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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.81 by root, Fri Oct 27 20:10:06 2006 UTC vs.
Revision 1.113 by root, Wed Apr 16 16:45:18 2008 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	/* wether word reads are potentially non-atomic.
67	* this is conservatice, likely most arches this runs
68	* on have atomic word read/writes.
69	*/
70	#ifndef WORDREAD_UNSAFE
71	# if __i386 || __x86_64
72	# define WORDREAD_UNSAFE 0
73	# else
74	# define WORDREAD_UNSAFE 1
75	# endif
76	#endif
77
78	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
79	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
80		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
81	#define dBUF \	104	#define dBUF \
82	char *aio_buf; \	105	char *aio_buf; \
83	LOCK (wrklock); \	106	X_LOCK (wrklock); \
84	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
86	if (!aio_buf) \	109	if (!aio_buf) \
87	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
88		113
89	enum {	114	enum {
90	REQ_QUIT,	115	REQ_QUIT,
91	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
92	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
93	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
94	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,
95	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
96	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
97	REQ_MKNOD, REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
98	REQ_LINK, REQ_SYMLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
99	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
100	REQ_BUSY,	129	REQ_BUSY,
101	};	130	};
102		131
103	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
105		134
106	typedef struct aio_cb	135	typedef struct aio_cb
107	{	136	{
108	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
109		138
110	SV *data, *callback;	139	SV *callback;
111	SV *fh, *fh2;	140	SV *sv1, *sv2;
112	void *dataptr, *data2ptr;	141	void *ptr1, *ptr2;
113	Stat_t *statdata;
114	off_t offset;	142	off_t offs;
115	size_t length;	143	size_t size;
116	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
117		146
118	STRLEN dataoffset;	147	STRLEN stroffset;
119	int type;	148	int type;
120	int fd, fd2;	149	int int1, int2, int3;
121	int errorno;	150	int errorno;
122	mode_t mode; /* open */	151	mode_t mode; /* open */
123		152
124	unsigned char flags;	153	unsigned char flags;
125	unsigned char pri;	154	unsigned char pri;
…		…
127	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
128	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129	} aio_cb;	158	} aio_cb;
130		159
131	enum {	160	enum {
132	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) */
133	};	164	};
134		165
135	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
136	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
137		168
…		…
142	DEFAULT_PRI = 0,	173	DEFAULT_PRI = 0,
143	PRI_BIAS = -PRI_MIN,	174	PRI_BIAS = -PRI_MIN,
144	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	175	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145	};	176	};
146		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
147	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
148		225
149	static unsigned int started, wanted;	226	static unsigned int started, idle, wanted;
150
151	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153	#else
154	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155	#endif
156
157	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159		227
160	/* worker threads management */	228	/* worker threads management */
161	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
162		230
163	typedef struct worker {	231	typedef struct worker {
164	/* locked by wrklock */	232	/* locked by wrklock */
165	struct worker *prev, *next;	233	struct worker *prev, *next;
166		234
167	pthread_t tid;	235	thread_t tid;
168		236
169	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
170	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
171	void *dbuf;	239	void *dbuf;
172	DIR *dirp;	240	DIR *dirp;
…		…
196		264
197	free (wrk);	265	free (wrk);
198	}	266	}
199		267
200	static volatile unsigned int nreqs, nready, npending;	268	static volatile unsigned int nreqs, nready, npending;
		269	static volatile unsigned int max_idle = 4;
201	static volatile unsigned int max_outstanding = 0xffffffff;	270	static volatile unsigned int max_outstanding = 0xffffffff;
202	static int respipe [2];	271	static int respipe_osf [2], respipe [2] = { -1, -1 };
203		272
204	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
205	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
206	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
207		276
208	#if WORDREAD_UNSAFE	277	#if WORDACCESS_UNSAFE
209		278
210	static unsigned int get_nready ()	279	static unsigned int get_nready (void)
211	{	280	{
212	unsigned int retval;	281	unsigned int retval;
213		282
214	LOCK (reqlock);	283	X_LOCK (reqlock);
215	retval = nready;	284	retval = nready;
216	UNLOCK (reqlock);	285	X_UNLOCK (reqlock);
217		286
218	return retval;	287	return retval;
219	}	288	}
220		289
221	static unsigned int get_npending ()	290	static unsigned int get_npending (void)
222	{	291	{
223	unsigned int retval;	292	unsigned int retval;
224		293
225	LOCK (reslock);	294	X_LOCK (reslock);
226	retval = npending;	295	retval = npending;
227	UNLOCK (reslock);	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);
228		308
229	return retval;	309	return retval;
230	}	310	}
231		311
232	#else	312	#else
233		313
234	# define get_nready() nready	314	# define get_nready() nready
235	# define get_npending() npending	315	# define get_npending() npending
		316	# define get_nthreads() started
236		317
237	#endif	318	#endif
238		319
239	/*	320	/*
240	* a somewhat faster data structure might be nice, but	321	* a somewhat faster data structure might be nice, but
…		…
288	}	369	}
289		370
290	abort ();	371	abort ();
291	}	372	}
292		373
293	static int poll_cb (int max);	374	static int poll_cb (void);
294	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
295	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
296	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
297		378
298	/* must be called at most once */	379	/* must be called at most once */
299	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
300	{	381	{
…		…
319	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
320	}	401	}
321		402
322	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
323	{	404	{
		405	block_sig ();
		406
324	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
325	{	408	{
326	int old_len = grp->length;	409	int old_len = grp->size;
327		410
328	if (grp->fh2 && SvOK (grp->fh2))	411	if (grp->sv2 && SvOK (grp->sv2))
329	{	412	{
330	dSP;	413	dSP;
331		414
332	ENTER;	415	ENTER;
333	SAVETMPS;	416	SAVETMPS;
334	PUSHMARK (SP);	417	PUSHMARK (SP);
335	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
336	PUTBACK;	419	PUTBACK;
337	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338	SPAGAIN;	421	SPAGAIN;
339	FREETMPS;	422	FREETMPS;
340	LEAVE;	423	LEAVE;
341	}	424	}
342		425
343	/* stop if no progress has been made */	426	/* stop if no progress has been made */
344	if (old_len == grp->length)	427	if (old_len == grp->size)
345	{	428	{
346	SvREFCNT_dec (grp->fh2);	429	SvREFCNT_dec (grp->sv2);
347	grp->fh2 = 0;	430	grp->sv2 = 0;
348	break;	431	break;
349	}	432	}
350	}	433	}
		434
		435	unblock_sig ();
351	}	436	}
352		437
353	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
354	{	439	{
355	--grp->length;	440	--grp->size;
356		441
357	/* call feeder, if applicable */	442	/* call feeder, if applicable */
358	aio_grp_feed (grp);	443	aio_grp_feed (grp);
359		444
360	/* finish, if done */	445	/* finish, if done */
361	if (!grp->length && grp->fd)	446	if (!grp->size && grp->int1)
362	{	447	{
		448	block_sig ();
		449
363	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
364	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
365	}	459	}
366	}	460	}
367		461
368	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
369	{	463	{
370	dSP;	464	dSP;
		465
		466	if (req->flags & FLAG_SV2_RO_OFF)
		467	SvREADONLY_off (req->sv2);
371		468
372	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
373	{	470	{
374	ENTER;	471	ENTER;
375	SAVETMPS;	472	SAVETMPS;
…		…
383	SV *rv = &PL_sv_undef;	480	SV *rv = &PL_sv_undef;
384		481
385	if (req->result >= 0)	482	if (req->result >= 0)
386	{	483	{
387	int i;	484	int i;
388	char *buf = req->data2ptr;	485	char *buf = req->ptr2;
389	AV *av = newAV ();	486	AV *av = newAV ();
390		487
391	av_extend (av, req->result - 1);	488	av_extend (av, req->result - 1);
392		489
393	for (i = 0; i < req->result; ++i)	490	for (i = 0; i < req->result; ++i)
…		…
406	break;	503	break;
407		504
408	case REQ_OPEN:	505	case REQ_OPEN:
409	{	506	{
410	/* convert fd to fh */	507	/* convert fd to fh */
411	SV *fh;	508	SV *fh = &PL_sv_undef;
412		509
413	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
414	PUTBACK;	511	{
415	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
416	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);
417		519
418	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	);
419		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
420	PUSHMARK (SP);	532	PUSHs (fh);
421	XPUSHs (sv_2mortal (fh));
422	}	533	}
423	break;	534	break;
424		535
425	case REQ_GROUP:	536	case REQ_GROUP:
426	req->fd = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
427		538
428	if (req->data)	539	if (req->sv1)
429	{	540	{
430	int i;	541	int i;
431	AV *av = (AV *)req->data;	542	AV *av = (AV *)req->sv1;
432		543
433	EXTEND (SP, AvFILL (av) + 1);	544	EXTEND (SP, AvFILL (av) + 1);
434	for (i = 0; i <= AvFILL (av); ++i)	545	for (i = 0; i <= AvFILL (av); ++i)
435	PUSHs (*av_fetch (av, i, 0));	546	PUSHs (*av_fetch (av, i, 0));
436	}	547	}
…		…
438		549
439	case REQ_NOP:	550	case REQ_NOP:
440	case REQ_BUSY:	551	case REQ_BUSY:
441	break;	552	break;
442		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
443	default:	578	default:
444	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
445	break;	580	break;
446	}	581	}
447		582
448	errno = req->errorno;	583	errno = req->errorno;
449		584
450	PUTBACK;	585	PUTBACK;
451	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
452	SPAGAIN;	587	SPAGAIN;
453		588
454	FREETMPS;	589	FREETMPS;
455	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
456	}	593	}
457		594
458	if (req->grp)	595	if (req->grp)
459	{	596	{
460	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
467	grp->grp_first = req->grp_next;	604	grp->grp_first = req->grp_next;
468		605
469	aio_grp_dec (grp);	606	aio_grp_dec (grp);
470	}	607	}
471		608
472	if (SvTRUE (ERRSV))	609	return !SvTRUE (ERRSV);
473	{
474	req_free (req);
475	croak (0);
476	}
477	}	610	}
478		611
479	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
480	{	613	{
481	if (req->self)	614	if (req->self)
482	{	615	{
483	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
484	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
485	}	618	}
486		619
487	SvREFCNT_dec (req->data);
488	SvREFCNT_dec (req->fh);	620	SvREFCNT_dec (req->sv1);
489	SvREFCNT_dec (req->fh2);	621	SvREFCNT_dec (req->sv2);
490	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
491	Safefree (req->statdata);
492		623
493	if (req->type == REQ_READDIR)	624	if (req->flags & FLAG_PTR2_FREE)
494	free (req->data2ptr);	625	free (req->ptr2);
495		626
496	Safefree (req);	627	Safefree (req);
497	}	628	}
498		629
499	static void req_cancel_subs (aio_req grp)	630	static void req_cancel_subs (aio_req grp)
…		…
501	aio_req sub;	632	aio_req sub;
502		633
503	if (grp->type != REQ_GROUP)	634	if (grp->type != REQ_GROUP)
504	return;	635	return;
505		636
506	SvREFCNT_dec (grp->fh2);	637	SvREFCNT_dec (grp->sv2);
507	grp->fh2 = 0;	638	grp->sv2 = 0;
508		639
509	for (sub = grp->grp_first; sub; sub = sub->grp_next)	640	for (sub = grp->grp_first; sub; sub = sub->grp_next)
510	req_cancel (sub);	641	req_cancel (sub);
511	}	642	}
512		643
…		…
515	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
516		647
517	req_cancel_subs (req);	648	req_cancel_subs (req);
518	}	649	}
519		650
520	static void *aio_proc(void *arg);	651	#ifdef USE_SOCKETS_AS_HANDLES
		652	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		653	#else
		654	# define TO_SOCKET(x) (x)
		655	#endif
		656
		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)
		673	{
		674	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		675	croak ("unable to initialize result pipe(2)");
		676
		677	respipe_close (respipe [0]);
		678	respipe [0] = old_readfd;
		679	}
		680
		681	#ifdef _WIN32
		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)");
		690
		691	respipe_osf [0] = TO_SOCKET (respipe [0]);
		692	respipe_osf [1] = TO_SOCKET (respipe [1]);
		693	}
		694
		695	X_THREAD_PROC (aio_proc);
521		696
522	static void start_thread (void)	697	static void start_thread (void)
523	{	698	{
524	sigset_t fullsigset, oldsigset;
525	pthread_attr_t attr;
526
527	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
528		700
529	if (!wrk)	701	if (!wrk)
530	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
531		703
532	pthread_attr_init (&attr);
533	pthread_attr_setstacksize (&attr, STACKSIZE);
534	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535	#ifdef PTHREAD_SCOPE_PROCESS
536	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537	#endif
538
539	sigfillset (&fullsigset);
540
541	LOCK (wrklock);	704	X_LOCK (wrklock);
542	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543		705
544	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
545	{	707	{
546	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
547	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
548	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
549	wrk_first.next = wrk;	711	wrk_first.next = wrk;
550	++started;	712	++started;
551	}	713	}
552	else	714	else
553	free (wrk);	715	free (wrk);
554		716
555	sigprocmask (SIG_SETMASK, &oldsigset, 0);
556	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
557	}	718	}
558		719
559	static void maybe_start_thread ()	720	static void maybe_start_thread (void)
560	{	721	{
561	#if 0	722	if (get_nthreads () >= wanted)
562	static struct timeval last;
563	struct timeval diff, now;
564	#endif
565
566	if (started >= wanted)
567	return;	723	return;
568		724
569	if (nready <= nreqs - get_nready () - get_npending ())	725	/* todo: maybe use idle here, but might be less exact */
		726	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
570	return;	727	return;
571		728
572	#if 0
573	gettimeofday (&now, 0);
574
575	diff.tv_sec = now.tv_sec - last.tv_sec;
576	diff.tv_usec = now.tv_usec - last.tv_usec;
577
578	if (diff.tv_usec < 0)
579	{
580	--diff.tv_sec;
581	diff.tv_usec += 1000000;
582	}
583
584	if (!diff.tv_sec && diff.tv_usec < 10000)
585	return;
586
587	last = now;
588	#endif
589
590	start_thread ();	729	start_thread ();
591	}	730	}
592		731
593	static void req_send (aio_req req)	732	static void req_send (aio_req req)
594	{	733	{
		734	block_sig ();
		735
595	++nreqs;	736	++nreqs;
596		737
597	LOCK (reqlock);	738	X_LOCK (reqlock);
598	++nready;	739	++nready;
599	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
600	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
601	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
		743
		744	unblock_sig ();
602		745
603	maybe_start_thread ();	746	maybe_start_thread ();
604	}	747	}
605		748
606	static void end_thread (void)	749	static void end_thread (void)
…		…
610	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
611		754
612	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
613	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
614		757
615	req_send (req);	758	X_LOCK (reqlock);
		759	reqq_push (&req_queue, req);
		760	X_COND_SIGNAL (reqwait);
		761	X_UNLOCK (reqlock);
616		762
617	LOCK (wrklock);	763	X_LOCK (wrklock);
618	--started;	764	--started;
619	UNLOCK (wrklock);	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);
620	}	773	}
621		774
622	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
623	{	776	{
624	if (wanted < nthreads)	777	if (wanted < nthreads)
…		…
632		785
633	while (started > wanted)	786	while (started > wanted)
634	end_thread ();	787	end_thread ();
635	}	788	}
636		789
637	static void poll_wait ()	790	static void poll_wait (void)
638	{	791	{
639	fd_set rfd;	792	fd_set rfd;
640		793
641	while (nreqs)	794	while (nreqs)
642	{	795	{
643	int size;	796	int size;
644	if (WORDREAD_UNSAFE) LOCK (reslock);	797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
645	size = res_queue.size;	798	size = res_queue.size;
646	if (WORDREAD_UNSAFE) UNLOCK (reslock);	799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
647		800
648	if (size)	801	if (size)
649	return;	802	return;
650		803
651	maybe_start_thread ();	804	maybe_start_thread ();
652		805
653	FD_ZERO(&rfd);	806	FD_ZERO (&rfd);
654	FD_SET(respipe [0], &rfd);	807	FD_SET (respipe [0], &rfd);
655		808
656	select (respipe [0] + 1, &rfd, 0, 0, 0);	809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
657	}	810	}
658	}	811	}
659		812
660	static int poll_cb (int max)	813	static int poll_cb (void)
661	{	814	{
662	dSP;	815	dSP;
663	int count = 0;	816	int count = 0;
		817	int maxreqs = max_poll_reqs;
664	int do_croak = 0;	818	int do_croak = 0;
		819	struct timeval tv_start, tv_now;
665	aio_req req;	820	aio_req req;
		821
		822	if (max_poll_time)
		823	gettimeofday (&tv_start, 0);
		824
		825	block_sig ();
666		826
667	for (;;)	827	for (;;)
668	{	828	{
669	while (max <= 0 || count < max)	829	for (;;)
670	{	830	{
671	maybe_start_thread ();	831	maybe_start_thread ();
672		832
673	LOCK (reslock);	833	X_LOCK (reslock);
674	req = reqq_shift (&res_queue);	834	req = reqq_shift (&res_queue);
675		835
676	if (req)	836	if (req)
677	{	837	{
678	--npending;	838	--npending;
679		839
680	if (!res_queue.size)	840	if (!res_queue.size)
681	{	841	{
682	/* read any signals sent by the worker threads */	842	/* read any signals sent by the worker threads */
683	char buf [32];	843	char buf [4];
684	while (read (respipe [0], buf, 32) == 32)	844	while (respipe_read (respipe [0], buf, 4) == 4)
685	;	845	;
686	}	846	}
687	}	847	}
688		848
689	UNLOCK (reslock);	849	X_UNLOCK (reslock);
690		850
691	if (!req)	851	if (!req)
692	break;	852	break;
693		853
694	--nreqs;	854	--nreqs;
695		855
696	if (req->type == REQ_GROUP && req->length)	856	if (req->type == REQ_GROUP && req->size)
697	{	857	{
698	req->fd = 1; /* mark request as delayed */	858	req->int1 = 1; /* mark request as delayed */
699	continue;	859	continue;
700	}	860	}
701	else	861	else
702	{	862	{
703	if (req->type == REQ_READ)	863	if (!req_invoke (req))
704	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707	SvREADONLY_off (req->data);
708
709	if (req->statdata)
710	{	864	{
711	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	865	req_destroy (req);
712	PL_laststatval = req->result;	866	unblock_sig ();
713	PL_statcache = *(req->statdata);	867	croak (0);
714	}	868	}
715
716	req_invoke (req);
717		869
718	count++;	870	count++;
719	}	871	}
720		872
721	req_free (req);	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	}
722	}	885	}
723		886
724	if (nreqs <= max_outstanding)	887	if (nreqs <= max_outstanding)
725	break;	888	break;
726		889
727	poll_wait ();	890	poll_wait ();
728		891
729	max = 0;	892	++maxreqs;
730	}	893	}
731		894
		895	unblock_sig ();
732	return count;	896	return count;
733	}
734
735	static void create_pipe ()
736	{
737	if (pipe (respipe))
738	croak ("unable to initialize result pipe");
739
740	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741	croak ("cannot set result pipe to nonblocking mode");
742
743	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744	croak ("cannot set result pipe to nonblocking mode");
745	}	897	}
746		898
747	/*****************************************************************************/	899	/*****************************************************************************/
748	/* work around various missing functions */	900	/* work around various missing functions */
749		901
…		…
754	/*	906	/*
755	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
756	* 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,
757	* but that's your problem, not mine.	909	* but that's your problem, not mine.
758	*/	910	*/
759	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
760		912
761	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)
762	{	914	{
763	ssize_t res;	915	ssize_t res;
764	off_t ooffset;	916	off_t ooffset;
765		917
766	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
767	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
768	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
769	res = read (fd, buf, count);	921	res = read (fd, buf, count);
770	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
771	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
772		924
773	return res;	925	return res;
774	}	926	}
775		927
776	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)
777	{	929	{
778	ssize_t res;	930	ssize_t res;
779	off_t ooffset;	931	off_t ooffset;
780		932
781	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
782	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
783	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
784	res = write (fd, buf, count);	936	res = write (fd, buf, count);
785	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
786	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
787		939
788	return res;	940	return res;
789	}	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
790	#endif	970	#endif
791		971
792	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
793	# define fdatasync fsync	973	# define fdatasync fsync
794	#endif	974	#endif
…		…
796	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
797	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798		978
799	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)
800	{	980	{
		981	size_t todo = count;
801	dBUF;	982	dBUF;
802		983
803	while (count > 0)	984	while (todo > 0)
804	{	985	{
805	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
806		987
807	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
808	offset += len;	989	offset += len;
809	count -= len;	990	todo -= len;
810	}	991	}
811		992
812	errno = 0;	993	errno = 0;
		994	return count;
813	}	995	}
814		996
815	#endif	997	#endif
816		998
817	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
818	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
819		1001
820	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
821		1003
822	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)
823	{	1005	{
824	struct dirent *e;	1006	X_DIRENT *e;
825	int errorno;	1007	int errorno;
826		1008
827	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
828		1010
829	e = readdir (dirp);	1011	e = readdir (dirp);
830	errorno = errno;	1012	errorno = errno;
831		1013
832	if (e)	1014	if (e)
…		…
835	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
836	}	1018	}
837	else	1019	else
838	*res = 0;	1020	*res = 0;
839		1021
840	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
841		1023
842	errno = errorno;	1024	errno = errorno;
843	return e ? 0 : -1;	1025	return e ? 0 : -1;
844	}	1026	}
845	#endif	1027	#endif
…		…
941	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
942	{	1124	{
943	DIR *dirp;	1125	DIR *dirp;
944	union	1126	union
945	{	1127	{
946	struct dirent d;	1128	X_DIRENT d;
947	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
948	} *u;	1130	} *u;
949	struct dirent *entp;	1131	X_DIRENT *entp;
950	char *name, *names;	1132	char *name, *names;
951	int memlen = 4096;	1133	int memlen = 4096;
952	int memofs = 0;	1134	int memofs = 0;
953	int res = 0;	1135	int res = 0;
954	int errorno;
955		1136
956	LOCK (wrklock);	1137	X_LOCK (wrklock);
957	self->dirp = dirp = opendir (req->dataptr);	1138	self->dirp = dirp = opendir (req->ptr1);
958	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
		1140	req->flags |= FLAG_PTR2_FREE;
959	req->data2ptr = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
960	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
961		1143
962	if (dirp && u && names)	1144	if (dirp && u && names)
963	for (;;)	1145	for (;;)
964	{	1146	{
965	errno = 0;	1147	errno = 0;
…		…
977	res++;	1159	res++;
978		1160
979	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
980	{	1162	{
981	memlen *= 2;	1163	memlen *= 2;
982	LOCK (wrklock);	1164	X_LOCK (wrklock);
983	req->data2ptr = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
984	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
985		1167
986	if (!names)	1168	if (!names)
987	break;	1169	break;
988	}	1170	}
989		1171
…		…
996	res = -1;	1178	res = -1;
997		1179
998	req->result = res;	1180	req->result = res;
999	}	1181	}
1000		1182
		1183	static int
		1184	aio_close (int fd)
		1185	{
		1186	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		1187
		1188	X_LOCK (wrklock);
		1189
		1190	if (close_pipe < 0)
		1191	{
		1192	int pipefd [2];
		1193
		1194	if (pipe (pipefd) < 0
		1195	|| close (pipefd [1]) < 0
		1196	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
		1197	{
		1198	X_UNLOCK (wrklock);
		1199	return -1;
		1200	}
		1201
		1202	close_pipe = pipefd [0];
		1203	}
		1204
		1205	X_UNLOCK (wrklock);
		1206
		1207	return dup2 (close_pipe, fd) < 0 ? -1 : 0;
		1208	}
		1209
1001	/*****************************************************************************/	1210	/*****************************************************************************/
1002		1211
1003	static void *aio_proc (void *thr_arg)	1212	X_THREAD_PROC (aio_proc)
1004	{	1213	{
1005	aio_req req;	1214	aio_req req;
		1215	struct timespec ts;
1006	worker *self = (worker *)thr_arg;	1216	worker *self = (worker *)thr_arg;
		1217
		1218	/* try to distribute timeouts somewhat randomly */
		1219	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1007		1220
1008	for (;;)	1221	for (;;)
1009	{	1222	{
		1223	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1224
1010	LOCK (reqlock);	1225	X_LOCK (reqlock);
1011		1226
1012	for (;;)	1227	for (;;)
1013	{	1228	{
1014	self->req = req = reqq_shift (&req_queue);	1229	self->req = req = reqq_shift (&req_queue);
1015		1230
1016	if (req)	1231	if (req)
1017	break;	1232	break;
1018		1233
1019	pthread_cond_wait (&reqwait, &reqlock);	1234	++idle;
		1235
		1236	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1237	== ETIMEDOUT)
		1238	{
		1239	if (idle > max_idle)
		1240	{
		1241	--idle;
		1242	X_UNLOCK (reqlock);
		1243	X_LOCK (wrklock);
		1244	--started;
		1245	X_UNLOCK (wrklock);
		1246	goto quit;
		1247	}
		1248
		1249	/* we are allowed to idle, so do so without any timeout */
		1250	X_COND_WAIT (reqwait, reqlock);
		1251	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1252	}
		1253
		1254	--idle;
1020	}	1255	}
1021		1256
1022	--nready;	1257	--nready;
1023		1258
1024	UNLOCK (reqlock);	1259	X_UNLOCK (reqlock);
1025		1260
1026	errno = 0; /* strictly unnecessary */	1261	errno = 0; /* strictly unnecessary */
1027		1262
1028	if (!(req->flags & FLAG_CANCELLED))	1263	if (!(req->flags & FLAG_CANCELLED))
1029	switch (req->type)	1264	switch (req->type)
1030	{	1265	{
1031	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1266	case REQ_READ: req->result = req->offs >= 0
1032	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1267	? pread (req->int1, req->ptr1, req->size, req->offs)
		1268	: read (req->int1, req->ptr1, req->size); break;
		1269	case REQ_WRITE: req->result = req->offs >= 0
		1270	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1271	: write (req->int1, req->ptr1, req->size); break;
1033		1272
1034	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1273	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1035	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1274	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1036		1275
1037	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1276	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1038	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1277	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1039	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1278	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1040		1279
		1280	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1281	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1282	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1283	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1284	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1285	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1286
1041	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1287	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1042	case REQ_CLOSE: req->result = close (req->fd); break;	1288	case REQ_CLOSE: req->result = aio_close (req->int1); break;
1043	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1289	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1044	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1290	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1291	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1045	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1292	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1046	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1293	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1047	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1294	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1048	case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break;	1295	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1296	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1049		1297
1050	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1298	case REQ_SYNC: req->result = 0; sync (); break;
1051	case REQ_FSYNC: req->result = fsync (req->fd); break;	1299	case REQ_FSYNC: req->result = fsync (req->int1); break;
		1300	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
		1301
1052	case REQ_READDIR: scandir_ (req, self); break;	1302	case REQ_READDIR: scandir_ (req, self); break;
1053		1303
1054	case REQ_BUSY:	1304	case REQ_BUSY:
		1305	#ifdef _WIN32
		1306	Sleep (req->nv1 * 1000.);
		1307	#else
1055	{	1308	{
1056	struct timeval tv;	1309	struct timeval tv;
1057		1310
1058	tv.tv_sec = req->fd;	1311	tv.tv_sec = req->nv1;
1059	tv.tv_usec = req->fd2;	1312	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1060		1313
1061	req->result = select (0, 0, 0, 0, &tv);	1314	req->result = select (0, 0, 0, 0, &tv);
		1315	}
		1316	#endif
		1317	break;
		1318
		1319	case REQ_UTIME:
		1320	case REQ_FUTIME:
		1321	{
		1322	struct timeval tv[2];
		1323	struct timeval *times;
		1324
		1325	if (req->nv1 != -1. || req->nv2 != -1.)
		1326	{
		1327	tv[0].tv_sec = req->nv1;
		1328	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1329	tv[1].tv_sec = req->nv2;
		1330	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1331
		1332	times = tv;
		1333	}
		1334	else
		1335	times = 0;
		1336
		1337
		1338	req->result = req->type == REQ_FUTIME
		1339	? futimes (req->int1, times)
		1340	: utimes (req->ptr1, times);
1062	}	1341	}
1063		1342
1064	case REQ_GROUP:	1343	case REQ_GROUP:
1065	case REQ_NOP:	1344	case REQ_NOP:
1066	break;	1345	break;
1067		1346
1068	case REQ_QUIT:	1347	case REQ_QUIT:
1069	LOCK (wrklock);	1348	goto quit;
1070	worker_free (self);
1071	--started;
1072	UNLOCK (wrklock);
1073	return 0;
1074		1349
1075	default:	1350	default:
1076	req->result = ENOSYS;	1351	req->result = -1;
1077	break;	1352	break;
1078	}	1353	}
1079		1354
1080	req->errorno = errno;	1355	req->errorno = errno;
1081		1356
1082	LOCK (reslock);	1357	X_LOCK (reslock);
1083		1358
1084	++npending;	1359	++npending;
1085		1360
1086	if (!reqq_push (&res_queue, req))	1361	if (!reqq_push (&res_queue, req))
		1362	{
1087	/* write a dummy byte to the pipe so fh becomes ready */	1363	/* write a dummy byte to the pipe so fh becomes ready */
1088	write (respipe [1], &respipe, 1);	1364	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1365
		1366	/* optionally signal the main thread asynchronously */
		1367	if (main_sig)
		1368	pthread_kill (main_tid, main_sig);
		1369	}
1089		1370
1090	self->req = 0;	1371	self->req = 0;
1091	worker_clear (self);	1372	worker_clear (self);
1092		1373
1093	UNLOCK (reslock);	1374	X_UNLOCK (reslock);
1094	}	1375	}
		1376
		1377	quit:
		1378	X_LOCK (wrklock);
		1379	worker_free (self);
		1380	X_UNLOCK (wrklock);
		1381
		1382	return 0;
1095	}	1383	}
1096		1384
1097	/*****************************************************************************/	1385	/*****************************************************************************/
1098		1386
1099	static void atfork_prepare (void)	1387	static void atfork_prepare (void)
1100	{	1388	{
1101	LOCK (wrklock);	1389	X_LOCK (wrklock);
1102	LOCK (reqlock);	1390	X_LOCK (reqlock);
1103	LOCK (reslock);	1391	X_LOCK (reslock);
1104	#if !HAVE_PREADWRITE	1392	#if !HAVE_PREADWRITE
1105	LOCK (preadwritelock);	1393	X_LOCK (preadwritelock);
1106	#endif	1394	#endif
1107	#if !HAVE_READDIR_R	1395	#if !HAVE_READDIR_R
1108	LOCK (readdirlock);	1396	X_LOCK (readdirlock);
1109	#endif	1397	#endif
1110	}	1398	}
1111		1399
1112	static void atfork_parent (void)	1400	static void atfork_parent (void)
1113	{	1401	{
1114	#if !HAVE_READDIR_R	1402	#if !HAVE_READDIR_R
1115	UNLOCK (readdirlock);	1403	X_UNLOCK (readdirlock);
1116	#endif	1404	#endif
1117	#if !HAVE_PREADWRITE	1405	#if !HAVE_PREADWRITE
1118	UNLOCK (preadwritelock);	1406	X_UNLOCK (preadwritelock);
1119	#endif	1407	#endif
1120	UNLOCK (reslock);	1408	X_UNLOCK (reslock);
1121	UNLOCK (reqlock);	1409	X_UNLOCK (reqlock);
1122	UNLOCK (wrklock);	1410	X_UNLOCK (wrklock);
1123	}	1411	}
1124		1412
1125	static void atfork_child (void)	1413	static void atfork_child (void)
1126	{	1414	{
1127	aio_req prv;	1415	aio_req prv;
1128		1416
1129	while (prv = reqq_shift (&req_queue))	1417	while (prv = reqq_shift (&req_queue))
1130	req_free (prv);	1418	req_destroy (prv);
1131		1419
1132	while (prv = reqq_shift (&res_queue))	1420	while (prv = reqq_shift (&res_queue))
1133	req_free (prv);	1421	req_destroy (prv);
1134		1422
1135	while (wrk_first.next != &wrk_first)	1423	while (wrk_first.next != &wrk_first)
1136	{	1424	{
1137	worker *wrk = wrk_first.next;	1425	worker *wrk = wrk_first.next;
1138		1426
1139	if (wrk->req)	1427	if (wrk->req)
1140	req_free (wrk->req);	1428	req_destroy (wrk->req);
1141		1429
1142	worker_clear (wrk);	1430	worker_clear (wrk);
1143	worker_free (wrk);	1431	worker_free (wrk);
1144	}	1432	}
1145		1433
1146	started = 0;	1434	started = 0;
		1435	idle = 0;
1147	nreqs = 0;	1436	nreqs = 0;
		1437	nready = 0;
		1438	npending = 0;
1148		1439
1149	close (respipe [0]);
1150	close (respipe [1]);
1151	create_pipe ();	1440	create_respipe ();
1152		1441
1153	atfork_parent ();	1442	atfork_parent ();
1154	}	1443	}
1155		1444
1156	#define dREQ \	1445	#define dREQ \
…		…
1178		1467
1179	PROTOTYPES: ENABLE	1468	PROTOTYPES: ENABLE
1180		1469
1181	BOOT:	1470	BOOT:
1182	{	1471	{
1183	HV *stash = gv_stashpv ("IO::AIO", 1);	1472	stash = gv_stashpv ("IO::AIO", 1);
		1473
1184	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1185	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1186	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1187	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1188	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1479	#ifdef _WIN32
		1480	X_MUTEX_CHECK (wrklock);
		1481	X_MUTEX_CHECK (reslock);
		1482	X_MUTEX_CHECK (reqlock);
		1483	X_MUTEX_CHECK (reqwait);
		1484	X_MUTEX_CHECK (preadwritelock);
		1485	X_MUTEX_CHECK (readdirlock);
1189		1486
1190	create_pipe ();	1487	X_COND_CHECK (reqwait);
		1488	#else
		1489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1490	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1491	#endif
		1492
		1493	create_respipe ();
		1494
1191	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1495	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1192
1193	start_thread ();
1194	}	1496	}
		1497
		1498	void
		1499	max_poll_reqs (int nreqs)
		1500	PROTOTYPE: $
		1501	CODE:
		1502	max_poll_reqs = nreqs;
		1503
		1504	void
		1505	max_poll_time (double nseconds)
		1506	PROTOTYPE: $
		1507	CODE:
		1508	max_poll_time = nseconds * AIO_TICKS;
1195		1509
1196	void	1510	void
1197	min_parallel (int nthreads)	1511	min_parallel (int nthreads)
1198	PROTOTYPE: $	1512	PROTOTYPE: $
1199		1513
1200	void	1514	void
1201	max_parallel (int nthreads)	1515	max_parallel (int nthreads)
1202	PROTOTYPE: $	1516	PROTOTYPE: $
		1517
		1518	void
		1519	max_idle (int nthreads)
		1520	PROTOTYPE: $
		1521	CODE:
		1522	set_max_idle (nthreads);
1203		1523
1204	int	1524	int
1205	max_outstanding (int maxreqs)	1525	max_outstanding (int maxreqs)
1206	PROTOTYPE: $	1526	PROTOTYPE: $
1207	CODE:	1527	CODE:
…		…
1209	max_outstanding = maxreqs;	1529	max_outstanding = maxreqs;
1210	OUTPUT:	1530	OUTPUT:
1211	RETVAL	1531	RETVAL
1212		1532
1213	void	1533	void
1214	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1534	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1215	SV * pathname
1216	int flags
1217	int mode
1218	SV * callback
1219	PROTOTYPE: $$$;$	1535	PROTOTYPE: $$$;$
1220	PPCODE:	1536	PPCODE:
1221	{	1537	{
1222	dREQ;	1538	dREQ;
1223		1539
1224	req->type = REQ_OPEN;	1540	req->type = REQ_OPEN;
1225	req->data = newSVsv (pathname);	1541	req->sv1 = newSVsv (pathname);
1226	req->dataptr = SvPVbyte_nolen (req->data);	1542	req->ptr1 = SvPVbyte_nolen (req->sv1);
1227	req->fd = flags;	1543	req->int1 = flags;
1228	req->mode = mode;	1544	req->mode = mode;
1229		1545
1230	REQ_SEND;	1546	REQ_SEND;
1231	}	1547	}
1232		1548
1233	void	1549	void
1234	aio_close (fh,callback=&PL_sv_undef)	1550	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1235	SV * fh
1236	SV * callback
1237	PROTOTYPE: $;$	1551	PROTOTYPE: $;$
1238	ALIAS:	1552	ALIAS:
1239	aio_close = REQ_CLOSE
1240	aio_fsync = REQ_FSYNC	1553	aio_fsync = REQ_FSYNC
1241	aio_fdatasync = REQ_FDATASYNC	1554	aio_fdatasync = REQ_FDATASYNC
1242	PPCODE:	1555	PPCODE:
1243	{	1556	{
1244	dREQ;	1557	dREQ;
1245		1558
1246	req->type = ix;	1559	req->type = ix;
1247	req->fh = newSVsv (fh);	1560	req->sv1 = newSVsv (fh);
1248	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1561	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1249		1562
1250	REQ_SEND (req);	1563	REQ_SEND (req);
1251	}	1564	}
1252		1565
1253	void	1566	void
		1567	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1568	PROTOTYPE: $;$
		1569	PPCODE:
		1570	{
		1571	dREQ;
		1572
		1573	req->type = REQ_CLOSE;
		1574	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
		1575
		1576	REQ_SEND (req);
		1577	}
		1578
		1579	void
1254	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1580	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1255	SV * fh
1256	UV offset
1257	UV length
1258	SV * data
1259	UV dataoffset
1260	SV * callback
1261	ALIAS:	1581	ALIAS:
1262	aio_read = REQ_READ	1582	aio_read = REQ_READ
1263	aio_write = REQ_WRITE	1583	aio_write = REQ_WRITE
1264	PROTOTYPE: $$$$$;$	1584	PROTOTYPE: $$$$$;$
1265	PPCODE:	1585	PPCODE:
1266	{	1586	{
1267	aio_req req;
1268	STRLEN svlen;	1587	STRLEN svlen;
1269	char *svptr = SvPVbyte (data, svlen);	1588	char *svptr = SvPVbyte (data, svlen);
		1589	UV len = SvUV (length);
1270		1590
1271	SvUPGRADE (data, SVt_PV);	1591	SvUPGRADE (data, SVt_PV);
1272	SvPOK_on (data);	1592	SvPOK_on (data);
1273		1593
1274	if (dataoffset < 0)	1594	if (dataoffset < 0)
1275	dataoffset += svlen;	1595	dataoffset += svlen;
1276		1596
1277	if (dataoffset < 0 || dataoffset > svlen)	1597	if (dataoffset < 0 || dataoffset > svlen)
1278	croak ("data offset outside of string");	1598	croak ("dataoffset outside of data scalar");
1279		1599
1280	if (ix == REQ_WRITE)	1600	if (ix == REQ_WRITE)
1281	{	1601	{
1282	/* write: check length and adjust. */	1602	/* write: check length and adjust. */
1283	if (length < 0 || length + dataoffset > svlen)	1603	if (!SvOK (length) || len + dataoffset > svlen)
1284	length = svlen - dataoffset;	1604	len = svlen - dataoffset;
1285	}	1605	}
1286	else	1606	else
1287	{	1607	{
1288	/* read: grow scalar as necessary */	1608	/* read: grow scalar as necessary */
1289	svptr = SvGROW (data, length + dataoffset);	1609	svptr = SvGROW (data, len + dataoffset + 1);
1290	}	1610	}
1291		1611
1292	if (length < 0)	1612	if (len < 0)
1293	croak ("length must not be negative");	1613	croak ("length must not be negative");
1294		1614
1295	{	1615	{
1296	dREQ;	1616	dREQ;
1297		1617
1298	req->type = ix;	1618	req->type = ix;
1299	req->fh = newSVsv (fh);	1619	req->sv1 = newSVsv (fh);
1300	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1620	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1301	: IoOFP (sv_2io (fh)));	1621	: IoOFP (sv_2io (fh)));
		1622	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1302	req->offset = offset;	1623	req->size = len;
1303	req->length = length;
1304	req->data = SvREFCNT_inc (data);	1624	req->sv2 = SvREFCNT_inc (data);
1305	req->dataptr = (char *)svptr + dataoffset;	1625	req->ptr1 = (char *)svptr + dataoffset;
		1626	req->stroffset = dataoffset;
1306		1627
1307	if (!SvREADONLY (data))	1628	if (!SvREADONLY (data))
1308	{	1629	{
1309	SvREADONLY_on (data);	1630	SvREADONLY_on (data);
1310	req->data2ptr = (void *)data;	1631	req->flags |= FLAG_SV2_RO_OFF;
1311	}	1632	}
1312		1633
1313	REQ_SEND;	1634	REQ_SEND;
1314	}	1635	}
1315	}	1636	}
1316		1637
1317	void	1638	void
		1639	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1640	PROTOTYPE: $$;$
		1641	PPCODE:
		1642	{
		1643	SV *data;
		1644	dREQ;
		1645
		1646	data = newSV (NAME_MAX);
		1647	SvPOK_on (data);
		1648
		1649	req->type = REQ_READLINK;
		1650	req->sv1 = newSVsv (path);
		1651	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1652	req->sv2 = data;
		1653	req->ptr1 = SvPVbyte_nolen (data);
		1654
		1655	REQ_SEND;
		1656	}
		1657
		1658	void
1318	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1659	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1319	SV * out_fh
1320	SV * in_fh
1321	UV in_offset
1322	UV length
1323	SV * callback
1324	PROTOTYPE: $$$$;$	1660	PROTOTYPE: $$$$;$
1325	PPCODE:	1661	PPCODE:
1326	{	1662	{
1327	dREQ;	1663	dREQ;
1328		1664
1329	req->type = REQ_SENDFILE;	1665	req->type = REQ_SENDFILE;
1330	req->fh = newSVsv (out_fh);	1666	req->sv1 = newSVsv (out_fh);
1331	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1667	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1332	req->fh2 = newSVsv (in_fh);	1668	req->sv2 = newSVsv (in_fh);
1333	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1669	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1334	req->offset = in_offset;	1670	req->offs = SvVAL64 (in_offset);
1335	req->length = length;	1671	req->size = length;
1336		1672
1337	REQ_SEND;	1673	REQ_SEND;
1338	}	1674	}
1339		1675
1340	void	1676	void
1341	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1677	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1342	SV * fh
1343	UV offset
1344	IV length
1345	SV * callback
1346	PROTOTYPE: $$$;$	1678	PROTOTYPE: $$$;$
1347	PPCODE:	1679	PPCODE:
1348	{	1680	{
1349	dREQ;	1681	dREQ;
1350		1682
1351	req->type = REQ_READAHEAD;	1683	req->type = REQ_READAHEAD;
1352	req->fh = newSVsv (fh);	1684	req->sv1 = newSVsv (fh);
1353	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1685	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1354	req->offset = offset;	1686	req->offs = SvVAL64 (offset);
1355	req->length = length;	1687	req->size = length;
1356		1688
1357	REQ_SEND;	1689	REQ_SEND;
1358	}	1690	}
1359		1691
1360	void	1692	void
1361	aio_stat (fh_or_path,callback=&PL_sv_undef)	1693	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1362	SV * fh_or_path
1363	SV * callback
1364	ALIAS:	1694	ALIAS:
1365	aio_stat = REQ_STAT	1695	aio_stat = REQ_STAT
1366	aio_lstat = REQ_LSTAT	1696	aio_lstat = REQ_LSTAT
1367	PPCODE:	1697	PPCODE:
1368	{	1698	{
1369	dREQ;	1699	dREQ;
1370		1700
1371	New (0, req->statdata, 1, Stat_t);	1701	req->ptr2 = malloc (sizeof (Stat_t));
1372	if (!req->statdata)	1702	if (!req->ptr2)
1373	{	1703	{
1374	req_free (req);	1704	req_destroy (req);
1375	croak ("out of memory during aio_req->statdata allocation");	1705	croak ("out of memory during aio_stat statdata allocation");
1376	}	1706	}
		1707
		1708	req->flags |= FLAG_PTR2_FREE;
		1709	req->sv1 = newSVsv (fh_or_path);
1377		1710
1378	if (SvPOK (fh_or_path))	1711	if (SvPOK (fh_or_path))
1379	{	1712	{
1380	req->type = ix;	1713	req->type = ix;
1381	req->data = newSVsv (fh_or_path);
1382	req->dataptr = SvPVbyte_nolen (req->data);	1714	req->ptr1 = SvPVbyte_nolen (req->sv1);
1383	}	1715	}
1384	else	1716	else
1385	{	1717	{
1386	req->type = REQ_FSTAT;	1718	req->type = REQ_FSTAT;
1387	req->fh = newSVsv (fh_or_path);
1388	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1719	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1389	}	1720	}
1390		1721
1391	REQ_SEND;	1722	REQ_SEND;
1392	}	1723	}
1393		1724
1394	void	1725	void
		1726	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1727	PPCODE:
		1728	{
		1729	dREQ;
		1730
		1731	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1732	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1733	req->sv1 = newSVsv (fh_or_path);
		1734
		1735	if (SvPOK (fh_or_path))
		1736	{
		1737	req->type = REQ_UTIME;
		1738	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1739	}
		1740	else
		1741	{
		1742	req->type = REQ_FUTIME;
		1743	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1744	}
		1745
		1746	REQ_SEND;
		1747	}
		1748
		1749	void
		1750	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	dREQ;
		1754
		1755	req->sv1 = newSVsv (fh_or_path);
		1756	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1757
		1758	if (SvPOK (fh_or_path))
		1759	{
		1760	req->type = REQ_TRUNCATE;
		1761	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1762	}
		1763	else
		1764	{
		1765	req->type = REQ_FTRUNCATE;
		1766	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1767	}
		1768
		1769	REQ_SEND;
		1770	}
		1771
		1772	void
		1773	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1774	PPCODE:
		1775	{
		1776	dREQ;
		1777
		1778	req->mode = mode;
		1779	req->sv1 = newSVsv (fh_or_path);
		1780
		1781	if (SvPOK (fh_or_path))
		1782	{
		1783	req->type = REQ_CHMOD;
		1784	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1785	}
		1786	else
		1787	{
		1788	req->type = REQ_FCHMOD;
		1789	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1790	}
		1791
		1792	REQ_SEND;
		1793	}
		1794
		1795	void
		1796	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	dREQ;
		1800
		1801	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1802	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1803	req->sv1 = newSVsv (fh_or_path);
		1804
		1805	if (SvPOK (fh_or_path))
		1806	{
		1807	req->type = REQ_CHOWN;
		1808	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1809	}
		1810	else
		1811	{
		1812	req->type = REQ_FCHOWN;
		1813	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1814	}
		1815
		1816	REQ_SEND;
		1817	}
		1818
		1819	void
1395	aio_unlink (pathname,callback=&PL_sv_undef)	1820	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1396	SV * pathname
1397	SV * callback
1398	ALIAS:	1821	ALIAS:
1399	aio_unlink = REQ_UNLINK	1822	aio_unlink = REQ_UNLINK
1400	aio_rmdir = REQ_RMDIR	1823	aio_rmdir = REQ_RMDIR
1401	aio_readdir = REQ_READDIR	1824	aio_readdir = REQ_READDIR
1402	PPCODE:	1825	PPCODE:
1403	{	1826	{
1404	dREQ;	1827	dREQ;
1405		1828
1406	req->type = ix;	1829	req->type = ix;
1407	req->data = newSVsv (pathname);	1830	req->sv1 = newSVsv (pathname);
1408	req->dataptr = SvPVbyte_nolen (req->data);	1831	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1832
		1833	REQ_SEND;
		1834	}
		1835
		1836	void
		1837	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1838	PPCODE:
		1839	{
		1840	dREQ;
1409		1841
		1842	req->type = REQ_MKDIR;
		1843	req->sv1 = newSVsv (pathname);
		1844	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1845	req->mode = mode;
		1846
1410	REQ_SEND;	1847	REQ_SEND;
1411	}	1848	}
1412		1849
1413	void	1850	void
1414	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1851	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1415	SV * oldpath
1416	SV * newpath
1417	SV * callback
1418	ALIAS:	1852	ALIAS:
1419	aio_link = REQ_LINK	1853	aio_link = REQ_LINK
1420	aio_symlink = REQ_SYMLINK	1854	aio_symlink = REQ_SYMLINK
1421	aio_rename = REQ_RENAME	1855	aio_rename = REQ_RENAME
1422	PPCODE:	1856	PPCODE:
1423	{	1857	{
1424	dREQ;	1858	dREQ;
1425		1859
1426	req->type = ix;	1860	req->type = ix;
1427	req->fh = newSVsv (oldpath);	1861	req->sv2 = newSVsv (oldpath);
1428	req->data2ptr = SvPVbyte_nolen (req->fh);	1862	req->ptr2 = SvPVbyte_nolen (req->sv2);
1429	req->data = newSVsv (newpath);	1863	req->sv1 = newSVsv (newpath);
1430	req->dataptr = SvPVbyte_nolen (req->data);	1864	req->ptr1 = SvPVbyte_nolen (req->sv1);
1431		1865
1432	REQ_SEND;	1866	REQ_SEND;
1433	}	1867	}
1434		1868
1435	void	1869	void
1436	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1870	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1437	SV * pathname
1438	SV * callback
1439	UV mode
1440	UV dev
1441	PPCODE:	1871	PPCODE:
1442	{	1872	{
1443	dREQ;	1873	dREQ;
1444		1874
1445	req->type = REQ_MKNOD;	1875	req->type = REQ_MKNOD;
1446	req->data = newSVsv (pathname);	1876	req->sv1 = newSVsv (pathname);
1447	req->dataptr = SvPVbyte_nolen (req->data);	1877	req->ptr1 = SvPVbyte_nolen (req->sv1);
1448	req->mode = (mode_t)mode;	1878	req->mode = (mode_t)mode;
1449	req->offset = dev;	1879	req->offs = dev;
1450		1880
1451	REQ_SEND;	1881	REQ_SEND;
1452	}	1882	}
1453		1883
1454	void	1884	void
1455	aio_busy (delay,callback=&PL_sv_undef)	1885	aio_busy (double delay, SV *callback=&PL_sv_undef)
1456	double delay
1457	SV * callback
1458	PPCODE:	1886	PPCODE:
1459	{	1887	{
1460	dREQ;	1888	dREQ;
1461		1889
1462	req->type = REQ_BUSY;	1890	req->type = REQ_BUSY;
1463	req->fd = delay < 0. ? 0 : delay;	1891	req->nv1 = delay < 0. ? 0. : delay;
1464	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1465		1892
1466	REQ_SEND;	1893	REQ_SEND;
1467	}	1894	}
1468		1895
1469	void	1896	void
1470	aio_group (callback=&PL_sv_undef)	1897	aio_group (SV *callback=&PL_sv_undef)
1471	SV * callback
1472	PROTOTYPE: ;$	1898	PROTOTYPE: ;$
1473	PPCODE:	1899	PPCODE:
1474	{	1900	{
1475	dREQ;	1901	dREQ;
1476		1902
1477	req->type = REQ_GROUP;	1903	req->type = REQ_GROUP;
		1904
1478	req_send (req);	1905	req_send (req);
1479
1480	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1906	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1481	}	1907	}
1482		1908
1483	void	1909	void
1484	aio_nop (callback=&PL_sv_undef)	1910	aio_nop (SV *callback=&PL_sv_undef)
1485	SV * callback	1911	ALIAS:
		1912	aio_nop = REQ_NOP
		1913	aio_sync = REQ_SYNC
1486	PPCODE:	1914	PPCODE:
1487	{	1915	{
1488	dREQ;	1916	dREQ;
1489		1917
1490	req->type = REQ_NOP;	1918	req->type = ix;
1491		1919
1492	REQ_SEND;	1920	REQ_SEND;
1493	}	1921	}
1494		1922
1495	int	1923	int
…		…
1519	PROTOTYPE:	1947	PROTOTYPE:
1520	CODE:	1948	CODE:
1521	while (nreqs)	1949	while (nreqs)
1522	{	1950	{
1523	poll_wait ();	1951	poll_wait ();
1524	poll_cb (0);	1952	poll_cb ();
1525	}	1953	}
1526		1954
1527	void	1955	int
1528	poll()	1956	poll()
1529	PROTOTYPE:	1957	PROTOTYPE:
1530	CODE:	1958	CODE:
1531	if (nreqs)
1532	{
1533	poll_wait ();	1959	poll_wait ();
1534	poll_cb (0);	1960	RETVAL = poll_cb ();
1535	}	1961	OUTPUT:
		1962	RETVAL
1536		1963
1537	int	1964	int
1538	poll_fileno()	1965	poll_fileno()
1539	PROTOTYPE:	1966	PROTOTYPE:
1540	CODE:	1967	CODE:
…		…
1544		1971
1545	int	1972	int
1546	poll_cb(...)	1973	poll_cb(...)
1547	PROTOTYPE:	1974	PROTOTYPE:
1548	CODE:	1975	CODE:
1549	RETVAL = poll_cb (0);	1976	RETVAL = poll_cb ();
1550	OUTPUT:
1551	RETVAL
1552
1553	int
1554	poll_some(int max = 0)
1555	PROTOTYPE: $
1556	CODE:
1557	RETVAL = poll_cb (max);
1558	OUTPUT:	1977	OUTPUT:
1559	RETVAL	1978	RETVAL
1560		1979
1561	void	1980	void
1562	poll_wait()	1981	poll_wait()
1563	PROTOTYPE:	1982	PROTOTYPE:
1564	CODE:	1983	CODE:
1565	if (nreqs)
1566	poll_wait ();	1984	poll_wait ();
		1985
		1986	void
		1987	setsig (int signum = SIGIO)
		1988	PROTOTYPE: ;$
		1989	CODE:
		1990	{
		1991	if (block_sig_level)
		1992	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1993
		1994	X_LOCK (reslock);
		1995	main_tid = pthread_self ();
		1996	main_sig = signum;
		1997	X_UNLOCK (reslock);
		1998
		1999	if (main_sig && npending)
		2000	pthread_kill (main_tid, main_sig);
		2001	}
		2002
		2003	void
		2004	aio_block (SV *cb)
		2005	PROTOTYPE: &
		2006	PPCODE:
		2007	{
		2008	int count;
		2009
		2010	block_sig ();
		2011	PUSHMARK (SP);
		2012	PUTBACK;
		2013	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		2014	unblock_sig ();
		2015
		2016	if (SvTRUE (ERRSV))
		2017	croak (0);
		2018
		2019	XSRETURN (count);
		2020	}
1567		2021
1568	int	2022	int
1569	nreqs()	2023	nreqs()
1570	PROTOTYPE:	2024	PROTOTYPE:
1571	CODE:	2025	CODE:
…		…
1587	CODE:	2041	CODE:
1588	RETVAL = get_npending ();	2042	RETVAL = get_npending ();
1589	OUTPUT:	2043	OUTPUT:
1590	RETVAL	2044	RETVAL
1591		2045
		2046	int
		2047	nthreads()
		2048	PROTOTYPE:
		2049	CODE:
		2050	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		2051	RETVAL = started;
		2052	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		2053	OUTPUT:
		2054	RETVAL
		2055
1592	PROTOTYPES: DISABLE	2056	PROTOTYPES: DISABLE
1593		2057
1594	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2058	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1595		2059
1596	void	2060	void
…		…
1611	PPCODE:	2075	PPCODE:
1612	{	2076	{
1613	int i;	2077	int i;
1614	aio_req req;	2078	aio_req req;
1615		2079
		2080	if (main_sig && !block_sig_level)
		2081	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2082
1616	if (grp->fd == 2)	2083	if (grp->int1 == 2)
1617	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2084	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1618		2085
1619	for (i = 1; i < items; ++i )	2086	for (i = 1; i < items; ++i )
1620	{	2087	{
1621	if (GIMME_V != G_VOID)	2088	if (GIMME_V != G_VOID)
…		…
1623		2090
1624	req = SvAIO_REQ (ST (i));	2091	req = SvAIO_REQ (ST (i));
1625		2092
1626	if (req)	2093	if (req)
1627	{	2094	{
1628	++grp->length;	2095	++grp->size;
1629	req->grp = grp;	2096	req->grp = grp;
1630		2097
1631	req->grp_prev = 0;	2098	req->grp_prev = 0;
1632	req->grp_next = grp->grp_first;	2099	req->grp_next = grp->grp_first;
1633		2100
…		…
1656	av = newAV ();	2123	av = newAV ();
1657		2124
1658	for (i = 1; i < items; ++i )	2125	for (i = 1; i < items; ++i )
1659	av_push (av, newSVsv (ST (i)));	2126	av_push (av, newSVsv (ST (i)));
1660		2127
1661	SvREFCNT_dec (grp->data);	2128	SvREFCNT_dec (grp->sv1);
1662	grp->data = (SV *)av;	2129	grp->sv1 = (SV *)av;
1663	}	2130	}
1664		2131
1665	void	2132	void
1666	errno (aio_req grp, int errorno = errno)	2133	errno (aio_req grp, int errorno = errno)
1667	CODE:	2134	CODE:
1668	grp->errorno = errorno;	2135	grp->errorno = errorno;
1669		2136
1670	void	2137	void
1671	limit (aio_req grp, int limit)	2138	limit (aio_req grp, int limit)
1672	CODE:	2139	CODE:
1673	grp->fd2 = limit;	2140	grp->int2 = limit;
1674	aio_grp_feed (grp);	2141	aio_grp_feed (grp);
1675		2142
1676	void	2143	void
1677	feed (aio_req grp, SV *callback=&PL_sv_undef)	2144	feed (aio_req grp, SV *callback=&PL_sv_undef)
1678	CODE:	2145	CODE:
1679	{	2146	{
1680	SvREFCNT_dec (grp->fh2);	2147	SvREFCNT_dec (grp->sv2);
1681	grp->fh2 = newSVsv (callback);	2148	grp->sv2 = newSVsv (callback);
1682		2149
1683	if (grp->fd2 <= 0)	2150	if (grp->int2 <= 0)
1684	grp->fd2 = 2;	2151	grp->int2 = 2;
1685		2152
1686	aio_grp_feed (grp);	2153	aio_grp_feed (grp);
1687	}	2154	}
1688		2155

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