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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.84 by root, Sat Oct 28 01:24:19 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
…		…
51	/* used for struct dirent, AIX doesn't provide it */	85	/* used for struct dirent, AIX doesn't provide it */
52	#ifndef NAME_MAX	86	#ifndef NAME_MAX
53	# define NAME_MAX 4096	87	# define NAME_MAX 4096
54	#endif	88	#endif
55		89
56	#ifndef PTHREAD_STACK_MIN
57	/* care for broken platforms, e.g. windows */
58	# define PTHREAD_STACK_MIN 16384
59	#endif
60
61	#if __ia64
62	# define STACKSIZE 65536
63	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64	# define STACKSIZE PTHREAD_STACK_MIN
65	#else
66	# define STACKSIZE 16384
67	#endif
68
69	/* wether word reads are potentially non-atomic.
70	* this is conservatice, likely most arches this runs
71	* on have atomic word read/writes.
72	*/
73	#ifndef WORDREAD_UNSAFE
74	# if __i386 || __x86_64
75	# define WORDREAD_UNSAFE 0
76	# else
77	# define WORDREAD_UNSAFE 1
78	# endif
79	#endif
80
81	/* buffer size for various temporary buffers */	90	/* buffer size for various temporary buffers */
82	#define AIO_BUFSIZE 65536	91	#define AIO_BUFSIZE 65536
83		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
84	#define dBUF \	100	#define dBUF \
85	char *aio_buf; \	101	char *aio_buf; \
86	LOCK (wrklock); \	102	X_LOCK (wrklock); \
87	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	103	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88	UNLOCK (wrklock); \	104	X_UNLOCK (wrklock); \
89	if (!aio_buf) \	105	if (!aio_buf) \
90	return -1;	106	return -1;
		107
		108	typedef SV SV8; /* byte-sv, used for argument-checking */
91		109
92	enum {	110	enum {
93	REQ_QUIT,	111	REQ_QUIT,
94	REQ_OPEN, REQ_CLOSE,	112	REQ_OPEN, REQ_CLOSE,
95	REQ_READ, REQ_WRITE, REQ_READAHEAD,	113	REQ_READ, REQ_WRITE,
96	REQ_SENDFILE,	114	REQ_READAHEAD, REQ_SENDFILE,
97	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,
98	REQ_FSYNC, REQ_FDATASYNC,	120	REQ_FSYNC, REQ_FDATASYNC,
99	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	121	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100	REQ_MKNOD, REQ_READDIR,	122	REQ_MKNOD, REQ_READDIR,
101	REQ_LINK, REQ_SYMLINK,	123	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102	REQ_GROUP, REQ_NOP,	124	REQ_GROUP, REQ_NOP,
103	REQ_BUSY,	125	REQ_BUSY,
104	};	126	};
105		127
106	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
108		130
109	typedef struct aio_cb	131	typedef struct aio_cb
110	{	132	{
111	struct aio_cb *volatile next;	133	struct aio_cb *volatile next;
112		134
113	SV *data, *callback;	135	SV *callback;
114	SV *fh, *fh2;	136	SV *sv1, *sv2;
115	void *dataptr, *data2ptr;	137	void *ptr1, *ptr2;
116	Stat_t *statdata;
117	off_t offset;	138	off_t offs;
118	size_t length;	139	size_t size;
119	ssize_t result;	140	ssize_t result;
		141	double nv1, nv2;
120		142
121	STRLEN dataoffset;	143	STRLEN stroffset;
122	int type;	144	int type;
123	int fd, fd2;	145	int int1, int2, int3;
124	int errorno;	146	int errorno;
125	mode_t mode; /* open */	147	mode_t mode; /* open */
126		148
127	unsigned char flags;	149	unsigned char flags;
128	unsigned char pri;	150	unsigned char pri;
…		…
130	SV *self; /* the perl counterpart of this request, if any */	152	SV *self; /* the perl counterpart of this request, if any */
131	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	153	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
132	} aio_cb;	154	} aio_cb;
133		155
134	enum {	156	enum {
135	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) */
136	};	160	};
137		161
138	typedef aio_cb *aio_req;	162	typedef aio_cb *aio_req;
139	typedef aio_cb *aio_req_ornot;	163	typedef aio_cb *aio_req_ornot;
140		164
…		…
145	DEFAULT_PRI = 0,	169	DEFAULT_PRI = 0,
146	PRI_BIAS = -PRI_MIN,	170	PRI_BIAS = -PRI_MIN,
147	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	171	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
148	};	172	};
149		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
150	static int next_pri = DEFAULT_PRI + PRI_BIAS;	220	static int next_pri = DEFAULT_PRI + PRI_BIAS;
151		221
152	static unsigned int started, idle, wanted;	222	static unsigned int started, idle, wanted;
153		223
154	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
155	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
156	#else
157	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
158	#endif
159
160	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
161	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
162
163	/* worker threads management */	224	/* worker threads management */
164	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	225	static mutex_t wrklock = X_MUTEX_INIT;
165		226
166	typedef struct worker {	227	typedef struct worker {
167	/* locked by wrklock */	228	/* locked by wrklock */
168	struct worker *prev, *next;	229	struct worker *prev, *next;
169		230
170	pthread_t tid;	231	thread_t tid;
171		232
172	/* locked by reslock, reqlock or wrklock */	233	/* locked by reslock, reqlock or wrklock */
173	aio_req req; /* currently processed request */	234	aio_req req; /* currently processed request */
174	void *dbuf;	235	void *dbuf;
175	DIR *dirp;	236	DIR *dirp;
…		…
203	static volatile unsigned int nreqs, nready, npending;	264	static volatile unsigned int nreqs, nready, npending;
204	static volatile unsigned int max_idle = 4;	265	static volatile unsigned int max_idle = 4;
205	static volatile unsigned int max_outstanding = 0xffffffff;	266	static volatile unsigned int max_outstanding = 0xffffffff;
206	static int respipe [2];	267	static int respipe [2];
207		268
208	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	269	static mutex_t reslock = X_MUTEX_INIT;
209	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	270	static mutex_t reqlock = X_MUTEX_INIT;
210	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	271	static cond_t reqwait = X_COND_INIT;
211		272
212	#if WORDREAD_UNSAFE	273	#if WORDACCESS_UNSAFE
213		274
214	static unsigned int get_nready ()	275	static unsigned int get_nready ()
215	{	276	{
216	unsigned int retval;	277	unsigned int retval;
217		278
218	LOCK (reqlock);	279	X_LOCK (reqlock);
219	retval = nready;	280	retval = nready;
220	UNLOCK (reqlock);	281	X_UNLOCK (reqlock);
221		282
222	return retval;	283	return retval;
223	}	284	}
224		285
225	static unsigned int get_npending ()	286	static unsigned int get_npending ()
226	{	287	{
227	unsigned int retval;	288	unsigned int retval;
228		289
229	LOCK (reslock);	290	X_LOCK (reslock);
230	retval = npending;	291	retval = npending;
231	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);
232		304
233	return retval;	305	return retval;
234	}	306	}
235		307
236	#else	308	#else
237		309
238	# define get_nready() nready	310	# define get_nready() nready
239	# define get_npending() npending	311	# define get_npending() npending
		312	# define get_nthreads() started
