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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 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	/* buffer size for various temporary buffers */	90	/* buffer size for various temporary buffers */
67	#define AIO_BUFSIZE 65536	91	#define AIO_BUFSIZE 65536
68		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
69	#define dBUF \	100	#define dBUF \
70	char *aio_buf; \	101	char *aio_buf; \
71	LOCK (wrklock); \	102	X_LOCK (wrklock); \
72	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	103	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
73	UNLOCK (wrklock); \	104	X_UNLOCK (wrklock); \
74	if (!aio_buf) \	105	if (!aio_buf) \
75	return -1;	106	return -1;
		107
		108	typedef SV SV8; /* byte-sv, used for argument-checking */
76		109
77	enum {	110	enum {
78	REQ_QUIT,	111	REQ_QUIT,
79	REQ_OPEN, REQ_CLOSE,	112	REQ_OPEN, REQ_CLOSE,
80	REQ_READ, REQ_WRITE, REQ_READAHEAD,	113	REQ_READ, REQ_WRITE,
81	REQ_SENDFILE,	114	REQ_READAHEAD, REQ_SENDFILE,
82	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,
83	REQ_FSYNC, REQ_FDATASYNC,	120	REQ_FSYNC, REQ_FDATASYNC,
84	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	121	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
85	REQ_READDIR,	122	REQ_MKNOD, REQ_READDIR,
86	REQ_LINK, REQ_SYMLINK,	123	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
87	REQ_GROUP, REQ_NOP,	124	REQ_GROUP, REQ_NOP,
88	REQ_BUSY,	125	REQ_BUSY,
89	};	126	};
90		127
91	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
93		130
94	typedef struct aio_cb	131	typedef struct aio_cb
95	{	132	{
96	struct aio_cb *volatile next;	133	struct aio_cb *volatile next;
97		134
98	SV *data, *callback;	135	SV *callback;
99	SV *fh, *fh2;	136	SV *sv1, *sv2;
100	void *dataptr, *data2ptr;	137	void *ptr1, *ptr2;
101	Stat_t *statdata;
102	off_t offset;	138	off_t offs;
103	size_t length;	139	size_t size;
104	ssize_t result;	140	ssize_t result;
		141	double nv1, nv2;
105		142
106	STRLEN dataoffset;	143	STRLEN stroffset;
107	int type;	144	int type;
108	int fd, fd2;	145	int int1, int2, int3;
109	int errorno;	146	int errorno;
110	mode_t mode; /* open */	147	mode_t mode; /* open */
111		148
112	unsigned char flags;	149	unsigned char flags;
113	unsigned char pri;	150	unsigned char pri;
…		…
115	SV *self; /* the perl counterpart of this request, if any */	152	SV *self; /* the perl counterpart of this request, if any */
116	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	153	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
117	} aio_cb;	154	} aio_cb;
118		155
119	enum {	156	enum {
120	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) */
121	};	160	};
122		161
123	typedef aio_cb *aio_req;	162	typedef aio_cb *aio_req;
124	typedef aio_cb *aio_req_ornot;	163	typedef aio_cb *aio_req_ornot;
125		164
…		…
130	DEFAULT_PRI = 0,	169	DEFAULT_PRI = 0,
131	PRI_BIAS = -PRI_MIN,	170	PRI_BIAS = -PRI_MIN,
132	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	171	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133	};	172	};
134		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
135	static int next_pri = DEFAULT_PRI + PRI_BIAS;	220	static int next_pri = DEFAULT_PRI + PRI_BIAS;
136		221
137	static unsigned int started, wanted;	222	static unsigned int started, idle, wanted;
138	static volatile unsigned int nreqs;
139	static volatile unsigned int max_outstanding = 0xffffffff;
140	static int respipe [2];
141
142	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144	#else
145	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146	#endif
147
148	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150		223
151	/* worker threads management */	224	/* worker threads management */
152	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	225	static mutex_t wrklock = X_MUTEX_INIT;
153		226
154	typedef struct worker {	227	typedef struct worker {
155	/* locked by wrklock */	228	/* locked by wrklock */
156	struct worker *prev, *next;	229	struct worker *prev, *next;
157		230
158	pthread_t tid;	231	thread_t tid;
159		232
160	/* locked by reslock, reqlock or wrklock */	233	/* locked by reslock, reqlock or wrklock */
161	aio_req req; /* currently processed request */	234	aio_req req; /* currently processed request */
162	void *dbuf;	235	void *dbuf;
163	DIR *dirp;	236	DIR *dirp;
…		…
186	wrk->prev->next = wrk->next;	259	wrk->prev->next = wrk->next;
187		260
188	free (wrk);	261	free (wrk);
189	}	262	}
190		263
		264	static volatile unsigned int nreqs, nready, npending;
		265	static volatile unsigned int max_idle = 4;
		266	static volatile unsigned int max_outstanding = 0xffffffff;
		267	static int respipe [2];
		268
191	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	269	static mutex_t reslock = X_MUTEX_INIT;
192	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	270	static mutex_t reqlock = X_MUTEX_INIT;
193	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	271	static cond_t reqwait = X_COND_INIT;
		272
		273	#if WORDACCESS_UNSAFE
		274
		275	static unsigned int get_nready ()
		276	{
		277	unsigned int retval;
		278
		279	X_LOCK (reqlock);
		280	retval = nready;
		281	X_UNLOCK (reqlock);
		282
		283	return retval;
		284	}
		285
		286	static unsigned int get_npending ()
		287	{
		288	unsigned int retval;
		289
		290	X_LOCK (reslock);
		291	retval = npending;
		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);
		304
		305	return retval;
		306	}
		307
		308	#else
		309
		310	# define get_nready() nready
		311	# define get_npending() npending
		312	# define get_nthreads() started
		313
		314	#endif
194		315
195	/*	316	/*
196	* a somewhat faster data structure might be nice, but	317	* a somewhat faster data structure might be nice, but
197	* with 8 priorities this actually needs <20 insns	318	* with 8 priorities this actually needs <20 insns
198	* per shift, the most expensive operation.	319	* per shift, the most expensive operation.
