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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.75 by root, Thu Oct 26 06:44:48 2006 UTC vs.
Revision 1.111 by root, Sun Mar 30 06:31:49 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux
5	# define _GNU_SOURCE
6	#endif
7
8	#define _REENTRANT 1
9		2
10	#include <errno.h>	3	#include <errno.h>
11		4
12	#include "EXTERN.h"	5	#include "EXTERN.h"
13	#include "perl.h"	6	#include "perl.h"
14	#include "XSUB.h"	7	#include "XSUB.h"
15		8
16	#include "autoconf/config.h"
17
18	#include <pthread.h>
19
20	#include <stddef.h>	9	#include <stddef.h>
		10	#include <stdlib.h>
21	#include <errno.h>	11	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	12	#include <sys/types.h>
25	#include <sys/stat.h>	13	#include <sys/stat.h>
26	#include <limits.h>	14	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	15	#include <fcntl.h>
29	#include <signal.h>
30	#include <sched.h>	16	#include <sched.h>
		17
		18	#ifdef _WIN32
		19
		20	# define SIGIO 0
		21	typedef Direntry_t X_DIRENT;
		22	#undef malloc
		23	#undef free
		24
		25	// perl overrides all those nice win32 functions
		26	# undef open
		27	# undef read
		28	# undef write
		29	# undef send
		30	# undef recv
		31	# undef stat
		32	# undef fstat
		33	# define lstat stat
		34	# undef truncate
		35	# undef ftruncate
		36	# undef open
		37	# undef close
		38	# undef unlink
		39	# undef rmdir
		40	# undef rename
		41	# undef lseek
		42
		43	# define chown(a,b,c) (errno = ENOSYS, -1)
		44	# define fchown(a,b,c) (errno = ENOSYS, -1)
		45	# define fchmod(a,b) (errno = ENOSYS, -1)
		46	# define symlink(a,b) (errno = ENOSYS, -1)
		47	# define readlink(a,b,c) (errno = ENOSYS, -1)
		48	# define mknod(a,b,c) (errno = ENOSYS, -1)
		49	# define truncate(a,b) (errno = ENOSYS, -1)
		50	# define ftruncate(fd,o) chsize ((fd), (o))
		51	# define fsync(fd) _commit (fd)
		52	# define opendir(fd) (errno = ENOSYS, 0)
		53	# define readdir(fd) (errno = ENOSYS, -1)
		54	# define closedir(fd) (errno = ENOSYS, -1)
		55	# define mkdir(a,b) mkdir (a)
		56
		57	#else
		58
		59	# include "autoconf/config.h"
		60	# include <sys/time.h>
		61	# include <sys/select.h>
		62	# include <unistd.h>
		63	# include <utime.h>
		64	# include <signal.h>
		65	typedef struct dirent X_DIRENT;
		66
		67	#endif
31		68
32	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
33	# if __linux	70	# if __linux
34	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
35	# elif __freebsd	72	# elif __freebsd
…		…
42	# else	79	# else
43	# error sendfile support requested but not available	80	# error sendfile support requested but not available
44	# endif	81	# endif
45	#endif	82	#endif
46		83
		84	/* number of seconds after which idle threads exit */
		85	#define IDLE_TIMEOUT 10
		86
47	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
48	#ifndef NAME_MAX	88	#ifndef NAME_MAX
49	# define NAME_MAX 4096	89	# define NAME_MAX 4096
50	#endif	90	#endif
51		91
52	#ifndef PTHREAD_STACK_MIN
53	/* care for broken platforms, e.g. windows */
54	# define PTHREAD_STACK_MIN 16384
55	#endif
56
57	#if __ia64
58	# define STACKSIZE 65536
59	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
60	# define STACKSIZE PTHREAD_STACK_MIN
61	#else
62	# define STACKSIZE 16384
63	#endif
64
65	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
66	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
67		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
68	#define dBUF \	104	#define dBUF \
69	char *aio_buf; \	105	char *aio_buf; \
70	LOCK (wrklock); \	106	X_LOCK (wrklock); \
71	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
72	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
73	if (!aio_buf) \	109	if (!aio_buf) \
74	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
75		113
76	enum {	114	enum {
77	REQ_QUIT,	115	REQ_QUIT,
78	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
79	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
80	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
81	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,
82	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
83	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
84	REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
85	REQ_LINK, REQ_SYMLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
86	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
87	REQ_BUSY,	129	REQ_BUSY,
88	};	130	};
89		131
90	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
92		134
93	typedef struct aio_cb	135	typedef struct aio_cb
94	{	136	{
95	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
96		138
97	SV *data, *callback;	139	SV *callback;
98	SV *fh, *fh2;	140	SV *sv1, *sv2;
99	void *dataptr, *data2ptr;	141	void *ptr1, *ptr2;
100	Stat_t *statdata;
101	off_t offset;	142	off_t offs;
102	size_t length;	143	size_t size;
103	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
104		146
105	STRLEN dataoffset;	147	STRLEN stroffset;
106	int type;	148	int type;
107	int fd, fd2;	149	int int1, int2, int3;
108	int errorno;	150	int errorno;
109	mode_t mode; /* open */	151	mode_t mode; /* open */
110		152
111	unsigned char flags;	153	unsigned char flags;
112	unsigned char pri;	154	unsigned char pri;
…		…
114	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
115	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
116	} aio_cb;	158	} aio_cb;
117		159
118	enum {	160	enum {
119	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) */
120	};	164	};
121		165
122	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
123	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
124		168
…		…
129	DEFAULT_PRI = 0,	173	DEFAULT_PRI = 0,
130	PRI_BIAS = -PRI_MIN,	174	PRI_BIAS = -PRI_MIN,
131	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	175	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
132	};	176	};
133		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 (void)
		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 (void)
		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
134	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
135		225
136	static int started, wanted;	226	static unsigned int started, idle, wanted;
137	static volatile int nreqs;
138	static int respipe [2];
139		227
140	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
141	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
142	#else
143	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
144	#endif
145
146	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
147	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
148
149	/* worker threasd management */	228	/* worker threads management */
150	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
151		230
152	typedef struct worker {	231	typedef struct worker {
153	/* locked by wrklock */	232	/* locked by wrklock */
154	struct worker *prev, *next;	233	struct worker *prev, *next;
155		234
156	pthread_t tid;	235	thread_t tid;
157		236
158	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
159	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
160	void *dbuf;	239	void *dbuf;
161	DIR *dirp;	240	DIR *dirp;
…		…
184	wrk->prev->next = wrk->next;	263	wrk->prev->next = wrk->next;
185		264
186	free (wrk);	265	free (wrk);
187	}	266	}
188		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
189	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
190	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
191	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 (void)
		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 (void)
		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 (void)
		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
192		319
193	/*	320	/*
194	* a somewhat faster data structure might be nice, but	321	* a somewhat faster data structure might be nice, but
195	* with 8 priorities this actually needs <20 insns	322	* with 8 priorities this actually needs <20 insns
196	* per shift, the most expensive operation.	323	* per shift, the most expensive operation.
