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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.83 by root, Sat Oct 28 00:17:30 2006 UTC vs.
Revision 1.103 by root, Sun Jul 8 09:09:34 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 stat
		30	# undef fstat
		31	# define lstat stat
		32	# undef truncate
		33	# undef ftruncate
		34	# undef open
		35	# undef close
		36	# undef unlink
		37	# undef rmdir
		38	# undef rename
		39	# undef lseek
		40
		41	# define chown(a,b,c) (errno = ENOSYS, -1)
		42	# define fchown(a,b,c) (errno = ENOSYS, -1)
		43	# define fchmod(a,b) (errno = ENOSYS, -1)
		44	# define symlink(a,b) (errno = ENOSYS, -1)
		45	# define readlink(a,b,c) (errno = ENOSYS, -1)
		46	# define mknod(a,b,c) (errno = ENOSYS, -1)
		47	# define truncate(a,b) (errno = ENOSYS, -1)
		48	# define ftruncate(fd,o) chsize ((fd), (o))
		49	# define fsync(fd) _commit (fd)
		50	# define opendir(fd) (errno = ENOSYS, 0)
		51	# define readdir(fd) (errno = ENOSYS, -1)
		52	# define closedir(fd) (errno = ENOSYS, -1)
		53	# define mkdir(a,b) mkdir (a)
		54
		55	#else
		56
		57	# include "autoconf/config.h"
		58	# include <sys/time.h>
		59	# include <sys/select.h>
		60	# include <unistd.h>
		61	# include <utime.h>
		62	# include <signal.h>
		63	typedef struct dirent X_DIRENT;
		64
		65	#endif
32		66
33	#if HAVE_SENDFILE	67	#if HAVE_SENDFILE
34	# if __linux	68	# if __linux
35	# include <sys/sendfile.h>	69	# include <sys/sendfile.h>
36	# elif __freebsd	70	# elif __freebsd
…		…
43	# else	77	# else
44	# error sendfile support requested but not available	78	# error sendfile support requested but not available
45	# endif	79	# endif
46	#endif	80	#endif
47		81
		82	/* number of seconds after which idle threads exit */
		83	#define IDLE_TIMEOUT 10
		84
48	/* used for struct dirent, AIX doesn't provide it */	85	/* used for struct dirent, AIX doesn't provide it */
49	#ifndef NAME_MAX	86	#ifndef NAME_MAX
50	# define NAME_MAX 4096	87	# define NAME_MAX 4096
51	#endif	88	#endif
52		89
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 */	90	/* buffer size for various temporary buffers */
79	#define AIO_BUFSIZE 65536	91	#define AIO_BUFSIZE 65536
80		92
		93	/* use NV for 32 bit perls as it allows larger offsets */
		94	#if IVSIZE >= 8
		95	# define SvVAL64 SvIV
		96	#else
		97	# define SvVAL64 SvNV
		98	#endif
		99
81	#define dBUF \	100	#define dBUF \
82	char *aio_buf; \	101	char *aio_buf; \
83	LOCK (wrklock); \	102	X_LOCK (wrklock); \
84	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	103	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85	UNLOCK (wrklock); \	104	X_UNLOCK (wrklock); \
86	if (!aio_buf) \	105	if (!aio_buf) \
87	return -1;	106	return -1;
		107
		108	typedef SV SV8; /* byte-sv, used for argument-checking */
88		109
89	enum {	110	enum {
90	REQ_QUIT,	111	REQ_QUIT,
91	REQ_OPEN, REQ_CLOSE,	112	REQ_OPEN, REQ_CLOSE,
92	REQ_READ, REQ_WRITE, REQ_READAHEAD,	113	REQ_READ, REQ_WRITE,
93	REQ_SENDFILE,	114	REQ_READAHEAD, REQ_SENDFILE,
94	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	115	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		116	REQ_TRUNCATE, REQ_FTRUNCATE,
		117	REQ_UTIME, REQ_FUTIME,
		118	REQ_CHMOD, REQ_FCHMOD,
		119	REQ_CHOWN, REQ_FCHOWN,
95	REQ_FSYNC, REQ_FDATASYNC,	120	REQ_FSYNC, REQ_FDATASYNC,
96	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	121	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
97	REQ_MKNOD, REQ_READDIR,	122	REQ_MKNOD, REQ_READDIR,
98	REQ_LINK, REQ_SYMLINK,	123	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
99	REQ_GROUP, REQ_NOP,	124	REQ_GROUP, REQ_NOP,
100	REQ_BUSY,	125	REQ_BUSY,
101	};	126	};
102		127
103	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
105		130
106	typedef struct aio_cb	131	typedef struct aio_cb
107	{	132	{
108	struct aio_cb *volatile next;	133	struct aio_cb *volatile next;
109		134
110	SV *data, *callback;	135	SV *callback;
111	SV *fh, *fh2;	136	SV *sv1, *sv2;
112	void *dataptr, *data2ptr;	137	void *ptr1, *ptr2;
113	Stat_t *statdata;
114	off_t offset;	138	off_t offs;
115	size_t length;	139	size_t size;
116	ssize_t result;	140	ssize_t result;
		141	double nv1, nv2;
117		142
118	STRLEN dataoffset;	143	STRLEN stroffset;
119	int type;	144	int type;
120	int fd, fd2;	145	int int1, int2, int3;
121	int errorno;	146	int errorno;
122	mode_t mode; /* open */	147	mode_t mode; /* open */
123		148
124	unsigned char flags;	149	unsigned char flags;
125	unsigned char pri;	150	unsigned char pri;
…		…
127	SV *self; /* the perl counterpart of this request, if any */	152	SV *self; /* the perl counterpart of this request, if any */
128	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	153	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129	} aio_cb;	154	} aio_cb;
130		155
131	enum {	156	enum {
132	FLAG_CANCELLED = 0x01,	157	FLAG_CANCELLED = 0x01, /* request was cancelled */
		158	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		159	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
133	};	160	};
134		161
135	typedef aio_cb *aio_req;	162	typedef aio_cb *aio_req;
136	typedef aio_cb *aio_req_ornot;	163	typedef aio_cb *aio_req_ornot;
137		164
…		…
142	DEFAULT_PRI = 0,	169	DEFAULT_PRI = 0,
143	PRI_BIAS = -PRI_MIN,	170	PRI_BIAS = -PRI_MIN,
144	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	171	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145	};	172	};
146		173
		174	#define AIO_TICKS ((1000000 + 1023) >> 10)
		175
		176	static unsigned int max_poll_time = 0;
		177	static unsigned int max_poll_reqs = 0;
		178
		179	/* calculcate time difference in ~1/AIO_TICKS of a second */
		180	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		181	{
		182	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		183	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		184	}
		185
		186	static thread_t main_tid;
		187	static int main_sig;
		188	static int block_sig_level;
		189
		190	void block_sig ()
		191	{
		192	sigset_t ss;
		193
		194	if (block_sig_level++)
		195	return;
		196
		197	if (!main_sig)
		198	return;
		199
		200	sigemptyset (&ss);
		201	sigaddset (&ss, main_sig);
		202	pthread_sigmask (SIG_BLOCK, &ss, 0);
		203	}
		204
		205	void unblock_sig ()
		206	{
		207	sigset_t ss;
		208
		209	if (--block_sig_level)
		210	return;
		211
		212	if (!main_sig)
		213	return;
		214
		215	sigemptyset (&ss);
		216	sigaddset (&ss, main_sig);
		217	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		218	}
		219
147	static int next_pri = DEFAULT_PRI + PRI_BIAS;	220	static int next_pri = DEFAULT_PRI + PRI_BIAS;
148		221
149	static unsigned int started, wanted;	222	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		223
160	/* worker threads management */	224	/* worker threads management */
161	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	225	static mutex_t wrklock = X_MUTEX_INIT;
162		226
163	typedef struct worker {	227	typedef struct worker {
164	/* locked by wrklock */	228	/* locked by wrklock */
165	struct worker *prev, *next;	229	struct worker *prev, *next;
166		230
167	pthread_t tid;	231	thread_t tid;
168		232
169	/* locked by reslock, reqlock or wrklock */	233	/* locked by reslock, reqlock or wrklock */
170	aio_req req; /* currently processed request */	234	aio_req req; /* currently processed request */
171	void *dbuf;	235	void *dbuf;
172	DIR *dirp;	236	DIR *dirp;
…		…
196		260
197	free (wrk);	261	free (wrk);
198	}	262	}
199		263
200	static volatile unsigned int nreqs, nready, npending;	264	static volatile unsigned int nreqs, nready, npending;
		265	static volatile unsigned int max_idle = 4;
201	static volatile unsigned int max_outstanding = 0xffffffff;	266	static volatile unsigned int max_outstanding = 0xffffffff;
202	static int respipe [2];	267	static int respipe [2];
203		268
204	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	269	static mutex_t reslock = X_MUTEX_INIT;
205	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	270	static mutex_t reqlock = X_MUTEX_INIT;
