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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.80 by root, Fri Oct 27 19:17:23 2006 UTC vs.
Revision 1.103 by root, Sun Jul 8 09:09:34 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 stat
		30	# undef fstat
		31	# define lstat stat
		32	# undef truncate
		33	# undef ftruncate
		34	# undef open
		35	# undef close
		36	# undef unlink
		37	# undef rmdir
		38	# undef rename
		39	# undef lseek
		40
		41	# define chown(a,b,c) (errno = ENOSYS, -1)
		42	# define fchown(a,b,c) (errno = ENOSYS, -1)
		43	# define fchmod(a,b) (errno = ENOSYS, -1)
		44	# define symlink(a,b) (errno = ENOSYS, -1)
		45	# define readlink(a,b,c) (errno = ENOSYS, -1)
		46	# define mknod(a,b,c) (errno = ENOSYS, -1)
		47	# define truncate(a,b) (errno = ENOSYS, -1)
		48	# define ftruncate(fd,o) chsize ((fd), (o))
		49	# define fsync(fd) _commit (fd)
		50	# define opendir(fd) (errno = ENOSYS, 0)
		51	# define readdir(fd) (errno = ENOSYS, -1)
		52	# define closedir(fd) (errno = ENOSYS, -1)
		53	# define mkdir(a,b) mkdir (a)
		54
		55	#else
		56
		57	# include "autoconf/config.h"
		58	# include <sys/time.h>
		59	# include <sys/select.h>
		60	# include <unistd.h>
		61	# include <utime.h>
		62	# include <signal.h>
		63	typedef struct dirent X_DIRENT;
		64
		65	#endif
32		66
33	#if HAVE_SENDFILE	67	#if HAVE_SENDFILE
34	# if __linux	68	# if __linux
35	# include <sys/sendfile.h>	69	# include <sys/sendfile.h>
36	# elif __freebsd	70	# elif __freebsd
…		…
43	# else	77	# else
44	# error sendfile support requested but not available	78	# error sendfile support requested but not available
45	# endif	79	# endif
46	#endif	80	#endif
47		81
		82	/* number of seconds after which idle threads exit */
		83	#define IDLE_TIMEOUT 10
		84
48	/* used for struct dirent, AIX doesn't provide it */	85	/* used for struct dirent, AIX doesn't provide it */
49	#ifndef NAME_MAX	86	#ifndef NAME_MAX
50	# define NAME_MAX 4096	87	# define NAME_MAX 4096
51	#endif	88	#endif
52		89
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	/* wether word reads are potentially non-atomic.
67	* this is conservatice, likely most arches this runs
68	* on have atomic word read/writes.
69	*/
70	#ifndef WORDREAD_UNSAFE
71	# if __i386 || __x86_64
72	# define WORDREAD_UNSAFE 0
73	# else
74	# define WORDREAD_UNSAFE 1
75	# endif
76	#endif
77
78	/* buffer size for various temporary buffers */	90	/* buffer size for various temporary buffers */
79	#define AIO_BUFSIZE 65536	91	#define AIO_BUFSIZE 65536
80		92
		93	/* use NV for 32 bit perls as it allows larger offsets */
		94	#if IVSIZE >= 8
		95	# define SvVAL64 SvIV
		96	#else
		97	# define SvVAL64 SvNV
		98	#endif
		99
81	#define dBUF \	100	#define dBUF \
82	char *aio_buf; \	101	char *aio_buf; \
83	LOCK (wrklock); \	102	X_LOCK (wrklock); \
84	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	103	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
85	UNLOCK (wrklock); \	104	X_UNLOCK (wrklock); \
86	if (!aio_buf) \	105	if (!aio_buf) \
87	return -1;	106	return -1;
		107
		108	typedef SV SV8; /* byte-sv, used for argument-checking */
88		109
89	enum {	110	enum {
90	REQ_QUIT,	111	REQ_QUIT,
91	REQ_OPEN, REQ_CLOSE,	112	REQ_OPEN, REQ_CLOSE,
92	REQ_READ, REQ_WRITE, REQ_READAHEAD,	113	REQ_READ, REQ_WRITE,
93	REQ_SENDFILE,	114	REQ_READAHEAD, REQ_SENDFILE,
94	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	115	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		116	REQ_TRUNCATE, REQ_FTRUNCATE,
		117	REQ_UTIME, REQ_FUTIME,
		118	REQ_CHMOD, REQ_FCHMOD,
		119	REQ_CHOWN, REQ_FCHOWN,
95	REQ_FSYNC, REQ_FDATASYNC,	120	REQ_FSYNC, REQ_FDATASYNC,
96	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	121	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
97	REQ_READDIR,	122	REQ_MKNOD, REQ_READDIR,
98	REQ_LINK, REQ_SYMLINK,	123	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
99	REQ_GROUP, REQ_NOP,	124	REQ_GROUP, REQ_NOP,
100	REQ_BUSY,	125	REQ_BUSY,
101	};	126	};
102		127
103	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
105		130
106	typedef struct aio_cb	131	typedef struct aio_cb
107	{	132	{
108	struct aio_cb *volatile next;	133	struct aio_cb *volatile next;
109		134
110	SV *data, *callback;	135	SV *callback;
111	SV *fh, *fh2;	136	SV *sv1, *sv2;
112	void *dataptr, *data2ptr;	137	void *ptr1, *ptr2;
113	Stat_t *statdata;
114	off_t offset;	138	off_t offs;
115	size_t length;	139	size_t size;
116	ssize_t result;	140	ssize_t result;
		141	double nv1, nv2;
117		142
118	STRLEN dataoffset;	143	STRLEN stroffset;
119	int type;	144	int type;
120	int fd, fd2;	145	int int1, int2, int3;
121	int errorno;	146	int errorno;
122	mode_t mode; /* open */	147	mode_t mode; /* open */
123		148
124	unsigned char flags;	149	unsigned char flags;
125	unsigned char pri;	150	unsigned char pri;
…		…
127	SV *self; /* the perl counterpart of this request, if any */	152	SV *self; /* the perl counterpart of this request, if any */
128	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	153	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
129	} aio_cb;	154	} aio_cb;
130		155
131	enum {	156	enum {
132	FLAG_CANCELLED = 0x01,	157	FLAG_CANCELLED = 0x01, /* request was cancelled */
		158	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		159	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
133	};	160	};
134		161
135	typedef aio_cb *aio_req;	162	typedef aio_cb *aio_req;
136	typedef aio_cb *aio_req_ornot;	163	typedef aio_cb *aio_req_ornot;
137		164
…		…
142	DEFAULT_PRI = 0,	169	DEFAULT_PRI = 0,
143	PRI_BIAS = -PRI_MIN,	170	PRI_BIAS = -PRI_MIN,
144	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	171	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
145	};	172	};
146		173
		174	#define AIO_TICKS ((1000000 + 1023) >> 10)
		175
		176	static unsigned int max_poll_time = 0;
		177	static unsigned int max_poll_reqs = 0;
		178
		179	/* calculcate time difference in ~1/AIO_TICKS of a second */
		180	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		181	{
		182	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		183	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		184	}
		185
		186	static thread_t main_tid;
		187	static int main_sig;
		188	static int block_sig_level;
		189
		190	void block_sig ()
		191	{
		192	sigset_t ss;
		193
		194	if (block_sig_level++)
		195	return;
		196
		197	if (!main_sig)
		198	return;
		199
		200	sigemptyset (&ss);
		201	sigaddset (&ss, main_sig);
		202	pthread_sigmask (SIG_BLOCK, &ss, 0);
		203	}
		204
		205	void unblock_sig ()
		206	{
		207	sigset_t ss;
		208
		209	if (--block_sig_level)
		210	return;
		211
		212	if (!main_sig)
		213	return;
		214
		215	sigemptyset (&ss);
		216	sigaddset (&ss, main_sig);
		217	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		218	}
		219
147	static int next_pri = DEFAULT_PRI + PRI_BIAS;	220	static int next_pri = DEFAULT_PRI + PRI_BIAS;
148		221
149	static unsigned int started, wanted;	222	static unsigned int started, idle, wanted;
150
151	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
152	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
153	#else
154	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
155	#endif
156
157	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
158	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
159		223
160	/* worker threads management */	224	/* worker threads management */
161	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	225	static mutex_t wrklock = X_MUTEX_INIT;
162		226
163	typedef struct worker {	227	typedef struct worker {
