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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.73 by root, Tue Oct 24 21:26:30 2006 UTC vs.
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux
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 [2], respipe_osf [2];
		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);
244	static void req_free (aio_req req);	374	static void req_destroy (aio_req req);
245	static void req_cancel (aio_req req);	375	static void req_cancel (aio_req req);
246		376
247	/* must be called at most once */	377	/* must be called at most once */
248	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
249	{	379	{
…		…
268	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
269	}	399	}
270		400
271	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
272	{	402	{
		403	block_sig ();
		404
273	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
274	{	406	{
275	int old_len = grp->length;	407	int old_len = grp->size;
276		408
277	if (grp->fh2 && SvOK (grp->fh2))	409	if (grp->sv2 && SvOK (grp->sv2))
278	{	410	{
279	dSP;	411	dSP;
280		412
281	ENTER;	413	ENTER;
282	SAVETMPS;	414	SAVETMPS;
283	PUSHMARK (SP);	415	PUSHMARK (SP);
284	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	416	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
285	PUTBACK;	417	PUTBACK;
286	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	418	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
287	SPAGAIN;	419	SPAGAIN;
288	FREETMPS;	420	FREETMPS;
289	LEAVE;	421	LEAVE;
290	}	422	}
291		423
292	/* stop if no progress has been made */	424	/* stop if no progress has been made */
293	if (old_len == grp->length)	425	if (old_len == grp->size)
294	{	426	{
295	SvREFCNT_dec (grp->fh2);	427	SvREFCNT_dec (grp->sv2);
296	grp->fh2 = 0;	428	grp->sv2 = 0;
297	break;	429	break;
298	}	430	}
299	}	431	}
		432
		433	unblock_sig ();
300	}	434	}
301		435
302	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
303	{	437	{
304	--grp->length;	438	--grp->size;
305		439
306	/* call feeder, if applicable */	440	/* call feeder, if applicable */
307	aio_grp_feed (grp);	441	aio_grp_feed (grp);
308		442
309	/* finish, if done */	443	/* finish, if done */
310	if (!grp->length && grp->fd)	444	if (!grp->size && grp->int1)
311	{	445	{
		446	block_sig ();
		447
312	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
313	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
314	}	457	}
315	}	458	}
316		459
317	static void poll_wait ()
318	{
319	fd_set rfd;
320
321	while (nreqs)
322	{
323	int size;
324	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
325	LOCK (reslock);
326	#endif
327	size = res_queue.size;
328	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
329	UNLOCK (reslock);
330	#endif
331
332	if (size)
333	return;
334
335	FD_ZERO(&rfd);
336	FD_SET(respipe [0], &rfd);
337
338	select (respipe [0] + 1, &rfd, 0, 0, 0);
339	}
340	}
341
342	static void req_invoke (aio_req req)	460	static int req_invoke (aio_req req)
343	{	461	{
344	dSP;	462	dSP;
		463
		464	if (req->flags & FLAG_SV2_RO_OFF)
		465	SvREADONLY_off (req->sv2);
345		466
346	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
347	{	468	{
348	errno = req->errorno;
349
350	ENTER;	469	ENTER;
351	SAVETMPS;	470	SAVETMPS;
352	PUSHMARK (SP);	471	PUSHMARK (SP);
353	EXTEND (SP, 1);	472	EXTEND (SP, 1);
354		473
…		…
359	SV *rv = &PL_sv_undef;	478	SV *rv = &PL_sv_undef;
360		479
361	if (req->result >= 0)	480	if (req->result >= 0)
362	{	481	{
363	int i;	482	int i;
364	char *buf = req->data2ptr;	483	char *buf = req->ptr2;
365	AV *av = newAV ();	484	AV *av = newAV ();
366		485
367	av_extend (av, req->result - 1);	486	av_extend (av, req->result - 1);
368		487
369	for (i = 0; i < req->result; ++i)	488	for (i = 0; i < req->result; ++i)
…		…
389	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
390	PUTBACK;	509	PUTBACK;
391	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
392	SPAGAIN;	511	SPAGAIN;
393		512
394	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
395
396	PUSHMARK (SP);	514	PUSHMARK (SP);
397	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
398	}	516	}
399	break;	517	break;
400		518
401	case REQ_GROUP:	519	case REQ_GROUP:
402	req->fd = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
403		521
404	if (req->data)	522	if (req->sv1)
405	{	523	{
406	int i;	524	int i;
407	AV *av = (AV *)req->data;	525	AV *av = (AV *)req->sv1;
408		526
409	EXTEND (SP, AvFILL (av) + 1);	527	EXTEND (SP, AvFILL (av) + 1);
410	for (i = 0; i <= AvFILL (av); ++i)	528	for (i = 0; i <= AvFILL (av); ++i)
411	PUSHs (*av_fetch (av, i, 0));	529	PUSHs (*av_fetch (av, i, 0));
412	}	530	}
…		…
414		532
415	case REQ_NOP:	533	case REQ_NOP:
416	case REQ_BUSY:	534	case REQ_BUSY:
417	break;	535	break;
418		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
419	default:	561	default:
420	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
421	break;	563	break;
422	}	564	}
423		565
		566	errno = req->errorno;
424		567
425	PUTBACK;	568	PUTBACK;
426	call_sv (req->callback, G_VOID | G_EVAL);	569	call_sv (req->callback, G_VOID | G_EVAL);
427	SPAGAIN;	570	SPAGAIN;
428		571
…		…
442	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
443		586
444	aio_grp_dec (grp);	587	aio_grp_dec (grp);
445	}	588	}
446		589
447	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
448	{
449	req_free (req);
450	croak (0);
451	}
452	}	591	}
453		592
454	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
455	{	594	{
456	if (req->self)	595	if (req->self)
457	{	596	{
458	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
459	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
460	}	599	}
461		600
462	SvREFCNT_dec (req->data);
463	SvREFCNT_dec (req->fh);	601	SvREFCNT_dec (req->sv1);
464	SvREFCNT_dec (req->fh2);	602	SvREFCNT_dec (req->sv2);
465	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
466	Safefree (req->statdata);
467		604
468	if (req->type == REQ_READDIR)	605	if (req->flags & FLAG_PTR2_FREE)
469	free (req->data2ptr);	606	free (req->ptr2);
470		607
471	Safefree (req);	608	Safefree (req);
472	}	609	}
473		610
474	static void req_cancel_subs (aio_req grp)	611	static void req_cancel_subs (aio_req grp)
…		…
476	aio_req sub;	613	aio_req sub;
477		614
478	if (grp->type != REQ_GROUP)	615	if (grp->type != REQ_GROUP)
479	return;	616	return;
480		617
481	SvREFCNT_dec (grp->fh2);	618	SvREFCNT_dec (grp->sv2);
482	grp->fh2 = 0;	619	grp->sv2 = 0;
483		620
484	for (sub = grp->grp_first; sub; sub = sub->grp_next)	621	for (sub = grp->grp_first; sub; sub = sub->grp_next)
485	req_cancel (sub);	622	req_cancel (sub);
486	}	623	}
487		624
…		…
490	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
491		628
492	req_cancel_subs (req);	629	req_cancel_subs (req);
493	}	630	}
494		631
495	static int poll_cb ()	632	#ifdef USE_SOCKETS_AS_HANDLES
496	{	633	# define TO_SOCKET(x) (win32_get_osfhandle (x))
497	dSP;	634	#else
498	int count = 0;	635	# define TO_SOCKET(x) (x)
499	int do_croak = 0;	636	#endif
500	aio_req req;
501		637
502	for (;;)	638	static void
503	{	639	create_pipe (int fd[2])
504	LOCK (reslock);	640	{
505	req = reqq_shift (&res_queue);	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");
506		652
507	if (req)	653	respipe_osf [0] = TO_SOCKET (respipe [0]);
508	{	654	respipe_osf [1] = TO_SOCKET (respipe [1]);
509	if (!res_queue.size)
510	{
511	/* read any signals sent by the worker threads */
512	char buf [32];
513	while (read (respipe [0], buf, 32) == 32)
514	;
515	}
516	}
517
518	UNLOCK (reslock);
519
520	if (!req)
521	break;
522
523	--nreqs;
524
525	if (req->type == REQ_QUIT)
526	started--;
527	else if (req->type == REQ_GROUP && req->length)
528	{
529	req->fd = 1; /* mark request as delayed */
530	continue;
531	}
532	else
533	{
534	if (req->type == REQ_READ)
535	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
536
537	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
538	SvREADONLY_off (req->data);
539
540	if (req->statdata)
541	{
542	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
543	PL_laststatval = req->result;
544	PL_statcache = *(req->statdata);
545	}
546
547	req_invoke (req);
548
549	count++;
550	}
551
552	req_free (req);
553	}
554
555	return count;
556	}	655	}
557		656
558	static void *aio_proc(void *arg);	657	X_THREAD_PROC (aio_proc);
559		658
560	static void start_thread (void)	659	static void start_thread (void)
561	{	660	{
562	sigset_t fullsigset, oldsigset;
563	pthread_attr_t attr;
564
565	worker *wrk = calloc (1, sizeof (worker));	661	worker *wrk = calloc (1, sizeof (worker));
566		662
567	if (!wrk)	663	if (!wrk)
568	croak ("unable to allocate worker thread data");	664	croak ("unable to allocate worker thread data");
569		665
570	pthread_attr_init (&attr);
571	pthread_attr_setstacksize (&attr, STACKSIZE);
572	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
573
574	sigfillset (&fullsigset);
575
576	LOCK (wrklock);	666	X_LOCK (wrklock);
577	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
578		667
579	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	668	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
580	{	669	{
581	wrk->prev = &wrk_first;	670	wrk->prev = &wrk_first;
582	wrk->next = wrk_first.next;	671	wrk->next = wrk_first.next;
583	wrk_first.next->prev = wrk;	672	wrk_first.next->prev = wrk;
584	wrk_first.next = wrk;	673	wrk_first.next = wrk;
585	started++;	674	++started;
586	}	675	}
587	else	676	else
588	free (wrk);	677	free (wrk);
589		678
590	sigprocmask (SIG_SETMASK, &oldsigset, 0);
591	UNLOCK (wrklock);	679	X_UNLOCK (wrklock);
		680	}
		681
		682	static void maybe_start_thread ()
		683	{
		684	if (get_nthreads () >= wanted)
		685	return;
		686
		687	/* todo: maybe use idle here, but might be less exact */
		688	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		689	return;
		690
		691	start_thread ();
592	}	692	}
593		693
594	static void req_send (aio_req req)	694	static void req_send (aio_req req)
595	{	695	{
596	while (started < wanted && nreqs >= started)	696	block_sig ();
597	start_thread ();
598		697
599	++nreqs;	698	++nreqs;
600		699
601	LOCK (reqlock);	700	X_LOCK (reqlock);
		701	++nready;
602	reqq_push (&req_queue, req);	702	reqq_push (&req_queue, req);
603	pthread_cond_signal (&reqwait);	703	X_COND_SIGNAL (reqwait);
604	UNLOCK (reqlock);	704	X_UNLOCK (reqlock);
605		705
606	if (nreqs > max_outstanding)	706	unblock_sig ();
607	for (;;)
608	{
609	poll_cb ();
610		707
611	if (nreqs <= max_outstanding)	708	maybe_start_thread ();
612	break;
613
614	poll_wait ();
615	}
616	}	709	}
617		710
618	static void end_thread (void)	711	static void end_thread (void)
619	{	712	{
620	aio_req req;	713	aio_req req;
…		…
622	Newz (0, req, 1, aio_cb);	715	Newz (0, req, 1, aio_cb);
623		716
624	req->type = REQ_QUIT;	717	req->type = REQ_QUIT;
625	req->pri = PRI_MAX + PRI_BIAS;	718	req->pri = PRI_MAX + PRI_BIAS;
626		719
627	req_send (req);	720	X_LOCK (reqlock);
		721	reqq_push (&req_queue, req);
		722	X_COND_SIGNAL (reqwait);
		723	X_UNLOCK (reqlock);
		724
		725	X_LOCK (wrklock);
		726	--started;
		727	X_UNLOCK (wrklock);
		728	}
		729
		730	static void set_max_idle (int nthreads)
		731	{
		732	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		733	max_idle = nthreads <= 0 ? 1 : nthreads;
		734	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
628	}	735	}
629		736
630	static void min_parallel (int nthreads)	737	static void min_parallel (int nthreads)
631	{	738	{
632	if (wanted < nthreads)	739	if (wanted < nthreads)
633	wanted = nthreads;	740	wanted = nthreads;
634	}	741	}
635		742
636	static void max_parallel (int nthreads)	743	static void max_parallel (int nthreads)
637	{	744	{
638	int cur = started;
639
640	if (wanted > nthreads)	745	if (wanted > nthreads)
641	wanted = nthreads;	746	wanted = nthreads;
642		747
643	while (cur > wanted)	748	while (started > wanted)
		749	end_thread ();
		750	}
		751
		752	static void poll_wait ()
		753	{
		754	fd_set rfd;
		755
		756	while (nreqs)
644	{	757	{
		758	int size;
		759	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		760	size = res_queue.size;
		761	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		762
		763	if (size)
		764	return;
		765
645	end_thread ();	766	maybe_start_thread ();
646	cur--;	767
		768	FD_ZERO (&rfd);
		769	FD_SET (respipe [0], &rfd);
		770
		771	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
647	}	772	}
		773	}
648		774
649	while (started > wanted)	775	static int poll_cb ()
		776	{
		777	dSP;
		778	int count = 0;
		779	int maxreqs = max_poll_reqs;
		780	int do_croak = 0;
		781	struct timeval tv_start, tv_now;
		782	aio_req req;
		783
		784	if (max_poll_time)
		785	gettimeofday (&tv_start, 0);
		786
		787	block_sig ();
		788
		789	for (;;)
650	{	790	{
		791	for (;;)
		792	{
		793	maybe_start_thread ();
		794
		795	X_LOCK (reslock);
		796	req = reqq_shift (&res_queue);
		797
		798	if (req)
		799	{
		800	--npending;
		801
		802	if (!res_queue.size)
		803	{
		804	/* read any signals sent by the worker threads */
		805	char buf [4];
		806	while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
		807	;
		808	}
		809	}
		810
		811	X_UNLOCK (reslock);
		812
		813	if (!req)
		814	break;
		815
		816	--nreqs;
		817
		818	if (req->type == REQ_GROUP && req->size)
		819	{
		820	req->int1 = 1; /* mark request as delayed */
		821	continue;
		822	}
		823	else
		824	{
		825	if (!req_invoke (req))
		826	{
		827	req_destroy (req);
		828	unblock_sig ();
		829	croak (0);
		830	}
		831
		832	count++;
		833	}
		834
		835	req_destroy (req);
		836
		837	if (maxreqs && !--maxreqs)
		838	break;
		839
		840	if (max_poll_time)
		841	{
		842	gettimeofday (&tv_now, 0);
		843
		844	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		845	break;
		846	}
		847	}
		848
		849	if (nreqs <= max_outstanding)
		850	break;
		851
651	poll_wait ();	852	poll_wait ();
652	poll_cb ();	853
		854	++maxreqs;
653	}	855	}
654	}
655		856
656	static void create_pipe ()	857	unblock_sig ();
657	{	858	return count;
658	if (pipe (respipe))
659	croak ("unable to initialize result pipe");
660
661	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
662	croak ("cannot set result pipe to nonblocking mode");
663
664	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
665	croak ("cannot set result pipe to nonblocking mode");
666	}	859	}
667		860
668	/*****************************************************************************/	861	/*****************************************************************************/
669	/* work around various missing functions */	862	/* work around various missing functions */
670		863
…		…
675	/*	868	/*
676	* make our pread/pwrite safe against themselves, but not against	869	* make our pread/pwrite safe against themselves, but not against
677	* 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,
678	* but that's your problem, not mine.	871	* but that's your problem, not mine.
679	*/	872	*/
680	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	873	static mutex_t preadwritelock = X_MUTEX_INIT;
681		874
682	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)
683	{	876	{
684	ssize_t res;	877	ssize_t res;
685	off_t ooffset;	878	off_t ooffset;
686		879
687	LOCK (preadwritelock);	880	X_LOCK (preadwritelock);
688	ooffset = lseek (fd, 0, SEEK_CUR);	881	ooffset = lseek (fd, 0, SEEK_CUR);
689	lseek (fd, offset, SEEK_SET);	882	lseek (fd, offset, SEEK_SET);
690	res = read (fd, buf, count);	883	res = read (fd, buf, count);
691	lseek (fd, ooffset, SEEK_SET);	884	lseek (fd, ooffset, SEEK_SET);
692	UNLOCK (preadwritelock);	885	X_UNLOCK (preadwritelock);
693		886
694	return res;	887	return res;
695	}	888	}
696		889
697	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)
698	{	891	{
699	ssize_t res;	892	ssize_t res;
700	off_t ooffset;	893	off_t ooffset;
701		894
702	LOCK (preadwritelock);	895	X_LOCK (preadwritelock);
703	ooffset = lseek (fd, 0, SEEK_CUR);	896	ooffset = lseek (fd, 0, SEEK_CUR);
704	lseek (fd, offset, SEEK_SET);	897	lseek (fd, offset, SEEK_SET);
705	res = write (fd, buf, count);	898	res = write (fd, buf, count);
706	lseek (fd, offset, SEEK_SET);	899	lseek (fd, offset, SEEK_SET);
707	UNLOCK (preadwritelock);	900	X_UNLOCK (preadwritelock);
708		901
709	return res;	902	return res;
710	}	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
711	#endif	932	#endif
712		933
713	#if !HAVE_FDATASYNC	934	#if !HAVE_FDATASYNC
714	# define fdatasync fsync	935	# define fdatasync fsync
715	#endif	936	#endif
716		937
717	#if !HAVE_READAHEAD	938	#if !HAVE_READAHEAD
718	# define readahead aio_readahead	939	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
719		940
720	static ssize_t readahead (int fd, off_t offset, size_t count)	941	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
721	{	942	{
		943	size_t todo = count;
722	dBUF;	944	dBUF;
723		945
724	while (count > 0)	946	while (todo > 0)
725	{	947	{
726	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	948	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
727		949
728	pread (fd, aio_buf, len, offset);	950	pread (fd, aio_buf, len, offset);
729	offset += len;	951	offset += len;
730	count -= len;	952	todo -= len;
731	}	953	}
732		954
733	errno = 0;	955	errno = 0;
		956	return count;
734	}	957	}
		958
735	#endif	959	#endif
736		960
737	#if !HAVE_READDIR_R	961	#if !HAVE_READDIR_R
738	# define readdir_r aio_readdir_r	962	# define readdir_r aio_readdir_r
739		963
740	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	964	static mutex_t readdirlock = X_MUTEX_INIT;
741		965
742	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)
743	{	967	{
744	struct dirent *e;	968	X_DIRENT *e;
745	int errorno;	969	int errorno;
746		970
747	LOCK (readdirlock);	971	X_LOCK (readdirlock);
748		972
749	e = readdir (dirp);	973	e = readdir (dirp);
750	errorno = errno;	974	errorno = errno;
751		975
752	if (e)	976	if (e)
…		…
755	strcpy (ent->d_name, e->d_name);	979	strcpy (ent->d_name, e->d_name);
756	}	980	}
757	else	981	else
758	*res = 0;	982	*res = 0;
759		983
760	UNLOCK (readdirlock);	984	X_UNLOCK (readdirlock);
761		985
762	errno = errorno;	986	errno = errorno;
763	return e ? 0 : -1;	987	return e ? 0 : -1;
764	}	988	}
765	#endif	989	#endif
…		…
784	{	1008	{
785	off_t sbytes;	1009	off_t sbytes;
786	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	1010	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
787		1011
788	if (res < 0 && sbytes)	1012	if (res < 0 && sbytes)
789	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	1013	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
790	res = sbytes;	1014	res = sbytes;
791	}	1015	}
792		1016
793	# elif __hpux	1017	# elif __hpux
794	res = sendfile (ofd, ifd, offset, count, 0, 0);	1018	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
861	static void scandir_ (aio_req req, worker *self)	1085	static void scandir_ (aio_req req, worker *self)
862	{	1086	{
863	DIR *dirp;	1087	DIR *dirp;
864	union	1088	union
865	{	1089	{
866	struct dirent d;	1090	X_DIRENT d;
867	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1091	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
868	} *u;	1092	} *u;
869	struct dirent *entp;	1093	X_DIRENT *entp;
870	char *name, *names;	1094	char *name, *names;
871	int memlen = 4096;	1095	int memlen = 4096;
872	int memofs = 0;	1096	int memofs = 0;
873	int res = 0;	1097	int res = 0;
874	int errorno;
875		1098
876	LOCK (wrklock);	1099	X_LOCK (wrklock);
877	self->dirp = dirp = opendir (req->dataptr);	1100	self->dirp = dirp = opendir (req->ptr1);
878	self->dbuf = u = malloc (sizeof (*u));	1101	self->dbuf = u = malloc (sizeof (*u));
		1102	req->flags |= FLAG_PTR2_FREE;
		1103	req->ptr2 = names = malloc (memlen);
879	UNLOCK (wrklock);	1104	X_UNLOCK (wrklock);
880
881	req->data2ptr = names = malloc (memlen);
882		1105
883	if (dirp && u && names)	1106	if (dirp && u && names)
884	for (;;)	1107	for (;;)
885	{	1108	{
886	errno = 0;	1109	errno = 0;
…		…
898	res++;	1121	res++;
899		1122
900	while (memofs + len > memlen)	1123	while (memofs + len > memlen)
901	{	1124	{
902	memlen *= 2;	1125	memlen *= 2;
903	LOCK (wrklock);	1126	X_LOCK (wrklock);
904	req->data2ptr = names = realloc (names, memlen);	1127	req->ptr2 = names = realloc (names, memlen);
905	UNLOCK (wrklock);	1128	X_UNLOCK (wrklock);
906		1129
907	if (!names)	1130	if (!names)
908	break;	1131	break;
909	}	1132	}
910		1133
…		…
919	req->result = res;	1142	req->result = res;
920	}	1143	}
921		1144
922	/*****************************************************************************/	1145	/*****************************************************************************/
923		1146
924	static void *aio_proc (void *thr_arg)	1147	X_THREAD_PROC (aio_proc)
925	{	1148	{
		1149	{//D
926	aio_req req;	1150	aio_req req;
927	int type;	1151	struct timespec ts;
928	worker *self = (worker *)thr_arg;	1152	worker *self = (worker *)thr_arg;
929		1153
930	do	1154	/* try to distribute timeouts somewhat randomly */
		1155	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1156
		1157	for (;;)
931	{	1158	{
		1159	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1160
932	LOCK (reqlock);	1161	X_LOCK (reqlock);
933		1162
934	for (;;)	1163	for (;;)
935	{	1164	{
936	self->req = req = reqq_shift (&req_queue);	1165	self->req = req = reqq_shift (&req_queue);
937		1166
938	if (req)	1167	if (req)
939	break;	1168	break;
940		1169
941	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;
942	}	1191	}
943		1192
		1193	--nready;
		1194
944	UNLOCK (reqlock);	1195	X_UNLOCK (reqlock);
945		1196
946	errno = 0; /* strictly unnecessary */	1197	errno = 0; /* strictly unnecessary */
947	type = req->type; /* remember type for QUIT check */
948		1198
949	if (!(req->flags & FLAG_CANCELLED))	1199	if (!(req->flags & FLAG_CANCELLED))
950	switch (type)	1200	switch (req->type)
951	{	1201	{
952	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1202	case REQ_READ: req->result = req->offs >= 0
953	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;
954		1208
955	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;
956	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;
957		1211
958	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;
959	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;
960	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;
961		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
962	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;
963	case REQ_CLOSE: req->result = close (req->fd); break;	1224	case REQ_CLOSE: req->result = close (req->int1); break;
964	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1225	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
965	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;
966	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1228	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
967	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1229	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
968	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;
969		1233
970	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1234	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
971	case REQ_FSYNC: req->result = fsync (req->fd); break;	1235	case REQ_FSYNC: req->result = fsync (req->int1); break;
972	case REQ_READDIR: scandir_ (req, self); break;	1236	case REQ_READDIR: scandir_ (req, self); break;
973		1237
974	case REQ_BUSY:	1238	case REQ_BUSY:
		1239	#ifdef _WIN32
		1240	Sleep (req->nv1 * 1000.);
		1241	#else
975	{	1242	{
976	struct timeval tv;	1243	struct timeval tv;
977		1244
978	tv.tv_sec = req->fd;	1245	tv.tv_sec = req->nv1;
979	tv.tv_usec = req->fd2;	1246	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
980		1247
981	req->result = select (0, 0, 0, 0, &tv);	1248	req->result = select (0, 0, 0, 0, &tv);
982	}	1249	}
		1250	#endif
		1251	break;
		1252
		1253	case REQ_UTIME:
		1254	case REQ_FUTIME:
		1255	{
		1256	struct timeval tv[2];
		1257	struct timeval *times;
		1258
		1259	if (req->nv1 != -1. || req->nv2 != -1.)
		1260	{
		1261	tv[0].tv_sec = req->nv1;
		1262	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1263	tv[1].tv_sec = req->nv2;
		1264	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1265
		1266	times = tv;
		1267	}
		1268	else
		1269	times = 0;
		1270
		1271
		1272	req->result = req->type == REQ_FUTIME
		1273	? futimes (req->int1, times)
		1274	: utimes (req->ptr1, times);
		1275	}
983		1276
984	case REQ_GROUP:	1277	case REQ_GROUP:
985	case REQ_NOP:	1278	case REQ_NOP:
		1279	break;
		1280
986	case REQ_QUIT:	1281	case REQ_QUIT:
987	break;	1282	goto quit;
988		1283
989	default:	1284	default:
990	req->result = ENOSYS;	1285	req->result = -1;
991	break;	1286	break;
992	}	1287	}
993		1288
994	req->errorno = errno;	1289	req->errorno = errno;
995		1290
996	LOCK (reslock);	1291	X_LOCK (reslock);
		1292
		1293	++npending;
997		1294
998	if (!reqq_push (&res_queue, req))	1295	if (!reqq_push (&res_queue, req))
		1296	{
999	/* write a dummy byte to the pipe so fh becomes ready */	1297	/* write a dummy byte to the pipe so fh becomes ready */
1000	write (respipe [1], &respipe, 1);	1298	send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
		1299
		1300	/* optionally signal the main thread asynchronously */
		1301	if (main_sig)
		1302	pthread_kill (main_tid, main_sig);
		1303	}
1001		1304
1002	self->req = 0;	1305	self->req = 0;
1003	worker_clear (self);	1306	worker_clear (self);
1004		1307
1005	UNLOCK (reslock);	1308	X_UNLOCK (reslock);
1006	}	1309	}
1007	while (type != REQ_QUIT);
1008		1310
		1311	quit:
1009	LOCK (wrklock);	1312	X_LOCK (wrklock);
1010	worker_free (self);	1313	worker_free (self);
1011	UNLOCK (wrklock);	1314	X_UNLOCK (wrklock);
1012		1315
1013	return 0;	1316	return 0;
		1317	}//D
1014	}	1318	}
1015		1319
1016	/*****************************************************************************/	1320	/*****************************************************************************/
1017		1321
1018	static void atfork_prepare (void)	1322	static void atfork_prepare (void)
1019	{	1323	{
1020	LOCK (wrklock);	1324	X_LOCK (wrklock);
1021	LOCK (reqlock);	1325	X_LOCK (reqlock);
1022	LOCK (reslock);	1326	X_LOCK (reslock);
1023	#if !HAVE_PREADWRITE	1327	#if !HAVE_PREADWRITE
1024	LOCK (preadwritelock);	1328	X_LOCK (preadwritelock);
1025	#endif	1329	#endif
1026	#if !HAVE_READDIR_R	1330	#if !HAVE_READDIR_R
1027	LOCK (readdirlock);	1331	X_LOCK (readdirlock);
1028	#endif	1332	#endif
1029	}	1333	}
1030		1334
1031	static void atfork_parent (void)	1335	static void atfork_parent (void)
1032	{	1336	{
1033	#if !HAVE_READDIR_R	1337	#if !HAVE_READDIR_R
1034	UNLOCK (readdirlock);	1338	X_UNLOCK (readdirlock);
1035	#endif	1339	#endif
1036	#if !HAVE_PREADWRITE	1340	#if !HAVE_PREADWRITE
1037	UNLOCK (preadwritelock);	1341	X_UNLOCK (preadwritelock);
1038	#endif	1342	#endif
1039	UNLOCK (reslock);	1343	X_UNLOCK (reslock);
1040	UNLOCK (reqlock);	1344	X_UNLOCK (reqlock);
1041	UNLOCK (wrklock);	1345	X_UNLOCK (wrklock);
1042	}	1346	}
1043		1347
1044	static void atfork_child (void)	1348	static void atfork_child (void)
1045	{	1349	{
1046	aio_req prv;	1350	aio_req prv;
1047		1351
1048	while (prv = reqq_shift (&req_queue))	1352	while (prv = reqq_shift (&req_queue))
1049	req_free (prv);	1353	req_destroy (prv);
1050		1354
1051	while (prv = reqq_shift (&res_queue))	1355	while (prv = reqq_shift (&res_queue))
1052	req_free (prv);	1356	req_destroy (prv);
1053		1357
1054	while (wrk_first.next != &wrk_first)	1358	while (wrk_first.next != &wrk_first)
1055	{	1359	{
1056	worker *wrk = wrk_first.next;	1360	worker *wrk = wrk_first.next;
1057		1361
1058	if (wrk->req)	1362	if (wrk->req)
1059	req_free (wrk->req);	1363	req_destroy (wrk->req);
1060		1364
1061	worker_clear (wrk);	1365	worker_clear (wrk);
1062	worker_free (wrk);	1366	worker_free (wrk);
1063	}	1367	}
1064		1368
1065	started = 0;	1369	started = 0;
		1370	idle = 0;
1066	nreqs = 0;	1371	nreqs = 0;
		1372	nready = 0;
		1373	npending = 0;
1067		1374
1068	close (respipe [0]);	1375	PerlSock_closesocket (respipe [0]);
1069	close (respipe [1]);	1376	PerlSock_closesocket (respipe [1]);
		1377
1070	create_pipe ();	1378	create_pipe (respipe);
1071		1379
1072	atfork_parent ();	1380	atfork_parent ();
1073	}	1381	}
1074		1382
1075	#define dREQ \	1383	#define dREQ \
…		…
1098	PROTOTYPES: ENABLE	1406	PROTOTYPES: ENABLE
1099		1407
1100	BOOT:	1408	BOOT:
1101	{	1409	{
1102	HV *stash = gv_stashpv ("IO::AIO", 1);	1410	HV *stash = gv_stashpv ("IO::AIO", 1);
		1411
1103	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1412	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1104	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1413	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1105	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);
1106		1424
1107	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
1108	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1433	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1109	}	1434	}
1110		1435
1111	void	1436	void
1112	min_parallel (nthreads)	1437	max_poll_reqs (int nreqs)
1113	int nthreads
1114	PROTOTYPE: $	1438	PROTOTYPE: $
		1439	CODE:
		1440	max_poll_reqs = nreqs;
1115		1441
1116	void	1442	void
1117	max_parallel (nthreads)	1443	max_poll_time (double nseconds)
1118	int nthreads
1119	PROTOTYPE: $	1444	PROTOTYPE: $
		1445	CODE:
		1446	max_poll_time = nseconds * AIO_TICKS;
		1447
		1448	void
		1449	min_parallel (int nthreads)
		1450	PROTOTYPE: $
		1451
		1452	void
		1453	max_parallel (int nthreads)
		1454	PROTOTYPE: $
		1455
		1456	void
		1457	max_idle (int nthreads)
		1458	PROTOTYPE: $
		1459	CODE:
		1460	set_max_idle (nthreads);
1120		1461
1121	int	1462	int
1122	max_outstanding (nreqs)	1463	max_outstanding (int maxreqs)
1123	int nreqs	1464	PROTOTYPE: $
1124	PROTOTYPE: $
1125	CODE:	1465	CODE:
1126	RETVAL = max_outstanding;	1466	RETVAL = max_outstanding;
1127	max_outstanding = nreqs;	1467	max_outstanding = maxreqs;
		1468	OUTPUT:
		1469	RETVAL
1128		1470
1129	void	1471	void
1130	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1472	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1131	SV * pathname
1132	int flags
1133	int mode
1134	SV * callback
1135	PROTOTYPE: $$$;$	1473	PROTOTYPE: $$$;$
1136	PPCODE:	1474	PPCODE:
1137	{	1475	{
1138	dREQ;	1476	dREQ;
1139		1477
1140	req->type = REQ_OPEN;	1478	req->type = REQ_OPEN;
1141	req->data = newSVsv (pathname);	1479	req->sv1 = newSVsv (pathname);
1142	req->dataptr = SvPVbyte_nolen (req->data);	1480	req->ptr1 = SvPVbyte_nolen (req->sv1);
1143	req->fd = flags;	1481	req->int1 = flags;
1144	req->mode = mode;	1482	req->mode = mode;
1145		1483
1146	REQ_SEND;	1484	REQ_SEND;
1147	}	1485	}
1148		1486
1149	void	1487	void
1150	aio_close (fh,callback=&PL_sv_undef)	1488	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1151	SV * fh
1152	SV * callback
1153	PROTOTYPE: $;$	1489	PROTOTYPE: $;$
1154	ALIAS:	1490	ALIAS:
1155	aio_close = REQ_CLOSE	1491	aio_close = REQ_CLOSE
1156	aio_fsync = REQ_FSYNC	1492	aio_fsync = REQ_FSYNC
1157	aio_fdatasync = REQ_FDATASYNC	1493	aio_fdatasync = REQ_FDATASYNC
1158	PPCODE:	1494	PPCODE:
1159	{	1495	{
1160	dREQ;	1496	dREQ;
1161		1497
1162	req->type = ix;	1498	req->type = ix;
1163	req->fh = newSVsv (fh);	1499	req->sv1 = newSVsv (fh);
1164	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1500	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1165		1501
1166	REQ_SEND (req);	1502	REQ_SEND (req);
1167	}	1503	}
1168		1504
1169	void	1505	void
1170	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)
1171	SV * fh
1172	UV offset
1173	UV length
1174	SV * data
1175	UV dataoffset
1176	SV * callback
1177	ALIAS:	1507	ALIAS:
1178	aio_read = REQ_READ	1508	aio_read = REQ_READ
1179	aio_write = REQ_WRITE	1509	aio_write = REQ_WRITE
1180	PROTOTYPE: $$$$$;$	1510	PROTOTYPE: $$$$$;$
1181	PPCODE:	1511	PPCODE:
1182	{	1512	{
1183	aio_req req;
1184	STRLEN svlen;	1513	STRLEN svlen;
1185	char *svptr = SvPVbyte (data, svlen);	1514	char *svptr = SvPVbyte (data, svlen);
		1515	UV len = SvUV (length);
1186		1516
1187	SvUPGRADE (data, SVt_PV);	1517	SvUPGRADE (data, SVt_PV);
1188	SvPOK_on (data);	1518	SvPOK_on (data);
1189		1519
1190	if (dataoffset < 0)	1520	if (dataoffset < 0)
1191	dataoffset += svlen;	1521	dataoffset += svlen;
1192		1522
1193	if (dataoffset < 0 || dataoffset > svlen)	1523	if (dataoffset < 0 || dataoffset > svlen)
1194	croak ("data offset outside of string");	1524	croak ("dataoffset outside of data scalar");
1195		1525
1196	if (ix == REQ_WRITE)	1526	if (ix == REQ_WRITE)
1197	{	1527	{
1198	/* write: check length and adjust. */	1528	/* write: check length and adjust. */
1199	if (length < 0 || length + dataoffset > svlen)	1529	if (!SvOK (length) || len + dataoffset > svlen)
1200	length = svlen - dataoffset;	1530	len = svlen - dataoffset;
1201	}	1531	}
1202	else	1532	else
1203	{	1533	{
1204	/* read: grow scalar as necessary */	1534	/* read: grow scalar as necessary */
1205	svptr = SvGROW (data, length + dataoffset);	1535	svptr = SvGROW (data, len + dataoffset + 1);
1206	}	1536	}
1207		1537
1208	if (length < 0)	1538	if (len < 0)
1209	croak ("length must not be negative");	1539	croak ("length must not be negative");
1210		1540
1211	{	1541	{
1212	dREQ;	1542	dREQ;
1213		1543
1214	req->type = ix;	1544	req->type = ix;
1215	req->fh = newSVsv (fh);	1545	req->sv1 = newSVsv (fh);
1216	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1546	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1217	: IoOFP (sv_2io (fh)));	1547	: IoOFP (sv_2io (fh)));
		1548	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1218	req->offset = offset;	1549	req->size = len;
1219	req->length = length;
1220	req->data = SvREFCNT_inc (data);	1550	req->sv2 = SvREFCNT_inc (data);
1221	req->dataptr = (char *)svptr + dataoffset;	1551	req->ptr1 = (char *)svptr + dataoffset;
		1552	req->stroffset = dataoffset;
1222		1553
1223	if (!SvREADONLY (data))	1554	if (!SvREADONLY (data))
1224	{	1555	{
1225	SvREADONLY_on (data);	1556	SvREADONLY_on (data);
1226	req->data2ptr = (void *)data;	1557	req->flags |= FLAG_SV2_RO_OFF;
1227	}	1558	}
1228		1559
1229	REQ_SEND;	1560	REQ_SEND;
1230	}	1561	}
1231	}	1562	}
1232		1563
1233	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
1234	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)
1235	SV * out_fh
1236	SV * in_fh
1237	UV in_offset
1238	UV length
1239	SV * callback
1240	PROTOTYPE: $$$$;$	1586	PROTOTYPE: $$$$;$
1241	PPCODE:	1587	PPCODE:
1242	{	1588	{
1243	dREQ;	1589	dREQ;
1244		1590
1245	req->type = REQ_SENDFILE;	1591	req->type = REQ_SENDFILE;
1246	req->fh = newSVsv (out_fh);	1592	req->sv1 = newSVsv (out_fh);
1247	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1593	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1248	req->fh2 = newSVsv (in_fh);	1594	req->sv2 = newSVsv (in_fh);
1249	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1595	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1250	req->offset = in_offset;	1596	req->offs = SvVAL64 (in_offset);
1251	req->length = length;	1597	req->size = length;
1252		1598
1253	REQ_SEND;	1599	REQ_SEND;
1254	}	1600	}
1255		1601
1256	void	1602	void
1257	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1603	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1258	SV * fh
1259	UV offset
1260	IV length
1261	SV * callback
1262	PROTOTYPE: $$$;$	1604	PROTOTYPE: $$$;$
1263	PPCODE:	1605	PPCODE:
1264	{	1606	{
1265	dREQ;	1607	dREQ;
1266		1608
1267	req->type = REQ_READAHEAD;	1609	req->type = REQ_READAHEAD;
1268	req->fh = newSVsv (fh);	1610	req->sv1 = newSVsv (fh);
1269	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1611	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1270	req->offset = offset;	1612	req->offs = SvVAL64 (offset);
1271	req->length = length;	1613	req->size = length;
1272		1614
1273	REQ_SEND;	1615	REQ_SEND;
1274	}	1616	}
1275		1617
1276	void	1618	void
1277	aio_stat (fh_or_path,callback=&PL_sv_undef)	1619	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1278	SV * fh_or_path
1279	SV * callback
1280	ALIAS:	1620	ALIAS:
1281	aio_stat = REQ_STAT	1621	aio_stat = REQ_STAT
1282	aio_lstat = REQ_LSTAT	1622	aio_lstat = REQ_LSTAT
1283	PPCODE:	1623	PPCODE:
1284	{	1624	{
1285	dREQ;	1625	dREQ;
1286		1626
1287	New (0, req->statdata, 1, Stat_t);	1627	req->ptr2 = malloc (sizeof (Stat_t));
1288	if (!req->statdata)	1628	if (!req->ptr2)
1289	{	1629	{
1290	req_free (req);	1630	req_destroy (req);
1291	croak ("out of memory during aio_req->statdata allocation");	1631	croak ("out of memory during aio_stat statdata allocation");
1292	}	1632	}
		1633
		1634	req->flags |= FLAG_PTR2_FREE;
		1635	req->sv1 = newSVsv (fh_or_path);
1293		1636
1294	if (SvPOK (fh_or_path))	1637	if (SvPOK (fh_or_path))
1295	{	1638	{
1296	req->type = ix;	1639	req->type = ix;
1297	req->data = newSVsv (fh_or_path);
1298	req->dataptr = SvPVbyte_nolen (req->data);	1640	req->ptr1 = SvPVbyte_nolen (req->sv1);
1299	}	1641	}
1300	else	1642	else
1301	{	1643	{
1302	req->type = REQ_FSTAT;	1644	req->type = REQ_FSTAT;
1303	req->fh = newSVsv (fh_or_path);
1304	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1645	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1305	}	1646	}
1306		1647
1307	REQ_SEND;	1648	REQ_SEND;
1308	}	1649	}
1309		1650
1310	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
1311	aio_unlink (pathname,callback=&PL_sv_undef)	1746	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1312	SV * pathname
1313	SV * callback
1314	ALIAS:	1747	ALIAS:
1315	aio_unlink = REQ_UNLINK	1748	aio_unlink = REQ_UNLINK
1316	aio_rmdir = REQ_RMDIR	1749	aio_rmdir = REQ_RMDIR
1317	aio_readdir = REQ_READDIR	1750	aio_readdir = REQ_READDIR
1318	PPCODE:	1751	PPCODE:
1319	{	1752	{
1320	dREQ;	1753	dREQ;
1321		1754
1322	req->type = ix;	1755	req->type = ix;
1323	req->data = newSVsv (pathname);	1756	req->sv1 = newSVsv (pathname);
1324	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;
1325		1767
		1768	req->type = REQ_MKDIR;
		1769	req->sv1 = newSVsv (pathname);
		1770	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1771	req->mode = mode;
		1772
1326	REQ_SEND;	1773	REQ_SEND;
1327	}	1774	}
1328		1775
1329	void	1776	void
1330	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1331	SV * oldpath
1332	SV * newpath
1333	SV * callback
1334	ALIAS:	1778	ALIAS:
1335	aio_link = REQ_LINK	1779	aio_link = REQ_LINK
1336	aio_symlink = REQ_SYMLINK	1780	aio_symlink = REQ_SYMLINK
1337	aio_rename = REQ_RENAME	1781	aio_rename = REQ_RENAME
1338	PPCODE:	1782	PPCODE:
1339	{	1783	{
1340	dREQ;	1784	dREQ;
1341		1785
1342	req->type = ix;	1786	req->type = ix;
1343	req->fh = newSVsv (oldpath);	1787	req->sv2 = newSVsv (oldpath);
1344	req->data2ptr = SvPVbyte_nolen (req->fh);	1788	req->ptr2 = SvPVbyte_nolen (req->sv2);
1345	req->data = newSVsv (newpath);	1789	req->sv1 = newSVsv (newpath);
1346	req->dataptr = SvPVbyte_nolen (req->data);	1790	req->ptr1 = SvPVbyte_nolen (req->sv1);
1347		1791
1348	REQ_SEND;	1792	REQ_SEND;
1349	}	1793	}
1350		1794
1351	void	1795	void
1352	aio_busy (delay,callback=&PL_sv_undef)	1796	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1353	double delay
1354	SV * callback
1355	PPCODE:	1797	PPCODE:
1356	{	1798	{
1357	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;
1358		1815
1359	req->type = REQ_BUSY;	1816	req->type = REQ_BUSY;
1360	req->fd = delay < 0. ? 0 : delay;	1817	req->nv1 = delay < 0. ? 0. : delay;
1361	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1362		1818
1363	REQ_SEND;	1819	REQ_SEND;
1364	}	1820	}
1365		1821
1366	void	1822	void
1367	aio_group (callback=&PL_sv_undef)	1823	aio_group (SV *callback=&PL_sv_undef)
1368	SV * callback
1369	PROTOTYPE: ;$	1824	PROTOTYPE: ;$
1370	PPCODE:	1825	PPCODE:
1371	{	1826	{
1372	dREQ;	1827	dREQ;
1373		1828
1374	req->type = REQ_GROUP;	1829	req->type = REQ_GROUP;
		1830
1375	req_send (req);	1831	req_send (req);
1376
1377	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1832	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1378	}	1833	}
1379		1834
1380	void	1835	void
1381	aio_nop (callback=&PL_sv_undef)	1836	aio_nop (SV *callback=&PL_sv_undef)
1382	SV * callback
1383	PPCODE:	1837	PPCODE:
1384	{	1838	{
1385	dREQ;	1839	dREQ;
1386		1840
1387	req->type = REQ_NOP;	1841	req->type = REQ_NOP;
1388		1842
1389	REQ_SEND;	1843	REQ_SEND;
1390	}	1844	}
1391		1845
1392	void	1846	int
1393	aioreq_pri (int pri = DEFAULT_PRI)	1847	aioreq_pri (int pri = 0)
1394	CODE:	1848	PROTOTYPE: ;$
		1849	CODE:
		1850	RETVAL = next_pri - PRI_BIAS;
		1851	if (items > 0)
		1852	{
1395	if (pri < PRI_MIN) pri = PRI_MIN;	1853	if (pri < PRI_MIN) pri = PRI_MIN;
1396	if (pri > PRI_MAX) pri = PRI_MAX;	1854	if (pri > PRI_MAX) pri = PRI_MAX;
1397	next_pri = pri + PRI_BIAS;	1855	next_pri = pri + PRI_BIAS;
		1856	}
		1857	OUTPUT:
		1858	RETVAL
1398		1859
1399	void	1860	void
1400	aioreq_nice (int nice = 0)	1861	aioreq_nice (int nice = 0)
1401	CODE:	1862	CODE:
1402	nice = next_pri - nice;	1863	nice = next_pri - nice;
1403	if (nice < PRI_MIN) nice = PRI_MIN;	1864	if (nice < PRI_MIN) nice = PRI_MIN;
1404	if (nice > PRI_MAX) nice = PRI_MAX;	1865	if (nice > PRI_MAX) nice = PRI_MAX;
1405	next_pri = nice + PRI_BIAS;	1866	next_pri = nice + PRI_BIAS;
1406		1867
1407	void	1868	void
1408	flush ()	1869	flush ()
1409	PROTOTYPE:	1870	PROTOTYPE:
1410	CODE:	1871	CODE:
…		…
1412	{	1873	{
1413	poll_wait ();	1874	poll_wait ();
1414	poll_cb ();	1875	poll_cb ();
1415	}	1876	}
1416		1877
1417	void	1878	int
1418	poll()	1879	poll()
1419	PROTOTYPE:	1880	PROTOTYPE:
1420	CODE:	1881	CODE:
1421	if (nreqs)
1422	{
1423	poll_wait ();	1882	poll_wait ();
1424	poll_cb ();	1883	RETVAL = poll_cb ();
1425	}	1884	OUTPUT:
		1885	RETVAL
1426		1886
1427	int	1887	int
1428	poll_fileno()	1888	poll_fileno()
1429	PROTOTYPE:	1889	PROTOTYPE:
1430	CODE:	1890	CODE:
…		…
1442		1902
1443	void	1903	void
1444	poll_wait()	1904	poll_wait()
1445	PROTOTYPE:	1905	PROTOTYPE:
1446	CODE:	1906	CODE:
1447	if (nreqs)
1448	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	}
1449		1945
1450	int	1946	int
1451	nreqs()	1947	nreqs()
1452	PROTOTYPE:	1948	PROTOTYPE:
1453	CODE:	1949	CODE:
1454	RETVAL = nreqs;	1950	RETVAL = nreqs;
1455	OUTPUT:	1951	OUTPUT:
1456	RETVAL	1952	RETVAL
1457		1953
		1954	int
		1955	nready()
		1956	PROTOTYPE:
		1957	CODE:
		1958	RETVAL = get_nready ();
		1959	OUTPUT:
		1960	RETVAL
		1961
		1962	int
		1963	npending()
		1964	PROTOTYPE:
		1965	CODE:
		1966	RETVAL = get_npending ();
		1967	OUTPUT:
		1968	RETVAL
		1969
		1970	int
		1971	nthreads()
		1972	PROTOTYPE:
		1973	CODE:
		1974	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1975	RETVAL = started;
		1976	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		1977	OUTPUT:
		1978	RETVAL
		1979
1458	PROTOTYPES: DISABLE	1980	PROTOTYPES: DISABLE
1459		1981
1460	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1982	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1461		1983
1462	void	1984	void
…		…
1477	PPCODE:	1999	PPCODE:
1478	{	2000	{
1479	int i;	2001	int i;
1480	aio_req req;	2002	aio_req req;
1481		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
1482	if (grp->fd == 2)	2007	if (grp->int1 == 2)
1483	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");
1484		2009
1485	for (i = 1; i < items; ++i )	2010	for (i = 1; i < items; ++i )
1486	{	2011	{
1487	if (GIMME_V != G_VOID)	2012	if (GIMME_V != G_VOID)
…		…
1489		2014
1490	req = SvAIO_REQ (ST (i));	2015	req = SvAIO_REQ (ST (i));
1491		2016
1492	if (req)	2017	if (req)
1493	{	2018	{
1494	++grp->length;	2019	++grp->size;
1495	req->grp = grp;	2020	req->grp = grp;
1496		2021
1497	req->grp_prev = 0;	2022	req->grp_prev = 0;
1498	req->grp_next = grp->grp_first;	2023	req->grp_next = grp->grp_first;
1499		2024
…		…
1513	void	2038	void
1514	result (aio_req grp, ...)	2039	result (aio_req grp, ...)
1515	CODE:	2040	CODE:
1516	{	2041	{
1517	int i;	2042	int i;
		2043	AV *av;
		2044
		2045	grp->errorno = errno;
		2046
1518	AV *av = newAV ();	2047	av = newAV ();
1519		2048
1520	for (i = 1; i < items; ++i )	2049	for (i = 1; i < items; ++i )
1521	av_push (av, newSVsv (ST (i)));	2050	av_push (av, newSVsv (ST (i)));
1522		2051
1523	SvREFCNT_dec (grp->data);	2052	SvREFCNT_dec (grp->sv1);
1524	grp->data = (SV *)av;	2053	grp->sv1 = (SV *)av;
1525	}	2054	}
		2055
		2056	void
		2057	errno (aio_req grp, int errorno = errno)
		2058	CODE:
		2059	grp->errorno = errorno;
1526		2060
1527	void	2061	void
1528	limit (aio_req grp, int limit)	2062	limit (aio_req grp, int limit)
1529	CODE:	2063	CODE:
1530	grp->fd2 = limit;	2064	grp->int2 = limit;
1531	aio_grp_feed (grp);	2065	aio_grp_feed (grp);
1532		2066
1533	void	2067	void
1534	feed (aio_req grp, SV *callback=&PL_sv_undef)	2068	feed (aio_req grp, SV *callback=&PL_sv_undef)
1535	CODE:	2069	CODE:
1536	{	2070	{
1537	SvREFCNT_dec (grp->fh2);	2071	SvREFCNT_dec (grp->sv2);
1538	grp->fh2 = newSVsv (callback);	2072	grp->sv2 = newSVsv (callback);
1539		2073
1540	if (grp->fd2 <= 0)	2074	if (grp->int2 <= 0)
1541	grp->fd2 = 2;	2075	grp->int2 = 2;
1542		2076
1543	aio_grp_feed (grp);	2077	aio_grp_feed (grp);
1544	}	2078	}
1545		2079

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