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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
		32	/* perl namespace pollution */
		33	#undef VERSION
		34
		35	/* perl stupidly overrides readdir and maybe others */
		36	/* with thread-unsafe versions, imagine that :( */
		37	#undef readdir
		38	#undef opendir
		39	#undef closedir
		40
18	#ifdef _WIN32	41	#ifdef _WIN32
19		42
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	43	// perl overrides all those nice libc functions
		44
		45	#undef malloc
		46	#undef free
25	# undef open	47	#undef open
26	# undef read	48	#undef read
27	# undef write	49	#undef write
28	# undef send	50	#undef send
29	# undef recv	51	#undef recv
30	# undef stat	52	#undef stat
		53	#undef lstat
31	# undef fstat	54	#undef fstat
32	# define lstat stat
33	# undef truncate	55	#undef truncate
34	# undef ftruncate	56	#undef ftruncate
35	# undef open	57	#undef open
		58	#undef link
36	# undef close	59	#undef close
37	# undef unlink	60	#undef unlink
		61	#undef mkdir
38	# undef rmdir	62	#undef rmdir
39	# undef rename	63	#undef rename
40	# undef lseek	64	#undef lseek
		65	#undef opendir
		66	#undef readdir
		67	#undef closedir
		68	#undef chmod
		69	#undef fchmod
		70	#undef dup
		71	#undef dup2
		72	#undef abort
		73	#undef pipe
41		74
42	# define chown(a,b,c) (errno = ENOSYS, -1)	75	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		77
56	#else	78	#else
57		79
58	# include <sys/time.h>	80	#include <sys/time.h>
59	# include <sys/select.h>	81	#include <sys/select.h>
60	# include <unistd.h>	82	#include <unistd.h>
61	# include <utime.h>	83	#include <utime.h>
62	# include <signal.h>	84	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		85
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	86	#define EIO_STRUCT_STAT Stat_t
68		87
69	/* use NV for 32 bit perls as it allows larger offsets */	88	#endif
70	#if IVSIZE >= 8	89
71	# define SvVAL64 SvIV	90	/*****************************************************************************/
		91
		92	#if __GNUC__ >= 3
		93	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	94	#else
73	# define SvVAL64 SvNV	95	# define expect(expr,value) (expr)
74	#endif	96	#endif
75		97
76	static HV *stash;	98	#define expect_false(expr) expect ((expr) != 0, 0)
		99	#define expect_true(expr) expect ((expr) != 0, 1)
		100
		101	/*****************************************************************************/
		102
77	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
		104	typedef int aio_rfd; /* read file desriptor */
		105	typedef int aio_wfd; /* write file descriptor */
78		106
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		108
82	#define EIO_COMMON \	109	#define EIO_REQ_MEMBERS \
83	SV *callback; \	110	SV *callback; \
84	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
85	STRLEN stroffset; \	113	STRLEN stroffset; \
86	SV *self	114	SV *self;
87		115
		116	#define EIO_NO_WRAPPERS 1
		117
		118	#include "libeio/config.h"
88	#include "libeio/eio.h"	119	#include "libeio/eio.h"
89		120
90	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		130	#endif
		131
		132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		134	#endif
		135
		136	#ifndef MAP_ANONYMOUS
		137	# ifdef MAP_ANON
		138	# define MAP_ANONYMOUS MAP_ANON
		139	# else
		140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		141	# endif
		142	#endif
		143
		144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
		149	#endif
		150	#ifndef major
		151	# define major(dev) ((dev) >> 8)
		152	#endif
		153	#ifndef minor
		154	# define minor(dev) ((dev) & 0xff)
		155	#endif
		156
		157	#ifndef PAGESIZE
		158	# define PAGESIZE sysconf (_SC_PAGESIZE)
		159	#endif
		160
		161	/*****************************************************************************/
		162
		163	static void
		164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	int count = req->int3;
		170
		171	/* heuristic: first try with 64 extents if we don't know how many, */
		172	/* as most files have (hopefully) fewer than this many extents */
		173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		174	if (count < 0)
		175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		176
		177	for (;;)
		178	{
		179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		180	errno = ENOMEM;
		181	if (!fiemap)
		182	return;
		183
		184	req->ptr1 = fiemap;
		185	req->flags |= EIO_FLAG_PTR1_FREE;
		186
		187	fiemap->fm_start = req->offs;
		188	fiemap->fm_length = req->size;
		189	fiemap->fm_flags = req->int2;
		190	fiemap->fm_extent_count = count;
		191
		192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		193	return;
		194
		195	if (req->int3 >= 0)
		196	break; /* when not autosizing we are done */
		197
		198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		199	break; /* autosizing successful, we are done */
		200
		201	fiemap->fm_flags = req->int2;
		202	fiemap->fm_extent_count = 0;
		203
		204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		205	return;
		206
		207	count = fiemap->fm_mapped_extents;
		208
		209	free (fiemap);
		210	}
		211
		212	req->result = 0;
		213
		214	#else
		215	errno = ENOSYS;
		216	#endif
		217	}
		218
		219	/*****************************************************************************/
96		220
97	enum {	221	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	223	};
100		224
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	225	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	226	typedef eio_req *aio_req_ornot;
		227	typedef eio_wd aio_wd;
105		228
		229	static SV *on_next_submit;
		230	static int next_pri = EIO_PRI_DEFAULT;
106	static int max_outstanding = 0;	231	static int max_outstanding;
107		232
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	233	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		234
112	static void req_destroy (aio_req req);	235	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	236	static void req_cancel (aio_req req);
114		237
115	static void want_poll (void)	238	static void
		239	want_poll (void)
116	{	240	{
117	/* write a dummy byte to the pipe so fh becomes ready */	241	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	242	s_epipe_signal (&respipe);
119	}	243	}
120		244
121	static void done_poll (void)	245	static void
		246	done_poll (void)
122	{	247	{
123	/* read any signals sent by the worker threads */	248	/* read any signals sent by the worker threads */
124	char buf [4];	249	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	250	}
128		251
129	/* must be called at most once */	252	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	253	static SV *
		254	req_sv (aio_req req, HV *stash)
131	{	255	{
132	if (!req->self)	256	if (!req->self)
