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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC vs.
Revision 1.252 by root, Sat Jan 6 02:11:10 2018 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
29# undef send 56 #undef send
30# undef recv 57 #undef recv
31# undef stat 58 #undef stat
59 #undef lstat
32# undef fstat 60 #undef fstat
33# define lstat stat
34# undef truncate 61 #undef truncate
35# undef ftruncate 62 #undef ftruncate
36# undef open 63 #undef open
64 #undef link
37# undef close 65 #undef close
38# undef unlink 66 #undef unlink
67 #undef mkdir
39# undef rmdir 68 #undef rmdir
40# undef rename 69 #undef rename
41# undef lseek 70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
42 80
43# define chown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 82 #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 83
57#else 84#else
58 85
59# include "autoconf/config.h"
60# include <sys/time.h> 86 #include <sys/time.h>
61# include <sys/select.h> 87 #include <sys/select.h>
62# include <unistd.h> 88 #include <unistd.h>
63# include <utime.h> 89 #include <utime.h>
64# include <signal.h> 90 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 91
67#endif 92 #define EIO_STRUCT_STAT Stat_t
68 93
69#if HAVE_SENDFILE 94#endif
70# if __linux 95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_RLIMITS
71# include <sys/sendfile.h> 112 #include <sys/time.h>
72# elif __freebsd
73# include <sys/socket.h> 113 #include <sys/resource.h>
74# include <sys/uio.h> 114#endif
75# elif __hpux 115
76# include <sys/socket.h> 116typedef SV SV8; /* byte-sv, used for argument-checking */
77# elif __solaris /* not yet */ 117typedef int aio_rfd; /* read file desriptor */
78# include <sys/sendfile.h> 118typedef int aio_wfd; /* write file descriptor */
119
120static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
121
122#define EIO_REQ_MEMBERS \
123 SV *callback; \
124 SV *sv1, *sv2; \
125 SV *sv3, *sv4; \
126 STRLEN stroffset; \
127 SV *self;
128
129#define EIO_NO_WRAPPERS 1
130
131#include "libeio/eio.h"
132
133static int req_invoke (eio_req *req);
134#define EIO_FINISH(req) req_invoke (req)
135static void req_destroy (eio_req *grp);
136#define EIO_DESTROY(req) req_destroy (req)
137
138#include "libeio/eio.c"
139
140#if !HAVE_POSIX_FADVISE
141# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
142#endif
143
144#if !HAVE_POSIX_MADVISE
145# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef MAP_ANONYMOUS
149# ifdef MAP_ANON
150# define MAP_ANONYMOUS MAP_ANON
79# else 151# else
80# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 153# endif
82#endif 154#endif
83 155
84/* number of seconds after which idle threads exit */ 156/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 157/* also provides const_iv_ and const_niv_ macros for them */
158#include "def0.h"
86 159
87/* used for struct dirent, AIX doesn't provide it */ 160#ifndef makedev
88#ifndef NAME_MAX 161# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 162#endif
91 163#ifndef major
92/* buffer size for various temporary buffers */ 164# 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 165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
101 169
102#define dBUF \ 170#if PAGESIZE <= 0
103 char *aio_buf; \ 171# define PAGESIZE sysconf (_SC_PAGESIZE)
104 X_LOCK (wrklock); \ 172#endif
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 173
106 X_UNLOCK (wrklock); \ 174/*****************************************************************************/
107 if (!aio_buf) \ 175
176#if !_POSIX_MAPPED_FILES
177# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
178# define munmap(addr,length) EIO_ENOSYS ()
179#endif
180
181#if !_POSIX_MEMORY_PROTECTION
182# define mprotect(addr,len,prot) EIO_ENOSYS ()
183#endif
184
185#define FOREIGN_MAGIC PERL_MAGIC_ext
186
187static int ecb_cold
188mmap_free (pTHX_ SV *sv, MAGIC *mg)
189{
190 int old_errno = errno;
191 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
192 errno = old_errno;
193
194 mg->mg_obj = 0; /* just in case */
195
196 SvREADONLY_off (sv);
197
198 if (SvPVX (sv) != mg->mg_ptr)
199 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
200
201 SvCUR_set (sv, 0);
202 SvPVX (sv) = 0;
203 SvOK_off (sv);
204
108 return -1; 205 return 0;
206}
109 207
110typedef SV SV8; /* byte-sv, used for argument-checking */ 208static MGVTBL mmap_vtbl = {
111 209 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}; 210};
129 211
130#define AIO_REQ_KLASS "IO::AIO::REQ" 212static int ecb_cold
131#define AIO_GRP_KLASS "IO::AIO::GRP" 213sysfree_free (pTHX_ SV *sv, MAGIC *mg)
132
133typedef struct aio_cb
134{ 214{
135 struct aio_cb *volatile next; 215 free (mg->mg_ptr);
216 mg->mg_obj = 0; /* just in case */
136 217
137 SV *callback; 218 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;
144 219
145 STRLEN stroffset; 220 if (SvPVX (sv) != mg->mg_ptr)
146 int type; 221 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 222
151 unsigned char flags; 223 SvCUR_set (sv, 0);
152 unsigned char pri; 224 SvPVX (sv) = 0;
225 SvOK_off (sv);
153 226
154 SV *self; /* the perl counterpart of this request, if any */ 227 return 0;
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 228}
156} aio_cb;
157 229
158enum { 230static MGVTBL sysfree_vtbl = {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */ 231 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}; 232};
163 233
164typedef aio_cb *aio_req; 234/*****************************************************************************/
165typedef aio_cb *aio_req_ornot;
166 235
167enum { 236/* helper: set scalar to foreign ptr with custom free */
168 PRI_MIN = -4, 237static void
169 PRI_MAX = 4, 238sv_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{ 239{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 240 sv_force_normal (sv);
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187 241
188static thread_t main_tid; 242 /* we store the length in mg_obj, as namlen is I32 :/ */
189static int main_sig; 243 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
190static int block_sig_level; 244 ->mg_obj = (SV *)length;
191 245
192void block_sig () 246 SvUPGRADE (sv, SVt_PV); /* nop... */
193{
194 sigset_t ss;
195 247
196 if (block_sig_level++) 248 if (SvLEN (sv))
249 Safefree (SvPVX (sv));
250
251 SvPVX (sv) = (char *)addr;
252 SvCUR_set (sv, length);
253 SvLEN_set (sv, 0);
254 SvPOK_only (sv);
255}
256
257static void
258sv_clear_foreign (SV *sv)
259{
260 /* todo: iterate over magic and only free ours, but of course */
261 /* the perl5porters will call that (correct) behaviour buggy */
262 sv_unmagic (sv, FOREIGN_MAGIC);
263}
264
265/*****************************************************************************/
266
267static void
268fiemap (eio_req *req)
269{
270 req->result = -1;
271
272#if HAVE_FIEMAP
273 /* assume some c99 */
274 struct fiemap *fiemap = 0;
275 size_t end_offset;
276 int count = req->int3;
277
278 req->flags |= EIO_FLAG_PTR1_FREE;
279
280 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
281 /* increase in 3.5kb steps */
282 if (count < 0)
283 count = 8;
284
285 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
286 errno = ENOMEM;
287 if (!fiemap)
197 return; 288 return;
198 289
199 if (!main_sig) 290 req->ptr1 = fiemap;
291
292 fiemap->fm_start = req->offs;
293 fiemap->fm_length = req->size;
294 fiemap->fm_flags = req->int2;
295 fiemap->fm_extent_count = count;
296
297 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 298 return;
201 299
202 sigemptyset (&ss); 300 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 301 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 302 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 303 goto done;
206 304
207void unblock_sig () 305 /* else we have to loop -
208{ 306 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 307 * number of extents needed, but linux often feels like not returning all
308 * extents, without telling us it left any out. this complicates
309 * this quite a bit.
