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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.83 by root, Sat Oct 28 00:17:30 2006 UTC vs.
Revision 1.114 by root, Sat Apr 26 12:00:23 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	LOCK (reqlock);	758	X_LOCK (reqlock);
616	reqq_push (&req_queue, req);	759	reqq_push (&req_queue, req);
617	pthread_cond_signal (&reqwait);	760	X_COND_SIGNAL (reqwait);
618	UNLOCK (reqlock);	761	X_UNLOCK (reqlock);
619		762
620	LOCK (wrklock);	763	X_LOCK (wrklock);
621	--started;	764	--started;
622	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);
623	}	773	}
624		774
625	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
626	{	776	{
627	if (wanted < nthreads)	777	if (wanted < nthreads)
…		…
635		785
636	while (started > wanted)	786	while (started > wanted)
637	end_thread ();	787	end_thread ();
638	}	788	}
639		789
640	static void poll_wait ()	790	static void poll_wait (void)
641	{	791	{
642	fd_set rfd;	792	fd_set rfd;
643		793
644	while (nreqs)	794	while (nreqs)
645	{	795	{
646	int size;	796	int size;
647	if (WORDREAD_UNSAFE) LOCK (reslock);	797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
648	size = res_queue.size;	798	size = res_queue.size;
649	if (WORDREAD_UNSAFE) UNLOCK (reslock);	799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
650		800
651	if (size)	801	if (size)
652	return;	802	return;
653		803
654	maybe_start_thread ();	804	maybe_start_thread ();
655		805
656	FD_ZERO(&rfd);	806	FD_ZERO (&rfd);
657	FD_SET(respipe [0], &rfd);	807	FD_SET (respipe [0], &rfd);
658		808
659	select (respipe [0] + 1, &rfd, 0, 0, 0);	809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
660	}	810	}
661	}	811	}
662		812
663	static int poll_cb (int max)	813	static int poll_cb (void)
664	{	814	{
665	dSP;	815	dSP;
666	int count = 0;	816	int count = 0;
		817	int maxreqs = max_poll_reqs;
667	int do_croak = 0;	818	int do_croak = 0;
		819	struct timeval tv_start, tv_now;
668	aio_req req;	820	aio_req req;
		821
		822	if (max_poll_time)
		823	gettimeofday (&tv_start, 0);
		824
		825	block_sig ();
669		826
670	for (;;)	827	for (;;)
671	{	828	{
672	while (max <= 0 || count < max)	829	for (;;)
673	{	830	{
674	maybe_start_thread ();	831	maybe_start_thread ();
675		832
676	LOCK (reslock);	833	X_LOCK (reslock);
677	req = reqq_shift (&res_queue);	834	req = reqq_shift (&res_queue);
678		835
679	if (req)	836	if (req)
680	{	837	{
681	--npending;	838	--npending;
682		839
683	if (!res_queue.size)	840	if (!res_queue.size)
684	{	841	{
685	/* read any signals sent by the worker threads */	842	/* read any signals sent by the worker threads */
686	char buf [32];	843	char buf [4];
687	while (read (respipe [0], buf, 32) == 32)	844	while (respipe_read (respipe [0], buf, 4) == 4)
688	;	845	;
689	}	846	}
690	}	847	}
691		848
692	UNLOCK (reslock);	849	X_UNLOCK (reslock);
693		850
694	if (!req)	851	if (!req)
695	break;	852	break;
696		853
697	--nreqs;	854	--nreqs;
698		855
699	if (req->type == REQ_GROUP && req->length)	856	if (req->type == REQ_GROUP && req->size)
700	{	857	{
701	req->fd = 1; /* mark request as delayed */	858	req->int1 = 1; /* mark request as delayed */
702	continue;	859	continue;
703	}	860	}
704	else	861	else
705	{	862	{
706	if (req->type == REQ_READ)	863	if (!req_invoke (req))
707	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
708
709	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
710	SvREADONLY_off (req->data);
711
712	if (req->statdata)
713	{	864	{
714	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	865	req_destroy (req);
715	PL_laststatval = req->result;	866	unblock_sig ();
716	PL_statcache = *(req->statdata);	867	croak (0);
717	}	868	}
718
719	req_invoke (req);
720		869
721	count++;	870	count++;
722	}	871	}
723		872
724	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	}
725	}	885	}
726		886
727	if (nreqs <= max_outstanding)	887	if (nreqs <= max_outstanding)
728	break;	888	break;
729		889
730	poll_wait ();	890	poll_wait ();
731		891
732	max = 0;	892	++maxreqs;
733	}	893	}
734		894
		895	unblock_sig ();
735	return count;	896	return count;
736	}
737
738	static void create_pipe ()
739	{
740	if (pipe (respipe))
741	croak ("unable to initialize result pipe");
742
743	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
744	croak ("cannot set result pipe to nonblocking mode");
745
746	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
747	croak ("cannot set result pipe to nonblocking mode");
748	}	897	}
749		898
750	/*****************************************************************************/	899	/*****************************************************************************/
751	/* work around various missing functions */	900	/* work around various missing functions */
752		901
…		…
757	/*	906	/*
758	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
759	* 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,
760	* but that's your problem, not mine.	909	* but that's your problem, not mine.
761	*/	910	*/
762	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
763		912
764	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)
765	{	914	{
766	ssize_t res;	915	ssize_t res;
767	off_t ooffset;	916	off_t ooffset;
768		917
769	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
770	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
771	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
772	res = read (fd, buf, count);	921	res = read (fd, buf, count);
773	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
774	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
775		924
776	return res;	925	return res;
777	}	926	}
778		927
779	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)
780	{	929	{
781	ssize_t res;	930	ssize_t res;
782	off_t ooffset;	931	off_t ooffset;
783		932
784	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
785	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
786	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
787	res = write (fd, buf, count);	936	res = write (fd, buf, count);
788	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
789	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
790		939
791	return res;	940	return res;
792	}	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
793	#endif	970	#endif
794		971
795	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
796	# define fdatasync fsync	973	# define fdatasync fsync
797	#endif	974	#endif
…		…
799	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
800	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
801		978
802	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)
803	{	980	{
		981	size_t todo = count;
804	dBUF;	982	dBUF;
805		983
806	while (count > 0)	984	while (todo > 0)
807	{	985	{
808	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
809		987
810	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
811	offset += len;	989	offset += len;
812	count -= len;	990	todo -= len;
813	}	991	}
814		992
815	errno = 0;	993	errno = 0;
		994	return count;
816	}	995	}
817		996
818	#endif	997	#endif
819		998
820	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
821	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
822		1001
823	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
824		1003
825	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)
826	{	1005	{
827	struct dirent *e;	1006	X_DIRENT *e;
828	int errorno;	1007	int errorno;
829		1008
830	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
831		1010
832	e = readdir (dirp);	1011	e = readdir (dirp);
833	errorno = errno;	1012	errorno = errno;
834		1013
835	if (e)	1014	if (e)
…		…
838	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
839	}	1018	}
840	else	1019	else
841	*res = 0;	1020	*res = 0;
842		1021
843	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
844		1023
845	errno = errorno;	1024	errno = errorno;
846	return e ? 0 : -1;	1025	return e ? 0 : -1;
847	}	1026	}
848	#endif	1027	#endif
…		…
944	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
945	{	1124	{
946	DIR *dirp;	1125	DIR *dirp;
947	union	1126	union
948	{	1127	{
949	struct dirent d;	1128	X_DIRENT d;
950	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
951	} *u;	1130	} *u;
952	struct dirent *entp;	1131	X_DIRENT *entp;
953	char *name, *names;	1132	char *name, *names;
954	int memlen = 4096;	1133	int memlen = 4096;
955	int memofs = 0;	1134	int memofs = 0;
956	int res = 0;	1135	int res = 0;
957	int errorno;
958		1136
959	LOCK (wrklock);	1137	X_LOCK (wrklock);
960	self->dirp = dirp = opendir (req->dataptr);	1138	self->dirp = dirp = opendir (req->ptr1);
961	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
		1140	req->flags |= FLAG_PTR2_FREE;
962	req->data2ptr = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
963	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
964		1143
965	if (dirp && u && names)	1144	if (dirp && u && names)
966	for (;;)	1145	for (;;)
967	{	1146	{
968	errno = 0;	1147	errno = 0;
…		…
980	res++;	1159	res++;
981		1160
982	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
983	{	1162	{
984	memlen *= 2;	1163	memlen *= 2;
985	LOCK (wrklock);	1164	X_LOCK (wrklock);
986	req->data2ptr = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
987	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
988		1167
989	if (!names)	1168	if (!names)
990	break;	1169	break;
991	}	1170	}
992		1171
…		…
999	res = -1;	1178	res = -1;
1000		1179
1001	req->result = res;	1180	req->result = res;
1002	}	1181	}
1003		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
1004	/*****************************************************************************/	1210	/*****************************************************************************/
1005		1211
1006	static void *aio_proc (void *thr_arg)	1212	X_THREAD_PROC (aio_proc)
1007	{	1213	{
1008	aio_req req;	1214	aio_req req;
		1215	struct timespec ts;
1009	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);
1010		1220
1011	for (;;)	1221	for (;;)
1012	{	1222	{
		1223	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1224
1013	LOCK (reqlock);	1225	X_LOCK (reqlock);
1014		1226
1015	for (;;)	1227	for (;;)
1016	{	1228	{
1017	self->req = req = reqq_shift (&req_queue);	1229	self->req = req = reqq_shift (&req_queue);
1018		1230
1019	if (req)	1231	if (req)
1020	break;	1232	break;
1021		1233
1022	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;
1023	}	1255	}
1024		1256
1025	--nready;	1257	--nready;
1026		1258
1027	UNLOCK (reqlock);	1259	X_UNLOCK (reqlock);
1028		1260
1029	errno = 0; /* strictly unnecessary */	1261	errno = 0; /* strictly unnecessary */
1030		1262
1031	if (!(req->flags & FLAG_CANCELLED))	1263	if (!(req->flags & FLAG_CANCELLED))
1032	switch (req->type)	1264	switch (req->type)
1033	{	1265	{
1034	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1266	case REQ_READ: req->result = req->offs >= 0
1035	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;
1036		1272
1037	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;
1038	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;
1039		1275
1040	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;
1041	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;
1042	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;
1043		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
1044	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;
1045	case REQ_CLOSE: req->result = close (req->fd); break;	1288	case REQ_CLOSE: req->result = aio_close (req->int1); break;
1046	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1289	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1047	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;
1048	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1292	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1049	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1293	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1050	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1294	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1051	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;
1052		1297
1053	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1298	case REQ_SYNC: req->result = 0; sync (); break;
1054	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
1055	case REQ_READDIR: scandir_ (req, self); break;	1302	case REQ_READDIR: scandir_ (req, self); break;
1056		1303
1057	case REQ_BUSY:	1304	case REQ_BUSY:
		1305	#ifdef _WIN32
		1306	Sleep (req->nv1 * 1000.);
		1307	#else
1058	{	1308	{
1059	struct timeval tv;	1309	struct timeval tv;
1060		1310
1061	tv.tv_sec = req->fd;	1311	tv.tv_sec = req->nv1;
1062	tv.tv_usec = req->fd2;	1312	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1063		1313
1064	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);
1065	}	1341	}
1066		1342
1067	case REQ_GROUP:	1343	case REQ_GROUP:
1068	case REQ_NOP:	1344	case REQ_NOP:
1069	break;	1345	break;
1070		1346
1071	case REQ_QUIT:	1347	case REQ_QUIT:
1072	LOCK (wrklock);	1348	goto quit;
1073	worker_free (self);
1074	--started;
1075	UNLOCK (wrklock);
1076	return 0;
1077		1349
1078	default:	1350	default:
1079	req->result = ENOSYS;	1351	req->result = -1;
1080	break;	1352	break;
1081	}	1353	}
1082		1354
1083	req->errorno = errno;	1355	req->errorno = errno;
1084		1356
1085	LOCK (reslock);	1357	X_LOCK (reslock);
1086		1358
1087	++npending;	1359	++npending;
1088		1360
1089	if (!reqq_push (&res_queue, req))	1361	if (!reqq_push (&res_queue, req))
		1362	{
1090	/* write a dummy byte to the pipe so fh becomes ready */	1363	/* write a dummy byte to the pipe so fh becomes ready */
1091	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	}
1092		1370
1093	self->req = 0;	1371	self->req = 0;
1094	worker_clear (self);	1372	worker_clear (self);
1095		1373
1096	UNLOCK (reslock);	1374	X_UNLOCK (reslock);
1097	}	1375	}
		1376
		1377	quit:
		1378	X_LOCK (wrklock);
		1379	worker_free (self);
		1380	X_UNLOCK (wrklock);
		1381
		1382	return 0;
1098	}	1383	}
1099		1384
1100	/*****************************************************************************/	1385	/*****************************************************************************/
1101		1386
1102	static void atfork_prepare (void)	1387	static void atfork_prepare (void)
1103	{	1388	{
1104	LOCK (wrklock);	1389	X_LOCK (wrklock);
1105	LOCK (reqlock);	1390	X_LOCK (reqlock);
1106	LOCK (reslock);	1391	X_LOCK (reslock);
1107	#if !HAVE_PREADWRITE	1392	#if !HAVE_PREADWRITE
1108	LOCK (preadwritelock);	1393	X_LOCK (preadwritelock);
1109	#endif	1394	#endif
1110	#if !HAVE_READDIR_R	1395	#if !HAVE_READDIR_R
1111	LOCK (readdirlock);	1396	X_LOCK (readdirlock);
1112	#endif	1397	#endif
1113	}	1398	}
1114		1399
1115	static void atfork_parent (void)	1400	static void atfork_parent (void)
1116	{	1401	{
1117	#if !HAVE_READDIR_R	1402	#if !HAVE_READDIR_R
1118	UNLOCK (readdirlock);	1403	X_UNLOCK (readdirlock);
1119	#endif	1404	#endif
1120	#if !HAVE_PREADWRITE	1405	#if !HAVE_PREADWRITE
1121	UNLOCK (preadwritelock);	1406	X_UNLOCK (preadwritelock);
1122	#endif	1407	#endif
1123	UNLOCK (reslock);	1408	X_UNLOCK (reslock);
1124	UNLOCK (reqlock);	1409	X_UNLOCK (reqlock);
1125	UNLOCK (wrklock);	1410	X_UNLOCK (wrklock);
1126	}	1411	}
1127		1412
1128	static void atfork_child (void)	1413	static void atfork_child (void)
1129	{	1414	{
1130	aio_req prv;	1415	aio_req prv;
1131		1416
1132	while (prv = reqq_shift (&req_queue))	1417	while (prv = reqq_shift (&req_queue))
1133	req_free (prv);	1418	req_destroy (prv);
1134		1419
1135	while (prv = reqq_shift (&res_queue))	1420	while (prv = reqq_shift (&res_queue))
1136	req_free (prv);	1421	req_destroy (prv);
1137		1422
1138	while (wrk_first.next != &wrk_first)	1423	while (wrk_first.next != &wrk_first)
1139	{	1424	{
1140	worker *wrk = wrk_first.next;	1425	worker *wrk = wrk_first.next;
1141		1426
1142	if (wrk->req)	1427	if (wrk->req)
1143	req_free (wrk->req);	1428	req_destroy (wrk->req);
1144		1429
1145	worker_clear (wrk);	1430	worker_clear (wrk);
1146	worker_free (wrk);	1431	worker_free (wrk);
1147	}	1432	}
1148		1433
1149	started = 0;	1434	started = 0;
		1435	idle = 0;
1150	nreqs = 0;	1436	nreqs = 0;
		1437	nready = 0;
		1438	npending = 0;
1151		1439
1152	close (respipe [0]);
1153	close (respipe [1]);
1154	create_pipe ();	1440	create_respipe ();
1155		1441
1156	atfork_parent ();	1442	atfork_parent ();
1157	}	1443	}
1158		1444
1159	#define dREQ \	1445	#define dREQ \
…		…
1181		1467
1182	PROTOTYPES: ENABLE	1468	PROTOTYPES: ENABLE
1183		1469
1184	BOOT:	1470	BOOT:
1185	{	1471	{
1186	HV *stash = gv_stashpv ("IO::AIO", 1);	1472	stash = gv_stashpv ("IO::AIO", 1);
1187		1473
1188	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1189	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1190	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1191	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1192	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);
		1486
		1487	X_COND_CHECK (reqwait);
		1488	#else
1193	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1490	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1491	#endif
1194		1492
1195	create_pipe ();	1493	create_respipe ();
		1494
1196	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1495	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1197
1198	start_thread ();
1199	}	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;
1200		1509
1201	void	1510	void
1202	min_parallel (int nthreads)	1511	min_parallel (int nthreads)
1203	PROTOTYPE: $	1512	PROTOTYPE: $
1204		1513
1205	void	1514	void
1206	max_parallel (int nthreads)	1515	max_parallel (int nthreads)
1207	PROTOTYPE: $	1516	PROTOTYPE: $
		1517
		1518	void
		1519	max_idle (int nthreads)
		1520	PROTOTYPE: $
		1521	CODE:
		1522	set_max_idle (nthreads);
1208		1523
1209	int	1524	int
1210	max_outstanding (int maxreqs)	1525	max_outstanding (int maxreqs)
1211	PROTOTYPE: $	1526	PROTOTYPE: $
1212	CODE:	1527	CODE:
…		…
1214	max_outstanding = maxreqs;	1529	max_outstanding = maxreqs;
1215	OUTPUT:	1530	OUTPUT:
1216	RETVAL	1531	RETVAL
1217		1532
1218	void	1533	void
1219	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1534	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1220	SV * pathname
1221	int flags
1222	int mode
1223	SV * callback
1224	PROTOTYPE: $$$;$	1535	PROTOTYPE: $$$;$
1225	PPCODE:	1536	PPCODE:
1226	{	1537	{
1227	dREQ;	1538	dREQ;
1228		1539
1229	req->type = REQ_OPEN;	1540	req->type = REQ_OPEN;
1230	req->data = newSVsv (pathname);	1541	req->sv1 = newSVsv (pathname);
1231	req->dataptr = SvPVbyte_nolen (req->data);	1542	req->ptr1 = SvPVbyte_nolen (req->sv1);
1232	req->fd = flags;	1543	req->int1 = flags;
1233	req->mode = mode;	1544	req->mode = mode;
1234		1545
1235	REQ_SEND;	1546	REQ_SEND;
1236	}	1547	}
1237		1548
1238	void	1549	void
1239	aio_close (fh,callback=&PL_sv_undef)	1550	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1240	SV * fh
1241	SV * callback
1242	PROTOTYPE: $;$	1551	PROTOTYPE: $;$
1243	ALIAS:	1552	ALIAS:
1244	aio_close = REQ_CLOSE
1245	aio_fsync = REQ_FSYNC	1553	aio_fsync = REQ_FSYNC
1246	aio_fdatasync = REQ_FDATASYNC	1554	aio_fdatasync = REQ_FDATASYNC
1247	PPCODE:	1555	PPCODE:
1248	{	1556	{
1249	dREQ;	1557	dREQ;
1250		1558
1251	req->type = ix;	1559	req->type = ix;
1252	req->fh = newSVsv (fh);	1560	req->sv1 = newSVsv (fh);
1253	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1561	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1254		1562
1255	REQ_SEND (req);	1563	REQ_SEND (req);
1256	}	1564	}
1257		1565
1258	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->sv1 = newSVsv (fh);
		1575	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
		1576
		1577	REQ_SEND (req);
		1578	}
		1579
		1580	void
1259	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1581	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1260	SV * fh
1261	UV offset
1262	UV length
1263	SV * data
1264	UV dataoffset
1265	SV * callback
1266	ALIAS:	1582	ALIAS:
1267	aio_read = REQ_READ	1583	aio_read = REQ_READ
1268	aio_write = REQ_WRITE	1584	aio_write = REQ_WRITE
1269	PROTOTYPE: $$$$$;$	1585	PROTOTYPE: $$$$$;$
1270	PPCODE:	1586	PPCODE:
1271	{	1587	{
1272	aio_req req;
1273	STRLEN svlen;	1588	STRLEN svlen;
1274	char *svptr = SvPVbyte (data, svlen);	1589	char *svptr = SvPVbyte (data, svlen);
		1590	UV len = SvUV (length);
1275		1591
1276	SvUPGRADE (data, SVt_PV);	1592	SvUPGRADE (data, SVt_PV);
1277	SvPOK_on (data);	1593	SvPOK_on (data);
1278		1594
1279	if (dataoffset < 0)	1595	if (dataoffset < 0)
1280	dataoffset += svlen;	1596	dataoffset += svlen;
1281		1597
1282	if (dataoffset < 0 || dataoffset > svlen)	1598	if (dataoffset < 0 || dataoffset > svlen)
1283	croak ("data offset outside of string");	1599	croak ("dataoffset outside of data scalar");
1284		1600
1285	if (ix == REQ_WRITE)	1601	if (ix == REQ_WRITE)
1286	{	1602	{
1287	/* write: check length and adjust. */	1603	/* write: check length and adjust. */
1288	if (length < 0 || length + dataoffset > svlen)	1604	if (!SvOK (length) || len + dataoffset > svlen)
1289	length = svlen - dataoffset;	1605	len = svlen - dataoffset;
1290	}	1606	}
1291	else	1607	else
1292	{	1608	{
1293	/* read: grow scalar as necessary */	1609	/* read: grow scalar as necessary */
1294	svptr = SvGROW (data, length + dataoffset);	1610	svptr = SvGROW (data, len + dataoffset + 1);
1295	}	1611	}
1296		1612
1297	if (length < 0)	1613	if (len < 0)
1298	croak ("length must not be negative");	1614	croak ("length must not be negative");
1299		1615
1300	{	1616	{
1301	dREQ;	1617	dREQ;
1302		1618
1303	req->type = ix;	1619	req->type = ix;
1304	req->fh = newSVsv (fh);	1620	req->sv1 = newSVsv (fh);
1305	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1621	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1306	: IoOFP (sv_2io (fh)));	1622	: IoOFP (sv_2io (fh)));
		1623	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1307	req->offset = offset;	1624	req->size = len;
1308	req->length = length;
1309	req->data = SvREFCNT_inc (data);	1625	req->sv2 = SvREFCNT_inc (data);
1310	req->dataptr = (char *)svptr + dataoffset;	1626	req->ptr1 = (char *)svptr + dataoffset;
		1627	req->stroffset = dataoffset;
1311		1628
1312	if (!SvREADONLY (data))	1629	if (!SvREADONLY (data))
1313	{	1630	{
1314	SvREADONLY_on (data);	1631	SvREADONLY_on (data);
1315	req->data2ptr = (void *)data;	1632	req->flags |= FLAG_SV2_RO_OFF;
1316	}	1633	}
1317		1634
1318	REQ_SEND;	1635	REQ_SEND;
1319	}	1636	}
1320	}	1637	}
1321		1638
1322	void	1639	void
		1640	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1641	PROTOTYPE: $$;$
		1642	PPCODE:
		1643	{
		1644	SV *data;
		1645	dREQ;
		1646
		1647	data = newSV (NAME_MAX);
		1648	SvPOK_on (data);
		1649
		1650	req->type = REQ_READLINK;
		1651	req->sv1 = newSVsv (path);
		1652	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1653	req->sv2 = data;
		1654	req->ptr1 = SvPVbyte_nolen (data);
		1655
		1656	REQ_SEND;
		1657	}
		1658
		1659	void
1323	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1660	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1324	SV * out_fh
1325	SV * in_fh
1326	UV in_offset
1327	UV length
1328	SV * callback
1329	PROTOTYPE: $$$$;$	1661	PROTOTYPE: $$$$;$
1330	PPCODE:	1662	PPCODE:
1331	{	1663	{
1332	dREQ;	1664	dREQ;
1333		1665
1334	req->type = REQ_SENDFILE;	1666	req->type = REQ_SENDFILE;
1335	req->fh = newSVsv (out_fh);	1667	req->sv1 = newSVsv (out_fh);
1336	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1668	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1337	req->fh2 = newSVsv (in_fh);	1669	req->sv2 = newSVsv (in_fh);
1338	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1670	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1339	req->offset = in_offset;	1671	req->offs = SvVAL64 (in_offset);
1340	req->length = length;	1672	req->size = length;
1341		1673
1342	REQ_SEND;	1674	REQ_SEND;
1343	}	1675	}
1344		1676
1345	void	1677	void
1346	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1678	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1347	SV * fh
1348	UV offset
1349	IV length
1350	SV * callback
1351	PROTOTYPE: $$$;$	1679	PROTOTYPE: $$$;$
1352	PPCODE:	1680	PPCODE:
1353	{	1681	{
1354	dREQ;	1682	dREQ;
1355		1683
1356	req->type = REQ_READAHEAD;	1684	req->type = REQ_READAHEAD;
1357	req->fh = newSVsv (fh);	1685	req->sv1 = newSVsv (fh);
1358	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1686	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1359	req->offset = offset;	1687	req->offs = SvVAL64 (offset);
1360	req->length = length;	1688	req->size = length;
1361		1689
1362	REQ_SEND;	1690	REQ_SEND;
1363	}	1691	}
1364		1692
1365	void	1693	void
1366	aio_stat (fh_or_path,callback=&PL_sv_undef)	1694	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1367	SV * fh_or_path
1368	SV * callback
1369	ALIAS:	1695	ALIAS:
1370	aio_stat = REQ_STAT	1696	aio_stat = REQ_STAT
1371	aio_lstat = REQ_LSTAT	1697	aio_lstat = REQ_LSTAT
1372	PPCODE:	1698	PPCODE:
1373	{	1699	{
1374	dREQ;	1700	dREQ;
1375		1701
1376	New (0, req->statdata, 1, Stat_t);	1702	req->ptr2 = malloc (sizeof (Stat_t));
1377	if (!req->statdata)	1703	if (!req->ptr2)
1378	{	1704	{
1379	req_free (req);	1705	req_destroy (req);
1380	croak ("out of memory during aio_req->statdata allocation");	1706	croak ("out of memory during aio_stat statdata allocation");
1381	}	1707	}
		1708
		1709	req->flags |= FLAG_PTR2_FREE;
		1710	req->sv1 = newSVsv (fh_or_path);
1382		1711
1383	if (SvPOK (fh_or_path))	1712	if (SvPOK (fh_or_path))
1384	{	1713	{
1385	req->type = ix;	1714	req->type = ix;
1386	req->data = newSVsv (fh_or_path);
1387	req->dataptr = SvPVbyte_nolen (req->data);	1715	req->ptr1 = SvPVbyte_nolen (req->sv1);
1388	}	1716	}
1389	else	1717	else
1390	{	1718	{
1391	req->type = REQ_FSTAT;	1719	req->type = REQ_FSTAT;
1392	req->fh = newSVsv (fh_or_path);
1393	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1720	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1394	}	1721	}
1395		1722
1396	REQ_SEND;	1723	REQ_SEND;
1397	}	1724	}
1398		1725
1399	void	1726	void
		1727	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1728	PPCODE:
		1729	{
		1730	dREQ;
		1731
		1732	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1733	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1734	req->sv1 = newSVsv (fh_or_path);
		1735
		1736	if (SvPOK (fh_or_path))
		1737	{
		1738	req->type = REQ_UTIME;
		1739	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1740	}
		1741	else
		1742	{
		1743	req->type = REQ_FUTIME;
		1744	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1745	}
		1746
		1747	REQ_SEND;
		1748	}
		1749
		1750	void
		1751	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1752	PPCODE:
		1753	{
		1754	dREQ;
		1755
		1756	req->sv1 = newSVsv (fh_or_path);
		1757	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1758
		1759	if (SvPOK (fh_or_path))
		1760	{
		1761	req->type = REQ_TRUNCATE;
		1762	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1763	}
		1764	else
		1765	{
		1766	req->type = REQ_FTRUNCATE;
		1767	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1768	}
		1769
		1770	REQ_SEND;
		1771	}
		1772
		1773	void
		1774	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1775	PPCODE:
		1776	{
		1777	dREQ;
		1778
		1779	req->mode = mode;
		1780	req->sv1 = newSVsv (fh_or_path);
		1781
		1782	if (SvPOK (fh_or_path))
		1783	{
		1784	req->type = REQ_CHMOD;
		1785	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1786	}
		1787	else
		1788	{
		1789	req->type = REQ_FCHMOD;
		1790	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1791	}
		1792
		1793	REQ_SEND;
		1794	}
		1795
		1796	void
		1797	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1798	PPCODE:
		1799	{
		1800	dREQ;
		1801
		1802	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1803	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1804	req->sv1 = newSVsv (fh_or_path);
		1805
		1806	if (SvPOK (fh_or_path))
		1807	{
		1808	req->type = REQ_CHOWN;
		1809	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1810	}
		1811	else
		1812	{
		1813	req->type = REQ_FCHOWN;
		1814	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1815	}
		1816
		1817	REQ_SEND;
		1818	}
		1819
		1820	void
1400	aio_unlink (pathname,callback=&PL_sv_undef)	1821	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1401	SV * pathname
1402	SV * callback
1403	ALIAS:	1822	ALIAS:
1404	aio_unlink = REQ_UNLINK	1823	aio_unlink = REQ_UNLINK
1405	aio_rmdir = REQ_RMDIR	1824	aio_rmdir = REQ_RMDIR
1406	aio_readdir = REQ_READDIR	1825	aio_readdir = REQ_READDIR
1407	PPCODE:	1826	PPCODE:
1408	{	1827	{
1409	dREQ;	1828	dREQ;
1410		1829
1411	req->type = ix;	1830	req->type = ix;
1412	req->data = newSVsv (pathname);	1831	req->sv1 = newSVsv (pathname);
1413	req->dataptr = SvPVbyte_nolen (req->data);	1832	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1833
		1834	REQ_SEND;
		1835	}
		1836
		1837	void
		1838	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1839	PPCODE:
		1840	{
		1841	dREQ;
1414		1842
		1843	req->type = REQ_MKDIR;
		1844	req->sv1 = newSVsv (pathname);
		1845	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1846	req->mode = mode;
		1847
1415	REQ_SEND;	1848	REQ_SEND;
1416	}	1849	}
1417		1850
1418	void	1851	void
1419	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1852	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1420	SV * oldpath
1421	SV * newpath
1422	SV * callback
1423	ALIAS:	1853	ALIAS:
1424	aio_link = REQ_LINK	1854	aio_link = REQ_LINK
1425	aio_symlink = REQ_SYMLINK	1855	aio_symlink = REQ_SYMLINK
1426	aio_rename = REQ_RENAME	1856	aio_rename = REQ_RENAME
1427	PPCODE:	1857	PPCODE:
1428	{	1858	{
1429	dREQ;	1859	dREQ;
1430		1860
1431	req->type = ix;	1861	req->type = ix;
1432	req->fh = newSVsv (oldpath);	1862	req->sv2 = newSVsv (oldpath);
1433	req->data2ptr = SvPVbyte_nolen (req->fh);	1863	req->ptr2 = SvPVbyte_nolen (req->sv2);
1434	req->data = newSVsv (newpath);	1864	req->sv1 = newSVsv (newpath);
1435	req->dataptr = SvPVbyte_nolen (req->data);	1865	req->ptr1 = SvPVbyte_nolen (req->sv1);
1436		1866
1437	REQ_SEND;	1867	REQ_SEND;
1438	}	1868	}
1439		1869
1440	void	1870	void
1441	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1871	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1442	SV * pathname
1443	SV * callback
1444	UV mode
1445	UV dev
1446	PPCODE:	1872	PPCODE:
1447	{	1873	{
1448	dREQ;	1874	dREQ;
1449		1875
1450	req->type = REQ_MKNOD;	1876	req->type = REQ_MKNOD;
1451	req->data = newSVsv (pathname);	1877	req->sv1 = newSVsv (pathname);
1452	req->dataptr = SvPVbyte_nolen (req->data);	1878	req->ptr1 = SvPVbyte_nolen (req->sv1);
1453	req->mode = (mode_t)mode;	1879	req->mode = (mode_t)mode;
1454	req->offset = dev;	1880	req->offs = dev;
1455		1881
1456	REQ_SEND;	1882	REQ_SEND;
1457	}	1883	}
1458		1884
1459	void	1885	void
1460	aio_busy (delay,callback=&PL_sv_undef)	1886	aio_busy (double delay, SV *callback=&PL_sv_undef)
1461	double delay
1462	SV * callback
1463	PPCODE:	1887	PPCODE:
1464	{	1888	{
1465	dREQ;	1889	dREQ;
1466		1890
1467	req->type = REQ_BUSY;	1891	req->type = REQ_BUSY;
1468	req->fd = delay < 0. ? 0 : delay;	1892	req->nv1 = delay < 0. ? 0. : delay;
1469	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1470		1893
1471	REQ_SEND;	1894	REQ_SEND;
1472	}	1895	}
1473		1896
1474	void	1897	void
1475	aio_group (callback=&PL_sv_undef)	1898	aio_group (SV *callback=&PL_sv_undef)
1476	SV * callback
1477	PROTOTYPE: ;$	1899	PROTOTYPE: ;$
1478	PPCODE:	1900	PPCODE:
1479	{	1901	{
1480	dREQ;	1902	dREQ;
1481		1903
1482	req->type = REQ_GROUP;	1904	req->type = REQ_GROUP;
		1905
1483	req_send (req);	1906	req_send (req);
1484
1485	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1907	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1486	}	1908	}
1487		1909
1488	void	1910	void
1489	aio_nop (callback=&PL_sv_undef)	1911	aio_nop (SV *callback=&PL_sv_undef)
1490	SV * callback	1912	ALIAS:
		1913	aio_nop = REQ_NOP
		1914	aio_sync = REQ_SYNC
1491	PPCODE:	1915	PPCODE:
1492	{	1916	{
1493	dREQ;	1917	dREQ;
1494		1918
1495	req->type = REQ_NOP;	1919	req->type = ix;
1496		1920
1497	REQ_SEND;	1921	REQ_SEND;
1498	}	1922	}
1499		1923
1500	int	1924	int
…		…
1524	PROTOTYPE:	1948	PROTOTYPE:
1525	CODE:	1949	CODE:
1526	while (nreqs)	1950	while (nreqs)
1527	{	1951	{
1528	poll_wait ();	1952	poll_wait ();
1529	poll_cb (0);	1953	poll_cb ();
1530	}	1954	}
1531		1955
1532	void	1956	int
1533	poll()	1957	poll()
1534	PROTOTYPE:	1958	PROTOTYPE:
1535	CODE:	1959	CODE:
1536	if (nreqs)
1537	{
1538	poll_wait ();	1960	poll_wait ();
1539	poll_cb (0);	1961	RETVAL = poll_cb ();
1540	}	1962	OUTPUT:
		1963	RETVAL
1541		1964
1542	int	1965	int
1543	poll_fileno()	1966	poll_fileno()
1544	PROTOTYPE:	1967	PROTOTYPE:
1545	CODE:	1968	CODE:
…		…
1549		1972
1550	int	1973	int
1551	poll_cb(...)	1974	poll_cb(...)
1552	PROTOTYPE:	1975	PROTOTYPE:
1553	CODE:	1976	CODE:
1554	RETVAL = poll_cb (0);	1977	RETVAL = poll_cb ();
1555	OUTPUT:
1556	RETVAL
1557
1558	int
1559	poll_some(int max = 0)
1560	PROTOTYPE: $
1561	CODE:
1562	RETVAL = poll_cb (max);
1563	OUTPUT:	1978	OUTPUT:
1564	RETVAL	1979	RETVAL
1565		1980
1566	void	1981	void
1567	poll_wait()	1982	poll_wait()
1568	PROTOTYPE:	1983	PROTOTYPE:
1569	CODE:	1984	CODE:
1570	if (nreqs)
1571	poll_wait ();	1985	poll_wait ();
		1986
		1987	void
		1988	setsig (int signum = SIGIO)
		1989	PROTOTYPE: ;$
		1990	CODE:
		1991	{
		1992	if (block_sig_level)
		1993	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1994
		1995	X_LOCK (reslock);
		1996	main_tid = pthread_self ();
		1997	main_sig = signum;
		1998	X_UNLOCK (reslock);
		1999
		2000	if (main_sig && npending)
		2001	pthread_kill (main_tid, main_sig);
		2002	}
		2003
		2004	void
		2005	aio_block (SV *cb)
		2006	PROTOTYPE: &
		2007	PPCODE:
		2008	{
		2009	int count;
		2010
		2011	block_sig ();
		2012	PUSHMARK (SP);
		2013	PUTBACK;
		2014	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		2015	unblock_sig ();
		2016
		2017	if (SvTRUE (ERRSV))
		2018	croak (0);
		2019
		2020	XSRETURN (count);
		2021	}
1572		2022
1573	int	2023	int
1574	nreqs()	2024	nreqs()
1575	PROTOTYPE:	2025	PROTOTYPE:
1576	CODE:	2026	CODE:
…		…
1592	CODE:	2042	CODE:
1593	RETVAL = get_npending ();	2043	RETVAL = get_npending ();
1594	OUTPUT:	2044	OUTPUT:
1595	RETVAL	2045	RETVAL
1596		2046
		2047	int
		2048	nthreads()
		2049	PROTOTYPE:
		2050	CODE:
		2051	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		2052	RETVAL = started;
		2053	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		2054	OUTPUT:
		2055	RETVAL
		2056
1597	PROTOTYPES: DISABLE	2057	PROTOTYPES: DISABLE
1598		2058
1599	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2059	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1600		2060
1601	void	2061	void
…		…
1616	PPCODE:	2076	PPCODE:
1617	{	2077	{
1618	int i;	2078	int i;
1619	aio_req req;	2079	aio_req req;
1620		2080
		2081	if (main_sig && !block_sig_level)
		2082	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2083
1621	if (grp->fd == 2)	2084	if (grp->int1 == 2)
1622	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2085	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1623		2086
1624	for (i = 1; i < items; ++i )	2087	for (i = 1; i < items; ++i )
1625	{	2088	{
1626	if (GIMME_V != G_VOID)	2089	if (GIMME_V != G_VOID)
…		…
1628		2091
1629	req = SvAIO_REQ (ST (i));	2092	req = SvAIO_REQ (ST (i));
1630		2093
1631	if (req)	2094	if (req)
1632	{	2095	{
1633	++grp->length;	2096	++grp->size;
1634	req->grp = grp;	2097	req->grp = grp;
1635		2098
1636	req->grp_prev = 0;	2099	req->grp_prev = 0;
1637	req->grp_next = grp->grp_first;	2100	req->grp_next = grp->grp_first;
1638		2101
…		…
1661	av = newAV ();	2124	av = newAV ();
1662		2125
1663	for (i = 1; i < items; ++i )	2126	for (i = 1; i < items; ++i )
1664	av_push (av, newSVsv (ST (i)));	2127	av_push (av, newSVsv (ST (i)));
1665		2128
1666	SvREFCNT_dec (grp->data);	2129	SvREFCNT_dec (grp->sv1);
1667	grp->data = (SV *)av;	2130	grp->sv1 = (SV *)av;
1668	}	2131	}
1669		2132
1670	void	2133	void
1671	errno (aio_req grp, int errorno = errno)	2134	errno (aio_req grp, int errorno = errno)
1672	CODE:	2135	CODE:
1673	grp->errorno = errorno;	2136	grp->errorno = errorno;
1674		2137
1675	void	2138	void
1676	limit (aio_req grp, int limit)	2139	limit (aio_req grp, int limit)
1677	CODE:	2140	CODE:
1678	grp->fd2 = limit;	2141	grp->int2 = limit;
1679	aio_grp_feed (grp);	2142	aio_grp_feed (grp);
1680		2143
1681	void	2144	void
1682	feed (aio_req grp, SV *callback=&PL_sv_undef)	2145	feed (aio_req grp, SV *callback=&PL_sv_undef)
1683	CODE:	2146	CODE:
1684	{	2147	{
1685	SvREFCNT_dec (grp->fh2);	2148	SvREFCNT_dec (grp->sv2);
1686	grp->fh2 = newSVsv (callback);	2149	grp->sv2 = newSVsv (callback);
1687		2150
1688	if (grp->fd2 <= 0)	2151	if (grp->int2 <= 0)
1689	grp->fd2 = 2;	2152	grp->int2 = 2;
1690		2153
1691	aio_grp_feed (grp);	2154	aio_grp_feed (grp);
1692	}	2155	}
1693		2156

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