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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.172 by root, Sun Sep 12 03:36:27 2010 UTC vs.
Revision 1.217 by root, Fri Jul 27 17:24:06 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
		119	#include "libeio/config.h"
123	#include "libeio/eio.h"	120	#include "libeio/eio.h"
124		121
125	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
128	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		126
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	127	#include "libeio/eio.c"
		128
		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	133	#if !HAVE_POSIX_MADVISE
150	# define POSIX_MADV_NORMAL 0
151	# define NO_MADVISE 1
152	#endif
153	#ifndef POSIX_MADV_SEQUENTIAL
154	# define POSIX_MADV_SEQUENTIAL 0
155	#endif
156	#ifndef POSIX_MADV_RANDOM
157	# define POSIX_MADV_RANDOM 0
158	#endif
159	#ifndef POSIX_MADV_WILLNEED
160	# define POSIX_MADV_WILLNEED 0
161	#endif
162	#ifndef POSIX_MADV_DONTNEED
163	# define POSIX_MADV_DONTNEED 0
164	#endif
165
166	#if _XOPEN_SOURCE < 600 || NO_MADVISE
167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168	#endif
169
170	#ifndef PROT_NONE
171	# define PROT_NONE 0
172	#endif
173	#ifndef PROT_READ
174	# define PROT_READ 0
175	#endif
176	#ifndef PROT_WRITE
177	# define PROT_READ 0
178	#endif
179	#ifndef PROT_EXEC
180	# define PROT_EXEC 0
181	#endif
182
183	#ifndef ST_NODEV
184	# define ST_NODEV 0
185	#endif
186	#ifndef ST_NOEXEC
187	# define ST_NOEXEC 0
188	#endif
189	#ifndef ST_SYNCHRONOUS
190	# define ST_SYNCHRONOUS 0
191	#endif
192	#ifndef ST_MANDLOCK
193	# define ST_MANDLOCK 0
194	#endif
195	#ifndef ST_WRITE
196	# define ST_WRITE 0
197	#endif
198	#ifndef ST_APPEND
199	# define ST_APPEND 0
200	#endif
201	#ifndef ST_IMMUTABLE
202	# define ST_IMMUTABLE 0
203	#endif
204	#ifndef ST_NOATIME
205	# define ST_NOATIME 0
206	#endif
207	#ifndef ST_NODIRATIME
208	# define ST_NODIRATIME 0
209	#endif
210	#ifndef ST_RELATIME
211	# define ST_RELATIME 0
212	#endif	135	#endif
213		136
214	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
215	# ifdef MAP_ANON	138	# ifdef MAP_ANON
216	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
217	# else	140	# else
218	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
219	# endif	142	# endif
220	#endif	143	#endif
221	#ifndef MAP_HUGETLB	144
222	# 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))
223	#endif	150	#endif
224	#ifndef MAP_LOCKED	151	#ifndef major
225	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
226	#endif	153	#endif
227	#ifndef MAP_NORESERVE	154	#ifndef minor
228	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
229	#endif
230	#ifndef MAP_POPULATE
231	# define MAP_POPULATE 0
232	#endif
233	#ifndef MAP_NONBLOCK
234	# define MAP_NONBLOCK 0
235	#endif	156	#endif
236		157
237	#ifndef PAGESIZE	158	#ifndef PAGESIZE
238	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
239	#endif	160	#endif
240		161
241	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
242	#define EIO_FINISH(req) req_invoke (req)	163
243	static void req_destroy (eio_req *grp);	164	static void
244	#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 64 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 maybe 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
245		221
246	enum {	222	enum {
247	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
248	};	224	};
249		225
250	#include "libeio/eio.c"
251
252	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
253	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
254		229
255	static SV *on_next_submit;	230	static SV *on_next_submit;
256	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
257	static int max_outstanding;	232	static int max_outstanding;
258		233
259	static s_epipe respipe;	234	static s_epipe respipe;
260		235
261	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
262	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
263		238
264	static void want_poll (void)	239	static void
		240	want_poll (void)
265	{	241	{
266	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
267	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
268	}	244	}
269		245
270	static void done_poll (void)	246	static void
		247	done_poll (void)
271	{	248	{
272	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
273	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
274	}	251	}
275		252
276	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
277	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
