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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.91 by root, Wed Nov 8 01:57:43 2006 UTC vs.
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 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
84	#define dBUF \	102	#define dBUF \
85	char *aio_buf; \	103	char *aio_buf; \
86	LOCK (wrklock); \	104	X_LOCK (wrklock); \
87	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	105	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88	UNLOCK (wrklock); \	106	X_UNLOCK (wrklock); \
89	if (!aio_buf) \	107	if (!aio_buf) \
90	return -1;	108	return -1;
91		109
92	typedef SV SV8; /* byte-sv, used for argument-checking */	110	typedef SV SV8; /* byte-sv, used for argument-checking */
93		111
94	enum {	112	enum {
95	REQ_QUIT,	113	REQ_QUIT,
96	REQ_OPEN, REQ_CLOSE,	114	REQ_OPEN, REQ_CLOSE,
97	REQ_READ, REQ_WRITE, REQ_READAHEAD,	115	REQ_READ, REQ_WRITE,
98	REQ_SENDFILE,	116	REQ_READAHEAD, REQ_SENDFILE,
99	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	117	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		118	REQ_TRUNCATE, REQ_FTRUNCATE,
		119	REQ_UTIME, REQ_FUTIME,
		120	REQ_CHMOD, REQ_FCHMOD,
		121	REQ_CHOWN, REQ_FCHOWN,
100	REQ_FSYNC, REQ_FDATASYNC,	122	REQ_FSYNC, REQ_FDATASYNC,
101	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	123	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
102	REQ_MKNOD, REQ_READDIR,	124	REQ_MKNOD, REQ_READDIR,
103	REQ_LINK, REQ_SYMLINK, REQ_READLINK,	125	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
104	REQ_GROUP, REQ_NOP,	126	REQ_GROUP, REQ_NOP,
105	REQ_BUSY,	127	REQ_BUSY,
106	};	128	};
…		…
110		132
111	typedef struct aio_cb	133	typedef struct aio_cb
112	{	134	{
113	struct aio_cb *volatile next;	135	struct aio_cb *volatile next;
114		136
115	SV *callback, *fh;	137	SV *callback;
116	SV *sv1, *sv2;	138	SV *sv1, *sv2;
117	void *ptr1, *ptr2;	139	void *ptr1, *ptr2;
118	off_t offs;	140	off_t offs;
119	size_t size;	141	size_t size;
120	ssize_t result;	142	ssize_t result;
		143	double nv1, nv2;
121		144
122	STRLEN stroffset;	145	STRLEN stroffset;
123	int type;	146	int type;
124	int int1, int2;	147	int int1, int2, int3;
125	int errorno;	148	int errorno;
126	mode_t mode; /* open */	149	mode_t mode; /* open */
127		150
128	unsigned char flags;	151	unsigned char flags;
129	unsigned char pri;	152	unsigned char pri;
…		…
132	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	155	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
133	} aio_cb;	156	} aio_cb;
134		157
135	enum {	158	enum {
136	FLAG_CANCELLED = 0x01, /* request was cancelled */	159	FLAG_CANCELLED = 0x01, /* request was cancelled */
137	FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */	160	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
138	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */	161	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
139	};	162	};
140		163
141	typedef aio_cb *aio_req;	164	typedef aio_cb *aio_req;
142	typedef aio_cb *aio_req_ornot;	165	typedef aio_cb *aio_req_ornot;
…		…
160	{	183	{
161	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS	184	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
162	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	185	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
163	}	186	}
164		187
		188	static thread_t main_tid;
		189	static int main_sig;
		190	static int block_sig_level;
		191
		192	void block_sig ()
		193	{
		194	sigset_t ss;
		195
		196	if (block_sig_level++)
		197	return;
		198
		199	if (!main_sig)
		200	return;
		201
		202	sigemptyset (&ss);
		203	sigaddset (&ss, main_sig);
		204	pthread_sigmask (SIG_BLOCK, &ss, 0);
		205	}
		206
		207	void unblock_sig ()
		208	{
		209	sigset_t ss;
		210
		211	if (--block_sig_level)
		212	return;
		213
		214	if (!main_sig)
		215	return;
		216
		217	sigemptyset (&ss);
		218	sigaddset (&ss, main_sig);
		219	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		220	}
		221
165	static int next_pri = DEFAULT_PRI + PRI_BIAS;	222	static int next_pri = DEFAULT_PRI + PRI_BIAS;
166		223
167	static unsigned int started, idle, wanted;	224	static unsigned int started, idle, wanted;
168		225
169	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
170	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
171	#else
172	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
173	#endif
174
175	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
176	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
177
178	/* worker threads management */	226	/* worker threads management */
179	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	227	static mutex_t wrklock = X_MUTEX_INIT;
180		228
181	typedef struct worker {	229	typedef struct worker {
182	/* locked by wrklock */	230	/* locked by wrklock */
183	struct worker *prev, *next;	231	struct worker *prev, *next;
184		232
185	pthread_t tid;	233	thread_t tid;
186		234
187	/* locked by reslock, reqlock or wrklock */	235	/* locked by reslock, reqlock or wrklock */
188	aio_req req; /* currently processed request */	236	aio_req req; /* currently processed request */
189	void *dbuf;	237	void *dbuf;
190	DIR *dirp;	238	DIR *dirp;
…		…
216	}	264	}
217		265
218	static volatile unsigned int nreqs, nready, npending;	266	static volatile unsigned int nreqs, nready, npending;
219	static volatile unsigned int max_idle = 4;	267	static volatile unsigned int max_idle = 4;
220	static volatile unsigned int max_outstanding = 0xffffffff;	268	static volatile unsigned int max_outstanding = 0xffffffff;
221	static int respipe [2];	269	static int respipe_osf [2], respipe [2] = { -1, -1 };
222		270
223	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	271	static mutex_t reslock = X_MUTEX_INIT;
224	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	272	static mutex_t reqlock = X_MUTEX_INIT;
225	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	273	static cond_t reqwait = X_COND_INIT;
226		274
227	#if WORDACCESS_UNSAFE	275	#if WORDACCESS_UNSAFE
228		276
229	static unsigned int get_nready ()	277	static unsigned int get_nready ()
230	{	278	{
231	unsigned int retval;	279	unsigned int retval;
232		280
233	LOCK (reqlock);	281	X_LOCK (reqlock);
234	retval = nready;	282	retval = nready;
235	UNLOCK (reqlock);	283	X_UNLOCK (reqlock);
236		284
237	return retval;	285	return retval;
238	}	286	}
239		287
240	static unsigned int get_npending ()	288	static unsigned int get_npending ()
241	{	289	{
242	unsigned int retval;	290	unsigned int retval;
243		291
244	LOCK (reslock);	292	X_LOCK (reslock);
245	retval = npending;	293	retval = npending;
246	UNLOCK (reslock);	294	X_UNLOCK (reslock);
247		295
248	return retval;	296	return retval;
249	}	297	}
250		298
251	static unsigned int get_nthreads ()	299	static unsigned int get_nthreads ()
252	{	300	{
253	unsigned int retval;	301	unsigned int retval;
254		302
255	LOCK (wrklock);	303	X_LOCK (wrklock);
256	retval = started;	304	retval = started;
257	UNLOCK (wrklock);	305	X_UNLOCK (wrklock);
258		306
259	return retval;	307	return retval;
260	}	308	}
261		309
262	#else	310	#else
…		…
320		368
321	abort ();	369	abort ();
322	}	370	}
323		371
324	static int poll_cb ();	372	static int poll_cb ();
325	static void req_invoke (aio_req req);	373	static int req_invoke (aio_req req);
326	static void req_free (aio_req req);	374	static void req_destroy (aio_req req);
327	static void req_cancel (aio_req req);	375	static void req_cancel (aio_req req);
328		376
329	/* must be called at most once */	377	/* must be called at most once */
330	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
331	{	379	{
…		…
350	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
351	}	399	}
352		400
353	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
354	{	402	{
		403	block_sig ();
		404
355	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
356	{	406	{
357	int old_len = grp->size;	407	int old_len = grp->size;
358		408
359	if (grp->sv2 && SvOK (grp->sv2))	409	if (grp->sv2 && SvOK (grp->sv2))
…		…
377	SvREFCNT_dec (grp->sv2);	427	SvREFCNT_dec (grp->sv2);
378	grp->sv2 = 0;	428	grp->sv2 = 0;
379	break;	429	break;
380	}	430	}
381	}	431	}
		432
		433	unblock_sig ();
382	}	434	}
383		435
384	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
385	{	437	{
386	--grp->size;	438	--grp->size;
…		…
389	aio_grp_feed (grp);	441	aio_grp_feed (grp);
390		442
391	/* finish, if done */	443	/* finish, if done */
392	if (!grp->size && grp->int1)	444	if (!grp->size && grp->int1)
393	{	445	{
		446	block_sig ();
		447
394	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
395	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
396	}	457	}
397	}	458	}
398		459
399	static void req_invoke (aio_req req)	460	static int req_invoke (aio_req req)
400	{	461	{
401	dSP;	462	dSP;
402		463
403	if (req->flags & FLAG_SV1_RO_OFF)	464	if (req->flags & FLAG_SV2_RO_OFF)
404	SvREADONLY_off (req->sv1);	465	SvREADONLY_off (req->sv2);
405		466
406	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
407	{	468	{
408	ENTER;	469	ENTER;
409	SAVETMPS;	470	SAVETMPS;
…		…
447	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
448	PUTBACK;	509	PUTBACK;
449	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
450	SPAGAIN;	511	SPAGAIN;
451		512
452	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
453
454	PUSHMARK (SP);	514	PUSHMARK (SP);
455	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
456	}	516	}
457	break;	517	break;
458		518
459	case REQ_GROUP:	519	case REQ_GROUP:
460	req->int1 = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
…		…
475	break;	535	break;
476		536
477	case REQ_READLINK:	537	case REQ_READLINK:
478	if (req->result > 0)	538	if (req->result > 0)
479	{	539	{
480	SvCUR_set (req->sv1, req->result);	540	SvCUR_set (req->sv2, req->result);
481	*SvEND (req->sv1) = 0;	541	*SvEND (req->sv2) = 0;
482	PUSHs (req->sv1);	542	PUSHs (req->sv2);
483	}	543	}
484	break;	544	break;
485		545
486	case REQ_STAT:	546	case REQ_STAT:
487	case REQ_LSTAT:	547	case REQ_LSTAT:
…		…
491	PL_statcache = *(Stat_t *)(req->ptr2);	551	PL_statcache = *(Stat_t *)(req->ptr2);
492	PUSHs (sv_2mortal (newSViv (req->result)));	552	PUSHs (sv_2mortal (newSViv (req->result)));
493	break;	553	break;
494		554
495	case REQ_READ:	555	case REQ_READ:
496	SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));	556	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
497	*SvEND (req->sv1) = 0;	557	*SvEND (req->sv2) = 0;
498	PUSHs (sv_2mortal (newSViv (req->result)));	558	PUSHs (sv_2mortal (newSViv (req->result)));
499	break;	559	break;
500		560
501	default:	561	default:
502	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
…		…
525	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
526		586
527	aio_grp_dec (grp);	587	aio_grp_dec (grp);
528	}	588	}
529		589
530	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
531	{
532	req_free (req);
533	croak (0);
534	}
535	}	591	}
536		592
537	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
538	{	594	{
539	if (req->self)	595	if (req->self)
540	{	596	{
541	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
542	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
543	}	599	}
544		600
545	SvREFCNT_dec (req->fh);
546	SvREFCNT_dec (req->sv1);	601	SvREFCNT_dec (req->sv1);
547	SvREFCNT_dec (req->sv2);	602	SvREFCNT_dec (req->sv2);
548	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
549		604
550	if (req->flags & FLAG_PTR2_FREE)	605	if (req->flags & FLAG_PTR2_FREE)
…		…
572	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
573		628
574	req_cancel_subs (req);	629	req_cancel_subs (req);
575	}	630	}
576		631
577	static void *aio_proc(void *arg);	632	#ifdef USE_SOCKETS_AS_HANDLES
		633	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		634	#else
		635	# define TO_SOCKET(x) (x)
		636	#endif
		637
		638	static void
		639	create_respipe ()
		640	{
		641	int old_readfd = respipe [0];
		642
		643	if (respipe [1] >= 0)
		644	respipe_close (TO_SOCKET (respipe [1]));
		645
		646	#ifdef _WIN32
		647	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		648	#else
		649	if (pipe (respipe))
		650	#endif
		651	croak ("unable to initialize result pipe");
		652
		653	if (old_readfd >= 0)
		654	{
		655	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		656	croak ("unable to initialize result pipe(2)");
		657
		658	respipe_close (respipe [0]);
		659	respipe [0] = old_readfd;
		660	}
		661
		662	#ifdef _WIN32
		663	int arg = 1;
		664	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		665	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		666	#else
		667	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		668	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		669	#endif
		670	croak ("unable to initialize result pipe(3)");
		671
		672	respipe_osf [0] = TO_SOCKET (respipe [0]);
		673	respipe_osf [1] = TO_SOCKET (respipe [1]);
		674	}
		675
		676	X_THREAD_PROC (aio_proc);
578		677
579	static void start_thread (void)	678	static void start_thread (void)
580	{	679	{
581	sigset_t fullsigset, oldsigset;
582	pthread_attr_t attr;
583
584	worker *wrk = calloc (1, sizeof (worker));	680	worker *wrk = calloc (1, sizeof (worker));
585		681
586	if (!wrk)	682	if (!wrk)
587	croak ("unable to allocate worker thread data");	683	croak ("unable to allocate worker thread data");
588		684
589	pthread_attr_init (&attr);
590	pthread_attr_setstacksize (&attr, STACKSIZE);
591	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592	#ifdef PTHREAD_SCOPE_PROCESS
593	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594	#endif
595
596	sigfillset (&fullsigset);
597
598	LOCK (wrklock);	685	X_LOCK (wrklock);
599	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600		686
601	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	687	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
602	{	688	{
603	wrk->prev = &wrk_first;	689	wrk->prev = &wrk_first;
604	wrk->next = wrk_first.next;	690	wrk->next = wrk_first.next;
605	wrk_first.next->prev = wrk;	691	wrk_first.next->prev = wrk;
606	wrk_first.next = wrk;	692	wrk_first.next = wrk;
607	++started;	693	++started;
608	}	694	}
609	else	695	else
610	free (wrk);	696	free (wrk);
611		697
612	sigprocmask (SIG_SETMASK, &oldsigset, 0);
613	UNLOCK (wrklock);	698	X_UNLOCK (wrklock);
614	}	699	}
615		700
616	static void maybe_start_thread ()	701	static void maybe_start_thread ()
617	{	702	{
618	if (get_nthreads () >= wanted)	703	if (get_nthreads () >= wanted)
…		…
625	start_thread ();	710	start_thread ();
626	}	711	}
627		712
628	static void req_send (aio_req req)	713	static void req_send (aio_req req)
629	{	714	{
		715	block_sig ();
		716
630	++nreqs;	717	++nreqs;
631		718
632	LOCK (reqlock);	719	X_LOCK (reqlock);
633	++nready;	720	++nready;
634	reqq_push (&req_queue, req);	721	reqq_push (&req_queue, req);
635	pthread_cond_signal (&reqwait);	722	X_COND_SIGNAL (reqwait);
636	UNLOCK (reqlock);	723	X_UNLOCK (reqlock);
		724
		725	unblock_sig ();
637		726
638	maybe_start_thread ();	727	maybe_start_thread ();
639	}	728	}
640		729
641	static void end_thread (void)	730	static void end_thread (void)
…		…
645	Newz (0, req, 1, aio_cb);	734	Newz (0, req, 1, aio_cb);
646		735
647	req->type = REQ_QUIT;	736	req->type = REQ_QUIT;
648	req->pri = PRI_MAX + PRI_BIAS;	737	req->pri = PRI_MAX + PRI_BIAS;
649		738
650	LOCK (reqlock);	739	X_LOCK (reqlock);
651	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
652	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
653	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
654		743
655	LOCK (wrklock);	744	X_LOCK (wrklock);
656	--started;	745	--started;
657	UNLOCK (wrklock);	746	X_UNLOCK (wrklock);
658	}	747	}
659		748
660	static void set_max_idle (int nthreads)	749	static void set_max_idle (int nthreads)
661	{	750	{
662	if (WORDACCESS_UNSAFE) LOCK (reqlock);	751	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
663	max_idle = nthreads <= 0 ? 1 : nthreads;	752	max_idle = nthreads <= 0 ? 1 : nthreads;
664	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	753	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
665	}	754	}
666		755
667	static void min_parallel (int nthreads)	756	static void min_parallel (int nthreads)
668	{	757	{
669	if (wanted < nthreads)	758	if (wanted < nthreads)
…		…
684	fd_set rfd;	773	fd_set rfd;
685		774
686	while (nreqs)	775	while (nreqs)
687	{	776	{
688	int size;	777	int size;
689	if (WORDACCESS_UNSAFE) LOCK (reslock);	778	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
690	size = res_queue.size;	779	size = res_queue.size;
691	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	780	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
692		781
693	if (size)	782	if (size)
694	return;	783	return;
695		784
696	maybe_start_thread ();	785	maybe_start_thread ();
697		786
698	FD_ZERO(&rfd);	787	FD_ZERO (&rfd);
699	FD_SET(respipe [0], &rfd);	788	FD_SET (respipe [0], &rfd);
700		789
701	select (respipe [0] + 1, &rfd, 0, 0, 0);	790	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
702	}	791	}
703	}	792	}
704		793
705	static int poll_cb ()	794	static int poll_cb ()
706	{	795	{
…		…
712	aio_req req;	801	aio_req req;
713		802
714	if (max_poll_time)	803	if (max_poll_time)
715	gettimeofday (&tv_start, 0);	804	gettimeofday (&tv_start, 0);
716		805
		806	block_sig ();
		807
717	for (;;)	808	for (;;)
718	{	809	{
719	for (;;)	810	for (;;)
720	{	811	{
721	maybe_start_thread ();	812	maybe_start_thread ();
722		813
723	LOCK (reslock);	814	X_LOCK (reslock);
724	req = reqq_shift (&res_queue);	815	req = reqq_shift (&res_queue);
725		816
726	if (req)	817	if (req)
727	{	818	{
728	--npending;	819	--npending;
729		820
730	if (!res_queue.size)	821	if (!res_queue.size)
731	{	822	{
732	/* read any signals sent by the worker threads */	823	/* read any signals sent by the worker threads */
733	char buf [32];	824	char buf [4];
734	while (read (respipe [0], buf, 32) == 32)	825	while (respipe_read (respipe [0], buf, 4) == 4)
735	;	826	;
736	}	827	}
737	}	828	}
738		829
739	UNLOCK (reslock);	830	X_UNLOCK (reslock);
740		831
741	if (!req)	832	if (!req)
742	break;	833	break;
743		834
744	--nreqs;	835	--nreqs;
…		…
748	req->int1 = 1; /* mark request as delayed */	839	req->int1 = 1; /* mark request as delayed */
749	continue;	840	continue;
750	}	841	}
751	else	842	else
752	{	843	{
753	req_invoke (req);	844	if (!req_invoke (req))
		845	{
		846	req_destroy (req);
		847	unblock_sig ();
		848	croak (0);
		849	}
754		850
755	count++;	851	count++;
756	}	852	}
757		853
758	req_free (req);	854	req_destroy (req);
759		855
760	if (maxreqs && !--maxreqs)	856	if (maxreqs && !--maxreqs)
761	break;	857	break;
762		858
763	if (max_poll_time)	859	if (max_poll_time)
…		…
775	poll_wait ();	871	poll_wait ();
776		872
777	++maxreqs;	873	++maxreqs;
778	}	874	}
779		875
		876	unblock_sig ();
780	return count;	877	return count;
781	}
782
783	static void create_pipe ()
784	{
785	if (pipe (respipe))
786	croak ("unable to initialize result pipe");
787
788	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
789	croak ("cannot set result pipe to nonblocking mode");
790
791	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792	croak ("cannot set result pipe to nonblocking mode");
793	}	878	}
794		879
795	/*****************************************************************************/	880	/*****************************************************************************/
796	/* work around various missing functions */	881	/* work around various missing functions */
797		882
…		…
802	/*	887	/*
803	* make our pread/pwrite safe against themselves, but not against	888	* make our pread/pwrite safe against themselves, but not against
804	* normal read/write by using a mutex. slows down execution a lot,	889	* normal read/write by using a mutex. slows down execution a lot,
805	* but that's your problem, not mine.	890	* but that's your problem, not mine.
806	*/	891	*/
807	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	892	static mutex_t preadwritelock = X_MUTEX_INIT;
808		893
809	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	894	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810	{	895	{
811	ssize_t res;	896	ssize_t res;
812	off_t ooffset;	897	off_t ooffset;
813		898
814	LOCK (preadwritelock);	899	X_LOCK (preadwritelock);
815	ooffset = lseek (fd, 0, SEEK_CUR);	900	ooffset = lseek (fd, 0, SEEK_CUR);
816	lseek (fd, offset, SEEK_SET);	901	lseek (fd, offset, SEEK_SET);
817	res = read (fd, buf, count);	902	res = read (fd, buf, count);
818	lseek (fd, ooffset, SEEK_SET);	903	lseek (fd, ooffset, SEEK_SET);
819	UNLOCK (preadwritelock);	904	X_UNLOCK (preadwritelock);
820		905
821	return res;	906	return res;
822	}	907	}
823		908
824	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	909	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
825	{	910	{
826	ssize_t res;	911	ssize_t res;
827	off_t ooffset;	912	off_t ooffset;
828		913
829	LOCK (preadwritelock);	914	X_LOCK (preadwritelock);
830	ooffset = lseek (fd, 0, SEEK_CUR);	915	ooffset = lseek (fd, 0, SEEK_CUR);
831	lseek (fd, offset, SEEK_SET);	916	lseek (fd, offset, SEEK_SET);
832	res = write (fd, buf, count);	917	res = write (fd, buf, count);
833	lseek (fd, offset, SEEK_SET);	918	lseek (fd, offset, SEEK_SET);
834	UNLOCK (preadwritelock);	919	X_UNLOCK (preadwritelock);
835		920
836	return res;	921	return res;
837	}	922	}
		923	#endif
		924
		925	#ifndef HAVE_FUTIMES
		926
		927	# define utimes(path,times) aio_utimes (path, times)
		928	# define futimes(fd,times) aio_futimes (fd, times)
		929
		930	int aio_utimes (const char *filename, const struct timeval times[2])
		931	{
		932	if (times)
		933	{
		934	struct utimbuf buf;
		935
		936	buf.actime = times[0].tv_sec;
		937	buf.modtime = times[1].tv_sec;
		938
		939	return utime (filename, &buf);
		940	}
		941	else
		942	return utime (filename, 0);
		943	}
		944
		945	int aio_futimes (int fd, const struct timeval tv[2])
		946	{
		947	errno = ENOSYS;
		948	return -1;
		949	}
		950
838	#endif	951	#endif
839		952
840	#if !HAVE_FDATASYNC	953	#if !HAVE_FDATASYNC
841	# define fdatasync fsync	954	# define fdatasync fsync
842	#endif	955	#endif
…		…
844	#if !HAVE_READAHEAD	957	#if !HAVE_READAHEAD
845	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	958	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846		959
847	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	960	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
848	{	961	{
		962	size_t todo = count;
849	dBUF;	963	dBUF;
850		964
851	while (count > 0)	965	while (todo > 0)
852	{	966	{
853	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	967	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
854		968
855	pread (fd, aio_buf, len, offset);	969	pread (fd, aio_buf, len, offset);
856	offset += len;	970	offset += len;
857	count -= len;	971	todo -= len;
858	}	972	}
859		973
860	errno = 0;	974	errno = 0;
		975	return count;
861	}	976	}
862		977
863	#endif	978	#endif
864		979
865	#if !HAVE_READDIR_R	980	#if !HAVE_READDIR_R
866	# define readdir_r aio_readdir_r	981	# define readdir_r aio_readdir_r
867		982
868	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	983	static mutex_t readdirlock = X_MUTEX_INIT;
869		984
870	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	985	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
871	{	986	{
872	struct dirent *e;	987	X_DIRENT *e;
873	int errorno;	988	int errorno;
874		989
875	LOCK (readdirlock);	990	X_LOCK (readdirlock);
876		991
877	e = readdir (dirp);	992	e = readdir (dirp);
878	errorno = errno;	993	errorno = errno;
879		994
880	if (e)	995	if (e)
…		…
883	strcpy (ent->d_name, e->d_name);	998	strcpy (ent->d_name, e->d_name);
884	}	999	}
885	else	1000	else
886	*res = 0;	1001	*res = 0;
887		1002
888	UNLOCK (readdirlock);	1003	X_UNLOCK (readdirlock);
889		1004
890	errno = errorno;	1005	errno = errorno;
891	return e ? 0 : -1;	1006	return e ? 0 : -1;
892	}	1007	}
893	#endif	1008	#endif
…		…
989	static void scandir_ (aio_req req, worker *self)	1104	static void scandir_ (aio_req req, worker *self)
990	{	1105	{
991	DIR *dirp;	1106	DIR *dirp;
992	union	1107	union
993	{	1108	{
994	struct dirent d;	1109	X_DIRENT d;
995	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1110	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
996	} *u;	1111	} *u;
997	struct dirent *entp;	1112	X_DIRENT *entp;
998	char *name, *names;	1113	char *name, *names;
999	int memlen = 4096;	1114	int memlen = 4096;
1000	int memofs = 0;	1115	int memofs = 0;
1001	int res = 0;	1116	int res = 0;
1002	int errorno;
1003		1117
1004	LOCK (wrklock);	1118	X_LOCK (wrklock);
1005	self->dirp = dirp = opendir (req->ptr1);	1119	self->dirp = dirp = opendir (req->ptr1);
1006	self->dbuf = u = malloc (sizeof (*u));	1120	self->dbuf = u = malloc (sizeof (*u));
1007	req->flags |= FLAG_PTR2_FREE;	1121	req->flags |= FLAG_PTR2_FREE;
1008	req->ptr2 = names = malloc (memlen);	1122	req->ptr2 = names = malloc (memlen);
1009	UNLOCK (wrklock);	1123	X_UNLOCK (wrklock);
1010		1124
1011	if (dirp && u && names)	1125	if (dirp && u && names)
1012	for (;;)	1126	for (;;)
1013	{	1127	{
1014	errno = 0;	1128	errno = 0;
…		…
1026	res++;	1140	res++;
1027		1141
1028	while (memofs + len > memlen)	1142	while (memofs + len > memlen)
1029	{	1143	{
1030	memlen *= 2;	1144	memlen *= 2;
1031	LOCK (wrklock);	1145	X_LOCK (wrklock);
1032	req->ptr2 = names = realloc (names, memlen);	1146	req->ptr2 = names = realloc (names, memlen);
1033	UNLOCK (wrklock);	1147	X_UNLOCK (wrklock);
1034		1148
1035	if (!names)	1149	if (!names)
1036	break;	1150	break;
1037	}	1151	}
1038		1152
…		…
1047	req->result = res;	1161	req->result = res;
1048	}	1162	}
1049		1163
1050	/*****************************************************************************/	1164	/*****************************************************************************/
1051		1165
1052	static void *aio_proc (void *thr_arg)	1166	X_THREAD_PROC (aio_proc)
1053	{	1167	{
		1168	{//D
1054	aio_req req;	1169	aio_req req;
1055	struct timespec ts;	1170	struct timespec ts;
1056	worker *self = (worker *)thr_arg;	1171	worker *self = (worker *)thr_arg;
1057		1172
1058	/* try to distribute timeouts somewhat evenly */	1173	/* try to distribute timeouts somewhat randomly */
1059	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1174	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1060	* (1000000000UL / 1024UL);
1061		1175
1062	for (;;)	1176	for (;;)
1063	{	1177	{
1064	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1178	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065		1179
1066	LOCK (reqlock);	1180	X_LOCK (reqlock);
1067		1181
1068	for (;;)	1182	for (;;)
1069	{	1183	{
1070	self->req = req = reqq_shift (&req_queue);	1184	self->req = req = reqq_shift (&req_queue);
1071		1185
1072	if (req)	1186	if (req)
1073	break;	1187	break;
1074		1188
1075	++idle;	1189	++idle;
1076		1190
1077	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1191	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1078	== ETIMEDOUT)	1192	== ETIMEDOUT)
1079	{	1193	{
1080	if (idle > max_idle)	1194	if (idle > max_idle)
1081	{	1195	{
1082	--idle;	1196	--idle;
1083	UNLOCK (reqlock);	1197	X_UNLOCK (reqlock);
1084	LOCK (wrklock);	1198	X_LOCK (wrklock);
1085	--started;	1199	--started;
1086	UNLOCK (wrklock);	1200	X_UNLOCK (wrklock);
1087	goto quit;	1201	goto quit;
1088	}	1202	}
1089		1203
1090	/* we are allowed to idle, so do so without any timeout */	1204	/* we are allowed to idle, so do so without any timeout */
1091	pthread_cond_wait (&reqwait, &reqlock);	1205	X_COND_WAIT (reqwait, reqlock);
1092	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1206	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093	}	1207	}
1094		1208
1095	--idle;	1209	--idle;
1096	}	1210	}
1097		1211
1098	--nready;	1212	--nready;
1099		1213
1100	UNLOCK (reqlock);	1214	X_UNLOCK (reqlock);
1101		1215
1102	errno = 0; /* strictly unnecessary */	1216	errno = 0; /* strictly unnecessary */
1103		1217
1104	if (!(req->flags & FLAG_CANCELLED))	1218	if (!(req->flags & FLAG_CANCELLED))
1105	switch (req->type)	1219	switch (req->type)
1106	{	1220	{
1107	case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;	1221	case REQ_READ: req->result = req->offs >= 0
1108	case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;	1222	? pread (req->int1, req->ptr1, req->size, req->offs)
		1223	: read (req->int1, req->ptr1, req->size); break;
		1224	case REQ_WRITE: req->result = req->offs >= 0
		1225	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1226	: write (req->int1, req->ptr1, req->size); break;
1109		1227
1110	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	1228	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;	1229	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112		1230
1113	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;	1231	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;	1232	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;	1233	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
		1234
		1235	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1236	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1237	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1238	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1239	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1240	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1116		1241
1117	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;	1242	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118	case REQ_CLOSE: req->result = close (req->int1); break;	1243	case REQ_CLOSE: req->result = close (req->int1); break;
1119	case REQ_UNLINK: req->result = unlink (req->ptr1); break;	1244	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;	1245	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1246	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1121	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;	1247	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;	1248	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;	1249	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;	1250	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;	1251	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
…		…
1127	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;	1253	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128	case REQ_FSYNC: req->result = fsync (req->int1); break;	1254	case REQ_FSYNC: req->result = fsync (req->int1); break;
1129	case REQ_READDIR: scandir_ (req, self); break;	1255	case REQ_READDIR: scandir_ (req, self); break;
1130		1256
1131	case REQ_BUSY:	1257	case REQ_BUSY:
		1258	#ifdef _WIN32
		1259	Sleep (req->nv1 * 1000.);
		1260	#else
1132	{	1261	{
1133	struct timeval tv;	1262	struct timeval tv;
1134		1263
1135	tv.tv_sec = req->int1;	1264	tv.tv_sec = req->nv1;
1136	tv.tv_usec = req->int2;	1265	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1137		1266
1138	req->result = select (0, 0, 0, 0, &tv);	1267	req->result = select (0, 0, 0, 0, &tv);
		1268	}
		1269	#endif
		1270	break;
		1271
		1272	case REQ_UTIME:
		1273	case REQ_FUTIME:
		1274	{
		1275	struct timeval tv[2];
		1276	struct timeval *times;
		1277
		1278	if (req->nv1 != -1. || req->nv2 != -1.)
		1279	{
		1280	tv[0].tv_sec = req->nv1;
		1281	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1282	tv[1].tv_sec = req->nv2;
		1283	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1284
		1285	times = tv;
		1286	}
		1287	else
		1288	times = 0;
		1289
		1290
		1291	req->result = req->type == REQ_FUTIME
		1292	? futimes (req->int1, times)
		1293	: utimes (req->ptr1, times);
1139	}	1294	}
1140		1295
1141	case REQ_GROUP:	1296	case REQ_GROUP:
1142	case REQ_NOP:	1297	case REQ_NOP:
1143	break;	1298	break;
1144		1299
1145	case REQ_QUIT:	1300	case REQ_QUIT:
1146	goto quit;	1301	goto quit;
1147		1302
1148	default:	1303	default:
1149	req->result = ENOSYS;	1304	req->result = -1;
1150	break;	1305	break;
1151	}	1306	}
1152		1307
1153	req->errorno = errno;	1308	req->errorno = errno;
1154		1309
1155	LOCK (reslock);	1310	X_LOCK (reslock);
1156		1311
1157	++npending;	1312	++npending;
1158		1313
1159	if (!reqq_push (&res_queue, req))	1314	if (!reqq_push (&res_queue, req))
		1315	{
1160	/* write a dummy byte to the pipe so fh becomes ready */	1316	/* write a dummy byte to the pipe so fh becomes ready */
1161	write (respipe [1], &respipe, 1);	1317	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1318
		1319	/* optionally signal the main thread asynchronously */
		1320	if (main_sig)
		1321	pthread_kill (main_tid, main_sig);
		1322	}
1162		1323
1163	self->req = 0;	1324	self->req = 0;
1164	worker_clear (self);	1325	worker_clear (self);
1165		1326
1166	UNLOCK (reslock);	1327	X_UNLOCK (reslock);
1167	}	1328	}
1168		1329
1169	quit:	1330	quit:
1170	LOCK (wrklock);	1331	X_LOCK (wrklock);
1171	worker_free (self);	1332	worker_free (self);
1172	UNLOCK (wrklock);	1333	X_UNLOCK (wrklock);
1173		1334
1174	return 0;	1335	return 0;
		1336	}//D
1175	}	1337	}
1176		1338
1177	/*****************************************************************************/	1339	/*****************************************************************************/
1178		1340
1179	static void atfork_prepare (void)	1341	static void atfork_prepare (void)
1180	{	1342	{
1181	LOCK (wrklock);	1343	X_LOCK (wrklock);
1182	LOCK (reqlock);	1344	X_LOCK (reqlock);
1183	LOCK (reslock);	1345	X_LOCK (reslock);
1184	#if !HAVE_PREADWRITE	1346	#if !HAVE_PREADWRITE
1185	LOCK (preadwritelock);	1347	X_LOCK (preadwritelock);
1186	#endif	1348	#endif
1187	#if !HAVE_READDIR_R	1349	#if !HAVE_READDIR_R
1188	LOCK (readdirlock);	1350	X_LOCK (readdirlock);
1189	#endif	1351	#endif
1190	}	1352	}
1191		1353
1192	static void atfork_parent (void)	1354	static void atfork_parent (void)
1193	{	1355	{
1194	#if !HAVE_READDIR_R	1356	#if !HAVE_READDIR_R
1195	UNLOCK (readdirlock);	1357	X_UNLOCK (readdirlock);
1196	#endif	1358	#endif
1197	#if !HAVE_PREADWRITE	1359	#if !HAVE_PREADWRITE
1198	UNLOCK (preadwritelock);	1360	X_UNLOCK (preadwritelock);
1199	#endif	1361	#endif
1200	UNLOCK (reslock);	1362	X_UNLOCK (reslock);
1201	UNLOCK (reqlock);	1363	X_UNLOCK (reqlock);
1202	UNLOCK (wrklock);	1364	X_UNLOCK (wrklock);
1203	}	1365	}
1204		1366
1205	static void atfork_child (void)	1367	static void atfork_child (void)
1206	{	1368	{
1207	aio_req prv;	1369	aio_req prv;
1208		1370
1209	while (prv = reqq_shift (&req_queue))	1371	while (prv = reqq_shift (&req_queue))
1210	req_free (prv);	1372	req_destroy (prv);
1211		1373
1212	while (prv = reqq_shift (&res_queue))	1374	while (prv = reqq_shift (&res_queue))
1213	req_free (prv);	1375	req_destroy (prv);
1214		1376
1215	while (wrk_first.next != &wrk_first)	1377	while (wrk_first.next != &wrk_first)
1216	{	1378	{
1217	worker *wrk = wrk_first.next;	1379	worker *wrk = wrk_first.next;
1218		1380
1219	if (wrk->req)	1381	if (wrk->req)
1220	req_free (wrk->req);	1382	req_destroy (wrk->req);
1221		1383
1222	worker_clear (wrk);	1384	worker_clear (wrk);
1223	worker_free (wrk);	1385	worker_free (wrk);
1224	}	1386	}
1225		1387
…		…
1227	idle = 0;	1389	idle = 0;
1228	nreqs = 0;	1390	nreqs = 0;
1229	nready = 0;	1391	nready = 0;
1230	npending = 0;	1392	npending = 0;
1231		1393
1232	close (respipe [0]);
1233	close (respipe [1]);
1234	create_pipe ();	1394	create_respipe ();
1235		1395
1236	atfork_parent ();	1396	atfork_parent ();
1237	}	1397	}
1238		1398
1239	#define dREQ \	1399	#define dREQ \
…		…
1268	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1428	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1269	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1429	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1270	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1430	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1431	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1432	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1433	#ifdef _WIN32
		1434	X_MUTEX_CHECK (wrklock);
		1435	X_MUTEX_CHECK (reslock);
		1436	X_MUTEX_CHECK (reqlock);
		1437	X_MUTEX_CHECK (reqwait);
		1438	X_MUTEX_CHECK (preadwritelock);
		1439	X_MUTEX_CHECK (readdirlock);
		1440
		1441	X_COND_CHECK (reqwait);
		1442	#else
1273	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1443	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1444	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1445	#endif
1274		1446
1275	create_pipe ();	1447	create_respipe ();
		1448
1276	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1449	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1277	}	1450	}
1278		1451
1279	void	1452	void
1280	max_poll_reqs (int nreqs)	1453	max_poll_reqs (int nreqs)
1281	PROTOTYPE: $	1454	PROTOTYPE: $
…		…
1310	max_outstanding = maxreqs;	1483	max_outstanding = maxreqs;
1311	OUTPUT:	1484	OUTPUT:
1312	RETVAL	1485	RETVAL
1313		1486
1314	void	1487	void
1315	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1488	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1316	SV8 * pathname
1317	int flags
1318	int mode
1319	SV * callback
1320	PROTOTYPE: $$$;$	1489	PROTOTYPE: $$$;$
1321	PPCODE:	1490	PPCODE:
1322	{	1491	{
1323	dREQ;	1492	dREQ;
1324		1493
…		…
1330		1499
1331	REQ_SEND;	1500	REQ_SEND;
1332	}	1501	}
1333		1502
1334	void	1503	void
1335	aio_close (fh,callback=&PL_sv_undef)	1504	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1336	SV * fh
1337	SV * callback
1338	PROTOTYPE: $;$	1505	PROTOTYPE: $;$
1339	ALIAS:	1506	ALIAS:
1340	aio_close = REQ_CLOSE	1507	aio_close = REQ_CLOSE
1341	aio_fsync = REQ_FSYNC	1508	aio_fsync = REQ_FSYNC
1342	aio_fdatasync = REQ_FDATASYNC	1509	aio_fdatasync = REQ_FDATASYNC
1343	PPCODE:	1510	PPCODE:
1344	{	1511	{
1345	dREQ;	1512	dREQ;
1346		1513
1347	req->type = ix;	1514	req->type = ix;
1348	req->fh = newSVsv (fh);	1515	req->sv1 = newSVsv (fh);
1349	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1516	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1350		1517
1351	REQ_SEND (req);	1518	REQ_SEND (req);
1352	}	1519	}
1353		1520
1354	void	1521	void
1355	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1522	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1356	SV * fh
1357	UV offset
1358	UV length
1359	SV8 * data
1360	UV dataoffset
1361	SV * callback
1362	ALIAS:	1523	ALIAS:
1363	aio_read = REQ_READ	1524	aio_read = REQ_READ
1364	aio_write = REQ_WRITE	1525	aio_write = REQ_WRITE
1365	PROTOTYPE: $$$$$;$	1526	PROTOTYPE: $$$$$;$
1366	PPCODE:	1527	PPCODE:
1367	{	1528	{
1368	STRLEN svlen;	1529	STRLEN svlen;
1369	char *svptr = SvPVbyte (data, svlen);	1530	char *svptr = SvPVbyte (data, svlen);
		1531	UV len = SvUV (length);
1370		1532
1371	SvUPGRADE (data, SVt_PV);	1533	SvUPGRADE (data, SVt_PV);
1372	SvPOK_on (data);	1534	SvPOK_on (data);
1373		1535
1374	if (dataoffset < 0)	1536	if (dataoffset < 0)
1375	dataoffset += svlen;	1537	dataoffset += svlen;
1376		1538
1377	if (dataoffset < 0 || dataoffset > svlen)	1539	if (dataoffset < 0 || dataoffset > svlen)
1378	croak ("data offset outside of string");	1540	croak ("dataoffset outside of data scalar");
1379		1541
1380	if (ix == REQ_WRITE)	1542	if (ix == REQ_WRITE)
1381	{	1543	{
1382	/* write: check length and adjust. */	1544	/* write: check length and adjust. */
1383	if (length < 0 || length + dataoffset > svlen)	1545	if (!SvOK (length) || len + dataoffset > svlen)
1384	length = svlen - dataoffset;	1546	len = svlen - dataoffset;
1385	}	1547	}
1386	else	1548	else
1387	{	1549	{
1388	/* read: grow scalar as necessary */	1550	/* read: grow scalar as necessary */
1389	svptr = SvGROW (data, length + dataoffset);	1551	svptr = SvGROW (data, len + dataoffset + 1);
1390	}	1552	}
1391		1553
1392	if (length < 0)	1554	if (len < 0)
1393	croak ("length must not be negative");	1555	croak ("length must not be negative");
1394		1556
1395	{	1557	{
1396	dREQ;	1558	dREQ;
1397		1559
1398	req->type = ix;	1560	req->type = ix;
1399	req->fh = newSVsv (fh);	1561	req->sv1 = newSVsv (fh);
1400	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1562	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1401	: IoOFP (sv_2io (fh)));	1563	: IoOFP (sv_2io (fh)));
1402	req->offs = offset;	1564	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1403	req->size = length;	1565	req->size = len;
1404	req->sv1 = SvREFCNT_inc (data);	1566	req->sv2 = SvREFCNT_inc (data);
1405	req->ptr1 = (char *)svptr + dataoffset;	1567	req->ptr1 = (char *)svptr + dataoffset;
1406	req->stroffset = dataoffset;	1568	req->stroffset = dataoffset;
1407		1569
1408	if (!SvREADONLY (data))	1570	if (!SvREADONLY (data))
1409	{	1571	{
1410	SvREADONLY_on (data);	1572	SvREADONLY_on (data);
1411	req->flags |= FLAG_SV1_RO_OFF;	1573	req->flags |= FLAG_SV2_RO_OFF;
1412	}	1574	}
1413		1575
1414	REQ_SEND;	1576	REQ_SEND;
1415	}	1577	}
1416	}	1578	}
1417		1579
1418	void	1580	void
1419	aio_readlink (path,callback=&PL_sv_undef)	1581	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1420	SV8 * path
1421	SV * callback
1422	PROTOTYPE: $$;$	1582	PROTOTYPE: $$;$
1423	PPCODE:	1583	PPCODE:
1424	{	1584	{
1425	SV *data;	1585	SV *data;
1426	dREQ;	1586	dREQ;
1427		1587
1428	data = newSV (NAME_MAX);	1588	data = newSV (NAME_MAX);
1429	SvPOK_on (data);	1589	SvPOK_on (data);
1430		1590
1431	req->type = REQ_READLINK;	1591	req->type = REQ_READLINK;
1432	req->fh = newSVsv (path);	1592	req->sv1 = newSVsv (path);
1433	req->ptr2 = SvPVbyte_nolen (req->fh);	1593	req->ptr2 = SvPVbyte_nolen (req->sv1);
1434	req->sv1 = data;	1594	req->sv2 = data;
1435	req->ptr1 = SvPVbyte_nolen (data);	1595	req->ptr1 = SvPVbyte_nolen (data);
1436		1596
1437	REQ_SEND;	1597	REQ_SEND;
1438	}	1598	}
1439		1599
1440	void	1600	void
1441	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1601	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1442	SV * out_fh
1443	SV * in_fh
1444	UV in_offset
1445	UV length
1446	SV * callback
1447	PROTOTYPE: $$$$;$	1602	PROTOTYPE: $$$$;$
1448	PPCODE:	1603	PPCODE:
1449	{	1604	{
1450	dREQ;	1605	dREQ;
1451		1606
1452	req->type = REQ_SENDFILE;	1607	req->type = REQ_SENDFILE;
1453	req->fh = newSVsv (out_fh);	1608	req->sv1 = newSVsv (out_fh);
1454	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1609	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1455	req->sv2 = newSVsv (in_fh);	1610	req->sv2 = newSVsv (in_fh);
1456	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1611	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1457	req->offs = in_offset;	1612	req->offs = SvVAL64 (in_offset);
1458	req->size = length;	1613	req->size = length;
1459		1614
1460	REQ_SEND;	1615	REQ_SEND;
1461	}	1616	}
1462		1617
1463	void	1618	void
1464	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1619	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1465	SV * fh
1466	UV offset
1467	IV length
1468	SV * callback
1469	PROTOTYPE: $$$;$	1620	PROTOTYPE: $$$;$
1470	PPCODE:	1621	PPCODE:
1471	{	1622	{
1472	dREQ;	1623	dREQ;
1473		1624
1474	req->type = REQ_READAHEAD;	1625	req->type = REQ_READAHEAD;
1475	req->fh = newSVsv (fh);	1626	req->sv1 = newSVsv (fh);
1476	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1627	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1477	req->offs = offset;	1628	req->offs = SvVAL64 (offset);
1478	req->size = length;	1629	req->size = length;
1479		1630
1480	REQ_SEND;	1631	REQ_SEND;
1481	}	1632	}
1482		1633
1483	void	1634	void
1484	aio_stat (fh_or_path,callback=&PL_sv_undef)	1635	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1485	SV8 * fh_or_path
1486	SV * callback
1487	ALIAS:	1636	ALIAS:
1488	aio_stat = REQ_STAT	1637	aio_stat = REQ_STAT
1489	aio_lstat = REQ_LSTAT	1638	aio_lstat = REQ_LSTAT
1490	PPCODE:	1639	PPCODE:
1491	{	1640	{
1492	dREQ;	1641	dREQ;
1493		1642
1494	req->ptr2 = malloc (sizeof (Stat_t));	1643	req->ptr2 = malloc (sizeof (Stat_t));
1495	if (!req->ptr2)	1644	if (!req->ptr2)
1496	{	1645	{
1497	req_free (req);	1646	req_destroy (req);
1498	croak ("out of memory during aio_stat statdata allocation");	1647	croak ("out of memory during aio_stat statdata allocation");
1499	}	1648	}
1500		1649
1501	req->flags |= FLAG_PTR2_FREE;	1650	req->flags |= FLAG_PTR2_FREE;
		1651	req->sv1 = newSVsv (fh_or_path);
1502		1652
1503	if (SvPOK (fh_or_path))	1653	if (SvPOK (fh_or_path))
1504	{	1654	{
1505	req->type = ix;	1655	req->type = ix;
1506	req->sv1 = newSVsv (fh_or_path);
1507	req->ptr1 = SvPVbyte_nolen (req->sv1);	1656	req->ptr1 = SvPVbyte_nolen (req->sv1);
1508	}	1657	}
1509	else	1658	else
1510	{	1659	{
1511	req->type = REQ_FSTAT;	1660	req->type = REQ_FSTAT;
1512	req->fh = newSVsv (fh_or_path);
1513	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1661	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514	}	1662	}
1515		1663
1516	REQ_SEND;	1664	REQ_SEND;
1517	}	1665	}
1518		1666
1519	void	1667	void
		1668	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1669	PPCODE:
		1670	{
		1671	dREQ;
		1672
		1673	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1674	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1675	req->sv1 = newSVsv (fh_or_path);
		1676
		1677	if (SvPOK (fh_or_path))
		1678	{
		1679	req->type = REQ_UTIME;
		1680	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1681	}
		1682	else
		1683	{
		1684	req->type = REQ_FUTIME;
		1685	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1686	}
		1687
		1688	REQ_SEND;
		1689	}
		1690
		1691	void
		1692	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1693	PPCODE:
		1694	{
		1695	dREQ;
		1696
		1697	req->sv1 = newSVsv (fh_or_path);
		1698	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1699
		1700	if (SvPOK (fh_or_path))
		1701	{
		1702	req->type = REQ_TRUNCATE;
		1703	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1704	}
		1705	else
		1706	{
		1707	req->type = REQ_FTRUNCATE;
		1708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1709	}
		1710
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
		1715	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1716	PPCODE:
		1717	{
		1718	dREQ;
		1719
		1720	req->mode = mode;
		1721	req->sv1 = newSVsv (fh_or_path);
		1722
		1723	if (SvPOK (fh_or_path))
		1724	{
		1725	req->type = REQ_CHMOD;
		1726	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1727	}
		1728	else
		1729	{
		1730	req->type = REQ_FCHMOD;
		1731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1732	}
		1733
		1734	REQ_SEND;
		1735	}
		1736
		1737	void
		1738	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1739	PPCODE:
		1740	{
		1741	dREQ;
		1742
		1743	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1744	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1745	req->sv1 = newSVsv (fh_or_path);
		1746
		1747	if (SvPOK (fh_or_path))
		1748	{
		1749	req->type = REQ_CHOWN;
		1750	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1751	}
		1752	else
		1753	{
		1754	req->type = REQ_FCHOWN;
		1755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1756	}
		1757
		1758	REQ_SEND;
		1759	}
		1760
		1761	void
1520	aio_unlink (pathname,callback=&PL_sv_undef)	1762	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1521	SV8 * pathname
1522	SV * callback
1523	ALIAS:	1763	ALIAS:
1524	aio_unlink = REQ_UNLINK	1764	aio_unlink = REQ_UNLINK
1525	aio_rmdir = REQ_RMDIR	1765	aio_rmdir = REQ_RMDIR
1526	aio_readdir = REQ_READDIR	1766	aio_readdir = REQ_READDIR
1527	PPCODE:	1767	PPCODE:
…		…
1534		1774
1535	REQ_SEND;	1775	REQ_SEND;
1536	}	1776	}
1537		1777
1538	void	1778	void
		1779	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1780	PPCODE:
		1781	{
		1782	dREQ;
		1783
		1784	req->type = REQ_MKDIR;
		1785	req->sv1 = newSVsv (pathname);
		1786	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1787	req->mode = mode;
		1788
		1789	REQ_SEND;
		1790	}
		1791
		1792	void
1539	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1793	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1540	SV8 * oldpath
1541	SV8 * newpath
1542	SV * callback
1543	ALIAS:	1794	ALIAS:
1544	aio_link = REQ_LINK	1795	aio_link = REQ_LINK
1545	aio_symlink = REQ_SYMLINK	1796	aio_symlink = REQ_SYMLINK
1546	aio_rename = REQ_RENAME	1797	aio_rename = REQ_RENAME
1547	PPCODE:	1798	PPCODE:
1548	{	1799	{
1549	dREQ;	1800	dREQ;
1550		1801
1551	req->type = ix;	1802	req->type = ix;
1552	req->fh = newSVsv (oldpath);	1803	req->sv2 = newSVsv (oldpath);
1553	req->ptr2 = SvPVbyte_nolen (req->fh);	1804	req->ptr2 = SvPVbyte_nolen (req->sv2);
1554	req->sv1 = newSVsv (newpath);	1805	req->sv1 = newSVsv (newpath);
1555	req->ptr1 = SvPVbyte_nolen (req->sv1);	1806	req->ptr1 = SvPVbyte_nolen (req->sv1);
1556		1807
1557	REQ_SEND;	1808	REQ_SEND;
1558	}	1809	}
1559		1810
1560	void	1811	void
1561	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1562	SV8 * pathname
1563	SV * callback
1564	UV mode
1565	UV dev
1566	PPCODE:	1813	PPCODE:
1567	{	1814	{
1568	dREQ;	1815	dREQ;
1569		1816
1570	req->type = REQ_MKNOD;	1817	req->type = REQ_MKNOD;
…		…
1575		1822
1576	REQ_SEND;	1823	REQ_SEND;
1577	}	1824	}
1578		1825
1579	void	1826	void
1580	aio_busy (delay,callback=&PL_sv_undef)	1827	aio_busy (double delay, SV *callback=&PL_sv_undef)
1581	double delay
1582	SV * callback
1583	PPCODE:	1828	PPCODE:
1584	{	1829	{
1585	dREQ;	1830	dREQ;
1586		1831
1587	req->type = REQ_BUSY;	1832	req->type = REQ_BUSY;
1588	req->int1 = delay < 0. ? 0 : delay;	1833	req->nv1 = delay < 0. ? 0. : delay;
1589	req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1590		1834
1591	REQ_SEND;	1835	REQ_SEND;
1592	}	1836	}
1593		1837
1594	void	1838	void
1595	aio_group (callback=&PL_sv_undef)	1839	aio_group (SV *callback=&PL_sv_undef)
1596	SV * callback
1597	PROTOTYPE: ;$	1840	PROTOTYPE: ;$
1598	PPCODE:	1841	PPCODE:
1599	{	1842	{
1600	dREQ;	1843	dREQ;
1601		1844
…		…
1604	req_send (req);	1847	req_send (req);
1605	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1848	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1606	}	1849	}
1607		1850
1608	void	1851	void
1609	aio_nop (callback=&PL_sv_undef)	1852	aio_nop (SV *callback=&PL_sv_undef)
1610	SV * callback
1611	PPCODE:	1853	PPCODE:
1612	{	1854	{
1613	dREQ;	1855	dREQ;
1614		1856
1615	req->type = REQ_NOP;	1857	req->type = REQ_NOP;
…		…
1651		1893
1652	int	1894	int
1653	poll()	1895	poll()
1654	PROTOTYPE:	1896	PROTOTYPE:
1655	CODE:	1897	CODE:
1656	if (nreqs)
1657	{
1658	poll_wait ();	1898	poll_wait ();
1659	RETVAL = poll_cb ();	1899	RETVAL = poll_cb ();
1660	}
1661	else
1662	RETVAL = 0;
1663	OUTPUT:	1900	OUTPUT:
1664	RETVAL	1901	RETVAL
1665		1902
1666	int	1903	int
1667	poll_fileno()	1904	poll_fileno()
…		…
1681		1918
1682	void	1919	void
1683	poll_wait()	1920	poll_wait()
1684	PROTOTYPE:	1921	PROTOTYPE:
1685	CODE:	1922	CODE:
1686	if (nreqs)
1687	poll_wait ();	1923	poll_wait ();
		1924
		1925	void
		1926	setsig (int signum = SIGIO)
		1927	PROTOTYPE: ;$
		1928	CODE:
		1929	{
		1930	if (block_sig_level)
		1931	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1932
		1933	X_LOCK (reslock);
		1934	main_tid = pthread_self ();
		1935	main_sig = signum;
		1936	X_UNLOCK (reslock);
		1937
		1938	if (main_sig && npending)
		1939	pthread_kill (main_tid, main_sig);
		1940	}
		1941
		1942	void
		1943	aio_block (SV *cb)
		1944	PROTOTYPE: &
		1945	PPCODE:
		1946	{
		1947	int count;
		1948
		1949	block_sig ();
		1950	PUSHMARK (SP);
		1951	PUTBACK;
		1952	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1953	SPAGAIN;
		1954	unblock_sig ();
		1955
		1956	if (SvTRUE (ERRSV))
		1957	croak (0);
		1958
		1959	XSRETURN (count);
		1960	}
1688		1961
1689	int	1962	int
1690	nreqs()	1963	nreqs()
1691	PROTOTYPE:	1964	PROTOTYPE:
1692	CODE:	1965	CODE:
…		…
1712		1985
1713	int	1986	int
1714	nthreads()	1987	nthreads()
1715	PROTOTYPE:	1988	PROTOTYPE:
1716	CODE:	1989	CODE:
1717	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1990	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1718	RETVAL = started;	1991	RETVAL = started;
1719	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1992	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1720	OUTPUT:	1993	OUTPUT:
1721	RETVAL	1994	RETVAL
1722		1995
1723	PROTOTYPES: DISABLE	1996	PROTOTYPES: DISABLE
1724		1997
…		…
1742	PPCODE:	2015	PPCODE:
1743	{	2016	{
1744	int i;	2017	int i;
1745	aio_req req;	2018	aio_req req;
1746		2019
		2020	if (main_sig && !block_sig_level)
		2021	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2022
1747	if (grp->int1 == 2)	2023	if (grp->int1 == 2)
1748	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2024	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1749		2025
1750	for (i = 1; i < items; ++i )	2026	for (i = 1; i < items; ++i )
1751	{	2027	{

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