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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.77 by root, Thu Oct 26 13:25:40 2006 UTC vs.
Revision 1.107 by root, Wed Oct 3 21:27:51 2007 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include "autoconf/config.h"
18
19	#include <pthread.h>
20
21	#include <stddef.h>	9	#include <stddef.h>
		10	#include <stdlib.h>
22	#include <errno.h>	11	#include <errno.h>
23	#include <sys/time.h>
24	#include <sys/select.h>
25	#include <sys/types.h>	12	#include <sys/types.h>
26	#include <sys/stat.h>	13	#include <sys/stat.h>
27	#include <limits.h>	14	#include <limits.h>
28	#include <unistd.h>
29	#include <fcntl.h>	15	#include <fcntl.h>
30	#include <signal.h>
31	#include <sched.h>	16	#include <sched.h>
		17
		18	#ifdef _WIN32
		19
		20	# define SIGIO 0
		21	typedef Direntry_t X_DIRENT;
		22	#undef malloc
		23	#undef free
		24
		25	// perl overrides all those nice win32 functions
		26	# undef open
		27	# undef read
		28	# undef write
		29	# undef send
		30	# undef recv
		31	# undef stat
		32	# undef fstat
		33	# define lstat stat
		34	# undef truncate
		35	# undef ftruncate
		36	# undef open
		37	# undef close
		38	# undef unlink
		39	# undef rmdir
		40	# undef rename
		41	# undef lseek
		42
		43	# define chown(a,b,c) (errno = ENOSYS, -1)
		44	# define fchown(a,b,c) (errno = ENOSYS, -1)
		45	# define fchmod(a,b) (errno = ENOSYS, -1)
		46	# define symlink(a,b) (errno = ENOSYS, -1)
		47	# define readlink(a,b,c) (errno = ENOSYS, -1)
		48	# define mknod(a,b,c) (errno = ENOSYS, -1)
		49	# define truncate(a,b) (errno = ENOSYS, -1)
		50	# define ftruncate(fd,o) chsize ((fd), (o))
		51	# define fsync(fd) _commit (fd)
		52	# define opendir(fd) (errno = ENOSYS, 0)
		53	# define readdir(fd) (errno = ENOSYS, -1)
		54	# define closedir(fd) (errno = ENOSYS, -1)
		55	# define mkdir(a,b) mkdir (a)
		56
		57	#else
		58
		59	# include "autoconf/config.h"
		60	# include <sys/time.h>
		61	# include <sys/select.h>
		62	# include <unistd.h>
		63	# include <utime.h>
		64	# include <signal.h>
		65	typedef struct dirent X_DIRENT;
		66
		67	#endif
32		68
33	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
34	# if __linux	70	# if __linux
35	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
36	# elif __freebsd	72	# elif __freebsd
…		…
43	# else	79	# else
44	# error sendfile support requested but not available	80	# error sendfile support requested but not available
45	# endif	81	# endif
46	#endif	82	#endif
47		83
		84	/* number of seconds after which idle threads exit */
		85	#define IDLE_TIMEOUT 10
		86
48	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
49	#ifndef NAME_MAX	88	#ifndef NAME_MAX
50	# define NAME_MAX 4096	89	# define NAME_MAX 4096
51	#endif	90	#endif
52		91
53	#ifndef PTHREAD_STACK_MIN
54	/* care for broken platforms, e.g. windows */
55	# define PTHREAD_STACK_MIN 16384
56	#endif
57
58	#if __ia64
59	# define STACKSIZE 65536
60	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61	# define STACKSIZE PTHREAD_STACK_MIN
62	#else
63	# define STACKSIZE 16384
64	#endif
65
66	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
67	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
68		94
		95	/* use NV for 32 bit perls as it allows larger offsets */
		96	#if IVSIZE >= 8
		97	# define SvVAL64 SvIV
		98	#else
		99	# define SvVAL64 SvNV
		100	#endif
		101
		102	static HV *stash;
		103
69	#define dBUF \	104	#define dBUF \
70	char *aio_buf; \	105	char *aio_buf; \
71	LOCK (wrklock); \	106	X_LOCK (wrklock); \
72	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
73	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
74	if (!aio_buf) \	109	if (!aio_buf) \
75	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
76		113
77	enum {	114	enum {
78	REQ_QUIT,	115	REQ_QUIT,
79	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
80	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
81	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
82	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	119	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		120	REQ_TRUNCATE, REQ_FTRUNCATE,
		121	REQ_UTIME, REQ_FUTIME,
		122	REQ_CHMOD, REQ_FCHMOD,
		123	REQ_CHOWN, REQ_FCHOWN,
83	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_FSYNC, REQ_FDATASYNC,
84	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
85	REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
86	REQ_LINK, REQ_SYMLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
87	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
88	REQ_BUSY,	129	REQ_BUSY,
89	};	130	};
90		131
91	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
93		134
94	typedef struct aio_cb	135	typedef struct aio_cb
95	{	136	{
96	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
97		138
98	SV *data, *callback;	139	SV *callback;
99	SV *fh, *fh2;	140	SV *sv1, *sv2;
100	void *dataptr, *data2ptr;	141	void *ptr1, *ptr2;
101	Stat_t *statdata;
102	off_t offset;	142	off_t offs;
103	size_t length;	143	size_t size;
104	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
105		146
106	STRLEN dataoffset;	147	STRLEN stroffset;
107	int type;	148	int type;
108	int fd, fd2;	149	int int1, int2, int3;
109	int errorno;	150	int errorno;
110	mode_t mode; /* open */	151	mode_t mode; /* open */
111		152
112	unsigned char flags;	153	unsigned char flags;
113	unsigned char pri;	154	unsigned char pri;
…		…
115	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
116	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
117	} aio_cb;	158	} aio_cb;
118		159
119	enum {	160	enum {
120	FLAG_CANCELLED = 0x01,	161	FLAG_CANCELLED = 0x01, /* request was cancelled */
		162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
121	};	164	};
122		165
123	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
124	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
125		168
…		…
130	DEFAULT_PRI = 0,	173	DEFAULT_PRI = 0,
131	PRI_BIAS = -PRI_MIN,	174	PRI_BIAS = -PRI_MIN,
132	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	175	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133	};	176	};
134		177
		178	#define AIO_TICKS ((1000000 + 1023) >> 10)
		179
		180	static unsigned int max_poll_time = 0;
		181	static unsigned int max_poll_reqs = 0;
		182
		183	/* calculcate time difference in ~1/AIO_TICKS of a second */
		184	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		185	{
		186	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		187	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		188	}
		189
		190	static thread_t main_tid;
		191	static int main_sig;
		192	static int block_sig_level;
		193
		194	void block_sig ()
		195	{
		196	sigset_t ss;
		197
		198	if (block_sig_level++)
		199	return;
		200
		201	if (!main_sig)
		202	return;
		203
		204	sigemptyset (&ss);
		205	sigaddset (&ss, main_sig);
		206	pthread_sigmask (SIG_BLOCK, &ss, 0);
		207	}
		208
		209	void unblock_sig ()
		210	{
		211	sigset_t ss;
		212
		213	if (--block_sig_level)
		214	return;
		215
		216	if (!main_sig)
		217	return;
		218
		219	sigemptyset (&ss);
		220	sigaddset (&ss, main_sig);
		221	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		222	}
		223
135	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
136		225
137	static int started, wanted;	226	static unsigned int started, idle, wanted;
138	static volatile int nreqs;
139	static int respipe [2];
140
141	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143	#else
144	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145	#endif
146
147	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149		227
150	/* worker threads management */	228	/* worker threads management */
151	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
152		230
153	typedef struct worker {	231	typedef struct worker {
154	/* locked by wrklock */	232	/* locked by wrklock */
155	struct worker *prev, *next;	233	struct worker *prev, *next;
156		234
157	pthread_t tid;	235	thread_t tid;
158		236
159	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
160	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
161	void *dbuf;	239	void *dbuf;
162	DIR *dirp;	240	DIR *dirp;
…		…
185	wrk->prev->next = wrk->next;	263	wrk->prev->next = wrk->next;
186		264
187	free (wrk);	265	free (wrk);
188	}	266	}
189		267
		268	static volatile unsigned int nreqs, nready, npending;
		269	static volatile unsigned int max_idle = 4;
		270	static volatile unsigned int max_outstanding = 0xffffffff;
		271	static int respipe_osf [2], respipe [2] = { -1, -1 };
		272
190	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
191	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
192	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
		276
		277	#if WORDACCESS_UNSAFE
		278
		279	static unsigned int get_nready ()
		280	{
		281	unsigned int retval;
		282
		283	X_LOCK (reqlock);
		284	retval = nready;
		285	X_UNLOCK (reqlock);
		286
		287	return retval;
		288	}
		289
		290	static unsigned int get_npending ()
		291	{
		292	unsigned int retval;
		293
		294	X_LOCK (reslock);
		295	retval = npending;
		296	X_UNLOCK (reslock);
		297
		298	return retval;
		299	}
		300
		301	static unsigned int get_nthreads ()
		302	{
		303	unsigned int retval;
		304
		305	X_LOCK (wrklock);
		306	retval = started;
		307	X_UNLOCK (wrklock);
		308
		309	return retval;
		310	}
		311
		312	#else
		313
		314	# define get_nready() nready
		315	# define get_npending() npending
		316	# define get_nthreads() started
		317
		318	#endif
193		319
194	/*	320	/*
195	* a somewhat faster data structure might be nice, but	321	* a somewhat faster data structure might be nice, but
196	* with 8 priorities this actually needs <20 insns	322	* with 8 priorities this actually needs <20 insns
197	* per shift, the most expensive operation.	323	* per shift, the most expensive operation.