278	{	256	{
279	if (!req->self)	257	if (!req->self)
280	{	258	{
281	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
282	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
283	}	261	}
284		262
285	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
286	}	264	}
287		265
288	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
289	{	274	{
290	MAGIC *mg;	275	MAGIC *mg;
291		276
292	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
293	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
294	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
295	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
296	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
297		283
298	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
299		285
300	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
301	}	287	}
302		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
303	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
304	{	302	{
305	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
306	{	304	{
307	dSP;	305	dSP;
308		306
…		…
316	FREETMPS;	314	FREETMPS;
317	LEAVE;	315	LEAVE;
318	}	316	}
319	}	317	}
320		318
		319	static void
321	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
322	{	321	{
323	eio_submit (req);	322	eio_submit (req);
324		323
325	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
326	{	325	{
…		…
333	PUTBACK;	332	PUTBACK;
334	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
335	}	334	}
336	}	335	}
337		336
		337	static int
338	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
339	{	339	{
340	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
341	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
342		342
343	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
…		…
354	/* do not recreate the result IV from scratch each time */	354	/* do not recreate the result IV from scratch each time */
355	if (expect_true (sv_result_cache))	355	if (expect_true (sv_result_cache))
356	{	356	{
357	sv_result = sv_result_cache; sv_result_cache = 0;	357	sv_result = sv_result_cache; sv_result_cache = 0;
358	SvIV_set (sv_result, req->result);	358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
359	}	360	}
360	else	361	else
361	{	362	{
362	sv_result = newSViv (req->result);	363	sv_result = newSViv (req->result);
363	SvREADONLY_on (sv_result);	364	SvREADONLY_on (sv_result);
364	}	365	}
365		366
366	switch (req->type)	367	switch (req->type)
367	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
368	case EIO_READDIR:	373	case EIO_READDIR:
369	{	374	{
370	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
371		376
372	if (req->result >= 0)	377	if (req->result >= 0)
…		…
460	case EIO_STATVFS:	465	case EIO_STATVFS:
461	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
462	{	467	{
463	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
464		469
		470	#ifndef _WIN32
465	if (req->result >= 0)	471	if (req->result >= 0)
466	{	472	{
467	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
468	HV *hv = newHV ();	474	HV *hv = newHV ();
469		475
…		…
479	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
480	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
481	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
482	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
483	}	489	}
		490	#endif
484		491
485	PUSHs (rv);	492	PUSHs (rv);
486	}	493	}
487		494
488	break;	495	break;
…		…
504	case EIO_NOP:	511	case EIO_NOP:
505	case EIO_BUSY:	512	case EIO_BUSY:
506	break;	513	break;
507		514
508	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
509	if (req->result > 0)	517	if (req->result > 0)
510	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
511	break;	519	break;
512		520
513	case EIO_STAT:	521	case EIO_STAT:
514	case EIO_LSTAT:	522	case EIO_LSTAT:
515	case EIO_FSTAT:	523	case EIO_FSTAT:
516	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
517	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
518	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		529
519	PUSHs (sv_result);	530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
520	break;	535	break;
521		536
522	case EIO_READ:	537	case EIO_READ:
523	{	538	{
524	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
527	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
528	PUSHs (sv_result);	543	PUSHs (sv_result);
529	}	544	}
530	break;	545	break;
531		546
		547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
532	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
533	if (req->result > 0)	588	if (req->result > 0)
534	SvIV_set (sv_result, 0);	589	SvIV_set (sv_result, 0);
535	/* FALLTHROUGH */	590	/* FALLTHROUGH */
536		591
537	default:	592	default:
…		…
557	}	612	}
558		613
559	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
560	}	615	}
561		616
		617	static void
562	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
563	{	619	{
564	if (req->self)	620	if (req->self)
565	{	621	{
566	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
567	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
568	}	624	}
569		625
570	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
571	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
572	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
573		631
574	Safefree (req);	632	free (req);
575	}	633	}
576		634
		635	static void
577	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
578	{	637	{
579	aio_req sub;
580
581	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
582	return;	639	return;
583		640
584	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
585	grp->sv2 = 0;	642	grp->sv2 = 0;
586		643
587	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
588	}	645	}
589		646
590	static void	647	static void ecb_cold
591	create_respipe (void)	648	create_respipe (void)
592	{	649	{
593	if (s_epipe_renew (&respipe))	650	if (s_epipe_renew (&respipe))
594	croak ("IO::AIO: unable to initialize result pipe");	651	croak ("IO::AIO: unable to initialize result pipe");
595	}	652	}
596		653
597	static void poll_wait (void)	654	static void
		655	poll_wait (void)
598	{	656	{
599	while (eio_nreqs ())	657	while (eio_nreqs ())
600	{	658	{
601	int size;	659	int size;
602		660
…		…
611		669
612	s_epipe_wait (&respipe);	670	s_epipe_wait (&respipe);
613	}	671	}
614	}	672	}
615		673
616	static int poll_cb (void)	674	static int
		675	poll_cb (void)
617	{	676	{
618	for (;;)	677	for (;;)
619	{	678	{
620	int res = eio_poll ();	679	int res = eio_poll ();
621		680
…		…
627		686
628	poll_wait ();	687	poll_wait ();
629	}	688	}
630	}	689	}
631		690
632	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
633	{	693	{
634	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
635	}	698	}
636		699
637	/*****************************************************************************/	700	/*****************************************************************************/
638		701
639	#if !_POSIX_MAPPED_FILES	702	#if !_POSIX_MAPPED_FILES
640	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
641	# define munmap(addr,length) (errno = ENOSYS, -1)	704	# define munmap(addr,length) EIO_ENOSYS ()
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
642	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
643	#endif	714	#endif
644		715
645	#define MMAP_MAGIC PERL_MAGIC_ext	716	#define MMAP_MAGIC PERL_MAGIC_ext
646		717
647	static int	718	static int ecb_cold
648	mmap_free (pTHX_ SV *sv, MAGIC *mg)	719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
649	{	720	{
650	int old_errno = errno;	721	int old_errno = errno;
651	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
652	errno = old_errno;	723	errno = old_errno;
…		…
676	{	747	{
677	SvGETMAGIC (cb_sv);	748	SvGETMAGIC (cb_sv);
678	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
679	}	750	}
680		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
		770	}
		771
681	#define dREQ \	772	#define dREQ \
682	SV *cb_cv; \	773	aio_req req = dreq (callback); \
683	aio_req req; \
684	int req_pri = next_pri; \
685	next_pri = EIO_PRI_DEFAULT; \
686	\
687	cb_cv = get_cb (callback); \
688	\
689	Newz (0, req, 1, eio_req); \
690	if (!req) \
691	croak ("out of memory during eio_req allocation"); \
692	\
693	req->callback = SvREFCNT_inc (cb_cv); \
694	req->pri = req_pri
695		774
696	#define REQ_SEND \	775	#define REQ_SEND \
697	PUTBACK; \	776	PUTBACK; \
698	req_submit (req); \	777	req_submit (req); \
699	SPAGAIN; \	778	SPAGAIN; \
700	\	779	\
701	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
702	XPUSHs (req_sv (req, aio_req_stash));	781	XPUSHs (req_sv (req, aio_req_stash));
703		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
		848
704	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
705		850
706	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
707		852
708	BOOT:	853	BOOT:
…		…
712	IV iv;	857	IV iv;
713	} *civ, const_iv[] = {	858	} *civ, const_iv[] = {
714	# define const_niv(name, value) { # name, (IV) value },	859	# define const_niv(name, value) { # name, (IV) value },
