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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.77 by root, Thu Oct 26 13:25:40 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
…		…
43	# else	79	# else
44	# error sendfile support requested but not available	80	# error sendfile support requested but not available
45	# endif	81	# endif
46	#endif	82	#endif
47		83
		84	/* number of seconds after which idle threads exit */
		85	#define IDLE_TIMEOUT 10
		86
48	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
49	#ifndef NAME_MAX	88	#ifndef NAME_MAX
50	# define NAME_MAX 4096	89	# define NAME_MAX 4096
51	#endif	90	#endif
52		91
53	#ifndef PTHREAD_STACK_MIN
54	/* care for broken platforms, e.g. windows */
55	# define PTHREAD_STACK_MIN 16384
56	#endif
57
58	#if __ia64
59	# define STACKSIZE 65536
60	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61	# define STACKSIZE PTHREAD_STACK_MIN
62	#else
63	# define STACKSIZE 16384
64	#endif
65
66	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
67	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
68		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
69	#define dBUF \	102	#define dBUF \
70	char *aio_buf; \	103	char *aio_buf; \
71	LOCK (wrklock); \	104	X_LOCK (wrklock); \
72	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	105	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
73	UNLOCK (wrklock); \	106	X_UNLOCK (wrklock); \
74	if (!aio_buf) \	107	if (!aio_buf) \
75	return -1;	108	return -1;
		109
		110	typedef SV SV8; /* byte-sv, used for argument-checking */
76		111
77	enum {	112	enum {
78	REQ_QUIT,	113	REQ_QUIT,
79	REQ_OPEN, REQ_CLOSE,	114	REQ_OPEN, REQ_CLOSE,
80	REQ_READ, REQ_WRITE, REQ_READAHEAD,	115	REQ_READ, REQ_WRITE,
81	REQ_SENDFILE,	116	REQ_READAHEAD, REQ_SENDFILE,
82	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,
83	REQ_FSYNC, REQ_FDATASYNC,	122	REQ_FSYNC, REQ_FDATASYNC,
84	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	123	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
85	REQ_READDIR,	124	REQ_MKNOD, REQ_READDIR,
86	REQ_LINK, REQ_SYMLINK,	125	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
87	REQ_GROUP, REQ_NOP,	126	REQ_GROUP, REQ_NOP,
88	REQ_BUSY,	127	REQ_BUSY,
89	};	128	};
90		129
91	#define AIO_REQ_KLASS "IO::AIO::REQ"	130	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
93		132
94	typedef struct aio_cb	133	typedef struct aio_cb
95	{	134	{
96	struct aio_cb *volatile next;	135	struct aio_cb *volatile next;
97		136
98	SV *data, *callback;	137	SV *callback;
99	SV *fh, *fh2;	138	SV *sv1, *sv2;
100	void *dataptr, *data2ptr;	139	void *ptr1, *ptr2;
101	Stat_t *statdata;
102	off_t offset;	140	off_t offs;
103	size_t length;	141	size_t size;
104	ssize_t result;	142	ssize_t result;
		143	double nv1, nv2;
105		144
106	STRLEN dataoffset;	145	STRLEN stroffset;
107	int type;	146	int type;
108	int fd, fd2;	147	int int1, int2, int3;
109	int errorno;	148	int errorno;
110	mode_t mode; /* open */	149	mode_t mode; /* open */
111		150
112	unsigned char flags;	151	unsigned char flags;
113	unsigned char pri;	152	unsigned char pri;
…		…
115	SV *self; /* the perl counterpart of this request, if any */	154	SV *self; /* the perl counterpart of this request, if any */
116	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	155	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
117	} aio_cb;	156	} aio_cb;
118		157
119	enum {	158	enum {
120	FLAG_CANCELLED = 0x01,	159	FLAG_CANCELLED = 0x01, /* request was cancelled */
		160	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		161	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
121	};	162	};
122		163
123	typedef aio_cb *aio_req;	164	typedef aio_cb *aio_req;
124	typedef aio_cb *aio_req_ornot;	165	typedef aio_cb *aio_req_ornot;
125		166
…		…
130	DEFAULT_PRI = 0,	171	DEFAULT_PRI = 0,
131	PRI_BIAS = -PRI_MIN,	172	PRI_BIAS = -PRI_MIN,
132	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	173	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133	};	174	};
134		175
		176	#define AIO_TICKS ((1000000 + 1023) >> 10)
		177
		178	static unsigned int max_poll_time = 0;
		179	static unsigned int max_poll_reqs = 0;
		180
		181	/* calculcate time difference in ~1/AIO_TICKS of a second */
		182	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		183	{
		184	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		185	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		186	}
		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
135	static int next_pri = DEFAULT_PRI + PRI_BIAS;	222	static int next_pri = DEFAULT_PRI + PRI_BIAS;
136		223
137	static int started, wanted;	224	static unsigned int started, idle, wanted;
138	static volatile int nreqs;
139	static int respipe [2];
140
141	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143	#else
144	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145	#endif
146
147	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149		225
150	/* worker threads management */	226	/* worker threads management */
151	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	227	static mutex_t wrklock = X_MUTEX_INIT;
152		228
153	typedef struct worker {	229	typedef struct worker {
154	/* locked by wrklock */	230	/* locked by wrklock */
155	struct worker *prev, *next;	231	struct worker *prev, *next;
156		232
157	pthread_t tid;	233	thread_t tid;
158		234
159	/* locked by reslock, reqlock or wrklock */	235	/* locked by reslock, reqlock or wrklock */
160	aio_req req; /* currently processed request */	236	aio_req req; /* currently processed request */
161	void *dbuf;	237	void *dbuf;
162	DIR *dirp;	238	DIR *dirp;
…		…
185	wrk->prev->next = wrk->next;	261	wrk->prev->next = wrk->next;
186		262
187	free (wrk);	263	free (wrk);
188	}	264	}
189		265
		266	static volatile unsigned int nreqs, nready, npending;
		267	static volatile unsigned int max_idle = 4;
		268	static volatile unsigned int max_outstanding = 0xffffffff;
		269	static int respipe_osf [2], respipe [2] = { -1, -1 };
		270
190	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	271	static mutex_t reslock = X_MUTEX_INIT;
191	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	272	static mutex_t reqlock = X_MUTEX_INIT;
192	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	273	static cond_t reqwait = X_COND_INIT;
		274
		275	#if WORDACCESS_UNSAFE
		276
		277	static unsigned int get_nready ()
		278	{
		279	unsigned int retval;
		280
		281	X_LOCK (reqlock);
		282	retval = nready;
		283	X_UNLOCK (reqlock);
		284
		285	return retval;
		286	}
		287
		288	static unsigned int get_npending ()
		289	{
		290	unsigned int retval;
		291
		292	X_LOCK (reslock);
		293	retval = npending;
		294	X_UNLOCK (reslock);
		295
		296	return retval;
		297	}
		298
		299	static unsigned int get_nthreads ()
		300	{
		301	unsigned int retval;
		302
		303	X_LOCK (wrklock);
		304	retval = started;
		305	X_UNLOCK (wrklock);
		306
		307	return retval;
		308	}
		309
		310	#else
		311
		312	# define get_nready() nready
		313	# define get_npending() npending
		314	# define get_nthreads() started
		315
		316	#endif
193		317
194	/*	318	/*
195	* a somewhat faster data structure might be nice, but	319	* a somewhat faster data structure might be nice, but
196	* with 8 priorities this actually needs <20 insns	320	* with 8 priorities this actually needs <20 insns
197	* per shift, the most expensive operation.	321	* per shift, the most expensive operation.
