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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.163 by root, Sun Jan 10 23:44:02 2010 UTC vs.
Revision 1.227 by root, Sat Sep 7 23:18:23 2013 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
191	# define MAP_HUGETLB 0
192	#endif
193	#ifndef MAP_LOCKED
194	# define MAP_LOCKED 0
195	#endif
196	#ifndef MAP_NORESERVE
197	# define MAP_NORESERVE 0
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif
205		144
206	#ifndef PAGESIZE	145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#if PAGESIZE <= 0
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	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (actually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		224	return;
		225
		226	if (!incmap->fm_mapped_extents)
		227	goto done;
		228
		229	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		230	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		231	errno = ENOMEM;
		232	if (!fiemap)
		233	return;
		234
		235	req->ptr1 = fiemap;
		236
		237	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		238	{
		239	struct fiemap_extent *e = incmap->fm_extents + count;
		240
		241	if (e->fe_logical + e->fe_length >= end_offset)
		242	goto done;
		243
		244	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		245
		246	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		247	goto done;
		248
		249	}
		250	}
		251
		252	done:
		253	req->result = 0;
		254
		255	#else
		256	errno = ENOSYS;
		257	#endif
		258	}
		259
		260	/*****************************************************************************/
214		261
215	enum {	262	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	264	};
218		265
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
223		269
224	static SV *on_next_submit;	270	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	271	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	272	static int max_outstanding;
227		273
228	static s_epipe respipe;	274	static s_epipe respipe;
229		275
230	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
232		278
233	static void want_poll (void)	279	static void
		280	want_poll (void)
234	{	281	{
235	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	283	s_epipe_signal (&respipe);
237	}	284	}
238		285
239	static void done_poll (void)	286	static void
		287	done_poll (void)
240	{	288	{
241	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	290	s_epipe_drain (&respipe);
243	}	291	}
244		292
245	/* must be called at most once */	293	/* must be called at most once */
		294	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	295	req_sv (aio_req req, HV *stash)
247	{	296	{
248	if (!req->self)	297	if (!req->self)
249	{	298	{
250	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	301	}
253		302
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	304	}
256		305
257	static aio_req SvAIO_REQ (SV *sv)	306	static SV *
		307	newSVaio_wd (aio_wd wd)
		308	{
		309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		310	}
		311
		312	static aio_req
		313	SvAIO_REQ (SV *sv)
258	{	314	{
259	MAGIC *mg;	315	MAGIC *mg;
260		316
261	if (!SvROK (sv)	317	if (!SvROK (sv)
		318	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	319	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	320	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	321	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	322	croak ("object of class IO::AIO::REQ expected");
266		323
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		325
269	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	327	}
271		328
		329	static aio_wd
		330	SvAIO_WD (SV *sv)
		331	{
		332	if (!SvROK (sv)
		333	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		336
		337	return (aio_wd)(long)SvIVX (SvRV (sv));
		338	}
		339
		340	static void
272	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
273	{	342	{
274	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
275	{	344	{
276	dSP;	345	dSP;
277		346
…		…
285	FREETMPS;	354	FREETMPS;
286	LEAVE;	355	LEAVE;
287	}	356	}
288	}	357	}
289		358
		359	static void
290	static void req_submit (eio_req *req)	360	req_submit (eio_req *req)
291	{	361	{
292	eio_submit (req);	362	eio_submit (req);
293		363
294	if (expect_false (on_next_submit))	364	if (expect_false (on_next_submit))
295	{	365	{
…		…
302	PUTBACK;	372	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	373	call_sv (cb, G_DISCARD | G_EVAL);
304	}	374	}
305	}	375	}
306		376
		377	static int
307	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
308	{	379	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
313		382
314	if (!EIO_CANCELLED (req) && req->callback)	383	if (!EIO_CANCELLED (req) && req->callback)
315	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
316	ENTER;	389	ENTER;
317	SAVETMPS;	390	SAVETMPS;
318	PUSHMARK (SP);	391	PUSHMARK (SP);
319	EXTEND (SP, 1);	392	EXTEND (SP, 1);
320		393
		394	/* do not recreate the result IV from scratch each time */
		395	if (expect_true (sv_result_cache))
		396	{
		397	sv_result = sv_result_cache; sv_result_cache = 0;
		398	SvIV_set (sv_result, req->result);
		399	SvIOK_only (sv_result);
		400	}
		401	else
		402	{
		403	sv_result = newSViv (req->result);
		404	SvREADONLY_on (sv_result);
		405	}
		406
321	switch (req->type)	407	switch (req->type)
322	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
323	case EIO_READDIR:	413	case EIO_READDIR:
324	{	414	{
325	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
326		416
327	if (req->result >= 0)	417	if (req->result >= 0)
…		…
415	case EIO_STATVFS:	505	case EIO_STATVFS:
416	case EIO_FSTATVFS:	506	case EIO_FSTATVFS:
417	{	507	{
418	SV *rv = &PL_sv_undef;	508	SV *rv = &PL_sv_undef;
419		509
		510	#ifndef _WIN32
420	if (req->result >= 0)	511	if (req->result >= 0)
421	{	512	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	513	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	514	HV *hv = newHV ();
		515	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		516	* chooses to make it a struct.
		517	*/
		518	unsigned long fsid = 0;
		519	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
424		520
425	rv = sv_2mortal (newRV_noinc ((SV *)hv));	521	rv = sv_2mortal (newRV_noinc ((SV *)hv));
426		522
427	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	523	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
428	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	524	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
430	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	526	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
431	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	527	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
432	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	528	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
433	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	529	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	530	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);	531	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	532	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);	533	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	534	}
		535	#endif
439		536
440	PUSHs (rv);	537	PUSHs (rv);
441	}	538	}
442		539
443	break;	540	break;
…		…
459	case EIO_NOP:	556	case EIO_NOP:
460	case EIO_BUSY:	557	case EIO_BUSY:
461	break;	558	break;
462		559
463	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
464	if (req->result > 0)	562	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	563	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	564	break;
467		565
468	case EIO_STAT:	566	case EIO_STAT:
469	case EIO_LSTAT:	567	case EIO_LSTAT:
470	case EIO_FSTAT:	568	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
472	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
		576	break;
		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
475	break;	580	break;
476		581
477	case EIO_READ:	582	case EIO_READ:
478	{	583	{
479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	584	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	586	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	587	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	588	PUSHs (sv_result);
484	}	589	}
485	break;	590	break;
486		591
487	case EIO_DUP2:	592	case EIO_CUSTOM:
		593	if (req->feed == fiemap)
		594	{
		595	#if HAVE_FIEMAP
		596	if (!req->result)
		597	{
		598	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		599
		600	if (fiemap->fm_extent_count)
		601	{
		602	AV *av = newAV ();
		603	int i;
		604
		605	while (fiemap->fm_mapped_extents)
		606	{
		607	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		608	AV *ext_av = newAV ();
		609
		610	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		611	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		612	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		613	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		614
		615	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		616	}
		617
		618	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		619	}
		620	else
		621	{
		622	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		623	PUSHs (sv_result);
		624	}
		625	}
		626	#endif
		627	}
		628	else
		629	PUSHs (sv_result);
		630	break;
		631
		632	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	633	if (req->result > 0)
489	req->result = 0;	634	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	635	/* FALLTHROUGH */
491		636
492	default:	637	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
494	break;	639	break;
495	}	640	}
496		641
497	errno = req->errorno;	642	errno = req->errorno;
498		643
499	PUTBACK;	644	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	646	SPAGAIN;
502		647
		648	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		649	SvREFCNT_dec (sv_result);
		650	else
		651	sv_result_cache = sv_result;
		652
503	FREETMPS;	653	FREETMPS;
504	LEAVE;	654	LEAVE;
505		655
506	PUTBACK;	656	PUTBACK;
507	}	657	}
508		658
509	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
510	}	660	}
511		661
		662	static void
512	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
513	{	664	{
514	if (req->self)	665	if (req->self)
515	{	666	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
518	}	669	}
519		670
520	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
523		676
524	Safefree (req);	677	free (req);
525	}	678	}
526		679
		680	static void
527	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
528	{	682	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
532	return;	684	return;
533		685
534	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	687	grp->sv2 = 0;
536		688
537	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
538	}	690	}
539		691
540	static void	692	static void ecb_cold
541	create_respipe (void)	693	create_respipe (void)
542	{	694	{
543	if (s_epipe_renew (&respipe))	695	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	696	croak ("IO::AIO: unable to initialize result pipe");
545	}	697	}
546		698
547	static void poll_wait (void)	699	static void
		700	poll_wait (void)
548	{	701	{
549	while (eio_nreqs ())	702	while (eio_nreqs ())
550	{	703	{
551	int size;	704	int size;
552		705
…		…
561		714
562	s_epipe_wait (&respipe);	715	s_epipe_wait (&respipe);
563	}	716	}
564	}	717	}
565		718
566	static int poll_cb (void)	719	static int
		720	poll_cb (void)
567	{	721	{
568	for (;;)	722	for (;;)
569	{	723	{
570	int res = eio_poll ();	724	int res = eio_poll ();
571		725
…		…
577		731
578	poll_wait ();	732	poll_wait ();
579	}	733	}
580	}	734	}
581		735
582	static void atfork_child (void)	736	static void ecb_cold
		737	reinit (void)
583	{	738	{
584	create_respipe ();	739	create_respipe ();
		740
		741	if (eio_init (want_poll, done_poll) < 0)
		742	croak ("IO::AIO: unable to initialise eio library");
585	}	743	}
586		744
587	/*****************************************************************************/	745	/*****************************************************************************/
588		746
589	#if !_POSIX_MAPPED_FILES	747	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
591	# define munmap(addr,length) (errno = ENOSYS, -1)	749	# define munmap(addr,length) EIO_ENOSYS ()
		750	#endif
		751
		752	#if !_POSIX_MEMORY_PROTECTION
		753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		754	# define PROT_NONE 0
		755	# define PROT_WRITE 0
		756	# define MAP_PRIVATE 0
		757	# define MAP_SHARED 0
		758	# define MAP_FIXED 0
592	#endif	759	#endif
593		760
594	#define MMAP_MAGIC PERL_MAGIC_ext	761	#define MMAP_MAGIC PERL_MAGIC_ext
595		762
596	static int	763	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	765	{
599	int old_errno = errno;	766	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	768	errno = old_errno;
602		769
603	mg->mg_obj = 0; /* just in case */	770	mg->mg_obj = 0; /* just in case */
604		771
605	SvREADONLY_off (sv);	772	SvREADONLY_off (sv);
		773
		774	if (SvPVX (sv) != mg->mg_ptr)
		775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		776
606	SvCUR_set (sv, 0);	777	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	778	SvPVX (sv) = 0;
609	SvOK_off (sv);	779	SvOK_off (sv);
610		780
611	return 0;	781	return 0;
612	}	782	}
…		…
622	{	792	{
623	SvGETMAGIC (cb_sv);	793	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	795	}
626		796
		797	static aio_req ecb_noinline
		798	dreq (SV *callback)
		799	{
		800	SV *cb_cv;
		801	aio_req req;
		802	int req_pri = next_pri;
		803	next_pri = EIO_PRI_DEFAULT;
		804
		805	cb_cv = get_cb (callback);
		806
		807	req = calloc (sizeof (*req), 1);
		808	if (!req)
		809	croak ("out of memory during eio_req allocation");
		810
		811	req->callback = SvREFCNT_inc (cb_cv);
		812	req->pri = req_pri;
		813
		814	return req;
		815	}
		816
627	#define dREQ \	817	#define dREQ \
628	SV *cb_cv; \	818	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		819
642	#define REQ_SEND \	820	#define REQ_SEND \
643	PUTBACK; \	821	PUTBACK; \
644	req_submit (req); \	822	req_submit (req); \
645	SPAGAIN; \	823	SPAGAIN; \
646	\	824	\
647	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	826	XPUSHs (req_sv (req, aio_req_stash));
649		827
		828	ecb_inline void
		829	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		830	{
		831	if (expect_false (SvROK (path)))
		832	{
		833	SV *rv = SvRV (path);
		834	SV *wdob;
		835
		836	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		837	{
		838	path = AvARRAY (rv)[1];
		839	wdob = AvARRAY (rv)[0];
		840
		841	if (SvOK (wdob))
		842	{
		843	*wd = SvAIO_WD (wdob);
		844	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		845	}
		846	else
		847	*wd = EIO_INVALID_WD;
		848	}
		849	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		850	{
		851	*wd = (aio_wd)(long)SvIVX (rv);
		852	*wdsv = SvREFCNT_inc_NN (rv);
		853	*ptr = ".";
		854	return; /* path set to "." */
		855	}
		856	else
		857	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		858	}
		859
		860	*pathsv = newSVsv (path);
		861	*ptr = SvPVbyte_nolen (*pathsv);
		862	}
		863
		864	static void ecb_noinline
		865	req_set_path1 (aio_req req, SV *path)
		866	{
		867	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		868	}
		869
		870	static void ecb_noinline
		871	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		872	{
		873	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		874
		875	switch (SvTYPE (rv))
		876	{
		877	case SVt_PVIO:
		878	case SVt_PVLV:
		879	case SVt_PVGV:
		880	req->type = type_fh;
		881	req->sv1 = newSVsv (fh_or_path);
		882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		883	break;
		884
		885	default:
		886	req->type = type_path;
		887	req_set_path1 (req, fh_or_path);
		888	break;
		889	}
		890	}
		891
		892	XS(boot_IO__AIO) ecb_cold;
		893
650	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
651		895
652	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
653		897
654	BOOT:	898	BOOT:
…		…
658	IV iv;	902	IV iv;
659	} *civ, const_iv[] = {	903	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	904	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	905	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	906	# define const_eio(name) { # name, (IV) EIO_ ## name },
		907
		908	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		909
		910	const_iv (ENOSYS)
663	const_iv (EXDEV)	911	const_iv (EXDEV)
664	const_iv (ENOSYS)	912	const_iv (EBADR)
		913
665	const_iv (O_RDONLY)	914	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	915	const_iv (O_WRONLY)
		916	const_iv (O_RDWR)
667	const_iv (O_CREAT)	917	const_iv (O_CREAT)
668	const_iv (O_TRUNC)	918	const_iv (O_TRUNC)
669	#ifndef _WIN32	919	const_iv (O_EXCL)
		920	const_iv (O_APPEND)
		921
		922	const_iv (O_ASYNC)
		923	const_iv (O_DIRECT)
		924	const_iv (O_NOATIME)
		925
		926	const_iv (O_CLOEXEC)
		927	const_iv (O_NOCTTY)
		928	const_iv (O_NOFOLLOW)
		929	const_iv (O_NONBLOCK)
		930	const_iv (O_EXEC)
		931	const_iv (O_SEARCH)
