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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.38 by root, Sun Aug 28 10:51:33 2005 UTC vs.
Revision 1.276 by root, Wed Apr 3 03:03:53 2019 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
7 9
8#include "autoconf/config.h" 10#if !defined mg_findext
9 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
10#include <pthread.h> 12#endif
11 13
12#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
16#include <errno.h>
13#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
14#include <sys/stat.h> 19#include <sys/stat.h>
15#include <limits.h> 20#include <limits.h>
16#include <unistd.h>
17#include <fcntl.h> 21#include <fcntl.h>
18#include <signal.h>
19#include <sched.h> 22#include <sched.h>
20 23
21#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
22# if __linux 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
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
23# include <sys/sendfile.h> 88 #include <sys/select.h>
24# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
25# include <sys/socket.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_SYS_UIO_H
26# include <sys/uio.h> 123# include <sys/uio.h>
27# elif __hpux 124#endif
28# include <sys/socket.h> 125
29# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
30# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
31# else 207# else
32# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
33# endif 209# endif
34#endif 210#endif
35 211
36#if __ia64 212#ifndef makedev
37# define STACKSIZE 65536 213# define makedev(maj,min) (((maj) << 8) | (min))
38#else
39# define STACKSIZE 8192
40#endif 214#endif
215#ifndef major
216# define major(dev) ((dev) >> 8)
217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
41 221
42enum { 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
43 REQ_QUIT, 223#ifdef __sun
44 REQ_OPEN, REQ_CLOSE, 224# undef PAGESIZE
45 REQ_READ, REQ_WRITE, REQ_READAHEAD, 225#endif
46 REQ_SENDFILE, 226
47 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 227#if PAGESIZE <= 0
48 REQ_FSYNC, REQ_FDATASYNC, 228# define PAGESIZE sysconf (_SC_PAGESIZE)
49 REQ_UNLINK, REQ_RMDIR, 229#endif
50 REQ_READDIR, 230
51 REQ_SYMLINK, 231/*****************************************************************************/
232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
266 return 0;
267}
268
269static MGVTBL mmap_vtbl = {
270 0, 0, 0, 0, mmap_free
52}; 271};
53 272
54typedef struct aio_cb { 273static int ecb_cold
55 struct aio_cb *volatile next; 274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
56
57 int type;
58
59 /* should receive a cleanup, with unions */
60 int fd, fd2;
61 off_t offset;
62 size_t length;
63 ssize_t result;
64 mode_t mode; /* open */
65 int errorno;
66 SV *data, *callback;
67 SV *fh, *fh2;
68 void *dataptr, *data2ptr;
69 STRLEN dataoffset;
70
71 Stat_t *statdata;
72} aio_cb;
73
74typedef aio_cb *aio_req;
75
76static int started, wanted;
77static volatile int nreqs;
78static int max_outstanding = 1<<30;
79static int respipe [2];
80
81static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
82static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
83static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84
85static volatile aio_req reqs, reqe; /* queue start, queue end */
86static volatile aio_req ress, rese; /* queue start, queue end */
87
88static void free_req (aio_req req)
89{ 275{
90 if (req->data) 276 free (mg->mg_ptr);
91 SvREFCNT_dec (req->data); 277 mg->mg_obj = 0; /* just in case */
92 278
93 if (req->fh) 279 SvREADONLY_off (sv);
94 SvREFCNT_dec (req->fh);
95 280
96 if (req->fh2) 281 if (SvPVX (sv) != mg->mg_ptr)
97 SvREFCNT_dec (req->fh2); 282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
98 283
99 if (req->statdata) 284 SvCUR_set (sv, 0);
100 Safefree (req->statdata); 285 SvPVX (sv) = 0;
286 SvOK_off (sv);
101 287
102 if (req->callback) 288 return 0;
103 SvREFCNT_dec (req->callback);
104
105 if (req->type == REQ_READDIR && req->result >= 0)
106 free (req->data2ptr);
107
108 Safefree (req);
109} 289}
110 290
291static MGVTBL sysfree_vtbl = {
292 0, 0, 0, 0, sysfree_free
293};
294
295/*****************************************************************************/
296
297/* helper: set scalar to foreign ptr with custom free */
298ecb_noinline
111static void 299static void
112poll_wait () 300sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
113{ 301{
114 if (nreqs && !ress) 302 sv_force_normal (sv);
115 {
116 fd_set rfd;
117 FD_ZERO(&rfd);
118 FD_SET(respipe [0], &rfd);
119 303
120 select (respipe [0] + 1, &rfd, 0, 0, 0); 304 /* we store the length in mg_obj, as namlen is I32 :/ */
121 } 305 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
122} 306 ->mg_obj = (SV *)length;
123 307
308 SvUPGRADE (sv, SVt_PV); /* nop... */
309
310 if (SvLEN (sv))
311 Safefree (SvPVX (sv));
312
313 SvPVX (sv) = (char *)addr;
314 SvCUR_set (sv, length);
315 SvLEN_set (sv, 0);
316 SvPOK_only (sv);
317}
318
124static int 319static void
125poll_cb () 320sv_clear_foreign (SV *sv)
126{ 321{
127 dSP; 322 /* todo: iterate over magic and only free ours, but of course */
323 /* the perl5porters will call that (correct) behaviour buggy */
324 sv_unmagic (sv, FOREIGN_MAGIC);
325}
326
327/*****************************************************************************/
328
329/* defines all sorts of constants to 0 unless they are already defined */
330/* also provides const_iv_ and const_niv_ macros for them */
331#include "def0.h"
332
333/*****************************************************************************/
334
335static void
336fiemap (eio_req *req)
337{
338 req->result = -1;
339
340#if HAVE_FIEMAP
341 /* assume some c99 */
342 struct fiemap *fiemap = 0;
343 size_t end_offset;
344 int count = req->int3;
345
346 req->flags |= EIO_FLAG_PTR1_FREE;
347
348 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
349 /* increase in 3.5kb steps */
350 if (count < 0)
128 int count = 0; 351 count = 8;
129 int do_croak = 0; 352
130 aio_req req; 353 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 errno = ENOMEM;
355 if (!fiemap)
356 return;
357
358 req->ptr1 = fiemap;
359
360 fiemap->fm_start = req->offs;
361 fiemap->fm_length = req->size;
362 fiemap->fm_flags = req->int2;
363 fiemap->fm_extent_count = count;
364
365 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
366 return;
367
368 if (req->int3 >= 0 /* not autosizing */
369 || !fiemap->fm_mapped_extents /* no more extents */
370 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
371 goto done;
372
373 /* else we have to loop -
374 * it would be tempting (actually I tried that first) to just query the
375 * number of extents needed, but linux often feels like not returning all
376 * extents, without telling us it left any out. this complicates
377 * this quite a bit.
378 */
379
380 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
131 381
132 for (;;) 382 for (;;)
133 { 383 {
134 pthread_mutex_lock (&reslock); 384 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
135 req = ress; 385 char scratch[3072];
386 struct fiemap *incmap = (struct fiemap *)scratch;
136 387
388 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
389 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
390 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
391 incmap->fm_flags = fiemap->fm_flags;
392 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
393
394 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
395 return;
396
397 if (!incmap->fm_mapped_extents)
398 goto done;
399
400 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
401 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
402 errno = ENOMEM;
137 if (req) 403 if (!fiemap)
404 return;
405
406 req->ptr1 = fiemap;
407
408 for (count = 0; count < incmap->fm_mapped_extents; ++count)
138 { 409 {
139 ress = req->next; 410 struct fiemap_extent *e = incmap->fm_extents + count;
140 411
141 if (!ress) 412 if (e->fe_logical + e->fe_length >= end_offset)
142 { 413 goto done;
143 /* read any signals sent by the worker threads */
144 char buf [32];
145 while (read (respipe [0], buf, 32) == 32)
146 ;
147 414
148 rese = 0; 415 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
149 }
150 }
151 416
152 pthread_mutex_unlock (&reslock); 417 if (e->fe_flags & FIEMAP_EXTENT_LAST)
418 goto done;
153 419
154 if (!req)
155 break;
156
157 nreqs--;
158
159 if (req->type == REQ_QUIT)
160 started--;
161 else
162 {
163 int errorno = errno;
164 errno = req->errorno;
165
166 if (req->type == REQ_READ)
167 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
168
169 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
170 SvREADONLY_off (req->data);
171
172 if (req->statdata)
173 {
174 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
175 PL_laststatval = req->result;
176 PL_statcache = *(req->statdata);
177 }
178
179 ENTER;
180 PUSHMARK (SP);
181
182 if (req->type == REQ_READDIR)
183 {
184 SV *rv = &PL_sv_undef;
185
186 if (req->result >= 0)
187 {
188 char *buf = req->data2ptr;
189 AV *av = newAV ();
190
191 while (req->result)
192 {
193 SV *sv = newSVpv (buf, 0);
194
195 av_push (av, sv);
196 buf += SvCUR (sv) + 1;
197 req->result--;
198 }
199
200 rv = sv_2mortal (newRV_noinc ((SV *)av));
201 }
202
203 XPUSHs (rv);
204 }
205 else
206 {
207 XPUSHs (sv_2mortal (newSViv (req->result)));
208
209 if (req->type == REQ_OPEN)
210 {
211 /* convert fd to fh */
212 SV *fh;
213
214 PUTBACK;
215 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
216 SPAGAIN;
217
218 fh = SvREFCNT_inc (POPs);
219
220 PUSHMARK (SP);
221 XPUSHs (sv_2mortal (fh));
222 }
223 }
224
225 if (SvOK (req->callback))
226 {
227 PUTBACK;
228 call_sv (req->callback, G_VOID | G_EVAL);
229 SPAGAIN;
230
231 if (SvTRUE (ERRSV))
232 {
233 free_req (req);
234 croak (0);
235 }
236 }
237
238 LEAVE;
239
240 errno = errorno;
241 count++;
242 }
243
244 free_req (req);
245 }
246
247 return count;
248}
249
250static void *aio_proc(void *arg);
251
252static void
253start_thread (void)
254{
255 sigset_t fullsigset, oldsigset;
256 pthread_t tid;
257 pthread_attr_t attr;
258
259 pthread_attr_init (&attr);
260 pthread_attr_setstacksize (&attr, STACKSIZE);
261 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
262
263 sigfillset (&fullsigset);
264 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
265
266 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
267 started++;
268
269 sigprocmask (SIG_SETMASK, &oldsigset, 0);
270}
271
272static void
273send_req (aio_req req)
274{
275 while (started < wanted && nreqs >= started)
276 start_thread ();
277
278 nreqs++;
279
280 pthread_mutex_lock (&reqlock);
281
282 req->next = 0;
283
284 if (reqe)
285 {
286 reqe->next = req;
287 reqe = req;
288 }
289 else
290 reqe = reqs = req;
291
292 pthread_cond_signal (&reqwait);
293 pthread_mutex_unlock (&reqlock);
294
295 if (nreqs > max_outstanding)
296 for (;;)
297 {
298 poll_cb ();
299
300 if (nreqs <= max_outstanding)
301 break;
302
303 poll_wait ();
304 }
305}
306
307static void
308end_thread (void)
309{
310 aio_req req;
311 Newz (0, req, 1, aio_cb);
312 req->type = REQ_QUIT;
313
314 send_req (req);
315}
316
317static void min_parallel (int nthreads)
318{
319 if (wanted < nthreads)
320 wanted = nthreads;
321}
322
323static void max_parallel (int nthreads)
324{
325 int cur = started;
326
327 if (wanted > nthreads)
328 wanted = nthreads;
329
330 while (cur > wanted)
331 {
332 end_thread ();
333 cur--;
334 }
335
336 while (started > wanted)
337 {
338 poll_wait ();
339 poll_cb ();
340 }
341}
342
343static void create_pipe ()
344{
345 if (pipe (respipe))
346 croak ("unable to initialize result pipe");
347
348 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
349 croak ("cannot set result pipe to nonblocking mode");
350
351 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
352 croak ("cannot set result pipe to nonblocking mode");
353}
354
355/*****************************************************************************/
356/* work around various missing functions */
357
358#if !HAVE_PREADWRITE
359# define pread aio_pread
360# define pwrite aio_pwrite
361
362/*
363 * make our pread/pwrite safe against themselves, but not against
364 * normal read/write by using a mutex. slows down execution a lot,
365 * but that's your problem, not mine.