240		313
241	#endif	314	#endif
242		315
243	/*	316	/*
244	* a somewhat faster data structure might be nice, but	317	* a somewhat faster data structure might be nice, but
…		…
292	}	365	}
293		366
294	abort ();	367	abort ();
295	}	368	}
296		369
297	static int poll_cb (int max);	370	static int poll_cb ();
298	static void req_invoke (aio_req req);	371	static int req_invoke (aio_req req);
299	static void req_free (aio_req req);	372	static void req_destroy (aio_req req);
300	static void req_cancel (aio_req req);	373	static void req_cancel (aio_req req);
301		374
302	/* must be called at most once */	375	/* must be called at most once */
303	static SV *req_sv (aio_req req, const char *klass)	376	static SV *req_sv (aio_req req, const char *klass)
304	{	377	{
…		…
323	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
324	}	397	}
325		398
326	static void aio_grp_feed (aio_req grp)	399	static void aio_grp_feed (aio_req grp)
327	{	400	{
		401	block_sig ();
		402
328	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	403	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
329	{	404	{
330	int old_len = grp->length;	405	int old_len = grp->size;
331		406
332	if (grp->fh2 && SvOK (grp->fh2))	407	if (grp->sv2 && SvOK (grp->sv2))
333	{	408	{
334	dSP;	409	dSP;
335		410
336	ENTER;	411	ENTER;
337	SAVETMPS;	412	SAVETMPS;
338	PUSHMARK (SP);	413	PUSHMARK (SP);
339	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	414	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
340	PUTBACK;	415	PUTBACK;
341	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	416	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
342	SPAGAIN;	417	SPAGAIN;
343	FREETMPS;	418	FREETMPS;
344	LEAVE;	419	LEAVE;
345	}	420	}
346		421
347	/* stop if no progress has been made */	422	/* stop if no progress has been made */
348	if (old_len == grp->length)	423	if (old_len == grp->size)
349	{	424	{
350	SvREFCNT_dec (grp->fh2);	425	SvREFCNT_dec (grp->sv2);
351	grp->fh2 = 0;	426	grp->sv2 = 0;
352	break;	427	break;
353	}	428	}
354	}	429	}
		430
		431	unblock_sig ();
355	}	432	}
356		433
357	static void aio_grp_dec (aio_req grp)	434	static void aio_grp_dec (aio_req grp)
358	{	435	{
359	--grp->length;	436	--grp->size;
360		437
361	/* call feeder, if applicable */	438	/* call feeder, if applicable */
362	aio_grp_feed (grp);	439	aio_grp_feed (grp);
363		440
364	/* finish, if done */	441	/* finish, if done */
365	if (!grp->length && grp->fd)	442	if (!grp->size && grp->int1)
366	{	443	{
		444	block_sig ();
		445
367	req_invoke (grp);	446	if (!req_invoke (grp))
		447	{
		448	req_destroy (grp);
		449	unblock_sig ();
		450	croak (0);
		451	}
		452
368	req_free (grp);	453	req_destroy (grp);
		454	unblock_sig ();
369	}	455	}
370	}	456	}
371		457
372	static void req_invoke (aio_req req)	458	static int req_invoke (aio_req req)
373	{	459	{
374	dSP;	460	dSP;
		461
		462	if (req->flags & FLAG_SV2_RO_OFF)
		463	SvREADONLY_off (req->sv2);
375		464
376	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	465	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
377	{	466	{
378	ENTER;	467	ENTER;
379	SAVETMPS;	468	SAVETMPS;
…		…
387	SV *rv = &PL_sv_undef;	476	SV *rv = &PL_sv_undef;
388		477
389	if (req->result >= 0)	478	if (req->result >= 0)
390	{	479	{
391	int i;	480	int i;
392	char *buf = req->data2ptr;	481	char *buf = req->ptr2;
393	AV *av = newAV ();	482	AV *av = newAV ();
394		483
395	av_extend (av, req->result - 1);	484	av_extend (av, req->result - 1);
396		485
397	for (i = 0; i < req->result; ++i)	486	for (i = 0; i < req->result; ++i)
…		…
417	PUSHs (sv_2mortal (newSViv (req->result)));	506	PUSHs (sv_2mortal (newSViv (req->result)));
418	PUTBACK;	507	PUTBACK;
419	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	508	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
420	SPAGAIN;	509	SPAGAIN;
421		510
422	fh = SvREFCNT_inc (POPs);	511	fh = POPs;
423
424	PUSHMARK (SP);	512	PUSHMARK (SP);
425	XPUSHs (sv_2mortal (fh));	513	XPUSHs (fh);
426	}	514	}
427	break;	515	break;
428		516
429	case REQ_GROUP:	517	case REQ_GROUP:
430	req->fd = 2; /* mark group as finished */	518	req->int1 = 2; /* mark group as finished */
431		519
432	if (req->data)	520	if (req->sv1)
433	{	521	{
434	int i;	522	int i;
435	AV *av = (AV *)req->data;	523	AV *av = (AV *)req->sv1;
436		524
437	EXTEND (SP, AvFILL (av) + 1);	525	EXTEND (SP, AvFILL (av) + 1);
438	for (i = 0; i <= AvFILL (av); ++i)	526	for (i = 0; i <= AvFILL (av); ++i)
439	PUSHs (*av_fetch (av, i, 0));	527	PUSHs (*av_fetch (av, i, 0));
440	}	528	}
…		…
442		530
443	case REQ_NOP:	531	case REQ_NOP:
444	case REQ_BUSY:	532	case REQ_BUSY:
445	break;	533	break;
446		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
447	default:	559	default:
448	PUSHs (sv_2mortal (newSViv (req->result)));	560	PUSHs (sv_2mortal (newSViv (req->result)));
449	break;	561	break;
450	}	562	}
451		563
…		…
471	grp->grp_first = req->grp_next;	583	grp->grp_first = req->grp_next;
472		584
473	aio_grp_dec (grp);	585	aio_grp_dec (grp);
474	}	586	}
475		587
476	if (SvTRUE (ERRSV))	588	return !SvTRUE (ERRSV);
477	{
478	req_free (req);
479	croak (0);
480	}
481	}	589	}
482		590
483	static void req_free (aio_req req)	591	static void req_destroy (aio_req req)
484	{	592	{
485	if (req->self)	593	if (req->self)
486	{	594	{
487	sv_unmagic (req->self, PERL_MAGIC_ext);	595	sv_unmagic (req->self, PERL_MAGIC_ext);
488	SvREFCNT_dec (req->self);	596	SvREFCNT_dec (req->self);
489	}	597	}
490		598
491	SvREFCNT_dec (req->data);
492	SvREFCNT_dec (req->fh);	599	SvREFCNT_dec (req->sv1);
493	SvREFCNT_dec (req->fh2);	600	SvREFCNT_dec (req->sv2);
494	SvREFCNT_dec (req->callback);	601	SvREFCNT_dec (req->callback);
495	Safefree (req->statdata);
496		602
497	if (req->type == REQ_READDIR)	603	if (req->flags & FLAG_PTR2_FREE)
498	free (req->data2ptr);	604	free (req->ptr2);
499		605
500	Safefree (req);	606	Safefree (req);
501	}	607	}
502		608
503	static void req_cancel_subs (aio_req grp)	609	static void req_cancel_subs (aio_req grp)
…		…
505	aio_req sub;	611	aio_req sub;
506		612
507	if (grp->type != REQ_GROUP)	613	if (grp->type != REQ_GROUP)
508	return;	614	return;
509		615
510	SvREFCNT_dec (grp->fh2);	616	SvREFCNT_dec (grp->sv2);
511	grp->fh2 = 0;	617	grp->sv2 = 0;
512		618
513	for (sub = grp->grp_first; sub; sub = sub->grp_next)	619	for (sub = grp->grp_first; sub; sub = sub->grp_next)
514	req_cancel (sub);	620	req_cancel (sub);
515	}	621	}
516		622
…		…
519	req->flags |= FLAG_CANCELLED;	625	req->flags |= FLAG_CANCELLED;
520		626
521	req_cancel_subs (req);	627	req_cancel_subs (req);
522	}	628	}
523		629
524	static void *aio_proc(void *arg);	630	X_THREAD_PROC (aio_proc);
525		631
526	static void start_thread (void)	632	static void start_thread (void)
527	{	633	{
528	sigset_t fullsigset, oldsigset;
529	pthread_attr_t attr;
530
531	worker *wrk = calloc (1, sizeof (worker));	634	worker *wrk = calloc (1, sizeof (worker));
532		635
533	if (!wrk)	636	if (!wrk)
