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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.108 by root, Thu Oct 4 12:50:35 2007 UTC vs.
Revision 1.295 by root, Mon Sep 5 00:03:32 2022 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
9
10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
8 13
9#include <stddef.h> 14#include <stddef.h>
10#include <stdlib.h> 15#include <stdlib.h>
11#include <errno.h> 16#include <errno.h>
12#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
13#include <sys/stat.h> 19#include <sys/stat.h>
14#include <limits.h> 20#include <limits.h>
15#include <fcntl.h> 21#include <fcntl.h>
16#include <sched.h> 22#include <sched.h>
17 23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
29# undef send 56 #undef send
30# undef recv 57 #undef recv
31# undef stat 58 #undef stat
59 #undef lstat
32# undef fstat 60 #undef fstat
33# define lstat stat
34# undef truncate 61 #undef truncate
35# undef ftruncate 62 #undef ftruncate
36# undef open 63 #undef open
64 #undef link
37# undef close 65 #undef close
38# undef unlink 66 #undef unlink
67 #undef mkdir
39# undef rmdir 68 #undef rmdir
40# undef rename 69 #undef rename
41# undef lseek 70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
42 81
43# define chown(a,b,c) (errno = ENOSYS, -1) 82 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 83 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 84
57#else 85#else
58 86
59# include "autoconf/config.h"
60# include <sys/time.h> 87 #include <sys/time.h>
61# include <sys/select.h> 88 #include <sys/select.h>
89 #include <sys/wait.h>
62# include <unistd.h> 90 #include <unistd.h>
63# include <utime.h> 91 #include <utime.h>
64# include <signal.h> 92 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 93
67#endif 94 #define EIO_STRUCT_STAT Stat_t
68 95
69#if HAVE_SENDFILE 96#endif
70# if __linux 97
71# include <sys/sendfile.h> 98/*****************************************************************************/
72# elif __freebsd 99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
73# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
74# include <sys/uio.h> 124# include <sys/uio.h>
75# elif __hpux 125#endif
76# include <sys/socket.h> 126
77# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
78# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
79# else 208# else
80# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 210# endif
82#endif 211#endif
83 212
84/* number of seconds after which idle threads exit */ 213#ifndef makedev
85#define IDLE_TIMEOUT 10 214# define makedev(maj,min) (((maj) << 8) | (min))
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
91 222
92/* buffer size for various temporary buffers */ 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
93#define AIO_BUFSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
94 227
95/* use NV for 32 bit perls as it allows larger offsets */ 228#if PAGESIZE <= 0
96#if IVSIZE >= 8 229# define PAGESIZE sysconf (_SC_PAGESIZE)
97# define SvVAL64 SvIV 230#endif
231
232/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
98#else 239#else
99# define SvVAL64 SvNV 240# define syscall(nr,...) (errno = ENOSYS, -1)
100#endif 241#endif
101 242
102static HV *stash; 243/*****************************************************************************/
103 244
104#define dBUF \ 245#if !_POSIX_MAPPED_FILES
105 char *aio_buf; \ 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
106 X_LOCK (wrklock); \ 247# define munmap(addr,length) EIO_ENOSYS ()
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 248#endif
108 X_UNLOCK (wrklock); \ 249
109 if (!aio_buf) \ 250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
110 return -1; 278 return 0;
279}
111 280
112typedef SV SV8; /* byte-sv, used for argument-checking */ 281static MGVTBL mmap_vtbl = {
113 282 0, 0, 0, 0, mmap_free
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 283};
131 284
132#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 287{
137 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
138 290
139 SV *callback; 291 SvREADONLY_off (sv);
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146 292
147 STRLEN stroffset; 293 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 295
153 unsigned char flags; 296 SvCUR_set (sv, 0);
154 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
155 299
156 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
158} aio_cb;
159 302
160enum { 303static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 304 0, 0, 0, 0, sysfree_free
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164}; 305};
165 306
166typedef aio_cb *aio_req; 307/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 308
169enum { 309/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 310ecb_noinline
171 PRI_MAX = 4, 311static void
172 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{ 313{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 314 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 315
190static thread_t main_tid; 316 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 318 ->mg_obj = (SV *)length;
193 319
194void block_sig () 320 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 321
198 if (block_sig_level++) 322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329}
330
331static void
332sv_clear_foreign (SV *sv)
333{
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
344
345/*****************************************************************************/
346
347static void
348fiemap (eio_req *req)
349{
350 req->result = -1;
351
352#if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
199 return; 368 return;
200 369
201 if (!main_sig) 370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 378 return;
203 379
204 sigemptyset (&ss); 380 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 381 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 383 goto done;
208 384
209void unblock_sig () 385 /* else we have to loop -
210{ 386 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
212 391
213 if (--block_sig_level) 392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 393
216 if (!main_sig) 394 for (;;)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 { 395 {
249 closedir (wrk->dirp); 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
250 wrk->dirp = 0; 397 char scratch[3072];
251 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
252 399
253 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
257 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 405
260static void worker_free (worker *wrk) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 407 return;
355 408
356 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
357 411
358 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
361
362 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 421 {
364 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 423
367 return req; 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
368 } 432 }
369 } 433 }
370 434
371 abort (); 435done:
372} 436 req->result = 0;
373 437
374static int poll_cb (); 438#else
375static int req_invoke (aio_req req); 439 errno = ENOSYS;
440#endif
441}
442
443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454#endif
455
456enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458};
459
460typedef eio_req *aio_req;
461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
463
464static SV *on_next_submit;
465static int next_pri = EIO_PRI_DEFAULT;
466static int max_outstanding;
467
468static s_epipe respipe;
469
376static void req_destroy (aio_req req); 470static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
378 472
473static void
474want_poll (void)
475{
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478}
479
480static void
481done_poll (void)
482{
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485}
486
379/* must be called at most once */ 487/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
381{ 491{
382 if (!req->self) 492 if (!req->self)
383 { 493 {
384 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 496 }
387 497
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 499}
390 500
391static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
392{ 510{
393 MAGIC *mg; 511 MAGIC *mg;
394 512
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
397 519
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 521
400 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
401} 523}
402 524
525static aio_wd
526SvAIO_WD (SV *sv)
527{
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534}
535
536static SV *
537newmortalFH (int fd, int flags)
538{
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559}
560
561static void
403static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
404{ 563{
405 block_sig (); 564 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 565 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 566 dSP;
414 567
415 ENTER; 568 ENTER;
416 SAVETMPS; 569 SAVETMPS;
417 PUSHMARK (SP); 570 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 572 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 574 SPAGAIN;
422 FREETMPS; 575 FREETMPS;
423 LEAVE; 576 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 577 }
434
435 unblock_sig ();
436} 578}
437 579
438static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
439{ 583{
440 --grp->size; 584 eio_submit (req);
441 585
442 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 587 {
448 block_sig (); 588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
449 590
450 if (!req_invoke (grp)) 591 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 592
457 req_destroy (grp); 593 PUSHMARK (SP);
458 unblock_sig (); 594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
459 } 596 }
460} 597}
461 598
599static int
462static int req_invoke (aio_req req) 600req_invoke (eio_req *req)
463{ 601{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 602 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 603 SvREADONLY_off (req->sv2);
468 604
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 605 if (!EIO_CANCELLED (req) && req->callback)
470 { 606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
471 ENTER; 611 ENTER;
472 SAVETMPS; 612 SAVETMPS;
473 PUSHMARK (SP); 613 PUSHMARK (SP);
474 EXTEND (SP, 1); 614 EXTEND (SP, 1);
475 615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
627 }
628
476 switch (req->type) 629 switch (req->type)
477 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
478 case REQ_READDIR: 635 case EIO_READDIR:
479 { 636 {
480 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
481 638
482 if (req->result >= 0) 639 if (req->result >= 0)
483 { 640 {
484 int i; 641 int i;
485 char *buf = req->ptr2; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 644 AV *av = newAV ();
487 645
488 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
489 647
490 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
491 { 649 {
492 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
494 av_store (av, i, sv); 674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
496 } 684 }
497 685
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 687 }
500 688
501 PUSHs (rv); 689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 693 }
503 break; 694 break;
504 695
505 case REQ_OPEN: 696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
506 { 702 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 703 SV *rv = &PL_sv_undef;
509 704
705#ifndef _WIN32
510 if (req->result >= 0) 706 if (req->result >= 0)
511 { 707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 709 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 711 * chooses to make it a struct.
515 int symlen;
516 712 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 713 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 715
520 symlen = snprintf ( 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result
526 );
527 717
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 729 }
730#endif
531 731
532 XPUSHs (fh); 732 PUSHs (rv);
533 } 733 }
734
534 break; 735 break;
535 736
536 case REQ_GROUP: 737 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
538 739
539 if (req->sv1) 740 if (req->sv1)
540 { 741 {
541 int i; 742 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
547 } 748 }
548 break; 749 break;
549 750
550 case REQ_NOP: 751 case EIO_NOP:
551 case REQ_BUSY: 752 case EIO_BUSY:
552 break; 753 break;
553 754
554 case REQ_READLINK: 755 case EIO_READLINK:
756 case EIO_REALPATH:
555 if (req->result > 0) 757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
556 { 813 {
557 SvCUR_set (req->sv2, req->result); 814#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845#endif
560 } 846 }
847 else
848 PUSHs (sv_result);
561 break; 849 break;
562 850
563 case REQ_STAT: 851#if 0
564 case REQ_LSTAT: 852 case EIO_CLOSE:
565 case REQ_FSTAT: 853 PerlIOUnix_refcnt_dec (req->int1);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break; 854 break;
855#endif
571 856
572 case REQ_READ: 857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 858 if (req->result > 0)
574 *SvEND (req->sv2) = 0; 859 SvIV_set (sv_result, 0);
575 PUSHs (sv_2mortal (newSViv (req->result))); 860 /* FALLTHROUGH */
576 break;
577 861
578 default: 862 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
580 break; 864 break;
581 } 865 }
582 866
583 errno = req->errorno; 867 errno = req->errorno;
584 868
585 PUTBACK; 869 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
588 877
589 FREETMPS; 878 FREETMPS;
590 LEAVE; 879 LEAVE;
880
881 PUTBACK;
591 } 882 }
592 883
593 if (req->grp)
594 {
595 aio_req grp = req->grp;
596
597 /* unlink request */
598 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
599 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
600
601 if (grp->grp_first == req)
602 grp->grp_first = req->grp_next;
603
604 aio_grp_dec (grp);
605 }
606
607 return !SvTRUE (ERRSV); 884 return !!SvTRUE (ERRSV);
608} 885}
609 886
887static void
610static void req_destroy (aio_req req) 888req_destroy (aio_req req)
611{ 889{
612 if (req->self) 890 if (req->self)
613 { 891 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
616 } 894 }
617 895
618 SvREFCNT_dec (req->sv1); 896 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
621 901
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 902 free (req);
626} 903}
627 904
905static void
628static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
629{ 907{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
633 return; 909 return;
634 910
635 SvREFCNT_dec (grp->sv2); 911 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 912 grp->sv2 = 0;
637 913
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 915}
641 916
642static void req_cancel (aio_req req) 917ecb_cold
643{
644 req->flags |= FLAG_CANCELLED;
645
646 req_cancel_subs (req);
647}
648
649#ifdef USE_SOCKETS_AS_HANDLES
650# define TO_SOCKET(x) (win32_get_osfhandle (x))
651#else
652# define TO_SOCKET(x) (x)
653#endif
654
655static void 918static void
656create_respipe () 919create_respipe (void)
657{ 920{
658 int old_readfd = respipe [0];
659
660 if (respipe [1] >= 0)
661 respipe_close (TO_SOCKET (respipe [1]));
662
663#ifdef _WIN32
664 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
665#else
666 if (pipe (respipe)) 921 if (s_epipe_renew (&respipe))
667#endif
668 croak ("unable to initialize result pipe"); 922 croak ("IO::AIO: unable to initialize result pipe");
669
670 if (old_readfd >= 0)
671 {
672 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
673 croak ("unable to initialize result pipe(2)");
674
675 respipe_close (respipe [0]);
676 respipe [0] = old_readfd;
677 }
678
679#ifdef _WIN32
680 int arg = 1;
681 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
682 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
683#else
684 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
685 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
686#endif
687 croak ("unable to initialize result pipe(3)");
688
689 respipe_osf [0] = TO_SOCKET (respipe [0]);
690 respipe_osf [1] = TO_SOCKET (respipe [1]);
691} 923}
692 924
693X_THREAD_PROC (aio_proc); 925static void
694 926poll_wait (void)
695static void start_thread (void)
696{ 927{
697 worker *wrk = calloc (1, sizeof (worker));
698
699 if (!wrk)
700 croak ("unable to allocate worker thread data");
701
702 X_LOCK (wrklock);
703
704 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
705 {
706 wrk->prev = &wrk_first;
707 wrk->next = wrk_first.next;
708 wrk_first.next->prev = wrk;
709 wrk_first.next = wrk;
710 ++started;
711 }
712 else
713 free (wrk);
714
715 X_UNLOCK (wrklock);
716}
717
718static void maybe_start_thread ()
719{
720 if (get_nthreads () >= wanted)
721 return;
722
723 /* todo: maybe use idle here, but might be less exact */
724 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
725 return;
726
727 start_thread ();
728}
729
730static void req_send (aio_req req)
731{
732 block_sig ();
733
734 ++nreqs;
735
736 X_LOCK (reqlock);
737 ++nready;
738 reqq_push (&req_queue, req);
739 X_COND_SIGNAL (reqwait);
740 X_UNLOCK (reqlock);
741
742 unblock_sig ();
743
744 maybe_start_thread ();
745}
746
747static void end_thread (void)
748{
749 aio_req req;
750
751 Newz (0, req, 1, aio_cb);
752
753 req->type = REQ_QUIT;
754 req->pri = PRI_MAX + PRI_BIAS;
755
756 X_LOCK (reqlock);
757 reqq_push (&req_queue, req);
758 X_COND_SIGNAL (reqwait);
759 X_UNLOCK (reqlock);
760
761 X_LOCK (wrklock);
762 --started;
763 X_UNLOCK (wrklock);
764}
765
766static void set_max_idle (int nthreads)
767{
768 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
769 max_idle = nthreads <= 0 ? 1 : nthreads;
770 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
771}
772
773static void min_parallel (int nthreads)
774{
775 if (wanted < nthreads)
776 wanted = nthreads;
777}
778
779static void max_parallel (int nthreads)
780{
781 if (wanted > nthreads)
782 wanted = nthreads;
783
784 while (started > wanted)
785 end_thread ();
786}
787
788static void poll_wait ()
789{
790 fd_set rfd;
791
792 while (nreqs) 928 while (eio_nreqs ())
793 { 929 {
794 int size; 930 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 931
932 X_LOCK (EIO_POOL->reslock);
796 size = res_queue.size; 933 size = EIO_POOL->res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 934 X_UNLOCK (EIO_POOL->reslock);
798 935
799 if (size) 936 if (size)
800 return; 937 return;
801 938
802 maybe_start_thread (); 939 etp_maybe_start_thread (EIO_POOL);
803 940
804 FD_ZERO (&rfd); 941 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 942 }
809} 943}
810 944
811static int poll_cb () 945static int
946poll_cb (void)
812{ 947{
813 dSP;
814 int count = 0;
815 int maxreqs = max_poll_reqs;
816 int do_croak = 0;
817 struct timeval tv_start, tv_now;
818 aio_req req;
819
820 if (max_poll_time)
821 gettimeofday (&tv_start, 0);
822
823 block_sig ();
824
825 for (;;) 948 for (;;)
826 { 949 {
827 for (;;) 950 int res = eio_poll ();
951
952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960}
961
962ecb_cold
963static void
964reinit (void)
965{
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970}
971
972/*****************************************************************************/
973
974static SV *
975get_cb (SV *cb_sv)
976{
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979}
980
981ecb_noinline
982static aio_req ecb_noinline
983dreq (SV *callback)
984{
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000}
1001
1002#define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014ecb_inline
1015void
1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017{
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
828 { 1024 {
829 maybe_start_thread (); 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
830 1027
831 X_LOCK (reslock); 1028 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 1029 {
836 --npending; 1030 *wd = SvAIO_WD (wdob);
837 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
838 if (!res_queue.size)
839 {
840 /* read any signals sent by the worker threads */
841 char buf [4];
842 while (respipe_read (respipe [0], buf, 4) == 4)
843 ;
844 }
845 }
846
847 X_UNLOCK (reslock);
848
849 if (!req)
850 break;
851
852 --nreqs;
853
854 if (req->type == REQ_GROUP && req->size)
855 {
856 req->int1 = 1; /* mark request as delayed */
857 continue;
858 } 1032 }
859 else 1033 else
860 { 1034 *wd = EIO_INVALID_WD;
861 if (!req_invoke (req))
862 {
863 req_destroy (req);
864 unblock_sig ();
865 croak (0);
866 }
867
868 count++;
869 }
870
871 req_destroy (req);
872
873 if (maxreqs && !--maxreqs)
874 break;
875
876 if (max_poll_time)
877 {
878 gettimeofday (&tv_now, 0);
879
880 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
881 break;
882 }
883 } 1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
884 1046
885 if (nreqs <= max_outstanding) 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049}
1050
1051ecb_noinline
1052static void
1053req_set_path1 (aio_req req, SV *path)
1054{
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056}
1057
1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
886 break; 1072 break;
887 1073
888 poll_wait (); 1074 default:
889 1075 req->type = type_path;
890 ++maxreqs; 1076 req_set_path1 (req, fh_or_path);
1077 break;
891 } 1078 }
892
893 unblock_sig ();
894 return count;
895} 1079}
896 1080
897/*****************************************************************************/ 1081/*****************************************************************************/
898/* work around various missing functions */
899 1082
900#if !HAVE_PREADWRITE 1083static void
901# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
902# define pwrite aio_pwrite
903
904/*
905 * make our pread/pwrite safe against themselves, but not against
906 * normal read/write by using a mutex. slows down execution a lot,
907 * but that's your problem, not mine.
908 */
909static mutex_t preadwritelock = X_MUTEX_INIT;
910
911static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
912{ 1085{
913 ssize_t res; 1086 ts->tv_sec = value;
914 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
915
916 X_LOCK (preadwritelock);
917 ooffset = lseek (fd, 0, SEEK_CUR);
918 lseek (fd, offset, SEEK_SET);
919 res = read (fd, buf, count);
920 lseek (fd, ooffset, SEEK_SET);
921 X_UNLOCK (preadwritelock);
922
923 return res;
924} 1088}
925 1089
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
927{ 1092{
928 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
929 off_t ooffset;
930
931 X_LOCK (preadwritelock);
932 ooffset = lseek (fd, 0, SEEK_CUR);
933 lseek (fd, offset, SEEK_SET);
934 res = write (fd, buf, count);
935 lseek (fd, offset, SEEK_SET);
936 X_UNLOCK (preadwritelock);
937
938 return res;
939} 1094}
940#endif
941 1095
942#ifndef HAVE_FUTIMES 1096/*****************************************************************************/
943 1097
944# define utimes(path,times) aio_utimes (path, times) 1098/* extract a ref-to-array of strings into a temporary c style string vector */
945# define futimes(fd,times) aio_futimes (fd, times) 1099static char **
946 1100extract_stringvec (SV *sv, const char *croakmsg)
947int aio_utimes (const char *filename, const struct timeval times[2])
948{ 1101{
949 if (times) 1102 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1103 croak (croakmsg);
1104
1105 AV *av = (AV *)SvRV (sv);
1106 int i, nelem = av_len (av) + 1;
1107 char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
1108
1109 for (i = 0; i < nelem; ++i)
950 { 1110 {
951 struct utimbuf buf; 1111 SV **e = av_fetch (av, i, 0);
952 1112
953 buf.actime = times[0].tv_sec; 1113 if (e && *e)
954 buf.modtime = times[1].tv_sec; 1114 vecp[i] = SvPVbyte_nolen (*e);
955 1115 else
956 return utime (filename, &buf); 1116 vecp[i] = "";
957 } 1117 }
958 else
959 return utime (filename, 0);
960}
961 1118
962int aio_futimes (int fd, const struct timeval tv[2]) 1119 vecp[nelem] = 0;
963{ 1120
964 errno = ENOSYS;
965 return -1; 1121 return vecp;
966} 1122}
967 1123
968#endif 1124/*****************************************************************************/
969 1125
970#if !HAVE_FDATASYNC 1126XS(boot_IO__AIO) ecb_cold;
971# define fdatasync fsync
972#endif
973 1127
974#if !HAVE_READAHEAD 1128MODULE = IO::AIO PACKAGE = IO::AIO
975# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
976 1129
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1130PROTOTYPES: ENABLE
978{
979 size_t todo = count;
980 dBUF;
981 1131
982 while (todo > 0) 1132BOOT:
983 {
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985
986 pread (fd, aio_buf, len, offset);
987 offset += len;
988 todo -= len;
989 }
990
991 errno = 0;
992 return count;
993}
994
995#endif
996
997#if !HAVE_READDIR_R
998# define readdir_r aio_readdir_r
999
1000static mutex_t readdirlock = X_MUTEX_INIT;
1001
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1003{ 1133{
1004 X_DIRENT *e; 1134 static const struct {
1005 int errorno; 1135 const char *name;
1136 IV iv;
1137 } *civ, const_iv[] = {
1138# define const_niv(name, value) { # name, (IV) value },
1139# define const_iv(name) { # name, (IV) name },
1140# define const_eio(name) { # name, (IV) EIO_ ## name },
1006 1141
1007 X_LOCK (readdirlock); 1142 /* you have to re-run ./gendef0 after adding/removing any constants here */
1143 /* the first block can be undef if missing */
1144 const_iv (ENOSYS)
1145 const_iv (EXDEV)
1146 const_iv (EBADR)
1008 1147
1009 e = readdir (dirp); 1148 /* for lseek */
1010 errorno = errno; 1149 const_iv (SEEK_DATA)
1150 const_iv (SEEK_HOLE)
1011 1151
1012 if (e) 1152 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1013 { 1153 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1014 *res = ent; 1154 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1015 strcpy (ent->d_name, e->d_name); 1155 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1016 } 1156 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1017 else 1157 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1018 *res = 0;
1019 1158
1020 X_UNLOCK (readdirlock); 1159 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1160 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1161 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1162 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1163 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1021 1164
1022 errno = errorno; 1165 /* the second block will be 0 when missing */
1023 return e ? 0 : -1; 1166 const_iv (O_ACCMODE)
1024}
1025#endif
1026 1167
1027/* sendfile always needs emulation */ 1168 const_iv (O_RDONLY)
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1169 const_iv (O_WRONLY)
1029{ 1170 const_iv (O_RDWR)
1030 ssize_t res; 1171 const_iv (O_CREAT)
1172 const_iv (O_TRUNC)
1173 const_iv (O_EXCL)
1174 const_iv (O_APPEND)
1031 1175
1032 if (!count) 1176 const_iv (O_ASYNC)
1033 return 0; 1177 const_iv (O_DIRECT)
1178 const_iv (O_NOATIME)
1034 1179
1035#if HAVE_SENDFILE 1180 const_iv (O_CLOEXEC)
1036# if __linux 1181 const_iv (O_NOCTTY)
1037 res = sendfile (ofd, ifd, &offset, count); 1182 const_iv (O_NOFOLLOW)
1183 const_iv (O_NONBLOCK)
1184 const_iv (O_EXEC)
1185 const_iv (O_SEARCH)
1186 const_iv (O_DIRECTORY)
1187 const_iv (O_DSYNC)
1188 const_iv (O_RSYNC)
1189 const_iv (O_SYNC)
1190 const_iv (O_PATH)
1191 const_iv (O_TMPFILE)
1192 const_iv (O_TTY_INIT)
1038 1193
1039# elif __freebsd 1194 const_iv (S_IFIFO)
1040 /* 1195 const_iv (S_IFCHR)
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts 1196 const_iv (S_IFBLK)
1042 * wasted on making it similar to other I/O functions. 1197 const_iv (S_IFLNK)
1043 */ 1198 const_iv (S_IFREG)
1199 const_iv (S_IFDIR)
1200 const_iv (S_IFWHT)
1201 const_iv (S_IFSOCK)
1202 const_iv (S_IFMT)
1203
1204 const_iv (ST_RDONLY)
1205 const_iv (ST_NOSUID)
1206 const_iv (ST_NODEV)
1207 const_iv (ST_NOEXEC)
1208 const_iv (ST_SYNCHRONOUS)
1209 const_iv (ST_MANDLOCK)
1210 const_iv (ST_WRITE)
1211 const_iv (ST_APPEND)
1212 const_iv (ST_IMMUTABLE)
1213 const_iv (ST_NOATIME)
1214 const_iv (ST_NODIRATIME)
1215 const_iv (ST_RELATIME)
1216
1217 const_iv (PROT_NONE)
1218 const_iv (PROT_EXEC)
1219 const_iv (PROT_READ)
1220 const_iv (PROT_WRITE)
1221
1222 const_iv (MAP_PRIVATE)
1223 const_iv (MAP_SHARED)
1224 const_iv (MAP_FIXED)
1225 const_iv (MAP_ANONYMOUS)
1226
1227 /* linuxish */
1228 const_iv (MAP_LOCKED)
1229 const_iv (MAP_NORESERVE)
1230 const_iv (MAP_POPULATE)
1231 const_iv (MAP_NONBLOCK)
1232 const_iv (MAP_GROWSDOWN)
1233 const_iv (MAP_32BIT)
1234 const_iv (MAP_HUGETLB)
1235 const_iv (MAP_STACK)
1236 const_iv (MAP_FIXED_NOREPLACE)
1237 const_iv (MAP_SHARED_VALIDATE)
1238 const_iv (MAP_SYNC)
1239 const_iv (MAP_UNINITIALIZED)
1240
1241 const_iv (MREMAP_MAYMOVE)
1242 const_iv (MREMAP_FIXED)
1243
1244 const_iv (MSG_CMSG_CLOEXEC)
1245 const_iv (SOCK_CLOEXEC)
1246
1247 const_iv (F_DUPFD_CLOEXEC)
1248
1249 const_iv (F_ADD_SEALS)
1250 const_iv (F_GET_SEALS)
1251 const_iv (F_SEAL_SEAL)
1252 const_iv (F_SEAL_SHRINK)
1253 const_iv (F_SEAL_GROW)
1254 const_iv (F_SEAL_WRITE)
1255
1256 const_iv (F_OFD_GETLK)
1257 const_iv (F_OFD_SETLK)
1258 const_iv (F_OFD_GETLKW)
1259
1260 const_iv (FIFREEZE)
1261 const_iv (FITHAW)
1262 const_iv (FITRIM)
1263 const_iv (FICLONE)
1264 const_iv (FICLONERANGE)
1265 const_iv (FIDEDUPERANGE)
1266
1267 const_iv (FS_IOC_GETFLAGS)
1268 const_iv (FS_IOC_SETFLAGS)
1269 const_iv (FS_IOC_GETVERSION)
1270 const_iv (FS_IOC_SETVERSION)
1271 const_iv (FS_IOC_FIEMAP)
1272 const_iv (FS_IOC_FSGETXATTR)
1273 const_iv (FS_IOC_FSSETXATTR)
1274 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1275 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1276 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1277
1278 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1279
1280 const_iv (FS_SECRM_FL)
1281 const_iv (FS_UNRM_FL)
1282 const_iv (FS_COMPR_FL)
1283 const_iv (FS_SYNC_FL)
1284 const_iv (FS_IMMUTABLE_FL)
1285 const_iv (FS_APPEND_FL)
1286 const_iv (FS_NODUMP_FL)
1287 const_iv (FS_NOATIME_FL)
1288 const_iv (FS_DIRTY_FL)
1289 const_iv (FS_COMPRBLK_FL)
1290 const_iv (FS_NOCOMP_FL)
1291 const_iv (FS_ENCRYPT_FL)
1292 const_iv (FS_BTREE_FL)
1293 const_iv (FS_INDEX_FL)
1294 const_iv (FS_JOURNAL_DATA_FL)
1295 const_iv (FS_NOTAIL_FL)
1296 const_iv (FS_DIRSYNC_FL)
1297 const_iv (FS_TOPDIR_FL)
1298 const_iv (FS_FL_USER_MODIFIABLE)
1299
1300 const_iv (FS_XFLAG_REALTIME)
1301 const_iv (FS_XFLAG_PREALLOC)
1302 const_iv (FS_XFLAG_IMMUTABLE)
1303 const_iv (FS_XFLAG_APPEND)
1304 const_iv (FS_XFLAG_SYNC)
1305 const_iv (FS_XFLAG_NOATIME)
1306 const_iv (FS_XFLAG_NODUMP)
1307 const_iv (FS_XFLAG_RTINHERIT)
1308 const_iv (FS_XFLAG_PROJINHERIT)
1309 const_iv (FS_XFLAG_NOSYMLINKS)
1310 const_iv (FS_XFLAG_EXTSIZE)
1311 const_iv (FS_XFLAG_EXTSZINHERIT)
1312 const_iv (FS_XFLAG_NODEFRAG)
1313 const_iv (FS_XFLAG_FILESTREAM)
1314 const_iv (FS_XFLAG_DAX)
1315 const_iv (FS_XFLAG_HASATTR)
1316
1317 const_iv (FIEMAP_FLAG_SYNC)
1318 const_iv (FIEMAP_FLAG_XATTR)
1319 const_iv (FIEMAP_FLAGS_COMPAT)
1320 const_iv (FIEMAP_EXTENT_LAST)
1321 const_iv (FIEMAP_EXTENT_UNKNOWN)
1322 const_iv (FIEMAP_EXTENT_DELALLOC)
1323 const_iv (FIEMAP_EXTENT_ENCODED)
1324 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1325 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1326 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1327 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1328 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1329 const_iv (FIEMAP_EXTENT_MERGED)
1330 const_iv (FIEMAP_EXTENT_SHARED)
1331
1332 const_iv (SPLICE_F_MOVE)
1333 const_iv (SPLICE_F_NONBLOCK)
1334 const_iv (SPLICE_F_MORE)
1335 const_iv (SPLICE_F_GIFT)
1336
1337 const_iv (EFD_CLOEXEC)
1338 const_iv (EFD_NONBLOCK)
1339 const_iv (EFD_SEMAPHORE)
1340
1341 const_iv (MFD_CLOEXEC)
1342 const_iv (MFD_ALLOW_SEALING)
1343 const_iv (MFD_HUGETLB)
1344 const_iv (MFD_HUGETLB_2MB)
1345 const_iv (MFD_HUGETLB_1GB)
1346
1347 const_iv (CLOCK_REALTIME)
1348 const_iv (CLOCK_MONOTONIC)
1349 const_iv (CLOCK_BOOTTIME)
1350 const_iv (CLOCK_REALTIME_ALARM)
1351 const_iv (CLOCK_BOOTTIME_ALARM)
1352
1353 const_iv (TFD_NONBLOCK)
1354 const_iv (TFD_CLOEXEC)
1355
1356 const_iv (TFD_TIMER_ABSTIME)
1357 const_iv (TFD_TIMER_CANCEL_ON_SET)
1358
1359 const_iv (STATX_TYPE)
1360 const_iv (STATX_MODE)
1361 const_iv (STATX_NLINK)
1362 const_iv (STATX_UID)
1363 const_iv (STATX_GID)
1364 const_iv (STATX_ATIME)
1365 const_iv (STATX_MTIME)
1366 const_iv (STATX_CTIME)
1367 const_iv (STATX_INO)
1368 const_iv (STATX_SIZE)
1369 const_iv (STATX_BLOCKS)
1370 const_iv (STATX_BASIC_STATS)
1371 const_iv (STATX_ALL)
1372 const_iv (STATX_BTIME)
1373 const_iv (STATX_ATTR_COMPRESSED)
1374 const_iv (STATX_ATTR_IMMUTABLE)
1375 const_iv (STATX_ATTR_APPEND)
1376 const_iv (STATX_ATTR_NODUMP)
1377 const_iv (STATX_ATTR_ENCRYPTED)
1378 const_iv (STATX_ATTR_AUTOMOUNT)
1379
1380 const_iv (AT_FDCWD)
1381 const_iv (AT_SYMLINK_NOFOLLOW)
1382 const_iv (AT_EACCESS)
1383 const_iv (AT_REMOVEDIR)
1384 const_iv (AT_SYMLINK_FOLLOW)
1385 const_iv (AT_NO_AUTOMOUNT)
1386 const_iv (AT_EMPTY_PATH)
1387 const_iv (AT_STATX_SYNC_TYPE)
1388 const_iv (AT_STATX_AS_STAT)
1389 const_iv (AT_STATX_FORCE_SYNC)
1390 const_iv (AT_STATX_DONT_SYNC)
1391 const_iv (AT_RECURSIVE)
1392
1393 const_iv (OPEN_TREE_CLONE)
1394
1395 const_iv (FSOPEN_CLOEXEC)
1396
1397 const_iv (FSPICK_CLOEXEC)
1398 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1399 const_iv (FSPICK_NO_AUTOMOUNT)
1400 const_iv (FSPICK_EMPTY_PATH)
1401
1402 const_iv (MOVE_MOUNT_F_SYMLINKS)
1403 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1404 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1405 const_iv (MOVE_MOUNT_T_SYMLINKS)
1406 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1407 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1408
1409 /* waitid */
1410 const_iv (P_PID)
1411 const_iv (P_PIDFD)
1412 const_iv (P_PGID)
1413 const_iv (P_ALL)
1414
1415 const_iv (FSCONFIG_SET_FLAG)
1416 const_iv (FSCONFIG_SET_STRING)
1417 const_iv (FSCONFIG_SET_BINARY)
1418 const_iv (FSCONFIG_SET_PATH)
1419 const_iv (FSCONFIG_SET_PATH_EMPTY)
1420 const_iv (FSCONFIG_SET_FD)
1421 const_iv (FSCONFIG_CMD_CREATE)
1422 const_iv (FSCONFIG_CMD_RECONFIGURE)
1423
1424 const_iv (MOUNT_ATTR_RDONLY)
1425 const_iv (MOUNT_ATTR_NOSUID)
1426 const_iv (MOUNT_ATTR_NODEV)
1427 const_iv (MOUNT_ATTR_NOEXEC)
1428 const_iv (MOUNT_ATTR__ATIME)
1429 const_iv (MOUNT_ATTR_RELATIME)
1430 const_iv (MOUNT_ATTR_NOATIME)
1431 const_iv (MOUNT_ATTR_STRICTATIME)
1432 const_iv (MOUNT_ATTR_NODIRATIME)
1433
1434 /* these are libeio constants, and are independent of gendef0 */
1435 const_eio (SEEK_SET)
1436 const_eio (SEEK_CUR)
1437 const_eio (SEEK_END)
1438
1439 const_eio (MCL_FUTURE)
1440 const_eio (MCL_CURRENT)
1441 const_eio (MCL_ONFAULT)
1442
1443 const_eio (MS_ASYNC)
1444 const_eio (MS_INVALIDATE)
1445 const_eio (MS_SYNC)
1446
1447 const_eio (MT_MODIFY)
1448
1449 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1450 const_eio (SYNC_FILE_RANGE_WRITE)
1451 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1452
1453 const_eio (FALLOC_FL_KEEP_SIZE)
1454 const_eio (FALLOC_FL_PUNCH_HOLE)
1455 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1456 const_eio (FALLOC_FL_ZERO_RANGE)
1457 const_eio (FALLOC_FL_INSERT_RANGE)
1458 const_eio (FALLOC_FL_UNSHARE_RANGE)
1459
1460 const_eio (RENAME_NOREPLACE)
1461 const_eio (RENAME_EXCHANGE)
1462 const_eio (RENAME_WHITEOUT)
1463
1464 const_eio (READDIR_DENTS)
1465 const_eio (READDIR_DIRS_FIRST)
1466 const_eio (READDIR_STAT_ORDER)
1467 const_eio (READDIR_FOUND_UNKNOWN)
1468
1469 const_eio (DT_UNKNOWN)
1470 const_eio (DT_FIFO)
1471 const_eio (DT_CHR)
1472 const_eio (DT_DIR)
1473 const_eio (DT_BLK)
1474 const_eio (DT_REG)
1475 const_eio (DT_LNK)
1476 const_eio (DT_SOCK)
1477 const_eio (DT_WHT)
1478 };
1479
1480 aio_stash = gv_stashpv ("IO::AIO" , 1);
1481 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1482 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1483 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1484
1485 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1486 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1487
1488 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1489
1490 /* allocate dummy pipe fd for aio_close */
1044 { 1491 {
1045 off_t sbytes; 1492 int pipefd [2];
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047 1493
1048 if (res < 0 && sbytes) 1494 if (
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1495#ifdef _WIN32
1050 res = sbytes; 1496 _pipe (pipefd, 1, _O_BINARY) < 0
1497#else
1498 pipe (pipefd) < 0
1499 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1500#endif
1501 || close (pipefd [1]) < 0
1502 )
1503 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1504
1505 close_fd = pipefd [0];
1051 } 1506 }
1052 1507
1053# elif __hpux 1508 reinit ();
1054 res = sendfile (ofd, ifd, offset, count, 0, 0);
1055
1056# elif __solaris
1057 {
1058 struct sendfilevec vec;
1059 size_t sbytes;
1060
1061 vec.sfv_fd = ifd;
1062 vec.sfv_flag = 0;
1063 vec.sfv_off = offset;
1064 vec.sfv_len = count;
1065
1066 res = sendfilev (ofd, &vec, 1, &sbytes);
1067
1068 if (res < 0 && sbytes)
1069 res = sbytes;
1070 }
1071
1072# endif
1073#else
1074 res = -1;
1075 errno = ENOSYS;
1076#endif
1077
1078 if (res < 0
1079 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1080#if __solaris
1081 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1082#endif
1083 )
1084 )
1085 {
1086 /* emulate sendfile. this is a major pain in the ass */
1087 dBUF;
1088
1089 res = 0;
1090
1091 while (count)
1092 {
1093 ssize_t cnt;
1094
1095 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1096
1097 if (cnt <= 0)
1098 {
1099 if (cnt && !res) res = -1;
1100 break;
1101 }
1102
1103 cnt = write (ofd, aio_buf, cnt);
1104
1105 if (cnt <= 0)
1106 {
1107 if (cnt && !res) res = -1;
1108 break;
1109 }
1110
1111 offset += cnt;
1112 res += cnt;
1113 count -= cnt;
1114 }
1115 }
1116
1117 return res;
1118} 1509}
1119 1510
1120/* read a full directory */
1121static void scandir_ (aio_req req, worker *self)
1122{
1123 DIR *dirp;
1124 union
1125 {
1126 X_DIRENT d;
1127 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1128 } *u;
1129 X_DIRENT *entp;
1130 char *name, *names;
1131 int memlen = 4096;
1132 int memofs = 0;
1133 int res = 0;
1134
1135 X_LOCK (wrklock);
1136 self->dirp = dirp = opendir (req->ptr1);
1137 self->dbuf = u = malloc (sizeof (*u));
1138 req->flags |= FLAG_PTR2_FREE;
1139 req->ptr2 = names = malloc (memlen);
1140 X_UNLOCK (wrklock);
1141
1142 if (dirp && u && names)
1143 for (;;)
1144 {
1145 errno = 0;
1146 readdir_r (dirp, &u->d, &entp);
1147
1148 if (!entp)
1149 break;
1150
1151 name = entp->d_name;
1152
1153 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1154 {
1155 int len = strlen (name) + 1;
1156
1157 res++;
1158
1159 while (memofs + len > memlen)
1160 {
1161 memlen *= 2;
1162 X_LOCK (wrklock);
1163 req->ptr2 = names = realloc (names, memlen);
1164 X_UNLOCK (wrklock);
1165
1166 if (!names)
1167 break;
1168 }
1169
1170 memcpy (names + memofs, name, len);
1171 memofs += len;
1172 }
1173 }
1174
1175 if (errno)
1176 res = -1;
1177
1178 req->result = res;
1179}
1180
1181/*****************************************************************************/
1182
1183X_THREAD_PROC (aio_proc)
1184{
1185 {//D
1186 aio_req req;
1187 struct timespec ts;
1188 worker *self = (worker *)thr_arg;
1189
1190 /* try to distribute timeouts somewhat randomly */
1191 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1192
1193 for (;;)
1194 {
1195 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1196
1197 X_LOCK (reqlock);
1198
1199 for (;;)
1200 {
1201 self->req = req = reqq_shift (&req_queue);
1202
1203 if (req)
1204 break;
1205
1206 ++idle;
1207
1208 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1209 == ETIMEDOUT)
1210 {
1211 if (idle > max_idle)
1212 {
1213 --idle;
1214 X_UNLOCK (reqlock);
1215 X_LOCK (wrklock);
1216 --started;
1217 X_UNLOCK (wrklock);
1218 goto quit;
1219 }
1220
1221 /* we are allowed to idle, so do so without any timeout */
1222 X_COND_WAIT (reqwait, reqlock);
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224 }
1225
1226 --idle;
1227 }
1228
1229 --nready;
1230
1231 X_UNLOCK (reqlock);
1232
1233 errno = 0; /* strictly unnecessary */
1234
1235 if (!(req->flags & FLAG_CANCELLED))
1236 switch (req->type)
1237 {
1238 case REQ_READ: req->result = req->offs >= 0
1239 ? pread (req->int1, req->ptr1, req->size, req->offs)
1240 : read (req->int1, req->ptr1, req->size); break;
1241 case REQ_WRITE: req->result = req->offs >= 0
1242 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1243 : write (req->int1, req->ptr1, req->size); break;
1244
1245 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1246 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1247
1248 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1249 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1251
1252 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1253 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1254 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1255 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1256 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1257 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1258
1259 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1260 case REQ_CLOSE: req->result = PerlIO_close ((PerlIO *)req->ptr1); break;
1261 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1262 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1263 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1264 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1265 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1266 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1267 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1268 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1269
1270 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1271 case REQ_FSYNC: req->result = fsync (req->int1); break;
1272 case REQ_READDIR: scandir_ (req, self); break;
1273
1274 case REQ_BUSY:
1275#ifdef _WIN32
1276 Sleep (req->nv1 * 1000.);
1277#else
1278 {
1279 struct timeval tv;
1280
1281 tv.tv_sec = req->nv1;
1282 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1283
1284 req->result = select (0, 0, 0, 0, &tv);
1285 }
1286#endif
1287 break;
1288
1289 case REQ_UTIME:
1290 case REQ_FUTIME:
1291 {
1292 struct timeval tv[2];
1293 struct timeval *times;
1294
1295 if (req->nv1 != -1. || req->nv2 != -1.)
1296 {
1297 tv[0].tv_sec = req->nv1;
1298 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1299 tv[1].tv_sec = req->nv2;
1300 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1301
1302 times = tv;
1303 }
1304 else
1305 times = 0;
1306
1307
1308 req->result = req->type == REQ_FUTIME
1309 ? futimes (req->int1, times)
1310 : utimes (req->ptr1, times);
1311 }
1312
1313 case REQ_GROUP:
1314 case REQ_NOP:
1315 break;
1316
1317 case REQ_QUIT:
1318 goto quit;
1319
1320 default:
1321 req->result = -1;
1322 break;
1323 }
1324
1325 req->errorno = errno;
1326
1327 X_LOCK (reslock);
1328
1329 ++npending;
1330
1331 if (!reqq_push (&res_queue, req))
1332 {
1333 /* write a dummy byte to the pipe so fh becomes ready */
1334 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1335
1336 /* optionally signal the main thread asynchronously */
1337 if (main_sig)
1338 pthread_kill (main_tid, main_sig);
1339 }
1340
1341 self->req = 0;
1342 worker_clear (self);
1343
1344 X_UNLOCK (reslock);
1345 }
1346
1347quit:
1348 X_LOCK (wrklock);
1349 worker_free (self);
1350 X_UNLOCK (wrklock);
1351
1352 return 0;
1353 }//D
1354}
1355
1356/*****************************************************************************/
1357
1358static void atfork_prepare (void)
1359{
1360 X_LOCK (wrklock);
1361 X_LOCK (reqlock);
1362 X_LOCK (reslock);
1363#if !HAVE_PREADWRITE
1364 X_LOCK (preadwritelock);
1365#endif
1366#if !HAVE_READDIR_R
1367 X_LOCK (readdirlock);
1368#endif
1369}
1370
1371static void atfork_parent (void)
1372{
1373#if !HAVE_READDIR_R
1374 X_UNLOCK (readdirlock);
1375#endif
1376#if !HAVE_PREADWRITE
1377 X_UNLOCK (preadwritelock);
1378#endif
1379 X_UNLOCK (reslock);
1380 X_UNLOCK (reqlock);
1381 X_UNLOCK (wrklock);
1382}
1383
1384static void atfork_child (void)
1385{
1386 aio_req prv;
1387
1388 while (prv = reqq_shift (&req_queue))
1389 req_destroy (prv);
1390
1391 while (prv = reqq_shift (&res_queue))
1392 req_destroy (prv);
1393
1394 while (wrk_first.next != &wrk_first)
1395 {
1396 worker *wrk = wrk_first.next;
1397
1398 if (wrk->req)
1399 req_destroy (wrk->req);
1400
1401 worker_clear (wrk);
1402 worker_free (wrk);
1403 }
1404
1405 started = 0;
1406 idle = 0;
1407 nreqs = 0;
1408 nready = 0;
1409 npending = 0;
1410
1411 create_respipe ();
1412
1413 atfork_parent ();
1414}
1415
1416#define dREQ \
1417 aio_req req; \
1418 int req_pri = next_pri; \
1419 next_pri = DEFAULT_PRI + PRI_BIAS; \
1420 \
1421 if (SvOK (callback) && !SvROK (callback)) \
1422 croak ("callback must be undef or of reference type"); \
1423 \
1424 Newz (0, req, 1, aio_cb); \
1425 if (!req) \
1426 croak ("out of memory during aio_req allocation"); \
1427 \
1428 req->callback = newSVsv (callback); \
1429 req->pri = req_pri
1430
1431#define REQ_SEND \
1432 req_send (req); \
1433 \
1434 if (GIMME_V != G_VOID) \
1435 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1436
1437MODULE = IO::AIO PACKAGE = IO::AIO
1438
1439PROTOTYPES: ENABLE
1440
1441BOOT:
1442{
1443 stash = gv_stashpv ("IO::AIO", 1);
1444
1445 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1446 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1447 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1448 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1449 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1450#ifdef _WIN32
1451 X_MUTEX_CHECK (wrklock);
1452 X_MUTEX_CHECK (reslock);
1453 X_MUTEX_CHECK (reqlock);
1454 X_MUTEX_CHECK (reqwait);
1455 X_MUTEX_CHECK (preadwritelock);
1456 X_MUTEX_CHECK (readdirlock);
1457
1458 X_COND_CHECK (reqwait);
1459#else
1460 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1461 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1462#endif
1463
1464 create_respipe ();
1465
1466 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1467}
1468
1469void 1511void
1512reinit ()
1513 PROTOTYPE:
1514
1515void
1470max_poll_reqs (int nreqs) 1516max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1517 PROTOTYPE: $
1472 CODE: 1518 CODE:
1473 max_poll_reqs = nreqs; 1519 eio_set_max_poll_reqs (nreqs);
1474 1520
1475void 1521void
1476max_poll_time (double nseconds) 1522max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1523 PROTOTYPE: $
1478 CODE: 1524 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1525 eio_set_max_poll_time (nseconds);
1480 1526
1481void 1527void
1482min_parallel (int nthreads) 1528min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1529 PROTOTYPE: $
1492 CODE: 1530 CODE:
1493 set_max_idle (nthreads); 1531 eio_set_min_parallel (nthreads);
1494 1532
1495int 1533void
1496max_outstanding (int maxreqs) 1534max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1535 PROTOTYPE: $
1498 CODE: 1536 CODE:
1499 RETVAL = max_outstanding; 1537 eio_set_max_parallel (nthreads);
1538
1539void
1540max_idle (unsigned int nthreads)
1541 PROTOTYPE: $
1542 CODE:
1543 eio_set_max_idle (nthreads);
1544
1545void
1546idle_timeout (unsigned int seconds)
1547 PROTOTYPE: $
1548 CODE:
1549 eio_set_idle_timeout (seconds);
1550
1551void
1552max_outstanding (unsigned int maxreqs)
1553 PROTOTYPE: $
1554 CODE:
1500 max_outstanding = maxreqs; 1555 max_outstanding = maxreqs;
1501 OUTPUT:
1502 RETVAL
1503 1556
1504void 1557void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1558aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1559 PPCODE:
1508{ 1560{
1509 dREQ; 1561 dREQ;
1510 1562
1563 req->type = EIO_WD_OPEN;
1564 req_set_path1 (req, pathname);
1565
1566 REQ_SEND;
1567}
1568
1569void
1570aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1571 PPCODE:
1572{
1573 dREQ;
1574
1511 req->type = REQ_OPEN; 1575 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1576 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1577 req->int1 = flags;
1515 req->mode = mode; 1578 req->int2 = mode;
1516 1579
1517 REQ_SEND; 1580 REQ_SEND;
1518} 1581}
1519 1582
1520void 1583void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1584aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1585 ALIAS:
1524 aio_fsync = REQ_FSYNC 1586 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1587 aio_fdatasync = EIO_FDATASYNC
1588 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1589 PPCODE:
1527{ 1590{
1591 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1592 dREQ;
1529 1593
1530 req->type = ix; 1594 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1595 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1596 req->int1 = fd;
1533 1597
1534 REQ_SEND (req); 1598 REQ_SEND;
1535} 1599}
1536 1600
1537void 1601void
1602aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1603 PPCODE:
1604{
1605 int fd = s_fileno_croak (fh, 0);
1606 dREQ;
1607
1608 req->type = EIO_SYNC_FILE_RANGE;
1609 req->sv1 = newSVsv (fh);
1610 req->int1 = fd;
1611 req->offs = offset;
1612 req->size = nbytes;
1613 req->int2 = flags;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 int fd = s_fileno_croak (fh, 0);
1623 dREQ;
1624
1625 req->type = EIO_FALLOCATE;
1626 req->sv1 = newSVsv (fh);
1627 req->int1 = fd;
1628 req->int2 = mode;
1629 req->offs = offset;
1630 req->size = len;
1631
1632 REQ_SEND;
1633}
1634
1635void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1636aio_close (SV *fh, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1637 PPCODE:
1541{ 1638{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1639 int fd = s_fileno_croak (fh, 0);
1543 int fd = PerlIO_fileno (io);
1544
1545 if (fd < 0)
1546 croak ("aio_close called with fd-less filehandle");
1547
1548 PerlIO_binmode (aTHX_ io, 0, 0, 0);
1549
1550 {
1551 dREQ; 1640 dREQ;
1641#if 0
1642 /* partially duplicate logic in s_fileno */
1643 SvGETMAGIC (fh);
1552 1644
1645 if (SvROK (fh))
1646 {
1647 fh = SvRV (fh);
1648 SvGETMAGIC (fh);
1649 }
1650
1651 if (SvTYPE (fh) == SVt_PVGV)
1652 {
1653 /* perl filehandle */
1654 PerlIOUnix_refcnt_inc (fd);
1655 do_close ((GV *)fh, 1);
1656
1553 req->type = REQ_CLOSE; 1657 req->type = EIO_CLOSE;
1658 req->int1 = fd;
1659 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1660 }
1661 else
1662#endif
1663 {
1664 /* fd number */
1665 req->type = EIO_DUP2;
1666 req->int1 = close_fd;
1667 req->sv2 = newSVsv (fh);
1668 req->int2 = fd;
1669 }
1670
1671 REQ_SEND;
1672}
1673
1674void
1675aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1676 PPCODE:
1677{
1678 int fd = s_fileno_croak (fh, 0);
1679 dREQ;
1680
1681 req->type = EIO_SEEK;
1554 req->sv1 = newSVsv (fh); 1682 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1683 req->int1 = fd;
1684 req->offs = SvVAL64 (offset);
1685 req->int2 = whence;
1556 1686
1557 REQ_SEND (req); 1687 REQ_SEND;
1558 }
1559} 1688}
1560 1689
1561void 1690void
1562aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1691aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1563 ALIAS: 1692 ALIAS:
1564 aio_read = REQ_READ 1693 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1694 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1695 PPCODE:
1568{ 1696{
1569 STRLEN svlen; 1697 STRLEN svlen;
1698 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1699 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1700 UV len = SvUV (length);
1572 1701
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1702 if (dataoffset < 0)
1577 dataoffset += svlen; 1703 dataoffset += svlen;
1578 1704
1579 if (dataoffset < 0 || dataoffset > svlen) 1705 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1706 croak ("dataoffset outside of data scalar");
1581 1707
1582 if (ix == REQ_WRITE) 1708 if (ix == EIO_WRITE)
1583 { 1709 {
1584 /* write: check length and adjust. */ 1710 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1711 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1712 len = svlen - dataoffset;
1587 } 1713 }
1588 else 1714 else
1589 { 1715 {
1590 /* read: grow scalar as necessary */ 1716 /* read: check type and grow scalar as necessary */
1717 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1591 svptr = SvGROW (data, len + dataoffset + 1); 1718 svptr = sv_grow (data, len + dataoffset + 1);
1719 else if (SvCUR (data) < len + dataoffset)
1720 croak ("length + dataoffset outside of scalar, and cannot grow");
1592 } 1721 }
1593
1594 if (len < 0)
1595 croak ("length must not be negative");
1596 1722
1597 { 1723 {
1598 dREQ; 1724 dREQ;
1599 1725
1600 req->type = ix; 1726 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1727 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1728 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1729 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1730 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1731 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1732 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1733 req->stroffset = dataoffset;
1609 1734
1610 if (!SvREADONLY (data)) 1735 if (!SvREADONLY (data))
1611 { 1736 {
1612 SvREADONLY_on (data); 1737 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1741 REQ_SEND;
1617 } 1742 }
1618} 1743}
1619 1744
1620void 1745void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1746aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1622 PROTOTYPE: $$;$ 1747 ALIAS:
1748 aio_ioctl = EIO_IOCTL
1749 aio_fcntl = EIO_FCNTL
1623 PPCODE: 1750 PPCODE:
1624{ 1751{
1625 SV *data; 1752 int fd = s_fileno_croak (fh, 0);
1626 dREQ; 1753 char *svptr;
1627 1754
1628 data = newSV (NAME_MAX); 1755 if (SvPOK (arg) || !SvNIOK (arg))
1629 SvPOK_on (data);
1630
1631 req->type = REQ_READLINK;
1632 req->sv1 = newSVsv (path);
1633 req->ptr2 = SvPVbyte_nolen (req->sv1);
1634 req->sv2 = data;
1635 req->ptr1 = SvPVbyte_nolen (data);
1636
1637 REQ_SEND;
1638}
1639
1640void
1641aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1642 PROTOTYPE: $$$$;$
1643 PPCODE:
1644{
1645 dREQ;
1646
1647 req->type = REQ_SENDFILE;
1648 req->sv1 = newSVsv (out_fh);
1649 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1650 req->sv2 = newSVsv (in_fh);
1651 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1652 req->offs = SvVAL64 (in_offset);
1653 req->size = length;
1654
1655 REQ_SEND;
1656}
1657
1658void
1659aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1660 PROTOTYPE: $$$;$
1661 PPCODE:
1662{
1663 dREQ;
1664
1665 req->type = REQ_READAHEAD;
1666 req->sv1 = newSVsv (fh);
1667 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1668 req->offs = SvVAL64 (offset);
1669 req->size = length;
1670
1671 REQ_SEND;
1672}
1673
1674void
1675aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1676 ALIAS:
1677 aio_stat = REQ_STAT
1678 aio_lstat = REQ_LSTAT
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->ptr2 = malloc (sizeof (Stat_t));
1684 if (!req->ptr2)
1685 { 1756 {
1686 req_destroy (req); 1757 STRLEN svlen;
1687 croak ("out of memory during aio_stat statdata allocation"); 1758 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1688 } 1759#ifdef IOCPARM_LEN
1760 STRLEN need = IOCPARM_LEN (request);
1761#else
1762 STRLEN need = 256;
1763#endif
1689 1764
1690 req->flags |= FLAG_PTR2_FREE; 1765 if (svlen < need)
1691 req->sv1 = newSVsv (fh_or_path); 1766 svptr = SvGROW (arg, need);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 } 1767 }
1698 else 1768 else
1769 svptr = (char *)SvIV (arg);
1770
1699 { 1771 {
1772 dREQ;
1773
1700 req->type = REQ_FSTAT; 1774 req->type = ix;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1775 req->sv1 = newSVsv (fh);
1776 req->int1 = fd;
1777 req->int2 = (long)request;
1778 req->sv2 = SvREFCNT_inc (arg);
1779 req->ptr2 = svptr;
1780
1781 REQ_SEND;
1702 } 1782 }
1783}
1784
1785void
1786aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1787 ALIAS:
1788 aio_readlink = EIO_READLINK
1789 aio_realpath = EIO_REALPATH
1790 PPCODE:
1791{
1792 dREQ;
1793
1794 req->type = ix;
1795 req_set_path1 (req, pathname);
1703 1796
1704 REQ_SEND; 1797 REQ_SEND;
1705} 1798}
1706 1799
1707void 1800void
1801aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1802 PPCODE:
1803{
1804 int ifd = s_fileno_croak (in_fh , 0);
1805 int ofd = s_fileno_croak (out_fh, 1);
1806 dREQ;
1807
1808 req->type = EIO_SENDFILE;
1809 req->sv1 = newSVsv (out_fh);
1810 req->int1 = ofd;
1811 req->sv2 = newSVsv (in_fh);
1812 req->int2 = ifd;
1813 req->offs = in_offset;
1814 req->size = length;
1815
1816 REQ_SEND;
1817}
1818
1819void
1820aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1821 PPCODE:
1822{
1823 int fd = s_fileno_croak (fh, 0);
1824 dREQ;
1825
1826 req->type = EIO_READAHEAD;
1827 req->sv1 = newSVsv (fh);
1828 req->int1 = fd;
1829 req->offs = offset;
1830 req->size = length;
1831
1832 REQ_SEND;
1833}
1834
1835void
1836aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1837 ALIAS:
1838 aio_stat = EIO_STAT
1839 aio_lstat = EIO_LSTAT
1840 aio_statvfs = EIO_STATVFS
1841 PPCODE:
1842{
1843 dREQ;
1844
1845 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1846
1847 REQ_SEND;
1848}
1849
1850void
1851st_xtime ()
1852 ALIAS:
1853 st_atime = 0x01
1854 st_mtime = 0x02
1855 st_ctime = 0x04
1856 st_btime = 0x08
1857 st_xtime = 0x0f
1858 PPCODE:
1859 EXTEND (SP, 4);
1860 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1861 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1862 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1863 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1864
1865void
1866st_xtimensec ()
1867 ALIAS:
1868 st_atimensec = 0x01
1869 st_mtimensec = 0x02
1870 st_ctimensec = 0x04
1871 st_btimensec = 0x08
1872 st_xtimensec = 0x0f
1873 st_btimesec = 0x10
1874 st_gen = 0x20
1875 PPCODE:
1876 EXTEND (SP, 4);
1877 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1878 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1879 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1880 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1881 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1882 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1883
1884UV
1885major (UV dev)
1886 ALIAS:
1887 minor = 1
1888 CODE:
1889 RETVAL = ix ? minor (dev) : major (dev);
1890 OUTPUT:
1891 RETVAL
1892
1893UV
1894makedev (UV maj, UV min)
1895 CODE:
1896 RETVAL = makedev (maj, min);
1897 OUTPUT:
1898 RETVAL
1899
1900void
1708aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1901aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1709 PPCODE: 1902 PPCODE:
1710{ 1903{
1711 dREQ; 1904 dREQ;
1712 1905
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1906 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1907 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1908 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1716
1717 if (SvPOK (fh_or_path))
1718 {
1719 req->type = REQ_UTIME;
1720 req->ptr1 = SvPVbyte_nolen (req->sv1);
1721 }
1722 else
1723 {
1724 req->type = REQ_FUTIME;
1725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1726 }
1727 1909
1728 REQ_SEND; 1910 REQ_SEND;
1729} 1911}
1730 1912
1731void 1913void
1732aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1914aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1733 PPCODE: 1915 PPCODE:
1734{ 1916{
1735 dREQ; 1917 dREQ;
1736 1918
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1919 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1920 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1740 if (SvPOK (fh_or_path))
1741 {
1742 req->type = REQ_TRUNCATE;
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 }
1745 else
1746 {
1747 req->type = REQ_FTRUNCATE;
1748 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1749 }
1750 1921
1751 REQ_SEND; 1922 REQ_SEND;
1752} 1923}
1753 1924
1754void 1925void
1755aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1926aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1756 PPCODE: 1927 PPCODE:
1757{ 1928{
1758 dREQ; 1929 dREQ;
1759 1930
1760 req->mode = mode; 1931 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1932 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1762
1763 if (SvPOK (fh_or_path))
1764 {
1765 req->type = REQ_CHMOD;
1766 req->ptr1 = SvPVbyte_nolen (req->sv1);
1767 }
1768 else
1769 {
1770 req->type = REQ_FCHMOD;
1771 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1772 }
1773 1933
1774 REQ_SEND; 1934 REQ_SEND;
1775} 1935}
1776 1936
1777void 1937void
1778aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1938aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1779 PPCODE: 1939 PPCODE:
1780{ 1940{
1781 dREQ; 1941 dREQ;
1782 1942
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1943 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1944 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1945 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1786
1787 if (SvPOK (fh_or_path))
1788 {
1789 req->type = REQ_CHOWN;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 }
1792 else
1793 {
1794 req->type = REQ_FCHOWN;
1795 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1796 }
1797 1946
1798 REQ_SEND; 1947 REQ_SEND;
1799} 1948}
1800 1949
1801void 1950void
1951aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1952 PPCODE:
1953{
1954 dREQ;
1955
1956 req->type = EIO_READDIR;
1957 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1958
1959 if (flags & EIO_READDIR_DENTS)
1960 req->int1 |= EIO_READDIR_CUSTOM2;
1961
1962 req_set_path1 (req, pathname);
1963
1964 REQ_SEND;
1965}
1966
1967void
1968aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1969 PPCODE:
1970{
1971 dREQ;
1972
1973 req->type = EIO_MKDIR;
1974 req->int2 = mode;
1975 req_set_path1 (req, pathname);
1976
1977 REQ_SEND;
1978}
1979
1980void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1981aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1803 ALIAS: 1982 ALIAS:
1804 aio_unlink = REQ_UNLINK 1983 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1984 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1985 aio_readdir = EIO_READDIR
1807 PPCODE: 1986 PPCODE:
1808{ 1987{
1809 dREQ; 1988 dREQ;
1810 1989
1811 req->type = ix; 1990 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1991 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814 1992
1815 REQ_SEND; 1993 REQ_SEND;
1816} 1994}
1817 1995
1818void 1996void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->type = REQ_MKDIR;
1825 req->sv1 = newSVsv (pathname);
1826 req->ptr1 = SvPVbyte_nolen (req->sv1);
1827 req->mode = mode;
1828
1829 REQ_SEND;
1830}
1831
1832void
1833aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1997aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1834 ALIAS: 1998 ALIAS:
1835 aio_link = REQ_LINK 1999 aio_link = EIO_LINK
1836 aio_symlink = REQ_SYMLINK 2000 aio_symlink = EIO_SYMLINK
1837 aio_rename = REQ_RENAME 2001 aio_rename = EIO_RENAME
1838 PPCODE: 2002 PPCODE:
1839{ 2003{
2004 eio_wd wd2 = 0;
1840 dREQ; 2005 dREQ;
1841 2006
1842 req->type = ix; 2007 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 2008 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 2009 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 2010 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 2011
1848 REQ_SEND; 2012 REQ_SEND;
1849} 2013}
1850 2014
1851void 2015void
1852aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 2016aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1853 PPCODE: 2017 PPCODE:
1854{ 2018{
2019 eio_wd wd2 = 0;
1855 dREQ; 2020 dREQ;
1856 2021
1857 req->type = REQ_MKNOD; 2022 req->type = EIO_RENAME;
1858 req->sv1 = newSVsv (pathname); 2023 req_set_path1 (req, oldpath);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1); 2024 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1860 req->mode = (mode_t)mode; 2025 req->int2 = flags;
1861 req->offs = dev; 2026 req->int3 = (long)wd2;
1862 2027
1863 REQ_SEND; 2028 REQ_SEND;
1864} 2029}
1865 2030
1866void 2031void
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 2032aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1868 PPCODE: 2033 PPCODE:
1869{ 2034{
1870 dREQ; 2035 dREQ;
2036
2037 req->type = EIO_MKNOD;
2038 req->int2 = (mode_t)mode;
2039 req->offs = dev;
2040 req_set_path1 (req, pathname);
2041
2042 REQ_SEND;
2043}
1871 2044
2045void
2046aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2047 ALIAS:
2048 aio_mtouch = EIO_MTOUCH
2049 aio_msync = EIO_MSYNC
2050 PPCODE:
2051{
2052 STRLEN svlen;
2053 char *svptr = SvPVbyte (data, svlen);
2054 UV len = SvUV (length);
2055
2056 if (flags < 0)
2057 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2058
2059 if (offset < 0)
2060 offset += svlen;
2061
2062 if (offset < 0 || offset > svlen)
2063 croak ("offset outside of scalar");
2064
2065 if (!SvOK (length) || len + offset > svlen)
2066 len = svlen - offset;
2067
2068 {
2069 dREQ;
2070
2071 req->type = ix;
2072 req->sv2 = SvREFCNT_inc (data);
2073 req->ptr2 = (char *)svptr + offset;
2074 req->size = len;
2075 req->int1 = flags;
2076
2077 REQ_SEND;
2078 }
2079}
2080
2081void
2082aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2083 PPCODE:
2084{
2085 STRLEN svlen;
2086 char *svptr = SvPVbyte (data, svlen);
2087 UV len = SvUV (length);
2088
2089 if (offset < 0)
2090 offset += svlen;
2091
2092 if (offset < 0 || offset > svlen)
2093 croak ("offset outside of scalar");
2094
2095 if (!SvOK (length) || len + offset > svlen)
2096 len = svlen - offset;
2097
2098 {
2099 dREQ;
2100
2101 req->type = EIO_MLOCK;
2102 req->sv2 = SvREFCNT_inc (data);
2103 req->ptr2 = (char *)svptr + offset;
2104 req->size = len;
2105
2106 REQ_SEND;
2107 }
2108}
2109
2110void
2111aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2112 PPCODE:
2113{
2114 dREQ;
2115
2116 req->type = EIO_MLOCKALL;
2117 req->int1 = flags;
2118
2119 REQ_SEND;
2120}
2121
2122void
2123aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2124 PPCODE:
2125{
2126 int fd = s_fileno_croak (fh, 0);
2127 dREQ;
2128
2129 req->type = EIO_CUSTOM;
2130 req->sv1 = newSVsv (fh);
2131 req->int1 = fd;
2132
2133 req->feed = fiemap;
2134#if HAVE_FIEMAP
2135 /* keep our fingers crossed that the next two types are 64 bit */
2136 req->offs = start;
2137 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2138 req->int2 = flags;
2139 req->int3 = SvOK (count) ? SvIV (count) : -1;
2140#endif
2141
2142 REQ_SEND;
2143}
2144
2145void
2146aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2147 PPCODE:
2148{
2149 char *svptr = 0;
2150
2151 sv_clear_foreign (data);
2152
2153 if (length) /* known length, directly read into scalar */
2154 {
2155 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2156 svptr = sv_grow (data, length + 1);
2157 else if (SvCUR (data) < length)
2158 croak ("length outside of scalar, and cannot grow");
2159 else
2160 svptr = SvPVbyte_nolen (data);
2161 }
2162
2163 {
2164 dREQ;
2165
2166 req->type = EIO_SLURP;
2167 req_set_path1 (req, pathname);
2168 req->offs = offset;
2169 req->size = length;
2170 req->sv2 = SvREFCNT_inc (data);
2171 req->ptr2 = svptr;
2172
2173 if (!SvREADONLY (data))
2174 {
2175 SvREADONLY_on (data);
2176 req->flags |= FLAG_SV2_RO_OFF;
2177 }
2178
2179 REQ_SEND;
2180 }
2181}
2182
2183void
2184aio_busy (double delay, SV *callback = &PL_sv_undef)
2185 PPCODE:
2186{
2187 dREQ;
2188
1872 req->type = REQ_BUSY; 2189 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 2190 req->nv1 = delay < 0. ? 0. : delay;
1874 2191
1875 REQ_SEND; 2192 REQ_SEND;
1876} 2193}
1877 2194
1878void 2195void
1879aio_group (SV *callback=&PL_sv_undef) 2196aio_group (SV *callback = &PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 2197 PPCODE:
1882{ 2198{
1883 dREQ; 2199 dREQ;
1884 2200
1885 req->type = REQ_GROUP; 2201 req->type = EIO_GROUP;
1886 2202
2203 PUTBACK;
1887 req_send (req); 2204 req_submit (req);
2205 SPAGAIN;
2206
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2207 XPUSHs (req_sv (req, aio_grp_stash));
1889} 2208}
1890 2209
1891void 2210void
1892aio_nop (SV *callback=&PL_sv_undef) 2211aio_nop (SV *callback = &PL_sv_undef)
2212 ALIAS:
2213 aio_nop = EIO_NOP
2214 aio_sync = EIO_SYNC
1893 PPCODE: 2215 PPCODE:
1894{ 2216{
1895 dREQ; 2217 dREQ;
1896 2218
1897 req->type = REQ_NOP; 2219 req->type = ix;
1898 2220
1899 REQ_SEND; 2221 REQ_SEND;
1900} 2222}
1901 2223
1902int 2224int
1903aioreq_pri (int pri = 0) 2225aioreq_pri (int pri = NO_INIT)
1904 PROTOTYPE: ;$
1905 CODE: 2226 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 2227 RETVAL = next_pri;
1907 if (items > 0) 2228 if (items > 0)
1908 { 2229 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 2230 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 2231 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 2232 next_pri = pri;
1912 } 2233 }
1913 OUTPUT: 2234 OUTPUT:
1914 RETVAL 2235 RETVAL
1915 2236
1916void 2237void
1917aioreq_nice (int nice = 0) 2238aioreq_nice (int nice = 0)
1918 CODE: 2239 CODE:
1919 nice = next_pri - nice; 2240 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 2241 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 2242 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 2243 next_pri = nice;
1923 2244
1924void 2245void
1925flush () 2246flush ()
1926 PROTOTYPE:
1927 CODE: 2247 CODE:
1928 while (nreqs) 2248 while (eio_nreqs ())
1929 { 2249 {
1930 poll_wait (); 2250 poll_wait ();
1931 poll_cb (); 2251 poll_cb ();
1932 } 2252 }
1933 2253
1934int 2254int
1935poll() 2255poll ()
1936 PROTOTYPE:
1937 CODE: 2256 CODE:
1938 poll_wait (); 2257 poll_wait ();
1939 RETVAL = poll_cb (); 2258 RETVAL = poll_cb ();
1940 OUTPUT: 2259 OUTPUT:
1941 RETVAL 2260 RETVAL
1942 2261
1943int 2262int
1944poll_fileno() 2263poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 2264 CODE:
1947 RETVAL = respipe [0]; 2265 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 2266 OUTPUT:
1949 RETVAL 2267 RETVAL
1950 2268
1951int 2269int
1952poll_cb(...) 2270poll_cb (...)
1953 PROTOTYPE: 2271 PROTOTYPE:
1954 CODE: 2272 CODE:
1955 RETVAL = poll_cb (); 2273 RETVAL = poll_cb ();
1956 OUTPUT: 2274 OUTPUT:
1957 RETVAL 2275 RETVAL
1958 2276
1959void 2277void
1960poll_wait() 2278poll_wait ()
2279 CODE:
2280 poll_wait ();
2281
2282int
2283nreqs ()
2284 CODE:
2285 RETVAL = eio_nreqs ();
2286 OUTPUT:
2287 RETVAL
2288
2289int
2290nready ()
2291 CODE:
2292 RETVAL = eio_nready ();
2293 OUTPUT:
2294 RETVAL
2295
2296int
2297npending ()
2298 CODE:
2299 RETVAL = eio_npending ();
2300 OUTPUT:
2301 RETVAL
2302
2303int
2304nthreads ()
2305 CODE:
2306 RETVAL = eio_nthreads ();
2307 OUTPUT:
2308 RETVAL
2309
2310int
2311fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2312 CODE:
2313 RETVAL = posix_fadvise (fh, offset, length, advice);
2314 OUTPUT:
2315 RETVAL
2316
2317IV
2318sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2319 CODE:
2320 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2321 OUTPUT:
2322 RETVAL
2323
2324void
2325mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2326 PPCODE:
2327 sv_clear_foreign (scalar);
2328{
2329 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2330 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2331 if (addr == (void *)-1)
2332 XSRETURN_NO;
2333
2334 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2335
2336 if (!(prot & PROT_WRITE))
2337 SvREADONLY_on (scalar);
2338
2339 XSRETURN_YES;
2340}
2341
2342void
2343munmap (SV *scalar)
2344 CODE:
2345 sv_clear_foreign (scalar);
2346
2347SV *
2348mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2349 CODE:
2350{
2351 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2352 void *new;
2353
2354 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2355 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2356
2357 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2358
2359 RETVAL = &PL_sv_no;
2360
2361 if (new != (void *)-1)
2362 {
2363 RETVAL = new == (void *)mg->mg_ptr
2364 ? newSVpvn ("0 but true", 10)
2365 : &PL_sv_yes;
2366
2367 mg->mg_ptr = (char *)new;
2368 mg->mg_obj = (SV *)new_length;
2369
2370 SvPVX (scalar) = mg->mg_ptr;
2371 SvCUR_set (scalar, new_length);
2372 }
2373}
2374 OUTPUT:
2375 RETVAL
2376
2377int
2378madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2379 ALIAS:
2380 mprotect = 1
2381 CODE:
2382{
2383 STRLEN svlen;
2384 void *addr = SvPVbyte (scalar, svlen);
2385 STRLEN len = SvUV (length);
2386
2387 if (offset < 0)
2388 offset += svlen;
2389
2390 if (offset < 0 || offset > svlen)
2391 croak ("offset outside of scalar");
2392
2393 if (!SvOK (length) || len + offset > svlen)
2394 len = svlen - offset;
2395
2396 addr = (void *)(((intptr_t)addr) + offset);
2397 eio_page_align (&addr, &len);
2398
2399 switch (ix)
2400 {
2401 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2402 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2403 }
2404}
2405 OUTPUT:
2406 RETVAL
2407
2408int
2409munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2410 CODE:
2411{
2412 STRLEN svlen;
2413 void *addr = SvPVbyte (scalar, svlen);
2414 size_t len = SvUV (length);
2415
2416 if (offset < 0)
2417 offset += svlen;
2418
2419 if (offset < 0 || offset > svlen)
2420 croak ("offset outside of scalar");
2421
2422 if (!SvOK (length) || len + offset > svlen)
2423 len = svlen - offset;
2424
2425 addr = (void *)(((intptr_t)addr) + offset);
2426 eio_page_align (&addr, &len);
2427#if _POSIX_MEMLOCK_RANGE
2428 RETVAL = munlock (addr, len);
2429#else
2430 RETVAL = EIO_ENOSYS ();
2431#endif
2432}
2433 OUTPUT:
2434 RETVAL
2435
2436int
2437mlockall (int flags)
2438 PROTOTYPE: $;
2439 CODE:
2440 RETVAL = eio_mlockall_sync (flags);
2441 OUTPUT:
2442 RETVAL
2443
2444int
2445munlockall ()
2446 CODE:
2447#if _POSIX_MEMLOCK
2448 munlockall ();
2449#else
2450 RETVAL = EIO_ENOSYS ();
2451#endif
2452 OUTPUT:
2453 RETVAL
2454
2455int
2456statx (SV8 *pathname, int flags, UV mask)
2457 CODE:
2458{
2459 /* undocumented, and might go away, and anyway, should use eio_statx */
2460 SV *wdsv = 0;
2461 SV *pathsv = 0;
2462 eio_wd wd = EIO_CWD;
2463 void *ptr;
2464 int res;
2465
2466 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2467 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2468
2469 SvREFCNT_dec (pathsv);
2470 SvREFCNT_dec (wdsv);
2471}
2472 OUTPUT:
2473 RETVAL
2474
2475U32
2476stx_mode ()
1961 PROTOTYPE: 2477 PROTOTYPE:
1962 CODE: 2478 CODE:
1963 poll_wait (); 2479#if HAVE_STATX
2480 RETVAL = stx.stx_mode;
2481#else
2482 XSRETURN_UNDEF;
2483#endif
2484 OUTPUT:
2485 RETVAL
1964 2486
2487#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2488#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2489#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2490#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2491#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2492#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2493#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2494#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2495#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2496#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2497#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2498#define STATX_OFFSET_size statx_offsetof (stx_size)
2499#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2500#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2501#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2502#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2503#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2504#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2505
2506U32
2507stx_mask ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_mask = STATX_OFFSET_mask
2511 stx_blksize = STATX_OFFSET_blksize
2512 stx_nlink = STATX_OFFSET_nlink
2513 stx_uid = STATX_OFFSET_uid
2514 stx_gid = STATX_OFFSET_gid
2515 stx_rdev_major = STATX_OFFSET_rdev_major
2516 stx_rdev_minor = STATX_OFFSET_rdev_minor
2517 stx_dev_major = STATX_OFFSET_dev_major
2518 stx_dev_minor = STATX_OFFSET_dev_minor
2519 CODE:
2520#if HAVE_STATX
2521 RETVAL = *(__u32 *)((char *)&stx + ix);
2522#else
2523 XSRETURN_UNDEF;
2524#endif
2525 OUTPUT:
2526 RETVAL
2527
2528VAL64
2529stx_attributes ()
2530 PROTOTYPE:
2531 ALIAS:
2532 stx_attributes = STATX_OFFSET_attributes
2533 stx_ino = STATX_OFFSET_ino
2534 stx_size = STATX_OFFSET_size
2535 stx_blocks = STATX_OFFSET_blocks
2536 stx_attributes_mask = STATX_OFFSET_attributes_mask
2537 CODE:
2538#if HAVE_STATX
2539 RETVAL = *(__u64 *)((char *)&stx + ix);
2540#else
2541 XSRETURN_UNDEF;
2542#endif
2543 OUTPUT:
2544 RETVAL
2545
2546NV
2547stx_atime ()
2548 PROTOTYPE:
2549 ALIAS:
2550 stx_atime = STATX_OFFSET_atime
2551 stx_btime = STATX_OFFSET_btime
2552 stx_ctime = STATX_OFFSET_ctime
2553 stx_mtime = STATX_OFFSET_mtime
2554 CODE:
2555#if HAVE_STATX
2556 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2557 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2558#else
2559 XSRETURN_UNDEF;
2560#endif
2561 OUTPUT:
2562 RETVAL
2563
2564VAL64
2565stx_atimesec ()
2566 PROTOTYPE:
2567 ALIAS:
2568 stx_atimesec = STATX_OFFSET_atime
2569 stx_btimesec = STATX_OFFSET_btime
2570 stx_ctimesec = STATX_OFFSET_ctime
2571 stx_mtimesec = STATX_OFFSET_mtime
2572 CODE:
2573#if HAVE_STATX
2574 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2575 RETVAL = ts->tv_sec;
2576#else
2577 XSRETURN_UNDEF;
2578#endif
2579 OUTPUT:
2580 RETVAL
2581
2582U32
2583stx_atimensec ()
2584 PROTOTYPE:
2585 ALIAS:
2586 stx_atimensec = STATX_OFFSET_atime
2587 stx_btimensec = STATX_OFFSET_btime
2588 stx_ctimensec = STATX_OFFSET_ctime
2589 stx_mtimensec = STATX_OFFSET_mtime
2590 CODE:
2591#if HAVE_STATX
2592 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2593 RETVAL = ts->tv_nsec;
2594#else
2595 RETVAL = 0;
2596#endif
2597 OUTPUT:
2598 RETVAL
2599
1965void 2600void
1966setsig (int signum = SIGIO) 2601accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2602 PPCODE:
2603{
2604 SV *retval;
2605#if HAVE_ACCEPT4
2606 socklen_t salen_ = salen ? salen + 1 : 0;
2607
2608 if (salen)
2609 {
2610 sv_upgrade (sockaddr, SVt_PV);
2611 sv_grow (sockaddr, salen_);
2612 }
2613
2614 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2615
2616 retval = newmortalFH (res, O_RDWR);
2617
2618 if (res >= 0 && salen > 0)
2619 {
2620 if (salen_ > salen + 1)
2621 salen_ = salen + 1;
2622
2623 SvPOK_only (sockaddr);
2624 SvCUR_set (sockaddr, salen_);
2625 }
2626#else
2627 errno = ENOSYS;
2628 retval = &PL_sv_undef;
2629#endif
2630 XPUSHs (retval);
2631}
2632
2633ssize_t
2634splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2635 CODE:
2636{
2637#if HAVE_LINUX_SPLICE
2638 loff_t off_in_, off_out_;
2639 RETVAL = splice (
2640 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2641 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2642 length, flags
2643 );
2644#else
2645 RETVAL = EIO_ENOSYS ();
2646#endif
2647}
2648 OUTPUT:
2649 RETVAL
2650
2651ssize_t
2652tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2653 CODE:
2654#if HAVE_LINUX_SPLICE
2655 RETVAL = tee (rfh, wfh, length, flags);
2656#else
2657 RETVAL = EIO_ENOSYS ();
2658#endif
2659 OUTPUT:
2660 RETVAL
2661
2662int
2663pipesize (aio_rfd rfh, int new_size = -1)
2664 PROTOTYPE: $;$
2665 CODE:
2666#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2667 if (new_size >= 0)
2668 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2669 else
2670 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2671#else
2672 errno = ENOSYS;
2673 RETVAL = -1;
2674#endif
2675 OUTPUT:
2676 RETVAL
2677
2678void
2679pipe2 (int flags = 0)
1967 PROTOTYPE: ;$ 2680 PROTOTYPE: ;$
1968 CODE:
1969{
1970 if (block_sig_level)
1971 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1972
1973 X_LOCK (reslock);
1974 main_tid = pthread_self ();
1975 main_sig = signum;
1976 X_UNLOCK (reslock);
1977
1978 if (main_sig && npending)
1979 pthread_kill (main_tid, main_sig);
1980}
1981
1982void
1983aio_block (SV *cb)
1984 PROTOTYPE: &
1985 PPCODE: 2681 PPCODE:
1986{ 2682{
1987 int count; 2683 int fd[2];
2684 int res;
1988 2685
1989 block_sig (); 2686 if (flags)
1990 PUSHMARK (SP); 2687#if HAVE_PIPE2
1991 PUTBACK; 2688 res = pipe2 (fd, flags);
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2689#else
1993 SPAGAIN; 2690 res = (errno = ENOSYS, -1);
1994 unblock_sig (); 2691#endif
2692 else
2693 res = pipe (fd);
1995 2694
1996 if (SvTRUE (ERRSV)) 2695 if (!res)
1997 croak (0); 2696 {
2697 EXTEND (SP, 2);
2698 PUSHs (newmortalFH (fd[0], O_RDONLY));
2699 PUSHs (newmortalFH (fd[1], O_WRONLY));
2700 }
2701}
1998 2702
1999 XSRETURN (count); 2703void
2704pidfd_open (int pid, unsigned int flags = 0)
2705 PPCODE:
2706{
2707 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2708 int fd = syscall (SYS_pidfd_open, pid, flags);
2709 XPUSHs (newmortalFH (fd, O_RDWR));
2000} 2710}
2001 2711
2002int 2712int
2003nreqs() 2713pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2004 PROTOTYPE: 2714 PPCODE:
2715{
2716 int res;
2717#if HAVE_SIGINFO_T
2718 siginfo_t si = { 0 };
2719
2720 if (SvOK (siginfo))
2721 {
2722 HV *hv;
2723 SV **svp;
2724
2725 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2726 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2727
2728 hv = (HV *)SvRV (siginfo);
2729
2730 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2731 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2732 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2733 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2734 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2735 }
2736
2737 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2738 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2739#else
2740 res = (errno = ENOSYS, -1);
2741#endif
2742
2743 XPUSHs (sv_2mortal (newSViv (res)));
2744}
2745
2746void
2747pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2748 PPCODE:
2749{
2750 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2751 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2752 XPUSHs (newmortalFH (fd, O_RDWR));
2753}
2754
2755void
2756eventfd (unsigned int initval = 0, int flags = 0)
2757 PPCODE:
2758{
2759 int fd;
2760#if HAVE_EVENTFD
2761 fd = eventfd (initval, flags);
2762#else
2763 fd = (errno = ENOSYS, -1);
2764#endif
2765
2766 XPUSHs (newmortalFH (fd, O_RDWR));
2767}
2768
2769void
2770timerfd_create (int clockid, int flags = 0)
2771 PPCODE:
2772{
2773 int fd;
2774#if HAVE_TIMERFD
2775 fd = timerfd_create (clockid, flags);
2776#else
2777 fd = (errno = ENOSYS, -1);
2778#endif
2779
2780 XPUSHs (newmortalFH (fd, O_RDWR));
2781}
2782
2783void
2784timerfd_settime (SV *fh, int flags, NV interval, NV value)
2785 PPCODE:
2786{
2787 int fd = s_fileno_croak (fh, 0);
2788#if HAVE_TIMERFD
2789 int res;
2790 struct itimerspec its, ots;
2791
2792 ts_set (&its.it_interval, interval);
2793 ts_set (&its.it_value , value);
2794 res = timerfd_settime (fd, flags, &its, &ots);
2795
2796 if (!res)
2797 {
2798 EXTEND (SP, 2);
2799 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2800 PUSHs (newSVnv (ts_get (&ots.it_value)));
2801 }
2802#else
2803 errno = ENOSYS;
2804#endif
2805}
2806
2807void
2808timerfd_gettime (SV *fh)
2809 PPCODE:
2810{
2811 int fd = s_fileno_croak (fh, 0);
2812#if HAVE_TIMERFD
2813 int res;
2814 struct itimerspec ots;
2815 res = timerfd_gettime (fd, &ots);
2816
2817 if (!res)
2818 {
2819 EXTEND (SP, 2);
2820 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2821 PUSHs (newSVnv (ts_get (&ots.it_value)));
2822 }
2823#else
2824 errno = ENOSYS;
2825#endif
2826}
2827
2828void
2829memfd_create (SV8 *pathname, int flags = 0)
2830 PPCODE:
2831{
2832 int fd;
2833#if HAVE_MEMFD_CREATE
2834 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2835#else
2836 fd = (errno = ENOSYS, -1);
2837#endif
2838
2839 XPUSHs (newmortalFH (fd, O_RDWR));
2840}
2841
2842int
2843fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
2005 CODE: 2844 CODE:
2006 RETVAL = nreqs; 2845{
2846 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2847 char **envp, **argv;
2848 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2849 if (!SvOK (envs))
2850 {
2851 extern char **environ;
2852 envp = environ;
2853 }
2854 else
2855 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2856#if _POSIX_VERSION >= 200809L
2857 RETVAL = fexecve (fd, argv, envp);
2858#else
2859 RETVAL = (errno = ENOSYS, -1);
2860#endif
2861}
2862 OUTPUT: RETVAL
2863
2864UV
2865get_fdlimit ()
2866 CODE:
2867#if HAVE_RLIMITS
2868 struct rlimit rl;
2869 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2870 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2871#endif
2872 XSRETURN_UNDEF;
2007 OUTPUT: 2873 OUTPUT:
2008 RETVAL 2874 RETVAL
2009 2875
2010int 2876void
2011nready() 2877min_fdlimit (UV limit = 0x7fffffffU)
2012 PROTOTYPE:
2013 CODE: 2878 CODE:
2014 RETVAL = get_nready (); 2879{
2015 OUTPUT: 2880#if HAVE_RLIMITS
2016 RETVAL 2881 struct rlimit rl;
2882 rlim_t orig_rlim_max;
2883 UV bit;
2017 2884
2018int 2885 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2019npending() 2886 goto fail;
2020 PROTOTYPE: 2887
2888 if (rl.rlim_cur == RLIM_INFINITY)
2889 XSRETURN_YES;
2890
2891 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2892
2893 if (rl.rlim_cur < limit)
2894 {
2895 rl.rlim_cur = limit;
2896
2897 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2898 rl.rlim_max = rl.rlim_cur;
2899 }
2900
2901 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2902 XSRETURN_YES;
2903
2904 if (errno == EPERM)
2905 {
2906 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2907 /* our limit overflows a system-wide limit */
2908 /* try an adaptive algorithm, but do not lower the hardlimit */
2909 rl.rlim_max = 0;
2910 for (bit = 0x40000000U; bit; bit >>= 1)
2911 {
2912 rl.rlim_max |= bit;
2913 rl.rlim_cur = rl.rlim_max;
2914
2915 /* never decrease the hard limit */
2916 if (rl.rlim_max < orig_rlim_max)
2917 break;
2918
2919 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2920 rl.rlim_max &= ~bit; /* too high, remove bit again */
2921 }
2922
2923 /* now, raise the soft limit to the max permitted */
2924 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2925 {
2926 rl.rlim_cur = rl.rlim_max;
2927 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2928 errno = EPERM;
2929 }
2930 }
2931#endif
2932 fail:
2933 XSRETURN_UNDEF;
2934}
2935
2936void _on_next_submit (SV *cb)
2021 CODE: 2937 CODE:
2022 RETVAL = get_npending (); 2938 SvREFCNT_dec (on_next_submit);
2023 OUTPUT: 2939 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2024 RETVAL
2025 2940
2026int 2941PROTOTYPES: DISABLE
2027nthreads() 2942
2028 PROTOTYPE: 2943MODULE = IO::AIO PACKAGE = IO::AIO::WD
2944
2945BOOT:
2946{
2947 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2948 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2949}
2950
2951void
2952DESTROY (SV *self)
2029 CODE: 2953 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2954{
2031 RETVAL = started; 2955 aio_wd wd = SvAIO_WD (self);
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 2956#if HAVE_AT
2033 OUTPUT: 2957 {
2034 RETVAL 2958 SV *callback = &PL_sv_undef;
2035 2959 dREQ; /* clobbers next_pri :/ */
2036PROTOTYPES: DISABLE 2960 next_pri = req->pri; /* restore next_pri */
2961 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2962 req->type = EIO_WD_CLOSE;
2963 req->wd = wd;
2964 REQ_SEND;
2965 }
2966#else
2967 eio_wd_close_sync (wd);
2968#endif
2969}
2037 2970
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2971MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 2972
2040void 2973void
2041cancel (aio_req_ornot req) 2974cancel (aio_req_ornot req)
2042 CODE: 2975 CODE:
2043 req_cancel (req); 2976 eio_cancel (req);
2044 2977
2045void 2978void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2979cb (aio_req_ornot req, SV *callback = NO_INIT)
2047 CODE: 2980 PPCODE:
2981{
2982 if (GIMME_V != G_VOID)
2983 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2984
2985 if (items > 1)
2986 {
2987 SV *cb_cv = get_cb (callback);
2988
2048 SvREFCNT_dec (req->callback); 2989 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 2990 req->callback = SvREFCNT_inc (cb_cv);
2991 }
2992}
2050 2993
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2994MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 2995
2053void 2996void
2054add (aio_req grp, ...) 2997add (aio_req grp, ...)
2055 PPCODE: 2998 PPCODE:
2056{ 2999{
2057 int i; 3000 int i;
2058 aio_req req;
2059
2060 if (main_sig && !block_sig_level)
2061 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2062 3001
2063 if (grp->int1 == 2) 3002 if (grp->int1 == 2)
2064 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 3003 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2065 3004
2066 for (i = 1; i < items; ++i ) 3005 for (i = 1; i < items; ++i )
2067 { 3006 {
3007 aio_req req;
3008
2068 if (GIMME_V != G_VOID) 3009 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3010 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 3011
2071 req = SvAIO_REQ (ST (i)); 3012 req = SvAIO_REQ (ST (i));
2072 3013
2073 if (req) 3014 if (req)
2074 { 3015 eio_grp_add (grp, req);
2075 ++grp->size;
2076 req->grp = grp;
2077
2078 req->grp_prev = 0;
2079 req->grp_next = grp->grp_first;
2080
2081 if (grp->grp_first)
2082 grp->grp_first->grp_prev = req;
2083
2084 grp->grp_first = req;
2085 }
2086 } 3016 }
2087} 3017}
2088 3018
2089void 3019void
2090cancel_subs (aio_req_ornot req) 3020cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 3029 AV *av;
2100 3030
2101 grp->errorno = errno; 3031 grp->errorno = errno;
2102 3032
2103 av = newAV (); 3033 av = newAV ();
3034 av_extend (av, items - 1);
2104 3035
2105 for (i = 1; i < items; ++i ) 3036 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 3037 av_push (av, newSVsv (ST (i)));
2107 3038
2108 SvREFCNT_dec (grp->sv1); 3039 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 3046 grp->errorno = errorno;
2116 3047
2117void 3048void
2118limit (aio_req grp, int limit) 3049limit (aio_req grp, int limit)
2119 CODE: 3050 CODE:
2120 grp->int2 = limit; 3051 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 3052
2123void 3053void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 3054feed (aio_req grp, SV *callback = &PL_sv_undef)
2125 CODE: 3055 CODE:
2126{ 3056{
2127 SvREFCNT_dec (grp->sv2); 3057 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 3058 grp->sv2 = newSVsv (callback);
3059 grp->feed = aio_grp_feed;
2129 3060
2130 if (grp->int2 <= 0) 3061 if (grp->int2 <= 0)
2131 grp->int2 = 2; 3062 grp->int2 = 2;
2132 3063
2133 aio_grp_feed (grp); 3064 eio_grp_limit (grp, grp->int2);
2134} 3065}
2135 3066

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