366 */
367static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
368
369static ssize_t
370pread (int fd, void *buf, size_t count, off_t offset)
371{
372 ssize_t res;
373 off_t ooffset;
374
375 pthread_mutex_lock (&preadwritelock);
376 ooffset = lseek (fd, 0, SEEK_CUR);
377 lseek (fd, offset, SEEK_SET);
378 res = read (fd, buf, count);
379 lseek (fd, ooffset, SEEK_SET);
380 pthread_mutex_unlock (&preadwritelock);
381
382 return res;
383}
384
385static ssize_t
386pwrite (int fd, void *buf, size_t count, off_t offset)
387{
388 ssize_t res;
389 off_t ooffset;
390
391 pthread_mutex_lock (&preadwritelock);
392 ooffset = lseek (fd, 0, SEEK_CUR);
393 lseek (fd, offset, SEEK_SET);
394 res = write (fd, buf, count);
395 lseek (fd, offset, SEEK_SET);
396 pthread_mutex_unlock (&preadwritelock);
397
398 return res;
399}
400#endif
401
402#if !HAVE_FDATASYNC
403# define fdatasync fsync
404#endif
405
406#if !HAVE_READAHEAD
407# define readahead aio_readahead
408
409static ssize_t
410readahead (int fd, off_t offset, size_t count)
411{
412 char readahead_buf[4096];
413
414 while (count > 0)
415 {
416 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
417
418 pread (fd, readahead_buf, len, offset);
419 offset += len;
420 count -= len;
421 }
422
423 errno = 0;
424}
425#endif
426
427#if !HAVE_READDIR_R
428# define readdir_r aio_readdir_r
429
430static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
431
432static int
433readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
434{
435 struct dirent *e;
436 int errorno;
437
438 pthread_mutex_lock (&readdirlock);
439
440 e = readdir (dirp);
441 errorno = errno;
442
443 if (e)
444 {
445 *res = ent;
446 strcpy (ent->d_name, e->d_name);
447 }
448 else
449 *res = 0;
450
451 pthread_mutex_unlock (&readdirlock);
452
453 errno = errorno;
454 return e ? 0 : -1;
455}
456#endif
457
458/* sendfile always needs emulation */
459static ssize_t
460sendfile_ (int ofd, int ifd, off_t offset, size_t count)
461{
462 ssize_t res;
463
464 if (!count)
465 return 0;
466
467#if HAVE_SENDFILE
468# if __linux
469 res = sendfile (ofd, ifd, &offset, count);
470
471# elif __freebsd
472 /*
473 * Of course, the freebsd sendfile is a dire hack with no thoughts
474 * wasted on making it similar to other I/O functions.
475 */
476 {
477 off_t sbytes;
478 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
479
480 if (res < 0 && sbytes)
481 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
482 res = sbytes;
483 }
484
485# elif __hpux
486 res = sendfile (ofd, ifd, offset, count, 0, 0);
487
488# elif __solaris
489 {
490 struct sendfilevec vec;
491 size_t sbytes;
492
493 vec.sfv_fd = ifd;
494 vec.sfv_flag = 0;
495 vec.sfv_off = offset;
496 vec.sfv_len = count;
497
498 res = sendfilev (ofd, &vec, 1, &sbytes);
499
500 if (res < 0 && sbytes)
501 res = sbytes;
502 }
503
504# endif
505#else
506 res = -1;
507 errno = ENOSYS;
508#endif
509
510 if (res < 0
511 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
512#if __solaris
513 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
514#endif
515 )
516 )
517 {
518 /* emulate sendfile. this is a major pain in the ass */
519 char buf[4096];
520 res = 0;
521
522 while (count)
523 {
524 ssize_t cnt;
525
526 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
527
528 if (cnt <= 0)
529 {
530 if (cnt && !res) res = -1;
531 break;
532 }
533
534 cnt = write (ofd, buf, cnt);
535
536 if (cnt <= 0)
537 {
538 if (cnt && !res) res = -1;
539 break;
540 }
541
542 offset += cnt;
543 res += cnt;
544 count -= cnt;
545 } 420 }
546 } 421 }
547 422
548 return res; 423done:
549} 424 req->result = 0;
550 425
551/* read a full directory */ 426#else
427 errno = ENOSYS;
428#endif
429}
430
431/*****************************************************************************/
432
433static int close_fd; /* dummy fd to close fds via dup2 */
434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
442#endif
443
444enum {
445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
446};
447
448typedef eio_req *aio_req;
449typedef eio_req *aio_req_ornot;
450typedef eio_wd aio_wd;
451
452static SV *on_next_submit;
453static int next_pri = EIO_PRI_DEFAULT;
454static int max_outstanding;
455
456static s_epipe respipe;
457
458static void req_destroy (aio_req req);
459static void req_cancel (aio_req req);
460
461static void
462want_poll (void)
463{
464 /* write a dummy byte to the pipe so fh becomes ready */
465 s_epipe_signal (&respipe);
466}
467
468static void
469done_poll (void)
470{
471 /* read any signals sent by the worker threads */
472 s_epipe_drain (&respipe);
473}
474
475/* must be called at most once */
476ecb_noinline
477static SV *
478req_sv (aio_req req, HV *stash)
479{
480 if (!req->self)
481 {
482 req->self = (SV *)newHV ();
483 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
484 }
485
486 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
487}
488
489static SV *
490newSVaio_wd (aio_wd wd)
491{
492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
493}
494
495ecb_noinline
496static aio_req
497SvAIO_REQ (SV *sv)
498{
499 MAGIC *mg;
500
501 if (!SvROK (sv)
502 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
503 || (SvSTASH (SvRV (sv)) != aio_grp_stash
504 && SvSTASH (SvRV (sv)) != aio_req_stash
505 && !sv_derived_from (sv, "IO::AIO::REQ")))
506 croak ("object of class IO::AIO::REQ expected");
507
508 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
509
510 return mg ? (aio_req)mg->mg_ptr : 0;
511}
512
513static aio_wd
514SvAIO_WD (SV *sv)
515{
516 if (!SvROK (sv)
517 || SvTYPE (SvRV (sv)) != SVt_PVMG
518 || SvSTASH (SvRV (sv)) != aio_wd_stash)
519 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
520
521 return (aio_wd)(long)SvIVX (SvRV (sv));
522}
523
524static SV *
525newmortalFH (int fd, int flags)
526{
527 if (fd < 0)
528 return &PL_sv_undef;
529
530 GV *gv = (GV *)sv_newmortal ();
531 char sym[64];
532 int symlen;
533
534 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
535 gv_init (gv, aio_stash, sym, symlen, 0);
536
537 symlen = snprintf (
538 sym,
539 sizeof (sym),
540 "%s&=%d",
541 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
542 fd
543 );
544
545 return do_open (gv, sym, symlen, 0, 0, 0, 0)
546 ? (SV *)gv : &PL_sv_undef;
547}
548
549static void
550aio_grp_feed (aio_req grp)
551{
552 if (grp->sv2 && SvOK (grp->sv2))
553 {
554 dSP;
555
556 ENTER;
557 SAVETMPS;
558 PUSHMARK (SP);
559 XPUSHs (req_sv (grp, aio_grp_stash));
560 PUTBACK;
561 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
562 SPAGAIN;
563 FREETMPS;
564 LEAVE;
565 }
566}
567
568ecb_noinline
569static void
570req_submit (eio_req *req)
571{
572 eio_submit (req);
573
574 if (expect_false (on_next_submit))
575 {
576 dSP;
577 SV *cb = sv_2mortal (on_next_submit);
578
579 on_next_submit = 0;
580
581 PUSHMARK (SP);
582 PUTBACK;
583 call_sv (cb, G_DISCARD | G_EVAL);
584 }
585}
586
552static int 587static int
553scandir_ (const char *path, void **namesp) 588req_invoke (eio_req *req)
554{ 589{
555 DIR *dirp = opendir (path); 590 if (req->flags & FLAG_SV2_RO_OFF)
556 union 591 SvREADONLY_off (req->sv2);
557 {
558 struct dirent d;
559 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
560 } u;
561 struct dirent *entp;
562 char *name, *names;
563 int memlen = 4096;
564 int memofs = 0;
565 int res = 0;
566 int errorno;
567 592
568 if (!dirp) 593 if (!EIO_CANCELLED (req) && req->callback)
569 return -1;
570
571 names = malloc (memlen);
572
573 for (;;)
574 { 594 {
575 errno = 0, readdir_r (dirp, &u.d, &entp); 595 dSP;
596 static SV *sv_result_cache; /* caches the result integer SV */
597 SV *sv_result;
576 598
577 if (!entp) 599 ENTER;
578 break; 600 SAVETMPS;
601 PUSHMARK (SP);
602 EXTEND (SP, 1);
579 603
580 name = entp->d_name; 604 /* do not recreate the result IV from scratch each time */
581 605 if (expect_true (sv_result_cache))
582 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
583 { 606 {
584 int len = strlen (name) + 1; 607 sv_result = sv_result_cache; sv_result_cache = 0;
585 608 SvIV_set (sv_result, req->result);
586 res++; 609 SvIOK_only (sv_result);
587
588 while (memofs + len > memlen)
589 {
590 memlen *= 2;
591 names = realloc (names, memlen);
592 if (!names)
593 break;
594 }
595
596 memcpy (names + memofs, name, len);
597 memofs += len;
598 }
599 }
600
601 errorno = errno;
602 closedir (dirp);
603
604 if (errorno)
605 {
606 free (names);
607 errno = errorno;
608 res = -1;
609 }
610
611 *namesp = (void *)names;
612 return res;
613}
614
615/*****************************************************************************/
616
617static void *
618aio_proc (void *thr_arg)
619{
620 aio_req req;
621 int type;
622
623 do
624 {
625 pthread_mutex_lock (&reqlock);
626
627 for (;;)
628 {
629 req = reqs;
630
631 if (reqs)
632 {
633 reqs = reqs->next;
634 if (!reqs) reqe = 0;
635 }
636
637 if (req)
638 break;
639
640 pthread_cond_wait (&reqwait, &reqlock);
641 }
642
643 pthread_mutex_unlock (&reqlock);
644
645 errno = 0; /* strictly unnecessary */
646
647 type = req->type;
648
649 switch (type)
650 {
651 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
652 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
653
654 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
655 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
656
657 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
658 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
659 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
660
661 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
662 case REQ_CLOSE: req->result = close (req->fd); break;
663 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
664 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
665 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
666
667 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
668 case REQ_FSYNC: req->result = fsync (req->fd); break;
669 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
670
671 case REQ_QUIT:
672 break;
673
674 default:
675 req->result = ENOSYS;
676 break;
677 }
678
679 req->errorno = errno;
680
681 pthread_mutex_lock (&reslock);
682
683 req->next = 0;
684
685 if (rese)
686 {
687 rese->next = req;
688 rese = req;
689 } 610 }
690 else 611 else
691 { 612 {
692 rese = ress = req; 613 sv_result = newSViv (req->result);
693 614 SvREADONLY_on (sv_result);
694 /* write a dummy byte to the pipe so fh becomes ready */
695 write (respipe [1], &respipe, 1);
696 } 615 }
697 616
698 pthread_mutex_unlock (&reslock); 617 switch (req->type)
618 {
619 case EIO_WD_OPEN:
620 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
621 break;
622
623 case EIO_READDIR:
624 {
625 SV *rv = &PL_sv_undef;
626
627 if (req->result >= 0)
628 {
629 int i;
630 char *names = (char *)req->ptr2;
631 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
632 AV *av = newAV ();
633
634 av_extend (av, req->result - 1);
635
636 for (i = 0; i < req->result; ++i)
637 {
638 if (req->int1 & EIO_READDIR_DENTS)
639 {
640 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
641
642 if (req->int1 & EIO_READDIR_CUSTOM2)
643 {
644 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
645 AV *avent = newAV ();
646
647 av_extend (avent, 2);
648
649 if (!sv_type [ent->type])
650 {
651 sv_type [ent->type] = newSViv (ent->type);
652 SvREADONLY_on (sv_type [ent->type]);
653 }
654
655 av_store (avent, 0, namesv);
656 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
657 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
658
659 av_store (av, i, newRV_noinc ((SV *)avent));
660 }
661 else
662 av_store (av, i, namesv);
663
664 ++ent;
665 }
666 else
667 {
668 SV *name = newSVpv (names, 0);
669 av_store (av, i, name);
670 names += SvCUR (name) + 1;
671 }
672 }
673
674 rv = sv_2mortal (newRV_noinc ((SV *)av));
675 }
676
677 PUSHs (rv);
678
679 if (req->int1 & EIO_READDIR_CUSTOM1)
680 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
681 }
682 break;
683
684 case EIO_OPEN:
685 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
686 break;
687
688 case EIO_STATVFS:
689 case EIO_FSTATVFS:
690 {
691 SV *rv = &PL_sv_undef;
692
693#ifndef _WIN32
694 if (req->result >= 0)
695 {
696 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
697 HV *hv = newHV ();
698 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
699 * chooses to make it a struct.
700 */
701 unsigned long fsid = 0;
702 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
703
704 rv = sv_2mortal (newRV_noinc ((SV *)hv));
705
706 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
707 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
708 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
709 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
710 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
711 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
712 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
713 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
714 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
715 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
716 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
717 }
718#endif
719
720 PUSHs (rv);
721 }
722
723 break;
724
725 case EIO_GROUP:
726 req->int1 = 2; /* mark group as finished */
727
728 if (req->sv1)
729 {
730 int i;
731 AV *av = (AV *)req->sv1;
732
733 EXTEND (SP, AvFILL (av) + 1);
734 for (i = 0; i <= AvFILL (av); ++i)
735 PUSHs (*av_fetch (av, i, 0));
736 }
737 break;
738
739 case EIO_NOP:
740 case EIO_BUSY:
741 break;
742
743 case EIO_READLINK:
744 case EIO_REALPATH:
745 if (req->result > 0)
746 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
747 break;
748
749 case EIO_STAT:
750 case EIO_LSTAT:
751 case EIO_FSTAT:
752 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
753
754 if (!(PL_laststatval = req->result))
755 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
756 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
757
758 PUSHs (sv_result);
759 break;
760
761 case EIO_SEEK:
762 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
763 break;
764
765 case EIO_READ:
766 {
767 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
768 *SvEND (req->sv2) = 0;
769 SvPOK_only (req->sv2);
770 SvSETMAGIC (req->sv2);
771 PUSHs (sv_result);
772 }
773 break;
774
775 case EIO_SLURP:
776 {
777 if (req->result >= 0)
778 {
779 /* if length was originally not known, we steal the malloc'ed memory */
780 if (req->flags & EIO_FLAG_PTR2_FREE)
781 {
782 req->flags &= ~EIO_FLAG_PTR2_FREE;
783 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
784 }
785 else
786 {
787 SvCUR_set (req->sv2, req->result);
788 *SvEND (req->sv2) = 0;
789 SvPOK_only (req->sv2);
790 }
791
792 SvSETMAGIC (req->sv2);
793 }
794
795 PUSHs (sv_result);
796 }
797 break;
798
799 case EIO_CUSTOM:
800 if (req->feed == fiemap)
801 {
802#if HAVE_FIEMAP
803 if (!req->result)
804 {
805 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
806
807 if (fiemap->fm_extent_count)
808 {
809 AV *av = newAV ();
810 int i;
811
812 while (fiemap->fm_mapped_extents)
813 {
814 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
815 AV *ext_av = newAV ();
816
817 av_store (ext_av, 3, newSVuv (extent->fe_flags));
818 av_store (ext_av, 2, newSVval64 (extent->fe_length));
819 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
820 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
821
822 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
823 }
824
825 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
826 }
827 else
828 {
829 SvIV_set (sv_result, fiemap->fm_mapped_extents);
830 PUSHs (sv_result);
831 }
832 }
833#endif
834 }
835 else
836 PUSHs (sv_result);
837 break;
838
839#if 0
840 case EIO_CLOSE:
841 PerlIOUnix_refcnt_dec (req->int1);
842 break;
843#endif
844
845 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
846 if (req->result > 0)
847 SvIV_set (sv_result, 0);
848 /* FALLTHROUGH */
849
850 default:
851 PUSHs (sv_result);
852 break;
853 }
854
855 errno = req->errorno;
856
857 PUTBACK;
858 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
859 SPAGAIN;
860
861 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
862 SvREFCNT_dec (sv_result);
863 else
864 sv_result_cache = sv_result;
865
866 FREETMPS;
867 LEAVE;
868
869 PUTBACK;
699 } 870 }
700 while (type != REQ_QUIT);
701 871
872 return !!SvTRUE (ERRSV);
873}
874
875static void
876req_destroy (aio_req req)
877{
878 if (req->self)
879 {
880 sv_unmagic (req->self, PERL_MAGIC_ext);
881 SvREFCNT_dec (req->self);
882 }
883
884 SvREFCNT_dec (req->sv1);
885 SvREFCNT_dec (req->sv2);
886 SvREFCNT_dec (req->sv3);
887 SvREFCNT_dec (req->sv4);
888 SvREFCNT_dec (req->callback);
889
890 free (req);
891}
892
893static void
894req_cancel_subs (aio_req grp)
895{
896 if (grp->type != EIO_GROUP)
702 return 0; 897 return;
898
899 SvREFCNT_dec (grp->sv2);
900 grp->sv2 = 0;
901
902 eio_grp_cancel (grp);
903}
904
905ecb_cold
906static void
907create_respipe (void)
908{
909 if (s_epipe_renew (&respipe))
910 croak ("IO::AIO: unable to initialize result pipe");
911}
912
913static void
914poll_wait (void)
915{
916 while (eio_nreqs ())
917 {
918 int size;
919
920 X_LOCK (EIO_POOL->reslock);
921 size = EIO_POOL->res_queue.size;
922 X_UNLOCK (EIO_POOL->reslock);
923
924 if (size)
925 return;
926
927 etp_maybe_start_thread (EIO_POOL);
928
929 s_epipe_wait (&respipe);
930 }
931}
932
933static int
934poll_cb (void)
935{
936 for (;;)
937 {
938 int res = eio_poll ();
939
940 if (res > 0)
941 croak (0);
942
943 if (!max_outstanding || max_outstanding > eio_nreqs ())
944 return res;
945
946 poll_wait ();
947 }
948}
949
950ecb_cold
951static void
952reinit (void)
953{
954 create_respipe ();
955
956 if (eio_init (want_poll, done_poll) < 0)
957 croak ("IO::AIO: unable to initialise eio library");
703} 958}
704 959
705/*****************************************************************************/ 960/*****************************************************************************/
706 961
707static void atfork_prepare (void) 962static SV *
963get_cb (SV *cb_sv)
708{ 964{
709 pthread_mutex_lock (&reqlock); 965 SvGETMAGIC (cb_sv);
710 pthread_mutex_lock (&reslock); 966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
711#if !HAVE_PREADWRITE
712 pthread_mutex_lock (&preadwritelock);
713#endif
714#if !HAVE_READDIR_R
715 pthread_mutex_lock (&readdirlock);
716#endif
717} 967}
718 968
719static void atfork_parent (void) 969ecb_noinline
970static aio_req ecb_noinline
971dreq (SV *callback)
720{ 972{
721#if !HAVE_READDIR_R 973 SV *cb_cv;
722 pthread_mutex_unlock (&readdirlock);
723#endif
724#if !HAVE_PREADWRITE
725 pthread_mutex_unlock (&preadwritelock);
726#endif
727 pthread_mutex_unlock (&reslock);
728 pthread_mutex_unlock (&reqlock);
729}
730
731static void atfork_child (void)
732{
733 aio_req prv; 974 aio_req req;
975 int req_pri = next_pri;
976 next_pri = EIO_PRI_DEFAULT;
734 977
735 started = 0; 978 cb_cv = get_cb (callback);
736 979
737 while (reqs) 980 req = calloc (sizeof (*req), 1);
981 if (!req)
982 croak ("out of memory during eio_req allocation");
983
984 req->callback = SvREFCNT_inc (cb_cv);
985 req->pri = req_pri;
986
987 return req;
988}
989
990#define dREQ \
991 aio_req req = dreq (callback); \
992
993#define REQ_SEND \
994 PUTBACK; \
995 req_submit (req); \
996 SPAGAIN; \
997 \
998 if (GIMME_V != G_VOID) \
999 XPUSHs (req_sv (req, aio_req_stash));
1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1002ecb_inline
1003void
1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1005{
1006 if (expect_false (SvROK (path)))
738 { 1007 {
739 prv = reqs; 1008 SV *rv = SvRV (path);
740 reqs = prv->next; 1009 SV *wdob;
741 free_req (prv); 1010
1011 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
1012 {
1013 path = AvARRAY (rv)[1];
1014 wdob = AvARRAY (rv)[0];
1015
1016 if (SvOK (wdob))
1017 {
1018 *wd = SvAIO_WD (wdob);
1019 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
1020 }
1021 else
1022 *wd = EIO_INVALID_WD;
1023 }
1024 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1025 {
1026 *wd = (aio_wd)(long)SvIVX (rv);
1027 *wdsv = SvREFCNT_inc_NN (rv);
1028 *ptr = ".";
1029 return; /* path set to "." */
1030 }
1031 else
1032 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
742 } 1033 }
743 1034
744 reqs = reqe = 0; 1035 *pathsv = newSVsv (path);
745 1036 *ptr = SvPVbyte_nolen (*pathsv);
746 while (ress) 1037}
1038
1039ecb_noinline
1040static void
1041req_set_path1 (aio_req req, SV *path)
1042{
1043 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1044}
1045
1046ecb_noinline
1047static void
1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1049{
1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1051
1052 switch (SvTYPE (rv))
747 { 1053 {
748 prv = ress; 1054 case SVt_PVIO:
749 ress = prv->next; 1055 case SVt_PVLV:
750 free_req (prv); 1056 case SVt_PVGV:
1057 req->type = type_fh;
1058 req->sv1 = newSVsv (fh_or_path);
1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1060 break;
1061
1062 default:
1063 req->type = type_path;
1064 req_set_path1 (req, fh_or_path);
1065 break;
751 } 1066 }
752
753 ress = rese = 0;
754
755 close (respipe [0]);
756 close (respipe [1]);
757 create_pipe ();
758
759 atfork_parent ();
760} 1067}
761 1068
762#define dREQ \ 1069/*****************************************************************************/
763 aio_req req; \ 1070
764 \ 1071static void
765 if (SvOK (callback) && !SvROK (callback)) \ 1072ts_set (struct timespec *ts, NV value)
