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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC vs.
Revision 1.260 by root, Tue Jul 24 04:58:59 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>
13#include <sys/stat.h> 17#include <sys/stat.h>
14#include <limits.h> 18#include <limits.h>
15#include <fcntl.h> 19#include <fcntl.h>
16#include <sched.h> 20#include <sched.h>
17 21
22#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
23# include <sys/mman.h>
24#endif
25
26/* the incompetent fool that created musl keeps __linux__, refuses
27 * to implement any linux standard apis, and also has no way to test
28 * for his broken iplementation. don't complain to me if this fails
29 * for you.
30 */
31#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
32# include <linux/fs.h>
33# ifdef FS_IOC_FIEMAP
34# include <linux/types.h>
35# include <linux/fiemap.h>
36# define HAVE_FIEMAP 1
37# endif
38#endif
39
40/* perl namespace pollution */
41#undef VERSION
42
43/* perl stupidly overrides readdir and maybe others */
44/* with thread-unsafe versions, imagine that :( */
45#undef readdir
46#undef opendir
47#undef closedir
48
18#ifdef _WIN32 49#ifdef _WIN32
19 50
20# define SIGIO 0 51 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 52
22#undef malloc 53 #undef malloc
23#undef free 54 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 55 #undef open
27# undef read 56 #undef read
28# undef write 57 #undef write
29# undef send 58 #undef send
30# undef recv 59 #undef recv
31# undef stat 60 #undef stat
61 #undef lstat
32# undef fstat 62 #undef fstat
33# define lstat stat
34# undef truncate 63 #undef truncate
35# undef ftruncate 64 #undef ftruncate
36# undef open 65 #undef open
66 #undef link
37# undef close 67 #undef close
38# undef unlink 68 #undef unlink
69 #undef mkdir
39# undef rmdir 70 #undef rmdir
40# undef rename 71 #undef rename
41# undef lseek 72 #undef lseek
73 #undef opendir
74 #undef readdir
75 #undef closedir
76 #undef chmod
77 #undef fchmod
78 #undef dup
79 #undef dup2
80 #undef abort
81 #undef pipe
42 82
43# define chown(a,b,c) (errno = ENOSYS, -1) 83 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 84 #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 85
57#else 86#else
58 87
59# include "autoconf/config.h"
60# include <sys/time.h> 88 #include <sys/time.h>
61# include <sys/select.h> 89 #include <sys/select.h>
62# include <unistd.h> 90 #include <unistd.h>
63# include <utime.h> 91 #include <utime.h>
64# include <signal.h> 92 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 93
67#endif 94 #define EIO_STRUCT_STAT Stat_t
68 95
69#if HAVE_SENDFILE 96#endif
70# if __linux 97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "libeio/config.h"
112
113#include "schmorp.h"
114
115#if HAVE_EVENTFD
71# include <sys/sendfile.h> 116# include <sys/eventfd.h>
72# elif __freebsd 117#endif
73# include <sys/socket.h> 118
119#if HAVE_TIMERFD
74# include <sys/uio.h> 120# include <sys/timerfd.h>
75# elif __hpux 121#endif
122
123#if HAVE_RLIMITS
124 #include <sys/time.h>
76# include <sys/socket.h> 125 #include <sys/resource.h>
77# elif __solaris /* not yet */ 126#endif
78# include <sys/sendfile.h> 127
128typedef SV SV8; /* byte-sv, used for argument-checking */
129typedef int aio_rfd; /* read file desriptor */
130typedef int aio_wfd; /* write file descriptor */
131
132static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
133
134#define EIO_REQ_MEMBERS \
135 SV *callback; \
136 SV *sv1, *sv2; \
137 SV *sv3, *sv4; \
138 STRLEN stroffset; \
139 SV *self;
140
141#define EIO_NO_WRAPPERS 1
142
143#include "libeio/eio.h"
144
145static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp);
148#define EIO_DESTROY(req) req_destroy (req)
149
150#include "libeio/eio.c"
151
152#if !HAVE_POSIX_FADVISE
153# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#if !HAVE_POSIX_MADVISE
157# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
158#endif
159
160#ifndef MAP_ANONYMOUS
161# ifdef MAP_ANON
162# define MAP_ANONYMOUS MAP_ANON
79# else 163# else
80# error sendfile support requested but not available 164# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 165# endif
82#endif 166#endif
83 167
84/* number of seconds after which idle threads exit */ 168#ifndef makedev
85#define IDLE_TIMEOUT 10 169# 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 170#endif
91 171#ifndef major
92/* buffer size for various temporary buffers */ 172# 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 173#endif
174#ifndef minor
175# define minor(dev) ((dev) & 0xff)
176#endif
101 177
102#define dBUF \ 178#if PAGESIZE <= 0
103 char *aio_buf; \ 179# define PAGESIZE sysconf (_SC_PAGESIZE)
104 X_LOCK (wrklock); \ 180#endif
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 181
106 X_UNLOCK (wrklock); \ 182/*****************************************************************************/
107 if (!aio_buf) \ 183
184#if !_POSIX_MAPPED_FILES
185# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
186# define munmap(addr,length) EIO_ENOSYS ()
187#endif
188
189#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS ()
191#endif
192
193#if !MREMAP_MAYMOVE
194# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
195#endif
196
197#define FOREIGN_MAGIC PERL_MAGIC_ext
198
199static int ecb_cold
200mmap_free (pTHX_ SV *sv, MAGIC *mg)
201{
202 int old_errno = errno;
203 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
204 errno = old_errno;
205
206 mg->mg_obj = 0; /* just in case */
207
208 SvREADONLY_off (sv);
209
210 if (SvPVX (sv) != mg->mg_ptr)
211 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
212
213 SvCUR_set (sv, 0);
214 SvPVX (sv) = 0;
215 SvOK_off (sv);
216
108 return -1; 217 return 0;
218}
109 219
110typedef SV SV8; /* byte-sv, used for argument-checking */ 220static MGVTBL mmap_vtbl = {
111 221 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}; 222};
129 223
130#define AIO_REQ_KLASS "IO::AIO::REQ" 224static int ecb_cold
131#define AIO_GRP_KLASS "IO::AIO::GRP" 225sysfree_free (pTHX_ SV *sv, MAGIC *mg)
132
133typedef struct aio_cb
134{ 226{
135 struct aio_cb *volatile next; 227 free (mg->mg_ptr);
228 mg->mg_obj = 0; /* just in case */
136 229
137 SV *callback; 230 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;
144 231
145 STRLEN stroffset; 232 if (SvPVX (sv) != mg->mg_ptr)
146 int type; 233 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 234
151 unsigned char flags; 235 SvCUR_set (sv, 0);
152 unsigned char pri; 236 SvPVX (sv) = 0;
237 SvOK_off (sv);
153 238
154 SV *self; /* the perl counterpart of this request, if any */ 239 return 0;
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 240}
156} aio_cb;
157 241
158enum { 242static MGVTBL sysfree_vtbl = {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */ 243 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}; 244};
163 245
164typedef aio_cb *aio_req; 246/*****************************************************************************/
165typedef aio_cb *aio_req_ornot;
166 247
167enum { 248/* helper: set scalar to foreign ptr with custom free */
168 PRI_MIN = -4, 249static void
169 PRI_MAX = 4, 250sv_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{ 251{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 252 sv_force_normal (sv);
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187 253
188static thread_t main_tid; 254 /* we store the length in mg_obj, as namlen is I32 :/ */
189static int main_sig; 255 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
190static int block_sig_level; 256 ->mg_obj = (SV *)length;
191 257
192void block_sig () 258 SvUPGRADE (sv, SVt_PV); /* nop... */
193{
194 sigset_t ss;
195 259
196 if (block_sig_level++) 260 if (SvLEN (sv))
261 Safefree (SvPVX (sv));
262
263 SvPVX (sv) = (char *)addr;
264 SvCUR_set (sv, length);
265 SvLEN_set (sv, 0);
266 SvPOK_only (sv);
267}
268
269static void
270sv_clear_foreign (SV *sv)
271{
272 /* todo: iterate over magic and only free ours, but of course */
273 /* the perl5porters will call that (correct) behaviour buggy */
274 sv_unmagic (sv, FOREIGN_MAGIC);
275}
276
277/*****************************************************************************/
278
279/* defines all sorts of constants to 0 unless they are already defined */
280/* also provides const_iv_ and const_niv_ macros for them */
281#include "def0.h"
282
283/*****************************************************************************/
284
285static void
286fiemap (eio_req *req)
287{
288 req->result = -1;
289
290#if HAVE_FIEMAP
291 /* assume some c99 */
292 struct fiemap *fiemap = 0;
293 size_t end_offset;
294 int count = req->int3;
295
296 req->flags |= EIO_FLAG_PTR1_FREE;
297
298 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
299 /* increase in 3.5kb steps */
300 if (count < 0)
301 count = 8;
302
303 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
304 errno = ENOMEM;
305 if (!fiemap)
197 return; 306 return;
198 307
199 if (!main_sig) 308 req->ptr1 = fiemap;
309
310 fiemap->fm_start = req->offs;
311 fiemap->fm_length = req->size;
312 fiemap->fm_flags = req->int2;
313 fiemap->fm_extent_count = count;
314
315 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 316 return;
201 317
202 sigemptyset (&ss); 318 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 319 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 320 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 321 goto done;
206 322
207void unblock_sig () 323 /* else we have to loop -
208{ 324 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 325 * number of extents needed, but linux often feels like not returning all
326 * extents, without telling us it left any out. this complicates
327 * this quite a bit.
328 */
210 329
211 if (--block_sig_level) 330 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 331
214 if (!main_sig) 332 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 { 333 {
247 closedir (wrk->dirp); 334 /* 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; 335 char scratch[3072];
249 } 336 struct fiemap *incmap = (struct fiemap *)scratch;
250 337
251 if (wrk->dbuf) 338 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 339 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 340 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 341 incmap->fm_flags = fiemap->fm_flags;
255 } 342 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 343
258static void worker_free (worker *wrk) 344 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_osf [2], respipe [2] = { -1, -1 };
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; 345 return;
353 346
354 --q->size; 347 if (!incmap->fm_mapped_extents)
348 goto done;
355 349
356 for (pri = NUM_PRI; pri--; ) 350 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 351 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 352 errno = ENOMEM;
359
360 if (req) 353 if (!fiemap)
354 return;
355
356 req->ptr1 = fiemap;
357
358 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 359 {
362 if (!(q->qs[pri] = req->next)) 360 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 361
365 return req; 362 if (e->fe_logical + e->fe_length >= end_offset)
363 goto done;
364
365 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
366
367 if (e->fe_flags & FIEMAP_EXTENT_LAST)
368 goto done;
369
366 } 370 }
367 } 371 }
368 372
369 abort (); 373done:
370} 374 req->result = 0;
371 375
372static int poll_cb (); 376#else
373static int req_invoke (aio_req req); 377 errno = ENOSYS;
378#endif
379}
380
381/*****************************************************************************/
382
383enum {
384 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
385};
386
387typedef eio_req *aio_req;
388typedef eio_req *aio_req_ornot;
389typedef eio_wd aio_wd;
390
391static SV *on_next_submit;
392static int next_pri = EIO_PRI_DEFAULT;
393static int max_outstanding;
394
395static s_epipe respipe;
396
374static void req_destroy (aio_req req); 397static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 398static void req_cancel (aio_req req);
376 399
400static void
401want_poll (void)
402{
403 /* write a dummy byte to the pipe so fh becomes ready */
404 s_epipe_signal (&respipe);
405}
406
407static void
408done_poll (void)
409{
410 /* read any signals sent by the worker threads */
411 s_epipe_drain (&respipe);
412}
413
377/* must be called at most once */ 414/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 415static SV *
416req_sv (aio_req req, HV *stash)
379{ 417{
380 if (!req->self) 418 if (!req->self)
381 { 419 {
382 req->self = (SV *)newHV (); 420 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 421 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 422 }
385 423
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 424 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 425}
388 426
389static aio_req SvAIO_REQ (SV *sv) 427static SV *
428newSVaio_wd (aio_wd wd)
429{
430 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
431}
432
433static aio_req
434SvAIO_REQ (SV *sv)
390{ 435{
391 MAGIC *mg; 436 MAGIC *mg;
392 437
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 438 if (!SvROK (sv)
439 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
440 || (SvSTASH (SvRV (sv)) != aio_grp_stash
441 && SvSTASH (SvRV (sv)) != aio_req_stash
442 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 443 croak ("object of class IO::AIO::REQ expected");
395 444
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 445 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 446
398 return mg ? (aio_req)mg->mg_ptr : 0; 447 return mg ? (aio_req)mg->mg_ptr : 0;
399} 448}
400 449
450static aio_wd
451SvAIO_WD (SV *sv)
452{
453 if (!SvROK (sv)
454 || SvTYPE (SvRV (sv)) != SVt_PVMG
455 || SvSTASH (SvRV (sv)) != aio_wd_stash)
456 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
457
458 return (aio_wd)(long)SvIVX (SvRV (sv));
459}
460
461static SV *
462newmortalFH (int fd, int flags)
463{
464 if (fd < 0)
465 return &PL_sv_undef;
466
467 GV *gv = (GV *)sv_newmortal ();
468 char sym[64];
469 int symlen;
470
471 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
472 gv_init (gv, aio_stash, sym, symlen, 0);
473
474 symlen = snprintf (
475 sym,
476 sizeof (sym),
477 "%s&=%d",
478 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
479 fd
480 );
481
482 return do_open (gv, sym, symlen, 0, 0, 0, 0)
483 ? (SV *)gv : &PL_sv_undef;
484}
485
486static void
401static void aio_grp_feed (aio_req grp) 487aio_grp_feed (aio_req grp)
402{ 488{
403 block_sig (); 489 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 490 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 491 dSP;
412 492
413 ENTER; 493 ENTER;
414 SAVETMPS; 494 SAVETMPS;
415 PUSHMARK (SP); 495 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 496 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 497 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 498 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 499 SPAGAIN;
420 FREETMPS; 500 FREETMPS;
421 LEAVE; 501 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 } 502 }
432
433 unblock_sig ();
434} 503}
435 504
436static void aio_grp_dec (aio_req grp) 505static void
506req_submit (eio_req *req)
437{ 507{
438 --grp->size; 508 eio_submit (req);
439 509
440 /* call feeder, if applicable */ 510 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 511 {
446 block_sig (); 512 dSP;
513 SV *cb = sv_2mortal (on_next_submit);
447 514
448 if (!req_invoke (grp)) 515 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 516
455 req_destroy (grp); 517 PUSHMARK (SP);
456 unblock_sig (); 518 PUTBACK;
519 call_sv (cb, G_DISCARD | G_EVAL);
457 } 520 }
458} 521}
459 522
523static int
460static int req_invoke (aio_req req) 524req_invoke (eio_req *req)
461{ 525{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 526 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 527 SvREADONLY_off (req->sv2);
466 528
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 529 if (!EIO_CANCELLED (req) && req->callback)
468 { 530 {
531 dSP;
532 static SV *sv_result_cache; /* caches the result integer SV */
533 SV *sv_result;
534
469 ENTER; 535 ENTER;
470 SAVETMPS; 536 SAVETMPS;
471 PUSHMARK (SP); 537 PUSHMARK (SP);
472 EXTEND (SP, 1); 538 EXTEND (SP, 1);
473 539
540 /* do not recreate the result IV from scratch each time */
541 if (expect_true (sv_result_cache))
542 {
543 sv_result = sv_result_cache; sv_result_cache = 0;
544 SvIV_set (sv_result, req->result);
545 SvIOK_only (sv_result);
546 }
547 else
548 {
549 sv_result = newSViv (req->result);
550 SvREADONLY_on (sv_result);
551 }
552
474 switch (req->type) 553 switch (req->type)
475 { 554 {
555 case EIO_WD_OPEN:
556 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
557 break;
558
476 case REQ_READDIR: 559 case EIO_READDIR:
477 { 560 {
478 SV *rv = &PL_sv_undef; 561 SV *rv = &PL_sv_undef;
479 562
480 if (req->result >= 0) 563 if (req->result >= 0)
481 { 564 {
482 int i; 565 int i;
483 char *buf = req->ptr2; 566 char *names = (char *)req->ptr2;
567 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 568 AV *av = newAV ();
485 569
486 av_extend (av, req->result - 1); 570 av_extend (av, req->result - 1);
487 571
488 for (i = 0; i < req->result; ++i) 572 for (i = 0; i < req->result; ++i)
489 { 573 {
490 SV *sv = newSVpv (buf, 0); 574 if (req->int1 & EIO_READDIR_DENTS)
575 {
576 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 577
578 if (req->int1 & EIO_READDIR_CUSTOM2)
579 {
580 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
581 AV *avent = newAV ();
582
583 av_extend (avent, 2);
584
585 if (!sv_type [ent->type])
586 {
587 sv_type [ent->type] = newSViv (ent->type);
588 SvREADONLY_on (sv_type [ent->type]);
589 }
590
591 av_store (avent, 0, namesv);
592 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
593 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
594
595 av_store (av, i, newRV_noinc ((SV *)avent));
596 }
597 else
492 av_store (av, i, sv); 598 av_store (av, i, namesv);
599
600 ++ent;
601 }
602 else
603 {
604 SV *name = newSVpv (names, 0);
605 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 606 names += SvCUR (name) + 1;
607 }
494 } 608 }
495 609
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 610 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 611 }
498 612
499 PUSHs (rv); 613 PUSHs (rv);
614
615 if (req->int1 & EIO_READDIR_CUSTOM1)
616 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 617 }
501 break; 618 break;
502 619
503 case REQ_OPEN: 620 case EIO_OPEN:
621 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
622 break;
623
624 case EIO_STATVFS:
625 case EIO_FSTATVFS:
504 { 626 {
505 /* convert fd to fh */ 627 SV *rv = &PL_sv_undef;
506 SV *fh; 628
629#ifndef _WIN32
630 if (req->result >= 0)
631 {
632 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
633 HV *hv = newHV ();
634 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
635 * chooses to make it a struct.
636 */
637 unsigned long fsid = 0;
638 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
507 639
508 PUSHs (sv_2mortal (newSViv (req->result))); 640 rv = sv_2mortal (newRV_noinc ((SV *)hv));
509 PUTBACK;
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
511 SPAGAIN;
512 641
513 fh = POPs; 642 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
514 PUSHMARK (SP); 643 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
644 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
645 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
646 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
647 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
648 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
649 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
650 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
651 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
652 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
653 }
654#endif
655
515 XPUSHs (fh); 656 PUSHs (rv);
516 } 657 }
658
517 break; 659 break;
518 660
519 case REQ_GROUP: 661 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 662 req->int1 = 2; /* mark group as finished */
521 663
522 if (req->sv1) 664 if (req->sv1)
523 { 665 {
524 int i; 666 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 670 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 671 PUSHs (*av_fetch (av, i, 0));
530 } 672 }
531 break; 673 break;
532 674
533 case REQ_NOP: 675 case EIO_NOP:
534 case REQ_BUSY: 676 case EIO_BUSY:
535 break; 677 break;
536 678
537 case REQ_READLINK: 679 case EIO_READLINK:
680 case EIO_REALPATH:
538 if (req->result > 0) 681 if (req->result > 0)
682 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
683 break;
684
685 case EIO_STAT:
686 case EIO_LSTAT:
687 case EIO_FSTAT:
688 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
689
690 if (!(PL_laststatval = req->result))
691 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
692 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
693
694 PUSHs (sv_result);
695 break;
696
697 case EIO_SEEK:
698 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
699 break;
700
701 case EIO_READ:
702 {
703 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
704 *SvEND (req->sv2) = 0;
705 SvPOK_only (req->sv2);
706 SvSETMAGIC (req->sv2);
707 PUSHs (sv_result);
708 }
709 break;
710
711 case EIO_SLURP:
712 {
713 if (req->result >= 0)
714 {
715 /* if length was originally not known, we steal the malloc'ed memory */
716 if (req->flags & EIO_FLAG_PTR2_FREE)
717 {
718 req->flags &= ~EIO_FLAG_PTR2_FREE;
719 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
720 }
721 else
722 {
723 SvCUR_set (req->sv2, req->result);
724 *SvEND (req->sv2) = 0;
725 SvPOK_only (req->sv2);
726 }
727
728 SvSETMAGIC (req->sv2);
729 }
730
731 PUSHs (sv_result);
732 }
733 break;
734
735 case EIO_CUSTOM:
736 if (req->feed == fiemap)
539 { 737 {
540 SvCUR_set (req->sv2, req->result); 738#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 739 if (!req->result)
740 {
741 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
742
743 if (fiemap->fm_extent_count)
744 {
745 AV *av = newAV ();
746 int i;
747
748 while (fiemap->fm_mapped_extents)
749 {
750 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
751 AV *ext_av = newAV ();
752
753 av_store (ext_av, 3, newSVuv (extent->fe_flags));
754 av_store (ext_av, 2, newSVval64 (extent->fe_length));
755 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
756 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
757
758 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
759 }
760
761 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
762 }
763 else
764 {
765 SvIV_set (sv_result, fiemap->fm_mapped_extents);
766 PUSHs (sv_result);
767 }
768 }
769#endif
543 } 770 }
771 else
772 PUSHs (sv_result);
544 break; 773 break;
545 774
546 case REQ_STAT: 775 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 776 if (req->result > 0)
548 case REQ_FSTAT: 777 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 778 /* 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;
560 779
561 default: 780 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 781 PUSHs (sv_result);
563 break; 782 break;
564 } 783 }
565 784
566 errno = req->errorno; 785 errno = req->errorno;
567 786
568 PUTBACK; 787 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 788 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 789 SPAGAIN;
790
791 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
792 SvREFCNT_dec (sv_result);
793 else
794 sv_result_cache = sv_result;
571 795
572 FREETMPS; 796 FREETMPS;
573 LEAVE; 797 LEAVE;
798
799 PUTBACK;
574 } 800 }
575 801
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); 802 return !!SvTRUE (ERRSV);
591} 803}
592 804
805static void
593static void req_destroy (aio_req req) 806req_destroy (aio_req req)
594{ 807{
595 if (req->self) 808 if (req->self)
596 { 809 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 810 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 811 SvREFCNT_dec (req->self);
599 } 812 }
600 813
601 SvREFCNT_dec (req->sv1); 814 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 815 SvREFCNT_dec (req->sv2);
816 SvREFCNT_dec (req->sv3);
817 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 818 SvREFCNT_dec (req->callback);
604 819
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 820 free (req);
609} 821}
610 822
823static void
611static void req_cancel_subs (aio_req grp) 824req_cancel_subs (aio_req grp)
612{ 825{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 826 if (grp->type != EIO_GROUP)
616 return; 827 return;
617 828
618 SvREFCNT_dec (grp->sv2); 829 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 830 grp->sv2 = 0;
620 831
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 832 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 833}
624 834
625static void req_cancel (aio_req req) 835static void ecb_cold
836create_respipe (void)
626{ 837{
627 req->flags |= FLAG_CANCELLED; 838 if (s_epipe_renew (&respipe))
628 839 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 840}
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
637 841
638static void 842static void
639create_respipe () 843poll_wait (void)
640{ 844{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe))
650#endif
651 croak ("unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674}
675
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait ()
772{
773 fd_set rfd;
774
775 while (nreqs) 845 while (eio_nreqs ())
776 { 846 {
777 int size; 847 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 848
849 X_LOCK (EIO_POOL->reslock);
779 size = res_queue.size; 850 size = EIO_POOL->res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 851 X_UNLOCK (EIO_POOL->reslock);
781 852
782 if (size) 853 if (size)
783 return; 854 return;
784 855
785 maybe_start_thread (); 856 etp_maybe_start_thread (EIO_POOL);
786 857
787 FD_ZERO (&rfd); 858 s_epipe_wait (&respipe);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
791 } 859 }
792} 860}
793 861
794static int poll_cb () 862static int
863poll_cb (void)
795{ 864{
796 dSP;
797 int count = 0;
798 int maxreqs = max_poll_reqs;
799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
807
808 for (;;) 865 for (;;)
809 { 866 {
810 for (;;) 867 int res = eio_poll ();
868
869 if (res > 0)
870 croak (0);
871
872 if (!max_outstanding || max_outstanding > eio_nreqs ())
873 return res;
874
875 poll_wait ();
876 }
877}
878
879static void ecb_cold
880reinit (void)
881{
882 create_respipe ();
883
884 if (eio_init (want_poll, done_poll) < 0)
885 croak ("IO::AIO: unable to initialise eio library");
886}
887
888/*****************************************************************************/
889
890static SV *
891get_cb (SV *cb_sv)
892{
893 SvGETMAGIC (cb_sv);
894 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
895}
896
897static aio_req ecb_noinline
898dreq (SV *callback)
899{
900 SV *cb_cv;
901 aio_req req;
902 int req_pri = next_pri;
903 next_pri = EIO_PRI_DEFAULT;
904
905 cb_cv = get_cb (callback);
906
907 req = calloc (sizeof (*req), 1);
908 if (!req)
909 croak ("out of memory during eio_req allocation");
910
911 req->callback = SvREFCNT_inc (cb_cv);
912 req->pri = req_pri;
913
914 return req;
915}
916
917#define dREQ \
918 aio_req req = dreq (callback); \
919
920#define REQ_SEND \
921 PUTBACK; \
922 req_submit (req); \
923 SPAGAIN; \
924 \
925 if (GIMME_V != G_VOID) \
926 XPUSHs (req_sv (req, aio_req_stash));
927
928ecb_inline void
929req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
930{
931 if (expect_false (SvROK (path)))
932 {
933 SV *rv = SvRV (path);
934 SV *wdob;
935
936 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
811 { 937 {
812 maybe_start_thread (); 938 path = AvARRAY (rv)[1];
939 wdob = AvARRAY (rv)[0];
813 940
814 X_LOCK (reslock); 941 if (SvOK (wdob))
815 req = reqq_shift (&res_queue);
816
817 if (req)
818 { 942 {
819 --npending; 943 *wd = SvAIO_WD (wdob);
820 944 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
821 if (!res_queue.size)
822 {
823 /* read any signals sent by the worker threads */
824 char buf [4];
825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 } 945 }
842 else 946 else
843 { 947 *wd = EIO_INVALID_WD;
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0);
849 }
850
851 count++;
852 }
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
865 }
866 } 948 }
949 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
950 {
951 *wd = (aio_wd)(long)SvIVX (rv);
952 *wdsv = SvREFCNT_inc_NN (rv);
953 *ptr = ".";
954 return; /* path set to "." */
955 }
956 else
957 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
958 }
867 959
868 if (nreqs <= max_outstanding) 960 *pathsv = newSVsv (path);
961 *ptr = SvPVbyte_nolen (*pathsv);
962}
963
964static void ecb_noinline
965req_set_path1 (aio_req req, SV *path)
966{
967 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
968}
969
970static void ecb_noinline
971req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
972{
973 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
974
975 switch (SvTYPE (rv))
976 {
977 case SVt_PVIO:
978 case SVt_PVLV:
979 case SVt_PVGV:
980 req->type = type_fh;
981 req->sv1 = newSVsv (fh_or_path);
982 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
869 break; 983 break;
870 984
871 poll_wait (); 985 default:
872 986 req->type = type_path;
873 ++maxreqs; 987 req_set_path1 (req, fh_or_path);
988 break;
874 } 989 }
875
876 unblock_sig ();
877 return count;
878} 990}
879 991
880/*****************************************************************************/ 992/*****************************************************************************/
881/* work around various missing functions */
882 993
883#if !HAVE_PREADWRITE 994static void
884# define pread aio_pread 995ts_set (struct timespec *ts, NV value)
885# define pwrite aio_pwrite
886
887/*
888 * make our pread/pwrite safe against themselves, but not against
889 * normal read/write by using a mutex. slows down execution a lot,
890 * but that's your problem, not mine.
891 */
892static mutex_t preadwritelock = X_MUTEX_INIT;
893
894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
895{ 996{
896 ssize_t res; 997 ts->tv_sec = value;
897 off_t ooffset; 998 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
898
899 X_LOCK (preadwritelock);
900 ooffset = lseek (fd, 0, SEEK_CUR);
901 lseek (fd, offset, SEEK_SET);
902 res = read (fd, buf, count);
903 lseek (fd, ooffset, SEEK_SET);
904 X_UNLOCK (preadwritelock);
905
906 return res;
907} 999}
908 1000
909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1001static NV
1002ts_get (const struct timespec *ts)
910{ 1003{
911 ssize_t res; 1004 return ts->tv_sec + ts->tv_nsec * 1e-9;
912 off_t ooffset;
913
914 X_LOCK (preadwritelock);
915 ooffset = lseek (fd, 0, SEEK_CUR);
916 lseek (fd, offset, SEEK_SET);
917 res = write (fd, buf, count);
918 lseek (fd, offset, SEEK_SET);
919 X_UNLOCK (preadwritelock);
920
921 return res;
922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
951#endif
952
953#if !HAVE_FDATASYNC
954# define fdatasync fsync
955#endif
956
957#if !HAVE_READAHEAD
958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
959
960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
961{
962 size_t todo = count;
963 dBUF;
964
965 while (todo > 0)
966 {
967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
968
969 pread (fd, aio_buf, len, offset);
970 offset += len;
971 todo -= len;
972 }
973
974 errno = 0;
975 return count;
976}
977
978#endif
979
980#if !HAVE_READDIR_R
981# define readdir_r aio_readdir_r
982
983static mutex_t readdirlock = X_MUTEX_INIT;
984
985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
986{
987 X_DIRENT *e;
988 int errorno;
989
990 X_LOCK (readdirlock);
991
992 e = readdir (dirp);
993 errorno = errno;
994
995 if (e)
996 {
997 *res = ent;
998 strcpy (ent->d_name, e->d_name);
999 }
1000 else
1001 *res = 0;
1002
1003 X_UNLOCK (readdirlock);
1004
1005 errno = errorno;
1006 return e ? 0 : -1;
1007}
1008#endif
1009
1010/* sendfile always needs emulation */
1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1012{
1013 ssize_t res;
1014
1015 if (!count)
1016 return 0;
1017
1018#if HAVE_SENDFILE
1019# if __linux
1020 res = sendfile (ofd, ifd, &offset, count);
1021
1022# elif __freebsd
1023 /*
1024 * Of course, the freebsd sendfile is a dire hack with no thoughts
1025 * wasted on making it similar to other I/O functions.
1026 */
1027 {
1028 off_t sbytes;
1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1030
1031 if (res < 0 && sbytes)
1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1033 res = sbytes;
1034 }
1035
1036# elif __hpux
1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
1038
1039# elif __solaris
1040 {
1041 struct sendfilevec vec;
1042 size_t sbytes;
1043
1044 vec.sfv_fd = ifd;
1045 vec.sfv_flag = 0;
1046 vec.sfv_off = offset;
1047 vec.sfv_len = count;
1048
1049 res = sendfilev (ofd, &vec, 1, &sbytes);
1050
1051 if (res < 0 && sbytes)
1052 res = sbytes;
1053 }
1054
1055# endif
1056#else
1057 res = -1;
1058 errno = ENOSYS;
1059#endif
1060
1061 if (res < 0
1062 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1063#if __solaris
1064 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1065#endif
1066 )
1067 )
1068 {
1069 /* emulate sendfile. this is a major pain in the ass */
1070 dBUF;
1071
1072 res = 0;
1073
1074 while (count)
1075 {
1076 ssize_t cnt;
1077
1078 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1079
1080 if (cnt <= 0)
1081 {
1082 if (cnt && !res) res = -1;
1083 break;
1084 }
1085
1086 cnt = write (ofd, aio_buf, cnt);
1087
1088 if (cnt <= 0)
1089 {
1090 if (cnt && !res) res = -1;
1091 break;
1092 }
1093
1094 offset += cnt;
1095 res += cnt;
1096 count -= cnt;
1097 }
1098 }
1099
1100 return res;
1101}
1102
1103/* read a full directory */
1104static void scandir_ (aio_req req, worker *self)
1105{
1106 DIR *dirp;
1107 union
1108 {
1109 X_DIRENT d;
1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1111 } *u;
1112 X_DIRENT *entp;
1113 char *name, *names;
1114 int memlen = 4096;
1115 int memofs = 0;
1116 int res = 0;
1117
1118 X_LOCK (wrklock);
1119 self->dirp = dirp = opendir (req->ptr1);
1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
1124
1125 if (dirp && u && names)
1126 for (;;)
1127 {
1128 errno = 0;
1129 readdir_r (dirp, &u->d, &entp);
1130
1131 if (!entp)
1132 break;
1133
1134 name = entp->d_name;
1135
1136 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1137 {
1138 int len = strlen (name) + 1;
1139
1140 res++;
1141
1142 while (memofs + len > memlen)
1143 {
1144 memlen *= 2;
1145 X_LOCK (wrklock);
1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
1149 if (!names)
1150 break;
1151 }
1152
1153 memcpy (names + memofs, name, len);
1154 memofs += len;
1155 }
1156 }
1157
1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162} 1005}
1163 1006
1164/*****************************************************************************/ 1007/*****************************************************************************/
1165 1008
1166X_THREAD_PROC (aio_proc) 1009XS(boot_IO__AIO) ecb_cold;
1167{
1168 {//D
1169 aio_req req;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172 1010
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
1177 {
1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1179
1180 X_LOCK (reqlock);
1181
1182 for (;;)
1183 {
1184 self->req = req = reqq_shift (&req_queue);
1185
1186 if (req)
1187 break;
1188
1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
1210 }
1211
1212 --nready;
1213
1214 X_UNLOCK (reqlock);
1215
1216 errno = 0; /* strictly unnecessary */
1217
1218 if (!(req->flags & FLAG_CANCELLED))
1219 switch (req->type)
1220 {
1221 case REQ_READ: req->result = req->offs >= 0
1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1227
1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1230
1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1243 case REQ_CLOSE: req->result = close (req->int1); break;
1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1252
1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1255 case REQ_READDIR: scandir_ (req, self); break;
1256
1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1261 {
1262 struct timeval tv;
1263
1264 tv.tv_sec = req->nv1;
1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1266
1267 req->result = select (0, 0, 0, 0, &tv);
1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
1295
1296 case REQ_GROUP:
1297 case REQ_NOP:
1298 break;
1299
1300 case REQ_QUIT:
1301 goto quit;
1302
1303 default:
1304 req->result = -1;
1305 break;
1306 }
1307
1308 req->errorno = errno;
1309
1310 X_LOCK (reslock);
1311
1312 ++npending;
1313
1314 if (!reqq_push (&res_queue, req))
1315 {
1316 /* write a dummy byte to the pipe so fh becomes ready */
1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1318
1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
1328 }
1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
1334
1335 return 0;
1336 }//D
1337}
1338
1339/*****************************************************************************/
1340
1341static void atfork_prepare (void)
1342{
1343 X_LOCK (wrklock);
1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
1346#if !HAVE_PREADWRITE
1347 X_LOCK (preadwritelock);
1348#endif
1349#if !HAVE_READDIR_R
1350 X_LOCK (readdirlock);
1351#endif
1352}
1353
1354static void atfork_parent (void)
1355{
1356#if !HAVE_READDIR_R
1357 X_UNLOCK (readdirlock);
1358#endif
1359#if !HAVE_PREADWRITE
1360 X_UNLOCK (preadwritelock);
1361#endif
1362 X_UNLOCK (reslock);
1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
1365}
1366
1367static void atfork_child (void)
1368{
1369 aio_req prv;
1370
1371 while (prv = reqq_shift (&req_queue))
1372 req_destroy (prv);
1373
1374 while (prv = reqq_shift (&res_queue))
1375 req_destroy (prv);
1376
1377 while (wrk_first.next != &wrk_first)
1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
1394 create_respipe ();
1395
1396 atfork_parent ();
1397}
1398
1399#define dREQ \
1400 aio_req req; \
1401 int req_pri = next_pri; \
1402 next_pri = DEFAULT_PRI + PRI_BIAS; \
1403 \
1404 if (SvOK (callback) && !SvROK (callback)) \
1405 croak ("callback must be undef or of reference type"); \
1406 \
1407 Newz (0, req, 1, aio_cb); \
1408 if (!req) \
1409 croak ("out of memory during aio_req allocation"); \
1410 \
1411 req->callback = newSVsv (callback); \
1412 req->pri = req_pri
1413
1414#define REQ_SEND \
1415 req_send (req); \
1416 \
1417 if (GIMME_V != G_VOID) \
1418 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1419
1420MODULE = IO::AIO PACKAGE = IO::AIO 1011MODULE = IO::AIO PACKAGE = IO::AIO
1421 1012
1422PROTOTYPES: ENABLE 1013PROTOTYPES: ENABLE
1423 1014
1424BOOT: 1015BOOT:
1425{ 1016{
1017 static const struct {
1018 const char *name;
1019 IV iv;
1020 } *civ, const_iv[] = {
1021# define const_niv(name, value) { # name, (IV) value },
1022# define const_iv(name) { # name, (IV) name },
1023# define const_eio(name) { # name, (IV) EIO_ ## name },
1024
1025 /* you have to re-run ./gendef0 after adding/removing any constants here */
1026 /* the first block can be undef if missing */
1027 const_iv (ENOSYS)
1028 const_iv (EXDEV)
1029 const_iv (EBADR)
1030
1031 /* for lseek */
1032 const_iv (SEEK_DATA)
1033 const_iv (SEEK_HOLE)
1034
1035 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1036 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1037 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1038 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1039 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1040 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1041
1042 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1043 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1044 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1045 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1046 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1047
1048 /* the second block will be 0 when missing */
1049 const_iv (O_ACCMODE)
1050
1051 const_iv (O_RDONLY)
1052 const_iv (O_WRONLY)
1053 const_iv (O_RDWR)
1054 const_iv (O_CREAT)
1055 const_iv (O_TRUNC)
1056 const_iv (O_EXCL)
1057 const_iv (O_APPEND)
1058
1059 const_iv (O_ASYNC)
1060 const_iv (O_DIRECT)
1061 const_iv (O_NOATIME)
1062
1063 const_iv (O_CLOEXEC)
1064 const_iv (O_NOCTTY)
1065 const_iv (O_NOFOLLOW)
1066 const_iv (O_NONBLOCK)
1067 const_iv (O_EXEC)
1068 const_iv (O_SEARCH)
1069 const_iv (O_DIRECTORY)
1070 const_iv (O_DSYNC)
1071 const_iv (O_RSYNC)
1072 const_iv (O_SYNC)
1073 const_iv (O_PATH)
1074 const_iv (O_TMPFILE)
1075 const_iv (O_TTY_INIT)
1076
1077 const_iv (S_IFIFO)
1078 const_iv (S_IFCHR)
1079 const_iv (S_IFBLK)
1080 const_iv (S_IFLNK)
1081 const_iv (S_IFREG)
1082 const_iv (S_IFDIR)
1083 const_iv (S_IFWHT)
1084 const_iv (S_IFSOCK)
1085 const_iv (S_IFMT)
1086
1087 const_iv (ST_RDONLY)
1088 const_iv (ST_NOSUID)
1089 const_iv (ST_NODEV)
1090 const_iv (ST_NOEXEC)
1091 const_iv (ST_SYNCHRONOUS)
1092 const_iv (ST_MANDLOCK)
1093 const_iv (ST_WRITE)
1094 const_iv (ST_APPEND)
1095 const_iv (ST_IMMUTABLE)
1096 const_iv (ST_NOATIME)
1097 const_iv (ST_NODIRATIME)
1098 const_iv (ST_RELATIME)
1099
1100 const_iv (PROT_NONE)
1101 const_iv (PROT_EXEC)
1102 const_iv (PROT_READ)
1103 const_iv (PROT_WRITE)
1104
1105 const_iv (MAP_PRIVATE)
1106 const_iv (MAP_SHARED)
1107 const_iv (MAP_FIXED)
1108 const_iv (MAP_ANONYMOUS)
1109
1110 /* linuxish */
1111 const_iv (MAP_LOCKED)
1112 const_iv (MAP_NORESERVE)
1113 const_iv (MAP_POPULATE)
1114 const_iv (MAP_NONBLOCK)
1115 const_iv (MAP_GROWSDOWN)
1116 const_iv (MAP_32BIT)
1117 const_iv (MAP_HUGETLB)
1118 const_iv (MAP_STACK)
1119
1120 const_iv (MREMAP_MAYMOVE)
1121 const_iv (MREMAP_FIXED)
1122
1123 const_iv (F_DUPFD_CLOEXEC)
1124
1125 const_iv (F_OFD_GETLK)
1126 const_iv (F_OFD_SETLK)
1127 const_iv (F_OFD_GETLKW)
1128
1129 const_iv (FIFREEZE)
1130 const_iv (FITHAW)
1131 const_iv (FITRIM)
1132 const_iv (FICLONE)
1133 const_iv (FICLONERANGE)
1134 const_iv (FIDEDUPERANGE)
1135
1136 const_iv (FS_IOC_GETFLAGS)
1137 const_iv (FS_IOC_SETFLAGS)
1138 const_iv (FS_IOC_GETVERSION)
1139 const_iv (FS_IOC_SETVERSION)
1140 const_iv (FS_IOC_FIEMAP)
1141 const_iv (FS_IOC_FSGETXATTR)
1142 const_iv (FS_IOC_FSSETXATTR)
1143 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1144 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1145 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1146
1147 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1148
1149 const_iv (FS_SECRM_FL)
1150 const_iv (FS_UNRM_FL)
1151 const_iv (FS_COMPR_FL)
1152 const_iv (FS_SYNC_FL)
1153 const_iv (FS_IMMUTABLE_FL)
1154 const_iv (FS_APPEND_FL)
1155 const_iv (FS_NODUMP_FL)
1156 const_iv (FS_NOATIME_FL)
1157 const_iv (FS_DIRTY_FL)
1158 const_iv (FS_COMPRBLK_FL)
1159 const_iv (FS_NOCOMP_FL)
1160 const_iv (FS_ENCRYPT_FL)
1161 const_iv (FS_BTREE_FL)
1162 const_iv (FS_INDEX_FL)
1163 const_iv (FS_JOURNAL_DATA_FL)
1164 const_iv (FS_NOTAIL_FL)
1165 const_iv (FS_DIRSYNC_FL)
1166 const_iv (FS_TOPDIR_FL)
1167 const_iv (FS_FL_USER_MODIFIABLE)
1168
1169 const_iv (FS_XFLAG_REALTIME)
1170 const_iv (FS_XFLAG_PREALLOC)
1171 const_iv (FS_XFLAG_IMMUTABLE)
1172 const_iv (FS_XFLAG_APPEND)
1173 const_iv (FS_XFLAG_SYNC)
1174 const_iv (FS_XFLAG_NOATIME)
1175 const_iv (FS_XFLAG_NODUMP)
1176 const_iv (FS_XFLAG_RTINHERIT)
1177 const_iv (FS_XFLAG_PROJINHERIT)
1178 const_iv (FS_XFLAG_NOSYMLINKS)
1179 const_iv (FS_XFLAG_EXTSIZE)
1180 const_iv (FS_XFLAG_EXTSZINHERIT)
1181 const_iv (FS_XFLAG_NODEFRAG)
1182 const_iv (FS_XFLAG_FILESTREAM)
1183 const_iv (FS_XFLAG_DAX)
1184 const_iv (FS_XFLAG_HASATTR)
1185
1186 const_iv (FIEMAP_FLAG_SYNC)
1187 const_iv (FIEMAP_FLAG_XATTR)
1188 const_iv (FIEMAP_FLAGS_COMPAT)
1189 const_iv (FIEMAP_EXTENT_LAST)
1190 const_iv (FIEMAP_EXTENT_UNKNOWN)
1191 const_iv (FIEMAP_EXTENT_DELALLOC)
1192 const_iv (FIEMAP_EXTENT_ENCODED)
1193 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1194 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1195 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1196 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1197 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1198 const_iv (FIEMAP_EXTENT_MERGED)
1199 const_iv (FIEMAP_EXTENT_SHARED)
1200
1201 const_iv (SPLICE_F_MOVE)
1202 const_iv (SPLICE_F_NONBLOCK)
1203 const_iv (SPLICE_F_MORE)
1204 const_iv (SPLICE_F_GIFT)
1205
1206 const_iv (EFD_CLOEXEC)
1207 const_iv (EFD_NONBLOCK)
1208 const_iv (EFD_SEMAPHORE)
1209
1210 const_iv (CLOCK_REALTIME)
1211 const_iv (CLOCK_MONOTONIC)
1212 const_iv (CLOCK_BOOTTIME)
1213 const_iv (CLOCK_REALTIME_ALARM)
1214 const_iv (CLOCK_BOOTTIME_ALARM)
1215
1216 const_iv (TFD_NONBLOCK)
1217 const_iv (TFD_CLOEXEC)
1218
1219 const_iv (TFD_TIMER_ABSTIME)
1220 const_iv (TFD_TIMER_CANCEL_ON_SET)
1221
1222 /* these are libeio constants, and are independent of gendef0 */
1223 const_eio (SEEK_SET)
1224 const_eio (SEEK_CUR)
1225 const_eio (SEEK_END)
1226
1227 const_eio (MCL_FUTURE)
1228 const_eio (MCL_CURRENT)
1229
1230 const_eio (MS_ASYNC)
1231 const_eio (MS_INVALIDATE)
1232 const_eio (MS_SYNC)
1233
1234 const_eio (MT_MODIFY)
1235
1236 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1237 const_eio (SYNC_FILE_RANGE_WRITE)
1238 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1239
1240 const_eio (FALLOC_FL_KEEP_SIZE)
1241 const_eio (FALLOC_FL_PUNCH_HOLE)
1242 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1243 const_eio (FALLOC_FL_ZERO_RANGE)
1244 const_eio (FALLOC_FL_INSERT_RANGE)
1245 const_eio (FALLOC_FL_UNSHARE_RANGE)
1246
1247 const_eio (RENAME_NOREPLACE)
1248 const_eio (RENAME_EXCHANGE)
1249 const_eio (RENAME_WHITEOUT)
1250
1251 const_eio (READDIR_DENTS)
1252 const_eio (READDIR_DIRS_FIRST)
1253 const_eio (READDIR_STAT_ORDER)
1254 const_eio (READDIR_FOUND_UNKNOWN)
1255
1256 const_eio (DT_UNKNOWN)
1257 const_eio (DT_FIFO)
1258 const_eio (DT_CHR)
1259 const_eio (DT_DIR)
1260 const_eio (DT_BLK)
1261 const_eio (DT_REG)
1262 const_eio (DT_LNK)
1263 const_eio (DT_SOCK)
1264 const_eio (DT_WHT)
1265 };
1266
1426 HV *stash = gv_stashpv ("IO::AIO", 1); 1267 aio_stash = gv_stashpv ("IO::AIO" , 1);
1268 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1269 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1270 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1427 1271
1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1272 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1273 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440 1274
1441 X_COND_CHECK (reqwait); 1275 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446 1276
1447 create_respipe (); 1277 reinit ();
1448
1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1450} 1278}
1451 1279
1452void 1280void
1281reinit ()
1282 PROTOTYPE:
1283
1284void
1453max_poll_reqs (int nreqs) 1285max_poll_reqs (unsigned int nreqs)
1454 PROTOTYPE: $ 1286 PROTOTYPE: $
1455 CODE: 1287 CODE:
1456 max_poll_reqs = nreqs; 1288 eio_set_max_poll_reqs (nreqs);
1457 1289
1458void 1290void
1459max_poll_time (double nseconds) 1291max_poll_time (double nseconds)
1460 PROTOTYPE: $ 1292 PROTOTYPE: $
1461 CODE: 1293 CODE:
1462 max_poll_time = nseconds * AIO_TICKS; 1294 eio_set_max_poll_time (nseconds);
1463 1295
1464void 1296void
1465min_parallel (int nthreads) 1297min_parallel (unsigned int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $ 1298 PROTOTYPE: $
1475 CODE: 1299 CODE:
1476 set_max_idle (nthreads); 1300 eio_set_min_parallel (nthreads);
1477 1301
1478int 1302void
1479max_outstanding (int maxreqs) 1303max_parallel (unsigned int nthreads)
1480 PROTOTYPE: $ 1304 PROTOTYPE: $
1481 CODE: 1305 CODE:
1482 RETVAL = max_outstanding; 1306 eio_set_max_parallel (nthreads);
1307
1308void
1309max_idle (unsigned int nthreads)
1310 PROTOTYPE: $
1311 CODE:
1312 eio_set_max_idle (nthreads);
1313
1314void
1315idle_timeout (unsigned int seconds)
1316 PROTOTYPE: $
1317 CODE:
1318 eio_set_idle_timeout (seconds);
1319
1320void
1321max_outstanding (unsigned int maxreqs)
1322 PROTOTYPE: $
1323 CODE:
1483 max_outstanding = maxreqs; 1324 max_outstanding = maxreqs;
1484 OUTPUT:
1485 RETVAL
1486 1325
1487void 1326void
1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1327aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1489 PROTOTYPE: $$$;$
1490 PPCODE: 1328 PPCODE:
1491{ 1329{
1492 dREQ; 1330 dREQ;
1493 1331
1332 req->type = EIO_WD_OPEN;
1333 req_set_path1 (req, pathname);
1334
1335 REQ_SEND;
1336}
1337
1338void
1339aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1340 PPCODE:
1341{
1342 dREQ;
1343
1494 req->type = REQ_OPEN; 1344 req->type = EIO_OPEN;
1495 req->sv1 = newSVsv (pathname); 1345 req_set_path1 (req, pathname);
1496 req->ptr1 = SvPVbyte_nolen (req->sv1);
1497 req->int1 = flags; 1346 req->int1 = flags;
1498 req->mode = mode; 1347 req->int2 = mode;
1499 1348
1500 REQ_SEND; 1349 REQ_SEND;
1501} 1350}
1502 1351
1503void 1352void
1504aio_close (SV *fh, SV *callback=&PL_sv_undef) 1353aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1505 PROTOTYPE: $;$
1506 ALIAS: 1354 ALIAS:
1507 aio_close = REQ_CLOSE
1508 aio_fsync = REQ_FSYNC 1355 aio_fsync = EIO_FSYNC
1509 aio_fdatasync = REQ_FDATASYNC 1356 aio_fdatasync = EIO_FDATASYNC
1357 aio_syncfs = EIO_SYNCFS
1510 PPCODE: 1358 PPCODE:
1511{ 1359{
1360 int fd = s_fileno_croak (fh, 0);
1512 dREQ; 1361 dREQ;
1513 1362
1514 req->type = ix; 1363 req->type = ix;
1515 req->sv1 = newSVsv (fh); 1364 req->sv1 = newSVsv (fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1365 req->int1 = fd;
1517 1366
1518 REQ_SEND (req); 1367 REQ_SEND;
1519} 1368}
1520 1369
1521void 1370void
1371aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1372 PPCODE:
1373{
1374 int fd = s_fileno_croak (fh, 0);
1375 dREQ;
1376
1377 req->type = EIO_SYNC_FILE_RANGE;
1378 req->sv1 = newSVsv (fh);
1379 req->int1 = fd;
1380 req->offs = offset;
1381 req->size = nbytes;
1382 req->int2 = flags;
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1389 PPCODE:
1390{
1391 int fd = s_fileno_croak (fh, 0);
1392 dREQ;
1393
1394 req->type = EIO_FALLOCATE;
1395 req->sv1 = newSVsv (fh);
1396 req->int1 = fd;
1397 req->int2 = mode;
1398 req->offs = offset;
1399 req->size = len;
1400
1401 REQ_SEND;
1402}
1403
1404void
1405aio_close (SV *fh, SV *callback = &PL_sv_undef)
1406 PPCODE:
1407{
1408 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1409 int fd = s_fileno_croak (fh, 0);
1410 dREQ;
1411
1412 if (expect_false (close_fd < 0))
1413 {
1414 int pipefd [2];
1415
1416 if (
1417#ifdef _WIN32
1418 _pipe (pipefd, 1, _O_BINARY) < 0
1419#else
1420 pipe (pipefd) < 0
1421 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1422#endif
1423 || close (pipefd [1]) < 0
1424 )
1425 abort (); /*D*/
1426
1427 close_fd = pipefd [0];
1428 }
1429
1430 req->type = EIO_DUP2;
1431 req->int1 = close_fd;
1432 req->sv2 = newSVsv (fh);
1433 req->int2 = fd;
1434
1435 REQ_SEND;
1436}
1437
1438void
1439aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1440 PPCODE:
1441{
1442 int fd = s_fileno_croak (fh, 0);
1443 dREQ;
1444
1445 req->type = EIO_SEEK;
1446 req->sv1 = newSVsv (fh);
1447 req->int1 = fd;
1448 req->offs = SvVAL64 (offset);
1449 req->int2 = whence;
1450
1451 REQ_SEND;
1452}
1453
1454void
1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1455aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1523 ALIAS: 1456 ALIAS:
1524 aio_read = REQ_READ 1457 aio_read = EIO_READ
1525 aio_write = REQ_WRITE 1458 aio_write = EIO_WRITE
1526 PROTOTYPE: $$$$$;$
1527 PPCODE: 1459 PPCODE:
1528{ 1460{
1529 STRLEN svlen; 1461 STRLEN svlen;
1462 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1530 char *svptr = SvPVbyte (data, svlen); 1463 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length); 1464 UV len = SvUV (length);
1532 1465
1533 SvUPGRADE (data, SVt_PV);
1534 SvPOK_on (data);
1535
1536 if (dataoffset < 0) 1466 if (dataoffset < 0)
1537 dataoffset += svlen; 1467 dataoffset += svlen;
1538 1468
1539 if (dataoffset < 0 || dataoffset > svlen) 1469 if (dataoffset < 0 || dataoffset > svlen)
1540 croak ("dataoffset outside of data scalar"); 1470 croak ("dataoffset outside of data scalar");
1541 1471
1542 if (ix == REQ_WRITE) 1472 if (ix == EIO_WRITE)
1543 { 1473 {
1544 /* write: check length and adjust. */ 1474 /* write: check length and adjust. */
1545 if (!SvOK (length) || len + dataoffset > svlen) 1475 if (!SvOK (length) || len + dataoffset > svlen)
1546 len = svlen - dataoffset; 1476 len = svlen - dataoffset;
1547 } 1477 }
1548 else 1478 else
1549 { 1479 {
1550 /* read: grow scalar as necessary */ 1480 /* read: check type and grow scalar as necessary */
1481 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1551 svptr = SvGROW (data, len + dataoffset + 1); 1482 svptr = sv_grow (data, len + dataoffset + 1);
1483 else if (SvCUR (data) < len + dataoffset)
1484 croak ("length + dataoffset outside of scalar, and cannot grow");
1552 } 1485 }
1553
1554 if (len < 0)
1555 croak ("length must not be negative");
1556 1486
1557 { 1487 {
1558 dREQ; 1488 dREQ;
1559 1489
1560 req->type = ix; 1490 req->type = ix;
1561 req->sv1 = newSVsv (fh); 1491 req->sv1 = newSVsv (fh);
1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1492 req->int1 = fd;
1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1493 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1565 req->size = len; 1494 req->size = len;
1566 req->sv2 = SvREFCNT_inc (data); 1495 req->sv2 = SvREFCNT_inc (data);
1567 req->ptr1 = (char *)svptr + dataoffset; 1496 req->ptr2 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset; 1497 req->stroffset = dataoffset;
1569 1498
1570 if (!SvREADONLY (data)) 1499 if (!SvREADONLY (data))
1571 { 1500 {
1572 SvREADONLY_on (data); 1501 SvREADONLY_on (data);
… …
1576 REQ_SEND; 1505 REQ_SEND;
1577 } 1506 }
1578} 1507}
1579 1508
1580void 1509void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1510aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1582 PROTOTYPE: $$;$ 1511 ALIAS:
1512 aio_ioctl = EIO_IOCTL
1513 aio_fcntl = EIO_FCNTL
1583 PPCODE: 1514 PPCODE:
1584{ 1515{
1585 SV *data; 1516 int fd = s_fileno_croak (fh, 0);
1586 dREQ; 1517 char *svptr;
1587 1518
1588 data = newSV (NAME_MAX); 1519 if (SvPOK (arg) || !SvNIOK (arg))
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK;
1592 req->sv1 = newSVsv (path);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596
1597 REQ_SEND;
1598}
1599
1600void
1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1602 PROTOTYPE: $$$$;$
1603 PPCODE:
1604{
1605 dREQ;
1606
1607 req->type = REQ_SENDFILE;
1608 req->sv1 = newSVsv (out_fh);
1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1610 req->sv2 = newSVsv (in_fh);
1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1612 req->offs = SvVAL64 (in_offset);
1613 req->size = length;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1620 PROTOTYPE: $$$;$
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->type = REQ_READAHEAD;
1626 req->sv1 = newSVsv (fh);
1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1628 req->offs = SvVAL64 (offset);
1629 req->size = length;
1630
1631 REQ_SEND;
1632}
1633
1634void
1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1636 ALIAS:
1637 aio_stat = REQ_STAT
1638 aio_lstat = REQ_LSTAT
1639 PPCODE:
1640{
1641 dREQ;
1642
1643 req->ptr2 = malloc (sizeof (Stat_t));
1644 if (!req->ptr2)
1645 { 1520 {
1646 req_destroy (req); 1521 STRLEN svlen;
1647 croak ("out of memory during aio_stat statdata allocation"); 1522 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1648 } 1523#ifdef IOCPARM_LEN
1524 STRLEN need = IOCPARM_LEN (request);
1525#else
1526 STRLEN need = 256;
1527#endif
1649 1528
1650 req->flags |= FLAG_PTR2_FREE; 1529 if (svlen < need)
1651 req->sv1 = newSVsv (fh_or_path); 1530 svptr = SvGROW (arg, need);
1652
1653 if (SvPOK (fh_or_path))
1654 {
1655 req->type = ix;
1656 req->ptr1 = SvPVbyte_nolen (req->sv1);
1657 } 1531 }
1658 else 1532 else
1533 svptr = (char *)SvIV (arg);
1534
1659 { 1535 {
1536 dREQ;
1537
1660 req->type = REQ_FSTAT; 1538 req->type = ix;
1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1539 req->sv1 = newSVsv (fh);
1540 req->int1 = fd;
1541 req->int2 = (long)request;
1542 req->sv2 = SvREFCNT_inc (arg);
1543 req->ptr2 = svptr;
1544
1545 REQ_SEND;
1662 } 1546 }
1547}
1548
1549void
1550aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1551 ALIAS:
1552 aio_readlink = EIO_READLINK
1553 aio_realpath = EIO_REALPATH
1554 PPCODE:
1555{
1556 dREQ;
1557
1558 req->type = ix;
1559 req_set_path1 (req, pathname);
1663 1560
1664 REQ_SEND; 1561 REQ_SEND;
1665} 1562}
1666 1563
1667void 1564void
1565aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1566 PPCODE:
1567{
1568 int ifd = s_fileno_croak (in_fh , 0);
1569 int ofd = s_fileno_croak (out_fh, 1);
1570 dREQ;
1571
1572 req->type = EIO_SENDFILE;
1573 req->sv1 = newSVsv (out_fh);
1574 req->int1 = ofd;
1575 req->sv2 = newSVsv (in_fh);
1576 req->int2 = ifd;
1577 req->offs = in_offset;
1578 req->size = length;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 int fd = s_fileno_croak (fh, 0);
1588 dREQ;
1589
1590 req->type = EIO_READAHEAD;
1591 req->sv1 = newSVsv (fh);
1592 req->int1 = fd;
1593 req->offs = offset;
1594 req->size = length;
1595
1596 REQ_SEND;
1597}
1598
1599void
1600aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1601 ALIAS:
1602 aio_stat = EIO_STAT
1603 aio_lstat = EIO_LSTAT
1604 aio_statvfs = EIO_STATVFS
1605 PPCODE:
1606{
1607 dREQ;
1608
1609 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1610
1611 REQ_SEND;
1612}
1613
1614UV
1615major (UV dev)
1616 ALIAS:
1617 minor = 1
1618 CODE:
1619 RETVAL = ix ? minor (dev) : major (dev);
1620 OUTPUT:
1621 RETVAL
1622
1623UV
1624makedev (UV maj, UV min)
1625 CODE:
1626 RETVAL = makedev (maj, min);
1627 OUTPUT:
1628 RETVAL
1629
1630void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1631aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1669 PPCODE: 1632 PPCODE:
1670{ 1633{
1671 dREQ; 1634 dREQ;
1672 1635
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1636 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1637 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path); 1638 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1676
1677 if (SvPOK (fh_or_path))
1678 {
1679 req->type = REQ_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 }
1682 else
1683 {
1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687 1639
1688 REQ_SEND; 1640 REQ_SEND;
1689} 1641}
1690 1642
1691void 1643void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1644aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1693 PPCODE: 1645 PPCODE:
1694{ 1646{
1695 dREQ; 1647 dREQ;
1696 1648
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1649 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699 1650 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 }
1710 1651
1711 REQ_SEND; 1652 REQ_SEND;
1712} 1653}
1713 1654
1714void 1655void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1656aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1716 PPCODE: 1657 PPCODE:
1717{ 1658{
1718 dREQ; 1659 dREQ;
1719 1660
1720 req->mode = mode; 1661 req->int2 = mode;
1721 req->sv1 = newSVsv (fh_or_path); 1662 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1722
1723 if (SvPOK (fh_or_path))
1724 {
1725 req->type = REQ_CHMOD;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 }
1728 else
1729 {
1730 req->type = REQ_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 }
1733 1663
1734 REQ_SEND; 1664 REQ_SEND;
1735} 1665}
1736 1666
1737void 1667void
1738aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1668aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1739 PPCODE: 1669 PPCODE:
1740{ 1670{
1741 dREQ; 1671 dREQ;
1742 1672
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1673 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1674 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path); 1675 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1746
1747 if (SvPOK (fh_or_path))
1748 {
1749 req->type = REQ_CHOWN;
1750 req->ptr1 = SvPVbyte_nolen (req->sv1);
1751 }
1752 else
1753 {
1754 req->type = REQ_FCHOWN;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1756 }
1757 1676
1758 REQ_SEND; 1677 REQ_SEND;
1759} 1678}
1760 1679
1761void 1680void
1681aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 dREQ;
1685
1686 req->type = EIO_READDIR;
1687 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1688
1689 if (flags & EIO_READDIR_DENTS)
1690 req->int1 |= EIO_READDIR_CUSTOM2;
1691
1692 req_set_path1 (req, pathname);
1693
1694 REQ_SEND;
1695}
1696
1697void
1698aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1699 PPCODE:
1700{
1701 dREQ;
1702
1703 req->type = EIO_MKDIR;
1704 req->int2 = mode;
1705 req_set_path1 (req, pathname);
1706
1707 REQ_SEND;
1708}
1709
1710void
1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1711aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1763 ALIAS: 1712 ALIAS:
1764 aio_unlink = REQ_UNLINK 1713 aio_unlink = EIO_UNLINK
1765 aio_rmdir = REQ_RMDIR 1714 aio_rmdir = EIO_RMDIR
1766 aio_readdir = REQ_READDIR 1715 aio_readdir = EIO_READDIR
1767 PPCODE: 1716 PPCODE:
1768{ 1717{
1769 dREQ; 1718 dREQ;
1770 1719
1771 req->type = ix; 1720 req->type = ix;
1772 req->sv1 = newSVsv (pathname); 1721 req_set_path1 (req, pathname);
1773 req->ptr1 = SvPVbyte_nolen (req->sv1);
1774 1722
1775 REQ_SEND; 1723 REQ_SEND;
1776} 1724}
1777 1725
1778void 1726void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1727aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1728 ALIAS:
1729 aio_link = EIO_LINK
1730 aio_symlink = EIO_SYMLINK
1731 aio_rename = EIO_RENAME
1780 PPCODE: 1732 PPCODE:
1781{ 1733{
1782 dREQ; 1734 eio_wd wd2 = 0;
1783
1784 req->type = REQ_MKDIR;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode;
1788
1789 REQ_SEND;
1790}
1791
1792void
1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1794 ALIAS:
1795 aio_link = REQ_LINK
1796 aio_symlink = REQ_SYMLINK
1797 aio_rename = REQ_RENAME
1798 PPCODE:
1799{
1800 dREQ; 1735 dREQ;
1801 1736
1802 req->type = ix; 1737 req->type = ix;
1803 req->sv2 = newSVsv (oldpath); 1738 req_set_path1 (req, oldpath);
1804 req->ptr2 = SvPVbyte_nolen (req->sv2); 1739 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1805 req->sv1 = newSVsv (newpath); 1740 req->int3 = (long)wd2;
1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1807 1741
1808 REQ_SEND; 1742 REQ_SEND;
1809} 1743}
1810 1744
1811void 1745void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1746aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1813 PPCODE: 1747 PPCODE:
1814{ 1748{
1749 eio_wd wd2 = 0;
1815 dREQ; 1750 dREQ;
1816 1751
1817 req->type = REQ_MKNOD; 1752 req->type = EIO_RENAME;
1818 req->sv1 = newSVsv (pathname); 1753 req_set_path1 (req, oldpath);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1); 1754 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1820 req->mode = (mode_t)mode; 1755 req->int2 = flags;
1821 req->offs = dev; 1756 req->int3 = (long)wd2;
1822 1757
1823 REQ_SEND; 1758 REQ_SEND;
1824} 1759}
1825 1760
1826void 1761void
1827aio_busy (double delay, SV *callback=&PL_sv_undef) 1762aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1828 PPCODE: 1763 PPCODE:
1829{ 1764{
1830 dREQ; 1765 dREQ;
1766
1767 req->type = EIO_MKNOD;
1768 req->int2 = (mode_t)mode;
1769 req->offs = dev;
1770 req_set_path1 (req, pathname);
1771
1772 REQ_SEND;
1773}
1831 1774
1775void
1776aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1777 ALIAS:
1778 aio_mtouch = EIO_MTOUCH
1779 aio_msync = EIO_MSYNC
1780 PPCODE:
1781{
1782 STRLEN svlen;
1783 char *svptr = SvPVbyte (data, svlen);
1784 UV len = SvUV (length);
1785
1786 if (flags < 0)
1787 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1788
1789 if (offset < 0)
1790 offset += svlen;
1791
1792 if (offset < 0 || offset > svlen)
1793 croak ("offset outside of scalar");
1794
1795 if (!SvOK (length) || len + offset > svlen)
1796 len = svlen - offset;
1797
1798 {
1799 dREQ;
1800
1801 req->type = ix;
1802 req->sv2 = SvREFCNT_inc (data);
1803 req->ptr2 = (char *)svptr + offset;
1804 req->size = len;
1805 req->int1 = flags;
1806
1807 REQ_SEND;
1808 }
1809}
1810
1811void
1812aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1813 PPCODE:
1814{
1815 STRLEN svlen;
1816 char *svptr = SvPVbyte (data, svlen);
1817 UV len = SvUV (length);
1818
1819 if (offset < 0)
1820 offset += svlen;
1821
1822 if (offset < 0 || offset > svlen)
1823 croak ("offset outside of scalar");
1824
1825 if (!SvOK (length) || len + offset > svlen)
1826 len = svlen - offset;
1827
1828 {
1829 dREQ;
1830
1831 req->type = EIO_MLOCK;
1832 req->sv2 = SvREFCNT_inc (data);
1833 req->ptr2 = (char *)svptr + offset;
1834 req->size = len;
1835
1836 REQ_SEND;
1837 }
1838}
1839
1840void
1841aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1842 PPCODE:
1843{
1844 dREQ;
1845
1846 req->type = EIO_MLOCKALL;
1847 req->int1 = flags;
1848
1849 REQ_SEND;
1850}
1851
1852void
1853aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1854 PPCODE:
1855{
1856 int fd = s_fileno_croak (fh, 0);
1857 dREQ;
1858
1859 req->type = EIO_CUSTOM;
1860 req->sv1 = newSVsv (fh);
1861 req->int1 = fd;
1862
1863 req->feed = fiemap;
1864#if HAVE_FIEMAP
1865 /* keep our fingers crossed that the next two types are 64 bit */
1866 req->offs = start;
1867 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1868 req->int2 = flags;
1869 req->int3 = SvOK (count) ? SvIV (count) : -1;
1870#endif
1871
1872 REQ_SEND;
1873}
1874
1875void
1876aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1877 PPCODE:
1878{
1879 char *svptr = 0;
1880
1881 sv_clear_foreign (data);
1882
1883 if (length) /* known length, directly read into scalar */
1884 {
1885 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1886 svptr = sv_grow (data, length + 1);
1887 else if (SvCUR (data) < length)
1888 croak ("length outside of scalar, and cannot grow");
1889 else
1890 svptr = SvPVbyte_nolen (data);
1891 }
1892
1893 {
1894 dREQ;
1895
1896 req->type = EIO_SLURP;
1897 req_set_path1 (req, pathname);
1898 req->offs = offset;
1899 req->size = length;
1900 req->sv2 = SvREFCNT_inc (data);
1901 req->ptr2 = svptr;
1902
1903 if (!SvREADONLY (data))
1904 {
1905 SvREADONLY_on (data);
1906 req->flags |= FLAG_SV2_RO_OFF;
1907 }
1908
1909 REQ_SEND;
1910 }
1911}
1912
1913void
1914aio_busy (double delay, SV *callback = &PL_sv_undef)
1915 PPCODE:
1916{
1917 dREQ;
1918
1832 req->type = REQ_BUSY; 1919 req->type = EIO_BUSY;
1833 req->nv1 = delay < 0. ? 0. : delay; 1920 req->nv1 = delay < 0. ? 0. : delay;
1834 1921
1835 REQ_SEND; 1922 REQ_SEND;
1836} 1923}
1837 1924
1838void 1925void
1839aio_group (SV *callback=&PL_sv_undef) 1926aio_group (SV *callback = &PL_sv_undef)
1840 PROTOTYPE: ;$
1841 PPCODE: 1927 PPCODE:
1842{ 1928{
1843 dREQ; 1929 dREQ;
1844 1930
1845 req->type = REQ_GROUP; 1931 req->type = EIO_GROUP;
1846 1932
1933 PUTBACK;
1847 req_send (req); 1934 req_submit (req);
1935 SPAGAIN;
1936
1848 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1937 XPUSHs (req_sv (req, aio_grp_stash));
1849} 1938}
1850 1939
1851void 1940void
1852aio_nop (SV *callback=&PL_sv_undef) 1941aio_nop (SV *callback = &PL_sv_undef)
1942 ALIAS:
1943 aio_nop = EIO_NOP
1944 aio_sync = EIO_SYNC
1853 PPCODE: 1945 PPCODE:
1854{ 1946{
1855 dREQ; 1947 dREQ;
1856 1948
1857 req->type = REQ_NOP; 1949 req->type = ix;
1858 1950
1859 REQ_SEND; 1951 REQ_SEND;
1860} 1952}
1861 1953
1862int 1954int
1863aioreq_pri (int pri = 0) 1955aioreq_pri (int pri = NO_INIT)
1864 PROTOTYPE: ;$
1865 CODE: 1956 CODE:
1866 RETVAL = next_pri - PRI_BIAS; 1957 RETVAL = next_pri;
1867 if (items > 0) 1958 if (items > 0)
1868 { 1959 {
1869 if (pri < PRI_MIN) pri = PRI_MIN; 1960 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1870 if (pri > PRI_MAX) pri = PRI_MAX; 1961 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1871 next_pri = pri + PRI_BIAS; 1962 next_pri = pri;
1872 } 1963 }
1873 OUTPUT: 1964 OUTPUT:
1874 RETVAL 1965 RETVAL
1875 1966
1876void 1967void
1877aioreq_nice (int nice = 0) 1968aioreq_nice (int nice = 0)
1878 CODE: 1969 CODE:
1879 nice = next_pri - nice; 1970 nice = next_pri - nice;
1880 if (nice < PRI_MIN) nice = PRI_MIN; 1971 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1881 if (nice > PRI_MAX) nice = PRI_MAX; 1972 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1882 next_pri = nice + PRI_BIAS; 1973 next_pri = nice;
1883 1974
1884void 1975void
1885flush () 1976flush ()
1886 PROTOTYPE:
1887 CODE: 1977 CODE:
1888 while (nreqs) 1978 while (eio_nreqs ())
1889 { 1979 {
1890 poll_wait (); 1980 poll_wait ();
1891 poll_cb (); 1981 poll_cb ();
1892 } 1982 }
1893 1983
1894int 1984int
1895poll() 1985poll ()
1896 PROTOTYPE:
1897 CODE: 1986 CODE:
1898 poll_wait (); 1987 poll_wait ();
1899 RETVAL = poll_cb (); 1988 RETVAL = poll_cb ();
1900 OUTPUT: 1989 OUTPUT:
1901 RETVAL 1990 RETVAL
1902 1991
1903int 1992int
1904poll_fileno() 1993poll_fileno ()
1905 PROTOTYPE:
1906 CODE: 1994 CODE:
1907 RETVAL = respipe [0]; 1995 RETVAL = s_epipe_fd (&respipe);
1908 OUTPUT: 1996 OUTPUT:
1909 RETVAL 1997 RETVAL
1910 1998
1911int 1999int
1912poll_cb(...) 2000poll_cb (...)
1913 PROTOTYPE: 2001 PROTOTYPE:
1914 CODE: 2002 CODE:
1915 RETVAL = poll_cb (); 2003 RETVAL = poll_cb ();
1916 OUTPUT: 2004 OUTPUT:
1917 RETVAL 2005 RETVAL
1918 2006
1919void 2007void
1920poll_wait() 2008poll_wait ()
1921 PROTOTYPE:
1922 CODE: 2009 CODE:
1923 poll_wait (); 2010 poll_wait ();
1924 2011
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1961
1962int 2012int
1963nreqs() 2013nreqs ()
1964 PROTOTYPE:
1965 CODE: 2014 CODE:
1966 RETVAL = nreqs; 2015 RETVAL = eio_nreqs ();
1967 OUTPUT: 2016 OUTPUT:
1968 RETVAL 2017 RETVAL
1969 2018
1970int 2019int
1971nready() 2020nready ()
1972 PROTOTYPE:
1973 CODE: 2021 CODE:
1974 RETVAL = get_nready (); 2022 RETVAL = eio_nready ();
1975 OUTPUT: 2023 OUTPUT:
1976 RETVAL 2024 RETVAL
1977 2025
1978int 2026int
1979npending() 2027npending ()
1980 PROTOTYPE:
1981 CODE: 2028 CODE:
1982 RETVAL = get_npending (); 2029 RETVAL = eio_npending ();
1983 OUTPUT: 2030 OUTPUT:
1984 RETVAL 2031 RETVAL
1985 2032
1986int 2033int
1987nthreads() 2034nthreads ()
1988 PROTOTYPE:
1989 CODE: 2035 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2036 RETVAL = eio_nthreads ();
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT: 2037 OUTPUT:
1994 RETVAL 2038 RETVAL
1995 2039
2040int
2041fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2042 CODE:
2043 RETVAL = posix_fadvise (fh, offset, length, advice);
2044 OUTPUT:
2045 RETVAL
2046
2047IV
2048sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2049 CODE:
2050 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2051 OUTPUT:
2052 RETVAL
2053
2054void
2055mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2056 PPCODE:
2057 sv_clear_foreign (scalar);
2058{
2059 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2060 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2061 if (addr == (void *)-1)
2062 XSRETURN_NO;
2063
2064 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2065
2066 if (!(prot & PROT_WRITE))
2067 SvREADONLY_on (scalar);
2068
2069 XSRETURN_YES;
2070}
2071
2072void
2073munmap (SV *scalar)
2074 CODE:
2075 sv_clear_foreign (scalar);
2076
2077SV *
2078mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2079 CODE:
2080{
2081 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2082 void *new;
2083
2084 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2085 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2086
2087 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2088
2089 RETVAL = &PL_sv_no;
2090
2091 if (new != (void *)-1)
2092 {
2093 RETVAL = new == (void *)mg->mg_ptr
2094 ? newSVpvn ("0 but true", 10)
2095 : &PL_sv_yes;
2096
2097 mg->mg_ptr = (char *)new;
2098 mg->mg_obj = (SV *)new_length;
2099
2100 SvPVX (scalar) = mg->mg_ptr;
2101 SvCUR_set (scalar, new_length);
2102 }
2103}
2104 OUTPUT:
2105 RETVAL
2106
2107int
2108madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2109 ALIAS:
2110 mprotect = 1
2111 CODE:
2112{
2113 STRLEN svlen;
2114 void *addr = SvPVbyte (scalar, svlen);
2115 STRLEN len = SvUV (length);
2116
2117 if (offset < 0)
2118 offset += svlen;
2119
2120 if (offset < 0 || offset > svlen)
2121 croak ("offset outside of scalar");
2122
2123 if (!SvOK (length) || len + offset > svlen)
2124 len = svlen - offset;
2125
2126 addr = (void *)(((intptr_t)addr) + offset);
2127 eio_page_align (&addr, &len);
2128
2129 switch (ix)
2130 {
2131 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2132 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2133 }
2134}
2135 OUTPUT:
2136 RETVAL
2137
2138int
2139munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2140 CODE:
2141{
2142 STRLEN svlen;
2143 void *addr = SvPVbyte (scalar, svlen);
2144 size_t len = SvUV (length);
2145
2146 if (offset < 0)
2147 offset += svlen;
2148
2149 if (offset < 0 || offset > svlen)
2150 croak ("offset outside of scalar");
2151
2152 if (!SvOK (length) || len + offset > svlen)
2153 len = svlen - offset;
2154
2155 addr = (void *)(((intptr_t)addr) + offset);
2156 eio_page_align (&addr, &len);
2157#if _POSIX_MEMLOCK_RANGE
2158 RETVAL = munlock (addr, len);
2159#else
2160 RETVAL = EIO_ENOSYS ();
2161#endif
2162}
2163 OUTPUT:
2164 RETVAL
2165
2166int
2167munlockall ()
2168 CODE:
2169#if _POSIX_MEMLOCK
2170 munlockall ();
2171#else
2172 RETVAL = EIO_ENOSYS ();
2173#endif
2174 OUTPUT:
2175 RETVAL
2176
2177int
2178splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2179 CODE:
2180{
2181#if HAVE_LINUX_SPLICE
2182 loff_t off_in_, off_out_;
2183 RETVAL = splice (
2184 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2185 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2186 length, flags
2187 );
2188#else
2189 RETVAL = EIO_ENOSYS ();
2190#endif
2191}
2192 OUTPUT:
2193 RETVAL
2194
2195int
2196tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2197 CODE:
2198#if HAVE_LINUX_SPLICE
2199 RETVAL = tee (rfh, wfh, length, flags);
2200#else
2201 RETVAL = EIO_ENOSYS ();
2202#endif
2203 OUTPUT:
2204 RETVAL
2205
2206int
2207pipesize (aio_rfd rfh, int new_size = -1)
2208 PROTOTYPE: $;$
2209 CODE:
2210#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2211 if (new_size >= 0)
2212 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2213 else
2214 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2215#else
2216 errno = ENOSYS;
2217 RETVAL = -1;
2218#endif
2219 OUTPUT:
2220 RETVAL
2221
2222void
2223pipe2 (int flags = 0)
2224 PROTOTYPE: ;$
2225 PPCODE:
2226{
2227 int fd[2];
2228 int res;
2229
2230 if (flags)
2231#if HAVE_PIPE2
2232 res = pipe2 (fd, flags);
2233#else
2234 res = (errno = ENOSYS, -1);
2235#endif
2236 else
2237 res = pipe (fd);
2238
2239 if (!res)
2240 {
2241 EXTEND (SP, 2);
2242 PUSHs (newmortalFH (fd[0], O_RDONLY));
2243 PUSHs (newmortalFH (fd[1], O_WRONLY));
2244 }
2245}
2246
2247void
2248eventfd (unsigned int initval = 0, int flags = 0)
2249 PPCODE:
2250{
2251 int fd;
2252#if HAVE_EVENTFD
2253 fd = eventfd (initval, flags);
2254#else
2255 fd = (errno = ENOSYS, -1);
2256#endif
2257
2258 XPUSHs (newmortalFH (fd, O_RDWR));
2259}
2260
2261void
2262timerfd_create (int clockid, int flags = 0)
2263 PPCODE:
2264{
2265 int fd;
2266#if HAVE_TIMERFD
2267 fd = timerfd_create (clockid, flags);
2268#else
2269 fd = (errno = ENOSYS, -1);
2270#endif
2271
2272 XPUSHs (newmortalFH (fd, O_RDWR));
2273}
2274
2275void
2276timerfd_settime (SV *fh, int flags, NV interval, NV value)
2277 PPCODE:
2278{
2279 int fd = s_fileno_croak (fh, 0);
2280#if HAVE_TIMERFD
2281 int res;
2282 struct itimerspec its, ots;
2283
2284 ts_set (&its.it_interval, interval);
2285 ts_set (&its.it_value , value);
2286 res = timerfd_settime (fd, flags, &its, &ots);
2287
2288 if (!res)
2289 {
2290 EXTEND (SP, 2);
2291 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2292 PUSHs (newSVnv (ts_get (&ots.it_value)));
2293 }
2294#else
2295 errno = ENOSYS;
2296#endif
2297}
2298
2299void
2300timerfd_gettime (SV *fh)
2301 PPCODE:
2302{
2303 int fd = s_fileno_croak (fh, 0);
2304#if HAVE_TIMERFD
2305 int res;
2306 struct itimerspec ots;
2307 res = timerfd_gettime (fd, &ots);
2308
2309 if (!res)
2310 {
2311 EXTEND (SP, 2);
2312 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2313 PUSHs (newSVnv (ts_get (&ots.it_value)));
2314 }
2315#else
2316 errno = ENOSYS;
2317#endif
2318}
2319
2320UV
2321get_fdlimit ()
2322 CODE:
2323#if HAVE_RLIMITS
2324 struct rlimit rl;
2325 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2326 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2327#endif
2328 XSRETURN_UNDEF;
2329 OUTPUT:
2330 RETVAL
2331
2332void
2333min_fdlimit (UV limit = 0x7fffffffU)
2334 CODE:
2335{
2336#if HAVE_RLIMITS
2337 struct rlimit rl;
2338 rlim_t orig_rlim_max;
2339 UV bit;
2340
2341 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2342 goto fail;
2343
2344 if (rl.rlim_cur == RLIM_INFINITY)
2345 XSRETURN_YES;
2346
2347 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2348
2349 if (rl.rlim_cur < limit)
2350 {
2351 rl.rlim_cur = limit;
2352
2353 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2354 rl.rlim_max = rl.rlim_cur;
2355 }
2356
2357 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2358 XSRETURN_YES;
2359
2360 if (errno == EPERM)
2361 {
2362 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2363 /* our limit overflows a system-wide limit */
2364 /* try an adaptive algorithm, but do not lower the hardlimit */
2365 rl.rlim_max = 0;
2366 for (bit = 0x40000000U; bit; bit >>= 1)
2367 {
2368 rl.rlim_max |= bit;
2369 rl.rlim_cur = rl.rlim_max;
2370
2371 /* nevr decrease the hard limit */
2372 if (rl.rlim_max < orig_rlim_max)
2373 break;
2374
2375 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2376 rl.rlim_max &= ~bit; /* too high, remove bit again */
2377 }
2378
2379 /* now, raise the soft limit to the max permitted */
2380 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2381 {
2382 rl.rlim_cur = rl.rlim_max;
2383 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2384 errno = EPERM;
2385 }
2386 }
2387#endif
2388 fail:
2389 XSRETURN_UNDEF;
2390}
2391
2392void _on_next_submit (SV *cb)
2393 CODE:
2394 SvREFCNT_dec (on_next_submit);
2395 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2396
1996PROTOTYPES: DISABLE 2397PROTOTYPES: DISABLE
2398
2399MODULE = IO::AIO PACKAGE = IO::AIO::WD
2400
2401BOOT:
2402{
2403 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2404 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2405}
2406
2407void
2408DESTROY (SV *self)
2409 CODE:
2410{
2411 aio_wd wd = SvAIO_WD (self);
2412#if HAVE_AT
2413 {
2414 SV *callback = &PL_sv_undef;
2415 dREQ; /* clobbers next_pri :/ */
2416 next_pri = req->pri; /* restore next_pri */
2417 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2418 req->type = EIO_WD_CLOSE;
2419 req->wd = wd;
2420 REQ_SEND;
2421 }
2422#else
2423 eio_wd_close_sync (wd);
2424#endif
2425}
1997 2426
1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2427MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1999 2428
2000void 2429void
2001cancel (aio_req_ornot req) 2430cancel (aio_req_ornot req)
2002 CODE: 2431 CODE:
2003 req_cancel (req); 2432 eio_cancel (req);
2004 2433
2005void 2434void
2006cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2435cb (aio_req_ornot req, SV *callback = NO_INIT)
2007 CODE: 2436 PPCODE:
2437{
2438 if (GIMME_V != G_VOID)
2439 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2440
2441 if (items > 1)
2442 {
2443 SV *cb_cv = get_cb (callback);
2444
2008 SvREFCNT_dec (req->callback); 2445 SvREFCNT_dec (req->callback);
2009 req->callback = newSVsv (callback); 2446 req->callback = SvREFCNT_inc (cb_cv);
2447 }
2448}
2010 2449
2011MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2450MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2012 2451
2013void 2452void
2014add (aio_req grp, ...) 2453add (aio_req grp, ...)
2015 PPCODE: 2454 PPCODE:
2016{ 2455{
2017 int i; 2456 int i;
2018 aio_req req;
2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022 2457
2023 if (grp->int1 == 2) 2458 if (grp->int1 == 2)
2024 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2459 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2025 2460
2026 for (i = 1; i < items; ++i ) 2461 for (i = 1; i < items; ++i )
2027 { 2462 {
2463 aio_req req;
2464
2028 if (GIMME_V != G_VOID) 2465 if (GIMME_V != G_VOID)
2029 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2466 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2030 2467
2031 req = SvAIO_REQ (ST (i)); 2468 req = SvAIO_REQ (ST (i));
2032 2469
2033 if (req) 2470 if (req)
2034 { 2471 eio_grp_add (grp, req);
2035 ++grp->size;
2036 req->grp = grp;
2037
2038 req->grp_prev = 0;
2039 req->grp_next = grp->grp_first;
2040
2041 if (grp->grp_first)
2042 grp->grp_first->grp_prev = req;
2043
2044 grp->grp_first = req;
2045 }
2046 } 2472 }
2047} 2473}
2048 2474
2049void 2475void
2050cancel_subs (aio_req_ornot req) 2476cancel_subs (aio_req_ornot req)
… …
2059 AV *av; 2485 AV *av;
2060 2486
2061 grp->errorno = errno; 2487 grp->errorno = errno;
2062 2488
2063 av = newAV (); 2489 av = newAV ();
2490 av_extend (av, items - 1);
2064 2491
2065 for (i = 1; i < items; ++i ) 2492 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i))); 2493 av_push (av, newSVsv (ST (i)));
2067 2494
2068 SvREFCNT_dec (grp->sv1); 2495 SvREFCNT_dec (grp->sv1);
… …
2075 grp->errorno = errorno; 2502 grp->errorno = errorno;
2076 2503
2077void 2504void
2078limit (aio_req grp, int limit) 2505limit (aio_req grp, int limit)
2079 CODE: 2506 CODE:
2080 grp->int2 = limit; 2507 eio_grp_limit (grp, limit);
2081 aio_grp_feed (grp);
2082 2508
2083void 2509void
2084feed (aio_req grp, SV *callback=&PL_sv_undef) 2510feed (aio_req grp, SV *callback = &PL_sv_undef)
2085 CODE: 2511 CODE:
2086{ 2512{
2087 SvREFCNT_dec (grp->sv2); 2513 SvREFCNT_dec (grp->sv2);
2088 grp->sv2 = newSVsv (callback); 2514 grp->sv2 = newSVsv (callback);
2515 grp->feed = aio_grp_feed;
2089 2516
2090 if (grp->int2 <= 0) 2517 if (grp->int2 <= 0)
2091 grp->int2 = 2; 2518 grp->int2 = 2;
2092 2519
2093 aio_grp_feed (grp); 2520 eio_grp_limit (grp, grp->int2);
2094} 2521}
2095 2522

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