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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.239 by root, Tue Feb 23 19:42:43 2016 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

…		…
21	# include <sys/mman.h>	21	# include <sys/mman.h>
22	#endif	22	#endif
23		23
24	/* the incompetent fool that created musl keeps __linux__, refuses	24	/* the incompetent fool that created musl keeps __linux__, refuses
25	* to implement any linux standard apis, and also has no way to test	25	* to implement any linux standard apis, and also has no way to test
26	* for his broken iplementation. on't complain if this fails for you.	26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
27	*/	28	*/
28	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)	29	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)
29	# include <linux/fs.h>	30	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	32	# include <linux/types.h>
…		…
103	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
105		106
106	/*****************************************************************************/	107	/*****************************************************************************/
107		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_RLIMITS
		116	#include <sys/time.h>
		117	#include <sys/resource.h>
		118	#endif
		119
108	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
111		123
112	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	124	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
118	STRLEN stroffset; \	130	STRLEN stroffset; \
119	SV *self;	131	SV *self;
120		132
121	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
122		134
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	135	#include "libeio/eio.h"
125		136
126	static int req_invoke (eio_req *req);	137	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	138	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	139	static void req_destroy (eio_req *grp);
…		…
161	#endif	172	#endif
162		173
163	#if PAGESIZE <= 0	174	#if PAGESIZE <= 0
164	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
165	#endif	176	#endif
		177
		178	/*****************************************************************************/
		179
		180	#if !_POSIX_MAPPED_FILES
		181	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		182	# define munmap(addr,length) EIO_ENOSYS ()
		183	#endif
		184
		185	#if !_POSIX_MEMORY_PROTECTION
		186	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		187	#endif
		188
		189	#define FOREIGN_MAGIC PERL_MAGIC_ext
		190
		191	static int ecb_cold
		192	mmap_free (pTHX_ SV sv, MAGIC mg)
		193	{
		194	int old_errno = errno;
		195	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		196	errno = old_errno;
		197
		198	mg->mg_obj = 0; /* just in case */
		199
		200	SvREADONLY_off (sv);
		201
		202	if (SvPVX (sv) != mg->mg_ptr)
		203	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		204
		205	SvCUR_set (sv, 0);
		206	SvPVX (sv) = 0;
		207	SvOK_off (sv);
		208
		209	return 0;
		210	}
		211
		212	static MGVTBL mmap_vtbl = {
		213	0, 0, 0, 0, mmap_free
		214	};
		215
		216	static int ecb_cold
		217	sysfree_free (pTHX_ SV sv, MAGIC mg)
		218	{
		219	free (mg->mg_ptr);
		220	mg->mg_obj = 0; /* just in case */
		221
		222	SvREADONLY_off (sv);
		223
		224	if (SvPVX (sv) != mg->mg_ptr)
		225	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		226
		227	SvCUR_set (sv, 0);
		228	SvPVX (sv) = 0;
		229	SvOK_off (sv);
		230
		231	return 0;
		232	}
		233
		234	static MGVTBL sysfree_vtbl = {
		235	0, 0, 0, 0, sysfree_free
		236	};
		237
		238	/*****************************************************************************/
		239
		240	/* helper: set scalar to foreign ptr with custom free */
		241	static void
		242	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		243	{
		244	sv_force_normal (sv);
		245
		246	/* we store the length in mg_obj, as namlen is I32 :/ */
		247	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		248	->mg_obj = (SV *)length;
		249
		250	SvUPGRADE (sv, SVt_PV); /* nop... */
		251
		252	if (SvLEN (sv))
		253	Safefree (SvPVX (sv));
		254
		255	SvPVX (sv) = (char *)addr;
		256	SvCUR_set (sv, length);
		257	SvLEN_set (sv, 0);
		258	SvPOK_only (sv);
		259	}
		260
		261	static void
		262	sv_clear_foreign (SV *sv)
		263	{
		264	/* todo: iterate over magic and only free ours, but of course */
		265	/* the perl5porters will call that (correct) behaviour buggy */
		266	sv_unmagic (sv, FOREIGN_MAGIC);
		267	}
166		268
167	/*****************************************************************************/	269	/*****************************************************************************/
168		270
169	static void	271	static void
170	fiemap (eio_req *req)	272	fiemap (eio_req *req)
…		…
590	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	693	PUSHs (sv_result);
592	}	694	}
593	break;	695	break;
594		696
		697	case EIO_SLURP:
		698	{
		699	if (req->result >= 0)
		700	{
		701	/* if length was originally not known, we steal the malloc'ed memory */
		702	if (req->flags & EIO_FLAG_PTR2_FREE)
		703	{
		704	req->flags &= ~EIO_FLAG_PTR2_FREE;
		705	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		706	}
		707	else
		708	{
		709	SvCUR_set (req->sv2, req->result);
		710	*SvEND (req->sv2) = 0;
		711	SvPOK_only (req->sv2);
		712	}
		713
		714	SvSETMAGIC (req->sv2);
		715	}
		716
		717	PUSHs (sv_result);
		718	}
		719	break;
		720
595	case EIO_CUSTOM:	721	case EIO_CUSTOM:
596	if (req->feed == fiemap)	722	if (req->feed == fiemap)
597	{	723	{
598	#if HAVE_FIEMAP	724	#if HAVE_FIEMAP
599	if (!req->result)	725	if (!req->result)
…		…
742	create_respipe ();	868	create_respipe ();
743		869
744	if (eio_init (want_poll, done_poll) < 0)	870	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	871	croak ("IO::AIO: unable to initialise eio library");
746	}	872	}
747
748	/*****************************************************************************/
749
750	#if !_POSIX_MAPPED_FILES
751	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752	# define munmap(addr,length) EIO_ENOSYS ()
753	#endif
754
755	#if !_POSIX_MEMORY_PROTECTION
756	# define mprotect(addr,len,prot) EIO_ENOSYS ()
757	#endif
758
759	#define MMAP_MAGIC PERL_MAGIC_ext
760
761	static int ecb_cold
762	mmap_free (pTHX_ SV sv, MAGIC mg)
763	{
764	int old_errno = errno;
765	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766	errno = old_errno;
767
768	mg->mg_obj = 0; /* just in case */
769
770	SvREADONLY_off (sv);
771
772	if (SvPVX (sv) != mg->mg_ptr)
773	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775	SvCUR_set (sv, 0);
776	SvPVX (sv) = 0;
777	SvOK_off (sv);
778
779	return 0;
780	}
781
782	static MGVTBL mmap_vtbl = {
783	0, 0, 0, 0, mmap_free
784	};
785		873
786	/*****************************************************************************/	874	/*****************************************************************************/
787		875
788	static SV *	876	static SV *
789	get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
…		…
994	const_iv (MAP_GROWSDOWN)	1082	const_iv (MAP_GROWSDOWN)
995	const_iv (MAP_32BIT)	1083	const_iv (MAP_32BIT)
996	const_iv (MAP_HUGETLB)	1084	const_iv (MAP_HUGETLB)
997	const_iv (MAP_STACK)	1085	const_iv (MAP_STACK)
998		1086
		1087	const_iv (F_DUPFD_CLOEXEC)
		1088
		1089	const_iv (F_OFD_GETLK)
		1090	const_iv (F_OFD_SETLK)
		1091	const_iv (F_OFD_GETLKW)
		1092
		1093	const_iv (FIFREEZE)
		1094	const_iv (FITHAW)
		1095	const_iv (FITRIM)
		1096	const_iv (FICLONE)
		1097	const_iv (FICLONERANGE)
		1098	const_iv (FIDEDUPERANGE)
		1099
		1100	const_iv (FS_IOC_GETFLAGS)
		1101	const_iv (FS_IOC_SETFLAGS)
		1102	const_iv (FS_IOC_GETVERSION)
		1103	const_iv (FS_IOC_SETVERSION)
		1104	const_iv (FS_IOC_FIEMAP)
		1105	const_iv (FS_IOC_FSGETXATTR)
		1106	const_iv (FS_IOC_FSSETXATTR)
		1107	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1108	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1109	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1110
		1111	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1112
		1113	const_iv (FS_SECRM_FL)
		1114	const_iv (FS_UNRM_FL)
		1115	const_iv (FS_COMPR_FL)
		1116	const_iv (FS_SYNC_FL)
		1117	const_iv (FS_IMMUTABLE_FL)
		1118	const_iv (FS_APPEND_FL)
		1119	const_iv (FS_NODUMP_FL)
		1120	const_iv (FS_NOATIME_FL)
		1121	const_iv (FS_DIRTY_FL)
		1122	const_iv (FS_COMPRBLK_FL)
		1123	const_iv (FS_NOCOMP_FL)
		1124	const_iv (FS_ENCRYPT_FL)
		1125	const_iv (FS_BTREE_FL)
		1126	const_iv (FS_INDEX_FL)
		1127	const_iv (FS_JOURNAL_DATA_FL)
		1128	const_iv (FS_NOTAIL_FL)
		1129	const_iv (FS_DIRSYNC_FL)
		1130	const_iv (FS_TOPDIR_FL)
		1131	const_iv (FS_FL_USER_MODIFIABLE)
		1132
		1133	const_iv (FS_XFLAG_REALTIME)
		1134	const_iv (FS_XFLAG_PREALLOC)
		1135	const_iv (FS_XFLAG_IMMUTABLE)
		1136	const_iv (FS_XFLAG_APPEND)
		1137	const_iv (FS_XFLAG_SYNC)
		1138	const_iv (FS_XFLAG_NOATIME)
		1139	const_iv (FS_XFLAG_NODUMP)
		1140	const_iv (FS_XFLAG_RTINHERIT)
		1141	const_iv (FS_XFLAG_PROJINHERIT)
		1142	const_iv (FS_XFLAG_NOSYMLINKS)
		1143	const_iv (FS_XFLAG_EXTSIZE)
		1144	const_iv (FS_XFLAG_EXTSZINHERIT)
		1145	const_iv (FS_XFLAG_NODEFRAG)
		1146	const_iv (FS_XFLAG_FILESTREAM)
		1147	const_iv (FS_XFLAG_DAX)
		1148	const_iv (FS_XFLAG_HASATTR)
		1149
999	const_iv (FIEMAP_FLAG_SYNC)	1150	const_iv (FIEMAP_FLAG_SYNC)
1000	const_iv (FIEMAP_FLAG_XATTR)	1151	const_iv (FIEMAP_FLAG_XATTR)
1001	const_iv (FIEMAP_FLAGS_COMPAT)	1152	const_iv (FIEMAP_FLAGS_COMPAT)
1002	const_iv (FIEMAP_EXTENT_LAST)	1153	const_iv (FIEMAP_EXTENT_LAST)
1003	const_iv (FIEMAP_EXTENT_UNKNOWN)	1154	const_iv (FIEMAP_EXTENT_UNKNOWN)
…		…
1014	const_iv (SPLICE_F_MOVE)	1165	const_iv (SPLICE_F_MOVE)
1015	const_iv (SPLICE_F_NONBLOCK)	1166	const_iv (SPLICE_F_NONBLOCK)
1016	const_iv (SPLICE_F_MORE)	1167	const_iv (SPLICE_F_MORE)
1017	const_iv (SPLICE_F_GIFT)	1168	const_iv (SPLICE_F_GIFT)
1018		1169
		1170	const_iv (EFD_CLOEXEC)
		1171	const_iv (EFD_NONBLOCK)
		1172	const_iv (EFD_SEMAPHORE)
		1173
1019	/* these are libeio constants, and are independent of gendef0 */	1174	/* these are libeio constants, and are independent of gendef0 */
1020	const_eio (SEEK_SET)	1175	const_eio (SEEK_SET)
1021	const_eio (SEEK_CUR)	1176	const_eio (SEEK_CUR)
1022	const_eio (SEEK_END)	1177	const_eio (SEEK_END)
1023		1178
…		…
1036		1191
1037	const_eio (FALLOC_FL_KEEP_SIZE)	1192	const_eio (FALLOC_FL_KEEP_SIZE)
1038	const_eio (FALLOC_FL_PUNCH_HOLE)	1193	const_eio (FALLOC_FL_PUNCH_HOLE)
1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1194	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040	const_eio (FALLOC_FL_ZERO_RANGE)	1195	const_eio (FALLOC_FL_ZERO_RANGE)
		1196	const_eio (FALLOC_FL_INSERT_RANGE)
		1197	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1198
		1199	const_eio (RENAME_NOREPLACE)
		1200	const_eio (RENAME_EXCHANGE)
		1201	const_eio (RENAME_WHITEOUT)
1041		1202
1042	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
1043	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
1044	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
1045	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1316	#else	1477	#else
1317	STRLEN need = 256;	1478	STRLEN need = 256;
1318	#endif	1479	#endif
1319		1480
1320	if (svlen < need)	1481	if (svlen < need)
1321	svptr = SvGROW (arg, need + 1);	1482	svptr = SvGROW (arg, need);
1322	}	1483	}
1323	else	1484	else
1324	svptr = (char *)SvIV (arg);	1485	svptr = (char *)SvIV (arg);
1325		1486
1326	{	1487	{
…		…
1405	UV	1566	UV
1406	major (UV dev)	1567	major (UV dev)
1407	ALIAS:	1568	ALIAS:
1408	minor = 1	1569	minor = 1
1409	CODE:	1570	CODE:
1410	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1411	OUTPUT:	1572	OUTPUT:
1412	RETVAL	1573	RETVAL
1413		1574
1414	UV	1575	UV
1415	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1532		1693
1533	REQ_SEND;	1694	REQ_SEND;
1534	}	1695	}
1535		1696
1536	void	1697	void
		1698	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	eio_wd wd2 = 0;
		1702	dREQ;
		1703
		1704	req->type = EIO_RENAME;
		1705	req_set_path1 (req, oldpath);
		1706	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1707	req->int2 = flags;
		1708	req->int3 = (long)wd2;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
1537	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)	1714	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1538	PPCODE:	1715	PPCODE:
1539	{	1716	{
1540	dREQ;	1717	dREQ;
1541		1718
…		…
1546		1723
1547	REQ_SEND;	1724	REQ_SEND;
1548	}	1725	}
1549		1726
1550	void	1727	void
1551	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1728	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1552	ALIAS:	1729	ALIAS:
1553	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1554	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1555	PPCODE:	1732	PPCODE:
1556	{	1733	{
1557	STRLEN svlen;	1734	STRLEN svlen;
1558	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1559	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1560		1740
1561	if (offset < 0)	1741	if (offset < 0)
1562	offset += svlen;	1742	offset += svlen;
1563		1743
1564	if (offset < 0 \|\| offset > svlen)	1744	if (offset < 0 \|\| offset > svlen)
…		…
1640	req->int2 = flags;	1820	req->int2 = flags;
1641	req->int3 = SvOK (count) ? SvIV (count) : -1;	1821	req->int3 = SvOK (count) ? SvIV (count) : -1;
1642	#endif	1822	#endif
1643		1823
1644	REQ_SEND;	1824	REQ_SEND;
		1825	}
		1826
		1827	void
		1828	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	char *svptr = 0;
		1832
		1833	sv_clear_foreign (data);
		1834
		1835	if (length) /* known length, directly read into scalar */
		1836	{
		1837	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1838	svptr = sv_grow (data, length + 1);
		1839	else if (SvCUR (data) < length)
		1840	croak ("length outside of scalar, and cannot grow");
		1841	else
		1842	svptr = SvPVbyte_nolen (data);
		1843	}
		1844
		1845	{
		1846	dREQ;
		1847
		1848	req->type = EIO_SLURP;
		1849	req_set_path1 (req, pathname);
		1850	req->offs = offset;
		1851	req->size = length;
		1852	req->sv2 = SvREFCNT_inc (data);
		1853	req->ptr2 = svptr;
		1854
		1855	if (!SvREADONLY (data))
		1856	{
		1857	SvREADONLY_on (data);
		1858	req->flags \|= FLAG_SV2_RO_OFF;
		1859	}
		1860
		1861	REQ_SEND;
		1862	}
1645	}	1863	}
1646		1864
1647	void	1865	void
1648	aio_busy (double delay, SV *callback = &PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1649	PPCODE:	1867	PPCODE:
…		…
1786	RETVAL	2004	RETVAL
1787		2005
1788	void	2006	void
1789	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2007	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1790	PPCODE:	2008	PPCODE:
1791	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1792	{	2010	{
1793	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2011	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1794	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2012	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1795	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1796	XSRETURN_NO;	2014	XSRETURN_NO;
1797		2015
1798	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1799
1800	/* we store the length in mg_obj, as namlen is I32 :/ */
1801	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1802	->mg_obj = (SV *)length;
1803
1804	SvUPGRADE (scalar, SVt_PV); /* nop... */
1805		2017
1806	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1807	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1808		2020
1809	if (SvLEN (scalar))
1810	Safefree (SvPVX (scalar));
1811
1812	SvPVX (scalar) = (char *)addr;
1813	SvCUR_set (scalar, length);
1814	SvLEN_set (scalar, 0);
1815	SvPOK_only (scalar);
1816
1817	XSRETURN_YES;	2021	XSRETURN_YES;
1818	}	2022	}
1819		2023
1820	void	2024	void
1821	munmap (SV *scalar)	2025	munmap (SV *scalar)
1822	CODE:	2026	CODE:
1823	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1824		2028
1825	int	2029	int
1826	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2030	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1827	ALIAS:	2031	ALIAS:
1828	mprotect = 1	2032	mprotect = 1
…		…
1958	{	2162	{
1959	EXTEND (SP, 2);	2163	EXTEND (SP, 2);
1960	PUSHs (newmortalFH (fd[0], O_RDONLY));	2164	PUSHs (newmortalFH (fd[0], O_RDONLY));
1961	PUSHs (newmortalFH (fd[1], O_WRONLY));	2165	PUSHs (newmortalFH (fd[1], O_WRONLY));
1962	}	2166	}
		2167	}
		2168
		2169	void
		2170	eventfd (unsigned int initval = 0, int flags = 0)
		2171	PPCODE:
		2172	{
		2173	int fd;
		2174	#if HAVE_EVENTFD
		2175	fd = eventfd (initval, flags);
		2176	#else
		2177	fd = (errno = ENOSYS, -1);
		2178	#endif
		2179
		2180	XPUSHs (newmortalFH (fd, O_RDWR));
		2181	}
		2182
		2183	UV
		2184	get_fdlimit ()
		2185	CODE:
		2186	#if HAVE_RLIMITS
		2187	struct rlimit rl;
		2188	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2189	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2190	#endif
		2191	XSRETURN_UNDEF;
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	void
		2196	min_fdlimit (UV limit = 0x7fffffffU)
		2197	CODE:
		2198	{
		2199	#if HAVE_RLIMITS
		2200	struct rlimit rl;
		2201	rlim_t orig_rlim_max;
		2202	UV bit;
		2203
		2204	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2205	goto fail;
		2206
		2207	if (rl.rlim_cur == RLIM_INFINITY)
		2208	XSRETURN_YES;
		2209
		2210	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2211
		2212	if (rl.rlim_cur < limit)
		2213	{
		2214	rl.rlim_cur = limit;
		2215
		2216	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2217	rl.rlim_max = rl.rlim_cur;
		2218	}
		2219
		2220	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2221	XSRETURN_YES;
		2222
		2223	if (errno == EPERM)
		2224	{
		2225	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2226	/* our limit overflows a system-wide limit */
		2227	/* try an adaptive algorithm, but do not lower the hardlimit */
		2228	rl.rlim_max = 0;
		2229	for (bit = 0x40000000U; bit; bit >>= 1)
		2230	{
		2231	rl.rlim_max \|= bit;
		2232	rl.rlim_cur = rl.rlim_max;
		2233
		2234	/* nevr decrease the hard limit */
		2235	if (rl.rlim_max < orig_rlim_max)
		2236	break;
		2237
		2238	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2239	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2240	}
		2241
		2242	/* now, raise the soft limit to the max permitted */
		2243	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2244	{
		2245	rl.rlim_cur = rl.rlim_max;
		2246	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2247	errno = EPERM;
		2248	}
		2249	}
		2250	#endif
		2251	fail:
		2252	XSRETURN_UNDEF;
1963	}	2253	}
1964		2254
1965	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1966	CODE:	2256	CODE:
1967	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.239 by root, Tue Feb 23 19:42:43 2016 UTC vs. Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.239 by root, Tue Feb 23 19:42:43 2016 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC