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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	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
23	#endif	31	#endif
24		32
25	/* perl namespace pollution */	33	/* perl namespace pollution */
26	#undef VERSION	34	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		35
77	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	38	#undef readdir
80	#undef opendir	39	#undef opendir
81	#undef closedir	40	#undef closedir
82		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
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	79	#else
91	# define VAL64 NV	80
92	# define SvVAL64 SvNV	81	#include <sys/time.h>
93	# 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
94	#endif	89	#endif
95		90
96	/*****************************************************************************/	91	/*****************************************************************************/
97		92
98	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
108		103
109	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
112		107
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		109
115	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
116	SV *callback; \	111	SV *callback; \
117	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
118	STRLEN stroffset; \	114	STRLEN stroffset; \
119	SV *self;	115	SV *self;
120		116
121	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
122		118
		119	#include "libeio/config.h"
123	#include "libeio/eio.h"	120	#include "libeio/eio.h"
124		121
125	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
128	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		126
145	#ifndef ST_NODEV	127	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		128
176	#ifndef MCL_CURRENT	129	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	131	#endif
179	#ifndef MCL_FUTURE	132
180	# define MCL_FUTURE 0	133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	135	#endif
182		136
183	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	138	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
186	# else	140	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	142	# endif
189	#endif	143	#endif
190	#ifndef MAP_HUGETLB	144
191	# define MAP_HUGETLB 0	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))
192	#endif	150	#endif
193	#ifndef MAP_LOCKED	151	#ifndef major
194	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
195	#endif	153	#endif
196	#ifndef MAP_NORESERVE	154	#ifndef minor
197	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif	156	#endif
205		157
206	#ifndef PAGESIZE	158	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	160	#endif
209		161
210	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	163
212	static void req_destroy (eio_req *grp);	164	static void
213	#define EIO_DESTROY(req) req_destroy (req)	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	/*****************************************************************************/
214		224
215	enum {	225	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	226	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	227	};
218		228
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	229	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	230	typedef eio_req *aio_req_ornot;
		231	typedef eio_wd aio_wd;
223		232
224	static SV *on_next_submit;	233	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	234	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	235	static int max_outstanding;
227		236
228	static s_epipe respipe;	237	static s_epipe respipe;
229		238
230	static void req_destroy (aio_req req);	239	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	240	static void req_cancel (aio_req req);
232		241
233	static void want_poll (void)	242	static void
		243	want_poll (void)
234	{	244	{
235	/* write a dummy byte to the pipe so fh becomes ready */	245	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	246	s_epipe_signal (&respipe);
237	}	247	}
238		248
239	static void done_poll (void)	249	static void
		250	done_poll (void)
240	{	251	{
241	/* read any signals sent by the worker threads */	252	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	253	s_epipe_drain (&respipe);
243	}	254	}
244		255
245	/* must be called at most once */	256	/* must be called at most once */
		257	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	258	req_sv (aio_req req, HV *stash)
247	{	259	{
248	if (!req->self)	260	if (!req->self)
249	{	261	{
250	req->self = (SV *)newHV ();	262	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	263	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	264	}
253		265
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	266	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	267	}
256		268
257	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)
258	{	277	{
259	MAGIC *mg;	278	MAGIC *mg;
260		279
261	if (!SvROK (sv)	280	if (!SvROK (sv)
		281	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	282	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	283	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	284	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	285	croak ("object of class IO::AIO::REQ expected");
266		286
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	287	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		288
269	return mg ? (aio_req)mg->mg_ptr : 0;	289	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	290	}
271		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
272	static void aio_grp_feed (aio_req grp)	304	aio_grp_feed (aio_req grp)
273	{	305	{
274	if (grp->sv2 && SvOK (grp->sv2))	306	if (grp->sv2 && SvOK (grp->sv2))
275	{	307	{
276	dSP;	308	dSP;
277		309
…		…
285	FREETMPS;	317	FREETMPS;
286	LEAVE;	318	LEAVE;
287	}	319	}
288	}	320	}
289		321
		322	static void
290	static void req_submit (eio_req *req)	323	req_submit (eio_req *req)
291	{	324	{
292	eio_submit (req);	325	eio_submit (req);
293		326
294	if (expect_false (on_next_submit))	327	if (expect_false (on_next_submit))
295	{	328	{
…		…
302	PUTBACK;	335	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	336	call_sv (cb, G_DISCARD | G_EVAL);
304	}	337	}
305	}	338	}
306		339
		340	static int
307	static int req_invoke (eio_req *req)	341	req_invoke (eio_req *req)
308	{	342	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	343	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	344	SvREADONLY_off (req->sv2);
313		345
314	if (!EIO_CANCELLED (req) && req->callback)	346	if (!EIO_CANCELLED (req) && req->callback)
315	{	347	{
		348	dSP;
		349	static SV *sv_result_cache; /* caches the result integer SV */
		350	SV *sv_result;
		351
316	ENTER;	352	ENTER;
317	SAVETMPS;	353	SAVETMPS;
318	PUSHMARK (SP);	354	PUSHMARK (SP);
319	EXTEND (SP, 1);	355	EXTEND (SP, 1);
320		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
321	switch (req->type)	370	switch (req->type)
322	{	371	{
		372	case EIO_WD_OPEN:
		373	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		374	break;
		375
323	case EIO_READDIR:	376	case EIO_READDIR:
324	{	377	{
325	SV *rv = &PL_sv_undef;	378	SV *rv = &PL_sv_undef;
326		379
327	if (req->result >= 0)	380	if (req->result >= 0)
…		…
415	case EIO_STATVFS:	468	case EIO_STATVFS:
416	case EIO_FSTATVFS:	469	case EIO_FSTATVFS:
417	{	470	{
418	SV *rv = &PL_sv_undef;	471	SV *rv = &PL_sv_undef;
419		472
		473	#ifndef _WIN32
420	if (req->result >= 0)	474	if (req->result >= 0)
421	{	475	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	476	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	477	HV *hv = newHV ();
424		478
…		…
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	488	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	489	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	490	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	491	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	492	}
		493	#endif
439		494
440	PUSHs (rv);	495	PUSHs (rv);
441	}	496	}
442		497
443	break;	498	break;
…		…
459	case EIO_NOP:	514	case EIO_NOP:
460	case EIO_BUSY:	515	case EIO_BUSY:
461	break;	516	break;
462		517
463	case EIO_READLINK:	518	case EIO_READLINK:
		519	case EIO_REALPATH:
464	if (req->result > 0)	520	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	521	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	522	break;
467		523
468	case EIO_STAT:	524	case EIO_STAT:
469	case EIO_LSTAT:	525	case EIO_LSTAT:
470	case EIO_FSTAT:	526	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	527	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		528
472	PL_laststatval = req->result;	529	if (!(PL_laststatval = req->result))
		530	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	531	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	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)));
475	break;	538	break;
476		539
477	case EIO_READ:	540	case EIO_READ:
478	{	541	{
479	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));
480	*SvEND (req->sv2) = 0;	543	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	544	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	545	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	546	PUSHs (sv_result);
484	}	547	}
485	break;	548	break;
486		549
487	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 */
488	if (req->result > 0)	591	if (req->result > 0)
489	req->result = 0;	592	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	593	/* FALLTHROUGH */
491		594
492	default:	595	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	596	PUSHs (sv_result);
494	break;	597	break;
495	}	598	}
496		599
497	errno = req->errorno;	600	errno = req->errorno;
498		601
499	PUTBACK;	602	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	603	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	604	SPAGAIN;
502		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
503	FREETMPS;	611	FREETMPS;
504	LEAVE;	612	LEAVE;
505		613
506	PUTBACK;	614	PUTBACK;
507	}	615	}
508		616
509	return !!SvTRUE (ERRSV);	617	return !!SvTRUE (ERRSV);
510	}	618	}
511		619
		620	static void
512	static void req_destroy (aio_req req)	621	req_destroy (aio_req req)
513	{	622	{
514	if (req->self)	623	if (req->self)
515	{	624	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	625	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	626	SvREFCNT_dec (req->self);
518	}	627	}
519		628
520	SvREFCNT_dec (req->sv1);	629	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	630	SvREFCNT_dec (req->sv2);
		631	SvREFCNT_dec (req->sv3);
		632	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	633	SvREFCNT_dec (req->callback);
523		634
524	Safefree (req);	635	free (req);
525	}	636	}
526		637
		638	static void
527	static void req_cancel_subs (aio_req grp)	639	req_cancel_subs (aio_req grp)
528	{	640	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	641	if (grp->type != EIO_GROUP)
532	return;	642	return;
533		643
534	SvREFCNT_dec (grp->sv2);	644	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	645	grp->sv2 = 0;
536		646
537	eio_grp_cancel (grp);	647	eio_grp_cancel (grp);
538	}	648	}
539		649
540	static void	650	static void ecb_cold
541	create_respipe (void)	651	create_respipe (void)
542	{	652	{
543	if (s_epipe_renew (&respipe))	653	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	654	croak ("IO::AIO: unable to initialize result pipe");
545	}	655	}
546		656
547	static void poll_wait (void)	657	static void
		658	poll_wait (void)
548	{	659	{
549	while (eio_nreqs ())	660	while (eio_nreqs ())
550	{	661	{
551	int size;	662	int size;
552		663
…		…
561		672
562	s_epipe_wait (&respipe);	673	s_epipe_wait (&respipe);
563	}	674	}
564	}	675	}
565		676
566	static int poll_cb (void)	677	static int
		678	poll_cb (void)
567	{	679	{
568	for (;;)	680	for (;;)
569	{	681	{
570	int res = eio_poll ();	682	int res = eio_poll ();
571		683
…		…
577		689
578	poll_wait ();	690	poll_wait ();
579	}	691	}
580	}	692	}
581		693
582	static void atfork_child (void)	694	static void ecb_cold
		695	reinit (void)
583	{	696	{
584	create_respipe ();	697	create_respipe ();
		698
		699	if (eio_init (want_poll, done_poll) < 0)
		700	croak ("IO::AIO: unable to initialise eio library");
585	}	701	}
586		702
587	/*****************************************************************************/	703	/*****************************************************************************/
588		704
589	#if !_POSIX_MAPPED_FILES	705	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	706	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
591	# define munmap(addr,length) (errno = ENOSYS, -1)	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
592	#endif	717	#endif
593		718
594	#define MMAP_MAGIC PERL_MAGIC_ext	719	#define MMAP_MAGIC PERL_MAGIC_ext
595		720
596	static int	721	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	722	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	723	{
599	int old_errno = errno;	724	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	725	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	726	errno = old_errno;
602		727
603	mg->mg_obj = 0; /* just in case */	728	mg->mg_obj = 0; /* just in case */
604		729
605	SvREADONLY_off (sv);	730	SvREADONLY_off (sv);
		731
		732	if (SvPVX (sv) != mg->mg_ptr)
		733	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		734
606	SvCUR_set (sv, 0);	735	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	736	SvPVX (sv) = 0;
609	SvOK_off (sv);	737	SvOK_off (sv);
610		738
611	return 0;	739	return 0;
612	}	740	}
…		…
622	{	750	{
623	SvGETMAGIC (cb_sv);	751	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	752	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	753	}
626		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
627	#define dREQ \	775	#define dREQ \
628	SV *cb_cv; \	776	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		777
642	#define REQ_SEND \	778	#define REQ_SEND \
643	PUTBACK; \	779	PUTBACK; \
644	req_submit (req); \	780	req_submit (req); \
645	SPAGAIN; \	781	SPAGAIN; \
646	\	782	\
647	if (GIMME_V != G_VOID) \	783	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	784	XPUSHs (req_sv (req, aio_req_stash));
649		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;
		851
650	MODULE = IO::AIO PACKAGE = IO::AIO	852	MODULE = IO::AIO PACKAGE = IO::AIO
651		853
652	PROTOTYPES: ENABLE	854	PROTOTYPES: ENABLE
653		855
654	BOOT:	856	BOOT:
…		…
658	IV iv;	860	IV iv;
659	} *civ, const_iv[] = {	861	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	862	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	863	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	864	# define const_eio(name) { # name, (IV) EIO_ ## name },
		865
		866	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		867
		868	const_iv (ENOSYS)
663	const_iv (EXDEV)	869	const_iv (EXDEV)
664	const_iv (ENOSYS)	870	const_iv (EBADR)
		871
665	const_iv (O_RDONLY)	872	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	873	const_iv (O_WRONLY)
667	const_iv (O_RDWR)	874	const_iv (O_RDWR)
668	const_iv (O_CREAT)	875	const_iv (O_CREAT)
669	const_iv (O_TRUNC)	876	const_iv (O_TRUNC)
670	const_iv (O_EXCL)	877	const_iv (O_EXCL)
671	const_iv (O_APPEND)	878	const_iv (O_APPEND)
672	#ifndef _WIN32	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
673	const_iv (S_IFIFO)	896	const_iv (S_IFIFO)
674	#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
675	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	906	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
676	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	907	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
677	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	908	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
678	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	909	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
679	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	910	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
680	const_niv (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)
681		918
682	const_iv (ST_RDONLY)	919	const_iv (ST_RDONLY)
683	const_iv (ST_NOSUID)	920	const_iv (ST_NOSUID)
684	const_iv (ST_NODEV)	921	const_iv (ST_NODEV)
685	const_iv (ST_NOEXEC)	922	const_iv (ST_NOEXEC)
…		…
690	const_iv (ST_IMMUTABLE)	927	const_iv (ST_IMMUTABLE)
691	const_iv (ST_NOATIME)	928	const_iv (ST_NOATIME)
692	const_iv (ST_NODIRATIME)	929	const_iv (ST_NODIRATIME)
693	const_iv (ST_RELATIME)	930	const_iv (ST_RELATIME)
694		931
		932	const_iv (PROT_NONE)
695	const_iv (PROT_EXEC)	933	const_iv (PROT_EXEC)
696	const_iv (PROT_NONE)
697	const_iv (PROT_READ)	934	const_iv (PROT_READ)
698	const_iv (PROT_WRITE)	935	const_iv (PROT_WRITE)
699		936
700	/*const_iv (MAP_FIXED)*/	937	/*const_iv (MAP_FIXED)*/
701	const_iv (MAP_PRIVATE)	938	const_iv (MAP_PRIVATE)
…		…
707	const_iv (MAP_LOCKED)	944	const_iv (MAP_LOCKED)
708	const_iv (MAP_NORESERVE)	945	const_iv (MAP_NORESERVE)
709	const_iv (MAP_POPULATE)	946	const_iv (MAP_POPULATE)
710	const_iv (MAP_NONBLOCK)	947	const_iv (MAP_NONBLOCK)
711		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
712	const_iv (MCL_FUTURE)	977	const_eio (MCL_FUTURE)
713	const_iv (MCL_CURRENT)	978	const_eio (MCL_CURRENT)
714		979
715	const_eio (MS_ASYNC)	980	const_eio (MS_ASYNC)
716	const_eio (MS_INVALIDATE)	981	const_eio (MS_INVALIDATE)
717	const_eio (MS_SYNC)	982	const_eio (MS_SYNC)
718		983
719	const_eio (MT_MODIFY)	984	const_eio (MT_MODIFY)
720		985
721	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	986	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
722	const_eio (SYNC_FILE_RANGE_WRITE)	987	const_eio (SYNC_FILE_RANGE_WRITE)
723	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)
724		992
725	const_eio (READDIR_DENTS)	993	const_eio (READDIR_DENTS)
726	const_eio (READDIR_DIRS_FIRST)	994	const_eio (READDIR_DIRS_FIRST)
727	const_eio (READDIR_STAT_ORDER)	995	const_eio (READDIR_STAT_ORDER)
728	const_eio (READDIR_FOUND_UNKNOWN)	996	const_eio (READDIR_FOUND_UNKNOWN)
…		…
739	};	1007	};
740		1008
741	aio_stash = gv_stashpv ("IO::AIO" , 1);	1009	aio_stash = gv_stashpv ("IO::AIO" , 1);
742	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1010	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
743	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1011	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1012	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
744		1013
745	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--)
746	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1015	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
747		1016
748	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1017	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
749		1018
750	create_respipe ();	1019	reinit ();
751
752	if (eio_init (want_poll, done_poll) < 0)
753	croak ("IO::AIO: unable to initialise eio library");
754
755	/* atfork child called in fifo order, so before eio's handler */
756	X_THREAD_ATFORK (0, 0, atfork_child);
757	}	1020	}
758		1021
759	void	1022	void
		1023	reinit ()
		1024	PROTOTYPE:
		1025
		1026	void
760	max_poll_reqs (int nreqs)	1027	max_poll_reqs (unsigned int nreqs)
761	PROTOTYPE: $	1028	PROTOTYPE: $
762	CODE:	1029	CODE:
763	eio_set_max_poll_reqs (nreqs);	1030	eio_set_max_poll_reqs (nreqs);
764		1031
765	void	1032	void
…		…
767	PROTOTYPE: $	1034	PROTOTYPE: $
768	CODE:	1035	CODE:
769	eio_set_max_poll_time (nseconds);	1036	eio_set_max_poll_time (nseconds);
770		1037
771	void	1038	void
772	min_parallel (int nthreads)	1039	min_parallel (unsigned int nthreads)
773	PROTOTYPE: $	1040	PROTOTYPE: $
774	CODE:	1041	CODE:
775	eio_set_min_parallel (nthreads);	1042	eio_set_min_parallel (nthreads);
776		1043
777	void	1044	void
778	max_parallel (int nthreads)	1045	max_parallel (unsigned int nthreads)
779	PROTOTYPE: $	1046	PROTOTYPE: $
780	CODE:	1047	CODE:
781	eio_set_max_parallel (nthreads);	1048	eio_set_max_parallel (nthreads);
782		1049
783	void	1050	void
784	max_idle (int nthreads)	1051	max_idle (unsigned int nthreads)
785	PROTOTYPE: $	1052	PROTOTYPE: $
786	CODE:	1053	CODE:
787	eio_set_max_idle (nthreads);	1054	eio_set_max_idle (nthreads);
788		1055
789	void	1056	void
		1057	idle_timeout (unsigned int seconds)
		1058	PROTOTYPE: $
		1059	CODE:
		1060	eio_set_idle_timeout (seconds);
		1061
		1062	void
790	max_outstanding (int maxreqs)	1063	max_outstanding (unsigned int maxreqs)
791	PROTOTYPE: $	1064	PROTOTYPE: $
792	CODE:	1065	CODE:
793	max_outstanding = maxreqs;	1066	max_outstanding = maxreqs;
794		1067
795	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
796	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)
797	PROTOTYPE: $$$;$
798	PPCODE:	1082	PPCODE:
799	{	1083	{
800	dREQ;	1084	dREQ;
801		1085
802	req->type = EIO_OPEN;	1086	req->type = EIO_OPEN;
803	req->sv1 = newSVsv (pathname);	1087	req_set_path1 (req, pathname);
804	req->ptr1 = SvPVbyte_nolen (req->sv1);
805	req->int1 = flags;	1088	req->int1 = flags;
806	req->int2 = mode;	1089	req->int2 = mode;
807		1090
808	REQ_SEND;	1091	REQ_SEND;
809	}	1092	}
810		1093
811	void	1094	void
812	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1095	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
813	PROTOTYPE: $;$
814	ALIAS:	1096	ALIAS:
815	aio_fsync = EIO_FSYNC	1097	aio_fsync = EIO_FSYNC
816	aio_fdatasync = EIO_FDATASYNC	1098	aio_fdatasync = EIO_FDATASYNC
		1099	aio_syncfs = EIO_SYNCFS
817	PPCODE:	1100	PPCODE:
818	{	1101	{
819	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
820	dREQ;	1103	dREQ;
821		1104
822	req->type = ix;	1105	req->type = ix;
823	req->sv1 = newSVsv (fh);	1106	req->sv1 = newSVsv (fh);
824	req->int1 = fd;	1107	req->int1 = fd;
825		1108
826	REQ_SEND (req);	1109	REQ_SEND;
827	}	1110	}
828		1111
829	void	1112	void
830	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1113	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
831	PROTOTYPE: $$$$;$
832	PPCODE:	1114	PPCODE:
833	{	1115	{
834	int fd = s_fileno_croak (fh, 0);	1116	int fd = s_fileno_croak (fh, 0);
835	dREQ;	1117	dREQ;
836		1118
…		…
839	req->int1 = fd;	1121	req->int1 = fd;
840	req->offs = offset;	1122	req->offs = offset;
841	req->size = nbytes;	1123	req->size = nbytes;
842	req->int2 = flags;	1124	req->int2 = flags;
843		1125
844	REQ_SEND (req);	1126	REQ_SEND;
845	}	1127	}
846		1128
847	void	1129	void
848	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)
849	PROTOTYPE: $;$
850	PPCODE:	1131	PPCODE:
851	{	1132	{
852	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
853	int fd = s_fileno_croak (fh, 0);	1133	int fd = s_fileno_croak (fh, 0);
854	dREQ;	1134	dREQ;
855		1135
856	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))
857	{	1155	{
858	int pipefd [2];	1156	int pipefd [2];
859		1157
		1158	if (
		1159	#ifdef _WIN32
		1160	_pipe (pipefd, 1, _O_BINARY) < 0
		1161	#else
860	if (pipe (pipefd) < 0	1162	pipe (pipefd) < 0
861	|| close (pipefd [1]) < 0
862	|| 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	)
863	abort (); /*D*/	1167	abort (); /*D*/
864		1168
865	close_pipe = pipefd [0];	1169	close_fd = pipefd [0];
866	}	1170	}
867		1171
868	req->type = EIO_DUP2;	1172	req->type = EIO_DUP2;
869	req->int1 = close_pipe;	1173	req->int1 = close_fd;
870	req->sv2 = newSVsv (fh);	1174	req->sv2 = newSVsv (fh);
871	req->int2 = fd;	1175	req->int2 = fd;
872		1176
873	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;
874	}	1194	}
875		1195
876	void	1196	void
877	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)
878	ALIAS:	1198	ALIAS:
879	aio_read = EIO_READ	1199	aio_read = EIO_READ
880	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
881	PROTOTYPE: $$$$$;$
882	PPCODE:	1201	PPCODE:
883	{	1202	{
884	STRLEN svlen;	1203	STRLEN svlen;
885	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
886	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
…		…
900	}	1219	}
901	else	1220	else
902	{	1221	{
903	/* read: check type and grow scalar as necessary */	1222	/* read: check type and grow scalar as necessary */
904	SvUPGRADE (data, SVt_PV);	1223	SvUPGRADE (data, SVt_PV);
		1224	if (SvLEN (data) >= SvCUR (data))
905	svptr = SvGROW (data, len + dataoffset + 1);	1225	svptr = SvGROW (data, len + dataoffset + 1);
		1226	else if (SvCUR (data) < len + dataoffset)
		1227	croak ("length + dataoffset outside of scalar, and cannot grow");
906	}	1228	}
907		1229
908	{	1230	{
909	dREQ;	1231	dREQ;
910		1232
…		…
926	REQ_SEND;	1248	REQ_SEND;
927	}	1249	}
928	}	1250	}
929		1251
930	void	1252	void
931	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1253	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
932	PROTOTYPE: $$;$	1254	ALIAS:
		1255	aio_readlink = EIO_READLINK
		1256	aio_realpath = EIO_REALPATH
933	PPCODE:	1257	PPCODE:
934	{	1258	{
935	SV *data;
936	dREQ;	1259	dREQ;
937		1260
938	req->type = EIO_READLINK;	1261	req->type = ix;
939	req->sv1 = newSVsv (path);	1262	req_set_path1 (req, pathname);
940	req->ptr1 = SvPVbyte_nolen (req->sv1);
941		1263
942	REQ_SEND;	1264	REQ_SEND;
943	}	1265	}
944		1266
945	void	1267	void
946	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)
947	PROTOTYPE: $$$$;$
948	PPCODE:	1269	PPCODE:
949	{	1270	{
950	int ifd = s_fileno_croak (in_fh , 0);	1271	int ifd = s_fileno_croak (in_fh , 0);
951	int ofd = s_fileno_croak (out_fh, 1);	1272	int ofd = s_fileno_croak (out_fh, 1);
952	dREQ;	1273	dREQ;
…		…
962	REQ_SEND;	1283	REQ_SEND;
963	}	1284	}
964		1285
965	void	1286	void
966	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1287	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
967	PROTOTYPE: $$$;$
968	PPCODE:	1288	PPCODE:
969	{	1289	{
970	int fd = s_fileno_croak (fh, 0);	1290	int fd = s_fileno_croak (fh, 0);
971	dREQ;	1291	dREQ;
972		1292
…		…
987	aio_statvfs = EIO_STATVFS	1307	aio_statvfs = EIO_STATVFS
988	PPCODE:	1308	PPCODE:
989	{	1309	{
990	dREQ;	1310	dREQ;
991		1311
992	req->sv1 = newSVsv (fh_or_path);	1312	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
993
994	if (SvPOK (req->sv1))
995	{
996	req->type = ix;
997	req->ptr1 = SvPVbyte_nolen (req->sv1);
998	}
999	else
1000	{
1001	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1002	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1003	}
1004		1313
1005	REQ_SEND;	1314	REQ_SEND;
1006	}	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
1007		1332
1008	void	1333	void
1009	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)
1010	PPCODE:	1335	PPCODE:
1011	{	1336	{
1012	dREQ;	1337	dREQ;
1013		1338
1014	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1339	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1015	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1340	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1016	req->sv1 = newSVsv (fh_or_path);	1341	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1017
1018	if (SvPOK (req->sv1))
1019	{
1020	req->type = EIO_UTIME;
1021	req->ptr1 = SvPVbyte_nolen (req->sv1);
1022	}
1023	else
1024	{
1025	req->type = EIO_FUTIME;
1026	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1027	}
1028		1342
1029	REQ_SEND;	1343	REQ_SEND;
1030	}	1344	}
1031		1345
1032	void	1346	void
1033	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)
1034	PPCODE:	1348	PPCODE:
1035	{	1349	{
1036	dREQ;	1350	dREQ;
1037		1351
1038	req->sv1 = newSVsv (fh_or_path);
1039	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1040		1353	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1041	if (SvPOK (req->sv1))
1042	{
1043	req->type = EIO_TRUNCATE;
1044	req->ptr1 = SvPVbyte_nolen (req->sv1);
1045	}
1046	else
1047	{
1048	req->type = EIO_FTRUNCATE;
1049	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1050	}
1051		1354
1052	REQ_SEND;	1355	REQ_SEND;
1053	}	1356	}
1054		1357
1055	void	1358	void
1056	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)
1057	ALIAS:
1058	aio_chmod = EIO_CHMOD
1059	aio_mkdir = EIO_MKDIR
1060	PPCODE:	1360	PPCODE:
1061	{	1361	{
1062	dREQ;	1362	dREQ;
1063		1363
1064	req->int2 = mode;	1364	req->int2 = mode;
1065	req->sv1 = newSVsv (fh_or_path);	1365	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1066
1067	if (SvPOK (req->sv1))
1068	{
1069	req->type = ix;
1070	req->ptr1 = SvPVbyte_nolen (req->sv1);
1071	}
1072	else
1073	{
1074	req->type = EIO_FCHMOD;
1075	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1076	}
1077		1366
1078	REQ_SEND;	1367	REQ_SEND;
1079	}	1368	}
1080		1369
1081	void	1370	void
…		…
1084	{	1373	{
1085	dREQ;	1374	dREQ;
1086		1375
1087	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1376	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1088	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1377	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1089	req->sv1 = newSVsv (fh_or_path);	1378	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1090
1091	if (SvPOK (req->sv1))
1092	{
1093	req->type = EIO_CHOWN;
1094	req->ptr1 = SvPVbyte_nolen (req->sv1);
1095	}
1096	else
1097	{
1098	req->type = EIO_FCHOWN;
1099	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1100	}
1101		1379
1102	REQ_SEND;	1380	REQ_SEND;
1103	}	1381	}
1104		1382
1105	void	1383	void
…		…
1107	PPCODE:	1385	PPCODE:
1108	{	1386	{
1109	dREQ;	1387	dREQ;
1110		1388
1111	req->type = EIO_READDIR;	1389	req->type = EIO_READDIR;
1112	req->sv1 = newSVsv (pathname);
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1390	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1115		1391
1116	if (flags & EIO_READDIR_DENTS)	1392	if (flags & EIO_READDIR_DENTS)
1117	req->int1 |= EIO_READDIR_CUSTOM2;	1393	req->int1 |= EIO_READDIR_CUSTOM2;
1118		1394
		1395	req_set_path1 (req, pathname);
		1396
1119	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;
1120	}	1411	}
1121		1412
1122	void	1413	void
1123	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1414	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1124	ALIAS:	1415	ALIAS:
…		…
1128	PPCODE:	1419	PPCODE:
1129	{	1420	{
1130	dREQ;	1421	dREQ;
1131		1422
1132	req->type = ix;	1423	req->type = ix;
1133	req->sv1 = newSVsv (pathname);	1424	req_set_path1 (req, pathname);
1134	req->ptr1 = SvPVbyte_nolen (req->sv1);
1135		1425
1136	REQ_SEND;	1426	REQ_SEND;
1137	}	1427	}
1138		1428
1139	void	1429	void
…		…
1142	aio_link = EIO_LINK	1432	aio_link = EIO_LINK
1143	aio_symlink = EIO_SYMLINK	1433	aio_symlink = EIO_SYMLINK
1144	aio_rename = EIO_RENAME	1434	aio_rename = EIO_RENAME
1145	PPCODE:	1435	PPCODE:
1146	{	1436	{
		1437	eio_wd wd2 = 0;
1147	dREQ;	1438	dREQ;
1148		1439
1149	req->type = ix;	1440	req->type = ix;
1150	req->sv1 = newSVsv (oldpath);	1441	req_set_path1 (req, oldpath);
1151	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1152	req->sv2 = newSVsv (newpath);	1443	req->int3 = (long)wd2;
1153	req->ptr2 = SvPVbyte_nolen (req->sv2);
1154		1444
1155	REQ_SEND;	1445	REQ_SEND;
1156	}	1446	}
1157		1447
1158	void	1448	void
…		…
1160	PPCODE:	1450	PPCODE:
1161	{	1451	{
1162	dREQ;	1452	dREQ;
1163		1453
1164	req->type = EIO_MKNOD;	1454	req->type = EIO_MKNOD;
1165	req->sv1 = newSVsv (pathname);
1166	req->ptr1 = SvPVbyte_nolen (req->sv1);
1167	req->int2 = (mode_t)mode;	1455	req->int2 = (mode_t)mode;
1168	req->offs = dev;	1456	req->offs = dev;
		1457	req_set_path1 (req, pathname);
1169		1458
1170	REQ_SEND;	1459	REQ_SEND;
1171	}	1460	}
1172		1461
1173	void	1462	void
1174	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1463	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1175	ALIAS:	1464	ALIAS:
1176	aio_mtouch = EIO_MTOUCH	1465	aio_mtouch = EIO_MTOUCH
1177	aio_msync = EIO_MSYNC	1466	aio_msync = EIO_MSYNC
1178	PROTOTYPE: $$$$;$
1179	PPCODE:	1467	PPCODE:
1180	{	1468	{
1181	STRLEN svlen;	1469	STRLEN svlen;
		1470	char *svptr = SvPVbyte (data, svlen);
1182	UV len = SvUV (length);	1471	UV len = SvUV (length);
1183	char *svptr = SvPVbyte (data, svlen);
1184		1472
1185	if (offset < 0)	1473	if (offset < 0)
1186	offset += svlen;	1474	offset += svlen;
1187		1475
1188	if (offset < 0 || offset > svlen)	1476	if (offset < 0 || offset > svlen)
…		…
1193		1481
1194	{	1482	{
1195	dREQ;	1483	dREQ;
1196		1484
1197	req->type = ix;	1485	req->type = ix;
1198	req->size = len;
1199	req->sv2 = SvREFCNT_inc (data);	1486	req->sv2 = SvREFCNT_inc (data);
1200	req->ptr2 = (char *)svptr + offset;	1487	req->ptr2 = (char *)svptr + offset;
		1488	req->size = len;
1201	req->int1 = flags;	1489	req->int1 = flags;
1202		1490
1203	REQ_SEND;	1491	REQ_SEND;
1204	}	1492	}
1205	}	1493	}
1206		1494
1207	void	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
1208	aio_busy (double delay, SV *callback=&PL_sv_undef)	1560	aio_busy (double delay, SV *callback=&PL_sv_undef)
1209	PPCODE:	1561	PPCODE:
1210	{	1562	{
1211	dREQ;	1563	dREQ;
1212		1564
…		…
1216	REQ_SEND;	1568	REQ_SEND;
1217	}	1569	}
1218		1570
1219	void	1571	void
1220	aio_group (SV *callback=&PL_sv_undef)	1572	aio_group (SV *callback=&PL_sv_undef)
1221	PROTOTYPE: ;$
1222	PPCODE:	1573	PPCODE:
1223	{	1574	{
1224	dREQ;	1575	dREQ;
1225		1576
1226	req->type = EIO_GROUP;	1577	req->type = EIO_GROUP;
…		…
1243	REQ_SEND;	1594	REQ_SEND;
1244	}	1595	}
1245		1596
1246	int	1597	int
1247	aioreq_pri (int pri = 0)	1598	aioreq_pri (int pri = 0)
1248	PROTOTYPE: ;$
1249	CODE:	1599	CODE:
1250	RETVAL = next_pri;	1600	RETVAL = next_pri;
1251	if (items > 0)	1601	if (items > 0)
1252	{	1602	{
1253	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1603	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1265	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1615	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1266	next_pri = nice;	1616	next_pri = nice;
1267		1617
1268	void	1618	void
1269	flush ()	1619	flush ()
1270	PROTOTYPE:
1271	CODE:	1620	CODE:
1272	while (eio_nreqs ())	1621	while (eio_nreqs ())
1273	{	1622	{
1274	poll_wait ();	1623	poll_wait ();
1275	poll_cb ();	1624	poll_cb ();
1276	}	1625	}
1277		1626
1278	int	1627	int
1279	poll()	1628	poll ()
1280	PROTOTYPE:
1281	CODE:	1629	CODE:
1282	poll_wait ();	1630	poll_wait ();
1283	RETVAL = poll_cb ();	1631	RETVAL = poll_cb ();
1284	OUTPUT:	1632	OUTPUT:
1285	RETVAL	1633	RETVAL
1286		1634
1287	int	1635	int
1288	poll_fileno()	1636	poll_fileno ()
1289	PROTOTYPE:
1290	CODE:	1637	CODE:
1291	RETVAL = s_epipe_fd (&respipe);	1638	RETVAL = s_epipe_fd (&respipe);
1292	OUTPUT:	1639	OUTPUT:
1293	RETVAL	1640	RETVAL
1294		1641
1295	int	1642	int
1296	poll_cb(...)	1643	poll_cb (...)
1297	PROTOTYPE:	1644	PROTOTYPE:
1298	CODE:	1645	CODE:
1299	RETVAL = poll_cb ();	1646	RETVAL = poll_cb ();
1300	OUTPUT:	1647	OUTPUT:
1301	RETVAL	1648	RETVAL
1302		1649
1303	void	1650	void
1304	poll_wait()	1651	poll_wait ()
1305	PROTOTYPE:
1306	CODE:	1652	CODE:
1307	poll_wait ();	1653	poll_wait ();
1308		1654
1309	int	1655	int
1310	nreqs()	1656	nreqs ()
1311	PROTOTYPE:
1312	CODE:	1657	CODE:
1313	RETVAL = eio_nreqs ();	1658	RETVAL = eio_nreqs ();
1314	OUTPUT:	1659	OUTPUT:
1315	RETVAL	1660	RETVAL
1316		1661
1317	int	1662	int
1318	nready()	1663	nready ()
1319	PROTOTYPE:
1320	CODE:	1664	CODE:
1321	RETVAL = eio_nready ();	1665	RETVAL = eio_nready ();
1322	OUTPUT:	1666	OUTPUT:
1323	RETVAL	1667	RETVAL
1324		1668
1325	int	1669	int
1326	npending()	1670	npending ()
1327	PROTOTYPE:
1328	CODE:	1671	CODE:
1329	RETVAL = eio_npending ();	1672	RETVAL = eio_npending ();
1330	OUTPUT:	1673	OUTPUT:
1331	RETVAL	1674	RETVAL
1332		1675
1333	int	1676	int
1334	nthreads()	1677	nthreads ()
1335	PROTOTYPE:
1336	CODE:	1678	CODE:
1337	RETVAL = eio_nthreads ();	1679	RETVAL = eio_nthreads ();
1338	OUTPUT:	1680	OUTPUT:
1339	RETVAL	1681	RETVAL
1340		1682
1341	int	1683	int
1342	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)
1343	PROTOTYPE: $$$$
1344	CODE:	1685	CODE:
1345	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1346	RETVAL = posix_fadvise (fh, offset, length, advice);	1686	RETVAL = posix_fadvise (fh, offset, length, advice);
1347	#else
1348	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1349	#endif
1350	OUTPUT:	1687	OUTPUT:
1351	RETVAL	1688	RETVAL
1352		1689
1353	ssize_t	1690	IV
1354	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1691	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1355	PROTOTYPE: $$$$
1356	CODE:	1692	CODE:
1357	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1693	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1358	OUTPUT:	1694	OUTPUT:
1359	RETVAL	1695	RETVAL
1360		1696
1361	void	1697	void
1362	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1698	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1363	PROTOTYPE: $$$$$;$
1364	PPCODE:	1699	PPCODE:
1365	sv_unmagic (scalar, MMAP_MAGIC);	1700	sv_unmagic (scalar, MMAP_MAGIC);
1366	{	1701	{
1367	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1702	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1368	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1703	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369	if (addr == (void *)-1)	1704	if (addr == (void *)-1)
1370	XSRETURN_NO;	1705	XSRETURN_NO;
1371		1706
		1707	sv_force_normal (scalar);
		1708
1372	/* we store the length in mg_obj, as namlen is I32 :/ */	1709	/* we store the length in mg_obj, as namlen is I32 :/ */
1373	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1710	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374	->mg_obj = (SV *)length;	1711	->mg_obj = (SV *)length;
1375		1712
1376	SvUPGRADE (scalar, SVt_PV); /* nop... */	1713	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1714
1377	if (!(prot & PROT_WRITE))	1715	if (!(prot & PROT_WRITE))
1378	SvREADONLY_on (scalar);	1716	SvREADONLY_on (scalar);
		1717
		1718	if (SvLEN (scalar))
		1719	Safefree (SvPVX (scalar));
1379		1720
1380	SvPVX (scalar) = (char *)addr;	1721	SvPVX (scalar) = (char *)addr;
1381	SvCUR_set (scalar, length);	1722	SvCUR_set (scalar, length);
1382	SvLEN_set (scalar, 0);	1723	SvLEN_set (scalar, 0);
1383	SvPOK_only (scalar);	1724	SvPOK_only (scalar);
…		…
1385	XSRETURN_YES;	1726	XSRETURN_YES;
1386	}	1727	}
1387		1728
1388	void	1729	void
1389	munmap (SV *scalar)	1730	munmap (SV *scalar)
1390	PROTOTYPE: $
1391	CODE:	1731	CODE:
1392	sv_unmagic (scalar, MMAP_MAGIC);	1732	sv_unmagic (scalar, MMAP_MAGIC);
1393		1733
1394	int	1734	int
1395	mlockall (int flags)	1735	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1396	PROTOTYPE: $	1736	ALIAS:
		1737	mprotect = 1
1397	CODE:	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);
1398	#if _POSIX_MEMLOCK	1784	#if _POSIX_MEMLOCK_RANGE
1399	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1785	RETVAL = munlock (addr, len);
1400	extern int mallopt (int, int);
1401	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1402	#endif
1403	mlockall (flags);
1404	#else	1786	#else
1405	RETVAL = -1;	1787	RETVAL = EIO_ENOSYS ();
1406	errno = ENOSYS;
1407	#endif	1788	#endif
		1789	}
1408	OUTPUT:	1790	OUTPUT:
1409	RETVAL	1791	RETVAL
1410		1792
1411	int	1793	int
1412	munlockall ()	1794	munlockall ()
1413	PROTOTYPE:
1414	CODE:	1795	CODE:
1415	#if _POSIX_MEMLOCK	1796	#if _POSIX_MEMLOCK
1416	munlockall ();	1797	munlockall ();
1417	#else	1798	#else
1418	RETVAL = -1;	1799	RETVAL = EIO_ENOSYS ();
1419	errno = ENOSYS;
1420	#endif	1800	#endif
1421	OUTPUT:	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:
1422	RETVAL	1831	RETVAL
1423		1832
1424	void _on_next_submit (SV *cb)	1833	void _on_next_submit (SV *cb)
1425	CODE:	1834	CODE:
1426	SvREFCNT_dec (on_next_submit);	1835	SvREFCNT_dec (on_next_submit);
1427	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1836	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1428		1837
1429	PROTOTYPES: DISABLE	1838	PROTOTYPES: DISABLE
1430		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
1431	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1868	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1432		1869
1433	void	1870	void
1434	cancel (aio_req_ornot req)	1871	cancel (aio_req_ornot req)
1435	CODE:	1872	CODE:

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