766 croak ("clalback must be undef or of reference type"); \ 1073{
767 \ 1074 ts->tv_sec = value;
768 Newz (0, req, 1, aio_cb); \ 1075 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
769 if (!req) \ 1076}
770 croak ("out of memory during aio_req allocation"); \ 1077
771 \ 1078static NV
772 req->callback = newSVsv (callback); 1079ts_get (const struct timespec *ts)
773 1080{
1081 return ts->tv_sec + ts->tv_nsec * 1e-9;
1082}
1083
1084/*****************************************************************************/
1085
1086XS(boot_IO__AIO) ecb_cold;
1087
774MODULE = IO::AIO PACKAGE = IO::AIO 1088MODULE = IO::AIO PACKAGE = IO::AIO
775 1089
776PROTOTYPES: ENABLE 1090PROTOTYPES: ENABLE
777 1091
778BOOT: 1092BOOT:
779{ 1093{
780 create_pipe (); 1094 static const struct {
781 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1095 const char *name;
782} 1096 IV iv;
1097 } *civ, const_iv[] = {
1098# define const_niv(name, value) { # name, (IV) value },
1099# define const_iv(name) { # name, (IV) name },
1100# define const_eio(name) { # name, (IV) EIO_ ## name },
783 1101
1102 /* you have to re-run ./gendef0 after adding/removing any constants here */
1103 /* the first block can be undef if missing */
1104 const_iv (ENOSYS)
1105 const_iv (EXDEV)
1106 const_iv (EBADR)
1107
1108 /* for lseek */
1109 const_iv (SEEK_DATA)
1110 const_iv (SEEK_HOLE)
1111
1112 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1113 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1114 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1115 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1116 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1117 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1118
1119 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1120 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1121 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1122 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1123 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1124
1125 /* the second block will be 0 when missing */
1126 const_iv (O_ACCMODE)
1127
1128 const_iv (O_RDONLY)
1129 const_iv (O_WRONLY)
1130 const_iv (O_RDWR)
1131 const_iv (O_CREAT)
1132 const_iv (O_TRUNC)
1133 const_iv (O_EXCL)
1134 const_iv (O_APPEND)
1135
1136 const_iv (O_ASYNC)
1137 const_iv (O_DIRECT)
1138 const_iv (O_NOATIME)
1139
1140 const_iv (O_CLOEXEC)
1141 const_iv (O_NOCTTY)
1142 const_iv (O_NOFOLLOW)
1143 const_iv (O_NONBLOCK)
1144 const_iv (O_EXEC)
1145 const_iv (O_SEARCH)
1146 const_iv (O_DIRECTORY)
1147 const_iv (O_DSYNC)
1148 const_iv (O_RSYNC)
1149 const_iv (O_SYNC)
1150 const_iv (O_PATH)
1151 const_iv (O_TMPFILE)
1152 const_iv (O_TTY_INIT)
1153
1154 const_iv (S_IFIFO)
1155 const_iv (S_IFCHR)
1156 const_iv (S_IFBLK)
1157 const_iv (S_IFLNK)
1158 const_iv (S_IFREG)
1159 const_iv (S_IFDIR)
1160 const_iv (S_IFWHT)
1161 const_iv (S_IFSOCK)
1162 const_iv (S_IFMT)
1163
1164 const_iv (ST_RDONLY)
1165 const_iv (ST_NOSUID)
1166 const_iv (ST_NODEV)
1167 const_iv (ST_NOEXEC)
1168 const_iv (ST_SYNCHRONOUS)
1169 const_iv (ST_MANDLOCK)
1170 const_iv (ST_WRITE)
1171 const_iv (ST_APPEND)
1172 const_iv (ST_IMMUTABLE)
1173 const_iv (ST_NOATIME)
1174 const_iv (ST_NODIRATIME)
1175 const_iv (ST_RELATIME)
1176
1177 const_iv (PROT_NONE)
1178 const_iv (PROT_EXEC)
1179 const_iv (PROT_READ)
1180 const_iv (PROT_WRITE)
1181
1182 const_iv (MAP_PRIVATE)
1183 const_iv (MAP_SHARED)
1184 const_iv (MAP_FIXED)
1185 const_iv (MAP_ANONYMOUS)
1186
1187 /* linuxish */
1188 const_iv (MAP_LOCKED)
1189 const_iv (MAP_NORESERVE)
1190 const_iv (MAP_POPULATE)
1191 const_iv (MAP_NONBLOCK)
1192 const_iv (MAP_GROWSDOWN)
1193 const_iv (MAP_32BIT)
1194 const_iv (MAP_HUGETLB)
1195 const_iv (MAP_STACK)
1196
1197 const_iv (MREMAP_MAYMOVE)
1198 const_iv (MREMAP_FIXED)
1199
1200 const_iv (F_DUPFD_CLOEXEC)
1201
1202 const_iv (MSG_CMSG_CLOEXEC)
1203 const_iv (SOCK_CLOEXEC)
1204
1205 const_iv (F_OFD_GETLK)
1206 const_iv (F_OFD_SETLK)
1207 const_iv (F_OFD_GETLKW)
1208
1209 const_iv (FIFREEZE)
1210 const_iv (FITHAW)
1211 const_iv (FITRIM)
1212 const_iv (FICLONE)
1213 const_iv (FICLONERANGE)
1214 const_iv (FIDEDUPERANGE)
1215
1216 const_iv (FS_IOC_GETFLAGS)
1217 const_iv (FS_IOC_SETFLAGS)
1218 const_iv (FS_IOC_GETVERSION)
1219 const_iv (FS_IOC_SETVERSION)
1220 const_iv (FS_IOC_FIEMAP)
1221 const_iv (FS_IOC_FSGETXATTR)
1222 const_iv (FS_IOC_FSSETXATTR)
1223 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1224 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1225 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1226
1227 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1228
1229 const_iv (FS_SECRM_FL)
1230 const_iv (FS_UNRM_FL)
1231 const_iv (FS_COMPR_FL)
1232 const_iv (FS_SYNC_FL)
1233 const_iv (FS_IMMUTABLE_FL)
1234 const_iv (FS_APPEND_FL)
1235 const_iv (FS_NODUMP_FL)
1236 const_iv (FS_NOATIME_FL)
1237 const_iv (FS_DIRTY_FL)
1238 const_iv (FS_COMPRBLK_FL)
1239 const_iv (FS_NOCOMP_FL)
1240 const_iv (FS_ENCRYPT_FL)
1241 const_iv (FS_BTREE_FL)
1242 const_iv (FS_INDEX_FL)
1243 const_iv (FS_JOURNAL_DATA_FL)
1244 const_iv (FS_NOTAIL_FL)
1245 const_iv (FS_DIRSYNC_FL)
1246 const_iv (FS_TOPDIR_FL)
1247 const_iv (FS_FL_USER_MODIFIABLE)
1248
1249 const_iv (FS_XFLAG_REALTIME)
1250 const_iv (FS_XFLAG_PREALLOC)
1251 const_iv (FS_XFLAG_IMMUTABLE)
1252 const_iv (FS_XFLAG_APPEND)
1253 const_iv (FS_XFLAG_SYNC)
1254 const_iv (FS_XFLAG_NOATIME)
1255 const_iv (FS_XFLAG_NODUMP)
1256 const_iv (FS_XFLAG_RTINHERIT)
1257 const_iv (FS_XFLAG_PROJINHERIT)
1258 const_iv (FS_XFLAG_NOSYMLINKS)
1259 const_iv (FS_XFLAG_EXTSIZE)
1260 const_iv (FS_XFLAG_EXTSZINHERIT)
1261 const_iv (FS_XFLAG_NODEFRAG)
1262 const_iv (FS_XFLAG_FILESTREAM)
1263 const_iv (FS_XFLAG_DAX)
1264 const_iv (FS_XFLAG_HASATTR)
1265
1266 const_iv (FIEMAP_FLAG_SYNC)
1267 const_iv (FIEMAP_FLAG_XATTR)
1268 const_iv (FIEMAP_FLAGS_COMPAT)
1269 const_iv (FIEMAP_EXTENT_LAST)
1270 const_iv (FIEMAP_EXTENT_UNKNOWN)
1271 const_iv (FIEMAP_EXTENT_DELALLOC)
1272 const_iv (FIEMAP_EXTENT_ENCODED)
1273 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1274 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1275 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1276 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1277 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1278 const_iv (FIEMAP_EXTENT_MERGED)
1279 const_iv (FIEMAP_EXTENT_SHARED)
1280
1281 const_iv (SPLICE_F_MOVE)
1282 const_iv (SPLICE_F_NONBLOCK)
1283 const_iv (SPLICE_F_MORE)
1284 const_iv (SPLICE_F_GIFT)
1285
1286 const_iv (EFD_CLOEXEC)
1287 const_iv (EFD_NONBLOCK)
1288 const_iv (EFD_SEMAPHORE)
1289
1290 const_iv (MFD_CLOEXEC)
1291 const_iv (MFD_ALLOW_SEALING)
1292 const_iv (MFD_HUGETLB)
1293
1294 const_iv (CLOCK_REALTIME)
1295 const_iv (CLOCK_MONOTONIC)
1296 const_iv (CLOCK_BOOTTIME)
1297 const_iv (CLOCK_REALTIME_ALARM)
1298 const_iv (CLOCK_BOOTTIME_ALARM)
1299
1300 const_iv (TFD_NONBLOCK)
1301 const_iv (TFD_CLOEXEC)
1302
1303 const_iv (TFD_TIMER_ABSTIME)
1304 const_iv (TFD_TIMER_CANCEL_ON_SET)
1305
1306 const_iv (STATX_TYPE)
1307 const_iv (STATX_MODE)
1308 const_iv (STATX_NLINK)
1309 const_iv (STATX_UID)
1310 const_iv (STATX_GID)
1311 const_iv (STATX_ATIME)
1312 const_iv (STATX_MTIME)
1313 const_iv (STATX_CTIME)
1314 const_iv (STATX_INO)
1315 const_iv (STATX_SIZE)
1316 const_iv (STATX_BLOCKS)
1317 const_iv (STATX_BASIC_STATS)
1318 const_iv (STATX_ALL)
1319 const_iv (STATX_BTIME)
1320 const_iv (STATX_ATTR_COMPRESSED)
1321 const_iv (STATX_ATTR_IMMUTABLE)
1322 const_iv (STATX_ATTR_APPEND)
1323 const_iv (STATX_ATTR_NODUMP)
1324 const_iv (STATX_ATTR_ENCRYPTED)
1325 const_iv (STATX_ATTR_AUTOMOUNT)
1326
1327 /* these are libeio constants, and are independent of gendef0 */
1328 const_eio (SEEK_SET)
1329 const_eio (SEEK_CUR)
1330 const_eio (SEEK_END)
1331
1332 const_eio (MCL_FUTURE)
1333 const_eio (MCL_CURRENT)
1334 const_eio (MCL_ONFAULT)
1335
1336 const_eio (MS_ASYNC)
1337 const_eio (MS_INVALIDATE)
1338 const_eio (MS_SYNC)
1339
1340 const_eio (MT_MODIFY)
1341
1342 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1343 const_eio (SYNC_FILE_RANGE_WRITE)
1344 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1345
1346 const_eio (FALLOC_FL_KEEP_SIZE)
1347 const_eio (FALLOC_FL_PUNCH_HOLE)
1348 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1349 const_eio (FALLOC_FL_ZERO_RANGE)
1350 const_eio (FALLOC_FL_INSERT_RANGE)
1351 const_eio (FALLOC_FL_UNSHARE_RANGE)
1352
1353 const_eio (RENAME_NOREPLACE)
1354 const_eio (RENAME_EXCHANGE)
1355 const_eio (RENAME_WHITEOUT)
1356
1357 const_eio (READDIR_DENTS)
1358 const_eio (READDIR_DIRS_FIRST)
1359 const_eio (READDIR_STAT_ORDER)
1360 const_eio (READDIR_FOUND_UNKNOWN)
1361
1362 const_eio (DT_UNKNOWN)
1363 const_eio (DT_FIFO)
1364 const_eio (DT_CHR)
1365 const_eio (DT_DIR)
1366 const_eio (DT_BLK)
1367 const_eio (DT_REG)
1368 const_eio (DT_LNK)
1369 const_eio (DT_SOCK)
1370 const_eio (DT_WHT)
1371 };
1372
1373 aio_stash = gv_stashpv ("IO::AIO" , 1);
1374 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1375 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1376 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1377
1378 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1379 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1380
1381 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1382
1383 /* allocate dummy pipe fd for aio_close */
1384 {
1385 int pipefd [2];
1386
1387 if (
1388#ifdef _WIN32
1389 _pipe (pipefd, 1, _O_BINARY) < 0
1390#else
1391 pipe (pipefd) < 0
1392 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1393#endif
1394 || close (pipefd [1]) < 0
1395 )
1396 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1397
1398 close_fd = pipefd [0];
1399 }
1400
1401 reinit ();
1402}
1403
784void 1404void
785min_parallel(nthreads) 1405reinit ()
786 int nthreads 1406 PROTOTYPE:
1407
1408void
1409max_poll_reqs (unsigned int nreqs)
787 PROTOTYPE: $ 1410 PROTOTYPE: $
1411 CODE:
1412 eio_set_max_poll_reqs (nreqs);
788 1413
789void 1414void
790max_parallel(nthreads) 1415max_poll_time (double nseconds)
791 int nthreads
792 PROTOTYPE: $ 1416 PROTOTYPE: $
793
794int
795max_outstanding(nreqs)
796 int nreqs
797 PROTOTYPE: $
798 CODE: 1417 CODE:
799 RETVAL = max_outstanding; 1418 eio_set_max_poll_time (nseconds);
1419
1420void
1421min_parallel (unsigned int nthreads)
1422 PROTOTYPE: $
1423 CODE:
1424 eio_set_min_parallel (nthreads);
1425
1426void
1427max_parallel (unsigned int nthreads)
1428 PROTOTYPE: $
1429 CODE:
1430 eio_set_max_parallel (nthreads);
1431
1432void
1433max_idle (unsigned int nthreads)
1434 PROTOTYPE: $
1435 CODE:
1436 eio_set_max_idle (nthreads);
1437
1438void
1439idle_timeout (unsigned int seconds)
1440 PROTOTYPE: $
1441 CODE:
1442 eio_set_idle_timeout (seconds);
1443
1444void
1445max_outstanding (unsigned int maxreqs)
1446 PROTOTYPE: $
1447 CODE:
800 max_outstanding = nreqs; 1448 max_outstanding = maxreqs;
801 1449
802void 1450void
803aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1451aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
804 SV * pathname
805 int flags
806 int mode
807 SV * callback
808 PROTOTYPE: $$$;$
809 CODE: 1452 PPCODE:
810{ 1453{
811 dREQ; 1454 dREQ;
812 1455
1456 req->type = EIO_WD_OPEN;
1457 req_set_path1 (req, pathname);
1458
1459 REQ_SEND;
1460}
1461
1462void
1463aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1464 PPCODE:
1465{
1466 dREQ;
1467
813 req->type = REQ_OPEN; 1468 req->type = EIO_OPEN;
814 req->data = newSVsv (pathname); 1469 req_set_path1 (req, pathname);
815 req->dataptr = SvPVbyte_nolen (req->data);
816 req->fd = flags; 1470 req->int1 = flags;
817 req->mode = mode; 1471 req->int2 = mode;
818 1472
819 send_req (req); 1473 REQ_SEND;
820} 1474}
821 1475
822void 1476void
823aio_close(fh,callback=&PL_sv_undef) 1477aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
824 SV * fh
825 SV * callback
826 PROTOTYPE: $;$
827 ALIAS: 1478 ALIAS:
828 aio_close = REQ_CLOSE
829 aio_fsync = REQ_FSYNC 1479 aio_fsync = EIO_FSYNC
830 aio_fdatasync = REQ_FDATASYNC 1480 aio_fdatasync = EIO_FDATASYNC
1481 aio_syncfs = EIO_SYNCFS
831 CODE: 1482 PPCODE:
832{ 1483{
1484 int fd = s_fileno_croak (fh, 0);
833 dREQ; 1485 dREQ;
834 1486
835 req->type = ix; 1487 req->type = ix;
836 req->fh = newSVsv (fh); 1488 req->sv1 = newSVsv (fh);
837 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1489 req->int1 = fd;
838 1490
839 send_req (req); 1491 REQ_SEND;
840} 1492}
841 1493
842void 1494void
1495aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1496 PPCODE:
1497{
1498 int fd = s_fileno_croak (fh, 0);
1499 dREQ;
1500
1501 req->type = EIO_SYNC_FILE_RANGE;
1502 req->sv1 = newSVsv (fh);
1503 req->int1 = fd;
1504 req->offs = offset;
1505 req->size = nbytes;
1506 req->int2 = flags;
1507
1508 REQ_SEND;
1509}
1510
1511void
1512aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1513 PPCODE:
1514{
1515 int fd = s_fileno_croak (fh, 0);
1516 dREQ;
1517
1518 req->type = EIO_FALLOCATE;
1519 req->sv1 = newSVsv (fh);
1520 req->int1 = fd;
1521 req->int2 = mode;
1522 req->offs = offset;
1523 req->size = len;
1524
1525 REQ_SEND;
1526}
1527
1528void
1529aio_close (SV *fh, SV *callback = &PL_sv_undef)
1530 PPCODE:
1531{
1532 int fd = s_fileno_croak (fh, 0);
1533 dREQ;
1534#if 0
1535 /* partially duplicate logic in s_fileno */
1536 SvGETMAGIC (fh);
1537
1538 if (SvROK (fh))
1539 {
1540 fh = SvRV (fh);
1541 SvGETMAGIC (fh);
1542 }
1543
1544 if (SvTYPE (fh) == SVt_PVGV)
1545 {
1546 /* perl filehandle */
1547 PerlIOUnix_refcnt_inc (fd);
1548 do_close ((GV *)fh, 1);
1549
1550 req->type = EIO_CLOSE;
1551 req->int1 = fd;
1552 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1553 }
1554 else
1555#endif
1556 {
1557 /* fd number */
1558 req->type = EIO_DUP2;
1559 req->int1 = close_fd;
1560 req->sv2 = newSVsv (fh);
1561 req->int2 = fd;
1562 }
1563
1564 REQ_SEND;
1565}
1566
1567void
1568aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1569 PPCODE:
1570{
1571 int fd = s_fileno_croak (fh, 0);
1572 dREQ;
1573
1574 req->type = EIO_SEEK;
1575 req->sv1 = newSVsv (fh);
1576 req->int1 = fd;
1577 req->offs = SvVAL64 (offset);
1578 req->int2 = whence;
1579
1580 REQ_SEND;
1581}
1582
1583void
843aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1584aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
844 SV * fh
845 UV offset
846 UV length
847 SV * data
848 UV dataoffset
849 SV * callback
850 ALIAS: 1585 ALIAS:
851 aio_read = REQ_READ 1586 aio_read = EIO_READ
852 aio_write = REQ_WRITE 1587 aio_write = EIO_WRITE
853 PROTOTYPE: $$$$$;$
854 CODE: 1588 PPCODE:
855{ 1589{
856 aio_req req;
857 STRLEN svlen; 1590 STRLEN svlen;
1591 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
858 char *svptr = SvPVbyte (data, svlen); 1592 char *svptr = SvPVbyte (data, svlen);
859 1593 UV len = SvUV (length);
860 SvUPGRADE (data, SVt_PV);
861 SvPOK_on (data);
862 1594
863 if (dataoffset < 0) 1595 if (dataoffset < 0)
864 dataoffset += svlen; 1596 dataoffset += svlen;
865 1597
866 if (dataoffset < 0 || dataoffset > svlen) 1598 if (dataoffset < 0 || dataoffset > svlen)
867 croak ("data offset outside of string"); 1599 croak ("dataoffset outside of data scalar");
868 1600
869 if (ix == REQ_WRITE) 1601 if (ix == EIO_WRITE)
870 { 1602 {
871 /* write: check length and adjust. */ 1603 /* write: check length and adjust. */
872 if (length < 0 || length + dataoffset > svlen) 1604 if (!SvOK (length) || len + dataoffset > svlen)
873 length = svlen - dataoffset; 1605 len = svlen - dataoffset;
874 } 1606 }
875 else 1607 else
876 { 1608 {
877 /* read: grow scalar as necessary */ 1609 /* read: check type and grow scalar as necessary */
1610 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
878 svptr = SvGROW (data, length + dataoffset); 1611 svptr = sv_grow (data, len + dataoffset + 1);
1612 else if (SvCUR (data) < len + dataoffset)
1613 croak ("length + dataoffset outside of scalar, and cannot grow");
879 } 1614 }
880
881 if (length < 0)
882 croak ("length must not be negative");
883 1615
884 { 1616 {
885 dREQ; 1617 dREQ;
886 1618
887 req->type = ix; 1619 req->type = ix;
888 req->fh = newSVsv (fh); 1620 req->sv1 = newSVsv (fh);
889 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1621 req->int1 = fd;
890 : IoOFP (sv_2io (fh))); 1622 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
891 req->offset = offset; 1623 req->size = len;
892 req->length = length;
893 req->data = SvREFCNT_inc (data); 1624 req->sv2 = SvREFCNT_inc (data);
894 req->dataptr = (char *)svptr + dataoffset; 1625 req->ptr2 = (char *)svptr + dataoffset;
1626 req->stroffset = dataoffset;
895 1627
896 if (!SvREADONLY (data)) 1628 if (!SvREADONLY (data))
897 { 1629 {
898 SvREADONLY_on (data); 1630 SvREADONLY_on (data);
899 req->data2ptr = (void *)data; 1631 req->flags |= FLAG_SV2_RO_OFF;
900 } 1632 }
901 1633
902 send_req (req); 1634 REQ_SEND;
903 } 1635 }
904} 1636}
905 1637
906void 1638void
907aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1639aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
908 SV * out_fh
909 SV * in_fh
910 UV in_offset
911 UV length
912 SV * callback
913 PROTOTYPE: $$$$;$
914 CODE:
915{
916 dREQ;
917
918 req->type = REQ_SENDFILE;
919 req->fh = newSVsv (out_fh);
920 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
921 req->fh2 = newSVsv (in_fh);
922 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
923 req->offset = in_offset;
924 req->length = length;
925
926 send_req (req);
927}
928
929void
930aio_readahead(fh,offset,length,callback=&PL_sv_undef)
931 SV * fh
932 UV offset
933 IV length
934 SV * callback
935 PROTOTYPE: $$$;$
936 CODE:
937{
938 dREQ;
939
940 req->type = REQ_READAHEAD;
941 req->fh = newSVsv (fh);
942 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
943 req->offset = offset;
944 req->length = length;
945
946 send_req (req);
947}
948
949void
950aio_stat(fh_or_path,callback=&PL_sv_undef)
951 SV * fh_or_path
952 SV * callback
953 ALIAS: 1640 ALIAS:
954 aio_stat = REQ_STAT 1641 aio_ioctl = EIO_IOCTL
955 aio_lstat = REQ_LSTAT 1642 aio_fcntl = EIO_FCNTL
956 CODE: 1643 PPCODE:
957{ 1644{
958 dREQ; 1645 int fd = s_fileno_croak (fh, 0);
1646 char *svptr;
959 1647
960 New (0, req->statdata, 1, Stat_t); 1648 if (SvPOK (arg) || !SvNIOK (arg))
961 if (!req->statdata)
962 { 1649 {
963 free_req (req); 1650 STRLEN svlen;
964 croak ("out of memory during aio_req->statdata allocation"); 1651 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
965 } 1652#ifdef IOCPARM_LEN
1653 STRLEN need = IOCPARM_LEN (request);
1654#else
1655 STRLEN need = 256;
1656#endif
966 1657
967 if (SvPOK (fh_or_path)) 1658 if (svlen < need)
968 { 1659 svptr = SvGROW (arg, need);
969 req->type = ix;
970 req->data = newSVsv (fh_or_path);
971 req->dataptr = SvPVbyte_nolen (req->data);
972 } 1660 }
973 else 1661 else
1662 svptr = (char *)SvIV (arg);
1663
974 { 1664 {
1665 dREQ;
1666
975 req->type = REQ_FSTAT; 1667 req->type = ix;
976 req->fh = newSVsv (fh_or_path); 1668 req->sv1 = newSVsv (fh);
977 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1669 req->int1 = fd;
1670 req->int2 = (long)request;
1671 req->sv2 = SvREFCNT_inc (arg);
1672 req->ptr2 = svptr;
1673
1674 REQ_SEND;
978 } 1675 }
979
980 send_req (req);
981} 1676}
982 1677
983void 1678void
984aio_unlink(pathname,callback=&PL_sv_undef) 1679aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
985 SV * pathname
986 SV * callback
987 ALIAS: 1680 ALIAS:
988 aio_unlink = REQ_UNLINK 1681 aio_readlink = EIO_READLINK
989 aio_rmdir = REQ_RMDIR 1682 aio_realpath = EIO_REALPATH
1683 PPCODE:
1684{
1685 dREQ;
1686
1687 req->type = ix;
1688 req_set_path1 (req, pathname);
1689
1690 REQ_SEND;
1691}
1692
1693void
1694aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1695 PPCODE:
1696{
1697 int ifd = s_fileno_croak (in_fh , 0);
1698 int ofd = s_fileno_croak (out_fh, 1);
1699 dREQ;
1700
1701 req->type = EIO_SENDFILE;
1702 req->sv1 = newSVsv (out_fh);
1703 req->int1 = ofd;
1704 req->sv2 = newSVsv (in_fh);
1705 req->int2 = ifd;
1706 req->offs = in_offset;
1707 req->size = length;
1708
1709 REQ_SEND;
1710}
1711
1712void
1713aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1714 PPCODE:
1715{
1716 int fd = s_fileno_croak (fh, 0);
1717 dREQ;
1718
1719 req->type = EIO_READAHEAD;
1720 req->sv1 = newSVsv (fh);
1721 req->int1 = fd;
1722 req->offs = offset;
1723 req->size = length;
1724
1725 REQ_SEND;
1726}
1727
1728void
1729aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1730 ALIAS:
1731 aio_stat = EIO_STAT
1732 aio_lstat = EIO_LSTAT
1733 aio_statvfs = EIO_STATVFS
1734 PPCODE:
1735{
1736 dREQ;
1737
1738 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1739
1740 REQ_SEND;
1741}
1742
1743void
1744st_xtime ()
1745 ALIAS:
1746 st_atime = 0x01
1747 st_mtime = 0x02
1748 st_ctime = 0x04
1749 st_btime = 0x08
1750 st_xtime = 0x0f
1751 PPCODE:
1752 EXTEND (SP, 4);
1753 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1754 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1755 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1756 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1757
1758void
1759st_xtimensec ()
1760 ALIAS:
1761 st_atimensec = 0x01
1762 st_mtimensec = 0x02
1763 st_ctimensec = 0x04
1764 st_btimensec = 0x08
1765 st_xtimensec = 0x0f
1766 st_btimesec = 0x10
1767 st_gen = 0x20
1768 PPCODE:
1769 EXTEND (SP, 4);
1770 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1771 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1772 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1773 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1774 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1775 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1776
1777UV
1778major (UV dev)
1779 ALIAS:
1780 minor = 1
990 CODE: 1781 CODE:
1782 RETVAL = ix ? minor (dev) : major (dev);
1783 OUTPUT:
1784 RETVAL
1785
1786UV
1787makedev (UV maj, UV min)
1788 CODE:
1789 RETVAL = makedev (maj, min);
1790 OUTPUT:
1791 RETVAL
1792
1793void
1794aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1795 PPCODE:
1796{
1797 dREQ;
1798
1799 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1800 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1801 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1802
1803 REQ_SEND;
1804}
1805
1806void
1807aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1808 PPCODE:
1809{
1810 dREQ;
1811
1812 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1813 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1814
1815 REQ_SEND;
1816}
1817
1818void
1819aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->int2 = mode;
1825 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1826
1827 REQ_SEND;
1828}
1829
1830void
1831aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1832 PPCODE:
1833{
1834 dREQ;
1835
1836 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1837 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1838 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1839
1840 REQ_SEND;
1841}
1842
1843void
1844aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1845 PPCODE:
1846{
1847 dREQ;
1848
1849 req->type = EIO_READDIR;
1850 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1851
1852 if (flags & EIO_READDIR_DENTS)
1853 req->int1 |= EIO_READDIR_CUSTOM2;
1854
1855 req_set_path1 (req, pathname);
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 dREQ;
1865
1866 req->type = EIO_MKDIR;
1867 req->int2 = mode;
1868 req_set_path1 (req, pathname);
1869
1870 REQ_SEND;
1871}
1872
1873void
1874aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1875 ALIAS:
1876 aio_unlink = EIO_UNLINK
1877 aio_rmdir = EIO_RMDIR
1878 aio_readdir = EIO_READDIR
1879 PPCODE:
991{ 1880{
992 dREQ; 1881 dREQ;
993 1882
994 req->type = ix; 1883 req->type = ix;
995 req->data = newSVsv (pathname); 1884 req_set_path1 (req, pathname);
996 req->dataptr = SvPVbyte_nolen (req->data);
997
998 send_req (req);
999}
1000 1885
1886 REQ_SEND;
1887}
1888
1001void 1889void
1002aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1890aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1003 SV * oldpath 1891 ALIAS:
1004 SV * newpath 1892 aio_link = EIO_LINK
1005 SV * callback 1893 aio_symlink = EIO_SYMLINK
1894 aio_rename = EIO_RENAME
1006 CODE: 1895 PPCODE:
1007{ 1896{
1897 eio_wd wd2 = 0;
1008 dREQ; 1898 dREQ;
1009 1899
1010 req->type = REQ_SYMLINK; 1900 req->type = ix;
1011 req->fh = newSVsv (oldpath); 1901 req_set_path1 (req, oldpath);
1012 req->data2ptr = SvPVbyte_nolen (req->fh); 1902 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1013 req->data = newSVsv (newpath); 1903 req->int3 = (long)wd2;
1014 req->dataptr = SvPVbyte_nolen (req->data);
1015 1904
1016 send_req (req); 1905 REQ_SEND;
1017} 1906}
1018 1907
1019void 1908void
1020aio_readdir(pathname,callback=&PL_sv_undef) 1909aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1021 SV * pathname
1022 SV * callback
1023 CODE: 1910 PPCODE:
1024{ 1911{
1912 eio_wd wd2 = 0;
1025 dREQ; 1913 dREQ;
1026 1914
1027 req->type = REQ_READDIR; 1915 req->type = EIO_RENAME;
1028 req->data = newSVsv (pathname); 1916 req_set_path1 (req, oldpath);
1029 req->dataptr = SvPVbyte_nolen (req->data); 1917 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1918 req->int2 = flags;
1919 req->int3 = (long)wd2;
1030 1920
1031 send_req (req); 1921 REQ_SEND;
1032} 1922}
1033 1923
1034void 1924void
1035flush() 1925aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1036 PROTOTYPE: 1926 PPCODE:
1927{
1928 dREQ;
1929
1930 req->type = EIO_MKNOD;
1931 req->int2 = (mode_t)mode;
1932 req->offs = dev;
1933 req_set_path1 (req, pathname);
1934
1935 REQ_SEND;
1936}
1937
1938void
1939aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1940 ALIAS:
1941 aio_mtouch = EIO_MTOUCH
1942 aio_msync = EIO_MSYNC
1943 PPCODE:
1944{
1945 STRLEN svlen;
1946 char *svptr = SvPVbyte (data, svlen);
1947 UV len = SvUV (length);
1948
1949 if (flags < 0)
1950 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1951
1952 if (offset < 0)
1953 offset += svlen;
1954
1955 if (offset < 0 || offset > svlen)
1956 croak ("offset outside of scalar");
1957
1958 if (!SvOK (length) || len + offset > svlen)
1959 len = svlen - offset;
1960
1961 {
1962 dREQ;
1963
1964 req->type = ix;
1965 req->sv2 = SvREFCNT_inc (data);
1966 req->ptr2 = (char *)svptr + offset;
1967 req->size = len;
1968 req->int1 = flags;
1969
1970 REQ_SEND;
1971 }
1972}
1973
1974void
1975aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1976 PPCODE:
1977{
1978 STRLEN svlen;
1979 char *svptr = SvPVbyte (data, svlen);
1980 UV len = SvUV (length);
1981
1982 if (offset < 0)
1983 offset += svlen;
1984
1985 if (offset < 0 || offset > svlen)
1986 croak ("offset outside of scalar");
1987
1988 if (!SvOK (length) || len + offset > svlen)
1989 len = svlen - offset;
1990
1991 {
1992 dREQ;
1993
1994 req->type = EIO_MLOCK;
1995 req->sv2 = SvREFCNT_inc (data);
1996 req->ptr2 = (char *)svptr + offset;
1997 req->size = len;
1998
1999 REQ_SEND;
2000 }
2001}
2002
2003void
2004aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2005 PPCODE:
2006{
2007 dREQ;
2008
2009 req->type = EIO_MLOCKALL;
2010 req->int1 = flags;
2011
2012 REQ_SEND;
2013}
2014
2015void
2016aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2017 PPCODE:
2018{
2019 int fd = s_fileno_croak (fh, 0);
2020 dREQ;
2021
2022 req->type = EIO_CUSTOM;
2023 req->sv1 = newSVsv (fh);
2024 req->int1 = fd;
2025
2026 req->feed = fiemap;
2027#if HAVE_FIEMAP
2028 /* keep our fingers crossed that the next two types are 64 bit */
2029 req->offs = start;
2030 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2031 req->int2 = flags;
2032 req->int3 = SvOK (count) ? SvIV (count) : -1;
2033#endif
2034
2035 REQ_SEND;
2036}
2037
2038void
2039aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2040 PPCODE:
2041{
2042 char *svptr = 0;
2043
2044 sv_clear_foreign (data);
2045
2046 if (length) /* known length, directly read into scalar */
2047 {
2048 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2049 svptr = sv_grow (data, length + 1);
2050 else if (SvCUR (data) < length)
2051 croak ("length outside of scalar, and cannot grow");
2052 else
2053 svptr = SvPVbyte_nolen (data);
2054 }
2055
2056 {
2057 dREQ;
2058
2059 req->type = EIO_SLURP;
2060 req_set_path1 (req, pathname);
2061 req->offs = offset;
2062 req->size = length;
2063 req->sv2 = SvREFCNT_inc (data);
2064 req->ptr2 = svptr;
2065
2066 if (!SvREADONLY (data))
2067 {
2068 SvREADONLY_on (data);
2069 req->flags |= FLAG_SV2_RO_OFF;
2070 }
2071
2072 REQ_SEND;
2073 }
2074}
2075
2076void
2077aio_busy (double delay, SV *callback = &PL_sv_undef)
2078 PPCODE:
2079{
2080 dREQ;
2081
2082 req->type = EIO_BUSY;
2083 req->nv1 = delay < 0. ? 0. : delay;
2084
2085 REQ_SEND;
2086}
2087
2088void
2089aio_group (SV *callback = &PL_sv_undef)
2090 PPCODE:
2091{
2092 dREQ;
2093
2094 req->type = EIO_GROUP;
2095
2096 PUTBACK;
2097 req_submit (req);
2098 SPAGAIN;
2099
2100 XPUSHs (req_sv (req, aio_grp_stash));
2101}
2102
2103void
2104aio_nop (SV *callback = &PL_sv_undef)
2105 ALIAS:
2106 aio_nop = EIO_NOP
2107 aio_sync = EIO_SYNC
2108 PPCODE:
2109{
2110 dREQ;
2111
2112 req->type = ix;
2113
2114 REQ_SEND;
2115}
2116
2117int
2118aioreq_pri (int pri = NO_INIT)
1037 CODE: 2119 CODE:
2120 RETVAL = next_pri;
2121 if (items > 0)
2122 {
2123 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2124 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2125 next_pri = pri;
2126 }
2127 OUTPUT:
2128 RETVAL
2129
2130void
2131aioreq_nice (int nice = 0)
2132 CODE:
2133 nice = next_pri - nice;
2134 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2135 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2136 next_pri = nice;
2137
2138void
2139flush ()
2140 CODE:
1038 while (nreqs) 2141 while (eio_nreqs ())
1039 { 2142 {
1040 poll_wait (); 2143 poll_wait ();
1041 poll_cb (); 2144 poll_cb ();
1042 } 2145 }
1043 2146
1044void 2147int
1045poll() 2148poll ()
1046 PROTOTYPE:
1047 CODE: 2149 CODE:
1048 if (nreqs)
1049 {
1050 poll_wait (); 2150 poll_wait ();
1051 poll_cb (); 2151 RETVAL = poll_cb ();
1052 }
1053
1054int
1055poll_fileno()
1056 PROTOTYPE:
1057 CODE:
1058 RETVAL = respipe [0];
1059 OUTPUT: 2152 OUTPUT:
1060 RETVAL 2153 RETVAL
1061 2154
1062int 2155int
2156poll_fileno ()
2157 CODE:
2158 RETVAL = s_epipe_fd (&respipe);
2159 OUTPUT:
2160 RETVAL
2161
2162int
1063poll_cb(...) 2163poll_cb (...)
1064 PROTOTYPE: 2164 PROTOTYPE:
1065 CODE: 2165 CODE:
1066 RETVAL = poll_cb (); 2166 RETVAL = poll_cb ();
1067 OUTPUT: 2167 OUTPUT:
1068 RETVAL 2168 RETVAL
1069 2169
1070void 2170void
1071poll_wait() 2171poll_wait ()
2172 CODE:
2173 poll_wait ();
2174
2175int
2176nreqs ()
2177 CODE:
2178 RETVAL = eio_nreqs ();
2179 OUTPUT:
2180 RETVAL
2181
2182int
2183nready ()
2184 CODE:
2185 RETVAL = eio_nready ();
2186 OUTPUT:
2187 RETVAL
2188
2189int
2190npending ()
2191 CODE:
2192 RETVAL = eio_npending ();
2193 OUTPUT:
2194 RETVAL
2195
2196int
2197nthreads ()
2198 CODE:
2199 RETVAL = eio_nthreads ();
2200 OUTPUT:
2201 RETVAL
2202
2203int
2204fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2205 CODE:
2206 RETVAL = posix_fadvise (fh, offset, length, advice);
2207 OUTPUT:
2208 RETVAL
2209
2210IV
2211sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2212 CODE:
2213 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2214 OUTPUT:
2215 RETVAL
2216
2217void
2218mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2219 PPCODE:
2220 sv_clear_foreign (scalar);
2221{
2222 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2223 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2224 if (addr == (void *)-1)
2225 XSRETURN_NO;
2226
2227 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2228
2229 if (!(prot & PROT_WRITE))
2230 SvREADONLY_on (scalar);
2231
2232 XSRETURN_YES;
2233}
2234
2235void
2236munmap (SV *scalar)
2237 CODE:
2238 sv_clear_foreign (scalar);
2239
2240SV *
2241mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2242 CODE:
2243{
2244 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2245 void *new;
2246
2247 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2248 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2249
2250 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2251
2252 RETVAL = &PL_sv_no;
2253
2254 if (new != (void *)-1)
2255 {
2256 RETVAL = new == (void *)mg->mg_ptr
2257 ? newSVpvn ("0 but true", 10)
2258 : &PL_sv_yes;
2259
2260 mg->mg_ptr = (char *)new;
2261 mg->mg_obj = (SV *)new_length;
2262
2263 SvPVX (scalar) = mg->mg_ptr;
2264 SvCUR_set (scalar, new_length);
2265 }
2266}
2267 OUTPUT:
2268 RETVAL
2269
2270int
2271madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2272 ALIAS:
2273 mprotect = 1
2274 CODE:
2275{
2276 STRLEN svlen;
2277 void *addr = SvPVbyte (scalar, svlen);
2278 STRLEN len = SvUV (length);
2279
2280 if (offset < 0)
2281 offset += svlen;
2282
2283 if (offset < 0 || offset > svlen)
2284 croak ("offset outside of scalar");
2285
2286 if (!SvOK (length) || len + offset > svlen)
2287 len = svlen - offset;
2288
2289 addr = (void *)(((intptr_t)addr) + offset);
2290 eio_page_align (&addr, &len);
2291
2292 switch (ix)
2293 {
2294 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2295 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2296 }
2297}
2298 OUTPUT:
2299 RETVAL
2300
2301int
2302munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2303 CODE:
2304{
2305 STRLEN svlen;
2306 void *addr = SvPVbyte (scalar, svlen);
2307 size_t len = SvUV (length);
2308
2309 if (offset < 0)
2310 offset += svlen;
2311
2312 if (offset < 0 || offset > svlen)
2313 croak ("offset outside of scalar");
2314
2315 if (!SvOK (length) || len + offset > svlen)
2316 len = svlen - offset;
2317
2318 addr = (void *)(((intptr_t)addr) + offset);
2319 eio_page_align (&addr, &len);
2320#if _POSIX_MEMLOCK_RANGE
2321 RETVAL = munlock (addr, len);
2322#else
2323 RETVAL = EIO_ENOSYS ();
2324#endif
2325}
2326 OUTPUT:
2327 RETVAL
2328
2329int
2330mlockall (int flags)
2331 PROTOTYPE: $;
2332 CODE:
2333 RETVAL = eio_mlockall_sync (flags);
2334 OUTPUT:
2335 RETVAL
2336
2337int
2338munlockall ()
2339 CODE:
2340#if _POSIX_MEMLOCK
2341 munlockall ();
2342#else
2343 RETVAL = EIO_ENOSYS ();
2344#endif
2345 OUTPUT:
2346 RETVAL
2347
2348int
2349statx (SV8 *pathname, int flags, UV mask)
2350 CODE:
2351{
2352 /* undocumented, and might go away, and anyway, should use eio_statx */
2353 SV *wdsv = 0;
2354 SV *pathsv = 0;
2355 eio_wd wd = EIO_CWD;
2356 void *ptr;
2357 int res;
2358
2359 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2360 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2361
2362 SvREFCNT_dec (pathsv);
2363 SvREFCNT_dec (wdsv);
2364}
2365 OUTPUT:
2366 RETVAL
2367
2368U32
2369stx_mode ()
1072 PROTOTYPE: 2370 PROTOTYPE:
1073 CODE: 2371 CODE:
1074 if (nreqs) 2372#if HAVE_STATX
1075 poll_wait (); 2373 RETVAL = stx.stx_mode;
2374#else
2375 XSRETURN_UNDEF;
2376#endif
2377 OUTPUT:
2378 RETVAL
2379
2380#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2381#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2382#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2383#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2384#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2385#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2386#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2387#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2388#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2389#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2390#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2391#define STATX_OFFSET_size statx_offsetof (stx_size)
2392#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2393#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2394#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2395#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2396#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2397#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2398
2399U32
2400stx_mask ()
2401 PROTOTYPE:
2402 ALIAS:
2403 stx_mask = STATX_OFFSET_mask
2404 stx_blksize = STATX_OFFSET_blksize
2405 stx_nlink = STATX_OFFSET_nlink
2406 stx_uid = STATX_OFFSET_uid
2407 stx_gid = STATX_OFFSET_gid
2408 stx_rdev_major = STATX_OFFSET_rdev_major
2409 stx_rdev_minor = STATX_OFFSET_rdev_minor
2410 stx_dev_major = STATX_OFFSET_dev_major
2411 stx_dev_minor = STATX_OFFSET_dev_minor
2412 CODE:
2413#if HAVE_STATX
2414 RETVAL = *(__u32 *)((char *)&stx + ix);
2415#else
2416 XSRETURN_UNDEF;
2417#endif
2418 OUTPUT:
2419 RETVAL
2420
2421VAL64
2422stx_attributes ()
2423 PROTOTYPE:
2424 ALIAS:
2425 stx_attributes = STATX_OFFSET_attributes
2426 stx_ino = STATX_OFFSET_ino
2427 stx_size = STATX_OFFSET_size
2428 stx_blocks = STATX_OFFSET_blocks
2429 stx_attributes_mask = STATX_OFFSET_attributes_mask
2430 CODE:
2431#if HAVE_STATX
2432 RETVAL = *(__u64 *)((char *)&stx + ix);
2433#else
2434 XSRETURN_UNDEF;
2435#endif
2436 OUTPUT:
2437 RETVAL
2438
2439NV
2440stx_atime ()
2441 PROTOTYPE:
2442 ALIAS:
2443 stx_atime = STATX_OFFSET_atime
2444 stx_btime = STATX_OFFSET_btime
2445 stx_ctime = STATX_OFFSET_ctime
2446 stx_mtime = STATX_OFFSET_mtime
2447 CODE:
2448#if HAVE_STATX
2449 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2450 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
2456
2457VAL64
2458stx_atimesec ()
2459 PROTOTYPE:
2460 ALIAS:
2461 stx_atimesec = STATX_OFFSET_atime
2462 stx_btimesec = STATX_OFFSET_btime
2463 stx_ctimesec = STATX_OFFSET_ctime
2464 stx_mtimesec = STATX_OFFSET_mtime
2465 CODE:
2466#if HAVE_STATX
2467 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2468 RETVAL = ts->tv_sec;
2469#else
2470 XSRETURN_UNDEF;
2471#endif
2472 OUTPUT:
2473 RETVAL
2474
2475U32
2476stx_atimensec ()
2477 PROTOTYPE:
2478 ALIAS:
2479 stx_atimensec = STATX_OFFSET_atime
2480 stx_btimensec = STATX_OFFSET_btime
2481 stx_ctimensec = STATX_OFFSET_ctime
2482 stx_mtimensec = STATX_OFFSET_mtime
2483 CODE:
2484#if HAVE_STATX
2485 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2486 RETVAL = ts->tv_nsec;
2487#else
2488 RETVAL = 0;
2489#endif
2490 OUTPUT:
2491 RETVAL
1076 2492
1077int 2493int
1078nreqs() 2494splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2495 CODE:
2496{
2497#if HAVE_LINUX_SPLICE
2498 loff_t off_in_, off_out_;
2499 RETVAL = splice (
2500 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2501 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2502 length, flags
2503 );
2504#else
2505 RETVAL = EIO_ENOSYS ();
2506#endif
2507}
2508 OUTPUT:
2509 RETVAL
2510
2511int
2512tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2513 CODE:
2514#if HAVE_LINUX_SPLICE
2515 RETVAL = tee (rfh, wfh, length, flags);
2516#else
2517 RETVAL = EIO_ENOSYS ();
2518#endif
2519 OUTPUT:
2520 RETVAL
2521
2522int
2523pipesize (aio_rfd rfh, int new_size = -1)
2524 PROTOTYPE: $;$
2525 CODE:
2526#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2527 if (new_size >= 0)
2528 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2529 else
2530 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2531#else
2532 errno = ENOSYS;
2533 RETVAL = -1;
2534#endif
2535 OUTPUT:
2536 RETVAL
2537
2538void
2539pipe2 (int flags = 0)
1079 PROTOTYPE: 2540 PROTOTYPE: ;$
2541 PPCODE:
2542{
2543 int fd[2];
2544 int res;
2545
2546 if (flags)
2547#if HAVE_PIPE2
2548 res = pipe2 (fd, flags);
2549#else
2550 res = (errno = ENOSYS, -1);
2551#endif
2552 else
2553 res = pipe (fd);
2554
2555 if (!res)
2556 {
2557 EXTEND (SP, 2);
2558 PUSHs (newmortalFH (fd[0], O_RDONLY));
2559 PUSHs (newmortalFH (fd[1], O_WRONLY));
2560 }
2561}
2562
2563void
2564eventfd (unsigned int initval = 0, int flags = 0)
2565 PPCODE:
2566{
2567 int fd;
2568#if HAVE_EVENTFD
2569 fd = eventfd (initval, flags);
2570#else
2571 fd = (errno = ENOSYS, -1);
2572#endif
2573
2574 XPUSHs (newmortalFH (fd, O_RDWR));
2575}
2576
2577void
2578timerfd_create (int clockid, int flags = 0)
2579 PPCODE:
2580{
2581 int fd;
2582#if HAVE_TIMERFD
2583 fd = timerfd_create (clockid, flags);
2584#else
2585 fd = (errno = ENOSYS, -1);
2586#endif
2587
2588 XPUSHs (newmortalFH (fd, O_RDWR));
2589}
2590
2591void
2592timerfd_settime (SV *fh, int flags, NV interval, NV value)
2593 PPCODE:
2594{
2595 int fd = s_fileno_croak (fh, 0);
2596#if HAVE_TIMERFD
2597 int res;
2598 struct itimerspec its, ots;
2599
2600 ts_set (&its.it_interval, interval);
2601 ts_set (&its.it_value , value);
2602 res = timerfd_settime (fd, flags, &its, &ots);
2603
2604 if (!res)
2605 {
2606 EXTEND (SP, 2);
2607 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2608 PUSHs (newSVnv (ts_get (&ots.it_value)));
2609 }
2610#else
2611 errno = ENOSYS;
2612#endif
2613}
2614
2615void
2616timerfd_gettime (SV *fh)
2617 PPCODE:
2618{
2619 int fd = s_fileno_croak (fh, 0);
2620#if HAVE_TIMERFD
2621 int res;
2622 struct itimerspec ots;
2623 res = timerfd_gettime (fd, &ots);
2624
2625 if (!res)
2626 {
2627 EXTEND (SP, 2);
2628 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2629 PUSHs (newSVnv (ts_get (&ots.it_value)));
2630 }
2631#else
2632 errno = ENOSYS;
2633#endif
2634}
2635
2636void
2637memfd_create (SV8 *pathname, int flags = 0)
2638 PPCODE:
2639{
2640 int fd;
2641#if HAVE_MEMFD_CREATE
2642 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2643#else
2644 fd = (errno = ENOSYS, -1);
2645#endif
2646
2647 XPUSHs (newmortalFH (fd, O_RDWR));
2648}
2649
2650UV
2651get_fdlimit ()
1080 CODE: 2652 CODE:
1081 RETVAL = nreqs; 2653#if HAVE_RLIMITS
2654 struct rlimit rl;
2655 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2656 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2657#endif
2658 XSRETURN_UNDEF;
1082 OUTPUT: 2659 OUTPUT:
1083 RETVAL 2660 RETVAL
1084 2661
2662void
2663min_fdlimit (UV limit = 0x7fffffffU)
2664 CODE:
2665{
2666#if HAVE_RLIMITS
2667 struct rlimit rl;
2668 rlim_t orig_rlim_max;
2669 UV bit;
2670
2671 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2672 goto fail;
2673
2674 if (rl.rlim_cur == RLIM_INFINITY)
2675 XSRETURN_YES;
2676
2677 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2678
2679 if (rl.rlim_cur < limit)
2680 {
2681 rl.rlim_cur = limit;
2682
2683 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2684 rl.rlim_max = rl.rlim_cur;
2685 }
2686
2687 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2688 XSRETURN_YES;
2689
2690 if (errno == EPERM)
2691 {
2692 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2693 /* our limit overflows a system-wide limit */
2694 /* try an adaptive algorithm, but do not lower the hardlimit */
2695 rl.rlim_max = 0;
2696 for (bit = 0x40000000U; bit; bit >>= 1)
2697 {
2698 rl.rlim_max |= bit;
2699 rl.rlim_cur = rl.rlim_max;
2700
2701 /* nevr decrease the hard limit */
2702 if (rl.rlim_max < orig_rlim_max)
2703 break;
2704
2705 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2706 rl.rlim_max &= ~bit; /* too high, remove bit again */
2707 }
2708
2709 /* now, raise the soft limit to the max permitted */
2710 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2711 {
2712 rl.rlim_cur = rl.rlim_max;
2713 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2714 errno = EPERM;
2715 }
2716 }
2717#endif
2718 fail:
2719 XSRETURN_UNDEF;
2720}
2721
2722void _on_next_submit (SV *cb)
2723 CODE:
2724 SvREFCNT_dec (on_next_submit);
2725 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2726
2727PROTOTYPES: DISABLE
2728
2729MODULE = IO::AIO PACKAGE = IO::AIO::WD
2730
2731BOOT:
2732{
2733 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2734 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2735}
2736
2737void
2738DESTROY (SV *self)
2739 CODE:
2740{
2741 aio_wd wd = SvAIO_WD (self);
2742#if HAVE_AT
2743 {
2744 SV *callback = &PL_sv_undef;
2745 dREQ; /* clobbers next_pri :/ */
2746 next_pri = req->pri; /* restore next_pri */
2747 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2748 req->type = EIO_WD_CLOSE;
2749 req->wd = wd;
2750 REQ_SEND;
2751 }
2752#else
2753 eio_wd_close_sync (wd);
2754#endif
2755}
2756
2757MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2758
2759void
2760cancel (aio_req_ornot req)
2761 CODE:
2762 eio_cancel (req);
2763
2764void
2765cb (aio_req_ornot req, SV *callback = NO_INIT)
2766 PPCODE:
2767{
2768 if (GIMME_V != G_VOID)
2769 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2770
2771 if (items > 1)
2772 {
2773 SV *cb_cv = get_cb (callback);
2774
2775 SvREFCNT_dec (req->callback);
2776 req->callback = SvREFCNT_inc (cb_cv);
2777 }
2778}
2779
2780MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2781
2782void
2783add (aio_req grp, ...)
2784 PPCODE:
2785{
2786 int i;
2787
2788 if (grp->int1 == 2)
2789 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2790
2791 for (i = 1; i < items; ++i )
2792 {
2793 aio_req req;
2794
2795 if (GIMME_V != G_VOID)
2796 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2797
2798 req = SvAIO_REQ (ST (i));
2799
2800 if (req)
2801 eio_grp_add (grp, req);
2802 }
2803}
2804
2805void
2806cancel_subs (aio_req_ornot req)
2807 CODE:
2808 req_cancel_subs (req);
2809
2810void
2811result (aio_req grp, ...)
2812 CODE:
2813{
2814 int i;
2815 AV *av;
2816
2817 grp->errorno = errno;
2818
2819 av = newAV ();
2820 av_extend (av, items - 1);
2821
2822 for (i = 1; i < items; ++i )
2823 av_push (av, newSVsv (ST (i)));
2824
2825 SvREFCNT_dec (grp->sv1);
2826 grp->sv1 = (SV *)av;
2827}
2828
2829void
2830errno (aio_req grp, int errorno = errno)
2831 CODE:
2832 grp->errorno = errorno;
2833
2834void
2835limit (aio_req grp, int limit)
2836 CODE:
2837 eio_grp_limit (grp, limit);
2838
2839void
2840feed (aio_req grp, SV *callback = &PL_sv_undef)
2841 CODE:
2842{
2843 SvREFCNT_dec (grp->sv2);
2844 grp->sv2 = newSVsv (callback);
2845 grp->feed = aio_grp_feed;
2846
2847 if (grp->int2 <= 0)
2848 grp->int2 = 2;
2849
2850 eio_grp_limit (grp, grp->int2);
2851}
2852

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