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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.150 by root, Wed Jul 1 08:11:24 2009 UTC vs.
Revision 1.226 by root, Sun Jan 6 11:48:14 2013 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
18	/* perl namespace pollution */	33	/* perl namespace pollution */
19	#undef VERSION	34	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		35
70	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	38	#undef readdir
73	#undef opendir	39	#undef opendir
74	#undef closedir	40	#undef closedir
75		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		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
		75
		76	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define VAL64 IV
81	# define SvVAL64 SvIV
82	# define newSVval64 newSViv
83	#else	79	#else
84	# define VAL64 NV	80
85	# define SvVAL64 SvNV	81	#include <sys/time.h>
86	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
87	#endif	89	#endif
88		90
89	/*****************************************************************************/	91	/*****************************************************************************/
90		92
91	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
99		101
100	/*****************************************************************************/	102	/*****************************************************************************/
101		103
102	static HV *stash;
103	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
106		107
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
109		109
110	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
111	SV *callback; \	111	SV *callback; \
112	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
113	STRLEN stroffset; \	114	STRLEN stroffset; \
114	SV *self;	115	SV *self;
115		116
116	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
117		118
		119	#include "libeio/config.h"
118	#include "libeio/eio.h"	120	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		121
145	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
149		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	#if PAGESIZE <= 0
		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	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (actually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		224	return;
		225
		226	if (!incmap->fm_mapped_extents)
		227	goto done;
		228
		229	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		230	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		231	errno = ENOMEM;
		232	if (!fiemap)
		233	return;
		234
		235	req->ptr1 = fiemap;
		236
		237	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		238	{
		239	struct fiemap_extent *e = incmap->fm_extents + count;
		240
		241	if (e->fe_logical + e->fe_length >= end_offset)
		242	goto done;
		243
		244	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		245
		246	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		247	goto done;
		248
		249	}
		250	}
		251
		252	done:
		253	req->result = 0;
		254
		255	#else
		256	errno = ENOSYS;
		257	#endif
		258	}
		259
		260	/*****************************************************************************/
		261
150	enum {	262	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	264	};
153		265
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
158		269
159	static SV *on_next_submit;	270	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	271	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	272	static int max_outstanding;
162		273
163	static int respipe_osf [2], respipe [2] = { -1, -1 };	274	static s_epipe respipe;
164		275
165	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
167		278
168	static void want_poll (void)	279	static void
		280	want_poll (void)
169	{	281	{
170	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
171	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	283	s_epipe_signal (&respipe);
172	}	284	}
173		285
174	static void done_poll (void)	286	static void
		287	done_poll (void)
175	{	288	{
176	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
177	char buf [4];	290	s_epipe_drain (&respipe);
178	while (respipe_read (respipe [0], buf, 4) == 4)
179	;
180	}	291	}
181		292
182	/* must be called at most once */	293	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	294	static SV *
		295	req_sv (aio_req req, HV *stash)
184	{	296	{
185	if (!req->self)	297	if (!req->self)
186	{	298	{
187	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	301	}
190		302
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	304	}
193		305
194	static aio_req SvAIO_REQ (SV *sv)	306	static SV *
		307	newSVaio_wd (aio_wd wd)
		308	{
		309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		310	}
		311
		312	static aio_req
		313	SvAIO_REQ (SV *sv)
195	{	314	{
196	MAGIC *mg;	315	MAGIC *mg;
197		316
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	317	if (!SvROK (sv)
		318	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		319	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		320	&& SvSTASH (SvRV (sv)) != aio_req_stash
		321	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	322	croak ("object of class IO::AIO::REQ expected");
200		323
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		325
203	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	327	}
205		328
		329	static aio_wd
		330	SvAIO_WD (SV *sv)
		331	{
		332	if (!SvROK (sv)
		333	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		336
		337	return (aio_wd)(long)SvIVX (SvRV (sv));
		338	}
		339
		340	static void
206	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
207	{	342	{
208	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
209	{	344	{
210	dSP;	345	dSP;
211		346
212	ENTER;	347	ENTER;
213	SAVETMPS;	348	SAVETMPS;
214	PUSHMARK (SP);	349	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	350	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	351	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	352	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	353	SPAGAIN;
219	FREETMPS;	354	FREETMPS;
220	LEAVE;	355	LEAVE;
221	}	356	}
222	}	357	}
223		358
		359	static void
224	static void req_submit (eio_req *req)	360	req_submit (eio_req *req)
225	{	361	{
226	eio_submit (req);	362	eio_submit (req);
227		363
228	if (expect_false (on_next_submit))	364	if (expect_false (on_next_submit))
229	{	365	{
…		…
236	PUTBACK;	372	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	373	call_sv (cb, G_DISCARD | G_EVAL);
238	}	374	}
239	}	375	}
240		376
		377	static int
241	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
242	{	379	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
247		382
248	if (!EIO_CANCELLED (req) && req->callback)	383	if (!EIO_CANCELLED (req) && req->callback)
249	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
250	ENTER;	389	ENTER;
251	SAVETMPS;	390	SAVETMPS;
252	PUSHMARK (SP);	391	PUSHMARK (SP);
253	EXTEND (SP, 1);	392	EXTEND (SP, 1);
254		393
		394	/* do not recreate the result IV from scratch each time */
		395	if (expect_true (sv_result_cache))
		396	{
		397	sv_result = sv_result_cache; sv_result_cache = 0;
		398	SvIV_set (sv_result, req->result);
		399	SvIOK_only (sv_result);
		400	}
		401	else
		402	{
		403	sv_result = newSViv (req->result);
		404	SvREADONLY_on (sv_result);
		405	}
		406
255	switch (req->type)	407	switch (req->type)
256	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
257	case EIO_READDIR:	413	case EIO_READDIR:
258	{	414	{
259	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
260		416
261	if (req->result >= 0)	417	if (req->result >= 0)
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	482	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	483	char sym [64];
328	int symlen;	484	int symlen;
329		485
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	486	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	487	gv_init (gv, aio_stash, sym, symlen, 0);
332		488
333	symlen = snprintf (	489	symlen = snprintf (
334	sym,	490	sym,
335	sizeof (sym),	491	sizeof (sym),
336	"%s&=%d",	492	"%s&=%d",
…		…
344		500
345	PUSHs (fh);	501	PUSHs (fh);
346	}	502	}
347	break;	503	break;
348		504
		505	case EIO_STATVFS:
		506	case EIO_FSTATVFS:
		507	{
		508	SV *rv = &PL_sv_undef;
		509
		510	#ifndef _WIN32
		511	if (req->result >= 0)
		512	{
		513	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		514	HV *hv = newHV ();
		515	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		516	* chooses to make it a struct.
		517	*/
		518	unsigned long fsid = 0;
		519	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		520
		521	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		522
		523	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		524	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		525	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		526	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		527	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		528	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		529	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		530	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		531	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		532	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		533	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		534	}
		535	#endif
		536
		537	PUSHs (rv);
		538	}
		539
		540	break;
		541
349	case EIO_GROUP:	542	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	543	req->int1 = 2; /* mark group as finished */
351		544
352	if (req->sv1)	545	if (req->sv1)
353	{	546	{
…		…
363	case EIO_NOP:	556	case EIO_NOP:
364	case EIO_BUSY:	557	case EIO_BUSY:
365	break;	558	break;
366		559
367	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
368	if (req->result > 0)	562	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	563	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	564	break;
371		565
372	case EIO_STAT:	566	case EIO_STAT:
373	case EIO_LSTAT:	567	case EIO_LSTAT:
374	case EIO_FSTAT:	568	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
376	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
		576	break;
		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
379	break;	580	break;
380		581
381	case EIO_READ:	582	case EIO_READ:
382	{	583	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	584	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	586	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	587	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	588	PUSHs (sv_result);
388	}	589	}
389	break;	590	break;
390		591
391	case EIO_DUP2:	592	case EIO_CUSTOM:
		593	if (req->feed == fiemap)
		594	{
		595	#if HAVE_FIEMAP
		596	if (!req->result)
		597	{
		598	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		599
		600	if (fiemap->fm_extent_count)
		601	{
		602	AV *av = newAV ();
		603	int i;
		604
		605	while (fiemap->fm_mapped_extents)
		606	{
		607	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		608	AV *ext_av = newAV ();
		609
		610	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		611	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		612	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		613	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		614
		615	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		616	}
		617
		618	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		619	}
		620	else
		621	{
		622	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		623	PUSHs (sv_result);
		624	}
		625	}
		626	#endif
		627	}
		628	else
		629	PUSHs (sv_result);
		630	break;
		631
		632	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	633	if (req->result > 0)
393	req->result = 0;	634	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	635	/* FALLTHROUGH */
395		636
396	default:	637	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
398	break;	639	break;
399	}	640	}
400		641
401	errno = req->errorno;	642	errno = req->errorno;
402		643
403	PUTBACK;	644	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	646	SPAGAIN;
406		647
		648	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		649	SvREFCNT_dec (sv_result);
		650	else
		651	sv_result_cache = sv_result;
		652
407	FREETMPS;	653	FREETMPS;
408	LEAVE;	654	LEAVE;
409		655
410	PUTBACK;	656	PUTBACK;
411	}	657	}
412		658
413	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
414	}	660	}
415		661
		662	static void
416	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
417	{	664	{
418	if (req->self)	665	if (req->self)
419	{	666	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
422	}	669	}
423		670
424	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
427		676
428	Safefree (req);	677	free (req);
429	}	678	}
430		679
		680	static void
431	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
432	{	682	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
436	return;	684	return;
437		685
438	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	687	grp->sv2 = 0;
440		688
441	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
442	}	690	}
443		691
444	#ifdef USE_SOCKETS_AS_HANDLES	692	static void ecb_cold
445	# define TO_SOCKET(x) (win32_get_osfhandle (x))	693	create_respipe (void)
446	#else	694	{
447	# define TO_SOCKET(x) (x)	695	if (s_epipe_renew (&respipe))
448	#endif	696	croak ("IO::AIO: unable to initialize result pipe");
		697	}
449		698
450	static void	699	static void
451	create_respipe (void)	700	poll_wait (void)
452	{	701	{
453	int old_readfd = respipe [0];
454
455	if (respipe [1] >= 0)
456	respipe_close (TO_SOCKET (respipe [1]));
457
458	#ifdef _WIN32
459	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
460	#else
461	if (pipe (respipe))
462	#endif
463	croak ("unable to initialize result pipe");
464
465	if (old_readfd >= 0)
466	{
467	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
468	croak ("unable to initialize result pipe(2)");
469
470	respipe_close (respipe [0]);
471	respipe [0] = old_readfd;
472	}
473
474	#ifdef _WIN32
475	int arg = 1;
476	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
477	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
478	#else
479	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
480	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
481	#endif
482	croak ("unable to initialize result pipe(3)");
483
484	respipe_osf [0] = TO_SOCKET (respipe [0]);
485	respipe_osf [1] = TO_SOCKET (respipe [1]);
486	}
487
488	static void poll_wait (void)
489	{
490	fd_set rfd;
491
492	while (eio_nreqs ())	702	while (eio_nreqs ())
493	{	703	{
494	int size;	704	int size;
495		705
496	X_LOCK (reslock);	706	X_LOCK (reslock);
…		…
500	if (size)	710	if (size)
501	return;	711	return;
502		712
503	etp_maybe_start_thread ();	713	etp_maybe_start_thread ();
504		714
505	FD_ZERO (&rfd);	715	s_epipe_wait (&respipe);
506	FD_SET (respipe [0], &rfd);
507
508	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
509	}	716	}
510	}	717	}
511		718
512	static int poll_cb (void)	719	static int
		720	poll_cb (void)
513	{	721	{
514	for (;;)	722	for (;;)
515	{	723	{
516	int res = eio_poll ();	724	int res = eio_poll ();
517		725
…		…
523		731
524	poll_wait ();	732	poll_wait ();
525	}	733	}
526	}	734	}
527		735
528	static void atfork_child (void)	736	static void ecb_cold
		737	reinit (void)
529	{	738	{
530	create_respipe ();	739	create_respipe ();
		740
		741	if (eio_init (want_poll, done_poll) < 0)
		742	croak ("IO::AIO: unable to initialise eio library");
531	}	743	}
		744
		745	/*****************************************************************************/
		746
		747	#if !_POSIX_MAPPED_FILES
		748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		749	# define munmap(addr,length) EIO_ENOSYS ()
		750	#endif
		751
		752	#if !_POSIX_MEMORY_PROTECTION
		753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		754	# define PROT_NONE 0
		755	# define PROT_WRITE 0
		756	# define MAP_PRIVATE 0
		757	# define MAP_SHARED 0
		758	# define MAP_FIXED 0
		759	#endif
		760
		761	#define MMAP_MAGIC PERL_MAGIC_ext
		762
		763	static int ecb_cold
		764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		765	{
		766	int old_errno = errno;
		767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		768	errno = old_errno;
		769
		770	mg->mg_obj = 0; /* just in case */
		771
		772	SvREADONLY_off (sv);
		773
		774	if (SvPVX (sv) != mg->mg_ptr)
		775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		776
		777	SvCUR_set (sv, 0);
		778	SvPVX (sv) = 0;
		779	SvOK_off (sv);
		780
		781	return 0;
		782	}
		783
		784	static MGVTBL mmap_vtbl = {
		785	0, 0, 0, 0, mmap_free
		786	};
		787
		788	/*****************************************************************************/
532		789
533	static SV *	790	static SV *
534	get_cb (SV *cb_sv)	791	get_cb (SV *cb_sv)
535	{	792	{
536	HV *st;	793	SvGETMAGIC (cb_sv);
537	GV *gvp;	794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		795	}
		796
		797	static aio_req ecb_noinline
		798	dreq (SV *callback)
		799	{
538	CV *cv;	800	SV *cb_cv;
		801	aio_req req;
		802	int req_pri = next_pri;
		803	next_pri = EIO_PRI_DEFAULT;
539		804
540	if (!SvOK (cb_sv))	805	cb_cv = get_cb (callback);
		806
		807	req = calloc (sizeof (*req), 1);
		808	if (!req)
		809	croak ("out of memory during eio_req allocation");
		810
		811	req->callback = SvREFCNT_inc (cb_cv);
		812	req->pri = req_pri;
		813
541	return 0;	814	return req;
542
543	cv = sv_2cv (cb_sv, &st, &gvp, 0);
544
545	if (!cv)
546	croak ("IO::AIO callback must be undef or a CODE reference");
547
548	return (SV *)cv;
549	}	815	}
550		816
551	#define dREQ \	817	#define dREQ \
552	SV *cb_cv; \	818	aio_req req = dreq (callback); \
553	aio_req req; \
554	int req_pri = next_pri; \
555	next_pri = EIO_PRI_DEFAULT; \
556	\
557	cb_cv = get_cb (callback); \
558	\
559	Newz (0, req, 1, eio_req); \
560	if (!req) \
561	croak ("out of memory during eio_req allocation"); \
562	\
563	req->callback = SvREFCNT_inc (cb_cv); \
564	req->pri = req_pri
565		819
566	#define REQ_SEND \	820	#define REQ_SEND \
567	PUTBACK; \	821	PUTBACK; \
568	req_submit (req); \	822	req_submit (req); \
569	SPAGAIN; \	823	SPAGAIN; \
570	\	824	\
571	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
572	XPUSHs (req_sv (req, AIO_REQ_KLASS));	826	XPUSHs (req_sv (req, aio_req_stash));
573		827
574	static int	828	ecb_inline void
575	extract_fd (SV *fh, int wr)	829	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
576	{	830	{
577	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	831	if (expect_false (SvROK (path)))
		832	{
		833	SV *rv = SvRV (path);
		834	SV *wdob;
578		835
579	if (fd < 0)	836	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
580	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");	837	{
		838	path = AvARRAY (rv)[1];
		839	wdob = AvARRAY (rv)[0];
581		840
582	return fd;	841	if (SvOK (wdob))
		842	{
		843	*wd = SvAIO_WD (wdob);
		844	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		845	}
		846	else
		847	*wd = EIO_INVALID_WD;
		848	}
		849	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		850	{
		851	*wd = (aio_wd)(long)SvIVX (rv);
		852	*wdsv = SvREFCNT_inc_NN (rv);
		853	*ptr = ".";
		854	return; /* path set to "." */
		855	}
		856	else
		857	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		858	}
		859
		860	*pathsv = newSVsv (path);
		861	*ptr = SvPVbyte_nolen (*pathsv);
583	}	862	}
		863
		864	static void ecb_noinline
		865	req_set_path1 (aio_req req, SV *path)
		866	{
		867	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		868	}
		869
		870	static void ecb_noinline
		871	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		872	{
		873	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		874
		875	switch (SvTYPE (rv))
		876	{
		877	case SVt_PVIO:
		878	case SVt_PVLV:
		879	case SVt_PVGV:
		880	req->type = type_fh;
		881	req->sv1 = newSVsv (fh_or_path);
		882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		883	break;
		884
		885	default:
		886	req->type = type_path;
		887	req_set_path1 (req, fh_or_path);
		888	break;
		889	}
		890	}
		891
		892	XS(boot_IO__AIO) ecb_cold;
584		893
585	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
586		895
587	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
588		897
…		…
590	{	899	{
591	static const struct {	900	static const struct {
592	const char *name;	901	const char *name;
593	IV iv;	902	IV iv;
594	} *civ, const_iv[] = {	903	} *civ, const_iv[] = {
595	# define const_iv(name, value) { # name, (IV) value },	904	# define const_niv(name, value) { # name, (IV) value },
		905	# define const_iv(name) { # name, (IV) name },
596	# define const_eio(name) { # name, (IV) EIO_ ## name },	906	# define const_eio(name) { # name, (IV) EIO_ ## name },
597	const_iv (EXDEV , EXDEV)	907
		908	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		909
598	const_iv (ENOSYS , ENOSYS)	910	const_iv (ENOSYS)
		911	const_iv (EXDEV)
		912	const_iv (EBADR)
		913
599	const_iv (O_RDONLY, O_RDONLY)	914	const_iv (O_RDONLY)
600	const_iv (O_WRONLY, O_WRONLY)	915	const_iv (O_WRONLY)
		916	const_iv (O_RDWR)
601	const_iv (O_CREAT , O_CREAT)	917	const_iv (O_CREAT)
602	const_iv (O_TRUNC , O_TRUNC)	918	const_iv (O_TRUNC)
603	#ifndef _WIN32	919	const_iv (O_EXCL)
		920	const_iv (O_APPEND)
		921
		922	const_iv (O_ASYNC)
		923	const_iv (O_DIRECT)
		924	const_iv (O_NOATIME)
		925
		926	const_iv (O_CLOEXEC)
		927	const_iv (O_NOCTTY)
		928	const_iv (O_NOFOLLOW)
		929	const_iv (O_NONBLOCK)
		930	const_iv (O_EXEC)
		931	const_iv (O_SEARCH)
		932	const_iv (O_DIRECTORY)
		933	const_iv (O_DSYNC)
		934	const_iv (O_RSYNC)
		935	const_iv (O_SYNC)
		936	const_iv (O_TTY_INIT)
		937
604	const_iv (S_IFIFO , S_IFIFO)	938	const_iv (S_IFIFO)
605	#endif	939	const_iv (S_IFCHR)
		940	const_iv (S_IFBLK)
		941	const_iv (S_IFLNK)
		942	const_iv (S_IFREG)
		943	const_iv (S_IFDIR)
		944	const_iv (S_IFWHT)
		945	const_iv (S_IFSOCK)
		946	const_iv (S_IFMT)
		947
606	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
607	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
608	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
609	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
610	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
611	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		954
		955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		960
		961	const_iv (ST_RDONLY)
		962	const_iv (ST_NOSUID)
		963	const_iv (ST_NODEV)
		964	const_iv (ST_NOEXEC)
		965	const_iv (ST_SYNCHRONOUS)
		966	const_iv (ST_MANDLOCK)
		967	const_iv (ST_WRITE)
		968	const_iv (ST_APPEND)
		969	const_iv (ST_IMMUTABLE)
		970	const_iv (ST_NOATIME)
		971	const_iv (ST_NODIRATIME)
		972	const_iv (ST_RELATIME)
		973
		974	const_iv (PROT_NONE)
		975	const_iv (PROT_EXEC)
		976	const_iv (PROT_READ)
		977	const_iv (PROT_WRITE)
		978
		979	/*const_iv (MAP_FIXED)*/
		980	const_iv (MAP_PRIVATE)
		981	const_iv (MAP_SHARED)
		982	const_iv (MAP_ANONYMOUS)
		983
		984	/* linuxish */
		985	const_iv (MAP_HUGETLB)
		986	const_iv (MAP_LOCKED)
		987	const_iv (MAP_NORESERVE)
		988	const_iv (MAP_POPULATE)
		989	const_iv (MAP_NONBLOCK)
		990
		991	const_iv (FIEMAP_FLAG_SYNC)
		992	const_iv (FIEMAP_FLAG_XATTR)
		993	const_iv (FIEMAP_FLAGS_COMPAT)
		994	const_iv (FIEMAP_EXTENT_LAST)
		995	const_iv (FIEMAP_EXTENT_UNKNOWN)
		996	const_iv (FIEMAP_EXTENT_DELALLOC)
		997	const_iv (FIEMAP_EXTENT_ENCODED)
		998	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		999	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1000	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1001	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1002	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1003	const_iv (FIEMAP_EXTENT_MERGED)
		1004	const_iv (FIEMAP_EXTENT_SHARED)
		1005
		1006	const_iv (SPLICE_F_MOVE)
		1007	const_iv (SPLICE_F_NONBLOCK)
		1008	const_iv (SPLICE_F_MORE)
		1009	const_iv (SPLICE_F_GIFT)
		1010
		1011	const_iv (SEEK_DATA)
		1012	const_iv (SEEK_HOLE)
		1013
		1014	/* libeio constants */
		1015	const_eio (SEEK_SET)
		1016	const_eio (SEEK_CUR)
		1017	const_eio (SEEK_END)
		1018
		1019	const_eio (MCL_FUTURE)
		1020	const_eio (MCL_CURRENT)
		1021
		1022	const_eio (MS_ASYNC)
		1023	const_eio (MS_INVALIDATE)
		1024	const_eio (MS_SYNC)
		1025
		1026	const_eio (MT_MODIFY)
612		1027
613	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1028	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
614	const_eio (SYNC_FILE_RANGE_WRITE)	1029	const_eio (SYNC_FILE_RANGE_WRITE)
615	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1031
		1032	const_eio (FALLOC_FL_KEEP_SIZE)
		1033	const_eio (FALLOC_FL_PUNCH_HOLE)
616		1034
617	const_eio (READDIR_DENTS)	1035	const_eio (READDIR_DENTS)
618	const_eio (READDIR_DIRS_FIRST)	1036	const_eio (READDIR_DIRS_FIRST)
619	const_eio (READDIR_STAT_ORDER)	1037	const_eio (READDIR_STAT_ORDER)
620	const_eio (READDIR_FOUND_UNKNOWN)	1038	const_eio (READDIR_FOUND_UNKNOWN)
…		…
628	const_eio (DT_LNK)	1046	const_eio (DT_LNK)
629	const_eio (DT_SOCK)	1047	const_eio (DT_SOCK)
630	const_eio (DT_WHT)	1048	const_eio (DT_WHT)
631	};	1049	};
632		1050
633	stash = gv_stashpv ("IO::AIO", 1);	1051	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1052	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1053	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1054	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
634		1055
635	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
636	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
637		1058
638	create_respipe ();	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
639		1060
640	if (eio_init (want_poll, done_poll) < 0)	1061	reinit ();
641	croak ("IO::AIO: unable to initialise eio library");
642
643	/* atfork child called in fifo order, so before eio's handler */
644	X_THREAD_ATFORK (0, 0, atfork_child);
645	}	1062	}
646		1063
647	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
648	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
649	PROTOTYPE: $	1070	PROTOTYPE: $
650	CODE:	1071	CODE:
651	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
652		1073
653	void	1074	void
…		…
655	PROTOTYPE: $	1076	PROTOTYPE: $
656	CODE:	1077	CODE:
657	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
658		1079
659	void	1080	void
660	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
661	PROTOTYPE: $	1082	PROTOTYPE: $
662	CODE:	1083	CODE:
663	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
664		1085
665	void	1086	void
666	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
667	PROTOTYPE: $	1088	PROTOTYPE: $
668	CODE:	1089	CODE:
669	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
670		1091
671	void	1092	void
672	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
673	PROTOTYPE: $	1094	PROTOTYPE: $
674	CODE:	1095	CODE:
675	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
676		1097
677	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
678	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
679	PROTOTYPE: $	1106	PROTOTYPE: $
680	CODE:	1107	CODE:
681	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
682		1109
683	void	1110	void
		1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1112	PPCODE:
		1113	{
		1114	dREQ;
		1115
		1116	req->type = EIO_WD_OPEN;
		1117	req_set_path1 (req, pathname);
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
684	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1124	PPCODE:
687	{	1125	{
688	dREQ;	1126	dREQ;
689		1127
690	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
691	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
692	req->ptr1 = SvPVbyte_nolen (req->sv1);
693	req->int1 = flags;	1130	req->int1 = flags;
694	req->int2 = mode;	1131	req->int2 = mode;
695		1132
696	REQ_SEND;	1133	REQ_SEND;
697	}	1134	}
698		1135
699	void	1136	void
700	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $;$
702	ALIAS:	1138	ALIAS:
703	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
704	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
705	PPCODE:	1142	PPCODE:
706	{	1143	{
707	int fd = extract_fd (fh, 0);	1144	int fd = s_fileno_croak (fh, 0);
708	dREQ;	1145	dREQ;
709		1146
710	req->type = ix;	1147	req->type = ix;
711	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
712	req->int1 = fd;	1149	req->int1 = fd;
713		1150
714	REQ_SEND (req);	1151	REQ_SEND;
715	}	1152	}
716		1153
717	void	1154	void
718	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
719	PROTOTYPE: $$$$;$
720	PPCODE:	1156	PPCODE:
721	{	1157	{
722	int fd = extract_fd (fh, 0);	1158	int fd = s_fileno_croak (fh, 0);
723	dREQ;	1159	dREQ;
724		1160
725	req->type = EIO_SYNC_FILE_RANGE;	1161	req->type = EIO_SYNC_FILE_RANGE;
726	req->sv1 = newSVsv (fh);	1162	req->sv1 = newSVsv (fh);
727	req->int1 = fd;	1163	req->int1 = fd;
728	req->offs = offset;	1164	req->offs = offset;
729	req->size = nbytes;	1165	req->size = nbytes;
730	req->int2 = flags;	1166	req->int2 = flags;
731		1167
732	REQ_SEND (req);	1168	REQ_SEND;
		1169	}
		1170
		1171	void
		1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1173	PPCODE:
		1174	{
		1175	int fd = s_fileno_croak (fh, 0);
		1176	dREQ;
		1177
		1178	req->type = EIO_FALLOCATE;
		1179	req->sv1 = newSVsv (fh);
		1180	req->int1 = fd;
		1181	req->int2 = mode;
		1182	req->offs = offset;
		1183	req->size = len;
		1184
		1185	REQ_SEND;
733	}	1186	}
734		1187
735	void	1188	void
736	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
737	PROTOTYPE: $;$
738	PPCODE:	1190	PPCODE:
739	{	1191	{
740	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */
741	int fd = extract_fd (fh, 0);	1193	int fd = s_fileno_croak (fh, 0);
742	dREQ;	1194	dREQ;
743		1195
744	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
745	{	1197	{
746	int pipefd [2];	1198	int pipefd [2];
747		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
748	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
749	|| close (pipefd [1]) < 0
750	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1206	#endif
		1207	|| close (pipefd [1]) < 0
		1208	)
751	abort (); /*D*/	1209	abort (); /*D*/
752		1210
753	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
754	}	1212	}
755		1213
756	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
757	req->int1 = close_pipe;	1215	req->int1 = close_fd;
758	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
759	req->int2 = fd;	1217	req->int2 = fd;
760		1218
761	REQ_SEND (req);	1219	REQ_SEND;
		1220	}
		1221
		1222	void
		1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1224	PPCODE:
		1225	{
		1226	int fd = s_fileno_croak (fh, 0);
		1227	dREQ;
		1228
		1229	req->type = EIO_SEEK;
		1230	req->sv1 = newSVsv (fh);
		1231	req->int1 = fd;
		1232	req->offs = SvVAL64 (offset);
		1233	req->int2 = whence;
		1234
		1235	REQ_SEND;
762	}	1236	}
763		1237
764	void	1238	void
765	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
766	ALIAS:	1240	ALIAS:
767	aio_read = EIO_READ	1241	aio_read = EIO_READ
768	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
769	PROTOTYPE: $$$$$;$
770	PPCODE:	1243	PPCODE:
771	{	1244	{
772	STRLEN svlen;	1245	STRLEN svlen;
773	int fd = extract_fd (fh, ix == EIO_WRITE);	1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
774	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
775	UV len = SvUV (length);	1248	UV len = SvUV (length);
776		1249
777	if (dataoffset < 0)	1250	if (dataoffset < 0)
778	dataoffset += svlen;	1251	dataoffset += svlen;
…		…
788	}	1261	}
789	else	1262	else
790	{	1263	{
791	/* read: check type and grow scalar as necessary */	1264	/* read: check type and grow scalar as necessary */
792	SvUPGRADE (data, SVt_PV);	1265	SvUPGRADE (data, SVt_PV);
		1266	if (SvLEN (data) >= SvCUR (data))
793	svptr = SvGROW (data, len + dataoffset + 1);	1267	svptr = SvGROW (data, len + dataoffset + 1);
		1268	else if (SvCUR (data) < len + dataoffset)
		1269	croak ("length + dataoffset outside of scalar, and cannot grow");
794	}	1270	}
795		1271
796	{	1272	{
797	dREQ;	1273	dREQ;
798		1274
…		…
814	REQ_SEND;	1290	REQ_SEND;
815	}	1291	}
816	}	1292	}
817		1293
818	void	1294	void
819	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
820	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
821	PPCODE:	1299	PPCODE:
822	{	1300	{
823	SV *data;
824	dREQ;	1301	dREQ;
825		1302
826	req->type = EIO_READLINK;	1303	req->type = ix;
827	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
828	req->ptr1 = SvPVbyte_nolen (req->sv1);
829		1305
830	REQ_SEND;	1306	REQ_SEND;
831	}	1307	}
832		1308
833	void	1309	void
834	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
835	PROTOTYPE: $$$$;$
836	PPCODE:	1311	PPCODE:
837	{	1312	{
838	int ifd = extract_fd (in_fh , 0);	1313	int ifd = s_fileno_croak (in_fh , 0);
839	int ofd = extract_fd (out_fh, 0);	1314	int ofd = s_fileno_croak (out_fh, 1);
840	dREQ;	1315	dREQ;
841		1316
842	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
843	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
844	req->int1 = ofd;	1319	req->int1 = ofd;
…		…
850	REQ_SEND;	1325	REQ_SEND;
851	}	1326	}
852		1327
853	void	1328	void
854	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
855	PROTOTYPE: $$$;$
856	PPCODE:	1330	PPCODE:
857	{	1331	{
858	int fd = extract_fd (fh, 0);	1332	int fd = s_fileno_croak (fh, 0);
859	dREQ;	1333	dREQ;
860		1334
861	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
862	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
863	req->int1 = fd;	1337	req->int1 = fd;
…		…
868	}	1342	}
869		1343
870	void	1344	void
871	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
872	ALIAS:	1346	ALIAS:
873	aio_stat = EIO_STAT	1347	aio_stat = EIO_STAT
874	aio_lstat = EIO_LSTAT	1348	aio_lstat = EIO_LSTAT
		1349	aio_statvfs = EIO_STATVFS
875	PPCODE:	1350	PPCODE:
876	{	1351	{
877	dREQ;	1352	dREQ;
878		1353
879	req->sv1 = newSVsv (fh_or_path);	1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
880
881	if (SvPOK (req->sv1))
882	{
883	req->type = ix;
884	req->ptr1 = SvPVbyte_nolen (req->sv1);
885	}
886	else
887	{
888	req->type = EIO_FSTAT;
889	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
890	}
891		1355
892	REQ_SEND;	1356	REQ_SEND;
893	}	1357	}
		1358
		1359	UV
		1360	major (UV dev)
		1361	ALIAS:
		1362	minor = 1
		1363	CODE:
		1364	RETVAL = ix ? major (dev) : minor (dev);
		1365	OUTPUT:
		1366	RETVAL
		1367
		1368	UV
		1369	makedev (UV maj, UV min)
		1370	CODE:
		1371	RETVAL = makedev (maj, min);
		1372	OUTPUT:
		1373	RETVAL
894		1374
895	void	1375	void
896	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
897	PPCODE:	1377	PPCODE:
898	{	1378	{
899	dREQ;	1379	dREQ;
900		1380
901	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
902	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
903	req->sv1 = newSVsv (fh_or_path);	1383	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
904
905	if (SvPOK (req->sv1))
906	{
907	req->type = EIO_UTIME;
908	req->ptr1 = SvPVbyte_nolen (req->sv1);
909	}
910	else
911	{
912	req->type = EIO_FUTIME;
913	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
914	}
915		1384
916	REQ_SEND;	1385	REQ_SEND;
917	}	1386	}
918		1387
919	void	1388	void
920	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
921	PPCODE:	1390	PPCODE:
922	{	1391	{
923	dREQ;	1392	dREQ;
924		1393
925	req->sv1 = newSVsv (fh_or_path);
926	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
927		1395	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
928	if (SvPOK (req->sv1))
929	{
930	req->type = EIO_TRUNCATE;
931	req->ptr1 = SvPVbyte_nolen (req->sv1);
932	}
933	else
934	{
935	req->type = EIO_FTRUNCATE;
936	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
937	}
938		1396
939	REQ_SEND;	1397	REQ_SEND;
940	}	1398	}
941		1399
942	void	1400	void
943	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1401	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
944	ALIAS:
945	aio_chmod = EIO_CHMOD
946	aio_mkdir = EIO_MKDIR
947	PPCODE:	1402	PPCODE:
948	{	1403	{
949	dREQ;	1404	dREQ;
950		1405
951	req->int2 = mode;	1406	req->int2 = mode;
952	req->sv1 = newSVsv (fh_or_path);	1407	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
953
954	if (SvPOK (req->sv1))
955	{
956	req->type = ix;
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958	}
959	else
960	{
961	req->type = EIO_FCHMOD;
962	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
963	}
964		1408
965	REQ_SEND;	1409	REQ_SEND;
966	}	1410	}
967		1411
968	void	1412	void
…		…
971	{	1415	{
972	dREQ;	1416	dREQ;
973		1417
974	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
975	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
976	req->sv1 = newSVsv (fh_or_path);	1420	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
977
978	if (SvPOK (req->sv1))
979	{
980	req->type = EIO_CHOWN;
981	req->ptr1 = SvPVbyte_nolen (req->sv1);
982	}
983	else
984	{
985	req->type = EIO_FCHOWN;
986	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
987	}
988		1421
989	REQ_SEND;	1422	REQ_SEND;
990	}	1423	}
991		1424
992	void	1425	void
…		…
994	PPCODE:	1427	PPCODE:
995	{	1428	{
996	dREQ;	1429	dREQ;
997		1430
998	req->type = EIO_READDIR;	1431	req->type = EIO_READDIR;
999	req->sv1 = newSVsv (pathname);
1000	req->ptr1 = SvPVbyte_nolen (req->sv1);
1001	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1432	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1002		1433
1003	if (flags & EIO_READDIR_DENTS)	1434	if (flags & EIO_READDIR_DENTS)
1004	req->int1 |= EIO_READDIR_CUSTOM2;	1435	req->int1 |= EIO_READDIR_CUSTOM2;
1005		1436
		1437	req_set_path1 (req, pathname);
		1438
1006	REQ_SEND;	1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
		1448	req->type = EIO_MKDIR;
		1449	req->int2 = mode;
		1450	req_set_path1 (req, pathname);
		1451
		1452	REQ_SEND;
1007	}	1453	}
1008		1454
1009	void	1455	void
1010	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1456	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1011	ALIAS:	1457	ALIAS:
…		…
1015	PPCODE:	1461	PPCODE:
1016	{	1462	{
1017	dREQ;	1463	dREQ;
1018		1464
1019	req->type = ix;	1465	req->type = ix;
1020	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
1021	req->ptr1 = SvPVbyte_nolen (req->sv1);
1022		1467
1023	REQ_SEND;	1468	REQ_SEND;
1024	}	1469	}
1025		1470
1026	void	1471	void
…		…
1029	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
1030	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
1031	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
1032	PPCODE:	1477	PPCODE:
1033	{	1478	{
		1479	eio_wd wd2 = 0;
1034	dREQ;	1480	dREQ;
1035		1481
1036	req->type = ix;	1482	req->type = ix;
1037	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
1038	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1039	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
1040	req->ptr2 = SvPVbyte_nolen (req->sv2);
1041		1486
1042	REQ_SEND;	1487	REQ_SEND;
1043	}	1488	}
1044		1489
1045	void	1490	void
…		…
1047	PPCODE:	1492	PPCODE:
1048	{	1493	{
1049	dREQ;	1494	dREQ;
1050		1495
1051	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
1052	req->sv1 = newSVsv (pathname);
1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
1054	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
1055	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
1056		1500
1057	REQ_SEND;	1501	REQ_SEND;
1058	}	1502	}
1059		1503
1060	void	1504	void
		1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1506	ALIAS:
		1507	aio_mtouch = EIO_MTOUCH
		1508	aio_msync = EIO_MSYNC
		1509	PPCODE:
		1510	{
		1511	STRLEN svlen;
		1512	char *svptr = SvPVbyte (data, svlen);
		1513	UV len = SvUV (length);
		1514
		1515	if (offset < 0)
		1516	offset += svlen;
		1517
		1518	if (offset < 0 || offset > svlen)
		1519	croak ("offset outside of scalar");
		1520
		1521	if (!SvOK (length) || len + offset > svlen)
		1522	len = svlen - offset;
		1523
		1524	{
		1525	dREQ;
		1526
		1527	req->type = ix;
		1528	req->sv2 = SvREFCNT_inc (data);
		1529	req->ptr2 = (char *)svptr + offset;
		1530	req->size = len;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535	}
		1536
		1537	void
		1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1539	PPCODE:
		1540	{
		1541	STRLEN svlen;
		1542	char *svptr = SvPVbyte (data, svlen);
		1543	UV len = SvUV (length);
		1544
		1545	if (offset < 0)
		1546	offset += svlen;
		1547
		1548	if (offset < 0 || offset > svlen)
		1549	croak ("offset outside of scalar");
		1550
		1551	if (!SvOK (length) || len + offset > svlen)
		1552	len = svlen - offset;
		1553
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MLOCK;
		1558	req->sv2 = SvREFCNT_inc (data);
		1559	req->ptr2 = (char *)svptr + offset;
		1560	req->size = len;
		1561
		1562	REQ_SEND;
		1563	}
		1564	}
		1565
		1566	void
		1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1568	PPCODE:
		1569	{
		1570	dREQ;
		1571
		1572	req->type = EIO_MLOCKALL;
		1573	req->int1 = flags;
		1574
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1580	PPCODE:
		1581	{
		1582	int fd = s_fileno_croak (fh, 0);
		1583	dREQ;
		1584
		1585	req->type = EIO_CUSTOM;
		1586	req->sv1 = newSVsv (fh);
		1587	req->int1 = fd;
		1588
		1589	req->feed = fiemap;
		1590	#if HAVE_FIEMAP
		1591	/* keep our fingers crossed that the next two types are 64 bit */
		1592	req->offs = start;
		1593	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1594	req->int2 = flags;
		1595	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1596	#endif
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
1061	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
1062	PPCODE:	1603	PPCODE:
1063	{	1604	{
1064	dREQ;	1605	dREQ;
1065		1606
…		…
1069	REQ_SEND;	1610	REQ_SEND;
1070	}	1611	}
1071		1612
1072	void	1613	void
1073	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
1074	PROTOTYPE: ;$
1075	PPCODE:	1615	PPCODE:
1076	{	1616	{
1077	dREQ;	1617	dREQ;
1078		1618
1079	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
1080		1620
1081	req_submit (req);	1621	req_submit (req);
1082	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1622	XPUSHs (req_sv (req, aio_grp_stash));
1083	}	1623	}
1084		1624
1085	void	1625	void
1086	aio_nop (SV *callback=&PL_sv_undef)	1626	aio_nop (SV *callback=&PL_sv_undef)
1087	ALIAS:	1627	ALIAS:
…		…
1096	REQ_SEND;	1636	REQ_SEND;
1097	}	1637	}
1098		1638
1099	int	1639	int
1100	aioreq_pri (int pri = 0)	1640	aioreq_pri (int pri = 0)
1101	PROTOTYPE: ;$
1102	CODE:	1641	CODE:
1103	RETVAL = next_pri;	1642	RETVAL = next_pri;
1104	if (items > 0)	1643	if (items > 0)
1105	{	1644	{
1106	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1645	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1118	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1657	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1119	next_pri = nice;	1658	next_pri = nice;
1120		1659
1121	void	1660	void
1122	flush ()	1661	flush ()
1123	PROTOTYPE:
1124	CODE:	1662	CODE:
1125	while (eio_nreqs ())	1663	while (eio_nreqs ())
1126	{	1664	{
1127	poll_wait ();	1665	poll_wait ();
1128	poll_cb ();	1666	poll_cb ();
1129	}	1667	}
1130		1668
1131	int	1669	int
1132	poll()	1670	poll ()
1133	PROTOTYPE:
1134	CODE:	1671	CODE:
1135	poll_wait ();	1672	poll_wait ();
1136	RETVAL = poll_cb ();	1673	RETVAL = poll_cb ();
1137	OUTPUT:	1674	OUTPUT:
1138	RETVAL	1675	RETVAL
1139		1676
1140	int	1677	int
1141	poll_fileno()	1678	poll_fileno ()
1142	PROTOTYPE:
1143	CODE:	1679	CODE:
1144	RETVAL = respipe [0];	1680	RETVAL = s_epipe_fd (&respipe);
1145	OUTPUT:	1681	OUTPUT:
1146	RETVAL	1682	RETVAL
1147		1683
1148	int	1684	int
1149	poll_cb(...)	1685	poll_cb (...)
1150	PROTOTYPE:	1686	PROTOTYPE:
1151	CODE:	1687	CODE:
1152	RETVAL = poll_cb ();	1688	RETVAL = poll_cb ();
1153	OUTPUT:	1689	OUTPUT:
1154	RETVAL	1690	RETVAL
1155		1691
1156	void	1692	void
1157	poll_wait()	1693	poll_wait ()
1158	PROTOTYPE:
1159	CODE:	1694	CODE:
1160	poll_wait ();	1695	poll_wait ();
1161		1696
1162	int	1697	int
1163	nreqs()	1698	nreqs ()
1164	PROTOTYPE:
1165	CODE:	1699	CODE:
1166	RETVAL = eio_nreqs ();	1700	RETVAL = eio_nreqs ();
1167	OUTPUT:	1701	OUTPUT:
1168	RETVAL	1702	RETVAL
1169		1703
1170	int	1704	int
1171	nready()	1705	nready ()
1172	PROTOTYPE:
1173	CODE:	1706	CODE:
1174	RETVAL = eio_nready ();	1707	RETVAL = eio_nready ();
1175	OUTPUT:	1708	OUTPUT:
1176	RETVAL	1709	RETVAL
1177		1710
1178	int	1711	int
1179	npending()	1712	npending ()
1180	PROTOTYPE:
1181	CODE:	1713	CODE:
1182	RETVAL = eio_npending ();	1714	RETVAL = eio_npending ();
1183	OUTPUT:	1715	OUTPUT:
1184	RETVAL	1716	RETVAL
1185		1717
1186	int	1718	int
1187	nthreads()	1719	nthreads ()
1188	PROTOTYPE:
1189	CODE:	1720	CODE:
1190	RETVAL = eio_nthreads ();	1721	RETVAL = eio_nthreads ();
1191	OUTPUT:	1722	OUTPUT:
1192	RETVAL	1723	RETVAL
1193		1724
1194	int	1725	int
1195	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1726	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1196	PROTOTYPE: $$$$
1197	CODE:	1727	CODE:
1198	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1199	RETVAL = posix_fadvise (fh, offset, length, advice);	1728	RETVAL = posix_fadvise (fh, offset, length, advice);
1200	#else
1201	RETVAL = errno = ENOSYS;
1202	#endif
1203	OUTPUT:	1729	OUTPUT:
1204	RETVAL	1730	RETVAL
1205		1731
1206	ssize_t	1732	IV
1207	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1733	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1208	PROTOTYPE: $$$$
1209	CODE:	1734	CODE:
1210	eio_sendfile_sync (ofh, ifh, offset, count);	1735	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1736	OUTPUT:
		1737	RETVAL
		1738
		1739	void
		1740	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1741	PPCODE:
		1742	sv_unmagic (scalar, MMAP_MAGIC);
		1743	{
		1744	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1745	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1746	if (addr == (void *)-1)
		1747	XSRETURN_NO;
		1748
		1749	sv_force_normal (scalar);
		1750
		1751	/* we store the length in mg_obj, as namlen is I32 :/ */
		1752	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1753	->mg_obj = (SV *)length;
		1754
		1755	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1756
		1757	if (!(prot & PROT_WRITE))
		1758	SvREADONLY_on (scalar);
		1759
		1760	if (SvLEN (scalar))
		1761	Safefree (SvPVX (scalar));
		1762
		1763	SvPVX (scalar) = (char *)addr;
		1764	SvCUR_set (scalar, length);
		1765	SvLEN_set (scalar, 0);
		1766	SvPOK_only (scalar);
		1767
		1768	XSRETURN_YES;
		1769	}
		1770
		1771	void
		1772	munmap (SV *scalar)
		1773	CODE:
		1774	sv_unmagic (scalar, MMAP_MAGIC);
		1775
		1776	int
		1777	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1778	ALIAS:
		1779	mprotect = 1
		1780	CODE:
		1781	{
		1782	STRLEN svlen;
		1783	void *addr = SvPVbyte (scalar, svlen);
		1784	size_t len = SvUV (length);
		1785
		1786	if (offset < 0)
		1787	offset += svlen;
		1788
		1789	if (offset < 0 || offset > svlen)
		1790	croak ("offset outside of scalar");
		1791
		1792	if (!SvOK (length) || len + offset > svlen)
		1793	len = svlen - offset;
		1794
		1795	addr = (void *)(((intptr_t)addr) + offset);
		1796	eio_page_align (&addr, &len);
		1797
		1798	switch (ix)
		1799	{
		1800	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1801	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1802	}
		1803	}
		1804	OUTPUT:
		1805	RETVAL
		1806
		1807	int
		1808	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1809	CODE:
		1810	{
		1811	STRLEN svlen;
		1812	void *addr = SvPVbyte (scalar, svlen);
		1813	size_t len = SvUV (length);
		1814
		1815	if (offset < 0)
		1816	offset += svlen;
		1817
		1818	if (offset < 0 || offset > svlen)
		1819	croak ("offset outside of scalar");
		1820
		1821	if (!SvOK (length) || len + offset > svlen)
		1822	len = svlen - offset;
		1823
		1824	addr = (void *)(((intptr_t)addr) + offset);
		1825	eio_page_align (&addr, &len);
		1826	#if _POSIX_MEMLOCK_RANGE
		1827	RETVAL = munlock (addr, len);
		1828	#else
		1829	RETVAL = EIO_ENOSYS ();
		1830	#endif
		1831	}
		1832	OUTPUT:
		1833	RETVAL
		1834
		1835	int
		1836	munlockall ()
		1837	CODE:
		1838	#if _POSIX_MEMLOCK
		1839	munlockall ();
		1840	#else
		1841	RETVAL = EIO_ENOSYS ();
		1842	#endif
		1843	OUTPUT:
		1844	RETVAL
		1845
		1846	int
		1847	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1848	CODE:
		1849	{
		1850	#if HAVE_LINUX_SPLICE
		1851	loff_t off_in_, off_out_;
		1852	RETVAL = splice (
		1853	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1854	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1855	length, flags
		1856	);
		1857	#else
		1858	RETVAL = EIO_ENOSYS ();
		1859	#endif
		1860	}
		1861	OUTPUT:
		1862	RETVAL
		1863
		1864	int
		1865	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1866	CODE:
		1867	#if HAVE_LINUX_SPLICE
		1868	RETVAL = tee (rfh, wfh, length, flags);
		1869	#else
		1870	RETVAL = EIO_ENOSYS ();
		1871	#endif
		1872	OUTPUT:
		1873	RETVAL
1211		1874
1212	void _on_next_submit (SV *cb)	1875	void _on_next_submit (SV *cb)
1213	CODE:	1876	CODE:
1214	SvREFCNT_dec (on_next_submit);	1877	SvREFCNT_dec (on_next_submit);
1215	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1878	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1216		1879
1217	PROTOTYPES: DISABLE	1880	PROTOTYPES: DISABLE
1218		1881
		1882	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1883
		1884	BOOT:
		1885	{
		1886	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1887	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1888	}
		1889
		1890	void
		1891	DESTROY (SV *self)
		1892	CODE:
		1893	{
		1894	aio_wd wd = SvAIO_WD (self);
		1895	#if HAVE_AT
		1896	{
		1897	SV *callback = &PL_sv_undef;
		1898	dREQ; /* clobbers next_pri :/ */
		1899	next_pri = req->pri; /* restore next_pri */
		1900	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1901	req->type = EIO_WD_CLOSE;
		1902	req->wd = wd;
		1903	REQ_SEND;
		1904	}
		1905	#else
		1906	eio_wd_close_sync (wd);
		1907	#endif
		1908	}
		1909
1219	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1910	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1220		1911
1221	void	1912	void
1222	cancel (aio_req_ornot req)	1913	cancel (aio_req_ornot req)
1223	CODE:	1914	CODE:
…		…
1230	if (GIMME_V != G_VOID)	1921	if (GIMME_V != G_VOID)
1231	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1922	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1232		1923
1233	if (items > 1)	1924	if (items > 1)
1234	{	1925	{
1235	SV *cb_cv = get_cb (callback);	1926	SV *cb_cv =get_cb (callback);
1236		1927
1237	SvREFCNT_dec (req->callback);	1928	SvREFCNT_dec (req->callback);
1238	req->callback = SvREFCNT_inc (cb_cv);	1929	req->callback = SvREFCNT_inc (cb_cv);
1239	}	1930	}
1240	}	1931	}

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