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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.165 by root, Sun May 9 20:42:55 2010 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 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 < count)
		200	/* either autosizing succeeded,
		201	* or the file had no extents
		202	* or we luckily had enough space */
		203	break;
		204
		205	/* some kernels overwrite fm_length, so just reset everything */
		206	fiemap->fm_start = req->offs;
		207	fiemap->fm_length = req->size;
		208	fiemap->fm_flags = req->int2;
		209	fiemap->fm_extent_count = 0;
		210
		211	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		212	return;
		213
		214	/* to work around a kernel bug, we allocate one more */
		215	count = fiemap->fm_mapped_extents + 1;
		216
		217	free (fiemap);
		218	}
		219
		220	req->result = 0;
		221
		222	#else
		223	errno = ENOSYS;
		224	#endif
		225	}
		226
		227	/*****************************************************************************/
214		228
215	enum {	229	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	230	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	231	};
218		232
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	233	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	234	typedef eio_req *aio_req_ornot;
		235	typedef eio_wd aio_wd;
223		236
224	static SV *on_next_submit;	237	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	238	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	239	static int max_outstanding;
227		240
228	static s_epipe respipe;	241	static s_epipe respipe;
229		242
230	static void req_destroy (aio_req req);	243	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	244	static void req_cancel (aio_req req);
232		245
233	static void want_poll (void)	246	static void
		247	want_poll (void)
234	{	248	{
235	/* write a dummy byte to the pipe so fh becomes ready */	249	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	250	s_epipe_signal (&respipe);
237	}	251	}
238		252
239	static void done_poll (void)	253	static void
		254	done_poll (void)
240	{	255	{
241	/* read any signals sent by the worker threads */	256	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	257	s_epipe_drain (&respipe);
243	}	258	}
244		259
245	/* must be called at most once */	260	/* must be called at most once */
		261	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	262	req_sv (aio_req req, HV *stash)
247	{	263	{
248	if (!req->self)	264	if (!req->self)
249	{	265	{
250	req->self = (SV *)newHV ();	266	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	267	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	268	}
253		269
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	270	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	271	}
256		272
257	static aio_req SvAIO_REQ (SV *sv)	273	static SV *
		274	newSVaio_wd (aio_wd wd)
		275	{
		276	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		277	}
		278
		279	static aio_req
		280	SvAIO_REQ (SV *sv)
258	{	281	{
259	MAGIC *mg;	282	MAGIC *mg;
260		283
261	if (!SvROK (sv)	284	if (!SvROK (sv)
		285	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	286	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	287	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	288	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	289	croak ("object of class IO::AIO::REQ expected");
266		290
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	291	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		292
269	return mg ? (aio_req)mg->mg_ptr : 0;	293	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	294	}
271		295
		296	static aio_wd
		297	SvAIO_WD (SV *sv)
		298	{
		299	if (!SvROK (sv)
		300	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		301	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		302	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		303
		304	return (aio_wd)(long)SvIVX (SvRV (sv));
		305	}
		306
		307	static void
272	static void aio_grp_feed (aio_req grp)	308	aio_grp_feed (aio_req grp)
273	{	309	{
274	if (grp->sv2 && SvOK (grp->sv2))	310	if (grp->sv2 && SvOK (grp->sv2))
275	{	311	{
276	dSP;	312	dSP;
277		313
…		…
285	FREETMPS;	321	FREETMPS;
286	LEAVE;	322	LEAVE;
287	}	323	}
288	}	324	}
289		325
		326	static void
290	static void req_submit (eio_req *req)	327	req_submit (eio_req *req)
291	{	328	{
292	eio_submit (req);	329	eio_submit (req);
293		330
294	if (expect_false (on_next_submit))	331	if (expect_false (on_next_submit))
295	{	332	{
…		…
302	PUTBACK;	339	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	340	call_sv (cb, G_DISCARD | G_EVAL);
304	}	341	}
305	}	342	}
306		343
		344	static int
307	static int req_invoke (eio_req *req)	345	req_invoke (eio_req *req)
308	{	346	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
313		349
314	if (!EIO_CANCELLED (req) && req->callback)	350	if (!EIO_CANCELLED (req) && req->callback)
315	{	351	{
		352	dSP;
316	static SV *sv_result_cache; /* caches the result integer SV */	353	static SV *sv_result_cache; /* caches the result integer SV */
317	SV *sv_result;	354	SV *sv_result;
318		355
319	ENTER;	356	ENTER;
320	SAVETMPS;	357	SAVETMPS;
…		…
324	/* do not recreate the result IV from scratch each time */	361	/* do not recreate the result IV from scratch each time */
325	if (expect_true (sv_result_cache))	362	if (expect_true (sv_result_cache))
326	{	363	{
327	sv_result = sv_result_cache; sv_result_cache = 0;	364	sv_result = sv_result_cache; sv_result_cache = 0;
328	SvIV_set (sv_result, req->result);	365	SvIV_set (sv_result, req->result);
		366	SvIOK_only (sv_result);
329	}	367	}
330	else	368	else
331	{	369	{
332	sv_result = newSViv (req->result);	370	sv_result = newSViv (req->result);
333	SvREADONLY_on (sv_result);	371	SvREADONLY_on (sv_result);
334	}	372	}
335		373
336	switch (req->type)	374	switch (req->type)
337	{	375	{
		376	case EIO_WD_OPEN:
		377	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		378	break;
		379
338	case EIO_READDIR:	380	case EIO_READDIR:
339	{	381	{
340	SV *rv = &PL_sv_undef;	382	SV *rv = &PL_sv_undef;
341		383
342	if (req->result >= 0)	384	if (req->result >= 0)
…		…
430	case EIO_STATVFS:	472	case EIO_STATVFS:
431	case EIO_FSTATVFS:	473	case EIO_FSTATVFS:
432	{	474	{
433	SV *rv = &PL_sv_undef;	475	SV *rv = &PL_sv_undef;
434		476
		477	#ifndef _WIN32
435	if (req->result >= 0)	478	if (req->result >= 0)
436	{	479	{
437	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
438	HV *hv = newHV ();	481	HV *hv = newHV ();
439		482
…		…
449	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	492	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
450	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	493	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
451	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	494	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
452	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	495	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
453	}	496	}
		497	#endif
454		498
455	PUSHs (rv);	499	PUSHs (rv);
456	}	500	}
457		501
458	break;	502	break;
…		…
474	case EIO_NOP:	518	case EIO_NOP:
475	case EIO_BUSY:	519	case EIO_BUSY:
476	break;	520	break;
477		521
478	case EIO_READLINK:	522	case EIO_READLINK:
		523	case EIO_REALPATH:
479	if (req->result > 0)	524	if (req->result > 0)
480	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	525	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
481	break;	526	break;
482		527
483	case EIO_STAT:	528	case EIO_STAT:
484	case EIO_LSTAT:	529	case EIO_LSTAT:
485	case EIO_FSTAT:	530	case EIO_FSTAT:
486	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	531	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		532
487	PL_laststatval = req->result;	533	if (!(PL_laststatval = req->result))
		534	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
488	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	535	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		536
489	PUSHs (sv_result);	537	PUSHs (sv_result);
		538	break;
		539
		540	case EIO_SEEK:
		541	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
490	break;	542	break;
491		543
492	case EIO_READ:	544	case EIO_READ:
493	{	545	{
494	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	546	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
497	SvSETMAGIC (req->sv2);	549	SvSETMAGIC (req->sv2);
498	PUSHs (sv_result);	550	PUSHs (sv_result);
499	}	551	}
500	break;	552	break;
501		553
502	case EIO_DUP2:	554	case EIO_CUSTOM:
		555	if (req->feed == fiemap)
		556	{
		557	#if HAVE_FIEMAP
		558	if (!req->result)
		559	{
		560	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		561
		562	if (fiemap->fm_extent_count)
		563	{
		564	AV *av = newAV ();
		565	int i;
		566
		567	while (fiemap->fm_mapped_extents)
		568	{
		569	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		570	AV *ext_av = newAV ();
		571
		572	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		573	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		574	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		575	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		576
		577	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		578	}
		579
		580	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		581	}
		582	else
		583	{
		584	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		585	PUSHs (sv_result);
		586	}
		587	}
		588	#endif
		589	}
		590	else
		591	PUSHs (sv_result);
		592	break;
		593
		594	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
503	if (req->result > 0)	595	if (req->result > 0)
504	SvIV_set (sv_result, 0);	596	SvIV_set (sv_result, 0);
505	/* FALLTHROUGH */	597	/* FALLTHROUGH */
506		598
507	default:	599	default:
…		…
527	}	619	}
528		620
529	return !!SvTRUE (ERRSV);	621	return !!SvTRUE (ERRSV);
530	}	622	}
531		623
		624	static void
532	static void req_destroy (aio_req req)	625	req_destroy (aio_req req)
533	{	626	{
534	if (req->self)	627	if (req->self)
535	{	628	{
536	sv_unmagic (req->self, PERL_MAGIC_ext);	629	sv_unmagic (req->self, PERL_MAGIC_ext);
537	SvREFCNT_dec (req->self);	630	SvREFCNT_dec (req->self);
538	}	631	}
539		632
540	SvREFCNT_dec (req->sv1);	633	SvREFCNT_dec (req->sv1);
541	SvREFCNT_dec (req->sv2);	634	SvREFCNT_dec (req->sv2);
		635	SvREFCNT_dec (req->sv3);
		636	SvREFCNT_dec (req->sv4);
542	SvREFCNT_dec (req->callback);	637	SvREFCNT_dec (req->callback);
543		638
544	Safefree (req);	639	free (req);
545	}	640	}
546		641
		642	static void
547	static void req_cancel_subs (aio_req grp)	643	req_cancel_subs (aio_req grp)
548	{	644	{
549	aio_req sub;
550
551	if (grp->type != EIO_GROUP)	645	if (grp->type != EIO_GROUP)
552	return;	646	return;
553		647
554	SvREFCNT_dec (grp->sv2);	648	SvREFCNT_dec (grp->sv2);
555	grp->sv2 = 0;	649	grp->sv2 = 0;
556		650
557	eio_grp_cancel (grp);	651	eio_grp_cancel (grp);
558	}	652	}
559		653
560	static void	654	static void ecb_cold
561	create_respipe (void)	655	create_respipe (void)
562	{	656	{
563	if (s_epipe_renew (&respipe))	657	if (s_epipe_renew (&respipe))
564	croak ("IO::AIO: unable to initialize result pipe");	658	croak ("IO::AIO: unable to initialize result pipe");
565	}	659	}
566		660
567	static void poll_wait (void)	661	static void
		662	poll_wait (void)
568	{	663	{
569	while (eio_nreqs ())	664	while (eio_nreqs ())
570	{	665	{
571	int size;	666	int size;
572		667
…		…
581		676
582	s_epipe_wait (&respipe);	677	s_epipe_wait (&respipe);
583	}	678	}
584	}	679	}
585		680
586	static int poll_cb (void)	681	static int
		682	poll_cb (void)
587	{	683	{
588	for (;;)	684	for (;;)
589	{	685	{
590	int res = eio_poll ();	686	int res = eio_poll ();
591		687
…		…
597		693
598	poll_wait ();	694	poll_wait ();
599	}	695	}
600	}	696	}
601		697
602	static void atfork_child (void)	698	static void ecb_cold
		699	reinit (void)
603	{	700	{
604	create_respipe ();	701	create_respipe ();
		702
		703	if (eio_init (want_poll, done_poll) < 0)
		704	croak ("IO::AIO: unable to initialise eio library");
605	}	705	}
606		706
607	/*****************************************************************************/	707	/*****************************************************************************/
608		708
609	#if !_POSIX_MAPPED_FILES	709	#if !_POSIX_MAPPED_FILES
610	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
611	# define munmap(addr,length) (errno = ENOSYS, -1)	711	# define munmap(addr,length) EIO_ENOSYS ()
		712	#endif
		713
		714	#if !_POSIX_MEMORY_PROTECTION
		715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		716	# define PROT_NONE 0
		717	# define PROT_WRITE 0
		718	# define MAP_PRIVATE 0
		719	# define MAP_SHARED 0
		720	# define MAP_FIXED 0
612	#endif	721	#endif
613		722
614	#define MMAP_MAGIC PERL_MAGIC_ext	723	#define MMAP_MAGIC PERL_MAGIC_ext
615		724
616	static int	725	static int ecb_cold
617	mmap_free (pTHX_ SV *sv, MAGIC *mg)	726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
618	{	727	{
619	int old_errno = errno;	728	int old_errno = errno;
620	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
621	errno = old_errno;	730	errno = old_errno;
622		731
623	mg->mg_obj = 0; /* just in case */	732	mg->mg_obj = 0; /* just in case */
624		733
625	SvREADONLY_off (sv);	734	SvREADONLY_off (sv);
		735
		736	if (SvPVX (sv) != mg->mg_ptr)
		737	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		738
626	SvCUR_set (sv, 0);	739	SvCUR_set (sv, 0);
627	SvLEN_set (sv, 0);
628	SvPVX (sv) = 0;	740	SvPVX (sv) = 0;
629	SvOK_off (sv);	741	SvOK_off (sv);
630		742
631	return 0;	743	return 0;
632	}	744	}
…		…
642	{	754	{
643	SvGETMAGIC (cb_sv);	755	SvGETMAGIC (cb_sv);
644	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	756	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
645	}	757	}
646		758
		759	static aio_req ecb_noinline
		760	dreq (SV *callback)
		761	{
		762	SV *cb_cv;
		763	aio_req req;
		764	int req_pri = next_pri;
		765	next_pri = EIO_PRI_DEFAULT;
		766
		767	cb_cv = get_cb (callback);
		768
		769	req = calloc (sizeof (*req), 1);
		770	if (!req)
		771	croak ("out of memory during eio_req allocation");
		772
		773	req->callback = SvREFCNT_inc (cb_cv);
		774	req->pri = req_pri;
		775
		776	return req;
		777	}
		778
647	#define dREQ \	779	#define dREQ \
648	SV *cb_cv; \	780	aio_req req = dreq (callback); \
649	aio_req req; \
650	int req_pri = next_pri; \
651	next_pri = EIO_PRI_DEFAULT; \
652	\
653	cb_cv = get_cb (callback); \
654	\
655	Newz (0, req, 1, eio_req); \
656	if (!req) \
657	croak ("out of memory during eio_req allocation"); \
658	\
659	req->callback = SvREFCNT_inc (cb_cv); \
660	req->pri = req_pri
661		781
662	#define REQ_SEND \	782	#define REQ_SEND \
663	PUTBACK; \	783	PUTBACK; \
664	req_submit (req); \	784	req_submit (req); \
665	SPAGAIN; \	785	SPAGAIN; \
666	\	786	\
667	if (GIMME_V != G_VOID) \	787	if (GIMME_V != G_VOID) \
668	XPUSHs (req_sv (req, aio_req_stash));	788	XPUSHs (req_sv (req, aio_req_stash));
669		789
		790	ecb_inline void
		791	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		792	{
		793	if (expect_false (SvROK (path)))
		794	{
		795	SV *rv = SvRV (path);
		796	SV *wdob;
		797
		798	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		799	{
		800	path = AvARRAY (rv)[1];
		801	wdob = AvARRAY (rv)[0];
		802
		803	if (SvOK (wdob))
		804	{
		805	*wd = SvAIO_WD (wdob);
		806	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		807	}
		808	else
		809	*wd = EIO_INVALID_WD;
		810	}
		811	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		812	{
		813	*wd = (aio_wd)(long)SvIVX (rv);
		814	*wdsv = SvREFCNT_inc_NN (rv);
		815	*ptr = ".";
		816	return; /* path set to "." */
		817	}
		818	else
		819	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		820	}
		821
		822	*pathsv = newSVsv (path);
		823	*ptr = SvPVbyte_nolen (*pathsv);
		824	}
		825
		826	static void ecb_noinline
		827	req_set_path1 (aio_req req, SV *path)
		828	{
		829	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		830	}
		831
		832	static void ecb_noinline
		833	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		834	{
		835	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		836
		837	switch (SvTYPE (rv))
		838	{
		839	case SVt_PVIO:
		840	case SVt_PVLV:
		841	case SVt_PVGV:
		842	req->type = type_fh;
		843	req->sv1 = newSVsv (fh_or_path);
		844	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		845	break;
		846
		847	default:
		848	req->type = type_path;
		849	req_set_path1 (req, fh_or_path);
		850	break;
		851	}
		852	}
		853
		854	XS(boot_IO__AIO) ecb_cold;
		855
670	MODULE = IO::AIO PACKAGE = IO::AIO	856	MODULE = IO::AIO PACKAGE = IO::AIO
671		857
672	PROTOTYPES: ENABLE	858	PROTOTYPES: ENABLE
673		859
674	BOOT:	860	BOOT:
…		…
678	IV iv;	864	IV iv;
679	} *civ, const_iv[] = {	865	} *civ, const_iv[] = {
680	# define const_niv(name, value) { # name, (IV) value },	866	# define const_niv(name, value) { # name, (IV) value },
681	# define const_iv(name) { # name, (IV) name },	867	# define const_iv(name) { # name, (IV) name },
682	# define const_eio(name) { # name, (IV) EIO_ ## name },	868	# define const_eio(name) { # name, (IV) EIO_ ## name },
		869
		870	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		871
		872	const_iv (ENOSYS)
683	const_iv (EXDEV)	873	const_iv (EXDEV)
684	const_iv (ENOSYS)	874	const_iv (EBADR)
		875
685	const_iv (O_RDONLY)	876	const_iv (O_RDONLY)
686	const_iv (O_WRONLY)	877	const_iv (O_WRONLY)
687	const_iv (O_RDWR)	878	const_iv (O_RDWR)
688	const_iv (O_CREAT)	879	const_iv (O_CREAT)
689	const_iv (O_TRUNC)	880	const_iv (O_TRUNC)
690	const_iv (O_EXCL)	881	const_iv (O_EXCL)
691	const_iv (O_APPEND)	882	const_iv (O_APPEND)
692	#ifndef _WIN32	883
		884	const_iv (O_ASYNC)
		885	const_iv (O_DIRECT)
		886	const_iv (O_NOATIME)
		887
		888	const_iv (O_CLOEXEC)
		889	const_iv (O_NOCTTY)
		890	const_iv (O_NOFOLLOW)
		891	const_iv (O_NONBLOCK)
		892	const_iv (O_EXEC)
		893	const_iv (O_SEARCH)
		894	const_iv (O_DIRECTORY)
		895	const_iv (O_DSYNC)
		896	const_iv (O_RSYNC)
		897	const_iv (O_SYNC)
		898	const_iv (O_TTY_INIT)
		899
693	const_iv (S_IFIFO)	900	const_iv (S_IFIFO)
694	#endif	901	const_iv (S_IFCHR)
		902	const_iv (S_IFBLK)
		903	const_iv (S_IFLNK)
		904	const_iv (S_IFREG)
		905	const_iv (S_IFDIR)
		906	const_iv (S_IFWHT)
		907	const_iv (S_IFSOCK)
		908	const_iv (S_IFMT)
		909
695	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	910	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
696	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	911	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
697	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	912	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
698	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	913	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
699	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	914	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
700	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	915	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		916
		917	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		918	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		919	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		920	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		921	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
701		922
702	const_iv (ST_RDONLY)	923	const_iv (ST_RDONLY)
703	const_iv (ST_NOSUID)	924	const_iv (ST_NOSUID)
704	const_iv (ST_NODEV)	925	const_iv (ST_NODEV)
705	const_iv (ST_NOEXEC)	926	const_iv (ST_NOEXEC)
…		…
710	const_iv (ST_IMMUTABLE)	931	const_iv (ST_IMMUTABLE)
711	const_iv (ST_NOATIME)	932	const_iv (ST_NOATIME)
712	const_iv (ST_NODIRATIME)	933	const_iv (ST_NODIRATIME)
713	const_iv (ST_RELATIME)	934	const_iv (ST_RELATIME)
714		935
		936	const_iv (PROT_NONE)
715	const_iv (PROT_EXEC)	937	const_iv (PROT_EXEC)
716	const_iv (PROT_NONE)
717	const_iv (PROT_READ)	938	const_iv (PROT_READ)
718	const_iv (PROT_WRITE)	939	const_iv (PROT_WRITE)
719		940
720	/*const_iv (MAP_FIXED)*/	941	/*const_iv (MAP_FIXED)*/
721	const_iv (MAP_PRIVATE)	942	const_iv (MAP_PRIVATE)
…		…
727	const_iv (MAP_LOCKED)	948	const_iv (MAP_LOCKED)
728	const_iv (MAP_NORESERVE)	949	const_iv (MAP_NORESERVE)
729	const_iv (MAP_POPULATE)	950	const_iv (MAP_POPULATE)
730	const_iv (MAP_NONBLOCK)	951	const_iv (MAP_NONBLOCK)
731		952
		953	const_iv (FIEMAP_FLAG_SYNC)
		954	const_iv (FIEMAP_FLAG_XATTR)
		955	const_iv (FIEMAP_FLAGS_COMPAT)
		956	const_iv (FIEMAP_EXTENT_LAST)
		957	const_iv (FIEMAP_EXTENT_UNKNOWN)
		958	const_iv (FIEMAP_EXTENT_DELALLOC)
		959	const_iv (FIEMAP_EXTENT_ENCODED)
		960	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		961	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		962	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		963	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		964	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		965	const_iv (FIEMAP_EXTENT_MERGED)
		966	const_iv (FIEMAP_EXTENT_SHARED)
		967
		968	const_iv (SPLICE_F_MOVE)
		969	const_iv (SPLICE_F_NONBLOCK)
		970	const_iv (SPLICE_F_MORE)
		971	const_iv (SPLICE_F_GIFT)
		972
		973	const_iv (SEEK_DATA)
		974	const_iv (SEEK_HOLE)
		975
		976	/* libeio constants */
		977	const_eio (SEEK_SET)
		978	const_eio (SEEK_CUR)
		979	const_eio (SEEK_END)
		980
732	const_iv (MCL_FUTURE)	981	const_eio (MCL_FUTURE)
733	const_iv (MCL_CURRENT)	982	const_eio (MCL_CURRENT)
734		983
735	const_eio (MS_ASYNC)	984	const_eio (MS_ASYNC)
736	const_eio (MS_INVALIDATE)	985	const_eio (MS_INVALIDATE)
737	const_eio (MS_SYNC)	986	const_eio (MS_SYNC)
738		987
739	const_eio (MT_MODIFY)	988	const_eio (MT_MODIFY)
740		989
741	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	990	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
742	const_eio (SYNC_FILE_RANGE_WRITE)	991	const_eio (SYNC_FILE_RANGE_WRITE)
743	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		993
		994	const_eio (FALLOC_FL_KEEP_SIZE)
		995	const_eio (FALLOC_FL_PUNCH_HOLE)
744		996
745	const_eio (READDIR_DENTS)	997	const_eio (READDIR_DENTS)
746	const_eio (READDIR_DIRS_FIRST)	998	const_eio (READDIR_DIRS_FIRST)
747	const_eio (READDIR_STAT_ORDER)	999	const_eio (READDIR_STAT_ORDER)
748	const_eio (READDIR_FOUND_UNKNOWN)	1000	const_eio (READDIR_FOUND_UNKNOWN)
…		…
759	};	1011	};
760		1012
761	aio_stash = gv_stashpv ("IO::AIO" , 1);	1013	aio_stash = gv_stashpv ("IO::AIO" , 1);
762	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1014	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
763	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1015	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1016	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
764		1017
765	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1018	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
766	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1019	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
767		1020
768	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1021	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
769		1022
770	create_respipe ();	1023	reinit ();
771
772	if (eio_init (want_poll, done_poll) < 0)
773	croak ("IO::AIO: unable to initialise eio library");
774
775	/* atfork child called in fifo order, so before eio's handler */
776	X_THREAD_ATFORK (0, 0, atfork_child);
777	}	1024	}
778		1025
779	void	1026	void
		1027	reinit ()
		1028	PROTOTYPE:
		1029
		1030	void
780	max_poll_reqs (int nreqs)	1031	max_poll_reqs (unsigned int nreqs)
781	PROTOTYPE: $	1032	PROTOTYPE: $
782	CODE:	1033	CODE:
783	eio_set_max_poll_reqs (nreqs);	1034	eio_set_max_poll_reqs (nreqs);
784		1035
785	void	1036	void
…		…
787	PROTOTYPE: $	1038	PROTOTYPE: $
788	CODE:	1039	CODE:
789	eio_set_max_poll_time (nseconds);	1040	eio_set_max_poll_time (nseconds);
790		1041
791	void	1042	void
792	min_parallel (int nthreads)	1043	min_parallel (unsigned int nthreads)
793	PROTOTYPE: $	1044	PROTOTYPE: $
794	CODE:	1045	CODE:
795	eio_set_min_parallel (nthreads);	1046	eio_set_min_parallel (nthreads);
796		1047
797	void	1048	void
798	max_parallel (int nthreads)	1049	max_parallel (unsigned int nthreads)
799	PROTOTYPE: $	1050	PROTOTYPE: $
800	CODE:	1051	CODE:
801	eio_set_max_parallel (nthreads);	1052	eio_set_max_parallel (nthreads);
802		1053
803	void	1054	void
804	max_idle (int nthreads)	1055	max_idle (unsigned int nthreads)
805	PROTOTYPE: $	1056	PROTOTYPE: $
806	CODE:	1057	CODE:
807	eio_set_max_idle (nthreads);	1058	eio_set_max_idle (nthreads);
808		1059
809	void	1060	void
		1061	idle_timeout (unsigned int seconds)
		1062	PROTOTYPE: $
		1063	CODE:
		1064	eio_set_idle_timeout (seconds);
		1065
		1066	void
810	max_outstanding (int maxreqs)	1067	max_outstanding (unsigned int maxreqs)
811	PROTOTYPE: $	1068	PROTOTYPE: $
812	CODE:	1069	CODE:
813	max_outstanding = maxreqs;	1070	max_outstanding = maxreqs;
814		1071
815	void	1072	void
		1073	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1074	PPCODE:
		1075	{
		1076	dREQ;
		1077
		1078	req->type = EIO_WD_OPEN;
		1079	req_set_path1 (req, pathname);
		1080
		1081	REQ_SEND;
		1082	}
		1083
		1084	void
816	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1085	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1086	PPCODE:
819	{	1087	{
820	dREQ;	1088	dREQ;
821		1089
822	req->type = EIO_OPEN;	1090	req->type = EIO_OPEN;
823	req->sv1 = newSVsv (pathname);	1091	req_set_path1 (req, pathname);
824	req->ptr1 = SvPVbyte_nolen (req->sv1);
825	req->int1 = flags;	1092	req->int1 = flags;
826	req->int2 = mode;	1093	req->int2 = mode;
827		1094
828	REQ_SEND;	1095	REQ_SEND;
829	}	1096	}
830		1097
831	void	1098	void
832	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
833	PROTOTYPE: $;$
834	ALIAS:	1100	ALIAS:
835	aio_fsync = EIO_FSYNC	1101	aio_fsync = EIO_FSYNC
836	aio_fdatasync = EIO_FDATASYNC	1102	aio_fdatasync = EIO_FDATASYNC
		1103	aio_syncfs = EIO_SYNCFS
837	PPCODE:	1104	PPCODE:
838	{	1105	{
839	int fd = s_fileno_croak (fh, 0);	1106	int fd = s_fileno_croak (fh, 0);
840	dREQ;	1107	dREQ;
841		1108
842	req->type = ix;	1109	req->type = ix;
843	req->sv1 = newSVsv (fh);	1110	req->sv1 = newSVsv (fh);
844	req->int1 = fd;	1111	req->int1 = fd;
845		1112
846	REQ_SEND (req);	1113	REQ_SEND;
847	}	1114	}
848		1115
849	void	1116	void
850	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1117	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
851	PROTOTYPE: $$$$;$
852	PPCODE:	1118	PPCODE:
853	{	1119	{
854	int fd = s_fileno_croak (fh, 0);	1120	int fd = s_fileno_croak (fh, 0);
855	dREQ;	1121	dREQ;
856		1122
…		…
859	req->int1 = fd;	1125	req->int1 = fd;
860	req->offs = offset;	1126	req->offs = offset;
861	req->size = nbytes;	1127	req->size = nbytes;
862	req->int2 = flags;	1128	req->int2 = flags;
863		1129
864	REQ_SEND (req);	1130	REQ_SEND;
865	}	1131	}
866		1132
867	void	1133	void
868	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
869	PROTOTYPE: $;$
870	PPCODE:	1135	PPCODE:
871	{	1136	{
872	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
873	int fd = s_fileno_croak (fh, 0);	1137	int fd = s_fileno_croak (fh, 0);
874	dREQ;	1138	dREQ;
875		1139
876	if (close_pipe < 0)	1140	req->type = EIO_FALLOCATE;
		1141	req->sv1 = newSVsv (fh);
		1142	req->int1 = fd;
		1143	req->int2 = mode;
		1144	req->offs = offset;
		1145	req->size = len;
		1146
		1147	REQ_SEND;
		1148	}
		1149
		1150	void
		1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1152	PPCODE:
		1153	{
		1154	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1155	int fd = s_fileno_croak (fh, 0);
		1156	dREQ;
		1157
		1158	if (expect_false (close_fd < 0))
877	{	1159	{
878	int pipefd [2];	1160	int pipefd [2];
879		1161
		1162	if (
		1163	#ifdef _WIN32
		1164	_pipe (pipefd, 1, _O_BINARY) < 0
		1165	#else
880	if (pipe (pipefd) < 0	1166	pipe (pipefd) < 0
881	|| close (pipefd [1]) < 0
882	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1167	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1168	#endif
		1169	|| close (pipefd [1]) < 0
		1170	)
883	abort (); /*D*/	1171	abort (); /*D*/
884		1172
885	close_pipe = pipefd [0];	1173	close_fd = pipefd [0];
886	}	1174	}
887		1175
888	req->type = EIO_DUP2;	1176	req->type = EIO_DUP2;
889	req->int1 = close_pipe;	1177	req->int1 = close_fd;
890	req->sv2 = newSVsv (fh);	1178	req->sv2 = newSVsv (fh);
891	req->int2 = fd;	1179	req->int2 = fd;
892		1180
893	REQ_SEND (req);	1181	REQ_SEND;
		1182	}
		1183
		1184	void
		1185	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1186	PPCODE:
		1187	{
		1188	int fd = s_fileno_croak (fh, 0);
		1189	dREQ;
		1190
		1191	req->type = EIO_SEEK;
		1192	req->sv1 = newSVsv (fh);
		1193	req->int1 = fd;
		1194	req->offs = SvVAL64 (offset);
		1195	req->int2 = whence;
		1196
		1197	REQ_SEND;
894	}	1198	}
895		1199
896	void	1200	void
897	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1201	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
898	ALIAS:	1202	ALIAS:
899	aio_read = EIO_READ	1203	aio_read = EIO_READ
900	aio_write = EIO_WRITE	1204	aio_write = EIO_WRITE
901	PROTOTYPE: $$$$$;$
902	PPCODE:	1205	PPCODE:
903	{	1206	{
904	STRLEN svlen;	1207	STRLEN svlen;
905	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1208	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
906	char *svptr = SvPVbyte (data, svlen);	1209	char *svptr = SvPVbyte (data, svlen);
…		…
920	}	1223	}
921	else	1224	else
922	{	1225	{
923	/* read: check type and grow scalar as necessary */	1226	/* read: check type and grow scalar as necessary */
924	SvUPGRADE (data, SVt_PV);	1227	SvUPGRADE (data, SVt_PV);
		1228	if (SvLEN (data) >= SvCUR (data))
925	svptr = SvGROW (data, len + dataoffset + 1);	1229	svptr = SvGROW (data, len + dataoffset + 1);
		1230	else if (SvCUR (data) < len + dataoffset)
		1231	croak ("length + dataoffset outside of scalar, and cannot grow");
926	}	1232	}
927		1233
928	{	1234	{
929	dREQ;	1235	dREQ;
930		1236
…		…
946	REQ_SEND;	1252	REQ_SEND;
947	}	1253	}
948	}	1254	}
949		1255
950	void	1256	void
951	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
952	PROTOTYPE: $$;$	1258	ALIAS:
		1259	aio_readlink = EIO_READLINK
		1260	aio_realpath = EIO_REALPATH
953	PPCODE:	1261	PPCODE:
954	{	1262	{
955	SV *data;
956	dREQ;	1263	dREQ;
957		1264
958	req->type = EIO_READLINK;	1265	req->type = ix;
959	req->sv1 = newSVsv (path);	1266	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1267
962	REQ_SEND;	1268	REQ_SEND;
963	}	1269	}
964		1270
965	void	1271	void
966	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1272	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
967	PROTOTYPE: $$$$;$
968	PPCODE:	1273	PPCODE:
969	{	1274	{
970	int ifd = s_fileno_croak (in_fh , 0);	1275	int ifd = s_fileno_croak (in_fh , 0);
971	int ofd = s_fileno_croak (out_fh, 1);	1276	int ofd = s_fileno_croak (out_fh, 1);
972	dREQ;	1277	dREQ;
…		…
982	REQ_SEND;	1287	REQ_SEND;
983	}	1288	}
984		1289
985	void	1290	void
986	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1291	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
987	PROTOTYPE: $$$;$
988	PPCODE:	1292	PPCODE:
989	{	1293	{
990	int fd = s_fileno_croak (fh, 0);	1294	int fd = s_fileno_croak (fh, 0);
991	dREQ;	1295	dREQ;
992		1296
…		…
1007	aio_statvfs = EIO_STATVFS	1311	aio_statvfs = EIO_STATVFS
1008	PPCODE:	1312	PPCODE:
1009	{	1313	{
1010	dREQ;	1314	dREQ;
1011		1315
1012	req->sv1 = newSVsv (fh_or_path);	1316	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1013
1014	if (SvPOK (req->sv1))
1015	{
1016	req->type = ix;
1017	req->ptr1 = SvPVbyte_nolen (req->sv1);
1018	}
1019	else
1020	{
1021	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1022	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1023	}
1024		1317
1025	REQ_SEND;	1318	REQ_SEND;
1026	}	1319	}
		1320
		1321	UV
		1322	major (UV dev)
		1323	ALIAS:
		1324	minor = 1
		1325	CODE:
		1326	RETVAL = ix ? major (dev) : minor (dev);
		1327	OUTPUT:
		1328	RETVAL
		1329
		1330	UV
		1331	makedev (UV maj, UV min)
		1332	CODE:
		1333	RETVAL = makedev (maj, min);
		1334	OUTPUT:
		1335	RETVAL
1027		1336
1028	void	1337	void
1029	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1338	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1030	PPCODE:	1339	PPCODE:
1031	{	1340	{
1032	dREQ;	1341	dREQ;
1033		1342
1034	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1035	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1344	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1036	req->sv1 = newSVsv (fh_or_path);	1345	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1037
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_UTIME;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FUTIME;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1346
1049	REQ_SEND;	1347	REQ_SEND;
1050	}	1348	}
1051		1349
1052	void	1350	void
1053	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1351	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1054	PPCODE:	1352	PPCODE:
1055	{	1353	{
1056	dREQ;	1354	dREQ;
1057		1355
1058	req->sv1 = newSVsv (fh_or_path);
1059	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1060		1357	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1061	if (SvPOK (req->sv1))
1062	{
1063	req->type = EIO_TRUNCATE;
1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
1065	}
1066	else
1067	{
1068	req->type = EIO_FTRUNCATE;
1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1070	}
1071		1358
1072	REQ_SEND;	1359	REQ_SEND;
1073	}	1360	}
1074		1361
1075	void	1362	void
1076	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1363	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1077	ALIAS:
1078	aio_chmod = EIO_CHMOD
1079	aio_mkdir = EIO_MKDIR
1080	PPCODE:	1364	PPCODE:
1081	{	1365	{
1082	dREQ;	1366	dREQ;
1083		1367
1084	req->int2 = mode;	1368	req->int2 = mode;
1085	req->sv1 = newSVsv (fh_or_path);	1369	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1086
1087	if (SvPOK (req->sv1))
1088	{
1089	req->type = ix;
1090	req->ptr1 = SvPVbyte_nolen (req->sv1);
1091	}
1092	else
1093	{
1094	req->type = EIO_FCHMOD;
1095	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1096	}
1097		1370
1098	REQ_SEND;	1371	REQ_SEND;
1099	}	1372	}
1100		1373
1101	void	1374	void
…		…
1104	{	1377	{
1105	dREQ;	1378	dREQ;
1106		1379
1107	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1108	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1381	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1109	req->sv1 = newSVsv (fh_or_path);	1382	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1110
1111	if (SvPOK (req->sv1))
1112	{
1113	req->type = EIO_CHOWN;
1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
1115	}
1116	else
1117	{
1118	req->type = EIO_FCHOWN;
1119	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1120	}
1121		1383
1122	REQ_SEND;	1384	REQ_SEND;
1123	}	1385	}
1124		1386
1125	void	1387	void
…		…
1127	PPCODE:	1389	PPCODE:
1128	{	1390	{
1129	dREQ;	1391	dREQ;
1130		1392
1131	req->type = EIO_READDIR;	1393	req->type = EIO_READDIR;
1132	req->sv1 = newSVsv (pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1394	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1135		1395
1136	if (flags & EIO_READDIR_DENTS)	1396	if (flags & EIO_READDIR_DENTS)
1137	req->int1 |= EIO_READDIR_CUSTOM2;	1397	req->int1 |= EIO_READDIR_CUSTOM2;
1138		1398
		1399	req_set_path1 (req, pathname);
		1400
1139	REQ_SEND;	1401	REQ_SEND;
		1402	}
		1403
		1404	void
		1405	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1406	PPCODE:
		1407	{
		1408	dREQ;
		1409
		1410	req->type = EIO_MKDIR;
		1411	req->int2 = mode;
		1412	req_set_path1 (req, pathname);
		1413
		1414	REQ_SEND;
1140	}	1415	}
1141		1416
1142	void	1417	void
1143	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1418	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1144	ALIAS:	1419	ALIAS:
…		…
1148	PPCODE:	1423	PPCODE:
1149	{	1424	{
1150	dREQ;	1425	dREQ;
1151		1426
1152	req->type = ix;	1427	req->type = ix;
1153	req->sv1 = newSVsv (pathname);	1428	req_set_path1 (req, pathname);
1154	req->ptr1 = SvPVbyte_nolen (req->sv1);
1155		1429
1156	REQ_SEND;	1430	REQ_SEND;
1157	}	1431	}
1158		1432
1159	void	1433	void
…		…
1162	aio_link = EIO_LINK	1436	aio_link = EIO_LINK
1163	aio_symlink = EIO_SYMLINK	1437	aio_symlink = EIO_SYMLINK
1164	aio_rename = EIO_RENAME	1438	aio_rename = EIO_RENAME
1165	PPCODE:	1439	PPCODE:
1166	{	1440	{
		1441	eio_wd wd2 = 0;
1167	dREQ;	1442	dREQ;
1168		1443
1169	req->type = ix;	1444	req->type = ix;
1170	req->sv1 = newSVsv (oldpath);	1445	req_set_path1 (req, oldpath);
1171	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1172	req->sv2 = newSVsv (newpath);	1447	req->int3 = (long)wd2;
1173	req->ptr2 = SvPVbyte_nolen (req->sv2);
1174		1448
1175	REQ_SEND;	1449	REQ_SEND;
1176	}	1450	}
1177		1451
1178	void	1452	void
…		…
1180	PPCODE:	1454	PPCODE:
1181	{	1455	{
1182	dREQ;	1456	dREQ;
1183		1457
1184	req->type = EIO_MKNOD;	1458	req->type = EIO_MKNOD;
1185	req->sv1 = newSVsv (pathname);
1186	req->ptr1 = SvPVbyte_nolen (req->sv1);
1187	req->int2 = (mode_t)mode;	1459	req->int2 = (mode_t)mode;
1188	req->offs = dev;	1460	req->offs = dev;
		1461	req_set_path1 (req, pathname);
1189		1462
1190	REQ_SEND;	1463	REQ_SEND;
1191	}	1464	}
1192		1465
1193	void	1466	void
1194	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1467	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1195	ALIAS:	1468	ALIAS:
1196	aio_mtouch = EIO_MTOUCH	1469	aio_mtouch = EIO_MTOUCH
1197	aio_msync = EIO_MSYNC	1470	aio_msync = EIO_MSYNC
1198	PROTOTYPE: $$$$;$
1199	PPCODE:	1471	PPCODE:
1200	{	1472	{
1201	STRLEN svlen;	1473	STRLEN svlen;
		1474	char *svptr = SvPVbyte (data, svlen);
1202	UV len = SvUV (length);	1475	UV len = SvUV (length);
1203	char *svptr = SvPVbyte (data, svlen);
1204		1476
1205	if (offset < 0)	1477	if (offset < 0)
1206	offset += svlen;	1478	offset += svlen;
1207		1479
1208	if (offset < 0 || offset > svlen)	1480	if (offset < 0 || offset > svlen)
…		…
1213		1485
1214	{	1486	{
1215	dREQ;	1487	dREQ;
1216		1488
1217	req->type = ix;	1489	req->type = ix;
1218	req->size = len;
1219	req->sv2 = SvREFCNT_inc (data);	1490	req->sv2 = SvREFCNT_inc (data);
1220	req->ptr2 = (char *)svptr + offset;	1491	req->ptr2 = (char *)svptr + offset;
		1492	req->size = len;
1221	req->int1 = flags;	1493	req->int1 = flags;
1222		1494
1223	REQ_SEND;	1495	REQ_SEND;
1224	}	1496	}
1225	}	1497	}
1226		1498
1227	void	1499	void
		1500	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1501	PPCODE:
		1502	{
		1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
		1505	UV len = SvUV (length);
		1506
		1507	if (offset < 0)
		1508	offset += svlen;
		1509
		1510	if (offset < 0 || offset > svlen)
		1511	croak ("offset outside of scalar");
		1512
		1513	if (!SvOK (length) || len + offset > svlen)
		1514	len = svlen - offset;
		1515
		1516	{
		1517	dREQ;
		1518
		1519	req->type = EIO_MLOCK;
		1520	req->sv2 = SvREFCNT_inc (data);
		1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
		1523
		1524	REQ_SEND;
		1525	}
		1526	}
		1527
		1528	void
		1529	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1530	PPCODE:
		1531	{
		1532	dREQ;
		1533
		1534	req->type = EIO_MLOCKALL;
		1535	req->int1 = flags;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
		1541	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	int fd = s_fileno_croak (fh, 0);
		1545	dREQ;
		1546
		1547	req->type = EIO_CUSTOM;
		1548	req->sv1 = newSVsv (fh);
		1549	req->int1 = fd;
		1550
		1551	req->feed = fiemap;
		1552	#if HAVE_FIEMAP
		1553	/* keep our fingers crossed that the next two types are 64 bit */
		1554	req->offs = start;
		1555	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1556	req->int2 = flags;
		1557	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1558	#endif
		1559
		1560	REQ_SEND;
		1561	}
		1562
		1563	void
1228	aio_busy (double delay, SV *callback=&PL_sv_undef)	1564	aio_busy (double delay, SV *callback=&PL_sv_undef)
1229	PPCODE:	1565	PPCODE:
1230	{	1566	{
1231	dREQ;	1567	dREQ;
1232		1568
…		…
1236	REQ_SEND;	1572	REQ_SEND;
1237	}	1573	}
1238		1574
1239	void	1575	void
1240	aio_group (SV *callback=&PL_sv_undef)	1576	aio_group (SV *callback=&PL_sv_undef)
1241	PROTOTYPE: ;$
1242	PPCODE:	1577	PPCODE:
1243	{	1578	{
1244	dREQ;	1579	dREQ;
1245		1580
1246	req->type = EIO_GROUP;	1581	req->type = EIO_GROUP;
…		…
1263	REQ_SEND;	1598	REQ_SEND;
1264	}	1599	}
1265		1600
1266	int	1601	int
1267	aioreq_pri (int pri = 0)	1602	aioreq_pri (int pri = 0)
1268	PROTOTYPE: ;$
1269	CODE:	1603	CODE:
1270	RETVAL = next_pri;	1604	RETVAL = next_pri;
1271	if (items > 0)	1605	if (items > 0)
1272	{	1606	{
1273	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1607	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1285	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1619	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1286	next_pri = nice;	1620	next_pri = nice;
1287		1621
1288	void	1622	void
1289	flush ()	1623	flush ()
1290	PROTOTYPE:
1291	CODE:	1624	CODE:
1292	while (eio_nreqs ())	1625	while (eio_nreqs ())
1293	{	1626	{
1294	poll_wait ();	1627	poll_wait ();
1295	poll_cb ();	1628	poll_cb ();
1296	}	1629	}
1297		1630
1298	int	1631	int
1299	poll()	1632	poll ()
1300	PROTOTYPE:
1301	CODE:	1633	CODE:
1302	poll_wait ();	1634	poll_wait ();
1303	RETVAL = poll_cb ();	1635	RETVAL = poll_cb ();
1304	OUTPUT:	1636	OUTPUT:
1305	RETVAL	1637	RETVAL
1306		1638
1307	int	1639	int
1308	poll_fileno()	1640	poll_fileno ()
1309	PROTOTYPE:
1310	CODE:	1641	CODE:
1311	RETVAL = s_epipe_fd (&respipe);	1642	RETVAL = s_epipe_fd (&respipe);
1312	OUTPUT:	1643	OUTPUT:
1313	RETVAL	1644	RETVAL
1314		1645
1315	int	1646	int
1316	poll_cb(...)	1647	poll_cb (...)
1317	PROTOTYPE:	1648	PROTOTYPE:
1318	CODE:	1649	CODE:
1319	RETVAL = poll_cb ();	1650	RETVAL = poll_cb ();
1320	OUTPUT:	1651	OUTPUT:
1321	RETVAL	1652	RETVAL
1322		1653
1323	void	1654	void
1324	poll_wait()	1655	poll_wait ()
1325	PROTOTYPE:
1326	CODE:	1656	CODE:
1327	poll_wait ();	1657	poll_wait ();
1328		1658
1329	int	1659	int
1330	nreqs()	1660	nreqs ()
1331	PROTOTYPE:
1332	CODE:	1661	CODE:
1333	RETVAL = eio_nreqs ();	1662	RETVAL = eio_nreqs ();
1334	OUTPUT:	1663	OUTPUT:
1335	RETVAL	1664	RETVAL
1336		1665
1337	int	1666	int
1338	nready()	1667	nready ()
1339	PROTOTYPE:
1340	CODE:	1668	CODE:
1341	RETVAL = eio_nready ();	1669	RETVAL = eio_nready ();
1342	OUTPUT:	1670	OUTPUT:
1343	RETVAL	1671	RETVAL
1344		1672
1345	int	1673	int
1346	npending()	1674	npending ()
1347	PROTOTYPE:
1348	CODE:	1675	CODE:
1349	RETVAL = eio_npending ();	1676	RETVAL = eio_npending ();
1350	OUTPUT:	1677	OUTPUT:
1351	RETVAL	1678	RETVAL
1352		1679
1353	int	1680	int
1354	nthreads()	1681	nthreads ()
1355	PROTOTYPE:
1356	CODE:	1682	CODE:
1357	RETVAL = eio_nthreads ();	1683	RETVAL = eio_nthreads ();
1358	OUTPUT:	1684	OUTPUT:
1359	RETVAL	1685	RETVAL
1360		1686
1361	int	1687	int
1362	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1688	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1363	PROTOTYPE: $$$$
1364	CODE:	1689	CODE:
1365	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1366	RETVAL = posix_fadvise (fh, offset, length, advice);	1690	RETVAL = posix_fadvise (fh, offset, length, advice);
1367	#else
1368	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1369	#endif
1370	OUTPUT:	1691	OUTPUT:
1371	RETVAL	1692	RETVAL
1372		1693
1373	ssize_t	1694	IV
1374	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1695	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1375	PROTOTYPE: $$$$
1376	CODE:	1696	CODE:
1377	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1378	OUTPUT:	1698	OUTPUT:
1379	RETVAL	1699	RETVAL
1380		1700
1381	void	1701	void
1382	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1702	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1383	PROTOTYPE: $$$$$;$
1384	PPCODE:	1703	PPCODE:
1385	sv_unmagic (scalar, MMAP_MAGIC);	1704	sv_unmagic (scalar, MMAP_MAGIC);
1386	{	1705	{
1387	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1706	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1388	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389	if (addr == (void *)-1)	1708	if (addr == (void *)-1)
1390	XSRETURN_NO;	1709	XSRETURN_NO;
1391		1710
		1711	sv_force_normal (scalar);
		1712
1392	/* we store the length in mg_obj, as namlen is I32 :/ */	1713	/* we store the length in mg_obj, as namlen is I32 :/ */
1393	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1714	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394	->mg_obj = (SV *)length;	1715	->mg_obj = (SV *)length;
1395		1716
1396	SvUPGRADE (scalar, SVt_PV); /* nop... */	1717	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1718
1397	if (!(prot & PROT_WRITE))	1719	if (!(prot & PROT_WRITE))
1398	SvREADONLY_on (scalar);	1720	SvREADONLY_on (scalar);
		1721
		1722	if (SvLEN (scalar))
		1723	Safefree (SvPVX (scalar));
1399		1724
1400	SvPVX (scalar) = (char *)addr;	1725	SvPVX (scalar) = (char *)addr;
1401	SvCUR_set (scalar, length);	1726	SvCUR_set (scalar, length);
1402	SvLEN_set (scalar, 0);	1727	SvLEN_set (scalar, 0);
1403	SvPOK_only (scalar);	1728	SvPOK_only (scalar);
…		…
1405	XSRETURN_YES;	1730	XSRETURN_YES;
1406	}	1731	}
1407		1732
1408	void	1733	void
1409	munmap (SV *scalar)	1734	munmap (SV *scalar)
1410	PROTOTYPE: $
1411	CODE:	1735	CODE:
1412	sv_unmagic (scalar, MMAP_MAGIC);	1736	sv_unmagic (scalar, MMAP_MAGIC);
1413		1737
1414	int	1738	int
1415	mlockall (int flags)	1739	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1416	PROTOTYPE: $	1740	ALIAS:
		1741	mprotect = 1
1417	CODE:	1742	CODE:
		1743	{
		1744	STRLEN svlen;
		1745	void *addr = SvPVbyte (scalar, svlen);
		1746	size_t len = SvUV (length);
		1747
		1748	if (offset < 0)
		1749	offset += svlen;
		1750
		1751	if (offset < 0 || offset > svlen)
		1752	croak ("offset outside of scalar");
		1753
		1754	if (!SvOK (length) || len + offset > svlen)
		1755	len = svlen - offset;
		1756
		1757	addr = (void *)(((intptr_t)addr) + offset);
		1758	eio_page_align (&addr, &len);
		1759
		1760	switch (ix)
		1761	{
		1762	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1763	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1764	}
		1765	}
		1766	OUTPUT:
		1767	RETVAL
		1768
		1769	int
		1770	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1771	CODE:
		1772	{
		1773	STRLEN svlen;
		1774	void *addr = SvPVbyte (scalar, svlen);
		1775	size_t len = SvUV (length);
		1776
		1777	if (offset < 0)
		1778	offset += svlen;
		1779
		1780	if (offset < 0 || offset > svlen)
		1781	croak ("offset outside of scalar");
		1782
		1783	if (!SvOK (length) || len + offset > svlen)
		1784	len = svlen - offset;
		1785
		1786	addr = (void *)(((intptr_t)addr) + offset);
		1787	eio_page_align (&addr, &len);
1418	#if _POSIX_MEMLOCK	1788	#if _POSIX_MEMLOCK_RANGE
1419	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1789	RETVAL = munlock (addr, len);
1420	extern int mallopt (int, int);
1421	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1422	#endif
1423	mlockall (flags);
1424	#else	1790	#else
1425	RETVAL = -1;	1791	RETVAL = EIO_ENOSYS ();
1426	errno = ENOSYS;
1427	#endif	1792	#endif
		1793	}
1428	OUTPUT:	1794	OUTPUT:
1429	RETVAL	1795	RETVAL
1430		1796
1431	int	1797	int
1432	munlockall ()	1798	munlockall ()
1433	PROTOTYPE:
1434	CODE:	1799	CODE:
1435	#if _POSIX_MEMLOCK	1800	#if _POSIX_MEMLOCK
1436	munlockall ();	1801	munlockall ();
1437	#else	1802	#else
1438	RETVAL = -1;	1803	RETVAL = EIO_ENOSYS ();
1439	errno = ENOSYS;
1440	#endif	1804	#endif
1441	OUTPUT:	1805	OUTPUT:
		1806	RETVAL
		1807
		1808	int
		1809	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1810	CODE:
		1811	{
		1812	#if HAVE_LINUX_SPLICE
		1813	loff_t off_in_, off_out_;
		1814	RETVAL = splice (
		1815	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1816	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1817	length, flags
		1818	);
		1819	#else
		1820	RETVAL = EIO_ENOSYS ();
		1821	#endif
		1822	}
		1823	OUTPUT:
		1824	RETVAL
		1825
		1826	int
		1827	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1828	CODE:
		1829	#if HAVE_LINUX_SPLICE
		1830	RETVAL = tee (rfh, wfh, length, flags);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	OUTPUT:
1442	RETVAL	1835	RETVAL
1443		1836
1444	void _on_next_submit (SV *cb)	1837	void _on_next_submit (SV *cb)
1445	CODE:	1838	CODE:
1446	SvREFCNT_dec (on_next_submit);	1839	SvREFCNT_dec (on_next_submit);
1447	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1448		1841
1449	PROTOTYPES: DISABLE	1842	PROTOTYPES: DISABLE
1450		1843
		1844	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1845
		1846	BOOT:
		1847	{
		1848	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1849	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1850	}
		1851
		1852	void
		1853	DESTROY (SV *self)
		1854	CODE:
		1855	{
		1856	aio_wd wd = SvAIO_WD (self);
		1857	#if HAVE_AT
		1858	{
		1859	SV *callback = &PL_sv_undef;
		1860	dREQ; /* clobbers next_pri :/ */
		1861	next_pri = req->pri; /* restore next_pri */
		1862	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1863	req->type = EIO_WD_CLOSE;
		1864	req->wd = wd;
		1865	REQ_SEND;
		1866	}
		1867	#else
		1868	eio_wd_close_sync (wd);
		1869	#endif
		1870	}
		1871
1451	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1872	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1452		1873
1453	void	1874	void
1454	cancel (aio_req_ornot req)	1875	cancel (aio_req_ornot req)
1455	CODE:	1876	CODE:

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