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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.71 by root, Tue Oct 24 16:35:04 2006 UTC vs.
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux
5	# define _GNU_SOURCE
6	#endif
7
8	#define _REENTRANT 1
9		2
10	#include <errno.h>	3	#include <errno.h>
11		4
12	#include "EXTERN.h"	5	#include "EXTERN.h"
13	#include "perl.h"	6	#include "perl.h"
14	#include "XSUB.h"	7	#include "XSUB.h"
15		8
16	#include "autoconf/config.h"
17
18	#include <pthread.h>
19
20	#include <stddef.h>	9	#include <stddef.h>
		10	#include <stdlib.h>
21	#include <errno.h>	11	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	12	#include <sys/types.h>
25	#include <sys/stat.h>	13	#include <sys/stat.h>
26	#include <limits.h>	14	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	15	#include <fcntl.h>
29	#include <signal.h>
30	#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
31		68
32	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
33	# if __linux	70	# if __linux
34	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
35	# elif __freebsd	72	# elif __freebsd
…		…
42	# else	79	# else
43	# error sendfile support requested but not available	80	# error sendfile support requested but not available
44	# endif	81	# endif
45	#endif	82	#endif
46		83
		84	/* number of seconds after which idle threads exit */
		85	#define IDLE_TIMEOUT 10
		86
47	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
48	#ifndef NAME_MAX	88	#ifndef NAME_MAX
49	# define NAME_MAX 4096	89	# define NAME_MAX 4096
50	#endif	90	#endif
51		91
52	#if __ia64
53	# define STACKSIZE 65536
54	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55	# define STACKSIZE PTHREAD_STACK_MIN
56	#else
57	# define STACKSIZE 16384
58	#endif
59
60	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
61	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
62		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
63	#define dBUF \	102	#define dBUF \
64	char *aio_buf; \	103	char *aio_buf; \
65	LOCK (wrklock); \	104	X_LOCK (wrklock); \
66	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	105	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
67	UNLOCK (wrklock); \	106	X_UNLOCK (wrklock); \
68	if (!aio_buf) \	107	if (!aio_buf) \
69	return -1;	108	return -1;
		109
		110	typedef SV SV8; /* byte-sv, used for argument-checking */
70		111
71	enum {	112	enum {
72	REQ_QUIT,	113	REQ_QUIT,
73	REQ_OPEN, REQ_CLOSE,	114	REQ_OPEN, REQ_CLOSE,
74	REQ_READ, REQ_WRITE, REQ_READAHEAD,	115	REQ_READ, REQ_WRITE,
75	REQ_SENDFILE,	116	REQ_READAHEAD, REQ_SENDFILE,
76	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,
77	REQ_FSYNC, REQ_FDATASYNC,	122	REQ_FSYNC, REQ_FDATASYNC,
78	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	123	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79	REQ_READDIR,	124	REQ_MKNOD, REQ_READDIR,
80	REQ_LINK, REQ_SYMLINK,	125	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81	REQ_GROUP, REQ_NOP,	126	REQ_GROUP, REQ_NOP,
82	REQ_BUSY,	127	REQ_BUSY,
83	};	128	};
84		129
85	#define AIO_REQ_KLASS "IO::AIO::REQ"	130	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
87		132
88	typedef struct aio_cb	133	typedef struct aio_cb
89	{	134	{
90	struct aio_cb *volatile next;	135	struct aio_cb *volatile next;
91		136
92	SV *data, *callback;	137	SV *callback;
93	SV *fh, *fh2;	138	SV *sv1, *sv2;
94	void *dataptr, *data2ptr;	139	void *ptr1, *ptr2;
95	Stat_t *statdata;
96	off_t offset;	140	off_t offs;
97	size_t length;	141	size_t size;
98	ssize_t result;	142	ssize_t result;
		143	double nv1, nv2;
99		144
100	STRLEN dataoffset;	145	STRLEN stroffset;
101	int type;	146	int type;
102	int fd, fd2;	147	int int1, int2, int3;
103	int errorno;	148	int errorno;
104	mode_t mode; /* open */	149	mode_t mode; /* open */
105		150
106	unsigned char flags;	151	unsigned char flags;
107	unsigned char pri;	152	unsigned char pri;
…		…
109	SV *self; /* the perl counterpart of this request, if any */	154	SV *self; /* the perl counterpart of this request, if any */
110	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	155	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
111	} aio_cb;	156	} aio_cb;
112		157
113	enum {	158	enum {
114	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) */
115	};	162	};
116		163
117	typedef aio_cb *aio_req;	164	typedef aio_cb *aio_req;
118	typedef aio_cb *aio_req_ornot;	165	typedef aio_cb *aio_req_ornot;
119		166
…		…
124	DEFAULT_PRI = 0,	171	DEFAULT_PRI = 0,
125	PRI_BIAS = -PRI_MIN,	172	PRI_BIAS = -PRI_MIN,
126	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	173	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
127	};	174	};
128		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
129	static int next_pri = DEFAULT_PRI + PRI_BIAS;	222	static int next_pri = DEFAULT_PRI + PRI_BIAS;
130		223
131	static int started, wanted;	224	static unsigned int started, idle, wanted;
132	static volatile int nreqs;
133	static int max_outstanding = 1<<30;
134	static int respipe [2];
135		225
136	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
137	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
138	#else
139	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
140	#endif
141
142	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
143	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
144
145	/* worker threasd management */	226	/* worker threads management */
146	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	227	static mutex_t wrklock = X_MUTEX_INIT;
147		228
148	typedef struct worker {	229	typedef struct worker {
149	/* locked by wrklock */	230	/* locked by wrklock */
150	struct worker *prev, *next;	231	struct worker *prev, *next;
151		232
152	pthread_t tid;	233	thread_t tid;
153		234
154	/* locked by reslock, reqlock or wrklock */	235	/* locked by reslock, reqlock or wrklock */
155	aio_req req; /* currently processed request */	236	aio_req req; /* currently processed request */
156	void *dbuf;	237	void *dbuf;
157	DIR *dirp;	238	DIR *dirp;
…		…
180	wrk->prev->next = wrk->next;	261	wrk->prev->next = wrk->next;
181		262
182	free (wrk);	263	free (wrk);
183	}	264	}
184		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_osf [2], respipe [2] = { -1, -1 };
		270
185	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	271	static mutex_t reslock = X_MUTEX_INIT;
186	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	272	static mutex_t reqlock = X_MUTEX_INIT;
187	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
188		317
189	/*	318	/*
190	* a somewhat faster data structure might be nice, but	319	* a somewhat faster data structure might be nice, but
191	* with 8 priorities this actually needs <20 insns	320	* with 8 priorities this actually needs <20 insns
192	* per shift, the most expensive operation.	321	* per shift, the most expensive operation.
…		…
238	}	367	}
239		368
240	abort ();	369	abort ();
241	}	370	}
242		371
		372	static int poll_cb ();
243	static void req_invoke (aio_req req);	373	static int req_invoke (aio_req req);
		374	static void req_destroy (aio_req req);
244	static void req_free (aio_req req);	375	static void req_cancel (aio_req req);
245		376
246	/* must be called at most once */	377	/* must be called at most once */
247	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
248	{	379	{
249	if (!req->self)	380	if (!req->self)
…		…
267	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
268	}	399	}
269		400
270	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
271	{	402	{
		403	block_sig ();
		404
272	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
273	{	406	{
274	int old_len = grp->length;	407	int old_len = grp->size;
275		408
276	if (grp->fh2 && SvOK (grp->fh2))	409	if (grp->sv2 && SvOK (grp->sv2))
277	{	410	{
278	dSP;	411	dSP;
279		412
280	ENTER;	413	ENTER;
281	SAVETMPS;	414	SAVETMPS;
282	PUSHMARK (SP);	415	PUSHMARK (SP);
283	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	416	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
284	PUTBACK;	417	PUTBACK;
285	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	418	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
286	SPAGAIN;	419	SPAGAIN;
287	FREETMPS;	420	FREETMPS;
288	LEAVE;	421	LEAVE;
289	}	422	}
290		423
291	/* stop if no progress has been made */	424	/* stop if no progress has been made */
292	if (old_len == grp->length)	425	if (old_len == grp->size)
293	{	426	{
294	SvREFCNT_dec (grp->fh2);	427	SvREFCNT_dec (grp->sv2);
295	grp->fh2 = 0;	428	grp->sv2 = 0;
296	break;	429	break;
297	}	430	}
298	}	431	}
		432
		433	unblock_sig ();
299	}	434	}
300		435
301	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
302	{	437	{
303	--grp->length;	438	--grp->size;
304		439
305	/* call feeder, if applicable */	440	/* call feeder, if applicable */
306	aio_grp_feed (grp);	441	aio_grp_feed (grp);
307		442
308	/* finish, if done */	443	/* finish, if done */
309	if (!grp->length && grp->fd)	444	if (!grp->size && grp->int1)
310	{	445	{
		446	block_sig ();
		447
311	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
312	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
313	}	457	}
314	}	458	}
315		459
316	static void poll_wait ()
317	{
318	fd_set rfd;
319
320	while (nreqs)
321	{
322	int size;
323	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
324	LOCK (reslock);
325	#endif
326	size = res_queue.size;
327	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
328	UNLOCK (reslock);
329	#endif
330
331	if (size)
332	return;
333
334	FD_ZERO(&rfd);
335	FD_SET(respipe [0], &rfd);
336
337	select (respipe [0] + 1, &rfd, 0, 0, 0);
338	}
339	}
340
341	static void req_invoke (aio_req req)	460	static int req_invoke (aio_req req)
342	{	461	{
343	dSP;	462	dSP;
		463
		464	if (req->flags & FLAG_SV2_RO_OFF)
		465	SvREADONLY_off (req->sv2);
344		466
345	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
346	{	468	{
347	errno = req->errorno;
348
349	ENTER;	469	ENTER;
350	SAVETMPS;	470	SAVETMPS;
351	PUSHMARK (SP);	471	PUSHMARK (SP);
352	EXTEND (SP, 1);	472	EXTEND (SP, 1);
353		473
…		…
358	SV *rv = &PL_sv_undef;	478	SV *rv = &PL_sv_undef;
359		479
360	if (req->result >= 0)	480	if (req->result >= 0)
361	{	481	{
362	int i;	482	int i;
363	char *buf = req->data2ptr;	483	char *buf = req->ptr2;
364	AV *av = newAV ();	484	AV *av = newAV ();
365		485
366	av_extend (av, req->result - 1);	486	av_extend (av, req->result - 1);
367		487
368	for (i = 0; i < req->result; ++i)	488	for (i = 0; i < req->result; ++i)
…		…
388	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
389	PUTBACK;	509	PUTBACK;
390	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
391	SPAGAIN;	511	SPAGAIN;
392		512
393	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
394
395	PUSHMARK (SP);	514	PUSHMARK (SP);
396	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
397	}	516	}
398	break;	517	break;
399		518
400	case REQ_GROUP:	519	case REQ_GROUP:
401	req->fd = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
402		521
403	if (req->data)	522	if (req->sv1)
404	{	523	{
405	int i;	524	int i;
406	AV *av = (AV *)req->data;	525	AV *av = (AV *)req->sv1;
407		526
408	EXTEND (SP, AvFILL (av) + 1);	527	EXTEND (SP, AvFILL (av) + 1);
409	for (i = 0; i <= AvFILL (av); ++i)	528	for (i = 0; i <= AvFILL (av); ++i)
410	PUSHs (*av_fetch (av, i, 0));	529	PUSHs (*av_fetch (av, i, 0));
411	}	530	}
…		…
413		532
414	case REQ_NOP:	533	case REQ_NOP:
415	case REQ_BUSY:	534	case REQ_BUSY:
416	break;	535	break;
417		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
418	default:	561	default:
419	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
420	break;	563	break;
421	}	564	}
422		565
		566	errno = req->errorno;
423		567
424	PUTBACK;	568	PUTBACK;
425	call_sv (req->callback, G_VOID | G_EVAL);	569	call_sv (req->callback, G_VOID | G_EVAL);
426	SPAGAIN;	570	SPAGAIN;
427		571
…		…
441	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
442		586
443	aio_grp_dec (grp);	587	aio_grp_dec (grp);
444	}	588	}
445		589
446	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
447	{
448	req_free (req);
449	croak (0);
450	}
451	}	591	}
452		592
453	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
454	{	594	{
455	if (req->self)	595	if (req->self)
456	{	596	{
457	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
458	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
459	}	599	}
460		600
461	SvREFCNT_dec (req->data);
462	SvREFCNT_dec (req->fh);	601	SvREFCNT_dec (req->sv1);
463	SvREFCNT_dec (req->fh2);	602	SvREFCNT_dec (req->sv2);
464	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
465	Safefree (req->statdata);
466		604
467	if (req->type == REQ_READDIR)	605	if (req->flags & FLAG_PTR2_FREE)
468	free (req->data2ptr);	606	free (req->ptr2);
469		607
470	Safefree (req);	608	Safefree (req);
471	}	609	}
472		610
		611	static void req_cancel_subs (aio_req grp)
		612	{
		613	aio_req sub;
		614
		615	if (grp->type != REQ_GROUP)
		616	return;
		617
		618	SvREFCNT_dec (grp->sv2);
		619	grp->sv2 = 0;
		620
		621	for (sub = grp->grp_first; sub; sub = sub->grp_next)
		622	req_cancel (sub);
		623	}
		624
473	static void req_cancel (aio_req req)	625	static void req_cancel (aio_req req)
474	{	626	{
475	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
476		628
477	if (req->type == REQ_GROUP)	629	req_cancel_subs (req);
		630	}
		631
		632	#ifdef USE_SOCKETS_AS_HANDLES
		633	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		634	#else
		635	# define TO_SOCKET(x) (x)
		636	#endif
		637
		638	static void
		639	create_respipe ()
		640	{
		641	int old_readfd = respipe [0];
		642
		643	if (respipe [1] >= 0)
		644	respipe_close (TO_SOCKET (respipe [1]));
		645
		646	#ifdef _WIN32
		647	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		648	#else
		649	if (pipe (respipe))
		650	#endif
		651	croak ("unable to initialize result pipe");
		652
		653	if (old_readfd >= 0)
478	{	654	{
479	aio_req sub;	655	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		656	croak ("unable to initialize result pipe(2)");
480		657
481	for (sub = req->grp_first; sub; sub = sub->grp_next)	658	respipe_close (respipe [0]);
482	req_cancel (sub);	659	respipe [0] = old_readfd;
483	}	660	}
484	}
485		661
486	static int poll_cb ()	662	#ifdef _WIN32
487	{	663	int arg = 1;
488	dSP;	664	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
489	int count = 0;	665	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
490	int do_croak = 0;	666	#else
491	aio_req req;	667	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		668	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		669	#endif
		670	croak ("unable to initialize result pipe(3)");
492		671
493	for (;;)	672	respipe_osf [0] = TO_SOCKET (respipe [0]);
494	{	673	respipe_osf [1] = TO_SOCKET (respipe [1]);
495	LOCK (reslock);
496	req = reqq_shift (&res_queue);
497
498	if (req)
499	{
500	if (!res_queue.size)
501	{
502	/* read any signals sent by the worker threads */
503	char buf [32];
504	while (read (respipe [0], buf, 32) == 32)
505	;
506	}
507	}
508
509	UNLOCK (reslock);
510
511	if (!req)
512	break;
513
514	--nreqs;
515
516	if (req->type == REQ_QUIT)
517	started--;
518	else if (req->type == REQ_GROUP && req->length)
519	{
520	req->fd = 1; /* mark request as delayed */
521	continue;
522	}
523	else
524	{
525	if (req->type == REQ_READ)
526	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
527
528	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
529	SvREADONLY_off (req->data);
530
531	if (req->statdata)
532	{
533	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
534	PL_laststatval = req->result;
535	PL_statcache = *(req->statdata);
536	}
537
538	req_invoke (req);
539
540	count++;
541	}
542
543	req_free (req);
544	}
545
546	return count;
547	}	674	}
548		675
549	static void *aio_proc(void *arg);	676	X_THREAD_PROC (aio_proc);
550		677
551	static void start_thread (void)	678	static void start_thread (void)
552	{	679	{
553	worker *wrk = calloc (1, sizeof (worker));	680	worker *wrk = calloc (1, sizeof (worker));
554		681
555	if (!wrk)	682	if (!wrk)
556	croak ("unable to allocate worker thread data");	683	croak ("unable to allocate worker thread data");
557		684
558	sigset_t fullsigset, oldsigset;
559	pthread_attr_t attr;
560
561	pthread_attr_init (&attr);
562	pthread_attr_setstacksize (&attr, STACKSIZE);
563	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
564
565	sigfillset (&fullsigset);
566
567	LOCK (wrklock);	685	X_LOCK (wrklock);
568	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
569		686
570	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	687	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
571	{	688	{
572	wrk->prev = &wrk_first;	689	wrk->prev = &wrk_first;
573	wrk->next = wrk_first.next;	690	wrk->next = wrk_first.next;
574	wrk_first.next->prev = wrk;	691	wrk_first.next->prev = wrk;
575	wrk_first.next = wrk;	692	wrk_first.next = wrk;
576	started++;	693	++started;
577	}	694	}
578	else	695	else
579	free (wrk);	696	free (wrk);
580		697
581	sigprocmask (SIG_SETMASK, &oldsigset, 0);
582	UNLOCK (wrklock);	698	X_UNLOCK (wrklock);
		699	}
		700
		701	static void maybe_start_thread ()
		702	{
		703	if (get_nthreads () >= wanted)
		704	return;
		705
		706	/* todo: maybe use idle here, but might be less exact */
		707	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		708	return;
		709
		710	start_thread ();
583	}	711	}
584		712
585	static void req_send (aio_req req)	713	static void req_send (aio_req req)
586	{	714	{
587	while (started < wanted && nreqs >= started)	715	block_sig ();
588	start_thread ();
589		716
590	++nreqs;	717	++nreqs;
591		718
592	LOCK (reqlock);	719	X_LOCK (reqlock);
		720	++nready;
593	reqq_push (&req_queue, req);	721	reqq_push (&req_queue, req);
594	pthread_cond_signal (&reqwait);	722	X_COND_SIGNAL (reqwait);
595	UNLOCK (reqlock);	723	X_UNLOCK (reqlock);
596		724
597	if (nreqs > max_outstanding)	725	unblock_sig ();
598	for (;;)
599	{
600	poll_cb ();
601		726
602	if (nreqs <= max_outstanding)	727	maybe_start_thread ();
603	break;
604
605	poll_wait ();
606	}
607	}	728	}
608		729
609	static void end_thread (void)	730	static void end_thread (void)
610	{	731	{
611	aio_req req;	732	aio_req req;
…		…
613	Newz (0, req, 1, aio_cb);	734	Newz (0, req, 1, aio_cb);
614		735
615	req->type = REQ_QUIT;	736	req->type = REQ_QUIT;
616	req->pri = PRI_MAX + PRI_BIAS;	737	req->pri = PRI_MAX + PRI_BIAS;
617		738
618	req_send (req);	739	X_LOCK (reqlock);
		740	reqq_push (&req_queue, req);
		741	X_COND_SIGNAL (reqwait);
		742	X_UNLOCK (reqlock);
		743
		744	X_LOCK (wrklock);
		745	--started;
		746	X_UNLOCK (wrklock);
		747	}
		748
		749	static void set_max_idle (int nthreads)
		750	{
		751	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		752	max_idle = nthreads <= 0 ? 1 : nthreads;
		753	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
619	}	754	}
620		755
621	static void min_parallel (int nthreads)	756	static void min_parallel (int nthreads)
622	{	757	{
623	if (wanted < nthreads)	758	if (wanted < nthreads)
624	wanted = nthreads;	759	wanted = nthreads;
625	}	760	}
626		761
627	static void max_parallel (int nthreads)	762	static void max_parallel (int nthreads)
628	{	763	{
629	int cur = started;
630
631	if (wanted > nthreads)	764	if (wanted > nthreads)
632	wanted = nthreads;	765	wanted = nthreads;
633		766
634	while (cur > wanted)	767	while (started > wanted)
		768	end_thread ();
		769	}
		770
		771	static void poll_wait ()
		772	{
		773	fd_set rfd;
		774
		775	while (nreqs)
635	{	776	{
		777	int size;
		778	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		779	size = res_queue.size;
		780	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		781
		782	if (size)
		783	return;
		784
636	end_thread ();	785	maybe_start_thread ();
637	cur--;	786
		787	FD_ZERO (&rfd);
		788	FD_SET (respipe [0], &rfd);
		789
		790	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
638	}	791	}
		792	}
639		793
640	while (started > wanted)	794	static int poll_cb ()
		795	{
		796	dSP;
		797	int count = 0;
		798	int maxreqs = max_poll_reqs;
		799	int do_croak = 0;
		800	struct timeval tv_start, tv_now;
		801	aio_req req;
		802
		803	if (max_poll_time)
		804	gettimeofday (&tv_start, 0);
		805
		806	block_sig ();
		807
		808	for (;;)
641	{	809	{
		810	for (;;)
		811	{
		812	maybe_start_thread ();
		813
		814	X_LOCK (reslock);
		815	req = reqq_shift (&res_queue);
		816
		817	if (req)
		818	{
		819	--npending;
		820
		821	if (!res_queue.size)
		822	{
		823	/* read any signals sent by the worker threads */
		824	char buf [4];
		825	while (respipe_read (respipe [0], buf, 4) == 4)
		826	;
		827	}
		828	}
		829
		830	X_UNLOCK (reslock);
		831
		832	if (!req)
		833	break;
		834
		835	--nreqs;
		836
		837	if (req->type == REQ_GROUP && req->size)
		838	{
		839	req->int1 = 1; /* mark request as delayed */
		840	continue;
		841	}
		842	else
		843	{
		844	if (!req_invoke (req))
		845	{
		846	req_destroy (req);
		847	unblock_sig ();
		848	croak (0);
		849	}
		850
		851	count++;
		852	}
		853
		854	req_destroy (req);
		855
		856	if (maxreqs && !--maxreqs)
		857	break;
		858
		859	if (max_poll_time)
		860	{
		861	gettimeofday (&tv_now, 0);
		862
		863	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		864	break;
		865	}
		866	}
		867
		868	if (nreqs <= max_outstanding)
		869	break;
		870
642	poll_wait ();	871	poll_wait ();
643	poll_cb ();	872
		873	++maxreqs;
644	}	874	}
645	}
646		875
647	static void create_pipe ()	876	unblock_sig ();
648	{	877	return count;
649	if (pipe (respipe))
650	croak ("unable to initialize result pipe");
651
652	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
653	croak ("cannot set result pipe to nonblocking mode");
654
655	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
656	croak ("cannot set result pipe to nonblocking mode");
657	}	878	}
658		879
659	/*****************************************************************************/	880	/*****************************************************************************/
660	/* work around various missing functions */	881	/* work around various missing functions */
661		882
…		…
666	/*	887	/*
667	* make our pread/pwrite safe against themselves, but not against	888	* make our pread/pwrite safe against themselves, but not against
668	* normal read/write by using a mutex. slows down execution a lot,	889	* normal read/write by using a mutex. slows down execution a lot,
669	* but that's your problem, not mine.	890	* but that's your problem, not mine.
670	*/	891	*/
671	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	892	static mutex_t preadwritelock = X_MUTEX_INIT;
672		893
673	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	894	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
674	{	895	{
675	ssize_t res;	896	ssize_t res;
676	off_t ooffset;	897	off_t ooffset;
677		898
678	LOCK (preadwritelock);	899	X_LOCK (preadwritelock);
679	ooffset = lseek (fd, 0, SEEK_CUR);	900	ooffset = lseek (fd, 0, SEEK_CUR);
680	lseek (fd, offset, SEEK_SET);	901	lseek (fd, offset, SEEK_SET);
681	res = read (fd, buf, count);	902	res = read (fd, buf, count);
682	lseek (fd, ooffset, SEEK_SET);	903	lseek (fd, ooffset, SEEK_SET);
683	UNLOCK (preadwritelock);	904	X_UNLOCK (preadwritelock);
684		905
685	return res;	906	return res;
686	}	907	}
687		908
688	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	909	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
689	{	910	{
690	ssize_t res;	911	ssize_t res;
691	off_t ooffset;	912	off_t ooffset;
692		913
693	LOCK (preadwritelock);	914	X_LOCK (preadwritelock);
694	ooffset = lseek (fd, 0, SEEK_CUR);	915	ooffset = lseek (fd, 0, SEEK_CUR);
695	lseek (fd, offset, SEEK_SET);	916	lseek (fd, offset, SEEK_SET);
696	res = write (fd, buf, count);	917	res = write (fd, buf, count);
697	lseek (fd, offset, SEEK_SET);	918	lseek (fd, offset, SEEK_SET);
698	UNLOCK (preadwritelock);	919	X_UNLOCK (preadwritelock);
699		920
700	return res;	921	return res;
701	}	922	}
		923	#endif
		924
		925	#ifndef HAVE_FUTIMES
		926
		927	# define utimes(path,times) aio_utimes (path, times)
		928	# define futimes(fd,times) aio_futimes (fd, times)
		929
		930	int aio_utimes (const char *filename, const struct timeval times[2])
		931	{
		932	if (times)
		933	{
		934	struct utimbuf buf;
		935
		936	buf.actime = times[0].tv_sec;
		937	buf.modtime = times[1].tv_sec;
		938
		939	return utime (filename, &buf);
		940	}
		941	else
		942	return utime (filename, 0);
		943	}
		944
		945	int aio_futimes (int fd, const struct timeval tv[2])
		946	{
		947	errno = ENOSYS;
		948	return -1;
		949	}
		950
702	#endif	951	#endif
703		952
704	#if !HAVE_FDATASYNC	953	#if !HAVE_FDATASYNC
705	# define fdatasync fsync	954	# define fdatasync fsync
706	#endif	955	#endif
707		956
708	#if !HAVE_READAHEAD	957	#if !HAVE_READAHEAD
709	# define readahead aio_readahead	958	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
710		959
711	static ssize_t readahead (int fd, off_t offset, size_t count)	960	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
712	{	961	{
		962	size_t todo = count;
713	dBUF;	963	dBUF;
714		964
715	while (count > 0)	965	while (todo > 0)
716	{	966	{
717	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	967	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
718		968
719	pread (fd, aio_buf, len, offset);	969	pread (fd, aio_buf, len, offset);
720	offset += len;	970	offset += len;
721	count -= len;	971	todo -= len;
722	}	972	}
723		973
724	errno = 0;	974	errno = 0;
		975	return count;
725	}	976	}
		977
726	#endif	978	#endif
727		979
728	#if !HAVE_READDIR_R	980	#if !HAVE_READDIR_R
729	# define readdir_r aio_readdir_r	981	# define readdir_r aio_readdir_r
730		982
731	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	983	static mutex_t readdirlock = X_MUTEX_INIT;
732		984
733	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	985	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
734	{	986	{
735	struct dirent *e;	987	X_DIRENT *e;
736	int errorno;	988	int errorno;
737		989
738	LOCK (readdirlock);	990	X_LOCK (readdirlock);
739		991
740	e = readdir (dirp);	992	e = readdir (dirp);
741	errorno = errno;	993	errorno = errno;
742		994
743	if (e)	995	if (e)
…		…
746	strcpy (ent->d_name, e->d_name);	998	strcpy (ent->d_name, e->d_name);
747	}	999	}
748	else	1000	else
749	*res = 0;	1001	*res = 0;
750		1002
751	UNLOCK (readdirlock);	1003	X_UNLOCK (readdirlock);
752		1004
753	errno = errorno;	1005	errno = errorno;
754	return e ? 0 : -1;	1006	return e ? 0 : -1;
755	}	1007	}
756	#endif	1008	#endif
…		…
775	{	1027	{
776	off_t sbytes;	1028	off_t sbytes;
777	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	1029	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
778		1030
779	if (res < 0 && sbytes)	1031	if (res < 0 && sbytes)
780	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	1032	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
781	res = sbytes;	1033	res = sbytes;
782	}	1034	}
783		1035
784	# elif __hpux	1036	# elif __hpux
785	res = sendfile (ofd, ifd, offset, count, 0, 0);	1037	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
852	static void scandir_ (aio_req req, worker *self)	1104	static void scandir_ (aio_req req, worker *self)
853	{	1105	{
854	DIR *dirp;	1106	DIR *dirp;
855	union	1107	union
856	{	1108	{
857	struct dirent d;	1109	X_DIRENT d;
858	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1110	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
859	} *u;	1111	} *u;
860	struct dirent *entp;	1112	X_DIRENT *entp;
861	char *name, *names;	1113	char *name, *names;
862	int memlen = 4096;	1114	int memlen = 4096;
863	int memofs = 0;	1115	int memofs = 0;
864	int res = 0;	1116	int res = 0;
865	int errorno;
866		1117
867	LOCK (wrklock);	1118	X_LOCK (wrklock);
868	self->dirp = dirp = opendir (req->dataptr);	1119	self->dirp = dirp = opendir (req->ptr1);
869	self->dbuf = u = malloc (sizeof (*u));	1120	self->dbuf = u = malloc (sizeof (*u));
		1121	req->flags |= FLAG_PTR2_FREE;
		1122	req->ptr2 = names = malloc (memlen);
870	UNLOCK (wrklock);	1123	X_UNLOCK (wrklock);
871
872	req->data2ptr = names = malloc (memlen);
873		1124
874	if (dirp && u && names)	1125	if (dirp && u && names)
875	for (;;)	1126	for (;;)
876	{	1127	{
877	errno = 0;	1128	errno = 0;
…		…
889	res++;	1140	res++;
890		1141
891	while (memofs + len > memlen)	1142	while (memofs + len > memlen)
892	{	1143	{
893	memlen *= 2;	1144	memlen *= 2;
894	LOCK (wrklock);	1145	X_LOCK (wrklock);
895	req->data2ptr = names = realloc (names, memlen);	1146	req->ptr2 = names = realloc (names, memlen);
896	UNLOCK (wrklock);	1147	X_UNLOCK (wrklock);
897		1148
898	if (!names)	1149	if (!names)
899	break;	1150	break;
900	}	1151	}
901		1152
…		…
910	req->result = res;	1161	req->result = res;
911	}	1162	}
912		1163
913	/*****************************************************************************/	1164	/*****************************************************************************/
914		1165
915	static void *aio_proc (void *thr_arg)	1166	X_THREAD_PROC (aio_proc)
916	{	1167	{
		1168	{//D
917	aio_req req;	1169	aio_req req;
918	int type;	1170	struct timespec ts;
919	worker *self = (worker *)thr_arg;	1171	worker *self = (worker *)thr_arg;
920		1172
921	do	1173	/* try to distribute timeouts somewhat randomly */
		1174	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1175
		1176	for (;;)
922	{	1177	{
		1178	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1179
923	LOCK (reqlock);	1180	X_LOCK (reqlock);
924		1181
925	for (;;)	1182	for (;;)
926	{	1183	{
927	self->req = req = reqq_shift (&req_queue);	1184	self->req = req = reqq_shift (&req_queue);
928		1185
929	if (req)	1186	if (req)
930	break;	1187	break;
931		1188
932	pthread_cond_wait (&reqwait, &reqlock);	1189	++idle;
		1190
		1191	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1192	== ETIMEDOUT)
		1193	{
		1194	if (idle > max_idle)
		1195	{
		1196	--idle;
		1197	X_UNLOCK (reqlock);
		1198	X_LOCK (wrklock);
		1199	--started;
		1200	X_UNLOCK (wrklock);
		1201	goto quit;
		1202	}
		1203
		1204	/* we are allowed to idle, so do so without any timeout */
		1205	X_COND_WAIT (reqwait, reqlock);
		1206	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1207	}
		1208
		1209	--idle;
933	}	1210	}
934		1211
		1212	--nready;
		1213
935	UNLOCK (reqlock);	1214	X_UNLOCK (reqlock);
936		1215
937	errno = 0; /* strictly unnecessary */	1216	errno = 0; /* strictly unnecessary */
938	type = req->type; /* remember type for QUIT check */
939		1217
940	if (!(req->flags & FLAG_CANCELLED))	1218	if (!(req->flags & FLAG_CANCELLED))
941	switch (type)	1219	switch (req->type)
942	{	1220	{
943	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1221	case REQ_READ: req->result = req->offs >= 0
944	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1222	? pread (req->int1, req->ptr1, req->size, req->offs)
		1223	: read (req->int1, req->ptr1, req->size); break;
		1224	case REQ_WRITE: req->result = req->offs >= 0
		1225	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1226	: write (req->int1, req->ptr1, req->size); break;
945		1227
946	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1228	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
947	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1229	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
948		1230
949	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1231	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
950	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1232	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
951	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1233	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
952		1234
		1235	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1236	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1237	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1238	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1239	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1240	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1241
953	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1242	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
954	case REQ_CLOSE: req->result = close (req->fd); break;	1243	case REQ_CLOSE: req->result = close (req->int1); break;
955	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1244	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
956	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1245	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1246	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
957	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1247	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
958	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1248	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
959	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1249	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1250	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1251	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
960		1252
961	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1253	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
962	case REQ_FSYNC: req->result = fsync (req->fd); break;	1254	case REQ_FSYNC: req->result = fsync (req->int1); break;
963	case REQ_READDIR: scandir_ (req, self); break;	1255	case REQ_READDIR: scandir_ (req, self); break;
964		1256
965	case REQ_BUSY:	1257	case REQ_BUSY:
		1258	#ifdef _WIN32
		1259	Sleep (req->nv1 * 1000.);
		1260	#else
966	{	1261	{
967	struct timeval tv;	1262	struct timeval tv;
968		1263
969	tv.tv_sec = req->fd;	1264	tv.tv_sec = req->nv1;
970	tv.tv_usec = req->fd2;	1265	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
971		1266
972	req->result = select (0, 0, 0, 0, &tv);	1267	req->result = select (0, 0, 0, 0, &tv);
973	}	1268	}
		1269	#endif
		1270	break;
		1271
		1272	case REQ_UTIME:
		1273	case REQ_FUTIME:
		1274	{
		1275	struct timeval tv[2];
		1276	struct timeval *times;
		1277
		1278	if (req->nv1 != -1. || req->nv2 != -1.)
		1279	{
		1280	tv[0].tv_sec = req->nv1;
		1281	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1282	tv[1].tv_sec = req->nv2;
		1283	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1284
		1285	times = tv;
		1286	}
		1287	else
		1288	times = 0;
		1289
		1290
		1291	req->result = req->type == REQ_FUTIME
		1292	? futimes (req->int1, times)
		1293	: utimes (req->ptr1, times);
		1294	}
974		1295
975	case REQ_GROUP:	1296	case REQ_GROUP:
976	case REQ_NOP:	1297	case REQ_NOP:
		1298	break;
		1299
977	case REQ_QUIT:	1300	case REQ_QUIT:
978	break;	1301	goto quit;
979		1302
980	default:	1303	default:
981	req->result = ENOSYS;	1304	req->result = -1;
982	break;	1305	break;
983	}	1306	}
984		1307
985	req->errorno = errno;	1308	req->errorno = errno;
986		1309
987	LOCK (reslock);	1310	X_LOCK (reslock);
		1311
		1312	++npending;
988		1313
989	if (!reqq_push (&res_queue, req))	1314	if (!reqq_push (&res_queue, req))
		1315	{
990	/* write a dummy byte to the pipe so fh becomes ready */	1316	/* write a dummy byte to the pipe so fh becomes ready */
991	write (respipe [1], &respipe, 1);	1317	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1318
		1319	/* optionally signal the main thread asynchronously */
		1320	if (main_sig)
		1321	pthread_kill (main_tid, main_sig);
		1322	}
992		1323
993	self->req = 0;	1324	self->req = 0;
994	worker_clear (self);	1325	worker_clear (self);
995		1326
996	UNLOCK (reslock);	1327	X_UNLOCK (reslock);
997	}	1328	}
998	while (type != REQ_QUIT);
999		1329
		1330	quit:
1000	LOCK (wrklock);	1331	X_LOCK (wrklock);
1001	worker_free (self);	1332	worker_free (self);
1002	UNLOCK (wrklock);	1333	X_UNLOCK (wrklock);
1003		1334
1004	return 0;	1335	return 0;
		1336	}//D
1005	}	1337	}
1006		1338
1007	/*****************************************************************************/	1339	/*****************************************************************************/
1008		1340
1009	static void atfork_prepare (void)	1341	static void atfork_prepare (void)
1010	{	1342	{
1011	LOCK (wrklock);	1343	X_LOCK (wrklock);
1012	LOCK (reqlock);	1344	X_LOCK (reqlock);
1013	LOCK (reslock);	1345	X_LOCK (reslock);
1014	#if !HAVE_PREADWRITE	1346	#if !HAVE_PREADWRITE
1015	LOCK (preadwritelock);	1347	X_LOCK (preadwritelock);
1016	#endif	1348	#endif
1017	#if !HAVE_READDIR_R	1349	#if !HAVE_READDIR_R
1018	LOCK (readdirlock);	1350	X_LOCK (readdirlock);
1019	#endif	1351	#endif
1020	}	1352	}
1021		1353
1022	static void atfork_parent (void)	1354	static void atfork_parent (void)
1023	{	1355	{
1024	#if !HAVE_READDIR_R	1356	#if !HAVE_READDIR_R
1025	UNLOCK (readdirlock);	1357	X_UNLOCK (readdirlock);
1026	#endif	1358	#endif
1027	#if !HAVE_PREADWRITE	1359	#if !HAVE_PREADWRITE
1028	UNLOCK (preadwritelock);	1360	X_UNLOCK (preadwritelock);
1029	#endif	1361	#endif
1030	UNLOCK (reslock);	1362	X_UNLOCK (reslock);
1031	UNLOCK (reqlock);	1363	X_UNLOCK (reqlock);
1032	UNLOCK (wrklock);	1364	X_UNLOCK (wrklock);
1033	}	1365	}
1034		1366
1035	static void atfork_child (void)	1367	static void atfork_child (void)
1036	{	1368	{
1037	aio_req prv;	1369	aio_req prv;
1038		1370
1039	while (prv = reqq_shift (&req_queue))	1371	while (prv = reqq_shift (&req_queue))
1040	req_free (prv);	1372	req_destroy (prv);
1041		1373
1042	while (prv = reqq_shift (&res_queue))	1374	while (prv = reqq_shift (&res_queue))
1043	req_free (prv);	1375	req_destroy (prv);
1044		1376
1045	while (wrk_first.next != &wrk_first)	1377	while (wrk_first.next != &wrk_first)
1046	{	1378	{
1047	worker *wrk = wrk_first.next;	1379	worker *wrk = wrk_first.next;
1048		1380
1049	if (wrk->req)	1381	if (wrk->req)
1050	req_free (wrk->req);	1382	req_destroy (wrk->req);
1051		1383
1052	worker_clear (wrk);	1384	worker_clear (wrk);
1053	worker_free (wrk);	1385	worker_free (wrk);
1054	}	1386	}
1055		1387
1056	started = 0;	1388	started = 0;
		1389	idle = 0;
1057	nreqs = 0;	1390	nreqs = 0;
		1391	nready = 0;
		1392	npending = 0;
1058		1393
1059	close (respipe [0]);
1060	close (respipe [1]);
1061	create_pipe ();	1394	create_respipe ();
1062		1395
1063	atfork_parent ();	1396	atfork_parent ();
1064	}	1397	}
1065		1398
1066	#define dREQ \	1399	#define dREQ \
…		…
1089	PROTOTYPES: ENABLE	1422	PROTOTYPES: ENABLE
1090		1423
1091	BOOT:	1424	BOOT:
1092	{	1425	{
1093	HV *stash = gv_stashpv ("IO::AIO", 1);	1426	HV *stash = gv_stashpv ("IO::AIO", 1);
		1427
1094	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1428	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1095	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1429	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1096	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1430	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1431	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1432	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1433	#ifdef _WIN32
		1434	X_MUTEX_CHECK (wrklock);
		1435	X_MUTEX_CHECK (reslock);
		1436	X_MUTEX_CHECK (reqlock);
		1437	X_MUTEX_CHECK (reqwait);
		1438	X_MUTEX_CHECK (preadwritelock);
		1439	X_MUTEX_CHECK (readdirlock);
1097		1440
1098	create_pipe ();	1441	X_COND_CHECK (reqwait);
		1442	#else
		1443	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1444	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1445	#endif
		1446
		1447	create_respipe ();
		1448
1099	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1449	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1100	}	1450	}
1101		1451
1102	void	1452	void
1103	min_parallel (nthreads)	1453	max_poll_reqs (int nreqs)
1104	int nthreads
1105	PROTOTYPE: $	1454	PROTOTYPE: $
		1455	CODE:
		1456	max_poll_reqs = nreqs;
1106		1457
1107	void	1458	void
1108	max_parallel (nthreads)	1459	max_poll_time (double nseconds)
1109	int nthreads
1110	PROTOTYPE: $	1460	PROTOTYPE: $
		1461	CODE:
		1462	max_poll_time = nseconds * AIO_TICKS;
		1463
		1464	void
		1465	min_parallel (int nthreads)
		1466	PROTOTYPE: $
		1467
		1468	void
		1469	max_parallel (int nthreads)
		1470	PROTOTYPE: $
		1471
		1472	void
		1473	max_idle (int nthreads)
		1474	PROTOTYPE: $
		1475	CODE:
		1476	set_max_idle (nthreads);
1111		1477
1112	int	1478	int
1113	max_outstanding (nreqs)	1479	max_outstanding (int maxreqs)
1114	int nreqs	1480	PROTOTYPE: $
1115	PROTOTYPE: $
1116	CODE:	1481	CODE:
1117	RETVAL = max_outstanding;	1482	RETVAL = max_outstanding;
1118	max_outstanding = nreqs;	1483	max_outstanding = maxreqs;
		1484	OUTPUT:
		1485	RETVAL
1119		1486
1120	void	1487	void
1121	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1488	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1122	SV * pathname
1123	int flags
1124	int mode
1125	SV * callback
1126	PROTOTYPE: $$$;$	1489	PROTOTYPE: $$$;$
1127	PPCODE:	1490	PPCODE:
1128	{	1491	{
1129	dREQ;	1492	dREQ;
1130		1493
1131	req->type = REQ_OPEN;	1494	req->type = REQ_OPEN;
1132	req->data = newSVsv (pathname);	1495	req->sv1 = newSVsv (pathname);
1133	req->dataptr = SvPVbyte_nolen (req->data);	1496	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134	req->fd = flags;	1497	req->int1 = flags;
1135	req->mode = mode;	1498	req->mode = mode;
1136		1499
1137	REQ_SEND;	1500	REQ_SEND;
1138	}	1501	}
1139		1502
1140	void	1503	void
1141	aio_close (fh,callback=&PL_sv_undef)	1504	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1142	SV * fh
1143	SV * callback
1144	PROTOTYPE: $;$	1505	PROTOTYPE: $;$
1145	ALIAS:	1506	ALIAS:
1146	aio_close = REQ_CLOSE	1507	aio_close = REQ_CLOSE
1147	aio_fsync = REQ_FSYNC	1508	aio_fsync = REQ_FSYNC
1148	aio_fdatasync = REQ_FDATASYNC	1509	aio_fdatasync = REQ_FDATASYNC
1149	PPCODE:	1510	PPCODE:
1150	{	1511	{
1151	dREQ;	1512	dREQ;
1152		1513
1153	req->type = ix;	1514	req->type = ix;
1154	req->fh = newSVsv (fh);	1515	req->sv1 = newSVsv (fh);
1155	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1516	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1156		1517
1157	REQ_SEND (req);	1518	REQ_SEND (req);
1158	}	1519	}
1159		1520
1160	void	1521	void
1161	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1522	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1162	SV * fh
1163	UV offset
1164	UV length
1165	SV * data
1166	UV dataoffset
1167	SV * callback
1168	ALIAS:	1523	ALIAS:
1169	aio_read = REQ_READ	1524	aio_read = REQ_READ
1170	aio_write = REQ_WRITE	1525	aio_write = REQ_WRITE
1171	PROTOTYPE: $$$$$;$	1526	PROTOTYPE: $$$$$;$
1172	PPCODE:	1527	PPCODE:
1173	{	1528	{
1174	aio_req req;
1175	STRLEN svlen;	1529	STRLEN svlen;
1176	char *svptr = SvPVbyte (data, svlen);	1530	char *svptr = SvPVbyte (data, svlen);
		1531	UV len = SvUV (length);
1177		1532
1178	SvUPGRADE (data, SVt_PV);	1533	SvUPGRADE (data, SVt_PV);
1179	SvPOK_on (data);	1534	SvPOK_on (data);
1180		1535
1181	if (dataoffset < 0)	1536	if (dataoffset < 0)
1182	dataoffset += svlen;	1537	dataoffset += svlen;
1183		1538
1184	if (dataoffset < 0 || dataoffset > svlen)	1539	if (dataoffset < 0 || dataoffset > svlen)
1185	croak ("data offset outside of string");	1540	croak ("dataoffset outside of data scalar");
1186		1541
1187	if (ix == REQ_WRITE)	1542	if (ix == REQ_WRITE)
1188	{	1543	{
1189	/* write: check length and adjust. */	1544	/* write: check length and adjust. */
1190	if (length < 0 || length + dataoffset > svlen)	1545	if (!SvOK (length) || len + dataoffset > svlen)
1191	length = svlen - dataoffset;	1546	len = svlen - dataoffset;
1192	}	1547	}
1193	else	1548	else
1194	{	1549	{
1195	/* read: grow scalar as necessary */	1550	/* read: grow scalar as necessary */
1196	svptr = SvGROW (data, length + dataoffset);	1551	svptr = SvGROW (data, len + dataoffset + 1);
1197	}	1552	}
1198		1553
1199	if (length < 0)	1554	if (len < 0)
1200	croak ("length must not be negative");	1555	croak ("length must not be negative");
1201		1556
1202	{	1557	{
1203	dREQ;	1558	dREQ;
1204		1559
1205	req->type = ix;	1560	req->type = ix;
1206	req->fh = newSVsv (fh);	1561	req->sv1 = newSVsv (fh);
1207	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1562	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1208	: IoOFP (sv_2io (fh)));	1563	: IoOFP (sv_2io (fh)));
		1564	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1209	req->offset = offset;	1565	req->size = len;
1210	req->length = length;
1211	req->data = SvREFCNT_inc (data);	1566	req->sv2 = SvREFCNT_inc (data);
1212	req->dataptr = (char *)svptr + dataoffset;	1567	req->ptr1 = (char *)svptr + dataoffset;
		1568	req->stroffset = dataoffset;
1213		1569
1214	if (!SvREADONLY (data))	1570	if (!SvREADONLY (data))
1215	{	1571	{
1216	SvREADONLY_on (data);	1572	SvREADONLY_on (data);
1217	req->data2ptr = (void *)data;	1573	req->flags |= FLAG_SV2_RO_OFF;
1218	}	1574	}
1219		1575
1220	REQ_SEND;	1576	REQ_SEND;
1221	}	1577	}
1222	}	1578	}
1223		1579
1224	void	1580	void
		1581	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1582	PROTOTYPE: $$;$
		1583	PPCODE:
		1584	{
		1585	SV *data;
		1586	dREQ;
		1587
		1588	data = newSV (NAME_MAX);
		1589	SvPOK_on (data);
		1590
		1591	req->type = REQ_READLINK;
		1592	req->sv1 = newSVsv (path);
		1593	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1594	req->sv2 = data;
		1595	req->ptr1 = SvPVbyte_nolen (data);
		1596
		1597	REQ_SEND;
		1598	}
		1599
		1600	void
1225	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1601	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1226	SV * out_fh
1227	SV * in_fh
1228	UV in_offset
1229	UV length
1230	SV * callback
1231	PROTOTYPE: $$$$;$	1602	PROTOTYPE: $$$$;$
1232	PPCODE:	1603	PPCODE:
1233	{	1604	{
1234	dREQ;	1605	dREQ;
1235		1606
1236	req->type = REQ_SENDFILE;	1607	req->type = REQ_SENDFILE;
1237	req->fh = newSVsv (out_fh);	1608	req->sv1 = newSVsv (out_fh);
1238	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1609	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1239	req->fh2 = newSVsv (in_fh);	1610	req->sv2 = newSVsv (in_fh);
1240	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1611	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1241	req->offset = in_offset;	1612	req->offs = SvVAL64 (in_offset);
1242	req->length = length;	1613	req->size = length;
1243		1614
1244	REQ_SEND;	1615	REQ_SEND;
1245	}	1616	}
1246		1617
1247	void	1618	void
1248	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1619	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1249	SV * fh
1250	UV offset
1251	IV length
1252	SV * callback
1253	PROTOTYPE: $$$;$	1620	PROTOTYPE: $$$;$
1254	PPCODE:	1621	PPCODE:
1255	{	1622	{
1256	dREQ;	1623	dREQ;
1257		1624
1258	req->type = REQ_READAHEAD;	1625	req->type = REQ_READAHEAD;
1259	req->fh = newSVsv (fh);	1626	req->sv1 = newSVsv (fh);
1260	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1627	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1261	req->offset = offset;	1628	req->offs = SvVAL64 (offset);
1262	req->length = length;	1629	req->size = length;
1263		1630
1264	REQ_SEND;	1631	REQ_SEND;
1265	}	1632	}
1266		1633
1267	void	1634	void
1268	aio_stat (fh_or_path,callback=&PL_sv_undef)	1635	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1269	SV * fh_or_path
1270	SV * callback
1271	ALIAS:	1636	ALIAS:
1272	aio_stat = REQ_STAT	1637	aio_stat = REQ_STAT
1273	aio_lstat = REQ_LSTAT	1638	aio_lstat = REQ_LSTAT
1274	PPCODE:	1639	PPCODE:
1275	{	1640	{
1276	dREQ;	1641	dREQ;
1277		1642
1278	New (0, req->statdata, 1, Stat_t);	1643	req->ptr2 = malloc (sizeof (Stat_t));
1279	if (!req->statdata)	1644	if (!req->ptr2)
1280	{	1645	{
1281	req_free (req);	1646	req_destroy (req);
1282	croak ("out of memory during aio_req->statdata allocation");	1647	croak ("out of memory during aio_stat statdata allocation");
1283	}	1648	}
		1649
		1650	req->flags |= FLAG_PTR2_FREE;
		1651	req->sv1 = newSVsv (fh_or_path);
1284		1652
1285	if (SvPOK (fh_or_path))	1653	if (SvPOK (fh_or_path))
1286	{	1654	{
1287	req->type = ix;	1655	req->type = ix;
1288	req->data = newSVsv (fh_or_path);
1289	req->dataptr = SvPVbyte_nolen (req->data);	1656	req->ptr1 = SvPVbyte_nolen (req->sv1);
1290	}	1657	}
1291	else	1658	else
1292	{	1659	{
1293	req->type = REQ_FSTAT;	1660	req->type = REQ_FSTAT;
1294	req->fh = newSVsv (fh_or_path);
1295	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1661	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1296	}	1662	}
1297		1663
1298	REQ_SEND;	1664	REQ_SEND;
1299	}	1665	}
1300		1666
1301	void	1667	void
		1668	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1669	PPCODE:
		1670	{
		1671	dREQ;
		1672
		1673	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1674	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1675	req->sv1 = newSVsv (fh_or_path);
		1676
		1677	if (SvPOK (fh_or_path))
		1678	{
		1679	req->type = REQ_UTIME;
		1680	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1681	}
		1682	else
		1683	{
		1684	req->type = REQ_FUTIME;
		1685	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1686	}
		1687
		1688	REQ_SEND;
		1689	}
		1690
		1691	void
		1692	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1693	PPCODE:
		1694	{
		1695	dREQ;
		1696
		1697	req->sv1 = newSVsv (fh_or_path);
		1698	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1699
		1700	if (SvPOK (fh_or_path))
		1701	{
		1702	req->type = REQ_TRUNCATE;
		1703	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1704	}
		1705	else
		1706	{
		1707	req->type = REQ_FTRUNCATE;
		1708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1709	}
		1710
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
		1715	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1716	PPCODE:
		1717	{
		1718	dREQ;
		1719
		1720	req->mode = mode;
		1721	req->sv1 = newSVsv (fh_or_path);
		1722
		1723	if (SvPOK (fh_or_path))
		1724	{
		1725	req->type = REQ_CHMOD;
		1726	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1727	}
		1728	else
		1729	{
		1730	req->type = REQ_FCHMOD;
		1731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1732	}
		1733
		1734	REQ_SEND;
		1735	}
		1736
		1737	void
		1738	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1739	PPCODE:
		1740	{
		1741	dREQ;
		1742
		1743	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1744	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1745	req->sv1 = newSVsv (fh_or_path);
		1746
		1747	if (SvPOK (fh_or_path))
		1748	{
		1749	req->type = REQ_CHOWN;
		1750	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1751	}
		1752	else
		1753	{
		1754	req->type = REQ_FCHOWN;
		1755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1756	}
		1757
		1758	REQ_SEND;
		1759	}
		1760
		1761	void
1302	aio_unlink (pathname,callback=&PL_sv_undef)	1762	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1303	SV * pathname
1304	SV * callback
1305	ALIAS:	1763	ALIAS:
1306	aio_unlink = REQ_UNLINK	1764	aio_unlink = REQ_UNLINK
1307	aio_rmdir = REQ_RMDIR	1765	aio_rmdir = REQ_RMDIR
1308	aio_readdir = REQ_READDIR	1766	aio_readdir = REQ_READDIR
1309	PPCODE:	1767	PPCODE:
1310	{	1768	{
1311	dREQ;	1769	dREQ;
1312		1770
1313	req->type = ix;	1771	req->type = ix;
1314	req->data = newSVsv (pathname);	1772	req->sv1 = newSVsv (pathname);
1315	req->dataptr = SvPVbyte_nolen (req->data);	1773	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1774
		1775	REQ_SEND;
		1776	}
		1777
		1778	void
		1779	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1780	PPCODE:
		1781	{
		1782	dREQ;
1316		1783
		1784	req->type = REQ_MKDIR;
		1785	req->sv1 = newSVsv (pathname);
		1786	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1787	req->mode = mode;
		1788
1317	REQ_SEND;	1789	REQ_SEND;
1318	}	1790	}
1319		1791
1320	void	1792	void
1321	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1793	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1322	SV * oldpath
1323	SV * newpath
1324	SV * callback
1325	ALIAS:	1794	ALIAS:
1326	aio_link = REQ_LINK	1795	aio_link = REQ_LINK
1327	aio_symlink = REQ_SYMLINK	1796	aio_symlink = REQ_SYMLINK
1328	aio_rename = REQ_RENAME	1797	aio_rename = REQ_RENAME
1329	PPCODE:	1798	PPCODE:
1330	{	1799	{
1331	dREQ;	1800	dREQ;
1332		1801
1333	req->type = ix;	1802	req->type = ix;
1334	req->fh = newSVsv (oldpath);	1803	req->sv2 = newSVsv (oldpath);
1335	req->data2ptr = SvPVbyte_nolen (req->fh);	1804	req->ptr2 = SvPVbyte_nolen (req->sv2);
1336	req->data = newSVsv (newpath);	1805	req->sv1 = newSVsv (newpath);
1337	req->dataptr = SvPVbyte_nolen (req->data);	1806	req->ptr1 = SvPVbyte_nolen (req->sv1);
1338		1807
1339	REQ_SEND;	1808	REQ_SEND;
1340	}	1809	}
1341		1810
1342	void	1811	void
1343	aio_busy (delay,callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1344	double delay
1345	SV * callback
1346	PPCODE:	1813	PPCODE:
1347	{	1814	{
1348	dREQ;	1815	dREQ;
		1816
		1817	req->type = REQ_MKNOD;
		1818	req->sv1 = newSVsv (pathname);
		1819	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1820	req->mode = (mode_t)mode;
		1821	req->offs = dev;
		1822
		1823	REQ_SEND;
		1824	}
		1825
		1826	void
		1827	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1828	PPCODE:
		1829	{
		1830	dREQ;
1349		1831
1350	req->type = REQ_BUSY;	1832	req->type = REQ_BUSY;
1351	req->fd = delay < 0. ? 0 : delay;	1833	req->nv1 = delay < 0. ? 0. : delay;
1352	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1353		1834
1354	REQ_SEND;	1835	REQ_SEND;
1355	}	1836	}
1356		1837
1357	void	1838	void
1358	aio_group (callback=&PL_sv_undef)	1839	aio_group (SV *callback=&PL_sv_undef)
1359	SV * callback
1360	PROTOTYPE: ;$	1840	PROTOTYPE: ;$
1361	PPCODE:	1841	PPCODE:
1362	{	1842	{
1363	dREQ;	1843	dREQ;
1364		1844
1365	req->type = REQ_GROUP;	1845	req->type = REQ_GROUP;
		1846
1366	req_send (req);	1847	req_send (req);
1367
1368	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1848	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1369	}	1849	}
1370		1850
1371	void	1851	void
1372	aio_nop (callback=&PL_sv_undef)	1852	aio_nop (SV *callback=&PL_sv_undef)
1373	SV * callback
1374	PPCODE:	1853	PPCODE:
1375	{	1854	{
1376	dREQ;	1855	dREQ;
1377		1856
1378	req->type = REQ_NOP;	1857	req->type = REQ_NOP;
1379		1858
1380	REQ_SEND;	1859	REQ_SEND;
1381	}	1860	}
1382		1861
1383	void	1862	int
1384	aioreq_pri (int pri = DEFAULT_PRI)	1863	aioreq_pri (int pri = 0)
1385	CODE:	1864	PROTOTYPE: ;$
		1865	CODE:
		1866	RETVAL = next_pri - PRI_BIAS;
		1867	if (items > 0)
		1868	{
1386	if (pri < PRI_MIN) pri = PRI_MIN;	1869	if (pri < PRI_MIN) pri = PRI_MIN;
1387	if (pri > PRI_MAX) pri = PRI_MAX;	1870	if (pri > PRI_MAX) pri = PRI_MAX;
1388	next_pri = pri + PRI_BIAS;	1871	next_pri = pri + PRI_BIAS;
		1872	}
		1873	OUTPUT:
		1874	RETVAL
1389		1875
1390	void	1876	void
1391	aioreq_nice (int nice = 0)	1877	aioreq_nice (int nice = 0)
1392	CODE:	1878	CODE:
1393	nice = next_pri - nice;	1879	nice = next_pri - nice;
1394	if (nice < PRI_MIN) nice = PRI_MIN;	1880	if (nice < PRI_MIN) nice = PRI_MIN;
1395	if (nice > PRI_MAX) nice = PRI_MAX;	1881	if (nice > PRI_MAX) nice = PRI_MAX;
1396	next_pri = nice + PRI_BIAS;	1882	next_pri = nice + PRI_BIAS;
1397		1883
1398	void	1884	void
1399	flush ()	1885	flush ()
1400	PROTOTYPE:	1886	PROTOTYPE:
1401	CODE:	1887	CODE:
…		…
1403	{	1889	{
1404	poll_wait ();	1890	poll_wait ();
1405	poll_cb ();	1891	poll_cb ();
1406	}	1892	}
1407		1893
1408	void	1894	int
1409	poll()	1895	poll()
1410	PROTOTYPE:	1896	PROTOTYPE:
1411	CODE:	1897	CODE:
1412	if (nreqs)
1413	{
1414	poll_wait ();	1898	poll_wait ();
1415	poll_cb ();	1899	RETVAL = poll_cb ();
1416	}	1900	OUTPUT:
		1901	RETVAL
1417		1902
1418	int	1903	int
1419	poll_fileno()	1904	poll_fileno()
1420	PROTOTYPE:	1905	PROTOTYPE:
1421	CODE:	1906	CODE:
…		…
1433		1918
1434	void	1919	void
1435	poll_wait()	1920	poll_wait()
1436	PROTOTYPE:	1921	PROTOTYPE:
1437	CODE:	1922	CODE:
1438	if (nreqs)
1439	poll_wait ();	1923	poll_wait ();
		1924
		1925	void
		1926	setsig (int signum = SIGIO)
		1927	PROTOTYPE: ;$
		1928	CODE:
		1929	{
		1930	if (block_sig_level)
		1931	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1932
		1933	X_LOCK (reslock);
		1934	main_tid = pthread_self ();
		1935	main_sig = signum;
		1936	X_UNLOCK (reslock);
		1937
		1938	if (main_sig && npending)
		1939	pthread_kill (main_tid, main_sig);
		1940	}
		1941
		1942	void
		1943	aio_block (SV *cb)
		1944	PROTOTYPE: &
		1945	PPCODE:
		1946	{
		1947	int count;
		1948
		1949	block_sig ();
		1950	PUSHMARK (SP);
		1951	PUTBACK;
		1952	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1953	SPAGAIN;
		1954	unblock_sig ();
		1955
		1956	if (SvTRUE (ERRSV))
		1957	croak (0);
		1958
		1959	XSRETURN (count);
		1960	}
1440		1961
1441	int	1962	int
1442	nreqs()	1963	nreqs()
1443	PROTOTYPE:	1964	PROTOTYPE:
1444	CODE:	1965	CODE:
1445	RETVAL = nreqs;	1966	RETVAL = nreqs;
1446	OUTPUT:	1967	OUTPUT:
1447	RETVAL	1968	RETVAL
1448		1969
		1970	int
		1971	nready()
		1972	PROTOTYPE:
		1973	CODE:
		1974	RETVAL = get_nready ();
		1975	OUTPUT:
		1976	RETVAL
		1977
		1978	int
		1979	npending()
		1980	PROTOTYPE:
		1981	CODE:
		1982	RETVAL = get_npending ();
		1983	OUTPUT:
		1984	RETVAL
		1985
		1986	int
		1987	nthreads()
		1988	PROTOTYPE:
		1989	CODE:
		1990	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1991	RETVAL = started;
		1992	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		1993	OUTPUT:
		1994	RETVAL
		1995
1449	PROTOTYPES: DISABLE	1996	PROTOTYPES: DISABLE
1450		1997
1451	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1998	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1452		1999
1453	void	2000	void
…		…
1468	PPCODE:	2015	PPCODE:
1469	{	2016	{
1470	int i;	2017	int i;
1471	aio_req req;	2018	aio_req req;
1472		2019
		2020	if (main_sig && !block_sig_level)
		2021	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2022
1473	if (grp->fd == 2)	2023	if (grp->int1 == 2)
1474	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2024	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1475		2025
1476	for (i = 1; i < items; ++i )	2026	for (i = 1; i < items; ++i )
1477	{	2027	{
1478	if (GIMME_V != G_VOID)	2028	if (GIMME_V != G_VOID)
…		…
1480		2030
1481	req = SvAIO_REQ (ST (i));	2031	req = SvAIO_REQ (ST (i));
1482		2032
1483	if (req)	2033	if (req)
1484	{	2034	{
1485	++grp->length;	2035	++grp->size;
1486	req->grp = grp;	2036	req->grp = grp;
1487		2037
1488	req->grp_prev = 0;	2038	req->grp_prev = 0;
1489	req->grp_next = grp->grp_first;	2039	req->grp_next = grp->grp_first;
1490		2040
…		…
1495	}	2045	}
1496	}	2046	}
1497	}	2047	}
1498		2048
1499	void	2049	void
		2050	cancel_subs (aio_req_ornot req)
		2051	CODE:
		2052	req_cancel_subs (req);
		2053
		2054	void
1500	result (aio_req grp, ...)	2055	result (aio_req grp, ...)
1501	CODE:	2056	CODE:
1502	{	2057	{
1503	int i;	2058	int i;
		2059	AV *av;
		2060
		2061	grp->errorno = errno;
		2062
1504	AV *av = newAV ();	2063	av = newAV ();
1505		2064
1506	for (i = 1; i < items; ++i )	2065	for (i = 1; i < items; ++i )
1507	av_push (av, newSVsv (ST (i)));	2066	av_push (av, newSVsv (ST (i)));
1508		2067
1509	SvREFCNT_dec (grp->data);	2068	SvREFCNT_dec (grp->sv1);
1510	grp->data = (SV *)av;	2069	grp->sv1 = (SV *)av;
1511	}	2070	}
		2071
		2072	void
		2073	errno (aio_req grp, int errorno = errno)
		2074	CODE:
		2075	grp->errorno = errorno;
1512		2076
1513	void	2077	void
1514	limit (aio_req grp, int limit)	2078	limit (aio_req grp, int limit)
1515	CODE:	2079	CODE:
1516	grp->fd2 = limit;	2080	grp->int2 = limit;
1517	aio_grp_feed (grp);	2081	aio_grp_feed (grp);
1518		2082
1519	void	2083	void
1520	feed (aio_req grp, SV *callback=&PL_sv_undef)	2084	feed (aio_req grp, SV *callback=&PL_sv_undef)
1521	CODE:	2085	CODE:
1522	{	2086	{
1523	SvREFCNT_dec (grp->fh2);	2087	SvREFCNT_dec (grp->sv2);
1524	grp->fh2 = newSVsv (callback);	2088	grp->sv2 = newSVsv (callback);
1525		2089
1526	if (grp->fd2 <= 0)	2090	if (grp->int2 <= 0)
1527	grp->fd2 = 2;	2091	grp->int2 = 2;
1528		2092
1529	aio_grp_feed (grp);	2093	aio_grp_feed (grp);
1530	}	2094	}
1531		2095

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