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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.165 by root, Sun May 9 20:42:55 2010 UTC vs.
Revision 1.211 by root, Sat Apr 7 00:50:33 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
23	#endif	30	#endif
24		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);
128	#endif	124	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		125
145	#ifndef ST_NODEV	126	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		127
176	#ifndef MCL_CURRENT	128	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	130	#endif
179	#ifndef MCL_FUTURE	131
180	# define MCL_FUTURE 0	132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
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	int count = req->int3;
		170
		171	/* heuristic: first try with 64 extents if we don't know how many, */
		172	/* as most files have (hopefully) fewer than this many extents */
		173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		174	if (count < 0)
		175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		176
		177	for (;;)
		178	{
		179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		180	errno = ENOMEM;
		181	if (!fiemap)
		182	return;
		183
		184	req->ptr1 = fiemap;
		185	req->flags |= EIO_FLAG_PTR1_FREE;
		186
		187	fiemap->fm_start = req->offs;
		188	fiemap->fm_length = req->size;
		189	fiemap->fm_flags = req->int2;
		190	fiemap->fm_extent_count = count;
		191
		192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		193	return;
		194
		195	if (req->int3 >= 0)
		196	break; /* when not autosizing we are done */
		197
		198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		199	break; /* autosizing successful, we are done */
		200
		201	fiemap->fm_flags = req->int2;
		202	fiemap->fm_extent_count = 0;
		203
		204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		205	return;
		206
		207	count = fiemap->fm_mapped_extents;
		208
		209	free (fiemap);
		210	}
		211
		212	req->result = 0;
		213
		214	#else
		215	errno = ENOSYS;
		216	#endif
		217	}
		218
		219	/*****************************************************************************/
214		220
215	enum {	221	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	223	};
218		224
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	225	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	226	typedef eio_req *aio_req_ornot;
		227	typedef eio_wd aio_wd;
223		228
224	static SV *on_next_submit;	229	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	230	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	231	static int max_outstanding;
227		232
228	static s_epipe respipe;	233	static s_epipe respipe;
229		234
230	static void req_destroy (aio_req req);	235	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	236	static void req_cancel (aio_req req);
232		237
233	static void want_poll (void)	238	static void
		239	want_poll (void)
234	{	240	{
235	/* write a dummy byte to the pipe so fh becomes ready */	241	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	242	s_epipe_signal (&respipe);
237	}	243	}
238		244
239	static void done_poll (void)	245	static void
		246	done_poll (void)
240	{	247	{
241	/* read any signals sent by the worker threads */	248	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	249	s_epipe_drain (&respipe);
243	}	250	}
244		251
245	/* must be called at most once */	252	/* must be called at most once */
		253	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	254	req_sv (aio_req req, HV *stash)
247	{	255	{
248	if (!req->self)	256	if (!req->self)
249	{	257	{
250	req->self = (SV *)newHV ();	258	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	259	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	260	}
253		261
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	262	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	263	}
256		264
257	static aio_req SvAIO_REQ (SV *sv)	265	static SV *
		266	newSVaio_wd (aio_wd wd)
		267	{
		268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		269	}
		270
		271	static aio_req
		272	SvAIO_REQ (SV *sv)
258	{	273	{
259	MAGIC *mg;	274	MAGIC *mg;
260		275
261	if (!SvROK (sv)	276	if (!SvROK (sv)
		277	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	278	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	279	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	280	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	281	croak ("object of class IO::AIO::REQ expected");
266		282
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	283	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		284
269	return mg ? (aio_req)mg->mg_ptr : 0;	285	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	286	}
271		287
		288	static aio_wd
		289	SvAIO_WD (SV *sv)
		290	{
		291	if (!SvROK (sv)
		292	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		295
		296	return (aio_wd)(long)SvIVX (SvRV (sv));
		297	}
		298
		299	static void
272	static void aio_grp_feed (aio_req grp)	300	aio_grp_feed (aio_req grp)
273	{	301	{
274	if (grp->sv2 && SvOK (grp->sv2))	302	if (grp->sv2 && SvOK (grp->sv2))
275	{	303	{
276	dSP;	304	dSP;
277		305
…		…
285	FREETMPS;	313	FREETMPS;
286	LEAVE;	314	LEAVE;
287	}	315	}
288	}	316	}
289		317
		318	static void
290	static void req_submit (eio_req *req)	319	req_submit (eio_req *req)
