ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.109 by root, Sat Oct 6 14:05:19 2007 UTC vs.
Revision 1.274 by root, Sun Mar 10 12:16:48 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, 298static void
171 PRI_MAX = 4, 299sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
172
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{ 300{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 301 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 302
190static thread_t main_tid; 303 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 304 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 305 ->mg_obj = (SV *)length;
193 306
194void block_sig () 307 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 308
198 if (block_sig_level++) 309 if (SvLEN (sv))
310 Safefree (SvPVX (sv));
311
312 SvPVX (sv) = (char *)addr;
313 SvCUR_set (sv, length);
314 SvLEN_set (sv, 0);
315 SvPOK_only (sv);
316}
317
318static void
319sv_clear_foreign (SV *sv)
320{
321 /* todo: iterate over magic and only free ours, but of course */
322 /* the perl5porters will call that (correct) behaviour buggy */
323 sv_unmagic (sv, FOREIGN_MAGIC);
324}
325
326/*****************************************************************************/
327
328/* defines all sorts of constants to 0 unless they are already defined */
329/* also provides const_iv_ and const_niv_ macros for them */
330#include "def0.h"
331
332/*****************************************************************************/
333
334static void
335fiemap (eio_req *req)
336{
337 req->result = -1;
338
339#if HAVE_FIEMAP
340 /* assume some c99 */
341 struct fiemap *fiemap = 0;
342 size_t end_offset;
343 int count = req->int3;
344
345 req->flags |= EIO_FLAG_PTR1_FREE;
346
347 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
348 /* increase in 3.5kb steps */
349 if (count < 0)
350 count = 8;
351
352 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
353 errno = ENOMEM;
354 if (!fiemap)
199 return; 355 return;
200 356
201 if (!main_sig) 357 req->ptr1 = fiemap;
358
359 fiemap->fm_start = req->offs;
360 fiemap->fm_length = req->size;
361 fiemap->fm_flags = req->int2;
362 fiemap->fm_extent_count = count;
363
364 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 365 return;
203 366
204 sigemptyset (&ss); 367 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 368 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 369 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 370 goto done;
208 371
209void unblock_sig () 372 /* else we have to loop -
210{ 373 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 374 * number of extents needed, but linux often feels like not returning all
375 * extents, without telling us it left any out. this complicates
376 * this quite a bit.
377 */
212 378
213 if (--block_sig_level) 379 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 380
216 if (!main_sig) 381 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 { 382 {
249 closedir (wrk->dirp); 383 /* 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; 384 char scratch[3072];
251 } 385 struct fiemap *incmap = (struct fiemap *)scratch;
252 386
253 if (wrk->dbuf) 387 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 388 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 389 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 390 incmap->fm_flags = fiemap->fm_flags;
257 } 391 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 392
260static void worker_free (worker *wrk) 393 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; 394 return;
355 395
356 --q->size; 396 if (!incmap->fm_mapped_extents)
397 goto done;
357 398
358 for (pri = NUM_PRI; pri--; ) 399 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 400 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 401 errno = ENOMEM;
361
362 if (req) 402 if (!fiemap)
403 return;
404
405 req->ptr1 = fiemap;
406
407 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 408 {
364 if (!(q->qs[pri] = req->next)) 409 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 410
367 return req; 411 if (e->fe_logical + e->fe_length >= end_offset)
412 goto done;
413
414 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
415
416 if (e->fe_flags & FIEMAP_EXTENT_LAST)
417 goto done;
418
368 } 419 }
369 } 420 }
370 421
371 abort (); 422done:
372} 423 req->result = 0;
373 424
374static int poll_cb (); 425#else
375static int req_invoke (aio_req req); 426 errno = ENOSYS;
427#endif
428}
429
430/*****************************************************************************/
431
432static int close_fd; /* dummy fd to close fds via dup2 */
433
434enum {
435 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
436};
437
438typedef eio_req *aio_req;
439typedef eio_req *aio_req_ornot;
440typedef eio_wd aio_wd;
441
442static SV *on_next_submit;
443static int next_pri = EIO_PRI_DEFAULT;
444static int max_outstanding;
445
446static s_epipe respipe;
447
376static void req_destroy (aio_req req); 448static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 449static void req_cancel (aio_req req);
378 450
451static void
452want_poll (void)
453{
454 /* write a dummy byte to the pipe so fh becomes ready */
455 s_epipe_signal (&respipe);
456}
457
458static void
459done_poll (void)
460{
461 /* read any signals sent by the worker threads */
462 s_epipe_drain (&respipe);
463}
464
379/* must be called at most once */ 465/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 466static SV *
467req_sv (aio_req req, HV *stash)
381{ 468{
382 if (!req->self) 469 if (!req->self)
383 { 470 {
384 req->self = (SV *)newHV (); 471 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 472 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 473 }
387 474
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 475 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 476}
390 477
391static aio_req SvAIO_REQ (SV *sv) 478static SV *
479newSVaio_wd (aio_wd wd)
480{
481 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
482}
483
484static aio_req
485SvAIO_REQ (SV *sv)
392{ 486{
393 MAGIC *mg; 487 MAGIC *mg;
394 488
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 489 if (!SvROK (sv)
490 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
491 || (SvSTASH (SvRV (sv)) != aio_grp_stash
492 && SvSTASH (SvRV (sv)) != aio_req_stash
493 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 494 croak ("object of class IO::AIO::REQ expected");
397 495
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 496 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 497
400 return mg ? (aio_req)mg->mg_ptr : 0; 498 return mg ? (aio_req)mg->mg_ptr : 0;
401} 499}
402 500
501static aio_wd
502SvAIO_WD (SV *sv)
503{
504 if (!SvROK (sv)
505 || SvTYPE (SvRV (sv)) != SVt_PVMG
506 || SvSTASH (SvRV (sv)) != aio_wd_stash)
507 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
508
509 return (aio_wd)(long)SvIVX (SvRV (sv));
510}
511
512static SV *
513newmortalFH (int fd, int flags)
514{
515 if (fd < 0)
516 return &PL_sv_undef;
517
518 GV *gv = (GV *)sv_newmortal ();
519 char sym[64];
520 int symlen;
521
522 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
523 gv_init (gv, aio_stash, sym, symlen, 0);
524
525 symlen = snprintf (
526 sym,
527 sizeof (sym),
528 "%s&=%d",
529 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530 fd
531 );
532
533 return do_open (gv, sym, symlen, 0, 0, 0, 0)
534 ? (SV *)gv : &PL_sv_undef;
535}
536
537static void
403static void aio_grp_feed (aio_req grp) 538aio_grp_feed (aio_req grp)
404{ 539{
405 block_sig (); 540 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 541 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 542 dSP;
414 543
415 ENTER; 544 ENTER;
416 SAVETMPS; 545 SAVETMPS;
417 PUSHMARK (SP); 546 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 547 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 548 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 549 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 550 SPAGAIN;
422 FREETMPS; 551 FREETMPS;
423 LEAVE; 552 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 } 553 }
434
435 unblock_sig ();
436} 554}
437 555
438static void aio_grp_dec (aio_req grp) 556static void
557req_submit (eio_req *req)
439{ 558{
440 --grp->size; 559 eio_submit (req);
441 560
442 /* call feeder, if applicable */ 561 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 562 {
448 block_sig (); 563 dSP;
564 SV *cb = sv_2mortal (on_next_submit);
449 565
450 if (!req_invoke (grp)) 566 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 567
457 req_destroy (grp); 568 PUSHMARK (SP);
458 unblock_sig (); 569 PUTBACK;
570 call_sv (cb, G_DISCARD | G_EVAL);
459 } 571 }
460} 572}
461 573
574static int
462static int req_invoke (aio_req req) 575req_invoke (eio_req *req)
463{ 576{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 577 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 578 SvREADONLY_off (req->sv2);
468 579
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 580 if (!EIO_CANCELLED (req) && req->callback)
470 { 581 {
582 dSP;
583 static SV *sv_result_cache; /* caches the result integer SV */
584 SV *sv_result;
585
471 ENTER; 586 ENTER;
472 SAVETMPS; 587 SAVETMPS;
473 PUSHMARK (SP); 588 PUSHMARK (SP);
474 EXTEND (SP, 1); 589 EXTEND (SP, 1);
475 590
591 /* do not recreate the result IV from scratch each time */
592 if (expect_true (sv_result_cache))
593 {
594 sv_result = sv_result_cache; sv_result_cache = 0;
595 SvIV_set (sv_result, req->result);
596 SvIOK_only (sv_result);
597 }
598 else
599 {
600 sv_result = newSViv (req->result);
601 SvREADONLY_on (sv_result);
602 }
603
476 switch (req->type) 604 switch (req->type)
477 { 605 {
606 case EIO_WD_OPEN:
607 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
608 break;
609
478 case REQ_READDIR: 610 case EIO_READDIR:
479 { 611 {
480 SV *rv = &PL_sv_undef; 612 SV *rv = &PL_sv_undef;
481 613
482 if (req->result >= 0) 614 if (req->result >= 0)
483 { 615 {
484 int i; 616 int i;
485 char *buf = req->ptr2; 617 char *names = (char *)req->ptr2;
618 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 619 AV *av = newAV ();
487 620
488 av_extend (av, req->result - 1); 621 av_extend (av, req->result - 1);
489 622
490 for (i = 0; i < req->result; ++i) 623 for (i = 0; i < req->result; ++i)
491 { 624 {
492 SV *sv = newSVpv (buf, 0); 625 if (req->int1 & EIO_READDIR_DENTS)
626 {
627 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 628
629 if (req->int1 & EIO_READDIR_CUSTOM2)
630 {
631 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
632 AV *avent = newAV ();
633
634 av_extend (avent, 2);
635
636 if (!sv_type [ent->type])
637 {
638 sv_type [ent->type] = newSViv (ent->type);
639 SvREADONLY_on (sv_type [ent->type]);
640 }
641
642 av_store (avent, 0, namesv);
643 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
644 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
645
646 av_store (av, i, newRV_noinc ((SV *)avent));
647 }
648 else
494 av_store (av, i, sv); 649 av_store (av, i, namesv);
650
651 ++ent;
652 }
653 else
654 {
655 SV *name = newSVpv (names, 0);
656 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 657 names += SvCUR (name) + 1;
658 }
496 } 659 }
497 660
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 661 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 662 }
500 663
501 PUSHs (rv); 664 PUSHs (rv);
665
666 if (req->int1 & EIO_READDIR_CUSTOM1)
667 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 668 }
503 break; 669 break;
504 670
505 case REQ_OPEN: 671 case EIO_OPEN:
672 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
673 break;
674
675 case EIO_STATVFS:
676 case EIO_FSTATVFS:
506 { 677 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 678 SV *rv = &PL_sv_undef;
509 679
680#ifndef _WIN32
510 if (req->result >= 0) 681 if (req->result >= 0)
511 { 682 {
683 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 684 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 685 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 686 * chooses to make it a struct.
