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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 2018 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
9#if !defined mg_findext
10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
11#endif
8 12
9#include <stddef.h> 13#include <stddef.h>
10#include <stdlib.h> 14#include <stdlib.h>
11#include <errno.h> 15#include <errno.h>
12#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
13#include <sys/stat.h> 18#include <sys/stat.h>
14#include <limits.h> 19#include <limits.h>
15#include <fcntl.h> 20#include <fcntl.h>
16#include <sched.h> 21#include <sched.h>
17 22
23#if HAVE_SYS_SYSMACROS_H
24# include <sys/sysmacros.h>
25#endif
26
27#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
28# include <sys/mman.h>
29#endif
30
31/* the incompetent fool that created musl keeps __linux__, refuses
32 * to implement any linux standard apis, and also has no way to test
33 * for his broken iplementation. don't complain to me if this fails
34 * for you.
35 */
36#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
37# include <linux/fs.h>
38# ifdef FS_IOC_FIEMAP
39# include <linux/types.h>
40# include <linux/fiemap.h>
41# define HAVE_FIEMAP 1
42# endif
43#endif
44
45/* perl namespace pollution */
46#undef VERSION
47
48/* perl stupidly overrides readdir and maybe others */
49/* with thread-unsafe versions, imagine that :( */
50#undef readdir
51#undef opendir
52#undef closedir
53
18#ifdef _WIN32 54#ifdef _WIN32
19 55
20# define SIGIO 0 56 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 57
22#undef malloc 58 #undef malloc
23#undef free 59 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 60 #undef open
27# undef read 61 #undef read
28# undef write 62 #undef write
29# undef send 63 #undef send
30# undef recv 64 #undef recv
31# undef stat 65 #undef stat
66 #undef lstat
32# undef fstat 67 #undef fstat
33# define lstat stat
34# undef truncate 68 #undef truncate
35# undef ftruncate 69 #undef ftruncate
36# undef open 70 #undef open
71 #undef link
37# undef close 72 #undef close
38# undef unlink 73 #undef unlink
74 #undef mkdir
39# undef rmdir 75 #undef rmdir
40# undef rename 76 #undef rename
41# undef lseek 77 #undef lseek
78 #undef opendir
79 #undef readdir
80 #undef closedir
81 #undef chmod
82 #undef fchmod
83 #undef dup
84 #undef dup2
85 #undef abort
86 #undef pipe
42 87
43# define chown(a,b,c) (errno = ENOSYS, -1) 88 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 89 #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 90
57#else 91#else
58 92
59# include "autoconf/config.h"
60# include <sys/time.h> 93 #include <sys/time.h>
61# include <sys/select.h> 94 #include <sys/select.h>
62# include <unistd.h> 95 #include <unistd.h>
63# include <utime.h> 96 #include <utime.h>
64# include <signal.h> 97 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 98
67#endif 99 #define EIO_STRUCT_STAT Stat_t
68 100
69#if HAVE_SENDFILE 101#endif
70# if __linux 102
103/*****************************************************************************/
104
105#if __GNUC__ >= 3
106# define expect(expr,value) __builtin_expect ((expr),(value))
107#else
108# define expect(expr,value) (expr)
109#endif
110
111#define expect_false(expr) expect ((expr) != 0, 0)
112#define expect_true(expr) expect ((expr) != 0, 1)
113
114/*****************************************************************************/
115
116#include "config.h"
117
118#if HAVE_ST_XTIMENSEC
119# define ATIMENSEC PL_statcache.st_atimensec
120# define MTIMENSEC PL_statcache.st_mtimensec
121# define CTIMENSEC PL_statcache.st_ctimensec
122#elif HAVE_ST_XTIMESPEC
123# define ATIMENSEC PL_statcache.st_atim.tv_nsec
124# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
125# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
126#else
127# define ATIMENSEC 0
128# define MTIMENSEC 0
129# define CTIMENSEC 0
130#endif
131
132#include "schmorp.h"
133
134#if HAVE_EVENTFD
71# include <sys/sendfile.h> 135# include <sys/eventfd.h>
72# elif __freebsd 136#endif
73# include <sys/socket.h> 137
138#if HAVE_TIMERFD
74# include <sys/uio.h> 139# include <sys/timerfd.h>
75# elif __hpux 140#endif
141
142#if HAVE_RLIMITS
143 #include <sys/time.h>
76# include <sys/socket.h> 144 #include <sys/resource.h>
77# elif __solaris /* not yet */ 145#endif
78# include <sys/sendfile.h> 146
147typedef SV SV8; /* byte-sv, used for argument-checking */
148typedef int aio_rfd; /* read file desriptor */
149typedef int aio_wfd; /* write file descriptor */
150
151static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
152
153#define EIO_REQ_MEMBERS \
154 SV *callback; \
155 SV *sv1, *sv2; \
156 SV *sv3, *sv4; \
157 STRLEN stroffset; \
158 SV *self;
159
160#define EIO_NO_WRAPPERS 1
161
162#include "libeio/eio.h"
163
164static int req_invoke (eio_req *req);
165#define EIO_FINISH(req) req_invoke (req)
166static void req_destroy (eio_req *grp);
167#define EIO_DESTROY(req) req_destroy (req)
168
169#include "libeio/eio.c"
170
171#if !HAVE_POSIX_FADVISE
172# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
173#endif
174
175#if !HAVE_POSIX_MADVISE
176# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
177#endif
178
179#ifndef MAP_ANONYMOUS
180# ifdef MAP_ANON
181# define MAP_ANONYMOUS MAP_ANON
79# else 182# else
80# error sendfile support requested but not available 183# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 184# endif
82#endif 185#endif
83 186
84/* number of seconds after which idle threads exit */ 187#ifndef makedev
85#define IDLE_TIMEOUT 10 188# 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 189#endif
91 190#ifndef major
92/* buffer size for various temporary buffers */ 191# 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 192#endif
193#ifndef minor
194# define minor(dev) ((dev) & 0xff)
195#endif
101 196
102#define dBUF \ 197#if PAGESIZE <= 0
103 char *aio_buf; \ 198# define PAGESIZE sysconf (_SC_PAGESIZE)
104 X_LOCK (wrklock); \ 199#endif
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 200
106 X_UNLOCK (wrklock); \ 201/*****************************************************************************/
107 if (!aio_buf) \ 202
203#if !_POSIX_MAPPED_FILES
204# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
205# define munmap(addr,length) EIO_ENOSYS ()
206#endif
207
208#if !_POSIX_MEMORY_PROTECTION
209# define mprotect(addr,len,prot) EIO_ENOSYS ()
210#endif
211
212#if !MREMAP_MAYMOVE
213# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
214#endif
215
216#define FOREIGN_MAGIC PERL_MAGIC_ext
217
218static int ecb_cold
219mmap_free (pTHX_ SV *sv, MAGIC *mg)
220{
221 int old_errno = errno;
222 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
223 errno = old_errno;
224
225 mg->mg_obj = 0; /* just in case */
226
227 SvREADONLY_off (sv);
228
229 if (SvPVX (sv) != mg->mg_ptr)
230 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
231
232 SvCUR_set (sv, 0);
233 SvPVX (sv) = 0;
234 SvOK_off (sv);
235
108 return -1; 236 return 0;
237}
109 238
110typedef SV SV8; /* byte-sv, used for argument-checking */ 239static MGVTBL mmap_vtbl = {
111 240 0, 0, 0, 0, mmap_free
112enum {
113 REQ_QUIT,
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128}; 241};
129 242
130#define AIO_REQ_KLASS "IO::AIO::REQ" 243static int ecb_cold
131#define AIO_GRP_KLASS "IO::AIO::GRP" 244sysfree_free (pTHX_ SV *sv, MAGIC *mg)
132
133typedef struct aio_cb
134{ 245{
135 struct aio_cb *volatile next; 246 free (mg->mg_ptr);
247 mg->mg_obj = 0; /* just in case */
136 248
137 SV *callback; 249 SvREADONLY_off (sv);
138 SV *sv1, *sv2;
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144 250
145 STRLEN stroffset; 251 if (SvPVX (sv) != mg->mg_ptr)
146 int type; 252 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 253
151 unsigned char flags; 254 SvCUR_set (sv, 0);
152 unsigned char pri; 255 SvPVX (sv) = 0;
256 SvOK_off (sv);
153 257
154 SV *self; /* the perl counterpart of this request, if any */ 258 return 0;
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 259}
156} aio_cb;
157 260
158enum { 261static MGVTBL sysfree_vtbl = {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */ 262 0, 0, 0, 0, sysfree_free
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162}; 263};
163 264
164typedef aio_cb *aio_req; 265/*****************************************************************************/
165typedef aio_cb *aio_req_ornot;
166 266
167enum { 267/* helper: set scalar to foreign ptr with custom free */
168 PRI_MIN = -4, 268static void
169 PRI_MAX = 4, 269sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
170
171 DEFAULT_PRI = 0,
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{ 270{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 271 sv_force_normal (sv);
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187 272
188static thread_t main_tid; 273 /* we store the length in mg_obj, as namlen is I32 :/ */
189static int main_sig; 274 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
190static int block_sig_level; 275 ->mg_obj = (SV *)length;
191 276
192void block_sig () 277 SvUPGRADE (sv, SVt_PV); /* nop... */
193{
194 sigset_t ss;
195 278
196 if (block_sig_level++) 279 if (SvLEN (sv))
280 Safefree (SvPVX (sv));
281
282 SvPVX (sv) = (char *)addr;
283 SvCUR_set (sv, length);
284 SvLEN_set (sv, 0);
285 SvPOK_only (sv);
286}
287
288static void
289sv_clear_foreign (SV *sv)
290{
291 /* todo: iterate over magic and only free ours, but of course */
292 /* the perl5porters will call that (correct) behaviour buggy */
293 sv_unmagic (sv, FOREIGN_MAGIC);
294}
295
296/*****************************************************************************/
297
298/* defines all sorts of constants to 0 unless they are already defined */
299/* also provides const_iv_ and const_niv_ macros for them */
300#include "def0.h"
301
302/*****************************************************************************/
303
304static void
305fiemap (eio_req *req)
306{
307 req->result = -1;
308
309#if HAVE_FIEMAP
310 /* assume some c99 */
311 struct fiemap *fiemap = 0;
312 size_t end_offset;
313 int count = req->int3;
314
315 req->flags |= EIO_FLAG_PTR1_FREE;
316
317 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
318 /* increase in 3.5kb steps */
319 if (count < 0)
320 count = 8;
321
322 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
323 errno = ENOMEM;
324 if (!fiemap)
197 return; 325 return;
198 326
199 if (!main_sig) 327 req->ptr1 = fiemap;
328
329 fiemap->fm_start = req->offs;
330 fiemap->fm_length = req->size;
331 fiemap->fm_flags = req->int2;
332 fiemap->fm_extent_count = count;
333
334 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 335 return;
201 336
202 sigemptyset (&ss); 337 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 338 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 339 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 340 goto done;
206 341
207void unblock_sig () 342 /* else we have to loop -
208{ 343 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 344 * number of extents needed, but linux often feels like not returning all
345 * extents, without telling us it left any out. this complicates
346 * this quite a bit.
347 */
210 348
211 if (--block_sig_level) 349 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 350
214 if (!main_sig) 351 for (;;)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 { 352 {
247 closedir (wrk->dirp); 353 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
248 wrk->dirp = 0; 354 char scratch[3072];
249 } 355 struct fiemap *incmap = (struct fiemap *)scratch;
250 356
251 if (wrk->dbuf) 357 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 358 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 359 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 360 incmap->fm_flags = fiemap->fm_flags;
255 } 361 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 362
258static void worker_free (worker *wrk) 363 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0; 364 return;
353 365
354 --q->size; 366 if (!incmap->fm_mapped_extents)
367 goto done;
355 368
356 for (pri = NUM_PRI; pri--; ) 369 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 370 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 371 errno = ENOMEM;
359
360 if (req) 372 if (!fiemap)
373 return;
374
375 req->ptr1 = fiemap;
376
377 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 378 {
362 if (!(q->qs[pri] = req->next)) 379 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 380
365 return req; 381 if (e->fe_logical + e->fe_length >= end_offset)
382 goto done;
383
384 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
385
386 if (e->fe_flags & FIEMAP_EXTENT_LAST)
387 goto done;
388
366 } 389 }
367 } 390 }
368 391
369 abort (); 392done:
370} 393 req->result = 0;
371 394
372static int poll_cb (); 395#else
373static int req_invoke (aio_req req); 396 errno = ENOSYS;
397#endif
398}
399
400/*****************************************************************************/
401
402enum {
403 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
404};
405
406typedef eio_req *aio_req;
407typedef eio_req *aio_req_ornot;
408typedef eio_wd aio_wd;
409
410static SV *on_next_submit;
411static int next_pri = EIO_PRI_DEFAULT;
412static int max_outstanding;
413
414static s_epipe respipe;
415
374static void req_destroy (aio_req req); 416static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 417static void req_cancel (aio_req req);
376 418
419static void
420want_poll (void)
421{
422 /* write a dummy byte to the pipe so fh becomes ready */
423 s_epipe_signal (&respipe);
424}
425
426static void
427done_poll (void)
428{
429 /* read any signals sent by the worker threads */
430 s_epipe_drain (&respipe);
431}
432
377/* must be called at most once */ 433/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 434static SV *
435req_sv (aio_req req, HV *stash)
379{ 436{
380 if (!req->self) 437 if (!req->self)
381 { 438 {
382 req->self = (SV *)newHV (); 439 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 440 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 441 }
385 442
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 443 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 444}
388 445
389static aio_req SvAIO_REQ (SV *sv) 446static SV *
447newSVaio_wd (aio_wd wd)
448{
449 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
450}
451
452static aio_req
453SvAIO_REQ (SV *sv)
390{ 454{
391 MAGIC *mg; 455 MAGIC *mg;
392 456
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 457 if (!SvROK (sv)
458 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
459 || (SvSTASH (SvRV (sv)) != aio_grp_stash
460 && SvSTASH (SvRV (sv)) != aio_req_stash
461 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 462 croak ("object of class IO::AIO::REQ expected");
395 463
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 464 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 465
398 return mg ? (aio_req)mg->mg_ptr : 0; 466 return mg ? (aio_req)mg->mg_ptr : 0;
399} 467}
400 468
469static aio_wd
470SvAIO_WD (SV *sv)
471{
472 if (!SvROK (sv)
473 || SvTYPE (SvRV (sv)) != SVt_PVMG
474 || SvSTASH (SvRV (sv)) != aio_wd_stash)
475 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
476
477 return (aio_wd)(long)SvIVX (SvRV (sv));
478}
479
480static SV *
481newmortalFH (int fd, int flags)
482{
483 if (fd < 0)
484 return &PL_sv_undef;
485
486 GV *gv = (GV *)sv_newmortal ();
487 char sym[64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
491 gv_init (gv, aio_stash, sym, symlen, 0);
492
493 symlen = snprintf (
494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 fd
499 );
500
501 return do_open (gv, sym, symlen, 0, 0, 0, 0)
502 ? (SV *)gv : &PL_sv_undef;
503}
504
505static void
401static void aio_grp_feed (aio_req grp) 506aio_grp_feed (aio_req grp)
402{ 507{
403 block_sig (); 508 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 509 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 510 dSP;
412 511
413 ENTER; 512 ENTER;
414 SAVETMPS; 513 SAVETMPS;
415 PUSHMARK (SP); 514 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 515 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 516 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 517 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 518 SPAGAIN;
420 FREETMPS; 519 FREETMPS;
421 LEAVE; 520 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 521 }
432
433 unblock_sig ();
434} 522}
435 523
436static void aio_grp_dec (aio_req grp) 524static void
525req_submit (eio_req *req)
437{ 526{
438 --grp->size; 527 eio_submit (req);
439 528
440 /* call feeder, if applicable */ 529 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 530 {
446 block_sig (); 531 dSP;
532 SV *cb = sv_2mortal (on_next_submit);
447 533
448 if (!req_invoke (grp)) 534 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 535
455 req_destroy (grp); 536 PUSHMARK (SP);
456 unblock_sig (); 537 PUTBACK;
538 call_sv (cb, G_DISCARD | G_EVAL);
457 } 539 }
458} 540}
459 541
542static int
460static int req_invoke (aio_req req) 543req_invoke (eio_req *req)
461{ 544{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 545 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 546 SvREADONLY_off (req->sv2);
466 547
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 548 if (!EIO_CANCELLED (req) && req->callback)
468 { 549 {
550 dSP;
551 static SV *sv_result_cache; /* caches the result integer SV */
552 SV *sv_result;
553
469 ENTER; 554 ENTER;
470 SAVETMPS; 555 SAVETMPS;
471 PUSHMARK (SP); 556 PUSHMARK (SP);
472 EXTEND (SP, 1); 557 EXTEND (SP, 1);
473 558
559 /* do not recreate the result IV from scratch each time */
560 if (expect_true (sv_result_cache))
561 {
562 sv_result = sv_result_cache; sv_result_cache = 0;
563 SvIV_set (sv_result, req->result);
564 SvIOK_only (sv_result);
565 }
566 else
567 {
568 sv_result = newSViv (req->result);
569 SvREADONLY_on (sv_result);
570 }
571
474 switch (req->type) 572 switch (req->type)
475 { 573 {
574 case EIO_WD_OPEN:
575 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
576 break;
577
476 case REQ_READDIR: 578 case EIO_READDIR:
477 { 579 {
478 SV *rv = &PL_sv_undef; 580 SV *rv = &PL_sv_undef;
479 581
480 if (req->result >= 0) 582 if (req->result >= 0)
481 { 583 {
482 int i; 584 int i;
483 char *buf = req->ptr2; 585 char *names = (char *)req->ptr2;
586 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 587 AV *av = newAV ();
485 588
486 av_extend (av, req->result - 1); 589 av_extend (av, req->result - 1);
487 590
488 for (i = 0; i < req->result; ++i) 591 for (i = 0; i < req->result; ++i)
489 { 592 {
490 SV *sv = newSVpv (buf, 0); 593 if (req->int1 & EIO_READDIR_DENTS)
594 {
595 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 596
597 if (req->int1 & EIO_READDIR_CUSTOM2)
598 {
599 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
600 AV *avent = newAV ();
601
602 av_extend (avent, 2);
603
604 if (!sv_type [ent->type])
605 {
606 sv_type [ent->type] = newSViv (ent->type);
607 SvREADONLY_on (sv_type [ent->type]);
608 }
609
610 av_store (avent, 0, namesv);
611 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
612 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
613
614 av_store (av, i, newRV_noinc ((SV *)avent));
615 }
616 else
492 av_store (av, i, sv); 617 av_store (av, i, namesv);
618
619 ++ent;
620 }
621 else
622 {
623 SV *name = newSVpv (names, 0);
624 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 625 names += SvCUR (name) + 1;
626 }
494 } 627 }
495 628
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 629 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 630 }
498 631
499 PUSHs (rv); 632 PUSHs (rv);
633
634 if (req->int1 & EIO_READDIR_CUSTOM1)
635 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 636 }
501 break; 637 break;
502 638
503 case REQ_OPEN: 639 case EIO_OPEN:
640 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
641 break;
642
643 case EIO_STATVFS:
644 case EIO_FSTATVFS:
504 { 645 {
505 /* convert fd to fh */ 646 SV *rv = &PL_sv_undef;
506 SV *fh; 647
648#ifndef _WIN32
649 if (req->result >= 0)
650 {
651 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
652 HV *hv = newHV ();
653 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
654 * chooses to make it a struct.
655 */
656 unsigned long fsid = 0;
657 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
507 658
508 PUSHs (sv_2mortal (newSViv (req->result))); 659 rv = sv_2mortal (newRV_noinc ((SV *)hv));
509 PUTBACK;
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
511 SPAGAIN;
512 660
513 fh = POPs; 661 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
514 PUSHMARK (SP); 662 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
663 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
664 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
665 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
666 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
667 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
668 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
669 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
670 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
671 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
672 }
673#endif
674
515 XPUSHs (fh); 675 PUSHs (rv);
516 } 676 }
677
517 break; 678 break;
518 679
519 case REQ_GROUP: 680 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 681 req->int1 = 2; /* mark group as finished */
521 682
522 if (req->sv1) 683 if (req->sv1)
523 { 684 {
524 int i; 685 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 689 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 690 PUSHs (*av_fetch (av, i, 0));
530 } 691 }
531 break; 692 break;
532 693
533 case REQ_NOP: 694 case EIO_NOP:
534 case REQ_BUSY: 695 case EIO_BUSY:
535 break; 696 break;
536 697
537 case REQ_READLINK: 698 case EIO_READLINK:
699 case EIO_REALPATH:
538 if (req->result > 0) 700 if (req->result > 0)
701 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
702 break;
703
704 case EIO_STAT:
705 case EIO_LSTAT:
706 case EIO_FSTAT:
707 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
708
709 if (!(PL_laststatval = req->result))
710 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
711 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
712
713 PUSHs (sv_result);
714 break;
715
716 case EIO_SEEK:
717 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
718 break;
719
720 case EIO_READ:
721 {
722 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
723 *SvEND (req->sv2) = 0;
724 SvPOK_only (req->sv2);
725 SvSETMAGIC (req->sv2);
726 PUSHs (sv_result);
727 }
728 break;
729
730 case EIO_SLURP:
731 {
732 if (req->result >= 0)
733 {
734 /* if length was originally not known, we steal the malloc'ed memory */
735 if (req->flags & EIO_FLAG_PTR2_FREE)
736 {
737 req->flags &= ~EIO_FLAG_PTR2_FREE;
738 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
739 }
740 else
741 {
742 SvCUR_set (req->sv2, req->result);
743 *SvEND (req->sv2) = 0;
744 SvPOK_only (req->sv2);
745 }
746
747 SvSETMAGIC (req->sv2);
748 }
749
750 PUSHs (sv_result);
751 }
752 break;
753
754 case EIO_CUSTOM:
755 if (req->feed == fiemap)
539 { 756 {
540 SvCUR_set (req->sv2, req->result); 757#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 758 if (!req->result)
759 {
760 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
761
762 if (fiemap->fm_extent_count)
763 {
764 AV *av = newAV ();
765 int i;
766
767 while (fiemap->fm_mapped_extents)
768 {
769 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
770 AV *ext_av = newAV ();
771
772 av_store (ext_av, 3, newSVuv (extent->fe_flags));
773 av_store (ext_av, 2, newSVval64 (extent->fe_length));
774 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
775 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
776
777 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
778 }
779
780 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
781 }
782 else
783 {
784 SvIV_set (sv_result, fiemap->fm_mapped_extents);
785 PUSHs (sv_result);
786 }
787 }
788#endif
543 } 789 }
790 else
791 PUSHs (sv_result);
544 break; 792 break;
545 793
546 case REQ_STAT: 794 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 795 if (req->result > 0)
548 case REQ_FSTAT: 796 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 797 /* FALLTHROUGH */
550 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result)));
553 break;
554
555 case REQ_READ:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result)));
559 break;
560 798
561 default: 799 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 800 PUSHs (sv_result);
563 break; 801 break;
564 } 802 }
565 803
566 errno = req->errorno; 804 errno = req->errorno;
567 805
568 PUTBACK; 806 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 807 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 808 SPAGAIN;
809
810 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
811 SvREFCNT_dec (sv_result);
812 else
813 sv_result_cache = sv_result;
571 814
572 FREETMPS; 815 FREETMPS;
573 LEAVE; 816 LEAVE;
817
818 PUTBACK;
574 } 819 }
575 820
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 821 return !!SvTRUE (ERRSV);
591} 822}
592 823
824static void
593static void req_destroy (aio_req req) 825req_destroy (aio_req req)
594{ 826{
595 if (req->self) 827 if (req->self)
596 { 828 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 829 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 830 SvREFCNT_dec (req->self);
599 } 831 }
600 832
601 SvREFCNT_dec (req->sv1); 833 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 834 SvREFCNT_dec (req->sv2);
835 SvREFCNT_dec (req->sv3);
836 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 837 SvREFCNT_dec (req->callback);
604 838
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 839 free (req);
609} 840}
610 841
842static void
611static void req_cancel_subs (aio_req grp) 843req_cancel_subs (aio_req grp)
612{ 844{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 845 if (grp->type != EIO_GROUP)
616 return; 846 return;
617 847
618 SvREFCNT_dec (grp->sv2); 848 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 849 grp->sv2 = 0;
620 850
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 851 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 852}
624 853
625static void req_cancel (aio_req req) 854static void ecb_cold
855create_respipe (void)
626{ 856{
627 req->flags |= FLAG_CANCELLED; 857 if (s_epipe_renew (&respipe))
628 858 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 859}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637 860
638static void 861static void
639create_pipe (int fd[2]) 862poll_wait (void)
640{ 863{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655}
656
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 864 while (eio_nreqs ())
757 { 865 {
758 int size; 866 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 867
868 X_LOCK (EIO_POOL->reslock);
760 size = res_queue.size; 869 size = EIO_POOL->res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 870 X_UNLOCK (EIO_POOL->reslock);
762 871
763 if (size) 872 if (size)
764 return; 873 return;
765 874
766 maybe_start_thread (); 875 etp_maybe_start_thread (EIO_POOL);
767 876
768 FD_ZERO (&rfd); 877 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 878 }
773} 879}
774 880
775static int poll_cb () 881static int
882poll_cb (void)
776{ 883{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 884 for (;;)
790 { 885 {
791 for (;;) 886 int res = eio_poll ();
887
888 if (res > 0)
889 croak (0);
890
891 if (!max_outstanding || max_outstanding > eio_nreqs ())
892 return res;
893
894 poll_wait ();
895 }
896}
897
898static void ecb_cold
899reinit (void)
900{
901 create_respipe ();
902
903 if (eio_init (want_poll, done_poll) < 0)
904 croak ("IO::AIO: unable to initialise eio library");
905}
906
907/*****************************************************************************/
908
909static SV *
910get_cb (SV *cb_sv)
911{
912 SvGETMAGIC (cb_sv);
913 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
914}
915
916static aio_req ecb_noinline
917dreq (SV *callback)
918{
919 SV *cb_cv;
920 aio_req req;
921 int req_pri = next_pri;
922 next_pri = EIO_PRI_DEFAULT;
923
924 cb_cv = get_cb (callback);
925
926 req = calloc (sizeof (*req), 1);
927 if (!req)
928 croak ("out of memory during eio_req allocation");
929
930 req->callback = SvREFCNT_inc (cb_cv);
931 req->pri = req_pri;
932
933 return req;
934}
935
936#define dREQ \
937 aio_req req = dreq (callback); \
938
939#define REQ_SEND \
940 PUTBACK; \
941 req_submit (req); \
942 SPAGAIN; \
943 \
944 if (GIMME_V != G_VOID) \
945 XPUSHs (req_sv (req, aio_req_stash));
946
947ecb_inline void
948req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
949{
950 if (expect_false (SvROK (path)))
951 {
952 SV *rv = SvRV (path);
953 SV *wdob;
954
955 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 956 {
793 maybe_start_thread (); 957 path = AvARRAY (rv)[1];
958 wdob = AvARRAY (rv)[0];
794 959
795 X_LOCK (reslock); 960 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 961 {
800 --npending; 962 *wd = SvAIO_WD (wdob);
801 963 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 } 964 }
823 else 965 else
824 { 966 *wd = EIO_INVALID_WD;
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0);
830 }
831
832 count++;
833 }
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 } 967 }
968 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
969 {
970 *wd = (aio_wd)(long)SvIVX (rv);
971 *wdsv = SvREFCNT_inc_NN (rv);
972 *ptr = ".";
973 return; /* path set to "." */
974 }
975 else
976 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
977 }
848 978
849 if (nreqs <= max_outstanding) 979 *pathsv = newSVsv (path);
980 *ptr = SvPVbyte_nolen (*pathsv);
981}
982
983static void ecb_noinline
984req_set_path1 (aio_req req, SV *path)
985{
986 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
987}
988
989static void ecb_noinline
990req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
991{
992 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
993
994 switch (SvTYPE (rv))
995 {
996 case SVt_PVIO:
997 case SVt_PVLV:
998 case SVt_PVGV:
999 req->type = type_fh;
1000 req->sv1 = newSVsv (fh_or_path);
1001 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 1002 break;
851 1003
852 poll_wait (); 1004 default:
853 1005 req->type = type_path;
854 ++maxreqs; 1006 req_set_path1 (req, fh_or_path);
1007 break;
855 } 1008 }
856
857 unblock_sig ();
858 return count;
859} 1009}
860 1010
861/*****************************************************************************/ 1011/*****************************************************************************/
862/* work around various missing functions */
863 1012
864#if !HAVE_PREADWRITE 1013static void
865# define pread aio_pread 1014ts_set (struct timespec *ts, NV value)
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{ 1015{
877 ssize_t res; 1016 ts->tv_sec = value;
878 off_t ooffset; 1017 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888} 1018}
889 1019
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1020static NV
1021ts_get (const struct timespec *ts)
891{ 1022{
892 ssize_t res; 1023 return ts->tv_sec + ts->tv_nsec * 1e-9;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082}
1083
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143} 1024}
1144 1025
1145/*****************************************************************************/ 1026/*****************************************************************************/
1146 1027
1147X_THREAD_PROC (aio_proc) 1028XS(boot_IO__AIO) ecb_cold;
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153 1029
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 PerlSock_closesocket (respipe [0]);
1376 PerlSock_closesocket (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381}
1382
1383#define dREQ \
1384 aio_req req; \
1385 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \
1387 \
1388 if (SvOK (callback) && !SvROK (callback)) \
1389 croak ("callback must be undef or of reference type"); \
1390 \
1391 Newz (0, req, 1, aio_cb); \
1392 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \
1394 \
1395 req->callback = newSVsv (callback); \
1396 req->pri = req_pri
1397
1398#define REQ_SEND \
1399 req_send (req); \
1400 \
1401 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403
1404MODULE = IO::AIO PACKAGE = IO::AIO 1030MODULE = IO::AIO PACKAGE = IO::AIO
1405 1031
1406PROTOTYPES: ENABLE 1032PROTOTYPES: ENABLE
1407 1033
1408BOOT: 1034BOOT:
1409{ 1035{
1036 static const struct {
1037 const char *name;
1038 IV iv;
1039 } *civ, const_iv[] = {
1040# define const_niv(name, value) { # name, (IV) value },
1041# define const_iv(name) { # name, (IV) name },
1042# define const_eio(name) { # name, (IV) EIO_ ## name },
1043
1044 /* you have to re-run ./gendef0 after adding/removing any constants here */
1045 /* the first block can be undef if missing */
1046 const_iv (ENOSYS)
1047 const_iv (EXDEV)
1048 const_iv (EBADR)
1049
1050 /* for lseek */
1051 const_iv (SEEK_DATA)
1052 const_iv (SEEK_HOLE)
1053
1054 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1055 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1056 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1057 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1058 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1059 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1060
1061 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1062 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1063 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1064 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1065 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1066
1067 /* the second block will be 0 when missing */
1068 const_iv (O_ACCMODE)
1069
1070 const_iv (O_RDONLY)
1071 const_iv (O_WRONLY)
1072 const_iv (O_RDWR)
1073 const_iv (O_CREAT)
1074 const_iv (O_TRUNC)
1075 const_iv (O_EXCL)
1076 const_iv (O_APPEND)
1077
1078 const_iv (O_ASYNC)
1079 const_iv (O_DIRECT)
1080 const_iv (O_NOATIME)
1081
1082 const_iv (O_CLOEXEC)
1083 const_iv (O_NOCTTY)
1084 const_iv (O_NOFOLLOW)
1085 const_iv (O_NONBLOCK)
1086 const_iv (O_EXEC)
1087 const_iv (O_SEARCH)
1088 const_iv (O_DIRECTORY)
1089 const_iv (O_DSYNC)
1090 const_iv (O_RSYNC)
1091 const_iv (O_SYNC)
1092 const_iv (O_PATH)
1093 const_iv (O_TMPFILE)
1094 const_iv (O_TTY_INIT)
1095
1096 const_iv (S_IFIFO)
1097 const_iv (S_IFCHR)
1098 const_iv (S_IFBLK)
1099 const_iv (S_IFLNK)
1100 const_iv (S_IFREG)
1101 const_iv (S_IFDIR)
1102 const_iv (S_IFWHT)
1103 const_iv (S_IFSOCK)
1104 const_iv (S_IFMT)
1105
1106 const_iv (ST_RDONLY)
1107 const_iv (ST_NOSUID)
1108 const_iv (ST_NODEV)
1109 const_iv (ST_NOEXEC)
1110 const_iv (ST_SYNCHRONOUS)
1111 const_iv (ST_MANDLOCK)
1112 const_iv (ST_WRITE)
1113 const_iv (ST_APPEND)
1114 const_iv (ST_IMMUTABLE)
1115 const_iv (ST_NOATIME)
1116 const_iv (ST_NODIRATIME)
1117 const_iv (ST_RELATIME)
1118
1119 const_iv (PROT_NONE)
1120 const_iv (PROT_EXEC)
1121 const_iv (PROT_READ)
1122 const_iv (PROT_WRITE)
1123
1124 const_iv (MAP_PRIVATE)
1125 const_iv (MAP_SHARED)
1126 const_iv (MAP_FIXED)
1127 const_iv (MAP_ANONYMOUS)
1128
1129 /* linuxish */
1130 const_iv (MAP_LOCKED)
1131 const_iv (MAP_NORESERVE)
1132 const_iv (MAP_POPULATE)
1133 const_iv (MAP_NONBLOCK)
1134 const_iv (MAP_GROWSDOWN)
1135 const_iv (MAP_32BIT)
1136 const_iv (MAP_HUGETLB)
1137 const_iv (MAP_STACK)
1138
1139 const_iv (MREMAP_MAYMOVE)
1140 const_iv (MREMAP_FIXED)
1141
1142 const_iv (F_DUPFD_CLOEXEC)
1143
1144 const_iv (MSG_CMSG_CLOEXEC)
1145 const_iv (SOCK_CLOEXEC)
1146
1147 const_iv (F_OFD_GETLK)
1148 const_iv (F_OFD_SETLK)
1149 const_iv (F_OFD_GETLKW)
1150
1151 const_iv (FIFREEZE)
1152 const_iv (FITHAW)
1153 const_iv (FITRIM)
1154 const_iv (FICLONE)
1155 const_iv (FICLONERANGE)
1156 const_iv (FIDEDUPERANGE)
1157
1158 const_iv (FS_IOC_GETFLAGS)
1159 const_iv (FS_IOC_SETFLAGS)
1160 const_iv (FS_IOC_GETVERSION)
1161 const_iv (FS_IOC_SETVERSION)
1162 const_iv (FS_IOC_FIEMAP)
1163 const_iv (FS_IOC_FSGETXATTR)
1164 const_iv (FS_IOC_FSSETXATTR)
1165 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1166 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1167 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1168
1169 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1170
1171 const_iv (FS_SECRM_FL)
1172 const_iv (FS_UNRM_FL)
1173 const_iv (FS_COMPR_FL)
1174 const_iv (FS_SYNC_FL)
1175 const_iv (FS_IMMUTABLE_FL)
1176 const_iv (FS_APPEND_FL)
1177 const_iv (FS_NODUMP_FL)
1178 const_iv (FS_NOATIME_FL)
1179 const_iv (FS_DIRTY_FL)
1180 const_iv (FS_COMPRBLK_FL)
1181 const_iv (FS_NOCOMP_FL)
1182 const_iv (FS_ENCRYPT_FL)
1183 const_iv (FS_BTREE_FL)
1184 const_iv (FS_INDEX_FL)
1185 const_iv (FS_JOURNAL_DATA_FL)
1186 const_iv (FS_NOTAIL_FL)
1187 const_iv (FS_DIRSYNC_FL)
1188 const_iv (FS_TOPDIR_FL)
1189 const_iv (FS_FL_USER_MODIFIABLE)
1190
1191 const_iv (FS_XFLAG_REALTIME)
1192 const_iv (FS_XFLAG_PREALLOC)
1193 const_iv (FS_XFLAG_IMMUTABLE)
1194 const_iv (FS_XFLAG_APPEND)
1195 const_iv (FS_XFLAG_SYNC)
1196 const_iv (FS_XFLAG_NOATIME)
1197 const_iv (FS_XFLAG_NODUMP)
1198 const_iv (FS_XFLAG_RTINHERIT)
1199 const_iv (FS_XFLAG_PROJINHERIT)
1200 const_iv (FS_XFLAG_NOSYMLINKS)
1201 const_iv (FS_XFLAG_EXTSIZE)
1202 const_iv (FS_XFLAG_EXTSZINHERIT)
1203 const_iv (FS_XFLAG_NODEFRAG)
1204 const_iv (FS_XFLAG_FILESTREAM)
1205 const_iv (FS_XFLAG_DAX)
1206 const_iv (FS_XFLAG_HASATTR)
1207
1208 const_iv (FIEMAP_FLAG_SYNC)
1209 const_iv (FIEMAP_FLAG_XATTR)
1210 const_iv (FIEMAP_FLAGS_COMPAT)
1211 const_iv (FIEMAP_EXTENT_LAST)
1212 const_iv (FIEMAP_EXTENT_UNKNOWN)
1213 const_iv (FIEMAP_EXTENT_DELALLOC)
1214 const_iv (FIEMAP_EXTENT_ENCODED)
1215 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1216 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1217 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1218 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1219 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1220 const_iv (FIEMAP_EXTENT_MERGED)
1221 const_iv (FIEMAP_EXTENT_SHARED)
1222
1223 const_iv (SPLICE_F_MOVE)
1224 const_iv (SPLICE_F_NONBLOCK)
1225 const_iv (SPLICE_F_MORE)
1226 const_iv (SPLICE_F_GIFT)
1227
1228 const_iv (EFD_CLOEXEC)
1229 const_iv (EFD_NONBLOCK)
1230 const_iv (EFD_SEMAPHORE)
1231
1232 const_iv (CLOCK_REALTIME)
1233 const_iv (CLOCK_MONOTONIC)
1234 const_iv (CLOCK_BOOTTIME)
1235 const_iv (CLOCK_REALTIME_ALARM)
1236 const_iv (CLOCK_BOOTTIME_ALARM)
1237
1238 const_iv (TFD_NONBLOCK)
1239 const_iv (TFD_CLOEXEC)
1240
1241 const_iv (TFD_TIMER_ABSTIME)
1242 const_iv (TFD_TIMER_CANCEL_ON_SET)
1243
1244 /* these are libeio constants, and are independent of gendef0 */
1245 const_eio (SEEK_SET)
1246 const_eio (SEEK_CUR)
1247 const_eio (SEEK_END)
1248
1249 const_eio (MCL_FUTURE)
1250 const_eio (MCL_CURRENT)
1251
1252 const_eio (MS_ASYNC)
1253 const_eio (MS_INVALIDATE)
1254 const_eio (MS_SYNC)
1255
1256 const_eio (MT_MODIFY)
1257
1258 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1259 const_eio (SYNC_FILE_RANGE_WRITE)
1260 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1261
1262 const_eio (FALLOC_FL_KEEP_SIZE)
1263 const_eio (FALLOC_FL_PUNCH_HOLE)
1264 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1265 const_eio (FALLOC_FL_ZERO_RANGE)
1266 const_eio (FALLOC_FL_INSERT_RANGE)
1267 const_eio (FALLOC_FL_UNSHARE_RANGE)
1268
1269 const_eio (RENAME_NOREPLACE)
1270 const_eio (RENAME_EXCHANGE)
1271 const_eio (RENAME_WHITEOUT)
1272
1273 const_eio (READDIR_DENTS)
1274 const_eio (READDIR_DIRS_FIRST)
1275 const_eio (READDIR_STAT_ORDER)
1276 const_eio (READDIR_FOUND_UNKNOWN)
1277
1278 const_eio (DT_UNKNOWN)
1279 const_eio (DT_FIFO)
1280 const_eio (DT_CHR)
1281 const_eio (DT_DIR)
1282 const_eio (DT_BLK)
1283 const_eio (DT_REG)
1284 const_eio (DT_LNK)
1285 const_eio (DT_SOCK)
1286 const_eio (DT_WHT)
1287 };
1288
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1289 aio_stash = gv_stashpv ("IO::AIO" , 1);
1290 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1291 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1292 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1293
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1294 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1295 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 1296
1425 X_COND_CHECK (reqwait); 1297 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 1298
1431 create_pipe (respipe); 1299 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1300}
1435 1301
1436void 1302void
1303reinit ()
1304 PROTOTYPE:
1305
1306void
1437max_poll_reqs (int nreqs) 1307max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1308 PROTOTYPE: $
1439 CODE: 1309 CODE:
1440 max_poll_reqs = nreqs; 1310 eio_set_max_poll_reqs (nreqs);
1441 1311
1442void 1312void
1443max_poll_time (double nseconds) 1313max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1314 PROTOTYPE: $
1445 CODE: 1315 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1316 eio_set_max_poll_time (nseconds);
1447 1317
1448void 1318void
1449min_parallel (int nthreads) 1319min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1320 PROTOTYPE: $
1459 CODE: 1321 CODE:
1460 set_max_idle (nthreads); 1322 eio_set_min_parallel (nthreads);
1461 1323
1462int 1324void
1463max_outstanding (int maxreqs) 1325max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1326 PROTOTYPE: $
1465 CODE: 1327 CODE:
1466 RETVAL = max_outstanding; 1328 eio_set_max_parallel (nthreads);
1329
1330void
1331max_idle (unsigned int nthreads)
1332 PROTOTYPE: $
1333 CODE:
1334 eio_set_max_idle (nthreads);
1335
1336void
1337idle_timeout (unsigned int seconds)
1338 PROTOTYPE: $
1339 CODE:
1340 eio_set_idle_timeout (seconds);
1341
1342void
1343max_outstanding (unsigned int maxreqs)
1344 PROTOTYPE: $
1345 CODE:
1467 max_outstanding = maxreqs; 1346 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 1347
1471void 1348void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1349aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1350 PPCODE:
1475{ 1351{
1476 dREQ; 1352 dREQ;
1477 1353
1354 req->type = EIO_WD_OPEN;
1355 req_set_path1 (req, pathname);
1356
1357 REQ_SEND;
1358}
1359
1360void
1361aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1362 PPCODE:
1363{
1364 dREQ;
1365
1478 req->type = REQ_OPEN; 1366 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1367 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1368 req->int1 = flags;
1482 req->mode = mode; 1369 req->int2 = mode;
1483 1370
1484 REQ_SEND; 1371 REQ_SEND;
1485} 1372}
1486 1373
1487void 1374void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1375aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1376 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1377 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1378 aio_fdatasync = EIO_FDATASYNC
1379 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1380 PPCODE:
1495{ 1381{
1382 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1383 dREQ;
1497 1384
1498 req->type = ix; 1385 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1386 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1387 req->int1 = fd;
1501 1388
1502 REQ_SEND (req); 1389 REQ_SEND;
1503} 1390}
1504 1391
1505void 1392void
1393aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1394 PPCODE:
1395{
1396 int fd = s_fileno_croak (fh, 0);
1397 dREQ;
1398
1399 req->type = EIO_SYNC_FILE_RANGE;
1400 req->sv1 = newSVsv (fh);
1401 req->int1 = fd;
1402 req->offs = offset;
1403 req->size = nbytes;
1404 req->int2 = flags;
1405
1406 REQ_SEND;
1407}
1408
1409void
1410aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1411 PPCODE:
1412{
1413 int fd = s_fileno_croak (fh, 0);
1414 dREQ;
1415
1416 req->type = EIO_FALLOCATE;
1417 req->sv1 = newSVsv (fh);
1418 req->int1 = fd;
1419 req->int2 = mode;
1420 req->offs = offset;
1421 req->size = len;
1422
1423 REQ_SEND;
1424}
1425
1426void
1427aio_close (SV *fh, SV *callback = &PL_sv_undef)
1428 PPCODE:
1429{
1430 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1431 int fd = s_fileno_croak (fh, 0);
1432 dREQ;
1433
1434 if (expect_false (close_fd < 0))
1435 {
1436 int pipefd [2];
1437
1438 if (
1439#ifdef _WIN32
1440 _pipe (pipefd, 1, _O_BINARY) < 0
1441#else
1442 pipe (pipefd) < 0
1443 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1444#endif
1445 || close (pipefd [1]) < 0
1446 )
1447 abort (); /*D*/
1448
1449 close_fd = pipefd [0];
1450 }
1451
1452 req->type = EIO_DUP2;
1453 req->int1 = close_fd;
1454 req->sv2 = newSVsv (fh);
1455 req->int2 = fd;
1456
1457 REQ_SEND;
1458}
1459
1460void
1461aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1462 PPCODE:
1463{
1464 int fd = s_fileno_croak (fh, 0);
1465 dREQ;
1466
1467 req->type = EIO_SEEK;
1468 req->sv1 = newSVsv (fh);
1469 req->int1 = fd;
1470 req->offs = SvVAL64 (offset);
1471 req->int2 = whence;
1472
1473 REQ_SEND;
1474}
1475
1476void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1477aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1507 ALIAS: 1478 ALIAS:
1508 aio_read = REQ_READ 1479 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1480 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1481 PPCODE:
1512{ 1482{
1513 STRLEN svlen; 1483 STRLEN svlen;
1484 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1485 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1486 UV len = SvUV (length);
1516 1487
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1488 if (dataoffset < 0)
1521 dataoffset += svlen; 1489 dataoffset += svlen;
1522 1490
1523 if (dataoffset < 0 || dataoffset > svlen) 1491 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1492 croak ("dataoffset outside of data scalar");
1525 1493
1526 if (ix == REQ_WRITE) 1494 if (ix == EIO_WRITE)
1527 { 1495 {
1528 /* write: check length and adjust. */ 1496 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1497 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1498 len = svlen - dataoffset;
1531 } 1499 }
1532 else 1500 else
1533 { 1501 {
1534 /* read: grow scalar as necessary */ 1502 /* read: check type and grow scalar as necessary */
1503 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1504 svptr = sv_grow (data, len + dataoffset + 1);
1505 else if (SvCUR (data) < len + dataoffset)
1506 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1507 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1508
1541 { 1509 {
1542 dREQ; 1510 dREQ;
1543 1511
1544 req->type = ix; 1512 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1513 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1514 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1515 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1516 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1517 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1518 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1519 req->stroffset = dataoffset;
1553 1520
1554 if (!SvREADONLY (data)) 1521 if (!SvREADONLY (data))
1555 { 1522 {
1556 SvREADONLY_on (data); 1523 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1527 REQ_SEND;
1561 } 1528 }
1562} 1529}
1563 1530
1564void 1531void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1532aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1566 PROTOTYPE: $$;$ 1533 ALIAS:
1534 aio_ioctl = EIO_IOCTL
1535 aio_fcntl = EIO_FCNTL
1567 PPCODE: 1536 PPCODE:
1568{ 1537{
1569 SV *data; 1538 int fd = s_fileno_croak (fh, 0);
1570 dREQ; 1539 char *svptr;
1571 1540
1572 data = newSV (NAME_MAX); 1541 if (SvPOK (arg) || !SvNIOK (arg))
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK;
1576 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE:
1588{
1589 dREQ;
1590
1591 req->type = REQ_SENDFILE;
1592 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1594 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1596 req->offs = SvVAL64 (in_offset);
1597 req->size = length;
1598
1599 REQ_SEND;
1600}
1601
1602void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE:
1606{
1607 dREQ;
1608
1609 req->type = REQ_READAHEAD;
1610 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1612 req->offs = SvVAL64 (offset);
1613 req->size = length;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS:
1621 aio_stat = REQ_STAT
1622 aio_lstat = REQ_LSTAT
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 { 1542 {
1630 req_destroy (req); 1543 STRLEN svlen;
1631 croak ("out of memory during aio_stat statdata allocation"); 1544 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1632 } 1545#ifdef IOCPARM_LEN
1546 STRLEN need = IOCPARM_LEN (request);
1547#else
1548 STRLEN need = 256;
1549#endif
1633 1550
1634 req->flags |= FLAG_PTR2_FREE; 1551 if (svlen < need)
1635 req->sv1 = newSVsv (fh_or_path); 1552 svptr = SvGROW (arg, need);
1636
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1553 }
1642 else 1554 else
1555 svptr = (char *)SvIV (arg);
1556
1643 { 1557 {
1558 dREQ;
1559
1644 req->type = REQ_FSTAT; 1560 req->type = ix;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1561 req->sv1 = newSVsv (fh);
1562 req->int1 = fd;
1563 req->int2 = (long)request;
1564 req->sv2 = SvREFCNT_inc (arg);
1565 req->ptr2 = svptr;
1566
1567 REQ_SEND;
1646 } 1568 }
1569}
1570
1571void
1572aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1573 ALIAS:
1574 aio_readlink = EIO_READLINK
1575 aio_realpath = EIO_REALPATH
1576 PPCODE:
1577{
1578 dREQ;
1579
1580 req->type = ix;
1581 req_set_path1 (req, pathname);
1647 1582
1648 REQ_SEND; 1583 REQ_SEND;
1649} 1584}
1650 1585
1651void 1586void
1587aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1588 PPCODE:
1589{
1590 int ifd = s_fileno_croak (in_fh , 0);
1591 int ofd = s_fileno_croak (out_fh, 1);
1592 dREQ;
1593
1594 req->type = EIO_SENDFILE;
1595 req->sv1 = newSVsv (out_fh);
1596 req->int1 = ofd;
1597 req->sv2 = newSVsv (in_fh);
1598 req->int2 = ifd;
1599 req->offs = in_offset;
1600 req->size = length;
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 int fd = s_fileno_croak (fh, 0);
1610 dREQ;
1611
1612 req->type = EIO_READAHEAD;
1613 req->sv1 = newSVsv (fh);
1614 req->int1 = fd;
1615 req->offs = offset;
1616 req->size = length;
1617
1618 REQ_SEND;
1619}
1620
1621void
1622aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1623 ALIAS:
1624 aio_stat = EIO_STAT
1625 aio_lstat = EIO_LSTAT
1626 aio_statvfs = EIO_STATVFS
1627 PPCODE:
1628{
1629 dREQ;
1630
1631 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1632
1633 REQ_SEND;
1634}
1635
1636void
1637st_xtime ()
1638 ALIAS:
1639 st_atime = 1
1640 st_mtime = 2
1641 st_ctime = 4
1642 st_xtime = 7
1643 PPCODE:
1644 EXTEND (SP, 3);
1645 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1646 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1647 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1648
1649void
1650st_xtimensec ()
1651 ALIAS:
1652 st_atimensec = 1
1653 st_mtimensec = 2
1654 st_ctimensec = 4
1655 st_xtimensec = 7
1656 PPCODE:
1657 EXTEND (SP, 3);
1658 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1659 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1660 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1661
1662UV
1663major (UV dev)
1664 ALIAS:
1665 minor = 1
1666 CODE:
1667 RETVAL = ix ? minor (dev) : major (dev);
1668 OUTPUT:
1669 RETVAL
1670
1671UV
1672makedev (UV maj, UV min)
1673 CODE:
1674 RETVAL = makedev (maj, min);
1675 OUTPUT:
1676 RETVAL
1677
1678void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1679aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1653 PPCODE: 1680 PPCODE:
1654{ 1681{
1655 dREQ; 1682 dREQ;
1656 1683
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1684 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1685 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1686 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1687
1672 REQ_SEND; 1688 REQ_SEND;
1673} 1689}
1674 1690
1675void 1691void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1677 PPCODE: 1693 PPCODE:
1678{ 1694{
1679 dREQ; 1695 dREQ;
1680 1696
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1697 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1698 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1699
1695 REQ_SEND; 1700 REQ_SEND;
1696} 1701}
1697 1702
1698void 1703void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1704aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1700 PPCODE: 1705 PPCODE:
1701{ 1706{
1702 dREQ; 1707 dREQ;
1703 1708
1704 req->mode = mode; 1709 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1710 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1711
1718 REQ_SEND; 1712 REQ_SEND;
1719} 1713}
1720 1714
1721void 1715void
1722aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1716aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1723 PPCODE: 1717 PPCODE:
1724{ 1718{
1725 dREQ; 1719 dREQ;
1726 1720
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1721 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1722 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1723 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730
1731 if (SvPOK (fh_or_path))
1732 {
1733 req->type = REQ_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 }
1736 else
1737 {
1738 req->type = REQ_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 }
1741 1724
1742 REQ_SEND; 1725 REQ_SEND;
1743} 1726}
1744 1727
1745void 1728void
1729aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1730 PPCODE:
1731{
1732 dREQ;
1733
1734 req->type = EIO_READDIR;
1735 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1736
1737 if (flags & EIO_READDIR_DENTS)
1738 req->int1 |= EIO_READDIR_CUSTOM2;
1739
1740 req_set_path1 (req, pathname);
1741
1742 REQ_SEND;
1743}
1744
1745void
1746aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1747 PPCODE:
1748{
1749 dREQ;
1750
1751 req->type = EIO_MKDIR;
1752 req->int2 = mode;
1753 req_set_path1 (req, pathname);
1754
1755 REQ_SEND;
1756}
1757
1758void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1759aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1747 ALIAS: 1760 ALIAS:
1748 aio_unlink = REQ_UNLINK 1761 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1762 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1763 aio_readdir = EIO_READDIR
1751 PPCODE: 1764 PPCODE:
1752{ 1765{
1753 dREQ; 1766 dREQ;
1754 1767
1755 req->type = ix; 1768 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1769 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758 1770
1759 REQ_SEND; 1771 REQ_SEND;
1760} 1772}
1761 1773
1762void 1774void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1764 PPCODE:
1765{
1766 dREQ;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1775aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1778 ALIAS: 1776 ALIAS:
1779 aio_link = REQ_LINK 1777 aio_link = EIO_LINK
1780 aio_symlink = REQ_SYMLINK 1778 aio_symlink = EIO_SYMLINK
1781 aio_rename = REQ_RENAME 1779 aio_rename = EIO_RENAME
1782 PPCODE: 1780 PPCODE:
1783{ 1781{
1782 eio_wd wd2 = 0;
1784 dREQ; 1783 dREQ;
1785 1784
1786 req->type = ix; 1785 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1786 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1787 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1788 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1789
1792 REQ_SEND; 1790 REQ_SEND;
1793} 1791}
1794 1792
1795void 1793void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1794aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1797 PPCODE: 1795 PPCODE:
1798{ 1796{
1797 eio_wd wd2 = 0;
1799 dREQ; 1798 dREQ;
1800 1799
1801 req->type = REQ_MKNOD; 1800 req->type = EIO_RENAME;
1802 req->sv1 = newSVsv (pathname); 1801 req_set_path1 (req, oldpath);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1802 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1804 req->mode = (mode_t)mode; 1803 req->int2 = flags;
1805 req->offs = dev; 1804 req->int3 = (long)wd2;
1806 1805
1807 REQ_SEND; 1806 REQ_SEND;
1808} 1807}
1809 1808
1810void 1809void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1810aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1812 PPCODE: 1811 PPCODE:
1813{ 1812{
1814 dREQ; 1813 dREQ;
1814
1815 req->type = EIO_MKNOD;
1816 req->int2 = (mode_t)mode;
1817 req->offs = dev;
1818 req_set_path1 (req, pathname);
1819
1820 REQ_SEND;
1821}
1815 1822
1823void
1824aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1825 ALIAS:
1826 aio_mtouch = EIO_MTOUCH
1827 aio_msync = EIO_MSYNC
1828 PPCODE:
1829{
1830 STRLEN svlen;
1831 char *svptr = SvPVbyte (data, svlen);
1832 UV len = SvUV (length);
1833
1834 if (flags < 0)
1835 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1836
1837 if (offset < 0)
1838 offset += svlen;
1839
1840 if (offset < 0 || offset > svlen)
1841 croak ("offset outside of scalar");
1842
1843 if (!SvOK (length) || len + offset > svlen)
1844 len = svlen - offset;
1845
1846 {
1847 dREQ;
1848
1849 req->type = ix;
1850 req->sv2 = SvREFCNT_inc (data);
1851 req->ptr2 = (char *)svptr + offset;
1852 req->size = len;
1853 req->int1 = flags;
1854
1855 REQ_SEND;
1856 }
1857}
1858
1859void
1860aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1861 PPCODE:
1862{
1863 STRLEN svlen;
1864 char *svptr = SvPVbyte (data, svlen);
1865 UV len = SvUV (length);
1866
1867 if (offset < 0)
1868 offset += svlen;
1869
1870 if (offset < 0 || offset > svlen)
1871 croak ("offset outside of scalar");
1872
1873 if (!SvOK (length) || len + offset > svlen)
1874 len = svlen - offset;
1875
1876 {
1877 dREQ;
1878
1879 req->type = EIO_MLOCK;
1880 req->sv2 = SvREFCNT_inc (data);
1881 req->ptr2 = (char *)svptr + offset;
1882 req->size = len;
1883
1884 REQ_SEND;
1885 }
1886}
1887
1888void
1889aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1890 PPCODE:
1891{
1892 dREQ;
1893
1894 req->type = EIO_MLOCKALL;
1895 req->int1 = flags;
1896
1897 REQ_SEND;
1898}
1899
1900void
1901aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1902 PPCODE:
1903{
1904 int fd = s_fileno_croak (fh, 0);
1905 dREQ;
1906
1907 req->type = EIO_CUSTOM;
1908 req->sv1 = newSVsv (fh);
1909 req->int1 = fd;
1910
1911 req->feed = fiemap;
1912#if HAVE_FIEMAP
1913 /* keep our fingers crossed that the next two types are 64 bit */
1914 req->offs = start;
1915 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1916 req->int2 = flags;
1917 req->int3 = SvOK (count) ? SvIV (count) : -1;
1918#endif
1919
1920 REQ_SEND;
1921}
1922
1923void
1924aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1925 PPCODE:
1926{
1927 char *svptr = 0;
1928
1929 sv_clear_foreign (data);
1930
1931 if (length) /* known length, directly read into scalar */
1932 {
1933 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1934 svptr = sv_grow (data, length + 1);
1935 else if (SvCUR (data) < length)
1936 croak ("length outside of scalar, and cannot grow");
1937 else
1938 svptr = SvPVbyte_nolen (data);
1939 }
1940
1941 {
1942 dREQ;
1943
1944 req->type = EIO_SLURP;
1945 req_set_path1 (req, pathname);
1946 req->offs = offset;
1947 req->size = length;
1948 req->sv2 = SvREFCNT_inc (data);
1949 req->ptr2 = svptr;
1950
1951 if (!SvREADONLY (data))
1952 {
1953 SvREADONLY_on (data);
1954 req->flags |= FLAG_SV2_RO_OFF;
1955 }
1956
1957 REQ_SEND;
1958 }
1959}
1960
1961void
1962aio_busy (double delay, SV *callback = &PL_sv_undef)
1963 PPCODE:
1964{
1965 dREQ;
1966
1816 req->type = REQ_BUSY; 1967 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1968 req->nv1 = delay < 0. ? 0. : delay;
1818 1969
1819 REQ_SEND; 1970 REQ_SEND;
1820} 1971}
1821 1972
1822void 1973void
1823aio_group (SV *callback=&PL_sv_undef) 1974aio_group (SV *callback = &PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1975 PPCODE:
1826{ 1976{
1827 dREQ; 1977 dREQ;
1828 1978
1829 req->type = REQ_GROUP; 1979 req->type = EIO_GROUP;
1830 1980
1981 PUTBACK;
1831 req_send (req); 1982 req_submit (req);
1983 SPAGAIN;
1984
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1985 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1986}
1834 1987
1835void 1988void
1836aio_nop (SV *callback=&PL_sv_undef) 1989aio_nop (SV *callback = &PL_sv_undef)
1990 ALIAS:
1991 aio_nop = EIO_NOP
1992 aio_sync = EIO_SYNC
1837 PPCODE: 1993 PPCODE:
1838{ 1994{
1839 dREQ; 1995 dREQ;
1840 1996
1841 req->type = REQ_NOP; 1997 req->type = ix;
1842 1998
1843 REQ_SEND; 1999 REQ_SEND;
1844} 2000}
1845 2001
1846int 2002int
1847aioreq_pri (int pri = 0) 2003aioreq_pri (int pri = NO_INIT)
1848 PROTOTYPE: ;$
1849 CODE: 2004 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 2005 RETVAL = next_pri;
1851 if (items > 0) 2006 if (items > 0)
1852 { 2007 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 2008 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 2009 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 2010 next_pri = pri;
1856 } 2011 }
1857 OUTPUT: 2012 OUTPUT:
1858 RETVAL 2013 RETVAL
1859 2014
1860void 2015void
1861aioreq_nice (int nice = 0) 2016aioreq_nice (int nice = 0)
1862 CODE: 2017 CODE:
1863 nice = next_pri - nice; 2018 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 2019 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 2020 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 2021 next_pri = nice;
1867 2022
1868void 2023void
1869flush () 2024flush ()
1870 PROTOTYPE:
1871 CODE: 2025 CODE:
1872 while (nreqs) 2026 while (eio_nreqs ())
1873 { 2027 {
1874 poll_wait (); 2028 poll_wait ();
1875 poll_cb (); 2029 poll_cb ();
1876 } 2030 }
1877 2031
1878int 2032int
1879poll() 2033poll ()
1880 PROTOTYPE:
1881 CODE: 2034 CODE:
1882 poll_wait (); 2035 poll_wait ();
1883 RETVAL = poll_cb (); 2036 RETVAL = poll_cb ();
1884 OUTPUT: 2037 OUTPUT:
1885 RETVAL 2038 RETVAL
1886 2039
1887int 2040int
1888poll_fileno() 2041poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 2042 CODE:
1891 RETVAL = respipe [0]; 2043 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 2044 OUTPUT:
1893 RETVAL 2045 RETVAL
1894 2046
1895int 2047int
1896poll_cb(...) 2048poll_cb (...)
1897 PROTOTYPE: 2049 PROTOTYPE:
1898 CODE: 2050 CODE:
1899 RETVAL = poll_cb (); 2051 RETVAL = poll_cb ();
1900 OUTPUT: 2052 OUTPUT:
1901 RETVAL 2053 RETVAL
1902 2054
1903void 2055void
1904poll_wait() 2056poll_wait ()
1905 PROTOTYPE:
1906 CODE: 2057 CODE:
1907 poll_wait (); 2058 poll_wait ();
1908 2059
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 2060int
1947nreqs() 2061nreqs ()
1948 PROTOTYPE:
1949 CODE: 2062 CODE:
1950 RETVAL = nreqs; 2063 RETVAL = eio_nreqs ();
1951 OUTPUT: 2064 OUTPUT:
1952 RETVAL 2065 RETVAL
1953 2066
1954int 2067int
1955nready() 2068nready ()
1956 PROTOTYPE:
1957 CODE: 2069 CODE:
1958 RETVAL = get_nready (); 2070 RETVAL = eio_nready ();
1959 OUTPUT: 2071 OUTPUT:
1960 RETVAL 2072 RETVAL
1961 2073
1962int 2074int
1963npending() 2075npending ()
1964 PROTOTYPE:
1965 CODE: 2076 CODE:
1966 RETVAL = get_npending (); 2077 RETVAL = eio_npending ();
1967 OUTPUT: 2078 OUTPUT:
1968 RETVAL 2079 RETVAL
1969 2080
1970int 2081int
1971nthreads() 2082nthreads ()
1972 PROTOTYPE:
1973 CODE: 2083 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2084 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 2085 OUTPUT:
1978 RETVAL 2086 RETVAL
1979 2087
2088int
2089fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2090 CODE:
2091 RETVAL = posix_fadvise (fh, offset, length, advice);
2092 OUTPUT:
2093 RETVAL
2094
2095IV
2096sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2097 CODE:
2098 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2099 OUTPUT:
2100 RETVAL
2101
2102void
2103mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2104 PPCODE:
2105 sv_clear_foreign (scalar);
2106{
2107 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2108 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2109 if (addr == (void *)-1)
2110 XSRETURN_NO;
2111
2112 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2113
2114 if (!(prot & PROT_WRITE))
2115 SvREADONLY_on (scalar);
2116
2117 XSRETURN_YES;
2118}
2119
2120void
2121munmap (SV *scalar)
2122 CODE:
2123 sv_clear_foreign (scalar);
2124
2125SV *
2126mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2127 CODE:
2128{
2129 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2130 void *new;
2131
2132 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2133 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2134
2135 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2136
2137 RETVAL = &PL_sv_no;
2138
2139 if (new != (void *)-1)
2140 {
2141 RETVAL = new == (void *)mg->mg_ptr
2142 ? newSVpvn ("0 but true", 10)
2143 : &PL_sv_yes;
2144
2145 mg->mg_ptr = (char *)new;
2146 mg->mg_obj = (SV *)new_length;
2147
2148 SvPVX (scalar) = mg->mg_ptr;
2149 SvCUR_set (scalar, new_length);
2150 }
2151}
2152 OUTPUT:
2153 RETVAL
2154
2155int
2156madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2157 ALIAS:
2158 mprotect = 1
2159 CODE:
2160{
2161 STRLEN svlen;
2162 void *addr = SvPVbyte (scalar, svlen);
2163 STRLEN len = SvUV (length);
2164
2165 if (offset < 0)
2166 offset += svlen;
2167
2168 if (offset < 0 || offset > svlen)
2169 croak ("offset outside of scalar");
2170
2171 if (!SvOK (length) || len + offset > svlen)
2172 len = svlen - offset;
2173
2174 addr = (void *)(((intptr_t)addr) + offset);
2175 eio_page_align (&addr, &len);
2176
2177 switch (ix)
2178 {
2179 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2180 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2181 }
2182}
2183 OUTPUT:
2184 RETVAL
2185
2186int
2187munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2188 CODE:
2189{
2190 STRLEN svlen;
2191 void *addr = SvPVbyte (scalar, svlen);
2192 size_t len = SvUV (length);
2193
2194 if (offset < 0)
2195 offset += svlen;
2196
2197 if (offset < 0 || offset > svlen)
2198 croak ("offset outside of scalar");
2199
2200 if (!SvOK (length) || len + offset > svlen)
2201 len = svlen - offset;
2202
2203 addr = (void *)(((intptr_t)addr) + offset);
2204 eio_page_align (&addr, &len);
2205#if _POSIX_MEMLOCK_RANGE
2206 RETVAL = munlock (addr, len);
2207#else
2208 RETVAL = EIO_ENOSYS ();
2209#endif
2210}
2211 OUTPUT:
2212 RETVAL
2213
2214int
2215munlockall ()
2216 CODE:
2217#if _POSIX_MEMLOCK
2218 munlockall ();
2219#else
2220 RETVAL = EIO_ENOSYS ();
2221#endif
2222 OUTPUT:
2223 RETVAL
2224
2225int
2226splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2227 CODE:
2228{
2229#if HAVE_LINUX_SPLICE
2230 loff_t off_in_, off_out_;
2231 RETVAL = splice (
2232 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2233 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2234 length, flags
2235 );
2236#else
2237 RETVAL = EIO_ENOSYS ();
2238#endif
2239}
2240 OUTPUT:
2241 RETVAL
2242
2243int
2244tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2245 CODE:
2246#if HAVE_LINUX_SPLICE
2247 RETVAL = tee (rfh, wfh, length, flags);
2248#else
2249 RETVAL = EIO_ENOSYS ();
2250#endif
2251 OUTPUT:
2252 RETVAL
2253
2254int
2255pipesize (aio_rfd rfh, int new_size = -1)
2256 PROTOTYPE: $;$
2257 CODE:
2258#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2259 if (new_size >= 0)
2260 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2261 else
2262 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2263#else
2264 errno = ENOSYS;
2265 RETVAL = -1;
2266#endif
2267 OUTPUT:
2268 RETVAL
2269
2270void
2271pipe2 (int flags = 0)
2272 PROTOTYPE: ;$
2273 PPCODE:
2274{
2275 int fd[2];
2276 int res;
2277
2278 if (flags)
2279#if HAVE_PIPE2
2280 res = pipe2 (fd, flags);
2281#else
2282 res = (errno = ENOSYS, -1);
2283#endif
2284 else
2285 res = pipe (fd);
2286
2287 if (!res)
2288 {
2289 EXTEND (SP, 2);
2290 PUSHs (newmortalFH (fd[0], O_RDONLY));
2291 PUSHs (newmortalFH (fd[1], O_WRONLY));
2292 }
2293}
2294
2295void
2296eventfd (unsigned int initval = 0, int flags = 0)
2297 PPCODE:
2298{
2299 int fd;
2300#if HAVE_EVENTFD
2301 fd = eventfd (initval, flags);
2302#else
2303 fd = (errno = ENOSYS, -1);
2304#endif
2305
2306 XPUSHs (newmortalFH (fd, O_RDWR));
2307}
2308
2309void
2310timerfd_create (int clockid, int flags = 0)
2311 PPCODE:
2312{
2313 int fd;
2314#if HAVE_TIMERFD
2315 fd = timerfd_create (clockid, flags);
2316#else
2317 fd = (errno = ENOSYS, -1);
2318#endif
2319
2320 XPUSHs (newmortalFH (fd, O_RDWR));
2321}
2322
2323void
2324timerfd_settime (SV *fh, int flags, NV interval, NV value)
2325 PPCODE:
2326{
2327 int fd = s_fileno_croak (fh, 0);
2328#if HAVE_TIMERFD
2329 int res;
2330 struct itimerspec its, ots;
2331
2332 ts_set (&its.it_interval, interval);
2333 ts_set (&its.it_value , value);
2334 res = timerfd_settime (fd, flags, &its, &ots);
2335
2336 if (!res)
2337 {
2338 EXTEND (SP, 2);
2339 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2340 PUSHs (newSVnv (ts_get (&ots.it_value)));
2341 }
2342#else
2343 errno = ENOSYS;
2344#endif
2345}
2346
2347void
2348timerfd_gettime (SV *fh)
2349 PPCODE:
2350{
2351 int fd = s_fileno_croak (fh, 0);
2352#if HAVE_TIMERFD
2353 int res;
2354 struct itimerspec ots;
2355 res = timerfd_gettime (fd, &ots);
2356
2357 if (!res)
2358 {
2359 EXTEND (SP, 2);
2360 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2361 PUSHs (newSVnv (ts_get (&ots.it_value)));
2362 }
2363#else
2364 errno = ENOSYS;
2365#endif
2366}
2367
2368UV
2369get_fdlimit ()
2370 CODE:
2371#if HAVE_RLIMITS
2372 struct rlimit rl;
2373 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2374 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2375#endif
2376 XSRETURN_UNDEF;
2377 OUTPUT:
2378 RETVAL
2379
2380void
2381min_fdlimit (UV limit = 0x7fffffffU)
2382 CODE:
2383{
2384#if HAVE_RLIMITS
2385 struct rlimit rl;
2386 rlim_t orig_rlim_max;
2387 UV bit;
2388
2389 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2390 goto fail;
2391
2392 if (rl.rlim_cur == RLIM_INFINITY)
2393 XSRETURN_YES;
2394
2395 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2396
2397 if (rl.rlim_cur < limit)
2398 {
2399 rl.rlim_cur = limit;
2400
2401 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2402 rl.rlim_max = rl.rlim_cur;
2403 }
2404
2405 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2406 XSRETURN_YES;
2407
2408 if (errno == EPERM)
2409 {
2410 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2411 /* our limit overflows a system-wide limit */
2412 /* try an adaptive algorithm, but do not lower the hardlimit */
2413 rl.rlim_max = 0;
2414 for (bit = 0x40000000U; bit; bit >>= 1)
2415 {
2416 rl.rlim_max |= bit;
2417 rl.rlim_cur = rl.rlim_max;
2418
2419 /* nevr decrease the hard limit */
2420 if (rl.rlim_max < orig_rlim_max)
2421 break;
2422
2423 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2424 rl.rlim_max &= ~bit; /* too high, remove bit again */
2425 }
2426
2427 /* now, raise the soft limit to the max permitted */
2428 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2429 {
2430 rl.rlim_cur = rl.rlim_max;
2431 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2432 errno = EPERM;
2433 }
2434 }
2435#endif
2436 fail:
2437 XSRETURN_UNDEF;
2438}
2439
2440void _on_next_submit (SV *cb)
2441 CODE:
2442 SvREFCNT_dec (on_next_submit);
2443 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2444
1980PROTOTYPES: DISABLE 2445PROTOTYPES: DISABLE
2446
2447MODULE = IO::AIO PACKAGE = IO::AIO::WD
2448
2449BOOT:
2450{
2451 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2452 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2453}
2454
2455void
2456DESTROY (SV *self)
2457 CODE:
2458{
2459 aio_wd wd = SvAIO_WD (self);
2460#if HAVE_AT
2461 {
2462 SV *callback = &PL_sv_undef;
2463 dREQ; /* clobbers next_pri :/ */
2464 next_pri = req->pri; /* restore next_pri */
2465 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2466 req->type = EIO_WD_CLOSE;
2467 req->wd = wd;
2468 REQ_SEND;
2469 }
2470#else
2471 eio_wd_close_sync (wd);
2472#endif
2473}
1981 2474
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2475MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 2476
1984void 2477void
1985cancel (aio_req_ornot req) 2478cancel (aio_req_ornot req)
1986 CODE: 2479 CODE:
1987 req_cancel (req); 2480 eio_cancel (req);
1988 2481
1989void 2482void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2483cb (aio_req_ornot req, SV *callback = NO_INIT)
1991 CODE: 2484 PPCODE:
2485{
2486 if (GIMME_V != G_VOID)
2487 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2488
2489 if (items > 1)
2490 {
2491 SV *cb_cv = get_cb (callback);
2492
1992 SvREFCNT_dec (req->callback); 2493 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 2494 req->callback = SvREFCNT_inc (cb_cv);
2495 }
2496}
1994 2497
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2498MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 2499
1997void 2500void
1998add (aio_req grp, ...) 2501add (aio_req grp, ...)
1999 PPCODE: 2502 PPCODE:
2000{ 2503{
2001 int i; 2504 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 2505
2007 if (grp->int1 == 2) 2506 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2507 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 2508
2010 for (i = 1; i < items; ++i ) 2509 for (i = 1; i < items; ++i )
2011 { 2510 {
2511 aio_req req;
2512
2012 if (GIMME_V != G_VOID) 2513 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2514 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 2515
2015 req = SvAIO_REQ (ST (i)); 2516 req = SvAIO_REQ (ST (i));
2016 2517
2017 if (req) 2518 if (req)
2018 { 2519 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 2520 }
2031} 2521}
2032 2522
2033void 2523void
2034cancel_subs (aio_req_ornot req) 2524cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 2533 AV *av;
2044 2534
2045 grp->errorno = errno; 2535 grp->errorno = errno;
2046 2536
2047 av = newAV (); 2537 av = newAV ();
2538 av_extend (av, items - 1);
2048 2539
2049 for (i = 1; i < items; ++i ) 2540 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 2541 av_push (av, newSVsv (ST (i)));
2051 2542
2052 SvREFCNT_dec (grp->sv1); 2543 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 2550 grp->errorno = errorno;
2060 2551
2061void 2552void
2062limit (aio_req grp, int limit) 2553limit (aio_req grp, int limit)
2063 CODE: 2554 CODE:
2064 grp->int2 = limit; 2555 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 2556
2067void 2557void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 2558feed (aio_req grp, SV *callback = &PL_sv_undef)
2069 CODE: 2559 CODE:
2070{ 2560{
2071 SvREFCNT_dec (grp->sv2); 2561 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 2562 grp->sv2 = newSVsv (callback);
2563 grp->feed = aio_grp_feed;
2073 2564
2074 if (grp->int2 <= 0) 2565 if (grp->int2 <= 0)
2075 grp->int2 = 2; 2566 grp->int2 = 2;
2076 2567
2077 aio_grp_feed (grp); 2568 eio_grp_limit (grp, grp->int2);
2078} 2569}
2079 2570

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