310 */
210 311
211 if (--block_sig_level) 312 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 313
214 if (!main_sig) 314 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 { 315 {
247 closedir (wrk->dirp); 316 /* 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; 317 char scratch[3072];
249 } 318 struct fiemap *incmap = (struct fiemap *)scratch;
250 319
251 if (wrk->dbuf) 320 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 321 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 322 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 323 incmap->fm_flags = fiemap->fm_flags;
255 } 324 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 325
258static void worker_free (worker *wrk) 326 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe_osf [2], respipe [2] = { -1, -1 };
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0; 327 return;
353 328
354 --q->size; 329 if (!incmap->fm_mapped_extents)
330 goto done;
355 331
356 for (pri = NUM_PRI; pri--; ) 332 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 333 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 334 errno = ENOMEM;
359
360 if (req) 335 if (!fiemap)
336 return;
337
338 req->ptr1 = fiemap;
339
340 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 341 {
362 if (!(q->qs[pri] = req->next)) 342 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 343
365 return req; 344 if (e->fe_logical + e->fe_length >= end_offset)
345 goto done;
346
347 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
348
349 if (e->fe_flags & FIEMAP_EXTENT_LAST)
350 goto done;
351
366 } 352 }
367 } 353 }
368 354
369 abort (); 355done:
370} 356 req->result = 0;
371 357
372static int poll_cb (); 358#else
373static int req_invoke (aio_req req); 359 errno = ENOSYS;
360#endif
361}
362
363/*****************************************************************************/
364
365enum {
366 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
367};
368
369typedef eio_req *aio_req;
370typedef eio_req *aio_req_ornot;
371typedef eio_wd aio_wd;
372
373static SV *on_next_submit;
374static int next_pri = EIO_PRI_DEFAULT;
375static int max_outstanding;
376
377static s_epipe respipe;
378
374static void req_destroy (aio_req req); 379static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 380static void req_cancel (aio_req req);
376 381
382static void
383want_poll (void)
384{
385 /* write a dummy byte to the pipe so fh becomes ready */
386 s_epipe_signal (&respipe);
387}
388
389static void
390done_poll (void)
391{
392 /* read any signals sent by the worker threads */
393 s_epipe_drain (&respipe);
394}
395
377/* must be called at most once */ 396/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 397static SV *
398req_sv (aio_req req, HV *stash)
379{ 399{
380 if (!req->self) 400 if (!req->self)
381 { 401 {
382 req->self = (SV *)newHV (); 402 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 403 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 404 }
385 405
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 406 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 407}
388 408
389static aio_req SvAIO_REQ (SV *sv) 409static SV *
410newSVaio_wd (aio_wd wd)
411{
412 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
413}
414
415static aio_req
416SvAIO_REQ (SV *sv)
390{ 417{
391 MAGIC *mg; 418 MAGIC *mg;
392 419
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 420 if (!SvROK (sv)
421 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
422 || (SvSTASH (SvRV (sv)) != aio_grp_stash
423 && SvSTASH (SvRV (sv)) != aio_req_stash
424 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 425 croak ("object of class IO::AIO::REQ expected");
395 426
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 427 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 428
398 return mg ? (aio_req)mg->mg_ptr : 0; 429 return mg ? (aio_req)mg->mg_ptr : 0;
399} 430}
400 431
432static aio_wd
433SvAIO_WD (SV *sv)
434{
435 if (!SvROK (sv)
436 || SvTYPE (SvRV (sv)) != SVt_PVMG
437 || SvSTASH (SvRV (sv)) != aio_wd_stash)
438 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
439
440 return (aio_wd)(long)SvIVX (SvRV (sv));
441}
442
443static SV *
444newmortalFH (int fd, int flags)
445{
446 if (fd < 0)
447 return &PL_sv_undef;
448
449 GV *gv = (GV *)sv_newmortal ();
450 char sym[64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
454 gv_init (gv, aio_stash, sym, symlen, 0);
455
456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 fd
462 );
463
464 return do_open (gv, sym, symlen, 0, 0, 0, 0)
465 ? (SV *)gv : &PL_sv_undef;
466}
467
468static void
401static void aio_grp_feed (aio_req grp) 469aio_grp_feed (aio_req grp)
402{ 470{
403 block_sig (); 471 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 472 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 473 dSP;
412 474
413 ENTER; 475 ENTER;
414 SAVETMPS; 476 SAVETMPS;
415 PUSHMARK (SP); 477 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 478 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 479 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 480 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 481 SPAGAIN;
420 FREETMPS; 482 FREETMPS;
421 LEAVE; 483 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 } 484 }
432
433 unblock_sig ();
434} 485}
435 486
436static void aio_grp_dec (aio_req grp) 487static void
488req_submit (eio_req *req)
437{ 489{
438 --grp->size; 490 eio_submit (req);
439 491
440 /* call feeder, if applicable */ 492 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 493 {
446 block_sig (); 494 dSP;
495 SV *cb = sv_2mortal (on_next_submit);
447 496
448 if (!req_invoke (grp)) 497 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 498
455 req_destroy (grp); 499 PUSHMARK (SP);
456 unblock_sig (); 500 PUTBACK;
501 call_sv (cb, G_DISCARD | G_EVAL);
457 } 502 }
458} 503}
459 504
505static int
460static int req_invoke (aio_req req) 506req_invoke (eio_req *req)
461{ 507{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 508 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 509 SvREADONLY_off (req->sv2);
466 510
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 511 if (!EIO_CANCELLED (req) && req->callback)
468 { 512 {
513 dSP;
514 static SV *sv_result_cache; /* caches the result integer SV */
515 SV *sv_result;
516
469 ENTER; 517 ENTER;
470 SAVETMPS; 518 SAVETMPS;
471 PUSHMARK (SP); 519 PUSHMARK (SP);
472 EXTEND (SP, 1); 520 EXTEND (SP, 1);
473 521
522 /* do not recreate the result IV from scratch each time */
523 if (expect_true (sv_result_cache))
524 {
525 sv_result = sv_result_cache; sv_result_cache = 0;
526 SvIV_set (sv_result, req->result);
527 SvIOK_only (sv_result);
528 }
529 else
530 {
531 sv_result = newSViv (req->result);
532 SvREADONLY_on (sv_result);
533 }
534
474 switch (req->type) 535 switch (req->type)
475 { 536 {
537 case EIO_WD_OPEN:
538 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
539 break;
540
476 case REQ_READDIR: 541 case EIO_READDIR:
477 { 542 {
478 SV *rv = &PL_sv_undef; 543 SV *rv = &PL_sv_undef;
479 544
480 if (req->result >= 0) 545 if (req->result >= 0)
481 { 546 {
482 int i; 547 int i;
483 char *buf = req->ptr2; 548 char *names = (char *)req->ptr2;
549 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 550 AV *av = newAV ();
485 551
486 av_extend (av, req->result - 1); 552 av_extend (av, req->result - 1);
487 553
488 for (i = 0; i < req->result; ++i) 554 for (i = 0; i < req->result; ++i)
489 { 555 {
490 SV *sv = newSVpv (buf, 0); 556 if (req->int1 & EIO_READDIR_DENTS)
557 {
558 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 559
560 if (req->int1 & EIO_READDIR_CUSTOM2)
561 {
562 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
563 AV *avent = newAV ();
564
565 av_extend (avent, 2);
566
567 if (!sv_type [ent->type])
568 {
569 sv_type [ent->type] = newSViv (ent->type);
570 SvREADONLY_on (sv_type [ent->type]);
571 }
572
573 av_store (avent, 0, namesv);
574 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
575 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
576
577 av_store (av, i, newRV_noinc ((SV *)avent));
578 }
579 else
492 av_store (av, i, sv); 580 av_store (av, i, namesv);
581
582 ++ent;
583 }
584 else
585 {
586 SV *name = newSVpv (names, 0);
587 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 588 names += SvCUR (name) + 1;
589 }
494 } 590 }
495 591
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 592 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 593 }
498 594
499 PUSHs (rv); 595 PUSHs (rv);
596
597 if (req->int1 & EIO_READDIR_CUSTOM1)
598 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 599 }
501 break; 600 break;
502 601
503 case REQ_OPEN: 602 case EIO_OPEN:
603 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
604 break;
605
606 case EIO_STATVFS:
607 case EIO_FSTATVFS:
504 { 608 {
505 /* convert fd to fh */ 609 SV *rv = &PL_sv_undef;
506 SV *fh; 610
611#ifndef _WIN32
612 if (req->result >= 0)
613 {
614 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
615 HV *hv = newHV ();
616 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
617 * chooses to make it a struct.
618 */
619 unsigned long fsid = 0;
620 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
507 621
508 PUSHs (sv_2mortal (newSViv (req->result))); 622 rv = sv_2mortal (newRV_noinc ((SV *)hv));
509 PUTBACK;
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
511 SPAGAIN;
512 623
513 fh = POPs; 624 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
514 PUSHMARK (SP); 625 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
626 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
627 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
628 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
629 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
630 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
631 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
632 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
633 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
634 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
635 }
636#endif
637
515 XPUSHs (fh); 638 PUSHs (rv);
516 } 639 }
640
517 break; 641 break;
518 642
519 case REQ_GROUP: 643 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 644 req->int1 = 2; /* mark group as finished */
521 645
522 if (req->sv1) 646 if (req->sv1)
523 { 647 {
524 int i; 648 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 652 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 653 PUSHs (*av_fetch (av, i, 0));
530 } 654 }
531 break; 655 break;
532 656
533 case REQ_NOP: 657 case EIO_NOP:
534 case REQ_BUSY: 658 case EIO_BUSY:
535 break; 659 break;
536 660
537 case REQ_READLINK: 661 case EIO_READLINK:
662 case EIO_REALPATH:
538 if (req->result > 0) 663 if (req->result > 0)
664 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
665 break;
666
667 case EIO_STAT:
668 case EIO_LSTAT:
669 case EIO_FSTAT:
670 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
671
672 if (!(PL_laststatval = req->result))
673 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
674 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
675
676 PUSHs (sv_result);
677 break;
678
679 case EIO_SEEK:
680 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
681 break;
682
683 case EIO_READ:
684 {
685 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
686 *SvEND (req->sv2) = 0;
687 SvPOK_only (req->sv2);
688 SvSETMAGIC (req->sv2);
689 PUSHs (sv_result);
690 }
691 break;
692
693 case EIO_SLURP:
694 {
695 if (req->result >= 0)
696 {
697 /* if length was originally not known, we steal the malloc'ed memory */
698 if (req->flags & EIO_FLAG_PTR2_FREE)
699 {
700 req->flags &= ~EIO_FLAG_PTR2_FREE;
701 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
702 }
703 else
704 {
705 SvCUR_set (req->sv2, req->result);
706 *SvEND (req->sv2) = 0;
707 SvPOK_only (req->sv2);
708 }
709
710 SvSETMAGIC (req->sv2);
711 }
712
713 PUSHs (sv_result);
714 }
715 break;
716
717 case EIO_CUSTOM:
718 if (req->feed == fiemap)
539 { 719 {
540 SvCUR_set (req->sv2, req->result); 720#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 721 if (!req->result)
722 {
723 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
724
725 if (fiemap->fm_extent_count)
726 {
727 AV *av = newAV ();
728 int i;
729
730 while (fiemap->fm_mapped_extents)
731 {
732 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
733 AV *ext_av = newAV ();
734
735 av_store (ext_av, 3, newSVuv (extent->fe_flags));
736 av_store (ext_av, 2, newSVval64 (extent->fe_length));
737 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
738 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
739
740 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
741 }
742
743 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
744 }
745 else
746 {
747 SvIV_set (sv_result, fiemap->fm_mapped_extents);
748 PUSHs (sv_result);
749 }
750 }
751#endif
543 } 752 }
753 else
754 PUSHs (sv_result);
544 break; 755 break;
545 756
546 case REQ_STAT: 757 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 758 if (req->result > 0)
548 case REQ_FSTAT: 759 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 760 /* 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;
560 761
561 default: 762 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 763 PUSHs (sv_result);
563 break; 764 break;
564 } 765 }
565 766
566 errno = req->errorno; 767 errno = req->errorno;
567 768
568 PUTBACK; 769 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 770 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 771 SPAGAIN;
772
773 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
774 SvREFCNT_dec (sv_result);
775 else
776 sv_result_cache = sv_result;
571 777
572 FREETMPS; 778 FREETMPS;
573 LEAVE; 779 LEAVE;
780
781 PUTBACK;
574 } 782 }
575 783
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); 784 return !!SvTRUE (ERRSV);
591} 785}
592 786
787static void
593static void req_destroy (aio_req req) 788req_destroy (aio_req req)
594{ 789{
595 if (req->self) 790 if (req->self)
596 { 791 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 792 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 793 SvREFCNT_dec (req->self);
599 } 794 }
600 795
601 SvREFCNT_dec (req->sv1); 796 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 797 SvREFCNT_dec (req->sv2);
798 SvREFCNT_dec (req->sv3);
799 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 800 SvREFCNT_dec (req->callback);
604 801
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 802 free (req);
609} 803}
610 804
805static void
611static void req_cancel_subs (aio_req grp) 806req_cancel_subs (aio_req grp)
612{ 807{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 808 if (grp->type != EIO_GROUP)
616 return; 809 return;
617 810
618 SvREFCNT_dec (grp->sv2); 811 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 812 grp->sv2 = 0;
620 813
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 814 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 815}
624 816
625static void req_cancel (aio_req req) 817static void ecb_cold
818create_respipe (void)
626{ 819{
627 req->flags |= FLAG_CANCELLED; 820 if (s_epipe_renew (&respipe))
628 821 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 822}
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
637 823
638static void 824static void
639create_respipe () 825poll_wait (void)
640{ 826{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe))
650#endif
651 croak ("unable to initialize result pipe");
652
653 if (old_readfd >= 0)
654 {
655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
657
658 respipe_close (respipe [0]);
659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674}
675
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait ()
772{
773 fd_set rfd;
774
775 while (nreqs) 827 while (eio_nreqs ())
776 { 828 {
777 int size; 829 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 830
831 X_LOCK (EIO_POOL->reslock);
779 size = res_queue.size; 832 size = EIO_POOL->res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 833 X_UNLOCK (EIO_POOL->reslock);
781 834
782 if (size) 835 if (size)
783 return; 836 return;
784 837
785 maybe_start_thread (); 838 etp_maybe_start_thread (EIO_POOL);
786 839
787 FD_ZERO (&rfd); 840 s_epipe_wait (&respipe);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
791 } 841 }
792} 842}
793 843
794static int poll_cb () 844static int
845poll_cb (void)
795{ 846{
796 dSP;
797 int count = 0;
798 int maxreqs = max_poll_reqs;
799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
807
808 for (;;) 847 for (;;)
809 { 848 {
810 for (;;) 849 int res = eio_poll ();
850
851 if (res > 0)
852 croak (0);
853
854 if (!max_outstanding || max_outstanding > eio_nreqs ())
855 return res;
856
857 poll_wait ();
858 }
859}
860
861static void ecb_cold
862reinit (void)
863{
864 create_respipe ();
865
866 if (eio_init (want_poll, done_poll) < 0)
867 croak ("IO::AIO: unable to initialise eio library");
868}
869
870/*****************************************************************************/
871
872static SV *
873get_cb (SV *cb_sv)
874{
875 SvGETMAGIC (cb_sv);
876 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
877}
878
879static aio_req ecb_noinline
880dreq (SV *callback)
881{
882 SV *cb_cv;
883 aio_req req;
884 int req_pri = next_pri;
885 next_pri = EIO_PRI_DEFAULT;
886
887 cb_cv = get_cb (callback);
888
889 req = calloc (sizeof (*req), 1);
890 if (!req)
891 croak ("out of memory during eio_req allocation");
892
893 req->callback = SvREFCNT_inc (cb_cv);
894 req->pri = req_pri;
895
896 return req;
897}
898
899#define dREQ \
900 aio_req req = dreq (callback); \
901
902#define REQ_SEND \
903 PUTBACK; \
904 req_submit (req); \
905 SPAGAIN; \
906 \
907 if (GIMME_V != G_VOID) \
908 XPUSHs (req_sv (req, aio_req_stash));
909
910ecb_inline void
911req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
912{
913 if (expect_false (SvROK (path)))
914 {
915 SV *rv = SvRV (path);
916 SV *wdob;
917
918 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
811 { 919 {
812 maybe_start_thread (); 920 path = AvARRAY (rv)[1];
921 wdob = AvARRAY (rv)[0];
813 922
814 X_LOCK (reslock); 923 if (SvOK (wdob))
815 req = reqq_shift (&res_queue);
816
817 if (req)
818 { 924 {
819 --npending; 925 *wd = SvAIO_WD (wdob);
820 926 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
821 if (!res_queue.size)
822 {
823 /* read any signals sent by the worker threads */
824 char buf [4];
825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 } 927 }
842 else 928 else
843 { 929 *wd = EIO_INVALID_WD;
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0);
849 }
850
851 count++;
852 }
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
865 }
866 } 930 }
931 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
932 {
933 *wd = (aio_wd)(long)SvIVX (rv);
934 *wdsv = SvREFCNT_inc_NN (rv);
935 *ptr = ".";
936 return; /* path set to "." */
937 }
938 else
939 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
940 }
867 941
868 if (nreqs <= max_outstanding) 942 *pathsv = newSVsv (path);
943 *ptr = SvPVbyte_nolen (*pathsv);
944}
945
946static void ecb_noinline
947req_set_path1 (aio_req req, SV *path)
948{
949 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
950}
951
952static void ecb_noinline
953req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
954{
955 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
956
957 switch (SvTYPE (rv))
958 {
959 case SVt_PVIO:
960 case SVt_PVLV:
961 case SVt_PVGV:
962 req->type = type_fh;
963 req->sv1 = newSVsv (fh_or_path);
964 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
869 break; 965 break;
870 966
871 poll_wait (); 967 default:
872 968 req->type = type_path;
873 ++maxreqs; 969 req_set_path1 (req, fh_or_path);
970 break;
874 } 971 }
875
876 unblock_sig ();
877 return count;
878} 972}
879 973
880/*****************************************************************************/ 974XS(boot_IO__AIO) ecb_cold;
881/* work around various missing functions */
882 975
883#if !HAVE_PREADWRITE
884# define pread aio_pread
885# define pwrite aio_pwrite
886
887/*
888 * make our pread/pwrite safe against themselves, but not against
889 * normal read/write by using a mutex. slows down execution a lot,
890 * but that's your problem, not mine.
891 */
892static mutex_t preadwritelock = X_MUTEX_INIT;
893
894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
895{
896 ssize_t res;
897 off_t ooffset;
898
899 X_LOCK (preadwritelock);
900 ooffset = lseek (fd, 0, SEEK_CUR);
901 lseek (fd, offset, SEEK_SET);
902 res = read (fd, buf, count);
903 lseek (fd, ooffset, SEEK_SET);
904 X_UNLOCK (preadwritelock);
905
906 return res;
907}
908
909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
910{
911 ssize_t res;
912 off_t ooffset;
913
914 X_LOCK (preadwritelock);
915 ooffset = lseek (fd, 0, SEEK_CUR);
916 lseek (fd, offset, SEEK_SET);
917 res = write (fd, buf, count);
918 lseek (fd, offset, SEEK_SET);
919 X_UNLOCK (preadwritelock);
920
921 return res;
922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
951#endif
952
953#if !HAVE_FDATASYNC
954# define fdatasync fsync
955#endif
956
957#if !HAVE_READAHEAD
958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
959
960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
961{
962 size_t todo = count;
963 dBUF;
964
965 while (todo > 0)
966 {
967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
968
969 pread (fd, aio_buf, len, offset);
970 offset += len;
971 todo -= len;
972 }
973
974 errno = 0;
975 return count;
976}
977
978#endif
979
980#if !HAVE_READDIR_R
981# define readdir_r aio_readdir_r
982
983static mutex_t readdirlock = X_MUTEX_INIT;
984
985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
986{
987 X_DIRENT *e;
988 int errorno;
989
990 X_LOCK (readdirlock);
991
992 e = readdir (dirp);
993 errorno = errno;
994
995 if (e)
996 {
997 *res = ent;
998 strcpy (ent->d_name, e->d_name);
999 }
1000 else
1001 *res = 0;
1002
1003 X_UNLOCK (readdirlock);
1004
1005 errno = errorno;
1006 return e ? 0 : -1;
1007}
1008#endif
1009
1010/* sendfile always needs emulation */
1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1012{
1013 ssize_t res;
1014
1015 if (!count)
1016 return 0;
1017
1018#if HAVE_SENDFILE
1019# if __linux
1020 res = sendfile (ofd, ifd, &offset, count);
1021
1022# elif __freebsd
1023 /*
1024 * Of course, the freebsd sendfile is a dire hack with no thoughts
1025 * wasted on making it similar to other I/O functions.