515 int symlen;
516 687 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 688 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 689 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 690
520 symlen = snprintf ( 691 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 );
527 692
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 693 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 694 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
695 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
696 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
697 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
698 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
699 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
700 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
701 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
702 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
703 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 704 }
705#endif
531 706
532 PUSHs (fh); 707 PUSHs (rv);
533 } 708 }
709
534 break; 710 break;
535 711
536 case REQ_GROUP: 712 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 713 req->int1 = 2; /* mark group as finished */
538 714
539 if (req->sv1) 715 if (req->sv1)
540 { 716 {
541 int i; 717 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 721 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 722 PUSHs (*av_fetch (av, i, 0));
547 } 723 }
548 break; 724 break;
549 725
550 case REQ_NOP: 726 case EIO_NOP:
551 case REQ_BUSY: 727 case EIO_BUSY:
552 break; 728 break;
553 729
554 case REQ_READLINK: 730 case EIO_READLINK:
731 case EIO_REALPATH:
555 if (req->result > 0) 732 if (req->result > 0)
733 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
734 break;
735
736 case EIO_STAT:
737 case EIO_LSTAT:
738 case EIO_FSTAT:
739 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
740
741 if (!(PL_laststatval = req->result))
742 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
743 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
744
745 PUSHs (sv_result);
746 break;
747
748 case EIO_SEEK:
749 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
750 break;
751
752 case EIO_READ:
753 {
754 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
755 *SvEND (req->sv2) = 0;
756 SvPOK_only (req->sv2);
757 SvSETMAGIC (req->sv2);
758 PUSHs (sv_result);
759 }
760 break;
761
762 case EIO_SLURP:
763 {
764 if (req->result >= 0)
765 {
766 /* if length was originally not known, we steal the malloc'ed memory */
767 if (req->flags & EIO_FLAG_PTR2_FREE)
768 {
769 req->flags &= ~EIO_FLAG_PTR2_FREE;
770 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
771 }
772 else
773 {
774 SvCUR_set (req->sv2, req->result);
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 }
778
779 SvSETMAGIC (req->sv2);
780 }
781
782 PUSHs (sv_result);
783 }
784 break;
785
786 case EIO_CUSTOM:
787 if (req->feed == fiemap)
556 { 788 {
557 SvCUR_set (req->sv2, req->result); 789#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 790 if (!req->result)
791 {
792 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
793
794 if (fiemap->fm_extent_count)
795 {
796 AV *av = newAV ();
797 int i;
798
799 while (fiemap->fm_mapped_extents)
800 {
801 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
802 AV *ext_av = newAV ();
803
804 av_store (ext_av, 3, newSVuv (extent->fe_flags));
805 av_store (ext_av, 2, newSVval64 (extent->fe_length));
806 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
807 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
808
809 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
810 }
811
812 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
813 }
814 else
815 {
816 SvIV_set (sv_result, fiemap->fm_mapped_extents);
817 PUSHs (sv_result);
818 }
819 }
820#endif
560 } 821 }
822 else
823 PUSHs (sv_result);
561 break; 824 break;
562 825
563 case REQ_STAT: 826#if 0
564 case REQ_LSTAT: 827 case EIO_CLOSE:
565 case REQ_FSTAT: 828 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; 829 break;
830#endif
571 831
572 case REQ_READ: 832 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)); 833 if (req->result > 0)
574 *SvEND (req->sv2) = 0; 834 SvIV_set (sv_result, 0);
575 PUSHs (sv_2mortal (newSViv (req->result))); 835 /* FALLTHROUGH */
576 break;
577 836
578 default: 837 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 838 PUSHs (sv_result);
580 break; 839 break;
581 } 840 }
582 841
583 errno = req->errorno; 842 errno = req->errorno;
584 843
585 PUTBACK; 844 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 845 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 846 SPAGAIN;
588 847
848 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
849 SvREFCNT_dec (sv_result);
850 else
851 sv_result_cache = sv_result;
852
589 FREETMPS; 853 FREETMPS;
590 LEAVE; 854 LEAVE;
591 855
592 PUTBACK; 856 PUTBACK;
593 } 857 }
594 858
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 859 return !!SvTRUE (ERRSV);
610} 860}
611 861
862static void
612static void req_destroy (aio_req req) 863req_destroy (aio_req req)
613{ 864{
614 if (req->self) 865 if (req->self)
615 { 866 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 867 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 868 SvREFCNT_dec (req->self);
618 } 869 }
619 870
620 SvREFCNT_dec (req->sv1); 871 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 872 SvREFCNT_dec (req->sv2);
873 SvREFCNT_dec (req->sv3);
874 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 875 SvREFCNT_dec (req->callback);
623 876
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 877 free (req);
628} 878}
629 879
880static void
630static void req_cancel_subs (aio_req grp) 881req_cancel_subs (aio_req grp)
631{ 882{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 883 if (grp->type != EIO_GROUP)
635 return; 884 return;
636 885
637 SvREFCNT_dec (grp->sv2); 886 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 887 grp->sv2 = 0;
639 888
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 889 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 890}
643 891
644static void req_cancel (aio_req req) 892static void ecb_cold
893create_respipe (void)
645{ 894{
646 req->flags |= FLAG_CANCELLED; 895 if (s_epipe_renew (&respipe))
647 896 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 897}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656 898
657static void 899static void
658create_respipe () 900poll_wait (void)
659{ 901{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe))
669#endif
670 croak ("unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread ()
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait ()
791{
792 fd_set rfd;
793
794 while (nreqs) 902 while (eio_nreqs ())
795 { 903 {
796 int size; 904 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 905
906 X_LOCK (EIO_POOL->reslock);
798 size = res_queue.size; 907 size = EIO_POOL->res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 908 X_UNLOCK (EIO_POOL->reslock);
800 909
801 if (size) 910 if (size)
802 return; 911 return;
803 912
804 maybe_start_thread (); 913 etp_maybe_start_thread (EIO_POOL);
805 914
806 FD_ZERO (&rfd); 915 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 916 }
811} 917}
812 918
813static int poll_cb () 919static int
920poll_cb (void)
814{ 921{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 922 for (;;)
828 { 923 {
829 for (;;) 924 int res = eio_poll ();
925
926 if (res > 0)
927 croak (0);
928
929 if (!max_outstanding || max_outstanding > eio_nreqs ())
930 return res;
931
932 poll_wait ();
933 }
934}
935
936static void ecb_cold
937reinit (void)
938{
939 create_respipe ();
940
941 if (eio_init (want_poll, done_poll) < 0)
942 croak ("IO::AIO: unable to initialise eio library");
943}
944
945/*****************************************************************************/
946
947static SV *
948get_cb (SV *cb_sv)
949{
950 SvGETMAGIC (cb_sv);
951 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
952}
953
954static aio_req ecb_noinline
955dreq (SV *callback)
956{
957 SV *cb_cv;
958 aio_req req;
959 int req_pri = next_pri;
960 next_pri = EIO_PRI_DEFAULT;
961
962 cb_cv = get_cb (callback);
963
964 req = calloc (sizeof (*req), 1);
965 if (!req)
966 croak ("out of memory during eio_req allocation");
967
968 req->callback = SvREFCNT_inc (cb_cv);
969 req->pri = req_pri;
970
971 return req;
972}
973
974#define dREQ \
975 aio_req req = dreq (callback); \
976
977#define REQ_SEND \
978 PUTBACK; \
979 req_submit (req); \
980 SPAGAIN; \
981 \
982 if (GIMME_V != G_VOID) \
983 XPUSHs (req_sv (req, aio_req_stash));
984
985ecb_inline void
986req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
987{
988 if (expect_false (SvROK (path)))
989 {
990 SV *rv = SvRV (path);
991 SV *wdob;
992
993 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
830 { 994 {
831 maybe_start_thread (); 995 path = AvARRAY (rv)[1];
996 wdob = AvARRAY (rv)[0];
832 997
833 X_LOCK (reslock); 998 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 999 {
838 --npending; 1000 *wd = SvAIO_WD (wdob);
839 1001 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 } 1002 }
861 else 1003 else
862 { 1004 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 } 1005 }
1006 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1007 {
1008 *wd = (aio_wd)(long)SvIVX (rv);
1009 *wdsv = SvREFCNT_inc_NN (rv);
1010 *ptr = ".";
1011 return; /* path set to "." */
1012 }
1013 else
1014 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1015 }
886 1016
887 if (nreqs <= max_outstanding) 1017 *pathsv = newSVsv (path);
1018 *ptr = SvPVbyte_nolen (*pathsv);
1019}
1020
1021static void ecb_noinline
1022req_set_path1 (aio_req req, SV *path)
1023{
1024 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1025}
1026
1027static void ecb_noinline
1028req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1029{
1030 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1031
1032 switch (SvTYPE (rv))
1033 {
1034 case SVt_PVIO:
1035 case SVt_PVLV:
1036 case SVt_PVGV:
1037 req->type = type_fh;
1038 req->sv1 = newSVsv (fh_or_path);
1039 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
888 break; 1040 break;
889 1041
890 poll_wait (); 1042 default:
891 1043 req->type = type_path;
892 ++maxreqs; 1044 req_set_path1 (req, fh_or_path);
1045 break;
893 } 1046 }
894
895 unblock_sig ();
896 return count;
897} 1047}
898 1048
899/*****************************************************************************/ 1049/*****************************************************************************/
900/* work around various missing functions */
901 1050
902#if !HAVE_PREADWRITE 1051static void
903# define pread aio_pread 1052ts_set (struct timespec *ts, NV value)
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{ 1053{
915 ssize_t res; 1054 ts->tv_sec = value;
916 off_t ooffset; 1055 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926} 1056}
927 1057
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1058static NV
1059ts_get (const struct timespec *ts)
929{ 1060{
930 ssize_t res; 1061 return ts->tv_sec + ts->tv_nsec * 1e-9;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941} 1062}
942#endif
943 1063
944#ifndef HAVE_FUTIMES 1064/*****************************************************************************/
945 1065
946# define utimes(path,times) aio_utimes (path, times) 1066XS(boot_IO__AIO) ecb_cold;
947# define futimes(fd,times) aio_futimes (fd, times)
948 1067
949int aio_utimes (const char *filename, const struct timeval times[2]) 1068MODULE = IO::AIO PACKAGE = IO::AIO
950{
951 if (times)
952 {
953 struct utimbuf buf;
954 1069
955 buf.actime = times[0].tv_sec; 1070PROTOTYPES: ENABLE
956 buf.modtime = times[1].tv_sec;
957 1071
958 return utime (filename, &buf); 1072BOOT:
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{ 1073{
966 errno = ENOSYS; 1074 static const struct {
967 return -1; 1075 const char *name;
968} 1076 IV iv;
1077 } *civ, const_iv[] = {
1078# define const_niv(name, value) { # name, (IV) value },
1079# define const_iv(name) { # name, (IV) name },
1080# define const_eio(name) { # name, (IV) EIO_ ## name },
969 1081
970#endif 1082 /* you have to re-run ./gendef0 after adding/removing any constants here */
1083 /* the first block can be undef if missing */
1084 const_iv (ENOSYS)
1085 const_iv (EXDEV)
1086 const_iv (EBADR)
971 1087
972#if !HAVE_FDATASYNC 1088 /* for lseek */
973# define fdatasync fsync 1089 const_iv (SEEK_DATA)
974#endif 1090 const_iv (SEEK_HOLE)
975 1091
976#if !HAVE_READAHEAD 1092 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1093 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1094 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1095 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1096 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1097 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
978 1098
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1099 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
980{ 1100 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
981 size_t todo = count; 1101 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
982 dBUF; 1102 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1103 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
983 1104
984 while (todo > 0) 1105 /* the second block will be 0 when missing */
985 { 1106 const_iv (O_ACCMODE)
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987 1107
988 pread (fd, aio_buf, len, offset); 1108 const_iv (O_RDONLY)
989 offset += len; 1109 const_iv (O_WRONLY)
990 todo -= len; 1110 const_iv (O_RDWR)
991 } 1111 const_iv (O_CREAT)
1112 const_iv (O_TRUNC)
1113 const_iv (O_EXCL)
1114 const_iv (O_APPEND)
992 1115
993 errno = 0; 1116 const_iv (O_ASYNC)
994 return count; 1117 const_iv (O_DIRECT)
995} 1118 const_iv (O_NOATIME)
996 1119
997#endif 1120 const_iv (O_CLOEXEC)
1121 const_iv (O_NOCTTY)
1122 const_iv (O_NOFOLLOW)
1123 const_iv (O_NONBLOCK)
1124 const_iv (O_EXEC)
1125 const_iv (O_SEARCH)
1126 const_iv (O_DIRECTORY)
1127 const_iv (O_DSYNC)
1128 const_iv (O_RSYNC)
1129 const_iv (O_SYNC)
1130 const_iv (O_PATH)
1131 const_iv (O_TMPFILE)
1132 const_iv (O_TTY_INIT)
998 1133
999#if !HAVE_READDIR_R 1134 const_iv (S_IFIFO)
1000# define readdir_r aio_readdir_r 1135 const_iv (S_IFCHR)
1136 const_iv (S_IFBLK)
1137 const_iv (S_IFLNK)
1138 const_iv (S_IFREG)
1139 const_iv (S_IFDIR)
1140 const_iv (S_IFWHT)
1141 const_iv (S_IFSOCK)
1142 const_iv (S_IFMT)
1001 1143
1002static mutex_t readdirlock = X_MUTEX_INIT; 1144 const_iv (ST_RDONLY)
1003 1145 const_iv (ST_NOSUID)
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 1146 const_iv (ST_NODEV)
1005{ 1147 const_iv (ST_NOEXEC)
1006 X_DIRENT *e; 1148 const_iv (ST_SYNCHRONOUS)
1007 int errorno; 1149 const_iv (ST_MANDLOCK)
1150 const_iv (ST_WRITE)
1151 const_iv (ST_APPEND)
1152 const_iv (ST_IMMUTABLE)
1153 const_iv (ST_NOATIME)
1154 const_iv (ST_NODIRATIME)
1155 const_iv (ST_RELATIME)
1008 1156
1009 X_LOCK (readdirlock); 1157 const_iv (PROT_NONE)
1158 const_iv (PROT_EXEC)
1159 const_iv (PROT_READ)
1160 const_iv (PROT_WRITE)
1010 1161
1011 e = readdir (dirp); 1162 const_iv (MAP_PRIVATE)
1012 errorno = errno; 1163 const_iv (MAP_SHARED)
1164 const_iv (MAP_FIXED)
1165 const_iv (MAP_ANONYMOUS)
1013 1166
1014 if (e) 1167 /* linuxish */
1015 { 1168 const_iv (MAP_LOCKED)
1016 *res = ent; 1169 const_iv (MAP_NORESERVE)
1017 strcpy (ent->d_name, e->d_name); 1170 const_iv (MAP_POPULATE)
1018 } 1171 const_iv (MAP_NONBLOCK)
1019 else 1172 const_iv (MAP_GROWSDOWN)
1020 *res = 0; 1173 const_iv (MAP_32BIT)
1174 const_iv (MAP_HUGETLB)
1175 const_iv (MAP_STACK)
1021 1176
1022 X_UNLOCK (readdirlock); 1177 const_iv (MREMAP_MAYMOVE)
1178 const_iv (MREMAP_FIXED)
1023 1179
1024 errno = errorno; 1180 const_iv (F_DUPFD_CLOEXEC)
1025 return e ? 0 : -1;
1026}
1027#endif
1028 1181
1029/* sendfile always needs emulation */ 1182 const_iv (MSG_CMSG_CLOEXEC)
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1183 const_iv (SOCK_CLOEXEC)
1031{
1032 ssize_t res;
1033 1184
1034 if (!count) 1185 const_iv (F_OFD_GETLK)
1035 return 0; 1186 const_iv (F_OFD_SETLK)
1187 const_iv (F_OFD_GETLKW)
1036 1188
1037#if HAVE_SENDFILE 1189 const_iv (FIFREEZE)
1038# if __linux 1190 const_iv (FITHAW)
1039 res = sendfile (ofd, ifd, &offset, count); 1191 const_iv (FITRIM)
1192 const_iv (FICLONE)
1193 const_iv (FICLONERANGE)
1194 const_iv (FIDEDUPERANGE)
1040 1195
1041# elif __freebsd 1196 const_iv (FS_IOC_GETFLAGS)
1042 /* 1197 const_iv (FS_IOC_SETFLAGS)
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts 1198 const_iv (FS_IOC_GETVERSION)
1044 * wasted on making it similar to other I/O functions. 1199 const_iv (FS_IOC_SETVERSION)
1045 */ 1200 const_iv (FS_IOC_FIEMAP)
1201 const_iv (FS_IOC_FSGETXATTR)
1202 const_iv (FS_IOC_FSSETXATTR)
1203 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1204 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1205 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1206
1207 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1208
1209 const_iv (FS_SECRM_FL)
1210 const_iv (FS_UNRM_FL)
1211 const_iv (FS_COMPR_FL)
1212 const_iv (FS_SYNC_FL)
1213 const_iv (FS_IMMUTABLE_FL)
1214 const_iv (FS_APPEND_FL)
1215 const_iv (FS_NODUMP_FL)
1216 const_iv (FS_NOATIME_FL)
1217 const_iv (FS_DIRTY_FL)
1218 const_iv (FS_COMPRBLK_FL)
1219 const_iv (FS_NOCOMP_FL)
1220 const_iv (FS_ENCRYPT_FL)
1221 const_iv (FS_BTREE_FL)
1222 const_iv (FS_INDEX_FL)
1223 const_iv (FS_JOURNAL_DATA_FL)
1224 const_iv (FS_NOTAIL_FL)
1225 const_iv (FS_DIRSYNC_FL)
1226 const_iv (FS_TOPDIR_FL)
1227 const_iv (FS_FL_USER_MODIFIABLE)
1228
1229 const_iv (FS_XFLAG_REALTIME)
1230 const_iv (FS_XFLAG_PREALLOC)
1231 const_iv (FS_XFLAG_IMMUTABLE)
1232 const_iv (FS_XFLAG_APPEND)
1233 const_iv (FS_XFLAG_SYNC)
1234 const_iv (FS_XFLAG_NOATIME)
1235 const_iv (FS_XFLAG_NODUMP)
1236 const_iv (FS_XFLAG_RTINHERIT)
1237 const_iv (FS_XFLAG_PROJINHERIT)
1238 const_iv (FS_XFLAG_NOSYMLINKS)
1239 const_iv (FS_XFLAG_EXTSIZE)
1240 const_iv (FS_XFLAG_EXTSZINHERIT)
1241 const_iv (FS_XFLAG_NODEFRAG)
1242 const_iv (FS_XFLAG_FILESTREAM)
1243 const_iv (FS_XFLAG_DAX)
1244 const_iv (FS_XFLAG_HASATTR)
1245
1246 const_iv (FIEMAP_FLAG_SYNC)
1247 const_iv (FIEMAP_FLAG_XATTR)
1248 const_iv (FIEMAP_FLAGS_COMPAT)
1249 const_iv (FIEMAP_EXTENT_LAST)
1250 const_iv (FIEMAP_EXTENT_UNKNOWN)
1251 const_iv (FIEMAP_EXTENT_DELALLOC)
1252 const_iv (FIEMAP_EXTENT_ENCODED)
1253 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1254 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1255 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1256 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1257 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1258 const_iv (FIEMAP_EXTENT_MERGED)
1259 const_iv (FIEMAP_EXTENT_SHARED)
1260
1261 const_iv (SPLICE_F_MOVE)
1262 const_iv (SPLICE_F_NONBLOCK)
1263 const_iv (SPLICE_F_MORE)
1264 const_iv (SPLICE_F_GIFT)
1265
1266 const_iv (EFD_CLOEXEC)
1267 const_iv (EFD_NONBLOCK)
1268 const_iv (EFD_SEMAPHORE)
1269
1270 const_iv (CLOCK_REALTIME)
1271 const_iv (CLOCK_MONOTONIC)
1272 const_iv (CLOCK_BOOTTIME)
1273 const_iv (CLOCK_REALTIME_ALARM)
1274 const_iv (CLOCK_BOOTTIME_ALARM)
1275
1276 const_iv (TFD_NONBLOCK)
1277 const_iv (TFD_CLOEXEC)
1278
1279 const_iv (TFD_TIMER_ABSTIME)
1280 const_iv (TFD_TIMER_CANCEL_ON_SET)
1281
1282 /* these are libeio constants, and are independent of gendef0 */
1283 const_eio (SEEK_SET)
1284 const_eio (SEEK_CUR)
1285 const_eio (SEEK_END)
1286
1287 const_eio (MCL_FUTURE)
1288 const_eio (MCL_CURRENT)
1289 const_eio (MCL_ONFAULT)
1290
1291 const_eio (MS_ASYNC)
1292 const_eio (MS_INVALIDATE)
1293 const_eio (MS_SYNC)
1294
1295 const_eio (MT_MODIFY)
1296
1297 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1298 const_eio (SYNC_FILE_RANGE_WRITE)
1299 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1300
1301 const_eio (FALLOC_FL_KEEP_SIZE)
1302 const_eio (FALLOC_FL_PUNCH_HOLE)
1303 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1304 const_eio (FALLOC_FL_ZERO_RANGE)
1305 const_eio (FALLOC_FL_INSERT_RANGE)
1306 const_eio (FALLOC_FL_UNSHARE_RANGE)
1307
1308 const_eio (RENAME_NOREPLACE)
1309 const_eio (RENAME_EXCHANGE)
1310 const_eio (RENAME_WHITEOUT)
1311
1312 const_eio (READDIR_DENTS)
1313 const_eio (READDIR_DIRS_FIRST)
1314 const_eio (READDIR_STAT_ORDER)
1315 const_eio (READDIR_FOUND_UNKNOWN)
1316
1317 const_eio (DT_UNKNOWN)
1318 const_eio (DT_FIFO)
1319 const_eio (DT_CHR)
1320 const_eio (DT_DIR)
1321 const_eio (DT_BLK)
1322 const_eio (DT_REG)
1323 const_eio (DT_LNK)
1324 const_eio (DT_SOCK)
1325 const_eio (DT_WHT)
1326 };
1327
1328 aio_stash = gv_stashpv ("IO::AIO" , 1);
1329 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1330 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1331 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1332
1333 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1334 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1335
1336 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1337
1338 /* allocate dummy pipe fd for aio_close */
1046 { 1339 {
1047 off_t sbytes; 1340 int pipefd [2];
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049 1341
1050 if (res < 0 && sbytes) 1342 if (
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1343#ifdef _WIN32
1052 res = sbytes; 1344 _pipe (pipefd, 1, _O_BINARY) < 0
1345#else
1346 pipe (pipefd) < 0
1347 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1348#endif
1349 || close (pipefd [1]) < 0
1350 )
1351 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1352
1353 close_fd = pipefd [0];
1053 } 1354 }
1054 1355
1055# elif __hpux 1356 reinit ();
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120} 1357}
1121 1358
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183/*****************************************************************************/
1184
1185X_THREAD_PROC (aio_proc)
1186{
1187 {//D
1188 aio_req req;
1189 struct timespec ts;
1190 worker *self = (worker *)thr_arg;
1191
1192 /* try to distribute timeouts somewhat randomly */
1193 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1194
1195 for (;;)
1196 {
1197 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1198
1199 X_LOCK (reqlock);
1200
1201 for (;;)
1202 {
1203 self->req = req = reqq_shift (&req_queue);
1204
1205 if (req)
1206 break;
1207
1208 ++idle;
1209
1210 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1211 == ETIMEDOUT)
1212 {
1213 if (idle > max_idle)
1214 {
1215 --idle;
1216 X_UNLOCK (reqlock);
1217 X_LOCK (wrklock);
1218 --started;
1219 X_UNLOCK (wrklock);
1220 goto quit;
1221 }
1222
1223 /* we are allowed to idle, so do so without any timeout */
1224 X_COND_WAIT (reqwait, reqlock);
1225 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1226 }
1227
1228 --idle;
1229 }
1230
1231 --nready;
1232
1233 X_UNLOCK (reqlock);
1234
1235 errno = 0; /* strictly unnecessary */
1236
1237 if (!(req->flags & FLAG_CANCELLED))
1238 switch (req->type)
1239 {
1240 case REQ_READ: req->result = req->offs >= 0
1241 ? pread (req->int1, req->ptr1, req->size, req->offs)
1242 : read (req->int1, req->ptr1, req->size); break;
1243 case REQ_WRITE: req->result = req->offs >= 0
1244 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1245 : write (req->int1, req->ptr1, req->size); break;
1246
1247 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1248 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1249
1250 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1252 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1253
1254 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1255 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1256 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1257 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1258 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1259 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1260
1261 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1262 case REQ_CLOSE: req->result = close (req->int1); break;
1263 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1264 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1265 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1266 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1267 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1268 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1269 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1270 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1271
1272 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1273 case REQ_FSYNC: req->result = fsync (req->int1); break;
1274 case REQ_READDIR: scandir_ (req, self); break;
1275
1276 case REQ_BUSY:
1277#ifdef _WIN32
1278 Sleep (req->nv1 * 1000.);
1279#else
1280 {
1281 struct timeval tv;
1282
1283 tv.tv_sec = req->nv1;
1284 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1285
1286 req->result = select (0, 0, 0, 0, &tv);
1287 }
1288#endif
1289 break;
1290
1291 case REQ_UTIME:
1292 case REQ_FUTIME:
1293 {
1294 struct timeval tv[2];
1295 struct timeval *times;
1296
1297 if (req->nv1 != -1. || req->nv2 != -1.)
1298 {
1299 tv[0].tv_sec = req->nv1;
1300 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1301 tv[1].tv_sec = req->nv2;
1302 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1303
1304 times = tv;
1305 }
1306 else
1307 times = 0;
1308
1309
1310 req->result = req->type == REQ_FUTIME
1311 ? futimes (req->int1, times)
1312 : utimes (req->ptr1, times);
1313 }
1314
1315 case REQ_GROUP:
1316 case REQ_NOP:
1317 break;
1318
1319 case REQ_QUIT:
1320 goto quit;
1321
1322 default:
1323 req->result = -1;
1324 break;
1325 }
1326
1327 req->errorno = errno;
1328
1329 X_LOCK (reslock);
1330
1331 ++npending;
1332
1333 if (!reqq_push (&res_queue, req))
1334 {
1335 /* write a dummy byte to the pipe so fh becomes ready */
1336 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1337
1338 /* optionally signal the main thread asynchronously */
1339 if (main_sig)
1340 pthread_kill (main_tid, main_sig);
1341 }
1342
1343 self->req = 0;
1344 worker_clear (self);
1345
1346 X_UNLOCK (reslock);
1347 }
1348
1349quit:
1350 X_LOCK (wrklock);
1351 worker_free (self);
1352 X_UNLOCK (wrklock);
1353
1354 return 0;
1355 }//D
1356}
1357
1358/*****************************************************************************/
1359
1360static void atfork_prepare (void)
1361{
1362 X_LOCK (wrklock);
1363 X_LOCK (reqlock);
1364 X_LOCK (reslock);
1365#if !HAVE_PREADWRITE
1366 X_LOCK (preadwritelock);
1367#endif
1368#if !HAVE_READDIR_R
1369 X_LOCK (readdirlock);
1370#endif
1371}
1372
1373static void atfork_parent (void)
1374{
1375#if !HAVE_READDIR_R
1376 X_UNLOCK (readdirlock);
1377#endif
1378#if !HAVE_PREADWRITE
1379 X_UNLOCK (preadwritelock);
1380#endif
1381 X_UNLOCK (reslock);
1382 X_UNLOCK (reqlock);
1383 X_UNLOCK (wrklock);
1384}
1385
1386static void atfork_child (void)
1387{
1388 aio_req prv;
1389
1390 while (prv = reqq_shift (&req_queue))
1391 req_destroy (prv);
1392
1393 while (prv = reqq_shift (&res_queue))
1394 req_destroy (prv);
1395
1396 while (wrk_first.next != &wrk_first)
1397 {
1398 worker *wrk = wrk_first.next;
1399
1400 if (wrk->req)
1401 req_destroy (wrk->req);
1402
1403 worker_clear (wrk);
1404 worker_free (wrk);
1405 }
1406
1407 started = 0;
1408 idle = 0;
1409 nreqs = 0;
1410 nready = 0;
1411 npending = 0;
1412
1413 create_respipe ();
1414
1415 atfork_parent ();
1416}
1417
1418#define dREQ \
1419 aio_req req; \
1420 int req_pri = next_pri; \
1421 next_pri = DEFAULT_PRI + PRI_BIAS; \
1422 \
1423 if (SvOK (callback) && !SvROK (callback)) \
1424 croak ("callback must be undef or of reference type"); \
1425 \
1426 Newz (0, req, 1, aio_cb); \
1427 if (!req) \
1428 croak ("out of memory during aio_req allocation"); \
1429 \
1430 req->callback = newSVsv (callback); \
1431 req->pri = req_pri
1432
1433#define REQ_SEND \
1434 req_send (req); \
1435 \
1436 if (GIMME_V != G_VOID) \
1437 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1438
1439MODULE = IO::AIO PACKAGE = IO::AIO
1440
1441PROTOTYPES: ENABLE
1442
1443BOOT:
1444{
1445 stash = gv_stashpv ("IO::AIO", 1);
1446
1447 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1448 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1449 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1450 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1451 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1452#ifdef _WIN32
1453 X_MUTEX_CHECK (wrklock);
1454 X_MUTEX_CHECK (reslock);
1455 X_MUTEX_CHECK (reqlock);
1456 X_MUTEX_CHECK (reqwait);
1457 X_MUTEX_CHECK (preadwritelock);
1458 X_MUTEX_CHECK (readdirlock);
1459
1460 X_COND_CHECK (reqwait);
1461#else
1462 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1463 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1464#endif
1465
1466 create_respipe ();
1467
1468 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1469}
1470
1471void 1359void
1360reinit ()
1361 PROTOTYPE:
1362
1363void