…		…
244	}	365	}
245		366
246	abort ();	367	abort ();
247	}	368	}
248		369
249	static int poll_cb (int max);	370	static int poll_cb ();
250	static void req_invoke (aio_req req);	371	static int req_invoke (aio_req req);
251	static void req_free (aio_req req);	372	static void req_destroy (aio_req req);
252	static void req_cancel (aio_req req);	373	static void req_cancel (aio_req req);
253		374
254	/* must be called at most once */	375	/* must be called at most once */
255	static SV *req_sv (aio_req req, const char *klass)	376	static SV *req_sv (aio_req req, const char *klass)
256	{	377	{
…		…
275	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
276	}	397	}
277		398
278	static void aio_grp_feed (aio_req grp)	399	static void aio_grp_feed (aio_req grp)
279	{	400	{
		401	block_sig ();
		402
280	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	403	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
281	{	404	{
282	int old_len = grp->length;	405	int old_len = grp->size;
283		406
284	if (grp->fh2 && SvOK (grp->fh2))	407	if (grp->sv2 && SvOK (grp->sv2))
285	{	408	{
286	dSP;	409	dSP;
287		410
288	ENTER;	411	ENTER;
289	SAVETMPS;	412	SAVETMPS;
290	PUSHMARK (SP);	413	PUSHMARK (SP);
291	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	414	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
292	PUTBACK;	415	PUTBACK;
293	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	416	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294	SPAGAIN;	417	SPAGAIN;
295	FREETMPS;	418	FREETMPS;
296	LEAVE;	419	LEAVE;
297	}	420	}
298		421
299	/* stop if no progress has been made */	422	/* stop if no progress has been made */
300	if (old_len == grp->length)	423	if (old_len == grp->size)
301	{	424	{
302	SvREFCNT_dec (grp->fh2);	425	SvREFCNT_dec (grp->sv2);
303	grp->fh2 = 0;	426	grp->sv2 = 0;
304	break;	427	break;
305	}	428	}
306	}	429	}
		430
		431	unblock_sig ();
307	}	432	}
308		433
309	static void aio_grp_dec (aio_req grp)	434	static void aio_grp_dec (aio_req grp)
310	{	435	{
311	--grp->length;	436	--grp->size;
312		437
313	/* call feeder, if applicable */	438	/* call feeder, if applicable */
314	aio_grp_feed (grp);	439	aio_grp_feed (grp);
315		440
316	/* finish, if done */	441	/* finish, if done */
317	if (!grp->length && grp->fd)	442	if (!grp->size && grp->int1)
318	{	443	{
		444	block_sig ();
		445
319	req_invoke (grp);	446	if (!req_invoke (grp))
		447	{
		448	req_destroy (grp);
		449	unblock_sig ();
		450	croak (0);
		451	}
		452
320	req_free (grp);	453	req_destroy (grp);
		454	unblock_sig ();
321	}	455	}
322	}	456	}
323		457
324	static void poll_wait ()
325	{
326	fd_set rfd;
327
328	while (nreqs)
329	{
330	int size;
331	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332	LOCK (reslock);
333	#endif
334	size = res_queue.size;
335	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336	UNLOCK (reslock);
337	#endif
338
339	if (size)
340	return;
341
342	FD_ZERO(&rfd);
343	FD_SET(respipe [0], &rfd);
344
345	select (respipe [0] + 1, &rfd, 0, 0, 0);
346	}
347	}
348
349	static void req_invoke (aio_req req)	458	static int req_invoke (aio_req req)
350	{	459	{
351	dSP;	460	dSP;
		461
		462	if (req->flags & FLAG_SV2_RO_OFF)
		463	SvREADONLY_off (req->sv2);
352		464
353	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	465	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
354	{	466	{
355	errno = req->errorno;
356
357	ENTER;	467	ENTER;
358	SAVETMPS;	468	SAVETMPS;
359	PUSHMARK (SP);	469	PUSHMARK (SP);
360	EXTEND (SP, 1);	470	EXTEND (SP, 1);
361		471
…		…
366	SV *rv = &PL_sv_undef;	476	SV *rv = &PL_sv_undef;
367		477
368	if (req->result >= 0)	478	if (req->result >= 0)
369	{	479	{
370	int i;	480	int i;
371	char *buf = req->data2ptr;	481	char *buf = req->ptr2;
372	AV *av = newAV ();	482	AV *av = newAV ();
373		483
374	av_extend (av, req->result - 1);	484	av_extend (av, req->result - 1);
375		485
376	for (i = 0; i < req->result; ++i)	486	for (i = 0; i < req->result; ++i)
…		…
396	PUSHs (sv_2mortal (newSViv (req->result)));	506	PUSHs (sv_2mortal (newSViv (req->result)));
397	PUTBACK;	507	PUTBACK;
398	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	508	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
399	SPAGAIN;	509	SPAGAIN;
400		510
401	fh = SvREFCNT_inc (POPs);	511	fh = POPs;
402
403	PUSHMARK (SP);	512	PUSHMARK (SP);
404	XPUSHs (sv_2mortal (fh));	513	XPUSHs (fh);
405	}	514	}
406	break;	515	break;
407		516
408	case REQ_GROUP:	517	case REQ_GROUP:
409	req->fd = 2; /* mark group as finished */	518	req->int1 = 2; /* mark group as finished */
410		519
411	if (req->data)	520	if (req->sv1)
412	{	521	{
413	int i;	522	int i;
414	AV *av = (AV *)req->data;	523	AV *av = (AV *)req->sv1;
415		524
416	EXTEND (SP, AvFILL (av) + 1);	525	EXTEND (SP, AvFILL (av) + 1);
417	for (i = 0; i <= AvFILL (av); ++i)	526	for (i = 0; i <= AvFILL (av); ++i)
418	PUSHs (*av_fetch (av, i, 0));	527	PUSHs (*av_fetch (av, i, 0));
419	}	528	}
…		…
421		530
422	case REQ_NOP:	531	case REQ_NOP:
423	case REQ_BUSY:	532	case REQ_BUSY:
424	break;	533	break;
425		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
426	default:	559	default:
427	PUSHs (sv_2mortal (newSViv (req->result)));	560	PUSHs (sv_2mortal (newSViv (req->result)));
428	break;	561	break;
429	}	562	}
430		563
		564	errno = req->errorno;
431		565
432	PUTBACK;	566	PUTBACK;
433	call_sv (req->callback, G_VOID | G_EVAL);	567	call_sv (req->callback, G_VOID | G_EVAL);
434	SPAGAIN;	568	SPAGAIN;
435		569
…		…
449	grp->grp_first = req->grp_next;	583	grp->grp_first = req->grp_next;
450		584
451	aio_grp_dec (grp);	585	aio_grp_dec (grp);
452	}	586	}
453		587
454	if (SvTRUE (ERRSV))	588	return !SvTRUE (ERRSV);
455	{
456	req_free (req);
457	croak (0);
458	}
459	}	589	}
460		590
461	static void req_free (aio_req req)	591	static void req_destroy (aio_req req)
462	{	592	{
463	if (req->self)	593	if (req->self)
464	{	594	{
465	sv_unmagic (req->self, PERL_MAGIC_ext);	595	sv_unmagic (req->self, PERL_MAGIC_ext);
466	SvREFCNT_dec (req->self);	596	SvREFCNT_dec (req->self);
467	}	597	}
468		598
469	SvREFCNT_dec (req->data);
470	SvREFCNT_dec (req->fh);	599	SvREFCNT_dec (req->sv1);
471	SvREFCNT_dec (req->fh2);	600	SvREFCNT_dec (req->sv2);
472	SvREFCNT_dec (req->callback);	601	SvREFCNT_dec (req->callback);
473	Safefree (req->statdata);
474		602
475	if (req->type == REQ_READDIR)	603	if (req->flags & FLAG_PTR2_FREE)
476	free (req->data2ptr);	604	free (req->ptr2);
477		605
478	Safefree (req);	606	Safefree (req);
479	}	607	}
480		608
481	static void req_cancel_subs (aio_req grp)	609	static void req_cancel_subs (aio_req grp)
…		…
483	aio_req sub;	611	aio_req sub;
484		612
485	if (grp->type != REQ_GROUP)	613	if (grp->type != REQ_GROUP)
486	return;	614	return;
487		615
488	SvREFCNT_dec (grp->fh2);	616	SvREFCNT_dec (grp->sv2);
489	grp->fh2 = 0;	617	grp->sv2 = 0;
490		618
491	for (sub = grp->grp_first; sub; sub = sub->grp_next)	619	for (sub = grp->grp_first; sub; sub = sub->grp_next)
492	req_cancel (sub);	620	req_cancel (sub);
493	}	621	}
494		622
…		…
497	req->flags |= FLAG_CANCELLED;	625	req->flags |= FLAG_CANCELLED;
498		626
499	req_cancel_subs (req);	627	req_cancel_subs (req);
500	}	628	}
501		629
502	static int poll_cb (int max)	630	X_THREAD_PROC (aio_proc);
