[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 1.261 by root, Tue Jul 24 19:32:20 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>
19		22
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
106		109
107	/*****************************************************************************/	110	/*****************************************************************************/
108		111
		112	#include "libeio/config.h"
		113
		114	#include "schmorp.h"
		115
		116	#if HAVE_EVENTFD
		117	# include <sys/eventfd.h>
		118	#endif
		119
		120	#if HAVE_TIMERFD
		121	# include <sys/timerfd.h>
		122	#endif
		123
		124	#if HAVE_RLIMITS
		125	#include <sys/time.h>
		126	#include <sys/resource.h>
		127	#endif
		128
109	typedef SV SV8; /* byte-sv, used for argument-checking */	129	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	130	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	131	typedef int aio_wfd; /* write file descriptor */
112		132
113	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	133	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
119	STRLEN stroffset; \	139	STRLEN stroffset; \
120	SV *self;	140	SV *self;
121		141
122	#define EIO_NO_WRAPPERS 1	142	#define EIO_NO_WRAPPERS 1
123		143
124	#include "libeio/config.h"
125	#include "libeio/eio.h"	144	#include "libeio/eio.h"
126		145
127	static int req_invoke (eio_req *req);	146	static int req_invoke (eio_req *req);
128	#define EIO_FINISH(req) req_invoke (req)	147	#define EIO_FINISH(req) req_invoke (req)
129	static void req_destroy (eio_req *grp);	148	static void req_destroy (eio_req *grp);
…		…
145	# else	164	# else
146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	165	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147	# endif	166	# endif
148	#endif	167	#endif
149		168
		169	#ifndef makedev
		170	# define makedev(maj,min) (((maj) << 8) \| (min))
		171	#endif
		172	#ifndef major
		173	# define major(dev) ((dev) >> 8)
		174	#endif
		175	#ifndef minor
		176	# define minor(dev) ((dev) & 0xff)
		177	#endif
		178
		179	#if PAGESIZE <= 0
		180	# define PAGESIZE sysconf (_SC_PAGESIZE)
		181	#endif
		182
		183	/*****************************************************************************/
		184
		185	#if !_POSIX_MAPPED_FILES
		186	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		187	# define munmap(addr,length) EIO_ENOSYS ()
		188	#endif
		189
		190	#if !_POSIX_MEMORY_PROTECTION
		191	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		192	#endif
		193
		194	#if !MREMAP_MAYMOVE
		195	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		196	#endif
		197
		198	#define FOREIGN_MAGIC PERL_MAGIC_ext
		199
		200	static int ecb_cold
		201	mmap_free (pTHX_ SV sv, MAGIC mg)
		202	{
		203	int old_errno = errno;
		204	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		205	errno = old_errno;
		206
		207	mg->mg_obj = 0; /* just in case */
		208
		209	SvREADONLY_off (sv);
		210
		211	if (SvPVX (sv) != mg->mg_ptr)
		212	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		213
		214	SvCUR_set (sv, 0);
		215	SvPVX (sv) = 0;
		216	SvOK_off (sv);
		217
		218	return 0;
		219	}
		220
		221	static MGVTBL mmap_vtbl = {
		222	0, 0, 0, 0, mmap_free
		223	};
		224
		225	static int ecb_cold
		226	sysfree_free (pTHX_ SV sv, MAGIC mg)
		227	{
		228	free (mg->mg_ptr);
		229	mg->mg_obj = 0; /* just in case */
		230
		231	SvREADONLY_off (sv);
		232
		233	if (SvPVX (sv) != mg->mg_ptr)
		234	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		235
		236	SvCUR_set (sv, 0);
		237	SvPVX (sv) = 0;
		238	SvOK_off (sv);
		239
		240	return 0;
		241	}
		242
		243	static MGVTBL sysfree_vtbl = {
		244	0, 0, 0, 0, sysfree_free
		245	};
		246
		247	/*****************************************************************************/
		248
		249	/* helper: set scalar to foreign ptr with custom free */
		250	static void
		251	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		252	{
		253	sv_force_normal (sv);
		254
		255	/* we store the length in mg_obj, as namlen is I32 :/ */
		256	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		257	->mg_obj = (SV *)length;
		258
		259	SvUPGRADE (sv, SVt_PV); /* nop... */
		260
		261	if (SvLEN (sv))
		262	Safefree (SvPVX (sv));
		263
		264	SvPVX (sv) = (char *)addr;
		265	SvCUR_set (sv, length);
		266	SvLEN_set (sv, 0);
		267	SvPOK_only (sv);
		268	}
		269
		270	static void
		271	sv_clear_foreign (SV *sv)
		272	{
		273	/* todo: iterate over magic and only free ours, but of course */
		274	/* the perl5porters will call that (correct) behaviour buggy */
		275	sv_unmagic (sv, FOREIGN_MAGIC);
		276	}
		277
		278	/*****************************************************************************/
		279
150	/* defines all sorts of constants to 0 unless they are already defined */	280	/* defines all sorts of constants to 0 unless they are already defined */
151	/* also provides const_iv_ and const_niv_ macros for them */	281	/* also provides const_iv_ and const_niv_ macros for them */
152	#include "def0.h"	282	#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		283
168	/*****************************************************************************/	284	/*****************************************************************************/
169		285
170	static void	286	static void
171	fiemap (eio_req *req)	287	fiemap (eio_req *req)
…		…
591	SvSETMAGIC (req->sv2);	707	SvSETMAGIC (req->sv2);
592	PUSHs (sv_result);	708	PUSHs (sv_result);
593	}	709	}
594	break;	710	break;
595		711
		712	case EIO_SLURP:
		713	{
		714	if (req->result >= 0)
		715	{
		716	/* if length was originally not known, we steal the malloc'ed memory */
		717	if (req->flags & EIO_FLAG_PTR2_FREE)
		718	{
		719	req->flags &= ~EIO_FLAG_PTR2_FREE;
		720	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		721	}
		722	else
		723	{
		724	SvCUR_set (req->sv2, req->result);
		725	*SvEND (req->sv2) = 0;
		726	SvPOK_only (req->sv2);
		727	}
		728
		729	SvSETMAGIC (req->sv2);
		730	}
		731
		732	PUSHs (sv_result);
		733	}
		734	break;
		735
596	case EIO_CUSTOM:	736	case EIO_CUSTOM:
597	if (req->feed == fiemap)	737	if (req->feed == fiemap)
598	{	738	{
599	#if HAVE_FIEMAP	739	#if HAVE_FIEMAP
600	if (!req->result)	740	if (!req->result)
…		…
743	create_respipe ();	883	create_respipe ();
744		884
745	if (eio_init (want_poll, done_poll) < 0)	885	if (eio_init (want_poll, done_poll) < 0)
746	croak ("IO::AIO: unable to initialise eio library");	886	croak ("IO::AIO: unable to initialise eio library");
747	}	887	}
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		888
787	/*****************************************************************************/	889	/*****************************************************************************/
788		890
789	static SV *	891	static SV *
790	get_cb (SV *cb_sv)	892	get_cb (SV *cb_sv)
…		…
886	req_set_path1 (req, fh_or_path);	988	req_set_path1 (req, fh_or_path);
887	break;	989	break;
888	}	990	}
889	}	991	}
890		992
		993	/*****************************************************************************/
		994
		995	static void
		996	ts_set (struct timespec *ts, NV value)
		997	{
		998	ts->tv_sec = value;
		999	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1000	}
		1001
		1002	static NV
		1003	ts_get (const struct timespec *ts)
		1004	{
		1005	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1006	}
		1007
		1008	/*****************************************************************************/
		1009
891	XS(boot_IO__AIO) ecb_cold;	1010	XS(boot_IO__AIO) ecb_cold;
892		1011
893	MODULE = IO::AIO PACKAGE = IO::AIO	1012	MODULE = IO::AIO PACKAGE = IO::AIO
894		1013
895	PROTOTYPES: ENABLE	1014	PROTOTYPES: ENABLE
…		…
926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1045	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1046	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1047	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929		1048
930	/* the second block will be 0 when missing */	1049	/* the second block will be 0 when missing */
		1050	const_iv (O_ACCMODE)
		1051
931	const_iv (O_RDONLY)	1052	const_iv (O_RDONLY)
932	const_iv (O_WRONLY)	1053	const_iv (O_WRONLY)
933	const_iv (O_RDWR)	1054	const_iv (O_RDWR)
934	const_iv (O_CREAT)	1055	const_iv (O_CREAT)
935	const_iv (O_TRUNC)	1056	const_iv (O_TRUNC)
…		…
995	const_iv (MAP_GROWSDOWN)	1116	const_iv (MAP_GROWSDOWN)
996	const_iv (MAP_32BIT)	1117	const_iv (MAP_32BIT)
997	const_iv (MAP_HUGETLB)	1118	const_iv (MAP_HUGETLB)
998	const_iv (MAP_STACK)	1119	const_iv (MAP_STACK)
999		1120
		1121	const_iv (MREMAP_MAYMOVE)
		1122	const_iv (MREMAP_FIXED)
		1123
1000	const_iv (F_DUPFD_CLOEXEC)	1124	const_iv (F_DUPFD_CLOEXEC)
		1125
		1126	const_iv (MSG_CMSG_CLOEXEC)
		1127	const_iv (SOCK_CLOEXEC)
1001		1128
1002	const_iv (F_OFD_GETLK)	1129	const_iv (F_OFD_GETLK)
1003	const_iv (F_OFD_SETLK)	1130	const_iv (F_OFD_SETLK)
1004	const_iv (F_OFD_GETLKW)	1131	const_iv (F_OFD_GETLKW)
1005		1132
…		…
1078	const_iv (SPLICE_F_MOVE)	1205	const_iv (SPLICE_F_MOVE)
1079	const_iv (SPLICE_F_NONBLOCK)	1206	const_iv (SPLICE_F_NONBLOCK)
1080	const_iv (SPLICE_F_MORE)	1207	const_iv (SPLICE_F_MORE)
1081	const_iv (SPLICE_F_GIFT)	1208	const_iv (SPLICE_F_GIFT)
1082		1209
		1210	const_iv (EFD_CLOEXEC)
		1211	const_iv (EFD_NONBLOCK)
		1212	const_iv (EFD_SEMAPHORE)
		1213
		1214	const_iv (CLOCK_REALTIME)
		1215	const_iv (CLOCK_MONOTONIC)
		1216	const_iv (CLOCK_BOOTTIME)
		1217	const_iv (CLOCK_REALTIME_ALARM)
		1218	const_iv (CLOCK_BOOTTIME_ALARM)
		1219
		1220	const_iv (TFD_NONBLOCK)
		1221	const_iv (TFD_CLOEXEC)
		1222
		1223	const_iv (TFD_TIMER_ABSTIME)
		1224	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1225
1083	/* these are libeio constants, and are independent of gendef0 */	1226	/* these are libeio constants, and are independent of gendef0 */
1084	const_eio (SEEK_SET)	1227	const_eio (SEEK_SET)
1085	const_eio (SEEK_CUR)	1228	const_eio (SEEK_CUR)
1086	const_eio (SEEK_END)	1229	const_eio (SEEK_END)
1087		1230
…		…
1100		1243
1101	const_eio (FALLOC_FL_KEEP_SIZE)	1244	const_eio (FALLOC_FL_KEEP_SIZE)
1102	const_eio (FALLOC_FL_PUNCH_HOLE)	1245	const_eio (FALLOC_FL_PUNCH_HOLE)
1103	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1246	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1104	const_eio (FALLOC_FL_ZERO_RANGE)	1247	const_eio (FALLOC_FL_ZERO_RANGE)
1105	const_eio (FALLOC_FL_INSET_RANGE)	1248	const_eio (FALLOC_FL_INSERT_RANGE)
1106	const_eio (FALLOC_FL_UNSHARE_RANGE)	1249	const_eio (FALLOC_FL_UNSHARE_RANGE)
1107		1250
1108	const_eio (RENAME_NOREPLACE)	1251	const_eio (RENAME_NOREPLACE)
1109	const_eio (RENAME_EXCHANGE)	1252	const_eio (RENAME_EXCHANGE)
1110	const_eio (RENAME_WHITEOUT)	1253	const_eio (RENAME_WHITEOUT)
…		…
1732		1875
1733	REQ_SEND;	1876	REQ_SEND;
1734	}	1877	}
1735		1878
1736	void	1879	void
		1880	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1881	PPCODE:
		1882	{
		1883	char *svptr = 0;
		1884
		1885	sv_clear_foreign (data);
		1886
		1887	if (length) /* known length, directly read into scalar */
		1888	{
		1889	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1890	svptr = sv_grow (data, length + 1);
		1891	else if (SvCUR (data) < length)
		1892	croak ("length outside of scalar, and cannot grow");
		1893	else
		1894	svptr = SvPVbyte_nolen (data);
		1895	}
		1896
		1897	{
		1898	dREQ;
		1899
		1900	req->type = EIO_SLURP;
		1901	req_set_path1 (req, pathname);
		1902	req->offs = offset;
		1903	req->size = length;
		1904	req->sv2 = SvREFCNT_inc (data);
		1905	req->ptr2 = svptr;
		1906
		1907	if (!SvREADONLY (data))
		1908	{
		1909	SvREADONLY_on (data);
		1910	req->flags \|= FLAG_SV2_RO_OFF;
		1911	}
		1912
		1913	REQ_SEND;
		1914	}
		1915	}
		1916
		1917	void
1737	aio_busy (double delay, SV *callback = &PL_sv_undef)	1918	aio_busy (double delay, SV *callback = &PL_sv_undef)
1738	PPCODE:	1919	PPCODE:
1739	{	1920	{
1740	dREQ;	1921	dREQ;
1741		1922
…		…
1875	RETVAL	2056	RETVAL
1876		2057
1877	void	2058	void
1878	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2059	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1879	PPCODE:	2060	PPCODE:
1880	sv_unmagic (scalar, MMAP_MAGIC);	2061	sv_clear_foreign (scalar);
1881	{	2062	{
1882	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2063	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2064	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1884	if (addr == (void *)-1)	2065	if (addr == (void *)-1)
1885	XSRETURN_NO;	2066	XSRETURN_NO;
1886		2067
1887	sv_force_normal (scalar);	2068	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		2069
1895	if (!(prot & PROT_WRITE))	2070	if (!(prot & PROT_WRITE))
1896	SvREADONLY_on (scalar);	2071	SvREADONLY_on (scalar);
1897		2072
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;	2073	XSRETURN_YES;
1907	}	2074	}
1908		2075
1909	void	2076	void
1910	munmap (SV *scalar)	2077	munmap (SV *scalar)
1911	CODE:	2078	CODE:
1912	sv_unmagic (scalar, MMAP_MAGIC);	2079	sv_clear_foreign (scalar);
		2080
		2081	SV *
		2082	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2083	CODE:
		2084	{
		2085	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2086	void *new;
		2087
		2088	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2089	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2090
		2091	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2092
		2093	RETVAL = &PL_sv_no;
		2094
		2095	if (new != (void *)-1)
		2096	{
		2097	RETVAL = new == (void *)mg->mg_ptr
		2098	? newSVpvn ("0 but true", 10)
		2099	: &PL_sv_yes;
		2100
		2101	mg->mg_ptr = (char *)new;
		2102	mg->mg_obj = (SV *)new_length;
		2103
		2104	SvPVX (scalar) = mg->mg_ptr;
		2105	SvCUR_set (scalar, new_length);
		2106	}
		2107	}
		2108	OUTPUT:
		2109	RETVAL
1913		2110
1914	int	2111	int
1915	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2112	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1916	ALIAS:	2113	ALIAS:
1917	mprotect = 1	2114	mprotect = 1
…		…
2047	{	2244	{
2048	EXTEND (SP, 2);	2245	EXTEND (SP, 2);
2049	PUSHs (newmortalFH (fd[0], O_RDONLY));	2246	PUSHs (newmortalFH (fd[0], O_RDONLY));
2050	PUSHs (newmortalFH (fd[1], O_WRONLY));	2247	PUSHs (newmortalFH (fd[1], O_WRONLY));
2051	}	2248	}
		2249	}
		2250
		2251	void
		2252	eventfd (unsigned int initval = 0, int flags = 0)
		2253	PPCODE:
		2254	{
		2255	int fd;
		2256	#if HAVE_EVENTFD
		2257	fd = eventfd (initval, flags);
		2258	#else
		2259	fd = (errno = ENOSYS, -1);
		2260	#endif
		2261
		2262	XPUSHs (newmortalFH (fd, O_RDWR));
		2263	}
		2264
		2265	void
		2266	timerfd_create (int clockid, int flags = 0)
		2267	PPCODE:
		2268	{
		2269	int fd;
		2270	#if HAVE_TIMERFD
		2271	fd = timerfd_create (clockid, flags);
		2272	#else
		2273	fd = (errno = ENOSYS, -1);
		2274	#endif
		2275
		2276	XPUSHs (newmortalFH (fd, O_RDWR));
		2277	}
		2278
		2279	void
		2280	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2281	PPCODE:
		2282	{
		2283	int fd = s_fileno_croak (fh, 0);
		2284	#if HAVE_TIMERFD
		2285	int res;
		2286	struct itimerspec its, ots;
		2287
		2288	ts_set (&its.it_interval, interval);
		2289	ts_set (&its.it_value , value);
		2290	res = timerfd_settime (fd, flags, &its, &ots);
		2291
		2292	if (!res)
		2293	{
		2294	EXTEND (SP, 2);
		2295	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2296	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2297	}
		2298	#else
		2299	errno = ENOSYS;
		2300	#endif
		2301	}
		2302
		2303	void
		2304	timerfd_gettime (SV *fh)
		2305	PPCODE:
		2306	{
		2307	int fd = s_fileno_croak (fh, 0);
		2308	#if HAVE_TIMERFD
		2309	int res;
		2310	struct itimerspec ots;
		2311	res = timerfd_gettime (fd, &ots);
		2312
		2313	if (!res)
		2314	{
		2315	EXTEND (SP, 2);
		2316	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2317	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2318	}
		2319	#else
		2320	errno = ENOSYS;
		2321	#endif
		2322	}
		2323
		2324	UV
		2325	get_fdlimit ()
		2326	CODE:
		2327	#if HAVE_RLIMITS
		2328	struct rlimit rl;
		2329	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2330	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2331	#endif
		2332	XSRETURN_UNDEF;
		2333	OUTPUT:
		2334	RETVAL
		2335
		2336	void
		2337	min_fdlimit (UV limit = 0x7fffffffU)
		2338	CODE:
		2339	{
		2340	#if HAVE_RLIMITS
		2341	struct rlimit rl;
		2342	rlim_t orig_rlim_max;
		2343	UV bit;
		2344
		2345	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2346	goto fail;
		2347
		2348	if (rl.rlim_cur == RLIM_INFINITY)
		2349	XSRETURN_YES;
		2350
		2351	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2352
		2353	if (rl.rlim_cur < limit)
		2354	{
		2355	rl.rlim_cur = limit;
		2356
		2357	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2358	rl.rlim_max = rl.rlim_cur;
		2359	}
		2360
		2361	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2362	XSRETURN_YES;
		2363
		2364	if (errno == EPERM)
		2365	{
		2366	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2367	/* our limit overflows a system-wide limit */
		2368	/* try an adaptive algorithm, but do not lower the hardlimit */
		2369	rl.rlim_max = 0;
		2370	for (bit = 0x40000000U; bit; bit >>= 1)
		2371	{
		2372	rl.rlim_max \|= bit;
		2373	rl.rlim_cur = rl.rlim_max;
		2374
		2375	/* nevr decrease the hard limit */
		2376	if (rl.rlim_max < orig_rlim_max)
		2377	break;
		2378
		2379	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2380	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2381	}
		2382
		2383	/* now, raise the soft limit to the max permitted */
		2384	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2385	{
		2386	rl.rlim_cur = rl.rlim_max;
		2387	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2388	errno = EPERM;
		2389	}
		2390	}
		2391	#endif
		2392	fail:
		2393	XSRETURN_UNDEF;
2052	}	2394	}
2053		2395
2054	void _on_next_submit (SV *cb)	2396	void _on_next_submit (SV *cb)
2055	CODE:	2397	CODE:
2056	SvREFCNT_dec (on_next_submit);	2398	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 1.261 by root, Tue Jul 24 19:32:20 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 1.261 by root, Tue Jul 24 19:32:20 2018 UTC