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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.95 by root, Sun Nov 26 22:47:58 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>
22	#include <stdlib.h>	10	#include <stdlib.h>
23	#include <errno.h>	11	#include <errno.h>
24	#include <sys/time.h>
25	#include <sys/select.h>
26	#include <sys/types.h>	12	#include <sys/types.h>
27	#include <sys/stat.h>	13	#include <sys/stat.h>
28	#include <limits.h>	14	#include <limits.h>
29	#include <unistd.h>
30	#include <fcntl.h>	15	#include <fcntl.h>
31	#include <signal.h>
32	#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
33		68
34	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
35	# if __linux	70	# if __linux
36	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
37	# elif __freebsd	72	# elif __freebsd
…		…
52	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
53	#ifndef NAME_MAX	88	#ifndef NAME_MAX
54	# define NAME_MAX 4096	89	# define NAME_MAX 4096
55	#endif	90	#endif
56		91
57	#ifndef PTHREAD_STACK_MIN
58	/* care for broken platforms, e.g. windows */
59	# define PTHREAD_STACK_MIN 16384
60	#endif
61
62	#if __ia64
63	# define STACKSIZE 65536
64	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
65	# define STACKSIZE PTHREAD_STACK_MIN
66	#else
67	# define STACKSIZE 16384
68	#endif
69
70	/* wether word reads are potentially non-atomic.
71	* this is conservatice, likely most arches this runs
72	* on have atomic word read/writes.
73	*/
74	#ifndef WORDACCESS_UNSAFE
75	# if __i386 || __x86_64
76	# define WORDACCESS_UNSAFE 0
77	# else
78	# define WORDACCESS_UNSAFE 1
79	# endif
80	#endif
81
82	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
83	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
84		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
85	#define dBUF \	104	#define dBUF \
86	char *aio_buf; \	105	char *aio_buf; \
87	LOCK (wrklock); \	106	X_LOCK (wrklock); \
88	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
89	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
90	if (!aio_buf) \	109	if (!aio_buf) \
91	return -1;	110	return -1;
92		111
93	typedef SV SV8; /* byte-sv, used for argument-checking */	112	typedef SV SV8; /* byte-sv, used for argument-checking */
94		113
95	enum {	114	enum {
96	REQ_QUIT,	115	REQ_QUIT,
97	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
98	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
99	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
100	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,
101	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
102	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
103	REQ_MKNOD, REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
104	REQ_LINK, REQ_SYMLINK, REQ_READLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
105	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
106	REQ_BUSY,	129	REQ_BUSY,
107	};	130	};
…		…
111		134
112	typedef struct aio_cb	135	typedef struct aio_cb
113	{	136	{
114	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
115		138
116	SV *callback, *fh;	139	SV *callback;
117	SV *sv1, *sv2;	140	SV *sv1, *sv2;
118	void *ptr1, *ptr2;	141	void *ptr1, *ptr2;
119	off_t offs;	142	off_t offs;
120	size_t size;	143	size_t size;
121	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
122		146
123	STRLEN stroffset;	147	STRLEN stroffset;
124	int type;	148	int type;
125	int int1, int2;	149	int int1, int2, int3;
126	int errorno;	150	int errorno;
127	mode_t mode; /* open */	151	mode_t mode; /* open */
128		152
129	unsigned char flags;	153	unsigned char flags;
130	unsigned char pri;	154	unsigned char pri;
…		…
133	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
134	} aio_cb;	158	} aio_cb;
135		159
136	enum {	160	enum {
137	FLAG_CANCELLED = 0x01, /* request was cancelled */	161	FLAG_CANCELLED = 0x01, /* request was cancelled */
138	FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */	162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
139	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */	163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
140	};	164	};
141		165
142	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
143	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
…		…
161	{	185	{
162	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS	186	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
163	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	187	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
164	}	188	}
165		189
166	static pthread_t main_tid;	190	static thread_t main_tid;
167	static int main_sig;	191	static int main_sig;
168	static int block_sig_level;	192	static int block_sig_level;
169		193
170	void block_sig ()	194	void block_sig (void)
171	{	195	{
172	sigset_t ss;	196	sigset_t ss;
173		197
174	if (block_sig_level++)	198	if (block_sig_level++)
175	return;	199	return;
…		…
180	sigemptyset (&ss);	204	sigemptyset (&ss);
181	sigaddset (&ss, main_sig);	205	sigaddset (&ss, main_sig);
182	pthread_sigmask (SIG_BLOCK, &ss, 0);	206	pthread_sigmask (SIG_BLOCK, &ss, 0);
183	}	207	}
184		208
185	void unblock_sig ()	209	void unblock_sig (void)
186	{	210	{
187	sigset_t ss;	211	sigset_t ss;
188		212
189	if (--block_sig_level)	213	if (--block_sig_level)
190	return;	214	return;
…		…
199		223
200	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
201		225
202	static unsigned int started, idle, wanted;	226	static unsigned int started, idle, wanted;
203		227
204	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
205	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
206	#else
207	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
208	#endif
209
210	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
211	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
212
213	/* worker threads management */	228	/* worker threads management */
214	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
215		230
216	typedef struct worker {	231	typedef struct worker {
217	/* locked by wrklock */	232	/* locked by wrklock */
218	struct worker *prev, *next;	233	struct worker *prev, *next;
219		234
220	pthread_t tid;	235	thread_t tid;
221		236
222	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
223	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
224	void *dbuf;	239	void *dbuf;
225	DIR *dirp;	240	DIR *dirp;
…		…
251	}	266	}
252		267
253	static volatile unsigned int nreqs, nready, npending;	268	static volatile unsigned int nreqs, nready, npending;
254	static volatile unsigned int max_idle = 4;	269	static volatile unsigned int max_idle = 4;
255	static volatile unsigned int max_outstanding = 0xffffffff;	270	static volatile unsigned int max_outstanding = 0xffffffff;
256	static int respipe [2];	271	static int respipe_osf [2], respipe [2] = { -1, -1 };
257		272
258	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
259	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
260	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
261		276
262	#if WORDACCESS_UNSAFE	277	#if WORDACCESS_UNSAFE
263		278
264	static unsigned int get_nready ()	279	static unsigned int get_nready (void)
265	{	280	{
266	unsigned int retval;	281	unsigned int retval;
267		282
268	LOCK (reqlock);	283	X_LOCK (reqlock);
269	retval = nready;	284	retval = nready;
270	UNLOCK (reqlock);	285	X_UNLOCK (reqlock);
271		286
272	return retval;	287	return retval;
273	}	288	}
274		289
275	static unsigned int get_npending ()	290	static unsigned int get_npending (void)
276	{	291	{
277	unsigned int retval;	292	unsigned int retval;
278		293
279	LOCK (reslock);	294	X_LOCK (reslock);
280	retval = npending;	295	retval = npending;
281	UNLOCK (reslock);	296	X_UNLOCK (reslock);
282		297
283	return retval;	298	return retval;
284	}	299	}
285		300
286	static unsigned int get_nthreads ()	301	static unsigned int get_nthreads (void)
287	{	302	{
288	unsigned int retval;	303	unsigned int retval;
289		304
290	LOCK (wrklock);	305	X_LOCK (wrklock);
291	retval = started;	306	retval = started;
292	UNLOCK (wrklock);	307	X_UNLOCK (wrklock);
293		308
294	return retval;	309	return retval;
295	}	310	}
296		311
297	#else	312	#else
…		…
354	}	369	}
355		370
356	abort ();	371	abort ();
357	}	372	}
358		373
359	static int poll_cb ();	374	static int poll_cb (void);
360	static int req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
361	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
362	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
363		378
364	/* must be called at most once */	379	/* must be called at most once */
365	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
366	{	381	{
…		…
432	{	447	{
433	block_sig ();	448	block_sig ();
434		449
435	if (!req_invoke (grp))	450	if (!req_invoke (grp))
436	{	451	{
437	req_free (grp);	452	req_destroy (grp);
438	unblock_sig ();	453	unblock_sig ();
439	croak (0);	454	croak (0);
440	}	455	}
441		456
442	req_free (grp);	457	req_destroy (grp);
443	unblock_sig ();	458	unblock_sig ();
444	}	459	}
445	}	460	}
446		461
447	static int req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
448	{	463	{
449	dSP;	464	dSP;
450		465
451	if (req->flags & FLAG_SV1_RO_OFF)	466	if (req->flags & FLAG_SV2_RO_OFF)
452	SvREADONLY_off (req->sv1);	467	SvREADONLY_off (req->sv2);
453		468
454	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
455	{	470	{
456	ENTER;	471	ENTER;
457	SAVETMPS;	472	SAVETMPS;
…		…
488	break;	503	break;
489		504
490	case REQ_OPEN:	505	case REQ_OPEN:
491	{	506	{
492	/* convert fd to fh */	507	/* convert fd to fh */
493	SV *fh;	508	SV *fh = &PL_sv_undef;
494		509
495	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
496	PUTBACK;	511	{
497	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
498	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);
499		519
500	fh = POPs;	520	symlen = snprintf (
501	PUSHMARK (SP);	521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	req->result
		526	);
		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
502	XPUSHs (fh);	532	PUSHs (fh);
503	}	533	}
504	break;	534	break;
505		535
506	case REQ_GROUP:	536	case REQ_GROUP:
507	req->int1 = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
…		…
522	break;	552	break;
523		553
524	case REQ_READLINK:	554	case REQ_READLINK:
525	if (req->result > 0)	555	if (req->result > 0)
526	{	556	{
527	SvCUR_set (req->sv1, req->result);	557	SvCUR_set (req->sv2, req->result);
528	*SvEND (req->sv1) = 0;	558	*SvEND (req->sv2) = 0;
529	PUSHs (req->sv1);	559	PUSHs (req->sv2);
530	}	560	}
531	break;	561	break;
532		562
533	case REQ_STAT:	563	case REQ_STAT:
534	case REQ_LSTAT:	564	case REQ_LSTAT:
…		…
538	PL_statcache = *(Stat_t *)(req->ptr2);	568	PL_statcache = *(Stat_t *)(req->ptr2);
539	PUSHs (sv_2mortal (newSViv (req->result)));	569	PUSHs (sv_2mortal (newSViv (req->result)));
540	break;	570	break;
541		571
542	case REQ_READ:	572	case REQ_READ:
543	SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));	573	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
544	*SvEND (req->sv1) = 0;	574	*SvEND (req->sv2) = 0;
545	PUSHs (sv_2mortal (newSViv (req->result)));	575	PUSHs (sv_2mortal (newSViv (req->result)));
546	break;	576	break;
547		577
548	default:	578	default:
549	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
…		…
551	}	581	}
552		582
553	errno = req->errorno;	583	errno = req->errorno;
554		584
555	PUTBACK;	585	PUTBACK;
556	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
557	SPAGAIN;	587	SPAGAIN;
558		588
559	FREETMPS;	589	FREETMPS;
560	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
561	}	593	}
562		594
563	if (req->grp)	595	if (req->grp)
564	{	596	{
565	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
575	}	607	}
576		608
577	return !SvTRUE (ERRSV);	609	return !SvTRUE (ERRSV);
578	}	610	}
579		611
580	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
581	{	613	{
582	if (req->self)	614	if (req->self)
583	{	615	{
584	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
585	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
586	}	618	}
587		619
588	SvREFCNT_dec (req->fh);
589	SvREFCNT_dec (req->sv1);	620	SvREFCNT_dec (req->sv1);
590	SvREFCNT_dec (req->sv2);	621	SvREFCNT_dec (req->sv2);
591	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
592		623
593	if (req->flags & FLAG_PTR2_FREE)	624	if (req->flags & FLAG_PTR2_FREE)
…		…
615	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
616		647
617	req_cancel_subs (req);	648	req_cancel_subs (req);
618	}	649	}
619		650
620	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);
621		696
622	static void start_thread (void)	697	static void start_thread (void)
623	{	698	{
624	sigset_t fullsigset, oldsigset;
625	pthread_attr_t attr;
626
627	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
