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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.165 by root, Sun May 9 20:42:55 2010 UTC vs.
Revision 1.215 by root, Sun Jun 17 17:07:25 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>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
23	#endif	31	#endif
24		32
25	/* perl namespace pollution */	33	/* perl namespace pollution */
26	#undef VERSION	34	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		35
77	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	38	#undef readdir
80	#undef opendir	39	#undef opendir
81	#undef closedir	40	#undef closedir
82		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	79	#else
91	# define VAL64 NV	80
92	# define SvVAL64 SvNV	81	#include <sys/time.h>
93	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
94	#endif	89	#endif
95		90
96	/*****************************************************************************/	91	/*****************************************************************************/
97		92
98	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
108		103
109	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
112		107
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		109
115	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
116	SV *callback; \	111	SV *callback; \
117	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
118	STRLEN stroffset; \	114	STRLEN stroffset; \
119	SV *self;	115	SV *self;
120		116
121	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
122		118
		119	#include "libeio/config.h"
123	#include "libeio/eio.h"	120	#include "libeio/eio.h"
124		121
125	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
128	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		126
145	#ifndef ST_NODEV	127	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		128
176	#ifndef MCL_CURRENT	129	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	131	#endif
179	#ifndef MCL_FUTURE	132
180	# define MCL_FUTURE 0	133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	135	#endif
182		136
183	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	138	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
186	# else	140	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	142	# endif
189	#endif	143	#endif
190	#ifndef MAP_HUGETLB	144
191	# 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))
192	#endif	150	#endif
193	#ifndef MAP_LOCKED	151	#ifndef major
194	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
195	#endif	153	#endif
196	#ifndef MAP_NORESERVE	154	#ifndef minor
197	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif	156	#endif
205		157
206	#ifndef PAGESIZE	158	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	160	#endif
209		161
210	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	163
212	static void req_destroy (eio_req *grp);	164	static void
213	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 64 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
214		221
215	enum {	222	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	224	};
218		225
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
223		229
224	static SV *on_next_submit;	230	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	232	static int max_outstanding;
227		233
228	static s_epipe respipe;	234	static s_epipe respipe;
229		235
230	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
232		238
233	static void want_poll (void)	239	static void
		240	want_poll (void)
234	{	241	{
235	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
237	}	244	}
238		245
239	static void done_poll (void)	246	static void
		247	done_poll (void)
240	{	248	{
241	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
243	}	251	}
244		252
245	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
247	{	256	{
248	if (!req->self)	257	if (!req->self)
249	{	258	{
250	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	261	}
253		262
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	264	}
256		265
257	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
258	{	274	{
259	MAGIC *mg;	275	MAGIC *mg;
260		276
261	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
266		283
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		285
269	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	287	}
271		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
272	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
273	{	302	{
274	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
275	{	304	{
276	dSP;	305	dSP;
277		306
…		…
285	FREETMPS;	314	FREETMPS;
286	LEAVE;	315	LEAVE;
287	}	316	}
288	}	317	}
289		318
		319	static void
290	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
291	{	321	{
292	eio_submit (req);	322	eio_submit (req);
293		323
294	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
295	{	325	{
…		…
302	PUTBACK;	332	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
304	}	334	}
305	}	335	}
306		336
		337	static int
307	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
308	{	339	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
313		342
314	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
315	{	344	{
		345	dSP;
316	static SV *sv_result_cache; /* caches the result integer SV */	346	static SV *sv_result_cache; /* caches the result integer SV */
317	SV *sv_result;	347	SV *sv_result;
318		348
319	ENTER;	349	ENTER;
320	SAVETMPS;	350	SAVETMPS;
…		…
324	/* do not recreate the result IV from scratch each time */	354	/* do not recreate the result IV from scratch each time */
