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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.147 by root, Mon Jun 15 05:34:49 2009 UTC vs.
Revision 1.189 by root, Mon Jul 18 01:27:03 2011 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"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		26
70	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	29	#undef readdir
73	#undef opendir	30	#undef opendir
74	#undef closedir	31	#undef closedir
75		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
		76
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	80	#if IVSIZE >= 8
		81	# define VAL64 IV
80	# define SvVAL64 SvIV	82	# define SvVAL64 SvIV
		83	# define newSVval64 newSViv
81	#else	84	#else
		85	# define VAL64 NV
82	# define SvVAL64 SvNV	86	# define SvVAL64 SvNV
		87	# define newSVval64 newSVnv
83	#endif	88	#endif
84		89
85	/*****************************************************************************/	90	/*****************************************************************************/
86		91
87	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	98	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	99	#define expect_true(expr) expect ((expr) != 0, 1)
95		100
96	/*****************************************************************************/	101	/*****************************************************************************/
97		102
98	static HV *stash;
99	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
		104	typedef int aio_rfd; /* read file desriptor */
		105	typedef int aio_wfd; /* write file descriptor */
100		106
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		108
104	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
105	SV *callback; \	110	SV *callback; \
106	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
107	STRLEN stroffset; \	112	STRLEN stroffset; \
108	SV *self;	113	SV *self;
109		114
110	#define EIO_NO_WRAPPERS 1	115	#define EIO_NO_WRAPPERS 1
111		116
		117	#include "libeio/config.h"
112	#include "libeio/eio.h"	118	#include "libeio/eio.h"
113		119
114	static int req_invoke (eio_req *req);	120	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	121	#define EIO_FINISH(req) req_invoke (req)
116	static void req_destroy (eio_req *grp);	122	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	123	#define EIO_DESTROY(req) req_destroy (req)
118		124
		125	#include "libeio/eio.c"
		126
		127	/* Linux/others */
		128	#ifndef O_ASYNC
		129	# define O_ASYNC 0
		130	#endif
		131	#ifndef O_DIRECT
		132	# define O_DIRECT 0
		133	#endif
		134	#ifndef O_NOATIME
		135	# define O_NOATIME 0
		136	#endif
		137
		138	/* POSIX */
		139	#ifndef O_CLOEXEC
		140	# define O_CLOEXEC 0
		141	#endif
		142	#ifndef O_NOFOLLOW
		143	# define O_NOFOLLOW 0
		144	#endif
		145	#ifndef O_NOCTTY
		146	# define O_NOCTTY 0
		147	#endif
		148	#ifndef O_NONBLOCK
		149	# define O_NONBLOCK 0
		150	#endif
		151	#ifndef O_EXEC
		152	# define O_EXEC 0
		153	#endif
		154	#ifndef O_SEARCH
		155	# define O_SEARCH 0
		156	#endif
		157	#ifndef O_DIRECTORY
		158	# define O_DIRECTORY 0
		159	#endif
		160	#ifndef O_DSYNC
		161	# define O_DSYNC 0
		162	#endif
		163	#ifndef O_RSYNC
		164	# define O_RSYNC 0
		165	#endif
		166	#ifndef O_SYNC
		167	# define O_SYNC 0
		168	#endif
		169	#ifndef O_TTY_INIT
		170	# define O_TTY_INIT 0
		171	#endif
		172
		173	#ifndef POSIX_FADV_NORMAL
		174	# define POSIX_FADV_NORMAL 0
		175	#endif
		176	#ifndef POSIX_FADV_SEQUENTIAL
		177	# define POSIX_FADV_SEQUENTIAL 0
		178	#endif
		179	#ifndef POSIX_FADV_RANDOM
		180	# define POSIX_FADV_RANDOM 0
		181	#endif
		182	#ifndef POSIX_FADV_NOREUSE
		183	# define POSIX_FADV_NOREUSE 0
		184	#endif
		185	#ifndef POSIX_FADV_WILLNEED
		186	# define POSIX_FADV_WILLNEED 0
		187	#endif
		188	#ifndef POSIX_FADV_DONTNEED
		189	# define POSIX_FADV_DONTNEED 0
		190	#endif
		191
		192	#if !HAVE_POSIX_FADVISE
		193	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		194	#endif
		195
		196	#ifndef POSIX_MADV_NORMAL
		197	# define POSIX_MADV_NORMAL 0
		198	#endif
		199	#ifndef POSIX_MADV_SEQUENTIAL
		200	# define POSIX_MADV_SEQUENTIAL 0
		201	#endif
		202	#ifndef POSIX_MADV_RANDOM
		203	# define POSIX_MADV_RANDOM 0
		204	#endif
		205	#ifndef POSIX_MADV_WILLNEED
		206	# define POSIX_MADV_WILLNEED 0
		207	#endif
		208	#ifndef POSIX_MADV_DONTNEED
		209	# define POSIX_MADV_DONTNEED 0
		210	#endif
		211
		212	#if !HAVE_POSIX_MADVISE
		213	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		214	#endif
		215
		216	#ifndef PROT_NONE
		217	# define PROT_NONE 0
		218	#endif
		219	#ifndef PROT_READ
		220	# define PROT_READ 0
		221	#endif
		222	#ifndef PROT_WRITE
		223	# define PROT_READ 0
		224	#endif
		225	#ifndef PROT_EXEC
		226	# define PROT_EXEC 0
		227	#endif
		228
		229	#ifndef ST_RDONLY
		230	# define ST_RDONLY 0
		231	#endif
		232	#ifndef ST_NOSUID
		233	# define ST_NOSUID 0
		234	#endif
		235	#ifndef ST_NODEV
		236	# define ST_NODEV 0
		237	#endif
		238	#ifndef ST_NOEXEC
		239	# define ST_NOEXEC 0
		240	#endif
		241	#ifndef ST_SYNCHRONOUS
		242	# define ST_SYNCHRONOUS 0
		243	#endif
		244	#ifndef ST_MANDLOCK
		245	# define ST_MANDLOCK 0
		246	#endif
		247	#ifndef ST_WRITE
		248	# define ST_WRITE 0
		249	#endif
		250	#ifndef ST_APPEND
		251	# define ST_APPEND 0
		252	#endif
		253	#ifndef ST_IMMUTABLE
		254	# define ST_IMMUTABLE 0
		255	#endif
		256	#ifndef ST_NOATIME
		257	# define ST_NOATIME 0
		258	#endif
		259	#ifndef ST_NODIRATIME
		260	# define ST_NODIRATIME 0
		261	#endif
		262	#ifndef ST_RELATIME
		263	# define ST_RELATIME 0
		264	#endif
		265
		266	#ifndef S_IFIFO
		267	# define S_IFIFO 0
		268	#endif
		269	#ifndef S_IFCHR
		270	# define S_IFCHR 0
		271	#endif
		272	#ifndef S_IFBLK
		273	# define S_IFBLK 0
		274	#endif
		275	#ifndef S_IFLNK
		276	# define S_IFLNK 0
		277	#endif
		278	#ifndef S_IFREG
		279	# define S_IFREG 0
		280	#endif
		281	#ifndef S_IFDIR
		282	# define S_IFDIR 0
		283	#endif
		284	#ifndef S_IFWHT
		285	# define S_IFWHT 0
		286	#endif
		287	#ifndef S_IFSOCK
		288	# define S_IFSOCK 0
		289	#endif
		290
		291	#ifndef MAP_ANONYMOUS
		292	# ifdef MAP_ANON
		293	# define MAP_ANONYMOUS MAP_ANON
		294	# else
		295	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		296	# endif
		297	#endif
		298	#ifndef MAP_HUGETLB
		299	# define MAP_HUGETLB 0
		300	#endif
		301	#ifndef MAP_LOCKED
		302	# define MAP_LOCKED 0
		303	#endif
		304	#ifndef MAP_NORESERVE
		305	# define MAP_NORESERVE 0
		306	#endif
		307	#ifndef MAP_POPULATE
		308	# define MAP_POPULATE 0
		309	#endif
		310	#ifndef MAP_NONBLOCK
		311	# define MAP_NONBLOCK 0
		312	#endif
		313
		314	#ifndef makedev
		315	# define makedev(maj,min) (((maj) << 8) | (min))
		316	#endif
		317	#ifndef major
		318	# define major(dev) ((dev) >> 8)
		319	#endif
		320	#ifndef minor
		321	# define minor(dev) ((dev) & 0xff)
		322	#endif
		323
		324	#ifndef PAGESIZE
		325	# define PAGESIZE sysconf (_SC_PAGESIZE)
		326	#endif
		327
119	enum {	328	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	329	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	330	};
122		331
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	332	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	333	typedef eio_req *aio_req_ornot;
127		334
128	static SV *on_next_submit;	335	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	336	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	337	static int max_outstanding;
131		338
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	339	static s_epipe respipe;
133		340
134	static void req_destroy (aio_req req);	341	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	342	static void req_cancel (aio_req req);
136		343
137	static void want_poll (void)	344	static void want_poll (void)
138	{	345	{
139	/* write a dummy byte to the pipe so fh becomes ready */	346	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	347	s_epipe_signal (&respipe);
141	}	348	}
142		349
143	static void done_poll (void)	350	static void done_poll (void)
144	{	351	{
145	/* read any signals sent by the worker threads */	352	/* read any signals sent by the worker threads */
146	char buf [4];	353	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	354	}
150		355
151	/* must be called at most once */	356	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	357	static SV *req_sv (aio_req req, HV *stash)
153	{	358	{
154	if (!req->self)	359	if (!req->self)
155	{	360	{
156	req->self = (SV *)newHV ();	361	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	363	}
159		364
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	366	}
162		367
163	static aio_req SvAIO_REQ (SV *sv)	368	static aio_req SvAIO_REQ (SV *sv)
164	{	369	{
165	MAGIC *mg;	370	MAGIC *mg;
166		371
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	372	if (!SvROK (sv)
		373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		374	&& SvSTASH (SvRV (sv)) != aio_req_stash
		375	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	376	croak ("object of class IO::AIO::REQ expected");
169		377
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		379
172	return mg ? (aio_req)mg->mg_ptr : 0;	380	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	381	}
…		…
179	dSP;	387	dSP;
180		388
181	ENTER;	389	ENTER;
182	SAVETMPS;	390	SAVETMPS;
183	PUSHMARK (SP);	391	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	392	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	393	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	394	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	395	SPAGAIN;
188	FREETMPS;	396	FREETMPS;
189	LEAVE;	397	LEAVE;
…		…
207	}	415	}
208	}	416	}
209		417
210	static int req_invoke (eio_req *req)	418	static int req_invoke (eio_req *req)
211	{	419	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	420	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	421	SvREADONLY_off (req->sv2);
216		422
217	if (!EIO_CANCELLED (req) && req->callback)	423	if (!EIO_CANCELLED (req) && req->callback)
218	{	424	{
		425	dSP;
		426	static SV *sv_result_cache; /* caches the result integer SV */
		427	SV *sv_result;
		428
219	ENTER;	429	ENTER;
220	SAVETMPS;	430	SAVETMPS;
221	PUSHMARK (SP);	431	PUSHMARK (SP);
222	EXTEND (SP, 1);	432	EXTEND (SP, 1);
		433
		434	/* do not recreate the result IV from scratch each time */
		435	if (expect_true (sv_result_cache))
		436	{
		437	sv_result = sv_result_cache; sv_result_cache = 0;
		438	SvIV_set (sv_result, req->result);
		439	SvIOK_only (sv_result);
		440	}
		441	else
		442	{
		443	sv_result = newSViv (req->result);
		444	SvREADONLY_on (sv_result);
		445	}
223		446
224	switch (req->type)	447	switch (req->type)
225	{	448	{
226	case EIO_READDIR:	449	case EIO_READDIR:
227	{	450	{
…		…
295	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
296	char sym [64];	519	char sym [64];
297	int symlen;	520	int symlen;
298		521
299	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
300	gv_init (gv, stash, sym, symlen, 0);	523	gv_init (gv, aio_stash, sym, symlen, 0);
301		524
302	symlen = snprintf (	525	symlen = snprintf (
303	sym,	526	sym,
304	sizeof (sym),	527	sizeof (sym),
305	"%s&=%d",	528	"%s&=%d",
…		…
313		536
314	PUSHs (fh);	537	PUSHs (fh);
315	}	538	}
316	break;	539	break;
317		540
		541	case EIO_STATVFS:
		542	case EIO_FSTATVFS:
		543	{
		544	SV *rv = &PL_sv_undef;
		545
		546	#ifndef _WIN32
		547	if (req->result >= 0)
		548	{
		549	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		550	HV *hv = newHV ();
		551
		552	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		553
		554	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		555	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		556	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		557	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		558	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		559	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		560	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		561	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		562	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		563	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		564	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		565	}
		566	#endif
		567
		568	PUSHs (rv);
		569	}
		570
		571	break;
		572
318	case EIO_GROUP:	573	case EIO_GROUP:
319	req->int1 = 2; /* mark group as finished */	574	req->int1 = 2; /* mark group as finished */
320		575
321	if (req->sv1)	576	if (req->sv1)
322	{	577	{
…		…
332	case EIO_NOP:	587	case EIO_NOP:
333	case EIO_BUSY:	588	case EIO_BUSY:
334	break;	589	break;
335		590
336	case EIO_READLINK:	591	case EIO_READLINK:
		592	case EIO_REALPATH:
337	if (req->result > 0)	593	if (req->result > 0)
338	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	594	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
339	break;	595	break;
340		596
341	case EIO_STAT:	597	case EIO_STAT:
342	case EIO_LSTAT:	598	case EIO_LSTAT:
343	case EIO_FSTAT:	599	case EIO_FSTAT:
344	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	600	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
345	PL_laststatval = req->result;	601	PL_laststatval = req->result;
		602	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
346	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	603	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347	PUSHs (sv_2mortal (newSViv (req->result)));	604	PUSHs (sv_result);
348	break;	605	break;
349		606
350	case EIO_READ:	607	case EIO_READ:
351	{	608	{
352	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	609	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353	*SvEND (req->sv2) = 0;	610	*SvEND (req->sv2) = 0;
354	SvPOK_only (req->sv2);	611	SvPOK_only (req->sv2);
355	SvSETMAGIC (req->sv2);	612	SvSETMAGIC (req->sv2);
356	PUSHs (sv_2mortal (newSViv (req->result)));	613	PUSHs (sv_result);
357	}	614	}
358	break;	615	break;
359		616
360	case EIO_DUP2:	617	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
361	if (req->result > 0)	618	if (req->result > 0)
362	req->result = 0;	619	SvIV_set (sv_result, 0);
363	/* FALLTHROUGH */	620	/* FALLTHROUGH */
364		621
365	default:	622	default:
366	PUSHs (sv_2mortal (newSViv (req->result)));	623	PUSHs (sv_result);
367	break;	624	break;
368	}	625	}
369		626
370	errno = req->errorno;	627	errno = req->errorno;
371		628
372	PUTBACK;	629	PUTBACK;
373	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	630	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374	SPAGAIN;	631	SPAGAIN;
		632
		633	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		634	SvREFCNT_dec (sv_result);
		635	else
		636	sv_result_cache = sv_result;
375		637
376	FREETMPS;	638	FREETMPS;
377	LEAVE;	639	LEAVE;
378		640
379	PUTBACK;	641	PUTBACK;
…		…
397	Safefree (req);	659	Safefree (req);
398	}	660	}
399		661
400	static void req_cancel_subs (aio_req grp)	662	static void req_cancel_subs (aio_req grp)
401	{	663	{
402	aio_req sub;
403
404	if (grp->type != EIO_GROUP)	664	if (grp->type != EIO_GROUP)
405	return;	665	return;
406		666
407	SvREFCNT_dec (grp->sv2);	667	SvREFCNT_dec (grp->sv2);
408	grp->sv2 = 0;	668	grp->sv2 = 0;
409		669
410	eio_grp_cancel (grp);	670	eio_grp_cancel (grp);
411	}	671	}
412		672
413	#ifdef USE_SOCKETS_AS_HANDLES
414	# define TO_SOCKET(x) (win32_get_osfhandle (x))
415	#else
416	# define TO_SOCKET(x) (x)
417	#endif
418
419	static void
420	create_respipe (void)	673	static void create_respipe (void)
421	{	674	{
422	int old_readfd = respipe [0];
423
424	if (respipe [1] >= 0)
425	respipe_close (TO_SOCKET (respipe [1]));
426
427	#ifdef _WIN32
428	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
429	#else
430	if (pipe (respipe))	675	if (s_epipe_renew (&respipe))
431	#endif
432	croak ("unable to initialize result pipe");	676	croak ("IO::AIO: unable to initialize result pipe");
433
434	if (old_readfd >= 0)
435	{
436	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
437	croak ("unable to initialize result pipe(2)");
438
439	respipe_close (respipe [0]);
440	respipe [0] = old_readfd;
441	}
442
443	#ifdef _WIN32
444	int arg = 1;
445	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
446	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
447	#else
448	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
449	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
450	#endif
451	croak ("unable to initialize result pipe(3)");
452
453	respipe_osf [0] = TO_SOCKET (respipe [0]);
454	respipe_osf [1] = TO_SOCKET (respipe [1]);
455	}	677	}
456		678
457	static void poll_wait (void)	679	static void poll_wait (void)
458	{	680	{
459	fd_set rfd;
460
461	while (eio_nreqs ())	681	while (eio_nreqs ())
462	{	682	{
463	int size;	683	int size;
464		684
465	X_LOCK (reslock);	685	X_LOCK (reslock);
…		…
469	if (size)	689	if (size)
470	return;	690	return;
471		691
472	etp_maybe_start_thread ();	692	etp_maybe_start_thread ();
473		693
474	FD_ZERO (&rfd);	694	s_epipe_wait (&respipe);
475	FD_SET (respipe [0], &rfd);
476
477	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478	}	695	}
479	}	696	}
480		697
481	static int poll_cb (void)	698	static int poll_cb (void)
482	{	699	{
…		…
492		709
493	poll_wait ();	710	poll_wait ();
494	}	711	}
495	}	712	}
496		713
		714	static void ecb_cold
497	static void atfork_child (void)	715	atfork_child (void)
498	{	716	{
499	create_respipe ();	717	create_respipe ();
500	}
501		718
502	static SV *	719	if (eio_init (want_poll, done_poll) < 0)
503	get_cb (SV *cb_sv)	720	croak ("IO::AIO: unable to initialise eio library");
504	{	721	}
505	HV *st;
506	GV *gvp;
507	CV *cv;
508		722
509	if (!SvOK (cb_sv))	723	/*****************************************************************************/
		724
		725	#if !_POSIX_MAPPED_FILES
		726	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		727	# define munmap(addr,length) (errno = ENOSYS, -1)
		728	#endif
		729
		730	#if !_POSIX_MEMORY_PROTECTION
		731	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		732	# define PROT_NONE 0
		733	# define PROT_WRITE 0
		734	# define MAP_PRIVATE 0
		735	# define MAP_SHARED 0
		736	# define MAP_FIXED 0
		737	#endif
		738
		739	#define MMAP_MAGIC PERL_MAGIC_ext
		740
		741	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		742	{
		743	int old_errno = errno;
		744	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		745	errno = old_errno;
		746
		747	mg->mg_obj = 0; /* just in case */
		748
		749	SvREADONLY_off (sv);
		750
		751	if (SvPVX (sv) != mg->mg_ptr)
		752	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		753
		754	SvCUR_set (sv, 0);
		755	SvPVX (sv) = 0;
		756	SvOK_off (sv);
		757
510	return 0;	758	return 0;
		759	}
511		760
512	cv = sv_2cv (cb_sv, &st, &gvp, 0);	761	static MGVTBL mmap_vtbl = {
		762	0, 0, 0, 0, mmap_free
		763	};
513		764
514	if (!cv)	765	/*****************************************************************************/
515	croak ("IO::AIO callback must be undef or a CODE reference");
516		766
517	return (SV *)cv;	767	static SV * get_cb (SV *cb_sv)
		768	{
		769	SvGETMAGIC (cb_sv);
		770	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
518	}	771	}
519		772
520	#define dREQ \	773	#define dREQ \
521	SV *cb_cv; \	774	SV *cb_cv; \
522	aio_req req; \	775	aio_req req; \
…		…
536	PUTBACK; \	789	PUTBACK; \
537	req_submit (req); \	790	req_submit (req); \
538	SPAGAIN; \	791	SPAGAIN; \
539	\	792	\
540	if (GIMME_V != G_VOID) \	793	if (GIMME_V != G_VOID) \
541	XPUSHs (req_sv (req, AIO_REQ_KLASS));	794	XPUSHs (req_sv (req, aio_req_stash));
542
543	static int
544	extract_fd (SV *fh, int wr)
545	{
546	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
547
548	if (fd < 0)
549	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
550
551	return fd;
552	}
553		795
554	MODULE = IO::AIO PACKAGE = IO::AIO	796	MODULE = IO::AIO PACKAGE = IO::AIO
555		797
556	PROTOTYPES: ENABLE	798	PROTOTYPES: ENABLE
557		799
…		…
559	{	801	{
560	static const struct {	802	static const struct {
561	const char *name;	803	const char *name;
562	IV iv;	804	IV iv;
563	} *civ, const_iv[] = {	805	} *civ, const_iv[] = {
564	# define const_iv(name, value) { # name, (IV) value },	806	# define const_niv(name, value) { # name, (IV) value },
		807	# define const_iv(name) { # name, (IV) name },
565	# define const_eio(name) { # name, (IV) EIO_ ## name },	808	# define const_eio(name) { # name, (IV) EIO_ ## name },
566	const_iv (EXDEV , EXDEV)	809	const_iv (EXDEV)
567	const_iv (ENOSYS , ENOSYS)	810	const_iv (ENOSYS)
568	const_iv (O_RDONLY, O_RDONLY)	811	const_iv (O_RDONLY)
569	const_iv (O_WRONLY, O_WRONLY)	812	const_iv (O_WRONLY)
		813	const_iv (O_RDWR)
570	const_iv (O_CREAT , O_CREAT)	814	const_iv (O_CREAT)
571	const_iv (O_TRUNC , O_TRUNC)	815	const_iv (O_TRUNC)
572	#ifndef _WIN32	816	const_iv (O_EXCL)
		817	const_iv (O_APPEND)
		818
		819	const_iv (O_ASYNC)
		820	const_iv (O_DIRECT)
		821	const_iv (O_NOATIME)
		822
		823	const_iv (O_CLOEXEC)
		824	const_iv (O_NOCTTY)
		825	const_iv (O_NOFOLLOW)
		826	const_iv (O_NONBLOCK)
		827	const_iv (O_EXEC)
		828	const_iv (O_SEARCH)
		829	const_iv (O_DIRECTORY)
		830	const_iv (O_DSYNC)
		831	const_iv (O_RSYNC)
		832	const_iv (O_SYNC)
		833	const_iv (O_TTY_INIT)
		834
573	const_iv (S_IFIFO , S_IFIFO)	835	const_iv (S_IFIFO)
574	#endif	836	const_iv (S_IFCHR)
		837	const_iv (S_IFBLK)
		838	const_iv (S_IFLNK)
		839	const_iv (S_IFREG)
		840	const_iv (S_IFDIR)
		841	const_iv (S_IFWHT)
		842	const_iv (S_IFSOCK)
		843	const_iv (S_IFMT)
		844
		845	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		846	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		847	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		848	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		849	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		850	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		851
		852	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		853	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		854	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		855	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		856	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		857
		858	const_iv (ST_RDONLY)
		859	const_iv (ST_NOSUID)
		860	const_iv (ST_NODEV)
		861	const_iv (ST_NOEXEC)
		862	const_iv (ST_SYNCHRONOUS)
		863	const_iv (ST_MANDLOCK)
		864	const_iv (ST_WRITE)
		865	const_iv (ST_APPEND)
		866	const_iv (ST_IMMUTABLE)
		867	const_iv (ST_NOATIME)
		868	const_iv (ST_NODIRATIME)
		869	const_iv (ST_RELATIME)
		870
		871	const_iv (PROT_NONE)
		872	const_iv (PROT_EXEC)
		873	const_iv (PROT_READ)
		874	const_iv (PROT_WRITE)
		875
		876	/*const_iv (MAP_FIXED)*/
		877	const_iv (MAP_PRIVATE)
		878	const_iv (MAP_SHARED)
		879	const_iv (MAP_ANONYMOUS)
		880
		881	/* linuxish */
		882	const_iv (MAP_HUGETLB)
		883	const_iv (MAP_LOCKED)
		884	const_iv (MAP_NORESERVE)
		885	const_iv (MAP_POPULATE)
		886	const_iv (MAP_NONBLOCK)
		887
		888	const_eio (MCL_FUTURE)
		889	const_eio (MCL_CURRENT)
		890
		891	const_eio (MS_ASYNC)
		892	const_eio (MS_INVALIDATE)
		893	const_eio (MS_SYNC)
		894
		895	const_eio (MT_MODIFY)
		896
575	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	897	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
576	const_eio (SYNC_FILE_RANGE_WRITE)	898	const_eio (SYNC_FILE_RANGE_WRITE)
577	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	899	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		900
		901	const_eio (FALLOC_FL_KEEP_SIZE)
578		902
579	const_eio (READDIR_DENTS)	903	const_eio (READDIR_DENTS)
580	const_eio (READDIR_DIRS_FIRST)	904	const_eio (READDIR_DIRS_FIRST)
581	const_eio (READDIR_STAT_ORDER)	905	const_eio (READDIR_STAT_ORDER)
582	const_eio (READDIR_FOUND_UNKNOWN)	906	const_eio (READDIR_FOUND_UNKNOWN)
…		…
590	const_eio (DT_LNK)	914	const_eio (DT_LNK)
591	const_eio (DT_SOCK)	915	const_eio (DT_SOCK)
592	const_eio (DT_WHT)	916	const_eio (DT_WHT)
593	};	917	};
594		918
595	stash = gv_stashpv ("IO::AIO", 1);	919	aio_stash = gv_stashpv ("IO::AIO" , 1);
		920	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		921	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
596		922
597	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	923	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
598	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	924	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
599		925
600	create_respipe ();	926	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
601		927
602	if (eio_init (want_poll, done_poll) < 0)
603	croak ("IO::AIO: unable to initialise eio library");
604
605	/* atfork child called in fifo order, so before eio's handler */
606	X_THREAD_ATFORK (0, 0, atfork_child);	928	X_THREAD_ATFORK (0, 0, atfork_child);
		929	atfork_child (); /* calls create_respipe and eio_init */
607	}	930	}
608		931
609	void	932	void
610	max_poll_reqs (int nreqs)	933	max_poll_reqs (unsigned int nreqs)
611	PROTOTYPE: $	934	PROTOTYPE: $
612	CODE:	935	CODE:
613	eio_set_max_poll_reqs (nreqs);	936	eio_set_max_poll_reqs (nreqs);
614		937
615	void	938	void
…		…
617	PROTOTYPE: $	940	PROTOTYPE: $
618	CODE:	941	CODE:
619	eio_set_max_poll_time (nseconds);	942	eio_set_max_poll_time (nseconds);
620		943
621	void	944	void
622	min_parallel (int nthreads)	945	min_parallel (unsigned int nthreads)
623	PROTOTYPE: $	946	PROTOTYPE: $
624	CODE:	947	CODE:
625	eio_set_min_parallel (nthreads);	948	eio_set_min_parallel (nthreads);
626		949
627	void	950	void
628	max_parallel (int nthreads)	951	max_parallel (unsigned int nthreads)
629	PROTOTYPE: $	952	PROTOTYPE: $
630	CODE:	953	CODE:
631	eio_set_max_parallel (nthreads);	954	eio_set_max_parallel (nthreads);
632		955
633	void	956	void
634	max_idle (int nthreads)	957	max_idle (unsigned int nthreads)
635	PROTOTYPE: $	958	PROTOTYPE: $
636	CODE:	959	CODE:
637	eio_set_max_idle (nthreads);	960	eio_set_max_idle (nthreads);
638		961
639	void	962	void
		963	idle_timeout (unsigned int seconds)
		964	PROTOTYPE: $
		965	CODE:
		966	eio_set_idle_timeout (seconds);
		967
		968	void
640	max_outstanding (int maxreqs)	969	max_outstanding (unsigned int maxreqs)
641	PROTOTYPE: $	970	PROTOTYPE: $
642	CODE:	971	CODE:
643	max_outstanding = maxreqs;	972	max_outstanding = maxreqs;
644		973
645	void	974	void
646	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
647	PROTOTYPE: $$$;$
648	PPCODE:	976	PPCODE:
649	{	977	{
650	dREQ;	978	dREQ;
651		979
652	req->type = EIO_OPEN;	980	req->type = EIO_OPEN;
…		…
658	REQ_SEND;	986	REQ_SEND;
659	}	987	}
660		988
661	void	989	void
662	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $;$
664	ALIAS:	991	ALIAS:
665	aio_fsync = EIO_FSYNC	992	aio_fsync = EIO_FSYNC
666	aio_fdatasync = EIO_FDATASYNC	993	aio_fdatasync = EIO_FDATASYNC
667	PPCODE:	994	PPCODE:
668	{	995	{
669	int fd = extract_fd (fh, 0);	996	int fd = s_fileno_croak (fh, 0);
670	dREQ;	997	dREQ;
671		998
672	req->type = ix;	999	req->type = ix;
673	req->sv1 = newSVsv (fh);	1000	req->sv1 = newSVsv (fh);
674	req->int1 = fd;	1001	req->int1 = fd;
675		1002
676	REQ_SEND (req);	1003	REQ_SEND (req);
677	}	1004	}
678		1005
679	void	1006	void
680	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$$;$
682	PPCODE:	1008	PPCODE:
683	{	1009	{
684	int fd = extract_fd (fh, 0);	1010	int fd = s_fileno_croak (fh, 0);
685	dREQ;	1011	dREQ;
686		1012
687	req->type = EIO_SYNC_FILE_RANGE;	1013	req->type = EIO_SYNC_FILE_RANGE;
688	req->sv1 = newSVsv (fh);	1014	req->sv1 = newSVsv (fh);
689	req->int1 = fd;	1015	req->int1 = fd;
690	req->offs = SvVAL64 (offset);	1016	req->offs = offset;
691	req->size = SvVAL64 (nbytes);	1017	req->size = nbytes;
692	req->int2 = flags;	1018	req->int2 = flags;
693		1019
694	REQ_SEND (req);	1020	REQ_SEND (req);
695	}	1021	}
696		1022
697	void	1023	void
		1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1025	PPCODE:
		1026	{
		1027	int fd = s_fileno_croak (fh, 0);
		1028	dREQ;
		1029
		1030	req->type = EIO_FALLOCATE;
		1031	req->sv1 = newSVsv (fh);
		1032	req->int1 = fd;
		1033	req->int2 = mode;
		1034	req->offs = offset;
		1035	req->size = len;
		1036
		1037	REQ_SEND (req);
		1038	}
		1039
		1040	void
698	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)
699	PROTOTYPE: $;$
700	PPCODE:	1042	PPCODE:
701	{	1043	{
702	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1044	static int close_fd = -1; /* dummy fd to close fds via dup2 */
703	int fd = extract_fd (fh, 0);	1045	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1046	dREQ;
705		1047
706	if (close_pipe < 0)	1048	if (expect_false (close_fd < 0))
707	{	1049	{
708	int pipefd [2];	1050	int pipefd [2];
709		1051
		1052	if (
		1053	#ifdef _WIN32
		1054	_pipe (pipefd, 1, _O_BINARY) < 0
		1055	#else
710	if (pipe (pipefd) < 0	1056	pipe (pipefd) < 0
711	|| close (pipefd [1]) < 0
712	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1057	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1058	#endif
		1059	|| close (pipefd [1]) < 0
		1060	)
713	abort (); /*D*/	1061	abort (); /*D*/
714		1062
715	close_pipe = pipefd [0];	1063	close_fd = pipefd [0];
716	}	1064	}
717		1065
718	req->type = EIO_DUP2;	1066	req->type = EIO_DUP2;
719	req->int1 = close_pipe;	1067	req->int1 = close_fd;
720	req->sv2 = newSVsv (fh);	1068	req->sv2 = newSVsv (fh);
721	req->int2 = fd;	1069	req->int2 = fd;
722		1070
723	REQ_SEND (req);	1071	REQ_SEND (req);
724	}	1072	}
…		…
726	void	1074	void
727	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1075	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
728	ALIAS:	1076	ALIAS:
729	aio_read = EIO_READ	1077	aio_read = EIO_READ
730	aio_write = EIO_WRITE	1078	aio_write = EIO_WRITE
731	PROTOTYPE: $$$$$;$
732	PPCODE:	1079	PPCODE:
733	{	1080	{
734	STRLEN svlen;	1081	STRLEN svlen;
735	int fd = extract_fd (fh, ix == EIO_WRITE);	1082	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736	char *svptr = SvPVbyte (data, svlen);	1083	char *svptr = SvPVbyte (data, svlen);
737	UV len = SvUV (length);	1084	UV len = SvUV (length);
738		1085
739	if (dataoffset < 0)	1086	if (dataoffset < 0)
740	dataoffset += svlen;	1087	dataoffset += svlen;
…		…
777	}	1124	}
778	}	1125	}
779		1126
780	void	1127	void
781	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1128	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
782	PROTOTYPE: $$;$	1129	ALIAS:
		1130	aio_readlink = EIO_READLINK
		1131	aio_realpath = EIO_REALPATH
783	PPCODE:	1132	PPCODE:
784	{	1133	{
785	SV *data;
786	dREQ;	1134	dREQ;
787		1135
788	req->type = EIO_READLINK;	1136	req->type = ix;
789	req->sv1 = newSVsv (path);	1137	req->sv1 = newSVsv (path);
790	req->ptr1 = SvPVbyte_nolen (req->sv1);	1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
791		1139
792	REQ_SEND;	1140	REQ_SEND;
793	}	1141	}
794		1142
795	void	1143	void
796	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
797	PROTOTYPE: $$$$;$
798	PPCODE:	1145	PPCODE:
799	{	1146	{
800	int ifd = extract_fd (in_fh , 0);	1147	int ifd = s_fileno_croak (in_fh , 0);
801	int ofd = extract_fd (out_fh, 0);	1148	int ofd = s_fileno_croak (out_fh, 1);
802	dREQ;	1149	dREQ;
803		1150
804	req->type = EIO_SENDFILE;	1151	req->type = EIO_SENDFILE;
805	req->sv1 = newSVsv (out_fh);	1152	req->sv1 = newSVsv (out_fh);
806	req->int1 = ofd;	1153	req->int1 = ofd;
807	req->sv2 = newSVsv (in_fh);	1154	req->sv2 = newSVsv (in_fh);
808	req->int2 = ifd;	1155	req->int2 = ifd;
809	req->offs = SvVAL64 (in_offset);	1156	req->offs = in_offset;
810	req->size = length;	1157	req->size = length;
811		1158
812	REQ_SEND;	1159	REQ_SEND;
813	}	1160	}
814		1161
815	void	1162	void
816	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1164	PPCODE:
819	{	1165	{
820	int fd = extract_fd (fh, 0);	1166	int fd = s_fileno_croak (fh, 0);
821	dREQ;	1167	dREQ;
822		1168
823	req->type = EIO_READAHEAD;	1169	req->type = EIO_READAHEAD;
824	req->sv1 = newSVsv (fh);	1170	req->sv1 = newSVsv (fh);
825	req->int1 = fd;	1171	req->int1 = fd;
826	req->offs = SvVAL64 (offset);	1172	req->offs = offset;
827	req->size = length;	1173	req->size = length;
828		1174
829	REQ_SEND;	1175	REQ_SEND;
830	}	1176	}
831		1177
832	void	1178	void
833	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
834	ALIAS:	1180	ALIAS:
835	aio_stat = EIO_STAT	1181	aio_stat = EIO_STAT
836	aio_lstat = EIO_LSTAT	1182	aio_lstat = EIO_LSTAT
		1183	aio_statvfs = EIO_STATVFS
837	PPCODE:	1184	PPCODE:
838	{	1185	{
839	dREQ;	1186	dREQ;
840		1187
841	req->sv1 = newSVsv (fh_or_path);	1188	req->sv1 = newSVsv (fh_or_path);
…		…
845	req->type = ix;	1192	req->type = ix;
846	req->ptr1 = SvPVbyte_nolen (req->sv1);	1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
847	}	1194	}
848	else	1195	else
849	{	1196	{
850	req->type = EIO_FSTAT;	1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
851	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852	}	1199	}
853		1200
854	REQ_SEND;	1201	REQ_SEND;
855	}	1202	}
		1203
		1204	UV
		1205	major (UV dev)
		1206	ALIAS:
		1207	minor = 1
		1208	CODE:
		1209	RETVAL = ix ? major (dev) : minor (dev);
		1210	OUTPUT:
		1211	RETVAL
		1212
		1213	UV
		1214	makedev (UV maj, UV min)
		1215	CODE:
		1216	RETVAL = makedev (maj, min);
		1217	OUTPUT:
		1218	RETVAL
856		1219
857	void	1220	void
858	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
859	PPCODE:	1222	PPCODE:
860	{	1223	{
…		…
1018		1381
1019	REQ_SEND;	1382	REQ_SEND;
1020	}	1383	}
1021		1384
1022	void	1385	void
		1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1387	ALIAS:
		1388	aio_mtouch = EIO_MTOUCH
		1389	aio_msync = EIO_MSYNC
		1390	PPCODE:
		1391	{
		1392	STRLEN svlen;
		1393	char *svptr = SvPVbyte (data, svlen);
		1394	UV len = SvUV (length);
		1395
		1396	if (offset < 0)
		1397	offset += svlen;
		1398
		1399	if (offset < 0 || offset > svlen)
		1400	croak ("offset outside of scalar");
		1401
		1402	if (!SvOK (length) || len + offset > svlen)
		1403	len = svlen - offset;
		1404
		1405	{
		1406	dREQ;
		1407
		1408	req->type = ix;
		1409	req->sv2 = SvREFCNT_inc (data);
		1410	req->ptr2 = (char *)svptr + offset;
		1411	req->size = len;
		1412	req->int1 = flags;
		1413
		1414	REQ_SEND;
		1415	}
		1416	}
		1417
		1418	void
		1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1420	PPCODE:
		1421	{
		1422	STRLEN svlen;
		1423	char *svptr = SvPVbyte (data, svlen);
		1424	UV len = SvUV (length);
		1425
		1426	if (offset < 0)
		1427	offset += svlen;
		1428
		1429	if (offset < 0 || offset > svlen)
		1430	croak ("offset outside of scalar");
		1431
		1432	if (!SvOK (length) || len + offset > svlen)
		1433	len = svlen - offset;
		1434
		1435	{
		1436	dREQ;
		1437
		1438	req->type = EIO_MLOCK;
		1439	req->sv2 = SvREFCNT_inc (data);
		1440	req->ptr2 = (char *)svptr + offset;
		1441	req->size = len;
		1442
		1443	REQ_SEND;
		1444	}
		1445	}
		1446
		1447	void
		1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MLOCKALL;
		1454	req->int1 = flags;
		1455
		1456	REQ_SEND;
		1457	}
		1458
		1459	void
1023	aio_busy (double delay, SV *callback=&PL_sv_undef)	1460	aio_busy (double delay, SV *callback=&PL_sv_undef)
1024	PPCODE:	1461	PPCODE:
1025	{	1462	{
1026	dREQ;	1463	dREQ;
1027		1464
…		…
1031	REQ_SEND;	1468	REQ_SEND;
1032	}	1469	}
1033		1470
1034	void	1471	void
1035	aio_group (SV *callback=&PL_sv_undef)	1472	aio_group (SV *callback=&PL_sv_undef)
1036	PROTOTYPE: ;$
1037	PPCODE:	1473	PPCODE:
1038	{	1474	{
1039	dREQ;	1475	dREQ;
1040		1476
1041	req->type = EIO_GROUP;	1477	req->type = EIO_GROUP;
1042		1478
1043	req_submit (req);	1479	req_submit (req);
1044	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1480	XPUSHs (req_sv (req, aio_grp_stash));
1045	}	1481	}
1046		1482
1047	void	1483	void
1048	aio_nop (SV *callback=&PL_sv_undef)	1484	aio_nop (SV *callback=&PL_sv_undef)
1049	ALIAS:	1485	ALIAS:
…		…
1058	REQ_SEND;	1494	REQ_SEND;
1059	}	1495	}
1060		1496
1061	int	1497	int
1062	aioreq_pri (int pri = 0)	1498	aioreq_pri (int pri = 0)
1063	PROTOTYPE: ;$
1064	CODE:	1499	CODE:
1065	RETVAL = next_pri;	1500	RETVAL = next_pri;
1066	if (items > 0)	1501	if (items > 0)
1067	{	1502	{
1068	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1080	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1515	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081	next_pri = nice;	1516	next_pri = nice;
1082		1517
1083	void	1518	void
1084	flush ()	1519	flush ()
1085	PROTOTYPE:
1086	CODE:	1520	CODE:
1087	while (eio_nreqs ())	1521	while (eio_nreqs ())
1088	{	1522	{
1089	poll_wait ();	1523	poll_wait ();
1090	poll_cb ();	1524	poll_cb ();
1091	}	1525	}
1092		1526
1093	int	1527	int
1094	poll()	1528	poll ()
1095	PROTOTYPE:
1096	CODE:	1529	CODE:
1097	poll_wait ();	1530	poll_wait ();
1098	RETVAL = poll_cb ();	1531	RETVAL = poll_cb ();
1099	OUTPUT:	1532	OUTPUT:
1100	RETVAL	1533	RETVAL
1101		1534
1102	int	1535	int
1103	poll_fileno()	1536	poll_fileno ()
1104	PROTOTYPE:
1105	CODE:	1537	CODE:
1106	RETVAL = respipe [0];	1538	RETVAL = s_epipe_fd (&respipe);
1107	OUTPUT:	1539	OUTPUT:
1108	RETVAL	1540	RETVAL
1109		1541
1110	int	1542	int
1111	poll_cb(...)	1543	poll_cb (...)
