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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 1.210 by root, Fri Apr 6 11:39:25 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
25	/* perl namespace pollution */	32	/* perl namespace pollution */
26	#undef VERSION	33	#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		34
77	/* perl stupidly overrides readdir and maybe others */	35	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	36	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	37	#undef readdir
80	#undef opendir	38	#undef opendir
81	#undef closedir	39	#undef closedir
82		40
		41	#ifdef _WIN32
		42
		43	// perl overrides all those nice libc functions
		44
		45	#undef malloc
		46	#undef free
		47	#undef open
		48	#undef read
		49	#undef write
		50	#undef send
		51	#undef recv
		52	#undef stat
		53	#undef lstat
		54	#undef fstat
		55	#undef truncate
		56	#undef ftruncate
		57	#undef open
		58	#undef link
		59	#undef close
		60	#undef unlink
		61	#undef mkdir
		62	#undef rmdir
		63	#undef rename
		64	#undef lseek
		65	#undef opendir
		66	#undef readdir
		67	#undef closedir
		68	#undef chmod
		69	#undef fchmod
		70	#undef dup
		71	#undef dup2
		72	#undef abort
		73	#undef pipe
		74
		75	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STATI64
84		77
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	78	#else
91	# define VAL64 NV	79
92	# define SvVAL64 SvNV	80	#include <sys/time.h>
93	# define newSVval64 newSVnv	81	#include <sys/select.h>
		82	#include <unistd.h>
		83	#include <utime.h>
		84	#include <signal.h>
		85
		86	#define EIO_STRUCT_STAT Stat_t
		87
94	#endif	88	#endif
95		89
96	/*****************************************************************************/	90	/*****************************************************************************/
97		91
98	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
108		102
109	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
112		106
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		108
115	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
116	SV *callback; \	110	SV *callback; \
117	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
118	STRLEN stroffset; \	113	STRLEN stroffset; \
119	SV *self;	114	SV *self;
120		115
121	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
122		117
		118	#include "libeio/config.h"
123	#include "libeio/eio.h"	119	#include "libeio/eio.h"
124		120
125	#ifndef POSIX_FADV_NORMAL	121	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	122	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	123	static void req_destroy (eio_req *grp);
		124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
128	#endif	130	#endif
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		131
145	#ifndef ST_NODEV	132	#if !HAVE_POSIX_MADVISE
146	# define ST_NODEV 0	133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
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
176	#ifndef MCL_CURRENT
177	# define MCL_CURRENT 0
178	#endif
179	#ifndef MCL_FUTURE
180	# define MCL_FUTURE 0
181	#endif	134	#endif
182		135
183	#ifndef MAP_ANONYMOUS	136	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	137	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	138	# define MAP_ANONYMOUS MAP_ANON
186	# else	139	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	141	# endif
189	#endif	142	#endif
190	#ifndef MAP_HUGETLB	143
191	# define MAP_HUGETLB 0	144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
192	#endif	149	#endif
193	#ifndef MAP_LOCKED	150	#ifndef major
194	# define MAP_LOCKED 0	151	# define major(dev) ((dev) >> 8)
195	#endif	152	#endif
196	#ifndef MAP_NORESERVE	153	#ifndef minor
197	# define MAP_NORESERVE 0	154	# define minor(dev) ((dev) & 0xff)
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif	155	#endif
205		156
206	#ifndef PAGESIZE	157	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	158	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	159	#endif
209		160
210	static int req_invoke (eio_req *req);	161	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	162
212	static void req_destroy (eio_req *grp);	163	static void
213	#define EIO_DESTROY(req) req_destroy (req)	164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	for (;;)
		170	{
		171	int count = req->int3;
		172
		173	if (count < 0)
		174	{
		175	struct fiemap fiemap;
		176
		177	fiemap.fm_start = req->offs;
		178	fiemap.fm_length = req->size;
		179	fiemap.fm_flags = req->int2;
		180	fiemap.fm_extent_count = 0;
		181
		182	if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))
		183	return;
		184
		185	count = fiemap.fm_mapped_extents;
		186	}
		187
		188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194	req->flags |= EIO_FLAG_PTR1_FREE;
		195
		196	fiemap->fm_start = req->offs;
		197	fiemap->fm_length = req->size;
		198	fiemap->fm_flags = req->int2;
		199	fiemap->fm_extent_count = count;
		200
		201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		202	return;
		203
		204	if (req->int3 >= 0)
		205	break; /* when not autosizing we are done */
		206
		207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		208	break; /* autosizing successful, we are done */
