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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.246 by root, Fri Jun 23 21:43:51 2017 UTC vs.
Revision 1.273 by root, Mon Mar 4 10:28:38 2019 UTC

… …
3#include <errno.h> 3#include <errno.h>
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#include "perliol.h"
8 9
9#include "schmorp.h" 10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
10 13
11#include <stddef.h> 14#include <stddef.h>
12#include <stdlib.h> 15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
15#include <sys/stat.h> 19#include <sys/stat.h>
16#include <limits.h> 20#include <limits.h>
17#include <fcntl.h> 21#include <fcntl.h>
18#include <sched.h> 22#include <sched.h>
19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
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. don't complain to me if this fails 26 * for his broken iplementation. don't complain to me if this fails
27 * for you. 27 * for you.
… …
75 #undef fchmod 75 #undef fchmod
76 #undef dup 76 #undef dup
77 #undef dup2 77 #undef dup2
78 #undef abort 78 #undef abort
79 #undef pipe 79 #undef pipe
80 #undef utime
80 81
81 #define EIO_STRUCT_STAT struct _stati64 82 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64 83 #define EIO_STRUCT_STATI64
83 84
84#else 85#else
… …
103 104
104#define expect_false(expr) expect ((expr) != 0, 0) 105#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1) 106#define expect_true(expr) expect ((expr) != 0, 1)
106 107
107/*****************************************************************************/ 108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_ST_XTIMENSEC
123# define ATIMENSEC PL_statcache.st_atimensec
124# define MTIMENSEC PL_statcache.st_mtimensec
125# define CTIMENSEC PL_statcache.st_ctimensec
126#elif HAVE_ST_XTIMESPEC
127# define ATIMENSEC PL_statcache.st_atim.tv_nsec
128# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
129# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
130#else
131# define ATIMENSEC 0
132# define MTIMENSEC 0
133# define CTIMENSEC 0
134#endif
135
136#if HAVE_ST_BIRTHTIMENSEC
137# define BTIMESEC PL_statcache.st_birthtime
138# define BTIMENSEC PL_statcache.st_birthtimensec
139#elif HAVE_ST_BIRTHTIMESPEC
140# define BTIMESEC PL_statcache.st_birthtim.tv_sec
141# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
142#else
143# define BTIMESEC 0
144# define BTIMENSEC 0
145#endif
146
147#if HAVE_ST_GEN
148# define ST_GEN PL_statcache.st_gen
149#else
150# define ST_GEN 0
151#endif
152
153#include "schmorp.h"
154
155#if HAVE_EVENTFD
156# include <sys/eventfd.h>
157#endif
158
159#if HAVE_TIMERFD
160# include <sys/timerfd.h>
161#endif
162
163#if HAVE_RLIMITS
164 #include <sys/time.h>
165 #include <sys/resource.h>
166#endif
108 167
109typedef SV SV8; /* byte-sv, used for argument-checking */ 168typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */ 169typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */ 170typedef int aio_wfd; /* write file descriptor */
112 171
… …
119 STRLEN stroffset; \ 178 STRLEN stroffset; \
120 SV *self; 179 SV *self;
121 180
122#define EIO_NO_WRAPPERS 1 181#define EIO_NO_WRAPPERS 1
123 182
124#include "libeio/config.h"
125#include "libeio/eio.h" 183#include "libeio/eio.h"
126 184
127static int req_invoke (eio_req *req); 185static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req) 186#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp); 187static void req_destroy (eio_req *grp);
… …
145# else 203# else
146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 204# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
147# endif 205# endif
148#endif 206#endif
149 207
208#ifndef makedev
209# define makedev(maj,min) (((maj) << 8) | (min))
210#endif
211#ifndef major
212# define major(dev) ((dev) >> 8)
213#endif
214#ifndef minor
215# define minor(dev) ((dev) & 0xff)
216#endif
217
218/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
219#ifdef __sun
220# undef PAGESIZE
221#endif
222
223#if PAGESIZE <= 0
224# define PAGESIZE sysconf (_SC_PAGESIZE)
225#endif
226
227/*****************************************************************************/
228
229#if !_POSIX_MAPPED_FILES
230# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
231# define munmap(addr,length) EIO_ENOSYS ()
232#endif
233
234#if !_POSIX_MEMORY_PROTECTION
235# define mprotect(addr,len,prot) EIO_ENOSYS ()
236#endif
237
238#if !MREMAP_MAYMOVE
239# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
240#endif
241
242#define FOREIGN_MAGIC PERL_MAGIC_ext
243
244static int ecb_cold
245mmap_free (pTHX_ SV *sv, MAGIC *mg)
246{
247 int old_errno = errno;
248 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
249 errno = old_errno;
250
251 mg->mg_obj = 0; /* just in case */
252
253 SvREADONLY_off (sv);
254
255 if (SvPVX (sv) != mg->mg_ptr)
256 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
257
258 SvCUR_set (sv, 0);
259 SvPVX (sv) = 0;
260 SvOK_off (sv);
261
262 return 0;
263}
264
265static MGVTBL mmap_vtbl = {
266 0, 0, 0, 0, mmap_free
267};
268
269static int ecb_cold
270sysfree_free (pTHX_ SV *sv, MAGIC *mg)
271{
272 free (mg->mg_ptr);
273 mg->mg_obj = 0; /* just in case */
274
275 SvREADONLY_off (sv);
276
277 if (SvPVX (sv) != mg->mg_ptr)
278 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
279
280 SvCUR_set (sv, 0);
281 SvPVX (sv) = 0;
282 SvOK_off (sv);
283
284 return 0;
285}
286
287static MGVTBL sysfree_vtbl = {
288 0, 0, 0, 0, sysfree_free
289};
290
291/*****************************************************************************/
292
293/* helper: set scalar to foreign ptr with custom free */
294static void
295sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
296{
297 sv_force_normal (sv);
298
299 /* we store the length in mg_obj, as namlen is I32 :/ */
300 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
301 ->mg_obj = (SV *)length;
302
303 SvUPGRADE (sv, SVt_PV); /* nop... */
304
305 if (SvLEN (sv))
306 Safefree (SvPVX (sv));
307
308 SvPVX (sv) = (char *)addr;
309 SvCUR_set (sv, length);
310 SvLEN_set (sv, 0);
311 SvPOK_only (sv);
312}
313
314static void
315sv_clear_foreign (SV *sv)
316{
317 /* todo: iterate over magic and only free ours, but of course */
318 /* the perl5porters will call that (correct) behaviour buggy */
319 sv_unmagic (sv, FOREIGN_MAGIC);
320}
321
322/*****************************************************************************/
323
150/* defines all sorts of constants to 0 unless they are already defined */ 324/* defines all sorts of constants to 0 unless they are already defined */
151/* also provides const_iv_ and const_niv_ macros for them */ 325/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h" 326#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
167 327
168/*****************************************************************************/ 328/*****************************************************************************/
169 329
170static void 330static void
171fiemap (eio_req *req) 331fiemap (eio_req *req)
… …
262 errno = ENOSYS; 422 errno = ENOSYS;
263#endif 423#endif
264} 424}
265 425
266/*****************************************************************************/ 426/*****************************************************************************/
427
428static int close_fd; /* dummy fd to close fds via dup2 */
267 429
268enum { 430enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 431 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270}; 432};
271 433
… …
591 SvSETMAGIC (req->sv2); 753 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result); 754 PUSHs (sv_result);
593 } 755 }
594 break; 756 break;
595 757
758 case EIO_SLURP:
759 {
760 if (req->result >= 0)
761 {
762 /* if length was originally not known, we steal the malloc'ed memory */
763 if (req->flags & EIO_FLAG_PTR2_FREE)
764 {
765 req->flags &= ~EIO_FLAG_PTR2_FREE;
766 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
767 }
768 else
769 {
770 SvCUR_set (req->sv2, req->result);
771 *SvEND (req->sv2) = 0;
772 SvPOK_only (req->sv2);
773 }
774
775 SvSETMAGIC (req->sv2);
776 }
777
778 PUSHs (sv_result);
779 }
780 break;
781
596 case EIO_CUSTOM: 782 case EIO_CUSTOM:
597 if (req->feed == fiemap) 783 if (req->feed == fiemap)
598 { 784 {
599#if HAVE_FIEMAP 785#if HAVE_FIEMAP
600 if (!req->result) 786 if (!req->result)
… …
631 } 817 }
632 else 818 else
633 PUSHs (sv_result); 819 PUSHs (sv_result);
634 break; 820 break;
635 821
822#if 0
823 case EIO_CLOSE:
824 PerlIOUnix_refcnt_dec (req->int1);
825 break;
826#endif
827
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 828 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0) 829 if (req->result > 0)
638 SvIV_set (sv_result, 0); 830 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */ 831 /* FALLTHROUGH */
640 832
… …
743 create_respipe (); 935 create_respipe ();
744 936
745 if (eio_init (want_poll, done_poll) < 0) 937 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library"); 938 croak ("IO::AIO: unable to initialise eio library");
747} 939}
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
762static int ecb_cold
763mmap_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
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786 940
787/*****************************************************************************/ 941/*****************************************************************************/
788 942
789static SV * 943static SV *
790get_cb (SV *cb_sv) 944get_cb (SV *cb_sv)
… …
886 req_set_path1 (req, fh_or_path); 1040 req_set_path1 (req, fh_or_path);
887 break; 1041 break;
888 } 1042 }
889} 1043}
890 1044
1045/*****************************************************************************/
1046
1047static void
1048ts_set (struct timespec *ts, NV value)
1049{
1050 ts->tv_sec = value;
1051 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1052}
1053
1054static NV
1055ts_get (const struct timespec *ts)
1056{
1057 return ts->tv_sec + ts->tv_nsec * 1e-9;
1058}
1059
1060/*****************************************************************************/
1061
891XS(boot_IO__AIO) ecb_cold; 1062XS(boot_IO__AIO) ecb_cold;
892 1063
893MODULE = IO::AIO PACKAGE = IO::AIO 1064MODULE = IO::AIO PACKAGE = IO::AIO
894 1065
895PROTOTYPES: ENABLE 1066PROTOTYPES: ENABLE
… …
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL) 1095 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL) 1096 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) 1097 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) 1098 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) 1099 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
930 1100
931 /* the second block will be 0 when missing */ 1101 /* the second block will be 0 when missing */
1102 const_iv (O_ACCMODE)
1103
932 const_iv (O_RDONLY) 1104 const_iv (O_RDONLY)
933 const_iv (O_WRONLY) 1105 const_iv (O_WRONLY)
934 const_iv (O_RDWR) 1106 const_iv (O_RDWR)
935 const_iv (O_CREAT) 1107 const_iv (O_CREAT)
936 const_iv (O_TRUNC) 1108 const_iv (O_TRUNC)
… …
996 const_iv (MAP_GROWSDOWN) 1168 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT) 1169 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB) 1170 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK) 1171 const_iv (MAP_STACK)
1000 1172
1173 const_iv (MREMAP_MAYMOVE)
1174 const_iv (MREMAP_FIXED)
1175
1001 const_iv (F_DUPFD_CLOEXEC) 1176 const_iv (F_DUPFD_CLOEXEC)
1177
1178 const_iv (MSG_CMSG_CLOEXEC)
1179 const_iv (SOCK_CLOEXEC)
1002 1180
1003 const_iv (F_OFD_GETLK) 1181 const_iv (F_OFD_GETLK)
1004 const_iv (F_OFD_SETLK) 1182 const_iv (F_OFD_SETLK)
1005 const_iv (F_OFD_GETLKW) 1183 const_iv (F_OFD_GETLKW)
1006 1184
… …
1079 const_iv (SPLICE_F_MOVE) 1257 const_iv (SPLICE_F_MOVE)
1080 const_iv (SPLICE_F_NONBLOCK) 1258 const_iv (SPLICE_F_NONBLOCK)
1081 const_iv (SPLICE_F_MORE) 1259 const_iv (SPLICE_F_MORE)
1082 const_iv (SPLICE_F_GIFT) 1260 const_iv (SPLICE_F_GIFT)
1083 1261
1262 const_iv (EFD_CLOEXEC)
1263 const_iv (EFD_NONBLOCK)
1264 const_iv (EFD_SEMAPHORE)
1265
1266 const_iv (CLOCK_REALTIME)
1267 const_iv (CLOCK_MONOTONIC)
1268 const_iv (CLOCK_BOOTTIME)
1269 const_iv (CLOCK_REALTIME_ALARM)
1270 const_iv (CLOCK_BOOTTIME_ALARM)
1271
1272 const_iv (TFD_NONBLOCK)
1273 const_iv (TFD_CLOEXEC)
1274
1275 const_iv (TFD_TIMER_ABSTIME)
1276 const_iv (TFD_TIMER_CANCEL_ON_SET)
1277
1084 /* these are libeio constants, and are independent of gendef0 */ 1278 /* these are libeio constants, and are independent of gendef0 */
1085 const_eio (SEEK_SET) 1279 const_eio (SEEK_SET)
1086 const_eio (SEEK_CUR) 1280 const_eio (SEEK_CUR)
1087 const_eio (SEEK_END) 1281 const_eio (SEEK_END)
1088 1282
1089 const_eio (MCL_FUTURE) 1283 const_eio (MCL_FUTURE)
1090 const_eio (MCL_CURRENT) 1284 const_eio (MCL_CURRENT)
1285 const_eio (MCL_ONFAULT)
1091 1286
1092 const_eio (MS_ASYNC) 1287 const_eio (MS_ASYNC)
1093 const_eio (MS_INVALIDATE) 1288 const_eio (MS_INVALIDATE)
1094 const_eio (MS_SYNC) 1289 const_eio (MS_SYNC)
1095 1290
… …
1101 1296
1102 const_eio (FALLOC_FL_KEEP_SIZE) 1297 const_eio (FALLOC_FL_KEEP_SIZE)
1103 const_eio (FALLOC_FL_PUNCH_HOLE) 1298 const_eio (FALLOC_FL_PUNCH_HOLE)
1104 const_eio (FALLOC_FL_COLLAPSE_RANGE) 1299 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1105 const_eio (FALLOC_FL_ZERO_RANGE) 1300 const_eio (FALLOC_FL_ZERO_RANGE)
1301 const_eio (FALLOC_FL_INSERT_RANGE)
1302 const_eio (FALLOC_FL_UNSHARE_RANGE)
1106 1303
1107 const_eio (RENAME_NOREPLACE) 1304 const_eio (RENAME_NOREPLACE)
1108 const_eio (RENAME_EXCHANGE) 1305 const_eio (RENAME_EXCHANGE)
1109 const_eio (RENAME_WHITEOUT) 1306 const_eio (RENAME_WHITEOUT)
1110 1307
… …
1132 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) 1329 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1133 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); 1330 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1134 1331
1135 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); 1332 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1136 1333
1334 /* allocate dummy pipe fd for aio_close */
1335 {
1336 int pipefd [2];
1337
1338 if (
1339#ifdef _WIN32
1340 _pipe (pipefd, 1, _O_BINARY) < 0
1341#else
1342 pipe (pipefd) < 0
1343 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1344#endif
1345 || close (pipefd [1]) < 0
1346 )
1347 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1348
1349 close_fd = pipefd [0];
1350 }
1351
1137 reinit (); 1352 reinit ();
1138} 1353}
1139 1354
1140void 1355void
1141reinit () 1356reinit ()
… …
1263 1478
1264void 1479void
1265aio_close (SV *fh, SV *callback = &PL_sv_undef) 1480aio_close (SV *fh, SV *callback = &PL_sv_undef)
1266 PPCODE: 1481 PPCODE:
1267{ 1482{
1268 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1269 int fd = s_fileno_croak (fh, 0); 1483 int fd = s_fileno_croak (fh, 0);
1270 dREQ; 1484 dREQ;
1485#if 0
1486 /* partially duplicate logic in s_fileno */
1487 SvGETMAGIC (fh);
1271 1488
1272 if (expect_false (close_fd < 0)) 1489 if (SvROK (fh))
1490 {
1491 fh = SvRV (fh);
1492 SvGETMAGIC (fh);
1493 }
1494
1495 if (SvTYPE (fh) == SVt_PVGV)
1273 { 1496 {
1274 int pipefd [2]; 1497 /* perl filehandle */
1498 PerlIOUnix_refcnt_inc (fd);
1499 do_close ((GV *)fh, 1);
1275 1500
1276 if ( 1501 req->type = EIO_CLOSE;
1277#ifdef _WIN32 1502 req->int1 = fd;
1278 _pipe (pipefd, 1, _O_BINARY) < 0 1503 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1279#else
1280 pipe (pipefd) < 0
1281 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1282#endif
1283 || close (pipefd [1]) < 0
1284 )
1285 abort (); /*D*/
1286
1287 close_fd = pipefd [0];
1288 } 1504 }
1289 1505 else
1506#endif
1507 {
1508 /* fd number */
1290 req->type = EIO_DUP2; 1509 req->type = EIO_DUP2;
1291 req->int1 = close_fd; 1510 req->int1 = close_fd;
1292 req->sv2 = newSVsv (fh); 1511 req->sv2 = newSVsv (fh);
1293 req->int2 = fd; 1512 req->int2 = fd;
1513 }
1294 1514
1295 REQ_SEND; 1515 REQ_SEND;
1296} 1516}
1297 1517
1298void 1518void
… …
1469 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1689 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1470 1690
1471 REQ_SEND; 1691 REQ_SEND;
1472} 1692}
1473 1693
1694void
1695st_xtime ()
1696 ALIAS:
1697 st_atime = 0x01
1698 st_mtime = 0x02
1699 st_ctime = 0x04
1700 st_btime = 0x08
1701 st_xtime = 0x0f
1702 PPCODE:
1703 EXTEND (SP, 4);
1704 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1705 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1706 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1707 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1708
1709void
1710st_xtimensec ()
1711 ALIAS:
1712 st_atimensec = 0x01
1713 st_mtimensec = 0x02
1714 st_ctimensec = 0x04
1715 st_btimensec = 0x08
1716 st_xtimensec = 0x0f
1717 st_btimesec = 0x10
1718 st_gen = 0x20
1719 PPCODE:
1720 EXTEND (SP, 4);
1721 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1722 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1723 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1724 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1725 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1726 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1727
1474UV 1728UV
1475major (UV dev) 1729major (UV dev)
1476 ALIAS: 1730 ALIAS:
1477 minor = 1 1731 minor = 1
1478 CODE: 1732 CODE:
… …
1728 req->int2 = flags; 1982 req->int2 = flags;
1729 req->int3 = SvOK (count) ? SvIV (count) : -1; 1983 req->int3 = SvOK (count) ? SvIV (count) : -1;
1730#endif 1984#endif
1731 1985
1732 REQ_SEND; 1986 REQ_SEND;
1987}
1988
1989void
1990aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1991 PPCODE:
1992{
1993 char *svptr = 0;
1994
1995 sv_clear_foreign (data);
1996
1997 if (length) /* known length, directly read into scalar */
1998 {
1999 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2000 svptr = sv_grow (data, length + 1);
2001 else if (SvCUR (data) < length)
2002 croak ("length outside of scalar, and cannot grow");
2003 else
2004 svptr = SvPVbyte_nolen (data);
2005 }
2006
2007 {
2008 dREQ;
2009
2010 req->type = EIO_SLURP;
2011 req_set_path1 (req, pathname);
2012 req->offs = offset;
2013 req->size = length;
2014 req->sv2 = SvREFCNT_inc (data);
2015 req->ptr2 = svptr;
2016
2017 if (!SvREADONLY (data))
2018 {
2019 SvREADONLY_on (data);
2020 req->flags |= FLAG_SV2_RO_OFF;
2021 }
2022
2023 REQ_SEND;
2024 }
1733} 2025}
1734 2026
1735void 2027void
1736aio_busy (double delay, SV *callback = &PL_sv_undef) 2028aio_busy (double delay, SV *callback = &PL_sv_undef)
1737 PPCODE: 2029 PPCODE:
… …
1874 RETVAL 2166 RETVAL
1875 2167
1876void 2168void
1877mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) 2169mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1878 PPCODE: 2170 PPCODE:
1879 sv_unmagic (scalar, MMAP_MAGIC); 2171 sv_clear_foreign (scalar);
1880{ 2172{
1881 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 2173 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1882 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 2174 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1883 if (addr == (void *)-1) 2175 if (addr == (void *)-1)
1884 XSRETURN_NO; 2176 XSRETURN_NO;
1885 2177
1886 sv_force_normal (scalar); 2178 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1887
1888 /* we store the length in mg_obj, as namlen is I32 :/ */
1889 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1890 ->mg_obj = (SV *)length;
1891
1892 SvUPGRADE (scalar, SVt_PV); /* nop... */
1893 2179
1894 if (!(prot & PROT_WRITE)) 2180 if (!(prot & PROT_WRITE))
1895 SvREADONLY_on (scalar); 2181 SvREADONLY_on (scalar);
1896 2182
1897 if (SvLEN (scalar))
1898 Safefree (SvPVX (scalar));
1899
1900 SvPVX (scalar) = (char *)addr;
1901 SvCUR_set (scalar, length);
1902 SvLEN_set (scalar, 0);
1903 SvPOK_only (scalar);
1904
1905 XSRETURN_YES; 2183 XSRETURN_YES;
1906} 2184}
1907 2185
1908void 2186void
1909munmap (SV *scalar) 2187munmap (SV *scalar)
1910 CODE: 2188 CODE:
1911 sv_unmagic (scalar, MMAP_MAGIC); 2189 sv_clear_foreign (scalar);
2190
2191SV *
2192mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2193 CODE:
2194{
2195 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2196 void *new;
2197
2198 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2199 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2200
2201 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2202
2203 RETVAL = &PL_sv_no;
2204
2205 if (new != (void *)-1)
2206 {
2207 RETVAL = new == (void *)mg->mg_ptr
2208 ? newSVpvn ("0 but true", 10)
2209 : &PL_sv_yes;
2210
2211 mg->mg_ptr = (char *)new;
2212 mg->mg_obj = (SV *)new_length;
2213
2214 SvPVX (scalar) = mg->mg_ptr;
2215 SvCUR_set (scalar, new_length);
2216 }
2217}
2218 OUTPUT:
2219 RETVAL
1912 2220
1913int 2221int
1914madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) 2222madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1915 ALIAS: 2223 ALIAS:
1916 mprotect = 1 2224 mprotect = 1
1917 CODE: 2225 CODE:
1918{ 2226{
1919 STRLEN svlen; 2227 STRLEN svlen;
… …
1940} 2248}
1941 OUTPUT: 2249 OUTPUT:
1942 RETVAL 2250 RETVAL
1943 2251
1944int 2252int
1945munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef) 2253munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1946 CODE: 2254 CODE:
1947{ 2255{
1948 STRLEN svlen; 2256 STRLEN svlen;
1949 void *addr = SvPVbyte (scalar, svlen); 2257 void *addr = SvPVbyte (scalar, svlen);
1950 size_t len = SvUV (length); 2258 size_t len = SvUV (length);
… …
1965#else 2273#else
1966 RETVAL = EIO_ENOSYS (); 2274 RETVAL = EIO_ENOSYS ();
1967#endif 2275#endif
1968} 2276}
1969 OUTPUT: 2277 OUTPUT:
2278 RETVAL
2279
2280int
2281mlockall (int flags)
2282 PROTOTYPE: $;
2283 CODE:
2284 RETVAL = eio_mlockall_sync (flags);
2285 OUTPUT:
1970 RETVAL 2286 RETVAL
1971 2287
1972int 2288int
1973munlockall () 2289munlockall ()
1974 CODE: 2290 CODE:
… …
2046 { 2362 {
2047 EXTEND (SP, 2); 2363 EXTEND (SP, 2);
2048 PUSHs (newmortalFH (fd[0], O_RDONLY)); 2364 PUSHs (newmortalFH (fd[0], O_RDONLY));
2049 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2365 PUSHs (newmortalFH (fd[1], O_WRONLY));
2050 } 2366 }
2367}
2368
2369void
2370eventfd (unsigned int initval = 0, int flags = 0)
2371 PPCODE:
2372{
2373 int fd;
2374#if HAVE_EVENTFD
2375 fd = eventfd (initval, flags);
2376#else
2377 fd = (errno = ENOSYS, -1);
2378#endif
2379
2380 XPUSHs (newmortalFH (fd, O_RDWR));
2381}
2382
2383void
2384timerfd_create (int clockid, int flags = 0)
2385 PPCODE:
2386{
2387 int fd;
2388#if HAVE_TIMERFD
2389 fd = timerfd_create (clockid, flags);
2390#else
2391 fd = (errno = ENOSYS, -1);
2392#endif
2393
2394 XPUSHs (newmortalFH (fd, O_RDWR));
2395}
2396
2397void
2398timerfd_settime (SV *fh, int flags, NV interval, NV value)
2399 PPCODE:
2400{
2401 int fd = s_fileno_croak (fh, 0);
2402#if HAVE_TIMERFD
2403 int res;
2404 struct itimerspec its, ots;
2405
2406 ts_set (&its.it_interval, interval);
2407 ts_set (&its.it_value , value);
2408 res = timerfd_settime (fd, flags, &its, &ots);
2409
2410 if (!res)
2411 {
2412 EXTEND (SP, 2);
2413 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2414 PUSHs (newSVnv (ts_get (&ots.it_value)));
2415 }
2416#else
2417 errno = ENOSYS;
2418#endif
2419}
2420
2421void
2422timerfd_gettime (SV *fh)
2423 PPCODE:
2424{
2425 int fd = s_fileno_croak (fh, 0);
2426#if HAVE_TIMERFD
2427 int res;
2428 struct itimerspec ots;
2429 res = timerfd_gettime (fd, &ots);
2430
2431 if (!res)
2432 {
2433 EXTEND (SP, 2);
2434 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2435 PUSHs (newSVnv (ts_get (&ots.it_value)));
2436 }
2437#else
2438 errno = ENOSYS;
2439#endif
2440}
2441
2442UV
2443get_fdlimit ()
2444 CODE:
2445#if HAVE_RLIMITS
2446 struct rlimit rl;
2447 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2448 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2449#endif
2450 XSRETURN_UNDEF;
2451 OUTPUT:
2452 RETVAL
2453
2454void
2455min_fdlimit (UV limit = 0x7fffffffU)
2456 CODE:
2457{
2458#if HAVE_RLIMITS
2459 struct rlimit rl;
2460 rlim_t orig_rlim_max;
2461 UV bit;
2462
2463 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2464 goto fail;
2465
2466 if (rl.rlim_cur == RLIM_INFINITY)
2467 XSRETURN_YES;
2468
2469 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2470
2471 if (rl.rlim_cur < limit)
2472 {
2473 rl.rlim_cur = limit;
2474
2475 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2476 rl.rlim_max = rl.rlim_cur;
2477 }
2478
2479 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2480 XSRETURN_YES;
2481
2482 if (errno == EPERM)
2483 {
2484 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2485 /* our limit overflows a system-wide limit */
2486 /* try an adaptive algorithm, but do not lower the hardlimit */
2487 rl.rlim_max = 0;
2488 for (bit = 0x40000000U; bit; bit >>= 1)
2489 {
2490 rl.rlim_max |= bit;
2491 rl.rlim_cur = rl.rlim_max;
2492
2493 /* nevr decrease the hard limit */
2494 if (rl.rlim_max < orig_rlim_max)
2495 break;
2496
2497 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2498 rl.rlim_max &= ~bit; /* too high, remove bit again */
2499 }
2500
2501 /* now, raise the soft limit to the max permitted */
2502 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2503 {
2504 rl.rlim_cur = rl.rlim_max;
2505 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2506 errno = EPERM;
2507 }
2508 }
2509#endif
2510 fail:
2511 XSRETURN_UNDEF;
2051} 2512}
2052 2513
2053void _on_next_submit (SV *cb) 2514void _on_next_submit (SV *cb)
2054 CODE: 2515 CODE:
2055 SvREFCNT_dec (on_next_submit); 2516 SvREFCNT_dec (on_next_submit);

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