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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC vs.
Revision 1.257 by root, Tue Jul 17 23:20:09 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"
… …
13#include <sys/stat.h> 13#include <sys/stat.h>
14#include <limits.h> 14#include <limits.h>
15#include <fcntl.h> 15#include <fcntl.h>
16#include <sched.h> 16#include <sched.h>
17 17
18#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
19# include <sys/mman.h>
20#endif
21
22/* the incompetent fool that created musl keeps __linux__, refuses
23 * to implement any linux standard apis, and also has no way to test
24 * for his broken iplementation. don't complain to me if this fails
25 * for you.
26 */
27#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
28# include <linux/fs.h>
29# ifdef FS_IOC_FIEMAP
30# include <linux/types.h>
31# include <linux/fiemap.h>
32# define HAVE_FIEMAP 1
33# endif
34#endif
35
36/* perl namespace pollution */
37#undef VERSION
38
39/* perl stupidly overrides readdir and maybe others */
40/* with thread-unsafe versions, imagine that :( */
41#undef readdir
42#undef opendir
43#undef closedir
44
18#ifdef _WIN32 45#ifdef _WIN32
19 46
20# define SIGIO 0 47 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 48
22#undef malloc 49 #undef malloc
23#undef free 50 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 51 #undef open
27# undef read 52 #undef read
28# undef write 53 #undef write
29# undef send 54 #undef send
30# undef recv 55 #undef recv
31# undef stat 56 #undef stat
57 #undef lstat
32# undef fstat 58 #undef fstat
33# define lstat stat
34# undef truncate 59 #undef truncate
35# undef ftruncate 60 #undef ftruncate
36# undef open 61 #undef open
62 #undef link
37# undef close 63 #undef close
38# undef unlink 64 #undef unlink
65 #undef mkdir
39# undef rmdir 66 #undef rmdir
40# undef rename 67 #undef rename
41# undef lseek 68 #undef lseek
69 #undef opendir
70 #undef readdir
71 #undef closedir
72 #undef chmod
73 #undef fchmod
74 #undef dup
75 #undef dup2
76 #undef abort
77 #undef pipe
42 78
43# define chown(a,b,c) (errno = ENOSYS, -1) 79 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 80 #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 81
57#else 82#else
58 83
59# include "autoconf/config.h"
60# include <sys/time.h> 84 #include <sys/time.h>
61# include <sys/select.h> 85 #include <sys/select.h>
62# include <unistd.h> 86 #include <unistd.h>
63# include <utime.h> 87 #include <utime.h>
64# include <signal.h> 88 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 89
67#endif 90 #define EIO_STRUCT_STAT Stat_t
68 91
69#if HAVE_SENDFILE 92#endif
70# if __linux 93
94/*****************************************************************************/
95
96#if __GNUC__ >= 3
97# define expect(expr,value) __builtin_expect ((expr),(value))
98#else
99# define expect(expr,value) (expr)
100#endif
101
102#define expect_false(expr) expect ((expr) != 0, 0)
103#define expect_true(expr) expect ((expr) != 0, 1)
104
105/*****************************************************************************/
106
107#include "libeio/config.h"
108
109#include "schmorp.h"
110
111#if HAVE_EVENTFD
71# include <sys/sendfile.h> 112# include <sys/eventfd.h>
72# elif __freebsd 113#endif
73# include <sys/socket.h> 114
115#if HAVE_TIMERFD
74# include <sys/uio.h> 116# include <sys/timerfd.h>
75# elif __hpux 117#endif
118
119#if HAVE_RLIMITS
120 #include <sys/time.h>
76# include <sys/socket.h> 121 #include <sys/resource.h>
77# elif __solaris /* not yet */ 122#endif
78# include <sys/sendfile.h> 123
124typedef SV SV8; /* byte-sv, used for argument-checking */
125typedef int aio_rfd; /* read file desriptor */
126typedef int aio_wfd; /* write file descriptor */
127
128static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
129
130#define EIO_REQ_MEMBERS \
131 SV *callback; \
132 SV *sv1, *sv2; \
133 SV *sv3, *sv4; \
134 STRLEN stroffset; \
135 SV *self;
136
137#define EIO_NO_WRAPPERS 1
138
139#include "libeio/eio.h"
140
141static int req_invoke (eio_req *req);
142#define EIO_FINISH(req) req_invoke (req)
143static void req_destroy (eio_req *grp);
144#define EIO_DESTROY(req) req_destroy (req)
145
146#include "libeio/eio.c"
147
148#if !HAVE_POSIX_FADVISE
149# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#if !HAVE_POSIX_MADVISE
153# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#ifndef MAP_ANONYMOUS
157# ifdef MAP_ANON
158# define MAP_ANONYMOUS MAP_ANON
79# else 159# else
80# error sendfile support requested but not available 160# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 161# endif
82#endif 162#endif
83 163
84/* number of seconds after which idle threads exit */ 164/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 165/* also provides const_iv_ and const_niv_ macros for them */
166#include "def0.h"
86 167
87/* used for struct dirent, AIX doesn't provide it */ 168#ifndef makedev
88#ifndef NAME_MAX 169# define makedev(maj,min) (((maj) << 8) | (min))
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) EIO_ENOSYS ()
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
279static void
280fiemap (eio_req *req)
281{
282 req->result = -1;
283
284#if HAVE_FIEMAP
285 /* assume some c99 */
286 struct fiemap *fiemap = 0;
287 size_t end_offset;
288 int count = req->int3;
289
290 req->flags |= EIO_FLAG_PTR1_FREE;
291
292 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
293 /* increase in 3.5kb steps */
294 if (count < 0)
295 count = 8;
296
297 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
298 errno = ENOMEM;
299 if (!fiemap)
197 return; 300 return;
198 301
199 if (!main_sig) 302 req->ptr1 = fiemap;
303
304 fiemap->fm_start = req->offs;
305 fiemap->fm_length = req->size;
306 fiemap->fm_flags = req->int2;
307 fiemap->fm_extent_count = count;
308
309 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 310 return;
201 311
202 sigemptyset (&ss); 312 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 313 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 314 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 315 goto done;
206 316
207void unblock_sig () 317 /* else we have to loop -
208{ 318 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 319 * number of extents needed, but linux often feels like not returning all
320 * extents, without telling us it left any out. this complicates
321 * this quite a bit.
