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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.73 by root, Tue Oct 24 21:26:30 2006 UTC vs.
Revision 1.113 by root, Wed Apr 16 16:45:18 2008 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux
5	# define _GNU_SOURCE
6	#endif
7
8	#define _REENTRANT 1
9		2
10	#include <errno.h>	3	#include <errno.h>
11		4
12	#include "EXTERN.h"	5	#include "EXTERN.h"
13	#include "perl.h"	6	#include "perl.h"
14	#include "XSUB.h"	7	#include "XSUB.h"
15		8
16	#include "autoconf/config.h"
17
18	#include <pthread.h>
19
20	#include <stddef.h>	9	#include <stddef.h>
		10	#include <stdlib.h>
21	#include <errno.h>	11	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	12	#include <sys/types.h>
25	#include <sys/stat.h>	13	#include <sys/stat.h>
26	#include <limits.h>	14	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	15	#include <fcntl.h>
29	#include <signal.h>
30	#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
31		68
32	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
33	# if __linux	70	# if __linux
34	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
35	# elif __freebsd	72	# elif __freebsd
…		…
42	# else	79	# else
43	# error sendfile support requested but not available	80	# error sendfile support requested but not available
44	# endif	81	# endif
45	#endif	82	#endif
46		83
		84	/* number of seconds after which idle threads exit */
		85	#define IDLE_TIMEOUT 10
		86
47	/* used for struct dirent, AIX doesn't provide it */	87	/* used for struct dirent, AIX doesn't provide it */
48	#ifndef NAME_MAX	88	#ifndef NAME_MAX
49	# define NAME_MAX 4096	89	# define NAME_MAX 4096
50	#endif	90	#endif
51		91
52	#if __ia64
53	# define STACKSIZE 65536
54	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55	# define STACKSIZE PTHREAD_STACK_MIN
56	#else
57	# define STACKSIZE 16384
58	#endif
59
60	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
61	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
62		94
		95	/* use NV for 32 bit perls as it allows larger offsets */
		96	#if IVSIZE >= 8
		97	# define SvVAL64 SvIV
		98	#else
		99	# define SvVAL64 SvNV
		100	#endif
		101
		102	static HV *stash;
		103
63	#define dBUF \	104	#define dBUF \
64	char *aio_buf; \	105	char *aio_buf; \
65	LOCK (wrklock); \	106	X_LOCK (wrklock); \
66	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
67	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
68	if (!aio_buf) \	109	if (!aio_buf) \
69	return -1;	110	return -1;
		111
		112	typedef SV SV8; /* byte-sv, used for argument-checking */
70		113
71	enum {	114	enum {
72	REQ_QUIT,	115	REQ_QUIT,
73	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
74	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
75	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
76	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	119	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		120	REQ_TRUNCATE, REQ_FTRUNCATE,
		121	REQ_UTIME, REQ_FUTIME,
		122	REQ_CHMOD, REQ_FCHMOD,
		123	REQ_CHOWN, REQ_FCHOWN,
77	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
78	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79	REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
80	REQ_LINK, REQ_SYMLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
82	REQ_BUSY,	129	REQ_BUSY,
83	};	130	};
84		131
85	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	#define AIO_REQ_KLASS "IO::AIO::REQ"
…		…
87		134
88	typedef struct aio_cb	135	typedef struct aio_cb
89	{	136	{
90	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
91		138
92	SV *data, *callback;	139	SV *callback;
93	SV *fh, *fh2;	140	SV *sv1, *sv2;
94	void *dataptr, *data2ptr;	141	void *ptr1, *ptr2;
95	Stat_t *statdata;
96	off_t offset;	142	off_t offs;
97	size_t length;	143	size_t size;
98	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
99		146
100	STRLEN dataoffset;	147	STRLEN stroffset;
101	int type;	148	int type;
102	int fd, fd2;	149	int int1, int2, int3;
103	int errorno;	150	int errorno;
104	mode_t mode; /* open */	151	mode_t mode; /* open */
105		152
106	unsigned char flags;	153	unsigned char flags;
107	unsigned char pri;	154	unsigned char pri;
…		…
109	SV *self; /* the perl counterpart of this request, if any */	156	SV *self; /* the perl counterpart of this request, if any */
110	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
111	} aio_cb;	158	} aio_cb;
112		159
113	enum {	160	enum {
114	FLAG_CANCELLED = 0x01,	161	FLAG_CANCELLED = 0x01, /* request was cancelled */
		162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
115	};	164	};
116		165
117	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
118	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
119		168
…		…
124	DEFAULT_PRI = 0,	173	DEFAULT_PRI = 0,
125	PRI_BIAS = -PRI_MIN,	174	PRI_BIAS = -PRI_MIN,
126	NUM_PRI = PRI_MAX + PRI_BIAS + 1,	175	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
127	};	176	};
128		177
		178	#define AIO_TICKS ((1000000 + 1023) >> 10)
		179
		180	static unsigned int max_poll_time = 0;
		181	static unsigned int max_poll_reqs = 0;
		182
		183	/* calculcate time difference in ~1/AIO_TICKS of a second */
		184	static int tvdiff (struct timeval *tv1, struct timeval *tv2)
		185	{
		186	return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
		187	+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
		188	}
		189
		190	static thread_t main_tid;
		191	static int main_sig;
		192	static int block_sig_level;
		193
		194	void block_sig (void)
		195	{
		196	sigset_t ss;
		197
		198	if (block_sig_level++)
		199	return;
		200
		201	if (!main_sig)
		202	return;
		203
		204	sigemptyset (&ss);
		205	sigaddset (&ss, main_sig);
		206	pthread_sigmask (SIG_BLOCK, &ss, 0);
		207	}
		208
		209	void unblock_sig (void)
		210	{
		211	sigset_t ss;
		212
		213	if (--block_sig_level)
		214	return;
		215
		216	if (!main_sig)
		217	return;
		218
		219	sigemptyset (&ss);
		220	sigaddset (&ss, main_sig);
		221	pthread_sigmask (SIG_UNBLOCK, &ss, 0);
		222	}
		223
129	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
130		225
131	static int started, wanted;	226	static unsigned int started, idle, wanted;
132	static volatile int nreqs;
133	static int max_outstanding = 1<<30;
134	static int respipe [2];
135		227
136	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
137	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
138	#else
139	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
140	#endif
141
142	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
143	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
144
145	/* worker threasd management */	228	/* worker threads management */
146	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
147		230
148	typedef struct worker {	231	typedef struct worker {
149	/* locked by wrklock */	232	/* locked by wrklock */
150	struct worker *prev, *next;	233	struct worker *prev, *next;
151		234
152	pthread_t tid;	235	thread_t tid;
153		236
154	/* locked by reslock, reqlock or wrklock */	237	/* locked by reslock, reqlock or wrklock */
155	aio_req req; /* currently processed request */	238	aio_req req; /* currently processed request */
156	void *dbuf;	239	void *dbuf;
157	DIR *dirp;	240	DIR *dirp;
…		…
180	wrk->prev->next = wrk->next;	263	wrk->prev->next = wrk->next;
181		264
182	free (wrk);	265	free (wrk);
183	}	266	}
184		267
		268	static volatile unsigned int nreqs, nready, npending;
		269	static volatile unsigned int max_idle = 4;
		270	static volatile unsigned int max_outstanding = 0xffffffff;
		271	static int respipe_osf [2], respipe [2] = { -1, -1 };
		272
185	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
186	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
187	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	275	static cond_t reqwait = X_COND_INIT;
		276
		277	#if WORDACCESS_UNSAFE
		278
		279	static unsigned int get_nready (void)
		280	{
		281	unsigned int retval;
		282
		283	X_LOCK (reqlock);
		284	retval = nready;
		285	X_UNLOCK (reqlock);
		286
		287	return retval;
		288	}
		289
		290	static unsigned int get_npending (void)
		291	{
		292	unsigned int retval;
		293
		294	X_LOCK (reslock);
		295	retval = npending;
		296	X_UNLOCK (reslock);
		297
		298	return retval;
		299	}
		300
		301	static unsigned int get_nthreads (void)
		302	{
		303	unsigned int retval;
		304
		305	X_LOCK (wrklock);
		306	retval = started;
		307	X_UNLOCK (wrklock);
		308
		309	return retval;
		310	}
		311
		312	#else
		313
		314	# define get_nready() nready
		315	# define get_npending() npending
		316	# define get_nthreads() started
		317
		318	#endif
188		319
189	/*	320	/*
190	* a somewhat faster data structure might be nice, but	321	* a somewhat faster data structure might be nice, but
191	* with 8 priorities this actually needs <20 insns	322	* with 8 priorities this actually needs <20 insns
192	* per shift, the most expensive operation.	323	* per shift, the most expensive operation.
…		…
238	}	369	}
239		370
240	abort ();	371	abort ();
241	}	372	}
242		373
		374	static int poll_cb (void);
243	static void req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
244	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
245	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
246		378
247	/* must be called at most once */	379	/* must be called at most once */
248	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
249	{	381	{
…		…
268	return mg ? (aio_req)mg->mg_ptr : 0;	400	return mg ? (aio_req)mg->mg_ptr : 0;
269	}	401	}
270		402
271	static void aio_grp_feed (aio_req grp)	403	static void aio_grp_feed (aio_req grp)
272	{	404	{
		405	block_sig ();
		406
273	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	407	while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
274	{	408	{
275	int old_len = grp->length;	409	int old_len = grp->size;
276		410
277	if (grp->fh2 && SvOK (grp->fh2))	411	if (grp->sv2 && SvOK (grp->sv2))
278	{	412	{
279	dSP;	413	dSP;
280		414
281	ENTER;	415	ENTER;
282	SAVETMPS;	416	SAVETMPS;
283	PUSHMARK (SP);	417	PUSHMARK (SP);
284	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	418	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
285	PUTBACK;	419	PUTBACK;
286	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	420	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
287	SPAGAIN;	421	SPAGAIN;
288	FREETMPS;	422	FREETMPS;
289	LEAVE;	423	LEAVE;
290	}	424	}
291		425
292	/* stop if no progress has been made */	426	/* stop if no progress has been made */
293	if (old_len == grp->length)	427	if (old_len == grp->size)
294	{	428	{
295	SvREFCNT_dec (grp->fh2);	429	SvREFCNT_dec (grp->sv2);
296	grp->fh2 = 0;	430	grp->sv2 = 0;
297	break;	431	break;
298	}	432	}
299	}	433	}
		434
		435	unblock_sig ();
300	}	436	}
301		437
302	static void aio_grp_dec (aio_req grp)	438	static void aio_grp_dec (aio_req grp)
303	{	439	{
304	--grp->length;	440	--grp->size;
305		441
306	/* call feeder, if applicable */	442	/* call feeder, if applicable */
307	aio_grp_feed (grp);	443	aio_grp_feed (grp);
308		444
309	/* finish, if done */	445	/* finish, if done */
310	if (!grp->length && grp->fd)	446	if (!grp->size && grp->int1)
311	{	447	{
		448	block_sig ();
		449
312	req_invoke (grp);	450	if (!req_invoke (grp))
		451	{
		452	req_destroy (grp);
		453	unblock_sig ();
		454	croak (0);
		455	}
		456
313	req_free (grp);	457	req_destroy (grp);
		458	unblock_sig ();
314	}	459	}
315	}	460	}
316		461
317	static void poll_wait ()
318	{
319	fd_set rfd;
320
321	while (nreqs)
322	{
323	int size;
324	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
325	LOCK (reslock);
326	#endif
327	size = res_queue.size;
328	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
329	UNLOCK (reslock);
330	#endif
331
332	if (size)
333	return;
334
335	FD_ZERO(&rfd);
336	FD_SET(respipe [0], &rfd);
337
338	select (respipe [0] + 1, &rfd, 0, 0, 0);
339	}
340	}
341
342	static void req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
343	{	463	{
344	dSP;	464	dSP;
		465
		466	if (req->flags & FLAG_SV2_RO_OFF)
		467	SvREADONLY_off (req->sv2);
345		468
346	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
347	{	470	{
348	errno = req->errorno;
349
350	ENTER;	471	ENTER;
351	SAVETMPS;	472	SAVETMPS;
352	PUSHMARK (SP);	473	PUSHMARK (SP);
353	EXTEND (SP, 1);	474	EXTEND (SP, 1);
354		475
…		…
359	SV *rv = &PL_sv_undef;	480	SV *rv = &PL_sv_undef;
360		481
361	if (req->result >= 0)	482	if (req->result >= 0)
362	{	483	{
363	int i;	484	int i;
364	char *buf = req->data2ptr;	485	char *buf = req->ptr2;
365	AV *av = newAV ();	486	AV *av = newAV ();
366		487
367	av_extend (av, req->result - 1);	488	av_extend (av, req->result - 1);
368		489
369	for (i = 0; i < req->result; ++i)	490	for (i = 0; i < req->result; ++i)
…		…
382	break;	503	break;
383		504
384	case REQ_OPEN:	505	case REQ_OPEN:
385	{	506	{
386	/* convert fd to fh */	507	/* convert fd to fh */
387	SV *fh;	508	SV *fh = &PL_sv_undef;
388		509
389	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
390	PUTBACK;	511	{
391	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
392	SPAGAIN;	513	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		514	char sym [64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
		518	gv_init (gv, stash, sym, symlen, 0);
393		519
394	fh = SvREFCNT_inc (POPs);	520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	req->result
		526	);
395		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
396	PUSHMARK (SP);	532	PUSHs (fh);
397	XPUSHs (sv_2mortal (fh));
398	}	533	}
399	break;	534	break;
400		535
401	case REQ_GROUP:	536	case REQ_GROUP:
402	req->fd = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
403		538
404	if (req->data)	539	if (req->sv1)
405	{	540	{
406	int i;	541	int i;
407	AV *av = (AV *)req->data;	542	AV *av = (AV *)req->sv1;
408		543
409	EXTEND (SP, AvFILL (av) + 1);	544	EXTEND (SP, AvFILL (av) + 1);
410	for (i = 0; i <= AvFILL (av); ++i)	545	for (i = 0; i <= AvFILL (av); ++i)
411	PUSHs (*av_fetch (av, i, 0));	546	PUSHs (*av_fetch (av, i, 0));
412	}	547	}
…		…
414		549
415	case REQ_NOP:	550	case REQ_NOP:
416	case REQ_BUSY:	551	case REQ_BUSY:
417	break;	552	break;
418		553
		554	case REQ_READLINK:
		555	if (req->result > 0)
		556	{
		557	SvCUR_set (req->sv2, req->result);
		558	*SvEND (req->sv2) = 0;
		559	PUSHs (req->sv2);
		560	}
		561	break;
		562
		563	case REQ_STAT:
		564	case REQ_LSTAT:
		565	case REQ_FSTAT:
		566	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		567	PL_laststatval = req->result;
		568	PL_statcache = *(Stat_t *)(req->ptr2);
		569	PUSHs (sv_2mortal (newSViv (req->result)));
		570	break;
		571
		572	case REQ_READ:
		573	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		574	*SvEND (req->sv2) = 0;
		575	PUSHs (sv_2mortal (newSViv (req->result)));
		576	break;
		577
419	default:	578	default:
420	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
421	break;	580	break;
422	}	581	}
423		582
		583	errno = req->errorno;
424		584
425	PUTBACK;	585	PUTBACK;
426	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
427	SPAGAIN;	587	SPAGAIN;
428		588
429	FREETMPS;	589	FREETMPS;
430	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
431	}	593	}
432		594
433	if (req->grp)	595	if (req->grp)
434	{	596	{
435	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
442	grp->grp_first = req->grp_next;	604	grp->grp_first = req->grp_next;
443		605
444	aio_grp_dec (grp);	606	aio_grp_dec (grp);
445	}	607	}
446		608
447	if (SvTRUE (ERRSV))	609	return !SvTRUE (ERRSV);
448	{
449	req_free (req);
450	croak (0);
451	}
452	}	610	}
453		611
454	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
455	{	613	{
456	if (req->self)	614	if (req->self)
457	{	615	{
458	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
459	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
460	}	618	}
461		619
462	SvREFCNT_dec (req->data);
463	SvREFCNT_dec (req->fh);	620	SvREFCNT_dec (req->sv1);
464	SvREFCNT_dec (req->fh2);	621	SvREFCNT_dec (req->sv2);
465	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
466	Safefree (req->statdata);
467		623
468	if (req->type == REQ_READDIR)	624	if (req->flags & FLAG_PTR2_FREE)
469	free (req->data2ptr);	625	free (req->ptr2);
470		626
471	Safefree (req);	627	Safefree (req);
472	}	628	}
473		629
474	static void req_cancel_subs (aio_req grp)	630	static void req_cancel_subs (aio_req grp)
…		…
476	aio_req sub;	632	aio_req sub;
477		633
478	if (grp->type != REQ_GROUP)	634	if (grp->type != REQ_GROUP)
479	return;	635	return;
480		636
481	SvREFCNT_dec (grp->fh2);	637	SvREFCNT_dec (grp->sv2);
482	grp->fh2 = 0;	638	grp->sv2 = 0;
483		639
484	for (sub = grp->grp_first; sub; sub = sub->grp_next)	640	for (sub = grp->grp_first; sub; sub = sub->grp_next)
485	req_cancel (sub);	641	req_cancel (sub);
486	}	642	}
487		643
…		…
490	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
491		647
492	req_cancel_subs (req);	648	req_cancel_subs (req);
493	}	649	}
494		650
495	static int poll_cb ()	651	#ifdef USE_SOCKETS_AS_HANDLES
496	{	652	# define TO_SOCKET(x) (win32_get_osfhandle (x))
497	dSP;	653	#else
498	int count = 0;	654	# define TO_SOCKET(x) (x)
499	int do_croak = 0;	655	#endif
500	aio_req req;
501		656
502	for (;;)	657	static void
		658	create_respipe (void)
		659	{
		660	int old_readfd = respipe [0];
		661
		662	if (respipe [1] >= 0)
		663	respipe_close (TO_SOCKET (respipe [1]));