503	{
504	dSP;
505	int count = 0;
506	int do_croak = 0;
507	aio_req req;
508
509	for (;;)
510	{
511	while (max <= 0 || count < max)
512	{
513	LOCK (reslock);
514	req = reqq_shift (&res_queue);
515
516	if (req)
517	{
518	if (!res_queue.size)
519	{
520	/* read any signals sent by the worker threads */
521	char buf [32];
522	while (read (respipe [0], buf, 32) == 32)
523	;
524	}
525	}
526
527	UNLOCK (reslock);
528
529	if (!req)
530	break;
531
532	--nreqs;
533
534	if (req->type == REQ_QUIT)
535	--started;
536	else if (req->type == REQ_GROUP && req->length)
537	{
538	req->fd = 1; /* mark request as delayed */
539	continue;
540	}
541	else
542	{
543	if (req->type == REQ_READ)
544	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547	SvREADONLY_off (req->data);
548
549	if (req->statdata)
550	{
551	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552	PL_laststatval = req->result;
553	PL_statcache = *(req->statdata);
554	}
555
556	req_invoke (req);
557
558	count++;
559	}
560
561	req_free (req);
562	}
563
564	if (nreqs <= max_outstanding)
565	break;
566
567	poll_wait ();
568
569	max = 0;
570	}
571
572	return count;
573	}
574
575	static void *aio_proc(void *arg);
576		631
577	static void start_thread (void)	632	static void start_thread (void)
578	{	633	{
579	sigset_t fullsigset, oldsigset;
580	pthread_attr_t attr;
581
582	worker *wrk = calloc (1, sizeof (worker));	634	worker *wrk = calloc (1, sizeof (worker));
583		635
584	if (!wrk)	636	if (!wrk)
585	croak ("unable to allocate worker thread data");	637	croak ("unable to allocate worker thread data");
586		638
587	pthread_attr_init (&attr);
588	pthread_attr_setstacksize (&attr, STACKSIZE);
589	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591	sigfillset (&fullsigset);
592
593	LOCK (wrklock);	639	X_LOCK (wrklock);
594	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595		640
596	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	641	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
597	{	642	{
598	wrk->prev = &wrk_first;	643	wrk->prev = &wrk_first;
599	wrk->next = wrk_first.next;	644	wrk->next = wrk_first.next;
600	wrk_first.next->prev = wrk;	645	wrk_first.next->prev = wrk;
601	wrk_first.next = wrk;	646	wrk_first.next = wrk;
602	++started;	647	++started;
603	}	648	}
604	else	649	else
605	free (wrk);	650	free (wrk);
606		651
607	sigprocmask (SIG_SETMASK, &oldsigset, 0);
608	UNLOCK (wrklock);	652	X_UNLOCK (wrklock);
		653	}
		654
		655	static void maybe_start_thread ()
		656	{
		657	if (get_nthreads () >= wanted)
		658	return;
		659
		660	/* todo: maybe use idle here, but might be less exact */
		661	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		662	return;
		663
		664	start_thread ();
609	}	665	}
610		666
611	static void req_send (aio_req req)	667	static void req_send (aio_req req)
612	{	668	{
613	while (started < wanted && nreqs >= started)	669	block_sig ();
614	start_thread ();
615		670
616	++nreqs;	671	++nreqs;
617		672
618	LOCK (reqlock);	673	X_LOCK (reqlock);
		674	++nready;
619	reqq_push (&req_queue, req);	675	reqq_push (&req_queue, req);
620	pthread_cond_signal (&reqwait);	676	X_COND_SIGNAL (reqwait);
621	UNLOCK (reqlock);	677	X_UNLOCK (reqlock);
		678
		679	unblock_sig ();
		680
		681	maybe_start_thread ();
622	}	682	}
623		683
624	static void end_thread (void)	684	static void end_thread (void)
625	{	685	{
626	aio_req req;	686	aio_req req;
…		…
628	Newz (0, req, 1, aio_cb);	688	Newz (0, req, 1, aio_cb);
629		689
630	req->type = REQ_QUIT;	690	req->type = REQ_QUIT;
631	req->pri = PRI_MAX + PRI_BIAS;	691	req->pri = PRI_MAX + PRI_BIAS;
632		692
633	req_send (req);	693	X_LOCK (reqlock);
		694	reqq_push (&req_queue, req);
		695	X_COND_SIGNAL (reqwait);
		696	X_UNLOCK (reqlock);
		697
		698	X_LOCK (wrklock);
		699	--started;
		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);
634	}	708	}
635		709
636	static void min_parallel (int nthreads)	710	static void min_parallel (int nthreads)
637	{	711	{
638	if (wanted < nthreads)	712	if (wanted < nthreads)
639	wanted = nthreads;	713	wanted = nthreads;
640	}	714	}
641		715
642	static void max_parallel (int nthreads)	716	static void max_parallel (int nthreads)
643	{	717	{
644	int cur = started;
645
646	if (wanted > nthreads)	718	if (wanted > nthreads)
647	wanted = nthreads;	719	wanted = nthreads;
648		720
649	while (cur > wanted)	721	while (started > wanted)
		722	end_thread ();
		723	}
		724
		725	static void poll_wait ()
		726	{
		727	fd_set rfd;
		728
		729	while (nreqs)
650	{	730	{
		731	int size;
		732	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		733	size = res_queue.size;
		734	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		735
		736	if (size)
		737	return;
		738
651	end_thread ();	739	maybe_start_thread ();
652	cur--;	740
		741	FD_ZERO(&rfd);
		742	FD_SET(respipe [0], &rfd);
		743
		744	select (respipe [0] + 1, &rfd, 0, 0, 0);
653	}	745	}
		746	}
654		747
655	while (started > wanted)	748	static int poll_cb ()
		749	{
		750	dSP;
		751	int count = 0;
		752	int maxreqs = max_poll_reqs;
		753	int do_croak = 0;
		754	struct timeval tv_start, tv_now;
		755	aio_req req;
		756
		757	if (max_poll_time)
		758	gettimeofday (&tv_start, 0);
		759
		760	block_sig ();
		761
		762	for (;;)
656	{	763	{
		764	for (;;)
		765	{
		766	maybe_start_thread ();
		767
		768	X_LOCK (reslock);
		769	req = reqq_shift (&res_queue);
		770
		771	if (req)
		772	{
		773	--npending;
		774
		775	if (!res_queue.size)
		776	{
		777	/* read any signals sent by the worker threads */
		778	char buf [4];
		779	while (read (respipe [0], buf, 4) == 4)
		780	;
		781	}
		782	}
		783
		784	X_UNLOCK (reslock);
		785
		786	if (!req)
		787	break;
		788
		789	--nreqs;
		790
		791	if (req->type == REQ_GROUP && req->size)
		792	{
		793	req->int1 = 1; /* mark request as delayed */
		794	continue;
		795	}
		796	else
		797	{
		798	if (!req_invoke (req))
		799	{
		800	req_destroy (req);
		801	unblock_sig ();
		802	croak (0);
		803	}
		804
		805	count++;
		806	}
		807
		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	}
		820	}
		821
		822	if (nreqs <= max_outstanding)
		823	break;
		824
657	poll_wait ();	825	poll_wait ();
658	poll_cb (0);	826
		827	++maxreqs;
659	}	828	}
660	}
661		829
662	static void create_pipe ()	830	unblock_sig ();
663	{	831	return count;
664	if (pipe (respipe))
665	croak ("unable to initialize result pipe");
666
667	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668	croak ("cannot set result pipe to nonblocking mode");
669
670	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671	croak ("cannot set result pipe to nonblocking mode");
672	}	832	}
673		833
674	/*****************************************************************************/	834	/*****************************************************************************/
675	/* work around various missing functions */	835	/* work around various missing functions */
676		836
…		…
681	/*	841	/*
682	* make our pread/pwrite safe against themselves, but not against	842	* make our pread/pwrite safe against themselves, but not against
683	* 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,
684	* but that's your problem, not mine.	844	* but that's your problem, not mine.
