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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.80 by root, Fri Oct 27 19:17:23 2006 UTC vs.
Revision 1.105 by root, Sun Jul 8 11:12:15 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
151	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153	#else
154	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155	#endif
156
157	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159		225
160	/* worker threads management */	226	/* worker threads management */
161	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	227	static mutex_t wrklock = X_MUTEX_INIT;
162		228
163	typedef struct worker {	229	typedef struct worker {
164	/* locked by wrklock */	230	/* locked by wrklock */
165	struct worker *prev, *next;	231	struct worker *prev, *next;
166		232
167	pthread_t tid;	233	thread_t tid;
168		234
169	/* locked by reslock, reqlock or wrklock */	235	/* locked by reslock, reqlock or wrklock */
170	aio_req req; /* currently processed request */	236	aio_req req; /* currently processed request */
171	void *dbuf;	237	void *dbuf;
172	DIR *dirp;	238	DIR *dirp;
…		…
196		262
197	free (wrk);	263	free (wrk);
198	}	264	}
199		265
200	static volatile unsigned int nreqs, nready, npending;	266	static volatile unsigned int nreqs, nready, npending;
		267	static volatile unsigned int max_idle = 4;
201	static volatile unsigned int max_outstanding = 0xffffffff;	268	static volatile unsigned int max_outstanding = 0xffffffff;
202	static int respipe [2];	269	static int respipe [2], respipe_osf [2];
203		270
204	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	271	static mutex_t reslock = X_MUTEX_INIT;
205	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	272	static mutex_t reqlock = X_MUTEX_INIT;
206	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	273	static cond_t reqwait = X_COND_INIT;
207		274
208	#if WORDREAD_UNSAFE	275	#if WORDACCESS_UNSAFE
209		276
210	static unsigned int get_nready ()	277	static unsigned int get_nready ()
211	{	278	{
212	unsigned int retval;	279	unsigned int retval;
213		280
214	LOCK (reqlock);	281	X_LOCK (reqlock);
215	retval = nready;	282	retval = nready;
216	UNLOCK (reqlock);	283	X_UNLOCK (reqlock);
217		284
218	return retval;	285	return retval;
219	}	286	}
220		287
221	static unsigned int get_npending ()	288	static unsigned int get_npending ()
222	{	289	{
223	unsigned int retval;	290	unsigned int retval;
224		291
225	LOCK (reslock);	292	X_LOCK (reslock);
226	retval = npending;	293	retval = npending;
227	UNLOCK (reslock);	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);
228		306
229	return retval;	307	return retval;
230	}	308	}
231		309
232	#else	310	#else
233		311
234	# define get_nready() nready	312	# define get_nready() nready
235	# define get_npending() npending	313	# define get_npending() npending
		314	# define get_nthreads() started
236		315
237	#endif	316	#endif
238		317
239	/*	318	/*
240	* a somewhat faster data structure might be nice, but	319	* a somewhat faster data structure might be nice, but
…		…
288	}	367	}
289		368
290	abort ();	369	abort ();
291	}	370	}
292		371
293	static int poll_cb (int max);	372	static int poll_cb ();
294	static void req_invoke (aio_req req);	373	static int req_invoke (aio_req req);
295	static void req_free (aio_req req);	374	static void req_destroy (aio_req req);
296	static void req_cancel (aio_req req);	375	static void req_cancel (aio_req req);
297		376
298	/* must be called at most once */	377	/* must be called at most once */
299	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
300	{	379	{
…		…
319	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
320	}	399	}
321		400
322	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
323	{	402	{
		403	block_sig ();
		404
324	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
325	{	406	{
326	int old_len = grp->length;	407	int old_len = grp->size;
327		408
328	if (grp->fh2 && SvOK (grp->fh2))	409	if (grp->sv2 && SvOK (grp->sv2))
329	{	410	{
330	dSP;	411	dSP;
331		412
332	ENTER;	413	ENTER;
333	SAVETMPS;	414	SAVETMPS;
334	PUSHMARK (SP);	415	PUSHMARK (SP);
335	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	416	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
336	PUTBACK;	417	PUTBACK;
337	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	418	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338	SPAGAIN;	419	SPAGAIN;
339	FREETMPS;	420	FREETMPS;
340	LEAVE;	421	LEAVE;
341	}	422	}
342		423
343	/* stop if no progress has been made */	424	/* stop if no progress has been made */
344	if (old_len == grp->length)	425	if (old_len == grp->size)
345	{	426	{
346	SvREFCNT_dec (grp->fh2);	427	SvREFCNT_dec (grp->sv2);
347	grp->fh2 = 0;	428	grp->sv2 = 0;
348	break;	429	break;
349	}	430	}
350	}	431	}
		432
		433	unblock_sig ();
351	}	434	}
352		435
353	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
354	{	437	{
355	--grp->length;	438	--grp->size;
356		439
357	/* call feeder, if applicable */	440	/* call feeder, if applicable */
358	aio_grp_feed (grp);	441	aio_grp_feed (grp);
359		442
360	/* finish, if done */	443	/* finish, if done */
361	if (!grp->length && grp->fd)	444	if (!grp->size && grp->int1)
362	{	445	{
		446	block_sig ();
		447
363	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
364	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
365	}	457	}
366	}	458	}
367		459
368	static void req_invoke (aio_req req)	460	static int req_invoke (aio_req req)
369	{	461	{
370	dSP;	462	dSP;
		463
		464	if (req->flags & FLAG_SV2_RO_OFF)
		465	SvREADONLY_off (req->sv2);
371		466
372	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