322 */
210 323
211 if (--block_sig_level) 324 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 325
214 if (!main_sig) 326 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 { 327 {
247 closedir (wrk->dirp); 328 /* 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; 329 char scratch[3072];
249 } 330 struct fiemap *incmap = (struct fiemap *)scratch;
250 331
251 if (wrk->dbuf) 332 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 333 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 334 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 335 incmap->fm_flags = fiemap->fm_flags;
255 } 336 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 337
258static void worker_free (worker *wrk) 338 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0; 339 return;
353 340
354 --q->size; 341 if (!incmap->fm_mapped_extents)
342 goto done;
355 343
356 for (pri = NUM_PRI; pri--; ) 344 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 345 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 346 errno = ENOMEM;
359
360 if (req) 347 if (!fiemap)
348 return;
349
350 req->ptr1 = fiemap;
351
352 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 353 {
362 if (!(q->qs[pri] = req->next)) 354 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 355
365 return req; 356 if (e->fe_logical + e->fe_length >= end_offset)
357 goto done;
358
359 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
360
361 if (e->fe_flags & FIEMAP_EXTENT_LAST)
362 goto done;
363
366 } 364 }
367 } 365 }
368 366
369 abort (); 367done:
370} 368 req->result = 0;
371 369
372static int poll_cb (); 370#else
373static int req_invoke (aio_req req); 371 errno = ENOSYS;
372#endif
373}
374
375/*****************************************************************************/
376
377enum {
378 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
379};
380
381typedef eio_req *aio_req;
382typedef eio_req *aio_req_ornot;
383typedef eio_wd aio_wd;
384
385static SV *on_next_submit;
386static int next_pri = EIO_PRI_DEFAULT;
387static int max_outstanding;
388
389static s_epipe respipe;
390
374static void req_destroy (aio_req req); 391static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 392static void req_cancel (aio_req req);
376 393
394static void
395want_poll (void)
396{
397 /* write a dummy byte to the pipe so fh becomes ready */
398 s_epipe_signal (&respipe);
399}
400
401static void
402done_poll (void)
403{
404 /* read any signals sent by the worker threads */
405 s_epipe_drain (&respipe);
406}
407
377/* must be called at most once */ 408/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 409static SV *
410req_sv (aio_req req, HV *stash)
379{ 411{
380 if (!req->self) 412 if (!req->self)
381 { 413 {
382 req->self = (SV *)newHV (); 414 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 415 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 416 }
385 417
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 418 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 419}
388 420
389static aio_req SvAIO_REQ (SV *sv) 421static SV *
422newSVaio_wd (aio_wd wd)
423{
424 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
425}
426
427static aio_req
428SvAIO_REQ (SV *sv)
390{ 429{
391 MAGIC *mg; 430 MAGIC *mg;
392 431
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 432 if (!SvROK (sv)
433 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
434 || (SvSTASH (SvRV (sv)) != aio_grp_stash
435 && SvSTASH (SvRV (sv)) != aio_req_stash
436 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 437 croak ("object of class IO::AIO::REQ expected");
395 438
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 439 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 440
398 return mg ? (aio_req)mg->mg_ptr : 0; 441 return mg ? (aio_req)mg->mg_ptr : 0;
399} 442}
400 443
444static aio_wd
445SvAIO_WD (SV *sv)
446{
447 if (!SvROK (sv)
448 || SvTYPE (SvRV (sv)) != SVt_PVMG
449 || SvSTASH (SvRV (sv)) != aio_wd_stash)
450 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
451
452 return (aio_wd)(long)SvIVX (SvRV (sv));
453}
454
455static SV *
456newmortalFH (int fd, int flags)
457{
458 if (fd < 0)
459 return &PL_sv_undef;
460
461 GV *gv = (GV *)sv_newmortal ();
462 char sym[64];
463 int symlen;
464
465 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
466 gv_init (gv, aio_stash, sym, symlen, 0);
467
468 symlen = snprintf (
469 sym,
470 sizeof (sym),
471 "%s&=%d",
472 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
473 fd
474 );
475
476 return do_open (gv, sym, symlen, 0, 0, 0, 0)
477 ? (SV *)gv : &PL_sv_undef;
478}
479
480static void
401static void aio_grp_feed (aio_req grp) 481aio_grp_feed (aio_req grp)
402{ 482{
403 block_sig (); 483 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 484 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 485 dSP;
412 486
413 ENTER; 487 ENTER;
414 SAVETMPS; 488 SAVETMPS;
415 PUSHMARK (SP); 489 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 490 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 491 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 492 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 493 SPAGAIN;
420 FREETMPS; 494 FREETMPS;
421 LEAVE; 495 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 } 496 }
432
433 unblock_sig ();
434} 497}
435 498
436static void aio_grp_dec (aio_req grp) 499static void
500req_submit (eio_req *req)
437{ 501{
438 --grp->size; 502 eio_submit (req);
439 503
440 /* call feeder, if applicable */ 504 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 505 {
446 block_sig (); 506 dSP;
507 SV *cb = sv_2mortal (on_next_submit);
447 508
448 if (!req_invoke (grp)) 509 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 510
455 req_destroy (grp); 511 PUSHMARK (SP);
456 unblock_sig (); 512 PUTBACK;
513 call_sv (cb, G_DISCARD | G_EVAL);
457 } 514 }
458} 515}
459 516
517static int
460static int req_invoke (aio_req req) 518req_invoke (eio_req *req)
461{ 519{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 520 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 521 SvREADONLY_off (req->sv2);
466 522
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 523 if (!EIO_CANCELLED (req) && req->callback)
468 { 524 {
525 dSP;
526 static SV *sv_result_cache; /* caches the result integer SV */
527 SV *sv_result;
528
469 ENTER; 529 ENTER;
470 SAVETMPS; 530 SAVETMPS;
471 PUSHMARK (SP); 531 PUSHMARK (SP);
472 EXTEND (SP, 1); 532 EXTEND (SP, 1);
473 533
534 /* do not recreate the result IV from scratch each time */
535 if (expect_true (sv_result_cache))
536 {
537 sv_result = sv_result_cache; sv_result_cache = 0;
538 SvIV_set (sv_result, req->result);
539 SvIOK_only (sv_result);
540 }
541 else
542 {
543 sv_result = newSViv (req->result);
544 SvREADONLY_on (sv_result);
545 }
546
474 switch (req->type) 547 switch (req->type)
475 { 548 {
549 case EIO_WD_OPEN:
550 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
551 break;
552
476 case REQ_READDIR: 553 case EIO_READDIR:
477 { 554 {
478 SV *rv = &PL_sv_undef; 555 SV *rv = &PL_sv_undef;
479 556
480 if (req->result >= 0) 557 if (req->result >= 0)
481 { 558 {
482 int i; 559 int i;
483 char *buf = req->ptr2; 560 char *names = (char *)req->ptr2;
561 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 562 AV *av = newAV ();
485 563
486 av_extend (av, req->result - 1); 564 av_extend (av, req->result - 1);
487 565
488 for (i = 0; i < req->result; ++i) 566 for (i = 0; i < req->result; ++i)
489 { 567 {
490 SV *sv = newSVpv (buf, 0); 568 if (req->int1 & EIO_READDIR_DENTS)
569 {
570 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 571
572 if (req->int1 & EIO_READDIR_CUSTOM2)
573 {
574 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
575 AV *avent = newAV ();
576
577 av_extend (avent, 2);
578
579 if (!sv_type [ent->type])
580 {
581 sv_type [ent->type] = newSViv (ent->type);
582 SvREADONLY_on (sv_type [ent->type]);
583 }
584
585 av_store (avent, 0, namesv);
586 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
587 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
588
589 av_store (av, i, newRV_noinc ((SV *)avent));
590 }
591 else
492 av_store (av, i, sv); 592 av_store (av, i, namesv);
593
594 ++ent;
595 }
596 else
597 {
598 SV *name = newSVpv (names, 0);
599 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 600 names += SvCUR (name) + 1;
601 }
494 } 602 }
495 603
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 604 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 605 }
498 606
499 PUSHs (rv); 607 PUSHs (rv);
608
609 if (req->int1 & EIO_READDIR_CUSTOM1)
610 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 611 }
501 break; 612 break;
502 613
503 case REQ_OPEN: 614 case EIO_OPEN:
615 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
616 break;
617
618 case EIO_STATVFS:
619 case EIO_FSTATVFS:
504 { 620 {
505 /* convert fd to fh */ 621 SV *rv = &PL_sv_undef;
506 SV *fh; 622
623#ifndef _WIN32