685	*/	845	*/
686	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	846	static mutex_t preadwritelock = X_MUTEX_INIT;
687		847
688	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)
689	{	849	{
690	ssize_t res;	850	ssize_t res;
691	off_t ooffset;	851	off_t ooffset;
692		852
693	LOCK (preadwritelock);	853	X_LOCK (preadwritelock);
694	ooffset = lseek (fd, 0, SEEK_CUR);	854	ooffset = lseek (fd, 0, SEEK_CUR);
695	lseek (fd, offset, SEEK_SET);	855	lseek (fd, offset, SEEK_SET);
696	res = read (fd, buf, count);	856	res = read (fd, buf, count);
697	lseek (fd, ooffset, SEEK_SET);	857	lseek (fd, ooffset, SEEK_SET);
698	UNLOCK (preadwritelock);	858	X_UNLOCK (preadwritelock);
699		859
700	return res;	860	return res;
701	}	861	}
702		862
703	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)
704	{	864	{
705	ssize_t res;	865	ssize_t res;
706	off_t ooffset;	866	off_t ooffset;
707		867
708	LOCK (preadwritelock);	868	X_LOCK (preadwritelock);
709	ooffset = lseek (fd, 0, SEEK_CUR);	869	ooffset = lseek (fd, 0, SEEK_CUR);
710	lseek (fd, offset, SEEK_SET);	870	lseek (fd, offset, SEEK_SET);
711	res = write (fd, buf, count);	871	res = write (fd, buf, count);
712	lseek (fd, offset, SEEK_SET);	872	lseek (fd, offset, SEEK_SET);
713	UNLOCK (preadwritelock);	873	X_UNLOCK (preadwritelock);
714		874
715	return res;	875	return res;
716	}	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
717	#endif	905	#endif
718		906
719	#if !HAVE_FDATASYNC	907	#if !HAVE_FDATASYNC
720	# define fdatasync fsync	908	# define fdatasync fsync
721	#endif	909	#endif
…		…
723	#if !HAVE_READAHEAD	911	#if !HAVE_READAHEAD
724	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	912	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725		913
726	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)
727	{	915	{
		916	size_t todo = count;
728	dBUF;	917	dBUF;
729		918
730	while (count > 0)	919	while (todo > 0)
731	{	920	{
732	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	921	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
733		922
734	pread (fd, aio_buf, len, offset);	923	pread (fd, aio_buf, len, offset);
735	offset += len;	924	offset += len;
736	count -= len;	925	todo -= len;
737	}	926	}
738		927
739	errno = 0;	928	errno = 0;
		929	return count;
740	}	930	}
741		931
742	#endif	932	#endif
743		933
744	#if !HAVE_READDIR_R	934	#if !HAVE_READDIR_R
745	# define readdir_r aio_readdir_r	935	# define readdir_r aio_readdir_r
746		936
747	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	937	static mutex_t readdirlock = X_MUTEX_INIT;
748		938
749	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)
750	{	940	{
751	struct dirent *e;	941	X_DIRENT *e;
752	int errorno;	942	int errorno;
753		943
754	LOCK (readdirlock);	944	X_LOCK (readdirlock);
755		945
756	e = readdir (dirp);	946	e = readdir (dirp);
757	errorno = errno;	947	errorno = errno;
758		948
759	if (e)	949	if (e)
…		…
762	strcpy (ent->d_name, e->d_name);	952	strcpy (ent->d_name, e->d_name);
763	}	953	}
764	else	954	else
765	*res = 0;	955	*res = 0;
766		956
767	UNLOCK (readdirlock);	957	X_UNLOCK (readdirlock);
768		958
769	errno = errorno;	959	errno = errorno;
770	return e ? 0 : -1;	960	return e ? 0 : -1;
771	}	961	}
772	#endif	962	#endif
…		…
868	static void scandir_ (aio_req req, worker *self)	1058	static void scandir_ (aio_req req, worker *self)
869	{	1059	{
870	DIR *dirp;	1060	DIR *dirp;
871	union	1061	union
872	{	1062	{
873	struct dirent d;	1063	X_DIRENT d;
874	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1064	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
875	} *u;	1065	} *u;
876	struct dirent *entp;	1066	X_DIRENT *entp;
877	char *name, *names;	1067	char *name, *names;
878	int memlen = 4096;	1068	int memlen = 4096;
879	int memofs = 0;	1069	int memofs = 0;
880	int res = 0;	1070	int res = 0;
881	int errorno;
882		1071
883	LOCK (wrklock);	1072	X_LOCK (wrklock);
884	self->dirp = dirp = opendir (req->dataptr);	1073	self->dirp = dirp = opendir (req->ptr1);
885	self->dbuf = u = malloc (sizeof (*u));	1074	self->dbuf = u = malloc (sizeof (*u));
		1075	req->flags |= FLAG_PTR2_FREE;
886	req->data2ptr = names = malloc (memlen);	1076	req->ptr2 = names = malloc (memlen);
887	UNLOCK (wrklock);	1077	X_UNLOCK (wrklock);
888		1078
889	if (dirp && u && names)	1079	if (dirp && u && names)
890	for (;;)	1080	for (;;)
891	{	1081	{
892	errno = 0;	1082	errno = 0;
…		…
904	res++;	1094	res++;
905		1095
906	while (memofs + len > memlen)	1096	while (memofs + len > memlen)
907	{	1097	{
908	memlen *= 2;	1098	memlen *= 2;
909	LOCK (wrklock);	1099	X_LOCK (wrklock);
910	req->data2ptr = names = realloc (names, memlen);	1100	req->ptr2 = names = realloc (names, memlen);
911	UNLOCK (wrklock);	1101	X_UNLOCK (wrklock);
912		1102
913	if (!names)	1103	if (!names)
914	break;	1104	break;
915	}	1105	}
916		1106
…		…
925	req->result = res;	1115	req->result = res;
926	}	1116	}
927		1117
928	/*****************************************************************************/	1118	/*****************************************************************************/
929		1119
930	static void *aio_proc (void *thr_arg)	1120	X_THREAD_PROC (aio_proc)
931	{	1121	{
		1122	{//D
932	aio_req req;	1123	aio_req req;
933	int type;	1124	struct timespec ts;
934	worker *self = (worker *)thr_arg;	1125	worker *self = (worker *)thr_arg;
935		1126
936	do	1127	/* try to distribute timeouts somewhat randomly */
		1128	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1129
		1130	for (;;)
937	{	1131	{
		1132	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1133
938	LOCK (reqlock);	1134	X_LOCK (reqlock);
939		1135
940	for (;;)	1136	for (;;)
941	{	1137	{
942	self->req = req = reqq_shift (&req_queue);	1138	self->req = req = reqq_shift (&req_queue);
943		1139
944	if (req)	1140	if (req)
945	break;	1141	break;
946		1142
947	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;