325	if (expect_true (sv_result_cache))	355	if (expect_true (sv_result_cache))
326	{	356	{
327	sv_result = sv_result_cache; sv_result_cache = 0;	357	sv_result = sv_result_cache; sv_result_cache = 0;
328	SvIV_set (sv_result, req->result);	358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
329	}	360	}
330	else	361	else
331	{	362	{
332	sv_result = newSViv (req->result);	363	sv_result = newSViv (req->result);
333	SvREADONLY_on (sv_result);	364	SvREADONLY_on (sv_result);
334	}	365	}
335		366
336	switch (req->type)	367	switch (req->type)
337	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
338	case EIO_READDIR:	373	case EIO_READDIR:
339	{	374	{
340	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
341		376
342	if (req->result >= 0)	377	if (req->result >= 0)
…		…
430	case EIO_STATVFS:	465	case EIO_STATVFS:
431	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
432	{	467	{
433	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
434		469
		470	#ifndef _WIN32
435	if (req->result >= 0)	471	if (req->result >= 0)
436	{	472	{
437	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
438	HV *hv = newHV ();	474	HV *hv = newHV ();
439		475
…		…
449	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
450	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
451	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
452	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
453	}	489	}
		490	#endif
454		491
455	PUSHs (rv);	492	PUSHs (rv);
456	}	493	}
457		494
458	break;	495	break;
…		…
474	case EIO_NOP:	511	case EIO_NOP:
475	case EIO_BUSY:	512	case EIO_BUSY:
476	break;	513	break;
477		514
478	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
479	if (req->result > 0)	517	if (req->result > 0)
480	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
481	break;	519	break;
482		520
483	case EIO_STAT:	521	case EIO_STAT:
484	case EIO_LSTAT:	522	case EIO_LSTAT:
485	case EIO_FSTAT:	523	case EIO_FSTAT:
486	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
487	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
488	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		529
489	PUSHs (sv_result);	530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
490	break;	535	break;
491		536
492	case EIO_READ:	537	case EIO_READ:
493	{	538	{
494	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
497	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
498	PUSHs (sv_result);	543	PUSHs (sv_result);
499	}	544	}
500	break;	545	break;
501		546
502	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
503	if (req->result > 0)	588	if (req->result > 0)
504	SvIV_set (sv_result, 0);	589	SvIV_set (sv_result, 0);
505	/* FALLTHROUGH */	590	/* FALLTHROUGH */
506		591
507	default:	592	default:
…		…
527	}	612	}
528		613
529	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
530	}	615	}
531		616
		617	static void
532	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
533	{	619	{
534	if (req->self)	620	if (req->self)
535	{	621	{
536	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
537	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
538	}	624	}
539		625
540	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
541	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
542	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
543		631
544	Safefree (req);	632	free (req);
545	}	633	}
546		634
		635	static void
547	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
548	{	637	{
549	aio_req sub;
550
551	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
552	return;	639	return;
553		640
554	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
555	grp->sv2 = 0;	642	grp->sv2 = 0;
556		643
557	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
558	}	645	}
559		646
560	static void	647	static void ecb_cold
561	create_respipe (void)	648	create_respipe (void)
562	{	649	{
563	if (s_epipe_renew (&respipe))	650	if (s_epipe_renew (&respipe))
564	croak ("IO::AIO: unable to initialize result pipe");	651	croak ("IO::AIO: unable to initialize result pipe");
565	}	652	}
566		653
567	static void poll_wait (void)	654	static void
		655	poll_wait (void)
568	{	656	{
569	while (eio_nreqs ())	657	while (eio_nreqs ())
570	{	658	{
571	int size;	659	int size;
572		660
…		…
581		669
582	s_epipe_wait (&respipe);	670	s_epipe_wait (&respipe);
583	}	671	}
584	}	672	}
585		673
586	static int poll_cb (void)	674	static int
		675	poll_cb (void)
587	{	676	{
588	for (;;)	677	for (;;)
589	{	678	{
590	int res = eio_poll ();	679	int res = eio_poll ();
591		680
…		…
597		686
598	poll_wait ();	687	poll_wait ();
599	}	688	}
600	}	689	}
601		690
602	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
603	{	693	{
604	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
605	}	698	}
606		699
607	/*****************************************************************************/	700	/*****************************************************************************/
608		701
609	#if !_POSIX_MAPPED_FILES	702	#if !_POSIX_MAPPED_FILES
610	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
611	# define munmap(addr,length) (errno = ENOSYS, -1)	704	# define munmap(addr,length) EIO_ENOSYS ()
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
612	#endif	714	#endif
613		715
614	#define MMAP_MAGIC PERL_MAGIC_ext	716	#define MMAP_MAGIC PERL_MAGIC_ext
615		717
616	static int	718	static int ecb_cold
617	mmap_free (pTHX_ SV *sv, MAGIC *mg)	719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
618	{	720	{
619	int old_errno = errno;	721	int old_errno = errno;
620	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
621	errno = old_errno;	723	errno = old_errno;
622		724
623	mg->mg_obj = 0; /* just in case */	725	mg->mg_obj = 0; /* just in case */
624		726
625	SvREADONLY_off (sv);	727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
626	SvCUR_set (sv, 0);	732	SvCUR_set (sv, 0);
627	SvLEN_set (sv, 0);
628	SvPVX (sv) = 0;	733	SvPVX (sv) = 0;
629	SvOK_off (sv);	734	SvOK_off (sv);
630		735
631	return 0;	736	return 0;
632	}	737	}
…		…
642	{	747	{
643	SvGETMAGIC (cb_sv);	748	SvGETMAGIC (cb_sv);
644	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
645	}	750	}
646		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
		770	}
		771
647	#define dREQ \	772	#define dREQ \
648	SV *cb_cv; \	773	aio_req req = dreq (callback); \
649	aio_req req; \
650	int req_pri = next_pri; \
651	next_pri = EIO_PRI_DEFAULT; \
652	\
653	cb_cv = get_cb (callback); \
654	\
655	Newz (0, req, 1, eio_req); \
656	if (!req) \
657	croak ("out of memory during eio_req allocation"); \
658	\
659	req->callback = SvREFCNT_inc (cb_cv); \
660	req->pri = req_pri
661		774
662	#define REQ_SEND \	775	#define REQ_SEND \
663	PUTBACK; \	776	PUTBACK; \
664	req_submit (req); \	777	req_submit (req); \
665	SPAGAIN; \	778	SPAGAIN; \
666	\	779	\
667	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
668	XPUSHs (req_sv (req, aio_req_stash));	781	XPUSHs (req_sv (req, aio_req_stash));
669		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
		848
670	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
671		850
672	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
673		852
674	BOOT:	853	BOOT:
…		…
678	IV iv;	857	IV iv;
679	} *civ, const_iv[] = {	858	} *civ, const_iv[] = {
680	# define const_niv(name, value) { # name, (IV) value },	859	# define const_niv(name, value) { # name, (IV) value },
681	# define const_iv(name) { # name, (IV) name },	860	# define const_iv(name) { # name, (IV) name },
682	# define const_eio(name) { # name, (IV) EIO_ ## name },	861	# define const_eio(name) { # name, (IV) EIO_ ## name },
		862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
		865	const_iv (ENOSYS)
683	const_iv (EXDEV)	866	const_iv (EXDEV)
684	const_iv (ENOSYS)	867	const_iv (EBADR)
		868
685	const_iv (O_RDONLY)	869	const_iv (O_RDONLY)
686	const_iv (O_WRONLY)	870	const_iv (O_WRONLY)
687	const_iv (O_RDWR)	871	const_iv (O_RDWR)
688	const_iv (O_CREAT)	872	const_iv (O_CREAT)
689	const_iv (O_TRUNC)	873	const_iv (O_TRUNC)
690	const_iv (O_EXCL)	874	const_iv (O_EXCL)
691	const_iv (O_APPEND)	875	const_iv (O_APPEND)
692	#ifndef _WIN32	876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
693	const_iv (S_IFIFO)	893	const_iv (S_IFIFO)
694	#endif	894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
695	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
696	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
697	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
698	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
699	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
700	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
701		915
702	const_iv (ST_RDONLY)	916	const_iv (ST_RDONLY)
703	const_iv (ST_NOSUID)	917	const_iv (ST_NOSUID)
704	const_iv (ST_NODEV)	918	const_iv (ST_NODEV)
705	const_iv (ST_NOEXEC)	919	const_iv (ST_NOEXEC)
…		…
710	const_iv (ST_IMMUTABLE)	924	const_iv (ST_IMMUTABLE)
711	const_iv (ST_NOATIME)	925	const_iv (ST_NOATIME)
712	const_iv (ST_NODIRATIME)	926	const_iv (ST_NODIRATIME)
713	const_iv (ST_RELATIME)	927	const_iv (ST_RELATIME)
714		928
		929	const_iv (PROT_NONE)
715	const_iv (PROT_EXEC)	930	const_iv (PROT_EXEC)
716	const_iv (PROT_NONE)
717	const_iv (PROT_READ)	931	const_iv (PROT_READ)
718	const_iv (PROT_WRITE)	932	const_iv (PROT_WRITE)
719		933
720	/*const_iv (MAP_FIXED)*/	934	/*const_iv (MAP_FIXED)*/
721	const_iv (MAP_PRIVATE)	935	const_iv (MAP_PRIVATE)
…		…
727	const_iv (MAP_LOCKED)	941	const_iv (MAP_LOCKED)
728	const_iv (MAP_NORESERVE)	942	const_iv (MAP_NORESERVE)
729	const_iv (MAP_POPULATE)	943	const_iv (MAP_POPULATE)
730	const_iv (MAP_NONBLOCK)	944	const_iv (MAP_NONBLOCK)
731		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_iv (SPLICE_F_MOVE)
		962	const_iv (SPLICE_F_NONBLOCK)
		963	const_iv (SPLICE_F_MORE)
		964	const_iv (SPLICE_F_GIFT)
		965
		966	const_iv (SEEK_DATA)
		967	const_iv (SEEK_HOLE)
		968
		969	/* libeio constants */
		970	const_eio (SEEK_SET)
		971	const_eio (SEEK_CUR)
		972	const_eio (SEEK_END)
		973
732	const_iv (MCL_FUTURE)	974	const_eio (MCL_FUTURE)
733	const_iv (MCL_CURRENT)	975	const_eio (MCL_CURRENT)
734		976
735	const_eio (MS_ASYNC)	977	const_eio (MS_ASYNC)
736	const_eio (MS_INVALIDATE)	978	const_eio (MS_INVALIDATE)
737	const_eio (MS_SYNC)	979	const_eio (MS_SYNC)
738		980
739	const_eio (MT_MODIFY)	981	const_eio (MT_MODIFY)
740		982
741	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
742	const_eio (SYNC_FILE_RANGE_WRITE)	984	const_eio (SYNC_FILE_RANGE_WRITE)
743	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		986
		987	const_eio (FALLOC_FL_KEEP_SIZE)
744		988
745	const_eio (READDIR_DENTS)	989	const_eio (READDIR_DENTS)
746	const_eio (READDIR_DIRS_FIRST)	990	const_eio (READDIR_DIRS_FIRST)
747	const_eio (READDIR_STAT_ORDER)	991	const_eio (READDIR_STAT_ORDER)
748	const_eio (READDIR_FOUND_UNKNOWN)	992	const_eio (READDIR_FOUND_UNKNOWN)
…		…
759	};	1003	};
760		1004
761	aio_stash = gv_stashpv ("IO::AIO" , 1);	1005	aio_stash = gv_stashpv ("IO::AIO" , 1);
762	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1006	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
763	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1007	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1008	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
764		1009
765	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1010	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
766	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1011	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
767		1012
768	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1013	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
769		1014
770	create_respipe ();	1015	reinit ();
771
772	if (eio_init (want_poll, done_poll) < 0)
773	croak ("IO::AIO: unable to initialise eio library");
774
775	/* atfork child called in fifo order, so before eio's handler */
776	X_THREAD_ATFORK (0, 0, atfork_child);
777	}	1016	}
778		1017
779	void	1018	void
		1019	reinit ()
		1020	PROTOTYPE:
		1021
		1022	void
780	max_poll_reqs (int nreqs)	1023	max_poll_reqs (unsigned int nreqs)
781	PROTOTYPE: $	1024	PROTOTYPE: $
782	CODE:	1025	CODE:
783	eio_set_max_poll_reqs (nreqs);	1026	eio_set_max_poll_reqs (nreqs);
784		1027
785	void	1028	void
…		…
787	PROTOTYPE: $	1030	PROTOTYPE: $
788	CODE:	1031	CODE:
789	eio_set_max_poll_time (nseconds);	1032	eio_set_max_poll_time (nseconds);
790		1033
791	void	1034	void
792	min_parallel (int nthreads)	1035	min_parallel (unsigned int nthreads)
793	PROTOTYPE: $	1036	PROTOTYPE: $
794	CODE:	1037	CODE:
795	eio_set_min_parallel (nthreads);	1038	eio_set_min_parallel (nthreads);
796		1039
797	void	1040	void
798	max_parallel (int nthreads)	1041	max_parallel (unsigned int nthreads)
799	PROTOTYPE: $	1042	PROTOTYPE: $
800	CODE:	1043	CODE:
801	eio_set_max_parallel (nthreads);	1044	eio_set_max_parallel (nthreads);
802		1045
803	void	1046	void
804	max_idle (int nthreads)	1047	max_idle (unsigned int nthreads)
805	PROTOTYPE: $	1048	PROTOTYPE: $
806	CODE:	1049	CODE:
807	eio_set_max_idle (nthreads);	1050	eio_set_max_idle (nthreads);
808		1051
809	void	1052	void
		1053	idle_timeout (unsigned int seconds)
		1054	PROTOTYPE: $
		1055	CODE:
		1056	eio_set_idle_timeout (seconds);
		1057
		1058	void
810	max_outstanding (int maxreqs)	1059	max_outstanding (unsigned int maxreqs)
811	PROTOTYPE: $	1060	PROTOTYPE: $
812	CODE:	1061	CODE:
813	max_outstanding = maxreqs;	1062	max_outstanding = maxreqs;
814		1063
815	void	1064	void
		1065	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1066	PPCODE:
		1067	{
		1068	dREQ;
		1069
		1070	req->type = EIO_WD_OPEN;
		1071	req_set_path1 (req, pathname);
		1072
		1073	REQ_SEND;
		1074	}
		1075
		1076	void
816	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1077	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1078	PPCODE:
819	{	1079	{
820	dREQ;	1080	dREQ;
821		1081
822	req->type = EIO_OPEN;	1082	req->type = EIO_OPEN;
823	req->sv1 = newSVsv (pathname);	1083	req_set_path1 (req, pathname);
824	req->ptr1 = SvPVbyte_nolen (req->sv1);
825	req->int1 = flags;	1084	req->int1 = flags;
826	req->int2 = mode;	1085	req->int2 = mode;
827		1086
828	REQ_SEND;	1087	REQ_SEND;
829	}	1088	}
830		1089
831	void	1090	void
832	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1091	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
833	PROTOTYPE: $;$
834	ALIAS:	1092	ALIAS:
835	aio_fsync = EIO_FSYNC	1093	aio_fsync = EIO_FSYNC
836	aio_fdatasync = EIO_FDATASYNC	1094	aio_fdatasync = EIO_FDATASYNC
		1095	aio_syncfs = EIO_SYNCFS
837	PPCODE:	1096	PPCODE:
838	{	1097	{
839	int fd = s_fileno_croak (fh, 0);	1098	int fd = s_fileno_croak (fh, 0);
840	dREQ;	1099	dREQ;
841		1100
842	req->type = ix;	1101	req->type = ix;
843	req->sv1 = newSVsv (fh);	1102	req->sv1 = newSVsv (fh);
844	req->int1 = fd;	1103	req->int1 = fd;
845		1104
846	REQ_SEND (req);	1105	REQ_SEND;
847	}	1106	}
848		1107
849	void	1108	void
850	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1109	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
851	PROTOTYPE: $$$$;$
852	PPCODE:	1110	PPCODE:
853	{	1111	{
854	int fd = s_fileno_croak (fh, 0);	1112	int fd = s_fileno_croak (fh, 0);
855	dREQ;	1113	dREQ;
856		1114
…		…
859	req->int1 = fd;	1117	req->int1 = fd;
860	req->offs = offset;	1118	req->offs = offset;
861	req->size = nbytes;	1119	req->size = nbytes;
862	req->int2 = flags;	1120	req->int2 = flags;
863		1121
864	REQ_SEND (req);	1122	REQ_SEND;
865	}	1123	}
866		1124
867	void	1125	void
868	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1126	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
869	PROTOTYPE: $;$
870	PPCODE:	1127	PPCODE:
871	{	1128	{
872	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
873	int fd = s_fileno_croak (fh, 0);	1129	int fd = s_fileno_croak (fh, 0);
874	dREQ;	1130	dREQ;
875		1131
876	if (close_pipe < 0)	1132	req->type = EIO_FALLOCATE;
		1133	req->sv1 = newSVsv (fh);
		1134	req->int1 = fd;
		1135	req->int2 = mode;
		1136	req->offs = offset;
		1137	req->size = len;
		1138
		1139	REQ_SEND;
		1140	}
		1141
		1142	void
		1143	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1144	PPCODE:
		1145	{
		1146	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1147	int fd = s_fileno_croak (fh, 0);
		1148	dREQ;
		1149
		1150	if (expect_false (close_fd < 0))
877	{	1151	{
878	int pipefd [2];	1152	int pipefd [2];
879		1153
		1154	if (
		1155	#ifdef _WIN32
		1156	_pipe (pipefd, 1, _O_BINARY) < 0
		1157	#else
880	if (pipe (pipefd) < 0	1158	pipe (pipefd) < 0
881	|| close (pipefd [1]) < 0
882	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1159	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1160	#endif
		1161	|| close (pipefd [1]) < 0
		1162	)
883	abort (); /*D*/	1163	abort (); /*D*/
884		1164
885	close_pipe = pipefd [0];	1165	close_fd = pipefd [0];
886	}	1166	}
887		1167
888	req->type = EIO_DUP2;	1168	req->type = EIO_DUP2;
889	req->int1 = close_pipe;	1169	req->int1 = close_fd;
890	req->sv2 = newSVsv (fh);	1170	req->sv2 = newSVsv (fh);
891	req->int2 = fd;	1171	req->int2 = fd;
892		1172
893	REQ_SEND (req);	1173	REQ_SEND;
		1174	}
		1175
		1176	void
		1177	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1178	PPCODE:
		1179	{
		1180	int fd = s_fileno_croak (fh, 0);
		1181	dREQ;
		1182
		1183	req->type = EIO_SEEK;
		1184	req->sv1 = newSVsv (fh);
		1185	req->int1 = fd;
		1186	req->offs = SvVAL64 (offset);
		1187	req->int2 = whence;
		1188
		1189	REQ_SEND;
894	}	1190	}
895		1191
896	void	1192	void
897	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1193	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
898	ALIAS:	1194	ALIAS:
899	aio_read = EIO_READ	1195	aio_read = EIO_READ
900	aio_write = EIO_WRITE	1196	aio_write = EIO_WRITE
901	PROTOTYPE: $$$$$;$
902	PPCODE:	1197	PPCODE:
903	{	1198	{
904	STRLEN svlen;	1199	STRLEN svlen;
905	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1200	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
906	char *svptr = SvPVbyte (data, svlen);	1201	char *svptr = SvPVbyte (data, svlen);
…		…
920	}	1215	}
921	else	1216	else
922	{	1217	{
923	/* read: check type and grow scalar as necessary */	1218	/* read: check type and grow scalar as necessary */
924	SvUPGRADE (data, SVt_PV);	1219	SvUPGRADE (data, SVt_PV);
		1220	if (SvLEN (data) >= SvCUR (data))
925	svptr = SvGROW (data, len + dataoffset + 1);	1221	svptr = SvGROW (data, len + dataoffset + 1);
		1222	else if (SvCUR (data) < len + dataoffset)
		1223	croak ("length + dataoffset outside of scalar, and cannot grow");
926	}	1224	}
927		1225
928	{	1226	{
929	dREQ;	1227	dREQ;
930		1228
…		…
946	REQ_SEND;	1244	REQ_SEND;
947	}	1245	}
948	}	1246	}
949		1247
950	void	1248	void
951	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1249	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
952	PROTOTYPE: $$;$	1250	ALIAS:
		1251	aio_readlink = EIO_READLINK
		1252	aio_realpath = EIO_REALPATH
953	PPCODE:	1253	PPCODE:
954	{	1254	{
955	SV *data;
956	dREQ;	1255	dREQ;
957		1256
958	req->type = EIO_READLINK;	1257	req->type = ix;
959	req->sv1 = newSVsv (path);	1258	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1259
962	REQ_SEND;	1260	REQ_SEND;
963	}	1261	}
964		1262
965	void	1263	void
966	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1264	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
967	PROTOTYPE: $$$$;$
968	PPCODE:	1265	PPCODE:
969	{	1266	{
970	int ifd = s_fileno_croak (in_fh , 0);	1267	int ifd = s_fileno_croak (in_fh , 0);
971	int ofd = s_fileno_croak (out_fh, 1);	1268	int ofd = s_fileno_croak (out_fh, 1);
972	dREQ;	1269	dREQ;
…		…
982	REQ_SEND;	1279	REQ_SEND;
983	}	1280	}
984		1281
985	void	1282	void
986	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1283	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
987	PROTOTYPE: $$$;$
988	PPCODE:	1284	PPCODE:
989	{	1285	{
990	int fd = s_fileno_croak (fh, 0);	1286	int fd = s_fileno_croak (fh, 0);
991	dREQ;	1287	dREQ;
992		1288
…		…
1007	aio_statvfs = EIO_STATVFS	1303	aio_statvfs = EIO_STATVFS
1008	PPCODE:	1304	PPCODE:
1009	{	1305	{
1010	dREQ;	1306	dREQ;
1011		1307
1012	req->sv1 = newSVsv (fh_or_path);	1308	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1013
1014	if (SvPOK (req->sv1))
1015	{
1016	req->type = ix;
1017	req->ptr1 = SvPVbyte_nolen (req->sv1);
1018	}
1019	else
1020	{
1021	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1022	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1023	}
1024		1309
1025	REQ_SEND;	1310	REQ_SEND;
1026	}	1311	}
		1312
		1313	UV
		1314	major (UV dev)
		1315	ALIAS:
		1316	minor = 1
		1317	CODE:
		1318	RETVAL = ix ? major (dev) : minor (dev);
		1319	OUTPUT:
		1320	RETVAL
		1321
		1322	UV
		1323	makedev (UV maj, UV min)
		1324	CODE:
		1325	RETVAL = makedev (maj, min);
		1326	OUTPUT:
		1327	RETVAL
1027		1328
1028	void	1329	void
1029	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1330	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1030	PPCODE:	1331	PPCODE:
1031	{	1332	{
1032	dREQ;	1333	dREQ;
1033		1334
1034	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1335	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1035	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1336	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1036	req->sv1 = newSVsv (fh_or_path);	1337	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1037
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_UTIME;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FUTIME;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1338
1049	REQ_SEND;	1339	REQ_SEND;
1050	}	1340	}
1051		1341
1052	void	1342	void
1053	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1343	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1054	PPCODE:	1344	PPCODE:
1055	{	1345	{
1056	dREQ;	1346	dREQ;
1057		1347
1058	req->sv1 = newSVsv (fh_or_path);
1059	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1348	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1060		1349	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1061	if (SvPOK (req->sv1))
1062	{
1063	req->type = EIO_TRUNCATE;
1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
1065	}
1066	else
1067	{
1068	req->type = EIO_FTRUNCATE;
1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1070	}
1071		1350
1072	REQ_SEND;	1351	REQ_SEND;
1073	}	1352	}
1074		1353
1075	void	1354	void
1076	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1355	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1077	ALIAS:
1078	aio_chmod = EIO_CHMOD
1079	aio_mkdir = EIO_MKDIR
1080	PPCODE:	1356	PPCODE:
1081	{	1357	{
1082	dREQ;	1358	dREQ;
1083		1359
1084	req->int2 = mode;	1360	req->int2 = mode;
1085	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1086
1087	if (SvPOK (req->sv1))
1088	{
1089	req->type = ix;
1090	req->ptr1 = SvPVbyte_nolen (req->sv1);
1091	}
1092	else
1093	{
1094	req->type = EIO_FCHMOD;
1095	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1096	}
1097		1362
1098	REQ_SEND;	1363	REQ_SEND;
1099	}	1364	}
1100		1365
1101	void	1366	void
…		…
1104	{	1369	{
1105	dREQ;	1370	dREQ;
1106		1371
1107	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1372	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1108	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1373	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1109	req->sv1 = newSVsv (fh_or_path);	1374	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1110
1111	if (SvPOK (req->sv1))
1112	{
1113	req->type = EIO_CHOWN;
1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
1115	}
1116	else
1117	{
1118	req->type = EIO_FCHOWN;
1119	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1120	}
1121		1375
1122	REQ_SEND;	1376	REQ_SEND;
1123	}	1377	}
1124		1378
1125	void	1379	void
…		…
1127	PPCODE:	1381	PPCODE:
1128	{	1382	{
1129	dREQ;	1383	dREQ;
1130		1384
1131	req->type = EIO_READDIR;	1385	req->type = EIO_READDIR;
1132	req->sv1 = newSVsv (pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1386	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1135		1387
1136	if (flags & EIO_READDIR_DENTS)	1388	if (flags & EIO_READDIR_DENTS)
1137	req->int1 |= EIO_READDIR_CUSTOM2;	1389	req->int1 |= EIO_READDIR_CUSTOM2;
1138		1390
		1391	req_set_path1 (req, pathname);
		1392
1139	REQ_SEND;	1393	REQ_SEND;
		1394	}
		1395
		1396	void
		1397	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1398	PPCODE:
		1399	{
		1400	dREQ;
		1401
		1402	req->type = EIO_MKDIR;
		1403	req->int2 = mode;
		1404	req_set_path1 (req, pathname);
		1405
		1406	REQ_SEND;
1140	}	1407	}
1141		1408
1142	void	1409	void
1143	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1410	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1144	ALIAS:	1411	ALIAS:
…		…
1148	PPCODE:	1415	PPCODE:
1149	{	1416	{
1150	dREQ;	1417	dREQ;
1151		1418
1152	req->type = ix;	1419	req->type = ix;
1153	req->sv1 = newSVsv (pathname);	1420	req_set_path1 (req, pathname);
1154	req->ptr1 = SvPVbyte_nolen (req->sv1);
1155		1421
1156	REQ_SEND;	1422	REQ_SEND;
1157	}	1423	}
1158		1424
1159	void	1425	void
…		…
1162	aio_link = EIO_LINK	1428	aio_link = EIO_LINK
1163	aio_symlink = EIO_SYMLINK	1429	aio_symlink = EIO_SYMLINK
1164	aio_rename = EIO_RENAME	1430	aio_rename = EIO_RENAME
1165	PPCODE:	1431	PPCODE:
1166	{	1432	{
		1433	eio_wd wd2 = 0;
1167	dREQ;	1434	dREQ;
1168		1435
1169	req->type = ix;	1436	req->type = ix;
1170	req->sv1 = newSVsv (oldpath);	1437	req_set_path1 (req, oldpath);
1171	req->ptr1 = SvPVbyte_nolen (req->sv1);	1438	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1172	req->sv2 = newSVsv (newpath);	1439	req->int3 = (long)wd2;
1173	req->ptr2 = SvPVbyte_nolen (req->sv2);
1174		1440
1175	REQ_SEND;	1441	REQ_SEND;
1176	}	1442	}
1177		1443
1178	void	1444	void
…		…
1180	PPCODE:	1446	PPCODE:
1181	{	1447	{
1182	dREQ;	1448	dREQ;
1183		1449
1184	req->type = EIO_MKNOD;	1450	req->type = EIO_MKNOD;
1185	req->sv1 = newSVsv (pathname);
1186	req->ptr1 = SvPVbyte_nolen (req->sv1);
1187	req->int2 = (mode_t)mode;	1451	req->int2 = (mode_t)mode;
1188	req->offs = dev;	1452	req->offs = dev;
		1453	req_set_path1 (req, pathname);
1189		1454
1190	REQ_SEND;	1455	REQ_SEND;
1191	}	1456	}
1192		1457
1193	void	1458	void
1194	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1459	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1195	ALIAS:	1460	ALIAS:
1196	aio_mtouch = EIO_MTOUCH	1461	aio_mtouch = EIO_MTOUCH
1197	aio_msync = EIO_MSYNC	1462	aio_msync = EIO_MSYNC
1198	PROTOTYPE: $$$$;$
1199	PPCODE:	1463	PPCODE:
1200	{	1464	{
1201	STRLEN svlen;	1465	STRLEN svlen;
		1466	char *svptr = SvPVbyte (data, svlen);
1202	UV len = SvUV (length);	1467	UV len = SvUV (length);
1203	char *svptr = SvPVbyte (data, svlen);
1204		1468
1205	if (offset < 0)	1469	if (offset < 0)
1206	offset += svlen;	1470	offset += svlen;
1207		1471
1208	if (offset < 0 || offset > svlen)	1472	if (offset < 0 || offset > svlen)
…		…
1213		1477
1214	{	1478	{
1215	dREQ;	1479	dREQ;
1216		1480
1217	req->type = ix;	1481	req->type = ix;
1218	req->size = len;
1219	req->sv2 = SvREFCNT_inc (data);	1482	req->sv2 = SvREFCNT_inc (data);
1220	req->ptr2 = (char *)svptr + offset;	1483	req->ptr2 = (char *)svptr + offset;
		1484	req->size = len;
1221	req->int1 = flags;	1485	req->int1 = flags;
1222		1486
1223	REQ_SEND;	1487	REQ_SEND;
1224	}	1488	}
1225	}	1489	}
1226		1490
1227	void	1491	void
		1492	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1493	PPCODE:
		1494	{
		1495	STRLEN svlen;
		1496	char *svptr = SvPVbyte (data, svlen);
		1497	UV len = SvUV (length);
		1498
		1499	if (offset < 0)
		1500	offset += svlen;
		1501
		1502	if (offset < 0 || offset > svlen)
		1503	croak ("offset outside of scalar");
		1504
		1505	if (!SvOK (length) || len + offset > svlen)
		1506	len = svlen - offset;
		1507
		1508	{
		1509	dREQ;
		1510
		1511	req->type = EIO_MLOCK;
		1512	req->sv2 = SvREFCNT_inc (data);
		1513	req->ptr2 = (char *)svptr + offset;
		1514	req->size = len;
		1515
		1516	REQ_SEND;
		1517	}
		1518	}
		1519
		1520	void
		1521	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1522	PPCODE:
		1523	{
		1524	dREQ;
		1525
		1526	req->type = EIO_MLOCKALL;
		1527	req->int1 = flags;
		1528
		1529	REQ_SEND;
		1530	}
		1531
		1532	void
		1533	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1534	PPCODE:
		1535	{
		1536	int fd = s_fileno_croak (fh, 0);
		1537	dREQ;
		1538
		1539	req->type = EIO_CUSTOM;
		1540	req->sv1 = newSVsv (fh);
		1541	req->int1 = fd;
		1542
		1543	req->feed = fiemap;
		1544	#if HAVE_FIEMAP
		1545	/* keep our fingers crossed that the next two types are 64 bit */
		1546	req->offs = start;
		1547	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1548	req->int2 = flags;
		1549	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1550	#endif
		1551
		1552	REQ_SEND;
		1553	}
		1554
		1555	void
1228	aio_busy (double delay, SV *callback=&PL_sv_undef)	1556	aio_busy (double delay, SV *callback=&PL_sv_undef)
1229	PPCODE:	1557	PPCODE:
1230	{	1558	{
1231	dREQ;	1559	dREQ;
1232		1560
…		…
1236	REQ_SEND;	1564	REQ_SEND;
1237	}	1565	}
1238		1566
1239	void	1567	void
1240	aio_group (SV *callback=&PL_sv_undef)	1568	aio_group (SV *callback=&PL_sv_undef)
1241	PROTOTYPE: ;$
1242	PPCODE:	1569	PPCODE:
1243	{	1570	{
1244	dREQ;	1571	dREQ;
1245		1572
1246	req->type = EIO_GROUP;	1573	req->type = EIO_GROUP;
…		…
1263	REQ_SEND;	1590	REQ_SEND;
1264	}	1591	}
1265		1592
1266	int	1593	int
1267	aioreq_pri (int pri = 0)	1594	aioreq_pri (int pri = 0)
1268	PROTOTYPE: ;$
1269	CODE:	1595	CODE:
1270	RETVAL = next_pri;	1596	RETVAL = next_pri;
1271	if (items > 0)	1597	if (items > 0)
1272	{	1598	{
1273	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1599	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1285	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1611	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1286	next_pri = nice;	1612	next_pri = nice;
1287		1613
1288	void	1614	void
1289	flush ()	1615	flush ()
1290	PROTOTYPE:
1291	CODE:	1616	CODE:
1292	while (eio_nreqs ())	1617	while (eio_nreqs ())
1293	{	1618	{
1294	poll_wait ();	1619	poll_wait ();
1295	poll_cb ();	1620	poll_cb ();
1296	}	1621	}
1297		1622
1298	int	1623	int
1299	poll()	1624	poll ()
1300	PROTOTYPE:
1301	CODE:	1625	CODE:
1302	poll_wait ();	1626	poll_wait ();
1303	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1304	OUTPUT:	1628	OUTPUT:
1305	RETVAL	1629	RETVAL
1306		1630
1307	int	1631	int
1308	poll_fileno()	1632	poll_fileno ()
1309	PROTOTYPE:
1310	CODE:	1633	CODE:
1311	RETVAL = s_epipe_fd (&respipe);	1634	RETVAL = s_epipe_fd (&respipe);
1312	OUTPUT:	1635	OUTPUT:
1313	RETVAL	1636	RETVAL
1314		1637
1315	int	1638	int
1316	poll_cb(...)	1639	poll_cb (...)
1317	PROTOTYPE:	1640	PROTOTYPE:
1318	CODE:	1641	CODE:
1319	RETVAL = poll_cb ();	1642	RETVAL = poll_cb ();
1320	OUTPUT:	1643	OUTPUT:
1321	RETVAL	1644	RETVAL
1322		1645
1323	void	1646	void
1324	poll_wait()	1647	poll_wait ()
1325	PROTOTYPE:
1326	CODE:	1648	CODE:
1327	poll_wait ();	1649	poll_wait ();
1328		1650
1329	int	1651	int
1330	nreqs()	1652	nreqs ()
1331	PROTOTYPE:
1332	CODE:	1653	CODE:
1333	RETVAL = eio_nreqs ();	1654	RETVAL = eio_nreqs ();
1334	OUTPUT:	1655	OUTPUT:
1335	RETVAL	1656	RETVAL
1336		1657
1337	int	1658	int
1338	nready()	1659	nready ()
1339	PROTOTYPE:
1340	CODE:	1660	CODE:
1341	RETVAL = eio_nready ();	1661	RETVAL = eio_nready ();
1342	OUTPUT:	1662	OUTPUT:
1343	RETVAL	1663	RETVAL
1344		1664
1345	int	1665	int
1346	npending()	1666	npending ()
1347	PROTOTYPE:
1348	CODE:	1667	CODE:
1349	RETVAL = eio_npending ();	1668	RETVAL = eio_npending ();
1350	OUTPUT:	1669	OUTPUT:
1351	RETVAL	1670	RETVAL
1352		1671
1353	int	1672	int
1354	nthreads()	1673	nthreads ()
1355	PROTOTYPE:
1356	CODE:	1674	CODE:
1357	RETVAL = eio_nthreads ();	1675	RETVAL = eio_nthreads ();
1358	OUTPUT:	1676	OUTPUT:
1359	RETVAL	1677	RETVAL
1360		1678
1361	int	1679	int
1362	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1680	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1363	PROTOTYPE: $$$$
1364	CODE:	1681	CODE:
1365	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1366	RETVAL = posix_fadvise (fh, offset, length, advice);	1682	RETVAL = posix_fadvise (fh, offset, length, advice);
1367	#else
1368	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1369	#endif
1370	OUTPUT:	1683	OUTPUT:
1371	RETVAL	1684	RETVAL
1372		1685
1373	ssize_t	1686	IV
1374	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1687	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1375	PROTOTYPE: $$$$
1376	CODE:	1688	CODE:
1377	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1689	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1378	OUTPUT:	1690	OUTPUT:
1379	RETVAL	1691	RETVAL
1380		1692
1381	void	1693	void
1382	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1694	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1383	PROTOTYPE: $$$$$;$
1384	PPCODE:	1695	PPCODE:
1385	sv_unmagic (scalar, MMAP_MAGIC);	1696	sv_unmagic (scalar, MMAP_MAGIC);
1386	{	1697	{
1387	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1698	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1388	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1699	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1389	if (addr == (void *)-1)	1700	if (addr == (void *)-1)
1390	XSRETURN_NO;	1701	XSRETURN_NO;
1391		1702
		1703	sv_force_normal (scalar);
		1704
1392	/* we store the length in mg_obj, as namlen is I32 :/ */	1705	/* we store the length in mg_obj, as namlen is I32 :/ */
1393	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1706	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1394	->mg_obj = (SV *)length;	1707	->mg_obj = (SV *)length;
1395		1708
1396	SvUPGRADE (scalar, SVt_PV); /* nop... */	1709	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1710
1397	if (!(prot & PROT_WRITE))	1711	if (!(prot & PROT_WRITE))
1398	SvREADONLY_on (scalar);	1712	SvREADONLY_on (scalar);
		1713
		1714	if (SvLEN (scalar))
		1715	Safefree (SvPVX (scalar));
1399		1716
1400	SvPVX (scalar) = (char *)addr;	1717	SvPVX (scalar) = (char *)addr;
1401	SvCUR_set (scalar, length);	1718	SvCUR_set (scalar, length);
1402	SvLEN_set (scalar, 0);	1719	SvLEN_set (scalar, 0);
1403	SvPOK_only (scalar);	1720	SvPOK_only (scalar);
…		…
1405	XSRETURN_YES;	1722	XSRETURN_YES;
1406	}	1723	}
1407		1724
1408	void	1725	void
1409	munmap (SV *scalar)	1726	munmap (SV *scalar)
1410	PROTOTYPE: $
1411	CODE:	1727	CODE:
1412	sv_unmagic (scalar, MMAP_MAGIC);	1728	sv_unmagic (scalar, MMAP_MAGIC);
1413		1729
1414	int	1730	int
1415	mlockall (int flags)	1731	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1416	PROTOTYPE: $	1732	ALIAS:
		1733	mprotect = 1
1417	CODE:	1734	CODE:
		1735	{
		1736	STRLEN svlen;
		1737	void *addr = SvPVbyte (scalar, svlen);
		1738	size_t len = SvUV (length);
		1739
		1740	if (offset < 0)
		1741	offset += svlen;
		1742
		1743	if (offset < 0 || offset > svlen)
		1744	croak ("offset outside of scalar");
		1745
		1746	if (!SvOK (length) || len + offset > svlen)
		1747	len = svlen - offset;
		1748
		1749	addr = (void *)(((intptr_t)addr) + offset);
		1750	eio_page_align (&addr, &len);
		1751
		1752	switch (ix)
		1753	{
		1754	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1755	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1756	}
		1757	}
		1758	OUTPUT:
		1759	RETVAL
		1760
		1761	int
		1762	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1763	CODE:
		1764	{
		1765	STRLEN svlen;
		1766	void *addr = SvPVbyte (scalar, svlen);
		1767	size_t len = SvUV (length);
		1768
		1769	if (offset < 0)
		1770	offset += svlen;
		1771
		1772	if (offset < 0 || offset > svlen)
		1773	croak ("offset outside of scalar");
		1774
		1775	if (!SvOK (length) || len + offset > svlen)
		1776	len = svlen - offset;
		1777
		1778	addr = (void *)(((intptr_t)addr) + offset);
		1779	eio_page_align (&addr, &len);
1418	#if _POSIX_MEMLOCK	1780	#if _POSIX_MEMLOCK_RANGE
1419	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1781	RETVAL = munlock (addr, len);
1420	extern int mallopt (int, int);
1421	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1422	#endif
1423	mlockall (flags);
1424	#else	1782	#else
1425	RETVAL = -1;	1783	RETVAL = EIO_ENOSYS ();
1426	errno = ENOSYS;
1427	#endif	1784	#endif
		1785	}
1428	OUTPUT:	1786	OUTPUT:
1429	RETVAL	1787	RETVAL
1430		1788
1431	int	1789	int
1432	munlockall ()	1790	munlockall ()
1433	PROTOTYPE:
1434	CODE:	1791	CODE:
1435	#if _POSIX_MEMLOCK	1792	#if _POSIX_MEMLOCK
1436	munlockall ();	1793	munlockall ();
1437	#else	1794	#else
1438	RETVAL = -1;	1795	RETVAL = EIO_ENOSYS ();
1439	errno = ENOSYS;
1440	#endif	1796	#endif
1441	OUTPUT:	1797	OUTPUT:
		1798	RETVAL
		1799
		1800	int
		1801	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1802	CODE:
		1803	{
		1804	#if HAVE_LINUX_SPLICE
		1805	loff_t off_in_, off_out_;
		1806	RETVAL = splice (
		1807	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1808	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1809	length, flags
		1810	);
		1811	#else
		1812	RETVAL = EIO_ENOSYS ();
		1813	#endif
		1814	}
		1815	OUTPUT:
		1816	RETVAL
		1817
		1818	int
		1819	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1820	CODE:
		1821	#if HAVE_LINUX_SPLICE
		1822	RETVAL = tee (rfh, wfh, length, flags);
		1823	#else
		1824	RETVAL = EIO_ENOSYS ();
		1825	#endif
		1826	OUTPUT:
1442	RETVAL	1827	RETVAL
1443		1828
1444	void _on_next_submit (SV *cb)	1829	void _on_next_submit (SV *cb)
1445	CODE:	1830	CODE:
1446	SvREFCNT_dec (on_next_submit);	1831	SvREFCNT_dec (on_next_submit);
1447	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1832	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1448		1833
1449	PROTOTYPES: DISABLE	1834	PROTOTYPES: DISABLE
1450		1835
		1836	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1837
		1838	BOOT:
		1839	{
		1840	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1841	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1842	}
		1843
		1844	void
		1845	DESTROY (SV *self)
		1846	CODE:
		1847	{
		1848	aio_wd wd = SvAIO_WD (self);
		1849	#if HAVE_AT
		1850	{
		1851	SV *callback = &PL_sv_undef;
		1852	dREQ; /* clobbers next_pri :/ */
		1853	next_pri = req->pri; /* restore next_pri */
		1854	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1855	req->type = EIO_WD_CLOSE;
		1856	req->wd = wd;
		1857	REQ_SEND;
		1858	}
		1859	#else
		1860	eio_wd_close_sync (wd);
		1861	#endif
		1862	}
		1863
1451	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1864	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1452		1865
1453	void	1866	void
1454	cancel (aio_req_ornot req)	1867	cancel (aio_req_ornot req)
1455	CODE:	1868	CODE:

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