624 if (req->result >= 0)
625 {
626 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
627 HV *hv = newHV ();
628 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
629 * chooses to make it a struct.
630 */
631 unsigned long fsid = 0;
632 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
507 633
508 PUSHs (sv_2mortal (newSViv (req->result))); 634 rv = sv_2mortal (newRV_noinc ((SV *)hv));
509 PUTBACK;
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
511 SPAGAIN;
512 635
513 fh = POPs; 636 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
514 PUSHMARK (SP); 637 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
638 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
639 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
640 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
641 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
642 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
643 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
644 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
645 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
646 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
647 }
648#endif
649
515 XPUSHs (fh); 650 PUSHs (rv);
516 } 651 }
652
517 break; 653 break;
518 654
519 case REQ_GROUP: 655 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 656 req->int1 = 2; /* mark group as finished */
521 657
522 if (req->sv1) 658 if (req->sv1)
523 { 659 {
524 int i; 660 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 664 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 665 PUSHs (*av_fetch (av, i, 0));
530 } 666 }
531 break; 667 break;
532 668
533 case REQ_NOP: 669 case EIO_NOP:
534 case REQ_BUSY: 670 case EIO_BUSY:
535 break; 671 break;
536 672
537 case REQ_READLINK: 673 case EIO_READLINK:
674 case EIO_REALPATH:
538 if (req->result > 0) 675 if (req->result > 0)
676 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
677 break;
678
679 case EIO_STAT:
680 case EIO_LSTAT:
681 case EIO_FSTAT:
682 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
683
684 if (!(PL_laststatval = req->result))
685 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
686 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
687
688 PUSHs (sv_result);
689 break;
690
691 case EIO_SEEK:
692 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
693 break;
694
695 case EIO_READ:
696 {
697 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
698 *SvEND (req->sv2) = 0;
699 SvPOK_only (req->sv2);
700 SvSETMAGIC (req->sv2);
701 PUSHs (sv_result);
702 }
703 break;
704
705 case EIO_SLURP:
706 {
707 if (req->result >= 0)
708 {
709 /* if length was originally not known, we steal the malloc'ed memory */
710 if (req->flags & EIO_FLAG_PTR2_FREE)
711 {
712 req->flags &= ~EIO_FLAG_PTR2_FREE;
713 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
714 }
715 else
716 {
717 SvCUR_set (req->sv2, req->result);
718 *SvEND (req->sv2) = 0;
719 SvPOK_only (req->sv2);
720 }
721
722 SvSETMAGIC (req->sv2);
723 }
724
725 PUSHs (sv_result);
726 }
727 break;
728
729 case EIO_CUSTOM:
730 if (req->feed == fiemap)
539 { 731 {
540 SvCUR_set (req->sv2, req->result); 732#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 733 if (!req->result)
734 {
735 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
736
737 if (fiemap->fm_extent_count)
738 {
739 AV *av = newAV ();
740 int i;
741
742 while (fiemap->fm_mapped_extents)
743 {
744 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
745 AV *ext_av = newAV ();
746
747 av_store (ext_av, 3, newSVuv (extent->fe_flags));
748 av_store (ext_av, 2, newSVval64 (extent->fe_length));
749 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
750 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
751
752 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
753 }
754
755 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
756 }
757 else
758 {
759 SvIV_set (sv_result, fiemap->fm_mapped_extents);
760 PUSHs (sv_result);
761 }
762 }
763#endif
543 } 764 }
765 else
766 PUSHs (sv_result);
544 break; 767 break;
545 768
546 case REQ_STAT: 769 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 770 if (req->result > 0)
548 case REQ_FSTAT: 771 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 772 /* 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;
560 773
561 default: 774 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 775 PUSHs (sv_result);
563 break; 776 break;
564 } 777 }
565 778
566 errno = req->errorno; 779 errno = req->errorno;
567 780
568 PUTBACK; 781 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 782 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 783 SPAGAIN;
784
785 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
786 SvREFCNT_dec (sv_result);
787 else
788 sv_result_cache = sv_result;
571 789
572 FREETMPS; 790 FREETMPS;
573 LEAVE; 791 LEAVE;
792
793 PUTBACK;
574 } 794 }
575 795
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); 796 return !!SvTRUE (ERRSV);
591} 797}
592 798
799static void
593static void req_destroy (aio_req req) 800req_destroy (aio_req req)
594{ 801{
595 if (req->self) 802 if (req->self)
596 { 803 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 804 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 805 SvREFCNT_dec (req->self);
599 } 806 }
600 807
601 SvREFCNT_dec (req->sv1); 808 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 809 SvREFCNT_dec (req->sv2);
810 SvREFCNT_dec (req->sv3);
811 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 812 SvREFCNT_dec (req->callback);
604 813
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 814 free (req);
609} 815}
610 816
817static void
611static void req_cancel_subs (aio_req grp) 818req_cancel_subs (aio_req grp)
612{ 819{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 820 if (grp->type != EIO_GROUP)
616 return; 821 return;
617 822
618 SvREFCNT_dec (grp->sv2); 823 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 824 grp->sv2 = 0;
620 825
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 826 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 827}
624 828
625static void req_cancel (aio_req req) 829static void ecb_cold
830create_respipe (void)
626{ 831{
627 req->flags |= FLAG_CANCELLED; 832 if (s_epipe_renew (&respipe))
628 833 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 834}
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
637 835
638static void 836static void
639create_pipe (int fd[2]) 837poll_wait (void)
640{ 838{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655}
656
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 839 while (eio_nreqs ())
757 { 840 {
758 int size; 841 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 842
843 X_LOCK (EIO_POOL->reslock);
760 size = res_queue.size; 844 size = EIO_POOL->res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 845 X_UNLOCK (EIO_POOL->reslock);
762 846
763 if (size) 847 if (size)
764 return; 848 return;
765 849
766 maybe_start_thread (); 850 etp_maybe_start_thread (EIO_POOL);
767 851
768 FD_ZERO (&rfd); 852 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 853 }
773} 854}
774 855
775static int poll_cb () 856static int
857poll_cb (void)
776{ 858{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 859 for (;;)
790 { 860 {
791 for (;;) 861 int res = eio_poll ();
862
863 if (res > 0)
864 croak (0);
865
866 if (!max_outstanding || max_outstanding > eio_nreqs ())
867 return res;
868
869 poll_wait ();
870 }
871}
872
873static void ecb_cold
874reinit (void)
875{
876 create_respipe ();
877
878 if (eio_init (want_poll, done_poll) < 0)
879 croak ("IO::AIO: unable to initialise eio library");
880}
881
882/*****************************************************************************/
883
884static SV *
885get_cb (SV *cb_sv)
886{
887 SvGETMAGIC (cb_sv);
888 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
889}
890
891static aio_req ecb_noinline
892dreq (SV *callback)
893{
894 SV *cb_cv;
895 aio_req req;
896 int req_pri = next_pri;
897 next_pri = EIO_PRI_DEFAULT;
898
899 cb_cv = get_cb (callback);
900
901 req = calloc (sizeof (*req), 1);
902 if (!req)
903 croak ("out of memory during eio_req allocation");
904
905 req->callback = SvREFCNT_inc (cb_cv);
906 req->pri = req_pri;
907
908 return req;
909}
910
911#define dREQ \
912 aio_req req = dreq (callback); \
913
914#define REQ_SEND \
915 PUTBACK; \
916 req_submit (req); \
917 SPAGAIN; \
918 \
919 if (GIMME_V != G_VOID) \
920 XPUSHs (req_sv (req, aio_req_stash));
921
922ecb_inline void
923req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
924{
925 if (expect_false (SvROK (path)))
926 {
927 SV *rv = SvRV (path);
928 SV *wdob;
929
930 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 931 {
793 maybe_start_thread (); 932 path = AvARRAY (rv)[1];
933 wdob = AvARRAY (rv)[0];
794 934
795 X_LOCK (reslock); 935 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 936 {
