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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 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>
…		…
106		108
107	/*****************************************************************************/	109	/*****************************************************************************/
108		110
109	#include "libeio/config.h"	111	#include "libeio/config.h"
110		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
111	#if HAVE_RLIMITS	123	#if HAVE_RLIMITS
112	#include <sys/time.h>	124	#include <sys/time.h>
113	#include <sys/resource.h>	125	#include <sys/resource.h>
114	#endif	126	#endif
115		127
…		…
168	#endif	180	#endif
169		181
170	#if PAGESIZE <= 0	182	#if PAGESIZE <= 0
171	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
172	#endif	184	#endif
		185
		186	/*****************************************************************************/
		187
		188	#if !_POSIX_MAPPED_FILES
		189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV sv, MAGIC mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV sv, MAGIC mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
173		280
174	/*****************************************************************************/	281	/*****************************************************************************/
175		282
176	static void	283	static void
177	fiemap (eio_req *req)	284	fiemap (eio_req *req)
…		…
597	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
598	PUSHs (sv_result);	705	PUSHs (sv_result);
599	}	706	}
600	break;	707	break;
601		708
		709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
602	case EIO_CUSTOM:	733	case EIO_CUSTOM:
603	if (req->feed == fiemap)	734	if (req->feed == fiemap)
604	{	735	{
605	#if HAVE_FIEMAP	736	#if HAVE_FIEMAP
606	if (!req->result)	737	if (!req->result)
…		…
749	create_respipe ();	880	create_respipe ();
750		881
751	if (eio_init (want_poll, done_poll) < 0)	882	if (eio_init (want_poll, done_poll) < 0)
752	croak ("IO::AIO: unable to initialise eio library");	883	croak ("IO::AIO: unable to initialise eio library");
753	}	884	}
754
755	/*****************************************************************************/
756
757	#if !_POSIX_MAPPED_FILES
758	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
759	# define munmap(addr,length) EIO_ENOSYS ()
760	#endif
761
762	#if !_POSIX_MEMORY_PROTECTION
763	# define mprotect(addr,len,prot) EIO_ENOSYS ()
764	#endif
765
766	#define MMAP_MAGIC PERL_MAGIC_ext
767
768	static int ecb_cold
769	mmap_free (pTHX_ SV sv, MAGIC mg)
770	{
771	int old_errno = errno;
772	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
773	errno = old_errno;
774
775	mg->mg_obj = 0; /* just in case */
776
777	SvREADONLY_off (sv);
778
779	if (SvPVX (sv) != mg->mg_ptr)
780	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
781
782	SvCUR_set (sv, 0);
783	SvPVX (sv) = 0;
784	SvOK_off (sv);
785
786	return 0;
787	}
788
789	static MGVTBL mmap_vtbl = {
790	0, 0, 0, 0, mmap_free
791	};
792		885
793	/*****************************************************************************/	886	/*****************************************************************************/
794		887
795	static SV *	888	static SV *
796	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
…		…
892	req_set_path1 (req, fh_or_path);	985	req_set_path1 (req, fh_or_path);
893	break;	986	break;
894	}	987	}
895	}	988	}
896		989
		990	/*****************************************************************************/
		991
		992	static void
		993	ts_set (struct timespec *ts, NV value)
		994	{
		995	ts->tv_sec = value;
		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
897	XS(boot_IO__AIO) ecb_cold;	1007	XS(boot_IO__AIO) ecb_cold;
898		1008
899	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
900		1010
901	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
…		…
932	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
933	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
934	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
935		1045
936	/* the second block will be 0 when missing */	1046	/* the second block will be 0 when missing */
		1047	const_iv (O_ACCMODE)
		1048
937	const_iv (O_RDONLY)	1049	const_iv (O_RDONLY)
938	const_iv (O_WRONLY)	1050	const_iv (O_WRONLY)
939	const_iv (O_RDWR)	1051	const_iv (O_RDWR)
940	const_iv (O_CREAT)	1052	const_iv (O_CREAT)
941	const_iv (O_TRUNC)	1053	const_iv (O_TRUNC)
…		…
1000	const_iv (MAP_NONBLOCK)	1112	const_iv (MAP_NONBLOCK)
1001	const_iv (MAP_GROWSDOWN)	1113	const_iv (MAP_GROWSDOWN)
1002	const_iv (MAP_32BIT)	1114	const_iv (MAP_32BIT)
1003	const_iv (MAP_HUGETLB)	1115	const_iv (MAP_HUGETLB)
1004	const_iv (MAP_STACK)	1116	const_iv (MAP_STACK)
		1117
		1118	const_iv (MREMAP_MAYMOVE)
		1119	const_iv (MREMAP_FIXED)
1005		1120
1006	const_iv (F_DUPFD_CLOEXEC)	1121	const_iv (F_DUPFD_CLOEXEC)
1007		1122
1008	const_iv (F_OFD_GETLK)	1123	const_iv (F_OFD_GETLK)
1009	const_iv (F_OFD_SETLK)	1124	const_iv (F_OFD_SETLK)
…		…
1084	const_iv (SPLICE_F_MOVE)	1199	const_iv (SPLICE_F_MOVE)
1085	const_iv (SPLICE_F_NONBLOCK)	1200	const_iv (SPLICE_F_NONBLOCK)
1086	const_iv (SPLICE_F_MORE)	1201	const_iv (SPLICE_F_MORE)
1087	const_iv (SPLICE_F_GIFT)	1202	const_iv (SPLICE_F_GIFT)
1088		1203
		1204	const_iv (EFD_CLOEXEC)
		1205	const_iv (EFD_NONBLOCK)
		1206	const_iv (EFD_SEMAPHORE)
		1207
		1208	const_iv (CLOCK_REALTIME)
		1209	const_iv (CLOCK_MONOTONIC)
		1210	const_iv (CLOCK_BOOTTIME)
		1211	const_iv (CLOCK_REALTIME_ALARM)
		1212	const_iv (CLOCK_BOOTTIME_ALARM)
		1213
		1214	const_iv (TFD_NONBLOCK)
		1215	const_iv (TFD_CLOEXEC)
		1216
		1217	const_iv (TFD_TIMER_ABSTIME)
		1218	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1219
1089	/* these are libeio constants, and are independent of gendef0 */	1220	/* these are libeio constants, and are independent of gendef0 */
1090	const_eio (SEEK_SET)	1221	const_eio (SEEK_SET)
1091	const_eio (SEEK_CUR)	1222	const_eio (SEEK_CUR)
1092	const_eio (SEEK_END)	1223	const_eio (SEEK_END)
1093		1224
…		…
1738		1869
1739	REQ_SEND;	1870	REQ_SEND;
1740	}	1871	}
1741		1872
1742	void	1873	void
		1874	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1875	PPCODE:
		1876	{
		1877	char *svptr = 0;
		1878
		1879	sv_clear_foreign (data);
		1880
		1881	if (length) /* known length, directly read into scalar */
		1882	{
		1883	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1884	svptr = sv_grow (data, length + 1);
		1885	else if (SvCUR (data) < length)
		1886	croak ("length outside of scalar, and cannot grow");
		1887	else
		1888	svptr = SvPVbyte_nolen (data);
		1889	}
		1890
		1891	{
		1892	dREQ;
		1893
		1894	req->type = EIO_SLURP;
		1895	req_set_path1 (req, pathname);
		1896	req->offs = offset;
		1897	req->size = length;
		1898	req->sv2 = SvREFCNT_inc (data);
		1899	req->ptr2 = svptr;
		1900
		1901	if (!SvREADONLY (data))
		1902	{
		1903	SvREADONLY_on (data);
		1904	req->flags \|= FLAG_SV2_RO_OFF;
		1905	}
		1906
		1907	REQ_SEND;
		1908	}
		1909	}
		1910
		1911	void
1743	aio_busy (double delay, SV *callback = &PL_sv_undef)	1912	aio_busy (double delay, SV *callback = &PL_sv_undef)
1744	PPCODE:	1913	PPCODE:
1745	{	1914	{
1746	dREQ;	1915	dREQ;
1747		1916
…		…
1881	RETVAL	2050	RETVAL
1882		2051
1883	void	2052	void
1884	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2053	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1885	PPCODE:	2054	PPCODE:
1886	sv_unmagic (scalar, MMAP_MAGIC);	2055	sv_clear_foreign (scalar);
1887	{	2056	{
1888	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2057	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1889	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2058	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1890	if (addr == (void *)-1)	2059	if (addr == (void *)-1)
1891	XSRETURN_NO;	2060	XSRETURN_NO;
1892		2061
1893	sv_force_normal (scalar);	2062	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1894
1895	/* we store the length in mg_obj, as namlen is I32 :/ */
1896	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1897	->mg_obj = (SV *)length;
1898
1899	SvUPGRADE (scalar, SVt_PV); /* nop... */
1900		2063
1901	if (!(prot & PROT_WRITE))	2064	if (!(prot & PROT_WRITE))
1902	SvREADONLY_on (scalar);	2065	SvREADONLY_on (scalar);
1903		2066
1904	if (SvLEN (scalar))
1905	Safefree (SvPVX (scalar));
1906
1907	SvPVX (scalar) = (char *)addr;
1908	SvCUR_set (scalar, length);
1909	SvLEN_set (scalar, 0);
1910	SvPOK_only (scalar);
1911
1912	XSRETURN_YES;	2067	XSRETURN_YES;
1913	}	2068	}
1914		2069
1915	void	2070	void
1916	munmap (SV *scalar)	2071	munmap (SV *scalar)
1917	CODE:	2072	CODE:
1918	sv_unmagic (scalar, MMAP_MAGIC);	2073	sv_clear_foreign (scalar);
		2074
		2075	SV *
		2076	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2077	CODE:
		2078	{
		2079	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2080	void *new;
		2081
		2082	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2083	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2084
		2085	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2086
		2087	RETVAL = &PL_sv_no;
		2088
		2089	if (new != (void *)-1)
		2090	{
		2091	RETVAL = new == (void *)mg->mg_ptr
		2092	? newSVpvn ("0 but true", 10)
		2093	: &PL_sv_yes;
		2094
		2095	mg->mg_ptr = (char *)new;
		2096	mg->mg_obj = (SV *)new_length;
		2097
		2098	SvPVX (scalar) = mg->mg_ptr;
		2099	SvCUR_set (scalar, new_length);
		2100	}
		2101	}
		2102	OUTPUT:
		2103	RETVAL
1919		2104
1920	int	2105	int
1921	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2106	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1922	ALIAS:	2107	ALIAS:
1923	mprotect = 1	2108	mprotect = 1
…		…
2053	{	2238	{
2054	EXTEND (SP, 2);	2239	EXTEND (SP, 2);
2055	PUSHs (newmortalFH (fd[0], O_RDONLY));	2240	PUSHs (newmortalFH (fd[0], O_RDONLY));
2056	PUSHs (newmortalFH (fd[1], O_WRONLY));	2241	PUSHs (newmortalFH (fd[1], O_WRONLY));
2057	}	2242	}
		2243	}
		2244
		2245	void
		2246	eventfd (unsigned int initval = 0, int flags = 0)
		2247	PPCODE:
		2248	{
		2249	int fd;
		2250	#if HAVE_EVENTFD
		2251	fd = eventfd (initval, flags);
		2252	#else
		2253	fd = (errno = ENOSYS, -1);
		2254	#endif
		2255
		2256	XPUSHs (newmortalFH (fd, O_RDWR));
		2257	}
		2258
		2259	void
		2260	timerfd_create (int clockid, int flags = 0)
		2261	PPCODE:
		2262	{
		2263	int fd;
		2264	#if HAVE_TIMERFD
		2265	fd = timerfd_create (clockid, flags);
		2266	#else
		2267	fd = (errno = ENOSYS, -1);
		2268	#endif
		2269
		2270	XPUSHs (newmortalFH (fd, O_RDWR));
		2271	}
		2272
		2273	void
		2274	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2275	PPCODE:
		2276	{
		2277	int fd = s_fileno_croak (fh, 0);
		2278	#if HAVE_TIMERFD
		2279	int res;
		2280	struct itimerspec its, ots;
		2281
		2282	ts_set (&its.it_interval, interval);
		2283	ts_set (&its.it_value , value);
		2284	res = timerfd_settime (fd, flags, &its, &ots);
		2285
		2286	if (!res)
		2287	{
		2288	EXTEND (SP, 2);
		2289	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2290	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2291	}
		2292	#else
		2293	errno = ENOSYS;
		2294	#endif
		2295	}
		2296
		2297	void
		2298	timerfd_gettime (SV *fh)
		2299	PPCODE:
		2300	{
		2301	int fd = s_fileno_croak (fh, 0);
		2302	#if HAVE_TIMERFD
		2303	int res;
		2304	struct itimerspec ots;
		2305	res = timerfd_gettime (fd, &ots);
		2306
		2307	if (!res)
		2308	{
		2309	EXTEND (SP, 2);
		2310	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2311	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2312	}
		2313	#else
		2314	errno = ENOSYS;
		2315	#endif
2058	}	2316	}
2059		2317
2060	UV	2318	UV
2061	get_fdlimit ()	2319	get_fdlimit ()
2062	CODE:	2320	CODE:

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs. Revision 1.259 by root, Sun Jul 22 20:39:19 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 2018 UTC