1026 */
1027 {
1028 off_t sbytes;
1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1030
1031 if (res < 0 && sbytes)
1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1033 res = sbytes;
1034 }
1035
1036# elif __hpux
1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
1038
1039# elif __solaris
1040 {
1041 struct sendfilevec vec;
1042 size_t sbytes;
1043
1044 vec.sfv_fd = ifd;
1045 vec.sfv_flag = 0;
1046 vec.sfv_off = offset;
1047 vec.sfv_len = count;
1048
1049 res = sendfilev (ofd, &vec, 1, &sbytes);
1050
1051 if (res < 0 && sbytes)
1052 res = sbytes;
1053 }
1054
1055# endif
1056#else
1057 res = -1;
1058 errno = ENOSYS;
1059#endif
1060
1061 if (res < 0
1062 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1063#if __solaris
1064 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1065#endif
1066 )
1067 )
1068 {
1069 /* emulate sendfile. this is a major pain in the ass */
1070 dBUF;
1071
1072 res = 0;
1073
1074 while (count)
1075 {
1076 ssize_t cnt;
1077
1078 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1079
1080 if (cnt <= 0)
1081 {
1082 if (cnt && !res) res = -1;
1083 break;
1084 }
1085
1086 cnt = write (ofd, aio_buf, cnt);
1087
1088 if (cnt <= 0)
1089 {
1090 if (cnt && !res) res = -1;
1091 break;
1092 }
1093
1094 offset += cnt;
1095 res += cnt;
1096 count -= cnt;
1097 }
1098 }
1099
1100 return res;
1101}
1102
1103/* read a full directory */
1104static void scandir_ (aio_req req, worker *self)
1105{
1106 DIR *dirp;
1107 union
1108 {
1109 X_DIRENT d;
1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1111 } *u;
1112 X_DIRENT *entp;
1113 char *name, *names;
1114 int memlen = 4096;
1115 int memofs = 0;
1116 int res = 0;
1117
1118 X_LOCK (wrklock);
1119 self->dirp = dirp = opendir (req->ptr1);
1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
1124
1125 if (dirp && u && names)
1126 for (;;)
1127 {
1128 errno = 0;
1129 readdir_r (dirp, &u->d, &entp);
1130
1131 if (!entp)
1132 break;
1133
1134 name = entp->d_name;
1135
1136 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1137 {
1138 int len = strlen (name) + 1;
1139
1140 res++;
1141
1142 while (memofs + len > memlen)
1143 {
1144 memlen *= 2;
1145 X_LOCK (wrklock);
1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
1149 if (!names)
1150 break;
1151 }
1152
1153 memcpy (names + memofs, name, len);
1154 memofs += len;
1155 }
1156 }
1157
1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162}
1163
1164/*****************************************************************************/
1165
1166X_THREAD_PROC (aio_proc)
1167{
1168 {//D
1169 aio_req req;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
1177 {
1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1179
1180 X_LOCK (reqlock);
1181
1182 for (;;)
1183 {
1184 self->req = req = reqq_shift (&req_queue);
1185
1186 if (req)
1187 break;
1188
1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
1210 }
1211
1212 --nready;
1213
1214 X_UNLOCK (reqlock);
1215
1216 errno = 0; /* strictly unnecessary */
1217
1218 if (!(req->flags & FLAG_CANCELLED))
1219 switch (req->type)
1220 {
1221 case REQ_READ: req->result = req->offs >= 0
1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
1227
1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1230
1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1243 case REQ_CLOSE: req->result = close (req->int1); break;
1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1252
1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
1255 case REQ_READDIR: scandir_ (req, self); break;
1256
1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
1261 {
1262 struct timeval tv;
1263
1264 tv.tv_sec = req->nv1;
1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1266
1267 req->result = select (0, 0, 0, 0, &tv);
1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
1295
1296 case REQ_GROUP:
1297 case REQ_NOP:
1298 break;
1299
1300 case REQ_QUIT:
1301 goto quit;
1302
1303 default:
1304 req->result = -1;
1305 break;
1306 }
1307
1308 req->errorno = errno;
1309
1310 X_LOCK (reslock);
1311
1312 ++npending;
1313
1314 if (!reqq_push (&res_queue, req))
1315 {
1316 /* write a dummy byte to the pipe so fh becomes ready */
1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1318
1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
1328 }
1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
1334
1335 return 0;
1336 }//D
1337}
1338
1339/*****************************************************************************/
1340
1341static void atfork_prepare (void)
1342{
1343 X_LOCK (wrklock);
1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
1346#if !HAVE_PREADWRITE
1347 X_LOCK (preadwritelock);
1348#endif
1349#if !HAVE_READDIR_R
1350 X_LOCK (readdirlock);
1351#endif
1352}
1353
1354static void atfork_parent (void)
1355{
1356#if !HAVE_READDIR_R
1357 X_UNLOCK (readdirlock);
1358#endif
1359#if !HAVE_PREADWRITE
1360 X_UNLOCK (preadwritelock);
1361#endif
1362 X_UNLOCK (reslock);
1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
1365}
1366
1367static void atfork_child (void)
1368{
1369 aio_req prv;
1370
1371 while (prv = reqq_shift (&req_queue))
1372 req_destroy (prv);
1373
1374 while (prv = reqq_shift (&res_queue))
1375 req_destroy (prv);
1376
1377 while (wrk_first.next != &wrk_first)
1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
1394 create_respipe ();
1395
1396 atfork_parent ();
1397}
1398
1399#define dREQ \
1400 aio_req req; \
1401 int req_pri = next_pri; \
1402 next_pri = DEFAULT_PRI + PRI_BIAS; \
1403 \
1404 if (SvOK (callback) && !SvROK (callback)) \
1405 croak ("callback must be undef or of reference type"); \
1406 \
1407 Newz (0, req, 1, aio_cb); \
1408 if (!req) \
1409 croak ("out of memory during aio_req allocation"); \
1410 \
1411 req->callback = newSVsv (callback); \
1412 req->pri = req_pri
1413
1414#define REQ_SEND \
1415 req_send (req); \
1416 \
1417 if (GIMME_V != G_VOID) \
1418 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1419
1420MODULE = IO::AIO PACKAGE = IO::AIO 976MODULE = IO::AIO PACKAGE = IO::AIO
1421 977
1422PROTOTYPES: ENABLE 978PROTOTYPES: ENABLE
1423 979
1424BOOT: 980BOOT:
1425{ 981{
982 static const struct {
983 const char *name;
984 IV iv;
985 } *civ, const_iv[] = {
986# define const_niv(name, value) { # name, (IV) value },
987# define const_iv(name) { # name, (IV) name },
988# define const_eio(name) { # name, (IV) EIO_ ## name },
989
990 /* you have to re-run ./gendef0 after adding/removing any constants here */
991 /* the first block can be undef if missing */
992 const_iv (ENOSYS)
993 const_iv (EXDEV)
994 const_iv (EBADR)
995
996 /* for lseek */
997 const_iv (SEEK_DATA)
998 const_iv (SEEK_HOLE)
999
1000 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1001 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1002 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1003 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1004 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1005 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1006
1007 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1008 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1009 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1010 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1011 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1012
1013 /* the second block will be 0 when missing */
1014 const_iv (O_RDONLY)
1015 const_iv (O_WRONLY)
1016 const_iv (O_RDWR)
1017 const_iv (O_CREAT)
1018 const_iv (O_TRUNC)
1019 const_iv (O_EXCL)
1020 const_iv (O_APPEND)
1021
1022 const_iv (O_ASYNC)
1023 const_iv (O_DIRECT)
1024 const_iv (O_NOATIME)
1025
1026 const_iv (O_CLOEXEC)
1027 const_iv (O_NOCTTY)
1028 const_iv (O_NOFOLLOW)
1029 const_iv (O_NONBLOCK)
1030 const_iv (O_EXEC)
1031 const_iv (O_SEARCH)
1032 const_iv (O_DIRECTORY)
1033 const_iv (O_DSYNC)
1034 const_iv (O_RSYNC)
1035 const_iv (O_SYNC)
1036 const_iv (O_PATH)
1037 const_iv (O_TMPFILE)
1038 const_iv (O_TTY_INIT)
1039
1040 const_iv (S_IFIFO)
1041 const_iv (S_IFCHR)
1042 const_iv (S_IFBLK)
1043 const_iv (S_IFLNK)
1044 const_iv (S_IFREG)
1045 const_iv (S_IFDIR)
1046 const_iv (S_IFWHT)
1047 const_iv (S_IFSOCK)
1048 const_iv (S_IFMT)
1049
1050 const_iv (ST_RDONLY)
1051 const_iv (ST_NOSUID)
1052 const_iv (ST_NODEV)
1053 const_iv (ST_NOEXEC)
1054 const_iv (ST_SYNCHRONOUS)
1055 const_iv (ST_MANDLOCK)
1056 const_iv (ST_WRITE)
1057 const_iv (ST_APPEND)
1058 const_iv (ST_IMMUTABLE)
1059 const_iv (ST_NOATIME)
1060 const_iv (ST_NODIRATIME)
1061 const_iv (ST_RELATIME)
1062
1063 const_iv (PROT_NONE)
1064 const_iv (PROT_EXEC)
1065 const_iv (PROT_READ)
1066 const_iv (PROT_WRITE)
1067
1068 const_iv (MAP_PRIVATE)
1069 const_iv (MAP_SHARED)
1070 const_iv (MAP_FIXED)
1071 const_iv (MAP_ANONYMOUS)
1072
1073 /* linuxish */
1074 const_iv (MAP_LOCKED)
1075 const_iv (MAP_NORESERVE)
1076 const_iv (MAP_POPULATE)
1077 const_iv (MAP_NONBLOCK)
1078 const_iv (MAP_GROWSDOWN)
1079 const_iv (MAP_32BIT)
1080 const_iv (MAP_HUGETLB)
1081 const_iv (MAP_STACK)
1082
1083 const_iv (F_DUPFD_CLOEXEC)
1084
1085 const_iv (F_OFD_GETLK)
1086 const_iv (F_OFD_SETLK)
1087 const_iv (F_OFD_GETLKW)
1088
1089 const_iv (FIFREEZE)
1090 const_iv (FITHAW)
1091 const_iv (FITRIM)
1092 const_iv (FICLONE)
1093 const_iv (FICLONERANGE)
1094 const_iv (FIDEDUPERANGE)
1095
1096 const_iv (FS_IOC_GETFLAGS)
1097 const_iv (FS_IOC_SETFLAGS)
1098 const_iv (FS_IOC_GETVERSION)
1099 const_iv (FS_IOC_SETVERSION)
1100 const_iv (FS_IOC_FIEMAP)
1101 const_iv (FS_IOC_FSGETXATTR)
1102 const_iv (FS_IOC_FSSETXATTR)
1103 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1104 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1105 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1106
1107 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1108
1109 const_iv (FS_SECRM_FL)
1110 const_iv (FS_UNRM_FL)
1111 const_iv (FS_COMPR_FL)
1112 const_iv (FS_SYNC_FL)
1113 const_iv (FS_IMMUTABLE_FL)
1114 const_iv (FS_APPEND_FL)
1115 const_iv (FS_NODUMP_FL)
1116 const_iv (FS_NOATIME_FL)
1117 const_iv (FS_DIRTY_FL)
1118 const_iv (FS_COMPRBLK_FL)
1119 const_iv (FS_NOCOMP_FL)
1120 const_iv (FS_ENCRYPT_FL)
1121 const_iv (FS_BTREE_FL)
1122 const_iv (FS_INDEX_FL)
1123 const_iv (FS_JOURNAL_DATA_FL)
1124 const_iv (FS_NOTAIL_FL)
1125 const_iv (FS_DIRSYNC_FL)
1126 const_iv (FS_TOPDIR_FL)
1127 const_iv (FS_FL_USER_MODIFIABLE)
1128
1129 const_iv (FS_XFLAG_REALTIME)
1130 const_iv (FS_XFLAG_PREALLOC)
1131 const_iv (FS_XFLAG_IMMUTABLE)
1132 const_iv (FS_XFLAG_APPEND)
1133 const_iv (FS_XFLAG_SYNC)
1134 const_iv (FS_XFLAG_NOATIME)
1135 const_iv (FS_XFLAG_NODUMP)
1136 const_iv (FS_XFLAG_RTINHERIT)
1137 const_iv (FS_XFLAG_PROJINHERIT)
1138 const_iv (FS_XFLAG_NOSYMLINKS)
1139 const_iv (FS_XFLAG_EXTSIZE)
1140 const_iv (FS_XFLAG_EXTSZINHERIT)
1141 const_iv (FS_XFLAG_NODEFRAG)
1142 const_iv (FS_XFLAG_FILESTREAM)
1143 const_iv (FS_XFLAG_DAX)
1144 const_iv (FS_XFLAG_HASATTR)
1145
1146 const_iv (FIEMAP_FLAG_SYNC)
1147 const_iv (FIEMAP_FLAG_XATTR)
1148 const_iv (FIEMAP_FLAGS_COMPAT)
1149 const_iv (FIEMAP_EXTENT_LAST)
1150 const_iv (FIEMAP_EXTENT_UNKNOWN)
1151 const_iv (FIEMAP_EXTENT_DELALLOC)
1152 const_iv (FIEMAP_EXTENT_ENCODED)
1153 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1154 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1155 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1156 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1157 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1158 const_iv (FIEMAP_EXTENT_MERGED)
1159 const_iv (FIEMAP_EXTENT_SHARED)
1160
1161 const_iv (SPLICE_F_MOVE)
1162 const_iv (SPLICE_F_NONBLOCK)
1163 const_iv (SPLICE_F_MORE)
1164 const_iv (SPLICE_F_GIFT)
1165
1166 /* these are libeio constants, and are independent of gendef0 */
1167 const_eio (SEEK_SET)
1168 const_eio (SEEK_CUR)
1169 const_eio (SEEK_END)
1170
1171 const_eio (MCL_FUTURE)
1172 const_eio (MCL_CURRENT)
1173
1174 const_eio (MS_ASYNC)
1175 const_eio (MS_INVALIDATE)
1176 const_eio (MS_SYNC)
1177
1178 const_eio (MT_MODIFY)
1179
1180 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1181 const_eio (SYNC_FILE_RANGE_WRITE)
1182 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1183
1184 const_eio (FALLOC_FL_KEEP_SIZE)
1185 const_eio (FALLOC_FL_PUNCH_HOLE)
1186 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1187 const_eio (FALLOC_FL_ZERO_RANGE)
1188 const_eio (FALLOC_FL_INSERT_RANGE)
1189 const_eio (FALLOC_FL_UNSHARE_RANGE)
1190
1191 const_eio (RENAME_NOREPLACE)
1192 const_eio (RENAME_EXCHANGE)
1193 const_eio (RENAME_WHITEOUT)
1194
1195 const_eio (READDIR_DENTS)
1196 const_eio (READDIR_DIRS_FIRST)
1197 const_eio (READDIR_STAT_ORDER)
1198 const_eio (READDIR_FOUND_UNKNOWN)
1199
1200 const_eio (DT_UNKNOWN)
1201 const_eio (DT_FIFO)
1202 const_eio (DT_CHR)
1203 const_eio (DT_DIR)
1204 const_eio (DT_BLK)
1205 const_eio (DT_REG)
1206 const_eio (DT_LNK)
1207 const_eio (DT_SOCK)
1208 const_eio (DT_WHT)
1209 };
1210
1426 HV *stash = gv_stashpv ("IO::AIO", 1); 1211 aio_stash = gv_stashpv ("IO::AIO" , 1);
1212 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1213 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1214 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1427 1215
1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1216 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1217 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1440 1218
1441 X_COND_CHECK (reqwait); 1219 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446 1220
1447 create_respipe (); 1221 reinit ();
1448
1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1450} 1222}
1451 1223
1452void 1224void
1225reinit ()
1226 PROTOTYPE:
1227
1228void
1453max_poll_reqs (int nreqs) 1229max_poll_reqs (unsigned int nreqs)
1454 PROTOTYPE: $ 1230 PROTOTYPE: $
1455 CODE: 1231 CODE:
1456 max_poll_reqs = nreqs; 1232 eio_set_max_poll_reqs (nreqs);
1457 1233
1458void 1234void
1459max_poll_time (double nseconds) 1235max_poll_time (double nseconds)
1460 PROTOTYPE: $ 1236 PROTOTYPE: $
1461 CODE: 1237 CODE:
1462 max_poll_time = nseconds * AIO_TICKS; 1238 eio_set_max_poll_time (nseconds);
1463 1239
1464void 1240void
1465min_parallel (int nthreads) 1241min_parallel (unsigned int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $ 1242 PROTOTYPE: $
1475 CODE: 1243 CODE:
1476 set_max_idle (nthreads); 1244 eio_set_min_parallel (nthreads);
1477 1245
1478int 1246void
1479max_outstanding (int maxreqs) 1247max_parallel (unsigned int nthreads)
1480 PROTOTYPE: $ 1248 PROTOTYPE: $
1481 CODE: 1249 CODE:
1482 RETVAL = max_outstanding; 1250 eio_set_max_parallel (nthreads);
1251
1252void
1253max_idle (unsigned int nthreads)
1254 PROTOTYPE: $
1255 CODE:
1256 eio_set_max_idle (nthreads);
1257
1258void
1259idle_timeout (unsigned int seconds)
1260 PROTOTYPE: $
1261 CODE:
1262 eio_set_idle_timeout (seconds);
1263
1264void
1265max_outstanding (unsigned int maxreqs)
1266 PROTOTYPE: $
1267 CODE:
1483 max_outstanding = maxreqs; 1268 max_outstanding = maxreqs;
1484 OUTPUT:
1485 RETVAL
1486 1269
1487void 1270void
1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1271aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1489 PROTOTYPE: $$$;$
1490 PPCODE: 1272 PPCODE:
1491{ 1273{
1492 dREQ; 1274 dREQ;
1493 1275
1276 req->type = EIO_WD_OPEN;
1277 req_set_path1 (req, pathname);
1278
1279 REQ_SEND;
1280}
1281
1282void
1283aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1284 PPCODE:
1285{
1286 dREQ;
1287
1494 req->type = REQ_OPEN; 1288 req->type = EIO_OPEN;
1495 req->sv1 = newSVsv (pathname); 1289 req_set_path1 (req, pathname);
1496 req->ptr1 = SvPVbyte_nolen (req->sv1);
1497 req->int1 = flags; 1290 req->int1 = flags;
1498 req->mode = mode; 1291 req->int2 = mode;
1499 1292
1500 REQ_SEND; 1293 REQ_SEND;
1501} 1294}
1502 1295
1503void 1296void
1504aio_close (SV *fh, SV *callback=&PL_sv_undef) 1297aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1505 PROTOTYPE: $;$
1506 ALIAS: 1298 ALIAS:
1507 aio_close = REQ_CLOSE
1508 aio_fsync = REQ_FSYNC 1299 aio_fsync = EIO_FSYNC
1509 aio_fdatasync = REQ_FDATASYNC 1300 aio_fdatasync = EIO_FDATASYNC
1301 aio_syncfs = EIO_SYNCFS
1510 PPCODE: 1302 PPCODE:
1511{ 1303{
1304 int fd = s_fileno_croak (fh, 0);
1512 dREQ; 1305 dREQ;
1513 1306
1514 req->type = ix; 1307 req->type = ix;
1515 req->sv1 = newSVsv (fh); 1308 req->sv1 = newSVsv (fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1309 req->int1 = fd;
1517 1310
1518 REQ_SEND (req); 1311 REQ_SEND;
1519} 1312}
1520 1313
1521void 1314void
1315aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1316 PPCODE:
1317{
1318 int fd = s_fileno_croak (fh, 0);
1319 dREQ;
1320
1321 req->type = EIO_SYNC_FILE_RANGE;
1322 req->sv1 = newSVsv (fh);
1323 req->int1 = fd;
1324 req->offs = offset;
1325 req->size = nbytes;
1326 req->int2 = flags;
1327
1328 REQ_SEND;
1329}
1330
1331void
1332aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1333 PPCODE:
1334{
1335 int fd = s_fileno_croak (fh, 0);
1336 dREQ;
1337
1338 req->type = EIO_FALLOCATE;
1339 req->sv1 = newSVsv (fh);
1340 req->int1 = fd;
1341 req->int2 = mode;
1342 req->offs = offset;
1343 req->size = len;
1344
1345 REQ_SEND;
1346}
1347
1348void
1349aio_close (SV *fh, SV *callback = &PL_sv_undef)
1350 PPCODE:
1351{
1352 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1353 int fd = s_fileno_croak (fh, 0);
1354 dREQ;
1355
1356 if (expect_false (close_fd < 0))
1357 {
1358 int pipefd [2];
1359
1360 if (
1361#ifdef _WIN32
1362 _pipe (pipefd, 1, _O_BINARY) < 0
1363#else
1364 pipe (pipefd) < 0
1365 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1366#endif
1367 || close (pipefd [1]) < 0
1368 )
1369 abort (); /*D*/
1370
1371 close_fd = pipefd [0];
1372 }
1373
1374 req->type = EIO_DUP2;
1375 req->int1 = close_fd;
1376 req->sv2 = newSVsv (fh);
1377 req->int2 = fd;
1378
1379 REQ_SEND;
1380}
1381
1382void
1383aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1384 PPCODE:
1385{
1386 int fd = s_fileno_croak (fh, 0);
1387 dREQ;
1388
1389 req->type = EIO_SEEK;
1390 req->sv1 = newSVsv (fh);
1391 req->int1 = fd;
1392 req->offs = SvVAL64 (offset);
1393 req->int2 = whence;
1394
1395 REQ_SEND;
1396}
1397
1398void
1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1399aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1523 ALIAS: 1400 ALIAS:
1524 aio_read = REQ_READ 1401 aio_read = EIO_READ
1525 aio_write = REQ_WRITE 1402 aio_write = EIO_WRITE
1526 PROTOTYPE: $$$$$;$
1527 PPCODE: 1403 PPCODE:
1528{ 1404{
1529 STRLEN svlen; 1405 STRLEN svlen;
1406 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1530 char *svptr = SvPVbyte (data, svlen); 1407 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length); 1408 UV len = SvUV (length);
1532 1409
1533 SvUPGRADE (data, SVt_PV);
1534 SvPOK_on (data);
1535
1536 if (dataoffset < 0) 1410 if (dataoffset < 0)
1537 dataoffset += svlen; 1411 dataoffset += svlen;
1538 1412
1539 if (dataoffset < 0 || dataoffset > svlen) 1413 if (dataoffset < 0 || dataoffset > svlen)
1540 croak ("dataoffset outside of data scalar"); 1414 croak ("dataoffset outside of data scalar");
1541 1415
1542 if (ix == REQ_WRITE) 1416 if (ix == EIO_WRITE)
1543 { 1417 {
1544 /* write: check length and adjust. */ 1418 /* write: check length and adjust. */
1545 if (!SvOK (length) || len + dataoffset > svlen) 1419 if (!SvOK (length) || len + dataoffset > svlen)
1546 len = svlen - dataoffset; 1420 len = svlen - dataoffset;
1547 } 1421 }
1548 else 1422 else
1549 { 1423 {
1550 /* read: grow scalar as necessary */ 1424 /* read: check type and grow scalar as necessary */
1425 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1551 svptr = SvGROW (data, len + dataoffset + 1); 1426 svptr = sv_grow (data, len + dataoffset + 1);
1427 else if (SvCUR (data) < len + dataoffset)
1428 croak ("length + dataoffset outside of scalar, and cannot grow");
1552 } 1429 }
1553
1554 if (len < 0)
1555 croak ("length must not be negative");
1556 1430
1557 { 1431 {
1558 dREQ; 1432 dREQ;
1559 1433
1560 req->type = ix; 1434 req->type = ix;
1561 req->sv1 = newSVsv (fh); 1435 req->sv1 = newSVsv (fh);
1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1436 req->int1 = fd;
1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1437 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1565 req->size = len; 1438 req->size = len;
1566 req->sv2 = SvREFCNT_inc (data); 1439 req->sv2 = SvREFCNT_inc (data);
1567 req->ptr1 = (char *)svptr + dataoffset; 1440 req->ptr2 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset; 1441 req->stroffset = dataoffset;
1569 1442
1570 if (!SvREADONLY (data)) 1443 if (!SvREADONLY (data))
1571 { 1444 {
1572 SvREADONLY_on (data); 1445 SvREADONLY_on (data);
… …
1576 REQ_SEND; 1449 REQ_SEND;
1577 } 1450 }
1578} 1451}
1579 1452
1580void 1453void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1454aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1582 PROTOTYPE: $$;$ 1455 ALIAS:
1456 aio_ioctl = EIO_IOCTL
1457 aio_fcntl = EIO_FCNTL
1583 PPCODE: 1458 PPCODE:
1584{ 1459{
1585 SV *data; 1460 int fd = s_fileno_croak (fh, 0);
1586 dREQ; 1461 char *svptr;
1587 1462
1588 data = newSV (NAME_MAX); 1463 if (SvPOK (arg) || !SvNIOK (arg))
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK;
1592 req->sv1 = newSVsv (path);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596
1597 REQ_SEND;
1598}
1599
1600void
1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1602 PROTOTYPE: $$$$;$
1603 PPCODE:
1604{
1605 dREQ;
1606
1607 req->type = REQ_SENDFILE;
1608 req->sv1 = newSVsv (out_fh);
1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1610 req->sv2 = newSVsv (in_fh);
1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1612 req->offs = SvVAL64 (in_offset);
1613 req->size = length;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1620 PROTOTYPE: $$$;$
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->type = REQ_READAHEAD;
1626 req->sv1 = newSVsv (fh);
1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1628 req->offs = SvVAL64 (offset);
1629 req->size = length;
1630
1631 REQ_SEND;
1632}
1633
1634void
1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1636 ALIAS:
1637 aio_stat = REQ_STAT
1638 aio_lstat = REQ_LSTAT
1639 PPCODE:
1640{
1641 dREQ;
1642
1643 req->ptr2 = malloc (sizeof (Stat_t));
1644 if (!req->ptr2)
1645 { 1464 {
1646 req_destroy (req); 1465 STRLEN svlen;
1647 croak ("out of memory during aio_stat statdata allocation"); 1466 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1648 } 1467#ifdef IOCPARM_LEN
1468 STRLEN need = IOCPARM_LEN (request);
1469#else
1470 STRLEN need = 256;
1471#endif
1649 1472
1650 req->flags |= FLAG_PTR2_FREE; 1473 if (svlen < need)
1651 req->sv1 = newSVsv (fh_or_path); 1474 svptr = SvGROW (arg, need);
1652
1653 if (SvPOK (fh_or_path))
1654 {
1655 req->type = ix;
1656 req->ptr1 = SvPVbyte_nolen (req->sv1);
1657 } 1475 }
1658 else 1476 else
1477 svptr = (char *)SvIV (arg);
1478
1659 { 1479 {
1480 dREQ;
1481
1660 req->type = REQ_FSTAT; 1482 req->type = ix;
1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1483 req->sv1 = newSVsv (fh);
1484 req->int1 = fd;
1485 req->int2 = (long)request;
1486 req->sv2 = SvREFCNT_inc (arg);
1487 req->ptr2 = svptr;
1488
1489 REQ_SEND;
1662 } 1490 }
1491}
1492
1493void
1494aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1495 ALIAS:
1496 aio_readlink = EIO_READLINK
1497 aio_realpath = EIO_REALPATH
1498 PPCODE:
1499{
1500 dREQ;
1501
1502 req->type = ix;
1503 req_set_path1 (req, pathname);
1663 1504
1664 REQ_SEND; 1505 REQ_SEND;
1665} 1506}
1666 1507
1667void 1508void
1509aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1510 PPCODE:
1511{
1512 int ifd = s_fileno_croak (in_fh , 0);
1513 int ofd = s_fileno_croak (out_fh, 1);
1514 dREQ;
1515
1516 req->type = EIO_SENDFILE;
1517 req->sv1 = newSVsv (out_fh);
1518 req->int1 = ofd;
1519 req->sv2 = newSVsv (in_fh);
1520 req->int2 = ifd;
1521 req->offs = in_offset;
1522 req->size = length;
1523
1524 REQ_SEND;
1525}
1526
1527void
1528aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1529 PPCODE:
1530{
1531 int fd = s_fileno_croak (fh, 0);
1532 dREQ;
1533
1534 req->type = EIO_READAHEAD;
1535 req->sv1 = newSVsv (fh);
1536 req->int1 = fd;
1537 req->offs = offset;
1538 req->size = length;
1539
1540 REQ_SEND;
1541}
1542
1543void
1544aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1545 ALIAS:
1546 aio_stat = EIO_STAT
1547 aio_lstat = EIO_LSTAT
1548 aio_statvfs = EIO_STATVFS
1549 PPCODE:
1550{
1551 dREQ;
1552
1553 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1554
1555 REQ_SEND;
1556}
1557
1558UV
1559major (UV dev)
1560 ALIAS:
1561 minor = 1
1562 CODE:
1563 RETVAL = ix ? minor (dev) : major (dev);
1564 OUTPUT:
1565 RETVAL
1566
1567UV
1568makedev (UV maj, UV min)
1569 CODE:
1570 RETVAL = makedev (maj, min);
1571 OUTPUT:
1572 RETVAL
1573
1574void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1575aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1669 PPCODE: 1576 PPCODE:
1670{ 1577{
1671 dREQ; 1578 dREQ;
1672 1579
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1580 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1581 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path); 1582 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1676
1677 if (SvPOK (fh_or_path))
1678 {
1679 req->type = REQ_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 }
1682 else
1683 {
1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687 1583
1688 REQ_SEND; 1584 REQ_SEND;
1689} 1585}
1690 1586
1691void 1587void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1588aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1693 PPCODE: 1589 PPCODE:
1694{ 1590{
1695 dREQ; 1591 dREQ;
1696 1592
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1593 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699 1594 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 }
1710 1595
1711 REQ_SEND; 1596 REQ_SEND;
1712} 1597}
1713 1598
1714void 1599void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1600aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1716 PPCODE: 1601 PPCODE:
1717{ 1602{
1718 dREQ; 1603 dREQ;
1719 1604
1720 req->mode = mode; 1605 req->int2 = mode;
1721 req->sv1 = newSVsv (fh_or_path); 1606 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1722
1723 if (SvPOK (fh_or_path))
1724 {
1725 req->type = REQ_CHMOD;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 }
1728 else
1729 {
1730 req->type = REQ_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 }
1733 1607
1734 REQ_SEND; 1608 REQ_SEND;
1735} 1609}
1736 1610
1737void 1611void
1738aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1612aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1739 PPCODE: 1613 PPCODE:
1740{ 1614{
1741 dREQ; 1615 dREQ;
1742 1616
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1617 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1618 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path); 1619 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1746
1747 if (SvPOK (fh_or_path))
1748 {
1749 req->type = REQ_CHOWN;
1750 req->ptr1 = SvPVbyte_nolen (req->sv1);
1751 }
1752 else
1753 {
1754 req->type = REQ_FCHOWN;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1756 }
1757 1620
1758 REQ_SEND; 1621 REQ_SEND;
1759} 1622}
1760 1623
1761void 1624void
1625aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1626 PPCODE:
1627{
1628 dREQ;
1629
1630 req->type = EIO_READDIR;
1631 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1632
1633 if (flags & EIO_READDIR_DENTS)
1634 req->int1 |= EIO_READDIR_CUSTOM2;
1635
1636 req_set_path1 (req, pathname);
1637
1638 REQ_SEND;
1639}
1640
1641void
1642aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1643 PPCODE:
1644{
1645 dREQ;
1646
1647 req->type = EIO_MKDIR;
1648 req->int2 = mode;
1649 req_set_path1 (req, pathname);
1650
1651 REQ_SEND;
1652}
1653
1654void
1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1655aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1763 ALIAS: 1656 ALIAS:
1764 aio_unlink = REQ_UNLINK 1657 aio_unlink = EIO_UNLINK
1765 aio_rmdir = REQ_RMDIR 1658 aio_rmdir = EIO_RMDIR
1766 aio_readdir = REQ_READDIR 1659 aio_readdir = EIO_READDIR
1767 PPCODE: 1660 PPCODE:
1768{ 1661{
1769 dREQ; 1662 dREQ;
1770 1663
1771 req->type = ix; 1664 req->type = ix;
1772 req->sv1 = newSVsv (pathname); 1665 req_set_path1 (req, pathname);
1773 req->ptr1 = SvPVbyte_nolen (req->sv1);
1774 1666
1775 REQ_SEND; 1667 REQ_SEND;
1776} 1668}
1777 1669
1778void 1670void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1671aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1672 ALIAS:
1673 aio_link = EIO_LINK
1674 aio_symlink = EIO_SYMLINK
1675 aio_rename = EIO_RENAME
1780 PPCODE: 1676 PPCODE:
1781{ 1677{
1782 dREQ; 1678 eio_wd wd2 = 0;
1783
1784 req->type = REQ_MKDIR;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode;
1788
1789 REQ_SEND;
1790}
1791
1792void
1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1794 ALIAS:
1795 aio_link = REQ_LINK
1796 aio_symlink = REQ_SYMLINK
1797 aio_rename = REQ_RENAME
1798 PPCODE:
1799{
1800 dREQ; 1679 dREQ;
1801 1680
1802 req->type = ix; 1681 req->type = ix;
1803 req->sv2 = newSVsv (oldpath); 1682 req_set_path1 (req, oldpath);
1804 req->ptr2 = SvPVbyte_nolen (req->sv2); 1683 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1805 req->sv1 = newSVsv (newpath); 1684 req->int3 = (long)wd2;
1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1807 1685
1808 REQ_SEND; 1686 REQ_SEND;
1809} 1687}
1810 1688
1811void 1689void
1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1690aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1813 PPCODE: 1691 PPCODE:
1814{ 1692{
1693 eio_wd wd2 = 0;
1815 dREQ; 1694 dREQ;
1816 1695
1817 req->type = REQ_MKNOD; 1696 req->type = EIO_RENAME;
1818 req->sv1 = newSVsv (pathname); 1697 req_set_path1 (req, oldpath);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1); 1698 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1820 req->mode = (mode_t)mode; 1699 req->int2 = flags;
1821 req->offs = dev; 1700 req->int3 = (long)wd2;
1822 1701
1823 REQ_SEND; 1702 REQ_SEND;
1824} 1703}
1825 1704
1826void 1705void
1827aio_busy (double delay, SV *callback=&PL_sv_undef) 1706aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1828 PPCODE: 1707 PPCODE:
1829{ 1708{
1830 dREQ; 1709 dREQ;
1710
1711 req->type = EIO_MKNOD;
1712 req->int2 = (mode_t)mode;
1713 req->offs = dev;
1714 req_set_path1 (req, pathname);
1715
1716 REQ_SEND;
1717}
1831 1718
1719void
1720aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1721 ALIAS:
1722 aio_mtouch = EIO_MTOUCH
1723 aio_msync = EIO_MSYNC
1724 PPCODE:
1725{
1726 STRLEN svlen;
1727 char *svptr = SvPVbyte (data, svlen);
1728 UV len = SvUV (length);
1729
1730 if (flags < 0)
1731 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1732
1733 if (offset < 0)
1734 offset += svlen;
1735
1736 if (offset < 0 || offset > svlen)
1737 croak ("offset outside of scalar");
1738
1739 if (!SvOK (length) || len + offset > svlen)
1740 len = svlen - offset;
1741
1742 {
1743 dREQ;
1744
1745 req->type = ix;
1746 req->sv2 = SvREFCNT_inc (data);
1747 req->ptr2 = (char *)svptr + offset;
1748 req->size = len;
1749 req->int1 = flags;
1750
1751 REQ_SEND;
1752 }
1753}
1754
1755void
1756aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1757 PPCODE:
1758{
1759 STRLEN svlen;
1760 char *svptr = SvPVbyte (data, svlen);
1761 UV len = SvUV (length);
1762
1763 if (offset < 0)
1764 offset += svlen;
1765
1766 if (offset < 0 || offset > svlen)
1767 croak ("offset outside of scalar");
1768
1769 if (!SvOK (length) || len + offset > svlen)
1770 len = svlen - offset;
1771
1772 {
1773 dREQ;
1774
1775 req->type = EIO_MLOCK;
1776 req->sv2 = SvREFCNT_inc (data);
1777 req->ptr2 = (char *)svptr + offset;
1778 req->size = len;
1779
1780 REQ_SEND;
1781 }
1782}
1783
1784void
1785aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1786 PPCODE:
1787{
1788 dREQ;
1789
1790 req->type = EIO_MLOCKALL;
1791 req->int1 = flags;
1792
1793 REQ_SEND;
1794}
1795
1796void
1797aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1798 PPCODE:
1799{
1800 int fd = s_fileno_croak (fh, 0);
1801 dREQ;
1802
1803 req->type = EIO_CUSTOM;
1804 req->sv1 = newSVsv (fh);
1805 req->int1 = fd;
1806
1807 req->feed = fiemap;
1808#if HAVE_FIEMAP
1809 /* keep our fingers crossed that the next two types are 64 bit */
1810 req->offs = start;
1811 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1812 req->int2 = flags;
1813 req->int3 = SvOK (count) ? SvIV (count) : -1;
1814#endif
1815
1816 REQ_SEND;
1817}
1818
1819void
1820aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1821 PPCODE:
1822{
1823 char *svptr = 0;
1824
1825 sv_clear_foreign (data);
1826
1827 if (length) /* known length, directly read into scalar */
1828 {
1829 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1830 svptr = sv_grow (data, length + 1);
1831 else if (SvCUR (data) < length)
1832 croak ("length outside of scalar, and cannot grow");
1833 else
1834 svptr = SvPVbyte_nolen (data);
1835 }
1836
1837 {
1838 dREQ;
1839
1840 req->type = EIO_SLURP;
1841 req_set_path1 (req, pathname);
1842 req->offs = offset;
1843 req->size = length;
1844 req->sv2 = SvREFCNT_inc (data);
1845 req->ptr2 = svptr;
1846
1847 if (!SvREADONLY (data))
1848 {
1849 SvREADONLY_on (data);
1850 req->flags |= FLAG_SV2_RO_OFF;
1851 }
1852
1853 REQ_SEND;
1854 }
1855}
1856
1857void
1858aio_busy (double delay, SV *callback = &PL_sv_undef)
1859 PPCODE:
1860{
1861 dREQ;
1862
1832 req->type = REQ_BUSY; 1863 req->type = EIO_BUSY;
1833 req->nv1 = delay < 0. ? 0. : delay; 1864 req->nv1 = delay < 0. ? 0. : delay;
1834 1865
1835 REQ_SEND; 1866 REQ_SEND;
1836} 1867}
1837 1868
1838void 1869void
1839aio_group (SV *callback=&PL_sv_undef) 1870aio_group (SV *callback = &PL_sv_undef)
1840 PROTOTYPE: ;$
1841 PPCODE: 1871 PPCODE:
1842{ 1872{
1843 dREQ; 1873 dREQ;
1844 1874
1845 req->type = REQ_GROUP; 1875 req->type = EIO_GROUP;
1846 1876
1877 PUTBACK;
1847 req_send (req); 1878 req_submit (req);
1879 SPAGAIN;
1880
1848 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1881 XPUSHs (req_sv (req, aio_grp_stash));
1849} 1882}
1850 1883
1851void 1884void
1852aio_nop (SV *callback=&PL_sv_undef) 1885aio_nop (SV *callback = &PL_sv_undef)
1886 ALIAS:
1887 aio_nop = EIO_NOP
1888 aio_sync = EIO_SYNC
1853 PPCODE: 1889 PPCODE:
1854{ 1890{
1855 dREQ; 1891 dREQ;
1856 1892
1857 req->type = REQ_NOP; 1893 req->type = ix;
1858 1894
1859 REQ_SEND; 1895 REQ_SEND;
1860} 1896}
1861 1897
1862int 1898int
1863aioreq_pri (int pri = 0) 1899aioreq_pri (int pri = NO_INIT)
1864 PROTOTYPE: ;$
1865 CODE: 1900 CODE:
1866 RETVAL = next_pri - PRI_BIAS; 1901 RETVAL = next_pri;
1867 if (items > 0) 1902 if (items > 0)
1868 { 1903 {
1869 if (pri < PRI_MIN) pri = PRI_MIN; 1904 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1870 if (pri > PRI_MAX) pri = PRI_MAX; 1905 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1871 next_pri = pri + PRI_BIAS; 1906 next_pri = pri;
1872 } 1907 }
1873 OUTPUT: 1908 OUTPUT:
1874 RETVAL 1909 RETVAL
1875 1910
1876void 1911void
1877aioreq_nice (int nice = 0) 1912aioreq_nice (int nice = 0)
1878 CODE: 1913 CODE:
1879 nice = next_pri - nice; 1914 nice = next_pri - nice;
1880 if (nice < PRI_MIN) nice = PRI_MIN; 1915 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1881 if (nice > PRI_MAX) nice = PRI_MAX; 1916 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1882 next_pri = nice + PRI_BIAS; 1917 next_pri = nice;
1883 1918
1884void 1919void
1885flush () 1920flush ()
1886 PROTOTYPE:
1887 CODE: 1921 CODE:
1888 while (nreqs) 1922 while (eio_nreqs ())
1889 { 1923 {
1890 poll_wait (); 1924 poll_wait ();
1891 poll_cb (); 1925 poll_cb ();
1892 } 1926 }
1893 1927
1894int 1928int
1895poll() 1929poll ()
1896 PROTOTYPE:
1897 CODE: 1930 CODE:
1898 poll_wait (); 1931 poll_wait ();
1899 RETVAL = poll_cb (); 1932 RETVAL = poll_cb ();
1900 OUTPUT: 1933 OUTPUT:
1901 RETVAL 1934 RETVAL
1902 1935
1903int 1936int
1904poll_fileno() 1937poll_fileno ()
1905 PROTOTYPE:
1906 CODE: 1938 CODE:
1907 RETVAL = respipe [0]; 1939 RETVAL = s_epipe_fd (&respipe);
1908 OUTPUT: 1940 OUTPUT:
1909 RETVAL 1941 RETVAL
1910 1942
1911int 1943int
1912poll_cb(...) 1944poll_cb (...)
1913 PROTOTYPE: 1945 PROTOTYPE:
1914 CODE: 1946 CODE:
1915 RETVAL = poll_cb (); 1947 RETVAL = poll_cb ();
1916 OUTPUT: 1948 OUTPUT:
1917 RETVAL 1949 RETVAL
1918 1950
1919void 1951void
1920poll_wait() 1952poll_wait ()
1921 PROTOTYPE:
1922 CODE: 1953 CODE:
1923 poll_wait (); 1954 poll_wait ();
1924 1955
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1961
1962int 1956int
1963nreqs() 1957nreqs ()
1964 PROTOTYPE:
1965 CODE: 1958 CODE:
1966 RETVAL = nreqs; 1959 RETVAL = eio_nreqs ();
1967 OUTPUT: 1960 OUTPUT:
1968 RETVAL 1961 RETVAL
1969 1962
1970int 1963int
1971nready() 1964nready ()
1972 PROTOTYPE:
1973 CODE: 1965 CODE:
1974 RETVAL = get_nready (); 1966 RETVAL = eio_nready ();
1975 OUTPUT: 1967 OUTPUT:
1976 RETVAL 1968 RETVAL
1977 1969
1978int 1970int
1979npending() 1971npending ()
1980 PROTOTYPE:
1981 CODE: 1972 CODE:
1982 RETVAL = get_npending (); 1973 RETVAL = eio_npending ();
1983 OUTPUT: 1974 OUTPUT:
1984 RETVAL 1975 RETVAL
1985 1976
1986int 1977int
1987nthreads() 1978nthreads ()
1988 PROTOTYPE:
1989 CODE: 1979 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1980 RETVAL = eio_nthreads ();
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT: 1981 OUTPUT:
1994 RETVAL 1982 RETVAL
1995 1983
1984int
1985fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1986 CODE:
1987 RETVAL = posix_fadvise (fh, offset, length, advice);
1988 OUTPUT:
1989 RETVAL
1990
1991IV
1992sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1993 CODE:
1994 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1995 OUTPUT:
1996 RETVAL
1997
1998void
1999mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2000 PPCODE:
2001 sv_clear_foreign (scalar);
2002{
2003 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2004 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2005 if (addr == (void *)-1)
2006 XSRETURN_NO;
2007
2008 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2009
2010 if (!(prot & PROT_WRITE))
2011 SvREADONLY_on (scalar);
2012
2013 XSRETURN_YES;
2014}
2015
2016void
2017munmap (SV *scalar)
2018 CODE:
2019 sv_clear_foreign (scalar);
2020
2021int
2022madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2023 ALIAS:
2024 mprotect = 1
2025 CODE:
2026{
2027 STRLEN svlen;
2028 void *addr = SvPVbyte (scalar, svlen);
2029 STRLEN len = SvUV (length);
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 addr = (void *)(((intptr_t)addr) + offset);
2041 eio_page_align (&addr, &len);
2042
2043 switch (ix)
2044 {
2045 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2046 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2047 }
2048}
2049 OUTPUT:
2050 RETVAL
2051
2052int
2053munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2054 CODE:
2055{
2056 STRLEN svlen;
2057 void *addr = SvPVbyte (scalar, svlen);
2058 size_t len = SvUV (length);
2059
2060 if (offset < 0)
2061 offset += svlen;
2062
2063 if (offset < 0 || offset > svlen)
2064 croak ("offset outside of scalar");
2065
2066 if (!SvOK (length) || len + offset > svlen)
2067 len = svlen - offset;
2068
2069 addr = (void *)(((intptr_t)addr) + offset);
2070 eio_page_align (&addr, &len);
2071#if _POSIX_MEMLOCK_RANGE
2072 RETVAL = munlock (addr, len);
2073#else
2074 RETVAL = EIO_ENOSYS ();
2075#endif
2076}
2077 OUTPUT:
2078 RETVAL
2079
2080int
2081munlockall ()
2082 CODE:
2083#if _POSIX_MEMLOCK
2084 munlockall ();
2085#else
2086 RETVAL = EIO_ENOSYS ();
2087#endif
2088 OUTPUT:
2089 RETVAL
2090
2091int
2092splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2093 CODE:
2094{
2095#if HAVE_LINUX_SPLICE
2096 loff_t off_in_, off_out_;
2097 RETVAL = splice (
2098 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2099 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2100 length, flags
2101 );
2102#else
2103 RETVAL = EIO_ENOSYS ();
2104#endif
2105}
2106 OUTPUT:
2107 RETVAL
2108
2109int
2110tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2111 CODE:
2112#if HAVE_LINUX_SPLICE
2113 RETVAL = tee (rfh, wfh, length, flags);
2114#else
2115 RETVAL = EIO_ENOSYS ();
2116#endif
2117 OUTPUT:
2118 RETVAL
2119
2120int
2121pipesize (aio_rfd rfh, int new_size = -1)
2122 PROTOTYPE: $;$
2123 CODE:
2124#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2125 if (new_size >= 0)
2126 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2127 else
2128 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2129#else
2130 errno = ENOSYS;
2131 RETVAL = -1;
2132#endif
2133 OUTPUT:
2134 RETVAL
2135
2136void
2137pipe2 (int flags = 0)
2138 PROTOTYPE: ;$
2139 PPCODE:
2140{
2141 int fd[2];
2142 int res;
2143
2144 if (flags)
2145#if HAVE_PIPE2
2146 res = pipe2 (fd, flags);
2147#else
2148 res = (errno = ENOSYS, -1);
2149#endif
2150 else
2151 res = pipe (fd);
2152
2153 if (!res)
2154 {
2155 EXTEND (SP, 2);
2156 PUSHs (newmortalFH (fd[0], O_RDONLY));
2157 PUSHs (newmortalFH (fd[1], O_WRONLY));
2158 }
2159}
2160
2161UV
2162get_fdlimit ()
2163 CODE:
2164#if HAVE_RLIMITS
2165 struct rlimit rl;
2166 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2167 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2168#endif
2169 XSRETURN_UNDEF;
2170 OUTPUT:
2171 RETVAL
2172
2173void
2174min_fdlimit (UV limit = 0x7fffffffU)
2175 CODE:
2176{
2177#if HAVE_RLIMITS
2178 struct rlimit rl;
2179 rlim_t orig_rlim_max;
2180 UV bit;
2181
2182 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2183 goto fail;
2184
2185 if (rl.rlim_cur == RLIM_INFINITY)
2186 XSRETURN_YES;
2187
2188 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2189
2190 if (rl.rlim_cur < limit)
2191 {
2192 rl.rlim_cur = limit;
2193
2194 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2195 rl.rlim_max = rl.rlim_cur;
2196 }
2197
2198 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2199 XSRETURN_YES;
2200
2201 if (errno == EPERM)
2202 {
2203 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2204 /* our limit overflows a system-wide limit */
2205 /* try an adaptive algorithm, but do not lower the hardlimit */
2206 rl.rlim_max = 0;
2207 for (bit = 0x40000000U; bit; bit >>= 1)
2208 {
2209 rl.rlim_max |= bit;
2210 rl.rlim_cur = rl.rlim_max;
2211
2212 /* nevr decrease the hard limit */
2213 if (rl.rlim_max < orig_rlim_max)
2214 break;
2215
2216 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2217 rl.rlim_max &= ~bit; /* too high, remove bit again */
2218 }
2219
2220 /* now, raise the soft limit to the max permitted */
2221 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2222 {
2223 rl.rlim_cur = rl.rlim_max;
2224 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2225 errno = EPERM;
2226 }
2227 }
2228#endif
2229 fail:
2230 XSRETURN_UNDEF;
2231}
2232
2233void _on_next_submit (SV *cb)
2234 CODE:
2235 SvREFCNT_dec (on_next_submit);
2236 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2237
1996PROTOTYPES: DISABLE 2238PROTOTYPES: DISABLE
2239
2240MODULE = IO::AIO PACKAGE = IO::AIO::WD
2241
2242BOOT:
2243{
2244 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2245 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2246}
2247
2248void
2249DESTROY (SV *self)
2250 CODE:
2251{
2252 aio_wd wd = SvAIO_WD (self);
2253#if HAVE_AT
2254 {
2255 SV *callback = &PL_sv_undef;
2256 dREQ; /* clobbers next_pri :/ */
2257 next_pri = req->pri; /* restore next_pri */
2258 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2259 req->type = EIO_WD_CLOSE;
2260 req->wd = wd;
2261 REQ_SEND;
2262 }
2263#else
2264 eio_wd_close_sync (wd);
2265#endif
2266}
1997 2267
1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2268MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1999 2269
2000void 2270void
2001cancel (aio_req_ornot req) 2271cancel (aio_req_ornot req)
2002 CODE: 2272 CODE:
2003 req_cancel (req); 2273 eio_cancel (req);
2004 2274
2005void 2275void
2006cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2276cb (aio_req_ornot req, SV *callback = NO_INIT)
2007 CODE: 2277 PPCODE:
2278{
2279 if (GIMME_V != G_VOID)
2280 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2281
2282 if (items > 1)
2283 {
2284 SV *cb_cv = get_cb (callback);
2285
2008 SvREFCNT_dec (req->callback); 2286 SvREFCNT_dec (req->callback);
2009 req->callback = newSVsv (callback); 2287 req->callback = SvREFCNT_inc (cb_cv);
2288 }
2289}
2010 2290
2011MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2291MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2012 2292
2013void 2293void
2014add (aio_req grp, ...) 2294add (aio_req grp, ...)
2015 PPCODE: 2295 PPCODE:
2016{ 2296{
2017 int i; 2297 int i;
2018 aio_req req;
2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022 2298
2023 if (grp->int1 == 2) 2299 if (grp->int1 == 2)
2024 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2300 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2025 2301
2026 for (i = 1; i < items; ++i ) 2302 for (i = 1; i < items; ++i )
2027 { 2303 {
2304 aio_req req;
2305
2028 if (GIMME_V != G_VOID) 2306 if (GIMME_V != G_VOID)
2029 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2307 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2030 2308
2031 req = SvAIO_REQ (ST (i)); 2309 req = SvAIO_REQ (ST (i));
2032 2310
2033 if (req) 2311 if (req)
2034 { 2312 eio_grp_add (grp, req);
2035 ++grp->size;
2036 req->grp = grp;
2037
2038 req->grp_prev = 0;
2039 req->grp_next = grp->grp_first;
2040
2041 if (grp->grp_first)
2042 grp->grp_first->grp_prev = req;
2043
2044 grp->grp_first = req;
2045 }
2046 } 2313 }
2047} 2314}
2048 2315
2049void 2316void
2050cancel_subs (aio_req_ornot req) 2317cancel_subs (aio_req_ornot req)
… …
2059 AV *av; 2326 AV *av;
2060 2327
2061 grp->errorno = errno; 2328 grp->errorno = errno;
2062 2329
2063 av = newAV (); 2330 av = newAV ();
2331 av_extend (av, items - 1);
2064 2332
2065 for (i = 1; i < items; ++i ) 2333 for (i = 1; i < items; ++i )
2066 av_push (av, newSVsv (ST (i))); 2334 av_push (av, newSVsv (ST (i)));
2067 2335
2068 SvREFCNT_dec (grp->sv1); 2336 SvREFCNT_dec (grp->sv1);
… …
2075 grp->errorno = errorno; 2343 grp->errorno = errorno;
2076 2344
2077void 2345void
2078limit (aio_req grp, int limit) 2346limit (aio_req grp, int limit)
2079 CODE: 2347 CODE:
2080 grp->int2 = limit; 2348 eio_grp_limit (grp, limit);
2081 aio_grp_feed (grp);
2082 2349
2083void 2350void
2084feed (aio_req grp, SV *callback=&PL_sv_undef) 2351feed (aio_req grp, SV *callback = &PL_sv_undef)
2085 CODE: 2352 CODE:
2086{ 2353{
2087 SvREFCNT_dec (grp->sv2); 2354 SvREFCNT_dec (grp->sv2);
2088 grp->sv2 = newSVsv (callback); 2355 grp->sv2 = newSVsv (callback);
2356 grp->feed = aio_grp_feed;
2089 2357
2090 if (grp->int2 <= 0) 2358 if (grp->int2 <= 0)
2091 grp->int2 = 2; 2359 grp->int2 = 2;
2092 2360
2093 aio_grp_feed (grp); 2361 eio_grp_limit (grp, grp->int2);
2094} 2362}
2095 2363

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