133	{	257	{
134	req->self = (SV *)newHV ();	258	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	259	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	260	}
137		261
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	262	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	263	}
140		264
141	static aio_req SvAIO_REQ (SV *sv)	265	static SV *
		266	newSVaio_wd (aio_wd wd)
		267	{
		268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		269	}
		270
		271	static aio_req
		272	SvAIO_REQ (SV *sv)
142	{	273	{
143	MAGIC *mg;	274	MAGIC *mg;
144		275
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	276	if (!SvROK (sv)
		277	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		278	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		279	&& SvSTASH (SvRV (sv)) != aio_req_stash
		280	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	281	croak ("object of class IO::AIO::REQ expected");
147		282
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	283	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		284
150	return mg ? (aio_req)mg->mg_ptr : 0;	285	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	286	}
152		287
		288	static aio_wd
		289	SvAIO_WD (SV *sv)
		290	{
		291	if (!SvROK (sv)
		292	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		295
		296	return (aio_wd)(long)SvIVX (SvRV (sv));
		297	}
		298
		299	static void
153	static void aio_grp_feed (aio_req grp)	300	aio_grp_feed (aio_req grp)
154	{	301	{
155	if (grp->sv2 && SvOK (grp->sv2))	302	if (grp->sv2 && SvOK (grp->sv2))
156	{	303	{
157	dSP;	304	dSP;
158		305
159	ENTER;	306	ENTER;
160	SAVETMPS;	307	SAVETMPS;
161	PUSHMARK (SP);	308	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	309	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	310	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	311	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	312	SPAGAIN;
166	FREETMPS;	313	FREETMPS;
167	LEAVE;	314	LEAVE;
168	}	315	}
169	}	316	}
170		317
		318	static void
		319	req_submit (eio_req *req)
		320	{
		321	eio_submit (req);
		322
		323	if (expect_false (on_next_submit))
		324	{
		325	dSP;
		326	SV *cb = sv_2mortal (on_next_submit);
		327
		328	on_next_submit = 0;
		329
		330	PUSHMARK (SP);
		331	PUTBACK;
		332	call_sv (cb, G_DISCARD | G_EVAL);
		333	}
		334	}
		335
		336	static int
171	static int req_invoke (eio_req *req)	337	req_invoke (eio_req *req)
172	{	338	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
177		341
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	342	if (!EIO_CANCELLED (req) && req->callback)
179	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
180	ENTER;	348	ENTER;
181	SAVETMPS;	349	SAVETMPS;
182	PUSHMARK (SP);	350	PUSHMARK (SP);
183	EXTEND (SP, 1);	351	EXTEND (SP, 1);
184		352
		353	/* do not recreate the result IV from scratch each time */
		354	if (expect_true (sv_result_cache))
		355	{
		356	sv_result = sv_result_cache; sv_result_cache = 0;
		357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
		359	}
		360	else
		361	{
		362	sv_result = newSViv (req->result);
		363	SvREADONLY_on (sv_result);
		364	}
		365
185	switch (req->type)	366	switch (req->type)
186	{	367	{
		368	case EIO_WD_OPEN:
		369	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		370	break;
		371
187	case EIO_READDIR:	372	case EIO_READDIR:
188	{	373	{
189	SV *rv = &PL_sv_undef;	374	SV *rv = &PL_sv_undef;
190		375
191	if (req->result >= 0)	376	if (req->result >= 0)
192	{	377	{
193	int i;	378	int i;
194	char *buf = req->ptr2;	379	char *names = (char *)req->ptr2;
		380	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	381	AV *av = newAV ();
196		382
197	av_extend (av, req->result - 1);	383	av_extend (av, req->result - 1);
198		384
199	for (i = 0; i < req->result; ++i)	385	for (i = 0; i < req->result; ++i)
200	{	386	{
201	SV *sv = newSVpv (buf, 0);	387	if (req->int1 & EIO_READDIR_DENTS)
		388	{
		389	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		390
		391	if (req->int1 & EIO_READDIR_CUSTOM2)
		392	{
		393	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		394	AV *avent = newAV ();
		395
		396	av_extend (avent, 2);
		397
		398	if (!sv_type [ent->type])
		399	{
		400	sv_type [ent->type] = newSViv (ent->type);
		401	SvREADONLY_on (sv_type [ent->type]);
		402	}
		403
		404	av_store (avent, 0, namesv);
		405	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		406	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		407
		408	av_store (av, i, newRV_noinc ((SV *)avent));
		409	}
		410	else
203	av_store (av, i, sv);	411	av_store (av, i, namesv);
		412
		413	++ent;
		414	}
		415	else
		416	{
		417	SV *name = newSVpv (names, 0);
		418	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	419	names += SvCUR (name) + 1;
		420	}
205	}	421	}
206		422
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	423	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	424	}
209		425
210	PUSHs (rv);	426	PUSHs (rv);
		427
		428	if (req->int1 & EIO_READDIR_CUSTOM1)
		429	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
211	}	430	}
212	break;	431	break;
213		432
214	case EIO_OPEN:	433	case EIO_OPEN:
215	{	434	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	440	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	441	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	442	char sym [64];
224	int symlen;	443	int symlen;
225		444
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	445	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	446	gv_init (gv, aio_stash, sym, symlen, 0);
228		447
229	symlen = snprintf (	448	symlen = snprintf (
230	sym,	449	sym,
231	sizeof (sym),	450	sizeof (sym),
232	"%s&=%d",	451	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	452	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	453	(int)req->result
235	);	454	);
236		455
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	456	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	457	fh = (SV *)gv;
239	}	458	}
240		459
241	PUSHs (fh);	460	PUSHs (fh);
242	}	461	}
		462	break;
		463
		464	case EIO_STATVFS:
		465	case EIO_FSTATVFS:
		466	{
		467	SV *rv = &PL_sv_undef;
		468
		469	#ifndef _WIN32
		470	if (req->result >= 0)
		471	{
		472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		473	HV *hv = newHV ();
		474
		475	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		476
		477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		478	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		479	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		480	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		481	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		482	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		483	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		484	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		487	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		488	}
		489	#endif
		490
		491	PUSHs (rv);
		492	}
		493
243	break;	494	break;
244		495
245	case EIO_GROUP:	496	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	497	req->int1 = 2; /* mark group as finished */
247		498
…		…
259	case EIO_NOP:	510	case EIO_NOP:
260	case EIO_BUSY:	511	case EIO_BUSY:
261	break;	512	break;
262		513
263	case EIO_READLINK:	514	case EIO_READLINK:
		515	case EIO_REALPATH:
264	if (req->result > 0)	516	if (req->result > 0)
265	{	517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	518	break;
271		519
272	case EIO_STAT:	520	case EIO_STAT:
273	case EIO_LSTAT:	521	case EIO_LSTAT:
274	case EIO_FSTAT:	522	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		524
276	PL_laststatval = req->result;	525	if (!(PL_laststatval = req->result))
		526	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	527	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	528
		529	PUSHs (sv_result);
279	break;	530	break;
280		531
		532	case EIO_SEEK:
		533	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		534	break;
		535
281	case EIO_READ:	536	case EIO_READ:
		537	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	538	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	539	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	540	SvPOK_only (req->sv2);
		541	SvSETMAGIC (req->sv2);
		542	PUSHs (sv_result);
		543	}
285	break;	544	break;
286		545
287	case EIO_DUP2:	546	case EIO_CUSTOM:
		547	if (req->feed == fiemap)
		548	{
		549	#if HAVE_FIEMAP
		550	if (!req->result)
		551	{
		552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		553
		554	if (fiemap->fm_extent_count)
		555	{
		556	AV *av = newAV ();
		557	int i;
		558
		559	while (fiemap->fm_mapped_extents)
		560	{
		561	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		562	AV *ext_av = newAV ();
		563
		564	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		565	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		566	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		567	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		568
		569	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		570	}
		571
		572	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		573	}
		574	else
		575	{
		576	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		577	PUSHs (sv_result);
		578	}
		579	}
		580	#endif
		581	}
		582	else
		583	PUSHs (sv_result);
		584	break;
		585
		586	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	587	if (req->result > 0)
289	req->result = 0;	588	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	589	/* FALLTHROUGH */
291		590
292	default:	591	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
294	break;	593	break;
295	}	594	}
296		595
297	errno = req->errorno;	596	errno = req->errorno;
298		597
299	PUTBACK;	598	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	599	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	600	SPAGAIN;
302		601
		602	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		603	SvREFCNT_dec (sv_result);
		604	else
		605	sv_result_cache = sv_result;
		606
303	FREETMPS;	607	FREETMPS;
304	LEAVE;	608	LEAVE;
305		609
306	PUTBACK;	610	PUTBACK;
307	}	611	}
308		612
309	return !!SvTRUE (ERRSV);	613	return !!SvTRUE (ERRSV);
310	}	614	}
311		615
		616	static void
312	static void req_destroy (aio_req req)	617	req_destroy (aio_req req)
313	{	618	{
314	if (req->self)	619	if (req->self)
315	{	620	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	621	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	622	SvREFCNT_dec (req->self);
318	}	623	}
319		624
320	SvREFCNT_dec (req->sv1);	625	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	626	SvREFCNT_dec (req->sv2);
		627	SvREFCNT_dec (req->sv3);
		628	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	629	SvREFCNT_dec (req->callback);
323		630
324	Safefree (req);	631	free (req);
325	}	632	}
326		633
		634	static void
327	static void req_cancel_subs (aio_req grp)	635	req_cancel_subs (aio_req grp)
328	{	636	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	637	if (grp->type != EIO_GROUP)
332	return;	638	return;
333		639
334	SvREFCNT_dec (grp->sv2);	640	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	641	grp->sv2 = 0;
336		642
337	eio_grp_cancel (grp);	643	eio_grp_cancel (grp);
338	}	644	}
339		645
340	#ifdef USE_SOCKETS_AS_HANDLES	646	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	647	create_respipe (void)
342	#else	648	{
343	# define TO_SOCKET(x) (x)	649	if (s_epipe_renew (&respipe))
344	#endif	650	croak ("IO::AIO: unable to initialize result pipe");
		651	}
345		652
346	static void	653	static void
347	create_respipe (void)	654	poll_wait (void)
348	{	655	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))
358	#endif
359	croak ("unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}
383
384	static void poll_wait (void)
385	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	656	while (eio_nreqs ())
389	{	657	{
390	int size;	658	int size;
391		659
392	X_LOCK (reslock);	660	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	662	X_UNLOCK (reslock);
395		663
396	if (size)	664	if (size)
397	return;	665	return;
398		666
399	maybe_start_thread ();	667	etp_maybe_start_thread ();
400		668
401	FD_ZERO (&rfd);	669	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	670	}
406	}	671	}
407		672
408	static int poll_cb (void)	673	static int
		674	poll_cb (void)
409	{	675	{
410	int res;	676	for (;;)
411
412	do
413	{	677	{
414	res = eio_poll ();	678	int res = eio_poll ();
415		679
416	if (res > 0)	680	if (res > 0)
417	croak (0);	681	croak (0);
		682
		683	if (!max_outstanding || max_outstanding > eio_nreqs ())
		684	return res;
		685
		686	poll_wait ();
418	}	687	}
419	while (max_outstanding && max_outstanding <= eio_nreqs ());
420
421	return res;
422	}	688	}
423		689
424	static void atfork_child (void)	690	static void ecb_cold
		691	reinit (void)
425	{	692	{
426	create_respipe ();	693	create_respipe ();
		694
		695	if (eio_init (want_poll, done_poll) < 0)
		696	croak ("IO::AIO: unable to initialise eio library");
		697	}
		698
		699	/*****************************************************************************/
		700
		701	#if !_POSIX_MAPPED_FILES
		702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		703	# define munmap(addr,length) (errno = ENOSYS, -1)
		704	#endif
		705
		706	#if !_POSIX_MEMORY_PROTECTION
		707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		708	# define PROT_NONE 0
		709	# define PROT_WRITE 0
		710	# define MAP_PRIVATE 0
		711	# define MAP_SHARED 0
		712	# define MAP_FIXED 0
		713	#endif
		714
		715	#define MMAP_MAGIC PERL_MAGIC_ext
		716
		717	static int ecb_cold
		718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		719	{
		720	int old_errno = errno;
		721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		722	errno = old_errno;
		723
		724	mg->mg_obj = 0; /* just in case */
		725
		726	SvREADONLY_off (sv);
		727
		728	if (SvPVX (sv) != mg->mg_ptr)
		729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		730
		731	SvCUR_set (sv, 0);
		732	SvPVX (sv) = 0;
		733	SvOK_off (sv);
		734
		735	return 0;
		736	}
		737
		738	static MGVTBL mmap_vtbl = {
		739	0, 0, 0, 0, mmap_free
		740	};
		741
		742	/*****************************************************************************/
		743
		744	static SV *
		745	get_cb (SV *cb_sv)
		746	{
		747	SvGETMAGIC (cb_sv);
		748	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		749	}
		750
		751	static aio_req ecb_noinline
		752	dreq (SV *callback)
		753	{
		754	SV *cb_cv;
		755	aio_req req;
		756	int req_pri = next_pri;
		757	next_pri = EIO_PRI_DEFAULT;
		758
		759	cb_cv = get_cb (callback);
		760
		761	req = calloc (sizeof (*req), 1);
		762	if (!req)
		763	croak ("out of memory during eio_req allocation");
		764
		765	req->callback = SvREFCNT_inc (cb_cv);
		766	req->pri = req_pri;
		767
		768	return req;
427	}	769	}
428		770
429	#define dREQ \	771	#define dREQ \
430	aio_req req; \	772	aio_req req = dreq (callback); \
431	int req_pri = next_pri; \
432	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
433	\
434	if (SvOK (callback) && !SvROK (callback)) \
435	croak ("callback must be undef or of reference type"); \
436	\
437	Newz (0, req, 1, eio_req); \
438	if (!req) \
439	croak ("out of memory during eio_req allocation"); \
440	\
441	req->callback = newSVsv (callback); \
442	req->pri = req_pri
443		773
444	#define REQ_SEND \	774	#define REQ_SEND \
		775	PUTBACK; \
445	eio_submit (req); \	776	req_submit (req); \
		777	SPAGAIN; \
446	\	778	\
447	if (GIMME_V != G_VOID) \	779	if (GIMME_V != G_VOID) \
448	XPUSHs (req_sv (req, AIO_REQ_KLASS));	780	XPUSHs (req_sv (req, aio_req_stash));
449		781
		782	ecb_inline void
		783	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		784	{
		785	if (expect_false (SvROK (path)))
		786	{
		787	SV *rv = SvRV (path);
		788	SV *wdob;
		789
		790	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		791	{
		792	path = AvARRAY (rv)[1];
		793	wdob = AvARRAY (rv)[0];
		794
		795	if (SvOK (wdob))
		796	{
		797	*wd = SvAIO_WD (wdob);
		798	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		799	}
		800	else
		801	*wd = EIO_INVALID_WD;
		802	}
		803	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		804	{
		805	*wd = (aio_wd)(long)SvIVX (rv);
		806	*wdsv = SvREFCNT_inc_NN (rv);
		807	*ptr = ".";
		808	return; /* path set to "." */
		809	}
		810	else
		811	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		812	}
		813
		814	*pathsv = newSVsv (path);
		815	*ptr = SvPVbyte_nolen (*pathsv);
		816	}
		817
		818	static void ecb_noinline
		819	req_set_path1 (aio_req req, SV *path)
		820	{
		821	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		822	}
		823
		824	static void ecb_noinline
		825	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		826	{
		827	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		828
		829	switch (SvTYPE (rv))
		830	{
		831	case SVt_PVIO:
		832	case SVt_PVLV:
		833	case SVt_PVGV:
		834	req->type = type_fh;
		835	req->sv1 = newSVsv (fh_or_path);
		836	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		837	break;
		838
		839	default:
		840	req->type = type_path;
		841	req_set_path1 (req, fh_or_path);
		842	break;
		843	}
		844	}
		845
		846	XS(boot_IO__AIO) ecb_cold;
		847
450	MODULE = IO::AIO PACKAGE = IO::AIO	848	MODULE = IO::AIO PACKAGE = IO::AIO
451		849
452	PROTOTYPES: ENABLE	850	PROTOTYPES: ENABLE
453		851
454	BOOT:	852	BOOT:
455	{	853	{
		854	static const struct {
		855	const char *name;
		856	IV iv;
		857	} *civ, const_iv[] = {
		858	# define const_niv(name, value) { # name, (IV) value },
		859	# define const_iv(name) { # name, (IV) name },
		860	# define const_eio(name) { # name, (IV) EIO_ ## name },
		861
		862	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		863
		864	const_iv (ENOSYS)
		865	const_iv (EXDEV)
		866	const_iv (EBADR)
		867
		868	const_iv (O_RDONLY)
		869	const_iv (O_WRONLY)
		870	const_iv (O_RDWR)
		871	const_iv (O_CREAT)
		872	const_iv (O_TRUNC)
		873	const_iv (O_EXCL)
		874	const_iv (O_APPEND)
		875
		876	const_iv (O_ASYNC)
		877	const_iv (O_DIRECT)
		878	const_iv (O_NOATIME)
		879
		880	const_iv (O_CLOEXEC)
		881	const_iv (O_NOCTTY)
		882	const_iv (O_NOFOLLOW)
		883	const_iv (O_NONBLOCK)
		884	const_iv (O_EXEC)
		885	const_iv (O_SEARCH)
		886	const_iv (O_DIRECTORY)
		887	const_iv (O_DSYNC)
		888	const_iv (O_RSYNC)
		889	const_iv (O_SYNC)
		890	const_iv (O_TTY_INIT)
		891
		892	const_iv (S_IFIFO)
		893	const_iv (S_IFCHR)
		894	const_iv (S_IFBLK)
		895	const_iv (S_IFLNK)
		896	const_iv (S_IFREG)
		897	const_iv (S_IFDIR)
		898	const_iv (S_IFWHT)
		899	const_iv (S_IFSOCK)
		900	const_iv (S_IFMT)
		901
		902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		908
		909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		914
		915	const_iv (ST_RDONLY)
		916	const_iv (ST_NOSUID)
		917	const_iv (ST_NODEV)
		918	const_iv (ST_NOEXEC)
		919	const_iv (ST_SYNCHRONOUS)
		920	const_iv (ST_MANDLOCK)
		921	const_iv (ST_WRITE)
		922	const_iv (ST_APPEND)
		923	const_iv (ST_IMMUTABLE)
		924	const_iv (ST_NOATIME)
		925	const_iv (ST_NODIRATIME)
		926	const_iv (ST_RELATIME)
		927
		928	const_iv (PROT_NONE)
		929	const_iv (PROT_EXEC)
		930	const_iv (PROT_READ)
		931	const_iv (PROT_WRITE)
		932
		933	/*const_iv (MAP_FIXED)*/
		934	const_iv (MAP_PRIVATE)
		935	const_iv (MAP_SHARED)
		936	const_iv (MAP_ANONYMOUS)
		937
		938	/* linuxish */
		939	const_iv (MAP_HUGETLB)
		940	const_iv (MAP_LOCKED)
		941	const_iv (MAP_NORESERVE)
		942	const_iv (MAP_POPULATE)
		943	const_iv (MAP_NONBLOCK)
		944
		945	const_iv (FIEMAP_FLAG_SYNC)
		946	const_iv (FIEMAP_FLAG_XATTR)
		947	const_iv (FIEMAP_FLAGS_COMPAT)
		948	const_iv (FIEMAP_EXTENT_LAST)
		949	const_iv (FIEMAP_EXTENT_UNKNOWN)
		950	const_iv (FIEMAP_EXTENT_DELALLOC)
		951	const_iv (FIEMAP_EXTENT_ENCODED)
		952	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		953	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		954	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		955	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		956	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		957	const_iv (FIEMAP_EXTENT_MERGED)
		958	const_iv (FIEMAP_EXTENT_SHARED)
		959
		960	const_eio (SEEK_SET)
		961	const_eio (SEEK_CUR)
		962	const_eio (SEEK_END)
		963
		964	const_eio (MCL_FUTURE)
		965	const_eio (MCL_CURRENT)
		966
		967	const_eio (MS_ASYNC)
		968	const_eio (MS_INVALIDATE)
		969	const_eio (MS_SYNC)
		970
		971	const_eio (MT_MODIFY)
		972
		973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		974	const_eio (SYNC_FILE_RANGE_WRITE)
		975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		976
		977	const_eio (FALLOC_FL_KEEP_SIZE)
		978
		979	const_eio (READDIR_DENTS)
		980	const_eio (READDIR_DIRS_FIRST)
		981	const_eio (READDIR_STAT_ORDER)
		982	const_eio (READDIR_FOUND_UNKNOWN)
		983
		984	const_eio (DT_UNKNOWN)
		985	const_eio (DT_FIFO)
		986	const_eio (DT_CHR)
		987	const_eio (DT_DIR)
		988	const_eio (DT_BLK)
		989	const_eio (DT_REG)
		990	const_eio (DT_LNK)
		991	const_eio (DT_SOCK)
		992	const_eio (DT_WHT)
		993	};
		994
456	stash = gv_stashpv ("IO::AIO", 1);	995	aio_stash = gv_stashpv ("IO::AIO" , 1);
		996	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		997	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		998	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
457		999
458	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1000	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
459	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1001	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
460	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
461	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
462	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
463	#ifdef _WIN32
464	X_MUTEX_CHECK (wrklock);
465	X_MUTEX_CHECK (reslock);
466	X_MUTEX_CHECK (reqlock);
467	X_MUTEX_CHECK (reqwait);
468	X_MUTEX_CHECK (preadwritelock);
469	X_MUTEX_CHECK (readdirlock);
470		1002
471	X_COND_CHECK (reqwait);	1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
472	#else
473	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474	#endif
475		1004
476	create_respipe ();	1005	reinit ();
477
478	if (eio_init (want_poll, done_poll) < 0)
479	croak ("IO::AIO: unable to initialise eio library");
480
481	/* atfork child called in fifo order, so before eio's handler */
482	X_THREAD_ATFORK (0, 0, atfork_child);
483	}	1006	}
484		1007
485	void	1008	void
		1009	reinit ()
		1010	PROTOTYPE:
		1011
		1012	void
486	max_poll_reqs (int nreqs)	1013	max_poll_reqs (unsigned int nreqs)
487	PROTOTYPE: $	1014	PROTOTYPE: $
488	CODE:	1015	CODE:
489	eio_set_max_poll_reqs (nreqs);	1016	eio_set_max_poll_reqs (nreqs);
490		1017
491	void	1018	void
…		…
493	PROTOTYPE: $	1020	PROTOTYPE: $
494	CODE:	1021	CODE:
495	eio_set_max_poll_time (nseconds);	1022	eio_set_max_poll_time (nseconds);
496		1023
497	void	1024	void
498	min_parallel (int nthreads)	1025	min_parallel (unsigned int nthreads)
499	PROTOTYPE: $	1026	PROTOTYPE: $
500	CODE:	1027	CODE:
501	eio_set_min_parallel (nthreads);	1028	eio_set_min_parallel (nthreads);
502		1029
503	void	1030	void
504	max_parallel (int nthreads)	1031	max_parallel (unsigned int nthreads)
505	PROTOTYPE: $	1032	PROTOTYPE: $
506	CODE:	1033	CODE:
507	eio_set_max_parallel (nthreads);	1034	eio_set_max_parallel (nthreads);
508		1035
509	void	1036	void
510	max_idle (int nthreads)	1037	max_idle (unsigned int nthreads)
511	PROTOTYPE: $	1038	PROTOTYPE: $
512	CODE:	1039	CODE:
513	eio_set_max_idle (nthreads);	1040	eio_set_max_idle (nthreads);
514		1041
515	void	1042	void
		1043	idle_timeout (unsigned int seconds)
		1044	PROTOTYPE: $
		1045	CODE:
		1046	eio_set_idle_timeout (seconds);
		1047
		1048	void
516	max_outstanding (int maxreqs)	1049	max_outstanding (unsigned int maxreqs)
517	PROTOTYPE: $	1050	PROTOTYPE: $
518	CODE:	1051	CODE:
519	max_outstanding = maxreqs;	1052	max_outstanding = maxreqs;
520		1053
521	void	1054	void
		1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1056	PPCODE:
		1057	{
		1058	dREQ;
		1059
		1060	req->type = EIO_WD_OPEN;
		1061	req_set_path1 (req, pathname);
		1062
		1063	REQ_SEND;
		1064	}
		1065
		1066	void
522	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
523	PROTOTYPE: $$$;$
524	PPCODE:	1068	PPCODE:
525	{	1069	{
526	dREQ;	1070	dREQ;
527		1071
528	req->type = EIO_OPEN;	1072	req->type = EIO_OPEN;
529	req->sv1 = newSVsv (pathname);	1073	req_set_path1 (req, pathname);
530	req->ptr1 = SvPVbyte_nolen (req->sv1);
531	req->int1 = flags;	1074	req->int1 = flags;
532	req->int2 = mode;	1075	req->int2 = mode;
533		1076
534	REQ_SEND;	1077	REQ_SEND;
535	}	1078	}
536		1079
537	void	1080	void
538	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $;$
540	ALIAS:	1082	ALIAS:
541	aio_fsync = EIO_FSYNC	1083	aio_fsync = EIO_FSYNC
542	aio_fdatasync = EIO_FDATASYNC	1084	aio_fdatasync = EIO_FDATASYNC
		1085	aio_syncfs = EIO_SYNCFS
543	PPCODE:	1086	PPCODE:
544	{	1087	{
		1088	int fd = s_fileno_croak (fh, 0);
545	dREQ;	1089	dREQ;
546		1090
547	req->type = ix;	1091	req->type = ix;
548	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
549	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1093	req->int1 = fd;
550		1094
551	REQ_SEND (req);	1095	REQ_SEND;
		1096	}
		1097
		1098	void
		1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1100	PPCODE:
		1101	{
		1102	int fd = s_fileno_croak (fh, 0);
		1103	dREQ;
		1104
		1105	req->type = EIO_SYNC_FILE_RANGE;
		1106	req->sv1 = newSVsv (fh);
		1107	req->int1 = fd;
		1108	req->offs = offset;
		1109	req->size = nbytes;
		1110	req->int2 = flags;
		1111
		1112	REQ_SEND;
		1113	}
		1114
		1115	void
		1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1117	PPCODE:
		1118	{
		1119	int fd = s_fileno_croak (fh, 0);
		1120	dREQ;
		1121
		1122	req->type = EIO_FALLOCATE;
		1123	req->sv1 = newSVsv (fh);
		1124	req->int1 = fd;
		1125	req->int2 = mode;
		1126	req->offs = offset;
		1127	req->size = len;
		1128
		1129	REQ_SEND;
552	}	1130	}
553		1131
554	void	1132	void
555	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	PPCODE:	1134	PPCODE:
558	{	1135	{
559	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1137	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1138	dREQ;
561		1139
562	if (close_pipe < 0)	1140	if (expect_false (close_fd < 0))
563	{	1141	{
564	int pipefd [2];	1142	int pipefd [2];
565		1143
		1144	if (
		1145	#ifdef _WIN32
		1146	_pipe (pipefd, 1, _O_BINARY) < 0
		1147	#else
566	if (pipe (pipefd) < 0	1148	pipe (pipefd) < 0
567	|| close (pipefd [1]) < 0
568	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1149	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1150	#endif
		1151	|| close (pipefd [1]) < 0
		1152	)
569	abort (); /*D*/	1153	abort (); /*D*/
570		1154
571	close_pipe = pipefd [0];	1155	close_fd = pipefd [0];
572	}	1156	}
573		1157
574	req->type = EIO_DUP2;	1158	req->type = EIO_DUP2;
575	req->int1 = close_pipe;	1159	req->int1 = close_fd;
576	req->sv2 = newSVsv (fh);	1160	req->sv2 = newSVsv (fh);
577	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1161	req->int2 = fd;
578		1162
579	REQ_SEND (req);	1163	REQ_SEND;
		1164	}
		1165
		1166	void
		1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1168	PPCODE:
		1169	{
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		1173	req->type = EIO_SEEK;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->offs = SvVAL64 (offset);
		1177	req->int2 = whence;
		1178
		1179	REQ_SEND;
580	}	1180	}
581		1181
582	void	1182	void
583	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
584	ALIAS:	1184	ALIAS:
585	aio_read = EIO_READ	1185	aio_read = EIO_READ
586	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
587	PROTOTYPE: $$$$$;$
588	PPCODE:	1187	PPCODE:
589	{	1188	{
590	STRLEN svlen;	1189	STRLEN svlen;
		1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
591	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
592	UV len = SvUV (length);	1192	UV len = SvUV (length);
593
594	SvUPGRADE (data, SVt_PV);
595	SvPOK_on (data);
596		1193
597	if (dataoffset < 0)	1194	if (dataoffset < 0)
598	dataoffset += svlen;	1195	dataoffset += svlen;
599		1196
600	if (dataoffset < 0 || dataoffset > svlen)	1197	if (dataoffset < 0 || dataoffset > svlen)
…		…
606	if (!SvOK (length) || len + dataoffset > svlen)	1203	if (!SvOK (length) || len + dataoffset > svlen)
607	len = svlen - dataoffset;	1204	len = svlen - dataoffset;
608	}	1205	}
609	else	1206	else
610	{	1207	{
611	/* read: grow scalar as necessary */	1208	/* read: check type and grow scalar as necessary */
		1209	SvUPGRADE (data, SVt_PV);
612	svptr = SvGROW (data, len + dataoffset + 1);	1210	svptr = SvGROW (data, len + dataoffset + 1);
613	}	1211	}
614		1212
615	if (len < 0)
616	croak ("length must not be negative");
617
618	{	1213	{
619	dREQ;	1214	dREQ;
620		1215
621	req->type = ix;	1216	req->type = ix;
622	req->sv1 = newSVsv (fh);	1217	req->sv1 = newSVsv (fh);
623	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1218	req->int1 = fd;
624	: IoOFP (sv_2io (fh)));
625	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1219	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
626	req->size = len;	1220	req->size = len;
627	req->sv2 = SvREFCNT_inc (data);	1221	req->sv2 = SvREFCNT_inc (data);
628	req->ptr2 = (char *)svptr + dataoffset;	1222	req->ptr2 = (char *)svptr + dataoffset;
629	req->stroffset = dataoffset;	1223	req->stroffset = dataoffset;
…		…
637	REQ_SEND;	1231	REQ_SEND;
638	}	1232	}
639	}	1233	}
640		1234
641	void	1235	void
642	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
643	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
644	PPCODE:	1240	PPCODE:
645	{	1241	{
646	SV *data;
647	dREQ;	1242	dREQ;
648		1243
649	data = newSV (NAME_MAX);
650	SvPOK_on (data);
651
652	req->type = EIO_READLINK;	1244	req->type = ix;
653	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->sv2 = data;
656	req->ptr2 = SvPVbyte_nolen (data);
657		1246
658	REQ_SEND;	1247	REQ_SEND;
659	}	1248	}
660		1249
661	void	1250	void
662	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$$$;$
664	PPCODE:	1252	PPCODE:
665	{	1253	{
		1254	int ifd = s_fileno_croak (in_fh , 0);
		1255	int ofd = s_fileno_croak (out_fh, 1);
666	dREQ;	1256	dREQ;
667		1257
668	req->type = EIO_SENDFILE;	1258	req->type = EIO_SENDFILE;
669	req->sv1 = newSVsv (out_fh);	1259	req->sv1 = newSVsv (out_fh);
670	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1260	req->int1 = ofd;
671	req->sv2 = newSVsv (in_fh);	1261	req->sv2 = newSVsv (in_fh);
672	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1262	req->int2 = ifd;
673	req->offs = SvVAL64 (in_offset);	1263	req->offs = in_offset;
674	req->size = length;	1264	req->size = length;
675		1265
676	REQ_SEND;	1266	REQ_SEND;
677	}	1267	}
678		1268
679	void	1269	void
680	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$;$
682	PPCODE:	1271	PPCODE:
683	{	1272	{
		1273	int fd = s_fileno_croak (fh, 0);
684	dREQ;	1274	dREQ;
685		1275
686	req->type = EIO_READAHEAD;	1276	req->type = EIO_READAHEAD;
687	req->sv1 = newSVsv (fh);	1277	req->sv1 = newSVsv (fh);
688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1278	req->int1 = fd;
689	req->offs = SvVAL64 (offset);	1279	req->offs = offset;
690	req->size = length;	1280	req->size = length;
691		1281
692	REQ_SEND;	1282	REQ_SEND;
693	}	1283	}
694		1284
695	void	1285	void
696	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
697	ALIAS:	1287	ALIAS:
698	aio_stat = EIO_STAT	1288	aio_stat = EIO_STAT
699	aio_lstat = EIO_LSTAT	1289	aio_lstat = EIO_LSTAT
		1290	aio_statvfs = EIO_STATVFS
700	PPCODE:	1291	PPCODE:
701	{	1292	{
702	dREQ;	1293	dREQ;
703		1294
704	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
705	if (!req->ptr2)
706	{
707	req_destroy (req);
708	croak ("out of memory during aio_stat statdata allocation");
709	}
710
711	req->flags |= EIO_FLAG_PTR2_FREE;
712	req->sv1 = newSVsv (fh_or_path);
713
714	if (SvPOK (fh_or_path))
715	{
716	req->type = ix;
717	req->ptr1 = SvPVbyte_nolen (req->sv1);
718	}
719	else
720	{
721	req->type = EIO_FSTAT;
722	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
723	}
724		1296
725	REQ_SEND;	1297	REQ_SEND;
726	}	1298	}
		1299
		1300	UV
		1301	major (UV dev)
		1302	ALIAS:
		1303	minor = 1
		1304	CODE:
		1305	RETVAL = ix ? major (dev) : minor (dev);
		1306	OUTPUT:
		1307	RETVAL
		1308
		1309	UV
		1310	makedev (UV maj, UV min)
		1311	CODE:
		1312	RETVAL = makedev (maj, min);
		1313	OUTPUT:
		1314	RETVAL
727		1315
728	void	1316	void
729	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730	PPCODE:	1318	PPCODE:
731	{	1319	{
732	dREQ;	1320	dREQ;
733		1321
734	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
737
738	if (SvPOK (fh_or_path))
739	{
740	req->type = EIO_UTIME;
741	req->ptr1 = SvPVbyte_nolen (req->sv1);
742	}
743	else
744	{
745	req->type = EIO_FUTIME;
746	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747	}
748		1325
749	REQ_SEND;	1326	REQ_SEND;
750	}	1327	}
751		1328
752	void	1329	void
753	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754	PPCODE:	1331	PPCODE:
755	{	1332	{
756	dREQ;	1333	dREQ;
757		1334
758	req->sv1 = newSVsv (fh_or_path);
759	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
761	if (SvPOK (fh_or_path))
762	{
763	req->type = EIO_TRUNCATE;
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765	}
766	else
767	{
768	req->type = EIO_FTRUNCATE;
769	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770	}
771		1337
772	REQ_SEND;	1338	REQ_SEND;
773	}	1339	}
774		1340
775	void	1341	void
776	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
777	ALIAS:
778	aio_chmod = EIO_CHMOD
779	aio_fchmod = EIO_FCHMOD
780	aio_mkdir = EIO_MKDIR
781	PPCODE:	1343	PPCODE:
782	{	1344	{
783	dREQ;	1345	dREQ;
784		1346
785	req->type = ix;
786	req->int2 = mode;	1347	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (ix == EIO_FCHMOD)
790	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791	else
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793		1349
794	REQ_SEND;	1350	REQ_SEND;
795	}	1351	}
796		1352
797	void	1353	void
…		…
800	{	1356	{
801	dREQ;	1357	dREQ;
802		1358
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1362
807	if (SvPOK (fh_or_path))	1363	REQ_SEND;
808	{	1364	}
		1365
		1366	void
		1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1368	PPCODE:
		1369	{
		1370	dREQ;
		1371
		1372	req->type = EIO_READDIR;
		1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1374
		1375	if (flags & EIO_READDIR_DENTS)
		1376	req->int1 |= EIO_READDIR_CUSTOM2;
		1377
		1378	req_set_path1 (req, pathname);
		1379
		1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
809	req->type = EIO_CHOWN;	1389	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1390	req->int2 = mode;
811	}	1391	req_set_path1 (req, pathname);
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1392
818	REQ_SEND;	1393	REQ_SEND;
819	}	1394	}
820		1395
821	void	1396	void
…		…
827	PPCODE:	1402	PPCODE:
828	{	1403	{
829	dREQ;	1404	dREQ;
830		1405
831	req->type = ix;	1406	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1408
835	REQ_SEND;	1409	REQ_SEND;
836	}	1410	}
837		1411
838	void	1412	void
…		…
841	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
844	PPCODE:	1418	PPCODE:
845	{	1419	{
		1420	eio_wd wd2 = 0;
846	dREQ;	1421	dREQ;
847		1422
848	req->type = ix;	1423	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1427
854	REQ_SEND;	1428	REQ_SEND;
855	}	1429	}
856		1430
857	void	1431	void
…		…
859	PPCODE:	1433	PPCODE:
860	{	1434	{
861	dREQ;	1435	dREQ;
862		1436
863	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
867	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
868		1441
869	REQ_SEND;	1442	REQ_SEND;
870	}	1443	}
871		1444
872	void	1445	void
		1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1447	ALIAS:
		1448	aio_mtouch = EIO_MTOUCH
		1449	aio_msync = EIO_MSYNC
		1450	PPCODE:
		1451	{
		1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
		1454	UV len = SvUV (length);
		1455
		1456	if (offset < 0)
		1457	offset += svlen;
		1458
		1459	if (offset < 0 || offset > svlen)
		1460	croak ("offset outside of scalar");
		1461
		1462	if (!SvOK (length) || len + offset > svlen)
		1463	len = svlen - offset;
		1464
		1465	{
		1466	dREQ;
		1467
		1468	req->type = ix;
		1469	req->sv2 = SvREFCNT_inc (data);
		1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
		1472	req->int1 = flags;
		1473
		1474	REQ_SEND;
		1475	}
		1476	}
		1477
		1478	void
		1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1480	PPCODE:
		1481	{
		1482	STRLEN svlen;
		1483	char *svptr = SvPVbyte (data, svlen);
		1484	UV len = SvUV (length);
		1485
		1486	if (offset < 0)
		1487	offset += svlen;
		1488
		1489	if (offset < 0 || offset > svlen)
		1490	croak ("offset outside of scalar");
		1491
		1492	if (!SvOK (length) || len + offset > svlen)
		1493	len = svlen - offset;
		1494
		1495	{
		1496	dREQ;
		1497
		1498	req->type = EIO_MLOCK;
		1499	req->sv2 = SvREFCNT_inc (data);
		1500	req->ptr2 = (char *)svptr + offset;
		1501	req->size = len;
		1502
		1503	REQ_SEND;
		1504	}
		1505	}
		1506
		1507	void
		1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1509	PPCODE:
		1510	{
		1511	dREQ;
		1512
		1513	req->type = EIO_MLOCKALL;
		1514	req->int1 = flags;
		1515
		1516	REQ_SEND;
		1517	}
		1518
		1519	void
		1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1521	PPCODE:
		1522	{
		1523	int fd = s_fileno_croak (fh, 0);
		1524	dREQ;
		1525
		1526	req->type = EIO_CUSTOM;
		1527	req->sv1 = newSVsv (fh);
		1528	req->int1 = fd;
		1529
		1530	req->feed = fiemap;
		1531	#if HAVE_FIEMAP
		1532	/* keep our fingers crossed that the next two types are 64 bit */
		1533	req->offs = start;
		1534	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1535	req->int2 = flags;
		1536	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1537	#endif
		1538
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1543	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1544	PPCODE:
875	{	1545	{
876	dREQ;	1546	dREQ;
877		1547
…		…
881	REQ_SEND;	1551	REQ_SEND;
882	}	1552	}
883		1553
884	void	1554	void
885	aio_group (SV *callback=&PL_sv_undef)	1555	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1556	PPCODE:
888	{	1557	{
889	dREQ;	1558	dREQ;
890		1559
891	req->type = EIO_GROUP;	1560	req->type = EIO_GROUP;
892		1561
893	eio_submit (req);	1562	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1563	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1564	}
896		1565
897	void	1566	void
898	aio_nop (SV *callback=&PL_sv_undef)	1567	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1568	ALIAS:
…		…
908	REQ_SEND;	1577	REQ_SEND;
909	}	1578	}
910		1579
911	int	1580	int
912	aioreq_pri (int pri = 0)	1581	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1582	CODE:
915	RETVAL = next_pri - EIO_PRI_BIAS;	1583	RETVAL = next_pri;
916	if (items > 0)	1584	if (items > 0)
917	{	1585	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1587	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920	next_pri = pri + EIO_PRI_BIAS;	1588	next_pri = pri;
921	}	1589	}
922	OUTPUT:	1590	OUTPUT:
923	RETVAL	1591	RETVAL
924		1592
925	void	1593	void
926	aioreq_nice (int nice = 0)	1594	aioreq_nice (int nice = 0)
927	CODE:	1595	CODE:
928	nice = next_pri - nice;	1596	nice = next_pri - nice;
929	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1597	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1598	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice + EIO_PRI_BIAS;	1599	next_pri = nice;
932		1600
933	void	1601	void
934	flush ()	1602	flush ()
935	PROTOTYPE:
936	CODE:	1603	CODE:
937	while (eio_nreqs ())	1604	while (eio_nreqs ())
938	{	1605	{
939	poll_wait ();	1606	poll_wait ();
940	poll_cb ();	1607	poll_cb ();
941	}	1608	}
942		1609
943	int	1610	int
944	poll()	1611	poll ()
945	PROTOTYPE:
946	CODE:	1612	CODE:
947	poll_wait ();	1613	poll_wait ();
948	RETVAL = poll_cb ();	1614	RETVAL = poll_cb ();
949	OUTPUT:	1615	OUTPUT:
950	RETVAL	1616	RETVAL
951		1617
952	int	1618	int
953	poll_fileno()	1619	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1620	CODE:
956	RETVAL = respipe [0];	1621	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1622	OUTPUT:
958	RETVAL	1623	RETVAL
959		1624
960	int	1625	int
961	poll_cb(...)	1626	poll_cb (...)
962	PROTOTYPE:	1627	PROTOTYPE:
963	CODE:	1628	CODE:
964	RETVAL = poll_cb ();	1629	RETVAL = poll_cb ();
965	OUTPUT:	1630	OUTPUT:
966	RETVAL	1631	RETVAL
967		1632
968	void	1633	void
969	poll_wait()	1634	poll_wait ()
970	PROTOTYPE:
971	CODE:	1635	CODE:
972	poll_wait ();	1636	poll_wait ();
973		1637
974	int	1638	int
975	nreqs()	1639	nreqs ()
976	PROTOTYPE:
977	CODE:	1640	CODE:
978	RETVAL = eio_nreqs ();	1641	RETVAL = eio_nreqs ();
979	OUTPUT:	1642	OUTPUT:
980	RETVAL	1643	RETVAL
981		1644
982	int	1645	int
983	nready()	1646	nready ()
984	PROTOTYPE:
985	CODE:	1647	CODE:
986	RETVAL = eio_nready ();	1648	RETVAL = eio_nready ();
987	OUTPUT:	1649	OUTPUT:
988	RETVAL	1650	RETVAL
989		1651
990	int	1652	int
991	npending()	1653	npending ()
992	PROTOTYPE:
993	CODE:	1654	CODE:
994	RETVAL = eio_npending ();	1655	RETVAL = eio_npending ();
995	OUTPUT:	1656	OUTPUT:
996	RETVAL	1657	RETVAL
997		1658
998	int	1659	int
999	nthreads()	1660	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1661	CODE:
1002	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1662	RETVAL = eio_nthreads ();
1003	RETVAL = started;
1004	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005	OUTPUT:	1663	OUTPUT:
1006	RETVAL	1664	RETVAL
1007		1665
		1666	int
		1667	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1668	CODE:
		1669	RETVAL = posix_fadvise (fh, offset, length, advice);
		1670	OUTPUT:
		1671	RETVAL
		1672
		1673	IV
		1674	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1675	CODE:
		1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1677	OUTPUT:
		1678	RETVAL
		1679
		1680	void
		1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1682	PPCODE:
		1683	sv_unmagic (scalar, MMAP_MAGIC);
		1684	{
		1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1687	if (addr == (void *)-1)
		1688	XSRETURN_NO;
		1689
		1690	sv_force_normal (scalar);
		1691
		1692	/* we store the length in mg_obj, as namlen is I32 :/ */
		1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1694	->mg_obj = (SV *)length;
		1695
		1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1697
		1698	if (!(prot & PROT_WRITE))
		1699	SvREADONLY_on (scalar);
		1700
		1701	if (SvLEN (scalar))
		1702	Safefree (SvPVX (scalar));
		1703
		1704	SvPVX (scalar) = (char *)addr;
		1705	SvCUR_set (scalar, length);
		1706	SvLEN_set (scalar, 0);
		1707	SvPOK_only (scalar);
		1708
		1709	XSRETURN_YES;
		1710	}
		1711
		1712	void
		1713	munmap (SV *scalar)
		1714	CODE:
		1715	sv_unmagic (scalar, MMAP_MAGIC);
		1716
		1717	int
		1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1719	ALIAS:
		1720	mprotect = 1
		1721	CODE:
		1722	{
		1723	STRLEN svlen;
		1724	void *addr = SvPVbyte (scalar, svlen);
		1725	size_t len = SvUV (length);
		1726
		1727	if (offset < 0)
		1728	offset += svlen;
		1729
		1730	if (offset < 0 || offset > svlen)
		1731	croak ("offset outside of scalar");
		1732
		1733	if (!SvOK (length) || len + offset > svlen)
		1734	len = svlen - offset;
		1735
		1736	addr = (void *)(((intptr_t)addr) + offset);
		1737	eio_page_align (&addr, &len);
		1738
		1739	switch (ix)
		1740	{
		1741	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1742	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1743	}
		1744	}
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int
		1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1750	CODE:
		1751	{
		1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
		1755
		1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
		1763	len = svlen - offset;
		1764
		1765	addr = (void *)(((intptr_t)addr) + offset);
		1766	eio_page_align (&addr, &len);
		1767	#if _POSIX_MEMLOCK_RANGE
		1768	RETVAL = munlock (addr, len);
		1769	#else
		1770	RETVAL = ((errno = ENOSYS), -1);
		1771	#endif
		1772	}
		1773	OUTPUT:
		1774	RETVAL
		1775
		1776	int
		1777	munlockall ()
		1778	CODE:
		1779	#if _POSIX_MEMLOCK
		1780	munlockall ();
		1781	#else
		1782	RETVAL = -1;
		1783	errno = ENOSYS;
		1784	#endif
		1785	OUTPUT:
		1786	RETVAL
		1787
		1788	void _on_next_submit (SV *cb)
		1789	CODE:
		1790	SvREFCNT_dec (on_next_submit);
		1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1792
1008	PROTOTYPES: DISABLE	1793	PROTOTYPES: DISABLE
		1794
		1795	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1796
		1797	BOOT:
		1798	{
		1799	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1800	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1801	}
		1802
		1803	void
		1804	DESTROY (SV *self)
		1805	CODE:
		1806	{
		1807	aio_wd wd = SvAIO_WD (self);
		1808	#if HAVE_AT
		1809	{
		1810	SV *callback = &PL_sv_undef;
		1811	dREQ; /* clobbers next_pri :/ */
		1812	next_pri = req->pri; /* restore next_pri */
		1813	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1814	req->type = EIO_WD_CLOSE;
		1815	req->wd = wd;
		1816	REQ_SEND;
		1817	}
		1818	#else
		1819	eio_wd_close_sync (wd);
		1820	#endif
		1821	}
1009		1822
1010	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1823	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011		1824
1012	void	1825	void
1013	cancel (aio_req_ornot req)	1826	cancel (aio_req_ornot req)
1014	CODE:	1827	CODE:
1015	eio_cancel (req);	1828	eio_cancel (req);
1016		1829
1017	void	1830	void
1018	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1831	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1019	CODE:	1832	PPCODE:
		1833	{
		1834	if (GIMME_V != G_VOID)
		1835	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1836
		1837	if (items > 1)
		1838	{
		1839	SV *cb_cv =get_cb (callback);
		1840
1020	SvREFCNT_dec (req->callback);	1841	SvREFCNT_dec (req->callback);
1021	req->callback = newSVsv (callback);	1842	req->callback = SvREFCNT_inc (cb_cv);
		1843	}
		1844	}
1022		1845
1023	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1846	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024		1847
1025	void	1848	void
1026	add (aio_req grp, ...)	1849	add (aio_req grp, ...)
…		…
1058	AV *av;	1881	AV *av;
1059		1882
1060	grp->errorno = errno;	1883	grp->errorno = errno;
1061		1884
1062	av = newAV ();	1885	av = newAV ();
		1886	av_extend (av, items - 1);
1063		1887
1064	for (i = 1; i < items; ++i )	1888	for (i = 1; i < items; ++i )
1065	av_push (av, newSVsv (ST (i)));	1889	av_push (av, newSVsv (ST (i)));
1066		1890
1067	SvREFCNT_dec (grp->sv1);	1891	SvREFCNT_dec (grp->sv1);
…		…
1081	void	1905	void
1082	feed (aio_req grp, SV *callback=&PL_sv_undef)	1906	feed (aio_req grp, SV *callback=&PL_sv_undef)
1083	CODE:	1907	CODE:
1084	{	1908	{
1085	SvREFCNT_dec (grp->sv2);	1909	SvREFCNT_dec (grp->sv2);
1086	grp->sv2 = newSVsv (callback);	1910	grp->sv2 = newSVsv (callback);
		1911	grp->feed = aio_grp_feed;
1087		1912
1088	if (grp->int2 <= 0)	1913	if (grp->int2 <= 0)
1089	grp->int2 = 2;	1914	grp->int2 = 2;
1090		1915
1091	eio_grp_limit (grp, grp->int2);	1916	eio_grp_limit (grp, grp->int2);

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