1112	PROTOTYPE:	1544	PROTOTYPE:
1113	CODE:	1545	CODE:
1114	RETVAL = poll_cb ();	1546	RETVAL = poll_cb ();
1115	OUTPUT:	1547	OUTPUT:
1116	RETVAL	1548	RETVAL
1117		1549
1118	void	1550	void
1119	poll_wait()	1551	poll_wait ()
1120	PROTOTYPE:
1121	CODE:	1552	CODE:
1122	poll_wait ();	1553	poll_wait ();
1123		1554
1124	int	1555	int
1125	nreqs()	1556	nreqs ()
1126	PROTOTYPE:
1127	CODE:	1557	CODE:
1128	RETVAL = eio_nreqs ();	1558	RETVAL = eio_nreqs ();
1129	OUTPUT:	1559	OUTPUT:
1130	RETVAL	1560	RETVAL
1131		1561
1132	int	1562	int
1133	nready()	1563	nready ()
1134	PROTOTYPE:
1135	CODE:	1564	CODE:
1136	RETVAL = eio_nready ();	1565	RETVAL = eio_nready ();
1137	OUTPUT:	1566	OUTPUT:
1138	RETVAL	1567	RETVAL
1139		1568
1140	int	1569	int
1141	npending()	1570	npending ()
1142	PROTOTYPE:
1143	CODE:	1571	CODE:
1144	RETVAL = eio_npending ();	1572	RETVAL = eio_npending ();
1145	OUTPUT:	1573	OUTPUT:
1146	RETVAL	1574	RETVAL
1147		1575
1148	int	1576	int
1149	nthreads()	1577	nthreads ()
1150	PROTOTYPE:
1151	CODE:	1578	CODE:
1152	RETVAL = eio_nthreads ();	1579	RETVAL = eio_nthreads ();
1153	OUTPUT:	1580	OUTPUT:
1154	RETVAL	1581	RETVAL
1155		1582
		1583	int
		1584	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1585	CODE:
		1586	RETVAL = posix_fadvise (fh, offset, length, advice);
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	ssize_t
		1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1592	CODE:
		1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1594	OUTPUT:
		1595	RETVAL
		1596
		1597	void
		1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1599	PPCODE:
		1600	sv_unmagic (scalar, MMAP_MAGIC);
		1601	{
		1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1604	if (addr == (void *)-1)
		1605	XSRETURN_NO;
		1606
		1607	sv_force_normal (scalar);
		1608
		1609	/* we store the length in mg_obj, as namlen is I32 :/ */
		1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1611	->mg_obj = (SV *)length;
		1612
		1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1614
		1615	if (!(prot & PROT_WRITE))
		1616	SvREADONLY_on (scalar);
		1617
		1618	if (SvLEN (scalar))
		1619	Safefree (SvPVX (scalar));
		1620
		1621	SvPVX (scalar) = (char *)addr;
		1622	SvCUR_set (scalar, length);
		1623	SvLEN_set (scalar, 0);
		1624	SvPOK_only (scalar);
		1625
		1626	XSRETURN_YES;
		1627	}
		1628
		1629	void
		1630	munmap (SV *scalar)
		1631	CODE:
		1632	sv_unmagic (scalar, MMAP_MAGIC);
		1633
		1634	int
		1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1636	ALIAS:
		1637	mprotect = 1
		1638	CODE:
		1639	{
		1640	STRLEN svlen;
		1641	void *addr = SvPVbyte (scalar, svlen);
		1642	size_t len = SvUV (length);
		1643
		1644	if (offset < 0)
		1645	offset += svlen;
		1646
		1647	if (offset < 0 || offset > svlen)
		1648	croak ("offset outside of scalar");
		1649
		1650	if (!SvOK (length) || len + offset > svlen)
		1651	len = svlen - offset;
		1652
		1653	addr = (void *)(((intptr_t)addr) + offset);
		1654	eio_page_align (&addr, &len);
		1655
		1656	switch (ix)
		1657	{
		1658	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1659	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1660	}
		1661	}
		1662	OUTPUT:
		1663	RETVAL
		1664
		1665	int
		1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	STRLEN svlen;
		1670	void *addr = SvPVbyte (scalar, svlen);
		1671	size_t len = SvUV (length);
		1672
		1673	if (offset < 0)
		1674	offset += svlen;
		1675
		1676	if (offset < 0 || offset > svlen)
		1677	croak ("offset outside of scalar");
		1678
		1679	if (!SvOK (length) || len + offset > svlen)
		1680	len = svlen - offset;
		1681
		1682	addr = (void *)(((intptr_t)addr) + offset);
		1683	eio_page_align (&addr, &len);
		1684	#if _POSIX_MEMLOCK_RANGE
		1685	RETVAL = munlock (addr, len);
		1686	#else
		1687	RETVAL = ((errno = ENOSYS), -1);
		1688	#endif
		1689	}
		1690	OUTPUT:
		1691	RETVAL
		1692
		1693	int
		1694	munlockall ()
		1695	CODE:
		1696	#if _POSIX_MEMLOCK
		1697	munlockall ();
		1698	#else
		1699	RETVAL = -1;
		1700	errno = ENOSYS;
		1701	#endif
		1702	OUTPUT:
		1703	RETVAL
		1704
1156	void _on_next_submit (SV *cb)	1705	void _on_next_submit (SV *cb)
1157	CODE:	1706	CODE:
1158	SvREFCNT_dec (on_next_submit);	1707	SvREFCNT_dec (on_next_submit);
1159	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160		1709
…		…
1174	if (GIMME_V != G_VOID)	1723	if (GIMME_V != G_VOID)
1175	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176		1725
1177	if (items > 1)	1726	if (items > 1)
1178	{	1727	{
1179	SV *cb_cv = get_cb (callback);	1728	SV *cb_cv =get_cb (callback);
1180		1729
1181	SvREFCNT_dec (req->callback);	1730	SvREFCNT_dec (req->callback);
1182	req->callback = SvREFCNT_inc (cb_cv);	1731	req->callback = SvREFCNT_inc (cb_cv);
1183	}	1732	}
1184	}	1733	}

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