206	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	271	static cond_t reqwait = X_COND_INIT;
207		272
208	#if WORDREAD_UNSAFE	273	#if WORDACCESS_UNSAFE
209		274
210	static unsigned int get_nready ()	275	static unsigned int get_nready ()
211	{	276	{
212	unsigned int retval;	277	unsigned int retval;
213		278
214	LOCK (reqlock);	279	X_LOCK (reqlock);
215	retval = nready;	280	retval = nready;
216	UNLOCK (reqlock);	281	X_UNLOCK (reqlock);
217		282
218	return retval;	283	return retval;
219	}	284	}
220		285
221	static unsigned int get_npending ()	286	static unsigned int get_npending ()
222	{	287	{
223	unsigned int retval;	288	unsigned int retval;
224		289
225	LOCK (reslock);	290	X_LOCK (reslock);
226	retval = npending;	291	retval = npending;
227	UNLOCK (reslock);	292	X_UNLOCK (reslock);
		293
		294	return retval;
		295	}
		296
		297	static unsigned int get_nthreads ()
		298	{
		299	unsigned int retval;
		300
		301	X_LOCK (wrklock);
		302	retval = started;
		303	X_UNLOCK (wrklock);
228		304
229	return retval;	305	return retval;
230	}	306	}
231		307
232	#else	308	#else
233		309
234	# define get_nready() nready	310	# define get_nready() nready
235	# define get_npending() npending	311	# define get_npending() npending
		312	# define get_nthreads() started
236		313
237	#endif	314	#endif
238		315
239	/*	316	/*
240	* a somewhat faster data structure might be nice, but	317	* a somewhat faster data structure might be nice, but
…		…
288	}	365	}
289		366
290	abort ();	367	abort ();
291	}	368	}
292		369
293	static int poll_cb (int max);	370	static int poll_cb ();
294	static void req_invoke (aio_req req);	371	static int req_invoke (aio_req req);
295	static void req_free (aio_req req);	372	static void req_destroy (aio_req req);
296	static void req_cancel (aio_req req);	373	static void req_cancel (aio_req req);
297		374
298	/* must be called at most once */	375	/* must be called at most once */
299	static SV *req_sv (aio_req req, const char *klass)	376	static SV *req_sv (aio_req req, const char *klass)
300	{	377	{
…		…
319	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
320	}	397	}
321		398
322	static void aio_grp_feed (aio_req grp)	399	static void aio_grp_feed (aio_req grp)
323	{	400	{
		401	block_sig ();
		402
324	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	403	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
325	{	404	{
326	int old_len = grp->length;	405	int old_len = grp->size;
327		406
328	if (grp->fh2 && SvOK (grp->fh2))	407	if (grp->sv2 && SvOK (grp->sv2))
329	{	408	{
330	dSP;	409	dSP;
331		410
332	ENTER;	411	ENTER;
333	SAVETMPS;	412	SAVETMPS;
334	PUSHMARK (SP);	413	PUSHMARK (SP);
335	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	414	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
336	PUTBACK;	415	PUTBACK;
337	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	416	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338	SPAGAIN;	417	SPAGAIN;
339	FREETMPS;	418	FREETMPS;
340	LEAVE;	419	LEAVE;
341	}	420	}
342		421
343	/* stop if no progress has been made */	422	/* stop if no progress has been made */
344	if (old_len == grp->length)	423	if (old_len == grp->size)
345	{	424	{
346	SvREFCNT_dec (grp->fh2);	425	SvREFCNT_dec (grp->sv2);
347	grp->fh2 = 0;	426	grp->sv2 = 0;
348	break;	427	break;
349	}	428	}
350	}	429	}
		430
		431	unblock_sig ();
351	}	432	}
352		433
353	static void aio_grp_dec (aio_req grp)	434	static void aio_grp_dec (aio_req grp)
354	{	435	{
355	--grp->length;	436	--grp->size;
356		437
357	/* call feeder, if applicable */	438	/* call feeder, if applicable */
358	aio_grp_feed (grp);	439	aio_grp_feed (grp);
359		440
360	/* finish, if done */	441	/* finish, if done */
361	if (!grp->length && grp->fd)	442	if (!grp->size && grp->int1)
362	{	443	{
		444	block_sig ();
		445
363	req_invoke (grp);	446	if (!req_invoke (grp))
		447	{
		448	req_destroy (grp);
		449	unblock_sig ();
		450	croak (0);
		451	}
		452
364	req_free (grp);	453	req_destroy (grp);
		454	unblock_sig ();
365	}	455	}
366	}	456	}
367		457
368	static void req_invoke (aio_req req)	458	static int req_invoke (aio_req req)
369	{	459	{
370	dSP;	460	dSP;
		461
		462	if (req->flags & FLAG_SV2_RO_OFF)
		463	SvREADONLY_off (req->sv2);
371		464
372	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	465	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
373	{	466	{
374	ENTER;	467	ENTER;
375	SAVETMPS;	468	SAVETMPS;
…		…
383	SV *rv = &PL_sv_undef;	476	SV *rv = &PL_sv_undef;
384		477
385	if (req->result >= 0)	478	if (req->result >= 0)
386	{	479	{
387	int i;	480	int i;
388	char *buf = req->data2ptr;	481	char *buf = req->ptr2;
389	AV *av = newAV ();	482	AV *av = newAV ();
390		483
391	av_extend (av, req->result - 1);	484	av_extend (av, req->result - 1);
392		485
393	for (i = 0; i < req->result; ++i)	486	for (i = 0; i < req->result; ++i)
…		…
413	PUSHs (sv_2mortal (newSViv (req->result)));	506	PUSHs (sv_2mortal (newSViv (req->result)));
414	PUTBACK;	507	PUTBACK;
415	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	508	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
416	SPAGAIN;	509	SPAGAIN;
417		510
418	fh = SvREFCNT_inc (POPs);	511	fh = POPs;
419
420	PUSHMARK (SP);	512	PUSHMARK (SP);
421	XPUSHs (sv_2mortal (fh));	513	XPUSHs (fh);
422	}	514	}
423	break;	515	break;
424		516
425	case REQ_GROUP:	517	case REQ_GROUP:
426	req->fd = 2; /* mark group as finished */	518	req->int1 = 2; /* mark group as finished */
427		519
428	if (req->data)	520	if (req->sv1)
429	{	521	{
430	int i;	522	int i;
431	AV *av = (AV *)req->data;	523	AV *av = (AV *)req->sv1;
432		524
433	EXTEND (SP, AvFILL (av) + 1);	525	EXTEND (SP, AvFILL (av) + 1);
434	for (i = 0; i <= AvFILL (av); ++i)	526	for (i = 0; i <= AvFILL (av); ++i)
435	PUSHs (*av_fetch (av, i, 0));	527	PUSHs (*av_fetch (av, i, 0));
436	}	528	}
…		…
438		530
439	case REQ_NOP:	531	case REQ_NOP:
440	case REQ_BUSY:	532	case REQ_BUSY:
441	break;	533	break;
442		534
		535	case REQ_READLINK:
		536	if (req->result > 0)
		537	{
		538	SvCUR_set (req->sv2, req->result);
		539	*SvEND (req->sv2) = 0;
		540	PUSHs (req->sv2);
		541	}
		542	break;
		543
		544	case REQ_STAT:
		545	case REQ_LSTAT:
		546	case REQ_FSTAT:
		547	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		548	PL_laststatval = req->result;
		549	PL_statcache = *(Stat_t *)(req->ptr2);
		550	PUSHs (sv_2mortal (newSViv (req->result)));
		551	break;
		552
		553	case REQ_READ:
		554	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		555	*SvEND (req->sv2) = 0;
		556	PUSHs (sv_2mortal (newSViv (req->result)));
		557	break;
		558
443	default:	559	default:
444	PUSHs (sv_2mortal (newSViv (req->result)));	560	PUSHs (sv_2mortal (newSViv (req->result)));
445	break;	561	break;
446	}	562	}
447		563
…		…
467	grp->grp_first = req->grp_next;	583	grp->grp_first = req->grp_next;
468		584
469	aio_grp_dec (grp);	585	aio_grp_dec (grp);
470	}	586	}
471		587
472	if (SvTRUE (ERRSV))	588	return !SvTRUE (ERRSV);
473	{
474	req_free (req);
475	croak (0);
476	}
477	}	589	}
478		590
479	static void req_free (aio_req req)	591	static void req_destroy (aio_req req)
480	{	592	{
481	if (req->self)	593	if (req->self)
482	{	594	{
483	sv_unmagic (req->self, PERL_MAGIC_ext);	595	sv_unmagic (req->self, PERL_MAGIC_ext);
484	SvREFCNT_dec (req->self);	596	SvREFCNT_dec (req->self);
485	}	597	}
486		598
487	SvREFCNT_dec (req->data);
488	SvREFCNT_dec (req->fh);	599	SvREFCNT_dec (req->sv1);
489	SvREFCNT_dec (req->fh2);	600	SvREFCNT_dec (req->sv2);
490	SvREFCNT_dec (req->callback);	601	SvREFCNT_dec (req->callback);
491	Safefree (req->statdata);
492		602
493	if (req->type == REQ_READDIR)	603	if (req->flags & FLAG_PTR2_FREE)
494	free (req->data2ptr);	604	free (req->ptr2);
495		605
496	Safefree (req);	606	Safefree (req);
497	}	607	}
498		608
499	static void req_cancel_subs (aio_req grp)	609	static void req_cancel_subs (aio_req grp)
…		…
501	aio_req sub;	611	aio_req sub;
502		612
503	if (grp->type != REQ_GROUP)	613	if (grp->type != REQ_GROUP)
504	return;	614	return;
505		615
506	SvREFCNT_dec (grp->fh2);	616	SvREFCNT_dec (grp->sv2);