1472max_poll_reqs (int nreqs) 1364max_poll_reqs (unsigned int nreqs)
1473 PROTOTYPE: $ 1365 PROTOTYPE: $
1474 CODE: 1366 CODE:
1475 max_poll_reqs = nreqs; 1367 eio_set_max_poll_reqs (nreqs);
1476 1368
1477void 1369void
1478max_poll_time (double nseconds) 1370max_poll_time (double nseconds)
1479 PROTOTYPE: $ 1371 PROTOTYPE: $
1480 CODE: 1372 CODE:
1481 max_poll_time = nseconds * AIO_TICKS; 1373 eio_set_max_poll_time (nseconds);
1482 1374
1483void 1375void
1484min_parallel (int nthreads) 1376min_parallel (unsigned int nthreads)
1485 PROTOTYPE: $
1486
1487void
1488max_parallel (int nthreads)
1489 PROTOTYPE: $
1490
1491void
1492max_idle (int nthreads)
1493 PROTOTYPE: $ 1377 PROTOTYPE: $
1494 CODE: 1378 CODE:
1495 set_max_idle (nthreads); 1379 eio_set_min_parallel (nthreads);
1496 1380
1497int 1381void
1498max_outstanding (int maxreqs) 1382max_parallel (unsigned int nthreads)
1499 PROTOTYPE: $ 1383 PROTOTYPE: $
1500 CODE: 1384 CODE:
1501 RETVAL = max_outstanding; 1385 eio_set_max_parallel (nthreads);
1386
1387void
1388max_idle (unsigned int nthreads)
1389 PROTOTYPE: $
1390 CODE:
1391 eio_set_max_idle (nthreads);
1392
1393void
1394idle_timeout (unsigned int seconds)
1395 PROTOTYPE: $
1396 CODE:
1397 eio_set_idle_timeout (seconds);
1398
1399void
1400max_outstanding (unsigned int maxreqs)
1401 PROTOTYPE: $
1402 CODE:
1502 max_outstanding = maxreqs; 1403 max_outstanding = maxreqs;
1503 OUTPUT:
1504 RETVAL
1505 1404
1506void 1405void
1507aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1406aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1508 PROTOTYPE: $$$;$
1509 PPCODE: 1407 PPCODE:
1510{ 1408{
1511 dREQ; 1409 dREQ;
1512 1410
1411 req->type = EIO_WD_OPEN;
1412 req_set_path1 (req, pathname);
1413
1414 REQ_SEND;
1415}
1416
1417void
1418aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1419 PPCODE:
1420{
1421 dREQ;
1422
1513 req->type = REQ_OPEN; 1423 req->type = EIO_OPEN;
1514 req->sv1 = newSVsv (pathname); 1424 req_set_path1 (req, pathname);
1515 req->ptr1 = SvPVbyte_nolen (req->sv1);
1516 req->int1 = flags; 1425 req->int1 = flags;
1517 req->mode = mode; 1426 req->int2 = mode;
1518 1427
1519 REQ_SEND; 1428 REQ_SEND;
1520} 1429}
1521 1430
1522void 1431void
1523aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1432aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1524 PROTOTYPE: $;$
1525 ALIAS: 1433 ALIAS:
1526 aio_fsync = REQ_FSYNC 1434 aio_fsync = EIO_FSYNC
1527 aio_fdatasync = REQ_FDATASYNC 1435 aio_fdatasync = EIO_FDATASYNC
1436 aio_syncfs = EIO_SYNCFS
1528 PPCODE: 1437 PPCODE:
1529{ 1438{
1439 int fd = s_fileno_croak (fh, 0);
1530 dREQ; 1440 dREQ;
1531 1441
1532 req->type = ix; 1442 req->type = ix;
1533 req->sv1 = newSVsv (fh); 1443 req->sv1 = newSVsv (fh);
1534 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1444 req->int1 = fd;
1535 1445
1536 REQ_SEND (req); 1446 REQ_SEND;
1537} 1447}
1538 1448
1539int
1540_dup (int fd)
1541 PROTOTYPE: $
1542 CODE:
1543 RETVAL = dup (fd);
1544 OUTPUT:
1545 RETVAL
1546
1547void 1449void
1548_aio_close (int fd, SV *callback=&PL_sv_undef) 1450aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1549 PROTOTYPE: $;$
1550 PPCODE: 1451 PPCODE:
1551{ 1452{
1453 int fd = s_fileno_croak (fh, 0);
1552 dREQ; 1454 dREQ;
1553 1455
1554 req->type = REQ_CLOSE; 1456 req->type = EIO_SYNC_FILE_RANGE;
1457 req->sv1 = newSVsv (fh);
1555 req->int1 = fd; 1458 req->int1 = fd;
1459 req->offs = offset;
1460 req->size = nbytes;
1461 req->int2 = flags;
1556 1462
1557 REQ_SEND (req); 1463 REQ_SEND;
1558} 1464}
1559 1465
1560void 1466void
1467aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1468 PPCODE:
1469{
1470 int fd = s_fileno_croak (fh, 0);
1471 dREQ;
1472
1473 req->type = EIO_FALLOCATE;
1474 req->sv1 = newSVsv (fh);
1475 req->int1 = fd;
1476 req->int2 = mode;
1477 req->offs = offset;
1478 req->size = len;
1479
1480 REQ_SEND;
1481}
1482
1483void
1484aio_close (SV *fh, SV *callback = &PL_sv_undef)
1485 PPCODE:
1486{
1487 int fd = s_fileno_croak (fh, 0);
1488 dREQ;
1489#if 0
1490 /* partially duplicate logic in s_fileno */
1491 SvGETMAGIC (fh);
1492
1493 if (SvROK (fh))
1494 {
1495 fh = SvRV (fh);
1496 SvGETMAGIC (fh);
1497 }
1498
1499 if (SvTYPE (fh) == SVt_PVGV)
1500 {
1501 /* perl filehandle */
1502 PerlIOUnix_refcnt_inc (fd);
1503 do_close ((GV *)fh, 1);
1504
1505 req->type = EIO_CLOSE;
1506 req->int1 = fd;
1507 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1508 }
1509 else
1510#endif
1511 {
1512 /* fd number */
1513 req->type = EIO_DUP2;
1514 req->int1 = close_fd;
1515 req->sv2 = newSVsv (fh);
1516 req->int2 = fd;
1517 }
1518
1519 REQ_SEND;
1520}
1521
1522void
1523aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1524 PPCODE:
1525{
1526 int fd = s_fileno_croak (fh, 0);
1527 dREQ;
1528
1529 req->type = EIO_SEEK;
1530 req->sv1 = newSVsv (fh);
1531 req->int1 = fd;
1532 req->offs = SvVAL64 (offset);
1533 req->int2 = whence;
1534
1535 REQ_SEND;
1536}
1537
1538void
1561aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1539aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1562 ALIAS: 1540 ALIAS:
1563 aio_read = REQ_READ 1541 aio_read = EIO_READ
1564 aio_write = REQ_WRITE 1542 aio_write = EIO_WRITE
1565 PROTOTYPE: $$$$$;$
1566 PPCODE: 1543 PPCODE:
1567{ 1544{
1568 STRLEN svlen; 1545 STRLEN svlen;
1546 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1569 char *svptr = SvPVbyte (data, svlen); 1547 char *svptr = SvPVbyte (data, svlen);
1570 UV len = SvUV (length); 1548 UV len = SvUV (length);
1571 1549
1572 SvUPGRADE (data, SVt_PV);
1573 SvPOK_on (data);
1574
1575 if (dataoffset < 0) 1550 if (dataoffset < 0)
1576 dataoffset += svlen; 1551 dataoffset += svlen;
1577 1552
1578 if (dataoffset < 0 || dataoffset > svlen) 1553 if (dataoffset < 0 || dataoffset > svlen)
1579 croak ("dataoffset outside of data scalar"); 1554 croak ("dataoffset outside of data scalar");
1580 1555
1581 if (ix == REQ_WRITE) 1556 if (ix == EIO_WRITE)
1582 { 1557 {
1583 /* write: check length and adjust. */ 1558 /* write: check length and adjust. */
1584 if (!SvOK (length) || len + dataoffset > svlen) 1559 if (!SvOK (length) || len + dataoffset > svlen)
1585 len = svlen - dataoffset; 1560 len = svlen - dataoffset;
1586 } 1561 }
1587 else 1562 else
1588 { 1563 {
1589 /* read: grow scalar as necessary */ 1564 /* read: check type and grow scalar as necessary */
1565 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1590 svptr = SvGROW (data, len + dataoffset + 1); 1566 svptr = sv_grow (data, len + dataoffset + 1);
1567 else if (SvCUR (data) < len + dataoffset)
1568 croak ("length + dataoffset outside of scalar, and cannot grow");
1591 } 1569 }
1592
1593 if (len < 0)
1594 croak ("length must not be negative");
1595 1570
1596 { 1571 {
1597 dREQ; 1572 dREQ;
1598 1573
1599 req->type = ix; 1574 req->type = ix;
1600 req->sv1 = newSVsv (fh); 1575 req->sv1 = newSVsv (fh);
1601 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1576 req->int1 = fd;
1602 : IoOFP (sv_2io (fh)));
1603 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1577 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1604 req->size = len; 1578 req->size = len;
1605 req->sv2 = SvREFCNT_inc (data); 1579 req->sv2 = SvREFCNT_inc (data);
1606 req->ptr1 = (char *)svptr + dataoffset; 1580 req->ptr2 = (char *)svptr + dataoffset;
1607 req->stroffset = dataoffset; 1581 req->stroffset = dataoffset;
1608 1582
1609 if (!SvREADONLY (data)) 1583 if (!SvREADONLY (data))
1610 { 1584 {
1611 SvREADONLY_on (data); 1585 SvREADONLY_on (data);
… …
1615 REQ_SEND; 1589 REQ_SEND;
1616 } 1590 }
1617} 1591}
1618 1592
1619void 1593void
1620aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1594aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1621 PROTOTYPE: $$;$ 1595 ALIAS:
1596 aio_ioctl = EIO_IOCTL
1597 aio_fcntl = EIO_FCNTL
1622 PPCODE: 1598 PPCODE:
1623{ 1599{
1624 SV *data; 1600 int fd = s_fileno_croak (fh, 0);
1625 dREQ; 1601 char *svptr;
1626 1602
1627 data = newSV (NAME_MAX); 1603 if (SvPOK (arg) || !SvNIOK (arg))
1628 SvPOK_on (data);
1629
1630 req->type = REQ_READLINK;
1631 req->sv1 = newSVsv (path);
1632 req->ptr2 = SvPVbyte_nolen (req->sv1);
1633 req->sv2 = data;
1634 req->ptr1 = SvPVbyte_nolen (data);
1635
1636 REQ_SEND;
1637}
1638
1639void
1640aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1641 PROTOTYPE: $$$$;$
1642 PPCODE:
1643{
1644 dREQ;
1645
1646 req->type = REQ_SENDFILE;
1647 req->sv1 = newSVsv (out_fh);
1648 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1649 req->sv2 = newSVsv (in_fh);
1650 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1651 req->offs = SvVAL64 (in_offset);
1652 req->size = length;
1653
1654 REQ_SEND;
1655}
1656
1657void
1658aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1659 PROTOTYPE: $$$;$
1660 PPCODE:
1661{
1662 dREQ;
1663
1664 req->type = REQ_READAHEAD;
1665 req->sv1 = newSVsv (fh);
1666 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1667 req->offs = SvVAL64 (offset);
1668 req->size = length;
1669
1670 REQ_SEND;
1671}
1672
1673void
1674aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1675 ALIAS:
1676 aio_stat = REQ_STAT
1677 aio_lstat = REQ_LSTAT
1678 PPCODE:
1679{
1680 dREQ;
1681
1682 req->ptr2 = malloc (sizeof (Stat_t));
1683 if (!req->ptr2)
1684 { 1604 {
1685 req_destroy (req); 1605 STRLEN svlen;
1686 croak ("out of memory during aio_stat statdata allocation"); 1606 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1687 } 1607#ifdef IOCPARM_LEN
1608 STRLEN need = IOCPARM_LEN (request);
1609#else
1610 STRLEN need = 256;
1611#endif
1688 1612
1689 req->flags |= FLAG_PTR2_FREE; 1613 if (svlen < need)
1690 req->sv1 = newSVsv (fh_or_path); 1614 svptr = SvGROW (arg, need);
1691
1692 if (SvPOK (fh_or_path))
