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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.185 by root, Thu Jul 7 22:36:18 2011 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_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	/* Linux/others */	122	static int req_invoke (eio_req *req);
127	#ifndef O_ASYNC	123	#define EIO_FINISH(req) req_invoke (req)
128	# define O_ASYNC 0	124	static void req_destroy (eio_req *grp);
129	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
130	#ifndef O_DIRECT
131	# define O_DIRECT 0
132	#endif
133	#ifndef O_NOATIME
134	# define O_NOATIME 0
135	#endif
136		126
137	/* POSIX */	127	#include "libeio/eio.c"
138	#ifndef O_CLOEXEC
139	# define O_CLOEXEC 0
140	#endif
141	#ifndef O_NOFOLLOW
142	# define O_NOFOLLOW 0
143	#endif
144	#ifndef O_NOCTTY
145	# define O_NOCTTY 0
146	#endif
147	#ifndef O_NONBLOCK
148	# define O_NONBLOCK 0
149	#endif
150	#ifndef O_EXEC
151	# define O_EXEC 0
152	#endif
153	#ifndef O_SEARCH
154	# define O_SEARCH 0
155	#endif
156	#ifndef O_DIRECTORY
157	# define O_DIRECTORY 0
158	#endif
159	#ifndef O_DSYNC
160	# define O_DSYNC 0
161	#endif
162	#ifndef O_RSYNC
163	# define O_RSYNC 0
164	#endif
165	#ifndef O_SYNC
166	# define O_SYNC 0
167	#endif
168	#ifndef O_TTY_INIT
169	# define O_TTY_INIT 0
170	#endif
171
172	#ifndef POSIX_FADV_NORMAL
173	# define POSIX_FADV_NORMAL 0
174	#endif
175	#ifndef POSIX_FADV_SEQUENTIAL
176	# define POSIX_FADV_SEQUENTIAL 0
177	#endif
178	#ifndef POSIX_FADV_RANDOM
179	# define POSIX_FADV_RANDOM 0
180	#endif
181	#ifndef POSIX_FADV_NOREUSE
182	# define POSIX_FADV_NOREUSE 0
183	#endif
184	#ifndef POSIX_FADV_WILLNEED
185	# define POSIX_FADV_WILLNEED 0
186	#endif
187	#ifndef POSIX_FADV_DONTNEED
188	# define POSIX_FADV_DONTNEED 0
189	#endif
190		128
191	#if !HAVE_POSIX_FADVISE	129	#if !HAVE_POSIX_FADVISE
192	# 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 */
193	#endif	131	#endif
194		132
195	#ifndef POSIX_MADV_NORMAL
196	# define POSIX_MADV_NORMAL 0
197	#endif
198	#ifndef POSIX_MADV_SEQUENTIAL
199	# define POSIX_MADV_SEQUENTIAL 0
200	#endif
201	#ifndef POSIX_MADV_RANDOM
202	# define POSIX_MADV_RANDOM 0
203	#endif
204	#ifndef POSIX_MADV_WILLNEED
205	# define POSIX_MADV_WILLNEED 0
206	#endif
207	#ifndef POSIX_MADV_DONTNEED
208	# define POSIX_MADV_DONTNEED 0
209	#endif
210
211	#if !HAVE_POSIX_MADVISE	133	#if !HAVE_POSIX_MADVISE
212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213	#endif
214
215	#ifndef PROT_NONE
216	# define PROT_NONE 0
217	#endif
218	#ifndef PROT_READ
219	# define PROT_READ 0
220	#endif
221	#ifndef PROT_WRITE
222	# define PROT_READ 0
223	#endif
224	#ifndef PROT_EXEC
225	# define PROT_EXEC 0
226	#endif
227
228	#ifndef ST_NODEV
229	# define ST_NODEV 0
230	#endif
231	#ifndef ST_NOEXEC
232	# define ST_NOEXEC 0
233	#endif
234	#ifndef ST_SYNCHRONOUS
235	# define ST_SYNCHRONOUS 0
236	#endif
237	#ifndef ST_MANDLOCK
238	# define ST_MANDLOCK 0
239	#endif
240	#ifndef ST_WRITE
241	# define ST_WRITE 0
242	#endif
243	#ifndef ST_APPEND
244	# define ST_APPEND 0
245	#endif
246	#ifndef ST_IMMUTABLE
247	# define ST_IMMUTABLE 0
248	#endif
249	#ifndef ST_NOATIME
250	# define ST_NOATIME 0
251	#endif
252	#ifndef ST_NODIRATIME
253	# define ST_NODIRATIME 0
254	#endif
255	#ifndef ST_RELATIME
256	# define ST_RELATIME 0
257	#endif
258
259	#ifndef S_IFIFO
260	# define S_IFIFO 0
261	#endif
262	#ifndef S_IFCHR
263	# define S_IFCHR 0
264	#endif
265	#ifndef S_IFBLK
266	# define S_IFBLK 0
267	#endif
268	#ifndef S_IFLNK
269	# define S_IFLNK 0
270	#endif
271	#ifndef S_IFREG
272	# define S_IFREG 0
273	#endif
274	#ifndef S_IFDIR
275	# define S_IFDIR 0
276	#endif
277	#ifndef S_IFWHT
278	# define S_IFWHT 0
279	#endif
280	#ifndef S_IFSOCK
281	# define S_IFSOCK 0
282	#endif	135	#endif
283		136
284	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
285	# ifdef MAP_ANON	138	# ifdef MAP_ANON
286	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
287	# else	140	# else
288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289	# endif	142	# endif
290	#endif	143	#endif
291	#ifndef MAP_HUGETLB	144
292	# define MAP_HUGETLB 0	145	/* defines all sorts of constants to 0 unless they are already defined */
293	#endif	146	#include "def0.h"
294	#ifndef MAP_LOCKED
295	# define MAP_LOCKED 0
296	#endif
297	#ifndef MAP_NORESERVE
298	# define MAP_NORESERVE 0
299	#endif
300	#ifndef MAP_POPULATE
301	# define MAP_POPULATE 0
302	#endif
303	#ifndef MAP_NONBLOCK
304	# define MAP_NONBLOCK 0
305	#endif
306		147
307	#ifndef makedev	148	#ifndef makedev
308	# define makedev(maj,min) (((maj) << 8) | (min))	149	# define makedev(maj,min) (((maj) << 8) | (min))
309	#endif	150	#endif
310	#ifndef major	151	#ifndef major
…		…
316		157
317	#ifndef PAGESIZE	158	#ifndef PAGESIZE
318	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
319	#endif	160	#endif
320		161
321	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
322	#define EIO_FINISH(req) req_invoke (req)	163
323	static void req_destroy (eio_req *grp);	164	static void