…		…
243	}	367	}
244		368
245	abort ();	369	abort ();
246	}	370	}
247		371
248	static int poll_cb (int max);	372	static int poll_cb ();
249	static void req_invoke (aio_req req);	373	static int req_invoke (aio_req req);
250	static void req_free (aio_req req);	374	static void req_destroy (aio_req req);
251	static void req_cancel (aio_req req);	375	static void req_cancel (aio_req req);
252		376
253	/* must be called at most once */	377	/* must be called at most once */
254	static SV *req_sv (aio_req req, const char *klass)	378	static SV *req_sv (aio_req req, const char *klass)
255	{	379	{
…		…
274	return mg ? (aio_req)mg->mg_ptr : 0;	398	return mg ? (aio_req)mg->mg_ptr : 0;
275	}	399	}
276		400
277	static void aio_grp_feed (aio_req grp)	401	static void aio_grp_feed (aio_req grp)
278	{	402	{
		403	block_sig ();
		404
279	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	405	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
280	{	406	{
281	int old_len = grp->length;	407	int old_len = grp->size;
282		408
283	if (grp->fh2 && SvOK (grp->fh2))	409	if (grp->sv2 && SvOK (grp->sv2))
284	{	410	{
285	dSP;	411	dSP;
286		412
287	ENTER;	413	ENTER;
288	SAVETMPS;	414	SAVETMPS;
289	PUSHMARK (SP);	415	PUSHMARK (SP);
290	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	416	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
291	PUTBACK;	417	PUTBACK;
292	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	418	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293	SPAGAIN;	419	SPAGAIN;
294	FREETMPS;	420	FREETMPS;
295	LEAVE;	421	LEAVE;
296	}	422	}
297		423
298	/* stop if no progress has been made */	424	/* stop if no progress has been made */
299	if (old_len == grp->length)	425	if (old_len == grp->size)
300	{	426	{
301	SvREFCNT_dec (grp->fh2);	427	SvREFCNT_dec (grp->sv2);
302	grp->fh2 = 0;	428	grp->sv2 = 0;
303	break;	429	break;
304	}	430	}
305	}	431	}
		432
		433	unblock_sig ();
306	}	434	}
307		435
308	static void aio_grp_dec (aio_req grp)	436	static void aio_grp_dec (aio_req grp)
309	{	437	{
310	--grp->length;	438	--grp->size;
311		439
312	/* call feeder, if applicable */	440	/* call feeder, if applicable */
313	aio_grp_feed (grp);	441	aio_grp_feed (grp);
314		442
315	/* finish, if done */	443	/* finish, if done */
316	if (!grp->length && grp->fd)	444	if (!grp->size && grp->int1)
317	{	445	{
		446	block_sig ();
		447
318	req_invoke (grp);	448	if (!req_invoke (grp))
		449	{
		450	req_destroy (grp);
		451	unblock_sig ();
		452	croak (0);
		453	}
		454
319	req_free (grp);	455	req_destroy (grp);
		456	unblock_sig ();
320	}	457	}
321	}	458	}
322		459
323	static void poll_wait ()
324	{
325	fd_set rfd;
326
327	while (nreqs)
328	{
329	int size;
330	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
331	LOCK (reslock);
332	#endif
333	size = res_queue.size;
334	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
335	UNLOCK (reslock);
336	#endif
337
338	if (size)
339	return;
340
341	FD_ZERO(&rfd);
342	FD_SET(respipe [0], &rfd);
343
344	select (respipe [0] + 1, &rfd, 0, 0, 0);
345	}
346	}
347
348	static void req_invoke (aio_req req)	460	static int req_invoke (aio_req req)
349	{	461	{
350	dSP;	462	dSP;
		463
		464	if (req->flags & FLAG_SV2_RO_OFF)
		465	SvREADONLY_off (req->sv2);
351		466
352	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	467	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
353	{	468	{
354	errno = req->errorno;
355
356	ENTER;	469	ENTER;
357	SAVETMPS;	470	SAVETMPS;
358	PUSHMARK (SP);	471	PUSHMARK (SP);
359	EXTEND (SP, 1);	472	EXTEND (SP, 1);
360		473
…		…
365	SV *rv = &PL_sv_undef;	478	SV *rv = &PL_sv_undef;
366		479
367	if (req->result >= 0)	480	if (req->result >= 0)
368	{	481	{
369	int i;	482	int i;
370	char *buf = req->data2ptr;	483	char *buf = req->ptr2;
371	AV *av = newAV ();	484	AV *av = newAV ();
372		485
373	av_extend (av, req->result - 1);	486	av_extend (av, req->result - 1);
374		487
375	for (i = 0; i < req->result; ++i)	488	for (i = 0; i < req->result; ++i)
…		…
395	PUSHs (sv_2mortal (newSViv (req->result)));	508	PUSHs (sv_2mortal (newSViv (req->result)));
396	PUTBACK;	509	PUTBACK;
397	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	510	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
398	SPAGAIN;	511	SPAGAIN;
399		512
400	fh = SvREFCNT_inc (POPs);	513	fh = POPs;
401
402	PUSHMARK (SP);	514	PUSHMARK (SP);
403	XPUSHs (sv_2mortal (fh));	515	XPUSHs (fh);
404	}	516	}
405	break;	517	break;
406		518
407	case REQ_GROUP:	519	case REQ_GROUP:
408	req->fd = 2; /* mark group as finished */	520	req->int1 = 2; /* mark group as finished */
409		521
410	if (req->data)	522	if (req->sv1)
411	{	523	{
412	int i;	524	int i;
413	AV *av = (AV *)req->data;	525	AV *av = (AV *)req->sv1;
414		526
415	EXTEND (SP, AvFILL (av) + 1);	527	EXTEND (SP, AvFILL (av) + 1);
416	for (i = 0; i <= AvFILL (av); ++i)	528	for (i = 0; i <= AvFILL (av); ++i)
417	PUSHs (*av_fetch (av, i, 0));	529	PUSHs (*av_fetch (av, i, 0));
418	}	530	}
…		…
420		532
421	case REQ_NOP:	533	case REQ_NOP:
422	case REQ_BUSY:	534	case REQ_BUSY:
423	break;	535	break;
424		536
		537	case REQ_READLINK:
		538	if (req->result > 0)
		539	{
		540	SvCUR_set (req->sv2, req->result);
		541	*SvEND (req->sv2) = 0;
		542	PUSHs (req->sv2);
		543	}
		544	break;
		545
		546	case REQ_STAT:
		547	case REQ_LSTAT:
		548	case REQ_FSTAT:
		549	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		550	PL_laststatval = req->result;
		551	PL_statcache = *(Stat_t *)(req->ptr2);
		552	PUSHs (sv_2mortal (newSViv (req->result)));
		553	break;
		554
		555	case REQ_READ:
		556	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		557	*SvEND (req->sv2) = 0;
		558	PUSHs (sv_2mortal (newSViv (req->result)));
		559	break;
		560
425	default:	561	default:
426	PUSHs (sv_2mortal (newSViv (req->result)));	562	PUSHs (sv_2mortal (newSViv (req->result)));
427	break;	563	break;
428	}	564	}
429		565
		566	errno = req->errorno;
430		567
431	PUTBACK;	568	PUTBACK;
432	call_sv (req->callback, G_VOID | G_EVAL);	569	call_sv (req->callback, G_VOID | G_EVAL);
433	SPAGAIN;	570	SPAGAIN;
434		571
…		…
448	grp->grp_first = req->grp_next;	585	grp->grp_first = req->grp_next;
449		586
450	aio_grp_dec (grp);	587	aio_grp_dec (grp);
451	}	588	}
452		589
453	if (SvTRUE (ERRSV))	590	return !SvTRUE (ERRSV);
454	{
455	req_free (req);
456	croak (0);
457	}
458	}	591	}
459		592
460	static void req_free (aio_req req)	593	static void req_destroy (aio_req req)
461	{	594	{
462	if (req->self)	595	if (req->self)
463	{	596	{
464	sv_unmagic (req->self, PERL_MAGIC_ext);	597	sv_unmagic (req->self, PERL_MAGIC_ext);
465	SvREFCNT_dec (req->self);	598	SvREFCNT_dec (req->self);
466	}	599	}
467		600
468	SvREFCNT_dec (req->data);
469	SvREFCNT_dec (req->fh);	601	SvREFCNT_dec (req->sv1);
470	SvREFCNT_dec (req->fh2);	602	SvREFCNT_dec (req->sv2);
471	SvREFCNT_dec (req->callback);	603	SvREFCNT_dec (req->callback);
472	Safefree (req->statdata);
473		604
474	if (req->type == REQ_READDIR)	605	if (req->flags & FLAG_PTR2_FREE)
475	free (req->data2ptr);	606	free (req->ptr2);
476		607
477	Safefree (req);	608	Safefree (req);
478	}	609	}
479		610
480	static void req_cancel_subs (aio_req grp)	611	static void req_cancel_subs (aio_req grp)
…		…
482	aio_req sub;	613	aio_req sub;
483		614
484	if (grp->type != REQ_GROUP)	615	if (grp->type != REQ_GROUP)
485	return;	616	return;
486		617
487	SvREFCNT_dec (grp->fh2);	618	SvREFCNT_dec (grp->sv2);
488	grp->fh2 = 0;	619	grp->sv2 = 0;
489		620
490	for (sub = grp->grp_first; sub; sub = sub->grp_next)	621	for (sub = grp->grp_first; sub; sub = sub->grp_next)
491	req_cancel (sub);	622	req_cancel (sub);
492	}	623	}
493		624
…		…
496	req->flags |= FLAG_CANCELLED;	627	req->flags |= FLAG_CANCELLED;
497		628
498	req_cancel_subs (req);	629	req_cancel_subs (req);
499	}	630	}
500		631
501	static int poll_cb (int max)	632	#ifdef USE_SOCKETS_AS_HANDLES
502	{	633	# define TO_SOCKET(x) (win32_get_osfhandle (x))
503	dSP;	634	#else
504	int count = 0;	635	# define TO_SOCKET(x) (x)
505	int do_croak = 0;	636	#endif
506	aio_req req;
507		637
508	while (max <= 0 || count < max)	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)
509	{	654	{
510	LOCK (reslock);	655	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
511	req = reqq_shift (&res_queue);	656	croak ("unable to initialize result pipe(2)");
512		657
513	if (req)	658	respipe_close (respipe [0]);
514	{	659	respipe [0] = old_readfd;
515	if (!res_queue.size)
516	{
517	/* read any signals sent by the worker threads */
518	char buf [32];
519	while (read (respipe [0], buf, 32) == 32)
520	;
521	}
522	}
523
524	UNLOCK (reslock);
525
526	if (!req)
527	break;
528
529	--nreqs;
530
531	if (req->type == REQ_QUIT)
532	started--;
533	else if (req->type == REQ_GROUP && req->length)
534	{
535	req->fd = 1; /* mark request as delayed */
536	continue;
537	}
538	else
539	{
540	if (req->type == REQ_READ)
541	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
542
543	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
544	SvREADONLY_off (req->data);
545
546	if (req->statdata)
547	{
548	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
549	PL_laststatval = req->result;
550	PL_statcache = *(req->statdata);
551	}
552
553	req_invoke (req);
554
555	count++;
556	}
557
558	req_free (req);
559	}	660	}
560		661
561	return count;	662	#ifdef _WIN32
562	}	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)");
563		671
564	static void *aio_proc(void *arg);	672	respipe_osf [0] = TO_SOCKET (respipe [0]);
		673	respipe_osf [1] = TO_SOCKET (respipe [1]);
		674	}
		675
		676	X_THREAD_PROC (aio_proc);
565		677
566	static void start_thread (void)	678	static void start_thread (void)
567	{	679	{
568	sigset_t fullsigset, oldsigset;
569	pthread_attr_t attr;
570
571	worker *wrk = calloc (1, sizeof (worker));	680	worker *wrk = calloc (1, sizeof (worker));
572		681
573	if (!wrk)	682	if (!wrk)
574	croak ("unable to allocate worker thread data");	683	croak ("unable to allocate worker thread data");
575		684
576	pthread_attr_init (&attr);
577	pthread_attr_setstacksize (&attr, STACKSIZE);
578	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
579
580	sigfillset (&fullsigset);
581
582	LOCK (wrklock);	685	X_LOCK (wrklock);
583	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
584		686
585	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	687	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
586	{	688	{
587	wrk->prev = &wrk_first;	689	wrk->prev = &wrk_first;
588	wrk->next = wrk_first.next;	690	wrk->next = wrk_first.next;
589	wrk_first.next->prev = wrk;	691	wrk_first.next->prev = wrk;
590	wrk_first.next = wrk;	692	wrk_first.next = wrk;
591	started++;	693	++started;
592	}	694	}
593	else	695	else
594	free (wrk);	696	free (wrk);
595		697
596	sigprocmask (SIG_SETMASK, &oldsigset, 0);
597	UNLOCK (wrklock);	698	X_UNLOCK (wrklock);
		699	}
		700
		701	static void maybe_start_thread ()
		702	{
		703	if (get_nthreads () >= wanted)
		704	return;
		705
		706	/* todo: maybe use idle here, but might be less exact */
		707	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		708	return;
		709
		710	start_thread ();
598	}	711	}
599		712
600	static void req_send (aio_req req)	713	static void req_send (aio_req req)
601	{	714	{
602	while (started < wanted && nreqs >= started)	715	block_sig ();
603	start_thread ();
604		716
605	++nreqs;	717	++nreqs;
606		718
607	LOCK (reqlock);	719	X_LOCK (reqlock);
		720	++nready;
608	reqq_push (&req_queue, req);	721	reqq_push (&req_queue, req);
609	pthread_cond_signal (&reqwait);	722	X_COND_SIGNAL (reqwait);
610	UNLOCK (reqlock);	723	X_UNLOCK (reqlock);
		724
		725	unblock_sig ();
		726
		727	maybe_start_thread ();
611	}	728	}
612		729
613	static void end_thread (void)	730	static void end_thread (void)
614	{	731	{
615	aio_req req;	732	aio_req req;
…		…
617	Newz (0, req, 1, aio_cb);	734	Newz (0, req, 1, aio_cb);
618		735
619	req->type = REQ_QUIT;	736	req->type = REQ_QUIT;
620	req->pri = PRI_MAX + PRI_BIAS;	737	req->pri = PRI_MAX + PRI_BIAS;
621		738
622	req_send (req);	739	X_LOCK (reqlock);
		740	reqq_push (&req_queue, req);
		741	X_COND_SIGNAL (reqwait);
		742	X_UNLOCK (reqlock);
		743
		744	X_LOCK (wrklock);
		745	--started;
		746	X_UNLOCK (wrklock);
		747	}
		748
		749	static void set_max_idle (int nthreads)
		750	{
		751	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		752	max_idle = nthreads <= 0 ? 1 : nthreads;
		753	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
623	}	754	}
624		755
625	static void min_parallel (int nthreads)	756	static void min_parallel (int nthreads)
626	{	757	{
627	if (wanted < nthreads)	758	if (wanted < nthreads)
628	wanted = nthreads;	759	wanted = nthreads;
629	}	760	}
630		761
631	static void max_parallel (int nthreads)	762	static void max_parallel (int nthreads)
632	{	763	{
633	int cur = started;
634
635	if (wanted > nthreads)	764	if (wanted > nthreads)
636	wanted = nthreads;	765	wanted = nthreads;
637		766
638	while (cur > wanted)	767	while (started > wanted)
		768	end_thread ();
		769	}
		770
		771	static void poll_wait ()
		772	{
		773	fd_set rfd;
		774
		775	while (nreqs)
639	{	776	{
		777	int size;
		778	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		779	size = res_queue.size;
		780	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		781
		782	if (size)
		783	return;
		784
640	end_thread ();	785	maybe_start_thread ();
641	cur--;	786
		787	FD_ZERO (&rfd);
		788	FD_SET (respipe [0], &rfd);
		789
		790	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
642	}	791	}
		792	}
643		793
644	while (started > wanted)	794	static int poll_cb ()
		795	{
		796	dSP;
		797	int count = 0;
		798	int maxreqs = max_poll_reqs;
		799	int do_croak = 0;
		800	struct timeval tv_start, tv_now;
		801	aio_req req;
		802
		803	if (max_poll_time)
		804	gettimeofday (&tv_start, 0);
		805
		806	block_sig ();
		807
		808	for (;;)
645	{	809	{
		810	for (;;)
		811	{
		812	maybe_start_thread ();
		813
		814	X_LOCK (reslock);
		815	req = reqq_shift (&res_queue);
		816
		817	if (req)
		818	{
		819	--npending;
		820
		821	if (!res_queue.size)
		822	{
		823	/* read any signals sent by the worker threads */
		824	char buf [4];
		825	while (respipe_read (respipe [0], buf, 4) == 4)
		826	;
		827	}
		828	}
		829
		830	X_UNLOCK (reslock);
		831
		832	if (!req)
		833	break;
		834
		835	--nreqs;
		836
		837	if (req->type == REQ_GROUP && req->size)
		838	{
		839	req->int1 = 1; /* mark request as delayed */
		840	continue;
		841	}
		842	else
		843	{
		844	if (!req_invoke (req))
		845	{
		846	req_destroy (req);
		847	unblock_sig ();
		848	croak (0);
		849	}
		850
		851	count++;
		852	}
		853
		854	req_destroy (req);
		855
		856	if (maxreqs && !--maxreqs)
		857	break;
		858
		859	if (max_poll_time)
		860	{
		861	gettimeofday (&tv_now, 0);
		862
		863	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		864	break;
		865	}
		866	}
		867
		868	if (nreqs <= max_outstanding)
		869	break;
		870
646	poll_wait ();	871	poll_wait ();
647	poll_cb (0);	872
		873	++maxreqs;
648	}	874	}
649	}
650		875
651	static void create_pipe ()	876	unblock_sig ();
652	{	877	return count;
653	if (pipe (respipe))
654	croak ("unable to initialize result pipe");
655
656	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
657	croak ("cannot set result pipe to nonblocking mode");
658
659	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
660	croak ("cannot set result pipe to nonblocking mode");
661	}	878	}
662		879
663	/*****************************************************************************/	880	/*****************************************************************************/
664	/* work around various missing functions */	881	/* work around various missing functions */
665		882
…		…
670	/*	887	/*
671	* make our pread/pwrite safe against themselves, but not against	888	* make our pread/pwrite safe against themselves, but not against
672	* 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,
673	* but that's your problem, not mine.	890	* but that's your problem, not mine.