948	}	1164	}
949		1165
		1166	--nready;
		1167
950	UNLOCK (reqlock);	1168	X_UNLOCK (reqlock);
951		1169
952	errno = 0; /* strictly unnecessary */	1170	errno = 0; /* strictly unnecessary */
953	type = req->type; /* remember type for QUIT check */
954		1171
955	if (!(req->flags & FLAG_CANCELLED))	1172	if (!(req->flags & FLAG_CANCELLED))
956	switch (type)	1173	switch (req->type)
957	{	1174	{
958	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1175	case REQ_READ: req->result = req->offs >= 0
959	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;
960		1181
961	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;
962	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;
963		1184
964	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;
965	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;
966	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;
967		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
968	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;
969	case REQ_CLOSE: req->result = close (req->fd); break;	1197	case REQ_CLOSE: req->result = close (req->int1); break;
970	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1198	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
971	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;
972	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1201	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
973	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1202	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
974	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1203	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); 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;
975		1206
976	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1207	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
977	case REQ_FSYNC: req->result = fsync (req->fd); break;	1208	case REQ_FSYNC: req->result = fsync (req->int1); break;
978	case REQ_READDIR: scandir_ (req, self); break;	1209	case REQ_READDIR: scandir_ (req, self); break;
979		1210
980	case REQ_BUSY:	1211	case REQ_BUSY:
		1212	#ifdef _WIN32
		1213	Sleep (req->nv1 * 1000.);
		1214	#else
981	{	1215	{
982	struct timeval tv;	1216	struct timeval tv;
983		1217
984	tv.tv_sec = req->fd;	1218	tv.tv_sec = req->nv1;
985	tv.tv_usec = req->fd2;	1219	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
986		1220
987	req->result = select (0, 0, 0, 0, &tv);	1221	req->result = select (0, 0, 0, 0, &tv);
988	}	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);
		1248	}
989		1249
990	case REQ_GROUP:	1250	case REQ_GROUP:
991	case REQ_NOP:	1251	case REQ_NOP:
		1252	break;
		1253
992	case REQ_QUIT:	1254	case REQ_QUIT:
993	break;	1255	goto quit;
994		1256
995	default:	1257	default:
996	req->result = ENOSYS;	1258	req->result = -1;
997	break;	1259	break;
998	}	1260	}
999		1261
1000	req->errorno = errno;	1262	req->errorno = errno;
1001		1263
1002	LOCK (reslock);	1264	X_LOCK (reslock);
		1265
		1266	++npending;
1003		1267
1004	if (!reqq_push (&res_queue, req))	1268	if (!reqq_push (&res_queue, req))
		1269	{
1005	/* write a dummy byte to the pipe so fh becomes ready */	1270	/* write a dummy byte to the pipe so fh becomes ready */
1006	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	}
1007		1277
1008	self->req = 0;	1278	self->req = 0;
1009	worker_clear (self);	1279	worker_clear (self);
1010		1280
1011	UNLOCK (reslock);	1281	X_UNLOCK (reslock);
1012	}	1282	}
1013	while (type != REQ_QUIT);
1014		1283
		1284	quit:
1015	LOCK (wrklock);	1285	X_LOCK (wrklock);
1016	worker_free (self);	1286	worker_free (self);
1017	UNLOCK (wrklock);	1287	X_UNLOCK (wrklock);
1018		1288
1019	return 0;	1289	return 0;
		1290	}//D
1020	}	1291	}
1021		1292
1022	/*****************************************************************************/	1293	/*****************************************************************************/
1023		1294
1024	static void atfork_prepare (void)	1295	static void atfork_prepare (void)
1025	{	1296	{
1026	LOCK (wrklock);	1297	X_LOCK (wrklock);
1027	LOCK (reqlock);	1298	X_LOCK (reqlock);
1028	LOCK (reslock);	1299	X_LOCK (reslock);
1029	#if !HAVE_PREADWRITE	1300	#if !HAVE_PREADWRITE
1030	LOCK (preadwritelock);	1301	X_LOCK (preadwritelock);
1031	#endif	1302	#endif
1032	#if !HAVE_READDIR_R	1303	#if !HAVE_READDIR_R
1033	LOCK (readdirlock);	1304	X_LOCK (readdirlock);
1034	#endif	1305	#endif
1035	}	1306	}
1036		1307
1037	static void atfork_parent (void)	1308	static void atfork_parent (void)
1038	{	1309	{
1039	#if !HAVE_READDIR_R	1310	#if !HAVE_READDIR_R
1040	UNLOCK (readdirlock);	1311	X_UNLOCK (readdirlock);
1041	#endif	1312	#endif
1042	#if !HAVE_PREADWRITE	1313	#if !HAVE_PREADWRITE
1043	UNLOCK (preadwritelock);	1314	X_UNLOCK (preadwritelock);
1044	#endif	1315	#endif
1045	UNLOCK (reslock);	1316	X_UNLOCK (reslock);
1046	UNLOCK (reqlock);	1317	X_UNLOCK (reqlock);
1047	UNLOCK (wrklock);	1318	X_UNLOCK (wrklock);
1048	}	1319	}
1049		1320
1050	static void atfork_child (void)	1321	static void atfork_child (void)
1051	{	1322	{
1052	aio_req prv;	1323	aio_req prv;
1053		1324
1054	while (prv = reqq_shift (&req_queue))	1325	while (prv = reqq_shift (&req_queue))
1055	req_free (prv);	1326	req_destroy (prv);
1056		1327
1057	while (prv = reqq_shift (&res_queue))	1328	while (prv = reqq_shift (&res_queue))
1058	req_free (prv);	1329	req_destroy (prv);
1059		1330
1060	while (wrk_first.next != &wrk_first)	1331	while (wrk_first.next != &wrk_first)
1061	{	1332	{
1062	worker *wrk = wrk_first.next;	1333	worker *wrk = wrk_first.next;
1063		1334
1064	if (wrk->req)	1335	if (wrk->req)
1065	req_free (wrk->req);	1336	req_destroy (wrk->req);
1066		1337
1067	worker_clear (wrk);	1338	worker_clear (wrk);
1068	worker_free (wrk);	1339	worker_free (wrk);
1069	}	1340	}
1070		1341
1071	started = 0;	1342	started = 0;
		1343	idle = 0;
1072	nreqs = 0;	1344	nreqs = 0;
		1345	nready = 0;
		1346	npending = 0;
1073		1347
1074	close (respipe [0]);	1348	close (respipe [0]);
1075	close (respipe [1]);	1349	close (respipe [1]);
1076	create_pipe ();	1350
		1351	if (!create_pipe (respipe))
		1352	croak ("cannot set result pipe to nonblocking mode");
1077		1353
1078	atfork_parent ();	1354	atfork_parent ();
1079	}	1355	}
1080		1356
1081	#define dREQ \	1357	#define dREQ \
…		…
1104	PROTOTYPES: ENABLE	1380	PROTOTYPES: ENABLE
1105		1381
1106	BOOT:	1382	BOOT:
1107	{	1383	{
1108	HV *stash = gv_stashpv ("IO::AIO", 1);	1384	HV *stash = gv_stashpv ("IO::AIO", 1);
		1385
1109	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1386	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1110	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1387	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1111	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1388	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1389	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		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
		1399	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1400	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1401	#endif
1112		1402
1113	create_pipe ();	1403	if (!create_pipe (respipe))
		1404	croak ("cannot set result pipe to nonblocking mode");
		1405
1114	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1406	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1115	}	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;
1116		1420
1117	void	1421	void
1118	min_parallel (int nthreads)	1422	min_parallel (int nthreads)
1119	PROTOTYPE: $	1423	PROTOTYPE: $
1120		1424
1121	void	1425	void
1122	max_parallel (int nthreads)	1426	max_parallel (int nthreads)
1123	PROTOTYPE: $	1427	PROTOTYPE: $
		1428
		1429	void
		1430	max_idle (int nthreads)
		1431	PROTOTYPE: $
		1432	CODE:
		1433	set_max_idle (nthreads);
1124		1434
1125	int	1435	int
1126	max_outstanding (int maxreqs)	1436	max_outstanding (int maxreqs)
1127	PROTOTYPE: $	1437	PROTOTYPE: $
1128	CODE:	1438	CODE:
…		…
1130	max_outstanding = maxreqs;	1440	max_outstanding = maxreqs;
1131	OUTPUT:	1441	OUTPUT:
1132	RETVAL	1442	RETVAL
1133		1443
1134	void	1444	void
1135	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1445	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1136	SV * pathname
1137	int flags
1138	int mode
1139	SV * callback
1140	PROTOTYPE: $$$;$	1446	PROTOTYPE: $$$;$
1141	PPCODE:	1447	PPCODE:
1142	{	1448	{
1143	dREQ;	1449	dREQ;
1144		1450
1145	req->type = REQ_OPEN;	1451	req->type = REQ_OPEN;
1146	req->data = newSVsv (pathname);	1452	req->sv1 = newSVsv (pathname);
1147	req->dataptr = SvPVbyte_nolen (req->data);	1453	req->ptr1 = SvPVbyte_nolen (req->sv1);
1148	req->fd = flags;	1454	req->int1 = flags;
1149	req->mode = mode;	1455	req->mode = mode;
1150		1456
1151	REQ_SEND;	1457	REQ_SEND;
1152	}	1458	}
1153		1459
1154	void	1460	void
1155	aio_close (fh,callback=&PL_sv_undef)	1461	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1156	SV * fh
1157	SV * callback
1158	PROTOTYPE: $;$	1462	PROTOTYPE: $;$
1159	ALIAS:	1463	ALIAS:
1160	aio_close = REQ_CLOSE	1464	aio_close = REQ_CLOSE
1161	aio_fsync = REQ_FSYNC	1465	aio_fsync = REQ_FSYNC
1162	aio_fdatasync = REQ_FDATASYNC	1466	aio_fdatasync = REQ_FDATASYNC
1163	PPCODE:	1467	PPCODE:
1164	{	1468	{
1165	dREQ;	1469	dREQ;
1166		1470
1167	req->type = ix;	1471	req->type = ix;
1168	req->fh = newSVsv (fh);	1472	req->sv1 = newSVsv (fh);
1169	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1473	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1170		1474
1171	REQ_SEND (req);	1475	REQ_SEND (req);
1172	}	1476	}
1173		1477
1174	void	1478	void
1175	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)
1176	SV * fh
1177	UV offset
1178	UV length
1179	SV * data
1180	UV dataoffset
1181	SV * callback
1182	ALIAS:	1480	ALIAS:
1183	aio_read = REQ_READ	1481	aio_read = REQ_READ
1184	aio_write = REQ_WRITE	1482	aio_write = REQ_WRITE
1185	PROTOTYPE: $$$$$;$	1483	PROTOTYPE: $$$$$;$
1186	PPCODE:	1484	PPCODE:
1187	{	1485	{
1188	aio_req req;
1189	STRLEN svlen;	1486	STRLEN svlen;
1190	char *svptr = SvPVbyte (data, svlen);	1487	char *svptr = SvPVbyte (data, svlen);
		1488	UV len = SvUV (length);
1191		1489
1192	SvUPGRADE (data, SVt_PV);	1490	SvUPGRADE (data, SVt_PV);
1193	SvPOK_on (data);	1491	SvPOK_on (data);
1194		1492
1195	if (dataoffset < 0)	1493	if (dataoffset < 0)
1196	dataoffset += svlen;	1494	dataoffset += svlen;
1197		1495
1198	if (dataoffset < 0 || dataoffset > svlen)	1496	if (dataoffset < 0 || dataoffset > svlen)
1199	croak ("data offset outside of string");	1497	croak ("dataoffset outside of data scalar");
1200		1498
1201	if (ix == REQ_WRITE)	1499	if (ix == REQ_WRITE)
1202	{	1500	{
1203	/* write: check length and adjust. */	1501	/* write: check length and adjust. */
1204	if (length < 0 || length + dataoffset > svlen)	1502	if (!SvOK (length) || len + dataoffset > svlen)
1205	length = svlen - dataoffset;	1503	len = svlen - dataoffset;
1206	}	1504	}
1207	else	1505	else
1208	{	1506	{
1209	/* read: grow scalar as necessary */	1507	/* read: grow scalar as necessary */
1210	svptr = SvGROW (data, length + dataoffset);	1508	svptr = SvGROW (data, len + dataoffset + 1);
1211	}	1509	}
1212		1510
1213	if (length < 0)	1511	if (len < 0)
1214	croak ("length must not be negative");	1512	croak ("length must not be negative");
1215		1513
1216	{	1514	{
1217	dREQ;	1515	dREQ;
1218		1516
1219	req->type = ix;	1517	req->type = ix;
1220	req->fh = newSVsv (fh);	1518	req->sv1 = newSVsv (fh);
1221	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1519	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1222	: IoOFP (sv_2io (fh)));	1520	: IoOFP (sv_2io (fh)));
		1521	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223	req->offset = offset;	1522	req->size = len;
1224	req->length = length;
1225	req->data = SvREFCNT_inc (data);	1523	req->sv2 = SvREFCNT_inc (data);
1226	req->dataptr = (char *)svptr + dataoffset;	1524	req->ptr1 = (char *)svptr + dataoffset;
		1525	req->stroffset = dataoffset;
1227		1526
1228	if (!SvREADONLY (data))	1527	if (!SvREADONLY (data))
1229	{	1528	{
1230	SvREADONLY_on (data);	1529	SvREADONLY_on (data);
1231	req->data2ptr = (void *)data;	1530	req->flags |= FLAG_SV2_RO_OFF;
1232	}	1531	}
1233		1532
1234	REQ_SEND;	1533	REQ_SEND;
1235	}	1534	}
1236	}	1535	}
1237		1536
1238	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
1239	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)
1240	SV * out_fh
1241	SV * in_fh
1242	UV in_offset
1243	UV length
1244	SV * callback
1245	PROTOTYPE: $$$$;$	1559	PROTOTYPE: $$$$;$
1246	PPCODE:	1560	PPCODE:
1247	{	1561	{
1248	dREQ;	1562	dREQ;
1249		1563
1250	req->type = REQ_SENDFILE;	1564	req->type = REQ_SENDFILE;
1251	req->fh = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1252	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1253	req->fh2 = newSVsv (in_fh);	1567	req->sv2 = newSVsv (in_fh);
1254	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1568	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1255	req->offset = in_offset;	1569	req->offs = SvVAL64 (in_offset);
1256	req->length = length;	1570	req->size = length;
1257		1571
1258	REQ_SEND;	1572	REQ_SEND;
1259	}	1573	}
1260		1574
1261	void	1575	void
1262	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1263	SV * fh
1264	UV offset
1265	IV length
1266	SV * callback
1267	PROTOTYPE: $$$;$	1577	PROTOTYPE: $$$;$
1268	PPCODE:	1578	PPCODE:
1269	{	1579	{
1270	dREQ;	1580	dREQ;
1271		1581
1272	req->type = REQ_READAHEAD;	1582	req->type = REQ_READAHEAD;
1273	req->fh = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1274	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1584	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1275	req->offset = offset;	1585	req->offs = SvVAL64 (offset);
1276	req->length = length;	1586	req->size = length;
1277		1587
1278	REQ_SEND;	1588	REQ_SEND;
1279	}	1589	}
1280		1590
1281	void	1591	void
1282	aio_stat (fh_or_path,callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1283	SV * fh_or_path
1284	SV * callback
1285	ALIAS:	1593	ALIAS:
1286	aio_stat = REQ_STAT	1594	aio_stat = REQ_STAT
1287	aio_lstat = REQ_LSTAT	1595	aio_lstat = REQ_LSTAT
1288	PPCODE:	1596	PPCODE:
1289	{	1597	{
1290	dREQ;	1598	dREQ;
1291		1599
1292	New (0, req->statdata, 1, Stat_t);	1600	req->ptr2 = malloc (sizeof (Stat_t));
1293	if (!req->statdata)	1601	if (!req->ptr2)
1294	{	1602	{
1295	req_free (req);	1603	req_destroy (req);
1296	croak ("out of memory during aio_req->statdata allocation");	1604	croak ("out of memory during aio_stat statdata allocation");
1297	}	1605	}
		1606
		1607	req->flags |= FLAG_PTR2_FREE;
		1608	req->sv1 = newSVsv (fh_or_path);
1298		1609
1299	if (SvPOK (fh_or_path))	1610	if (SvPOK (fh_or_path))
1300	{	1611	{
1301	req->type = ix;	1612	req->type = ix;
1302	req->data = newSVsv (fh_or_path);
1303	req->dataptr = SvPVbyte_nolen (req->data);	1613	req->ptr1 = SvPVbyte_nolen (req->sv1);
1304	}	1614	}
1305	else	1615	else
1306	{	1616	{
1307	req->type = REQ_FSTAT;	1617	req->type = REQ_FSTAT;
1308	req->fh = newSVsv (fh_or_path);
1309	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1618	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1310	}	1619	}
1311		1620
1312	REQ_SEND;	1621	REQ_SEND;
1313	}	1622	}
1314		1623
1315	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
1316	aio_unlink (pathname,callback=&PL_sv_undef)	1719	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1317	SV * pathname
1318	SV * callback
1319	ALIAS:	1720	ALIAS:
1320	aio_unlink = REQ_UNLINK	1721	aio_unlink = REQ_UNLINK
1321	aio_rmdir = REQ_RMDIR	1722	aio_rmdir = REQ_RMDIR
1322	aio_readdir = REQ_READDIR	1723	aio_readdir = REQ_READDIR
1323	PPCODE:	1724	PPCODE:
1324	{	1725	{
1325	dREQ;	1726	dREQ;
1326		1727
1327	req->type = ix;	1728	req->type = ix;
1328	req->data = newSVsv (pathname);	1729	req->sv1 = newSVsv (pathname);
1329	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;
1330		1740
		1741	req->type = REQ_MKDIR;
		1742	req->sv1 = newSVsv (pathname);
		1743	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1744	req->mode = mode;
		1745
1331	REQ_SEND;	1746	REQ_SEND;
1332	}	1747	}
1333		1748
1334	void	1749	void
1335	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1750	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1336	SV * oldpath
1337	SV * newpath
1338	SV * callback
1339	ALIAS:	1751	ALIAS:
1340	aio_link = REQ_LINK	1752	aio_link = REQ_LINK
1341	aio_symlink = REQ_SYMLINK	1753	aio_symlink = REQ_SYMLINK
1342	aio_rename = REQ_RENAME	1754	aio_rename = REQ_RENAME
1343	PPCODE:	1755	PPCODE:
1344	{	1756	{
1345	dREQ;	1757	dREQ;
1346		1758
1347	req->type = ix;	1759	req->type = ix;
1348	req->fh = newSVsv (oldpath);	1760	req->sv2 = newSVsv (oldpath);
1349	req->data2ptr = SvPVbyte_nolen (req->fh);	1761	req->ptr2 = SvPVbyte_nolen (req->sv2);
1350	req->data = newSVsv (newpath);	1762	req->sv1 = newSVsv (newpath);
1351	req->dataptr = SvPVbyte_nolen (req->data);	1763	req->ptr1 = SvPVbyte_nolen (req->sv1);
1352		1764
1353	REQ_SEND;	1765	REQ_SEND;
1354	}	1766	}
1355		1767
1356	void	1768	void
1357	aio_busy (delay,callback=&PL_sv_undef)	1769	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1358	double delay
1359	SV * callback
1360	PPCODE:	1770	PPCODE:
1361	{	1771	{
1362	dREQ;	1772	dREQ;
		1773
		1774	req->type = REQ_MKNOD;
		1775	req->sv1 = newSVsv (pathname);
		1776	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1777	req->mode = (mode_t)mode;
		1778	req->offs = dev;
		1779
		1780	REQ_SEND;
		1781	}
		1782
		1783	void
		1784	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1785	PPCODE:
		1786	{
		1787	dREQ;
1363		1788
1364	req->type = REQ_BUSY;	1789	req->type = REQ_BUSY;
1365	req->fd = delay < 0. ? 0 : delay;	1790	req->nv1 = delay < 0. ? 0. : delay;