324	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_mapped_extents < count)
		200	/* either autosizing succeeded,
		201	* or the file had no extents
		202	* or we luckily had enough space */
		203	break;
		204
		205	/* some kernels overwrite fm_length, so just reset everything */
		206	fiemap->fm_start = req->offs;
		207	fiemap->fm_length = req->size;
		208	fiemap->fm_flags = req->int2;
		209	fiemap->fm_extent_count = 0;
		210
		211	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		212	return;
		213
		214	/* to work around a kernel bug, we allocate one more */
		215	count = fiemap->fm_mapped_extents + 1;
		216
		217	free (fiemap);
		218	}
		219
		220	req->result = 0;
		221
		222	#else
		223	errno = ENOSYS;
		224	#endif
		225	}
		226
		227	/*****************************************************************************/
325		228
326	enum {	229	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	230	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	231	};
329		232
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	233	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	234	typedef eio_req *aio_req_ornot;
		235	typedef eio_wd aio_wd;
334		236
335	static SV *on_next_submit;	237	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	238	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	239	static int max_outstanding;
338		240
339	static s_epipe respipe;	241	static s_epipe respipe;
340		242
341	static void req_destroy (aio_req req);	243	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	244	static void req_cancel (aio_req req);
343		245
344	static void want_poll (void)	246	static void
		247	want_poll (void)
345	{	248	{
346	/* write a dummy byte to the pipe so fh becomes ready */	249	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	250	s_epipe_signal (&respipe);
348	}	251	}
349		252
350	static void done_poll (void)	253	static void
		254	done_poll (void)
351	{	255	{
352	/* read any signals sent by the worker threads */	256	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	257	s_epipe_drain (&respipe);
354	}	258	}
355		259
356	/* must be called at most once */	260	/* must be called at most once */
		261	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	262	req_sv (aio_req req, HV *stash)
358	{	263	{
359	if (!req->self)	264	if (!req->self)
360	{	265	{
361	req->self = (SV *)newHV ();	266	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	267	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	268	}
364		269
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	270	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	271	}
367		272
368	static aio_req SvAIO_REQ (SV *sv)	273	static SV *
		274	newSVaio_wd (aio_wd wd)
		275	{
		276	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		277	}
		278
		279	static aio_req
		280	SvAIO_REQ (SV *sv)
369	{	281	{
370	MAGIC *mg;	282	MAGIC *mg;
371		283
372	if (!SvROK (sv)	284	if (!SvROK (sv)
		285	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	286	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	287	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	288	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	289	croak ("object of class IO::AIO::REQ expected");
377		290
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	291	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		292
380	return mg ? (aio_req)mg->mg_ptr : 0;	293	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	294	}
382		295
		296	static aio_wd
		297	SvAIO_WD (SV *sv)
		298	{
		299	if (!SvROK (sv)
		300	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		301	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		302	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		303
		304	return (aio_wd)(long)SvIVX (SvRV (sv));
		305	}
		306
		307	static void
383	static void aio_grp_feed (aio_req grp)	308	aio_grp_feed (aio_req grp)
384	{	309	{
385	if (grp->sv2 && SvOK (grp->sv2))	310	if (grp->sv2 && SvOK (grp->sv2))
386	{	311	{
387	dSP;	312	dSP;
388		313
…		…
396	FREETMPS;	321	FREETMPS;
397	LEAVE;	322	LEAVE;
398	}	323	}
399	}	324	}
400		325
		326	static void
401	static void req_submit (eio_req *req)	327	req_submit (eio_req *req)
402	{	328	{
403	eio_submit (req);	329	eio_submit (req);
404		330
405	if (expect_false (on_next_submit))	331	if (expect_false (on_next_submit))
406	{	332	{
…		…
413	PUTBACK;	339	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	340	call_sv (cb, G_DISCARD | G_EVAL);
415	}	341	}
416	}	342	}
417		343
		344	static int
418	static int req_invoke (eio_req *req)	345	req_invoke (eio_req *req)
419	{	346	{
420	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
422		349
423	if (!EIO_CANCELLED (req) && req->callback)	350	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	371	SvREADONLY_on (sv_result);
445	}	372	}
446		373
447	switch (req->type)	374	switch (req->type)
448	{	375	{
		376	case EIO_WD_OPEN:
		377	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		378	break;
		379
449	case EIO_READDIR:	380	case EIO_READDIR:
450	{	381	{
451	SV *rv = &PL_sv_undef;	382	SV *rv = &PL_sv_undef;
452		383
453	if (req->result >= 0)	384	if (req->result >= 0)
…		…
541	case EIO_STATVFS:	472	case EIO_STATVFS:
542	case EIO_FSTATVFS:	473	case EIO_FSTATVFS:
543	{	474	{
544	SV *rv = &PL_sv_undef;	475	SV *rv = &PL_sv_undef;
545		476
		477	#ifndef _WIN32
546	if (req->result >= 0)	478	if (req->result >= 0)
547	{	479	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	481	HV *hv = newHV ();
550		482
…		…
560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	492	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	493	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	494	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	495	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	496	}
		497	#endif
565		498
566	PUSHs (rv);	499	PUSHs (rv);
567	}	500	}
568		501
569	break;	502	break;
…		…
593	break;	526	break;
594		527
595	case EIO_STAT:	528	case EIO_STAT:
596	case EIO_LSTAT:	529	case EIO_LSTAT:
597	case EIO_FSTAT:	530	case EIO_FSTAT:
598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	531	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		532
599	PL_laststatval = req->result;	533	if (!(PL_laststatval = req->result))
		534	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	535	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		536
601	PUSHs (sv_result);	537	PUSHs (sv_result);
		538	break;
		539
		540	case EIO_SEEK:
		541	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
602	break;	542	break;
603		543
604	case EIO_READ:	544	case EIO_READ:
605	{	545	{
606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	546	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
609	SvSETMAGIC (req->sv2);	549	SvSETMAGIC (req->sv2);
610	PUSHs (sv_result);	550	PUSHs (sv_result);
611	}	551	}
612	break;	552	break;
613		553
		554	case EIO_CUSTOM:
		555	if (req->feed == fiemap)
		556	{
		557	#if HAVE_FIEMAP
		558	if (!req->result)
		559	{
		560	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		561
		562	if (fiemap->fm_extent_count)
		563	{
		564	AV *av = newAV ();
		565	int i;
		566
		567	while (fiemap->fm_mapped_extents)
		568	{
		569	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		570	AV *ext_av = newAV ();
		571
		572	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		573	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		574	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		575	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		576
		577	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		578	}
		579
		580	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		581	}
		582	else
		583	{
		584	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		585	PUSHs (sv_result);
		586	}
		587	}
		588	#endif
		589	}
		590	else
		591	PUSHs (sv_result);
		592	break;
		593
614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	594	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615	if (req->result > 0)	595	if (req->result > 0)
616	SvIV_set (sv_result, 0);	596	SvIV_set (sv_result, 0);
617	/* FALLTHROUGH */	597	/* FALLTHROUGH */
618		598
…		…
639	}	619	}
640		620
641	return !!SvTRUE (ERRSV);	621	return !!SvTRUE (ERRSV);
642	}	622	}
643		623
		624	static void
644	static void req_destroy (aio_req req)	625	req_destroy (aio_req req)
645	{	626	{
646	if (req->self)	627	if (req->self)
647	{	628	{
648	sv_unmagic (req->self, PERL_MAGIC_ext);	629	sv_unmagic (req->self, PERL_MAGIC_ext);
649	SvREFCNT_dec (req->self);	630	SvREFCNT_dec (req->self);
650	}	631	}
651		632
652	SvREFCNT_dec (req->sv1);	633	SvREFCNT_dec (req->sv1);
653	SvREFCNT_dec (req->sv2);	634	SvREFCNT_dec (req->sv2);
		635	SvREFCNT_dec (req->sv3);
		636	SvREFCNT_dec (req->sv4);
654	SvREFCNT_dec (req->callback);	637	SvREFCNT_dec (req->callback);
655		638
656	Safefree (req);	639	free (req);
657	}	640	}
658		641
		642	static void
659	static void req_cancel_subs (aio_req grp)	643	req_cancel_subs (aio_req grp)
660	{	644	{
661	aio_req sub;
662
663	if (grp->type != EIO_GROUP)	645	if (grp->type != EIO_GROUP)
664	return;	646	return;
665		647
666	SvREFCNT_dec (grp->sv2);	648	SvREFCNT_dec (grp->sv2);
667	grp->sv2 = 0;	649	grp->sv2 = 0;
668		650
669	eio_grp_cancel (grp);	651	eio_grp_cancel (grp);
670	}	652	}
671		653
		654	static void ecb_cold
672	static void create_respipe (void)	655	create_respipe (void)
673	{	656	{
674	if (s_epipe_renew (&respipe))	657	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	658	croak ("IO::AIO: unable to initialize result pipe");
676	}	659	}
677		660
678	static void poll_wait (void)	661	static void
		662	poll_wait (void)
679	{	663	{
680	while (eio_nreqs ())	664	while (eio_nreqs ())
681	{	665	{
682	int size;	666	int size;
683		667
…		…
692		676
693	s_epipe_wait (&respipe);	677	s_epipe_wait (&respipe);
694	}	678	}
695	}	679	}
696		680
697	static int poll_cb (void)	681	static int
		682	poll_cb (void)
698	{	683	{
699	for (;;)	684	for (;;)
700	{	685	{
701	int res = eio_poll ();	686	int res = eio_poll ();
702		687
…		…
708		693
709	poll_wait ();	694	poll_wait ();
710	}	695	}
711	}	696	}
712		697
713	static void atfork_child (void)	698	static void ecb_cold
		699	reinit (void)
714	{	700	{
715	create_respipe ();	701	create_respipe ();
		702
		703	if (eio_init (want_poll, done_poll) < 0)
		704	croak ("IO::AIO: unable to initialise eio library");
716	}	705	}
717		706
718	/*****************************************************************************/	707	/*****************************************************************************/
719		708
720	#if !_POSIX_MAPPED_FILES	709	#if !_POSIX_MAPPED_FILES
721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
722	# define munmap(addr,length) (errno = ENOSYS, -1)	711	# define munmap(addr,length) EIO_ENOSYS ()
723	#endif	712	#endif
724		713
725	#if !_POSIX_MEMORY_PROTECTION	714	#if !_POSIX_MEMORY_PROTECTION
726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
727	# define PROT_NONE 0	716	# define PROT_NONE 0
728	# define PROT_WRITE 0	717	# define PROT_WRITE 0
729	# define MAP_PRIVATE 0	718	# define MAP_PRIVATE 0
730	# define MAP_SHARED 0	719	# define MAP_SHARED 0
731	# define MAP_FIXED 0	720	# define MAP_FIXED 0
732	#endif	721	#endif
733		722
734	#define MMAP_MAGIC PERL_MAGIC_ext	723	#define MMAP_MAGIC PERL_MAGIC_ext
735		724
		725	static int ecb_cold
736	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)	726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
737	{	727	{
738	int old_errno = errno;	728	int old_errno = errno;
739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740	errno = old_errno;	730	errno = old_errno;
741		731
…		…
757	0, 0, 0, 0, mmap_free	747	0, 0, 0, 0, mmap_free
758	};	748	};
759		749
760	/*****************************************************************************/	750	/*****************************************************************************/
761		751
		752	static SV *
762	static SV * get_cb (SV *cb_sv)	753	get_cb (SV *cb_sv)
763	{	754	{
764	SvGETMAGIC (cb_sv);	755	SvGETMAGIC (cb_sv);
765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	756	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766	}	757	}
767		758
		759	static aio_req ecb_noinline
		760	dreq (SV *callback)
		761	{
		762	SV *cb_cv;
		763	aio_req req;
		764	int req_pri = next_pri;
		765	next_pri = EIO_PRI_DEFAULT;
		766
		767	cb_cv = get_cb (callback);
		768
		769	req = calloc (sizeof (*req), 1);
		770	if (!req)
		771	croak ("out of memory during eio_req allocation");
		772
		773	req->callback = SvREFCNT_inc (cb_cv);
		774	req->pri = req_pri;
		775
		776	return req;
		777	}
		778
768	#define dREQ \	779	#define dREQ \
769	SV *cb_cv; \	780	aio_req req = dreq (callback); \
770	aio_req req; \
771	int req_pri = next_pri; \
772	next_pri = EIO_PRI_DEFAULT; \
773	\
774	cb_cv = get_cb (callback); \
775	\
776	Newz (0, req, 1, eio_req); \
777	if (!req) \
778	croak ("out of memory during eio_req allocation"); \
779	\
780	req->callback = SvREFCNT_inc (cb_cv); \
781	req->pri = req_pri
782		781
783	#define REQ_SEND \	782	#define REQ_SEND \
784	PUTBACK; \	783	PUTBACK; \
785	req_submit (req); \	784	req_submit (req); \
786	SPAGAIN; \	785	SPAGAIN; \
787	\	786	\
788	if (GIMME_V != G_VOID) \	787	if (GIMME_V != G_VOID) \
789	XPUSHs (req_sv (req, aio_req_stash));	788	XPUSHs (req_sv (req, aio_req_stash));
790		789
		790	ecb_inline void
		791	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		792	{
		793	if (expect_false (SvROK (path)))
		794	{
		795	SV *rv = SvRV (path);
		796	SV *wdob;
		797
		798	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		799	{
		800	path = AvARRAY (rv)[1];
		801	wdob = AvARRAY (rv)[0];
		802
		803	if (SvOK (wdob))
		804	{
		805	*wd = SvAIO_WD (wdob);
		806	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		807	}
		808	else
		809	*wd = EIO_INVALID_WD;
		810	}
		811	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		812	{
		813	*wd = (aio_wd)(long)SvIVX (rv);
		814	*wdsv = SvREFCNT_inc_NN (rv);
		815	*ptr = ".";
		816	return; /* path set to "." */
		817	}
		818	else
		819	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		820	}
		821
		822	*pathsv = newSVsv (path);
		823	*ptr = SvPVbyte_nolen (*pathsv);
		824	}
		825
		826	static void ecb_noinline
		827	req_set_path1 (aio_req req, SV *path)
		828	{
		829	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		830	}
		831
		832	static void ecb_noinline
		833	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		834	{
		835	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		836
		837	switch (SvTYPE (rv))
		838	{
		839	case SVt_PVIO:
		840	case SVt_PVLV:
		841	case SVt_PVGV:
		842	req->type = type_fh;
		843	req->sv1 = newSVsv (fh_or_path);
		844	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		845	break;
		846
		847	default:
		848	req->type = type_path;
		849	req_set_path1 (req, fh_or_path);
		850	break;
		851	}
		852	}
		853
		854	XS(boot_IO__AIO) ecb_cold;
		855
791	MODULE = IO::AIO PACKAGE = IO::AIO	856	MODULE = IO::AIO PACKAGE = IO::AIO
792		857
793	PROTOTYPES: ENABLE	858	PROTOTYPES: ENABLE
794		859
795	BOOT:	860	BOOT:
…		…
799	IV iv;	864	IV iv;
800	} *civ, const_iv[] = {	865	} *civ, const_iv[] = {
801	# define const_niv(name, value) { # name, (IV) value },	866	# define const_niv(name, value) { # name, (IV) value },
802	# define const_iv(name) { # name, (IV) name },	867	# define const_iv(name) { # name, (IV) name },
803	# define const_eio(name) { # name, (IV) EIO_ ## name },	868	# define const_eio(name) { # name, (IV) EIO_ ## name },
		869
		870	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		871
		872	const_iv (ENOSYS)
804	const_iv (EXDEV)	873	const_iv (EXDEV)
805	const_iv (ENOSYS)	874	const_iv (EBADR)
		875
806	const_iv (O_RDONLY)	876	const_iv (O_RDONLY)
807	const_iv (O_WRONLY)	877	const_iv (O_WRONLY)
808	const_iv (O_RDWR)	878	const_iv (O_RDWR)
809	const_iv (O_CREAT)	879	const_iv (O_CREAT)
810	const_iv (O_TRUNC)	880	const_iv (O_TRUNC)
…		…
878	const_iv (MAP_LOCKED)	948	const_iv (MAP_LOCKED)
879	const_iv (MAP_NORESERVE)	949	const_iv (MAP_NORESERVE)
880	const_iv (MAP_POPULATE)	950	const_iv (MAP_POPULATE)
881	const_iv (MAP_NONBLOCK)	951	const_iv (MAP_NONBLOCK)
882		952
		953	const_iv (FIEMAP_FLAG_SYNC)
		954	const_iv (FIEMAP_FLAG_XATTR)
		955	const_iv (FIEMAP_FLAGS_COMPAT)
		956	const_iv (FIEMAP_EXTENT_LAST)
		957	const_iv (FIEMAP_EXTENT_UNKNOWN)
		958	const_iv (FIEMAP_EXTENT_DELALLOC)
		959	const_iv (FIEMAP_EXTENT_ENCODED)
		960	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		961	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		962	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		963	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		964	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		965	const_iv (FIEMAP_EXTENT_MERGED)
		966	const_iv (FIEMAP_EXTENT_SHARED)
		967
		968	const_iv (SPLICE_F_MOVE)
		969	const_iv (SPLICE_F_NONBLOCK)
		970	const_iv (SPLICE_F_MORE)
		971	const_iv (SPLICE_F_GIFT)
		972
		973	const_iv (SEEK_DATA)
		974	const_iv (SEEK_HOLE)
		975
		976	/* libeio constants */
		977	const_eio (SEEK_SET)
		978	const_eio (SEEK_CUR)
		979	const_eio (SEEK_END)
		980
883	const_eio (MCL_FUTURE)	981	const_eio (MCL_FUTURE)
884	const_eio (MCL_CURRENT)	982	const_eio (MCL_CURRENT)
885		983
886	const_eio (MS_ASYNC)	984	const_eio (MS_ASYNC)
887	const_eio (MS_INVALIDATE)	985	const_eio (MS_INVALIDATE)
…		…
892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	990	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893	const_eio (SYNC_FILE_RANGE_WRITE)	991	const_eio (SYNC_FILE_RANGE_WRITE)
894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
895		993
896	const_eio (FALLOC_FL_KEEP_SIZE)	994	const_eio (FALLOC_FL_KEEP_SIZE)
		995	const_eio (FALLOC_FL_PUNCH_HOLE)
897		996
898	const_eio (READDIR_DENTS)	997	const_eio (READDIR_DENTS)
899	const_eio (READDIR_DIRS_FIRST)	998	const_eio (READDIR_DIRS_FIRST)
900	const_eio (READDIR_STAT_ORDER)	999	const_eio (READDIR_STAT_ORDER)
901	const_eio (READDIR_FOUND_UNKNOWN)	1000	const_eio (READDIR_FOUND_UNKNOWN)
…		…
912	};	1011	};
913		1012
914	aio_stash = gv_stashpv ("IO::AIO" , 1);	1013	aio_stash = gv_stashpv ("IO::AIO" , 1);
915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1014	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1015	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1016	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
917		1017
918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1018	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
919	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1019	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
920		1020
921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1021	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922		1022
923	create_respipe ();	1023	reinit ();
924
925	if (eio_init (want_poll, done_poll) < 0)
926	croak ("IO::AIO: unable to initialise eio library");
927
928	/* atfork child called in fifo order, so before eio's handler */
929	X_THREAD_ATFORK (0, 0, atfork_child);
930	}	1024	}
		1025
		1026	void
		1027	reinit ()
		1028	PROTOTYPE:
931		1029
932	void	1030	void
933	max_poll_reqs (unsigned int nreqs)	1031	max_poll_reqs (unsigned int nreqs)
934	PROTOTYPE: $	1032	PROTOTYPE: $
935	CODE:	1033	CODE:
…		…
970	PROTOTYPE: $	1068	PROTOTYPE: $
971	CODE:	1069	CODE:
972	max_outstanding = maxreqs;	1070	max_outstanding = maxreqs;
973		1071
974	void	1072	void
		1073	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1074	PPCODE:
		1075	{
		1076	dREQ;
		1077
		1078	req->type = EIO_WD_OPEN;
		1079	req_set_path1 (req, pathname);
		1080
		1081	REQ_SEND;
		1082	}
		1083
		1084	void
975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1085	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
976	PPCODE:	1086	PPCODE:
977	{	1087	{
978	dREQ;	1088	dREQ;
979		1089
980	req->type = EIO_OPEN;	1090	req->type = EIO_OPEN;
981	req->sv1 = newSVsv (pathname);	1091	req_set_path1 (req, pathname);
982	req->ptr1 = SvPVbyte_nolen (req->sv1);
983	req->int1 = flags;	1092	req->int1 = flags;
984	req->int2 = mode;	1093	req->int2 = mode;
985		1094
986	REQ_SEND;	1095	REQ_SEND;
987	}	1096	}
…		…
989	void	1098	void
990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
991	ALIAS:	1100	ALIAS:
992	aio_fsync = EIO_FSYNC	1101	aio_fsync = EIO_FSYNC
993	aio_fdatasync = EIO_FDATASYNC	1102	aio_fdatasync = EIO_FDATASYNC
		1103	aio_syncfs = EIO_SYNCFS
994	PPCODE:	1104	PPCODE:
995	{	1105	{
996	int fd = s_fileno_croak (fh, 0);	1106	int fd = s_fileno_croak (fh, 0);
997	dREQ;	1107	dREQ;
998		1108
999	req->type = ix;	1109	req->type = ix;
1000	req->sv1 = newSVsv (fh);	1110	req->sv1 = newSVsv (fh);
1001	req->int1 = fd;	1111	req->int1 = fd;
1002		1112
1003	REQ_SEND (req);	1113	REQ_SEND;
1004	}	1114	}
1005		1115
1006	void	1116	void
1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1117	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1008	PPCODE:	1118	PPCODE:
…		…
1015	req->int1 = fd;	1125	req->int1 = fd;
1016	req->offs = offset;	1126	req->offs = offset;
1017	req->size = nbytes;	1127	req->size = nbytes;
1018	req->int2 = flags;	1128	req->int2 = flags;
1019		1129
1020	REQ_SEND (req);	1130	REQ_SEND;
1021	}	1131	}
1022		1132
1023	void	1133	void
1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1134	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1025	PPCODE:	1135	PPCODE:
…		…
1032	req->int1 = fd;	1142	req->int1 = fd;
1033	req->int2 = mode;	1143	req->int2 = mode;
1034	req->offs = offset;	1144	req->offs = offset;
1035	req->size = len;	1145	req->size = len;
1036		1146
1037	REQ_SEND (req);	1147	REQ_SEND;
1038	}	1148	}
1039		1149
1040	void	1150	void
1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1042	PPCODE:	1152	PPCODE:
1043	{	1153	{
1044	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1154	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1045	int fd = s_fileno_croak (fh, 0);	1155	int fd = s_fileno_croak (fh, 0);
1046	dREQ;	1156	dREQ;
1047		1157
1048	if (close_pipe < 0)	1158	if (expect_false (close_fd < 0))
1049	{	1159	{
1050	int pipefd [2];	1160	int pipefd [2];
1051		1161
		1162	if (
		1163	#ifdef _WIN32
		1164	_pipe (pipefd, 1, _O_BINARY) < 0
		1165	#else
1052	if (pipe (pipefd) < 0	1166	pipe (pipefd) < 0
1053	|| close (pipefd [1]) < 0
1054	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1167	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1168	#endif
		1169	|| close (pipefd [1]) < 0
		1170	)
1055	abort (); /*D*/	1171	abort (); /*D*/
1056		1172
1057	close_pipe = pipefd [0];	1173	close_fd = pipefd [0];
1058	}	1174	}
1059		1175
1060	req->type = EIO_DUP2;	1176	req->type = EIO_DUP2;
1061	req->int1 = close_pipe;	1177	req->int1 = close_fd;
1062	req->sv2 = newSVsv (fh);	1178	req->sv2 = newSVsv (fh);
1063	req->int2 = fd;	1179	req->int2 = fd;
1064		1180
1065	REQ_SEND (req);	1181	REQ_SEND;
		1182	}
		1183
		1184	void
		1185	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1186	PPCODE:
		1187	{
		1188	int fd = s_fileno_croak (fh, 0);
		1189	dREQ;
		1190
		1191	req->type = EIO_SEEK;
		1192	req->sv1 = newSVsv (fh);
		1193	req->int1 = fd;
		1194	req->offs = SvVAL64 (offset);
		1195	req->int2 = whence;
		1196
		1197	REQ_SEND;
1066	}	1198	}
1067		1199
1068	void	1200	void
1069	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1201	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1070	ALIAS:	1202	ALIAS:
…		…
1091	}	1223	}
1092	else	1224	else
1093	{	1225	{
1094	/* read: check type and grow scalar as necessary */	1226	/* read: check type and grow scalar as necessary */
1095	SvUPGRADE (data, SVt_PV);	1227	SvUPGRADE (data, SVt_PV);
		1228	if (SvLEN (data) >= SvCUR (data))
1096	svptr = SvGROW (data, len + dataoffset + 1);	1229	svptr = SvGROW (data, len + dataoffset + 1);
		1230	else if (SvCUR (data) < len + dataoffset)
		1231	croak ("length + dataoffset outside of scalar, and cannot grow");
1097	}	1232	}
1098		1233
1099	{	1234	{
1100	dREQ;	1235	dREQ;
1101		1236
…		…
1117	REQ_SEND;	1252	REQ_SEND;
1118	}	1253	}
1119	}	1254	}
1120		1255
1121	void	1256	void
1122	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1123	ALIAS:	1258	ALIAS:
1124	aio_readlink = EIO_READLINK	1259	aio_readlink = EIO_READLINK
1125	aio_realpath = EIO_REALPATH	1260	aio_realpath = EIO_REALPATH
1126	PPCODE:	1261	PPCODE:
1127	{	1262	{
1128	SV *data;
1129	dREQ;	1263	dREQ;
1130		1264
1131	req->type = ix;	1265	req->type = ix;
1132	req->sv1 = newSVsv (path);	1266	req_set_path1 (req, pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134		1267
1135	REQ_SEND;	1268	REQ_SEND;
1136	}	1269	}
1137		1270
1138	void	1271	void
…		…
1178	aio_statvfs = EIO_STATVFS	1311	aio_statvfs = EIO_STATVFS
1179	PPCODE:	1312	PPCODE:
1180	{	1313	{
1181	dREQ;	1314	dREQ;
1182		1315
1183	req->sv1 = newSVsv (fh_or_path);	1316	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1184
1185	if (SvPOK (req->sv1))
1186	{
1187	req->type = ix;
1188	req->ptr1 = SvPVbyte_nolen (req->sv1);
1189	}
1190	else
1191	{
1192	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1193	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1194	}
1195		1317
1196	REQ_SEND;	1318	REQ_SEND;
1197	}	1319	}
1198		1320
1199	UV	1321	UV
…		…
1218	{	1340	{
1219	dREQ;	1341	dREQ;
1220		1342
1221	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1222	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1344	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1223	req->sv1 = newSVsv (fh_or_path);	1345	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1224
1225	if (SvPOK (req->sv1))
1226	{
1227	req->type = EIO_UTIME;
1228	req->ptr1 = SvPVbyte_nolen (req->sv1);
1229	}
1230	else
1231	{
1232	req->type = EIO_FUTIME;
1233	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1234	}
1235		1346
1236	REQ_SEND;	1347	REQ_SEND;
1237	}	1348	}
1238		1349
1239	void	1350	void
1240	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1351	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1241	PPCODE:	1352	PPCODE:
1242	{	1353	{
1243	dREQ;	1354	dREQ;
1244		1355
1245	req->sv1 = newSVsv (fh_or_path);
1246	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1247		1357	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1248	if (SvPOK (req->sv1))
1249	{
1250	req->type = EIO_TRUNCATE;
1251	req->ptr1 = SvPVbyte_nolen (req->sv1);
1252	}
1253	else
1254	{
1255	req->type = EIO_FTRUNCATE;
1256	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1257	}
1258		1358
1259	REQ_SEND;	1359	REQ_SEND;
1260	}	1360	}
1261		1361
1262	void	1362	void
1263	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1363	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1264	ALIAS:
1265	aio_chmod = EIO_CHMOD
1266	aio_mkdir = EIO_MKDIR
1267	PPCODE:	1364	PPCODE:
1268	{	1365	{
1269	dREQ;	1366	dREQ;
1270		1367
1271	req->int2 = mode;	1368	req->int2 = mode;
1272	req->sv1 = newSVsv (fh_or_path);	1369	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1273
1274	if (SvPOK (req->sv1))
1275	{
1276	req->type = ix;
1277	req->ptr1 = SvPVbyte_nolen (req->sv1);
1278	}
1279	else
1280	{
1281	req->type = EIO_FCHMOD;
1282	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1283	}
1284		1370
1285	REQ_SEND;	1371	REQ_SEND;
1286	}	1372	}
1287		1373
1288	void	1374	void
…		…
1291	{	1377	{
1292	dREQ;	1378	dREQ;
1293		1379
1294	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1295	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1381	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1296	req->sv1 = newSVsv (fh_or_path);	1382	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1297
1298	if (SvPOK (req->sv1))
1299	{
1300	req->type = EIO_CHOWN;
1301	req->ptr1 = SvPVbyte_nolen (req->sv1);
1302	}
1303	else
1304	{
1305	req->type = EIO_FCHOWN;
1306	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1307	}
1308		1383
1309	REQ_SEND;	1384	REQ_SEND;
1310	}	1385	}
1311		1386
1312	void	1387	void
…		…
1314	PPCODE:	1389	PPCODE:
1315	{	1390	{
1316	dREQ;	1391	dREQ;
1317		1392
1318	req->type = EIO_READDIR;	1393	req->type = EIO_READDIR;
1319	req->sv1 = newSVsv (pathname);
1320	req->ptr1 = SvPVbyte_nolen (req->sv1);
1321	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1394	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1322		1395
1323	if (flags & EIO_READDIR_DENTS)	1396	if (flags & EIO_READDIR_DENTS)
1324	req->int1 |= EIO_READDIR_CUSTOM2;	1397	req->int1 |= EIO_READDIR_CUSTOM2;
1325		1398
		1399	req_set_path1 (req, pathname);
		1400
1326	REQ_SEND;	1401	REQ_SEND;
		1402	}
		1403
		1404	void
		1405	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1406	PPCODE:
		1407	{
		1408	dREQ;
		1409
		1410	req->type = EIO_MKDIR;
		1411	req->int2 = mode;
		1412	req_set_path1 (req, pathname);
		1413
		1414	REQ_SEND;
1327	}	1415	}
1328		1416
1329	void	1417	void
1330	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1418	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331	ALIAS:	1419	ALIAS:
…		…
1335	PPCODE:	1423	PPCODE:
1336	{	1424	{
1337	dREQ;	1425	dREQ;
1338		1426
1339	req->type = ix;	1427	req->type = ix;
1340	req->sv1 = newSVsv (pathname);	1428	req_set_path1 (req, pathname);
1341	req->ptr1 = SvPVbyte_nolen (req->sv1);
1342		1429
1343	REQ_SEND;	1430	REQ_SEND;
1344	}	1431	}
1345		1432
1346	void	1433	void
…		…
1349	aio_link = EIO_LINK	1436	aio_link = EIO_LINK
1350	aio_symlink = EIO_SYMLINK	1437	aio_symlink = EIO_SYMLINK
1351	aio_rename = EIO_RENAME	1438	aio_rename = EIO_RENAME
1352	PPCODE:	1439	PPCODE:
1353	{	1440	{
		1441	eio_wd wd2 = 0;
1354	dREQ;	1442	dREQ;
1355		1443
1356	req->type = ix;	1444	req->type = ix;
1357	req->sv1 = newSVsv (oldpath);	1445	req_set_path1 (req, oldpath);
1358	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1359	req->sv2 = newSVsv (newpath);	1447	req->int3 = (long)wd2;
1360	req->ptr2 = SvPVbyte_nolen (req->sv2);
1361		1448
1362	REQ_SEND;	1449	REQ_SEND;
1363	}	1450	}
1364		1451
1365	void	1452	void
…		…
1367	PPCODE:	1454	PPCODE:
1368	{	1455	{
1369	dREQ;	1456	dREQ;
1370		1457
1371	req->type = EIO_MKNOD;	1458	req->type = EIO_MKNOD;
1372	req->sv1 = newSVsv (pathname);
1373	req->ptr1 = SvPVbyte_nolen (req->sv1);
1374	req->int2 = (mode_t)mode;	1459	req->int2 = (mode_t)mode;
1375	req->offs = dev;	1460	req->offs = dev;
		1461	req_set_path1 (req, pathname);
1376		1462
1377	REQ_SEND;	1463	REQ_SEND;
1378	}	1464	}
1379		1465
1380	void	1466	void
…		…
1447		1533
1448	req->type = EIO_MLOCKALL;	1534	req->type = EIO_MLOCKALL;
1449	req->int1 = flags;	1535	req->int1 = flags;
1450		1536
1451	REQ_SEND;	1537	REQ_SEND;
		1538	}
		1539
		1540	void
		1541	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	int fd = s_fileno_croak (fh, 0);
		1545	dREQ;
		1546
		1547	req->type = EIO_CUSTOM;
		1548	req->sv1 = newSVsv (fh);
		1549	req->int1 = fd;
		1550
		1551	req->feed = fiemap;
		1552	#if HAVE_FIEMAP
		1553	/* keep our fingers crossed that the next two types are 64 bit */
		1554	req->offs = start;
		1555	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1556	req->int2 = flags;
		1557	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1558	#endif
		1559
		1560	REQ_SEND;
1452	}	1561	}
1453		1562
1454	void	1563	void
1455	aio_busy (double delay, SV *callback=&PL_sv_undef)	1564	aio_busy (double delay, SV *callback=&PL_sv_undef)
1456	PPCODE:	1565	PPCODE:
…		…
1580	CODE:	1689	CODE:
1581	RETVAL = posix_fadvise (fh, offset, length, advice);	1690	RETVAL = posix_fadvise (fh, offset, length, advice);
1582	OUTPUT:	1691	OUTPUT:
1583	RETVAL	1692	RETVAL
1584		1693
1585	ssize_t	1694	IV
1586	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1695	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1587	CODE:	1696	CODE:
1588	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1589	OUTPUT:	1698	OUTPUT:
1590	RETVAL	1699	RETVAL
1591		1700
1592	void	1701	void
1593	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1702	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1594	PPCODE:	1703	PPCODE:
1595	sv_unmagic (scalar, MMAP_MAGIC);	1704	sv_unmagic (scalar, MMAP_MAGIC);
1596	{	1705	{
1597	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1706	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1598	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1631	ALIAS:	1740	ALIAS:
1632	mprotect = 1	1741	mprotect = 1
1633	CODE:	1742	CODE:
1634	{	1743	{
1635	STRLEN svlen;	1744	STRLEN svlen;
1636	void *addr = SvPVbyte (scalar, svlen);	1745	void *addr = SvPVbyte (scalar, svlen);
1637	size_t len = SvUV (length);	1746	size_t len = SvUV (length);
1638		1747
1639	if (offset < 0)	1748	if (offset < 0)
1640	offset += svlen;	1749	offset += svlen;
1641		1750
…		…
1677	addr = (void *)(((intptr_t)addr) + offset);	1786	addr = (void *)(((intptr_t)addr) + offset);
1678	eio_page_align (&addr, &len);	1787	eio_page_align (&addr, &len);
1679	#if _POSIX_MEMLOCK_RANGE	1788	#if _POSIX_MEMLOCK_RANGE
1680	RETVAL = munlock (addr, len);	1789	RETVAL = munlock (addr, len);
1681	#else	1790	#else
1682	RETVAL = ((errno = ENOSYS), -1);	1791	RETVAL = EIO_ENOSYS ();
1683	#endif	1792	#endif
1684	}	1793	}
1685	OUTPUT:	1794	OUTPUT:
1686	RETVAL	1795	RETVAL
1687		1796
…		…
1689	munlockall ()	1798	munlockall ()
1690	CODE:	1799	CODE:
1691	#if _POSIX_MEMLOCK	1800	#if _POSIX_MEMLOCK
1692	munlockall ();	1801	munlockall ();
1693	#else	1802	#else
1694	RETVAL = -1;	1803	RETVAL = EIO_ENOSYS ();
1695	errno = ENOSYS;
1696	#endif	1804	#endif
1697	OUTPUT:	1805	OUTPUT:
		1806	RETVAL
		1807
		1808	int
		1809	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1810	CODE:
		1811	{
		1812	#if HAVE_LINUX_SPLICE
		1813	loff_t off_in_, off_out_;
		1814	RETVAL = splice (
		1815	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1816	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1817	length, flags
		1818	);
		1819	#else
		1820	RETVAL = EIO_ENOSYS ();
		1821	#endif
		1822	}
		1823	OUTPUT:
		1824	RETVAL
		1825
		1826	int
		1827	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1828	CODE:
		1829	#if HAVE_LINUX_SPLICE
		1830	RETVAL = tee (rfh, wfh, length, flags);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	OUTPUT:
1698	RETVAL	1835	RETVAL
1699		1836
1700	void _on_next_submit (SV *cb)	1837	void _on_next_submit (SV *cb)
1701	CODE:	1838	CODE:
1702	SvREFCNT_dec (on_next_submit);	1839	SvREFCNT_dec (on_next_submit);
1703	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1704		1841
1705	PROTOTYPES: DISABLE	1842	PROTOTYPES: DISABLE
1706		1843
		1844	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1845
		1846	BOOT:
		1847	{
		1848	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1849	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1850	}
		1851
		1852	void
		1853	DESTROY (SV *self)
		1854	CODE:
		1855	{
		1856	aio_wd wd = SvAIO_WD (self);
		1857	#if HAVE_AT
		1858	{
		1859	SV *callback = &PL_sv_undef;
		1860	dREQ; /* clobbers next_pri :/ */
		1861	next_pri = req->pri; /* restore next_pri */
		1862	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1863	req->type = EIO_WD_CLOSE;
		1864	req->wd = wd;
		1865	REQ_SEND;
		1866	}
		1867	#else
		1868	eio_wd_close_sync (wd);
		1869	#endif
		1870	}
		1871
1707	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1872	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1708		1873
1709	void	1874	void
1710	cancel (aio_req_ornot req)	1875	cancel (aio_req_ornot req)
1711	CODE:	1876	CODE:

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