800 --npending; 937 *wd = SvAIO_WD (wdob);
801 938 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 } 939 }
823 else 940 else
824 { 941 *wd = EIO_INVALID_WD;
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0);
830 }
831
832 count++;
833 }
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 } 942 }
943 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
944 {
945 *wd = (aio_wd)(long)SvIVX (rv);
946 *wdsv = SvREFCNT_inc_NN (rv);
947 *ptr = ".";
948 return; /* path set to "." */
949 }
950 else
951 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
952 }
848 953
849 if (nreqs <= max_outstanding) 954 *pathsv = newSVsv (path);
955 *ptr = SvPVbyte_nolen (*pathsv);
956}
957
958static void ecb_noinline
959req_set_path1 (aio_req req, SV *path)
960{
961 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
962}
963
964static void ecb_noinline
965req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
966{
967 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
968
969 switch (SvTYPE (rv))
970 {
971 case SVt_PVIO:
972 case SVt_PVLV:
973 case SVt_PVGV:
974 req->type = type_fh;
975 req->sv1 = newSVsv (fh_or_path);
976 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 977 break;
851 978
852 poll_wait (); 979 default:
853 980 req->type = type_path;
854 ++maxreqs; 981 req_set_path1 (req, fh_or_path);
982 break;
855 } 983 }
856
857 unblock_sig ();
858 return count;
859} 984}
860 985
861/*****************************************************************************/ 986/*****************************************************************************/
862/* work around various missing functions */
863 987
864#if !HAVE_PREADWRITE 988static void
865# define pread aio_pread 989ts_set (struct timespec *ts, NV value)
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{ 990{
877 ssize_t res; 991 ts->tv_sec = value;
878 off_t ooffset; 992 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888} 993}
889 994
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 995static NV
996ts_get (const struct timespec *ts)
891{ 997{
892 ssize_t res; 998 return ts->tv_sec + ts->tv_nsec * 1e-9;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082}
1083
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143} 999}
1144 1000
1145/*****************************************************************************/ 1001/*****************************************************************************/
1146 1002
1147X_THREAD_PROC (aio_proc) 1003XS(boot_IO__AIO) ecb_cold;
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153 1004
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 PerlSock_closesocket (respipe [0]);
1376 PerlSock_closesocket (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381}
1382
1383#define dREQ \
1384 aio_req req; \
1385 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \
1387 \
1388 if (SvOK (callback) && !SvROK (callback)) \
1389 croak ("callback must be undef or of reference type"); \
1390 \
1391 Newz (0, req, 1, aio_cb); \
1392 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \
1394 \
1395 req->callback = newSVsv (callback); \
1396 req->pri = req_pri
1397
1398#define REQ_SEND \
1399 req_send (req); \
1400 \
1401 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403
1404MODULE = IO::AIO PACKAGE = IO::AIO 1005MODULE = IO::AIO PACKAGE = IO::AIO
1405 1006
1406PROTOTYPES: ENABLE 1007PROTOTYPES: ENABLE
1407 1008
1408BOOT: 1009BOOT:
1409{ 1010{
1011 static const struct {
1012 const char *name;
1013 IV iv;
1014 } *civ, const_iv[] = {
1015# define const_niv(name, value) { # name, (IV) value },
1016# define const_iv(name) { # name, (IV) name },
1017# define const_eio(name) { # name, (IV) EIO_ ## name },
1018
1019 /* you have to re-run ./gendef0 after adding/removing any constants here */
1020 /* the first block can be undef if missing */
1021 const_iv (ENOSYS)
1022 const_iv (EXDEV)
1023 const_iv (EBADR)
1024
1025 /* for lseek */
1026 const_iv (SEEK_DATA)
1027 const_iv (SEEK_HOLE)
1028
1029 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1030 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1031 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1032 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1033 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1034 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1035
1036 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1037 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1038 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1039 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1040 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1041
1042 /* the second block will be 0 when missing */
1043 const_iv (O_RDONLY)
1044 const_iv (O_WRONLY)
1045 const_iv (O_RDWR)
1046 const_iv (O_CREAT)
1047 const_iv (O_TRUNC)
1048 const_iv (O_EXCL)
1049 const_iv (O_APPEND)
1050
1051 const_iv (O_ASYNC)
1052 const_iv (O_DIRECT)
1053 const_iv (O_NOATIME)
1054
1055 const_iv (O_CLOEXEC)
1056 const_iv (O_NOCTTY)
1057 const_iv (O_NOFOLLOW)
1058 const_iv (O_NONBLOCK)
1059 const_iv (O_EXEC)
1060 const_iv (O_SEARCH)
1061 const_iv (O_DIRECTORY)
1062 const_iv (O_DSYNC)
1063 const_iv (O_RSYNC)
1064 const_iv (O_SYNC)
1065 const_iv (O_PATH)
1066 const_iv (O_TMPFILE)
1067 const_iv (O_TTY_INIT)
1068
1069 const_iv (S_IFIFO)
1070 const_iv (S_IFCHR)
1071 const_iv (S_IFBLK)
1072 const_iv (S_IFLNK)
1073 const_iv (S_IFREG)
1074 const_iv (S_IFDIR)
1075 const_iv (S_IFWHT)
1076 const_iv (S_IFSOCK)
1077 const_iv (S_IFMT)
1078
1079 const_iv (ST_RDONLY)
1080 const_iv (ST_NOSUID)
1081 const_iv (ST_NODEV)
1082 const_iv (ST_NOEXEC)
1083 const_iv (ST_SYNCHRONOUS)
1084 const_iv (ST_MANDLOCK)
1085 const_iv (ST_WRITE)
1086 const_iv (ST_APPEND)
1087 const_iv (ST_IMMUTABLE)
1088 const_iv (ST_NOATIME)
1089 const_iv (ST_NODIRATIME)
1090 const_iv (ST_RELATIME)
1091
1092 const_iv (PROT_NONE)
1093 const_iv (PROT_EXEC)
1094 const_iv (PROT_READ)
1095 const_iv (PROT_WRITE)
1096
1097 const_iv (MAP_PRIVATE)
1098 const_iv (MAP_SHARED)
1099 const_iv (MAP_FIXED)
1100 const_iv (MAP_ANONYMOUS)
1101
1102 /* linuxish */
1103 const_iv (MAP_LOCKED)
1104 const_iv (MAP_NORESERVE)
1105 const_iv (MAP_POPULATE)
1106 const_iv (MAP_NONBLOCK)
1107 const_iv (MAP_GROWSDOWN)
1108 const_iv (MAP_32BIT)
1109 const_iv (MAP_HUGETLB)
1110 const_iv (MAP_STACK)
1111
1112 const_iv (MREMAP_MAYMOVE)
1113 const_iv (MREMAP_FIXED)
1114
1115 const_iv (F_DUPFD_CLOEXEC)
1116
1117 const_iv (F_OFD_GETLK)
1118 const_iv (F_OFD_SETLK)
1119 const_iv (F_OFD_GETLKW)
1120
1121 const_iv (FIFREEZE)
1122 const_iv (FITHAW)
1123 const_iv (FITRIM)
1124 const_iv (FICLONE)
1125 const_iv (FICLONERANGE)
1126 const_iv (FIDEDUPERANGE)
1127
1128 const_iv (FS_IOC_GETFLAGS)
1129 const_iv (FS_IOC_SETFLAGS)
1130 const_iv (FS_IOC_GETVERSION)
1131 const_iv (FS_IOC_SETVERSION)
1132 const_iv (FS_IOC_FIEMAP)
1133 const_iv (FS_IOC_FSGETXATTR)
1134 const_iv (FS_IOC_FSSETXATTR)
1135 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1136 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1137 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1138
1139 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1140
1141 const_iv (FS_SECRM_FL)
1142 const_iv (FS_UNRM_FL)
1143 const_iv (FS_COMPR_FL)
1144 const_iv (FS_SYNC_FL)
1145 const_iv (FS_IMMUTABLE_FL)
1146 const_iv (FS_APPEND_FL)
1147 const_iv (FS_NODUMP_FL)
1148 const_iv (FS_NOATIME_FL)
1149 const_iv (FS_DIRTY_FL)
1150 const_iv (FS_COMPRBLK_FL)
1151 const_iv (FS_NOCOMP_FL)
1152 const_iv (FS_ENCRYPT_FL)
1153 const_iv (FS_BTREE_FL)
1154 const_iv (FS_INDEX_FL)
1155 const_iv (FS_JOURNAL_DATA_FL)
1156 const_iv (FS_NOTAIL_FL)
1157 const_iv (FS_DIRSYNC_FL)
1158 const_iv (FS_TOPDIR_FL)
1159 const_iv (FS_FL_USER_MODIFIABLE)
1160
1161 const_iv (FS_XFLAG_REALTIME)
1162 const_iv (FS_XFLAG_PREALLOC)
1163 const_iv (FS_XFLAG_IMMUTABLE)
1164 const_iv (FS_XFLAG_APPEND)
1165 const_iv (FS_XFLAG_SYNC)
1166 const_iv (FS_XFLAG_NOATIME)
1167 const_iv (FS_XFLAG_NODUMP)
1168 const_iv (FS_XFLAG_RTINHERIT)
1169 const_iv (FS_XFLAG_PROJINHERIT)
1170 const_iv (FS_XFLAG_NOSYMLINKS)
1171 const_iv (FS_XFLAG_EXTSIZE)
1172 const_iv (FS_XFLAG_EXTSZINHERIT)
1173 const_iv (FS_XFLAG_NODEFRAG)
1174 const_iv (FS_XFLAG_FILESTREAM)
1175 const_iv (FS_XFLAG_DAX)
1176 const_iv (FS_XFLAG_HASATTR)
1177
1178 const_iv (FIEMAP_FLAG_SYNC)
1179 const_iv (FIEMAP_FLAG_XATTR)
1180 const_iv (FIEMAP_FLAGS_COMPAT)
1181 const_iv (FIEMAP_EXTENT_LAST)
1182 const_iv (FIEMAP_EXTENT_UNKNOWN)
1183 const_iv (FIEMAP_EXTENT_DELALLOC)
1184 const_iv (FIEMAP_EXTENT_ENCODED)
1185 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1186 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1187 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1188 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1189 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1190 const_iv (FIEMAP_EXTENT_MERGED)
1191 const_iv (FIEMAP_EXTENT_SHARED)
1192
1193 const_iv (SPLICE_F_MOVE)
1194 const_iv (SPLICE_F_NONBLOCK)
1195 const_iv (SPLICE_F_MORE)
1196 const_iv (SPLICE_F_GIFT)
1197
1198 const_iv (EFD_CLOEXEC)
1199 const_iv (EFD_NONBLOCK)
1200 const_iv (EFD_SEMAPHORE)
1201
1202 const_iv (CLOCK_REALTIME)
1203 const_iv (CLOCK_MONOTONIC)
1204 const_iv (CLOCK_BOOTTIME)
1205 const_iv (CLOCK_REALTIME_ALARM)
1206 const_iv (CLOCK_BOOTTIME_ALARM)
1207
1208 const_iv (TFD_NONBLOCK)
1209 const_iv (TFD_CLOEXEC)
1210
1211 const_iv (TFD_TIMER_ABSTIME)
1212 const_iv (TFD_TIMER_CANCEL_ON_SET)
1213
1214 /* these are libeio constants, and are independent of gendef0 */
1215 const_eio (SEEK_SET)
1216 const_eio (SEEK_CUR)
1217 const_eio (SEEK_END)
1218
1219 const_eio (MCL_FUTURE)
1220 const_eio (MCL_CURRENT)
1221
1222 const_eio (MS_ASYNC)
1223 const_eio (MS_INVALIDATE)
1224 const_eio (MS_SYNC)
1225
1226 const_eio (MT_MODIFY)
1227
1228 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1229 const_eio (SYNC_FILE_RANGE_WRITE)
1230 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1231
1232 const_eio (FALLOC_FL_KEEP_SIZE)
1233 const_eio (FALLOC_FL_PUNCH_HOLE)
1234 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1235 const_eio (FALLOC_FL_ZERO_RANGE)
1236 const_eio (FALLOC_FL_INSERT_RANGE)
1237 const_eio (FALLOC_FL_UNSHARE_RANGE)
1238
1239 const_eio (RENAME_NOREPLACE)
1240 const_eio (RENAME_EXCHANGE)
1241 const_eio (RENAME_WHITEOUT)
1242
1243 const_eio (READDIR_DENTS)
1244 const_eio (READDIR_DIRS_FIRST)
1245 const_eio (READDIR_STAT_ORDER)
1246 const_eio (READDIR_FOUND_UNKNOWN)
1247
1248 const_eio (DT_UNKNOWN)
1249 const_eio (DT_FIFO)
1250 const_eio (DT_CHR)
1251 const_eio (DT_DIR)
1252 const_eio (DT_BLK)
1253 const_eio (DT_REG)
1254 const_eio (DT_LNK)
1255 const_eio (DT_SOCK)
1256 const_eio (DT_WHT)
1257 };
1258
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1259 aio_stash = gv_stashpv ("IO::AIO" , 1);
1260 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1261 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1262 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1263
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1264 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1265 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 1266
1425 X_COND_CHECK (reqwait); 1267 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 1268
1431 create_pipe (respipe); 1269 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1270}
1435 1271
1436void 1272void
1273reinit ()
1274 PROTOTYPE:
1275
1276void
1437max_poll_reqs (int nreqs) 1277max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1278 PROTOTYPE: $
1439 CODE: 1279 CODE:
1440 max_poll_reqs = nreqs; 1280 eio_set_max_poll_reqs (nreqs);
1441 1281
1442void 1282void
1443max_poll_time (double nseconds) 1283max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1284 PROTOTYPE: $
1445 CODE: 1285 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1286 eio_set_max_poll_time (nseconds);
1447 1287
1448void 1288void
1449min_parallel (int nthreads) 1289min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1290 PROTOTYPE: $
1459 CODE: 1291 CODE:
1460 set_max_idle (nthreads); 1292 eio_set_min_parallel (nthreads);
1461 1293
1462int 1294void
1463max_outstanding (int maxreqs) 1295max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1296 PROTOTYPE: $
1465 CODE: 1297 CODE:
1466 RETVAL = max_outstanding; 1298 eio_set_max_parallel (nthreads);
1299
1300void
1301max_idle (unsigned int nthreads)
1302 PROTOTYPE: $
1303 CODE:
1304 eio_set_max_idle (nthreads);
1305
1306void
1307idle_timeout (unsigned int seconds)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_idle_timeout (seconds);
1311
1312void
1313max_outstanding (unsigned int maxreqs)
1314 PROTOTYPE: $
1315 CODE:
1467 max_outstanding = maxreqs; 1316 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 1317
1471void 1318void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1319aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1320 PPCODE:
1475{ 1321{
1476 dREQ; 1322 dREQ;
1477 1323
1324 req->type = EIO_WD_OPEN;
1325 req_set_path1 (req, pathname);
1326
1327 REQ_SEND;
1328}
1329
1330void
1331aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1478 req->type = REQ_OPEN; 1336 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1337 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1338 req->int1 = flags;
1482 req->mode = mode; 1339 req->int2 = mode;
1483 1340
1484 REQ_SEND; 1341 REQ_SEND;
1485} 1342}
1486 1343
1487void 1344void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1345aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1346 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1347 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1348 aio_fdatasync = EIO_FDATASYNC
1349 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1350 PPCODE:
1495{ 1351{
1352 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1353 dREQ;
1497 1354
1498 req->type = ix; 1355 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1356 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1357 req->int1 = fd;
1501 1358
1502 REQ_SEND (req); 1359 REQ_SEND;
1503} 1360}
1504 1361
1505void 1362void
1363aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1364 PPCODE:
1365{
1366 int fd = s_fileno_croak (fh, 0);
1367 dREQ;
1368
1369 req->type = EIO_SYNC_FILE_RANGE;
1370 req->sv1 = newSVsv (fh);
1371 req->int1 = fd;
1372 req->offs = offset;
1373 req->size = nbytes;
1374 req->int2 = flags;
1375
1376 REQ_SEND;
1377}
1378
1379void
1380aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1381 PPCODE:
1382{
1383 int fd = s_fileno_croak (fh, 0);
1384 dREQ;
1385
1386 req->type = EIO_FALLOCATE;
1387 req->sv1 = newSVsv (fh);
1388 req->int1 = fd;
1389 req->int2 = mode;
1390 req->offs = offset;
1391 req->size = len;
1392
1393 REQ_SEND;
1394}
1395
1396void
1397aio_close (SV *fh, SV *callback = &PL_sv_undef)
1398 PPCODE:
1399{
1400 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1401 int fd = s_fileno_croak (fh, 0);
1402 dREQ;
1403
1404 if (expect_false (close_fd < 0))
1405 {
1406 int pipefd [2];
1407
1408 if (
1409#ifdef _WIN32
1410 _pipe (pipefd, 1, _O_BINARY) < 0
1411#else
1412 pipe (pipefd) < 0
1413 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1414#endif
1415 || close (pipefd [1]) < 0
1416 )
1417 abort (); /*D*/
1418
1419 close_fd = pipefd [0];
1420 }
1421
1422 req->type = EIO_DUP2;
1423 req->int1 = close_fd;
1424 req->sv2 = newSVsv (fh);
1425 req->int2 = fd;
1426
1427 REQ_SEND;
1428}
1429
1430void
1431aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 int fd = s_fileno_croak (fh, 0);
1435 dREQ;
1436
1437 req->type = EIO_SEEK;
1438 req->sv1 = newSVsv (fh);
1439 req->int1 = fd;
1440 req->offs = SvVAL64 (offset);
1441 req->int2 = whence;
1442
1443 REQ_SEND;
1444}
1445
1446void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1447aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1507 ALIAS: 1448 ALIAS:
1508 aio_read = REQ_READ 1449 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1450 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1451 PPCODE:
1512{ 1452{
1513 STRLEN svlen; 1453 STRLEN svlen;
1454 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1455 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1456 UV len = SvUV (length);
1516 1457
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1458 if (dataoffset < 0)
1521 dataoffset += svlen; 1459 dataoffset += svlen;
1522 1460
1523 if (dataoffset < 0 || dataoffset > svlen) 1461 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1462 croak ("dataoffset outside of data scalar");
1525 1463
1526 if (ix == REQ_WRITE) 1464 if (ix == EIO_WRITE)
1527 { 1465 {
1528 /* write: check length and adjust. */ 1466 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1467 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1468 len = svlen - dataoffset;
1531 } 1469 }
1532 else 1470 else
1533 { 1471 {
1534 /* read: grow scalar as necessary */ 1472 /* read: check type and grow scalar as necessary */
1473 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1474 svptr = sv_grow (data, len + dataoffset + 1);
1475 else if (SvCUR (data) < len + dataoffset)
1476 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1477 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1478
1541 { 1479 {
1542 dREQ; 1480 dREQ;
1543 1481
1544 req->type = ix; 1482 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1483 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1484 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1485 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1486 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1487 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1488 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1489 req->stroffset = dataoffset;
1553 1490
1554 if (!SvREADONLY (data)) 1491 if (!SvREADONLY (data))
1555 { 1492 {
1556 SvREADONLY_on (data); 1493 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1497 REQ_SEND;
1561 } 1498 }
1562} 1499}
1563 1500
1564void 1501void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1502aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1566 PROTOTYPE: $$;$ 1503 ALIAS:
1504 aio_ioctl = EIO_IOCTL
1505 aio_fcntl = EIO_FCNTL
1567 PPCODE: 1506 PPCODE:
1568{ 1507{
1569 SV *data; 1508 int fd = s_fileno_croak (fh, 0);
1570 dREQ; 1509 char *svptr;
1571 1510
1572 data = newSV (NAME_MAX); 1511 if (SvPOK (arg) || !SvNIOK (arg))
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK;
1576 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE:
1588{
1589 dREQ;
1590
1591 req->type = REQ_SENDFILE;
1592 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1594 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1596 req->offs = SvVAL64 (in_offset);
1597 req->size = length;
1598
1599 REQ_SEND;
1600}
1601
1602void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE:
1606{
1607 dREQ;
1608
1609 req->type = REQ_READAHEAD;
1610 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1612 req->offs = SvVAL64 (offset);
1613 req->size = length;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS:
1621 aio_stat = REQ_STAT
1622 aio_lstat = REQ_LSTAT
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 { 1512 {
1630 req_destroy (req); 1513 STRLEN svlen;
1631 croak ("out of memory during aio_stat statdata allocation"); 1514 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1632 } 1515#ifdef IOCPARM_LEN
1516 STRLEN need = IOCPARM_LEN (request);
1517#else
1518 STRLEN need = 256;
1519#endif
1633 1520
1634 req->flags |= FLAG_PTR2_FREE; 1521 if (svlen < need)
1635 req->sv1 = newSVsv (fh_or_path); 1522 svptr = SvGROW (arg, need);
1636
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1523 }
1642 else 1524 else
1525 svptr = (char *)SvIV (arg);
1526
1643 { 1527 {
1528 dREQ;
1529
1644 req->type = REQ_FSTAT; 1530 req->type = ix;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1531 req->sv1 = newSVsv (fh);
1532 req->int1 = fd;
1533 req->int2 = (long)request;
1534 req->sv2 = SvREFCNT_inc (arg);
1535 req->ptr2 = svptr;
1536
1537 REQ_SEND;
1646 } 1538 }
1539}
1540
1541void
1542aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1543 ALIAS:
1544 aio_readlink = EIO_READLINK
1545 aio_realpath = EIO_REALPATH
1546 PPCODE:
1547{
1548 dREQ;
1549
1550 req->type = ix;
1551 req_set_path1 (req, pathname);
1647 1552
1648 REQ_SEND; 1553 REQ_SEND;
1649} 1554}
1650 1555
1651void 1556void
1557aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1558 PPCODE:
1559{
1560 int ifd = s_fileno_croak (in_fh , 0);
1561 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ;
1563
1564 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh);
1566 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh);
1568 req->int2 = ifd;
1569 req->offs = in_offset;
1570 req->size = length;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1577 PPCODE:
1578{
1579 int fd = s_fileno_croak (fh, 0);
1580 dREQ;
1581
1582 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = fd;
1585 req->offs = offset;
1586 req->size = length;
1587
1588 REQ_SEND;
1589}
1590
1591void
1592aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1593 ALIAS:
1594 aio_stat = EIO_STAT
1595 aio_lstat = EIO_LSTAT
1596 aio_statvfs = EIO_STATVFS
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1602
1603 REQ_SEND;
1604}
1605
1606UV
1607major (UV dev)
1608 ALIAS:
1609 minor = 1
1610 CODE:
1611 RETVAL = ix ? minor (dev) : major (dev);
1612 OUTPUT:
1613 RETVAL
1614
1615UV
1616makedev (UV maj, UV min)
1617 CODE:
1618 RETVAL = makedev (maj, min);
1619 OUTPUT:
1620 RETVAL
1621
1622void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1623aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1653 PPCODE: 1624 PPCODE:
1654{ 1625{
1655 dREQ; 1626 dREQ;
1656 1627
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1628 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1629 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1630 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1631
1672 REQ_SEND; 1632 REQ_SEND;
1673} 1633}
1674 1634
1675void 1635void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1636aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1677 PPCODE: 1637 PPCODE:
1678{ 1638{
1679 dREQ; 1639 dREQ;
1680 1640
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1641 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1642 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1643
1695 REQ_SEND; 1644 REQ_SEND;
1696} 1645}
1697 1646
1698void 1647void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1648aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1700 PPCODE: 1649 PPCODE:
1701{ 1650{
1702 dREQ; 1651 dREQ;
1703 1652
1704 req->mode = mode; 1653 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1654 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1655
1718 REQ_SEND; 1656 REQ_SEND;
1719} 1657}
1720 1658
1721void 1659void
1722aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1660aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1723 PPCODE: 1661 PPCODE:
1724{ 1662{
1725 dREQ; 1663 dREQ;
1726 1664
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1665 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1666 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1667 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730
1731 if (SvPOK (fh_or_path))
1732 {
1733 req->type = REQ_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 }
1736 else
1737 {
1738 req->type = REQ_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 }
1741 1668
1742 REQ_SEND; 1669 REQ_SEND;
1743} 1670}
1744 1671
1745void 1672void
1673aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1674 PPCODE:
1675{
1676 dREQ;
1677
1678 req->type = EIO_READDIR;
1679 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1680
1681 if (flags & EIO_READDIR_DENTS)
1682 req->int1 |= EIO_READDIR_CUSTOM2;
1683
1684 req_set_path1 (req, pathname);
1685
1686 REQ_SEND;
1687}
1688
1689void
1690aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1691 PPCODE:
1692{
1693 dREQ;
1694
1695 req->type = EIO_MKDIR;
1696 req->int2 = mode;
1697 req_set_path1 (req, pathname);
1698
1699 REQ_SEND;
1700}
1701
1702void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1703aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1747 ALIAS: 1704 ALIAS:
1748 aio_unlink = REQ_UNLINK 1705 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1706 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1707 aio_readdir = EIO_READDIR
1751 PPCODE: 1708 PPCODE:
1752{ 1709{
1753 dREQ; 1710 dREQ;
1754 1711
1755 req->type = ix; 1712 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1713 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758 1714
1759 REQ_SEND; 1715 REQ_SEND;
1760} 1716}
1761 1717
1762void 1718void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1719aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1720 ALIAS:
1721 aio_link = EIO_LINK
1722 aio_symlink = EIO_SYMLINK
1723 aio_rename = EIO_RENAME
1764 PPCODE: 1724 PPCODE:
1765{ 1725{
1766 dREQ; 1726 eio_wd wd2 = 0;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS:
1779 aio_link = REQ_LINK
1780 aio_symlink = REQ_SYMLINK
1781 aio_rename = REQ_RENAME
1782 PPCODE:
1783{
1784 dREQ; 1727 dREQ;
1785 1728
1786 req->type = ix; 1729 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1730 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1731 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1732 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1733
1792 REQ_SEND; 1734 REQ_SEND;
1793} 1735}
1794 1736
1795void 1737void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1738aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1797 PPCODE: 1739 PPCODE:
1798{ 1740{
1741 eio_wd wd2 = 0;
1799 dREQ; 1742 dREQ;
1800 1743
1801 req->type = REQ_MKNOD; 1744 req->type = EIO_RENAME;
1802 req->sv1 = newSVsv (pathname); 1745 req_set_path1 (req, oldpath);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1746 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1804 req->mode = (mode_t)mode; 1747 req->int2 = flags;
1805 req->offs = dev; 1748 req->int3 = (long)wd2;
1806 1749
1807 REQ_SEND; 1750 REQ_SEND;
1808} 1751}
1809 1752
1810void 1753void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1754aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1812 PPCODE: 1755 PPCODE:
1813{ 1756{
1814 dREQ; 1757 dREQ;
1758
1759 req->type = EIO_MKNOD;
1760 req->int2 = (mode_t)mode;
1761 req->offs = dev;
1762 req_set_path1 (req, pathname);
1763
1764 REQ_SEND;
1765}
1815 1766
1767void
1768aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1769 ALIAS:
1770 aio_mtouch = EIO_MTOUCH
1771 aio_msync = EIO_MSYNC
1772 PPCODE:
1773{
1774 STRLEN svlen;
1775 char *svptr = SvPVbyte (data, svlen);
1776 UV len = SvUV (length);
1777
1778 if (flags < 0)
1779 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1780
1781 if (offset < 0)
1782 offset += svlen;
1783
1784 if (offset < 0 || offset > svlen)
1785 croak ("offset outside of scalar");
1786
1787 if (!SvOK (length) || len + offset > svlen)
1788 len = svlen - offset;
1789
1790 {
1791 dREQ;
1792
1793 req->type = ix;
1794 req->sv2 = SvREFCNT_inc (data);
1795 req->ptr2 = (char *)svptr + offset;
1796 req->size = len;
1797 req->int1 = flags;
1798
1799 REQ_SEND;
1800 }
1801}
1802
1803void
1804aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1805 PPCODE:
1806{
1807 STRLEN svlen;
1808 char *svptr = SvPVbyte (data, svlen);
1809 UV len = SvUV (length);
1810
1811 if (offset < 0)
1812 offset += svlen;
1813
1814 if (offset < 0 || offset > svlen)
1815 croak ("offset outside of scalar");
1816
1817 if (!SvOK (length) || len + offset > svlen)
1818 len = svlen - offset;
1819
1820 {
1821 dREQ;
1822
1823 req->type = EIO_MLOCK;
1824 req->sv2 = SvREFCNT_inc (data);
1825 req->ptr2 = (char *)svptr + offset;
1826 req->size = len;
1827
1828 REQ_SEND;
1829 }
1830}
1831
1832void
1833aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1834 PPCODE:
1835{
1836 dREQ;
1837
1838 req->type = EIO_MLOCKALL;
1839 req->int1 = flags;
1840
1841 REQ_SEND;
1842}
1843
1844void
1845aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1846 PPCODE:
1847{
1848 int fd = s_fileno_croak (fh, 0);
1849 dREQ;
1850
1851 req->type = EIO_CUSTOM;
1852 req->sv1 = newSVsv (fh);
1853 req->int1 = fd;
1854
1855 req->feed = fiemap;
1856#if HAVE_FIEMAP
1857 /* keep our fingers crossed that the next two types are 64 bit */
1858 req->offs = start;
1859 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1860 req->int2 = flags;
1861 req->int3 = SvOK (count) ? SvIV (count) : -1;
1862#endif
1863
1864 REQ_SEND;
1865}
1866
1867void
1868aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1869 PPCODE:
1870{
1871 char *svptr = 0;
1872
1873 sv_clear_foreign (data);
1874
1875 if (length) /* known length, directly read into scalar */
1876 {
1877 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1878 svptr = sv_grow (data, length + 1);
1879 else if (SvCUR (data) < length)
1880 croak ("length outside of scalar, and cannot grow");
1881 else
1882 svptr = SvPVbyte_nolen (data);
1883 }
1884
1885 {
1886 dREQ;
1887
1888 req->type = EIO_SLURP;
1889 req_set_path1 (req, pathname);
1890 req->offs = offset;
1891 req->size = length;
1892 req->sv2 = SvREFCNT_inc (data);
1893 req->ptr2 = svptr;
1894
1895 if (!SvREADONLY (data))
1896 {
1897 SvREADONLY_on (data);
1898 req->flags |= FLAG_SV2_RO_OFF;
1899 }
1900
1901 REQ_SEND;
1902 }
1903}
1904
1905void
1906aio_busy (double delay, SV *callback = &PL_sv_undef)
1907 PPCODE:
1908{
1909 dREQ;
1910
1816 req->type = REQ_BUSY; 1911 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1912 req->nv1 = delay < 0. ? 0. : delay;
1818 1913
1819 REQ_SEND; 1914 REQ_SEND;
1820} 1915}
1821 1916
1822void 1917void
1823aio_group (SV *callback=&PL_sv_undef) 1918aio_group (SV *callback = &PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1919 PPCODE:
1826{ 1920{
1827 dREQ; 1921 dREQ;
1828 1922
1829 req->type = REQ_GROUP; 1923 req->type = EIO_GROUP;
1830 1924
1925 PUTBACK;
1831 req_send (req); 1926 req_submit (req);
1927 SPAGAIN;
1928
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1929 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1930}
1834 1931
1835void 1932void
1836aio_nop (SV *callback=&PL_sv_undef) 1933aio_nop (SV *callback = &PL_sv_undef)
1934 ALIAS:
1935 aio_nop = EIO_NOP
1936 aio_sync = EIO_SYNC
1837 PPCODE: 1937 PPCODE:
1838{ 1938{
1839 dREQ; 1939 dREQ;
1840 1940
1841 req->type = REQ_NOP; 1941 req->type = ix;
1842 1942
1843 REQ_SEND; 1943 REQ_SEND;
1844} 1944}
1845 1945
1846int 1946int
1847aioreq_pri (int pri = 0) 1947aioreq_pri (int pri = NO_INIT)
1848 PROTOTYPE: ;$
1849 CODE: 1948 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1949 RETVAL = next_pri;
1851 if (items > 0) 1950 if (items > 0)
1852 { 1951 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1952 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1953 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1954 next_pri = pri;
1856 } 1955 }
1857 OUTPUT: 1956 OUTPUT:
1858 RETVAL 1957 RETVAL
1859 1958
1860void 1959void
1861aioreq_nice (int nice = 0) 1960aioreq_nice (int nice = 0)
1862 CODE: 1961 CODE:
1863 nice = next_pri - nice; 1962 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1963 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1964 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1965 next_pri = nice;
1867 1966
1868void 1967void
1869flush () 1968flush ()
1870 PROTOTYPE:
1871 CODE: 1969 CODE:
1872 while (nreqs) 1970 while (eio_nreqs ())
1873 { 1971 {
1874 poll_wait (); 1972 poll_wait ();
1875 poll_cb (); 1973 poll_cb ();
1876 } 1974 }
1877 1975
1878int 1976int
1879poll() 1977poll ()
1880 PROTOTYPE:
1881 CODE: 1978 CODE:
1882 poll_wait (); 1979 poll_wait ();
1883 RETVAL = poll_cb (); 1980 RETVAL = poll_cb ();
1884 OUTPUT: 1981 OUTPUT:
1885 RETVAL 1982 RETVAL
1886 1983
1887int 1984int
1888poll_fileno() 1985poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1986 CODE:
1891 RETVAL = respipe [0]; 1987 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1988 OUTPUT:
1893 RETVAL 1989 RETVAL
1894 1990
1895int 1991int
1896poll_cb(...) 1992poll_cb (...)
1897 PROTOTYPE: 1993 PROTOTYPE:
1898 CODE: 1994 CODE:
1899 RETVAL = poll_cb (); 1995 RETVAL = poll_cb ();
1900 OUTPUT: 1996 OUTPUT:
1901 RETVAL 1997 RETVAL
1902 1998
1903void 1999void
1904poll_wait() 2000poll_wait ()
1905 PROTOTYPE:
1906 CODE: 2001 CODE:
1907 poll_wait (); 2002 poll_wait ();
1908 2003
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 2004int
1947nreqs() 2005nreqs ()
1948 PROTOTYPE:
1949 CODE: 2006 CODE:
1950 RETVAL = nreqs; 2007 RETVAL = eio_nreqs ();
1951 OUTPUT: 2008 OUTPUT:
1952 RETVAL 2009 RETVAL
1953 2010
1954int 2011int
1955nready() 2012nready ()
1956 PROTOTYPE:
1957 CODE: 2013 CODE:
1958 RETVAL = get_nready (); 2014 RETVAL = eio_nready ();
1959 OUTPUT: 2015 OUTPUT:
1960 RETVAL 2016 RETVAL
1961 2017
1962int 2018int
1963npending() 2019npending ()
1964 PROTOTYPE:
1965 CODE: 2020 CODE:
1966 RETVAL = get_npending (); 2021 RETVAL = eio_npending ();
1967 OUTPUT: 2022 OUTPUT:
1968 RETVAL 2023 RETVAL
1969 2024
1970int 2025int
1971nthreads() 2026nthreads ()
1972 PROTOTYPE:
1973 CODE: 2027 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2028 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 2029 OUTPUT:
1978 RETVAL 2030 RETVAL
1979 2031
2032int
2033fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2034 CODE:
2035 RETVAL = posix_fadvise (fh, offset, length, advice);
2036 OUTPUT:
2037 RETVAL
2038
2039IV
2040sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2041 CODE:
2042 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2043 OUTPUT:
2044 RETVAL
2045
2046void
2047mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2048 PPCODE:
2049 sv_clear_foreign (scalar);
2050{
2051 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2052 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2053 if (addr == (void *)-1)
2054 XSRETURN_NO;
2055
2056 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2057
2058 if (!(prot & PROT_WRITE))
2059 SvREADONLY_on (scalar);
2060
2061 XSRETURN_YES;
2062}
2063
2064void
2065munmap (SV *scalar)
2066 CODE:
2067 sv_clear_foreign (scalar);
2068
2069SV *
2070mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
2071 CODE:
2072{
2073 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2074 void *new;
2075
2076 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2077 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2078
2079 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2080
2081 RETVAL = &PL_sv_no;
2082
2083 if (new != (void *)-1)
2084 {
2085 RETVAL = new == (void *)mg->mg_ptr
2086 ? newSVpvn ("0 but true", 10)
2087 : &PL_sv_yes;
2088
2089 mg->mg_ptr = (char *)new;
2090 mg->mg_obj = (SV *)new_length;
2091
2092 SvPVX (scalar) = mg->mg_ptr;
2093 SvCUR_set (scalar, new_length);
2094 }
2095}
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2101 ALIAS:
2102 mprotect = 1
2103 CODE:
2104{
2105 STRLEN svlen;
2106 void *addr = SvPVbyte (scalar, svlen);
2107 STRLEN len = SvUV (length);
2108
2109 if (offset < 0)
2110 offset += svlen;
2111
2112 if (offset < 0 || offset > svlen)
2113 croak ("offset outside of scalar");
2114
2115 if (!SvOK (length) || len + offset > svlen)
2116 len = svlen - offset;
2117
2118 addr = (void *)(((intptr_t)addr) + offset);
2119 eio_page_align (&addr, &len);
2120
2121 switch (ix)
2122 {
2123 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2124 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2125 }
2126}
2127 OUTPUT:
2128 RETVAL
2129
2130int
2131munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2132 CODE:
2133{
2134 STRLEN svlen;
2135 void *addr = SvPVbyte (scalar, svlen);
2136 size_t len = SvUV (length);
2137
2138 if (offset < 0)
2139 offset += svlen;
2140
2141 if (offset < 0 || offset > svlen)
2142 croak ("offset outside of scalar");
2143
2144 if (!SvOK (length) || len + offset > svlen)
2145 len = svlen - offset;
2146
2147 addr = (void *)(((intptr_t)addr) + offset);
2148 eio_page_align (&addr, &len);
2149#if _POSIX_MEMLOCK_RANGE
2150 RETVAL = munlock (addr, len);
2151#else
2152 RETVAL = EIO_ENOSYS ();
2153#endif
2154}
2155 OUTPUT:
2156 RETVAL
2157
2158int
2159munlockall ()
2160 CODE:
2161#if _POSIX_MEMLOCK
2162 munlockall ();
2163#else
2164 RETVAL = EIO_ENOSYS ();
2165#endif
2166 OUTPUT:
2167 RETVAL
2168
2169int
2170splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2171 CODE:
2172{
2173#if HAVE_LINUX_SPLICE
2174 loff_t off_in_, off_out_;
2175 RETVAL = splice (
2176 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2177 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2178 length, flags
2179 );
2180#else
2181 RETVAL = EIO_ENOSYS ();
2182#endif
2183}
2184 OUTPUT:
2185 RETVAL
2186
2187int
2188tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2189 CODE:
2190#if HAVE_LINUX_SPLICE
2191 RETVAL = tee (rfh, wfh, length, flags);
2192#else
2193 RETVAL = EIO_ENOSYS ();
2194#endif
2195 OUTPUT:
2196 RETVAL
2197
2198int
2199pipesize (aio_rfd rfh, int new_size = -1)
2200 PROTOTYPE: $;$
2201 CODE:
2202#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2203 if (new_size >= 0)
2204 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2205 else
2206 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2207#else
2208 errno = ENOSYS;
2209 RETVAL = -1;
2210#endif
2211 OUTPUT:
2212 RETVAL
2213
2214void
2215pipe2 (int flags = 0)
2216 PROTOTYPE: ;$
2217 PPCODE:
2218{
2219 int fd[2];
2220 int res;
2221
2222 if (flags)
2223#if HAVE_PIPE2
2224 res = pipe2 (fd, flags);
2225#else
2226 res = (errno = ENOSYS, -1);
2227#endif
2228 else
2229 res = pipe (fd);
2230
2231 if (!res)
2232 {
2233 EXTEND (SP, 2);
2234 PUSHs (newmortalFH (fd[0], O_RDONLY));
2235 PUSHs (newmortalFH (fd[1], O_WRONLY));
2236 }
2237}
2238
2239void
2240eventfd (unsigned int initval = 0, int flags = 0)
2241 PPCODE:
2242{
2243 int fd;
2244#if HAVE_EVENTFD
2245 fd = eventfd (initval, flags);
2246#else
2247 fd = (errno = ENOSYS, -1);
2248#endif
2249
2250 XPUSHs (newmortalFH (fd, O_RDWR));
2251}
2252
2253void
2254timerfd_create (int clockid, int flags = 0)
2255 PPCODE:
2256{
2257 int fd;
2258#if HAVE_TIMERFD
2259 fd = timerfd_create (clockid, flags);
2260#else
2261 fd = (errno = ENOSYS, -1);
2262#endif
2263
2264 XPUSHs (newmortalFH (fd, O_RDWR));
2265}
2266
2267void
2268timerfd_settime (SV *fh, int flags, NV interval, NV value)
2269 PPCODE:
2270{
2271 int fd = s_fileno_croak (fh, 0);
2272#if HAVE_TIMERFD
2273 int res;
2274 struct itimerspec its, ots;
2275
2276 ts_set (&its.it_interval, interval);
2277 ts_set (&its.it_value , value);
2278 res = timerfd_settime (fd, flags, &its, &ots);
2279
2280 if (!res)
2281 {
2282 EXTEND (SP, 2);
2283 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2284 PUSHs (newSVnv (ts_get (&ots.it_value)));
2285 }
2286#else
2287 errno = ENOSYS;
2288#endif
2289}
2290
2291void
2292timerfd_gettime (SV *fh)
2293 PPCODE:
2294{
2295 int fd = s_fileno_croak (fh, 0);
2296#if HAVE_TIMERFD
2297 int res;
2298 struct itimerspec ots;
2299 res = timerfd_gettime (fd, &ots);
2300
2301 if (!res)
2302 {
2303 EXTEND (SP, 2);
2304 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2305 PUSHs (newSVnv (ts_get (&ots.it_value)));
2306 }
2307#else
2308 errno = ENOSYS;
2309#endif
2310}
2311
2312UV
2313get_fdlimit ()
2314 CODE:
2315#if HAVE_RLIMITS
2316 struct rlimit rl;
2317 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2318 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2319#endif
2320 XSRETURN_UNDEF;
2321 OUTPUT:
2322 RETVAL
2323
2324void
2325min_fdlimit (UV limit = 0x7fffffffU)
2326 CODE:
2327{
2328#if HAVE_RLIMITS
2329 struct rlimit rl;
2330 rlim_t orig_rlim_max;
2331 UV bit;
2332
2333 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2334 goto fail;
2335
2336 if (rl.rlim_cur == RLIM_INFINITY)
2337 XSRETURN_YES;
2338
2339 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2340
2341 if (rl.rlim_cur < limit)
2342 {
2343 rl.rlim_cur = limit;
2344
2345 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2346 rl.rlim_max = rl.rlim_cur;
2347 }
2348
2349 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2350 XSRETURN_YES;
2351
2352 if (errno == EPERM)
2353 {
2354 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2355 /* our limit overflows a system-wide limit */
2356 /* try an adaptive algorithm, but do not lower the hardlimit */
2357 rl.rlim_max = 0;
2358 for (bit = 0x40000000U; bit; bit >>= 1)
2359 {
2360 rl.rlim_max |= bit;
2361 rl.rlim_cur = rl.rlim_max;
2362
2363 /* nevr decrease the hard limit */
2364 if (rl.rlim_max < orig_rlim_max)
2365 break;
2366
2367 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2368 rl.rlim_max &= ~bit; /* too high, remove bit again */
2369 }
2370
2371 /* now, raise the soft limit to the max permitted */
2372 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2373 {
2374 rl.rlim_cur = rl.rlim_max;
2375 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2376 errno = EPERM;
2377 }
2378 }
2379#endif
2380 fail:
2381 XSRETURN_UNDEF;
2382}
2383
2384void _on_next_submit (SV *cb)
2385 CODE:
2386 SvREFCNT_dec (on_next_submit);
2387 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2388
1980PROTOTYPES: DISABLE 2389PROTOTYPES: DISABLE
2390
2391MODULE = IO::AIO PACKAGE = IO::AIO::WD
2392
2393BOOT:
2394{
2395 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2396 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2397}
2398
2399void
2400DESTROY (SV *self)
2401 CODE:
2402{
2403 aio_wd wd = SvAIO_WD (self);
2404#if HAVE_AT
2405 {
2406 SV *callback = &PL_sv_undef;
2407 dREQ; /* clobbers next_pri :/ */
2408 next_pri = req->pri; /* restore next_pri */
2409 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2410 req->type = EIO_WD_CLOSE;
2411 req->wd = wd;
2412 REQ_SEND;
2413 }
2414#else
2415 eio_wd_close_sync (wd);
2416#endif
2417}
1981 2418
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2419MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 2420
1984void 2421void
1985cancel (aio_req_ornot req) 2422cancel (aio_req_ornot req)
1986 CODE: 2423 CODE:
1987 req_cancel (req); 2424 eio_cancel (req);
1988 2425
1989void 2426void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2427cb (aio_req_ornot req, SV *callback = NO_INIT)
1991 CODE: 2428 PPCODE:
2429{
2430 if (GIMME_V != G_VOID)
2431 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2432
2433 if (items > 1)
2434 {
2435 SV *cb_cv = get_cb (callback);
2436
1992 SvREFCNT_dec (req->callback); 2437 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 2438 req->callback = SvREFCNT_inc (cb_cv);
2439 }
2440}
1994 2441
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2442MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 2443
1997void 2444void
1998add (aio_req grp, ...) 2445add (aio_req grp, ...)
1999 PPCODE: 2446 PPCODE:
2000{ 2447{
2001 int i; 2448 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 2449
2007 if (grp->int1 == 2) 2450 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2451 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 2452
2010 for (i = 1; i < items; ++i ) 2453 for (i = 1; i < items; ++i )
2011 { 2454 {
2455 aio_req req;
2456
2012 if (GIMME_V != G_VOID) 2457 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2458 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 2459
2015 req = SvAIO_REQ (ST (i)); 2460 req = SvAIO_REQ (ST (i));
2016 2461
2017 if (req) 2462 if (req)
2018 { 2463 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 2464 }
2031} 2465}
2032 2466
2033void 2467void
2034cancel_subs (aio_req_ornot req) 2468cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 2477 AV *av;
2044 2478
2045 grp->errorno = errno; 2479 grp->errorno = errno;
2046 2480
2047 av = newAV (); 2481 av = newAV ();
2482 av_extend (av, items - 1);
2048 2483
2049 for (i = 1; i < items; ++i ) 2484 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 2485 av_push (av, newSVsv (ST (i)));
2051 2486
2052 SvREFCNT_dec (grp->sv1); 2487 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 2494 grp->errorno = errorno;
2060 2495
2061void 2496void
2062limit (aio_req grp, int limit) 2497limit (aio_req grp, int limit)
2063 CODE: 2498 CODE:
2064 grp->int2 = limit; 2499 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 2500
2067void 2501void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 2502feed (aio_req grp, SV *callback = &PL_sv_undef)
2069 CODE: 2503 CODE:
2070{ 2504{
2071 SvREFCNT_dec (grp->sv2); 2505 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 2506 grp->sv2 = newSVsv (callback);
2507 grp->feed = aio_grp_feed;
2073 2508
2074 if (grp->int2 <= 0) 2509 if (grp->int2 <= 0)
2075 grp->int2 = 2; 2510 grp->int2 = 2;
2076 2511
2077 aio_grp_feed (grp); 2512 eio_grp_limit (grp, grp->int2);
2078} 2513}
2079 2514

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