		664
		665	#ifdef _WIN32
		666	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		667	#else
		668	if (pipe (respipe))
		669	#endif
		670	croak ("unable to initialize result pipe");
		671
		672	if (old_readfd >= 0)
503	{	673	{
504	LOCK (reslock);	674	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
505	req = reqq_shift (&res_queue);	675	croak ("unable to initialize result pipe(2)");
506		676
507	if (req)	677	respipe_close (respipe [0]);
508	{	678	respipe [0] = old_readfd;
509	if (!res_queue.size)
510	{
511	/* read any signals sent by the worker threads */
512	char buf [32];
513	while (read (respipe [0], buf, 32) == 32)
514	;
515	}
516	}
517
518	UNLOCK (reslock);
519
520	if (!req)
521	break;
522
523	--nreqs;
524
525	if (req->type == REQ_QUIT)
526	started--;
527	else if (req->type == REQ_GROUP && req->length)
528	{
529	req->fd = 1; /* mark request as delayed */
530	continue;
531	}
532	else
533	{
534	if (req->type == REQ_READ)
535	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
536
537	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
538	SvREADONLY_off (req->data);
539
540	if (req->statdata)
541	{
542	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
543	PL_laststatval = req->result;
544	PL_statcache = *(req->statdata);
545	}
546
547	req_invoke (req);
548
549	count++;
550	}
551
552	req_free (req);
553	}	679	}
554		680
555	return count;	681	#ifdef _WIN32
556	}	682	int arg = 1;
		683	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		684	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		685	#else
		686	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		687	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		688	#endif
		689	croak ("unable to initialize result pipe(3)");
557		690
558	static void *aio_proc(void *arg);	691	respipe_osf [0] = TO_SOCKET (respipe [0]);
		692	respipe_osf [1] = TO_SOCKET (respipe [1]);
		693	}
		694
		695	X_THREAD_PROC (aio_proc);
559		696
560	static void start_thread (void)	697	static void start_thread (void)
561	{	698	{
562	sigset_t fullsigset, oldsigset;
563	pthread_attr_t attr;
564
565	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
566		700
567	if (!wrk)	701	if (!wrk)
568	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
569		703
570	pthread_attr_init (&attr);
571	pthread_attr_setstacksize (&attr, STACKSIZE);
572	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
573
574	sigfillset (&fullsigset);
575
576	LOCK (wrklock);	704	X_LOCK (wrklock);
577	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
578		705
579	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
580	{	707	{
581	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
582	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
583	wrk_first.next->prev = wrk;	710	wrk_first.next->prev = wrk;
584	wrk_first.next = wrk;	711	wrk_first.next = wrk;
585	started++;	712	++started;
586	}	713	}
587	else	714	else
588	free (wrk);	715	free (wrk);
589		716
590	sigprocmask (SIG_SETMASK, &oldsigset, 0);
591	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
		718	}
		719
		720	static void maybe_start_thread (void)
		721	{
		722	if (get_nthreads () >= wanted)
		723	return;
		724
		725	/* todo: maybe use idle here, but might be less exact */
		726	if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
		727	return;
		728
		729	start_thread ();
592	}	730	}
593		731
594	static void req_send (aio_req req)	732	static void req_send (aio_req req)
595	{	733	{
596	while (started < wanted && nreqs >= started)	734	block_sig ();
597	start_thread ();
598		735
599	++nreqs;	736	++nreqs;
600		737
601	LOCK (reqlock);	738	X_LOCK (reqlock);
		739	++nready;
602	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
603	pthread_cond_signal (&reqwait);	741	X_COND_SIGNAL (reqwait);
604	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
605		743
606	if (nreqs > max_outstanding)	744	unblock_sig ();
607	for (;;)
608	{
609	poll_cb ();
610		745
611	if (nreqs <= max_outstanding)	746	maybe_start_thread ();
612	break;
613
614	poll_wait ();
615	}
616	}	747	}
617		748
618	static void end_thread (void)	749	static void end_thread (void)
619	{	750	{
620	aio_req req;	751	aio_req req;
…		…
622	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
623		754
624	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
625	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
626		757
627	req_send (req);	758	X_LOCK (reqlock);
		759	reqq_push (&req_queue, req);
		760	X_COND_SIGNAL (reqwait);
		761	X_UNLOCK (reqlock);
		762
		763	X_LOCK (wrklock);
		764	--started;
		765	X_UNLOCK (wrklock);
		766	}
		767
		768	static void set_max_idle (int nthreads)
		769	{
		770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
		771	max_idle = nthreads <= 0 ? 1 : nthreads;
		772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
628	}	773	}
629		774
630	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
631	{	776	{
632	if (wanted < nthreads)	777	if (wanted < nthreads)
633	wanted = nthreads;	778	wanted = nthreads;
634	}	779	}
635		780
636	static void max_parallel (int nthreads)	781	static void max_parallel (int nthreads)
637	{	782	{
638	int cur = started;
639
640	if (wanted > nthreads)	783	if (wanted > nthreads)
641	wanted = nthreads;	784	wanted = nthreads;
642		785
643	while (cur > wanted)	786	while (started > wanted)
		787	end_thread ();
		788	}
		789
		790	static void poll_wait (void)
		791	{
		792	fd_set rfd;
		793
		794	while (nreqs)
644	{	795	{
		796	int size;
		797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
		798	size = res_queue.size;
		799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
		800
		801	if (size)
		802	return;
		803
645	end_thread ();	804	maybe_start_thread ();
646	cur--;	805
		806	FD_ZERO (&rfd);
		807	FD_SET (respipe [0], &rfd);
		808
		809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
647	}	810	}
		811	}
648		812
649	while (started > wanted)	813	static int poll_cb (void)
		814	{
		815	dSP;
		816	int count = 0;
		817	int maxreqs = max_poll_reqs;
		818	int do_croak = 0;
		819	struct timeval tv_start, tv_now;
		820	aio_req req;
		821
		822	if (max_poll_time)
		823	gettimeofday (&tv_start, 0);
		824
		825	block_sig ();
		826
		827	for (;;)
650	{	828	{
		829	for (;;)
		830	{
		831	maybe_start_thread ();
		832
		833	X_LOCK (reslock);
		834	req = reqq_shift (&res_queue);
		835
		836	if (req)
		837	{
		838	--npending;
		839
		840	if (!res_queue.size)
		841	{
		842	/* read any signals sent by the worker threads */
		843	char buf [4];
		844	while (respipe_read (respipe [0], buf, 4) == 4)
		845	;
		846	}
		847	}
		848
		849	X_UNLOCK (reslock);
		850
		851	if (!req)
		852	break;
		853
		854	--nreqs;
		855
		856	if (req->type == REQ_GROUP && req->size)
		857	{
		858	req->int1 = 1; /* mark request as delayed */
		859	continue;
		860	}
		861	else
		862	{
		863	if (!req_invoke (req))
		864	{
		865	req_destroy (req);
		866	unblock_sig ();
		867	croak (0);
		868	}
		869
		870	count++;
		871	}
		872
		873	req_destroy (req);
		874
		875	if (maxreqs && !--maxreqs)
		876	break;
		877
		878	if (max_poll_time)
		879	{
		880	gettimeofday (&tv_now, 0);
		881
		882	if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
		883	break;
		884	}
		885	}
		886
		887	if (nreqs <= max_outstanding)
		888	break;
		889
651	poll_wait ();	890	poll_wait ();
652	poll_cb ();	891
		892	++maxreqs;
653	}	893	}
654	}
655		894
656	static void create_pipe ()	895	unblock_sig ();
657	{	896	return count;
658	if (pipe (respipe))
659	croak ("unable to initialize result pipe");
660
661	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
662	croak ("cannot set result pipe to nonblocking mode");
663
664	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
665	croak ("cannot set result pipe to nonblocking mode");
666	}	897	}
667		898
668	/*****************************************************************************/	899	/*****************************************************************************/
669	/* work around various missing functions */	900	/* work around various missing functions */
670		901
…		…
675	/*	906	/*
676	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
677	* normal read/write by using a mutex. slows down execution a lot,	908	* normal read/write by using a mutex. slows down execution a lot,
678	* but that's your problem, not mine.	909	* but that's your problem, not mine.