534	croak ("unable to allocate worker thread data");	637	croak ("unable to allocate worker thread data");
535		638
536	pthread_attr_init (&attr);
537	pthread_attr_setstacksize (&attr, STACKSIZE);
538	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
539	#ifdef PTHREAD_SCOPE_PROCESS
540	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
541	#endif
542
543	sigfillset (&fullsigset);
544
545	LOCK (wrklock);	639	X_LOCK (wrklock);
546	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
547		640
548	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	641	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
549	{	642	{
550	wrk->prev = &wrk_first;	643	wrk->prev = &wrk_first;
551	wrk->next = wrk_first.next;	644	wrk->next = wrk_first.next;
552	wrk_first.next->prev = wrk;	645	wrk_first.next->prev = wrk;
553	wrk_first.next = wrk;	646	wrk_first.next = wrk;
554	++started;	647	++started;
555	}	648	}
556	else	649	else
557	free (wrk);	650	free (wrk);
558		651
559	sigprocmask (SIG_SETMASK, &oldsigset, 0);
560	UNLOCK (wrklock);	652	X_UNLOCK (wrklock);
561	}	653	}
562		654
563	static void maybe_start_thread ()	655	static void maybe_start_thread ()
564	{	656	{
565	if (started >= wanted)	657	if (get_nthreads () >= wanted)
566	return;	658	return;
567		659
568	/* todo: maybe use idle here, but might be less exact */	660	/* todo: maybe use idle here, but might be less exact */
569	if ((int)nready <= (int)started - (int)(nreqs - get_nready () - get_npending ()))	661	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
570	return;	662	return;
571		663
572	start_thread ();	664	start_thread ();
573	}	665	}
574		666
575	static void req_send (aio_req req)	667	static void req_send (aio_req req)
576	{	668	{
		669	block_sig ();
		670
577	++nreqs;	671	++nreqs;
578		672
579	LOCK (reqlock);	673	X_LOCK (reqlock);
580	++nready;	674	++nready;
581	reqq_push (&req_queue, req);	675	reqq_push (&req_queue, req);
582	pthread_cond_signal (&reqwait);	676	X_COND_SIGNAL (reqwait);
583	UNLOCK (reqlock);	677	X_UNLOCK (reqlock);
		678
		679	unblock_sig ();
584		680
585	maybe_start_thread ();	681	maybe_start_thread ();
586	}	682	}
587		683
588	static void end_thread (void)	684	static void end_thread (void)
…		…
592	Newz (0, req, 1, aio_cb);	688	Newz (0, req, 1, aio_cb);
593		689
594	req->type = REQ_QUIT;	690	req->type = REQ_QUIT;
595	req->pri = PRI_MAX + PRI_BIAS;	691	req->pri = PRI_MAX + PRI_BIAS;
596		692
597	LOCK (reqlock);	693	X_LOCK (reqlock);
598	reqq_push (&req_queue, req);	694	reqq_push (&req_queue, req);
599	pthread_cond_signal (&reqwait);	695	X_COND_SIGNAL (reqwait);
600	UNLOCK (reqlock);	696	X_UNLOCK (reqlock);
601		697
602	LOCK (wrklock);	698	X_LOCK (wrklock);
603	--started;	699	--started;
604	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);
605	}	708	}
606		709
607	static void min_parallel (int nthreads)	710	static void min_parallel (int nthreads)
608	{	711	{
609	if (wanted < nthreads)	712	if (wanted < nthreads)
…		…
624	fd_set rfd;	727	fd_set rfd;
625		728
626	while (nreqs)	729	while (nreqs)
627	{	730	{
628	int size;	731	int size;
629	if (WORDREAD_UNSAFE) LOCK (reslock);	732	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
630	size = res_queue.size;	733	size = res_queue.size;
631	if (WORDREAD_UNSAFE) UNLOCK (reslock);	734	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
632		735
633	if (size)	736	if (size)
634	return;	737	return;
635		738
636	maybe_start_thread ();	739	maybe_start_thread ();
…		…
640		743
641	select (respipe [0] + 1, &rfd, 0, 0, 0);	744	select (respipe [0] + 1, &rfd, 0, 0, 0);
642	}	745	}
643	}	746	}
644		747
645	static int poll_cb (int max)	748	static int poll_cb ()
646	{	749	{
647	dSP;	750	dSP;
648	int count = 0;	751	int count = 0;
		752	int maxreqs = max_poll_reqs;
649	int do_croak = 0;	753	int do_croak = 0;
		754	struct timeval tv_start, tv_now;
650	aio_req req;	755	aio_req req;
		756
		757	if (max_poll_time)
		758	gettimeofday (&tv_start, 0);
		759
		760	block_sig ();
651		761
652	for (;;)	762	for (;;)
653	{	763	{
654	while (max <= 0 || count < max)	764	for (;;)
655	{	765	{
656	maybe_start_thread ();	766	maybe_start_thread ();
657		767
658	LOCK (reslock);	768	X_LOCK (reslock);
659	req = reqq_shift (&res_queue);	769	req = reqq_shift (&res_queue);
660		770
661	if (req)	771	if (req)
662	{	772	{
663	--npending;	773	--npending;
664		774
665	if (!res_queue.size)	775	if (!res_queue.size)
666	{	776	{
667	/* read any signals sent by the worker threads */	777	/* read any signals sent by the worker threads */
668	char buf [32];	778	char buf [4];
669	while (read (respipe [0], buf, 32) == 32)	779	while (read (respipe [0], buf, 4) == 4)
670	;	780	;
671	}	781	}
672	}	782	}
673		783
674	UNLOCK (reslock);	784	X_UNLOCK (reslock);
675		785
676	if (!req)	786	if (!req)
677	break;	787	break;
678		788
679	--nreqs;	789	--nreqs;
680		790
681	if (req->type == REQ_GROUP && req->length)	791	if (req->type == REQ_GROUP && req->size)
682	{	792	{
683	req->fd = 1; /* mark request as delayed */	793	req->int1 = 1; /* mark request as delayed */
684	continue;	794	continue;
685	}	795	}
686	else	796	else
687	{	797	{
688	if (req->type == REQ_READ)	798	if (!req_invoke (req))
689	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
690
691	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
692	SvREADONLY_off (req->data);
693
694	if (req->statdata)
695	{	799	{
696	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	800	req_destroy (req);
697	PL_laststatval = req->result;	801	unblock_sig ();
698	PL_statcache = *(req->statdata);	802	croak (0);
699	}	803	}
700
701	req_invoke (req);
702		804
703	count++;	805	count++;
704	}	806	}
705		807
706	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	}
707	}	820	}
708		821
709	if (nreqs <= max_outstanding)	822	if (nreqs <= max_outstanding)
710	break;	823	break;
711		824
712	poll_wait ();	825	poll_wait ();
713		826
714	max = 0;	827	++maxreqs;
715	}	828	}
716		829
		830	unblock_sig ();
717	return count;	831	return count;
718	}
719
720	static void create_pipe ()
721	{
722	if (pipe (respipe))
723	croak ("unable to initialize result pipe");
724
725	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
726	croak ("cannot set result pipe to nonblocking mode");
727
728	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
729	croak ("cannot set result pipe to nonblocking mode");
730	}	832	}
731		833
732	/*****************************************************************************/	834	/*****************************************************************************/
733	/* work around various missing functions */	835	/* work around various missing functions */
734		836
…		…
739	/*	841	/*
740	* make our pread/pwrite safe against themselves, but not against	842	* make our pread/pwrite safe against themselves, but not against
741	* 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,
742	* but that's your problem, not mine.	844	* but that's your problem, not mine.
743	*/	845	*/
744	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	846	static mutex_t preadwritelock = X_MUTEX_INIT;
745		847
746	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)
747	{	849	{
748	ssize_t res;	850	ssize_t res;
749	off_t ooffset;	851	off_t ooffset;
750		852
751	LOCK (preadwritelock);	853	X_LOCK (preadwritelock);
752	ooffset = lseek (fd, 0, SEEK_CUR);	854	ooffset = lseek (fd, 0, SEEK_CUR);
753	lseek (fd, offset, SEEK_SET);	855	lseek (fd, offset, SEEK_SET);
754	res = read (fd, buf, count);	856	res = read (fd, buf, count);
755	lseek (fd, ooffset, SEEK_SET);	857	lseek (fd, ooffset, SEEK_SET);
756	UNLOCK (preadwritelock);	858	X_UNLOCK (preadwritelock);
757		859
758	return res;	860	return res;
759	}	861	}
760		862
761	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)
762	{	864	{
763	ssize_t res;	865	ssize_t res;
764	off_t ooffset;	866	off_t ooffset;
765		867
766	LOCK (preadwritelock);	868	X_LOCK (preadwritelock);
767	ooffset = lseek (fd, 0, SEEK_CUR);	869	ooffset = lseek (fd, 0, SEEK_CUR);
768	lseek (fd, offset, SEEK_SET);	870	lseek (fd, offset, SEEK_SET);
769	res = write (fd, buf, count);	871	res = write (fd, buf, count);
770	lseek (fd, offset, SEEK_SET);	872	lseek (fd, offset, SEEK_SET);
771	UNLOCK (preadwritelock);	873	X_UNLOCK (preadwritelock);
772		874
773	return res;	875	return res;
774	}	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
775	#endif	905	#endif
776		906
777	#if !HAVE_FDATASYNC	907	#if !HAVE_FDATASYNC
778	# define fdatasync fsync	908	# define fdatasync fsync
779	#endif	909	#endif
…		…
781	#if !HAVE_READAHEAD	911	#if !HAVE_READAHEAD
782	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	912	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
783		913
784	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)
785	{	915	{
		916	size_t todo = count;
786	dBUF;	917	dBUF;
787		918
788	while (count > 0)	919	while (todo > 0)
789	{	920	{
790	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	921	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
791		922
792	pread (fd, aio_buf, len, offset);	923	pread (fd, aio_buf, len, offset);
793	offset += len;	924	offset += len;
794	count -= len;	925	todo -= len;
795	}	926	}
796		927
797	errno = 0;	928	errno = 0;
		929	return count;
798	}	930	}
799		931
800	#endif	932	#endif
801		933
802	#if !HAVE_READDIR_R	934	#if !HAVE_READDIR_R
803	# define readdir_r aio_readdir_r	935	# define readdir_r aio_readdir_r
804		936
805	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	937	static mutex_t readdirlock = X_MUTEX_INIT;
806		938
807	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)
808	{	940	{
809	struct dirent *e;	941	X_DIRENT *e;
810	int errorno;	942	int errorno;
811		943
812	LOCK (readdirlock);	944	X_LOCK (readdirlock);
813		945
814	e = readdir (dirp);	946	e = readdir (dirp);
815	errorno = errno;	947	errorno = errno;
816		948
817	if (e)	949	if (e)
…		…
820	strcpy (ent->d_name, e->d_name);	952	strcpy (ent->d_name, e->d_name);
821	}	953	}
822	else	954	else
823	*res = 0;	955	*res = 0;
824		956
825	UNLOCK (readdirlock);	957	X_UNLOCK (readdirlock);
826		958
827	errno = errorno;	959	errno = errorno;
828	return e ? 0 : -1;	960	return e ? 0 : -1;
829	}	961	}
830	#endif	962	#endif
…		…
926	static void scandir_ (aio_req req, worker *self)	1058	static void scandir_ (aio_req req, worker *self)
927	{	1059	{
928	DIR *dirp;	1060	DIR *dirp;
929	union	1061	union
930	{	1062	{
931	struct dirent d;	1063	X_DIRENT d;
932	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1064	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
933	} *u;	1065	} *u;
934	struct dirent *entp;	1066	X_DIRENT *entp;
935	char *name, *names;	1067	char *name, *names;
936	int memlen = 4096;	1068	int memlen = 4096;
937	int memofs = 0;	1069	int memofs = 0;
938	int res = 0;	1070	int res = 0;
939	int errorno;
940		1071
941	LOCK (wrklock);	1072	X_LOCK (wrklock);
942	self->dirp = dirp = opendir (req->dataptr);	1073	self->dirp = dirp = opendir (req->ptr1);
943	self->dbuf = u = malloc (sizeof (*u));	1074	self->dbuf = u = malloc (sizeof (*u));
		1075	req->flags |= FLAG_PTR2_FREE;
944	req->data2ptr = names = malloc (memlen);	1076	req->ptr2 = names = malloc (memlen);
945	UNLOCK (wrklock);	1077	X_UNLOCK (wrklock);
946		1078
947	if (dirp && u && names)	1079	if (dirp && u && names)
948	for (;;)	1080	for (;;)
949	{	1081	{
950	errno = 0;	1082	errno = 0;
…		…
962	res++;	1094	res++;
963		1095
964	while (memofs + len > memlen)	1096	while (memofs + len > memlen)
965	{	1097	{
966	memlen *= 2;	1098	memlen *= 2;
967	LOCK (wrklock);	1099	X_LOCK (wrklock);
968	req->data2ptr = names = realloc (names, memlen);	1100	req->ptr2 = names = realloc (names, memlen);
969	UNLOCK (wrklock);	1101	X_UNLOCK (wrklock);
970		1102
971	if (!names)	1103	if (!names)
972	break;	1104	break;
973	}	1105	}
974		1106
…		…
983	req->result = res;	1115	req->result = res;
984	}	1116	}
985		1117
986	/*****************************************************************************/	1118	/*****************************************************************************/
987		1119
988	static void *aio_proc (void *thr_arg)	1120	X_THREAD_PROC (aio_proc)
989	{	1121	{
		1122	{//D
990	aio_req req;	1123	aio_req req;
991	struct timespec ts;	1124	struct timespec ts;
992	worker *self = (worker *)thr_arg;	1125	worker *self = (worker *)thr_arg;
993		1126
994	/* try to distribute timeouts somewhat evenly */	1127	/* try to distribute timeouts somewhat randomly */
995	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1128	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
996	* (1000000000UL / 1024UL);
997		1129
998	for (;;)	1130	for (;;)
999	{	1131	{
1000	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1132	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1001		1133
1002	LOCK (reqlock);	1134	X_LOCK (reqlock);
1003		1135
1004	for (;;)	1136	for (;;)
1005	{	1137	{
1006	self->req = req = reqq_shift (&req_queue);	1138	self->req = req = reqq_shift (&req_queue);
1007		1139
1008	if (req)	1140	if (req)
1009	break;	1141	break;
1010		1142
1011	++idle;	1143	++idle;
1012		1144
1013	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1145	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1014	== ETIMEDOUT)	1146	== ETIMEDOUT)
1015	{	1147	{
1016	if (idle > max_idle)	1148	if (idle > max_idle)
1017	{	1149	{
1018	--idle;	1150	--idle;
1019	UNLOCK (reqlock);	1151	X_UNLOCK (reqlock);
1020	LOCK (wrklock);	1152	X_LOCK (wrklock);
1021	--started;	1153	--started;
1022	UNLOCK (wrklock);	1154	X_UNLOCK (wrklock);
1023	goto quit;	1155	goto quit;
1024	}	1156	}
1025		1157
1026	/* we are allowed to idle, so do so without any timeout */	1158	/* we are allowed to idle, so do so without any timeout */
1027	pthread_cond_wait (&reqwait, &reqlock);	1159	X_COND_WAIT (reqwait, reqlock);
1028	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1160	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1029	}	1161	}
1030		1162
1031	--idle;	1163	--idle;
1032	}	1164	}
1033		1165
1034	--nready;	1166	--nready;
1035		1167
1036	UNLOCK (reqlock);	1168	X_UNLOCK (reqlock);
1037		1169
1038	errno = 0; /* strictly unnecessary */	1170	errno = 0; /* strictly unnecessary */
1039		1171
1040	if (!(req->flags & FLAG_CANCELLED))	1172	if (!(req->flags & FLAG_CANCELLED))
1041	switch (req->type)	1173	switch (req->type)
1042	{	1174	{
1043	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1175	case REQ_READ: req->result = req->offs >= 0
1044	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;
1045		1181
1046	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;
1047	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;
1048		1184
1049	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;
1050	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;
1051	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;
1052		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
1053	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;
1054	case REQ_CLOSE: req->result = close (req->fd); break;	1197	case REQ_CLOSE: req->result = close (req->int1); break;
1055	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1198	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1056	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;
1057	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1201	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1058	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1202	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1059	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1203	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1060	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;
1061		1206
1062	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1207	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1063	case REQ_FSYNC: req->result = fsync (req->fd); break;	1208	case REQ_FSYNC: req->result = fsync (req->int1); break;
1064	case REQ_READDIR: scandir_ (req, self); break;	1209	case REQ_READDIR: scandir_ (req, self); break;
1065		1210
1066	case REQ_BUSY:	1211	case REQ_BUSY:
		1212	#ifdef _WIN32
		1213	Sleep (req->nv1 * 1000.);
		1214	#else
1067	{	1215	{
1068	struct timeval tv;	1216	struct timeval tv;
1069		1217
1070	tv.tv_sec = req->fd;	1218	tv.tv_sec = req->nv1;
1071	tv.tv_usec = req->fd2;	1219	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1072		1220
1073	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);
1074	}	1248	}
1075		1249
1076	case REQ_GROUP:	1250	case REQ_GROUP:
1077	case REQ_NOP:	1251	case REQ_NOP:
1078	break;	1252	break;
1079		1253
1080	case REQ_QUIT:	1254	case REQ_QUIT:
1081	goto quit;	1255	goto quit;
1082		1256
1083	default:	1257	default:
1084	req->result = ENOSYS;	1258	req->result = -1;
1085	break;	1259	break;
1086	}	1260	}
1087		1261
1088	req->errorno = errno;	1262	req->errorno = errno;
1089		1263
1090	LOCK (reslock);	1264	X_LOCK (reslock);
1091		1265
1092	++npending;	1266	++npending;
1093		1267
1094	if (!reqq_push (&res_queue, req))	1268	if (!reqq_push (&res_queue, req))
		1269	{
1095	/* write a dummy byte to the pipe so fh becomes ready */	1270	/* write a dummy byte to the pipe so fh becomes ready */
1096	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	}
1097		1277
1098	self->req = 0;	1278	self->req = 0;
1099	worker_clear (self);	1279	worker_clear (self);
1100		1280
1101	UNLOCK (reslock);	1281	X_UNLOCK (reslock);
1102	}	1282	}
1103		1283
1104	quit:	1284	quit:
1105	LOCK (wrklock);	1285	X_LOCK (wrklock);
1106	worker_free (self);	1286	worker_free (self);
1107	UNLOCK (wrklock);	1287	X_UNLOCK (wrklock);
1108		1288
1109	return 0;	1289	return 0;
		1290	}//D
1110	}	1291	}
1111		1292
1112	/*****************************************************************************/	1293	/*****************************************************************************/
1113		1294
1114	static void atfork_prepare (void)	1295	static void atfork_prepare (void)
1115	{	1296	{
1116	LOCK (wrklock);	1297	X_LOCK (wrklock);
1117	LOCK (reqlock);	1298	X_LOCK (reqlock);
1118	LOCK (reslock);	1299	X_LOCK (reslock);
1119	#if !HAVE_PREADWRITE	1300	#if !HAVE_PREADWRITE
1120	LOCK (preadwritelock);	1301	X_LOCK (preadwritelock);
1121	#endif	1302	#endif
1122	#if !HAVE_READDIR_R	1303	#if !HAVE_READDIR_R
1123	LOCK (readdirlock);	1304	X_LOCK (readdirlock);
1124	#endif	1305	#endif
1125	}	1306	}
1126		1307
1127	static void atfork_parent (void)	1308	static void atfork_parent (void)
1128	{	1309	{
1129	#if !HAVE_READDIR_R	1310	#if !HAVE_READDIR_R
1130	UNLOCK (readdirlock);	1311	X_UNLOCK (readdirlock);
1131	#endif	1312	#endif
1132	#if !HAVE_PREADWRITE	1313	#if !HAVE_PREADWRITE
1133	UNLOCK (preadwritelock);	1314	X_UNLOCK (preadwritelock);
1134	#endif	1315	#endif
1135	UNLOCK (reslock);	1316	X_UNLOCK (reslock);
1136	UNLOCK (reqlock);	1317	X_UNLOCK (reqlock);
1137	UNLOCK (wrklock);	1318	X_UNLOCK (wrklock);
1138	}	1319	}
1139		1320
1140	static void atfork_child (void)	1321	static void atfork_child (void)
1141	{	1322	{
1142	aio_req prv;	1323	aio_req prv;
1143		1324
1144	while (prv = reqq_shift (&req_queue))	1325	while (prv = reqq_shift (&req_queue))
1145	req_free (prv);	1326	req_destroy (prv);
1146		1327
1147	while (prv = reqq_shift (&res_queue))	1328	while (prv = reqq_shift (&res_queue))
1148	req_free (prv);	1329	req_destroy (prv);
1149		1330
1150	while (wrk_first.next != &wrk_first)	1331	while (wrk_first.next != &wrk_first)
1151	{	1332	{
1152	worker *wrk = wrk_first.next;	1333	worker *wrk = wrk_first.next;
1153		1334
1154	if (wrk->req)	1335	if (wrk->req)
1155	req_free (wrk->req);	1336	req_destroy (wrk->req);
1156		1337
1157	worker_clear (wrk);	1338	worker_clear (wrk);
1158	worker_free (wrk);	1339	worker_free (wrk);
1159	}	1340	}
1160		1341
…		…
1164	nready = 0;	1345	nready = 0;
1165	npending = 0;	1346	npending = 0;
1166		1347
1167	close (respipe [0]);	1348	close (respipe [0]);
1168	close (respipe [1]);	1349	close (respipe [1]);
1169	create_pipe ();	1350
		1351	if (!create_pipe (respipe))
		1352	croak ("cannot set result pipe to nonblocking mode");
1170		1353
1171	atfork_parent ();	1354	atfork_parent ();
1172	}	1355	}
1173		1356
1174	#define dREQ \	1357	#define dREQ \
…		…
1203	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1386	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1204	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1387	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1205	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1388	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1206	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1389	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1207	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
1208	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1399	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1400	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1401	#endif
1209		1402
1210	create_pipe ();	1403	if (!create_pipe (respipe))
		1404	croak ("cannot set result pipe to nonblocking mode");
		1405
1211	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1406	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1212	}	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;
1213		1420
1214	void	1421	void
1215	min_parallel (int nthreads)	1422	min_parallel (int nthreads)
1216	PROTOTYPE: $	1423	PROTOTYPE: $
1217		1424
1218	void	1425	void
1219	max_parallel (int nthreads)	1426	max_parallel (int nthreads)
1220	PROTOTYPE: $	1427	PROTOTYPE: $
		1428
		1429	void
		1430	max_idle (int nthreads)
		1431	PROTOTYPE: $
		1432	CODE:
		1433	set_max_idle (nthreads);
1221		1434
1222	int	1435	int
1223	max_outstanding (int maxreqs)	1436	max_outstanding (int maxreqs)
1224	PROTOTYPE: $	1437	PROTOTYPE: $
1225	CODE:	1438	CODE:
…		…
1227	max_outstanding = maxreqs;	1440	max_outstanding = maxreqs;
1228	OUTPUT:	1441	OUTPUT:
1229	RETVAL	1442	RETVAL
1230		1443
1231	void	1444	void
1232	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1445	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1233	SV * pathname
1234	int flags
1235	int mode
1236	SV * callback
1237	PROTOTYPE: $$$;$	1446	PROTOTYPE: $$$;$
1238	PPCODE:	1447	PPCODE:
1239	{	1448	{
1240	dREQ;	1449	dREQ;
1241		1450
1242	req->type = REQ_OPEN;	1451	req->type = REQ_OPEN;
1243	req->data = newSVsv (pathname);	1452	req->sv1 = newSVsv (pathname);
1244	req->dataptr = SvPVbyte_nolen (req->data);	1453	req->ptr1 = SvPVbyte_nolen (req->sv1);
1245	req->fd = flags;	1454	req->int1 = flags;
1246	req->mode = mode;	1455	req->mode = mode;
1247		1456
1248	REQ_SEND;	1457	REQ_SEND;
1249	}	1458	}
1250		1459
1251	void	1460	void
1252	aio_close (fh,callback=&PL_sv_undef)	1461	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1253	SV * fh
1254	SV * callback
1255	PROTOTYPE: $;$	1462	PROTOTYPE: $;$
1256	ALIAS:	1463	ALIAS:
1257	aio_close = REQ_CLOSE	1464	aio_close = REQ_CLOSE
1258	aio_fsync = REQ_FSYNC	1465	aio_fsync = REQ_FSYNC
1259	aio_fdatasync = REQ_FDATASYNC	1466	aio_fdatasync = REQ_FDATASYNC
1260	PPCODE:	1467	PPCODE:
1261	{	1468	{
1262	dREQ;	1469	dREQ;
1263		1470
1264	req->type = ix;	1471	req->type = ix;
1265	req->fh = newSVsv (fh);	1472	req->sv1 = newSVsv (fh);
1266	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1473	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1267		1474
1268	REQ_SEND (req);	1475	REQ_SEND (req);
1269	}	1476	}
1270		1477
1271	void	1478	void
1272	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)
1273	SV * fh
1274	UV offset
1275	UV length
1276	SV * data
1277	UV dataoffset
1278	SV * callback
1279	ALIAS:	1480	ALIAS:
1280	aio_read = REQ_READ	1481	aio_read = REQ_READ
1281	aio_write = REQ_WRITE	1482	aio_write = REQ_WRITE
1282	PROTOTYPE: $$$$$;$	1483	PROTOTYPE: $$$$$;$
1283	PPCODE:	1484	PPCODE:
1284	{	1485	{
1285	aio_req req;
1286	STRLEN svlen;	1486	STRLEN svlen;
1287	char *svptr = SvPVbyte (data, svlen);	1487	char *svptr = SvPVbyte (data, svlen);
		1488	UV len = SvUV (length);
1288		1489
1289	SvUPGRADE (data, SVt_PV);	1490	SvUPGRADE (data, SVt_PV);
1290	SvPOK_on (data);	1491	SvPOK_on (data);
1291		1492
1292	if (dataoffset < 0)	1493	if (dataoffset < 0)
1293	dataoffset += svlen;	1494	dataoffset += svlen;
1294		1495
1295	if (dataoffset < 0 || dataoffset > svlen)	1496	if (dataoffset < 0 || dataoffset > svlen)
1296	croak ("data offset outside of string");	1497	croak ("dataoffset outside of data scalar");
1297		1498
1298	if (ix == REQ_WRITE)	1499	if (ix == REQ_WRITE)
1299	{	1500	{
1300	/* write: check length and adjust. */	1501	/* write: check length and adjust. */
1301	if (length < 0 || length + dataoffset > svlen)	1502	if (!SvOK (length) || len + dataoffset > svlen)
1302	length = svlen - dataoffset;	1503	len = svlen - dataoffset;
1303	}	1504	}
1304	else	1505	else
1305	{	1506	{
1306	/* read: grow scalar as necessary */	1507	/* read: grow scalar as necessary */
1307	svptr = SvGROW (data, length + dataoffset);	1508	svptr = SvGROW (data, len + dataoffset + 1);
1308	}	1509	}
1309		1510
1310	if (length < 0)	1511	if (len < 0)
1311	croak ("length must not be negative");	1512	croak ("length must not be negative");
1312		1513
1313	{	1514	{
1314	dREQ;	1515	dREQ;
1315		1516
1316	req->type = ix;	1517	req->type = ix;
1317	req->fh = newSVsv (fh);	1518	req->sv1 = newSVsv (fh);
1318	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1519	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1319	: IoOFP (sv_2io (fh)));	1520	: IoOFP (sv_2io (fh)));
		1521	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1320	req->offset = offset;	1522	req->size = len;
1321	req->length = length;
1322	req->data = SvREFCNT_inc (data);	1523	req->sv2 = SvREFCNT_inc (data);
1323	req->dataptr = (char *)svptr + dataoffset;	1524	req->ptr1 = (char *)svptr + dataoffset;
		1525	req->stroffset = dataoffset;
1324		1526
1325	if (!SvREADONLY (data))	1527	if (!SvREADONLY (data))
1326	{	1528	{
1327	SvREADONLY_on (data);	1529	SvREADONLY_on (data);
1328	req->data2ptr = (void *)data;	1530	req->flags |= FLAG_SV2_RO_OFF;
1329	}	1531	}
1330		1532
1331	REQ_SEND;	1533	REQ_SEND;
1332	}	1534	}
1333	}	1535	}
1334		1536
1335	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
1336	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)
1337	SV * out_fh
1338	SV * in_fh
1339	UV in_offset
1340	UV length
1341	SV * callback
1342	PROTOTYPE: $$$$;$	1559	PROTOTYPE: $$$$;$
1343	PPCODE:	1560	PPCODE:
1344	{	1561	{
1345	dREQ;	1562	dREQ;
1346		1563
1347	req->type = REQ_SENDFILE;	1564	req->type = REQ_SENDFILE;
1348	req->fh = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1349	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1350	req->fh2 = newSVsv (in_fh);	1567	req->sv2 = newSVsv (in_fh);
1351	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1568	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1352	req->offset = in_offset;	1569	req->offs = SvVAL64 (in_offset);
1353	req->length = length;	1570	req->size = length;
1354		1571
1355	REQ_SEND;	1572	REQ_SEND;
1356	}	1573	}
1357		1574
1358	void	1575	void
1359	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1360	SV * fh
1361	UV offset
1362	IV length
1363	SV * callback
1364	PROTOTYPE: $$$;$	1577	PROTOTYPE: $$$;$
1365	PPCODE:	1578	PPCODE:
1366	{	1579	{
1367	dREQ;	1580	dREQ;
1368		1581
1369	req->type = REQ_READAHEAD;	1582	req->type = REQ_READAHEAD;
1370	req->fh = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1371	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1584	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1372	req->offset = offset;	1585	req->offs = SvVAL64 (offset);
1373	req->length = length;	1586	req->size = length;
1374		1587
1375	REQ_SEND;	1588	REQ_SEND;
1376	}	1589	}
1377		1590
1378	void	1591	void
1379	aio_stat (fh_or_path,callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1380	SV * fh_or_path
1381	SV * callback
1382	ALIAS:	1593	ALIAS:
1383	aio_stat = REQ_STAT	1594	aio_stat = REQ_STAT
1384	aio_lstat = REQ_LSTAT	1595	aio_lstat = REQ_LSTAT
1385	PPCODE:	1596	PPCODE:
1386	{	1597	{
1387	dREQ;	1598	dREQ;
1388		1599
1389	New (0, req->statdata, 1, Stat_t);	1600	req->ptr2 = malloc (sizeof (Stat_t));
1390	if (!req->statdata)	1601	if (!req->ptr2)
1391	{	1602	{
1392	req_free (req);	1603	req_destroy (req);
1393	croak ("out of memory during aio_req->statdata allocation");	1604	croak ("out of memory during aio_stat statdata allocation");
1394	}	1605	}
		1606
		1607	req->flags |= FLAG_PTR2_FREE;
		1608	req->sv1 = newSVsv (fh_or_path);
1395		1609
1396	if (SvPOK (fh_or_path))	1610	if (SvPOK (fh_or_path))
1397	{	1611	{
1398	req->type = ix;	1612	req->type = ix;
1399	req->data = newSVsv (fh_or_path);
1400	req->dataptr = SvPVbyte_nolen (req->data);	1613	req->ptr1 = SvPVbyte_nolen (req->sv1);
1401	}	1614	}
1402	else	1615	else
1403	{	1616	{
1404	req->type = REQ_FSTAT;	1617	req->type = REQ_FSTAT;
1405	req->fh = newSVsv (fh_or_path);
1406	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1618	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1407	}	1619	}
1408		1620
1409	REQ_SEND;	1621	REQ_SEND;
1410	}	1622	}
1411		1623
1412	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
1413	aio_unlink (pathname,callback=&PL_sv_undef)	1719	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1414	SV * pathname
1415	SV * callback
1416	ALIAS:	1720	ALIAS:
1417	aio_unlink = REQ_UNLINK	1721	aio_unlink = REQ_UNLINK
1418	aio_rmdir = REQ_RMDIR	1722	aio_rmdir = REQ_RMDIR
1419	aio_readdir = REQ_READDIR	1723	aio_readdir = REQ_READDIR
1420	PPCODE:	1724	PPCODE:
1421	{	1725	{
1422	dREQ;	1726	dREQ;
1423		1727
1424	req->type = ix;	1728	req->type = ix;
1425	req->data = newSVsv (pathname);	1729	req->sv1 = newSVsv (pathname);
1426	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;
1427		1740
		1741	req->type = REQ_MKDIR;
		1742	req->sv1 = newSVsv (pathname);
		1743	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1744	req->mode = mode;
		1745
1428	REQ_SEND;	1746	REQ_SEND;
1429	}	1747	}
1430		1748
1431	void	1749	void
1432	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1750	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1433	SV * oldpath
1434	SV * newpath
1435	SV * callback
1436	ALIAS:	1751	ALIAS:
1437	aio_link = REQ_LINK	1752	aio_link = REQ_LINK
1438	aio_symlink = REQ_SYMLINK	1753	aio_symlink = REQ_SYMLINK
1439	aio_rename = REQ_RENAME	1754	aio_rename = REQ_RENAME
1440	PPCODE:	1755	PPCODE:
1441	{	1756	{
1442	dREQ;	1757	dREQ;
1443		1758
1444	req->type = ix;	1759	req->type = ix;
1445	req->fh = newSVsv (oldpath);	1760	req->sv2 = newSVsv (oldpath);
1446	req->data2ptr = SvPVbyte_nolen (req->fh);	1761	req->ptr2 = SvPVbyte_nolen (req->sv2);