674	*/	891	*/
675	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	892	static mutex_t preadwritelock = X_MUTEX_INIT;
676		893
677	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)
678	{	895	{
679	ssize_t res;	896	ssize_t res;
680	off_t ooffset;	897	off_t ooffset;
681		898
682	LOCK (preadwritelock);	899	X_LOCK (preadwritelock);
683	ooffset = lseek (fd, 0, SEEK_CUR);	900	ooffset = lseek (fd, 0, SEEK_CUR);
684	lseek (fd, offset, SEEK_SET);	901	lseek (fd, offset, SEEK_SET);
685	res = read (fd, buf, count);	902	res = read (fd, buf, count);
686	lseek (fd, ooffset, SEEK_SET);	903	lseek (fd, ooffset, SEEK_SET);
687	UNLOCK (preadwritelock);	904	X_UNLOCK (preadwritelock);
688		905
689	return res;	906	return res;
690	}	907	}
691		908
692	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)
693	{	910	{
694	ssize_t res;	911	ssize_t res;
695	off_t ooffset;	912	off_t ooffset;
696		913
697	LOCK (preadwritelock);	914	X_LOCK (preadwritelock);
698	ooffset = lseek (fd, 0, SEEK_CUR);	915	ooffset = lseek (fd, 0, SEEK_CUR);
699	lseek (fd, offset, SEEK_SET);	916	lseek (fd, offset, SEEK_SET);
700	res = write (fd, buf, count);	917	res = write (fd, buf, count);
701	lseek (fd, offset, SEEK_SET);	918	lseek (fd, offset, SEEK_SET);
702	UNLOCK (preadwritelock);	919	X_UNLOCK (preadwritelock);
703		920
704	return res;	921	return res;
705	}	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
706	#endif	951	#endif
707		952
708	#if !HAVE_FDATASYNC	953	#if !HAVE_FDATASYNC
709	# define fdatasync fsync	954	# define fdatasync fsync
710	#endif	955	#endif
…		…
712	#if !HAVE_READAHEAD	957	#if !HAVE_READAHEAD
713	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	958	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
714		959
715	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)
716	{	961	{
		962	size_t todo = count;
717	dBUF;	963	dBUF;
718		964
719	while (count > 0)	965	while (todo > 0)
720	{	966	{
721	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	967	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
722		968
723	pread (fd, aio_buf, len, offset);	969	pread (fd, aio_buf, len, offset);
724	offset += len;	970	offset += len;
725	count -= len;	971	todo -= len;
726	}	972	}
727		973
728	errno = 0;	974	errno = 0;
		975	return count;
729	}	976	}
730		977
731	#endif	978	#endif
732		979
733	#if !HAVE_READDIR_R	980	#if !HAVE_READDIR_R
734	# define readdir_r aio_readdir_r	981	# define readdir_r aio_readdir_r
735		982
736	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	983	static mutex_t readdirlock = X_MUTEX_INIT;
737		984
738	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)
739	{	986	{
740	struct dirent *e;	987	X_DIRENT *e;
741	int errorno;	988	int errorno;
742		989
743	LOCK (readdirlock);	990	X_LOCK (readdirlock);
744		991
745	e = readdir (dirp);	992	e = readdir (dirp);
746	errorno = errno;	993	errorno = errno;
747		994
748	if (e)	995	if (e)
…		…
751	strcpy (ent->d_name, e->d_name);	998	strcpy (ent->d_name, e->d_name);
752	}	999	}
753	else	1000	else
754	*res = 0;	1001	*res = 0;
755		1002
756	UNLOCK (readdirlock);	1003	X_UNLOCK (readdirlock);
757		1004
758	errno = errorno;	1005	errno = errorno;
759	return e ? 0 : -1;	1006	return e ? 0 : -1;
760	}	1007	}
761	#endif	1008	#endif
…		…
857	static void scandir_ (aio_req req, worker *self)	1104	static void scandir_ (aio_req req, worker *self)
858	{	1105	{
859	DIR *dirp;	1106	DIR *dirp;
860	union	1107	union
861	{	1108	{
862	struct dirent d;	1109	X_DIRENT d;
863	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1110	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
864	} *u;	1111	} *u;
865	struct dirent *entp;	1112	X_DIRENT *entp;
866	char *name, *names;	1113	char *name, *names;
867	int memlen = 4096;	1114	int memlen = 4096;
868	int memofs = 0;	1115	int memofs = 0;
869	int res = 0;	1116	int res = 0;
870	int errorno;
871		1117
872	LOCK (wrklock);	1118	X_LOCK (wrklock);
873	self->dirp = dirp = opendir (req->dataptr);	1119	self->dirp = dirp = opendir (req->ptr1);
874	self->dbuf = u = malloc (sizeof (*u));	1120	self->dbuf = u = malloc (sizeof (*u));
		1121	req->flags |= FLAG_PTR2_FREE;
875	req->data2ptr = names = malloc (memlen);	1122	req->ptr2 = names = malloc (memlen);
876	UNLOCK (wrklock);	1123	X_UNLOCK (wrklock);
877		1124
878	if (dirp && u && names)	1125	if (dirp && u && names)
879	for (;;)	1126	for (;;)
880	{	1127	{
881	errno = 0;	1128	errno = 0;
…		…
893	res++;	1140	res++;
894		1141
895	while (memofs + len > memlen)	1142	while (memofs + len > memlen)
896	{	1143	{
897	memlen *= 2;	1144	memlen *= 2;
898	LOCK (wrklock);	1145	X_LOCK (wrklock);
899	req->data2ptr = names = realloc (names, memlen);	1146	req->ptr2 = names = realloc (names, memlen);
900	UNLOCK (wrklock);	1147	X_UNLOCK (wrklock);
901		1148
902	if (!names)	1149	if (!names)
903	break;	1150	break;
904	}	1151	}
905		1152
…		…
914	req->result = res;	1161	req->result = res;
915	}	1162	}
916		1163
917	/*****************************************************************************/	1164	/*****************************************************************************/
918		1165
919	static void *aio_proc (void *thr_arg)	1166	X_THREAD_PROC (aio_proc)
920	{	1167	{
		1168	{//D
921	aio_req req;	1169	aio_req req;
922	int type;	1170	struct timespec ts;
923	worker *self = (worker *)thr_arg;	1171	worker *self = (worker *)thr_arg;
924		1172
925	do	1173	/* try to distribute timeouts somewhat randomly */
		1174	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1175
		1176	for (;;)
926	{	1177	{
		1178	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1179
927	LOCK (reqlock);	1180	X_LOCK (reqlock);
928		1181
929	for (;;)	1182	for (;;)
930	{	1183	{
931	self->req = req = reqq_shift (&req_queue);	1184	self->req = req = reqq_shift (&req_queue);
932		1185
933	if (req)	1186	if (req)
934	break;	1187	break;
935		1188
936	pthread_cond_wait (&reqwait, &reqlock);	1189	++idle;
		1190
		1191	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1192	== ETIMEDOUT)
		1193	{
		1194	if (idle > max_idle)
		1195	{
		1196	--idle;
		1197	X_UNLOCK (reqlock);
		1198	X_LOCK (wrklock);
		1199	--started;
		1200	X_UNLOCK (wrklock);
		1201	goto quit;
		1202	}
		1203
		1204	/* we are allowed to idle, so do so without any timeout */
