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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.113 by root, Wed Apr 16 16:45:18 2008 UTC vs.
Revision 1.287 by root, Tue Dec 29 15:28:02 2020 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#if HAVE_SYSCALL
233#include <sys/syscall.h>
98#else 234#else
99# define SvVAL64 SvNV 235# define syscall(nr,...) (errno = ENOSYS, -1)
100#endif 236#endif
101 237
102static HV *stash; 238/*****************************************************************************/
103 239
104#define dBUF \ 240#if !_POSIX_MAPPED_FILES
105 char *aio_buf; \ 241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
106 X_LOCK (wrklock); \ 242# define munmap(addr,length) EIO_ENOSYS ()
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 243#endif
108 X_UNLOCK (wrklock); \ 244
109 if (!aio_buf) \ 245#if !_POSIX_MEMORY_PROTECTION
246# define mprotect(addr,len,prot) EIO_ENOSYS ()
247#endif
248
249#if !MREMAP_MAYMOVE
250# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
251#endif
252
253#define FOREIGN_MAGIC PERL_MAGIC_ext
254
255static int ecb_cold
256mmap_free (pTHX_ SV *sv, MAGIC *mg)
257{
258 int old_errno = errno;
259 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
260 errno = old_errno;
261
262 mg->mg_obj = 0; /* just in case */
263
264 SvREADONLY_off (sv);
265
266 if (SvPVX (sv) != mg->mg_ptr)
267 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
268
269 SvCUR_set (sv, 0);
270 SvPVX (sv) = 0;
271 SvOK_off (sv);
272
110 return -1; 273 return 0;
274}
111 275
112typedef SV SV8; /* byte-sv, used for argument-checking */ 276static MGVTBL mmap_vtbl = {
113 277 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_SYNC, 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}; 278};
131 279
132#define AIO_REQ_KLASS "IO::AIO::REQ" 280static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 281sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 282{
137 struct aio_cb *volatile next; 283 free (mg->mg_ptr);
284 mg->mg_obj = 0; /* just in case */
138 285
139 SV *callback; 286 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;
146 287
147 STRLEN stroffset; 288 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 289 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 290
153 unsigned char flags; 291 SvCUR_set (sv, 0);
154 unsigned char pri; 292 SvPVX (sv) = 0;
293 SvOK_off (sv);
155 294
156 SV *self; /* the perl counterpart of this request, if any */ 295 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 296}
158} aio_cb;
159 297
160enum { 298static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 299 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}; 300};
165 301
166typedef aio_cb *aio_req; 302/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 303
169enum { 304/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 305ecb_noinline
171 PRI_MAX = 4, 306static void
172 307sv_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{ 308{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 309 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 310
190static thread_t main_tid; 311 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 312 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 313 ->mg_obj = (SV *)length;
193 314
194void block_sig (void) 315 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 316
198 if (block_sig_level++) 317 if (SvLEN (sv))
318 Safefree (SvPVX (sv));
319
320 SvPVX (sv) = (char *)addr;
321 SvCUR_set (sv, length);
322 SvLEN_set (sv, 0);
323 SvPOK_only (sv);
324}
325
326static void
327sv_clear_foreign (SV *sv)
328{
329 /* todo: iterate over magic and only free ours, but of course */
330 /* the perl5porters will call that (correct) behaviour buggy */
331 sv_unmagic (sv, FOREIGN_MAGIC);
332}
333
334/*****************************************************************************/
335
336/* defines all sorts of constants to 0 unless they are already defined */
337/* also provides const_iv_ and const_niv_ macros for them */
338#include "def0.h"
339
340/*****************************************************************************/
341
342static void
343fiemap (eio_req *req)
344{
345 req->result = -1;
346
347#if HAVE_FIEMAP
348 /* assume some c99 */
349 struct fiemap *fiemap = 0;
350 size_t end_offset;
351 int count = req->int3;
352
353 req->flags |= EIO_FLAG_PTR1_FREE;
354
355 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
356 /* increase in fixed steps */
357 if (count < 0)
358 count = 8;
359
360 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
361 errno = ENOMEM;
362 if (!fiemap)
199 return; 363 return;
200 364
201 if (!main_sig) 365 req->ptr1 = fiemap;
366
367 fiemap->fm_start = req->offs;
368 fiemap->fm_length = req->size;
369 fiemap->fm_flags = req->int2;
370 fiemap->fm_extent_count = count;
371
372 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 373 return;
203 374
204 sigemptyset (&ss); 375 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 376 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 377 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 378 goto done;
208 379
209void unblock_sig (void) 380 /* else we have to loop -
210{ 381 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 382 * number of extents needed, but linux often feels like not returning all
383 * extents, without telling us it left any out. this complicates
384 * this quite a bit.
385 */
212 386
213 if (--block_sig_level) 387 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 388
216 if (!main_sig) 389 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 { 390 {
249 closedir (wrk->dirp); 391 /* 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; 392 char scratch[3072];
251 } 393 struct fiemap *incmap = (struct fiemap *)scratch;
252 394
253 if (wrk->dbuf) 395 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 396 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 397 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 398 incmap->fm_flags = fiemap->fm_flags;
257 } 399 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 400
260static void worker_free (worker *wrk) 401 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 (void)
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 (void)
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 (void)
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; 402 return;
355 403
356 --q->size; 404 if (!incmap->fm_mapped_extents)
405 goto done;
357 406
358 for (pri = NUM_PRI; pri--; ) 407 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 408 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 409 errno = ENOMEM;
361
362 if (req) 410 if (!fiemap)
411 return;
412
413 req->ptr1 = fiemap;
414
415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 416 {
364 if (!(q->qs[pri] = req->next)) 417 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 418
367 return req; 419 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
420
421 if (e->fe_logical >= end_offset)
422 goto done;
423
424 if (e->fe_flags & FIEMAP_EXTENT_LAST)
425 goto done;
426
368 } 427 }
369 } 428 }
370 429
371 abort (); 430done:
372} 431 req->result = 0;
373 432
374static int poll_cb (void); 433#else
375static int req_invoke (aio_req req); 434 errno = ENOSYS;
435#endif
436}
437
438/*****************************************************************************/
439
440static int close_fd; /* dummy fd to close fds via dup2 */
441
442#if HAVE_STATX
443static struct statx stx;
444#define statx_offsetof(member) offsetof (struct statx, member)
445#define eio__statx statx
446#else
447#define statx_offsetof(member) 0
448#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
449#endif
450
451enum {
452 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
453};
454
455typedef eio_req *aio_req;
456typedef eio_req *aio_req_ornot;
457typedef eio_wd aio_wd;
458
459static SV *on_next_submit;
460static int next_pri = EIO_PRI_DEFAULT;
461static int max_outstanding;
462
463static s_epipe respipe;
464
376static void req_destroy (aio_req req); 465static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 466static void req_cancel (aio_req req);
378 467
468static void
469want_poll (void)
470{
471 /* write a dummy byte to the pipe so fh becomes ready */
472 s_epipe_signal (&respipe);
473}
474
475static void
476done_poll (void)
477{
478 /* read any signals sent by the worker threads */
479 s_epipe_drain (&respipe);
480}
481
379/* must be called at most once */ 482/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 483ecb_noinline
484static SV *
485req_sv (aio_req req, HV *stash)
381{ 486{
382 if (!req->self) 487 if (!req->self)
383 { 488 {
384 req->self = (SV *)newHV (); 489 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 490 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 491 }
387 492
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 493 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 494}
390 495
391static aio_req SvAIO_REQ (SV *sv) 496static SV *
497newSVaio_wd (aio_wd wd)
498{
499 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
500}
501
502ecb_noinline
503static aio_req
504SvAIO_REQ (SV *sv)
392{ 505{
393 MAGIC *mg; 506 MAGIC *mg;
394 507
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 508 if (!SvROK (sv)
509 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
510 || (SvSTASH (SvRV (sv)) != aio_grp_stash
511 && SvSTASH (SvRV (sv)) != aio_req_stash
512 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 513 croak ("object of class IO::AIO::REQ expected");
397 514
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 515 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 516
400 return mg ? (aio_req)mg->mg_ptr : 0; 517 return mg ? (aio_req)mg->mg_ptr : 0;
401} 518}
402 519
520static aio_wd
521SvAIO_WD (SV *sv)
522{
523 if (!SvROK (sv)
524 || SvTYPE (SvRV (sv)) != SVt_PVMG
525 || SvSTASH (SvRV (sv)) != aio_wd_stash)
526 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
527
528 return (aio_wd)(long)SvIVX (SvRV (sv));
529}
530
531static SV *
532newmortalFH (int fd, int flags)
533{
534 if (fd < 0)
535 return &PL_sv_undef;
536
537 GV *gv = (GV *)sv_newmortal ();
538 char sym[64];
539 int symlen;
540
541 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
542 gv_init (gv, aio_stash, sym, symlen, 0);
543
544 symlen = snprintf (
545 sym,
546 sizeof (sym),
547 "%s&=%d",
548 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
549 fd
550 );
551
552 return do_open (gv, sym, symlen, 0, 0, 0, 0)
553 ? (SV *)gv : &PL_sv_undef;
554}
555
556static void
403static void aio_grp_feed (aio_req grp) 557aio_grp_feed (aio_req grp)
404{ 558{
405 block_sig (); 559 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 560 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 561 dSP;
414 562
415 ENTER; 563 ENTER;
416 SAVETMPS; 564 SAVETMPS;
417 PUSHMARK (SP); 565 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 566 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 567 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 568 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 569 SPAGAIN;
422 FREETMPS; 570 FREETMPS;
423 LEAVE; 571 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 } 572 }
434
435 unblock_sig ();
436} 573}
437 574
438static void aio_grp_dec (aio_req grp) 575ecb_noinline
576static void
577req_submit (eio_req *req)
439{ 578{
440 --grp->size; 579 eio_submit (req);
441 580
442 /* call feeder, if applicable */ 581 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 582 {
448 block_sig (); 583 dSP;
584 SV *cb = sv_2mortal (on_next_submit);
449 585
450 if (!req_invoke (grp)) 586 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 587
457 req_destroy (grp); 588 PUSHMARK (SP);
458 unblock_sig (); 589 PUTBACK;
590 call_sv (cb, G_DISCARD | G_EVAL);
459 } 591 }
460} 592}
461 593
594static int
462static int req_invoke (aio_req req) 595req_invoke (eio_req *req)
463{ 596{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 597 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 598 SvREADONLY_off (req->sv2);
468 599
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 600 if (!EIO_CANCELLED (req) && req->callback)
470 { 601 {
602 dSP;
603 static SV *sv_result_cache; /* caches the result integer SV */
604 SV *sv_result;
605
471 ENTER; 606 ENTER;
472 SAVETMPS; 607 SAVETMPS;
473 PUSHMARK (SP); 608 PUSHMARK (SP);
474 EXTEND (SP, 1); 609 EXTEND (SP, 1);
475 610
611 /* do not recreate the result IV from scratch each time */
612 if (expect_true (sv_result_cache))
613 {
614 sv_result = sv_result_cache; sv_result_cache = 0;
615 SvIV_set (sv_result, req->result);
616 SvIOK_only (sv_result);
617 }
618 else
619 {
620 sv_result = newSViv (req->result);
621 SvREADONLY_on (sv_result);
622 }
623
476 switch (req->type) 624 switch (req->type)
477 { 625 {
626 case EIO_WD_OPEN:
627 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
628 break;
629
478 case REQ_READDIR: 630 case EIO_READDIR:
479 { 631 {
480 SV *rv = &PL_sv_undef; 632 SV *rv = &PL_sv_undef;
481 633
482 if (req->result >= 0) 634 if (req->result >= 0)
483 { 635 {
484 int i; 636 int i;
485 char *buf = req->ptr2; 637 char *names = (char *)req->ptr2;
638 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 639 AV *av = newAV ();
487 640
488 av_extend (av, req->result - 1); 641 av_extend (av, req->result - 1);
489 642
490 for (i = 0; i < req->result; ++i) 643 for (i = 0; i < req->result; ++i)
491 { 644 {
492 SV *sv = newSVpv (buf, 0); 645 if (req->int1 & EIO_READDIR_DENTS)
646 {
647 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 648
649 if (req->int1 & EIO_READDIR_CUSTOM2)
650 {
651 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
652 AV *avent = newAV ();
653
654 av_extend (avent, 2);
655
656 if (!sv_type [ent->type])
657 {
658 sv_type [ent->type] = newSViv (ent->type);
659 SvREADONLY_on (sv_type [ent->type]);
660 }
661
662 av_store (avent, 0, namesv);
663 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
664 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
665
666 av_store (av, i, newRV_noinc ((SV *)avent));
667 }
668 else
494 av_store (av, i, sv); 669 av_store (av, i, namesv);
670
671 ++ent;
672 }
673 else
674 {
675 SV *name = newSVpv (names, 0);
676 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 677 names += SvCUR (name) + 1;
678 }
496 } 679 }
497 680
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 681 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 682 }
500 683
501 PUSHs (rv); 684 PUSHs (rv);
685
686 if (req->int1 & EIO_READDIR_CUSTOM1)
687 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 688 }
503 break; 689 break;
504 690
505 case REQ_OPEN: 691 case EIO_OPEN:
692 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
693 break;
694
695 case EIO_STATVFS:
696 case EIO_FSTATVFS:
506 { 697 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 698 SV *rv = &PL_sv_undef;
509 699
700#ifndef _WIN32
510 if (req->result >= 0) 701 if (req->result >= 0)
511 { 702 {
703 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 704 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 705 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 706 * chooses to make it a struct.
515 int symlen;
516 707 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 708 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 709 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 710
520 symlen = snprintf ( 711 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 );
527 712
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 713 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 714 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
715 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
716 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
717 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
718 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
719 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
720 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
721 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
722 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
723 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 724 }
725#endif
531 726
532 PUSHs (fh); 727 PUSHs (rv);
533 } 728 }
729
534 break; 730 break;
535 731
536 case REQ_GROUP: 732 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 733 req->int1 = 2; /* mark group as finished */
538 734
539 if (req->sv1) 735 if (req->sv1)
540 { 736 {
541 int i; 737 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 741 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 742 PUSHs (*av_fetch (av, i, 0));
547 } 743 }
548 break; 744 break;
549 745
550 case REQ_NOP: 746 case EIO_NOP:
551 case REQ_BUSY: 747 case EIO_BUSY:
552 break; 748 break;
553 749
554 case REQ_READLINK: 750 case EIO_READLINK:
751 case EIO_REALPATH:
555 if (req->result > 0) 752 if (req->result > 0)
753 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
754 break;
755
756 case EIO_STAT:
757 case EIO_LSTAT:
758 case EIO_FSTAT:
759 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
760
761 if (!(PL_laststatval = req->result))
762 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
763 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
764
765 PUSHs (sv_result);
766 break;
767
768 case EIO_SEEK:
769 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
770 break;
771
772 case EIO_READ:
773 {
774 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 SvSETMAGIC (req->sv2);
778 PUSHs (sv_result);
779 }
780 break;
781
782 case EIO_SLURP:
783 {
784 if (req->result >= 0)
785 {
786 /* if length was originally not known, we steal the malloc'ed memory */
787 if (req->flags & EIO_FLAG_PTR2_FREE)
788 {
789 req->flags &= ~EIO_FLAG_PTR2_FREE;
790 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
791 }
792 else
793 {
794 SvCUR_set (req->sv2, req->result);
795 *SvEND (req->sv2) = 0;
796 SvPOK_only (req->sv2);
797 }
798
799 SvSETMAGIC (req->sv2);
800 }
801
802 PUSHs (sv_result);
803 }
804 break;
805
806 case EIO_CUSTOM:
807 if (req->feed == fiemap)
556 { 808 {
557 SvCUR_set (req->sv2, req->result); 809#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 810 if (!req->result)
811 {
812 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
813
814 if (fiemap->fm_extent_count)
815 {
816 AV *av = newAV ();
817 int i;
818
819 while (fiemap->fm_mapped_extents)
820 {
821 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
822 AV *ext_av = newAV ();
823
824 av_store (ext_av, 3, newSVuv (extent->fe_flags));
825 av_store (ext_av, 2, newSVval64 (extent->fe_length));
826 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
827 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
828
829 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
830 }
831
832 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
833 }
834 else
835 {
836 SvIV_set (sv_result, fiemap->fm_mapped_extents);
837 PUSHs (sv_result);
838 }
839 }
840#endif
560 } 841 }
842 else
843 PUSHs (sv_result);
561 break; 844 break;
562 845
563 case REQ_STAT: 846#if 0
564 case REQ_LSTAT: 847 case EIO_CLOSE:
565 case REQ_FSTAT: 848 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; 849 break;
850#endif
571 851
572 case REQ_READ: 852 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)); 853 if (req->result > 0)
574 *SvEND (req->sv2) = 0; 854 SvIV_set (sv_result, 0);
575 PUSHs (sv_2mortal (newSViv (req->result))); 855 /* FALLTHROUGH */
576 break;
577 856
578 default: 857 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 858 PUSHs (sv_result);
580 break; 859 break;
581 } 860 }
582 861
583 errno = req->errorno; 862 errno = req->errorno;
584 863
585 PUTBACK; 864 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 865 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 866 SPAGAIN;
588 867
868 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
869 SvREFCNT_dec (sv_result);
870 else
871 sv_result_cache = sv_result;
872
589 FREETMPS; 873 FREETMPS;
590 LEAVE; 874 LEAVE;
591 875
592 PUTBACK; 876 PUTBACK;
593 } 877 }
594 878
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 879 return !!SvTRUE (ERRSV);
610} 880}
611 881
882static void
612static void req_destroy (aio_req req) 883req_destroy (aio_req req)
613{ 884{
614 if (req->self) 885 if (req->self)
615 { 886 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 887 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 888 SvREFCNT_dec (req->self);
618 } 889 }
619 890
620 SvREFCNT_dec (req->sv1); 891 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 892 SvREFCNT_dec (req->sv2);
893 SvREFCNT_dec (req->sv3);
894 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 895 SvREFCNT_dec (req->callback);
623 896
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 897 free (req);
628} 898}
629 899
900static void
630static void req_cancel_subs (aio_req grp) 901req_cancel_subs (aio_req grp)
631{ 902{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 903 if (grp->type != EIO_GROUP)
635 return; 904 return;
636 905
637 SvREFCNT_dec (grp->sv2); 906 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 907 grp->sv2 = 0;
639 908
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 909 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 910}
643 911
644static void req_cancel (aio_req req) 912ecb_cold
645{
646 req->flags |= FLAG_CANCELLED;
647
648 req_cancel_subs (req);
649}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656
657static void 913static void
658create_respipe (void) 914create_respipe (void)
659{ 915{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe)) 916 if (s_epipe_renew (&respipe))
669#endif
670 croak ("unable to initialize result pipe"); 917 croak ("IO::AIO: unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693} 918}
694 919
695X_THREAD_PROC (aio_proc); 920static void
696 921poll_wait (void)
697static void start_thread (void)
698{ 922{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait (void)
791{
792 fd_set rfd;
793
794 while (nreqs) 923 while (eio_nreqs ())
795 { 924 {
796 int size; 925 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 926
927 X_LOCK (EIO_POOL->reslock);
798 size = res_queue.size; 928 size = EIO_POOL->res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 929 X_UNLOCK (EIO_POOL->reslock);
800 930
801 if (size) 931 if (size)
802 return; 932 return;
803 933
804 maybe_start_thread (); 934 etp_maybe_start_thread (EIO_POOL);
805 935
806 FD_ZERO (&rfd); 936 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 937 }
811} 938}
812 939
813static int poll_cb (void) 940static int
941poll_cb (void)
814{ 942{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 943 for (;;)
828 { 944 {
829 for (;;) 945 int res = eio_poll ();
946
947 if (res > 0)
948 croak (0);
949
950 if (!max_outstanding || max_outstanding > eio_nreqs ())
951 return res;
952
953 poll_wait ();
954 }
955}
956
957ecb_cold
958static void
959reinit (void)
960{
961 create_respipe ();
962
963 if (eio_init (want_poll, done_poll) < 0)
964 croak ("IO::AIO: unable to initialise eio library");
965}
966
967/*****************************************************************************/
968
969static SV *
970get_cb (SV *cb_sv)
971{
972 SvGETMAGIC (cb_sv);
973 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
974}
975
976ecb_noinline
977static aio_req ecb_noinline
978dreq (SV *callback)
979{
980 SV *cb_cv;
981 aio_req req;
982 int req_pri = next_pri;
983 next_pri = EIO_PRI_DEFAULT;
984
985 cb_cv = get_cb (callback);
986
987 req = calloc (sizeof (*req), 1);
988 if (!req)
989 croak ("out of memory during eio_req allocation");
990
991 req->callback = SvREFCNT_inc (cb_cv);
992 req->pri = req_pri;
993
994 return req;
995}
996
997#define dREQ \
998 aio_req req = dreq (callback); \
999
1000#define REQ_SEND \
1001 PUTBACK; \
1002 req_submit (req); \
1003 SPAGAIN; \
1004 \
1005 if (GIMME_V != G_VOID) \
1006 XPUSHs (req_sv (req, aio_req_stash));
1007
1008/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1009ecb_inline
1010void
1011req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1012{
1013 if (expect_false (SvROK (path)))
1014 {
1015 SV *rv = SvRV (path);
1016 SV *wdob;
1017
1018 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
830 { 1019 {
831 maybe_start_thread (); 1020 path = AvARRAY (rv)[1];
1021 wdob = AvARRAY (rv)[0];
832 1022
833 X_LOCK (reslock); 1023 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 1024 {
838 --npending; 1025 *wd = SvAIO_WD (wdob);
839 1026 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 } 1027 }
861 else 1028 else
862 { 1029 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 } 1030 }
1031 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1032 {
1033 *wd = (aio_wd)(long)SvIVX (rv);
1034 *wdsv = SvREFCNT_inc_NN (rv);
1035 *ptr = ".";
1036 return; /* path set to "." */
1037 }
1038 else
1039 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1040 }
886 1041
887 if (nreqs <= max_outstanding) 1042 *pathsv = newSVsv (path);
1043 *ptr = SvPVbyte_nolen (*pathsv);
1044}
1045
1046ecb_noinline
1047static void
1048req_set_path1 (aio_req req, SV *path)
1049{
1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1051}
1052
1053ecb_noinline
1054static void
1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1056{
1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1058
1059 switch (SvTYPE (rv))
1060 {
1061 case SVt_PVIO:
1062 case SVt_PVLV:
1063 case SVt_PVGV:
1064 req->type = type_fh;
1065 req->sv1 = newSVsv (fh_or_path);
1066 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
888 break; 1067 break;
889 1068
890 poll_wait (); 1069 default:
891 1070 req->type = type_path;
892 ++maxreqs; 1071 req_set_path1 (req, fh_or_path);
1072 break;
893 } 1073 }
894
895 unblock_sig ();
896 return count;
897} 1074}
898 1075
899/*****************************************************************************/ 1076/*****************************************************************************/
900/* work around various missing functions */
901 1077
902#if !HAVE_PREADWRITE 1078static void
903# define pread aio_pread 1079ts_set (struct timespec *ts, NV value)
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{ 1080{
915 ssize_t res; 1081 ts->tv_sec = value;
916 off_t ooffset; 1082 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926} 1083}
927 1084