628		700
629	if (!wrk)	701	if (!wrk)
630	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
631		703
632	pthread_attr_init (&attr);
633	pthread_attr_setstacksize (&attr, STACKSIZE);
634	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
635	#ifdef PTHREAD_SCOPE_PROCESS
636	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
637	#endif
638
639	sigfillset (&fullsigset);
640
641	LOCK (wrklock);	704	X_LOCK (wrklock);
642	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
643		705
644	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
645	{	707	{
646	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
647	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
648	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
649	wrk_first.next = wrk;	711	wrk_first.next = wrk;
650	++started;	712	++started;
651	}	713	}
652	else	714	else
653	free (wrk);	715	free (wrk);
654		716
655	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
656	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
657	}	718	}
658		719
659	static void maybe_start_thread ()	720	static void maybe_start_thread (void)
660	{	721	{
661	if (get_nthreads () >= wanted)	722	if (get_nthreads () >= wanted)
662	return;	723	return;
663		724
664	/* todo: maybe use idle here, but might be less exact */	725	/* todo: maybe use idle here, but might be less exact */
…		…
672	{	733	{
673	block_sig ();	734	block_sig ();
674		735
675	++nreqs;	736	++nreqs;
676		737
677	LOCK (reqlock);	738	X_LOCK (reqlock);
678	++nready;	739	++nready;
679	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
680	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
681	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
682		743
683	unblock_sig ();	744	unblock_sig ();
684		745
685	maybe_start_thread ();	746	maybe_start_thread ();
686	}	747	}
…		…
692	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
693		754
694	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
695	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
696		757
697	LOCK (reqlock);	758	X_LOCK (reqlock);
698	reqq_push (&req_queue, req);	759	reqq_push (&req_queue, req);
699	pthread_cond_signal (&reqwait);	760	X_COND_SIGNAL (reqwait);
700	UNLOCK (reqlock);	761	X_UNLOCK (reqlock);
701		762
702	LOCK (wrklock);	763	X_LOCK (wrklock);
703	--started;	764	--started;
704	UNLOCK (wrklock);	765	X_UNLOCK (wrklock);
705	}	766	}
706		767
707	static void set_max_idle (int nthreads)	768	static void set_max_idle (int nthreads)
708	{	769	{
709	if (WORDACCESS_UNSAFE) LOCK (reqlock);	770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
710	max_idle = nthreads <= 0 ? 1 : nthreads;	771	max_idle = nthreads <= 0 ? 1 : nthreads;
711	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
712	}	773	}
713		774
714	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
715	{	776	{
716	if (wanted < nthreads)	777	if (wanted < nthreads)
…		…
724		785
725	while (started > wanted)	786	while (started > wanted)
726	end_thread ();	787	end_thread ();
727	}	788	}
728		789
729	static void poll_wait ()	790	static void poll_wait (void)
730	{	791	{
731	fd_set rfd;	792	fd_set rfd;
732		793
733	while (nreqs)	794	while (nreqs)
734	{	795	{
735	int size;	796	int size;
736	if (WORDACCESS_UNSAFE) LOCK (reslock);	797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
737	size = res_queue.size;	798	size = res_queue.size;
738	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
739		800
740	if (size)	801	if (size)
741	return;	802	return;
742		803
743	maybe_start_thread ();	804	maybe_start_thread ();
744		805
745	FD_ZERO(&rfd);	806	FD_ZERO (&rfd);
746	FD_SET(respipe [0], &rfd);	807	FD_SET (respipe [0], &rfd);
747		808
748	select (respipe [0] + 1, &rfd, 0, 0, 0);	809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
749	}	810	}
750	}	811	}
751		812
752	static int poll_cb ()	813	static int poll_cb (void)
753	{	814	{
754	dSP;	815	dSP;
755	int count = 0;	816	int count = 0;
756	int maxreqs = max_poll_reqs;	817	int maxreqs = max_poll_reqs;
757	int do_croak = 0;	818	int do_croak = 0;
…		…
767	{	828	{
768	for (;;)	829	for (;;)
769	{	830	{
770	maybe_start_thread ();	831	maybe_start_thread ();
771		832
772	LOCK (reslock);	833	X_LOCK (reslock);
773	req = reqq_shift (&res_queue);	834	req = reqq_shift (&res_queue);
774		835
775	if (req)	836	if (req)
776	{	837	{
777	--npending;	838	--npending;
778		839
779	if (!res_queue.size)	840	if (!res_queue.size)
780	{	841	{
781	/* read any signals sent by the worker threads */	842	/* read any signals sent by the worker threads */
782	char buf [4];	843	char buf [4];
783	while (read (respipe [0], buf, 4) == 4)	844	while (respipe_read (respipe [0], buf, 4) == 4)
784	;	845	;
785	}	846	}
786	}	847	}
787		848
788	UNLOCK (reslock);	849	X_UNLOCK (reslock);
789		850
790	if (!req)	851	if (!req)
791	break;	852	break;
792		853
793	--nreqs;	854	--nreqs;
…		…
799	}	860	}
800	else	861	else
801	{	862	{
802	if (!req_invoke (req))	863	if (!req_invoke (req))
803	{	864	{
804	req_free (req);	865	req_destroy (req);
805	unblock_sig ();	866	unblock_sig ();
806	croak (0);	867	croak (0);
807	}	868	}
808		869
809	count++;	870	count++;
810	}	871	}
811		872
812	req_free (req);	873	req_destroy (req);
813		874
814	if (maxreqs && !--maxreqs)	875	if (maxreqs && !--maxreqs)
815	break;	876	break;
816		877
817	if (max_poll_time)	878	if (max_poll_time)
…		…
831	++maxreqs;	892	++maxreqs;
832	}	893	}
833		894
834	unblock_sig ();	895	unblock_sig ();
835	return count;	896	return count;
836	}
837
838	static void create_pipe ()
839	{
840	if (pipe (respipe))
841	croak ("unable to initialize result pipe");
842
843	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
844	croak ("cannot set result pipe to nonblocking mode");
845
846	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
847	croak ("cannot set result pipe to nonblocking mode");
848	}	897	}
849		898
850	/*****************************************************************************/	899	/*****************************************************************************/
851	/* work around various missing functions */	900	/* work around various missing functions */
852		901
…		…
857	/*	906	/*
858	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
859	* 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,
860	* but that's your problem, not mine.	909	* but that's your problem, not mine.
