ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.45 by root, Sun Oct 22 00:19:05 2006 UTC vs.
Revision 1.187 by root, Sat Jul 16 16:46:10 2011 UTC

1	#define _REENTRANT 1	1	#include "libeio/xthread.h"
		2
2	#include <errno.h>	3	#include <errno.h>
3		4
4	#include "EXTERN.h"	5	#include "EXTERN.h"
5	#include "perl.h"	6	#include "perl.h"
6	#include "XSUB.h"	7	#include "XSUB.h"
7		8
8	#include "autoconf/config.h"	9	#include "schmorp.h"
9
10	#include <pthread.h>
11		10
12	#include <stddef.h>	11	#include <stddef.h>
		12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/time.h>
15	#include <sys/select.h>
16	#include <sys/types.h>	14	#include <sys/types.h>
17	#include <sys/stat.h>	15	#include <sys/stat.h>
18	#include <limits.h>	16	#include <limits.h>
19	#include <unistd.h>
20	#include <fcntl.h>	17	#include <fcntl.h>
21	#include <signal.h>
22	#include <sched.h>	18	#include <sched.h>
23		19
24	#if HAVE_SENDFILE	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
25	# if __linux
26	# include <sys/sendfile.h>	21	# include <sys/mman.h>
27	# elif __freebsd	22	#endif
28	# include <sys/socket.h>	23
		24	/* perl namespace pollution */
		25	#undef VERSION
		26
		27	/* perl stupidly overrides readdir and maybe others */
		28	/* with thread-unsafe versions, imagine that :( */
		29	#undef readdir
		30	#undef opendir
		31	#undef closedir
		32
		33	#ifdef _WIN32
		34
		35	# define EIO_STRUCT_DIRENT Direntry_t
		36	# undef malloc
		37	# undef free
		38
		39	// perl overrides all those nice win32 functions
		40	# undef open
		41	# undef read
		42	# undef write
		43	# undef send
		44	# undef recv
		45	# undef lstat
		46	# undef truncate
		47	# undef ftruncate
		48	# undef open
		49	# undef link
		50	# undef close
		51	# undef unlink
		52	# undef mkdir
		53	# undef rmdir
		54	# undef rename
		55	# undef lseek
		56	# undef opendir
		57	# undef readdir
		58	# undef closedir
		59	# undef chmod
		60	# undef fchmod
		61
		62	# define opendir(fd) EIO_ERRNO (ENOSYS, 0)
		63	# define readdir(fd) EIO_ENOSYS ()
		64	# define closedir(fd) EIO_ENOSYS ()
		65
		66	#else
		67
29	# include <sys/uio.h>	68	# include <sys/time.h>
30	# elif __hpux
31	# include <sys/socket.h>
32	# elif __solaris /* not yet */
33	# include <sys/sendfile.h>	69	# include <sys/select.h>
		70	# include <unistd.h>
		71	# include <utime.h>
		72	# include <signal.h>
		73
		74	#endif
		75
		76	#define EIO_STRUCT_STAT Stat_t
		77
		78	/* use NV for 32 bit perls as it allows larger offsets */
		79	#if IVSIZE >= 8
		80	# define VAL64 IV
		81	# define SvVAL64 SvIV
		82	# define newSVval64 newSViv
		83	#else
		84	# define VAL64 NV
		85	# define SvVAL64 SvNV
		86	# define newSVval64 newSVnv
		87	#endif
		88
		89	/*****************************************************************************/
		90
		91	#if __GNUC__ >= 3
		92	# define expect(expr,value) __builtin_expect ((expr),(value))
		93	#else
		94	# define expect(expr,value) (expr)
		95	#endif
		96
		97	#define expect_false(expr) expect ((expr) != 0, 0)
		98	#define expect_true(expr) expect ((expr) != 0, 1)
		99
		100	/*****************************************************************************/
		101
		102	typedef SV SV8; /* byte-sv, used for argument-checking */
		103	typedef int aio_rfd; /* read file desriptor */
		104	typedef int aio_wfd; /* write file descriptor */
		105
		106	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
		107
		108	#define EIO_REQ_MEMBERS \
		109	SV *callback; \
		110	SV *sv1, *sv2; \
		111	STRLEN stroffset; \
		112	SV *self;
		113
		114	#define EIO_NO_WRAPPERS 1
		115
		116	#include "libeio/config.h"
		117	#include "libeio/eio.h"
		118
		119	/* Linux/others */
		120	#ifndef O_ASYNC
		121	# define O_ASYNC 0
		122	#endif
		123	#ifndef O_DIRECT
		124	# define O_DIRECT 0
		125	#endif
		126	#ifndef O_NOATIME
		127	# define O_NOATIME 0
		128	#endif
		129
		130	/* POSIX */
		131	#ifndef O_CLOEXEC
		132	# define O_CLOEXEC 0
		133	#endif
		134	#ifndef O_NOFOLLOW
		135	# define O_NOFOLLOW 0
		136	#endif
		137	#ifndef O_NOCTTY
		138	# define O_NOCTTY 0
		139	#endif
		140	#ifndef O_NONBLOCK
		141	# define O_NONBLOCK 0
		142	#endif
		143	#ifndef O_EXEC
		144	# define O_EXEC 0
		145	#endif
		146	#ifndef O_SEARCH
		147	# define O_SEARCH 0
		148	#endif
		149	#ifndef O_DIRECTORY
		150	# define O_DIRECTORY 0
		151	#endif
		152	#ifndef O_DSYNC
		153	# define O_DSYNC 0
		154	#endif
		155	#ifndef O_RSYNC
		156	# define O_RSYNC 0
		157	#endif
		158	#ifndef O_SYNC
		159	# define O_SYNC 0
		160	#endif
		161	#ifndef O_TTY_INIT
		162	# define O_TTY_INIT 0
		163	#endif
		164
		165	#ifndef POSIX_FADV_NORMAL
		166	# define POSIX_FADV_NORMAL 0
		167	#endif
		168	#ifndef POSIX_FADV_SEQUENTIAL
		169	# define POSIX_FADV_SEQUENTIAL 0
		170	#endif
		171	#ifndef POSIX_FADV_RANDOM
		172	# define POSIX_FADV_RANDOM 0
		173	#endif
		174	#ifndef POSIX_FADV_NOREUSE
		175	# define POSIX_FADV_NOREUSE 0
		176	#endif
		177	#ifndef POSIX_FADV_WILLNEED
		178	# define POSIX_FADV_WILLNEED 0
		179	#endif
		180	#ifndef POSIX_FADV_DONTNEED
		181	# define POSIX_FADV_DONTNEED 0
		182	#endif
		183
		184	#if !HAVE_POSIX_FADVISE
		185	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		186	#endif
		187
		188	#ifndef POSIX_MADV_NORMAL
		189	# define POSIX_MADV_NORMAL 0
		190	#endif
		191	#ifndef POSIX_MADV_SEQUENTIAL
		192	# define POSIX_MADV_SEQUENTIAL 0
		193	#endif
		194	#ifndef POSIX_MADV_RANDOM
		195	# define POSIX_MADV_RANDOM 0
		196	#endif
		197	#ifndef POSIX_MADV_WILLNEED
		198	# define POSIX_MADV_WILLNEED 0
		199	#endif
		200	#ifndef POSIX_MADV_DONTNEED
		201	# define POSIX_MADV_DONTNEED 0
		202	#endif
		203
		204	#if !HAVE_POSIX_MADVISE
		205	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		206	#endif
		207
		208	#ifndef PROT_NONE
		209	# define PROT_NONE 0
		210	#endif
		211	#ifndef PROT_READ
		212	# define PROT_READ 0
		213	#endif
		214	#ifndef PROT_WRITE
		215	# define PROT_READ 0
		216	#endif
		217	#ifndef PROT_EXEC
		218	# define PROT_EXEC 0
		219	#endif
		220
		221	#ifndef ST_RDONLY
		222	# define ST_RDONLY 0
		223	#endif
		224	#ifndef ST_NOSUID
		225	# define ST_NOSUID 0
		226	#endif
		227	#ifndef ST_NODEV
		228	# define ST_NODEV 0
		229	#endif
		230	#ifndef ST_NOEXEC
		231	# define ST_NOEXEC 0
		232	#endif
		233	#ifndef ST_SYNCHRONOUS
		234	# define ST_SYNCHRONOUS 0
		235	#endif
		236	#ifndef ST_MANDLOCK
		237	# define ST_MANDLOCK 0
		238	#endif
		239	#ifndef ST_WRITE
		240	# define ST_WRITE 0
		241	#endif
		242	#ifndef ST_APPEND
		243	# define ST_APPEND 0
		244	#endif
		245	#ifndef ST_IMMUTABLE
		246	# define ST_IMMUTABLE 0
		247	#endif
		248	#ifndef ST_NOATIME
		249	# define ST_NOATIME 0
		250	#endif
		251	#ifndef ST_NODIRATIME
		252	# define ST_NODIRATIME 0
		253	#endif
		254	#ifndef ST_RELATIME
		255	# define ST_RELATIME 0
		256	#endif
		257
		258	#ifndef S_IFIFO
		259	# define S_IFIFO 0
		260	#endif
		261	#ifndef S_IFCHR
		262	# define S_IFCHR 0
		263	#endif
		264	#ifndef S_IFBLK
		265	# define S_IFBLK 0
		266	#endif
		267	#ifndef S_IFLNK
		268	# define S_IFLNK 0
		269	#endif
		270	#ifndef S_IFREG
		271	# define S_IFREG 0
		272	#endif
		273	#ifndef S_IFDIR
		274	# define S_IFDIR 0
		275	#endif
		276	#ifndef S_IFWHT
		277	# define S_IFWHT 0
		278	#endif
		279	#ifndef S_IFSOCK
		280	# define S_IFSOCK 0
		281	#endif
		282
		283	#ifndef MAP_ANONYMOUS
		284	# ifdef MAP_ANON
		285	# define MAP_ANONYMOUS MAP_ANON
34	# else	286	# else
35	# error sendfile support requested but not available	287	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36	# endif	288	# endif
37	#endif	289	#endif
38		290	#ifndef MAP_HUGETLB
39	/* used for struct dirent, AIX doesn't provide it */	291	# define MAP_HUGETLB 0
40	#ifndef NAME_MAX
41	# define NAME_MAX 4096
42	#endif	292	#endif
43		293	#ifndef MAP_LOCKED
44	#if __ia64	294	# define MAP_LOCKED 0
45	# define STACKSIZE 65536
46	#else
47	# define STACKSIZE 8192
48	#endif	295	#endif
		296	#ifndef MAP_NORESERVE
		297	# define MAP_NORESERVE 0
		298	#endif
		299	#ifndef MAP_POPULATE
		300	# define MAP_POPULATE 0
		301	#endif
		302	#ifndef MAP_NONBLOCK
		303	# define MAP_NONBLOCK 0
		304	#endif
		305
		306	#ifndef makedev
		307	# define makedev(maj,min) (((maj) << 8) | (min))
		308	#endif
		309	#ifndef major
		310	# define major(dev) ((dev) >> 8)
		311	#endif
		312	#ifndef minor
		313	# define minor(dev) ((dev) & 0xff)
		314	#endif
		315
		316	#ifndef PAGESIZE
		317	# define PAGESIZE sysconf (_SC_PAGESIZE)