1366	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1367		1791
1368	REQ_SEND;	1792	REQ_SEND;
1369	}	1793	}
1370		1794
1371	void	1795	void
1372	aio_group (callback=&PL_sv_undef)	1796	aio_group (SV *callback=&PL_sv_undef)
1373	SV * callback
1374	PROTOTYPE: ;$	1797	PROTOTYPE: ;$
1375	PPCODE:	1798	PPCODE:
1376	{	1799	{
1377	dREQ;	1800	dREQ;
1378		1801
1379	req->type = REQ_GROUP;	1802	req->type = REQ_GROUP;
		1803
1380	req_send (req);	1804	req_send (req);
1381
1382	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1805	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1383	}	1806	}
1384		1807
1385	void	1808	void
1386	aio_nop (callback=&PL_sv_undef)	1809	aio_nop (SV *callback=&PL_sv_undef)
1387	SV * callback
1388	PPCODE:	1810	PPCODE:
1389	{	1811	{
1390	dREQ;	1812	dREQ;
1391		1813
1392	req->type = REQ_NOP;	1814	req->type = REQ_NOP;
1393		1815
1394	REQ_SEND;	1816	REQ_SEND;
1395	}	1817	}
1396		1818
1397	void	1819	int
1398	aioreq_pri (int pri = DEFAULT_PRI)	1820	aioreq_pri (int pri = 0)
1399	CODE:	1821	PROTOTYPE: ;$
		1822	CODE:
		1823	RETVAL = next_pri - PRI_BIAS;
		1824	if (items > 0)
		1825	{
1400	if (pri < PRI_MIN) pri = PRI_MIN;	1826	if (pri < PRI_MIN) pri = PRI_MIN;
1401	if (pri > PRI_MAX) pri = PRI_MAX;	1827	if (pri > PRI_MAX) pri = PRI_MAX;
1402	next_pri = pri + PRI_BIAS;	1828	next_pri = pri + PRI_BIAS;
		1829	}
		1830	OUTPUT:
		1831	RETVAL
1403		1832
1404	void	1833	void
1405	aioreq_nice (int nice = 0)	1834	aioreq_nice (int nice = 0)
1406	CODE:	1835	CODE:
1407	nice = next_pri - nice;	1836	nice = next_pri - nice;
1408	if (nice < PRI_MIN) nice = PRI_MIN;	1837	if (nice < PRI_MIN) nice = PRI_MIN;
1409	if (nice > PRI_MAX) nice = PRI_MAX;	1838	if (nice > PRI_MAX) nice = PRI_MAX;
1410	next_pri = nice + PRI_BIAS;	1839	next_pri = nice + PRI_BIAS;
1411		1840
1412	void	1841	void
1413	flush ()	1842	flush ()
1414	PROTOTYPE:	1843	PROTOTYPE:
1415	CODE:	1844	CODE:
1416	while (nreqs)	1845	while (nreqs)
1417	{	1846	{
1418	poll_wait ();	1847	poll_wait ();
1419	poll_cb (0);	1848	poll_cb ();
1420	}	1849	}
1421		1850
1422	void	1851	int
1423	poll()	1852	poll()
1424	PROTOTYPE:	1853	PROTOTYPE:
1425	CODE:	1854	CODE:
1426	if (nreqs)
1427	{
1428	poll_wait ();	1855	poll_wait ();
1429	poll_cb (0);	1856	RETVAL = poll_cb ();
1430	}	1857	OUTPUT:
		1858	RETVAL
1431		1859
1432	int	1860	int
1433	poll_fileno()	1861	poll_fileno()
1434	PROTOTYPE:	1862	PROTOTYPE:
1435	CODE:	1863	CODE:
…		…
1439		1867
1440	int	1868	int
1441	poll_cb(...)	1869	poll_cb(...)
1442	PROTOTYPE:	1870	PROTOTYPE:
1443	CODE:	1871	CODE:
1444	RETVAL = poll_cb (0);	1872	RETVAL = poll_cb ();
1445	OUTPUT:
1446	RETVAL
1447
1448	int
1449	poll_some(int max = 0)
1450	PROTOTYPE: $
1451	CODE:
1452	RETVAL = poll_cb (max);
1453	OUTPUT:	1873	OUTPUT:
1454	RETVAL	1874	RETVAL
1455		1875
1456	void	1876	void
1457	poll_wait()	1877	poll_wait()
1458	PROTOTYPE:	1878	PROTOTYPE:
1459	CODE:	1879	CODE:
1460	if (nreqs)
1461	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	}
1462		1918
1463	int	1919	int
1464	nreqs()	1920	nreqs()
1465	PROTOTYPE:	1921	PROTOTYPE:
1466	CODE:	1922	CODE:
1467	RETVAL = nreqs;	1923	RETVAL = nreqs;
1468	OUTPUT:	1924	OUTPUT:
1469	RETVAL	1925	RETVAL
1470		1926
		1927	int
		1928	nready()
		1929	PROTOTYPE:
		1930	CODE:
		1931	RETVAL = get_nready ();
		1932	OUTPUT:
		1933	RETVAL
		1934
		1935	int
		1936	npending()
		1937	PROTOTYPE:
		1938	CODE:
		1939	RETVAL = get_npending ();
		1940	OUTPUT:
		1941	RETVAL
		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
1471	PROTOTYPES: DISABLE	1953	PROTOTYPES: DISABLE
1472		1954
1473	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1955	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474		1956
1475	void	1957	void
…		…
1490	PPCODE:	1972	PPCODE:
1491	{	1973	{
1492	int i;	1974	int i;
1493	aio_req req;	1975	aio_req req;
1494		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
1495	if (grp->fd == 2)	1980	if (grp->int1 == 2)
1496	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");
1497		1982
1498	for (i = 1; i < items; ++i )	1983	for (i = 1; i < items; ++i )
1499	{	1984	{
1500	if (GIMME_V != G_VOID)	1985	if (GIMME_V != G_VOID)
…		…
1502		1987
1503	req = SvAIO_REQ (ST (i));	1988	req = SvAIO_REQ (ST (i));
1504		1989
1505	if (req)	1990	if (req)
1506	{	1991	{
1507	++grp->length;	1992	++grp->size;
1508	req->grp = grp;	1993	req->grp = grp;
1509		1994
1510	req->grp_prev = 0;	1995	req->grp_prev = 0;
1511	req->grp_next = grp->grp_first;	1996	req->grp_next = grp->grp_first;
1512		1997
…		…
1526	void	2011	void
1527	result (aio_req grp, ...)	2012	result (aio_req grp, ...)
1528	CODE:	2013	CODE:
1529	{	2014	{
1530	int i;	2015	int i;
		2016	AV *av;
		2017
		2018	grp->errorno = errno;
		2019
1531	AV *av = newAV ();	2020	av = newAV ();
1532		2021
1533	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1534	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1535		2024
1536	SvREFCNT_dec (grp->data);	2025	SvREFCNT_dec (grp->sv1);
1537	grp->data = (SV *)av;	2026	grp->sv1 = (SV *)av;
1538	}	2027	}
		2028
		2029	void
		2030	errno (aio_req grp, int errorno = errno)
		2031	CODE:
		2032	grp->errorno = errorno;
1539		2033
1540	void	2034	void
1541	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1542	CODE:	2036	CODE:
1543	grp->fd2 = limit;	2037	grp->int2 = limit;
1544	aio_grp_feed (grp);	2038	aio_grp_feed (grp);
1545		2039
1546	void	2040	void
1547	feed (aio_req grp, SV *callback=&PL_sv_undef)	2041	feed (aio_req grp, SV *callback=&PL_sv_undef)
1548	CODE:	2042	CODE:
1549	{	2043	{
1550	SvREFCNT_dec (grp->fh2);	2044	SvREFCNT_dec (grp->sv2);
1551	grp->fh2 = newSVsv (callback);	2045	grp->sv2 = newSVsv (callback);
1552		2046
1553	if (grp->fd2 <= 0)	2047	if (grp->int2 <= 0)
1554	grp->fd2 = 2;	2048	grp->int2 = 2;
1555		2049
1556	aio_grp_feed (grp);	2050	aio_grp_feed (grp);
1557	}	2051	}
1558		2052

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