…		…
243	}	369	}
244		370
245	abort ();	371	abort ();
246	}	372	}
247		373
248	static int poll_cb (int max);	374	static int poll_cb ();
249	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
250	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
251	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
252		378
253	/* must be called at most once */	379	/* must be called at most once */
254	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
255	{	381	{
…		…
274	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
275	}	401	}
276		402
277	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
278	{	404	{
		405	block_sig ();
		406
279	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
280	{	408	{
281	int old_len = grp->length;	409	int old_len = grp->size;
282		410
283	if (grp->fh2 && SvOK (grp->fh2))	411	if (grp->sv2 && SvOK (grp->sv2))
284	{	412	{
285	dSP;	413	dSP;
286		414
287	ENTER;	415	ENTER;
288	SAVETMPS;	416	SAVETMPS;
289	PUSHMARK (SP);	417	PUSHMARK (SP);
290	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
291	PUTBACK;	419	PUTBACK;
292	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293	SPAGAIN;	421	SPAGAIN;
294	FREETMPS;	422	FREETMPS;
295	LEAVE;	423	LEAVE;
296	}	424	}
297		425
298	/* stop if no progress has been made */	426	/* stop if no progress has been made */
299	if (old_len == grp->length)	427	if (old_len == grp->size)
300	{	428	{
301	SvREFCNT_dec (grp->fh2);	429	SvREFCNT_dec (grp->sv2);
302	grp->fh2 = 0;	430	grp->sv2 = 0;
303	break;	431	break;
304	}	432	}
305	}	433	}
		434
		435	unblock_sig ();
306	}	436	}
307		437
308	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
309	{	439	{
310	--grp->length;	440	--grp->size;
311		441
312	/* call feeder, if applicable */	442	/* call feeder, if applicable */
313	aio_grp_feed (grp);	443	aio_grp_feed (grp);
314		444
315	/* finish, if done */	445	/* finish, if done */
316	if (!grp->length && grp->fd)	446	if (!grp->size && grp->int1)
317	{	447	{
		448	block_sig ();
		449
318	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
319	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
320	}	459	}
321	}	460	}
322		461
323	static void poll_wait ()
324	{
325	fd_set rfd;
326
327	while (nreqs)
328	{
329	int size;
330	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
331	LOCK (reslock);
332	#endif
333	size = res_queue.size;
334	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
335	UNLOCK (reslock);
336	#endif
337
338	if (size)
339	return;
340
341	FD_ZERO(&rfd);
342	FD_SET(respipe [0], &rfd);
343
344	select (respipe [0] + 1, &rfd, 0, 0, 0);
345	}
346	}
347
348	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
349	{	463	{
350	dSP;	464	dSP;
		465
		466	if (req->flags & FLAG_SV2_RO_OFF)
		467	SvREADONLY_off (req->sv2);
351		468
352	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
353	{	470	{
354	errno = req->errorno;
355
356	ENTER;	471	ENTER;
357	SAVETMPS;	472	SAVETMPS;
358	PUSHMARK (SP);	473	PUSHMARK (SP);
359	EXTEND (SP, 1);	474	EXTEND (SP, 1);
360		475
…		…
365	SV *rv = &PL_sv_undef;	480	SV *rv = &PL_sv_undef;
366		481
367	if (req->result >= 0)	482	if (req->result >= 0)
368	{	483	{
369	int i;	484	int i;
370	char *buf = req->data2ptr;	485	char *buf = req->ptr2;
371	AV *av = newAV ();	486	AV *av = newAV ();
372		487
373	av_extend (av, req->result - 1);	488	av_extend (av, req->result - 1);
374		489
375	for (i = 0; i < req->result; ++i)	490	for (i = 0; i < req->result; ++i)
…		…
388	break;	503	break;
389		504
390	case REQ_OPEN:	505	case REQ_OPEN:
391	{	506	{
392	/* convert fd to fh */	507	/* convert fd to fh */
393	SV *fh;	508	SV *fh = &PL_sv_undef;
394		509
395	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
396	PUTBACK;	511	{
397	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
398	SPAGAIN;	513	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		514	char sym [64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
		518	gv_init (gv, stash, sym, symlen, 0);
399		519
400	fh = SvREFCNT_inc (POPs);	520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	req->result
		526	);
401		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = gv;
		530	}
		531
402	PUSHMARK (SP);	532	XPUSHs (fh);
403	XPUSHs (sv_2mortal (fh));
404	}	533	}
405	break;	534	break;
406		535
407	case REQ_GROUP:	536	case REQ_GROUP:
408	req->fd = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
409		538
410	if (req->data)	539	if (req->sv1)
411	{	540	{
412	int i;	541	int i;
413	AV *av = (AV *)req->data;	542	AV *av = (AV *)req->sv1;
414		543
415	EXTEND (SP, AvFILL (av) + 1);	544	EXTEND (SP, AvFILL (av) + 1);
416	for (i = 0; i <= AvFILL (av); ++i)	545	for (i = 0; i <= AvFILL (av); ++i)
417	PUSHs (*av_fetch (av, i, 0));	546	PUSHs (*av_fetch (av, i, 0));
418	}	547	}
…		…
420		549
421	case REQ_NOP:	550	case REQ_NOP:
422	case REQ_BUSY:	551	case REQ_BUSY:
423	break;	552	break;
424		553
		554	case REQ_READLINK:
		555	if (req->result > 0)
		556	{
		557	SvCUR_set (req->sv2, req->result);
		558	*SvEND (req->sv2) = 0;
		559	PUSHs (req->sv2);
		560	}
		561	break;
		562
		563	case REQ_STAT:
		564	case REQ_LSTAT:
		565	case REQ_FSTAT:
		566	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		567	PL_laststatval = req->result;
		568	PL_statcache = *(Stat_t *)(req->ptr2);
		569	PUSHs (sv_2mortal (newSViv (req->result)));
		570	break;
		571
		572	case REQ_READ:
		573	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		574	*SvEND (req->sv2) = 0;
		575	PUSHs (sv_2mortal (newSViv (req->result)));
		576	break;
		577
425	default:	578	default:
426	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
427	break;	580	break;
428	}	581	}
429		582
		583	errno = req->errorno;
430		584
431	PUTBACK;	585	PUTBACK;
432	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL);
433	SPAGAIN;	587	SPAGAIN;
434		588
…		…
448	grp->grp_first = req->grp_next;	602	grp->grp_first = req->grp_next;
449		603
450	aio_grp_dec (grp);	604	aio_grp_dec (grp);
451	}	605	}
452		606
453	if (SvTRUE (ERRSV))	607	return !SvTRUE (ERRSV);
454	{
455	req_free (req);
456	croak (0);
457	}
458	}	608	}
459		609
460	static void req_free (aio_req req)	610	static void req_destroy (aio_req req)
461	{	611	{
462	if (req->self)	612	if (req->self)
463	{	613	{
464	sv_unmagic (req->self, PERL_MAGIC_ext);	614	sv_unmagic (req->self, PERL_MAGIC_ext);
465	SvREFCNT_dec (req->self);	615	SvREFCNT_dec (req->self);
466	}	616	}
467		617
468	SvREFCNT_dec (req->data);
469	SvREFCNT_dec (req->fh);	618	SvREFCNT_dec (req->sv1);
470	SvREFCNT_dec (req->fh2);	619	SvREFCNT_dec (req->sv2);
471	SvREFCNT_dec (req->callback);	620	SvREFCNT_dec (req->callback);
472	Safefree (req->statdata);
473		621
474	if (req->type == REQ_READDIR)	622	if (req->flags & FLAG_PTR2_FREE)
475	free (req->data2ptr);	623	free (req->ptr2);
476		624
477	Safefree (req);	625	Safefree (req);
478	}	626	}
479		627
480	static void req_cancel_subs (aio_req grp)	628	static void req_cancel_subs (aio_req grp)
…		…
482	aio_req sub;	630	aio_req sub;
483		631
484	if (grp->type != REQ_GROUP)	632	if (grp->type != REQ_GROUP)
485	return;	633	return;
486		634
487	SvREFCNT_dec (grp->fh2);	635	SvREFCNT_dec (grp->sv2);
488	grp->fh2 = 0;	636	grp->sv2 = 0;
489		637
490	for (sub = grp->grp_first; sub; sub = sub->grp_next)	638	for (sub = grp->grp_first; sub; sub = sub->grp_next)
491	req_cancel (sub);	639	req_cancel (sub);
492	}	640	}
493		641
…		…
496	req->flags |= FLAG_CANCELLED;	644	req->flags |= FLAG_CANCELLED;
497		645
498	req_cancel_subs (req);	646	req_cancel_subs (req);
499	}	647	}
500		648
501	static int poll_cb (int max)	649	#ifdef USE_SOCKETS_AS_HANDLES
502	{	650	# define TO_SOCKET(x) (win32_get_osfhandle (x))
503	dSP;	651	#else
504	int count = 0;	652	# define TO_SOCKET(x) (x)
505	int do_croak = 0;	653	#endif
506	aio_req req;
507		654
508	while (max <= 0 || count < max)	655	static void
		656	create_respipe ()
		657	{
		658	int old_readfd = respipe [0];
		659
		660	if (respipe [1] >= 0)
		661	respipe_close (TO_SOCKET (respipe [1]));
		662
		663	#ifdef _WIN32
		664	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		665	#else
		666	if (pipe (respipe))
		667	#endif
		668	croak ("unable to initialize result pipe");
		669
		670	if (old_readfd >= 0)
509	{	671	{
