[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.243 by root, Mon Jul 18 07:48:01 2016 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 2018 UTC

…		…
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		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
		22
		23	#if HAVE_SYS_SYSMACROS_H
		24	# include <sys/sysmacros.h>
		25	#endif
19		26
20	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES	27	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	28	# include <sys/mman.h>
22	#endif	29	#endif
23		30
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	111	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	112	#define expect_true(expr) expect ((expr) != 0, 1)
106		113
107	/*****************************************************************************/	114	/*****************************************************************************/
108		115
		116	#include "config.h"
		117
		118	#if HAVE_ST_XTIMENSEC
		119	# define ATIMENSEC PL_statcache.st_atimensec
		120	# define MTIMENSEC PL_statcache.st_mtimensec
		121	# define CTIMENSEC PL_statcache.st_ctimensec
		122	#elif HAVE_ST_XTIMESPEC
		123	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		124	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		125	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		126	#else
		127	# define ATIMENSEC 0
		128	# define MTIMENSEC 0
		129	# define CTIMENSEC 0
		130	#endif
		131
		132	#include "schmorp.h"
		133
		134	#if HAVE_EVENTFD
		135	# include <sys/eventfd.h>
		136	#endif
		137
		138	#if HAVE_TIMERFD
		139	# include <sys/timerfd.h>
		140	#endif
		141
		142	#if HAVE_RLIMITS
		143	#include <sys/time.h>
		144	#include <sys/resource.h>
		145	#endif
		146
109	typedef SV SV8; /* byte-sv, used for argument-checking */	147	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	148	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	149	typedef int aio_wfd; /* write file descriptor */
112		150
113	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	151	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
119	STRLEN stroffset; \	157	STRLEN stroffset; \
120	SV *self;	158	SV *self;
121		159
122	#define EIO_NO_WRAPPERS 1	160	#define EIO_NO_WRAPPERS 1
123		161
124	#include "libeio/config.h"
125	#include "libeio/eio.h"	162	#include "libeio/eio.h"
126		163
127	static int req_invoke (eio_req *req);	164	static int req_invoke (eio_req *req);
128	#define EIO_FINISH(req) req_invoke (req)	165	#define EIO_FINISH(req) req_invoke (req)
129	static void req_destroy (eio_req *grp);	166	static void req_destroy (eio_req *grp);
…		…
145	# else	182	# else
146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	183	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147	# endif	184	# endif
148	#endif	185	#endif
149		186
		187	#ifndef makedev
		188	# define makedev(maj,min) (((maj) << 8) \| (min))
		189	#endif
		190	#ifndef major
		191	# define major(dev) ((dev) >> 8)
		192	#endif
		193	#ifndef minor
		194	# define minor(dev) ((dev) & 0xff)
		195	#endif
		196
		197	#if PAGESIZE <= 0
		198	# define PAGESIZE sysconf (_SC_PAGESIZE)
		199	#endif
		200
		201	/*****************************************************************************/
		202
		203	#if !_POSIX_MAPPED_FILES
		204	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		205	# define munmap(addr,length) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !_POSIX_MEMORY_PROTECTION
		209	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		210	#endif
		211
		212	#if !MREMAP_MAYMOVE
		213	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		214	#endif
		215
		216	#define FOREIGN_MAGIC PERL_MAGIC_ext
		217
		218	static int ecb_cold
		219	mmap_free (pTHX_ SV sv, MAGIC mg)
		220	{
		221	int old_errno = errno;
		222	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		223	errno = old_errno;
		224
		225	mg->mg_obj = 0; /* just in case */
		226
		227	SvREADONLY_off (sv);
		228
		229	if (SvPVX (sv) != mg->mg_ptr)
		230	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		231
		232	SvCUR_set (sv, 0);
		233	SvPVX (sv) = 0;
		234	SvOK_off (sv);
		235
		236	return 0;
		237	}
		238
		239	static MGVTBL mmap_vtbl = {
		240	0, 0, 0, 0, mmap_free
		241	};
		242
		243	static int ecb_cold
		244	sysfree_free (pTHX_ SV sv, MAGIC mg)
		245	{
		246	free (mg->mg_ptr);
		247	mg->mg_obj = 0; /* just in case */
		248
		249	SvREADONLY_off (sv);
		250
		251	if (SvPVX (sv) != mg->mg_ptr)
		252	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		253
		254	SvCUR_set (sv, 0);
		255	SvPVX (sv) = 0;
		256	SvOK_off (sv);
		257
		258	return 0;
		259	}
		260
		261	static MGVTBL sysfree_vtbl = {
		262	0, 0, 0, 0, sysfree_free
		263	};
		264
		265	/*****************************************************************************/
		266
		267	/* helper: set scalar to foreign ptr with custom free */
		268	static void
		269	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		270	{
		271	sv_force_normal (sv);
		272
		273	/* we store the length in mg_obj, as namlen is I32 :/ */
		274	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		275	->mg_obj = (SV *)length;
		276
		277	SvUPGRADE (sv, SVt_PV); /* nop... */
		278
		279	if (SvLEN (sv))
		280	Safefree (SvPVX (sv));
		281
		282	SvPVX (sv) = (char *)addr;
		283	SvCUR_set (sv, length);
		284	SvLEN_set (sv, 0);
		285	SvPOK_only (sv);
		286	}
		287
		288	static void
		289	sv_clear_foreign (SV *sv)
		290	{
		291	/* todo: iterate over magic and only free ours, but of course */
		292	/* the perl5porters will call that (correct) behaviour buggy */
		293	sv_unmagic (sv, FOREIGN_MAGIC);
		294	}
		295
		296	/*****************************************************************************/
		297
150	/* defines all sorts of constants to 0 unless they are already defined */	298	/* defines all sorts of constants to 0 unless they are already defined */
151	/* also provides const_iv_ and const_niv_ macros for them */	299	/* also provides const_iv_ and const_niv_ macros for them */
152	#include "def0.h"	300	#include "def0.h"
153
154	#ifndef makedev
155	# define makedev(maj,min) (((maj) << 8) \| (min))
156	#endif
157	#ifndef major
158	# define major(dev) ((dev) >> 8)
159	#endif
160	#ifndef minor
161	# define minor(dev) ((dev) & 0xff)
162	#endif
163
164	#if PAGESIZE <= 0
165	# define PAGESIZE sysconf (_SC_PAGESIZE)
166	#endif
167		301
168	/*****************************************************************************/	302	/*****************************************************************************/
169		303
170	static void	304	static void
171	fiemap (eio_req *req)	305	fiemap (eio_req *req)
…		…
591	SvSETMAGIC (req->sv2);	725	SvSETMAGIC (req->sv2);
592	PUSHs (sv_result);	726	PUSHs (sv_result);
593	}	727	}
594	break;	728	break;
595		729
		730	case EIO_SLURP:
		731	{
		732	if (req->result >= 0)
		733	{
		734	/* if length was originally not known, we steal the malloc'ed memory */
		735	if (req->flags & EIO_FLAG_PTR2_FREE)
		736	{
		737	req->flags &= ~EIO_FLAG_PTR2_FREE;
		738	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		739	}
		740	else
		741	{
		742	SvCUR_set (req->sv2, req->result);
		743	*SvEND (req->sv2) = 0;
		744	SvPOK_only (req->sv2);
		745	}
		746
		747	SvSETMAGIC (req->sv2);
		748	}
		749
		750	PUSHs (sv_result);
		751	}
		752	break;
		753
596	case EIO_CUSTOM:	754	case EIO_CUSTOM:
597	if (req->feed == fiemap)	755	if (req->feed == fiemap)
598	{	756	{
599	#if HAVE_FIEMAP	757	#if HAVE_FIEMAP
600	if (!req->result)	758	if (!req->result)
…		…
743	create_respipe ();	901	create_respipe ();
744		902
745	if (eio_init (want_poll, done_poll) < 0)	903	if (eio_init (want_poll, done_poll) < 0)
746	croak ("IO::AIO: unable to initialise eio library");	904	croak ("IO::AIO: unable to initialise eio library");
747	}	905	}
748
749	/*****************************************************************************/
750
751	#if !_POSIX_MAPPED_FILES
752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753	# define munmap(addr,length) EIO_ENOSYS ()
754	#endif
755
756	#if !_POSIX_MEMORY_PROTECTION
757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
758	#endif
759
760	#define MMAP_MAGIC PERL_MAGIC_ext
761
762	static int ecb_cold
763	mmap_free (pTHX_ SV sv, MAGIC mg)
764	{
765	int old_errno = errno;
766	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767	errno = old_errno;
768
769	mg->mg_obj = 0; /* just in case */
770
771	SvREADONLY_off (sv);
772
773	if (SvPVX (sv) != mg->mg_ptr)
774	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776	SvCUR_set (sv, 0);
777	SvPVX (sv) = 0;
778	SvOK_off (sv);
779
780	return 0;
781	}
782
783	static MGVTBL mmap_vtbl = {
784	0, 0, 0, 0, mmap_free
785	};
786		906
787	/*****************************************************************************/	907	/*****************************************************************************/
788		908
789	static SV *	909	static SV *
790	get_cb (SV *cb_sv)	910	get_cb (SV *cb_sv)
…		…
886	req_set_path1 (req, fh_or_path);	1006	req_set_path1 (req, fh_or_path);
887	break;	1007	break;
888	}	1008	}
889	}	1009	}
890		1010
		1011	/*****************************************************************************/
		1012
		1013	static void
		1014	ts_set (struct timespec *ts, NV value)
		1015	{
		1016	ts->tv_sec = value;
		1017	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1018	}
		1019
		1020	static NV
		1021	ts_get (const struct timespec *ts)
		1022	{
		1023	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1024	}
		1025
		1026	/*****************************************************************************/
		1027
891	XS(boot_IO__AIO) ecb_cold;	1028	XS(boot_IO__AIO) ecb_cold;
892		1029
893	MODULE = IO::AIO PACKAGE = IO::AIO	1030	MODULE = IO::AIO PACKAGE = IO::AIO
894		1031
895	PROTOTYPES: ENABLE	1032	PROTOTYPES: ENABLE
…		…
924	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)	1061	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)	1062	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1063	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1064	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1065	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929	const_niv (MADV_FREE , POSIX_MADV_FREE)
930		1066
931	/* the second block will be 0 when missing */	1067	/* the second block will be 0 when missing */
		1068	const_iv (O_ACCMODE)
		1069
932	const_iv (O_RDONLY)	1070	const_iv (O_RDONLY)
933	const_iv (O_WRONLY)	1071	const_iv (O_WRONLY)
934	const_iv (O_RDWR)	1072	const_iv (O_RDWR)
935	const_iv (O_CREAT)	1073	const_iv (O_CREAT)
936	const_iv (O_TRUNC)	1074	const_iv (O_TRUNC)
…		…
995	const_iv (MAP_NONBLOCK)	1133	const_iv (MAP_NONBLOCK)
996	const_iv (MAP_GROWSDOWN)	1134	const_iv (MAP_GROWSDOWN)
997	const_iv (MAP_32BIT)	1135	const_iv (MAP_32BIT)
998	const_iv (MAP_HUGETLB)	1136	const_iv (MAP_HUGETLB)
999	const_iv (MAP_STACK)	1137	const_iv (MAP_STACK)
		1138
		1139	const_iv (MREMAP_MAYMOVE)
		1140	const_iv (MREMAP_FIXED)
		1141
		1142	const_iv (F_DUPFD_CLOEXEC)
		1143
		1144	const_iv (MSG_CMSG_CLOEXEC)
		1145	const_iv (SOCK_CLOEXEC)
		1146
		1147	const_iv (F_OFD_GETLK)
		1148	const_iv (F_OFD_SETLK)
		1149	const_iv (F_OFD_GETLKW)
1000		1150
1001	const_iv (FIFREEZE)	1151	const_iv (FIFREEZE)
1002	const_iv (FITHAW)	1152	const_iv (FITHAW)
1003	const_iv (FITRIM)	1153	const_iv (FITRIM)
1004	const_iv (FICLONE)	1154	const_iv (FICLONE)
…		…
1073	const_iv (SPLICE_F_MOVE)	1223	const_iv (SPLICE_F_MOVE)
1074	const_iv (SPLICE_F_NONBLOCK)	1224	const_iv (SPLICE_F_NONBLOCK)
1075	const_iv (SPLICE_F_MORE)	1225	const_iv (SPLICE_F_MORE)
1076	const_iv (SPLICE_F_GIFT)	1226	const_iv (SPLICE_F_GIFT)
1077		1227
		1228	const_iv (EFD_CLOEXEC)
		1229	const_iv (EFD_NONBLOCK)
		1230	const_iv (EFD_SEMAPHORE)
		1231
		1232	const_iv (CLOCK_REALTIME)
		1233	const_iv (CLOCK_MONOTONIC)
		1234	const_iv (CLOCK_BOOTTIME)
		1235	const_iv (CLOCK_REALTIME_ALARM)
		1236	const_iv (CLOCK_BOOTTIME_ALARM)
		1237
		1238	const_iv (TFD_NONBLOCK)
		1239	const_iv (TFD_CLOEXEC)
		1240
		1241	const_iv (TFD_TIMER_ABSTIME)
		1242	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1243
1078	/* these are libeio constants, and are independent of gendef0 */	1244	/* these are libeio constants, and are independent of gendef0 */
1079	const_eio (SEEK_SET)	1245	const_eio (SEEK_SET)
1080	const_eio (SEEK_CUR)	1246	const_eio (SEEK_CUR)
1081	const_eio (SEEK_END)	1247	const_eio (SEEK_END)
1082		1248
…		…
1095		1261
1096	const_eio (FALLOC_FL_KEEP_SIZE)	1262	const_eio (FALLOC_FL_KEEP_SIZE)
1097	const_eio (FALLOC_FL_PUNCH_HOLE)	1263	const_eio (FALLOC_FL_PUNCH_HOLE)
1098	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1264	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099	const_eio (FALLOC_FL_ZERO_RANGE)	1265	const_eio (FALLOC_FL_ZERO_RANGE)
		1266	const_eio (FALLOC_FL_INSERT_RANGE)
		1267	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1268
		1269	const_eio (RENAME_NOREPLACE)
		1270	const_eio (RENAME_EXCHANGE)
		1271	const_eio (RENAME_WHITEOUT)
1100		1272
1101	const_eio (READDIR_DENTS)	1273	const_eio (READDIR_DENTS)
1102	const_eio (READDIR_DIRS_FIRST)	1274	const_eio (READDIR_DIRS_FIRST)
1103	const_eio (READDIR_STAT_ORDER)	1275	const_eio (READDIR_STAT_ORDER)
1104	const_eio (READDIR_FOUND_UNKNOWN)	1276	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1459	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1631	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1460		1632
1461	REQ_SEND;	1633	REQ_SEND;
1462	}	1634	}
1463		1635
		1636	void
		1637	st_xtime ()
		1638	ALIAS:
		1639	st_atime = 1
		1640	st_mtime = 2
		1641	st_ctime = 4
		1642	st_xtime = 7
		1643	PPCODE:
		1644	EXTEND (SP, 3);
		1645	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1646	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1647	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1648
		1649	void
		1650	st_xtimensec ()
		1651	ALIAS:
		1652	st_atimensec = 1
		1653	st_mtimensec = 2
		1654	st_ctimensec = 4
		1655	st_xtimensec = 7
		1656	PPCODE:
		1657	EXTEND (SP, 3);
		1658	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1659	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1660	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1661
1464	UV	1662	UV
1465	major (UV dev)	1663	major (UV dev)
1466	ALIAS:	1664	ALIAS:
1467	minor = 1	1665	minor = 1
1468	CODE:	1666	CODE:
…		…
1591		1789
1592	REQ_SEND;	1790	REQ_SEND;
1593	}	1791	}
1594		1792
1595	void	1793	void
		1794	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1795	PPCODE:
		1796	{
		1797	eio_wd wd2 = 0;
		1798	dREQ;
		1799
		1800	req->type = EIO_RENAME;
		1801	req_set_path1 (req, oldpath);
		1802	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1803	req->int2 = flags;
		1804	req->int3 = (long)wd2;
		1805
		1806	REQ_SEND;
		1807	}
		1808
		1809	void
1596	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)	1810	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1597	PPCODE:	1811	PPCODE:
1598	{	1812	{
1599	dREQ;	1813	dREQ;
1600		1814
…		…
1605		1819
1606	REQ_SEND;	1820	REQ_SEND;
1607	}	1821	}
1608		1822
1609	void	1823	void
1610	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1824	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1611	ALIAS:	1825	ALIAS:
1612	aio_mtouch = EIO_MTOUCH	1826	aio_mtouch = EIO_MTOUCH
1613	aio_msync = EIO_MSYNC	1827	aio_msync = EIO_MSYNC
1614	PPCODE:	1828	PPCODE:
1615	{	1829	{
1616	STRLEN svlen;	1830	STRLEN svlen;
1617	char *svptr = SvPVbyte (data, svlen);	1831	char *svptr = SvPVbyte (data, svlen);
1618	UV len = SvUV (length);	1832	UV len = SvUV (length);
		1833
		1834	if (flags < 0)
		1835	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1619		1836
1620	if (offset < 0)	1837	if (offset < 0)
1621	offset += svlen;	1838	offset += svlen;
1622		1839
1623	if (offset < 0 \|\| offset > svlen)	1840	if (offset < 0 \|\| offset > svlen)
…		…
1699	req->int2 = flags;	1916	req->int2 = flags;
1700	req->int3 = SvOK (count) ? SvIV (count) : -1;	1917	req->int3 = SvOK (count) ? SvIV (count) : -1;
1701	#endif	1918	#endif
1702		1919
1703	REQ_SEND;	1920	REQ_SEND;
		1921	}
		1922
		1923	void
		1924	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1925	PPCODE:
		1926	{
		1927	char *svptr = 0;
		1928
		1929	sv_clear_foreign (data);
		1930
		1931	if (length) /* known length, directly read into scalar */
		1932	{
		1933	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1934	svptr = sv_grow (data, length + 1);
		1935	else if (SvCUR (data) < length)
		1936	croak ("length outside of scalar, and cannot grow");
		1937	else
		1938	svptr = SvPVbyte_nolen (data);
		1939	}
		1940
		1941	{
		1942	dREQ;
		1943
		1944	req->type = EIO_SLURP;
		1945	req_set_path1 (req, pathname);
		1946	req->offs = offset;
		1947	req->size = length;
		1948	req->sv2 = SvREFCNT_inc (data);
		1949	req->ptr2 = svptr;
		1950
		1951	if (!SvREADONLY (data))
		1952	{
		1953	SvREADONLY_on (data);
		1954	req->flags \|= FLAG_SV2_RO_OFF;
		1955	}
		1956
		1957	REQ_SEND;
		1958	}
1704	}	1959	}
1705		1960
1706	void	1961	void
1707	aio_busy (double delay, SV *callback = &PL_sv_undef)	1962	aio_busy (double delay, SV *callback = &PL_sv_undef)
1708	PPCODE:	1963	PPCODE:
…		…
1845	RETVAL	2100	RETVAL
1846		2101
1847	void	2102	void
1848	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2103	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1849	PPCODE:	2104	PPCODE:
1850	sv_unmagic (scalar, MMAP_MAGIC);	2105	sv_clear_foreign (scalar);
1851	{	2106	{
1852	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2107	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1853	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2108	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1854	if (addr == (void *)-1)	2109	if (addr == (void *)-1)
1855	XSRETURN_NO;	2110	XSRETURN_NO;
1856		2111
1857	sv_force_normal (scalar);	2112	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1858
1859	/* we store the length in mg_obj, as namlen is I32 :/ */
1860	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1861	->mg_obj = (SV *)length;
1862
1863	SvUPGRADE (scalar, SVt_PV); /* nop... */
1864		2113
1865	if (!(prot & PROT_WRITE))	2114	if (!(prot & PROT_WRITE))
1866	SvREADONLY_on (scalar);	2115	SvREADONLY_on (scalar);
1867		2116
1868	if (SvLEN (scalar))
1869	Safefree (SvPVX (scalar));
1870
1871	SvPVX (scalar) = (char *)addr;
1872	SvCUR_set (scalar, length);
1873	SvLEN_set (scalar, 0);
1874	SvPOK_only (scalar);
1875
1876	XSRETURN_YES;	2117	XSRETURN_YES;
1877	}	2118	}
1878		2119
1879	void	2120	void
1880	munmap (SV *scalar)	2121	munmap (SV *scalar)
1881	CODE:	2122	CODE:
1882	sv_unmagic (scalar, MMAP_MAGIC);	2123	sv_clear_foreign (scalar);
		2124
		2125	SV *
		2126	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2127	CODE:
		2128	{
		2129	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2130	void *new;
		2131
		2132	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2133	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2134
		2135	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2136
		2137	RETVAL = &PL_sv_no;
		2138
		2139	if (new != (void *)-1)
		2140	{
		2141	RETVAL = new == (void *)mg->mg_ptr
		2142	? newSVpvn ("0 but true", 10)
		2143	: &PL_sv_yes;
		2144
		2145	mg->mg_ptr = (char *)new;
		2146	mg->mg_obj = (SV *)new_length;
		2147
		2148	SvPVX (scalar) = mg->mg_ptr;
		2149	SvCUR_set (scalar, new_length);
		2150	}
		2151	}
		2152	OUTPUT:
		2153	RETVAL
1883		2154
1884	int	2155	int
1885	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2156	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1886	ALIAS:	2157	ALIAS:
1887	mprotect = 1	2158	mprotect = 1
…		…
2017	{	2288	{
2018	EXTEND (SP, 2);	2289	EXTEND (SP, 2);
2019	PUSHs (newmortalFH (fd[0], O_RDONLY));	2290	PUSHs (newmortalFH (fd[0], O_RDONLY));
2020	PUSHs (newmortalFH (fd[1], O_WRONLY));	2291	PUSHs (newmortalFH (fd[1], O_WRONLY));
2021	}	2292	}
		2293	}
		2294
		2295	void
		2296	eventfd (unsigned int initval = 0, int flags = 0)
		2297	PPCODE:
		2298	{
		2299	int fd;
		2300	#if HAVE_EVENTFD
		2301	fd = eventfd (initval, flags);
		2302	#else
		2303	fd = (errno = ENOSYS, -1);
		2304	#endif
		2305
		2306	XPUSHs (newmortalFH (fd, O_RDWR));
		2307	}
		2308
		2309	void
		2310	timerfd_create (int clockid, int flags = 0)
		2311	PPCODE:
		2312	{
		2313	int fd;
		2314	#if HAVE_TIMERFD
		2315	fd = timerfd_create (clockid, flags);
		2316	#else
		2317	fd = (errno = ENOSYS, -1);
		2318	#endif
		2319
		2320	XPUSHs (newmortalFH (fd, O_RDWR));
		2321	}
		2322
		2323	void
		2324	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2325	PPCODE:
		2326	{
		2327	int fd = s_fileno_croak (fh, 0);
		2328	#if HAVE_TIMERFD
		2329	int res;
		2330	struct itimerspec its, ots;
		2331
		2332	ts_set (&its.it_interval, interval);
		2333	ts_set (&its.it_value , value);
		2334	res = timerfd_settime (fd, flags, &its, &ots);
		2335
		2336	if (!res)
		2337	{
		2338	EXTEND (SP, 2);
		2339	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2340	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2341	}
		2342	#else
		2343	errno = ENOSYS;
		2344	#endif
		2345	}
		2346
		2347	void
		2348	timerfd_gettime (SV *fh)
		2349	PPCODE:
		2350	{
		2351	int fd = s_fileno_croak (fh, 0);
		2352	#if HAVE_TIMERFD
		2353	int res;
		2354	struct itimerspec ots;
		2355	res = timerfd_gettime (fd, &ots);
		2356
		2357	if (!res)
		2358	{
		2359	EXTEND (SP, 2);
		2360	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2361	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2362	}
		2363	#else
		2364	errno = ENOSYS;
		2365	#endif
		2366	}
		2367
		2368	UV
		2369	get_fdlimit ()
		2370	CODE:
		2371	#if HAVE_RLIMITS
		2372	struct rlimit rl;
		2373	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2374	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2375	#endif
		2376	XSRETURN_UNDEF;
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	void
		2381	min_fdlimit (UV limit = 0x7fffffffU)
		2382	CODE:
		2383	{
		2384	#if HAVE_RLIMITS
		2385	struct rlimit rl;
		2386	rlim_t orig_rlim_max;
		2387	UV bit;
		2388
		2389	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2390	goto fail;
		2391
		2392	if (rl.rlim_cur == RLIM_INFINITY)
		2393	XSRETURN_YES;
		2394
		2395	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2396
		2397	if (rl.rlim_cur < limit)
		2398	{
		2399	rl.rlim_cur = limit;
		2400
		2401	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2402	rl.rlim_max = rl.rlim_cur;
		2403	}
		2404
		2405	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2406	XSRETURN_YES;
		2407
		2408	if (errno == EPERM)
		2409	{
		2410	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2411	/* our limit overflows a system-wide limit */
		2412	/* try an adaptive algorithm, but do not lower the hardlimit */
		2413	rl.rlim_max = 0;
		2414	for (bit = 0x40000000U; bit; bit >>= 1)
		2415	{
		2416	rl.rlim_max \|= bit;
		2417	rl.rlim_cur = rl.rlim_max;
		2418
		2419	/* nevr decrease the hard limit */
		2420	if (rl.rlim_max < orig_rlim_max)
		2421	break;
		2422
		2423	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2424	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2425	}
		2426
		2427	/* now, raise the soft limit to the max permitted */
		2428	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2429	{
		2430	rl.rlim_cur = rl.rlim_max;
		2431	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2432	errno = EPERM;
		2433	}
		2434	}
		2435	#endif
		2436	fail:
		2437	XSRETURN_UNDEF;
2022	}	2438	}
2023		2439
2024	void _on_next_submit (SV *cb)	2440	void _on_next_submit (SV *cb)
2025	CODE:	2441	CODE:
2026	SvREFCNT_dec (on_next_submit);	2442	SvREFCNT_dec (on_next_submit);

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing IO-AIO/AIO.xs (file contents): Revision 1.243 by root, Mon Jul 18 07:48:01 2016 UTC vs. Revision 1.264 by root, Tue Aug 14 11:44:52 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.243 by root, Mon Jul 18 07:48:01 2016 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 2018 UTC