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
214		221
215	enum {	222	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	224	};
218		225
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
223		229
224	static SV *on_next_submit;	230	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	232	static int max_outstanding;
227		233
228	static s_epipe respipe;	234	static s_epipe respipe;
229		235
230	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
232		238
233	static void want_poll (void)	239	static void
		240	want_poll (void)
234	{	241	{
235	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
237	}	244	}
238		245
239	static void done_poll (void)	246	static void
		247	done_poll (void)
240	{	248	{
241	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
243	}	251	}
244		252
245	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
247	{	256	{
248	if (!req->self)	257	if (!req->self)
249	{	258	{
250	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	261	}
253		262
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	264	}
256		265
257	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
258	{	274	{
259	MAGIC *mg;	275	MAGIC *mg;
260		276
261	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
266		283
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		285
269	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	287	}
271		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
272	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
273	{	302	{
274	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
275	{	304	{
276	dSP;	305	dSP;
277		306
…		…
285	FREETMPS;	314	FREETMPS;
286	LEAVE;	315	LEAVE;
287	}	316	}
288	}	317	}
289		318
		319	static void
290	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
291	{	321	{
292	eio_submit (req);	322	eio_submit (req);
293		323
294	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
295	{	325	{
…		…
302	PUTBACK;	332	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
304	}	334	}
305	}	335	}
306		336
		337	static int
307	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
308	{	339	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
313		342
314	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
315	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
316	ENTER;	349	ENTER;
317	SAVETMPS;	350	SAVETMPS;
318	PUSHMARK (SP);	351	PUSHMARK (SP);
319	EXTEND (SP, 1);	352	EXTEND (SP, 1);
320		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
321	switch (req->type)	367	switch (req->type)
322	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
323	case EIO_READDIR:	373	case EIO_READDIR:
324	{	374	{
325	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
326		376
327	if (req->result >= 0)	377	if (req->result >= 0)
…		…
415	case EIO_STATVFS:	465	case EIO_STATVFS:
416	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
417	{	467	{
418	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
419		469
		470	#ifndef _WIN32
420	if (req->result >= 0)	471	if (req->result >= 0)
421	{	472	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	474	HV *hv = newHV ();
424		475
…		…
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	485	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);	486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	487	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);	488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	489	}
		490	#endif
439		491
440	PUSHs (rv);	492	PUSHs (rv);
441	}	493	}
442		494
443	break;	495	break;
…		…
459	case EIO_NOP:	511	case EIO_NOP:
460	case EIO_BUSY:	512	case EIO_BUSY:
461	break;	513	break;
462		514
463	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
464	if (req->result > 0)	517	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	519	break;
467		520
468	case EIO_STAT:	521	case EIO_STAT:
469	case EIO_LSTAT:	522	case EIO_LSTAT:
470	case EIO_FSTAT:	523	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
472	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
475	break;	535	break;
476		536
477	case EIO_READ:	537	case EIO_READ:
478	{	538	{
479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
484	}	544	}
485	break;	545	break;
486		546
487	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	if (!req->result)
		551	{
		552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		553
		554	if (fiemap->fm_extent_count)
		555	{
		556	AV *av = newAV ();
		557	int i;
		558
		559	while (fiemap->fm_mapped_extents)
		560	{
		561	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		562	AV *ext_av = newAV ();
		563
		564	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		565	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		566	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		567	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		568
		569	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		570	}
		571
		572	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		573	}
		574	else
		575	{
		576	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		577	PUSHs (sv_result);
		578	}
		579	}
		580	}
		581	else
		582	PUSHs (sv_result);
		583	break;
		584
		585	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	586	if (req->result > 0)
489	req->result = 0;	587	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	588	/* FALLTHROUGH */
491		589
492	default:	590	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	591	PUSHs (sv_result);
494	break;	592	break;
495	}	593	}
496		594
497	errno = req->errorno;	595	errno = req->errorno;
498		596
499	PUTBACK;	597	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	598	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	599	SPAGAIN;
502		600
		601	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		602	SvREFCNT_dec (sv_result);
		603	else
		604	sv_result_cache = sv_result;
		605
503	FREETMPS;	606	FREETMPS;
504	LEAVE;	607	LEAVE;
505		608
506	PUTBACK;	609	PUTBACK;
507	}	610	}
508		611
509	return !!SvTRUE (ERRSV);	612	return !!SvTRUE (ERRSV);
510	}	613	}
511		614
		615	static void
512	static void req_destroy (aio_req req)	616	req_destroy (aio_req req)
513	{	617	{
514	if (req->self)	618	if (req->self)
515	{	619	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	620	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	621	SvREFCNT_dec (req->self);
518	}	622	}
519		623
520	SvREFCNT_dec (req->sv1);	624	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	625	SvREFCNT_dec (req->sv2);
		626	SvREFCNT_dec (req->sv3);
		627	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	628	SvREFCNT_dec (req->callback);
523		629
524	Safefree (req);	630	free (req);
525	}	631	}
526		632
		633	static void
527	static void req_cancel_subs (aio_req grp)	634	req_cancel_subs (aio_req grp)
528	{	635	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	636	if (grp->type != EIO_GROUP)
532	return;	637	return;
533		638
534	SvREFCNT_dec (grp->sv2);	639	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	640	grp->sv2 = 0;
536		641
537	eio_grp_cancel (grp);	642	eio_grp_cancel (grp);
538	}	643	}
539		644
540	static void	645	static void ecb_cold
541	create_respipe (void)	646	create_respipe (void)
542	{	647	{
543	if (s_epipe_renew (&respipe))	648	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	649	croak ("IO::AIO: unable to initialize result pipe");
545	}	650	}
546		651
547	static void poll_wait (void)	652	static void
		653	poll_wait (void)
548	{	654	{
549	while (eio_nreqs ())	655	while (eio_nreqs ())
550	{	656	{
551	int size;	657	int size;
552		658
…		…
561		667
562	s_epipe_wait (&respipe);	668	s_epipe_wait (&respipe);
563	}	669	}
564	}	670	}
565		671
566	static int poll_cb (void)	672	static int
		673	poll_cb (void)
567	{	674	{
568	for (;;)	675	for (;;)
569	{	676	{
570	int res = eio_poll ();	677	int res = eio_poll ();
571		678
…		…
577		684
578	poll_wait ();	685	poll_wait ();
579	}	686	}
580	}	687	}
581		688
582	static void atfork_child (void)	689	static void ecb_cold
		690	reinit (void)
583	{	691	{
584	create_respipe ();	692	create_respipe ();
		693
		694	if (eio_init (want_poll, done_poll) < 0)
		695	croak ("IO::AIO: unable to initialise eio library");
585	}	696	}
586		697
587	/*****************************************************************************/	698	/*****************************************************************************/
588		699
589	#if !_POSIX_MAPPED_FILES	700	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591	# define munmap(addr,length) (errno = ENOSYS, -1)	702	# define munmap(addr,length) (errno = ENOSYS, -1)
592	#endif	703	#endif
593		704
		705	#if !_POSIX_MEMORY_PROTECTION
		706	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		707	# define PROT_NONE 0
		708	# define PROT_WRITE 0
		709	# define MAP_PRIVATE 0
		710	# define MAP_SHARED 0
		711	# define MAP_FIXED 0
		712	#endif
		713
594	#define MMAP_MAGIC PERL_MAGIC_ext	714	#define MMAP_MAGIC PERL_MAGIC_ext
595		715
596	static int	716	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	718	{
599	int old_errno = errno;	719	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	721	errno = old_errno;
602		722
603	mg->mg_obj = 0; /* just in case */	723	mg->mg_obj = 0; /* just in case */
604		724
605	SvREADONLY_off (sv);	725	SvREADONLY_off (sv);
		726
		727	if (SvPVX (sv) != mg->mg_ptr)
		728	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		729
606	SvCUR_set (sv, 0);	730	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	731	SvPVX (sv) = 0;
609	SvOK_off (sv);	732	SvOK_off (sv);
610		733
611	return 0;	734	return 0;
612	}	735	}
…		…
622	{	745	{
623	SvGETMAGIC (cb_sv);	746	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	747	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	748	}
626		749
		750	static aio_req ecb_noinline
		751	dreq (SV *callback)
		752	{
		753	SV *cb_cv;
		754	aio_req req;
		755	int req_pri = next_pri;
		756	next_pri = EIO_PRI_DEFAULT;
		757
		758	cb_cv = get_cb (callback);
		759
		760	req = calloc (sizeof (*req), 1);
		761	if (!req)
		762	croak ("out of memory during eio_req allocation");
		763
		764	req->callback = SvREFCNT_inc (cb_cv);
		765	req->pri = req_pri;
		766
		767	return req;
		768	}
		769
627	#define dREQ \	770	#define dREQ \
628	SV *cb_cv; \	771	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		772
642	#define REQ_SEND \	773	#define REQ_SEND \
643	PUTBACK; \	774	PUTBACK; \
644	req_submit (req); \	775	req_submit (req); \
645	SPAGAIN; \	776	SPAGAIN; \
646	\	777	\
647	if (GIMME_V != G_VOID) \	778	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	779	XPUSHs (req_sv (req, aio_req_stash));
649		780
		781	ecb_inline void
		782	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		783	{
		784	if (expect_false (SvROK (path)))
		785	{
		786	SV *rv = SvRV (path);
		787	SV *wdob;
		788
		789	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		790	{
		791	path = AvARRAY (rv)[1];
		792	wdob = AvARRAY (rv)[0];
		793
		794	if (SvOK (wdob))
		795	{
		796	*wd = SvAIO_WD (wdob);
		797	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		798	}
		799	else
		800	*wd = EIO_INVALID_WD;
		801	}
		802	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		803	{
		804	*wd = (aio_wd)(long)SvIVX (rv);
		805	*wdsv = SvREFCNT_inc_NN (rv);
		806	*ptr = ".";
		807	return; /* path set to "." */
		808	}
		809	else
		810	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		811	}
		812
		813	*pathsv = newSVsv (path);
		814	*ptr = SvPVbyte_nolen (*pathsv);
		815	}
		816
		817	static void ecb_noinline
		818	req_set_path1 (aio_req req, SV *path)
		819	{
		820	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		821	}
		822
		823	static void ecb_noinline
		824	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		825	{
		826	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		827
		828	switch (SvTYPE (rv))
		829	{
		830	case SVt_PVIO:
		831	case SVt_PVLV:
		832	case SVt_PVGV:
		833	req->type = type_fh;
		834	req->sv1 = newSVsv (fh_or_path);
		835	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		836	break;
		837
		838	default:
		839	req->type = type_path;
		840	req_set_path1 (req, fh_or_path);
		841	break;
		842	}
		843	}
		844
		845	XS(boot_IO__AIO) ecb_cold;
		846
650	MODULE = IO::AIO PACKAGE = IO::AIO	847	MODULE = IO::AIO PACKAGE = IO::AIO
651		848
652	PROTOTYPES: ENABLE	849	PROTOTYPES: ENABLE
653		850
654	BOOT:	851	BOOT:
…		…
658	IV iv;	855	IV iv;
659	} *civ, const_iv[] = {	856	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	857	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	858	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	859	# define const_eio(name) { # name, (IV) EIO_ ## name },
		860
		861	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		862
		863	const_iv (ENOSYS)
663	const_iv (EXDEV)	864	const_iv (EXDEV)
664	const_iv (ENOSYS)	865	const_iv (EBADR)
		866
665	const_iv (O_RDONLY)	867	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	868	const_iv (O_WRONLY)
		869	const_iv (O_RDWR)
667	const_iv (O_CREAT)	870	const_iv (O_CREAT)
668	const_iv (O_TRUNC)	871	const_iv (O_TRUNC)
669	#ifndef _WIN32	872	const_iv (O_EXCL)
		873	const_iv (O_APPEND)
		874
		875	const_iv (O_ASYNC)
		876	const_iv (O_DIRECT)
		877	const_iv (O_NOATIME)
		878
		879	const_iv (O_CLOEXEC)
		880	const_iv (O_NOCTTY)
		881	const_iv (O_NOFOLLOW)
		882	const_iv (O_NONBLOCK)
		883	const_iv (O_EXEC)
		884	const_iv (O_SEARCH)
		885	const_iv (O_DIRECTORY)
		886	const_iv (O_DSYNC)
		887	const_iv (O_RSYNC)
		888	const_iv (O_SYNC)
		889	const_iv (O_TTY_INIT)
		890
670	const_iv (S_IFIFO)	891	const_iv (S_IFIFO)
671	#endif	892	const_iv (S_IFCHR)
		893	const_iv (S_IFBLK)
		894	const_iv (S_IFLNK)
		895	const_iv (S_IFREG)
		896	const_iv (S_IFDIR)
		897	const_iv (S_IFWHT)
		898	const_iv (S_IFSOCK)
		899	const_iv (S_IFMT)
		900
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	906	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		907
		908	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		909	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		910	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		911	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		912	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678		913
679	const_iv (ST_RDONLY)	914	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	915	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	916	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	917	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	922	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	923	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	924	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	925	const_iv (ST_RELATIME)
691		926
		927	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	928	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	929	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	930	const_iv (PROT_WRITE)
696		931
697	/*const_iv (MAP_FIXED)*/	932	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	933	const_iv (MAP_PRIVATE)
…		…
704	const_iv (MAP_LOCKED)	939	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	940	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	941	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	942	const_iv (MAP_NONBLOCK)
708		943
		944	const_iv (FIEMAP_FLAG_SYNC)
		945	const_iv (FIEMAP_FLAG_XATTR)
		946	const_iv (FIEMAP_FLAGS_COMPAT)
		947	const_iv (FIEMAP_EXTENT_LAST)
		948	const_iv (FIEMAP_EXTENT_UNKNOWN)
		949	const_iv (FIEMAP_EXTENT_DELALLOC)
		950	const_iv (FIEMAP_EXTENT_ENCODED)
		951	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		952	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		953	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		954	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		955	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		956	const_iv (FIEMAP_EXTENT_MERGED)
		957	const_iv (FIEMAP_EXTENT_SHARED)
		958
		959	const_eio (SEEK_SET)
		960	const_eio (SEEK_CUR)
		961	const_eio (SEEK_END)
		962
709	const_iv (MCL_FUTURE)	963	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	964	const_eio (MCL_CURRENT)
711		965
712	const_eio (MS_ASYNC)	966	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	967	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	968	const_eio (MS_SYNC)
715		969
716	const_eio (MT_MODIFY)	970	const_eio (MT_MODIFY)
717		971
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	973	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		975
		976	const_eio (FALLOC_FL_KEEP_SIZE)
721		977
722	const_eio (READDIR_DENTS)	978	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	979	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	980	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	981	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	992	};
737		993
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	994	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	995	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	996	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		997	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
741		998
742	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	999	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));	1000	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1001
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1002	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1003
747	create_respipe ();	1004	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	}	1005	}
755		1006
756	void	1007	void
		1008	reinit ()
		1009	PROTOTYPE:
		1010
		1011	void
757	max_poll_reqs (int nreqs)	1012	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1013	PROTOTYPE: $
759	CODE:	1014	CODE:
760	eio_set_max_poll_reqs (nreqs);	1015	eio_set_max_poll_reqs (nreqs);
761		1016
762	void	1017	void
…		…
764	PROTOTYPE: $	1019	PROTOTYPE: $
765	CODE:	1020	CODE:
766	eio_set_max_poll_time (nseconds);	1021	eio_set_max_poll_time (nseconds);
767		1022
768	void	1023	void
769	min_parallel (int nthreads)	1024	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1025	PROTOTYPE: $
771	CODE:	1026	CODE:
772	eio_set_min_parallel (nthreads);	1027	eio_set_min_parallel (nthreads);
773		1028
774	void	1029	void
775	max_parallel (int nthreads)	1030	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1031	PROTOTYPE: $
777	CODE:	1032	CODE:
778	eio_set_max_parallel (nthreads);	1033	eio_set_max_parallel (nthreads);
779		1034
780	void	1035	void
781	max_idle (int nthreads)	1036	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1037	PROTOTYPE: $
783	CODE:	1038	CODE:
784	eio_set_max_idle (nthreads);	1039	eio_set_max_idle (nthreads);
785		1040
786	void	1041	void
		1042	idle_timeout (unsigned int seconds)
		1043	PROTOTYPE: $
		1044	CODE:
		1045	eio_set_idle_timeout (seconds);
		1046
		1047	void
787	max_outstanding (int maxreqs)	1048	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1049	PROTOTYPE: $
789	CODE:	1050	CODE:
790	max_outstanding = maxreqs;	1051	max_outstanding = maxreqs;
791		1052
792	void	1053	void
		1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1055	PPCODE:
		1056	{
		1057	dREQ;
		1058
		1059	req->type = EIO_WD_OPEN;
		1060	req_set_path1 (req, pathname);
		1061
		1062	REQ_SEND;
		1063	}
		1064
		1065	void
793	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1066	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1067	PPCODE:
796	{	1068	{
797	dREQ;	1069	dREQ;
798		1070
799	req->type = EIO_OPEN;	1071	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1072	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1073	req->int1 = flags;
803	req->int2 = mode;	1074	req->int2 = mode;
804		1075
805	REQ_SEND;	1076	REQ_SEND;
806	}	1077	}
807		1078
808	void	1079	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1081	ALIAS:
812	aio_fsync = EIO_FSYNC	1082	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1083	aio_fdatasync = EIO_FDATASYNC
		1084	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1085	PPCODE:
815	{	1086	{
816	int fd = s_fileno_croak (fh, 0);	1087	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1088	dREQ;
818		1089
819	req->type = ix;	1090	req->type = ix;
820	req->sv1 = newSVsv (fh);	1091	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1092	req->int1 = fd;
822		1093
823	REQ_SEND (req);	1094	REQ_SEND;
824	}	1095	}
825		1096
826	void	1097	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1099	PPCODE:
830	{	1100	{
831	int fd = s_fileno_croak (fh, 0);	1101	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1102	dREQ;
833		1103
…		…
836	req->int1 = fd;	1106	req->int1 = fd;
837	req->offs = offset;	1107	req->offs = offset;
838	req->size = nbytes;	1108	req->size = nbytes;
839	req->int2 = flags;	1109	req->int2 = flags;
840		1110
841	REQ_SEND (req);	1111	REQ_SEND;
842	}	1112	}
843		1113
844	void	1114	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1115	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1116	PPCODE:
848	{	1117	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1119	dREQ;
852		1120
853	if (close_pipe < 0)	1121	req->type = EIO_FALLOCATE;
		1122	req->sv1 = newSVsv (fh);
		1123	req->int1 = fd;
		1124	req->int2 = mode;
		1125	req->offs = offset;
		1126	req->size = len;
		1127
		1128	REQ_SEND;
		1129	}
		1130
		1131	void
		1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1133	PPCODE:
		1134	{
		1135	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1136	int fd = s_fileno_croak (fh, 0);
		1137	dREQ;
		1138
		1139	if (expect_false (close_fd < 0))
854	{	1140	{
855	int pipefd [2];	1141	int pipefd [2];
856		1142
		1143	if (
		1144	#ifdef _WIN32
		1145	_pipe (pipefd, 1, _O_BINARY) < 0
		1146	#else
857	if (pipe (pipefd) < 0	1147	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1148	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1149	#endif
		1150	|| close (pipefd [1]) < 0
		1151	)
860	abort (); /*D*/	1152	abort (); /*D*/
861		1153
862	close_pipe = pipefd [0];	1154	close_fd = pipefd [0];
863	}	1155	}
864		1156
865	req->type = EIO_DUP2;	1157	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1158	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1159	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1160	req->int2 = fd;
869		1161
870	REQ_SEND (req);	1162	REQ_SEND;
		1163	}
		1164
		1165	void
		1166	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1167	PPCODE:
		1168	{
		1169	STRLEN svlen;
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		1173	req->type = EIO_SEEK;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->offs = SvVAL64 (offset);
		1177	req->int2 = whence;
		1178
		1179	REQ_SEND;
871	}	1180	}
872		1181
873	void	1182	void
874	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
875	ALIAS:	1184	ALIAS:
876	aio_read = EIO_READ	1185	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1187	PPCODE:
880	{	1188	{
881	STRLEN svlen;	1189	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
923	REQ_SEND;	1231	REQ_SEND;
924	}	1232	}
925	}	1233	}
926		1234
927	void	1235	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
929	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
930	PPCODE:	1240	PPCODE:
931	{	1241	{
932	SV *data;
933	dREQ;	1242	dREQ;
934		1243
935	req->type = EIO_READLINK;	1244	req->type = ix;
936	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1246
939	REQ_SEND;	1247	REQ_SEND;
940	}	1248	}
941		1249
942	void	1250	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1252	PPCODE:
946	{	1253	{
947	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1256	dREQ;
…		…
959	REQ_SEND;	1266	REQ_SEND;
960	}	1267	}
961		1268
962	void	1269	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1271	PPCODE:
966	{	1272	{
967	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1274	dREQ;
969		1275
…		…
984	aio_statvfs = EIO_STATVFS	1290	aio_statvfs = EIO_STATVFS
985	PPCODE:	1291	PPCODE:
986	{	1292	{
987	dREQ;	1293	dREQ;
988		1294
989	req->sv1 = newSVsv (fh_or_path);	1295	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		1296
1002	REQ_SEND;	1297	REQ_SEND;
1003	}	1298	}
		1299
		1300	UV
		1301	major (UV dev)
		1302	ALIAS:
		1303	minor = 1
		1304	CODE:
		1305	RETVAL = ix ? major (dev) : minor (dev);
		1306	OUTPUT:
		1307	RETVAL
		1308
		1309	UV
		1310	makedev (UV maj, UV min)
		1311	CODE:
		1312	RETVAL = makedev (maj, min);
		1313	OUTPUT:
		1314	RETVAL
1004		1315
1005	void	1316	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1007	PPCODE:	1318	PPCODE:
1008	{	1319	{
1009	dREQ;	1320	dREQ;
1010		1321
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1324	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		1325
1026	REQ_SEND;	1326	REQ_SEND;
1027	}	1327	}
1028		1328
1029	void	1329	void
1030	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1031	PPCODE:	1331	PPCODE:
1032	{	1332	{
1033	dREQ;	1333	dREQ;
1034		1334
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1336	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		1337
1049	REQ_SEND;	1338	REQ_SEND;
1050	}	1339	}
1051		1340
1052	void	1341	void
1053	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1342	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:	1343	PPCODE:
1058	{	1344	{
1059	dREQ;	1345	dREQ;
1060		1346
1061	req->int2 = mode;	1347	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1348	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		1349
1075	REQ_SEND;	1350	REQ_SEND;
1076	}	1351	}
1077		1352
1078	void	1353	void
…		…
1081	{	1356	{
1082	dREQ;	1357	dREQ;
1083		1358
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1361	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		1362
1099	REQ_SEND;	1363	REQ_SEND;
1100	}	1364	}
1101		1365
1102	void	1366	void
…		…
1104	PPCODE:	1368	PPCODE:
1105	{	1369	{
1106	dREQ;	1370	dREQ;
1107		1371
1108	req->type = EIO_READDIR;	1372	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;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1374
1113	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1377
		1378	req_set_path1 (req, pathname);
		1379
1116	REQ_SEND;	1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
		1389	req->type = EIO_MKDIR;
		1390	req->int2 = mode;
		1391	req_set_path1 (req, pathname);
		1392
		1393	REQ_SEND;
1117	}	1394	}
1118		1395
1119	void	1396	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1121	ALIAS:	1398	ALIAS:
…		…
1125	PPCODE:	1402	PPCODE:
1126	{	1403	{
1127	dREQ;	1404	dREQ;
1128		1405
1129	req->type = ix;	1406	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1408
1133	REQ_SEND;	1409	REQ_SEND;
1134	}	1410	}
1135		1411
1136	void	1412	void
…		…
1139	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
1142	PPCODE:	1418	PPCODE:
1143	{	1419	{
		1420	eio_wd wd2 = 0;
1144	dREQ;	1421	dREQ;
1145		1422
1146	req->type = ix;	1423	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1427
1152	REQ_SEND;	1428	REQ_SEND;
1153	}	1429	}
1154		1430
1155	void	1431	void
…		…
1157	PPCODE:	1433	PPCODE:
1158	{	1434	{
1159	dREQ;	1435	dREQ;
1160		1436
1161	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
1166		1441
1167	REQ_SEND;	1442	REQ_SEND;
1168	}	1443	}
1169		1444
1170	void	1445	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172	ALIAS:	1447	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1448	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1449	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1450	PPCODE:
1177	{	1451	{
1178	STRLEN svlen;	1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1454	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);
1181		1455
1182	if (offset < 0)	1456	if (offset < 0)
1183	offset += svlen;	1457	offset += svlen;
1184		1458
1185	if (offset < 0 || offset > svlen)	1459	if (offset < 0 || offset > svlen)
…		…
1190		1464
1191	{	1465	{
1192	dREQ;	1466	dREQ;
1193		1467
1194	req->type = ix;	1468	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1469	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
1198	req->int1 = flags;	1472	req->int1 = flags;
1199		1473
1200	REQ_SEND;	1474	REQ_SEND;
1201	}	1475	}
1202	}	1476	}
1203		1477
1204	void	1478	void
		1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1480	PPCODE:
		1481	{
		1482	STRLEN svlen;
		1483	char *svptr = SvPVbyte (data, svlen);
		1484	UV len = SvUV (length);
		1485
		1486	if (offset < 0)
		1487	offset += svlen;
		1488
		1489	if (offset < 0 || offset > svlen)
		1490	croak ("offset outside of scalar");
		1491
		1492	if (!SvOK (length) || len + offset > svlen)
		1493	len = svlen - offset;
		1494
		1495	{
		1496	dREQ;
		1497
		1498	req->type = EIO_MLOCK;
		1499	req->sv2 = SvREFCNT_inc (data);
		1500	req->ptr2 = (char *)svptr + offset;
		1501	req->size = len;
		1502
		1503	REQ_SEND;
		1504	}
		1505	}
		1506
		1507	void
		1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1509	PPCODE:
		1510	{
		1511	dREQ;
		1512
		1513	req->type = EIO_MLOCKALL;
		1514	req->int1 = flags;
		1515
		1516	REQ_SEND;
		1517	}
		1518
		1519	void
		1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1521	PPCODE:
		1522	{
		1523	int fd = s_fileno_croak (fh, 0);
		1524	dREQ;
		1525
		1526	req->type = EIO_CUSTOM;
		1527	req->sv1 = newSVsv (fh);
		1528	req->int1 = fd;
		1529
		1530	req->feed = fiemap;
		1531	/* keep our fingers crossed that the next two types are 64 bit */
		1532	req->offs = start;
		1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1534	req->int2 = flags;
		1535	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1541	aio_busy (double delay, SV *callback=&PL_sv_undef)
1206	PPCODE:	1542	PPCODE:
1207	{	1543	{
1208	dREQ;	1544	dREQ;
1209		1545
…		…
1213	REQ_SEND;	1549	REQ_SEND;
1214	}	1550	}
1215		1551
1216	void	1552	void
1217	aio_group (SV *callback=&PL_sv_undef)	1553	aio_group (SV *callback=&PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1554	PPCODE:
1220	{	1555	{
1221	dREQ;	1556	dREQ;
1222		1557
1223	req->type = EIO_GROUP;	1558	req->type = EIO_GROUP;
…		…
1240	REQ_SEND;	1575	REQ_SEND;
1241	}	1576	}
1242		1577
1243	int	1578	int
1244	aioreq_pri (int pri = 0)	1579	aioreq_pri (int pri = 0)
1245	PROTOTYPE: ;$
1246	CODE:	1580	CODE:
1247	RETVAL = next_pri;	1581	RETVAL = next_pri;
1248	if (items > 0)	1582	if (items > 0)
1249	{	1583	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1596	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1597	next_pri = nice;
1264		1598
1265	void	1599	void
1266	flush ()	1600	flush ()
1267	PROTOTYPE:
1268	CODE:	1601	CODE:
1269	while (eio_nreqs ())	1602	while (eio_nreqs ())
1270	{	1603	{
1271	poll_wait ();	1604	poll_wait ();
1272	poll_cb ();	1605	poll_cb ();
1273	}	1606	}
1274		1607
1275	int	1608	int
1276	poll()	1609	poll ()
1277	PROTOTYPE:
1278	CODE:	1610	CODE:
1279	poll_wait ();	1611	poll_wait ();
1280	RETVAL = poll_cb ();	1612	RETVAL = poll_cb ();
1281	OUTPUT:	1613	OUTPUT:
1282	RETVAL	1614	RETVAL
1283		1615
1284	int	1616	int
1285	poll_fileno()	1617	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1618	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1619	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1620	OUTPUT:
1290	RETVAL	1621	RETVAL
1291		1622
1292	int	1623	int
1293	poll_cb(...)	1624	poll_cb (...)
1294	PROTOTYPE:	1625	PROTOTYPE:
1295	CODE:	1626	CODE:
1296	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1297	OUTPUT:	1628	OUTPUT:
1298	RETVAL	1629	RETVAL
1299		1630
1300	void	1631	void
1301	poll_wait()	1632	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1633	CODE:
1304	poll_wait ();	1634	poll_wait ();
1305		1635
1306	int	1636	int
1307	nreqs()	1637	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1638	CODE:
1310	RETVAL = eio_nreqs ();	1639	RETVAL = eio_nreqs ();
1311	OUTPUT:	1640	OUTPUT:
1312	RETVAL	1641	RETVAL
1313		1642
1314	int	1643	int
1315	nready()	1644	nready ()
1316	PROTOTYPE:
1317	CODE:	1645	CODE:
1318	RETVAL = eio_nready ();	1646	RETVAL = eio_nready ();
1319	OUTPUT:	1647	OUTPUT:
1320	RETVAL	1648	RETVAL
1321		1649
1322	int	1650	int
1323	npending()	1651	npending ()
1324	PROTOTYPE:
1325	CODE:	1652	CODE:
1326	RETVAL = eio_npending ();	1653	RETVAL = eio_npending ();
1327	OUTPUT:	1654	OUTPUT:
1328	RETVAL	1655	RETVAL
1329		1656
1330	int	1657	int
1331	nthreads()	1658	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1659	CODE:
1334	RETVAL = eio_nthreads ();	1660	RETVAL = eio_nthreads ();
1335	OUTPUT:	1661	OUTPUT:
1336	RETVAL	1662	RETVAL
1337		1663
1338	int	1664	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1665	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	1666	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1667	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1668	OUTPUT:
1348	RETVAL	1669	RETVAL
1349		1670
1350	ssize_t	1671	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1672	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1673	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1675	OUTPUT:
1356	RETVAL	1676	RETVAL
1357		1677
1358	void	1678	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1680	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1681	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1682	{
1364	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1685	if (addr == (void *)-1)
1367	XSRETURN_NO;	1686	XSRETURN_NO;
1368		1687
		1688	sv_force_normal (scalar);
		1689
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1690	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1691	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1692	->mg_obj = (SV *)length;
1372		1693
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1694	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1695
1374	if (!(prot & PROT_WRITE))	1696	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1697	SvREADONLY_on (scalar);
		1698
		1699	if (SvLEN (scalar))
		1700	Safefree (SvPVX (scalar));
1376		1701
1377	SvPVX (scalar) = (char *)addr;	1702	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1703	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1704	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1705	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1707	XSRETURN_YES;
1383	}	1708	}
1384		1709
1385	void	1710	void
1386	munmap (SV *scalar)	1711	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1712	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1713	sv_unmagic (scalar, MMAP_MAGIC);
1390		1714
1391	int	1715	int
1392	mlockall (int flags)	1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1717	ALIAS:
		1718	mprotect = 1
1394	CODE:	1719	CODE:
		1720	{
		1721	STRLEN svlen;
		1722	void *addr = SvPVbyte (scalar, svlen);
		1723	size_t len = SvUV (length);
		1724
		1725	if (offset < 0)
		1726	offset += svlen;
		1727
		1728	if (offset < 0 || offset > svlen)
		1729	croak ("offset outside of scalar");
		1730
		1731	if (!SvOK (length) || len + offset > svlen)
		1732	len = svlen - offset;
		1733
		1734	addr = (void *)(((intptr_t)addr) + offset);
		1735	eio_page_align (&addr, &len);
		1736
		1737	switch (ix)
		1738	{
		1739	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1740	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1741	}
		1742	}
		1743	OUTPUT:
		1744	RETVAL
		1745
		1746	int
		1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1748	CODE:
		1749	{
		1750	STRLEN svlen;
		1751	void *addr = SvPVbyte (scalar, svlen);
		1752	size_t len = SvUV (length);
		1753
		1754	if (offset < 0)
		1755	offset += svlen;
		1756
		1757	if (offset < 0 || offset > svlen)
		1758	croak ("offset outside of scalar");
		1759
		1760	if (!SvOK (length) || len + offset > svlen)
		1761	len = svlen - offset;
		1762
		1763	addr = (void *)(((intptr_t)addr) + offset);
		1764	eio_page_align (&addr, &len);
1395	#if _POSIX_MEMLOCK	1765	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1766	RETVAL = munlock (addr, len);
1397	extern int mallopt (int, int);	1767	#else
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */	1768	RETVAL = ((errno = ENOSYS), -1);
1399	#endif	1769	#endif
1400	mlockall (flags);	1770	}
1401	#else
1402	RETVAL = -1;
1403	errno = ENOSYS;
1404	#endif
1405	OUTPUT:	1771	OUTPUT:
1406	RETVAL	1772	RETVAL
1407		1773
1408	int	1774	int
1409	munlockall ()	1775	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1776	CODE:
1412	#if _POSIX_MEMLOCK	1777	#if _POSIX_MEMLOCK
1413	munlockall ();	1778	munlockall ();
1414	#else	1779	#else
1415	RETVAL = -1;	1780	RETVAL = -1;
…		…
1423	SvREFCNT_dec (on_next_submit);	1788	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		1790
1426	PROTOTYPES: DISABLE	1791	PROTOTYPES: DISABLE
1427		1792
		1793	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1794
		1795	BOOT:
		1796	{
		1797	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1798	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1799	}
		1800
		1801	void
		1802	DESTROY (SV *self)
		1803	CODE:
		1804	{
		1805	aio_wd wd = SvAIO_WD (self);
		1806	#if HAVE_AT
		1807	{
		1808	SV *callback = &PL_sv_undef;
		1809	dREQ; /* clobbers next_pri :/ */
		1810	next_pri = req->pri; /* restore next_pri */
		1811	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1812	req->type = EIO_WD_CLOSE;
		1813	req->wd = wd;
		1814	REQ_SEND;
		1815	}
		1816	#else
		1817	eio_wd_close_sync (wd);
		1818	#endif
		1819	}
		1820
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1821	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		1822
1430	void	1823	void
1431	cancel (aio_req_ornot req)	1824	cancel (aio_req_ornot req)
1432	CODE:	1825	CODE:

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