…		…
242	}	369	}
243		370
244	abort ();	371	abort ();
245	}	372	}
246		373
247	static int poll_cb ();	374	static int poll_cb (void);
248	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
249	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
250	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
251		378
252	/* must be called at most once */	379	/* must be called at most once */
253	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
254	{	381	{
…		…
273	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
274	}	401	}
275		402
276	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
277	{	404	{
		405	block_sig ();
		406
278	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
279	{	408	{
280	int old_len = grp->length;	409	int old_len = grp->size;
281		410
282	if (grp->fh2 && SvOK (grp->fh2))	411	if (grp->sv2 && SvOK (grp->sv2))
283	{	412	{
284	dSP;	413	dSP;
285		414
286	ENTER;	415	ENTER;
287	SAVETMPS;	416	SAVETMPS;
288	PUSHMARK (SP);	417	PUSHMARK (SP);
289	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
290	PUTBACK;	419	PUTBACK;
291	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
292	SPAGAIN;	421	SPAGAIN;
293	FREETMPS;	422	FREETMPS;
294	LEAVE;	423	LEAVE;
295	}	424	}
296		425
297	/* stop if no progress has been made */	426	/* stop if no progress has been made */
298	if (old_len == grp->length)	427	if (old_len == grp->size)
299	{	428	{
300	SvREFCNT_dec (grp->fh2);	429	SvREFCNT_dec (grp->sv2);
301	grp->fh2 = 0;	430	grp->sv2 = 0;
302	break;	431	break;
303	}	432	}
304	}	433	}
		434
		435	unblock_sig ();
305	}	436	}
306		437
307	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
308	{	439	{
309	--grp->length;	440	--grp->size;
310		441
311	/* call feeder, if applicable */	442	/* call feeder, if applicable */
312	aio_grp_feed (grp);	443	aio_grp_feed (grp);
313		444
314	/* finish, if done */	445	/* finish, if done */
315	if (!grp->length && grp->fd)	446	if (!grp->size && grp->int1)
316	{	447	{
		448	block_sig ();
		449
317	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
318	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
319	}	459	}
320	}	460	}
321		461
322	static void poll_wait ()
323	{
324	fd_set rfd;
325
326	while (nreqs)
327	{
328	int size;
329	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
330	LOCK (reslock);
331	#endif
332	size = res_queue.size;
333	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
334	UNLOCK (reslock);
335	#endif
336
337	if (size)
338	return;
339
340	FD_ZERO(&rfd);
341	FD_SET(respipe [0], &rfd);
342
343	select (respipe [0] + 1, &rfd, 0, 0, 0);
344	}
345	}
346
347	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
348	{	463	{
349	dSP;	464	dSP;
		465
		466	if (req->flags & FLAG_SV2_RO_OFF)
		467	SvREADONLY_off (req->sv2);
350		468
351	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
352	{	470	{
353	errno = req->errorno;
354
355	ENTER;	471	ENTER;
356	SAVETMPS;	472	SAVETMPS;
357	PUSHMARK (SP);	473	PUSHMARK (SP);
358	EXTEND (SP, 1);	474	EXTEND (SP, 1);
359		475
…		…
364	SV *rv = &PL_sv_undef;	480	SV *rv = &PL_sv_undef;
365		481
366	if (req->result >= 0)	482	if (req->result >= 0)
367	{	483	{
368	int i;	484	int i;
369	char *buf = req->data2ptr;	485	char *buf = req->ptr2;
370	AV *av = newAV ();	486	AV *av = newAV ();
371		487
372	av_extend (av, req->result - 1);	488	av_extend (av, req->result - 1);
373		489
374	for (i = 0; i < req->result; ++i)	490	for (i = 0; i < req->result; ++i)
…		…
387	break;	503	break;
388		504
389	case REQ_OPEN:	505	case REQ_OPEN:
390	{	506	{
391	/* convert fd to fh */	507	/* convert fd to fh */
392	SV *fh;	508	SV *fh = &PL_sv_undef;
393		509
394	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
395	PUTBACK;	511	{
396	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
397	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);
398		519
399	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	);
400		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
401	PUSHMARK (SP);	532	PUSHs (fh);
402	XPUSHs (sv_2mortal (fh));
403	}	533	}
404	break;	534	break;
405		535
406	case REQ_GROUP:	536	case REQ_GROUP:
407	req->fd = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
408		538
409	if (req->data)	539	if (req->sv1)
410	{	540	{
411	int i;	541	int i;
412	AV *av = (AV *)req->data;	542	AV *av = (AV *)req->sv1;
413		543
414	EXTEND (SP, AvFILL (av) + 1);	544	EXTEND (SP, AvFILL (av) + 1);
415	for (i = 0; i <= AvFILL (av); ++i)	545	for (i = 0; i <= AvFILL (av); ++i)
416	PUSHs (*av_fetch (av, i, 0));	546	PUSHs (*av_fetch (av, i, 0));
417	}	547	}
…		…
419		549
420	case REQ_NOP:	550	case REQ_NOP:
421	case REQ_BUSY:	551	case REQ_BUSY:
422	break;	552	break;
423		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
424	default:	578	default:
425	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
426	break;	580	break;
427	}	581	}
428		582
		583	errno = req->errorno;
429		584
430	PUTBACK;	585	PUTBACK;
431	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
432	SPAGAIN;	587	SPAGAIN;
433		588
434	FREETMPS;	589	FREETMPS;
435	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
436	}	593	}
437		594
438	if (req->grp)	595	if (req->grp)
439	{	596	{
440	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
447	grp->grp_first = req->grp_next;	604	grp->grp_first = req->grp_next;
448		605
449	aio_grp_dec (grp);	606	aio_grp_dec (grp);
450	}	607	}
451		608
452	if (SvTRUE (ERRSV))	609	return !SvTRUE (ERRSV);
453	{
454	req_free (req);
455	croak (0);
456	}
457	}	610	}
458		611
459	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
460	{	613	{
461	if (req->self)	614	if (req->self)
462	{	615	{
463	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
464	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
465	}	618	}
466		619
467	SvREFCNT_dec (req->data);
468	SvREFCNT_dec (req->fh);	620	SvREFCNT_dec (req->sv1);
469	SvREFCNT_dec (req->fh2);	621	SvREFCNT_dec (req->sv2);
470	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
471	Safefree (req->statdata);
472		623
473	if (req->type == REQ_READDIR)	624	if (req->flags & FLAG_PTR2_FREE)
474	free (req->data2ptr);	625	free (req->ptr2);
475		626
476	Safefree (req);	627	Safefree (req);
477	}	628	}
478		629
479	static void req_cancel_subs (aio_req grp)	630	static void req_cancel_subs (aio_req grp)
…		…
481	aio_req sub;	632	aio_req sub;
482		633
483	if (grp->type != REQ_GROUP)	634	if (grp->type != REQ_GROUP)
484	return;	635	return;
485		636
486	SvREFCNT_dec (grp->fh2);	637	SvREFCNT_dec (grp->sv2);
487	grp->fh2 = 0;	638	grp->sv2 = 0;
488		639
489	for (sub = grp->grp_first; sub; sub = sub->grp_next)	640	for (sub = grp->grp_first; sub; sub = sub->grp_next)
490	req_cancel (sub);	641	req_cancel (sub);
491	}	642	}
492		643
…		…
495	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
496		647
497	req_cancel_subs (req);	648	req_cancel_subs (req);
498	}	649	}
499		650
500	static int poll_cb ()	651	#ifdef USE_SOCKETS_AS_HANDLES
501	{	652	# define TO_SOCKET(x) (win32_get_osfhandle (x))
502	dSP;	653	#else
503	int count = 0;	654	# define TO_SOCKET(x) (x)
504	int do_croak = 0;	655	#endif
505	aio_req req;
506		656
507	for (;;)	657	static void
		658	create_respipe (void)
		659	{
		660	int old_readfd = respipe [0];
		661
		662	if (respipe [1] >= 0)
		663	respipe_close (TO_SOCKET (respipe [1]));
		664
		665	#ifdef _WIN32
		666	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		667	#else
		668	if (pipe (respipe))
		669	#endif
		670	croak ("unable to initialize result pipe");
		671
		672	if (old_readfd >= 0)
508	{	673	{
509	LOCK (reslock);	674	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
510	req = reqq_shift (&res_queue);	675	croak ("unable to initialize result pipe(2)");
511		676
512	if (req)	677	respipe_close (respipe [0]);
513	{	678	respipe [0] = old_readfd;
514	if (!res_queue.size)
515	{
516	/* read any signals sent by the worker threads */
517	char buf [32];
518	while (read (respipe [0], buf, 32) == 32)
519	;
520	}
521	}
522
523	UNLOCK (reslock);
524
525	if (!req)
526	break;
527
528	--nreqs;
529
530	if (req->type == REQ_QUIT)
531	started--;
532	else if (req->type == REQ_GROUP && req->length)
533	{
534	req->fd = 1; /* mark request as delayed */
535	continue;
536	}
537	else
538	{
539	if (req->type == REQ_READ)
540	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
541
542	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
543	SvREADONLY_off (req->data);
544
545	if (req->statdata)
546	{
547	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
548	PL_laststatval = req->result;
549	PL_statcache = *(req->statdata);
550	}
551
552	req_invoke (req);
553
554	count++;
555	}
556
557	req_free (req);
558	}	679	}
559		680
560	return count;	681	#ifdef _WIN32
561	}	682	int arg = 1;
		683	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		684	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		685	#else
		686	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		687	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		688	#endif
		689	croak ("unable to initialize result pipe(3)");
562		690
563	static void *aio_proc(void *arg);	691	respipe_osf [0] = TO_SOCKET (respipe [0]);
		692	respipe_osf [1] = TO_SOCKET (respipe [1]);
		693	}
		694
		695	X_THREAD_PROC (aio_proc);
564		696
565	static void start_thread (void)	697	static void start_thread (void)
566	{	698	{
567	sigset_t fullsigset, oldsigset;
568	pthread_attr_t attr;
569
570	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
571		700
572	if (!wrk)	701	if (!wrk)
573	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
574		703
575	pthread_attr_init (&attr);
576	pthread_attr_setstacksize (&attr, STACKSIZE);
577	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
578
579	sigfillset (&fullsigset);
580
581	LOCK (wrklock);	704	X_LOCK (wrklock);
582	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
583		705
584	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
585	{	707	{
586	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
587	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
588	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
589	wrk_first.next = wrk;	711	wrk_first.next = wrk;
590	started++;	712	++started;
591	}	713	}
592	else	714	else
593	free (wrk);	715	free (wrk);
594		716
595	sigprocmask (SIG_SETMASK, &oldsigset, 0);
596	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
		718	}
		719
		720	static void maybe_start_thread (void)
		721	{
		722	if (get_nthreads () >= wanted)
		723	return;
		724
		725	/* todo: maybe use idle here, but might be less exact */
		726	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		727	return;
		728
		729	start_thread ();
597	}	730	}
598		731
599	static void req_send (aio_req req)	732	static void req_send (aio_req req)
600	{	733	{
601	while (started < wanted && nreqs >= started)	734	block_sig ();
602	start_thread ();
603		735
604	++nreqs;	736	++nreqs;
605		737
606	LOCK (reqlock);	738	X_LOCK (reqlock);
		739	++nready;
607	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
608	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
609	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
		743
		744	unblock_sig ();
		745
		746	maybe_start_thread ();
610	}	747	}
611		748
612	static void end_thread (void)	749	static void end_thread (void)
613	{	750	{
614	aio_req req;	751	aio_req req;
…		…
616	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
617		754
618	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
619	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
620		757
621	req_send (req);	758	X_LOCK (reqlock);
		759	reqq_push (&req_queue, req);
		760	X_COND_SIGNAL (reqwait);
		761	X_UNLOCK (reqlock);
		762
		763	X_LOCK (wrklock);
		764	--started;
		765	X_UNLOCK (wrklock);
		766	}
		767
		768	static void set_max_idle (int nthreads)
		769	{
		770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		771	max_idle = nthreads <= 0 ? 1 : nthreads;
		772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
622	}	773	}
623		774
624	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
625	{	776	{
626	if (wanted < nthreads)	777	if (wanted < nthreads)
627	wanted = nthreads;	778	wanted = nthreads;
628	}	779	}
629		780
630	static void max_parallel (int nthreads)	781	static void max_parallel (int nthreads)
631	{	782	{
632	int cur = started;
633
634	if (wanted > nthreads)	783	if (wanted > nthreads)
635	wanted = nthreads;	784	wanted = nthreads;
636		785
637	while (cur > wanted)	786	while (started > wanted)
		787	end_thread ();
		788	}
		789
		790	static void poll_wait (void)
		791	{
		792	fd_set rfd;
		793
		794	while (nreqs)
638	{	795	{
		796	int size;
		797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		798	size = res_queue.size;
		799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		800
		801	if (size)
		802	return;
		803
639	end_thread ();	804	maybe_start_thread ();
640	cur--;	805
		806	FD_ZERO (&rfd);
		807	FD_SET (respipe [0], &rfd);
		808
		809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
641	}	810	}
		811	}
642		812
643	while (started > wanted)	813	static int poll_cb (void)
		814	{
		815	dSP;
		816	int count = 0;
		817	int maxreqs = max_poll_reqs;
		818	int do_croak = 0;
		819	struct timeval tv_start, tv_now;
		820	aio_req req;
		821
		822	if (max_poll_time)
		823	gettimeofday (&tv_start, 0);
		824
		825	block_sig ();
		826
		827	for (;;)
644	{	828	{
		829	for (;;)
		830	{
		831	maybe_start_thread ();
		832
		833	X_LOCK (reslock);
		834	req = reqq_shift (&res_queue);
		835
		836	if (req)
		837	{
		838	--npending;
		839
		840	if (!res_queue.size)
		841	{
		842	/* read any signals sent by the worker threads */
		843	char buf [4];
		844	while (respipe_read (respipe [0], buf, 4) == 4)
		845	;
		846	}
		847	}
		848
		849	X_UNLOCK (reslock);
		850
		851	if (!req)
		852	break;
		853
		854	--nreqs;
		855
		856	if (req->type == REQ_GROUP && req->size)
		857	{
		858	req->int1 = 1; /* mark request as delayed */
		859	continue;
		860	}
		861	else
		862	{
		863	if (!req_invoke (req))
		864	{
		865	req_destroy (req);
		866	unblock_sig ();
		867	croak (0);
		868	}
		869
		870	count++;
		871	}
		872
		873	req_destroy (req);
		874
		875	if (maxreqs && !--maxreqs)
		876	break;
		877
		878	if (max_poll_time)
		879	{
		880	gettimeofday (&tv_now, 0);
		881
		882	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		883	break;
		884	}
		885	}
		886
		887	if (nreqs <= max_outstanding)
		888	break;
		889
645	poll_wait ();	890	poll_wait ();
646	poll_cb ();	891
		892	++maxreqs;
647	}	893	}
648	}
649		894
650	static void create_pipe ()	895	unblock_sig ();
651	{	896	return count;
652	if (pipe (respipe))
653	croak ("unable to initialize result pipe");
654
655	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
656	croak ("cannot set result pipe to nonblocking mode");
657
658	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
659	croak ("cannot set result pipe to nonblocking mode");
660	}	897	}
661		898
662	/*****************************************************************************/	899	/*****************************************************************************/
663	/* work around various missing functions */	900	/* work around various missing functions */
664		901
…		…
669	/*	906	/*
670	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
671	* normal read/write by using a mutex. slows down execution a lot,	908	* normal read/write by using a mutex. slows down execution a lot,
672	* but that's your problem, not mine.	909	* but that's your problem, not mine.
