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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.176 by root, Thu Dec 2 10:04:47 2010 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
23	#endif	31	#endif
24		32
25	/* perl namespace pollution */	33	/* perl namespace pollution */
26	#undef VERSION	34	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		35
77	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	38	#undef readdir
80	#undef opendir	39	#undef opendir
81	#undef closedir	40	#undef closedir
82		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	79	#else
91	# define VAL64 NV	80
92	# define SvVAL64 SvNV	81	#include <sys/time.h>
93	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
94	#endif	89	#endif
95		90
96	/*****************************************************************************/	91	/*****************************************************************************/
97		92
98	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
108		103
109	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
112		107
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		109
115	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
116	SV *callback; \	111	SV *callback; \
117	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
118	STRLEN stroffset; \	114	STRLEN stroffset; \
119	SV *self;	115	SV *self;
120		116
121	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
122		118
123	#include "libeio/config.h"	119	#include "libeio/config.h"
124	#include "libeio/eio.h"	120	#include "libeio/eio.h"
125		121
126	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
127	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
128	#endif	124	static void req_destroy (eio_req *grp);
129	#ifndef POSIX_FADV_SEQUENTIAL	125	#define EIO_DESTROY(req) req_destroy (req)
130	# define POSIX_FADV_SEQUENTIAL 0	126
131	#endif	127	#include "libeio/eio.c"
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		128
145	#if !HAVE_POSIX_FADVISE	129	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	131	#endif
148		132
149	#ifndef POSIX_MADV_NORMAL
150	# define POSIX_MADV_NORMAL 0
151	#endif
152	#ifndef POSIX_MADV_SEQUENTIAL
153	# define POSIX_MADV_SEQUENTIAL 0
154	#endif
155	#ifndef POSIX_MADV_RANDOM
156	# define POSIX_MADV_RANDOM 0
157	#endif
158	#ifndef POSIX_MADV_WILLNEED
159	# define POSIX_MADV_WILLNEED 0
160	#endif
161	#ifndef POSIX_MADV_DONTNEED
162	# define POSIX_MADV_DONTNEED 0
163	#endif
164
165	#if !HAVE_POSIX_MADVISE	133	#if !HAVE_POSIX_MADVISE
166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167	#endif
168
169	#ifndef PROT_NONE
170	# define PROT_NONE 0
171	#endif
172	#ifndef PROT_READ
173	# define PROT_READ 0
174	#endif
175	#ifndef PROT_WRITE
176	# define PROT_READ 0
177	#endif
178	#ifndef PROT_EXEC
179	# define PROT_EXEC 0
180	#endif
181
182	#ifndef ST_NODEV
183	# define ST_NODEV 0
184	#endif
185	#ifndef ST_NOEXEC
186	# define ST_NOEXEC 0
187	#endif
188	#ifndef ST_SYNCHRONOUS
189	# define ST_SYNCHRONOUS 0
190	#endif
191	#ifndef ST_MANDLOCK
192	# define ST_MANDLOCK 0
193	#endif
194	#ifndef ST_WRITE
195	# define ST_WRITE 0
196	#endif
197	#ifndef ST_APPEND
198	# define ST_APPEND 0
199	#endif
200	#ifndef ST_IMMUTABLE
201	# define ST_IMMUTABLE 0
202	#endif
203	#ifndef ST_NOATIME
204	# define ST_NOATIME 0
205	#endif
206	#ifndef ST_NODIRATIME
207	# define ST_NODIRATIME 0
208	#endif
209	#ifndef ST_RELATIME
210	# define ST_RELATIME 0
211	#endif	135	#endif
212		136
213	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
214	# ifdef MAP_ANON	138	# ifdef MAP_ANON
215	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
216	# else	140	# else
217	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
218	# endif	142	# endif
219	#endif	143	#endif
220	#ifndef MAP_HUGETLB	144
221	# define MAP_HUGETLB 0	145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
222	#endif	150	#endif
223	#ifndef MAP_LOCKED	151	#ifndef major
224	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
225	#endif	153	#endif
226	#ifndef MAP_NORESERVE	154	#ifndef minor
227	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
228	#endif
229	#ifndef MAP_POPULATE
230	# define MAP_POPULATE 0
231	#endif
232	#ifndef MAP_NONBLOCK
233	# define MAP_NONBLOCK 0
234	#endif	156	#endif
235		157
236	#ifndef PAGESIZE	158	#ifndef PAGESIZE
237	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
238	#endif	160	#endif
239		161
240	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
241	#define EIO_FINISH(req) req_invoke (req)	163
242	static void req_destroy (eio_req *grp);	164	static void
243	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (!fiemap->fm_mapped_extents)
		200	break; /* if file has no segments, we are done */
		201
		202	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		203	break; /* autosizing successful, we are done */
		204
		205	fiemap->fm_flags = req->int2;
		206	fiemap->fm_extent_count = 0;
		207
		208	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		209	return;
		210
		211	count = fiemap->fm_mapped_extents;
		212
		213	free (fiemap);
		214	}
		215
		216	req->result = 0;
		217
		218	#else
		219	errno = ENOSYS;
		220	#endif
		221	}
		222
		223	/*****************************************************************************/
244		224
245	enum {	225	enum {
246	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	226	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
247	};	227	};
248		228
249	#include "libeio/eio.c"
250
251	typedef eio_req *aio_req;	229	typedef eio_req *aio_req;
252	typedef eio_req *aio_req_ornot;	230	typedef eio_req *aio_req_ornot;