507	grp->fh2 = 0;	617	grp->sv2 = 0;
508		618
509	for (sub = grp->grp_first; sub; sub = sub->grp_next)	619	for (sub = grp->grp_first; sub; sub = sub->grp_next)
510	req_cancel (sub);	620	req_cancel (sub);
511	}	621	}
512		622
…		…
515	req->flags |= FLAG_CANCELLED;	625	req->flags |= FLAG_CANCELLED;
516		626
517	req_cancel_subs (req);	627	req_cancel_subs (req);
518	}	628	}
519		629
520	static void *aio_proc(void *arg);	630	X_THREAD_PROC (aio_proc);
521		631
522	static void start_thread (void)	632	static void start_thread (void)
523	{	633	{
524	sigset_t fullsigset, oldsigset;
525	pthread_attr_t attr;
526
527	worker *wrk = calloc (1, sizeof (worker));	634	worker *wrk = calloc (1, sizeof (worker));
528		635
529	if (!wrk)	636	if (!wrk)
530	croak ("unable to allocate worker thread data");	637	croak ("unable to allocate worker thread data");
531		638
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);	639	X_LOCK (wrklock);
542	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543		640
544	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	641	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
545	{	642	{
546	wrk->prev = &wrk_first;	643	wrk->prev = &wrk_first;
547	wrk->next = wrk_first.next;	644	wrk->next = wrk_first.next;
548	wrk_first.next->prev = wrk;	645	wrk_first.next->prev = wrk;
549	wrk_first.next = wrk;	646	wrk_first.next = wrk;
550	++started;	647	++started;
551	}	648	}
552	else	649	else
553	free (wrk);	650	free (wrk);
554		651
555	sigprocmask (SIG_SETMASK, &oldsigset, 0);
556	UNLOCK (wrklock);	652	X_UNLOCK (wrklock);
557	}	653	}
558		654
559	static void maybe_start_thread ()	655	static void maybe_start_thread ()
560	{	656	{
561	#if 0	657	if (get_nthreads () >= wanted)
562	static struct timeval last;
563	struct timeval diff, now;
564	#endif
565
566	if (started >= wanted)
567	return;	658	return;
568		659
569	if (nready <= nreqs - get_nready () - get_npending ())	660	/* todo: maybe use idle here, but might be less exact */
		661	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
570	return;	662	return;
571		663
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 ();	664	start_thread ();
591	}	665	}
592		666
593	static void req_send (aio_req req)	667	static void req_send (aio_req req)
594	{	668	{
		669	block_sig ();
		670
595	++nreqs;	671	++nreqs;
596		672
597	LOCK (reqlock);	673	X_LOCK (reqlock);
598	++nready;	674	++nready;
599	reqq_push (&req_queue, req);	675	reqq_push (&req_queue, req);
600	pthread_cond_signal (&reqwait);	676	X_COND_SIGNAL (reqwait);
601	UNLOCK (reqlock);	677	X_UNLOCK (reqlock);
		678
		679	unblock_sig ();
602		680
603	maybe_start_thread ();	681	maybe_start_thread ();
604	}	682	}
605		683
606	static void end_thread (void)	684	static void end_thread (void)
…		…
610	Newz (0, req, 1, aio_cb);	688	Newz (0, req, 1, aio_cb);
611		689
612	req->type = REQ_QUIT;	690	req->type = REQ_QUIT;
613	req->pri = PRI_MAX + PRI_BIAS;	691	req->pri = PRI_MAX + PRI_BIAS;
614		692
615	LOCK (reqlock);	693	X_LOCK (reqlock);
616	reqq_push (&req_queue, req);	694	reqq_push (&req_queue, req);
617	pthread_cond_signal (&reqwait);	695	X_COND_SIGNAL (reqwait);
618	UNLOCK (reqlock);	696	X_UNLOCK (reqlock);
619		697
620	LOCK (wrklock);	698	X_LOCK (wrklock);
621	--started;	699	--started;
622	UNLOCK (wrklock);	700	X_UNLOCK (wrklock);
		701	}
		702
		703	static void set_max_idle (int nthreads)
		704	{
		705	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		706	max_idle = nthreads <= 0 ? 1 : nthreads;
		707	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
623	}	708	}
624		709
625	static void min_parallel (int nthreads)	710	static void min_parallel (int nthreads)
626	{	711	{
627	if (wanted < nthreads)	712	if (wanted < nthreads)
…		…
642	fd_set rfd;	727	fd_set rfd;
643		728
644	while (nreqs)	729	while (nreqs)
645	{	730	{
646	int size;	731	int size;
647	if (WORDREAD_UNSAFE) LOCK (reslock);	732	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
648	size = res_queue.size;	733	size = res_queue.size;
649	if (WORDREAD_UNSAFE) UNLOCK (reslock);	734	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
650		735
651	if (size)	736	if (size)
652	return;	737	return;
653		738
654	maybe_start_thread ();	739	maybe_start_thread ();
…		…
658		743
659	select (respipe [0] + 1, &rfd, 0, 0, 0);	744	select (respipe [0] + 1, &rfd, 0, 0, 0);
660	}	745	}
661	}	746	}
662		747
663	static int poll_cb (int max)	748	static int poll_cb ()
664	{	749	{
665	dSP;	750	dSP;
666	int count = 0;	751	int count = 0;
		752	int maxreqs = max_poll_reqs;
667	int do_croak = 0;	753	int do_croak = 0;
		754	struct timeval tv_start, tv_now;
668	aio_req req;	755	aio_req req;
		756
		757	if (max_poll_time)
		758	gettimeofday (&tv_start, 0);
		759
		760	block_sig ();
669		761
670	for (;;)	762	for (;;)
671	{	763	{
672	while (max <= 0 || count < max)	764	for (;;)
673	{	765	{
674	maybe_start_thread ();	766	maybe_start_thread ();
675		767
676	LOCK (reslock);	768	X_LOCK (reslock);
677	req = reqq_shift (&res_queue);	769	req = reqq_shift (&res_queue);
678		770
679	if (req)	771	if (req)
680	{	772	{
681	--npending;	773	--npending;
682		774
683	if (!res_queue.size)	775	if (!res_queue.size)
684	{	776	{
685	/* read any signals sent by the worker threads */	777	/* read any signals sent by the worker threads */
686	char buf [32];	778	char buf [4];
687	while (read (respipe [0], buf, 32) == 32)	779	while (read (respipe [0], buf, 4) == 4)
688	;	780	;
689	}	781	}
690	}	782	}
691		783
692	UNLOCK (reslock);	784	X_UNLOCK (reslock);
693		785
694	if (!req)	786	if (!req)
695	break;	787	break;
696		788
697	--nreqs;	789	--nreqs;
698		790
699	if (req->type == REQ_GROUP && req->length)	791	if (req->type == REQ_GROUP && req->size)
700	{	792	{
701	req->fd = 1; /* mark request as delayed */	793	req->int1 = 1; /* mark request as delayed */
702	continue;	794	continue;
703	}	795	}
704	else	796	else
705	{	797	{
706	if (req->type == REQ_READ)	798	if (!req_invoke (req))
707	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
708
709	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
710	SvREADONLY_off (req->data);
711
712	if (req->statdata)
713	{	799	{
714	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	800	req_destroy (req);
715	PL_laststatval = req->result;	801	unblock_sig ();
716	PL_statcache = *(req->statdata);	802	croak (0);
717	}	803	}
718
719	req_invoke (req);
720		804
721	count++;	805	count++;
722	}	806	}
723		807
724	req_free (req);	808	req_destroy (req);
		809
		810	if (maxreqs && !--maxreqs)
		811	break;
		812
		813	if (max_poll_time)
		814	{
		815	gettimeofday (&tv_now, 0);
		816
		817	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		818	break;
		819	}
725	}	820	}
726		821
727	if (nreqs <= max_outstanding)	822	if (nreqs <= max_outstanding)
728	break;	823	break;
729		824
730	poll_wait ();	825	poll_wait ();
731		826
732	max = 0;	827	++maxreqs;
733	}	828	}
734		829
		830	unblock_sig ();
735	return count;	831	return count;
736	}
737
738	static void create_pipe ()
739	{
740	if (pipe (respipe))
741	croak ("unable to initialize result pipe");
742
743	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
744	croak ("cannot set result pipe to nonblocking mode");
745
746	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
747	croak ("cannot set result pipe to nonblocking mode");
748	}	832	}
749		833
750	/*****************************************************************************/	834	/*****************************************************************************/
751	/* work around various missing functions */	835	/* work around various missing functions */
752		836
…		…
757	/*	841	/*
758	* make our pread/pwrite safe against themselves, but not against	842	* make our pread/pwrite safe against themselves, but not against
759	* normal read/write by using a mutex. slows down execution a lot,	843	* normal read/write by using a mutex. slows down execution a lot,
760	* but that's your problem, not mine.	844	* but that's your problem, not mine.
