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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.248 by root, Fri Jun 23 22:33:06 2017 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 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_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
19		28
20	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK \|\| _POSIX_MEMLOCK_RANGE \|\| _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	30	# include <sys/mman.h>
22	#endif	31	#endif
23		32
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
106		115
107	/*****************************************************************************/	116	/*****************************************************************************/
108		117
		118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
		148
109	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	150	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	151	typedef int aio_wfd; /* write file descriptor */
112		152
113	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	153	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
119	STRLEN stroffset; \	159	STRLEN stroffset; \
120	SV *self;	160	SV *self;
121		161
122	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
123		163
124	#include "libeio/config.h"
125	#include "libeio/eio.h"	164	#include "libeio/eio.h"
126		165
127	static int req_invoke (eio_req *req);	166	static int req_invoke (eio_req *req);
128	#define EIO_FINISH(req) req_invoke (req)	167	#define EIO_FINISH(req) req_invoke (req)
129	static void req_destroy (eio_req *grp);	168	static void req_destroy (eio_req *grp);
…		…
145	# else	184	# else
146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147	# endif	186	# endif
148	#endif	187	#endif
149		188
		189	#ifndef makedev
		190	# define makedev(maj,min) (((maj) << 8) \| (min))
		191	#endif
		192	#ifndef major
		193	# define major(dev) ((dev) >> 8)
		194	#endif
		195	#ifndef minor
		196	# define minor(dev) ((dev) & 0xff)
		197	#endif
		198
		199	#if PAGESIZE <= 0
		200	# define PAGESIZE sysconf (_SC_PAGESIZE)
		201	#endif
		202
		203	/*****************************************************************************/
		204
		205	#if !_POSIX_MAPPED_FILES
		206	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		207	# define munmap(addr,length) EIO_ENOSYS ()
		208	#endif
		209
		210	#if !_POSIX_MEMORY_PROTECTION
		211	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		212	#endif
		213
		214	#if !MREMAP_MAYMOVE
		215	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		216	#endif
		217
		218	#define FOREIGN_MAGIC PERL_MAGIC_ext
		219
		220	static int ecb_cold
		221	mmap_free (pTHX_ SV sv, MAGIC mg)
		222	{
		223	int old_errno = errno;
		224	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		225	errno = old_errno;
		226
		227	mg->mg_obj = 0; /* just in case */
		228
		229	SvREADONLY_off (sv);
		230
		231	if (SvPVX (sv) != mg->mg_ptr)
		232	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		233
		234	SvCUR_set (sv, 0);
		235	SvPVX (sv) = 0;
		236	SvOK_off (sv);
		237
		238	return 0;
		239	}
		240
		241	static MGVTBL mmap_vtbl = {
		242	0, 0, 0, 0, mmap_free
		243	};
		244
		245	static int ecb_cold
		246	sysfree_free (pTHX_ SV sv, MAGIC mg)
		247	{
		248	free (mg->mg_ptr);
		249	mg->mg_obj = 0; /* just in case */
		250
		251	SvREADONLY_off (sv);
		252
		253	if (SvPVX (sv) != mg->mg_ptr)
		254	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		255
		256	SvCUR_set (sv, 0);
		257	SvPVX (sv) = 0;
		258	SvOK_off (sv);
		259
		260	return 0;
		261	}
		262
		263	static MGVTBL sysfree_vtbl = {
		264	0, 0, 0, 0, sysfree_free
		265	};
		266
		267	/*****************************************************************************/
		268
		269	/* helper: set scalar to foreign ptr with custom free */
		270	static void
		271	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		272	{
		273	sv_force_normal (sv);
		274
		275	/* we store the length in mg_obj, as namlen is I32 :/ */
		276	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		277	->mg_obj = (SV *)length;
		278
		279	SvUPGRADE (sv, SVt_PV); /* nop... */
		280
		281	if (SvLEN (sv))
		282	Safefree (SvPVX (sv));
		283
		284	SvPVX (sv) = (char *)addr;
		285	SvCUR_set (sv, length);
		286	SvLEN_set (sv, 0);
		287	SvPOK_only (sv);
		288	}
		289
		290	static void
		291	sv_clear_foreign (SV *sv)
		292	{
		293	/* todo: iterate over magic and only free ours, but of course */
		294	/* the perl5porters will call that (correct) behaviour buggy */
		295	sv_unmagic (sv, FOREIGN_MAGIC);
		296	}
		297
		298	/*****************************************************************************/
		299
150	/* defines all sorts of constants to 0 unless they are already defined */	300	/* defines all sorts of constants to 0 unless they are already defined */
151	/* also provides const_iv_ and const_niv_ macros for them */	301	/* also provides const_iv_ and const_niv_ macros for them */
152	#include "def0.h"	302	#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		303
168	/*****************************************************************************/	304	/*****************************************************************************/
169		305
170	static void	306	static void
171	fiemap (eio_req *req)	307	fiemap (eio_req *req)
…		…
591	SvSETMAGIC (req->sv2);	727	SvSETMAGIC (req->sv2);
592	PUSHs (sv_result);	728	PUSHs (sv_result);
593	}	729	}
594	break;	730	break;
595		731
		732	case EIO_SLURP:
		733	{
		734	if (req->result >= 0)
		735	{
		736	/* if length was originally not known, we steal the malloc'ed memory */
		737	if (req->flags & EIO_FLAG_PTR2_FREE)
		738	{
		739	req->flags &= ~EIO_FLAG_PTR2_FREE;
		740	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		741	}
		742	else
		743	{
		744	SvCUR_set (req->sv2, req->result);
		745	*SvEND (req->sv2) = 0;
		746	SvPOK_only (req->sv2);
		747	}
		748
		749	SvSETMAGIC (req->sv2);
		750	}
		751
		752	PUSHs (sv_result);
		753	}
		754	break;
		755
596	case EIO_CUSTOM:	756	case EIO_CUSTOM:
597	if (req->feed == fiemap)	757	if (req->feed == fiemap)
598	{	758	{
599	#if HAVE_FIEMAP	759	#if HAVE_FIEMAP
600	if (!req->result)	760	if (!req->result)
…		…
743	create_respipe ();	903	create_respipe ();
744		904
745	if (eio_init (want_poll, done_poll) < 0)	905	if (eio_init (want_poll, done_poll) < 0)
746	croak ("IO::AIO: unable to initialise eio library");	906	croak ("IO::AIO: unable to initialise eio library");
747	}	907	}
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		908
787	/*****************************************************************************/	909	/*****************************************************************************/
788		910
789	static SV *	911	static SV *
790	get_cb (SV *cb_sv)	912	get_cb (SV *cb_sv)
…		…
886	req_set_path1 (req, fh_or_path);	1008	req_set_path1 (req, fh_or_path);
887	break;	1009	break;
888	}	1010	}
889	}	1011	}
890		1012
		1013	/*****************************************************************************/
		1014
		1015	static void
		1016	ts_set (struct timespec *ts, NV value)
		1017	{
		1018	ts->tv_sec = value;
		1019	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1020	}
		1021
		1022	static NV
		1023	ts_get (const struct timespec *ts)
		1024	{
		1025	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1026	}
		1027
		1028	/*****************************************************************************/
		1029
891	XS(boot_IO__AIO) ecb_cold;	1030	XS(boot_IO__AIO) ecb_cold;
892		1031
893	MODULE = IO::AIO PACKAGE = IO::AIO	1032	MODULE = IO::AIO PACKAGE = IO::AIO
894		1033
895	PROTOTYPES: ENABLE	1034	PROTOTYPES: ENABLE
…		…
926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1065	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1066	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1067	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929		1068
930	/* the second block will be 0 when missing */	1069	/* the second block will be 0 when missing */
		1070	const_iv (O_ACCMODE)
		1071
931	const_iv (O_RDONLY)	1072	const_iv (O_RDONLY)
932	const_iv (O_WRONLY)	1073	const_iv (O_WRONLY)
933	const_iv (O_RDWR)	1074	const_iv (O_RDWR)
934	const_iv (O_CREAT)	1075	const_iv (O_CREAT)
935	const_iv (O_TRUNC)	1076	const_iv (O_TRUNC)
…		…
995	const_iv (MAP_GROWSDOWN)	1136	const_iv (MAP_GROWSDOWN)
996	const_iv (MAP_32BIT)	1137	const_iv (MAP_32BIT)
997	const_iv (MAP_HUGETLB)	1138	const_iv (MAP_HUGETLB)
998	const_iv (MAP_STACK)	1139	const_iv (MAP_STACK)
999		1140
		1141	const_iv (MREMAP_MAYMOVE)
		1142	const_iv (MREMAP_FIXED)
		1143
1000	const_iv (F_DUPFD_CLOEXEC)	1144	const_iv (F_DUPFD_CLOEXEC)
		1145
		1146	const_iv (MSG_CMSG_CLOEXEC)
		1147	const_iv (SOCK_CLOEXEC)
1001		1148
1002	const_iv (F_OFD_GETLK)	1149	const_iv (F_OFD_GETLK)
1003	const_iv (F_OFD_SETLK)	1150	const_iv (F_OFD_SETLK)
1004	const_iv (F_OFD_GETLKW)	1151	const_iv (F_OFD_GETLKW)
1005		1152
…		…
1078	const_iv (SPLICE_F_MOVE)	1225	const_iv (SPLICE_F_MOVE)
1079	const_iv (SPLICE_F_NONBLOCK)	1226	const_iv (SPLICE_F_NONBLOCK)
1080	const_iv (SPLICE_F_MORE)	1227	const_iv (SPLICE_F_MORE)
1081	const_iv (SPLICE_F_GIFT)	1228	const_iv (SPLICE_F_GIFT)
1082		1229
		1230	const_iv (EFD_CLOEXEC)
		1231	const_iv (EFD_NONBLOCK)
		1232	const_iv (EFD_SEMAPHORE)
		1233
		1234	const_iv (CLOCK_REALTIME)
		1235	const_iv (CLOCK_MONOTONIC)
		1236	const_iv (CLOCK_BOOTTIME)
		1237	const_iv (CLOCK_REALTIME_ALARM)
		1238	const_iv (CLOCK_BOOTTIME_ALARM)
		1239
		1240	const_iv (TFD_NONBLOCK)
		1241	const_iv (TFD_CLOEXEC)
		1242
		1243	const_iv (TFD_TIMER_ABSTIME)
		1244	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1245
1083	/* these are libeio constants, and are independent of gendef0 */	1246	/* these are libeio constants, and are independent of gendef0 */
1084	const_eio (SEEK_SET)	1247	const_eio (SEEK_SET)
1085	const_eio (SEEK_CUR)	1248	const_eio (SEEK_CUR)
1086	const_eio (SEEK_END)	1249	const_eio (SEEK_END)
1087		1250
…		…
1100		1263
1101	const_eio (FALLOC_FL_KEEP_SIZE)	1264	const_eio (FALLOC_FL_KEEP_SIZE)
1102	const_eio (FALLOC_FL_PUNCH_HOLE)	1265	const_eio (FALLOC_FL_PUNCH_HOLE)
1103	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1266	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1104	const_eio (FALLOC_FL_ZERO_RANGE)	1267	const_eio (FALLOC_FL_ZERO_RANGE)
1105	const_eio (FALLOC_FL_INSET_RANGE)	1268	const_eio (FALLOC_FL_INSERT_RANGE)
1106	const_eio (FALLOC_FL_UNSHARE_RANGE)	1269	const_eio (FALLOC_FL_UNSHARE_RANGE)
1107		1270
1108	const_eio (RENAME_NOREPLACE)	1271	const_eio (RENAME_NOREPLACE)
1109	const_eio (RENAME_EXCHANGE)	1272	const_eio (RENAME_EXCHANGE)
1110	const_eio (RENAME_WHITEOUT)	1273	const_eio (RENAME_WHITEOUT)
…		…
1470	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1633	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1471		1634
1472	REQ_SEND;	1635	REQ_SEND;
1473	}	1636	}
1474		1637
		1638	void
		1639	st_xtime ()
		1640	ALIAS:
		1641	st_atime = 1
		1642	st_mtime = 2
		1643	st_ctime = 4
		1644	st_xtime = 7
		1645	PPCODE:
		1646	EXTEND (SP, 3);
		1647	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1648	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1649	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1650
		1651	void
		1652	st_xtimensec ()
		1653	ALIAS:
		1654	st_atimensec = 1
		1655	st_mtimensec = 2
		1656	st_ctimensec = 4
		1657	st_xtimensec = 7
		1658	PPCODE:
		1659	EXTEND (SP, 3);
		1660	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1661	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1662	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1663
1475	UV	1664	UV
1476	major (UV dev)	1665	major (UV dev)
1477	ALIAS:	1666	ALIAS:
1478	minor = 1	1667	minor = 1
1479	CODE:	1668	CODE:
…		…
1729	req->int2 = flags;	1918	req->int2 = flags;
1730	req->int3 = SvOK (count) ? SvIV (count) : -1;	1919	req->int3 = SvOK (count) ? SvIV (count) : -1;
1731	#endif	1920	#endif
1732		1921
1733	REQ_SEND;	1922	REQ_SEND;
		1923	}
		1924
		1925	void
		1926	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1927	PPCODE:
		1928	{
		1929	char *svptr = 0;
		1930
		1931	sv_clear_foreign (data);
		1932
		1933	if (length) /* known length, directly read into scalar */
		1934	{
		1935	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1936	svptr = sv_grow (data, length + 1);
		1937	else if (SvCUR (data) < length)
		1938	croak ("length outside of scalar, and cannot grow");
		1939	else
		1940	svptr = SvPVbyte_nolen (data);
		1941	}
		1942
		1943	{
		1944	dREQ;
		1945
		1946	req->type = EIO_SLURP;
		1947	req_set_path1 (req, pathname);
		1948	req->offs = offset;
		1949	req->size = length;
		1950	req->sv2 = SvREFCNT_inc (data);
		1951	req->ptr2 = svptr;
		1952
		1953	if (!SvREADONLY (data))
		1954	{
		1955	SvREADONLY_on (data);
		1956	req->flags \|= FLAG_SV2_RO_OFF;
		1957	}
		1958
		1959	REQ_SEND;
		1960	}
1734	}	1961	}
1735		1962
1736	void	1963	void
1737	aio_busy (double delay, SV *callback = &PL_sv_undef)	1964	aio_busy (double delay, SV *callback = &PL_sv_undef)
1738	PPCODE:	1965	PPCODE:
…		…
1875	RETVAL	2102	RETVAL
1876		2103
1877	void	2104	void
1878	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2105	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1879	PPCODE:	2106	PPCODE:
1880	sv_unmagic (scalar, MMAP_MAGIC);	2107	sv_clear_foreign (scalar);
1881	{	2108	{
1882	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2109	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2110	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1884	if (addr == (void *)-1)	2111	if (addr == (void *)-1)
1885	XSRETURN_NO;	2112	XSRETURN_NO;
1886		2113
1887	sv_force_normal (scalar);	2114	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1888
1889	/* we store the length in mg_obj, as namlen is I32 :/ */
1890	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1891	->mg_obj = (SV *)length;
1892
1893	SvUPGRADE (scalar, SVt_PV); /* nop... */
1894		2115
1895	if (!(prot & PROT_WRITE))	2116	if (!(prot & PROT_WRITE))
1896	SvREADONLY_on (scalar);	2117	SvREADONLY_on (scalar);
1897		2118
1898	if (SvLEN (scalar))
1899	Safefree (SvPVX (scalar));
1900
1901	SvPVX (scalar) = (char *)addr;
1902	SvCUR_set (scalar, length);
1903	SvLEN_set (scalar, 0);
1904	SvPOK_only (scalar);
1905
1906	XSRETURN_YES;	2119	XSRETURN_YES;
1907	}	2120	}
1908		2121
1909	void	2122	void
1910	munmap (SV *scalar)	2123	munmap (SV *scalar)
1911	CODE:	2124	CODE:
1912	sv_unmagic (scalar, MMAP_MAGIC);	2125	sv_clear_foreign (scalar);
		2126
		2127	SV *
		2128	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2129	CODE:
		2130	{
		2131	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2132	void *new;
		2133
		2134	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2135	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2136
		2137	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2138
		2139	RETVAL = &PL_sv_no;
		2140
		2141	if (new != (void *)-1)
		2142	{
		2143	RETVAL = new == (void *)mg->mg_ptr
		2144	? newSVpvn ("0 but true", 10)
		2145	: &PL_sv_yes;
		2146
		2147	mg->mg_ptr = (char *)new;
		2148	mg->mg_obj = (SV *)new_length;
		2149
		2150	SvPVX (scalar) = mg->mg_ptr;
		2151	SvCUR_set (scalar, new_length);
		2152	}
		2153	}
		2154	OUTPUT:
		2155	RETVAL
1913		2156
1914	int	2157	int
1915	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2158	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1916	ALIAS:	2159	ALIAS:
1917	mprotect = 1	2160	mprotect = 1
…		…
2047	{	2290	{
2048	EXTEND (SP, 2);	2291	EXTEND (SP, 2);
2049	PUSHs (newmortalFH (fd[0], O_RDONLY));	2292	PUSHs (newmortalFH (fd[0], O_RDONLY));
2050	PUSHs (newmortalFH (fd[1], O_WRONLY));	2293	PUSHs (newmortalFH (fd[1], O_WRONLY));
2051	}	2294	}
		2295	}
		2296
		2297	void
		2298	eventfd (unsigned int initval = 0, int flags = 0)
		2299	PPCODE:
		2300	{
		2301	int fd;
		2302	#if HAVE_EVENTFD
		2303	fd = eventfd (initval, flags);
		2304	#else
		2305	fd = (errno = ENOSYS, -1);
		2306	#endif
		2307
		2308	XPUSHs (newmortalFH (fd, O_RDWR));
		2309	}
		2310
		2311	void
		2312	timerfd_create (int clockid, int flags = 0)
		2313	PPCODE:
		2314	{
		2315	int fd;
		2316	#if HAVE_TIMERFD
		2317	fd = timerfd_create (clockid, flags);
		2318	#else
		2319	fd = (errno = ENOSYS, -1);
		2320	#endif
		2321
		2322	XPUSHs (newmortalFH (fd, O_RDWR));
		2323	}
		2324
		2325	void
		2326	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2327	PPCODE:
		2328	{
		2329	int fd = s_fileno_croak (fh, 0);
		2330	#if HAVE_TIMERFD
		2331	int res;
		2332	struct itimerspec its, ots;
		2333
		2334	ts_set (&its.it_interval, interval);
		2335	ts_set (&its.it_value , value);
		2336	res = timerfd_settime (fd, flags, &its, &ots);
		2337
		2338	if (!res)
		2339	{
		2340	EXTEND (SP, 2);
		2341	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2342	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2343	}
		2344	#else
		2345	errno = ENOSYS;
		2346	#endif
		2347	}
		2348
		2349	void
		2350	timerfd_gettime (SV *fh)
		2351	PPCODE:
		2352	{
		2353	int fd = s_fileno_croak (fh, 0);
		2354	#if HAVE_TIMERFD
		2355	int res;
		2356	struct itimerspec ots;
		2357	res = timerfd_gettime (fd, &ots);
		2358
		2359	if (!res)
		2360	{
		2361	EXTEND (SP, 2);
		2362	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2363	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2364	}
		2365	#else
		2366	errno = ENOSYS;
		2367	#endif
		2368	}
		2369
		2370	UV
		2371	get_fdlimit ()
		2372	CODE:
		2373	#if HAVE_RLIMITS
		2374	struct rlimit rl;
		2375	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2376	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2377	#endif
		2378	XSRETURN_UNDEF;
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	void
		2383	min_fdlimit (UV limit = 0x7fffffffU)
		2384	CODE:
		2385	{
		2386	#if HAVE_RLIMITS
		2387	struct rlimit rl;
		2388	rlim_t orig_rlim_max;
		2389	UV bit;
		2390
		2391	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2392	goto fail;
		2393
		2394	if (rl.rlim_cur == RLIM_INFINITY)
		2395	XSRETURN_YES;
		2396
		2397	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2398
		2399	if (rl.rlim_cur < limit)
		2400	{
		2401	rl.rlim_cur = limit;
		2402
		2403	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2404	rl.rlim_max = rl.rlim_cur;
		2405	}
		2406
		2407	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_YES;
		2409
		2410	if (errno == EPERM)
		2411	{
		2412	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2413	/* our limit overflows a system-wide limit */
		2414	/* try an adaptive algorithm, but do not lower the hardlimit */
		2415	rl.rlim_max = 0;
		2416	for (bit = 0x40000000U; bit; bit >>= 1)
		2417	{
		2418	rl.rlim_max \|= bit;
		2419	rl.rlim_cur = rl.rlim_max;
		2420
		2421	/* nevr decrease the hard limit */
		2422	if (rl.rlim_max < orig_rlim_max)
		2423	break;
		2424
		2425	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2426	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2427	}
		2428
		2429	/* now, raise the soft limit to the max permitted */
		2430	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2431	{
		2432	rl.rlim_cur = rl.rlim_max;
		2433	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2434	errno = EPERM;
		2435	}
		2436	}
		2437	#endif
		2438	fail:
		2439	XSRETURN_UNDEF;
2052	}	2440	}
2053		2441
2054	void _on_next_submit (SV *cb)	2442	void _on_next_submit (SV *cb)
2055	CODE:	2443	CODE:
2056	SvREFCNT_dec (on_next_submit);	2444	SvREFCNT_dec (on_next_submit);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.248 by root, Fri Jun 23 22:33:06 2017 UTC vs. Revision 1.265 by root, Tue Aug 14 11:50:43 2018 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.248 by root, Fri Jun 23 22:33:06 2017 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 2018 UTC