291	{	320	{
292	eio_submit (req);	321	eio_submit (req);
293		322
294	if (expect_false (on_next_submit))	323	if (expect_false (on_next_submit))
295	{	324	{
…		…
302	PUTBACK;	331	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	332	call_sv (cb, G_DISCARD | G_EVAL);
304	}	333	}
305	}	334	}
306		335
		336	static int
307	static int req_invoke (eio_req *req)	337	req_invoke (eio_req *req)
308	{	338	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
313		341
314	if (!EIO_CANCELLED (req) && req->callback)	342	if (!EIO_CANCELLED (req) && req->callback)
315	{	343	{
		344	dSP;
316	static SV *sv_result_cache; /* caches the result integer SV */	345	static SV *sv_result_cache; /* caches the result integer SV */
317	SV *sv_result;	346	SV *sv_result;
318		347
319	ENTER;	348	ENTER;
320	SAVETMPS;	349	SAVETMPS;
…		…
324	/* do not recreate the result IV from scratch each time */	353	/* do not recreate the result IV from scratch each time */
325	if (expect_true (sv_result_cache))	354	if (expect_true (sv_result_cache))
326	{	355	{
327	sv_result = sv_result_cache; sv_result_cache = 0;	356	sv_result = sv_result_cache; sv_result_cache = 0;
328	SvIV_set (sv_result, req->result);	357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
329	}	359	}
330	else	360	else
331	{	361	{
332	sv_result = newSViv (req->result);	362	sv_result = newSViv (req->result);
333	SvREADONLY_on (sv_result);	363	SvREADONLY_on (sv_result);
334	}	364	}
335		365
336	switch (req->type)	366	switch (req->type)
337	{	367	{
		368	case EIO_WD_OPEN:
		369	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		370	break;
		371
338	case EIO_READDIR:	372	case EIO_READDIR:
339	{	373	{
340	SV *rv = &PL_sv_undef;	374	SV *rv = &PL_sv_undef;
341		375
342	if (req->result >= 0)	376	if (req->result >= 0)
…		…
430	case EIO_STATVFS:	464	case EIO_STATVFS:
431	case EIO_FSTATVFS:	465	case EIO_FSTATVFS:
432	{	466	{
433	SV *rv = &PL_sv_undef;	467	SV *rv = &PL_sv_undef;
434		468
		469	#ifndef _WIN32
435	if (req->result >= 0)	470	if (req->result >= 0)
436	{	471	{
437	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
438	HV *hv = newHV ();	473	HV *hv = newHV ();
439		474
…		…
449	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	484	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
450	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
451	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
452	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	487	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
453	}	488	}
		489	#endif
454		490
455	PUSHs (rv);	491	PUSHs (rv);
456	}	492	}
457		493
458	break;	494	break;
…		…
474	case EIO_NOP:	510	case EIO_NOP:
475	case EIO_BUSY:	511	case EIO_BUSY:
476	break;	512	break;
477		513
478	case EIO_READLINK:	514	case EIO_READLINK:
		515	case EIO_REALPATH:
479	if (req->result > 0)	516	if (req->result > 0)
480	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
481	break;	518	break;
482		519
483	case EIO_STAT:	520	case EIO_STAT:
484	case EIO_LSTAT:	521	case EIO_LSTAT:
485	case EIO_FSTAT:	522	case EIO_FSTAT:
486	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		524
487	PL_laststatval = req->result;	525	if (!(PL_laststatval = req->result))
		526	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
488	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	527	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		528
489	PUSHs (sv_result);	529	PUSHs (sv_result);
		530	break;
		531
		532	case EIO_SEEK:
		533	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
490	break;	534	break;
491		535
492	case EIO_READ:	536	case EIO_READ:
493	{	537	{
494	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	538	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
497	SvSETMAGIC (req->sv2);	541	SvSETMAGIC (req->sv2);
498	PUSHs (sv_result);	542	PUSHs (sv_result);
499	}	543	}
500	break;	544	break;
501		545
502	case EIO_DUP2:	546	case EIO_CUSTOM:
		547	if (req->feed == fiemap)
		548	{
		549	#if HAVE_FIEMAP
		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	#endif
		581	}
		582	else
		583	PUSHs (sv_result);
		584	break;
		585
		586	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
503	if (req->result > 0)	587	if (req->result > 0)
504	SvIV_set (sv_result, 0);	588	SvIV_set (sv_result, 0);
505	/* FALLTHROUGH */	589	/* FALLTHROUGH */
506		590
507	default:	591	default:
…		…
527	}	611	}
528		612
529	return !!SvTRUE (ERRSV);	613	return !!SvTRUE (ERRSV);
530	}	614	}
531		615
		616	static void
532	static void req_destroy (aio_req req)	617	req_destroy (aio_req req)
533	{	618	{
534	if (req->self)	619	if (req->self)
535	{	620	{
536	sv_unmagic (req->self, PERL_MAGIC_ext);	621	sv_unmagic (req->self, PERL_MAGIC_ext);
537	SvREFCNT_dec (req->self);	622	SvREFCNT_dec (req->self);
538	}	623	}
539		624
540	SvREFCNT_dec (req->sv1);	625	SvREFCNT_dec (req->sv1);
541	SvREFCNT_dec (req->sv2);	626	SvREFCNT_dec (req->sv2);
		627	SvREFCNT_dec (req->sv3);
		628	SvREFCNT_dec (req->sv4);
542	SvREFCNT_dec (req->callback);	629	SvREFCNT_dec (req->callback);
543		630
544	Safefree (req);	631	free (req);
545	}	632	}
546		633
		634	static void
547	static void req_cancel_subs (aio_req grp)	635	req_cancel_subs (aio_req grp)
548	{	636	{
549	aio_req sub;
550
