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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 1.213 by root, Tue Apr 10 05:01:33 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/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
		33	/* perl namespace pollution */
		34	#undef VERSION
		35
		36	/* perl stupidly overrides readdir and maybe others */
		37	/* with thread-unsafe versions, imagine that :( */
		38	#undef readdir
		39	#undef opendir
		40	#undef closedir
		41
18	#ifdef _WIN32	42	#ifdef _WIN32
19		43
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
25	# undef open	48	#undef open
26	# undef read	49	#undef read
27	# undef write	50	#undef write
28	# undef send	51	#undef send
29	# undef recv	52	#undef recv
30	# undef stat	53	#undef stat
		54	#undef lstat
31	# undef fstat	55	#undef fstat
32	# define lstat stat
33	# undef truncate	56	#undef truncate
34	# undef ftruncate	57	#undef ftruncate
35	# undef open	58	#undef open
		59	#undef link
36	# undef close	60	#undef close
37	# undef unlink	61	#undef unlink
		62	#undef mkdir
38	# undef rmdir	63	#undef rmdir
39	# undef rename	64	#undef rename
40	# undef lseek	65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
41		75
42	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#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		78
56	#else	79	#else
57		80
58	# include <sys/time.h>	81	#include <sys/time.h>
59	# include <sys/select.h>	82	#include <sys/select.h>
60	# include <unistd.h>	83	#include <unistd.h>
61	# include <utime.h>	84	#include <utime.h>
62	# include <signal.h>	85	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		86
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
68		88
69	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
70	#if IVSIZE >= 8	90
71	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	95	#else
73	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
74	#endif	97	#endif
75		98
76	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
77	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
78		107
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		109
82	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
83	SV *callback; \	111	SV *callback; \
84	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
85	STRLEN stroffset; \	114	STRLEN stroffset; \
86	SV *self	115	SV *self;
87		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
88	#include "libeio/eio.h"	120	#include "libeio/eio.h"
89		121
90	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	123	#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);	124	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 64 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
96		221
97	enum {	222	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	224	};
100		225
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
105		229
		230	static SV *on_next_submit;
		231	static int next_pri = EIO_PRI_DEFAULT;
106	static int max_outstanding = 0;	232	static int max_outstanding;
107		233
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	234	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		235
112	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
114		238
115	static void want_poll (void)	239	static void
		240	want_poll (void)
116	{	241	{
117	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	243	s_epipe_signal (&respipe);
119	}	244	}
120		245
121	static void done_poll (void)	246	static void
		247	done_poll (void)
122	{	248	{
123	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
124	char buf [4];	250	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	251	}
128		252
129	/* must be called at most once */	253	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	254	static SV *
		255	req_sv (aio_req req, HV *stash)
131	{	256	{
132	if (!req->self)	257	if (!req->self)
133	{	258	{
134	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	261	}
137		262
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	264	}
140		265
141	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
142	{	274	{
143	MAGIC *mg;	275	MAGIC *mg;
144		276
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		280	&& SvSTASH (SvRV (sv)) != aio_req_stash
		281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
147		283
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		285
150	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	287	}
152		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
153	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
154	{	302	{
155	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
156	{	304	{
157	dSP;	305	dSP;
158		306
159	ENTER;	307	ENTER;
160	SAVETMPS;	308	SAVETMPS;
161	PUSHMARK (SP);	309	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	311	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	313	SPAGAIN;
166	FREETMPS;	314	FREETMPS;
167	LEAVE;	315	LEAVE;
168	}	316	}
169	}	317	}
170		318
		319	static void
		320	req_submit (eio_req *req)
		321	{
		322	eio_submit (req);
		323
		324	if (expect_false (on_next_submit))
		325	{
		326	dSP;
		327	SV *cb = sv_2mortal (on_next_submit);
		328
		329	on_next_submit = 0;
		330
		331	PUSHMARK (SP);
		332	PUTBACK;
		333	call_sv (cb, G_DISCARD | G_EVAL);
		334	}
		335	}
		336
		337	static int
171	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
172	{	339	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
177		342
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
179	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
180	ENTER;	349	ENTER;
181	SAVETMPS;	350	SAVETMPS;