673	*/	910	*/
674	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
675		912
676	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	913	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
677	{	914	{
678	ssize_t res;	915	ssize_t res;
679	off_t ooffset;	916	off_t ooffset;
680		917
681	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
682	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
683	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
684	res = read (fd, buf, count);	921	res = read (fd, buf, count);
685	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
686	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
687		924
688	return res;	925	return res;
689	}	926	}
690		927
691	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	928	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
692	{	929	{
693	ssize_t res;	930	ssize_t res;
694	off_t ooffset;	931	off_t ooffset;
695		932
696	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
697	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
698	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
699	res = write (fd, buf, count);	936	res = write (fd, buf, count);
700	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
701	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
702		939
703	return res;	940	return res;
704	}	941	}
		942	#endif
		943
		944	#ifndef HAVE_FUTIMES
		945
		946	# define utimes(path,times) aio_utimes (path, times)
		947	# define futimes(fd,times) aio_futimes (fd, times)
		948
		949	int aio_utimes (const char *filename, const struct timeval times[2])
		950	{
		951	if (times)
		952	{
		953	struct utimbuf buf;
		954
		955	buf.actime = times[0].tv_sec;
		956	buf.modtime = times[1].tv_sec;
		957
		958	return utime (filename, &buf);
		959	}
		960	else
		961	return utime (filename, 0);
		962	}
		963
		964	int aio_futimes (int fd, const struct timeval tv[2])
		965	{
		966	errno = ENOSYS;
		967	return -1;
		968	}
		969
705	#endif	970	#endif
706		971
707	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
708	# define fdatasync fsync	973	# define fdatasync fsync
709	#endif	974	#endif
…		…
711	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
712	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
713		978
714	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	979	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
715	{	980	{
		981	size_t todo = count;
716	dBUF;	982	dBUF;
717		983
718	while (count > 0)	984	while (todo > 0)
719	{	985	{
720	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
721		987
722	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
723	offset += len;	989	offset += len;
724	count -= len;	990	todo -= len;
725	}	991	}
726		992
727	errno = 0;	993	errno = 0;
		994	return count;
728	}	995	}
729		996
730	#endif	997	#endif
731		998
732	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
733	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
734		1001
735	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
736		1003
737	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	1004	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
738	{	1005	{
739	struct dirent *e;	1006	X_DIRENT *e;
740	int errorno;	1007	int errorno;
741		1008
742	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
743		1010
744	e = readdir (dirp);	1011	e = readdir (dirp);
745	errorno = errno;	1012	errorno = errno;
746		1013
747	if (e)	1014	if (e)
…		…
750	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
751	}	1018	}
752	else	1019	else
753	*res = 0;	1020	*res = 0;
754		1021
755	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
756		1023
757	errno = errorno;	1024	errno = errorno;
758	return e ? 0 : -1;	1025	return e ? 0 : -1;
759	}	1026	}
760	#endif	1027	#endif
…		…
779	{	1046	{
780	off_t sbytes;	1047	off_t sbytes;
781	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	1048	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
782		1049
783	if (res < 0 && sbytes)	1050	if (res < 0 && sbytes)
784	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	1051	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
785	res = sbytes;	1052	res = sbytes;
786	}	1053	}
787		1054
788	# elif __hpux	1055	# elif __hpux
789	res = sendfile (ofd, ifd, offset, count, 0, 0);	1056	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
856	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
857	{	1124	{
858	DIR *dirp;	1125	DIR *dirp;
859	union	1126	union
860	{	1127	{
861	struct dirent d;	1128	X_DIRENT d;
862	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
863	} *u;	1130	} *u;
864	struct dirent *entp;	1131	X_DIRENT *entp;
865	char *name, *names;	1132	char *name, *names;
866	int memlen = 4096;	1133	int memlen = 4096;
867	int memofs = 0;	1134	int memofs = 0;
868	int res = 0;	1135	int res = 0;
869	int errorno;
870		1136
871	LOCK (wrklock);	1137	X_LOCK (wrklock);
872	self->dirp = dirp = opendir (req->dataptr);	1138	self->dirp = dirp = opendir (req->ptr1);
873	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
		1140	req->flags |= FLAG_PTR2_FREE;
		1141	req->ptr2 = names = malloc (memlen);
874	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
875
876	req->data2ptr = names = malloc (memlen);
877		1143
878	if (dirp && u && names)	1144	if (dirp && u && names)
879	for (;;)	1145	for (;;)
880	{	1146	{
881	errno = 0;	1147	errno = 0;
…		…
893	res++;	1159	res++;
894		1160
895	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
896	{	1162	{
897	memlen *= 2;	1163	memlen *= 2;
898	LOCK (wrklock);	1164	X_LOCK (wrklock);
899	req->data2ptr = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
900	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
901		1167
902	if (!names)	1168	if (!names)
903	break;	1169	break;
904	}	1170	}
905		1171
…		…
914	req->result = res;	1180	req->result = res;
915	}	1181	}
916		1182
917	/*****************************************************************************/	1183	/*****************************************************************************/
918		1184
919	static void *aio_proc (void *thr_arg)	1185	X_THREAD_PROC (aio_proc)
920	{	1186	{
		1187	{//D
921	aio_req req;	1188	aio_req req;
922	int type;	1189	struct timespec ts;
923	worker *self = (worker *)thr_arg;	1190	worker *self = (worker *)thr_arg;
924		1191
925	do	1192	/* try to distribute timeouts somewhat randomly */
		1193	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1194
		1195	for (;;)
926	{	1196	{
		1197	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1198
927	LOCK (reqlock);	1199	X_LOCK (reqlock);
928		1200
929	for (;;)	1201	for (;;)
930	{	1202	{
931	self->req = req = reqq_shift (&req_queue);	1203	self->req = req = reqq_shift (&req_queue);
932		1204
933	if (req)	1205	if (req)
934	break;	1206	break;
935		1207
936	pthread_cond_wait (&reqwait, &reqlock);	1208	++idle;
		1209
		1210	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1211	== ETIMEDOUT)
		1212	{
		1213	if (idle > max_idle)
		1214	{
		1215	--idle;
		1216	X_UNLOCK (reqlock);
		1217	X_LOCK (wrklock);
		1218	--started;
		1219	X_UNLOCK (wrklock);
		1220	goto quit;
		1221	}
		1222
		1223	/* we are allowed to idle, so do so without any timeout */
		1224	X_COND_WAIT (reqwait, reqlock);
		1225	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1226	}
		1227
		1228	--idle;
937	}	1229	}
938		1230
		1231	--nready;
		1232
939	UNLOCK (reqlock);	1233	X_UNLOCK (reqlock);
940		1234
941	errno = 0; /* strictly unnecessary */	1235	errno = 0; /* strictly unnecessary */
942	type = req->type; /* remember type for QUIT check */
943		1236
944	if (!(req->flags & FLAG_CANCELLED))	1237	if (!(req->flags & FLAG_CANCELLED))
945	switch (type)	1238	switch (req->type)
946	{	1239	{
947	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1240	case REQ_READ: req->result = req->offs >= 0
948	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1241	? pread (req->int1, req->ptr1, req->size, req->offs)
		1242	: read (req->int1, req->ptr1, req->size); break;
		1243	case REQ_WRITE: req->result = req->offs >= 0
		1244	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1245	: write (req->int1, req->ptr1, req->size); break;
949		1246
950	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1247	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;	1248	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
952		1249
953	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1250	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;	1251	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;	1252	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
956		1253
		1254	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1255	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1256	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1257	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1258	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1259	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1260
957	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1261	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
958	case REQ_CLOSE: req->result = close (req->fd); break;	1262	case REQ_CLOSE: req->result = close (req->int1); break;
959	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1263	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
960	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1264	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1265	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
961	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1266	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
962	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1267	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
963	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1268	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1269	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1270	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
964		1271
965	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1272	case REQ_SYNC: req->result = 0; sync (); break;
966	case REQ_FSYNC: req->result = fsync (req->fd); break;	1273	case REQ_FSYNC: req->result = fsync (req->int1); break;
		1274	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
		1275
967	case REQ_READDIR: scandir_ (req, self); break;	1276	case REQ_READDIR: scandir_ (req, self); break;
968		1277
969	case REQ_BUSY:	1278	case REQ_BUSY:
		1279	#ifdef _WIN32
		1280	Sleep (req->nv1 * 1000.);
		1281	#else
970	{	1282	{
971	struct timeval tv;	1283	struct timeval tv;
972		1284
973	tv.tv_sec = req->fd;	1285	tv.tv_sec = req->nv1;
974	tv.tv_usec = req->fd2;	1286	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
975		1287
976	req->result = select (0, 0, 0, 0, &tv);	1288	req->result = select (0, 0, 0, 0, &tv);
977	}	1289	}
		1290	#endif
		1291	break;
		1292
		1293	case REQ_UTIME:
		1294	case REQ_FUTIME:
		1295	{
		1296	struct timeval tv[2];
		1297	struct timeval *times;
		1298
		1299	if (req->nv1 != -1. || req->nv2 != -1.)
		1300	{
		1301	tv[0].tv_sec = req->nv1;
		1302	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1303	tv[1].tv_sec = req->nv2;
		1304	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1305
		1306	times = tv;
		1307	}
		1308	else
		1309	times = 0;
		1310
		1311
		1312	req->result = req->type == REQ_FUTIME
		1313	? futimes (req->int1, times)
		1314	: utimes (req->ptr1, times);
		1315	}
978		1316
979	case REQ_GROUP:	1317	case REQ_GROUP:
980	case REQ_NOP:	1318	case REQ_NOP:
		1319	break;
		1320
981	case REQ_QUIT:	1321	case REQ_QUIT:
982	break;	1322	goto quit;
983		1323
984	default:	1324	default:
985	req->result = ENOSYS;	1325	req->result = -1;
986	break;	1326	break;
987	}	1327	}
988		1328
989	req->errorno = errno;	1329	req->errorno = errno;
990		1330
991	LOCK (reslock);	1331	X_LOCK (reslock);
		1332
		1333	++npending;
992		1334
993	if (!reqq_push (&res_queue, req))	1335	if (!reqq_push (&res_queue, req))
		1336	{
994	/* write a dummy byte to the pipe so fh becomes ready */	1337	/* write a dummy byte to the pipe so fh becomes ready */
995	write (respipe [1], &respipe, 1);	1338	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1339
		1340	/* optionally signal the main thread asynchronously */
		1341	if (main_sig)
		1342	pthread_kill (main_tid, main_sig);
		1343	}
996		1344
997	self->req = 0;	1345	self->req = 0;
998	worker_clear (self);	1346	worker_clear (self);
999		1347
1000	UNLOCK (reslock);	1348	X_UNLOCK (reslock);
1001	}	1349	}
1002	while (type != REQ_QUIT);
1003		1350
		1351	quit:
1004	LOCK (wrklock);	1352	X_LOCK (wrklock);
1005	worker_free (self);	1353	worker_free (self);
1006	UNLOCK (wrklock);	1354	X_UNLOCK (wrklock);
1007		1355
1008	return 0;	1356	return 0;
		1357	}//D
1009	}	1358	}
1010		1359
1011	/*****************************************************************************/	1360	/*****************************************************************************/
1012		1361
1013	static void atfork_prepare (void)	1362	static void atfork_prepare (void)
1014	{	1363	{
1015	LOCK (wrklock);	1364	X_LOCK (wrklock);
1016	LOCK (reqlock);	1365	X_LOCK (reqlock);
1017	LOCK (reslock);	1366	X_LOCK (reslock);
1018	#if !HAVE_PREADWRITE	1367	#if !HAVE_PREADWRITE
1019	LOCK (preadwritelock);	1368	X_LOCK (preadwritelock);
1020	#endif	1369	#endif
1021	#if !HAVE_READDIR_R	1370	#if !HAVE_READDIR_R
1022	LOCK (readdirlock);	1371	X_LOCK (readdirlock);
1023	#endif	1372	#endif
1024	}	1373	}
1025		1374
1026	static void atfork_parent (void)	1375	static void atfork_parent (void)
1027	{	1376	{
1028	#if !HAVE_READDIR_R	1377	#if !HAVE_READDIR_R
1029	UNLOCK (readdirlock);	1378	X_UNLOCK (readdirlock);
1030	#endif	1379	#endif
1031	#if !HAVE_PREADWRITE	1380	#if !HAVE_PREADWRITE
1032	UNLOCK (preadwritelock);	1381	X_UNLOCK (preadwritelock);
1033	#endif	1382	#endif
1034	UNLOCK (reslock);	1383	X_UNLOCK (reslock);
1035	UNLOCK (reqlock);	1384	X_UNLOCK (reqlock);
1036	UNLOCK (wrklock);	1385	X_UNLOCK (wrklock);
1037	}	1386	}
1038		1387
1039	static void atfork_child (void)	1388	static void atfork_child (void)
1040	{	1389	{
1041	aio_req prv;	1390	aio_req prv;
1042		1391
1043	while (prv = reqq_shift (&req_queue))	1392	while (prv = reqq_shift (&req_queue))
1044	req_free (prv);	1393	req_destroy (prv);
1045		1394
1046	while (prv = reqq_shift (&res_queue))	1395	while (prv = reqq_shift (&res_queue))
1047	req_free (prv);	1396	req_destroy (prv);
1048		1397
1049	while (wrk_first.next != &wrk_first)	1398	while (wrk_first.next != &wrk_first)
1050	{	1399	{
1051	worker *wrk = wrk_first.next;	1400	worker *wrk = wrk_first.next;
1052		1401
1053	if (wrk->req)	1402	if (wrk->req)
1054	req_free (wrk->req);	1403	req_destroy (wrk->req);
1055		1404
1056	worker_clear (wrk);	1405	worker_clear (wrk);
1057	worker_free (wrk);	1406	worker_free (wrk);
1058	}	1407	}
1059		1408
1060	started = 0;	1409	started = 0;
		1410	idle = 0;
1061	nreqs = 0;	1411	nreqs = 0;
		1412	nready = 0;
		1413	npending = 0;
1062		1414
1063	close (respipe [0]);
1064	close (respipe [1]);
1065	create_pipe ();	1415	create_respipe ();
1066		1416
1067	atfork_parent ();	1417	atfork_parent ();
1068	}	1418	}
1069		1419
1070	#define dREQ \	1420	#define dREQ \
…		…
1092		1442
1093	PROTOTYPES: ENABLE	1443	PROTOTYPES: ENABLE
1094		1444
1095	BOOT:	1445	BOOT:
1096	{	1446	{
1097	HV *stash = gv_stashpv ("IO::AIO", 1);	1447	stash = gv_stashpv ("IO::AIO", 1);
		1448
1098	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1449	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1450	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1451	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1452	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1453	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1454	#ifdef _WIN32
		1455	X_MUTEX_CHECK (wrklock);
		1456	X_MUTEX_CHECK (reslock);
		1457	X_MUTEX_CHECK (reqlock);
		1458	X_MUTEX_CHECK (reqwait);
		1459	X_MUTEX_CHECK (preadwritelock);
		1460	X_MUTEX_CHECK (readdirlock);
1101		1461
1102	create_pipe ();	1462	X_COND_CHECK (reqwait);
		1463	#else
		1464	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1465	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1466	#endif
		1467
		1468	create_respipe ();
		1469
1103	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1470	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1104	}	1471	}
1105		1472
1106	void	1473	void
1107	min_parallel (nthreads)	1474	max_poll_reqs (int nreqs)
1108	int nthreads
1109	PROTOTYPE: $	1475	PROTOTYPE: $
		1476	CODE:
		1477	max_poll_reqs = nreqs;
1110		1478
1111	void	1479	void
1112	max_parallel (nthreads)	1480	max_poll_time (double nseconds)
1113	int nthreads
1114	PROTOTYPE: $	1481	PROTOTYPE: $
		1482	CODE:
		1483	max_poll_time = nseconds * AIO_TICKS;
1115		1484
1116	void	1485	void
		1486	min_parallel (int nthreads)
		1487	PROTOTYPE: $
		1488
		1489	void
		1490	max_parallel (int nthreads)
		1491	PROTOTYPE: $
		1492
		1493	void
		1494	max_idle (int nthreads)
		1495	PROTOTYPE: $
		1496	CODE:
		1497	set_max_idle (nthreads);
		1498
		1499	int
		1500	max_outstanding (int maxreqs)
		1501	PROTOTYPE: $
		1502	CODE:
		1503	RETVAL = max_outstanding;
		1504	max_outstanding = maxreqs;
		1505	OUTPUT:
		1506	RETVAL
		1507
		1508	void
1117	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1509	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: $$$;$	1510	PROTOTYPE: $$$;$
1123	PPCODE:	1511	PPCODE:
1124	{	1512	{
1125	dREQ;	1513	dREQ;
1126		1514
1127	req->type = REQ_OPEN;	1515	req->type = REQ_OPEN;
1128	req->data = newSVsv (pathname);	1516	req->sv1 = newSVsv (pathname);
1129	req->dataptr = SvPVbyte_nolen (req->data);	1517	req->ptr1 = SvPVbyte_nolen (req->sv1);
1130	req->fd = flags;	1518	req->int1 = flags;
1131	req->mode = mode;	1519	req->mode = mode;
1132		1520
1133	REQ_SEND;	1521	REQ_SEND;
1134	}	1522	}
1135		1523
1136	void	1524	void
1137	aio_close (fh,callback=&PL_sv_undef)	1525	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1138	SV * fh
1139	SV * callback
1140	PROTOTYPE: $;$	1526	PROTOTYPE: $;$
1141	ALIAS:	1527	ALIAS:
1142	aio_close = REQ_CLOSE
1143	aio_fsync = REQ_FSYNC	1528	aio_fsync = REQ_FSYNC
1144	aio_fdatasync = REQ_FDATASYNC	1529	aio_fdatasync = REQ_FDATASYNC
1145	PPCODE:	1530	PPCODE:
1146	{	1531	{
1147	dREQ;	1532	dREQ;
1148		1533
1149	req->type = ix;	1534	req->type = ix;
1150	req->fh = newSVsv (fh);	1535	req->sv1 = newSVsv (fh);
1151	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1536	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152		1537
1153	REQ_SEND (req);	1538	REQ_SEND (req);
1154	}	1539	}
1155		1540
		1541	int
		1542	_dup (int fd)
		1543	PROTOTYPE: $
		1544	CODE:
		1545	RETVAL = dup (fd);
		1546	OUTPUT:
		1547	RETVAL
		1548
1156	void	1549	void
		1550	_aio_close (int fd, SV *callback=&PL_sv_undef)
		1551	PROTOTYPE: $;$
		1552	PPCODE:
		1553	{
		1554	dREQ;
		1555
		1556	req->type = REQ_CLOSE;
		1557	req->int1 = fd;
		1558
		1559	REQ_SEND (req);
		1560	}
		1561
		1562	void
1157	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1563	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:	1564	ALIAS:
1165	aio_read = REQ_READ	1565	aio_read = REQ_READ
1166	aio_write = REQ_WRITE	1566	aio_write = REQ_WRITE
1167	PROTOTYPE: $$$$$;$	1567	PROTOTYPE: $$$$$;$
1168	PPCODE:	1568	PPCODE:
1169	{	1569	{
1170	aio_req req;
1171	STRLEN svlen;	1570	STRLEN svlen;
1172	char *svptr = SvPVbyte (data, svlen);	1571	char *svptr = SvPVbyte (data, svlen);
		1572	UV len = SvUV (length);
1173		1573
1174	SvUPGRADE (data, SVt_PV);	1574	SvUPGRADE (data, SVt_PV);
1175	SvPOK_on (data);	1575	SvPOK_on (data);
1176		1576
1177	if (dataoffset < 0)	1577	if (dataoffset < 0)
1178	dataoffset += svlen;	1578	dataoffset += svlen;
1179		1579
1180	if (dataoffset < 0 || dataoffset > svlen)	1580	if (dataoffset < 0 || dataoffset > svlen)
1181	croak ("data offset outside of string");	1581	croak ("dataoffset outside of data scalar");
1182		1582
1183	if (ix == REQ_WRITE)	1583	if (ix == REQ_WRITE)
1184	{	1584	{
1185	/* write: check length and adjust. */	1585	/* write: check length and adjust. */
1186	if (length < 0 || length + dataoffset > svlen)	1586	if (!SvOK (length) || len + dataoffset > svlen)
1187	length = svlen - dataoffset;	1587	len = svlen - dataoffset;
1188	}	1588	}
1189	else	1589	else
1190	{	1590	{
1191	/* read: grow scalar as necessary */	1591	/* read: grow scalar as necessary */
1192	svptr = SvGROW (data, length + dataoffset);	1592	svptr = SvGROW (data, len + dataoffset + 1);
1193	}	1593	}
1194		1594
1195	if (length < 0)	1595	if (len < 0)
1196	croak ("length must not be negative");	1596	croak ("length must not be negative");
1197		1597
1198	{	1598	{
1199	dREQ;	1599	dREQ;
1200		1600
1201	req->type = ix;	1601	req->type = ix;
1202	req->fh = newSVsv (fh);	1602	req->sv1 = newSVsv (fh);
1203	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1603	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1204	: IoOFP (sv_2io (fh)));	1604	: IoOFP (sv_2io (fh)));
		1605	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205	req->offset = offset;	1606	req->size = len;
1206	req->length = length;
1207	req->data = SvREFCNT_inc (data);	1607	req->sv2 = SvREFCNT_inc (data);
1208	req->dataptr = (char *)svptr + dataoffset;	1608	req->ptr1 = (char *)svptr + dataoffset;
		1609	req->stroffset = dataoffset;
1209		1610
1210	if (!SvREADONLY (data))	1611	if (!SvREADONLY (data))
1211	{	1612	{
1212	SvREADONLY_on (data);	1613	SvREADONLY_on (data);
1213	req->data2ptr = (void *)data;	1614	req->flags |= FLAG_SV2_RO_OFF;
1214	}	1615	}
1215		1616
1216	REQ_SEND;	1617	REQ_SEND;
1217	}	1618	}
1218	}	1619	}
1219		1620
1220	void	1621	void
		1622	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1623	PROTOTYPE: $$;$
		1624	PPCODE:
		1625	{
		1626	SV *data;
		1627	dREQ;
		1628
		1629	data = newSV (NAME_MAX);
		1630	SvPOK_on (data);
		1631
		1632	req->type = REQ_READLINK;
		1633	req->sv1 = newSVsv (path);
		1634	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1635	req->sv2 = data;
		1636	req->ptr1 = SvPVbyte_nolen (data);
		1637
		1638	REQ_SEND;
		1639	}
		1640
		1641	void
1221	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1642	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: $$$$;$	1643	PROTOTYPE: $$$$;$
1228	PPCODE:	1644	PPCODE:
1229	{	1645	{
1230	dREQ;	1646	dREQ;
1231		1647
1232	req->type = REQ_SENDFILE;	1648	req->type = REQ_SENDFILE;
1233	req->fh = newSVsv (out_fh);	1649	req->sv1 = newSVsv (out_fh);
1234	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1650	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235	req->fh2 = newSVsv (in_fh);	1651	req->sv2 = newSVsv (in_fh);
1236	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1652	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237	req->offset = in_offset;	1653	req->offs = SvVAL64 (in_offset);
1238	req->length = length;	1654	req->size = length;
1239		1655
1240	REQ_SEND;	1656	REQ_SEND;
1241	}	1657	}
1242		1658
1243	void	1659	void
1244	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1660	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1245	SV * fh
1246	UV offset
1247	IV length
1248	SV * callback
1249	PROTOTYPE: $$$;$	1661	PROTOTYPE: $$$;$
1250	PPCODE:	1662	PPCODE:
1251	{	1663	{
1252	dREQ;	1664	dREQ;
1253		1665
1254	req->type = REQ_READAHEAD;	1666	req->type = REQ_READAHEAD;
1255	req->fh = newSVsv (fh);	1667	req->sv1 = newSVsv (fh);
1256	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1668	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257	req->offset = offset;	1669	req->offs = SvVAL64 (offset);
1258	req->length = length;	1670	req->size = length;
1259		1671
1260	REQ_SEND;	1672	REQ_SEND;
1261	}	1673	}
1262		1674
1263	void	1675	void
1264	aio_stat (fh_or_path,callback=&PL_sv_undef)	1676	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265	SV * fh_or_path
1266	SV * callback
1267	ALIAS:	1677	ALIAS:
1268	aio_stat = REQ_STAT	1678	aio_stat = REQ_STAT
1269	aio_lstat = REQ_LSTAT	1679	aio_lstat = REQ_LSTAT
1270	PPCODE:	1680	PPCODE:
1271	{	1681	{
1272	dREQ;	1682	dREQ;
1273		1683
1274	New (0, req->statdata, 1, Stat_t);	1684	req->ptr2 = malloc (sizeof (Stat_t));
1275	if (!req->statdata)	1685	if (!req->ptr2)
1276	{	1686	{
1277	req_free (req);	1687	req_destroy (req);
1278	croak ("out of memory during aio_req->statdata allocation");	1688	croak ("out of memory during aio_stat statdata allocation");
1279	}	1689	}
		1690
		1691	req->flags |= FLAG_PTR2_FREE;
		1692	req->sv1 = newSVsv (fh_or_path);
1280		1693
1281	if (SvPOK (fh_or_path))	1694	if (SvPOK (fh_or_path))
1282	{	1695	{
1283	req->type = ix;	1696	req->type = ix;
1284	req->data = newSVsv (fh_or_path);
1285	req->dataptr = SvPVbyte_nolen (req->data);	1697	req->ptr1 = SvPVbyte_nolen (req->sv1);
1286	}	1698	}
1287	else	1699	else
1288	{	1700	{
1289	req->type = REQ_FSTAT;	1701	req->type = REQ_FSTAT;
1290	req->fh = newSVsv (fh_or_path);
1291	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1702	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292	}	1703	}
1293		1704
1294	REQ_SEND;	1705	REQ_SEND;
1295	}	1706	}
1296		1707
1297	void	1708	void
		1709	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1710	PPCODE:
		1711	{
		1712	dREQ;
		1713
		1714	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1715	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1716	req->sv1 = newSVsv (fh_or_path);
		1717
		1718	if (SvPOK (fh_or_path))
		1719	{
		1720	req->type = REQ_UTIME;
		1721	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1722	}
		1723	else
		1724	{
		1725	req->type = REQ_FUTIME;
		1726	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1727	}
		1728
		1729	REQ_SEND;
		1730	}
		1731
		1732	void
		1733	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1734	PPCODE:
		1735	{
		1736	dREQ;
		1737
		1738	req->sv1 = newSVsv (fh_or_path);
		1739	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1740
		1741	if (SvPOK (fh_or_path))
		1742	{
		1743	req->type = REQ_TRUNCATE;
		1744	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1745	}
		1746	else
		1747	{
		1748	req->type = REQ_FTRUNCATE;
		1749	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1750	}
		1751
		1752	REQ_SEND;
		1753	}
		1754
		1755	void
		1756	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1757	PPCODE:
		1758	{
		1759	dREQ;
		1760
		1761	req->mode = mode;
		1762	req->sv1 = newSVsv (fh_or_path);
		1763
		1764	if (SvPOK (fh_or_path))
		1765	{
		1766	req->type = REQ_CHMOD;
		1767	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1768	}
		1769	else
		1770	{
		1771	req->type = REQ_FCHMOD;
		1772	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1773	}
		1774
		1775	REQ_SEND;
		1776	}
		1777
		1778	void
		1779	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1780	PPCODE:
		1781	{
		1782	dREQ;
		1783
		1784	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1785	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1786	req->sv1 = newSVsv (fh_or_path);
		1787
		1788	if (SvPOK (fh_or_path))
		1789	{
		1790	req->type = REQ_CHOWN;
		1791	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1792	}
		1793	else
		1794	{
		1795	req->type = REQ_FCHOWN;
		1796	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1797	}
		1798
		1799	REQ_SEND;
		1800	}
		1801
		1802	void
1298	aio_unlink (pathname,callback=&PL_sv_undef)	1803	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299	SV * pathname
1300	SV * callback
1301	ALIAS:	1804	ALIAS:
1302	aio_unlink = REQ_UNLINK	1805	aio_unlink = REQ_UNLINK
1303	aio_rmdir = REQ_RMDIR	1806	aio_rmdir = REQ_RMDIR
1304	aio_readdir = REQ_READDIR	1807	aio_readdir = REQ_READDIR
1305	PPCODE:	1808	PPCODE:
1306	{	1809	{
1307	dREQ;	1810	dREQ;
1308		1811
1309	req->type = ix;	1812	req->type = ix;
1310	req->data = newSVsv (pathname);	1813	req->sv1 = newSVsv (pathname);
1311	req->dataptr = SvPVbyte_nolen (req->data);	1814	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1815
		1816	REQ_SEND;
		1817	}
		1818
		1819	void
		1820	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1821	PPCODE:
		1822	{
		1823	dREQ;
1312		1824
		1825	req->type = REQ_MKDIR;
		1826	req->sv1 = newSVsv (pathname);
		1827	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1828	req->mode = mode;
		1829
1313	REQ_SEND;	1830	REQ_SEND;
1314	}	1831	}
1315		1832
1316	void	1833	void
1317	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1834	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318	SV * oldpath
1319	SV * newpath
1320	SV * callback
1321	ALIAS:	1835	ALIAS:
1322	aio_link = REQ_LINK	1836	aio_link = REQ_LINK
1323	aio_symlink = REQ_SYMLINK	1837	aio_symlink = REQ_SYMLINK
1324	aio_rename = REQ_RENAME	1838	aio_rename = REQ_RENAME
1325	PPCODE:	1839	PPCODE:
1326	{	1840	{
1327	dREQ;	1841	dREQ;
1328		1842
1329	req->type = ix;	1843	req->type = ix;
1330	req->fh = newSVsv (oldpath);	1844	req->sv2 = newSVsv (oldpath);
1331	req->data2ptr = SvPVbyte_nolen (req->fh);	1845	req->ptr2 = SvPVbyte_nolen (req->sv2);
1332	req->data = newSVsv (newpath);	1846	req->sv1 = newSVsv (newpath);
1333	req->dataptr = SvPVbyte_nolen (req->data);	1847	req->ptr1 = SvPVbyte_nolen (req->sv1);
1334		1848
1335	REQ_SEND;	1849	REQ_SEND;
1336	}	1850	}
1337		1851
1338	void	1852	void
1339	aio_busy (delay,callback=&PL_sv_undef)	1853	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340	double delay
1341	SV * callback
1342	PPCODE:	1854	PPCODE:
1343	{	1855	{
1344	dREQ;	1856	dREQ;
		1857
		1858	req->type = REQ_MKNOD;
		1859	req->sv1 = newSVsv (pathname);
		1860	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1861	req->mode = (mode_t)mode;
		1862	req->offs = dev;
		1863
		1864	REQ_SEND;
		1865	}
		1866
		1867	void
		1868	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1869	PPCODE:
		1870	{
		1871	dREQ;
1345		1872
1346	req->type = REQ_BUSY;	1873	req->type = REQ_BUSY;
1347	req->fd = delay < 0. ? 0 : delay;	1874	req->nv1 = delay < 0. ? 0. : delay;
1348	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1349		1875
1350	REQ_SEND;	1876	REQ_SEND;
1351	}	1877	}
1352		1878
1353	void	1879	void
1354	aio_group (callback=&PL_sv_undef)	1880	aio_group (SV *callback=&PL_sv_undef)
1355	SV * callback
1356	PROTOTYPE: ;$	1881	PROTOTYPE: ;$
1357	PPCODE:	1882	PPCODE:
1358	{	1883	{
1359	dREQ;	1884	dREQ;
1360		1885
1361	req->type = REQ_GROUP;	1886	req->type = REQ_GROUP;
		1887
1362	req_send (req);	1888	req_send (req);
1363
1364	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1889	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1365	}	1890	}
1366		1891
1367	void	1892	void
1368	aio_nop (callback=&PL_sv_undef)	1893	aio_nop (SV *callback=&PL_sv_undef)
1369	SV * callback	1894	ALIAS:
		1895	aio_nop = REQ_NOP
		1896	aio_sync = REQ_SYNC
1370	PPCODE:	1897	PPCODE:
1371	{	1898	{
1372	dREQ;	1899	dREQ;
1373		1900
1374	req->type = REQ_NOP;	1901	req->type = ix;
1375		1902
1376	REQ_SEND;	1903	REQ_SEND;
1377	}	1904	}
1378		1905
1379	void	1906	int
1380	aioreq_pri (int pri = DEFAULT_PRI)	1907	aioreq_pri (int pri = 0)
1381	CODE:	1908	PROTOTYPE: ;$
		1909	CODE:
		1910	RETVAL = next_pri - PRI_BIAS;
		1911	if (items > 0)
		1912	{
1382	if (pri < PRI_MIN) pri = PRI_MIN;	1913	if (pri < PRI_MIN) pri = PRI_MIN;
1383	if (pri > PRI_MAX) pri = PRI_MAX;	1914	if (pri > PRI_MAX) pri = PRI_MAX;
1384	next_pri = pri + PRI_BIAS;	1915	next_pri = pri + PRI_BIAS;
		1916	}
		1917	OUTPUT:
		1918	RETVAL
1385		1919
1386	void	1920	void
1387	aioreq_nice (int nice = 0)	1921	aioreq_nice (int nice = 0)
1388	CODE:	1922	CODE:
1389	nice = next_pri - nice;	1923	nice = next_pri - nice;
1390	if (nice < PRI_MIN) nice = PRI_MIN;	1924	if (nice < PRI_MIN) nice = PRI_MIN;
1391	if (nice > PRI_MAX) nice = PRI_MAX;	1925	if (nice > PRI_MAX) nice = PRI_MAX;
1392	next_pri = nice + PRI_BIAS;	1926	next_pri = nice + PRI_BIAS;
1393		1927
1394	void	1928	void
1395	flush ()	1929	flush ()
1396	PROTOTYPE:	1930	PROTOTYPE:
1397	CODE:	1931	CODE:
…		…
1399	{	1933	{
1400	poll_wait ();	1934	poll_wait ();
1401	poll_cb ();	1935	poll_cb ();
1402	}	1936	}
1403		1937
1404	void	1938	int
1405	poll()	1939	poll()
1406	PROTOTYPE:	1940	PROTOTYPE:
1407	CODE:	1941	CODE:
1408	if (nreqs)
1409	{
1410	poll_wait ();	1942	poll_wait ();
1411	poll_cb ();	1943	RETVAL = poll_cb ();
1412	}	1944	OUTPUT:
		1945	RETVAL
1413		1946
1414	int	1947	int
1415	poll_fileno()	1948	poll_fileno()
1416	PROTOTYPE:	1949	PROTOTYPE:
1417	CODE:	1950	CODE:
…		…
1429		1962
1430	void	1963	void
1431	poll_wait()	1964	poll_wait()
1432	PROTOTYPE:	1965	PROTOTYPE:
1433	CODE:	1966	CODE:
1434	if (nreqs)
1435	poll_wait ();	1967	poll_wait ();
		1968
		1969	void
		1970	setsig (int signum = SIGIO)
		1971	PROTOTYPE: ;$
		1972	CODE:
		1973	{
		1974	if (block_sig_level)
		1975	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1976
		1977	X_LOCK (reslock);
		1978	main_tid = pthread_self ();
		1979	main_sig = signum;
		1980	X_UNLOCK (reslock);
		1981
		1982	if (main_sig && npending)
		1983	pthread_kill (main_tid, main_sig);
		1984	}
		1985
		1986	void
		1987	aio_block (SV *cb)
		1988	PROTOTYPE: &
		1989	PPCODE:
		1990	{
		1991	int count;
		1992
		1993	block_sig ();
		1994	PUSHMARK (SP);
		1995	PUTBACK;
		1996	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1997	unblock_sig ();
		1998
		1999	if (SvTRUE (ERRSV))
		2000	croak (0);
		2001
		2002	XSRETURN (count);
		2003	}
1436		2004
1437	int	2005	int
1438	nreqs()	2006	nreqs()
1439	PROTOTYPE:	2007	PROTOTYPE:
1440	CODE:	2008	CODE:
1441	RETVAL = nreqs;	2009	RETVAL = nreqs;
1442	OUTPUT:	2010	OUTPUT:
1443	RETVAL	2011	RETVAL
1444		2012
		2013	int
		2014	nready()
		2015	PROTOTYPE:
		2016	CODE:
		2017	RETVAL = get_nready ();
		2018	OUTPUT:
		2019	RETVAL
		2020
		2021	int
		2022	npending()
		2023	PROTOTYPE:
		2024	CODE:
		2025	RETVAL = get_npending ();
		2026	OUTPUT:
		2027	RETVAL
		2028
		2029	int
		2030	nthreads()
		2031	PROTOTYPE:
		2032	CODE:
		2033	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		2034	RETVAL = started;
		2035	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		2036	OUTPUT:
		2037	RETVAL
		2038
1445	PROTOTYPES: DISABLE	2039	PROTOTYPES: DISABLE
1446		2040
1447	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2041	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1448		2042
1449	void	2043	void
…		…
1464	PPCODE:	2058	PPCODE:
1465	{	2059	{
1466	int i;	2060	int i;
1467	aio_req req;	2061	aio_req req;
1468		2062
		2063	if (main_sig && !block_sig_level)
		2064	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2065
1469	if (grp->fd == 2)	2066	if (grp->int1 == 2)
1470	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2067	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1471		2068
1472	for (i = 1; i < items; ++i )	2069	for (i = 1; i < items; ++i )
1473	{	2070	{
1474	if (GIMME_V != G_VOID)	2071	if (GIMME_V != G_VOID)
…		…
1476		2073
1477	req = SvAIO_REQ (ST (i));	2074	req = SvAIO_REQ (ST (i));
1478		2075
1479	if (req)	2076	if (req)
1480	{	2077	{
1481	++grp->length;	2078	++grp->size;
1482	req->grp = grp;	2079	req->grp = grp;
1483		2080
1484	req->grp_prev = 0;	2081	req->grp_prev = 0;
1485	req->grp_next = grp->grp_first;	2082	req->grp_next = grp->grp_first;
1486		2083
…		…
1500	void	2097	void
1501	result (aio_req grp, ...)	2098	result (aio_req grp, ...)
1502	CODE:	2099	CODE:
1503	{	2100	{
1504	int i;	2101	int i;
		2102	AV *av;
		2103
		2104	grp->errorno = errno;
		2105
1505	AV *av = newAV ();	2106	av = newAV ();
1506		2107
1507	for (i = 1; i < items; ++i )	2108	for (i = 1; i < items; ++i )
1508	av_push (av, newSVsv (ST (i)));	2109	av_push (av, newSVsv (ST (i)));
1509		2110
1510	SvREFCNT_dec (grp->data);	2111	SvREFCNT_dec (grp->sv1);
1511	grp->data = (SV *)av;	2112	grp->sv1 = (SV *)av;
1512	}	2113	}
		2114
		2115	void
		2116	errno (aio_req grp, int errorno = errno)
		2117	CODE:
		2118	grp->errorno = errorno;
1513		2119
1514	void	2120	void
1515	limit (aio_req grp, int limit)	2121	limit (aio_req grp, int limit)
1516	CODE:	2122	CODE:
1517	grp->fd2 = limit;	2123	grp->int2 = limit;
1518	aio_grp_feed (grp);	2124	aio_grp_feed (grp);
1519		2125
1520	void	2126	void
1521	feed (aio_req grp, SV *callback=&PL_sv_undef)	2127	feed (aio_req grp, SV *callback=&PL_sv_undef)
1522	CODE:	2128	CODE:
1523	{	2129	{
1524	SvREFCNT_dec (grp->fh2);	2130	SvREFCNT_dec (grp->sv2);
1525	grp->fh2 = newSVsv (callback);	2131	grp->sv2 = newSVsv (callback);
1526		2132
1527	if (grp->fd2 <= 0)	2133	if (grp->int2 <= 0)
1528	grp->fd2 = 2;	2134	grp->int2 = 2;
1529		2135
1530	aio_grp_feed (grp);	2136	aio_grp_feed (grp);
1531	}	2137	}
1532		2138

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