		318	#endif
		319
		320	static int req_invoke (eio_req *req);
		321	#define EIO_FINISH(req) req_invoke (req)
		322	static void req_destroy (eio_req *grp);
		323	#define EIO_DESTROY(req) req_destroy (req)
49		324
50	enum {	325	enum {
51	REQ_QUIT,	326	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
52	REQ_OPEN, REQ_CLOSE,
53	REQ_READ, REQ_WRITE, REQ_READAHEAD,
54	REQ_SENDFILE,
55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56	REQ_FSYNC, REQ_FDATASYNC,
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58	REQ_READDIR,
59	REQ_LINK, REQ_SYMLINK,
60	REQ_SLEEP,
61	REQ_GROUP,
62	};	327	};
63		328
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	329	#include "libeio/eio.c"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		330
67	typedef struct aio_cb
68	{
69	struct aio_cb *grp, *grp_prev, *grp_next;
70
71	struct aio_cb *volatile next;
72
73	SV *self; /* the perl counterpart of this request, if any */
74
75	SV *data, *callback;
76	SV *fh, *fh2;
77	void *dataptr, *data2ptr;
78	Stat_t *statdata;
79	off_t offset;
80	size_t length;
81	ssize_t result;
82
83	int type;
84	int fd, fd2;
85	int errorno;
86	STRLEN dataoffset;
87	mode_t mode; /* open */
88	unsigned char cancelled;
89	} aio_cb;
90
91	typedef aio_cb *aio_req;	331	typedef eio_req *aio_req;
92	typedef aio_cb *aio_req_ornot;	332	typedef eio_req *aio_req_ornot;
93	typedef aio_cb *aio_group;
94		333
95	static int started, wanted;	334	static SV *on_next_submit;
96	static volatile int nreqs;	335	static int next_pri = EIO_PRI_DEFAULT;
97	static int max_outstanding = 1<<30;	336	static int max_outstanding;
98	static int respipe [2];
99		337
100	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	338	static s_epipe respipe;
101	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
102	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
103		339
104	static volatile aio_req reqs, reqe; /* queue start, queue end */	340	static void req_destroy (aio_req req);
105	static volatile aio_req ress, rese; /* queue start, queue end */
106
107	static void req_free (aio_req req);	341	static void req_cancel (aio_req req);
		342
		343	static void want_poll (void)
		344	{
		345	/* write a dummy byte to the pipe so fh becomes ready */
		346	s_epipe_signal (&respipe);
		347	}
		348
		349	static void done_poll (void)
		350	{
		351	/* read any signals sent by the worker threads */
		352	s_epipe_drain (&respipe);
		353	}
108		354
109	/* must be called at most once */	355	/* must be called at most once */
110	static SV *req_sv (aio_req req, const char *klass)	356	static SV *req_sv (aio_req req, HV *stash)
111	{	357	{
		358	if (!req->self)
		359	{
112	req->self = (SV *)newHV ();	360	req->self = (SV *)newHV ();
113	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	361	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		362	}
114		363
115	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	364	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
116	}	365	}
117		366
118	static aio_req SvAIO_REQ (SV *sv)	367	static aio_req SvAIO_REQ (SV *sv)
119	{	368	{
120	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	369	MAGIC *mg;
		370
		371	if (!SvROK (sv)
		372	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		373	&& SvSTASH (SvRV (sv)) != aio_req_stash
		374	&& !sv_derived_from (sv, "IO::AIO::REQ")))
121	croak ("object of class " AIO_REQ_KLASS " expected");	375	croak ("object of class IO::AIO::REQ expected");
122		376
123	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	377	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
124		378
125	return mg ? (aio_req)mg->mg_ptr : 0;	379	return mg ? (aio_req)mg->mg_ptr : 0;
126	}	380	}
127		381
128	static void poll_wait ()	382	static void aio_grp_feed (aio_req grp)
129	{	383	{
130	if (nreqs && !ress)	384	if (grp->sv2 && SvOK (grp->sv2))
131	{	385	{
132	fd_set rfd;	386	dSP;
133	FD_ZERO(&rfd);
134	FD_SET(respipe [0], &rfd);
135		387
136	select (respipe [0] + 1, &rfd, 0, 0, 0);	388	ENTER;
		389	SAVETMPS;
		390	PUSHMARK (SP);
		391	XPUSHs (req_sv (grp, aio_grp_stash));
		392	PUTBACK;
		393	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
		394	SPAGAIN;
		395	FREETMPS;
		396	LEAVE;
137	}	397	}
138	}	398	}
139		399
140	static void req_invoke (aio_req req)	400	static void req_submit (eio_req *req)
141	{	401	{
142	dSP;	402	eio_submit (req);
143	int errorno = errno;
144		403
145	if (req->cancelled || !SvOK (req->callback))	404	if (expect_false (on_next_submit))
146	return;
147
148	errno = req->errorno;
149
150	ENTER;
151	PUSHMARK (SP);
152
153	switch (req->type)
154	{	405	{
155	case REQ_READDIR:	406	dSP;
		407	SV *cb = sv_2mortal (on_next_submit);
		408
		409	on_next_submit = 0;
		410
		411	PUSHMARK (SP);
		412	PUTBACK;
		413	call_sv (cb, G_DISCARD | G_EVAL);
		414	}
		415	}
		416
		417	static int req_invoke (eio_req *req)
		418	{
		419	if (req->flags & FLAG_SV2_RO_OFF)
		420	SvREADONLY_off (req->sv2);
		421
		422	if (!EIO_CANCELLED (req) && req->callback)
		423	{
		424	dSP;
		425	static SV *sv_result_cache; /* caches the result integer SV */
		426	SV *sv_result;
		427
		428	ENTER;
		429	SAVETMPS;
		430	PUSHMARK (SP);
		431	EXTEND (SP, 1);
		432
		433	/* do not recreate the result IV from scratch each time */
		434	if (expect_true (sv_result_cache))
156	{	435	{
157	SV *rv = &PL_sv_undef;	436	sv_result = sv_result_cache; sv_result_cache = 0;
		437	SvIV_set (sv_result, req->result);
		438	SvIOK_only (sv_result);
		439	}
		440	else
		441	{
		442	sv_result = newSViv (req->result);
		443	SvREADONLY_on (sv_result);
		444	}
158		445
159	if (req->result >= 0)	446	switch (req->type)
		447	{
		448	case EIO_READDIR:
160	{	449	{
161	char *buf = req->data2ptr;	450	SV *rv = &PL_sv_undef;
162	AV *av = newAV ();
163		451
164	while (req->result)	452	if (req->result >= 0)
165	{	453	{
		454	int i;
		455	char *names = (char *)req->ptr2;
		456	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
166	SV *sv = newSVpv (buf, 0);	457	AV *av = newAV ();
167		458
168	av_push (av, sv);	459	av_extend (av, req->result - 1);
		460
		461	for (i = 0; i < req->result; ++i)
		462	{
		463	if (req->int1 & EIO_READDIR_DENTS)
		464	{
		465	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
		466
		467	if (req->int1 & EIO_READDIR_CUSTOM2)
		468	{
		469	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		470	AV *avent = newAV ();
		471
		472	av_extend (avent, 2);
		473
		474	if (!sv_type [ent->type])
		475	{
		476	sv_type [ent->type] = newSViv (ent->type);
		477	SvREADONLY_on (sv_type [ent->type]);
		478	}
		479
		480	av_store (avent, 0, namesv);
		481	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		482	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		483
		484	av_store (av, i, newRV_noinc ((SV *)avent));
		485	}
		486	else
		487	av_store (av, i, namesv);
		488
		489	++ent;
		490	}
		491	else
		492	{
		493	SV *name = newSVpv (names, 0);
		494	av_store (av, i, name);
169	buf += SvCUR (sv) + 1;	495	names += SvCUR (name) + 1;
170	req->result--;	496	}
		497	}
		498
		499	rv = sv_2mortal (newRV_noinc ((SV *)av));
171	}	500	}
172		501
173	rv = sv_2mortal (newRV_noinc ((SV *)av));	502	PUSHs (rv);
		503
		504	if (req->int1 & EIO_READDIR_CUSTOM1)
		505	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
174	}	506	}
		507	break;
175		508
		509	case EIO_OPEN:
		510	{
		511	/* convert fd to fh */
		512	SV *fh = &PL_sv_undef;
		513
		514	if (req->result >= 0)
		515	{
		516	GV *gv = (GV *)sv_newmortal ();
		517	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		518	char sym [64];
		519	int symlen;
		520
		521	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
		522	gv_init (gv, aio_stash, sym, symlen, 0);
		523
		524	symlen = snprintf (
		525	sym,
		526	sizeof (sym),
		527	"%s&=%d",
		528	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		529	(int)req->result
		530	);
		531
		532	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		533	fh = (SV *)gv;
		534	}
		535
		536	PUSHs (fh);
		537	}
		538	break;
		539
		540	case EIO_STATVFS:
		541	case EIO_FSTATVFS:
		542	{
		543	SV *rv = &PL_sv_undef;
		544
		545	#ifndef _WIN32
		546	if (req->result >= 0)
		547	{
		548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		549	HV *hv = newHV ();
		550
		551	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		552
		553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		555	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		564	}
