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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.105 by root, Sun Jul 8 11:12:15 2007 UTC vs.
Revision 1.289 by root, Mon Jan 4 22:19:06 2021 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/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
29# undef send 56 #undef send
30# undef recv 57 #undef recv
31# undef stat 58 #undef stat
59 #undef lstat
32# undef fstat 60 #undef fstat
33# define lstat stat
34# undef truncate 61 #undef truncate
35# undef ftruncate 62 #undef ftruncate
36# undef open 63 #undef open
64 #undef link
37# undef close 65 #undef close
38# undef unlink 66 #undef unlink
67 #undef mkdir
39# undef rmdir 68 #undef rmdir
40# undef rename 69 #undef rename
41# undef lseek 70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
42 81
43# define chown(a,b,c) (errno = ENOSYS, -1) 82 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 83 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 84
57#else 85#else
58 86
59# include "autoconf/config.h"
60# include <sys/time.h> 87 #include <sys/time.h>
61# include <sys/select.h> 88 #include <sys/select.h>
89 #include <sys/wait.h>
62# include <unistd.h> 90 #include <unistd.h>
63# include <utime.h> 91 #include <utime.h>
64# include <signal.h> 92 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 93
67#endif 94 #define EIO_STRUCT_STAT Stat_t
68 95
69#if HAVE_SENDFILE 96#endif
70# if __linux 97
71# include <sys/sendfile.h> 98/*****************************************************************************/
72# elif __freebsd 99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
73# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
74# include <sys/uio.h> 124# include <sys/uio.h>
75# elif __hpux 125#endif
76# include <sys/socket.h> 126
77# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
78# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
79# else 208# else
80# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 210# endif
82#endif 211#endif
83 212
84/* number of seconds after which idle threads exit */ 213#ifndef makedev
85#define IDLE_TIMEOUT 10 214# define makedev(maj,min) (((maj) << 8) | (min))
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
91 222
92/* buffer size for various temporary buffers */ 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
93#define AIO_BUFSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
94 227
95/* use NV for 32 bit perls as it allows larger offsets */ 228#if PAGESIZE <= 0
96#if IVSIZE >= 8 229# define PAGESIZE sysconf (_SC_PAGESIZE)
97# define SvVAL64 SvIV 230#endif
231
232/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
98#else 239#else
99# define SvVAL64 SvNV 240# define syscall(nr,...) (errno = ENOSYS, -1)
100#endif 241#endif
101 242
102#define dBUF \ 243/*****************************************************************************/
103 char *aio_buf; \ 244
104 X_LOCK (wrklock); \ 245#if !_POSIX_MAPPED_FILES
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
106 X_UNLOCK (wrklock); \ 247# define munmap(addr,length) EIO_ENOSYS ()
107 if (!aio_buf) \ 248#endif
249
250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
108 return -1; 278 return 0;
279}
109 280
110typedef SV SV8; /* byte-sv, used for argument-checking */ 281static MGVTBL mmap_vtbl = {
111 282 0, 0, 0, 0, mmap_free
112enum {
113 REQ_QUIT,
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 283};
129 284
130#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
131#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
132
133typedef struct aio_cb
134{ 287{
135 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
136 290
137 SV *callback; 291 SvREADONLY_off (sv);
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144 292
145 STRLEN stroffset; 293 if (SvPVX (sv) != mg->mg_ptr)
146 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 295
151 unsigned char flags; 296 SvCUR_set (sv, 0);
152 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
153 299
154 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
156} aio_cb;
157 302
158enum { 303static MGVTBL sysfree_vtbl = {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */ 304 0, 0, 0, 0, sysfree_free
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162}; 305};
163 306
164typedef aio_cb *aio_req; 307/*****************************************************************************/
165typedef aio_cb *aio_req_ornot;
166 308
167enum { 309/* helper: set scalar to foreign ptr with custom free */
168 PRI_MIN = -4, 310ecb_noinline
169 PRI_MAX = 4, 311static void
170 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
171 DEFAULT_PRI = 0,
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{ 313{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 314 sv_force_normal (sv);
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187 315
188static thread_t main_tid; 316 /* we store the length in mg_obj, as namlen is I32 :/ */
189static int main_sig; 317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
190static int block_sig_level; 318 ->mg_obj = (SV *)length;
191 319
192void block_sig () 320 SvUPGRADE (sv, SVt_PV); /* nop... */
193{
194 sigset_t ss;
195 321
196 if (block_sig_level++) 322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329}
330
331static void
332sv_clear_foreign (SV *sv)
333{
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
344
345/*****************************************************************************/
346
347static void
348fiemap (eio_req *req)
349{
350 req->result = -1;
351
352#if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
197 return; 368 return;
198 369
199 if (!main_sig) 370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 378 return;
201 379
202 sigemptyset (&ss); 380 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 381 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 383 goto done;
206 384
207void unblock_sig () 385 /* else we have to loop -
208{ 386 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
210 391
211 if (--block_sig_level) 392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 393
214 if (!main_sig) 394 for (;;)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 { 395 {
247 closedir (wrk->dirp); 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
248 wrk->dirp = 0; 397 char scratch[3072];
249 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
250 399
251 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
255 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 405
258static void worker_free (worker *wrk) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0; 407 return;
353 408
354 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
355 411
356 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
359
360 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 421 {
362 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 423
365 return req; 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
366 } 432 }
367 } 433 }
368 434
369 abort (); 435done:
370} 436 req->result = 0;
371 437
372static int poll_cb (); 438#else
373static int req_invoke (aio_req req); 439 errno = ENOSYS;
440#endif
441}
442
443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454#endif
455
456enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458};
459
460typedef eio_req *aio_req;
461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
463
464static SV *on_next_submit;
465static int next_pri = EIO_PRI_DEFAULT;
466static int max_outstanding;
467
468static s_epipe respipe;
469
374static void req_destroy (aio_req req); 470static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
376 472
473static void
474want_poll (void)
475{
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478}
479
480static void
481done_poll (void)
482{
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485}
486
377/* must be called at most once */ 487/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
379{ 491{
380 if (!req->self) 492 if (!req->self)
381 { 493 {
382 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 496 }
385 497
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 499}
388 500
389static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
390{ 510{
391 MAGIC *mg; 511 MAGIC *mg;
392 512
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
395 519
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 521
398 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
399} 523}
400 524
525static aio_wd
526SvAIO_WD (SV *sv)
527{
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534}
535
536static SV *
537newmortalFH (int fd, int flags)
538{
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559}
560
561static void
401static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
402{ 563{
403 block_sig (); 564 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 565 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 566 dSP;
412 567
413 ENTER; 568 ENTER;
414 SAVETMPS; 569 SAVETMPS;
415 PUSHMARK (SP); 570 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 572 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 574 SPAGAIN;
420 FREETMPS; 575 FREETMPS;
421 LEAVE; 576 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 577 }
432
433 unblock_sig ();
434} 578}
435 579
436static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
437{ 583{
438 --grp->size; 584 eio_submit (req);
439 585
440 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 587 {
446 block_sig (); 588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
447 590
448 if (!req_invoke (grp)) 591 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 592
455 req_destroy (grp); 593 PUSHMARK (SP);
456 unblock_sig (); 594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
457 } 596 }
458} 597}
459 598
599static int
460static int req_invoke (aio_req req) 600req_invoke (eio_req *req)
461{ 601{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 602 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 603 SvREADONLY_off (req->sv2);
466 604
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 605 if (!EIO_CANCELLED (req) && req->callback)
468 { 606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
469 ENTER; 611 ENTER;
470 SAVETMPS; 612 SAVETMPS;
471 PUSHMARK (SP); 613 PUSHMARK (SP);
472 EXTEND (SP, 1); 614 EXTEND (SP, 1);
473 615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
627 }
628
474 switch (req->type) 629 switch (req->type)
475 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
476 case REQ_READDIR: 635 case EIO_READDIR:
477 { 636 {
478 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
479 638
480 if (req->result >= 0) 639 if (req->result >= 0)
481 { 640 {
482 int i; 641 int i;
483 char *buf = req->ptr2; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 644 AV *av = newAV ();
485 645
486 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
487 647
488 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
489 { 649 {
490 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
492 av_store (av, i, sv); 674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
494 } 684 }
495 685
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 687 }
498 688
499 PUSHs (rv); 689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 693 }
501 break; 694 break;
502 695
503 case REQ_OPEN: 696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
504 { 702 {
505 /* convert fd to fh */ 703 SV *rv = &PL_sv_undef;
506 SV *fh; 704
705#ifndef _WIN32
706 if (req->result >= 0)
707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
709 HV *hv = newHV ();
710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
711 * chooses to make it a struct.
712 */
713 unsigned long fsid = 0;
714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
507 715
508 PUSHs (sv_2mortal (newSViv (req->result))); 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
509 PUTBACK;
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
511 SPAGAIN;
512 717
513 fh = POPs; 718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
514 PUSHMARK (SP); 719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
729 }
730#endif
731
515 XPUSHs (fh); 732 PUSHs (rv);
516 } 733 }
734
517 break; 735 break;
518 736
519 case REQ_GROUP: 737 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
521 739
522 if (req->sv1) 740 if (req->sv1)
523 { 741 {
524 int i; 742 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
530 } 748 }
531 break; 749 break;
532 750
533 case REQ_NOP: 751 case EIO_NOP:
534 case REQ_BUSY: 752 case EIO_BUSY:
535 break; 753 break;
536 754
537 case REQ_READLINK: 755 case EIO_READLINK:
756 case EIO_REALPATH:
538 if (req->result > 0) 757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
539 { 813 {
540 SvCUR_set (req->sv2, req->result); 814#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845#endif
543 } 846 }
847 else
848 PUSHs (sv_result);
544 break; 849 break;
545 850
546 case REQ_STAT: 851#if 0
547 case REQ_LSTAT: 852 case EIO_CLOSE:
548 case REQ_FSTAT: 853 PerlIOUnix_refcnt_dec (req->int1);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
550 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result)));
553 break; 854 break;
855#endif
554 856
555 case REQ_READ: 857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 858 if (req->result > 0)
557 *SvEND (req->sv2) = 0; 859 SvIV_set (sv_result, 0);
558 PUSHs (sv_2mortal (newSViv (req->result))); 860 /* FALLTHROUGH */
559 break;
560 861
561 default: 862 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
563 break; 864 break;
564 } 865 }
565 866
566 errno = req->errorno; 867 errno = req->errorno;
567 868
568 PUTBACK; 869 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
571 877
572 FREETMPS; 878 FREETMPS;
573 LEAVE; 879 LEAVE;
880
881 PUTBACK;
574 } 882 }
575 883
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 884 return !!SvTRUE (ERRSV);
591} 885}
592 886
887static void
593static void req_destroy (aio_req req) 888req_destroy (aio_req req)
594{ 889{
595 if (req->self) 890 if (req->self)
596 { 891 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
599 } 894 }
600 895
601 SvREFCNT_dec (req->sv1); 896 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
604 901
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 902 free (req);
609} 903}
610 904
905static void
611static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
612{ 907{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
616 return; 909 return;
617 910
618 SvREFCNT_dec (grp->sv2); 911 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 912 grp->sv2 = 0;
620 913
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 915}
624 916
625static void req_cancel (aio_req req) 917ecb_cold
626{
627 req->flags |= FLAG_CANCELLED;
628
629 req_cancel_subs (req);
630}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637
638static void 918static void
639create_pipe (int fd[2]) 919create_respipe (void)
640{ 920{
641#ifdef _WIN32 921 if (s_epipe_renew (&respipe))
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe"); 922 croak ("IO::AIO: unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655} 923}
656 924
657X_THREAD_PROC (aio_proc); 925static void
658 926poll_wait (void)
659static void start_thread (void)
660{ 927{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 928 while (eio_nreqs ())
757 { 929 {
758 int size; 930 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 931
932 X_LOCK (EIO_POOL->reslock);
760 size = res_queue.size; 933 size = EIO_POOL->res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 934 X_UNLOCK (EIO_POOL->reslock);
762 935
763 if (size) 936 if (size)
764 return; 937 return;
765 938
766 maybe_start_thread (); 939 etp_maybe_start_thread (EIO_POOL);
767 940
768 FD_ZERO (&rfd); 941 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 942 }
773} 943}
774 944
775static int poll_cb () 945static int
946poll_cb (void)
776{ 947{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 948 for (;;)
790 { 949 {
791 for (;;) 950 int res = eio_poll ();
951
952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960}
961
962ecb_cold
963static void
964reinit (void)
965{
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970}
971
972/*****************************************************************************/
973
974static SV *
975get_cb (SV *cb_sv)
976{
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979}
980
981ecb_noinline
982static aio_req ecb_noinline
983dreq (SV *callback)
984{
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000}
1001
1002#define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014ecb_inline
1015void
1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017{
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 1024 {
793 maybe_start_thread (); 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
794 1027
795 X_LOCK (reslock); 1028 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 1029 {
800 --npending; 1030 *wd = SvAIO_WD (wdob);
801 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (respipe_read (respipe [0], buf, 4) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 } 1032 }
823 else 1033 else
824 { 1034 *wd = EIO_INVALID_WD;
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0);
830 }
831
832 count++;
833 }
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 } 1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
848 1046
849 if (nreqs <= max_outstanding) 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049}
1050
1051ecb_noinline
1052static void
1053req_set_path1 (aio_req req, SV *path)
1054{
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056}
1057
1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 1072 break;
851 1073
852 poll_wait (); 1074 default:
853 1075 req->type = type_path;
854 ++maxreqs; 1076 req_set_path1 (req, fh_or_path);
1077 break;
855 } 1078 }
856
857 unblock_sig ();
858 return count;
859} 1079}
860 1080
861/*****************************************************************************/ 1081/*****************************************************************************/
862/* work around various missing functions */
863 1082
864#if !HAVE_PREADWRITE 1083static void
865# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{ 1085{
877 ssize_t res; 1086 ts->tv_sec = value;
878 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888} 1088}
889 1089
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
891{ 1092{
892 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903} 1094}
904#endif
905 1095
906#ifndef HAVE_FUTIMES 1096/*****************************************************************************/
907 1097
908# define utimes(path,times) aio_utimes (path, times) 1098XS(boot_IO__AIO) ecb_cold;
909# define futimes(fd,times) aio_futimes (fd, times)
910 1099
911int aio_utimes (const char *filename, const struct timeval times[2]) 1100MODULE = IO::AIO PACKAGE = IO::AIO
912{
913 if (times)
914 {
915 struct utimbuf buf;
916 1101
917 buf.actime = times[0].tv_sec; 1102PROTOTYPES: ENABLE
918 buf.modtime = times[1].tv_sec;
919 1103
920 return utime (filename, &buf); 1104BOOT:
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{ 1105{
928 errno = ENOSYS; 1106 static const struct {
929 return -1; 1107 const char *name;
930} 1108 IV iv;
1109 } *civ, const_iv[] = {
1110# define const_niv(name, value) { # name, (IV) value },
1111# define const_iv(name) { # name, (IV) name },
1112# define const_eio(name) { # name, (IV) EIO_ ## name },
931 1113
932#endif 1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
933 1119
934#if !HAVE_FDATASYNC 1120 /* for lseek */
935# define fdatasync fsync 1121 const_iv (SEEK_DATA)
936#endif 1122 const_iv (SEEK_HOLE)
937 1123
938#if !HAVE_READAHEAD 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
940 1130
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
942{ 1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
943 size_t todo = count; 1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
944 dBUF; 1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
945 1136
946 while (todo > 0) 1137 /* the second block will be 0 when missing */
947 { 1138 const_iv (O_ACCMODE)
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949 1139
950 pread (fd, aio_buf, len, offset); 1140 const_iv (O_RDONLY)
951 offset += len; 1141 const_iv (O_WRONLY)
952 todo -= len; 1142 const_iv (O_RDWR)
953 } 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
954 1147
955 errno = 0; 1148 const_iv (O_ASYNC)
956 return count; 1149 const_iv (O_DIRECT)
957} 1150 const_iv (O_NOATIME)
958 1151
959#endif 1152 const_iv (O_CLOEXEC)
1153 const_iv (O_NOCTTY)
1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
960 1165
961#if !HAVE_READDIR_R 1166 const_iv (S_IFIFO)
962# define readdir_r aio_readdir_r 1167 const_iv (S_IFCHR)
1168 const_iv (S_IFBLK)
1169 const_iv (S_IFLNK)
1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
963 1175
964static mutex_t readdirlock = X_MUTEX_INIT; 1176 const_iv (ST_RDONLY)
965 1177 const_iv (ST_NOSUID)
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 1178 const_iv (ST_NODEV)
967{ 1179 const_iv (ST_NOEXEC)
968 X_DIRENT *e; 1180 const_iv (ST_SYNCHRONOUS)
969 int errorno; 1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
970 1188
971 X_LOCK (readdirlock); 1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
972 1193
973 e = readdir (dirp); 1194 const_iv (MAP_PRIVATE)
974 errorno = errno; 1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
975 1198
976 if (e) 1199 /* linuxish */
977 { 1200 const_iv (MAP_LOCKED)
978 *res = ent; 1201 const_iv (MAP_NORESERVE)
979 strcpy (ent->d_name, e->d_name); 1202 const_iv (MAP_POPULATE)
980 } 1203 const_iv (MAP_NONBLOCK)
981 else 1204 const_iv (MAP_GROWSDOWN)
982 *res = 0; 1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
983 1208
984 X_UNLOCK (readdirlock); 1209 const_iv (MREMAP_MAYMOVE)
1210 const_iv (MREMAP_FIXED)
985 1211
986 errno = errorno; 1212 const_iv (MSG_CMSG_CLOEXEC)
987 return e ? 0 : -1; 1213 const_iv (SOCK_CLOEXEC)
988}
989#endif
990 1214
991/* sendfile always needs emulation */ 1215 const_iv (F_DUPFD_CLOEXEC)
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995 1216
996 if (!count) 1217 const_iv (F_ADD_SEALS)
997 return 0; 1218 const_iv (F_GET_SEALS)
1219 const_iv (F_SEAL_SEAL)
1220 const_iv (F_SEAL_SHRINK)
1221 const_iv (F_SEAL_GROW)
1222 const_iv (F_SEAL_WRITE)
998 1223
999#if HAVE_SENDFILE 1224 const_iv (F_OFD_GETLK)
1000# if __linux 1225 const_iv (F_OFD_SETLK)
1001 res = sendfile (ofd, ifd, &offset, count); 1226 const_iv (F_OFD_GETLKW)
1002 1227
1003# elif __freebsd 1228 const_iv (FIFREEZE)
1004 /* 1229 const_iv (FITHAW)
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts 1230 const_iv (FITRIM)
1006 * wasted on making it similar to other I/O functions. 1231 const_iv (FICLONE)
1007 */ 1232 const_iv (FICLONERANGE)
1233 const_iv (FIDEDUPERANGE)
1234
1235 const_iv (FS_IOC_GETFLAGS)
1236 const_iv (FS_IOC_SETFLAGS)
1237 const_iv (FS_IOC_GETVERSION)
1238 const_iv (FS_IOC_SETVERSION)
1239 const_iv (FS_IOC_FIEMAP)
1240 const_iv (FS_IOC_FSGETXATTR)
1241 const_iv (FS_IOC_FSSETXATTR)
1242 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1243 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1244 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1245
1246 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1247
1248 const_iv (FS_SECRM_FL)
1249 const_iv (FS_UNRM_FL)
1250 const_iv (FS_COMPR_FL)
1251 const_iv (FS_SYNC_FL)
1252 const_iv (FS_IMMUTABLE_FL)
1253 const_iv (FS_APPEND_FL)
1254 const_iv (FS_NODUMP_FL)
1255 const_iv (FS_NOATIME_FL)
1256 const_iv (FS_DIRTY_FL)
1257 const_iv (FS_COMPRBLK_FL)
1258 const_iv (FS_NOCOMP_FL)
1259 const_iv (FS_ENCRYPT_FL)
1260 const_iv (FS_BTREE_FL)
1261 const_iv (FS_INDEX_FL)
1262 const_iv (FS_JOURNAL_DATA_FL)
1263 const_iv (FS_NOTAIL_FL)
1264 const_iv (FS_DIRSYNC_FL)
1265 const_iv (FS_TOPDIR_FL)
1266 const_iv (FS_FL_USER_MODIFIABLE)
1267
1268 const_iv (FS_XFLAG_REALTIME)
1269 const_iv (FS_XFLAG_PREALLOC)
1270 const_iv (FS_XFLAG_IMMUTABLE)
1271 const_iv (FS_XFLAG_APPEND)
1272 const_iv (FS_XFLAG_SYNC)
1273 const_iv (FS_XFLAG_NOATIME)
1274 const_iv (FS_XFLAG_NODUMP)
1275 const_iv (FS_XFLAG_RTINHERIT)
1276 const_iv (FS_XFLAG_PROJINHERIT)
1277 const_iv (FS_XFLAG_NOSYMLINKS)
1278 const_iv (FS_XFLAG_EXTSIZE)
1279 const_iv (FS_XFLAG_EXTSZINHERIT)
1280 const_iv (FS_XFLAG_NODEFRAG)
1281 const_iv (FS_XFLAG_FILESTREAM)
1282 const_iv (FS_XFLAG_DAX)
1283 const_iv (FS_XFLAG_HASATTR)
1284
1285 const_iv (FIEMAP_FLAG_SYNC)
1286 const_iv (FIEMAP_FLAG_XATTR)
1287 const_iv (FIEMAP_FLAGS_COMPAT)
1288 const_iv (FIEMAP_EXTENT_LAST)
1289 const_iv (FIEMAP_EXTENT_UNKNOWN)
1290 const_iv (FIEMAP_EXTENT_DELALLOC)
1291 const_iv (FIEMAP_EXTENT_ENCODED)
1292 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1293 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1294 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1295 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1296 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1297 const_iv (FIEMAP_EXTENT_MERGED)
1298 const_iv (FIEMAP_EXTENT_SHARED)
1299
1300 const_iv (SPLICE_F_MOVE)
1301 const_iv (SPLICE_F_NONBLOCK)
1302 const_iv (SPLICE_F_MORE)
1303 const_iv (SPLICE_F_GIFT)
1304
1305 const_iv (EFD_CLOEXEC)
1306 const_iv (EFD_NONBLOCK)
1307 const_iv (EFD_SEMAPHORE)
1308
1309 const_iv (MFD_CLOEXEC)
1310 const_iv (MFD_ALLOW_SEALING)
1311 const_iv (MFD_HUGETLB)
1312
1313 const_iv (CLOCK_REALTIME)
1314 const_iv (CLOCK_MONOTONIC)
1315 const_iv (CLOCK_BOOTTIME)
1316 const_iv (CLOCK_REALTIME_ALARM)
1317 const_iv (CLOCK_BOOTTIME_ALARM)
1318
1319 const_iv (TFD_NONBLOCK)
1320 const_iv (TFD_CLOEXEC)
1321
1322 const_iv (TFD_TIMER_ABSTIME)
1323 const_iv (TFD_TIMER_CANCEL_ON_SET)
1324
1325 const_iv (STATX_TYPE)
1326 const_iv (STATX_MODE)
1327 const_iv (STATX_NLINK)
1328 const_iv (STATX_UID)
1329 const_iv (STATX_GID)
1330 const_iv (STATX_ATIME)
1331 const_iv (STATX_MTIME)
1332 const_iv (STATX_CTIME)
1333 const_iv (STATX_INO)
1334 const_iv (STATX_SIZE)
1335 const_iv (STATX_BLOCKS)
1336 const_iv (STATX_BASIC_STATS)
1337 const_iv (STATX_ALL)
1338 const_iv (STATX_BTIME)
1339 const_iv (STATX_ATTR_COMPRESSED)
1340 const_iv (STATX_ATTR_IMMUTABLE)
1341 const_iv (STATX_ATTR_APPEND)
1342 const_iv (STATX_ATTR_NODUMP)
1343 const_iv (STATX_ATTR_ENCRYPTED)
1344 const_iv (STATX_ATTR_AUTOMOUNT)
1345
1346 const_iv (AT_FDCWD)
1347 const_iv (AT_SYMLINK_NOFOLLOW)
1348 const_iv (AT_EACCESS)
1349 const_iv (AT_REMOVEDIR)
1350 const_iv (AT_SYMLINK_FOLLOW)
1351 const_iv (AT_NO_AUTOMOUNT)
1352 const_iv (AT_EMPTY_PATH)
1353 const_iv (AT_STATX_SYNC_TYPE)
1354 const_iv (AT_STATX_AS_STAT)
1355 const_iv (AT_STATX_FORCE_SYNC)
1356 const_iv (AT_STATX_DONT_SYNC)
1357 const_iv (AT_RECURSIVE)
1358
1359 const_iv (OPEN_TREE_CLONE)
1360
1361 const_iv (FSOPEN_CLOEXEC)
1362
1363 const_iv (FSPICK_CLOEXEC)
1364 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1365 const_iv (FSPICK_NO_AUTOMOUNT)
1366 const_iv (FSPICK_EMPTY_PATH)
1367
1368 const_iv (MOVE_MOUNT_F_SYMLINKS)
1369 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1370 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1371 const_iv (MOVE_MOUNT_T_SYMLINKS)
1372 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1373 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1374
1375 /* waitid */
1376 const_iv (P_PID)
1377 const_iv (P_PIDFD)
1378 const_iv (P_PGID)
1379 const_iv (P_ALL)
1380
1381 const_iv (FSCONFIG_SET_FLAG)
1382 const_iv (FSCONFIG_SET_STRING)
1383 const_iv (FSCONFIG_SET_BINARY)
1384 const_iv (FSCONFIG_SET_PATH)
1385 const_iv (FSCONFIG_SET_PATH_EMPTY)
1386 const_iv (FSCONFIG_SET_FD)
1387 const_iv (FSCONFIG_CMD_CREATE)
1388 const_iv (FSCONFIG_CMD_RECONFIGURE)
1389
1390 const_iv (MOUNT_ATTR_RDONLY)
1391 const_iv (MOUNT_ATTR_NOSUID)
1392 const_iv (MOUNT_ATTR_NODEV)
1393 const_iv (MOUNT_ATTR_NOEXEC)
1394 const_iv (MOUNT_ATTR__ATIME)
1395 const_iv (MOUNT_ATTR_RELATIME)
1396 const_iv (MOUNT_ATTR_NOATIME)
1397 const_iv (MOUNT_ATTR_STRICTATIME)
1398 const_iv (MOUNT_ATTR_NODIRATIME)
1399
1400 /* these are libeio constants, and are independent of gendef0 */
1401 const_eio (SEEK_SET)
1402 const_eio (SEEK_CUR)
1403 const_eio (SEEK_END)
1404
1405 const_eio (MCL_FUTURE)
1406 const_eio (MCL_CURRENT)
1407 const_eio (MCL_ONFAULT)
1408
1409 const_eio (MS_ASYNC)
1410 const_eio (MS_INVALIDATE)
1411 const_eio (MS_SYNC)
1412
1413 const_eio (MT_MODIFY)
1414
1415 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1416 const_eio (SYNC_FILE_RANGE_WRITE)
1417 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1418
1419 const_eio (FALLOC_FL_KEEP_SIZE)
1420 const_eio (FALLOC_FL_PUNCH_HOLE)
1421 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1422 const_eio (FALLOC_FL_ZERO_RANGE)
1423 const_eio (FALLOC_FL_INSERT_RANGE)
1424 const_eio (FALLOC_FL_UNSHARE_RANGE)
1425
1426 const_eio (RENAME_NOREPLACE)
1427 const_eio (RENAME_EXCHANGE)
1428 const_eio (RENAME_WHITEOUT)
1429
1430 const_eio (READDIR_DENTS)
1431 const_eio (READDIR_DIRS_FIRST)
1432 const_eio (READDIR_STAT_ORDER)
1433 const_eio (READDIR_FOUND_UNKNOWN)
1434
1435 const_eio (DT_UNKNOWN)
1436 const_eio (DT_FIFO)
1437 const_eio (DT_CHR)
1438 const_eio (DT_DIR)
1439 const_eio (DT_BLK)
1440 const_eio (DT_REG)
1441 const_eio (DT_LNK)
1442 const_eio (DT_SOCK)
1443 const_eio (DT_WHT)
1444 };
1445
1446 aio_stash = gv_stashpv ("IO::AIO" , 1);
1447 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1448 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1449 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1450
1451 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1452 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1453
1454 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1455
1456 /* allocate dummy pipe fd for aio_close */
1008 { 1457 {
1009 off_t sbytes; 1458 int pipefd [2];
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011 1459
1012 if (res < 0 && sbytes) 1460 if (
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1461#ifdef _WIN32
1014 res = sbytes; 1462 _pipe (pipefd, 1, _O_BINARY) < 0
1463#else
1464 pipe (pipefd) < 0
1465 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1466#endif
1467 || close (pipefd [1]) < 0
1468 )
1469 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1470
1471 close_fd = pipefd [0];
1015 } 1472 }
1016 1473
1017# elif __hpux 1474 reinit ();
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082} 1475}
1083 1476
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144
1145/*****************************************************************************/
1146
1147X_THREAD_PROC (aio_proc)
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 respipe_close (respipe [0]);
1376 respipe_close (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381}
1382
1383#define dREQ \
1384 aio_req req; \
1385 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \
1387 \
1388 if (SvOK (callback) && !SvROK (callback)) \
1389 croak ("callback must be undef or of reference type"); \
1390 \
1391 Newz (0, req, 1, aio_cb); \
1392 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \
1394 \
1395 req->callback = newSVsv (callback); \
1396 req->pri = req_pri
1397
1398#define REQ_SEND \
1399 req_send (req); \
1400 \
1401 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403
1404MODULE = IO::AIO PACKAGE = IO::AIO
1405
1406PROTOTYPES: ENABLE
1407
1408BOOT:
1409{
1410 HV *stash = gv_stashpv ("IO::AIO", 1);
1411
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424
1425 X_COND_CHECK (reqwait);
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430
1431 create_pipe (respipe);
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434}
1435
1436void 1477void
1478reinit ()
1479 PROTOTYPE:
1480
1481void
1437max_poll_reqs (int nreqs) 1482max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1483 PROTOTYPE: $
1439 CODE: 1484 CODE:
1440 max_poll_reqs = nreqs; 1485 eio_set_max_poll_reqs (nreqs);
1441 1486
1442void 1487void
1443max_poll_time (double nseconds) 1488max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1489 PROTOTYPE: $
1445 CODE: 1490 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1491 eio_set_max_poll_time (nseconds);
1447 1492
1448void 1493void
1449min_parallel (int nthreads) 1494min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1495 PROTOTYPE: $
1459 CODE: 1496 CODE:
1460 set_max_idle (nthreads); 1497 eio_set_min_parallel (nthreads);
1461 1498
1462int 1499void
1463max_outstanding (int maxreqs) 1500max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1501 PROTOTYPE: $
1465 CODE: 1502 CODE:
1466 RETVAL = max_outstanding; 1503 eio_set_max_parallel (nthreads);
1504
1505void
1506max_idle (unsigned int nthreads)
1507 PROTOTYPE: $
1508 CODE:
1509 eio_set_max_idle (nthreads);
1510
1511void
1512idle_timeout (unsigned int seconds)
1513 PROTOTYPE: $
1514 CODE:
1515 eio_set_idle_timeout (seconds);
1516
1517void
1518max_outstanding (unsigned int maxreqs)
1519 PROTOTYPE: $
1520 CODE:
1467 max_outstanding = maxreqs; 1521 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 1522
1471void 1523void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1524aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1525 PPCODE:
1475{ 1526{
1476 dREQ; 1527 dREQ;
1477 1528
1529 req->type = EIO_WD_OPEN;
1530 req_set_path1 (req, pathname);
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 dREQ;
1540
1478 req->type = REQ_OPEN; 1541 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1542 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1543 req->int1 = flags;
1482 req->mode = mode; 1544 req->int2 = mode;
1483 1545
1484 REQ_SEND; 1546 REQ_SEND;
1485} 1547}
1486 1548
1487void 1549void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1550aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1551 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1552 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1553 aio_fdatasync = EIO_FDATASYNC
1554 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1555 PPCODE:
1495{ 1556{
1557 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1558 dREQ;
1497 1559
1498 req->type = ix; 1560 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1561 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1562 req->int1 = fd;
1501 1563
1502 REQ_SEND (req); 1564 REQ_SEND;
1503} 1565}
1504 1566
1505void 1567void
1568aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1569 PPCODE:
1570{
1571 int fd = s_fileno_croak (fh, 0);
1572 dREQ;
1573
1574 req->type = EIO_SYNC_FILE_RANGE;
1575 req->sv1 = newSVsv (fh);
1576 req->int1 = fd;
1577 req->offs = offset;
1578 req->size = nbytes;
1579 req->int2 = flags;
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1586 PPCODE:
1587{
1588 int fd = s_fileno_croak (fh, 0);
1589 dREQ;
1590
1591 req->type = EIO_FALLOCATE;
1592 req->sv1 = newSVsv (fh);
1593 req->int1 = fd;
1594 req->int2 = mode;
1595 req->offs = offset;
1596 req->size = len;
1597
1598 REQ_SEND;
1599}
1600
1601void
1602aio_close (SV *fh, SV *callback = &PL_sv_undef)
1603 PPCODE:
1604{
1605 int fd = s_fileno_croak (fh, 0);
1606 dREQ;
1607#if 0
1608 /* partially duplicate logic in s_fileno */
1609 SvGETMAGIC (fh);
1610
1611 if (SvROK (fh))
1612 {
1613 fh = SvRV (fh);
1614 SvGETMAGIC (fh);
1615 }
1616
1617 if (SvTYPE (fh) == SVt_PVGV)
1618 {
1619 /* perl filehandle */
1620 PerlIOUnix_refcnt_inc (fd);
1621 do_close ((GV *)fh, 1);
1622
1623 req->type = EIO_CLOSE;
1624 req->int1 = fd;
1625 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1626 }
1627 else
1628#endif
1629 {
1630 /* fd number */
1631 req->type = EIO_DUP2;
1632 req->int1 = close_fd;
1633 req->sv2 = newSVsv (fh);
1634 req->int2 = fd;
1635 }
1636
1637 REQ_SEND;
1638}
1639
1640void
1641aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1642 PPCODE:
1643{
1644 int fd = s_fileno_croak (fh, 0);
1645 dREQ;
1646
1647 req->type = EIO_SEEK;
1648 req->sv1 = newSVsv (fh);
1649 req->int1 = fd;
1650 req->offs = SvVAL64 (offset);
1651 req->int2 = whence;
1652
1653 REQ_SEND;
1654}
1655
1656void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1657aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1507 ALIAS: 1658 ALIAS:
1508 aio_read = REQ_READ 1659 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1660 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1661 PPCODE:
1512{ 1662{
1513 STRLEN svlen; 1663 STRLEN svlen;
1664 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1665 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1666 UV len = SvUV (length);
1516 1667
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1668 if (dataoffset < 0)
1521 dataoffset += svlen; 1669 dataoffset += svlen;
1522 1670
1523 if (dataoffset < 0 || dataoffset > svlen) 1671 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1672 croak ("dataoffset outside of data scalar");
1525 1673
1526 if (ix == REQ_WRITE) 1674 if (ix == EIO_WRITE)
1527 { 1675 {
1528 /* write: check length and adjust. */ 1676 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1677 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1678 len = svlen - dataoffset;
1531 } 1679 }
1532 else 1680 else
1533 { 1681 {
1534 /* read: grow scalar as necessary */ 1682 /* read: check type and grow scalar as necessary */
1683 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1684 svptr = sv_grow (data, len + dataoffset + 1);
1685 else if (SvCUR (data) < len + dataoffset)
1686 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1687 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1688
1541 { 1689 {
1542 dREQ; 1690 dREQ;
1543 1691
1544 req->type = ix; 1692 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1693 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1694 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1695 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1696 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1697 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1698 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1699 req->stroffset = dataoffset;