		231	typedef eio_wd aio_wd;
253		232
254	static SV *on_next_submit;	233	static SV *on_next_submit;
255	static int next_pri = EIO_PRI_DEFAULT;	234	static int next_pri = EIO_PRI_DEFAULT;
256	static int max_outstanding;	235	static int max_outstanding;
257		236
258	static s_epipe respipe;	237	static s_epipe respipe;
259		238
260	static void req_destroy (aio_req req);	239	static void req_destroy (aio_req req);
261	static void req_cancel (aio_req req);	240	static void req_cancel (aio_req req);
262		241
263	static void want_poll (void)	242	static void
		243	want_poll (void)
264	{	244	{
265	/* write a dummy byte to the pipe so fh becomes ready */	245	/* write a dummy byte to the pipe so fh becomes ready */
266	s_epipe_signal (&respipe);	246	s_epipe_signal (&respipe);
267	}	247	}
268		248
269	static void done_poll (void)	249	static void
		250	done_poll (void)
270	{	251	{
271	/* read any signals sent by the worker threads */	252	/* read any signals sent by the worker threads */
272	s_epipe_drain (&respipe);	253	s_epipe_drain (&respipe);
273	}	254	}
274		255
275	/* must be called at most once */	256	/* must be called at most once */
		257	static SV *
276	static SV *req_sv (aio_req req, HV *stash)	258	req_sv (aio_req req, HV *stash)
277	{	259	{
278	if (!req->self)	260	if (!req->self)
279	{	261	{
280	req->self = (SV *)newHV ();	262	req->self = (SV *)newHV ();
281	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	263	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
282	}	264	}
283		265
284	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	266	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
285	}	267	}
286		268
287	static aio_req SvAIO_REQ (SV *sv)	269	static SV *
		270	newSVaio_wd (aio_wd wd)
		271	{
		272	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		273	}
		274
		275	static aio_req
		276	SvAIO_REQ (SV *sv)
288	{	277	{
289	MAGIC *mg;	278	MAGIC *mg;
290		279
291	if (!SvROK (sv)	280	if (!SvROK (sv)
		281	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
292	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	282	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
293	&& SvSTASH (SvRV (sv)) != aio_req_stash	283	&& SvSTASH (SvRV (sv)) != aio_req_stash
294	&& !sv_derived_from (sv, "IO::AIO::REQ")))	284	&& !sv_derived_from (sv, "IO::AIO::REQ")))
295	croak ("object of class IO::AIO::REQ expected");	285	croak ("object of class IO::AIO::REQ expected");
296		286
297	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	287	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
298		288
299	return mg ? (aio_req)mg->mg_ptr : 0;	289	return mg ? (aio_req)mg->mg_ptr : 0;
300	}	290	}
301		291
		292	static aio_wd
		293	SvAIO_WD (SV *sv)
		294	{
		295	if (!SvROK (sv)
		296	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		297	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		298	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		299
		300	return (aio_wd)(long)SvIVX (SvRV (sv));
		301	}
		302
		303	static void
302	static void aio_grp_feed (aio_req grp)	304	aio_grp_feed (aio_req grp)
303	{	305	{
304	if (grp->sv2 && SvOK (grp->sv2))	306	if (grp->sv2 && SvOK (grp->sv2))
305	{	307	{
306	dSP;	308	dSP;
307		309
…		…
315	FREETMPS;	317	FREETMPS;
316	LEAVE;	318	LEAVE;
317	}	319	}
318	}	320	}
319		321
		322	static void
320	static void req_submit (eio_req *req)	323	req_submit (eio_req *req)
321	{	324	{
322	eio_submit (req);	325	eio_submit (req);
323		326
324	if (expect_false (on_next_submit))	327	if (expect_false (on_next_submit))
325	{	328	{
…		…
332	PUTBACK;	335	PUTBACK;
333	call_sv (cb, G_DISCARD | G_EVAL);	336	call_sv (cb, G_DISCARD | G_EVAL);
334	}	337	}
335	}	338	}
336		339
		340	static int
337	static int req_invoke (eio_req *req)	341	req_invoke (eio_req *req)
338	{	342	{
339	if (req->flags & FLAG_SV2_RO_OFF)	343	if (req->flags & FLAG_SV2_RO_OFF)
340	SvREADONLY_off (req->sv2);	344	SvREADONLY_off (req->sv2);
341		345
342	if (!EIO_CANCELLED (req) && req->callback)	346	if (!EIO_CANCELLED (req) && req->callback)
…		…
353	/* do not recreate the result IV from scratch each time */	357	/* do not recreate the result IV from scratch each time */
354	if (expect_true (sv_result_cache))	358	if (expect_true (sv_result_cache))
355	{	359	{
356	sv_result = sv_result_cache; sv_result_cache = 0;	360	sv_result = sv_result_cache; sv_result_cache = 0;
357	SvIV_set (sv_result, req->result);	361	SvIV_set (sv_result, req->result);
		362	SvIOK_only (sv_result);
358	}	363	}
359	else	364	else
360	{	365	{
361	sv_result = newSViv (req->result);	366	sv_result = newSViv (req->result);
362	SvREADONLY_on (sv_result);	367	SvREADONLY_on (sv_result);
363	}	368	}
364		369
365	switch (req->type)	370	switch (req->type)
366	{	371	{
		372	case EIO_WD_OPEN:
		373	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		374	break;
		375
367	case EIO_READDIR:	376	case EIO_READDIR:
368	{	377	{
369	SV *rv = &PL_sv_undef;	378	SV *rv = &PL_sv_undef;
370		379
371	if (req->result >= 0)	380	if (req->result >= 0)
…		…
459	case EIO_STATVFS:	468	case EIO_STATVFS:
460	case EIO_FSTATVFS:	469	case EIO_FSTATVFS:
461	{	470	{
462	SV *rv = &PL_sv_undef;	471	SV *rv = &PL_sv_undef;
463		472
		473	#ifndef _WIN32
464	if (req->result >= 0)	474	if (req->result >= 0)
465	{	475	{
466	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	476	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
467	HV *hv = newHV ();	477	HV *hv = newHV ();
468		478
…		…
478	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	488	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