715	# define const_iv(name) { # name, (IV) name },	860	# define const_iv(name) { # name, (IV) name },
716	# define const_eio(name) { # name, (IV) EIO_ ## name },	861	# define const_eio(name) { # name, (IV) EIO_ ## name },
		862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
		865	const_iv (ENOSYS)
717	const_iv (EXDEV)	866	const_iv (EXDEV)
718	const_iv (ENOSYS)	867	const_iv (EBADR)
		868
719	const_iv (O_RDONLY)	869	const_iv (O_RDONLY)
720	const_iv (O_WRONLY)	870	const_iv (O_WRONLY)
721	const_iv (O_RDWR)	871	const_iv (O_RDWR)
722	const_iv (O_CREAT)	872	const_iv (O_CREAT)
723	const_iv (O_TRUNC)	873	const_iv (O_TRUNC)
724	const_iv (O_EXCL)	874	const_iv (O_EXCL)
725	const_iv (O_APPEND)	875	const_iv (O_APPEND)
726	#ifndef _WIN32	876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
727	const_iv (S_IFIFO)	893	const_iv (S_IFIFO)
728	#endif	894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
729	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
730	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
731	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
732	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
733	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
767	const_iv (MAP_LOCKED)	941	const_iv (MAP_LOCKED)
768	const_iv (MAP_NORESERVE)	942	const_iv (MAP_NORESERVE)
769	const_iv (MAP_POPULATE)	943	const_iv (MAP_POPULATE)
770	const_iv (MAP_NONBLOCK)	944	const_iv (MAP_NONBLOCK)
771		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_iv (SPLICE_F_MOVE)
		962	const_iv (SPLICE_F_NONBLOCK)
		963	const_iv (SPLICE_F_MORE)
		964	const_iv (SPLICE_F_GIFT)
		965
		966	const_iv (SEEK_DATA)
		967	const_iv (SEEK_HOLE)
		968
		969	/* libeio constants */
		970	const_eio (SEEK_SET)
		971	const_eio (SEEK_CUR)
		972	const_eio (SEEK_END)
		973
772	const_eio (MCL_FUTURE)	974	const_eio (MCL_FUTURE)
773	const_eio (MCL_CURRENT)	975	const_eio (MCL_CURRENT)
774		976
775	const_eio (MS_ASYNC)	977	const_eio (MS_ASYNC)
776	const_eio (MS_INVALIDATE)	978	const_eio (MS_INVALIDATE)
…		…
779	const_eio (MT_MODIFY)	981	const_eio (MT_MODIFY)
780		982
781	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
782	const_eio (SYNC_FILE_RANGE_WRITE)	984	const_eio (SYNC_FILE_RANGE_WRITE)
783	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		986
		987	const_eio (FALLOC_FL_KEEP_SIZE)
		988	const_eio (FALLOC_FL_PUNCH_HOLE)
784		989
785	const_eio (READDIR_DENTS)	990	const_eio (READDIR_DENTS)
786	const_eio (READDIR_DIRS_FIRST)	991	const_eio (READDIR_DIRS_FIRST)
787	const_eio (READDIR_STAT_ORDER)	992	const_eio (READDIR_STAT_ORDER)
788	const_eio (READDIR_FOUND_UNKNOWN)	993	const_eio (READDIR_FOUND_UNKNOWN)
…		…
799	};	1004	};
800		1005
801	aio_stash = gv_stashpv ("IO::AIO" , 1);	1006	aio_stash = gv_stashpv ("IO::AIO" , 1);
802	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1007	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
803	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1008	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1009	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
804		1010
805	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1011	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
806	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1012	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
807		1013
808	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1014	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
809		1015
810	create_respipe ();	1016	reinit ();
811
812	if (eio_init (want_poll, done_poll) < 0)
813	croak ("IO::AIO: unable to initialise eio library");
814
815	/* atfork child called in fifo order, so before eio's handler */
816	X_THREAD_ATFORK (0, 0, atfork_child);
817	}	1017	}
818		1018
819	void	1019	void
		1020	reinit ()
		1021	PROTOTYPE:
		1022
		1023	void
820	max_poll_reqs (int nreqs)	1024	max_poll_reqs (unsigned int nreqs)
821	PROTOTYPE: $	1025	PROTOTYPE: $
822	CODE:	1026	CODE:
823	eio_set_max_poll_reqs (nreqs);	1027	eio_set_max_poll_reqs (nreqs);
824		1028
825	void	1029	void
…		…
827	PROTOTYPE: $	1031	PROTOTYPE: $
828	CODE:	1032	CODE:
829	eio_set_max_poll_time (nseconds);	1033	eio_set_max_poll_time (nseconds);
830		1034
831	void	1035	void
832	min_parallel (int nthreads)	1036	min_parallel (unsigned int nthreads)
833	PROTOTYPE: $	1037	PROTOTYPE: $
834	CODE:	1038	CODE:
835	eio_set_min_parallel (nthreads);	1039	eio_set_min_parallel (nthreads);
836		1040
837	void	1041	void
838	max_parallel (int nthreads)	1042	max_parallel (unsigned int nthreads)
