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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 UTC vs.
Revision 1.257 by root, Tue Jul 17 23:20:09 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8
9	#include "schmorp.h"
10		8
11	#include <stddef.h>	9	#include <stddef.h>
12	#include <stdlib.h>	10	#include <stdlib.h>
13	#include <errno.h>	11	#include <errno.h>
14	#include <sys/types.h>	12	#include <sys/types.h>
…		…
17	#include <fcntl.h>	15	#include <fcntl.h>
18	#include <sched.h>	16	#include <sched.h>
19		17
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	18	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	19	# include <sys/mman.h>
		20	#endif
		21
		22	/* the incompetent fool that created musl keeps __linux__, refuses
		23	* to implement any linux standard apis, and also has no way to test
		24	* for his broken iplementation. don't complain to me if this fails
		25	* for you.
		26	*/
		27	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		28	# include <linux/fs.h>
		29	# ifdef FS_IOC_FIEMAP
		30	# include <linux/types.h>
		31	# include <linux/fiemap.h>
		32	# define HAVE_FIEMAP 1
		33	# endif
22	#endif	34	#endif
23		35
24	/* perl namespace pollution */	36	/* perl namespace pollution */
25	#undef VERSION	37	#undef VERSION
26		38
…		…
77		89
78	#define EIO_STRUCT_STAT Stat_t	90	#define EIO_STRUCT_STAT Stat_t
79		91
80	#endif	92	#endif
81		93
82	/* use NV for 32 bit perls as it allows larger offsets */
83	#if IVSIZE >= 8
84	# define VAL64 IV
85	# define SvVAL64 SvIV
86	# define newSVval64 newSViv
87	#else
88	# define VAL64 NV
89	# define SvVAL64 SvNV
90	# define newSVval64 newSVnv
91	#endif
92
93	/*****************************************************************************/	94	/*****************************************************************************/
94		95
95	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
96	# define expect(expr,value) __builtin_expect ((expr),(value))	97	# define expect(expr,value) __builtin_expect ((expr),(value))
97	#else	98	#else
…		…
100		101
101	#define expect_false(expr) expect ((expr) != 0, 0)	102	#define expect_false(expr) expect ((expr) != 0, 0)
102	#define expect_true(expr) expect ((expr) != 0, 1)	103	#define expect_true(expr) expect ((expr) != 0, 1)
103		104
104	/*****************************************************************************/	105	/*****************************************************************************/
		106
		107	#include "libeio/config.h"
		108
		109	#include "schmorp.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
105		123
106	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
107	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
108	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
109		127
…		…
116	STRLEN stroffset; \	134	STRLEN stroffset; \
117	SV *self;	135	SV *self;
118		136
119	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
120		138
121	#include "libeio/config.h"
122	#include "libeio/eio.h"	139	#include "libeio/eio.h"
123		140
124	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
125	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
126	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
127	#define EIO_DESTROY(req) req_destroy (req)	144	#define EIO_DESTROY(req) req_destroy (req)
128		145
129	#include "libeio/eio.c"	146	#include "libeio/eio.c"
130		147
131	/* Linux/others */
132	#ifndef O_ASYNC
133	# define O_ASYNC 0
134	#endif
135	#ifndef O_DIRECT
136	# define O_DIRECT 0
137	#endif
138	#ifndef O_NOATIME
139	# define O_NOATIME 0
140	#endif
141
142	/* POSIX */
143	#ifndef O_CLOEXEC
144	# define O_CLOEXEC 0
145	#endif
146	#ifndef O_NOFOLLOW
147	# define O_NOFOLLOW 0
148	#endif
149	#ifndef O_NOCTTY
150	# define O_NOCTTY 0
151	#endif
152	#ifndef O_NONBLOCK
153	# define O_NONBLOCK 0
154	#endif
155	#ifndef O_EXEC
156	# define O_EXEC 0
157	#endif
158	#ifndef O_SEARCH
159	# define O_SEARCH 0
160	#endif
161	#ifndef O_DIRECTORY
162	# define O_DIRECTORY 0
163	#endif
164	#ifndef O_DSYNC
165	# define O_DSYNC 0
166	#endif
167	#ifndef O_RSYNC
168	# define O_RSYNC 0
169	#endif
170	#ifndef O_SYNC
171	# define O_SYNC 0
172	#endif
173	#ifndef O_TTY_INIT
174	# define O_TTY_INIT 0
175	#endif
176
177	#ifndef POSIX_FADV_NORMAL
178	# define POSIX_FADV_NORMAL 0
179	#endif
180	#ifndef POSIX_FADV_SEQUENTIAL
181	# define POSIX_FADV_SEQUENTIAL 0
182	#endif
183	#ifndef POSIX_FADV_RANDOM
184	# define POSIX_FADV_RANDOM 0
185	#endif
186	#ifndef POSIX_FADV_NOREUSE
187	# define POSIX_FADV_NOREUSE 0
188	#endif
189	#ifndef POSIX_FADV_WILLNEED
190	# define POSIX_FADV_WILLNEED 0
191	#endif
192	#ifndef POSIX_FADV_DONTNEED
193	# define POSIX_FADV_DONTNEED 0
194	#endif
195
196	#if !HAVE_POSIX_FADVISE	148	#if !HAVE_POSIX_FADVISE
197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	149	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198	#endif	150	#endif
199		151
200	#ifndef POSIX_MADV_NORMAL
201	# define POSIX_MADV_NORMAL 0
202	#endif
203	#ifndef POSIX_MADV_SEQUENTIAL
204	# define POSIX_MADV_SEQUENTIAL 0
205	#endif
206	#ifndef POSIX_MADV_RANDOM
207	# define POSIX_MADV_RANDOM 0
208	#endif
209	#ifndef POSIX_MADV_WILLNEED
210	# define POSIX_MADV_WILLNEED 0
211	#endif
212	#ifndef POSIX_MADV_DONTNEED
213	# define POSIX_MADV_DONTNEED 0
214	#endif
215
216	#if !HAVE_POSIX_MADVISE	152	#if !HAVE_POSIX_MADVISE
217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	153	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218	#endif
219
220	#ifndef PROT_NONE
221	# define PROT_NONE 0
222	#endif
223	#ifndef PROT_READ
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_WRITE
227	# define PROT_READ 0
228	#endif
229	#ifndef PROT_EXEC
230	# define PROT_EXEC 0
231	#endif
232
233	#ifndef ST_RDONLY
234	# define ST_RDONLY 0
235	#endif
236	#ifndef ST_NOSUID
237	# define ST_NOSUID 0
238	#endif
239	#ifndef ST_NODEV
240	# define ST_NODEV 0
241	#endif
242	#ifndef ST_NOEXEC
243	# define ST_NOEXEC 0
244	#endif
245	#ifndef ST_SYNCHRONOUS
246	# define ST_SYNCHRONOUS 0
247	#endif
248	#ifndef ST_MANDLOCK
249	# define ST_MANDLOCK 0
250	#endif
251	#ifndef ST_WRITE
252	# define ST_WRITE 0
253	#endif
254	#ifndef ST_APPEND
255	# define ST_APPEND 0
256	#endif
257	#ifndef ST_IMMUTABLE
258	# define ST_IMMUTABLE 0
259	#endif
260	#ifndef ST_NOATIME
261	# define ST_NOATIME 0
262	#endif
263	#ifndef ST_NODIRATIME
264	# define ST_NODIRATIME 0
265	#endif
266	#ifndef ST_RELATIME
267	# define ST_RELATIME 0
268	#endif
269
270	#ifndef S_IFIFO
271	# define S_IFIFO 0
272	#endif
273	#ifndef S_IFCHR
274	# define S_IFCHR 0
275	#endif
276	#ifndef S_IFBLK
277	# define S_IFBLK 0
278	#endif
279	#ifndef S_IFLNK
280	# define S_IFLNK 0
281	#endif
282	#ifndef S_IFREG
283	# define S_IFREG 0
284	#endif
285	#ifndef S_IFDIR
286	# define S_IFDIR 0
287	#endif
288	#ifndef S_IFWHT
289	# define S_IFWHT 0
290	#endif
291	#ifndef S_IFSOCK
292	# define S_IFSOCK 0
293	#endif	154	#endif
294		155
295	#ifndef MAP_ANONYMOUS	156	#ifndef MAP_ANONYMOUS
296	# ifdef MAP_ANON	157	# ifdef MAP_ANON
297	# define MAP_ANONYMOUS MAP_ANON	158	# define MAP_ANONYMOUS MAP_ANON
298	# else	159	# else
299	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300	# endif	161	# endif
301	#endif	162	#endif
302	#ifndef MAP_HUGETLB	163
303	# define MAP_HUGETLB 0	164	/* defines all sorts of constants to 0 unless they are already defined */
304	#endif	165	/* also provides const_iv_ and const_niv_ macros for them */
305	#ifndef MAP_LOCKED	166	#include "def0.h"
306	# define MAP_LOCKED 0
307	#endif
308	#ifndef MAP_NORESERVE
309	# define MAP_NORESERVE 0
310	#endif
311	#ifndef MAP_POPULATE
312	# define MAP_POPULATE 0
313	#endif
314	#ifndef MAP_NONBLOCK
315	# define MAP_NONBLOCK 0
316	#endif
317		167
318	#ifndef makedev	168	#ifndef makedev
319	# define makedev(maj,min) (((maj) << 8) | (min))	169	# define makedev(maj,min) (((maj) << 8) | (min))
320	#endif	170	#endif
321	#ifndef major	171	#ifndef major
…		…
323	#endif	173	#endif
324	#ifndef minor	174	#ifndef minor
325	# define minor(dev) ((dev) & 0xff)	175	# define minor(dev) ((dev) & 0xff)
326	#endif	176	#endif
327		177
328	#ifndef PAGESIZE	178	#if PAGESIZE <= 0
329	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
330	#endif	180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
		276
		277	/*****************************************************************************/
		278
		279	static void
		280	fiemap (eio_req *req)
		281	{
		282	req->result = -1;
		283
		284	#if HAVE_FIEMAP
		285	/* assume some c99 */
		286	struct fiemap *fiemap = 0;
		287	size_t end_offset;
		288	int count = req->int3;
		289
		290	req->flags |= EIO_FLAG_PTR1_FREE;
		291
		292	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		293	/* increase in 3.5kb steps */
		294	if (count < 0)
		295	count = 8;
		296
		297	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		298	errno = ENOMEM;
		299	if (!fiemap)
		300	return;
		301
		302	req->ptr1 = fiemap;
		303
		304	fiemap->fm_start = req->offs;
		305	fiemap->fm_length = req->size;
		306	fiemap->fm_flags = req->int2;
		307	fiemap->fm_extent_count = count;
		308
		309	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		310	return;
		311
		312	if (req->int3 >= 0 /* not autosizing */
		313	|| !fiemap->fm_mapped_extents /* no more extents */
		314	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		315	goto done;
		316
		317	/* else we have to loop -
		318	* it would be tempting (actually I tried that first) to just query the
		319	* number of extents needed, but linux often feels like not returning all
		320	* extents, without telling us it left any out. this complicates
		321	* this quite a bit.
		322	*/
		323
		324	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		325
		326	for (;;)
		327	{
		328	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		329	char scratch[3072];
		330	struct fiemap *incmap = (struct fiemap *)scratch;
		331
		332	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		333	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		334	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		335	incmap->fm_flags = fiemap->fm_flags;
		336	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		337
		338	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		339	return;
		340
		341	if (!incmap->fm_mapped_extents)
		342	goto done;
		343
		344	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		345	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		346	errno = ENOMEM;
		347	if (!fiemap)
		348	return;
		349
		350	req->ptr1 = fiemap;
		351
		352	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		353	{
		354	struct fiemap_extent *e = incmap->fm_extents + count;
		355
		356	if (e->fe_logical + e->fe_length >= end_offset)
		357	goto done;
		358
		359	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		360
		361	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		362	goto done;
		363
		364	}
		365	}
		366
		367	done:
		368	req->result = 0;
		369
		370	#else
		371	errno = ENOSYS;
		372	#endif
		373	}
		374
		375	/*****************************************************************************/
331		376
332	enum {	377	enum {
333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	378	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334	};	379	};
335		380
…		…
374	}	419	}
375		420
376	static SV *	421	static SV *
377	newSVaio_wd (aio_wd wd)	422	newSVaio_wd (aio_wd wd)
378	{	423	{
379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	424	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
380	}	425	}
381		426
382	static aio_req	427	static aio_req
383	SvAIO_REQ (SV *sv)	428	SvAIO_REQ (SV *sv)
384	{	429	{
…		…
403	|| SvTYPE (SvRV (sv)) != SVt_PVMG	448	|| SvTYPE (SvRV (sv)) != SVt_PVMG
404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	449	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	450	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406		451
407	return (aio_wd)(long)SvIVX (SvRV (sv));	452	return (aio_wd)(long)SvIVX (SvRV (sv));
		453	}
		454
		455	static SV *
		456	newmortalFH (int fd, int flags)
		457	{
		458	if (fd < 0)
		459	return &PL_sv_undef;
		460
		461	GV *gv = (GV *)sv_newmortal ();
		462	char sym[64];
		463	int symlen;
		464
		465	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		466	gv_init (gv, aio_stash, sym, symlen, 0);
		467
		468	symlen = snprintf (
		469	sym,
		470	sizeof (sym),
		471	"%s&=%d",
		472	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		473	fd
		474	);
		475
		476	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		477	? (SV *)gv : &PL_sv_undef;
408	}	478	}
409		479
410	static void	480	static void
411	aio_grp_feed (aio_req grp)	481	aio_grp_feed (aio_req grp)
412	{	482	{
…		…
540	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	610	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
541	}	611	}
542	break;	612	break;
543		613
544	case EIO_OPEN:	614	case EIO_OPEN:
545	{	615	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
546	/* convert fd to fh */
547	SV *fh = &PL_sv_undef;
548
549	if (req->result >= 0)
550	{
551	GV *gv = (GV *)sv_newmortal ();
552	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
553	char sym [64];
554	int symlen;
555
556	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
557	gv_init (gv, aio_stash, sym, symlen, 0);
558
559	symlen = snprintf (
560	sym,
561	sizeof (sym),
562	"%s&=%d",
563	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564	(int)req->result
565	);
566
567	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
568	fh = (SV *)gv;
569	}
570
571	PUSHs (fh);
572	}
573	break;	616	break;
574		617
575	case EIO_STATVFS:	618	case EIO_STATVFS:
576	case EIO_FSTATVFS:	619	case EIO_FSTATVFS:
577	{	620	{
…		…
580	#ifndef _WIN32	623	#ifndef _WIN32
581	if (req->result >= 0)	624	if (req->result >= 0)
582	{	625	{
583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	626	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584	HV *hv = newHV ();	627	HV *hv = newHV ();
		628	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		629	* chooses to make it a struct.
		630	*/
		631	unsigned long fsid = 0;
		632	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
585		633
586	rv = sv_2mortal (newRV_noinc ((SV *)hv));	634	rv = sv_2mortal (newRV_noinc ((SV *)hv));
587		635
588	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	636	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
589	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	637	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
591	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	639	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
592	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	640	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
593	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	641	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
594	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	642	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	643	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	644	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	645	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	646	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599	}	647	}
600	#endif	648	#endif
601		649
…		…
652	SvSETMAGIC (req->sv2);	700	SvSETMAGIC (req->sv2);
653	PUSHs (sv_result);	701	PUSHs (sv_result);
654	}	702	}
655	break;	703	break;
656		704
		705	case EIO_SLURP:
		706	{
		707	if (req->result >= 0)
		708	{
		709	/* if length was originally not known, we steal the malloc'ed memory */
		710	if (req->flags & EIO_FLAG_PTR2_FREE)
		711	{
		712	req->flags &= ~EIO_FLAG_PTR2_FREE;
		713	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		714	}
		715	else
		716	{
		717	SvCUR_set (req->sv2, req->result);
		718	*SvEND (req->sv2) = 0;
		719	SvPOK_only (req->sv2);
		720	}
		721
		722	SvSETMAGIC (req->sv2);
		723	}
		724
		725	PUSHs (sv_result);
		726	}
		727	break;
		728
		729	case EIO_CUSTOM:
		730	if (req->feed == fiemap)
		731	{
		732	#if HAVE_FIEMAP
		733	if (!req->result)
		734	{
		735	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		736
		737	if (fiemap->fm_extent_count)
		738	{
		739	AV *av = newAV ();
		740	int i;
		741
		742	while (fiemap->fm_mapped_extents)
		743	{
		744	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		745	AV *ext_av = newAV ();
		746
		747	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		748	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		749	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		750	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		751
		752	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		753	}
		754
		755	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		756	}
		757	else
		758	{
		759	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		760	PUSHs (sv_result);
		761	}
		762	}
		763	#endif
		764	}
		765	else
		766	PUSHs (sv_result);
		767	break;
		768
657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	769	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658	if (req->result > 0)	770	if (req->result > 0)
659	SvIV_set (sv_result, 0);	771	SvIV_set (sv_result, 0);
660	/* FALLTHROUGH */	772	/* FALLTHROUGH */
661		773
…		…
726	{	838	{
727	while (eio_nreqs ())	839	while (eio_nreqs ())
728	{	840	{
729	int size;	841	int size;
730		842
731	X_LOCK (reslock);	843	X_LOCK (EIO_POOL->reslock);
732	size = res_queue.size;	844	size = EIO_POOL->res_queue.size;
733	X_UNLOCK (reslock);	845	X_UNLOCK (EIO_POOL->reslock);
734		846
735	if (size)	847	if (size)
736	return;	848	return;
737		849
738	etp_maybe_start_thread ();	850	etp_maybe_start_thread (EIO_POOL);
739		851
740	s_epipe_wait (&respipe);	852	s_epipe_wait (&respipe);
741	}	853	}
742	}	854	}
743		855
…		…
764	create_respipe ();	876	create_respipe ();
765		877
766	if (eio_init (want_poll, done_poll) < 0)	878	if (eio_init (want_poll, done_poll) < 0)
767	croak ("IO::AIO: unable to initialise eio library");	879	croak ("IO::AIO: unable to initialise eio library");
768	}	880	}
769
770	/*****************************************************************************/
771
772	#if !_POSIX_MAPPED_FILES
773	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
774	# define munmap(addr,length) (errno = ENOSYS, -1)
775	#endif
776
777	#if !_POSIX_MEMORY_PROTECTION
778	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
779	# define PROT_NONE 0
780	# define PROT_WRITE 0
781	# define MAP_PRIVATE 0
782	# define MAP_SHARED 0
783	# define MAP_FIXED 0
784	#endif
785
786	#define MMAP_MAGIC PERL_MAGIC_ext
787
788	static int ecb_cold
789	mmap_free (pTHX_ SV *sv, MAGIC *mg)
790	{
791	int old_errno = errno;
792	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
793	errno = old_errno;
794
795	mg->mg_obj = 0; /* just in case */
796
797	SvREADONLY_off (sv);
798
799	if (SvPVX (sv) != mg->mg_ptr)
800	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
801
802	SvCUR_set (sv, 0);
803	SvPVX (sv) = 0;
804	SvOK_off (sv);
805
806	return 0;
807	}
808
809	static MGVTBL mmap_vtbl = {
810	0, 0, 0, 0, mmap_free
811	};
812		881
813	/*****************************************************************************/	882	/*****************************************************************************/
814		883
815	static SV *	884	static SV *
816	get_cb (SV *cb_sv)	885	get_cb (SV *cb_sv)
…		…
912	req_set_path1 (req, fh_or_path);	981	req_set_path1 (req, fh_or_path);
913	break;	982	break;
914	}	983	}
915	}	984	}
916		985
		986	/*****************************************************************************/
		987
		988	static void
		989	ts_set (struct timespec *ts, NV value)
		990	{
		991	ts->tv_sec = value;
		992	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		993	}
		994
		995	static NV
		996	ts_get (const struct timespec *ts)
		997	{
		998	return ts->tv_sec + ts->tv_nsec * 1e-9;
		999	}
		1000
		1001	/*****************************************************************************/
		1002
917	XS(boot_IO__AIO) ecb_cold;	1003	XS(boot_IO__AIO) ecb_cold;
918		1004
919	MODULE = IO::AIO PACKAGE = IO::AIO	1005	MODULE = IO::AIO PACKAGE = IO::AIO
920		1006
921	PROTOTYPES: ENABLE	1007	PROTOTYPES: ENABLE
…		…
927	IV iv;	1013	IV iv;
928	} *civ, const_iv[] = {	1014	} *civ, const_iv[] = {
929	# define const_niv(name, value) { # name, (IV) value },	1015	# define const_niv(name, value) { # name, (IV) value },
930	# define const_iv(name) { # name, (IV) name },	1016	# define const_iv(name) { # name, (IV) name },
931	# define const_eio(name) { # name, (IV) EIO_ ## name },	1017	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1018
		1019	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1020	/* the first block can be undef if missing */
		1021	const_iv (ENOSYS)
932	const_iv (EXDEV)	1022	const_iv (EXDEV)
933	const_iv (ENOSYS)	1023	const_iv (EBADR)
		1024
		1025	/* for lseek */
		1026	const_iv (SEEK_DATA)
		1027	const_iv (SEEK_HOLE)
		1028
		1029	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1030	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1031	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1032	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1033	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1034	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1035
		1036	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1037	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1038	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1039	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1040	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1041
		1042	/* the second block will be 0 when missing */
934	const_iv (O_RDONLY)	1043	const_iv (O_RDONLY)
935	const_iv (O_WRONLY)	1044	const_iv (O_WRONLY)
936	const_iv (O_RDWR)	1045	const_iv (O_RDWR)
937	const_iv (O_CREAT)	1046	const_iv (O_CREAT)
938	const_iv (O_TRUNC)	1047	const_iv (O_TRUNC)
…		…
951	const_iv (O_SEARCH)	1060	const_iv (O_SEARCH)
952	const_iv (O_DIRECTORY)	1061	const_iv (O_DIRECTORY)
953	const_iv (O_DSYNC)	1062	const_iv (O_DSYNC)
954	const_iv (O_RSYNC)	1063	const_iv (O_RSYNC)
955	const_iv (O_SYNC)	1064	const_iv (O_SYNC)
		1065	const_iv (O_PATH)
		1066	const_iv (O_TMPFILE)
956	const_iv (O_TTY_INIT)	1067	const_iv (O_TTY_INIT)
957		1068
958	const_iv (S_IFIFO)	1069	const_iv (S_IFIFO)
959	const_iv (S_IFCHR)	1070	const_iv (S_IFCHR)
960	const_iv (S_IFBLK)	1071	const_iv (S_IFBLK)
…		…
962	const_iv (S_IFREG)	1073	const_iv (S_IFREG)
963	const_iv (S_IFDIR)	1074	const_iv (S_IFDIR)
964	const_iv (S_IFWHT)	1075	const_iv (S_IFWHT)
965	const_iv (S_IFSOCK)	1076	const_iv (S_IFSOCK)
966	const_iv (S_IFMT)	1077	const_iv (S_IFMT)
967
968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
973	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
974
975	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
976	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
977	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
978	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
979	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
980		1078
981	const_iv (ST_RDONLY)	1079	const_iv (ST_RDONLY)
982	const_iv (ST_NOSUID)	1080	const_iv (ST_NOSUID)
983	const_iv (ST_NODEV)	1081	const_iv (ST_NODEV)
984	const_iv (ST_NOEXEC)	1082	const_iv (ST_NOEXEC)
…		…
994	const_iv (PROT_NONE)	1092	const_iv (PROT_NONE)
995	const_iv (PROT_EXEC)	1093	const_iv (PROT_EXEC)
996	const_iv (PROT_READ)	1094	const_iv (PROT_READ)
997	const_iv (PROT_WRITE)	1095	const_iv (PROT_WRITE)
998		1096
999	/*const_iv (MAP_FIXED)*/
1000	const_iv (MAP_PRIVATE)	1097	const_iv (MAP_PRIVATE)
1001	const_iv (MAP_SHARED)	1098	const_iv (MAP_SHARED)
		1099	const_iv (MAP_FIXED)
1002	const_iv (MAP_ANONYMOUS)	1100	const_iv (MAP_ANONYMOUS)
1003		1101
1004	/* linuxish */	1102	/* linuxish */
1005	const_iv (MAP_HUGETLB)
1006	const_iv (MAP_LOCKED)	1103	const_iv (MAP_LOCKED)
1007	const_iv (MAP_NORESERVE)	1104	const_iv (MAP_NORESERVE)
1008	const_iv (MAP_POPULATE)	1105	const_iv (MAP_POPULATE)
1009	const_iv (MAP_NONBLOCK)	1106	const_iv (MAP_NONBLOCK)
		1107	const_iv (MAP_GROWSDOWN)
		1108	const_iv (MAP_32BIT)
		1109	const_iv (MAP_HUGETLB)
		1110	const_iv (MAP_STACK)
1010		1111
		1112	const_iv (MREMAP_MAYMOVE)
		1113	const_iv (MREMAP_FIXED)
		1114
		1115	const_iv (F_DUPFD_CLOEXEC)
		1116
		1117	const_iv (F_OFD_GETLK)
		1118	const_iv (F_OFD_SETLK)
		1119	const_iv (F_OFD_GETLKW)
		1120
		1121	const_iv (FIFREEZE)
		1122	const_iv (FITHAW)
		1123	const_iv (FITRIM)
		1124	const_iv (FICLONE)
		1125	const_iv (FICLONERANGE)
		1126	const_iv (FIDEDUPERANGE)
		1127
		1128	const_iv (FS_IOC_GETFLAGS)
		1129	const_iv (FS_IOC_SETFLAGS)
		1130	const_iv (FS_IOC_GETVERSION)
		1131	const_iv (FS_IOC_SETVERSION)
		1132	const_iv (FS_IOC_FIEMAP)
		1133	const_iv (FS_IOC_FSGETXATTR)
		1134	const_iv (FS_IOC_FSSETXATTR)
		1135	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1136	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1137	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1138
		1139	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1140
		1141	const_iv (FS_SECRM_FL)
		1142	const_iv (FS_UNRM_FL)
		1143	const_iv (FS_COMPR_FL)
		1144	const_iv (FS_SYNC_FL)
		1145	const_iv (FS_IMMUTABLE_FL)
		1146	const_iv (FS_APPEND_FL)
		1147	const_iv (FS_NODUMP_FL)
		1148	const_iv (FS_NOATIME_FL)
		1149	const_iv (FS_DIRTY_FL)
		1150	const_iv (FS_COMPRBLK_FL)
		1151	const_iv (FS_NOCOMP_FL)
		1152	const_iv (FS_ENCRYPT_FL)
		1153	const_iv (FS_BTREE_FL)
		1154	const_iv (FS_INDEX_FL)
		1155	const_iv (FS_JOURNAL_DATA_FL)
		1156	const_iv (FS_NOTAIL_FL)
		1157	const_iv (FS_DIRSYNC_FL)
		1158	const_iv (FS_TOPDIR_FL)
		1159	const_iv (FS_FL_USER_MODIFIABLE)
		1160
		1161	const_iv (FS_XFLAG_REALTIME)
		1162	const_iv (FS_XFLAG_PREALLOC)
		1163	const_iv (FS_XFLAG_IMMUTABLE)
		1164	const_iv (FS_XFLAG_APPEND)
		1165	const_iv (FS_XFLAG_SYNC)
		1166	const_iv (FS_XFLAG_NOATIME)
		1167	const_iv (FS_XFLAG_NODUMP)
		1168	const_iv (FS_XFLAG_RTINHERIT)
		1169	const_iv (FS_XFLAG_PROJINHERIT)
		1170	const_iv (FS_XFLAG_NOSYMLINKS)
		1171	const_iv (FS_XFLAG_EXTSIZE)
		1172	const_iv (FS_XFLAG_EXTSZINHERIT)
		1173	const_iv (FS_XFLAG_NODEFRAG)
		1174	const_iv (FS_XFLAG_FILESTREAM)
		1175	const_iv (FS_XFLAG_DAX)
		1176	const_iv (FS_XFLAG_HASATTR)
		1177
		1178	const_iv (FIEMAP_FLAG_SYNC)
		1179	const_iv (FIEMAP_FLAG_XATTR)
		1180	const_iv (FIEMAP_FLAGS_COMPAT)
		1181	const_iv (FIEMAP_EXTENT_LAST)
		1182	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1183	const_iv (FIEMAP_EXTENT_DELALLOC)
		1184	const_iv (FIEMAP_EXTENT_ENCODED)
		1185	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1186	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1187	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1188	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1189	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1190	const_iv (FIEMAP_EXTENT_MERGED)
		1191	const_iv (FIEMAP_EXTENT_SHARED)
		1192
		1193	const_iv (SPLICE_F_MOVE)
		1194	const_iv (SPLICE_F_NONBLOCK)
		1195	const_iv (SPLICE_F_MORE)
		1196	const_iv (SPLICE_F_GIFT)
		1197
		1198	const_iv (EFD_CLOEXEC)
		1199	const_iv (EFD_NONBLOCK)
		1200	const_iv (EFD_SEMAPHORE)
		1201
		1202	const_iv (CLOCK_REALTIME)
		1203	const_iv (CLOCK_MONOTONIC)
		1204	const_iv (CLOCK_BOOTTIME)
		1205	const_iv (CLOCK_REALTIME_ALARM)
		1206	const_iv (CLOCK_BOOTTIME_ALARM)
		1207
		1208	const_iv (TFD_NONBLOCK)
		1209	const_iv (TFD_CLOEXEC)
		1210
		1211	const_iv (TFD_TIMER_ABSTIME)
		1212	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1213
		1214	/* these are libeio constants, and are independent of gendef0 */
1011	const_eio (SEEK_SET)	1215	const_eio (SEEK_SET)
1012	const_eio (SEEK_CUR)	1216	const_eio (SEEK_CUR)
1013	const_eio (SEEK_END)	1217	const_eio (SEEK_END)
1014		1218
1015	const_eio (MCL_FUTURE)	1219	const_eio (MCL_FUTURE)
…		…
1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1228	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1025	const_eio (SYNC_FILE_RANGE_WRITE)	1229	const_eio (SYNC_FILE_RANGE_WRITE)
1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1230	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1027		1231
1028	const_eio (FALLOC_FL_KEEP_SIZE)	1232	const_eio (FALLOC_FL_KEEP_SIZE)
		1233	const_eio (FALLOC_FL_PUNCH_HOLE)
		1234	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1235	const_eio (FALLOC_FL_ZERO_RANGE)
		1236	const_eio (FALLOC_FL_INSERT_RANGE)
		1237	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1238
		1239	const_eio (RENAME_NOREPLACE)
		1240	const_eio (RENAME_EXCHANGE)
		1241	const_eio (RENAME_WHITEOUT)
1029		1242
1030	const_eio (READDIR_DENTS)	1243	const_eio (READDIR_DENTS)
1031	const_eio (READDIR_DIRS_FIRST)	1244	const_eio (READDIR_DIRS_FIRST)
1032	const_eio (READDIR_STAT_ORDER)	1245	const_eio (READDIR_STAT_ORDER)
1033	const_eio (READDIR_FOUND_UNKNOWN)	1246	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1101	PROTOTYPE: $	1314	PROTOTYPE: $
1102	CODE:	1315	CODE:
1103	max_outstanding = maxreqs;	1316	max_outstanding = maxreqs;
1104		1317
1105	void	1318	void
1106	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1319	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1107	PPCODE:	1320	PPCODE:
1108	{	1321	{
1109	dREQ;	1322	dREQ;
1110		1323
1111	req->type = EIO_WD_OPEN;	1324	req->type = EIO_WD_OPEN;
…		…
1113		1326
1114	REQ_SEND;	1327	REQ_SEND;
1115	}	1328	}
1116		1329
1117	void	1330	void
1118	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1331	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1119	PPCODE:	1332	PPCODE:
1120	{	1333	{
1121	dREQ;	1334	dREQ;
1122		1335
1123	req->type = EIO_OPEN;	1336	req->type = EIO_OPEN;
…		…
1127		1340
1128	REQ_SEND;	1341	REQ_SEND;
1129	}	1342	}
1130		1343
1131	void	1344	void
1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1345	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1133	ALIAS:	1346	ALIAS:
1134	aio_fsync = EIO_FSYNC	1347	aio_fsync = EIO_FSYNC
1135	aio_fdatasync = EIO_FDATASYNC	1348	aio_fdatasync = EIO_FDATASYNC
1136	aio_syncfs = EIO_SYNCFS	1349	aio_syncfs = EIO_SYNCFS
1137	PPCODE:	1350	PPCODE:
1138	{	1351	{
1139	int fd = s_fileno_croak (fh, 0);	1352	int fd = s_fileno_croak (fh, 0);
1140	dREQ;	1353	dREQ;
1141		1354
1142	req->type = ix;	1355	req->type = ix;
1143	req->sv1 = newSVsv (fh);	1356	req->sv1 = newSVsv (fh);
1144	req->int1 = fd;	1357	req->int1 = fd;
1145		1358
1146	REQ_SEND;	1359	REQ_SEND;
1147	}	1360	}
1148		1361
1149	void	1362	void
1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1363	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1151	PPCODE:	1364	PPCODE:
1152	{	1365	{
1153	int fd = s_fileno_croak (fh, 0);	1366	int fd = s_fileno_croak (fh, 0);
1154	dREQ;	1367	dREQ;
1155		1368
1156	req->type = EIO_SYNC_FILE_RANGE;	1369	req->type = EIO_SYNC_FILE_RANGE;
1157	req->sv1 = newSVsv (fh);	1370	req->sv1 = newSVsv (fh);
1158	req->int1 = fd;	1371	req->int1 = fd;
…		…
1162		1375
1163	REQ_SEND;	1376	REQ_SEND;
1164	}	1377	}
1165		1378
1166	void	1379	void
1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1380	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1168	PPCODE:	1381	PPCODE:
1169	{	1382	{
1170	int fd = s_fileno_croak (fh, 0);	1383	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1384	dREQ;
1172		1385
1173	req->type = EIO_FALLOCATE;	1386	req->type = EIO_FALLOCATE;
1174	req->sv1 = newSVsv (fh);	1387	req->sv1 = newSVsv (fh);
1175	req->int1 = fd;	1388	req->int1 = fd;
…		…
1179		1392
1180	REQ_SEND;	1393	REQ_SEND;
1181	}	1394	}
1182		1395
1183	void	1396	void
1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1397	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1185	PPCODE:	1398	PPCODE:
1186	{	1399	{
1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1400	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1188	int fd = s_fileno_croak (fh, 0);	1401	int fd = s_fileno_croak (fh, 0);
1189	dREQ;	1402	dREQ;
1190		1403
1191	if (expect_false (close_fd < 0))	1404	if (expect_false (close_fd < 0))
1192	{	1405	{
1193	int pipefd [2];	1406	int pipefd [2];
…		…
1213		1426
1214	REQ_SEND;	1427	REQ_SEND;
1215	}	1428	}
1216		1429
1217	void	1430	void
1218	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1431	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1219	PPCODE:	1432	PPCODE:
1220	{	1433	{
1221	STRLEN svlen;
1222	int fd = s_fileno_croak (fh, 0);	1434	int fd = s_fileno_croak (fh, 0);
1223	dREQ;	1435	dREQ;
1224		1436
1225	req->type = EIO_SEEK;	1437	req->type = EIO_SEEK;
1226	req->sv1 = newSVsv (fh);	1438	req->sv1 = newSVsv (fh);
…		…
1230		1442
1231	REQ_SEND;	1443	REQ_SEND;
1232	}	1444	}
1233		1445
1234	void	1446	void
1235	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1447	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1236	ALIAS:	1448	ALIAS:
1237	aio_read = EIO_READ	1449	aio_read = EIO_READ
1238	aio_write = EIO_WRITE	1450	aio_write = EIO_WRITE
1239	PPCODE:	1451	PPCODE:
1240	{	1452	{
…		…
1256	len = svlen - dataoffset;	1468	len = svlen - dataoffset;
1257	}	1469	}
1258	else	1470	else
1259	{	1471	{
1260	/* read: check type and grow scalar as necessary */	1472	/* read: check type and grow scalar as necessary */
1261	SvUPGRADE (data, SVt_PV);	1473	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1262	svptr = SvGROW (data, len + dataoffset + 1);	1474	svptr = sv_grow (data, len + dataoffset + 1);
		1475	else if (SvCUR (data) < len + dataoffset)
		1476	croak ("length + dataoffset outside of scalar, and cannot grow");
1263	}	1477	}
1264		1478
1265	{	1479	{
1266	dREQ;	1480	dREQ;
1267		1481
…		…
1283	REQ_SEND;	1497	REQ_SEND;
1284	}	1498	}
1285	}	1499	}
1286		1500
1287	void	1501	void
		1502	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1503	ALIAS:
		1504	aio_ioctl = EIO_IOCTL
		1505	aio_fcntl = EIO_FCNTL
		1506	PPCODE:
		1507	{
		1508	int fd = s_fileno_croak (fh, 0);
		1509	char *svptr;
		1510
		1511	if (SvPOK (arg) || !SvNIOK (arg))
		1512	{
		1513	STRLEN svlen;
		1514	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1515	#ifdef IOCPARM_LEN
		1516	STRLEN need = IOCPARM_LEN (request);
		1517	#else
		1518	STRLEN need = 256;
		1519	#endif
		1520
		1521	if (svlen < need)
		1522	svptr = SvGROW (arg, need);
		1523	}
		1524	else
		1525	svptr = (char *)SvIV (arg);
		1526
		1527	{
		1528	dREQ;
		1529
		1530	req->type = ix;
		1531	req->sv1 = newSVsv (fh);
		1532	req->int1 = fd;
		1533	req->int2 = (long)request;
		1534	req->sv2 = SvREFCNT_inc (arg);
		1535	req->ptr2 = svptr;
		1536
		1537	REQ_SEND;
		1538	}
		1539	}
		1540
		1541	void
1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1542	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1289	ALIAS:	1543	ALIAS:
1290	aio_readlink = EIO_READLINK	1544	aio_readlink = EIO_READLINK
1291	aio_realpath = EIO_REALPATH	1545	aio_realpath = EIO_REALPATH
1292	PPCODE:	1546	PPCODE:
1293	{	1547	{
…		…
1298		1552
1299	REQ_SEND;	1553	REQ_SEND;
1300	}	1554	}
1301		1555
1302	void	1556	void
1303	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1557	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1304	PPCODE:	1558	PPCODE:
1305	{	1559	{
1306	int ifd = s_fileno_croak (in_fh , 0);	1560	int ifd = s_fileno_croak (in_fh , 0);
1307	int ofd = s_fileno_croak (out_fh, 1);	1561	int ofd = s_fileno_croak (out_fh, 1);
1308	dREQ;	1562	dREQ;
1309		1563
1310	req->type = EIO_SENDFILE;	1564	req->type = EIO_SENDFILE;
1311	req->sv1 = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
1312	req->int1 = ofd;	1566	req->int1 = ofd;
…		…
1317		1571
1318	REQ_SEND;	1572	REQ_SEND;
1319	}	1573	}
1320		1574
1321	void	1575	void
1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1323	PPCODE:	1577	PPCODE:
1324	{	1578	{
1325	int fd = s_fileno_croak (fh, 0);	1579	int fd = s_fileno_croak (fh, 0);
1326	dREQ;	1580	dREQ;
1327		1581
1328	req->type = EIO_READAHEAD;	1582	req->type = EIO_READAHEAD;
1329	req->sv1 = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
1330	req->int1 = fd;	1584	req->int1 = fd;
…		…
1333		1587
1334	REQ_SEND;	1588	REQ_SEND;
1335	}	1589	}
1336		1590
1337	void	1591	void
1338	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1339	ALIAS:	1593	ALIAS:
1340	aio_stat = EIO_STAT	1594	aio_stat = EIO_STAT
1341	aio_lstat = EIO_LSTAT	1595	aio_lstat = EIO_LSTAT
1342	aio_statvfs = EIO_STATVFS	1596	aio_statvfs = EIO_STATVFS
1343	PPCODE:	1597	PPCODE:
…		…
1352	UV	1606	UV
1353	major (UV dev)	1607	major (UV dev)
1354	ALIAS:	1608	ALIAS:
1355	minor = 1	1609	minor = 1
1356	CODE:	1610	CODE:
1357	RETVAL = ix ? major (dev) : minor (dev);	1611	RETVAL = ix ? minor (dev) : major (dev);
1358	OUTPUT:	1612	OUTPUT:
1359	RETVAL	1613	RETVAL
1360		1614
1361	UV	1615	UV
1362	makedev (UV maj, UV min)	1616	makedev (UV maj, UV min)
…		…
1364	RETVAL = makedev (maj, min);	1618	RETVAL = makedev (maj, min);
1365	OUTPUT:	1619	OUTPUT:
1366	RETVAL	1620	RETVAL
1367		1621
1368	void	1622	void
1369	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1623	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1370	PPCODE:	1624	PPCODE:
1371	{	1625	{
1372	dREQ;	1626	dREQ;
1373		1627
1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1628	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1377		1631
1378	REQ_SEND;	1632	REQ_SEND;
1379	}	1633	}
1380		1634
1381	void	1635	void
1382	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1636	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1383	PPCODE:	1637	PPCODE:
1384	{	1638	{
1385	dREQ;	1639	dREQ;
1386		1640
1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1389		1643
1390	REQ_SEND;	1644	REQ_SEND;
1391	}	1645	}
1392		1646
1393	void	1647	void
1394	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1648	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1395	PPCODE:	1649	PPCODE:
1396	{	1650	{
1397	dREQ;	1651	dREQ;
1398		1652
1399	req->int2 = mode;	1653	req->int2 = mode;
…		…
1401		1655
1402	REQ_SEND;	1656	REQ_SEND;
1403	}	1657	}
1404		1658
1405	void	1659	void
1406	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1660	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1407	PPCODE:	1661	PPCODE:
1408	{	1662	{
1409	dREQ;	1663	dREQ;
1410		1664
1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1665	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1414		1668
1415	REQ_SEND;	1669	REQ_SEND;
1416	}	1670	}
1417		1671
1418	void	1672	void
1419	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1673	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1420	PPCODE:	1674	PPCODE:
1421	{	1675	{
1422	dREQ;	1676	dREQ;
1423		1677
1424	req->type = EIO_READDIR;	1678	req->type = EIO_READDIR;
…		…
1431		1685
1432	REQ_SEND;	1686	REQ_SEND;
1433	}	1687	}
1434		1688
1435	void	1689	void
1436	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1690	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1437	PPCODE:	1691	PPCODE:
1438	{	1692	{
1439	dREQ;	1693	dREQ;
1440		1694
1441	req->type = EIO_MKDIR;	1695	req->type = EIO_MKDIR;
…		…
1444		1698
1445	REQ_SEND;	1699	REQ_SEND;
1446	}	1700	}
1447		1701
1448	void	1702	void
1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1703	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1450	ALIAS:	1704	ALIAS:
1451	aio_unlink = EIO_UNLINK	1705	aio_unlink = EIO_UNLINK
1452	aio_rmdir = EIO_RMDIR	1706	aio_rmdir = EIO_RMDIR
1453	aio_readdir = EIO_READDIR	1707	aio_readdir = EIO_READDIR
1454	PPCODE:	1708	PPCODE:
…		…
1460		1714
1461	REQ_SEND;	1715	REQ_SEND;
1462	}	1716	}
1463		1717
1464	void	1718	void
1465	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1719	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1466	ALIAS:	1720	ALIAS:
1467	aio_link = EIO_LINK	1721	aio_link = EIO_LINK
1468	aio_symlink = EIO_SYMLINK	1722	aio_symlink = EIO_SYMLINK
1469	aio_rename = EIO_RENAME	1723	aio_rename = EIO_RENAME
1470	PPCODE:	1724	PPCODE:
…		…
1479		1733
1480	REQ_SEND;	1734	REQ_SEND;
1481	}	1735	}
1482		1736
1483	void	1737	void
		1738	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1739	PPCODE:
		1740	{
		1741	eio_wd wd2 = 0;
		1742	dREQ;
		1743
		1744	req->type = EIO_RENAME;
		1745	req_set_path1 (req, oldpath);
		1746	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1747	req->int2 = flags;
		1748	req->int3 = (long)wd2;
		1749
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
1484	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1754	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1485	PPCODE:	1755	PPCODE:
1486	{	1756	{
1487	dREQ;	1757	dREQ;
1488		1758
1489	req->type = EIO_MKNOD;	1759	req->type = EIO_MKNOD;
…		…
1493		1763
1494	REQ_SEND;	1764	REQ_SEND;
1495	}	1765	}
1496		1766
1497	void	1767	void
1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1768	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1499	ALIAS:	1769	ALIAS:
1500	aio_mtouch = EIO_MTOUCH	1770	aio_mtouch = EIO_MTOUCH
1501	aio_msync = EIO_MSYNC	1771	aio_msync = EIO_MSYNC
1502	PPCODE:	1772	PPCODE:
1503	{	1773	{
1504	STRLEN svlen;	1774	STRLEN svlen;
1505	char *svptr = SvPVbyte (data, svlen);	1775	char *svptr = SvPVbyte (data, svlen);
1506	UV len = SvUV (length);	1776	UV len = SvUV (length);
		1777
		1778	if (flags < 0)
		1779	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1507		1780
1508	if (offset < 0)	1781	if (offset < 0)
1509	offset += svlen;	1782	offset += svlen;
1510		1783
1511	if (offset < 0 || offset > svlen)	1784	if (offset < 0 || offset > svlen)
…		…
1526	REQ_SEND;	1799	REQ_SEND;
1527	}	1800	}
1528	}	1801	}
1529		1802
1530	void	1803	void
1531	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1804	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1532	PPCODE:	1805	PPCODE:
1533	{	1806	{
1534	STRLEN svlen;	1807	STRLEN svlen;
1535	char *svptr = SvPVbyte (data, svlen);	1808	char *svptr = SvPVbyte (data, svlen);
1536	UV len = SvUV (length);	1809	UV len = SvUV (length);
…		…
1555	REQ_SEND;	1828	REQ_SEND;
1556	}	1829	}
1557	}	1830	}
1558		1831
1559	void	1832	void
1560	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1833	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1561	PPCODE:	1834	PPCODE:
1562	{	1835	{
1563	dREQ;	1836	dREQ;
1564		1837
1565	req->type = EIO_MLOCKALL;	1838	req->type = EIO_MLOCKALL;
…		…
1567		1840
1568	REQ_SEND;	1841	REQ_SEND;
1569	}	1842	}
1570		1843
1571	void	1844	void
		1845	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1846	PPCODE:
		1847	{
		1848	int fd = s_fileno_croak (fh, 0);
		1849	dREQ;
		1850
		1851	req->type = EIO_CUSTOM;
		1852	req->sv1 = newSVsv (fh);
		1853	req->int1 = fd;
		1854
		1855	req->feed = fiemap;
		1856	#if HAVE_FIEMAP
		1857	/* keep our fingers crossed that the next two types are 64 bit */
		1858	req->offs = start;
		1859	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1860	req->int2 = flags;
		1861	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1862	#endif
		1863
		1864	REQ_SEND;
		1865	}
		1866
		1867	void
		1868	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1869	PPCODE:
		1870	{
		1871	char *svptr = 0;
		1872
		1873	sv_clear_foreign (data);
		1874
		1875	if (length) /* known length, directly read into scalar */
		1876	{
		1877	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1878	svptr = sv_grow (data, length + 1);
		1879	else if (SvCUR (data) < length)
		1880	croak ("length outside of scalar, and cannot grow");
		1881	else
		1882	svptr = SvPVbyte_nolen (data);
		1883	}
		1884
		1885	{
		1886	dREQ;
		1887
		1888	req->type = EIO_SLURP;
		1889	req_set_path1 (req, pathname);
		1890	req->offs = offset;
		1891	req->size = length;
		1892	req->sv2 = SvREFCNT_inc (data);
		1893	req->ptr2 = svptr;
		1894
		1895	if (!SvREADONLY (data))
		1896	{
		1897	SvREADONLY_on (data);
		1898	req->flags |= FLAG_SV2_RO_OFF;
		1899	}
		1900
		1901	REQ_SEND;
		1902	}
		1903	}
		1904
		1905	void
1572	aio_busy (double delay, SV *callback=&PL_sv_undef)	1906	aio_busy (double delay, SV *callback = &PL_sv_undef)
1573	PPCODE:	1907	PPCODE:
1574	{	1908	{
1575	dREQ;	1909	dREQ;
1576		1910
1577	req->type = EIO_BUSY;	1911	req->type = EIO_BUSY;
…		…
1579		1913
1580	REQ_SEND;	1914	REQ_SEND;
1581	}	1915	}
1582		1916
1583	void	1917	void
1584	aio_group (SV *callback=&PL_sv_undef)	1918	aio_group (SV *callback = &PL_sv_undef)
1585	PPCODE:	1919	PPCODE:
1586	{	1920	{
1587	dREQ;	1921	dREQ;
1588		1922
1589	req->type = EIO_GROUP;	1923	req->type = EIO_GROUP;
1590		1924
		1925	PUTBACK;
1591	req_submit (req);	1926	req_submit (req);
		1927	SPAGAIN;
		1928
1592	XPUSHs (req_sv (req, aio_grp_stash));	1929	XPUSHs (req_sv (req, aio_grp_stash));
1593	}	1930	}
1594		1931
1595	void	1932	void
1596	aio_nop (SV *callback=&PL_sv_undef)	1933	aio_nop (SV *callback = &PL_sv_undef)
1597	ALIAS:	1934	ALIAS:
1598	aio_nop = EIO_NOP	1935	aio_nop = EIO_NOP
1599	aio_sync = EIO_SYNC	1936	aio_sync = EIO_SYNC
1600	PPCODE:	1937	PPCODE:
1601	{	1938	{
…		…
1605		1942
1606	REQ_SEND;	1943	REQ_SEND;
1607	}	1944	}
1608		1945
1609	int	1946	int
1610	aioreq_pri (int pri = 0)	1947	aioreq_pri (int pri = NO_INIT)
1611	CODE:	1948	CODE:
1612	RETVAL = next_pri;	1949	RETVAL = next_pri;
1613	if (items > 0)	1950	if (items > 0)
1614	{	1951	{
1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1952	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2042	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706	OUTPUT:	2043	OUTPUT:
1707	RETVAL	2044	RETVAL
1708		2045
1709	void	2046	void
1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2047	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1711	PPCODE:	2048	PPCODE:
1712	sv_unmagic (scalar, MMAP_MAGIC);	2049	sv_clear_foreign (scalar);
1713	{	2050	{
1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2051	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2052	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1716	if (addr == (void *)-1)	2053	if (addr == (void *)-1)
1717	XSRETURN_NO;	2054	XSRETURN_NO;
1718		2055
1719	sv_force_normal (scalar);	2056	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1720
1721	/* we store the length in mg_obj, as namlen is I32 :/ */
1722	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1723	->mg_obj = (SV *)length;
1724
1725	SvUPGRADE (scalar, SVt_PV); /* nop... */
1726		2057
1727	if (!(prot & PROT_WRITE))	2058	if (!(prot & PROT_WRITE))
1728	SvREADONLY_on (scalar);	2059	SvREADONLY_on (scalar);
1729		2060
1730	if (SvLEN (scalar))
1731	Safefree (SvPVX (scalar));
1732
1733	SvPVX (scalar) = (char *)addr;
1734	SvCUR_set (scalar, length);
1735	SvLEN_set (scalar, 0);
1736	SvPOK_only (scalar);
1737
1738	XSRETURN_YES;	2061	XSRETURN_YES;
1739	}	2062	}
1740		2063
1741	void	2064	void
1742	munmap (SV *scalar)	2065	munmap (SV *scalar)
1743	CODE:	2066	CODE:
1744	sv_unmagic (scalar, MMAP_MAGIC);	2067	sv_clear_foreign (scalar);
		2068
		2069	SV *
		2070	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2071	CODE:
		2072	{
		2073	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2074	void *new;
		2075
		2076	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2077	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2078
		2079	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2080
		2081	RETVAL = &PL_sv_no;
		2082
		2083	if (new != (void *)-1)
		2084	{
		2085	RETVAL = new == (void *)mg->mg_ptr
		2086	? newSVpvn ("0 but true", 10)
		2087	: &PL_sv_yes;
		2088
		2089	mg->mg_ptr = (char *)new;
		2090	mg->mg_obj = (SV *)new_length;
		2091
		2092	SvPVX (scalar) = mg->mg_ptr;
		2093	SvCUR_set (scalar, new_length);
		2094	}
		2095	}
		2096	OUTPUT:
		2097	RETVAL
1745		2098
1746	int	2099	int
1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2100	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1748	ALIAS:	2101	ALIAS:
1749	mprotect = 1	2102	mprotect = 1
1750	CODE:	2103	CODE:
1751	{	2104	{
1752	STRLEN svlen;	2105	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2106	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2107	STRLEN len = SvUV (length);
1755		2108
1756	if (offset < 0)	2109	if (offset < 0)
1757	offset += svlen;	2110	offset += svlen;
1758		2111
1759	if (offset < 0 || offset > svlen)	2112	if (offset < 0 || offset > svlen)
…		…
1773	}	2126	}
1774	OUTPUT:	2127	OUTPUT:
1775	RETVAL	2128	RETVAL
1776		2129
1777	int	2130	int
1778	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2131	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1779	CODE:	2132	CODE:
1780	{	2133	{
1781	STRLEN svlen;	2134	STRLEN svlen;
1782	void *addr = SvPVbyte (scalar, svlen);	2135	void *addr = SvPVbyte (scalar, svlen);
1783	size_t len = SvUV (length);	2136	size_t len = SvUV (length);
1784		2137
1785	if (offset < 0)	2138	if (offset < 0)
1786	offset += svlen;	2139	offset += svlen;
1787		2140
…		…
1794	addr = (void *)(((intptr_t)addr) + offset);	2147	addr = (void *)(((intptr_t)addr) + offset);
1795	eio_page_align (&addr, &len);	2148	eio_page_align (&addr, &len);
1796	#if _POSIX_MEMLOCK_RANGE	2149	#if _POSIX_MEMLOCK_RANGE
1797	RETVAL = munlock (addr, len);	2150	RETVAL = munlock (addr, len);
1798	#else	2151	#else
1799	RETVAL = ((errno = ENOSYS), -1);	2152	RETVAL = EIO_ENOSYS ();
1800	#endif	2153	#endif
1801	}	2154	}
1802	OUTPUT:	2155	OUTPUT:
1803	RETVAL	2156	RETVAL
1804		2157
…		…
1806	munlockall ()	2159	munlockall ()
1807	CODE:	2160	CODE:
1808	#if _POSIX_MEMLOCK	2161	#if _POSIX_MEMLOCK
1809	munlockall ();	2162	munlockall ();
1810	#else	2163	#else
1811	RETVAL = -1;	2164	RETVAL = EIO_ENOSYS ();
1812	errno = ENOSYS;
1813	#endif	2165	#endif
1814	OUTPUT:	2166	OUTPUT:
1815	RETVAL	2167	RETVAL
		2168
		2169	int
		2170	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2171	CODE:
		2172	{
		2173	#if HAVE_LINUX_SPLICE
		2174	loff_t off_in_, off_out_;
		2175	RETVAL = splice (
		2176	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2177	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2178	length, flags
		2179	);
		2180	#else
		2181	RETVAL = EIO_ENOSYS ();
		2182	#endif
		2183	}
		2184	OUTPUT:
		2185	RETVAL
		2186
		2187	int
		2188	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2189	CODE:
		2190	#if HAVE_LINUX_SPLICE
		2191	RETVAL = tee (rfh, wfh, length, flags);
		2192	#else
		2193	RETVAL = EIO_ENOSYS ();
		2194	#endif
		2195	OUTPUT:
		2196	RETVAL
		2197
		2198	int
		2199	pipesize (aio_rfd rfh, int new_size = -1)
		2200	PROTOTYPE: $;$
		2201	CODE:
		2202	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2203	if (new_size >= 0)
		2204	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2205	else
		2206	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2207	#else
		2208	errno = ENOSYS;
		2209	RETVAL = -1;
		2210	#endif
		2211	OUTPUT:
		2212	RETVAL
		2213
		2214	void
		2215	pipe2 (int flags = 0)
		2216	PROTOTYPE: ;$
		2217	PPCODE:
		2218	{
		2219	int fd[2];
		2220	int res;
		2221
		2222	if (flags)
		2223	#if HAVE_PIPE2
		2224	res = pipe2 (fd, flags);
		2225	#else
		2226	res = (errno = ENOSYS, -1);
		2227	#endif
		2228	else
		2229	res = pipe (fd);
		2230
		2231	if (!res)
		2232	{
		2233	EXTEND (SP, 2);
		2234	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2235	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2236	}
		2237	}
		2238
		2239	void
		2240	eventfd (unsigned int initval = 0, int flags = 0)
		2241	PPCODE:
		2242	{
		2243	int fd;
		2244	#if HAVE_EVENTFD
		2245	fd = eventfd (initval, flags);
		2246	#else
		2247	fd = (errno = ENOSYS, -1);
		2248	#endif
		2249
		2250	XPUSHs (newmortalFH (fd, O_RDWR));
		2251	}
		2252
		2253	void
		2254	timerfd_create (int clockid, int flags = 0)
		2255	PPCODE:
		2256	{
		2257	int fd;
		2258	#if HAVE_TIMERFD
		2259	fd = timerfd_create (clockid, flags);
		2260	#else
		2261	fd = (errno = ENOSYS, -1);
		2262	#endif
		2263
		2264	XPUSHs (newmortalFH (fd, O_RDWR));
		2265	}
		2266
		2267	void
		2268	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2269	PPCODE:
		2270	{
		2271	int fd = s_fileno_croak (fh, 0);
		2272	#if HAVE_TIMERFD
		2273	int res;
		2274	struct itimerspec its, ots;
		2275
		2276	ts_set (&its.it_interval, interval);
		2277	ts_set (&its.it_value , value);
		2278	res = timerfd_settime (fd, flags, &its, &ots);
		2279
		2280	if (!res)
		2281	{
		2282	EXTEND (SP, 2);
		2283	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2284	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2285	}
		2286	#else
		2287	errno = ENOSYS;
		2288	#endif
		2289	}
		2290
		2291	void
		2292	timerfd_gettime (SV *fh)
		2293	PPCODE:
		2294	{
		2295	int fd = s_fileno_croak (fh, 0);
		2296	#if HAVE_TIMERFD
		2297	int res;
		2298	struct itimerspec ots;
		2299	res = timerfd_gettime (fd, &ots);
		2300
		2301	if (!res)
		2302	{
		2303	EXTEND (SP, 2);
		2304	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2305	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2306	}
		2307	#else
		2308	errno = ENOSYS;
		2309	#endif
		2310	}
		2311
		2312	UV
		2313	get_fdlimit ()
		2314	CODE:
		2315	#if HAVE_RLIMITS
		2316	struct rlimit rl;
		2317	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2318	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2319	#endif
		2320	XSRETURN_UNDEF;
		2321	OUTPUT:
		2322	RETVAL
		2323
		2324	void
		2325	min_fdlimit (UV limit = 0x7fffffffU)
		2326	CODE:
		2327	{
		2328	#if HAVE_RLIMITS
		2329	struct rlimit rl;
		2330	rlim_t orig_rlim_max;
		2331	UV bit;
		2332
		2333	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2334	goto fail;
		2335
		2336	if (rl.rlim_cur == RLIM_INFINITY)
		2337	XSRETURN_YES;
		2338
		2339	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2340
		2341	if (rl.rlim_cur < limit)
		2342	{
		2343	rl.rlim_cur = limit;
		2344
		2345	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2346	rl.rlim_max = rl.rlim_cur;
		2347	}
		2348
		2349	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2350	XSRETURN_YES;
		2351
		2352	if (errno == EPERM)
		2353	{
		2354	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2355	/* our limit overflows a system-wide limit */
		2356	/* try an adaptive algorithm, but do not lower the hardlimit */
		2357	rl.rlim_max = 0;
		2358	for (bit = 0x40000000U; bit; bit >>= 1)
		2359	{
		2360	rl.rlim_max |= bit;
		2361	rl.rlim_cur = rl.rlim_max;
		2362
		2363	/* nevr decrease the hard limit */
		2364	if (rl.rlim_max < orig_rlim_max)
		2365	break;
		2366
		2367	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2368	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2369	}
		2370
		2371	/* now, raise the soft limit to the max permitted */
		2372	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2373	{
		2374	rl.rlim_cur = rl.rlim_max;
		2375	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2376	errno = EPERM;
		2377	}
		2378	}
		2379	#endif
		2380	fail:
		2381	XSRETURN_UNDEF;
		2382	}
1816		2383
1817	void _on_next_submit (SV *cb)	2384	void _on_next_submit (SV *cb)
1818	CODE:	2385	CODE:
1819	SvREFCNT_dec (on_next_submit);	2386	SvREFCNT_dec (on_next_submit);
1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2387	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1855	cancel (aio_req_ornot req)	2422	cancel (aio_req_ornot req)
1856	CODE:	2423	CODE:
1857	eio_cancel (req);	2424	eio_cancel (req);
1858		2425
1859	void	2426	void
1860	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2427	cb (aio_req_ornot req, SV *callback = NO_INIT)
1861	PPCODE:	2428	PPCODE:
1862	{	2429	{
1863	if (GIMME_V != G_VOID)	2430	if (GIMME_V != G_VOID)
1864	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2431	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1865		2432
1866	if (items > 1)	2433	if (items > 1)
1867	{	2434	{
1868	SV *cb_cv =get_cb (callback);	2435	SV *cb_cv = get_cb (callback);
1869		2436
1870	SvREFCNT_dec (req->callback);	2437	SvREFCNT_dec (req->callback);
1871	req->callback = SvREFCNT_inc (cb_cv);	2438	req->callback = SvREFCNT_inc (cb_cv);
1872	}	2439	}
1873	}	2440	}
…		…
1930	limit (aio_req grp, int limit)	2497	limit (aio_req grp, int limit)
1931	CODE:	2498	CODE:
1932	eio_grp_limit (grp, limit);	2499	eio_grp_limit (grp, limit);
1933		2500
1934	void	2501	void
1935	feed (aio_req grp, SV *callback=&PL_sv_undef)	2502	feed (aio_req grp, SV *callback = &PL_sv_undef)
1936	CODE:	2503	CODE:
1937	{	2504	{
1938	SvREFCNT_dec (grp->sv2);	2505	SvREFCNT_dec (grp->sv2);
1939	grp->sv2 = newSVsv (callback);	2506	grp->sv2 = newSVsv (callback);
1940	grp->feed = aio_grp_feed;	2507	grp->feed = aio_grp_feed;

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