479	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	489	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
480	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	490	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
481	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	491	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
482	}	492	}
		493	#endif
483		494
484	PUSHs (rv);	495	PUSHs (rv);
485	}	496	}
486		497
487	break;	498	break;
…		…
503	case EIO_NOP:	514	case EIO_NOP:
504	case EIO_BUSY:	515	case EIO_BUSY:
505	break;	516	break;
506		517
507	case EIO_READLINK:	518	case EIO_READLINK:
		519	case EIO_REALPATH:
508	if (req->result > 0)	520	if (req->result > 0)
509	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	521	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
510	break;	522	break;
511		523
512	case EIO_STAT:	524	case EIO_STAT:
513	case EIO_LSTAT:	525	case EIO_LSTAT:
514	case EIO_FSTAT:	526	case EIO_FSTAT:
515	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	527	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		528
516	PL_laststatval = req->result;	529	if (!(PL_laststatval = req->result))
		530	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
517	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	531	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		532
518	PUSHs (sv_result);	533	PUSHs (sv_result);
		534	break;
		535
		536	case EIO_SEEK:
		537	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
519	break;	538	break;
520		539
521	case EIO_READ:	540	case EIO_READ:
522	{	541	{
523	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	542	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
526	SvSETMAGIC (req->sv2);	545	SvSETMAGIC (req->sv2);
527	PUSHs (sv_result);	546	PUSHs (sv_result);
528	}	547	}
529	break;	548	break;
530		549
		550	case EIO_CUSTOM:
		551	if (req->feed == fiemap)
		552	{
		553	#if HAVE_FIEMAP
		554	if (!req->result)
		555	{
		556	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		557
		558	if (fiemap->fm_extent_count)
		559	{
		560	AV *av = newAV ();
		561	int i;
		562
		563	while (fiemap->fm_mapped_extents)
		564	{
		565	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		566	AV *ext_av = newAV ();
		567
		568	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		569	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		570	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		571	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		572
		573	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		574	}
		575
		576	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		577	}
		578	else
		579	{
		580	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		581	PUSHs (sv_result);
		582	}
		583	}
		584	#endif
		585	}
		586	else
		587	PUSHs (sv_result);
		588	break;
		589
531	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	590	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
532	if (req->result > 0)	591	if (req->result > 0)
533	SvIV_set (sv_result, 0);	592	SvIV_set (sv_result, 0);
534	/* FALLTHROUGH */	593	/* FALLTHROUGH */
535		594
536	default:	595	default:
…		…
556	}	615	}
557		616
558	return !!SvTRUE (ERRSV);	617	return !!SvTRUE (ERRSV);
559	}	618	}
560		619
		620	static void
561	static void req_destroy (aio_req req)	621	req_destroy (aio_req req)
562	{	622	{
563	if (req->self)	623	if (req->self)
564	{	624	{
565	sv_unmagic (req->self, PERL_MAGIC_ext);	625	sv_unmagic (req->self, PERL_MAGIC_ext);
566	SvREFCNT_dec (req->self);	626	SvREFCNT_dec (req->self);
567	}	627	}
568		628
569	SvREFCNT_dec (req->sv1);	629	SvREFCNT_dec (req->sv1);
570	SvREFCNT_dec (req->sv2);	630	SvREFCNT_dec (req->sv2);
		631	SvREFCNT_dec (req->sv3);
		632	SvREFCNT_dec (req->sv4);
571	SvREFCNT_dec (req->callback);	633	SvREFCNT_dec (req->callback);
572		634
573	Safefree (req);	635	free (req);
574	}	636	}
575		637
		638	static void
576	static void req_cancel_subs (aio_req grp)	639	req_cancel_subs (aio_req grp)
577	{	640	{
578	aio_req sub;
579
580	if (grp->type != EIO_GROUP)	641	if (grp->type != EIO_GROUP)
581	return;	642	return;
582		643
583	SvREFCNT_dec (grp->sv2);	644	SvREFCNT_dec (grp->sv2);
584	grp->sv2 = 0;	645	grp->sv2 = 0;
585		646
586	eio_grp_cancel (grp);	647	eio_grp_cancel (grp);
587	}	648	}
588		649
589	static void	650	static void ecb_cold
590	create_respipe (void)	651	create_respipe (void)
591	{	652	{
592	if (s_epipe_renew (&respipe))	653	if (s_epipe_renew (&respipe))
593	croak ("IO::AIO: unable to initialize result pipe");	654	croak ("IO::AIO: unable to initialize result pipe");
594	}	655	}
595		656
596	static void poll_wait (void)	657	static void
		658	poll_wait (void)
597	{	659	{
598	while (eio_nreqs ())	660	while (eio_nreqs ())
599	{	661	{
600	int size;	662	int size;
601		663
…		…
610		672
611	s_epipe_wait (&respipe);	673	s_epipe_wait (&respipe);
612	}	674	}
613	}	675	}
614		676
615	static int poll_cb (void)	677	static int
		678	poll_cb (void)
616	{	679	{
617	for (;;)	680	for (;;)
618	{	681	{
619	int res = eio_poll ();	682	int res = eio_poll ();
620		683
…		…
626		689
627	poll_wait ();	690	poll_wait ();
628	}	691	}
629	}	692	}
630		693
631	static void atfork_child (void)	694	static void ecb_cold
		695	reinit (void)
632	{	696	{
633	create_respipe ();	697	create_respipe ();
		698
		699	if (eio_init (want_poll, done_poll) < 0)
		700	croak ("IO::AIO: unable to initialise eio library");
634	}	701	}
635		702
636	/*****************************************************************************/	703	/*****************************************************************************/