164	/* locked by wrklock */	228	/* locked by wrklock */
165	struct worker *prev, *next;	229	struct worker *prev, *next;
166		230
167	pthread_t tid;	231	thread_t tid;
168		232
169	/* locked by reslock, reqlock or wrklock */	233	/* locked by reslock, reqlock or wrklock */
170	aio_req req; /* currently processed request */	234	aio_req req; /* currently processed request */
171	void *dbuf;	235	void *dbuf;
172	DIR *dirp;	236	DIR *dirp;
…		…
196		260
197	free (wrk);	261	free (wrk);
198	}	262	}
199		263
200	static volatile unsigned int nreqs, nready, npending;	264	static volatile unsigned int nreqs, nready, npending;
		265	static volatile unsigned int max_idle = 4;
201	static volatile unsigned int max_outstanding = 0xffffffff;	266	static volatile unsigned int max_outstanding = 0xffffffff;
202	static int respipe [2];	267	static int respipe [2];
203		268
204	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	269	static mutex_t reslock = X_MUTEX_INIT;
205	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	270	static mutex_t reqlock = X_MUTEX_INIT;
206	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	271	static cond_t reqwait = X_COND_INIT;
207		272
208	#if WORDREAD_UNSAFE	273	#if WORDACCESS_UNSAFE
209		274
210	static unsigned int get_nready ()	275	static unsigned int get_nready ()
211	{	276	{
212	unsigned int retval;	277	unsigned int retval;
213		278
214	LOCK (reqlock);	279	X_LOCK (reqlock);
215	retval = nready;	280	retval = nready;
216	UNLOCK (reqlock);	281	X_UNLOCK (reqlock);
217		282
218	return retval;	283	return retval;
219	}	284	}
220		285
221	static unsigned int get_npending ()	286	static unsigned int get_npending ()
222	{	287	{
223	unsigned int retval;	288	unsigned int retval;
224		289
225	LOCK (reslock);	290	X_LOCK (reslock);
226	retval = npending;	291	retval = npending;
227	UNLOCK (reslock);	292	X_UNLOCK (reslock);
		293
		294	return retval;
		295	}
		296
		297	static unsigned int get_nthreads ()
		298	{
		299	unsigned int retval;
		300
		301	X_LOCK (wrklock);
		302	retval = started;
		303	X_UNLOCK (wrklock);
228		304
229	return retval;	305	return retval;
230	}	306	}
231		307
232	#else	308	#else
233		309
234	# define get_nready() nready	310	# define get_nready() nready
235	# define get_npending() npending	311	# define get_npending() npending
		312	# define get_nthreads() started
236		313
237	#endif	314	#endif
238		315
239	/*	316	/*
240	* a somewhat faster data structure might be nice, but	317	* a somewhat faster data structure might be nice, but
…		…
288	}	365	}
289		366
290	abort ();	367	abort ();
291	}	368	}
292		369
293	static int poll_cb (int max);	370	static int poll_cb ();
294	static void req_invoke (aio_req req);	371	static int req_invoke (aio_req req);
295	static void req_free (aio_req req);	372	static void req_destroy (aio_req req);
296	static void req_cancel (aio_req req);	373	static void req_cancel (aio_req req);
297		374
298	/* must be called at most once */	375	/* must be called at most once */
299	static SV *req_sv (aio_req req, const char *klass)	376	static SV *req_sv (aio_req req, const char *klass)
300	{	377	{
…		…
319	return mg ? (aio_req)mg->mg_ptr : 0;	396	return mg ? (aio_req)mg->mg_ptr : 0;
320	}	397	}
321		398
322	static void aio_grp_feed (aio_req grp)	399	static void aio_grp_feed (aio_req grp)
323	{	400	{
		401	block_sig ();
		402
324	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	403	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
325	{	404	{
326	int old_len = grp->length;	405	int old_len = grp->size;
327		406
328	if (grp->fh2 && SvOK (grp->fh2))	407	if (grp->sv2 && SvOK (grp->sv2))
329	{	408	{
330	dSP;	409	dSP;
331		410
332	ENTER;	411	ENTER;
333	SAVETMPS;	412	SAVETMPS;
334	PUSHMARK (SP);	413	PUSHMARK (SP);
335	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	414	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
336	PUTBACK;	415	PUTBACK;
337	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	416	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
338	SPAGAIN;	417	SPAGAIN;
339	FREETMPS;	418	FREETMPS;
340	LEAVE;	419	LEAVE;
341	}	420	}
342		421
343	/* stop if no progress has been made */	422	/* stop if no progress has been made */
344	if (old_len == grp->length)	423	if (old_len == grp->size)
345	{	424	{
346	SvREFCNT_dec (grp->fh2);	425	SvREFCNT_dec (grp->sv2);
347	grp->fh2 = 0;	426	grp->sv2 = 0;
348	break;	427	break;
349	}	428	}
350	}	429	}
		430
		431	unblock_sig ();
351	}	432	}
352		433
353	static void aio_grp_dec (aio_req grp)	434	static void aio_grp_dec (aio_req grp)
354	{	435	{
355	--grp->length;	436	--grp->size;
356		437
357	/* call feeder, if applicable */	438	/* call feeder, if applicable */
358	aio_grp_feed (grp);	439	aio_grp_feed (grp);
359		440
360	/* finish, if done */	441	/* finish, if done */
361	if (!grp->length && grp->fd)	442	if (!grp->size && grp->int1)
362	{	443	{
		444	block_sig ();
		445
363	req_invoke (grp);	446	if (!req_invoke (grp))
		447	{
		448	req_destroy (grp);
		449	unblock_sig ();
		450	croak (0);
		451	}
		452
364	req_free (grp);	453	req_destroy (grp);
		454	unblock_sig ();
365	}	455	}
366	}	456	}
367		457
368	static void req_invoke (aio_req req)	458	static int req_invoke (aio_req req)
369	{	459	{
370	dSP;	460	dSP;
		461
		462	if (req->flags & FLAG_SV2_RO_OFF)
		463	SvREADONLY_off (req->sv2);
371		464
372	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	465	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
373	{	466	{
374	ENTER;	467	ENTER;
375	SAVETMPS;	468	SAVETMPS;
…		…
383	SV *rv = &PL_sv_undef;	476	SV *rv = &PL_sv_undef;
384		477
385	if (req->result >= 0)	478	if (req->result >= 0)
386	{	479	{
387	int i;	480	int i;
388	char *buf = req->data2ptr;	481	char *buf = req->ptr2;
389	AV *av = newAV ();	482	AV *av = newAV ();
390		483
391	av_extend (av, req->result - 1);	484	av_extend (av, req->result - 1);
392		485
393	for (i = 0; i < req->result; ++i)	486	for (i = 0; i < req->result; ++i)
…		…
413	PUSHs (sv_2mortal (newSViv (req->result)));	506	PUSHs (sv_2mortal (newSViv (req->result)));
414	PUTBACK;	507	PUTBACK;
415	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	508	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
416	SPAGAIN;	509	SPAGAIN;
417		510
418	fh = SvREFCNT_inc (POPs);	511	fh = POPs;
419
420	PUSHMARK (SP);	512	PUSHMARK (SP);
421	XPUSHs (sv_2mortal (fh));	513	XPUSHs (fh);
422	}	514	}
423	break;	515	break;
424		516
425	case REQ_GROUP:	517	case REQ_GROUP:
426	req->fd = 2; /* mark group as finished */	518	req->int1 = 2; /* mark group as finished */
427		519
428	if (req->data)	520	if (req->sv1)
429	{	521	{
430	int i;	522	int i;
431	AV *av = (AV *)req->data;	523	AV *av = (AV *)req->sv1;
432		524
433	EXTEND (SP, AvFILL (av) + 1);	525	EXTEND (SP, AvFILL (av) + 1);
434	for (i = 0; i <= AvFILL (av); ++i)	526	for (i = 0; i <= AvFILL (av); ++i)
435	PUSHs (*av_fetch (av, i, 0));	527	PUSHs (*av_fetch (av, i, 0));
436	}	528	}
…		…
438		530
439	case REQ_NOP:	531	case REQ_NOP:
440	case REQ_BUSY:	532	case REQ_BUSY:
441	break;	533	break;
442		534
		535	case REQ_READLINK:
		536	if (req->result > 0)
		537	{
		538	SvCUR_set (req->sv2, req->result);
		539	*SvEND (req->sv2) = 0;
		540	PUSHs (req->sv2);
		541	}
		542	break;
		543
		544	case REQ_STAT:
		545	case REQ_LSTAT:
		546	case REQ_FSTAT:
		547	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		548	PL_laststatval = req->result;
		549	PL_statcache = *(Stat_t *)(req->ptr2);
		550	PUSHs (sv_2mortal (newSViv (req->result)));
		551	break;
		552
		553	case REQ_READ:
		554	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		555	*SvEND (req->sv2) = 0;