		565	#endif
		566
176	XPUSHs (rv);	567	PUSHs (rv);
		568	}
		569
		570	break;
		571
		572	case EIO_GROUP:
		573	req->int1 = 2; /* mark group as finished */
		574
		575	if (req->sv1)
		576	{
		577	int i;
		578	AV *av = (AV *)req->sv1;
		579
		580	EXTEND (SP, AvFILL (av) + 1);
		581	for (i = 0; i <= AvFILL (av); ++i)
		582	PUSHs (*av_fetch (av, i, 0));
		583	}
		584	break;
		585
		586	case EIO_NOP:
		587	case EIO_BUSY:
		588	break;
		589
		590	case EIO_READLINK:
		591	case EIO_REALPATH:
		592	if (req->result > 0)
		593	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
		594	break;
		595
		596	case EIO_STAT:
		597	case EIO_LSTAT:
		598	case EIO_FSTAT:
		599	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		600	PL_laststatval = req->result;
		601	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		602	PUSHs (sv_result);
		603	break;
		604
		605	case EIO_READ:
		606	{
		607	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		608	*SvEND (req->sv2) = 0;
		609	SvPOK_only (req->sv2);
		610	SvSETMAGIC (req->sv2);
		611	PUSHs (sv_result);
		612	}
		613	break;
		614
		615	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
		616	if (req->result > 0)
		617	SvIV_set (sv_result, 0);
		618	/* FALLTHROUGH */
		619
		620	default:
		621	PUSHs (sv_result);
		622	break;
177	}	623	}
178	break;
179		624
180	case REQ_OPEN:	625	errno = req->errorno;
181	{
182	/* convert fd to fh */
183	SV *fh;
184		626
185	XPUSHs (sv_2mortal (newSViv (req->result)));
186	PUTBACK;	627	PUTBACK;
187	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	628	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
188	SPAGAIN;	629	SPAGAIN;
189		630
190	fh = SvREFCNT_inc (POPs);	631	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		632	SvREFCNT_dec (sv_result);
		633	else
		634	sv_result_cache = sv_result;
191		635
192	PUSHMARK (SP);	636	FREETMPS;
193	XPUSHs (sv_2mortal (fh));	637	LEAVE;
194	}
195	break;
196		638
197	case REQ_SLEEP:	639	PUTBACK;
198	case REQ_GROUP:
199	break;
200
201	default:
202	XPUSHs (sv_2mortal (newSViv (req->result)));
203	break;
204	}	640	}
205		641
206		642	return !!SvTRUE (ERRSV);
207	PUTBACK;
208	call_sv (req->callback, G_VOID | G_EVAL);
209	SPAGAIN;
210
211	if (SvTRUE (ERRSV))
212	{
213	req_free (req);
214	croak (0);
215	}
216
217	LEAVE;
218
219	errno = errorno;
220	}	643	}
221		644
222	static void req_free (aio_req req)	645	static void req_destroy (aio_req req)
223	{	646	{
224	if (req->grp)
225	{
226	aio_req grp = req->grp;
227
228	/* unlink request */
229	req->grp_next->grp_prev = req->grp_prev;
230	req->grp_prev->grp_next = req->grp_next;
231
232	if (grp->grp_next == grp)
233	{
234	req_invoke (grp);
235	req_free (grp);
236	}
237	}
238
239	if (req->self)	647	if (req->self)
240	{	648	{
241	sv_unmagic (req->self, PERL_MAGIC_ext);	649	sv_unmagic (req->self, PERL_MAGIC_ext);
242	SvREFCNT_dec (req->self);	650	SvREFCNT_dec (req->self);
243	}	651	}
244		652
245	if (req->data)
246	SvREFCNT_dec (req->data);
247
248	if (req->fh)
249	SvREFCNT_dec (req->fh);	653	SvREFCNT_dec (req->sv1);
250
251	if (req->fh2)
252	SvREFCNT_dec (req->fh2);	654	SvREFCNT_dec (req->sv2);
253
254	if (req->statdata)
255	Safefree (req->statdata);
256
257	if (req->callback)
258	SvREFCNT_dec (req->callback);	655	SvREFCNT_dec (req->callback);
259
260	if (req->type == REQ_READDIR && req->result >= 0)
261	free (req->data2ptr);
262		656
263	Safefree (req);	657	Safefree (req);
264	}	658	}
265		659
266	static void req_cancel (aio_req req)	660	static void req_cancel_subs (aio_req grp)
267	{	661	{
268	req->cancelled = 1;	662	aio_req sub;
269		663
270	if (req->type == REQ_GROUP)	664	if (grp->type != EIO_GROUP)
		665	return;
		666
		667	SvREFCNT_dec (grp->sv2);
		668	grp->sv2 = 0;
		669
		670	eio_grp_cancel (grp);
		671	}
		672
		673	static void create_respipe (void)
		674	{
		675	if (s_epipe_renew (&respipe))
		676	croak ("IO::AIO: unable to initialize result pipe");
		677	}
		678
		679	static void poll_wait (void)
		680	{
		681	while (eio_nreqs ())
271	{	682	{
272	aio_req sub;	683	int size;
273		684
274	for (sub = req->grp_next; sub != req; sub = sub->grp_next)	685	X_LOCK (reslock);
275	req_cancel (sub);	686	size = res_queue.size;
		687	X_UNLOCK (reslock);
		688
		689	if (size)
		690	return;
		691
		692	etp_maybe_start_thread ();
		693
		694	s_epipe_wait (&respipe);
276	}	695	}
277	}	696	}
278		697
279	static int poll_cb ()	698	static int poll_cb (void)
280	{	699	{
281	dSP;
282	int count = 0;
283	int do_croak = 0;
284	aio_req req;
285
286	for (;;)	700	for (;;)
287	{	701	{
288	pthread_mutex_lock (&reslock);	702	int res = eio_poll ();
289	req = ress;
290		703
291	if (req)	704	if (res > 0)
292	{
293	ress = req->next;
294
295	if (!ress)
296	{
297	/* read any signals sent by the worker threads */
298	char buf [32];
299	while (read (respipe [0], buf, 32) == 32)
300	;
301
302	rese = 0;
303	}
304	}
305
306	pthread_mutex_unlock (&reslock);
307
308	if (!req)
309	break;	705	croak (0);
310		706
311	nreqs--;	707	if (!max_outstanding || max_outstanding > eio_nreqs ())
		708	return res;
312		709
313	if (req->type == REQ_QUIT)	710	poll_wait ();
314	started--;
315	else if (req->type == REQ_GROUP && req->grp_next != req)
316	continue;
317	else
318	{
319	if (req->type == REQ_READ)
320	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
321
322	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
323	SvREADONLY_off (req->data);
324
325	if (req->statdata)
326	{
327	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
328	PL_laststatval = req->result;
329	PL_statcache = *(req->statdata);
330	}
331
332	req_invoke (req);
333
334	count++;
335	}
336
337	req_free (req);
338	}	711	}
339
340	return count;
341	}	712	}
342		713
343	static void *aio_proc(void *arg);
344
345	static void start_thread (void)	714	static void atfork_child (void)
346	{	715	{
347	sigset_t fullsigset, oldsigset;	716	create_respipe ();
348	pthread_t tid;
349	pthread_attr_t attr;
350
351	pthread_attr_init (&attr);
352	pthread_attr_setstacksize (&attr, STACKSIZE);
353	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
354
355	sigfillset (&fullsigset);
356	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
357
358	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
359	started++;
360
361	sigprocmask (SIG_SETMASK, &oldsigset, 0);
362	}
363
364	static void req_send (aio_req req)
365	{
366	while (started < wanted && nreqs >= started)
367	start_thread ();
368
369	nreqs++;
370
371	pthread_mutex_lock (&reqlock);
372
373	req->next = 0;
374
375	if (reqe)
376	{
377	reqe->next = req;
378	reqe = req;
379	}
380	else
381	reqe = reqs = req;
382
383	pthread_cond_signal (&reqwait);
384	pthread_mutex_unlock (&reqlock);
385
386	if (nreqs > max_outstanding)
387	for (;;)
388	{
389	poll_cb ();
390
391	if (nreqs <= max_outstanding)
392	break;
393
394	poll_wait ();
395	}
396	}
397
398	static void end_thread (void)
399	{
400	aio_req req;
401	Newz (0, req, 1, aio_cb);
402	req->type = REQ_QUIT;
403
404	req_send (req);
405	}
406
407	static void min_parallel (int nthreads)
408	{
409	if (wanted < nthreads)
410	wanted = nthreads;
411	}
412
413	static void max_parallel (int nthreads)
414	{
415	int cur = started;
416
417	if (wanted > nthreads)
418	wanted = nthreads;
419
420	while (cur > wanted)
421	{
422	end_thread ();
423	cur--;
424	}
425
426	while (started > wanted)
427	{
428	poll_wait ();
429	poll_cb ();
430	}
431	}
432
433	static void create_pipe ()
434	{
435	if (pipe (respipe))
436	croak ("unable to initialize result pipe");
437
438	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
439	croak ("cannot set result pipe to nonblocking mode");
440
441	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
442	croak ("cannot set result pipe to nonblocking mode");
443	}	717	}
444		718
445	/*****************************************************************************/	719	/*****************************************************************************/
446	/* work around various missing functions */
447		720
448	#if !HAVE_PREADWRITE	721	#if !_POSIX_MAPPED_FILES
449	# define pread aio_pread	722	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
450	# define pwrite aio_pwrite	723	# define munmap(addr,length) (errno = ENOSYS, -1)
451
452	/*
453	* make our pread/pwrite safe against themselves, but not against
454	* normal read/write by using a mutex. slows down execution a lot,
455	* but that's your problem, not mine.