637		704
638	#if !_POSIX_MAPPED_FILES	705	#if !_POSIX_MAPPED_FILES
639	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	706	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
640	# define munmap(addr,length) (errno = ENOSYS, -1)	707	# define munmap(addr,length) EIO_ENOSYS ()
		708	#endif
		709
		710	#if !_POSIX_MEMORY_PROTECTION
641	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	711	# define mprotect(addr,len,prot) EIO_ENOSYS ()
642	# define PROT_NONE 0	712	# define PROT_NONE 0
643	# define PROT_WRITE 0	713	# define PROT_WRITE 0
644	# define MAP_PRIVATE 0	714	# define MAP_PRIVATE 0
645	# define MAP_SHARED 0	715	# define MAP_SHARED 0
646	# define MAP_FIXED 0	716	# define MAP_FIXED 0
647	#endif	717	#endif
648		718
649	#define MMAP_MAGIC PERL_MAGIC_ext	719	#define MMAP_MAGIC PERL_MAGIC_ext
650		720
651	static int	721	static int ecb_cold
652	mmap_free (pTHX_ SV *sv, MAGIC *mg)	722	mmap_free (pTHX_ SV *sv, MAGIC *mg)
653	{	723	{
654	int old_errno = errno;	724	int old_errno = errno;
655	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	725	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
656	errno = old_errno;	726	errno = old_errno;
…		…
680	{	750	{
681	SvGETMAGIC (cb_sv);	751	SvGETMAGIC (cb_sv);
682	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	752	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
683	}	753	}
684		754
		755	static aio_req ecb_noinline
		756	dreq (SV *callback)
		757	{
		758	SV *cb_cv;
		759	aio_req req;
		760	int req_pri = next_pri;
		761	next_pri = EIO_PRI_DEFAULT;
		762
		763	cb_cv = get_cb (callback);
		764
		765	req = calloc (sizeof (*req), 1);
		766	if (!req)
		767	croak ("out of memory during eio_req allocation");
		768
		769	req->callback = SvREFCNT_inc (cb_cv);
		770	req->pri = req_pri;
		771
		772	return req;
		773	}
		774
685	#define dREQ \	775	#define dREQ \
686	SV *cb_cv; \	776	aio_req req = dreq (callback); \
687	aio_req req; \
688	int req_pri = next_pri; \
689	next_pri = EIO_PRI_DEFAULT; \
690	\
691	cb_cv = get_cb (callback); \
692	\
693	Newz (0, req, 1, eio_req); \
694	if (!req) \
695	croak ("out of memory during eio_req allocation"); \
696	\
697	req->callback = SvREFCNT_inc (cb_cv); \
698	req->pri = req_pri
699		777
700	#define REQ_SEND \	778	#define REQ_SEND \
701	PUTBACK; \	779	PUTBACK; \
702	req_submit (req); \	780	req_submit (req); \
703	SPAGAIN; \	781	SPAGAIN; \
704	\	782	\
705	if (GIMME_V != G_VOID) \	783	if (GIMME_V != G_VOID) \
706	XPUSHs (req_sv (req, aio_req_stash));	784	XPUSHs (req_sv (req, aio_req_stash));
707		785
		786	ecb_inline void
		787	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		788	{
		789	if (expect_false (SvROK (path)))
		790	{
		791	SV *rv = SvRV (path);
		792	SV *wdob;
		793
		794	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		795	{
		796	path = AvARRAY (rv)[1];
		797	wdob = AvARRAY (rv)[0];
		798
		799	if (SvOK (wdob))
		800	{
		801	*wd = SvAIO_WD (wdob);
		802	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		803	}
		804	else
		805	*wd = EIO_INVALID_WD;
		806	}
		807	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		808	{
		809	*wd = (aio_wd)(long)SvIVX (rv);
		810	*wdsv = SvREFCNT_inc_NN (rv);
		811	*ptr = ".";
		812	return; /* path set to "." */
		813	}
		814	else
		815	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		816	}
		817
		818	*pathsv = newSVsv (path);
		819	*ptr = SvPVbyte_nolen (*pathsv);
		820	}
		821
		822	static void ecb_noinline
		823	req_set_path1 (aio_req req, SV *path)
		824	{
		825	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		826	}
		827
		828	static void ecb_noinline
		829	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		830	{
		831	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		832
		833	switch (SvTYPE (rv))
		834	{
		835	case SVt_PVIO:
		836	case SVt_PVLV:
		837	case SVt_PVGV:
		838	req->type = type_fh;
		839	req->sv1 = newSVsv (fh_or_path);
		840	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		841	break;
		842
		843	default:
		844	req->type = type_path;
		845	req_set_path1 (req, fh_or_path);
		846	break;
		847	}
		848	}
		849
		850	XS(boot_IO__AIO) ecb_cold;
		851
708	MODULE = IO::AIO PACKAGE = IO::AIO	852	MODULE = IO::AIO PACKAGE = IO::AIO
709		853
710	PROTOTYPES: ENABLE	854	PROTOTYPES: ENABLE
711		855
712	BOOT:	856	BOOT:
…		…
716	IV iv;	860	IV iv;
717	} *civ, const_iv[] = {	861	} *civ, const_iv[] = {
718	# define const_niv(name, value) { # name, (IV) value },	862	# define const_niv(name, value) { # name, (IV) value },
719	# define const_iv(name) { # name, (IV) name },	863	# define const_iv(name) { # name, (IV) name },
720	# define const_eio(name) { # name, (IV) EIO_ ## name },	864	# define const_eio(name) { # name, (IV) EIO_ ## name },
		865
		866	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		867
		868	const_iv (ENOSYS)
721	const_iv (EXDEV)	869	const_iv (EXDEV)
722	const_iv (ENOSYS)	870	const_iv (EBADR)
		871
723	const_iv (O_RDONLY)	872	const_iv (O_RDONLY)
724	const_iv (O_WRONLY)	873	const_iv (O_WRONLY)
725	const_iv (O_RDWR)	874	const_iv (O_RDWR)
726	const_iv (O_CREAT)	875	const_iv (O_CREAT)
727	const_iv (O_TRUNC)	876	const_iv (O_TRUNC)
728	const_iv (O_EXCL)	877	const_iv (O_EXCL)
729	const_iv (O_APPEND)	878	const_iv (O_APPEND)
730	#ifndef _WIN32	879
		880	const_iv (O_ASYNC)
		881	const_iv (O_DIRECT)
		882	const_iv (O_NOATIME)
		883
		884	const_iv (O_CLOEXEC)
		885	const_iv (O_NOCTTY)
		886	const_iv (O_NOFOLLOW)
		887	const_iv (O_NONBLOCK)
		888	const_iv (O_EXEC)
		889	const_iv (O_SEARCH)
		890	const_iv (O_DIRECTORY)
		891	const_iv (O_DSYNC)
		892	const_iv (O_RSYNC)
		893	const_iv (O_SYNC)
		894	const_iv (O_TTY_INIT)
		895
731	const_iv (S_IFIFO)	896	const_iv (S_IFIFO)
732	#endif	897	const_iv (S_IFCHR)
		898	const_iv (S_IFBLK)
		899	const_iv (S_IFLNK)
		900	const_iv (S_IFREG)
		901	const_iv (S_IFDIR)
		902	const_iv (S_IFWHT)
		903	const_iv (S_IFSOCK)
		904	const_iv (S_IFMT)
		905
733	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	906	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
734	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	907	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
735	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	908	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
736	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	909	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
737	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	910	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
771	const_iv (MAP_LOCKED)	944	const_iv (MAP_LOCKED)
772	const_iv (MAP_NORESERVE)	945	const_iv (MAP_NORESERVE)
773	const_iv (MAP_POPULATE)	946	const_iv (MAP_POPULATE)
774	const_iv (MAP_NONBLOCK)	947	const_iv (MAP_NONBLOCK)
775		948
		949	const_iv (FIEMAP_FLAG_SYNC)
		950	const_iv (FIEMAP_FLAG_XATTR)
		951	const_iv (FIEMAP_FLAGS_COMPAT)
		952	const_iv (FIEMAP_EXTENT_LAST)
		953	const_iv (FIEMAP_EXTENT_UNKNOWN)
		954	const_iv (FIEMAP_EXTENT_DELALLOC)
		955	const_iv (FIEMAP_EXTENT_ENCODED)
		956	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		957	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		958	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		959	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		960	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		961	const_iv (FIEMAP_EXTENT_MERGED)
		962	const_iv (FIEMAP_EXTENT_SHARED)
		963
		964	const_iv (SPLICE_F_MOVE)
		965	const_iv (SPLICE_F_NONBLOCK)
		966	const_iv (SPLICE_F_MORE)
		967	const_iv (SPLICE_F_GIFT)
		968
		969	const_iv (SEEK_DATA)
		970	const_iv (SEEK_HOLE)
		971
		972	/* libeio constants */
		973	const_eio (SEEK_SET)
		974	const_eio (SEEK_CUR)
		975	const_eio (SEEK_END)
		976
776	const_eio (MCL_FUTURE)	977	const_eio (MCL_FUTURE)
777	const_eio (MCL_CURRENT)	978	const_eio (MCL_CURRENT)
778		979
779	const_eio (MS_ASYNC)	980	const_eio (MS_ASYNC)
780	const_eio (MS_INVALIDATE)	981	const_eio (MS_INVALIDATE)
…		…
783	const_eio (MT_MODIFY)	984	const_eio (MT_MODIFY)
784		985
785	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	986	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
786	const_eio (SYNC_FILE_RANGE_WRITE)	987	const_eio (SYNC_FILE_RANGE_WRITE)
787	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	988	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		989
		990	const_eio (FALLOC_FL_KEEP_SIZE)
		991	const_eio (FALLOC_FL_PUNCH_HOLE)
788		992
789	const_eio (READDIR_DENTS)	993	const_eio (READDIR_DENTS)
790	const_eio (READDIR_DIRS_FIRST)	994	const_eio (READDIR_DIRS_FIRST)
791	const_eio (READDIR_STAT_ORDER)	995	const_eio (READDIR_STAT_ORDER)
792	const_eio (READDIR_FOUND_UNKNOWN)	996	const_eio (READDIR_FOUND_UNKNOWN)
…		…
803	};	1007	};
804		1008
805	aio_stash = gv_stashpv ("IO::AIO" , 1);	1009	aio_stash = gv_stashpv ("IO::AIO" , 1);
806	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1010	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
807	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1011	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1012	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
808		1013
809	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1014	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
810	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1015	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
811		1016
812	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1017	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
813		1018
814	create_respipe ();	1019	reinit ();
815
816	if (eio_init (want_poll, done_poll) < 0)
817	croak ("IO::AIO: unable to initialise eio library");
818
819	/* atfork child called in fifo order, so before eio's handler */
820	X_THREAD_ATFORK (0, 0, atfork_child);
821	}	1020	}
822		1021
823	void	1022	void
		1023	reinit ()
		1024	PROTOTYPE:
		1025
		1026	void
824	max_poll_reqs (int nreqs)	1027	max_poll_reqs (unsigned int nreqs)
825	PROTOTYPE: $	1028	PROTOTYPE: $
826	CODE:	1029	CODE:
827	eio_set_max_poll_reqs (nreqs);	1030	eio_set_max_poll_reqs (nreqs);
828		1031
829	void	1032	void
…		…
831	PROTOTYPE: $	1034	PROTOTYPE: $
832	CODE:	1035	CODE:
833	eio_set_max_poll_time (nseconds);	1036	eio_set_max_poll_time (nseconds);
834		1037
835	void	1038	void
836	min_parallel (int nthreads)	1039	min_parallel (unsigned int nthreads)
837	PROTOTYPE: $	1040	PROTOTYPE: $
838	CODE:	1041	CODE:
839	eio_set_min_parallel (nthreads);	1042	eio_set_min_parallel (nthreads);
840		1043
841	void	1044	void
842	max_parallel (int nthreads)	1045	max_parallel (unsigned int nthreads)
843	PROTOTYPE: $	1046	PROTOTYPE: $
844	CODE:	1047	CODE:
845	eio_set_max_parallel (nthreads);	1048	eio_set_max_parallel (nthreads);
846		1049
847	void	1050	void
848	max_idle (int nthreads)	1051	max_idle (unsigned int nthreads)
849	PROTOTYPE: $	1052	PROTOTYPE: $
850	CODE:	1053	CODE:
851	eio_set_max_idle (nthreads);	1054	eio_set_max_idle (nthreads);
852		1055
853	void	1056	void
		1057	idle_timeout (unsigned int seconds)
		1058	PROTOTYPE: $
		1059	CODE:
		1060	eio_set_idle_timeout (seconds);
		1061
		1062	void
854	max_outstanding (int maxreqs)	1063	max_outstanding (unsigned int maxreqs)
