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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.204 by root, Sat Oct 1 10:48:04 2011 UTC vs.
Revision 1.251 by root, Sat Jan 6 01:04:42 2018 UTC

…		…
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
22	#endif	36	#endif
23		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
…		…
62	#undef dup	76	#undef dup
63	#undef dup2	77	#undef dup2
64	#undef abort	78	#undef abort
65	#undef pipe	79	#undef pipe
66		80
		81	#define EIO_STRUCT_STAT struct _stati64
		82	#define EIO_STRUCT_STATI64
		83
67	#else	84	#else
68		85
69	#include <sys/time.h>	86	#include <sys/time.h>
70	#include <sys/select.h>	87	#include <sys/select.h>
71	#include <unistd.h>	88	#include <unistd.h>
72	#include <utime.h>	89	#include <utime.h>
73	#include <signal.h>	90	#include <signal.h>
74		91
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	92	#define EIO_STRUCT_STAT Stat_t
78		93
79	/* use NV for 32 bit perls as it allows larger offsets */
80	#if IVSIZE >= 8
81	# define VAL64 IV
82	# define SvVAL64 SvIV
83	# define newSVval64 newSViv
84	#else
85	# define VAL64 NV
86	# define SvVAL64 SvNV
87	# define newSVval64 newSVnv
88	#endif	94	#endif
89		95
90	/*****************************************************************************/	96	/*****************************************************************************/
91		97
92	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
97		103
98	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
100		106
101	/*****************************************************************************/	107	/*****************************************************************************/
		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_RLIMITS
		112	#include <sys/time.h>
		113	#include <sys/resource.h>
		114	#endif
102		115
103	typedef SV SV8; /* byte-sv, used for argument-checking */	116	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	117	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	118	typedef int aio_wfd; /* write file descriptor */
106		119
…		…
113	STRLEN stroffset; \	126	STRLEN stroffset; \
114	SV *self;	127	SV *self;
115		128
116	#define EIO_NO_WRAPPERS 1	129	#define EIO_NO_WRAPPERS 1
117		130
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	131	#include "libeio/eio.h"
120		132
121	static int req_invoke (eio_req *req);	133	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	134	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	135	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	136	#define EIO_DESTROY(req) req_destroy (req)
125		137
126	#include "libeio/eio.c"	138	#include "libeio/eio.c"
127		139
128	/* Linux/others */
129	#ifndef O_ASYNC
130	# define O_ASYNC 0
131	#endif
132	#ifndef O_DIRECT
133	# define O_DIRECT 0
134	#endif
135	#ifndef O_NOATIME
136	# define O_NOATIME 0
137	#endif
138
139	/* POSIX */
140	#ifndef O_CLOEXEC
141	# define O_CLOEXEC 0
142	#endif
143	#ifndef O_NOFOLLOW
144	# define O_NOFOLLOW 0
145	#endif
146	#ifndef O_NOCTTY
147	# define O_NOCTTY 0
148	#endif
149	#ifndef O_NONBLOCK
150	# define O_NONBLOCK 0
151	#endif
152	#ifndef O_EXEC
153	# define O_EXEC 0
154	#endif
155	#ifndef O_SEARCH
156	# define O_SEARCH 0
157	#endif
158	#ifndef O_DIRECTORY
159	# define O_DIRECTORY 0
160	#endif
161	#ifndef O_DSYNC
162	# define O_DSYNC 0
163	#endif
164	#ifndef O_RSYNC
165	# define O_RSYNC 0
166	#endif
167	#ifndef O_SYNC
168	# define O_SYNC 0
169	#endif
170	#ifndef O_TTY_INIT
171	# define O_TTY_INIT 0
172	#endif
173
174	#ifndef POSIX_FADV_NORMAL
175	# define POSIX_FADV_NORMAL 0
176	#endif
177	#ifndef POSIX_FADV_SEQUENTIAL
178	# define POSIX_FADV_SEQUENTIAL 0
179	#endif
180	#ifndef POSIX_FADV_RANDOM
181	# define POSIX_FADV_RANDOM 0
182	#endif
183	#ifndef POSIX_FADV_NOREUSE
184	# define POSIX_FADV_NOREUSE 0
185	#endif
186	#ifndef POSIX_FADV_WILLNEED
187	# define POSIX_FADV_WILLNEED 0
188	#endif
189	#ifndef POSIX_FADV_DONTNEED
190	# define POSIX_FADV_DONTNEED 0
191	#endif
192
193	#if !HAVE_POSIX_FADVISE	140	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	141	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	142	#endif
196		143
197	#ifndef POSIX_MADV_NORMAL
198	# define POSIX_MADV_NORMAL 0
199	#endif
200	#ifndef POSIX_MADV_SEQUENTIAL
201	# define POSIX_MADV_SEQUENTIAL 0
202	#endif
203	#ifndef POSIX_MADV_RANDOM
204	# define POSIX_MADV_RANDOM 0
205	#endif
206	#ifndef POSIX_MADV_WILLNEED
207	# define POSIX_MADV_WILLNEED 0
208	#endif
209	#ifndef POSIX_MADV_DONTNEED
210	# define POSIX_MADV_DONTNEED 0
211	#endif
212
213	#if !HAVE_POSIX_MADVISE	144	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	145	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215	#endif
216
217	#ifndef PROT_NONE
218	# define PROT_NONE 0
219	#endif
220	#ifndef PROT_READ
221	# define PROT_READ 0
222	#endif
223	#ifndef PROT_WRITE
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_EXEC
227	# define PROT_EXEC 0
228	#endif
229
230	#ifndef ST_RDONLY
231	# define ST_RDONLY 0
232	#endif
233	#ifndef ST_NOSUID
234	# define ST_NOSUID 0
235	#endif
236	#ifndef ST_NODEV
237	# define ST_NODEV 0
238	#endif
239	#ifndef ST_NOEXEC
240	# define ST_NOEXEC 0
241	#endif
242	#ifndef ST_SYNCHRONOUS
243	# define ST_SYNCHRONOUS 0
244	#endif
245	#ifndef ST_MANDLOCK
246	# define ST_MANDLOCK 0
247	#endif
248	#ifndef ST_WRITE
249	# define ST_WRITE 0
250	#endif
251	#ifndef ST_APPEND
252	# define ST_APPEND 0
253	#endif
254	#ifndef ST_IMMUTABLE
255	# define ST_IMMUTABLE 0
256	#endif
257	#ifndef ST_NOATIME
258	# define ST_NOATIME 0
259	#endif
260	#ifndef ST_NODIRATIME
261	# define ST_NODIRATIME 0
262	#endif
263	#ifndef ST_RELATIME
264	# define ST_RELATIME 0
265	#endif
266
267	#ifndef S_IFIFO
268	# define S_IFIFO 0
269	#endif
270	#ifndef S_IFCHR
271	# define S_IFCHR 0
272	#endif
273	#ifndef S_IFBLK
274	# define S_IFBLK 0
275	#endif
276	#ifndef S_IFLNK
277	# define S_IFLNK 0
278	#endif
279	#ifndef S_IFREG
280	# define S_IFREG 0
281	#endif
282	#ifndef S_IFDIR
283	# define S_IFDIR 0
284	#endif
285	#ifndef S_IFWHT
286	# define S_IFWHT 0
287	#endif
288	#ifndef S_IFSOCK
289	# define S_IFSOCK 0
290	#endif	146	#endif
291		147
292	#ifndef MAP_ANONYMOUS	148	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	149	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	150	# define MAP_ANONYMOUS MAP_ANON
295	# else	151	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	153	# endif
298	#endif	154	#endif
299	#ifndef MAP_HUGETLB	155
300	# define MAP_HUGETLB 0	156	/* defines all sorts of constants to 0 unless they are already defined */
301	#endif	157	/* also provides const_iv_ and const_niv_ macros for them */
302	#ifndef MAP_LOCKED	158	#include "def0.h"
303	# define MAP_LOCKED 0
304	#endif
305	#ifndef MAP_NORESERVE
306	# define MAP_NORESERVE 0
307	#endif
308	#ifndef MAP_POPULATE
309	# define MAP_POPULATE 0
310	#endif
311	#ifndef MAP_NONBLOCK
312	# define MAP_NONBLOCK 0
313	#endif
314		159
315	#ifndef makedev	160	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	161	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	162	#endif
318	#ifndef major	163	#ifndef major
…		…
320	#endif	165	#endif
321	#ifndef minor	166	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	167	# define minor(dev) ((dev) & 0xff)
323	#endif	168	#endif
324		169
325	#ifndef PAGESIZE	170	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	171	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	172	#endif
		173
		174	/*****************************************************************************/
		175
		176	#if !_POSIX_MAPPED_FILES
		177	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		178	# define munmap(addr,length) EIO_ENOSYS ()
		179	#endif
		180
		181	#if !_POSIX_MEMORY_PROTECTION
		182	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		183	#endif
		184
		185	#define FOREIGN_MAGIC PERL_MAGIC_ext
		186
		187	static int ecb_cold
		188	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		189	{
		190	int old_errno = errno;
		191	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		192	errno = old_errno;
		193
		194	mg->mg_obj = 0; /* just in case */
		195
		196	SvREADONLY_off (sv);
		197
		198	if (SvPVX (sv) != mg->mg_ptr)
		199	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		200
		201	SvCUR_set (sv, 0);
		202	SvPVX (sv) = 0;
		203	SvOK_off (sv);
		204
		205	return 0;
		206	}
		207
		208	static MGVTBL mmap_vtbl = {
		209	0, 0, 0, 0, mmap_free
		210	};
		211
		212	static int ecb_cold
		213	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		214	{
		215	free (mg->mg_ptr);
		216	mg->mg_obj = 0; /* just in case */
		217
		218	SvREADONLY_off (sv);
		219
		220	if (SvPVX (sv) != mg->mg_ptr)
		221	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		222
		223	SvCUR_set (sv, 0);
		224	SvPVX (sv) = 0;
		225	SvOK_off (sv);
		226
		227	return 0;
		228	}
		229
		230	static MGVTBL sysfree_vtbl = {
		231	0, 0, 0, 0, sysfree_free
		232	};
		233
		234	/*****************************************************************************/
		235
		236	/* helper: set scalar to foreign ptr with custom free */
		237	static void
		238	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		239	{
		240	sv_force_normal (sv);
		241
		242	/* we store the length in mg_obj, as namlen is I32 :/ */
		243	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		244	->mg_obj = (SV *)length;
		245
		246	SvUPGRADE (sv, SVt_PV); /* nop... */
		247
		248	if (SvLEN (sv))
		249	Safefree (SvPVX (sv));
		250
		251	SvPVX (sv) = (char *)addr;
		252	SvCUR_set (sv, length);
		253	SvLEN_set (sv, 0);
		254	SvPOK_only (sv);
		255	}
		256
		257	static void
		258	sv_clear_foreign (SV *sv)
		259	{
		260	/* todo: iterate over magic and only free ours, but of course */
		261	/* the perl5porters will call that (correct) behaviour buggy */
		262	sv_unmagic (sv, FOREIGN_MAGIC);
		263	}
		264
		265	/*****************************************************************************/
		266
		267	static void
		268	fiemap (eio_req *req)
		269	{
		270	req->result = -1;
		271
		272	#if HAVE_FIEMAP
		273	/* assume some c99 */
		274	struct fiemap *fiemap = 0;
		275	size_t end_offset;
		276	int count = req->int3;
		277
		278	req->flags |= EIO_FLAG_PTR1_FREE;
		279
		280	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		281	/* increase in 3.5kb steps */
		282	if (count < 0)
		283	count = 8;
		284
		285	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		286	errno = ENOMEM;
		287	if (!fiemap)
		288	return;
		289
		290	req->ptr1 = fiemap;
		291
		292	fiemap->fm_start = req->offs;
		293	fiemap->fm_length = req->size;
		294	fiemap->fm_flags = req->int2;
		295	fiemap->fm_extent_count = count;
		296
		297	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		298	return;
		299
		300	if (req->int3 >= 0 /* not autosizing */
		301	|| !fiemap->fm_mapped_extents /* no more extents */
		302	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		303	goto done;
		304
		305	/* else we have to loop -
		306	* it would be tempting (actually I tried that first) to just query the
		307	* number of extents needed, but linux often feels like not returning all
		308	* extents, without telling us it left any out. this complicates
		309	* this quite a bit.
		310	*/
		311
		312	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		313
		314	for (;;)
		315	{
		316	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		317	char scratch[3072];
		318	struct fiemap *incmap = (struct fiemap *)scratch;
		319
		320	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		321	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		322	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		323	incmap->fm_flags = fiemap->fm_flags;
		324	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		325
		326	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		327	return;
		328
		329	if (!incmap->fm_mapped_extents)
		330	goto done;
		331
		332	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		333	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		334	errno = ENOMEM;
		335	if (!fiemap)
		336	return;
		337
		338	req->ptr1 = fiemap;
		339
		340	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		341	{
		342	struct fiemap_extent *e = incmap->fm_extents + count;
		343
		344	if (e->fe_logical + e->fe_length >= end_offset)
		345	goto done;
		346
		347	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		348
		349	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		350	goto done;
		351
		352	}
		353	}
		354
		355	done:
		356	req->result = 0;
		357
		358	#else
		359	errno = ENOSYS;
		360	#endif
		361	}
		362
		363	/*****************************************************************************/
328		364
329	enum {	365	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	366	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	367	};
332		368
…		…
371	}	407	}
372		408
373	static SV *	409	static SV *
374	newSVaio_wd (aio_wd wd)	410	newSVaio_wd (aio_wd wd)
375	{	411	{
376	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	412	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
377	}	413	}
378		414
379	static aio_req	415	static aio_req
380	SvAIO_REQ (SV *sv)	416	SvAIO_REQ (SV *sv)
381	{	417	{
…		…
400	|| SvTYPE (SvRV (sv)) != SVt_PVMG	436	|| SvTYPE (SvRV (sv)) != SVt_PVMG
401	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	437	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
402	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	438	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
403		439
404	return (aio_wd)(long)SvIVX (SvRV (sv));	440	return (aio_wd)(long)SvIVX (SvRV (sv));
		441	}
		442
		443	static SV *
		444	newmortalFH (int fd, int flags)
		445	{
		446	if (fd < 0)
		447	return &PL_sv_undef;
		448
		449	GV *gv = (GV *)sv_newmortal ();
		450	char sym[64];
		451	int symlen;
		452
		453	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		454	gv_init (gv, aio_stash, sym, symlen, 0);
		455
		456	symlen = snprintf (
		457	sym,
		458	sizeof (sym),
		459	"%s&=%d",
		460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		461	fd
		462	);
		463
		464	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		465	? (SV *)gv : &PL_sv_undef;
405	}	466	}
406		467
407	static void	468	static void
408	aio_grp_feed (aio_req grp)	469	aio_grp_feed (aio_req grp)
409	{	470	{
…		…
537	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	598	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
538	}	599	}
539	break;	600	break;
540		601
541	case EIO_OPEN:	602	case EIO_OPEN:
542	{	603	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
543	/* convert fd to fh */
544	SV *fh = &PL_sv_undef;
545
546	if (req->result >= 0)
547	{
548	GV *gv = (GV *)sv_newmortal ();
549	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
550	char sym [64];
551	int symlen;
552
553	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
554	gv_init (gv, aio_stash, sym, symlen, 0);
555
556	symlen = snprintf (
557	sym,
558	sizeof (sym),
559	"%s&=%d",
560	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
561	(int)req->result
562	);
563
564	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
565	fh = (SV *)gv;
566	}
567
568	PUSHs (fh);
569	}
570	break;	604	break;
571		605
572	case EIO_STATVFS:	606	case EIO_STATVFS:
573	case EIO_FSTATVFS:	607	case EIO_FSTATVFS:
574	{	608	{
…		…
577	#ifndef _WIN32	611	#ifndef _WIN32
578	if (req->result >= 0)	612	if (req->result >= 0)
579	{	613	{
580	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	614	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
581	HV *hv = newHV ();	615	HV *hv = newHV ();
		616	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		617	* chooses to make it a struct.
		618	*/
		619	unsigned long fsid = 0;
		620	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
582		621
583	rv = sv_2mortal (newRV_noinc ((SV *)hv));	622	rv = sv_2mortal (newRV_noinc ((SV *)hv));
584		623
585	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	624	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
586	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	625	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
588	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	627	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
589	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	628	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
590	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	629	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
591	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	630	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
592	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	631	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
593	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	632	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
594	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	633	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
595	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	634	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
596	}	635	}
597	#endif	636	#endif
598		637
…		…
633	if (!(PL_laststatval = req->result))	672	if (!(PL_laststatval = req->result))
634	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	673	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
635	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	674	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
636		675
637	PUSHs (sv_result);	676	PUSHs (sv_result);
		677	break;
		678
		679	case EIO_SEEK:
		680	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
638	break;	681	break;
639		682
640	case EIO_READ:	683	case EIO_READ:
641	{	684	{
642	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	685	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
645	SvSETMAGIC (req->sv2);	688	SvSETMAGIC (req->sv2);
646	PUSHs (sv_result);	689	PUSHs (sv_result);
647	}	690	}
648	break;	691	break;
649		692
		693	case EIO_SLURP:
		694	{
		695	if (req->result >= 0)
		696	{
		697	/* if length was originally not known, we steal the malloc'ed memory */
		698	if (req->flags & EIO_FLAG_PTR2_FREE)
		699	{
		700	req->flags &= ~EIO_FLAG_PTR2_FREE;
		701	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		702	}
		703	else
		704	SvCUR_set (req->sv2, req->result);
		705	}
		706
		707	PUSHs (sv_result);
		708	}
		709	break;
		710
		711	case EIO_CUSTOM:
		712	if (req->feed == fiemap)
		713	{
		714	#if HAVE_FIEMAP
		715	if (!req->result)
		716	{
		717	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		718
		719	if (fiemap->fm_extent_count)
		720	{
		721	AV *av = newAV ();
		722	int i;
		723
		724	while (fiemap->fm_mapped_extents)
		725	{
		726	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		727	AV *ext_av = newAV ();
		728
		729	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		730	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		731	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		732	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		733
		734	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		735	}
		736
		737	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		738	}
		739	else
		740	{
		741	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		742	PUSHs (sv_result);
		743	}
		744	}
		745	#endif
		746	}
		747	else
		748	PUSHs (sv_result);
		749	break;
		750
650	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	751	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
651	if (req->result > 0)	752	if (req->result > 0)
652	SvIV_set (sv_result, 0);	753	SvIV_set (sv_result, 0);
653	/* FALLTHROUGH */	754	/* FALLTHROUGH */
654		755
…		…
719	{	820	{
720	while (eio_nreqs ())	821	while (eio_nreqs ())
721	{	822	{
722	int size;	823	int size;
723		824
724	X_LOCK (reslock);	825	X_LOCK (EIO_POOL->reslock);
725	size = res_queue.size;	826	size = EIO_POOL->res_queue.size;
726	X_UNLOCK (reslock);	827	X_UNLOCK (EIO_POOL->reslock);
727		828
728	if (size)	829	if (size)
729	return;	830	return;
730		831
731	etp_maybe_start_thread ();	832	etp_maybe_start_thread (EIO_POOL);
732		833
733	s_epipe_wait (&respipe);	834	s_epipe_wait (&respipe);
734	}	835	}
735	}	836	}
736		837
…		…
757	create_respipe ();	858	create_respipe ();
758		859
759	if (eio_init (want_poll, done_poll) < 0)	860	if (eio_init (want_poll, done_poll) < 0)
760	croak ("IO::AIO: unable to initialise eio library");	861	croak ("IO::AIO: unable to initialise eio library");
761	}	862	}
762
763	/*****************************************************************************/
764
765	#if !_POSIX_MAPPED_FILES
766	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
767	# define munmap(addr,length) (errno = ENOSYS, -1)
768	#endif
769
770	#if !_POSIX_MEMORY_PROTECTION
771	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
772	# define PROT_NONE 0
773	# define PROT_WRITE 0
774	# define MAP_PRIVATE 0
775	# define MAP_SHARED 0
776	# define MAP_FIXED 0
777	#endif
778
779	#define MMAP_MAGIC PERL_MAGIC_ext
780
781	static int ecb_cold
782	mmap_free (pTHX_ SV *sv, MAGIC *mg)
783	{
784	int old_errno = errno;
785	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
786	errno = old_errno;
787
788	mg->mg_obj = 0; /* just in case */
789
790	SvREADONLY_off (sv);
791
792	if (SvPVX (sv) != mg->mg_ptr)
793	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
794
795	SvCUR_set (sv, 0);
796	SvPVX (sv) = 0;
797	SvOK_off (sv);
798
799	return 0;
800	}
801
802	static MGVTBL mmap_vtbl = {
803	0, 0, 0, 0, mmap_free
804	};
805		863
806	/*****************************************************************************/	864	/*****************************************************************************/
807		865
808	static SV *	866	static SV *
809	get_cb (SV *cb_sv)	867	get_cb (SV *cb_sv)
…		…
864	else	922	else
865	*wd = EIO_INVALID_WD;	923	*wd = EIO_INVALID_WD;
866	}	924	}
867	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)	925	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
868	{	926	{
869	*wd = SvIVX (rv);	927	*wd = (aio_wd)(long)SvIVX (rv);
870	*wdsv = SvREFCNT_inc_NN (rv);	928	*wdsv = SvREFCNT_inc_NN (rv);
871	*ptr = ".";	929	*ptr = ".";
872	return; /* path set to "." */	930	return; /* path set to "." */
873	}	931	}
874	else	932	else
875	croak ("IO::AIO: pathname arguments must be specified as strings, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");	933	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
876	}	934	}
877		935
878	*pathsv = newSVsv (path);	936	*pathsv = newSVsv (path);
879	*ptr = SvPVbyte_nolen (*pathsv);	937	*ptr = SvPVbyte_nolen (*pathsv);
880	}	938	}
…		…
920	IV iv;	978	IV iv;
921	} *civ, const_iv[] = {	979	} *civ, const_iv[] = {
922	# define const_niv(name, value) { # name, (IV) value },	980	# define const_niv(name, value) { # name, (IV) value },
923	# define const_iv(name) { # name, (IV) name },	981	# define const_iv(name) { # name, (IV) name },
924	# define const_eio(name) { # name, (IV) EIO_ ## name },	982	# define const_eio(name) { # name, (IV) EIO_ ## name },
		983
		984	/* you have to re-run ./gendef0 after adding/removing any constants here */
		985	/* the first block can be undef if missing */
		986	const_iv (ENOSYS)
925	const_iv (EXDEV)	987	const_iv (EXDEV)
926	const_iv (ENOSYS)	988	const_iv (EBADR)
		989
		990	/* for lseek */
		991	const_iv (SEEK_DATA)
		992	const_iv (SEEK_HOLE)
		993
		994	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		995	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		996	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		997	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		998	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		999	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1000
		1001	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1002	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1003	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1004	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1005	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1006
		1007	/* the second block will be 0 when missing */
927	const_iv (O_RDONLY)	1008	const_iv (O_RDONLY)
928	const_iv (O_WRONLY)	1009	const_iv (O_WRONLY)
929	const_iv (O_RDWR)	1010	const_iv (O_RDWR)
930	const_iv (O_CREAT)	1011	const_iv (O_CREAT)
931	const_iv (O_TRUNC)	1012	const_iv (O_TRUNC)
…		…
944	const_iv (O_SEARCH)	1025	const_iv (O_SEARCH)
945	const_iv (O_DIRECTORY)	1026	const_iv (O_DIRECTORY)
946	const_iv (O_DSYNC)	1027	const_iv (O_DSYNC)
947	const_iv (O_RSYNC)	1028	const_iv (O_RSYNC)
948	const_iv (O_SYNC)	1029	const_iv (O_SYNC)
		1030	const_iv (O_PATH)
		1031	const_iv (O_TMPFILE)
949	const_iv (O_TTY_INIT)	1032	const_iv (O_TTY_INIT)
950		1033
951	const_iv (S_IFIFO)	1034	const_iv (S_IFIFO)
952	const_iv (S_IFCHR)	1035	const_iv (S_IFCHR)
953	const_iv (S_IFBLK)	1036	const_iv (S_IFBLK)
…		…
955	const_iv (S_IFREG)	1038	const_iv (S_IFREG)
956	const_iv (S_IFDIR)	1039	const_iv (S_IFDIR)
957	const_iv (S_IFWHT)	1040	const_iv (S_IFWHT)
958	const_iv (S_IFSOCK)	1041	const_iv (S_IFSOCK)
959	const_iv (S_IFMT)	1042	const_iv (S_IFMT)
960
961	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
962	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
963	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
964	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
965	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
966	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
967
968	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
969	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
970	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
971	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
972	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
973		1043
974	const_iv (ST_RDONLY)	1044	const_iv (ST_RDONLY)
975	const_iv (ST_NOSUID)	1045	const_iv (ST_NOSUID)
976	const_iv (ST_NODEV)	1046	const_iv (ST_NODEV)
977	const_iv (ST_NOEXEC)	1047	const_iv (ST_NOEXEC)
…		…
987	const_iv (PROT_NONE)	1057	const_iv (PROT_NONE)
988	const_iv (PROT_EXEC)	1058	const_iv (PROT_EXEC)
989	const_iv (PROT_READ)	1059	const_iv (PROT_READ)
990	const_iv (PROT_WRITE)	1060	const_iv (PROT_WRITE)
991		1061
992	/*const_iv (MAP_FIXED)*/
993	const_iv (MAP_PRIVATE)	1062	const_iv (MAP_PRIVATE)
994	const_iv (MAP_SHARED)	1063	const_iv (MAP_SHARED)
		1064	const_iv (MAP_FIXED)
995	const_iv (MAP_ANONYMOUS)	1065	const_iv (MAP_ANONYMOUS)
996		1066
997	/* linuxish */	1067	/* linuxish */
998	const_iv (MAP_HUGETLB)
999	const_iv (MAP_LOCKED)	1068	const_iv (MAP_LOCKED)
1000	const_iv (MAP_NORESERVE)	1069	const_iv (MAP_NORESERVE)
1001	const_iv (MAP_POPULATE)	1070	const_iv (MAP_POPULATE)
1002	const_iv (MAP_NONBLOCK)	1071	const_iv (MAP_NONBLOCK)
		1072	const_iv (MAP_GROWSDOWN)
		1073	const_iv (MAP_32BIT)
		1074	const_iv (MAP_HUGETLB)
		1075	const_iv (MAP_STACK)
		1076
		1077	const_iv (F_DUPFD_CLOEXEC)
		1078
		1079	const_iv (F_OFD_GETLK)
		1080	const_iv (F_OFD_SETLK)
		1081	const_iv (F_OFD_GETLKW)
		1082
		1083	const_iv (FIFREEZE)
		1084	const_iv (FITHAW)
		1085	const_iv (FITRIM)
		1086	const_iv (FICLONE)
		1087	const_iv (FICLONERANGE)
		1088	const_iv (FIDEDUPERANGE)
		1089
		1090	const_iv (FS_IOC_GETFLAGS)
		1091	const_iv (FS_IOC_SETFLAGS)
		1092	const_iv (FS_IOC_GETVERSION)
		1093	const_iv (FS_IOC_SETVERSION)
		1094	const_iv (FS_IOC_FIEMAP)
		1095	const_iv (FS_IOC_FSGETXATTR)
		1096	const_iv (FS_IOC_FSSETXATTR)
		1097	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1098	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1099	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1100
		1101	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1102
		1103	const_iv (FS_SECRM_FL)
		1104	const_iv (FS_UNRM_FL)
		1105	const_iv (FS_COMPR_FL)
		1106	const_iv (FS_SYNC_FL)
		1107	const_iv (FS_IMMUTABLE_FL)
		1108	const_iv (FS_APPEND_FL)
		1109	const_iv (FS_NODUMP_FL)
		1110	const_iv (FS_NOATIME_FL)
		1111	const_iv (FS_DIRTY_FL)
		1112	const_iv (FS_COMPRBLK_FL)
		1113	const_iv (FS_NOCOMP_FL)
		1114	const_iv (FS_ENCRYPT_FL)
		1115	const_iv (FS_BTREE_FL)
		1116	const_iv (FS_INDEX_FL)
		1117	const_iv (FS_JOURNAL_DATA_FL)
		1118	const_iv (FS_NOTAIL_FL)
		1119	const_iv (FS_DIRSYNC_FL)
		1120	const_iv (FS_TOPDIR_FL)
		1121	const_iv (FS_FL_USER_MODIFIABLE)
		1122
		1123	const_iv (FS_XFLAG_REALTIME)
		1124	const_iv (FS_XFLAG_PREALLOC)
		1125	const_iv (FS_XFLAG_IMMUTABLE)
		1126	const_iv (FS_XFLAG_APPEND)
		1127	const_iv (FS_XFLAG_SYNC)
		1128	const_iv (FS_XFLAG_NOATIME)
		1129	const_iv (FS_XFLAG_NODUMP)
		1130	const_iv (FS_XFLAG_RTINHERIT)
		1131	const_iv (FS_XFLAG_PROJINHERIT)
		1132	const_iv (FS_XFLAG_NOSYMLINKS)
		1133	const_iv (FS_XFLAG_EXTSIZE)
		1134	const_iv (FS_XFLAG_EXTSZINHERIT)
		1135	const_iv (FS_XFLAG_NODEFRAG)
		1136	const_iv (FS_XFLAG_FILESTREAM)
		1137	const_iv (FS_XFLAG_DAX)
		1138	const_iv (FS_XFLAG_HASATTR)
		1139
		1140	const_iv (FIEMAP_FLAG_SYNC)
		1141	const_iv (FIEMAP_FLAG_XATTR)
		1142	const_iv (FIEMAP_FLAGS_COMPAT)
		1143	const_iv (FIEMAP_EXTENT_LAST)
		1144	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1145	const_iv (FIEMAP_EXTENT_DELALLOC)
		1146	const_iv (FIEMAP_EXTENT_ENCODED)
		1147	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1148	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1149	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1150	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1151	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1152	const_iv (FIEMAP_EXTENT_MERGED)
		1153	const_iv (FIEMAP_EXTENT_SHARED)
		1154
		1155	const_iv (SPLICE_F_MOVE)
		1156	const_iv (SPLICE_F_NONBLOCK)
		1157	const_iv (SPLICE_F_MORE)
		1158	const_iv (SPLICE_F_GIFT)
		1159
		1160	/* these are libeio constants, and are independent of gendef0 */
		1161	const_eio (SEEK_SET)
		1162	const_eio (SEEK_CUR)
		1163	const_eio (SEEK_END)
1003		1164
1004	const_eio (MCL_FUTURE)	1165	const_eio (MCL_FUTURE)
1005	const_eio (MCL_CURRENT)	1166	const_eio (MCL_CURRENT)
1006		1167
1007	const_eio (MS_ASYNC)	1168	const_eio (MS_ASYNC)
…		…
1013	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1174	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1014	const_eio (SYNC_FILE_RANGE_WRITE)	1175	const_eio (SYNC_FILE_RANGE_WRITE)
1015	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1176	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1016		1177
1017	const_eio (FALLOC_FL_KEEP_SIZE)	1178	const_eio (FALLOC_FL_KEEP_SIZE)
		1179	const_eio (FALLOC_FL_PUNCH_HOLE)
		1180	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1181	const_eio (FALLOC_FL_ZERO_RANGE)
		1182	const_eio (FALLOC_FL_INSERT_RANGE)
		1183	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1184
		1185	const_eio (RENAME_NOREPLACE)
		1186	const_eio (RENAME_EXCHANGE)
		1187	const_eio (RENAME_WHITEOUT)
1018		1188
1019	const_eio (READDIR_DENTS)	1189	const_eio (READDIR_DENTS)
1020	const_eio (READDIR_DIRS_FIRST)	1190	const_eio (READDIR_DIRS_FIRST)
1021	const_eio (READDIR_STAT_ORDER)	1191	const_eio (READDIR_STAT_ORDER)
1022	const_eio (READDIR_FOUND_UNKNOWN)	1192	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1090	PROTOTYPE: $	1260	PROTOTYPE: $
1091	CODE:	1261	CODE:
1092	max_outstanding = maxreqs;	1262	max_outstanding = maxreqs;
1093		1263
1094	void	1264	void
1095	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1265	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1096	PPCODE:	1266	PPCODE:
1097	{	1267	{
1098	dREQ;	1268	dREQ;
1099		1269
1100	req->type = EIO_WD_OPEN;	1270	req->type = EIO_WD_OPEN;
…		…
1102		1272
1103	REQ_SEND;	1273	REQ_SEND;
1104	}	1274	}
1105		1275
1106	void	1276	void
1107	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1277	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1108	PPCODE:	1278	PPCODE:
1109	{	1279	{
1110	dREQ;	1280	dREQ;
1111		1281
1112	req->type = EIO_OPEN;	1282	req->type = EIO_OPEN;
…		…
1116		1286
1117	REQ_SEND;	1287	REQ_SEND;
1118	}	1288	}
1119		1289
1120	void	1290	void
1121	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1291	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1122	ALIAS:	1292	ALIAS:
1123	aio_fsync = EIO_FSYNC	1293	aio_fsync = EIO_FSYNC
1124	aio_fdatasync = EIO_FDATASYNC	1294	aio_fdatasync = EIO_FDATASYNC
1125	aio_syncfs = EIO_SYNCFS	1295	aio_syncfs = EIO_SYNCFS
1126	PPCODE:	1296	PPCODE:
1127	{	1297	{
1128	int fd = s_fileno_croak (fh, 0);	1298	int fd = s_fileno_croak (fh, 0);
1129	dREQ;	1299	dREQ;
1130		1300
1131	req->type = ix;	1301	req->type = ix;
1132	req->sv1 = newSVsv (fh);	1302	req->sv1 = newSVsv (fh);
1133	req->int1 = fd;	1303	req->int1 = fd;
1134		1304
1135	REQ_SEND (req);	1305	REQ_SEND;
1136	}	1306	}
1137		1307
1138	void	1308	void
1139	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1309	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1140	PPCODE:	1310	PPCODE:
1141	{	1311	{
1142	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
1143	dREQ;	1313	dREQ;
1144		1314
1145	req->type = EIO_SYNC_FILE_RANGE;	1315	req->type = EIO_SYNC_FILE_RANGE;
1146	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1147	req->int1 = fd;	1317	req->int1 = fd;
1148	req->offs = offset;	1318	req->offs = offset;
1149	req->size = nbytes;	1319	req->size = nbytes;
1150	req->int2 = flags;	1320	req->int2 = flags;
1151		1321
1152	REQ_SEND (req);	1322	REQ_SEND;
1153	}	1323	}
1154		1324
1155	void	1325	void
1156	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1326	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1157	PPCODE:	1327	PPCODE:
1158	{	1328	{
1159	int fd = s_fileno_croak (fh, 0);	1329	int fd = s_fileno_croak (fh, 0);
1160	dREQ;	1330	dREQ;
1161		1331
1162	req->type = EIO_FALLOCATE;	1332	req->type = EIO_FALLOCATE;
1163	req->sv1 = newSVsv (fh);	1333	req->sv1 = newSVsv (fh);
1164	req->int1 = fd;	1334	req->int1 = fd;
1165	req->int2 = mode;	1335	req->int2 = mode;
1166	req->offs = offset;	1336	req->offs = offset;
1167	req->size = len;	1337	req->size = len;
1168		1338
1169	REQ_SEND (req);	1339	REQ_SEND;
1170	}	1340	}
1171		1341
1172	void	1342	void
1173	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1343	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1174	PPCODE:	1344	PPCODE:
1175	{	1345	{
1176	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1346	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1177	int fd = s_fileno_croak (fh, 0);	1347	int fd = s_fileno_croak (fh, 0);
1178	dREQ;	1348	dREQ;
1179		1349
1180	if (expect_false (close_fd < 0))	1350	if (expect_false (close_fd < 0))
1181	{	1351	{
1182	int pipefd [2];	1352	int pipefd [2];
…		…
1198	req->type = EIO_DUP2;	1368	req->type = EIO_DUP2;
1199	req->int1 = close_fd;	1369	req->int1 = close_fd;
1200	req->sv2 = newSVsv (fh);	1370	req->sv2 = newSVsv (fh);
1201	req->int2 = fd;	1371	req->int2 = fd;
1202		1372
1203	REQ_SEND (req);	1373	REQ_SEND;
1204	}	1374	}
1205		1375
1206	void	1376	void
		1377	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1378	PPCODE:
		1379	{
		1380	int fd = s_fileno_croak (fh, 0);
		1381	dREQ;
		1382
		1383	req->type = EIO_SEEK;
		1384	req->sv1 = newSVsv (fh);
		1385	req->int1 = fd;
		1386	req->offs = SvVAL64 (offset);
		1387	req->int2 = whence;
		1388
		1389	REQ_SEND;
		1390	}
		1391
		1392	void
1207	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1393	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1208	ALIAS:	1394	ALIAS:
1209	aio_read = EIO_READ	1395	aio_read = EIO_READ
1210	aio_write = EIO_WRITE	1396	aio_write = EIO_WRITE
1211	PPCODE:	1397	PPCODE:
1212	{	1398	{
…		…
1228	len = svlen - dataoffset;	1414	len = svlen - dataoffset;
1229	}	1415	}
1230	else	1416	else
1231	{	1417	{
1232	/* read: check type and grow scalar as necessary */	1418	/* read: check type and grow scalar as necessary */
1233	SvUPGRADE (data, SVt_PV);	1419	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1234	svptr = SvGROW (data, len + dataoffset + 1);	1420	svptr = sv_grow (data, len + dataoffset);
		1421	else if (SvCUR (data) < len + dataoffset)
		1422	croak ("length + dataoffset outside of scalar, and cannot grow");
1235	}	1423	}
1236		1424
1237	{	1425	{
1238	dREQ;	1426	dREQ;
1239		1427
…		…
1255	REQ_SEND;	1443	REQ_SEND;
1256	}	1444	}
1257	}	1445	}
1258		1446
1259	void	1447	void
		1448	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1449	ALIAS:
		1450	aio_ioctl = EIO_IOCTL
		1451	aio_fcntl = EIO_FCNTL
		1452	PPCODE:
		1453	{
		1454	int fd = s_fileno_croak (fh, 0);
		1455	char *svptr;
		1456
		1457	if (SvPOK (arg) || !SvNIOK (arg))
		1458	{
		1459	STRLEN svlen;
		1460	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1461	#ifdef IOCPARM_LEN
		1462	STRLEN need = IOCPARM_LEN (request);
		1463	#else
		1464	STRLEN need = 256;
		1465	#endif
		1466
		1467	if (svlen < need)
		1468	svptr = SvGROW (arg, need);
		1469	}
		1470	else
		1471	svptr = (char *)SvIV (arg);
		1472
		1473	{
		1474	dREQ;
		1475
		1476	req->type = ix;
		1477	req->sv1 = newSVsv (fh);
		1478	req->int1 = fd;
		1479	req->int2 = (long)request;
		1480	req->sv2 = SvREFCNT_inc (arg);
		1481	req->ptr2 = svptr;
		1482
		1483	REQ_SEND;
		1484	}
		1485	}
		1486
		1487	void
1260	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1488	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1261	ALIAS:	1489	ALIAS:
1262	aio_readlink = EIO_READLINK	1490	aio_readlink = EIO_READLINK
1263	aio_realpath = EIO_REALPATH	1491	aio_realpath = EIO_REALPATH
1264	PPCODE:	1492	PPCODE:
1265	{	1493	{
…		…
1270		1498
1271	REQ_SEND;	1499	REQ_SEND;
1272	}	1500	}
1273		1501
1274	void	1502	void
1275	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1503	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1276	PPCODE:	1504	PPCODE:
1277	{	1505	{
1278	int ifd = s_fileno_croak (in_fh , 0);	1506	int ifd = s_fileno_croak (in_fh , 0);
1279	int ofd = s_fileno_croak (out_fh, 1);	1507	int ofd = s_fileno_croak (out_fh, 1);
1280	dREQ;	1508	dREQ;
1281		1509
1282	req->type = EIO_SENDFILE;	1510	req->type = EIO_SENDFILE;
1283	req->sv1 = newSVsv (out_fh);	1511	req->sv1 = newSVsv (out_fh);
1284	req->int1 = ofd;	1512	req->int1 = ofd;
…		…
1289		1517
1290	REQ_SEND;	1518	REQ_SEND;
1291	}	1519	}
1292		1520
1293	void	1521	void
1294	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1522	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1295	PPCODE:	1523	PPCODE:
1296	{	1524	{
1297	int fd = s_fileno_croak (fh, 0);	1525	int fd = s_fileno_croak (fh, 0);
1298	dREQ;	1526	dREQ;
1299		1527
1300	req->type = EIO_READAHEAD;	1528	req->type = EIO_READAHEAD;
1301	req->sv1 = newSVsv (fh);	1529	req->sv1 = newSVsv (fh);
1302	req->int1 = fd;	1530	req->int1 = fd;
…		…
1305		1533
1306	REQ_SEND;	1534	REQ_SEND;
1307	}	1535	}
1308		1536
1309	void	1537	void
1310	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1538	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1311	ALIAS:	1539	ALIAS:
1312	aio_stat = EIO_STAT	1540	aio_stat = EIO_STAT
1313	aio_lstat = EIO_LSTAT	1541	aio_lstat = EIO_LSTAT
1314	aio_statvfs = EIO_STATVFS	1542	aio_statvfs = EIO_STATVFS
1315	PPCODE:	1543	PPCODE:
…		…
1324	UV	1552	UV
1325	major (UV dev)	1553	major (UV dev)
1326	ALIAS:	1554	ALIAS:
1327	minor = 1	1555	minor = 1
1328	CODE:	1556	CODE:
1329	RETVAL = ix ? major (dev) : minor (dev);	1557	RETVAL = ix ? minor (dev) : major (dev);
1330	OUTPUT:	1558	OUTPUT:
1331	RETVAL	1559	RETVAL
1332		1560
1333	UV	1561	UV
1334	makedev (UV maj, UV min)	1562	makedev (UV maj, UV min)
…		…
1336	RETVAL = makedev (maj, min);	1564	RETVAL = makedev (maj, min);
1337	OUTPUT:	1565	OUTPUT:
1338	RETVAL	1566	RETVAL
1339		1567
1340	void	1568	void
1341	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1569	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1342	PPCODE:	1570	PPCODE:
1343	{	1571	{
1344	dREQ;	1572	dREQ;
1345		1573
1346	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1574	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1349		1577
1350	REQ_SEND;	1578	REQ_SEND;
1351	}	1579	}
1352		1580
1353	void	1581	void
1354	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1582	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1355	PPCODE:	1583	PPCODE:
1356	{	1584	{
1357	dREQ;	1585	dREQ;
1358		1586
1359	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1587	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1361		1589
1362	REQ_SEND;	1590	REQ_SEND;
1363	}	1591	}
1364		1592
1365	void	1593	void
1366	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1594	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1367	PPCODE:	1595	PPCODE:
1368	{	1596	{
1369	dREQ;	1597	dREQ;
1370		1598
1371	req->int2 = mode;	1599	req->int2 = mode;
…		…
1373		1601
1374	REQ_SEND;	1602	REQ_SEND;
1375	}	1603	}
1376		1604
1377	void	1605	void
1378	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1606	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1379	PPCODE:	1607	PPCODE:
1380	{	1608	{
1381	dREQ;	1609	dREQ;
1382		1610
1383	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1611	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1386		1614
1387	REQ_SEND;	1615	REQ_SEND;
1388	}	1616	}
1389		1617
1390	void	1618	void
1391	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1619	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1392	PPCODE:	1620	PPCODE:
1393	{	1621	{
1394	dREQ;	1622	dREQ;
1395		1623
1396	req->type = EIO_READDIR;	1624	req->type = EIO_READDIR;
…		…
1403		1631
1404	REQ_SEND;	1632	REQ_SEND;
1405	}	1633	}
1406		1634
1407	void	1635	void
1408	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1636	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1409	PPCODE:	1637	PPCODE:
1410	{	1638	{
1411	dREQ;	1639	dREQ;
1412		1640
1413	req->type = EIO_MKDIR;	1641	req->type = EIO_MKDIR;
…		…
1416		1644
1417	REQ_SEND;	1645	REQ_SEND;
1418	}	1646	}
1419		1647
1420	void	1648	void
1421	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1649	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1422	ALIAS:	1650	ALIAS:
1423	aio_unlink = EIO_UNLINK	1651	aio_unlink = EIO_UNLINK
1424	aio_rmdir = EIO_RMDIR	1652	aio_rmdir = EIO_RMDIR
1425	aio_readdir = EIO_READDIR	1653	aio_readdir = EIO_READDIR
1426	PPCODE:	1654	PPCODE:
…		…
1432		1660
1433	REQ_SEND;	1661	REQ_SEND;
1434	}	1662	}
1435		1663
1436	void	1664	void
1437	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1665	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1438	ALIAS:	1666	ALIAS:
1439	aio_link = EIO_LINK	1667	aio_link = EIO_LINK
1440	aio_symlink = EIO_SYMLINK	1668	aio_symlink = EIO_SYMLINK
1441	aio_rename = EIO_RENAME	1669	aio_rename = EIO_RENAME
1442	PPCODE:	1670	PPCODE:
1443	{	1671	{
		1672	eio_wd wd2 = 0;
1444	dREQ;	1673	dREQ;
1445	eio_wd wd2 = 0;
1446		1674
1447	req->type = ix;	1675	req->type = ix;
1448	req_set_path1 (req, oldpath);	1676	req_set_path1 (req, oldpath);
1449	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1677	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1450	req->int3 = (long)wd2;	1678	req->int3 = (long)wd2;
1451		1679
1452	REQ_SEND;	1680	REQ_SEND;
1453	}	1681	}
1454		1682
1455	void	1683	void
		1684	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1685	PPCODE:
		1686	{
		1687	eio_wd wd2 = 0;
		1688	dREQ;
		1689
		1690	req->type = EIO_RENAME;
		1691	req_set_path1 (req, oldpath);
		1692	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1693	req->int2 = flags;
		1694	req->int3 = (long)wd2;
		1695
		1696	REQ_SEND;
		1697	}
		1698
		1699	void
1456	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1700	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1457	PPCODE:	1701	PPCODE:
1458	{	1702	{
1459	dREQ;	1703	dREQ;
1460		1704
1461	req->type = EIO_MKNOD;	1705	req->type = EIO_MKNOD;
…		…
1465		1709
1466	REQ_SEND;	1710	REQ_SEND;
1467	}	1711	}
1468		1712
1469	void	1713	void
1470	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1714	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1471	ALIAS:	1715	ALIAS:
1472	aio_mtouch = EIO_MTOUCH	1716	aio_mtouch = EIO_MTOUCH
1473	aio_msync = EIO_MSYNC	1717	aio_msync = EIO_MSYNC
1474	PPCODE:	1718	PPCODE:
1475	{	1719	{
1476	STRLEN svlen;	1720	STRLEN svlen;
1477	char *svptr = SvPVbyte (data, svlen);	1721	char *svptr = SvPVbyte (data, svlen);
1478	UV len = SvUV (length);	1722	UV len = SvUV (length);
		1723
		1724	if (flags < 0)
		1725	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1479		1726
1480	if (offset < 0)	1727	if (offset < 0)
1481	offset += svlen;	1728	offset += svlen;
1482		1729
1483	if (offset < 0 || offset > svlen)	1730	if (offset < 0 || offset > svlen)
…		…
1498	REQ_SEND;	1745	REQ_SEND;
1499	}	1746	}
1500	}	1747	}
1501		1748
1502	void	1749	void
1503	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1750	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1504	PPCODE:	1751	PPCODE:
1505	{	1752	{
1506	STRLEN svlen;	1753	STRLEN svlen;
1507	char *svptr = SvPVbyte (data, svlen);	1754	char *svptr = SvPVbyte (data, svlen);
1508	UV len = SvUV (length);	1755	UV len = SvUV (length);
…		…
1527	REQ_SEND;	1774	REQ_SEND;
1528	}	1775	}
1529	}	1776	}
1530		1777
1531	void	1778	void
1532	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1779	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1533	PPCODE:	1780	PPCODE:
1534	{	1781	{
1535	dREQ;	1782	dREQ;
1536		1783
1537	req->type = EIO_MLOCKALL;	1784	req->type = EIO_MLOCKALL;
…		…
1539		1786
1540	REQ_SEND;	1787	REQ_SEND;
1541	}	1788	}
1542		1789
1543	void	1790	void
		1791	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1792	PPCODE:
		1793	{
		1794	int fd = s_fileno_croak (fh, 0);
		1795	dREQ;
		1796
		1797	req->type = EIO_CUSTOM;
		1798	req->sv1 = newSVsv (fh);
		1799	req->int1 = fd;
		1800
		1801	req->feed = fiemap;
		1802	#if HAVE_FIEMAP
		1803	/* keep our fingers crossed that the next two types are 64 bit */
		1804	req->offs = start;
		1805	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1806	req->int2 = flags;
		1807	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1808	#endif
		1809
		1810	REQ_SEND;
		1811	}
		1812
		1813	void
		1814	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1815	PPCODE:
		1816	{
		1817	char *svptr = 0;
		1818
		1819	sv_clear_foreign (data);
		1820
		1821	if (length) /* known length, directly read into scalar */
		1822	{
		1823	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1824	svptr = sv_grow (data, length);
		1825	else if (SvCUR (data) < length)
		1826	croak ("length outside of scalar, and cannot grow");
		1827	else
		1828	svptr = SvPVbyte_nolen (data);
		1829	}
		1830
		1831	{
		1832	dREQ;
		1833
		1834	req->type = EIO_SLURP;
		1835	req_set_path1 (req, pathname);
		1836	req->offs = offset;
		1837	req->size = length;
		1838	req->sv2 = SvREFCNT_inc (data);
		1839	req->ptr2 = svptr;
		1840
		1841	if (!SvREADONLY (data))
		1842	{
		1843	SvREADONLY_on (data);
		1844	req->flags |= FLAG_SV2_RO_OFF;
		1845	}
		1846
		1847	REQ_SEND;
		1848	}
		1849	}
		1850
		1851	void
1544	aio_busy (double delay, SV *callback=&PL_sv_undef)	1852	aio_busy (double delay, SV *callback = &PL_sv_undef)
1545	PPCODE:	1853	PPCODE:
1546	{	1854	{
1547	dREQ;	1855	dREQ;
1548		1856
1549	req->type = EIO_BUSY;	1857	req->type = EIO_BUSY;
…		…
1551		1859
1552	REQ_SEND;	1860	REQ_SEND;
1553	}	1861	}
1554		1862
1555	void	1863	void
1556	aio_group (SV *callback=&PL_sv_undef)	1864	aio_group (SV *callback = &PL_sv_undef)
1557	PPCODE:	1865	PPCODE:
1558	{	1866	{
1559	dREQ;	1867	dREQ;
1560		1868
1561	req->type = EIO_GROUP;	1869	req->type = EIO_GROUP;
1562		1870
		1871	PUTBACK;
1563	req_submit (req);	1872	req_submit (req);
		1873	SPAGAIN;
		1874
1564	XPUSHs (req_sv (req, aio_grp_stash));	1875	XPUSHs (req_sv (req, aio_grp_stash));
1565	}	1876	}
1566		1877
1567	void	1878	void
1568	aio_nop (SV *callback=&PL_sv_undef)	1879	aio_nop (SV *callback = &PL_sv_undef)
1569	ALIAS:	1880	ALIAS:
1570	aio_nop = EIO_NOP	1881	aio_nop = EIO_NOP
1571	aio_sync = EIO_SYNC	1882	aio_sync = EIO_SYNC
1572	PPCODE:	1883	PPCODE:
1573	{	1884	{
…		…
1577		1888
1578	REQ_SEND;	1889	REQ_SEND;
1579	}	1890	}
1580		1891
1581	int	1892	int
1582	aioreq_pri (int pri = 0)	1893	aioreq_pri (int pri = NO_INIT)
1583	CODE:	1894	CODE:
1584	RETVAL = next_pri;	1895	RETVAL = next_pri;
1585	if (items > 0)	1896	if (items > 0)
1586	{	1897	{
1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1898	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1988	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678	OUTPUT:	1989	OUTPUT:
1679	RETVAL	1990	RETVAL
1680		1991
1681	void	1992	void
1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1993	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1683	PPCODE:	1994	PPCODE:
1684	sv_unmagic (scalar, MMAP_MAGIC);	1995	sv_clear_foreign (scalar);
1685	{	1996	{
1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1997	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1998	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688	if (addr == (void *)-1)	1999	if (addr == (void *)-1)
1689	XSRETURN_NO;	2000	XSRETURN_NO;
1690		2001
1691	sv_force_normal (scalar);	2002	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1692
1693	/* we store the length in mg_obj, as namlen is I32 :/ */
1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695	->mg_obj = (SV *)length;
1696
1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
1698		2003
1699	if (!(prot & PROT_WRITE))	2004	if (!(prot & PROT_WRITE))
1700	SvREADONLY_on (scalar);	2005	SvREADONLY_on (scalar);
1701		2006
1702	if (SvLEN (scalar))
1703	Safefree (SvPVX (scalar));
1704
1705	SvPVX (scalar) = (char *)addr;
1706	SvCUR_set (scalar, length);
1707	SvLEN_set (scalar, 0);
1708	SvPOK_only (scalar);
1709
1710	XSRETURN_YES;	2007	XSRETURN_YES;
1711	}	2008	}
1712		2009
1713	void	2010	void
1714	munmap (SV *scalar)	2011	munmap (SV *scalar)
1715	CODE:	2012	CODE:
1716	sv_unmagic (scalar, MMAP_MAGIC);	2013	sv_clear_foreign (scalar);
1717		2014
1718	int	2015	int
1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2016	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1720	ALIAS:	2017	ALIAS:
1721	mprotect = 1	2018	mprotect = 1
1722	CODE:	2019	CODE:
1723	{	2020	{
1724	STRLEN svlen;	2021	STRLEN svlen;
1725	void *addr = SvPVbyte (scalar, svlen);	2022	void *addr = SvPVbyte (scalar, svlen);
1726	size_t len = SvUV (length);	2023	STRLEN len = SvUV (length);
1727		2024
1728	if (offset < 0)	2025	if (offset < 0)
1729	offset += svlen;	2026	offset += svlen;
1730		2027
1731	if (offset < 0 || offset > svlen)	2028	if (offset < 0 || offset > svlen)
…		…
1745	}	2042	}
1746	OUTPUT:	2043	OUTPUT:
1747	RETVAL	2044	RETVAL
1748		2045
1749	int	2046	int
1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2047	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1751	CODE:	2048	CODE:
1752	{	2049	{
1753	STRLEN svlen;	2050	STRLEN svlen;
1754	void *addr = SvPVbyte (scalar, svlen);	2051	void *addr = SvPVbyte (scalar, svlen);
1755	size_t len = SvUV (length);	2052	size_t len = SvUV (length);
1756		2053
1757	if (offset < 0)	2054	if (offset < 0)
1758	offset += svlen;	2055	offset += svlen;
1759		2056
…		…
1766	addr = (void *)(((intptr_t)addr) + offset);	2063	addr = (void *)(((intptr_t)addr) + offset);
1767	eio_page_align (&addr, &len);	2064	eio_page_align (&addr, &len);
1768	#if _POSIX_MEMLOCK_RANGE	2065	#if _POSIX_MEMLOCK_RANGE
1769	RETVAL = munlock (addr, len);	2066	RETVAL = munlock (addr, len);
1770	#else	2067	#else
1771	RETVAL = ((errno = ENOSYS), -1);	2068	RETVAL = EIO_ENOSYS ();
1772	#endif	2069	#endif
1773	}	2070	}
1774	OUTPUT:	2071	OUTPUT:
1775	RETVAL	2072	RETVAL
1776		2073
…		…
1778	munlockall ()	2075	munlockall ()
1779	CODE:	2076	CODE:
1780	#if _POSIX_MEMLOCK	2077	#if _POSIX_MEMLOCK
1781	munlockall ();	2078	munlockall ();
1782	#else	2079	#else
1783	RETVAL = -1;	2080	RETVAL = EIO_ENOSYS ();
1784	errno = ENOSYS;
1785	#endif	2081	#endif
1786	OUTPUT:	2082	OUTPUT:
1787	RETVAL	2083	RETVAL
		2084
		2085	int
		2086	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2087	CODE:
		2088	{
		2089	#if HAVE_LINUX_SPLICE
		2090	loff_t off_in_, off_out_;
		2091	RETVAL = splice (
		2092	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2093	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2094	length, flags
		2095	);
		2096	#else
		2097	RETVAL = EIO_ENOSYS ();
		2098	#endif
		2099	}
		2100	OUTPUT:
		2101	RETVAL
		2102
		2103	int
		2104	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2105	CODE:
		2106	#if HAVE_LINUX_SPLICE
		2107	RETVAL = tee (rfh, wfh, length, flags);
		2108	#else
		2109	RETVAL = EIO_ENOSYS ();
		2110	#endif
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int
		2115	pipesize (aio_rfd rfh, int new_size = -1)
		2116	PROTOTYPE: $;$
		2117	CODE:
		2118	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2119	if (new_size >= 0)
		2120	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2121	else
		2122	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2123	#else
		2124	errno = ENOSYS;
		2125	RETVAL = -1;
		2126	#endif
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	void
		2131	pipe2 (int flags = 0)
		2132	PROTOTYPE: ;$
		2133	PPCODE:
		2134	{
		2135	int fd[2];
		2136	int res;
		2137
		2138	if (flags)
		2139	#if HAVE_PIPE2
		2140	res = pipe2 (fd, flags);
		2141	#else
		2142	res = (errno = ENOSYS, -1);
		2143	#endif
		2144	else
		2145	res = pipe (fd);
		2146
		2147	if (!res)
		2148	{
		2149	EXTEND (SP, 2);
		2150	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2151	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2152	}
		2153	}
		2154
		2155	UV
		2156	get_fdlimit ()
		2157	CODE:
		2158	#if HAVE_RLIMITS
		2159	struct rlimit rl;
		2160	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2161	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2162	#endif
		2163	XSRETURN_UNDEF;
		2164	OUTPUT:
		2165	RETVAL
		2166
		2167	void
		2168	min_fdlimit (UV limit = 0x7fffffffU)
		2169	CODE:
		2170	{
		2171	#if HAVE_RLIMITS
		2172	struct rlimit rl;
		2173	rlim_t orig_rlim_max;
		2174	UV bit;
		2175
		2176	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2177	goto fail;
		2178
		2179	if (rl.rlim_cur == RLIM_INFINITY)
		2180	XSRETURN_YES;
		2181
		2182	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2183
		2184	if (rl.rlim_cur < limit)
		2185	{
		2186	rl.rlim_cur = limit;
		2187
		2188	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2189	rl.rlim_max = rl.rlim_cur;
		2190	}
		2191
		2192	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2193	XSRETURN_YES;
		2194
		2195	if (errno == EPERM)
		2196	{
		2197	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2198	/* our limit overflows a system-wide limit */
		2199	/* try an adaptive algorithm, but do not lower the hardlimit */
		2200	rl.rlim_max = 0;
		2201	for (bit = 0x40000000U; bit; bit >>= 1)
		2202	{
		2203	rl.rlim_max |= bit;
		2204	rl.rlim_cur = rl.rlim_max;
		2205
		2206	/* nevr decrease the hard limit */
		2207	if (rl.rlim_max < orig_rlim_max)
		2208	break;
		2209
		2210	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2211	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2212	}
		2213
		2214	/* now, raise the soft limit to the max permitted */
		2215	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2216	{
		2217	rl.rlim_cur = rl.rlim_max;
		2218	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2219	errno = EPERM;
		2220	}
		2221	}
		2222	#endif
		2223	fail:
		2224	XSRETURN_UNDEF;
		2225	}
1788		2226
1789	void _on_next_submit (SV *cb)	2227	void _on_next_submit (SV *cb)
1790	CODE:	2228	CODE:
1791	SvREFCNT_dec (on_next_submit);	2229	SvREFCNT_dec (on_next_submit);
1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2230	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1827	cancel (aio_req_ornot req)	2265	cancel (aio_req_ornot req)
1828	CODE:	2266	CODE:
1829	eio_cancel (req);	2267	eio_cancel (req);
1830		2268
1831	void	2269	void
1832	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2270	cb (aio_req_ornot req, SV *callback = NO_INIT)
1833	PPCODE:	2271	PPCODE:
1834	{	2272	{
1835	if (GIMME_V != G_VOID)	2273	if (GIMME_V != G_VOID)
1836	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2274	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837		2275
1838	if (items > 1)	2276	if (items > 1)
1839	{	2277	{
1840	SV *cb_cv =get_cb (callback);	2278	SV *cb_cv = get_cb (callback);
1841		2279
1842	SvREFCNT_dec (req->callback);	2280	SvREFCNT_dec (req->callback);
1843	req->callback = SvREFCNT_inc (cb_cv);	2281	req->callback = SvREFCNT_inc (cb_cv);
1844	}	2282	}
1845	}	2283	}
…		…
1902	limit (aio_req grp, int limit)	2340	limit (aio_req grp, int limit)
1903	CODE:	2341	CODE:
1904	eio_grp_limit (grp, limit);	2342	eio_grp_limit (grp, limit);
1905		2343
1906	void	2344	void
1907	feed (aio_req grp, SV *callback=&PL_sv_undef)	2345	feed (aio_req grp, SV *callback = &PL_sv_undef)
1908	CODE:	2346	CODE:
1909	{	2347	{
1910	SvREFCNT_dec (grp->sv2);	2348	SvREFCNT_dec (grp->sv2);
1911	grp->sv2 = newSVsv (callback);	2349	grp->sv2 = newSVsv (callback);
1912	grp->feed = aio_grp_feed;	2350	grp->feed = aio_grp_feed;

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