		556	PUSHs (sv_2mortal (newSViv (req->result)));
		557	break;
		558
443	default:	559	default:
444	PUSHs (sv_2mortal (newSViv (req->result)));	560	PUSHs (sv_2mortal (newSViv (req->result)));
445	break;	561	break;
446	}	562	}
447		563
…		…
467	grp->grp_first = req->grp_next;	583	grp->grp_first = req->grp_next;
468		584
469	aio_grp_dec (grp);	585	aio_grp_dec (grp);
470	}	586	}
471		587
472	if (SvTRUE (ERRSV))	588	return !SvTRUE (ERRSV);
473	{
474	req_free (req);
475	croak (0);
476	}
477	}	589	}
478		590
479	static void req_free (aio_req req)	591	static void req_destroy (aio_req req)
480	{	592	{
481	if (req->self)	593	if (req->self)
482	{	594	{
483	sv_unmagic (req->self, PERL_MAGIC_ext);	595	sv_unmagic (req->self, PERL_MAGIC_ext);
484	SvREFCNT_dec (req->self);	596	SvREFCNT_dec (req->self);
485	}	597	}
486		598
487	SvREFCNT_dec (req->data);
488	SvREFCNT_dec (req->fh);	599	SvREFCNT_dec (req->sv1);
489	SvREFCNT_dec (req->fh2);	600	SvREFCNT_dec (req->sv2);
490	SvREFCNT_dec (req->callback);	601	SvREFCNT_dec (req->callback);
491	Safefree (req->statdata);
492		602
493	if (req->type == REQ_READDIR)	603	if (req->flags & FLAG_PTR2_FREE)
494	free (req->data2ptr);	604	free (req->ptr2);
495		605
496	Safefree (req);	606	Safefree (req);
497	}	607	}
498		608
499	static void req_cancel_subs (aio_req grp)	609	static void req_cancel_subs (aio_req grp)
…		…
501	aio_req sub;	611	aio_req sub;
502		612
503	if (grp->type != REQ_GROUP)	613	if (grp->type != REQ_GROUP)
504	return;	614	return;
505		615
506	SvREFCNT_dec (grp->fh2);	616	SvREFCNT_dec (grp->sv2);
507	grp->fh2 = 0;	617	grp->sv2 = 0;
508		618
509	for (sub = grp->grp_first; sub; sub = sub->grp_next)	619	for (sub = grp->grp_first; sub; sub = sub->grp_next)
510	req_cancel (sub);	620	req_cancel (sub);
511	}	621	}
512		622
…		…
515	req->flags |= FLAG_CANCELLED;	625	req->flags |= FLAG_CANCELLED;
516		626
517	req_cancel_subs (req);	627	req_cancel_subs (req);
518	}	628	}
519		629
520	static void *aio_proc(void *arg);	630	X_THREAD_PROC (aio_proc);
521		631
522	static void start_thread (void)	632	static void start_thread (void)
523	{	633	{
524	sigset_t fullsigset, oldsigset;
525	pthread_attr_t attr;
526
527	worker *wrk = calloc (1, sizeof (worker));	634	worker *wrk = calloc (1, sizeof (worker));
528		635
529	if (!wrk)	636	if (!wrk)
530	croak ("unable to allocate worker thread data");	637	croak ("unable to allocate worker thread data");
531		638
532	pthread_attr_init (&attr);
533	pthread_attr_setstacksize (&attr, STACKSIZE);
534	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
535	#ifdef PTHREAD_SCOPE_PROCESS
536	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
537	#endif
538
539	sigfillset (&fullsigset);
540
541	LOCK (wrklock);	639	X_LOCK (wrklock);
542	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
543		640
544	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	641	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
545	{	642	{
546	wrk->prev = &wrk_first;	643	wrk->prev = &wrk_first;
547	wrk->next = wrk_first.next;	644	wrk->next = wrk_first.next;
548	wrk_first.next->prev = wrk;	645	wrk_first.next->prev = wrk;
549	wrk_first.next = wrk;	646	wrk_first.next = wrk;
550	++started;	647	++started;
551	}	648	}
552	else	649	else
553	free (wrk);	650	free (wrk);
554		651
555	sigprocmask (SIG_SETMASK, &oldsigset, 0);
556	UNLOCK (wrklock);	652	X_UNLOCK (wrklock);
557	}	653	}
558		654
559	static void maybe_start_thread ()	655	static void maybe_start_thread ()
560	{	656	{
561	#if 0	657	if (get_nthreads () >= wanted)
562	static struct timeval last;
563	struct timeval diff, now;
564	#endif
565
566	if (started >= wanted)
567	return;	658	return;
568		659
569	if (nready <= nreqs - get_nready () - get_npending ())	660	/* todo: maybe use idle here, but might be less exact */
		661	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
570	return;	662	return;
571		663
572	#if 0
573	gettimeofday (&now, 0);
574
575	diff.tv_sec = now.tv_sec - last.tv_sec;
576	diff.tv_usec = now.tv_usec - last.tv_usec;
577
578	if (diff.tv_usec < 0)
579	{
580	--diff.tv_sec;
581	diff.tv_usec += 1000000;
582	}
583
584	if (!diff.tv_sec && diff.tv_usec < 10000)
585	return;
586
587	last = now;
588	#endif
589
590	start_thread ();	664	start_thread ();
591	}	665	}
592		666
593	static void req_send (aio_req req)	667	static void req_send (aio_req req)
594	{	668	{
		669	block_sig ();
		670
595	++nreqs;	671	++nreqs;
596		672
597	LOCK (reqlock);	673	X_LOCK (reqlock);
598	++nready;	674	++nready;
599	reqq_push (&req_queue, req);	675	reqq_push (&req_queue, req);
600	pthread_cond_signal (&reqwait);	676	X_COND_SIGNAL (reqwait);
601	UNLOCK (reqlock);	677	X_UNLOCK (reqlock);
		678
		679	unblock_sig ();
602		680
603	maybe_start_thread ();	681	maybe_start_thread ();
604	}	682	}
605		683
606	static void end_thread (void)	684	static void end_thread (void)
…		…
610	Newz (0, req, 1, aio_cb);	688	Newz (0, req, 1, aio_cb);
611		689
612	req->type = REQ_QUIT;	690	req->type = REQ_QUIT;
613	req->pri = PRI_MAX + PRI_BIAS;	691	req->pri = PRI_MAX + PRI_BIAS;
614		692
615	req_send (req);	693	X_LOCK (reqlock);
		694	reqq_push (&req_queue, req);
		695	X_COND_SIGNAL (reqwait);
		696	X_UNLOCK (reqlock);
616		697
617	LOCK (wrklock);	698	X_LOCK (wrklock);
618	--started;	699	--started;
619	UNLOCK (wrklock);	700	X_UNLOCK (wrklock);
		701	}
		702
		703	static void set_max_idle (int nthreads)
		704	{
		705	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		706	max_idle = nthreads <= 0 ? 1 : nthreads;
		707	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
620	}	708	}
621		709
622	static void min_parallel (int nthreads)	710	static void min_parallel (int nthreads)
623	{	711	{
624	if (wanted < nthreads)	712	if (wanted < nthreads)
…		…
639	fd_set rfd;	727	fd_set rfd;
640		728
641	while (nreqs)	729	while (nreqs)
642	{	730	{
643	int size;	731	int size;
644	if (WORDREAD_UNSAFE) LOCK (reslock);	732	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
645	size = res_queue.size;	733	size = res_queue.size;
646	if (WORDREAD_UNSAFE) UNLOCK (reslock);	734	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
647		735
648	if (size)	736	if (size)
649	return;	737	return;
650		738
651	maybe_start_thread ();	739	maybe_start_thread ();
…		…
655		743
656	select (respipe [0] + 1, &rfd, 0, 0, 0);	744	select (respipe [0] + 1, &rfd, 0, 0, 0);
657	}	745	}
658	}	746	}
659		747
660	static int poll_cb (int max)	748	static int poll_cb ()
661	{	749	{
662	dSP;	750	dSP;
663	int count = 0;	751	int count = 0;
		752	int maxreqs = max_poll_reqs;
664	int do_croak = 0;	753	int do_croak = 0;
		754	struct timeval tv_start, tv_now;
665	aio_req req;	755	aio_req req;
		756
		757	if (max_poll_time)
		758	gettimeofday (&tv_start, 0);
		759
		760	block_sig ();
666		761
667	for (;;)	762	for (;;)
668	{	763	{
669	while (max <= 0 || count < max)	764	for (;;)
670	{	765	{
671	maybe_start_thread ();	766	maybe_start_thread ();
672		767
673	LOCK (reslock);	768	X_LOCK (reslock);
674	req = reqq_shift (&res_queue);	769	req = reqq_shift (&res_queue);
675		770
676	if (req)	771	if (req)
677	{	772	{
678	--npending;	773	--npending;
679		774
680	if (!res_queue.size)	775	if (!res_queue.size)
681	{	776	{
682	/* read any signals sent by the worker threads */	777	/* read any signals sent by the worker threads */
683	char buf [32];	778	char buf [4];
684	while (read (respipe [0], buf, 32) == 32)	779	while (read (respipe [0], buf, 4) == 4)
685	;	780	;
686	}	781	}
687	}	782	}
688		783
689	UNLOCK (reslock);	784	X_UNLOCK (reslock);
690		785
691	if (!req)	786	if (!req)
692	break;	787	break;
693		788
694	--nreqs;	789	--nreqs;
695		790
696	if (req->type == REQ_GROUP && req->length)	791	if (req->type == REQ_GROUP && req->size)
697	{	792	{
698	req->fd = 1; /* mark request as delayed */	793	req->int1 = 1; /* mark request as delayed */
699	continue;	794	continue;
700	}	795	}
701	else	796	else
702	{	797	{
703	if (req->type == REQ_READ)	798	if (!req_invoke (req))
704	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
705
706	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
707	SvREADONLY_off (req->data);
708
709	if (req->statdata)
710	{	799	{
711	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	800	req_destroy (req);
712	PL_laststatval = req->result;	801	unblock_sig ();
713	PL_statcache = *(req->statdata);	802	croak (0);
714	}	803	}
715
716	req_invoke (req);
717		804
718	count++;	805	count++;
719	}	806	}
720		807
721	req_free (req);	808	req_destroy (req);
		809
		810	if (maxreqs && !--maxreqs)
		811	break;
		812
		813	if (max_poll_time)
		814	{
		815	gettimeofday (&tv_now, 0);
		816
		817	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		818	break;
		819	}
722	}	820	}
723		821
724	if (nreqs <= max_outstanding)	822	if (nreqs <= max_outstanding)
725	break;	823	break;
726		824
727	poll_wait ();	825	poll_wait ();
728		826
729	max = 0;	827	++maxreqs;
730	}	828	}
731		829
		830	unblock_sig ();
732	return count;	831	return count;
733	}
734
735	static void create_pipe ()
736	{
737	if (pipe (respipe))
738	croak ("unable to initialize result pipe");
739
740	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
741	croak ("cannot set result pipe to nonblocking mode");
742
743	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
744	croak ("cannot set result pipe to nonblocking mode");
745	}	832	}
746		833
747	/*****************************************************************************/	834	/*****************************************************************************/
748	/* work around various missing functions */	835	/* work around various missing functions */
749		836
…		…
754	/*	841	/*
755	* make our pread/pwrite safe against themselves, but not against	842	* make our pread/pwrite safe against themselves, but not against
756	* normal read/write by using a mutex. slows down execution a lot,	843	* normal read/write by using a mutex. slows down execution a lot,
757	* but that's your problem, not mine.	844	* but that's your problem, not mine.
758	*/	845	*/
759	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	846	static mutex_t preadwritelock = X_MUTEX_INIT;
760		847
761	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	848	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
762	{	849	{
763	ssize_t res;	850	ssize_t res;
764	off_t ooffset;	851	off_t ooffset;
765		852
766	LOCK (preadwritelock);	853	X_LOCK (preadwritelock);
767	ooffset = lseek (fd, 0, SEEK_CUR);	854	ooffset = lseek (fd, 0, SEEK_CUR);
768	lseek (fd, offset, SEEK_SET);	855	lseek (fd, offset, SEEK_SET);
769	res = read (fd, buf, count);	856	res = read (fd, buf, count);
770	lseek (fd, ooffset, SEEK_SET);	857	lseek (fd, ooffset, SEEK_SET);
771	UNLOCK (preadwritelock);	858	X_UNLOCK (preadwritelock);
772		859
773	return res;	860	return res;
774	}	861	}
775		862
776	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	863	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
777	{	864	{
778	ssize_t res;	865	ssize_t res;
779	off_t ooffset;	866	off_t ooffset;
780		867
781	LOCK (preadwritelock);	868	X_LOCK (preadwritelock);
782	ooffset = lseek (fd, 0, SEEK_CUR);	869	ooffset = lseek (fd, 0, SEEK_CUR);
783	lseek (fd, offset, SEEK_SET);	870	lseek (fd, offset, SEEK_SET);
784	res = write (fd, buf, count);	871	res = write (fd, buf, count);
785	lseek (fd, offset, SEEK_SET);	872	lseek (fd, offset, SEEK_SET);
786	UNLOCK (preadwritelock);	873	X_UNLOCK (preadwritelock);
787		874
788	return res;	875	return res;
789	}	876	}
		877	#endif
		878
		879	#ifndef HAVE_FUTIMES
		880
		881	# define utimes(path,times) aio_utimes (path, times)
		882	# define futimes(fd,times) aio_futimes (fd, times)
		883
		884	int aio_utimes (const char *filename, const struct timeval times[2])
		885	{
		886	if (times)
		887	{
		888	struct utimbuf buf;
		889
		890	buf.actime = times[0].tv_sec;
		891	buf.modtime = times[1].tv_sec;
		892
		893	return utime (filename, &buf);
		894	}
		895	else
		896	return utime (filename, 0);
		897	}
		898
		899	int aio_futimes (int fd, const struct timeval tv[2])
		900	{
		901	errno = ENOSYS;
		902	return -1;
		903	}
		904
790	#endif	905	#endif
791		906
792	#if !HAVE_FDATASYNC	907	#if !HAVE_FDATASYNC
793	# define fdatasync fsync	908	# define fdatasync fsync
794	#endif	909	#endif
…		…
796	#if !HAVE_READAHEAD	911	#if !HAVE_READAHEAD
797	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	912	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
798		913
799	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	914	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
800	{	915	{
		916	size_t todo = count;
801	dBUF;	917	dBUF;
802		918
803	while (count > 0)	919	while (todo > 0)
804	{	920	{
805	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	921	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
806		922
807	pread (fd, aio_buf, len, offset);	923	pread (fd, aio_buf, len, offset);
808	offset += len;	924	offset += len;
809	count -= len;	925	todo -= len;
810	}	926	}
811		927
812	errno = 0;	928	errno = 0;
		929	return count;
813	}	930	}
814		931
815	#endif	932	#endif
816		933
817	#if !HAVE_READDIR_R	934	#if !HAVE_READDIR_R
818	# define readdir_r aio_readdir_r	935	# define readdir_r aio_readdir_r
819		936
820	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	937	static mutex_t readdirlock = X_MUTEX_INIT;
821		938
822	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	939	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
823	{	940	{
824	struct dirent *e;	941	X_DIRENT *e;
825	int errorno;	942	int errorno;
826		943
827	LOCK (readdirlock);	944	X_LOCK (readdirlock);
828		945
829	e = readdir (dirp);	946	e = readdir (dirp);
830	errorno = errno;	947	errorno = errno;
831		948
832	if (e)	949	if (e)
…		…
835	strcpy (ent->d_name, e->d_name);	952	strcpy (ent->d_name, e->d_name);
836	}	953	}
837	else	954	else
838	*res = 0;	955	*res = 0;
839		956
840	UNLOCK (readdirlock);	957	X_UNLOCK (readdirlock);
841		958
842	errno = errorno;	959	errno = errorno;
843	return e ? 0 : -1;	960	return e ? 0 : -1;
844	}	961	}
845	#endif	962	#endif
…		…
941	static void scandir_ (aio_req req, worker *self)	1058	static void scandir_ (aio_req req, worker *self)
942	{	1059	{
943	DIR *dirp;	1060	DIR *dirp;
944	union	1061	union
945	{	1062	{
946	struct dirent d;	1063	X_DIRENT d;
947	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1064	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
948	} *u;	1065	} *u;
949	struct dirent *entp;	1066	X_DIRENT *entp;
950	char *name, *names;	1067	char *name, *names;
951	int memlen = 4096;	1068	int memlen = 4096;
952	int memofs = 0;	1069	int memofs = 0;
953	int res = 0;	1070	int res = 0;
954	int errorno;
955		1071
956	LOCK (wrklock);	1072	X_LOCK (wrklock);
957	self->dirp = dirp = opendir (req->dataptr);	1073	self->dirp = dirp = opendir (req->ptr1);
958	self->dbuf = u = malloc (sizeof (*u));	1074	self->dbuf = u = malloc (sizeof (*u));
		1075	req->flags |= FLAG_PTR2_FREE;
959	req->data2ptr = names = malloc (memlen);	1076	req->ptr2 = names = malloc (memlen);
960	UNLOCK (wrklock);	1077	X_UNLOCK (wrklock);
961		1078
962	if (dirp && u && names)	1079	if (dirp && u && names)
963	for (;;)	1080	for (;;)
964	{	1081	{
965	errno = 0;	1082	errno = 0;
…		…
977	res++;	1094	res++;
978		1095
979	while (memofs + len > memlen)	1096	while (memofs + len > memlen)
980	{	1097	{
981	memlen *= 2;	1098	memlen *= 2;
982	LOCK (wrklock);	1099	X_LOCK (wrklock);
983	req->data2ptr = names = realloc (names, memlen);	1100	req->ptr2 = names = realloc (names, memlen);
984	UNLOCK (wrklock);	1101	X_UNLOCK (wrklock);
985		1102
986	if (!names)	1103	if (!names)
987	break;	1104	break;
988	}	1105	}
989		1106
…		…
998	req->result = res;	1115	req->result = res;
999	}	1116	}
1000		1117
1001	/*****************************************************************************/	1118	/*****************************************************************************/
1002		1119
1003	static void *aio_proc (void *thr_arg)	1120	X_THREAD_PROC (aio_proc)
1004	{	1121	{
		1122	{//D
1005	aio_req req;	1123	aio_req req;
		1124	struct timespec ts;
1006	worker *self = (worker *)thr_arg;	1125	worker *self = (worker *)thr_arg;
		1126
		1127	/* try to distribute timeouts somewhat randomly */
		1128	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1007		1129
1008	for (;;)	1130	for (;;)
1009	{	1131	{
		1132	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1133
1010	LOCK (reqlock);	1134	X_LOCK (reqlock);
1011		1135
1012	for (;;)	1136	for (;;)
1013	{	1137	{
1014	self->req = req = reqq_shift (&req_queue);	1138	self->req = req = reqq_shift (&req_queue);
1015		1139
1016	if (req)	1140	if (req)
1017	break;	1141	break;
1018		1142
1019	pthread_cond_wait (&reqwait, &reqlock);	1143	++idle;
		1144
		1145	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1146	== ETIMEDOUT)
		1147	{
		1148	if (idle > max_idle)
		1149	{
		1150	--idle;
		1151	X_UNLOCK (reqlock);
		1152	X_LOCK (wrklock);
		1153	--started;
		1154	X_UNLOCK (wrklock);
		1155	goto quit;
		1156	}
		1157
		1158	/* we are allowed to idle, so do so without any timeout */
		1159	X_COND_WAIT (reqwait, reqlock);
		1160	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1161	}
		1162
		1163	--idle;
1020	}	1164	}
1021		1165
1022	--nready;	1166	--nready;
1023		1167
1024	UNLOCK (reqlock);	1168	X_UNLOCK (reqlock);
1025		1169
1026	errno = 0; /* strictly unnecessary */	1170	errno = 0; /* strictly unnecessary */
1027		1171
1028	if (!(req->flags & FLAG_CANCELLED))	1172	if (!(req->flags & FLAG_CANCELLED))
1029	switch (req->type)	1173	switch (req->type)
1030	{	1174	{
1031	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1175	case REQ_READ: req->result = req->offs >= 0
1032	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1176	? pread (req->int1, req->ptr1, req->size, req->offs)
		1177	: read (req->int1, req->ptr1, req->size); break;
		1178	case REQ_WRITE: req->result = req->offs >= 0
		1179	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1180	: write (req->int1, req->ptr1, req->size); break;
1033		1181
1034	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1182	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1035	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1183	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1036		1184
1037	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1185	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1038	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1186	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1039	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1187	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1040		1188
		1189	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1190	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1191	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1192	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1193	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1194	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1195
1041	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1196	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1042	case REQ_CLOSE: req->result = close (req->fd); break;	1197	case REQ_CLOSE: req->result = close (req->int1); break;
1043	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1198	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1044	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1199	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1200	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1045	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1201	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1046	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1202	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1047	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1203	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1204	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1205	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1048		1206
1049	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1207	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1050	case REQ_FSYNC: req->result = fsync (req->fd); break;	1208	case REQ_FSYNC: req->result = fsync (req->int1); break;
1051	case REQ_READDIR: scandir_ (req, self); break;	1209	case REQ_READDIR: scandir_ (req, self); break;
1052		1210
1053	case REQ_BUSY:	1211	case REQ_BUSY:
		1212	#ifdef _WIN32
		1213	Sleep (req->nv1 * 1000.);
		1214	#else
1054	{	1215	{
1055	struct timeval tv;	1216	struct timeval tv;
1056		1217
1057	tv.tv_sec = req->fd;	1218	tv.tv_sec = req->nv1;
1058	tv.tv_usec = req->fd2;	1219	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1059		1220
1060	req->result = select (0, 0, 0, 0, &tv);	1221	req->result = select (0, 0, 0, 0, &tv);
		1222	}
		1223	#endif
		1224	break;
		1225
		1226	case REQ_UTIME:
		1227	case REQ_FUTIME:
		1228	{
		1229	struct timeval tv[2];
		1230	struct timeval *times;
		1231
		1232	if (req->nv1 != -1. || req->nv2 != -1.)
		1233	{
		1234	tv[0].tv_sec = req->nv1;
		1235	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1236	tv[1].tv_sec = req->nv2;
		1237	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1238
		1239	times = tv;
		1240	}
		1241	else
		1242	times = 0;
		1243
		1244
		1245	req->result = req->type == REQ_FUTIME
		1246	? futimes (req->int1, times)
		1247	: utimes (req->ptr1, times);
1061	}	1248	}
1062		1249
1063	case REQ_GROUP:	1250	case REQ_GROUP:
1064	case REQ_NOP:	1251	case REQ_NOP:
1065	break;	1252	break;
1066		1253
1067	case REQ_QUIT:	1254	case REQ_QUIT:
1068	LOCK (wrklock);	1255	goto quit;
1069	worker_free (self);
1070	--started;
1071	UNLOCK (wrklock);
1072	return 0;
1073		1256
1074	default:	1257	default:
1075	req->result = ENOSYS;	1258	req->result = -1;
1076	break;	1259	break;
1077	}	1260	}
1078		1261
1079	req->errorno = errno;	1262	req->errorno = errno;
1080		1263
1081	LOCK (reslock);	1264	X_LOCK (reslock);
1082		1265
1083	++npending;	1266	++npending;
1084		1267
1085	if (!reqq_push (&res_queue, req))	1268	if (!reqq_push (&res_queue, req))
		1269	{
1086	/* write a dummy byte to the pipe so fh becomes ready */	1270	/* write a dummy byte to the pipe so fh becomes ready */
1087	write (respipe [1], &respipe, 1);	1271	write (respipe [1], &respipe, 1);
		1272
		1273	/* optionally signal the main thread asynchronously */
		1274	if (main_sig)
		1275	pthread_kill (main_tid, main_sig);
		1276	}
1088		1277
1089	self->req = 0;	1278	self->req = 0;
1090	worker_clear (self);	1279	worker_clear (self);
1091		1280
1092	UNLOCK (reslock);	1281	X_UNLOCK (reslock);
1093	}	1282	}
		1283
		1284	quit:
		1285	X_LOCK (wrklock);
		1286	worker_free (self);
		1287	X_UNLOCK (wrklock);
		1288
		1289	return 0;
		1290	}//D
1094	}	1291	}
1095		1292
1096	/*****************************************************************************/	1293	/*****************************************************************************/
1097		1294
1098	static void atfork_prepare (void)	1295	static void atfork_prepare (void)
1099	{	1296	{
1100	LOCK (wrklock);	1297	X_LOCK (wrklock);
1101	LOCK (reqlock);	1298	X_LOCK (reqlock);
1102	LOCK (reslock);	1299	X_LOCK (reslock);
1103	#if !HAVE_PREADWRITE	1300	#if !HAVE_PREADWRITE
1104	LOCK (preadwritelock);	1301	X_LOCK (preadwritelock);
1105	#endif	1302	#endif
1106	#if !HAVE_READDIR_R	1303	#if !HAVE_READDIR_R
1107	LOCK (readdirlock);	1304	X_LOCK (readdirlock);
1108	#endif	1305	#endif
1109	}	1306	}
1110		1307
1111	static void atfork_parent (void)	1308	static void atfork_parent (void)
1112	{	1309	{
1113	#if !HAVE_READDIR_R	1310	#if !HAVE_READDIR_R
1114	UNLOCK (readdirlock);	1311	X_UNLOCK (readdirlock);
1115	#endif	1312	#endif
1116	#if !HAVE_PREADWRITE	1313	#if !HAVE_PREADWRITE
1117	UNLOCK (preadwritelock);	1314	X_UNLOCK (preadwritelock);
1118	#endif	1315	#endif
1119	UNLOCK (reslock);	1316	X_UNLOCK (reslock);
1120	UNLOCK (reqlock);	1317	X_UNLOCK (reqlock);
1121	UNLOCK (wrklock);	1318	X_UNLOCK (wrklock);
1122	}	1319	}
1123		1320
1124	static void atfork_child (void)	1321	static void atfork_child (void)
1125	{	1322	{
1126	aio_req prv;	1323	aio_req prv;
1127		1324
1128	while (prv = reqq_shift (&req_queue))	1325	while (prv = reqq_shift (&req_queue))
1129	req_free (prv);	1326	req_destroy (prv);
1130		1327
1131	while (prv = reqq_shift (&res_queue))	1328	while (prv = reqq_shift (&res_queue))
1132	req_free (prv);	1329	req_destroy (prv);
1133		1330
1134	while (wrk_first.next != &wrk_first)	1331	while (wrk_first.next != &wrk_first)
1135	{	1332	{
1136	worker *wrk = wrk_first.next;	1333	worker *wrk = wrk_first.next;
1137		1334
1138	if (wrk->req)	1335	if (wrk->req)
1139	req_free (wrk->req);	1336	req_destroy (wrk->req);
1140		1337
1141	worker_clear (wrk);	1338	worker_clear (wrk);
1142	worker_free (wrk);	1339	worker_free (wrk);
1143	}	1340	}
1144		1341
1145	started = 0;	1342	started = 0;
		1343	idle = 0;
1146	nreqs = 0;	1344	nreqs = 0;
		1345	nready = 0;
		1346	npending = 0;
1147		1347
1148	close (respipe [0]);	1348	close (respipe [0]);
1149	close (respipe [1]);	1349	close (respipe [1]);
1150	create_pipe ();	1350
		1351	if (!create_pipe (respipe))
		1352	croak ("cannot set result pipe to nonblocking mode");
1151		1353
1152	atfork_parent ();	1354	atfork_parent ();
1153	}	1355	}
1154		1356
1155	#define dREQ \	1357	#define dREQ \
…		…
1178	PROTOTYPES: ENABLE	1380	PROTOTYPES: ENABLE
1179		1381
1180	BOOT:	1382	BOOT:
1181	{	1383	{
1182	HV *stash = gv_stashpv ("IO::AIO", 1);	1384	HV *stash = gv_stashpv ("IO::AIO", 1);
		1385
1183	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1386	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1184	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1387	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1185	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1388	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1389	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1390	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1391	#ifdef _WIN32
		1392	X_MUTEX_CHECK (wrklock);
		1393	X_MUTEX_CHECK (reslock);
		1394	X_MUTEX_CHECK (reqlock);
		1395	X_MUTEX_CHECK (reqwait);
		1396	X_MUTEX_CHECK (preadwritelock);
		1397	X_MUTEX_CHECK (readdirlock);
		1398	#else
		1399	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1400	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1401	#endif
1186		1402
1187	create_pipe ();	1403	if (!create_pipe (respipe))
		1404	croak ("cannot set result pipe to nonblocking mode");
		1405
1188	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1406	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1189
1190	start_thread ();
1191	}	1407	}
		1408
		1409	void
		1410	max_poll_reqs (int nreqs)
		1411	PROTOTYPE: $
		1412	CODE:
		1413	max_poll_reqs = nreqs;
		1414
		1415	void
		1416	max_poll_time (double nseconds)
		1417	PROTOTYPE: $
		1418	CODE:
		1419	max_poll_time = nseconds * AIO_TICKS;
1192		1420
1193	void	1421	void
1194	min_parallel (int nthreads)	1422	min_parallel (int nthreads)
1195	PROTOTYPE: $	1423	PROTOTYPE: $
1196		1424
1197	void	1425	void
1198	max_parallel (int nthreads)	1426	max_parallel (int nthreads)
1199	PROTOTYPE: $	1427	PROTOTYPE: $
		1428
		1429	void
		1430	max_idle (int nthreads)
		1431	PROTOTYPE: $
		1432	CODE:
		1433	set_max_idle (nthreads);
1200		1434
1201	int	1435	int
1202	max_outstanding (int maxreqs)	1436	max_outstanding (int maxreqs)
1203	PROTOTYPE: $	1437	PROTOTYPE: $
1204	CODE:	1438	CODE:
…		…
1206	max_outstanding = maxreqs;	1440	max_outstanding = maxreqs;
1207	OUTPUT:	1441	OUTPUT:
1208	RETVAL	1442	RETVAL
1209		1443
1210	void	1444	void
1211	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1445	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1212	SV * pathname
1213	int flags
1214	int mode
1215	SV * callback
1216	PROTOTYPE: $$$;$	1446	PROTOTYPE: $$$;$
1217	PPCODE:	1447	PPCODE:
1218	{	1448	{
1219	dREQ;	1449	dREQ;
1220		1450
1221	req->type = REQ_OPEN;	1451	req->type = REQ_OPEN;
1222	req->data = newSVsv (pathname);	1452	req->sv1 = newSVsv (pathname);
1223	req->dataptr = SvPVbyte_nolen (req->data);	1453	req->ptr1 = SvPVbyte_nolen (req->sv1);
1224	req->fd = flags;	1454	req->int1 = flags;
1225	req->mode = mode;	1455	req->mode = mode;
1226		1456
1227	REQ_SEND;	1457	REQ_SEND;
1228	}	1458	}
1229		1459
1230	void	1460	void
1231	aio_close (fh,callback=&PL_sv_undef)	1461	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1232	SV * fh
1233	SV * callback
1234	PROTOTYPE: $;$	1462	PROTOTYPE: $;$
1235	ALIAS:	1463	ALIAS:
1236	aio_close = REQ_CLOSE	1464	aio_close = REQ_CLOSE
1237	aio_fsync = REQ_FSYNC	1465	aio_fsync = REQ_FSYNC
1238	aio_fdatasync = REQ_FDATASYNC	1466	aio_fdatasync = REQ_FDATASYNC
1239	PPCODE:	1467	PPCODE:
1240	{	1468	{
1241	dREQ;	1469	dREQ;
1242		1470
1243	req->type = ix;	1471	req->type = ix;
1244	req->fh = newSVsv (fh);	1472	req->sv1 = newSVsv (fh);
1245	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1473	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1246		1474
1247	REQ_SEND (req);	1475	REQ_SEND (req);
1248	}	1476	}
1249		1477
1250	void	1478	void
1251	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1252	SV * fh
1253	UV offset
1254	UV length
1255	SV * data
1256	UV dataoffset
1257	SV * callback
1258	ALIAS:	1480	ALIAS:
1259	aio_read = REQ_READ	1481	aio_read = REQ_READ
1260	aio_write = REQ_WRITE	1482	aio_write = REQ_WRITE
1261	PROTOTYPE: $$$$$;$	1483	PROTOTYPE: $$$$$;$
1262	PPCODE:	1484	PPCODE:
1263	{	1485	{
1264	aio_req req;
1265	STRLEN svlen;	1486	STRLEN svlen;
1266	char *svptr = SvPVbyte (data, svlen);	1487	char *svptr = SvPVbyte (data, svlen);
		1488	UV len = SvUV (length);
1267		1489
1268	SvUPGRADE (data, SVt_PV);	1490	SvUPGRADE (data, SVt_PV);
1269	SvPOK_on (data);	1491	SvPOK_on (data);
1270		1492
1271	if (dataoffset < 0)	1493	if (dataoffset < 0)
1272	dataoffset += svlen;	1494	dataoffset += svlen;
1273		1495
1274	if (dataoffset < 0 || dataoffset > svlen)	1496	if (dataoffset < 0 || dataoffset > svlen)
1275	croak ("data offset outside of string");	1497	croak ("dataoffset outside of data scalar");
1276		1498
1277	if (ix == REQ_WRITE)	1499	if (ix == REQ_WRITE)
1278	{	1500	{
1279	/* write: check length and adjust. */	1501	/* write: check length and adjust. */
1280	if (length < 0 || length + dataoffset > svlen)	1502	if (!SvOK (length) || len + dataoffset > svlen)
1281	length = svlen - dataoffset;	1503	len = svlen - dataoffset;
1282	}	1504	}
1283	else	1505	else
1284	{	1506	{
1285	/* read: grow scalar as necessary */	1507	/* read: grow scalar as necessary */
1286	svptr = SvGROW (data, length + dataoffset);	1508	svptr = SvGROW (data, len + dataoffset + 1);
1287	}	1509	}
1288		1510
1289	if (length < 0)	1511	if (len < 0)
1290	croak ("length must not be negative");	1512	croak ("length must not be negative");
1291		1513
1292	{	1514	{
1293	dREQ;	1515	dREQ;
1294		1516
1295	req->type = ix;	1517	req->type = ix;
1296	req->fh = newSVsv (fh);	1518	req->sv1 = newSVsv (fh);
1297	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1519	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1298	: IoOFP (sv_2io (fh)));	1520	: IoOFP (sv_2io (fh)));
		1521	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1299	req->offset = offset;	1522	req->size = len;
1300	req->length = length;
1301	req->data = SvREFCNT_inc (data);	1523	req->sv2 = SvREFCNT_inc (data);
1302	req->dataptr = (char *)svptr + dataoffset;	1524	req->ptr1 = (char *)svptr + dataoffset;
		1525	req->stroffset = dataoffset;
1303		1526
1304	if (!SvREADONLY (data))	1527	if (!SvREADONLY (data))
1305	{	1528	{
1306	SvREADONLY_on (data);	1529	SvREADONLY_on (data);
1307	req->data2ptr = (void *)data;	1530	req->flags |= FLAG_SV2_RO_OFF;
1308	}	1531	}
1309		1532
1310	REQ_SEND;	1533	REQ_SEND;
1311	}	1534	}
1312	}	1535	}
1313		1536
1314	void	1537	void
		1538	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1539	PROTOTYPE: $$;$
		1540	PPCODE:
		1541	{
		1542	SV *data;
		1543	dREQ;
		1544
		1545	data = newSV (NAME_MAX);
		1546	SvPOK_on (data);
		1547
		1548	req->type = REQ_READLINK;
		1549	req->sv1 = newSVsv (path);
		1550	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1551	req->sv2 = data;
		1552	req->ptr1 = SvPVbyte_nolen (data);
		1553
		1554	REQ_SEND;
		1555	}
		1556
		1557	void
1315	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1558	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1316	SV * out_fh
1317	SV * in_fh
1318	UV in_offset
1319	UV length
1320	SV * callback
1321	PROTOTYPE: $$$$;$	1559	PROTOTYPE: $$$$;$
1322	PPCODE:	1560	PPCODE:
1323	{	1561	{
1324	dREQ;	1562	dREQ;
1325		1563
1326	req->type = REQ_SENDFILE;	1564	req->type = REQ_SENDFILE;
1327	req->fh = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1328	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1329	req->fh2 = newSVsv (in_fh);	1567	req->sv2 = newSVsv (in_fh);
1330	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1568	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1331	req->offset = in_offset;	1569	req->offs = SvVAL64 (in_offset);
1332	req->length = length;	1570	req->size = length;
1333		1571
1334	REQ_SEND;	1572	REQ_SEND;
1335	}	1573	}
1336		1574
1337	void	1575	void
1338	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1339	SV * fh
1340	UV offset
1341	IV length
1342	SV * callback
1343	PROTOTYPE: $$$;$	1577	PROTOTYPE: $$$;$
1344	PPCODE:	1578	PPCODE:
1345	{	1579	{
1346	dREQ;	1580	dREQ;
1347		1581
1348	req->type = REQ_READAHEAD;	1582	req->type = REQ_READAHEAD;
1349	req->fh = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1350	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1584	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1351	req->offset = offset;	1585	req->offs = SvVAL64 (offset);
1352	req->length = length;	1586	req->size = length;
1353		1587
1354	REQ_SEND;	1588	REQ_SEND;
1355	}	1589	}
1356		1590
1357	void	1591	void
1358	aio_stat (fh_or_path,callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1359	SV * fh_or_path
1360	SV * callback
1361	ALIAS:	1593	ALIAS:
1362	aio_stat = REQ_STAT	1594	aio_stat = REQ_STAT
1363	aio_lstat = REQ_LSTAT	1595	aio_lstat = REQ_LSTAT
1364	PPCODE:	1596	PPCODE:
1365	{	1597	{
1366	dREQ;	1598	dREQ;
1367		1599
1368	New (0, req->statdata, 1, Stat_t);	1600	req->ptr2 = malloc (sizeof (Stat_t));
1369	if (!req->statdata)	1601	if (!req->ptr2)
1370	{	1602	{
1371	req_free (req);	1603	req_destroy (req);
1372	croak ("out of memory during aio_req->statdata allocation");	1604	croak ("out of memory during aio_stat statdata allocation");
1373	}	1605	}
		1606
		1607	req->flags |= FLAG_PTR2_FREE;
		1608	req->sv1 = newSVsv (fh_or_path);
1374		1609
1375	if (SvPOK (fh_or_path))	1610	if (SvPOK (fh_or_path))
1376	{	1611	{
1377	req->type = ix;	1612	req->type = ix;
1378	req->data = newSVsv (fh_or_path);
1379	req->dataptr = SvPVbyte_nolen (req->data);	1613	req->ptr1 = SvPVbyte_nolen (req->sv1);
1380	}	1614	}
1381	else	1615	else
1382	{	1616	{
1383	req->type = REQ_FSTAT;	1617	req->type = REQ_FSTAT;
1384	req->fh = newSVsv (fh_or_path);
1385	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1618	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1386	}	1619	}
1387		1620
1388	REQ_SEND;	1621	REQ_SEND;
1389	}	1622	}
1390		1623
1391	void	1624	void
		1625	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1626	PPCODE:
		1627	{
		1628	dREQ;
		1629
		1630	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1631	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1632	req->sv1 = newSVsv (fh_or_path);
		1633
		1634	if (SvPOK (fh_or_path))
		1635	{
		1636	req->type = REQ_UTIME;
		1637	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1638	}
		1639	else
		1640	{
		1641	req->type = REQ_FUTIME;
		1642	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1643	}
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
		1649	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1650	PPCODE:
		1651	{
		1652	dREQ;
		1653
		1654	req->sv1 = newSVsv (fh_or_path);
		1655	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1656
		1657	if (SvPOK (fh_or_path))
		1658	{
		1659	req->type = REQ_TRUNCATE;
		1660	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1661	}
		1662	else
		1663	{
		1664	req->type = REQ_FTRUNCATE;
		1665	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1666	}
		1667
		1668	REQ_SEND;
		1669	}
		1670
		1671	void
		1672	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1673	PPCODE:
		1674	{
		1675	dREQ;
		1676
		1677	req->mode = mode;
		1678	req->sv1 = newSVsv (fh_or_path);
		1679
		1680	if (SvPOK (fh_or_path))
		1681	{
		1682	req->type = REQ_CHMOD;
		1683	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1684	}
		1685	else
		1686	{
		1687	req->type = REQ_FCHMOD;
		1688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1689	}
		1690
		1691	REQ_SEND;
		1692	}
		1693
		1694	void
		1695	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1696	PPCODE:
		1697	{
		1698	dREQ;
		1699
		1700	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1701	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1702	req->sv1 = newSVsv (fh_or_path);
		1703
		1704	if (SvPOK (fh_or_path))
		1705	{
		1706	req->type = REQ_CHOWN;
		1707	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1708	}
		1709	else
		1710	{
		1711	req->type = REQ_FCHOWN;
		1712	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1713	}
		1714
		1715	REQ_SEND;
		1716	}
		1717
		1718	void
1392	aio_unlink (pathname,callback=&PL_sv_undef)	1719	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1393	SV * pathname
1394	SV * callback
1395	ALIAS:	1720	ALIAS:
1396	aio_unlink = REQ_UNLINK	1721	aio_unlink = REQ_UNLINK
1397	aio_rmdir = REQ_RMDIR	1722	aio_rmdir = REQ_RMDIR
1398	aio_readdir = REQ_READDIR	1723	aio_readdir = REQ_READDIR
1399	PPCODE:	1724	PPCODE:
1400	{	1725	{
1401	dREQ;	1726	dREQ;
1402		1727
1403	req->type = ix;	1728	req->type = ix;
1404	req->data = newSVsv (pathname);	1729	req->sv1 = newSVsv (pathname);
1405	req->dataptr = SvPVbyte_nolen (req->data);	1730	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1731
		1732	REQ_SEND;
		1733	}
		1734
		1735	void
		1736	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1737	PPCODE:
		1738	{
		1739	dREQ;
1406		1740
		1741	req->type = REQ_MKDIR;
		1742	req->sv1 = newSVsv (pathname);
		1743	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1744	req->mode = mode;
		1745
1407	REQ_SEND;	1746	REQ_SEND;
1408	}	1747	}
1409		1748
1410	void	1749	void
1411	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1750	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1412	SV * oldpath
1413	SV * newpath
1414	SV * callback
1415	ALIAS:	1751	ALIAS:
1416	aio_link = REQ_LINK	1752	aio_link = REQ_LINK
1417	aio_symlink = REQ_SYMLINK	1753	aio_symlink = REQ_SYMLINK
1418	aio_rename = REQ_RENAME	1754	aio_rename = REQ_RENAME
1419	PPCODE:	1755	PPCODE:
1420	{	1756	{
1421	dREQ;	1757	dREQ;
1422		1758
1423	req->type = ix;	1759	req->type = ix;
1424	req->fh = newSVsv (oldpath);	1760	req->sv2 = newSVsv (oldpath);
1425	req->data2ptr = SvPVbyte_nolen (req->fh);	1761	req->ptr2 = SvPVbyte_nolen (req->sv2);
1426	req->data = newSVsv (newpath);	1762	req->sv1 = newSVsv (newpath);
1427	req->dataptr = SvPVbyte_nolen (req->data);	1763	req->ptr1 = SvPVbyte_nolen (req->sv1);
1428		1764
1429	REQ_SEND;	1765	REQ_SEND;
1430	}	1766	}
1431		1767
1432	void	1768	void
1433	aio_busy (delay,callback=&PL_sv_undef)	1769	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1434	double delay
1435	SV * callback
1436	PPCODE:	1770	PPCODE:
1437	{	1771	{
1438	dREQ;	1772	dREQ;
		1773
		1774	req->type = REQ_MKNOD;
		1775	req->sv1 = newSVsv (pathname);
		1776	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1777	req->mode = (mode_t)mode;
		1778	req->offs = dev;
		1779
		1780	REQ_SEND;
		1781	}
		1782
		1783	void
		1784	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1785	PPCODE:
		1786	{
		1787	dREQ;
1439		1788
1440	req->type = REQ_BUSY;	1789	req->type = REQ_BUSY;
1441	req->fd = delay < 0. ? 0 : delay;	1790	req->nv1 = delay < 0. ? 0. : delay;
1442	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1443		1791
1444	REQ_SEND;	1792	REQ_SEND;
1445	}	1793	}
1446		1794
1447	void	1795	void
1448	aio_group (callback=&PL_sv_undef)	1796	aio_group (SV *callback=&PL_sv_undef)
1449	SV * callback
1450	PROTOTYPE: ;$	1797	PROTOTYPE: ;$
1451	PPCODE:	1798	PPCODE:
1452	{	1799	{
1453	dREQ;	1800	dREQ;
1454		1801
1455	req->type = REQ_GROUP;	1802	req->type = REQ_GROUP;
		1803
1456	req_send (req);	1804	req_send (req);
1457
1458	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1805	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1459	}	1806	}
1460		1807
1461	void	1808	void
1462	aio_nop (callback=&PL_sv_undef)	1809	aio_nop (SV *callback=&PL_sv_undef)
1463	SV * callback
1464	PPCODE:	1810	PPCODE:
1465	{	1811	{
1466	dREQ;	1812	dREQ;
1467		1813
1468	req->type = REQ_NOP;	1814	req->type = REQ_NOP;
…		…
1497	PROTOTYPE:	1843	PROTOTYPE:
1498	CODE:	1844	CODE:
1499	while (nreqs)	1845	while (nreqs)
1500	{	1846	{
1501	poll_wait ();	1847	poll_wait ();
1502	poll_cb (0);	1848	poll_cb ();
1503	}	1849	}
1504		1850
1505	void	1851	int
1506	poll()	1852	poll()
1507	PROTOTYPE:	1853	PROTOTYPE:
1508	CODE:	1854	CODE:
1509	if (nreqs)
1510	{
1511	poll_wait ();	1855	poll_wait ();
1512	poll_cb (0);	1856	RETVAL = poll_cb ();
1513	}	1857	OUTPUT:
		1858	RETVAL
1514		1859
1515	int	1860	int
1516	poll_fileno()	1861	poll_fileno()
1517	PROTOTYPE:	1862	PROTOTYPE:
1518	CODE:	1863	CODE:
…		…
1522		1867
1523	int	1868	int
1524	poll_cb(...)	1869	poll_cb(...)
1525	PROTOTYPE:	1870	PROTOTYPE:
1526	CODE:	1871	CODE:
1527	RETVAL = poll_cb (0);	1872	RETVAL = poll_cb ();
1528	OUTPUT:
1529	RETVAL
1530
1531	int
1532	poll_some(int max = 0)
1533	PROTOTYPE: $
1534	CODE:
1535	RETVAL = poll_cb (max);
1536	OUTPUT:	1873	OUTPUT:
1537	RETVAL	1874	RETVAL
1538		1875
1539	void	1876	void
1540	poll_wait()	1877	poll_wait()
1541	PROTOTYPE:	1878	PROTOTYPE:
1542	CODE:	1879	CODE:
1543	if (nreqs)
1544	poll_wait ();	1880	poll_wait ();
		1881
		1882	void
		1883	setsig (int signum = SIGIO)
		1884	PROTOTYPE: ;$
		1885	CODE:
		1886	{
		1887	if (block_sig_level)
		1888	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1889
		1890	X_LOCK (reslock);
		1891	main_tid = pthread_self ();
		1892	main_sig = signum;
		1893	X_UNLOCK (reslock);
		1894
		1895	if (main_sig && npending)
		1896	pthread_kill (main_tid, main_sig);
		1897	}
		1898
		1899	void
		1900	aio_block (SV *cb)
		1901	PROTOTYPE: &
		1902	PPCODE:
		1903	{
		1904	int count;
		1905
		1906	block_sig ();
		1907	PUSHMARK (SP);
		1908	PUTBACK;
		1909	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		1910	SPAGAIN;
		1911	unblock_sig ();
		1912
		1913	if (SvTRUE (ERRSV))
		1914	croak (0);
		1915
		1916	XSRETURN (count);
		1917	}
1545		1918
1546	int	1919	int
1547	nreqs()	1920	nreqs()
1548	PROTOTYPE:	1921	PROTOTYPE:
1549	CODE:	1922	CODE:
…		…
1565	CODE:	1938	CODE:
1566	RETVAL = get_npending ();	1939	RETVAL = get_npending ();
1567	OUTPUT:	1940	OUTPUT:
1568	RETVAL	1941	RETVAL
1569		1942
		1943	int
		1944	nthreads()
		1945	PROTOTYPE:
		1946	CODE:
		1947	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		1948	RETVAL = started;
		1949	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		1950	OUTPUT:
		1951	RETVAL
		1952
1570	PROTOTYPES: DISABLE	1953	PROTOTYPES: DISABLE
1571		1954
1572	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1955	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1573		1956
1574	void	1957	void
…		…
1589	PPCODE:	1972	PPCODE:
1590	{	1973	{
1591	int i;	1974	int i;
1592	aio_req req;	1975	aio_req req;
1593		1976
		1977	if (main_sig && !block_sig_level)
		1978	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		1979
1594	if (grp->fd == 2)	1980	if (grp->int1 == 2)
1595	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1981	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1596		1982
1597	for (i = 1; i < items; ++i )	1983	for (i = 1; i < items; ++i )
1598	{	1984	{
1599	if (GIMME_V != G_VOID)	1985	if (GIMME_V != G_VOID)
…		…
1601		1987
1602	req = SvAIO_REQ (ST (i));	1988	req = SvAIO_REQ (ST (i));
1603		1989
1604	if (req)	1990	if (req)
1605	{	1991	{
1606	++grp->length;	1992	++grp->size;
1607	req->grp = grp;	1993	req->grp = grp;
1608		1994
1609	req->grp_prev = 0;	1995	req->grp_prev = 0;
1610	req->grp_next = grp->grp_first;	1996	req->grp_next = grp->grp_first;
1611		1997
…		…
1634	av = newAV ();	2020	av = newAV ();
1635		2021
1636	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1637	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1638		2024
1639	SvREFCNT_dec (grp->data);	2025	SvREFCNT_dec (grp->sv1);
1640	grp->data = (SV *)av;	2026	grp->sv1 = (SV *)av;
1641	}	2027	}
1642		2028
1643	void	2029	void
1644	errno (aio_req grp, int errorno = errno)	2030	errno (aio_req grp, int errorno = errno)
1645	CODE:	2031	CODE:
1646	grp->errorno = errorno;	2032	grp->errorno = errorno;
1647		2033
1648	void	2034	void
1649	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1650	CODE:	2036	CODE:
1651	grp->fd2 = limit;	2037	grp->int2 = limit;
1652	aio_grp_feed (grp);	2038	aio_grp_feed (grp);
1653		2039
1654	void	2040	void
1655	feed (aio_req grp, SV *callback=&PL_sv_undef)	2041	feed (aio_req grp, SV *callback=&PL_sv_undef)
1656	CODE:	2042	CODE:
1657	{	2043	{
1658	SvREFCNT_dec (grp->fh2);	2044	SvREFCNT_dec (grp->sv2);
1659	grp->fh2 = newSVsv (callback);	2045	grp->sv2 = newSVsv (callback);
1660		2046
1661	if (grp->fd2 <= 0)	2047	if (grp->int2 <= 0)
1662	grp->fd2 = 2;	2048	grp->int2 = 2;
1663		2049
1664	aio_grp_feed (grp);	2050	aio_grp_feed (grp);
1665	}	2051	}
1666		2052

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