855	PROTOTYPE: $	1064	PROTOTYPE: $
856	CODE:	1065	CODE:
857	max_outstanding = maxreqs;	1066	max_outstanding = maxreqs;
858		1067
859	void	1068	void
		1069	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1070	PPCODE:
		1071	{
		1072	dREQ;
		1073
		1074	req->type = EIO_WD_OPEN;
		1075	req_set_path1 (req, pathname);
		1076
		1077	REQ_SEND;
		1078	}
		1079
		1080	void
860	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1081	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
861	PPCODE:	1082	PPCODE:
862	{	1083	{
863	dREQ;	1084	dREQ;
864		1085
865	req->type = EIO_OPEN;	1086	req->type = EIO_OPEN;
866	req->sv1 = newSVsv (pathname);	1087	req_set_path1 (req, pathname);
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	req->int1 = flags;	1088	req->int1 = flags;
869	req->int2 = mode;	1089	req->int2 = mode;
870		1090
871	REQ_SEND;	1091	REQ_SEND;
872	}	1092	}
…		…
874	void	1094	void
875	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1095	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
876	ALIAS:	1096	ALIAS:
877	aio_fsync = EIO_FSYNC	1097	aio_fsync = EIO_FSYNC
878	aio_fdatasync = EIO_FDATASYNC	1098	aio_fdatasync = EIO_FDATASYNC
		1099	aio_syncfs = EIO_SYNCFS
879	PPCODE:	1100	PPCODE:
880	{	1101	{
881	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
882	dREQ;	1103	dREQ;
883		1104
884	req->type = ix;	1105	req->type = ix;
885	req->sv1 = newSVsv (fh);	1106	req->sv1 = newSVsv (fh);
886	req->int1 = fd;	1107	req->int1 = fd;
887		1108
888	REQ_SEND (req);	1109	REQ_SEND;
889	}	1110	}
890		1111
891	void	1112	void
892	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1113	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
893	PPCODE:	1114	PPCODE:
…		…
900	req->int1 = fd;	1121	req->int1 = fd;
901	req->offs = offset;	1122	req->offs = offset;
902	req->size = nbytes;	1123	req->size = nbytes;
903	req->int2 = flags;	1124	req->int2 = flags;
904		1125
905	REQ_SEND (req);	1126	REQ_SEND;
		1127	}
		1128
		1129	void
		1130	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1131	PPCODE:
		1132	{
		1133	int fd = s_fileno_croak (fh, 0);
		1134	dREQ;
		1135
		1136	req->type = EIO_FALLOCATE;
		1137	req->sv1 = newSVsv (fh);
		1138	req->int1 = fd;
		1139	req->int2 = mode;
		1140	req->offs = offset;
		1141	req->size = len;
		1142
		1143	REQ_SEND;
906	}	1144	}
907		1145
908	void	1146	void
909	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1147	aio_close (SV *fh, SV *callback=&PL_sv_undef)
910	PPCODE:	1148	PPCODE:
911	{	1149	{
912	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1150	static int close_fd = -1; /* dummy fd to close fds via dup2 */
913	int fd = s_fileno_croak (fh, 0);	1151	int fd = s_fileno_croak (fh, 0);
914	dREQ;	1152	dREQ;
915		1153
916	if (close_pipe < 0)	1154	if (expect_false (close_fd < 0))
917	{	1155	{
918	int pipefd [2];	1156	int pipefd [2];
919		1157
		1158	if (
		1159	#ifdef _WIN32
		1160	_pipe (pipefd, 1, _O_BINARY) < 0
		1161	#else
920	if (pipe (pipefd) < 0	1162	pipe (pipefd) < 0
921	|| close (pipefd [1]) < 0
922	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1163	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1164	#endif
		1165	|| close (pipefd [1]) < 0
		1166	)
923	abort (); /*D*/	1167	abort (); /*D*/
924		1168
925	close_pipe = pipefd [0];	1169	close_fd = pipefd [0];
926	}	1170	}
927		1171
928	req->type = EIO_DUP2;	1172	req->type = EIO_DUP2;
929	req->int1 = close_pipe;	1173	req->int1 = close_fd;
930	req->sv2 = newSVsv (fh);	1174	req->sv2 = newSVsv (fh);
931	req->int2 = fd;	1175	req->int2 = fd;
932		1176
933	REQ_SEND (req);	1177	REQ_SEND;
		1178	}
		1179
		1180	void
		1181	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1182	PPCODE:
		1183	{
		1184	int fd = s_fileno_croak (fh, 0);
		1185	dREQ;
		1186
		1187	req->type = EIO_SEEK;
		1188	req->sv1 = newSVsv (fh);
		1189	req->int1 = fd;
		1190	req->offs = SvVAL64 (offset);
		1191	req->int2 = whence;
		1192
		1193	REQ_SEND;
934	}	1194	}
935		1195
936	void	1196	void
937	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
938	ALIAS:	1198	ALIAS:
…		…
959	}	1219	}
960	else	1220	else
961	{	1221	{
962	/* read: check type and grow scalar as necessary */	1222	/* read: check type and grow scalar as necessary */
963	SvUPGRADE (data, SVt_PV);	1223	SvUPGRADE (data, SVt_PV);
		1224	if (SvLEN (data) >= SvCUR (data))
964	svptr = SvGROW (data, len + dataoffset + 1);	1225	svptr = SvGROW (data, len + dataoffset + 1);
		1226	else if (SvCUR (data) < len + dataoffset)
		1227	croak ("length + dataoffset outside of scalar, and cannot grow");
965	}	1228	}
966		1229
967	{	1230	{
968	dREQ;	1231	dREQ;
969		1232
…		…
985	REQ_SEND;	1248	REQ_SEND;
986	}	1249	}
987	}	1250	}
988		1251
989	void	1252	void
990	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1253	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
		1254	ALIAS:
		1255	aio_readlink = EIO_READLINK
		1256	aio_realpath = EIO_REALPATH
991	PPCODE:	1257	PPCODE:
992	{	1258	{
993	SV *data;
994	dREQ;	1259	dREQ;
995		1260
996	req->type = EIO_READLINK;	1261	req->type = ix;
997	req->sv1 = newSVsv (path);	1262	req_set_path1 (req, pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999		1263
1000	REQ_SEND;	1264	REQ_SEND;
1001	}	1265	}
1002		1266
1003	void	1267	void
…		…
1043	aio_statvfs = EIO_STATVFS	1307	aio_statvfs = EIO_STATVFS
1044	PPCODE:	1308	PPCODE:
1045	{	1309	{
1046	dREQ;	1310	dREQ;
1047		1311
1048	req->sv1 = newSVsv (fh_or_path);	1312	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1049
1050	if (SvPOK (req->sv1))
1051	{
1052	req->type = ix;
1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
1054	}
1055	else
1056	{
1057	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1058	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1059	}
1060		1313
1061	REQ_SEND;	1314	REQ_SEND;
1062	}	1315	}
		1316
		1317	UV
		1318	major (UV dev)
		1319	ALIAS:
		1320	minor = 1
		1321	CODE:
		1322	RETVAL = ix ? major (dev) : minor (dev);
		1323	OUTPUT:
		1324	RETVAL
		1325
		1326	UV
		1327	makedev (UV maj, UV min)
		1328	CODE:
		1329	RETVAL = makedev (maj, min);
		1330	OUTPUT:
		1331	RETVAL
1063		1332
1064	void	1333	void
1065	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1334	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1066	PPCODE:	1335	PPCODE:
1067	{	1336	{
1068	dREQ;	1337	dREQ;
1069		1338
1070	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1339	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1071	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1340	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1072	req->sv1 = newSVsv (fh_or_path);	1341	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1073
1074	if (SvPOK (req->sv1))
1075	{
1076	req->type = EIO_UTIME;
1077	req->ptr1 = SvPVbyte_nolen (req->sv1);
1078	}
1079	else
1080	{
1081	req->type = EIO_FUTIME;
1082	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1083	}
1084		1342
1085	REQ_SEND;	1343	REQ_SEND;
1086	}	1344	}
1087		1345
1088	void	1346	void
1089	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1347	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1090	PPCODE:	1348	PPCODE:
1091	{	1349	{
1092	dREQ;	1350	dREQ;
1093		1351
1094	req->sv1 = newSVsv (fh_or_path);
1095	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1096		1353	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1097	if (SvPOK (req->sv1))
1098	{
1099	req->type = EIO_TRUNCATE;
1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
1101	}
1102	else
1103	{
1104	req->type = EIO_FTRUNCATE;
1105	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1106	}
1107		1354
1108	REQ_SEND;	1355	REQ_SEND;
1109	}	1356	}
1110		1357
1111	void	1358	void
1112	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1359	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1113	ALIAS:
1114	aio_chmod = EIO_CHMOD
1115	aio_mkdir = EIO_MKDIR
1116	PPCODE:	1360	PPCODE:
1117	{	1361	{
1118	dREQ;	1362	dREQ;
1119		1363
1120	req->int2 = mode;	1364	req->int2 = mode;
1121	req->sv1 = newSVsv (fh_or_path);	1365	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1122
1123	if (SvPOK (req->sv1))
1124	{
1125	req->type = ix;
1126	req->ptr1 = SvPVbyte_nolen (req->sv1);
1127	}
1128	else
1129	{
1130	req->type = EIO_FCHMOD;
1131	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1132	}
1133		1366
1134	REQ_SEND;	1367	REQ_SEND;
1135	}	1368	}
1136		1369
1137	void	1370	void
…		…
1140	{	1373	{
1141	dREQ;	1374	dREQ;
1142		1375
1143	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1376	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1144	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1377	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1145	req->sv1 = newSVsv (fh_or_path);	1378	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1146
1147	if (SvPOK (req->sv1))
1148	{
1149	req->type = EIO_CHOWN;
1150	req->ptr1 = SvPVbyte_nolen (req->sv1);
1151	}
1152	else
1153	{
1154	req->type = EIO_FCHOWN;
1155	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1156	}
1157		1379
1158	REQ_SEND;	1380	REQ_SEND;
1159	}	1381	}
1160		1382
1161	void	1383	void
…		…
1163	PPCODE:	1385	PPCODE:
1164	{	1386	{
1165	dREQ;	1387	dREQ;
1166		1388
1167	req->type = EIO_READDIR;	1389	req->type = EIO_READDIR;
1168	req->sv1 = newSVsv (pathname);
1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
1170	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1390	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1171		1391
1172	if (flags & EIO_READDIR_DENTS)	1392	if (flags & EIO_READDIR_DENTS)
1173	req->int1 |= EIO_READDIR_CUSTOM2;	1393	req->int1 |= EIO_READDIR_CUSTOM2;
1174		1394
		1395	req_set_path1 (req, pathname);
		1396
1175	REQ_SEND;	1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	dREQ;
		1405
		1406	req->type = EIO_MKDIR;
		1407	req->int2 = mode;
		1408	req_set_path1 (req, pathname);
		1409
		1410	REQ_SEND;
1176	}	1411	}
1177		1412
1178	void	1413	void
1179	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1414	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1180	ALIAS:	1415	ALIAS:
…		…
1184	PPCODE:	1419	PPCODE:
1185	{	1420	{
1186	dREQ;	1421	dREQ;
1187		1422
1188	req->type = ix;	1423	req->type = ix;
1189	req->sv1 = newSVsv (pathname);	1424	req_set_path1 (req, pathname);
1190	req->ptr1 = SvPVbyte_nolen (req->sv1);
1191		1425
1192	REQ_SEND;	1426	REQ_SEND;
1193	}	1427	}
1194		1428
1195	void	1429	void
…		…
1198	aio_link = EIO_LINK	1432	aio_link = EIO_LINK
1199	aio_symlink = EIO_SYMLINK	1433	aio_symlink = EIO_SYMLINK
1200	aio_rename = EIO_RENAME	1434	aio_rename = EIO_RENAME
1201	PPCODE:	1435	PPCODE:
1202	{	1436	{
		1437	eio_wd wd2 = 0;
1203	dREQ;	1438	dREQ;
1204		1439
1205	req->type = ix;	1440	req->type = ix;
1206	req->sv1 = newSVsv (oldpath);	1441	req_set_path1 (req, oldpath);
1207	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1208	req->sv2 = newSVsv (newpath);	1443	req->int3 = (long)wd2;
1209	req->ptr2 = SvPVbyte_nolen (req->sv2);
1210		1444
1211	REQ_SEND;	1445	REQ_SEND;
1212	}	1446	}
1213		1447
1214	void	1448	void
…		…
1216	PPCODE:	1450	PPCODE:
1217	{	1451	{
1218	dREQ;	1452	dREQ;
1219		1453
1220	req->type = EIO_MKNOD;	1454	req->type = EIO_MKNOD;
1221	req->sv1 = newSVsv (pathname);
1222	req->ptr1 = SvPVbyte_nolen (req->sv1);
1223	req->int2 = (mode_t)mode;	1455	req->int2 = (mode_t)mode;
1224	req->offs = dev;	1456	req->offs = dev;
		1457	req_set_path1 (req, pathname);
1225		1458
1226	REQ_SEND;	1459	REQ_SEND;
1227	}	1460	}
1228		1461
1229	void	1462	void
…		…
1296		1529
1297	req->type = EIO_MLOCKALL;	1530	req->type = EIO_MLOCKALL;
1298	req->int1 = flags;	1531	req->int1 = flags;
1299		1532
1300	REQ_SEND;	1533	REQ_SEND;
		1534	}
		1535
		1536	void
		1537	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	dREQ;
		1542
		1543	req->type = EIO_CUSTOM;
		1544	req->sv1 = newSVsv (fh);
		1545	req->int1 = fd;
		1546
		1547	req->feed = fiemap;
		1548	#if HAVE_FIEMAP
		1549	/* keep our fingers crossed that the next two types are 64 bit */
		1550	req->offs = start;
		1551	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1552	req->int2 = flags;
		1553	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1554	#endif
		1555
		1556	REQ_SEND;
1301	}	1557	}
1302		1558
1303	void	1559	void
1304	aio_busy (double delay, SV *callback=&PL_sv_undef)	1560	aio_busy (double delay, SV *callback=&PL_sv_undef)
1305	PPCODE:	1561	PPCODE:
…		…
1429	CODE:	1685	CODE:
1430	RETVAL = posix_fadvise (fh, offset, length, advice);	1686	RETVAL = posix_fadvise (fh, offset, length, advice);
1431	OUTPUT:	1687	OUTPUT:
1432	RETVAL	1688	RETVAL
1433		1689
1434	ssize_t	1690	IV
1435	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1691	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1436	CODE:	1692	CODE:
1437	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1693	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1438	OUTPUT:	1694	OUTPUT:
1439	RETVAL	1695	RETVAL
1440		1696
1441	void	1697	void
1442	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1698	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1443	PPCODE:	1699	PPCODE:
1444	sv_unmagic (scalar, MMAP_MAGIC);	1700	sv_unmagic (scalar, MMAP_MAGIC);
1445	{	1701	{
1446	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1702	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1447	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1703	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1480	ALIAS:	1736	ALIAS:
1481	mprotect = 1	1737	mprotect = 1
1482	CODE:	1738	CODE:
1483	{	1739	{
1484	STRLEN svlen;	1740	STRLEN svlen;
1485	void *addr = SvPVbyte (scalar, svlen);	1741	void *addr = SvPVbyte (scalar, svlen);
1486	size_t len = SvUV (length);	1742	size_t len = SvUV (length);
1487		1743
1488	if (offset < 0)	1744	if (offset < 0)
1489	offset += svlen;	1745	offset += svlen;
1490		1746
…		…
1523	if (!SvOK (length) || len + offset > svlen)	1779	if (!SvOK (length) || len + offset > svlen)
1524	len = svlen - offset;	1780	len = svlen - offset;
1525		1781
1526	addr = (void *)(((intptr_t)addr) + offset);	1782	addr = (void *)(((intptr_t)addr) + offset);
1527	eio_page_align (&addr, &len);	1783	eio_page_align (&addr, &len);
1528	#if _POSIX_MEMLOCK	1784	#if _POSIX_MEMLOCK_RANGE
1529	RETVAL = munlock (addr, len);	1785	RETVAL = munlock (addr, len);
1530	#else	1786	#else
1531	RETVAL = ((errno = ENOSYS), -1);	1787	RETVAL = EIO_ENOSYS ();
1532	#endif	1788	#endif
1533	}	1789	}
1534	OUTPUT:	1790	OUTPUT:
1535	RETVAL	1791	RETVAL
1536		1792
…		…
1538	munlockall ()	1794	munlockall ()
1539	CODE:	1795	CODE:
1540	#if _POSIX_MEMLOCK	1796	#if _POSIX_MEMLOCK
1541	munlockall ();	1797	munlockall ();
1542	#else	1798	#else
1543	RETVAL = -1;	1799	RETVAL = EIO_ENOSYS ();
1544	errno = ENOSYS;
1545	#endif	1800	#endif
1546	OUTPUT:	1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1806	CODE:
		1807	{
		1808	#if HAVE_LINUX_SPLICE
		1809	loff_t off_in_, off_out_;
		1810	RETVAL = splice (
		1811	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1812	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1813	length, flags
		1814	);
		1815	#else
		1816	RETVAL = EIO_ENOSYS ();
		1817	#endif
		1818	}
		1819	OUTPUT:
		1820	RETVAL
		1821
		1822	int
		1823	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1824	CODE:
		1825	#if HAVE_LINUX_SPLICE
		1826	RETVAL = tee (rfh, wfh, length, flags);
		1827	#else
		1828	RETVAL = EIO_ENOSYS ();
		1829	#endif
		1830	OUTPUT:
1547	RETVAL	1831	RETVAL
1548		1832
1549	void _on_next_submit (SV *cb)	1833	void _on_next_submit (SV *cb)
1550	CODE:	1834	CODE:
1551	SvREFCNT_dec (on_next_submit);	1835	SvREFCNT_dec (on_next_submit);
1552	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1836	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1553		1837
1554	PROTOTYPES: DISABLE	1838	PROTOTYPES: DISABLE
1555		1839
		1840	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1841
		1842	BOOT:
		1843	{
		1844	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1845	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1846	}
		1847
		1848	void
		1849	DESTROY (SV *self)
		1850	CODE:
		1851	{
		1852	aio_wd wd = SvAIO_WD (self);
		1853	#if HAVE_AT
		1854	{
		1855	SV *callback = &PL_sv_undef;
		1856	dREQ; /* clobbers next_pri :/ */
		1857	next_pri = req->pri; /* restore next_pri */
		1858	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1859	req->type = EIO_WD_CLOSE;
		1860	req->wd = wd;
		1861	REQ_SEND;
		1862	}
		1863	#else
		1864	eio_wd_close_sync (wd);
		1865	#endif
		1866	}
		1867
1556	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1868	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1557		1869
1558	void	1870	void
1559	cancel (aio_req_ornot req)	1871	cancel (aio_req_ornot req)
1560	CODE:	1872	CODE:

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