861	*/	910	*/
862	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
863		912
864	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)
865	{	914	{
866	ssize_t res;	915	ssize_t res;
867	off_t ooffset;	916	off_t ooffset;
868		917
869	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
870	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
871	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
872	res = read (fd, buf, count);	921	res = read (fd, buf, count);
873	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
874	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
875		924
876	return res;	925	return res;
877	}	926	}
878		927
879	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)
880	{	929	{
881	ssize_t res;	930	ssize_t res;
882	off_t ooffset;	931	off_t ooffset;
883		932
884	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
885	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
886	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
887	res = write (fd, buf, count);	936	res = write (fd, buf, count);
888	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
889	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
890		939
891	return res;	940	return res;
892	}	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
893	#endif	970	#endif
894		971
895	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
896	# define fdatasync fsync	973	# define fdatasync fsync
897	#endif	974	#endif
…		…
899	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
900	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
901		978
902	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)
903	{	980	{
		981	size_t todo = count;
904	dBUF;	982	dBUF;
905		983
906	while (count > 0)	984	while (todo > 0)
907	{	985	{
908	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
909		987
910	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
911	offset += len;	989	offset += len;
912	count -= len;	990	todo -= len;
913	}	991	}
914		992
915	errno = 0;	993	errno = 0;
		994	return count;
916	}	995	}
917		996
918	#endif	997	#endif
919		998
920	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
921	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
922		1001
923	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
924		1003
925	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)
926	{	1005	{
927	struct dirent *e;	1006	X_DIRENT *e;
928	int errorno;	1007	int errorno;
929		1008
930	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
931		1010
932	e = readdir (dirp);	1011	e = readdir (dirp);
933	errorno = errno;	1012	errorno = errno;
934		1013
935	if (e)	1014	if (e)
…		…
938	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
939	}	1018	}
940	else	1019	else
941	*res = 0;	1020	*res = 0;
942		1021
943	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
944		1023
945	errno = errorno;	1024	errno = errorno;
946	return e ? 0 : -1;	1025	return e ? 0 : -1;
947	}	1026	}
948	#endif	1027	#endif
…		…
1044	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
1045	{	1124	{
1046	DIR *dirp;	1125	DIR *dirp;
1047	union	1126	union
1048	{	1127	{
1049	struct dirent d;	1128	X_DIRENT d;
1050	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1051	} *u;	1130	} *u;
1052	struct dirent *entp;	1131	X_DIRENT *entp;
1053	char *name, *names;	1132	char *name, *names;
1054	int memlen = 4096;	1133	int memlen = 4096;
1055	int memofs = 0;	1134	int memofs = 0;
1056	int res = 0;	1135	int res = 0;
1057	int errorno;
1058		1136
1059	LOCK (wrklock);	1137	X_LOCK (wrklock);
1060	self->dirp = dirp = opendir (req->ptr1);	1138	self->dirp = dirp = opendir (req->ptr1);
1061	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
1062	req->flags |= FLAG_PTR2_FREE;	1140	req->flags |= FLAG_PTR2_FREE;
1063	req->ptr2 = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
1064	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
1065		1143
1066	if (dirp && u && names)	1144	if (dirp && u && names)
1067	for (;;)	1145	for (;;)
1068	{	1146	{
1069	errno = 0;	1147	errno = 0;
…		…
1081	res++;	1159	res++;
1082		1160
1083	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
1084	{	1162	{
1085	memlen *= 2;	1163	memlen *= 2;
1086	LOCK (wrklock);	1164	X_LOCK (wrklock);
1087	req->ptr2 = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
1088	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
1089		1167
1090	if (!names)	1168	if (!names)
1091	break;	1169	break;
1092	}	1170	}
1093		1171
…		…
1100	res = -1;	1178	res = -1;
1101		1179
1102	req->result = res;	1180	req->result = res;
1103	}	1181	}
1104		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
1105	/*****************************************************************************/	1210	/*****************************************************************************/
1106		1211
1107	static void *aio_proc (void *thr_arg)	1212	X_THREAD_PROC (aio_proc)
1108	{	1213	{
1109	aio_req req;	1214	aio_req req;
1110	struct timespec ts;	1215	struct timespec ts;
1111	worker *self = (worker *)thr_arg;	1216	worker *self = (worker *)thr_arg;
1112		1217
1113	/* try to distribute timeouts somewhat evenly */	1218	/* try to distribute timeouts somewhat randomly */
1114	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1219	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1115	* (1000000000UL / 1024UL);
1116		1220
1117	for (;;)	1221	for (;;)
1118	{	1222	{
1119	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1223	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1120		1224
1121	LOCK (reqlock);	1225	X_LOCK (reqlock);
1122		1226
1123	for (;;)	1227	for (;;)
1124	{	1228	{
1125	self->req = req = reqq_shift (&req_queue);	1229	self->req = req = reqq_shift (&req_queue);
1126		1230
1127	if (req)	1231	if (req)
1128	break;	1232	break;
1129		1233
1130	++idle;	1234	++idle;
1131		1235
1132	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1236	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1133	== ETIMEDOUT)	1237	== ETIMEDOUT)
1134	{	1238	{
1135	if (idle > max_idle)	1239	if (idle > max_idle)
1136	{	1240	{
1137	--idle;	1241	--idle;
1138	UNLOCK (reqlock);	1242	X_UNLOCK (reqlock);
1139	LOCK (wrklock);	1243	X_LOCK (wrklock);
1140	--started;	1244	--started;
1141	UNLOCK (wrklock);	1245	X_UNLOCK (wrklock);
1142	goto quit;	1246	goto quit;
1143	}	1247	}
1144		1248
1145	/* we are allowed to idle, so do so without any timeout */	1249	/* we are allowed to idle, so do so without any timeout */
1146	pthread_cond_wait (&reqwait, &reqlock);	1250	X_COND_WAIT (reqwait, reqlock);
1147	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1251	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1148	}	1252	}
1149		1253
1150	--idle;	1254	--idle;
1151	}	1255	}
1152		1256
1153	--nready;	1257	--nready;
1154		1258
1155	UNLOCK (reqlock);	1259	X_UNLOCK (reqlock);
1156		1260
1157	errno = 0; /* strictly unnecessary */	1261	errno = 0; /* strictly unnecessary */
1158		1262
1159	if (!(req->flags & FLAG_CANCELLED))	1263	if (!(req->flags & FLAG_CANCELLED))
1160	switch (req->type)	1264	switch (req->type)
1161	{	1265	{
1162	case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;	1266	case REQ_READ: req->result = req->offs >= 0
1163	case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); 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;
1164		1272
1165	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	1273	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1166	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;	1274	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1167		1275
1168	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;	1276	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1169	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;	1277	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1170	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;	1278	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1171		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
1172	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;	1287	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1173	case REQ_CLOSE: req->result = close (req->int1); break;	1288	case REQ_CLOSE: req->result = aio_close (req->int1); break;
1174	case REQ_UNLINK: req->result = unlink (req->ptr1); break;	1289	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1175	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;	1290	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1291	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1176	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;	1292	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1177	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;	1293	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1178	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;	1294	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1179	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;	1295	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1180	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;	1296	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1181		1297
		1298	case REQ_SYNC: req->result = 0; sync (); break;
		1299	case REQ_FSYNC: req->result = fsync (req->int1); break;
1182	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;	1300	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1183	case REQ_FSYNC: req->result = fsync (req->int1); break;	1301
1184	case REQ_READDIR: scandir_ (req, self); break;	1302	case REQ_READDIR: scandir_ (req, self); break;
1185		1303
1186	case REQ_BUSY:	1304	case REQ_BUSY:
		1305	#ifdef _WIN32
		1306	Sleep (req->nv1 * 1000.);
		1307	#else
1187	{	1308	{
1188	struct timeval tv;	1309	struct timeval tv;
1189		1310
1190	tv.tv_sec = req->int1;	1311	tv.tv_sec = req->nv1;
1191	tv.tv_usec = req->int2;	1312	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1192		1313
1193	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);
1194	}	1341	}
1195		1342
1196	case REQ_GROUP:	1343	case REQ_GROUP:
1197	case REQ_NOP:	1344	case REQ_NOP:
1198	break;	1345	break;
1199		1346
1200	case REQ_QUIT:	1347	case REQ_QUIT:
1201	goto quit;	1348	goto quit;
1202		1349
1203	default:	1350	default:
1204	req->result = ENOSYS;	1351	req->result = -1;
1205	break;	1352	break;
1206	}	1353	}
1207		1354
1208	req->errorno = errno;	1355	req->errorno = errno;
1209		1356
1210	LOCK (reslock);	1357	X_LOCK (reslock);
1211		1358
1212	++npending;	1359	++npending;
1213		1360
1214	if (!reqq_push (&res_queue, req))	1361	if (!reqq_push (&res_queue, req))
1215	{	1362	{
1216	/* write a dummy byte to the pipe so fh becomes ready */	1363	/* write a dummy byte to the pipe so fh becomes ready */
1217	write (respipe [1], &respipe, 1);	1364	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1218		1365
1219	/* optionally signal the main thread asynchronously */	1366	/* optionally signal the main thread asynchronously */
1220	if (main_sig)	1367	if (main_sig)
1221	pthread_kill (main_tid, main_sig);	1368	pthread_kill (main_tid, main_sig);
1222	}	1369	}
1223		1370
1224	self->req = 0;	1371	self->req = 0;
1225	worker_clear (self);	1372	worker_clear (self);
1226		1373
