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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.162 by root, Sun Jan 10 23:05:12 2010 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_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
25	#if !_POSIX_MAPPED_FILES	24	#if __linux__
26	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	25	# include <linux/fs.h>
27	# define munmap(addr,length) (errno = ENOSYS, -1)	26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
28	#endif	31	#endif
29		32
30	/* perl namespace pollution */	33	/* perl namespace pollution */
31	#undef VERSION	34	#undef VERSION
32
33	#ifdef _WIN32
34
35	# define EIO_STRUCT_DIRENT Direntry_t
36	# undef malloc
37	# undef free
38
39	// perl overrides all those nice win32 functions
40	# undef open
41	# undef read
42	# undef write
43	# undef send
44	# undef recv
45	# undef stat
46	# undef fstat
47	# define lstat stat
48	# undef truncate
49	# undef ftruncate
50	# undef open
51	# undef close
52	# undef unlink
53	# undef rmdir
54	# undef rename
55	# undef lseek
56
57	# define chown(a,b,c) (errno = ENOSYS, -1)
58	# define fchown(a,b,c) (errno = ENOSYS, -1)
59	# define fchmod(a,b) (errno = ENOSYS, -1)
60	# define symlink(a,b) (errno = ENOSYS, -1)
61	# define readlink(a,b,c) (errno = ENOSYS, -1)
62	# define mknod(a,b,c) (errno = ENOSYS, -1)
63	# define truncate(a,b) (errno = ENOSYS, -1)
64	# define ftruncate(fd,o) chsize ((fd), (o))
65	# define fsync(fd) _commit (fd)
66	# define opendir(fd) (errno = ENOSYS, 0)
67	# define readdir(fd) (errno = ENOSYS, -1)
68	# define closedir(fd) (errno = ENOSYS, -1)
69	# define mkdir(a,b) mkdir (a)
70
71	#else
72
73	# include <sys/time.h>
74	# include <sys/select.h>
75	# include <unistd.h>
76	# include <utime.h>
77	# include <signal.h>
78	# define EIO_STRUCT_DIRENT struct dirent
79
80	#endif
81		35
82	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
83	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
84	#undef readdir	38	#undef readdir
85	#undef opendir	39	#undef opendir
86	#undef closedir	40	#undef closedir
87		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
88	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
89		78
90	/* use NV for 32 bit perls as it allows larger offsets */
91	#if IVSIZE >= 8
92	# define VAL64 IV
93	# define SvVAL64 SvIV
94	# define newSVval64 newSViv
95	#else	79	#else
96	# define VAL64 NV	80
97	# define SvVAL64 SvNV	81	#include <sys/time.h>
98	# 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
99	#endif	89	#endif
100		90
101	/*****************************************************************************/	91	/*****************************************************************************/
102		92
103	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
113		103
114	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
115	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
116	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
117		107
118	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
119		109
120	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
121	SV *callback; \	111	SV *callback; \
122	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
123	STRLEN stroffset; \	114	STRLEN stroffset; \
124	SV *self;	115	SV *self;
125		116
126	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
127		118
		119	#include "libeio/config.h"
128	#include "libeio/eio.h"	120	#include "libeio/eio.h"
129		121
130	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
131	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
132	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
133	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
134	#ifndef POSIX_FADV_SEQUENTIAL
135	# define POSIX_FADV_SEQUENTIAL 0
136	#endif
137	#ifndef POSIX_FADV_RANDOM
138	# define POSIX_FADV_RANDOM 0
139	#endif
140	#ifndef POSIX_FADV_NOREUSE
141	# define POSIX_FADV_NOREUSE 0
142	#endif
143	#ifndef POSIX_FADV_WILLNEED
144	# define POSIX_FADV_WILLNEED 0
145	#endif
146	#ifndef POSIX_FADV_DONTNEED
147	# define POSIX_FADV_DONTNEED 0
148	#endif
149		126
150	#ifndef ST_NODEV	127	#include "libeio/eio.c"
151	# define ST_NODEV 0
152	#endif
153	#ifndef ST_NOEXEC
154	# define ST_NOEXEC 0
155	#endif
156	#ifndef ST_SYNCHRONOUS
157	# define ST_SYNCHRONOUS 0
158	#endif
159	#ifndef ST_MANDLOCK
160	# define ST_MANDLOCK 0
161	#endif
162	#ifndef ST_WRITE
163	# define ST_WRITE 0
164	#endif
165	#ifndef ST_APPEND
166	# define ST_APPEND 0
167	#endif
168	#ifndef ST_IMMUTABLE
169	# define ST_IMMUTABLE 0
170	#endif
171	#ifndef ST_NOATIME
172	# define ST_NOATIME 0
173	#endif
174	#ifndef ST_NODIRATIME
175	# define ST_NODIRATIME 0
176	#endif
177	#ifndef ST_RELATIME
178	# define ST_RELATIME 0
179	#endif
180		128
181	#ifndef MCL_CURRENT	129	#if !HAVE_POSIX_FADVISE
182	# define MCL_CURRENT 0	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
183	#endif	131	#endif
184	#ifndef MCL_FUTURE	132
185	# define MCL_FUTURE 0	133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
186	#endif	135	#endif
187		136
188	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
189	# ifdef MAP_ANON	138	# ifdef MAP_ANON
190	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
191	# else	140	# else
192	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
193	# endif	142	# endif
194	#endif	143	#endif
195	#ifndef MAP_HUGETLB	144
196	# define MAP_HUGETLB 0	145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
197	#endif	150	#endif
198	#ifndef MAP_LOCKED	151	#ifndef major
199	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
200	#endif	153	#endif
201	#ifndef MAP_NORESERVE	154	#ifndef minor
202	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
203	#endif
204	#ifndef MAP_POPULATE
205	# define MAP_POPULATE 0
206	#endif
207	#ifndef MAP_NONBLOCK
208	# define MAP_NONBLOCK 0
209	#endif	156	#endif
210		157
211	#ifndef PAGESIZE	158	#ifndef PAGESIZE
212	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
213	#endif	160	#endif
214		161
215	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
216	#define EIO_FINISH(req) req_invoke (req)	163
217	static void req_destroy (eio_req *grp);	164	static void
218	#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	/*****************************************************************************/
219		228
220	enum {	229	enum {
221	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	230	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
222	};	231	};
223		232
224	#include "libeio/eio.c"
225
226	typedef eio_req *aio_req;	233	typedef eio_req *aio_req;
227	typedef eio_req *aio_req_ornot;	234	typedef eio_req *aio_req_ornot;
		235	typedef eio_wd aio_wd;
228		236
229	static SV *on_next_submit;	237	static SV *on_next_submit;
230	static int next_pri = EIO_PRI_DEFAULT;	238	static int next_pri = EIO_PRI_DEFAULT;
231	static int max_outstanding;	239	static int max_outstanding;
232		240
233	static s_epipe respipe;	241	static s_epipe respipe;
234		242
235	static void req_destroy (aio_req req);	243	static void req_destroy (aio_req req);
236	static void req_cancel (aio_req req);	244	static void req_cancel (aio_req req);
237		245
238	static void want_poll (void)	246	static void
		247	want_poll (void)
239	{	248	{
240	/* write a dummy byte to the pipe so fh becomes ready */	249	/* write a dummy byte to the pipe so fh becomes ready */
241	s_epipe_signal (&respipe);	250	s_epipe_signal (&respipe);
242	}	251	}
243		252
244	static void done_poll (void)	253	static void
		254	done_poll (void)
245	{	255	{
246	/* read any signals sent by the worker threads */	256	/* read any signals sent by the worker threads */
247	s_epipe_drain (&respipe);	257	s_epipe_drain (&respipe);
248	}	258	}
249		259
250	/* must be called at most once */	260	/* must be called at most once */
		261	static SV *
251	static SV *req_sv (aio_req req, HV *stash)	262	req_sv (aio_req req, HV *stash)
252	{	263	{
253	if (!req->self)	264	if (!req->self)
254	{	265	{
255	req->self = (SV *)newHV ();	266	req->self = (SV *)newHV ();
256	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	267	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
257	}	268	}
258		269
259	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	270	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
260	}	271	}
261		272
262	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)
263	{	281	{
264	MAGIC *mg;	282	MAGIC *mg;
265		283
266	if (!SvROK (sv)	284	if (!SvROK (sv)
		285	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
267	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	286	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
268	&& SvSTASH (SvRV (sv)) != aio_req_stash	287	&& SvSTASH (SvRV (sv)) != aio_req_stash
269	&& !sv_derived_from (sv, "IO::AIO::REQ")))	288	&& !sv_derived_from (sv, "IO::AIO::REQ")))
270	croak ("object of class IO::AIO::REQ expected");	289	croak ("object of class IO::AIO::REQ expected");
271		290
272	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	291	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273		292
274	return mg ? (aio_req)mg->mg_ptr : 0;	293	return mg ? (aio_req)mg->mg_ptr : 0;
275	}	294	}
276		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
277	static void aio_grp_feed (aio_req grp)	308	aio_grp_feed (aio_req grp)
278	{	309	{
279	if (grp->sv2 && SvOK (grp->sv2))	310	if (grp->sv2 && SvOK (grp->sv2))
280	{	311	{
281	dSP;	312	dSP;
282		313
…		…
290	FREETMPS;	321	FREETMPS;
291	LEAVE;	322	LEAVE;
292	}	323	}
293	}	324	}
294		325
		326	static void
295	static void req_submit (eio_req *req)	327	req_submit (eio_req *req)
296	{	328	{
297	eio_submit (req);	329	eio_submit (req);
298		330
299	if (expect_false (on_next_submit))	331	if (expect_false (on_next_submit))
300	{	332	{
…		…
307	PUTBACK;	339	PUTBACK;
308	call_sv (cb, G_DISCARD | G_EVAL);	340	call_sv (cb, G_DISCARD | G_EVAL);
309	}	341	}
310	}	342	}
311		343
		344	static int
312	static int req_invoke (eio_req *req)	345	req_invoke (eio_req *req)
313	{	346	{
314	dSP;
315
316	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
317	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
318		349
319	if (!EIO_CANCELLED (req) && req->callback)	350	if (!EIO_CANCELLED (req) && req->callback)
320	{	351	{
		352	dSP;
		353	static SV *sv_result_cache; /* caches the result integer SV */
		354	SV *sv_result;
		355
321	ENTER;	356	ENTER;
322	SAVETMPS;	357	SAVETMPS;
323	PUSHMARK (SP);	358	PUSHMARK (SP);
324	EXTEND (SP, 1);	359	EXTEND (SP, 1);
325		360
		361	/* do not recreate the result IV from scratch each time */
		362	if (expect_true (sv_result_cache))
		363	{
		364	sv_result = sv_result_cache; sv_result_cache = 0;
		365	SvIV_set (sv_result, req->result);
		366	SvIOK_only (sv_result);
		367	}
		368	else
		369	{
		370	sv_result = newSViv (req->result);
		371	SvREADONLY_on (sv_result);
		372	}
		373
326	switch (req->type)	374	switch (req->type)
327	{	375	{
		376	case EIO_WD_OPEN:
		377	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		378	break;
		379
328	case EIO_READDIR:	380	case EIO_READDIR:
329	{	381	{
330	SV *rv = &PL_sv_undef;	382	SV *rv = &PL_sv_undef;
331		383
332	if (req->result >= 0)	384	if (req->result >= 0)
…		…
420	case EIO_STATVFS:	472	case EIO_STATVFS:
421	case EIO_FSTATVFS:	473	case EIO_FSTATVFS:
422	{	474	{
423	SV *rv = &PL_sv_undef;	475	SV *rv = &PL_sv_undef;
424		476
		477	#ifndef _WIN32
425	if (req->result >= 0)	478	if (req->result >= 0)
426	{	479	{
427	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
428	HV *hv = newHV ();	481	HV *hv = newHV ();
429		482
…		…
439	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);
440	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);
441	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);
442	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);
443	}	496	}
		497	#endif
444		498
445	PUSHs (rv);	499	PUSHs (rv);
446	}	500	}
447		501
448	break;	502	break;
…		…
464	case EIO_NOP:	518	case EIO_NOP:
465	case EIO_BUSY:	519	case EIO_BUSY:
466	break;	520	break;
467		521
468	case EIO_READLINK:	522	case EIO_READLINK:
		523	case EIO_REALPATH:
469	if (req->result > 0)	524	if (req->result > 0)
470	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	525	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
471	break;	526	break;
472		527
473	case EIO_STAT:	528	case EIO_STAT:
474	case EIO_LSTAT:	529	case EIO_LSTAT:
475	case EIO_FSTAT:	530	case EIO_FSTAT:
476	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	531	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		532
477	PL_laststatval = req->result;	533	if (!(PL_laststatval = req->result))
		534	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
478	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	535	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
479	PUSHs (sv_2mortal (newSViv (req->result)));	536
		537	PUSHs (sv_result);
		538	break;
		539
		540	case EIO_SEEK:
		541	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
480	break;	542	break;
481		543
482	case EIO_READ:	544	case EIO_READ:
483	{	545	{
484	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));
485	*SvEND (req->sv2) = 0;	547	*SvEND (req->sv2) = 0;
486	SvPOK_only (req->sv2);	548	SvPOK_only (req->sv2);
487	SvSETMAGIC (req->sv2);	549	SvSETMAGIC (req->sv2);
488	PUSHs (sv_2mortal (newSViv (req->result)));	550	PUSHs (sv_result);
489	}	551	}
490	break;	552	break;
491		553
492	case EIO_DUP2:	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
		594	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
493	if (req->result > 0)	595	if (req->result > 0)
494	req->result = 0;	596	SvIV_set (sv_result, 0);
495	/* FALLTHROUGH */	597	/* FALLTHROUGH */
496		598
497	default:	599	default:
498	PUSHs (sv_2mortal (newSViv (req->result)));	600	PUSHs (sv_result);
499	break;	601	break;
500	}	602	}
501		603
502	errno = req->errorno;	604	errno = req->errorno;
503		605
504	PUTBACK;	606	PUTBACK;
505	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	607	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
506	SPAGAIN;	608	SPAGAIN;
507		609
		610	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		611	SvREFCNT_dec (sv_result);
		612	else
		613	sv_result_cache = sv_result;
		614
508	FREETMPS;	615	FREETMPS;
509	LEAVE;	616	LEAVE;
510		617
511	PUTBACK;	618	PUTBACK;
512	}	619	}
513		620
514	return !!SvTRUE (ERRSV);	621	return !!SvTRUE (ERRSV);
515	}	622	}
516		623
		624	static void
517	static void req_destroy (aio_req req)	625	req_destroy (aio_req req)
518	{	626	{
519	if (req->self)	627	if (req->self)
520	{	628	{
521	sv_unmagic (req->self, PERL_MAGIC_ext);	629	sv_unmagic (req->self, PERL_MAGIC_ext);
522	SvREFCNT_dec (req->self);	630	SvREFCNT_dec (req->self);
523	}	631	}
524		632
525	SvREFCNT_dec (req->sv1);	633	SvREFCNT_dec (req->sv1);
526	SvREFCNT_dec (req->sv2);	634	SvREFCNT_dec (req->sv2);
		635	SvREFCNT_dec (req->sv3);
		636	SvREFCNT_dec (req->sv4);
527	SvREFCNT_dec (req->callback);	637	SvREFCNT_dec (req->callback);
528		638
529	Safefree (req);	639	free (req);
530	}	640	}
531		641
		642	static void
532	static void req_cancel_subs (aio_req grp)	643	req_cancel_subs (aio_req grp)
533	{	644	{
534	aio_req sub;
535
536	if (grp->type != EIO_GROUP)	645	if (grp->type != EIO_GROUP)
537	return;	646	return;
538		647
539	SvREFCNT_dec (grp->sv2);	648	SvREFCNT_dec (grp->sv2);
540	grp->sv2 = 0;	649	grp->sv2 = 0;
541		650
542	eio_grp_cancel (grp);	651	eio_grp_cancel (grp);
543	}	652	}
544		653
545	static void	654	static void ecb_cold
546	create_respipe (void)	655	create_respipe (void)
547	{	656	{
548	if (s_epipe_renew (&respipe))	657	if (s_epipe_renew (&respipe))
549	croak ("IO::AIO: unable to initialize result pipe");	658	croak ("IO::AIO: unable to initialize result pipe");
550	}	659	}
551		660
552	static void poll_wait (void)	661	static void
		662	poll_wait (void)
553	{	663	{
554	while (eio_nreqs ())	664	while (eio_nreqs ())
555	{	665	{
556	int size;	666	int size;
557		667
…		…
566		676
567	s_epipe_wait (&respipe);	677	s_epipe_wait (&respipe);
568	}	678	}
569	}	679	}
570		680
571	static int poll_cb (void)	681	static int
		682	poll_cb (void)
572	{	683	{
573	for (;;)	684	for (;;)
574	{	685	{
575	int res = eio_poll ();	686	int res = eio_poll ();
576		687
…		…
582		693
583	poll_wait ();	694	poll_wait ();
584	}	695	}
585	}	696	}
586		697
587	static void atfork_child (void)	698	static void ecb_cold
		699	reinit (void)
588	{	700	{
589	create_respipe ();	701	create_respipe ();
		702
		703	if (eio_init (want_poll, done_poll) < 0)
		704	croak ("IO::AIO: unable to initialise eio library");
590	}	705	}
591		706
592	/*****************************************************************************/	707	/*****************************************************************************/
593		708
		709	#if !_POSIX_MAPPED_FILES
		710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		711	# define munmap(addr,length) EIO_ENOSYS ()
		712	#endif
		713
		714	#if !_POSIX_MEMORY_PROTECTION
		715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		716	# define PROT_NONE 0
		717	# define PROT_WRITE 0
		718	# define MAP_PRIVATE 0
		719	# define MAP_SHARED 0
		720	# define MAP_FIXED 0
		721	#endif
		722
594	#define MMAP_MAGIC PERL_MAGIC_ext	723	#define MMAP_MAGIC PERL_MAGIC_ext
595		724
596	static int	725	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	727	{
599	int old_errno = errno;	728	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	730	errno = old_errno;
602		731
603	mg->mg_obj = 0; /* just in case */	732	mg->mg_obj = 0; /* just in case */
604		733
605	SvREADONLY_off (sv);	734	SvREADONLY_off (sv);
		735
		736	if (SvPVX (sv) != mg->mg_ptr)
		737	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		738
606	SvCUR_set (sv, 0);	739	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	740	SvPVX (sv) = 0;
609	SvOK_off (sv);	741	SvOK_off (sv);
610		742
611	return 0;	743	return 0;
612	}	744	}
…		…
622	{	754	{
623	SvGETMAGIC (cb_sv);	755	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	756	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	757	}
626		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
627	#define dREQ \	779	#define dREQ \
628	SV *cb_cv; \	780	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		781
642	#define REQ_SEND \	782	#define REQ_SEND \
643	PUTBACK; \	783	PUTBACK; \
644	req_submit (req); \	784	req_submit (req); \
645	SPAGAIN; \	785	SPAGAIN; \
646	\	786	\
647	if (GIMME_V != G_VOID) \	787	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	788	XPUSHs (req_sv (req, aio_req_stash));
649		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
650	MODULE = IO::AIO PACKAGE = IO::AIO	856	MODULE = IO::AIO PACKAGE = IO::AIO
651		857
652	PROTOTYPES: ENABLE	858	PROTOTYPES: ENABLE
653		859
654	BOOT:	860	BOOT:
…		…
658	IV iv;	864	IV iv;
659	} *civ, const_iv[] = {	865	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	866	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	867	# define const_iv(name) { # name, (IV) name },
662	# 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)
663	const_iv (EXDEV)	873	const_iv (EXDEV)
664	const_iv (ENOSYS)	874	const_iv (EBADR)
		875
665	const_iv (O_RDONLY)	876	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	877	const_iv (O_WRONLY)
		878	const_iv (O_RDWR)
667	const_iv (O_CREAT)	879	const_iv (O_CREAT)
668	const_iv (O_TRUNC)	880	const_iv (O_TRUNC)
669	#ifndef _WIN32	881	const_iv (O_EXCL)
		882	const_iv (O_APPEND)
		883
		884	const_iv (O_ASYNC)
		885	const_iv (O_DIRECT)
		886	const_iv (O_NOATIME)
		887
		888	const_iv (O_CLOEXEC)
		889	const_iv (O_NOCTTY)
		890	const_iv (O_NOFOLLOW)
		891	const_iv (O_NONBLOCK)
		892	const_iv (O_EXEC)
		893	const_iv (O_SEARCH)
		894	const_iv (O_DIRECTORY)
		895	const_iv (O_DSYNC)
		896	const_iv (O_RSYNC)
		897	const_iv (O_SYNC)
		898	const_iv (O_TTY_INIT)
		899
670	const_iv (S_IFIFO)	900	const_iv (S_IFIFO)
671	#endif	901	const_iv (S_IFCHR)
		902	const_iv (S_IFBLK)
		903	const_iv (S_IFLNK)
		904	const_iv (S_IFREG)
		905	const_iv (S_IFDIR)
		906	const_iv (S_IFWHT)
		907	const_iv (S_IFSOCK)
		908	const_iv (S_IFMT)
		909
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	910	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	911	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	912	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	913	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	914	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	915	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		916
		917	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		918	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		919	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		920	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		921	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
678		922
679	const_iv (ST_RDONLY)	923	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	924	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	925	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	926	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	931	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	932	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	933	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	934	const_iv (ST_RELATIME)
691		935
		936	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	937	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	938	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	939	const_iv (PROT_WRITE)
696		940
697	/*const_iv (MAP_FIXED)*/	941	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	942	const_iv (MAP_PRIVATE)
…		…
704	const_iv (MAP_LOCKED)	948	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	949	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	950	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	951	const_iv (MAP_NONBLOCK)
708		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
709	const_iv (MCL_FUTURE)	981	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	982	const_eio (MCL_CURRENT)
711		983
712	const_eio (MS_ASYNC)	984	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	985	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	986	const_eio (MS_SYNC)
715		987
716	const_eio (MT_MODIFY)	988	const_eio (MT_MODIFY)
717		989
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	990	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	991	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		993
		994	const_eio (FALLOC_FL_KEEP_SIZE)
		995	const_eio (FALLOC_FL_PUNCH_HOLE)
721		996
722	const_eio (READDIR_DENTS)	997	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	998	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	999	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1000	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1011	};
737		1012
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1013	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1014	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	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);
741		1017
742	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--)
743	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1019	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1020
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1021	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1022
747	create_respipe ();	1023	reinit ();
748
749	if (eio_init (want_poll, done_poll) < 0)
750	croak ("IO::AIO: unable to initialise eio library");
751
752	/* atfork child called in fifo order, so before eio's handler */
753	X_THREAD_ATFORK (0, 0, atfork_child);
754	}	1024	}
755		1025
756	void	1026	void
		1027	reinit ()
		1028	PROTOTYPE:
		1029
		1030	void
757	max_poll_reqs (int nreqs)	1031	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1032	PROTOTYPE: $
759	CODE:	1033	CODE:
760	eio_set_max_poll_reqs (nreqs);	1034	eio_set_max_poll_reqs (nreqs);
761		1035
762	void	1036	void
…		…
764	PROTOTYPE: $	1038	PROTOTYPE: $
765	CODE:	1039	CODE:
766	eio_set_max_poll_time (nseconds);	1040	eio_set_max_poll_time (nseconds);
767		1041
768	void	1042	void
769	min_parallel (int nthreads)	1043	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1044	PROTOTYPE: $
771	CODE:	1045	CODE:
772	eio_set_min_parallel (nthreads);	1046	eio_set_min_parallel (nthreads);
773		1047
774	void	1048	void
775	max_parallel (int nthreads)	1049	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1050	PROTOTYPE: $
777	CODE:	1051	CODE:
778	eio_set_max_parallel (nthreads);	1052	eio_set_max_parallel (nthreads);
779		1053
780	void	1054	void
781	max_idle (int nthreads)	1055	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1056	PROTOTYPE: $
783	CODE:	1057	CODE:
784	eio_set_max_idle (nthreads);	1058	eio_set_max_idle (nthreads);
785		1059
786	void	1060	void
		1061	idle_timeout (unsigned int seconds)
		1062	PROTOTYPE: $
		1063	CODE:
		1064	eio_set_idle_timeout (seconds);
		1065
		1066	void
787	max_outstanding (int maxreqs)	1067	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1068	PROTOTYPE: $
789	CODE:	1069	CODE:
790	max_outstanding = maxreqs;	1070	max_outstanding = maxreqs;
791		1071
792	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
793	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)
794	PROTOTYPE: $$$;$
795	PPCODE:	1086	PPCODE:
796	{	1087	{
797	dREQ;	1088	dREQ;
798		1089
799	req->type = EIO_OPEN;	1090	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1091	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1092	req->int1 = flags;
803	req->int2 = mode;	1093	req->int2 = mode;
804		1094
805	REQ_SEND;	1095	REQ_SEND;
806	}	1096	}
807		1097
808	void	1098	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1100	ALIAS:
812	aio_fsync = EIO_FSYNC	1101	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1102	aio_fdatasync = EIO_FDATASYNC
		1103	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1104	PPCODE:
815	{	1105	{
816	int fd = s_fileno_croak (fh, 0);	1106	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1107	dREQ;
818		1108
819	req->type = ix;	1109	req->type = ix;
820	req->sv1 = newSVsv (fh);	1110	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1111	req->int1 = fd;
822		1112
823	REQ_SEND (req);	1113	REQ_SEND;
824	}	1114	}
825		1115
826	void	1116	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1117	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1118	PPCODE:
830	{	1119	{
831	int fd = s_fileno_croak (fh, 0);	1120	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1121	dREQ;
833		1122
…		…
836	req->int1 = fd;	1125	req->int1 = fd;
837	req->offs = offset;	1126	req->offs = offset;
838	req->size = nbytes;	1127	req->size = nbytes;
839	req->int2 = flags;	1128	req->int2 = flags;
840		1129
841	REQ_SEND (req);	1130	REQ_SEND;
842	}	1131	}
843		1132
844	void	1133	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1135	PPCODE:
848	{	1136	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1137	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1138	dREQ;
852		1139
853	if (close_pipe < 0)	1140	req->type = EIO_FALLOCATE;
		1141	req->sv1 = newSVsv (fh);
		1142	req->int1 = fd;
		1143	req->int2 = mode;
		1144	req->offs = offset;
		1145	req->size = len;
		1146
		1147	REQ_SEND;
		1148	}
		1149
		1150	void
		1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1152	PPCODE:
		1153	{
		1154	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1155	int fd = s_fileno_croak (fh, 0);
		1156	dREQ;
		1157
		1158	if (expect_false (close_fd < 0))
854	{	1159	{
855	int pipefd [2];	1160	int pipefd [2];
856		1161
		1162	if (
		1163	#ifdef _WIN32
		1164	_pipe (pipefd, 1, _O_BINARY) < 0
		1165	#else
857	if (pipe (pipefd) < 0	1166	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| 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	)
860	abort (); /*D*/	1171	abort (); /*D*/
861		1172
862	close_pipe = pipefd [0];	1173	close_fd = pipefd [0];
863	}	1174	}
864		1175
865	req->type = EIO_DUP2;	1176	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1177	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1178	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1179	req->int2 = fd;
869		1180
870	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;
871	}	1198	}
872		1199
873	void	1200	void
874	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)
875	ALIAS:	1202	ALIAS:
876	aio_read = EIO_READ	1203	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1204	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1205	PPCODE:
880	{	1206	{
881	STRLEN svlen;	1207	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1208	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1209	char *svptr = SvPVbyte (data, svlen);
…		…
897	}	1223	}
898	else	1224	else
899	{	1225	{
900	/* read: check type and grow scalar as necessary */	1226	/* read: check type and grow scalar as necessary */
901	SvUPGRADE (data, SVt_PV);	1227	SvUPGRADE (data, SVt_PV);
		1228	if (SvLEN (data) >= SvCUR (data))
902	svptr = SvGROW (data, len + dataoffset + 1);	1229	svptr = SvGROW (data, len + dataoffset + 1);
		1230	else if (SvCUR (data) < len + dataoffset)
		1231	croak ("length + dataoffset outside of scalar, and cannot grow");
903	}	1232	}
904		1233
905	{	1234	{
906	dREQ;	1235	dREQ;
907		1236
…		…
923	REQ_SEND;	1252	REQ_SEND;
924	}	1253	}
925	}	1254	}
926		1255
927	void	1256	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
929	PROTOTYPE: $$;$	1258	ALIAS:
		1259	aio_readlink = EIO_READLINK
		1260	aio_realpath = EIO_REALPATH
930	PPCODE:	1261	PPCODE:
931	{	1262	{
932	SV *data;
933	dREQ;	1263	dREQ;
934		1264
935	req->type = EIO_READLINK;	1265	req->type = ix;
936	req->sv1 = newSVsv (path);	1266	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1267
939	REQ_SEND;	1268	REQ_SEND;
940	}	1269	}
941		1270
942	void	1271	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1272	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1273	PPCODE:
946	{	1274	{
947	int ifd = s_fileno_croak (in_fh , 0);	1275	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1276	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1277	dREQ;
…		…
959	REQ_SEND;	1287	REQ_SEND;
960	}	1288	}
961		1289
962	void	1290	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1291	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1292	PPCODE:
966	{	1293	{
967	int fd = s_fileno_croak (fh, 0);	1294	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1295	dREQ;
969		1296
…		…
984	aio_statvfs = EIO_STATVFS	1311	aio_statvfs = EIO_STATVFS
985	PPCODE:	1312	PPCODE:
986	{	1313	{
987	dREQ;	1314	dREQ;
988		1315
989	req->sv1 = newSVsv (fh_or_path);	1316	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
990
991	if (SvPOK (req->sv1))
992	{
993	req->type = ix;
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995	}
996	else
997	{
998	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
999	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1000	}
1001		1317
1002	REQ_SEND;	1318	REQ_SEND;
1003	}	1319	}
		1320
		1321	UV
		1322	major (UV dev)
		1323	ALIAS:
		1324	minor = 1
		1325	CODE:
		1326	RETVAL = ix ? major (dev) : minor (dev);
		1327	OUTPUT:
		1328	RETVAL
		1329
		1330	UV
		1331	makedev (UV maj, UV min)
		1332	CODE:
		1333	RETVAL = makedev (maj, min);
		1334	OUTPUT:
		1335	RETVAL
1004		1336
1005	void	1337	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1338	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1007	PPCODE:	1339	PPCODE:
1008	{	1340	{
1009	dREQ;	1341	dREQ;
1010		1342
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1344	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1345	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1014
1015	if (SvPOK (req->sv1))
1016	{
1017	req->type = EIO_UTIME;
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
1019	}
1020	else
1021	{
1022	req->type = EIO_FUTIME;
1023	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1024	}
1025		1346
1026	REQ_SEND;	1347	REQ_SEND;
1027	}	1348	}
1028		1349
1029	void	1350	void
1030	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)
1031	PPCODE:	1352	PPCODE:
1032	{	1353	{
1033	dREQ;	1354	dREQ;
1034		1355
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1357	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_TRUNCATE;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FTRUNCATE;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1358
1049	REQ_SEND;	1359	REQ_SEND;
1050	}	1360	}
1051		1361
1052	void	1362	void
1053	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)
1054	ALIAS:
1055	aio_chmod = EIO_CHMOD
1056	aio_mkdir = EIO_MKDIR
1057	PPCODE:	1364	PPCODE:
1058	{	1365	{
1059	dREQ;	1366	dREQ;
1060		1367
1061	req->int2 = mode;	1368	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1369	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1063
1064	if (SvPOK (req->sv1))
1065	{
1066	req->type = ix;
1067	req->ptr1 = SvPVbyte_nolen (req->sv1);
1068	}
1069	else
1070	{
1071	req->type = EIO_FCHMOD;
1072	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1073	}
1074		1370
1075	REQ_SEND;	1371	REQ_SEND;
1076	}	1372	}
1077		1373
1078	void	1374	void
…		…
1081	{	1377	{
1082	dREQ;	1378	dREQ;
1083		1379
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1381	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1382	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1087
1088	if (SvPOK (req->sv1))
1089	{
1090	req->type = EIO_CHOWN;
1091	req->ptr1 = SvPVbyte_nolen (req->sv1);
1092	}
1093	else
1094	{
1095	req->type = EIO_FCHOWN;
1096	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1097	}
1098		1383
1099	REQ_SEND;	1384	REQ_SEND;
1100	}	1385	}
1101		1386
1102	void	1387	void
…		…
1104	PPCODE:	1389	PPCODE:
1105	{	1390	{
1106	dREQ;	1391	dREQ;
1107		1392
1108	req->type = EIO_READDIR;	1393	req->type = EIO_READDIR;
1109	req->sv1 = newSVsv (pathname);
1110	req->ptr1 = SvPVbyte_nolen (req->sv1);
1111	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1394	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1395
1113	if (flags & EIO_READDIR_DENTS)	1396	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1397	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1398
		1399	req_set_path1 (req, pathname);
		1400
1116	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;
1117	}	1415	}
1118		1416
1119	void	1417	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1418	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1121	ALIAS:	1419	ALIAS:
…		…
1125	PPCODE:	1423	PPCODE:
1126	{	1424	{
1127	dREQ;	1425	dREQ;
1128		1426
1129	req->type = ix;	1427	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1428	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1429
1133	REQ_SEND;	1430	REQ_SEND;
1134	}	1431	}
1135		1432
1136	void	1433	void
…		…
1139	aio_link = EIO_LINK	1436	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1437	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1438	aio_rename = EIO_RENAME
1142	PPCODE:	1439	PPCODE:
1143	{	1440	{
		1441	eio_wd wd2 = 0;
1144	dREQ;	1442	dREQ;
1145		1443
1146	req->type = ix;	1444	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1445	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1447	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1448
1152	REQ_SEND;	1449	REQ_SEND;
1153	}	1450	}
1154		1451
1155	void	1452	void
…		…
1157	PPCODE:	1454	PPCODE:
1158	{	1455	{
1159	dREQ;	1456	dREQ;
1160		1457
1161	req->type = EIO_MKNOD;	1458	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1459	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1460	req->offs = dev;
		1461	req_set_path1 (req, pathname);
1166		1462
1167	REQ_SEND;	1463	REQ_SEND;
1168	}	1464	}
1169		1465
1170	void	1466	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1467	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1172	ALIAS:	1468	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1469	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1470	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1471	PPCODE:
1177	{	1472	{
1178	STRLEN svlen;	1473	STRLEN svlen;
		1474	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1475	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);
1181		1476
1182	if (offset < 0)	1477	if (offset < 0)
1183	offset += svlen;	1478	offset += svlen;
1184		1479
1185	if (offset < 0 || offset > svlen)	1480	if (offset < 0 || offset > svlen)
…		…
1190		1485
1191	{	1486	{
1192	dREQ;	1487	dREQ;
1193		1488
1194	req->type = ix;	1489	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1490	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1491	req->ptr2 = (char *)svptr + offset;
		1492	req->size = len;
1198	req->int1 = flags;	1493	req->int1 = flags;
1199		1494
1200	REQ_SEND;	1495	REQ_SEND;
1201	}	1496	}
1202	}	1497	}
1203		1498
1204	void	1499	void
		1500	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1501	PPCODE:
		1502	{
		1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
		1505	UV len = SvUV (length);
		1506
		1507	if (offset < 0)
		1508	offset += svlen;
		1509
		1510	if (offset < 0 || offset > svlen)
		1511	croak ("offset outside of scalar");
		1512
		1513	if (!SvOK (length) || len + offset > svlen)
		1514	len = svlen - offset;
		1515
		1516	{
		1517	dREQ;
		1518
		1519	req->type = EIO_MLOCK;
		1520	req->sv2 = SvREFCNT_inc (data);
		1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
		1523
		1524	REQ_SEND;
		1525	}
		1526	}
		1527
		1528	void
		1529	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1530	PPCODE:
		1531	{
		1532	dREQ;
		1533
		1534	req->type = EIO_MLOCKALL;
		1535	req->int1 = flags;
		1536
		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;
		1561	}
		1562
		1563	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1564	aio_busy (double delay, SV *callback=&PL_sv_undef)
1206	PPCODE:	1565	PPCODE:
1207	{	1566	{
1208	dREQ;	1567	dREQ;
1209		1568
…		…
1213	REQ_SEND;	1572	REQ_SEND;
1214	}	1573	}
1215		1574
1216	void	1575	void
1217	aio_group (SV *callback=&PL_sv_undef)	1576	aio_group (SV *callback=&PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1577	PPCODE:
1220	{	1578	{
1221	dREQ;	1579	dREQ;
1222		1580
1223	req->type = EIO_GROUP;	1581	req->type = EIO_GROUP;
…		…
1240	REQ_SEND;	1598	REQ_SEND;
1241	}	1599	}
1242		1600
1243	int	1601	int
1244	aioreq_pri (int pri = 0)	1602	aioreq_pri (int pri = 0)
1245	PROTOTYPE: ;$
1246	CODE:	1603	CODE:
1247	RETVAL = next_pri;	1604	RETVAL = next_pri;
1248	if (items > 0)	1605	if (items > 0)
1249	{	1606	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1607	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1619	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1620	next_pri = nice;
1264		1621
1265	void	1622	void
1266	flush ()	1623	flush ()
1267	PROTOTYPE:
1268	CODE:	1624	CODE:
1269	while (eio_nreqs ())	1625	while (eio_nreqs ())
1270	{	1626	{
1271	poll_wait ();	1627	poll_wait ();
1272	poll_cb ();	1628	poll_cb ();
1273	}	1629	}
1274		1630
1275	int	1631	int
1276	poll()	1632	poll ()
1277	PROTOTYPE:
1278	CODE:	1633	CODE:
1279	poll_wait ();	1634	poll_wait ();
1280	RETVAL = poll_cb ();	1635	RETVAL = poll_cb ();
1281	OUTPUT:	1636	OUTPUT:
1282	RETVAL	1637	RETVAL
1283		1638
1284	int	1639	int
1285	poll_fileno()	1640	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1641	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1642	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1643	OUTPUT:
1290	RETVAL	1644	RETVAL
1291		1645
1292	int	1646	int
1293	poll_cb(...)	1647	poll_cb (...)
1294	PROTOTYPE:	1648	PROTOTYPE:
1295	CODE:	1649	CODE:
1296	RETVAL = poll_cb ();	1650	RETVAL = poll_cb ();
1297	OUTPUT:	1651	OUTPUT:
1298	RETVAL	1652	RETVAL
1299		1653
1300	void	1654	void
1301	poll_wait()	1655	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1656	CODE:
1304	poll_wait ();	1657	poll_wait ();
1305		1658
1306	int	1659	int
1307	nreqs()	1660	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1661	CODE:
1310	RETVAL = eio_nreqs ();	1662	RETVAL = eio_nreqs ();
1311	OUTPUT:	1663	OUTPUT:
1312	RETVAL	1664	RETVAL
1313		1665
1314	int	1666	int
1315	nready()	1667	nready ()
1316	PROTOTYPE:
1317	CODE:	1668	CODE:
1318	RETVAL = eio_nready ();	1669	RETVAL = eio_nready ();
1319	OUTPUT:	1670	OUTPUT:
1320	RETVAL	1671	RETVAL
1321		1672
1322	int	1673	int
1323	npending()	1674	npending ()
1324	PROTOTYPE:
1325	CODE:	1675	CODE:
1326	RETVAL = eio_npending ();	1676	RETVAL = eio_npending ();
1327	OUTPUT:	1677	OUTPUT:
1328	RETVAL	1678	RETVAL
1329		1679
1330	int	1680	int
1331	nthreads()	1681	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1682	CODE:
1334	RETVAL = eio_nthreads ();	1683	RETVAL = eio_nthreads ();
1335	OUTPUT:	1684	OUTPUT:
1336	RETVAL	1685	RETVAL
1337		1686
1338	int	1687	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1688	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	1689	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1690	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1691	OUTPUT:
1348	RETVAL	1692	RETVAL
1349		1693
1350	ssize_t	1694	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1695	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1696	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1698	OUTPUT:
1356	RETVAL	1699	RETVAL
1357		1700
1358	void	1701	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1702	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1703	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1704	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1705	{
1364	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;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1708	if (addr == (void *)-1)
1367	XSRETURN_NO;	1709	XSRETURN_NO;
1368		1710
		1711	sv_force_normal (scalar);
		1712
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1713	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1714	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1715	->mg_obj = (SV *)length;
1372		1716
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1717	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1718
1374	if (!(prot & PROT_WRITE))	1719	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1720	SvREADONLY_on (scalar);
		1721
		1722	if (SvLEN (scalar))
		1723	Safefree (SvPVX (scalar));
1376		1724
1377	SvPVX (scalar) = (char *)addr;	1725	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1726	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1727	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1728	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1730	XSRETURN_YES;
1383	}	1731	}
1384		1732
1385	void	1733	void
1386	munmap (SV *scalar)	1734	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1735	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1736	sv_unmagic (scalar, MMAP_MAGIC);
1390		1737
1391	int	1738	int
1392	mlockall (int flags)	1739	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1740	ALIAS:
		1741	mprotect = 1
1394	CODE:	1742	CODE:
		1743	{
		1744	STRLEN svlen;
		1745	void *addr = SvPVbyte (scalar, svlen);
		1746	size_t len = SvUV (length);
		1747
		1748	if (offset < 0)
		1749	offset += svlen;
		1750
		1751	if (offset < 0 || offset > svlen)
		1752	croak ("offset outside of scalar");
		1753
		1754	if (!SvOK (length) || len + offset > svlen)
		1755	len = svlen - offset;
		1756
		1757	addr = (void *)(((intptr_t)addr) + offset);
		1758	eio_page_align (&addr, &len);
		1759
		1760	switch (ix)
		1761	{
		1762	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1763	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1764	}
		1765	}
		1766	OUTPUT:
		1767	RETVAL
		1768
		1769	int
		1770	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1771	CODE:
		1772	{
		1773	STRLEN svlen;
		1774	void *addr = SvPVbyte (scalar, svlen);
		1775	size_t len = SvUV (length);
		1776
		1777	if (offset < 0)
		1778	offset += svlen;
		1779
		1780	if (offset < 0 || offset > svlen)
		1781	croak ("offset outside of scalar");
		1782
		1783	if (!SvOK (length) || len + offset > svlen)
		1784	len = svlen - offset;
		1785
		1786	addr = (void *)(((intptr_t)addr) + offset);
		1787	eio_page_align (&addr, &len);
1395	#if _POSIX_MEMLOCK	1788	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1789	RETVAL = munlock (addr, len);
1397	extern int mallopt (int, int);
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399	#endif
1400	mlockall (flags);
1401	#else	1790	#else
1402	RETVAL = -1;	1791	RETVAL = EIO_ENOSYS ();
1403	errno = ENOSYS;
1404	#endif	1792	#endif
		1793	}
1405	OUTPUT:	1794	OUTPUT:
1406	RETVAL	1795	RETVAL
1407		1796
1408	int	1797	int
1409	munlockall ()	1798	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1799	CODE:
1412	#if _POSIX_MEMLOCK	1800	#if _POSIX_MEMLOCK
1413	munlockall ();	1801	munlockall ();
1414	#else	1802	#else
1415	RETVAL = -1;	1803	RETVAL = EIO_ENOSYS ();
1416	errno = ENOSYS;
1417	#endif	1804	#endif
1418	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:
1419	RETVAL	1835	RETVAL
1420		1836
1421	void _on_next_submit (SV *cb)	1837	void _on_next_submit (SV *cb)
1422	CODE:	1838	CODE:
1423	SvREFCNT_dec (on_next_submit);	1839	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		1841
1426	PROTOTYPES: DISABLE	1842	PROTOTYPES: DISABLE
1427		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
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1872	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		1873
1430	void	1874	void
1431	cancel (aio_req_ornot req)	1875	cancel (aio_req_ornot req)
1432	CODE:	1876	CODE:

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