373	{	468	{
374	ENTER;	469	ENTER;
375	SAVETMPS;	470	SAVETMPS;
…		…
383	SV *rv = &PL_sv_undef;	478	SV *rv = &PL_sv_undef;
384		479
385	if (req->result >= 0)	480	if (req->result >= 0)
386	{	481	{
387	int i;	482	int i;
388	char *buf = req->data2ptr;	483	char *buf = req->ptr2;
389	AV *av = newAV ();	484	AV *av = newAV ();
390		485
391	av_extend (av, req->result - 1);	486	av_extend (av, req->result - 1);
392		487
393	for (i = 0; i < req->result; ++i)	488	for (i = 0; i < req->result; ++i)
…		…
413	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
414	PUTBACK;	509	PUTBACK;
415	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
416	SPAGAIN;	511	SPAGAIN;
417		512
418	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
419
420	PUSHMARK (SP);	514	PUSHMARK (SP);
421	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
422	}	516	}
423	break;	517	break;
424		518
425	case REQ_GROUP:	519	case REQ_GROUP:
426	req->fd = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
427		521
428	if (req->data)	522	if (req->sv1)
429	{	523	{
430	int i;	524	int i;
431	AV *av = (AV *)req->data;	525	AV *av = (AV *)req->sv1;
432		526
433	EXTEND (SP, AvFILL (av) + 1);	527	EXTEND (SP, AvFILL (av) + 1);
434	for (i = 0; i <= AvFILL (av); ++i)	528	for (i = 0; i <= AvFILL (av); ++i)
435	PUSHs (*av_fetch (av, i, 0));	529	PUSHs (*av_fetch (av, i, 0));
436	}	530	}
…		…
438		532
439	case REQ_NOP:	533	case REQ_NOP:
440	case REQ_BUSY:	534	case REQ_BUSY:
441	break;	535	break;
442		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
443	default:	561	default:
444	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
445	break;	563	break;
446	}	564	}
447		565
…		…
467	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
468		586
469	aio_grp_dec (grp);	587	aio_grp_dec (grp);
470	}	588	}
471		589
472	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
473	{
474	req_free (req);
475	croak (0);
476	}
477	}	591	}
478		592
479	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
480	{	594	{
481	if (req->self)	595	if (req->self)
482	{	596	{
483	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
484	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
485	}	599	}
486		600
487	SvREFCNT_dec (req->data);
488	SvREFCNT_dec (req->fh);	601	SvREFCNT_dec (req->sv1);
489	SvREFCNT_dec (req->fh2);	602	SvREFCNT_dec (req->sv2);
490	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
491	Safefree (req->statdata);
492		604
493	if (req->type == REQ_READDIR)	605	if (req->flags & FLAG_PTR2_FREE)
494	free (req->data2ptr);	606	free (req->ptr2);
495		607
496	Safefree (req);	608	Safefree (req);
497	}	609	}
498		610
499	static void req_cancel_subs (aio_req grp)	611	static void req_cancel_subs (aio_req grp)
…		…
501	aio_req sub;	613	aio_req sub;
502		614
503	if (grp->type != REQ_GROUP)	615	if (grp->type != REQ_GROUP)
504	return;	616	return;
505		617
506	SvREFCNT_dec (grp->fh2);	618	SvREFCNT_dec (grp->sv2);
507	grp->fh2 = 0;	619	grp->sv2 = 0;
508		620
509	for (sub = grp->grp_first; sub; sub = sub->grp_next)	621	for (sub = grp->grp_first; sub; sub = sub->grp_next)
510	req_cancel (sub);	622	req_cancel (sub);
511	}	623	}
512		624
…		…
515	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
516		628
517	req_cancel_subs (req);	629	req_cancel_subs (req);
518	}	630	}
519		631
520	static void *aio_proc(void *arg);	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_pipe (int fd[2])
		640	{
		641	#ifdef _WIN32
		642	int arg = 1;
		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");
		652
		653	respipe_osf [0] = TO_SOCKET (respipe [0]);
		654	respipe_osf [1] = TO_SOCKET (respipe [1]);
		655	}
		656
		657	X_THREAD_PROC (aio_proc);
521		658
522	static void start_thread (void)	659	static void start_thread (void)
523	{	660	{
524	sigset_t fullsigset, oldsigset;
525	pthread_attr_t attr;
526
527	worker *wrk = calloc (1, sizeof (worker));	661	worker *wrk = calloc (1, sizeof (worker));
528		662
529	if (!wrk)	663	if (!wrk)
530	croak ("unable to allocate worker thread data");	664	croak ("unable to allocate worker thread data");
531		665
532	pthread_attr_init (&attr);
533	pthread_attr_setstacksize (&attr, STACKSIZE);
534	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535	#ifdef PTHREAD_SCOPE_PROCESS
536	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537	#endif
538
539	sigfillset (&fullsigset);
540
541	LOCK (wrklock);	666	X_LOCK (wrklock);
542	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543		667
544	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	668	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
545	{	669	{
546	wrk->prev = &wrk_first;	670	wrk->prev = &wrk_first;
547	wrk->next = wrk_first.next;	671	wrk->next = wrk_first.next;
548	wrk_first.next->prev = wrk;	672	wrk_first.next->prev = wrk;
549	wrk_first.next = wrk;	673	wrk_first.next = wrk;
550	++started;	674	++started;
551	}	675	}
552	else	676	else
553	free (wrk);	677	free (wrk);
554		678
555	sigprocmask (SIG_SETMASK, &oldsigset, 0);
556	UNLOCK (wrklock);	679	X_UNLOCK (wrklock);
557	}	680	}
558		681
559	static void maybe_start_thread ()	682	static void maybe_start_thread ()
560	{	683	{
561	#if 0	684	if (get_nthreads () >= wanted)
562	static struct timeval last;
563	struct timeval diff, now;
564	#endif
565
566	if (started >= wanted)
567	return;	685	return;
568		686
569	if (nready <= nreqs - get_nready () - get_npending ())	687	/* todo: maybe use idle here, but might be less exact */
		688	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
570	return;	689	return;
571		690
572	#if 0
573	gettimeofday (&now, 0);
574
575	diff.tv_sec = now.tv_sec - last.tv_sec;
576	diff.tv_usec = now.tv_usec - last.tv_usec;
577
578	if (diff.tv_usec < 0)
579	{
580	--diff.tv_sec;
581	diff.tv_usec += 1000000;
582	}
583
584	if (!diff.tv_sec && diff.tv_usec < 10000)
585	return;
586
587	last = now;
588	#endif
589
590	start_thread ();	691	start_thread ();
591	}	692	}
592		693
593	static void req_send (aio_req req)	694	static void req_send (aio_req req)
594	{	695	{
		696	block_sig ();
		697
595	++nreqs;	698	++nreqs;
596		699
597	LOCK (reqlock);	700	X_LOCK (reqlock);
598	++nready;	701	++nready;
599	reqq_push (&req_queue, req);	702	reqq_push (&req_queue, req);
600	pthread_cond_signal (&reqwait);	703	X_COND_SIGNAL (reqwait);
601	UNLOCK (reqlock);	704	X_UNLOCK (reqlock);
		705
		706	unblock_sig ();
602		707
603	maybe_start_thread ();	708	maybe_start_thread ();
604	}	709	}
605		710
606	static void end_thread (void)	711	static void end_thread (void)
…		…
610	Newz (0, req, 1, aio_cb);	715	Newz (0, req, 1, aio_cb);
611		716
612	req->type = REQ_QUIT;	717	req->type = REQ_QUIT;
613	req->pri = PRI_MAX + PRI_BIAS;	718	req->pri = PRI_MAX + PRI_BIAS;
614		719
615	req_send (req);	720	X_LOCK (reqlock);
		721	reqq_push (&req_queue, req);
		722	X_COND_SIGNAL (reqwait);
		723	X_UNLOCK (reqlock);
616		724
617	LOCK (wrklock);	725	X_LOCK (wrklock);
618	--started;	726	--started;
619	UNLOCK (wrklock);	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);
620	}	735	}
621		736
622	static void min_parallel (int nthreads)	737	static void min_parallel (int nthreads)
623	{	738	{
624	if (wanted < nthreads)	739	if (wanted < nthreads)
…		…
639	fd_set rfd;	754	fd_set rfd;
640		755
641	while (nreqs)	756	while (nreqs)
642	{	757	{
643	int size;	758	int size;
644	if (WORDREAD_UNSAFE) LOCK (reslock);	759	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
645	size = res_queue.size;	760	size = res_queue.size;
646	if (WORDREAD_UNSAFE) UNLOCK (reslock);	761	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
647		762
648	if (size)	763	if (size)
649	return;	764	return;
650		765
651	maybe_start_thread ();	766	maybe_start_thread ();
652		767
653	FD_ZERO(&rfd);	768	FD_ZERO (&rfd);
654	FD_SET(respipe [0], &rfd);	769	FD_SET (respipe [0], &rfd);
655		770
656	select (respipe [0] + 1, &rfd, 0, 0, 0);	771	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
657	}	772	}
658	}	773	}
659		774
660	static int poll_cb (int max)	775	static int poll_cb ()
661	{	776	{
662	dSP;	777	dSP;
663	int count = 0;	778	int count = 0;
		779	int maxreqs = max_poll_reqs;
664	int do_croak = 0;	780	int do_croak = 0;
		781	struct timeval tv_start, tv_now;
665	aio_req req;	782	aio_req req;
		783
		784	if (max_poll_time)
		785	gettimeofday (&tv_start, 0);
		786
		787	block_sig ();
666		788
667	for (;;)	789	for (;;)
668	{	790	{
669	while (max <= 0 || count < max)	791	for (;;)
670	{	792	{
671	maybe_start_thread ();	793	maybe_start_thread ();
672		794
673	LOCK (reslock);	795	X_LOCK (reslock);
674	req = reqq_shift (&res_queue);	796	req = reqq_shift (&res_queue);
675		797
676	if (req)	798	if (req)
677	{	799	{
678	--npending;	800	--npending;
679		801
680	if (!res_queue.size)	802	if (!res_queue.size)
681	{	803	{
682	/* read any signals sent by the worker threads */	804	/* read any signals sent by the worker threads */
683	char buf [32];	805	char buf [4];
684	while (read (respipe [0], buf, 32) == 32)	806	while (respipe_read (respipe [0], buf, 4) == 4)
685	;	807	;
686	}	808	}
687	}	809	}
688		810
689	UNLOCK (reslock);	811	X_UNLOCK (reslock);
690		812
691	if (!req)	813	if (!req)
692	break;	814	break;
693		815
694	--nreqs;	816	--nreqs;
695		817
696	if (req->type == REQ_GROUP && req->length)	818	if (req->type == REQ_GROUP && req->size)
697	{	819	{
698	req->fd = 1; /* mark request as delayed */	820	req->int1 = 1; /* mark request as delayed */
699	continue;	821	continue;
700	}	822	}
701	else	823	else
702	{	824	{
703	if (req->type == REQ_READ)	825	if (!req_invoke (req))
704	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707	SvREADONLY_off (req->data);
708
709	if (req->statdata)
710	{	826	{
711	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	827	req_destroy (req);
712	PL_laststatval = req->result;	828	unblock_sig ();
713	PL_statcache = *(req->statdata);	829	croak (0);
714	}	830	}
715
716	req_invoke (req);
717		831
718	count++;	832	count++;
719	}	833	}
720		834
721	req_free (req);	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	}
722	}	847	}
723		848
724	if (nreqs <= max_outstanding)	849	if (nreqs <= max_outstanding)
725	break;	850	break;
726		851
727	poll_wait ();	852	poll_wait ();
728		853
729	max = 0;	854	++maxreqs;
730	}	855	}
731		856
		857	unblock_sig ();
732	return count;	858	return count;
733	}
734
735	static void create_pipe ()
736	{
737	if (pipe (respipe))
738	croak ("unable to initialize result pipe");
739
740	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741	croak ("cannot set result pipe to nonblocking mode");
742
743	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744	croak ("cannot set result pipe to nonblocking mode");
745	}	859	}
746		860
747	/*****************************************************************************/	861	/*****************************************************************************/
748	/* work around various missing functions */	862	/* work around various missing functions */
749		863
…		…
754	/*	868	/*
755	* make our pread/pwrite safe against themselves, but not against	869	* make our pread/pwrite safe against themselves, but not against
756	* 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,
757	* but that's your problem, not mine.	871	* but that's your problem, not mine.
758	*/	872	*/
759	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	873	static mutex_t preadwritelock = X_MUTEX_INIT;
760		874
761	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)
762	{	876	{
763	ssize_t res;	877	ssize_t res;
764	off_t ooffset;	878	off_t ooffset;
765		879
766	LOCK (preadwritelock);	880	X_LOCK (preadwritelock);
767	ooffset = lseek (fd, 0, SEEK_CUR);	881	ooffset = lseek (fd, 0, SEEK_CUR);
768	lseek (fd, offset, SEEK_SET);	882	lseek (fd, offset, SEEK_SET);
769	res = read (fd, buf, count);	883	res = read (fd, buf, count);
770	lseek (fd, ooffset, SEEK_SET);	884	lseek (fd, ooffset, SEEK_SET);
771	UNLOCK (preadwritelock);	885	X_UNLOCK (preadwritelock);
772		886
773	return res;	887	return res;
774	}	888	}
775		889
776	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)
777	{	891	{
778	ssize_t res;	892	ssize_t res;
779	off_t ooffset;	893	off_t ooffset;
780		894
781	LOCK (preadwritelock);	895	X_LOCK (preadwritelock);
782	ooffset = lseek (fd, 0, SEEK_CUR);	896	ooffset = lseek (fd, 0, SEEK_CUR);
783	lseek (fd, offset, SEEK_SET);	897	lseek (fd, offset, SEEK_SET);
784	res = write (fd, buf, count);	898	res = write (fd, buf, count);
785	lseek (fd, offset, SEEK_SET);	899	lseek (fd, offset, SEEK_SET);
786	UNLOCK (preadwritelock);	900	X_UNLOCK (preadwritelock);
787		901
788	return res;	902	return res;
789	}	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
790	#endif	932	#endif
791		933
792	#if !HAVE_FDATASYNC	934	#if !HAVE_FDATASYNC
793	# define fdatasync fsync	935	# define fdatasync fsync
794	#endif	936	#endif
…		…
796	#if !HAVE_READAHEAD	938	#if !HAVE_READAHEAD
797	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	939	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798		940
799	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)
800	{	942	{
		943	size_t todo = count;
801	dBUF;	944	dBUF;
802		945
803	while (count > 0)	946	while (todo > 0)
804	{	947	{
805	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	948	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
806		949
807	pread (fd, aio_buf, len, offset);	950	pread (fd, aio_buf, len, offset);
808	offset += len;	951	offset += len;
809	count -= len;	952	todo -= len;
810	}	953	}
811		954
812	errno = 0;	955	errno = 0;
		956	return count;
813	}	957	}
814		958
815	#endif	959	#endif
816		960
817	#if !HAVE_READDIR_R	961	#if !HAVE_READDIR_R
818	# define readdir_r aio_readdir_r	962	# define readdir_r aio_readdir_r
819		963
820	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	964	static mutex_t readdirlock = X_MUTEX_INIT;
821		965
822	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)
823	{	967	{
824	struct dirent *e;	968	X_DIRENT *e;
825	int errorno;	969	int errorno;
826		970
827	LOCK (readdirlock);	971	X_LOCK (readdirlock);
828		972
829	e = readdir (dirp);	973	e = readdir (dirp);
830	errorno = errno;	974	errorno = errno;
831		975
832	if (e)	976	if (e)
…		…
835	strcpy (ent->d_name, e->d_name);	979	strcpy (ent->d_name, e->d_name);
836	}	980	}
837	else	981	else
838	*res = 0;	982	*res = 0;
839		983
840	UNLOCK (readdirlock);	984	X_UNLOCK (readdirlock);
841		985
842	errno = errorno;	986	errno = errorno;
843	return e ? 0 : -1;	987	return e ? 0 : -1;
844	}	988	}
845	#endif	989	#endif
…		…
941	static void scandir_ (aio_req req, worker *self)	1085	static void scandir_ (aio_req req, worker *self)
942	{	1086	{
943	DIR *dirp;	1087	DIR *dirp;
944	union	1088	union
945	{	1089	{
946	struct dirent d;	1090	X_DIRENT d;
947	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1091	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
948	} *u;	1092	} *u;
949	struct dirent *entp;	1093	X_DIRENT *entp;
950	char *name, *names;	1094	char *name, *names;
951	int memlen = 4096;	1095	int memlen = 4096;
952	int memofs = 0;	1096	int memofs = 0;
953	int res = 0;	1097	int res = 0;
954	int errorno;
955		1098
956	LOCK (wrklock);	1099	X_LOCK (wrklock);
957	self->dirp = dirp = opendir (req->dataptr);	1100	self->dirp = dirp = opendir (req->ptr1);
958	self->dbuf = u = malloc (sizeof (*u));	1101	self->dbuf = u = malloc (sizeof (*u));
		1102	req->flags |= FLAG_PTR2_FREE;
959	req->data2ptr = names = malloc (memlen);	1103	req->ptr2 = names = malloc (memlen);
960	UNLOCK (wrklock);	1104	X_UNLOCK (wrklock);
961		1105
962	if (dirp && u && names)	1106	if (dirp && u && names)
963	for (;;)	1107	for (;;)
964	{	1108	{
965	errno = 0;	1109	errno = 0;
…		…
977	res++;	1121	res++;
978		1122
979	while (memofs + len > memlen)	1123	while (memofs + len > memlen)
980	{	1124	{
981	memlen *= 2;	1125	memlen *= 2;
982	LOCK (wrklock);	1126	X_LOCK (wrklock);
983	req->data2ptr = names = realloc (names, memlen);	1127	req->ptr2 = names = realloc (names, memlen);
984	UNLOCK (wrklock);	1128	X_UNLOCK (wrklock);
985		1129
986	if (!names)	1130	if (!names)
987	break;	1131	break;
988	}	1132	}
989		1133
…		…
998	req->result = res;	1142	req->result = res;
999	}	1143	}
1000		1144
1001	/*****************************************************************************/	1145	/*****************************************************************************/
1002		1146
1003	static void *aio_proc (void *thr_arg)	1147	X_THREAD_PROC (aio_proc)
1004	{	1148	{
		1149	{//D
1005	aio_req req;	1150	aio_req req;
		1151	struct timespec ts;
1006	worker *self = (worker *)thr_arg;	1152	worker *self = (worker *)thr_arg;
		1153
		1154	/* try to distribute timeouts somewhat randomly */
		1155	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1007		1156
1008	for (;;)	1157	for (;;)
1009	{	1158	{
		1159	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1160
1010	LOCK (reqlock);	1161	X_LOCK (reqlock);
1011		1162
1012	for (;;)	1163	for (;;)
1013	{	1164	{
1014	self->req = req = reqq_shift (&req_queue);	1165	self->req = req = reqq_shift (&req_queue);
1015		1166
1016	if (req)	1167	if (req)
1017	break;	1168	break;
1018		1169
1019	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;
1020	}	1191	}
1021		1192
1022	--nready;	1193	--nready;
1023		1194
1024	UNLOCK (reqlock);	1195	X_UNLOCK (reqlock);
1025		1196
1026	errno = 0; /* strictly unnecessary */	1197	errno = 0; /* strictly unnecessary */
1027		1198
1028	if (!(req->flags & FLAG_CANCELLED))	1199	if (!(req->flags & FLAG_CANCELLED))
1029	switch (req->type)	1200	switch (req->type)
1030	{	1201	{
1031	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1202	case REQ_READ: req->result = req->offs >= 0
1032	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;
1033		1208
1034	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;
1035	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;
1036		1211
1037	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;
1038	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;
1039	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;
1040		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
1041	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;
1042	case REQ_CLOSE: req->result = close (req->fd); break;	1224	case REQ_CLOSE: req->result = close (req->int1); break;
1043	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1225	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1044	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;
1045	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1228	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1046	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1229	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1047	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;
1048		1233
1049	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1234	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1050	case REQ_FSYNC: req->result = fsync (req->fd); break;	1235	case REQ_FSYNC: req->result = fsync (req->int1); break;
1051	case REQ_READDIR: scandir_ (req, self); break;	1236	case REQ_READDIR: scandir_ (req, self); break;
1052		1237
1053	case REQ_BUSY:	1238	case REQ_BUSY:
		1239	#ifdef _WIN32
		1240	Sleep (req->nv1 * 1000.);
		1241	#else
1054	{	1242	{
1055	struct timeval tv;	1243	struct timeval tv;
1056		1244
1057	tv.tv_sec = req->fd;	1245	tv.tv_sec = req->nv1;
1058	tv.tv_usec = req->fd2;	1246	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1059		1247
1060	req->result = select (0, 0, 0, 0, &tv);	1248	req->result = select (0, 0, 0, 0, &tv);
		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);
1061	}	1275	}
1062		1276
1063	case REQ_GROUP:	1277	case REQ_GROUP:
1064	case REQ_NOP:	1278	case REQ_NOP:
1065	break;	1279	break;
1066		1280
1067	case REQ_QUIT:	1281	case REQ_QUIT:
1068	LOCK (wrklock);	1282	goto quit;
1069	worker_free (self);
1070	--started;
1071	UNLOCK (wrklock);
1072	return 0;
1073		1283
1074	default:	1284	default:
1075	req->result = ENOSYS;	1285	req->result = -1;
1076	break;	1286	break;
1077	}	1287	}
1078		1288
1079	req->errorno = errno;	1289	req->errorno = errno;
1080		1290
1081	LOCK (reslock);	1291	X_LOCK (reslock);
1082		1292
1083	++npending;	1293	++npending;
1084		1294
1085	if (!reqq_push (&res_queue, req))	1295	if (!reqq_push (&res_queue, req))
		1296	{
1086	/* write a dummy byte to the pipe so fh becomes ready */	1297	/* write a dummy byte to the pipe so fh becomes ready */
1087	write (respipe [1], &respipe, 1);	1298	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1299
		1300	/* optionally signal the main thread asynchronously */
		1301	if (main_sig)
		1302	pthread_kill (main_tid, main_sig);
		1303	}
1088		1304
1089	self->req = 0;	1305	self->req = 0;
1090	worker_clear (self);	1306	worker_clear (self);
1091		1307
1092	UNLOCK (reslock);	1308	X_UNLOCK (reslock);
1093	}	1309	}
		1310
		1311	quit:
		1312	X_LOCK (wrklock);
		1313	worker_free (self);
		1314	X_UNLOCK (wrklock);
		1315
		1316	return 0;
		1317	}//D
1094	}	1318	}
1095		1319
1096	/*****************************************************************************/	1320	/*****************************************************************************/
1097		1321
1098	static void atfork_prepare (void)	1322	static void atfork_prepare (void)
1099	{	1323	{
1100	LOCK (wrklock);	1324	X_LOCK (wrklock);
1101	LOCK (reqlock);	1325	X_LOCK (reqlock);
1102	LOCK (reslock);	1326	X_LOCK (reslock);
1103	#if !HAVE_PREADWRITE	1327	#if !HAVE_PREADWRITE
1104	LOCK (preadwritelock);	1328	X_LOCK (preadwritelock);
1105	#endif	1329	#endif
1106	#if !HAVE_READDIR_R	1330	#if !HAVE_READDIR_R
1107	LOCK (readdirlock);	1331	X_LOCK (readdirlock);
1108	#endif	1332	#endif
1109	}	1333	}
1110		1334
1111	static void atfork_parent (void)	1335	static void atfork_parent (void)
1112	{	1336	{
1113	#if !HAVE_READDIR_R	1337	#if !HAVE_READDIR_R
1114	UNLOCK (readdirlock);	1338	X_UNLOCK (readdirlock);
1115	#endif	1339	#endif
1116	#if !HAVE_PREADWRITE	1340	#if !HAVE_PREADWRITE
1117	UNLOCK (preadwritelock);	1341	X_UNLOCK (preadwritelock);
1118	#endif	1342	#endif
1119	UNLOCK (reslock);	1343	X_UNLOCK (reslock);
1120	UNLOCK (reqlock);	1344	X_UNLOCK (reqlock);
1121	UNLOCK (wrklock);	1345	X_UNLOCK (wrklock);
1122	}	1346	}
1123		1347
1124	static void atfork_child (void)	1348	static void atfork_child (void)
1125	{	1349	{
1126	aio_req prv;	1350	aio_req prv;
1127		1351
1128	while (prv = reqq_shift (&req_queue))	1352	while (prv = reqq_shift (&req_queue))
1129	req_free (prv);	1353	req_destroy (prv);
1130		1354
1131	while (prv = reqq_shift (&res_queue))	1355	while (prv = reqq_shift (&res_queue))
1132	req_free (prv);	1356	req_destroy (prv);
1133		1357
1134	while (wrk_first.next != &wrk_first)	1358	while (wrk_first.next != &wrk_first)
1135	{	1359	{
1136	worker *wrk = wrk_first.next;	1360	worker *wrk = wrk_first.next;
1137		1361
1138	if (wrk->req)	1362	if (wrk->req)
1139	req_free (wrk->req);	1363	req_destroy (wrk->req);
1140		1364
1141	worker_clear (wrk);	1365	worker_clear (wrk);
1142	worker_free (wrk);	1366	worker_free (wrk);
1143	}	1367	}
1144		1368
1145	started = 0;	1369	started = 0;
		1370	idle = 0;
1146	nreqs = 0;	1371	nreqs = 0;
		1372	nready = 0;
		1373	npending = 0;
1147		1374
1148	close (respipe [0]);	1375	respipe_close (respipe [0]);
1149	close (respipe [1]);	1376	respipe_close (respipe [1]);
		1377
1150	create_pipe ();	1378	create_pipe (respipe);
1151		1379
1152	atfork_parent ();	1380	atfork_parent ();
1153	}	1381	}
1154		1382
1155	#define dREQ \	1383	#define dREQ \
…		…
1178	PROTOTYPES: ENABLE	1406	PROTOTYPES: ENABLE
1179		1407
1180	BOOT:	1408	BOOT:
1181	{	1409	{
1182	HV *stash = gv_stashpv ("IO::AIO", 1);	1410	HV *stash = gv_stashpv ("IO::AIO", 1);
		1411
1183	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1412	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1184	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1413	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1185	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);
1186		1424
1187	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
1188	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1433	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1189
1190	start_thread ();
1191	}	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;
1192		1447
1193	void	1448	void
1194	min_parallel (int nthreads)	1449	min_parallel (int nthreads)
1195	PROTOTYPE: $	1450	PROTOTYPE: $
1196		1451
1197	void	1452	void
1198	max_parallel (int nthreads)	1453	max_parallel (int nthreads)
1199	PROTOTYPE: $	1454	PROTOTYPE: $
		1455
		1456	void
		1457	max_idle (int nthreads)
		1458	PROTOTYPE: $
		1459	CODE:
		1460	set_max_idle (nthreads);
1200		1461
1201	int	1462	int
1202	max_outstanding (int maxreqs)	1463	max_outstanding (int maxreqs)
1203	PROTOTYPE: $	1464	PROTOTYPE: $
1204	CODE:	1465	CODE:
…		…
1206	max_outstanding = maxreqs;	1467	max_outstanding = maxreqs;
1207	OUTPUT:	1468	OUTPUT:
1208	RETVAL	1469	RETVAL
1209		1470
1210	void	1471	void
1211	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1472	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1212	SV * pathname
1213	int flags
1214	int mode
1215	SV * callback
1216	PROTOTYPE: $$$;$	1473	PROTOTYPE: $$$;$
1217	PPCODE:	1474	PPCODE:
1218	{	1475	{
1219	dREQ;	1476	dREQ;
1220		1477
1221	req->type = REQ_OPEN;	1478	req->type = REQ_OPEN;
1222	req->data = newSVsv (pathname);	1479	req->sv1 = newSVsv (pathname);
1223	req->dataptr = SvPVbyte_nolen (req->data);	1480	req->ptr1 = SvPVbyte_nolen (req->sv1);
1224	req->fd = flags;	1481	req->int1 = flags;
1225	req->mode = mode;	1482	req->mode = mode;
1226		1483
1227	REQ_SEND;	1484	REQ_SEND;
1228	}	1485	}
1229		1486
1230	void	1487	void
1231	aio_close (fh,callback=&PL_sv_undef)	1488	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1232	SV * fh
1233	SV * callback
1234	PROTOTYPE: $;$	1489	PROTOTYPE: $;$
1235	ALIAS:	1490	ALIAS:
1236	aio_close = REQ_CLOSE	1491	aio_close = REQ_CLOSE
1237	aio_fsync = REQ_FSYNC	1492	aio_fsync = REQ_FSYNC
1238	aio_fdatasync = REQ_FDATASYNC	1493	aio_fdatasync = REQ_FDATASYNC
1239	PPCODE:	1494	PPCODE:
1240	{	1495	{
1241	dREQ;	1496	dREQ;
1242		1497
1243	req->type = ix;	1498	req->type = ix;
1244	req->fh = newSVsv (fh);	1499	req->sv1 = newSVsv (fh);
1245	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1500	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1246		1501
1247	REQ_SEND (req);	1502	REQ_SEND (req);
1248	}	1503	}
1249		1504
1250	void	1505	void
1251	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)
1252	SV * fh
1253	UV offset
1254	UV length
1255	SV * data
1256	UV dataoffset
1257	SV * callback
1258	ALIAS:	1507	ALIAS:
1259	aio_read = REQ_READ	1508	aio_read = REQ_READ
1260	aio_write = REQ_WRITE	1509	aio_write = REQ_WRITE
1261	PROTOTYPE: $$$$$;$	1510	PROTOTYPE: $$$$$;$
1262	PPCODE:	1511	PPCODE:
1263	{	1512	{
1264	aio_req req;
1265	STRLEN svlen;	1513	STRLEN svlen;
1266	char *svptr = SvPVbyte (data, svlen);	1514	char *svptr = SvPVbyte (data, svlen);
		1515	UV len = SvUV (length);
1267		1516
1268	SvUPGRADE (data, SVt_PV);	1517	SvUPGRADE (data, SVt_PV);
1269	SvPOK_on (data);	1518	SvPOK_on (data);
1270		1519
1271	if (dataoffset < 0)	1520	if (dataoffset < 0)
1272	dataoffset += svlen;	1521	dataoffset += svlen;
1273		1522
1274	if (dataoffset < 0 || dataoffset > svlen)	1523	if (dataoffset < 0 || dataoffset > svlen)
1275	croak ("data offset outside of string");	1524	croak ("dataoffset outside of data scalar");
1276		1525
1277	if (ix == REQ_WRITE)	1526	if (ix == REQ_WRITE)
1278	{	1527	{
1279	/* write: check length and adjust. */	1528	/* write: check length and adjust. */
1280	if (length < 0 || length + dataoffset > svlen)	1529	if (!SvOK (length) || len + dataoffset > svlen)
1281	length = svlen - dataoffset;	1530	len = svlen - dataoffset;
1282	}	1531	}
1283	else	1532	else
1284	{	1533	{
1285	/* read: grow scalar as necessary */	1534	/* read: grow scalar as necessary */
1286	svptr = SvGROW (data, length + dataoffset);	1535	svptr = SvGROW (data, len + dataoffset + 1);
1287	}	1536	}
1288		1537
1289	if (length < 0)	1538	if (len < 0)
1290	croak ("length must not be negative");	1539	croak ("length must not be negative");
1291		1540
1292	{	1541	{
1293	dREQ;	1542	dREQ;
1294		1543
1295	req->type = ix;	1544	req->type = ix;
1296	req->fh = newSVsv (fh);	1545	req->sv1 = newSVsv (fh);
1297	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1546	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1298	: IoOFP (sv_2io (fh)));	1547	: IoOFP (sv_2io (fh)));
		1548	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1299	req->offset = offset;	1549	req->size = len;
1300	req->length = length;
1301	req->data = SvREFCNT_inc (data);	1550	req->sv2 = SvREFCNT_inc (data);
1302	req->dataptr = (char *)svptr + dataoffset;	1551	req->ptr1 = (char *)svptr + dataoffset;
		1552	req->stroffset = dataoffset;
1303		1553
1304	if (!SvREADONLY (data))	1554	if (!SvREADONLY (data))
1305	{	1555	{
1306	SvREADONLY_on (data);	1556	SvREADONLY_on (data);
1307	req->data2ptr = (void *)data;	1557	req->flags |= FLAG_SV2_RO_OFF;
1308	}	1558	}
1309		1559
1310	REQ_SEND;	1560	REQ_SEND;
1311	}	1561	}
1312	}	1562	}
1313		1563
1314	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
1315	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)
1316	SV * out_fh
1317	SV * in_fh
1318	UV in_offset
1319	UV length
1320	SV * callback
1321	PROTOTYPE: $$$$;$	1586	PROTOTYPE: $$$$;$
1322	PPCODE:	1587	PPCODE:
1323	{	1588	{
1324	dREQ;	1589	dREQ;
1325		1590
1326	req->type = REQ_SENDFILE;	1591	req->type = REQ_SENDFILE;
1327	req->fh = newSVsv (out_fh);	1592	req->sv1 = newSVsv (out_fh);
1328	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1593	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1329	req->fh2 = newSVsv (in_fh);	1594	req->sv2 = newSVsv (in_fh);
1330	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1595	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1331	req->offset = in_offset;	1596	req->offs = SvVAL64 (in_offset);
1332	req->length = length;	1597	req->size = length;
1333		1598
1334	REQ_SEND;	1599	REQ_SEND;
1335	}	1600	}
1336		1601
1337	void	1602	void
1338	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1603	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1339	SV * fh
1340	UV offset
1341	IV length
1342	SV * callback
1343	PROTOTYPE: $$$;$	1604	PROTOTYPE: $$$;$
1344	PPCODE:	1605	PPCODE:
1345	{	1606	{
1346	dREQ;	1607	dREQ;
1347		1608
1348	req->type = REQ_READAHEAD;	1609	req->type = REQ_READAHEAD;
1349	req->fh = newSVsv (fh);	1610	req->sv1 = newSVsv (fh);
1350	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1611	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1351	req->offset = offset;	1612	req->offs = SvVAL64 (offset);
1352	req->length = length;	1613	req->size = length;
1353		1614
1354	REQ_SEND;	1615	REQ_SEND;
1355	}	1616	}
1356		1617
1357	void	1618	void
1358	aio_stat (fh_or_path,callback=&PL_sv_undef)	1619	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1359	SV * fh_or_path
1360	SV * callback
1361	ALIAS:	1620	ALIAS:
1362	aio_stat = REQ_STAT	1621	aio_stat = REQ_STAT
1363	aio_lstat = REQ_LSTAT	1622	aio_lstat = REQ_LSTAT
1364	PPCODE:	1623	PPCODE:
1365	{	1624	{
1366	dREQ;	1625	dREQ;
1367		1626
1368	New (0, req->statdata, 1, Stat_t);	1627	req->ptr2 = malloc (sizeof (Stat_t));
1369	if (!req->statdata)	1628	if (!req->ptr2)
1370	{	1629	{
1371	req_free (req);	1630	req_destroy (req);
1372	croak ("out of memory during aio_req->statdata allocation");	1631	croak ("out of memory during aio_stat statdata allocation");
1373	}	1632	}
		1633
		1634	req->flags |= FLAG_PTR2_FREE;
		1635	req->sv1 = newSVsv (fh_or_path);
1374		1636
1375	if (SvPOK (fh_or_path))	1637	if (SvPOK (fh_or_path))
1376	{	1638	{
1377	req->type = ix;	1639	req->type = ix;
1378	req->data = newSVsv (fh_or_path);
1379	req->dataptr = SvPVbyte_nolen (req->data);	1640	req->ptr1 = SvPVbyte_nolen (req->sv1);
1380	}	1641	}
1381	else	1642	else
1382	{	1643	{
1383	req->type = REQ_FSTAT;	1644	req->type = REQ_FSTAT;
1384	req->fh = newSVsv (fh_or_path);
1385	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1645	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1386	}	1646	}
1387		1647
1388	REQ_SEND;	1648	REQ_SEND;
1389	}	1649	}
1390		1650
1391	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
1392	aio_unlink (pathname,callback=&PL_sv_undef)	1746	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1393	SV * pathname
1394	SV * callback
1395	ALIAS:	1747	ALIAS:
1396	aio_unlink = REQ_UNLINK	1748	aio_unlink = REQ_UNLINK
1397	aio_rmdir = REQ_RMDIR	1749	aio_rmdir = REQ_RMDIR
1398	aio_readdir = REQ_READDIR	1750	aio_readdir = REQ_READDIR
1399	PPCODE:	1751	PPCODE:
1400	{	1752	{
1401	dREQ;	1753	dREQ;
1402		1754
1403	req->type = ix;	1755	req->type = ix;
1404	req->data = newSVsv (pathname);	1756	req->sv1 = newSVsv (pathname);
1405	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;
1406		1767
		1768	req->type = REQ_MKDIR;
		1769	req->sv1 = newSVsv (pathname);
		1770	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1771	req->mode = mode;
		1772
1407	REQ_SEND;	1773	REQ_SEND;
1408	}	1774	}
1409		1775
1410	void	1776	void
1411	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1412	SV * oldpath
1413	SV * newpath
1414	SV * callback
1415	ALIAS:	1778	ALIAS:
1416	aio_link = REQ_LINK	1779	aio_link = REQ_LINK
1417	aio_symlink = REQ_SYMLINK	1780	aio_symlink = REQ_SYMLINK
1418	aio_rename = REQ_RENAME	1781	aio_rename = REQ_RENAME
1419	PPCODE:	1782	PPCODE:
1420	{	1783	{
1421	dREQ;	1784	dREQ;
1422		1785
1423	req->type = ix;	1786	req->type = ix;
1424	req->fh = newSVsv (oldpath);	1787	req->sv2 = newSVsv (oldpath);
1425	req->data2ptr = SvPVbyte_nolen (req->fh);	1788	req->ptr2 = SvPVbyte_nolen (req->sv2);
1426	req->data = newSVsv (newpath);	1789	req->sv1 = newSVsv (newpath);
1427	req->dataptr = SvPVbyte_nolen (req->data);	1790	req->ptr1 = SvPVbyte_nolen (req->sv1);
1428		1791
1429	REQ_SEND;	1792	REQ_SEND;
1430	}	1793	}
1431		1794
1432	void	1795	void
1433	aio_busy (delay,callback=&PL_sv_undef)	1796	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1434	double delay
1435	SV * callback
1436	PPCODE:	1797	PPCODE:
1437	{	1798	{
1438	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;
1439		1815
1440	req->type = REQ_BUSY;	1816	req->type = REQ_BUSY;
1441	req->fd = delay < 0. ? 0 : delay;	1817	req->nv1 = delay < 0. ? 0. : delay;
1442	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1443		1818
1444	REQ_SEND;	1819	REQ_SEND;
1445	}	1820	}
1446		1821
1447	void	1822	void
1448	aio_group (callback=&PL_sv_undef)	1823	aio_group (SV *callback=&PL_sv_undef)
1449	SV * callback
1450	PROTOTYPE: ;$	1824	PROTOTYPE: ;$
1451	PPCODE:	1825	PPCODE:
1452	{	1826	{
1453	dREQ;	1827	dREQ;
1454		1828
1455	req->type = REQ_GROUP;	1829	req->type = REQ_GROUP;
		1830
1456	req_send (req);	1831	req_send (req);
1457
1458	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1832	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1459	}	1833	}
1460		1834
1461	void	1835	void
1462	aio_nop (callback=&PL_sv_undef)	1836	aio_nop (SV *callback=&PL_sv_undef)
1463	SV * callback
1464	PPCODE:	1837	PPCODE:
1465	{	1838	{
1466	dREQ;	1839	dREQ;
1467		1840
1468	req->type = REQ_NOP;	1841	req->type = REQ_NOP;
…		…
1497	PROTOTYPE:	1870	PROTOTYPE:
1498	CODE:	1871	CODE:
1499	while (nreqs)	1872	while (nreqs)
1500	{	1873	{
1501	poll_wait ();	1874	poll_wait ();
1502	poll_cb (0);	1875	poll_cb ();
1503	}	1876	}
1504		1877
1505	void	1878	int
1506	poll()	1879	poll()
1507	PROTOTYPE:	1880	PROTOTYPE:
1508	CODE:	1881	CODE:
1509	if (nreqs)
1510	{
1511	poll_wait ();	1882	poll_wait ();
1512	poll_cb (0);	1883	RETVAL = poll_cb ();
1513	}	1884	OUTPUT:
		1885	RETVAL
1514		1886
1515	int	1887	int
1516	poll_fileno()	1888	poll_fileno()
1517	PROTOTYPE:	1889	PROTOTYPE:
1518	CODE:	1890	CODE:
…		…
1522		1894
1523	int	1895	int
1524	poll_cb(...)	1896	poll_cb(...)
1525	PROTOTYPE:	1897	PROTOTYPE:
1526	CODE:	1898	CODE:
1527	RETVAL = poll_cb (0);	1899	RETVAL = poll_cb ();
1528	OUTPUT:
1529	RETVAL
1530
1531	int
1532	poll_some(int max = 0)
1533	PROTOTYPE: $
1534	CODE:
1535	RETVAL = poll_cb (max);
1536	OUTPUT:	1900	OUTPUT:
1537	RETVAL	1901	RETVAL
1538		1902
1539	void	1903	void
1540	poll_wait()	1904	poll_wait()
1541	PROTOTYPE:	1905	PROTOTYPE:
1542	CODE:	1906	CODE:
1543	if (nreqs)
1544	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	}
1545		1945
1546	int	1946	int
1547	nreqs()	1947	nreqs()
1548	PROTOTYPE:	1948	PROTOTYPE:
1549	CODE:	1949	CODE:
…		…
1565	CODE:	1965	CODE:
1566	RETVAL = get_npending ();	1966	RETVAL = get_npending ();
1567	OUTPUT:	1967	OUTPUT:
1568	RETVAL	1968	RETVAL
1569		1969
		1970	int
		1971	nthreads()
		1972	PROTOTYPE:
		1973	CODE:
		1974	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1975	RETVAL = started;
		1976	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		1977	OUTPUT:
		1978	RETVAL
		1979
1570	PROTOTYPES: DISABLE	1980	PROTOTYPES: DISABLE
1571		1981
1572	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1982	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1573		1983
1574	void	1984	void
…		…
1589	PPCODE:	1999	PPCODE:
1590	{	2000	{
1591	int i;	2001	int i;
1592	aio_req req;	2002	aio_req req;
1593		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
1594	if (grp->fd == 2)	2007	if (grp->int1 == 2)
1595	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");
1596		2009
1597	for (i = 1; i < items; ++i )	2010	for (i = 1; i < items; ++i )
1598	{	2011	{
1599	if (GIMME_V != G_VOID)	2012	if (GIMME_V != G_VOID)
…		…
1601		2014
1602	req = SvAIO_REQ (ST (i));	2015	req = SvAIO_REQ (ST (i));
1603		2016
1604	if (req)	2017	if (req)
1605	{	2018	{
1606	++grp->length;	2019	++grp->size;
1607	req->grp = grp;	2020	req->grp = grp;
1608		2021
1609	req->grp_prev = 0;	2022	req->grp_prev = 0;
1610	req->grp_next = grp->grp_first;	2023	req->grp_next = grp->grp_first;
1611		2024
…		…
1634	av = newAV ();	2047	av = newAV ();
1635		2048
1636	for (i = 1; i < items; ++i )	2049	for (i = 1; i < items; ++i )
1637	av_push (av, newSVsv (ST (i)));	2050	av_push (av, newSVsv (ST (i)));
1638		2051
1639	SvREFCNT_dec (grp->data);	2052	SvREFCNT_dec (grp->sv1);
1640	grp->data = (SV *)av;	2053	grp->sv1 = (SV *)av;
1641	}	2054	}
1642		2055
1643	void	2056	void
1644	errno (aio_req grp, int errorno = errno)	2057	errno (aio_req grp, int errorno = errno)
1645	CODE:	2058	CODE:
1646	grp->errorno = errorno;	2059	grp->errorno = errorno;
1647		2060
1648	void	2061	void
1649	limit (aio_req grp, int limit)	2062	limit (aio_req grp, int limit)
1650	CODE:	2063	CODE:
1651	grp->fd2 = limit;	2064	grp->int2 = limit;
1652	aio_grp_feed (grp);	2065	aio_grp_feed (grp);
1653		2066
1654	void	2067	void
1655	feed (aio_req grp, SV *callback=&PL_sv_undef)	2068	feed (aio_req grp, SV *callback=&PL_sv_undef)
1656	CODE:	2069	CODE:
1657	{	2070	{
1658	SvREFCNT_dec (grp->fh2);	2071	SvREFCNT_dec (grp->sv2);
1659	grp->fh2 = newSVsv (callback);	2072	grp->sv2 = newSVsv (callback);
1660		2073
1661	if (grp->fd2 <= 0)	2074	if (grp->int2 <= 0)
1662	grp->fd2 = 2;	2075	grp->int2 = 2;
1663		2076
1664	aio_grp_feed (grp);	2077	aio_grp_feed (grp);
1665	}	2078	}
1666		2079

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