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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.88 by root, Mon Oct 30 23:43:17 2006 UTC vs.
Revision 1.112 by root, Tue Apr 1 19:40:47 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
…		…
51	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
52	#ifndef NAME_MAX	88	#ifndef NAME_MAX
53	# define NAME_MAX 4096	89	# define NAME_MAX 4096
54	#endif	90	#endif
55		91
56	#ifndef PTHREAD_STACK_MIN
57	/* care for broken platforms, e.g. windows */
58	# define PTHREAD_STACK_MIN 16384
59	#endif
60
61	#if __ia64
62	# define STACKSIZE 65536
63	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64	# define STACKSIZE PTHREAD_STACK_MIN
65	#else
66	# define STACKSIZE 16384
67	#endif
68
69	/* wether word reads are potentially non-atomic.
70	* this is conservatice, likely most arches this runs
71	* on have atomic word read/writes.
72	*/
73	#ifndef WORDACCESS_UNSAFE
74	# if __i386 || __x86_64
75	# define WORDACCESS_UNSAFE 0
76	# else
77	# define WORDACCESS_UNSAFE 1
78	# endif
79	#endif
80
81	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
82	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
83		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
84	#define dBUF \	104	#define dBUF \
85	char *aio_buf; \	105	char *aio_buf; \
86	LOCK (wrklock); \	106	X_LOCK (wrklock); \
87	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
89	if (!aio_buf) \	109	if (!aio_buf) \
90	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
91		113
92	enum {	114	enum {
93	REQ_QUIT,	115	REQ_QUIT,
94	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
95	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
96	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
97	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,
98	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
99	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100	REQ_MKNOD, REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
101	REQ_LINK, REQ_SYMLINK, REQ_READLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
103	REQ_BUSY,	129	REQ_BUSY,
104	};	130	};
…		…
108		134
109	typedef struct aio_cb	135	typedef struct aio_cb
110	{	136	{
111	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
112		138
113	SV *callback, *fh;	139	SV *callback;
114	SV *sv1, *sv2;	140	SV *sv1, *sv2;
115	void *ptr1, *ptr2;	141	void *ptr1, *ptr2;
116	off_t offs;	142	off_t offs;
117	size_t size;	143	size_t size;
118	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
119		146
120	STRLEN stroffset;	147	STRLEN stroffset;
121	int type;	148	int type;
122	int int1, int2;	149	int int1, int2, int3;
123	int errorno;	150	int errorno;
124	mode_t mode; /* open */	151	mode_t mode; /* open */
125		152
126	unsigned char flags;	153	unsigned char flags;
127	unsigned char pri;	154	unsigned char pri;
…		…
129	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
130	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
131	} aio_cb;	158	} aio_cb;
132		159
133	enum {	160	enum {
134	FLAG_CANCELLED = 0x01,	161	FLAG_CANCELLED = 0x01, /* request was cancelled */
135	FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */	162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
136	FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */	163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
137	};	164	};
138		165
139	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
140	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
141		168
…		…
158	{	185	{
159	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS	186	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
160	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	187	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
161	}	188	}
162		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
163	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
164		225
165	static unsigned int started, idle, wanted;	226	static unsigned int started, idle, wanted;
166		227
167	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
168	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
169	#else
170	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171	#endif
172
173	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
174	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
175
176	/* worker threads management */	228	/* worker threads management */
177	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
178		230
179	typedef struct worker {	231	typedef struct worker {
180	/* locked by wrklock */	232	/* locked by wrklock */
181	struct worker *prev, *next;	233	struct worker *prev, *next;
182		234
183	pthread_t tid;	235	thread_t tid;
184		236
185	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
186	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
187	void *dbuf;	239	void *dbuf;
188	DIR *dirp;	240	DIR *dirp;
…		…
214	}	266	}
215		267
216	static volatile unsigned int nreqs, nready, npending;	268	static volatile unsigned int nreqs, nready, npending;
217	static volatile unsigned int max_idle = 4;	269	static volatile unsigned int max_idle = 4;
218	static volatile unsigned int max_outstanding = 0xffffffff;	270	static volatile unsigned int max_outstanding = 0xffffffff;
219	static int respipe [2];	271	static int respipe_osf [2], respipe [2] = { -1, -1 };
220		272
221	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
222	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
223	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
224		276
225	#if WORDACCESS_UNSAFE	277	#if WORDACCESS_UNSAFE
226		278
227	static unsigned int get_nready ()	279	static unsigned int get_nready (void)
228	{	280	{
229	unsigned int retval;	281	unsigned int retval;
230		282
231	LOCK (reqlock);	283	X_LOCK (reqlock);
232	retval = nready;	284	retval = nready;
233	UNLOCK (reqlock);	285	X_UNLOCK (reqlock);
234		286
235	return retval;	287	return retval;
236	}	288	}
237		289
238	static unsigned int get_npending ()	290	static unsigned int get_npending (void)
239	{	291	{
240	unsigned int retval;	292	unsigned int retval;
241		293
242	LOCK (reslock);	294	X_LOCK (reslock);
243	retval = npending;	295	retval = npending;
244	UNLOCK (reslock);	296	X_UNLOCK (reslock);
245		297
246	return retval;	298	return retval;
247	}	299	}
248		300
249	static unsigned int get_nthreads ()	301	static unsigned int get_nthreads (void)
250	{	302	{
251	unsigned int retval;	303	unsigned int retval;
252		304
253	LOCK (wrklock);	305	X_LOCK (wrklock);
254	retval = started;	306	retval = started;
255	UNLOCK (wrklock);	307	X_UNLOCK (wrklock);
256		308
257	return retval;	309	return retval;
258	}	310	}
259		311
260	#else	312	#else
…		…
317	}	369	}
318		370
319	abort ();	371	abort ();
320	}	372	}
321		373
322	static int poll_cb ();	374	static int poll_cb (void);
323	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
324	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
325	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
326		378
327	/* must be called at most once */	379	/* must be called at most once */
328	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
329	{	381	{
…		…
348	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
349	}	401	}
350		402
351	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
352	{	404	{
		405	block_sig ();
		406
353	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354	{	408	{
355	int old_len = grp->size;	409	int old_len = grp->size;
356		410
357	if (grp->sv2 && SvOK (grp->sv2))	411	if (grp->sv2 && SvOK (grp->sv2))
…		…
375	SvREFCNT_dec (grp->sv2);	429	SvREFCNT_dec (grp->sv2);
376	grp->sv2 = 0;	430	grp->sv2 = 0;
377	break;	431	break;
378	}	432	}
379	}	433	}
		434
		435	unblock_sig ();
380	}	436	}
381		437
382	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
383	{	439	{
384	--grp->size;	440	--grp->size;
…		…
387	aio_grp_feed (grp);	443	aio_grp_feed (grp);
388		444
389	/* finish, if done */	445	/* finish, if done */
390	if (!grp->size && grp->int1)	446	if (!grp->size && grp->int1)
391	{	447	{
		448	block_sig ();
		449
392	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
393	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
394	}	459	}
395	}	460	}
396		461
397	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
398	{	463	{
399	dSP;	464	dSP;
400		465
401	if (req->flags & FLAG_SV1_RO_OFF)	466	if (req->flags & FLAG_SV2_RO_OFF)
402	SvREADONLY_off (req->sv1);	467	SvREADONLY_off (req->sv2);
403		468
404	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
405	{	470	{
406	ENTER;	471	ENTER;
407	SAVETMPS;	472	SAVETMPS;
…		…
438	break;	503	break;
439		504
440	case REQ_OPEN:	505	case REQ_OPEN:
441	{	506	{
442	/* convert fd to fh */	507	/* convert fd to fh */
443	SV *fh;	508	SV *fh = &PL_sv_undef;
444		509
445	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
446	PUTBACK;	511	{
447	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
448	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);
449		519
450	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	);
451		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
452	PUSHMARK (SP);	532	PUSHs (fh);
453	XPUSHs (sv_2mortal (fh));
454	}	533	}
455	break;	534	break;
456		535
457	case REQ_GROUP:	536	case REQ_GROUP:
458	req->int1 = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
…		…
473	break;	552	break;
474		553
475	case REQ_READLINK:	554	case REQ_READLINK:
476	if (req->result > 0)	555	if (req->result > 0)
477	{	556	{
478	SvCUR_set (req->sv1, req->result);	557	SvCUR_set (req->sv2, req->result);
479	*SvEND (req->sv1) = 0;	558	*SvEND (req->sv2) = 0;
480	PUSHs (req->sv1);	559	PUSHs (req->sv2);
481	}	560	}
482	break;	561	break;
483		562
484	case REQ_STAT:	563	case REQ_STAT:
485	case REQ_LSTAT:	564	case REQ_LSTAT:
…		…
489	PL_statcache = *(Stat_t *)(req->ptr2);	568	PL_statcache = *(Stat_t *)(req->ptr2);
490	PUSHs (sv_2mortal (newSViv (req->result)));	569	PUSHs (sv_2mortal (newSViv (req->result)));
491	break;	570	break;
492		571
493	case REQ_READ:	572	case REQ_READ:
494	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));
495	*SvEND (req->sv1) = 0;	574	*SvEND (req->sv2) = 0;
496	PUSHs (sv_2mortal (newSViv (req->result)));	575	PUSHs (sv_2mortal (newSViv (req->result)));
497	break;	576	break;
498		577
499	default:	578	default:
500	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
…		…
502	}	581	}
503		582
504	errno = req->errorno;	583	errno = req->errorno;
505		584
506	PUTBACK;	585	PUTBACK;
507	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508	SPAGAIN;	587	SPAGAIN;
509		588
510	FREETMPS;	589	FREETMPS;
511	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
512	}	593	}
513		594
514	if (req->grp)	595	if (req->grp)
515	{	596	{
516	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
523	grp->grp_first = req->grp_next;	604	grp->grp_first = req->grp_next;
524		605
525	aio_grp_dec (grp);	606	aio_grp_dec (grp);
526	}	607	}
527		608
528	if (SvTRUE (ERRSV))	609	return !SvTRUE (ERRSV);
529	{
530	req_free (req);
531	croak (0);
532	}
533	}	610	}
534		611
535	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
536	{	613	{
537	if (req->self)	614	if (req->self)
538	{	615	{
539	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
540	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
541	}	618	}
542		619
543	SvREFCNT_dec (req->fh);
544	SvREFCNT_dec (req->sv1);	620	SvREFCNT_dec (req->sv1);
545	SvREFCNT_dec (req->sv2);	621	SvREFCNT_dec (req->sv2);
546	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
547		623
548	if (req->flags & FLAG_PTR2_FREE)	624	if (req->flags & FLAG_PTR2_FREE)
…		…
570	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
571		647
572	req_cancel_subs (req);	648	req_cancel_subs (req);
573	}	649	}
574		650
575	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);
576		696
577	static void start_thread (void)	697	static void start_thread (void)
578	{	698	{
579	sigset_t fullsigset, oldsigset;
580	pthread_attr_t attr;
581
582	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
583		700
584	if (!wrk)	701	if (!wrk)
585	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
586		703
587	pthread_attr_init (&attr);
588	pthread_attr_setstacksize (&attr, STACKSIZE);
589	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590	#ifdef PTHREAD_SCOPE_PROCESS
591	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
592	#endif
593
594	sigfillset (&fullsigset);
595
596	LOCK (wrklock);	704	X_LOCK (wrklock);
597	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
598		705
599	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
600	{	707	{
601	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
602	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
603	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
604	wrk_first.next = wrk;	711	wrk_first.next = wrk;
605	++started;	712	++started;
606	}	713	}
607	else	714	else
608	free (wrk);	715	free (wrk);
609		716
610	sigprocmask (SIG_SETMASK, &oldsigset, 0);
611	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
612	}	718	}
613		719
614	static void maybe_start_thread ()	720	static void maybe_start_thread (void)
615	{	721	{
616	if (get_nthreads () >= wanted)	722	if (get_nthreads () >= wanted)
617	return;	723	return;
618		724
619	/* todo: maybe use idle here, but might be less exact */	725	/* todo: maybe use idle here, but might be less exact */
…		…
623	start_thread ();	729	start_thread ();
624	}	730	}
625		731
626	static void req_send (aio_req req)	732	static void req_send (aio_req req)
627	{	733	{
		734	block_sig ();
		735
628	++nreqs;	736	++nreqs;
629		737
630	LOCK (reqlock);	738	X_LOCK (reqlock);
631	++nready;	739	++nready;
632	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
633	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
634	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
		743
		744	unblock_sig ();
635		745
636	maybe_start_thread ();	746	maybe_start_thread ();
637	}	747	}
638		748
639	static void end_thread (void)	749	static void end_thread (void)
…		…
643	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
644		754
645	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
646	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
647		757
648	LOCK (reqlock);	758	X_LOCK (reqlock);
649	reqq_push (&req_queue, req);	759	reqq_push (&req_queue, req);
650	pthread_cond_signal (&reqwait);	760	X_COND_SIGNAL (reqwait);
651	UNLOCK (reqlock);	761	X_UNLOCK (reqlock);
652		762
653	LOCK (wrklock);	763	X_LOCK (wrklock);
654	--started;	764	--started;
655	UNLOCK (wrklock);	765	X_UNLOCK (wrklock);
656	}	766	}
657		767
658	static void set_max_idle (int nthreads)	768	static void set_max_idle (int nthreads)
659	{	769	{
660	if (WORDACCESS_UNSAFE) LOCK (reqlock);	770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
661	max_idle = nthreads <= 0 ? 1 : nthreads;	771	max_idle = nthreads <= 0 ? 1 : nthreads;
662	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
663	}	773	}
664		774
665	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
666	{	776	{
667	if (wanted < nthreads)	777	if (wanted < nthreads)
…		…
675		785
676	while (started > wanted)	786	while (started > wanted)
677	end_thread ();	787	end_thread ();
678	}	788	}
679		789
680	static void poll_wait ()	790	static void poll_wait (void)
681	{	791	{
682	fd_set rfd;	792	fd_set rfd;
683		793
684	while (nreqs)	794	while (nreqs)
685	{	795	{
686	int size;	796	int size;
687	if (WORDACCESS_UNSAFE) LOCK (reslock);	797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
688	size = res_queue.size;	798	size = res_queue.size;
689	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
690		800
691	if (size)	801	if (size)
692	return;	802	return;
693		803
694	maybe_start_thread ();	804	maybe_start_thread ();
695		805
696	FD_ZERO(&rfd);	806	FD_ZERO (&rfd);
697	FD_SET(respipe [0], &rfd);	807	FD_SET (respipe [0], &rfd);
698		808
699	select (respipe [0] + 1, &rfd, 0, 0, 0);	809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
700	}	810	}
701	}	811	}
702		812
703	static int poll_cb ()	813	static int poll_cb (void)
704	{	814	{
705	dSP;	815	dSP;
706	int count = 0;	816	int count = 0;
707	int maxreqs = max_poll_reqs;	817	int maxreqs = max_poll_reqs;
708	int do_croak = 0;	818	int do_croak = 0;
…		…
710	aio_req req;	820	aio_req req;
711		821
712	if (max_poll_time)	822	if (max_poll_time)
713	gettimeofday (&tv_start, 0);	823	gettimeofday (&tv_start, 0);
714		824
		825	block_sig ();
		826
715	for (;;)	827	for (;;)
716	{	828	{
717	for (;;)	829	for (;;)
718	{	830	{
719	maybe_start_thread ();	831	maybe_start_thread ();
720		832
721	LOCK (reslock);	833	X_LOCK (reslock);
722	req = reqq_shift (&res_queue);	834	req = reqq_shift (&res_queue);
723		835
724	if (req)	836	if (req)
725	{	837	{
726	--npending;	838	--npending;
727		839
728	if (!res_queue.size)	840	if (!res_queue.size)
729	{	841	{
730	/* read any signals sent by the worker threads */	842	/* read any signals sent by the worker threads */
731	char buf [32];	843	char buf [4];
732	while (read (respipe [0], buf, 32) == 32)	844	while (respipe_read (respipe [0], buf, 4) == 4)
733	;	845	;
734	}	846	}
735	}	847	}
736		848
737	UNLOCK (reslock);	849	X_UNLOCK (reslock);
738		850
739	if (!req)	851	if (!req)
740	break;	852	break;
741		853
742	--nreqs;	854	--nreqs;
…		…
746	req->int1 = 1; /* mark request as delayed */	858	req->int1 = 1; /* mark request as delayed */
747	continue;	859	continue;
748	}	860	}
749	else	861	else
750	{	862	{
751	req_invoke (req);	863	if (!req_invoke (req))
		864	{
		865	req_destroy (req);
		866	unblock_sig ();
		867	croak (0);
		868	}
752		869
753	count++;	870	count++;
754	}	871	}
755		872
756	req_free (req);	873	req_destroy (req);
757		874
758	if (maxreqs && !--maxreqs)	875	if (maxreqs && !--maxreqs)
759	break;	876	break;
760		877
761	if (max_poll_time)	878	if (max_poll_time)
…		…
773	poll_wait ();	890	poll_wait ();
774		891
775	++maxreqs;	892	++maxreqs;
776	}	893	}
777		894
		895	unblock_sig ();
778	return count;	896	return count;
779	}
780
781	static void create_pipe ()
782	{
783	if (pipe (respipe))
784	croak ("unable to initialize result pipe");
785
786	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
787	croak ("cannot set result pipe to nonblocking mode");
788
789	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
790	croak ("cannot set result pipe to nonblocking mode");
791	}	897	}
792		898
793	/*****************************************************************************/	899	/*****************************************************************************/
794	/* work around various missing functions */	900	/* work around various missing functions */
795		901
…		…
800	/*	906	/*
801	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
802	* 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,
803	* but that's your problem, not mine.	909	* but that's your problem, not mine.
804	*/	910	*/
805	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
806		912
807	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)
808	{	914	{
809	ssize_t res;	915	ssize_t res;
810	off_t ooffset;	916	off_t ooffset;
811		917
812	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
813	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
814	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
815	res = read (fd, buf, count);	921	res = read (fd, buf, count);
816	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
817	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
818		924
819	return res;	925	return res;
820	}	926	}
821		927
822	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)
823	{	929	{
824	ssize_t res;	930	ssize_t res;
825	off_t ooffset;	931	off_t ooffset;
826		932
827	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
828	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
829	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
830	res = write (fd, buf, count);	936	res = write (fd, buf, count);
831	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
832	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
833		939
834	return res;	940	return res;
835	}	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
836	#endif	970	#endif
837		971
838	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
839	# define fdatasync fsync	973	# define fdatasync fsync
840	#endif	974	#endif
…		…
842	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
843	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
844		978
845	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)
846	{	980	{
		981	size_t todo = count;
847	dBUF;	982	dBUF;
848		983
849	while (count > 0)	984	while (todo > 0)
850	{	985	{
851	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
852		987
853	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
854	offset += len;	989	offset += len;
855	count -= len;	990	todo -= len;
856	}	991	}
857		992
858	errno = 0;	993	errno = 0;
		994	return count;
859	}	995	}
860		996
861	#endif	997	#endif
862		998
863	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
864	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
865		1001
866	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
867		1003
868	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)
869	{	1005	{
870	struct dirent *e;	1006	X_DIRENT *e;
871	int errorno;	1007	int errorno;
872		1008
873	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
874		1010
875	e = readdir (dirp);	1011	e = readdir (dirp);
876	errorno = errno;	1012	errorno = errno;
877		1013
878	if (e)	1014	if (e)
…		…
881	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
882	}	1018	}
883	else	1019	else
884	*res = 0;	1020	*res = 0;
885		1021
886	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
887		1023
888	errno = errorno;	1024	errno = errorno;
889	return e ? 0 : -1;	1025	return e ? 0 : -1;
890	}	1026	}
891	#endif	1027	#endif
…		…
987	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
988	{	1124	{
989	DIR *dirp;	1125	DIR *dirp;
990	union	1126	union
991	{	1127	{
992	struct dirent d;	1128	X_DIRENT d;
993	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
994	} *u;	1130	} *u;
995	struct dirent *entp;	1131	X_DIRENT *entp;
996	char *name, *names;	1132	char *name, *names;
997	int memlen = 4096;	1133	int memlen = 4096;
998	int memofs = 0;	1134	int memofs = 0;
999	int res = 0;	1135	int res = 0;
1000	int errorno;
1001		1136
1002	LOCK (wrklock);	1137	X_LOCK (wrklock);
1003	self->dirp = dirp = opendir (req->ptr1);	1138	self->dirp = dirp = opendir (req->ptr1);
1004	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
1005	req->flags |= FLAG_PTR2_FREE;	1140	req->flags |= FLAG_PTR2_FREE;
1006	req->ptr2 = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
1007	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
1008		1143
1009	if (dirp && u && names)	1144	if (dirp && u && names)
1010	for (;;)	1145	for (;;)
1011	{	1146	{
1012	errno = 0;	1147	errno = 0;
…		…
1024	res++;	1159	res++;
1025		1160
1026	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
1027	{	1162	{
1028	memlen *= 2;	1163	memlen *= 2;
1029	LOCK (wrklock);	1164	X_LOCK (wrklock);
1030	req->ptr2 = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
1031	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
1032		1167
1033	if (!names)	1168	if (!names)
1034	break;	1169	break;
1035	}	1170	}
1036		1171
…		…
1045	req->result = res;	1180	req->result = res;
1046	}	1181	}
1047		1182
1048	/*****************************************************************************/	1183	/*****************************************************************************/
1049		1184
1050	static void *aio_proc (void *thr_arg)	1185	X_THREAD_PROC (aio_proc)
1051	{	1186	{
1052	aio_req req;	1187	aio_req req;
1053	struct timespec ts;	1188	struct timespec ts;
1054	worker *self = (worker *)thr_arg;	1189	worker *self = (worker *)thr_arg;
1055		1190
1056	/* try to distribute timeouts somewhat evenly */	1191	/* try to distribute timeouts somewhat randomly */
1057	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1192	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1058	* (1000000000UL / 1024UL);
1059		1193
1060	for (;;)	1194	for (;;)
1061	{	1195	{
1062	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1196	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1063		1197
1064	LOCK (reqlock);	1198	X_LOCK (reqlock);
1065		1199
1066	for (;;)	1200	for (;;)
1067	{	1201	{
1068	self->req = req = reqq_shift (&req_queue);	1202	self->req = req = reqq_shift (&req_queue);
1069		1203
1070	if (req)	1204	if (req)
1071	break;	1205	break;
1072		1206
1073	++idle;	1207	++idle;
1074		1208
1075	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1209	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1076	== ETIMEDOUT)	1210	== ETIMEDOUT)
1077	{	1211	{
1078	if (idle > max_idle)	1212	if (idle > max_idle)
1079	{	1213	{
1080	--idle;	1214	--idle;
1081	UNLOCK (reqlock);	1215	X_UNLOCK (reqlock);
1082	LOCK (wrklock);	1216	X_LOCK (wrklock);
1083	--started;	1217	--started;
1084	UNLOCK (wrklock);	1218	X_UNLOCK (wrklock);
1085	goto quit;	1219	goto quit;
1086	}	1220	}
1087		1221
1088	/* we are allowed to idle, so do so without any timeout */	1222	/* we are allowed to idle, so do so without any timeout */
1089	pthread_cond_wait (&reqwait, &reqlock);	1223	X_COND_WAIT (reqwait, reqlock);
1090	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1224	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091	}	1225	}
1092		1226
1093	--idle;	1227	--idle;
1094	}	1228	}
1095		1229
1096	--nready;	1230	--nready;
1097		1231
1098	UNLOCK (reqlock);	1232	X_UNLOCK (reqlock);
1099		1233
1100	errno = 0; /* strictly unnecessary */	1234	errno = 0; /* strictly unnecessary */
1101		1235
1102	if (!(req->flags & FLAG_CANCELLED))	1236	if (!(req->flags & FLAG_CANCELLED))
1103	switch (req->type)	1237	switch (req->type)
1104	{	1238	{
1105	case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;	1239	case REQ_READ: req->result = req->offs >= 0
1106	case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;	1240	? pread (req->int1, req->ptr1, req->size, req->offs)
		1241	: read (req->int1, req->ptr1, req->size); break;
		1242	case REQ_WRITE: req->result = req->offs >= 0
		1243	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1244	: write (req->int1, req->ptr1, req->size); break;
1107		1245
1108	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	1246	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1109	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;	1247	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1110		1248
1111	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;	1249	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1112	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;	1250	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1113	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;	1251	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
		1252
		1253	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1254	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1255	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1256	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1257	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1258	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1114		1259
1115	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;	1260	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1116	case REQ_CLOSE: req->result = close (req->int1); break;	1261	case REQ_CLOSE: req->result = close (req->int1); break;
1117	case REQ_UNLINK: req->result = unlink (req->ptr1); break;	1262	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;	1263	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1264	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;	1265	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;	1266	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;	1267	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;	1268	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;	1269	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124		1270
		1271	case REQ_SYNC: req->result = 0; sync (); break;
		1272	case REQ_FSYNC: req->result = fsync (req->int1); break;
1125	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;	1273	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126	case REQ_FSYNC: req->result = fsync (req->int1); break;	1274
1127	case REQ_READDIR: scandir_ (req, self); break;	1275	case REQ_READDIR: scandir_ (req, self); break;
1128		1276
1129	case REQ_BUSY:	1277	case REQ_BUSY:
		1278	#ifdef _WIN32
		1279	Sleep (req->nv1 * 1000.);
		1280	#else
1130	{	1281	{
1131	struct timeval tv;	1282	struct timeval tv;
1132		1283
1133	tv.tv_sec = req->int1;	1284	tv.tv_sec = req->nv1;
1134	tv.tv_usec = req->int2;	1285	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1135		1286
1136	req->result = select (0, 0, 0, 0, &tv);	1287	req->result = select (0, 0, 0, 0, &tv);
		1288	}
		1289	#endif
		1290	break;
		1291
		1292	case REQ_UTIME:
		1293	case REQ_FUTIME:
		1294	{
		1295	struct timeval tv[2];
		1296	struct timeval *times;
		1297
		1298	if (req->nv1 != -1. || req->nv2 != -1.)
		1299	{
		1300	tv[0].tv_sec = req->nv1;
		1301	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1302	tv[1].tv_sec = req->nv2;
		1303	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1304
		1305	times = tv;
		1306	}
		1307	else
		1308	times = 0;
		1309
		1310
		1311	req->result = req->type == REQ_FUTIME
		1312	? futimes (req->int1, times)
		1313	: utimes (req->ptr1, times);
1137	}	1314	}
1138		1315
1139	case REQ_GROUP:	1316	case REQ_GROUP:
1140	case REQ_NOP:	1317	case REQ_NOP:
1141	break;	1318	break;
1142		1319
1143	case REQ_QUIT:	1320	case REQ_QUIT:
1144	goto quit;	1321	goto quit;
1145		1322
1146	default:	1323	default:
1147	req->result = ENOSYS;	1324	req->result = -1;
1148	break;	1325	break;
1149	}	1326	}
1150		1327
1151	req->errorno = errno;	1328	req->errorno = errno;
1152		1329
1153	LOCK (reslock);	1330	X_LOCK (reslock);
1154		1331
1155	++npending;	1332	++npending;
1156		1333
1157	if (!reqq_push (&res_queue, req))	1334	if (!reqq_push (&res_queue, req))
		1335	{
1158	/* write a dummy byte to the pipe so fh becomes ready */	1336	/* write a dummy byte to the pipe so fh becomes ready */
1159	write (respipe [1], &respipe, 1);	1337	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1338
		1339	/* optionally signal the main thread asynchronously */
		1340	if (main_sig)
		1341	pthread_kill (main_tid, main_sig);
		1342	}
1160		1343
1161	self->req = 0;	1344	self->req = 0;
1162	worker_clear (self);	1345	worker_clear (self);
1163		1346
1164	UNLOCK (reslock);	1347	X_UNLOCK (reslock);
1165	}	1348	}
1166		1349
1167	quit:	1350	quit:
1168	LOCK (wrklock);	1351	X_LOCK (wrklock);
1169	worker_free (self);	1352	worker_free (self);
1170	UNLOCK (wrklock);	1353	X_UNLOCK (wrklock);
1171		1354
1172	return 0;	1355	return 0;
1173	}	1356	}
1174		1357
1175	/*****************************************************************************/	1358	/*****************************************************************************/
1176		1359
1177	static void atfork_prepare (void)	1360	static void atfork_prepare (void)
1178	{	1361	{
1179	LOCK (wrklock);	1362	X_LOCK (wrklock);
1180	LOCK (reqlock);	1363	X_LOCK (reqlock);
1181	LOCK (reslock);	1364	X_LOCK (reslock);
1182	#if !HAVE_PREADWRITE	1365	#if !HAVE_PREADWRITE
1183	LOCK (preadwritelock);	1366	X_LOCK (preadwritelock);
1184	#endif	1367	#endif
1185	#if !HAVE_READDIR_R	1368	#if !HAVE_READDIR_R
1186	LOCK (readdirlock);	1369	X_LOCK (readdirlock);
1187	#endif	1370	#endif
1188	}	1371	}
1189		1372
1190	static void atfork_parent (void)	1373	static void atfork_parent (void)
1191	{	1374	{
1192	#if !HAVE_READDIR_R	1375	#if !HAVE_READDIR_R
1193	UNLOCK (readdirlock);	1376	X_UNLOCK (readdirlock);
1194	#endif	1377	#endif
1195	#if !HAVE_PREADWRITE	1378	#if !HAVE_PREADWRITE
1196	UNLOCK (preadwritelock);	1379	X_UNLOCK (preadwritelock);
1197	#endif	1380	#endif
1198	UNLOCK (reslock);	1381	X_UNLOCK (reslock);
1199	UNLOCK (reqlock);	1382	X_UNLOCK (reqlock);
1200	UNLOCK (wrklock);	1383	X_UNLOCK (wrklock);
1201	}	1384	}
1202		1385
1203	static void atfork_child (void)	1386	static void atfork_child (void)
1204	{	1387	{
1205	aio_req prv;	1388	aio_req prv;
1206		1389
1207	while (prv = reqq_shift (&req_queue))	1390	while (prv = reqq_shift (&req_queue))
1208	req_free (prv);	1391	req_destroy (prv);
1209		1392
1210	while (prv = reqq_shift (&res_queue))	1393	while (prv = reqq_shift (&res_queue))
1211	req_free (prv);	1394	req_destroy (prv);
1212		1395
1213	while (wrk_first.next != &wrk_first)	1396	while (wrk_first.next != &wrk_first)
1214	{	1397	{
1215	worker *wrk = wrk_first.next;	1398	worker *wrk = wrk_first.next;
1216		1399
1217	if (wrk->req)	1400	if (wrk->req)
1218	req_free (wrk->req);	1401	req_destroy (wrk->req);
1219		1402
1220	worker_clear (wrk);	1403	worker_clear (wrk);
1221	worker_free (wrk);	1404	worker_free (wrk);
1222	}	1405	}
1223		1406
…		…
1225	idle = 0;	1408	idle = 0;
1226	nreqs = 0;	1409	nreqs = 0;
1227	nready = 0;	1410	nready = 0;
1228	npending = 0;	1411	npending = 0;
1229		1412
1230	close (respipe [0]);
1231	close (respipe [1]);
1232	create_pipe ();	1413	create_respipe ();
1233		1414
1234	atfork_parent ();	1415	atfork_parent ();
1235	}	1416	}
1236		1417
1237	#define dREQ \	1418	#define dREQ \
…		…
1259		1440
1260	PROTOTYPES: ENABLE	1441	PROTOTYPES: ENABLE
1261		1442
1262	BOOT:	1443	BOOT:
1263	{	1444	{
1264	HV *stash = gv_stashpv ("IO::AIO", 1);	1445	stash = gv_stashpv ("IO::AIO", 1);
1265		1446
1266	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1267	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1268	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1452	#ifdef _WIN32
		1453	X_MUTEX_CHECK (wrklock);
		1454	X_MUTEX_CHECK (reslock);
		1455	X_MUTEX_CHECK (reqlock);
		1456	X_MUTEX_CHECK (reqwait);
		1457	X_MUTEX_CHECK (preadwritelock);
		1458	X_MUTEX_CHECK (readdirlock);
		1459
		1460	X_COND_CHECK (reqwait);
		1461	#else
1271	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1463	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1464	#endif
1272		1465
1273	create_pipe ();	1466	create_respipe ();
		1467
1274	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1468	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1275	}	1469	}
1276		1470
1277	void	1471	void
1278	max_poll_reqs (int nreqs)	1472	max_poll_reqs (int nreqs)
1279	PROTOTYPE: $	1473	PROTOTYPE: $
…		…
1308	max_outstanding = maxreqs;	1502	max_outstanding = maxreqs;
1309	OUTPUT:	1503	OUTPUT:
1310	RETVAL	1504	RETVAL
1311		1505
1312	void	1506	void
1313	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1507	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1314	SV * pathname
1315	int flags
1316	int mode
1317	SV * callback
1318	PROTOTYPE: $$$;$	1508	PROTOTYPE: $$$;$
1319	PPCODE:	1509	PPCODE:
1320	{	1510	{
1321	dREQ;	1511	dREQ;
1322		1512
1323	req->type = REQ_OPEN;	1513	req->type = REQ_OPEN;
1324	req->sv1 = newSVsv (pathname);	1514	req->sv1 = newSVsv (pathname);
1325	req->ptr1 = SvPVbyte_nolen (pathname);	1515	req->ptr1 = SvPVbyte_nolen (req->sv1);
1326	req->int1 = flags;	1516	req->int1 = flags;
1327	req->mode = mode;	1517	req->mode = mode;
1328		1518
1329	REQ_SEND;	1519	REQ_SEND;
1330	}	1520	}
1331		1521
1332	void	1522	void
1333	aio_close (fh,callback=&PL_sv_undef)	1523	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1334	SV * fh
1335	SV * callback
1336	PROTOTYPE: $;$	1524	PROTOTYPE: $;$
1337	ALIAS:	1525	ALIAS:
1338	aio_close = REQ_CLOSE
1339	aio_fsync = REQ_FSYNC	1526	aio_fsync = REQ_FSYNC
1340	aio_fdatasync = REQ_FDATASYNC	1527	aio_fdatasync = REQ_FDATASYNC
1341	PPCODE:	1528	PPCODE:
1342	{	1529	{
1343	dREQ;	1530	dREQ;
1344		1531
1345	req->type = ix;	1532	req->type = ix;
1346	req->fh = newSVsv (fh);	1533	req->sv1 = newSVsv (fh);
1347	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1534	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1348		1535
1349	REQ_SEND (req);	1536	REQ_SEND (req);
1350	}	1537	}
1351		1538
		1539	int
		1540	_dup (int fd)
		1541	PROTOTYPE: $
		1542	CODE:
		1543	RETVAL = dup (fd);
		1544	OUTPUT:
		1545	RETVAL
		1546
1352	void	1547	void
		1548	_aio_close (int fd, SV *callback=&PL_sv_undef)
		1549	PROTOTYPE: $;$
		1550	PPCODE:
		1551	{
		1552	dREQ;
		1553
		1554	req->type = REQ_CLOSE;
		1555	req->int1 = fd;
		1556
		1557	REQ_SEND (req);
		1558	}
		1559
		1560	void
1353	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1561	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1354	SV * fh
1355	UV offset
1356	UV length
1357	SV * data
1358	UV dataoffset
1359	SV * callback
1360	ALIAS:	1562	ALIAS:
1361	aio_read = REQ_READ	1563	aio_read = REQ_READ
1362	aio_write = REQ_WRITE	1564	aio_write = REQ_WRITE
1363	PROTOTYPE: $$$$$;$	1565	PROTOTYPE: $$$$$;$
1364	PPCODE:	1566	PPCODE:
1365	{	1567	{
1366	STRLEN svlen;	1568	STRLEN svlen;
1367	char *svptr = SvPVbyte (data, svlen);	1569	char *svptr = SvPVbyte (data, svlen);
		1570	UV len = SvUV (length);
1368		1571
1369	SvUPGRADE (data, SVt_PV);	1572	SvUPGRADE (data, SVt_PV);
1370	SvPOK_on (data);	1573	SvPOK_on (data);
1371		1574
1372	if (dataoffset < 0)	1575	if (dataoffset < 0)
1373	dataoffset += svlen;	1576	dataoffset += svlen;
1374		1577
1375	if (dataoffset < 0 || dataoffset > svlen)	1578	if (dataoffset < 0 || dataoffset > svlen)
1376	croak ("data offset outside of string");	1579	croak ("dataoffset outside of data scalar");
1377		1580
1378	if (ix == REQ_WRITE)	1581	if (ix == REQ_WRITE)
1379	{	1582	{
1380	/* write: check length and adjust. */	1583	/* write: check length and adjust. */
1381	if (length < 0 || length + dataoffset > svlen)	1584	if (!SvOK (length) || len + dataoffset > svlen)
1382	length = svlen - dataoffset;	1585	len = svlen - dataoffset;
1383	}	1586	}
1384	else	1587	else
1385	{	1588	{
1386	/* read: grow scalar as necessary */	1589	/* read: grow scalar as necessary */
1387	svptr = SvGROW (data, length + dataoffset);	1590	svptr = SvGROW (data, len + dataoffset + 1);
1388	}	1591	}
1389		1592
1390	if (length < 0)	1593	if (len < 0)
1391	croak ("length must not be negative");	1594	croak ("length must not be negative");
1392		1595
1393	{	1596	{
1394	dREQ;	1597	dREQ;
1395		1598
1396	req->type = ix;	1599	req->type = ix;
1397	req->fh = newSVsv (fh);	1600	req->sv1 = newSVsv (fh);
1398	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1601	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1399	: IoOFP (sv_2io (fh)));	1602	: IoOFP (sv_2io (fh)));
1400	req->offs = offset;	1603	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1401	req->size = length;	1604	req->size = len;
1402	req->sv1 = SvREFCNT_inc (data);	1605	req->sv2 = SvREFCNT_inc (data);
1403	req->ptr1 = (char *)svptr + dataoffset;	1606	req->ptr1 = (char *)svptr + dataoffset;
1404	req->stroffset = dataoffset;	1607	req->stroffset = dataoffset;
1405		1608
1406	if (!SvREADONLY (data))	1609	if (!SvREADONLY (data))
1407	{	1610	{
1408	SvREADONLY_on (data);	1611	SvREADONLY_on (data);
1409	req->flags |= FLAG_SV1_RO_OFF;	1612	req->flags |= FLAG_SV2_RO_OFF;
1410	}	1613	}
1411		1614
1412	REQ_SEND;	1615	REQ_SEND;
1413	}	1616	}
1414	}	1617	}
1415		1618
1416	void	1619	void
1417	aio_readlink (path,callback=&PL_sv_undef)	1620	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1418	SV * path
1419	SV * callback
1420	PROTOTYPE: $$;$	1621	PROTOTYPE: $$;$
1421	PPCODE:	1622	PPCODE:
1422	{	1623	{
1423	SV *data;	1624	SV *data;
1424	dREQ;	1625	dREQ;
1425		1626
1426	data = newSV (NAME_MAX);	1627	data = newSV (NAME_MAX);
1427	SvPOK_on (data);	1628	SvPOK_on (data);
1428		1629
1429	req->type = REQ_READLINK;	1630	req->type = REQ_READLINK;
1430	req->fh = newSVsv (path);	1631	req->sv1 = newSVsv (path);
1431	req->ptr2 = SvPVbyte_nolen (path);	1632	req->ptr2 = SvPVbyte_nolen (req->sv1);
1432	req->sv1 = data;	1633	req->sv2 = data;
1433	req->ptr1 = SvPVbyte_nolen (data);	1634	req->ptr1 = SvPVbyte_nolen (data);
1434		1635
1435	REQ_SEND;	1636	REQ_SEND;
1436	}	1637	}
1437		1638
1438	void	1639	void
1439	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1640	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1440	SV * out_fh
1441	SV * in_fh
1442	UV in_offset
1443	UV length
1444	SV * callback
1445	PROTOTYPE: $$$$;$	1641	PROTOTYPE: $$$$;$
1446	PPCODE:	1642	PPCODE:
1447	{	1643	{
1448	dREQ;	1644	dREQ;
1449		1645
1450	req->type = REQ_SENDFILE;	1646	req->type = REQ_SENDFILE;
1451	req->fh = newSVsv (out_fh);	1647	req->sv1 = newSVsv (out_fh);
1452	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1648	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1453	req->sv2 = newSVsv (in_fh);	1649	req->sv2 = newSVsv (in_fh);
1454	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1650	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1455	req->offs = in_offset;	1651	req->offs = SvVAL64 (in_offset);
1456	req->size = length;	1652	req->size = length;
1457		1653
1458	REQ_SEND;	1654	REQ_SEND;
1459	}	1655	}
1460		1656
1461	void	1657	void
1462	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1658	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1463	SV * fh
1464	UV offset
1465	IV length
1466	SV * callback
1467	PROTOTYPE: $$$;$	1659	PROTOTYPE: $$$;$
1468	PPCODE:	1660	PPCODE:
1469	{	1661	{
1470	dREQ;	1662	dREQ;
1471		1663
1472	req->type = REQ_READAHEAD;	1664	req->type = REQ_READAHEAD;
1473	req->fh = newSVsv (fh);	1665	req->sv1 = newSVsv (fh);
1474	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1666	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1475	req->offs = offset;	1667	req->offs = SvVAL64 (offset);
1476	req->size = length;	1668	req->size = length;
1477		1669
1478	REQ_SEND;	1670	REQ_SEND;
1479	}	1671	}
1480		1672
1481	void	1673	void
1482	aio_stat (fh_or_path,callback=&PL_sv_undef)	1674	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1483	SV * fh_or_path
1484	SV * callback
1485	ALIAS:	1675	ALIAS:
1486	aio_stat = REQ_STAT	1676	aio_stat = REQ_STAT
1487	aio_lstat = REQ_LSTAT	1677	aio_lstat = REQ_LSTAT
1488	PPCODE:	1678	PPCODE:
1489	{	1679	{
1490	dREQ;	1680	dREQ;
1491		1681
1492	req->ptr2 = malloc (sizeof (Stat_t));	1682	req->ptr2 = malloc (sizeof (Stat_t));
1493	if (!req->ptr2)	1683	if (!req->ptr2)
1494	{	1684	{
1495	req_free (req);	1685	req_destroy (req);
1496	croak ("out of memory during aio_stat statdata allocation");	1686	croak ("out of memory during aio_stat statdata allocation");
1497	}	1687	}
1498		1688
1499	req->flags |= FLAG_PTR2_FREE;	1689	req->flags |= FLAG_PTR2_FREE;
		1690	req->sv1 = newSVsv (fh_or_path);
1500		1691
1501	if (SvPOK (fh_or_path))	1692	if (SvPOK (fh_or_path))
1502	{	1693	{
1503	req->type = ix;	1694	req->type = ix;
1504	req->sv1 = newSVsv (fh_or_path);
1505	req->ptr1 = SvPVbyte_nolen (fh_or_path);	1695	req->ptr1 = SvPVbyte_nolen (req->sv1);
1506	}	1696	}
1507	else	1697	else
1508	{	1698	{
1509	req->type = REQ_FSTAT;	1699	req->type = REQ_FSTAT;
1510	req->fh = newSVsv (fh_or_path);
1511	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512	}	1701	}
1513		1702
1514	REQ_SEND;	1703	REQ_SEND;
1515	}	1704	}
1516		1705
1517	void	1706	void
		1707	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1708	PPCODE:
		1709	{
		1710	dREQ;
		1711
		1712	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1713	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1714	req->sv1 = newSVsv (fh_or_path);
		1715
		1716	if (SvPOK (fh_or_path))
		1717	{
		1718	req->type = REQ_UTIME;
		1719	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1720	}
		1721	else
		1722	{
		1723	req->type = REQ_FUTIME;
		1724	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1725	}
		1726
		1727	REQ_SEND;
		1728	}
		1729
		1730	void
		1731	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	dREQ;
		1735
		1736	req->sv1 = newSVsv (fh_or_path);
		1737	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1738
		1739	if (SvPOK (fh_or_path))
		1740	{
		1741	req->type = REQ_TRUNCATE;
		1742	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1743	}
		1744	else
		1745	{
		1746	req->type = REQ_FTRUNCATE;
		1747	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1748	}
		1749
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
		1754	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1755	PPCODE:
		1756	{
		1757	dREQ;
		1758
		1759	req->mode = mode;
		1760	req->sv1 = newSVsv (fh_or_path);
		1761
		1762	if (SvPOK (fh_or_path))
		1763	{
		1764	req->type = REQ_CHMOD;
		1765	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1766	}
		1767	else
		1768	{
		1769	req->type = REQ_FCHMOD;
		1770	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1771	}
		1772
		1773	REQ_SEND;
		1774	}
		1775
		1776	void
		1777	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1778	PPCODE:
		1779	{
		1780	dREQ;
		1781
		1782	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1783	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1784	req->sv1 = newSVsv (fh_or_path);
		1785
		1786	if (SvPOK (fh_or_path))
		1787	{
		1788	req->type = REQ_CHOWN;
		1789	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1790	}
		1791	else
		1792	{
		1793	req->type = REQ_FCHOWN;
		1794	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1795	}
		1796
		1797	REQ_SEND;
		1798	}
		1799
		1800	void
1518	aio_unlink (pathname,callback=&PL_sv_undef)	1801	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1519	SV * pathname
1520	SV * callback
1521	ALIAS:	1802	ALIAS:
1522	aio_unlink = REQ_UNLINK	1803	aio_unlink = REQ_UNLINK
1523	aio_rmdir = REQ_RMDIR	1804	aio_rmdir = REQ_RMDIR
1524	aio_readdir = REQ_READDIR	1805	aio_readdir = REQ_READDIR
1525	PPCODE:	1806	PPCODE:
1526	{	1807	{
1527	dREQ;	1808	dREQ;
1528		1809
1529	req->type = ix;	1810	req->type = ix;
1530	req->sv1 = newSVsv (pathname);	1811	req->sv1 = newSVsv (pathname);
1531	req->ptr1 = SvPVbyte_nolen (pathname);	1812	req->ptr1 = SvPVbyte_nolen (req->sv1);
1532		1813
1533	REQ_SEND;	1814	REQ_SEND;
1534	}	1815	}
1535		1816
1536	void	1817	void
		1818	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1819	PPCODE:
		1820	{
		1821	dREQ;
		1822
		1823	req->type = REQ_MKDIR;
		1824	req->sv1 = newSVsv (pathname);
		1825	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1826	req->mode = mode;
		1827
		1828	REQ_SEND;
		1829	}
		1830
		1831	void
1537	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1832	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1538	SV * oldpath
1539	SV * newpath
1540	SV * callback
1541	ALIAS:	1833	ALIAS:
1542	aio_link = REQ_LINK	1834	aio_link = REQ_LINK
1543	aio_symlink = REQ_SYMLINK	1835	aio_symlink = REQ_SYMLINK
1544	aio_rename = REQ_RENAME	1836	aio_rename = REQ_RENAME
1545	PPCODE:	1837	PPCODE:
1546	{	1838	{
1547	dREQ;	1839	dREQ;
1548		1840
1549	req->type = ix;	1841	req->type = ix;
1550	req->fh = newSVsv (oldpath);	1842	req->sv2 = newSVsv (oldpath);
1551	req->ptr2 = SvPVbyte_nolen (req->fh);	1843	req->ptr2 = SvPVbyte_nolen (req->sv2);
1552	req->sv1 = newSVsv (newpath);	1844	req->sv1 = newSVsv (newpath);
1553	req->ptr1 = SvPVbyte_nolen (newpath);	1845	req->ptr1 = SvPVbyte_nolen (req->sv1);
1554		1846
1555	REQ_SEND;	1847	REQ_SEND;
1556	}	1848	}
1557		1849
1558	void	1850	void
1559	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1851	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1560	SV * pathname
1561	SV * callback
1562	UV mode
1563	UV dev
1564	PPCODE:	1852	PPCODE:
1565	{	1853	{
1566	dREQ;	1854	dREQ;
1567		1855
1568	req->type = REQ_MKNOD;	1856	req->type = REQ_MKNOD;
1569	req->sv1 = newSVsv (pathname);	1857	req->sv1 = newSVsv (pathname);
1570	req->ptr1 = SvPVbyte_nolen (pathname);	1858	req->ptr1 = SvPVbyte_nolen (req->sv1);
1571	req->mode = (mode_t)mode;	1859	req->mode = (mode_t)mode;
1572	req->offs = dev;	1860	req->offs = dev;
1573		1861
1574	REQ_SEND;	1862	REQ_SEND;
1575	}	1863	}
1576		1864
1577	void	1865	void
1578	aio_busy (delay,callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback=&PL_sv_undef)
1579	double delay
1580	SV * callback
1581	PPCODE:	1867	PPCODE:
1582	{	1868	{
1583	dREQ;	1869	dREQ;
1584		1870
1585	req->type = REQ_BUSY;	1871	req->type = REQ_BUSY;
1586	req->int1 = delay < 0. ? 0 : delay;	1872	req->nv1 = delay < 0. ? 0. : delay;
1587	req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1588		1873
1589	REQ_SEND;	1874	REQ_SEND;
1590	}	1875	}
1591		1876
1592	void	1877	void
1593	aio_group (callback=&PL_sv_undef)	1878	aio_group (SV *callback=&PL_sv_undef)
1594	SV * callback
1595	PROTOTYPE: ;$	1879	PROTOTYPE: ;$
1596	PPCODE:	1880	PPCODE:
1597	{	1881	{
1598	dREQ;	1882	dREQ;
1599		1883
…		…
1602	req_send (req);	1886	req_send (req);
1603	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1887	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1604	}	1888	}
1605		1889
1606	void	1890	void
1607	aio_nop (callback=&PL_sv_undef)	1891	aio_nop (SV *callback=&PL_sv_undef)
1608	SV * callback	1892	ALIAS:
		1893	aio_nop = REQ_NOP
		1894	aio_sync = REQ_SYNC
1609	PPCODE:	1895	PPCODE:
1610	{	1896	{
1611	dREQ;	1897	dREQ;
1612		1898
1613	req->type = REQ_NOP;	1899	req->type = ix;
1614		1900
1615	REQ_SEND;	1901	REQ_SEND;
1616	}	1902	}
1617		1903
1618	int	1904	int
…		…
1642	PROTOTYPE:	1928	PROTOTYPE:
1643	CODE:	1929	CODE:
1644	while (nreqs)	1930	while (nreqs)
1645	{	1931	{
1646	poll_wait ();	1932	poll_wait ();
1647	poll_cb (0);	1933	poll_cb ();
1648	}	1934	}
1649		1935
1650	void	1936	int
1651	poll()	1937	poll()
1652	PROTOTYPE:	1938	PROTOTYPE:
1653	CODE:	1939	CODE:
1654	if (nreqs)
1655	{
1656	poll_wait ();	1940	poll_wait ();
1657	poll_cb (0);	1941	RETVAL = poll_cb ();
1658	}	1942	OUTPUT:
		1943	RETVAL
1659		1944
1660	int	1945	int
1661	poll_fileno()	1946	poll_fileno()
1662	PROTOTYPE:	1947	PROTOTYPE:
1663	CODE:	1948	CODE:
…		…
1675		1960
1676	void	1961	void
1677	poll_wait()	1962	poll_wait()
1678	PROTOTYPE:	1963	PROTOTYPE:
1679	CODE:	1964	CODE:
1680	if (nreqs)
1681	poll_wait ();	1965	poll_wait ();
		1966
		1967	void
		1968	setsig (int signum = SIGIO)
		1969	PROTOTYPE: ;$
		1970	CODE:
		1971	{
		1972	if (block_sig_level)
		1973	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1974
		1975	X_LOCK (reslock);
		1976	main_tid = pthread_self ();
		1977	main_sig = signum;
		1978	X_UNLOCK (reslock);
		1979
		1980	if (main_sig && npending)
		1981	pthread_kill (main_tid, main_sig);
		1982	}
		1983
		1984	void
		1985	aio_block (SV *cb)
		1986	PROTOTYPE: &
		1987	PPCODE:
		1988	{
		1989	int count;
		1990
		1991	block_sig ();
		1992	PUSHMARK (SP);
		1993	PUTBACK;
		1994	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1995	unblock_sig ();
		1996
		1997	if (SvTRUE (ERRSV))
		1998	croak (0);
		1999
		2000	XSRETURN (count);
		2001	}
1682		2002
1683	int	2003	int
1684	nreqs()	2004	nreqs()
1685	PROTOTYPE:	2005	PROTOTYPE:
1686	CODE:	2006	CODE:
…		…
1706		2026
1707	int	2027	int
1708	nthreads()	2028	nthreads()
1709	PROTOTYPE:	2029	PROTOTYPE:
1710	CODE:	2030	CODE:
1711	if (WORDACCESS_UNSAFE) LOCK (wrklock);	2031	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1712	RETVAL = started;	2032	RETVAL = started;
1713	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	2033	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1714	OUTPUT:	2034	OUTPUT:
1715	RETVAL	2035	RETVAL
1716		2036
1717	PROTOTYPES: DISABLE	2037	PROTOTYPES: DISABLE
1718		2038
…		…
1736	PPCODE:	2056	PPCODE:
1737	{	2057	{
1738	int i;	2058	int i;
1739	aio_req req;	2059	aio_req req;
1740		2060
		2061	if (main_sig && !block_sig_level)
		2062	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2063
1741	if (grp->int1 == 2)	2064	if (grp->int1 == 2)
1742	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2065	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743		2066
1744	for (i = 1; i < items; ++i )	2067	for (i = 1; i < items; ++i )
1745	{	2068	{

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