		932	const_iv (O_DIRECTORY)
		933	const_iv (O_DSYNC)
		934	const_iv (O_RSYNC)
		935	const_iv (O_SYNC)
		936	const_iv (O_TTY_INIT)
		937
670	const_iv (S_IFIFO)	938	const_iv (S_IFIFO)
671	#endif	939	const_iv (S_IFCHR)
		940	const_iv (S_IFBLK)
		941	const_iv (S_IFLNK)
		942	const_iv (S_IFREG)
		943	const_iv (S_IFDIR)
		944	const_iv (S_IFWHT)
		945	const_iv (S_IFSOCK)
		946	const_iv (S_IFMT)
		947
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		954
		955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678		960
679	const_iv (ST_RDONLY)	961	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	962	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	963	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	964	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	969	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	970	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	971	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	972	const_iv (ST_RELATIME)
691		973
		974	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	975	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	976	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	977	const_iv (PROT_WRITE)
696		978
697	/*const_iv (MAP_FIXED)*/	979	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	980	const_iv (MAP_PRIVATE)
…		…
704	const_iv (MAP_LOCKED)	986	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	987	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	988	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	989	const_iv (MAP_NONBLOCK)
708		990
		991	const_iv (FIEMAP_FLAG_SYNC)
		992	const_iv (FIEMAP_FLAG_XATTR)
		993	const_iv (FIEMAP_FLAGS_COMPAT)
		994	const_iv (FIEMAP_EXTENT_LAST)
		995	const_iv (FIEMAP_EXTENT_UNKNOWN)
		996	const_iv (FIEMAP_EXTENT_DELALLOC)
		997	const_iv (FIEMAP_EXTENT_ENCODED)
		998	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		999	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1000	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1001	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1002	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1003	const_iv (FIEMAP_EXTENT_MERGED)
		1004	const_iv (FIEMAP_EXTENT_SHARED)
		1005
		1006	const_iv (SPLICE_F_MOVE)
		1007	const_iv (SPLICE_F_NONBLOCK)
		1008	const_iv (SPLICE_F_MORE)
		1009	const_iv (SPLICE_F_GIFT)
		1010
		1011	const_iv (SEEK_DATA)
		1012	const_iv (SEEK_HOLE)
		1013
		1014	/* libeio constants */
		1015	const_eio (SEEK_SET)
		1016	const_eio (SEEK_CUR)
		1017	const_eio (SEEK_END)
		1018
709	const_iv (MCL_FUTURE)	1019	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	1020	const_eio (MCL_CURRENT)
711		1021
712	const_eio (MS_ASYNC)	1022	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	1023	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	1024	const_eio (MS_SYNC)
715		1025
716	const_eio (MT_MODIFY)	1026	const_eio (MT_MODIFY)
717		1027
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1028	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	1029	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1031
		1032	const_eio (FALLOC_FL_KEEP_SIZE)
		1033	const_eio (FALLOC_FL_PUNCH_HOLE)
721		1034
722	const_eio (READDIR_DENTS)	1035	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	1036	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	1037	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1038	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1049	};
737		1050
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1051	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1052	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1053	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1054	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
741		1055
742	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
743	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1058
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1060
747	create_respipe ();	1061	reinit ();
748
749	if (eio_init (want_poll, done_poll) < 0)
750	croak ("IO::AIO: unable to initialise eio library");
751
752	/* atfork child called in fifo order, so before eio's handler */
753	X_THREAD_ATFORK (0, 0, atfork_child);
754	}	1062	}
755		1063
756	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
757	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1070	PROTOTYPE: $
759	CODE:	1071	CODE:
760	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
761		1073
762	void	1074	void
…		…
764	PROTOTYPE: $	1076	PROTOTYPE: $
765	CODE:	1077	CODE:
766	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
767		1079
768	void	1080	void
769	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1082	PROTOTYPE: $
771	CODE:	1083	CODE:
772	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
773		1085
774	void	1086	void
775	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1088	PROTOTYPE: $
777	CODE:	1089	CODE:
778	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
779		1091
780	void	1092	void
781	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1094	PROTOTYPE: $
783	CODE:	1095	CODE:
784	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
785		1097
786	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
787	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1106	PROTOTYPE: $
789	CODE:	1107	CODE:
790	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
791		1109
792	void	1110	void
		1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1112	PPCODE:
		1113	{
		1114	dREQ;
		1115
		1116	req->type = EIO_WD_OPEN;
		1117	req_set_path1 (req, pathname);
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
793	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1124	PPCODE:
796	{	1125	{
797	dREQ;	1126	dREQ;
798		1127
799	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1130	req->int1 = flags;
803	req->int2 = mode;	1131	req->int2 = mode;
804		1132
805	REQ_SEND;	1133	REQ_SEND;
806	}	1134	}
807		1135
808	void	1136	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1138	ALIAS:
812	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1142	PPCODE:
815	{	1143	{
816	int fd = s_fileno_croak (fh, 0);	1144	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1145	dREQ;
818		1146
819	req->type = ix;	1147	req->type = ix;
820	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1149	req->int1 = fd;
822		1150
823	REQ_SEND (req);	1151	REQ_SEND;
824	}	1152	}
825		1153
826	void	1154	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1156	PPCODE:
830	{	1157	{
831	int fd = s_fileno_croak (fh, 0);	1158	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1159	dREQ;
833		1160
834	req->type = EIO_SYNC_FILE_RANGE;	1161	req->type = EIO_SYNC_FILE_RANGE;
835	req->sv1 = newSVsv (fh);	1162	req->sv1 = newSVsv (fh);
836	req->int1 = fd;	1163	req->int1 = fd;
837	req->offs = offset;	1164	req->offs = offset;
838	req->size = nbytes;	1165	req->size = nbytes;
839	req->int2 = flags;	1166	req->int2 = flags;
840		1167
841	REQ_SEND (req);	1168	REQ_SEND;
		1169	}
		1170
		1171	void
		1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1173	PPCODE:
		1174	{
		1175	int fd = s_fileno_croak (fh, 0);
		1176	dREQ;
		1177
		1178	req->type = EIO_FALLOCATE;
		1179	req->sv1 = newSVsv (fh);
		1180	req->int1 = fd;
		1181	req->int2 = mode;
		1182	req->offs = offset;
		1183	req->size = len;
		1184
		1185	REQ_SEND;
842	}	1186	}
843		1187
844	void	1188	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1190	PPCODE:
848	{	1191	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1193	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1194	dREQ;
852		1195
853	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
854	{	1197	{
855	int pipefd [2];	1198	int pipefd [2];
856		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
857	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1206	#endif
		1207	|| close (pipefd [1]) < 0
		1208	)
860	abort (); /*D*/	1209	abort (); /*D*/
861		1210
862	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
863	}	1212	}
864		1213
865	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1215	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1217	req->int2 = fd;
869		1218
870	REQ_SEND (req);	1219	REQ_SEND;
		1220	}
		1221
		1222	void
		1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1224	PPCODE:
		1225	{
		1226	int fd = s_fileno_croak (fh, 0);
		1227	dREQ;
		1228
		1229	req->type = EIO_SEEK;
		1230	req->sv1 = newSVsv (fh);
		1231	req->int1 = fd;
		1232	req->offs = SvVAL64 (offset);
		1233	req->int2 = whence;
		1234
		1235	REQ_SEND;
871	}	1236	}
872		1237
873	void	1238	void
874	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875	ALIAS:	1240	ALIAS:
876	aio_read = EIO_READ	1241	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1243	PPCODE:
880	{	1244	{
881	STRLEN svlen;	1245	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
…		…
897	}	1261	}
898	else	1262	else
899	{	1263	{
900	/* read: check type and grow scalar as necessary */	1264	/* read: check type and grow scalar as necessary */
901	SvUPGRADE (data, SVt_PV);	1265	SvUPGRADE (data, SVt_PV);
		1266	if (SvLEN (data) >= SvCUR (data))
902	svptr = SvGROW (data, len + dataoffset + 1);	1267	svptr = SvGROW (data, len + dataoffset + 1);
		1268	else if (SvCUR (data) < len + dataoffset)
		1269	croak ("length + dataoffset outside of scalar, and cannot grow");
903	}	1270	}
904		1271
905	{	1272	{
906	dREQ;	1273	dREQ;
907		1274
…		…
923	REQ_SEND;	1290	REQ_SEND;
924	}	1291	}
925	}	1292	}
926		1293
927	void	1294	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
929	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
930	PPCODE:	1299	PPCODE:
931	{	1300	{
932	SV *data;
933	dREQ;	1301	dREQ;
934		1302
935	req->type = EIO_READLINK;	1303	req->type = ix;
936	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1305
939	REQ_SEND;	1306	REQ_SEND;
940	}	1307	}
941		1308
942	void	1309	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1311	PPCODE:
946	{	1312	{
947	int ifd = s_fileno_croak (in_fh , 0);	1313	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1314	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1315	dREQ;
950		1316
951	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
952	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
953	req->int1 = ofd;	1319	req->int1 = ofd;
…		…
959	REQ_SEND;	1325	REQ_SEND;
960	}	1326	}
961		1327
962	void	1328	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1330	PPCODE:
966	{	1331	{
967	int fd = s_fileno_croak (fh, 0);	1332	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1333	dREQ;
969		1334
970	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
971	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
972	req->int1 = fd;	1337	req->int1 = fd;
…		…
984	aio_statvfs = EIO_STATVFS	1349	aio_statvfs = EIO_STATVFS
985	PPCODE:	1350	PPCODE:
986	{	1351	{
987	dREQ;	1352	dREQ;
988		1353
989	req->sv1 = newSVsv (fh_or_path);	1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
990
991	if (SvPOK (req->sv1))
992	{
993	req->type = ix;
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995	}
996	else
997	{
998	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
999	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1000	}
1001		1355
1002	REQ_SEND;	1356	REQ_SEND;
1003	}	1357	}
		1358
		1359	UV
		1360	major (UV dev)
		1361	ALIAS:
		1362	minor = 1
		1363	CODE:
		1364	RETVAL = ix ? major (dev) : minor (dev);
		1365	OUTPUT:
		1366	RETVAL
		1367
		1368	UV
		1369	makedev (UV maj, UV min)
		1370	CODE:
		1371	RETVAL = makedev (maj, min);
		1372	OUTPUT:
		1373	RETVAL
1004		1374
1005	void	1375	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1007	PPCODE:	1377	PPCODE:
1008	{	1378	{
1009	dREQ;	1379	dREQ;
1010		1380
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1383	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1014
1015	if (SvPOK (req->sv1))
1016	{
1017	req->type = EIO_UTIME;
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
1019	}
1020	else
1021	{
1022	req->type = EIO_FUTIME;
1023	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1024	}
1025		1384
1026	REQ_SEND;	1385	REQ_SEND;
1027	}	1386	}
1028		1387
1029	void	1388	void
1030	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1031	PPCODE:	1390	PPCODE:
1032	{	1391	{
1033	dREQ;	1392	dREQ;
1034		1393
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1395	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_TRUNCATE;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FTRUNCATE;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1396
1049	REQ_SEND;	1397	REQ_SEND;
1050	}	1398	}
1051		1399
1052	void	1400	void
1053	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1401	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1054	ALIAS:
1055	aio_chmod = EIO_CHMOD
1056	aio_mkdir = EIO_MKDIR
1057	PPCODE:	1402	PPCODE:
1058	{	1403	{
1059	dREQ;	1404	dREQ;
1060		1405
1061	req->int2 = mode;	1406	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1407	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1063
1064	if (SvPOK (req->sv1))
1065	{
1066	req->type = ix;
1067	req->ptr1 = SvPVbyte_nolen (req->sv1);
1068	}
1069	else
1070	{
1071	req->type = EIO_FCHMOD;
1072	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1073	}
1074		1408
1075	REQ_SEND;	1409	REQ_SEND;
1076	}	1410	}
1077		1411
1078	void	1412	void
…		…
1081	{	1415	{
1082	dREQ;	1416	dREQ;
1083		1417
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1420	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1087
1088	if (SvPOK (req->sv1))
1089	{
1090	req->type = EIO_CHOWN;
1091	req->ptr1 = SvPVbyte_nolen (req->sv1);
1092	}
1093	else
1094	{
1095	req->type = EIO_FCHOWN;
1096	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1097	}
1098		1421
1099	REQ_SEND;	1422	REQ_SEND;
1100	}	1423	}
1101		1424
1102	void	1425	void
…		…
1104	PPCODE:	1427	PPCODE:
1105	{	1428	{
1106	dREQ;	1429	dREQ;
1107		1430
1108	req->type = EIO_READDIR;	1431	req->type = EIO_READDIR;
1109	req->sv1 = newSVsv (pathname);
1110	req->ptr1 = SvPVbyte_nolen (req->sv1);
1111	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1432	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1433
1113	if (flags & EIO_READDIR_DENTS)	1434	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1435	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1436
		1437	req_set_path1 (req, pathname);
		1438
1116	REQ_SEND;	1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
		1448	req->type = EIO_MKDIR;
		1449	req->int2 = mode;
		1450	req_set_path1 (req, pathname);
		1451
		1452	REQ_SEND;
1117	}	1453	}
1118		1454
1119	void	1455	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1456	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1121	ALIAS:	1457	ALIAS:
…		…
1125	PPCODE:	1461	PPCODE:
1126	{	1462	{
1127	dREQ;	1463	dREQ;
1128		1464
1129	req->type = ix;	1465	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1467
1133	REQ_SEND;	1468	REQ_SEND;
1134	}	1469	}
1135		1470
1136	void	1471	void
…		…
1139	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
1142	PPCODE:	1477	PPCODE:
1143	{	1478	{
		1479	eio_wd wd2 = 0;
1144	dREQ;	1480	dREQ;
1145		1481
1146	req->type = ix;	1482	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1486
1152	REQ_SEND;	1487	REQ_SEND;
1153	}	1488	}
1154		1489
1155	void	1490	void
…		…
1157	PPCODE:	1492	PPCODE:
1158	{	1493	{
1159	dREQ;	1494	dREQ;
1160		1495
1161	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
1166		1500
1167	REQ_SEND;	1501	REQ_SEND;
1168	}	1502	}
1169		1503
1170	void	1504	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172	ALIAS:	1506	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1507	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1508	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1509	PPCODE:
1177	{	1510	{
1178	STRLEN svlen;	1511	STRLEN svlen;
		1512	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1513	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);
1181		1514
1182	if (offset < 0)	1515	if (offset < 0)
1183	offset += svlen;	1516	offset += svlen;
1184		1517
1185	if (offset < 0 || offset > svlen)	1518	if (offset < 0 || offset > svlen)
…		…
1190		1523
1191	{	1524	{
1192	dREQ;	1525	dREQ;
1193		1526
1194	req->type = ix;	1527	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1528	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1529	req->ptr2 = (char *)svptr + offset;
		1530	req->size = len;
1198	req->int1 = flags;	1531	req->int1 = flags;
1199		1532
1200	REQ_SEND;	1533	REQ_SEND;
1201	}	1534	}
1202	}	1535	}
1203		1536
1204	void	1537	void
		1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1539	PPCODE:
		1540	{
		1541	STRLEN svlen;
		1542	char *svptr = SvPVbyte (data, svlen);
		1543	UV len = SvUV (length);
		1544
		1545	if (offset < 0)
		1546	offset += svlen;
		1547
		1548	if (offset < 0 || offset > svlen)
		1549	croak ("offset outside of scalar");
		1550
		1551	if (!SvOK (length) || len + offset > svlen)
		1552	len = svlen - offset;
		1553
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MLOCK;
		1558	req->sv2 = SvREFCNT_inc (data);
		1559	req->ptr2 = (char *)svptr + offset;
		1560	req->size = len;
		1561
		1562	REQ_SEND;
		1563	}
		1564	}
		1565
		1566	void
		1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1568	PPCODE:
		1569	{
		1570	dREQ;
		1571
		1572	req->type = EIO_MLOCKALL;
		1573	req->int1 = flags;
		1574
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1580	PPCODE:
		1581	{
		1582	int fd = s_fileno_croak (fh, 0);
		1583	dREQ;
		1584
		1585	req->type = EIO_CUSTOM;
		1586	req->sv1 = newSVsv (fh);
		1587	req->int1 = fd;
		1588
		1589	req->feed = fiemap;
		1590	#if HAVE_FIEMAP
		1591	/* keep our fingers crossed that the next two types are 64 bit */
		1592	req->offs = start;
		1593	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1594	req->int2 = flags;
		1595	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1596	#endif
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
1206	PPCODE:	1603	PPCODE:
1207	{	1604	{
1208	dREQ;	1605	dREQ;
1209		1606
…		…
1213	REQ_SEND;	1610	REQ_SEND;
1214	}	1611	}
1215		1612
1216	void	1613	void
1217	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1615	PPCODE:
1220	{	1616	{
1221	dREQ;	1617	dREQ;
1222		1618
1223	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
…		…
1240	REQ_SEND;	1636	REQ_SEND;
1241	}	1637	}
1242		1638
1243	int	1639	int
1244	aioreq_pri (int pri = 0)	1640	aioreq_pri (int pri = 0)
1245	PROTOTYPE: ;$
1246	CODE:	1641	CODE:
1247	RETVAL = next_pri;	1642	RETVAL = next_pri;
1248	if (items > 0)	1643	if (items > 0)
1249	{	1644	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1645	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1657	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1658	next_pri = nice;
1264		1659
1265	void	1660	void
1266	flush ()	1661	flush ()
1267	PROTOTYPE:
1268	CODE:	1662	CODE:
1269	while (eio_nreqs ())	1663	while (eio_nreqs ())
1270	{	1664	{
1271	poll_wait ();	1665	poll_wait ();
1272	poll_cb ();	1666	poll_cb ();
1273	}	1667	}
1274		1668
1275	int	1669	int
1276	poll()	1670	poll ()
1277	PROTOTYPE:
1278	CODE:	1671	CODE:
1279	poll_wait ();	1672	poll_wait ();
1280	RETVAL = poll_cb ();	1673	RETVAL = poll_cb ();
1281	OUTPUT:	1674	OUTPUT:
1282	RETVAL	1675	RETVAL
1283		1676
1284	int	1677	int
1285	poll_fileno()	1678	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1679	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1680	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1681	OUTPUT:
1290	RETVAL	1682	RETVAL
1291		1683
1292	int	1684	int
1293	poll_cb(...)	1685	poll_cb (...)
1294	PROTOTYPE:	1686	PROTOTYPE:
1295	CODE:	1687	CODE:
1296	RETVAL = poll_cb ();	1688	RETVAL = poll_cb ();
1297	OUTPUT:	1689	OUTPUT:
1298	RETVAL	1690	RETVAL
1299		1691
1300	void	1692	void
1301	poll_wait()	1693	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1694	CODE:
1304	poll_wait ();	1695	poll_wait ();
1305		1696
1306	int	1697	int
1307	nreqs()	1698	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1699	CODE:
1310	RETVAL = eio_nreqs ();	1700	RETVAL = eio_nreqs ();
1311	OUTPUT:	1701	OUTPUT:
1312	RETVAL	1702	RETVAL
1313		1703
1314	int	1704	int
1315	nready()	1705	nready ()
1316	PROTOTYPE:
1317	CODE:	1706	CODE:
1318	RETVAL = eio_nready ();	1707	RETVAL = eio_nready ();
1319	OUTPUT:	1708	OUTPUT:
1320	RETVAL	1709	RETVAL
1321		1710
1322	int	1711	int
1323	npending()	1712	npending ()
1324	PROTOTYPE:
1325	CODE:	1713	CODE:
1326	RETVAL = eio_npending ();	1714	RETVAL = eio_npending ();
1327	OUTPUT:	1715	OUTPUT:
1328	RETVAL	1716	RETVAL
1329		1717
1330	int	1718	int
1331	nthreads()	1719	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1720	CODE:
1334	RETVAL = eio_nthreads ();	1721	RETVAL = eio_nthreads ();
1335	OUTPUT:	1722	OUTPUT:
1336	RETVAL	1723	RETVAL
1337		1724
1338	int	1725	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1726	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	1727	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1728	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1729	OUTPUT:
1348	RETVAL	1730	RETVAL
1349		1731
1350	ssize_t	1732	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1733	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1734	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1735	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1736	OUTPUT:
1356	RETVAL	1737	RETVAL
1357		1738
1358	void	1739	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1740	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1741	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1742	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1743	{
1364	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1744	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1745	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1746	if (addr == (void *)-1)
1367	XSRETURN_NO;	1747	XSRETURN_NO;
1368		1748
		1749	sv_force_normal (scalar);
		1750
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1751	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1752	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1753	->mg_obj = (SV *)length;
1372		1754
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1755	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1756
1374	if (!(prot & PROT_WRITE))	1757	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1758	SvREADONLY_on (scalar);
		1759
		1760	if (SvLEN (scalar))
		1761	Safefree (SvPVX (scalar));
1376		1762
1377	SvPVX (scalar) = (char *)addr;	1763	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1764	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1765	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1766	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1768	XSRETURN_YES;
1383	}	1769	}
1384		1770
1385	void	1771	void
1386	munmap (SV *scalar)	1772	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1773	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1774	sv_unmagic (scalar, MMAP_MAGIC);
1390		1775
1391	int	1776	int
1392	mlockall (int flags)	1777	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1778	ALIAS:
		1779	mprotect = 1
1394	CODE:	1780	CODE:
		1781	{
		1782	STRLEN svlen;
		1783	void *addr = SvPVbyte (scalar, svlen);
		1784	size_t len = SvUV (length);
		1785
		1786	if (offset < 0)
		1787	offset += svlen;
		1788
		1789	if (offset < 0 || offset > svlen)
		1790	croak ("offset outside of scalar");
		1791
		1792	if (!SvOK (length) || len + offset > svlen)
		1793	len = svlen - offset;
		1794
		1795	addr = (void *)(((intptr_t)addr) + offset);
		1796	eio_page_align (&addr, &len);
		1797
		1798	switch (ix)
		1799	{
		1800	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1801	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1802	}
		1803	}
		1804	OUTPUT:
		1805	RETVAL
		1806
		1807	int
		1808	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1809	CODE:
		1810	{
		1811	STRLEN svlen;
		1812	void *addr = SvPVbyte (scalar, svlen);
		1813	size_t len = SvUV (length);
		1814
		1815	if (offset < 0)
		1816	offset += svlen;
		1817
		1818	if (offset < 0 || offset > svlen)
		1819	croak ("offset outside of scalar");
		1820
		1821	if (!SvOK (length) || len + offset > svlen)
		1822	len = svlen - offset;
		1823
		1824	addr = (void *)(((intptr_t)addr) + offset);
		1825	eio_page_align (&addr, &len);
1395	#if _POSIX_MEMLOCK	1826	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1827	RETVAL = munlock (addr, len);
1397	extern int mallopt (int, int);
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399	#endif
1400	mlockall (flags);
1401	#else	1828	#else
1402	RETVAL = -1;	1829	RETVAL = EIO_ENOSYS ();
1403	errno = ENOSYS;
1404	#endif	1830	#endif
		1831	}
1405	OUTPUT:	1832	OUTPUT:
1406	RETVAL	1833	RETVAL
1407		1834
1408	int	1835	int
1409	munlockall ()	1836	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1837	CODE:
1412	#if _POSIX_MEMLOCK	1838	#if _POSIX_MEMLOCK
1413	munlockall ();	1839	munlockall ();
1414	#else	1840	#else
		1841	RETVAL = EIO_ENOSYS ();
		1842	#endif
		1843	OUTPUT:
		1844	RETVAL
		1845
		1846	int
		1847	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1848	CODE:
		1849	{
		1850	#if HAVE_LINUX_SPLICE
		1851	loff_t off_in_, off_out_;
		1852	RETVAL = splice (
		1853	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1854	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1855	length, flags
		1856	);
		1857	#else
		1858	RETVAL = EIO_ENOSYS ();
		1859	#endif
		1860	}
		1861	OUTPUT:
		1862	RETVAL
		1863
		1864	int
		1865	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1866	CODE:
		1867	#if HAVE_LINUX_SPLICE
		1868	RETVAL = tee (rfh, wfh, length, flags);
		1869	#else
		1870	RETVAL = EIO_ENOSYS ();
		1871	#endif
		1872	OUTPUT:
		1873	RETVAL
		1874
		1875	int
		1876	pipesize (aio_rfd rfh, int new_size = -1)
		1877	PROTOTYPE: $;$
		1878	CODE:
		1879	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1880	if (new_size >= 0)
		1881	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1882	else
		1883	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1884	#else
		1885	errno = ENOSYS;
1415	RETVAL = -1;	1886	RETVAL = -1;
1416	errno = ENOSYS;
1417	#endif	1887	#endif
1418	OUTPUT:	1888	OUTPUT:
1419	RETVAL	1889	RETVAL
1420		1890
1421	void _on_next_submit (SV *cb)	1891	void _on_next_submit (SV *cb)
…		…
1423	SvREFCNT_dec (on_next_submit);	1893	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1894	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		1895
1426	PROTOTYPES: DISABLE	1896	PROTOTYPES: DISABLE
1427		1897
		1898	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1899
		1900	BOOT:
		1901	{
		1902	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1903	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1904	}
		1905
		1906	void
		1907	DESTROY (SV *self)
		1908	CODE:
		1909	{
		1910	aio_wd wd = SvAIO_WD (self);
		1911	#if HAVE_AT
		1912	{
		1913	SV *callback = &PL_sv_undef;
		1914	dREQ; /* clobbers next_pri :/ */
		1915	next_pri = req->pri; /* restore next_pri */
		1916	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1917	req->type = EIO_WD_CLOSE;
		1918	req->wd = wd;
		1919	REQ_SEND;
		1920	}
		1921	#else
		1922	eio_wd_close_sync (wd);
		1923	#endif
		1924	}
		1925
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1926	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		1927
1430	void	1928	void
1431	cancel (aio_req_ornot req)	1929	cancel (aio_req_ornot req)
1432	CODE:	1930	CODE:

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