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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.298 by root, Sun Sep 25 16:35:51 2022 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
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"
9
10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
8 13
9#include <stddef.h> 14#include <stddef.h>
10#include <stdlib.h> 15#include <stdlib.h>
11#include <errno.h> 16#include <errno.h>
12#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
13#include <sys/stat.h> 19#include <sys/stat.h>
14#include <limits.h> 20#include <limits.h>
15#include <fcntl.h> 21#include <fcntl.h>
16#include <sched.h> 22#include <sched.h>
17 23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
18#ifdef _WIN32 33#ifdef _WIN32
19 34
20# define SIGIO 0 35 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 36
22#undef malloc 37 #undef malloc
23#undef free 38 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 39 #undef open
27# undef read 40 #undef read
28# undef write 41 #undef write
42 #undef send
43 #undef recv
29# undef stat 44 #undef stat
45 #undef lstat
30# undef fstat 46 #undef fstat
31# define lstat stat
32# undef truncate 47 #undef truncate
33# undef ftruncate 48 #undef ftruncate
34# undef open 49 #undef open
50 #undef link
35# undef close 51 #undef close
36# undef unlink 52 #undef unlink
53 #undef mkdir
37# undef rmdir 54 #undef rmdir
38# undef rename 55 #undef rename
39# undef lseek 56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66 #undef utime
40 67
41# define chown(a,b,c) (errno = ENOSYS, -1) 68 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 69 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 70
55#else 71#else
56 72
57# include "autoconf/config.h"
58# include <sys/time.h> 73 #include <sys/time.h>
59# include <sys/select.h> 74 #include <sys/select.h>
75 #include <sys/wait.h>
60# include <unistd.h> 76 #include <unistd.h>
61# include <utime.h> 77 #include <utime.h>
62# include <signal.h> 78 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 79
65#endif 80 #define EIO_STRUCT_STAT Stat_t
66 81
67#if HAVE_SENDFILE 82#endif
68# if __linux 83
69# include <sys/sendfile.h> 84/*****************************************************************************/
70# elif __freebsd 85
86#if __GNUC__ >= 3
87# define expect(expr,value) __builtin_expect ((expr),(value))
88#else
89# define expect(expr,value) (expr)
90#endif
91
92#define expect_false(expr) expect ((expr) != 0, 0)
93#define expect_true(expr) expect ((expr) != 0, 1)
94
95/*****************************************************************************/
96
97#include "config.h"
98
99#if HAVE_SYS_MKDEV_H
71# include <sys/socket.h> 100# include <sys/mkdev.h>
101#elif HAVE_SYS_SYSMACROS_H
102# include <sys/sysmacros.h>
103#endif
104
105#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
106# include <sys/mman.h>
107#endif
108
109#if HAVE_SYS_UIO_H
72# include <sys/uio.h> 110# include <sys/uio.h>
73# elif __hpux 111#endif
112
113/* MUST be included before linux/fs.h, as the latter includes
114 * linux/mount.h, which is incompatible to sys/mount.h
115 */
116#if HAVE_SYS_MOUNT_H
74# include <sys/socket.h> 117# include <sys/mount.h>
75# elif __solaris /* not yet */ 118#endif
119
120/* the incompetent fool that created musl keeps __linux__, refuses
121 * to implement any linux standard apis, and also has no way to test
122 * for his broken implementation. don't complain to me if this fails
123 * for you.
124 */
125#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
126# include <linux/fs.h> /* MUST be included after sys/mount.h */
127# ifdef FS_IOC_FIEMAP
128# include <linux/types.h>
129# include <linux/fiemap.h>
130# undef HAVE_FIEMAP
131# define HAVE_FIEMAP 1
132# endif
133#endif
134
135#if HAVE_ST_XTIMENSEC
136# define ATIMENSEC PL_statcache.st_atimensec
137# define MTIMENSEC PL_statcache.st_mtimensec
138# define CTIMENSEC PL_statcache.st_ctimensec
139#elif HAVE_ST_XTIMESPEC
140# define ATIMENSEC PL_statcache.st_atim.tv_nsec
141# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
142# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
143#else
144# define ATIMENSEC 0
145# define MTIMENSEC 0
146# define CTIMENSEC 0
147#endif
148
149#if HAVE_ST_BIRTHTIMENSEC
150# define BTIMESEC PL_statcache.st_birthtime
151# define BTIMENSEC PL_statcache.st_birthtimensec
152#elif HAVE_ST_BIRTHTIMESPEC
153# define BTIMESEC PL_statcache.st_birthtim.tv_sec
154# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
155#else
156# define BTIMESEC 0
157# define BTIMENSEC 0
158#endif
159
160#if HAVE_ST_GEN
161# define ST_GEN PL_statcache.st_gen
162#else
163# define ST_GEN 0
164#endif
165
166#include "schmorp.h"
167
168#if HAVE_EVENTFD
76# include <sys/sendfile.h> 169# include <sys/eventfd.h>
170#endif
171
172#if HAVE_TIMERFD
173# include <sys/timerfd.h>
174#endif
175
176#if HAVE_RLIMITS
177 #include <sys/time.h>
178 #include <sys/resource.h>
179#endif
180
181typedef SV SV8; /* byte-sv, used for argument-checking */
182typedef char *octet_string;
183typedef char *octet_string_ornull;
184typedef int aio_rfd; /* read file desriptor */
185typedef int aio_wfd; /* write file descriptor */
186
187static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
188
189#define EIO_REQ_MEMBERS \
190 SV *callback; \
191 SV *sv1, *sv2; \
192 SV *sv3, *sv4; \
193 STRLEN stroffset; \
194 SV *self;
195
196#define EIO_NO_WRAPPERS 1
197
198#include "libeio/eio.h"
199
200static int req_invoke (eio_req *req);
201#define EIO_FINISH(req) req_invoke (req)
202static void req_destroy (eio_req *grp);
203#define EIO_DESTROY(req) req_destroy (req)
204
205#include "libeio/eio.c"
206
207#if !HAVE_POSIX_FADVISE
208# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef MAP_ANONYMOUS
216# ifdef MAP_ANON
217# define MAP_ANONYMOUS MAP_ANON
77# else 218# else
78# error sendfile support requested but not available 219# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 220# endif
80#endif 221#endif
81 222
82/* number of seconds after which idle threads exit */ 223#ifndef makedev
83#define IDLE_TIMEOUT 10 224# define makedev(maj,min) (((maj) << 8) | (min))
84
85/* used for struct dirent, AIX doesn't provide it */
86#ifndef NAME_MAX
87# define NAME_MAX 4096
88#endif 225#endif
89 226#ifndef major
90/* buffer size for various temporary buffers */ 227# define major(dev) ((dev) >> 8)
91#define AIO_BUFSIZE 65536
92
93/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8
95# define SvVAL64 SvIV
96#else
97# define SvVAL64 SvNV
98#endif 228#endif
229#ifndef minor
230# define minor(dev) ((dev) & 0xff)
231#endif
99 232
100#define dBUF \ 233/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
101 char *aio_buf; \ 234#ifdef __sun
102 X_LOCK (wrklock); \ 235# undef PAGESIZE
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 236#endif
104 X_UNLOCK (wrklock); \ 237
105 if (!aio_buf) \ 238#if PAGESIZE <= 0
239# define PAGESIZE sysconf (_SC_PAGESIZE)
240#endif
241
242/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
243#ifdef __sun
244# undef HAVE_SYSCALL
245#endif
246
247#if HAVE_SYSCALL
248#include <sys/syscall.h>
249#else
250# define syscall(nr,...) (errno = ENOSYS, -1)
251#endif
252
253/*****************************************************************************/
254
255#if !_POSIX_MAPPED_FILES
256# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
257# define munmap(addr,length) EIO_ENOSYS ()
258#endif
259
260#if !_POSIX_MEMORY_PROTECTION
261# define mprotect(addr,len,prot) EIO_ENOSYS ()
262#endif
263
264#if !MREMAP_MAYMOVE
265# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
266#endif
267
268#define FOREIGN_MAGIC PERL_MAGIC_ext
269
270static int ecb_cold
271mmap_free (pTHX_ SV *sv, MAGIC *mg)
272{
273 int old_errno = errno;
274 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
275 errno = old_errno;
276
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
106 return -1; 288 return 0;
289}
107 290
108typedef SV SV8; /* byte-sv, used for argument-checking */ 291static MGVTBL mmap_vtbl = {
109 292 0, 0, 0, 0, mmap_free
110enum {
111 REQ_QUIT,
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 293};
127 294
128#define AIO_REQ_KLASS "IO::AIO::REQ" 295static int ecb_cold
129#define AIO_GRP_KLASS "IO::AIO::GRP" 296sysfree_free (pTHX_ SV *sv, MAGIC *mg)
130
131typedef struct aio_cb
132{ 297{
133 struct aio_cb *volatile next; 298 free (mg->mg_ptr);
299 mg->mg_obj = 0; /* just in case */
134 300
135 SV *callback; 301 SvREADONLY_off (sv);
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142 302
143 STRLEN stroffset; 303 if (SvPVX (sv) != mg->mg_ptr)
144 int type; 304 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 305
149 unsigned char flags; 306 SvCUR_set (sv, 0);
150 unsigned char pri; 307 SvPVX (sv) = 0;
308 SvOK_off (sv);
151 309
152 SV *self; /* the perl counterpart of this request, if any */ 310 return 0;
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 311}
154} aio_cb;
155 312
156enum { 313static MGVTBL sysfree_vtbl = {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */ 314 0, 0, 0, 0, sysfree_free
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160}; 315};
161 316
162typedef aio_cb *aio_req; 317/*****************************************************************************/
163typedef aio_cb *aio_req_ornot;
164 318
165enum { 319/* helper: set scalar to foreign ptr with custom free */
166 PRI_MIN = -4, 320ecb_noinline
167 PRI_MAX = 4, 321static void
168 322sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
169 DEFAULT_PRI = 0,
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{ 323{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 324 sv_force_normal (sv);
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185 325
186static thread_t main_tid; 326 /* we store the length in mg_obj, as namlen is I32 :/ */
187static int main_sig; 327 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
188static int block_sig_level; 328 ->mg_obj = (SV *)length;
189 329
190void block_sig () 330 SvUPGRADE (sv, SVt_PV); /* nop... */
191{
192 sigset_t ss;
193 331
194 if (block_sig_level++) 332 if (SvLEN (sv))
333 Safefree (SvPVX (sv));
334
335 SvPVX (sv) = (char *)addr;
336 SvCUR_set (sv, length);
337 SvLEN_set (sv, 0);
338 SvPOK_only (sv);
339}
340
341static void
342sv_clear_foreign (SV *sv)
343{
344 /* todo: iterate over magic and only free ours, but of course */
345 /* the perl5porters will call that (correct) behaviour buggy */
346 sv_unmagic (sv, FOREIGN_MAGIC);
347}
348
349/*****************************************************************************/
350
351/* defines all sorts of constants to 0 unless they are already defined */
352/* also provides const_iv_ and const_niv_ macros for them */
353#include "def0.h"
354
355/*****************************************************************************/
356
357static void
358fiemap (eio_req *req)
359{
360 req->result = -1;
361
362#if HAVE_FIEMAP
363 /* assume some c99 */
364 struct fiemap *fiemap = 0;
365 size_t end_offset;
366 int count = req->int3;
367
368 req->flags |= EIO_FLAG_PTR1_FREE;
369
370 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
371 /* increase in fixed steps */
372 if (count < 0)
373 count = 8;
374
375 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
376 errno = ENOMEM;
377 if (!fiemap)
195 return; 378 return;
196 379
197 if (!main_sig) 380 req->ptr1 = fiemap;
381
382 fiemap->fm_start = req->offs;
383 fiemap->fm_length = req->size;
384 fiemap->fm_flags = req->int2;
385 fiemap->fm_extent_count = count;
386
387 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
198 return; 388 return;
199 389
200 sigemptyset (&ss); 390 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 391 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 392 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 393 goto done;
204 394
205void unblock_sig () 395 /* else we have to loop -
206{ 396 * it would be tempting (actually I tried that first) to just query the
207 sigset_t ss; 397 * number of extents needed, but linux often feels like not returning all
398 * extents, without telling us it left any out. this complicates
399 * this quite a bit.
400 */
208 401
209 if (--block_sig_level) 402 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 403
212 if (!main_sig) 404 for (;;)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 { 405 {
245 closedir (wrk->dirp); 406 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
246 wrk->dirp = 0; 407 char scratch[3072];
247 } 408 struct fiemap *incmap = (struct fiemap *)scratch;
248 409
249 if (wrk->dbuf) 410 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 411 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 412 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 413 incmap->fm_flags = fiemap->fm_flags;
253 } 414 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 415
256static void worker_free (worker *wrk) 416 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0; 417 return;
351 418
352 --q->size; 419 if (!incmap->fm_mapped_extents)
420 goto done;
353 421
354 for (pri = NUM_PRI; pri--; ) 422 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 { 423 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 aio_req req = q->qs[pri]; 424 errno = ENOMEM;
357
358 if (req) 425 if (!fiemap)
426 return;
427
428 req->ptr1 = fiemap;
429
430 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 431 {
360 if (!(q->qs[pri] = req->next)) 432 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 433
363 return req; 434 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
435
436 if (e->fe_logical >= end_offset)
437 goto done;
438
439 if (e->fe_flags & FIEMAP_EXTENT_LAST)
440 goto done;
441
364 } 442 }
365 } 443 }
366 444
367 abort (); 445done:
368} 446 req->result = 0;
369 447
370static int poll_cb (); 448#else
371static int req_invoke (aio_req req); 449 errno = ENOSYS;
450#endif
451}
452
453/*****************************************************************************/
454
455static int close_fd; /* dummy fd to close fds via dup2 */
456
457#if HAVE_STATX
458static struct statx stx;
459#define statx_offsetof(member) offsetof (struct statx, member)
460#define eio__statx statx
461#else
462#define statx_offsetof(member) 0
463#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
464#endif
465
466enum {
467 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
468};
469
470typedef eio_req *aio_req;
471typedef eio_req *aio_req_ornot;
472typedef eio_wd aio_wd;
473
474static SV *on_next_submit;
475static int next_pri = EIO_PRI_DEFAULT;
476static int max_outstanding;
477
478static s_epipe respipe;
479
372static void req_destroy (aio_req req); 480static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 481static void req_cancel (aio_req req);
374 482
483static void
484want_poll (void)
485{
486 /* write a dummy byte to the pipe so fh becomes ready */
487 s_epipe_signal (&respipe);
488}
489
490static void
491done_poll (void)
492{
493 /* read any signals sent by the worker threads */
494 s_epipe_drain (&respipe);
495}
496
375/* must be called at most once */ 497/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 498ecb_noinline
499static SV *
500req_sv (aio_req req, HV *stash)
377{ 501{
378 if (!req->self) 502 if (!req->self)
379 { 503 {
380 req->self = (SV *)newHV (); 504 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 505 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 506 }
383 507
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 508 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 509}
386 510
387static aio_req SvAIO_REQ (SV *sv) 511static SV *
512newSVaio_wd (aio_wd wd)
513{
514 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
515}
516
517ecb_noinline
518static aio_req
519SvAIO_REQ (SV *sv)
388{ 520{
389 MAGIC *mg; 521 MAGIC *mg;
390 522
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 523 if (!SvROK (sv)
524 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
525 || (SvSTASH (SvRV (sv)) != aio_grp_stash
526 && SvSTASH (SvRV (sv)) != aio_req_stash
527 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 528 croak ("object of class IO::AIO::REQ expected");
393 529
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 530 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 531
396 return mg ? (aio_req)mg->mg_ptr : 0; 532 return mg ? (aio_req)mg->mg_ptr : 0;
397} 533}
398 534
535static aio_wd
536SvAIO_WD (SV *sv)
537{
538 if (!SvROK (sv)
539 || SvTYPE (SvRV (sv)) != SVt_PVMG
540 || SvSTASH (SvRV (sv)) != aio_wd_stash)
541 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
542
543 return (aio_wd)(long)SvIVX (SvRV (sv));
544}
545
546static SV *
547newmortalFH (int fd, int flags)
548{
549 if (fd < 0)
550 return &PL_sv_undef;
551
552 GV *gv = (GV *)sv_newmortal ();
553 char sym[64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
557 gv_init (gv, aio_stash, sym, symlen, 0);
558
559 symlen = snprintf (
560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 fd
565 );
566
567 return do_open (gv, sym, symlen, 0, 0, 0, 0)
568 ? (SV *)gv : &PL_sv_undef;
569}
570
571static void
399static void aio_grp_feed (aio_req grp) 572aio_grp_feed (aio_req grp)
400{ 573{
401 block_sig (); 574 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 575 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 576 dSP;
410 577
411 ENTER; 578 ENTER;
412 SAVETMPS; 579 SAVETMPS;
413 PUSHMARK (SP); 580 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 581 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 582 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 583 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 584 SPAGAIN;
418 FREETMPS; 585 FREETMPS;
419 LEAVE; 586 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 587 }
430
431 unblock_sig ();
432} 588}
433 589
434static void aio_grp_dec (aio_req grp) 590ecb_noinline
591static void
592req_submit (eio_req *req)
435{ 593{
436 --grp->size; 594 eio_submit (req);
437 595
438 /* call feeder, if applicable */ 596 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 597 {
444 block_sig (); 598 dSP;
599 SV *cb = sv_2mortal (on_next_submit);
445 600
446 if (!req_invoke (grp)) 601 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 602
453 req_destroy (grp); 603 PUSHMARK (SP);
454 unblock_sig (); 604 PUTBACK;
605 call_sv (cb, G_DISCARD | G_EVAL);
455 } 606 }
456} 607}
457 608
609static int
458static int req_invoke (aio_req req) 610req_invoke (eio_req *req)
459{ 611{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 612 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 613 SvREADONLY_off (req->sv2);
464 614
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 615 if (!EIO_CANCELLED (req) && req->callback)
466 { 616 {
617 dSP;
618 static SV *sv_result_cache; /* caches the result integer SV */
619 SV *sv_result;
620
467 ENTER; 621 ENTER;
468 SAVETMPS; 622 SAVETMPS;
469 PUSHMARK (SP); 623 PUSHMARK (SP);
470 EXTEND (SP, 1); 624 EXTEND (SP, 1);
471 625
626 /* do not recreate the result IV from scratch each time */
627 if (expect_true (sv_result_cache))
628 {
629 sv_result = sv_result_cache; sv_result_cache = 0;
630 SvIV_set (sv_result, req->result);
631 SvIOK_only (sv_result);
632 }
633 else
634 {
635 sv_result = newSViv (req->result);
636 SvREADONLY_on (sv_result);
637 }
638
472 switch (req->type) 639 switch (req->type)
473 { 640 {
641 case EIO_WD_OPEN:
642 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
643 break;
644
474 case REQ_READDIR: 645 case EIO_READDIR:
475 { 646 {
476 SV *rv = &PL_sv_undef; 647 SV *rv = &PL_sv_undef;
477 648
478 if (req->result >= 0) 649 if (req->result >= 0)
479 { 650 {
480 int i; 651 int i;
481 char *buf = req->ptr2; 652 char *names = (char *)req->ptr2;
653 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 654 AV *av = newAV ();
483 655
484 av_extend (av, req->result - 1); 656 av_extend (av, req->result - 1);
485 657
486 for (i = 0; i < req->result; ++i) 658 for (i = 0; i < req->result; ++i)
487 { 659 {
488 SV *sv = newSVpv (buf, 0); 660 if (req->int1 & EIO_READDIR_DENTS)
661 {
662 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 663
664 if (req->int1 & EIO_READDIR_CUSTOM2)
665 {
666 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
667 AV *avent = newAV ();
668
669 av_extend (avent, 2);
670
671 if (!sv_type [ent->type])
672 {
673 sv_type [ent->type] = newSViv (ent->type);
674 SvREADONLY_on (sv_type [ent->type]);
675 }
676
677 av_store (avent, 0, namesv);
678 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
679 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
680
681 av_store (av, i, newRV_noinc ((SV *)avent));
682 }
683 else
490 av_store (av, i, sv); 684 av_store (av, i, namesv);
685
686 ++ent;
687 }
688 else
689 {
690 SV *name = newSVpv (names, 0);
691 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 692 names += SvCUR (name) + 1;
693 }
492 } 694 }
493 695
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 696 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 697 }
496 698
497 PUSHs (rv); 699 PUSHs (rv);
700
701 if (req->int1 & EIO_READDIR_CUSTOM1)
702 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 703 }
499 break; 704 break;
500 705
501 case REQ_OPEN: 706 case EIO_OPEN:
707 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
708 break;
709
710 case EIO_STATVFS:
711 case EIO_FSTATVFS:
502 { 712 {
503 /* convert fd to fh */ 713 SV *rv = &PL_sv_undef;
504 SV *fh; 714
715#ifndef _WIN32
716 if (req->result >= 0)
717 {
718 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
719 HV *hv = newHV ();
720 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
721 * chooses to make it a struct.
722 */
723 unsigned long fsid = 0;
724 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
505 725
506 PUSHs (sv_2mortal (newSViv (req->result))); 726 rv = sv_2mortal (newRV_noinc ((SV *)hv));
507 PUTBACK;
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
509 SPAGAIN;
510 727
511 fh = POPs; 728 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
512 PUSHMARK (SP); 729 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
730 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
731 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
732 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
733 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
734 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
735 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
736 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
737 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
738 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
739 }
740#endif
741
513 XPUSHs (fh); 742 PUSHs (rv);
514 } 743 }
744
515 break; 745 break;
516 746
517 case REQ_GROUP: 747 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 748 req->int1 = 2; /* mark group as finished */
519 749
520 if (req->sv1) 750 if (req->sv1)
521 { 751 {
522 int i; 752 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 756 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 757 PUSHs (*av_fetch (av, i, 0));
528 } 758 }
529 break; 759 break;
530 760
531 case REQ_NOP: 761 case EIO_NOP:
532 case REQ_BUSY: 762 case EIO_BUSY:
533 break; 763 break;
534 764
535 case REQ_READLINK: 765 case EIO_READLINK:
766 case EIO_REALPATH:
536 if (req->result > 0) 767 if (req->result > 0)
768 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
769 break;
770
771 case EIO_STAT:
772 case EIO_LSTAT:
773 case EIO_FSTAT:
774 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
775
776 if (!(PL_laststatval = req->result))
777 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
778 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
779
780 PUSHs (sv_result);
781 break;
782
783 case EIO_SEEK:
784 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
785 break;
786
787 case EIO_READ:
788 {
789 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
790 *SvEND (req->sv2) = 0;
791 SvPOK_only (req->sv2);
792 SvSETMAGIC (req->sv2);
793 PUSHs (sv_result);
794 }
795 break;
796
797 case EIO_SLURP:
798 {
799 if (req->result >= 0)
800 {
801 /* if length was originally not known, we steal the malloc'ed memory */
802 if (req->flags & EIO_FLAG_PTR2_FREE)
803 {
804 req->flags &= ~EIO_FLAG_PTR2_FREE;
805 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
806 }
807 else
808 {
809 SvCUR_set (req->sv2, req->result);
810 *SvEND (req->sv2) = 0;
811 SvPOK_only (req->sv2);
812 }
813
814 SvSETMAGIC (req->sv2);
815 }
816
817 PUSHs (sv_result);
818 }
819 break;
820
821 case EIO_CUSTOM:
822 if (req->feed == fiemap)
537 { 823 {
538 SvCUR_set (req->sv2, req->result); 824#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 825 if (!req->result)
826 {
827 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
828
829 if (fiemap->fm_extent_count)
830 {
831 AV *av = newAV ();
832 int i;
833
834 while (fiemap->fm_mapped_extents)
835 {
836 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
837 AV *ext_av = newAV ();
838
839 av_store (ext_av, 3, newSVuv (extent->fe_flags));
840 av_store (ext_av, 2, newSVval64 (extent->fe_length));
841 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
842 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
843
844 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
845 }
846
847 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
848 }
849 else
850 {
851 SvIV_set (sv_result, fiemap->fm_mapped_extents);
852 PUSHs (sv_result);
853 }
854 }
855#endif
541 } 856 }
857 else
858 PUSHs (sv_result);
542 break; 859 break;
543 860
544 case REQ_STAT: 861#if 0
545 case REQ_LSTAT: 862 case EIO_CLOSE:
546 case REQ_FSTAT: 863 PerlIOUnix_refcnt_dec (req->int1);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break; 864 break;
865#endif
552 866
553 case REQ_READ: 867 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 868 if (req->result > 0)
555 *SvEND (req->sv2) = 0; 869 SvIV_set (sv_result, 0);
556 PUSHs (sv_2mortal (newSViv (req->result))); 870 /* FALLTHROUGH */
557 break;
558 871
559 default: 872 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 873 PUSHs (sv_result);
561 break; 874 break;
562 } 875 }
563 876
564 errno = req->errorno; 877 errno = req->errorno;
565 878
566 PUTBACK; 879 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 880 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 881 SPAGAIN;
882
883 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
884 SvREFCNT_dec (sv_result);
885 else
886 sv_result_cache = sv_result;
569 887
570 FREETMPS; 888 FREETMPS;
571 LEAVE; 889 LEAVE;
890
891 PUTBACK;
572 } 892 }
573 893
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 894 return !!SvTRUE (ERRSV);
589} 895}
590 896
897static void
591static void req_destroy (aio_req req) 898req_destroy (aio_req req)
592{ 899{
593 if (req->self) 900 if (req->self)
594 { 901 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 902 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 903 SvREFCNT_dec (req->self);
597 } 904 }
598 905
599 SvREFCNT_dec (req->sv1); 906 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 907 SvREFCNT_dec (req->sv2);
908 SvREFCNT_dec (req->sv3);
909 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 910 SvREFCNT_dec (req->callback);
602 911
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 912 free (req);
607} 913}
608 914
915static void
609static void req_cancel_subs (aio_req grp) 916req_cancel_subs (aio_req grp)
610{ 917{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 918 if (grp->type != EIO_GROUP)
614 return; 919 return;
615 920
616 SvREFCNT_dec (grp->sv2); 921 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 922 grp->sv2 = 0;
618 923
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 924 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 925}
622 926
623static void req_cancel (aio_req req) 927ecb_cold
928static void
929create_respipe (void)
624{ 930{
625 req->flags |= FLAG_CANCELLED; 931 if (s_epipe_renew (&respipe))
626 932 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 933}
629 934
630X_THREAD_PROC (aio_proc); 935static void
631 936poll_wait (void)
632static void start_thread (void)
633{ 937{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 938 while (eio_nreqs ())
730 { 939 {
731 int size; 940 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 941
942 X_LOCK (EIO_POOL->reslock);
733 size = res_queue.size; 943 size = EIO_POOL->res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 944 X_UNLOCK (EIO_POOL->reslock);
735 945
736 if (size) 946 if (size)
737 return; 947 return;
738 948
739 maybe_start_thread (); 949 etp_maybe_start_thread (EIO_POOL);
740 950
741 FD_ZERO(&rfd); 951 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 952 }
746} 953}
747 954
748static int poll_cb () 955static int
956poll_cb (void)
749{ 957{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 958 for (;;)
763 { 959 {
764 for (;;) 960 int res = eio_poll ();
961
962 if (res > 0)
963 croak (0);
964
965 if (!max_outstanding || max_outstanding > eio_nreqs ())
966 return res;
967
968 poll_wait ();
969 }
970}
971
972ecb_cold
973static void
974reinit (void)
975{
976 create_respipe ();
977
978 if (eio_init (want_poll, done_poll) < 0)
979 croak ("IO::AIO: unable to initialise eio library");
980}
981
982/*****************************************************************************/
983
984static SV *
985get_cb (SV *cb_sv)
986{
987 SvGETMAGIC (cb_sv);
988 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
989}
990
991ecb_noinline
992static aio_req ecb_noinline
993dreq (SV *callback)
994{
995 SV *cb_cv;
996 aio_req req;
997 int req_pri = next_pri;
998 next_pri = EIO_PRI_DEFAULT;
999
1000 cb_cv = get_cb (callback);
1001
1002 req = calloc (sizeof (*req), 1);
1003 if (!req)
1004 croak ("out of memory during eio_req allocation");
1005
1006 req->callback = SvREFCNT_inc (cb_cv);
1007 req->pri = req_pri;
1008
1009 return req;
1010}
1011
1012#define dREQ \
1013 aio_req req = dreq (callback); \
1014
1015#define REQ_SEND \
1016 PUTBACK; \
1017 req_submit (req); \
1018 SPAGAIN; \
1019 \
1020 if (GIMME_V != G_VOID) \
1021 XPUSHs (req_sv (req, aio_req_stash));
1022
1023/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1024ecb_inline
1025void
1026req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1027{
1028 if (expect_false (SvROK (path)))
1029 {
1030 SV *rv = SvRV (path);
1031 SV *wdob;
1032
1033 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 1034 {
766 maybe_start_thread (); 1035 path = AvARRAY (rv)[1];
1036 wdob = AvARRAY (rv)[0];
767 1037
768 X_LOCK (reslock); 1038 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 1039 {
773 --npending; 1040 *wd = SvAIO_WD (wdob);
774 1041 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 1042 }
796 else 1043 else
797 { 1044 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 1045 }
1046 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1047 {
1048 *wd = (aio_wd)(long)SvIVX (rv);
1049 *wdsv = SvREFCNT_inc_NN (rv);
1050 *ptr = ".";
1051 return; /* path set to "." */
1052 }
1053 else
1054 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1055 }
821 1056
822 if (nreqs <= max_outstanding) 1057 *pathsv = newSVsv (path);
1058 *ptr = SvPVbyte_nolen (*pathsv);
1059}
1060
1061ecb_noinline
1062static void
1063req_set_path1 (aio_req req, SV *path)
1064{
1065 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1066}
1067
1068ecb_noinline
1069static void
1070req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1071{
1072 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1073
1074 switch (SvTYPE (rv))
1075 {
1076 case SVt_PVIO:
1077 case SVt_PVLV:
1078 case SVt_PVGV:
1079 req->type = type_fh;
1080 req->sv1 = newSVsv (fh_or_path);
1081 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 1082 break;
824 1083
825 poll_wait (); 1084 default:
826 1085 req->type = type_path;
827 ++maxreqs; 1086 req_set_path1 (req, fh_or_path);
1087 break;
828 } 1088 }
829
830 unblock_sig ();
831 return count;
832} 1089}
833 1090
834/*****************************************************************************/ 1091/*****************************************************************************/
835/* work around various missing functions */
836 1092
837#if !HAVE_PREADWRITE 1093static void
838# define pread aio_pread 1094ts_set (struct timespec *ts, NV value)
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{ 1095{
850 ssize_t res; 1096 ts->tv_sec = value;
851 off_t ooffset; 1097 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861} 1098}
862 1099
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1100static NV
1101ts_get (const struct timespec *ts)
864{ 1102{
865 ssize_t res; 1103 return ts->tv_sec + ts->tv_nsec * 1e-9;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876} 1104}
877#endif
878 1105
879#ifndef HAVE_FUTIMES 1106/*****************************************************************************/
880 1107
881# define utimes(path,times) aio_utimes (path, times) 1108/* extract a ref-to-array of strings into a temporary c style string vector */
882# define futimes(fd,times) aio_futimes (fd, times) 1109static char **
883 1110extract_stringvec (SV *sv, const char *croakmsg)
884int aio_utimes (const char *filename, const struct timeval times[2])
885{ 1111{
886 if (times) 1112 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1113 croak ("%s", croakmsg);
1114
1115 AV *av = (AV *)SvRV (sv);
1116 int i, nelem = av_len (av) + 1;
1117 char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
1118
1119 for (i = 0; i < nelem; ++i)
887 { 1120 {
888 struct utimbuf buf; 1121 SV **e = av_fetch (av, i, 0);
889 1122
890 buf.actime = times[0].tv_sec; 1123 if (e && *e)
891 buf.modtime = times[1].tv_sec; 1124 vecp[i] = SvPVbyte_nolen (*e);
892 1125 else
893 return utime (filename, &buf); 1126 vecp[i] = "";
894 } 1127 }
895 else
896 return utime (filename, 0);
897}
898 1128
899int aio_futimes (int fd, const struct timeval tv[2]) 1129 vecp[nelem] = 0;
900{ 1130
901 errno = ENOSYS;
902 return -1; 1131 return vecp;
903} 1132}
904 1133
905#endif 1134/*****************************************************************************/
906 1135
907#if !HAVE_FDATASYNC 1136XS(boot_IO__AIO) ecb_cold;
908# define fdatasync fsync
909#endif
910 1137
911#if !HAVE_READAHEAD 1138MODULE = IO::AIO PACKAGE = IO::AIO
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913 1139
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1140PROTOTYPES: ENABLE
915{
916 size_t todo = count;
917 dBUF;
918 1141
919 while (todo > 0) 1142BOOT:
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{ 1143{
941 X_DIRENT *e; 1144 static const struct {
942 int errorno; 1145 const char *name;
1146 IV iv;
1147 } *civ, const_iv[] = {
1148# define const_niv(name, value) { # name, (IV) value },
1149# define const_iv(name) { # name, (IV) name },
1150# define const_eio(name) { # name, (IV) EIO_ ## name },
943 1151
944 X_LOCK (readdirlock); 1152 /* you have to re-run ./gendef0 after adding/removing any constants here */
1153 /* the first block can be undef if missing */
1154 const_iv (ENOSYS)
1155 const_iv (EXDEV)
1156 const_iv (EBADR)
945 1157
946 e = readdir (dirp); 1158 /* for lseek */
947 errorno = errno; 1159 const_iv (SEEK_DATA)
1160 const_iv (SEEK_HOLE)
948 1161
949 if (e) 1162 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
950 { 1163 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
951 *res = ent; 1164 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
952 strcpy (ent->d_name, e->d_name); 1165 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
953 } 1166 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
954 else 1167 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
955 *res = 0;
956 1168
957 X_UNLOCK (readdirlock); 1169 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1170 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1171 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1172 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1173 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
958 1174
959 errno = errorno; 1175 /* the second block will be 0 when missing */
960 return e ? 0 : -1; 1176 const_iv (O_ACCMODE)
961}
962#endif
963 1177
964/* sendfile always needs emulation */ 1178 const_iv (O_RDONLY)
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1179 const_iv (O_WRONLY)
966{ 1180 const_iv (O_RDWR)
967 ssize_t res; 1181 const_iv (O_CREAT)
1182 const_iv (O_TRUNC)
1183 const_iv (O_EXCL)
1184 const_iv (O_APPEND)
968 1185
969 if (!count) 1186 const_iv (O_ASYNC)
970 return 0; 1187 const_iv (O_DIRECT)
1188 const_iv (O_NOATIME)
971 1189
972#if HAVE_SENDFILE 1190 const_iv (O_CLOEXEC)
973# if __linux 1191 const_iv (O_NOCTTY)
974 res = sendfile (ofd, ifd, &offset, count); 1192 const_iv (O_NOFOLLOW)
1193 const_iv (O_NONBLOCK)
1194 const_iv (O_EXEC)
1195 const_iv (O_SEARCH)
1196 const_iv (O_DIRECTORY)
1197 const_iv (O_DSYNC)
1198 const_iv (O_RSYNC)
1199 const_iv (O_SYNC)
1200 const_iv (O_PATH)
1201 const_iv (O_TMPFILE)
1202 const_iv (O_TTY_INIT)
975 1203
976# elif __freebsd 1204 const_iv (S_IFIFO)
977 /* 1205 const_iv (S_IFCHR)
978 * Of course, the freebsd sendfile is a dire hack with no thoughts 1206 const_iv (S_IFBLK)
979 * wasted on making it similar to other I/O functions. 1207 const_iv (S_IFLNK)
980 */ 1208 const_iv (S_IFREG)
1209 const_iv (S_IFDIR)
1210 const_iv (S_IFWHT)
1211 const_iv (S_IFSOCK)
1212 const_iv (S_IFMT)
1213
1214 const_iv (ST_RDONLY)
1215 const_iv (ST_NOSUID)
1216 const_iv (ST_NODEV)
1217 const_iv (ST_NOEXEC)
1218 const_iv (ST_SYNCHRONOUS)
1219 const_iv (ST_MANDLOCK)
1220 const_iv (ST_WRITE)
1221 const_iv (ST_APPEND)
1222 const_iv (ST_IMMUTABLE)
1223 const_iv (ST_NOATIME)
1224 const_iv (ST_NODIRATIME)
1225 const_iv (ST_RELATIME)
1226
1227 const_iv (PROT_NONE)
1228 const_iv (PROT_EXEC)
1229 const_iv (PROT_READ)
1230 const_iv (PROT_WRITE)
1231
1232 const_iv (MAP_PRIVATE)
1233 const_iv (MAP_SHARED)
1234 const_iv (MAP_FIXED)
1235 const_iv (MAP_ANONYMOUS)
1236
1237 /* linuxish */
1238 const_iv (MAP_LOCKED)
1239 const_iv (MAP_NORESERVE)
1240 const_iv (MAP_POPULATE)
1241 const_iv (MAP_NONBLOCK)
1242 const_iv (MAP_GROWSDOWN)
1243 const_iv (MAP_32BIT)
1244 const_iv (MAP_HUGETLB)
1245 const_iv (MAP_STACK)
1246 const_iv (MAP_FIXED_NOREPLACE)
1247 const_iv (MAP_SHARED_VALIDATE)
1248 const_iv (MAP_SYNC)
1249 const_iv (MAP_UNINITIALIZED)
1250
1251 const_iv (MREMAP_MAYMOVE)
1252 const_iv (MREMAP_FIXED)
1253
1254 const_iv (MSG_CMSG_CLOEXEC)
1255 const_iv (SOCK_CLOEXEC)
1256
1257 const_iv (F_DUPFD_CLOEXEC)
1258
1259 const_iv (F_ADD_SEALS)
1260 const_iv (F_GET_SEALS)
1261 const_iv (F_SEAL_SEAL)
1262 const_iv (F_SEAL_SHRINK)
1263 const_iv (F_SEAL_GROW)
1264 const_iv (F_SEAL_WRITE)
1265
1266 const_iv (F_OFD_GETLK)
1267 const_iv (F_OFD_SETLK)
1268 const_iv (F_OFD_GETLKW)
1269
1270 const_iv (FIFREEZE)
1271 const_iv (FITHAW)
1272 const_iv (FITRIM)
1273 const_iv (FICLONE)
1274 const_iv (FICLONERANGE)
1275 const_iv (FIDEDUPERANGE)
1276
1277 const_iv (FS_IOC_GETFLAGS)
1278 const_iv (FS_IOC_SETFLAGS)
1279 const_iv (FS_IOC_GETVERSION)
1280 const_iv (FS_IOC_SETVERSION)
1281 const_iv (FS_IOC_FIEMAP)
1282 const_iv (FS_IOC_FSGETXATTR)
1283 const_iv (FS_IOC_FSSETXATTR)
1284 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1285 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1286 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1287
1288 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1289
1290 const_iv (FS_SECRM_FL)
1291 const_iv (FS_UNRM_FL)
1292 const_iv (FS_COMPR_FL)
1293 const_iv (FS_SYNC_FL)
1294 const_iv (FS_IMMUTABLE_FL)
1295 const_iv (FS_APPEND_FL)
1296 const_iv (FS_NODUMP_FL)
1297 const_iv (FS_NOATIME_FL)
1298 const_iv (FS_DIRTY_FL)
1299 const_iv (FS_COMPRBLK_FL)
1300 const_iv (FS_NOCOMP_FL)
1301 const_iv (FS_ENCRYPT_FL)
1302 const_iv (FS_BTREE_FL)
1303 const_iv (FS_INDEX_FL)
1304 const_iv (FS_JOURNAL_DATA_FL)
1305 const_iv (FS_NOTAIL_FL)
1306 const_iv (FS_DIRSYNC_FL)
1307 const_iv (FS_TOPDIR_FL)
1308 const_iv (FS_FL_USER_MODIFIABLE)
1309
1310 const_iv (FS_XFLAG_REALTIME)
1311 const_iv (FS_XFLAG_PREALLOC)
1312 const_iv (FS_XFLAG_IMMUTABLE)
1313 const_iv (FS_XFLAG_APPEND)
1314 const_iv (FS_XFLAG_SYNC)
1315 const_iv (FS_XFLAG_NOATIME)
1316 const_iv (FS_XFLAG_NODUMP)
1317 const_iv (FS_XFLAG_RTINHERIT)
1318 const_iv (FS_XFLAG_PROJINHERIT)
1319 const_iv (FS_XFLAG_NOSYMLINKS)
1320 const_iv (FS_XFLAG_EXTSIZE)
1321 const_iv (FS_XFLAG_EXTSZINHERIT)
1322 const_iv (FS_XFLAG_NODEFRAG)
1323 const_iv (FS_XFLAG_FILESTREAM)
1324 const_iv (FS_XFLAG_DAX)
1325 const_iv (FS_XFLAG_HASATTR)
1326
1327 const_iv (FIEMAP_FLAG_SYNC)
1328 const_iv (FIEMAP_FLAG_XATTR)
1329 const_iv (FIEMAP_FLAGS_COMPAT)
1330 const_iv (FIEMAP_EXTENT_LAST)
1331 const_iv (FIEMAP_EXTENT_UNKNOWN)
1332 const_iv (FIEMAP_EXTENT_DELALLOC)
1333 const_iv (FIEMAP_EXTENT_ENCODED)
1334 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1335 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1336 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1337 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1338 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1339 const_iv (FIEMAP_EXTENT_MERGED)
1340 const_iv (FIEMAP_EXTENT_SHARED)
1341
1342 const_iv (SPLICE_F_MOVE)
1343 const_iv (SPLICE_F_NONBLOCK)
1344 const_iv (SPLICE_F_MORE)
1345 const_iv (SPLICE_F_GIFT)
1346
1347 const_iv (EFD_CLOEXEC)
1348 const_iv (EFD_NONBLOCK)
1349 const_iv (EFD_SEMAPHORE)
1350
1351 const_iv (MFD_CLOEXEC)
1352 const_iv (MFD_ALLOW_SEALING)
1353 const_iv (MFD_HUGETLB)
1354 const_iv (MFD_HUGETLB_2MB)
1355 const_iv (MFD_HUGETLB_1GB)
1356
1357 const_iv (CLOCK_REALTIME)
1358 const_iv (CLOCK_MONOTONIC)
1359 const_iv (CLOCK_BOOTTIME)
1360 const_iv (CLOCK_REALTIME_ALARM)
1361 const_iv (CLOCK_BOOTTIME_ALARM)
1362
1363 const_iv (TFD_NONBLOCK)
1364 const_iv (TFD_CLOEXEC)
1365
1366 const_iv (TFD_TIMER_ABSTIME)
1367 const_iv (TFD_TIMER_CANCEL_ON_SET)
1368
1369 const_iv (STATX_TYPE)
1370 const_iv (STATX_MODE)
1371 const_iv (STATX_NLINK)
1372 const_iv (STATX_UID)
1373 const_iv (STATX_GID)
1374 const_iv (STATX_ATIME)
1375 const_iv (STATX_MTIME)
1376 const_iv (STATX_CTIME)
1377 const_iv (STATX_INO)
1378 const_iv (STATX_SIZE)
1379 const_iv (STATX_BLOCKS)
1380 const_iv (STATX_BASIC_STATS)
1381 const_iv (STATX_ALL)
1382 const_iv (STATX_BTIME)
1383 const_iv (STATX_ATTR_COMPRESSED)
1384 const_iv (STATX_ATTR_IMMUTABLE)
1385 const_iv (STATX_ATTR_APPEND)
1386 const_iv (STATX_ATTR_NODUMP)
1387 const_iv (STATX_ATTR_ENCRYPTED)
1388 const_iv (STATX_ATTR_AUTOMOUNT)
1389
1390 const_iv (AT_FDCWD)
1391 const_iv (AT_SYMLINK_NOFOLLOW)
1392 const_iv (AT_EACCESS)
1393 const_iv (AT_REMOVEDIR)
1394 const_iv (AT_SYMLINK_FOLLOW)
1395 const_iv (AT_NO_AUTOMOUNT)
1396 const_iv (AT_EMPTY_PATH)
1397 const_iv (AT_STATX_SYNC_TYPE)
1398 const_iv (AT_STATX_AS_STAT)
1399 const_iv (AT_STATX_FORCE_SYNC)
1400 const_iv (AT_STATX_DONT_SYNC)
1401 const_iv (AT_RECURSIVE)
1402
1403 const_iv (OPEN_TREE_CLONE)
1404
1405 const_iv (FSOPEN_CLOEXEC)
1406
1407 const_iv (FSPICK_CLOEXEC)
1408 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1409 const_iv (FSPICK_NO_AUTOMOUNT)
1410 const_iv (FSPICK_EMPTY_PATH)
1411
1412 const_iv (MOVE_MOUNT_F_SYMLINKS)
1413 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1414 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1415 const_iv (MOVE_MOUNT_T_SYMLINKS)
1416 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1417 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1418
1419 /* waitid */
1420 const_iv (P_PID)
1421 const_iv (P_PIDFD)
1422 const_iv (P_PGID)
1423 const_iv (P_ALL)
1424
1425 const_iv (FSCONFIG_SET_FLAG)
1426 const_iv (FSCONFIG_SET_STRING)
1427 const_iv (FSCONFIG_SET_BINARY)
1428 const_iv (FSCONFIG_SET_PATH)
1429 const_iv (FSCONFIG_SET_PATH_EMPTY)
1430 const_iv (FSCONFIG_SET_FD)
1431 const_iv (FSCONFIG_CMD_CREATE)
1432 const_iv (FSCONFIG_CMD_RECONFIGURE)
1433
1434 const_iv (MOUNT_ATTR_RDONLY)
1435 const_iv (MOUNT_ATTR_NOSUID)
1436 const_iv (MOUNT_ATTR_NODEV)
1437 const_iv (MOUNT_ATTR_NOEXEC)
1438 const_iv (MOUNT_ATTR__ATIME)
1439 const_iv (MOUNT_ATTR_RELATIME)
1440 const_iv (MOUNT_ATTR_NOATIME)
1441 const_iv (MOUNT_ATTR_STRICTATIME)
1442 const_iv (MOUNT_ATTR_NODIRATIME)
1443
1444 /* sys/mount.h */
1445 const_iv (MS_RDONLY)
1446 const_iv (MS_NOSUID)
1447 const_iv (MS_NODEV)
1448 const_iv (MS_NOEXEC)
1449 const_iv (MS_SYNCHRONOUS)
1450 const_iv (MS_REMOUNT)
1451 const_iv (MS_MANDLOCK)
1452 const_iv (MS_DIRSYNC)
1453 const_iv (MS_NOATIME)
1454 const_iv (MS_NODIRATIME)
1455 const_iv (MS_BIND)
1456 const_iv (MS_MOVE)
1457 const_iv (MS_REC)
1458 const_iv (MS_SILENT)
1459 const_iv (MS_POSIXACL)
1460 const_iv (MS_UNBINDABLE)
1461 const_iv (MS_PRIVATE)
1462 const_iv (MS_SLAVE)
1463 const_iv (MS_SHARED)
1464 const_iv (MS_RELATIME)
1465 const_iv (MS_KERNMOUNT)
1466 const_iv (MS_I_VERSION)
1467 const_iv (MS_STRICTATIME)
1468 const_iv (MS_LAZYTIME)
1469 const_iv (MS_ACTIVE)
1470 const_iv (MS_NOUSER)
1471 const_iv (MS_RMT_MASK)
1472 const_iv (MS_MGC_VAL)
1473 const_iv (MS_MGC_MSK)
1474
1475 const_iv (MNT_FORCE)
1476 const_iv (MNT_DETACH)
1477 const_iv (MNT_EXPIRE)
1478 const_iv (UMOUNT_NOFOLLOW)
1479
1480 const_iv (BLKROSET)
1481 const_iv (BLKROGET)
1482 const_iv (BLKRRPART)
1483 const_iv (BLKGETSIZE)
1484 const_iv (BLKFLSBUF)
1485 const_iv (BLKRASET)
1486 const_iv (BLKRAGET)
1487 const_iv (BLKFRASET)
1488 const_iv (BLKFRAGET)
1489 const_iv (BLKSECTSET)
1490 const_iv (BLKSECTGET)
1491 const_iv (BLKSSZGET)
1492 const_iv (BLKBSZGET)
1493 const_iv (BLKBSZSET)
1494 const_iv (BLKGETSIZE64)
1495
1496 /* these are libeio constants, and are independent of gendef0 */
1497 const_eio (SEEK_SET)
1498 const_eio (SEEK_CUR)
1499 const_eio (SEEK_END)
1500
1501 const_eio (MCL_FUTURE)
1502 const_eio (MCL_CURRENT)
1503 const_eio (MCL_ONFAULT)
1504
1505 const_eio (MS_ASYNC)
1506 const_eio (MS_INVALIDATE)
1507 const_eio (MS_SYNC)
1508
1509 const_eio (MT_MODIFY)
1510
1511 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1512 const_eio (SYNC_FILE_RANGE_WRITE)
1513 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1514
1515 const_eio (FALLOC_FL_KEEP_SIZE)
1516 const_eio (FALLOC_FL_PUNCH_HOLE)
1517 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1518 const_eio (FALLOC_FL_ZERO_RANGE)
1519 const_eio (FALLOC_FL_INSERT_RANGE)
1520 const_eio (FALLOC_FL_UNSHARE_RANGE)
1521
1522 const_eio (RENAME_NOREPLACE)
1523 const_eio (RENAME_EXCHANGE)
1524 const_eio (RENAME_WHITEOUT)
1525
1526 const_eio (READDIR_DENTS)
1527 const_eio (READDIR_DIRS_FIRST)
1528 const_eio (READDIR_STAT_ORDER)
1529 const_eio (READDIR_FOUND_UNKNOWN)
1530
1531 const_eio (DT_UNKNOWN)
1532 const_eio (DT_FIFO)
1533 const_eio (DT_CHR)
1534 const_eio (DT_DIR)
1535 const_eio (DT_BLK)
1536 const_eio (DT_REG)
1537 const_eio (DT_LNK)
1538 const_eio (DT_SOCK)
1539 const_eio (DT_WHT)
1540 };
1541
1542 aio_stash = gv_stashpv ("IO::AIO" , 1);
1543 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1544 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1545 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1546
1547 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1548 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1549
1550 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1551
1552 /* allocate dummy pipe fd for aio_close */
981 { 1553 {
982 off_t sbytes; 1554 int pipefd [2];
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984 1555
985 if (res < 0 && sbytes) 1556 if (
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1557#ifdef _WIN32
987 res = sbytes; 1558 _pipe (pipefd, 1, _O_BINARY) < 0
1559#else
1560 pipe (pipefd) < 0
1561 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1562#endif
1563 || close (pipefd [1]) < 0
1564 )
1565 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1566
1567 close_fd = pipefd [0];
988 } 1568 }
989 1569
990# elif __hpux 1570 reinit ();
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055} 1571}
1056 1572
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO
1379
1380PROTOTYPES: ENABLE
1381
1382BOOT:
1383{
1384 HV *stash = gv_stashpv ("IO::AIO", 1);
1385
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402
1403 if (!create_pipe (respipe))
1404 croak ("cannot set result pipe to nonblocking mode");
1405
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1407}
1408
1409void 1573void
1574reinit ()
1575 PROTOTYPE:
1576
1577void
1410max_poll_reqs (int nreqs) 1578max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1579 PROTOTYPE: $
1412 CODE: 1580 CODE:
1413 max_poll_reqs = nreqs; 1581 eio_set_max_poll_reqs (nreqs);
1414 1582
1415void 1583void
1416max_poll_time (double nseconds) 1584max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1585 PROTOTYPE: $
1418 CODE: 1586 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1587 eio_set_max_poll_time (nseconds);
1420 1588
1421void 1589void
1422min_parallel (int nthreads) 1590min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1591 PROTOTYPE: $
1432 CODE: 1592 CODE:
1433 set_max_idle (nthreads); 1593 eio_set_min_parallel (nthreads);
1434 1594
1435int 1595void
1436max_outstanding (int maxreqs) 1596max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1597 PROTOTYPE: $
1438 CODE: 1598 CODE:
1439 RETVAL = max_outstanding; 1599 eio_set_max_parallel (nthreads);
1600
1601void
1602max_idle (unsigned int nthreads)
1603 PROTOTYPE: $
1604 CODE:
1605 eio_set_max_idle (nthreads);
1606
1607void
1608idle_timeout (unsigned int seconds)
1609 PROTOTYPE: $
1610 CODE:
1611 eio_set_idle_timeout (seconds);
1612
1613void
1614max_outstanding (unsigned int maxreqs)
1615 PROTOTYPE: $
1616 CODE:
1440 max_outstanding = maxreqs; 1617 max_outstanding = maxreqs;
1441 OUTPUT:
1442 RETVAL
1443 1618
1444void 1619void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1620aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1621 PPCODE:
1448{ 1622{
1449 dREQ; 1623 dREQ;
1450 1624
1625 req->type = EIO_WD_OPEN;
1626 req_set_path1 (req, pathname);
1627
1628 REQ_SEND;
1629}
1630
1631void
1632aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1633 PPCODE:
1634{
1635 dREQ;
1636
1451 req->type = REQ_OPEN; 1637 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1638 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1639 req->int1 = flags;
1455 req->mode = mode; 1640 req->int2 = mode;
1456 1641
1457 REQ_SEND; 1642 REQ_SEND;
1458} 1643}
1459 1644
1460void 1645void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1646aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1647 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1648 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1649 aio_fdatasync = EIO_FDATASYNC
1650 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1651 PPCODE:
1468{ 1652{
1653 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1654 dREQ;
1470 1655
1471 req->type = ix; 1656 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1657 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1658 req->int1 = fd;
1474 1659
1475 REQ_SEND (req); 1660 REQ_SEND;
1476} 1661}
1477 1662
1478void 1663void
1664aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1665 PPCODE:
1666{
1667 int fd = s_fileno_croak (fh, 0);
1668 dREQ;
1669
1670 req->type = EIO_SYNC_FILE_RANGE;
1671 req->sv1 = newSVsv (fh);
1672 req->int1 = fd;
1673 req->offs = offset;
1674 req->size = nbytes;
1675 req->int2 = flags;
1676
1677 REQ_SEND;
1678}
1679
1680void
1681aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 int fd = s_fileno_croak (fh, 0);
1685 dREQ;
1686
1687 req->type = EIO_FALLOCATE;
1688 req->sv1 = newSVsv (fh);
1689 req->int1 = fd;
1690 req->int2 = mode;
1691 req->offs = offset;
1692 req->size = len;
1693
1694 REQ_SEND;
1695}
1696
1697void
1698aio_close (SV *fh, SV *callback = &PL_sv_undef)
1699 PPCODE:
1700{
1701 int fd = s_fileno_croak (fh, 0);
1702 dREQ;
1703#if 0
1704 /* partially duplicate logic in s_fileno */
1705 SvGETMAGIC (fh);
1706
1707 if (SvROK (fh))
1708 {
1709 fh = SvRV (fh);
1710 SvGETMAGIC (fh);
1711 }
1712
1713 if (SvTYPE (fh) == SVt_PVGV)
1714 {
1715 /* perl filehandle */
1716 PerlIOUnix_refcnt_inc (fd);
1717 do_close ((GV *)fh, 1);
1718
1719 req->type = EIO_CLOSE;
1720 req->int1 = fd;
1721 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1722 }
1723 else
1724#endif
1725 {
1726 /* fd number */
1727 req->type = EIO_DUP2;
1728 req->int1 = close_fd;
1729 req->sv2 = newSVsv (fh);
1730 req->int2 = fd;
1731 }
1732
1733 REQ_SEND;
1734}
1735
1736void
1737aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1738 PPCODE:
1739{
1740 int fd = s_fileno_croak (fh, 0);
1741 dREQ;
1742
1743 req->type = EIO_SEEK;
1744 req->sv1 = newSVsv (fh);
1745 req->int1 = fd;
1746 req->offs = SvVAL64 (offset);
1747 req->int2 = whence;
1748
1749 REQ_SEND;
1750}
1751
1752void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1753aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1480 ALIAS: 1754 ALIAS:
1481 aio_read = REQ_READ 1755 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1756 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1757 PPCODE:
1485{ 1758{
1486 STRLEN svlen; 1759 STRLEN svlen;
1760 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1761 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1762 UV len = SvUV (length);
1489 1763
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1764 if (dataoffset < 0)
1494 dataoffset += svlen; 1765 dataoffset += svlen;
1495 1766
1496 if (dataoffset < 0 || dataoffset > svlen) 1767 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1768 croak ("dataoffset outside of data scalar");
1498 1769
1499 if (ix == REQ_WRITE) 1770 if (ix == EIO_WRITE)
1500 { 1771 {
1501 /* write: check length and adjust. */ 1772 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1773 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1774 len = svlen - dataoffset;
1504 } 1775 }
1505 else 1776 else
1506 { 1777 {
1507 /* read: grow scalar as necessary */ 1778 /* read: check type and grow scalar as necessary */
1779 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1780 svptr = sv_grow (data, len + dataoffset + 1);
1781 else if (SvCUR (data) < len + dataoffset)
1782 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1783 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1784
1514 { 1785 {
1515 dREQ; 1786 dREQ;
1516 1787
1517 req->type = ix; 1788 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1789 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1790 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1791 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1792 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1793 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1794 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1795 req->stroffset = dataoffset;
1526 1796
1527 if (!SvREADONLY (data)) 1797 if (!SvREADONLY (data))
1528 { 1798 {
1529 SvREADONLY_on (data); 1799 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1803 REQ_SEND;
1534 } 1804 }
1535} 1805}
1536 1806
1537void 1807void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1808aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $$;$ 1809 ALIAS:
1810 aio_ioctl = EIO_IOCTL
1811 aio_fcntl = EIO_FCNTL
1540 PPCODE: 1812 PPCODE:
1541{ 1813{
1542 SV *data; 1814 int fd = s_fileno_croak (fh, 0);
1543 dREQ; 1815 char *svptr;
1544 1816
1545 data = newSV (NAME_MAX); 1817 if (SvPOK (arg) || !SvNIOK (arg))
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK;
1549 req->sv1 = newSVsv (path);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553
1554 REQ_SEND;
1555}
1556
1557void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = REQ_SENDFILE;
1565 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1567 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1569 req->offs = SvVAL64 (in_offset);
1570 req->size = length;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE:
1579{
1580 dREQ;
1581
1582 req->type = REQ_READAHEAD;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1585 req->offs = SvVAL64 (offset);
1586 req->size = length;
1587
1588 REQ_SEND;
1589}
1590
1591void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS:
1594 aio_stat = REQ_STAT
1595 aio_lstat = REQ_LSTAT
1596 PPCODE:
1597{
1598 dREQ;
1599
1600 req->ptr2 = malloc (sizeof (Stat_t));
1601 if (!req->ptr2)
1602 { 1818 {
1603 req_destroy (req); 1819 STRLEN svlen;
1604 croak ("out of memory during aio_stat statdata allocation"); 1820 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1605 } 1821#ifdef IOCPARM_LEN
1822 STRLEN need = IOCPARM_LEN (request);
1823#else
1824 STRLEN need = 256;
1825#endif
1606 1826
1607 req->flags |= FLAG_PTR2_FREE; 1827 if (svlen < need)
1608 req->sv1 = newSVsv (fh_or_path); 1828 svptr = SvGROW (arg, need);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 } 1829 }
1615 else 1830 else
1831 svptr = (char *)SvIV (arg);
1832
1616 { 1833 {
1834 dREQ;
1835
1617 req->type = REQ_FSTAT; 1836 req->type = ix;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1837 req->sv1 = newSVsv (fh);
1838 req->int1 = fd;
1839 req->int2 = (long)request;
1840 req->sv2 = SvREFCNT_inc (arg);
1841 req->ptr2 = svptr;
1842
1843 REQ_SEND;
1619 } 1844 }
1845}
1846
1847void
1848aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1849 ALIAS:
1850 aio_readlink = EIO_READLINK
1851 aio_realpath = EIO_REALPATH
1852 PPCODE:
1853{
1854 dREQ;
1855
1856 req->type = ix;
1857 req_set_path1 (req, pathname);
1620 1858
1621 REQ_SEND; 1859 REQ_SEND;
1622} 1860}
1623 1861
1624void 1862void
1863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1864 PPCODE:
1865{
1866 int ifd = s_fileno_croak (in_fh , 0);
1867 int ofd = s_fileno_croak (out_fh, 1);
1868 dREQ;
1869
1870 req->type = EIO_SENDFILE;
1871 req->sv1 = newSVsv (out_fh);
1872 req->int1 = ofd;
1873 req->sv2 = newSVsv (in_fh);
1874 req->int2 = ifd;
1875 req->offs = in_offset;
1876 req->size = length;
1877
1878 REQ_SEND;
1879}
1880
1881void
1882aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1883 PPCODE:
1884{
1885 int fd = s_fileno_croak (fh, 0);
1886 dREQ;
1887
1888 req->type = EIO_READAHEAD;
1889 req->sv1 = newSVsv (fh);
1890 req->int1 = fd;
1891 req->offs = offset;
1892 req->size = length;
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1899 ALIAS:
1900 aio_stat = EIO_STAT
1901 aio_lstat = EIO_LSTAT
1902 aio_statvfs = EIO_STATVFS
1903 PPCODE:
1904{
1905 dREQ;
1906
1907 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1908
1909 REQ_SEND;
1910}
1911
1912void
1913st_xtime ()
1914 ALIAS:
1915 st_atime = 0x01
1916 st_mtime = 0x02
1917 st_ctime = 0x04
1918 st_btime = 0x08
1919 st_xtime = 0x0f
1920 PPCODE:
1921 EXTEND (SP, 4);
1922 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1923 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1924 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1925 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1926
1927void
1928st_xtimensec ()
1929 ALIAS:
1930 st_atimensec = 0x01
1931 st_mtimensec = 0x02
1932 st_ctimensec = 0x04
1933 st_btimensec = 0x08
1934 st_xtimensec = 0x0f
1935 st_btimesec = 0x10
1936 st_gen = 0x20
1937 PPCODE:
1938 EXTEND (SP, 4);
1939 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1940 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1941 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1942 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1943 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1944 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1945
1946UV
1947major (UV dev)
1948 ALIAS:
1949 minor = 1
1950 CODE:
1951 RETVAL = ix ? minor (dev) : major (dev);
1952 OUTPUT:
1953 RETVAL
1954
1955UV
1956makedev (UV maj, UV min)
1957 CODE:
1958 RETVAL = makedev (maj, min);
1959 OUTPUT:
1960 RETVAL
1961
1962void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1963aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1626 PPCODE: 1964 PPCODE:
1627{ 1965{
1628 dREQ; 1966 dREQ;
1629 1967
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1968 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1969 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1970 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1971
1645 REQ_SEND; 1972 REQ_SEND;
1646} 1973}
1647 1974
1648void 1975void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1976aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1650 PPCODE: 1977 PPCODE:
1651{ 1978{
1652 dREQ; 1979 dREQ;
1653 1980
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1981 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1982 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1983
1668 REQ_SEND; 1984 REQ_SEND;
1669} 1985}
1670 1986
1671void 1987void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1988aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1673 PPCODE: 1989 PPCODE:
1674{ 1990{
1675 dREQ; 1991 dREQ;
1676 1992
1677 req->mode = mode; 1993 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1994 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1995
1691 REQ_SEND; 1996 REQ_SEND;
1692} 1997}
1693 1998
1694void 1999void
1695aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 2000aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1696 PPCODE: 2001 PPCODE:
1697{ 2002{
1698 dREQ; 2003 dREQ;
1699 2004
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 2005 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 2006 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 2007 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703
1704 if (SvPOK (fh_or_path))
1705 {
1706 req->type = REQ_CHOWN;
1707 req->ptr1 = SvPVbyte_nolen (req->sv1);
1708 }
1709 else
1710 {
1711 req->type = REQ_FCHOWN;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1713 }
1714 2008
1715 REQ_SEND; 2009 REQ_SEND;
1716} 2010}
1717 2011
1718void 2012void
2013aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
2014 PPCODE:
2015{
2016 dREQ;
2017
2018 req->type = EIO_READDIR;
2019 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
2020
2021 if (flags & EIO_READDIR_DENTS)
2022 req->int1 |= EIO_READDIR_CUSTOM2;
2023
2024 req_set_path1 (req, pathname);
2025
2026 REQ_SEND;
2027}
2028
2029void
2030aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
2031 PPCODE:
2032{
2033 dREQ;
2034
2035 req->type = EIO_MKDIR;
2036 req->int2 = mode;
2037 req_set_path1 (req, pathname);
2038
2039 REQ_SEND;
2040}
2041
2042void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 2043aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1720 ALIAS: 2044 ALIAS:
1721 aio_unlink = REQ_UNLINK 2045 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 2046 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 2047 aio_readdir = EIO_READDIR
1724 PPCODE: 2048 PPCODE:
1725{ 2049{
1726 dREQ; 2050 dREQ;
1727 2051
1728 req->type = ix; 2052 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 2053 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731 2054
1732 REQ_SEND; 2055 REQ_SEND;
1733} 2056}
1734 2057
1735void 2058void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 2059aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
2060 ALIAS:
2061 aio_link = EIO_LINK
2062 aio_symlink = EIO_SYMLINK
2063 aio_rename = EIO_RENAME
1737 PPCODE: 2064 PPCODE:
1738{ 2065{
1739 dREQ; 2066 eio_wd wd2 = 0;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745
1746 REQ_SEND;
1747}
1748
1749void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS:
1752 aio_link = REQ_LINK
1753 aio_symlink = REQ_SYMLINK
1754 aio_rename = REQ_RENAME
1755 PPCODE:
1756{
1757 dREQ; 2067 dREQ;
1758 2068
1759 req->type = ix; 2069 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 2070 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 2071 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 2072 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 2073
1765 REQ_SEND; 2074 REQ_SEND;
1766} 2075}
1767 2076
1768void 2077void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 2078aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1770 PPCODE: 2079 PPCODE:
1771{ 2080{
2081 eio_wd wd2 = 0;
1772 dREQ; 2082 dREQ;
1773 2083
1774 req->type = REQ_MKNOD; 2084 req->type = EIO_RENAME;
1775 req->sv1 = newSVsv (pathname); 2085 req_set_path1 (req, oldpath);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1); 2086 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1777 req->mode = (mode_t)mode; 2087 req->int2 = flags;
1778 req->offs = dev; 2088 req->int3 = (long)wd2;
1779 2089
1780 REQ_SEND; 2090 REQ_SEND;
1781} 2091}
1782 2092
1783void 2093void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 2094aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1785 PPCODE: 2095 PPCODE:
1786{ 2096{
1787 dREQ; 2097 dREQ;
2098
2099 req->type = EIO_MKNOD;
2100 req->int2 = (mode_t)mode;
2101 req->offs = dev;
2102 req_set_path1 (req, pathname);
2103
2104 REQ_SEND;
2105}
1788 2106
2107void
2108aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2109 ALIAS:
2110 aio_mtouch = EIO_MTOUCH
2111 aio_msync = EIO_MSYNC
2112 PPCODE:
2113{
2114 STRLEN svlen;
2115 char *svptr = SvPVbyte (data, svlen);
2116 UV len = SvUV (length);
2117
2118 if (flags < 0)
2119 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2120
2121 if (offset < 0)
2122 offset += svlen;
2123
2124 if (offset < 0 || offset > svlen)
2125 croak ("offset outside of scalar");
2126
2127 if (!SvOK (length) || len + offset > svlen)
2128 len = svlen - offset;
2129
2130 {
2131 dREQ;
2132
2133 req->type = ix;
2134 req->sv2 = SvREFCNT_inc (data);
2135 req->ptr2 = (char *)svptr + offset;
2136 req->size = len;
2137 req->int1 = flags;
2138
2139 REQ_SEND;
2140 }
2141}
2142
2143void
2144aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2145 PPCODE:
2146{
2147 STRLEN svlen;
2148 char *svptr = SvPVbyte (data, svlen);
2149 UV len = SvUV (length);
2150
2151 if (offset < 0)
2152 offset += svlen;
2153
2154 if (offset < 0 || offset > svlen)
2155 croak ("offset outside of scalar");
2156
2157 if (!SvOK (length) || len + offset > svlen)
2158 len = svlen - offset;
2159
2160 {
2161 dREQ;
2162
2163 req->type = EIO_MLOCK;
2164 req->sv2 = SvREFCNT_inc (data);
2165 req->ptr2 = (char *)svptr + offset;
2166 req->size = len;
2167
2168 REQ_SEND;
2169 }
2170}
2171
2172void
2173aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2174 PPCODE:
2175{
2176 dREQ;
2177
2178 req->type = EIO_MLOCKALL;
2179 req->int1 = flags;
2180
2181 REQ_SEND;
2182}
2183
2184void
2185aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2186 PPCODE:
2187{
2188 int fd = s_fileno_croak (fh, 0);
2189 dREQ;
2190
2191 req->type = EIO_CUSTOM;
2192 req->sv1 = newSVsv (fh);
2193 req->int1 = fd;
2194
2195 req->feed = fiemap;
2196#if HAVE_FIEMAP
2197 /* keep our fingers crossed that the next two types are 64 bit */
2198 req->offs = start;
2199 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2200 req->int2 = flags;
2201 req->int3 = SvOK (count) ? SvIV (count) : -1;
2202#endif
2203
2204 REQ_SEND;
2205}
2206
2207void
2208aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2209 PPCODE:
2210{
2211 char *svptr = 0;
2212
2213 sv_clear_foreign (data);
2214
2215 if (length) /* known length, directly read into scalar */
2216 {
2217 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2218 svptr = sv_grow (data, length + 1);
2219 else if (SvCUR (data) < length)
2220 croak ("length outside of scalar, and cannot grow");
2221 else
2222 svptr = SvPVbyte_nolen (data);
2223 }
2224
2225 {
2226 dREQ;
2227
2228 req->type = EIO_SLURP;
2229 req_set_path1 (req, pathname);
2230 req->offs = offset;
2231 req->size = length;
2232 req->sv2 = SvREFCNT_inc (data);
2233 req->ptr2 = svptr;
2234
2235 if (!SvREADONLY (data))
2236 {
2237 SvREADONLY_on (data);
2238 req->flags |= FLAG_SV2_RO_OFF;
2239 }
2240
2241 REQ_SEND;
2242 }
2243}
2244
2245void
2246aio_busy (double delay, SV *callback = &PL_sv_undef)
2247 PPCODE:
2248{
2249 dREQ;
2250
1789 req->type = REQ_BUSY; 2251 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 2252 req->nv1 = delay < 0. ? 0. : delay;
1791 2253
1792 REQ_SEND; 2254 REQ_SEND;
1793} 2255}
1794 2256
1795void 2257void
1796aio_group (SV *callback=&PL_sv_undef) 2258aio_group (SV *callback = &PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 2259 PPCODE:
1799{ 2260{
1800 dREQ; 2261 dREQ;
1801 2262
1802 req->type = REQ_GROUP; 2263 req->type = EIO_GROUP;
1803 2264
2265 PUTBACK;
1804 req_send (req); 2266 req_submit (req);
2267 SPAGAIN;
2268
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2269 XPUSHs (req_sv (req, aio_grp_stash));
1806} 2270}
1807 2271
1808void 2272void
1809aio_nop (SV *callback=&PL_sv_undef) 2273aio_nop (SV *callback = &PL_sv_undef)
2274 ALIAS:
2275 aio_nop = EIO_NOP
2276 aio_sync = EIO_SYNC
1810 PPCODE: 2277 PPCODE:
1811{ 2278{
1812 dREQ; 2279 dREQ;
1813 2280
1814 req->type = REQ_NOP; 2281 req->type = ix;
1815 2282
1816 REQ_SEND; 2283 REQ_SEND;
1817} 2284}
1818 2285
1819int 2286int
1820aioreq_pri (int pri = 0) 2287aioreq_pri (int pri = NO_INIT)
1821 PROTOTYPE: ;$
1822 CODE: 2288 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 2289 RETVAL = next_pri;
1824 if (items > 0) 2290 if (items > 0)
1825 { 2291 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 2292 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 2293 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 2294 next_pri = pri;
1829 } 2295 }
1830 OUTPUT: 2296 OUTPUT:
1831 RETVAL 2297 RETVAL
1832 2298
1833void 2299void
1834aioreq_nice (int nice = 0) 2300aioreq_nice (int nice = 0)
1835 CODE: 2301 CODE:
1836 nice = next_pri - nice; 2302 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 2303 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 2304 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 2305 next_pri = nice;
1840 2306
1841void 2307void
1842flush () 2308flush ()
1843 PROTOTYPE:
1844 CODE: 2309 CODE:
1845 while (nreqs) 2310 while (eio_nreqs ())
1846 { 2311 {
1847 poll_wait (); 2312 poll_wait ();
1848 poll_cb (); 2313 poll_cb ();
1849 } 2314 }
1850 2315
1851int 2316int
1852poll() 2317poll ()
1853 PROTOTYPE:
1854 CODE: 2318 CODE:
1855 poll_wait (); 2319 poll_wait ();
1856 RETVAL = poll_cb (); 2320 RETVAL = poll_cb ();
1857 OUTPUT: 2321 OUTPUT:
1858 RETVAL 2322 RETVAL
1859 2323
1860int 2324int
1861poll_fileno() 2325poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 2326 CODE:
1864 RETVAL = respipe [0]; 2327 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 2328 OUTPUT:
1866 RETVAL 2329 RETVAL
1867 2330
1868int 2331int
1869poll_cb(...) 2332poll_cb (...)
1870 PROTOTYPE: 2333 PROTOTYPE:
1871 CODE: 2334 CODE:
1872 RETVAL = poll_cb (); 2335 RETVAL = poll_cb ();
1873 OUTPUT: 2336 OUTPUT:
1874 RETVAL 2337 RETVAL
1875 2338
1876void 2339void
1877poll_wait() 2340poll_wait ()
2341 CODE:
2342 poll_wait ();
2343
2344int
2345nreqs ()
2346 CODE:
2347 RETVAL = eio_nreqs ();
2348 OUTPUT:
2349 RETVAL
2350
2351int
2352nready ()
2353 CODE:
2354 RETVAL = eio_nready ();
2355 OUTPUT:
2356 RETVAL
2357
2358int
2359npending ()
2360 CODE:
2361 RETVAL = eio_npending ();
2362 OUTPUT:
2363 RETVAL
2364
2365int
2366nthreads ()
2367 CODE:
2368 RETVAL = eio_nthreads ();
2369 OUTPUT:
2370 RETVAL
2371
2372int
2373fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2374 CODE:
2375 RETVAL = posix_fadvise (fh, offset, length, advice);
2376 OUTPUT:
2377 RETVAL
2378
2379IV
2380sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2381 CODE:
2382 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2383 OUTPUT:
2384 RETVAL
2385
2386void
2387mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2388 PPCODE:
2389 sv_clear_foreign (scalar);
2390{
2391 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2392 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2393 if (addr == (void *)-1)
2394 XSRETURN_NO;
2395
2396 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2397
2398 if (!(prot & PROT_WRITE))
2399 SvREADONLY_on (scalar);
2400
2401 XSRETURN_YES;
2402}
2403
2404void
2405munmap (SV *scalar)
2406 CODE:
2407 sv_clear_foreign (scalar);
2408
2409SV *
2410mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2411 CODE:
2412{
2413 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2414 void *new;
2415
2416 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2417 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2418
2419 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2420
2421 RETVAL = &PL_sv_no;
2422
2423 if (new != (void *)-1)
2424 {
2425 RETVAL = new == (void *)mg->mg_ptr
2426 ? newSVpvn ("0 but true", 10)
2427 : &PL_sv_yes;
2428
2429 mg->mg_ptr = (char *)new;
2430 mg->mg_obj = (SV *)new_length;
2431
2432 SvPVX (scalar) = mg->mg_ptr;
2433 SvCUR_set (scalar, new_length);
2434 }
2435}
2436 OUTPUT:
2437 RETVAL
2438
2439int
2440madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2441 ALIAS:
2442 mprotect = 1
2443 CODE:
2444{
2445 STRLEN svlen;
2446 void *addr = SvPVbyte (scalar, svlen);
2447 STRLEN len = SvUV (length);
2448
2449 if (offset < 0)
2450 offset += svlen;
2451
2452 if (offset < 0 || offset > svlen)
2453 croak ("offset outside of scalar");
2454
2455 if (!SvOK (length) || len + offset > svlen)
2456 len = svlen - offset;
2457
2458 addr = (void *)(((intptr_t)addr) + offset);
2459 eio_page_align (&addr, &len);
2460
2461 switch (ix)
2462 {
2463 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2464 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2465 }
2466}
2467 OUTPUT:
2468 RETVAL
2469
2470int
2471munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2472 CODE:
2473{
2474 STRLEN svlen;
2475 void *addr = SvPVbyte (scalar, svlen);
2476 size_t len = SvUV (length);
2477
2478 if (offset < 0)
2479 offset += svlen;
2480
2481 if (offset < 0 || offset > svlen)
2482 croak ("offset outside of scalar");
2483
2484 if (!SvOK (length) || len + offset > svlen)
2485 len = svlen - offset;
2486
2487 addr = (void *)(((intptr_t)addr) + offset);
2488 eio_page_align (&addr, &len);
2489#if _POSIX_MEMLOCK_RANGE
2490 RETVAL = munlock (addr, len);
2491#else
2492 RETVAL = EIO_ENOSYS ();
2493#endif
2494}
2495 OUTPUT:
2496 RETVAL
2497
2498int
2499mlockall (int flags)
2500 PROTOTYPE: $;
2501 CODE:
2502 RETVAL = eio_mlockall_sync (flags);
2503 OUTPUT:
2504 RETVAL
2505
2506int
2507munlockall ()
2508 CODE:
2509#if _POSIX_MEMLOCK
2510 munlockall ();
2511#else
2512 RETVAL = EIO_ENOSYS ();
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517int
2518statx (SV8 *pathname, int flags, UV mask)
2519 CODE:
2520{
2521 /* undocumented, and might go away, and anyway, should use eio_statx */
2522 SV *wdsv = 0;
2523 SV *pathsv = 0;
2524 eio_wd wd = EIO_CWD;
2525 void *ptr;
2526 int res;
2527
2528 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2529 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2530
2531 SvREFCNT_dec (pathsv);
2532 SvREFCNT_dec (wdsv);
2533}
2534 OUTPUT:
2535 RETVAL
2536
2537U32
2538stx_mode ()
1878 PROTOTYPE: 2539 PROTOTYPE:
1879 CODE: 2540 CODE:
1880 poll_wait (); 2541#if HAVE_STATX
2542 RETVAL = stx.stx_mode;
2543#else
2544 XSRETURN_UNDEF;
2545#endif
2546 OUTPUT:
2547 RETVAL
1881 2548
2549#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2550#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2551#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2552#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2553#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2554#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2555#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2556#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2557#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2558#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2559#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2560#define STATX_OFFSET_size statx_offsetof (stx_size)
2561#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2562#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2563#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2564#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2565#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2566#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2567
2568U32
2569stx_mask ()
2570 PROTOTYPE:
2571 ALIAS:
2572 stx_mask = STATX_OFFSET_mask
2573 stx_blksize = STATX_OFFSET_blksize
2574 stx_nlink = STATX_OFFSET_nlink
2575 stx_uid = STATX_OFFSET_uid
2576 stx_gid = STATX_OFFSET_gid
2577 stx_rdev_major = STATX_OFFSET_rdev_major
2578 stx_rdev_minor = STATX_OFFSET_rdev_minor
2579 stx_dev_major = STATX_OFFSET_dev_major
2580 stx_dev_minor = STATX_OFFSET_dev_minor
2581 CODE:
2582#if HAVE_STATX
2583 RETVAL = *(__u32 *)((char *)&stx + ix);
2584#else
2585 XSRETURN_UNDEF;
2586#endif
2587 OUTPUT:
2588 RETVAL
2589
2590VAL64
2591stx_attributes ()
2592 PROTOTYPE:
2593 ALIAS:
2594 stx_attributes = STATX_OFFSET_attributes
2595 stx_ino = STATX_OFFSET_ino
2596 stx_size = STATX_OFFSET_size
2597 stx_blocks = STATX_OFFSET_blocks
2598 stx_attributes_mask = STATX_OFFSET_attributes_mask
2599 CODE:
2600#if HAVE_STATX
2601 RETVAL = *(__u64 *)((char *)&stx + ix);
2602#else
2603 XSRETURN_UNDEF;
2604#endif
2605 OUTPUT:
2606 RETVAL
2607
2608NV
2609stx_atime ()
2610 PROTOTYPE:
2611 ALIAS:
2612 stx_atime = STATX_OFFSET_atime
2613 stx_btime = STATX_OFFSET_btime
2614 stx_ctime = STATX_OFFSET_ctime
2615 stx_mtime = STATX_OFFSET_mtime
2616 CODE:
2617#if HAVE_STATX
2618 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2619 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2620#else
2621 XSRETURN_UNDEF;
2622#endif
2623 OUTPUT:
2624 RETVAL
2625
2626VAL64
2627stx_atimesec ()
2628 PROTOTYPE:
2629 ALIAS:
2630 stx_atimesec = STATX_OFFSET_atime
2631 stx_btimesec = STATX_OFFSET_btime
2632 stx_ctimesec = STATX_OFFSET_ctime
2633 stx_mtimesec = STATX_OFFSET_mtime
2634 CODE:
2635#if HAVE_STATX
2636 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2637 RETVAL = ts->tv_sec;
2638#else
2639 XSRETURN_UNDEF;
2640#endif
2641 OUTPUT:
2642 RETVAL
2643
2644U32
2645stx_atimensec ()
2646 PROTOTYPE:
2647 ALIAS:
2648 stx_atimensec = STATX_OFFSET_atime
2649 stx_btimensec = STATX_OFFSET_btime
2650 stx_ctimensec = STATX_OFFSET_ctime
2651 stx_mtimensec = STATX_OFFSET_mtime
2652 CODE:
2653#if HAVE_STATX
2654 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2655 RETVAL = ts->tv_nsec;
2656#else
2657 RETVAL = 0;
2658#endif
2659 OUTPUT:
2660 RETVAL
2661
1882void 2662void
1883setsig (int signum = SIGIO) 2663accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2664 PPCODE:
2665{
2666 SV *retval;
2667#if HAVE_ACCEPT4
2668 socklen_t salen_ = salen ? salen + 1 : 0;
2669
2670 if (salen)
2671 {
2672 sv_upgrade (sockaddr, SVt_PV);
2673 sv_grow (sockaddr, salen_);
2674 }
2675
2676 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2677
2678 retval = newmortalFH (res, O_RDWR);
2679
2680 if (res >= 0 && salen > 0)
2681 {
2682 if (salen_ > salen + 1)
2683 salen_ = salen + 1;
2684
2685 SvPOK_only (sockaddr);
2686 SvCUR_set (sockaddr, salen_);
2687 }
2688#else
2689 errno = ENOSYS;
2690 retval = &PL_sv_undef;
2691#endif
2692 XPUSHs (retval);
2693}
2694
2695ssize_t
2696splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2697 CODE:
2698{
2699#if HAVE_LINUX_SPLICE
2700 loff_t off_in_, off_out_;
2701 RETVAL = splice (
2702 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2703 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2704 length, flags
2705 );
2706#else
2707 RETVAL = EIO_ENOSYS ();
2708#endif
2709}
2710 OUTPUT:
2711 RETVAL
2712
2713ssize_t
2714tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2715 CODE:
2716#if HAVE_LINUX_SPLICE
2717 RETVAL = tee (rfh, wfh, length, flags);
2718#else
2719 RETVAL = EIO_ENOSYS ();
2720#endif
2721 OUTPUT:
2722 RETVAL
2723
2724int
2725pipesize (aio_rfd rfh, int new_size = -1)
2726 PROTOTYPE: $;$
2727 CODE:
2728#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2729 if (new_size >= 0)
2730 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2731 else
2732 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2733#else
2734 errno = ENOSYS;
2735 RETVAL = -1;
2736#endif
2737 OUTPUT:
2738 RETVAL
2739
2740void
2741pipe2 (int flags = 0)
1884 PROTOTYPE: ;$ 2742 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE: 2743 PPCODE:
1903{ 2744{
1904 int count; 2745 int fd[2];
2746 int res;
1905 2747
1906 block_sig (); 2748 if (flags)
1907 PUSHMARK (SP); 2749#if HAVE_PIPE2
1908 PUTBACK; 2750 res = pipe2 (fd, flags);
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2751#else
1910 SPAGAIN; 2752 res = (errno = ENOSYS, -1);
1911 unblock_sig (); 2753#endif
2754 else
2755 res = pipe (fd);
1912 2756
1913 if (SvTRUE (ERRSV)) 2757 if (!res)
1914 croak (0); 2758 {
2759 EXTEND (SP, 2);
2760 PUSHs (newmortalFH (fd[0], O_RDONLY));
2761 PUSHs (newmortalFH (fd[1], O_WRONLY));
2762 }
2763}
1915 2764
1916 XSRETURN (count); 2765void
2766pidfd_open (int pid, unsigned int flags = 0)
2767 PPCODE:
2768{
2769 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2770 int fd = syscall (SYS_pidfd_open, pid, flags);
2771 XPUSHs (newmortalFH (fd, O_RDWR));
1917} 2772}
1918 2773
1919int 2774int
1920nreqs() 2775pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1921 PROTOTYPE: 2776 PPCODE:
2777{
2778 int res;
2779#if HAVE_SIGINFO_T
2780 siginfo_t si = { 0 };
2781
2782 if (SvOK (siginfo))
2783 {
2784 HV *hv;
2785 SV **svp;
2786
2787 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2788 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2789
2790 hv = (HV *)SvRV (siginfo);
2791
2792 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2793 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2794 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2795 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2796 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2797 }
2798
2799 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2800 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2801#else
2802 res = (errno = ENOSYS, -1);
2803#endif
2804
2805 XPUSHs (sv_2mortal (newSViv (res)));
2806}
2807
2808void
2809pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2810 PPCODE:
2811{
2812 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2813 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2814 XPUSHs (newmortalFH (fd, O_RDWR));
2815}
2816
2817void
2818eventfd (unsigned int initval = 0, int flags = 0)
2819 PPCODE:
2820{
2821 int fd;
2822#if HAVE_EVENTFD
2823 fd = eventfd (initval, flags);
2824#else
2825 fd = (errno = ENOSYS, -1);
2826#endif
2827
2828 XPUSHs (newmortalFH (fd, O_RDWR));
2829}
2830
2831void
2832timerfd_create (int clockid, int flags = 0)
2833 PPCODE:
2834{
2835 int fd;
2836#if HAVE_TIMERFD
2837 fd = timerfd_create (clockid, flags);
2838#else
2839 fd = (errno = ENOSYS, -1);
2840#endif
2841
2842 XPUSHs (newmortalFH (fd, O_RDWR));
2843}
2844
2845void
2846timerfd_settime (SV *fh, int flags, NV interval, NV value)
2847 PPCODE:
2848{
2849 int fd = s_fileno_croak (fh, 0);
2850#if HAVE_TIMERFD
2851 int res;
2852 struct itimerspec its, ots;
2853
2854 ts_set (&its.it_interval, interval);
2855 ts_set (&its.it_value , value);
2856 res = timerfd_settime (fd, flags, &its, &ots);
2857
2858 if (!res)
2859 {
2860 EXTEND (SP, 2);
2861 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2862 PUSHs (newSVnv (ts_get (&ots.it_value)));
2863 }
2864#else
2865 errno = ENOSYS;
2866#endif
2867}
2868
2869void
2870timerfd_gettime (SV *fh)
2871 PPCODE:
2872{
2873 int fd = s_fileno_croak (fh, 0);
2874#if HAVE_TIMERFD
2875 int res;
2876 struct itimerspec ots;
2877 res = timerfd_gettime (fd, &ots);
2878
2879 if (!res)
2880 {
2881 EXTEND (SP, 2);
2882 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2883 PUSHs (newSVnv (ts_get (&ots.it_value)));
2884 }
2885#else
2886 errno = ENOSYS;
2887#endif
2888}
2889
2890void
2891memfd_create (octet_string pathname, int flags = 0)
2892 PPCODE:
2893{
2894 int fd;
2895#if HAVE_MEMFD_CREATE
2896 fd = memfd_create (pathname, flags);
2897#else
2898 fd = (errno = ENOSYS, -1);
2899#endif
2900
2901 XPUSHs (newmortalFH (fd, O_RDWR));
2902}
2903
2904int
2905fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
1922 CODE: 2906 CODE:
1923 RETVAL = nreqs; 2907{
2908 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2909 char **envp, **argv;
2910 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2911 if (!SvOK (envs))
2912 {
2913 extern char **environ;
2914 envp = environ;
2915 }
2916 else
2917 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2918#if _POSIX_VERSION >= 200809L
2919 RETVAL = fexecve (fd, argv, envp);
2920#else
2921 RETVAL = (errno = ENOSYS, -1);
2922#endif
2923}
2924 OUTPUT: RETVAL
2925
2926int
2927mount (octet_string special, octet_string path, octet_string fstype, UV flags = 0, octet_string_ornull data = 0)
2928 CODE:
2929#if HAVE_MOUNT
2930 RETVAL = mount (special, path, fstype, flags, data);
2931#else
2932 RETVAL = (errno = ENOSYS, -1);
2933#endif
2934 OUTPUT: RETVAL
2935
2936int
2937umount (octet_string path, int flags = 0)
2938 CODE:
2939 if (flags)
2940#if HAVE_UMOUNT2
2941 RETVAL = umount2 (path, flags);
2942#else
2943 RETVAL = (errno = ENOSYS, -1);
2944#endif
2945 else
2946#if HAVE_UMOUNT
2947 RETVAL = umount (path);
2948#else
2949 RETVAL = (errno = ENOSYS, -1);
2950#endif
2951 OUTPUT: RETVAL
2952
2953UV
2954get_fdlimit ()
2955 CODE:
2956#if HAVE_RLIMITS
2957 struct rlimit rl;
2958 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2959 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2960#endif
2961 XSRETURN_UNDEF;
1924 OUTPUT: 2962 OUTPUT:
1925 RETVAL 2963 RETVAL
1926 2964
1927int 2965void
1928nready() 2966min_fdlimit (UV limit = 0x7fffffffU)
1929 PROTOTYPE:
1930 CODE: 2967 CODE:
1931 RETVAL = get_nready (); 2968{
1932 OUTPUT: 2969#if HAVE_RLIMITS
1933 RETVAL 2970 struct rlimit rl;
2971 rlim_t orig_rlim_max;
2972 UV bit;
1934 2973
1935int 2974 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1936npending() 2975 goto fail;
1937 PROTOTYPE: 2976
2977 if (rl.rlim_cur == RLIM_INFINITY)
2978 XSRETURN_YES;
2979
2980 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2981
2982 if (rl.rlim_cur < limit)
2983 {
2984 rl.rlim_cur = limit;
2985
2986 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2987 rl.rlim_max = rl.rlim_cur;
2988 }
2989
2990 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2991 XSRETURN_YES;
2992
2993 if (errno == EPERM)
2994 {
2995 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2996 /* our limit overflows a system-wide limit */
2997 /* try an adaptive algorithm, but do not lower the hardlimit */
2998 rl.rlim_max = 0;
2999 for (bit = 0x40000000U; bit; bit >>= 1)
3000 {
3001 rl.rlim_max |= bit;
3002 rl.rlim_cur = rl.rlim_max;
3003
3004 /* never decrease the hard limit */
3005 if (rl.rlim_max < orig_rlim_max)
3006 break;
3007
3008 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
3009 rl.rlim_max &= ~bit; /* too high, remove bit again */
3010 }
3011
3012 /* now, raise the soft limit to the max permitted */
3013 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
3014 {
3015 rl.rlim_cur = rl.rlim_max;
3016 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
3017 errno = EPERM;
3018 }
3019 }
3020#endif
3021 fail:
3022 XSRETURN_UNDEF;
3023}
3024
3025void _on_next_submit (SV *cb)
1938 CODE: 3026 CODE:
1939 RETVAL = get_npending (); 3027 SvREFCNT_dec (on_next_submit);
1940 OUTPUT: 3028 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1941 RETVAL
1942 3029
1943int 3030PROTOTYPES: DISABLE
1944nthreads() 3031
1945 PROTOTYPE: 3032MODULE = IO::AIO PACKAGE = IO::AIO::WD
3033
3034BOOT:
3035{
3036 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
3037 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
3038}
3039
3040void
3041DESTROY (SV *self)
1946 CODE: 3042 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 3043{
1948 RETVAL = started; 3044 aio_wd wd = SvAIO_WD (self);
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 3045#if HAVE_AT
1950 OUTPUT: 3046 {
1951 RETVAL 3047 SV *callback = &PL_sv_undef;
1952 3048 dREQ; /* clobbers next_pri :/ */
1953PROTOTYPES: DISABLE 3049 next_pri = req->pri; /* restore next_pri */
3050 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
3051 req->type = EIO_WD_CLOSE;
3052 req->wd = wd;
3053 REQ_SEND;
3054 }
3055#else
3056 eio_wd_close_sync (wd);
3057#endif
3058}
1954 3059
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 3060MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 3061
1957void 3062void
1958cancel (aio_req_ornot req) 3063cancel (aio_req_ornot req)
1959 CODE: 3064 CODE:
1960 req_cancel (req); 3065 eio_cancel (req);
1961 3066
1962void 3067void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 3068cb (aio_req_ornot req, SV *callback = NO_INIT)
1964 CODE: 3069 PPCODE:
3070{
3071 if (GIMME_V != G_VOID)
3072 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
3073
3074 if (items > 1)
3075 {
3076 SV *cb_cv = get_cb (callback);
3077
1965 SvREFCNT_dec (req->callback); 3078 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 3079 req->callback = SvREFCNT_inc (cb_cv);
3080 }
3081}
1967 3082
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 3083MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 3084
1970void 3085void
1971add (aio_req grp, ...) 3086add (aio_req grp, ...)
1972 PPCODE: 3087 PPCODE:
1973{ 3088{
1974 int i; 3089 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 3090
1980 if (grp->int1 == 2) 3091 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 3092 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 3093
1983 for (i = 1; i < items; ++i ) 3094 for (i = 1; i < items; ++i )
1984 { 3095 {
3096 aio_req req;
3097
1985 if (GIMME_V != G_VOID) 3098 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3099 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 3100
1988 req = SvAIO_REQ (ST (i)); 3101 req = SvAIO_REQ (ST (i));
1989 3102
1990 if (req) 3103 if (req)
1991 { 3104 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 3105 }
2004} 3106}
2005 3107
2006void 3108void
2007cancel_subs (aio_req_ornot req) 3109cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 3118 AV *av;
2017 3119
2018 grp->errorno = errno; 3120 grp->errorno = errno;
2019 3121
2020 av = newAV (); 3122 av = newAV ();
3123 av_extend (av, items - 1);
2021 3124
2022 for (i = 1; i < items; ++i ) 3125 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 3126 av_push (av, newSVsv (ST (i)));
2024 3127
2025 SvREFCNT_dec (grp->sv1); 3128 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 3135 grp->errorno = errorno;
2033 3136
2034void 3137void
2035limit (aio_req grp, int limit) 3138limit (aio_req grp, int limit)
2036 CODE: 3139 CODE:
2037 grp->int2 = limit; 3140 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 3141
2040void 3142void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 3143feed (aio_req grp, SV *callback = &PL_sv_undef)
2042 CODE: 3144 CODE:
2043{ 3145{
2044 SvREFCNT_dec (grp->sv2); 3146 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 3147 grp->sv2 = newSVsv (callback);
3148 grp->feed = aio_grp_feed;
2046 3149
2047 if (grp->int2 <= 0) 3150 if (grp->int2 <= 0)
2048 grp->int2 = 2; 3151 grp->int2 = 2;
2049 3152
2050 aio_grp_feed (grp); 3153 eio_grp_limit (grp, grp->int2);
2051} 3154}
2052 3155

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