1693 {
1694 req->type = ix;
1695 req->ptr1 = SvPVbyte_nolen (req->sv1);
1696 } 1615 }
1697 else 1616 else
1617 svptr = (char *)SvIV (arg);
1618
1698 { 1619 {
1620 dREQ;
1621
1699 req->type = REQ_FSTAT; 1622 req->type = ix;
1700 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1623 req->sv1 = newSVsv (fh);
1624 req->int1 = fd;
1625 req->int2 = (long)request;
1626 req->sv2 = SvREFCNT_inc (arg);
1627 req->ptr2 = svptr;
1628
1629 REQ_SEND;
1701 } 1630 }
1631}
1632
1633void
1634aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1635 ALIAS:
1636 aio_readlink = EIO_READLINK
1637 aio_realpath = EIO_REALPATH
1638 PPCODE:
1639{
1640 dREQ;
1641
1642 req->type = ix;
1643 req_set_path1 (req, pathname);
1702 1644
1703 REQ_SEND; 1645 REQ_SEND;
1704} 1646}
1705 1647
1706void 1648void
1649aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1650 PPCODE:
1651{
1652 int ifd = s_fileno_croak (in_fh , 0);
1653 int ofd = s_fileno_croak (out_fh, 1);
1654 dREQ;
1655
1656 req->type = EIO_SENDFILE;
1657 req->sv1 = newSVsv (out_fh);
1658 req->int1 = ofd;
1659 req->sv2 = newSVsv (in_fh);
1660 req->int2 = ifd;
1661 req->offs = in_offset;
1662 req->size = length;
1663
1664 REQ_SEND;
1665}
1666
1667void
1668aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1669 PPCODE:
1670{
1671 int fd = s_fileno_croak (fh, 0);
1672 dREQ;
1673
1674 req->type = EIO_READAHEAD;
1675 req->sv1 = newSVsv (fh);
1676 req->int1 = fd;
1677 req->offs = offset;
1678 req->size = length;
1679
1680 REQ_SEND;
1681}
1682
1683void
1684aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1685 ALIAS:
1686 aio_stat = EIO_STAT
1687 aio_lstat = EIO_LSTAT
1688 aio_statvfs = EIO_STATVFS
1689 PPCODE:
1690{
1691 dREQ;
1692
1693 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1694
1695 REQ_SEND;
1696}
1697
1698void
1699st_xtime ()
1700 ALIAS:
1701 st_atime = 0x01
1702 st_mtime = 0x02
1703 st_ctime = 0x04
1704 st_btime = 0x08
1705 st_xtime = 0x0f
1706 PPCODE:
1707 EXTEND (SP, 4);
1708 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1709 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1710 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1711 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1712
1713void
1714st_xtimensec ()
1715 ALIAS:
1716 st_atimensec = 0x01
1717 st_mtimensec = 0x02
1718 st_ctimensec = 0x04
1719 st_btimensec = 0x08
1720 st_xtimensec = 0x0f
1721 st_btimesec = 0x10
1722 st_gen = 0x20
1723 PPCODE:
1724 EXTEND (SP, 4);
1725 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1726 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1727 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1728 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1729 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1730 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1731
1732UV
1733major (UV dev)
1734 ALIAS:
1735 minor = 1
1736 CODE:
1737 RETVAL = ix ? minor (dev) : major (dev);
1738 OUTPUT:
1739 RETVAL
1740
1741UV
1742makedev (UV maj, UV min)
1743 CODE:
1744 RETVAL = makedev (maj, min);
1745 OUTPUT:
1746 RETVAL
1747
1748void
1707aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1749aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1708 PPCODE: 1750 PPCODE:
1709{ 1751{
1710 dREQ; 1752 dREQ;
1711 1753
1712 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1754 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1713 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1755 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1714 req->sv1 = newSVsv (fh_or_path); 1756 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1715
1716 if (SvPOK (fh_or_path))
1717 {
1718 req->type = REQ_UTIME;
1719 req->ptr1 = SvPVbyte_nolen (req->sv1);
1720 }
1721 else
1722 {
1723 req->type = REQ_FUTIME;
1724 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1725 }
1726 1757
1727 REQ_SEND; 1758 REQ_SEND;
1728} 1759}
1729 1760
1730void 1761void
1731aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1762aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1732 PPCODE: 1763 PPCODE:
1733{ 1764{
1734 dREQ; 1765 dREQ;
1735 1766
1736 req->sv1 = newSVsv (fh_or_path);
1737 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1767 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1738 1768 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1739 if (SvPOK (fh_or_path))
1740 {
1741 req->type = REQ_TRUNCATE;
1742 req->ptr1 = SvPVbyte_nolen (req->sv1);
1743 }
1744 else
1745 {
1746 req->type = REQ_FTRUNCATE;
1747 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1748 }
1749 1769
1750 REQ_SEND; 1770 REQ_SEND;
1751} 1771}
1752 1772
1753void 1773void
1754aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1774aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1755 PPCODE: 1775 PPCODE:
1756{ 1776{
1757 dREQ; 1777 dREQ;
1758 1778
1759 req->mode = mode; 1779 req->int2 = mode;
1760 req->sv1 = newSVsv (fh_or_path); 1780 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1761
1762 if (SvPOK (fh_or_path))
1763 {
1764 req->type = REQ_CHMOD;
1765 req->ptr1 = SvPVbyte_nolen (req->sv1);
1766 }
1767 else
1768 {
1769 req->type = REQ_FCHMOD;
1770 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1771 }
1772 1781
1773 REQ_SEND; 1782 REQ_SEND;
1774} 1783}
1775 1784
1776void 1785void
1777aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1786aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1778 PPCODE: 1787 PPCODE:
1779{ 1788{
1780 dREQ; 1789 dREQ;
1781 1790
1782 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1791 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1783 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1792 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1784 req->sv1 = newSVsv (fh_or_path); 1793 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1785
1786 if (SvPOK (fh_or_path))
1787 {
1788 req->type = REQ_CHOWN;
1789 req->ptr1 = SvPVbyte_nolen (req->sv1);
1790 }
1791 else
1792 {
1793 req->type = REQ_FCHOWN;
1794 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1795 }
1796 1794
1797 REQ_SEND; 1795 REQ_SEND;
1798} 1796}
1799 1797
1800void 1798void
1799aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1800 PPCODE:
1801{
1802 dREQ;
1803
1804 req->type = EIO_READDIR;
1805 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1806
1807 if (flags & EIO_READDIR_DENTS)
1808 req->int1 |= EIO_READDIR_CUSTOM2;
1809
1810 req_set_path1 (req, pathname);
1811
1812 REQ_SEND;
1813}
1814
1815void
1816aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1817 PPCODE:
1818{
1819 dREQ;
1820
1821 req->type = EIO_MKDIR;
1822 req->int2 = mode;
1823 req_set_path1 (req, pathname);
1824
1825 REQ_SEND;
1826}
1827
1828void
1801aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1829aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1802 ALIAS: 1830 ALIAS:
1803 aio_unlink = REQ_UNLINK 1831 aio_unlink = EIO_UNLINK
1804 aio_rmdir = REQ_RMDIR 1832 aio_rmdir = EIO_RMDIR
1805 aio_readdir = REQ_READDIR 1833 aio_readdir = EIO_READDIR
1806 PPCODE: 1834 PPCODE:
1807{ 1835{
1808 dREQ; 1836 dREQ;
1809 1837
1810 req->type = ix; 1838 req->type = ix;
1811 req->sv1 = newSVsv (pathname); 1839 req_set_path1 (req, pathname);
1812 req->ptr1 = SvPVbyte_nolen (req->sv1);
1813 1840
1814 REQ_SEND; 1841 REQ_SEND;
1815} 1842}
1816 1843
1817void 1844void
1818aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1845aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1846 ALIAS:
1847 aio_link = EIO_LINK
1848 aio_symlink = EIO_SYMLINK
1849 aio_rename = EIO_RENAME
1819 PPCODE: 1850 PPCODE:
1820{ 1851{
1821 dREQ; 1852 eio_wd wd2 = 0;
1822
1823 req->type = REQ_MKDIR;
1824 req->sv1 = newSVsv (pathname);
1825 req->ptr1 = SvPVbyte_nolen (req->sv1);
1826 req->mode = mode;
1827
1828 REQ_SEND;
1829}
1830
1831void
1832aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1833 ALIAS:
1834 aio_link = REQ_LINK
1835 aio_symlink = REQ_SYMLINK
1836 aio_rename = REQ_RENAME
1837 PPCODE:
1838{
1839 dREQ; 1853 dREQ;
1840 1854
1841 req->type = ix; 1855 req->type = ix;
1842 req->sv2 = newSVsv (oldpath); 1856 req_set_path1 (req, oldpath);
1843 req->ptr2 = SvPVbyte_nolen (req->sv2); 1857 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1844 req->sv1 = newSVsv (newpath); 1858 req->int3 = (long)wd2;
1845 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 1859
1847 REQ_SEND; 1860 REQ_SEND;
1848} 1861}
1849 1862
1850void 1863void
1851aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1864aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1852 PPCODE: 1865 PPCODE:
1853{ 1866{
1867 eio_wd wd2 = 0;
1854 dREQ; 1868 dREQ;
1855 1869
1856 req->type = REQ_MKNOD; 1870 req->type = EIO_RENAME;
1857 req->sv1 = newSVsv (pathname); 1871 req_set_path1 (req, oldpath);
1858 req->ptr1 = SvPVbyte_nolen (req->sv1); 1872 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1859 req->mode = (mode_t)mode; 1873 req->int2 = flags;
1860 req->offs = dev; 1874 req->int3 = (long)wd2;
1861 1875
1862 REQ_SEND; 1876 REQ_SEND;
1863} 1877}
1864 1878
1865void 1879void
1866aio_busy (double delay, SV *callback=&PL_sv_undef) 1880aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1867 PPCODE: 1881 PPCODE:
1868{ 1882{
1869 dREQ; 1883 dREQ;
1884
1885 req->type = EIO_MKNOD;
1886 req->int2 = (mode_t)mode;
1887 req->offs = dev;
1888 req_set_path1 (req, pathname);
1889
1890 REQ_SEND;
1891}
1870 1892
1893void
1894aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1895 ALIAS:
1896 aio_mtouch = EIO_MTOUCH
1897 aio_msync = EIO_MSYNC
1898 PPCODE:
1899{
1900 STRLEN svlen;
1901 char *svptr = SvPVbyte (data, svlen);
1902 UV len = SvUV (length);
1903
1904 if (flags < 0)
1905 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1906