551	if (grp->type != EIO_GROUP)	637	if (grp->type != EIO_GROUP)
552	return;	638	return;
553		639
554	SvREFCNT_dec (grp->sv2);	640	SvREFCNT_dec (grp->sv2);
555	grp->sv2 = 0;	641	grp->sv2 = 0;
556		642
557	eio_grp_cancel (grp);	643	eio_grp_cancel (grp);
558	}	644	}
559		645
560	static void	646	static void ecb_cold
561	create_respipe (void)	647	create_respipe (void)
562	{	648	{
563	if (s_epipe_renew (&respipe))	649	if (s_epipe_renew (&respipe))
564	croak ("IO::AIO: unable to initialize result pipe");	650	croak ("IO::AIO: unable to initialize result pipe");
565	}	651	}
566		652
567	static void poll_wait (void)	653	static void
		654	poll_wait (void)
568	{	655	{
569	while (eio_nreqs ())	656	while (eio_nreqs ())
570	{	657	{
571	int size;	658	int size;
572		659
…		…
581		668
582	s_epipe_wait (&respipe);	669	s_epipe_wait (&respipe);
583	}	670	}
584	}	671	}
585		672
586	static int poll_cb (void)	673	static int
		674	poll_cb (void)
587	{	675	{
588	for (;;)	676	for (;;)
589	{	677	{
590	int res = eio_poll ();	678	int res = eio_poll ();
591		679
…		…
597		685
598	poll_wait ();	686	poll_wait ();
599	}	687	}
600	}	688	}
601		689
602	static void atfork_child (void)	690	static void ecb_cold
		691	reinit (void)
603	{	692	{
604	create_respipe ();	693	create_respipe ();
		694
		695	if (eio_init (want_poll, done_poll) < 0)
		696	croak ("IO::AIO: unable to initialise eio library");
605	}	697	}
606		698
607	/*****************************************************************************/	699	/*****************************************************************************/
608		700
609	#if !_POSIX_MAPPED_FILES	701	#if !_POSIX_MAPPED_FILES
610	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
611	# define munmap(addr,length) (errno = ENOSYS, -1)	703	# define munmap(addr,length) (errno = ENOSYS, -1)
612	#endif	704	#endif
613		705
		706	#if !_POSIX_MEMORY_PROTECTION
		707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		708	# define PROT_NONE 0
		709	# define PROT_WRITE 0
		710	# define MAP_PRIVATE 0
		711	# define MAP_SHARED 0
		712	# define MAP_FIXED 0
		713	#endif
		714
614	#define MMAP_MAGIC PERL_MAGIC_ext	715	#define MMAP_MAGIC PERL_MAGIC_ext
615		716
616	static int	717	static int ecb_cold
617	mmap_free (pTHX_ SV *sv, MAGIC *mg)	718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
618	{	719	{
619	int old_errno = errno;	720	int old_errno = errno;
620	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
621	errno = old_errno;	722	errno = old_errno;
622		723
623	mg->mg_obj = 0; /* just in case */	724	mg->mg_obj = 0; /* just in case */
624		725
625	SvREADONLY_off (sv);	726	SvREADONLY_off (sv);
		727
		728	if (SvPVX (sv) != mg->mg_ptr)
		729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		730
626	SvCUR_set (sv, 0);	731	SvCUR_set (sv, 0);
627	SvLEN_set (sv, 0);
628	SvPVX (sv) = 0;	732	SvPVX (sv) = 0;
629	SvOK_off (sv);	733	SvOK_off (sv);
630		734
631	return 0;	735	return 0;
632	}	736	}
…		…
642	{	746	{
643	SvGETMAGIC (cb_sv);	747	SvGETMAGIC (cb_sv);
644	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	748	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
645	}	749	}
646		750
		751	static aio_req ecb_noinline
		752	dreq (SV *callback)
		753	{
		754	SV *cb_cv;
		755	aio_req req;
		756	int req_pri = next_pri;
		757	next_pri = EIO_PRI_DEFAULT;
		758
		759	cb_cv = get_cb (callback);
		760
		761	req = calloc (sizeof (*req), 1);
		762	if (!req)
		763	croak ("out of memory during eio_req allocation");
		764
		765	req->callback = SvREFCNT_inc (cb_cv);
		766	req->pri = req_pri;
		767
		768	return req;
		769	}
		770
647	#define dREQ \	771	#define dREQ \
648	SV *cb_cv; \	772	aio_req req = dreq (callback); \
649	aio_req req; \
650	int req_pri = next_pri; \
651	next_pri = EIO_PRI_DEFAULT; \
652	\
653	cb_cv = get_cb (callback); \
654	\
655	Newz (0, req, 1, eio_req); \
656	if (!req) \
657	croak ("out of memory during eio_req allocation"); \
658	\
659	req->callback = SvREFCNT_inc (cb_cv); \
660	req->pri = req_pri
661		773
662	#define REQ_SEND \	774	#define REQ_SEND \
663	PUTBACK; \	775	PUTBACK; \
664	req_submit (req); \	776	req_submit (req); \
665	SPAGAIN; \	777	SPAGAIN; \
666	\	778	\
667	if (GIMME_V != G_VOID) \	779	if (GIMME_V != G_VOID) \
668	XPUSHs (req_sv (req, aio_req_stash));	780	XPUSHs (req_sv (req, aio_req_stash));
669		781
		782	ecb_inline void
		783	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		784	{
		785	if (expect_false (SvROK (path)))
		786	{
		787	SV *rv = SvRV (path);
		788	SV *wdob;
		789
		790	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		791	{
		792	path = AvARRAY (rv)[1];
		793	wdob = AvARRAY (rv)[0];
		794
		795	if (SvOK (wdob))
		796	{
		797	*wd = SvAIO_WD (wdob);
		798	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		799	}
		800	else
		801	*wd = EIO_INVALID_WD;
		802	}
		803	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		804	{
		805	*wd = (aio_wd)(long)SvIVX (rv);
		806	*wdsv = SvREFCNT_inc_NN (rv);
		807	*ptr = ".";
		808	return; /* path set to "." */
		809	}
		810	else
		811	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		812	}
		813
		814	*pathsv = newSVsv (path);
		815	*ptr = SvPVbyte_nolen (*pathsv);
		816	}
		817
		818	static void ecb_noinline
		819	req_set_path1 (aio_req req, SV *path)
		820	{