182	PUSHMARK (SP);	351	PUSHMARK (SP);
183	EXTEND (SP, 1);	352	EXTEND (SP, 1);
184		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
185	switch (req->type)	367	switch (req->type)
186	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
187	case EIO_READDIR:	373	case EIO_READDIR:
188	{	374	{
189	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
190		376
191	if (req->result >= 0)	377	if (req->result >= 0)
192	{	378	{
193	int i;	379	int i;
194	char *buf = req->ptr2;	380	char *names = (char *)req->ptr2;
		381	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	382	AV *av = newAV ();
196		383
197	av_extend (av, req->result - 1);	384	av_extend (av, req->result - 1);
198		385
199	for (i = 0; i < req->result; ++i)	386	for (i = 0; i < req->result; ++i)
200	{	387	{
201	SV *sv = newSVpv (buf, 0);	388	if (req->int1 & EIO_READDIR_DENTS)
		389	{
		390	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		391
		392	if (req->int1 & EIO_READDIR_CUSTOM2)
		393	{
		394	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		395	AV *avent = newAV ();
		396
		397	av_extend (avent, 2);
		398
		399	if (!sv_type [ent->type])
		400	{
		401	sv_type [ent->type] = newSViv (ent->type);
		402	SvREADONLY_on (sv_type [ent->type]);
		403	}
		404
		405	av_store (avent, 0, namesv);
		406	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		407	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		408
		409	av_store (av, i, newRV_noinc ((SV *)avent));
		410	}
		411	else
203	av_store (av, i, sv);	412	av_store (av, i, namesv);
		413
		414	++ent;
		415	}
		416	else
		417	{
		418	SV *name = newSVpv (names, 0);
		419	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	420	names += SvCUR (name) + 1;
		421	}
205	}	422	}
206		423
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	424	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	425	}
209		426
210	PUSHs (rv);	427	PUSHs (rv);
		428
		429	if (req->int1 & EIO_READDIR_CUSTOM1)
		430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
211	}	431	}
212	break;	432	break;
213		433
214	case EIO_OPEN:	434	case EIO_OPEN:
215	{	435	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	441	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	443	char sym [64];
224	int symlen;	444	int symlen;
225		445
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
228		448
229	symlen = snprintf (	449	symlen = snprintf (
230	sym,	450	sym,
231	sizeof (sym),	451	sizeof (sym),
232	"%s&=%d",	452	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	454	(int)req->result
235	);	455	);
236		456
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	458	fh = (SV *)gv;
239	}	459	}
240		460
241	PUSHs (fh);	461	PUSHs (fh);
242	}	462	}
		463	break;
		464
		465	case EIO_STATVFS:
		466	case EIO_FSTATVFS:
		467	{
		468	SV *rv = &PL_sv_undef;
		469
		470	#ifndef _WIN32
		471	if (req->result >= 0)
		472	{
		473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		474	HV *hv = newHV ();
		475
		476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		477
		478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		489	}
		490	#endif
		491
		492	PUSHs (rv);
		493	}
		494
243	break;	495	break;
244		496
245	case EIO_GROUP:	497	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
247		499
…		…
259	case EIO_NOP:	511	case EIO_NOP:
260	case EIO_BUSY:	512	case EIO_BUSY:
261	break;	513	break;
262		514
263	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
264	if (req->result > 0)	517	if (req->result > 0)
265	{	518	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;	519	break;
271		520
272	case EIO_STAT:	521	case EIO_STAT:
273	case EIO_LSTAT:	522	case EIO_LSTAT:
274	case EIO_FSTAT:	523	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
276	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
279	break;	531	break;
280		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		535	break;
		536
281	case EIO_READ:	537	case EIO_READ:
		538	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	541	SvPOK_only (req->sv2);
		542	SvSETMAGIC (req->sv2);
		543	PUSHs (sv_result);
		544	}
285	break;	545	break;
286		546
287	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	588	if (req->result > 0)
289	req->result = 0;	589	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	590	/* FALLTHROUGH */
291		591
292	default:	592	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
294	break;	594	break;
295	}	595	}
296		596
297	errno = req->errorno;	597	errno = req->errorno;
298		598
299	PUTBACK;	599	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	601	SPAGAIN;
302		602
		603	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		604	SvREFCNT_dec (sv_result);
		605	else
		606	sv_result_cache = sv_result;
		607
303	FREETMPS;	608	FREETMPS;
304	LEAVE;	609	LEAVE;
305		610
306	PUTBACK;	611	PUTBACK;
307	}	612	}
308		613
309	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
310	}	615	}
311		616
		617	static void
312	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
313	{	619	{
314	if (req->self)	620	if (req->self)
315	{	621	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
318	}	624	}
319		625
320	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
323		631
324	Safefree (req);	632	free (req);
325	}	633	}
326		634
		635	static void
327	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
328	{	637	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
332	return;	639	return;
333		640
334	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	642	grp->sv2 = 0;
336		643
337	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
338	}	645	}
339		646
340	#ifdef USE_SOCKETS_AS_HANDLES	647	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	648	create_respipe (void)
342	#else	649	{
343	# define TO_SOCKET(x) (x)	650	if (s_epipe_renew (&respipe))
344	#endif	651	croak ("IO::AIO: unable to initialize result pipe");
		652	}
345		653
346	static void	654	static void
347	create_respipe (void)	655	poll_wait (void)
348	{	656	{
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 ())	657	while (eio_nreqs ())
389	{	658	{
390	int size;	659	int size;
391		660
392	X_LOCK (reslock);	661	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	663	X_UNLOCK (reslock);
395		664
396	if (size)	665	if (size)
397	return;	666	return;
398		667
399	maybe_start_thread ();	668	etp_maybe_start_thread ();
400		669
401	FD_ZERO (&rfd);	670	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	671	}
406	}	672	}
407		673
408	static int poll_cb (void)	674	static int
		675	poll_cb (void)
409	{	676	{
410	int res;	677	for (;;)
411
412	do
413	{	678	{
414	res = eio_poll ();	679	int res = eio_poll ();
415		680
416	if (res > 0)	681	if (res > 0)
417	croak (0);	682	croak (0);
		683
		684	if (!max_outstanding || max_outstanding > eio_nreqs ())
		685	return res;
		686
		687	poll_wait ();
418	}	688	}
419	while (max_outstanding && max_outstanding <= eio_nreqs ());
420
421	return res;
422	}	689	}
423		690
424	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
425	{	693	{
426	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
		698	}
		699
		700	/*****************************************************************************/
		701
		702	#if !_POSIX_MAPPED_FILES
		703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		704	# define munmap(addr,length) EIO_ENOSYS ()
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
		714	#endif
		715
		716	#define MMAP_MAGIC PERL_MAGIC_ext
		717
		718	static int ecb_cold
		719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		720	{
		721	int old_errno = errno;
		722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		723	errno = old_errno;
		724
		725	mg->mg_obj = 0; /* just in case */
		726
		727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
		732	SvCUR_set (sv, 0);
		733	SvPVX (sv) = 0;
		734	SvOK_off (sv);
		735
		736	return 0;
		737	}
		738
		739	static MGVTBL mmap_vtbl = {
		740	0, 0, 0, 0, mmap_free
		741	};
		742
		743	/*****************************************************************************/
		744
		745	static SV *
		746	get_cb (SV *cb_sv)
		747	{
		748	SvGETMAGIC (cb_sv);
		749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		750	}
		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
427	}	770	}
428		771
429	#define dREQ \	772	#define dREQ \
430	aio_req req; \	773	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		774
444	#define REQ_SEND \	775	#define REQ_SEND \
		776	PUTBACK; \
445	eio_submit (req); \	777	req_submit (req); \
		778	SPAGAIN; \
446	\	779	\
447	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
448	XPUSHs (req_sv (req, AIO_REQ_KLASS));	781	XPUSHs (req_sv (req, aio_req_stash));
449		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
		848
450	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
451		850
452	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
453		852
454	BOOT:	853	BOOT:
455	{	854	{
		855	static const struct {
		856	const char *name;
		857	IV iv;
		858	} *civ, const_iv[] = {
		859	# define const_niv(name, value) { # name, (IV) value },
		860	# define const_iv(name) { # name, (IV) name },
		861	# define const_eio(name) { # name, (IV) EIO_ ## name },
		862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
		865	const_iv (ENOSYS)
		866	const_iv (EXDEV)
		867	const_iv (EBADR)
		868
		869	const_iv (O_RDONLY)
		870	const_iv (O_WRONLY)
		871	const_iv (O_RDWR)
		872	const_iv (O_CREAT)
		873	const_iv (O_TRUNC)
		874	const_iv (O_EXCL)
		875	const_iv (O_APPEND)
		876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
		893	const_iv (S_IFIFO)
		894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
		903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		915
		916	const_iv (ST_RDONLY)
		917	const_iv (ST_NOSUID)
		918	const_iv (ST_NODEV)
		919	const_iv (ST_NOEXEC)
		920	const_iv (ST_SYNCHRONOUS)
		921	const_iv (ST_MANDLOCK)
		922	const_iv (ST_WRITE)
		923	const_iv (ST_APPEND)
		924	const_iv (ST_IMMUTABLE)
		925	const_iv (ST_NOATIME)
		926	const_iv (ST_NODIRATIME)
		927	const_iv (ST_RELATIME)
		928
		929	const_iv (PROT_NONE)
		930	const_iv (PROT_EXEC)
		931	const_iv (PROT_READ)
		932	const_iv (PROT_WRITE)
		933
		934	/*const_iv (MAP_FIXED)*/
		935	const_iv (MAP_PRIVATE)
		936	const_iv (MAP_SHARED)
		937	const_iv (MAP_ANONYMOUS)
		938
		939	/* linuxish */
		940	const_iv (MAP_HUGETLB)
		941	const_iv (MAP_LOCKED)
		942	const_iv (MAP_NORESERVE)
		943	const_iv (MAP_POPULATE)
		944	const_iv (MAP_NONBLOCK)
		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_iv (SPLICE_F_MOVE)
		962	const_iv (SPLICE_F_NONBLOCK)
		963	const_iv (SPLICE_F_MORE)
		964	const_iv (SPLICE_F_GIFT)
		965
		966	const_iv (SEEK_DATA)
		967	const_iv (SEEK_HOLE)
		968
		969	/* libeio constants */
		970	const_eio (SEEK_SET)
		971	const_eio (SEEK_CUR)
		972	const_eio (SEEK_END)
		973
		974	const_eio (MCL_FUTURE)
		975	const_eio (MCL_CURRENT)
		976
		977	const_eio (MS_ASYNC)
		978	const_eio (MS_INVALIDATE)
		979	const_eio (MS_SYNC)
		980
		981	const_eio (MT_MODIFY)
		982
		983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		984	const_eio (SYNC_FILE_RANGE_WRITE)
		985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		986
		987	const_eio (FALLOC_FL_KEEP_SIZE)
		988
		989	const_eio (READDIR_DENTS)
		990	const_eio (READDIR_DIRS_FIRST)
		991	const_eio (READDIR_STAT_ORDER)
		992	const_eio (READDIR_FOUND_UNKNOWN)
		993
		994	const_eio (DT_UNKNOWN)
		995	const_eio (DT_FIFO)
		996	const_eio (DT_CHR)
		997	const_eio (DT_DIR)
		998	const_eio (DT_BLK)
		999	const_eio (DT_REG)
		1000	const_eio (DT_LNK)
		1001	const_eio (DT_SOCK)
		1002	const_eio (DT_WHT)
		1003	};
		1004
456	stash = gv_stashpv ("IO::AIO", 1);	1005	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1006	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1007	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1008	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
457		1009
458	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1010	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
459	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1011	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		1012
471	X_COND_CHECK (reqwait);	1013	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
472	#else
473	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474	#endif
475		1014
476	create_respipe ();	1015	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	}	1016	}
484		1017
485	void	1018	void
		1019	reinit ()
		1020	PROTOTYPE:
		1021
		1022	void
486	max_poll_reqs (int nreqs)	1023	max_poll_reqs (unsigned int nreqs)
487	PROTOTYPE: $	1024	PROTOTYPE: $
488	CODE:	1025	CODE:
489	eio_set_max_poll_reqs (nreqs);	1026	eio_set_max_poll_reqs (nreqs);
490		1027
491	void	1028	void
…		…
493	PROTOTYPE: $	1030	PROTOTYPE: $
494	CODE:	1031	CODE:
495	eio_set_max_poll_time (nseconds);	1032	eio_set_max_poll_time (nseconds);
496		1033
497	void	1034	void
498	min_parallel (int nthreads)	1035	min_parallel (unsigned int nthreads)
499	PROTOTYPE: $	1036	PROTOTYPE: $
500	CODE:	1037	CODE:
501	eio_set_min_parallel (nthreads);	1038	eio_set_min_parallel (nthreads);
502		1039
503	void	1040	void
504	max_parallel (int nthreads)	1041	max_parallel (unsigned int nthreads)
505	PROTOTYPE: $	1042	PROTOTYPE: $
506	CODE:	1043	CODE:
507	eio_set_max_parallel (nthreads);	1044	eio_set_max_parallel (nthreads);
508		1045
509	void	1046	void
510	max_idle (int nthreads)	1047	max_idle (unsigned int nthreads)
511	PROTOTYPE: $	1048	PROTOTYPE: $
512	CODE:	1049	CODE:
513	eio_set_max_idle (nthreads);	1050	eio_set_max_idle (nthreads);
514		1051
515	void	1052	void
		1053	idle_timeout (unsigned int seconds)
		1054	PROTOTYPE: $
		1055	CODE:
		1056	eio_set_idle_timeout (seconds);
		1057
		1058	void
516	max_outstanding (int maxreqs)	1059	max_outstanding (unsigned int maxreqs)
517	PROTOTYPE: $	1060	PROTOTYPE: $
518	CODE:	1061	CODE:
519	max_outstanding = maxreqs;	1062	max_outstanding = maxreqs;
520		1063
521	void	1064	void
		1065	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1066	PPCODE:
		1067	{
		1068	dREQ;
		1069
		1070	req->type = EIO_WD_OPEN;
		1071	req_set_path1 (req, pathname);
		1072
		1073	REQ_SEND;
		1074	}
		1075
		1076	void
522	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1077	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
523	PROTOTYPE: $$$;$
524	PPCODE:	1078	PPCODE:
525	{	1079	{
526	dREQ;	1080	dREQ;
527		1081
528	req->type = EIO_OPEN;	1082	req->type = EIO_OPEN;
529	req->sv1 = newSVsv (pathname);	1083	req_set_path1 (req, pathname);
530	req->ptr1 = SvPVbyte_nolen (req->sv1);
531	req->int1 = flags;	1084	req->int1 = flags;
532	req->int2 = mode;	1085	req->int2 = mode;
533		1086
534	REQ_SEND;	1087	REQ_SEND;
535	}	1088	}
536		1089
537	void	1090	void
538	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1091	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $;$
540	ALIAS:	1092	ALIAS:
541	aio_fsync = EIO_FSYNC	1093	aio_fsync = EIO_FSYNC
542	aio_fdatasync = EIO_FDATASYNC	1094	aio_fdatasync = EIO_FDATASYNC
		1095	aio_syncfs = EIO_SYNCFS
543	PPCODE:	1096	PPCODE:
544	{	1097	{
		1098	int fd = s_fileno_croak (fh, 0);
545	dREQ;	1099	dREQ;
546		1100
547	req->type = ix;	1101	req->type = ix;
548	req->sv1 = newSVsv (fh);	1102	req->sv1 = newSVsv (fh);
549	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1103	req->int1 = fd;
550		1104
551	REQ_SEND (req);	1105	REQ_SEND;
		1106	}
		1107
		1108	void
		1109	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1110	PPCODE:
		1111	{
		1112	int fd = s_fileno_croak (fh, 0);
		1113	dREQ;
		1114
		1115	req->type = EIO_SYNC_FILE_RANGE;
		1116	req->sv1 = newSVsv (fh);
		1117	req->int1 = fd;
		1118	req->offs = offset;
		1119	req->size = nbytes;
		1120	req->int2 = flags;
		1121
		1122	REQ_SEND;
		1123	}
		1124
		1125	void
		1126	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1127	PPCODE:
		1128	{
		1129	int fd = s_fileno_croak (fh, 0);
		1130	dREQ;
		1131
		1132	req->type = EIO_FALLOCATE;
		1133	req->sv1 = newSVsv (fh);
		1134	req->int1 = fd;
		1135	req->int2 = mode;
		1136	req->offs = offset;
		1137	req->size = len;
		1138
		1139	REQ_SEND;
552	}	1140	}
553		1141
554	void	1142	void
555	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1143	aio_close (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	PPCODE:	1144	PPCODE:
558	{	1145	{
559	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1146	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1147	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1148	dREQ;
561		1149
562	if (close_pipe < 0)	1150	if (expect_false (close_fd < 0))
563	{	1151	{
564	int pipefd [2];	1152	int pipefd [2];
565		1153
		1154	if (
		1155	#ifdef _WIN32
		1156	_pipe (pipefd, 1, _O_BINARY) < 0
		1157	#else
566	if (pipe (pipefd) < 0	1158	pipe (pipefd) < 0
567	|| close (pipefd [1]) < 0
568	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1159	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1160	#endif
		1161	|| close (pipefd [1]) < 0
		1162	)
569	abort (); /*D*/	1163	abort (); /*D*/
570		1164
571	close_pipe = pipefd [0];	1165	close_fd = pipefd [0];
572	}	1166	}
573		1167
574	req->type = EIO_DUP2;	1168	req->type = EIO_DUP2;
575	req->int1 = close_pipe;	1169	req->int1 = close_fd;
576	req->sv2 = newSVsv (fh);	1170	req->sv2 = newSVsv (fh);
577	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1171	req->int2 = fd;
578		1172
579	REQ_SEND (req);	1173	REQ_SEND;
		1174	}
		1175
		1176	void
		1177	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1178	PPCODE:
		1179	{
		1180	int fd = s_fileno_croak (fh, 0);
		1181	dREQ;
		1182
		1183	req->type = EIO_SEEK;
		1184	req->sv1 = newSVsv (fh);
		1185	req->int1 = fd;
		1186	req->offs = SvVAL64 (offset);
		1187	req->int2 = whence;
		1188
		1189	REQ_SEND;
580	}	1190	}
581		1191
582	void	1192	void
583	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1193	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
584	ALIAS:	1194	ALIAS:
585	aio_read = EIO_READ	1195	aio_read = EIO_READ
586	aio_write = EIO_WRITE	1196	aio_write = EIO_WRITE
587	PROTOTYPE: $$$$$;$
588	PPCODE:	1197	PPCODE:
589	{	1198	{
590	STRLEN svlen;	1199	STRLEN svlen;
		1200	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
591	char *svptr = SvPVbyte (data, svlen);	1201	char *svptr = SvPVbyte (data, svlen);
592	UV len = SvUV (length);	1202	UV len = SvUV (length);
593
594	SvUPGRADE (data, SVt_PV);
595	SvPOK_on (data);
596		1203
597	if (dataoffset < 0)	1204	if (dataoffset < 0)
598	dataoffset += svlen;	1205	dataoffset += svlen;
599		1206
600	if (dataoffset < 0 || dataoffset > svlen)	1207	if (dataoffset < 0 || dataoffset > svlen)
…		…
606	if (!SvOK (length) || len + dataoffset > svlen)	1213	if (!SvOK (length) || len + dataoffset > svlen)
607	len = svlen - dataoffset;	1214	len = svlen - dataoffset;
608	}	1215	}
609	else	1216	else
610	{	1217	{
611	/* read: grow scalar as necessary */	1218	/* read: check type and grow scalar as necessary */
		1219	SvUPGRADE (data, SVt_PV);
612	svptr = SvGROW (data, len + dataoffset + 1);	1220	svptr = SvGROW (data, len + dataoffset + 1);
613	}	1221	}
614		1222
615	if (len < 0)
616	croak ("length must not be negative");
617
618	{	1223	{
619	dREQ;	1224	dREQ;
620		1225
621	req->type = ix;	1226	req->type = ix;
622	req->sv1 = newSVsv (fh);	1227	req->sv1 = newSVsv (fh);
623	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1228	req->int1 = fd;
624	: IoOFP (sv_2io (fh)));
625	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1229	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
626	req->size = len;	1230	req->size = len;
627	req->sv2 = SvREFCNT_inc (data);	1231	req->sv2 = SvREFCNT_inc (data);
628	req->ptr2 = (char *)svptr + dataoffset;	1232	req->ptr2 = (char *)svptr + dataoffset;
629	req->stroffset = dataoffset;	1233	req->stroffset = dataoffset;
…		…
637	REQ_SEND;	1241	REQ_SEND;
638	}	1242	}
639	}	1243	}
640		1244
641	void	1245	void
642	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1246	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
643	PROTOTYPE: $$;$	1247	ALIAS:
		1248	aio_readlink = EIO_READLINK
		1249	aio_realpath = EIO_REALPATH
644	PPCODE:	1250	PPCODE:
645	{	1251	{
646	SV *data;
647	dREQ;	1252	dREQ;
648		1253
649	data = newSV (NAME_MAX);
650	SvPOK_on (data);
651
652	req->type = EIO_READLINK;	1254	req->type = ix;
653	req->sv1 = newSVsv (path);	1255	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->sv2 = data;
656	req->ptr2 = SvPVbyte_nolen (data);
657		1256
658	REQ_SEND;	1257	REQ_SEND;
659	}	1258	}
660		1259
661	void	1260	void
662	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1261	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$$$;$
664	PPCODE:	1262	PPCODE:
665	{	1263	{
		1264	int ifd = s_fileno_croak (in_fh , 0);
		1265	int ofd = s_fileno_croak (out_fh, 1);
666	dREQ;	1266	dREQ;
667		1267
668	req->type = EIO_SENDFILE;	1268	req->type = EIO_SENDFILE;
669	req->sv1 = newSVsv (out_fh);	1269	req->sv1 = newSVsv (out_fh);
670	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1270	req->int1 = ofd;
671	req->sv2 = newSVsv (in_fh);	1271	req->sv2 = newSVsv (in_fh);
672	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1272	req->int2 = ifd;
673	req->offs = SvVAL64 (in_offset);	1273	req->offs = in_offset;
674	req->size = length;	1274	req->size = length;
675		1275
676	REQ_SEND;	1276	REQ_SEND;
677	}	1277	}
678		1278
679	void	1279	void
680	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1280	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$;$
682	PPCODE:	1281	PPCODE:
683	{	1282	{
		1283	int fd = s_fileno_croak (fh, 0);
684	dREQ;	1284	dREQ;
685		1285
686	req->type = EIO_READAHEAD;	1286	req->type = EIO_READAHEAD;
687	req->sv1 = newSVsv (fh);	1287	req->sv1 = newSVsv (fh);
688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1288	req->int1 = fd;
689	req->offs = SvVAL64 (offset);	1289	req->offs = offset;
690	req->size = length;	1290	req->size = length;
691		1291
692	REQ_SEND;	1292	REQ_SEND;
693	}	1293	}
694		1294
695	void	1295	void
696	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1296	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
697	ALIAS:	1297	ALIAS:
698	aio_stat = EIO_STAT	1298	aio_stat = EIO_STAT
699	aio_lstat = EIO_LSTAT	1299	aio_lstat = EIO_LSTAT
		1300	aio_statvfs = EIO_STATVFS
700	PPCODE:	1301	PPCODE:
701	{	1302	{
702	dREQ;	1303	dREQ;
703		1304
704	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1305	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		1306
725	REQ_SEND;	1307	REQ_SEND;
726	}	1308	}
		1309
		1310	UV
		1311	major (UV dev)
		1312	ALIAS:
		1313	minor = 1
		1314	CODE:
		1315	RETVAL = ix ? major (dev) : minor (dev);
		1316	OUTPUT:
		1317	RETVAL
		1318
		1319	UV
		1320	makedev (UV maj, UV min)
		1321	CODE:
		1322	RETVAL = makedev (maj, min);
		1323	OUTPUT:
		1324	RETVAL
727		1325
728	void	1326	void
729	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1327	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730	PPCODE:	1328	PPCODE:
731	{	1329	{
732	dREQ;	1330	dREQ;
733		1331
734	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1332	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1333	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736	req->sv1 = newSVsv (fh_or_path);	1334	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		1335
749	REQ_SEND;	1336	REQ_SEND;
750	}	1337	}
751		1338
752	void	1339	void
753	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1340	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754	PPCODE:	1341	PPCODE:
755	{	1342	{
756	dREQ;	1343	dREQ;
757		1344
758	req->sv1 = newSVsv (fh_or_path);
759	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1345	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760		1346	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		1347
772	REQ_SEND;	1348	REQ_SEND;
773	}	1349	}
774		1350
775	void	1351	void
776	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1352	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:	1353	PPCODE:
782	{	1354	{
783	dREQ;	1355	dREQ;
784		1356
785	req->type = ix;
786	req->int2 = mode;	1357	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1358	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		1359
794	REQ_SEND;	1360	REQ_SEND;
795	}	1361	}
796		1362
797	void	1363	void
…		…
800	{	1366	{
801	dREQ;	1367	dREQ;
802		1368
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1369	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1370	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1371	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1372
807	if (SvPOK (fh_or_path))	1373	REQ_SEND;
808	{	1374	}
		1375
		1376	void
		1377	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1378	PPCODE:
		1379	{
		1380	dREQ;
		1381
		1382	req->type = EIO_READDIR;
		1383	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1384
		1385	if (flags & EIO_READDIR_DENTS)
		1386	req->int1 |= EIO_READDIR_CUSTOM2;
		1387
		1388	req_set_path1 (req, pathname);
		1389
		1390	REQ_SEND;
		1391	}
		1392
		1393	void
		1394	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1395	PPCODE:
		1396	{
		1397	dREQ;
		1398
809	req->type = EIO_CHOWN;	1399	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1400	req->int2 = mode;
811	}	1401	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		1402
818	REQ_SEND;	1403	REQ_SEND;
819	}	1404	}
820		1405
821	void	1406	void
…		…
827	PPCODE:	1412	PPCODE:
828	{	1413	{
829	dREQ;	1414	dREQ;
830		1415
831	req->type = ix;	1416	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1417	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1418
835	REQ_SEND;	1419	REQ_SEND;
836	}	1420	}
837		1421
838	void	1422	void
…		…
841	aio_link = EIO_LINK	1425	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1426	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1427	aio_rename = EIO_RENAME
844	PPCODE:	1428	PPCODE:
845	{	1429	{
		1430	eio_wd wd2 = 0;
846	dREQ;	1431	dREQ;
847		1432
848	req->type = ix;	1433	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1434	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1435	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1436	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1437
854	REQ_SEND;	1438	REQ_SEND;
855	}	1439	}
856		1440
857	void	1441	void
…		…
859	PPCODE:	1443	PPCODE:
860	{	1444	{
861	dREQ;	1445	dREQ;
862		1446
863	req->type = EIO_MKNOD;	1447	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1448	req->int2 = (mode_t)mode;
867	req->offs = dev;	1449	req->offs = dev;
		1450	req_set_path1 (req, pathname);
868		1451
869	REQ_SEND;	1452	REQ_SEND;
870	}	1453	}
871		1454
872	void	1455	void
		1456	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1457	ALIAS:
		1458	aio_mtouch = EIO_MTOUCH
		1459	aio_msync = EIO_MSYNC
		1460	PPCODE:
		1461	{
		1462	STRLEN svlen;
		1463	char *svptr = SvPVbyte (data, svlen);
		1464	UV len = SvUV (length);
		1465
		1466	if (offset < 0)
		1467	offset += svlen;
		1468
		1469	if (offset < 0 || offset > svlen)
		1470	croak ("offset outside of scalar");
		1471
		1472	if (!SvOK (length) || len + offset > svlen)
		1473	len = svlen - offset;
		1474
		1475	{
		1476	dREQ;
		1477
		1478	req->type = ix;
		1479	req->sv2 = SvREFCNT_inc (data);
		1480	req->ptr2 = (char *)svptr + offset;
		1481	req->size = len;
		1482	req->int1 = flags;
		1483
		1484	REQ_SEND;
		1485	}
		1486	}
		1487
		1488	void
		1489	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1490	PPCODE:
		1491	{
		1492	STRLEN svlen;
		1493	char *svptr = SvPVbyte (data, svlen);
		1494	UV len = SvUV (length);
		1495
		1496	if (offset < 0)
		1497	offset += svlen;
		1498
		1499	if (offset < 0 || offset > svlen)
		1500	croak ("offset outside of scalar");
		1501
		1502	if (!SvOK (length) || len + offset > svlen)
		1503	len = svlen - offset;
		1504
		1505	{
		1506	dREQ;
		1507
		1508	req->type = EIO_MLOCK;
		1509	req->sv2 = SvREFCNT_inc (data);
		1510	req->ptr2 = (char *)svptr + offset;
		1511	req->size = len;
		1512
		1513	REQ_SEND;
		1514	}
		1515	}
		1516
		1517	void
		1518	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1519	PPCODE:
		1520	{
		1521	dREQ;
		1522
		1523	req->type = EIO_MLOCKALL;
		1524	req->int1 = flags;
		1525
		1526	REQ_SEND;
		1527	}
		1528
		1529	void
		1530	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1531	PPCODE:
		1532	{
		1533	int fd = s_fileno_croak (fh, 0);
		1534	dREQ;
		1535
		1536	req->type = EIO_CUSTOM;
		1537	req->sv1 = newSVsv (fh);
		1538	req->int1 = fd;
		1539
		1540	req->feed = fiemap;
		1541	#if HAVE_FIEMAP
		1542	/* keep our fingers crossed that the next two types are 64 bit */
		1543	req->offs = start;
		1544	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1545	req->int2 = flags;
		1546	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1547	#endif
		1548
		1549	REQ_SEND;
		1550	}
		1551
		1552	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1553	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1554	PPCODE:
875	{	1555	{
876	dREQ;	1556	dREQ;
877		1557
…		…
881	REQ_SEND;	1561	REQ_SEND;
882	}	1562	}
883		1563
884	void	1564	void
885	aio_group (SV *callback=&PL_sv_undef)	1565	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1566	PPCODE:
888	{	1567	{
889	dREQ;	1568	dREQ;
890		1569
891	req->type = EIO_GROUP;	1570	req->type = EIO_GROUP;
892		1571
893	eio_submit (req);	1572	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1573	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1574	}
896		1575
897	void	1576	void
898	aio_nop (SV *callback=&PL_sv_undef)	1577	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1578	ALIAS:
…		…
908	REQ_SEND;	1587	REQ_SEND;
909	}	1588	}
910		1589
911	int	1590	int
912	aioreq_pri (int pri = 0)	1591	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1592	CODE:
915	RETVAL = next_pri - EIO_PRI_BIAS;	1593	RETVAL = next_pri;
916	if (items > 0)	1594	if (items > 0)
917	{	1595	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1596	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1597	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920	next_pri = pri + EIO_PRI_BIAS;	1598	next_pri = pri;
921	}	1599	}
922	OUTPUT:	1600	OUTPUT:
923	RETVAL	1601	RETVAL
924		1602
925	void	1603	void
926	aioreq_nice (int nice = 0)	1604	aioreq_nice (int nice = 0)
927	CODE:	1605	CODE:
928	nice = next_pri - nice;	1606	nice = next_pri - nice;
929	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1607	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1608	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice + EIO_PRI_BIAS;	1609	next_pri = nice;
932		1610
933	void	1611	void
934	flush ()	1612	flush ()
935	PROTOTYPE:
936	CODE:	1613	CODE:
937	while (eio_nreqs ())	1614	while (eio_nreqs ())
938	{	1615	{
939	poll_wait ();	1616	poll_wait ();
940	poll_cb ();	1617	poll_cb ();
941	}	1618	}
942		1619
943	int	1620	int
944	poll()	1621	poll ()
945	PROTOTYPE:
946	CODE:	1622	CODE:
947	poll_wait ();	1623	poll_wait ();
948	RETVAL = poll_cb ();	1624	RETVAL = poll_cb ();
949	OUTPUT:	1625	OUTPUT:
950	RETVAL	1626	RETVAL
951		1627
952	int	1628	int
953	poll_fileno()	1629	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1630	CODE:
956	RETVAL = respipe [0];	1631	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1632	OUTPUT:
958	RETVAL	1633	RETVAL
959		1634
960	int	1635	int
961	poll_cb(...)	1636	poll_cb (...)
962	PROTOTYPE:	1637	PROTOTYPE:
963	CODE:	1638	CODE:
964	RETVAL = poll_cb ();	1639	RETVAL = poll_cb ();
965	OUTPUT:	1640	OUTPUT:
966	RETVAL	1641	RETVAL
967		1642
968	void	1643	void
969	poll_wait()	1644	poll_wait ()
970	PROTOTYPE:
971	CODE:	1645	CODE:
972	poll_wait ();	1646	poll_wait ();
973		1647
974	int	1648	int
975	nreqs()	1649	nreqs ()
976	PROTOTYPE:
977	CODE:	1650	CODE:
978	RETVAL = eio_nreqs ();	1651	RETVAL = eio_nreqs ();
979	OUTPUT:	1652	OUTPUT:
980	RETVAL	1653	RETVAL
981		1654
982	int	1655	int
983	nready()	1656	nready ()
984	PROTOTYPE:
985	CODE:	1657	CODE:
986	RETVAL = eio_nready ();	1658	RETVAL = eio_nready ();
987	OUTPUT:	1659	OUTPUT:
988	RETVAL	1660	RETVAL
989		1661
990	int	1662	int
991	npending()	1663	npending ()
992	PROTOTYPE:
993	CODE:	1664	CODE:
994	RETVAL = eio_npending ();	1665	RETVAL = eio_npending ();
995	OUTPUT:	1666	OUTPUT:
996	RETVAL	1667	RETVAL
997		1668
998	int	1669	int
999	nthreads()	1670	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1671	CODE:
1002	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1672	RETVAL = eio_nthreads ();
1003	RETVAL = started;
1004	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005	OUTPUT:	1673	OUTPUT:
1006	RETVAL	1674	RETVAL
1007		1675
		1676	int
		1677	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1678	CODE:
		1679	RETVAL = posix_fadvise (fh, offset, length, advice);
		1680	OUTPUT:
		1681	RETVAL
		1682
		1683	IV
		1684	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1685	CODE:
		1686	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1687	OUTPUT:
		1688	RETVAL
		1689
		1690	void
		1691	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1692	PPCODE:
		1693	sv_unmagic (scalar, MMAP_MAGIC);
		1694	{
		1695	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1696	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1697	if (addr == (void *)-1)
		1698	XSRETURN_NO;
		1699
		1700	sv_force_normal (scalar);
		1701
		1702	/* we store the length in mg_obj, as namlen is I32 :/ */
		1703	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1704	->mg_obj = (SV *)length;
		1705
		1706	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1707
		1708	if (!(prot & PROT_WRITE))
		1709	SvREADONLY_on (scalar);
		1710
		1711	if (SvLEN (scalar))
		1712	Safefree (SvPVX (scalar));
		1713
		1714	SvPVX (scalar) = (char *)addr;
		1715	SvCUR_set (scalar, length);
		1716	SvLEN_set (scalar, 0);
		1717	SvPOK_only (scalar);
		1718
		1719	XSRETURN_YES;
		1720	}
		1721
		1722	void
		1723	munmap (SV *scalar)
		1724	CODE:
		1725	sv_unmagic (scalar, MMAP_MAGIC);
		1726
		1727	int
		1728	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1729	ALIAS:
		1730	mprotect = 1
		1731	CODE:
		1732	{
		1733	STRLEN svlen;
		1734	void *addr = SvPVbyte (scalar, svlen);
		1735	size_t len = SvUV (length);
		1736
		1737	if (offset < 0)
		1738	offset += svlen;
		1739
		1740	if (offset < 0 || offset > svlen)
		1741	croak ("offset outside of scalar");
		1742
		1743	if (!SvOK (length) || len + offset > svlen)
		1744	len = svlen - offset;
		1745
		1746	addr = (void *)(((intptr_t)addr) + offset);
		1747	eio_page_align (&addr, &len);
		1748
		1749	switch (ix)
		1750	{
		1751	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1752	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1753	}
		1754	}
		1755	OUTPUT:
		1756	RETVAL
		1757
		1758	int
		1759	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1760	CODE:
		1761	{
		1762	STRLEN svlen;
		1763	void *addr = SvPVbyte (scalar, svlen);
		1764	size_t len = SvUV (length);
		1765
		1766	if (offset < 0)
		1767	offset += svlen;
		1768
		1769	if (offset < 0 || offset > svlen)
		1770	croak ("offset outside of scalar");
		1771
		1772	if (!SvOK (length) || len + offset > svlen)
		1773	len = svlen - offset;
		1774
		1775	addr = (void *)(((intptr_t)addr) + offset);
		1776	eio_page_align (&addr, &len);
		1777	#if _POSIX_MEMLOCK_RANGE
		1778	RETVAL = munlock (addr, len);
		1779	#else
		1780	RETVAL = EIO_ENOSYS ();
		1781	#endif
		1782	}
		1783	OUTPUT:
		1784	RETVAL
		1785
		1786	int
		1787	munlockall ()
		1788	CODE:
		1789	#if _POSIX_MEMLOCK
		1790	munlockall ();
		1791	#else
		1792	RETVAL = EIO_ENOSYS ();
		1793	#endif
		1794	OUTPUT:
		1795	RETVAL
		1796
		1797	int
		1798	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1799	CODE:
		1800	{
		1801	#if HAVE_LINUX_SPLICE
		1802	loff_t off_in_, off_out_;
		1803	RETVAL = splice (
		1804	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1805	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1806	length, flags
		1807	);
		1808	#else
		1809	RETVAL = EIO_ENOSYS ();
		1810	#endif
		1811	}
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int
		1816	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1817	CODE:
		1818	#if HAVE_LINUX_SPLICE
		1819	RETVAL = tee (rfh, wfh, length, flags);
		1820	#else
		1821	RETVAL = EIO_ENOSYS ();
		1822	#endif
		1823	OUTPUT:
		1824	RETVAL
		1825
		1826	void _on_next_submit (SV *cb)
		1827	CODE:
		1828	SvREFCNT_dec (on_next_submit);
		1829	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1830
1008	PROTOTYPES: DISABLE	1831	PROTOTYPES: DISABLE
		1832
		1833	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1834
		1835	BOOT:
		1836	{
		1837	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1838	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1839	}
		1840
		1841	void
		1842	DESTROY (SV *self)
		1843	CODE:
		1844	{
		1845	aio_wd wd = SvAIO_WD (self);
		1846	#if HAVE_AT
		1847	{
		1848	SV *callback = &PL_sv_undef;
		1849	dREQ; /* clobbers next_pri :/ */
		1850	next_pri = req->pri; /* restore next_pri */
		1851	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1852	req->type = EIO_WD_CLOSE;
		1853	req->wd = wd;
		1854	REQ_SEND;
		1855	}
		1856	#else
		1857	eio_wd_close_sync (wd);
		1858	#endif
		1859	}
1009		1860
1010	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1861	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011		1862
1012	void	1863	void
1013	cancel (aio_req_ornot req)	1864	cancel (aio_req_ornot req)
1014	CODE:	1865	CODE:
1015	eio_cancel (req);	1866	eio_cancel (req);
1016		1867
1017	void	1868	void
1018	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1869	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1019	CODE:	1870	PPCODE:
		1871	{
		1872	if (GIMME_V != G_VOID)
		1873	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1874
		1875	if (items > 1)
		1876	{
		1877	SV *cb_cv =get_cb (callback);
		1878
1020	SvREFCNT_dec (req->callback);	1879	SvREFCNT_dec (req->callback);
1021	req->callback = newSVsv (callback);	1880	req->callback = SvREFCNT_inc (cb_cv);
		1881	}
		1882	}
1022		1883
1023	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1884	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024		1885
1025	void	1886	void
1026	add (aio_req grp, ...)	1887	add (aio_req grp, ...)
…		…
1058	AV *av;	1919	AV *av;
1059		1920
1060	grp->errorno = errno;	1921	grp->errorno = errno;
1061		1922
1062	av = newAV ();	1923	av = newAV ();
		1924	av_extend (av, items - 1);
1063		1925
1064	for (i = 1; i < items; ++i )	1926	for (i = 1; i < items; ++i )
1065	av_push (av, newSVsv (ST (i)));	1927	av_push (av, newSVsv (ST (i)));
1066		1928
1067	SvREFCNT_dec (grp->sv1);	1929	SvREFCNT_dec (grp->sv1);
…		…
1081	void	1943	void
1082	feed (aio_req grp, SV *callback=&PL_sv_undef)	1944	feed (aio_req grp, SV *callback=&PL_sv_undef)
1083	CODE:	1945	CODE:
1084	{	1946	{
1085	SvREFCNT_dec (grp->sv2);	1947	SvREFCNT_dec (grp->sv2);
1086	grp->sv2 = newSVsv (callback);	1948	grp->sv2 = newSVsv (callback);
		1949	grp->feed = aio_grp_feed;
1087		1950
1088	if (grp->int2 <= 0)	1951	if (grp->int2 <= 0)
1089	grp->int2 = 2;	1952	grp->int2 = 2;
1090		1953
1091	eio_grp_limit (grp, grp->int2);	1954	eio_grp_limit (grp, grp->int2);

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