456	*/
457	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
458
459	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
460	{
461	ssize_t res;
462	off_t ooffset;
463
464	pthread_mutex_lock (&preadwritelock);
465	ooffset = lseek (fd, 0, SEEK_CUR);
466	lseek (fd, offset, SEEK_SET);
467	res = read (fd, buf, count);
468	lseek (fd, ooffset, SEEK_SET);
469	pthread_mutex_unlock (&preadwritelock);
470
471	return res;
472	}
473
474	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
475	{
476	ssize_t res;
477	off_t ooffset;
478
479	pthread_mutex_lock (&preadwritelock);
480	ooffset = lseek (fd, 0, SEEK_CUR);
481	lseek (fd, offset, SEEK_SET);
482	res = write (fd, buf, count);
483	lseek (fd, offset, SEEK_SET);
484	pthread_mutex_unlock (&preadwritelock);
485
486	return res;
487	}
488	#endif
489
490	#if !HAVE_FDATASYNC
491	# define fdatasync fsync
492	#endif
493
494	#if !HAVE_READAHEAD
495	# define readahead aio_readahead
496
497	static ssize_t readahead (int fd, off_t offset, size_t count)
498	{
499	char readahead_buf[4096];
500
501	while (count > 0)
502	{
503	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
504
505	pread (fd, readahead_buf, len, offset);
506	offset += len;
507	count -= len;
508	}
509
510	errno = 0;
511	}
512	#endif
513
514	#if !HAVE_READDIR_R
515	# define readdir_r aio_readdir_r
516
517	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
518
519	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
520	{
521	struct dirent *e;
522	int errorno;
523
524	pthread_mutex_lock (&readdirlock);
525
526	e = readdir (dirp);
527	errorno = errno;
528
529	if (e)
530	{
531	*res = ent;
532	strcpy (ent->d_name, e->d_name);
533	}
534	else
535	*res = 0;
536
537	pthread_mutex_unlock (&readdirlock);
538
539	errno = errorno;
540	return e ? 0 : -1;
541	}
542	#endif
543
544	/* sendfile always needs emulation */
545	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
546	{
547	ssize_t res;
548
549	if (!count)
550	return 0;
551
552	#if HAVE_SENDFILE
553	# if __linux
554	res = sendfile (ofd, ifd, &offset, count);
555
556	# elif __freebsd
557	/*
558	* Of course, the freebsd sendfile is a dire hack with no thoughts
559	* wasted on making it similar to other I/O functions.
560	*/
561	{
562	off_t sbytes;
563	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
564
565	if (res < 0 && sbytes)
566	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
567	res = sbytes;
568	}
569
570	# elif __hpux
571	res = sendfile (ofd, ifd, offset, count, 0, 0);
572
573	# elif __solaris
574	{
575	struct sendfilevec vec;
576	size_t sbytes;
577
578	vec.sfv_fd = ifd;
579	vec.sfv_flag = 0;
580	vec.sfv_off = offset;
581	vec.sfv_len = count;
582
583	res = sendfilev (ofd, &vec, 1, &sbytes);
584
585	if (res < 0 && sbytes)
586	res = sbytes;
587	}
588
589	# endif	724	#endif
590	#else
591	res = -1;
592	errno = ENOSYS;
593	#endif
594		725
595	if (res < 0	726	#if !_POSIX_MEMORY_PROTECTION
596	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK	727	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
597	#if __solaris	728	# define PROT_NONE 0
598	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE	729	# define PROT_WRITE 0
		730	# define MAP_PRIVATE 0
		731	# define MAP_SHARED 0
		732	# define MAP_FIXED 0
599	#endif	733	#endif
600	)
601	)
602	{
603	/* emulate sendfile. this is a major pain in the ass */
604	char buf[4096];
605	res = 0;
606		734
607	while (count)	735	#define MMAP_MAGIC PERL_MAGIC_ext
608	{
609	ssize_t cnt;
610
611	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
612		736
613	if (cnt <= 0)	737	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
614	{
615	if (cnt && !res) res = -1;
616	break;
617	}
618
619	cnt = write (ofd, buf, cnt);
620
621	if (cnt <= 0)
622	{
623	if (cnt && !res) res = -1;
624	break;
625	}
626
627	offset += cnt;
628	res += cnt;
629	count -= cnt;
630	}
631	}
632
633	return res;
634	}
635
636	/* read a full directory */
637	static int scandir_ (const char *path, void **namesp)
638	{	738	{
639	DIR *dirp = opendir (path);	739	int old_errno = errno;
640	union	740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
641	{
642	struct dirent d;
643	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
644	} u;
645	struct dirent *entp;
646	char *name, *names;
647	int memlen = 4096;
648	int memofs = 0;
649	int res = 0;
650	int errorno;
651
652	if (!dirp)
653	return -1;
654
655	names = malloc (memlen);
656
657	for (;;)
658	{
659	errno = 0, readdir_r (dirp, &u.d, &entp);
660
661	if (!entp)
662	break;
663
664	name = entp->d_name;
665
666	if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
667	{
668	int len = strlen (name) + 1;
669
670	res++;
671
672	while (memofs + len > memlen)
673	{
674	memlen *= 2;
675	names = realloc (names, memlen);
676	if (!names)
677	break;
678	}
679
680	memcpy (names + memofs, name, len);
681	memofs += len;
682	}
683	}
684
685	errorno = errno;	741	errno = old_errno;
686	closedir (dirp);
687		742
688	if (errorno)	743	mg->mg_obj = 0; /* just in case */
689	{
690	free (names);
691	errno = errorno;
692	res = -1;
693	}
694		744
695	*namesp = (void *)names;	745	SvREADONLY_off (sv);
		746
		747	if (SvPVX (sv) != mg->mg_ptr)
		748	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		749
		750	SvCUR_set (sv, 0);
		751	SvPVX (sv) = 0;
		752	SvOK_off (sv);
		753
696	return res;	754	return 0;
697	}	755	}
		756
		757	static MGVTBL mmap_vtbl = {
		758	0, 0, 0, 0, mmap_free
		759	};
698		760
699	/*****************************************************************************/	761	/*****************************************************************************/
700		762
701	static void *aio_proc (void *thr_arg)	763	static SV * get_cb (SV *cb_sv)
702	{	764	{
703	aio_req req;	765	SvGETMAGIC (cb_sv);
704	int type;	766	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
705
706	do
707	{
708	pthread_mutex_lock (&reqlock);
709
710	for (;;)
711	{
712	req = reqs;
713
714	if (reqs)
715	{
716	reqs = reqs->next;
717	if (!reqs) reqe = 0;
718	}
719
720	if (req)
721	break;
722
723	pthread_cond_wait (&reqwait, &reqlock);
724	}
725
726	pthread_mutex_unlock (&reqlock);
727
728	errno = 0; /* strictly unnecessary */
729
730	if (!req->cancelled)
731	switch (req->type)
732	{
733	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
734	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
735
736	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
737	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
738
739	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
740	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
741	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
742
743	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
744	case REQ_CLOSE: req->result = close (req->fd); break;
745	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
746	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
747	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
748	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
749	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
750
751	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
752	case REQ_FSYNC: req->result = fsync (req->fd); break;
753	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
754
755	case REQ_SLEEP:
756	{
757	struct timeval tv;
758
759	tv.tv_sec = req->fd;
760	tv.tv_usec = req->fd2;
761
762	req->result = select (0, 0, 0, 0, &tv);
763	}
764
765	case REQ_QUIT:
766	break;
767
768	default:
769	req->result = ENOSYS;
770	break;
771	}
772
773	req->errorno = errno;
774
775	pthread_mutex_lock (&reslock);
776
777	req->next = 0;
778
779	if (rese)
780	{
781	rese->next = req;
782	rese = req;
783	}
784	else
785	{
786	rese = ress = req;
787
788	/* write a dummy byte to the pipe so fh becomes ready */
789	write (respipe [1], &respipe, 1);
790	}
791
792	pthread_mutex_unlock (&reslock);
793	}
794	while (type != REQ_QUIT);
795
796	return 0;
797	}
798
799	/*****************************************************************************/
800
801	static void atfork_prepare (void)
802	{
803	pthread_mutex_lock (&reqlock);
804	pthread_mutex_lock (&reslock);
805	#if !HAVE_PREADWRITE
806	pthread_mutex_lock (&preadwritelock);
807	#endif
808	#if !HAVE_READDIR_R
809	pthread_mutex_lock (&readdirlock);
810	#endif
811	}
812
