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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.162 by root, Sun Jan 10 23:05:12 2010 UTC vs.
Revision 1.225 by root, Sat Dec 29 09:35:39 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>
23	#endif	22	#endif
24		23
25	#if !_POSIX_MAPPED_FILES	24	#if __linux__
26	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	25	# include <linux/fs.h>
27	# define munmap(addr,length) (errno = ENOSYS, -1)	26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
28	#endif	31	#endif
29		32
30	/* perl namespace pollution */	33	/* perl namespace pollution */
31	#undef VERSION	34	#undef VERSION
32
33	#ifdef _WIN32
34
35	# define EIO_STRUCT_DIRENT Direntry_t
36	# undef malloc
37	# undef free
38
39	// perl overrides all those nice win32 functions
40	# undef open
41	# undef read
42	# undef write
43	# undef send
44	# undef recv
45	# undef stat
46	# undef fstat
47	# define lstat stat
48	# undef truncate
49	# undef ftruncate
50	# undef open
51	# undef close
52	# undef unlink
53	# undef rmdir
54	# undef rename
55	# undef lseek
56
57	# define chown(a,b,c) (errno = ENOSYS, -1)
58	# define fchown(a,b,c) (errno = ENOSYS, -1)
59	# define fchmod(a,b) (errno = ENOSYS, -1)
60	# define symlink(a,b) (errno = ENOSYS, -1)
61	# define readlink(a,b,c) (errno = ENOSYS, -1)
62	# define mknod(a,b,c) (errno = ENOSYS, -1)
63	# define truncate(a,b) (errno = ENOSYS, -1)
64	# define ftruncate(fd,o) chsize ((fd), (o))
65	# define fsync(fd) _commit (fd)
66	# define opendir(fd) (errno = ENOSYS, 0)
67	# define readdir(fd) (errno = ENOSYS, -1)
68	# define closedir(fd) (errno = ENOSYS, -1)
69	# define mkdir(a,b) mkdir (a)
70
71	#else
72
73	# include <sys/time.h>
74	# include <sys/select.h>
75	# include <unistd.h>
76	# include <utime.h>
77	# include <signal.h>
78	# define EIO_STRUCT_DIRENT struct dirent
79
80	#endif
81		35
82	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
83	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
84	#undef readdir	38	#undef readdir
85	#undef opendir	39	#undef opendir
86	#undef closedir	40	#undef closedir
87		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
88	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
89		78
90	/* use NV for 32 bit perls as it allows larger offsets */
91	#if IVSIZE >= 8
92	# define VAL64 IV
93	# define SvVAL64 SvIV
94	# define newSVval64 newSViv
95	#else	79	#else
96	# define VAL64 NV	80
97	# define SvVAL64 SvNV	81	#include <sys/time.h>
98	# 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
99	#endif	89	#endif
100		90
101	/*****************************************************************************/	91	/*****************************************************************************/
102		92
103	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
113		103
114	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
115	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
116	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
117		107
118	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
119		109
120	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
121	SV *callback; \	111	SV *callback; \
122	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
123	STRLEN stroffset; \	114	STRLEN stroffset; \
124	SV *self;	115	SV *self;
125		116
126	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
127		118
		119	#include "libeio/config.h"
128	#include "libeio/eio.h"	120	#include "libeio/eio.h"
129		121
130	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
131	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
132	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
133	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
134	#ifndef POSIX_FADV_SEQUENTIAL
135	# define POSIX_FADV_SEQUENTIAL 0
136	#endif
137	#ifndef POSIX_FADV_RANDOM
138	# define POSIX_FADV_RANDOM 0
139	#endif
140	#ifndef POSIX_FADV_NOREUSE
141	# define POSIX_FADV_NOREUSE 0
142	#endif
143	#ifndef POSIX_FADV_WILLNEED
144	# define POSIX_FADV_WILLNEED 0
145	#endif
146	#ifndef POSIX_FADV_DONTNEED
147	# define POSIX_FADV_DONTNEED 0
148	#endif
149		126
150	#ifndef ST_NODEV	127	#include "libeio/eio.c"
151	# define ST_NODEV 0
152	#endif
153	#ifndef ST_NOEXEC
154	# define ST_NOEXEC 0
155	#endif
156	#ifndef ST_SYNCHRONOUS
157	# define ST_SYNCHRONOUS 0
158	#endif
159	#ifndef ST_MANDLOCK
160	# define ST_MANDLOCK 0
161	#endif
162	#ifndef ST_WRITE
163	# define ST_WRITE 0
164	#endif
165	#ifndef ST_APPEND
166	# define ST_APPEND 0
167	#endif
168	#ifndef ST_IMMUTABLE
169	# define ST_IMMUTABLE 0
170	#endif
171	#ifndef ST_NOATIME
172	# define ST_NOATIME 0
173	#endif
174	#ifndef ST_NODIRATIME
175	# define ST_NODIRATIME 0
176	#endif
177	#ifndef ST_RELATIME
178	# define ST_RELATIME 0
179	#endif
180		128
181	#ifndef MCL_CURRENT	129	#if !HAVE_POSIX_FADVISE
182	# define MCL_CURRENT 0	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
183	#endif	131	#endif
184	#ifndef MCL_FUTURE	132
185	# define MCL_FUTURE 0	133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
186	#endif	135	#endif
187		136
188	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
189	# ifdef MAP_ANON	138	# ifdef MAP_ANON
190	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
191	# else	140	# else
192	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
193	# endif	142	# endif
194	#endif	143	#endif
195	#ifndef MAP_HUGETLB
196	# define MAP_HUGETLB 0
197	#endif
198	#ifndef MAP_LOCKED
199	# define MAP_LOCKED 0
200	#endif
201	#ifndef MAP_NORESERVE
202	# define MAP_NORESERVE 0
203	#endif
204	#ifndef MAP_POPULATE
205	# define MAP_POPULATE 0
206	#endif
207	#ifndef MAP_NONBLOCK
208	# define MAP_NONBLOCK 0
209	#endif
210		144
211	#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
212	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
213	#endif	160	#endif
214		161
215	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
216	#define EIO_FINISH(req) req_invoke (req)	163
217	static void req_destroy (eio_req *grp);	164	static void
218	#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 (atcually 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	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
219		258
220	enum {	259	enum {
221	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
222	};	261	};
223		262
224	#include "libeio/eio.c"
225
226	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