839	PROTOTYPE: $	1043	PROTOTYPE: $
840	CODE:	1044	CODE:
841	eio_set_max_parallel (nthreads);	1045	eio_set_max_parallel (nthreads);
842		1046
843	void	1047	void
844	max_idle (int nthreads)	1048	max_idle (unsigned int nthreads)
845	PROTOTYPE: $	1049	PROTOTYPE: $
846	CODE:	1050	CODE:
847	eio_set_max_idle (nthreads);	1051	eio_set_max_idle (nthreads);
848		1052
849	void	1053	void
		1054	idle_timeout (unsigned int seconds)
		1055	PROTOTYPE: $
		1056	CODE:
		1057	eio_set_idle_timeout (seconds);
		1058
		1059	void
850	max_outstanding (int maxreqs)	1060	max_outstanding (unsigned int maxreqs)
851	PROTOTYPE: $	1061	PROTOTYPE: $
852	CODE:	1062	CODE:
853	max_outstanding = maxreqs;	1063	max_outstanding = maxreqs;
854		1064
855	void	1065	void
		1066	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1067	PPCODE:
		1068	{
		1069	dREQ;
		1070
		1071	req->type = EIO_WD_OPEN;
		1072	req_set_path1 (req, pathname);
		1073
		1074	REQ_SEND;
		1075	}
		1076
		1077	void
856	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1078	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
857	PPCODE:	1079	PPCODE:
858	{	1080	{
859	dREQ;	1081	dREQ;
860		1082
861	req->type = EIO_OPEN;	1083	req->type = EIO_OPEN;
862	req->sv1 = newSVsv (pathname);	1084	req_set_path1 (req, pathname);
863	req->ptr1 = SvPVbyte_nolen (req->sv1);
864	req->int1 = flags;	1085	req->int1 = flags;
865	req->int2 = mode;	1086	req->int2 = mode;
866		1087
867	REQ_SEND;	1088	REQ_SEND;
868	}	1089	}
…		…
870	void	1091	void
871	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1092	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
872	ALIAS:	1093	ALIAS:
873	aio_fsync = EIO_FSYNC	1094	aio_fsync = EIO_FSYNC
874	aio_fdatasync = EIO_FDATASYNC	1095	aio_fdatasync = EIO_FDATASYNC
		1096	aio_syncfs = EIO_SYNCFS
875	PPCODE:	1097	PPCODE:
876	{	1098	{
877	int fd = s_fileno_croak (fh, 0);	1099	int fd = s_fileno_croak (fh, 0);
878	dREQ;	1100	dREQ;
879		1101
880	req->type = ix;	1102	req->type = ix;
881	req->sv1 = newSVsv (fh);	1103	req->sv1 = newSVsv (fh);
882	req->int1 = fd;	1104	req->int1 = fd;
883		1105
884	REQ_SEND (req);	1106	REQ_SEND;
885	}	1107	}
886		1108
887	void	1109	void
888	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1110	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
889	PPCODE:	1111	PPCODE:
…		…
896	req->int1 = fd;	1118	req->int1 = fd;
897	req->offs = offset;	1119	req->offs = offset;
898	req->size = nbytes;	1120	req->size = nbytes;
899	req->int2 = flags;	1121	req->int2 = flags;
900		1122
901	REQ_SEND (req);	1123	REQ_SEND;
		1124	}
		1125
		1126	void
		1127	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1128	PPCODE:
		1129	{
		1130	int fd = s_fileno_croak (fh, 0);
		1131	dREQ;
		1132
		1133	req->type = EIO_FALLOCATE;
		1134	req->sv1 = newSVsv (fh);
		1135	req->int1 = fd;
		1136	req->int2 = mode;
		1137	req->offs = offset;
		1138	req->size = len;
		1139
		1140	REQ_SEND;
902	}	1141	}
903		1142
904	void	1143	void
905	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1144	aio_close (SV *fh, SV *callback=&PL_sv_undef)
906	PPCODE:	1145	PPCODE:
907	{	1146	{
908	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1147	static int close_fd = -1; /* dummy fd to close fds via dup2 */
909	int fd = s_fileno_croak (fh, 0);	1148	int fd = s_fileno_croak (fh, 0);
910	dREQ;	1149	dREQ;
911		1150
912	if (close_pipe < 0)	1151	if (expect_false (close_fd < 0))
913	{	1152	{
914	int pipefd [2];	1153	int pipefd [2];
915		1154
		1155	if (
		1156	#ifdef _WIN32
		1157	_pipe (pipefd, 1, _O_BINARY) < 0
		1158	#else
916	if (pipe (pipefd) < 0	1159	pipe (pipefd) < 0
917	|| close (pipefd [1]) < 0
918	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1160	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1161	#endif
		1162	|| close (pipefd [1]) < 0
		1163	)
919	abort (); /*D*/	1164	abort (); /*D*/
920		1165
921	close_pipe = pipefd [0];	1166	close_fd = pipefd [0];
922	}	1167	}
923		1168
924	req->type = EIO_DUP2;	1169	req->type = EIO_DUP2;
925	req->int1 = close_pipe;	1170	req->int1 = close_fd;
926	req->sv2 = newSVsv (fh);	1171	req->sv2 = newSVsv (fh);
927	req->int2 = fd;	1172	req->int2 = fd;
928		1173
929	REQ_SEND (req);	1174	REQ_SEND;
		1175	}
		1176
		1177	void
		1178	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1179	PPCODE:
		1180	{
		1181	int fd = s_fileno_croak (fh, 0);
		1182	dREQ;
		1183
		1184	req->type = EIO_SEEK;
		1185	req->sv1 = newSVsv (fh);
		1186	req->int1 = fd;
		1187	req->offs = SvVAL64 (offset);
		1188	req->int2 = whence;
		1189
		1190	REQ_SEND;
930	}	1191	}
931		1192
932	void	1193	void
933	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1194	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
934	ALIAS:	1195	ALIAS:
…		…
955	}	1216	}
956	else	1217	else
957	{	1218	{
958	/* read: check type and grow scalar as necessary */	1219	/* read: check type and grow scalar as necessary */
959	SvUPGRADE (data, SVt_PV);	1220	SvUPGRADE (data, SVt_PV);
		1221	if (SvLEN (data) >= SvCUR (data))
960	svptr = SvGROW (data, len + dataoffset + 1);	1222	svptr = SvGROW (data, len + dataoffset + 1);
		1223	else if (SvCUR (data) < len + dataoffset)
		1224	croak ("length + dataoffset outside of scalar, and cannot grow");
961	}	1225	}
962		1226
963	{	1227	{
964	dREQ;	1228	dREQ;
965		1229
…		…
981	REQ_SEND;	1245	REQ_SEND;
982	}	1246	}
983	}	1247	}
984		1248
985	void	1249	void
986	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1250	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
		1251	ALIAS:
		1252	aio_readlink = EIO_READLINK
		1253	aio_realpath = EIO_REALPATH
987	PPCODE:	1254	PPCODE:
988	{	1255	{
989	SV *data;
990	dREQ;	1256	dREQ;
991		1257
992	req->type = EIO_READLINK;	1258	req->type = ix;
993	req->sv1 = newSVsv (path);	1259	req_set_path1 (req, pathname);
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995		1260
996	REQ_SEND;	1261	REQ_SEND;
997	}	1262	}
998		1263
999	void	1264	void
…		…
1039	aio_statvfs = EIO_STATVFS	1304	aio_statvfs = EIO_STATVFS
1040	PPCODE:	1305	PPCODE:
1041	{	1306	{
1042	dREQ;	1307	dREQ;
1043		1308
1044	req->sv1 = newSVsv (fh_or_path);	1309	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1045
1046	if (SvPOK (req->sv1))
1047	{
1048	req->type = ix;
1049	req->ptr1 = SvPVbyte_nolen (req->sv1);
1050	}
1051	else
1052	{
1053	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1054	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1055	}
1056		1310
1057	REQ_SEND;	1311	REQ_SEND;
1058	}	1312	}
		1313
		1314	UV
		1315	major (UV dev)
		1316	ALIAS:
		1317	minor = 1
		1318	CODE:
		1319	RETVAL = ix ? major (dev) : minor (dev);
		1320	OUTPUT:
		1321	RETVAL
		1322
		1323	UV
		1324	makedev (UV maj, UV min)
		1325	CODE:
		1326	RETVAL = makedev (maj, min);
		1327	OUTPUT:
		1328	RETVAL
1059		1329
1060	void	1330	void
1061	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1331	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1062	PPCODE:	1332	PPCODE:
1063	{	1333	{
1064	dREQ;	1334	dREQ;
1065		1335
1066	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1336	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1067	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1337	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1068	req->sv1 = newSVsv (fh_or_path);	1338	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1069
1070	if (SvPOK (req->sv1))
1071	{
1072	req->type = EIO_UTIME;
1073	req->ptr1 = SvPVbyte_nolen (req->sv1);
1074	}
1075	else
1076	{
1077	req->type = EIO_FUTIME;
1078	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1079	}
1080		1339
1081	REQ_SEND;	1340	REQ_SEND;
1082	}	1341	}
1083		1342
1084	void	1343	void
1085	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1344	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1086	PPCODE:	1345	PPCODE:
1087	{	1346	{
1088	dREQ;	1347	dREQ;
1089		1348
1090	req->sv1 = newSVsv (fh_or_path);
1091	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1349	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1092		1350	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1093	if (SvPOK (req->sv1))
1094	{
1095	req->type = EIO_TRUNCATE;
1096	req->ptr1 = SvPVbyte_nolen (req->sv1);
1097	}
1098	else
1099	{
1100	req->type = EIO_FTRUNCATE;
1101	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1102	}
1103		1351
1104	REQ_SEND;	1352	REQ_SEND;
1105	}	1353	}
1106		1354
1107	void	1355	void
1108	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1356	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1109	ALIAS:
1110	aio_chmod = EIO_CHMOD
1111	aio_mkdir = EIO_MKDIR
1112	PPCODE:	1357	PPCODE:
1113	{	1358	{
1114	dREQ;	1359	dREQ;
1115		1360
1116	req->int2 = mode;	1361	req->int2 = mode;
1117	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1118
1119	if (SvPOK (req->sv1))
1120	{
1121	req->type = ix;
1122	req->ptr1 = SvPVbyte_nolen (req->sv1);
1123	}
1124	else
1125	{
1126	req->type = EIO_FCHMOD;
1127	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1128	}
1129		1363
1130	REQ_SEND;	1364	REQ_SEND;
1131	}	1365	}
1132		1366
1133	void	1367	void
…		…
1136	{	1370	{
1137	dREQ;	1371	dREQ;
1138		1372
1139	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1373	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1140	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1374	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1141	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1142
1143	if (SvPOK (req->sv1))
1144	{
1145	req->type = EIO_CHOWN;
1146	req->ptr1 = SvPVbyte_nolen (req->sv1);
1147	}
1148	else
1149	{
1150	req->type = EIO_FCHOWN;
1151	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1152	}
1153		1376
1154	REQ_SEND;	1377	REQ_SEND;
1155	}	1378	}
1156		1379
1157	void	1380	void
…		…
1159	PPCODE:	1382	PPCODE:
1160	{	1383	{
1161	dREQ;	1384	dREQ;
1162		1385
1163	req->type = EIO_READDIR;	1386	req->type = EIO_READDIR;
1164	req->sv1 = newSVsv (pathname);
1165	req->ptr1 = SvPVbyte_nolen (req->sv1);
1166	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1387	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1167		1388
1168	if (flags & EIO_READDIR_DENTS)	1389	if (flags & EIO_READDIR_DENTS)
1169	req->int1 |= EIO_READDIR_CUSTOM2;	1390	req->int1 |= EIO_READDIR_CUSTOM2;
1170		1391
		1392	req_set_path1 (req, pathname);
		1393
1171	REQ_SEND;	1394	REQ_SEND;
		1395	}
		1396
		1397	void
		1398	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1399	PPCODE:
		1400	{
		1401	dREQ;
		1402
		1403	req->type = EIO_MKDIR;
		1404	req->int2 = mode;
		1405	req_set_path1 (req, pathname);
		1406
		1407	REQ_SEND;
1172	}	1408	}
1173		1409
1174	void	1410	void
1175	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1411	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1176	ALIAS:	1412	ALIAS:
…		…
1180	PPCODE:	1416	PPCODE:
1181	{	1417	{
1182	dREQ;	1418	dREQ;
1183		1419
1184	req->type = ix;	1420	req->type = ix;
1185	req->sv1 = newSVsv (pathname);	1421	req_set_path1 (req, pathname);
1186	req->ptr1 = SvPVbyte_nolen (req->sv1);
1187		1422
1188	REQ_SEND;	1423	REQ_SEND;
1189	}	1424	}
1190		1425
1191	void	1426	void
…		…
1194	aio_link = EIO_LINK	1429	aio_link = EIO_LINK
1195	aio_symlink = EIO_SYMLINK	1430	aio_symlink = EIO_SYMLINK
1196	aio_rename = EIO_RENAME	1431	aio_rename = EIO_RENAME
1197	PPCODE:	1432	PPCODE:
1198	{	1433	{
		1434	eio_wd wd2 = 0;
1199	dREQ;	1435	dREQ;
1200		1436
1201	req->type = ix;	1437	req->type = ix;
1202	req->sv1 = newSVsv (oldpath);	1438	req_set_path1 (req, oldpath);
1203	req->ptr1 = SvPVbyte_nolen (req->sv1);	1439	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1204	req->sv2 = newSVsv (newpath);	1440	req->int3 = (long)wd2;
1205	req->ptr2 = SvPVbyte_nolen (req->sv2);
1206		1441
1207	REQ_SEND;	1442	REQ_SEND;
1208	}	1443	}
1209		1444
1210	void	1445	void
…		…
1212	PPCODE:	1447	PPCODE:
1213	{	1448	{
1214	dREQ;	1449	dREQ;
1215		1450
1216	req->type = EIO_MKNOD;	1451	req->type = EIO_MKNOD;
1217	req->sv1 = newSVsv (pathname);
1218	req->ptr1 = SvPVbyte_nolen (req->sv1);
1219	req->int2 = (mode_t)mode;	1452	req->int2 = (mode_t)mode;
1220	req->offs = dev;	1453	req->offs = dev;
		1454	req_set_path1 (req, pathname);
1221		1455
1222	REQ_SEND;	1456	REQ_SEND;
1223	}	1457	}
1224		1458
1225	void	1459	void
…		…
1257		1491
1258	void	1492	void
1259	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1493	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1260	PPCODE:	1494	PPCODE:
1261	{	1495	{
1262
1263	STRLEN svlen;	1496	STRLEN svlen;
1264	char *svptr = SvPVbyte (data, svlen);	1497	char *svptr = SvPVbyte (data, svlen);
1265	UV len = SvUV (length);	1498	UV len = SvUV (length);
1266		1499
1267	if (offset < 0)	1500	if (offset < 0)
…		…
1293		1526
1294	req->type = EIO_MLOCKALL;	1527	req->type = EIO_MLOCKALL;
1295	req->int1 = flags;	1528	req->int1 = flags;
1296		1529
1297	REQ_SEND;	1530	REQ_SEND;
		1531	}
		1532
		1533	void
		1534	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1535	PPCODE:
		1536	{
		1537	int fd = s_fileno_croak (fh, 0);
		1538	dREQ;
		1539
		1540	req->type = EIO_CUSTOM;
		1541	req->sv1 = newSVsv (fh);
		1542	req->int1 = fd;
		1543
		1544	req->feed = fiemap;
		1545	#if HAVE_FIEMAP
		1546	/* keep our fingers crossed that the next two types are 64 bit */
		1547	req->offs = start;
		1548	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1549	req->int2 = flags;
		1550	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1551	#endif
		1552
		1553	REQ_SEND;
1298	}	1554	}
1299		1555
1300	void	1556	void
1301	aio_busy (double delay, SV *callback=&PL_sv_undef)	1557	aio_busy (double delay, SV *callback=&PL_sv_undef)
1302	PPCODE:	1558	PPCODE:
…		…
1426	CODE:	1682	CODE:
1427	RETVAL = posix_fadvise (fh, offset, length, advice);	1683	RETVAL = posix_fadvise (fh, offset, length, advice);
1428	OUTPUT:	1684	OUTPUT:
1429	RETVAL	1685	RETVAL
1430		1686
1431	ssize_t	1687	IV
1432	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1688	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1433	CODE:	1689	CODE:
1434	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1690	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1435	OUTPUT:	1691	OUTPUT:
1436	RETVAL	1692	RETVAL
1437		1693
1438	void	1694	void
1439	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1695	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1440	PPCODE:	1696	PPCODE:
1441	sv_unmagic (scalar, MMAP_MAGIC);	1697	sv_unmagic (scalar, MMAP_MAGIC);
1442	{	1698	{
1443	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1699	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1444	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1700	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1477	ALIAS:	1733	ALIAS:
1478	mprotect = 1	1734	mprotect = 1
1479	CODE:	1735	CODE:
1480	{	1736	{
1481	STRLEN svlen;	1737	STRLEN svlen;
1482	void *addr = SvPVbyte (scalar, svlen);	1738	void *addr = SvPVbyte (scalar, svlen);
1483	size_t len = SvUV (length);	1739	size_t len = SvUV (length);
1484		1740
1485	if (offset < 0)	1741	if (offset < 0)
1486	offset += svlen;	1742	offset += svlen;
1487		1743
…		…
1520	if (!SvOK (length) || len + offset > svlen)	1776	if (!SvOK (length) || len + offset > svlen)
1521	len = svlen - offset;	1777	len = svlen - offset;
1522		1778
1523	addr = (void *)(((intptr_t)addr) + offset);	1779	addr = (void *)(((intptr_t)addr) + offset);
1524	eio_page_align (&addr, &len);	1780	eio_page_align (&addr, &len);
1525	#if _POSIX_MEMLOCK	1781	#if _POSIX_MEMLOCK_RANGE
1526	RETVAL = munlock (addr, len);	1782	RETVAL = munlock (addr, len);
1527	#else	1783	#else
1528	RETVAL = ((errno = ENOSYS), -1);	1784	RETVAL = EIO_ENOSYS ();
1529	#endif	1785	#endif
1530	}	1786	}
1531	OUTPUT:	1787	OUTPUT:
1532	RETVAL	1788	RETVAL
1533		1789
…		…
1535	munlockall ()	1791	munlockall ()
1536	CODE:	1792	CODE:
1537	#if _POSIX_MEMLOCK	1793	#if _POSIX_MEMLOCK
1538	munlockall ();	1794	munlockall ();
1539	#else	1795	#else
1540	RETVAL = -1;	1796	RETVAL = EIO_ENOSYS ();
1541	errno = ENOSYS;
1542	#endif	1797	#endif
1543	OUTPUT:	1798	OUTPUT:
		1799	RETVAL
		1800
		1801	int
		1802	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1803	CODE:
		1804	{
		1805	#if HAVE_LINUX_SPLICE
		1806	loff_t off_in_, off_out_;
		1807	RETVAL = splice (
		1808	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1809	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1810	length, flags
		1811	);
		1812	#else
		1813	RETVAL = EIO_ENOSYS ();
		1814	#endif
		1815	}
		1816	OUTPUT:
		1817	RETVAL
		1818
		1819	int
		1820	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1821	CODE:
		1822	#if HAVE_LINUX_SPLICE
		1823	RETVAL = tee (rfh, wfh, length, flags);
		1824	#else
		1825	RETVAL = EIO_ENOSYS ();
		1826	#endif
		1827	OUTPUT:
1544	RETVAL	1828	RETVAL
1545		1829
1546	void _on_next_submit (SV *cb)	1830	void _on_next_submit (SV *cb)
1547	CODE:	1831	CODE:
1548	SvREFCNT_dec (on_next_submit);	1832	SvREFCNT_dec (on_next_submit);
1549	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1833	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1550		1834
1551	PROTOTYPES: DISABLE	1835	PROTOTYPES: DISABLE
1552		1836
		1837	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1838
		1839	BOOT:
		1840	{
		1841	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1842	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1843	}
		1844
		1845	void
		1846	DESTROY (SV *self)
		1847	CODE:
		1848	{
		1849	aio_wd wd = SvAIO_WD (self);
		1850	#if HAVE_AT
		1851	{
		1852	SV *callback = &PL_sv_undef;
		1853	dREQ; /* clobbers next_pri :/ */
		1854	next_pri = req->pri; /* restore next_pri */
		1855	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1856	req->type = EIO_WD_CLOSE;
		1857	req->wd = wd;
		1858	REQ_SEND;
		1859	}
		1860	#else
		1861	eio_wd_close_sync (wd);
		1862	#endif
		1863	}
		1864
1553	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1865	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1554		1866
1555	void	1867	void
1556	cancel (aio_req_ornot req)	1868	cancel (aio_req_ornot req)
1557	CODE:	1869	CODE:

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