813	static void atfork_parent (void)
814	{
815	#if !HAVE_READDIR_R
816	pthread_mutex_unlock (&readdirlock);
817	#endif
818	#if !HAVE_PREADWRITE
819	pthread_mutex_unlock (&preadwritelock);
820	#endif
821	pthread_mutex_unlock (&reslock);
822	pthread_mutex_unlock (&reqlock);
823	}
824
825	static void atfork_child (void)
826	{
827	aio_req prv;
828
829	started = 0;
830
831	while (reqs)
832	{
833	prv = reqs;
834	reqs = prv->next;
835	req_free (prv);
836	}
837
838	reqs = reqe = 0;
839
840	while (ress)
841	{
842	prv = ress;
843	ress = prv->next;
844	req_free (prv);
845	}
846
847	ress = rese = 0;
848
849	close (respipe [0]);
850	close (respipe [1]);
851	create_pipe ();
852
853	atfork_parent ();
854	}	767	}
855		768
856	#define dREQ \	769	#define dREQ \
		770	SV *cb_cv; \
857	aio_req req; \	771	aio_req req; \
		772	int req_pri = next_pri; \
		773	next_pri = EIO_PRI_DEFAULT; \
858	\	774	\
859	if (SvOK (callback) && !SvROK (callback)) \	775	cb_cv = get_cb (callback); \
860	croak ("callback must be undef or of reference type"); \
861	\	776	\
862	Newz (0, req, 1, aio_cb); \	777	Newz (0, req, 1, eio_req); \
863	if (!req) \	778	if (!req) \
864	croak ("out of memory during aio_req allocation"); \	779	croak ("out of memory during eio_req allocation"); \
865	\	780	\
866	req->callback = newSVsv (callback)	781	req->callback = SvREFCNT_inc (cb_cv); \
		782	req->pri = req_pri
867		783
868	#define REQ_SEND \	784	#define REQ_SEND \
		785	PUTBACK; \
869	req_send (req); \	786	req_submit (req); \
		787	SPAGAIN; \
870	\	788	\
871	if (GIMME_V != G_VOID) \	789	if (GIMME_V != G_VOID) \
872	XPUSHs (req_sv (req, AIO_REQ_KLASS));	790	XPUSHs (req_sv (req, aio_req_stash));
873		791
874	MODULE = IO::AIO PACKAGE = IO::AIO	792	MODULE = IO::AIO PACKAGE = IO::AIO
875		793
876	PROTOTYPES: ENABLE	794	PROTOTYPES: ENABLE
877		795
878	BOOT:	796	BOOT:
879	{	797	{
		798	static const struct {
		799	const char *name;
		800	IV iv;
		801	} *civ, const_iv[] = {
		802	# define const_niv(name, value) { # name, (IV) value },
		803	# define const_iv(name) { # name, (IV) name },
		804	# define const_eio(name) { # name, (IV) EIO_ ## name },
		805	const_iv (EXDEV)
		806	const_iv (ENOSYS)
		807	const_iv (O_RDONLY)
		808	const_iv (O_WRONLY)
		809	const_iv (O_RDWR)
		810	const_iv (O_CREAT)
		811	const_iv (O_TRUNC)
		812	const_iv (O_EXCL)
		813	const_iv (O_APPEND)
		814
		815	const_iv (O_ASYNC)
		816	const_iv (O_DIRECT)
		817	const_iv (O_NOATIME)
		818
		819	const_iv (O_CLOEXEC)
		820	const_iv (O_NOCTTY)
		821	const_iv (O_NOFOLLOW)
		822	const_iv (O_NONBLOCK)
		823	const_iv (O_EXEC)
		824	const_iv (O_SEARCH)
		825	const_iv (O_DIRECTORY)
		826	const_iv (O_DSYNC)
		827	const_iv (O_RSYNC)
		828	const_iv (O_SYNC)
		829	const_iv (O_TTY_INIT)
		830
		831	const_iv (S_IFIFO)
		832	const_iv (S_IFCHR)
		833	const_iv (S_IFBLK)
		834	const_iv (S_IFLNK)
		835	const_iv (S_IFREG)
		836	const_iv (S_IFDIR)
		837	const_iv (S_IFWHT)
		838	const_iv (S_IFSOCK)
		839	const_iv (S_IFMT)
		840
		841	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		842	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		843	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		844	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		845	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		846	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		847
		848	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		849	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		850	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		851	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		852	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		853
		854	const_iv (ST_RDONLY)
		855	const_iv (ST_NOSUID)
		856	const_iv (ST_NODEV)
		857	const_iv (ST_NOEXEC)
		858	const_iv (ST_SYNCHRONOUS)
		859	const_iv (ST_MANDLOCK)
		860	const_iv (ST_WRITE)
		861	const_iv (ST_APPEND)
		862	const_iv (ST_IMMUTABLE)
		863	const_iv (ST_NOATIME)
		864	const_iv (ST_NODIRATIME)
		865	const_iv (ST_RELATIME)
		866
		867	const_iv (PROT_NONE)
		868	const_iv (PROT_EXEC)
		869	const_iv (PROT_READ)
		870	const_iv (PROT_WRITE)
		871
		872	/*const_iv (MAP_FIXED)*/
		873	const_iv (MAP_PRIVATE)
		874	const_iv (MAP_SHARED)
		875	const_iv (MAP_ANONYMOUS)
		876
		877	/* linuxish */
		878	const_iv (MAP_HUGETLB)
		879	const_iv (MAP_LOCKED)
		880	const_iv (MAP_NORESERVE)
		881	const_iv (MAP_POPULATE)
		882	const_iv (MAP_NONBLOCK)
		883
		884	const_eio (MCL_FUTURE)
		885	const_eio (MCL_CURRENT)
		886
		887	const_eio (MS_ASYNC)
		888	const_eio (MS_INVALIDATE)
		889	const_eio (MS_SYNC)
		890
		891	const_eio (MT_MODIFY)
		892
		893	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		894	const_eio (SYNC_FILE_RANGE_WRITE)
		895	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		896
		897	const_eio (FALLOC_FL_KEEP_SIZE)
		898
		899	const_eio (READDIR_DENTS)
		900	const_eio (READDIR_DIRS_FIRST)
		901	const_eio (READDIR_STAT_ORDER)
		902	const_eio (READDIR_FOUND_UNKNOWN)
		903
		904	const_eio (DT_UNKNOWN)
		905	const_eio (DT_FIFO)
		906	const_eio (DT_CHR)
		907	const_eio (DT_DIR)
		908	const_eio (DT_BLK)
		909	const_eio (DT_REG)
		910	const_eio (DT_LNK)
		911	const_eio (DT_SOCK)
		912	const_eio (DT_WHT)
		913	};
		914
880	HV *stash = gv_stashpv ("IO::AIO", 1);	915	aio_stash = gv_stashpv ("IO::AIO" , 1);
881	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	916	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
882	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	917	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
883	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
884		918
		919	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		920	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		921
		922	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		923
885	create_pipe ();	924	create_respipe ();
886	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
887	}
888		925
		926	if (eio_init (want_poll, done_poll) < 0)
		927	croak ("IO::AIO: unable to initialise eio library");
		928
		929	/* atfork child called in fifo order, so before eio's handler */
		930	X_THREAD_ATFORK (0, 0, atfork_child);
		931	}
		932
889	void	933	void
890	min_parallel (nthreads)	934	max_poll_reqs (unsigned int nreqs)
891	int nthreads
892	PROTOTYPE: $	935	PROTOTYPE: $
		936	CODE:
		937	eio_set_max_poll_reqs (nreqs);
893		938
894	void	939	void
895	max_parallel (nthreads)	940	max_poll_time (double nseconds)
896	int nthreads
897	PROTOTYPE: $	941	PROTOTYPE: $
898
899	int
900	max_outstanding (nreqs)
901	int nreqs
902	PROTOTYPE: $
903	CODE:	942	CODE:
904	RETVAL = max_outstanding;	943	eio_set_max_poll_time (nseconds);
		944
		945	void
		946	min_parallel (unsigned int nthreads)
		947	PROTOTYPE: $
		948	CODE:
		949	eio_set_min_parallel (nthreads);
		950
		951	void
		952	max_parallel (unsigned int nthreads)
		953	PROTOTYPE: $
		954	CODE:
		955	eio_set_max_parallel (nthreads);
		956
		957	void
		958	max_idle (unsigned int nthreads)
		959	PROTOTYPE: $
		960	CODE:
		961	eio_set_max_idle (nthreads);
		962
		963	void
		964	idle_timeout (unsigned int seconds)
		965	PROTOTYPE: $
		966	CODE:
		967	eio_set_idle_timeout (seconds);
		968
		969	void
		970	max_outstanding (unsigned int maxreqs)
		971	PROTOTYPE: $
		972	CODE:
905	max_outstanding = nreqs;	973	max_outstanding = maxreqs;
906		974
907	void	975	void
908	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	976	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
909	SV * pathname
910	int flags
911	int mode
912	SV * callback
913	PROTOTYPE: $$$;$
914	PPCODE:	977	PPCODE:
915	{	978	{
916	dREQ;	979	dREQ;
917		980
918	req->type = REQ_OPEN;	981	req->type = EIO_OPEN;
919	req->data = newSVsv (pathname);	982	req->sv1 = newSVsv (pathname);
920	req->dataptr = SvPVbyte_nolen (req->data);	983	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	req->fd = flags;	984	req->int1 = flags;
922	req->mode = mode;	985	req->int2 = mode;
923		986
924	REQ_SEND;	987	REQ_SEND;
925	}	988	}
926		989
927	void	990	void
928	aio_close (fh,callback=&PL_sv_undef)	991	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
929	SV * fh
930	SV * callback
931	PROTOTYPE: $;$
932	ALIAS:	992	ALIAS:
933	aio_close = REQ_CLOSE
934	aio_fsync = REQ_FSYNC	993	aio_fsync = EIO_FSYNC
935	aio_fdatasync = REQ_FDATASYNC	994	aio_fdatasync = EIO_FDATASYNC
936	PPCODE:	995	PPCODE:
937	{	996	{
		997	int fd = s_fileno_croak (fh, 0);
938	dREQ;	998	dREQ;
939		999
940	req->type = ix;	1000	req->type = ix;
941	req->fh = newSVsv (fh);	1001	req->sv1 = newSVsv (fh);
942	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1002	req->int1 = fd;
943		1003
944	REQ_SEND (req);	1004	REQ_SEND (req);
945	}	1005	}
946		1006
947	void	1007	void
		1008	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1009	PPCODE:
		1010	{
		1011	int fd = s_fileno_croak (fh, 0);
		1012	dREQ;
		1013
		1014	req->type = EIO_SYNC_FILE_RANGE;
		1015	req->sv1 = newSVsv (fh);
		1016	req->int1 = fd;
		1017	req->offs = offset;
		1018	req->size = nbytes;
		1019	req->int2 = flags;
		1020
		1021	REQ_SEND (req);
		1022	}
		1023
		1024	void
		1025	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1026	PPCODE:
		1027	{
		1028	int fd = s_fileno_croak (fh, 0);
		1029	dREQ;
		1030
		1031	req->type = EIO_FALLOCATE;
		1032	req->sv1 = newSVsv (fh);
		1033	req->int1 = fd;
		1034	req->int2 = mode;
		1035	req->offs = offset;
		1036	req->size = len;
		1037
		1038	REQ_SEND (req);
		1039	}
		1040
		1041	void
		1042	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1043	PPCODE:
		1044	{
		1045	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1046	int fd = s_fileno_croak (fh, 0);
		1047	dREQ;
		1048
		1049	if (expect_false (close_fd < 0))
		1050	{
		1051	#ifdef _WIN32
		1052	close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);
		1053	#else
		1054	int pipefd [2];
		1055
		1056	if (pipe (pipefd) < 0
		1057	|| close (pipefd [1]) < 0
		1058	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
		1059	abort (); /*D*/
		1060
		1061	close_fd = pipefd [0];
		1062	#endif
		1063	}
		1064
		1065	req->type = EIO_DUP2;
		1066	req->int1 = close_fd;
		1067	req->sv2 = newSVsv (fh);
		1068	req->int2 = fd;
		1069
		1070	REQ_SEND (req);
		1071	}
		1072
		1073	void
948	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1074	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
949	SV * fh
950	UV offset
951	UV length
952	SV * data
953	UV dataoffset
954	SV * callback
955	ALIAS:	1075	ALIAS:
956	aio_read = REQ_READ	1076	aio_read = EIO_READ
957	aio_write = REQ_WRITE	1077	aio_write = EIO_WRITE
958	PROTOTYPE: $$$$$;$
959	PPCODE:	1078	PPCODE:
960	{	1079	{
961	aio_req req;
962	STRLEN svlen;	1080	STRLEN svlen;
		1081	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
963	char *svptr = SvPVbyte (data, svlen);	1082	char *svptr = SvPVbyte (data, svlen);
964		1083	UV len = SvUV (length);
965	SvUPGRADE (data, SVt_PV);
966	SvPOK_on (data);
967		1084
968	if (dataoffset < 0)	1085	if (dataoffset < 0)
969	dataoffset += svlen;	1086	dataoffset += svlen;
970		1087
971	if (dataoffset < 0 || dataoffset > svlen)	1088	if (dataoffset < 0 || dataoffset > svlen)
972	croak ("data offset outside of string");	1089	croak ("dataoffset outside of data scalar");
973		1090
974	if (ix == REQ_WRITE)	1091	if (ix == EIO_WRITE)
975	{	1092	{
976	/* write: check length and adjust. */	1093	/* write: check length and adjust. */
977	if (length < 0 || length + dataoffset > svlen)	1094	if (!SvOK (length) || len + dataoffset > svlen)
978	length = svlen - dataoffset;	1095	len = svlen - dataoffset;
979	}	1096	}
980	else	1097	else
981	{	1098	{
982	/* read: grow scalar as necessary */	1099	/* read: check type and grow scalar as necessary */
		1100	SvUPGRADE (data, SVt_PV);
983	svptr = SvGROW (data, length + dataoffset);	1101	svptr = SvGROW (data, len + dataoffset + 1);
984	}	1102	}
985
986	if (length < 0)
987	croak ("length must not be negative");
988		1103
989	{	1104	{
990	dREQ;	1105	dREQ;
991		1106
992	req->type = ix;	1107	req->type = ix;
993	req->fh = newSVsv (fh);	1108	req->sv1 = newSVsv (fh);
994	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1109	req->int1 = fd;
995	: IoOFP (sv_2io (fh)));	1110	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
996	req->offset = offset;	1111	req->size = len;
997	req->length = length;
998	req->data = SvREFCNT_inc (data);	1112	req->sv2 = SvREFCNT_inc (data);
999	req->dataptr = (char *)svptr + dataoffset;	1113	req->ptr2 = (char *)svptr + dataoffset;
		1114	req->stroffset = dataoffset;
1000		1115
1001	if (!SvREADONLY (data))	1116	if (!SvREADONLY (data))
1002	{	1117	{
1003	SvREADONLY_on (data);	1118	SvREADONLY_on (data);
1004	req->data2ptr = (void *)data;	1119	req->flags |= FLAG_SV2_RO_OFF;
1005	}	1120	}
1006		1121
1007	REQ_SEND;	1122	REQ_SEND;
1008	}	1123	}
1009	}	1124	}
1010		1125
1011	void	1126	void
1012	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1127	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1013	SV * out_fh	1128	ALIAS:
1014	SV * in_fh	1129	aio_readlink = EIO_READLINK
1015	UV in_offset	1130	aio_realpath = EIO_REALPATH
1016	UV length
1017	SV * callback
1018	PROTOTYPE: $$$$;$
1019	PPCODE:	1131	PPCODE:
1020	{	1132	{
		1133	SV *data;
		1134	dREQ;
		1135
		1136	req->type = ix;
		1137	req->sv1 = newSVsv (path);
		1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1139
		1140	REQ_SEND;
		1141	}
		1142
		1143	void
		1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
		1145	PPCODE:
		1146	{
		1147	int ifd = s_fileno_croak (in_fh , 0);
		1148	int ofd = s_fileno_croak (out_fh, 1);
1021	dREQ;	1149	dREQ;
1022		1150
1023	req->type = REQ_SENDFILE;	1151	req->type = EIO_SENDFILE;
1024	req->fh = newSVsv (out_fh);	1152	req->sv1 = newSVsv (out_fh);
1025	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1153	req->int1 = ofd;
1026	req->fh2 = newSVsv (in_fh);	1154	req->sv2 = newSVsv (in_fh);
1027	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1155	req->int2 = ifd;
1028	req->offset = in_offset;	1156	req->offs = in_offset;
1029	req->length = length;	1157	req->size = length;
1030		1158
1031	REQ_SEND;	1159	REQ_SEND;
1032	}	1160	}
1033		1161
1034	void	1162	void
1035	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1036	SV * fh
1037	UV offset
1038	IV length
1039	SV * callback
1040	PROTOTYPE: $$$;$
1041	PPCODE:	1164	PPCODE:
1042	{	1165	{
		1166	int fd = s_fileno_croak (fh, 0);
1043	dREQ;	1167	dREQ;
1044		1168
1045	req->type = REQ_READAHEAD;	1169	req->type = EIO_READAHEAD;
1046	req->fh = newSVsv (fh);	1170	req->sv1 = newSVsv (fh);
1047	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1171	req->int1 = fd;
1048	req->offset = offset;	1172	req->offs = offset;
1049	req->length = length;	1173	req->size = length;
1050		1174
1051	REQ_SEND;	1175	REQ_SEND;
1052	}	1176	}
1053		1177
1054	void	1178	void
1055	aio_stat (fh_or_path,callback=&PL_sv_undef)	1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1056	SV * fh_or_path
1057	SV * callback
1058	ALIAS:	1180	ALIAS:
1059	aio_stat = REQ_STAT	1181	aio_stat = EIO_STAT
1060	aio_lstat = REQ_LSTAT	1182	aio_lstat = EIO_LSTAT
		1183	aio_statvfs = EIO_STATVFS
1061	PPCODE:	1184	PPCODE:
1062	{	1185	{
1063	dREQ;	1186	dREQ;
1064		1187
1065	New (0, req->statdata, 1, Stat_t);	1188	req->sv1 = newSVsv (fh_or_path);
1066	if (!req->statdata)
1067	{
1068	req_free (req);
1069	croak ("out of memory during aio_req->statdata allocation");
1070	}
1071		1189
1072	if (SvPOK (fh_or_path))	1190	if (SvPOK (req->sv1))
1073	{	1191	{
1074	req->type = ix;	1192	req->type = ix;
1075	req->data = newSVsv (fh_or_path);
1076	req->dataptr = SvPVbyte_nolen (req->data);	1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
1077	}	1194	}
1078	else	1195	else
1079	{	1196	{
1080	req->type = REQ_FSTAT;	1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1081	req->fh = newSVsv (fh_or_path);
1082	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1083	}	1199	}
1084		1200
1085	REQ_SEND;	1201	REQ_SEND;
1086	}	1202	}
1087		1203
		1204	UV
		1205	major (UV dev)
		1206	ALIAS:
		1207	minor = 1
		1208	CODE:
		1209	RETVAL = ix ? major (dev) : minor (dev);
		1210	OUTPUT:
		1211	RETVAL
		1212
		1213	UV
		1214	makedev (UV maj, UV min)
		1215	CODE:
		1216	RETVAL = makedev (maj, min);
		1217	OUTPUT:
		1218	RETVAL
		1219
1088	void	1220	void
		1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1222	PPCODE:
		1223	{
		1224	dREQ;
		1225
		1226	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1227	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1228	req->sv1 = newSVsv (fh_or_path);
		1229
		1230	if (SvPOK (req->sv1))
		1231	{
		1232	req->type = EIO_UTIME;
		1233	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1234	}
		1235	else
		1236	{
		1237	req->type = EIO_FUTIME;
		1238	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1239	}
		1240
		1241	REQ_SEND;
		1242	}
		1243
		1244	void
		1245	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1246	PPCODE:
		1247	{
		1248	dREQ;
		1249
		1250	req->sv1 = newSVsv (fh_or_path);
		1251	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1252
		1253	if (SvPOK (req->sv1))
		1254	{
		1255	req->type = EIO_TRUNCATE;
		1256	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1257	}
		1258	else
		1259	{
		1260	req->type = EIO_FTRUNCATE;
		1261	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1262	}
		1263
		1264	REQ_SEND;
		1265	}
		1266
		1267	void
		1268	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1269	ALIAS:
		1270	aio_chmod = EIO_CHMOD
		1271	aio_mkdir = EIO_MKDIR
		1272	PPCODE:
		1273	{
		1274	dREQ;
		1275
		1276	req->int2 = mode;
		1277	req->sv1 = newSVsv (fh_or_path);
		1278
		1279	if (SvPOK (req->sv1))
		1280	{
		1281	req->type = ix;
		1282	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1283	}
		1284	else
		1285	{
		1286	req->type = EIO_FCHMOD;
		1287	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1288	}
		1289
		1290	REQ_SEND;
		1291	}
		1292
		1293	void
		1294	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1295	PPCODE:
		1296	{
		1297	dREQ;
		1298
		1299	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1300	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1301	req->sv1 = newSVsv (fh_or_path);
		1302
		1303	if (SvPOK (req->sv1))
		1304	{
		1305	req->type = EIO_CHOWN;
		1306	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1307	}
		1308	else
		1309	{
		1310	req->type = EIO_FCHOWN;
		1311	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1312	}
		1313
		1314	REQ_SEND;
		1315	}
		1316
		1317	void
		1318	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1319	PPCODE:
		1320	{
		1321	dREQ;
		1322
		1323	req->type = EIO_READDIR;
		1324	req->sv1 = newSVsv (pathname);
		1325	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1326	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1327
		1328	if (flags & EIO_READDIR_DENTS)
		1329	req->int1 |= EIO_READDIR_CUSTOM2;
		1330
		1331	REQ_SEND;
		1332	}
		1333
		1334	void
1089	aio_unlink (pathname,callback=&PL_sv_undef)	1335	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1090	SV * pathname
1091	SV * callback
1092	ALIAS:	1336	ALIAS:
1093	aio_unlink = REQ_UNLINK	1337	aio_unlink = EIO_UNLINK
1094	aio_rmdir = REQ_RMDIR	1338	aio_rmdir = EIO_RMDIR
1095	aio_readdir = REQ_READDIR	1339	aio_readdir = EIO_READDIR
1096	PPCODE:	1340	PPCODE:
1097	{	1341	{
1098	dREQ;	1342	dREQ;
1099		1343
1100	req->type = ix;	1344	req->type = ix;
1101	req->data = newSVsv (pathname);	1345	req->sv1 = newSVsv (pathname);
1102	req->dataptr = SvPVbyte_nolen (req->data);	1346	req->ptr1 = SvPVbyte_nolen (req->sv1);
1103		1347
1104	REQ_SEND;	1348	REQ_SEND;
1105	}	1349	}
1106		1350
1107	void	1351	void
1108	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1352	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1109	SV * oldpath
1110	SV * newpath
1111	SV * callback
1112	ALIAS:	1353	ALIAS:
1113	aio_link = REQ_LINK	1354	aio_link = EIO_LINK
1114	aio_symlink = REQ_SYMLINK	1355	aio_symlink = EIO_SYMLINK
1115	aio_rename = REQ_RENAME	1356	aio_rename = EIO_RENAME
1116	PPCODE:	1357	PPCODE:
1117	{	1358	{
1118	dREQ;	1359	dREQ;
1119		1360
1120	req->type = ix;	1361	req->type = ix;
1121	req->fh = newSVsv (oldpath);	1362	req->sv1 = newSVsv (oldpath);
1122	req->data2ptr = SvPVbyte_nolen (req->fh);	1363	req->ptr1 = SvPVbyte_nolen (req->sv1);
1123	req->data = newSVsv (newpath);	1364	req->sv2 = newSVsv (newpath);
1124	req->dataptr = SvPVbyte_nolen (req->data);	1365	req->ptr2 = SvPVbyte_nolen (req->sv2);
1125		1366
1126	REQ_SEND;	1367	REQ_SEND;
1127	}	1368	}
1128		1369
1129	void	1370	void
1130	aio_sleep (delay,callback=&PL_sv_undef)	1371	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1131	double delay
1132	SV * callback
1133	PPCODE:	1372	PPCODE:
1134	{	1373	{
1135	dREQ;	1374	dREQ;
1136		1375
1137	req->type = REQ_SLEEP;	1376	req->type = EIO_MKNOD;
1138	req->fd = delay < 0. ? 0 : delay;	1377	req->sv1 = newSVsv (pathname);
1139	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);	1378	req->ptr1 = SvPVbyte_nolen (req->sv1);
1140		1379	req->int2 = (mode_t)mode;
		1380	req->offs = dev;
		1381
1141	REQ_SEND;	1382	REQ_SEND;
1142	}	1383	}
1143		1384
1144	void	1385	void
1145	aio_group (callback=&PL_sv_undef)	1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1146	SV * callback	1387	ALIAS:
1147	PROTOTYPE: ;&	1388	aio_mtouch = EIO_MTOUCH
		1389	aio_msync = EIO_MSYNC
1148	PPCODE:	1390	PPCODE:
1149	{	1391	{
		1392	STRLEN svlen;
		1393	char *svptr = SvPVbyte (data, svlen);
		1394	UV len = SvUV (length);
		1395
		1396	if (offset < 0)
		1397	offset += svlen;
		1398
		1399	if (offset < 0 || offset > svlen)
		1400	croak ("offset outside of scalar");
		1401
		1402	if (!SvOK (length) || len + offset > svlen)
		1403	len = svlen - offset;
		1404
		1405	{
		1406	dREQ;
		1407
		1408	req->type = ix;
		1409	req->sv2 = SvREFCNT_inc (data);
		1410	req->ptr2 = (char *)svptr + offset;
		1411	req->size = len;
		1412	req->int1 = flags;
		1413
		1414	REQ_SEND;
		1415	}
		1416	}
		1417
		1418	void
		1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1420	PPCODE:
		1421	{
		1422	STRLEN svlen;
		1423	char *svptr = SvPVbyte (data, svlen);
		1424	UV len = SvUV (length);
		1425
		1426	if (offset < 0)
		1427	offset += svlen;
		1428
		1429	if (offset < 0 || offset > svlen)
		1430	croak ("offset outside of scalar");
		1431
		1432	if (!SvOK (length) || len + offset > svlen)
		1433	len = svlen - offset;
		1434
		1435	{
		1436	dREQ;
		1437
		1438	req->type = EIO_MLOCK;
		1439	req->sv2 = SvREFCNT_inc (data);
		1440	req->ptr2 = (char *)svptr + offset;
		1441	req->size = len;
		1442
		1443	REQ_SEND;
		1444	}
		1445	}
		1446
		1447	void
		1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MLOCKALL;
		1454	req->int1 = flags;
		1455
		1456	REQ_SEND;
		1457	}
		1458
		1459	void
		1460	aio_busy (double delay, SV *callback=&PL_sv_undef)
		1461	PPCODE:
		1462	{
1150	dREQ;	1463	dREQ;
		1464
		1465	req->type = EIO_BUSY;
		1466	req->nv1 = delay < 0. ? 0. : delay;
		1467
		1468	REQ_SEND;
		1469	}
		1470
		1471	void
		1472	aio_group (SV *callback=&PL_sv_undef)
		1473	PPCODE:
		1474	{
		1475	dREQ;
		1476
1151	req->type = REQ_GROUP;	1477	req->type = EIO_GROUP;
1152	req->grp_next = req;
1153	req->grp_prev = req;
1154		1478
1155	req_send (req);	1479	req_submit (req);
1156	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1480	XPUSHs (req_sv (req, aio_grp_stash));
1157	}	1481	}
		1482
		1483	void
		1484	aio_nop (SV *callback=&PL_sv_undef)
		1485	ALIAS:
		1486	aio_nop = EIO_NOP
		1487	aio_sync = EIO_SYNC
		1488	PPCODE:
		1489	{
		1490	dREQ;
		1491
		1492	req->type = ix;
		1493
		1494	REQ_SEND;
		1495	}
		1496
		1497	int
		1498	aioreq_pri (int pri = 0)
		1499	CODE:
		1500	RETVAL = next_pri;
		1501	if (items > 0)
		1502	{
		1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
		1504	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
		1505	next_pri = pri;
		1506	}
		1507	OUTPUT:
		1508	RETVAL
		1509
		1510	void
		1511	aioreq_nice (int nice = 0)
		1512	CODE:
		1513	nice = next_pri - nice;
		1514	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
		1515	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
		1516	next_pri = nice;
1158		1517
1159	void	1518	void
1160	flush ()	1519	flush ()
1161	PROTOTYPE:
1162	CODE:	1520	CODE:
1163	while (nreqs)	1521	while (eio_nreqs ())
1164	{	1522	{
1165	poll_wait ();	1523	poll_wait ();
1166	poll_cb ();	1524	poll_cb ();
1167	}	1525	}
1168		1526
1169	void	1527	int
1170	poll()	1528	poll ()
1171	PROTOTYPE:
1172	CODE:	1529	CODE:
1173	if (nreqs)
1174	{
1175	poll_wait ();	1530	poll_wait ();
1176	poll_cb ();	1531	RETVAL = poll_cb ();
1177	}
1178
1179	int
1180	poll_fileno()
1181	PROTOTYPE:
1182	CODE:
1183	RETVAL = respipe [0];
1184	OUTPUT:	1532	OUTPUT:
1185	RETVAL	1533	RETVAL
1186		1534
1187	int	1535	int
		1536	poll_fileno ()
		1537	CODE:
		1538	RETVAL = s_epipe_fd (&respipe);
		1539	OUTPUT:
		1540	RETVAL
		1541
		1542	int
1188	poll_cb(...)	1543	poll_cb (...)
1189	PROTOTYPE:	1544	PROTOTYPE:
1190	CODE:	1545	CODE:
1191	RETVAL = poll_cb ();	1546	RETVAL = poll_cb ();
1192	OUTPUT:	1547	OUTPUT:
1193	RETVAL	1548	RETVAL
1194		1549
1195	void	1550	void
1196	poll_wait()	1551	poll_wait ()
1197	PROTOTYPE:
1198	CODE:	1552	CODE:
1199	if (nreqs)
1200	poll_wait ();	1553	poll_wait ();
1201		1554
1202	int	1555	int
1203	nreqs()	1556	nreqs ()
1204	PROTOTYPE:
1205	CODE:	1557	CODE:
1206	RETVAL = nreqs;	1558	RETVAL = eio_nreqs ();
1207	OUTPUT:	1559	OUTPUT:
1208	RETVAL	1560	RETVAL
1209		1561
		1562	int
		1563	nready ()
		1564	CODE:
		1565	RETVAL = eio_nready ();
		1566	OUTPUT:
		1567	RETVAL
		1568
		1569	int
		1570	npending ()
		1571	CODE:
		1572	RETVAL = eio_npending ();
		1573	OUTPUT:
		1574	RETVAL
		1575
		1576	int
		1577	nthreads ()
		1578	CODE:
		1579	RETVAL = eio_nthreads ();
		1580	OUTPUT:
		1581	RETVAL
		1582
		1583	int
		1584	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1585	CODE:
		1586	RETVAL = posix_fadvise (fh, offset, length, advice);
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	ssize_t
		1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1592	CODE:
		1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1594	OUTPUT:
		1595	RETVAL
		1596
		1597	void
		1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1599	PPCODE:
		1600	sv_unmagic (scalar, MMAP_MAGIC);
		1601	{
		1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1604	if (addr == (void *)-1)
		1605	XSRETURN_NO;
		1606
		1607	sv_force_normal (scalar);
		1608
		1609	/* we store the length in mg_obj, as namlen is I32 :/ */
		1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1611	->mg_obj = (SV *)length;
		1612
		1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1614
		1615	if (!(prot & PROT_WRITE))
		1616	SvREADONLY_on (scalar);
		1617
		1618	if (SvLEN (scalar))
		1619	Safefree (SvPVX (scalar));
		1620
		1621	SvPVX (scalar) = (char *)addr;
		1622	SvCUR_set (scalar, length);
		1623	SvLEN_set (scalar, 0);
		1624	SvPOK_only (scalar);
		1625
		1626	XSRETURN_YES;
		1627	}
		1628
		1629	void
		1630	munmap (SV *scalar)
		1631	CODE:
		1632	sv_unmagic (scalar, MMAP_MAGIC);
		1633
		1634	int
		1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1636	ALIAS:
		1637	mprotect = 1
		1638	CODE:
		1639	{
		1640	STRLEN svlen;
		1641	void *addr = SvPVbyte (scalar, svlen);
		1642	size_t len = SvUV (length);
		1643
		1644	if (offset < 0)
		1645	offset += svlen;
		1646
		1647	if (offset < 0 || offset > svlen)
		1648	croak ("offset outside of scalar");
		1649
		1650	if (!SvOK (length) || len + offset > svlen)
		1651	len = svlen - offset;
		1652
		1653	addr = (void *)(((intptr_t)addr) + offset);
		1654	eio_page_align (&addr, &len);
		1655
		1656	switch (ix)
		1657	{
		1658	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1659	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1660	}
		1661	}
		1662	OUTPUT:
		1663	RETVAL
		1664
		1665	int
		1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	STRLEN svlen;
		1670	void *addr = SvPVbyte (scalar, svlen);
		1671	size_t len = SvUV (length);
		1672
		1673	if (offset < 0)
		1674	offset += svlen;
		1675
		1676	if (offset < 0 || offset > svlen)
		1677	croak ("offset outside of scalar");
		1678
		1679	if (!SvOK (length) || len + offset > svlen)
		1680	len = svlen - offset;
		1681
		1682	addr = (void *)(((intptr_t)addr) + offset);
		1683	eio_page_align (&addr, &len);
		1684	#if _POSIX_MEMLOCK_RANGE
		1685	RETVAL = munlock (addr, len);
		1686	#else
		1687	RETVAL = ((errno = ENOSYS), -1);
		1688	#endif
		1689	}
		1690	OUTPUT:
		1691	RETVAL
		1692
		1693	int
		1694	munlockall ()
		1695	CODE:
		1696	#if _POSIX_MEMLOCK
		1697	munlockall ();
		1698	#else
		1699	RETVAL = -1;
		1700	errno = ENOSYS;
		1701	#endif
		1702	OUTPUT:
		1703	RETVAL
		1704
		1705	void _on_next_submit (SV *cb)
		1706	CODE:
		1707	SvREFCNT_dec (on_next_submit);
		1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1709
		1710	PROTOTYPES: DISABLE
		1711
1210	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1712	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1211		1713
1212	void	1714	void
1213	cancel (aio_req_ornot req)	1715	cancel (aio_req_ornot req)
1214	PROTOTYPE:
1215	CODE:	1716	CODE:
1216	req_cancel (req);	1717	eio_cancel (req);
		1718
		1719	void
		1720	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1721	PPCODE:
		1722	{
		1723	if (GIMME_V != G_VOID)
		1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1725
		1726	if (items > 1)
		1727	{
		1728	SV *cb_cv =get_cb (callback);
		1729
		1730	SvREFCNT_dec (req->callback);
		1731	req->callback = SvREFCNT_inc (cb_cv);
		1732	}
		1733	}
1217		1734
1218	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1735	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1219		1736
1220	void	1737	void
1221	add (aio_req grp, ...)	1738	add (aio_req grp, ...)
1222	PROTOTYPE: $;@
1223	PPCODE:	1739	PPCODE:
1224	{	1740	{
1225	int i;	1741	int i;
		1742
		1743	if (grp->int1 == 2)
		1744	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1226		1745
1227	for (i = 1; i < items; ++i )	1746	for (i = 1; i < items; ++i )
1228	{	1747	{
1229	aio_req req = SvAIO_REQ (ST (i));	1748	aio_req req;
1230
1231	req->grp_prev = grp;
1232	req->grp_next = grp->grp_next;
1233	grp->grp_next->grp_prev = req;
1234	grp->grp_next = req;
1235
1236	req->grp = grp;
1237		1749
1238	if (GIMME_V != G_VOID)	1750	if (GIMME_V != G_VOID)
1239	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1751	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1752
		1753	req = SvAIO_REQ (ST (i));
		1754
		1755	if (req)
		1756	eio_grp_add (grp, req);
1240	}	1757	}
1241	}	1758	}
1242		1759
		1760	void
		1761	cancel_subs (aio_req_ornot req)
		1762	CODE:
		1763	req_cancel_subs (req);
		1764
		1765	void
		1766	result (aio_req grp, ...)
		1767	CODE:
		1768	{
		1769	int i;
		1770	AV *av;
		1771
		1772	grp->errorno = errno;
		1773
		1774	av = newAV ();
		1775	av_extend (av, items - 1);
		1776
		1777	for (i = 1; i < items; ++i )
		1778	av_push (av, newSVsv (ST (i)));
		1779
		1780	SvREFCNT_dec (grp->sv1);
		1781	grp->sv1 = (SV *)av;
		1782	}
		1783
		1784	void
		1785	errno (aio_req grp, int errorno = errno)
		1786	CODE:
		1787	grp->errorno = errorno;
		1788
		1789	void
		1790	limit (aio_req grp, int limit)
		1791	CODE:
		1792	eio_grp_limit (grp, limit);
		1793
		1794	void
		1795	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1796	CODE:
		1797	{
		1798	SvREFCNT_dec (grp->sv2);
		1799	grp->sv2 = newSVsv (callback);
		1800	grp->feed = aio_grp_feed;
		1801
		1802	if (grp->int2 <= 0)
		1803	grp->int2 = 2;
		1804
		1805	eio_grp_limit (grp, grp->int2);
		1806	}
		1807

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines