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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.181 by root, Tue Feb 15 03:21:41 2011 UTC vs.
Revision 1.221 by root, Wed Aug 22 22:28:03 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_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		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
212
213	#ifndef S_IFIFO
214	# define S_IFIFO 0
215	#endif
216	#ifndef S_IFCHR
217	# define S_IFCHR 0
218	#endif
219	#ifndef S_IFBLK
220	# define S_IFBLK 0
221	#endif
222	#ifndef S_IFLNK
223	# define S_IFLNK 0
224	#endif
225	#ifndef S_IFREG
226	# define S_IFREG 0
227	#endif
228	#ifndef S_IFDIR
229	# define S_IFDIR 0
230	#endif
231	#ifndef S_IFWHT
232	# define S_IFWHT 0
233	#endif
234	#ifndef S_IFSOCK
235	# define S_IFSOCK 0
236	#endif	135	#endif
237		136
238	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
239	# ifdef MAP_ANON	138	# ifdef MAP_ANON
240	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
241	# else	140	# else
242	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
243	# endif	142	# endif
244	#endif	143	#endif
245	#ifndef MAP_HUGETLB	144
246	# define MAP_HUGETLB 0	145	/* defines all sorts of constants to 0 unless they are already defined */
247	#endif	146	#include "def0.h"
248	#ifndef MAP_LOCKED
249	# define MAP_LOCKED 0
250	#endif
251	#ifndef MAP_NORESERVE
252	# define MAP_NORESERVE 0
253	#endif
254	#ifndef MAP_POPULATE
255	# define MAP_POPULATE 0
256	#endif
257	#ifndef MAP_NONBLOCK
258	# define MAP_NONBLOCK 0
259	#endif
260		147
261	#ifndef makedev	148	#ifndef makedev
262	# define makedev(maj,min) (((maj) << 8) | (min))	149	# define makedev(maj,min) (((maj) << 8) | (min))
263	#endif	150	#endif
264	#ifndef major	151	#ifndef major
…		…
270		157
271	#ifndef PAGESIZE	158	#ifndef PAGESIZE
272	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
273	#endif	160	#endif
274		161
275	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
276	#define EIO_FINISH(req) req_invoke (req)	163
277	static void req_destroy (eio_req *grp);	164	static void
278	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (atcually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
		224	return;
		225
		226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
279		258
280	enum {	259	enum {
281	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
282	};	261	};
283		262
284	#include "libeio/eio.c"
285
286	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
287	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
288		266
289	static SV *on_next_submit;	267	static SV *on_next_submit;
290	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
291	static int max_outstanding;	269	static int max_outstanding;
292		270
293	static s_epipe respipe;	271	static s_epipe respipe;
294		272
295	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
296	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
297		275
298	static void want_poll (void)	276	static void
		277	want_poll (void)
299	{	278	{
300	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
301	s_epipe_signal (&respipe);	280	s_epipe_signal (&respipe);
302	}	281	}
303		282
304	static void done_poll (void)	283	static void
		284	done_poll (void)
305	{	285	{
306	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
307	s_epipe_drain (&respipe);	287	s_epipe_drain (&respipe);
308	}	288	}
309		289
310	/* must be called at most once */	290	/* must be called at most once */
		291	static SV *
311	static SV *req_sv (aio_req req, HV *stash)	292	req_sv (aio_req req, HV *stash)
312	{	293	{
313	if (!req->self)	294	if (!req->self)
314	{	295	{
315	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
316	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
317	}	298	}
318		299
319	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
320	}	301	}
321		302
322	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
323	{	311	{
324	MAGIC *mg;	312	MAGIC *mg;
325		313
326	if (!SvROK (sv)	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
327	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
328	&& SvSTASH (SvRV (sv)) != aio_req_stash	317	&& SvSTASH (SvRV (sv)) != aio_req_stash
329	&& !sv_derived_from (sv, "IO::AIO::REQ")))	318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
330	croak ("object of class IO::AIO::REQ expected");	319	croak ("object of class IO::AIO::REQ expected");
331		320
332	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
333		322
334	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
335	}	324	}
336		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
337	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
338	{	339	{
339	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
340	{	341	{
341	dSP;	342	dSP;
342		343
…		…
350	FREETMPS;	351	FREETMPS;
351	LEAVE;	352	LEAVE;
352	}	353	}
353	}	354	}
354		355
		356	static void
355	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
356	{	358	{
357	eio_submit (req);	359	eio_submit (req);
358		360
359	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
360	{	362	{
…		…
367	PUTBACK;	369	PUTBACK;
368	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
369	}	371	}
370	}	372	}
371		373
		374	static int
372	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
373	{	376	{
374	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
375	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
376		379
377	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
…		…
398	SvREADONLY_on (sv_result);	401	SvREADONLY_on (sv_result);
399	}	402	}
400		403
401	switch (req->type)	404	switch (req->type)
402	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
403	case EIO_READDIR:	410	case EIO_READDIR:
404	{	411	{
405	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
406		413
407	if (req->result >= 0)	414	if (req->result >= 0)
…		…
495	case EIO_STATVFS:	502	case EIO_STATVFS:
496	case EIO_FSTATVFS:	503	case EIO_FSTATVFS:
497	{	504	{
498	SV *rv = &PL_sv_undef;	505	SV *rv = &PL_sv_undef;
499		506
		507	#ifndef _WIN32
500	if (req->result >= 0)	508	if (req->result >= 0)
501	{	509	{
502	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
503	HV *hv = newHV ();	511	HV *hv = newHV ();
504		512
…		…
514	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	522	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
515	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	523	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
516	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	524	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
517	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	525	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
518	}	526	}
		527	#endif
519		528
520	PUSHs (rv);	529	PUSHs (rv);
521	}	530	}
522		531
523	break;	532	break;
…		…
539	case EIO_NOP:	548	case EIO_NOP:
540	case EIO_BUSY:	549	case EIO_BUSY:
541	break;	550	break;
542		551
543	case EIO_READLINK:	552	case EIO_READLINK:
		553	case EIO_REALPATH:
544	if (req->result > 0)	554	if (req->result > 0)
545	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	555	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
546	break;	556	break;
547		557
548	case EIO_STAT:	558	case EIO_STAT:
549	case EIO_LSTAT:	559	case EIO_LSTAT:
550	case EIO_FSTAT:	560	case EIO_FSTAT:
551	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	561	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		562
552	PL_laststatval = req->result;	563	if (!(PL_laststatval = req->result))
		564	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
553	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	565	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		566
554	PUSHs (sv_result);	567	PUSHs (sv_result);
		568	break;
		569
		570	case EIO_SEEK:
		571	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
555	break;	572	break;
556		573
557	case EIO_READ:	574	case EIO_READ:
558	{	575	{
559	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	576	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
562	SvSETMAGIC (req->sv2);	579	SvSETMAGIC (req->sv2);
563	PUSHs (sv_result);	580	PUSHs (sv_result);
564	}	581	}
565	break;	582	break;
566		583
		584	case EIO_CUSTOM:
		585	if (req->feed == fiemap)
		586	{
		587	#if HAVE_FIEMAP
		588	if (!req->result)
		589	{
		590	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		591
		592	if (fiemap->fm_extent_count)
		593	{
		594	AV *av = newAV ();
		595	int i;
		596
		597	while (fiemap->fm_mapped_extents)
		598	{
		599	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		600	AV *ext_av = newAV ();
		601
		602	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		603	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		604	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		605	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		606
		607	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		608	}
		609
		610	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		611	}
		612	else
		613	{
		614	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		615	PUSHs (sv_result);
		616	}
		617	}
		618	#endif
		619	}
		620	else
		621	PUSHs (sv_result);
		622	break;
		623
567	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
568	if (req->result > 0)	625	if (req->result > 0)
569	SvIV_set (sv_result, 0);	626	SvIV_set (sv_result, 0);
570	/* FALLTHROUGH */	627	/* FALLTHROUGH */
571		628
…		…
592	}	649	}
593		650
594	return !!SvTRUE (ERRSV);	651	return !!SvTRUE (ERRSV);
595	}	652	}
596		653
		654	static void
597	static void req_destroy (aio_req req)	655	req_destroy (aio_req req)
598	{	656	{
599	if (req->self)	657	if (req->self)
600	{	658	{
601	sv_unmagic (req->self, PERL_MAGIC_ext);	659	sv_unmagic (req->self, PERL_MAGIC_ext);
602	SvREFCNT_dec (req->self);	660	SvREFCNT_dec (req->self);
603	}	661	}
604		662
605	SvREFCNT_dec (req->sv1);	663	SvREFCNT_dec (req->sv1);
606	SvREFCNT_dec (req->sv2);	664	SvREFCNT_dec (req->sv2);
		665	SvREFCNT_dec (req->sv3);
		666	SvREFCNT_dec (req->sv4);
607	SvREFCNT_dec (req->callback);	667	SvREFCNT_dec (req->callback);
608		668
609	Safefree (req);	669	free (req);
610	}	670	}
611		671
		672	static void
612	static void req_cancel_subs (aio_req grp)	673	req_cancel_subs (aio_req grp)
613	{	674	{
614	aio_req sub;
615
616	if (grp->type != EIO_GROUP)	675	if (grp->type != EIO_GROUP)
617	return;	676	return;
618		677
619	SvREFCNT_dec (grp->sv2);	678	SvREFCNT_dec (grp->sv2);
620	grp->sv2 = 0;	679	grp->sv2 = 0;
621		680
622	eio_grp_cancel (grp);	681	eio_grp_cancel (grp);
623	}	682	}
624		683
625	static void	684	static void ecb_cold
626	create_respipe (void)	685	create_respipe (void)
627	{	686	{
628	if (s_epipe_renew (&respipe))	687	if (s_epipe_renew (&respipe))
629	croak ("IO::AIO: unable to initialize result pipe");	688	croak ("IO::AIO: unable to initialize result pipe");
630	}	689	}
631		690
632	static void poll_wait (void)	691	static void
		692	poll_wait (void)
633	{	693	{
634	while (eio_nreqs ())	694	while (eio_nreqs ())
635	{	695	{
636	int size;	696	int size;
637		697
…		…
646		706
647	s_epipe_wait (&respipe);	707	s_epipe_wait (&respipe);
648	}	708	}
649	}	709	}
650		710
651	static int poll_cb (void)	711	static int
		712	poll_cb (void)
652	{	713	{
653	for (;;)	714	for (;;)
654	{	715	{
655	int res = eio_poll ();	716	int res = eio_poll ();
656		717
…		…
662		723
663	poll_wait ();	724	poll_wait ();
664	}	725	}
665	}	726	}
666		727
667	static void atfork_child (void)	728	static void ecb_cold
		729	reinit (void)
668	{	730	{
669	create_respipe ();	731	create_respipe ();
		732
		733	if (eio_init (want_poll, done_poll) < 0)
		734	croak ("IO::AIO: unable to initialise eio library");
670	}	735	}
671		736
672	/*****************************************************************************/	737	/*****************************************************************************/
673		738
674	#if !_POSIX_MAPPED_FILES	739	#if !_POSIX_MAPPED_FILES
675	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
676	# define munmap(addr,length) (errno = ENOSYS, -1)	741	# define munmap(addr,length) EIO_ENOSYS ()
677	#endif	742	#endif
678		743
679	#if !_POSIX_MEMORY_PROTECTION	744	#if !_POSIX_MEMORY_PROTECTION
680	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	745	# define mprotect(addr,len,prot) EIO_ENOSYS ()
681	# define PROT_NONE 0	746	# define PROT_NONE 0
682	# define PROT_WRITE 0	747	# define PROT_WRITE 0
683	# define MAP_PRIVATE 0	748	# define MAP_PRIVATE 0
684	# define MAP_SHARED 0	749	# define MAP_SHARED 0
685	# define MAP_FIXED 0	750	# define MAP_FIXED 0
686	#endif	751	#endif
687		752
688	#define MMAP_MAGIC PERL_MAGIC_ext	753	#define MMAP_MAGIC PERL_MAGIC_ext
689		754
690	static int	755	static int ecb_cold
691	mmap_free (pTHX_ SV *sv, MAGIC *mg)	756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
692	{	757	{
693	int old_errno = errno;	758	int old_errno = errno;
694	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
695	errno = old_errno;	760	errno = old_errno;
…		…
719	{	784	{
720	SvGETMAGIC (cb_sv);	785	SvGETMAGIC (cb_sv);
721	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	786	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
722	}	787	}
723		788
		789	static aio_req ecb_noinline
		790	dreq (SV *callback)
		791	{
		792	SV *cb_cv;
		793	aio_req req;
		794	int req_pri = next_pri;
		795	next_pri = EIO_PRI_DEFAULT;
		796
		797	cb_cv = get_cb (callback);
		798
		799	req = calloc (sizeof (*req), 1);
		800	if (!req)
		801	croak ("out of memory during eio_req allocation");
		802
		803	req->callback = SvREFCNT_inc (cb_cv);
		804	req->pri = req_pri;
		805
		806	return req;
		807	}
		808
724	#define dREQ \	809	#define dREQ \
725	SV *cb_cv; \	810	aio_req req = dreq (callback); \
726	aio_req req; \
727	int req_pri = next_pri; \
728	next_pri = EIO_PRI_DEFAULT; \
729	\
730	cb_cv = get_cb (callback); \
731	\
732	Newz (0, req, 1, eio_req); \
733	if (!req) \
734	croak ("out of memory during eio_req allocation"); \
735	\
736	req->callback = SvREFCNT_inc (cb_cv); \
737	req->pri = req_pri
738		811
739	#define REQ_SEND \	812	#define REQ_SEND \
740	PUTBACK; \	813	PUTBACK; \
741	req_submit (req); \	814	req_submit (req); \
742	SPAGAIN; \	815	SPAGAIN; \
743	\	816	\
744	if (GIMME_V != G_VOID) \	817	if (GIMME_V != G_VOID) \
745	XPUSHs (req_sv (req, aio_req_stash));	818	XPUSHs (req_sv (req, aio_req_stash));
746		819
		820	ecb_inline void
		821	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		822	{
		823	if (expect_false (SvROK (path)))
		824	{
		825	SV *rv = SvRV (path);
		826	SV *wdob;
		827
		828	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		829	{
		830	path = AvARRAY (rv)[1];
		831	wdob = AvARRAY (rv)[0];
		832
		833	if (SvOK (wdob))
		834	{
		835	*wd = SvAIO_WD (wdob);
		836	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		837	}
		838	else
		839	*wd = EIO_INVALID_WD;
		840	}
		841	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		842	{
		843	*wd = (aio_wd)(long)SvIVX (rv);
		844	*wdsv = SvREFCNT_inc_NN (rv);
		845	*ptr = ".";
		846	return; /* path set to "." */
		847	}
		848	else
		849	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		850	}
		851
		852	*pathsv = newSVsv (path);
		853	*ptr = SvPVbyte_nolen (*pathsv);
		854	}
		855
		856	static void ecb_noinline
		857	req_set_path1 (aio_req req, SV *path)
		858	{
		859	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		864	{
		865	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		866
		867	switch (SvTYPE (rv))
		868	{
		869	case SVt_PVIO:
		870	case SVt_PVLV:
		871	case SVt_PVGV:
		872	req->type = type_fh;
		873	req->sv1 = newSVsv (fh_or_path);
		874	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		875	break;
		876
		877	default:
		878	req->type = type_path;
		879	req_set_path1 (req, fh_or_path);
		880	break;
		881	}
		882	}
		883
		884	XS(boot_IO__AIO) ecb_cold;
		885
747	MODULE = IO::AIO PACKAGE = IO::AIO	886	MODULE = IO::AIO PACKAGE = IO::AIO
748		887
749	PROTOTYPES: ENABLE	888	PROTOTYPES: ENABLE
750		889
751	BOOT:	890	BOOT:
…		…
755	IV iv;	894	IV iv;
756	} *civ, const_iv[] = {	895	} *civ, const_iv[] = {
757	# define const_niv(name, value) { # name, (IV) value },	896	# define const_niv(name, value) { # name, (IV) value },
758	# define const_iv(name) { # name, (IV) name },	897	# define const_iv(name) { # name, (IV) name },
759	# define const_eio(name) { # name, (IV) EIO_ ## name },	898	# define const_eio(name) { # name, (IV) EIO_ ## name },
		899
		900	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		901
		902	const_iv (ENOSYS)
760	const_iv (EXDEV)	903	const_iv (EXDEV)
761	const_iv (ENOSYS)	904	const_iv (EBADR)
		905
762	const_iv (O_RDONLY)	906	const_iv (O_RDONLY)
763	const_iv (O_WRONLY)	907	const_iv (O_WRONLY)
764	const_iv (O_RDWR)	908	const_iv (O_RDWR)
765	const_iv (O_CREAT)	909	const_iv (O_CREAT)
766	const_iv (O_TRUNC)	910	const_iv (O_TRUNC)
767	const_iv (O_EXCL)	911	const_iv (O_EXCL)
768	const_iv (O_APPEND)	912	const_iv (O_APPEND)
		913
		914	const_iv (O_ASYNC)
		915	const_iv (O_DIRECT)
		916	const_iv (O_NOATIME)
		917
		918	const_iv (O_CLOEXEC)
		919	const_iv (O_NOCTTY)
		920	const_iv (O_NOFOLLOW)
		921	const_iv (O_NONBLOCK)
		922	const_iv (O_EXEC)
		923	const_iv (O_SEARCH)
		924	const_iv (O_DIRECTORY)
		925	const_iv (O_DSYNC)
		926	const_iv (O_RSYNC)
		927	const_iv (O_SYNC)
		928	const_iv (O_TTY_INIT)
769		929
770	const_iv (S_IFIFO)	930	const_iv (S_IFIFO)
771	const_iv (S_IFCHR)	931	const_iv (S_IFCHR)
772	const_iv (S_IFBLK)	932	const_iv (S_IFBLK)
773	const_iv (S_IFLNK)	933	const_iv (S_IFLNK)
…		…
818	const_iv (MAP_LOCKED)	978	const_iv (MAP_LOCKED)
819	const_iv (MAP_NORESERVE)	979	const_iv (MAP_NORESERVE)
820	const_iv (MAP_POPULATE)	980	const_iv (MAP_POPULATE)
821	const_iv (MAP_NONBLOCK)	981	const_iv (MAP_NONBLOCK)
822		982
		983	const_iv (FIEMAP_FLAG_SYNC)
		984	const_iv (FIEMAP_FLAG_XATTR)
		985	const_iv (FIEMAP_FLAGS_COMPAT)
		986	const_iv (FIEMAP_EXTENT_LAST)
		987	const_iv (FIEMAP_EXTENT_UNKNOWN)
		988	const_iv (FIEMAP_EXTENT_DELALLOC)
		989	const_iv (FIEMAP_EXTENT_ENCODED)
		990	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		991	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		992	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		993	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		994	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		995	const_iv (FIEMAP_EXTENT_MERGED)
		996	const_iv (FIEMAP_EXTENT_SHARED)
		997
		998	const_iv (SPLICE_F_MOVE)
		999	const_iv (SPLICE_F_NONBLOCK)
		1000	const_iv (SPLICE_F_MORE)
		1001	const_iv (SPLICE_F_GIFT)
		1002
		1003	const_iv (SEEK_DATA)
		1004	const_iv (SEEK_HOLE)
		1005
		1006	/* libeio constants */
		1007	const_eio (SEEK_SET)
		1008	const_eio (SEEK_CUR)
		1009	const_eio (SEEK_END)
		1010
823	const_eio (MCL_FUTURE)	1011	const_eio (MCL_FUTURE)
824	const_eio (MCL_CURRENT)	1012	const_eio (MCL_CURRENT)
825		1013
826	const_eio (MS_ASYNC)	1014	const_eio (MS_ASYNC)
827	const_eio (MS_INVALIDATE)	1015	const_eio (MS_INVALIDATE)
…		…
830	const_eio (MT_MODIFY)	1018	const_eio (MT_MODIFY)
831		1019
832	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1020	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
833	const_eio (SYNC_FILE_RANGE_WRITE)	1021	const_eio (SYNC_FILE_RANGE_WRITE)
834	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1023
		1024	const_eio (FALLOC_FL_KEEP_SIZE)
		1025	const_eio (FALLOC_FL_PUNCH_HOLE)
835		1026
836	const_eio (READDIR_DENTS)	1027	const_eio (READDIR_DENTS)
837	const_eio (READDIR_DIRS_FIRST)	1028	const_eio (READDIR_DIRS_FIRST)
838	const_eio (READDIR_STAT_ORDER)	1029	const_eio (READDIR_STAT_ORDER)
839	const_eio (READDIR_FOUND_UNKNOWN)	1030	const_eio (READDIR_FOUND_UNKNOWN)
…		…
850	};	1041	};
851		1042
852	aio_stash = gv_stashpv ("IO::AIO" , 1);	1043	aio_stash = gv_stashpv ("IO::AIO" , 1);
853	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1044	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
854	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1045	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1046	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
855		1047
856	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
857	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
858		1050
859	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
860		1052
861	create_respipe ();	1053	reinit ();
862
863	if (eio_init (want_poll, done_poll) < 0)
864	croak ("IO::AIO: unable to initialise eio library");
865
866	/* atfork child called in fifo order, so before eio's handler */
867	X_THREAD_ATFORK (0, 0, atfork_child);
868	}	1054	}
		1055
		1056	void
		1057	reinit ()
		1058	PROTOTYPE:
869		1059
870	void	1060	void
871	max_poll_reqs (unsigned int nreqs)	1061	max_poll_reqs (unsigned int nreqs)
872	PROTOTYPE: $	1062	PROTOTYPE: $
873	CODE:	1063	CODE:
…		…
908	PROTOTYPE: $	1098	PROTOTYPE: $
909	CODE:	1099	CODE:
910	max_outstanding = maxreqs;	1100	max_outstanding = maxreqs;
911		1101
912	void	1102	void
		1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1104	PPCODE:
		1105	{
		1106	dREQ;
		1107
		1108	req->type = EIO_WD_OPEN;
		1109	req_set_path1 (req, pathname);
		1110
		1111	REQ_SEND;
		1112	}
		1113
		1114	void
913	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
914	PPCODE:	1116	PPCODE:
915	{	1117	{
916	dREQ;	1118	dREQ;
917		1119
918	req->type = EIO_OPEN;	1120	req->type = EIO_OPEN;
919	req->sv1 = newSVsv (pathname);	1121	req_set_path1 (req, pathname);
920	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	req->int1 = flags;	1122	req->int1 = flags;
922	req->int2 = mode;	1123	req->int2 = mode;
923		1124
924	REQ_SEND;	1125	REQ_SEND;
925	}	1126	}
…		…
927	void	1128	void
928	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
929	ALIAS:	1130	ALIAS:
930	aio_fsync = EIO_FSYNC	1131	aio_fsync = EIO_FSYNC
931	aio_fdatasync = EIO_FDATASYNC	1132	aio_fdatasync = EIO_FDATASYNC
		1133	aio_syncfs = EIO_SYNCFS
932	PPCODE:	1134	PPCODE:
933	{	1135	{
934	int fd = s_fileno_croak (fh, 0);	1136	int fd = s_fileno_croak (fh, 0);
935	dREQ;	1137	dREQ;
936		1138
937	req->type = ix;	1139	req->type = ix;
938	req->sv1 = newSVsv (fh);	1140	req->sv1 = newSVsv (fh);
939	req->int1 = fd;	1141	req->int1 = fd;
940		1142
941	REQ_SEND (req);	1143	REQ_SEND;
942	}	1144	}
943		1145
944	void	1146	void
945	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
946	PPCODE:	1148	PPCODE:
947	{	1149	{
948	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
949	dREQ;	1151	dREQ;
950		1152
951	req->type = EIO_SYNC_FILE_RANGE;	1153	req->type = EIO_SYNC_FILE_RANGE;
952	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
953	req->int1 = fd;	1155	req->int1 = fd;
954	req->offs = offset;	1156	req->offs = offset;
955	req->size = nbytes;	1157	req->size = nbytes;
956	req->int2 = flags;	1158	req->int2 = flags;
957		1159
958	REQ_SEND (req);	1160	REQ_SEND;
		1161	}
		1162
		1163	void
		1164	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1165	PPCODE:
		1166	{
		1167	int fd = s_fileno_croak (fh, 0);
		1168	dREQ;
		1169
		1170	req->type = EIO_FALLOCATE;
		1171	req->sv1 = newSVsv (fh);
		1172	req->int1 = fd;
		1173	req->int2 = mode;
		1174	req->offs = offset;
		1175	req->size = len;
		1176
		1177	REQ_SEND;
959	}	1178	}
960		1179
961	void	1180	void
962	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)
963	PPCODE:	1182	PPCODE:
964	{	1183	{
965	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
966	int fd = s_fileno_croak (fh, 0);	1185	int fd = s_fileno_croak (fh, 0);
967	dREQ;	1186	dREQ;
968		1187
969	if (close_pipe < 0)	1188	if (expect_false (close_fd < 0))
970	{	1189	{
971	int pipefd [2];	1190	int pipefd [2];
972		1191
		1192	if (
		1193	#ifdef _WIN32
		1194	_pipe (pipefd, 1, _O_BINARY) < 0
		1195	#else
973	if (pipe (pipefd) < 0	1196	pipe (pipefd) < 0
974	|| close (pipefd [1]) < 0
975	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1197	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1198	#endif
		1199	|| close (pipefd [1]) < 0
		1200	)
976	abort (); /*D*/	1201	abort (); /*D*/
977		1202
978	close_pipe = pipefd [0];	1203	close_fd = pipefd [0];
979	}	1204	}
980		1205
981	req->type = EIO_DUP2;	1206	req->type = EIO_DUP2;
982	req->int1 = close_pipe;	1207	req->int1 = close_fd;
983	req->sv2 = newSVsv (fh);	1208	req->sv2 = newSVsv (fh);
984	req->int2 = fd;	1209	req->int2 = fd;
985		1210
986	REQ_SEND (req);	1211	REQ_SEND;
		1212	}
		1213
		1214	void
		1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1216	PPCODE:
		1217	{
		1218	int fd = s_fileno_croak (fh, 0);
		1219	dREQ;
		1220
		1221	req->type = EIO_SEEK;
		1222	req->sv1 = newSVsv (fh);
		1223	req->int1 = fd;
		1224	req->offs = SvVAL64 (offset);
		1225	req->int2 = whence;
		1226
		1227	REQ_SEND;
987	}	1228	}
988		1229
989	void	1230	void
990	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
991	ALIAS:	1232	ALIAS:
…		…
1012	}	1253	}
1013	else	1254	else
1014	{	1255	{
1015	/* read: check type and grow scalar as necessary */	1256	/* read: check type and grow scalar as necessary */
1016	SvUPGRADE (data, SVt_PV);	1257	SvUPGRADE (data, SVt_PV);
		1258	if (SvLEN (data) >= SvCUR (data))
1017	svptr = SvGROW (data, len + dataoffset + 1);	1259	svptr = SvGROW (data, len + dataoffset + 1);
		1260	else if (SvCUR (data) < len + dataoffset)
		1261	croak ("length + dataoffset outside of scalar, and cannot grow");
1018	}	1262	}
1019		1263
1020	{	1264	{
1021	dREQ;	1265	dREQ;
1022		1266
…		…
1038	REQ_SEND;	1282	REQ_SEND;
1039	}	1283	}
1040	}	1284	}
1041		1285
1042	void	1286	void
1043	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
		1288	ALIAS:
		1289	aio_readlink = EIO_READLINK
		1290	aio_realpath = EIO_REALPATH
1044	PPCODE:	1291	PPCODE:
1045	{	1292	{
1046	SV *data;
1047	dREQ;	1293	dREQ;
1048		1294
1049	req->type = EIO_READLINK;	1295	req->type = ix;
1050	req->sv1 = newSVsv (path);	1296	req_set_path1 (req, pathname);
1051	req->ptr1 = SvPVbyte_nolen (req->sv1);
1052		1297
1053	REQ_SEND;	1298	REQ_SEND;
1054	}	1299	}
1055		1300
1056	void	1301	void
1057	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1058	PPCODE:	1303	PPCODE:
1059	{	1304	{
1060	int ifd = s_fileno_croak (in_fh , 0);	1305	int ifd = s_fileno_croak (in_fh , 0);
1061	int ofd = s_fileno_croak (out_fh, 1);	1306	int ofd = s_fileno_croak (out_fh, 1);
1062	dREQ;	1307	dREQ;
1063		1308
1064	req->type = EIO_SENDFILE;	1309	req->type = EIO_SENDFILE;
1065	req->sv1 = newSVsv (out_fh);	1310	req->sv1 = newSVsv (out_fh);
1066	req->int1 = ofd;	1311	req->int1 = ofd;
…		…
1074		1319
1075	void	1320	void
1076	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1077	PPCODE:	1322	PPCODE:
1078	{	1323	{
1079	int fd = s_fileno_croak (fh, 0);	1324	int fd = s_fileno_croak (fh, 0);
1080	dREQ;	1325	dREQ;
1081		1326
1082	req->type = EIO_READAHEAD;	1327	req->type = EIO_READAHEAD;
1083	req->sv1 = newSVsv (fh);	1328	req->sv1 = newSVsv (fh);
1084	req->int1 = fd;	1329	req->int1 = fd;
…		…
1096	aio_statvfs = EIO_STATVFS	1341	aio_statvfs = EIO_STATVFS
1097	PPCODE:	1342	PPCODE:
1098	{	1343	{
1099	dREQ;	1344	dREQ;
1100		1345
1101	req->sv1 = newSVsv (fh_or_path);	1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1102
1103	if (SvPOK (req->sv1))
1104	{
1105	req->type = ix;
1106	req->ptr1 = SvPVbyte_nolen (req->sv1);
1107	}
1108	else
1109	{
1110	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1111	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1112	}
1113		1347
1114	REQ_SEND;	1348	REQ_SEND;
1115	}	1349	}
1116		1350
1117	UV	1351	UV
…		…
1136	{	1370	{
1137	dREQ;	1371	dREQ;
1138		1372
1139	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1140	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1374	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1141	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1142
1143	if (SvPOK (req->sv1))
1144	{
1145	req->type = EIO_UTIME;
1146	req->ptr1 = SvPVbyte_nolen (req->sv1);
1147	}
1148	else
1149	{
1150	req->type = EIO_FUTIME;
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
1158	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1159	PPCODE:	1382	PPCODE:
1160	{	1383	{
1161	dREQ;	1384	dREQ;
1162		1385
1163	req->sv1 = newSVsv (fh_or_path);
1164	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1165		1387	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1166	if (SvPOK (req->sv1))
1167	{
1168	req->type = EIO_TRUNCATE;
1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
1170	}
1171	else
1172	{
1173	req->type = EIO_FTRUNCATE;
1174	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1175	}
1176		1388
1177	REQ_SEND;	1389	REQ_SEND;
1178	}	1390	}
1179		1391
1180	void	1392	void
1181	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1182	ALIAS:
1183	aio_chmod = EIO_CHMOD
1184	aio_mkdir = EIO_MKDIR
1185	PPCODE:	1394	PPCODE:
1186	{	1395	{
1187	dREQ;	1396	dREQ;
1188		1397
1189	req->int2 = mode;	1398	req->int2 = mode;
1190	req->sv1 = newSVsv (fh_or_path);	1399	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1191
1192	if (SvPOK (req->sv1))
1193	{
1194	req->type = ix;
1195	req->ptr1 = SvPVbyte_nolen (req->sv1);
1196	}
1197	else
1198	{
1199	req->type = EIO_FCHMOD;
1200	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1201	}
1202		1400
1203	REQ_SEND;	1401	REQ_SEND;
1204	}	1402	}
1205		1403
1206	void	1404	void
…		…
1209	{	1407	{
1210	dREQ;	1408	dREQ;
1211		1409
1212	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1213	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1411	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1214	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1215
1216	if (SvPOK (req->sv1))
1217	{
1218	req->type = EIO_CHOWN;
1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
1220	}
1221	else
1222	{
1223	req->type = EIO_FCHOWN;
1224	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1225	}
1226		1413
1227	REQ_SEND;	1414	REQ_SEND;
1228	}	1415	}
1229		1416
1230	void	1417	void
…		…
1232	PPCODE:	1419	PPCODE:
1233	{	1420	{
1234	dREQ;	1421	dREQ;
1235		1422
1236	req->type = EIO_READDIR;	1423	req->type = EIO_READDIR;
1237	req->sv1 = newSVsv (pathname);
1238	req->ptr1 = SvPVbyte_nolen (req->sv1);
1239	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1424	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1240		1425
1241	if (flags & EIO_READDIR_DENTS)	1426	if (flags & EIO_READDIR_DENTS)
1242	req->int1 |= EIO_READDIR_CUSTOM2;	1427	req->int1 |= EIO_READDIR_CUSTOM2;
1243		1428
		1429	req_set_path1 (req, pathname);
		1430
1244	REQ_SEND;	1431	REQ_SEND;
		1432	}
		1433
		1434	void
		1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	dREQ;
		1439
		1440	req->type = EIO_MKDIR;
		1441	req->int2 = mode;
		1442	req_set_path1 (req, pathname);
		1443
		1444	REQ_SEND;
1245	}	1445	}
1246		1446
1247	void	1447	void
1248	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1249	ALIAS:	1449	ALIAS:
…		…
1253	PPCODE:	1453	PPCODE:
1254	{	1454	{
1255	dREQ;	1455	dREQ;
1256		1456
1257	req->type = ix;	1457	req->type = ix;
1258	req->sv1 = newSVsv (pathname);	1458	req_set_path1 (req, pathname);
1259	req->ptr1 = SvPVbyte_nolen (req->sv1);
1260		1459
1261	REQ_SEND;	1460	REQ_SEND;
1262	}	1461	}
1263		1462
1264	void	1463	void
…		…
1267	aio_link = EIO_LINK	1466	aio_link = EIO_LINK
1268	aio_symlink = EIO_SYMLINK	1467	aio_symlink = EIO_SYMLINK
1269	aio_rename = EIO_RENAME	1468	aio_rename = EIO_RENAME
1270	PPCODE:	1469	PPCODE:
1271	{	1470	{
		1471	eio_wd wd2 = 0;
1272	dREQ;	1472	dREQ;
1273		1473
1274	req->type = ix;	1474	req->type = ix;
1275	req->sv1 = newSVsv (oldpath);	1475	req_set_path1 (req, oldpath);
1276	req->ptr1 = SvPVbyte_nolen (req->sv1);	1476	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1277	req->sv2 = newSVsv (newpath);	1477	req->int3 = (long)wd2;
1278	req->ptr2 = SvPVbyte_nolen (req->sv2);
1279		1478
1280	REQ_SEND;	1479	REQ_SEND;
1281	}	1480	}
1282		1481
1283	void	1482	void
…		…
1285	PPCODE:	1484	PPCODE:
1286	{	1485	{
1287	dREQ;	1486	dREQ;
1288		1487
1289	req->type = EIO_MKNOD;	1488	req->type = EIO_MKNOD;
1290	req->sv1 = newSVsv (pathname);
1291	req->ptr1 = SvPVbyte_nolen (req->sv1);
1292	req->int2 = (mode_t)mode;	1489	req->int2 = (mode_t)mode;
1293	req->offs = dev;	1490	req->offs = dev;
		1491	req_set_path1 (req, pathname);
1294		1492
1295	REQ_SEND;	1493	REQ_SEND;
1296	}	1494	}
1297		1495
1298	void	1496	void
…		…
1365		1563
1366	req->type = EIO_MLOCKALL;	1564	req->type = EIO_MLOCKALL;
1367	req->int1 = flags;	1565	req->int1 = flags;
1368		1566
1369	REQ_SEND;	1567	REQ_SEND;
		1568	}
		1569
		1570	void
		1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1572	PPCODE:
		1573	{
		1574	int fd = s_fileno_croak (fh, 0);
		1575	dREQ;
		1576
		1577	req->type = EIO_CUSTOM;
		1578	req->sv1 = newSVsv (fh);
		1579	req->int1 = fd;
		1580
		1581	req->feed = fiemap;
		1582	#if HAVE_FIEMAP
		1583	/* keep our fingers crossed that the next two types are 64 bit */
		1584	req->offs = start;
		1585	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1586	req->int2 = flags;
		1587	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1588	#endif
		1589
		1590	REQ_SEND;
1370	}	1591	}
1371		1592
1372	void	1593	void
1373	aio_busy (double delay, SV *callback=&PL_sv_undef)	1594	aio_busy (double delay, SV *callback=&PL_sv_undef)
1374	PPCODE:	1595	PPCODE:
…		…
1498	CODE:	1719	CODE:
1499	RETVAL = posix_fadvise (fh, offset, length, advice);	1720	RETVAL = posix_fadvise (fh, offset, length, advice);
1500	OUTPUT:	1721	OUTPUT:
1501	RETVAL	1722	RETVAL
1502		1723
1503	ssize_t	1724	IV
1504	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1725	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1505	CODE:	1726	CODE:
1506	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1507	OUTPUT:	1728	OUTPUT:
1508	RETVAL	1729	RETVAL
1509		1730
1510	void	1731	void
1511	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1512	PPCODE:	1733	PPCODE:
1513	sv_unmagic (scalar, MMAP_MAGIC);	1734	sv_unmagic (scalar, MMAP_MAGIC);
1514	{	1735	{
1515	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1516	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1549	ALIAS:	1770	ALIAS:
1550	mprotect = 1	1771	mprotect = 1
1551	CODE:	1772	CODE:
1552	{	1773	{
1553	STRLEN svlen;	1774	STRLEN svlen;
1554	void *addr = SvPVbyte (scalar, svlen);	1775	void *addr = SvPVbyte (scalar, svlen);
1555	size_t len = SvUV (length);	1776	size_t len = SvUV (length);
1556		1777
1557	if (offset < 0)	1778	if (offset < 0)
1558	offset += svlen;	1779	offset += svlen;
1559		1780
…		…
1578	int	1799	int
1579	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1580	CODE:	1801	CODE:
1581	{	1802	{
1582	STRLEN svlen;	1803	STRLEN svlen;
1583	void *addr = SvPVbyte (scalar, svlen);	1804	void *addr = SvPVbyte (scalar, svlen);
1584	size_t len = SvUV (length);	1805	size_t len = SvUV (length);
1585		1806
1586	if (offset < 0)	1807	if (offset < 0)
1587	offset += svlen;	1808	offset += svlen;
1588		1809
…		…
1595	addr = (void *)(((intptr_t)addr) + offset);	1816	addr = (void *)(((intptr_t)addr) + offset);
1596	eio_page_align (&addr, &len);	1817	eio_page_align (&addr, &len);
1597	#if _POSIX_MEMLOCK_RANGE	1818	#if _POSIX_MEMLOCK_RANGE
1598	RETVAL = munlock (addr, len);	1819	RETVAL = munlock (addr, len);
1599	#else	1820	#else
1600	RETVAL = ((errno = ENOSYS), -1);	1821	RETVAL = EIO_ENOSYS ();
1601	#endif	1822	#endif
1602	}	1823	}
1603	OUTPUT:	1824	OUTPUT:
1604	RETVAL	1825	RETVAL
1605		1826
…		…
1607	munlockall ()	1828	munlockall ()
1608	CODE:	1829	CODE:
1609	#if _POSIX_MEMLOCK	1830	#if _POSIX_MEMLOCK
1610	munlockall ();	1831	munlockall ();
1611	#else	1832	#else
1612	RETVAL = -1;	1833	RETVAL = EIO_ENOSYS ();
1613	errno = ENOSYS;
1614	#endif	1834	#endif
1615	OUTPUT:	1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1840	CODE:
		1841	{
		1842	#if HAVE_LINUX_SPLICE
		1843	loff_t off_in_, off_out_;
		1844	RETVAL = splice (
		1845	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1846	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1847	length, flags
		1848	);
		1849	#else
		1850	RETVAL = EIO_ENOSYS ();
		1851	#endif
		1852	}
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int
		1857	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1858	CODE:
		1859	#if HAVE_LINUX_SPLICE
		1860	RETVAL = tee (rfh, wfh, length, flags);
		1861	#else
		1862	RETVAL = EIO_ENOSYS ();
		1863	#endif
		1864	OUTPUT:
1616	RETVAL	1865	RETVAL
1617		1866
1618	void _on_next_submit (SV *cb)	1867	void _on_next_submit (SV *cb)
1619	CODE:	1868	CODE:
1620	SvREFCNT_dec (on_next_submit);	1869	SvREFCNT_dec (on_next_submit);
1621	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1622		1871
1623	PROTOTYPES: DISABLE	1872	PROTOTYPES: DISABLE
1624		1873
		1874	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1875
		1876	BOOT:
		1877	{
		1878	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1879	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1880	}
		1881
		1882	void
		1883	DESTROY (SV *self)
		1884	CODE:
		1885	{
		1886	aio_wd wd = SvAIO_WD (self);
		1887	#if HAVE_AT
		1888	{
		1889	SV *callback = &PL_sv_undef;
		1890	dREQ; /* clobbers next_pri :/ */
		1891	next_pri = req->pri; /* restore next_pri */
		1892	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1893	req->type = EIO_WD_CLOSE;
		1894	req->wd = wd;
		1895	REQ_SEND;
		1896	}
		1897	#else
		1898	eio_wd_close_sync (wd);
		1899	#endif
		1900	}
		1901
1625	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1902	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1626		1903
1627	void	1904	void
1628	cancel (aio_req_ornot req)	1905	cancel (aio_req_ornot req)
1629	CODE:	1906	CODE:

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