		1205	X_COND_WAIT (reqwait, reqlock);
		1206	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1207	}
		1208
		1209	--idle;
937	}	1210	}
938		1211
		1212	--nready;
		1213
939	UNLOCK (reqlock);	1214	X_UNLOCK (reqlock);
940		1215
941	errno = 0; /* strictly unnecessary */	1216	errno = 0; /* strictly unnecessary */
942	type = req->type; /* remember type for QUIT check */
943		1217
944	if (!(req->flags & FLAG_CANCELLED))	1218	if (!(req->flags & FLAG_CANCELLED))
945	switch (type)	1219	switch (req->type)
946	{	1220	{
947	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1221	case REQ_READ: req->result = req->offs >= 0
948	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); 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;
949		1227
950	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1228	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
951	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1229	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
952		1230
953	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1231	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
954	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1232	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
955	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1233	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
956		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;
		1241
957	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1242	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
958	case REQ_CLOSE: req->result = close (req->fd); break;	1243	case REQ_CLOSE: req->result = close (req->int1); break;
959	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1244	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
960	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1245	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1246	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
961	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1247	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
962	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1248	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
963	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1249	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1250	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1251	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
964		1252
965	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1253	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
966	case REQ_FSYNC: req->result = fsync (req->fd); break;	1254	case REQ_FSYNC: req->result = fsync (req->int1); break;
967	case REQ_READDIR: scandir_ (req, self); break;	1255	case REQ_READDIR: scandir_ (req, self); break;
968		1256
969	case REQ_BUSY:	1257	case REQ_BUSY:
		1258	#ifdef _WIN32
		1259	Sleep (req->nv1 * 1000.);
		1260	#else
970	{	1261	{
971	struct timeval tv;	1262	struct timeval tv;
972		1263
973	tv.tv_sec = req->fd;	1264	tv.tv_sec = req->nv1;
974	tv.tv_usec = req->fd2;	1265	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
975		1266
976	req->result = select (0, 0, 0, 0, &tv);	1267	req->result = select (0, 0, 0, 0, &tv);
977	}	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);
		1294	}
978		1295
979	case REQ_GROUP:	1296	case REQ_GROUP:
980	case REQ_NOP:	1297	case REQ_NOP:
		1298	break;
		1299
981	case REQ_QUIT:	1300	case REQ_QUIT:
982	break;	1301	goto quit;
983		1302
984	default:	1303	default:
985	req->result = ENOSYS;	1304	req->result = -1;
986	break;	1305	break;
987	}	1306	}
988		1307
989	req->errorno = errno;	1308	req->errorno = errno;
990		1309
991	LOCK (reslock);	1310	X_LOCK (reslock);
		1311
		1312	++npending;
992		1313
993	if (!reqq_push (&res_queue, req))	1314	if (!reqq_push (&res_queue, req))
		1315	{
994	/* write a dummy byte to the pipe so fh becomes ready */	1316	/* write a dummy byte to the pipe so fh becomes ready */
995	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	}
996		1323
997	self->req = 0;	1324	self->req = 0;
998	worker_clear (self);	1325	worker_clear (self);
999		1326
1000	UNLOCK (reslock);	1327	X_UNLOCK (reslock);
1001	}	1328	}
1002	while (type != REQ_QUIT);
1003		1329
		1330	quit:
1004	LOCK (wrklock);	1331	X_LOCK (wrklock);
1005	worker_free (self);	1332	worker_free (self);
1006	UNLOCK (wrklock);	1333	X_UNLOCK (wrklock);
1007		1334
1008	return 0;	1335	return 0;
		1336	}//D
1009	}	1337	}
1010		1338
1011	/*****************************************************************************/	1339	/*****************************************************************************/
1012		1340
1013	static void atfork_prepare (void)	1341	static void atfork_prepare (void)
1014	{	1342	{
1015	LOCK (wrklock);	1343	X_LOCK (wrklock);
1016	LOCK (reqlock);	1344	X_LOCK (reqlock);
1017	LOCK (reslock);	1345	X_LOCK (reslock);
1018	#if !HAVE_PREADWRITE	1346	#if !HAVE_PREADWRITE
1019	LOCK (preadwritelock);	1347	X_LOCK (preadwritelock);
1020	#endif	1348	#endif
1021	#if !HAVE_READDIR_R	1349	#if !HAVE_READDIR_R
1022	LOCK (readdirlock);	1350	X_LOCK (readdirlock);
1023	#endif	1351	#endif
1024	}	1352	}
1025		1353
1026	static void atfork_parent (void)	1354	static void atfork_parent (void)
1027	{	1355	{
1028	#if !HAVE_READDIR_R	1356	#if !HAVE_READDIR_R
1029	UNLOCK (readdirlock);	1357	X_UNLOCK (readdirlock);
1030	#endif	1358	#endif
1031	#if !HAVE_PREADWRITE	1359	#if !HAVE_PREADWRITE
1032	UNLOCK (preadwritelock);	1360	X_UNLOCK (preadwritelock);
1033	#endif	1361	#endif
1034	UNLOCK (reslock);	1362	X_UNLOCK (reslock);
1035	UNLOCK (reqlock);	1363	X_UNLOCK (reqlock);
1036	UNLOCK (wrklock);	1364	X_UNLOCK (wrklock);
1037	}	1365	}
1038		1366
1039	static void atfork_child (void)	1367	static void atfork_child (void)
1040	{	1368	{
1041	aio_req prv;	1369	aio_req prv;
1042		1370
1043	while (prv = reqq_shift (&req_queue))	1371	while (prv = reqq_shift (&req_queue))
1044	req_free (prv);	1372	req_destroy (prv);
1045		1373
1046	while (prv = reqq_shift (&res_queue))	1374	while (prv = reqq_shift (&res_queue))
1047	req_free (prv);	1375	req_destroy (prv);
1048		1376
1049	while (wrk_first.next != &wrk_first)	1377	while (wrk_first.next != &wrk_first)
1050	{	1378	{
1051	worker *wrk = wrk_first.next;	1379	worker *wrk = wrk_first.next;
1052		1380
1053	if (wrk->req)	1381	if (wrk->req)
1054	req_free (wrk->req);	1382	req_destroy (wrk->req);
1055		1383
1056	worker_clear (wrk);	1384	worker_clear (wrk);
1057	worker_free (wrk);	1385	worker_free (wrk);
1058	}	1386	}
1059		1387
1060	started = 0;	1388	started = 0;
		1389	idle = 0;
1061	nreqs = 0;	1390	nreqs = 0;
		1391	nready = 0;
		1392	npending = 0;
1062		1393
1063	close (respipe [0]);
1064	close (respipe [1]);
1065	create_pipe ();	1394	create_respipe ();
1066		1395
1067	atfork_parent ();	1396	atfork_parent ();
1068	}	1397	}
1069		1398
1070	#define dREQ \	1399	#define dREQ \
…		…
1093	PROTOTYPES: ENABLE	1422	PROTOTYPES: ENABLE
1094		1423
1095	BOOT:	1424	BOOT:
1096	{	1425	{
1097	HV *stash = gv_stashpv ("IO::AIO", 1);	1426	HV *stash = gv_stashpv ("IO::AIO", 1);
		1427
1098	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1428	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1429	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1430	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1431	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		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);
1101		1440
1102	create_pipe ();	1441	X_COND_CHECK (reqwait);
		1442	#else
		1443	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1444	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1445	#endif
		1446
		1447	create_respipe ();
		1448
1103	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1449	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1104	}	1450	}
1105		1451
1106	void	1452	void
1107	min_parallel (nthreads)	1453	max_poll_reqs (int nreqs)
1108	int nthreads
1109	PROTOTYPE: $	1454	PROTOTYPE: $
		1455	CODE:
		1456	max_poll_reqs = nreqs;
1110		1457
1111	void	1458	void
1112	max_parallel (nthreads)	1459	max_poll_time (double nseconds)
1113	int nthreads
1114	PROTOTYPE: $	1460	PROTOTYPE: $
		1461	CODE:
		1462	max_poll_time = nseconds * AIO_TICKS;
1115		1463
1116	void	1464	void
		1465	min_parallel (int nthreads)
		1466	PROTOTYPE: $
		1467
		1468	void
		1469	max_parallel (int nthreads)
		1470	PROTOTYPE: $
		1471
		1472	void
		1473	max_idle (int nthreads)
		1474	PROTOTYPE: $
		1475	CODE:
		1476	set_max_idle (nthreads);
		1477
		1478	int
		1479	max_outstanding (int maxreqs)
		1480	PROTOTYPE: $
		1481	CODE:
		1482	RETVAL = max_outstanding;
		1483	max_outstanding = maxreqs;
		1484	OUTPUT:
		1485	RETVAL
		1486
		1487	void
1117	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1488	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1118	SV * pathname
1119	int flags
1120	int mode
1121	SV * callback
1122	PROTOTYPE: $$$;$	1489	PROTOTYPE: $$$;$
1123	PPCODE:	1490	PPCODE:
1124	{	1491	{
1125	dREQ;	1492	dREQ;
1126		1493
1127	req->type = REQ_OPEN;	1494	req->type = REQ_OPEN;
1128	req->data = newSVsv (pathname);	1495	req->sv1 = newSVsv (pathname);
1129	req->dataptr = SvPVbyte_nolen (req->data);	1496	req->ptr1 = SvPVbyte_nolen (req->sv1);
1130	req->fd = flags;	1497	req->int1 = flags;
1131	req->mode = mode;	1498	req->mode = mode;
1132		1499
1133	REQ_SEND;	1500	REQ_SEND;
1134	}	1501	}
1135		1502
1136	void	1503	void
1137	aio_close (fh,callback=&PL_sv_undef)	1504	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1138	SV * fh
1139	SV * callback
1140	PROTOTYPE: $;$	1505	PROTOTYPE: $;$
1141	ALIAS:	1506	ALIAS:
1142	aio_close = REQ_CLOSE	1507	aio_close = REQ_CLOSE
1143	aio_fsync = REQ_FSYNC	1508	aio_fsync = REQ_FSYNC
1144	aio_fdatasync = REQ_FDATASYNC	1509	aio_fdatasync = REQ_FDATASYNC
1145	PPCODE:	1510	PPCODE:
1146	{	1511	{
1147	dREQ;	1512	dREQ;
1148		1513
1149	req->type = ix;	1514	req->type = ix;
1150	req->fh = newSVsv (fh);	1515	req->sv1 = newSVsv (fh);
1151	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1516	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152		1517
1153	REQ_SEND (req);	1518	REQ_SEND (req);
1154	}	1519	}
1155		1520
1156	void	1521	void
1157	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)
1158	SV * fh
1159	UV offset
1160	UV length
1161	SV * data
1162	UV dataoffset
1163	SV * callback
1164	ALIAS:	1523	ALIAS:
1165	aio_read = REQ_READ	1524	aio_read = REQ_READ
1166	aio_write = REQ_WRITE	1525	aio_write = REQ_WRITE
1167	PROTOTYPE: $$$$$;$	1526	PROTOTYPE: $$$$$;$
1168	PPCODE:	1527	PPCODE:
1169	{	1528	{
1170	aio_req req;
1171	STRLEN svlen;	1529	STRLEN svlen;
1172	char *svptr = SvPVbyte (data, svlen);	1530	char *svptr = SvPVbyte (data, svlen);
		1531	UV len = SvUV (length);
1173		1532
1174	SvUPGRADE (data, SVt_PV);	1533	SvUPGRADE (data, SVt_PV);
1175	SvPOK_on (data);	1534	SvPOK_on (data);
1176		1535
1177	if (dataoffset < 0)	1536	if (dataoffset < 0)
1178	dataoffset += svlen;	1537	dataoffset += svlen;
1179		1538
1180	if (dataoffset < 0 || dataoffset > svlen)	1539	if (dataoffset < 0 || dataoffset > svlen)
1181	croak ("data offset outside of string");	1540	croak ("dataoffset outside of data scalar");
1182		1541
1183	if (ix == REQ_WRITE)	1542	if (ix == REQ_WRITE)
1184	{	1543	{
1185	/* write: check length and adjust. */	1544	/* write: check length and adjust. */
1186	if (length < 0 || length + dataoffset > svlen)	1545	if (!SvOK (length) || len + dataoffset > svlen)
1187	length = svlen - dataoffset;	1546	len = svlen - dataoffset;
1188	}	1547	}
1189	else	1548	else
1190	{	1549	{
1191	/* read: grow scalar as necessary */	1550	/* read: grow scalar as necessary */
1192	svptr = SvGROW (data, length + dataoffset);	1551	svptr = SvGROW (data, len + dataoffset + 1);
1193	}	1552	}
1194		1553
1195	if (length < 0)	1554	if (len < 0)
1196	croak ("length must not be negative");	1555	croak ("length must not be negative");
1197		1556
1198	{	1557	{
1199	dREQ;	1558	dREQ;
1200		1559
1201	req->type = ix;	1560	req->type = ix;
1202	req->fh = newSVsv (fh);	1561	req->sv1 = newSVsv (fh);
1203	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1562	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1204	: IoOFP (sv_2io (fh)));	1563	: IoOFP (sv_2io (fh)));
		1564	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205	req->offset = offset;	1565	req->size = len;
1206	req->length = length;
1207	req->data = SvREFCNT_inc (data);	1566	req->sv2 = SvREFCNT_inc (data);
1208	req->dataptr = (char *)svptr + dataoffset;	1567	req->ptr1 = (char *)svptr + dataoffset;
		1568	req->stroffset = dataoffset;
1209		1569
1210	if (!SvREADONLY (data))	1570	if (!SvREADONLY (data))
1211	{	1571	{
1212	SvREADONLY_on (data);	1572	SvREADONLY_on (data);
1213	req->data2ptr = (void *)data;	1573	req->flags |= FLAG_SV2_RO_OFF;
1214	}	1574	}
1215		1575
1216	REQ_SEND;	1576	REQ_SEND;
1217	}	1577	}
1218	}	1578	}
1219		1579
1220	void	1580	void
		1581	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1582	PROTOTYPE: $$;$
		1583	PPCODE:
		1584	{
		1585	SV *data;
		1586	dREQ;
		1587
		1588	data = newSV (NAME_MAX);
		1589	SvPOK_on (data);
		1590
		1591	req->type = REQ_READLINK;
		1592	req->sv1 = newSVsv (path);
		1593	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1594	req->sv2 = data;
		1595	req->ptr1 = SvPVbyte_nolen (data);
		1596
		1597	REQ_SEND;
		1598	}
		1599
		1600	void
1221	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)
1222	SV * out_fh
1223	SV * in_fh
1224	UV in_offset
1225	UV length
1226	SV * callback
1227	PROTOTYPE: $$$$;$	1602	PROTOTYPE: $$$$;$
1228	PPCODE:	1603	PPCODE:
1229	{	1604	{
1230	dREQ;	1605	dREQ;
1231		1606
1232	req->type = REQ_SENDFILE;	1607	req->type = REQ_SENDFILE;
1233	req->fh = newSVsv (out_fh);	1608	req->sv1 = newSVsv (out_fh);
1234	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1609	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235	req->fh2 = newSVsv (in_fh);	1610	req->sv2 = newSVsv (in_fh);
1236	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1611	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237	req->offset = in_offset;	1612	req->offs = SvVAL64 (in_offset);
1238	req->length = length;	1613	req->size = length;
1239		1614
1240	REQ_SEND;	1615	REQ_SEND;
1241	}	1616	}
1242		1617
1243	void	1618	void
1244	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1619	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1245	SV * fh
1246	UV offset
1247	IV length
1248	SV * callback
1249	PROTOTYPE: $$$;$	1620	PROTOTYPE: $$$;$
1250	PPCODE:	1621	PPCODE:
1251	{	1622	{
1252	dREQ;	1623	dREQ;
1253		1624
1254	req->type = REQ_READAHEAD;	1625	req->type = REQ_READAHEAD;
1255	req->fh = newSVsv (fh);	1626	req->sv1 = newSVsv (fh);
1256	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1627	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257	req->offset = offset;	1628	req->offs = SvVAL64 (offset);
1258	req->length = length;	1629	req->size = length;
1259		1630
1260	REQ_SEND;	1631	REQ_SEND;
1261	}	1632	}
1262		1633
1263	void	1634	void
1264	aio_stat (fh_or_path,callback=&PL_sv_undef)	1635	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265	SV * fh_or_path
1266	SV * callback
1267	ALIAS:	1636	ALIAS:
1268	aio_stat = REQ_STAT	1637	aio_stat = REQ_STAT
1269	aio_lstat = REQ_LSTAT	1638	aio_lstat = REQ_LSTAT
1270	PPCODE:	1639	PPCODE:
1271	{	1640	{
1272	dREQ;	1641	dREQ;
1273		1642
1274	New (0, req->statdata, 1, Stat_t);	1643	req->ptr2 = malloc (sizeof (Stat_t));
1275	if (!req->statdata)	1644	if (!req->ptr2)
1276	{	1645	{
1277	req_free (req);	1646	req_destroy (req);
1278	croak ("out of memory during aio_req->statdata allocation");	1647	croak ("out of memory during aio_stat statdata allocation");
1279	}	1648	}
		1649
		1650	req->flags |= FLAG_PTR2_FREE;
		1651	req->sv1 = newSVsv (fh_or_path);
1280		1652
1281	if (SvPOK (fh_or_path))	1653	if (SvPOK (fh_or_path))
1282	{	1654	{
1283	req->type = ix;	1655	req->type = ix;
1284	req->data = newSVsv (fh_or_path);
1285	req->dataptr = SvPVbyte_nolen (req->data);	1656	req->ptr1 = SvPVbyte_nolen (req->sv1);
1286	}	1657	}
1287	else	1658	else
1288	{	1659	{
1289	req->type = REQ_FSTAT;	1660	req->type = REQ_FSTAT;
1290	req->fh = newSVsv (fh_or_path);
1291	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1661	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292	}	1662	}
1293		1663
1294	REQ_SEND;	1664	REQ_SEND;
1295	}	1665	}
1296		1666
1297	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
1298	aio_unlink (pathname,callback=&PL_sv_undef)	1762	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299	SV * pathname
1300	SV * callback
1301	ALIAS:	1763	ALIAS:
1302	aio_unlink = REQ_UNLINK	1764	aio_unlink = REQ_UNLINK
1303	aio_rmdir = REQ_RMDIR	1765	aio_rmdir = REQ_RMDIR
1304	aio_readdir = REQ_READDIR	1766	aio_readdir = REQ_READDIR
1305	PPCODE:	1767	PPCODE:
1306	{	1768	{
1307	dREQ;	1769	dREQ;
1308		1770
1309	req->type = ix;	1771	req->type = ix;
1310	req->data = newSVsv (pathname);	1772	req->sv1 = newSVsv (pathname);
1311	req->dataptr = SvPVbyte_nolen (req->data);	1773	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1774
		1775	REQ_SEND;
		1776	}
		1777
		1778	void
		1779	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1780	PPCODE:
		1781	{
		1782	dREQ;
1312		1783
		1784	req->type = REQ_MKDIR;
		1785	req->sv1 = newSVsv (pathname);
		1786	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1787	req->mode = mode;
		1788
1313	REQ_SEND;	1789	REQ_SEND;
1314	}	1790	}
1315		1791
1316	void	1792	void
1317	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1793	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318	SV * oldpath
1319	SV * newpath
1320	SV * callback
1321	ALIAS:	1794	ALIAS:
1322	aio_link = REQ_LINK	1795	aio_link = REQ_LINK
1323	aio_symlink = REQ_SYMLINK	1796	aio_symlink = REQ_SYMLINK
1324	aio_rename = REQ_RENAME	1797	aio_rename = REQ_RENAME
1325	PPCODE:	1798	PPCODE:
1326	{	1799	{
1327	dREQ;	1800	dREQ;
1328		1801
1329	req->type = ix;	1802	req->type = ix;
1330	req->fh = newSVsv (oldpath);	1803	req->sv2 = newSVsv (oldpath);
1331	req->data2ptr = SvPVbyte_nolen (req->fh);	1804	req->ptr2 = SvPVbyte_nolen (req->sv2);
1332	req->data = newSVsv (newpath);	1805	req->sv1 = newSVsv (newpath);
1333	req->dataptr = SvPVbyte_nolen (req->data);	1806	req->ptr1 = SvPVbyte_nolen (req->sv1);
1334		1807
1335	REQ_SEND;	1808	REQ_SEND;
1336	}	1809	}
1337		1810
1338	void	1811	void
1339	aio_busy (delay,callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340	double delay
1341	SV * callback
1342	PPCODE:	1813	PPCODE:
1343	{	1814	{
1344	dREQ;	1815	dREQ;
		1816
		1817	req->type = REQ_MKNOD;
		1818	req->sv1 = newSVsv (pathname);
		1819	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1820	req->mode = (mode_t)mode;
		1821	req->offs = dev;
		1822
		1823	REQ_SEND;
		1824	}
		1825
		1826	void
		1827	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1828	PPCODE:
		1829	{
		1830	dREQ;
1345		1831
1346	req->type = REQ_BUSY;	1832	req->type = REQ_BUSY;
1347	req->fd = delay < 0. ? 0 : delay;	1833	req->nv1 = delay < 0. ? 0. : delay;
1348	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1349		1834
1350	REQ_SEND;	1835	REQ_SEND;
1351	}	1836	}
1352		1837
1353	void	1838	void
1354	aio_group (callback=&PL_sv_undef)	1839	aio_group (SV *callback=&PL_sv_undef)
1355	SV * callback
1356	PROTOTYPE: ;$	1840	PROTOTYPE: ;$
1357	PPCODE:	1841	PPCODE:
1358	{	1842	{
1359	dREQ;	1843	dREQ;
1360		1844
1361	req->type = REQ_GROUP;	1845	req->type = REQ_GROUP;
		1846
1362	req_send (req);	1847	req_send (req);
1363
1364	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1848	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1365	}	1849	}
1366		1850
1367	void	1851	void
1368	aio_nop (callback=&PL_sv_undef)	1852	aio_nop (SV *callback=&PL_sv_undef)
1369	SV * callback
1370	PPCODE:	1853	PPCODE:
1371	{	1854	{
1372	dREQ;	1855	dREQ;
1373		1856
1374	req->type = REQ_NOP;	1857	req->type = REQ_NOP;
1375		1858
1376	REQ_SEND;	1859	REQ_SEND;
1377	}	1860	}
1378		1861
1379	void	1862	int
1380	aioreq_pri (int pri = DEFAULT_PRI)	1863	aioreq_pri (int pri = 0)
1381	CODE:	1864	PROTOTYPE: ;$
		1865	CODE:
		1866	RETVAL = next_pri - PRI_BIAS;
		1867	if (items > 0)
		1868	{
1382	if (pri < PRI_MIN) pri = PRI_MIN;	1869	if (pri < PRI_MIN) pri = PRI_MIN;
1383	if (pri > PRI_MAX) pri = PRI_MAX;	1870	if (pri > PRI_MAX) pri = PRI_MAX;
1384	next_pri = pri + PRI_BIAS;	1871	next_pri = pri + PRI_BIAS;
		1872	}
		1873	OUTPUT:
		1874	RETVAL
1385		1875
1386	void	1876	void
1387	aioreq_nice (int nice = 0)	1877	aioreq_nice (int nice = 0)
1388	CODE:	1878	CODE:
1389	nice = next_pri - nice;	1879	nice = next_pri - nice;
1390	if (nice < PRI_MIN) nice = PRI_MIN;	1880	if (nice < PRI_MIN) nice = PRI_MIN;
1391	if (nice > PRI_MAX) nice = PRI_MAX;	1881	if (nice > PRI_MAX) nice = PRI_MAX;
1392	next_pri = nice + PRI_BIAS;	1882	next_pri = nice + PRI_BIAS;
1393		1883
1394	void	1884	void
1395	flush ()	1885	flush ()
1396	PROTOTYPE:	1886	PROTOTYPE:
1397	CODE:	1887	CODE:
1398	while (nreqs)	1888	while (nreqs)
1399	{	1889	{
1400	poll_wait ();	1890	poll_wait ();
1401	poll_cb (0);	1891	poll_cb ();
1402	}	1892	}
1403		1893
1404	void	1894	int
1405	poll()	1895	poll()
1406	PROTOTYPE:	1896	PROTOTYPE:
1407	CODE:	1897	CODE:
1408	if (nreqs)
1409	{
1410	poll_wait ();	1898	poll_wait ();
1411	poll_cb (0);	1899	RETVAL = poll_cb ();
1412	}	1900	OUTPUT:
		1901	RETVAL
1413		1902
1414	int	1903	int
1415	poll_fileno()	1904	poll_fileno()
1416	PROTOTYPE:	1905	PROTOTYPE:
1417	CODE:	1906	CODE:
…		…
1421		1910
1422	int	1911	int
1423	poll_cb(...)	1912	poll_cb(...)
1424	PROTOTYPE:	1913	PROTOTYPE:
1425	CODE:	1914	CODE:
1426	RETVAL = poll_cb (0);	1915	RETVAL = poll_cb ();
1427	OUTPUT:
1428	RETVAL
1429
1430	int
1431	poll_some(int max = 0)
1432	PROTOTYPE: $
1433	CODE:
1434	RETVAL = poll_cb (max);
1435	OUTPUT:	1916	OUTPUT:
1436	RETVAL	1917	RETVAL
1437		1918
1438	void	1919	void
1439	poll_wait()	1920	poll_wait()
1440	PROTOTYPE:	1921	PROTOTYPE:
1441	CODE:	1922	CODE:
1442	if (nreqs)
1443	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	}
1444		1961
1445	int	1962	int
1446	nreqs()	1963	nreqs()
1447	PROTOTYPE:	1964	PROTOTYPE:
1448	CODE:	1965	CODE:
1449	RETVAL = nreqs;	1966	RETVAL = nreqs;
1450	OUTPUT:	1967	OUTPUT:
1451	RETVAL	1968	RETVAL
1452		1969
		1970	int
		1971	nready()
		1972	PROTOTYPE:
		1973	CODE:
		1974	RETVAL = get_nready ();
		1975	OUTPUT:
		1976	RETVAL
		1977
		1978	int
		1979	npending()
		1980	PROTOTYPE:
		1981	CODE:
		1982	RETVAL = get_npending ();
		1983	OUTPUT:
		1984	RETVAL
		1985
		1986	int
		1987	nthreads()
		1988	PROTOTYPE:
		1989	CODE:
		1990	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1991	RETVAL = started;
		1992	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		1993	OUTPUT:
		1994	RETVAL
		1995
1453	PROTOTYPES: DISABLE	1996	PROTOTYPES: DISABLE
1454		1997
1455	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1998	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456		1999
1457	void	2000	void
…		…
1472	PPCODE:	2015	PPCODE:
1473	{	2016	{
1474	int i;	2017	int i;
1475	aio_req req;	2018	aio_req req;
1476		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
1477	if (grp->fd == 2)	2023	if (grp->int1 == 2)
1478	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");
1479		2025
1480	for (i = 1; i < items; ++i )	2026	for (i = 1; i < items; ++i )
1481	{	2027	{
1482	if (GIMME_V != G_VOID)	2028	if (GIMME_V != G_VOID)
…		…
1484		2030
1485	req = SvAIO_REQ (ST (i));	2031	req = SvAIO_REQ (ST (i));
1486		2032
1487	if (req)	2033	if (req)
1488	{	2034	{
1489	++grp->length;	2035	++grp->size;
1490	req->grp = grp;	2036	req->grp = grp;
1491		2037
1492	req->grp_prev = 0;	2038	req->grp_prev = 0;
1493	req->grp_next = grp->grp_first;	2039	req->grp_next = grp->grp_first;
1494		2040
…		…
1508	void	2054	void
1509	result (aio_req grp, ...)	2055	result (aio_req grp, ...)
1510	CODE:	2056	CODE:
1511	{	2057	{
1512	int i;	2058	int i;
		2059	AV *av;
		2060
		2061	grp->errorno = errno;
		2062
1513	AV *av = newAV ();	2063	av = newAV ();
1514		2064
1515	for (i = 1; i < items; ++i )	2065	for (i = 1; i < items; ++i )
1516	av_push (av, newSVsv (ST (i)));	2066	av_push (av, newSVsv (ST (i)));
1517		2067
1518	SvREFCNT_dec (grp->data);	2068	SvREFCNT_dec (grp->sv1);
1519	grp->data = (SV *)av;	2069	grp->sv1 = (SV *)av;
1520	}	2070	}
		2071
		2072	void
		2073	errno (aio_req grp, int errorno = errno)
		2074	CODE:
		2075	grp->errorno = errorno;
1521		2076
1522	void	2077	void
1523	limit (aio_req grp, int limit)	2078	limit (aio_req grp, int limit)
1524	CODE:	2079	CODE:
1525	grp->fd2 = limit;	2080	grp->int2 = limit;
1526	aio_grp_feed (grp);	2081	aio_grp_feed (grp);
1527		2082
1528	void	2083	void
1529	feed (aio_req grp, SV *callback=&PL_sv_undef)	2084	feed (aio_req grp, SV *callback=&PL_sv_undef)
1530	CODE:	2085	CODE:
1531	{	2086	{
1532	SvREFCNT_dec (grp->fh2);	2087	SvREFCNT_dec (grp->sv2);
1533	grp->fh2 = newSVsv (callback);	2088	grp->sv2 = newSVsv (callback);
1534		2089
1535	if (grp->fd2 <= 0)	2090	if (grp->int2 <= 0)
1536	grp->fd2 = 2;	2091	grp->int2 = 2;
1537		2092
1538	aio_grp_feed (grp);	2093	aio_grp_feed (grp);
1539	}	2094	}
1540		2095

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