510	LOCK (reslock);	672	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
511	req = reqq_shift (&res_queue);	673	croak ("unable to initialize result pipe(2)");
512		674
513	if (req)	675	respipe_close (respipe [0]);
514	{	676	respipe [0] = old_readfd;
515	if (!res_queue.size)
516	{
517	/* read any signals sent by the worker threads */
518	char buf [32];
519	while (read (respipe [0], buf, 32) == 32)
520	;
521	}
522	}
523
524	UNLOCK (reslock);
525
526	if (!req)
527	break;
528
529	--nreqs;
530
531	if (req->type == REQ_QUIT)
532	started--;
533	else if (req->type == REQ_GROUP && req->length)
534	{
535	req->fd = 1; /* mark request as delayed */
536	continue;
537	}
538	else
539	{
540	if (req->type == REQ_READ)
541	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
542
543	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
544	SvREADONLY_off (req->data);
545
546	if (req->statdata)
547	{
548	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
549	PL_laststatval = req->result;
550	PL_statcache = *(req->statdata);
551	}
552
553	req_invoke (req);
554
555	count++;
556	}
557
558	req_free (req);
559	}	677	}
560		678
561	return count;	679	#ifdef _WIN32
562	}	680	int arg = 1;
		681	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		682	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		683	#else
		684	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		685	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		686	#endif
		687	croak ("unable to initialize result pipe(3)");
563		688
564	static void *aio_proc(void *arg);	689	respipe_osf [0] = TO_SOCKET (respipe [0]);
		690	respipe_osf [1] = TO_SOCKET (respipe [1]);
		691	}
		692
		693	X_THREAD_PROC (aio_proc);
565		694
566	static void start_thread (void)	695	static void start_thread (void)
567	{	696	{
568	sigset_t fullsigset, oldsigset;
569	pthread_attr_t attr;
570
571	worker *wrk = calloc (1, sizeof (worker));	697	worker *wrk = calloc (1, sizeof (worker));
572		698
573	if (!wrk)	699	if (!wrk)
574	croak ("unable to allocate worker thread data");	700	croak ("unable to allocate worker thread data");
575		701
576	pthread_attr_init (&attr);
577	pthread_attr_setstacksize (&attr, STACKSIZE);
578	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
579
580	sigfillset (&fullsigset);
581
582	LOCK (wrklock);	702	X_LOCK (wrklock);
583	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
584		703
585	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	704	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
586	{	705	{
587	wrk->prev = &wrk_first;	706	wrk->prev = &wrk_first;
588	wrk->next = wrk_first.next;	707	wrk->next = wrk_first.next;
589	wrk_first.next->prev = wrk;	708	wrk_first.next->prev = wrk;
590	wrk_first.next = wrk;	709	wrk_first.next = wrk;
591	started++;	710	++started;
592	}	711	}
593	else	712	else
594	free (wrk);	713	free (wrk);
595		714
596	sigprocmask (SIG_SETMASK, &oldsigset, 0);
597	UNLOCK (wrklock);	715	X_UNLOCK (wrklock);
		716	}
		717
		718	static void maybe_start_thread ()
		719	{
		720	if (get_nthreads () >= wanted)
		721	return;
		722
		723	/* todo: maybe use idle here, but might be less exact */
		724	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		725	return;
		726
		727	start_thread ();
598	}	728	}
599		729
600	static void req_send (aio_req req)	730	static void req_send (aio_req req)
601	{	731	{
602	while (started < wanted && nreqs >= started)	732	block_sig ();
603	start_thread ();
604		733
605	++nreqs;	734	++nreqs;
606		735
607	LOCK (reqlock);	736	X_LOCK (reqlock);
		737	++nready;
608	reqq_push (&req_queue, req);	738	reqq_push (&req_queue, req);
609	pthread_cond_signal (&reqwait);	739	X_COND_SIGNAL (reqwait);
610	UNLOCK (reqlock);	740	X_UNLOCK (reqlock);
		741
		742	unblock_sig ();
		743
		744	maybe_start_thread ();
611	}	745	}
612		746
613	static void end_thread (void)	747	static void end_thread (void)
614	{	748	{
615	aio_req req;	749	aio_req req;
…		…
617	Newz (0, req, 1, aio_cb);	751	Newz (0, req, 1, aio_cb);
618		752
619	req->type = REQ_QUIT;	753	req->type = REQ_QUIT;
620	req->pri = PRI_MAX + PRI_BIAS;	754	req->pri = PRI_MAX + PRI_BIAS;
621		755
622	req_send (req);	756	X_LOCK (reqlock);
		757	reqq_push (&req_queue, req);
		758	X_COND_SIGNAL (reqwait);
		759	X_UNLOCK (reqlock);
		760
		761	X_LOCK (wrklock);
		762	--started;
		763	X_UNLOCK (wrklock);
		764	}
		765
		766	static void set_max_idle (int nthreads)
		767	{
		768	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		769	max_idle = nthreads <= 0 ? 1 : nthreads;
		770	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
623	}	771	}
624		772
625	static void min_parallel (int nthreads)	773	static void min_parallel (int nthreads)
626	{	774	{
627	if (wanted < nthreads)	775	if (wanted < nthreads)
628	wanted = nthreads;	776	wanted = nthreads;
629	}	777	}
630		778
631	static void max_parallel (int nthreads)	779	static void max_parallel (int nthreads)
632	{	780	{
633	int cur = started;
634
635	if (wanted > nthreads)	781	if (wanted > nthreads)
636	wanted = nthreads;	782	wanted = nthreads;
637		783
638	while (cur > wanted)	784	while (started > wanted)
		785	end_thread ();
		786	}
		787
		788	static void poll_wait ()
		789	{
		790	fd_set rfd;
		791
		792	while (nreqs)
639	{	793	{
		794	int size;
		795	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		796	size = res_queue.size;
		797	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		798
		799	if (size)
		800	return;
		801
640	end_thread ();	802	maybe_start_thread ();
641	cur--;	803
		804	FD_ZERO (&rfd);
		805	FD_SET (respipe [0], &rfd);
		806
		807	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
642	}	808	}
		809	}
643		810
644	while (started > wanted)	811	static int poll_cb ()
		812	{
		813	dSP;
		814	int count = 0;
		815	int maxreqs = max_poll_reqs;
		816	int do_croak = 0;
		817	struct timeval tv_start, tv_now;
		818	aio_req req;
		819
		820	if (max_poll_time)
		821	gettimeofday (&tv_start, 0);
		822
		823	block_sig ();
		824
		825	for (;;)
645	{	826	{
		827	for (;;)
		828	{
		829	maybe_start_thread ();
		830
		831	X_LOCK (reslock);
		832	req = reqq_shift (&res_queue);
		833
		834	if (req)
		835	{
		836	--npending;
		837
		838	if (!res_queue.size)
		839	{
		840	/* read any signals sent by the worker threads */
		841	char buf [4];
		842	while (respipe_read (respipe [0], buf, 4) == 4)
		843	;
		844	}
		845	}
		846
		847	X_UNLOCK (reslock);
		848
		849	if (!req)
		850	break;
		851
		852	--nreqs;
		853
		854	if (req->type == REQ_GROUP && req->size)
		855	{
		856	req->int1 = 1; /* mark request as delayed */
		857	continue;
		858	}
		859	else
		860	{
		861	if (!req_invoke (req))
		862	{
		863	req_destroy (req);
		864	unblock_sig ();
		865	croak (0);
		866	}
		867
		868	count++;
		869	}
		870
		871	req_destroy (req);
		872
		873	if (maxreqs && !--maxreqs)
		874	break;
		875
		876	if (max_poll_time)
		877	{
		878	gettimeofday (&tv_now, 0);
		879
		880	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		881	break;
		882	}
		883	}
		884
		885	if (nreqs <= max_outstanding)
		886	break;
		887
646	poll_wait ();	888	poll_wait ();
647	poll_cb (0);	889
		890	++maxreqs;
648	}	891	}
649	}
650		892
651	static void create_pipe ()	893	unblock_sig ();
652	{	894	return count;
653	if (pipe (respipe))
654	croak ("unable to initialize result pipe");
655
656	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
657	croak ("cannot set result pipe to nonblocking mode");
658
659	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
660	croak ("cannot set result pipe to nonblocking mode");
661	}	895	}
662		896
663	/*****************************************************************************/	897	/*****************************************************************************/
664	/* work around various missing functions */	898	/* work around various missing functions */
665		899
…		…
670	/*	904	/*
671	* make our pread/pwrite safe against themselves, but not against	905	* make our pread/pwrite safe against themselves, but not against
672	* normal read/write by using a mutex. slows down execution a lot,	906	* normal read/write by using a mutex. slows down execution a lot,
673	* but that's your problem, not mine.	907	* but that's your problem, not mine.