1553 1700
1554 if (!SvREADONLY (data)) 1701 if (!SvREADONLY (data))
1555 { 1702 {
1556 SvREADONLY_on (data); 1703 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1707 REQ_SEND;
1561 } 1708 }
1562} 1709}
1563 1710
1564void 1711void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1712aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1566 PROTOTYPE: $$;$ 1713 ALIAS:
1714 aio_ioctl = EIO_IOCTL
1715 aio_fcntl = EIO_FCNTL
1567 PPCODE: 1716 PPCODE:
1568{ 1717{
1569 SV *data; 1718 int fd = s_fileno_croak (fh, 0);
1570 dREQ; 1719 char *svptr;
1571 1720
1572 data = newSV (NAME_MAX); 1721 if (SvPOK (arg) || !SvNIOK (arg))
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK;
1576 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE:
1588{
1589 dREQ;
1590
1591 req->type = REQ_SENDFILE;
1592 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1594 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1596 req->offs = SvVAL64 (in_offset);
1597 req->size = length;
1598
1599 REQ_SEND;
1600}
1601
1602void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE:
1606{
1607 dREQ;
1608
1609 req->type = REQ_READAHEAD;
1610 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1612 req->offs = SvVAL64 (offset);
1613 req->size = length;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS:
1621 aio_stat = REQ_STAT
1622 aio_lstat = REQ_LSTAT
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 { 1722 {
1630 req_destroy (req); 1723 STRLEN svlen;
1631 croak ("out of memory during aio_stat statdata allocation"); 1724 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1632 } 1725#ifdef IOCPARM_LEN
1726 STRLEN need = IOCPARM_LEN (request);
1727#else
1728 STRLEN need = 256;
1729#endif
1633 1730
1634 req->flags |= FLAG_PTR2_FREE; 1731 if (svlen < need)
1635 req->sv1 = newSVsv (fh_or_path); 1732 svptr = SvGROW (arg, need);
1636
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1733 }
1642 else 1734 else
1735 svptr = (char *)SvIV (arg);
1736
1643 { 1737 {
1738 dREQ;
1739
1644 req->type = REQ_FSTAT; 1740 req->type = ix;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1741 req->sv1 = newSVsv (fh);
1742 req->int1 = fd;
1743 req->int2 = (long)request;
1744 req->sv2 = SvREFCNT_inc (arg);
1745 req->ptr2 = svptr;
1746
1747 REQ_SEND;
1646 } 1748 }
1749}
1750
1751void
1752aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1753 ALIAS:
1754 aio_readlink = EIO_READLINK
1755 aio_realpath = EIO_REALPATH
1756 PPCODE:
1757{
1758 dREQ;
1759
1760 req->type = ix;
1761 req_set_path1 (req, pathname);
1647 1762
1648 REQ_SEND; 1763 REQ_SEND;
1649} 1764}
1650 1765
1651void 1766void
1767aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1768 PPCODE:
1769{
1770 int ifd = s_fileno_croak (in_fh , 0);
1771 int ofd = s_fileno_croak (out_fh, 1);
1772 dREQ;
1773
1774 req->type = EIO_SENDFILE;
1775 req->sv1 = newSVsv (out_fh);
1776 req->int1 = ofd;
1777 req->sv2 = newSVsv (in_fh);
1778 req->int2 = ifd;
1779 req->offs = in_offset;
1780 req->size = length;
1781
1782 REQ_SEND;
1783}
1784
1785void
1786aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1787 PPCODE:
1788{
1789 int fd = s_fileno_croak (fh, 0);
1790 dREQ;
1791
1792 req->type = EIO_READAHEAD;
1793 req->sv1 = newSVsv (fh);
1794 req->int1 = fd;
1795 req->offs = offset;
1796 req->size = length;
1797
1798 REQ_SEND;
1799}
1800
1801void
1802aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1803 ALIAS:
1804 aio_stat = EIO_STAT
1805 aio_lstat = EIO_LSTAT
1806 aio_statvfs = EIO_STATVFS
1807 PPCODE:
1808{
1809 dREQ;
1810
1811 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1812
1813 REQ_SEND;
1814}
1815
1816void
1817st_xtime ()
1818 ALIAS:
1819 st_atime = 0x01
1820 st_mtime = 0x02
1821 st_ctime = 0x04
1822 st_btime = 0x08
1823 st_xtime = 0x0f
1824 PPCODE:
1825 EXTEND (SP, 4);
1826 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1827 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1828 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1829 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1830
1831void
1832st_xtimensec ()
1833 ALIAS:
1834 st_atimensec = 0x01
1835 st_mtimensec = 0x02
1836 st_ctimensec = 0x04
1837 st_btimensec = 0x08
1838 st_xtimensec = 0x0f
1839 st_btimesec = 0x10
1840 st_gen = 0x20
1841 PPCODE:
1842 EXTEND (SP, 4);
1843 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1844 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1845 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1846 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1847 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1848 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1849
1850UV
1851major (UV dev)
1852 ALIAS:
1853 minor = 1
1854 CODE:
1855 RETVAL = ix ? minor (dev) : major (dev);
1856 OUTPUT:
1857 RETVAL
1858
1859UV
1860makedev (UV maj, UV min)
1861 CODE:
1862 RETVAL = makedev (maj, min);
1863 OUTPUT:
1864 RETVAL
1865
1866void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1867aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1653 PPCODE: 1868 PPCODE:
1654{ 1869{
1655 dREQ; 1870 dREQ;
1656 1871
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1872 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1873 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1874 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1875
1672 REQ_SEND; 1876 REQ_SEND;
1673} 1877}
1674 1878
1675void 1879void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1880aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1677 PPCODE: 1881 PPCODE:
1678{ 1882{
1679 dREQ; 1883 dREQ;
1680 1884
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1885 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1886 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1887
1695 REQ_SEND; 1888 REQ_SEND;
1696} 1889}
1697 1890
1698void 1891void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1892aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1700 PPCODE: 1893 PPCODE:
1701{ 1894{
1702 dREQ; 1895 dREQ;
1703 1896
1704 req->mode = mode; 1897 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1898 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1899
1718 REQ_SEND; 1900 REQ_SEND;
1719} 1901}
1720 1902
1721void 1903void
1722aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1904aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1723 PPCODE: 1905 PPCODE:
1724{ 1906{
1725 dREQ; 1907 dREQ;
1726 1908
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1909 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1910 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1911 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730
1731 if (SvPOK (fh_or_path))
1732 {
1733 req->type = REQ_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 }
1736 else
1737 {
1738 req->type = REQ_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 }
1741 1912
1742 REQ_SEND; 1913 REQ_SEND;
1743} 1914}
1744 1915
1745void 1916void
1917aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1918 PPCODE:
1919{
1920 dREQ;
1921
1922 req->type = EIO_READDIR;
1923 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1924
1925 if (flags & EIO_READDIR_DENTS)
1926 req->int1 |= EIO_READDIR_CUSTOM2;
1927
1928 req_set_path1 (req, pathname);
1929
1930 REQ_SEND;
1931}
1932
1933void
1934aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1935 PPCODE:
1936{
1937 dREQ;
1938
1939 req->type = EIO_MKDIR;
1940 req->int2 = mode;
1941 req_set_path1 (req, pathname);
1942
1943 REQ_SEND;
1944}
1945
1946void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1947aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1747 ALIAS: 1948 ALIAS:
1748 aio_unlink = REQ_UNLINK 1949 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1950 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1951 aio_readdir = EIO_READDIR
1751 PPCODE: 1952 PPCODE:
1752{ 1953{
1753 dREQ; 1954 dREQ;
1754 1955
1755 req->type = ix; 1956 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1957 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758 1958
1759 REQ_SEND; 1959 REQ_SEND;
1760} 1960}
1761 1961
1762void 1962void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1963aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1778 ALIAS: 1964 ALIAS:
1779 aio_link = REQ_LINK 1965 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1966 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1967 aio_rename = EIO_RENAME
1782 PPCODE: 1968 PPCODE:
1783{ 1969{
1970 eio_wd wd2 = 0;
1784 dREQ; 1971 dREQ;
1785 1972
1786 req->type = ix; 1973 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1974 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1975 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1976 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1977
1792 REQ_SEND; 1978 REQ_SEND;
1793} 1979}
1794 1980
1795void 1981void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1982aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1797 PPCODE: 1983 PPCODE:
1798{ 1984{
1985 eio_wd wd2 = 0;
1799 dREQ; 1986 dREQ;
1800 1987
1801 req->type = REQ_MKNOD; 1988 req->type = EIO_RENAME;
1802 req->sv1 = newSVsv (pathname); 1989 req_set_path1 (req, oldpath);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1990 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1804 req->mode = (mode_t)mode; 1991 req->int2 = flags;
1805 req->offs = dev; 1992 req->int3 = (long)wd2;
1806 1993
1807 REQ_SEND; 1994 REQ_SEND;
1808} 1995}
1809 1996
1810void 1997void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1998aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1812 PPCODE: 1999 PPCODE:
1813{ 2000{
1814 dREQ; 2001 dREQ;
2002
2003 req->type = EIO_MKNOD;
2004 req->int2 = (mode_t)mode;
2005 req->offs = dev;
2006 req_set_path1 (req, pathname);
2007
2008 REQ_SEND;
2009}
1815 2010
2011void
2012aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2013 ALIAS:
2014 aio_mtouch = EIO_MTOUCH
2015 aio_msync = EIO_MSYNC
2016 PPCODE:
2017{
2018 STRLEN svlen;
2019 char *svptr = SvPVbyte (data, svlen);
2020 UV len = SvUV (length);
2021
2022 if (flags < 0)
2023 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2024
2025 if (offset < 0)
2026 offset += svlen;
2027
2028 if (offset < 0 || offset > svlen)
2029 croak ("offset outside of scalar");
2030
2031 if (!SvOK (length) || len + offset > svlen)
2032 len = svlen - offset;
2033
2034 {
2035 dREQ;
2036
2037 req->type = ix;
2038 req->sv2 = SvREFCNT_inc (data);
2039 req->ptr2 = (char *)svptr + offset;
2040 req->size = len;
2041 req->int1 = flags;
2042
2043 REQ_SEND;
2044 }
2045}
2046
2047void
2048aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2049 PPCODE:
2050{
2051 STRLEN svlen;
2052 char *svptr = SvPVbyte (data, svlen);
2053 UV len = SvUV (length);
2054
2055 if (offset < 0)
2056 offset += svlen;
2057
2058 if (offset < 0 || offset > svlen)
2059 croak ("offset outside of scalar");
2060
2061 if (!SvOK (length) || len + offset > svlen)
2062 len = svlen - offset;
2063
2064 {
2065 dREQ;
2066
2067 req->type = EIO_MLOCK;
2068 req->sv2 = SvREFCNT_inc (data);
2069 req->ptr2 = (char *)svptr + offset;
2070 req->size = len;
2071
2072 REQ_SEND;
2073 }
2074}
2075
2076void
2077aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2078 PPCODE:
2079{
2080 dREQ;
2081
2082 req->type = EIO_MLOCKALL;
2083 req->int1 = flags;
2084
2085 REQ_SEND;
2086}
2087
2088void
2089aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2090 PPCODE:
2091{
2092 int fd = s_fileno_croak (fh, 0);
2093 dREQ;
2094
2095 req->type = EIO_CUSTOM;
2096 req->sv1 = newSVsv (fh);
2097 req->int1 = fd;
2098
2099 req->feed = fiemap;
2100#if HAVE_FIEMAP
2101 /* keep our fingers crossed that the next two types are 64 bit */
2102 req->offs = start;
2103 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2104 req->int2 = flags;
2105 req->int3 = SvOK (count) ? SvIV (count) : -1;
2106#endif
2107
2108 REQ_SEND;
2109}
2110
2111void
2112aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2113 PPCODE:
2114{
2115 char *svptr = 0;
2116
2117 sv_clear_foreign (data);
2118
2119 if (length) /* known length, directly read into scalar */
2120 {
2121 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2122 svptr = sv_grow (data, length + 1);
2123 else if (SvCUR (data) < length)
2124 croak ("length outside of scalar, and cannot grow");
2125 else
2126 svptr = SvPVbyte_nolen (data);
2127 }
2128
2129 {
2130 dREQ;
2131
2132 req->type = EIO_SLURP;
2133 req_set_path1 (req, pathname);
2134 req->offs = offset;
2135 req->size = length;
2136 req->sv2 = SvREFCNT_inc (data);
2137 req->ptr2 = svptr;
2138
2139 if (!SvREADONLY (data))
2140 {
2141 SvREADONLY_on (data);
2142 req->flags |= FLAG_SV2_RO_OFF;
2143 }
2144
2145 REQ_SEND;
2146 }
2147}
2148
2149void
2150aio_busy (double delay, SV *callback = &PL_sv_undef)
2151 PPCODE:
2152{
2153 dREQ;
2154
1816 req->type = REQ_BUSY; 2155 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 2156 req->nv1 = delay < 0. ? 0. : delay;
1818 2157
1819 REQ_SEND; 2158 REQ_SEND;
1820} 2159}
1821 2160
1822void 2161void
1823aio_group (SV *callback=&PL_sv_undef) 2162aio_group (SV *callback = &PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 2163 PPCODE:
1826{ 2164{
1827 dREQ; 2165 dREQ;
1828 2166
1829 req->type = REQ_GROUP; 2167 req->type = EIO_GROUP;
1830 2168
2169 PUTBACK;
1831 req_send (req); 2170 req_submit (req);
2171 SPAGAIN;
2172
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2173 XPUSHs (req_sv (req, aio_grp_stash));
1833} 2174}
1834 2175
1835void 2176void
1836aio_nop (SV *callback=&PL_sv_undef) 2177aio_nop (SV *callback = &PL_sv_undef)
2178 ALIAS:
2179 aio_nop = EIO_NOP
2180 aio_sync = EIO_SYNC
1837 PPCODE: 2181 PPCODE:
1838{ 2182{
1839 dREQ; 2183 dREQ;
1840 2184
1841 req->type = REQ_NOP; 2185 req->type = ix;
1842 2186
1843 REQ_SEND; 2187 REQ_SEND;
1844} 2188}
1845 2189
1846int 2190int
1847aioreq_pri (int pri = 0) 2191aioreq_pri (int pri = NO_INIT)
1848 PROTOTYPE: ;$
1849 CODE: 2192 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 2193 RETVAL = next_pri;
1851 if (items > 0) 2194 if (items > 0)
1852 { 2195 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 2196 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 2197 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 2198 next_pri = pri;
1856 } 2199 }
1857 OUTPUT: 2200 OUTPUT:
1858 RETVAL 2201 RETVAL
1859 2202
1860void 2203void
1861aioreq_nice (int nice = 0) 2204aioreq_nice (int nice = 0)
1862 CODE: 2205 CODE:
1863 nice = next_pri - nice; 2206 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 2207 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 2208 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 2209 next_pri = nice;
1867 2210
1868void 2211void
1869flush () 2212flush ()
1870 PROTOTYPE:
1871 CODE: 2213 CODE:
1872 while (nreqs) 2214 while (eio_nreqs ())
1873 { 2215 {
1874 poll_wait (); 2216 poll_wait ();
1875 poll_cb (); 2217 poll_cb ();
1876 } 2218 }
1877 2219
1878int 2220int
1879poll() 2221poll ()
1880 PROTOTYPE:
1881 CODE: 2222 CODE:
1882 poll_wait (); 2223 poll_wait ();
1883 RETVAL = poll_cb (); 2224 RETVAL = poll_cb ();
1884 OUTPUT: 2225 OUTPUT:
1885 RETVAL 2226 RETVAL
1886 2227
1887int 2228int
1888poll_fileno() 2229poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 2230 CODE:
1891 RETVAL = respipe [0]; 2231 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 2232 OUTPUT:
1893 RETVAL 2233 RETVAL
1894 2234
1895int 2235int
1896poll_cb(...) 2236poll_cb (...)
1897 PROTOTYPE: 2237 PROTOTYPE:
1898 CODE: 2238 CODE:
1899 RETVAL = poll_cb (); 2239 RETVAL = poll_cb ();
1900 OUTPUT: 2240 OUTPUT:
1901 RETVAL 2241 RETVAL
1902 2242
1903void 2243void
1904poll_wait() 2244poll_wait ()
2245 CODE:
2246 poll_wait ();
2247
2248int
2249nreqs ()
2250 CODE:
2251 RETVAL = eio_nreqs ();
2252 OUTPUT:
2253 RETVAL
2254
2255int
2256nready ()
2257 CODE:
2258 RETVAL = eio_nready ();
2259 OUTPUT:
2260 RETVAL
2261
2262int
2263npending ()
2264 CODE:
2265 RETVAL = eio_npending ();
2266 OUTPUT:
2267 RETVAL
2268
2269int
2270nthreads ()
2271 CODE:
2272 RETVAL = eio_nthreads ();
2273 OUTPUT:
2274 RETVAL
2275
2276int
2277fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2278 CODE:
2279 RETVAL = posix_fadvise (fh, offset, length, advice);
2280 OUTPUT:
2281 RETVAL
2282
2283IV
2284sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2285 CODE:
2286 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2287 OUTPUT:
2288 RETVAL
2289
2290void
2291mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2292 PPCODE:
2293 sv_clear_foreign (scalar);
2294{
2295 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2296 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2297 if (addr == (void *)-1)
2298 XSRETURN_NO;
2299
2300 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2301
2302 if (!(prot & PROT_WRITE))
2303 SvREADONLY_on (scalar);
2304
2305 XSRETURN_YES;
2306}
2307
2308void
2309munmap (SV *scalar)
2310 CODE:
2311 sv_clear_foreign (scalar);
2312
2313SV *
2314mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2315 CODE:
2316{
2317 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2318 void *new;
2319
2320 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2321 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2322
2323 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2324
2325 RETVAL = &PL_sv_no;
2326
2327 if (new != (void *)-1)
2328 {
2329 RETVAL = new == (void *)mg->mg_ptr
2330 ? newSVpvn ("0 but true", 10)
2331 : &PL_sv_yes;
2332
2333 mg->mg_ptr = (char *)new;
2334 mg->mg_obj = (SV *)new_length;
2335
2336 SvPVX (scalar) = mg->mg_ptr;
2337 SvCUR_set (scalar, new_length);
2338 }
2339}
2340 OUTPUT:
2341 RETVAL
2342
2343int
2344madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2345 ALIAS:
2346 mprotect = 1
2347 CODE:
2348{
2349 STRLEN svlen;
2350 void *addr = SvPVbyte (scalar, svlen);
2351 STRLEN len = SvUV (length);
2352
2353 if (offset < 0)
2354 offset += svlen;
2355
2356 if (offset < 0 || offset > svlen)
2357 croak ("offset outside of scalar");
2358
2359 if (!SvOK (length) || len + offset > svlen)
2360 len = svlen - offset;
2361
2362 addr = (void *)(((intptr_t)addr) + offset);
2363 eio_page_align (&addr, &len);
2364
2365 switch (ix)
2366 {
2367 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2368 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2369 }
2370}
2371 OUTPUT:
2372 RETVAL
2373
2374int
2375munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2376 CODE:
2377{
2378 STRLEN svlen;
2379 void *addr = SvPVbyte (scalar, svlen);
2380 size_t len = SvUV (length);
2381
2382 if (offset < 0)
2383 offset += svlen;
2384
2385 if (offset < 0 || offset > svlen)
2386 croak ("offset outside of scalar");
2387
2388 if (!SvOK (length) || len + offset > svlen)
2389 len = svlen - offset;
2390
2391 addr = (void *)(((intptr_t)addr) + offset);
2392 eio_page_align (&addr, &len);
2393#if _POSIX_MEMLOCK_RANGE
2394 RETVAL = munlock (addr, len);
2395#else
2396 RETVAL = EIO_ENOSYS ();
2397#endif
2398}
2399 OUTPUT:
2400 RETVAL
2401
2402int
2403mlockall (int flags)
2404 PROTOTYPE: $;
2405 CODE:
2406 RETVAL = eio_mlockall_sync (flags);
2407 OUTPUT:
2408 RETVAL
2409
2410int
2411munlockall ()
2412 CODE:
2413#if _POSIX_MEMLOCK
2414 munlockall ();
2415#else
2416 RETVAL = EIO_ENOSYS ();
2417#endif
2418 OUTPUT:
2419 RETVAL
2420
2421int
2422statx (SV8 *pathname, int flags, UV mask)
2423 CODE:
2424{
2425 /* undocumented, and might go away, and anyway, should use eio_statx */
2426 SV *wdsv = 0;
2427 SV *pathsv = 0;
2428 eio_wd wd = EIO_CWD;
2429 void *ptr;
2430 int res;
2431
2432 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2433 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2434
2435 SvREFCNT_dec (pathsv);
2436 SvREFCNT_dec (wdsv);
2437}
2438 OUTPUT:
2439 RETVAL
2440
2441U32
2442stx_mode ()
1905 PROTOTYPE: 2443 PROTOTYPE:
1906 CODE: 2444 CODE:
1907 poll_wait (); 2445#if HAVE_STATX
2446 RETVAL = stx.stx_mode;
2447#else
2448 XSRETURN_UNDEF;
2449#endif
2450 OUTPUT:
2451 RETVAL
1908 2452
2453#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2454#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2455#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2456#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2457#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2458#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2459#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2460#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2461#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2462#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2463#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2464#define STATX_OFFSET_size statx_offsetof (stx_size)
2465#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2466#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2467#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2468#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2469#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2470#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2471
2472U32
2473stx_mask ()
2474 PROTOTYPE:
2475 ALIAS:
2476 stx_mask = STATX_OFFSET_mask
2477 stx_blksize = STATX_OFFSET_blksize
2478 stx_nlink = STATX_OFFSET_nlink
2479 stx_uid = STATX_OFFSET_uid
2480 stx_gid = STATX_OFFSET_gid
2481 stx_rdev_major = STATX_OFFSET_rdev_major
2482 stx_rdev_minor = STATX_OFFSET_rdev_minor
2483 stx_dev_major = STATX_OFFSET_dev_major
2484 stx_dev_minor = STATX_OFFSET_dev_minor
2485 CODE:
2486#if HAVE_STATX
2487 RETVAL = *(__u32 *)((char *)&stx + ix);
2488#else
2489 XSRETURN_UNDEF;
2490#endif
2491 OUTPUT:
2492 RETVAL
2493
2494VAL64
2495stx_attributes ()
2496 PROTOTYPE:
2497 ALIAS:
2498 stx_attributes = STATX_OFFSET_attributes
2499 stx_ino = STATX_OFFSET_ino
2500 stx_size = STATX_OFFSET_size
2501 stx_blocks = STATX_OFFSET_blocks
2502 stx_attributes_mask = STATX_OFFSET_attributes_mask
2503 CODE:
2504#if HAVE_STATX
2505 RETVAL = *(__u64 *)((char *)&stx + ix);
2506#else
2507 XSRETURN_UNDEF;
2508#endif
2509 OUTPUT:
2510 RETVAL
2511
2512NV
2513stx_atime ()
2514 PROTOTYPE:
2515 ALIAS:
2516 stx_atime = STATX_OFFSET_atime
2517 stx_btime = STATX_OFFSET_btime
2518 stx_ctime = STATX_OFFSET_ctime
2519 stx_mtime = STATX_OFFSET_mtime
2520 CODE:
2521#if HAVE_STATX
2522 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2523 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2524#else
2525 XSRETURN_UNDEF;
2526#endif
2527 OUTPUT:
2528 RETVAL
2529
2530VAL64
2531stx_atimesec ()
2532 PROTOTYPE:
2533 ALIAS:
2534 stx_atimesec = STATX_OFFSET_atime
2535 stx_btimesec = STATX_OFFSET_btime
2536 stx_ctimesec = STATX_OFFSET_ctime
2537 stx_mtimesec = STATX_OFFSET_mtime
2538 CODE:
2539#if HAVE_STATX
2540 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2541 RETVAL = ts->tv_sec;
2542#else
2543 XSRETURN_UNDEF;
2544#endif
2545 OUTPUT:
2546 RETVAL
2547
2548U32
2549stx_atimensec ()
2550 PROTOTYPE:
2551 ALIAS:
2552 stx_atimensec = STATX_OFFSET_atime
2553 stx_btimensec = STATX_OFFSET_btime
2554 stx_ctimensec = STATX_OFFSET_ctime
2555 stx_mtimensec = STATX_OFFSET_mtime
2556 CODE:
2557#if HAVE_STATX
2558 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2559 RETVAL = ts->tv_nsec;
2560#else
2561 RETVAL = 0;
2562#endif
2563 OUTPUT:
2564 RETVAL
2565
1909void 2566void
1910setsig (int signum = SIGIO) 2567accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2568 PPCODE:
2569{
2570 SV *retval;
2571#if HAVE_ACCEPT4
2572 socklen_t salen_ = salen ? salen + 1 : 0;
2573
2574 if (salen)
2575 {
2576 sv_upgrade (sockaddr, SVt_PV);
2577 sv_grow (sockaddr, salen_);
2578 }
2579
2580 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2581
2582 retval = newmortalFH (res, O_RDWR);
2583
2584 if (res >= 0 && salen > 0)
2585 {
2586 if (salen_ > salen + 1)
2587 salen_ = salen + 1;
2588
2589 SvPOK_only (sockaddr);
2590 SvCUR_set (sockaddr, salen_);
2591 }
2592#else
2593 errno = ENOSYS;
2594 retval = &PL_sv_undef;
2595#endif
2596 XPUSHs (retval);
2597}
2598
2599ssize_t
2600splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2601 CODE:
2602{
2603#if HAVE_LINUX_SPLICE
2604 loff_t off_in_, off_out_;
2605 RETVAL = splice (
2606 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2607 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2608 length, flags
2609 );
2610#else
2611 RETVAL = EIO_ENOSYS ();
2612#endif
2613}
2614 OUTPUT:
2615 RETVAL
2616
2617ssize_t
2618tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2619 CODE:
2620#if HAVE_LINUX_SPLICE
2621 RETVAL = tee (rfh, wfh, length, flags);
2622#else
2623 RETVAL = EIO_ENOSYS ();
2624#endif
2625 OUTPUT:
2626 RETVAL
2627
2628int
2629pipesize (aio_rfd rfh, int new_size = -1)
2630 PROTOTYPE: $;$
2631 CODE:
2632#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2633 if (new_size >= 0)
2634 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2635 else
2636 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2637#else
2638 errno = ENOSYS;
2639 RETVAL = -1;
2640#endif
2641 OUTPUT:
2642 RETVAL
2643
2644void
2645pipe2 (int flags = 0)
1911 PROTOTYPE: ;$ 2646 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE: 2647 PPCODE:
1930{ 2648{
1931 int count; 2649 int fd[2];
2650 int res;
1932 2651
1933 block_sig (); 2652 if (flags)
1934 PUSHMARK (SP); 2653#if HAVE_PIPE2
1935 PUTBACK; 2654 res = pipe2 (fd, flags);
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2655#else
1937 SPAGAIN; 2656 res = (errno = ENOSYS, -1);
1938 unblock_sig (); 2657#endif
2658 else
2659 res = pipe (fd);
1939 2660
1940 if (SvTRUE (ERRSV)) 2661 if (!res)
1941 croak (0); 2662 {
2663 EXTEND (SP, 2);
2664 PUSHs (newmortalFH (fd[0], O_RDONLY));
2665 PUSHs (newmortalFH (fd[1], O_WRONLY));
2666 }
2667}
1942 2668
1943 XSRETURN (count); 2669void
2670pidfd_open (int pid, unsigned int flags = 0)
2671 PPCODE:
2672{
2673 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2674 int fd = syscall (SYS_pidfd_open, pid, flags);
2675 XPUSHs (newmortalFH (fd, O_RDWR));
1944} 2676}
1945 2677
1946int 2678int
1947nreqs() 2679pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1948 PROTOTYPE: 2680 PPCODE:
2681{
2682 int res;
2683 siginfo_t si = { 0 };
2684
2685 if (SvOK (siginfo))
2686 {
2687 HV *hv;
2688 SV **svp;
2689
2690 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2691 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2692
2693 hv = (HV *)SvRV (siginfo);
2694
2695 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2696 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2697 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2698 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2699 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2700 }
2701
2702 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2703 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2704
2705 XPUSHs (sv_2mortal (newSViv (res)));
2706}
2707
2708void
2709pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2710 PPCODE:
2711{
2712 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2713 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2714 XPUSHs (newmortalFH (fd, O_RDWR));
2715}
2716
2717void
2718eventfd (unsigned int initval = 0, int flags = 0)
2719 PPCODE:
2720{
2721 int fd;
2722#if HAVE_EVENTFD
2723 fd = eventfd (initval, flags);
2724#else
2725 fd = (errno = ENOSYS, -1);
2726#endif
2727
2728 XPUSHs (newmortalFH (fd, O_RDWR));
2729}
2730
2731void
2732timerfd_create (int clockid, int flags = 0)
2733 PPCODE:
2734{
2735 int fd;
2736#if HAVE_TIMERFD
2737 fd = timerfd_create (clockid, flags);
2738#else
2739 fd = (errno = ENOSYS, -1);
2740#endif
2741
2742 XPUSHs (newmortalFH (fd, O_RDWR));
2743}
2744
2745void
2746timerfd_settime (SV *fh, int flags, NV interval, NV value)
2747 PPCODE:
2748{
2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2751 int res;
2752 struct itimerspec its, ots;
2753
2754 ts_set (&its.it_interval, interval);
2755 ts_set (&its.it_value , value);
2756 res = timerfd_settime (fd, flags, &its, &ots);
2757
2758 if (!res)
2759 {
2760 EXTEND (SP, 2);
2761 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2762 PUSHs (newSVnv (ts_get (&ots.it_value)));
2763 }
2764#else
2765 errno = ENOSYS;
2766#endif
2767}
2768
2769void
2770timerfd_gettime (SV *fh)
2771 PPCODE:
2772{
2773 int fd = s_fileno_croak (fh, 0);
2774#if HAVE_TIMERFD
2775 int res;
2776 struct itimerspec ots;
2777 res = timerfd_gettime (fd, &ots);
2778
2779 if (!res)
2780 {
2781 EXTEND (SP, 2);
2782 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2783 PUSHs (newSVnv (ts_get (&ots.it_value)));
2784 }
2785#else
2786 errno = ENOSYS;
2787#endif
2788}
2789
2790void
2791memfd_create (SV8 *pathname, int flags = 0)
2792 PPCODE:
2793{
2794 int fd;
2795#if HAVE_MEMFD_CREATE
2796 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2797#else
2798 fd = (errno = ENOSYS, -1);
2799#endif
2800
2801 XPUSHs (newmortalFH (fd, O_RDWR));
2802}
2803
2804UV
2805get_fdlimit ()
1949 CODE: 2806 CODE:
1950 RETVAL = nreqs; 2807#if HAVE_RLIMITS
2808 struct rlimit rl;
2809 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2810 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2811#endif
2812 XSRETURN_UNDEF;
1951 OUTPUT: 2813 OUTPUT:
1952 RETVAL 2814 RETVAL
1953 2815
1954int 2816void
1955nready() 2817min_fdlimit (UV limit = 0x7fffffffU)
1956 PROTOTYPE:
1957 CODE: 2818 CODE:
1958 RETVAL = get_nready (); 2819{
1959 OUTPUT: 2820#if HAVE_RLIMITS
1960 RETVAL 2821 struct rlimit rl;
2822 rlim_t orig_rlim_max;
2823 UV bit;
1961 2824
1962int 2825 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1963npending() 2826 goto fail;
1964 PROTOTYPE: 2827
2828 if (rl.rlim_cur == RLIM_INFINITY)
2829 XSRETURN_YES;
2830
2831 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2832
2833 if (rl.rlim_cur < limit)
2834 {
2835 rl.rlim_cur = limit;
2836
2837 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2838 rl.rlim_max = rl.rlim_cur;
2839 }
2840
2841 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2842 XSRETURN_YES;
2843
2844 if (errno == EPERM)
2845 {
2846 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2847 /* our limit overflows a system-wide limit */
2848 /* try an adaptive algorithm, but do not lower the hardlimit */
2849 rl.rlim_max = 0;
2850 for (bit = 0x40000000U; bit; bit >>= 1)
2851 {
2852 rl.rlim_max |= bit;
2853 rl.rlim_cur = rl.rlim_max;
2854
2855 /* never decrease the hard limit */
2856 if (rl.rlim_max < orig_rlim_max)
2857 break;
2858
2859 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2860 rl.rlim_max &= ~bit; /* too high, remove bit again */
2861 }
2862
2863 /* now, raise the soft limit to the max permitted */
2864 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2865 {
2866 rl.rlim_cur = rl.rlim_max;
2867 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2868 errno = EPERM;
2869 }
2870 }
2871#endif
2872 fail:
2873 XSRETURN_UNDEF;
2874}
2875
2876void _on_next_submit (SV *cb)
1965 CODE: 2877 CODE:
1966 RETVAL = get_npending (); 2878 SvREFCNT_dec (on_next_submit);
1967 OUTPUT: 2879 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1968 RETVAL
1969 2880
1970int 2881PROTOTYPES: DISABLE
1971nthreads() 2882
1972 PROTOTYPE: 2883MODULE = IO::AIO PACKAGE = IO::AIO::WD
2884
2885BOOT:
2886{
2887 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2888 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2889}
2890
2891void
2892DESTROY (SV *self)
1973 CODE: 2893 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2894{
1975 RETVAL = started; 2895 aio_wd wd = SvAIO_WD (self);
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 2896#if HAVE_AT
1977 OUTPUT: 2897 {
1978 RETVAL 2898 SV *callback = &PL_sv_undef;
1979 2899 dREQ; /* clobbers next_pri :/ */
1980PROTOTYPES: DISABLE 2900 next_pri = req->pri; /* restore next_pri */
2901 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2902 req->type = EIO_WD_CLOSE;
2903 req->wd = wd;
2904 REQ_SEND;
2905 }
2906#else
2907 eio_wd_close_sync (wd);
2908#endif
2909}
1981 2910
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2911MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 2912
1984void 2913void
1985cancel (aio_req_ornot req) 2914cancel (aio_req_ornot req)
1986 CODE: 2915 CODE:
1987 req_cancel (req); 2916 eio_cancel (req);
1988 2917
1989void 2918void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2919cb (aio_req_ornot req, SV *callback = NO_INIT)
1991 CODE: 2920 PPCODE:
2921{
2922 if (GIMME_V != G_VOID)
2923 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2924
2925 if (items > 1)
2926 {
2927 SV *cb_cv = get_cb (callback);
2928
1992 SvREFCNT_dec (req->callback); 2929 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 2930 req->callback = SvREFCNT_inc (cb_cv);
2931 }
2932}
1994 2933
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2934MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 2935
1997void 2936void
1998add (aio_req grp, ...) 2937add (aio_req grp, ...)
1999 PPCODE: 2938 PPCODE:
2000{ 2939{
2001 int i; 2940 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 2941
2007 if (grp->int1 == 2) 2942 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2943 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 2944
2010 for (i = 1; i < items; ++i ) 2945 for (i = 1; i < items; ++i )
2011 { 2946 {
2947 aio_req req;
2948
2012 if (GIMME_V != G_VOID) 2949 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2950 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 2951
2015 req = SvAIO_REQ (ST (i)); 2952 req = SvAIO_REQ (ST (i));
2016 2953
2017 if (req) 2954 if (req)
2018 { 2955 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 2956 }
2031} 2957}
2032 2958
2033void 2959void
2034cancel_subs (aio_req_ornot req) 2960cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 2969 AV *av;
2044 2970
2045 grp->errorno = errno; 2971 grp->errorno = errno;
2046 2972
2047 av = newAV (); 2973 av = newAV ();
2974 av_extend (av, items - 1);
2048 2975
2049 for (i = 1; i < items; ++i ) 2976 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 2977 av_push (av, newSVsv (ST (i)));
2051 2978
2052 SvREFCNT_dec (grp->sv1); 2979 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 2986 grp->errorno = errorno;
2060 2987
2061void 2988void
2062limit (aio_req grp, int limit) 2989limit (aio_req grp, int limit)
2063 CODE: 2990 CODE:
2064 grp->int2 = limit; 2991 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 2992
2067void 2993void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 2994feed (aio_req grp, SV *callback = &PL_sv_undef)
2069 CODE: 2995 CODE:
2070{ 2996{
2071 SvREFCNT_dec (grp->sv2); 2997 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 2998 grp->sv2 = newSVsv (callback);
2999 grp->feed = aio_grp_feed;
2073 3000
2074 if (grp->int2 <= 0) 3001 if (grp->int2 <= 0)
2075 grp->int2 = 2; 3002 grp->int2 = 2;
2076 3003
2077 aio_grp_feed (grp); 3004 eio_grp_limit (grp, grp->int2);
2078} 3005}
2079 3006

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