1447	req->data = newSVsv (newpath);	1762	req->sv1 = newSVsv (newpath);
1448	req->dataptr = SvPVbyte_nolen (req->data);	1763	req->ptr1 = SvPVbyte_nolen (req->sv1);
1449		1764
1450	REQ_SEND;	1765	REQ_SEND;
1451	}	1766	}
1452		1767
1453	void	1768	void
1454	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1769	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1455	SV * pathname
1456	SV * callback
1457	UV mode
1458	UV dev
1459	PPCODE:	1770	PPCODE:
1460	{	1771	{
1461	dREQ;	1772	dREQ;
1462		1773
1463	req->type = REQ_MKNOD;	1774	req->type = REQ_MKNOD;
1464	req->data = newSVsv (pathname);	1775	req->sv1 = newSVsv (pathname);
1465	req->dataptr = SvPVbyte_nolen (req->data);	1776	req->ptr1 = SvPVbyte_nolen (req->sv1);
1466	req->mode = (mode_t)mode;	1777	req->mode = (mode_t)mode;
1467	req->offset = dev;	1778	req->offs = dev;
1468		1779
1469	REQ_SEND;	1780	REQ_SEND;
1470	}	1781	}
1471		1782
1472	void	1783	void
1473	aio_busy (delay,callback=&PL_sv_undef)	1784	aio_busy (double delay, SV *callback=&PL_sv_undef)
1474	double delay
1475	SV * callback
1476	PPCODE:	1785	PPCODE:
1477	{	1786	{
1478	dREQ;	1787	dREQ;
1479		1788
1480	req->type = REQ_BUSY;	1789	req->type = REQ_BUSY;
1481	req->fd = delay < 0. ? 0 : delay;	1790	req->nv1 = delay < 0. ? 0. : delay;
1482	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1483		1791
1484	REQ_SEND;	1792	REQ_SEND;
1485	}	1793	}
1486		1794
1487	void	1795	void
1488	aio_group (callback=&PL_sv_undef)	1796	aio_group (SV *callback=&PL_sv_undef)
1489	SV * callback
1490	PROTOTYPE: ;$	1797	PROTOTYPE: ;$
1491	PPCODE:	1798	PPCODE:
1492	{	1799	{
1493	dREQ;	1800	dREQ;
1494		1801
1495	req->type = REQ_GROUP;	1802	req->type = REQ_GROUP;
		1803
1496	req_send (req);	1804	req_send (req);
1497
1498	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1805	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1499	}	1806	}
1500		1807
1501	void	1808	void
1502	aio_nop (callback=&PL_sv_undef)	1809	aio_nop (SV *callback=&PL_sv_undef)
1503	SV * callback
1504	PPCODE:	1810	PPCODE:
1505	{	1811	{
1506	dREQ;	1812	dREQ;
1507		1813
1508	req->type = REQ_NOP;	1814	req->type = REQ_NOP;
…		…
1537	PROTOTYPE:	1843	PROTOTYPE:
1538	CODE:	1844	CODE:
1539	while (nreqs)	1845	while (nreqs)
1540	{	1846	{
1541	poll_wait ();	1847	poll_wait ();
1542	poll_cb (0);	1848	poll_cb ();
1543	}	1849	}
1544		1850
1545	void	1851	int
1546	poll()	1852	poll()
1547	PROTOTYPE:	1853	PROTOTYPE:
1548	CODE:	1854	CODE:
1549	if (nreqs)
1550	{
1551	poll_wait ();	1855	poll_wait ();
1552	poll_cb (0);	1856	RETVAL = poll_cb ();
1553	}	1857	OUTPUT:
		1858	RETVAL
1554		1859
1555	int	1860	int
1556	poll_fileno()	1861	poll_fileno()
1557	PROTOTYPE:	1862	PROTOTYPE:
1558	CODE:	1863	CODE:
…		…
1562		1867
1563	int	1868	int
1564	poll_cb(...)	1869	poll_cb(...)
1565	PROTOTYPE:	1870	PROTOTYPE:
1566	CODE:	1871	CODE:
1567	RETVAL = poll_cb (0);	1872	RETVAL = poll_cb ();
1568	OUTPUT:
1569	RETVAL
1570
1571	int
1572	poll_some(int max = 0)
1573	PROTOTYPE: $
1574	CODE:
1575	RETVAL = poll_cb (max);
1576	OUTPUT:	1873	OUTPUT:
1577	RETVAL	1874	RETVAL
1578		1875
1579	void	1876	void
1580	poll_wait()	1877	poll_wait()
1581	PROTOTYPE:	1878	PROTOTYPE:
1582	CODE:	1879	CODE:
1583	if (nreqs)
1584	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	}
1585		1918
1586	int	1919	int
1587	nreqs()	1920	nreqs()
1588	PROTOTYPE:	1921	PROTOTYPE:
1589	CODE:	1922	CODE:
…		…
1605	CODE:	1938	CODE:
1606	RETVAL = get_npending ();	1939	RETVAL = get_npending ();
1607	OUTPUT:	1940	OUTPUT:
1608	RETVAL	1941	RETVAL
1609		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
1610	PROTOTYPES: DISABLE	1953	PROTOTYPES: DISABLE
1611		1954
1612	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1955	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1613		1956
1614	void	1957	void
…		…
1629	PPCODE:	1972	PPCODE:
1630	{	1973	{
1631	int i;	1974	int i;
1632	aio_req req;	1975	aio_req req;
1633		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
1634	if (grp->fd == 2)	1980	if (grp->int1 == 2)
1635	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");
1636		1982
1637	for (i = 1; i < items; ++i )	1983	for (i = 1; i < items; ++i )
1638	{	1984	{
1639	if (GIMME_V != G_VOID)	1985	if (GIMME_V != G_VOID)
…		…
1641		1987
1642	req = SvAIO_REQ (ST (i));	1988	req = SvAIO_REQ (ST (i));
1643		1989
1644	if (req)	1990	if (req)
1645	{	1991	{
1646	++grp->length;	1992	++grp->size;
1647	req->grp = grp;	1993	req->grp = grp;
1648		1994
1649	req->grp_prev = 0;	1995	req->grp_prev = 0;
1650	req->grp_next = grp->grp_first;	1996	req->grp_next = grp->grp_first;
1651		1997
…		…
1674	av = newAV ();	2020	av = newAV ();
1675		2021
1676	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1677	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1678		2024
1679	SvREFCNT_dec (grp->data);	2025	SvREFCNT_dec (grp->sv1);
1680	grp->data = (SV *)av;	2026	grp->sv1 = (SV *)av;
1681	}	2027	}
1682		2028
1683	void	2029	void
1684	errno (aio_req grp, int errorno = errno)	2030	errno (aio_req grp, int errorno = errno)
1685	CODE:	2031	CODE:
1686	grp->errorno = errorno;	2032	grp->errorno = errorno;
1687		2033
1688	void	2034	void
1689	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1690	CODE:	2036	CODE:
1691	grp->fd2 = limit;	2037	grp->int2 = limit;
1692	aio_grp_feed (grp);	2038	aio_grp_feed (grp);
1693		2039
1694	void	2040	void
1695	feed (aio_req grp, SV *callback=&PL_sv_undef)	2041	feed (aio_req grp, SV *callback=&PL_sv_undef)
1696	CODE:	2042	CODE:
1697	{	2043	{
1698	SvREFCNT_dec (grp->fh2);	2044	SvREFCNT_dec (grp->sv2);
1699	grp->fh2 = newSVsv (callback);	2045	grp->sv2 = newSVsv (callback);
1700		2046
1701	if (grp->fd2 <= 0)	2047	if (grp->int2 <= 0)
1702	grp->fd2 = 2;	2048	grp->int2 = 2;
1703		2049
1704	aio_grp_feed (grp);	2050	aio_grp_feed (grp);
1705	}	2051	}
1706		2052

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