674	*/	908	*/
675	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	909	static mutex_t preadwritelock = X_MUTEX_INIT;
676		910
677	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	911	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
678	{	912	{
679	ssize_t res;	913	ssize_t res;
680	off_t ooffset;	914	off_t ooffset;
681		915
682	LOCK (preadwritelock);	916	X_LOCK (preadwritelock);
683	ooffset = lseek (fd, 0, SEEK_CUR);	917	ooffset = lseek (fd, 0, SEEK_CUR);
684	lseek (fd, offset, SEEK_SET);	918	lseek (fd, offset, SEEK_SET);
685	res = read (fd, buf, count);	919	res = read (fd, buf, count);
686	lseek (fd, ooffset, SEEK_SET);	920	lseek (fd, ooffset, SEEK_SET);
687	UNLOCK (preadwritelock);	921	X_UNLOCK (preadwritelock);
688		922
689	return res;	923	return res;
690	}	924	}
691		925
692	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	926	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
693	{	927	{
694	ssize_t res;	928	ssize_t res;
695	off_t ooffset;	929	off_t ooffset;
696		930
697	LOCK (preadwritelock);	931	X_LOCK (preadwritelock);
698	ooffset = lseek (fd, 0, SEEK_CUR);	932	ooffset = lseek (fd, 0, SEEK_CUR);
699	lseek (fd, offset, SEEK_SET);	933	lseek (fd, offset, SEEK_SET);
700	res = write (fd, buf, count);	934	res = write (fd, buf, count);
701	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
702	UNLOCK (preadwritelock);	936	X_UNLOCK (preadwritelock);
703		937
704	return res;	938	return res;
705	}	939	}
		940	#endif
		941
		942	#ifndef HAVE_FUTIMES
		943
		944	# define utimes(path,times) aio_utimes (path, times)
		945	# define futimes(fd,times) aio_futimes (fd, times)
		946
		947	int aio_utimes (const char *filename, const struct timeval times[2])
		948	{
		949	if (times)
		950	{
		951	struct utimbuf buf;
		952
		953	buf.actime = times[0].tv_sec;
		954	buf.modtime = times[1].tv_sec;
		955
		956	return utime (filename, &buf);
		957	}
		958	else
		959	return utime (filename, 0);
		960	}
		961
		962	int aio_futimes (int fd, const struct timeval tv[2])
		963	{
		964	errno = ENOSYS;
		965	return -1;
		966	}
		967
706	#endif	968	#endif
707		969
708	#if !HAVE_FDATASYNC	970	#if !HAVE_FDATASYNC
709	# define fdatasync fsync	971	# define fdatasync fsync
710	#endif	972	#endif
…		…
712	#if !HAVE_READAHEAD	974	#if !HAVE_READAHEAD
713	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	975	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
714		976
715	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	977	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
716	{	978	{
		979	size_t todo = count;
717	dBUF;	980	dBUF;
718		981
719	while (count > 0)	982	while (todo > 0)
720	{	983	{
721	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	984	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
722		985
723	pread (fd, aio_buf, len, offset);	986	pread (fd, aio_buf, len, offset);
724	offset += len;	987	offset += len;
725	count -= len;	988	todo -= len;
726	}	989	}
727		990
728	errno = 0;	991	errno = 0;
		992	return count;
729	}	993	}
730		994
731	#endif	995	#endif
732		996
733	#if !HAVE_READDIR_R	997	#if !HAVE_READDIR_R
734	# define readdir_r aio_readdir_r	998	# define readdir_r aio_readdir_r
735		999
736	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1000	static mutex_t readdirlock = X_MUTEX_INIT;
737		1001
738	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	1002	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
739	{	1003	{
740	struct dirent *e;	1004	X_DIRENT *e;
741	int errorno;	1005	int errorno;
742		1006
743	LOCK (readdirlock);	1007	X_LOCK (readdirlock);
744		1008
745	e = readdir (dirp);	1009	e = readdir (dirp);
746	errorno = errno;	1010	errorno = errno;
747		1011
748	if (e)	1012	if (e)
…		…
751	strcpy (ent->d_name, e->d_name);	1015	strcpy (ent->d_name, e->d_name);
752	}	1016	}
753	else	1017	else
754	*res = 0;	1018	*res = 0;
755		1019
756	UNLOCK (readdirlock);	1020	X_UNLOCK (readdirlock);
757		1021
758	errno = errorno;	1022	errno = errorno;
759	return e ? 0 : -1;	1023	return e ? 0 : -1;
760	}	1024	}
761	#endif	1025	#endif
…		…
857	static void scandir_ (aio_req req, worker *self)	1121	static void scandir_ (aio_req req, worker *self)
858	{	1122	{
859	DIR *dirp;	1123	DIR *dirp;
860	union	1124	union
861	{	1125	{
862	struct dirent d;	1126	X_DIRENT d;
863	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1127	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
864	} *u;	1128	} *u;
865	struct dirent *entp;	1129	X_DIRENT *entp;
866	char *name, *names;	1130	char *name, *names;
867	int memlen = 4096;	1131	int memlen = 4096;
868	int memofs = 0;	1132	int memofs = 0;
869	int res = 0;	1133	int res = 0;
870	int errorno;
871		1134
872	LOCK (wrklock);	1135	X_LOCK (wrklock);
873	self->dirp = dirp = opendir (req->dataptr);	1136	self->dirp = dirp = opendir (req->ptr1);
874	self->dbuf = u = malloc (sizeof (*u));	1137	self->dbuf = u = malloc (sizeof (*u));
		1138	req->flags |= FLAG_PTR2_FREE;
875	req->data2ptr = names = malloc (memlen);	1139	req->ptr2 = names = malloc (memlen);
876	UNLOCK (wrklock);	1140	X_UNLOCK (wrklock);
877		1141
878	if (dirp && u && names)	1142	if (dirp && u && names)
879	for (;;)	1143	for (;;)
880	{	1144	{
881	errno = 0;	1145	errno = 0;
…		…
893	res++;	1157	res++;
894		1158
895	while (memofs + len > memlen)	1159	while (memofs + len > memlen)
896	{	1160	{
897	memlen *= 2;	1161	memlen *= 2;
898	LOCK (wrklock);	1162	X_LOCK (wrklock);
899	req->data2ptr = names = realloc (names, memlen);	1163	req->ptr2 = names = realloc (names, memlen);
900	UNLOCK (wrklock);	1164	X_UNLOCK (wrklock);
901		1165
902	if (!names)	1166	if (!names)
903	break;	1167	break;
904	}	1168	}
905		1169
…		…
914	req->result = res;	1178	req->result = res;
915	}	1179	}
916		1180
917	/*****************************************************************************/	1181	/*****************************************************************************/
918		1182
919	static void *aio_proc (void *thr_arg)	1183	X_THREAD_PROC (aio_proc)
920	{	1184	{
		1185	{//D
921	aio_req req;	1186	aio_req req;
922	int type;	1187	struct timespec ts;
923	worker *self = (worker *)thr_arg;	1188	worker *self = (worker *)thr_arg;
924		1189
925	do	1190	/* try to distribute timeouts somewhat randomly */
		1191	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1192
		1193	for (;;)
926	{	1194	{
		1195	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1196
927	LOCK (reqlock);	1197	X_LOCK (reqlock);
928		1198
929	for (;;)	1199	for (;;)
930	{	1200	{
931	self->req = req = reqq_shift (&req_queue);	1201	self->req = req = reqq_shift (&req_queue);
932		1202
933	if (req)	1203	if (req)
934	break;	1204	break;
935		1205
936	pthread_cond_wait (&reqwait, &reqlock);	1206	++idle;
		1207
		1208	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1209	== ETIMEDOUT)
		1210	{
		1211	if (idle > max_idle)
		1212	{
		1213	--idle;
		1214	X_UNLOCK (reqlock);
		1215	X_LOCK (wrklock);
		1216	--started;
		1217	X_UNLOCK (wrklock);
		1218	goto quit;
		1219	}
		1220
		1221	/* we are allowed to idle, so do so without any timeout */
		1222	X_COND_WAIT (reqwait, reqlock);
		1223	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1224	}
		1225
		1226	--idle;
937	}	1227	}
938		1228
		1229	--nready;
		1230
939	UNLOCK (reqlock);	1231	X_UNLOCK (reqlock);
940		1232
941	errno = 0; /* strictly unnecessary */	1233	errno = 0; /* strictly unnecessary */
942	type = req->type; /* remember type for QUIT check */
943		1234
944	if (!(req->flags & FLAG_CANCELLED))	1235	if (!(req->flags & FLAG_CANCELLED))
945	switch (type)	1236	switch (req->type)
946	{	1237	{
947	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1238	case REQ_READ: req->result = req->offs >= 0
948	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1239	? pread (req->int1, req->ptr1, req->size, req->offs)
		1240	: read (req->int1, req->ptr1, req->size); break;
		1241	case REQ_WRITE: req->result = req->offs >= 0
		1242	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1243	: write (req->int1, req->ptr1, req->size); break;
949		1244
950	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1245	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
951	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1246	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
952		1247
953	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1248	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
954	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1249	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
955	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1250	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
956		1251
		1252	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1253	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1254	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1255	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1256	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1257	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1258
957	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1259	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
958	case REQ_CLOSE: req->result = close (req->fd); break;	1260	case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
959	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1261	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
960	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1262	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1263	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
961	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1264	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
962	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1265	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
963	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1266	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1267	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1268	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
964		1269
965	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1270	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
966	case REQ_FSYNC: req->result = fsync (req->fd); break;	1271	case REQ_FSYNC: req->result = fsync (req->int1); break;
967	case REQ_READDIR: scandir_ (req, self); break;	1272	case REQ_READDIR: scandir_ (req, self); break;
968		1273
969	case REQ_BUSY:	1274	case REQ_BUSY:
		1275	#ifdef _WIN32
		1276	Sleep (req->nv1 * 1000.);
		1277	#else
970	{	1278	{
971	struct timeval tv;	1279	struct timeval tv;
972		1280
973	tv.tv_sec = req->fd;	1281	tv.tv_sec = req->nv1;
974	tv.tv_usec = req->fd2;	1282	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
975		1283
976	req->result = select (0, 0, 0, 0, &tv);	1284	req->result = select (0, 0, 0, 0, &tv);
977	}	1285	}
		1286	#endif
		1287	break;
		1288
		1289	case REQ_UTIME:
		1290	case REQ_FUTIME:
		1291	{
		1292	struct timeval tv[2];
		1293	struct timeval *times;
		1294
		1295	if (req->nv1 != -1. || req->nv2 != -1.)
		1296	{
		1297	tv[0].tv_sec = req->nv1;
		1298	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1299	tv[1].tv_sec = req->nv2;
		1300	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1301
		1302	times = tv;
		1303	}
		1304	else
		1305	times = 0;
		1306
		1307
		1308	req->result = req->type == REQ_FUTIME
		1309	? futimes (req->int1, times)
		1310	: utimes (req->ptr1, times);
		1311	}
978		1312
979	case REQ_GROUP:	1313	case REQ_GROUP:
980	case REQ_NOP:	1314	case REQ_NOP:
		1315	break;
		1316
981	case REQ_QUIT:	1317	case REQ_QUIT:
982	break;	1318	goto quit;
983		1319
984	default:	1320	default:
985	req->result = ENOSYS;	1321	req->result = -1;
986	break;	1322	break;
987	}	1323	}
988		1324
989	req->errorno = errno;	1325	req->errorno = errno;
990		1326
991	LOCK (reslock);	1327	X_LOCK (reslock);
		1328
		1329	++npending;
992		1330
993	if (!reqq_push (&res_queue, req))	1331	if (!reqq_push (&res_queue, req))
		1332	{
994	/* write a dummy byte to the pipe so fh becomes ready */	1333	/* write a dummy byte to the pipe so fh becomes ready */
995	write (respipe [1], &respipe, 1);	1334	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1335
		1336	/* optionally signal the main thread asynchronously */
		1337	if (main_sig)
		1338	pthread_kill (main_tid, main_sig);
		1339	}
996		1340
997	self->req = 0;	1341	self->req = 0;
998	worker_clear (self);	1342	worker_clear (self);
999		1343
1000	UNLOCK (reslock);	1344	X_UNLOCK (reslock);
1001	}	1345	}
1002	while (type != REQ_QUIT);
1003		1346
		1347	quit:
1004	LOCK (wrklock);	1348	X_LOCK (wrklock);
1005	worker_free (self);	1349	worker_free (self);
1006	UNLOCK (wrklock);	1350	X_UNLOCK (wrklock);
1007		1351
1008	return 0;	1352	return 0;
		1353	}//D
1009	}	1354	}
1010		1355
1011	/*****************************************************************************/	1356	/*****************************************************************************/
1012		1357
1013	static void atfork_prepare (void)	1358	static void atfork_prepare (void)
1014	{	1359	{
1015	LOCK (wrklock);	1360	X_LOCK (wrklock);
1016	LOCK (reqlock);	1361	X_LOCK (reqlock);
1017	LOCK (reslock);	1362	X_LOCK (reslock);
1018	#if !HAVE_PREADWRITE	1363	#if !HAVE_PREADWRITE
1019	LOCK (preadwritelock);	1364	X_LOCK (preadwritelock);
1020	#endif	1365	#endif
1021	#if !HAVE_READDIR_R	1366	#if !HAVE_READDIR_R
1022	LOCK (readdirlock);	1367	X_LOCK (readdirlock);
1023	#endif	1368	#endif
1024	}	1369	}
1025		1370
1026	static void atfork_parent (void)	1371	static void atfork_parent (void)
1027	{	1372	{
1028	#if !HAVE_READDIR_R	1373	#if !HAVE_READDIR_R
1029	UNLOCK (readdirlock);	1374	X_UNLOCK (readdirlock);
1030	#endif	1375	#endif
1031	#if !HAVE_PREADWRITE	1376	#if !HAVE_PREADWRITE
1032	UNLOCK (preadwritelock);	1377	X_UNLOCK (preadwritelock);
1033	#endif	1378	#endif
1034	UNLOCK (reslock);	1379	X_UNLOCK (reslock);
1035	UNLOCK (reqlock);	1380	X_UNLOCK (reqlock);
1036	UNLOCK (wrklock);	1381	X_UNLOCK (wrklock);
1037	}	1382	}
1038		1383
1039	static void atfork_child (void)	1384	static void atfork_child (void)
1040	{	1385	{
1041	aio_req prv;	1386	aio_req prv;
1042		1387
1043	while (prv = reqq_shift (&req_queue))	1388	while (prv = reqq_shift (&req_queue))
1044	req_free (prv);	1389	req_destroy (prv);
1045		1390
1046	while (prv = reqq_shift (&res_queue))	1391	while (prv = reqq_shift (&res_queue))
1047	req_free (prv);	1392	req_destroy (prv);
1048		1393
1049	while (wrk_first.next != &wrk_first)	1394	while (wrk_first.next != &wrk_first)
1050	{	1395	{
1051	worker *wrk = wrk_first.next;	1396	worker *wrk = wrk_first.next;
1052		1397
1053	if (wrk->req)	1398	if (wrk->req)
1054	req_free (wrk->req);	1399	req_destroy (wrk->req);
1055		1400
1056	worker_clear (wrk);	1401	worker_clear (wrk);
1057	worker_free (wrk);	1402	worker_free (wrk);
1058	}	1403	}
1059		1404
1060	started = 0;	1405	started = 0;
		1406	idle = 0;
1061	nreqs = 0;	1407	nreqs = 0;
		1408	nready = 0;
		1409	npending = 0;
1062		1410
1063	close (respipe [0]);
1064	close (respipe [1]);
1065	create_pipe ();	1411	create_respipe ();
1066		1412
1067	atfork_parent ();	1413	atfork_parent ();
1068	}	1414	}
1069		1415
1070	#define dREQ \	1416	#define dREQ \
…		…
1092		1438
1093	PROTOTYPES: ENABLE	1439	PROTOTYPES: ENABLE
1094		1440
1095	BOOT:	1441	BOOT:
1096	{	1442	{
1097	HV *stash = gv_stashpv ("IO::AIO", 1);	1443	stash = gv_stashpv ("IO::AIO", 1);
		1444
1098	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1445	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1446	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1447	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1448	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1449	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1450	#ifdef _WIN32
		1451	X_MUTEX_CHECK (wrklock);
		1452	X_MUTEX_CHECK (reslock);
		1453	X_MUTEX_CHECK (reqlock);
		1454	X_MUTEX_CHECK (reqwait);
		1455	X_MUTEX_CHECK (preadwritelock);
		1456	X_MUTEX_CHECK (readdirlock);
1101		1457
1102	create_pipe ();	1458	X_COND_CHECK (reqwait);
		1459	#else
		1460	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1461	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1462	#endif
		1463
		1464	create_respipe ();
		1465
1103	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1466	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1104	}	1467	}
1105		1468
1106	void	1469	void
1107	min_parallel (nthreads)	1470	max_poll_reqs (int nreqs)
1108	int nthreads
1109	PROTOTYPE: $	1471	PROTOTYPE: $
		1472	CODE:
		1473	max_poll_reqs = nreqs;
1110		1474
1111	void	1475	void
1112	max_parallel (nthreads)	1476	max_poll_time (double nseconds)
1113	int nthreads
1114	PROTOTYPE: $	1477	PROTOTYPE: $
		1478	CODE:
		1479	max_poll_time = nseconds * AIO_TICKS;
1115		1480
1116	void	1481	void
		1482	min_parallel (int nthreads)
		1483	PROTOTYPE: $
		1484
		1485	void
		1486	max_parallel (int nthreads)
		1487	PROTOTYPE: $
		1488
		1489	void
		1490	max_idle (int nthreads)
		1491	PROTOTYPE: $
		1492	CODE:
		1493	set_max_idle (nthreads);
		1494
		1495	int
		1496	max_outstanding (int maxreqs)
		1497	PROTOTYPE: $
		1498	CODE:
		1499	RETVAL = max_outstanding;
		1500	max_outstanding = maxreqs;
		1501	OUTPUT:
		1502	RETVAL
		1503
		1504	void
1117	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1505	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1118	SV * pathname
1119	int flags
1120	int mode
1121	SV * callback
1122	PROTOTYPE: $$$;$	1506	PROTOTYPE: $$$;$
1123	PPCODE:	1507	PPCODE:
1124	{	1508	{
1125	dREQ;	1509	dREQ;
1126		1510
1127	req->type = REQ_OPEN;	1511	req->type = REQ_OPEN;
1128	req->data = newSVsv (pathname);	1512	req->sv1 = newSVsv (pathname);
1129	req->dataptr = SvPVbyte_nolen (req->data);	1513	req->ptr1 = SvPVbyte_nolen (req->sv1);
1130	req->fd = flags;	1514	req->int1 = flags;
1131	req->mode = mode;	1515	req->mode = mode;
1132		1516
1133	REQ_SEND;	1517	REQ_SEND;
1134	}	1518	}
1135		1519
1136	void	1520	void
1137	aio_close (fh,callback=&PL_sv_undef)	1521	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1138	SV * fh
1139	SV * callback
1140	PROTOTYPE: $;$	1522	PROTOTYPE: $;$
1141	ALIAS:	1523	ALIAS:
1142	aio_close = REQ_CLOSE
1143	aio_fsync = REQ_FSYNC	1524	aio_fsync = REQ_FSYNC
1144	aio_fdatasync = REQ_FDATASYNC	1525	aio_fdatasync = REQ_FDATASYNC
1145	PPCODE:	1526	PPCODE:
1146	{	1527	{
1147	dREQ;	1528	dREQ;
1148		1529
1149	req->type = ix;	1530	req->type = ix;
1150	req->fh = newSVsv (fh);	1531	req->sv1 = newSVsv (fh);
1151	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1532	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152		1533
1153	REQ_SEND (req);	1534	REQ_SEND (req);
1154	}	1535	}
1155		1536
1156	void	1537	void
		1538	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1539	PROTOTYPE: $;$
		1540	PPCODE:
		1541	{
		1542	PerlIO *io = IoIFP (sv_2io (fh));
		1543	int fd = PerlIO_fileno (io);
		1544
		1545	if (fd < 0)
		1546	croak ("aio_close called with fd-less filehandle");
		1547
		1548	PerlIO_binmode (io, 0, 0, 0);
		1549
		1550	{
		1551	dREQ;
		1552
		1553	req->type = REQ_CLOSE;
		1554	req->sv1 = newSVsv (fh);
		1555	req->ptr1 = (void *)io;
		1556
		1557	REQ_SEND (req);
		1558	}
		1559	}
		1560
		1561	void
1157	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1562	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1158	SV * fh
1159	UV offset
1160	UV length
1161	SV * data
1162	UV dataoffset
1163	SV * callback
1164	ALIAS:	1563	ALIAS:
1165	aio_read = REQ_READ	1564	aio_read = REQ_READ
1166	aio_write = REQ_WRITE	1565	aio_write = REQ_WRITE
1167	PROTOTYPE: $$$$$;$	1566	PROTOTYPE: $$$$$;$
1168	PPCODE:	1567	PPCODE:
1169	{	1568	{
1170	aio_req req;
1171	STRLEN svlen;	1569	STRLEN svlen;
1172	char *svptr = SvPVbyte (data, svlen);	1570	char *svptr = SvPVbyte (data, svlen);
		1571	UV len = SvUV (length);
1173		1572
1174	SvUPGRADE (data, SVt_PV);	1573	SvUPGRADE (data, SVt_PV);
1175	SvPOK_on (data);	1574	SvPOK_on (data);
1176		1575
1177	if (dataoffset < 0)	1576	if (dataoffset < 0)
1178	dataoffset += svlen;	1577	dataoffset += svlen;
1179		1578
1180	if (dataoffset < 0 || dataoffset > svlen)	1579	if (dataoffset < 0 || dataoffset > svlen)
1181	croak ("data offset outside of string");	1580	croak ("dataoffset outside of data scalar");
1182		1581
1183	if (ix == REQ_WRITE)	1582	if (ix == REQ_WRITE)
1184	{	1583	{
1185	/* write: check length and adjust. */	1584	/* write: check length and adjust. */
1186	if (length < 0 || length + dataoffset > svlen)	1585	if (!SvOK (length) || len + dataoffset > svlen)
1187	length = svlen - dataoffset;	1586	len = svlen - dataoffset;
1188	}	1587	}
1189	else	1588	else
1190	{	1589	{
1191	/* read: grow scalar as necessary */	1590	/* read: grow scalar as necessary */
1192	svptr = SvGROW (data, length + dataoffset);	1591	svptr = SvGROW (data, len + dataoffset + 1);
1193	}	1592	}
1194		1593
1195	if (length < 0)	1594	if (len < 0)
1196	croak ("length must not be negative");	1595	croak ("length must not be negative");
1197		1596
1198	{	1597	{
1199	dREQ;	1598	dREQ;
1200		1599
1201	req->type = ix;	1600	req->type = ix;
1202	req->fh = newSVsv (fh);	1601	req->sv1 = newSVsv (fh);
1203	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1602	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1204	: IoOFP (sv_2io (fh)));	1603	: IoOFP (sv_2io (fh)));
		1604	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205	req->offset = offset;	1605	req->size = len;
1206	req->length = length;
1207	req->data = SvREFCNT_inc (data);	1606	req->sv2 = SvREFCNT_inc (data);
1208	req->dataptr = (char *)svptr + dataoffset;	1607	req->ptr1 = (char *)svptr + dataoffset;
		1608	req->stroffset = dataoffset;
1209		1609
1210	if (!SvREADONLY (data))	1610	if (!SvREADONLY (data))
1211	{	1611	{
1212	SvREADONLY_on (data);	1612	SvREADONLY_on (data);
1213	req->data2ptr = (void *)data;	1613	req->flags |= FLAG_SV2_RO_OFF;
1214	}	1614	}
1215		1615
1216	REQ_SEND;	1616	REQ_SEND;
1217	}	1617	}
1218	}	1618	}
1219		1619
1220	void	1620	void
		1621	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1622	PROTOTYPE: $$;$
		1623	PPCODE:
		1624	{
		1625	SV *data;
		1626	dREQ;
		1627
		1628	data = newSV (NAME_MAX);
		1629	SvPOK_on (data);
		1630
		1631	req->type = REQ_READLINK;
		1632	req->sv1 = newSVsv (path);
		1633	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1634	req->sv2 = data;
		1635	req->ptr1 = SvPVbyte_nolen (data);
		1636
		1637	REQ_SEND;
		1638	}
		1639
		1640	void
1221	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1641	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1222	SV * out_fh
1223	SV * in_fh
1224	UV in_offset
1225	UV length
1226	SV * callback
1227	PROTOTYPE: $$$$;$	1642	PROTOTYPE: $$$$;$
1228	PPCODE:	1643	PPCODE:
1229	{	1644	{
1230	dREQ;	1645	dREQ;
1231		1646
1232	req->type = REQ_SENDFILE;	1647	req->type = REQ_SENDFILE;
1233	req->fh = newSVsv (out_fh);	1648	req->sv1 = newSVsv (out_fh);
1234	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1649	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235	req->fh2 = newSVsv (in_fh);	1650	req->sv2 = newSVsv (in_fh);
1236	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1651	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237	req->offset = in_offset;	1652	req->offs = SvVAL64 (in_offset);
1238	req->length = length;	1653	req->size = length;
1239		1654
1240	REQ_SEND;	1655	REQ_SEND;
1241	}	1656	}
1242		1657
1243	void	1658	void
1244	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1659	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1245	SV * fh
1246	UV offset
1247	IV length
1248	SV * callback
1249	PROTOTYPE: $$$;$	1660	PROTOTYPE: $$$;$
1250	PPCODE:	1661	PPCODE:
1251	{	1662	{
1252	dREQ;	1663	dREQ;
1253		1664
1254	req->type = REQ_READAHEAD;	1665	req->type = REQ_READAHEAD;
1255	req->fh = newSVsv (fh);	1666	req->sv1 = newSVsv (fh);
1256	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1667	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257	req->offset = offset;	1668	req->offs = SvVAL64 (offset);
1258	req->length = length;	1669	req->size = length;
1259		1670
1260	REQ_SEND;	1671	REQ_SEND;
1261	}	1672	}
1262		1673
1263	void	1674	void
1264	aio_stat (fh_or_path,callback=&PL_sv_undef)	1675	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265	SV * fh_or_path
1266	SV * callback
1267	ALIAS:	1676	ALIAS:
1268	aio_stat = REQ_STAT	1677	aio_stat = REQ_STAT
1269	aio_lstat = REQ_LSTAT	1678	aio_lstat = REQ_LSTAT
1270	PPCODE:	1679	PPCODE:
1271	{	1680	{
1272	dREQ;	1681	dREQ;
1273		1682
1274	New (0, req->statdata, 1, Stat_t);	1683	req->ptr2 = malloc (sizeof (Stat_t));
1275	if (!req->statdata)	1684	if (!req->ptr2)
1276	{	1685	{
1277	req_free (req);	1686	req_destroy (req);
1278	croak ("out of memory during aio_req->statdata allocation");	1687	croak ("out of memory during aio_stat statdata allocation");
1279	}	1688	}
		1689
		1690	req->flags |= FLAG_PTR2_FREE;
		1691	req->sv1 = newSVsv (fh_or_path);
1280		1692
1281	if (SvPOK (fh_or_path))	1693	if (SvPOK (fh_or_path))
1282	{	1694	{
1283	req->type = ix;	1695	req->type = ix;
1284	req->data = newSVsv (fh_or_path);
1285	req->dataptr = SvPVbyte_nolen (req->data);	1696	req->ptr1 = SvPVbyte_nolen (req->sv1);
1286	}	1697	}
1287	else	1698	else
1288	{	1699	{
1289	req->type = REQ_FSTAT;	1700	req->type = REQ_FSTAT;
1290	req->fh = newSVsv (fh_or_path);
1291	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1701	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292	}	1702	}
1293		1703
1294	REQ_SEND;	1704	REQ_SEND;
1295	}	1705	}
1296		1706
1297	void	1707	void
		1708	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1709	PPCODE:
		1710	{
		1711	dREQ;
		1712
		1713	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1714	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1715	req->sv1 = newSVsv (fh_or_path);
		1716
		1717	if (SvPOK (fh_or_path))
		1718	{
		1719	req->type = REQ_UTIME;
		1720	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1721	}
		1722	else
		1723	{
		1724	req->type = REQ_FUTIME;
		1725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1726	}
		1727
		1728	REQ_SEND;
		1729	}
		1730
		1731	void
		1732	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1733	PPCODE:
		1734	{
		1735	dREQ;
		1736
		1737	req->sv1 = newSVsv (fh_or_path);
		1738	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1739
		1740	if (SvPOK (fh_or_path))
		1741	{
		1742	req->type = REQ_TRUNCATE;
		1743	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1744	}
		1745	else
		1746	{
		1747	req->type = REQ_FTRUNCATE;
		1748	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1749	}
		1750
		1751	REQ_SEND;
		1752	}
		1753
		1754	void
		1755	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1756	PPCODE:
		1757	{
		1758	dREQ;
		1759
		1760	req->mode = mode;
		1761	req->sv1 = newSVsv (fh_or_path);
		1762
		1763	if (SvPOK (fh_or_path))
		1764	{
		1765	req->type = REQ_CHMOD;
		1766	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1767	}
		1768	else
		1769	{
		1770	req->type = REQ_FCHMOD;
		1771	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1772	}
		1773
		1774	REQ_SEND;
		1775	}
		1776
		1777	void
		1778	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1779	PPCODE:
		1780	{
		1781	dREQ;
		1782
		1783	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1784	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1785	req->sv1 = newSVsv (fh_or_path);
		1786
		1787	if (SvPOK (fh_or_path))
		1788	{
		1789	req->type = REQ_CHOWN;
		1790	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1791	}
		1792	else
		1793	{
		1794	req->type = REQ_FCHOWN;
		1795	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1796	}
		1797
		1798	REQ_SEND;
		1799	}
		1800
		1801	void
1298	aio_unlink (pathname,callback=&PL_sv_undef)	1802	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299	SV * pathname
1300	SV * callback
1301	ALIAS:	1803	ALIAS:
1302	aio_unlink = REQ_UNLINK	1804	aio_unlink = REQ_UNLINK
1303	aio_rmdir = REQ_RMDIR	1805	aio_rmdir = REQ_RMDIR
1304	aio_readdir = REQ_READDIR	1806	aio_readdir = REQ_READDIR
1305	PPCODE:	1807	PPCODE:
1306	{	1808	{
1307	dREQ;	1809	dREQ;
1308		1810
1309	req->type = ix;	1811	req->type = ix;
1310	req->data = newSVsv (pathname);	1812	req->sv1 = newSVsv (pathname);
1311	req->dataptr = SvPVbyte_nolen (req->data);	1813	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1814
		1815	REQ_SEND;
		1816	}
		1817
		1818	void
		1819	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1820	PPCODE:
		1821	{
		1822	dREQ;
1312		1823
		1824	req->type = REQ_MKDIR;
		1825	req->sv1 = newSVsv (pathname);
		1826	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1827	req->mode = mode;
		1828
1313	REQ_SEND;	1829	REQ_SEND;
1314	}	1830	}
1315		1831
1316	void	1832	void
1317	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1833	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318	SV * oldpath
1319	SV * newpath
1320	SV * callback
1321	ALIAS:	1834	ALIAS:
1322	aio_link = REQ_LINK	1835	aio_link = REQ_LINK
1323	aio_symlink = REQ_SYMLINK	1836	aio_symlink = REQ_SYMLINK
1324	aio_rename = REQ_RENAME	1837	aio_rename = REQ_RENAME
1325	PPCODE:	1838	PPCODE:
1326	{	1839	{
1327	dREQ;	1840	dREQ;
1328		1841
1329	req->type = ix;	1842	req->type = ix;
1330	req->fh = newSVsv (oldpath);	1843	req->sv2 = newSVsv (oldpath);
1331	req->data2ptr = SvPVbyte_nolen (req->fh);	1844	req->ptr2 = SvPVbyte_nolen (req->sv2);
1332	req->data = newSVsv (newpath);	1845	req->sv1 = newSVsv (newpath);
1333	req->dataptr = SvPVbyte_nolen (req->data);	1846	req->ptr1 = SvPVbyte_nolen (req->sv1);
1334		1847
1335	REQ_SEND;	1848	REQ_SEND;
1336	}	1849	}
1337		1850
1338	void	1851	void
1339	aio_busy (delay,callback=&PL_sv_undef)	1852	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340	double delay
1341	SV * callback
1342	PPCODE:	1853	PPCODE:
1343	{	1854	{
1344	dREQ;	1855	dREQ;
		1856
		1857	req->type = REQ_MKNOD;
		1858	req->sv1 = newSVsv (pathname);
		1859	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1860	req->mode = (mode_t)mode;
		1861	req->offs = dev;
		1862
		1863	REQ_SEND;
		1864	}
		1865
		1866	void
		1867	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1868	PPCODE:
		1869	{
		1870	dREQ;
1345		1871
1346	req->type = REQ_BUSY;	1872	req->type = REQ_BUSY;
1347	req->fd = delay < 0. ? 0 : delay;	1873	req->nv1 = delay < 0. ? 0. : delay;
1348	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1349		1874
1350	REQ_SEND;	1875	REQ_SEND;
1351	}	1876	}
1352		1877
1353	void	1878	void
1354	aio_group (callback=&PL_sv_undef)	1879	aio_group (SV *callback=&PL_sv_undef)
1355	SV * callback
1356	PROTOTYPE: ;$	1880	PROTOTYPE: ;$
1357	PPCODE:	1881	PPCODE:
1358	{	1882	{
1359	dREQ;	1883	dREQ;
1360		1884
1361	req->type = REQ_GROUP;	1885	req->type = REQ_GROUP;
		1886
1362	req_send (req);	1887	req_send (req);
1363
1364	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1888	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1365	}	1889	}
1366		1890
1367	void	1891	void
1368	aio_nop (callback=&PL_sv_undef)	1892	aio_nop (SV *callback=&PL_sv_undef)
1369	SV * callback
1370	PPCODE:	1893	PPCODE:
1371	{	1894	{
1372	dREQ;	1895	dREQ;
1373		1896
1374	req->type = REQ_NOP;	1897	req->type = REQ_NOP;
1375		1898
1376	REQ_SEND;	1899	REQ_SEND;
1377	}	1900	}
1378		1901
1379	void	1902	int
1380	aioreq_pri (int pri = DEFAULT_PRI)	1903	aioreq_pri (int pri = 0)
1381	CODE:	1904	PROTOTYPE: ;$
		1905	CODE:
		1906	RETVAL = next_pri - PRI_BIAS;
		1907	if (items > 0)
		1908	{
1382	if (pri < PRI_MIN) pri = PRI_MIN;	1909	if (pri < PRI_MIN) pri = PRI_MIN;
1383	if (pri > PRI_MAX) pri = PRI_MAX;	1910	if (pri > PRI_MAX) pri = PRI_MAX;
1384	next_pri = pri + PRI_BIAS;	1911	next_pri = pri + PRI_BIAS;
		1912	}
		1913	OUTPUT:
		1914	RETVAL
1385		1915
1386	void	1916	void
1387	aioreq_nice (int nice = 0)	1917	aioreq_nice (int nice = 0)
1388	CODE:	1918	CODE:
1389	nice = next_pri - nice;	1919	nice = next_pri - nice;
1390	if (nice < PRI_MIN) nice = PRI_MIN;	1920	if (nice < PRI_MIN) nice = PRI_MIN;
1391	if (nice > PRI_MAX) nice = PRI_MAX;	1921	if (nice > PRI_MAX) nice = PRI_MAX;
1392	next_pri = nice + PRI_BIAS;	1922	next_pri = nice + PRI_BIAS;
1393		1923
1394	void	1924	void
1395	flush ()	1925	flush ()
1396	PROTOTYPE:	1926	PROTOTYPE:
1397	CODE:	1927	CODE:
1398	while (nreqs)	1928	while (nreqs)
1399	{	1929	{
1400	poll_wait ();	1930	poll_wait ();
1401	poll_cb (0);	1931	poll_cb ();
1402	}	1932	}
1403		1933
1404	void	1934	int
1405	poll()	1935	poll()
1406	PROTOTYPE:	1936	PROTOTYPE:
1407	CODE:	1937	CODE:
1408	if (nreqs)
1409	{
1410	poll_wait ();	1938	poll_wait ();
1411	poll_cb (0);	1939	RETVAL = poll_cb ();
1412	}	1940	OUTPUT:
		1941	RETVAL
1413		1942
1414	int	1943	int
1415	poll_fileno()	1944	poll_fileno()
1416	PROTOTYPE:	1945	PROTOTYPE:
1417	CODE:	1946	CODE:
…		…
1421		1950
1422	int	1951	int
1423	poll_cb(...)	1952	poll_cb(...)
1424	PROTOTYPE:	1953	PROTOTYPE:
1425	CODE:	1954	CODE:
1426	RETVAL = poll_cb (0);	1955	RETVAL = poll_cb ();
1427	OUTPUT:
1428	RETVAL
1429
1430	int
1431	poll_some(int max = 0)
1432	PROTOTYPE: $
1433	CODE:
1434	RETVAL = poll_cb (max);
1435	OUTPUT:	1956	OUTPUT:
1436	RETVAL	1957	RETVAL
1437		1958
1438	void	1959	void
1439	poll_wait()	1960	poll_wait()
1440	PROTOTYPE:	1961	PROTOTYPE:
1441	CODE:	1962	CODE:
1442	if (nreqs)
1443	poll_wait ();	1963	poll_wait ();
		1964
		1965	void
		1966	setsig (int signum = SIGIO)
		1967	PROTOTYPE: ;$
		1968	CODE:
		1969	{
		1970	if (block_sig_level)
		1971	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1972
		1973	X_LOCK (reslock);
		1974	main_tid = pthread_self ();
		1975	main_sig = signum;
		1976	X_UNLOCK (reslock);
		1977
		1978	if (main_sig && npending)
		1979	pthread_kill (main_tid, main_sig);
		1980	}
		1981
		1982	void
		1983	aio_block (SV *cb)
		1984	PROTOTYPE: &
		1985	PPCODE:
		1986	{
		1987	int count;
		1988
		1989	block_sig ();
		1990	PUSHMARK (SP);
		1991	PUTBACK;
		1992	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1993	SPAGAIN;
		1994	unblock_sig ();
		1995
		1996	if (SvTRUE (ERRSV))
		1997	croak (0);
		1998
		1999	XSRETURN (count);
		2000	}
1444		2001
1445	int	2002	int
1446	nreqs()	2003	nreqs()
1447	PROTOTYPE:	2004	PROTOTYPE:
1448	CODE:	2005	CODE:
1449	RETVAL = nreqs;	2006	RETVAL = nreqs;
1450	OUTPUT:	2007	OUTPUT:
1451	RETVAL	2008	RETVAL
1452		2009
		2010	int
		2011	nready()
		2012	PROTOTYPE:
		2013	CODE:
		2014	RETVAL = get_nready ();
		2015	OUTPUT:
		2016	RETVAL
		2017
		2018	int
		2019	npending()
		2020	PROTOTYPE:
		2021	CODE:
		2022	RETVAL = get_npending ();
		2023	OUTPUT:
		2024	RETVAL
		2025
		2026	int
		2027	nthreads()
		2028	PROTOTYPE:
		2029	CODE:
		2030	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		2031	RETVAL = started;
		2032	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		2033	OUTPUT:
		2034	RETVAL
		2035
1453	PROTOTYPES: DISABLE	2036	PROTOTYPES: DISABLE
1454		2037
1455	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2038	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456		2039
1457	void	2040	void
…		…
1472	PPCODE:	2055	PPCODE:
1473	{	2056	{
1474	int i;	2057	int i;
1475	aio_req req;	2058	aio_req req;
1476		2059
		2060	if (main_sig && !block_sig_level)
		2061	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2062
1477	if (grp->fd == 2)	2063	if (grp->int1 == 2)
1478	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2064	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1479		2065
1480	for (i = 1; i < items; ++i )	2066	for (i = 1; i < items; ++i )
1481	{	2067	{
1482	if (GIMME_V != G_VOID)	2068	if (GIMME_V != G_VOID)
…		…
1484		2070
1485	req = SvAIO_REQ (ST (i));	2071	req = SvAIO_REQ (ST (i));
1486		2072
1487	if (req)	2073	if (req)
1488	{	2074	{
1489	++grp->length;	2075	++grp->size;
1490	req->grp = grp;	2076	req->grp = grp;
1491		2077
1492	req->grp_prev = 0;	2078	req->grp_prev = 0;
1493	req->grp_next = grp->grp_first;	2079	req->grp_next = grp->grp_first;
1494		2080
…		…
1508	void	2094	void
1509	result (aio_req grp, ...)	2095	result (aio_req grp, ...)
1510	CODE:	2096	CODE:
1511	{	2097	{
1512	int i;	2098	int i;
		2099	AV *av;
		2100
		2101	grp->errorno = errno;
		2102
1513	AV *av = newAV ();	2103	av = newAV ();
1514		2104
1515	for (i = 1; i < items; ++i )	2105	for (i = 1; i < items; ++i )
1516	av_push (av, newSVsv (ST (i)));	2106	av_push (av, newSVsv (ST (i)));
1517		2107
1518	SvREFCNT_dec (grp->data);	2108	SvREFCNT_dec (grp->sv1);
1519	grp->data = (SV *)av;	2109	grp->sv1 = (SV *)av;
1520	}	2110	}
		2111
		2112	void
		2113	errno (aio_req grp, int errorno = errno)
		2114	CODE:
		2115	grp->errorno = errorno;
1521		2116
1522	void	2117	void
1523	limit (aio_req grp, int limit)	2118	limit (aio_req grp, int limit)
1524	CODE:	2119	CODE:
1525	grp->fd2 = limit;	2120	grp->int2 = limit;
1526	aio_grp_feed (grp);	2121	aio_grp_feed (grp);
1527		2122
1528	void	2123	void
1529	feed (aio_req grp, SV *callback=&PL_sv_undef)	2124	feed (aio_req grp, SV *callback=&PL_sv_undef)
1530	CODE:	2125	CODE:
1531	{	2126	{
1532	SvREFCNT_dec (grp->fh2);	2127	SvREFCNT_dec (grp->sv2);
1533	grp->fh2 = newSVsv (callback);	2128	grp->sv2 = newSVsv (callback);
1534		2129
1535	if (grp->fd2 <= 0)	2130	if (grp->int2 <= 0)
1536	grp->fd2 = 2;	2131	grp->int2 = 2;
1537		2132
1538	aio_grp_feed (grp);	2133	aio_grp_feed (grp);
1539	}	2134	}
1540		2135

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