227	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
228		266
229	static SV *on_next_submit;	267	static SV *on_next_submit;
230	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
231	static int max_outstanding;	269	static int max_outstanding;
232		270
233	static s_epipe respipe;	271	static s_epipe respipe;
234		272
235	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
236	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
237		275
238	static void want_poll (void)	276	static void
		277	want_poll (void)
239	{	278	{
240	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
241	s_epipe_signal (&respipe);	280	s_epipe_signal (&respipe);
242	}	281	}
243		282
244	static void done_poll (void)	283	static void
		284	done_poll (void)
245	{	285	{
246	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
247	s_epipe_drain (&respipe);	287	s_epipe_drain (&respipe);
248	}	288	}
249		289
250	/* must be called at most once */	290	/* must be called at most once */
		291	static SV *
251	static SV *req_sv (aio_req req, HV *stash)	292	req_sv (aio_req req, HV *stash)
252	{	293	{
253	if (!req->self)	294	if (!req->self)
254	{	295	{
255	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
256	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
257	}	298	}
258		299
259	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
260	}	301	}
261		302
262	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
263	{	311	{
264	MAGIC *mg;	312	MAGIC *mg;
265		313
266	if (!SvROK (sv)	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
267	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
268	&& SvSTASH (SvRV (sv)) != aio_req_stash	317	&& SvSTASH (SvRV (sv)) != aio_req_stash
269	&& !sv_derived_from (sv, "IO::AIO::REQ")))	318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
270	croak ("object of class IO::AIO::REQ expected");	319	croak ("object of class IO::AIO::REQ expected");
271		320
272	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273		322
274	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
275	}	324	}
276		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
277	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
278	{	339	{
279	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
280	{	341	{
281	dSP;	342	dSP;
282		343
…		…
290	FREETMPS;	351	FREETMPS;
291	LEAVE;	352	LEAVE;
292	}	353	}
293	}	354	}
294		355
		356	static void
295	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
296	{	358	{
297	eio_submit (req);	359	eio_submit (req);
298		360
299	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
300	{	362	{
…		…
307	PUTBACK;	369	PUTBACK;
308	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
309	}	371	}
310	}	372	}
311		373
		374	static int
312	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
313	{	376	{
314	dSP;
315
316	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
317	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
318		379
319	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
320	{	381	{
		382	dSP;
		383	static SV *sv_result_cache; /* caches the result integer SV */
		384	SV *sv_result;
		385
321	ENTER;	386	ENTER;
322	SAVETMPS;	387	SAVETMPS;
323	PUSHMARK (SP);	388	PUSHMARK (SP);
324	EXTEND (SP, 1);	389	EXTEND (SP, 1);
325		390
		391	/* do not recreate the result IV from scratch each time */
		392	if (expect_true (sv_result_cache))
		393	{
		394	sv_result = sv_result_cache; sv_result_cache = 0;
		395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
		397	}
		398	else
		399	{
		400	sv_result = newSViv (req->result);
		401	SvREADONLY_on (sv_result);
		402	}
		403
326	switch (req->type)	404	switch (req->type)
327	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
328	case EIO_READDIR:	410	case EIO_READDIR:
329	{	411	{
330	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
331		413
332	if (req->result >= 0)	414	if (req->result >= 0)
…		…
420	case EIO_STATVFS:	502	case EIO_STATVFS:
421	case EIO_FSTATVFS:	503	case EIO_FSTATVFS:
422	{	504	{
423	SV *rv = &PL_sv_undef;	505	SV *rv = &PL_sv_undef;
424		506
		507	#ifndef _WIN32
425	if (req->result >= 0)	508	if (req->result >= 0)
426	{	509	{
427	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
428	HV *hv = newHV ();	511	HV *hv = newHV ();
		512	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		513	* chooses to make it a struct.
		514	*/
		515	unsigned long fsid = 0;
		516	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
429		517
430	rv = sv_2mortal (newRV_noinc ((SV *)hv));	518	rv = sv_2mortal (newRV_noinc ((SV *)hv));
431		519
432	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	520	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
433	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	521	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
435	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	523	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
436	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	524	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
437	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	525	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
438	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	526	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
439	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	527	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
440	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	528	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
441	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	529	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
442	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	530	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
443	}	531	}
		532	#endif
444		533
445	PUSHs (rv);	534	PUSHs (rv);
446	}	535	}
447		536
448	break;	537	break;
…		…
464	case EIO_NOP:	553	case EIO_NOP:
465	case EIO_BUSY:	554	case EIO_BUSY:
466	break;	555	break;
467		556
468	case EIO_READLINK:	557	case EIO_READLINK:
		558	case EIO_REALPATH:
469	if (req->result > 0)	559	if (req->result > 0)
470	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	560	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
471	break;	561	break;
472		562
473	case EIO_STAT:	563	case EIO_STAT:
474	case EIO_LSTAT:	564	case EIO_LSTAT:
475	case EIO_FSTAT:	565	case EIO_FSTAT:
476	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	566	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		567
477	PL_laststatval = req->result;	568	if (!(PL_laststatval = req->result))
		569	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
478	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	570	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
479	PUSHs (sv_2mortal (newSViv (req->result)));	571
		572	PUSHs (sv_result);
		573	break;
		574
		575	case EIO_SEEK:
		576	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
480	break;	577	break;
481		578
482	case EIO_READ:	579	case EIO_READ:
483	{	580	{
484	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	581	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
485	*SvEND (req->sv2) = 0;	582	*SvEND (req->sv2) = 0;
486	SvPOK_only (req->sv2);	583	SvPOK_only (req->sv2);
487	SvSETMAGIC (req->sv2);	584	SvSETMAGIC (req->sv2);
488	PUSHs (sv_2mortal (newSViv (req->result)));	585	PUSHs (sv_result);
489	}	586	}
490	break;	587	break;
491		588
492	case EIO_DUP2:	589	case EIO_CUSTOM:
		590	if (req->feed == fiemap)
		591	{
		592	#if HAVE_FIEMAP
		593	if (!req->result)
		594	{
		595	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		596
		597	if (fiemap->fm_extent_count)
		598	{
		599	AV *av = newAV ();
		600	int i;
		601
		602	while (fiemap->fm_mapped_extents)
		603	{
		604	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		605	AV *ext_av = newAV ();
		606
		607	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		608	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		609	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		610	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		611
		612	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		613	}
		614
		615	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		616	}
		617	else
		618	{
		619	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		620	PUSHs (sv_result);
		621	}
		622	}
		623	#endif
		624	}
		625	else
		626	PUSHs (sv_result);
		627	break;
		628
		629	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
493	if (req->result > 0)	630	if (req->result > 0)
494	req->result = 0;	631	SvIV_set (sv_result, 0);
495	/* FALLTHROUGH */	632	/* FALLTHROUGH */
496		633
497	default:	634	default:
498	PUSHs (sv_2mortal (newSViv (req->result)));	635	PUSHs (sv_result);
499	break;	636	break;
500	}	637	}
501		638
502	errno = req->errorno;	639	errno = req->errorno;
503		640
504	PUTBACK;	641	PUTBACK;
505	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	642	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
506	SPAGAIN;	643	SPAGAIN;
507		644
		645	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		646	SvREFCNT_dec (sv_result);
		647	else
		648	sv_result_cache = sv_result;
		649
508	FREETMPS;	650	FREETMPS;
509	LEAVE;	651	LEAVE;
510		652
511	PUTBACK;	653	PUTBACK;
512	}	654	}
513		655
514	return !!SvTRUE (ERRSV);	656	return !!SvTRUE (ERRSV);
515	}	657	}
516		658
		659	static void
517	static void req_destroy (aio_req req)	660	req_destroy (aio_req req)
518	{	661	{
519	if (req->self)	662	if (req->self)
520	{	663	{
521	sv_unmagic (req->self, PERL_MAGIC_ext);	664	sv_unmagic (req->self, PERL_MAGIC_ext);
522	SvREFCNT_dec (req->self);	665	SvREFCNT_dec (req->self);
523	}	666	}
524		667
525	SvREFCNT_dec (req->sv1);	668	SvREFCNT_dec (req->sv1);
526	SvREFCNT_dec (req->sv2);	669	SvREFCNT_dec (req->sv2);
		670	SvREFCNT_dec (req->sv3);
		671	SvREFCNT_dec (req->sv4);
527	SvREFCNT_dec (req->callback);	672	SvREFCNT_dec (req->callback);
528		673
529	Safefree (req);	674	free (req);
530	}	675	}
531		676
		677	static void
532	static void req_cancel_subs (aio_req grp)	678	req_cancel_subs (aio_req grp)
533	{	679	{
534	aio_req sub;
535
536	if (grp->type != EIO_GROUP)	680	if (grp->type != EIO_GROUP)
537	return;	681	return;
538		682
539	SvREFCNT_dec (grp->sv2);	683	SvREFCNT_dec (grp->sv2);
540	grp->sv2 = 0;	684	grp->sv2 = 0;
541		685
542	eio_grp_cancel (grp);	686	eio_grp_cancel (grp);
543	}	687	}
544		688
545	static void	689	static void ecb_cold
546	create_respipe (void)	690	create_respipe (void)
547	{	691	{
548	if (s_epipe_renew (&respipe))	692	if (s_epipe_renew (&respipe))
549	croak ("IO::AIO: unable to initialize result pipe");	693	croak ("IO::AIO: unable to initialize result pipe");
550	}	694	}
551		695
552	static void poll_wait (void)	696	static void
		697	poll_wait (void)
553	{	698	{
554	while (eio_nreqs ())	699	while (eio_nreqs ())
555	{	700	{
556	int size;	701	int size;
557		702
…		…
566		711
567	s_epipe_wait (&respipe);	712	s_epipe_wait (&respipe);
568	}	713	}
569	}	714	}
570		715
571	static int poll_cb (void)	716	static int
		717	poll_cb (void)
572	{	718	{
573	for (;;)	719	for (;;)
574	{	720	{
575	int res = eio_poll ();	721	int res = eio_poll ();
576		722
…		…
582		728
583	poll_wait ();	729	poll_wait ();
584	}	730	}
585	}	731	}
586		732
587	static void atfork_child (void)	733	static void ecb_cold
		734	reinit (void)
588	{	735	{
589	create_respipe ();	736	create_respipe ();
		737
		738	if (eio_init (want_poll, done_poll) < 0)
		739	croak ("IO::AIO: unable to initialise eio library");
590	}	740	}
591		741
592	/*****************************************************************************/	742	/*****************************************************************************/
593		743
		744	#if !_POSIX_MAPPED_FILES
		745	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		746	# define munmap(addr,length) EIO_ENOSYS ()
		747	#endif
		748
		749	#if !_POSIX_MEMORY_PROTECTION
		750	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		751	# define PROT_NONE 0
		752	# define PROT_WRITE 0
		753	# define MAP_PRIVATE 0
		754	# define MAP_SHARED 0
		755	# define MAP_FIXED 0
		756	#endif
		757
594	#define MMAP_MAGIC PERL_MAGIC_ext	758	#define MMAP_MAGIC PERL_MAGIC_ext
595		759
596	static int	760	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	761	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	762	{
599	int old_errno = errno;	763	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	764	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	765	errno = old_errno;
602		766
603	mg->mg_obj = 0; /* just in case */	767	mg->mg_obj = 0; /* just in case */
604		768
605	SvREADONLY_off (sv);	769	SvREADONLY_off (sv);
		770
		771	if (SvPVX (sv) != mg->mg_ptr)
		772	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		773
606	SvCUR_set (sv, 0);	774	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	775	SvPVX (sv) = 0;
609	SvOK_off (sv);	776	SvOK_off (sv);
610		777
611	return 0;	778	return 0;
612	}	779	}
…		…
622	{	789	{
623	SvGETMAGIC (cb_sv);	790	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	791	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	792	}
626		793
		794	static aio_req ecb_noinline
		795	dreq (SV *callback)
		796	{
		797	SV *cb_cv;
		798	aio_req req;
		799	int req_pri = next_pri;
		800	next_pri = EIO_PRI_DEFAULT;
		801
		802	cb_cv = get_cb (callback);
		803
		804	req = calloc (sizeof (*req), 1);
		805	if (!req)
		806	croak ("out of memory during eio_req allocation");
		807
		808	req->callback = SvREFCNT_inc (cb_cv);
		809	req->pri = req_pri;
		810
		811	return req;
		812	}
		813
627	#define dREQ \	814	#define dREQ \
628	SV *cb_cv; \	815	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		816
642	#define REQ_SEND \	817	#define REQ_SEND \
643	PUTBACK; \	818	PUTBACK; \
644	req_submit (req); \	819	req_submit (req); \
645	SPAGAIN; \	820	SPAGAIN; \
646	\	821	\
647	if (GIMME_V != G_VOID) \	822	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	823	XPUSHs (req_sv (req, aio_req_stash));
649		824
		825	ecb_inline void
		826	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		827	{
		828	if (expect_false (SvROK (path)))
		829	{
		830	SV *rv = SvRV (path);
		831	SV *wdob;
		832
		833	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		834	{
		835	path = AvARRAY (rv)[1];
		836	wdob = AvARRAY (rv)[0];
		837
		838	if (SvOK (wdob))
		839	{
		840	*wd = SvAIO_WD (wdob);
		841	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		842	}
		843	else
		844	*wd = EIO_INVALID_WD;
		845	}
		846	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		847	{
		848	*wd = (aio_wd)(long)SvIVX (rv);
		849	*wdsv = SvREFCNT_inc_NN (rv);
		850	*ptr = ".";
		851	return; /* path set to "." */
		852	}
		853	else
		854	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		855	}
		856
		857	*pathsv = newSVsv (path);
		858	*ptr = SvPVbyte_nolen (*pathsv);
		859	}
		860
		861	static void ecb_noinline
		862	req_set_path1 (aio_req req, SV *path)
		863	{
		864	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		865	}
		866
		867	static void ecb_noinline
		868	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		869	{
		870	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		871
		872	switch (SvTYPE (rv))
		873	{
		874	case SVt_PVIO:
		875	case SVt_PVLV:
		876	case SVt_PVGV:
		877	req->type = type_fh;
		878	req->sv1 = newSVsv (fh_or_path);
		879	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		880	break;
		881
		882	default:
		883	req->type = type_path;
		884	req_set_path1 (req, fh_or_path);
		885	break;
		886	}
		887	}
		888
		889	XS(boot_IO__AIO) ecb_cold;
		890
650	MODULE = IO::AIO PACKAGE = IO::AIO	891	MODULE = IO::AIO PACKAGE = IO::AIO
651		892
652	PROTOTYPES: ENABLE	893	PROTOTYPES: ENABLE
653		894
654	BOOT:	895	BOOT:
…		…
658	IV iv;	899	IV iv;
659	} *civ, const_iv[] = {	900	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	901	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	902	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	903	# define const_eio(name) { # name, (IV) EIO_ ## name },
		904
		905	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		906
		907	const_iv (ENOSYS)
663	const_iv (EXDEV)	908	const_iv (EXDEV)
664	const_iv (ENOSYS)	909	const_iv (EBADR)
		910
665	const_iv (O_RDONLY)	911	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	912	const_iv (O_WRONLY)
		913	const_iv (O_RDWR)
667	const_iv (O_CREAT)	914	const_iv (O_CREAT)
668	const_iv (O_TRUNC)	915	const_iv (O_TRUNC)
669	#ifndef _WIN32	916	const_iv (O_EXCL)
		917	const_iv (O_APPEND)
		918
		919	const_iv (O_ASYNC)
		920	const_iv (O_DIRECT)
		921	const_iv (O_NOATIME)
		922
		923	const_iv (O_CLOEXEC)
		924	const_iv (O_NOCTTY)
		925	const_iv (O_NOFOLLOW)
		926	const_iv (O_NONBLOCK)
		927	const_iv (O_EXEC)
		928	const_iv (O_SEARCH)
		929	const_iv (O_DIRECTORY)
		930	const_iv (O_DSYNC)
		931	const_iv (O_RSYNC)
		932	const_iv (O_SYNC)
		933	const_iv (O_TTY_INIT)
		934
670	const_iv (S_IFIFO)	935	const_iv (S_IFIFO)
671	#endif	936	const_iv (S_IFCHR)
		937	const_iv (S_IFBLK)
		938	const_iv (S_IFLNK)
		939	const_iv (S_IFREG)
		940	const_iv (S_IFDIR)
		941	const_iv (S_IFWHT)
		942	const_iv (S_IFSOCK)
		943	const_iv (S_IFMT)
		944
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	945	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	946	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	947	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	948	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	949	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	950	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		951
		952	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		953	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		954	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		955	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		956	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678		957
679	const_iv (ST_RDONLY)	958	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	959	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	960	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	961	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	966	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	967	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	968	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	969	const_iv (ST_RELATIME)
691		970
		971	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	972	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	973	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	974	const_iv (PROT_WRITE)
696		975
697	/*const_iv (MAP_FIXED)*/	976	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	977	const_iv (MAP_PRIVATE)
…		…
704	const_iv (MAP_LOCKED)	983	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	984	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	985	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	986	const_iv (MAP_NONBLOCK)
708		987
		988	const_iv (FIEMAP_FLAG_SYNC)
		989	const_iv (FIEMAP_FLAG_XATTR)
		990	const_iv (FIEMAP_FLAGS_COMPAT)
		991	const_iv (FIEMAP_EXTENT_LAST)
		992	const_iv (FIEMAP_EXTENT_UNKNOWN)
		993	const_iv (FIEMAP_EXTENT_DELALLOC)
		994	const_iv (FIEMAP_EXTENT_ENCODED)
		995	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		996	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		997	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		998	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		999	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1000	const_iv (FIEMAP_EXTENT_MERGED)
		1001	const_iv (FIEMAP_EXTENT_SHARED)
		1002
		1003	const_iv (SPLICE_F_MOVE)
		1004	const_iv (SPLICE_F_NONBLOCK)
		1005	const_iv (SPLICE_F_MORE)
		1006	const_iv (SPLICE_F_GIFT)
		1007
		1008	const_iv (SEEK_DATA)
		1009	const_iv (SEEK_HOLE)
		1010
		1011	/* libeio constants */
		1012	const_eio (SEEK_SET)
		1013	const_eio (SEEK_CUR)
		1014	const_eio (SEEK_END)
		1015
709	const_iv (MCL_FUTURE)	1016	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	1017	const_eio (MCL_CURRENT)
711		1018
712	const_eio (MS_ASYNC)	1019	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	1020	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	1021	const_eio (MS_SYNC)
715		1022
716	const_eio (MT_MODIFY)	1023	const_eio (MT_MODIFY)
717		1024
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1025	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	1026	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1027	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1028
		1029	const_eio (FALLOC_FL_KEEP_SIZE)
		1030	const_eio (FALLOC_FL_PUNCH_HOLE)
721		1031
722	const_eio (READDIR_DENTS)	1032	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	1033	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	1034	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1035	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1046	};
737		1047
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1048	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1049	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1050	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1051	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
741		1052
742	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1053	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));	1054	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1055
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1056	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1057
747	create_respipe ();	1058	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	}	1059	}
755		1060
756	void	1061	void
		1062	reinit ()
		1063	PROTOTYPE:
		1064
		1065	void
757	max_poll_reqs (int nreqs)	1066	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1067	PROTOTYPE: $
759	CODE:	1068	CODE:
760	eio_set_max_poll_reqs (nreqs);	1069	eio_set_max_poll_reqs (nreqs);
761		1070
762	void	1071	void
…		…
764	PROTOTYPE: $	1073	PROTOTYPE: $
765	CODE:	1074	CODE:
766	eio_set_max_poll_time (nseconds);	1075	eio_set_max_poll_time (nseconds);
767		1076
768	void	1077	void
769	min_parallel (int nthreads)	1078	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1079	PROTOTYPE: $
771	CODE:	1080	CODE:
772	eio_set_min_parallel (nthreads);	1081	eio_set_min_parallel (nthreads);
773		1082
774	void	1083	void
775	max_parallel (int nthreads)	1084	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1085	PROTOTYPE: $
777	CODE:	1086	CODE:
778	eio_set_max_parallel (nthreads);	1087	eio_set_max_parallel (nthreads);
779		1088
780	void	1089	void
781	max_idle (int nthreads)	1090	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1091	PROTOTYPE: $
783	CODE:	1092	CODE:
784	eio_set_max_idle (nthreads);	1093	eio_set_max_idle (nthreads);
785		1094
786	void	1095	void
		1096	idle_timeout (unsigned int seconds)
		1097	PROTOTYPE: $
		1098	CODE:
		1099	eio_set_idle_timeout (seconds);
		1100
		1101	void
787	max_outstanding (int maxreqs)	1102	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1103	PROTOTYPE: $
789	CODE:	1104	CODE:
790	max_outstanding = maxreqs;	1105	max_outstanding = maxreqs;
791		1106
792	void	1107	void
		1108	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1109	PPCODE:
		1110	{
		1111	dREQ;
		1112
		1113	req->type = EIO_WD_OPEN;
		1114	req_set_path1 (req, pathname);
		1115
		1116	REQ_SEND;
		1117	}
		1118
		1119	void
793	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1120	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1121	PPCODE:
796	{	1122	{
797	dREQ;	1123	dREQ;
798		1124
799	req->type = EIO_OPEN;	1125	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1126	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1127	req->int1 = flags;
803	req->int2 = mode;	1128	req->int2 = mode;
804		1129
805	REQ_SEND;	1130	REQ_SEND;
806	}	1131	}
807		1132
808	void	1133	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1135	ALIAS:
812	aio_fsync = EIO_FSYNC	1136	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1137	aio_fdatasync = EIO_FDATASYNC
		1138	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1139	PPCODE:
815	{	1140	{
816	int fd = s_fileno_croak (fh, 0);	1141	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1142	dREQ;
818		1143
819	req->type = ix;	1144	req->type = ix;
820	req->sv1 = newSVsv (fh);	1145	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1146	req->int1 = fd;
822		1147
823	REQ_SEND (req);	1148	REQ_SEND;
824	}	1149	}
825		1150
826	void	1151	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1152	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1153	PPCODE:
830	{	1154	{
831	int fd = s_fileno_croak (fh, 0);	1155	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1156	dREQ;
833		1157
834	req->type = EIO_SYNC_FILE_RANGE;	1158	req->type = EIO_SYNC_FILE_RANGE;
835	req->sv1 = newSVsv (fh);	1159	req->sv1 = newSVsv (fh);
836	req->int1 = fd;	1160	req->int1 = fd;
837	req->offs = offset;	1161	req->offs = offset;
838	req->size = nbytes;	1162	req->size = nbytes;
839	req->int2 = flags;	1163	req->int2 = flags;
840		1164
841	REQ_SEND (req);	1165	REQ_SEND;
		1166	}
		1167
		1168	void
		1169	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1170	PPCODE:
		1171	{
		1172	int fd = s_fileno_croak (fh, 0);
		1173	dREQ;
		1174
		1175	req->type = EIO_FALLOCATE;
		1176	req->sv1 = newSVsv (fh);
		1177	req->int1 = fd;
		1178	req->int2 = mode;
		1179	req->offs = offset;
		1180	req->size = len;
		1181
		1182	REQ_SEND;
842	}	1183	}
843		1184
844	void	1185	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1186	aio_close (SV *fh, SV *callback=&PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1187	PPCODE:
