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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.108 by root, Thu Oct 4 12:50:35 2007 UTC vs.
Revision 1.291 by root, Tue Jul 27 07:58:35 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
102static HV *stash; 243/*****************************************************************************/
103 244
104#define dBUF \ 245#if !_POSIX_MAPPED_FILES
105 char *aio_buf; \ 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
106 X_LOCK (wrklock); \ 247# define munmap(addr,length) EIO_ENOSYS ()
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 248#endif
108 X_UNLOCK (wrklock); \ 249
109 if (!aio_buf) \ 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
110 return -1; 278 return 0;
279}
111 280
112typedef SV SV8; /* byte-sv, used for argument-checking */ 281static MGVTBL mmap_vtbl = {
113 282 0, 0, 0, 0, mmap_free
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 283};
131 284
132#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 287{
137 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
138 290
139 SV *callback; 291 SvREADONLY_off (sv);
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146 292
147 STRLEN stroffset; 293 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 295
153 unsigned char flags; 296 SvCUR_set (sv, 0);
154 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
155 299
156 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
158} aio_cb;
159 302
160enum { 303static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 304 0, 0, 0, 0, sysfree_free
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164}; 305};
165 306
166typedef aio_cb *aio_req; 307/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 308
169enum { 309/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 310ecb_noinline
171 PRI_MAX = 4, 311static void
172 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{ 313{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 314 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 315
190static thread_t main_tid; 316 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 318 ->mg_obj = (SV *)length;
193 319
194void block_sig () 320 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 321
198 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)
199 return; 368 return;
200 369
201 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)
202 return; 378 return;
203 379
204 sigemptyset (&ss); 380 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 381 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 383 goto done;
208 384
209void unblock_sig () 385 /* else we have to loop -
210{ 386 * it would be tempting (actually I tried that first) to just query the
211 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 */
212 391
213 if (--block_sig_level) 392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 393
216 if (!main_sig) 394 for (;;)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 { 395 {
249 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) */
250 wrk->dirp = 0; 397 char scratch[3072];
251 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
252 399
253 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
257 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 405
260static void worker_free (worker *wrk) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 407 return;
355 408
356 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
357 411
358 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
361
362 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 421 {
364 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 423
367 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
368 } 432 }
369 } 433 }
370 434
371 abort (); 435done:
372} 436 req->result = 0;
373 437
374static int poll_cb (); 438#else
375static 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
376static void req_destroy (aio_req req); 470static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
378 472
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
379/* must be called at most once */ 487/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
381{ 491{
382 if (!req->self) 492 if (!req->self)
383 { 493 {
384 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 496 }
387 497
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 499}
390 500
391static 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)
392{ 510{
393 MAGIC *mg; 511 MAGIC *mg;
394 512
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
397 519
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 521
400 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
401} 523}
402 524
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
403static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
404{ 563{
405 block_sig (); 564 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 565 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 566 dSP;
414 567
415 ENTER; 568 ENTER;
416 SAVETMPS; 569 SAVETMPS;
417 PUSHMARK (SP); 570 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 572 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 574 SPAGAIN;
422 FREETMPS; 575 FREETMPS;
423 LEAVE; 576 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 577 }
434
435 unblock_sig ();
436} 578}
437 579
438static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
439{ 583{
440 --grp->size; 584 eio_submit (req);
441 585
442 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 587 {
448 block_sig (); 588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
449 590
450 if (!req_invoke (grp)) 591 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 592
457 req_destroy (grp); 593 PUSHMARK (SP);
458 unblock_sig (); 594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
459 } 596 }
460} 597}
461 598
599static int
462static int req_invoke (aio_req req) 600req_invoke (eio_req *req)
463{ 601{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 602 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 603 SvREADONLY_off (req->sv2);
468 604
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 605 if (!EIO_CANCELLED (req) && req->callback)
470 { 606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
471 ENTER; 611 ENTER;
472 SAVETMPS; 612 SAVETMPS;
473 PUSHMARK (SP); 613 PUSHMARK (SP);
474 EXTEND (SP, 1); 614 EXTEND (SP, 1);
475 615
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
476 switch (req->type) 629 switch (req->type)
477 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
478 case REQ_READDIR: 635 case EIO_READDIR:
479 { 636 {
480 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
481 638
482 if (req->result >= 0) 639 if (req->result >= 0)
483 { 640 {
484 int i; 641 int i;
485 char *buf = req->ptr2; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 644 AV *av = newAV ();
487 645
488 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
489 647
490 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
491 { 649 {
492 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 653
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
494 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);
495 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
496 } 684 }
497 685
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 687 }
500 688
501 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))));
502 } 693 }
503 break; 694 break;
504 695
505 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:
506 { 702 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 703 SV *rv = &PL_sv_undef;
509 704
705#ifndef _WIN32
510 if (req->result >= 0) 706 if (req->result >= 0)
511 { 707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 709 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 711 * chooses to make it a struct.
515 int symlen;
516 712 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 713 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 715
520 symlen = snprintf ( 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result
526 );
527 717
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 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);
530 } 729 }
730#endif
531 731
532 XPUSHs (fh); 732 PUSHs (rv);
533 } 733 }
734
534 break; 735 break;
535 736
536 case REQ_GROUP: 737 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
538 739
539 if (req->sv1) 740 if (req->sv1)
540 { 741 {
541 int i; 742 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
547 } 748 }
548 break; 749 break;
549 750
550 case REQ_NOP: 751 case EIO_NOP:
551 case REQ_BUSY: 752 case EIO_BUSY:
552 break; 753 break;
553 754
554 case REQ_READLINK: 755 case EIO_READLINK:
756 case EIO_REALPATH:
555 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)
556 { 813 {
557 SvCUR_set (req->sv2, req->result); 814#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 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
560 } 846 }
847 else
848 PUSHs (sv_result);
561 break; 849 break;
562 850
563 case REQ_STAT: 851#if 0
564 case REQ_LSTAT: 852 case EIO_CLOSE:
565 case REQ_FSTAT: 853 PerlIOUnix_refcnt_dec (req->int1);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break; 854 break;
855#endif
571 856
572 case REQ_READ: 857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 858 if (req->result > 0)
574 *SvEND (req->sv2) = 0; 859 SvIV_set (sv_result, 0);
575 PUSHs (sv_2mortal (newSViv (req->result))); 860 /* FALLTHROUGH */
576 break;
577 861
578 default: 862 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
580 break; 864 break;
581 } 865 }
582 866
583 errno = req->errorno; 867 errno = req->errorno;
584 868
585 PUTBACK; 869 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 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;
588 877
589 FREETMPS; 878 FREETMPS;
590 LEAVE; 879 LEAVE;
880
881 PUTBACK;
591 } 882 }
592 883
593 if (req->grp)
594 {
595 aio_req grp = req->grp;
596
597 /* unlink request */
598 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
599 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
600
601 if (grp->grp_first == req)
602 grp->grp_first = req->grp_next;
603
604 aio_grp_dec (grp);
605 }
606
607 return !SvTRUE (ERRSV); 884 return !!SvTRUE (ERRSV);
608} 885}
609 886
887static void
610static void req_destroy (aio_req req) 888req_destroy (aio_req req)
611{ 889{
612 if (req->self) 890 if (req->self)
613 { 891 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
616 } 894 }
617 895
618 SvREFCNT_dec (req->sv1); 896 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
621 901
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 902 free (req);
626} 903}
627 904
905static void
628static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
629{ 907{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
633 return; 909 return;
634 910
635 SvREFCNT_dec (grp->sv2); 911 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 912 grp->sv2 = 0;
637 913
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 915}
641 916
642static void req_cancel (aio_req req) 917ecb_cold
643{
644 req->flags |= FLAG_CANCELLED;
645
646 req_cancel_subs (req);
647}
648
649#ifdef USE_SOCKETS_AS_HANDLES
650# define TO_SOCKET(x) (win32_get_osfhandle (x))
651#else
652# define TO_SOCKET(x) (x)
653#endif
654
655static void 918static void
656create_respipe () 919create_respipe (void)
657{ 920{
658 int old_readfd = respipe [0];
659
660 if (respipe [1] >= 0)
661 respipe_close (TO_SOCKET (respipe [1]));
662
663#ifdef _WIN32
664 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
665#else
666 if (pipe (respipe)) 921 if (s_epipe_renew (&respipe))
667#endif
668 croak ("unable to initialize result pipe"); 922 croak ("IO::AIO: unable to initialize result pipe");
669
670 if (old_readfd >= 0)
671 {
672 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
673 croak ("unable to initialize result pipe(2)");
674
675 respipe_close (respipe [0]);
676 respipe [0] = old_readfd;
677 }
678
679#ifdef _WIN32
680 int arg = 1;
681 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
682 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
683#else
684 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
685 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
686#endif
687 croak ("unable to initialize result pipe(3)");
688
689 respipe_osf [0] = TO_SOCKET (respipe [0]);
690 respipe_osf [1] = TO_SOCKET (respipe [1]);
691} 923}
692 924
693X_THREAD_PROC (aio_proc); 925static void
694 926poll_wait (void)
695static void start_thread (void)
696{ 927{
697 worker *wrk = calloc (1, sizeof (worker));
698
699 if (!wrk)
700 croak ("unable to allocate worker thread data");
701
702 X_LOCK (wrklock);
703
704 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
705 {
706 wrk->prev = &wrk_first;
707 wrk->next = wrk_first.next;
708 wrk_first.next->prev = wrk;
709 wrk_first.next = wrk;
710 ++started;
711 }
712 else
713 free (wrk);
714
715 X_UNLOCK (wrklock);
716}
717
718static void maybe_start_thread ()
719{
720 if (get_nthreads () >= wanted)
721 return;
722
723 /* todo: maybe use idle here, but might be less exact */
724 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
725 return;
726
727 start_thread ();
728}
729
730static void req_send (aio_req req)
731{
732 block_sig ();
733
734 ++nreqs;
735
736 X_LOCK (reqlock);
737 ++nready;
738 reqq_push (&req_queue, req);
739 X_COND_SIGNAL (reqwait);
740 X_UNLOCK (reqlock);
741
742 unblock_sig ();
743
744 maybe_start_thread ();
745}
746
747static void end_thread (void)
748{
749 aio_req req;
750
751 Newz (0, req, 1, aio_cb);
752
753 req->type = REQ_QUIT;
754 req->pri = PRI_MAX + PRI_BIAS;
755
756 X_LOCK (reqlock);
757 reqq_push (&req_queue, req);
758 X_COND_SIGNAL (reqwait);
759 X_UNLOCK (reqlock);
760
761 X_LOCK (wrklock);
762 --started;
763 X_UNLOCK (wrklock);
764}
765
766static void set_max_idle (int nthreads)
767{
768 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
769 max_idle = nthreads <= 0 ? 1 : nthreads;
770 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
771}
772
773static void min_parallel (int nthreads)
774{
775 if (wanted < nthreads)
776 wanted = nthreads;
777}
778
779static void max_parallel (int nthreads)
780{
781 if (wanted > nthreads)
782 wanted = nthreads;
783
784 while (started > wanted)
785 end_thread ();
786}
787
788static void poll_wait ()
789{
790 fd_set rfd;
791
792 while (nreqs) 928 while (eio_nreqs ())
793 { 929 {
794 int size; 930 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 931
932 X_LOCK (EIO_POOL->reslock);
796 size = res_queue.size; 933 size = EIO_POOL->res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 934 X_UNLOCK (EIO_POOL->reslock);
798 935
799 if (size) 936 if (size)
800 return; 937 return;
801 938
802 maybe_start_thread (); 939 etp_maybe_start_thread (EIO_POOL);
803 940
804 FD_ZERO (&rfd); 941 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 942 }
809} 943}
810 944
811static int poll_cb () 945static int
946poll_cb (void)
812{ 947{
813 dSP;
814 int count = 0;
815 int maxreqs = max_poll_reqs;
816 int do_croak = 0;
817 struct timeval tv_start, tv_now;
818 aio_req req;
819
820 if (max_poll_time)
821 gettimeofday (&tv_start, 0);
822
823 block_sig ();
824
825 for (;;) 948 for (;;)
826 { 949 {
827 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)
828 { 1024 {
829 maybe_start_thread (); 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
830 1027
831 X_LOCK (reslock); 1028 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 1029 {
836 --npending; 1030 *wd = SvAIO_WD (wdob);
837 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 if (!res_queue.size)
839 {
840 /* read any signals sent by the worker threads */
841 char buf [4];
842 while (respipe_read (respipe [0], buf, 4) == 4)
843 ;
844 }
845 }
846
847 X_UNLOCK (reslock);
848
849 if (!req)
850 break;
851
852 --nreqs;
853
854 if (req->type == REQ_GROUP && req->size)
855 {
856 req->int1 = 1; /* mark request as delayed */
857 continue;
858 } 1032 }
859 else 1033 else
860 { 1034 *wd = EIO_INVALID_WD;
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0);
866 }
867
868 count++;
869 }
870
871 req_destroy (req);
872
873 if (maxreqs && !--maxreqs)
874 break;
875
876 if (max_poll_time)
877 {
878 gettimeofday (&tv_now, 0);
879
880 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
881 break;
882 }
883 } 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 }
884 1046
885 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)));
886 break; 1072 break;
887 1073
888 poll_wait (); 1074 default:
889 1075 req->type = type_path;
890 ++maxreqs; 1076 req_set_path1 (req, fh_or_path);
1077 break;
891 } 1078 }
892
893 unblock_sig ();
894 return count;
895} 1079}
896 1080
897/*****************************************************************************/ 1081/*****************************************************************************/
898/* work around various missing functions */
899 1082
900#if !HAVE_PREADWRITE 1083static void
901# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
902# define pwrite aio_pwrite
903
904/*
905 * make our pread/pwrite safe against themselves, but not against
906 * normal read/write by using a mutex. slows down execution a lot,
907 * but that's your problem, not mine.
908 */
909static mutex_t preadwritelock = X_MUTEX_INIT;
910
911static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
912{ 1085{
913 ssize_t res; 1086 ts->tv_sec = value;
914 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
915
916 X_LOCK (preadwritelock);
917 ooffset = lseek (fd, 0, SEEK_CUR);
918 lseek (fd, offset, SEEK_SET);
919 res = read (fd, buf, count);
920 lseek (fd, ooffset, SEEK_SET);
921 X_UNLOCK (preadwritelock);
922
923 return res;
924} 1088}
925 1089
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
927{ 1092{
928 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
929 off_t ooffset;
930
931 X_LOCK (preadwritelock);
932 ooffset = lseek (fd, 0, SEEK_CUR);
933 lseek (fd, offset, SEEK_SET);
934 res = write (fd, buf, count);
935 lseek (fd, offset, SEEK_SET);
936 X_UNLOCK (preadwritelock);
937
938 return res;
939} 1094}
940#endif
941 1095
942#ifndef HAVE_FUTIMES 1096/*****************************************************************************/
943 1097
944# define utimes(path,times) aio_utimes (path, times) 1098XS(boot_IO__AIO) ecb_cold;
945# define futimes(fd,times) aio_futimes (fd, times)
946 1099
947int aio_utimes (const char *filename, const struct timeval times[2]) 1100MODULE = IO::AIO PACKAGE = IO::AIO
948{
949 if (times)
950 {
951 struct utimbuf buf;
952 1101
953 buf.actime = times[0].tv_sec; 1102PROTOTYPES: ENABLE
954 buf.modtime = times[1].tv_sec;
955 1103
956 return utime (filename, &buf); 1104BOOT:
957 }
958 else
959 return utime (filename, 0);
960}
961
962int aio_futimes (int fd, const struct timeval tv[2])
963{ 1105{
964 errno = ENOSYS; 1106 static const struct {
965 return -1; 1107 const char *name;
966} 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 },
967 1113
968#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)
969 1119
970#if !HAVE_FDATASYNC 1120 /* for lseek */
971# define fdatasync fsync 1121 const_iv (SEEK_DATA)
972#endif 1122 const_iv (SEEK_HOLE)
973 1123
974#if !HAVE_READAHEAD 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
975# 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)
976 1130
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
978{ 1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
979 size_t todo = count; 1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
980 dBUF; 1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
981 1136
982 while (todo > 0) 1137 /* the second block will be 0 when missing */
983 { 1138 const_iv (O_ACCMODE)
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985 1139
986 pread (fd, aio_buf, len, offset); 1140 const_iv (O_RDONLY)
987 offset += len; 1141 const_iv (O_WRONLY)
988 todo -= len; 1142 const_iv (O_RDWR)
989 } 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
990 1147
991 errno = 0; 1148 const_iv (O_ASYNC)
992 return count; 1149 const_iv (O_DIRECT)
993} 1150 const_iv (O_NOATIME)
994 1151
995#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)
996 1165
997#if !HAVE_READDIR_R 1166 const_iv (S_IFIFO)
998# 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)
999 1175
1000static mutex_t readdirlock = X_MUTEX_INIT; 1176 const_iv (ST_RDONLY)
1001 1177 const_iv (ST_NOSUID)
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 1178 const_iv (ST_NODEV)
1003{ 1179 const_iv (ST_NOEXEC)
1004 X_DIRENT *e; 1180 const_iv (ST_SYNCHRONOUS)
1005 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)
1006 1188
1007 X_LOCK (readdirlock); 1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
1008 1193
1009 e = readdir (dirp); 1194 const_iv (MAP_PRIVATE)
1010 errorno = errno; 1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
1011 1198
1012 if (e) 1199 /* linuxish */
1013 { 1200 const_iv (MAP_LOCKED)
1014 *res = ent; 1201 const_iv (MAP_NORESERVE)
1015 strcpy (ent->d_name, e->d_name); 1202 const_iv (MAP_POPULATE)
1016 } 1203 const_iv (MAP_NONBLOCK)
1017 else 1204 const_iv (MAP_GROWSDOWN)
1018 *res = 0; 1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
1019 1212
1020 X_UNLOCK (readdirlock); 1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
1021 1215
1022 errno = errorno; 1216 const_iv (MSG_CMSG_CLOEXEC)
1023 return e ? 0 : -1; 1217 const_iv (SOCK_CLOEXEC)
1024}
1025#endif
1026 1218
1027/* sendfile always needs emulation */ 1219 const_iv (F_DUPFD_CLOEXEC)
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1029{
1030 ssize_t res;
1031 1220
1032 if (!count) 1221 const_iv (F_ADD_SEALS)
1033 return 0; 1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
1034 1227
1035#if HAVE_SENDFILE 1228 const_iv (F_OFD_GETLK)
1036# if __linux 1229 const_iv (F_OFD_SETLK)
1037 res = sendfile (ofd, ifd, &offset, count); 1230 const_iv (F_OFD_GETLKW)
1038 1231
1039# elif __freebsd 1232 const_iv (FIFREEZE)
1040 /* 1233 const_iv (FITHAW)
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts 1234 const_iv (FITRIM)
1042 * wasted on making it similar to other I/O functions. 1235 const_iv (FICLONE)
1043 */ 1236 const_iv (FICLONERANGE)
1237 const_iv (FIDEDUPERANGE)
1238
1239 const_iv (FS_IOC_GETFLAGS)
1240 const_iv (FS_IOC_SETFLAGS)
1241 const_iv (FS_IOC_GETVERSION)
1242 const_iv (FS_IOC_SETVERSION)
1243 const_iv (FS_IOC_FIEMAP)
1244 const_iv (FS_IOC_FSGETXATTR)
1245 const_iv (FS_IOC_FSSETXATTR)
1246 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1247 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1248 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1249
1250 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1251
1252 const_iv (FS_SECRM_FL)
1253 const_iv (FS_UNRM_FL)
1254 const_iv (FS_COMPR_FL)
1255 const_iv (FS_SYNC_FL)
1256 const_iv (FS_IMMUTABLE_FL)
1257 const_iv (FS_APPEND_FL)
1258 const_iv (FS_NODUMP_FL)
1259 const_iv (FS_NOATIME_FL)
1260 const_iv (FS_DIRTY_FL)
1261 const_iv (FS_COMPRBLK_FL)
1262 const_iv (FS_NOCOMP_FL)
1263 const_iv (FS_ENCRYPT_FL)
1264 const_iv (FS_BTREE_FL)
1265 const_iv (FS_INDEX_FL)
1266 const_iv (FS_JOURNAL_DATA_FL)
1267 const_iv (FS_NOTAIL_FL)
1268 const_iv (FS_DIRSYNC_FL)
1269 const_iv (FS_TOPDIR_FL)
1270 const_iv (FS_FL_USER_MODIFIABLE)
1271
1272 const_iv (FS_XFLAG_REALTIME)
1273 const_iv (FS_XFLAG_PREALLOC)
1274 const_iv (FS_XFLAG_IMMUTABLE)
1275 const_iv (FS_XFLAG_APPEND)
1276 const_iv (FS_XFLAG_SYNC)
1277 const_iv (FS_XFLAG_NOATIME)
1278 const_iv (FS_XFLAG_NODUMP)
1279 const_iv (FS_XFLAG_RTINHERIT)
1280 const_iv (FS_XFLAG_PROJINHERIT)
1281 const_iv (FS_XFLAG_NOSYMLINKS)
1282 const_iv (FS_XFLAG_EXTSIZE)
1283 const_iv (FS_XFLAG_EXTSZINHERIT)
1284 const_iv (FS_XFLAG_NODEFRAG)
1285 const_iv (FS_XFLAG_FILESTREAM)
1286 const_iv (FS_XFLAG_DAX)
1287 const_iv (FS_XFLAG_HASATTR)
1288
1289 const_iv (FIEMAP_FLAG_SYNC)
1290 const_iv (FIEMAP_FLAG_XATTR)
1291 const_iv (FIEMAP_FLAGS_COMPAT)
1292 const_iv (FIEMAP_EXTENT_LAST)
1293 const_iv (FIEMAP_EXTENT_UNKNOWN)
1294 const_iv (FIEMAP_EXTENT_DELALLOC)
1295 const_iv (FIEMAP_EXTENT_ENCODED)
1296 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1297 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1298 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1299 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1300 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1301 const_iv (FIEMAP_EXTENT_MERGED)
1302 const_iv (FIEMAP_EXTENT_SHARED)
1303
1304 const_iv (SPLICE_F_MOVE)
1305 const_iv (SPLICE_F_NONBLOCK)
1306 const_iv (SPLICE_F_MORE)
1307 const_iv (SPLICE_F_GIFT)
1308
1309 const_iv (EFD_CLOEXEC)
1310 const_iv (EFD_NONBLOCK)
1311 const_iv (EFD_SEMAPHORE)
1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316
1317 const_iv (CLOCK_REALTIME)
1318 const_iv (CLOCK_MONOTONIC)
1319 const_iv (CLOCK_BOOTTIME)
1320 const_iv (CLOCK_REALTIME_ALARM)
1321 const_iv (CLOCK_BOOTTIME_ALARM)
1322
1323 const_iv (TFD_NONBLOCK)
1324 const_iv (TFD_CLOEXEC)
1325
1326 const_iv (TFD_TIMER_ABSTIME)
1327 const_iv (TFD_TIMER_CANCEL_ON_SET)
1328
1329 const_iv (STATX_TYPE)
1330 const_iv (STATX_MODE)
1331 const_iv (STATX_NLINK)
1332 const_iv (STATX_UID)
1333 const_iv (STATX_GID)
1334 const_iv (STATX_ATIME)
1335 const_iv (STATX_MTIME)
1336 const_iv (STATX_CTIME)
1337 const_iv (STATX_INO)
1338 const_iv (STATX_SIZE)
1339 const_iv (STATX_BLOCKS)
1340 const_iv (STATX_BASIC_STATS)
1341 const_iv (STATX_ALL)
1342 const_iv (STATX_BTIME)
1343 const_iv (STATX_ATTR_COMPRESSED)
1344 const_iv (STATX_ATTR_IMMUTABLE)
1345 const_iv (STATX_ATTR_APPEND)
1346 const_iv (STATX_ATTR_NODUMP)
1347 const_iv (STATX_ATTR_ENCRYPTED)
1348 const_iv (STATX_ATTR_AUTOMOUNT)
1349
1350 const_iv (AT_FDCWD)
1351 const_iv (AT_SYMLINK_NOFOLLOW)
1352 const_iv (AT_EACCESS)
1353 const_iv (AT_REMOVEDIR)
1354 const_iv (AT_SYMLINK_FOLLOW)
1355 const_iv (AT_NO_AUTOMOUNT)
1356 const_iv (AT_EMPTY_PATH)
1357 const_iv (AT_STATX_SYNC_TYPE)
1358 const_iv (AT_STATX_AS_STAT)
1359 const_iv (AT_STATX_FORCE_SYNC)
1360 const_iv (AT_STATX_DONT_SYNC)
1361 const_iv (AT_RECURSIVE)
1362
1363 const_iv (OPEN_TREE_CLONE)
1364
1365 const_iv (FSOPEN_CLOEXEC)
1366
1367 const_iv (FSPICK_CLOEXEC)
1368 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1369 const_iv (FSPICK_NO_AUTOMOUNT)
1370 const_iv (FSPICK_EMPTY_PATH)
1371
1372 const_iv (MOVE_MOUNT_F_SYMLINKS)
1373 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1374 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1375 const_iv (MOVE_MOUNT_T_SYMLINKS)
1376 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1377 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1378
1379 /* waitid */
1380 const_iv (P_PID)
1381 const_iv (P_PIDFD)
1382 const_iv (P_PGID)
1383 const_iv (P_ALL)
1384
1385 const_iv (FSCONFIG_SET_FLAG)
1386 const_iv (FSCONFIG_SET_STRING)
1387 const_iv (FSCONFIG_SET_BINARY)
1388 const_iv (FSCONFIG_SET_PATH)
1389 const_iv (FSCONFIG_SET_PATH_EMPTY)
1390 const_iv (FSCONFIG_SET_FD)
1391 const_iv (FSCONFIG_CMD_CREATE)
1392 const_iv (FSCONFIG_CMD_RECONFIGURE)
1393
1394 const_iv (MOUNT_ATTR_RDONLY)
1395 const_iv (MOUNT_ATTR_NOSUID)
1396 const_iv (MOUNT_ATTR_NODEV)
1397 const_iv (MOUNT_ATTR_NOEXEC)
1398 const_iv (MOUNT_ATTR__ATIME)
1399 const_iv (MOUNT_ATTR_RELATIME)
1400 const_iv (MOUNT_ATTR_NOATIME)
1401 const_iv (MOUNT_ATTR_STRICTATIME)
1402 const_iv (MOUNT_ATTR_NODIRATIME)
1403
1404 /* these are libeio constants, and are independent of gendef0 */
1405 const_eio (SEEK_SET)
1406 const_eio (SEEK_CUR)
1407 const_eio (SEEK_END)
1408
1409 const_eio (MCL_FUTURE)
1410 const_eio (MCL_CURRENT)
1411 const_eio (MCL_ONFAULT)
1412
1413 const_eio (MS_ASYNC)
1414 const_eio (MS_INVALIDATE)
1415 const_eio (MS_SYNC)
1416
1417 const_eio (MT_MODIFY)
1418
1419 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1420 const_eio (SYNC_FILE_RANGE_WRITE)
1421 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1422
1423 const_eio (FALLOC_FL_KEEP_SIZE)
1424 const_eio (FALLOC_FL_PUNCH_HOLE)
1425 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1426 const_eio (FALLOC_FL_ZERO_RANGE)
1427 const_eio (FALLOC_FL_INSERT_RANGE)
1428 const_eio (FALLOC_FL_UNSHARE_RANGE)
1429
1430 const_eio (RENAME_NOREPLACE)
1431 const_eio (RENAME_EXCHANGE)
1432 const_eio (RENAME_WHITEOUT)
1433
1434 const_eio (READDIR_DENTS)
1435 const_eio (READDIR_DIRS_FIRST)
1436 const_eio (READDIR_STAT_ORDER)
1437 const_eio (READDIR_FOUND_UNKNOWN)
1438
1439 const_eio (DT_UNKNOWN)
1440 const_eio (DT_FIFO)
1441 const_eio (DT_CHR)
1442 const_eio (DT_DIR)
1443 const_eio (DT_BLK)
1444 const_eio (DT_REG)
1445 const_eio (DT_LNK)
1446 const_eio (DT_SOCK)
1447 const_eio (DT_WHT)
1448 };
1449
1450 aio_stash = gv_stashpv ("IO::AIO" , 1);
1451 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1452 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1453 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1454
1455 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1456 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1457
1458 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459
1460 /* allocate dummy pipe fd for aio_close */
1044 { 1461 {
1045 off_t sbytes; 1462 int pipefd [2];
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047 1463
1048 if (res < 0 && sbytes) 1464 if (
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1465#ifdef _WIN32
1050 res = sbytes; 1466 _pipe (pipefd, 1, _O_BINARY) < 0
1467#else
1468 pipe (pipefd) < 0
1469 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1470#endif
1471 || close (pipefd [1]) < 0
1472 )
1473 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1474
1475 close_fd = pipefd [0];
1051 } 1476 }
1052 1477
1053# elif __hpux 1478 reinit ();
1054 res = sendfile (ofd, ifd, offset, count, 0, 0);
1055
1056# elif __solaris
1057 {
1058 struct sendfilevec vec;
1059 size_t sbytes;
1060
1061 vec.sfv_fd = ifd;
1062 vec.sfv_flag = 0;
1063 vec.sfv_off = offset;
1064 vec.sfv_len = count;
1065
1066 res = sendfilev (ofd, &vec, 1, &sbytes);
1067
1068 if (res < 0 && sbytes)
1069 res = sbytes;
1070 }
1071
1072# endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077
1078 if (res < 0
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1080#if __solaris
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1082#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088
1089 res = 0;
1090
1091 while (count)
1092 {
1093 ssize_t cnt;
1094
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1096
1097 if (cnt <= 0)
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102
1103 cnt = write (ofd, aio_buf, cnt);
1104
1105 if (cnt <= 0)
1106 {
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110
1111 offset += cnt;
1112 res += cnt;
1113 count -= cnt;
1114 }
1115 }
1116
1117 return res;
1118} 1479}
1119 1480
1120/* read a full directory */
1121static void scandir_ (aio_req req, worker *self)
1122{
1123 DIR *dirp;
1124 union
1125 {
1126 X_DIRENT d;
1127 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1128 } *u;
1129 X_DIRENT *entp;
1130 char *name, *names;
1131 int memlen = 4096;
1132 int memofs = 0;
1133 int res = 0;
1134
1135 X_LOCK (wrklock);
1136 self->dirp = dirp = opendir (req->ptr1);
1137 self->dbuf = u = malloc (sizeof (*u));
1138 req->flags |= FLAG_PTR2_FREE;
1139 req->ptr2 = names = malloc (memlen);
1140 X_UNLOCK (wrklock);
1141
1142 if (dirp && u && names)
1143 for (;;)
1144 {
1145 errno = 0;
1146 readdir_r (dirp, &u->d, &entp);
1147
1148 if (!entp)
1149 break;
1150
1151 name = entp->d_name;
1152
1153 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1154 {
1155 int len = strlen (name) + 1;
1156
1157 res++;
1158
1159 while (memofs + len > memlen)
1160 {
1161 memlen *= 2;
1162 X_LOCK (wrklock);
1163 req->ptr2 = names = realloc (names, memlen);
1164 X_UNLOCK (wrklock);
1165
1166 if (!names)
1167 break;
1168 }
1169
1170 memcpy (names + memofs, name, len);
1171 memofs += len;
1172 }
1173 }
1174
1175 if (errno)
1176 res = -1;
1177
1178 req->result = res;
1179}
1180
1181/*****************************************************************************/
1182
1183X_THREAD_PROC (aio_proc)
1184{
1185 {//D
1186 aio_req req;
1187 struct timespec ts;
1188 worker *self = (worker *)thr_arg;
1189
1190 /* try to distribute timeouts somewhat randomly */
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192
1193 for (;;)
1194 {
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1196
1197 X_LOCK (reqlock);
1198
1199 for (;;)
1200 {
1201 self->req = req = reqq_shift (&req_queue);
1202
1203 if (req)
1204 break;
1205
1206 ++idle;
1207
1208 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1209 == ETIMEDOUT)
1210 {
1211 if (idle > max_idle)
1212 {
1213 --idle;
1214 X_UNLOCK (reqlock);
1215 X_LOCK (wrklock);
1216 --started;
1217 X_UNLOCK (wrklock);
1218 goto quit;
1219 }
1220
1221 /* we are allowed to idle, so do so without any timeout */
1222 X_COND_WAIT (reqwait, reqlock);
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224 }
1225
1226 --idle;
1227 }
1228
1229 --nready;
1230
1231 X_UNLOCK (reqlock);
1232
1233 errno = 0; /* strictly unnecessary */
1234
1235 if (!(req->flags & FLAG_CANCELLED))
1236 switch (req->type)
1237 {
1238 case REQ_READ: req->result = req->offs >= 0
1239 ? pread (req->int1, req->ptr1, req->size, req->offs)
1240 : read (req->int1, req->ptr1, req->size); break;
1241 case REQ_WRITE: req->result = req->offs >= 0
1242 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1243 : write (req->int1, req->ptr1, req->size); break;
1244
1245 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1246 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1247
1248 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1249 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1251
1252 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1253 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1254 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1255 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1256 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1257 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1258
1259 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1260 case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
1261 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1262 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1263 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1264 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1265 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1266 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1267 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1268 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1269
1270 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1271 case REQ_FSYNC: req->result = fsync (req->int1); break;
1272 case REQ_READDIR: scandir_ (req, self); break;
1273
1274 case REQ_BUSY:
1275#ifdef _WIN32
1276 Sleep (req->nv1 * 1000.);
1277#else
1278 {
1279 struct timeval tv;
1280
1281 tv.tv_sec = req->nv1;
1282 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1283
1284 req->result = select (0, 0, 0, 0, &tv);
1285 }
1286#endif
1287 break;
1288
1289 case REQ_UTIME:
1290 case REQ_FUTIME:
1291 {
1292 struct timeval tv[2];
1293 struct timeval *times;
1294
1295 if (req->nv1 != -1. || req->nv2 != -1.)
1296 {
1297 tv[0].tv_sec = req->nv1;
1298 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1299 tv[1].tv_sec = req->nv2;
1300 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1301
1302 times = tv;
1303 }
1304 else
1305 times = 0;
1306
1307
1308 req->result = req->type == REQ_FUTIME
1309 ? futimes (req->int1, times)
1310 : utimes (req->ptr1, times);
1311 }
1312
1313 case REQ_GROUP:
1314 case REQ_NOP:
1315 break;
1316
1317 case REQ_QUIT:
1318 goto quit;
1319
1320 default:
1321 req->result = -1;
1322 break;
1323 }
1324
1325 req->errorno = errno;
1326
1327 X_LOCK (reslock);
1328
1329 ++npending;
1330
1331 if (!reqq_push (&res_queue, req))
1332 {
1333 /* write a dummy byte to the pipe so fh becomes ready */
1334 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1335
1336 /* optionally signal the main thread asynchronously */
1337 if (main_sig)
1338 pthread_kill (main_tid, main_sig);
1339 }
1340
1341 self->req = 0;
1342 worker_clear (self);
1343
1344 X_UNLOCK (reslock);
1345 }
1346
1347quit:
1348 X_LOCK (wrklock);
1349 worker_free (self);
1350 X_UNLOCK (wrklock);
1351
1352 return 0;
1353 }//D
1354}
1355
1356/*****************************************************************************/
1357
1358static void atfork_prepare (void)
1359{
1360 X_LOCK (wrklock);
1361 X_LOCK (reqlock);
1362 X_LOCK (reslock);
1363#if !HAVE_PREADWRITE
1364 X_LOCK (preadwritelock);
1365#endif
1366#if !HAVE_READDIR_R
1367 X_LOCK (readdirlock);
1368#endif
1369}
1370
1371static void atfork_parent (void)
1372{
1373#if !HAVE_READDIR_R
1374 X_UNLOCK (readdirlock);
1375#endif
1376#if !HAVE_PREADWRITE
1377 X_UNLOCK (preadwritelock);
1378#endif
1379 X_UNLOCK (reslock);
1380 X_UNLOCK (reqlock);
1381 X_UNLOCK (wrklock);
1382}
1383
1384static void atfork_child (void)
1385{
1386 aio_req prv;
1387
1388 while (prv = reqq_shift (&req_queue))
1389 req_destroy (prv);
1390
1391 while (prv = reqq_shift (&res_queue))
1392 req_destroy (prv);
1393
1394 while (wrk_first.next != &wrk_first)
1395 {
1396 worker *wrk = wrk_first.next;
1397
1398 if (wrk->req)
1399 req_destroy (wrk->req);
1400
1401 worker_clear (wrk);
1402 worker_free (wrk);
1403 }
1404
1405 started = 0;
1406 idle = 0;
1407 nreqs = 0;
1408 nready = 0;
1409 npending = 0;
1410
1411 create_respipe ();
1412
1413 atfork_parent ();
1414}
1415
1416#define dREQ \
1417 aio_req req; \
1418 int req_pri = next_pri; \
1419 next_pri = DEFAULT_PRI + PRI_BIAS; \
1420 \
1421 if (SvOK (callback) && !SvROK (callback)) \
1422 croak ("callback must be undef or of reference type"); \
1423 \
1424 Newz (0, req, 1, aio_cb); \
1425 if (!req) \
1426 croak ("out of memory during aio_req allocation"); \
1427 \
1428 req->callback = newSVsv (callback); \
1429 req->pri = req_pri
1430
1431#define REQ_SEND \
1432 req_send (req); \
1433 \
1434 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1436
1437MODULE = IO::AIO PACKAGE = IO::AIO
1438
1439PROTOTYPES: ENABLE
1440
1441BOOT:
1442{
1443 stash = gv_stashpv ("IO::AIO", 1);
1444
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1447 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1448 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1449 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1450#ifdef _WIN32
1451 X_MUTEX_CHECK (wrklock);
1452 X_MUTEX_CHECK (reslock);
1453 X_MUTEX_CHECK (reqlock);
1454 X_MUTEX_CHECK (reqwait);
1455 X_MUTEX_CHECK (preadwritelock);
1456 X_MUTEX_CHECK (readdirlock);
1457
1458 X_COND_CHECK (reqwait);
1459#else
1460 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1461 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1462#endif
1463
1464 create_respipe ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467}
1468
1469void 1481void
1482reinit ()
1483 PROTOTYPE:
1484
1485void
1470max_poll_reqs (int nreqs) 1486max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1487 PROTOTYPE: $
1472 CODE: 1488 CODE:
1473 max_poll_reqs = nreqs; 1489 eio_set_max_poll_reqs (nreqs);
1474 1490
1475void 1491void
1476max_poll_time (double nseconds) 1492max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1493 PROTOTYPE: $
1478 CODE: 1494 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1495 eio_set_max_poll_time (nseconds);
1480 1496
1481void 1497void
1482min_parallel (int nthreads) 1498min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1499 PROTOTYPE: $
1492 CODE: 1500 CODE:
1493 set_max_idle (nthreads); 1501 eio_set_min_parallel (nthreads);
1494 1502
1495int 1503void
1496max_outstanding (int maxreqs) 1504max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1505 PROTOTYPE: $
1498 CODE: 1506 CODE:
1499 RETVAL = max_outstanding; 1507 eio_set_max_parallel (nthreads);
1508
1509void
1510max_idle (unsigned int nthreads)
1511 PROTOTYPE: $
1512 CODE:
1513 eio_set_max_idle (nthreads);
1514
1515void
1516idle_timeout (unsigned int seconds)
1517 PROTOTYPE: $
1518 CODE:
1519 eio_set_idle_timeout (seconds);
1520
1521void
1522max_outstanding (unsigned int maxreqs)
1523 PROTOTYPE: $
1524 CODE:
1500 max_outstanding = maxreqs; 1525 max_outstanding = maxreqs;
1501 OUTPUT:
1502 RETVAL
1503 1526
1504void 1527void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1528aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1529 PPCODE:
1508{ 1530{
1509 dREQ; 1531 dREQ;
1510 1532
1533 req->type = EIO_WD_OPEN;
1534 req_set_path1 (req, pathname);
1535
1536 REQ_SEND;
1537}
1538
1539void
1540aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1541 PPCODE:
1542{
1543 dREQ;
1544
1511 req->type = REQ_OPEN; 1545 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1546 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1547 req->int1 = flags;
1515 req->mode = mode; 1548 req->int2 = mode;
1516 1549
1517 REQ_SEND; 1550 REQ_SEND;
1518} 1551}
1519 1552
1520void 1553void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1554aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1555 ALIAS:
1524 aio_fsync = REQ_FSYNC 1556 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1557 aio_fdatasync = EIO_FDATASYNC
1558 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1559 PPCODE:
1527{ 1560{
1561 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1562 dREQ;
1529 1563
1530 req->type = ix; 1564 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1565 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1566 req->int1 = fd;
1533 1567
1534 REQ_SEND (req); 1568 REQ_SEND;
1535} 1569}
1536 1570
1537void 1571void
1572aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 int fd = s_fileno_croak (fh, 0);
1576 dREQ;
1577
1578 req->type = EIO_SYNC_FILE_RANGE;
1579 req->sv1 = newSVsv (fh);
1580 req->int1 = fd;
1581 req->offs = offset;
1582 req->size = nbytes;
1583 req->int2 = flags;
1584
1585 REQ_SEND;
1586}
1587
1588void
1589aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1590 PPCODE:
1591{
1592 int fd = s_fileno_croak (fh, 0);
1593 dREQ;
1594
1595 req->type = EIO_FALLOCATE;
1596 req->sv1 = newSVsv (fh);
1597 req->int1 = fd;
1598 req->int2 = mode;
1599 req->offs = offset;
1600 req->size = len;
1601
1602 REQ_SEND;
1603}
1604
1605void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1606aio_close (SV *fh, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1607 PPCODE:
1541{ 1608{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1609 int fd = s_fileno_croak (fh, 0);
1543 int fd = PerlIO_fileno (io);
1544
1545 if (fd < 0)
1546 croak ("aio_close called with fd-less filehandle");
1547
1548 PerlIO_binmode (aTHX_ io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1610 dREQ;
1611#if 0
1612 /* partially duplicate logic in s_fileno */
1613 SvGETMAGIC (fh);
1552 1614
1615 if (SvROK (fh))
1616 {
1617 fh = SvRV (fh);
1618 SvGETMAGIC (fh);
1619 }
1620
1621 if (SvTYPE (fh) == SVt_PVGV)
1622 {
1623 /* perl filehandle */
1624 PerlIOUnix_refcnt_inc (fd);
1625 do_close ((GV *)fh, 1);
1626
1553 req->type = REQ_CLOSE; 1627 req->type = EIO_CLOSE;
1628 req->int1 = fd;
1629 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1630 }
1631 else
1632#endif
1633 {
1634 /* fd number */
1635 req->type = EIO_DUP2;
1636 req->int1 = close_fd;
1637 req->sv2 = newSVsv (fh);
1638 req->int2 = fd;
1639 }
1640
1641 REQ_SEND;
1642}
1643
1644void
1645aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1646 PPCODE:
1647{
1648 int fd = s_fileno_croak (fh, 0);
1649 dREQ;
1650
1651 req->type = EIO_SEEK;
1554 req->sv1 = newSVsv (fh); 1652 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1653 req->int1 = fd;
1654 req->offs = SvVAL64 (offset);
1655 req->int2 = whence;
1556 1656
1557 REQ_SEND (req); 1657 REQ_SEND;
1558 }
1559} 1658}
1560 1659
1561void 1660void
1562aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1661aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1563 ALIAS: 1662 ALIAS:
1564 aio_read = REQ_READ 1663 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1664 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1665 PPCODE:
1568{ 1666{
1569 STRLEN svlen; 1667 STRLEN svlen;
1668 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1669 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1670 UV len = SvUV (length);
1572 1671
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1672 if (dataoffset < 0)
1577 dataoffset += svlen; 1673 dataoffset += svlen;
1578 1674
1579 if (dataoffset < 0 || dataoffset > svlen) 1675 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1676 croak ("dataoffset outside of data scalar");
1581 1677
1582 if (ix == REQ_WRITE) 1678 if (ix == EIO_WRITE)
1583 { 1679 {
1584 /* write: check length and adjust. */ 1680 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1681 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1682 len = svlen - dataoffset;
1587 } 1683 }
1588 else 1684 else
1589 { 1685 {
1590 /* read: grow scalar as necessary */ 1686 /* read: check type and grow scalar as necessary */
1687 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1591 svptr = SvGROW (data, len + dataoffset + 1); 1688 svptr = sv_grow (data, len + dataoffset + 1);
1689 else if (SvCUR (data) < len + dataoffset)
1690 croak ("length + dataoffset outside of scalar, and cannot grow");
1592 } 1691 }
1593
1594 if (len < 0)
1595 croak ("length must not be negative");
1596 1692
1597 { 1693 {
1598 dREQ; 1694 dREQ;
1599 1695
1600 req->type = ix; 1696 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1697 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1698 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1699 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1700 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1701 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1702 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1703 req->stroffset = dataoffset;
1609 1704
1610 if (!SvREADONLY (data)) 1705 if (!SvREADONLY (data))
1611 { 1706 {
1612 SvREADONLY_on (data); 1707 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1711 REQ_SEND;
1617 } 1712 }
1618} 1713}
1619 1714
1620void 1715void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1716aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1622 PROTOTYPE: $$;$ 1717 ALIAS:
1718 aio_ioctl = EIO_IOCTL
1719 aio_fcntl = EIO_FCNTL
1623 PPCODE: 1720 PPCODE:
1624{ 1721{
1625 SV *data; 1722 int fd = s_fileno_croak (fh, 0);
1626 dREQ; 1723 char *svptr;
1627 1724
1628 data = newSV (NAME_MAX); 1725 if (SvPOK (arg) || !SvNIOK (arg))
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK;
1632 req->sv1 = newSVsv (path);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636
1637 REQ_SEND;
1638}
1639
1640void
1641aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1642 PROTOTYPE: $$$$;$
1643 PPCODE:
1644{
1645 dREQ;
1646
1647 req->type = REQ_SENDFILE;
1648 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1650 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1652 req->offs = SvVAL64 (in_offset);
1653 req->size = length;
1654
1655 REQ_SEND;
1656}
1657
1658void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE:
1662{
1663 dREQ;
1664
1665 req->type = REQ_READAHEAD;
1666 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1668 req->offs = SvVAL64 (offset);
1669 req->size = length;
1670
1671 REQ_SEND;
1672}
1673
1674void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS:
1677 aio_stat = REQ_STAT
1678 aio_lstat = REQ_LSTAT
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->ptr2 = malloc (sizeof (Stat_t));
1684 if (!req->ptr2)
1685 { 1726 {
1686 req_destroy (req); 1727 STRLEN svlen;
1687 croak ("out of memory during aio_stat statdata allocation"); 1728 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1688 } 1729#ifdef IOCPARM_LEN
1730 STRLEN need = IOCPARM_LEN (request);
1731#else
1732 STRLEN need = 256;
1733#endif
1689 1734
1690 req->flags |= FLAG_PTR2_FREE; 1735 if (svlen < need)
1691 req->sv1 = newSVsv (fh_or_path); 1736 svptr = SvGROW (arg, need);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 } 1737 }
1698 else 1738 else
1739 svptr = (char *)SvIV (arg);
1740
1699 { 1741 {
1742 dREQ;
1743
1700 req->type = REQ_FSTAT; 1744 req->type = ix;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1745 req->sv1 = newSVsv (fh);
1746 req->int1 = fd;
1747 req->int2 = (long)request;
1748 req->sv2 = SvREFCNT_inc (arg);
1749 req->ptr2 = svptr;
1750
1751 REQ_SEND;
1702 } 1752 }
1753}
1754
1755void
1756aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1757 ALIAS:
1758 aio_readlink = EIO_READLINK
1759 aio_realpath = EIO_REALPATH
1760 PPCODE:
1761{
1762 dREQ;
1763
1764 req->type = ix;
1765 req_set_path1 (req, pathname);
1703 1766
1704 REQ_SEND; 1767 REQ_SEND;
1705} 1768}
1706 1769
1707void 1770void
1771aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1772 PPCODE:
1773{
1774 int ifd = s_fileno_croak (in_fh , 0);
1775 int ofd = s_fileno_croak (out_fh, 1);
1776 dREQ;
1777
1778 req->type = EIO_SENDFILE;
1779 req->sv1 = newSVsv (out_fh);
1780 req->int1 = ofd;
1781 req->sv2 = newSVsv (in_fh);
1782 req->int2 = ifd;
1783 req->offs = in_offset;
1784 req->size = length;
1785
1786 REQ_SEND;
1787}
1788
1789void
1790aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1791 PPCODE:
1792{
1793 int fd = s_fileno_croak (fh, 0);
1794 dREQ;
1795
1796 req->type = EIO_READAHEAD;
1797 req->sv1 = newSVsv (fh);
1798 req->int1 = fd;
1799 req->offs = offset;
1800 req->size = length;
1801
1802 REQ_SEND;
1803}
1804
1805void
1806aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1807 ALIAS:
1808 aio_stat = EIO_STAT
1809 aio_lstat = EIO_LSTAT
1810 aio_statvfs = EIO_STATVFS
1811 PPCODE:
1812{
1813 dREQ;
1814
1815 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1816
1817 REQ_SEND;
1818}
1819
1820void
1821st_xtime ()
1822 ALIAS:
1823 st_atime = 0x01
1824 st_mtime = 0x02
1825 st_ctime = 0x04
1826 st_btime = 0x08
1827 st_xtime = 0x0f
1828 PPCODE:
1829 EXTEND (SP, 4);
1830 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1831 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1832 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1833 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1834
1835void
1836st_xtimensec ()
1837 ALIAS:
1838 st_atimensec = 0x01
1839 st_mtimensec = 0x02
1840 st_ctimensec = 0x04
1841 st_btimensec = 0x08
1842 st_xtimensec = 0x0f
1843 st_btimesec = 0x10
1844 st_gen = 0x20
1845 PPCODE:
1846 EXTEND (SP, 4);
1847 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1848 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1849 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1850 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1851 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1852 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1853
1854UV
1855major (UV dev)
1856 ALIAS:
1857 minor = 1
1858 CODE:
1859 RETVAL = ix ? minor (dev) : major (dev);
1860 OUTPUT:
1861 RETVAL
1862
1863UV
1864makedev (UV maj, UV min)
1865 CODE:
1866 RETVAL = makedev (maj, min);
1867 OUTPUT:
1868 RETVAL
1869
1870void
1708aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1871aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1709 PPCODE: 1872 PPCODE:
1710{ 1873{
1711 dREQ; 1874 dREQ;
1712 1875
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1876 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1877 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1878 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1716
1717 if (SvPOK (fh_or_path))
1718 {
1719 req->type = REQ_UTIME;
1720 req->ptr1 = SvPVbyte_nolen (req->sv1);
1721 }
1722 else
1723 {
1724 req->type = REQ_FUTIME;
1725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1726 }
1727 1879
1728 REQ_SEND; 1880 REQ_SEND;
1729} 1881}
1730 1882
1731void 1883void
1732aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1884aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1733 PPCODE: 1885 PPCODE:
1734{ 1886{
1735 dREQ; 1887 dREQ;
1736 1888
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1889 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1890 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1740 if (SvPOK (fh_or_path))
1741 {
1742 req->type = REQ_TRUNCATE;
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 }
1745 else
1746 {
1747 req->type = REQ_FTRUNCATE;
1748 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1749 }
1750 1891
1751 REQ_SEND; 1892 REQ_SEND;
1752} 1893}
1753 1894
1754void 1895void
1755aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1896aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1756 PPCODE: 1897 PPCODE:
1757{ 1898{
1758 dREQ; 1899 dREQ;
1759 1900
1760 req->mode = mode; 1901 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1902 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1762
1763 if (SvPOK (fh_or_path))
1764 {
1765 req->type = REQ_CHMOD;
1766 req->ptr1 = SvPVbyte_nolen (req->sv1);
1767 }
1768 else
1769 {
1770 req->type = REQ_FCHMOD;
1771 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1772 }
1773 1903
1774 REQ_SEND; 1904 REQ_SEND;
1775} 1905}
1776 1906
1777void 1907void
1778aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1908aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1779 PPCODE: 1909 PPCODE:
1780{ 1910{
1781 dREQ; 1911 dREQ;
1782 1912
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1913 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1914 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1915 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786
1787 if (SvPOK (fh_or_path))
1788 {
1789 req->type = REQ_CHOWN;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 }
1792 else
1793 {
1794 req->type = REQ_FCHOWN;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1796 }
1797 1916
1798 REQ_SEND; 1917 REQ_SEND;
1799} 1918}
1800 1919
1801void 1920void
1921aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1922 PPCODE:
1923{
1924 dREQ;
1925
1926 req->type = EIO_READDIR;
1927 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1928
1929 if (flags & EIO_READDIR_DENTS)
1930 req->int1 |= EIO_READDIR_CUSTOM2;
1931
1932 req_set_path1 (req, pathname);
1933
1934 REQ_SEND;
1935}
1936
1937void
1938aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1939 PPCODE:
1940{
1941 dREQ;
1942
1943 req->type = EIO_MKDIR;
1944 req->int2 = mode;
1945 req_set_path1 (req, pathname);
1946
1947 REQ_SEND;
1948}
1949
1950void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1951aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1803 ALIAS: 1952 ALIAS:
1804 aio_unlink = REQ_UNLINK 1953 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1954 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1955 aio_readdir = EIO_READDIR
1807 PPCODE: 1956 PPCODE:
1808{ 1957{
1809 dREQ; 1958 dREQ;
1810 1959
1811 req->type = ix; 1960 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1961 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814 1962
1815 REQ_SEND; 1963 REQ_SEND;
1816} 1964}
1817 1965
1818void 1966void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->type = REQ_MKDIR;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode;
1828
1829 REQ_SEND;
1830}
1831
1832void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1967aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1834 ALIAS: 1968 ALIAS:
1835 aio_link = REQ_LINK 1969 aio_link = EIO_LINK
1836 aio_symlink = REQ_SYMLINK 1970 aio_symlink = EIO_SYMLINK
1837 aio_rename = REQ_RENAME 1971 aio_rename = EIO_RENAME
1838 PPCODE: 1972 PPCODE:
1839{ 1973{
1974 eio_wd wd2 = 0;
1840 dREQ; 1975 dREQ;
1841 1976
1842 req->type = ix; 1977 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 1978 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 1979 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 1980 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1981
1848 REQ_SEND; 1982 REQ_SEND;
1849} 1983}
1850 1984
1851void 1985void
1852aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1986aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1853 PPCODE: 1987 PPCODE:
1854{ 1988{
1989 eio_wd wd2 = 0;
1855 dREQ; 1990 dREQ;
1856 1991
1857 req->type = REQ_MKNOD; 1992 req->type = EIO_RENAME;
1858 req->sv1 = newSVsv (pathname); 1993 req_set_path1 (req, oldpath);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1); 1994 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1860 req->mode = (mode_t)mode; 1995 req->int2 = flags;
1861 req->offs = dev; 1996 req->int3 = (long)wd2;
1862 1997
1863 REQ_SEND; 1998 REQ_SEND;
1864} 1999}
1865 2000
1866void 2001void
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 2002aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1868 PPCODE: 2003 PPCODE:
1869{ 2004{
1870 dREQ; 2005 dREQ;
2006
2007 req->type = EIO_MKNOD;
2008 req->int2 = (mode_t)mode;
2009 req->offs = dev;
2010 req_set_path1 (req, pathname);
2011
2012 REQ_SEND;
2013}
1871 2014
2015void
2016aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2017 ALIAS:
2018 aio_mtouch = EIO_MTOUCH
2019 aio_msync = EIO_MSYNC
2020 PPCODE:
2021{
2022 STRLEN svlen;
2023 char *svptr = SvPVbyte (data, svlen);
2024 UV len = SvUV (length);
2025
2026 if (flags < 0)
2027 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2028
2029 if (offset < 0)
2030 offset += svlen;
2031
2032 if (offset < 0 || offset > svlen)
2033 croak ("offset outside of scalar");
2034
2035 if (!SvOK (length) || len + offset > svlen)
2036 len = svlen - offset;
2037
2038 {
2039 dREQ;
2040
2041 req->type = ix;
2042 req->sv2 = SvREFCNT_inc (data);
2043 req->ptr2 = (char *)svptr + offset;
2044 req->size = len;
2045 req->int1 = flags;
2046
2047 REQ_SEND;
2048 }
2049}
2050
2051void
2052aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2053 PPCODE:
2054{
2055 STRLEN svlen;
2056 char *svptr = SvPVbyte (data, svlen);
2057 UV len = SvUV (length);
2058
2059 if (offset < 0)
2060 offset += svlen;
2061
2062 if (offset < 0 || offset > svlen)
2063 croak ("offset outside of scalar");
2064
2065 if (!SvOK (length) || len + offset > svlen)
2066 len = svlen - offset;
2067
2068 {
2069 dREQ;
2070
2071 req->type = EIO_MLOCK;
2072 req->sv2 = SvREFCNT_inc (data);
2073 req->ptr2 = (char *)svptr + offset;
2074 req->size = len;
2075
2076 REQ_SEND;
2077 }
2078}
2079
2080void
2081aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2082 PPCODE:
2083{
2084 dREQ;
2085
2086 req->type = EIO_MLOCKALL;
2087 req->int1 = flags;
2088
2089 REQ_SEND;
2090}
2091
2092void
2093aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2094 PPCODE:
2095{
2096 int fd = s_fileno_croak (fh, 0);
2097 dREQ;
2098
2099 req->type = EIO_CUSTOM;
2100 req->sv1 = newSVsv (fh);
2101 req->int1 = fd;
2102
2103 req->feed = fiemap;
2104#if HAVE_FIEMAP
2105 /* keep our fingers crossed that the next two types are 64 bit */
2106 req->offs = start;
2107 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2108 req->int2 = flags;
2109 req->int3 = SvOK (count) ? SvIV (count) : -1;
2110#endif
2111
2112 REQ_SEND;
2113}
2114
2115void
2116aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2117 PPCODE:
2118{
2119 char *svptr = 0;
2120
2121 sv_clear_foreign (data);
2122
2123 if (length) /* known length, directly read into scalar */
2124 {
2125 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2126 svptr = sv_grow (data, length + 1);
2127 else if (SvCUR (data) < length)
2128 croak ("length outside of scalar, and cannot grow");
2129 else
2130 svptr = SvPVbyte_nolen (data);
2131 }
2132
2133 {
2134 dREQ;
2135
2136 req->type = EIO_SLURP;
2137 req_set_path1 (req, pathname);
2138 req->offs = offset;
2139 req->size = length;
2140 req->sv2 = SvREFCNT_inc (data);
2141 req->ptr2 = svptr;
2142
2143 if (!SvREADONLY (data))
2144 {
2145 SvREADONLY_on (data);
2146 req->flags |= FLAG_SV2_RO_OFF;
2147 }
2148
2149 REQ_SEND;
2150 }
2151}
2152
2153void
2154aio_busy (double delay, SV *callback = &PL_sv_undef)
2155 PPCODE:
2156{
2157 dREQ;
2158
1872 req->type = REQ_BUSY; 2159 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 2160 req->nv1 = delay < 0. ? 0. : delay;
1874 2161
1875 REQ_SEND; 2162 REQ_SEND;
1876} 2163}
1877 2164
1878void 2165void
1879aio_group (SV *callback=&PL_sv_undef) 2166aio_group (SV *callback = &PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 2167 PPCODE:
1882{ 2168{
1883 dREQ; 2169 dREQ;
1884 2170
1885 req->type = REQ_GROUP; 2171 req->type = EIO_GROUP;
1886 2172
2173 PUTBACK;
1887 req_send (req); 2174 req_submit (req);
2175 SPAGAIN;
2176
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2177 XPUSHs (req_sv (req, aio_grp_stash));
1889} 2178}
1890 2179
1891void 2180void
1892aio_nop (SV *callback=&PL_sv_undef) 2181aio_nop (SV *callback = &PL_sv_undef)
2182 ALIAS:
2183 aio_nop = EIO_NOP
2184 aio_sync = EIO_SYNC
1893 PPCODE: 2185 PPCODE:
1894{ 2186{
1895 dREQ; 2187 dREQ;
1896 2188
1897 req->type = REQ_NOP; 2189 req->type = ix;
1898 2190
1899 REQ_SEND; 2191 REQ_SEND;
1900} 2192}
1901 2193
1902int 2194int
1903aioreq_pri (int pri = 0) 2195aioreq_pri (int pri = NO_INIT)
1904 PROTOTYPE: ;$
1905 CODE: 2196 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 2197 RETVAL = next_pri;
1907 if (items > 0) 2198 if (items > 0)
1908 { 2199 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 2200 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 2201 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 2202 next_pri = pri;
1912 } 2203 }
1913 OUTPUT: 2204 OUTPUT:
1914 RETVAL 2205 RETVAL
1915 2206
1916void 2207void
1917aioreq_nice (int nice = 0) 2208aioreq_nice (int nice = 0)
1918 CODE: 2209 CODE:
1919 nice = next_pri - nice; 2210 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 2211 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 2212 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 2213 next_pri = nice;
1923 2214
1924void 2215void
1925flush () 2216flush ()
1926 PROTOTYPE:
1927 CODE: 2217 CODE:
1928 while (nreqs) 2218 while (eio_nreqs ())
1929 { 2219 {
1930 poll_wait (); 2220 poll_wait ();
1931 poll_cb (); 2221 poll_cb ();
1932 } 2222 }
1933 2223
1934int 2224int
1935poll() 2225poll ()
1936 PROTOTYPE:
1937 CODE: 2226 CODE:
1938 poll_wait (); 2227 poll_wait ();
1939 RETVAL = poll_cb (); 2228 RETVAL = poll_cb ();
1940 OUTPUT: 2229 OUTPUT:
1941 RETVAL 2230 RETVAL
1942 2231
1943int 2232int
1944poll_fileno() 2233poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 2234 CODE:
1947 RETVAL = respipe [0]; 2235 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 2236 OUTPUT:
1949 RETVAL 2237 RETVAL
1950 2238
1951int 2239int
1952poll_cb(...) 2240poll_cb (...)
1953 PROTOTYPE: 2241 PROTOTYPE:
1954 CODE: 2242 CODE:
1955 RETVAL = poll_cb (); 2243 RETVAL = poll_cb ();
1956 OUTPUT: 2244 OUTPUT:
1957 RETVAL 2245 RETVAL
1958 2246
1959void 2247void
1960poll_wait() 2248poll_wait ()
2249 CODE:
2250 poll_wait ();
2251
2252int
2253nreqs ()
2254 CODE:
2255 RETVAL = eio_nreqs ();
2256 OUTPUT:
2257 RETVAL
2258
2259int
2260nready ()
2261 CODE:
2262 RETVAL = eio_nready ();
2263 OUTPUT:
2264 RETVAL
2265
2266int
2267npending ()
2268 CODE:
2269 RETVAL = eio_npending ();
2270 OUTPUT:
2271 RETVAL
2272
2273int
2274nthreads ()
2275 CODE:
2276 RETVAL = eio_nthreads ();
2277 OUTPUT:
2278 RETVAL
2279
2280int
2281fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2282 CODE:
2283 RETVAL = posix_fadvise (fh, offset, length, advice);
2284 OUTPUT:
2285 RETVAL
2286
2287IV
2288sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2289 CODE:
2290 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2291 OUTPUT:
2292 RETVAL
2293
2294void
2295mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2296 PPCODE:
2297 sv_clear_foreign (scalar);
2298{
2299 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2300 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2301 if (addr == (void *)-1)
2302 XSRETURN_NO;
2303
2304 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2305
2306 if (!(prot & PROT_WRITE))
2307 SvREADONLY_on (scalar);
2308
2309 XSRETURN_YES;
2310}
2311
2312void
2313munmap (SV *scalar)
2314 CODE:
2315 sv_clear_foreign (scalar);
2316
2317SV *
2318mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2319 CODE:
2320{
2321 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2322 void *new;
2323
2324 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2325 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2326
2327 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2328
2329 RETVAL = &PL_sv_no;
2330
2331 if (new != (void *)-1)
2332 {
2333 RETVAL = new == (void *)mg->mg_ptr
2334 ? newSVpvn ("0 but true", 10)
2335 : &PL_sv_yes;
2336
2337 mg->mg_ptr = (char *)new;
2338 mg->mg_obj = (SV *)new_length;
2339
2340 SvPVX (scalar) = mg->mg_ptr;
2341 SvCUR_set (scalar, new_length);
2342 }
2343}
2344 OUTPUT:
2345 RETVAL
2346
2347int
2348madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2349 ALIAS:
2350 mprotect = 1
2351 CODE:
2352{
2353 STRLEN svlen;
2354 void *addr = SvPVbyte (scalar, svlen);
2355 STRLEN len = SvUV (length);
2356
2357 if (offset < 0)
2358 offset += svlen;
2359
2360 if (offset < 0 || offset > svlen)
2361 croak ("offset outside of scalar");
2362
2363 if (!SvOK (length) || len + offset > svlen)
2364 len = svlen - offset;
2365
2366 addr = (void *)(((intptr_t)addr) + offset);
2367 eio_page_align (&addr, &len);
2368
2369 switch (ix)
2370 {
2371 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2372 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2373 }
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2380 CODE:
2381{
2382 STRLEN svlen;
2383 void *addr = SvPVbyte (scalar, svlen);
2384 size_t len = SvUV (length);
2385
2386 if (offset < 0)
2387 offset += svlen;
2388
2389 if (offset < 0 || offset > svlen)
2390 croak ("offset outside of scalar");
2391
2392 if (!SvOK (length) || len + offset > svlen)
2393 len = svlen - offset;
2394
2395 addr = (void *)(((intptr_t)addr) + offset);
2396 eio_page_align (&addr, &len);
2397#if _POSIX_MEMLOCK_RANGE
2398 RETVAL = munlock (addr, len);
2399#else
2400 RETVAL = EIO_ENOSYS ();
2401#endif
2402}
2403 OUTPUT:
2404 RETVAL
2405
2406int
2407mlockall (int flags)
2408 PROTOTYPE: $;
2409 CODE:
2410 RETVAL = eio_mlockall_sync (flags);
2411 OUTPUT:
2412 RETVAL
2413
2414int
2415munlockall ()
2416 CODE:
2417#if _POSIX_MEMLOCK
2418 munlockall ();
2419#else
2420 RETVAL = EIO_ENOSYS ();
2421#endif
2422 OUTPUT:
2423 RETVAL
2424
2425int
2426statx (SV8 *pathname, int flags, UV mask)
2427 CODE:
2428{
2429 /* undocumented, and might go away, and anyway, should use eio_statx */
2430 SV *wdsv = 0;
2431 SV *pathsv = 0;
2432 eio_wd wd = EIO_CWD;
2433 void *ptr;
2434 int res;
2435
2436 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2437 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2438
2439 SvREFCNT_dec (pathsv);
2440 SvREFCNT_dec (wdsv);
2441}
2442 OUTPUT:
2443 RETVAL
2444
2445U32
2446stx_mode ()
1961 PROTOTYPE: 2447 PROTOTYPE:
1962 CODE: 2448 CODE:
1963 poll_wait (); 2449#if HAVE_STATX
2450 RETVAL = stx.stx_mode;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
1964 2456
2457#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2458#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2459#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2460#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2461#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2462#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2463#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2464#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2465#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2466#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2467#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2468#define STATX_OFFSET_size statx_offsetof (stx_size)
2469#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2470#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2471#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2472#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2473#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2474#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2475
2476U32
2477stx_mask ()
2478 PROTOTYPE:
2479 ALIAS:
2480 stx_mask = STATX_OFFSET_mask
2481 stx_blksize = STATX_OFFSET_blksize
2482 stx_nlink = STATX_OFFSET_nlink
2483 stx_uid = STATX_OFFSET_uid
2484 stx_gid = STATX_OFFSET_gid
2485 stx_rdev_major = STATX_OFFSET_rdev_major
2486 stx_rdev_minor = STATX_OFFSET_rdev_minor
2487 stx_dev_major = STATX_OFFSET_dev_major
2488 stx_dev_minor = STATX_OFFSET_dev_minor
2489 CODE:
2490#if HAVE_STATX
2491 RETVAL = *(__u32 *)((char *)&stx + ix);
2492#else
2493 XSRETURN_UNDEF;
2494#endif
2495 OUTPUT:
2496 RETVAL
2497
2498VAL64
2499stx_attributes ()
2500 PROTOTYPE:
2501 ALIAS:
2502 stx_attributes = STATX_OFFSET_attributes
2503 stx_ino = STATX_OFFSET_ino
2504 stx_size = STATX_OFFSET_size
2505 stx_blocks = STATX_OFFSET_blocks
2506 stx_attributes_mask = STATX_OFFSET_attributes_mask
2507 CODE:
2508#if HAVE_STATX
2509 RETVAL = *(__u64 *)((char *)&stx + ix);
2510#else
2511 XSRETURN_UNDEF;
2512#endif
2513 OUTPUT:
2514 RETVAL
2515
2516NV
2517stx_atime ()
2518 PROTOTYPE:
2519 ALIAS:
2520 stx_atime = STATX_OFFSET_atime
2521 stx_btime = STATX_OFFSET_btime
2522 stx_ctime = STATX_OFFSET_ctime
2523 stx_mtime = STATX_OFFSET_mtime
2524 CODE:
2525#if HAVE_STATX
2526 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2527 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2528#else
2529 XSRETURN_UNDEF;
2530#endif
2531 OUTPUT:
2532 RETVAL
2533
2534VAL64
2535stx_atimesec ()
2536 PROTOTYPE:
2537 ALIAS:
2538 stx_atimesec = STATX_OFFSET_atime
2539 stx_btimesec = STATX_OFFSET_btime
2540 stx_ctimesec = STATX_OFFSET_ctime
2541 stx_mtimesec = STATX_OFFSET_mtime
2542 CODE:
2543#if HAVE_STATX
2544 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2545 RETVAL = ts->tv_sec;
2546#else
2547 XSRETURN_UNDEF;
2548#endif
2549 OUTPUT:
2550 RETVAL
2551
2552U32
2553stx_atimensec ()
2554 PROTOTYPE:
2555 ALIAS:
2556 stx_atimensec = STATX_OFFSET_atime
2557 stx_btimensec = STATX_OFFSET_btime
2558 stx_ctimensec = STATX_OFFSET_ctime
2559 stx_mtimensec = STATX_OFFSET_mtime
2560 CODE:
2561#if HAVE_STATX
2562 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2563 RETVAL = ts->tv_nsec;
2564#else
2565 RETVAL = 0;
2566#endif
2567 OUTPUT:
2568 RETVAL
2569
1965void 2570void
1966setsig (int signum = SIGIO) 2571accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2572 PPCODE:
2573{
2574 SV *retval;
2575#if HAVE_ACCEPT4
2576 socklen_t salen_ = salen ? salen + 1 : 0;
2577
2578 if (salen)
2579 {
2580 sv_upgrade (sockaddr, SVt_PV);
2581 sv_grow (sockaddr, salen_);
2582 }
2583
2584 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2585
2586 retval = newmortalFH (res, O_RDWR);
2587
2588 if (res >= 0 && salen > 0)
2589 {
2590 if (salen_ > salen + 1)
2591 salen_ = salen + 1;
2592
2593 SvPOK_only (sockaddr);
2594 SvCUR_set (sockaddr, salen_);
2595 }
2596#else
2597 errno = ENOSYS;
2598 retval = &PL_sv_undef;
2599#endif
2600 XPUSHs (retval);
2601}
2602
2603ssize_t
2604splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2605 CODE:
2606{
2607#if HAVE_LINUX_SPLICE
2608 loff_t off_in_, off_out_;
2609 RETVAL = splice (
2610 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2611 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2612 length, flags
2613 );
2614#else
2615 RETVAL = EIO_ENOSYS ();
2616#endif
2617}
2618 OUTPUT:
2619 RETVAL
2620
2621ssize_t
2622tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2623 CODE:
2624#if HAVE_LINUX_SPLICE
2625 RETVAL = tee (rfh, wfh, length, flags);
2626#else
2627 RETVAL = EIO_ENOSYS ();
2628#endif
2629 OUTPUT:
2630 RETVAL
2631
2632int
2633pipesize (aio_rfd rfh, int new_size = -1)
2634 PROTOTYPE: $;$
2635 CODE:
2636#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2637 if (new_size >= 0)
2638 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2639 else
2640 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2641#else
2642 errno = ENOSYS;
2643 RETVAL = -1;
2644#endif
2645 OUTPUT:
2646 RETVAL
2647
2648void
2649pipe2 (int flags = 0)
1967 PROTOTYPE: ;$ 2650 PROTOTYPE: ;$
1968 CODE:
1969{
1970 if (block_sig_level)
1971 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1972
1973 X_LOCK (reslock);
1974 main_tid = pthread_self ();
1975 main_sig = signum;
1976 X_UNLOCK (reslock);
1977
1978 if (main_sig && npending)
1979 pthread_kill (main_tid, main_sig);
1980}
1981
1982void
1983aio_block (SV *cb)
1984 PROTOTYPE: &
1985 PPCODE: 2651 PPCODE:
1986{ 2652{
1987 int count; 2653 int fd[2];
2654 int res;
1988 2655
1989 block_sig (); 2656 if (flags)
1990 PUSHMARK (SP); 2657#if HAVE_PIPE2
1991 PUTBACK; 2658 res = pipe2 (fd, flags);
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2659#else
1993 SPAGAIN; 2660 res = (errno = ENOSYS, -1);
1994 unblock_sig (); 2661#endif
2662 else
2663 res = pipe (fd);
1995 2664
1996 if (SvTRUE (ERRSV)) 2665 if (!res)
1997 croak (0); 2666 {
2667 EXTEND (SP, 2);
2668 PUSHs (newmortalFH (fd[0], O_RDONLY));
2669 PUSHs (newmortalFH (fd[1], O_WRONLY));
2670 }
2671}
1998 2672
1999 XSRETURN (count); 2673void
2674pidfd_open (int pid, unsigned int flags = 0)
2675 PPCODE:
2676{
2677 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2678 int fd = syscall (SYS_pidfd_open, pid, flags);
2679 XPUSHs (newmortalFH (fd, O_RDWR));
2000} 2680}
2001 2681
2002int 2682int
2003nreqs() 2683pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2004 PROTOTYPE: 2684 PPCODE:
2685{
2686 #if HAVE_SIGINFO_T
2687 int res;
2688 siginfo_t si = { 0 };
2689
2690 if (SvOK (siginfo))
2691 {
2692 HV *hv;
2693 SV **svp;
2694
2695 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2696 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2697
2698 hv = (HV *)SvRV (siginfo);
2699
2700 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2701 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2702 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2705 }
2706
2707 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2708 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2709 #else
2710 res = (errno = ENOSYS, -1);
2711 #endif
2712
2713 XPUSHs (sv_2mortal (newSViv (res)));
2714}
2715
2716void
2717pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2718 PPCODE:
2719{
2720 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2721 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2722 XPUSHs (newmortalFH (fd, O_RDWR));
2723}
2724
2725void
2726eventfd (unsigned int initval = 0, int flags = 0)
2727 PPCODE:
2728{
2729 int fd;
2730#if HAVE_EVENTFD
2731 fd = eventfd (initval, flags);
2732#else
2733 fd = (errno = ENOSYS, -1);
2734#endif
2735
2736 XPUSHs (newmortalFH (fd, O_RDWR));
2737}
2738
2739void
2740timerfd_create (int clockid, int flags = 0)
2741 PPCODE:
2742{
2743 int fd;
2744#if HAVE_TIMERFD
2745 fd = timerfd_create (clockid, flags);
2746#else
2747 fd = (errno = ENOSYS, -1);
2748#endif
2749
2750 XPUSHs (newmortalFH (fd, O_RDWR));
2751}
2752
2753void
2754timerfd_settime (SV *fh, int flags, NV interval, NV value)
2755 PPCODE:
2756{
2757 int fd = s_fileno_croak (fh, 0);
2758#if HAVE_TIMERFD
2759 int res;
2760 struct itimerspec its, ots;
2761
2762 ts_set (&its.it_interval, interval);
2763 ts_set (&its.it_value , value);
2764 res = timerfd_settime (fd, flags, &its, &ots);
2765
2766 if (!res)
2767 {
2768 EXTEND (SP, 2);
2769 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2770 PUSHs (newSVnv (ts_get (&ots.it_value)));
2771 }
2772#else
2773 errno = ENOSYS;
2774#endif
2775}
2776
2777void
2778timerfd_gettime (SV *fh)
2779 PPCODE:
2780{
2781 int fd = s_fileno_croak (fh, 0);
2782#if HAVE_TIMERFD
2783 int res;
2784 struct itimerspec ots;
2785 res = timerfd_gettime (fd, &ots);
2786
2787 if (!res)
2788 {
2789 EXTEND (SP, 2);
2790 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2791 PUSHs (newSVnv (ts_get (&ots.it_value)));
2792 }
2793#else
2794 errno = ENOSYS;
2795#endif
2796}
2797
2798void
2799memfd_create (SV8 *pathname, int flags = 0)
2800 PPCODE:
2801{
2802 int fd;
2803#if HAVE_MEMFD_CREATE
2804 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2805#else
2806 fd = (errno = ENOSYS, -1);
2807#endif
2808
2809 XPUSHs (newmortalFH (fd, O_RDWR));
2810}
2811
2812UV
2813get_fdlimit ()
2005 CODE: 2814 CODE:
2006 RETVAL = nreqs; 2815#if HAVE_RLIMITS
2816 struct rlimit rl;
2817 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2819#endif
2820 XSRETURN_UNDEF;
2007 OUTPUT: 2821 OUTPUT:
2008 RETVAL 2822 RETVAL
2009 2823
2010int 2824void
2011nready() 2825min_fdlimit (UV limit = 0x7fffffffU)
2012 PROTOTYPE:
2013 CODE: 2826 CODE:
2014 RETVAL = get_nready (); 2827{
2015 OUTPUT: 2828#if HAVE_RLIMITS
2016 RETVAL 2829 struct rlimit rl;
2830 rlim_t orig_rlim_max;
2831 UV bit;
2017 2832
2018int 2833 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2019npending() 2834 goto fail;
2020 PROTOTYPE: 2835
2836 if (rl.rlim_cur == RLIM_INFINITY)
2837 XSRETURN_YES;
2838
2839 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2840
2841 if (rl.rlim_cur < limit)
2842 {
2843 rl.rlim_cur = limit;
2844
2845 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2846 rl.rlim_max = rl.rlim_cur;
2847 }
2848
2849 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2850 XSRETURN_YES;
2851
2852 if (errno == EPERM)
2853 {
2854 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2855 /* our limit overflows a system-wide limit */
2856 /* try an adaptive algorithm, but do not lower the hardlimit */
2857 rl.rlim_max = 0;
2858 for (bit = 0x40000000U; bit; bit >>= 1)
2859 {
2860 rl.rlim_max |= bit;
2861 rl.rlim_cur = rl.rlim_max;
2862
2863 /* never decrease the hard limit */
2864 if (rl.rlim_max < orig_rlim_max)
2865 break;
2866
2867 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2868 rl.rlim_max &= ~bit; /* too high, remove bit again */
2869 }
2870
2871 /* now, raise the soft limit to the max permitted */
2872 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2873 {
2874 rl.rlim_cur = rl.rlim_max;
2875 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2876 errno = EPERM;
2877 }
2878 }
2879#endif
2880 fail:
2881 XSRETURN_UNDEF;
2882}
2883
2884void _on_next_submit (SV *cb)
2021 CODE: 2885 CODE:
2022 RETVAL = get_npending (); 2886 SvREFCNT_dec (on_next_submit);
2023 OUTPUT: 2887 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2024 RETVAL
2025 2888
2026int 2889PROTOTYPES: DISABLE
2027nthreads() 2890
2028 PROTOTYPE: 2891MODULE = IO::AIO PACKAGE = IO::AIO::WD
2892
2893BOOT:
2894{
2895 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2896 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2897}
2898
2899void
2900DESTROY (SV *self)
2029 CODE: 2901 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2902{
2031 RETVAL = started; 2903 aio_wd wd = SvAIO_WD (self);
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 2904#if HAVE_AT
2033 OUTPUT: 2905 {
2034 RETVAL 2906 SV *callback = &PL_sv_undef;
2035 2907 dREQ; /* clobbers next_pri :/ */
2036PROTOTYPES: DISABLE 2908 next_pri = req->pri; /* restore next_pri */
2909 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2910 req->type = EIO_WD_CLOSE;
2911 req->wd = wd;
2912 REQ_SEND;
2913 }
2914#else
2915 eio_wd_close_sync (wd);
2916#endif
2917}
2037 2918
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2919MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 2920
2040void 2921void
2041cancel (aio_req_ornot req) 2922cancel (aio_req_ornot req)
2042 CODE: 2923 CODE:
2043 req_cancel (req); 2924 eio_cancel (req);
2044 2925
2045void 2926void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2927cb (aio_req_ornot req, SV *callback = NO_INIT)
2047 CODE: 2928 PPCODE:
2929{
2930 if (GIMME_V != G_VOID)
2931 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2932
2933 if (items > 1)
2934 {
2935 SV *cb_cv = get_cb (callback);
2936
2048 SvREFCNT_dec (req->callback); 2937 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 2938 req->callback = SvREFCNT_inc (cb_cv);
2939 }
2940}
2050 2941
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2942MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 2943
2053void 2944void
2054add (aio_req grp, ...) 2945add (aio_req grp, ...)
2055 PPCODE: 2946 PPCODE:
2056{ 2947{
2057 int i; 2948 int i;
2058 aio_req req;
2059
2060 if (main_sig && !block_sig_level)
2061 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2062 2949
2063 if (grp->int1 == 2) 2950 if (grp->int1 == 2)
2064 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2951 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2065 2952
2066 for (i = 1; i < items; ++i ) 2953 for (i = 1; i < items; ++i )
2067 { 2954 {
2955 aio_req req;
2956
2068 if (GIMME_V != G_VOID) 2957 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2958 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 2959
2071 req = SvAIO_REQ (ST (i)); 2960 req = SvAIO_REQ (ST (i));
2072 2961
2073 if (req) 2962 if (req)
2074 { 2963 eio_grp_add (grp, req);
2075 ++grp->size;
2076 req->grp = grp;
2077
2078 req->grp_prev = 0;
2079 req->grp_next = grp->grp_first;
2080
2081 if (grp->grp_first)
2082 grp->grp_first->grp_prev = req;
2083
2084 grp->grp_first = req;
2085 }
2086 } 2964 }
2087} 2965}
2088 2966
2089void 2967void
2090cancel_subs (aio_req_ornot req) 2968cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 2977 AV *av;
2100 2978
2101 grp->errorno = errno; 2979 grp->errorno = errno;
2102 2980
2103 av = newAV (); 2981 av = newAV ();
2982 av_extend (av, items - 1);
2104 2983
2105 for (i = 1; i < items; ++i ) 2984 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 2985 av_push (av, newSVsv (ST (i)));
2107 2986
2108 SvREFCNT_dec (grp->sv1); 2987 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 2994 grp->errorno = errorno;
2116 2995
2117void 2996void
2118limit (aio_req grp, int limit) 2997limit (aio_req grp, int limit)
2119 CODE: 2998 CODE:
2120 grp->int2 = limit; 2999 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 3000
2123void 3001void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 3002feed (aio_req grp, SV *callback = &PL_sv_undef)
2125 CODE: 3003 CODE:
2126{ 3004{
2127 SvREFCNT_dec (grp->sv2); 3005 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 3006 grp->sv2 = newSVsv (callback);
3007 grp->feed = aio_grp_feed;
2129 3008
2130 if (grp->int2 <= 0) 3009 if (grp->int2 <= 0)
2131 grp->int2 = 2; 3010 grp->int2 = 2;
2132 3011
2133 aio_grp_feed (grp); 3012 eio_grp_limit (grp, grp->int2);
2134} 3013}
2135 3014

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