		821	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		822	}
		823
		824	static void ecb_noinline
		825	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		826	{
		827	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		828
		829	switch (SvTYPE (rv))
		830	{
		831	case SVt_PVIO:
		832	case SVt_PVLV:
		833	case SVt_PVGV:
		834	req->type = type_fh;
		835	req->sv1 = newSVsv (fh_or_path);
		836	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		837	break;
		838
		839	default:
		840	req->type = type_path;
		841	req_set_path1 (req, fh_or_path);
		842	break;
		843	}
		844	}
		845
		846	XS(boot_IO__AIO) ecb_cold;
		847
670	MODULE = IO::AIO PACKAGE = IO::AIO	848	MODULE = IO::AIO PACKAGE = IO::AIO
671		849
672	PROTOTYPES: ENABLE	850	PROTOTYPES: ENABLE
673		851
674	BOOT:	852	BOOT:
…		…
678	IV iv;	856	IV iv;
679	} *civ, const_iv[] = {	857	} *civ, const_iv[] = {
680	# define const_niv(name, value) { # name, (IV) value },	858	# define const_niv(name, value) { # name, (IV) value },
681	# define const_iv(name) { # name, (IV) name },	859	# define const_iv(name) { # name, (IV) name },
682	# define const_eio(name) { # name, (IV) EIO_ ## name },	860	# define const_eio(name) { # name, (IV) EIO_ ## name },
		861
		862	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		863
		864	const_iv (ENOSYS)
683	const_iv (EXDEV)	865	const_iv (EXDEV)
684	const_iv (ENOSYS)	866	const_iv (EBADR)
		867
685	const_iv (O_RDONLY)	868	const_iv (O_RDONLY)
686	const_iv (O_WRONLY)	869	const_iv (O_WRONLY)
687	const_iv (O_RDWR)	870	const_iv (O_RDWR)
688	const_iv (O_CREAT)	871	const_iv (O_CREAT)
689	const_iv (O_TRUNC)	872	const_iv (O_TRUNC)
690	const_iv (O_EXCL)	873	const_iv (O_EXCL)
691	const_iv (O_APPEND)	874	const_iv (O_APPEND)
692	#ifndef _WIN32	875
		876	const_iv (O_ASYNC)
		877	const_iv (O_DIRECT)
		878	const_iv (O_NOATIME)
		879
		880	const_iv (O_CLOEXEC)
		881	const_iv (O_NOCTTY)
		882	const_iv (O_NOFOLLOW)
		883	const_iv (O_NONBLOCK)
		884	const_iv (O_EXEC)
		885	const_iv (O_SEARCH)
		886	const_iv (O_DIRECTORY)
		887	const_iv (O_DSYNC)
		888	const_iv (O_RSYNC)
		889	const_iv (O_SYNC)
		890	const_iv (O_TTY_INIT)
		891
693	const_iv (S_IFIFO)	892	const_iv (S_IFIFO)
694	#endif	893	const_iv (S_IFCHR)
		894	const_iv (S_IFBLK)
		895	const_iv (S_IFLNK)
		896	const_iv (S_IFREG)
		897	const_iv (S_IFDIR)
		898	const_iv (S_IFWHT)
		899	const_iv (S_IFSOCK)
		900	const_iv (S_IFMT)
		901
695	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
696	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
697	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
698	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
699	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
700	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		908
		909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
701		914
702	const_iv (ST_RDONLY)	915	const_iv (ST_RDONLY)
703	const_iv (ST_NOSUID)	916	const_iv (ST_NOSUID)
704	const_iv (ST_NODEV)	917	const_iv (ST_NODEV)
705	const_iv (ST_NOEXEC)	918	const_iv (ST_NOEXEC)
…		…
710	const_iv (ST_IMMUTABLE)	923	const_iv (ST_IMMUTABLE)
711	const_iv (ST_NOATIME)	924	const_iv (ST_NOATIME)
712	const_iv (ST_NODIRATIME)	925	const_iv (ST_NODIRATIME)
713	const_iv (ST_RELATIME)	926	const_iv (ST_RELATIME)
714		927
		928	const_iv (PROT_NONE)
715	const_iv (PROT_EXEC)	929	const_iv (PROT_EXEC)
716	const_iv (PROT_NONE)
717	const_iv (PROT_READ)	930	const_iv (PROT_READ)
718	const_iv (PROT_WRITE)	931	const_iv (PROT_WRITE)
719		932
720	/*const_iv (MAP_FIXED)*/	933	/*const_iv (MAP_FIXED)*/
721	const_iv (MAP_PRIVATE)	934	const_iv (MAP_PRIVATE)
…		…
727	const_iv (MAP_LOCKED)	940	const_iv (MAP_LOCKED)
728	const_iv (MAP_NORESERVE)	941	const_iv (MAP_NORESERVE)
729	const_iv (MAP_POPULATE)	942	const_iv (MAP_POPULATE)
730	const_iv (MAP_NONBLOCK)	943	const_iv (MAP_NONBLOCK)
731		944
		945	const_iv (FIEMAP_FLAG_SYNC)
		946	const_iv (FIEMAP_FLAG_XATTR)
		947	const_iv (FIEMAP_FLAGS_COMPAT)
		948	const_iv (FIEMAP_EXTENT_LAST)
		949	const_iv (FIEMAP_EXTENT_UNKNOWN)
		950	const_iv (FIEMAP_EXTENT_DELALLOC)
		951	const_iv (FIEMAP_EXTENT_ENCODED)
		952	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		953	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		954	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		955	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		956	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		957	const_iv (FIEMAP_EXTENT_MERGED)
		958	const_iv (FIEMAP_EXTENT_SHARED)
		959
		960	const_eio (SEEK_SET)
		961	const_eio (SEEK_CUR)
		962	const_eio (SEEK_END)
		963
732	const_iv (MCL_FUTURE)	964	const_eio (MCL_FUTURE)
733	const_iv (MCL_CURRENT)	965	const_eio (MCL_CURRENT)
734		966
735	const_eio (MS_ASYNC)	967	const_eio (MS_ASYNC)
736	const_eio (MS_INVALIDATE)	968	const_eio (MS_INVALIDATE)
737	const_eio (MS_SYNC)	969	const_eio (MS_SYNC)
738		970
739	const_eio (MT_MODIFY)	971	const_eio (MT_MODIFY)
740		972
741	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
742	const_eio (SYNC_FILE_RANGE_WRITE)	974	const_eio (SYNC_FILE_RANGE_WRITE)
743	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		976
		977	const_eio (FALLOC_FL_KEEP_SIZE)
744		978
745	const_eio (READDIR_DENTS)	979	const_eio (READDIR_DENTS)
746	const_eio (READDIR_DIRS_FIRST)	980	const_eio (READDIR_DIRS_FIRST)
747	const_eio (READDIR_STAT_ORDER)	981	const_eio (READDIR_STAT_ORDER)
748	const_eio (READDIR_FOUND_UNKNOWN)	982	const_eio (READDIR_FOUND_UNKNOWN)
…		…
759	};	993	};
760		994
761	aio_stash = gv_stashpv ("IO::AIO" , 1);	995	aio_stash = gv_stashpv ("IO::AIO" , 1);
762	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	996	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
763	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	997	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		998	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
764		999
765	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1000	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
766	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1001	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
767		1002
768	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
769		1004
770	create_respipe ();	1005	reinit ();
771
772	if (eio_init (want_poll, done_poll) < 0)
773	croak ("IO::AIO: unable to initialise eio library");
774
775	/* atfork child called in fifo order, so before eio's handler */
776	X_THREAD_ATFORK (0, 0, atfork_child);
777	}	1006	}
778		1007
779	void	1008	void
		1009	reinit ()
		1010	PROTOTYPE:
		1011
		1012	void
780	max_poll_reqs (int nreqs)	1013	max_poll_reqs (unsigned int nreqs)
781	PROTOTYPE: $	1014	PROTOTYPE: $
782	CODE:	1015	CODE:
783	eio_set_max_poll_reqs (nreqs);	1016	eio_set_max_poll_reqs (nreqs);
784		1017
785	void	1018	void
…		…
787	PROTOTYPE: $	1020	PROTOTYPE: $
788	CODE:	1021	CODE:
789	eio_set_max_poll_time (nseconds);	1022	eio_set_max_poll_time (nseconds);
790		1023
791	void	1024	void
792	min_parallel (int nthreads)	1025	min_parallel (unsigned int nthreads)
793	PROTOTYPE: $	1026	PROTOTYPE: $
794	CODE:	1027	CODE:
795	eio_set_min_parallel (nthreads);	1028	eio_set_min_parallel (nthreads);
796		1029
797	void	1030	void
798	max_parallel (int nthreads)	1031	max_parallel (unsigned int nthreads)
799	PROTOTYPE: $	1032	PROTOTYPE: $
800	CODE:	1033	CODE:
801	eio_set_max_parallel (nthreads);	1034	eio_set_max_parallel (nthreads);
802		1035
803	void	1036	void
804	max_idle (int nthreads)	1037	max_idle (unsigned int nthreads)
805	PROTOTYPE: $	1038	PROTOTYPE: $
806	CODE:	1039	CODE:
807	eio_set_max_idle (nthreads);	1040	eio_set_max_idle (nthreads);
808		1041
809	void	1042	void
		1043	idle_timeout (unsigned int seconds)
		1044	PROTOTYPE: $
		1045	CODE:
		1046	eio_set_idle_timeout (seconds);
		1047
		1048	void
810	max_outstanding (int maxreqs)	1049	max_outstanding (unsigned int maxreqs)
811	PROTOTYPE: $	1050	PROTOTYPE: $
812	CODE:	1051	CODE:
813	max_outstanding = maxreqs;	1052	max_outstanding = maxreqs;
814		1053
815	void	1054	void
		1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1056	PPCODE:
		1057	{
		1058	dREQ;
		1059
		1060	req->type = EIO_WD_OPEN;
		1061	req_set_path1 (req, pathname);
		1062
		1063	REQ_SEND;
		1064	}
		1065
		1066	void
816	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1068	PPCODE:
819	{	1069	{
820	dREQ;	1070	dREQ;
821		1071
822	req->type = EIO_OPEN;	1072	req->type = EIO_OPEN;
823	req->sv1 = newSVsv (pathname);	1073	req_set_path1 (req, pathname);
824	req->ptr1 = SvPVbyte_nolen (req->sv1);
825	req->int1 = flags;	1074	req->int1 = flags;
826	req->int2 = mode;	1075	req->int2 = mode;
827		1076
828	REQ_SEND;	1077	REQ_SEND;
829	}	1078	}
830		1079
831	void	1080	void
832	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
833	PROTOTYPE: $;$
834	ALIAS:	1082	ALIAS:
835	aio_fsync = EIO_FSYNC	1083	aio_fsync = EIO_FSYNC
836	aio_fdatasync = EIO_FDATASYNC	1084	aio_fdatasync = EIO_FDATASYNC
		1085	aio_syncfs = EIO_SYNCFS
837	PPCODE:	1086	PPCODE:
838	{	1087	{
839	int fd = s_fileno_croak (fh, 0);	1088	int fd = s_fileno_croak (fh, 0);
840	dREQ;	1089	dREQ;
841		1090
842	req->type = ix;	1091	req->type = ix;
843	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
844	req->int1 = fd;	1093	req->int1 = fd;
845		1094
846	REQ_SEND (req);	1095	REQ_SEND;
847	}	1096	}
848		1097
849	void	1098	void
850	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
851	PROTOTYPE: $$$$;$
852	PPCODE:	1100	PPCODE:
853	{	1101	{
854	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
855	dREQ;	1103	dREQ;
856		1104
…		…
859	req->int1 = fd;	1107	req->int1 = fd;
860	req->offs = offset;	1108	req->offs = offset;
861	req->size = nbytes;	1109	req->size = nbytes;
862	req->int2 = flags;	1110	req->int2 = flags;
863		1111
864	REQ_SEND (req);	1112	REQ_SEND;
865	}	1113	}
866		1114
867	void	1115	void
868	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
869	PROTOTYPE: $;$
870	PPCODE:	1117	PPCODE:
871	{	1118	{
872	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
873	int fd = s_fileno_croak (fh, 0);	1119	int fd = s_fileno_croak (fh, 0);
874	dREQ;	1120	dREQ;
875		1121
876	if (close_pipe < 0)	1122	req->type = EIO_FALLOCATE;
		1123	req->sv1 = newSVsv (fh);
		1124	req->int1 = fd;
		1125	req->int2 = mode;
		1126	req->offs = offset;
		1127	req->size = len;
		1128
		1129	REQ_SEND;
		1130	}
		1131
		1132	void
		1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1134	PPCODE:
		1135	{
		1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1137	int fd = s_fileno_croak (fh, 0);
		1138	dREQ;
		1139
		1140	if (expect_false (close_fd < 0))
877	{	1141	{