848	{	1188	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1189	static int close_fd = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1190	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1191	dREQ;
852		1192
853	if (close_pipe < 0)	1193	if (expect_false (close_fd < 0))
854	{	1194	{
855	int pipefd [2];	1195	int pipefd [2];
856		1196
		1197	if (
		1198	#ifdef _WIN32
		1199	_pipe (pipefd, 1, _O_BINARY) < 0
		1200	#else
857	if (pipe (pipefd) < 0	1201	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1202	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1203	#endif
		1204	|| close (pipefd [1]) < 0
		1205	)
860	abort (); /*D*/	1206	abort (); /*D*/
861		1207
862	close_pipe = pipefd [0];	1208	close_fd = pipefd [0];
863	}	1209	}
864		1210
865	req->type = EIO_DUP2;	1211	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1212	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1213	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1214	req->int2 = fd;
869		1215
870	REQ_SEND (req);	1216	REQ_SEND;
		1217	}
		1218
		1219	void
		1220	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1221	PPCODE:
		1222	{
		1223	int fd = s_fileno_croak (fh, 0);
		1224	dREQ;
		1225
		1226	req->type = EIO_SEEK;
		1227	req->sv1 = newSVsv (fh);
		1228	req->int1 = fd;
		1229	req->offs = SvVAL64 (offset);
		1230	req->int2 = whence;
		1231
		1232	REQ_SEND;
871	}	1233	}
872		1234
873	void	1235	void
874	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1236	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875	ALIAS:	1237	ALIAS:
876	aio_read = EIO_READ	1238	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1239	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1240	PPCODE:
880	{	1241	{
881	STRLEN svlen;	1242	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1243	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1244	char *svptr = SvPVbyte (data, svlen);
…		…
897	}	1258	}
898	else	1259	else
899	{	1260	{
900	/* read: check type and grow scalar as necessary */	1261	/* read: check type and grow scalar as necessary */
901	SvUPGRADE (data, SVt_PV);	1262	SvUPGRADE (data, SVt_PV);
		1263	if (SvLEN (data) >= SvCUR (data))
902	svptr = SvGROW (data, len + dataoffset + 1);	1264	svptr = SvGROW (data, len + dataoffset + 1);
		1265	else if (SvCUR (data) < len + dataoffset)
		1266	croak ("length + dataoffset outside of scalar, and cannot grow");
903	}	1267	}
904		1268
905	{	1269	{
906	dREQ;	1270	dREQ;
907		1271
…		…
923	REQ_SEND;	1287	REQ_SEND;
924	}	1288	}
925	}	1289	}
926		1290
927	void	1291	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1292	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
929	PROTOTYPE: $$;$	1293	ALIAS:
		1294	aio_readlink = EIO_READLINK
		1295	aio_realpath = EIO_REALPATH
930	PPCODE:	1296	PPCODE:
931	{	1297	{
932	SV *data;
933	dREQ;	1298	dREQ;
934		1299
935	req->type = EIO_READLINK;	1300	req->type = ix;
936	req->sv1 = newSVsv (path);	1301	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1302
939	REQ_SEND;	1303	REQ_SEND;
940	}	1304	}
941		1305
942	void	1306	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1307	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1308	PPCODE:
946	{	1309	{
947	int ifd = s_fileno_croak (in_fh , 0);	1310	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1311	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1312	dREQ;
950		1313
951	req->type = EIO_SENDFILE;	1314	req->type = EIO_SENDFILE;
952	req->sv1 = newSVsv (out_fh);	1315	req->sv1 = newSVsv (out_fh);
953	req->int1 = ofd;	1316	req->int1 = ofd;
…		…
959	REQ_SEND;	1322	REQ_SEND;
960	}	1323	}
961		1324
962	void	1325	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1326	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1327	PPCODE:
966	{	1328	{
967	int fd = s_fileno_croak (fh, 0);	1329	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1330	dREQ;
969		1331
970	req->type = EIO_READAHEAD;	1332	req->type = EIO_READAHEAD;
971	req->sv1 = newSVsv (fh);	1333	req->sv1 = newSVsv (fh);
972	req->int1 = fd;	1334	req->int1 = fd;
…		…
984	aio_statvfs = EIO_STATVFS	1346	aio_statvfs = EIO_STATVFS
985	PPCODE:	1347	PPCODE:
986	{	1348	{
987	dREQ;	1349	dREQ;
988		1350
989	req->sv1 = newSVsv (fh_or_path);	1351	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		1352
1002	REQ_SEND;	1353	REQ_SEND;
1003	}	1354	}
		1355
		1356	UV
		1357	major (UV dev)
		1358	ALIAS:
		1359	minor = 1
		1360	CODE:
		1361	RETVAL = ix ? major (dev) : minor (dev);
		1362	OUTPUT:
		1363	RETVAL
		1364
		1365	UV
		1366	makedev (UV maj, UV min)
		1367	CODE:
		1368	RETVAL = makedev (maj, min);
		1369	OUTPUT:
		1370	RETVAL
1004		1371
1005	void	1372	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1373	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1007	PPCODE:	1374	PPCODE:
1008	{	1375	{
1009	dREQ;	1376	dREQ;
1010		1377
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1378	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1379	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1380	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		1381
1026	REQ_SEND;	1382	REQ_SEND;
1027	}	1383	}
1028		1384
1029	void	1385	void
1030	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1386	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1031	PPCODE:	1387	PPCODE:
1032	{	1388	{
1033	dREQ;	1389	dREQ;
1034		1390
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1391	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1392	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		1393
1049	REQ_SEND;	1394	REQ_SEND;
1050	}	1395	}
1051		1396
1052	void	1397	void
1053	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1398	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:	1399	PPCODE:
1058	{	1400	{
1059	dREQ;	1401	dREQ;
1060		1402
1061	req->int2 = mode;	1403	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1404	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		1405
1075	REQ_SEND;	1406	REQ_SEND;
1076	}	1407	}
1077		1408
1078	void	1409	void
…		…
1081	{	1412	{
1082	dREQ;	1413	dREQ;
1083		1414
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1415	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1416	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1417	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		1418
1099	REQ_SEND;	1419	REQ_SEND;
1100	}	1420	}
1101		1421
1102	void	1422	void
…		…
1104	PPCODE:	1424	PPCODE:
1105	{	1425	{
1106	dREQ;	1426	dREQ;
1107		1427
1108	req->type = EIO_READDIR;	1428	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;	1429	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1430
1113	if (flags & EIO_READDIR_DENTS)	1431	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1432	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1433
		1434	req_set_path1 (req, pathname);
		1435
1116	REQ_SEND;	1436	REQ_SEND;
		1437	}
		1438
		1439	void
		1440	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1441	PPCODE:
		1442	{
		1443	dREQ;
		1444
		1445	req->type = EIO_MKDIR;
		1446	req->int2 = mode;
		1447	req_set_path1 (req, pathname);
		1448
		1449	REQ_SEND;
1117	}	1450	}
1118		1451
1119	void	1452	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1453	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1121	ALIAS:	1454	ALIAS:
…		…
1125	PPCODE:	1458	PPCODE:
1126	{	1459	{
1127	dREQ;	1460	dREQ;
1128		1461
1129	req->type = ix;	1462	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1463	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1464
1133	REQ_SEND;	1465	REQ_SEND;
1134	}	1466	}
1135		1467
1136	void	1468	void
…		…
1139	aio_link = EIO_LINK	1471	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1472	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1473	aio_rename = EIO_RENAME
1142	PPCODE:	1474	PPCODE:
1143	{	1475	{
		1476	eio_wd wd2 = 0;
1144	dREQ;	1477	dREQ;
1145		1478
1146	req->type = ix;	1479	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1480	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1481	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1482	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1483
1152	REQ_SEND;	1484	REQ_SEND;
1153	}	1485	}
1154		1486
1155	void	1487	void
…		…
1157	PPCODE:	1489	PPCODE:
1158	{	1490	{
1159	dREQ;	1491	dREQ;
1160		1492
1161	req->type = EIO_MKNOD;	1493	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1494	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1495	req->offs = dev;
		1496	req_set_path1 (req, pathname);
1166		1497
1167	REQ_SEND;	1498	REQ_SEND;
1168	}	1499	}
1169		1500
1170	void	1501	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1502	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172	ALIAS:	1503	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1504	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1505	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1506	PPCODE:
1177	{	1507	{
1178	STRLEN svlen;	1508	STRLEN svlen;
		1509	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1510	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);
1181		1511
1182	if (offset < 0)	1512	if (offset < 0)
1183	offset += svlen;	1513	offset += svlen;
1184		1514
1185	if (offset < 0 || offset > svlen)	1515	if (offset < 0 || offset > svlen)
…		…
1190		1520
1191	{	1521	{
1192	dREQ;	1522	dREQ;
1193		1523
1194	req->type = ix;	1524	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1525	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1526	req->ptr2 = (char *)svptr + offset;
		1527	req->size = len;
1198	req->int1 = flags;	1528	req->int1 = flags;
1199		1529
1200	REQ_SEND;	1530	REQ_SEND;
1201	}	1531	}
1202	}	1532	}
1203		1533
1204	void	1534	void
		1535	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1536	PPCODE:
		1537	{
		1538	STRLEN svlen;
		1539	char *svptr = SvPVbyte (data, svlen);
		1540	UV len = SvUV (length);
		1541
		1542	if (offset < 0)
		1543	offset += svlen;
		1544
		1545	if (offset < 0 || offset > svlen)
		1546	croak ("offset outside of scalar");
		1547
		1548	if (!SvOK (length) || len + offset > svlen)
		1549	len = svlen - offset;
		1550
		1551	{
		1552	dREQ;
		1553
		1554	req->type = EIO_MLOCK;
		1555	req->sv2 = SvREFCNT_inc (data);
		1556	req->ptr2 = (char *)svptr + offset;
		1557	req->size = len;
		1558
		1559	REQ_SEND;
		1560	}
		1561	}
		1562
		1563	void
		1564	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1565	PPCODE:
		1566	{
		1567	dREQ;
		1568
		1569	req->type = EIO_MLOCKALL;
		1570	req->int1 = flags;
		1571
		1572	REQ_SEND;
		1573	}
		1574
		1575	void
		1576	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1577	PPCODE:
		1578	{
		1579	int fd = s_fileno_croak (fh, 0);
		1580	dREQ;
		1581
		1582	req->type = EIO_CUSTOM;
		1583	req->sv1 = newSVsv (fh);
		1584	req->int1 = fd;
		1585
		1586	req->feed = fiemap;
		1587	#if HAVE_FIEMAP
		1588	/* keep our fingers crossed that the next two types are 64 bit */
		1589	req->offs = start;
		1590	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1591	req->int2 = flags;
		1592	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1593	#endif
		1594
		1595	REQ_SEND;
		1596	}
		1597
		1598	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1599	aio_busy (double delay, SV *callback=&PL_sv_undef)
1206	PPCODE:	1600	PPCODE:
1207	{	1601	{
1208	dREQ;	1602	dREQ;
1209		1603
…		…
1213	REQ_SEND;	1607	REQ_SEND;
1214	}	1608	}
1215		1609
1216	void	1610	void
1217	aio_group (SV *callback=&PL_sv_undef)	1611	aio_group (SV *callback=&PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1612	PPCODE:
1220	{	1613	{
1221	dREQ;	1614	dREQ;
1222		1615
1223	req->type = EIO_GROUP;	1616	req->type = EIO_GROUP;
…		…
1240	REQ_SEND;	1633	REQ_SEND;
1241	}	1634	}
1242		1635
1243	int	1636	int
1244	aioreq_pri (int pri = 0)	1637	aioreq_pri (int pri = 0)
1245	PROTOTYPE: ;$
1246	CODE:	1638	CODE:
1247	RETVAL = next_pri;	1639	RETVAL = next_pri;
1248	if (items > 0)	1640	if (items > 0)
1249	{	1641	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1642	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1654	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1655	next_pri = nice;
1264		1656
1265	void	1657	void
1266	flush ()	1658	flush ()
1267	PROTOTYPE:
1268	CODE:	1659	CODE:
1269	while (eio_nreqs ())	1660	while (eio_nreqs ())
1270	{	1661	{
1271	poll_wait ();	1662	poll_wait ();
1272	poll_cb ();	1663	poll_cb ();
1273	}	1664	}
1274		1665
1275	int	1666	int
1276	poll()	1667	poll ()
1277	PROTOTYPE:
1278	CODE:	1668	CODE:
1279	poll_wait ();	1669	poll_wait ();
1280	RETVAL = poll_cb ();	1670	RETVAL = poll_cb ();
1281	OUTPUT:	1671	OUTPUT:
1282	RETVAL	1672	RETVAL
1283		1673
1284	int	1674	int
1285	poll_fileno()	1675	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1676	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1677	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1678	OUTPUT:
1290	RETVAL	1679	RETVAL
1291		1680
1292	int	1681	int
1293	poll_cb(...)	1682	poll_cb (...)
1294	PROTOTYPE:	1683	PROTOTYPE:
1295	CODE:	1684	CODE:
1296	RETVAL = poll_cb ();	1685	RETVAL = poll_cb ();
1297	OUTPUT:	1686	OUTPUT:
1298	RETVAL	1687	RETVAL
1299		1688
1300	void	1689	void
1301	poll_wait()	1690	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1691	CODE:
1304	poll_wait ();	1692	poll_wait ();
1305		1693
1306	int	1694	int
1307	nreqs()	1695	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1696	CODE:
1310	RETVAL = eio_nreqs ();	1697	RETVAL = eio_nreqs ();
1311	OUTPUT:	1698	OUTPUT:
1312	RETVAL	1699	RETVAL
1313		1700
1314	int	1701	int
1315	nready()	1702	nready ()
1316	PROTOTYPE:
1317	CODE:	1703	CODE:
1318	RETVAL = eio_nready ();	1704	RETVAL = eio_nready ();
1319	OUTPUT:	1705	OUTPUT:
1320	RETVAL	1706	RETVAL
1321		1707
1322	int	1708	int
1323	npending()	1709	npending ()
1324	PROTOTYPE:
1325	CODE:	1710	CODE:
1326	RETVAL = eio_npending ();	1711	RETVAL = eio_npending ();
1327	OUTPUT:	1712	OUTPUT:
1328	RETVAL	1713	RETVAL
1329		1714
1330	int	1715	int
1331	nthreads()	1716	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1717	CODE:
1334	RETVAL = eio_nthreads ();	1718	RETVAL = eio_nthreads ();
1335	OUTPUT:	1719	OUTPUT:
1336	RETVAL	1720	RETVAL
1337		1721
1338	int	1722	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1723	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	1724	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1725	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1726	OUTPUT:
1348	RETVAL	1727	RETVAL
1349		1728
1350	ssize_t	1729	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1730	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1731	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1732	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1733	OUTPUT:
1356	RETVAL	1734	RETVAL
1357		1735
1358	void	1736	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1737	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1738	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1739	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1740	{
1364	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1741	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1742	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1743	if (addr == (void *)-1)
1367	XSRETURN_NO;	1744	XSRETURN_NO;
1368		1745
		1746	sv_force_normal (scalar);
		1747
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1748	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1749	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1750	->mg_obj = (SV *)length;
1372		1751
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1752	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1753
1374	if (!(prot & PROT_WRITE))	1754	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1755	SvREADONLY_on (scalar);
		1756
		1757	if (SvLEN (scalar))
		1758	Safefree (SvPVX (scalar));
1376		1759
1377	SvPVX (scalar) = (char *)addr;	1760	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1761	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1762	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1763	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1765	XSRETURN_YES;
1383	}	1766	}
1384		1767
1385	void	1768	void
1386	munmap (SV *scalar)	1769	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1770	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1771	sv_unmagic (scalar, MMAP_MAGIC);
1390		1772
1391	int	1773	int
1392	mlockall (int flags)	1774	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1775	ALIAS:
		1776	mprotect = 1
1394	CODE:	1777	CODE:
		1778	{
		1779	STRLEN svlen;
		1780	void *addr = SvPVbyte (scalar, svlen);
		1781	size_t len = SvUV (length);
		1782
		1783	if (offset < 0)
		1784	offset += svlen;
		1785
		1786	if (offset < 0 || offset > svlen)
		1787	croak ("offset outside of scalar");
		1788
		1789	if (!SvOK (length) || len + offset > svlen)
		1790	len = svlen - offset;
		1791
		1792	addr = (void *)(((intptr_t)addr) + offset);
		1793	eio_page_align (&addr, &len);
		1794
		1795	switch (ix)
		1796	{
		1797	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1798	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1799	}
		1800	}
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1806	CODE:
		1807	{
		1808	STRLEN svlen;
		1809	void *addr = SvPVbyte (scalar, svlen);
		1810	size_t len = SvUV (length);
		1811
		1812	if (offset < 0)
		1813	offset += svlen;
		1814
		1815	if (offset < 0 || offset > svlen)
		1816	croak ("offset outside of scalar");
		1817
		1818	if (!SvOK (length) || len + offset > svlen)
		1819	len = svlen - offset;
		1820
		1821	addr = (void *)(((intptr_t)addr) + offset);
		1822	eio_page_align (&addr, &len);
1395	#if _POSIX_MEMLOCK	1823	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1824	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	1825	#else
1402	RETVAL = -1;	1826	RETVAL = EIO_ENOSYS ();
1403	errno = ENOSYS;
1404	#endif	1827	#endif
		1828	}
1405	OUTPUT:	1829	OUTPUT:
1406	RETVAL	1830	RETVAL
1407		1831
1408	int	1832	int
1409	munlockall ()	1833	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1834	CODE:
1412	#if _POSIX_MEMLOCK	1835	#if _POSIX_MEMLOCK
1413	munlockall ();	1836	munlockall ();
1414	#else	1837	#else
1415	RETVAL = -1;	1838	RETVAL = EIO_ENOSYS ();
1416	errno = ENOSYS;
1417	#endif	1839	#endif
1418	OUTPUT:	1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1845	CODE:
		1846	{
		1847	#if HAVE_LINUX_SPLICE
		1848	loff_t off_in_, off_out_;
		1849	RETVAL = splice (
		1850	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1851	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1852	length, flags
		1853	);
		1854	#else
		1855	RETVAL = EIO_ENOSYS ();
		1856	#endif
		1857	}
		1858	OUTPUT:
		1859	RETVAL
		1860
		1861	int
		1862	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1863	CODE:
		1864	#if HAVE_LINUX_SPLICE
		1865	RETVAL = tee (rfh, wfh, length, flags);
		1866	#else
		1867	RETVAL = EIO_ENOSYS ();
		1868	#endif
		1869	OUTPUT:
1419	RETVAL	1870	RETVAL
1420		1871
1421	void _on_next_submit (SV *cb)	1872	void _on_next_submit (SV *cb)
1422	CODE:	1873	CODE:
1423	SvREFCNT_dec (on_next_submit);	1874	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1875	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		1876
1426	PROTOTYPES: DISABLE	1877	PROTOTYPES: DISABLE
1427		1878
		1879	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1880
		1881	BOOT:
		1882	{
		1883	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1884	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1885	}
		1886
		1887	void
		1888	DESTROY (SV *self)
		1889	CODE:
		1890	{
		1891	aio_wd wd = SvAIO_WD (self);
		1892	#if HAVE_AT
		1893	{
		1894	SV *callback = &PL_sv_undef;
		1895	dREQ; /* clobbers next_pri :/ */
		1896	next_pri = req->pri; /* restore next_pri */
		1897	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1898	req->type = EIO_WD_CLOSE;
		1899	req->wd = wd;
		1900	REQ_SEND;
		1901	}
		1902	#else
		1903	eio_wd_close_sync (wd);
		1904	#endif
		1905	}
		1906
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1907	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		1908
1430	void	1909	void
1431	cancel (aio_req_ornot req)	1910	cancel (aio_req_ornot req)
1432	CODE:	1911	CODE:

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