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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.152 by root, Tue Jul 14 00:32:27 2009 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		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
20	/* perl namespace pollution */	33	/* perl namespace pollution */
21	#undef VERSION	34	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		35
72	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	38	#undef readdir
75	#undef opendir	39	#undef opendir
76	#undef closedir	40	#undef closedir
77		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
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
79		78
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	79	#else
86	# define VAL64 NV	80
87	# define SvVAL64 SvNV	81	#include <sys/time.h>
88	# 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
89	#endif	89	#endif
90		90
91	/*****************************************************************************/	91	/*****************************************************************************/
92		92
93	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
101		101
102	/*****************************************************************************/	102	/*****************************************************************************/
103		103
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
108		107
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		109
112	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
113	SV *callback; \	111	SV *callback; \
114	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
115	STRLEN stroffset; \	114	STRLEN stroffset; \
116	SV *self;	115	SV *self;
117		116
118	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
119		118
		119	#include "libeio/config.h"
120	#include "libeio/eio.h"	120	#include "libeio/eio.h"
121
122	#ifndef POSIX_FADV_NORMAL
123	# define POSIX_FADV_NORMAL 0
124	# define NO_FADVISE 1
125	#endif
126
127	#ifndef POSIX_FADV_SEQUENTIAL
128	# define POSIX_FADV_SEQUENTIAL 0
129	#endif
130
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138
139	#ifndef POSIX_FADV_WILLNEED
140	# define POSIX_FADV_WILLNEED 0
141	#endif
142
143	#ifndef POSIX_FADV_DONTNEED
144	# define POSIX_FADV_DONTNEED 0
145	#endif
146		121
147	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
151		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 72 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 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_mapped_extents)
		200	break; /* if file has no segments, we are done */
		201
		202	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		203	break; /* autosizing successful, we are done */
		204
		205	fiemap->fm_flags = req->int2;
		206	fiemap->fm_extent_count = 0;
		207
		208	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		209	return;
		210
		211	count = fiemap->fm_mapped_extents;
		212
		213	free (fiemap);
		214	}
		215
		216	req->result = 0;
		217
		218	#else
		219	errno = ENOSYS;
		220	#endif
		221	}
		222
		223	/*****************************************************************************/
		224
152	enum {	225	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	226	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	227	};
155		228
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	229	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	230	typedef eio_req *aio_req_ornot;
		231	typedef eio_wd aio_wd;
160		232
161	static SV *on_next_submit;	233	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	234	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	235	static int max_outstanding;
164		236
165	static int respipe_osf [2], respipe [2] = { -1, -1 };	237	static s_epipe respipe;
166		238
167	static void req_destroy (aio_req req);	239	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	240	static void req_cancel (aio_req req);
169		241
170	static void want_poll (void)	242	static void
		243	want_poll (void)
171	{	244	{
172	/* write a dummy byte to the pipe so fh becomes ready */	245	/* write a dummy byte to the pipe so fh becomes ready */
173	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	246	s_epipe_signal (&respipe);
174	}	247	}
175		248
176	static void done_poll (void)	249	static void
		250	done_poll (void)
177	{	251	{
178	/* read any signals sent by the worker threads */	252	/* read any signals sent by the worker threads */
179	char buf [4];	253	s_epipe_drain (&respipe);
180	while (respipe_read (respipe [0], buf, 4) == 4)
181	;
182	}	254	}
183		255
184	/* must be called at most once */	256	/* must be called at most once */
185	static SV *req_sv (aio_req req, const char *klass)	257	static SV *
		258	req_sv (aio_req req, HV *stash)
186	{	259	{
187	if (!req->self)	260	if (!req->self)
188	{	261	{
189	req->self = (SV *)newHV ();	262	req->self = (SV *)newHV ();
190	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	263	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
191	}	264	}
192		265
193	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	266	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
194	}	267	}
195		268
196	static aio_req SvAIO_REQ (SV *sv)	269	static SV *
		270	newSVaio_wd (aio_wd wd)
		271	{
		272	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		273	}
		274
		275	static aio_req
		276	SvAIO_REQ (SV *sv)
197	{	277	{
198	MAGIC *mg;	278	MAGIC *mg;
199		279
200	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	280	if (!SvROK (sv)
		281	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		282	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		283	&& SvSTASH (SvRV (sv)) != aio_req_stash
		284	&& !sv_derived_from (sv, "IO::AIO::REQ")))
201	croak ("object of class " AIO_REQ_KLASS " expected");	285	croak ("object of class IO::AIO::REQ expected");
202		286
203	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	287	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
204		288
205	return mg ? (aio_req)mg->mg_ptr : 0;	289	return mg ? (aio_req)mg->mg_ptr : 0;
206	}	290	}
207		291
		292	static aio_wd
		293	SvAIO_WD (SV *sv)
		294	{
		295	if (!SvROK (sv)
		296	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		297	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		298	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		299
		300	return (aio_wd)(long)SvIVX (SvRV (sv));
		301	}
		302
		303	static void
208	static void aio_grp_feed (aio_req grp)	304	aio_grp_feed (aio_req grp)
209	{	305	{
210	if (grp->sv2 && SvOK (grp->sv2))	306	if (grp->sv2 && SvOK (grp->sv2))
211	{	307	{
212	dSP;	308	dSP;
213		309
214	ENTER;	310	ENTER;
215	SAVETMPS;	311	SAVETMPS;
216	PUSHMARK (SP);	312	PUSHMARK (SP);
217	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	313	XPUSHs (req_sv (grp, aio_grp_stash));
218	PUTBACK;	314	PUTBACK;
219	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	315	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
220	SPAGAIN;	316	SPAGAIN;
221	FREETMPS;	317	FREETMPS;
222	LEAVE;	318	LEAVE;
223	}	319	}
224	}	320	}
225		321
		322	static void
226	static void req_submit (eio_req *req)	323	req_submit (eio_req *req)
227	{	324	{
228	eio_submit (req);	325	eio_submit (req);
229		326
230	if (expect_false (on_next_submit))	327	if (expect_false (on_next_submit))
231	{	328	{
…		…
238	PUTBACK;	335	PUTBACK;
239	call_sv (cb, G_DISCARD | G_EVAL);	336	call_sv (cb, G_DISCARD | G_EVAL);
240	}	337	}
241	}	338	}
242		339
		340	static int
243	static int req_invoke (eio_req *req)	341	req_invoke (eio_req *req)
244	{	342	{
245	dSP;
246
247	if (req->flags & FLAG_SV2_RO_OFF)	343	if (req->flags & FLAG_SV2_RO_OFF)
248	SvREADONLY_off (req->sv2);	344	SvREADONLY_off (req->sv2);
249		345
250	if (!EIO_CANCELLED (req) && req->callback)	346	if (!EIO_CANCELLED (req) && req->callback)
251	{	347	{
		348	dSP;
		349	static SV *sv_result_cache; /* caches the result integer SV */
		350	SV *sv_result;
		351
252	ENTER;	352	ENTER;
253	SAVETMPS;	353	SAVETMPS;
254	PUSHMARK (SP);	354	PUSHMARK (SP);
255	EXTEND (SP, 1);	355	EXTEND (SP, 1);
256		356
		357	/* do not recreate the result IV from scratch each time */
		358	if (expect_true (sv_result_cache))
		359	{
		360	sv_result = sv_result_cache; sv_result_cache = 0;
		361	SvIV_set (sv_result, req->result);
		362	SvIOK_only (sv_result);
		363	}
		364	else
		365	{
		366	sv_result = newSViv (req->result);
		367	SvREADONLY_on (sv_result);
		368	}
		369
257	switch (req->type)	370	switch (req->type)
258	{	371	{
		372	case EIO_WD_OPEN:
		373	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		374	break;
		375
259	case EIO_READDIR:	376	case EIO_READDIR:
260	{	377	{
261	SV *rv = &PL_sv_undef;	378	SV *rv = &PL_sv_undef;
262		379
263	if (req->result >= 0)	380	if (req->result >= 0)
…		…
328	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	445	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
329	char sym [64];	446	char sym [64];
330	int symlen;	447	int symlen;
331		448
332	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	449	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
333	gv_init (gv, stash, sym, symlen, 0);	450	gv_init (gv, aio_stash, sym, symlen, 0);
334		451
335	symlen = snprintf (	452	symlen = snprintf (
336	sym,	453	sym,
337	sizeof (sym),	454	sizeof (sym),
338	"%s&=%d",	455	"%s&=%d",
…		…
346		463
347	PUSHs (fh);	464	PUSHs (fh);
348	}	465	}
349	break;	466	break;
350		467
		468	case EIO_STATVFS:
		469	case EIO_FSTATVFS:
		470	{
		471	SV *rv = &PL_sv_undef;
		472
		473	#ifndef _WIN32
		474	if (req->result >= 0)
		475	{
		476	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		477	HV *hv = newHV ();
		478
		479	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		480
		481	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		482	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		483	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		484	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		485	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		486	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		487	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		488	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		489	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		490	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		491	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		492	}
		493	#endif
		494
		495	PUSHs (rv);
		496	}
		497
		498	break;
		499
351	case EIO_GROUP:	500	case EIO_GROUP:
352	req->int1 = 2; /* mark group as finished */	501	req->int1 = 2; /* mark group as finished */
353		502
354	if (req->sv1)	503	if (req->sv1)
355	{	504	{
…		…
365	case EIO_NOP:	514	case EIO_NOP:
366	case EIO_BUSY:	515	case EIO_BUSY:
367	break;	516	break;
368		517
369	case EIO_READLINK:	518	case EIO_READLINK:
		519	case EIO_REALPATH:
370	if (req->result > 0)	520	if (req->result > 0)
371	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	521	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
372	break;	522	break;
373		523
374	case EIO_STAT:	524	case EIO_STAT:
375	case EIO_LSTAT:	525	case EIO_LSTAT:
376	case EIO_FSTAT:	526	case EIO_FSTAT:
377	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	527	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		528
378	PL_laststatval = req->result;	529	if (!(PL_laststatval = req->result))
		530	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
379	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	531	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
380	PUSHs (sv_2mortal (newSViv (req->result)));	532
		533	PUSHs (sv_result);
		534	break;
		535
		536	case EIO_SEEK:
		537	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
381	break;	538	break;
382		539
383	case EIO_READ:	540	case EIO_READ:
384	{	541	{
385	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	542	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
386	*SvEND (req->sv2) = 0;	543	*SvEND (req->sv2) = 0;
387	SvPOK_only (req->sv2);	544	SvPOK_only (req->sv2);
388	SvSETMAGIC (req->sv2);	545	SvSETMAGIC (req->sv2);
389	PUSHs (sv_2mortal (newSViv (req->result)));	546	PUSHs (sv_result);
390	}	547	}
391	break;	548	break;
392		549
393	case EIO_DUP2:	550	case EIO_CUSTOM:
		551	if (req->feed == fiemap)
		552	{
		553	#if HAVE_FIEMAP
		554	if (!req->result)
		555	{
		556	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		557
		558	if (fiemap->fm_extent_count)
		559	{
		560	AV *av = newAV ();
		561	int i;
		562
		563	while (fiemap->fm_mapped_extents)
		564	{
		565	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		566	AV *ext_av = newAV ();
		567
		568	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		569	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		570	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		571	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		572
		573	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		574	}
		575
		576	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		577	}
		578	else
		579	{
		580	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		581	PUSHs (sv_result);
		582	}
		583	}
		584	#endif
		585	}
		586	else
		587	PUSHs (sv_result);
		588	break;
		589
		590	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
394	if (req->result > 0)	591	if (req->result > 0)
395	req->result = 0;	592	SvIV_set (sv_result, 0);
396	/* FALLTHROUGH */	593	/* FALLTHROUGH */
397		594
398	default:	595	default:
399	PUSHs (sv_2mortal (newSViv (req->result)));	596	PUSHs (sv_result);
400	break;	597	break;
401	}	598	}
402		599
403	errno = req->errorno;	600	errno = req->errorno;
404		601
405	PUTBACK;	602	PUTBACK;
406	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	603	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
407	SPAGAIN;	604	SPAGAIN;
408		605
		606	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		607	SvREFCNT_dec (sv_result);
		608	else
		609	sv_result_cache = sv_result;
		610
409	FREETMPS;	611	FREETMPS;
410	LEAVE;	612	LEAVE;
411		613
412	PUTBACK;	614	PUTBACK;
413	}	615	}
414		616
415	return !!SvTRUE (ERRSV);	617	return !!SvTRUE (ERRSV);
416	}	618	}
417		619
		620	static void
418	static void req_destroy (aio_req req)	621	req_destroy (aio_req req)
419	{	622	{
420	if (req->self)	623	if (req->self)
421	{	624	{
422	sv_unmagic (req->self, PERL_MAGIC_ext);	625	sv_unmagic (req->self, PERL_MAGIC_ext);
423	SvREFCNT_dec (req->self);	626	SvREFCNT_dec (req->self);
424	}	627	}
425		628
426	SvREFCNT_dec (req->sv1);	629	SvREFCNT_dec (req->sv1);
427	SvREFCNT_dec (req->sv2);	630	SvREFCNT_dec (req->sv2);
		631	SvREFCNT_dec (req->sv3);
		632	SvREFCNT_dec (req->sv4);
428	SvREFCNT_dec (req->callback);	633	SvREFCNT_dec (req->callback);
429		634
430	Safefree (req);	635	free (req);
431	}	636	}
432		637
		638	static void
433	static void req_cancel_subs (aio_req grp)	639	req_cancel_subs (aio_req grp)
434	{	640	{
435	aio_req sub;
436
437	if (grp->type != EIO_GROUP)	641	if (grp->type != EIO_GROUP)
438	return;	642	return;
439		643
440	SvREFCNT_dec (grp->sv2);	644	SvREFCNT_dec (grp->sv2);
441	grp->sv2 = 0;	645	grp->sv2 = 0;
442		646
443	eio_grp_cancel (grp);	647	eio_grp_cancel (grp);
444	}	648	}
445		649
446	#ifdef USE_SOCKETS_AS_HANDLES	650	static void ecb_cold
447	# define TO_SOCKET(x) (win32_get_osfhandle (x))	651	create_respipe (void)
448	#else	652	{
449	# define TO_SOCKET(x) (x)	653	if (s_epipe_renew (&respipe))
450	#endif	654	croak ("IO::AIO: unable to initialize result pipe");
		655	}
451		656
452	static void	657	static void
453	create_respipe (void)	658	poll_wait (void)
454	{	659	{
455	int old_readfd = respipe [0];
456
457	if (respipe [1] >= 0)
458	respipe_close (TO_SOCKET (respipe [1]));
459
460	#ifdef _WIN32
461	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
462	#else
463	if (pipe (respipe))
464	#endif
465	croak ("unable to initialize result pipe");
466
467	if (old_readfd >= 0)
468	{
469	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
470	croak ("unable to initialize result pipe(2)");
471
472	respipe_close (respipe [0]);
473	respipe [0] = old_readfd;
474	}
475
476	#ifdef _WIN32
477	int arg = 1;
478	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
479	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
480	#else
481	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
482	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
483	#endif
484	croak ("unable to initialize result pipe(3)");
485
486	respipe_osf [0] = TO_SOCKET (respipe [0]);
487	respipe_osf [1] = TO_SOCKET (respipe [1]);
488	}
489
490	static void poll_wait (void)
491	{
492	fd_set rfd;
493
494	while (eio_nreqs ())	660	while (eio_nreqs ())
495	{	661	{
496	int size;	662	int size;
497		663
498	X_LOCK (reslock);	664	X_LOCK (reslock);
…		…
502	if (size)	668	if (size)
503	return;	669	return;
504		670
505	etp_maybe_start_thread ();	671	etp_maybe_start_thread ();
506		672
507	FD_ZERO (&rfd);	673	s_epipe_wait (&respipe);
508	FD_SET (respipe [0], &rfd);
509
510	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
511	}	674	}
512	}	675	}
513		676
514	static int poll_cb (void)	677	static int
		678	poll_cb (void)
515	{	679	{
516	for (;;)	680	for (;;)
517	{	681	{
518	int res = eio_poll ();	682	int res = eio_poll ();
519		683
…		…
525		689
526	poll_wait ();	690	poll_wait ();
527	}	691	}
528	}	692	}
529		693
530	static void atfork_child (void)	694	static void ecb_cold
		695	reinit (void)
531	{	696	{
532	create_respipe ();	697	create_respipe ();
		698
		699	if (eio_init (want_poll, done_poll) < 0)
		700	croak ("IO::AIO: unable to initialise eio library");
533	}	701	}
		702
		703	/*****************************************************************************/
		704
		705	#if !_POSIX_MAPPED_FILES
		706	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		707	# define munmap(addr,length) EIO_ENOSYS ()
		708	#endif
		709
		710	#if !_POSIX_MEMORY_PROTECTION
		711	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		712	# define PROT_NONE 0
		713	# define PROT_WRITE 0
		714	# define MAP_PRIVATE 0
		715	# define MAP_SHARED 0
		716	# define MAP_FIXED 0
		717	#endif
		718
		719	#define MMAP_MAGIC PERL_MAGIC_ext
		720
		721	static int ecb_cold
		722	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		723	{
		724	int old_errno = errno;
		725	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		726	errno = old_errno;
		727
		728	mg->mg_obj = 0; /* just in case */
		729
		730	SvREADONLY_off (sv);
		731
		732	if (SvPVX (sv) != mg->mg_ptr)
		733	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		734
		735	SvCUR_set (sv, 0);
		736	SvPVX (sv) = 0;
		737	SvOK_off (sv);
		738
		739	return 0;
		740	}
		741
		742	static MGVTBL mmap_vtbl = {
		743	0, 0, 0, 0, mmap_free
		744	};
		745
		746	/*****************************************************************************/
534		747
535	static SV *	748	static SV *
536	get_cb (SV *cb_sv)	749	get_cb (SV *cb_sv)
537	{	750	{
538	SvGETMAGIC (cb_sv);	751	SvGETMAGIC (cb_sv);
539	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	752	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
540	}	753	}
541		754
		755	static aio_req ecb_noinline
		756	dreq (SV *callback)
		757	{
		758	SV *cb_cv;
		759	aio_req req;
		760	int req_pri = next_pri;
		761	next_pri = EIO_PRI_DEFAULT;
		762
		763	cb_cv = get_cb (callback);
		764
		765	req = calloc (sizeof (*req), 1);
		766	if (!req)
		767	croak ("out of memory during eio_req allocation");
		768
		769	req->callback = SvREFCNT_inc (cb_cv);
		770	req->pri = req_pri;
		771
		772	return req;
		773	}
		774
542	#define dREQ \	775	#define dREQ \
543	SV *cb_cv; \	776	aio_req req = dreq (callback); \
544	aio_req req; \
545	int req_pri = next_pri; \
546	next_pri = EIO_PRI_DEFAULT; \
547	\
548	cb_cv = get_cb (callback); \
549	\
550	Newz (0, req, 1, eio_req); \
551	if (!req) \
552	croak ("out of memory during eio_req allocation"); \
553	\
554	req->callback = SvREFCNT_inc (cb_cv); \
555	req->pri = req_pri
556		777
557	#define REQ_SEND \	778	#define REQ_SEND \
558	PUTBACK; \	779	PUTBACK; \
559	req_submit (req); \	780	req_submit (req); \
560	SPAGAIN; \	781	SPAGAIN; \
561	\	782	\
562	if (GIMME_V != G_VOID) \	783	if (GIMME_V != G_VOID) \
563	XPUSHs (req_sv (req, AIO_REQ_KLASS));	784	XPUSHs (req_sv (req, aio_req_stash));
		785
		786	ecb_inline void
		787	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		788	{
		789	if (expect_false (SvROK (path)))
		790	{
		791	SV *rv = SvRV (path);
		792	SV *wdob;
		793
		794	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		795	{
		796	path = AvARRAY (rv)[1];
		797	wdob = AvARRAY (rv)[0];
		798
		799	if (SvOK (wdob))
		800	{
		801	*wd = SvAIO_WD (wdob);
		802	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		803	}
		804	else
		805	*wd = EIO_INVALID_WD;
		806	}
		807	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		808	{
		809	*wd = (aio_wd)(long)SvIVX (rv);
		810	*wdsv = SvREFCNT_inc_NN (rv);
		811	*ptr = ".";
		812	return; /* path set to "." */
		813	}
		814	else
		815	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		816	}
		817
		818	*pathsv = newSVsv (path);
		819	*ptr = SvPVbyte_nolen (*pathsv);
		820	}
		821
		822	static void ecb_noinline
		823	req_set_path1 (aio_req req, SV *path)
		824	{
		825	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		826	}
		827
		828	static void ecb_noinline
		829	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		830	{
		831	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		832
		833	switch (SvTYPE (rv))
		834	{
		835	case SVt_PVIO:
		836	case SVt_PVLV:
		837	case SVt_PVGV:
		838	req->type = type_fh;
		839	req->sv1 = newSVsv (fh_or_path);
		840	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		841	break;
		842
		843	default:
		844	req->type = type_path;
		845	req_set_path1 (req, fh_or_path);
		846	break;
		847	}
		848	}
		849
		850	XS(boot_IO__AIO) ecb_cold;
564		851
565	MODULE = IO::AIO PACKAGE = IO::AIO	852	MODULE = IO::AIO PACKAGE = IO::AIO
566		853
567	PROTOTYPES: ENABLE	854	PROTOTYPES: ENABLE
568		855
…		…
570	{	857	{
571	static const struct {	858	static const struct {
572	const char *name;	859	const char *name;
573	IV iv;	860	IV iv;
574	} *civ, const_iv[] = {	861	} *civ, const_iv[] = {
575	# define const_iv(name, value) { # name, (IV) value },	862	# define const_niv(name, value) { # name, (IV) value },
		863	# define const_iv(name) { # name, (IV) name },
576	# define const_eio(name) { # name, (IV) EIO_ ## name },	864	# define const_eio(name) { # name, (IV) EIO_ ## name },
577	const_iv (EXDEV , EXDEV)	865
		866	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		867
578	const_iv (ENOSYS , ENOSYS)	868	const_iv (ENOSYS)
		869	const_iv (EXDEV)
		870	const_iv (EBADR)
		871
579	const_iv (O_RDONLY, O_RDONLY)	872	const_iv (O_RDONLY)
580	const_iv (O_WRONLY, O_WRONLY)	873	const_iv (O_WRONLY)
		874	const_iv (O_RDWR)
581	const_iv (O_CREAT , O_CREAT)	875	const_iv (O_CREAT)
582	const_iv (O_TRUNC , O_TRUNC)	876	const_iv (O_TRUNC)
583	#ifndef _WIN32	877	const_iv (O_EXCL)
		878	const_iv (O_APPEND)
		879
		880	const_iv (O_ASYNC)
		881	const_iv (O_DIRECT)
		882	const_iv (O_NOATIME)
		883
		884	const_iv (O_CLOEXEC)
		885	const_iv (O_NOCTTY)
		886	const_iv (O_NOFOLLOW)
		887	const_iv (O_NONBLOCK)
		888	const_iv (O_EXEC)
		889	const_iv (O_SEARCH)
		890	const_iv (O_DIRECTORY)
		891	const_iv (O_DSYNC)
		892	const_iv (O_RSYNC)
		893	const_iv (O_SYNC)
		894	const_iv (O_TTY_INIT)
		895
584	const_iv (S_IFIFO , S_IFIFO)	896	const_iv (S_IFIFO)
585	#endif	897	const_iv (S_IFCHR)
		898	const_iv (S_IFBLK)
		899	const_iv (S_IFLNK)
		900	const_iv (S_IFREG)
		901	const_iv (S_IFDIR)
		902	const_iv (S_IFWHT)
		903	const_iv (S_IFSOCK)
		904	const_iv (S_IFMT)
		905
586	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	906	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
587	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	907	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
588	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	908	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
589	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	909	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
590	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	910	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
591	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	911	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		912
		913	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		914	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		915	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		916	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		917	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		918
		919	const_iv (ST_RDONLY)
		920	const_iv (ST_NOSUID)
		921	const_iv (ST_NODEV)
		922	const_iv (ST_NOEXEC)
		923	const_iv (ST_SYNCHRONOUS)
		924	const_iv (ST_MANDLOCK)
		925	const_iv (ST_WRITE)
		926	const_iv (ST_APPEND)
		927	const_iv (ST_IMMUTABLE)
		928	const_iv (ST_NOATIME)
		929	const_iv (ST_NODIRATIME)
		930	const_iv (ST_RELATIME)
		931
		932	const_iv (PROT_NONE)
		933	const_iv (PROT_EXEC)
		934	const_iv (PROT_READ)
		935	const_iv (PROT_WRITE)
		936
		937	/*const_iv (MAP_FIXED)*/
		938	const_iv (MAP_PRIVATE)
		939	const_iv (MAP_SHARED)
		940	const_iv (MAP_ANONYMOUS)
		941
		942	/* linuxish */
		943	const_iv (MAP_HUGETLB)
		944	const_iv (MAP_LOCKED)
		945	const_iv (MAP_NORESERVE)
		946	const_iv (MAP_POPULATE)
		947	const_iv (MAP_NONBLOCK)
		948
		949	const_iv (FIEMAP_FLAG_SYNC)
		950	const_iv (FIEMAP_FLAG_XATTR)
		951	const_iv (FIEMAP_FLAGS_COMPAT)
		952	const_iv (FIEMAP_EXTENT_LAST)
		953	const_iv (FIEMAP_EXTENT_UNKNOWN)
		954	const_iv (FIEMAP_EXTENT_DELALLOC)
		955	const_iv (FIEMAP_EXTENT_ENCODED)
		956	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		957	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		958	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		959	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		960	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		961	const_iv (FIEMAP_EXTENT_MERGED)
		962	const_iv (FIEMAP_EXTENT_SHARED)
		963
		964	const_iv (SPLICE_F_MOVE)
		965	const_iv (SPLICE_F_NONBLOCK)
		966	const_iv (SPLICE_F_MORE)
		967	const_iv (SPLICE_F_GIFT)
		968
		969	const_iv (SEEK_DATA)
		970	const_iv (SEEK_HOLE)
		971
		972	/* libeio constants */
		973	const_eio (SEEK_SET)
		974	const_eio (SEEK_CUR)
		975	const_eio (SEEK_END)
		976
		977	const_eio (MCL_FUTURE)
		978	const_eio (MCL_CURRENT)
		979
		980	const_eio (MS_ASYNC)
		981	const_eio (MS_INVALIDATE)
		982	const_eio (MS_SYNC)
		983
		984	const_eio (MT_MODIFY)
592		985
593	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	986	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
594	const_eio (SYNC_FILE_RANGE_WRITE)	987	const_eio (SYNC_FILE_RANGE_WRITE)
595	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	988	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		989
		990	const_eio (FALLOC_FL_KEEP_SIZE)
		991	const_eio (FALLOC_FL_PUNCH_HOLE)
596		992
597	const_eio (READDIR_DENTS)	993	const_eio (READDIR_DENTS)
598	const_eio (READDIR_DIRS_FIRST)	994	const_eio (READDIR_DIRS_FIRST)
599	const_eio (READDIR_STAT_ORDER)	995	const_eio (READDIR_STAT_ORDER)
600	const_eio (READDIR_FOUND_UNKNOWN)	996	const_eio (READDIR_FOUND_UNKNOWN)
…		…
608	const_eio (DT_LNK)	1004	const_eio (DT_LNK)
609	const_eio (DT_SOCK)	1005	const_eio (DT_SOCK)
610	const_eio (DT_WHT)	1006	const_eio (DT_WHT)
611	};	1007	};
612		1008
613	stash = gv_stashpv ("IO::AIO", 1);	1009	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1010	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1011	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1012	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
614		1013
615	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1014	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
616	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1015	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
617		1016
618	create_respipe ();	1017	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
619		1018
620	if (eio_init (want_poll, done_poll) < 0)	1019	reinit ();
621	croak ("IO::AIO: unable to initialise eio library");
622
623	/* atfork child called in fifo order, so before eio's handler */
624	X_THREAD_ATFORK (0, 0, atfork_child);
625	}	1020	}
626		1021
627	void	1022	void
		1023	reinit ()
		1024	PROTOTYPE:
		1025
		1026	void
628	max_poll_reqs (int nreqs)	1027	max_poll_reqs (unsigned int nreqs)
629	PROTOTYPE: $	1028	PROTOTYPE: $
630	CODE:	1029	CODE:
631	eio_set_max_poll_reqs (nreqs);	1030	eio_set_max_poll_reqs (nreqs);
632		1031
633	void	1032	void
…		…
635	PROTOTYPE: $	1034	PROTOTYPE: $
636	CODE:	1035	CODE:
637	eio_set_max_poll_time (nseconds);	1036	eio_set_max_poll_time (nseconds);
638		1037
639	void	1038	void
640	min_parallel (int nthreads)	1039	min_parallel (unsigned int nthreads)
641	PROTOTYPE: $	1040	PROTOTYPE: $
642	CODE:	1041	CODE:
643	eio_set_min_parallel (nthreads);	1042	eio_set_min_parallel (nthreads);
644		1043
645	void	1044	void
646	max_parallel (int nthreads)	1045	max_parallel (unsigned int nthreads)
647	PROTOTYPE: $	1046	PROTOTYPE: $
648	CODE:	1047	CODE:
649	eio_set_max_parallel (nthreads);	1048	eio_set_max_parallel (nthreads);
650		1049
651	void	1050	void
652	max_idle (int nthreads)	1051	max_idle (unsigned int nthreads)
653	PROTOTYPE: $	1052	PROTOTYPE: $
654	CODE:	1053	CODE:
655	eio_set_max_idle (nthreads);	1054	eio_set_max_idle (nthreads);
656		1055
657	void	1056	void
		1057	idle_timeout (unsigned int seconds)
		1058	PROTOTYPE: $
		1059	CODE:
		1060	eio_set_idle_timeout (seconds);
		1061
		1062	void
658	max_outstanding (int maxreqs)	1063	max_outstanding (unsigned int maxreqs)
659	PROTOTYPE: $	1064	PROTOTYPE: $
660	CODE:	1065	CODE:
661	max_outstanding = maxreqs;	1066	max_outstanding = maxreqs;
662		1067
663	void	1068	void
		1069	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1070	PPCODE:
		1071	{
		1072	dREQ;
		1073
		1074	req->type = EIO_WD_OPEN;
		1075	req_set_path1 (req, pathname);
		1076
		1077	REQ_SEND;
		1078	}
		1079
		1080	void
664	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1081	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
665	PROTOTYPE: $$$;$
666	PPCODE:	1082	PPCODE:
667	{	1083	{
668	dREQ;	1084	dREQ;
669		1085
670	req->type = EIO_OPEN;	1086	req->type = EIO_OPEN;
671	req->sv1 = newSVsv (pathname);	1087	req_set_path1 (req, pathname);
672	req->ptr1 = SvPVbyte_nolen (req->sv1);
673	req->int1 = flags;	1088	req->int1 = flags;
674	req->int2 = mode;	1089	req->int2 = mode;
675		1090
676	REQ_SEND;	1091	REQ_SEND;
677	}	1092	}
678		1093
679	void	1094	void
680	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1095	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $;$
682	ALIAS:	1096	ALIAS:
683	aio_fsync = EIO_FSYNC	1097	aio_fsync = EIO_FSYNC
684	aio_fdatasync = EIO_FDATASYNC	1098	aio_fdatasync = EIO_FDATASYNC
		1099	aio_syncfs = EIO_SYNCFS
685	PPCODE:	1100	PPCODE:
686	{	1101	{
687	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1103	dREQ;
689		1104
690	req->type = ix;	1105	req->type = ix;
691	req->sv1 = newSVsv (fh);	1106	req->sv1 = newSVsv (fh);
692	req->int1 = fd;	1107	req->int1 = fd;
693		1108
694	REQ_SEND (req);	1109	REQ_SEND;
695	}	1110	}
696		1111
697	void	1112	void
698	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1113	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
699	PROTOTYPE: $$$$;$
700	PPCODE:	1114	PPCODE:
701	{	1115	{
702	int fd = s_fileno_croak (fh, 0);	1116	int fd = s_fileno_croak (fh, 0);
703	dREQ;	1117	dREQ;
704		1118
…		…
707	req->int1 = fd;	1121	req->int1 = fd;
708	req->offs = offset;	1122	req->offs = offset;
709	req->size = nbytes;	1123	req->size = nbytes;
710	req->int2 = flags;	1124	req->int2 = flags;
711		1125
712	REQ_SEND (req);	1126	REQ_SEND;
713	}	1127	}
714		1128
715	void	1129	void
716	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1130	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
717	PROTOTYPE: $;$
718	PPCODE:	1131	PPCODE:
719	{	1132	{
720	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
721	int fd = s_fileno_croak (fh, 0);	1133	int fd = s_fileno_croak (fh, 0);
722	dREQ;	1134	dREQ;
723		1135
724	if (close_pipe < 0)	1136	req->type = EIO_FALLOCATE;
		1137	req->sv1 = newSVsv (fh);
		1138	req->int1 = fd;
		1139	req->int2 = mode;
		1140	req->offs = offset;
		1141	req->size = len;
		1142
		1143	REQ_SEND;
		1144	}
		1145
		1146	void
		1147	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1148	PPCODE:
		1149	{
		1150	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1151	int fd = s_fileno_croak (fh, 0);
		1152	dREQ;
		1153
		1154	if (expect_false (close_fd < 0))
725	{	1155	{
726	int pipefd [2];	1156	int pipefd [2];
727		1157
		1158	if (
		1159	#ifdef _WIN32
		1160	_pipe (pipefd, 1, _O_BINARY) < 0
		1161	#else
728	if (pipe (pipefd) < 0	1162	pipe (pipefd) < 0
729	|| close (pipefd [1]) < 0
730	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1163	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1164	#endif
		1165	|| close (pipefd [1]) < 0
		1166	)
731	abort (); /*D*/	1167	abort (); /*D*/
732		1168
733	close_pipe = pipefd [0];	1169	close_fd = pipefd [0];
734	}	1170	}
735		1171
736	req->type = EIO_DUP2;	1172	req->type = EIO_DUP2;
737	req->int1 = close_pipe;	1173	req->int1 = close_fd;
738	req->sv2 = newSVsv (fh);	1174	req->sv2 = newSVsv (fh);
739	req->int2 = fd;	1175	req->int2 = fd;
740		1176
741	REQ_SEND (req);	1177	REQ_SEND;
		1178	}
		1179
		1180	void
		1181	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1182	PPCODE:
		1183	{
		1184	int fd = s_fileno_croak (fh, 0);
		1185	dREQ;
		1186
		1187	req->type = EIO_SEEK;
		1188	req->sv1 = newSVsv (fh);
		1189	req->int1 = fd;
		1190	req->offs = SvVAL64 (offset);
		1191	req->int2 = whence;
		1192
		1193	REQ_SEND;
742	}	1194	}
743		1195
744	void	1196	void
745	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
746	ALIAS:	1198	ALIAS:
747	aio_read = EIO_READ	1199	aio_read = EIO_READ
748	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
749	PROTOTYPE: $$$$$;$
750	PPCODE:	1201	PPCODE:
751	{	1202	{
752	STRLEN svlen;	1203	STRLEN svlen;
753	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
754	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
…		…
768	}	1219	}
769	else	1220	else
770	{	1221	{
771	/* read: check type and grow scalar as necessary */	1222	/* read: check type and grow scalar as necessary */
772	SvUPGRADE (data, SVt_PV);	1223	SvUPGRADE (data, SVt_PV);
		1224	if (SvLEN (data) >= SvCUR (data))
773	svptr = SvGROW (data, len + dataoffset + 1);	1225	svptr = SvGROW (data, len + dataoffset + 1);
		1226	else if (SvCUR (data) < len + dataoffset)
		1227	croak ("length + dataoffset outside of scalar, and cannot grow");
774	}	1228	}
775		1229
776	{	1230	{
777	dREQ;	1231	dREQ;
778		1232
…		…
794	REQ_SEND;	1248	REQ_SEND;
795	}	1249	}
796	}	1250	}
797		1251
798	void	1252	void
799	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1253	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
800	PROTOTYPE: $$;$	1254	ALIAS:
		1255	aio_readlink = EIO_READLINK
		1256	aio_realpath = EIO_REALPATH
801	PPCODE:	1257	PPCODE:
802	{	1258	{
803	SV *data;
804	dREQ;	1259	dREQ;
805		1260
806	req->type = EIO_READLINK;	1261	req->type = ix;
807	req->sv1 = newSVsv (path);	1262	req_set_path1 (req, pathname);
808	req->ptr1 = SvPVbyte_nolen (req->sv1);
809		1263
810	REQ_SEND;	1264	REQ_SEND;
811	}	1265	}
812		1266
813	void	1267	void
814	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1268	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
815	PROTOTYPE: $$$$;$
816	PPCODE:	1269	PPCODE:
817	{	1270	{
818	int ifd = s_fileno_croak (in_fh , 0);	1271	int ifd = s_fileno_croak (in_fh , 0);
819	int ofd = s_fileno_croak (out_fh, 1);	1272	int ofd = s_fileno_croak (out_fh, 1);
820	dREQ;	1273	dREQ;
…		…
830	REQ_SEND;	1283	REQ_SEND;
831	}	1284	}
832		1285
833	void	1286	void
834	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1287	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
835	PROTOTYPE: $$$;$
836	PPCODE:	1288	PPCODE:
837	{	1289	{
838	int fd = s_fileno_croak (fh, 0);	1290	int fd = s_fileno_croak (fh, 0);
839	dREQ;	1291	dREQ;
840		1292
…		…
848	}	1300	}
849		1301
850	void	1302	void
851	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1303	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
852	ALIAS:	1304	ALIAS:
853	aio_stat = EIO_STAT	1305	aio_stat = EIO_STAT
854	aio_lstat = EIO_LSTAT	1306	aio_lstat = EIO_LSTAT
		1307	aio_statvfs = EIO_STATVFS
855	PPCODE:	1308	PPCODE:
856	{	1309	{
857	dREQ;	1310	dREQ;
858		1311
859	req->sv1 = newSVsv (fh_or_path);	1312	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
860
861	if (SvPOK (req->sv1))
862	{
863	req->type = ix;
864	req->ptr1 = SvPVbyte_nolen (req->sv1);
865	}
866	else
867	{
868	req->type = EIO_FSTAT;
869	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
870	}
871		1313
872	REQ_SEND;	1314	REQ_SEND;
873	}	1315	}
		1316
		1317	UV
		1318	major (UV dev)
		1319	ALIAS:
		1320	minor = 1
		1321	CODE:
		1322	RETVAL = ix ? major (dev) : minor (dev);
		1323	OUTPUT:
		1324	RETVAL
		1325
		1326	UV
		1327	makedev (UV maj, UV min)
		1328	CODE:
		1329	RETVAL = makedev (maj, min);
		1330	OUTPUT:
		1331	RETVAL
874		1332
875	void	1333	void
876	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1334	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
877	PPCODE:	1335	PPCODE:
878	{	1336	{
879	dREQ;	1337	dREQ;
880		1338
881	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1339	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
882	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1340	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
883	req->sv1 = newSVsv (fh_or_path);	1341	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
884
885	if (SvPOK (req->sv1))
886	{
887	req->type = EIO_UTIME;
888	req->ptr1 = SvPVbyte_nolen (req->sv1);
889	}
890	else
891	{
892	req->type = EIO_FUTIME;
893	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
894	}
895		1342
896	REQ_SEND;	1343	REQ_SEND;
897	}	1344	}
898		1345
899	void	1346	void
900	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1347	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
901	PPCODE:	1348	PPCODE:
902	{	1349	{
903	dREQ;	1350	dREQ;
904		1351
905	req->sv1 = newSVsv (fh_or_path);
906	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
907		1353	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
908	if (SvPOK (req->sv1))
909	{
910	req->type = EIO_TRUNCATE;
911	req->ptr1 = SvPVbyte_nolen (req->sv1);
912	}
913	else
914	{
915	req->type = EIO_FTRUNCATE;
916	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
917	}
918		1354
919	REQ_SEND;	1355	REQ_SEND;
920	}	1356	}
921		1357
922	void	1358	void
923	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1359	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
924	ALIAS:
925	aio_chmod = EIO_CHMOD
926	aio_mkdir = EIO_MKDIR
927	PPCODE:	1360	PPCODE:
928	{	1361	{
929	dREQ;	1362	dREQ;
930		1363
931	req->int2 = mode;	1364	req->int2 = mode;
932	req->sv1 = newSVsv (fh_or_path);	1365	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
933
934	if (SvPOK (req->sv1))
935	{
936	req->type = ix;
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938	}
939	else
940	{
941	req->type = EIO_FCHMOD;
942	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
943	}
944		1366
945	REQ_SEND;	1367	REQ_SEND;
946	}	1368	}
947		1369
948	void	1370	void
…		…
951	{	1373	{
952	dREQ;	1374	dREQ;
953		1375
954	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1376	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
955	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1377	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
956	req->sv1 = newSVsv (fh_or_path);	1378	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
957
958	if (SvPOK (req->sv1))
959	{
960	req->type = EIO_CHOWN;
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962	}
963	else
964	{
965	req->type = EIO_FCHOWN;
966	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
967	}
968		1379
969	REQ_SEND;	1380	REQ_SEND;
970	}	1381	}
971		1382
972	void	1383	void
…		…
974	PPCODE:	1385	PPCODE:
975	{	1386	{
976	dREQ;	1387	dREQ;
977		1388
978	req->type = EIO_READDIR;	1389	req->type = EIO_READDIR;
979	req->sv1 = newSVsv (pathname);
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1390	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
982		1391
983	if (flags & EIO_READDIR_DENTS)	1392	if (flags & EIO_READDIR_DENTS)
984	req->int1 |= EIO_READDIR_CUSTOM2;	1393	req->int1 |= EIO_READDIR_CUSTOM2;
985		1394
		1395	req_set_path1 (req, pathname);
		1396
986	REQ_SEND;	1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	dREQ;
		1405
		1406	req->type = EIO_MKDIR;
		1407	req->int2 = mode;
		1408	req_set_path1 (req, pathname);
		1409
		1410	REQ_SEND;
987	}	1411	}
988		1412
989	void	1413	void
990	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1414	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
991	ALIAS:	1415	ALIAS:
…		…
995	PPCODE:	1419	PPCODE:
996	{	1420	{
997	dREQ;	1421	dREQ;
998		1422
999	req->type = ix;	1423	req->type = ix;
1000	req->sv1 = newSVsv (pathname);	1424	req_set_path1 (req, pathname);
1001	req->ptr1 = SvPVbyte_nolen (req->sv1);
1002		1425
1003	REQ_SEND;	1426	REQ_SEND;
1004	}	1427	}
1005		1428
1006	void	1429	void
…		…
1009	aio_link = EIO_LINK	1432	aio_link = EIO_LINK
1010	aio_symlink = EIO_SYMLINK	1433	aio_symlink = EIO_SYMLINK
1011	aio_rename = EIO_RENAME	1434	aio_rename = EIO_RENAME
1012	PPCODE:	1435	PPCODE:
1013	{	1436	{
		1437	eio_wd wd2 = 0;
1014	dREQ;	1438	dREQ;
1015		1439
1016	req->type = ix;	1440	req->type = ix;
1017	req->sv1 = newSVsv (oldpath);	1441	req_set_path1 (req, oldpath);
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1019	req->sv2 = newSVsv (newpath);	1443	req->int3 = (long)wd2;
1020	req->ptr2 = SvPVbyte_nolen (req->sv2);
1021		1444
1022	REQ_SEND;	1445	REQ_SEND;
1023	}	1446	}
1024		1447
1025	void	1448	void
…		…
1027	PPCODE:	1450	PPCODE:
1028	{	1451	{
1029	dREQ;	1452	dREQ;
1030		1453
1031	req->type = EIO_MKNOD;	1454	req->type = EIO_MKNOD;
1032	req->sv1 = newSVsv (pathname);
1033	req->ptr1 = SvPVbyte_nolen (req->sv1);
1034	req->int2 = (mode_t)mode;	1455	req->int2 = (mode_t)mode;
1035	req->offs = dev;	1456	req->offs = dev;
		1457	req_set_path1 (req, pathname);
1036		1458
1037	REQ_SEND;	1459	REQ_SEND;
1038	}	1460	}
1039		1461
1040	void	1462	void
		1463	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1464	ALIAS:
		1465	aio_mtouch = EIO_MTOUCH
		1466	aio_msync = EIO_MSYNC
		1467	PPCODE:
		1468	{
		1469	STRLEN svlen;
		1470	char *svptr = SvPVbyte (data, svlen);
		1471	UV len = SvUV (length);
		1472
		1473	if (offset < 0)
		1474	offset += svlen;
		1475
		1476	if (offset < 0 || offset > svlen)
		1477	croak ("offset outside of scalar");
		1478
		1479	if (!SvOK (length) || len + offset > svlen)
		1480	len = svlen - offset;
		1481
		1482	{
		1483	dREQ;
		1484
		1485	req->type = ix;
		1486	req->sv2 = SvREFCNT_inc (data);
		1487	req->ptr2 = (char *)svptr + offset;
		1488	req->size = len;
		1489	req->int1 = flags;
		1490
		1491	REQ_SEND;
		1492	}
		1493	}
		1494
		1495	void
		1496	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1497	PPCODE:
		1498	{
		1499	STRLEN svlen;
		1500	char *svptr = SvPVbyte (data, svlen);
		1501	UV len = SvUV (length);
		1502
		1503	if (offset < 0)
		1504	offset += svlen;
		1505
		1506	if (offset < 0 || offset > svlen)
		1507	croak ("offset outside of scalar");
		1508
		1509	if (!SvOK (length) || len + offset > svlen)
		1510	len = svlen - offset;
		1511
		1512	{
		1513	dREQ;
		1514
		1515	req->type = EIO_MLOCK;
		1516	req->sv2 = SvREFCNT_inc (data);
		1517	req->ptr2 = (char *)svptr + offset;
		1518	req->size = len;
		1519
		1520	REQ_SEND;
		1521	}
		1522	}
		1523
		1524	void
		1525	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1526	PPCODE:
		1527	{
		1528	dREQ;
		1529
		1530	req->type = EIO_MLOCKALL;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535
		1536	void
		1537	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	dREQ;
		1542
		1543	req->type = EIO_CUSTOM;
		1544	req->sv1 = newSVsv (fh);
		1545	req->int1 = fd;
		1546
		1547	req->feed = fiemap;
		1548	#if HAVE_FIEMAP
		1549	/* keep our fingers crossed that the next two types are 64 bit */
		1550	req->offs = start;
		1551	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1552	req->int2 = flags;
		1553	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1554	#endif
		1555
		1556	REQ_SEND;
		1557	}
		1558
		1559	void
1041	aio_busy (double delay, SV *callback=&PL_sv_undef)	1560	aio_busy (double delay, SV *callback=&PL_sv_undef)
1042	PPCODE:	1561	PPCODE:
1043	{	1562	{
1044	dREQ;	1563	dREQ;
1045		1564
…		…
1049	REQ_SEND;	1568	REQ_SEND;
1050	}	1569	}
1051		1570
1052	void	1571	void
1053	aio_group (SV *callback=&PL_sv_undef)	1572	aio_group (SV *callback=&PL_sv_undef)
1054	PROTOTYPE: ;$
1055	PPCODE:	1573	PPCODE:
1056	{	1574	{
1057	dREQ;	1575	dREQ;
1058		1576
1059	req->type = EIO_GROUP;	1577	req->type = EIO_GROUP;
1060		1578
1061	req_submit (req);	1579	req_submit (req);
1062	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1580	XPUSHs (req_sv (req, aio_grp_stash));
1063	}	1581	}
1064		1582
1065	void	1583	void
1066	aio_nop (SV *callback=&PL_sv_undef)	1584	aio_nop (SV *callback=&PL_sv_undef)
1067	ALIAS:	1585	ALIAS:
…		…
1076	REQ_SEND;	1594	REQ_SEND;
1077	}	1595	}
1078		1596
1079	int	1597	int
1080	aioreq_pri (int pri = 0)	1598	aioreq_pri (int pri = 0)
1081	PROTOTYPE: ;$
1082	CODE:	1599	CODE:
1083	RETVAL = next_pri;	1600	RETVAL = next_pri;
1084	if (items > 0)	1601	if (items > 0)
1085	{	1602	{
1086	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1603	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1098	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1615	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1099	next_pri = nice;	1616	next_pri = nice;
1100		1617
1101	void	1618	void
1102	flush ()	1619	flush ()
1103	PROTOTYPE:
1104	CODE:	1620	CODE:
1105	while (eio_nreqs ())	1621	while (eio_nreqs ())
1106	{	1622	{
1107	poll_wait ();	1623	poll_wait ();
1108	poll_cb ();	1624	poll_cb ();
1109	}	1625	}
1110		1626
1111	int	1627	int
1112	poll()	1628	poll ()
1113	PROTOTYPE:
1114	CODE:	1629	CODE:
1115	poll_wait ();	1630	poll_wait ();
1116	RETVAL = poll_cb ();	1631	RETVAL = poll_cb ();
1117	OUTPUT:	1632	OUTPUT:
1118	RETVAL	1633	RETVAL
1119		1634
1120	int	1635	int
1121	poll_fileno()	1636	poll_fileno ()
1122	PROTOTYPE:
1123	CODE:	1637	CODE:
1124	RETVAL = respipe [0];	1638	RETVAL = s_epipe_fd (&respipe);
1125	OUTPUT:	1639	OUTPUT:
1126	RETVAL	1640	RETVAL
1127		1641
1128	int	1642	int
1129	poll_cb(...)	1643	poll_cb (...)
1130	PROTOTYPE:	1644	PROTOTYPE:
1131	CODE:	1645	CODE:
1132	RETVAL = poll_cb ();	1646	RETVAL = poll_cb ();
1133	OUTPUT:	1647	OUTPUT:
1134	RETVAL	1648	RETVAL
1135		1649
1136	void	1650	void
1137	poll_wait()	1651	poll_wait ()
1138	PROTOTYPE:
1139	CODE:	1652	CODE:
1140	poll_wait ();	1653	poll_wait ();
1141		1654
1142	int	1655	int
1143	nreqs()	1656	nreqs ()
1144	PROTOTYPE:
1145	CODE:	1657	CODE:
1146	RETVAL = eio_nreqs ();	1658	RETVAL = eio_nreqs ();
1147	OUTPUT:	1659	OUTPUT:
1148	RETVAL	1660	RETVAL
1149		1661
1150	int	1662	int
1151	nready()	1663	nready ()
1152	PROTOTYPE:
1153	CODE:	1664	CODE:
1154	RETVAL = eio_nready ();	1665	RETVAL = eio_nready ();
1155	OUTPUT:	1666	OUTPUT:
1156	RETVAL	1667	RETVAL
1157		1668
1158	int	1669	int
1159	npending()	1670	npending ()
1160	PROTOTYPE:
1161	CODE:	1671	CODE:
1162	RETVAL = eio_npending ();	1672	RETVAL = eio_npending ();
1163	OUTPUT:	1673	OUTPUT:
1164	RETVAL	1674	RETVAL
1165		1675
1166	int	1676	int
1167	nthreads()	1677	nthreads ()
1168	PROTOTYPE:
1169	CODE:	1678	CODE:
1170	RETVAL = eio_nthreads ();	1679	RETVAL = eio_nthreads ();
1171	OUTPUT:	1680	OUTPUT:
1172	RETVAL	1681	RETVAL
1173		1682
1174	int	1683	int
1175	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1684	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1176	PROTOTYPE: $$$$
1177	CODE:	1685	CODE:
1178	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1179	RETVAL = posix_fadvise (fh, offset, length, advice);	1686	RETVAL = posix_fadvise (fh, offset, length, advice);
1180	#else
1181	RETVAL = errno = ENOSYS;
1182	#endif
1183	OUTPUT:	1687	OUTPUT:
1184	RETVAL	1688	RETVAL
1185		1689
1186	ssize_t	1690	IV
1187	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1691	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1188	PROTOTYPE: $$$$
1189	CODE:	1692	CODE:
1190	eio_sendfile_sync (ofh, ifh, offset, count);	1693	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1694	OUTPUT:
		1695	RETVAL
		1696
		1697	void
		1698	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1699	PPCODE:
		1700	sv_unmagic (scalar, MMAP_MAGIC);
		1701	{
		1702	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1703	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1704	if (addr == (void *)-1)
		1705	XSRETURN_NO;
		1706
		1707	sv_force_normal (scalar);
		1708
		1709	/* we store the length in mg_obj, as namlen is I32 :/ */
		1710	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1711	->mg_obj = (SV *)length;
		1712
		1713	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1714
		1715	if (!(prot & PROT_WRITE))
		1716	SvREADONLY_on (scalar);
		1717
		1718	if (SvLEN (scalar))
		1719	Safefree (SvPVX (scalar));
		1720
		1721	SvPVX (scalar) = (char *)addr;
		1722	SvCUR_set (scalar, length);
		1723	SvLEN_set (scalar, 0);
		1724	SvPOK_only (scalar);
		1725
		1726	XSRETURN_YES;
		1727	}
		1728
		1729	void
		1730	munmap (SV *scalar)
		1731	CODE:
		1732	sv_unmagic (scalar, MMAP_MAGIC);
		1733
		1734	int
		1735	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1736	ALIAS:
		1737	mprotect = 1
		1738	CODE:
		1739	{
		1740	STRLEN svlen;
		1741	void *addr = SvPVbyte (scalar, svlen);
		1742	size_t len = SvUV (length);
		1743
		1744	if (offset < 0)
		1745	offset += svlen;
		1746
		1747	if (offset < 0 || offset > svlen)
		1748	croak ("offset outside of scalar");
		1749
		1750	if (!SvOK (length) || len + offset > svlen)
		1751	len = svlen - offset;
		1752
		1753	addr = (void *)(((intptr_t)addr) + offset);
		1754	eio_page_align (&addr, &len);
		1755
		1756	switch (ix)
		1757	{
		1758	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1759	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1760	}
		1761	}
		1762	OUTPUT:
		1763	RETVAL
		1764
		1765	int
		1766	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1767	CODE:
		1768	{
		1769	STRLEN svlen;
		1770	void *addr = SvPVbyte (scalar, svlen);
		1771	size_t len = SvUV (length);
		1772
		1773	if (offset < 0)
		1774	offset += svlen;
		1775
		1776	if (offset < 0 || offset > svlen)
		1777	croak ("offset outside of scalar");
		1778
		1779	if (!SvOK (length) || len + offset > svlen)
		1780	len = svlen - offset;
		1781
		1782	addr = (void *)(((intptr_t)addr) + offset);
		1783	eio_page_align (&addr, &len);
		1784	#if _POSIX_MEMLOCK_RANGE
		1785	RETVAL = munlock (addr, len);
		1786	#else
		1787	RETVAL = EIO_ENOSYS ();
		1788	#endif
		1789	}
		1790	OUTPUT:
		1791	RETVAL
		1792
		1793	int
		1794	munlockall ()
		1795	CODE:
		1796	#if _POSIX_MEMLOCK
		1797	munlockall ();
		1798	#else
		1799	RETVAL = EIO_ENOSYS ();
		1800	#endif
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1806	CODE:
		1807	{
		1808	#if HAVE_LINUX_SPLICE
		1809	loff_t off_in_, off_out_;
		1810	RETVAL = splice (
		1811	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1812	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1813	length, flags
		1814	);
		1815	#else
		1816	RETVAL = EIO_ENOSYS ();
		1817	#endif
		1818	}
		1819	OUTPUT:
		1820	RETVAL
		1821
		1822	int
		1823	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1824	CODE:
		1825	#if HAVE_LINUX_SPLICE
		1826	RETVAL = tee (rfh, wfh, length, flags);
		1827	#else
		1828	RETVAL = EIO_ENOSYS ();
		1829	#endif
		1830	OUTPUT:
		1831	RETVAL
1191		1832
1192	void _on_next_submit (SV *cb)	1833	void _on_next_submit (SV *cb)
1193	CODE:	1834	CODE:
1194	SvREFCNT_dec (on_next_submit);	1835	SvREFCNT_dec (on_next_submit);
1195	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1836	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1196		1837
1197	PROTOTYPES: DISABLE	1838	PROTOTYPES: DISABLE
1198		1839
		1840	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1841
		1842	BOOT:
		1843	{
		1844	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1845	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1846	}
		1847
		1848	void
		1849	DESTROY (SV *self)
		1850	CODE:
		1851	{
		1852	aio_wd wd = SvAIO_WD (self);
		1853	#if HAVE_AT
		1854	{
		1855	SV *callback = &PL_sv_undef;
		1856	dREQ; /* clobbers next_pri :/ */
		1857	next_pri = req->pri; /* restore next_pri */
		1858	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1859	req->type = EIO_WD_CLOSE;
		1860	req->wd = wd;
		1861	REQ_SEND;
		1862	}
		1863	#else
		1864	eio_wd_close_sync (wd);
		1865	#endif
		1866	}
		1867
1199	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1868	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1200		1869
1201	void	1870	void
1202	cancel (aio_req_ornot req)	1871	cancel (aio_req_ornot req)
1203	CODE:	1872	CODE:

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