1227	UNLOCK (reslock);	1374	X_UNLOCK (reslock);
1228	}	1375	}
1229		1376
1230	quit:	1377	quit:
1231	LOCK (wrklock);	1378	X_LOCK (wrklock);
1232	worker_free (self);	1379	worker_free (self);
1233	UNLOCK (wrklock);	1380	X_UNLOCK (wrklock);
1234		1381
1235	return 0;	1382	return 0;
1236	}	1383	}
1237		1384
1238	/*****************************************************************************/	1385	/*****************************************************************************/
1239		1386
1240	static void atfork_prepare (void)	1387	static void atfork_prepare (void)
1241	{	1388	{
1242	LOCK (wrklock);	1389	X_LOCK (wrklock);
1243	LOCK (reqlock);	1390	X_LOCK (reqlock);
1244	LOCK (reslock);	1391	X_LOCK (reslock);
1245	#if !HAVE_PREADWRITE	1392	#if !HAVE_PREADWRITE
1246	LOCK (preadwritelock);	1393	X_LOCK (preadwritelock);
1247	#endif	1394	#endif
1248	#if !HAVE_READDIR_R	1395	#if !HAVE_READDIR_R
1249	LOCK (readdirlock);	1396	X_LOCK (readdirlock);
1250	#endif	1397	#endif
1251	}	1398	}
1252		1399
1253	static void atfork_parent (void)	1400	static void atfork_parent (void)
1254	{	1401	{
1255	#if !HAVE_READDIR_R	1402	#if !HAVE_READDIR_R
1256	UNLOCK (readdirlock);	1403	X_UNLOCK (readdirlock);
1257	#endif	1404	#endif
1258	#if !HAVE_PREADWRITE	1405	#if !HAVE_PREADWRITE
1259	UNLOCK (preadwritelock);	1406	X_UNLOCK (preadwritelock);
1260	#endif	1407	#endif
1261	UNLOCK (reslock);	1408	X_UNLOCK (reslock);
1262	UNLOCK (reqlock);	1409	X_UNLOCK (reqlock);
1263	UNLOCK (wrklock);	1410	X_UNLOCK (wrklock);
1264	}	1411	}
1265		1412
1266	static void atfork_child (void)	1413	static void atfork_child (void)
1267	{	1414	{
1268	aio_req prv;	1415	aio_req prv;
1269		1416
1270	while (prv = reqq_shift (&req_queue))	1417	while (prv = reqq_shift (&req_queue))
1271	req_free (prv);	1418	req_destroy (prv);
1272		1419
1273	while (prv = reqq_shift (&res_queue))	1420	while (prv = reqq_shift (&res_queue))
1274	req_free (prv);	1421	req_destroy (prv);
1275		1422
1276	while (wrk_first.next != &wrk_first)	1423	while (wrk_first.next != &wrk_first)
1277	{	1424	{
1278	worker *wrk = wrk_first.next;	1425	worker *wrk = wrk_first.next;
1279		1426
1280	if (wrk->req)	1427	if (wrk->req)
1281	req_free (wrk->req);	1428	req_destroy (wrk->req);
1282		1429
1283	worker_clear (wrk);	1430	worker_clear (wrk);
1284	worker_free (wrk);	1431	worker_free (wrk);
1285	}	1432	}
1286		1433
…		…
1288	idle = 0;	1435	idle = 0;
1289	nreqs = 0;	1436	nreqs = 0;
1290	nready = 0;	1437	nready = 0;
1291	npending = 0;	1438	npending = 0;
1292		1439
1293	close (respipe [0]);
1294	close (respipe [1]);
1295	create_pipe ();	1440	create_respipe ();
1296		1441
1297	atfork_parent ();	1442	atfork_parent ();
1298	}	1443	}
1299		1444
1300	#define dREQ \	1445	#define dREQ \
…		…
1322		1467
1323	PROTOTYPES: ENABLE	1468	PROTOTYPES: ENABLE
1324		1469
1325	BOOT:	1470	BOOT:
1326	{	1471	{
1327	HV *stash = gv_stashpv ("IO::AIO", 1);	1472	stash = gv_stashpv ("IO::AIO", 1);
1328		1473
1329	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1330	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1331	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1332	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1333	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
1334	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1335	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));	1490	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1491	#endif
1336		1492
1337	create_pipe ();	1493	create_respipe ();
		1494
1338	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1495	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1339	}	1496	}
1340		1497
1341	void	1498	void
1342	max_poll_reqs (int nreqs)	1499	max_poll_reqs (int nreqs)
1343	PROTOTYPE: $	1500	PROTOTYPE: $
…		…
1372	max_outstanding = maxreqs;	1529	max_outstanding = maxreqs;
1373	OUTPUT:	1530	OUTPUT:
1374	RETVAL	1531	RETVAL
1375		1532
1376	void	1533	void
1377	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1534	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1378	SV8 * pathname
1379	int flags
1380	int mode
1381	SV * callback
1382	PROTOTYPE: $$$;$	1535	PROTOTYPE: $$$;$
1383	PPCODE:	1536	PPCODE:
1384	{	1537	{
1385	dREQ;	1538	dREQ;
1386		1539
…		…
1392		1545
1393	REQ_SEND;	1546	REQ_SEND;
1394	}	1547	}
1395		1548
1396	void	1549	void
1397	aio_close (fh,callback=&PL_sv_undef)	1550	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1398	SV * fh
1399	SV * callback
1400	PROTOTYPE: $;$	1551	PROTOTYPE: $;$
1401	ALIAS:	1552	ALIAS:
1402	aio_close = REQ_CLOSE
1403	aio_fsync = REQ_FSYNC	1553	aio_fsync = REQ_FSYNC
1404	aio_fdatasync = REQ_FDATASYNC	1554	aio_fdatasync = REQ_FDATASYNC
1405	PPCODE:	1555	PPCODE:
1406	{	1556	{
1407	dREQ;	1557	dREQ;
1408		1558
1409	req->type = ix;	1559	req->type = ix;
1410	req->fh = newSVsv (fh);	1560	req->sv1 = newSVsv (fh);
1411	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1561	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1412		1562
1413	REQ_SEND (req);	1563	REQ_SEND (req);
1414	}	1564	}
1415		1565
1416	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
1417	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)
1418	SV * fh
1419	UV offset
1420	UV length
1421	SV8 * data
1422	UV dataoffset
1423	SV * callback
1424	ALIAS:	1582	ALIAS:
1425	aio_read = REQ_READ	1583	aio_read = REQ_READ
1426	aio_write = REQ_WRITE	1584	aio_write = REQ_WRITE
1427	PROTOTYPE: $$$$$;$	1585	PROTOTYPE: $$$$$;$
1428	PPCODE:	1586	PPCODE:
1429	{	1587	{
1430	STRLEN svlen;	1588	STRLEN svlen;
1431	char *svptr = SvPVbyte (data, svlen);	1589	char *svptr = SvPVbyte (data, svlen);
		1590	UV len = SvUV (length);
1432		1591
1433	SvUPGRADE (data, SVt_PV);	1592	SvUPGRADE (data, SVt_PV);
1434	SvPOK_on (data);	1593	SvPOK_on (data);
1435		1594
1436	if (dataoffset < 0)	1595	if (dataoffset < 0)
1437	dataoffset += svlen;	1596	dataoffset += svlen;
1438		1597
1439	if (dataoffset < 0 || dataoffset > svlen)	1598	if (dataoffset < 0 || dataoffset > svlen)
1440	croak ("data offset outside of string");	1599	croak ("dataoffset outside of data scalar");
1441		1600
1442	if (ix == REQ_WRITE)	1601	if (ix == REQ_WRITE)
1443	{	1602	{
1444	/* write: check length and adjust. */	1603	/* write: check length and adjust. */
1445	if (length < 0 || length + dataoffset > svlen)	1604	if (!SvOK (length) || len + dataoffset > svlen)
1446	length = svlen - dataoffset;	1605	len = svlen - dataoffset;
1447	}	1606	}
1448	else	1607	else
1449	{	1608	{
1450	/* read: grow scalar as necessary */	1609	/* read: grow scalar as necessary */
1451	svptr = SvGROW (data, length + dataoffset);	1610	svptr = SvGROW (data, len + dataoffset + 1);
1452	}	1611	}
1453		1612
1454	if (length < 0)	1613	if (len < 0)
1455	croak ("length must not be negative");	1614	croak ("length must not be negative");
1456		1615
1457	{	1616	{
1458	dREQ;	1617	dREQ;
1459		1618
1460	req->type = ix;	1619	req->type = ix;
1461	req->fh = newSVsv (fh);	1620	req->sv1 = newSVsv (fh);
1462	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1621	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1463	: IoOFP (sv_2io (fh)));	1622	: IoOFP (sv_2io (fh)));
1464	req->offs = offset;	1623	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1465	req->size = length;	1624	req->size = len;
1466	req->sv1 = SvREFCNT_inc (data);	1625	req->sv2 = SvREFCNT_inc (data);
1467	req->ptr1 = (char *)svptr + dataoffset;	1626	req->ptr1 = (char *)svptr + dataoffset;
1468	req->stroffset = dataoffset;	1627	req->stroffset = dataoffset;
1469		1628
1470	if (!SvREADONLY (data))	1629	if (!SvREADONLY (data))
1471	{	1630	{
1472	SvREADONLY_on (data);	1631	SvREADONLY_on (data);
1473	req->flags |= FLAG_SV1_RO_OFF;	1632	req->flags |= FLAG_SV2_RO_OFF;
1474	}	1633	}
1475		1634
1476	REQ_SEND;	1635	REQ_SEND;
1477	}	1636	}
1478	}	1637	}
1479		1638
1480	void	1639	void
1481	aio_readlink (path,callback=&PL_sv_undef)	1640	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1482	SV8 * path
1483	SV * callback
1484	PROTOTYPE: $$;$	1641	PROTOTYPE: $$;$
1485	PPCODE:	1642	PPCODE:
1486	{	1643	{
1487	SV *data;	1644	SV *data;
1488	dREQ;	1645	dREQ;
1489		1646
1490	data = newSV (NAME_MAX);	1647	data = newSV (NAME_MAX);
1491	SvPOK_on (data);	1648	SvPOK_on (data);
1492		1649
1493	req->type = REQ_READLINK;	1650	req->type = REQ_READLINK;
1494	req->fh = newSVsv (path);	1651	req->sv1 = newSVsv (path);
1495	req->ptr2 = SvPVbyte_nolen (req->fh);	1652	req->ptr2 = SvPVbyte_nolen (req->sv1);
1496	req->sv1 = data;	1653	req->sv2 = data;
1497	req->ptr1 = SvPVbyte_nolen (data);	1654	req->ptr1 = SvPVbyte_nolen (data);
1498		1655
1499	REQ_SEND;	1656	REQ_SEND;
1500	}	1657	}
1501		1658
1502	void	1659	void
1503	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1660	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1504	SV * out_fh
1505	SV * in_fh
1506	UV in_offset
1507	UV length
1508	SV * callback
1509	PROTOTYPE: $$$$;$	1661	PROTOTYPE: $$$$;$
1510	PPCODE:	1662	PPCODE:
1511	{	1663	{
1512	dREQ;	1664	dREQ;
1513		1665
1514	req->type = REQ_SENDFILE;	1666	req->type = REQ_SENDFILE;
1515	req->fh = newSVsv (out_fh);	1667	req->sv1 = newSVsv (out_fh);
1516	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1668	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1517	req->sv2 = newSVsv (in_fh);	1669	req->sv2 = newSVsv (in_fh);
1518	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1670	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1519	req->offs = in_offset;	1671	req->offs = SvVAL64 (in_offset);
1520	req->size = length;	1672	req->size = length;
1521		1673
1522	REQ_SEND;	1674	REQ_SEND;
1523	}	1675	}
1524		1676
1525	void	1677	void
1526	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1678	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1527	SV * fh
1528	UV offset
1529	IV length
1530	SV * callback
1531	PROTOTYPE: $$$;$	1679	PROTOTYPE: $$$;$
1532	PPCODE:	1680	PPCODE:
1533	{	1681	{
1534	dREQ;	1682	dREQ;
1535		1683
1536	req->type = REQ_READAHEAD;	1684	req->type = REQ_READAHEAD;
1537	req->fh = newSVsv (fh);	1685	req->sv1 = newSVsv (fh);
1538	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1686	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1539	req->offs = offset;	1687	req->offs = SvVAL64 (offset);
1540	req->size = length;	1688	req->size = length;
1541		1689
1542	REQ_SEND;	1690	REQ_SEND;
1543	}	1691	}
1544		1692
1545	void	1693	void
1546	aio_stat (fh_or_path,callback=&PL_sv_undef)	1694	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1547	SV8 * fh_or_path
1548	SV * callback
1549	ALIAS:	1695	ALIAS:
1550	aio_stat = REQ_STAT	1696	aio_stat = REQ_STAT
1551	aio_lstat = REQ_LSTAT	1697	aio_lstat = REQ_LSTAT
1552	PPCODE:	1698	PPCODE:
1553	{	1699	{
1554	dREQ;	1700	dREQ;
1555		1701
1556	req->ptr2 = malloc (sizeof (Stat_t));	1702	req->ptr2 = malloc (sizeof (Stat_t));
1557	if (!req->ptr2)	1703	if (!req->ptr2)
1558	{	1704	{
1559	req_free (req);	1705	req_destroy (req);
1560	croak ("out of memory during aio_stat statdata allocation");	1706	croak ("out of memory during aio_stat statdata allocation");
1561	}	1707	}
1562		1708
1563	req->flags |= FLAG_PTR2_FREE;	1709	req->flags |= FLAG_PTR2_FREE;
		1710	req->sv1 = newSVsv (fh_or_path);
1564		1711
1565	if (SvPOK (fh_or_path))	1712	if (SvPOK (fh_or_path))
1566	{	1713	{
1567	req->type = ix;	1714	req->type = ix;
1568	req->sv1 = newSVsv (fh_or_path);
1569	req->ptr1 = SvPVbyte_nolen (req->sv1);	1715	req->ptr1 = SvPVbyte_nolen (req->sv1);
1570	}	1716	}
1571	else	1717	else
1572	{	1718	{
1573	req->type = REQ_FSTAT;	1719	req->type = REQ_FSTAT;
1574	req->fh = newSVsv (fh_or_path);
1575	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1720	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1576	}	1721	}
1577		1722
1578	REQ_SEND;	1723	REQ_SEND;
1579	}	1724	}
1580		1725
1581	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
1582	aio_unlink (pathname,callback=&PL_sv_undef)	1821	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1583	SV8 * pathname
1584	SV * callback
1585	ALIAS:	1822	ALIAS:
1586	aio_unlink = REQ_UNLINK	1823	aio_unlink = REQ_UNLINK
1587	aio_rmdir = REQ_RMDIR	1824	aio_rmdir = REQ_RMDIR
1588	aio_readdir = REQ_READDIR	1825	aio_readdir = REQ_READDIR
1589	PPCODE:	1826	PPCODE:
…		…
1596		1833
1597	REQ_SEND;	1834	REQ_SEND;
1598	}	1835	}
1599		1836
1600	void	1837	void
		1838	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1839	PPCODE:
		1840	{
		1841	dREQ;
		1842
		1843	req->type = REQ_MKDIR;
		1844	req->sv1 = newSVsv (pathname);
		1845	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1846	req->mode = mode;
		1847
		1848	REQ_SEND;
		1849	}
		1850
		1851	void
1601	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1852	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1602	SV8 * oldpath
1603	SV8 * newpath
1604	SV * callback
1605	ALIAS:	1853	ALIAS:
1606	aio_link = REQ_LINK	1854	aio_link = REQ_LINK
1607	aio_symlink = REQ_SYMLINK	1855	aio_symlink = REQ_SYMLINK
1608	aio_rename = REQ_RENAME	1856	aio_rename = REQ_RENAME
1609	PPCODE:	1857	PPCODE:
1610	{	1858	{
1611	dREQ;	1859	dREQ;
1612		1860
1613	req->type = ix;	1861	req->type = ix;
1614	req->fh = newSVsv (oldpath);	1862	req->sv2 = newSVsv (oldpath);
1615	req->ptr2 = SvPVbyte_nolen (req->fh);	1863	req->ptr2 = SvPVbyte_nolen (req->sv2);
1616	req->sv1 = newSVsv (newpath);	1864	req->sv1 = newSVsv (newpath);
1617	req->ptr1 = SvPVbyte_nolen (req->sv1);	1865	req->ptr1 = SvPVbyte_nolen (req->sv1);
1618		1866
1619	REQ_SEND;	1867	REQ_SEND;
1620	}	1868	}
1621		1869
1622	void	1870	void
1623	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1871	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1624	SV8 * pathname
1625	SV * callback
1626	UV mode
1627	UV dev
1628	PPCODE:	1872	PPCODE:
1629	{	1873	{
1630	dREQ;	1874	dREQ;
1631		1875
1632	req->type = REQ_MKNOD;	1876	req->type = REQ_MKNOD;
…		…
1637		1881
1638	REQ_SEND;	1882	REQ_SEND;
1639	}	1883	}
1640		1884
1641	void	1885	void
1642	aio_busy (delay,callback=&PL_sv_undef)	1886	aio_busy (double delay, SV *callback=&PL_sv_undef)
1643	double delay
1644	SV * callback
1645	PPCODE:	1887	PPCODE:
1646	{	1888	{
1647	dREQ;	1889	dREQ;
1648		1890
1649	req->type = REQ_BUSY;	1891	req->type = REQ_BUSY;
1650	req->int1 = delay < 0. ? 0 : delay;	1892	req->nv1 = delay < 0. ? 0. : delay;
1651	req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1652		1893
1653	REQ_SEND;	1894	REQ_SEND;
1654	}	1895	}
1655		1896
1656	void	1897	void
1657	aio_group (callback=&PL_sv_undef)	1898	aio_group (SV *callback=&PL_sv_undef)
1658	SV * callback
1659	PROTOTYPE: ;$	1899	PROTOTYPE: ;$
1660	PPCODE:	1900	PPCODE:
1661	{	1901	{
1662	dREQ;	1902	dREQ;
1663		1903
…		…
1666	req_send (req);	1906	req_send (req);
1667	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1907	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1668	}	1908	}
1669		1909
1670	void	1910	void
1671	aio_nop (callback=&PL_sv_undef)	1911	aio_nop (SV *callback=&PL_sv_undef)
1672	SV * callback	1912	ALIAS:
		1913	aio_nop = REQ_NOP
		1914	aio_sync = REQ_SYNC
1673	PPCODE:	1915	PPCODE:
1674	{	1916	{
1675	dREQ;	1917	dREQ;
1676		1918
1677	req->type = REQ_NOP;	1919	req->type = ix;
1678		1920
1679	REQ_SEND;	1921	REQ_SEND;
1680	}	1922	}
1681		1923
1682	int	1924	int
…		…
1748	CODE:	1990	CODE:
1749	{	1991	{
1750	if (block_sig_level)	1992	if (block_sig_level)
1751	croak ("cannot call IO::AIO::setsig from within aio_block/callback");	1993	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1752		1994
1753	LOCK (reslock);	1995	X_LOCK (reslock);
1754	main_tid = pthread_self ();	1996	main_tid = pthread_self ();
1755	main_sig = signum;	1997	main_sig = signum;
1756	UNLOCK (reslock);	1998	X_UNLOCK (reslock);
1757		1999
1758	if (main_sig && npending)	2000	if (main_sig && npending)
1759	pthread_kill (main_tid, main_sig);	2001	pthread_kill (main_tid, main_sig);
1760	}	2002	}
1761		2003
…		…
1768		2010
1769	block_sig ();	2011	block_sig ();
1770	PUSHMARK (SP);	2012	PUSHMARK (SP);
1771	PUTBACK;	2013	PUTBACK;
1772	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);	2014	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1773	SPAGAIN;
1774	unblock_sig ();	2015	unblock_sig ();
1775		2016
1776	if (SvTRUE (ERRSV))	2017	if (SvTRUE (ERRSV))
1777	croak (0);	2018	croak (0);
1778		2019
…		…
1805		2046
1806	int	2047	int
1807	nthreads()	2048	nthreads()
1808	PROTOTYPE:	2049	PROTOTYPE:
1809	CODE:	2050	CODE:
1810	if (WORDACCESS_UNSAFE) LOCK (wrklock);	2051	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1811	RETVAL = started;	2052	RETVAL = started;
1812	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	2053	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1813	OUTPUT:	2054	OUTPUT:
1814	RETVAL	2055	RETVAL
1815		2056
1816	PROTOTYPES: DISABLE	2057	PROTOTYPES: DISABLE
1817		2058

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