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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 1.275 by root, Mon Mar 18 23:52:09 2019 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>
62# include <unistd.h> 89 #include <unistd.h>
63# include <utime.h> 90 #include <utime.h>
64# include <signal.h> 91 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 92
67#endif 93 #define EIO_STRUCT_STAT Stat_t
68 94
69#if HAVE_SENDFILE 95#endif
70# if __linux 96
71# include <sys/sendfile.h> 97/*****************************************************************************/
72# elif __freebsd 98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
73# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
74# include <sys/uio.h> 123# include <sys/uio.h>
75# elif __hpux 124#endif
76# include <sys/socket.h> 125
77# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
78# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
79# else 207# else
80# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 209# endif
82#endif 210#endif
83 211
84/* number of seconds after which idle threads exit */ 212#ifndef makedev
85#define IDLE_TIMEOUT 10 213# 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 214#endif
91 215#ifndef major
92/* buffer size for various temporary buffers */ 216# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
101 221
102static HV *stash; 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
223#ifdef __sun
224# undef PAGESIZE
225#endif
103 226
104#define dBUF \ 227#if PAGESIZE <= 0
105 char *aio_buf; \ 228# define PAGESIZE sysconf (_SC_PAGESIZE)
106 X_LOCK (wrklock); \ 229#endif
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 230
108 X_UNLOCK (wrklock); \ 231/*****************************************************************************/
109 if (!aio_buf) \ 232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
110 return -1; 266 return 0;
267}
111 268
112typedef SV SV8; /* byte-sv, used for argument-checking */ 269static MGVTBL mmap_vtbl = {
113 270 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}; 271};
131 272
132#define AIO_REQ_KLASS "IO::AIO::REQ" 273static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 275{
137 struct aio_cb *volatile next; 276 free (mg->mg_ptr);
277 mg->mg_obj = 0; /* just in case */
138 278
139 SV *callback; 279 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;
146 280
147 STRLEN stroffset; 281 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 283
153 unsigned char flags; 284 SvCUR_set (sv, 0);
154 unsigned char pri; 285 SvPVX (sv) = 0;
286 SvOK_off (sv);
155 287
156 SV *self; /* the perl counterpart of this request, if any */ 288 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 289}
158} aio_cb;
159 290
160enum { 291static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 292 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}; 293};
165 294
166typedef aio_cb *aio_req; 295/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 296
169enum { 297/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 298ecb_noinline
171 PRI_MAX = 4, 299static void
172 300sv_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{ 301{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 302 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 303
190static thread_t main_tid; 304 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 305 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 306 ->mg_obj = (SV *)length;
193 307
194void block_sig () 308 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 309
198 if (block_sig_level++) 310 if (SvLEN (sv))
311 Safefree (SvPVX (sv));
312
313 SvPVX (sv) = (char *)addr;
314 SvCUR_set (sv, length);
315 SvLEN_set (sv, 0);
316 SvPOK_only (sv);
317}
318
319static void
320sv_clear_foreign (SV *sv)
321{
322 /* todo: iterate over magic and only free ours, but of course */
323 /* the perl5porters will call that (correct) behaviour buggy */
324 sv_unmagic (sv, FOREIGN_MAGIC);
325}
326
327/*****************************************************************************/
328
329/* defines all sorts of constants to 0 unless they are already defined */
330/* also provides const_iv_ and const_niv_ macros for them */
331#include "def0.h"
332
333/*****************************************************************************/
334
335static void
336fiemap (eio_req *req)
337{
338 req->result = -1;
339
340#if HAVE_FIEMAP
341 /* assume some c99 */
342 struct fiemap *fiemap = 0;
343 size_t end_offset;
344 int count = req->int3;
345
346 req->flags |= EIO_FLAG_PTR1_FREE;
347
348 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
349 /* increase in 3.5kb steps */
350 if (count < 0)
351 count = 8;
352
353 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 errno = ENOMEM;
355 if (!fiemap)
199 return; 356 return;
200 357
201 if (!main_sig) 358 req->ptr1 = fiemap;
359
360 fiemap->fm_start = req->offs;
361 fiemap->fm_length = req->size;
362 fiemap->fm_flags = req->int2;
363 fiemap->fm_extent_count = count;
364
365 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 366 return;
203 367
204 sigemptyset (&ss); 368 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 369 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 370 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 371 goto done;
208 372
209void unblock_sig () 373 /* else we have to loop -
210{ 374 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 375 * number of extents needed, but linux often feels like not returning all
376 * extents, without telling us it left any out. this complicates
377 * this quite a bit.
378 */
212 379
213 if (--block_sig_level) 380 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 381
216 if (!main_sig) 382 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 { 383 {
249 closedir (wrk->dirp); 384 /* 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; 385 char scratch[3072];
251 } 386 struct fiemap *incmap = (struct fiemap *)scratch;
252 387
253 if (wrk->dbuf) 388 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 389 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 390 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 391 incmap->fm_flags = fiemap->fm_flags;
257 } 392 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 393
260static void worker_free (worker *wrk) 394 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; 395 return;
355 396
356 --q->size; 397 if (!incmap->fm_mapped_extents)
398 goto done;
357 399
358 for (pri = NUM_PRI; pri--; ) 400 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 401 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 402 errno = ENOMEM;
361
362 if (req) 403 if (!fiemap)
404 return;
405
406 req->ptr1 = fiemap;
407
408 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 409 {
364 if (!(q->qs[pri] = req->next)) 410 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 411
367 return req; 412 if (e->fe_logical + e->fe_length >= end_offset)
413 goto done;
414
415 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
416
417 if (e->fe_flags & FIEMAP_EXTENT_LAST)
418 goto done;
419
368 } 420 }
369 } 421 }
370 422
371 abort (); 423done:
372} 424 req->result = 0;
373 425
374static int poll_cb (); 426#else
375static int req_invoke (aio_req req); 427 errno = ENOSYS;
428#endif
429}
430
431/*****************************************************************************/
432
433static int close_fd; /* dummy fd to close fds via dup2 */
434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
442#endif
443
444enum {
445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
446};
447
448typedef eio_req *aio_req;
449typedef eio_req *aio_req_ornot;
450typedef eio_wd aio_wd;
451
452static SV *on_next_submit;
453static int next_pri = EIO_PRI_DEFAULT;
454static int max_outstanding;
455
456static s_epipe respipe;
457
376static void req_destroy (aio_req req); 458static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 459static void req_cancel (aio_req req);
378 460
461static void
462want_poll (void)
463{
464 /* write a dummy byte to the pipe so fh becomes ready */
465 s_epipe_signal (&respipe);
466}
467
468static void
469done_poll (void)
470{
471 /* read any signals sent by the worker threads */
472 s_epipe_drain (&respipe);
473}
474
379/* must be called at most once */ 475/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 476ecb_noinline
477static SV *
478req_sv (aio_req req, HV *stash)
381{ 479{
382 if (!req->self) 480 if (!req->self)
383 { 481 {
384 req->self = (SV *)newHV (); 482 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 483 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 484 }
387 485
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 486 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 487}
390 488
391static aio_req SvAIO_REQ (SV *sv) 489static SV *
490newSVaio_wd (aio_wd wd)
491{
492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
493}
494
495ecb_noinline
496static aio_req
497SvAIO_REQ (SV *sv)
392{ 498{
393 MAGIC *mg; 499 MAGIC *mg;
394 500
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 501 if (!SvROK (sv)
502 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
503 || (SvSTASH (SvRV (sv)) != aio_grp_stash
504 && SvSTASH (SvRV (sv)) != aio_req_stash
505 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 506 croak ("object of class IO::AIO::REQ expected");
397 507
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 508 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 509
400 return mg ? (aio_req)mg->mg_ptr : 0; 510 return mg ? (aio_req)mg->mg_ptr : 0;
401} 511}
402 512
513static aio_wd
514SvAIO_WD (SV *sv)
515{
516 if (!SvROK (sv)
517 || SvTYPE (SvRV (sv)) != SVt_PVMG
518 || SvSTASH (SvRV (sv)) != aio_wd_stash)
519 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
520
521 return (aio_wd)(long)SvIVX (SvRV (sv));
522}
523
524static SV *
525newmortalFH (int fd, int flags)
526{
527 if (fd < 0)
528 return &PL_sv_undef;
529
530 GV *gv = (GV *)sv_newmortal ();
531 char sym[64];
532 int symlen;
533
534 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
535 gv_init (gv, aio_stash, sym, symlen, 0);
536
537 symlen = snprintf (
538 sym,
539 sizeof (sym),
540 "%s&=%d",
541 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
542 fd
543 );
544
545 return do_open (gv, sym, symlen, 0, 0, 0, 0)
546 ? (SV *)gv : &PL_sv_undef;
547}
548
549static void
403static void aio_grp_feed (aio_req grp) 550aio_grp_feed (aio_req grp)
404{ 551{
405 block_sig (); 552 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 553 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 554 dSP;
414 555
415 ENTER; 556 ENTER;
416 SAVETMPS; 557 SAVETMPS;
417 PUSHMARK (SP); 558 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 559 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 560 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 561 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 562 SPAGAIN;
422 FREETMPS; 563 FREETMPS;
423 LEAVE; 564 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 } 565 }
434
435 unblock_sig ();
436} 566}
437 567
438static void aio_grp_dec (aio_req grp) 568ecb_noinline
569static void
570req_submit (eio_req *req)
439{ 571{
440 --grp->size; 572 eio_submit (req);
441 573
442 /* call feeder, if applicable */ 574 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 575 {
448 block_sig (); 576 dSP;
577 SV *cb = sv_2mortal (on_next_submit);
449 578
450 if (!req_invoke (grp)) 579 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 580
457 req_destroy (grp); 581 PUSHMARK (SP);
458 unblock_sig (); 582 PUTBACK;
583 call_sv (cb, G_DISCARD | G_EVAL);
459 } 584 }
460} 585}
461 586
587static int
462static int req_invoke (aio_req req) 588req_invoke (eio_req *req)
463{ 589{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 590 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 591 SvREADONLY_off (req->sv2);
468 592
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 593 if (!EIO_CANCELLED (req) && req->callback)
470 { 594 {
595 dSP;
596 static SV *sv_result_cache; /* caches the result integer SV */
597 SV *sv_result;
598
471 ENTER; 599 ENTER;
472 SAVETMPS; 600 SAVETMPS;
473 PUSHMARK (SP); 601 PUSHMARK (SP);
474 EXTEND (SP, 1); 602 EXTEND (SP, 1);
475 603
604 /* do not recreate the result IV from scratch each time */
605 if (expect_true (sv_result_cache))
606 {
607 sv_result = sv_result_cache; sv_result_cache = 0;
608 SvIV_set (sv_result, req->result);
609 SvIOK_only (sv_result);
610 }
611 else
612 {
613 sv_result = newSViv (req->result);
614 SvREADONLY_on (sv_result);
615 }
616
476 switch (req->type) 617 switch (req->type)
477 { 618 {
619 case EIO_WD_OPEN:
620 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
621 break;
622
478 case REQ_READDIR: 623 case EIO_READDIR:
479 { 624 {
480 SV *rv = &PL_sv_undef; 625 SV *rv = &PL_sv_undef;
481 626
482 if (req->result >= 0) 627 if (req->result >= 0)
483 { 628 {
484 int i; 629 int i;
485 char *buf = req->ptr2; 630 char *names = (char *)req->ptr2;
631 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 632 AV *av = newAV ();
487 633
488 av_extend (av, req->result - 1); 634 av_extend (av, req->result - 1);
489 635
490 for (i = 0; i < req->result; ++i) 636 for (i = 0; i < req->result; ++i)
491 { 637 {
492 SV *sv = newSVpv (buf, 0); 638 if (req->int1 & EIO_READDIR_DENTS)
639 {
640 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 641
642 if (req->int1 & EIO_READDIR_CUSTOM2)
643 {
644 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
645 AV *avent = newAV ();
646
647 av_extend (avent, 2);
648
649 if (!sv_type [ent->type])
650 {
651 sv_type [ent->type] = newSViv (ent->type);
652 SvREADONLY_on (sv_type [ent->type]);
653 }
654
655 av_store (avent, 0, namesv);
656 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
657 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
658
659 av_store (av, i, newRV_noinc ((SV *)avent));
660 }
661 else
494 av_store (av, i, sv); 662 av_store (av, i, namesv);
663
664 ++ent;
665 }
666 else
667 {
668 SV *name = newSVpv (names, 0);
669 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 670 names += SvCUR (name) + 1;
671 }
496 } 672 }
497 673
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 674 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 675 }
500 676
501 PUSHs (rv); 677 PUSHs (rv);
678
679 if (req->int1 & EIO_READDIR_CUSTOM1)
680 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 681 }
503 break; 682 break;
504 683
505 case REQ_OPEN: 684 case EIO_OPEN:
685 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
686 break;
687
688 case EIO_STATVFS:
689 case EIO_FSTATVFS:
506 { 690 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 691 SV *rv = &PL_sv_undef;
509 692
693#ifndef _WIN32
510 if (req->result >= 0) 694 if (req->result >= 0)
511 { 695 {
696 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 697 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 698 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 699 * chooses to make it a struct.
515 int symlen;
516 700 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 701 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 702 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 703
520 symlen = snprintf ( 704 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 );
527 705
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 706 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 707 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
708 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
709 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
710 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
711 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
712 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
713 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
714 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
715 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
716 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 717 }
718#endif
531 719
532 XPUSHs (fh); 720 PUSHs (rv);
533 } 721 }
722
534 break; 723 break;
535 724
536 case REQ_GROUP: 725 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 726 req->int1 = 2; /* mark group as finished */
538 727
539 if (req->sv1) 728 if (req->sv1)
540 { 729 {
541 int i; 730 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 734 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 735 PUSHs (*av_fetch (av, i, 0));
547 } 736 }
548 break; 737 break;
549 738
550 case REQ_NOP: 739 case EIO_NOP:
551 case REQ_BUSY: 740 case EIO_BUSY:
552 break; 741 break;
553 742
554 case REQ_READLINK: 743 case EIO_READLINK:
744 case EIO_REALPATH:
555 if (req->result > 0) 745 if (req->result > 0)
746 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
747 break;
748
749 case EIO_STAT:
750 case EIO_LSTAT:
751 case EIO_FSTAT:
752 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
753
754 if (!(PL_laststatval = req->result))
755 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
756 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
757
758 PUSHs (sv_result);
759 break;
760
761 case EIO_SEEK:
762 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
763 break;
764
765 case EIO_READ:
766 {
767 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
768 *SvEND (req->sv2) = 0;
769 SvPOK_only (req->sv2);
770 SvSETMAGIC (req->sv2);
771 PUSHs (sv_result);
772 }
773 break;
774
775 case EIO_SLURP:
776 {
777 if (req->result >= 0)
778 {
779 /* if length was originally not known, we steal the malloc'ed memory */
780 if (req->flags & EIO_FLAG_PTR2_FREE)
781 {
782 req->flags &= ~EIO_FLAG_PTR2_FREE;
783 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
784 }
785 else
786 {
787 SvCUR_set (req->sv2, req->result);
788 *SvEND (req->sv2) = 0;
789 SvPOK_only (req->sv2);
790 }
791
792 SvSETMAGIC (req->sv2);
793 }
794
795 PUSHs (sv_result);
796 }
797 break;
798
799 case EIO_CUSTOM:
800 if (req->feed == fiemap)
556 { 801 {
557 SvCUR_set (req->sv2, req->result); 802#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 803 if (!req->result)
804 {
805 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
806
807 if (fiemap->fm_extent_count)
808 {
809 AV *av = newAV ();
810 int i;
811
812 while (fiemap->fm_mapped_extents)
813 {
814 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
815 AV *ext_av = newAV ();
816
817 av_store (ext_av, 3, newSVuv (extent->fe_flags));
818 av_store (ext_av, 2, newSVval64 (extent->fe_length));
819 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
820 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
821
822 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
823 }
824
825 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
826 }
827 else
828 {
829 SvIV_set (sv_result, fiemap->fm_mapped_extents);
830 PUSHs (sv_result);
831 }
832 }
833#endif
560 } 834 }
835 else
836 PUSHs (sv_result);
561 break; 837 break;
562 838
563 case REQ_STAT: 839#if 0
564 case REQ_LSTAT: 840 case EIO_CLOSE:
565 case REQ_FSTAT: 841 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; 842 break;
843#endif
571 844
572 case REQ_READ: 845 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)); 846 if (req->result > 0)
574 *SvEND (req->sv2) = 0; 847 SvIV_set (sv_result, 0);
575 PUSHs (sv_2mortal (newSViv (req->result))); 848 /* FALLTHROUGH */
576 break;
577 849
578 default: 850 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 851 PUSHs (sv_result);
580 break; 852 break;
581 } 853 }
582 854
583 errno = req->errorno; 855 errno = req->errorno;
584 856
585 PUTBACK; 857 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL); 858 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 859 SPAGAIN;
860
861 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
862 SvREFCNT_dec (sv_result);
863 else
864 sv_result_cache = sv_result;
588 865
589 FREETMPS; 866 FREETMPS;
590 LEAVE; 867 LEAVE;
868
869 PUTBACK;
591 } 870 }
592 871
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); 872 return !!SvTRUE (ERRSV);
608} 873}
609 874
875static void
610static void req_destroy (aio_req req) 876req_destroy (aio_req req)
611{ 877{
612 if (req->self) 878 if (req->self)
613 { 879 {
614 sv_unmagic (req->self, PERL_MAGIC_ext); 880 sv_unmagic (req->self, PERL_MAGIC_ext);
615 SvREFCNT_dec (req->self); 881 SvREFCNT_dec (req->self);
616 } 882 }
617 883
618 SvREFCNT_dec (req->sv1); 884 SvREFCNT_dec (req->sv1);
619 SvREFCNT_dec (req->sv2); 885 SvREFCNT_dec (req->sv2);
886 SvREFCNT_dec (req->sv3);
887 SvREFCNT_dec (req->sv4);
620 SvREFCNT_dec (req->callback); 888 SvREFCNT_dec (req->callback);
621 889
622 if (req->flags & FLAG_PTR2_FREE)
623 free (req->ptr2);
624
625 Safefree (req); 890 free (req);
626} 891}
627 892
893static void
628static void req_cancel_subs (aio_req grp) 894req_cancel_subs (aio_req grp)
629{ 895{
630 aio_req sub;
631
632 if (grp->type != REQ_GROUP) 896 if (grp->type != EIO_GROUP)
633 return; 897 return;
634 898
635 SvREFCNT_dec (grp->sv2); 899 SvREFCNT_dec (grp->sv2);
636 grp->sv2 = 0; 900 grp->sv2 = 0;
637 901
638 for (sub = grp->grp_first; sub; sub = sub->grp_next) 902 eio_grp_cancel (grp);
639 req_cancel (sub);
640} 903}
641 904
642static void req_cancel (aio_req req) 905ecb_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 906static void
656create_respipe () 907create_respipe (void)
657{ 908{
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)) 909 if (s_epipe_renew (&respipe))
667#endif
668 croak ("unable to initialize result pipe"); 910 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} 911}
692 912
693X_THREAD_PROC (aio_proc); 913static void
694 914poll_wait (void)
695static void start_thread (void)
696{ 915{
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) 916 while (eio_nreqs ())
793 { 917 {
794 int size; 918 int size;
795 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 919
920 X_LOCK (EIO_POOL->reslock);
796 size = res_queue.size; 921 size = EIO_POOL->res_queue.size;
797 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 922 X_UNLOCK (EIO_POOL->reslock);
798 923
799 if (size) 924 if (size)
800 return; 925 return;
801 926
802 maybe_start_thread (); 927 etp_maybe_start_thread (EIO_POOL);
803 928
804 FD_ZERO (&rfd); 929 s_epipe_wait (&respipe);
805 FD_SET (respipe [0], &rfd);
806
807 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
808 } 930 }
809} 931}
810 932
811static int poll_cb () 933static int
934poll_cb (void)
812{ 935{
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 (;;) 936 for (;;)
826 { 937 {
827 for (;;) 938 int res = eio_poll ();
939
940 if (res > 0)
941 croak (0);
942
943 if (!max_outstanding || max_outstanding > eio_nreqs ())
944 return res;
945
946 poll_wait ();
947 }
948}
949
950ecb_cold
951static void
952reinit (void)
953{
954 create_respipe ();
955
956 if (eio_init (want_poll, done_poll) < 0)
957 croak ("IO::AIO: unable to initialise eio library");
958}
959
960/*****************************************************************************/
961
962static SV *
963get_cb (SV *cb_sv)
964{
965 SvGETMAGIC (cb_sv);
966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
967}
968
969ecb_noinline
970static aio_req ecb_noinline
971dreq (SV *callback)
972{
973 SV *cb_cv;
974 aio_req req;
975 int req_pri = next_pri;
976 next_pri = EIO_PRI_DEFAULT;
977
978 cb_cv = get_cb (callback);
979
980 req = calloc (sizeof (*req), 1);
981 if (!req)
982 croak ("out of memory during eio_req allocation");
983
984 req->callback = SvREFCNT_inc (cb_cv);
985 req->pri = req_pri;
986
987 return req;
988}
989
990#define dREQ \
991 aio_req req = dreq (callback); \
992
993#define REQ_SEND \
994 PUTBACK; \
995 req_submit (req); \
996 SPAGAIN; \
997 \
998 if (GIMME_V != G_VOID) \
999 XPUSHs (req_sv (req, aio_req_stash));
1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1002ecb_inline
1003void
1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1005{
1006 if (expect_false (SvROK (path)))
1007 {
1008 SV *rv = SvRV (path);
1009 SV *wdob;
1010
1011 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
828 { 1012 {
