dummy byte to the pipe so fh becomes ready */
1020	write (respipe [1], &respipe, 1);	1298	send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
		1299
		1300	/* optionally signal the main thread asynchronously */
		1301	if (main_sig)
		1302	pthread_kill (main_tid, main_sig);
		1303	}
1021		1304
1022	self->req = 0;	1305	self->req = 0;
1023	worker_clear (self);	1306	worker_clear (self);
1024		1307
1025	UNLOCK (reslock);	1308	X_UNLOCK (reslock);
1026	}	1309	}
1027	while (type != REQ_QUIT);
1028		1310
		1311	quit:
1029	LOCK (wrklock);	1312	X_LOCK (wrklock);
1030	worker_free (self);	1313	worker_free (self);
1031	UNLOCK (wrklock);	1314	X_UNLOCK (wrklock);
1032		1315
1033	return 0;	1316	return 0;
		1317	}//D
1034	}	1318	}
1035		1319
1036	/*****************************************************************************/	1320	/*****************************************************************************/
1037		1321
1038	static void atfork_prepare (void)	1322	static void atfork_prepare (void)
1039	{	1323	{
1040	LOCK (wrklock);	1324	X_LOCK (wrklock);
1041	LOCK (reqlock);	1325	X_LOCK (reqlock);
1042	LOCK (reslock);	1326	X_LOCK (reslock);
1043	#if !HAVE_PREADWRITE	1327	#if !HAVE_PREADWRITE
1044	LOCK (preadwritelock);	1328	X_LOCK (preadwritelock);
1045	#endif	1329	#endif
1046	#if !HAVE_READDIR_R	1330	#if !HAVE_READDIR_R
1047	LOCK (readdirlock);	1331	X_LOCK (readdirlock);
1048	#endif	1332	#endif
1049	}	1333	}
1050		1334
1051	static void atfork_parent (void)	1335	static void atfork_parent (void)
1052	{	1336	{
1053	#if !HAVE_READDIR_R	1337	#if !HAVE_READDIR_R
1054	UNLOCK (readdirlock);	1338	X_UNLOCK (readdirlock);
1055	#endif	1339	#endif
1056	#if !HAVE_PREADWRITE	1340	#if !HAVE_PREADWRITE
1057	UNLOCK (preadwritelock);	1341	X_UNLOCK (preadwritelock);
1058	#endif	1342	#endif
1059	UNLOCK (reslock);	1343	X_UNLOCK (reslock);
1060	UNLOCK (reqlock);	1344	X_UNLOCK (reqlock);
1061	UNLOCK (wrklock);	1345	X_UNLOCK (wrklock);
1062	}	1346	}
1063		1347
1064	static void atfork_child (void)	1348	static void atfork_child (void)
1065	{	1349	{
1066	aio_req prv;	1350	aio_req prv;
1067		1351
1068	while (prv = reqq_shift (&req_queue))	1352	while (prv = reqq_shift (&req_queue))
1069	req_free (prv);	1353	req_destroy (prv);
1070		1354
1071	while (prv = reqq_shift (&res_queue))	1355	while (prv = reqq_shift (&res_queue))
1072	req_free (prv);	1356	req_destroy (prv);
1073		1357
1074	while (wrk_first.next != &wrk_first)	1358	while (wrk_first.next != &wrk_first)
1075	{	1359	{
1076	worker *wrk = wrk_first.next;	1360	worker *wrk = wrk_first.next;
1077		1361
1078	if (wrk->req)	1362	if (wrk->req)
1079	req_free (wrk->req);	1363	req_destroy (wrk->req);
1080		1364
1081	worker_clear (wrk);	1365	worker_clear (wrk);
1082	worker_free (wrk);	1366	worker_free (wrk);
1083	}	1367	}
1084		1368
1085	started = 0;	1369	started = 0;
		1370	idle = 0;
1086	nreqs = 0;	1371	nreqs = 0;
		1372	nready = 0;
		1373	npending = 0;
1087		1374
1088	close (respipe [0]);	1375	PerlSock_closesocket (respipe [0]);
1089	close (respipe [1]);	1376	PerlSock_closesocket (respipe [1]);
		1377
1090	create_pipe ();	1378	create_pipe (respipe);
1091		1379
1092	atfork_parent ();	1380	atfork_parent ();
1093	}	1381	}
1094		1382
1095	#define dREQ \	1383	#define dREQ \
…		…
1118	PROTOTYPES: ENABLE	1406	PROTOTYPES: ENABLE
1119		1407
1120	BOOT:	1408	BOOT:
1121	{	1409	{
1122	HV *stash = gv_stashpv ("IO::AIO", 1);	1410	HV *stash = gv_stashpv ("IO::AIO", 1);
		1411
1123	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1412	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1124	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1413	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1125	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1414	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1415	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1416	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1417	#ifdef _WIN32
		1418	X_MUTEX_CHECK (wrklock);
		1419	X_MUTEX_CHECK (reslock);
		1420	X_MUTEX_CHECK (reqlock);
		1421	X_MUTEX_CHECK (reqwait);
		1422	X_MUTEX_CHECK (preadwritelock);
		1423	X_MUTEX_CHECK (readdirlock);
1126		1424
1127	create_pipe ();	1425	X_COND_CHECK (reqwait);
		1426	#else
		1427	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1428	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1429	#endif
		1430
		1431	create_pipe (respipe);
		1432
1128	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1433	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1129	}	1434	}
		1435
		1436	void
		1437	max_poll_reqs (int nreqs)
		1438	PROTOTYPE: $
		1439	CODE:
		1440	max_poll_reqs = nreqs;
		1441
		1442	void
		1443	max_poll_time (double nseconds)
		1444	PROTOTYPE: $
		1445	CODE:
		1446	max_poll_time = nseconds * AIO_TICKS;
1130		1447
1131	void	1448	void
1132	min_parallel (int nthreads)	1449	min_parallel (int nthreads)
1133	PROTOTYPE: $	1450	PROTOTYPE: $
1134		1451
1135	void	1452	void
1136	max_parallel (int nthreads)	1453	max_parallel (int nthreads)
1137	PROTOTYPE: $	1454	PROTOTYPE: $
		1455
		1456	void
		1457	max_idle (int nthreads)
		1458	PROTOTYPE: $
		1459	CODE:
		1460	set_max_idle (nthreads);
1138		1461
1139	int	1462	int
1140	max_outstanding (int maxreqs)	1463	max_outstanding (int maxreqs)
1141	PROTOTYPE: $	1464	PROTOTYPE: $
1142	CODE:	1465	CODE:
…		…
1144	max_outstanding = maxreqs;	1467	max_outstanding = maxreqs;
1145	OUTPUT:	1468	OUTPUT:
1146	RETVAL	1469	RETVAL
1147		1470
1148	void	1471	void
1149	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1472	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: $$$;$	1473	PROTOTYPE: $$$;$
1155	PPCODE:	1474	PPCODE:
1156	{	1475	{
1157	dREQ;	1476	dREQ;
1158		1477
1159	req->type = REQ_OPEN;	1478	req->type = REQ_OPEN;
1160	req->data = newSVsv (pathname);	1479	req->sv1 = newSVsv (pathname);
1161	req->dataptr = SvPVbyte_nolen (req->data);	1480	req->ptr1 = SvPVbyte_nolen (req->sv1);
1162	req->fd = flags;	1481	req->int1 = flags;
1163	req->mode = mode;	1482	req->mode = mode;
1164		1483
1165	REQ_SEND;	1484	REQ_SEND;
1166	}	1485	}
1167		1486
1168	void	1487	void
1169	aio_close (fh,callback=&PL_sv_undef)	1488	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1170	SV * fh
1171	SV * callback
1172	PROTOTYPE: $;$	1489	PROTOTYPE: $;$
1173	ALIAS:	1490	ALIAS:
1174	aio_close = REQ_CLOSE	1491	aio_close = REQ_CLOSE
1175	aio_fsync = REQ_FSYNC	1492	aio_fsync = REQ_FSYNC
1176	aio_fdatasync = REQ_FDATASYNC	1493	aio_fdatasync = REQ_FDATASYNC
1177	PPCODE:	1494	PPCODE:
1178	{	1495	{
1179	dREQ;	1496	dREQ;
1180		1497
1181	req->type = ix;	1498	req->type = ix;
1182	req->fh = newSVsv (fh);	1499	req->sv1 = newSVsv (fh);
1183	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1500	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1184		1501
1185	REQ_SEND (req);	1502	REQ_SEND (req);
1186	}	1503	}
1187		1504
1188	void	1505	void
1189	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1506	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:	1507	ALIAS:
1197	aio_read = REQ_READ	1508	aio_read = REQ_READ
1198	aio_write = REQ_WRITE	1509	aio_write = REQ_WRITE
1199	PROTOTYPE: $$$$$;$	1510	PROTOTYPE: $$$$$;$
1200	PPCODE:	1511	PPCODE:
1201	{	1512	{
1202	aio_req req;
1203	STRLEN svlen;	1513	STRLEN svlen;
1204	char *svptr = SvPVbyte (data, svlen);	1514	char *svptr = SvPVbyte (data, svlen);
		1515	UV len = SvUV (length);
1205		1516
1206	SvUPGRADE (data, SVt_PV);	1517	SvUPGRADE (data, SVt_PV);
1207	SvPOK_on (data);	1518	SvPOK_on (data);
1208		1519
1209	if (dataoffset < 0)	1520	if (dataoffset < 0)
1210	dataoffset += svlen;	1521	dataoffset += svlen;
1211		1522
1212	if (dataoffset < 0 || dataoffset > svlen)	1523	if (dataoffset < 0 || dataoffset > svlen)
1213	croak ("data offset outside of string");	1524	croak ("dataoffset outside of data scalar");
1214		1525
1215	if (ix == REQ_WRITE)	1526	if (ix == REQ_WRITE)
1216	{	1527	{
1217	/* write: check length and adjust. */	1528	/* write: check length and adjust. */
1218	if (length < 0 || length + dataoffset > svlen)	1529	if (!SvOK (length) || len + dataoffset > svlen)
1219	length = svlen - dataoffset;	1530	len = svlen - dataoffset;
1220	}	1531	}
1221	else	1532	else
1222	{	1533	{
1223	/* read: grow scalar as necessary */	1534	/* read: grow scalar as necessary */
1224	svptr = SvGROW (data, length + dataoffset);	1535	svptr = SvGROW (data, len + dataoffset + 1);
1225	}	1536	}
1226		1537
1227	if (length < 0)	1538	if (len < 0)
1228	croak ("length must not be negative");	1539	croak ("length must not be negative");
1229		1540
1230	{	1541	{
1231	dREQ;	1542	dREQ;
1232		1543
1233	req->type = ix;	1544	req->type = ix;
1234	req->fh = newSVsv (fh);	1545	req->sv1 = newSVsv (fh);
1235	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1546	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1236	: IoOFP (sv_2io (fh)));	1547	: IoOFP (sv_2io (fh)));
		1548	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237	req->offset = offset;	1549	req->size = len;
1238	req->length = length;
1239	req->data = SvREFCNT_inc (data);	1550	req->sv2 = SvREFCNT_inc (data);
1240	req->dataptr = (char *)svptr + dataoffset;	1551	req->ptr1 = (char *)svptr + dataoffset;
		1552	req->stroffset = dataoffset;
1241		1553
1242	if (!SvREADONLY (data))	1554	if (!SvREADONLY (data))
1243	{	1555	{
1244	SvREADONLY_on (data);	1556	SvREADONLY_on (data);
1245	req->data2ptr = (void *)data;	1557	req->flags |= FLAG_SV2_RO_OFF;
1246	}	1558	}
1247		1559
1248	REQ_SEND;	1560	REQ_SEND;
1249	}	1561	}
1250	}	1562	}
1251		1563
1252	void	1564	void
		1565	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1566	PROTOTYPE: $$;$
		1567	PPCODE:
		1568	{
		1569	SV *data;
		1570	dREQ;
		1571
		1572	data = newSV (NAME_MAX);
		1573	SvPOK_on (data);
		1574
		1575	req->type = REQ_READLINK;
		1576	req->sv1 = newSVsv (path);
		1577	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1578	req->sv2 = data;
		1579	req->ptr1 = SvPVbyte_nolen (data);
		1580
		1581	REQ_SEND;
		1582	}
		1583
		1584	void
1253	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1585	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: $$$$;$	1586	PROTOTYPE: $$$$;$
1260	PPCODE:	1587	PPCODE:
1261	{	1588	{
1262	dREQ;	1589	dREQ;
1263		1590
1264	req->type = REQ_SENDFILE;	1591	req->type = REQ_SENDFILE;
1265	req->fh = newSVsv (out_fh);	1592	req->sv1 = newSVsv (out_fh);
1266	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1593	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1267	req->fh2 = newSVsv (in_fh);	1594	req->sv2 = newSVsv (in_fh);
1268	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1595	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1269	req->offset = in_offset;	1596	req->offs = SvVAL64 (in_offset);
1270	req->length = length;	1597	req->size = length;
1271		1598
1272	REQ_SEND;	1599	REQ_SEND;
1273	}	1600	}
1274		1601
1275	void	1602	void
1276	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1603	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1277	SV * fh
1278	UV offset
1279	IV length
1280	SV * callback
1281	PROTOTYPE: $$$;$	1604	PROTOTYPE: $$$;$
1282	PPCODE:	1605	PPCODE:
1283	{	1606	{
1284	dREQ;	1607	dREQ;
1285		1608
1286	req->type = REQ_READAHEAD;	1609	req->type = REQ_READAHEAD;
1287	req->fh = newSVsv (fh);	1610	req->sv1 = newSVsv (fh);
1288	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1611	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1289	req->offset = offset;	1612	req->offs = SvVAL64 (offset);
1290	req->length = length;	1613	req->size = length;
1291		1614
1292	REQ_SEND;	1615	REQ_SEND;
1293	}	1616	}
1294		1617
1295	void	1618	void
1296	aio_stat (fh_or_path,callback=&PL_sv_undef)	1619	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1297	SV * fh_or_path
1298	SV * callback
1299	ALIAS:	1620	ALIAS:
1300	aio_stat = REQ_STAT	1621	aio_stat = REQ_STAT
1301	aio_lstat = REQ_LSTAT	1622	aio_lstat = REQ_LSTAT
1302	PPCODE:	1623	PPCODE:
1303	{	1624	{
1304	dREQ;	1625	dREQ;
1305		1626
1306	New (0, req->statdata, 1, Stat_t);	1627	req->ptr2 = malloc (sizeof (Stat_t));
1307	if (!req->statdata)	1628	if (!req->ptr2)
1308	{	1629	{
1309	req_free (req);	1630	req_destroy (req);
1310	croak ("out of memory during aio_req->statdata allocation");	1631	croak ("out of memory during aio_stat statdata allocation");
1311	}	1632	}
		1633
		1634	req->flags |= FLAG_PTR2_FREE;
		1635	req->sv1 = newSVsv (fh_or_path);
1312		1636
1313	if (SvPOK (fh_or_path))	1637	if (SvPOK (fh_or_path))
1314	{	1638	{
1315	req->type = ix;	1639	req->type = ix;
1316	req->data = newSVsv (fh_or_path);
1317	req->dataptr = SvPVbyte_nolen (req->data);	1640	req->ptr1 = SvPVbyte_nolen (req->sv1);
1318	}	1641	}
1319	else	1642	else
1320	{	1643	{
1321	req->type = REQ_FSTAT;	1644	req->type = REQ_FSTAT;
1322	req->fh = newSVsv (fh_or_path);
1323	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1645	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1324	}	1646	}
1325		1647
1326	REQ_SEND;	1648	REQ_SEND;
1327	}	1649	}
1328		1650
1329	void	1651	void
		1652	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1653	PPCODE:
		1654	{
		1655	dREQ;
		1656
		1657	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1658	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1659	req->sv1 = newSVsv (fh_or_path);
		1660
		1661	if (SvPOK (fh_or_path))
		1662	{
		1663	req->type = REQ_UTIME;
		1664	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1665	}
		1666	else
		1667	{
		1668	req->type = REQ_FUTIME;
		1669	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1670	}
		1671
		1672	REQ_SEND;
		1673	}
		1674
		1675	void
		1676	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1677	PPCODE:
		1678	{
		1679	dREQ;
		1680
		1681	req->sv1 = newSVsv (fh_or_path);
		1682	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1683
		1684	if (SvPOK (fh_or_path))
		1685	{
		1686	req->type = REQ_TRUNCATE;
		1687	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1688	}
		1689	else
		1690	{
		1691	req->type = REQ_FTRUNCATE;
		1692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1693	}
		1694
		1695	REQ_SEND;
		1696	}
		1697
		1698	void
		1699	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1700	PPCODE:
		1701	{
		1702	dREQ;
		1703
		1704	req->mode = mode;
		1705	req->sv1 = newSVsv (fh_or_path);
		1706
		1707	if (SvPOK (fh_or_path))
		1708	{
		1709	req->type = REQ_CHMOD;
		1710	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1711	}
		1712	else
		1713	{
		1714	req->type = REQ_FCHMOD;
		1715	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1716	}
		1717
		1718	REQ_SEND;
		1719	}
		1720
		1721	void
		1722	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1723	PPCODE:
		1724	{
		1725	dREQ;
		1726
		1727	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1728	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1729	req->sv1 = newSVsv (fh_or_path);
		1730
		1731	if (SvPOK (fh_or_path))
		1732	{
		1733	req->type = REQ_CHOWN;
		1734	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1735	}
		1736	else
		1737	{
		1738	req->type = REQ_FCHOWN;
		1739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1740	}
		1741
		1742	REQ_SEND;
		1743	}
		1744
		1745	void
1330	aio_unlink (pathname,callback=&PL_sv_undef)	1746	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331	SV * pathname
1332	SV * callback
1333	ALIAS:	1747	ALIAS:
1334	aio_unlink = REQ_UNLINK	1748	aio_unlink = REQ_UNLINK
1335	aio_rmdir = REQ_RMDIR	1749	aio_rmdir = REQ_RMDIR
1336	aio_readdir = REQ_READDIR	1750	aio_readdir = REQ_READDIR
1337	PPCODE:	1751	PPCODE:
1338	{	1752	{
1339	dREQ;	1753	dREQ;
1340		1754
1341	req->type = ix;	1755	req->type = ix;
1342	req->data = newSVsv (pathname);	1756	req->sv1 = newSVsv (pathname);
1343	req->dataptr = SvPVbyte_nolen (req->data);	1757	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1758
		1759	REQ_SEND;
		1760	}
		1761
		1762	void
		1763	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1764	PPCODE:
		1765	{
		1766	dREQ;
1344		1767
		1768	req->type = REQ_MKDIR;
		1769	req->sv1 = newSVsv (pathname);
		1770	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1771	req->mode = mode;
		1772
1345	REQ_SEND;	1773	REQ_SEND;
1346	}	1774	}
1347		1775
1348	void	1776	void
1349	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1350	SV * oldpath
1351	SV * newpath
1352	SV * callback
1353	ALIAS:	1778	ALIAS:
1354	aio_link = REQ_LINK	1779	aio_link = REQ_LINK
1355	aio_symlink = REQ_SYMLINK	1780	aio_symlink = REQ_SYMLINK
1356	aio_rename = REQ_RENAME	1781	aio_rename = REQ_RENAME
1357	PPCODE:	1782	PPCODE:
1358	{	1783	{
1359	dREQ;	1784	dREQ;
1360		1785
1361	req->type = ix;	1786	req->type = ix;
1362	req->fh = newSVsv (oldpath);	1787	req->sv2 = newSVsv (oldpath);
1363	req->data2ptr = SvPVbyte_nolen (req->fh);	1788	req->ptr2 = SvPVbyte_nolen (req->sv2);
1364	req->data = newSVsv (newpath);	1789	req->sv1 = newSVsv (newpath);
1365	req->dataptr = SvPVbyte_nolen (req->data);	1790	req->ptr1 = SvPVbyte_nolen (req->sv1);
1366		1791
1367	REQ_SEND;	1792	REQ_SEND;
1368	}	1793	}
1369		1794
1370	void	1795	void
1371	aio_busy (delay,callback=&PL_sv_undef)	1796	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1372	double delay
1373	SV * callback
1374	PPCODE:	1797	PPCODE:
1375	{	1798	{
1376	dREQ;	1799	dREQ;
		1800
		1801	req->type = REQ_MKNOD;
		1802	req->sv1 = newSVsv (pathname);
		1803	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1804	req->mode = (mode_t)mode;
		1805	req->offs = dev;
		1806
		1807	REQ_SEND;
		1808	}
		1809
		1810	void
		1811	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1812	PPCODE:
		1813	{
		1814	dREQ;
1377		1815
1378	req->type = REQ_BUSY;	1816	req->type = REQ_BUSY;
1379	req->fd = delay < 0. ? 0 : delay;	1817	req->nv1 = delay < 0. ? 0. : delay;
1380	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1381		1818
1382	REQ_SEND;	1819	REQ_SEND;
1383	}	1820	}
1384		1821
1385	void	1822	void
1386	aio_group (callback=&PL_sv_undef)	1823	aio_group (SV *callback=&PL_sv_undef)
1387	SV * callback
1388	PROTOTYPE: ;$	1824	PROTOTYPE: ;$
1389	PPCODE:	1825	PPCODE:
1390	{	1826	{
1391	dREQ;	1827	dREQ;
1392		1828
1393	req->type = REQ_GROUP;	1829	req->type = REQ_GROUP;
		1830
1394	req_send (req);	1831	req_send (req);
1395
1396	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1832	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1397	}	1833	}
1398		1834
1399	void	1835	void
1400	aio_nop (callback=&PL_sv_undef)	1836	aio_nop (SV *callback=&PL_sv_undef)
1401	SV * callback
1402	PPCODE:	1837	PPCODE:
1403	{	1838	{
1404	dREQ;	1839	dREQ;
1405		1840
1406	req->type = REQ_NOP;	1841	req->type = REQ_NOP;
…		…
1435	PROTOTYPE:	1870	PROTOTYPE:
1436	CODE:	1871	CODE:
1437	while (nreqs)	1872	while (nreqs)
1438	{	1873	{
1439	poll_wait ();	1874	poll_wait ();
1440	poll_cb (0);	1875	poll_cb ();
1441	}	1876	}
1442		1877
1443	void	1878	int
1444	poll()	1879	poll()
1445	PROTOTYPE:	1880	PROTOTYPE:
1446	CODE:	1881	CODE:
1447	if (nreqs)
1448	{
1449	poll_wait ();	1882	poll_wait ();
1450	poll_cb (0);	1883	RETVAL = poll_cb ();
1451	}	1884	OUTPUT:
		1885	RETVAL
1452		1886
1453	int	1887	int
1454	poll_fileno()	1888	poll_fileno()
1455	PROTOTYPE:	1889	PROTOTYPE:
1456	CODE:	1890	CODE:
…		…
1460		1894
1461	int	1895	int
1462	poll_cb(...)	1896	poll_cb(...)
1463	PROTOTYPE:	1897	PROTOTYPE:
1464	CODE:	1898	CODE:
1465	RETVAL = poll_cb (0);	1899	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:	1900	OUTPUT:
1475	RETVAL	1901	RETVAL
1476		1902
1477	void	1903	void
1478	poll_wait()	1904	poll_wait()
1479	PROTOTYPE:	1905	PROTOTYPE:
1480	CODE:	1906	CODE:
1481	if (nreqs)
1482	poll_wait ();	1907	poll_wait ();
		1908
		1909	void
		1910	setsig (int signum = SIGIO)
		1911	PROTOTYPE: ;$
		1912	CODE:
		1913	{
		1914	if (block_sig_level)
		1915	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1916
		1917	X_LOCK (reslock);
		1918	main_tid = pthread_self ();
		1919	main_sig = signum;
		1920	X_UNLOCK (reslock);
		1921
		1922	if (main_sig && npending)
		1923	pthread_kill (main_tid, main_sig);
		1924	}
		1925
		1926	void
		1927	aio_block (SV *cb)
		1928	PROTOTYPE: &
		1929	PPCODE:
		1930	{
		1931	int count;
		1932
		1933	block_sig ();
		1934	PUSHMARK (SP);
		1935	PUTBACK;
		1936	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1937	SPAGAIN;
		1938	unblock_sig ();
		1939
		1940	if (SvTRUE (ERRSV))
		1941	croak (0);
		1942
		1943	XSRETURN (count);
		1944	}
1483		1945
1484	int	1946	int
1485	nreqs()	1947	nreqs()
1486	PROTOTYPE:	1948	PROTOTYPE:
1487	CODE:	1949	CODE:
…		…
1491		1953
1492	int	1954	int
1493	nready()	1955	nready()
1494	PROTOTYPE:	1956	PROTOTYPE:
1495	CODE:	1957	CODE:
1496	if (WORDREAD_UNSAFE) LOCK (reqlock);
1497	RETVAL = nready;	1958	RETVAL = get_nready ();
1498	if (WORDREAD_UNSAFE) UNLOCK (reqlock);
1499	OUTPUT:	1959	OUTPUT:
1500	RETVAL	1960	RETVAL
1501		1961
1502	int	1962	int
1503	npending()	1963	npending()
1504	PROTOTYPE:	1964	PROTOTYPE:
1505	CODE:	1965	CODE:
1506	if (WORDREAD_UNSAFE) LOCK (reslock);
1507	RETVAL = npending;	1966	RETVAL = get_npending ();
		1967	OUTPUT:
		1968	RETVAL
		1969
		1970	int
		1971	nthreads()
		1972	PROTOTYPE:
		1973	CODE:
		1974	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1975	RETVAL = started;
1508	if (WORDREAD_UNSAFE) UNLOCK (reslock);	1976	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1509	OUTPUT:	1977	OUTPUT:
1510	RETVAL	1978	RETVAL
1511		1979
1512	PROTOTYPES: DISABLE	1980	PROTOTYPES: DISABLE
1513		1981
…		…
1531	PPCODE:	1999	PPCODE:
1532	{	2000	{
1533	int i;	2001	int i;
1534	aio_req req;	2002	aio_req req;
1535		2003
		2004	if (main_sig && !block_sig_level)
		2005	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2006
1536	if (grp->fd == 2)	2007	if (grp->int1 == 2)
1537	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2008	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1538		2009
1539	for (i = 1; i < items; ++i )	2010	for (i = 1; i < items; ++i )
1540	{	2011	{
1541	if (GIMME_V != G_VOID)	2012	if (GIMME_V != G_VOID)
…		…
1543		2014
1544	req = SvAIO_REQ (ST (i));	2015	req = SvAIO_REQ (ST (i));
1545		2016
1546	if (req)	2017	if (req)
1547	{	2018	{
1548	++grp->length;	2019	++grp->size;
1549	req->grp = grp;	2020	req->grp = grp;
1550		2021
1551	req->grp_prev = 0;	2022	req->grp_prev = 0;
1552	req->grp_next = grp->grp_first;	2023	req->grp_next = grp->grp_first;
1553		2024
…		…
1576	av = newAV ();	2047	av = newAV ();
1577		2048
1578	for (i = 1; i < items; ++i )	2049	for (i = 1; i < items; ++i )
1579	av_push (av, newSVsv (ST (i)));	2050	av_push (av, newSVsv (ST (i)));
1580		2051
1581	SvREFCNT_dec (grp->data);	2052	SvREFCNT_dec (grp->sv1);
1582	grp->data = (SV *)av;	2053	grp->sv1 = (SV *)av;
1583	}	2054	}
1584		2055
1585	void	2056	void
1586	errno (aio_req grp, int errorno = errno)	2057	errno (aio_req grp, int errorno = errno)
1587	CODE:	2058	CODE:
1588	grp->errorno = errorno;	2059	grp->errorno = errorno;
1589		2060
1590	void	2061	void
1591	limit (aio_req grp, int limit)	2062	limit (aio_req grp, int limit)
1592	CODE:	2063	CODE:
1593	grp->fd2 = limit;	2064	grp->int2 = limit;
1594	aio_grp_feed (grp);	2065	aio_grp_feed (grp);
1595		2066
1596	void	2067	void
1597	feed (aio_req grp, SV *callback=&PL_sv_undef)	2068	feed (aio_req grp, SV *callback=&PL_sv_undef)
1598	CODE:	2069	CODE:
1599	{	2070	{
1600	SvREFCNT_dec (grp->fh2);	2071	SvREFCNT_dec (grp->sv2);
1601	grp->fh2 = newSVsv (callback);	2072	grp->sv2 = newSVsv (callback);
1602		2073
1603	if (grp->fd2 <= 0)	2074	if (grp->int2 <= 0)
1604	grp->fd2 = 2;	2075	grp->int2 = 2;
1605		2076
1606	aio_grp_feed (grp);	2077	aio_grp_feed (grp);
1607	}	2078	}
1608		2079

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