679	*/	910	*/
680	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
681		912
682	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	913	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
683	{	914	{
684	ssize_t res;	915	ssize_t res;
685	off_t ooffset;	916	off_t ooffset;
686		917
687	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
688	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
689	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
690	res = read (fd, buf, count);	921	res = read (fd, buf, count);
691	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
692	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
693		924
694	return res;	925	return res;
695	}	926	}
696		927
697	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	928	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
698	{	929	{
699	ssize_t res;	930	ssize_t res;
700	off_t ooffset;	931	off_t ooffset;
701		932
702	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
703	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
704	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
705	res = write (fd, buf, count);	936	res = write (fd, buf, count);
706	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
707	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
708		939
709	return res;	940	return res;
710	}	941	}
		942	#endif
		943
		944	#ifndef HAVE_FUTIMES
		945
		946	# define utimes(path,times) aio_utimes (path, times)
		947	# define futimes(fd,times) aio_futimes (fd, times)
		948
		949	int aio_utimes (const char *filename, const struct timeval times[2])
		950	{
		951	if (times)
		952	{
		953	struct utimbuf buf;
		954
		955	buf.actime = times[0].tv_sec;
		956	buf.modtime = times[1].tv_sec;
		957
		958	return utime (filename, &buf);
		959	}
		960	else
		961	return utime (filename, 0);
		962	}
		963
		964	int aio_futimes (int fd, const struct timeval tv[2])
		965	{
		966	errno = ENOSYS;
		967	return -1;
		968	}
		969
711	#endif	970	#endif
712		971
713	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
714	# define fdatasync fsync	973	# define fdatasync fsync
715	#endif	974	#endif
716		975
717	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
718	# define readahead aio_readahead	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
719		978
720	static ssize_t readahead (int fd, off_t offset, size_t count)	979	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
721	{	980	{
		981	size_t todo = count;
722	dBUF;	982	dBUF;
723		983
724	while (count > 0)	984	while (todo > 0)
725	{	985	{
726	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
727		987
728	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
729	offset += len;	989	offset += len;
730	count -= len;	990	todo -= len;
731	}	991	}
732		992
733	errno = 0;	993	errno = 0;
		994	return count;
734	}	995	}
		996
735	#endif	997	#endif
736		998
737	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
738	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
739		1001
740	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
741		1003
742	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	1004	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
743	{	1005	{
744	struct dirent *e;	1006	X_DIRENT *e;
745	int errorno;	1007	int errorno;
746		1008
747	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
748		1010
749	e = readdir (dirp);	1011	e = readdir (dirp);
750	errorno = errno;	1012	errorno = errno;
751		1013
752	if (e)	1014	if (e)
…		…
755	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
756	}	1018	}
757	else	1019	else
758	*res = 0;	1020	*res = 0;
759		1021
760	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
761		1023
762	errno = errorno;	1024	errno = errorno;
763	return e ? 0 : -1;	1025	return e ? 0 : -1;
764	}	1026	}
765	#endif	1027	#endif
…		…
784	{	1046	{
785	off_t sbytes;	1047	off_t sbytes;
786	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	1048	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
787		1049
788	if (res < 0 && sbytes)	1050	if (res < 0 && sbytes)
789	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	1051	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
790	res = sbytes;	1052	res = sbytes;
791	}	1053	}
792		1054
793	# elif __hpux	1055	# elif __hpux
794	res = sendfile (ofd, ifd, offset, count, 0, 0);	1056	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
861	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
862	{	1124	{
863	DIR *dirp;	1125	DIR *dirp;
864	union	1126	union
865	{	1127	{
866	struct dirent d;	1128	X_DIRENT d;
867	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
868	} *u;	1130	} *u;
869	struct dirent *entp;	1131	X_DIRENT *entp;
870	char *name, *names;	1132	char *name, *names;
871	int memlen = 4096;	1133	int memlen = 4096;
872	int memofs = 0;	1134	int memofs = 0;
873	int res = 0;	1135	int res = 0;
874	int errorno;
875		1136
876	LOCK (wrklock);	1137	X_LOCK (wrklock);
877	self->dirp = dirp = opendir (req->dataptr);	1138	self->dirp = dirp = opendir (req->ptr1);
878	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
		1140	req->flags |= FLAG_PTR2_FREE;
		1141	req->ptr2 = names = malloc (memlen);
879	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
880
881	req->data2ptr = names = malloc (memlen);
882		1143
883	if (dirp && u && names)	1144	if (dirp && u && names)
884	for (;;)	1145	for (;;)
885	{	1146	{
886	errno = 0;	1147	errno = 0;
…		…
898	res++;	1159	res++;
899		1160
900	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
901	{	1162	{
902	memlen *= 2;	1163	memlen *= 2;
903	LOCK (wrklock);	1164	X_LOCK (wrklock);
904	req->data2ptr = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
905	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
906		1167
907	if (!names)	1168	if (!names)
908	break;	1169	break;
909	}	1170	}
910		1171
…		…
917	res = -1;	1178	res = -1;
918		1179
919	req->result = res;	1180	req->result = res;
920	}	1181	}
921		1182
		1183	static int
		1184	aio_close (int fd)
		1185	{
		1186	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		1187
		1188	X_LOCK (wrklock);
		1189
		1190	if (close_pipe < 0)
		1191	{
		1192	int pipefd [2];
		1193
		1194	if (pipe (pipefd) < 0
		1195	|| close (pipefd [1]) < 0
		1196	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
		1197	{
		1198	X_UNLOCK (wrklock);
		1199	return -1;
		1200	}
		1201
		1202	close_pipe = pipefd [0];
		1203	}
		1204
		1205	X_UNLOCK (wrklock);
		1206
		1207	return dup2 (close_pipe, fd) < 0 ? -1 : 0;
		1208	}
		1209
922	/*****************************************************************************/	1210	/*****************************************************************************/
923		1211
924	static void *aio_proc (void *thr_arg)	1212	X_THREAD_PROC (aio_proc)
925	{	1213	{
926	aio_req req;	1214	aio_req req;
927	int type;	1215	struct timespec ts;
928	worker *self = (worker *)thr_arg;	1216	worker *self = (worker *)thr_arg;
929		1217
930	do	1218	/* try to distribute timeouts somewhat randomly */
		1219	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
		1220
		1221	for (;;)
931	{	1222	{
		1223	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1224
932	LOCK (reqlock);	1225	X_LOCK (reqlock);
933		1226
934	for (;;)	1227	for (;;)
935	{	1228	{
936	self->req = req = reqq_shift (&req_queue);	1229	self->req = req = reqq_shift (&req_queue);
937		1230
938	if (req)	1231	if (req)
939	break;	1232	break;
940		1233
941	pthread_cond_wait (&reqwait, &reqlock);	1234	++idle;
		1235
		1236	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
		1237	== ETIMEDOUT)
		1238	{
		1239	if (idle > max_idle)
		1240	{
		1241	--idle;
		1242	X_UNLOCK (reqlock);
		1243	X_LOCK (wrklock);
		1244	--started;
		1245	X_UNLOCK (wrklock);
		1246	goto quit;
		1247	}
		1248
		1249	/* we are allowed to idle, so do so without any timeout */
		1250	X_COND_WAIT (reqwait, reqlock);
		1251	ts.tv_sec = time (0) + IDLE_TIMEOUT;
		1252	}
		1253
		1254	--idle;
942	}	1255	}
943		1256
		1257	--nready;
		1258
944	UNLOCK (reqlock);	1259	X_UNLOCK (reqlock);
945		1260
946	errno = 0; /* strictly unnecessary */	1261	errno = 0; /* strictly unnecessary */
947	type = req->type; /* remember type for QUIT check */
948		1262
949	if (!(req->flags & FLAG_CANCELLED))	1263	if (!(req->flags & FLAG_CANCELLED))
950	switch (type)	1264	switch (req->type)
951	{	1265	{
952	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	1266	case REQ_READ: req->result = req->offs >= 0
953	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	1267	? pread (req->int1, req->ptr1, req->size, req->offs)
		1268	: read (req->int1, req->ptr1, req->size); break;
		1269	case REQ_WRITE: req->result = req->offs >= 0
		1270	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1271	: write (req->int1, req->ptr1, req->size); break;
954		1272
955	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	1273	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
956	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;	1274	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
957		1275
958	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	1276	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
959	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	1277	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
960	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	1278	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
961		1279
		1280	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1281	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1282	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1283	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1284	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1285	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
		1286
962	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	1287	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
963	case REQ_CLOSE: req->result = close (req->fd); break;	1288	case REQ_CLOSE: req->result = aio_close (req->int1); break;
964	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	1289	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
965	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	1290	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
		1291	case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
966	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	1292	case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
967	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	1293	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
968	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	1294	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
		1295	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
		1296	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
969		1297
970	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	1298	case REQ_SYNC: req->result = 0; sync (); break;
971	case REQ_FSYNC: req->result = fsync (req->fd); break;	1299	case REQ_FSYNC: req->result = fsync (req->int1); break;
		1300	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
		1301
972	case REQ_READDIR: scandir_ (req, self); break;	1302	case REQ_READDIR: scandir_ (req, self); break;
973		1303
974	case REQ_BUSY:	1304	case REQ_BUSY:
		1305	#ifdef _WIN32
		1306	Sleep (req->nv1 * 1000.);
		1307	#else
975	{	1308	{
976	struct timeval tv;	1309	struct timeval tv;
977		1310
978	tv.tv_sec = req->fd;	1311	tv.tv_sec = req->nv1;
979	tv.tv_usec = req->fd2;	1312	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
980		1313
981	req->result = select (0, 0, 0, 0, &tv);	1314	req->result = select (0, 0, 0, 0, &tv);
982	}	1315	}
		1316	#endif
		1317	break;
		1318
		1319	case REQ_UTIME:
		1320	case REQ_FUTIME:
		1321	{
		1322	struct timeval tv[2];
		1323	struct timeval *times;
		1324
		1325	if (req->nv1 != -1. || req->nv2 != -1.)
		1326	{
		1327	tv[0].tv_sec = req->nv1;
		1328	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1329	tv[1].tv_sec = req->nv2;
		1330	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1331
		1332	times = tv;
		1333	}
		1334	else
		1335	times = 0;
		1336
		1337
		1338	req->result = req->type == REQ_FUTIME
		1339	? futimes (req->int1, times)
		1340	: utimes (req->ptr1, times);
		1341	}
983		1342
984	case REQ_GROUP:	1343	case REQ_GROUP:
985	case REQ_NOP:	1344	case REQ_NOP:
		1345	break;
		1346
986	case REQ_QUIT:	1347	case REQ_QUIT:
987	break;	1348	goto quit;
988		1349
989	default:	1350	default:
990	req->result = ENOSYS;	1351	req->result = -1;
991	break;	1352	break;
992	}	1353	}
993		1354
994	req->errorno = errno;	1355	req->errorno = errno;
995		1356
996	LOCK (reslock);	1357	X_LOCK (reslock);
		1358
		1359	++npending;
997		1360
998	if (!reqq_push (&res_queue, req))	1361	if (!reqq_push (&res_queue, req))
		1362	{
999	/* write a dummy byte to the pipe so fh becomes ready */	1363	/* write a dummy byte to the pipe so fh becomes ready */
1000	write (respipe [1], &respipe, 1);	1364	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		1365
		1366	/* optionally signal the main thread asynchronously */
		1367	if (main_sig)
		1368	pthread_kill (main_tid, main_sig);
		1369	}
1001		1370
1002	self->req = 0;	1371	self->req = 0;
1003	worker_clear (self);	1372	worker_clear (self);
1004		1373
1005	UNLOCK (reslock);	1374	X_UNLOCK (reslock);
1006	}	1375	}
1007	while (type != REQ_QUIT);
1008		1376
		1377	quit:
1009	LOCK (wrklock);	1378	X_LOCK (wrklock);
1010	worker_free (self);	1379	worker_free (self);
1011	UNLOCK (wrklock);	1380	X_UNLOCK (wrklock);
1012		1381
1013	return 0;	1382	return 0;
1014	}	1383	}
1015		1384
1016	/*****************************************************************************/	1385	/*****************************************************************************/
1017		1386
1018	static void atfork_prepare (void)	1387	static void atfork_prepare (void)
1019	{	1388	{
1020	LOCK (wrklock);	1389	X_LOCK (wrklock);
1021	LOCK (reqlock);	1390	X_LOCK (reqlock);
1022	LOCK (reslock);	1391	X_LOCK (reslock);
1023	#if !HAVE_PREADWRITE	1392	#if !HAVE_PREADWRITE
1024	LOCK (preadwritelock);	1393	X_LOCK (preadwritelock);
1025	#endif	1394	#endif
1026	#if !HAVE_READDIR_R	1395	#if !HAVE_READDIR_R
1027	LOCK (readdirlock);	1396	X_LOCK (readdirlock);
1028	#endif	1397	#endif
1029	}	1398	}
1030		1399
1031	static void atfork_parent (void)	1400	static void atfork_parent (void)
1032	{	1401	{
1033	#if !HAVE_READDIR_R	1402	#if !HAVE_READDIR_R
1034	UNLOCK (readdirlock);	1403	X_UNLOCK (readdirlock);
1035	#endif	1404	#endif
1036	#if !HAVE_PREADWRITE	1405	#if !HAVE_PREADWRITE
1037	UNLOCK (preadwritelock);	1406	X_UNLOCK (preadwritelock);
1038	#endif	1407	#endif
1039	UNLOCK (reslock);	1408	X_UNLOCK (reslock);
1040	UNLOCK (reqlock);	1409	X_UNLOCK (reqlock);
1041	UNLOCK (wrklock);	1410	X_UNLOCK (wrklock);
1042	}	1411	}
1043		1412
1044	static void atfork_child (void)	1413	static void atfork_child (void)
1045	{	1414	{
1046	aio_req prv;	1415	aio_req prv;
1047		1416
1048	while (prv = reqq_shift (&req_queue))	1417	while (prv = reqq_shift (&req_queue))
1049	req_free (prv);	1418	req_destroy (prv);
1050		1419
1051	while (prv = reqq_shift (&res_queue))	1420	while (prv = reqq_shift (&res_queue))
1052	req_free (prv);	1421	req_destroy (prv);
1053		1422
1054	while (wrk_first.next != &wrk_first)	1423	while (wrk_first.next != &wrk_first)
1055	{	1424	{
1056	worker *wrk = wrk_first.next;	1425	worker *wrk = wrk_first.next;
1057		1426
1058	if (wrk->req)	1427	if (wrk->req)
1059	req_free (wrk->req);	1428	req_destroy (wrk->req);
1060		1429
1061	worker_clear (wrk);	1430	worker_clear (wrk);
1062	worker_free (wrk);	1431	worker_free (wrk);
1063	}	1432	}
1064		1433
1065	started = 0;	1434	started = 0;
		1435	idle = 0;
1066	nreqs = 0;	1436	nreqs = 0;
		1437	nready = 0;
		1438	npending = 0;
1067		1439
1068	close (respipe [0]);
1069	close (respipe [1]);
1070	create_pipe ();	1440	create_respipe ();
1071		1441
1072	atfork_parent ();	1442	atfork_parent ();
1073	}	1443	}
1074		1444
1075	#define dREQ \	1445	#define dREQ \
…		…
1097		1467
1098	PROTOTYPES: ENABLE	1468	PROTOTYPES: ENABLE
1099		1469
1100	BOOT:	1470	BOOT:
1101	{	1471	{
1102	HV *stash = gv_stashpv ("IO::AIO", 1);	1472	stash = gv_stashpv ("IO::AIO", 1);
		1473
1103	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1104	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1105	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
		1478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1479	#ifdef _WIN32
		1480	X_MUTEX_CHECK (wrklock);
		1481	X_MUTEX_CHECK (reslock);
		1482	X_MUTEX_CHECK (reqlock);
		1483	X_MUTEX_CHECK (reqwait);
		1484	X_MUTEX_CHECK (preadwritelock);
		1485	X_MUTEX_CHECK (readdirlock);
1106		1486
1107	create_pipe ();	1487	X_COND_CHECK (reqwait);
		1488	#else
		1489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
		1490	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1491	#endif
		1492
		1493	create_respipe ();
		1494
1108	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1495	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1109	}	1496	}
1110		1497
1111	void	1498	void
1112	min_parallel (nthreads)	1499	max_poll_reqs (int nreqs)
1113	int nthreads
1114	PROTOTYPE: $	1500	PROTOTYPE: $
		1501	CODE:
		1502	max_poll_reqs = nreqs;
1115		1503
1116	void	1504	void
1117	max_parallel (nthreads)	1505	max_poll_time (double nseconds)
1118	int nthreads
1119	PROTOTYPE: $	1506	PROTOTYPE: $
		1507	CODE:
		1508	max_poll_time = nseconds * AIO_TICKS;
		1509
		1510	void
		1511	min_parallel (int nthreads)
		1512	PROTOTYPE: $
		1513
		1514	void
		1515	max_parallel (int nthreads)
		1516	PROTOTYPE: $
		1517
		1518	void
		1519	max_idle (int nthreads)
		1520	PROTOTYPE: $
		1521	CODE:
		1522	set_max_idle (nthreads);
1120		1523
1121	int	1524	int
1122	max_outstanding (nreqs)	1525	max_outstanding (int maxreqs)
1123	int nreqs	1526	PROTOTYPE: $
1124	PROTOTYPE: $
1125	CODE:	1527	CODE:
1126	RETVAL = max_outstanding;	1528	RETVAL = max_outstanding;
1127	max_outstanding = nreqs;	1529	max_outstanding = maxreqs;
		1530	OUTPUT:
		1531	RETVAL
1128		1532
1129	void	1533	void
1130	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1534	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1131	SV * pathname
1132	int flags
1133	int mode
1134	SV * callback
1135	PROTOTYPE: $$$;$	1535	PROTOTYPE: $$$;$
1136	PPCODE:	1536	PPCODE:
1137	{	1537	{
1138	dREQ;	1538	dREQ;
1139		1539
1140	req->type = REQ_OPEN;	1540	req->type = REQ_OPEN;
1141	req->data = newSVsv (pathname);	1541	req->sv1 = newSVsv (pathname);
1142	req->dataptr = SvPVbyte_nolen (req->data);	1542	req->ptr1 = SvPVbyte_nolen (req->sv1);
1143	req->fd = flags;	1543	req->int1 = flags;
1144	req->mode = mode;	1544	req->mode = mode;
1145		1545
1146	REQ_SEND;	1546	REQ_SEND;
1147	}	1547	}
1148		1548
1149	void	1549	void
1150	aio_close (fh,callback=&PL_sv_undef)	1550	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1151	SV * fh
1152	SV * callback
1153	PROTOTYPE: $;$	1551	PROTOTYPE: $;$
1154	ALIAS:	1552	ALIAS:
1155	aio_close = REQ_CLOSE
1156	aio_fsync = REQ_FSYNC	1553	aio_fsync = REQ_FSYNC
1157	aio_fdatasync = REQ_FDATASYNC	1554	aio_fdatasync = REQ_FDATASYNC
1158	PPCODE:	1555	PPCODE:
1159	{	1556	{
1160	dREQ;	1557	dREQ;
1161		1558
1162	req->type = ix;	1559	req->type = ix;
1163	req->fh = newSVsv (fh);	1560	req->sv1 = newSVsv (fh);
1164	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1561	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1165		1562
1166	REQ_SEND (req);	1563	REQ_SEND (req);
1167	}	1564	}
1168		1565
1169	void	1566	void
		1567	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1568	PROTOTYPE: $;$
		1569	PPCODE:
		1570	{
		1571	dREQ;
		1572
		1573	req->type = REQ_CLOSE;
		1574	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
		1575
		1576	REQ_SEND (req);
		1577	}
		1578
		1579	void
1170	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1580	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1171	SV * fh
1172	UV offset
1173	UV length
1174	SV * data
1175	UV dataoffset
1176	SV * callback
1177	ALIAS:	1581	ALIAS:
1178	aio_read = REQ_READ	1582	aio_read = REQ_READ
1179	aio_write = REQ_WRITE	1583	aio_write = REQ_WRITE
1180	PROTOTYPE: $$$$$;$	1584	PROTOTYPE: $$$$$;$
1181	PPCODE:	1585	PPCODE:
1182	{	1586	{
1183	aio_req req;
1184	STRLEN svlen;	1587	STRLEN svlen;
1185	char *svptr = SvPVbyte (data, svlen);	1588	char *svptr = SvPVbyte (data, svlen);
		1589	UV len = SvUV (length);
1186		1590
1187	SvUPGRADE (data, SVt_PV);	1591	SvUPGRADE (data, SVt_PV);
1188	SvPOK_on (data);	1592	SvPOK_on (data);
1189		1593
1190	if (dataoffset < 0)	1594	if (dataoffset < 0)
1191	dataoffset += svlen;	1595	dataoffset += svlen;
1192		1596
1193	if (dataoffset < 0 || dataoffset > svlen)	1597	if (dataoffset < 0 || dataoffset > svlen)
1194	croak ("data offset outside of string");	1598	croak ("dataoffset outside of data scalar");
1195		1599
1196	if (ix == REQ_WRITE)	1600	if (ix == REQ_WRITE)
1197	{	1601	{
1198	/* write: check length and adjust. */	1602	/* write: check length and adjust. */
1199	if (length < 0 || length + dataoffset > svlen)	1603	if (!SvOK (length) || len + dataoffset > svlen)
1200	length = svlen - dataoffset;	1604	len = svlen - dataoffset;
1201	}	1605	}
1202	else	1606	else
1203	{	1607	{
1204	/* read: grow scalar as necessary */	1608	/* read: grow scalar as necessary */
1205	svptr = SvGROW (data, length + dataoffset);	1609	svptr = SvGROW (data, len + dataoffset + 1);
1206	}	1610	}
1207		1611
1208	if (length < 0)	1612	if (len < 0)
1209	croak ("length must not be negative");	1613	croak ("length must not be negative");
1210		1614
1211	{	1615	{
1212	dREQ;	1616	dREQ;
1213		1617
1214	req->type = ix;	1618	req->type = ix;
1215	req->fh = newSVsv (fh);	1619	req->sv1 = newSVsv (fh);
1216	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1620	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1217	: IoOFP (sv_2io (fh)));	1621	: IoOFP (sv_2io (fh)));
		1622	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1218	req->offset = offset;	1623	req->size = len;
1219	req->length = length;
1220	req->data = SvREFCNT_inc (data);	1624	req->sv2 = SvREFCNT_inc (data);
1221	req->dataptr = (char *)svptr + dataoffset;	1625	req->ptr1 = (char *)svptr + dataoffset;
		1626	req->stroffset = dataoffset;
1222		1627
1223	if (!SvREADONLY (data))	1628	if (!SvREADONLY (data))
1224	{	1629	{
1225	SvREADONLY_on (data);	1630	SvREADONLY_on (data);
1226	req->data2ptr = (void *)data;	1631	req->flags |= FLAG_SV2_RO_OFF;
1227	}	1632	}
1228		1633
1229	REQ_SEND;	1634	REQ_SEND;
1230	}	1635	}
1231	}	1636	}
1232		1637
1233	void	1638	void
		1639	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		1640	PROTOTYPE: $$;$
		1641	PPCODE:
		1642	{
		1643	SV *data;
		1644	dREQ;
		1645
		1646	data = newSV (NAME_MAX);
		1647	SvPOK_on (data);
		1648
		1649	req->type = REQ_READLINK;
		1650	req->sv1 = newSVsv (path);
		1651	req->ptr2 = SvPVbyte_nolen (req->sv1);
		1652	req->sv2 = data;
		1653	req->ptr1 = SvPVbyte_nolen (data);
		1654
		1655	REQ_SEND;
		1656	}
		1657
		1658	void
1234	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1659	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1235	SV * out_fh
1236	SV * in_fh
1237	UV in_offset
1238	UV length
1239	SV * callback
1240	PROTOTYPE: $$$$;$	1660	PROTOTYPE: $$$$;$
1241	PPCODE:	1661	PPCODE:
1242	{	1662	{
1243	dREQ;	1663	dREQ;
1244		1664
1245	req->type = REQ_SENDFILE;	1665	req->type = REQ_SENDFILE;
1246	req->fh = newSVsv (out_fh);	1666	req->sv1 = newSVsv (out_fh);
1247	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1667	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1248	req->fh2 = newSVsv (in_fh);	1668	req->sv2 = newSVsv (in_fh);
1249	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1669	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1250	req->offset = in_offset;	1670	req->offs = SvVAL64 (in_offset);
1251	req->length = length;	1671	req->size = length;
1252		1672
1253	REQ_SEND;	1673	REQ_SEND;
1254	}	1674	}
1255		1675
1256	void	1676	void
1257	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1677	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1258	SV * fh
1259	UV offset
1260	IV length
1261	SV * callback
1262	PROTOTYPE: $$$;$	1678	PROTOTYPE: $$$;$
1263	PPCODE:	1679	PPCODE:
1264	{	1680	{
1265	dREQ;	1681	dREQ;
1266		1682
1267	req->type = REQ_READAHEAD;	1683	req->type = REQ_READAHEAD;
1268	req->fh = newSVsv (fh);	1684	req->sv1 = newSVsv (fh);
1269	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1685	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1270	req->offset = offset;	1686	req->offs = SvVAL64 (offset);
1271	req->length = length;	1687	req->size = length;
1272		1688
1273	REQ_SEND;	1689	REQ_SEND;
1274	}	1690	}
1275		1691
1276	void	1692	void
1277	aio_stat (fh_or_path,callback=&PL_sv_undef)	1693	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1278	SV * fh_or_path
1279	SV * callback
1280	ALIAS:	1694	ALIAS:
1281	aio_stat = REQ_STAT	1695	aio_stat = REQ_STAT
1282	aio_lstat = REQ_LSTAT	1696	aio_lstat = REQ_LSTAT
1283	PPCODE:	1697	PPCODE:
1284	{	1698	{
1285	dREQ;	1699	dREQ;
1286		1700
1287	New (0, req->statdata, 1, Stat_t);	1701	req->ptr2 = malloc (sizeof (Stat_t));
1288	if (!req->statdata)	1702	if (!req->ptr2)
1289	{	1703	{
1290	req_free (req);	1704	req_destroy (req);
1291	croak ("out of memory during aio_req->statdata allocation");	1705	croak ("out of memory during aio_stat statdata allocation");
1292	}	1706	}
		1707
		1708	req->flags |= FLAG_PTR2_FREE;
		1709	req->sv1 = newSVsv (fh_or_path);
1293		1710
1294	if (SvPOK (fh_or_path))	1711	if (SvPOK (fh_or_path))
1295	{	1712	{
1296	req->type = ix;	1713	req->type = ix;
1297	req->data = newSVsv (fh_or_path);
1298	req->dataptr = SvPVbyte_nolen (req->data);	1714	req->ptr1 = SvPVbyte_nolen (req->sv1);
1299	}	1715	}
1300	else	1716	else
1301	{	1717	{
1302	req->type = REQ_FSTAT;	1718	req->type = REQ_FSTAT;
1303	req->fh = newSVsv (fh_or_path);
1304	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1719	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1305	}	1720	}
1306		1721
1307	REQ_SEND;	1722	REQ_SEND;
1308	}	1723	}
1309		1724
1310	void	1725	void
		1726	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1727	PPCODE:
		1728	{
		1729	dREQ;
		1730
		1731	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1732	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1733	req->sv1 = newSVsv (fh_or_path);
		1734
		1735	if (SvPOK (fh_or_path))
		1736	{
		1737	req->type = REQ_UTIME;
		1738	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1739	}
		1740	else
		1741	{
		1742	req->type = REQ_FUTIME;
		1743	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1744	}
		1745
		1746	REQ_SEND;
		1747	}
		1748
		1749	void
		1750	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	dREQ;
		1754
		1755	req->sv1 = newSVsv (fh_or_path);
		1756	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1757
		1758	if (SvPOK (fh_or_path))
		1759	{
		1760	req->type = REQ_TRUNCATE;
		1761	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1762	}
		1763	else
		1764	{
		1765	req->type = REQ_FTRUNCATE;
		1766	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1767	}
		1768
		1769	REQ_SEND;
		1770	}
		1771
		1772	void
		1773	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1774	PPCODE:
		1775	{
		1776	dREQ;
		1777
		1778	req->mode = mode;
		1779	req->sv1 = newSVsv (fh_or_path);
		1780
		1781	if (SvPOK (fh_or_path))
		1782	{
		1783	req->type = REQ_CHMOD;
		1784	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1785	}
		1786	else
		1787	{
		1788	req->type = REQ_FCHMOD;
		1789	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1790	}
		1791
		1792	REQ_SEND;
		1793	}
		1794
		1795	void
		1796	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	dREQ;
		1800
		1801	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1802	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1803	req->sv1 = newSVsv (fh_or_path);
		1804
		1805	if (SvPOK (fh_or_path))
		1806	{
		1807	req->type = REQ_CHOWN;
		1808	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1809	}
		1810	else
		1811	{
		1812	req->type = REQ_FCHOWN;
		1813	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1814	}
		1815
		1816	REQ_SEND;
		1817	}
		1818
		1819	void
1311	aio_unlink (pathname,callback=&PL_sv_undef)	1820	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1312	SV * pathname
1313	SV * callback
1314	ALIAS:	1821	ALIAS:
1315	aio_unlink = REQ_UNLINK	1822	aio_unlink = REQ_UNLINK
1316	aio_rmdir = REQ_RMDIR	1823	aio_rmdir = REQ_RMDIR
1317	aio_readdir = REQ_READDIR	1824	aio_readdir = REQ_READDIR
1318	PPCODE:	1825	PPCODE:
1319	{	1826	{
1320	dREQ;	1827	dREQ;
1321		1828
1322	req->type = ix;	1829	req->type = ix;
1323	req->data = newSVsv (pathname);	1830	req->sv1 = newSVsv (pathname);
1324	req->dataptr = SvPVbyte_nolen (req->data);	1831	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1832
		1833	REQ_SEND;
		1834	}
		1835
		1836	void
		1837	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1838	PPCODE:
		1839	{
		1840	dREQ;
1325		1841
		1842	req->type = REQ_MKDIR;
		1843	req->sv1 = newSVsv (pathname);
		1844	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1845	req->mode = mode;
		1846
1326	REQ_SEND;	1847	REQ_SEND;
1327	}	1848	}
1328		1849
1329	void	1850	void
1330	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1851	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1331	SV * oldpath
1332	SV * newpath
1333	SV * callback
1334	ALIAS:	1852	ALIAS:
1335	aio_link = REQ_LINK	1853	aio_link = REQ_LINK
1336	aio_symlink = REQ_SYMLINK	1854	aio_symlink = REQ_SYMLINK
1337	aio_rename = REQ_RENAME	1855	aio_rename = REQ_RENAME
1338	PPCODE:	1856	PPCODE:
1339	{	1857	{
1340	dREQ;	1858	dREQ;
1341		1859
1342	req->type = ix;	1860	req->type = ix;
1343	req->fh = newSVsv (oldpath);	1861	req->sv2 = newSVsv (oldpath);
1344	req->data2ptr = SvPVbyte_nolen (req->fh);	1862	req->ptr2 = SvPVbyte_nolen (req->sv2);
1345	req->data = newSVsv (newpath);	1863	req->sv1 = newSVsv (newpath);
1346	req->dataptr = SvPVbyte_nolen (req->data);	1864	req->ptr1 = SvPVbyte_nolen (req->sv1);
1347		1865
1348	REQ_SEND;	1866	REQ_SEND;
1349	}	1867	}
1350		1868
1351	void	1869	void
1352	aio_busy (delay,callback=&PL_sv_undef)	1870	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1353	double delay
1354	SV * callback
1355	PPCODE:	1871	PPCODE:
1356	{	1872	{
1357	dREQ;	1873	dREQ;
		1874
		1875	req->type = REQ_MKNOD;
		1876	req->sv1 = newSVsv (pathname);
		1877	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1878	req->mode = (mode_t)mode;
		1879	req->offs = dev;
		1880
		1881	REQ_SEND;
		1882	}
		1883
		1884	void
		1885	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1886	PPCODE:
		1887	{
		1888	dREQ;
1358		1889
1359	req->type = REQ_BUSY;	1890	req->type = REQ_BUSY;
1360	req->fd = delay < 0. ? 0 : delay;	1891	req->nv1 = delay < 0. ? 0. : delay;
1361	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1362		1892
1363	REQ_SEND;	1893	REQ_SEND;
1364	}	1894	}
1365		1895
1366	void	1896	void
1367	aio_group (callback=&PL_sv_undef)	1897	aio_group (SV *callback=&PL_sv_undef)
1368	SV * callback
1369	PROTOTYPE: ;$	1898	PROTOTYPE: ;$
1370	PPCODE:	1899	PPCODE:
1371	{	1900	{
1372	dREQ;	1901	dREQ;
1373		1902
1374	req->type = REQ_GROUP;	1903	req->type = REQ_GROUP;
		1904
1375	req_send (req);	1905	req_send (req);
1376
1377	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1906	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1378	}	1907	}
1379		1908
1380	void	1909	void
1381	aio_nop (callback=&PL_sv_undef)	1910	aio_nop (SV *callback=&PL_sv_undef)
1382	SV * callback	1911	ALIAS:
		1912	aio_nop = REQ_NOP
		1913	aio_sync = REQ_SYNC
1383	PPCODE:	1914	PPCODE:
1384	{	1915	{
1385	dREQ;	1916	dREQ;
1386		1917
1387	req->type = REQ_NOP;	1918	req->type = ix;
1388		1919
1389	REQ_SEND;	1920	REQ_SEND;
1390	}	1921	}
1391		1922
1392	void	1923	int
1393	aioreq_pri (int pri = DEFAULT_PRI)	1924	aioreq_pri (int pri = 0)
1394	CODE:	1925	PROTOTYPE: ;$
		1926	CODE:
		1927	RETVAL = next_pri - PRI_BIAS;
		1928	if (items > 0)
		1929	{
1395	if (pri < PRI_MIN) pri = PRI_MIN;	1930	if (pri < PRI_MIN) pri = PRI_MIN;
1396	if (pri > PRI_MAX) pri = PRI_MAX;	1931	if (pri > PRI_MAX) pri = PRI_MAX;
1397	next_pri = pri + PRI_BIAS;	1932	next_pri = pri + PRI_BIAS;
		1933	}
		1934	OUTPUT:
		1935	RETVAL
1398		1936
1399	void	1937	void
1400	aioreq_nice (int nice = 0)	1938	aioreq_nice (int nice = 0)
1401	CODE:	1939	CODE:
1402	nice = next_pri - nice;	1940	nice = next_pri - nice;
1403	if (nice < PRI_MIN) nice = PRI_MIN;	1941	if (nice < PRI_MIN) nice = PRI_MIN;
1404	if (nice > PRI_MAX) nice = PRI_MAX;	1942	if (nice > PRI_MAX) nice = PRI_MAX;
1405	next_pri = nice + PRI_BIAS;	1943	next_pri = nice + PRI_BIAS;
1406		1944
1407	void	1945	void
1408	flush ()	1946	flush ()
1409	PROTOTYPE:	1947	PROTOTYPE:
1410	CODE:	1948	CODE:
…		…
1412	{	1950	{
1413	poll_wait ();	1951	poll_wait ();
1414	poll_cb ();	1952	poll_cb ();
1415	}	1953	}
1416		1954
1417	void	1955	int
1418	poll()	1956	poll()
1419	PROTOTYPE:	1957	PROTOTYPE:
1420	CODE:	1958	CODE:
1421	if (nreqs)
1422	{
1423	poll_wait ();	1959	poll_wait ();
1424	poll_cb ();	1960	RETVAL = poll_cb ();
1425	}	1961	OUTPUT:
		1962	RETVAL
1426		1963
1427	int	1964	int
1428	poll_fileno()	1965	poll_fileno()
1429	PROTOTYPE:	1966	PROTOTYPE:
1430	CODE:	1967	CODE:
…		…
1442		1979
1443	void	1980	void
1444	poll_wait()	1981	poll_wait()
1445	PROTOTYPE:	1982	PROTOTYPE:
1446	CODE:	1983	CODE:
1447	if (nreqs)
1448	poll_wait ();	1984	poll_wait ();
		1985
		1986	void
		1987	setsig (int signum = SIGIO)
		1988	PROTOTYPE: ;$
		1989	CODE:
		1990	{
		1991	if (block_sig_level)
		1992	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
		1993
		1994	X_LOCK (reslock);
		1995	main_tid = pthread_self ();
		1996	main_sig = signum;
		1997	X_UNLOCK (reslock);
		1998
		1999	if (main_sig && npending)
		2000	pthread_kill (main_tid, main_sig);
		2001	}
		2002
		2003	void
		2004	aio_block (SV *cb)
		2005	PROTOTYPE: &
		2006	PPCODE:
		2007	{
		2008	int count;
		2009
		2010	block_sig ();
		2011	PUSHMARK (SP);
		2012	PUTBACK;
		2013	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
		2014	unblock_sig ();
		2015
		2016	if (SvTRUE (ERRSV))
		2017	croak (0);
		2018
		2019	XSRETURN (count);
		2020	}
1449		2021
1450	int	2022	int
1451	nreqs()	2023	nreqs()
1452	PROTOTYPE:	2024	PROTOTYPE:
1453	CODE:	2025	CODE:
1454	RETVAL = nreqs;	2026	RETVAL = nreqs;
1455	OUTPUT:	2027	OUTPUT:
1456	RETVAL	2028	RETVAL
1457		2029
		2030	int
		2031	nready()
		2032	PROTOTYPE:
		2033	CODE:
		2034	RETVAL = get_nready ();
		2035	OUTPUT:
		2036	RETVAL
		2037
		2038	int
		2039	npending()
		2040	PROTOTYPE:
		2041	CODE:
		2042	RETVAL = get_npending ();
		2043	OUTPUT:
		2044	RETVAL
		2045
		2046	int
		2047	nthreads()
		2048	PROTOTYPE:
		2049	CODE:
		2050	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
		2051	RETVAL = started;
		2052	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
		2053	OUTPUT:
		2054	RETVAL
		2055
1458	PROTOTYPES: DISABLE	2056	PROTOTYPES: DISABLE
1459		2057
1460	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2058	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1461		2059
1462	void	2060	void
…		…
1477	PPCODE:	2075	PPCODE:
1478	{	2076	{
1479	int i;	2077	int i;
1480	aio_req req;	2078	aio_req req;
1481		2079
		2080	if (main_sig && !block_sig_level)
		2081	croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
		2082
1482	if (grp->fd == 2)	2083	if (grp->int1 == 2)
1483	croak ("cannot add requests to IO::AIO::GRP after the group finished");	2084	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1484		2085
1485	for (i = 1; i < items; ++i )	2086	for (i = 1; i < items; ++i )
1486	{	2087	{
1487	if (GIMME_V != G_VOID)	2088	if (GIMME_V != G_VOID)
…		…
1489		2090
1490	req = SvAIO_REQ (ST (i));	2091	req = SvAIO_REQ (ST (i));
1491		2092
1492	if (req)	2093	if (req)
1493	{	2094	{
1494	++grp->length;	2095	++grp->size;
1495	req->grp = grp;	2096	req->grp = grp;
1496		2097
1497	req->grp_prev = 0;	2098	req->grp_prev = 0;
1498	req->grp_next = grp->grp_first;	2099	req->grp_next = grp->grp_first;
1499		2100
…		…
1513	void	2114	void
1514	result (aio_req grp, ...)	2115	result (aio_req grp, ...)
1515	CODE:	2116	CODE:
1516	{	2117	{
1517	int i;	2118	int i;
		2119	AV *av;
		2120
		2121	grp->errorno = errno;
		2122
1518	AV *av = newAV ();	2123	av = newAV ();
1519		2124
1520	for (i = 1; i < items; ++i )	2125	for (i = 1; i < items; ++i )
1521	av_push (av, newSVsv (ST (i)));	2126	av_push (av, newSVsv (ST (i)));
1522		2127
1523	SvREFCNT_dec (grp->data);	2128	SvREFCNT_dec (grp->sv1);
1524	grp->data = (SV *)av;	2129	grp->sv1 = (SV *)av;
1525	}	2130	}
		2131
		2132	void
		2133	errno (aio_req grp, int errorno = errno)
		2134	CODE:
		2135	grp->errorno = errorno;
1526		2136
1527	void	2137	void
1528	limit (aio_req grp, int limit)	2138	limit (aio_req grp, int limit)
1529	CODE:	2139	CODE:
1530	grp->fd2 = limit;	2140	grp->int2 = limit;
1531	aio_grp_feed (grp);	2141	aio_grp_feed (grp);
1532		2142
1533	void	2143	void
1534	feed (aio_req grp, SV *callback=&PL_sv_undef)	2144	feed (aio_req grp, SV *callback=&PL_sv_undef)
1535	CODE:	2145	CODE:
1536	{	2146	{
1537	SvREFCNT_dec (grp->fh2);	2147	SvREFCNT_dec (grp->sv2);
1538	grp->fh2 = newSVsv (callback);	2148	grp->sv2 = newSVsv (callback);
1539		2149
1540	if (grp->fd2 <= 0)	2150	if (grp->int2 <= 0)
1541	grp->fd2 = 2;	2151	grp->int2 = 2;
1542		2152
1543	aio_grp_feed (grp);	2153	aio_grp_feed (grp);
1544	}	2154	}
1545		2155

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