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1085static NV
1086ts_get (const struct timespec *ts)
929{ 1087{
930 ssize_t res; 1088 return ts->tv_sec + ts->tv_nsec * 1e-9;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941} 1089}
942#endif
943 1090
944#ifndef HAVE_FUTIMES 1091/*****************************************************************************/
945 1092
946# define utimes(path,times) aio_utimes (path, times) 1093XS(boot_IO__AIO) ecb_cold;
947# define futimes(fd,times) aio_futimes (fd, times)
948 1094
949int aio_utimes (const char *filename, const struct timeval times[2]) 1095MODULE = IO::AIO PACKAGE = IO::AIO
950{
951 if (times)
952 {
953 struct utimbuf buf;
954 1096
955 buf.actime = times[0].tv_sec; 1097PROTOTYPES: ENABLE
956 buf.modtime = times[1].tv_sec;
957 1098
958 return utime (filename, &buf); 1099BOOT:
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{ 1100{
966 errno = ENOSYS; 1101 static const struct {
967 return -1; 1102 const char *name;
968} 1103 IV iv;
1104 } *civ, const_iv[] = {
1105# define const_niv(name, value) { # name, (IV) value },
1106# define const_iv(name) { # name, (IV) name },
1107# define const_eio(name) { # name, (IV) EIO_ ## name },
969 1108
970#endif 1109 /* you have to re-run ./gendef0 after adding/removing any constants here */
1110 /* the first block can be undef if missing */
1111 const_iv (ENOSYS)
1112 const_iv (EXDEV)
1113 const_iv (EBADR)
971 1114
972#if !HAVE_FDATASYNC 1115 /* for lseek */
973# define fdatasync fsync 1116 const_iv (SEEK_DATA)
974#endif 1117 const_iv (SEEK_HOLE)
975 1118
976#if !HAVE_READAHEAD 1119 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1120 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1121 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1122 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1123 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1124 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
978 1125
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1126 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
980{ 1127 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
981 size_t todo = count; 1128 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
982 dBUF; 1129 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1130 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
983 1131
984 while (todo > 0) 1132 /* the second block will be 0 when missing */
985 { 1133 const_iv (O_ACCMODE)
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987 1134
988 pread (fd, aio_buf, len, offset); 1135 const_iv (O_RDONLY)
989 offset += len; 1136 const_iv (O_WRONLY)
990 todo -= len; 1137 const_iv (O_RDWR)
991 } 1138 const_iv (O_CREAT)
1139 const_iv (O_TRUNC)
1140 const_iv (O_EXCL)
1141 const_iv (O_APPEND)
992 1142
993 errno = 0; 1143 const_iv (O_ASYNC)
994 return count; 1144 const_iv (O_DIRECT)
995} 1145 const_iv (O_NOATIME)
996 1146
997#endif 1147 const_iv (O_CLOEXEC)
1148 const_iv (O_NOCTTY)
1149 const_iv (O_NOFOLLOW)
1150 const_iv (O_NONBLOCK)
1151 const_iv (O_EXEC)
1152 const_iv (O_SEARCH)
1153 const_iv (O_DIRECTORY)
1154 const_iv (O_DSYNC)
1155 const_iv (O_RSYNC)
1156 const_iv (O_SYNC)
1157 const_iv (O_PATH)
1158 const_iv (O_TMPFILE)
1159 const_iv (O_TTY_INIT)
998 1160
999#if !HAVE_READDIR_R 1161 const_iv (S_IFIFO)
1000# define readdir_r aio_readdir_r 1162 const_iv (S_IFCHR)
1163 const_iv (S_IFBLK)
1164 const_iv (S_IFLNK)
1165 const_iv (S_IFREG)
1166 const_iv (S_IFDIR)
1167 const_iv (S_IFWHT)
1168 const_iv (S_IFSOCK)
1169 const_iv (S_IFMT)
1001 1170
1002static mutex_t readdirlock = X_MUTEX_INIT; 1171 const_iv (ST_RDONLY)
1003 1172 const_iv (ST_NOSUID)
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 1173 const_iv (ST_NODEV)
1005{ 1174 const_iv (ST_NOEXEC)
1006 X_DIRENT *e; 1175 const_iv (ST_SYNCHRONOUS)
1007 int errorno; 1176 const_iv (ST_MANDLOCK)
1177 const_iv (ST_WRITE)
1178 const_iv (ST_APPEND)
1179 const_iv (ST_IMMUTABLE)
1180 const_iv (ST_NOATIME)
1181 const_iv (ST_NODIRATIME)
1182 const_iv (ST_RELATIME)
1008 1183
1009 X_LOCK (readdirlock); 1184 const_iv (PROT_NONE)
1185 const_iv (PROT_EXEC)
1186 const_iv (PROT_READ)
1187 const_iv (PROT_WRITE)
1010 1188
1011 e = readdir (dirp); 1189 const_iv (MAP_PRIVATE)
1012 errorno = errno; 1190 const_iv (MAP_SHARED)
1191 const_iv (MAP_FIXED)
1192 const_iv (MAP_ANONYMOUS)
1013 1193
1014 if (e) 1194 /* linuxish */
1015 { 1195 const_iv (MAP_LOCKED)
1016 *res = ent; 1196 const_iv (MAP_NORESERVE)
1017 strcpy (ent->d_name, e->d_name); 1197 const_iv (MAP_POPULATE)
1018 } 1198 const_iv (MAP_NONBLOCK)
1019 else 1199 const_iv (MAP_GROWSDOWN)
1020 *res = 0; 1200 const_iv (MAP_32BIT)
1201 const_iv (MAP_HUGETLB)
1202 const_iv (MAP_STACK)
1021 1203
1022 X_UNLOCK (readdirlock); 1204 const_iv (MREMAP_MAYMOVE)
1205 const_iv (MREMAP_FIXED)
1023 1206
1024 errno = errorno; 1207 const_iv (MSG_CMSG_CLOEXEC)
1025 return e ? 0 : -1; 1208 const_iv (SOCK_CLOEXEC)
1026}
1027#endif
1028 1209
1029/* sendfile always needs emulation */ 1210 const_iv (F_DUPFD_CLOEXEC)
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033 1211
1034 if (!count) 1212 const_iv (F_ADD_SEALS)
1035 return 0; 1213 const_iv (F_GET_SEALS)
1214 const_iv (F_SEAL_SEAL)
1215 const_iv (F_SEAL_SHRINK)
1216 const_iv (F_SEAL_GROW)
1217 const_iv (F_SEAL_WRITE)
1036 1218
1037#if HAVE_SENDFILE 1219 const_iv (F_OFD_GETLK)
1038# if __linux 1220 const_iv (F_OFD_SETLK)
1039 res = sendfile (ofd, ifd, &offset, count); 1221 const_iv (F_OFD_GETLKW)
1040 1222
1041# elif __freebsd 1223 const_iv (FIFREEZE)
1042 /* 1224 const_iv (FITHAW)
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts 1225 const_iv (FITRIM)
1044 * wasted on making it similar to other I/O functions. 1226 const_iv (FICLONE)
1045 */ 1227 const_iv (FICLONERANGE)
1228 const_iv (FIDEDUPERANGE)
1229
1230 const_iv (FS_IOC_GETFLAGS)
1231 const_iv (FS_IOC_SETFLAGS)
1232 const_iv (FS_IOC_GETVERSION)
1233 const_iv (FS_IOC_SETVERSION)
1234 const_iv (FS_IOC_FIEMAP)
1235 const_iv (FS_IOC_FSGETXATTR)
1236 const_iv (FS_IOC_FSSETXATTR)
1237 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1238 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1239 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1240
1241 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1242
1243 const_iv (FS_SECRM_FL)
1244 const_iv (FS_UNRM_FL)
1245 const_iv (FS_COMPR_FL)
1246 const_iv (FS_SYNC_FL)
1247 const_iv (FS_IMMUTABLE_FL)
1248 const_iv (FS_APPEND_FL)
1249 const_iv (FS_NODUMP_FL)
1250 const_iv (FS_NOATIME_FL)
1251 const_iv (FS_DIRTY_FL)
1252 const_iv (FS_COMPRBLK_FL)
1253 const_iv (FS_NOCOMP_FL)
1254 const_iv (FS_ENCRYPT_FL)
1255 const_iv (FS_BTREE_FL)
1256 const_iv (FS_INDEX_FL)
1257 const_iv (FS_JOURNAL_DATA_FL)
1258 const_iv (FS_NOTAIL_FL)
1259 const_iv (FS_DIRSYNC_FL)
1260 const_iv (FS_TOPDIR_FL)
1261 const_iv (FS_FL_USER_MODIFIABLE)
1262
1263 const_iv (FS_XFLAG_REALTIME)
1264 const_iv (FS_XFLAG_PREALLOC)
1265 const_iv (FS_XFLAG_IMMUTABLE)
1266 const_iv (FS_XFLAG_APPEND)
1267 const_iv (FS_XFLAG_SYNC)
1268 const_iv (FS_XFLAG_NOATIME)
1269 const_iv (FS_XFLAG_NODUMP)
1270 const_iv (FS_XFLAG_RTINHERIT)
1271 const_iv (FS_XFLAG_PROJINHERIT)
1272 const_iv (FS_XFLAG_NOSYMLINKS)
1273 const_iv (FS_XFLAG_EXTSIZE)
1274 const_iv (FS_XFLAG_EXTSZINHERIT)
1275 const_iv (FS_XFLAG_NODEFRAG)
1276 const_iv (FS_XFLAG_FILESTREAM)
1277 const_iv (FS_XFLAG_DAX)
1278 const_iv (FS_XFLAG_HASATTR)
1279
1280 const_iv (FIEMAP_FLAG_SYNC)
1281 const_iv (FIEMAP_FLAG_XATTR)
1282 const_iv (FIEMAP_FLAGS_COMPAT)
1283 const_iv (FIEMAP_EXTENT_LAST)
1284 const_iv (FIEMAP_EXTENT_UNKNOWN)
1285 const_iv (FIEMAP_EXTENT_DELALLOC)
1286 const_iv (FIEMAP_EXTENT_ENCODED)
1287 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1288 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1289 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1290 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1291 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1292 const_iv (FIEMAP_EXTENT_MERGED)
1293 const_iv (FIEMAP_EXTENT_SHARED)
1294
1295 const_iv (SPLICE_F_MOVE)
1296 const_iv (SPLICE_F_NONBLOCK)
1297 const_iv (SPLICE_F_MORE)
1298 const_iv (SPLICE_F_GIFT)
1299
1300 const_iv (EFD_CLOEXEC)
1301 const_iv (EFD_NONBLOCK)
1302 const_iv (EFD_SEMAPHORE)
1303
1304 const_iv (MFD_CLOEXEC)
1305 const_iv (MFD_ALLOW_SEALING)
1306 const_iv (MFD_HUGETLB)
1307
1308 const_iv (CLOCK_REALTIME)
1309 const_iv (CLOCK_MONOTONIC)
1310 const_iv (CLOCK_BOOTTIME)
1311 const_iv (CLOCK_REALTIME_ALARM)
1312 const_iv (CLOCK_BOOTTIME_ALARM)
1313
1314 const_iv (TFD_NONBLOCK)
1315 const_iv (TFD_CLOEXEC)
1316
1317 const_iv (TFD_TIMER_ABSTIME)
1318 const_iv (TFD_TIMER_CANCEL_ON_SET)
1319
1320 const_iv (STATX_TYPE)
1321 const_iv (STATX_MODE)
1322 const_iv (STATX_NLINK)
1323 const_iv (STATX_UID)
1324 const_iv (STATX_GID)
1325 const_iv (STATX_ATIME)
1326 const_iv (STATX_MTIME)
1327 const_iv (STATX_CTIME)
1328 const_iv (STATX_INO)
1329 const_iv (STATX_SIZE)
1330 const_iv (STATX_BLOCKS)
1331 const_iv (STATX_BASIC_STATS)
1332 const_iv (STATX_ALL)
1333 const_iv (STATX_BTIME)
1334 const_iv (STATX_ATTR_COMPRESSED)
1335 const_iv (STATX_ATTR_IMMUTABLE)
1336 const_iv (STATX_ATTR_APPEND)
1337 const_iv (STATX_ATTR_NODUMP)
1338 const_iv (STATX_ATTR_ENCRYPTED)
1339 const_iv (STATX_ATTR_AUTOMOUNT)
1340
1341 const_iv (AT_FDCWD)
1342 const_iv (AT_SYMLINK_NOFOLLOW)
1343 const_iv (AT_EACCESS)
1344 const_iv (AT_REMOVEDIR)
1345 const_iv (AT_SYMLINK_FOLLOW)
1346 const_iv (AT_NO_AUTOMOUNT)
1347 const_iv (AT_EMPTY_PATH)
1348 const_iv (AT_STATX_SYNC_TYPE)
1349 const_iv (AT_STATX_AS_STAT)
1350 const_iv (AT_STATX_FORCE_SYNC)
1351 const_iv (AT_STATX_DONT_SYNC)
1352 const_iv (AT_RECURSIVE)
1353
1354 const_iv (OPEN_TREE_CLONE)
1355
1356 const_iv (FSOPEN_CLOEXEC)
1357
1358 const_iv (FSPICK_CLOEXEC)
1359 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1360 const_iv (FSPICK_NO_AUTOMOUNT)
1361 const_iv (FSPICK_EMPTY_PATH)
1362
1363 const_iv (MOVE_MOUNT_F_SYMLINKS)
1364 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1365 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1366 const_iv (MOVE_MOUNT_T_SYMLINKS)
1367 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1368 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1369
1370 /* waitid */
1371 const_iv (P_PID)
1372 const_iv (P_PIDFD)
1373 const_iv (P_PGID)
1374 const_iv (P_ALL)
1375
1376 /* these are libeio constants, and are independent of gendef0 */
1377 const_eio (SEEK_SET)
1378 const_eio (SEEK_CUR)
1379 const_eio (SEEK_END)
1380
1381 const_eio (MCL_FUTURE)
1382 const_eio (MCL_CURRENT)
1383 const_eio (MCL_ONFAULT)
1384
1385 const_eio (MS_ASYNC)
1386 const_eio (MS_INVALIDATE)
1387 const_eio (MS_SYNC)
1388
1389 const_eio (MT_MODIFY)
1390
1391 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1392 const_eio (SYNC_FILE_RANGE_WRITE)
1393 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1394
1395 const_eio (FALLOC_FL_KEEP_SIZE)
1396 const_eio (FALLOC_FL_PUNCH_HOLE)
1397 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1398 const_eio (FALLOC_FL_ZERO_RANGE)
1399 const_eio (FALLOC_FL_INSERT_RANGE)
1400 const_eio (FALLOC_FL_UNSHARE_RANGE)
1401
1402 const_eio (RENAME_NOREPLACE)
1403 const_eio (RENAME_EXCHANGE)
1404 const_eio (RENAME_WHITEOUT)
1405
1406 const_eio (READDIR_DENTS)
1407 const_eio (READDIR_DIRS_FIRST)
1408 const_eio (READDIR_STAT_ORDER)
1409 const_eio (READDIR_FOUND_UNKNOWN)
1410
1411 const_eio (DT_UNKNOWN)
1412 const_eio (DT_FIFO)
1413 const_eio (DT_CHR)
1414 const_eio (DT_DIR)
1415 const_eio (DT_BLK)
1416 const_eio (DT_REG)
1417 const_eio (DT_LNK)
1418 const_eio (DT_SOCK)
1419 const_eio (DT_WHT)
1420 };
1421
1422 aio_stash = gv_stashpv ("IO::AIO" , 1);
1423 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1424 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1425 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1426
1427 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1428 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1429
1430 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1431
1432 /* allocate dummy pipe fd for aio_close */
1046 { 1433 {
1047 off_t sbytes; 1434 int pipefd [2];
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049 1435
1050 if (res < 0 && sbytes) 1436 if (
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1437#ifdef _WIN32
1052 res = sbytes; 1438 _pipe (pipefd, 1, _O_BINARY) < 0
1439#else
1440 pipe (pipefd) < 0
1441 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1442#endif
1443 || close (pipefd [1]) < 0
1444 )
1445 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1446
1447 close_fd = pipefd [0];
1053 } 1448 }
1054 1449
1055# elif __hpux 1450 reinit ();
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120} 1451}
1121 1452
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183static int
1184aio_close (int fd)
1185{
1186 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1187
1188 X_LOCK (wrklock);
1189
1190 if (close_pipe < 0)
1191 {
1192 int pipefd [2];
1193
1194 if (pipe (pipefd) < 0
1195 || close (pipefd [1]) < 0
1196 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1197 {
1198 X_UNLOCK (wrklock);
1199 return -1;
1200 }
1201
1202 close_pipe = pipefd [0];
1203 }
1204
1205 X_UNLOCK (wrklock);
1206
1207 return dup2 (close_pipe, fd) < 0 ? -1 : 0;
1208}
1209
1210/*****************************************************************************/
1211
1212X_THREAD_PROC (aio_proc)
1213{
1214 aio_req req;
1215 struct timespec ts;
1216 worker *self = (worker *)thr_arg;
1217
1218 /* try to distribute timeouts somewhat randomly */
1219 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1220
1221 for (;;)
1222 {
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224
1225 X_LOCK (reqlock);
1226
1227 for (;;)
1228 {
1229 self->req = req = reqq_shift (&req_queue);
1230
1231 if (req)
1232 break;
1233
1234 ++idle;
1235
1236 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1237 == ETIMEDOUT)
1238 {
1239 if (idle > max_idle)
1240 {
1241 --idle;
1242 X_UNLOCK (reqlock);
1243 X_LOCK (wrklock);
1244 --started;
1245 X_UNLOCK (wrklock);
1246 goto quit;
1247 }
1248
1249 /* we are allowed to idle, so do so without any timeout */
1250 X_COND_WAIT (reqwait, reqlock);
1251 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1252 }
1253
1254 --idle;
1255 }
1256
1257 --nready;
1258
1259 X_UNLOCK (reqlock);
1260
1261 errno = 0; /* strictly unnecessary */
1262
1263 if (!(req->flags & FLAG_CANCELLED))
1264 switch (req->type)
1265 {
1266 case REQ_READ: req->result = req->offs >= 0
1267 ? pread (req->int1, req->ptr1, req->size, req->offs)
1268 : read (req->int1, req->ptr1, req->size); break;
1269 case REQ_WRITE: req->result = req->offs >= 0
1270 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1271 : write (req->int1, req->ptr1, req->size); break;
1272
1273 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1274 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1275
1276 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1277 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1278 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1279
1280 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1281 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1282 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1283 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1284 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1285 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1286
1287 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1288 case REQ_CLOSE: req->result = aio_close (req->int1); break;
1289 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1290 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1291 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1292 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1293 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1294 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1295 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1296 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1297
1298 case REQ_SYNC: req->result = 0; sync (); break;
1299 case REQ_FSYNC: req->result = fsync (req->int1); break;
1300 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1301
1302 case REQ_READDIR: scandir_ (req, self); break;
1303
1304 case REQ_BUSY:
1305#ifdef _WIN32
1306 Sleep (req->nv1 * 1000.);
1307#else
1308 {
1309 struct timeval tv;
1310
1311 tv.tv_sec = req->nv1;
1312 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1313
1314 req->result = select (0, 0, 0, 0, &tv);
1315 }
1316#endif
1317 break;
1318
1319 case REQ_UTIME:
1320 case REQ_FUTIME:
1321 {
1322 struct timeval tv[2];
1323 struct timeval *times;
1324
1325 if (req->nv1 != -1. || req->nv2 != -1.)
1326 {
1327 tv[0].tv_sec = req->nv1;
1328 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1329 tv[1].tv_sec = req->nv2;
1330 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1331
1332 times = tv;
1333 }
1334 else
1335 times = 0;
1336
1337
1338 req->result = req->type == REQ_FUTIME
1339 ? futimes (req->int1, times)
1340 : utimes (req->ptr1, times);
1341 }
1342
1343 case REQ_GROUP:
1344 case REQ_NOP:
1345 break;
1346
1347 case REQ_QUIT:
1348 goto quit;
1349
1350 default:
1351 req->result = -1;
1352 break;
1353 }
1354
1355 req->errorno = errno;
1356
1357 X_LOCK (reslock);
1358
1359 ++npending;
1360
1361 if (!reqq_push (&res_queue, req))
1362 {
1363 /* write a dummy byte to the pipe so fh becomes ready */
1364 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1365
1366 /* optionally signal the main thread asynchronously */
1367 if (main_sig)
1368 pthread_kill (main_tid, main_sig);
1369 }
1370
1371 self->req = 0;
1372 worker_clear (self);
1373
1374 X_UNLOCK (reslock);
1375 }
1376
1377quit:
1378 X_LOCK (wrklock);
1379 worker_free (self);
1380 X_UNLOCK (wrklock);
1381
1382 return 0;
1383}
1384
1385/*****************************************************************************/
1386
1387static void atfork_prepare (void)
1388{
1389 X_LOCK (wrklock);
1390 X_LOCK (reqlock);
1391 X_LOCK (reslock);
1392#if !HAVE_PREADWRITE
1393 X_LOCK (preadwritelock);
1394#endif
1395#if !HAVE_READDIR_R
1396 X_LOCK (readdirlock);
1397#endif
1398}
1399
1400static void atfork_parent (void)
1401{
1402#if !HAVE_READDIR_R
1403 X_UNLOCK (readdirlock);
1404#endif
1405#if !HAVE_PREADWRITE
1406 X_UNLOCK (preadwritelock);
1407#endif
1408 X_UNLOCK (reslock);
1409 X_UNLOCK (reqlock);
1410 X_UNLOCK (wrklock);
1411}
1412
1413static void atfork_child (void)
1414{
1415 aio_req prv;
1416
1417 while (prv = reqq_shift (&req_queue))
1418 req_destroy (prv);
1419
1420 while (prv = reqq_shift (&res_queue))
1421 req_destroy (prv);
1422
1423 while (wrk_first.next != &wrk_first)
1424 {
1425 worker *wrk = wrk_first.next;
1426
1427 if (wrk->req)
1428 req_destroy (wrk->req);
1429
1430 worker_clear (wrk);
1431 worker_free (wrk);
1432 }
1433
1434 started = 0;
1435 idle = 0;
1436 nreqs = 0;
1437 nready = 0;
1438 npending = 0;
1439
1440 create_respipe ();
1441
1442 atfork_parent ();
1443}
1444
1445#define dREQ \
1446 aio_req req; \
1447 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \
1449 \
1450 if (SvOK (callback) && !SvROK (callback)) \
1451 croak ("callback must be undef or of reference type"); \
1452 \
1453 Newz (0, req, 1, aio_cb); \
1454 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \
1456 \
1457 req->callback = newSVsv (callback); \
1458 req->pri = req_pri
1459
1460#define REQ_SEND \
1461 req_send (req); \
1462 \
1463 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1465
1466MODULE = IO::AIO PACKAGE = IO::AIO
1467
1468PROTOTYPES: ENABLE
1469
1470BOOT:
1471{
1472 stash = gv_stashpv ("IO::AIO", 1);
1473
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1478 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1479#ifdef _WIN32
1480 X_MUTEX_CHECK (wrklock);
1481 X_MUTEX_CHECK (reslock);
1482 X_MUTEX_CHECK (reqlock);
1483 X_MUTEX_CHECK (reqwait);
1484 X_MUTEX_CHECK (preadwritelock);
1485 X_MUTEX_CHECK (readdirlock);
1486
1487 X_COND_CHECK (reqwait);
1488#else
1489 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1490 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1491#endif
1492
1493 create_respipe ();
1494
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1496}
1497
1498void 1453void
1454reinit ()
1455 PROTOTYPE:
1456
1457void
1499max_poll_reqs (int nreqs) 1458max_poll_reqs (unsigned int nreqs)
1500 PROTOTYPE: $ 1459 PROTOTYPE: $
1501 CODE: 1460 CODE:
1502 max_poll_reqs = nreqs; 1461 eio_set_max_poll_reqs (nreqs);
1503 1462
1504void 1463void
1505max_poll_time (double nseconds) 1464max_poll_time (double nseconds)
1506 PROTOTYPE: $ 1465 PROTOTYPE: $
1507 CODE: 1466 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 1467 eio_set_max_poll_time (nseconds);
1509 1468
1510void 1469void
1511min_parallel (int nthreads) 1470min_parallel (unsigned int nthreads)
1512 PROTOTYPE: $
1513
1514void
1515max_parallel (int nthreads)
1516 PROTOTYPE: $
1517
1518void
1519max_idle (int nthreads)
1520 PROTOTYPE: $ 1471 PROTOTYPE: $
1521 CODE: 1472 CODE:
1522 set_max_idle (nthreads); 1473 eio_set_min_parallel (nthreads);
1523 1474
1524int 1475void
1525max_outstanding (int maxreqs) 1476max_parallel (unsigned int nthreads)
1526 PROTOTYPE: $ 1477 PROTOTYPE: $
1527 CODE: 1478 CODE:
1528 RETVAL = max_outstanding; 1479 eio_set_max_parallel (nthreads);
1480
1481void
1482max_idle (unsigned int nthreads)
1483 PROTOTYPE: $
1484 CODE:
1485 eio_set_max_idle (nthreads);
1486
1487void
1488idle_timeout (unsigned int seconds)
1489 PROTOTYPE: $
1490 CODE:
1491 eio_set_idle_timeout (seconds);
1492
1493void
1494max_outstanding (unsigned int maxreqs)
1495 PROTOTYPE: $
1496 CODE:
1529 max_outstanding = maxreqs; 1497 max_outstanding = maxreqs;
1530 OUTPUT:
1531 RETVAL
1532 1498
1533void 1499void
1534aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1500aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1535 PROTOTYPE: $$$;$
1536 PPCODE: 1501 PPCODE:
1537{ 1502{
1538 dREQ; 1503 dREQ;
1539 1504
1505 req->type = EIO_WD_OPEN;
1506 req_set_path1 (req, pathname);
1507
1508 REQ_SEND;
1509}
1510
1511void
1512aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1540 req->type = REQ_OPEN; 1517 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 1518 req_set_path1 (req, pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 1519 req->int1 = flags;
1544 req->mode = mode; 1520 req->int2 = mode;
1545 1521
1546 REQ_SEND; 1522 REQ_SEND;
1547} 1523}
1548 1524
1549void 1525void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1526aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1551 PROTOTYPE: $;$
1552 ALIAS: 1527 ALIAS:
1553 aio_fsync = REQ_FSYNC 1528 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 1529 aio_fdatasync = EIO_FDATASYNC
1530 aio_syncfs = EIO_SYNCFS
1555 PPCODE: 1531 PPCODE:
1556{ 1532{
1533 int fd = s_fileno_croak (fh, 0);
1557 dREQ; 1534 dREQ;
1558 1535
1559 req->type = ix; 1536 req->type = ix;
1560 req->sv1 = newSVsv (fh); 1537 req->sv1 = newSVsv (fh);
1561 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1538 req->int1 = fd;
1562 1539
1563 REQ_SEND (req); 1540 REQ_SEND;
1564} 1541}
1565 1542
1566void 1543void
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 1544aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1568 PROTOTYPE: $;$
1569 PPCODE: 1545 PPCODE:
1570{ 1546{
1547 int fd = s_fileno_croak (fh, 0);
1571 dREQ; 1548 dREQ;
1572 1549
1550 req->type = EIO_SYNC_FILE_RANGE;
1551 req->sv1 = newSVsv (fh);
1552 req->int1 = fd;
1553 req->offs = offset;
1554 req->size = nbytes;
1555 req->int2 = flags;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1562 PPCODE:
1563{
1564 int fd = s_fileno_croak (fh, 0);
1565 dREQ;
1566
1567 req->type = EIO_FALLOCATE;
1568 req->sv1 = newSVsv (fh);
1569 req->int1 = fd;
1570 req->int2 = mode;
1571 req->offs = offset;
1572 req->size = len;
1573
1574 REQ_SEND;
1575}
1576
1577void
1578aio_close (SV *fh, SV *callback = &PL_sv_undef)
1579 PPCODE:
1580{
1581 int fd = s_fileno_croak (fh, 0);
1582 dREQ;
1583#if 0
1584 /* partially duplicate logic in s_fileno */
1585 SvGETMAGIC (fh);
1586
1587 if (SvROK (fh))
1588 {
1589 fh = SvRV (fh);
1590 SvGETMAGIC (fh);
1591 }
1592
1593 if (SvTYPE (fh) == SVt_PVGV)
1594 {
1595 /* perl filehandle */
1596 PerlIOUnix_refcnt_inc (fd);
1597 do_close ((GV *)fh, 1);
1598
1573 req->type = REQ_CLOSE; 1599 req->type = EIO_CLOSE;
1574 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1600 req->int1 = fd;
1601 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1602 }
1603 else
1604#endif
1605 {
1606 /* fd number */
1607 req->type = EIO_DUP2;
1608 req->int1 = close_fd;
1609 req->sv2 = newSVsv (fh);
1610 req->int2 = fd;
1611 }
1575 1612
1576 REQ_SEND (req); 1613 REQ_SEND;
1577} 1614}
1578 1615
1579void 1616void
1617aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1618 PPCODE:
1619{
1620 int fd = s_fileno_croak (fh, 0);
1621 dREQ;
1622
1623 req->type = EIO_SEEK;
1624 req->sv1 = newSVsv (fh);
1625 req->int1 = fd;
1626 req->offs = SvVAL64 (offset);
1627 req->int2 = whence;
1628
1629 REQ_SEND;
1630}
1631
1632void
1580aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1633aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1581 ALIAS: 1634 ALIAS:
1582 aio_read = REQ_READ 1635 aio_read = EIO_READ
1583 aio_write = REQ_WRITE 1636 aio_write = EIO_WRITE
1584 PROTOTYPE: $$$$$;$
1585 PPCODE: 1637 PPCODE:
1586{ 1638{
1587 STRLEN svlen; 1639 STRLEN svlen;
1640 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1588 char *svptr = SvPVbyte (data, svlen); 1641 char *svptr = SvPVbyte (data, svlen);
1589 UV len = SvUV (length); 1642 UV len = SvUV (length);
1590 1643
1591 SvUPGRADE (data, SVt_PV);
1592 SvPOK_on (data);
1593
1594 if (dataoffset < 0) 1644 if (dataoffset < 0)
1595 dataoffset += svlen; 1645 dataoffset += svlen;
1596 1646
1597 if (dataoffset < 0 || dataoffset > svlen) 1647 if (dataoffset < 0 || dataoffset > svlen)
1598 croak ("dataoffset outside of data scalar"); 1648 croak ("dataoffset outside of data scalar");
1599 1649
1600 if (ix == REQ_WRITE) 1650 if (ix == EIO_WRITE)
1601 { 1651 {
1602 /* write: check length and adjust. */ 1652 /* write: check length and adjust. */
1603 if (!SvOK (length) || len + dataoffset > svlen) 1653 if (!SvOK (length) || len + dataoffset > svlen)
1604 len = svlen - dataoffset; 1654 len = svlen - dataoffset;
1605 } 1655 }
1606 else 1656 else
1607 { 1657 {
1608 /* read: grow scalar as necessary */ 1658 /* read: check type and grow scalar as necessary */
1659 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1609 svptr = SvGROW (data, len + dataoffset + 1); 1660 svptr = sv_grow (data, len + dataoffset + 1);
1661 else if (SvCUR (data) < len + dataoffset)
1662 croak ("length + dataoffset outside of scalar, and cannot grow");
1610 } 1663 }
1611
1612 if (len < 0)
1613 croak ("length must not be negative");
1614 1664
1615 { 1665 {
1616 dREQ; 1666 dREQ;
1617 1667
1618 req->type = ix; 1668 req->type = ix;
1619 req->sv1 = newSVsv (fh); 1669 req->sv1 = newSVsv (fh);
1620 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1670 req->int1 = fd;
1621 : IoOFP (sv_2io (fh)));
1622 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1671 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1623 req->size = len; 1672 req->size = len;
1624 req->sv2 = SvREFCNT_inc (data); 1673 req->sv2 = SvREFCNT_inc (data);
1625 req->ptr1 = (char *)svptr + dataoffset; 1674 req->ptr2 = (char *)svptr + dataoffset;
1626 req->stroffset = dataoffset; 1675 req->stroffset = dataoffset;
1627 1676
1628 if (!SvREADONLY (data)) 1677 if (!SvREADONLY (data))
1629 { 1678 {
1630 SvREADONLY_on (data); 1679 SvREADONLY_on (data);
… …
1634 REQ_SEND; 1683 REQ_SEND;
1635 } 1684 }
1636} 1685}
1637 1686
1638void 1687void
1639aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1688aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1640 PROTOTYPE: $$;$ 1689 ALIAS:
1690 aio_ioctl = EIO_IOCTL
1691 aio_fcntl = EIO_FCNTL
1641 PPCODE: 1692 PPCODE:
1642{ 1693{
1643 SV *data; 1694 int fd = s_fileno_croak (fh, 0);
1644 dREQ; 1695 char *svptr;
1645 1696
1646 data = newSV (NAME_MAX); 1697 if (SvPOK (arg) || !SvNIOK (arg))
1647 SvPOK_on (data);
1648
1649 req->type = REQ_READLINK;
1650 req->sv1 = newSVsv (path);
1651 req->ptr2 = SvPVbyte_nolen (req->sv1);
1652 req->sv2 = data;
1653 req->ptr1 = SvPVbyte_nolen (data);
1654
1655 REQ_SEND;
1656}
1657
1658void
1659aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$$;$
1661 PPCODE:
1662{
1663 dREQ;
1664
1665 req->type = REQ_SENDFILE;
1666 req->sv1 = newSVsv (out_fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1668 req->sv2 = newSVsv (in_fh);
1669 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1670 req->offs = SvVAL64 (in_offset);
1671 req->size = length;
1672
1673 REQ_SEND;
1674}
1675
1676void
1677aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1678 PROTOTYPE: $$$;$
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->type = REQ_READAHEAD;
1684 req->sv1 = newSVsv (fh);
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1686 req->offs = SvVAL64 (offset);
1687 req->size = length;
1688
1689 REQ_SEND;
1690}
1691
1692void
1693aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1694 ALIAS:
1695 aio_stat = REQ_STAT
1696 aio_lstat = REQ_LSTAT
1697 PPCODE:
1698{
1699 dREQ;
1700
1701 req->ptr2 = malloc (sizeof (Stat_t));
1702 if (!req->ptr2)
1703 { 1698 {
1704 req_destroy (req); 1699 STRLEN svlen;
1705 croak ("out of memory during aio_stat statdata allocation"); 1700 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1706 } 1701#ifdef IOCPARM_LEN
1702 STRLEN need = IOCPARM_LEN (request);
1703#else
1704 STRLEN need = 256;
1705#endif
1707 1706
1708 req->flags |= FLAG_PTR2_FREE; 1707 if (svlen < need)
1709 req->sv1 = newSVsv (fh_or_path); 1708 svptr = SvGROW (arg, need);
1710
1711 if (SvPOK (fh_or_path))
1712 {
1713 req->type = ix;
1714 req->ptr1 = SvPVbyte_nolen (req->sv1);
1715 } 1709 }
1716 else 1710 else
1711 svptr = (char *)SvIV (arg);
1712
1717 { 1713 {
1714 dREQ;
1715
1718 req->type = REQ_FSTAT; 1716 req->type = ix;
1719 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1717 req->sv1 = newSVsv (fh);
1718 req->int1 = fd;
1719 req->int2 = (long)request;
1720 req->sv2 = SvREFCNT_inc (arg);
1721 req->ptr2 = svptr;
1722
1723 REQ_SEND;
1720 } 1724 }
1725}
1726
1727void
1728aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_readlink = EIO_READLINK
1731 aio_realpath = EIO_REALPATH
1732 PPCODE:
1733{
1734 dREQ;
1735
1736 req->type = ix;
1737 req_set_path1 (req, pathname);
1721 1738
1722 REQ_SEND; 1739 REQ_SEND;
1723} 1740}
1724 1741
1725void 1742void
1743aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1744 PPCODE:
1745{
1746 int ifd = s_fileno_croak (in_fh , 0);
1747 int ofd = s_fileno_croak (out_fh, 1);
1748 dREQ;
1749
1750 req->type = EIO_SENDFILE;
1751 req->sv1 = newSVsv (out_fh);
1752 req->int1 = ofd;
1753 req->sv2 = newSVsv (in_fh);
1754 req->int2 = ifd;
1755 req->offs = in_offset;
1756 req->size = length;
1757
1758 REQ_SEND;
1759}
1760
1761void
1762aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1763 PPCODE:
1764{
1765 int fd = s_fileno_croak (fh, 0);
1766 dREQ;
1767
1768 req->type = EIO_READAHEAD;
1769 req->sv1 = newSVsv (fh);
1770 req->int1 = fd;
1771 req->offs = offset;
1772 req->size = length;
1773
1774 REQ_SEND;
1775}
1776
1777void
1778aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1779 ALIAS:
1780 aio_stat = EIO_STAT
1781 aio_lstat = EIO_LSTAT
1782 aio_statvfs = EIO_STATVFS
1783 PPCODE:
1784{
1785 dREQ;
1786
1787 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1788
1789 REQ_SEND;
1790}
1791
1792void
1793st_xtime ()
1794 ALIAS:
1795 st_atime = 0x01
1796 st_mtime = 0x02
1797 st_ctime = 0x04
1798 st_btime = 0x08
1799 st_xtime = 0x0f
1800 PPCODE:
1801 EXTEND (SP, 4);
1802 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1803 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1804 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1805 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1806
1807void
1808st_xtimensec ()
1809 ALIAS:
1810 st_atimensec = 0x01
1811 st_mtimensec = 0x02
1812 st_ctimensec = 0x04
1813 st_btimensec = 0x08
1814 st_xtimensec = 0x0f
1815 st_btimesec = 0x10
1816 st_gen = 0x20
1817 PPCODE:
1818 EXTEND (SP, 4);
1819 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1820 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1821 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1822 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1823 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1824 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1825
1826UV
1827major (UV dev)
1828 ALIAS:
1829 minor = 1
1830 CODE:
1831 RETVAL = ix ? minor (dev) : major (dev);
1832 OUTPUT:
1833 RETVAL
1834
1835UV
1836makedev (UV maj, UV min)
1837 CODE:
1838 RETVAL = makedev (maj, min);
1839 OUTPUT:
1840 RETVAL
1841
1842void
1726aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1843aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1727 PPCODE: 1844 PPCODE:
1728{ 1845{
1729 dREQ; 1846 dREQ;
1730 1847
1731 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1848 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1732 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1849 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1733 req->sv1 = newSVsv (fh_or_path); 1850 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1734
1735 if (SvPOK (fh_or_path))
1736 {
1737 req->type = REQ_UTIME;
1738 req->ptr1 = SvPVbyte_nolen (req->sv1);
1739 }
1740 else
1741 {
1742 req->type = REQ_FUTIME;
1743 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1744 }
1745 1851
1746 REQ_SEND; 1852 REQ_SEND;
1747} 1853}
1748 1854
1749void 1855void
1750aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1856aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1751 PPCODE: 1857 PPCODE:
1752{ 1858{
1753 dREQ; 1859 dREQ;
1754 1860
1755 req->sv1 = newSVsv (fh_or_path);
1756 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1861 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1757 1862 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1758 if (SvPOK (fh_or_path))
1759 {
1760 req->type = REQ_TRUNCATE;
1761 req->ptr1 = SvPVbyte_nolen (req->sv1);
1762 }
1763 else
1764 {
1765 req->type = REQ_FTRUNCATE;
1766 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1767 }
1768 1863
1769 REQ_SEND; 1864 REQ_SEND;
1770} 1865}
1771 1866
1772void 1867void
1773aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1868aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1774 PPCODE: 1869 PPCODE:
1775{ 1870{
1776 dREQ; 1871 dREQ;
1777 1872
1778 req->mode = mode; 1873 req->int2 = mode;
1779 req->sv1 = newSVsv (fh_or_path); 1874 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1780
1781 if (SvPOK (fh_or_path))
1782 {
1783 req->type = REQ_CHMOD;
1784 req->ptr1 = SvPVbyte_nolen (req->sv1);
1785 }
1786 else
1787 {
1788 req->type = REQ_FCHMOD;
1789 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1790 }
1791 1875
1792 REQ_SEND; 1876 REQ_SEND;
1793} 1877}
1794 1878
1795void 1879void
1796aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1880aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1797 PPCODE: 1881 PPCODE:
1798{ 1882{
1799 dREQ; 1883 dREQ;
1800 1884
1801 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1885 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1802 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1886 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1803 req->sv1 = newSVsv (fh_or_path); 1887 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1804
1805 if (SvPOK (fh_or_path))
1806 {
1807 req->type = REQ_CHOWN;
1808 req->ptr1 = SvPVbyte_nolen (req->sv1);
1809 }
1810 else
1811 {
1812 req->type = REQ_FCHOWN;
1813 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1814 }
1815 1888
1816 REQ_SEND; 1889 REQ_SEND;
1817} 1890}
1818 1891
1819void 1892void
1893aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1894 PPCODE:
1895{
1896 dREQ;
1897
1898 req->type = EIO_READDIR;
1899 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1900
1901 if (flags & EIO_READDIR_DENTS)
1902 req->int1 |= EIO_READDIR_CUSTOM2;
1903
1904 req_set_path1 (req, pathname);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->type = EIO_MKDIR;
1916 req->int2 = mode;
1917 req_set_path1 (req, pathname);
1918
1919 REQ_SEND;
1920}
1921
1922void
1820aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1923aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1821 ALIAS: 1924 ALIAS:
1822 aio_unlink = REQ_UNLINK 1925 aio_unlink = EIO_UNLINK
1823 aio_rmdir = REQ_RMDIR 1926 aio_rmdir = EIO_RMDIR
1824 aio_readdir = REQ_READDIR 1927 aio_readdir = EIO_READDIR
1825 PPCODE: 1928 PPCODE:
1826{ 1929{
1827 dREQ; 1930 dREQ;
1828 1931
1829 req->type = ix; 1932 req->type = ix;
1830 req->sv1 = newSVsv (pathname); 1933 req_set_path1 (req, pathname);
1831 req->ptr1 = SvPVbyte_nolen (req->sv1);
1832 1934
1833 REQ_SEND; 1935 REQ_SEND;
1834} 1936}
1835 1937
1836void 1938void
1837aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1838 PPCODE:
1839{
1840 dREQ;
1841
1842 req->type = REQ_MKDIR;
1843 req->sv1 = newSVsv (pathname);
1844 req->ptr1 = SvPVbyte_nolen (req->sv1);
1845 req->mode = mode;
1846
1847 REQ_SEND;
1848}
1849
1850void
1851aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1939aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1852 ALIAS: 1940 ALIAS:
1853 aio_link = REQ_LINK 1941 aio_link = EIO_LINK
1854 aio_symlink = REQ_SYMLINK 1942 aio_symlink = EIO_SYMLINK
1855 aio_rename = REQ_RENAME 1943 aio_rename = EIO_RENAME
1856 PPCODE: 1944 PPCODE:
1857{ 1945{
1946 eio_wd wd2 = 0;
1858 dREQ; 1947 dREQ;
1859 1948
1860 req->type = ix; 1949 req->type = ix;
1861 req->sv2 = newSVsv (oldpath); 1950 req_set_path1 (req, oldpath);
1862 req->ptr2 = SvPVbyte_nolen (req->sv2); 1951 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1863 req->sv1 = newSVsv (newpath); 1952 req->int3 = (long)wd2;
1864 req->ptr1 = SvPVbyte_nolen (req->sv1);
1865 1953
1866 REQ_SEND; 1954 REQ_SEND;
1867} 1955}
1868 1956
1869void 1957void
1870aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1958aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1871 PPCODE: 1959 PPCODE:
1872{ 1960{
1961 eio_wd wd2 = 0;
1873 dREQ; 1962 dREQ;
1874 1963
1875 req->type = REQ_MKNOD; 1964 req->type = EIO_RENAME;
1876 req->sv1 = newSVsv (pathname); 1965 req_set_path1 (req, oldpath);
1877 req->ptr1 = SvPVbyte_nolen (req->sv1); 1966 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1878 req->mode = (mode_t)mode; 1967 req->int2 = flags;
1879 req->offs = dev; 1968 req->int3 = (long)wd2;
1880 1969
1881 REQ_SEND; 1970 REQ_SEND;
1882} 1971}
1883 1972
1884void 1973void
1885aio_busy (double delay, SV *callback=&PL_sv_undef) 1974aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1886 PPCODE: 1975 PPCODE:
1887{ 1976{
1888 dREQ; 1977 dREQ;
1978
1979 req->type = EIO_MKNOD;
1980 req->int2 = (mode_t)mode;
1981 req->offs = dev;
1982 req_set_path1 (req, pathname);
1983
1984 REQ_SEND;
1985}
1889 1986
1987void
1988aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1989 ALIAS:
1990 aio_mtouch = EIO_MTOUCH
1991 aio_msync = EIO_MSYNC
1992 PPCODE:
1993{
1994 STRLEN svlen;
1995 char *svptr = SvPVbyte (data, svlen);
1996 UV len = SvUV (length);
1997
1998 if (flags < 0)
1999 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2000
2001 if (offset < 0)
2002 offset += svlen;
2003
2004 if (offset < 0 || offset > svlen)
2005 croak ("offset outside of scalar");
2006
2007 if (!SvOK (length) || len + offset > svlen)
2008 len = svlen - offset;
2009
2010 {
2011 dREQ;
2012
2013 req->type = ix;
2014 req->sv2 = SvREFCNT_inc (data);
2015 req->ptr2 = (char *)svptr + offset;
2016 req->size = len;
2017 req->int1 = flags;
2018
2019 REQ_SEND;
2020 }
2021}
2022
2023void
2024aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2025 PPCODE:
2026{
2027 STRLEN svlen;
2028 char *svptr = SvPVbyte (data, svlen);
2029 UV len = SvUV (length);
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = EIO_MLOCK;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047
2048 REQ_SEND;
2049 }
2050}
2051
2052void
2053aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2054 PPCODE:
2055{
2056 dREQ;
2057
2058 req->type = EIO_MLOCKALL;
2059 req->int1 = flags;
2060
2061 REQ_SEND;
2062}
2063
2064void
2065aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2066 PPCODE:
2067{
2068 int fd = s_fileno_croak (fh, 0);
2069 dREQ;
2070
2071 req->type = EIO_CUSTOM;
2072 req->sv1 = newSVsv (fh);
2073 req->int1 = fd;
2074
2075 req->feed = fiemap;
2076#if HAVE_FIEMAP
2077 /* keep our fingers crossed that the next two types are 64 bit */
2078 req->offs = start;
2079 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2080 req->int2 = flags;
2081 req->int3 = SvOK (count) ? SvIV (count) : -1;
2082#endif
2083
2084 REQ_SEND;
2085}
2086
2087void
2088aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2089 PPCODE:
2090{
2091 char *svptr = 0;
2092
2093 sv_clear_foreign (data);
2094
2095 if (length) /* known length, directly read into scalar */
2096 {
2097 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2098 svptr = sv_grow (data, length + 1);
2099 else if (SvCUR (data) < length)
2100 croak ("length outside of scalar, and cannot grow");
2101 else
2102 svptr = SvPVbyte_nolen (data);
2103 }
2104
2105 {
2106 dREQ;
2107
2108 req->type = EIO_SLURP;
2109 req_set_path1 (req, pathname);
2110 req->offs = offset;
2111 req->size = length;
2112 req->sv2 = SvREFCNT_inc (data);
2113 req->ptr2 = svptr;
2114
2115 if (!SvREADONLY (data))
2116 {
2117 SvREADONLY_on (data);
2118 req->flags |= FLAG_SV2_RO_OFF;
2119 }
2120
2121 REQ_SEND;
2122 }
2123}
2124
2125void
2126aio_busy (double delay, SV *callback = &PL_sv_undef)
2127 PPCODE:
2128{
2129 dREQ;
2130
1890 req->type = REQ_BUSY; 2131 req->type = EIO_BUSY;
1891 req->nv1 = delay < 0. ? 0. : delay; 2132 req->nv1 = delay < 0. ? 0. : delay;
1892 2133
1893 REQ_SEND; 2134 REQ_SEND;
1894} 2135}
1895 2136
1896void 2137void
1897aio_group (SV *callback=&PL_sv_undef) 2138aio_group (SV *callback = &PL_sv_undef)
1898 PROTOTYPE: ;$
1899 PPCODE: 2139 PPCODE:
1900{ 2140{
1901 dREQ; 2141 dREQ;
1902 2142
1903 req->type = REQ_GROUP; 2143 req->type = EIO_GROUP;
1904 2144
2145 PUTBACK;
1905 req_send (req); 2146 req_submit (req);
2147 SPAGAIN;
2148
1906 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2149 XPUSHs (req_sv (req, aio_grp_stash));
1907} 2150}
1908 2151
1909void 2152void
1910aio_nop (SV *callback=&PL_sv_undef) 2153aio_nop (SV *callback = &PL_sv_undef)
1911 ALIAS: 2154 ALIAS:
1912 aio_nop = REQ_NOP 2155 aio_nop = EIO_NOP
1913 aio_sync = REQ_SYNC 2156 aio_sync = EIO_SYNC
1914 PPCODE: 2157 PPCODE:
1915{ 2158{
1916 dREQ; 2159 dREQ;
1917 2160
1918 req->type = ix; 2161 req->type = ix;
1919 2162
1920 REQ_SEND; 2163 REQ_SEND;
1921} 2164}
1922 2165
1923int 2166int
1924aioreq_pri (int pri = 0) 2167aioreq_pri (int pri = NO_INIT)
1925 PROTOTYPE: ;$
1926 CODE: 2168 CODE:
1927 RETVAL = next_pri - PRI_BIAS; 2169 RETVAL = next_pri;
1928 if (items > 0) 2170 if (items > 0)
1929 { 2171 {
1930 if (pri < PRI_MIN) pri = PRI_MIN; 2172 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1931 if (pri > PRI_MAX) pri = PRI_MAX; 2173 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1932 next_pri = pri + PRI_BIAS; 2174 next_pri = pri;
1933 } 2175 }
1934 OUTPUT: 2176 OUTPUT:
1935 RETVAL 2177 RETVAL
1936 2178
1937void 2179void
1938aioreq_nice (int nice = 0) 2180aioreq_nice (int nice = 0)
1939 CODE: 2181 CODE:
1940 nice = next_pri - nice; 2182 nice = next_pri - nice;
1941 if (nice < PRI_MIN) nice = PRI_MIN; 2183 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1942 if (nice > PRI_MAX) nice = PRI_MAX; 2184 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1943 next_pri = nice + PRI_BIAS; 2185 next_pri = nice;
1944 2186
1945void 2187void
1946flush () 2188flush ()
1947 PROTOTYPE:
1948 CODE: 2189 CODE:
1949 while (nreqs) 2190 while (eio_nreqs ())
1950 { 2191 {
1951 poll_wait (); 2192 poll_wait ();
1952 poll_cb (); 2193 poll_cb ();
1953 } 2194 }
1954 2195
1955int 2196int
1956poll() 2197poll ()
1957 PROTOTYPE:
1958 CODE: 2198 CODE:
1959 poll_wait (); 2199 poll_wait ();
1960 RETVAL = poll_cb (); 2200 RETVAL = poll_cb ();
1961 OUTPUT: 2201 OUTPUT:
1962 RETVAL 2202 RETVAL
1963 2203
1964int 2204int
1965poll_fileno() 2205poll_fileno ()
1966 PROTOTYPE:
1967 CODE: 2206 CODE:
1968 RETVAL = respipe [0]; 2207 RETVAL = s_epipe_fd (&respipe);
1969 OUTPUT: 2208 OUTPUT:
1970 RETVAL 2209 RETVAL
1971 2210
1972int 2211int
1973poll_cb(...) 2212poll_cb (...)
1974 PROTOTYPE: 2213 PROTOTYPE:
1975 CODE: 2214 CODE:
1976 RETVAL = poll_cb (); 2215 RETVAL = poll_cb ();
1977 OUTPUT: 2216 OUTPUT:
1978 RETVAL 2217 RETVAL
1979 2218
1980void 2219void
1981poll_wait() 2220poll_wait ()
2221 CODE:
2222 poll_wait ();
2223
2224int
2225nreqs ()
2226 CODE:
2227 RETVAL = eio_nreqs ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232nready ()
2233 CODE:
2234 RETVAL = eio_nready ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239npending ()
2240 CODE:
2241 RETVAL = eio_npending ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246nthreads ()
2247 CODE:
2248 RETVAL = eio_nthreads ();
2249 OUTPUT:
2250 RETVAL
2251
2252int
2253fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2254 CODE:
2255 RETVAL = posix_fadvise (fh, offset, length, advice);
2256 OUTPUT:
2257 RETVAL
2258
2259IV
2260sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2261 CODE:
2262 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2263 OUTPUT:
2264 RETVAL
2265
2266void
2267mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2268 PPCODE:
2269 sv_clear_foreign (scalar);
2270{
2271 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2272 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2273 if (addr == (void *)-1)
2274 XSRETURN_NO;
2275
2276 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2277
2278 if (!(prot & PROT_WRITE))
2279 SvREADONLY_on (scalar);
2280
2281 XSRETURN_YES;
2282}
2283
2284void
2285munmap (SV *scalar)
2286 CODE:
2287 sv_clear_foreign (scalar);
2288
2289SV *
2290mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2291 CODE:
2292{
2293 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2294 void *new;
2295
2296 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2297 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2298
2299 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2300
2301 RETVAL = &PL_sv_no;
2302
2303 if (new != (void *)-1)
2304 {
2305 RETVAL = new == (void *)mg->mg_ptr
2306 ? newSVpvn ("0 but true", 10)
2307 : &PL_sv_yes;
2308
2309 mg->mg_ptr = (char *)new;
2310 mg->mg_obj = (SV *)new_length;
2311
2312 SvPVX (scalar) = mg->mg_ptr;
2313 SvCUR_set (scalar, new_length);
2314 }
2315}
2316 OUTPUT:
2317 RETVAL
2318
2319int
2320madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2321 ALIAS:
2322 mprotect = 1
2323 CODE:
2324{
2325 STRLEN svlen;
2326 void *addr = SvPVbyte (scalar, svlen);
2327 STRLEN len = SvUV (length);
2328
2329 if (offset < 0)
2330 offset += svlen;
2331
2332 if (offset < 0 || offset > svlen)
2333 croak ("offset outside of scalar");
2334
2335 if (!SvOK (length) || len + offset > svlen)
2336 len = svlen - offset;
2337
2338 addr = (void *)(((intptr_t)addr) + offset);
2339 eio_page_align (&addr, &len);
2340
2341 switch (ix)
2342 {
2343 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2344 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2345 }
2346}
2347 OUTPUT:
2348 RETVAL
2349
2350int
2351munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2352 CODE:
2353{
2354 STRLEN svlen;
2355 void *addr = SvPVbyte (scalar, svlen);
2356 size_t len = SvUV (length);
2357
2358 if (offset < 0)
2359 offset += svlen;
2360
2361 if (offset < 0 || offset > svlen)
2362 croak ("offset outside of scalar");
2363
2364 if (!SvOK (length) || len + offset > svlen)
2365 len = svlen - offset;
2366
2367 addr = (void *)(((intptr_t)addr) + offset);
2368 eio_page_align (&addr, &len);
2369#if _POSIX_MEMLOCK_RANGE
2370 RETVAL = munlock (addr, len);
2371#else
2372 RETVAL = EIO_ENOSYS ();
2373#endif
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379mlockall (int flags)
2380 PROTOTYPE: $;
2381 CODE:
2382 RETVAL = eio_mlockall_sync (flags);
2383 OUTPUT:
2384 RETVAL
2385
2386int
2387munlockall ()
2388 CODE:
2389#if _POSIX_MEMLOCK
2390 munlockall ();
2391#else
2392 RETVAL = EIO_ENOSYS ();
2393#endif
2394 OUTPUT:
2395 RETVAL
2396
2397int
2398statx (SV8 *pathname, int flags, UV mask)
2399 CODE:
2400{
2401 /* undocumented, and might go away, and anyway, should use eio_statx */
2402 SV *wdsv = 0;
2403 SV *pathsv = 0;
2404 eio_wd wd = EIO_CWD;
2405 void *ptr;
2406 int res;
2407
2408 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2409 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2410
2411 SvREFCNT_dec (pathsv);
2412 SvREFCNT_dec (wdsv);
2413}
2414 OUTPUT:
2415 RETVAL
2416
2417U32
2418stx_mode ()
1982 PROTOTYPE: 2419 PROTOTYPE:
1983 CODE: 2420 CODE:
1984 poll_wait (); 2421#if HAVE_STATX
2422 RETVAL = stx.stx_mode;
2423#else
2424 XSRETURN_UNDEF;
2425#endif
2426 OUTPUT:
2427 RETVAL
1985 2428
2429#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2430#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2431#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2432#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2433#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2434#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2435#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2436#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2437#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2438#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2439#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2440#define STATX_OFFSET_size statx_offsetof (stx_size)
2441#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2442#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2443#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2444#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2445#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2446#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2447
2448U32
2449stx_mask ()
2450 PROTOTYPE:
2451 ALIAS:
2452 stx_mask = STATX_OFFSET_mask
2453 stx_blksize = STATX_OFFSET_blksize
2454 stx_nlink = STATX_OFFSET_nlink
2455 stx_uid = STATX_OFFSET_uid
2456 stx_gid = STATX_OFFSET_gid
2457 stx_rdev_major = STATX_OFFSET_rdev_major
2458 stx_rdev_minor = STATX_OFFSET_rdev_minor
2459 stx_dev_major = STATX_OFFSET_dev_major
2460 stx_dev_minor = STATX_OFFSET_dev_minor
2461 CODE:
2462#if HAVE_STATX
2463 RETVAL = *(__u32 *)((char *)&stx + ix);
2464#else
2465 XSRETURN_UNDEF;
2466#endif
2467 OUTPUT:
2468 RETVAL
2469
2470VAL64
2471stx_attributes ()
2472 PROTOTYPE:
2473 ALIAS:
2474 stx_attributes = STATX_OFFSET_attributes
2475 stx_ino = STATX_OFFSET_ino
2476 stx_size = STATX_OFFSET_size
2477 stx_blocks = STATX_OFFSET_blocks
2478 stx_attributes_mask = STATX_OFFSET_attributes_mask
2479 CODE:
2480#if HAVE_STATX
2481 RETVAL = *(__u64 *)((char *)&stx + ix);
2482#else
2483 XSRETURN_UNDEF;
2484#endif
2485 OUTPUT:
2486 RETVAL
2487
2488NV
2489stx_atime ()
2490 PROTOTYPE:
2491 ALIAS:
2492 stx_atime = STATX_OFFSET_atime
2493 stx_btime = STATX_OFFSET_btime
2494 stx_ctime = STATX_OFFSET_ctime
2495 stx_mtime = STATX_OFFSET_mtime
2496 CODE:
2497#if HAVE_STATX
2498 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2499 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2500#else
2501 XSRETURN_UNDEF;
2502#endif
2503 OUTPUT:
2504 RETVAL
2505
2506VAL64
2507stx_atimesec ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_atimesec = STATX_OFFSET_atime
2511 stx_btimesec = STATX_OFFSET_btime
2512 stx_ctimesec = STATX_OFFSET_ctime
2513 stx_mtimesec = STATX_OFFSET_mtime
2514 CODE:
2515#if HAVE_STATX
2516 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2517 RETVAL = ts->tv_sec;
2518#else
2519 XSRETURN_UNDEF;
2520#endif
2521 OUTPUT:
2522 RETVAL
2523
2524U32
2525stx_atimensec ()
2526 PROTOTYPE:
2527 ALIAS:
2528 stx_atimensec = STATX_OFFSET_atime
2529 stx_btimensec = STATX_OFFSET_btime
2530 stx_ctimensec = STATX_OFFSET_ctime
2531 stx_mtimensec = STATX_OFFSET_mtime
2532 CODE:
2533#if HAVE_STATX
2534 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2535 RETVAL = ts->tv_nsec;
2536#else
2537 RETVAL = 0;
2538#endif
2539 OUTPUT:
2540 RETVAL
2541
1986void 2542void
1987setsig (int signum = SIGIO) 2543accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2544 PPCODE:
2545{
2546 SV *retval;
2547#if HAVE_ACCEPT4
2548 socklen_t salen_ = salen ? salen + 1 : 0;
2549
2550 if (salen)
2551 {
2552 sv_upgrade (sockaddr, SVt_PV);
2553 sv_grow (sockaddr, salen_);
2554 }
2555
2556 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2557
2558 retval = newmortalFH (res, O_RDWR);
2559
2560 if (res >= 0 && salen > 0)
2561 {
2562 if (salen_ > salen + 1)
2563 salen_ = salen + 1;
2564
2565 SvPOK_only (sockaddr);
2566 SvCUR_set (sockaddr, salen_);
2567 }
2568#else
2569 errno = ENOSYS;
2570 retval = &PL_sv_undef;
2571#endif
2572 XPUSHs (retval);
2573}
2574
2575ssize_t
2576splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2577 CODE:
2578{
2579#if HAVE_LINUX_SPLICE
2580 loff_t off_in_, off_out_;
2581 RETVAL = splice (
2582 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2583 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2584 length, flags
2585 );
2586#else
2587 RETVAL = EIO_ENOSYS ();
2588#endif
2589}
2590 OUTPUT:
2591 RETVAL
2592
2593ssize_t
2594tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2595 CODE:
2596#if HAVE_LINUX_SPLICE
2597 RETVAL = tee (rfh, wfh, length, flags);
2598#else
2599 RETVAL = EIO_ENOSYS ();
2600#endif
2601 OUTPUT:
2602 RETVAL
2603
2604int
2605pipesize (aio_rfd rfh, int new_size = -1)
2606 PROTOTYPE: $;$
2607 CODE:
2608#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2609 if (new_size >= 0)
2610 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2611 else
2612 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2613#else
2614 errno = ENOSYS;
2615 RETVAL = -1;
2616#endif
2617 OUTPUT:
2618 RETVAL
2619
2620void
2621pipe2 (int flags = 0)
1988 PROTOTYPE: ;$ 2622 PROTOTYPE: ;$
1989 CODE:
1990{
1991 if (block_sig_level)
1992 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1993
1994 X_LOCK (reslock);
1995 main_tid = pthread_self ();
1996 main_sig = signum;
1997 X_UNLOCK (reslock);
1998
1999 if (main_sig && npending)
2000 pthread_kill (main_tid, main_sig);
2001}
2002
2003void
2004aio_block (SV *cb)
2005 PROTOTYPE: &
2006 PPCODE: 2623 PPCODE:
2007{ 2624{
2008 int count; 2625 int fd[2];
2626 int res;
2009 2627
2010 block_sig (); 2628 if (flags)
2011 PUSHMARK (SP); 2629#if HAVE_PIPE2
2012 PUTBACK; 2630 res = pipe2 (fd, flags);
2013 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2631#else
2014 unblock_sig (); 2632 res = (errno = ENOSYS, -1);
2633#endif
2634 else
2635 res = pipe (fd);
2015 2636
2016 if (SvTRUE (ERRSV)) 2637 if (!res)
2017 croak (0); 2638 {
2639 EXTEND (SP, 2);
2640 PUSHs (newmortalFH (fd[0], O_RDONLY));
2641 PUSHs (newmortalFH (fd[1], O_WRONLY));
2642 }
2643}
2018 2644
2019 XSRETURN (count); 2645void
2646pidfd_open (int pid, unsigned int flags = 0)
2647 PPCODE:
2648{
2649 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2650 int fd = syscall (SYS_pidfd_open, pid, flags);
2651 XPUSHs (newmortalFH (fd, O_RDWR));
2020} 2652}
2021 2653
2022int 2654int
2023nreqs() 2655pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2024 PROTOTYPE: 2656 PPCODE:
2657{
2658 int res;
2659 siginfo_t si = { 0 };
2660
2661 if (SvOK (siginfo))
2662 {
2663 HV *hv;
2664 SV **svp;
2665
2666 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2667 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2668
2669 hv = (HV *)SvRV (siginfo);
2670
2671 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2672 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2673 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2674 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2675 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2676 }
2677
2678 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2679 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2680
2681 XPUSHs (sv_2mortal (newSViv (res)));
2682}
2683
2684void
2685pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2689 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2694eventfd (unsigned int initval = 0, int flags = 0)
2695 PPCODE:
2696{
2697 int fd;
2698#if HAVE_EVENTFD
2699 fd = eventfd (initval, flags);
2700#else
2701 fd = (errno = ENOSYS, -1);
2702#endif
2703
2704 XPUSHs (newmortalFH (fd, O_RDWR));
2705}
2706
2707void
2708timerfd_create (int clockid, int flags = 0)
2709 PPCODE:
2710{
2711 int fd;
2712#if HAVE_TIMERFD
2713 fd = timerfd_create (clockid, flags);
2714#else
2715 fd = (errno = ENOSYS, -1);
2716#endif
2717
2718 XPUSHs (newmortalFH (fd, O_RDWR));
2719}
2720
2721void
2722timerfd_settime (SV *fh, int flags, NV interval, NV value)
2723 PPCODE:
2724{
2725 int fd = s_fileno_croak (fh, 0);
2726#if HAVE_TIMERFD
2727 int res;
2728 struct itimerspec its, ots;
2729
2730 ts_set (&its.it_interval, interval);
2731 ts_set (&its.it_value , value);
2732 res = timerfd_settime (fd, flags, &its, &ots);
2733
2734 if (!res)
2735 {
2736 EXTEND (SP, 2);
2737 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2738 PUSHs (newSVnv (ts_get (&ots.it_value)));
2739 }
2740#else
2741 errno = ENOSYS;
2742#endif
2743}
2744
2745void
2746timerfd_gettime (SV *fh)
2747 PPCODE:
2748{
2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2751 int res;
2752 struct itimerspec ots;
2753 res = timerfd_gettime (fd, &ots);
2754
2755 if (!res)
2756 {
2757 EXTEND (SP, 2);
2758 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2759 PUSHs (newSVnv (ts_get (&ots.it_value)));
2760 }
2761#else
2762 errno = ENOSYS;
2763#endif
2764}
2765
2766void
2767memfd_create (SV8 *pathname, int flags = 0)
2768 PPCODE:
2769{
2770 int fd;
2771#if HAVE_MEMFD_CREATE
2772 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2773#else
2774 fd = (errno = ENOSYS, -1);
2775#endif
2776
2777 XPUSHs (newmortalFH (fd, O_RDWR));
2778}
2779
2780UV
2781get_fdlimit ()
2025 CODE: 2782 CODE:
2026 RETVAL = nreqs; 2783#if HAVE_RLIMITS
2784 struct rlimit rl;
2785 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2786 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2787#endif
2788 XSRETURN_UNDEF;
2027 OUTPUT: 2789 OUTPUT:
2028 RETVAL 2790 RETVAL
2029 2791
2030int 2792void
2031nready() 2793min_fdlimit (UV limit = 0x7fffffffU)
2032 PROTOTYPE:
2033 CODE: 2794 CODE:
2034 RETVAL = get_nready (); 2795{
2035 OUTPUT: 2796#if HAVE_RLIMITS
2036 RETVAL 2797 struct rlimit rl;
2798 rlim_t orig_rlim_max;
2799 UV bit;
2037 2800
2038int 2801 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2039npending() 2802 goto fail;
2040 PROTOTYPE: 2803
2804 if (rl.rlim_cur == RLIM_INFINITY)
2805 XSRETURN_YES;
2806
2807 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2808
2809 if (rl.rlim_cur < limit)
2810 {
2811 rl.rlim_cur = limit;
2812
2813 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2814 rl.rlim_max = rl.rlim_cur;
2815 }
2816
2817 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_YES;
2819
2820 if (errno == EPERM)
2821 {
2822 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2823 /* our limit overflows a system-wide limit */
2824 /* try an adaptive algorithm, but do not lower the hardlimit */
2825 rl.rlim_max = 0;
2826 for (bit = 0x40000000U; bit; bit >>= 1)
2827 {
2828 rl.rlim_max |= bit;
2829 rl.rlim_cur = rl.rlim_max;
2830
2831 /* never decrease the hard limit */
2832 if (rl.rlim_max < orig_rlim_max)
2833 break;
2834
2835 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2836 rl.rlim_max &= ~bit; /* too high, remove bit again */
2837 }
2838
2839 /* now, raise the soft limit to the max permitted */
2840 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2841 {
2842 rl.rlim_cur = rl.rlim_max;
2843 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2844 errno = EPERM;
2845 }
2846 }
2847#endif
2848 fail:
2849 XSRETURN_UNDEF;
2850}
2851
2852void _on_next_submit (SV *cb)
2041 CODE: 2853 CODE:
2042 RETVAL = get_npending (); 2854 SvREFCNT_dec (on_next_submit);
2043 OUTPUT: 2855 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2044 RETVAL
2045 2856
2046int 2857PROTOTYPES: DISABLE
2047nthreads() 2858
2048 PROTOTYPE: 2859MODULE = IO::AIO PACKAGE = IO::AIO::WD
2860
2861BOOT:
2862{
2863 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2864 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2865}
2866
2867void
2868DESTROY (SV *self)
2049 CODE: 2869 CODE:
2050 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2870{
2051 RETVAL = started; 2871 aio_wd wd = SvAIO_WD (self);
2052 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 2872#if HAVE_AT
2053 OUTPUT: 2873 {
2054 RETVAL 2874 SV *callback = &PL_sv_undef;
2055 2875 dREQ; /* clobbers next_pri :/ */
2056PROTOTYPES: DISABLE 2876 next_pri = req->pri; /* restore next_pri */
2877 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2878 req->type = EIO_WD_CLOSE;
2879 req->wd = wd;
2880 REQ_SEND;
2881 }
2882#else
2883 eio_wd_close_sync (wd);
2884#endif
2885}
2057 2886
2058MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2887MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2059 2888
2060void 2889void
2061cancel (aio_req_ornot req) 2890cancel (aio_req_ornot req)
2062 CODE: 2891 CODE:
2063 req_cancel (req); 2892 eio_cancel (req);
2064 2893
2065void 2894void
2066cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2895cb (aio_req_ornot req, SV *callback = NO_INIT)
2067 CODE: 2896 PPCODE:
2897{
2898 if (GIMME_V != G_VOID)
2899 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2900
2901 if (items > 1)
2902 {
2903 SV *cb_cv = get_cb (callback);
2904
2068 SvREFCNT_dec (req->callback); 2905 SvREFCNT_dec (req->callback);
2069 req->callback = newSVsv (callback); 2906 req->callback = SvREFCNT_inc (cb_cv);
2907 }
2908}
2070 2909
2071MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2910MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2072 2911
2073void 2912void
2074add (aio_req grp, ...) 2913add (aio_req grp, ...)
2075 PPCODE: 2914 PPCODE:
2076{ 2915{
2077 int i; 2916 int i;
2078 aio_req req;
2079
2080 if (main_sig && !block_sig_level)
2081 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2082 2917
2083 if (grp->int1 == 2) 2918 if (grp->int1 == 2)
2084 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2919 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2085 2920
2086 for (i = 1; i < items; ++i ) 2921 for (i = 1; i < items; ++i )
2087 { 2922 {
2923 aio_req req;
2924
2088 if (GIMME_V != G_VOID) 2925 if (GIMME_V != G_VOID)
2089 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2926 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2090 2927
2091 req = SvAIO_REQ (ST (i)); 2928 req = SvAIO_REQ (ST (i));
2092 2929
2093 if (req) 2930 if (req)
2094 { 2931 eio_grp_add (grp, req);
2095 ++grp->size;
2096 req->grp = grp;
2097
2098 req->grp_prev = 0;
2099 req->grp_next = grp->grp_first;
2100
2101 if (grp->grp_first)
2102 grp->grp_first->grp_prev = req;
2103
2104 grp->grp_first = req;
2105 }
2106 } 2932 }
2107} 2933}
2108 2934
2109void 2935void
2110cancel_subs (aio_req_ornot req) 2936cancel_subs (aio_req_ornot req)
… …
2119 AV *av; 2945 AV *av;
2120 2946
2121 grp->errorno = errno; 2947 grp->errorno = errno;
2122 2948
2123 av = newAV (); 2949 av = newAV ();
2950 av_extend (av, items - 1);
2124 2951
2125 for (i = 1; i < items; ++i ) 2952 for (i = 1; i < items; ++i )
2126 av_push (av, newSVsv (ST (i))); 2953 av_push (av, newSVsv (ST (i)));
2127 2954
2128 SvREFCNT_dec (grp->sv1); 2955 SvREFCNT_dec (grp->sv1);
… …
2135 grp->errorno = errorno; 2962 grp->errorno = errorno;
2136 2963
2137void 2964void
2138limit (aio_req grp, int limit) 2965limit (aio_req grp, int limit)
2139 CODE: 2966 CODE:
2140 grp->int2 = limit; 2967 eio_grp_limit (grp, limit);
2141 aio_grp_feed (grp);
2142 2968
2143void 2969void
2144feed (aio_req grp, SV *callback=&PL_sv_undef) 2970feed (aio_req grp, SV *callback = &PL_sv_undef)
2145 CODE: 2971 CODE:
2146{ 2972{
2147 SvREFCNT_dec (grp->sv2); 2973 SvREFCNT_dec (grp->sv2);
2148 grp->sv2 = newSVsv (callback); 2974 grp->sv2 = newSVsv (callback);
2975 grp->feed = aio_grp_feed;
2149 2976
2150 if (grp->int2 <= 0) 2977 if (grp->int2 <= 0)
2151 grp->int2 = 2; 2978 grp->int2 = 2;
2152 2979
2153 aio_grp_feed (grp); 2980 eio_grp_limit (grp, grp->int2);
2154} 2981}
2155 2982

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