829 maybe_start_thread (); 1013 path = AvARRAY (rv)[1];
1014 wdob = AvARRAY (rv)[0];
830 1015
831 X_LOCK (reslock); 1016 if (SvOK (wdob))
832 req = reqq_shift (&res_queue);
833
834 if (req)
835 { 1017 {
836 --npending; 1018 *wd = SvAIO_WD (wdob);
837 1019 *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 } 1020 }
859 else 1021 else
860 { 1022 *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 } 1023 }
1024 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1025 {
1026 *wd = (aio_wd)(long)SvIVX (rv);
1027 *wdsv = SvREFCNT_inc_NN (rv);
1028 *ptr = ".";
1029 return; /* path set to "." */
1030 }
1031 else
1032 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1033 }
884 1034
885 if (nreqs <= max_outstanding) 1035 *pathsv = newSVsv (path);
1036 *ptr = SvPVbyte_nolen (*pathsv);
1037}
1038
1039ecb_noinline
1040static void
1041req_set_path1 (aio_req req, SV *path)
1042{
1043 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1044}
1045
1046ecb_noinline
1047static void
1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1049{
1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1051
1052 switch (SvTYPE (rv))
1053 {
1054 case SVt_PVIO:
1055 case SVt_PVLV:
1056 case SVt_PVGV:
1057 req->type = type_fh;
1058 req->sv1 = newSVsv (fh_or_path);
1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
886 break; 1060 break;
887 1061
888 poll_wait (); 1062 default:
889 1063 req->type = type_path;
890 ++maxreqs; 1064 req_set_path1 (req, fh_or_path);
1065 break;
891 } 1066 }
892
893 unblock_sig ();
894 return count;
895} 1067}
896 1068
897/*****************************************************************************/ 1069/*****************************************************************************/
898/* work around various missing functions */
899 1070
900#if !HAVE_PREADWRITE 1071static void
901# define pread aio_pread 1072ts_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{ 1073{
913 ssize_t res; 1074 ts->tv_sec = value;
914 off_t ooffset; 1075 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} 1076}
925 1077
926static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1078static NV
1079ts_get (const struct timespec *ts)
927{ 1080{
928 ssize_t res; 1081 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} 1082}
940#endif
941 1083
942#ifndef HAVE_FUTIMES 1084/*****************************************************************************/
943 1085
944# define utimes(path,times) aio_utimes (path, times) 1086XS(boot_IO__AIO) ecb_cold;
945# define futimes(fd,times) aio_futimes (fd, times)
946 1087
947int aio_utimes (const char *filename, const struct timeval times[2]) 1088MODULE = IO::AIO PACKAGE = IO::AIO
948{
949 if (times)
950 {
951 struct utimbuf buf;
952 1089
953 buf.actime = times[0].tv_sec; 1090PROTOTYPES: ENABLE
954 buf.modtime = times[1].tv_sec;
955 1091
956 return utime (filename, &buf); 1092BOOT:
957 }
958 else
959 return utime (filename, 0);
960}
961
962int aio_futimes (int fd, const struct timeval tv[2])
963{ 1093{
964 errno = ENOSYS; 1094 static const struct {
965 return -1; 1095 const char *name;
966} 1096 IV iv;
1097 } *civ, const_iv[] = {
1098# define const_niv(name, value) { # name, (IV) value },
1099# define const_iv(name) { # name, (IV) name },
1100# define const_eio(name) { # name, (IV) EIO_ ## name },
967 1101
968#endif 1102 /* you have to re-run ./gendef0 after adding/removing any constants here */
1103 /* the first block can be undef if missing */
1104 const_iv (ENOSYS)
1105 const_iv (EXDEV)
1106 const_iv (EBADR)
969 1107
970#if !HAVE_FDATASYNC 1108 /* for lseek */
971# define fdatasync fsync 1109 const_iv (SEEK_DATA)
972#endif 1110 const_iv (SEEK_HOLE)
973 1111
974#if !HAVE_READAHEAD 1112 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
975# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1113 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1114 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1115 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1116 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1117 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
976 1118
977static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1119 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
978{ 1120 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
979 size_t todo = count; 1121 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
980 dBUF; 1122 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1123 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
981 1124
982 while (todo > 0) 1125 /* the second block will be 0 when missing */
983 { 1126 const_iv (O_ACCMODE)
984 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
985 1127
986 pread (fd, aio_buf, len, offset); 1128 const_iv (O_RDONLY)
987 offset += len; 1129 const_iv (O_WRONLY)
988 todo -= len; 1130 const_iv (O_RDWR)
989 } 1131 const_iv (O_CREAT)
1132 const_iv (O_TRUNC)
1133 const_iv (O_EXCL)
1134 const_iv (O_APPEND)
990 1135
991 errno = 0; 1136 const_iv (O_ASYNC)
992 return count; 1137 const_iv (O_DIRECT)
993} 1138 const_iv (O_NOATIME)
994 1139
995#endif 1140 const_iv (O_CLOEXEC)
1141 const_iv (O_NOCTTY)
1142 const_iv (O_NOFOLLOW)
1143 const_iv (O_NONBLOCK)
1144 const_iv (O_EXEC)
1145 const_iv (O_SEARCH)
1146 const_iv (O_DIRECTORY)
1147 const_iv (O_DSYNC)
1148 const_iv (O_RSYNC)
1149 const_iv (O_SYNC)
1150 const_iv (O_PATH)
1151 const_iv (O_TMPFILE)
1152 const_iv (O_TTY_INIT)
996 1153
997#if !HAVE_READDIR_R 1154 const_iv (S_IFIFO)
998# define readdir_r aio_readdir_r 1155 const_iv (S_IFCHR)
1156 const_iv (S_IFBLK)
1157 const_iv (S_IFLNK)
1158 const_iv (S_IFREG)
1159 const_iv (S_IFDIR)
1160 const_iv (S_IFWHT)
1161 const_iv (S_IFSOCK)
1162 const_iv (S_IFMT)
999 1163
1000static mutex_t readdirlock = X_MUTEX_INIT; 1164 const_iv (ST_RDONLY)
1001 1165 const_iv (ST_NOSUID)
1002static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 1166 const_iv (ST_NODEV)
1003{ 1167 const_iv (ST_NOEXEC)
1004 X_DIRENT *e; 1168 const_iv (ST_SYNCHRONOUS)
1005 int errorno; 1169 const_iv (ST_MANDLOCK)
1170 const_iv (ST_WRITE)
1171 const_iv (ST_APPEND)
1172 const_iv (ST_IMMUTABLE)
1173 const_iv (ST_NOATIME)
1174 const_iv (ST_NODIRATIME)
1175 const_iv (ST_RELATIME)
1006 1176
1007 X_LOCK (readdirlock); 1177 const_iv (PROT_NONE)
1178 const_iv (PROT_EXEC)
1179 const_iv (PROT_READ)
1180 const_iv (PROT_WRITE)
1008 1181
1009 e = readdir (dirp); 1182 const_iv (MAP_PRIVATE)
1010 errorno = errno; 1183 const_iv (MAP_SHARED)
1184 const_iv (MAP_FIXED)
1185 const_iv (MAP_ANONYMOUS)
1011 1186
1012 if (e) 1187 /* linuxish */
1013 { 1188 const_iv (MAP_LOCKED)
1014 *res = ent; 1189 const_iv (MAP_NORESERVE)
1015 strcpy (ent->d_name, e->d_name); 1190 const_iv (MAP_POPULATE)
1016 } 1191 const_iv (MAP_NONBLOCK)
1017 else 1192 const_iv (MAP_GROWSDOWN)
1018 *res = 0; 1193 const_iv (MAP_32BIT)
1194 const_iv (MAP_HUGETLB)
1195 const_iv (MAP_STACK)
1019 1196
1020 X_UNLOCK (readdirlock); 1197 const_iv (MREMAP_MAYMOVE)
1198 const_iv (MREMAP_FIXED)
1021 1199
1022 errno = errorno; 1200 const_iv (F_DUPFD_CLOEXEC)
1023 return e ? 0 : -1;
1024}
1025#endif
1026 1201
1027/* sendfile always needs emulation */ 1202 const_iv (MSG_CMSG_CLOEXEC)
1028static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1203 const_iv (SOCK_CLOEXEC)
1029{
1030 ssize_t res;
1031 1204
1032 if (!count) 1205 const_iv (F_OFD_GETLK)
1033 return 0; 1206 const_iv (F_OFD_SETLK)
1207 const_iv (F_OFD_GETLKW)
1034 1208
1035#if HAVE_SENDFILE 1209 const_iv (FIFREEZE)
1036# if __linux 1210 const_iv (FITHAW)
1037 res = sendfile (ofd, ifd, &offset, count); 1211 const_iv (FITRIM)
1212 const_iv (FICLONE)
1213 const_iv (FICLONERANGE)
1214 const_iv (FIDEDUPERANGE)
1038 1215
1039# elif __freebsd 1216 const_iv (FS_IOC_GETFLAGS)
1040 /* 1217 const_iv (FS_IOC_SETFLAGS)
1041 * Of course, the freebsd sendfile is a dire hack with no thoughts 1218 const_iv (FS_IOC_GETVERSION)
1042 * wasted on making it similar to other I/O functions. 1219 const_iv (FS_IOC_SETVERSION)
1043 */ 1220 const_iv (FS_IOC_FIEMAP)
1221 const_iv (FS_IOC_FSGETXATTR)
1222 const_iv (FS_IOC_FSSETXATTR)
1223 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1224 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1225 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1226
1227 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1228
1229 const_iv (FS_SECRM_FL)
1230 const_iv (FS_UNRM_FL)
1231 const_iv (FS_COMPR_FL)
1232 const_iv (FS_SYNC_FL)
1233 const_iv (FS_IMMUTABLE_FL)
1234 const_iv (FS_APPEND_FL)
1235 const_iv (FS_NODUMP_FL)
1236 const_iv (FS_NOATIME_FL)
1237 const_iv (FS_DIRTY_FL)
1238 const_iv (FS_COMPRBLK_FL)
1239 const_iv (FS_NOCOMP_FL)
1240 const_iv (FS_ENCRYPT_FL)
1241 const_iv (FS_BTREE_FL)
1242 const_iv (FS_INDEX_FL)
1243 const_iv (FS_JOURNAL_DATA_FL)
1244 const_iv (FS_NOTAIL_FL)
1245 const_iv (FS_DIRSYNC_FL)
1246 const_iv (FS_TOPDIR_FL)
1247 const_iv (FS_FL_USER_MODIFIABLE)
1248
1249 const_iv (FS_XFLAG_REALTIME)
1250 const_iv (FS_XFLAG_PREALLOC)
1251 const_iv (FS_XFLAG_IMMUTABLE)
1252 const_iv (FS_XFLAG_APPEND)
1253 const_iv (FS_XFLAG_SYNC)
1254 const_iv (FS_XFLAG_NOATIME)
1255 const_iv (FS_XFLAG_NODUMP)
1256 const_iv (FS_XFLAG_RTINHERIT)
1257 const_iv (FS_XFLAG_PROJINHERIT)
1258 const_iv (FS_XFLAG_NOSYMLINKS)
1259 const_iv (FS_XFLAG_EXTSIZE)
1260 const_iv (FS_XFLAG_EXTSZINHERIT)
1261 const_iv (FS_XFLAG_NODEFRAG)
1262 const_iv (FS_XFLAG_FILESTREAM)
1263 const_iv (FS_XFLAG_DAX)
1264 const_iv (FS_XFLAG_HASATTR)
1265
1266 const_iv (FIEMAP_FLAG_SYNC)
1267 const_iv (FIEMAP_FLAG_XATTR)
1268 const_iv (FIEMAP_FLAGS_COMPAT)
1269 const_iv (FIEMAP_EXTENT_LAST)
1270 const_iv (FIEMAP_EXTENT_UNKNOWN)
1271 const_iv (FIEMAP_EXTENT_DELALLOC)
1272 const_iv (FIEMAP_EXTENT_ENCODED)
1273 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1274 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1275 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1276 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1277 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1278 const_iv (FIEMAP_EXTENT_MERGED)
1279 const_iv (FIEMAP_EXTENT_SHARED)
1280
1281 const_iv (SPLICE_F_MOVE)
1282 const_iv (SPLICE_F_NONBLOCK)
1283 const_iv (SPLICE_F_MORE)
1284 const_iv (SPLICE_F_GIFT)
1285
1286 const_iv (EFD_CLOEXEC)
1287 const_iv (EFD_NONBLOCK)
1288 const_iv (EFD_SEMAPHORE)
1289
1290 const_iv (CLOCK_REALTIME)
1291 const_iv (CLOCK_MONOTONIC)
1292 const_iv (CLOCK_BOOTTIME)
1293 const_iv (CLOCK_REALTIME_ALARM)
1294 const_iv (CLOCK_BOOTTIME_ALARM)
1295
1296 const_iv (TFD_NONBLOCK)
1297 const_iv (TFD_CLOEXEC)
1298
1299 const_iv (TFD_TIMER_ABSTIME)
1300 const_iv (TFD_TIMER_CANCEL_ON_SET)
1301
1302 const_iv (STATX_TYPE)
1303 const_iv (STATX_MODE)
1304 const_iv (STATX_NLINK)
1305 const_iv (STATX_UID)
1306 const_iv (STATX_GID)
1307 const_iv (STATX_ATIME)
1308 const_iv (STATX_MTIME)
1309 const_iv (STATX_CTIME)
1310 const_iv (STATX_INO)
1311 const_iv (STATX_SIZE)
1312 const_iv (STATX_BLOCKS)
1313 const_iv (STATX_BASIC_STATS)
1314 const_iv (STATX_ALL)
1315 const_iv (STATX_BTIME)
1316 const_iv (STATX_ATTR_COMPRESSED)
1317 const_iv (STATX_ATTR_IMMUTABLE)
1318 const_iv (STATX_ATTR_APPEND)
1319 const_iv (STATX_ATTR_NODUMP)
1320 const_iv (STATX_ATTR_ENCRYPTED)
1321 const_iv (STATX_ATTR_AUTOMOUNT)
1322
1323 /* these are libeio constants, and are independent of gendef0 */
1324 const_eio (SEEK_SET)
1325 const_eio (SEEK_CUR)
1326 const_eio (SEEK_END)
1327
1328 const_eio (MCL_FUTURE)
1329 const_eio (MCL_CURRENT)
1330 const_eio (MCL_ONFAULT)
1331
1332 const_eio (MS_ASYNC)
1333 const_eio (MS_INVALIDATE)
1334 const_eio (MS_SYNC)
1335
1336 const_eio (MT_MODIFY)
1337
1338 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1339 const_eio (SYNC_FILE_RANGE_WRITE)
1340 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1341
1342 const_eio (FALLOC_FL_KEEP_SIZE)
1343 const_eio (FALLOC_FL_PUNCH_HOLE)
1344 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1345 const_eio (FALLOC_FL_ZERO_RANGE)
1346 const_eio (FALLOC_FL_INSERT_RANGE)
1347 const_eio (FALLOC_FL_UNSHARE_RANGE)
1348
1349 const_eio (RENAME_NOREPLACE)
1350 const_eio (RENAME_EXCHANGE)
1351 const_eio (RENAME_WHITEOUT)
1352
1353 const_eio (READDIR_DENTS)
1354 const_eio (READDIR_DIRS_FIRST)
1355 const_eio (READDIR_STAT_ORDER)
1356 const_eio (READDIR_FOUND_UNKNOWN)
1357
1358 const_eio (DT_UNKNOWN)
1359 const_eio (DT_FIFO)
1360 const_eio (DT_CHR)
1361 const_eio (DT_DIR)
1362 const_eio (DT_BLK)
1363 const_eio (DT_REG)
1364 const_eio (DT_LNK)
1365 const_eio (DT_SOCK)
1366 const_eio (DT_WHT)
1367 };
1368
1369 aio_stash = gv_stashpv ("IO::AIO" , 1);
1370 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1371 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1372 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1373
1374 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1375 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1376
1377 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1378
1379 /* allocate dummy pipe fd for aio_close */
1044 { 1380 {
1045 off_t sbytes; 1381 int pipefd [2];
1046 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1047 1382
1048 if (res < 0 && sbytes) 1383 if (
1049 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1384#ifdef _WIN32
1050 res = sbytes; 1385 _pipe (pipefd, 1, _O_BINARY) < 0
1386#else
1387 pipe (pipefd) < 0
1388 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1389#endif
1390 || close (pipefd [1]) < 0
1391 )
1392 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1393
1394 close_fd = pipefd [0];
1051 } 1395 }
1052 1396
1053# elif __hpux 1397 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} 1398}
1119 1399
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 1400void
1401reinit ()
1402 PROTOTYPE:
1403
1404void
1470max_poll_reqs (int nreqs) 1405max_poll_reqs (unsigned int nreqs)
1471 PROTOTYPE: $ 1406 PROTOTYPE: $
1472 CODE: 1407 CODE:
1473 max_poll_reqs = nreqs; 1408 eio_set_max_poll_reqs (nreqs);
1474 1409
1475void 1410void
1476max_poll_time (double nseconds) 1411max_poll_time (double nseconds)
1477 PROTOTYPE: $ 1412 PROTOTYPE: $
1478 CODE: 1413 CODE:
1479 max_poll_time = nseconds * AIO_TICKS; 1414 eio_set_max_poll_time (nseconds);
1480 1415
1481void 1416void
1482min_parallel (int nthreads) 1417min_parallel (unsigned int nthreads)
1483 PROTOTYPE: $
1484
1485void
1486max_parallel (int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_idle (int nthreads)
1491 PROTOTYPE: $ 1418 PROTOTYPE: $
1492 CODE: 1419 CODE:
1493 set_max_idle (nthreads); 1420 eio_set_min_parallel (nthreads);
1494 1421
1495int 1422void
1496max_outstanding (int maxreqs) 1423max_parallel (unsigned int nthreads)
1497 PROTOTYPE: $ 1424 PROTOTYPE: $
1498 CODE: 1425 CODE:
1499 RETVAL = max_outstanding; 1426 eio_set_max_parallel (nthreads);
1427
1428void
1429max_idle (unsigned int nthreads)
1430 PROTOTYPE: $
1431 CODE:
1432 eio_set_max_idle (nthreads);
1433
1434void
1435idle_timeout (unsigned int seconds)
1436 PROTOTYPE: $
1437 CODE:
1438 eio_set_idle_timeout (seconds);
1439
1440void
1441max_outstanding (unsigned int maxreqs)
1442 PROTOTYPE: $
1443 CODE:
1500 max_outstanding = maxreqs; 1444 max_outstanding = maxreqs;
1501 OUTPUT:
1502 RETVAL
1503 1445
1504void 1446void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1447aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1506 PROTOTYPE: $$$;$
1507 PPCODE: 1448 PPCODE:
1508{ 1449{
1509 dREQ; 1450 dREQ;
1510 1451
1452 req->type = EIO_WD_OPEN;
1453 req_set_path1 (req, pathname);
1454
1455 REQ_SEND;
1456}
1457
1458void
1459aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1460 PPCODE:
1461{
1462 dREQ;
1463
1511 req->type = REQ_OPEN; 1464 req->type = EIO_OPEN;
1512 req->sv1 = newSVsv (pathname); 1465 req_set_path1 (req, pathname);
1513 req->ptr1 = SvPVbyte_nolen (req->sv1);
1514 req->int1 = flags; 1466 req->int1 = flags;
1515 req->mode = mode; 1467 req->int2 = mode;
1516 1468
1517 REQ_SEND; 1469 REQ_SEND;
1518} 1470}
1519 1471
1520void 1472void
1521aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1473aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1522 PROTOTYPE: $;$
1523 ALIAS: 1474 ALIAS:
1524 aio_fsync = REQ_FSYNC 1475 aio_fsync = EIO_FSYNC
1525 aio_fdatasync = REQ_FDATASYNC 1476 aio_fdatasync = EIO_FDATASYNC
1477 aio_syncfs = EIO_SYNCFS
1526 PPCODE: 1478 PPCODE:
1527{ 1479{
1480 int fd = s_fileno_croak (fh, 0);
1528 dREQ; 1481 dREQ;
1529 1482
1530 req->type = ix; 1483 req->type = ix;
1531 req->sv1 = newSVsv (fh); 1484 req->sv1 = newSVsv (fh);
1532 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1485 req->int1 = fd;
1533 1486
1534 REQ_SEND (req); 1487 REQ_SEND;
1535} 1488}
1536 1489
1537void 1490void
1538aio_close (SV *fh, SV *callback=&PL_sv_undef) 1491aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $;$
1540 PPCODE: 1492 PPCODE:
1541{ 1493{
1542 PerlIO *io = IoIFP (sv_2io (fh)); 1494 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; 1495 dREQ;
1552 1496
1553 req->type = REQ_CLOSE; 1497 req->type = EIO_SYNC_FILE_RANGE;
1554 req->sv1 = newSVsv (fh); 1498 req->sv1 = newSVsv (fh);
1555 req->ptr1 = (void *)io; 1499 req->int1 = fd;
1500 req->offs = offset;
1501 req->size = nbytes;
1502 req->int2 = flags;
1556 1503
1557 REQ_SEND (req); 1504 REQ_SEND;
1505}
1506
1507void
1508aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1509 PPCODE:
1510{
1511 int fd = s_fileno_croak (fh, 0);
1512 dREQ;
1513
1514 req->type = EIO_FALLOCATE;
1515 req->sv1 = newSVsv (fh);
1516 req->int1 = fd;
1517 req->int2 = mode;
1518 req->offs = offset;
1519 req->size = len;
1520
1521 REQ_SEND;
1522}
1523
1524void
1525aio_close (SV *fh, SV *callback = &PL_sv_undef)
1526 PPCODE:
1527{
1528 int fd = s_fileno_croak (fh, 0);
1529 dREQ;
1530#if 0
1531 /* partially duplicate logic in s_fileno */
1532 SvGETMAGIC (fh);
1533
1534 if (SvROK (fh))
1535 {
1536 fh = SvRV (fh);
1537 SvGETMAGIC (fh);
1538 }
1539
1540 if (SvTYPE (fh) == SVt_PVGV)
1541 {
1542 /* perl filehandle */
1543 PerlIOUnix_refcnt_inc (fd);
1544 do_close ((GV *)fh, 1);
1545
1546 req->type = EIO_CLOSE;
1547 req->int1 = fd;
1548 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1558 } 1549 }
1559} 1550 else
1551#endif
1552 {
1553 /* fd number */
1554 req->type = EIO_DUP2;
1555 req->int1 = close_fd;
1556 req->sv2 = newSVsv (fh);
1557 req->int2 = fd;
1558 }
1560 1559
1560 REQ_SEND;
1561}
1562
1561void 1563void
1564aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1565 PPCODE:
1566{
1567 int fd = s_fileno_croak (fh, 0);
1568 dREQ;
1569
1570 req->type = EIO_SEEK;
1571 req->sv1 = newSVsv (fh);
1572 req->int1 = fd;
1573 req->offs = SvVAL64 (offset);
1574 req->int2 = whence;
1575
1576 REQ_SEND;
1577}
1578
1579void
1562aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1580aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1563 ALIAS: 1581 ALIAS:
1564 aio_read = REQ_READ 1582 aio_read = EIO_READ
1565 aio_write = REQ_WRITE 1583 aio_write = EIO_WRITE
1566 PROTOTYPE: $$$$$;$
1567 PPCODE: 1584 PPCODE:
1568{ 1585{
1569 STRLEN svlen; 1586 STRLEN svlen;
1587 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1570 char *svptr = SvPVbyte (data, svlen); 1588 char *svptr = SvPVbyte (data, svlen);
1571 UV len = SvUV (length); 1589 UV len = SvUV (length);
1572 1590
1573 SvUPGRADE (data, SVt_PV);
1574 SvPOK_on (data);
1575
1576 if (dataoffset < 0) 1591 if (dataoffset < 0)
1577 dataoffset += svlen; 1592 dataoffset += svlen;
1578 1593
1579 if (dataoffset < 0 || dataoffset > svlen) 1594 if (dataoffset < 0 || dataoffset > svlen)
1580 croak ("dataoffset outside of data scalar"); 1595 croak ("dataoffset outside of data scalar");
1581 1596
1582 if (ix == REQ_WRITE) 1597 if (ix == EIO_WRITE)
1583 { 1598 {
1584 /* write: check length and adjust. */ 1599 /* write: check length and adjust. */
1585 if (!SvOK (length) || len + dataoffset > svlen) 1600 if (!SvOK (length) || len + dataoffset > svlen)
1586 len = svlen - dataoffset; 1601 len = svlen - dataoffset;
1587 } 1602 }
1588 else 1603 else
1589 { 1604 {
1590 /* read: grow scalar as necessary */ 1605 /* read: check type and grow scalar as necessary */
1606 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1591 svptr = SvGROW (data, len + dataoffset + 1); 1607 svptr = sv_grow (data, len + dataoffset + 1);
1608 else if (SvCUR (data) < len + dataoffset)
1609 croak ("length + dataoffset outside of scalar, and cannot grow");
1592 } 1610 }
1593
1594 if (len < 0)
1595 croak ("length must not be negative");
1596 1611
1597 { 1612 {
1598 dREQ; 1613 dREQ;
1599 1614
1600 req->type = ix; 1615 req->type = ix;
1601 req->sv1 = newSVsv (fh); 1616 req->sv1 = newSVsv (fh);
1602 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1617 req->int1 = fd;
1603 : IoOFP (sv_2io (fh)));
1604 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1618 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1605 req->size = len; 1619 req->size = len;
1606 req->sv2 = SvREFCNT_inc (data); 1620 req->sv2 = SvREFCNT_inc (data);
1607 req->ptr1 = (char *)svptr + dataoffset; 1621 req->ptr2 = (char *)svptr + dataoffset;
1608 req->stroffset = dataoffset; 1622 req->stroffset = dataoffset;
1609 1623
1610 if (!SvREADONLY (data)) 1624 if (!SvREADONLY (data))
1611 { 1625 {
1612 SvREADONLY_on (data); 1626 SvREADONLY_on (data);
… …
1616 REQ_SEND; 1630 REQ_SEND;
1617 } 1631 }
1618} 1632}
1619 1633
1620void 1634void
1621aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1635aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1622 PROTOTYPE: $$;$ 1636 ALIAS:
1637 aio_ioctl = EIO_IOCTL
1638 aio_fcntl = EIO_FCNTL
1623 PPCODE: 1639 PPCODE:
1624{ 1640{
1625 SV *data; 1641 int fd = s_fileno_croak (fh, 0);
1626 dREQ; 1642 char *svptr;
1627 1643
1628 data = newSV (NAME_MAX); 1644 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 { 1645 {
1686 req_destroy (req); 1646 STRLEN svlen;
1687 croak ("out of memory during aio_stat statdata allocation"); 1647 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1688 } 1648#ifdef IOCPARM_LEN
1649 STRLEN need = IOCPARM_LEN (request);
1650#else
1651 STRLEN need = 256;
1652#endif
1689 1653
1690 req->flags |= FLAG_PTR2_FREE; 1654 if (svlen < need)
1691 req->sv1 = newSVsv (fh_or_path); 1655 svptr = SvGROW (arg, need);
1692
1693 if (SvPOK (fh_or_path))
1694 {
1695 req->type = ix;
1696 req->ptr1 = SvPVbyte_nolen (req->sv1);
1697 } 1656 }
1698 else 1657 else
1658 svptr = (char *)SvIV (arg);
1659
1699 { 1660 {
1661 dREQ;
1662
1700 req->type = REQ_FSTAT; 1663 req->type = ix;
1701 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1664 req->sv1 = newSVsv (fh);
1665 req->int1 = fd;
1666 req->int2 = (long)request;
1667 req->sv2 = SvREFCNT_inc (arg);
1668 req->ptr2 = svptr;
1669
1670 REQ_SEND;
1702 } 1671 }
1672}
1673
1674void
1675aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1676 ALIAS:
1677 aio_readlink = EIO_READLINK
1678 aio_realpath = EIO_REALPATH
1679 PPCODE:
1680{
1681 dREQ;
1682
1683 req->type = ix;
1684 req_set_path1 (req, pathname);
1703 1685
1704 REQ_SEND; 1686 REQ_SEND;
1705} 1687}
1706 1688
1707void 1689void
1690aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1691 PPCODE:
1692{
1693 int ifd = s_fileno_croak (in_fh , 0);
1694 int ofd = s_fileno_croak (out_fh, 1);
1695 dREQ;
1696
1697 req->type = EIO_SENDFILE;
1698 req->sv1 = newSVsv (out_fh);
1699 req->int1 = ofd;
1700 req->sv2 = newSVsv (in_fh);
1701 req->int2 = ifd;
1702 req->offs = in_offset;
1703 req->size = length;
1704
1705 REQ_SEND;
1706}
1707
1708void
1709aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1710 PPCODE:
1711{
1712 int fd = s_fileno_croak (fh, 0);
1713 dREQ;
1714
1715 req->type = EIO_READAHEAD;
1716 req->sv1 = newSVsv (fh);
1717 req->int1 = fd;
1718 req->offs = offset;
1719 req->size = length;
1720
1721 REQ_SEND;
1722}
1723
1724void
1725aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1726 ALIAS:
1727 aio_stat = EIO_STAT
1728 aio_lstat = EIO_LSTAT
1729 aio_statvfs = EIO_STATVFS
1730 PPCODE:
1731{
1732 dREQ;
1733
1734 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1735
1736 REQ_SEND;
1737}
1738
1739void
1740st_xtime ()
1741 ALIAS:
1742 st_atime = 0x01
1743 st_mtime = 0x02
1744 st_ctime = 0x04
1745 st_btime = 0x08
1746 st_xtime = 0x0f
1747 PPCODE:
1748 EXTEND (SP, 4);
1749 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1750 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1751 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1752 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1753
1754void
1755st_xtimensec ()
1756 ALIAS:
1757 st_atimensec = 0x01
1758 st_mtimensec = 0x02
1759 st_ctimensec = 0x04
1760 st_btimensec = 0x08
1761 st_xtimensec = 0x0f
1762 st_btimesec = 0x10
1763 st_gen = 0x20
1764 PPCODE:
1765 EXTEND (SP, 4);
1766 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1767 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1768 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1769 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1770 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1771 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1772
1773UV
1774major (UV dev)
1775 ALIAS:
1776 minor = 1
1777 CODE:
1778 RETVAL = ix ? minor (dev) : major (dev);
1779 OUTPUT:
1780 RETVAL
1781
1782UV
1783makedev (UV maj, UV min)
1784 CODE:
1785 RETVAL = makedev (maj, min);
1786 OUTPUT:
1787 RETVAL
1788
1789void
1708aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1790aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1709 PPCODE: 1791 PPCODE:
1710{ 1792{
1711 dREQ; 1793 dREQ;
1712 1794
1713 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1795 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1714 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1796 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1715 req->sv1 = newSVsv (fh_or_path); 1797 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 1798
1728 REQ_SEND; 1799 REQ_SEND;
1729} 1800}
1730 1801
1731void 1802void
1732aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1803aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1733 PPCODE: 1804 PPCODE:
1734{ 1805{
1735 dREQ; 1806 dREQ;
1736 1807
1737 req->sv1 = newSVsv (fh_or_path);
1738 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1808 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1739 1809 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 1810
1751 REQ_SEND; 1811 REQ_SEND;
1752} 1812}
1753 1813
1754void 1814void
1755aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1815aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1756 PPCODE: 1816 PPCODE:
1757{ 1817{
1758 dREQ; 1818 dREQ;
1759 1819
1760 req->mode = mode; 1820 req->int2 = mode;
1761 req->sv1 = newSVsv (fh_or_path); 1821 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 1822
1774 REQ_SEND; 1823 REQ_SEND;
1775} 1824}
1776 1825
1777void 1826void
1778aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1827aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1779 PPCODE: 1828 PPCODE:
1780{ 1829{
1781 dREQ; 1830 dREQ;
1782 1831
1783 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1832 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1784 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1833 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1785 req->sv1 = newSVsv (fh_or_path); 1834 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 1835
1798 REQ_SEND; 1836 REQ_SEND;
1799} 1837}
1800 1838
1801void 1839void
1840aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1841 PPCODE:
1842{
1843 dREQ;
1844
1845 req->type = EIO_READDIR;
1846 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1847
1848 if (flags & EIO_READDIR_DENTS)
1849 req->int1 |= EIO_READDIR_CUSTOM2;
1850
1851 req_set_path1 (req, pathname);
1852
1853 REQ_SEND;
1854}
1855
1856void
1857aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1858 PPCODE:
1859{
1860 dREQ;
1861
1862 req->type = EIO_MKDIR;
1863 req->int2 = mode;
1864 req_set_path1 (req, pathname);
1865
1866 REQ_SEND;
1867}
1868
1869void
1802aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1870aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1803 ALIAS: 1871 ALIAS:
1804 aio_unlink = REQ_UNLINK 1872 aio_unlink = EIO_UNLINK
1805 aio_rmdir = REQ_RMDIR 1873 aio_rmdir = EIO_RMDIR
1806 aio_readdir = REQ_READDIR 1874 aio_readdir = EIO_READDIR
1807 PPCODE: 1875 PPCODE:
1808{ 1876{
1809 dREQ; 1877 dREQ;
1810 1878
1811 req->type = ix; 1879 req->type = ix;
1812 req->sv1 = newSVsv (pathname); 1880 req_set_path1 (req, pathname);
1813 req->ptr1 = SvPVbyte_nolen (req->sv1);
1814 1881
1815 REQ_SEND; 1882 REQ_SEND;
1816} 1883}
1817 1884
1818void 1885void
1819aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1886aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1887 ALIAS:
1888 aio_link = EIO_LINK
1889 aio_symlink = EIO_SYMLINK
1890 aio_rename = EIO_RENAME
1820 PPCODE: 1891 PPCODE:
1821{ 1892{
1822 dREQ; 1893 eio_wd wd2 = 0;
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)
1834 ALIAS:
1835 aio_link = REQ_LINK
1836 aio_symlink = REQ_SYMLINK
1837 aio_rename = REQ_RENAME
1838 PPCODE:
1839{
1840 dREQ; 1894 dREQ;
1841 1895
1842 req->type = ix; 1896 req->type = ix;
1843 req->sv2 = newSVsv (oldpath); 1897 req_set_path1 (req, oldpath);
1844 req->ptr2 = SvPVbyte_nolen (req->sv2); 1898 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1845 req->sv1 = newSVsv (newpath); 1899 req->int3 = (long)wd2;
1846 req->ptr1 = SvPVbyte_nolen (req->sv1);
1847 1900
1848 REQ_SEND; 1901 REQ_SEND;
1849} 1902}
1850 1903
1851void 1904void
1852aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1905aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1853 PPCODE: 1906 PPCODE:
1854{ 1907{
1908 eio_wd wd2 = 0;
1855 dREQ; 1909 dREQ;
1856 1910
1857 req->type = REQ_MKNOD; 1911 req->type = EIO_RENAME;
1858 req->sv1 = newSVsv (pathname); 1912 req_set_path1 (req, oldpath);
1859 req->ptr1 = SvPVbyte_nolen (req->sv1); 1913 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1860 req->mode = (mode_t)mode; 1914 req->int2 = flags;
1861 req->offs = dev; 1915 req->int3 = (long)wd2;
1862 1916
1863 REQ_SEND; 1917 REQ_SEND;
1864} 1918}
1865 1919
1866void 1920void
1867aio_busy (double delay, SV *callback=&PL_sv_undef) 1921aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1868 PPCODE: 1922 PPCODE:
1869{ 1923{
1870 dREQ; 1924 dREQ;
1925
1926 req->type = EIO_MKNOD;
1927 req->int2 = (mode_t)mode;
1928 req->offs = dev;
1929 req_set_path1 (req, pathname);
1930
1931 REQ_SEND;
1932}
1871 1933
1934void
1935aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1936 ALIAS:
1937 aio_mtouch = EIO_MTOUCH
1938 aio_msync = EIO_MSYNC
1939 PPCODE:
1940{
1941 STRLEN svlen;
1942 char *svptr = SvPVbyte (data, svlen);
1943 UV len = SvUV (length);
1944
1945 if (flags < 0)
1946 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1947
1948 if (offset < 0)
1949 offset += svlen;
1950
1951 if (offset < 0 || offset > svlen)
1952 croak ("offset outside of scalar");
1953
1954 if (!SvOK (length) || len + offset > svlen)
1955 len = svlen - offset;
1956
1957 {
1958 dREQ;
1959
1960 req->type = ix;
1961 req->sv2 = SvREFCNT_inc (data);
1962 req->ptr2 = (char *)svptr + offset;
1963 req->size = len;
1964 req->int1 = flags;
1965
1966 REQ_SEND;
1967 }
1968}
1969
1970void
1971aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1972 PPCODE:
1973{
1974 STRLEN svlen;
1975 char *svptr = SvPVbyte (data, svlen);
1976 UV len = SvUV (length);
1977
1978 if (offset < 0)
1979 offset += svlen;
1980
1981 if (offset < 0 || offset > svlen)
1982 croak ("offset outside of scalar");
1983
1984 if (!SvOK (length) || len + offset > svlen)
1985 len = svlen - offset;
1986
1987 {
1988 dREQ;
1989
1990 req->type = EIO_MLOCK;
1991 req->sv2 = SvREFCNT_inc (data);
1992 req->ptr2 = (char *)svptr + offset;
1993 req->size = len;
1994
1995 REQ_SEND;
1996 }
1997}
1998
1999void
2000aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2001 PPCODE:
2002{
2003 dREQ;
2004
2005 req->type = EIO_MLOCKALL;
2006 req->int1 = flags;
2007
2008 REQ_SEND;
2009}
2010
2011void
2012aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2013 PPCODE:
2014{
2015 int fd = s_fileno_croak (fh, 0);
2016 dREQ;
2017
2018 req->type = EIO_CUSTOM;
2019 req->sv1 = newSVsv (fh);
2020 req->int1 = fd;
2021
2022 req->feed = fiemap;
2023#if HAVE_FIEMAP
2024 /* keep our fingers crossed that the next two types are 64 bit */
2025 req->offs = start;
2026 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2027 req->int2 = flags;
2028 req->int3 = SvOK (count) ? SvIV (count) : -1;
2029#endif
2030
2031 REQ_SEND;
2032}
2033
2034void
2035aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2036 PPCODE:
2037{
2038 char *svptr = 0;
2039
2040 sv_clear_foreign (data);
2041
2042 if (length) /* known length, directly read into scalar */
2043 {
2044 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2045 svptr = sv_grow (data, length + 1);
2046 else if (SvCUR (data) < length)
2047 croak ("length outside of scalar, and cannot grow");
2048 else
2049 svptr = SvPVbyte_nolen (data);
2050 }
2051
2052 {
2053 dREQ;
2054
2055 req->type = EIO_SLURP;
2056 req_set_path1 (req, pathname);
2057 req->offs = offset;
2058 req->size = length;
2059 req->sv2 = SvREFCNT_inc (data);
2060 req->ptr2 = svptr;
2061
2062 if (!SvREADONLY (data))
2063 {
2064 SvREADONLY_on (data);
2065 req->flags |= FLAG_SV2_RO_OFF;
2066 }
2067
2068 REQ_SEND;
2069 }
2070}
2071
2072void
2073aio_busy (double delay, SV *callback = &PL_sv_undef)
2074 PPCODE:
2075{
2076 dREQ;
2077
1872 req->type = REQ_BUSY; 2078 req->type = EIO_BUSY;
1873 req->nv1 = delay < 0. ? 0. : delay; 2079 req->nv1 = delay < 0. ? 0. : delay;
1874 2080
1875 REQ_SEND; 2081 REQ_SEND;
1876} 2082}
1877 2083
1878void 2084void
1879aio_group (SV *callback=&PL_sv_undef) 2085aio_group (SV *callback = &PL_sv_undef)
1880 PROTOTYPE: ;$
1881 PPCODE: 2086 PPCODE:
1882{ 2087{
1883 dREQ; 2088 dREQ;
1884 2089
1885 req->type = REQ_GROUP; 2090 req->type = EIO_GROUP;
1886 2091
2092 PUTBACK;
1887 req_send (req); 2093 req_submit (req);
2094 SPAGAIN;
2095
1888 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2096 XPUSHs (req_sv (req, aio_grp_stash));
1889} 2097}
1890 2098
1891void 2099void
1892aio_nop (SV *callback=&PL_sv_undef) 2100aio_nop (SV *callback = &PL_sv_undef)
2101 ALIAS:
2102 aio_nop = EIO_NOP
2103 aio_sync = EIO_SYNC
1893 PPCODE: 2104 PPCODE:
1894{ 2105{
1895 dREQ; 2106 dREQ;
1896 2107
1897 req->type = REQ_NOP; 2108 req->type = ix;
1898 2109
1899 REQ_SEND; 2110 REQ_SEND;
1900} 2111}
1901 2112
1902int 2113int
1903aioreq_pri (int pri = 0) 2114aioreq_pri (int pri = NO_INIT)
1904 PROTOTYPE: ;$
1905 CODE: 2115 CODE:
1906 RETVAL = next_pri - PRI_BIAS; 2116 RETVAL = next_pri;
1907 if (items > 0) 2117 if (items > 0)
1908 { 2118 {
1909 if (pri < PRI_MIN) pri = PRI_MIN; 2119 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1910 if (pri > PRI_MAX) pri = PRI_MAX; 2120 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1911 next_pri = pri + PRI_BIAS; 2121 next_pri = pri;
1912 } 2122 }
1913 OUTPUT: 2123 OUTPUT:
1914 RETVAL 2124 RETVAL
1915 2125
1916void 2126void
1917aioreq_nice (int nice = 0) 2127aioreq_nice (int nice = 0)
1918 CODE: 2128 CODE:
1919 nice = next_pri - nice; 2129 nice = next_pri - nice;
1920 if (nice < PRI_MIN) nice = PRI_MIN; 2130 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1921 if (nice > PRI_MAX) nice = PRI_MAX; 2131 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1922 next_pri = nice + PRI_BIAS; 2132 next_pri = nice;
1923 2133
1924void 2134void
1925flush () 2135flush ()
1926 PROTOTYPE:
1927 CODE: 2136 CODE:
1928 while (nreqs) 2137 while (eio_nreqs ())
1929 { 2138 {
1930 poll_wait (); 2139 poll_wait ();
1931 poll_cb (); 2140 poll_cb ();
1932 } 2141 }
1933 2142
1934int 2143int
1935poll() 2144poll ()
1936 PROTOTYPE:
1937 CODE: 2145 CODE:
1938 poll_wait (); 2146 poll_wait ();
1939 RETVAL = poll_cb (); 2147 RETVAL = poll_cb ();
1940 OUTPUT: 2148 OUTPUT:
1941 RETVAL 2149 RETVAL
1942 2150
1943int 2151int
1944poll_fileno() 2152poll_fileno ()
1945 PROTOTYPE:
1946 CODE: 2153 CODE:
1947 RETVAL = respipe [0]; 2154 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT: 2155 OUTPUT:
1949 RETVAL 2156 RETVAL
1950 2157
1951int 2158int
1952poll_cb(...) 2159poll_cb (...)
1953 PROTOTYPE: 2160 PROTOTYPE:
1954 CODE: 2161 CODE:
1955 RETVAL = poll_cb (); 2162 RETVAL = poll_cb ();
1956 OUTPUT: 2163 OUTPUT:
1957 RETVAL 2164 RETVAL
1958 2165
1959void 2166void
1960poll_wait() 2167poll_wait ()
2168 CODE:
2169 poll_wait ();
2170
2171int
2172nreqs ()
2173 CODE:
2174 RETVAL = eio_nreqs ();
2175 OUTPUT:
2176 RETVAL
2177
2178int
2179nready ()
2180 CODE:
2181 RETVAL = eio_nready ();
2182 OUTPUT:
2183 RETVAL
2184
2185int
2186npending ()
2187 CODE:
2188 RETVAL = eio_npending ();
2189 OUTPUT:
2190 RETVAL
2191
2192int
2193nthreads ()
2194 CODE:
2195 RETVAL = eio_nthreads ();
2196 OUTPUT:
2197 RETVAL
2198
2199int
2200fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2201 CODE:
2202 RETVAL = posix_fadvise (fh, offset, length, advice);
2203 OUTPUT:
2204 RETVAL
2205
2206IV
2207sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2208 CODE:
2209 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2210 OUTPUT:
2211 RETVAL
2212
2213void
2214mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2215 PPCODE:
2216 sv_clear_foreign (scalar);
2217{
2218 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2219 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2220 if (addr == (void *)-1)
2221 XSRETURN_NO;
2222
2223 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2224
2225 if (!(prot & PROT_WRITE))
2226 SvREADONLY_on (scalar);
2227
2228 XSRETURN_YES;
2229}
2230
2231void
2232munmap (SV *scalar)
2233 CODE:
2234 sv_clear_foreign (scalar);
2235
2236SV *
2237mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2238 CODE:
2239{
2240 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2241 void *new;
2242
2243 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2244 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2245
2246 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2247
2248 RETVAL = &PL_sv_no;
2249
2250 if (new != (void *)-1)
2251 {
2252 RETVAL = new == (void *)mg->mg_ptr
2253 ? newSVpvn ("0 but true", 10)
2254 : &PL_sv_yes;
2255
2256 mg->mg_ptr = (char *)new;
2257 mg->mg_obj = (SV *)new_length;
2258
2259 SvPVX (scalar) = mg->mg_ptr;
2260 SvCUR_set (scalar, new_length);
2261 }
2262}
2263 OUTPUT:
2264 RETVAL
2265
2266int
2267madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2268 ALIAS:
2269 mprotect = 1
2270 CODE:
2271{
2272 STRLEN svlen;
2273 void *addr = SvPVbyte (scalar, svlen);
2274 STRLEN len = SvUV (length);
2275
2276 if (offset < 0)
2277 offset += svlen;
2278
2279 if (offset < 0 || offset > svlen)
2280 croak ("offset outside of scalar");
2281
2282 if (!SvOK (length) || len + offset > svlen)
2283 len = svlen - offset;
2284
2285 addr = (void *)(((intptr_t)addr) + offset);
2286 eio_page_align (&addr, &len);
2287
2288 switch (ix)
2289 {
2290 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2291 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2292 }
2293}
2294 OUTPUT:
2295 RETVAL
2296
2297int
2298munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2299 CODE:
2300{
2301 STRLEN svlen;
2302 void *addr = SvPVbyte (scalar, svlen);
2303 size_t len = SvUV (length);
2304
2305 if (offset < 0)
2306 offset += svlen;
2307
2308 if (offset < 0 || offset > svlen)
2309 croak ("offset outside of scalar");
2310
2311 if (!SvOK (length) || len + offset > svlen)
2312 len = svlen - offset;
2313
2314 addr = (void *)(((intptr_t)addr) + offset);
2315 eio_page_align (&addr, &len);
2316#if _POSIX_MEMLOCK_RANGE
2317 RETVAL = munlock (addr, len);
2318#else
2319 RETVAL = EIO_ENOSYS ();
2320#endif
2321}
2322 OUTPUT:
2323 RETVAL
2324
2325int
2326mlockall (int flags)
2327 PROTOTYPE: $;
2328 CODE:
2329 RETVAL = eio_mlockall_sync (flags);
2330 OUTPUT:
2331 RETVAL
2332
2333int
2334munlockall ()
2335 CODE:
2336#if _POSIX_MEMLOCK
2337 munlockall ();
2338#else
2339 RETVAL = EIO_ENOSYS ();
2340#endif
2341 OUTPUT:
2342 RETVAL
2343
2344int
2345statx (SV8 *pathname, int flags, UV mask)
2346 CODE:
2347{
2348 /* undocumented, and might go away, and anyway, should use eio_statx */
2349 SV *wdsv = 0;
2350 SV *pathsv = 0;
2351 eio_wd wd = EIO_CWD;
2352 void *ptr;
2353 int res;
2354
2355 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2356 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2357
2358 SvREFCNT_dec (pathsv);
2359 SvREFCNT_dec (wdsv);
2360}
2361 OUTPUT:
2362 RETVAL
2363
2364U32
2365stx_mode ()
1961 PROTOTYPE: 2366 PROTOTYPE:
1962 CODE: 2367 CODE:
1963 poll_wait (); 2368#if HAVE_STATX
2369 RETVAL = stx.stx_mode;
2370#else
2371 XSRETURN_UNDEF;
2372#endif
2373 OUTPUT:
2374 RETVAL
1964 2375
2376#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2377#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2378#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2379#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2380#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2381#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2382#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2383#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2384#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2385#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2386#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2387#define STATX_OFFSET_size statx_offsetof (stx_size)
2388#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2389#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2390#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2391#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2392#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2393#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2394
2395U32
2396stx_mask ()
2397 PROTOTYPE:
2398 ALIAS:
2399 stx_mask = STATX_OFFSET_mask
2400 stx_blksize = STATX_OFFSET_blksize
2401 stx_nlink = STATX_OFFSET_nlink
2402 stx_uid = STATX_OFFSET_uid
2403 stx_gid = STATX_OFFSET_gid
2404 stx_rdev_major = STATX_OFFSET_rdev_major
2405 stx_rdev_minor = STATX_OFFSET_rdev_minor
2406 stx_dev_major = STATX_OFFSET_dev_major
2407 stx_dev_minor = STATX_OFFSET_dev_minor
2408 CODE:
2409#if HAVE_STATX
2410 RETVAL = *(__u32 *)((char *)&stx + ix);
2411#else
2412 XSRETURN_UNDEF;
2413#endif
2414 OUTPUT:
2415 RETVAL
2416
2417VAL64
2418stx_attributes ()
2419 PROTOTYPE:
2420 ALIAS:
2421 stx_attributes = STATX_OFFSET_attributes
2422 stx_ino = STATX_OFFSET_ino
2423 stx_size = STATX_OFFSET_size
2424 stx_blocks = STATX_OFFSET_blocks
2425 stx_attributes_mask = STATX_OFFSET_attributes_mask
2426 CODE:
2427#if HAVE_STATX
2428 RETVAL = *(__u64 *)((char *)&stx + ix);
2429#else
2430 XSRETURN_UNDEF;
2431#endif
2432 OUTPUT:
2433 RETVAL
2434
2435NV
2436stx_atime ()
2437 PROTOTYPE:
2438 ALIAS:
2439 stx_atime = STATX_OFFSET_atime
2440 stx_btime = STATX_OFFSET_btime
2441 stx_ctime = STATX_OFFSET_ctime
2442 stx_mtime = STATX_OFFSET_mtime
2443 CODE:
2444#if HAVE_STATX
2445 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2446 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2447#else
2448 XSRETURN_UNDEF;
2449#endif
2450 OUTPUT:
2451 RETVAL
2452
2453VAL64
2454stx_atimesec ()
2455 PROTOTYPE:
2456 ALIAS:
2457 stx_atimesec = STATX_OFFSET_atime
2458 stx_btimesec = STATX_OFFSET_btime
2459 stx_ctimesec = STATX_OFFSET_ctime
2460 stx_mtimesec = STATX_OFFSET_mtime
2461 CODE:
2462#if HAVE_STATX
2463 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2464 RETVAL = ts->tv_sec;
2465#else
2466 XSRETURN_UNDEF;
2467#endif
2468 OUTPUT:
2469 RETVAL
2470
2471U32
2472stx_atimensec ()
2473 PROTOTYPE:
2474 ALIAS:
2475 stx_atimensec = STATX_OFFSET_atime
2476 stx_btimensec = STATX_OFFSET_btime
2477 stx_ctimensec = STATX_OFFSET_ctime
2478 stx_mtimensec = STATX_OFFSET_mtime
2479 CODE:
2480#if HAVE_STATX
2481 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2482 RETVAL = ts->tv_nsec;
2483#else
2484 RETVAL = 0;
2485#endif
2486 OUTPUT:
2487 RETVAL
2488
2489int
2490splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2491 CODE:
2492{
2493#if HAVE_LINUX_SPLICE
2494 loff_t off_in_, off_out_;
2495 RETVAL = splice (
2496 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2497 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2498 length, flags
2499 );
2500#else
2501 RETVAL = EIO_ENOSYS ();
2502#endif
2503}
2504 OUTPUT:
2505 RETVAL
2506
2507int
2508tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2509 CODE:
2510#if HAVE_LINUX_SPLICE
2511 RETVAL = tee (rfh, wfh, length, flags);
2512#else
2513 RETVAL = EIO_ENOSYS ();
2514#endif
2515 OUTPUT:
2516 RETVAL
2517
2518int
2519pipesize (aio_rfd rfh, int new_size = -1)
2520 PROTOTYPE: $;$
2521 CODE:
2522#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2523 if (new_size >= 0)
2524 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2525 else
2526 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2527#else
2528 errno = ENOSYS;
2529 RETVAL = -1;
2530#endif
2531 OUTPUT:
2532 RETVAL
2533
1965void 2534void
1966setsig (int signum = SIGIO) 2535pipe2 (int flags = 0)
1967 PROTOTYPE: ;$ 2536 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: 2537 PPCODE:
1986{ 2538{
1987 int count; 2539 int fd[2];
2540 int res;
1988 2541
1989 block_sig (); 2542 if (flags)
1990 PUSHMARK (SP); 2543#if HAVE_PIPE2
1991 PUTBACK; 2544 res = pipe2 (fd, flags);
1992 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2545#else
1993 SPAGAIN; 2546 res = (errno = ENOSYS, -1);
1994 unblock_sig (); 2547#endif
2548 else
2549 res = pipe (fd);
1995 2550
1996 if (SvTRUE (ERRSV)) 2551 if (!res)
1997 croak (0); 2552 {
1998 2553 EXTEND (SP, 2);
1999 XSRETURN (count); 2554 PUSHs (newmortalFH (fd[0], O_RDONLY));
2555 PUSHs (newmortalFH (fd[1], O_WRONLY));
2556 }
2000} 2557}
2001 2558
2002int 2559void
2003nreqs() 2560eventfd (unsigned int initval = 0, int flags = 0)
2004 PROTOTYPE: 2561 PPCODE:
2562{
2563 int fd;
2564#if HAVE_EVENTFD
2565 fd = eventfd (initval, flags);
2566#else
2567 fd = (errno = ENOSYS, -1);
2568#endif
2569
2570 XPUSHs (newmortalFH (fd, O_RDWR));
2571}
2572
2573void
2574timerfd_create (int clockid, int flags = 0)
2575 PPCODE:
2576{
2577 int fd;
2578#if HAVE_TIMERFD
2579 fd = timerfd_create (clockid, flags);
2580#else
2581 fd = (errno = ENOSYS, -1);
2582#endif
2583
2584 XPUSHs (newmortalFH (fd, O_RDWR));
2585}
2586
2587void
2588timerfd_settime (SV *fh, int flags, NV interval, NV value)
2589 PPCODE:
2590{
2591 int fd = s_fileno_croak (fh, 0);
2592#if HAVE_TIMERFD
2593 int res;
2594 struct itimerspec its, ots;
2595
2596 ts_set (&its.it_interval, interval);
2597 ts_set (&its.it_value , value);
2598 res = timerfd_settime (fd, flags, &its, &ots);
2599
2600 if (!res)
2601 {
2602 EXTEND (SP, 2);
2603 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2604 PUSHs (newSVnv (ts_get (&ots.it_value)));
2605 }
2606#else
2607 errno = ENOSYS;
2608#endif
2609}
2610
2611void
2612timerfd_gettime (SV *fh)
2613 PPCODE:
2614{
2615 int fd = s_fileno_croak (fh, 0);
2616#if HAVE_TIMERFD
2617 int res;
2618 struct itimerspec ots;
2619 res = timerfd_gettime (fd, &ots);
2620
2621 if (!res)
2622 {
2623 EXTEND (SP, 2);
2624 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2625 PUSHs (newSVnv (ts_get (&ots.it_value)));
2626 }
2627#else
2628 errno = ENOSYS;
2629#endif
2630}
2631
2632UV
2633get_fdlimit ()
2005 CODE: 2634 CODE:
2006 RETVAL = nreqs; 2635#if HAVE_RLIMITS
2636 struct rlimit rl;
2637 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2638 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2639#endif
2640 XSRETURN_UNDEF;
2007 OUTPUT: 2641 OUTPUT:
2008 RETVAL 2642 RETVAL
2009 2643
2010int 2644void
2011nready() 2645min_fdlimit (UV limit = 0x7fffffffU)
2012 PROTOTYPE:
2013 CODE: 2646 CODE:
2014 RETVAL = get_nready (); 2647{
2015 OUTPUT: 2648#if HAVE_RLIMITS
2016 RETVAL 2649 struct rlimit rl;
2650 rlim_t orig_rlim_max;
2651 UV bit;
2017 2652
2018int 2653 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2019npending() 2654 goto fail;
2020 PROTOTYPE: 2655
2656 if (rl.rlim_cur == RLIM_INFINITY)
2657 XSRETURN_YES;
2658
2659 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2660
2661 if (rl.rlim_cur < limit)
2662 {
2663 rl.rlim_cur = limit;
2664
2665 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2666 rl.rlim_max = rl.rlim_cur;
2667 }
2668
2669 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2670 XSRETURN_YES;
2671
2672 if (errno == EPERM)
2673 {
2674 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2675 /* our limit overflows a system-wide limit */
2676 /* try an adaptive algorithm, but do not lower the hardlimit */
2677 rl.rlim_max = 0;
2678 for (bit = 0x40000000U; bit; bit >>= 1)
2679 {
2680 rl.rlim_max |= bit;
2681 rl.rlim_cur = rl.rlim_max;
2682
2683 /* nevr decrease the hard limit */
2684 if (rl.rlim_max < orig_rlim_max)
2685 break;
2686
2687 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2688 rl.rlim_max &= ~bit; /* too high, remove bit again */
2689 }
2690
2691 /* now, raise the soft limit to the max permitted */
2692 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2693 {
2694 rl.rlim_cur = rl.rlim_max;
2695 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2696 errno = EPERM;
2697 }
2698 }
2699#endif
2700 fail:
2701 XSRETURN_UNDEF;
2702}
2703
2704void _on_next_submit (SV *cb)
2021 CODE: 2705 CODE:
2022 RETVAL = get_npending (); 2706 SvREFCNT_dec (on_next_submit);
2023 OUTPUT: 2707 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2024 RETVAL
2025 2708
2026int 2709PROTOTYPES: DISABLE
2027nthreads() 2710
2028 PROTOTYPE: 2711MODULE = IO::AIO PACKAGE = IO::AIO::WD
2712
2713BOOT:
2714{
2715 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2716 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2717}
2718
2719void
2720DESTROY (SV *self)
2029 CODE: 2721 CODE:
2030 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2722{
2031 RETVAL = started; 2723 aio_wd wd = SvAIO_WD (self);
2032 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 2724#if HAVE_AT
2033 OUTPUT: 2725 {
2034 RETVAL 2726 SV *callback = &PL_sv_undef;
2035 2727 dREQ; /* clobbers next_pri :/ */
2036PROTOTYPES: DISABLE 2728 next_pri = req->pri; /* restore next_pri */
2729 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2730 req->type = EIO_WD_CLOSE;
2731 req->wd = wd;
2732 REQ_SEND;
2733 }
2734#else
2735 eio_wd_close_sync (wd);
2736#endif
2737}
2037 2738
2038MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2739MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2039 2740
2040void 2741void
2041cancel (aio_req_ornot req) 2742cancel (aio_req_ornot req)
2042 CODE: 2743 CODE:
2043 req_cancel (req); 2744 eio_cancel (req);
2044 2745
2045void 2746void
2046cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2747cb (aio_req_ornot req, SV *callback = NO_INIT)
2047 CODE: 2748 PPCODE:
2749{
2750 if (GIMME_V != G_VOID)
2751 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2752
2753 if (items > 1)
2754 {
2755 SV *cb_cv = get_cb (callback);
2756
2048 SvREFCNT_dec (req->callback); 2757 SvREFCNT_dec (req->callback);
2049 req->callback = newSVsv (callback); 2758 req->callback = SvREFCNT_inc (cb_cv);
2759 }
2760}
2050 2761
2051MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2762MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2052 2763
2053void 2764void
2054add (aio_req grp, ...) 2765add (aio_req grp, ...)
2055 PPCODE: 2766 PPCODE:
2056{ 2767{
2057 int i; 2768 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 2769
2063 if (grp->int1 == 2) 2770 if (grp->int1 == 2)
2064 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2771 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2065 2772
2066 for (i = 1; i < items; ++i ) 2773 for (i = 1; i < items; ++i )
2067 { 2774 {
2775 aio_req req;
2776
2068 if (GIMME_V != G_VOID) 2777 if (GIMME_V != G_VOID)
2069 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2778 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2070 2779
2071 req = SvAIO_REQ (ST (i)); 2780 req = SvAIO_REQ (ST (i));
2072 2781
2073 if (req) 2782 if (req)
2074 { 2783 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 } 2784 }
2087} 2785}
2088 2786
2089void 2787void
2090cancel_subs (aio_req_ornot req) 2788cancel_subs (aio_req_ornot req)
… …
2099 AV *av; 2797 AV *av;
2100 2798
2101 grp->errorno = errno; 2799 grp->errorno = errno;
2102 2800
2103 av = newAV (); 2801 av = newAV ();
2802 av_extend (av, items - 1);
2104 2803
2105 for (i = 1; i < items; ++i ) 2804 for (i = 1; i < items; ++i )
2106 av_push (av, newSVsv (ST (i))); 2805 av_push (av, newSVsv (ST (i)));
2107 2806
2108 SvREFCNT_dec (grp->sv1); 2807 SvREFCNT_dec (grp->sv1);
… …
2115 grp->errorno = errorno; 2814 grp->errorno = errorno;
2116 2815
2117void 2816void
2118limit (aio_req grp, int limit) 2817limit (aio_req grp, int limit)
2119 CODE: 2818 CODE:
2120 grp->int2 = limit; 2819 eio_grp_limit (grp, limit);
2121 aio_grp_feed (grp);
2122 2820
2123void 2821void
2124feed (aio_req grp, SV *callback=&PL_sv_undef) 2822feed (aio_req grp, SV *callback = &PL_sv_undef)
2125 CODE: 2823 CODE:
2126{ 2824{
2127 SvREFCNT_dec (grp->sv2); 2825 SvREFCNT_dec (grp->sv2);
2128 grp->sv2 = newSVsv (callback); 2826 grp->sv2 = newSVsv (callback);
2827 grp->feed = aio_grp_feed;
2129 2828
2130 if (grp->int2 <= 0) 2829 if (grp->int2 <= 0)
2131 grp->int2 = 2; 2830 grp->int2 = 2;
2132 2831
2133 aio_grp_feed (grp); 2832 eio_grp_limit (grp, grp->int2);
2134} 2833}
2135 2834

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