1907 if (offset < 0)
1908 offset += svlen;
1909
1910 if (offset < 0 || offset > svlen)
1911 croak ("offset outside of scalar");
1912
1913 if (!SvOK (length) || len + offset > svlen)
1914 len = svlen - offset;
1915
1916 {
1917 dREQ;
1918
1919 req->type = ix;
1920 req->sv2 = SvREFCNT_inc (data);
1921 req->ptr2 = (char *)svptr + offset;
1922 req->size = len;
1923 req->int1 = flags;
1924
1925 REQ_SEND;
1926 }
1927}
1928
1929void
1930aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1931 PPCODE:
1932{
1933 STRLEN svlen;
1934 char *svptr = SvPVbyte (data, svlen);
1935 UV len = SvUV (length);
1936
1937 if (offset < 0)
1938 offset += svlen;
1939
1940 if (offset < 0 || offset > svlen)
1941 croak ("offset outside of scalar");
1942
1943 if (!SvOK (length) || len + offset > svlen)
1944 len = svlen - offset;
1945
1946 {
1947 dREQ;
1948
1949 req->type = EIO_MLOCK;
1950 req->sv2 = SvREFCNT_inc (data);
1951 req->ptr2 = (char *)svptr + offset;
1952 req->size = len;
1953
1954 REQ_SEND;
1955 }
1956}
1957
1958void
1959aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1960 PPCODE:
1961{
1962 dREQ;
1963
1964 req->type = EIO_MLOCKALL;
1965 req->int1 = flags;
1966
1967 REQ_SEND;
1968}
1969
1970void
1971aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1972 PPCODE:
1973{
1974 int fd = s_fileno_croak (fh, 0);
1975 dREQ;
1976
1977 req->type = EIO_CUSTOM;
1978 req->sv1 = newSVsv (fh);
1979 req->int1 = fd;
1980
1981 req->feed = fiemap;
1982#if HAVE_FIEMAP
1983 /* keep our fingers crossed that the next two types are 64 bit */
1984 req->offs = start;
1985 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1986 req->int2 = flags;
1987 req->int3 = SvOK (count) ? SvIV (count) : -1;
1988#endif
1989
1990 REQ_SEND;
1991}
1992
1993void
1994aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1995 PPCODE:
1996{
1997 char *svptr = 0;
1998
1999 sv_clear_foreign (data);
2000
2001 if (length) /* known length, directly read into scalar */
2002 {
2003 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2004 svptr = sv_grow (data, length + 1);
2005 else if (SvCUR (data) < length)
2006 croak ("length outside of scalar, and cannot grow");
2007 else
2008 svptr = SvPVbyte_nolen (data);
2009 }
2010
2011 {
2012 dREQ;
2013
2014 req->type = EIO_SLURP;
2015 req_set_path1 (req, pathname);
2016 req->offs = offset;
2017 req->size = length;
2018 req->sv2 = SvREFCNT_inc (data);
2019 req->ptr2 = svptr;
2020
2021 if (!SvREADONLY (data))
2022 {
2023 SvREADONLY_on (data);
2024 req->flags |= FLAG_SV2_RO_OFF;
2025 }
2026
2027 REQ_SEND;
2028 }
2029}
2030
2031void
2032aio_busy (double delay, SV *callback = &PL_sv_undef)
2033 PPCODE:
2034{
2035 dREQ;
2036
1871 req->type = REQ_BUSY; 2037 req->type = EIO_BUSY;
1872 req->nv1 = delay < 0. ? 0. : delay; 2038 req->nv1 = delay < 0. ? 0. : delay;
1873 2039
1874 REQ_SEND; 2040 REQ_SEND;
1875} 2041}
1876 2042
1877void 2043void
1878aio_group (SV *callback=&PL_sv_undef) 2044aio_group (SV *callback = &PL_sv_undef)
1879 PROTOTYPE: ;$
1880 PPCODE: 2045 PPCODE:
1881{ 2046{
1882 dREQ; 2047 dREQ;
1883 2048
1884 req->type = REQ_GROUP; 2049 req->type = EIO_GROUP;
1885 2050
2051 PUTBACK;
1886 req_send (req); 2052 req_submit (req);
2053 SPAGAIN;
2054
1887 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2055 XPUSHs (req_sv (req, aio_grp_stash));
1888} 2056}
1889 2057
1890void 2058void
1891aio_nop (SV *callback=&PL_sv_undef) 2059aio_nop (SV *callback = &PL_sv_undef)
2060 ALIAS:
2061 aio_nop = EIO_NOP
2062 aio_sync = EIO_SYNC
1892 PPCODE: 2063 PPCODE:
1893{ 2064{
1894 dREQ; 2065 dREQ;
1895 2066
1896 req->type = REQ_NOP; 2067 req->type = ix;
1897 2068
1898 REQ_SEND; 2069 REQ_SEND;
1899} 2070}
1900 2071
1901int 2072int
1902aioreq_pri (int pri = 0) 2073aioreq_pri (int pri = NO_INIT)
1903 PROTOTYPE: ;$
1904 CODE: 2074 CODE:
1905 RETVAL = next_pri - PRI_BIAS; 2075 RETVAL = next_pri;
1906 if (items > 0) 2076 if (items > 0)
1907 { 2077 {
1908 if (pri < PRI_MIN) pri = PRI_MIN; 2078 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1909 if (pri > PRI_MAX) pri = PRI_MAX; 2079 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1910 next_pri = pri + PRI_BIAS; 2080 next_pri = pri;
1911 } 2081 }
1912 OUTPUT: 2082 OUTPUT:
1913 RETVAL 2083 RETVAL
1914 2084
1915void 2085void
1916aioreq_nice (int nice = 0) 2086aioreq_nice (int nice = 0)
1917 CODE: 2087 CODE:
1918 nice = next_pri - nice; 2088 nice = next_pri - nice;
1919 if (nice < PRI_MIN) nice = PRI_MIN; 2089 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1920 if (nice > PRI_MAX) nice = PRI_MAX; 2090 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1921 next_pri = nice + PRI_BIAS; 2091 next_pri = nice;
1922 2092
1923void 2093void
1924flush () 2094flush ()
1925 PROTOTYPE:
1926 CODE: 2095 CODE:
1927 while (nreqs) 2096 while (eio_nreqs ())
1928 { 2097 {
1929 poll_wait (); 2098 poll_wait ();
1930 poll_cb (); 2099 poll_cb ();
1931 } 2100 }
1932 2101
1933int 2102int
1934poll() 2103poll ()
1935 PROTOTYPE:
1936 CODE: 2104 CODE:
1937 poll_wait (); 2105 poll_wait ();
1938 RETVAL = poll_cb (); 2106 RETVAL = poll_cb ();
1939 OUTPUT: 2107 OUTPUT:
1940 RETVAL 2108 RETVAL
1941 2109
1942int 2110int
1943poll_fileno() 2111poll_fileno ()
1944 PROTOTYPE:
1945 CODE: 2112 CODE:
1946 RETVAL = respipe [0]; 2113 RETVAL = s_epipe_fd (&respipe);
1947 OUTPUT: 2114 OUTPUT:
1948 RETVAL 2115 RETVAL
1949 2116
1950int 2117int
1951poll_cb(...) 2118poll_cb (...)
1952 PROTOTYPE: 2119 PROTOTYPE:
1953 CODE: 2120 CODE:
1954 RETVAL = poll_cb (); 2121 RETVAL = poll_cb ();
1955 OUTPUT: 2122 OUTPUT:
1956 RETVAL 2123 RETVAL
1957 2124
1958void 2125void
1959poll_wait() 2126poll_wait ()
1960 PROTOTYPE:
1961 CODE: 2127 CODE:
1962 poll_wait (); 2128 poll_wait ();
1963 2129
1964void
1965setsig (int signum = SIGIO)
1966 PROTOTYPE: ;$
1967 CODE:
1968{
1969 if (block_sig_level)
1970 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1971
1972 X_LOCK (reslock);
1973 main_tid = pthread_self ();
1974 main_sig = signum;
1975 X_UNLOCK (reslock);
1976
1977 if (main_sig && npending)
1978 pthread_kill (main_tid, main_sig);
1979}
1980
1981void
1982aio_block (SV *cb)
1983 PROTOTYPE: &
1984 PPCODE:
1985{
1986 int count;
1987
1988 block_sig ();
1989 PUSHMARK (SP);
1990 PUTBACK;
1991 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1992 SPAGAIN;
1993 unblock_sig ();
1994
1995 if (SvTRUE (ERRSV))
1996 croak (0);
1997
1998 XSRETURN (count);
1999}
2000
2001int 2130int
2002nreqs() 2131nreqs ()
2003 PROTOTYPE:
2004 CODE: 2132 CODE:
2005 RETVAL = nreqs; 2133 RETVAL = eio_nreqs ();
2006 OUTPUT: 2134 OUTPUT:
2007 RETVAL 2135 RETVAL
2008 2136
2009int 2137int
2010nready() 2138nready ()
2011 PROTOTYPE:
2012 CODE: 2139 CODE:
2013 RETVAL = get_nready (); 2140 RETVAL = eio_nready ();
2014 OUTPUT: 2141 OUTPUT:
2015 RETVAL 2142 RETVAL
2016 2143
2017int 2144int
2018npending() 2145npending ()
2019 PROTOTYPE:
2020 CODE: 2146 CODE:
2021 RETVAL = get_npending (); 2147 RETVAL = eio_npending ();
2022 OUTPUT: 2148 OUTPUT:
2023 RETVAL 2149 RETVAL
2024 2150
2025int 2151int
2026nthreads() 2152nthreads ()
2027 PROTOTYPE:
2028 CODE: 2153 CODE:
2029 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2154 RETVAL = eio_nthreads ();
2030 RETVAL = started;
2031 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2032 OUTPUT: 2155 OUTPUT:
2033 RETVAL 2156 RETVAL
2034 2157
2158int
2159fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2160 CODE:
2161 RETVAL = posix_fadvise (fh, offset, length, advice);
2162 OUTPUT:
2163 RETVAL
2164
2165IV
2166sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2167 CODE:
2168 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2169 OUTPUT:
2170 RETVAL
2171
2172void
2173mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2174 PPCODE:
2175 sv_clear_foreign (scalar);
2176{
2177 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2178 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2179 if (addr == (void *)-1)
2180 XSRETURN_NO;
2181
2182 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2183
2184 if (!(prot & PROT_WRITE))
2185 SvREADONLY_on (scalar);
2186
2187 XSRETURN_YES;
2188}
2189
2190void
2191munmap (SV *scalar)
2192 CODE:
2193 sv_clear_foreign (scalar);
2194
2195SV *
2196mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2197 CODE:
2198{
2199 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2200 void *new;
2201
2202 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2203 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2204
2205 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2206
2207 RETVAL = &PL_sv_no;
2208
2209 if (new != (void *)-1)
2210 {
2211 RETVAL = new == (void *)mg->mg_ptr
2212 ? newSVpvn ("0 but true", 10)
2213 : &PL_sv_yes;
2214
2215 mg->mg_ptr = (char *)new;
2216 mg->mg_obj = (SV *)new_length;
2217
2218 SvPVX (scalar) = mg->mg_ptr;
2219 SvCUR_set (scalar, new_length);
2220 }
2221}
2222 OUTPUT:
2223 RETVAL
2224
2225int
2226madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2227 ALIAS:
2228 mprotect = 1
2229 CODE:
2230{
2231 STRLEN svlen;
2232 void *addr = SvPVbyte (scalar, svlen);
2233 STRLEN len = SvUV (length);
2234
2235 if (offset < 0)
2236 offset += svlen;
2237
2238 if (offset < 0 || offset > svlen)
2239 croak ("offset outside of scalar");
2240
2241 if (!SvOK (length) || len + offset > svlen)
2242 len = svlen - offset;
2243
2244 addr = (void *)(((intptr_t)addr) + offset);
2245 eio_page_align (&addr, &len);
2246
2247 switch (ix)
2248 {
2249 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2250 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2251 }
2252}
2253 OUTPUT:
2254 RETVAL
2255
2256int
2257munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2258 CODE:
2259{
2260 STRLEN svlen;
2261 void *addr = SvPVbyte (scalar, svlen);
2262 size_t len = SvUV (length);
2263
2264 if (offset < 0)
2265 offset += svlen;
2266
2267 if (offset < 0 || offset > svlen)
2268 croak ("offset outside of scalar");
2269
2270 if (!SvOK (length) || len + offset > svlen)
2271 len = svlen - offset;
2272
2273 addr = (void *)(((intptr_t)addr) + offset);
2274 eio_page_align (&addr, &len);
2275#if _POSIX_MEMLOCK_RANGE
2276 RETVAL = munlock (addr, len);
2277#else
2278 RETVAL = EIO_ENOSYS ();
2279#endif
2280}
2281 OUTPUT:
2282 RETVAL
2283
2284int
2285mlockall (int flags)
2286 PROTOTYPE: $;
2287 CODE:
2288 RETVAL = eio_mlockall_sync (flags);
2289 OUTPUT:
2290 RETVAL
2291
2292int
2293munlockall ()
2294 CODE:
2295#if _POSIX_MEMLOCK
2296 munlockall ();
2297#else
2298 RETVAL = EIO_ENOSYS ();
2299#endif
2300 OUTPUT:
2301 RETVAL
2302
2303int
2304splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2305 CODE:
2306{
2307#if HAVE_LINUX_SPLICE
2308 loff_t off_in_, off_out_;
2309 RETVAL = splice (
2310 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2311 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2312 length, flags
2313 );
2314#else
2315 RETVAL = EIO_ENOSYS ();
2316#endif
2317}
2318 OUTPUT:
2319 RETVAL
2320
2321int
2322tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2323 CODE:
2324#if HAVE_LINUX_SPLICE
2325 RETVAL = tee (rfh, wfh, length, flags);
2326#else
2327 RETVAL = EIO_ENOSYS ();
2328#endif
2329 OUTPUT:
2330 RETVAL
2331
2332int
2333pipesize (aio_rfd rfh, int new_size = -1)
2334 PROTOTYPE: $;$
2335 CODE:
2336#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2337 if (new_size >= 0)
2338 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2339 else
2340 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2341#else
2342 errno = ENOSYS;
2343 RETVAL = -1;
2344#endif
2345 OUTPUT:
2346 RETVAL
2347
2348void
2349pipe2 (int flags = 0)
2350 PROTOTYPE: ;$
2351 PPCODE:
2352{
2353 int fd[2];
2354 int res;
2355
2356 if (flags)
2357#if HAVE_PIPE2
2358 res = pipe2 (fd, flags);
2359#else
2360 res = (errno = ENOSYS, -1);
2361#endif
2362 else
2363 res = pipe (fd);
2364
2365 if (!res)
2366 {
2367 EXTEND (SP, 2);
2368 PUSHs (newmortalFH (fd[0], O_RDONLY));
2369 PUSHs (newmortalFH (fd[1], O_WRONLY));
2370 }
2371}
2372
2373void
2374eventfd (unsigned int initval = 0, int flags = 0)
2375 PPCODE:
2376{
2377 int fd;
2378#if HAVE_EVENTFD
2379 fd = eventfd (initval, flags);
2380#else
2381 fd = (errno = ENOSYS, -1);
2382#endif
2383
2384 XPUSHs (newmortalFH (fd, O_RDWR));
2385}
2386
2387void
2388timerfd_create (int clockid, int flags = 0)
2389 PPCODE:
2390{
2391 int fd;
2392#if HAVE_TIMERFD
2393 fd = timerfd_create (clockid, flags);
2394#else
2395 fd = (errno = ENOSYS, -1);
2396#endif
2397
2398 XPUSHs (newmortalFH (fd, O_RDWR));
2399}
2400
2401void
2402timerfd_settime (SV *fh, int flags, NV interval, NV value)
2403 PPCODE:
2404{
2405 int fd = s_fileno_croak (fh, 0);
2406#if HAVE_TIMERFD
2407 int res;
2408 struct itimerspec its, ots;
2409
2410 ts_set (&its.it_interval, interval);
2411 ts_set (&its.it_value , value);
2412 res = timerfd_settime (fd, flags, &its, &ots);
2413
2414 if (!res)
2415 {
2416 EXTEND (SP, 2);
2417 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2418 PUSHs (newSVnv (ts_get (&ots.it_value)));
2419 }
2420#else
2421 errno = ENOSYS;
2422#endif
2423}
2424
2425void
2426timerfd_gettime (SV *fh)
2427 PPCODE:
2428{
2429 int fd = s_fileno_croak (fh, 0);
2430#if HAVE_TIMERFD
2431 int res;
2432 struct itimerspec ots;
2433 res = timerfd_gettime (fd, &ots);
2434
2435 if (!res)
2436 {
2437 EXTEND (SP, 2);
2438 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2439 PUSHs (newSVnv (ts_get (&ots.it_value)));
2440 }
2441#else
2442 errno = ENOSYS;
2443#endif
2444}
2445
2446UV
2447get_fdlimit ()
2448 CODE:
2449#if HAVE_RLIMITS
2450 struct rlimit rl;
2451 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2452 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2453#endif
2454 XSRETURN_UNDEF;
2455 OUTPUT:
2456 RETVAL
2457
2458void
2459min_fdlimit (UV limit = 0x7fffffffU)
2460 CODE:
2461{
2462#if HAVE_RLIMITS
2463 struct rlimit rl;
2464 rlim_t orig_rlim_max;
2465 UV bit;
2466
2467 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2468 goto fail;
2469
2470 if (rl.rlim_cur == RLIM_INFINITY)
2471 XSRETURN_YES;
2472
2473 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2474
2475 if (rl.rlim_cur < limit)
2476 {
2477 rl.rlim_cur = limit;
2478
2479 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2480 rl.rlim_max = rl.rlim_cur;
2481 }
2482
2483 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2484 XSRETURN_YES;
2485
2486 if (errno == EPERM)
2487 {
2488 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2489 /* our limit overflows a system-wide limit */
2490 /* try an adaptive algorithm, but do not lower the hardlimit */
2491 rl.rlim_max = 0;
2492 for (bit = 0x40000000U; bit; bit >>= 1)
2493 {
2494 rl.rlim_max |= bit;
2495 rl.rlim_cur = rl.rlim_max;
2496
2497 /* nevr decrease the hard limit */
2498 if (rl.rlim_max < orig_rlim_max)
2499 break;
2500
2501 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2502 rl.rlim_max &= ~bit; /* too high, remove bit again */
2503 }
2504
2505 /* now, raise the soft limit to the max permitted */
2506 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2507 {
2508 rl.rlim_cur = rl.rlim_max;
2509 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2510 errno = EPERM;
2511 }
2512 }
2513#endif
2514 fail:
2515 XSRETURN_UNDEF;
2516}
2517
2518void _on_next_submit (SV *cb)
2519 CODE:
2520 SvREFCNT_dec (on_next_submit);
2521 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2522
2035PROTOTYPES: DISABLE 2523PROTOTYPES: DISABLE
2524
2525MODULE = IO::AIO PACKAGE = IO::AIO::WD
2526
2527BOOT:
2528{
2529 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2530 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2531}
2532
2533void
2534DESTROY (SV *self)
2535 CODE:
2536{
2537 aio_wd wd = SvAIO_WD (self);
2538#if HAVE_AT
2539 {
2540 SV *callback = &PL_sv_undef;
2541 dREQ; /* clobbers next_pri :/ */
2542 next_pri = req->pri; /* restore next_pri */
2543 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2544 req->type = EIO_WD_CLOSE;
2545 req->wd = wd;
2546 REQ_SEND;
2547 }
2548#else
2549 eio_wd_close_sync (wd);
2550#endif
2551}
2036 2552
2037MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2553MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2038 2554
2039void 2555void
2040cancel (aio_req_ornot req) 2556cancel (aio_req_ornot req)
2041 CODE: 2557 CODE:
2042 req_cancel (req); 2558 eio_cancel (req);
2043 2559
2044void 2560void
2045cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2561cb (aio_req_ornot req, SV *callback = NO_INIT)
2046 CODE: 2562 PPCODE:
2563{
2564 if (GIMME_V != G_VOID)
2565 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2566
2567 if (items > 1)
2568 {
2569 SV *cb_cv = get_cb (callback);
2570
2047 SvREFCNT_dec (req->callback); 2571 SvREFCNT_dec (req->callback);
2048 req->callback = newSVsv (callback); 2572 req->callback = SvREFCNT_inc (cb_cv);
2573 }
2574}
2049 2575
2050MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2576MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2051 2577
2052void 2578void
2053add (aio_req grp, ...) 2579add (aio_req grp, ...)
2054 PPCODE: 2580 PPCODE:
2055{ 2581{
2056 int i; 2582 int i;
2057 aio_req req;
2058
2059 if (main_sig && !block_sig_level)
2060 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2061 2583
2062 if (grp->int1 == 2) 2584 if (grp->int1 == 2)
2063 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2585 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2064 2586
2065 for (i = 1; i < items; ++i ) 2587 for (i = 1; i < items; ++i )
2066 { 2588 {
2589 aio_req req;
2590
2067 if (GIMME_V != G_VOID) 2591 if (GIMME_V != G_VOID)
2068 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2592 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2069 2593
2070 req = SvAIO_REQ (ST (i)); 2594 req = SvAIO_REQ (ST (i));
2071 2595
2072 if (req) 2596 if (req)
2073 { 2597 eio_grp_add (grp, req);
2074 ++grp->size;
2075 req->grp = grp;
2076
2077 req->grp_prev = 0;
2078 req->grp_next = grp->grp_first;
2079
2080 if (grp->grp_first)
2081 grp->grp_first->grp_prev = req;
2082
2083 grp->grp_first = req;
2084 }
2085 } 2598 }
2086} 2599}
2087 2600
2088void 2601void
2089cancel_subs (aio_req_ornot req) 2602cancel_subs (aio_req_ornot req)
… …
2098 AV *av; 2611 AV *av;
2099 2612
2100 grp->errorno = errno; 2613 grp->errorno = errno;
2101 2614
2102 av = newAV (); 2615 av = newAV ();
2616 av_extend (av, items - 1);
2103 2617
2104 for (i = 1; i < items; ++i ) 2618 for (i = 1; i < items; ++i )
2105 av_push (av, newSVsv (ST (i))); 2619 av_push (av, newSVsv (ST (i)));
2106 2620
2107 SvREFCNT_dec (grp->sv1); 2621 SvREFCNT_dec (grp->sv1);
… …
2114 grp->errorno = errorno; 2628 grp->errorno = errorno;
2115 2629
2116void 2630void
2117limit (aio_req grp, int limit) 2631limit (aio_req grp, int limit)
2118 CODE: 2632 CODE:
2119 grp->int2 = limit; 2633 eio_grp_limit (grp, limit);
2120 aio_grp_feed (grp);
2121 2634
2122void 2635void
2123feed (aio_req grp, SV *callback=&PL_sv_undef) 2636feed (aio_req grp, SV *callback = &PL_sv_undef)
2124 CODE: 2637 CODE:
2125{ 2638{
2126 SvREFCNT_dec (grp->sv2); 2639 SvREFCNT_dec (grp->sv2);
2127 grp->sv2 = newSVsv (callback); 2640 grp->sv2 = newSVsv (callback);
2641 grp->feed = aio_grp_feed;
2128 2642
2129 if (grp->int2 <= 0) 2643 if (grp->int2 <= 0)
2130 grp->int2 = 2; 2644 grp->int2 = 2;
2131 2645
2132 aio_grp_feed (grp); 2646 eio_grp_limit (grp, grp->int2);
2133} 2647}
2134 2648

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines