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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.87 by root, Mon Oct 30 23:42:27 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;
		109
		110	typedef SV SV8; /* byte-sv, used for argument-checking */
91		111
92	enum {	112	enum {
93	REQ_QUIT,	113	REQ_QUIT,
94	REQ_OPEN, REQ_CLOSE,	114	REQ_OPEN, REQ_CLOSE,
95	REQ_READ, REQ_WRITE, REQ_READAHEAD,	115	REQ_READ, REQ_WRITE,
96	REQ_SENDFILE,	116	REQ_READAHEAD, REQ_SENDFILE,
97	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,
98	REQ_FSYNC, REQ_FDATASYNC,	122	REQ_FSYNC, REQ_FDATASYNC,
99	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	123	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
100	REQ_MKNOD, REQ_READDIR,	124	REQ_MKNOD, REQ_READDIR,
101	REQ_LINK, REQ_SYMLINK, REQ_READLINK,	125	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
102	REQ_GROUP, REQ_NOP,	126	REQ_GROUP, REQ_NOP,
103	REQ_BUSY,	127	REQ_BUSY,
104	};	128	};
…		…
108		132
109	typedef struct aio_cb	133	typedef struct aio_cb
110	{	134	{
111	struct aio_cb *volatile next;	135	struct aio_cb *volatile next;
112		136
113	SV *callback, *fh;	137	SV *callback;
114	SV *sv1, *sv2;	138	SV *sv1, *sv2;
115	void *ptr1, *ptr2;	139	void *ptr1, *ptr2;
116	off_t offs;	140	off_t offs;
117	size_t size;	141	size_t size;
118	ssize_t result;	142	ssize_t result;
		143	double nv1, nv2;
119		144
120	STRLEN stroffset;	145	STRLEN stroffset;
121	int type;	146	int type;
122	int int1, int2;	147	int int1, int2, int3;
123	int errorno;	148	int errorno;
124	mode_t mode; /* open */	149	mode_t mode; /* open */
125		150
126	unsigned char flags;	151	unsigned char flags;
127	unsigned char pri;	152	unsigned char pri;
…		…
129	SV *self; /* the perl counterpart of this request, if any */	154	SV *self; /* the perl counterpart of this request, if any */
130	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	155	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
131	} aio_cb;	156	} aio_cb;
132		157
133	enum {	158	enum {
134	FLAG_CANCELLED = 0x01,	159	FLAG_CANCELLED = 0x01, /* request was cancelled */
135	FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */	160	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
136	FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */	161	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
137	};	162	};
138		163
139	typedef aio_cb *aio_req;	164	typedef aio_cb *aio_req;
140	typedef aio_cb *aio_req_ornot;	165	typedef aio_cb *aio_req_ornot;
141		166
…		…
158	{	183	{
159	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS	184	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
160	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);	185	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
161	}	186	}
162		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
163	static int next_pri = DEFAULT_PRI + PRI_BIAS;	222	static int next_pri = DEFAULT_PRI + PRI_BIAS;
164		223
165	static unsigned int started, idle, wanted;	224	static unsigned int started, idle, wanted;
166		225
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 */	226	/* worker threads management */
177	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	227	static mutex_t wrklock = X_MUTEX_INIT;
178		228
179	typedef struct worker {	229	typedef struct worker {
180	/* locked by wrklock */	230	/* locked by wrklock */
181	struct worker *prev, *next;	231	struct worker *prev, *next;
182		232
183	pthread_t tid;	233	thread_t tid;
184		234
185	/* locked by reslock, reqlock or wrklock */	235	/* locked by reslock, reqlock or wrklock */
186	aio_req req; /* currently processed request */	236	aio_req req; /* currently processed request */
187	void *dbuf;	237	void *dbuf;
188	DIR *dirp;	238	DIR *dirp;
…		…
214	}	264	}
215		265
216	static volatile unsigned int nreqs, nready, npending;	266	static volatile unsigned int nreqs, nready, npending;
217	static volatile unsigned int max_idle = 4;	267	static volatile unsigned int max_idle = 4;
218	static volatile unsigned int max_outstanding = 0xffffffff;	268	static volatile unsigned int max_outstanding = 0xffffffff;
219	static int respipe [2];	269	static int respipe_osf [2], respipe [2] = { -1, -1 };
220		270
221	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	271	static mutex_t reslock = X_MUTEX_INIT;
222	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	272	static mutex_t reqlock = X_MUTEX_INIT;
223	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	273	static cond_t reqwait = X_COND_INIT;
224		274
225	#if WORDACCESS_UNSAFE	275	#if WORDACCESS_UNSAFE
226		276
227	static unsigned int get_nready ()	277	static unsigned int get_nready ()
228	{	278	{
229	unsigned int retval;	279	unsigned int retval;
230		280
231	LOCK (reqlock);	281	X_LOCK (reqlock);
232	retval = nready;	282	retval = nready;
233	UNLOCK (reqlock);	283	X_UNLOCK (reqlock);
234		284
235	return retval;	285	return retval;
236	}	286	}
237		287
238	static unsigned int get_npending ()	288	static unsigned int get_npending ()
239	{	289	{
240	unsigned int retval;	290	unsigned int retval;
241		291
242	LOCK (reslock);	292	X_LOCK (reslock);
243	retval = npending;	293	retval = npending;
244	UNLOCK (reslock);	294	X_UNLOCK (reslock);
245		295
246	return retval;	296	return retval;
247	}	297	}
248		298
249	static unsigned int get_nthreads ()	299	static unsigned int get_nthreads ()
250	{	300	{
251	unsigned int retval;	301	unsigned int retval;
252		302
253	LOCK (wrklock);	303	X_LOCK (wrklock);
254	retval = started;	304	retval = started;
255	UNLOCK (wrklock);	305	X_UNLOCK (wrklock);
256		306
257	return retval;	307	return retval;
258	}	308	}
259		309
260	#else	310	#else
…		…
318		368
319	abort ();	369	abort ();
320	}	370	}
321		371
322	static int poll_cb ();	372	static int poll_cb ();
323	static void req_invoke (aio_req req);	373	static int req_invoke (aio_req req);
324	static void req_free (aio_req req);	374	static void req_destroy (aio_req req);
325	static void req_cancel (aio_req req);	375	static void req_cancel (aio_req req);
326		376
327	/* must be called at most once */	377	/* must be called at most once */
328	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
329	{	379	{
…		…
348	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
349	}	399	}
350		400
351	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
352	{	402	{
		403	block_sig ();
		404
353	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354	{	406	{
355	int old_len = grp->size;	407	int old_len = grp->size;
356		408
357	if (grp->sv2 && SvOK (grp->sv2))	409	if (grp->sv2 && SvOK (grp->sv2))
…		…
375	SvREFCNT_dec (grp->sv2);	427	SvREFCNT_dec (grp->sv2);
376	grp->sv2 = 0;	428	grp->sv2 = 0;
377	break;	429	break;
378	}	430	}
379	}	431	}
		432
		433	unblock_sig ();
380	}	434	}
381		435
382	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
383	{	437	{
384	--grp->size;	438	--grp->size;
…		…
387	aio_grp_feed (grp);	441	aio_grp_feed (grp);
388		442
389	/* finish, if done */	443	/* finish, if done */
390	if (!grp->size && grp->int1)	444	if (!grp->size && grp->int1)
391	{	445	{
		446	block_sig ();
		447
392	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
393	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
394	}	457	}
395	}	458	}
396		459
397	static void req_invoke (aio_req req)	460	static int req_invoke (aio_req req)
398	{	461	{
399	dSP;	462	dSP;
400		463
401	if (req->flags & FLAG_SV1_RO_OFF)	464	if (req->flags & FLAG_SV2_RO_OFF)
402	SvREADONLY_off (req->sv1);	465	SvREADONLY_off (req->sv2);
403		466
404	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
405	{	468	{
406	ENTER;	469	ENTER;
407	SAVETMPS;	470	SAVETMPS;
…		…
445	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
446	PUTBACK;	509	PUTBACK;
447	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
448	SPAGAIN;	511	SPAGAIN;
449		512
450	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
451
452	PUSHMARK (SP);	514	PUSHMARK (SP);
453	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
454	}	516	}
455	break;	517	break;
456		518
457	case REQ_GROUP:	519	case REQ_GROUP:
458	req->int1 = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
…		…
473	break;	535	break;
474		536
475	case REQ_READLINK:	537	case REQ_READLINK:
476	if (req->result > 0)	538	if (req->result > 0)
477	{	539	{
478	SvCUR_set (req->sv1, req->result);	540	SvCUR_set (req->sv2, req->result);
479	*SvEND (req->sv1) = 0;	541	*SvEND (req->sv2) = 0;
480	PUSHs (req->sv1);	542	PUSHs (req->sv2);
481	}	543	}
482	break;	544	break;
483		545
484	case REQ_STAT:	546	case REQ_STAT:
485	case REQ_LSTAT:	547	case REQ_LSTAT:
…		…
489	PL_statcache = *(Stat_t *)(req->ptr2);	551	PL_statcache = *(Stat_t *)(req->ptr2);
490	PUSHs (sv_2mortal (newSViv (req->result)));	552	PUSHs (sv_2mortal (newSViv (req->result)));
491	break;	553	break;
492		554
493	case REQ_READ:	555	case REQ_READ:
494	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));
495	*SvEND (req->sv1) = 0;	557	*SvEND (req->sv2) = 0;
496	PUSHs (sv_2mortal (newSViv (req->result)));	558	PUSHs (sv_2mortal (newSViv (req->result)));
497	break;	559	break;
498		560
499	default:	561	default:
500	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
…		…
523	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
524		586
525	aio_grp_dec (grp);	587	aio_grp_dec (grp);
526	}	588	}
527		589
528	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
529	{
530	req_free (req);
531	croak (0);
532	}
533	}	591	}
534		592
535	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
536	{	594	{
537	if (req->self)	595	if (req->self)
538	{	596	{
539	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
540	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
541	}	599	}
542		600
543	SvREFCNT_dec (req->fh);
544	SvREFCNT_dec (req->sv1);	601	SvREFCNT_dec (req->sv1);
545	SvREFCNT_dec (req->sv2);	602	SvREFCNT_dec (req->sv2);
546	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
547		604
548	if (req->flags & FLAG_PTR2_FREE)	605	if (req->flags & FLAG_PTR2_FREE)
…		…
570	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
571		628
572	req_cancel_subs (req);	629	req_cancel_subs (req);
573	}	630	}
574		631
575	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);
576		677
577	static void start_thread (void)	678	static void start_thread (void)
578	{	679	{
579	sigset_t fullsigset, oldsigset;
580	pthread_attr_t attr;
581
582	worker *wrk = calloc (1, sizeof (worker));	680	worker *wrk = calloc (1, sizeof (worker));
583		681
584	if (!wrk)	682	if (!wrk)
585	croak ("unable to allocate worker thread data");	683	croak ("unable to allocate worker thread data");
586		684
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);	685	X_LOCK (wrklock);
597	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
598		686
599	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	687	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
600	{	688	{
601	wrk->prev = &wrk_first;	689	wrk->prev = &wrk_first;
602	wrk->next = wrk_first.next;	690	wrk->next = wrk_first.next;