761	*/	845	*/
762	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	846	static mutex_t preadwritelock = X_MUTEX_INIT;
763		847
764	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	848	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
765	{	849	{
766	ssize_t res;	850	ssize_t res;
767	off_t ooffset;	851	off_t ooffset;
768		852
769	LOCK (preadwritelock);	853	X_LOCK (preadwritelock);
770	ooffset = lseek (fd, 0, SEEK_CUR);	854	ooffset = lseek (fd, 0, SEEK_CUR);
771	lseek (fd, offset, SEEK_SET);	855	lseek (fd, offset, SEEK_SET);
772	res = read (fd, buf, count);	856	res = read (fd, buf, count);
773	lseek (fd, ooffset, SEEK_SET);	857	lseek (fd, ooffset, SEEK_SET);
774	UNLOCK (preadwritelock);	858	X_UNLOCK (preadwritelock);
775		859
776	return res;	860	return res;
777	}	861	}
778		862
779	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	863	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
780	{	864	{
781	ssize_t res;	865	ssize_t res;
782	off_t ooffset;	866	off_t ooffset;
783		867
784	LOCK (preadwritelock);	868	X_LOCK (preadwritelock);
785	ooffset = lseek (fd, 0, SEEK_CUR);	869	ooffset = lseek (fd, 0, SEEK_CUR);
786	lseek (fd, offset, SEEK_SET);	870	lseek (fd, offset, SEEK_SET);
787	res = write (fd, buf, count);	871	res = write (fd, buf, count);
788	lseek (fd, offset, SEEK_SET);	872	lseek (fd, offset, SEEK_SET);
789	UNLOCK (preadwritelock);	873	X_UNLOCK (preadwritelock);
790		874
791	return res;	875	return res;
792	}	876	}
		877	#endif
		878
		879	#ifndef HAVE_FUTIMES
		880
		881	# define utimes(path,times) aio_utimes (path, times)
		882	# define futimes(fd,times) aio_futimes (fd, times)
		883
		884	int aio_utimes (const char *filename, const struct timeval times[2])
		885	{
		886	if (times)
		887	{
		888	struct utimbuf buf;
		889
		890	buf.actime = times[0].tv_sec;
		891	buf.modtime = times[1].tv_sec;
		892
		893	return utime (filename, &buf);
		894	}
		895	else
		896	return utime (filename, 0);
		897	}
		898
		899	int aio_futimes (int fd, const struct timeval tv[2])
		900	{
		901	errno = ENOSYS;
		902	return -1;
		903	}
		904
793	#endif	905	#endif
794		906
795	#if !HAVE_FDATASYNC	907	#if !HAVE_FDATASYNC
796	# define fdatasync fsync	908	# define fdatasync fsync
797	#endif	909	#endif
…		…
799	#if !HAVE_READAHEAD	911	#if !HAVE_READAHEAD
800	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	912	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
801		913
802	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	914	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
803	{	915	{
		916	size_t todo = count;
804	dBUF;	917	dBUF;
805		918
806	while (count > 0)	919	while (todo > 0)
807	{	920	{
808	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	921	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
809		922
810	pread (fd, aio_buf, len, offset);	923	pread (fd, aio_buf, len, offset);
811	offset += len;	924	offset += len;
812	count -= len;	925	todo -= len;
813	}	926	}
814		927
815	errno = 0;	928	errno = 0;
		929	return count;
816	}	930	}
817		931
818	#endif	932	#endif
819		933
820	#if !HAVE_READDIR_R	934	#if !HAVE_READDIR_R
821	# define readdir_r aio_readdir_r	935	# define readdir_r aio_readdir_r
822		936
823	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	937	static mutex_t readdirlock = X_MUTEX_INIT;
824		938
825	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	939	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
826	{	940	{
827	struct dirent *e;	941	X_DIRENT *e;
828	int errorno;	942	int errorno;
829		943
830	LOCK (readdirlock);	944	X_LOCK (readdirlock);
831		945
832	e = readdir (dirp);	946	e = readdir (dirp);
833	errorno = errno;	947	errorno = errno;
834		948
835	if (e)	949	if (e)
…		…
838	strcpy (ent->d_name, e->d_name);	952	strcpy (ent->d_name, e->d_name);
839	}	953	}
840	else	954	else
841	*res = 0;	955	*res = 0;
842		956
843	UNLOCK (readdirlock);	957	X_UNLOCK (readdirlock);
844		958
845	errno = errorno;	959	errno = errorno;
846	return e ? 0 : -1;	960	return e ? 0 : -1;
847	}	961	}
848	#endif	962	#endif
…		…
944	static void scandir_ (aio_req req, worker *self)	1058	static void scandir_ (aio_req req, worker *self)
945	{	1059	{
946	DIR *dirp;	1060	DIR *dirp;
947	union	1061	union
948	{	1062	{
949	struct dirent d;	1063	X_DIRENT d;
950	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1064	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
951	} *u;	1065	} *u;
952	struct dirent *entp;	1066	X_DIRENT *entp;
953	char *name, *names;	1067	char *name, *names;
954	int memlen = 4096;	1068	int memlen = 4096;
955	int memofs = 0;	1069	int memofs = 0;
956	int res = 0;	1070	int res = 0;
957	int errorno;
958		1071
959	LOCK (wrklock);	1072	X_LOCK (wrklock);
960	self->dirp = dirp = opendir (req->dataptr);	1073	self->dirp = dirp = opendir (req->ptr1);
961	self->dbuf = u = malloc (sizeof (*u));	1074	self->dbuf = u = malloc (sizeof (*u));
		1075	req->flags |= FLAG_PTR2_FREE;
962	req->data2ptr = names = malloc (memlen);	1076	req->ptr2 = names = malloc (memlen);
963	UNLOCK (wrklock);	1077	X_UNLOCK (wrklock);
964		1078
965	if (dirp && u && names)	1079	if (dirp && u && names)
966	for (;;)	1080	for (;;)
967	{	1081	{
968	errno = 0;	1082	errno = 0;
…		…
980	res++;	1094	res++;
981		1095
982	while (memofs + len > memlen)	1096	while (memofs + len > memlen)
983	{	1097	{
984	memlen *= 2;	1098	memlen *= 2;
985	LOCK (wrklock);	1099	X_LOCK (wrklock);
986	req->data2ptr = names = realloc (names, memlen);	1100	req->ptr2 = names = realloc (names, memlen);
987	UNLOCK (wrklock);	1101	X_UNLOCK (wrklock);
988		1102
989	if (!names)	1103	if (!names)
990	break;	1104	break;
991	}	1105	}
992		1106
…		…
1001	req->result = res;	1115	req->result = res;
1002	}	1116	}
1003		1117
1004	/*****************************************************************************/	1118	/*****************************************************************************/
1005		1119
1006	static void *aio_proc (void *thr_arg)	1120	X_THREAD_PROC (aio_proc)
1007	{	1121	{
		1122	{//D
1008	aio_req req;	1123	aio_req req;
		1124	struct timespec ts;
1009	worker *self = (worker *)thr_arg;	1125	worker *self = (worker *)thr_arg;
		1126
		1127	/* try to distribute timeouts somewhat randomly */
		1128	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1010		1129
1011	for (;;)	1130	for (;;)
1012	{	1131	{
		1132	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1133
1013	LOCK (reqlock);	1134	X_LOCK (reqlock);
1014		1135
1015	for (;;)	1136	for (;;)
1016	{	1137	{
1017	self->req = req = reqq_shift (&req_queue);	1138	self->req = req = reqq_shift (&req_queue);
1018		1139
1019	if (req)	1140	if (req)
1020	break;	1141	break;
1021		1142
1022	pthread_cond_wait (&reqwait, &reqlock);	1143	++idle;
		1144
		1145	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1146	== ETIMEDOUT)
		1147	{
		1148	if (idle > max_idle)
		1149	{
		1150	--idle;
		1151	X_UNLOCK (reqlock);
		1152	X_LOCK (wrklock);
		1153	--started;
		1154	X_UNLOCK (wrklock);
		1155	goto quit;
		1156	}
		1157
		1158	/* we are allowed to idle, so do so without any timeout */
		1159	X_COND_WAIT (reqwait, reqlock);
		1160	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1161	}
		1162
		1163	--idle;
1023	}	1164	}
1024		1165
1025	--nready;	1166	--nready;
1026		1167
1027	UNLOCK (reqlock);	1168	X_UNLOCK (reqlock);
1028		1169
1029	errno = 0; /* strictly unnecessary */	1170	errno = 0; /* strictly unnecessary */
1030		1171
1031	if (!(req->flags & FLAG_CANCELLED))	1172	if (!(req->flags & FLAG_CANCELLED))
1032	switch (req->type)	1173	switch (req->type)
1033	{	1174	{
1034	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1175	case REQ_READ: req->result = req->offs >= 0
1035	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1176	? pread (req->int1, req->ptr1, req->size, req->offs)
		1177	: read (req->int1, req->ptr1, req->size); break;
		1178	case REQ_WRITE: req->result = req->offs >= 0
		1179	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1180	: write (req->int1, req->ptr1, req->size); break;
1036		1181
1037	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1182	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1038	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1183	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1039		1184
1040	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1185	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1041	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1186	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1042	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1187	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1043		1188
		1189	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1190	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1191	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1192	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1193	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1194	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1195
1044	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1196	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1045	case REQ_CLOSE: req->result = close (req->fd); break;	1197	case REQ_CLOSE: req->result = close (req->int1); break;
1046	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1198	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1047	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1199	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1200	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1048	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1201	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1049	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1202	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1050	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1203	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1051	case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;	1204	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1205	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1052		1206
1053	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1207	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1054	case REQ_FSYNC: req->result = fsync (req->fd); break;	1208	case REQ_FSYNC: req->result = fsync (req->int1); break;
1055	case REQ_READDIR: scandir_ (req, self); break;	1209	case REQ_READDIR: scandir_ (req, self); break;
1056		1210
1057	case REQ_BUSY:	1211	case REQ_BUSY:
		1212	#ifdef _WIN32
		1213	Sleep (req->nv1 * 1000.);
		1214	#else
1058	{	1215	{
1059	struct timeval tv;	1216	struct timeval tv;
1060		1217
1061	tv.tv_sec = req->fd;	1218	tv.tv_sec = req->nv1;
1062	tv.tv_usec = req->fd2;	1219	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1063		1220
1064	req->result = select (0, 0, 0, 0, &tv);	1221	req->result = select (0, 0, 0, 0, &tv);
		1222	}
		1223	#endif
		1224	break;
		1225
		1226	case REQ_UTIME:
		1227	case REQ_FUTIME:
		1228	{
		1229	struct timeval tv[2];
		1230	struct timeval *times;
		1231
		1232	if (req->nv1 != -1. || req->nv2 != -1.)
		1233	{
		1234	tv[0].tv_sec = req->nv1;
		1235	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1236	tv[1].tv_sec = req->nv2;
		1237	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1238
		1239	times = tv;
		1240	}
		1241	else
		1242	times = 0;
		1243
		1244
		1245	req->result = req->type == REQ_FUTIME
		1246	? futimes (req->int1, times)
		1247	: utimes (req->ptr1, times);
1065	}	1248	}
1066		1249
1067	case REQ_GROUP:	1250	case REQ_GROUP:
1068	case REQ_NOP:	1251	case REQ_NOP:
1069	break;	1252	break;
1070		1253
1071	case REQ_QUIT:	1254	case REQ_QUIT:
1072	LOCK (wrklock);	1255	goto quit;
1073	worker_free (self);
1074	--started;
1075	UNLOCK (wrklock);
1076	return 0;
1077		1256
1078	default:	1257	default:
1079	req->result = ENOSYS;	1258	req->result = -1;
1080	break;	1259	break;
1081	}	1260	}
1082		1261
1083	req->errorno = errno;	1262	req->errorno = errno;
1084		1263
1085	LOCK (reslock);	1264	X_LOCK (reslock);
1086		1265
1087	++npending;	1266	++npending;
1088		1267
1089	if (!reqq_push (&res_queue, req))	1268	if (!reqq_push (&res_queue, req))
		1269	{
1090	/* write a dummy byte to the pipe so fh becomes ready */	1270	/* write a dummy byte to the pipe so fh becomes ready */
1091	write (respipe [1], &respipe, 1);	1271	write (respipe [1], &respipe, 1);
		1272
		1273	/* optionally signal the main thread asynchronously */
		1274	if (main_sig)
		1275	pthread_kill (main_tid, main_sig);
		1276	}
1092		1277
1093	self->req = 0;	1278	self->req = 0;
1094	worker_clear (self);	1279	worker_clear (self);
1095		1280
1096	UNLOCK (reslock);	1281	X_UNLOCK (reslock);
1097	}	1282	}
		1283
		1284	quit:
		1285	X_LOCK (wrklock);
		1286	worker_free (self);
		1287	X_UNLOCK (wrklock);
		1288
		1289	return 0;
		1290	}//D
1098	}	1291	}
1099		1292
1100	/*****************************************************************************/	1293	/*****************************************************************************/
1101		1294
1102	static void atfork_prepare (void)	1295	static void atfork_prepare (void)
1103	{	1296	{
1104	LOCK (wrklock);	1297	X_LOCK (wrklock);
1105	LOCK (reqlock);	1298	X_LOCK (reqlock);
1106	LOCK (reslock);	1299	X_LOCK (reslock);
1107	#if !HAVE_PREADWRITE	1300	#if !HAVE_PREADWRITE
1108	LOCK (preadwritelock);	1301	X_LOCK (preadwritelock);
1109	#endif	1302	#endif
1110	#if !HAVE_READDIR_R	1303	#if !HAVE_READDIR_R
1111	LOCK (readdirlock);	1304	X_LOCK (readdirlock);
1112	#endif	1305	#endif
1113	}	1306	}
1114		1307
1115	static void atfork_parent (void)	1308	static void atfork_parent (void)
1116	{	1309	{
1117	#if !HAVE_READDIR_R	1310	#if !HAVE_READDIR_R
1118	UNLOCK (readdirlock);	1311	X_UNLOCK (readdirlock);
1119	#endif	1312	#endif
1120	#if !HAVE_PREADWRITE	1313	#if !HAVE_PREADWRITE
1121	UNLOCK (preadwritelock);	1314	X_UNLOCK (preadwritelock);
1122	#endif	1315	#endif
1123	UNLOCK (reslock);	1316	X_UNLOCK (reslock);
1124	UNLOCK (reqlock);	1317	X_UNLOCK (reqlock);
1125	UNLOCK (wrklock);	1318	X_UNLOCK (wrklock);
1126	}	1319	}
1127		1320
1128	static void atfork_child (void)	1321	static void atfork_child (void)
1129	{	1322	{
1130	aio_req prv;	1323	aio_req prv;
1131		1324
1132	while (prv = reqq_shift (&req_queue))	1325	while (prv = reqq_shift (&req_queue))
1133	req_free (prv);	1326	req_destroy (prv);
1134		1327
1135	while (prv = reqq_shift (&res_queue))	1328	while (prv = reqq_shift (&res_queue))
1136	req_free (prv);	1329	req_destroy (prv);
1137		1330
1138	while (wrk_first.next != &wrk_first)	1331	while (wrk_first.next != &wrk_first)
1139	{	1332	{
1140	worker *wrk = wrk_first.next;	1333	worker *wrk = wrk_first.next;
1141		1334
1142	if (wrk->req)	1335	if (wrk->req)
1143	req_free (wrk->req);	1336	req_destroy (wrk->req);
1144		1337
1145	worker_clear (wrk);	1338	worker_clear (wrk);
1146	worker_free (wrk);	1339	worker_free (wrk);
1147	}	1340	}
1148		1341
1149	started = 0;	1342	started = 0;
		1343	idle = 0;
1150	nreqs = 0;	1344	nreqs = 0;
		1345	nready = 0;
		1346	npending = 0;
1151		1347
1152	close (respipe [0]);	1348	close (respipe [0]);
1153	close (respipe [1]);	1349	close (respipe [1]);
1154	create_pipe ();	1350
		1351	if (!create_pipe (respipe))
		1352	croak ("cannot set result pipe to nonblocking mode");
1155		1353
1156	atfork_parent ();	1354	atfork_parent ();
1157	}	1355	}
1158		1356
1159	#define dREQ \	1357	#define dREQ \
…		…
1188	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1386	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1189	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1387	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1190	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1388	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1191	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1389	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1192	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1390	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1391	#ifdef _WIN32
		1392	X_MUTEX_CHECK (wrklock);
		1393	X_MUTEX_CHECK (reslock);
		1394	X_MUTEX_CHECK (reqlock);
		1395	X_MUTEX_CHECK (reqwait);
		1396	X_MUTEX_CHECK (preadwritelock);
		1397	X_MUTEX_CHECK (readdirlock);
		1398	#else
1193	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1399	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1400	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1401	#endif
1194		1402
1195	create_pipe ();	1403	if (!create_pipe (respipe))
		1404	croak ("cannot set result pipe to nonblocking mode");
		1405
1196	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1406	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1197
1198	start_thread ();
1199	}	1407	}
		1408
		1409	void
		1410	max_poll_reqs (int nreqs)
		1411	PROTOTYPE: $
		1412	CODE:
		1413	max_poll_reqs = nreqs;
		1414
		1415	void
		1416	max_poll_time (double nseconds)
		1417	PROTOTYPE: $
		1418	CODE:
		1419	max_poll_time = nseconds * AIO_TICKS;
1200		1420
1201	void	1421	void
1202	min_parallel (int nthreads)	1422	min_parallel (int nthreads)
1203	PROTOTYPE: $	1423	PROTOTYPE: $
1204		1424
1205	void	1425	void
1206	max_parallel (int nthreads)	1426	max_parallel (int nthreads)
1207	PROTOTYPE: $	1427	PROTOTYPE: $
		1428
		1429	void
		1430	max_idle (int nthreads)
		1431	PROTOTYPE: $
		1432	CODE:
		1433	set_max_idle (nthreads);
1208		1434
1209	int	1435	int
1210	max_outstanding (int maxreqs)	1436	max_outstanding (int maxreqs)
1211	PROTOTYPE: $	1437	PROTOTYPE: $
1212	CODE:	1438	CODE:
…		…
1214	max_outstanding = maxreqs;	1440	max_outstanding = maxreqs;
1215	OUTPUT:	1441	OUTPUT:
1216	RETVAL	1442	RETVAL
1217		1443
1218	void	1444	void
1219	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1445	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1220	SV * pathname
1221	int flags
1222	int mode
1223	SV * callback
1224	PROTOTYPE: $$$;$	1446	PROTOTYPE: $$$;$
1225	PPCODE:	1447	PPCODE:
1226	{	1448	{
1227	dREQ;	1449	dREQ;
1228		1450
1229	req->type = REQ_OPEN;	1451	req->type = REQ_OPEN;
1230	req->data = newSVsv (pathname);	1452	req->sv1 = newSVsv (pathname);
1231	req->dataptr = SvPVbyte_nolen (req->data);	1453	req->ptr1 = SvPVbyte_nolen (req->sv1);
1232	req->fd = flags;	1454	req->int1 = flags;
1233	req->mode = mode;	1455	req->mode = mode;
1234		1456
1235	REQ_SEND;	1457	REQ_SEND;
1236	}	1458	}
1237		1459
1238	void	1460	void
1239	aio_close (fh,callback=&PL_sv_undef)	1461	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1240	SV * fh
1241	SV * callback
1242	PROTOTYPE: $;$	1462	PROTOTYPE: $;$
1243	ALIAS:	1463	ALIAS:
1244	aio_close = REQ_CLOSE	1464	aio_close = REQ_CLOSE
1245	aio_fsync = REQ_FSYNC	1465	aio_fsync = REQ_FSYNC
1246	aio_fdatasync = REQ_FDATASYNC	1466	aio_fdatasync = REQ_FDATASYNC
1247	PPCODE:	1467	PPCODE:
1248	{	1468	{
1249	dREQ;	1469	dREQ;
1250		1470
1251	req->type = ix;	1471	req->type = ix;
1252	req->fh = newSVsv (fh);	1472	req->sv1 = newSVsv (fh);
1253	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1473	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1254		1474
1255	REQ_SEND (req);	1475	REQ_SEND (req);
1256	}	1476	}
1257		1477
1258	void	1478	void
1259	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1260	SV * fh
1261	UV offset
1262	UV length
1263	SV * data
1264	UV dataoffset
1265	SV * callback
1266	ALIAS:	1480	ALIAS:
1267	aio_read = REQ_READ	1481	aio_read = REQ_READ
1268	aio_write = REQ_WRITE	1482	aio_write = REQ_WRITE
1269	PROTOTYPE: $$$$$;$	1483	PROTOTYPE: $$$$$;$
1270	PPCODE:	1484	PPCODE:
1271	{	1485	{
1272	aio_req req;
1273	STRLEN svlen;	1486	STRLEN svlen;
1274	char *svptr = SvPVbyte (data, svlen);	1487	char *svptr = SvPVbyte (data, svlen);
		1488	UV len = SvUV (length);
1275		1489
1276	SvUPGRADE (data, SVt_PV);	1490	SvUPGRADE (data, SVt_PV);
1277	SvPOK_on (data);	1491	SvPOK_on (data);
1278		1492
1279	if (dataoffset < 0)	1493	if (dataoffset < 0)
1280	dataoffset += svlen;	1494	dataoffset += svlen;
1281		1495
1282	if (dataoffset < 0 || dataoffset > svlen)	1496	if (dataoffset < 0 || dataoffset > svlen)
1283	croak ("data offset outside of string");	1497	croak ("dataoffset outside of data scalar");
1284		1498
1285	if (ix == REQ_WRITE)	1499	if (ix == REQ_WRITE)
1286	{	1500	{
1287	/* write: check length and adjust. */	1501	/* write: check length and adjust. */
1288	if (length < 0 || length + dataoffset > svlen)	1502	if (!SvOK (length) || len + dataoffset > svlen)
1289	length = svlen - dataoffset;	1503	len = svlen - dataoffset;
1290	}	1504	}
1291	else	1505	else
1292	{	1506	{
1293	/* read: grow scalar as necessary */	1507	/* read: grow scalar as necessary */
1294	svptr = SvGROW (data, length + dataoffset);	1508	svptr = SvGROW (data, len + dataoffset + 1);
1295	}	1509	}
1296		1510
1297	if (length < 0)	1511	if (len < 0)
1298	croak ("length must not be negative");	1512	croak ("length must not be negative");
1299		1513
1300	{	1514	{
1301	dREQ;	1515	dREQ;
1302		1516
1303	req->type = ix;	1517	req->type = ix;
1304	req->fh = newSVsv (fh);	1518	req->sv1 = newSVsv (fh);
1305	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1519	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1306	: IoOFP (sv_2io (fh)));	1520	: IoOFP (sv_2io (fh)));
		1521	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1307	req->offset = offset;	1522	req->size = len;
1308	req->length = length;
1309	req->data = SvREFCNT_inc (data);	1523	req->sv2 = SvREFCNT_inc (data);
1310	req->dataptr = (char *)svptr + dataoffset;	1524	req->ptr1 = (char *)svptr + dataoffset;
		1525	req->stroffset = dataoffset;
1311		1526
1312	if (!SvREADONLY (data))	1527	if (!SvREADONLY (data))
1313	{	1528	{
1314	SvREADONLY_on (data);	1529	SvREADONLY_on (data);
1315	req->data2ptr = (void *)data;	1530	req->flags |= FLAG_SV2_RO_OFF;
1316	}	1531	}
1317		1532
1318	REQ_SEND;	1533	REQ_SEND;
1319	}	1534	}
1320	}	1535	}
1321		1536
1322	void	1537	void
		1538	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1539	PROTOTYPE: $$;$
		1540	PPCODE:
		1541	{
		1542	SV *data;
		1543	dREQ;
		1544
		1545	data = newSV (NAME_MAX);
		1546	SvPOK_on (data);
		1547
		1548	req->type = REQ_READLINK;
		1549	req->sv1 = newSVsv (path);
		1550	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1551	req->sv2 = data;
		1552	req->ptr1 = SvPVbyte_nolen (data);
		1553
		1554	REQ_SEND;
		1555	}
		1556
		1557	void
1323	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1558	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1324	SV * out_fh
1325	SV * in_fh
1326	UV in_offset
1327	UV length
1328	SV * callback
1329	PROTOTYPE: $$$$;$	1559	PROTOTYPE: $$$$;$
1330	PPCODE:	1560	PPCODE:
1331	{	1561	{
1332	dREQ;	1562	dREQ;
1333		1563
1334	req->type = REQ_SENDFILE;	1564	req->type = REQ_SENDFILE;
1335	req->fh = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1336	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1337	req->fh2 = newSVsv (in_fh);	1567	req->sv2 = newSVsv (in_fh);
1338	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1568	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1339	req->offset = in_offset;	1569	req->offs = SvVAL64 (in_offset);
1340	req->length = length;	1570	req->size = length;
1341		1571
1342	REQ_SEND;	1572	REQ_SEND;
1343	}	1573	}
1344		1574
1345	void	1575	void
1346	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1347	SV * fh
1348	UV offset
1349	IV length
1350	SV * callback
1351	PROTOTYPE: $$$;$	1577	PROTOTYPE: $$$;$
1352	PPCODE:	1578	PPCODE:
1353	{	1579	{
1354	dREQ;	1580	dREQ;
1355		1581
1356	req->type = REQ_READAHEAD;	1582	req->type = REQ_READAHEAD;
1357	req->fh = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1358	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1584	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1359	req->offset = offset;	1585	req->offs = SvVAL64 (offset);
1360	req->length = length;	1586	req->size = length;
1361		1587
1362	REQ_SEND;	1588	REQ_SEND;
1363	}	1589	}
1364		1590
1365	void	1591	void
1366	aio_stat (fh_or_path,callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1367	SV * fh_or_path
1368	SV * callback
1369	ALIAS:	1593	ALIAS:
1370	aio_stat = REQ_STAT	1594	aio_stat = REQ_STAT
1371	aio_lstat = REQ_LSTAT	1595	aio_lstat = REQ_LSTAT
1372	PPCODE:	1596	PPCODE:
1373	{	1597	{
1374	dREQ;	1598	dREQ;
1375		1599
1376	New (0, req->statdata, 1, Stat_t);	1600	req->ptr2 = malloc (sizeof (Stat_t));
1377	if (!req->statdata)	1601	if (!req->ptr2)
1378	{	1602	{
1379	req_free (req);	1603	req_destroy (req);
1380	croak ("out of memory during aio_req->statdata allocation");	1604	croak ("out of memory during aio_stat statdata allocation");
1381	}	1605	}
		1606
		1607	req->flags |= FLAG_PTR2_FREE;
		1608	req->sv1 = newSVsv (fh_or_path);
1382		1609
1383	if (SvPOK (fh_or_path))	1610	if (SvPOK (fh_or_path))
1384	{	1611	{
1385	req->type = ix;	1612	req->type = ix;
1386	req->data = newSVsv (fh_or_path);
1387	req->dataptr = SvPVbyte_nolen (req->data);	1613	req->ptr1 = SvPVbyte_nolen (req->sv1);
1388	}	1614	}
1389	else	1615	else
1390	{	1616	{
1391	req->type = REQ_FSTAT;	1617	req->type = REQ_FSTAT;
1392	req->fh = newSVsv (fh_or_path);
1393	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1618	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1394	}	1619	}
1395		1620
1396	REQ_SEND;	1621	REQ_SEND;
1397	}	1622	}
1398		1623
1399	void	1624	void
		1625	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1626	PPCODE:
		1627	{
		1628	dREQ;
		1629
		1630	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1631	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1632	req->sv1 = newSVsv (fh_or_path);
		1633
		1634	if (SvPOK (fh_or_path))
		1635	{
		1636	req->type = REQ_UTIME;
		1637	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1638	}
		1639	else
		1640	{
		1641	req->type = REQ_FUTIME;
		1642	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1643	}
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
		1649	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1650	PPCODE:
		1651	{
		1652	dREQ;
		1653
		1654	req->sv1 = newSVsv (fh_or_path);
		1655	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1656
		1657	if (SvPOK (fh_or_path))
		1658	{
		1659	req->type = REQ_TRUNCATE;
		1660	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1661	}
		1662	else
		1663	{
		1664	req->type = REQ_FTRUNCATE;
		1665	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1666	}
		1667
		1668	REQ_SEND;
		1669	}
		1670
		1671	void
		1672	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1673	PPCODE:
		1674	{
		1675	dREQ;
		1676
		1677	req->mode = mode;
		1678	req->sv1 = newSVsv (fh_or_path);
		1679
		1680	if (SvPOK (fh_or_path))
		1681	{
		1682	req->type = REQ_CHMOD;
		1683	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1684	}
		1685	else
		1686	{
		1687	req->type = REQ_FCHMOD;
		1688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1689	}
		1690
		1691	REQ_SEND;
		1692	}
		1693
		1694	void
		1695	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1696	PPCODE:
		1697	{
		1698	dREQ;
		1699
		1700	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1701	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1702	req->sv1 = newSVsv (fh_or_path);
		1703
		1704	if (SvPOK (fh_or_path))
		1705	{
		1706	req->type = REQ_CHOWN;
		1707	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1708	}
		1709	else
		1710	{
		1711	req->type = REQ_FCHOWN;
		1712	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1713	}
		1714
		1715	REQ_SEND;
		1716	}
		1717
		1718	void
1400	aio_unlink (pathname,callback=&PL_sv_undef)	1719	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1401	SV * pathname
1402	SV * callback
1403	ALIAS:	1720	ALIAS:
1404	aio_unlink = REQ_UNLINK	1721	aio_unlink = REQ_UNLINK
1405	aio_rmdir = REQ_RMDIR	1722	aio_rmdir = REQ_RMDIR
1406	aio_readdir = REQ_READDIR	1723	aio_readdir = REQ_READDIR
1407	PPCODE:	1724	PPCODE:
1408	{	1725	{
1409	dREQ;	1726	dREQ;
1410		1727
1411	req->type = ix;	1728	req->type = ix;
1412	req->data = newSVsv (pathname);	1729	req->sv1 = newSVsv (pathname);
1413	req->dataptr = SvPVbyte_nolen (req->data);	1730	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1731
		1732	REQ_SEND;
		1733	}
		1734
		1735	void
		1736	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1737	PPCODE:
		1738	{
		1739	dREQ;
1414		1740
		1741	req->type = REQ_MKDIR;
		1742	req->sv1 = newSVsv (pathname);
		1743	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1744	req->mode = mode;
		1745
1415	REQ_SEND;	1746	REQ_SEND;
1416	}	1747	}
1417		1748
1418	void	1749	void
1419	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1750	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1420	SV * oldpath
1421	SV * newpath
1422	SV * callback
1423	ALIAS:	1751	ALIAS:
1424	aio_link = REQ_LINK	1752	aio_link = REQ_LINK
1425	aio_symlink = REQ_SYMLINK	1753	aio_symlink = REQ_SYMLINK
1426	aio_rename = REQ_RENAME	1754	aio_rename = REQ_RENAME
1427	PPCODE:	1755	PPCODE:
1428	{	1756	{
1429	dREQ;	1757	dREQ;
1430		1758
1431	req->type = ix;	1759	req->type = ix;
1432	req->fh = newSVsv (oldpath);	1760	req->sv2 = newSVsv (oldpath);
1433	req->data2ptr = SvPVbyte_nolen (req->fh);	1761	req->ptr2 = SvPVbyte_nolen (req->sv2);
1434	req->data = newSVsv (newpath);	1762	req->sv1 = newSVsv (newpath);
1435	req->dataptr = SvPVbyte_nolen (req->data);	1763	req->ptr1 = SvPVbyte_nolen (req->sv1);
1436		1764
1437	REQ_SEND;	1765	REQ_SEND;
1438	}	1766	}
1439		1767
1440	void	1768	void
1441	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1769	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1442	SV * pathname
1443	SV * callback
1444	UV mode
1445	UV dev
1446	PPCODE:	1770	PPCODE:
1447	{	1771	{
1448	dREQ;	1772	dREQ;
1449		1773
1450	req->type = REQ_MKNOD;	1774	req->type = REQ_MKNOD;
1451	req->data = newSVsv (pathname);	1775	req->sv1 = newSVsv (pathname);
1452	req->dataptr = SvPVbyte_nolen (req->data);	1776	req->ptr1 = SvPVbyte_nolen (req->sv1);
1453	req->mode = (mode_t)mode;	1777	req->mode = (mode_t)mode;
1454	req->offset = dev;	1778	req->offs = dev;
1455		1779
1456	REQ_SEND;	1780	REQ_SEND;
1457	}	1781	}
1458		1782
1459	void	1783	void
1460	aio_busy (delay,callback=&PL_sv_undef)	1784	aio_busy (double delay, SV *callback=&PL_sv_undef)
1461	double delay
1462	SV * callback
1463	PPCODE:	1785	PPCODE:
1464	{	1786	{
1465	dREQ;	1787	dREQ;
1466		1788
1467	req->type = REQ_BUSY;	1789	req->type = REQ_BUSY;
1468	req->fd = delay < 0. ? 0 : delay;	1790	req->nv1 = delay < 0. ? 0. : delay;
1469	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1470		1791
1471	REQ_SEND;	1792	REQ_SEND;
1472	}	1793	}
1473		1794
1474	void	1795	void
1475	aio_group (callback=&PL_sv_undef)	1796	aio_group (SV *callback=&PL_sv_undef)
1476	SV * callback
1477	PROTOTYPE: ;$	1797	PROTOTYPE: ;$
1478	PPCODE:	1798	PPCODE:
1479	{	1799	{
1480	dREQ;	1800	dREQ;
1481		1801
1482	req->type = REQ_GROUP;	1802	req->type = REQ_GROUP;
		1803
1483	req_send (req);	1804	req_send (req);
1484
1485	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1805	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1486	}	1806	}
1487		1807
1488	void	1808	void
1489	aio_nop (callback=&PL_sv_undef)	1809	aio_nop (SV *callback=&PL_sv_undef)
1490	SV * callback
1491	PPCODE:	1810	PPCODE:
1492	{	1811	{
1493	dREQ;	1812	dREQ;
1494		1813
1495	req->type = REQ_NOP;	1814	req->type = REQ_NOP;
…		…
1524	PROTOTYPE:	1843	PROTOTYPE:
1525	CODE:	1844	CODE:
1526	while (nreqs)	1845	while (nreqs)
1527	{	1846	{
1528	poll_wait ();	1847	poll_wait ();
1529	poll_cb (0);	1848	poll_cb ();
1530	}	1849	}
1531		1850
1532	void	1851	int
1533	poll()	1852	poll()
1534	PROTOTYPE:	1853	PROTOTYPE:
1535	CODE:	1854	CODE:
1536	if (nreqs)
1537	{
1538	poll_wait ();	1855	poll_wait ();
1539	poll_cb (0);	1856	RETVAL = poll_cb ();
1540	}	1857	OUTPUT:
		1858	RETVAL
1541		1859
1542	int	1860	int
1543	poll_fileno()	1861	poll_fileno()
1544	PROTOTYPE:	1862	PROTOTYPE:
1545	CODE:	1863	CODE:
…		…
1549		1867
1550	int	1868	int
1551	poll_cb(...)	1869	poll_cb(...)
1552	PROTOTYPE:	1870	PROTOTYPE:
1553	CODE:	1871	CODE:
1554	RETVAL = poll_cb (0);	1872	RETVAL = poll_cb ();
1555	OUTPUT:
1556	RETVAL
1557
1558	int
1559	poll_some(int max = 0)
1560	PROTOTYPE: $
1561	CODE:
1562	RETVAL = poll_cb (max);
1563	OUTPUT:	1873	OUTPUT:
1564	RETVAL	1874	RETVAL
1565		1875
1566	void	1876	void
1567	poll_wait()	1877	poll_wait()
1568	PROTOTYPE:	1878	PROTOTYPE:
1569	CODE:	1879	CODE:
1570	if (nreqs)
1571	poll_wait ();	1880	poll_wait ();
		1881
		1882	void
		1883	setsig (int signum = SIGIO)
		1884	PROTOTYPE: ;$
		1885	CODE:
		1886	{
		1887	if (block_sig_level)
		1888	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1889
		1890	X_LOCK (reslock);
		1891	main_tid = pthread_self ();
		1892	main_sig = signum;
		1893	X_UNLOCK (reslock);
		1894
		1895	if (main_sig && npending)
		1896	pthread_kill (main_tid, main_sig);
		1897	}
		1898
		1899	void
		1900	aio_block (SV *cb)
		1901	PROTOTYPE: &
		1902	PPCODE:
		1903	{
		1904	int count;
		1905
		1906	block_sig ();
		1907	PUSHMARK (SP);
		1908	PUTBACK;
		1909	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1910	SPAGAIN;
		1911	unblock_sig ();
		1912
		1913	if (SvTRUE (ERRSV))
		1914	croak (0);
		1915
		1916	XSRETURN (count);
		1917	}
1572		1918
1573	int	1919	int
1574	nreqs()	1920	nreqs()
1575	PROTOTYPE:	1921	PROTOTYPE:
1576	CODE:	1922	CODE:
…		…
1592	CODE:	1938	CODE:
1593	RETVAL = get_npending ();	1939	RETVAL = get_npending ();
1594	OUTPUT:	1940	OUTPUT:
1595	RETVAL	1941	RETVAL
1596		1942
		1943	int
		1944	nthreads()
		1945	PROTOTYPE:
		1946	CODE:
		1947	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1948	RETVAL = started;
		1949	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		1950	OUTPUT:
		1951	RETVAL
		1952
1597	PROTOTYPES: DISABLE	1953	PROTOTYPES: DISABLE
1598		1954
1599	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1955	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1600		1956
1601	void	1957	void
…		…
1616	PPCODE:	1972	PPCODE:
1617	{	1973	{
1618	int i;	1974	int i;
1619	aio_req req;	1975	aio_req req;
1620		1976
		1977	if (main_sig && !block_sig_level)
		1978	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		1979
1621	if (grp->fd == 2)	1980	if (grp->int1 == 2)
1622	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1981	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1623		1982
1624	for (i = 1; i < items; ++i )	1983	for (i = 1; i < items; ++i )
1625	{	1984	{
1626	if (GIMME_V != G_VOID)	1985	if (GIMME_V != G_VOID)
…		…
1628		1987
1629	req = SvAIO_REQ (ST (i));	1988	req = SvAIO_REQ (ST (i));
1630		1989
1631	if (req)	1990	if (req)
1632	{	1991	{
1633	++grp->length;	1992	++grp->size;
1634	req->grp = grp;	1993	req->grp = grp;
1635		1994
1636	req->grp_prev = 0;	1995	req->grp_prev = 0;
1637	req->grp_next = grp->grp_first;	1996	req->grp_next = grp->grp_first;
1638		1997
…		…
1661	av = newAV ();	2020	av = newAV ();
1662		2021
1663	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1664	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1665		2024
1666	SvREFCNT_dec (grp->data);	2025	SvREFCNT_dec (grp->sv1);
1667	grp->data = (SV *)av;	2026	grp->sv1 = (SV *)av;
1668	}	2027	}
1669		2028
1670	void	2029	void
1671	errno (aio_req grp, int errorno = errno)	2030	errno (aio_req grp, int errorno = errno)
1672	CODE:	2031	CODE:
1673	grp->errorno = errorno;	2032	grp->errorno = errorno;
1674		2033
1675	void	2034	void
1676	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1677	CODE:	2036	CODE:
1678	grp->fd2 = limit;	2037	grp->int2 = limit;
1679	aio_grp_feed (grp);	2038	aio_grp_feed (grp);
1680		2039
1681	void	2040	void
1682	feed (aio_req grp, SV *callback=&PL_sv_undef)	2041	feed (aio_req grp, SV *callback=&PL_sv_undef)
1683	CODE:	2042	CODE:
1684	{	2043	{
1685	SvREFCNT_dec (grp->fh2);	2044	SvREFCNT_dec (grp->sv2);
1686	grp->fh2 = newSVsv (callback);	2045	grp->sv2 = newSVsv (callback);
1687		2046
1688	if (grp->fd2 <= 0)	2047	if (grp->int2 <= 0)
1689	grp->fd2 = 2;	2048	grp->int2 = 2;
1690		2049
1691	aio_grp_feed (grp);	2050	aio_grp_feed (grp);
1692	}	2051	}
1693		2052

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