878	int pipefd [2];	1142	int pipefd [2];
879		1143
		1144	if (
		1145	#ifdef _WIN32
		1146	_pipe (pipefd, 1, _O_BINARY) < 0
		1147	#else
880	if (pipe (pipefd) < 0	1148	pipe (pipefd) < 0
881	|| close (pipefd [1]) < 0
882	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1149	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1150	#endif
		1151	|| close (pipefd [1]) < 0
		1152	)
883	abort (); /*D*/	1153	abort (); /*D*/
884		1154
885	close_pipe = pipefd [0];	1155	close_fd = pipefd [0];
886	}	1156	}
887		1157
888	req->type = EIO_DUP2;	1158	req->type = EIO_DUP2;
889	req->int1 = close_pipe;	1159	req->int1 = close_fd;
890	req->sv2 = newSVsv (fh);	1160	req->sv2 = newSVsv (fh);
891	req->int2 = fd;	1161	req->int2 = fd;
892		1162
893	REQ_SEND (req);	1163	REQ_SEND;
		1164	}
		1165
		1166	void
		1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1168	PPCODE:
		1169	{
		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;
894	}	1180	}
895		1181
896	void	1182	void
897	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)
898	ALIAS:	1184	ALIAS:
899	aio_read = EIO_READ	1185	aio_read = EIO_READ
900	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
901	PROTOTYPE: $$$$$;$
902	PPCODE:	1187	PPCODE:
903	{	1188	{
904	STRLEN svlen;	1189	STRLEN svlen;
905	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
906	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
946	REQ_SEND;	1231	REQ_SEND;
947	}	1232	}
948	}	1233	}
949		1234
950	void	1235	void
951	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
952	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
953	PPCODE:	1240	PPCODE:
954	{	1241	{
955	SV *data;
956	dREQ;	1242	dREQ;
957		1243
958	req->type = EIO_READLINK;	1244	req->type = ix;
959	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1246
962	REQ_SEND;	1247	REQ_SEND;
963	}	1248	}
964		1249
965	void	1250	void
966	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)
967	PROTOTYPE: $$$$;$
968	PPCODE:	1252	PPCODE:
969	{	1253	{
970	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
971	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
972	dREQ;	1256	dREQ;
…		…
982	REQ_SEND;	1266	REQ_SEND;
983	}	1267	}
984		1268
985	void	1269	void
986	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
987	PROTOTYPE: $$$;$
988	PPCODE:	1271	PPCODE:
989	{	1272	{
990	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
991	dREQ;	1274	dREQ;
992		1275
…		…
1007	aio_statvfs = EIO_STATVFS	1290	aio_statvfs = EIO_STATVFS
1008	PPCODE:	1291	PPCODE:
1009	{	1292	{
1010	dREQ;	1293	dREQ;
1011		1294
1012	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1013
1014	if (SvPOK (req->sv1))
1015	{
1016	req->type = ix;
1017	req->ptr1 = SvPVbyte_nolen (req->sv1);
1018	}
1019	else
1020	{
1021	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1022	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1023	}
1024		1296
1025	REQ_SEND;	1297	REQ_SEND;
1026	}	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
1027		1315
1028	void	1316	void
1029	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)
1030	PPCODE:	1318	PPCODE:
1031	{	1319	{
1032	dREQ;	1320	dREQ;
1033		1321
1034	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1035	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1036	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1037
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_UTIME;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FUTIME;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1325
1049	REQ_SEND;	1326	REQ_SEND;
1050	}	1327	}
1051		1328
1052	void	1329	void
1053	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)
1054	PPCODE:	1331	PPCODE:
1055	{	1332	{
1056	dREQ;	1333	dREQ;
1057		1334
1058	req->sv1 = newSVsv (fh_or_path);
1059	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1060		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1061	if (SvPOK (req->sv1))
1062	{
1063	req->type = EIO_TRUNCATE;
1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
1065	}
1066	else
1067	{
1068	req->type = EIO_FTRUNCATE;
1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1070	}
1071		1337
1072	REQ_SEND;	1338	REQ_SEND;
1073	}	1339	}
1074		1340
1075	void	1341	void
1076	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)
1077	ALIAS:
1078	aio_chmod = EIO_CHMOD
1079	aio_mkdir = EIO_MKDIR
1080	PPCODE:	1343	PPCODE:
1081	{	1344	{
1082	dREQ;	1345	dREQ;
1083		1346
1084	req->int2 = mode;	1347	req->int2 = mode;
1085	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1086
1087	if (SvPOK (req->sv1))
1088	{
1089	req->type = ix;
1090	req->ptr1 = SvPVbyte_nolen (req->sv1);
1091	}
1092	else
1093	{
1094	req->type = EIO_FCHMOD;
1095	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1096	}
1097		1349
1098	REQ_SEND;	1350	REQ_SEND;
1099	}	1351	}
1100		1352
1101	void	1353	void
…		…
1104	{	1356	{
1105	dREQ;	1357	dREQ;
1106		1358
1107	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1108	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1109	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1110
1111	if (SvPOK (req->sv1))
1112	{
1113	req->type = EIO_CHOWN;
1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
1115	}
1116	else
1117	{
1118	req->type = EIO_FCHOWN;
1119	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1120	}
1121		1362
1122	REQ_SEND;	1363	REQ_SEND;
1123	}	1364	}
1124		1365
1125	void	1366	void
…		…
1127	PPCODE:	1368	PPCODE:
1128	{	1369	{
1129	dREQ;	1370	dREQ;
1130		1371
1131	req->type = EIO_READDIR;	1372	req->type = EIO_READDIR;
1132	req->sv1 = newSVsv (pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1135		1374
1136	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
1137	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
1138		1377
		1378	req_set_path1 (req, pathname);
		1379
1139	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;
1140	}	1394	}
1141		1395
1142	void	1396	void
1143	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1144	ALIAS:	1398	ALIAS:
…		…
1148	PPCODE:	1402	PPCODE:
1149	{	1403	{
1150	dREQ;	1404	dREQ;
1151		1405
1152	req->type = ix;	1406	req->type = ix;
1153	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
1154	req->ptr1 = SvPVbyte_nolen (req->sv1);
1155		1408
1156	REQ_SEND;	1409	REQ_SEND;
1157	}	1410	}
1158		1411
1159	void	1412	void
…		…
1162	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
1163	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
1164	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
1165	PPCODE:	1418	PPCODE:
1166	{	1419	{
		1420	eio_wd wd2 = 0;
1167	dREQ;	1421	dREQ;
1168		1422
1169	req->type = ix;	1423	req->type = ix;
1170	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
1171	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1172	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
1173	req->ptr2 = SvPVbyte_nolen (req->sv2);
1174		1427
1175	REQ_SEND;	1428	REQ_SEND;
1176	}	1429	}
1177		1430
1178	void	1431	void
…		…
1180	PPCODE:	1433	PPCODE:
1181	{	1434	{
1182	dREQ;	1435	dREQ;
1183		1436
1184	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
1185	req->sv1 = newSVsv (pathname);
1186	req->ptr1 = SvPVbyte_nolen (req->sv1);
1187	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
1188	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
1189		1441
1190	REQ_SEND;	1442	REQ_SEND;
1191	}	1443	}
1192		1444
1193	void	1445	void
1194	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)
1195	ALIAS:	1447	ALIAS:
1196	aio_mtouch = EIO_MTOUCH	1448	aio_mtouch = EIO_MTOUCH
1197	aio_msync = EIO_MSYNC	1449	aio_msync = EIO_MSYNC
1198	PROTOTYPE: $$$$;$
1199	PPCODE:	1450	PPCODE:
1200	{	1451	{
1201	STRLEN svlen;	1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
1202	UV len = SvUV (length);	1454	UV len = SvUV (length);
1203	char *svptr = SvPVbyte (data, svlen);
1204		1455
1205	if (offset < 0)	1456	if (offset < 0)
1206	offset += svlen;	1457	offset += svlen;
1207		1458
1208	if (offset < 0 || offset > svlen)	1459	if (offset < 0 || offset > svlen)
…		…
1213		1464
1214	{	1465	{
1215	dREQ;	1466	dREQ;
1216		1467
1217	req->type = ix;	1468	req->type = ix;
1218	req->size = len;
1219	req->sv2 = SvREFCNT_inc (data);	1469	req->sv2 = SvREFCNT_inc (data);
1220	req->ptr2 = (char *)svptr + offset;	1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
1221	req->int1 = flags;	1472	req->int1 = flags;
1222		1473
1223	REQ_SEND;	1474	REQ_SEND;
1224	}	1475	}
1225	}	1476	}
1226		1477
1227	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	#if HAVE_FIEMAP
		1532	/* keep our fingers crossed that the next two types are 64 bit */
		1533	req->offs = start;
		1534	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1535	req->int2 = flags;
		1536	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1537	#endif
		1538
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
1228	aio_busy (double delay, SV *callback=&PL_sv_undef)	1543	aio_busy (double delay, SV *callback=&PL_sv_undef)
1229	PPCODE:	1544	PPCODE:
1230	{	1545	{
1231	dREQ;	1546	dREQ;
1232		1547
…		…
1236	REQ_SEND;	1551	REQ_SEND;
1237	}	1552	}
1238		1553
1239	void	1554	void
1240	aio_group (SV *callback=&PL_sv_undef)	1555	aio_group (SV *callback=&PL_sv_undef)
1241	PROTOTYPE: ;$
1242	PPCODE:	1556	PPCODE:
1243	{	1557	{
1244	dREQ;	1558	dREQ;
1245		1559
1246	req->type = EIO_GROUP;	1560	req->type = EIO_GROUP;
…		…
1263	REQ_SEND;	1577	REQ_SEND;
1264	}	1578	}
1265		1579
1266	int	1580	int
1267	aioreq_pri (int pri = 0)	1581	aioreq_pri (int pri = 0)
1268	PROTOTYPE: ;$
1269	CODE:	1582	CODE:
1270	RETVAL = next_pri;	1583	RETVAL = next_pri;
1271	if (items > 0)	1584	if (items > 0)
1272	{	1585	{
1273	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1285	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1598	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1286	next_pri = nice;	1599	next_pri = nice;
1287		1600
1288	void	1601	void
1289	flush ()	1602	flush ()
1290	PROTOTYPE:
1291	CODE:	1603	CODE:
1292	while (eio_nreqs ())	1604	while (eio_nreqs ())
1293	{	1605	{
1294	poll_wait ();	1606	poll_wait ();
1295	poll_cb ();	1607	poll_cb ();
1296	}	1608	}
1297		1609
1298	int	1610	int
1299	poll()	1611	poll ()
1300	PROTOTYPE:
1301	CODE:	1612	CODE:
1302	poll_wait ();	1613	poll_wait ();
1303	RETVAL = poll_cb ();	1614	RETVAL = poll_cb ();
1304	OUTPUT:	1615	OUTPUT:
1305	RETVAL	1616	RETVAL
1306		1617
1307	int	1618	int
1308	poll_fileno()	1619	poll_fileno ()
1309	PROTOTYPE:
1310	CODE:	1620	CODE:
1311	RETVAL = s_epipe_fd (&respipe);	1621	RETVAL = s_epipe_fd (&respipe);
1312	OUTPUT:	1622	OUTPUT:
1313	RETVAL	1623	RETVAL
1314		1624
1315	int	1625	int
1316	poll_cb(...)	1626	poll_cb (...)
1317	PROTOTYPE:	1627	PROTOTYPE:
1318	CODE:	1628	CODE:
1319	RETVAL = poll_cb ();	1629	RETVAL = poll_cb ();
1320	OUTPUT:	1630	OUTPUT:
1321	RETVAL	1631	RETVAL
1322		1632
1323	void	1633	void
1324	poll_wait()	1634	poll_wait ()
1325	PROTOTYPE:
1326	CODE:	1635	CODE:
1327	poll_wait ();	1636	poll_wait ();
1328		1637
1329	int	1638	int
1330	nreqs()	1639	nreqs ()
1331	PROTOTYPE:
1332	CODE:	1640	CODE:
1333	RETVAL = eio_nreqs ();	1641	RETVAL = eio_nreqs ();
1334	OUTPUT:	1642	OUTPUT:
1335	RETVAL	1643	RETVAL
1336		1644
1337	int	1645	int
1338	nready()	1646	nready ()
1339	PROTOTYPE:
1340	CODE:	1647	CODE:
1341	RETVAL = eio_nready ();	1648	RETVAL = eio_nready ();
1342	OUTPUT:	1649	OUTPUT:
1343	RETVAL	1650	RETVAL
1344		1651
1345	int	1652	int
1346	npending()	1653	npending ()
1347	PROTOTYPE:
1348	CODE:	1654	CODE:
1349	RETVAL = eio_npending ();	1655	RETVAL = eio_npending ();
1350	OUTPUT:	1656	OUTPUT:
1351	RETVAL	1657	RETVAL
1352		1658
1353	int	1659	int
1354	nthreads()	1660	nthreads ()
1355	PROTOTYPE:
1356	CODE:	1661	CODE:
1357	RETVAL = eio_nthreads ();	1662	RETVAL = eio_nthreads ();
1358	OUTPUT:	1663	OUTPUT:
1359	RETVAL	1664	RETVAL
1360		1665
1361	int	1666	int
1362	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1667	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1363	PROTOTYPE: $$$$
1364	CODE:	1668	CODE:
1365	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1366	RETVAL = posix_fadvise (fh, offset, length, advice);	1669	RETVAL = posix_fadvise (fh, offset, length, advice);
1367	#else
1368	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1369	#endif
1370	OUTPUT:	1670	OUTPUT:
1371	RETVAL	1671	RETVAL
1372		1672
1373	ssize_t	1673	IV
1374	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1674	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1375	PROTOTYPE: $$$$
1376	CODE:	1675	CODE:
1377	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1378	OUTPUT:	1677	OUTPUT:
1379	RETVAL	1678	RETVAL
1380		1679
1381	void	1680	void
1382	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1383	PROTOTYPE: $$$$$;$
1384	PPCODE:	1682	PPCODE:
1385	sv_unmagic (scalar, MMAP_MAGIC);	1683	sv_unmagic (scalar, MMAP_MAGIC);
1386	{	1684	{
1387	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1388	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389	if (addr == (void *)-1)	1687	if (addr == (void *)-1)
1390	XSRETURN_NO;	1688	XSRETURN_NO;
1391		1689
		1690	sv_force_normal (scalar);
		1691
1392	/* we store the length in mg_obj, as namlen is I32 :/ */	1692	/* we store the length in mg_obj, as namlen is I32 :/ */
1393	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394	->mg_obj = (SV *)length;	1694	->mg_obj = (SV *)length;
1395		1695
1396	SvUPGRADE (scalar, SVt_PV); /* nop... */	1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1697
1397	if (!(prot & PROT_WRITE))	1698	if (!(prot & PROT_WRITE))
1398	SvREADONLY_on (scalar);	1699	SvREADONLY_on (scalar);
		1700
		1701	if (SvLEN (scalar))
		1702	Safefree (SvPVX (scalar));
1399		1703
1400	SvPVX (scalar) = (char *)addr;	1704	SvPVX (scalar) = (char *)addr;
1401	SvCUR_set (scalar, length);	1705	SvCUR_set (scalar, length);
1402	SvLEN_set (scalar, 0);	1706	SvLEN_set (scalar, 0);
1403	SvPOK_only (scalar);	1707	SvPOK_only (scalar);
…		…
1405	XSRETURN_YES;	1709	XSRETURN_YES;
1406	}	1710	}
1407		1711
1408	void	1712	void
1409	munmap (SV *scalar)	1713	munmap (SV *scalar)
1410	PROTOTYPE: $
1411	CODE:	1714	CODE:
1412	sv_unmagic (scalar, MMAP_MAGIC);	1715	sv_unmagic (scalar, MMAP_MAGIC);
1413		1716
1414	int	1717	int
1415	mlockall (int flags)	1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1416	PROTOTYPE: $	1719	ALIAS:
		1720	mprotect = 1
1417	CODE:	1721	CODE:
		1722	{
		1723	STRLEN svlen;
		1724	void *addr = SvPVbyte (scalar, svlen);
		1725	size_t len = SvUV (length);
		1726
		1727	if (offset < 0)
		1728	offset += svlen;
		1729
		1730	if (offset < 0 || offset > svlen)
		1731	croak ("offset outside of scalar");
		1732
		1733	if (!SvOK (length) || len + offset > svlen)
		1734	len = svlen - offset;
		1735
		1736	addr = (void *)(((intptr_t)addr) + offset);
		1737	eio_page_align (&addr, &len);
		1738
		1739	switch (ix)
		1740	{
		1741	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1742	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1743	}
		1744	}
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int
		1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1750	CODE:
		1751	{
		1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
		1755
		1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
		1763	len = svlen - offset;
		1764
		1765	addr = (void *)(((intptr_t)addr) + offset);
		1766	eio_page_align (&addr, &len);
1418	#if _POSIX_MEMLOCK	1767	#if _POSIX_MEMLOCK_RANGE
1419	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1768	RETVAL = munlock (addr, len);
1420	extern int mallopt (int, int);
1421	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1422	#endif
1423	mlockall (flags);
1424	#else	1769	#else
1425	RETVAL = -1;	1770	RETVAL = ((errno = ENOSYS), -1);
1426	errno = ENOSYS;
1427	#endif	1771	#endif
		1772	}
1428	OUTPUT:	1773	OUTPUT:
1429	RETVAL	1774	RETVAL
1430		1775
1431	int	1776	int
1432	munlockall ()	1777	munlockall ()
1433	PROTOTYPE:
1434	CODE:	1778	CODE:
1435	#if _POSIX_MEMLOCK	1779	#if _POSIX_MEMLOCK
1436	munlockall ();	1780	munlockall ();
1437	#else	1781	#else
1438	RETVAL = -1;	1782	RETVAL = -1;
…		…
1446	SvREFCNT_dec (on_next_submit);	1790	SvREFCNT_dec (on_next_submit);
1447	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1448		1792
1449	PROTOTYPES: DISABLE	1793	PROTOTYPES: DISABLE
1450		1794
		1795	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1796
		1797	BOOT:
		1798	{
		1799	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1800	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1801	}
		1802
		1803	void
		1804	DESTROY (SV *self)
		1805	CODE:
		1806	{
		1807	aio_wd wd = SvAIO_WD (self);
		1808	#if HAVE_AT
		1809	{
		1810	SV *callback = &PL_sv_undef;
		1811	dREQ; /* clobbers next_pri :/ */
		1812	next_pri = req->pri; /* restore next_pri */
		1813	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1814	req->type = EIO_WD_CLOSE;
		1815	req->wd = wd;
		1816	REQ_SEND;
		1817	}
		1818	#else
		1819	eio_wd_close_sync (wd);
		1820	#endif
		1821	}
		1822
1451	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1823	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1452		1824
1453	void	1825	void
1454	cancel (aio_req_ornot req)	1826	cancel (aio_req_ornot req)
1455	CODE:	1827	CODE:

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