603	wrk_first.next->prev = wrk;	691	wrk_first.next->prev = wrk;
604	wrk_first.next = wrk;	692	wrk_first.next = wrk;
605	++started;	693	++started;
606	}	694	}
607	else	695	else
608	free (wrk);	696	free (wrk);
609		697
610	sigprocmask (SIG_SETMASK, &oldsigset, 0);
611	UNLOCK (wrklock);	698	X_UNLOCK (wrklock);
612	}	699	}
613		700
614	static void maybe_start_thread ()	701	static void maybe_start_thread ()
615	{	702	{
616	if (get_nthreads () >= wanted)	703	if (get_nthreads () >= wanted)
…		…
623	start_thread ();	710	start_thread ();
624	}	711	}
625		712
626	static void req_send (aio_req req)	713	static void req_send (aio_req req)
627	{	714	{
		715	block_sig ();
		716
628	++nreqs;	717	++nreqs;
629		718
630	LOCK (reqlock);	719	X_LOCK (reqlock);
631	++nready;	720	++nready;
632	reqq_push (&req_queue, req);	721	reqq_push (&req_queue, req);
633	pthread_cond_signal (&reqwait);	722	X_COND_SIGNAL (reqwait);
634	UNLOCK (reqlock);	723	X_UNLOCK (reqlock);
		724
		725	unblock_sig ();
635		726
636	maybe_start_thread ();	727	maybe_start_thread ();
637	}	728	}
638		729
639	static void end_thread (void)	730	static void end_thread (void)
…		…
643	Newz (0, req, 1, aio_cb);	734	Newz (0, req, 1, aio_cb);
644		735
645	req->type = REQ_QUIT;	736	req->type = REQ_QUIT;
646	req->pri = PRI_MAX + PRI_BIAS;	737	req->pri = PRI_MAX + PRI_BIAS;
647		738
648	LOCK (reqlock);	739	X_LOCK (reqlock);
649	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
650	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
651	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
652		743
653	LOCK (wrklock);	744	X_LOCK (wrklock);
654	--started;	745	--started;
655	UNLOCK (wrklock);	746	X_UNLOCK (wrklock);
656	}	747	}
657		748
658	static void set_max_idle (int nthreads)	749	static void set_max_idle (int nthreads)
659	{	750	{
660	if (WORDACCESS_UNSAFE) LOCK (reqlock);	751	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
661	max_idle = nthreads <= 0 ? 1 : nthreads;	752	max_idle = nthreads <= 0 ? 1 : nthreads;
662	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	753	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
663	}	754	}
664		755
665	static void min_parallel (int nthreads)	756	static void min_parallel (int nthreads)
666	{	757	{
667	if (wanted < nthreads)	758	if (wanted < nthreads)
…		…
682	fd_set rfd;	773	fd_set rfd;
683		774
684	while (nreqs)	775	while (nreqs)
685	{	776	{
686	int size;	777	int size;
687	if (WORDACCESS_UNSAFE) LOCK (reslock);	778	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
688	size = res_queue.size;	779	size = res_queue.size;
689	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	780	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
690		781
691	if (size)	782	if (size)
692	return;	783	return;
693		784
694	maybe_start_thread ();	785	maybe_start_thread ();
695		786
696	FD_ZERO(&rfd);	787	FD_ZERO (&rfd);
697	FD_SET(respipe [0], &rfd);	788	FD_SET (respipe [0], &rfd);
698		789
699	select (respipe [0] + 1, &rfd, 0, 0, 0);	790	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
700	}	791	}
701	}	792	}
702		793
703	static int poll_cb ()	794	static int poll_cb ()
704	{	795	{
…		…
710	aio_req req;	801	aio_req req;
711		802
712	if (max_poll_time)	803	if (max_poll_time)
713	gettimeofday (&tv_start, 0);	804	gettimeofday (&tv_start, 0);
714		805
		806	block_sig ();
		807
715	for (;;)	808	for (;;)
716	{	809	{
717	for (;;)	810	for (;;)
718	{	811	{
719	maybe_start_thread ();	812	maybe_start_thread ();
720		813
721	LOCK (reslock);	814	X_LOCK (reslock);
722	req = reqq_shift (&res_queue);	815	req = reqq_shift (&res_queue);
723		816
724	if (req)	817	if (req)
725	{	818	{
726	--npending;	819	--npending;
727		820
728	if (!res_queue.size)	821	if (!res_queue.size)
729	{	822	{
730	/* read any signals sent by the worker threads */	823	/* read any signals sent by the worker threads */
731	char buf [32];	824	char buf [4];
732	while (read (respipe [0], buf, 32) == 32)	825	while (respipe_read (respipe [0], buf, 4) == 4)
733	;	826	;
734	}	827	}
735	}	828	}
736		829
737	UNLOCK (reslock);	830	X_UNLOCK (reslock);
738		831
739	if (!req)	832	if (!req)
740	break;	833	break;
741		834
742	--nreqs;	835	--nreqs;
…		…
746	req->int1 = 1; /* mark request as delayed */	839	req->int1 = 1; /* mark request as delayed */
747	continue;	840	continue;
748	}	841	}
749	else	842	else
750	{	843	{
751	req_invoke (req);	844	if (!req_invoke (req))
		845	{
		846	req_destroy (req);
		847	unblock_sig ();
		848	croak (0);
		849	}
752		850
753	count++;	851	count++;
754	}	852	}
755		853
756	req_free (req);	854	req_destroy (req);
757		855
758	if (maxreqs && !--maxreqs)	856	if (maxreqs && !--maxreqs)
759	break;	857	break;
760		858
761	if (max_poll_time)	859	if (max_poll_time)
…		…
773	poll_wait ();	871	poll_wait ();
774		872
775	++maxreqs;	873	++maxreqs;
776	}	874	}
777		875
		876	unblock_sig ();
778	return count;	877	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	}	878	}
792		879
793	/*****************************************************************************/	880	/*****************************************************************************/
794	/* work around various missing functions */	881	/* work around various missing functions */
795		882
…		…
800	/*	887	/*
801	* make our pread/pwrite safe against themselves, but not against	888	* make our pread/pwrite safe against themselves, but not against
802	* 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,
803	* but that's your problem, not mine.	890	* but that's your problem, not mine.
804	*/	891	*/
805	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	892	static mutex_t preadwritelock = X_MUTEX_INIT;
806		893
807	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)
808	{	895	{
809	ssize_t res;	896	ssize_t res;
810	off_t ooffset;	897	off_t ooffset;
811		898
812	LOCK (preadwritelock);	899	X_LOCK (preadwritelock);
813	ooffset = lseek (fd, 0, SEEK_CUR);	900	ooffset = lseek (fd, 0, SEEK_CUR);
814	lseek (fd, offset, SEEK_SET);	901	lseek (fd, offset, SEEK_SET);
815	res = read (fd, buf, count);	902	res = read (fd, buf, count);
816	lseek (fd, ooffset, SEEK_SET);	903	lseek (fd, ooffset, SEEK_SET);
817	UNLOCK (preadwritelock);	904	X_UNLOCK (preadwritelock);
818		905
819	return res;	906	return res;
820	}	907	}
821		908
822	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)
823	{	910	{
824	ssize_t res;	911	ssize_t res;
825	off_t ooffset;	912	off_t ooffset;
826		913
827	LOCK (preadwritelock);	914	X_LOCK (preadwritelock);
828	ooffset = lseek (fd, 0, SEEK_CUR);	915	ooffset = lseek (fd, 0, SEEK_CUR);
829	lseek (fd, offset, SEEK_SET);	916	lseek (fd, offset, SEEK_SET);
830	res = write (fd, buf, count);	917	res = write (fd, buf, count);
831	lseek (fd, offset, SEEK_SET);	918	lseek (fd, offset, SEEK_SET);
832	UNLOCK (preadwritelock);	919	X_UNLOCK (preadwritelock);
833		920
834	return res;	921	return res;
835	}	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
836	#endif	951	#endif
837		952
838	#if !HAVE_FDATASYNC	953	#if !HAVE_FDATASYNC
839	# define fdatasync fsync	954	# define fdatasync fsync
840	#endif	955	#endif
…		…
842	#if !HAVE_READAHEAD	957	#if !HAVE_READAHEAD
843	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	958	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
844		959
845	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)
846	{	961	{
		962	size_t todo = count;
847	dBUF;	963	dBUF;
848		964
849	while (count > 0)	965	while (todo > 0)
850	{	966	{
851	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	967	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
852		968
853	pread (fd, aio_buf, len, offset);	969	pread (fd, aio_buf, len, offset);
854	offset += len;	970	offset += len;
855	count -= len;	971	todo -= len;
856	}	972	}
857		973
858	errno = 0;	974	errno = 0;
		975	return count;
859	}	976	}
860		977
861	#endif	978	#endif
862		979
863	#if !HAVE_READDIR_R	980	#if !HAVE_READDIR_R
864	# define readdir_r aio_readdir_r	981	# define readdir_r aio_readdir_r
865		982
866	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	983	static mutex_t readdirlock = X_MUTEX_INIT;
867		984
868	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)
869	{	986	{
870	struct dirent *e;	987	X_DIRENT *e;
871	int errorno;	988	int errorno;
872		989
873	LOCK (readdirlock);	990	X_LOCK (readdirlock);
874		991
875	e = readdir (dirp);	992	e = readdir (dirp);
876	errorno = errno;	993	errorno = errno;
877		994
878	if (e)	995	if (e)
…		…
881	strcpy (ent->d_name, e->d_name);	998	strcpy (ent->d_name, e->d_name);
882	}	999	}
883	else	1000	else
884	*res = 0;	1001	*res = 0;
885		1002
886	UNLOCK (readdirlock);	1003	X_UNLOCK (readdirlock);
887		1004
888	errno = errorno;	1005	errno = errorno;
889	return e ? 0 : -1;	1006	return e ? 0 : -1;
890	}	1007	}
891	#endif	1008	#endif
…		…
987	static void scandir_ (aio_req req, worker *self)	1104	static void scandir_ (aio_req req, worker *self)
988	{	1105	{
989	DIR *dirp;	1106	DIR *dirp;
990	union	1107	union
991	{	1108	{
992	struct dirent d;	1109	X_DIRENT d;
993	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1110	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
994	} *u;	1111	} *u;
995	struct dirent *entp;	1112	X_DIRENT *entp;
996	char *name, *names;	1113	char *name, *names;
997	int memlen = 4096;	1114	int memlen = 4096;
998	int memofs = 0;	1115	int memofs = 0;
999	int res = 0;	1116	int res = 0;
1000	int errorno;
1001		1117
1002	LOCK (wrklock);	1118	X_LOCK (wrklock);
1003	self->dirp = dirp = opendir (req->ptr1);	1119	self->dirp = dirp = opendir (req->ptr1);
1004	self->dbuf = u = malloc (sizeof (*u));	1120	self->dbuf = u = malloc (sizeof (*u));
1005	req->flags |= FLAG_PTR2_FREE;	1121	req->flags |= FLAG_PTR2_FREE;
1006	req->ptr2 = names = malloc (memlen);	1122	req->ptr2 = names = malloc (memlen);
1007	UNLOCK (wrklock);	1123	X_UNLOCK (wrklock);
1008		1124
1009	if (dirp && u && names)	1125	if (dirp && u && names)
1010	for (;;)	1126	for (;;)
1011	{	1127	{
1012	errno = 0;	1128	errno = 0;
…		…
1024	res++;	1140	res++;
1025		1141
1026	while (memofs + len > memlen)	1142	while (memofs + len > memlen)
1027	{	1143	{
1028	memlen *= 2;	1144	memlen *= 2;
1029	LOCK (wrklock);	1145	X_LOCK (wrklock);
1030	req->ptr2 = names = realloc (names, memlen);	1146	req->ptr2 = names = realloc (names, memlen);
1031	UNLOCK (wrklock);	1147	X_UNLOCK (wrklock);
1032		1148
1033	if (!names)	1149	if (!names)
1034	break;	1150	break;
1035	}	1151	}
1036		1152
…		…
1045	req->result = res;	1161	req->result = res;
1046	}	1162	}
1047		1163
1048	/*****************************************************************************/	1164	/*****************************************************************************/
1049		1165
1050	static void *aio_proc (void *thr_arg)	1166	X_THREAD_PROC (aio_proc)
1051	{	1167	{
		1168	{//D
1052	aio_req req;	1169	aio_req req;
1053	struct timespec ts;	1170	struct timespec ts;
1054	worker *self = (worker *)thr_arg;	1171	worker *self = (worker *)thr_arg;
1055		1172
1056	/* try to distribute timeouts somewhat evenly */	1173	/* try to distribute timeouts somewhat randomly */
1057	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1174	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1058	* (1000000000UL / 1024UL);
1059		1175
1060	for (;;)	1176	for (;;)
1061	{	1177	{
1062	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1178	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1063		1179
1064	LOCK (reqlock);	1180	X_LOCK (reqlock);
1065		1181
1066	for (;;)	1182	for (;;)
1067	{	1183	{
1068	self->req = req = reqq_shift (&req_queue);	1184	self->req = req = reqq_shift (&req_queue);
1069		1185
1070	if (req)	1186	if (req)
1071	break;	1187	break;
1072		1188
1073	++idle;	1189	++idle;
1074		1190
1075	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	1191	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1076	== ETIMEDOUT)	1192	== ETIMEDOUT)
1077	{	1193	{
1078	if (idle > max_idle)	1194	if (idle > max_idle)
1079	{	1195	{
1080	--idle;	1196	--idle;
1081	UNLOCK (reqlock);	1197	X_UNLOCK (reqlock);
1082	LOCK (wrklock);	1198	X_LOCK (wrklock);
1083	--started;	1199	--started;
1084	UNLOCK (wrklock);	1200	X_UNLOCK (wrklock);
1085	goto quit;	1201	goto quit;
1086	}	1202	}
1087		1203
1088	/* we are allowed to idle, so do so without any timeout */	1204	/* we are allowed to idle, so do so without any timeout */
1089	pthread_cond_wait (&reqwait, &reqlock);	1205	X_COND_WAIT (reqwait, reqlock);
1090	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1206	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091	}	1207	}
1092		1208
1093	--idle;	1209	--idle;
1094	}	1210	}
1095		1211
1096	--nready;	1212	--nready;
1097		1213
1098	UNLOCK (reqlock);	1214	X_UNLOCK (reqlock);
1099		1215
1100	errno = 0; /* strictly unnecessary */	1216	errno = 0; /* strictly unnecessary */
1101		1217
1102	if (!(req->flags & FLAG_CANCELLED))	1218	if (!(req->flags & FLAG_CANCELLED))
1103	switch (req->type)	1219	switch (req->type)
1104	{	1220	{
1105	case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;	1221	case REQ_READ: req->result = req->offs >= 0
1106	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;
1107		1227
1108	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;
1109	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;
1110		1230
1111	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;
1112	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;
1113	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;
1114		1241
1115	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;
1116	case REQ_CLOSE: req->result = close (req->int1); break;	1243	case REQ_CLOSE: req->result = close (req->int1); break;
1117	case REQ_UNLINK: req->result = unlink (req->ptr1); break;	1244	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118	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;
1119	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;	1247	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;	1248	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;	1249	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;	1250	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;	1251	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
…		…
1125	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;	1253	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126	case REQ_FSYNC: req->result = fsync (req->int1); break;	1254	case REQ_FSYNC: req->result = fsync (req->int1); break;
1127	case REQ_READDIR: scandir_ (req, self); break;	1255	case REQ_READDIR: scandir_ (req, self); break;
1128		1256
1129	case REQ_BUSY:	1257	case REQ_BUSY:
		1258	#ifdef _WIN32
		1259	Sleep (req->nv1 * 1000.);
		1260	#else
1130	{	1261	{
1131	struct timeval tv;	1262	struct timeval tv;
1132		1263
1133	tv.tv_sec = req->int1;	1264	tv.tv_sec = req->nv1;
1134	tv.tv_usec = req->int2;	1265	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1135		1266
1136	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);
1137	}	1294	}
1138		1295
1139	case REQ_GROUP:	1296	case REQ_GROUP:
1140	case REQ_NOP:	1297	case REQ_NOP:
1141	break;	1298	break;
1142		1299
1143	case REQ_QUIT:	1300	case REQ_QUIT:
1144	goto quit;	1301	goto quit;
1145		1302
1146	default:	1303	default:
1147	req->result = ENOSYS;	1304	req->result = -1;
1148	break;	1305	break;
1149	}	1306	}
1150		1307
1151	req->errorno = errno;	1308	req->errorno = errno;
1152		1309
1153	LOCK (reslock);	1310	X_LOCK (reslock);
1154		1311
1155	++npending;	1312	++npending;
1156		1313
1157	if (!reqq_push (&res_queue, req))	1314	if (!reqq_push (&res_queue, req))
		1315	{
1158	/* write a dummy byte to the pipe so fh becomes ready */	1316	/* write a dummy byte to the pipe so fh becomes ready */
1159	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	}
1160		1323
1161	self->req = 0;	1324	self->req = 0;
1162	worker_clear (self);	1325	worker_clear (self);
1163		1326
1164	UNLOCK (reslock);	1327	X_UNLOCK (reslock);
1165	}	1328	}
1166		1329
1167	quit:	1330	quit:
1168	LOCK (wrklock);	1331	X_LOCK (wrklock);
1169	worker_free (self);	1332	worker_free (self);
1170	UNLOCK (wrklock);	1333	X_UNLOCK (wrklock);
1171		1334
1172	return 0;	1335	return 0;
		1336	}//D
1173	}	1337	}
1174		1338
1175	/*****************************************************************************/	1339	/*****************************************************************************/
1176		1340
1177	static void atfork_prepare (void)	1341	static void atfork_prepare (void)
1178	{	1342	{
1179	LOCK (wrklock);	1343	X_LOCK (wrklock);
1180	LOCK (reqlock);	1344	X_LOCK (reqlock);
1181	LOCK (reslock);	1345	X_LOCK (reslock);
1182	#if !HAVE_PREADWRITE	1346	#if !HAVE_PREADWRITE
1183	LOCK (preadwritelock);	1347	X_LOCK (preadwritelock);
1184	#endif	1348	#endif
1185	#if !HAVE_READDIR_R	1349	#if !HAVE_READDIR_R
1186	LOCK (readdirlock);	1350	X_LOCK (readdirlock);
1187	#endif	1351	#endif
1188	}	1352	}
1189		1353
1190	static void atfork_parent (void)	1354	static void atfork_parent (void)
1191	{	1355	{
1192	#if !HAVE_READDIR_R	1356	#if !HAVE_READDIR_R
1193	UNLOCK (readdirlock);	1357	X_UNLOCK (readdirlock);
1194	#endif	1358	#endif
1195	#if !HAVE_PREADWRITE	1359	#if !HAVE_PREADWRITE
1196	UNLOCK (preadwritelock);	1360	X_UNLOCK (preadwritelock);
1197	#endif	1361	#endif
1198	UNLOCK (reslock);	1362	X_UNLOCK (reslock);
1199	UNLOCK (reqlock);	1363	X_UNLOCK (reqlock);
1200	UNLOCK (wrklock);	1364	X_UNLOCK (wrklock);
1201	}	1365	}
1202		1366
1203	static void atfork_child (void)	1367	static void atfork_child (void)
1204	{	1368	{
1205	aio_req prv;	1369	aio_req prv;
1206		1370
1207	while (prv = reqq_shift (&req_queue))	1371	while (prv = reqq_shift (&req_queue))
1208	req_free (prv);	1372	req_destroy (prv);
1209		1373
1210	while (prv = reqq_shift (&res_queue))	1374	while (prv = reqq_shift (&res_queue))
1211	req_free (prv);	1375	req_destroy (prv);
1212		1376
1213	while (wrk_first.next != &wrk_first)	1377	while (wrk_first.next != &wrk_first)
1214	{	1378	{
1215	worker *wrk = wrk_first.next;	1379	worker *wrk = wrk_first.next;
1216		1380
1217	if (wrk->req)	1381	if (wrk->req)
1218	req_free (wrk->req);	1382	req_destroy (wrk->req);
1219		1383
1220	worker_clear (wrk);	1384	worker_clear (wrk);
1221	worker_free (wrk);	1385	worker_free (wrk);
1222	}	1386	}
1223		1387
…		…
1225	idle = 0;	1389	idle = 0;
1226	nreqs = 0;	1390	nreqs = 0;
1227	nready = 0;	1391	nready = 0;
1228	npending = 0;	1392	npending = 0;
1229		1393
1230	close (respipe [0]);
1231	close (respipe [1]);
1232	create_pipe ();	1394	create_respipe ();
1233		1395
1234	atfork_parent ();	1396	atfork_parent ();
1235	}	1397	}
1236		1398
1237	#define dREQ \	1399	#define dREQ \
…		…
1266	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1428	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1267	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1429	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1268	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1430	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1431	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270	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
1271	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1443	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1444	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1445	#endif
1272		1446
1273	create_pipe ();	1447	create_respipe ();
		1448
1274	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1449	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1275	}	1450	}
1276		1451
1277	void	1452	void
1278	max_poll_reqs (int nreqs)	1453	max_poll_reqs (int nreqs)
1279	PROTOTYPE: $	1454	PROTOTYPE: $
…		…
1308	max_outstanding = maxreqs;	1483	max_outstanding = maxreqs;
1309	OUTPUT:	1484	OUTPUT:
1310	RETVAL	1485	RETVAL
1311		1486
1312	void	1487	void
1313	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1488	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: $$$;$	1489	PROTOTYPE: $$$;$
1319	PPCODE:	1490	PPCODE:
1320	{	1491	{
1321	dREQ;	1492	dREQ;
1322		1493
1323	req->type = REQ_OPEN;	1494	req->type = REQ_OPEN;
1324	req->sv1 = newSVsv (pathname);	1495	req->sv1 = newSVsv (pathname);
1325	req->ptr1 = SvPVbyte_nolen (pathname);	1496	req->ptr1 = SvPVbyte_nolen (req->sv1);
1326	req->int1 = flags;	1497	req->int1 = flags;
1327	req->mode = mode;	1498	req->mode = mode;
1328		1499
1329	REQ_SEND;	1500	REQ_SEND;
1330	}	1501	}
1331		1502
1332	void	1503	void
1333	aio_close (fh,callback=&PL_sv_undef)	1504	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1334	SV * fh
1335	SV * callback
1336	PROTOTYPE: $;$	1505	PROTOTYPE: $;$
1337	ALIAS:	1506	ALIAS:
1338	aio_close = REQ_CLOSE	1507	aio_close = REQ_CLOSE
1339	aio_fsync = REQ_FSYNC	1508	aio_fsync = REQ_FSYNC
1340	aio_fdatasync = REQ_FDATASYNC	1509	aio_fdatasync = REQ_FDATASYNC
1341	PPCODE:	1510	PPCODE:
1342	{	1511	{
1343	dREQ;	1512	dREQ;
1344		1513
1345	req->type = ix;	1514	req->type = ix;
1346	req->fh = newSVsv (fh);	1515	req->sv1 = newSVsv (fh);
1347	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1516	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1348		1517
1349	REQ_SEND (req);	1518	REQ_SEND (req);
1350	}	1519	}
1351		1520
1352	void	1521	void
1353	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)
1354	SV * fh
1355	UV offset
1356	UV length
1357	SV * data
1358	UV dataoffset
1359	SV * callback
1360	ALIAS:	1523	ALIAS:
1361	aio_read = REQ_READ	1524	aio_read = REQ_READ
1362	aio_write = REQ_WRITE	1525	aio_write = REQ_WRITE
1363	PROTOTYPE: $$$$$;$	1526	PROTOTYPE: $$$$$;$
1364	PPCODE:	1527	PPCODE:
1365	{	1528	{
1366	STRLEN svlen;	1529	STRLEN svlen;
1367	char *svptr = SvPVbyte (data, svlen);	1530	char *svptr = SvPVbyte (data, svlen);
		1531	UV len = SvUV (length);
1368		1532
1369	SvUPGRADE (data, SVt_PV);	1533	SvUPGRADE (data, SVt_PV);
1370	SvPOK_on (data);	1534	SvPOK_on (data);
1371		1535
1372	if (dataoffset < 0)	1536	if (dataoffset < 0)
1373	dataoffset += svlen;	1537	dataoffset += svlen;
1374		1538
1375	if (dataoffset < 0 || dataoffset > svlen)	1539	if (dataoffset < 0 || dataoffset > svlen)
1376	croak ("data offset outside of string");	1540	croak ("dataoffset outside of data scalar");
1377		1541
1378	if (ix == REQ_WRITE)	1542	if (ix == REQ_WRITE)
1379	{	1543	{
1380	/* write: check length and adjust. */	1544	/* write: check length and adjust. */
1381	if (length < 0 || length + dataoffset > svlen)	1545	if (!SvOK (length) || len + dataoffset > svlen)
1382	length = svlen - dataoffset;	1546	len = svlen - dataoffset;
1383	}	1547	}
1384	else	1548	else
1385	{	1549	{
1386	/* read: grow scalar as necessary */	1550	/* read: grow scalar as necessary */
1387	svptr = SvGROW (data, length + dataoffset);	1551	svptr = SvGROW (data, len + dataoffset + 1);
1388	}	1552	}
1389		1553
1390	if (length < 0)	1554	if (len < 0)
1391	croak ("length must not be negative");	1555	croak ("length must not be negative");
1392		1556
1393	{	1557	{
1394	dREQ;	1558	dREQ;
1395		1559
1396	req->type = ix;	1560	req->type = ix;
1397	req->fh = newSVsv (fh);	1561	req->sv1 = newSVsv (fh);
1398	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1562	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1399	: IoOFP (sv_2io (fh)));	1563	: IoOFP (sv_2io (fh)));
1400	req->offs = offset;	1564	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1401	req->size = length;	1565	req->size = len;
1402	req->sv1 = SvREFCNT_inc (data);	1566	req->sv2 = SvREFCNT_inc (data);
1403	req->ptr1 = (char *)svptr + dataoffset;	1567	req->ptr1 = (char *)svptr + dataoffset;
1404	req->stroffset = dataoffset;	1568	req->stroffset = dataoffset;
1405		1569
1406	if (!SvREADONLY (data))	1570	if (!SvREADONLY (data))
1407	{	1571	{
1408	SvREADONLY_on (data);	1572	SvREADONLY_on (data);
1409	req->flags |= FLAG_SV1_RO_OFF;	1573	req->flags |= FLAG_SV2_RO_OFF;
1410	}	1574	}
1411		1575
1412	REQ_SEND;	1576	REQ_SEND;
1413	}	1577	}
1414	}	1578	}
1415		1579
1416	void	1580	void
1417	aio_readlink (path,callback=&PL_sv_undef)	1581	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1418	SV * path
1419	SV * callback
1420	PROTOTYPE: $$;$	1582	PROTOTYPE: $$;$
1421	PPCODE:	1583	PPCODE:
1422	{	1584	{
1423	SV *data;	1585	SV *data;
1424	dREQ;	1586	dREQ;
1425		1587
1426	data = newSV (NAME_MAX);	1588	data = newSV (NAME_MAX);
1427	SvPOK_on (data);	1589	SvPOK_on (data);
1428		1590
1429	req->type = REQ_READLINK;	1591	req->type = REQ_READLINK;
1430	req->fh = newSVsv (path);	1592	req->sv1 = newSVsv (path);
1431	req->ptr2 = SvPVbyte_nolen (path);	1593	req->ptr2 = SvPVbyte_nolen (req->sv1);
1432	req->sv1 = data;	1594	req->sv2 = data;
1433	req->ptr1 = SvPVbyte_nolen (data);	1595	req->ptr1 = SvPVbyte_nolen (data);
1434		1596
1435	REQ_SEND;	1597	REQ_SEND;
1436	}	1598	}
1437		1599
1438	void	1600	void
1439	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1601	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1440	SV * out_fh
1441	SV * in_fh
1442	UV in_offset
1443	UV length
1444	SV * callback
1445	PROTOTYPE: $$$$;$	1602	PROTOTYPE: $$$$;$
1446	PPCODE:	1603	PPCODE:
1447	{	1604	{
1448	dREQ;	1605	dREQ;
1449		1606
1450	req->type = REQ_SENDFILE;	1607	req->type = REQ_SENDFILE;
1451	req->fh = newSVsv (out_fh);	1608	req->sv1 = newSVsv (out_fh);
1452	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1609	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1453	req->sv2 = newSVsv (in_fh);	1610	req->sv2 = newSVsv (in_fh);
1454	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1611	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1455	req->offs = in_offset;	1612	req->offs = SvVAL64 (in_offset);
1456	req->size = length;	1613	req->size = length;
1457		1614
1458	REQ_SEND;	1615	REQ_SEND;
1459	}	1616	}
1460		1617
1461	void	1618	void
1462	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1619	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1463	SV * fh
1464	UV offset
1465	IV length
1466	SV * callback
1467	PROTOTYPE: $$$;$	1620	PROTOTYPE: $$$;$
1468	PPCODE:	1621	PPCODE:
1469	{	1622	{
1470	dREQ;	1623	dREQ;
1471		1624
1472	req->type = REQ_READAHEAD;	1625	req->type = REQ_READAHEAD;
1473	req->fh = newSVsv (fh);	1626	req->sv1 = newSVsv (fh);
1474	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1627	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1475	req->offs = offset;	1628	req->offs = SvVAL64 (offset);
1476	req->size = length;	1629	req->size = length;
1477		1630
1478	REQ_SEND;	1631	REQ_SEND;
1479	}	1632	}
1480		1633
1481	void	1634	void
1482	aio_stat (fh_or_path,callback=&PL_sv_undef)	1635	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1483	SV * fh_or_path
1484	SV * callback
1485	ALIAS:	1636	ALIAS:
1486	aio_stat = REQ_STAT	1637	aio_stat = REQ_STAT
1487	aio_lstat = REQ_LSTAT	1638	aio_lstat = REQ_LSTAT
1488	PPCODE:	1639	PPCODE:
1489	{	1640	{
1490	dREQ;	1641	dREQ;
1491		1642
1492	req->ptr2 = malloc (sizeof (Stat_t));	1643	req->ptr2 = malloc (sizeof (Stat_t));
1493	if (!req->ptr2)	1644	if (!req->ptr2)
1494	{	1645	{
1495	req_free (req);	1646	req_destroy (req);
1496	croak ("out of memory during aio_req statdata allocation");	1647	croak ("out of memory during aio_stat statdata allocation");
1497	}	1648	}
1498		1649
1499	req->flags |= FLAG_PTR2_FREE;	1650	req->flags |= FLAG_PTR2_FREE;
		1651	req->sv1 = newSVsv (fh_or_path);
1500		1652
1501	if (SvPOK (fh_or_path))	1653	if (SvPOK (fh_or_path))
1502	{	1654	{
1503	req->type = ix;	1655	req->type = ix;
1504	req->sv1 = newSVsv (fh_or_path);
1505	req->ptr1 = SvPVbyte_nolen (fh_or_path);	1656	req->ptr1 = SvPVbyte_nolen (req->sv1);
1506	}	1657	}
1507	else	1658	else
1508	{	1659	{
1509	req->type = REQ_FSTAT;	1660	req->type = REQ_FSTAT;
1510	req->fh = newSVsv (fh_or_path);
1511	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1661	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512	}	1662	}
1513		1663
1514	REQ_SEND;	1664	REQ_SEND;
1515	}	1665	}
1516		1666
1517	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
1518	aio_unlink (pathname,callback=&PL_sv_undef)	1762	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1519	SV * pathname
1520	SV * callback
1521	ALIAS:	1763	ALIAS:
1522	aio_unlink = REQ_UNLINK	1764	aio_unlink = REQ_UNLINK
1523	aio_rmdir = REQ_RMDIR	1765	aio_rmdir = REQ_RMDIR
1524	aio_readdir = REQ_READDIR	1766	aio_readdir = REQ_READDIR
1525	PPCODE:	1767	PPCODE:
1526	{	1768	{
1527	dREQ;	1769	dREQ;
1528		1770
1529	req->type = ix;	1771	req->type = ix;
1530	req->sv1 = newSVsv (pathname);	1772	req->sv1 = newSVsv (pathname);
1531	req->ptr1 = SvPVbyte_nolen (pathname);	1773	req->ptr1 = SvPVbyte_nolen (req->sv1);
1532		1774
1533	REQ_SEND;	1775	REQ_SEND;
1534	}	1776	}
1535		1777
1536	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
1537	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1793	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1538	SV * oldpath
1539	SV * newpath
1540	SV * callback
1541	ALIAS:	1794	ALIAS:
1542	aio_link = REQ_LINK	1795	aio_link = REQ_LINK
1543	aio_symlink = REQ_SYMLINK	1796	aio_symlink = REQ_SYMLINK
1544	aio_rename = REQ_RENAME	1797	aio_rename = REQ_RENAME
1545	PPCODE:	1798	PPCODE:
1546	{	1799	{
1547	dREQ;	1800	dREQ;
1548		1801
1549	req->type = ix;	1802	req->type = ix;
1550	req->fh = newSVsv (oldpath);	1803	req->sv2 = newSVsv (oldpath);
1551	req->ptr2 = SvPVbyte_nolen (req->fh);	1804	req->ptr2 = SvPVbyte_nolen (req->sv2);
1552	req->sv1 = newSVsv (newpath);	1805	req->sv1 = newSVsv (newpath);
1553	req->ptr1 = SvPVbyte_nolen (newpath);	1806	req->ptr1 = SvPVbyte_nolen (req->sv1);
1554		1807
1555	REQ_SEND;	1808	REQ_SEND;
1556	}	1809	}
1557		1810
1558	void	1811	void
1559	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1812	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:	1813	PPCODE:
1565	{	1814	{
1566	dREQ;	1815	dREQ;
1567		1816
1568	req->type = REQ_MKNOD;	1817	req->type = REQ_MKNOD;
1569	req->sv1 = newSVsv (pathname);	1818	req->sv1 = newSVsv (pathname);
1570	req->ptr1 = SvPVbyte_nolen (pathname);	1819	req->ptr1 = SvPVbyte_nolen (req->sv1);
1571	req->mode = (mode_t)mode;	1820	req->mode = (mode_t)mode;
1572	req->offs = dev;	1821	req->offs = dev;
1573		1822
1574	REQ_SEND;	1823	REQ_SEND;
1575	}	1824	}
1576		1825
1577	void	1826	void
1578	aio_busy (delay,callback=&PL_sv_undef)	1827	aio_busy (double delay, SV *callback=&PL_sv_undef)
1579	double delay
1580	SV * callback
1581	PPCODE:	1828	PPCODE:
1582	{	1829	{
1583	dREQ;	1830	dREQ;
1584		1831
1585	req->type = REQ_BUSY;	1832	req->type = REQ_BUSY;
1586	req->int1 = delay < 0. ? 0 : delay;	1833	req->nv1 = delay < 0. ? 0. : delay;
1587	req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1588		1834
1589	REQ_SEND;	1835	REQ_SEND;
1590	}	1836	}
1591		1837
1592	void	1838	void
1593	aio_group (callback=&PL_sv_undef)	1839	aio_group (SV *callback=&PL_sv_undef)
1594	SV * callback
1595	PROTOTYPE: ;$	1840	PROTOTYPE: ;$
1596	PPCODE:	1841	PPCODE:
1597	{	1842	{
1598	dREQ;	1843	dREQ;
1599		1844
…		…
1602	req_send (req);	1847	req_send (req);
1603	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1848	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1604	}	1849	}
1605		1850
1606	void	1851	void
1607	aio_nop (callback=&PL_sv_undef)	1852	aio_nop (SV *callback=&PL_sv_undef)
1608	SV * callback
1609	PPCODE:	1853	PPCODE:
1610	{	1854	{
1611	dREQ;	1855	dREQ;
1612		1856
1613	req->type = REQ_NOP;	1857	req->type = REQ_NOP;
…		…
1642	PROTOTYPE:	1886	PROTOTYPE:
1643	CODE:	1887	CODE:
1644	while (nreqs)	1888	while (nreqs)
1645	{	1889	{
1646	poll_wait ();	1890	poll_wait ();
1647	poll_cb (0);	1891	poll_cb ();
1648	}	1892	}
1649		1893
1650	void	1894	int
1651	poll()	1895	poll()
1652	PROTOTYPE:	1896	PROTOTYPE:
1653	CODE:	1897	CODE:
1654	if (nreqs)
1655	{
1656	poll_wait ();	1898	poll_wait ();
1657	poll_cb (0);	1899	RETVAL = poll_cb ();
1658	}	1900	OUTPUT:
		1901	RETVAL
1659		1902
1660	int	1903	int
1661	poll_fileno()	1904	poll_fileno()
1662	PROTOTYPE:	1905	PROTOTYPE:
1663	CODE:	1906	CODE:
…		…
1675		1918
1676	void	1919	void
1677	poll_wait()	1920	poll_wait()
1678	PROTOTYPE:	1921	PROTOTYPE:
1679	CODE:	1922	CODE:
1680	if (nreqs)
1681	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	}
1682		1961
1683	int	1962	int
1684	nreqs()	1963	nreqs()
1685	PROTOTYPE:	1964	PROTOTYPE:
1686	CODE:	1965	CODE:
…		…
1706		1985
1707	int	1986	int
1708	nthreads()	1987	nthreads()
1709	PROTOTYPE:	1988	PROTOTYPE:
1710	CODE:	1989	CODE:
1711	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1990	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1712	RETVAL = started;	1991	RETVAL = started;
1713	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1992	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1714	OUTPUT:	1993	OUTPUT:
1715	RETVAL	1994	RETVAL
1716		1995
1717	PROTOTYPES: DISABLE	1996	PROTOTYPES: DISABLE
1718		1997
…		…
1736	PPCODE:	2015	PPCODE:
1737	{	2016	{
1738	int i;	2017	int i;
1739	aio_req req;	2018	aio_req req;
1740		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
1741	if (grp->int1 == 2)	2023	if (grp->int1 == 2)
1742	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");
1743		2025
1744	for (i = 1; i < items; ++i )	2026	for (i = 1; i < items; ++i )
1745	{	2027	{

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