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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.105 by root, Sun Jul 8 11:12:15 2007 UTC vs.
Revision 1.256 by root, Tue Feb 20 06:54:46 2018 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
… …
13#include <sys/stat.h> 13#include <sys/stat.h>
14#include <limits.h> 14#include <limits.h>
15#include <fcntl.h> 15#include <fcntl.h>
16#include <sched.h> 16#include <sched.h>
17 17
18#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
19# include <sys/mman.h>
20#endif
21
22/* the incompetent fool that created musl keeps __linux__, refuses
23 * to implement any linux standard apis, and also has no way to test
24 * for his broken iplementation. don't complain to me if this fails
25 * for you.
26 */
27#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
28# include <linux/fs.h>
29# ifdef FS_IOC_FIEMAP
30# include <linux/types.h>
31# include <linux/fiemap.h>
32# define HAVE_FIEMAP 1
33# endif
34#endif
35
36/* perl namespace pollution */
37#undef VERSION
38
39/* perl stupidly overrides readdir and maybe others */
40/* with thread-unsafe versions, imagine that :( */
41#undef readdir
42#undef opendir
43#undef closedir
44
18#ifdef _WIN32 45#ifdef _WIN32
19 46
20# define SIGIO 0 47 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 48
22#undef malloc 49 #undef malloc
23#undef free 50 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 51 #undef open
27# undef read 52 #undef read
28# undef write 53 #undef write
29# undef send 54 #undef send
30# undef recv 55 #undef recv
31# undef stat 56 #undef stat
57 #undef lstat
32# undef fstat 58 #undef fstat
33# define lstat stat
34# undef truncate 59 #undef truncate
35# undef ftruncate 60 #undef ftruncate
36# undef open 61 #undef open
62 #undef link
37# undef close 63 #undef close
38# undef unlink 64 #undef unlink
65 #undef mkdir
39# undef rmdir 66 #undef rmdir
40# undef rename 67 #undef rename
41# undef lseek 68 #undef lseek
69 #undef opendir
70 #undef readdir
71 #undef closedir
72 #undef chmod
73 #undef fchmod
74 #undef dup
75 #undef dup2
76 #undef abort
77 #undef pipe
42 78
43# define chown(a,b,c) (errno = ENOSYS, -1) 79 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 80 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 81
57#else 82#else
58 83
59# include "autoconf/config.h"
60# include <sys/time.h> 84 #include <sys/time.h>
61# include <sys/select.h> 85 #include <sys/select.h>
62# include <unistd.h> 86 #include <unistd.h>
63# include <utime.h> 87 #include <utime.h>
64# include <signal.h> 88 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 89
67#endif 90 #define EIO_STRUCT_STAT Stat_t
68 91
69#if HAVE_SENDFILE 92#endif
70# if __linux 93
94/*****************************************************************************/
95
96#if __GNUC__ >= 3
97# define expect(expr,value) __builtin_expect ((expr),(value))
98#else
99# define expect(expr,value) (expr)
100#endif
101
102#define expect_false(expr) expect ((expr) != 0, 0)
103#define expect_true(expr) expect ((expr) != 0, 1)
104
105/*****************************************************************************/
106
107#include "libeio/config.h"
108
109#include "schmorp.h"
110
111#if HAVE_EVENTFD
71# include <sys/sendfile.h> 112# include <sys/eventfd.h>
72# elif __freebsd 113#endif
73# include <sys/socket.h> 114
115#if HAVE_TIMERFD
74# include <sys/uio.h> 116# include <sys/timerfd.h>
75# elif __hpux 117#endif
118
119#if HAVE_RLIMITS
120 #include <sys/time.h>
76# include <sys/socket.h> 121 #include <sys/resource.h>
77# elif __solaris /* not yet */ 122#endif
78# include <sys/sendfile.h> 123
124typedef SV SV8; /* byte-sv, used for argument-checking */
125typedef int aio_rfd; /* read file desriptor */
126typedef int aio_wfd; /* write file descriptor */
127
128static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
129
130#define EIO_REQ_MEMBERS \
131 SV *callback; \
132 SV *sv1, *sv2; \
133 SV *sv3, *sv4; \
134 STRLEN stroffset; \
135 SV *self;
136
137#define EIO_NO_WRAPPERS 1
138
139#include "libeio/eio.h"
140
141static int req_invoke (eio_req *req);
142#define EIO_FINISH(req) req_invoke (req)
143static void req_destroy (eio_req *grp);
144#define EIO_DESTROY(req) req_destroy (req)
145
146#include "libeio/eio.c"
147
148#if !HAVE_POSIX_FADVISE
149# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#if !HAVE_POSIX_MADVISE
153# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#ifndef MAP_ANONYMOUS
157# ifdef MAP_ANON
158# define MAP_ANONYMOUS MAP_ANON
79# else 159# else
80# error sendfile support requested but not available 160# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 161# endif
82#endif 162#endif
83 163
84/* number of seconds after which idle threads exit */ 164/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 165/* also provides const_iv_ and const_niv_ macros for them */
166#include "def0.h"
86 167
87/* used for struct dirent, AIX doesn't provide it */ 168#ifndef makedev
88#ifndef NAME_MAX 169# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 170#endif
91 171#ifndef major
92/* buffer size for various temporary buffers */ 172# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 173#endif
174#ifndef minor
175# define minor(dev) ((dev) & 0xff)
176#endif
101 177
102#define dBUF \ 178#if PAGESIZE <= 0
103 char *aio_buf; \ 179# define PAGESIZE sysconf (_SC_PAGESIZE)
104 X_LOCK (wrklock); \ 180#endif
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 181
106 X_UNLOCK (wrklock); \ 182/*****************************************************************************/
107 if (!aio_buf) \ 183
184#if !_POSIX_MAPPED_FILES
185# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
186# define munmap(addr,length) EIO_ENOSYS ()
187#endif
188
189#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS ()
191#endif
192
193#define FOREIGN_MAGIC PERL_MAGIC_ext
194
195static int ecb_cold
196mmap_free (pTHX_ SV *sv, MAGIC *mg)
197{
198 int old_errno = errno;
199 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
200 errno = old_errno;
201
202 mg->mg_obj = 0; /* just in case */
203
204 SvREADONLY_off (sv);
205
206 if (SvPVX (sv) != mg->mg_ptr)
207 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
208
209 SvCUR_set (sv, 0);
210 SvPVX (sv) = 0;
211 SvOK_off (sv);
212
108 return -1; 213 return 0;
214}
109 215
110typedef SV SV8; /* byte-sv, used for argument-checking */ 216static MGVTBL mmap_vtbl = {
111 217 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}; 218};
129 219
130#define AIO_REQ_KLASS "IO::AIO::REQ" 220static int ecb_cold
131#define AIO_GRP_KLASS "IO::AIO::GRP" 221sysfree_free (pTHX_ SV *sv, MAGIC *mg)
132
133typedef struct aio_cb
134{ 222{
135 struct aio_cb *volatile next; 223 free (mg->mg_ptr);
224 mg->mg_obj = 0; /* just in case */
136 225
137 SV *callback; 226 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;
144 227
145 STRLEN stroffset; 228 if (SvPVX (sv) != mg->mg_ptr)
146 int type; 229 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 230
151 unsigned char flags; 231 SvCUR_set (sv, 0);
152 unsigned char pri; 232 SvPVX (sv) = 0;
233 SvOK_off (sv);
153 234
154 SV *self; /* the perl counterpart of this request, if any */ 235 return 0;
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 236}
156} aio_cb;
157 237
158enum { 238static MGVTBL sysfree_vtbl = {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */ 239 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}; 240};
163 241
164typedef aio_cb *aio_req; 242/*****************************************************************************/
165typedef aio_cb *aio_req_ornot;
166 243
167enum { 244/* helper: set scalar to foreign ptr with custom free */
168 PRI_MIN = -4, 245static void
169 PRI_MAX = 4, 246sv_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{ 247{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 248 sv_force_normal (sv);
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187 249
188static thread_t main_tid; 250 /* we store the length in mg_obj, as namlen is I32 :/ */
189static int main_sig; 251 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
190static int block_sig_level; 252 ->mg_obj = (SV *)length;
191 253
192void block_sig () 254 SvUPGRADE (sv, SVt_PV); /* nop... */
193{
194 sigset_t ss;
195 255
196 if (block_sig_level++) 256 if (SvLEN (sv))
257 Safefree (SvPVX (sv));
258
259 SvPVX (sv) = (char *)addr;
260 SvCUR_set (sv, length);
261 SvLEN_set (sv, 0);
262 SvPOK_only (sv);
263}
264
265static void
266sv_clear_foreign (SV *sv)
267{
268 /* todo: iterate over magic and only free ours, but of course */
269 /* the perl5porters will call that (correct) behaviour buggy */
270 sv_unmagic (sv, FOREIGN_MAGIC);
271}
272
273/*****************************************************************************/
274
275static void
276fiemap (eio_req *req)
277{
278 req->result = -1;
279
280#if HAVE_FIEMAP
281 /* assume some c99 */
282 struct fiemap *fiemap = 0;
283 size_t end_offset;
284 int count = req->int3;
285
286 req->flags |= EIO_FLAG_PTR1_FREE;
287
288 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
289 /* increase in 3.5kb steps */
290 if (count < 0)
291 count = 8;
292
293 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
294 errno = ENOMEM;
295 if (!fiemap)
197 return; 296 return;
198 297
199 if (!main_sig) 298 req->ptr1 = fiemap;
299
300 fiemap->fm_start = req->offs;
301 fiemap->fm_length = req->size;
302 fiemap->fm_flags = req->int2;
303 fiemap->fm_extent_count = count;
304
305 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return; 306 return;
201 307
202 sigemptyset (&ss); 308 if (req->int3 >= 0 /* not autosizing */
203 sigaddset (&ss, main_sig); 309 || !fiemap->fm_mapped_extents /* no more extents */
204 pthread_sigmask (SIG_BLOCK, &ss, 0); 310 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205} 311 goto done;
206 312
207void unblock_sig () 313 /* else we have to loop -
208{ 314 * it would be tempting (actually I tried that first) to just query the
209 sigset_t ss; 315 * number of extents needed, but linux often feels like not returning all
316 * extents, without telling us it left any out. this complicates
317 * this quite a bit.
318 */
210 319
211 if (--block_sig_level) 320 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
212 return;
213 321
214 if (!main_sig) 322 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 { 323 {
247 closedir (wrk->dirp); 324 /* 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; 325 char scratch[3072];
249 } 326 struct fiemap *incmap = (struct fiemap *)scratch;
250 327
251 if (wrk->dbuf) 328 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
252 { 329 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
253 free (wrk->dbuf); 330 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
254 wrk->dbuf = 0; 331 incmap->fm_flags = fiemap->fm_flags;
255 } 332 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
256}
257 333
258static void worker_free (worker *wrk) 334 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe [2], respipe_osf [2];
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0; 335 return;
353 336
354 --q->size; 337 if (!incmap->fm_mapped_extents)
338 goto done;
355 339
356 for (pri = NUM_PRI; pri--; ) 340 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
357 { 341 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
358 aio_req req = q->qs[pri]; 342 errno = ENOMEM;
359
360 if (req) 343 if (!fiemap)
344 return;
345
346 req->ptr1 = fiemap;
347
348 for (count = 0; count < incmap->fm_mapped_extents; ++count)
361 { 349 {
362 if (!(q->qs[pri] = req->next)) 350 struct fiemap_extent *e = incmap->fm_extents + count;
363 q->qe[pri] = 0;
364 351
365 return req; 352 if (e->fe_logical + e->fe_length >= end_offset)
353 goto done;
354
355 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
356
357 if (e->fe_flags & FIEMAP_EXTENT_LAST)
358 goto done;
359
366 } 360 }
367 } 361 }
368 362
369 abort (); 363done:
370} 364 req->result = 0;
371 365
372static int poll_cb (); 366#else
373static int req_invoke (aio_req req); 367 errno = ENOSYS;
368#endif
369}
370
371/*****************************************************************************/
372
373enum {
374 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
375};
376
377typedef eio_req *aio_req;
378typedef eio_req *aio_req_ornot;
379typedef eio_wd aio_wd;
380
381static SV *on_next_submit;
382static int next_pri = EIO_PRI_DEFAULT;
383static int max_outstanding;
384
385static s_epipe respipe;
386
374static void req_destroy (aio_req req); 387static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 388static void req_cancel (aio_req req);
376 389
390static void
391want_poll (void)
392{
393 /* write a dummy byte to the pipe so fh becomes ready */
394 s_epipe_signal (&respipe);
395}
396
397static void
398done_poll (void)
399{
400 /* read any signals sent by the worker threads */
401 s_epipe_drain (&respipe);
402}
403
377/* must be called at most once */ 404/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 405static SV *
406req_sv (aio_req req, HV *stash)
379{ 407{
380 if (!req->self) 408 if (!req->self)
381 { 409 {
382 req->self = (SV *)newHV (); 410 req->self = (SV *)newHV ();
383 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 411 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
384 } 412 }
385 413
386 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 414 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
387} 415}
388 416
389static aio_req SvAIO_REQ (SV *sv) 417static SV *
418newSVaio_wd (aio_wd wd)
419{
420 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
421}
422
423static aio_req
424SvAIO_REQ (SV *sv)
390{ 425{
391 MAGIC *mg; 426 MAGIC *mg;
392 427
393 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 428 if (!SvROK (sv)
429 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
430 || (SvSTASH (SvRV (sv)) != aio_grp_stash
431 && SvSTASH (SvRV (sv)) != aio_req_stash
432 && !sv_derived_from (sv, "IO::AIO::REQ")))
394 croak ("object of class " AIO_REQ_KLASS " expected"); 433 croak ("object of class IO::AIO::REQ expected");
395 434
396 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 435 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
397 436
398 return mg ? (aio_req)mg->mg_ptr : 0; 437 return mg ? (aio_req)mg->mg_ptr : 0;
399} 438}
400 439
440static aio_wd
441SvAIO_WD (SV *sv)
442{
443 if (!SvROK (sv)
444 || SvTYPE (SvRV (sv)) != SVt_PVMG
445 || SvSTASH (SvRV (sv)) != aio_wd_stash)
446 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
447
448 return (aio_wd)(long)SvIVX (SvRV (sv));
449}
450
451static SV *
452newmortalFH (int fd, int flags)
453{
454 if (fd < 0)
455 return &PL_sv_undef;
456
457 GV *gv = (GV *)sv_newmortal ();
458 char sym[64];
459 int symlen;
460
461 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
462 gv_init (gv, aio_stash, sym, symlen, 0);
463
464 symlen = snprintf (
465 sym,
466 sizeof (sym),
467 "%s&=%d",
468 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
469 fd
470 );
471
472 return do_open (gv, sym, symlen, 0, 0, 0, 0)
473 ? (SV *)gv : &PL_sv_undef;
474}
475
476static void
401static void aio_grp_feed (aio_req grp) 477aio_grp_feed (aio_req grp)
402{ 478{
403 block_sig (); 479 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 480 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 481 dSP;
412 482
413 ENTER; 483 ENTER;
414 SAVETMPS; 484 SAVETMPS;
415 PUSHMARK (SP); 485 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 486 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK; 487 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 488 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 489 SPAGAIN;
420 FREETMPS; 490 FREETMPS;
421 LEAVE; 491 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 } 492 }
432
433 unblock_sig ();
434} 493}
435 494
436static void aio_grp_dec (aio_req grp) 495static void
496req_submit (eio_req *req)
437{ 497{
438 --grp->size; 498 eio_submit (req);
439 499
440 /* call feeder, if applicable */ 500 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 501 {
446 block_sig (); 502 dSP;
503 SV *cb = sv_2mortal (on_next_submit);
447 504
448 if (!req_invoke (grp)) 505 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 506
455 req_destroy (grp); 507 PUSHMARK (SP);
456 unblock_sig (); 508 PUTBACK;
509 call_sv (cb, G_DISCARD | G_EVAL);
457 } 510 }
458} 511}
459 512
513static int
460static int req_invoke (aio_req req) 514req_invoke (eio_req *req)
461{ 515{
462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF) 516 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 517 SvREADONLY_off (req->sv2);
466 518
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 519 if (!EIO_CANCELLED (req) && req->callback)
468 { 520 {
521 dSP;
522 static SV *sv_result_cache; /* caches the result integer SV */
523 SV *sv_result;
524
469 ENTER; 525 ENTER;
470 SAVETMPS; 526 SAVETMPS;
471 PUSHMARK (SP); 527 PUSHMARK (SP);
472 EXTEND (SP, 1); 528 EXTEND (SP, 1);
473 529
530 /* do not recreate the result IV from scratch each time */
531 if (expect_true (sv_result_cache))
532 {
533 sv_result = sv_result_cache; sv_result_cache = 0;
534 SvIV_set (sv_result, req->result);
535 SvIOK_only (sv_result);
536 }
537 else
538 {
539 sv_result = newSViv (req->result);
540 SvREADONLY_on (sv_result);
541 }
542
474 switch (req->type) 543 switch (req->type)
475 { 544 {
545 case EIO_WD_OPEN:
546 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
547 break;
548
476 case REQ_READDIR: 549 case EIO_READDIR:
477 { 550 {
478 SV *rv = &PL_sv_undef; 551 SV *rv = &PL_sv_undef;
479 552
480 if (req->result >= 0) 553 if (req->result >= 0)
481 { 554 {
482 int i; 555 int i;
483 char *buf = req->ptr2; 556 char *names = (char *)req->ptr2;
557 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
484 AV *av = newAV (); 558 AV *av = newAV ();
485 559
486 av_extend (av, req->result - 1); 560 av_extend (av, req->result - 1);
487 561
488 for (i = 0; i < req->result; ++i) 562 for (i = 0; i < req->result; ++i)
489 { 563 {
490 SV *sv = newSVpv (buf, 0); 564 if (req->int1 & EIO_READDIR_DENTS)
565 {
566 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
491 567
568 if (req->int1 & EIO_READDIR_CUSTOM2)
569 {
570 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
571 AV *avent = newAV ();
572
573 av_extend (avent, 2);
574
575 if (!sv_type [ent->type])
576 {
577 sv_type [ent->type] = newSViv (ent->type);
578 SvREADONLY_on (sv_type [ent->type]);
579 }
580
581 av_store (avent, 0, namesv);
582 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
583 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
584
585 av_store (av, i, newRV_noinc ((SV *)avent));
586 }
587 else
492 av_store (av, i, sv); 588 av_store (av, i, namesv);
589
590 ++ent;
591 }
592 else
593 {
594 SV *name = newSVpv (names, 0);
595 av_store (av, i, name);
493 buf += SvCUR (sv) + 1; 596 names += SvCUR (name) + 1;
597 }
494 } 598 }
495 599
496 rv = sv_2mortal (newRV_noinc ((SV *)av)); 600 rv = sv_2mortal (newRV_noinc ((SV *)av));
497 } 601 }
498 602
499 PUSHs (rv); 603 PUSHs (rv);
604
605 if (req->int1 & EIO_READDIR_CUSTOM1)
606 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 } 607 }
501 break; 608 break;
502 609
503 case REQ_OPEN: 610 case EIO_OPEN:
611 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
612 break;
613
614 case EIO_STATVFS:
615 case EIO_FSTATVFS:
504 { 616 {
505 /* convert fd to fh */ 617 SV *rv = &PL_sv_undef;
506 SV *fh; 618
619#ifndef _WIN32
620 if (req->result >= 0)
621 {
622 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
623 HV *hv = newHV ();
624 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
625 * chooses to make it a struct.
626 */
627 unsigned long fsid = 0;
628 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
507 629
508 PUSHs (sv_2mortal (newSViv (req->result))); 630 rv = sv_2mortal (newRV_noinc ((SV *)hv));
509 PUTBACK;
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
511 SPAGAIN;
512 631
513 fh = POPs; 632 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
514 PUSHMARK (SP); 633 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
634 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
635 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
636 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
637 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
638 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
639 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
640 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
641 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
642 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
643 }
644#endif
645
515 XPUSHs (fh); 646 PUSHs (rv);
516 } 647 }
648
517 break; 649 break;
518 650
519 case REQ_GROUP: 651 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 652 req->int1 = 2; /* mark group as finished */
521 653
522 if (req->sv1) 654 if (req->sv1)
523 { 655 {
524 int i; 656 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 660 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 661 PUSHs (*av_fetch (av, i, 0));
530 } 662 }
531 break; 663 break;
532 664
533 case REQ_NOP: 665 case EIO_NOP:
534 case REQ_BUSY: 666 case EIO_BUSY:
535 break; 667 break;
536 668
537 case REQ_READLINK: 669 case EIO_READLINK:
670 case EIO_REALPATH:
538 if (req->result > 0) 671 if (req->result > 0)
672 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
673 break;
674
675 case EIO_STAT:
676 case EIO_LSTAT:
677 case EIO_FSTAT:
678 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
679
680 if (!(PL_laststatval = req->result))
681 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
682 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
683
684 PUSHs (sv_result);
685 break;
686
687 case EIO_SEEK:
688 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
689 break;
690
691 case EIO_READ:
692 {
693 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
694 *SvEND (req->sv2) = 0;
695 SvPOK_only (req->sv2);
696 SvSETMAGIC (req->sv2);
697 PUSHs (sv_result);
698 }
699 break;
700
701 case EIO_SLURP:
702 {
703 if (req->result >= 0)
704 {
705 /* if length was originally not known, we steal the malloc'ed memory */
706 if (req->flags & EIO_FLAG_PTR2_FREE)
707 {
708 req->flags &= ~EIO_FLAG_PTR2_FREE;
709 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
710 }
711 else
712 {
713 SvCUR_set (req->sv2, req->result);
714 *SvEND (req->sv2) = 0;
715 SvPOK_only (req->sv2);
716 }
717
718 SvSETMAGIC (req->sv2);
719 }
720
721 PUSHs (sv_result);
722 }
723 break;
724
725 case EIO_CUSTOM:
726 if (req->feed == fiemap)
539 { 727 {
540 SvCUR_set (req->sv2, req->result); 728#if HAVE_FIEMAP
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2); 729 if (!req->result)
730 {
731 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
732
733 if (fiemap->fm_extent_count)
734 {
735 AV *av = newAV ();
736 int i;
737
738 while (fiemap->fm_mapped_extents)
739 {
740 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
741 AV *ext_av = newAV ();
742
743 av_store (ext_av, 3, newSVuv (extent->fe_flags));
744 av_store (ext_av, 2, newSVval64 (extent->fe_length));
745 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
746 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
747
748 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
749 }
750
751 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
752 }
753 else
754 {
755 SvIV_set (sv_result, fiemap->fm_mapped_extents);
756 PUSHs (sv_result);
757 }
758 }
759#endif
543 } 760 }
761 else
762 PUSHs (sv_result);
544 break; 763 break;
545 764
546 case REQ_STAT: 765 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
547 case REQ_LSTAT: 766 if (req->result > 0)
548 case REQ_FSTAT: 767 SvIV_set (sv_result, 0);
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 768 /* 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;
560 769
561 default: 770 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 771 PUSHs (sv_result);
563 break; 772 break;
564 } 773 }
565 774
566 errno = req->errorno; 775 errno = req->errorno;
567 776
568 PUTBACK; 777 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 778 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 779 SPAGAIN;
780
781 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
782 SvREFCNT_dec (sv_result);
783 else
784 sv_result_cache = sv_result;
571 785
572 FREETMPS; 786 FREETMPS;
573 LEAVE; 787 LEAVE;
788
789 PUTBACK;
574 } 790 }
575 791
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); 792 return !!SvTRUE (ERRSV);
591} 793}
592 794
795static void
593static void req_destroy (aio_req req) 796req_destroy (aio_req req)
594{ 797{
595 if (req->self) 798 if (req->self)
596 { 799 {
597 sv_unmagic (req->self, PERL_MAGIC_ext); 800 sv_unmagic (req->self, PERL_MAGIC_ext);
598 SvREFCNT_dec (req->self); 801 SvREFCNT_dec (req->self);
599 } 802 }
600 803
601 SvREFCNT_dec (req->sv1); 804 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 805 SvREFCNT_dec (req->sv2);
806 SvREFCNT_dec (req->sv3);
807 SvREFCNT_dec (req->sv4);
603 SvREFCNT_dec (req->callback); 808 SvREFCNT_dec (req->callback);
604 809
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 810 free (req);
609} 811}
610 812
813static void
611static void req_cancel_subs (aio_req grp) 814req_cancel_subs (aio_req grp)
612{ 815{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP) 816 if (grp->type != EIO_GROUP)
616 return; 817 return;
617 818
618 SvREFCNT_dec (grp->sv2); 819 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 820 grp->sv2 = 0;
620 821
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 822 eio_grp_cancel (grp);
622 req_cancel (sub);
623} 823}
624 824
625static void req_cancel (aio_req req) 825static void ecb_cold
826create_respipe (void)
626{ 827{
627 req->flags |= FLAG_CANCELLED; 828 if (s_epipe_renew (&respipe))
628 829 croak ("IO::AIO: unable to initialize result pipe");
629 req_cancel_subs (req);
630} 830}
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
637 831
638static void 832static void
639create_pipe (int fd[2]) 833poll_wait (void)
640{ 834{
641#ifdef _WIN32
642 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg))
646#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK))
650#endif
651 croak ("unable to initialize result pipe");
652
653 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]);
655}
656
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait ()
753{
754 fd_set rfd;
755
756 while (nreqs) 835 while (eio_nreqs ())
757 { 836 {
758 int size; 837 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 838
839 X_LOCK (EIO_POOL->reslock);
760 size = res_queue.size; 840 size = EIO_POOL->res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 841 X_UNLOCK (EIO_POOL->reslock);
762 842
763 if (size) 843 if (size)
764 return; 844 return;
765 845
766 maybe_start_thread (); 846 etp_maybe_start_thread (EIO_POOL);
767 847
768 FD_ZERO (&rfd); 848 s_epipe_wait (&respipe);
769 FD_SET (respipe [0], &rfd);
770
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 849 }
773} 850}
774 851
775static int poll_cb () 852static int
853poll_cb (void)
776{ 854{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 855 for (;;)
790 { 856 {
791 for (;;) 857 int res = eio_poll ();
858
859 if (res > 0)
860 croak (0);
861
862 if (!max_outstanding || max_outstanding > eio_nreqs ())
863 return res;
864
865 poll_wait ();
866 }
867}
868
869static void ecb_cold
870reinit (void)
871{
872 create_respipe ();
873
874 if (eio_init (want_poll, done_poll) < 0)
875 croak ("IO::AIO: unable to initialise eio library");
876}
877
878/*****************************************************************************/
879
880static SV *
881get_cb (SV *cb_sv)
882{
883 SvGETMAGIC (cb_sv);
884 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
885}
886
887static aio_req ecb_noinline
888dreq (SV *callback)
889{
890 SV *cb_cv;
891 aio_req req;
892 int req_pri = next_pri;
893 next_pri = EIO_PRI_DEFAULT;
894
895 cb_cv = get_cb (callback);
896
897 req = calloc (sizeof (*req), 1);
898 if (!req)
899 croak ("out of memory during eio_req allocation");
900
901 req->callback = SvREFCNT_inc (cb_cv);
902 req->pri = req_pri;
903
904 return req;
905}
906
907#define dREQ \
908 aio_req req = dreq (callback); \
909
910#define REQ_SEND \
911 PUTBACK; \
912 req_submit (req); \
913 SPAGAIN; \
914 \
915 if (GIMME_V != G_VOID) \
916 XPUSHs (req_sv (req, aio_req_stash));
917
918ecb_inline void
919req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
920{
921 if (expect_false (SvROK (path)))
922 {
923 SV *rv = SvRV (path);
924 SV *wdob;
925
926 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 { 927 {
793 maybe_start_thread (); 928 path = AvARRAY (rv)[1];
929 wdob = AvARRAY (rv)[0];
794 930
795 X_LOCK (reslock); 931 if (SvOK (wdob))
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 { 932 {
800 --npending; 933 *wd = SvAIO_WD (wdob);
801 934 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (respipe_read (respipe [0], buf, 4) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 } 935 }
823 else 936 else
824 { 937 *wd = EIO_INVALID_WD;
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0);
830 }
831
832 count++;
833 }
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 } 938 }
939 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
940 {
941 *wd = (aio_wd)(long)SvIVX (rv);
942 *wdsv = SvREFCNT_inc_NN (rv);
943 *ptr = ".";
944 return; /* path set to "." */
945 }
946 else
947 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
948 }
848 949
849 if (nreqs <= max_outstanding) 950 *pathsv = newSVsv (path);
951 *ptr = SvPVbyte_nolen (*pathsv);
952}
953
954static void ecb_noinline
955req_set_path1 (aio_req req, SV *path)
956{
957 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
958}
959
960static void ecb_noinline
961req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
962{
963 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
964
965 switch (SvTYPE (rv))
966 {
967 case SVt_PVIO:
968 case SVt_PVLV:
969 case SVt_PVGV:
970 req->type = type_fh;
971 req->sv1 = newSVsv (fh_or_path);
972 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850 break; 973 break;
851 974
852 poll_wait (); 975 default:
853 976 req->type = type_path;
854 ++maxreqs; 977 req_set_path1 (req, fh_or_path);
978 break;
855 } 979 }
856
857 unblock_sig ();
858 return count;
859} 980}
860 981
861/*****************************************************************************/ 982/*****************************************************************************/
862/* work around various missing functions */
863 983
864#if !HAVE_PREADWRITE 984static void
865# define pread aio_pread 985ts_set (struct timespec *ts, NV value)
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{ 986{
877 ssize_t res; 987 ts->tv_sec = value;
878 off_t ooffset; 988 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888} 989}
889 990
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 991static NV
992ts_get (const struct timespec *ts)
891{ 993{
892 ssize_t res; 994 return ts->tv_sec + ts->tv_nsec * 1e-9;
893 off_t ooffset;
894
895 X_LOCK (preadwritelock);
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0;
998
999#if HAVE_SENDFILE
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002
1003# elif __freebsd
1004 /*
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011
1012 if (res < 0 && sbytes)
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082}
1083
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143} 995}
1144 996
1145/*****************************************************************************/ 997/*****************************************************************************/
1146 998
1147X_THREAD_PROC (aio_proc) 999XS(boot_IO__AIO) ecb_cold;
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153 1000
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 respipe_close (respipe [0]);
1376 respipe_close (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381}
1382
1383#define dREQ \
1384 aio_req req; \
1385 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \
1387 \
1388 if (SvOK (callback) && !SvROK (callback)) \
1389 croak ("callback must be undef or of reference type"); \
1390 \
1391 Newz (0, req, 1, aio_cb); \
1392 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \
1394 \
1395 req->callback = newSVsv (callback); \
1396 req->pri = req_pri
1397
1398#define REQ_SEND \
1399 req_send (req); \
1400 \
1401 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403
1404MODULE = IO::AIO PACKAGE = IO::AIO 1001MODULE = IO::AIO PACKAGE = IO::AIO
1405 1002
1406PROTOTYPES: ENABLE 1003PROTOTYPES: ENABLE
1407 1004
1408BOOT: 1005BOOT:
1409{ 1006{
1007 static const struct {
1008 const char *name;
1009 IV iv;
1010 } *civ, const_iv[] = {
1011# define const_niv(name, value) { # name, (IV) value },
1012# define const_iv(name) { # name, (IV) name },
1013# define const_eio(name) { # name, (IV) EIO_ ## name },
1014
1015 /* you have to re-run ./gendef0 after adding/removing any constants here */
1016 /* the first block can be undef if missing */
1017 const_iv (ENOSYS)
1018 const_iv (EXDEV)
1019 const_iv (EBADR)
1020
1021 /* for lseek */
1022 const_iv (SEEK_DATA)
1023 const_iv (SEEK_HOLE)
1024
1025 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1026 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1027 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1028 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1029 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1030 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1031
1032 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1033 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1034 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1035 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1036 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1037
1038 /* the second block will be 0 when missing */
1039 const_iv (O_RDONLY)
1040 const_iv (O_WRONLY)
1041 const_iv (O_RDWR)
1042 const_iv (O_CREAT)
1043 const_iv (O_TRUNC)
1044 const_iv (O_EXCL)
1045 const_iv (O_APPEND)
1046
1047 const_iv (O_ASYNC)
1048 const_iv (O_DIRECT)
1049 const_iv (O_NOATIME)
1050
1051 const_iv (O_CLOEXEC)
1052 const_iv (O_NOCTTY)
1053 const_iv (O_NOFOLLOW)
1054 const_iv (O_NONBLOCK)
1055 const_iv (O_EXEC)
1056 const_iv (O_SEARCH)
1057 const_iv (O_DIRECTORY)
1058 const_iv (O_DSYNC)
1059 const_iv (O_RSYNC)
1060 const_iv (O_SYNC)
1061 const_iv (O_PATH)
1062 const_iv (O_TMPFILE)
1063 const_iv (O_TTY_INIT)
1064
1065 const_iv (S_IFIFO)
1066 const_iv (S_IFCHR)
1067 const_iv (S_IFBLK)
1068 const_iv (S_IFLNK)
1069 const_iv (S_IFREG)
1070 const_iv (S_IFDIR)
1071 const_iv (S_IFWHT)
1072 const_iv (S_IFSOCK)
1073 const_iv (S_IFMT)
1074
1075 const_iv (ST_RDONLY)
1076 const_iv (ST_NOSUID)
1077 const_iv (ST_NODEV)
1078 const_iv (ST_NOEXEC)
1079 const_iv (ST_SYNCHRONOUS)
1080 const_iv (ST_MANDLOCK)
1081 const_iv (ST_WRITE)
1082 const_iv (ST_APPEND)
1083 const_iv (ST_IMMUTABLE)
1084 const_iv (ST_NOATIME)
1085 const_iv (ST_NODIRATIME)
1086 const_iv (ST_RELATIME)
1087
1088 const_iv (PROT_NONE)
1089 const_iv (PROT_EXEC)
1090 const_iv (PROT_READ)
1091 const_iv (PROT_WRITE)
1092
1093 const_iv (MAP_PRIVATE)
1094 const_iv (MAP_SHARED)
1095 const_iv (MAP_FIXED)
1096 const_iv (MAP_ANONYMOUS)
1097
1098 /* linuxish */
1099 const_iv (MAP_LOCKED)
1100 const_iv (MAP_NORESERVE)
1101 const_iv (MAP_POPULATE)
1102 const_iv (MAP_NONBLOCK)
1103 const_iv (MAP_GROWSDOWN)
1104 const_iv (MAP_32BIT)
1105 const_iv (MAP_HUGETLB)
1106 const_iv (MAP_STACK)
1107
1108 const_iv (F_DUPFD_CLOEXEC)
1109
1110 const_iv (F_OFD_GETLK)
1111 const_iv (F_OFD_SETLK)
1112 const_iv (F_OFD_GETLKW)
1113
1114 const_iv (FIFREEZE)
1115 const_iv (FITHAW)
1116 const_iv (FITRIM)
1117 const_iv (FICLONE)
1118 const_iv (FICLONERANGE)
1119 const_iv (FIDEDUPERANGE)
1120
1121 const_iv (FS_IOC_GETFLAGS)
1122 const_iv (FS_IOC_SETFLAGS)
1123 const_iv (FS_IOC_GETVERSION)
1124 const_iv (FS_IOC_SETVERSION)
1125 const_iv (FS_IOC_FIEMAP)
1126 const_iv (FS_IOC_FSGETXATTR)
1127 const_iv (FS_IOC_FSSETXATTR)
1128 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1129 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1130 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1131
1132 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1133
1134 const_iv (FS_SECRM_FL)
1135 const_iv (FS_UNRM_FL)
1136 const_iv (FS_COMPR_FL)
1137 const_iv (FS_SYNC_FL)
1138 const_iv (FS_IMMUTABLE_FL)
1139 const_iv (FS_APPEND_FL)
1140 const_iv (FS_NODUMP_FL)
1141 const_iv (FS_NOATIME_FL)
1142 const_iv (FS_DIRTY_FL)
1143 const_iv (FS_COMPRBLK_FL)
1144 const_iv (FS_NOCOMP_FL)
1145 const_iv (FS_ENCRYPT_FL)
1146 const_iv (FS_BTREE_FL)
1147 const_iv (FS_INDEX_FL)
1148 const_iv (FS_JOURNAL_DATA_FL)
1149 const_iv (FS_NOTAIL_FL)
1150 const_iv (FS_DIRSYNC_FL)
1151 const_iv (FS_TOPDIR_FL)
1152 const_iv (FS_FL_USER_MODIFIABLE)
1153
1154 const_iv (FS_XFLAG_REALTIME)
1155 const_iv (FS_XFLAG_PREALLOC)
1156 const_iv (FS_XFLAG_IMMUTABLE)
1157 const_iv (FS_XFLAG_APPEND)
1158 const_iv (FS_XFLAG_SYNC)
1159 const_iv (FS_XFLAG_NOATIME)
1160 const_iv (FS_XFLAG_NODUMP)
1161 const_iv (FS_XFLAG_RTINHERIT)
1162 const_iv (FS_XFLAG_PROJINHERIT)
1163 const_iv (FS_XFLAG_NOSYMLINKS)
1164 const_iv (FS_XFLAG_EXTSIZE)
1165 const_iv (FS_XFLAG_EXTSZINHERIT)
1166 const_iv (FS_XFLAG_NODEFRAG)
1167 const_iv (FS_XFLAG_FILESTREAM)
1168 const_iv (FS_XFLAG_DAX)
1169 const_iv (FS_XFLAG_HASATTR)
1170
1171 const_iv (FIEMAP_FLAG_SYNC)
1172 const_iv (FIEMAP_FLAG_XATTR)
1173 const_iv (FIEMAP_FLAGS_COMPAT)
1174 const_iv (FIEMAP_EXTENT_LAST)
1175 const_iv (FIEMAP_EXTENT_UNKNOWN)
1176 const_iv (FIEMAP_EXTENT_DELALLOC)
1177 const_iv (FIEMAP_EXTENT_ENCODED)
1178 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1179 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1180 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1181 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1182 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1183 const_iv (FIEMAP_EXTENT_MERGED)
1184 const_iv (FIEMAP_EXTENT_SHARED)
1185
1186 const_iv (SPLICE_F_MOVE)
1187 const_iv (SPLICE_F_NONBLOCK)
1188 const_iv (SPLICE_F_MORE)
1189 const_iv (SPLICE_F_GIFT)
1190
1191 const_iv (EFD_CLOEXEC)
1192 const_iv (EFD_NONBLOCK)
1193 const_iv (EFD_SEMAPHORE)
1194
1195 const_iv (CLOCK_REALTIME)
1196 const_iv (CLOCK_MONOTONIC)
1197 const_iv (CLOCK_BOOTTIME)
1198 const_iv (CLOCK_REALTIME_ALARM)
1199 const_iv (CLOCK_BOOTTIME_ALARM)
1200
1201 const_iv (TFD_NONBLOCK)
1202 const_iv (TFD_CLOEXEC)
1203
1204 const_iv (TFD_TIMER_ABSTIME)
1205 const_iv (TFD_TIMER_CANCEL_ON_SET)
1206
1207 /* these are libeio constants, and are independent of gendef0 */
1208 const_eio (SEEK_SET)
1209 const_eio (SEEK_CUR)
1210 const_eio (SEEK_END)
1211
1212 const_eio (MCL_FUTURE)
1213 const_eio (MCL_CURRENT)
1214
1215 const_eio (MS_ASYNC)
1216 const_eio (MS_INVALIDATE)
1217 const_eio (MS_SYNC)
1218
1219 const_eio (MT_MODIFY)
1220
1221 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1222 const_eio (SYNC_FILE_RANGE_WRITE)
1223 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1224
1225 const_eio (FALLOC_FL_KEEP_SIZE)
1226 const_eio (FALLOC_FL_PUNCH_HOLE)
1227 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1228 const_eio (FALLOC_FL_ZERO_RANGE)
1229 const_eio (FALLOC_FL_INSERT_RANGE)
1230 const_eio (FALLOC_FL_UNSHARE_RANGE)
1231
1232 const_eio (RENAME_NOREPLACE)
1233 const_eio (RENAME_EXCHANGE)
1234 const_eio (RENAME_WHITEOUT)
1235
1236 const_eio (READDIR_DENTS)
1237 const_eio (READDIR_DIRS_FIRST)
1238 const_eio (READDIR_STAT_ORDER)
1239 const_eio (READDIR_FOUND_UNKNOWN)
1240
1241 const_eio (DT_UNKNOWN)
1242 const_eio (DT_FIFO)
1243 const_eio (DT_CHR)
1244 const_eio (DT_DIR)
1245 const_eio (DT_BLK)
1246 const_eio (DT_REG)
1247 const_eio (DT_LNK)
1248 const_eio (DT_SOCK)
1249 const_eio (DT_WHT)
1250 };
1251
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 1252 aio_stash = gv_stashpv ("IO::AIO" , 1);
1253 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1254 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1255 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1411 1256
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1257 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1258 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424 1259
1425 X_COND_CHECK (reqwait); 1260 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif
1430 1261
1431 create_pipe (respipe); 1262 reinit ();
1432
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1434} 1263}
1435 1264
1436void 1265void
1266reinit ()
1267 PROTOTYPE:
1268
1269void
1437max_poll_reqs (int nreqs) 1270max_poll_reqs (unsigned int nreqs)
1438 PROTOTYPE: $ 1271 PROTOTYPE: $
1439 CODE: 1272 CODE:
1440 max_poll_reqs = nreqs; 1273 eio_set_max_poll_reqs (nreqs);
1441 1274
1442void 1275void
1443max_poll_time (double nseconds) 1276max_poll_time (double nseconds)
1444 PROTOTYPE: $ 1277 PROTOTYPE: $
1445 CODE: 1278 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 1279 eio_set_max_poll_time (nseconds);
1447 1280
1448void 1281void
1449min_parallel (int nthreads) 1282min_parallel (unsigned int nthreads)
1450 PROTOTYPE: $
1451
1452void
1453max_parallel (int nthreads)
1454 PROTOTYPE: $
1455
1456void
1457max_idle (int nthreads)
1458 PROTOTYPE: $ 1283 PROTOTYPE: $
1459 CODE: 1284 CODE:
1460 set_max_idle (nthreads); 1285 eio_set_min_parallel (nthreads);
1461 1286
1462int 1287void
1463max_outstanding (int maxreqs) 1288max_parallel (unsigned int nthreads)
1464 PROTOTYPE: $ 1289 PROTOTYPE: $
1465 CODE: 1290 CODE:
1466 RETVAL = max_outstanding; 1291 eio_set_max_parallel (nthreads);
1292
1293void
1294max_idle (unsigned int nthreads)
1295 PROTOTYPE: $
1296 CODE:
1297 eio_set_max_idle (nthreads);
1298
1299void
1300idle_timeout (unsigned int seconds)
1301 PROTOTYPE: $
1302 CODE:
1303 eio_set_idle_timeout (seconds);
1304
1305void
1306max_outstanding (unsigned int maxreqs)
1307 PROTOTYPE: $
1308 CODE:
1467 max_outstanding = maxreqs; 1309 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 1310
1471void 1311void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1312aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1473 PROTOTYPE: $$$;$
1474 PPCODE: 1313 PPCODE:
1475{ 1314{
1476 dREQ; 1315 dREQ;
1477 1316
1317 req->type = EIO_WD_OPEN;
1318 req_set_path1 (req, pathname);
1319
1320 REQ_SEND;
1321}
1322
1323void
1324aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1325 PPCODE:
1326{
1327 dREQ;
1328
1478 req->type = REQ_OPEN; 1329 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 1330 req_set_path1 (req, pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 1331 req->int1 = flags;
1482 req->mode = mode; 1332 req->int2 = mode;
1483 1333
1484 REQ_SEND; 1334 REQ_SEND;
1485} 1335}
1486 1336
1487void 1337void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 1338aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1489 PROTOTYPE: $;$
1490 ALIAS: 1339 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 1340 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 1341 aio_fdatasync = EIO_FDATASYNC
1342 aio_syncfs = EIO_SYNCFS
1494 PPCODE: 1343 PPCODE:
1495{ 1344{
1345 int fd = s_fileno_croak (fh, 0);
1496 dREQ; 1346 dREQ;
1497 1347
1498 req->type = ix; 1348 req->type = ix;
1499 req->sv1 = newSVsv (fh); 1349 req->sv1 = newSVsv (fh);
1500 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1350 req->int1 = fd;
1501 1351
1502 REQ_SEND (req); 1352 REQ_SEND;
1503} 1353}
1504 1354
1505void 1355void
1356aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1357 PPCODE:
1358{
1359 int fd = s_fileno_croak (fh, 0);
1360 dREQ;
1361
1362 req->type = EIO_SYNC_FILE_RANGE;
1363 req->sv1 = newSVsv (fh);
1364 req->int1 = fd;
1365 req->offs = offset;
1366 req->size = nbytes;
1367 req->int2 = flags;
1368
1369 REQ_SEND;
1370}
1371
1372void
1373aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1374 PPCODE:
1375{
1376 int fd = s_fileno_croak (fh, 0);
1377 dREQ;
1378
1379 req->type = EIO_FALLOCATE;
1380 req->sv1 = newSVsv (fh);
1381 req->int1 = fd;
1382 req->int2 = mode;
1383 req->offs = offset;
1384 req->size = len;
1385
1386 REQ_SEND;
1387}
1388
1389void
1390aio_close (SV *fh, SV *callback = &PL_sv_undef)
1391 PPCODE:
1392{
1393 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 if (expect_false (close_fd < 0))
1398 {
1399 int pipefd [2];
1400
1401 if (
1402#ifdef _WIN32
1403 _pipe (pipefd, 1, _O_BINARY) < 0
1404#else
1405 pipe (pipefd) < 0
1406 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1407#endif
1408 || close (pipefd [1]) < 0
1409 )
1410 abort (); /*D*/
1411
1412 close_fd = pipefd [0];
1413 }
1414
1415 req->type = EIO_DUP2;
1416 req->int1 = close_fd;
1417 req->sv2 = newSVsv (fh);
1418 req->int2 = fd;
1419
1420 REQ_SEND;
1421}
1422
1423void
1424aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1425 PPCODE:
1426{
1427 int fd = s_fileno_croak (fh, 0);
1428 dREQ;
1429
1430 req->type = EIO_SEEK;
1431 req->sv1 = newSVsv (fh);
1432 req->int1 = fd;
1433 req->offs = SvVAL64 (offset);
1434 req->int2 = whence;
1435
1436 REQ_SEND;
1437}
1438
1439void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1440aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1507 ALIAS: 1441 ALIAS:
1508 aio_read = REQ_READ 1442 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 1443 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$
1511 PPCODE: 1444 PPCODE:
1512{ 1445{
1513 STRLEN svlen; 1446 STRLEN svlen;
1447 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1514 char *svptr = SvPVbyte (data, svlen); 1448 char *svptr = SvPVbyte (data, svlen);
1515 UV len = SvUV (length); 1449 UV len = SvUV (length);
1516 1450
1517 SvUPGRADE (data, SVt_PV);
1518 SvPOK_on (data);
1519
1520 if (dataoffset < 0) 1451 if (dataoffset < 0)
1521 dataoffset += svlen; 1452 dataoffset += svlen;
1522 1453
1523 if (dataoffset < 0 || dataoffset > svlen) 1454 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 1455 croak ("dataoffset outside of data scalar");
1525 1456
1526 if (ix == REQ_WRITE) 1457 if (ix == EIO_WRITE)
1527 { 1458 {
1528 /* write: check length and adjust. */ 1459 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 1460 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 1461 len = svlen - dataoffset;
1531 } 1462 }
1532 else 1463 else
1533 { 1464 {
1534 /* read: grow scalar as necessary */ 1465 /* read: check type and grow scalar as necessary */
1466 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1535 svptr = SvGROW (data, len + dataoffset + 1); 1467 svptr = sv_grow (data, len + dataoffset + 1);
1468 else if (SvCUR (data) < len + dataoffset)
1469 croak ("length + dataoffset outside of scalar, and cannot grow");
1536 } 1470 }
1537
1538 if (len < 0)
1539 croak ("length must not be negative");
1540 1471
1541 { 1472 {
1542 dREQ; 1473 dREQ;
1543 1474
1544 req->type = ix; 1475 req->type = ix;
1545 req->sv1 = newSVsv (fh); 1476 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1477 req->int1 = fd;
1547 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1478 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 1479 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 1480 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 1481 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 1482 req->stroffset = dataoffset;
1553 1483
1554 if (!SvREADONLY (data)) 1484 if (!SvREADONLY (data))
1555 { 1485 {
1556 SvREADONLY_on (data); 1486 SvREADONLY_on (data);
… …
1560 REQ_SEND; 1490 REQ_SEND;
1561 } 1491 }
1562} 1492}
1563 1493
1564void 1494void
1565aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1495aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1566 PROTOTYPE: $$;$ 1496 ALIAS:
1497 aio_ioctl = EIO_IOCTL
1498 aio_fcntl = EIO_FCNTL
1567 PPCODE: 1499 PPCODE:
1568{ 1500{
1569 SV *data; 1501 int fd = s_fileno_croak (fh, 0);
1570 dREQ; 1502 char *svptr;
1571 1503
1572 data = newSV (NAME_MAX); 1504 if (SvPOK (arg) || !SvNIOK (arg))
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK;
1576 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1586 PROTOTYPE: $$$$;$
1587 PPCODE:
1588{
1589 dREQ;
1590
1591 req->type = REQ_SENDFILE;
1592 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1594 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1596 req->offs = SvVAL64 (in_offset);
1597 req->size = length;
1598
1599 REQ_SEND;
1600}
1601
1602void
1603aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1604 PROTOTYPE: $$$;$
1605 PPCODE:
1606{
1607 dREQ;
1608
1609 req->type = REQ_READAHEAD;
1610 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1612 req->offs = SvVAL64 (offset);
1613 req->size = length;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS:
1621 aio_stat = REQ_STAT
1622 aio_lstat = REQ_LSTAT
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 { 1505 {
1630 req_destroy (req); 1506 STRLEN svlen;
1631 croak ("out of memory during aio_stat statdata allocation"); 1507 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1632 } 1508#ifdef IOCPARM_LEN
1509 STRLEN need = IOCPARM_LEN (request);
1510#else
1511 STRLEN need = 256;
1512#endif
1633 1513
1634 req->flags |= FLAG_PTR2_FREE; 1514 if (svlen < need)
1635 req->sv1 = newSVsv (fh_or_path); 1515 svptr = SvGROW (arg, need);
1636
1637 if (SvPOK (fh_or_path))
1638 {
1639 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 1516 }
1642 else 1517 else
1518 svptr = (char *)SvIV (arg);
1519
1643 { 1520 {
1521 dREQ;
1522
1644 req->type = REQ_FSTAT; 1523 req->type = ix;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1524 req->sv1 = newSVsv (fh);
1525 req->int1 = fd;
1526 req->int2 = (long)request;
1527 req->sv2 = SvREFCNT_inc (arg);
1528 req->ptr2 = svptr;
1529
1530 REQ_SEND;
1646 } 1531 }
1532}
1533
1534void
1535aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1536 ALIAS:
1537 aio_readlink = EIO_READLINK
1538 aio_realpath = EIO_REALPATH
1539 PPCODE:
1540{
1541 dREQ;
1542
1543 req->type = ix;
1544 req_set_path1 (req, pathname);
1647 1545
1648 REQ_SEND; 1546 REQ_SEND;
1649} 1547}
1650 1548
1651void 1549void
1550aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1551 PPCODE:
1552{
1553 int ifd = s_fileno_croak (in_fh , 0);
1554 int ofd = s_fileno_croak (out_fh, 1);
1555 dREQ;
1556
1557 req->type = EIO_SENDFILE;
1558 req->sv1 = newSVsv (out_fh);
1559 req->int1 = ofd;
1560 req->sv2 = newSVsv (in_fh);
1561 req->int2 = ifd;
1562 req->offs = in_offset;
1563 req->size = length;
1564
1565 REQ_SEND;
1566}
1567
1568void
1569aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1570 PPCODE:
1571{
1572 int fd = s_fileno_croak (fh, 0);
1573 dREQ;
1574
1575 req->type = EIO_READAHEAD;
1576 req->sv1 = newSVsv (fh);
1577 req->int1 = fd;
1578 req->offs = offset;
1579 req->size = length;
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1586 ALIAS:
1587 aio_stat = EIO_STAT
1588 aio_lstat = EIO_LSTAT
1589 aio_statvfs = EIO_STATVFS
1590 PPCODE:
1591{
1592 dREQ;
1593
1594 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1595
1596 REQ_SEND;
1597}
1598
1599UV
1600major (UV dev)
1601 ALIAS:
1602 minor = 1
1603 CODE:
1604 RETVAL = ix ? minor (dev) : major (dev);
1605 OUTPUT:
1606 RETVAL
1607
1608UV
1609makedev (UV maj, UV min)
1610 CODE:
1611 RETVAL = makedev (maj, min);
1612 OUTPUT:
1613 RETVAL
1614
1615void
1652aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1616aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1653 PPCODE: 1617 PPCODE:
1654{ 1618{
1655 dREQ; 1619 dREQ;
1656 1620
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1621 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1622 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 1623 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1660
1661 if (SvPOK (fh_or_path))
1662 {
1663 req->type = REQ_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 }
1666 else
1667 {
1668 req->type = REQ_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 }
1671 1624
1672 REQ_SEND; 1625 REQ_SEND;
1673} 1626}
1674 1627
1675void 1628void
1676aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1629aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1677 PPCODE: 1630 PPCODE:
1678{ 1631{
1679 dREQ; 1632 dREQ;
1680 1633
1681 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1634 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 1635 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1684 if (SvPOK (fh_or_path))
1685 {
1686 req->type = REQ_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 }
1689 else
1690 {
1691 req->type = REQ_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 }
1694 1636
1695 REQ_SEND; 1637 REQ_SEND;
1696} 1638}
1697 1639
1698void 1640void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1641aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1700 PPCODE: 1642 PPCODE:
1701{ 1643{
1702 dREQ; 1644 dREQ;
1703 1645
1704 req->mode = mode; 1646 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 1647 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1706
1707 if (SvPOK (fh_or_path))
1708 {
1709 req->type = REQ_CHMOD;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 }
1712 else
1713 {
1714 req->type = REQ_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 }
1717 1648
1718 REQ_SEND; 1649 REQ_SEND;
1719} 1650}
1720 1651
1721void 1652void
1722aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1653aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1723 PPCODE: 1654 PPCODE:
1724{ 1655{
1725 dREQ; 1656 dREQ;
1726 1657
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1658 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1659 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 1660 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1730
1731 if (SvPOK (fh_or_path))
1732 {
1733 req->type = REQ_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 }
1736 else
1737 {
1738 req->type = REQ_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 }
1741 1661
1742 REQ_SEND; 1662 REQ_SEND;
1743} 1663}
1744 1664
1745void 1665void
1666aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 dREQ;
1670
1671 req->type = EIO_READDIR;
1672 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1673
1674 if (flags & EIO_READDIR_DENTS)
1675 req->int1 |= EIO_READDIR_CUSTOM2;
1676
1677 req_set_path1 (req, pathname);
1678
1679 REQ_SEND;
1680}
1681
1682void
1683aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1684 PPCODE:
1685{
1686 dREQ;
1687
1688 req->type = EIO_MKDIR;
1689 req->int2 = mode;
1690 req_set_path1 (req, pathname);
1691
1692 REQ_SEND;
1693}
1694
1695void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1696aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1747 ALIAS: 1697 ALIAS:
1748 aio_unlink = REQ_UNLINK 1698 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 1699 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 1700 aio_readdir = EIO_READDIR
1751 PPCODE: 1701 PPCODE:
1752{ 1702{
1753 dREQ; 1703 dREQ;
1754 1704
1755 req->type = ix; 1705 req->type = ix;
1756 req->sv1 = newSVsv (pathname); 1706 req_set_path1 (req, pathname);
1757 req->ptr1 = SvPVbyte_nolen (req->sv1);
1758 1707
1759 REQ_SEND; 1708 REQ_SEND;
1760} 1709}
1761 1710
1762void 1711void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1712aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1713 ALIAS:
1714 aio_link = EIO_LINK
1715 aio_symlink = EIO_SYMLINK
1716 aio_rename = EIO_RENAME
1764 PPCODE: 1717 PPCODE:
1765{ 1718{
1766 dREQ; 1719 eio_wd wd2 = 0;
1767
1768 req->type = REQ_MKDIR;
1769 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS:
1779 aio_link = REQ_LINK
1780 aio_symlink = REQ_SYMLINK
1781 aio_rename = REQ_RENAME
1782 PPCODE:
1783{
1784 dREQ; 1720 dREQ;
1785 1721
1786 req->type = ix; 1722 req->type = ix;
1787 req->sv2 = newSVsv (oldpath); 1723 req_set_path1 (req, oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2); 1724 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1789 req->sv1 = newSVsv (newpath); 1725 req->int3 = (long)wd2;
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791 1726
1792 REQ_SEND; 1727 REQ_SEND;
1793} 1728}
1794 1729
1795void 1730void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1731aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1797 PPCODE: 1732 PPCODE:
1798{ 1733{
1734 eio_wd wd2 = 0;
1799 dREQ; 1735 dREQ;
1800 1736
1801 req->type = REQ_MKNOD; 1737 req->type = EIO_RENAME;
1802 req->sv1 = newSVsv (pathname); 1738 req_set_path1 (req, oldpath);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1); 1739 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1804 req->mode = (mode_t)mode; 1740 req->int2 = flags;
1805 req->offs = dev; 1741 req->int3 = (long)wd2;
1806 1742
1807 REQ_SEND; 1743 REQ_SEND;
1808} 1744}
1809 1745
1810void 1746void
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 1747aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1812 PPCODE: 1748 PPCODE:
1813{ 1749{
1814 dREQ; 1750 dREQ;
1751
1752 req->type = EIO_MKNOD;
1753 req->int2 = (mode_t)mode;
1754 req->offs = dev;
1755 req_set_path1 (req, pathname);
1756
1757 REQ_SEND;
1758}
1815 1759
1760void
1761aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1762 ALIAS:
1763 aio_mtouch = EIO_MTOUCH
1764 aio_msync = EIO_MSYNC
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (flags < 0)
1772 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1773
1774 if (offset < 0)
1775 offset += svlen;
1776
1777 if (offset < 0 || offset > svlen)
1778 croak ("offset outside of scalar");
1779
1780 if (!SvOK (length) || len + offset > svlen)
1781 len = svlen - offset;
1782
1783 {
1784 dREQ;
1785
1786 req->type = ix;
1787 req->sv2 = SvREFCNT_inc (data);
1788 req->ptr2 = (char *)svptr + offset;
1789 req->size = len;
1790 req->int1 = flags;
1791
1792 REQ_SEND;
1793 }
1794}
1795
1796void
1797aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1798 PPCODE:
1799{
1800 STRLEN svlen;
1801 char *svptr = SvPVbyte (data, svlen);
1802 UV len = SvUV (length);
1803
1804 if (offset < 0)
1805 offset += svlen;
1806
1807 if (offset < 0 || offset > svlen)
1808 croak ("offset outside of scalar");
1809
1810 if (!SvOK (length) || len + offset > svlen)
1811 len = svlen - offset;
1812
1813 {
1814 dREQ;
1815
1816 req->type = EIO_MLOCK;
1817 req->sv2 = SvREFCNT_inc (data);
1818 req->ptr2 = (char *)svptr + offset;
1819 req->size = len;
1820
1821 REQ_SEND;
1822 }
1823}
1824
1825void
1826aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1827 PPCODE:
1828{
1829 dREQ;
1830
1831 req->type = EIO_MLOCKALL;
1832 req->int1 = flags;
1833
1834 REQ_SEND;
1835}
1836
1837void
1838aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1839 PPCODE:
1840{
1841 int fd = s_fileno_croak (fh, 0);
1842 dREQ;
1843
1844 req->type = EIO_CUSTOM;
1845 req->sv1 = newSVsv (fh);
1846 req->int1 = fd;
1847
1848 req->feed = fiemap;
1849#if HAVE_FIEMAP
1850 /* keep our fingers crossed that the next two types are 64 bit */
1851 req->offs = start;
1852 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1853 req->int2 = flags;
1854 req->int3 = SvOK (count) ? SvIV (count) : -1;
1855#endif
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 char *svptr = 0;
1865
1866 sv_clear_foreign (data);
1867
1868 if (length) /* known length, directly read into scalar */
1869 {
1870 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1871 svptr = sv_grow (data, length + 1);
1872 else if (SvCUR (data) < length)
1873 croak ("length outside of scalar, and cannot grow");
1874 else
1875 svptr = SvPVbyte_nolen (data);
1876 }
1877
1878 {
1879 dREQ;
1880
1881 req->type = EIO_SLURP;
1882 req_set_path1 (req, pathname);
1883 req->offs = offset;
1884 req->size = length;
1885 req->sv2 = SvREFCNT_inc (data);
1886 req->ptr2 = svptr;
1887
1888 if (!SvREADONLY (data))
1889 {
1890 SvREADONLY_on (data);
1891 req->flags |= FLAG_SV2_RO_OFF;
1892 }
1893
1894 REQ_SEND;
1895 }
1896}
1897
1898void
1899aio_busy (double delay, SV *callback = &PL_sv_undef)
1900 PPCODE:
1901{
1902 dREQ;
1903
1816 req->type = REQ_BUSY; 1904 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 1905 req->nv1 = delay < 0. ? 0. : delay;
1818 1906
1819 REQ_SEND; 1907 REQ_SEND;
1820} 1908}
1821 1909
1822void 1910void
1823aio_group (SV *callback=&PL_sv_undef) 1911aio_group (SV *callback = &PL_sv_undef)
1824 PROTOTYPE: ;$
1825 PPCODE: 1912 PPCODE:
1826{ 1913{
1827 dREQ; 1914 dREQ;
1828 1915
1829 req->type = REQ_GROUP; 1916 req->type = EIO_GROUP;
1830 1917
1918 PUTBACK;
1831 req_send (req); 1919 req_submit (req);
1920 SPAGAIN;
1921
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1922 XPUSHs (req_sv (req, aio_grp_stash));
1833} 1923}
1834 1924
1835void 1925void
1836aio_nop (SV *callback=&PL_sv_undef) 1926aio_nop (SV *callback = &PL_sv_undef)
1927 ALIAS:
1928 aio_nop = EIO_NOP
1929 aio_sync = EIO_SYNC
1837 PPCODE: 1930 PPCODE:
1838{ 1931{
1839 dREQ; 1932 dREQ;
1840 1933
1841 req->type = REQ_NOP; 1934 req->type = ix;
1842 1935
1843 REQ_SEND; 1936 REQ_SEND;
1844} 1937}
1845 1938
1846int 1939int
1847aioreq_pri (int pri = 0) 1940aioreq_pri (int pri = NO_INIT)
1848 PROTOTYPE: ;$
1849 CODE: 1941 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 1942 RETVAL = next_pri;
1851 if (items > 0) 1943 if (items > 0)
1852 { 1944 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 1945 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 1946 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 1947 next_pri = pri;
1856 } 1948 }
1857 OUTPUT: 1949 OUTPUT:
1858 RETVAL 1950 RETVAL
1859 1951
1860void 1952void
1861aioreq_nice (int nice = 0) 1953aioreq_nice (int nice = 0)
1862 CODE: 1954 CODE:
1863 nice = next_pri - nice; 1955 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 1956 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 1957 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 1958 next_pri = nice;
1867 1959
1868void 1960void
1869flush () 1961flush ()
1870 PROTOTYPE:
1871 CODE: 1962 CODE:
1872 while (nreqs) 1963 while (eio_nreqs ())
1873 { 1964 {
1874 poll_wait (); 1965 poll_wait ();
1875 poll_cb (); 1966 poll_cb ();
1876 } 1967 }
1877 1968
1878int 1969int
1879poll() 1970poll ()
1880 PROTOTYPE:
1881 CODE: 1971 CODE:
1882 poll_wait (); 1972 poll_wait ();
1883 RETVAL = poll_cb (); 1973 RETVAL = poll_cb ();
1884 OUTPUT: 1974 OUTPUT:
1885 RETVAL 1975 RETVAL
1886 1976
1887int 1977int
1888poll_fileno() 1978poll_fileno ()
1889 PROTOTYPE:
1890 CODE: 1979 CODE:
1891 RETVAL = respipe [0]; 1980 RETVAL = s_epipe_fd (&respipe);
1892 OUTPUT: 1981 OUTPUT:
1893 RETVAL 1982 RETVAL
1894 1983
1895int 1984int
1896poll_cb(...) 1985poll_cb (...)
1897 PROTOTYPE: 1986 PROTOTYPE:
1898 CODE: 1987 CODE:
1899 RETVAL = poll_cb (); 1988 RETVAL = poll_cb ();
1900 OUTPUT: 1989 OUTPUT:
1901 RETVAL 1990 RETVAL
1902 1991
1903void 1992void
1904poll_wait() 1993poll_wait ()
1905 PROTOTYPE:
1906 CODE: 1994 CODE:
1907 poll_wait (); 1995 poll_wait ();
1908 1996
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1997int
1947nreqs() 1998nreqs ()
1948 PROTOTYPE:
1949 CODE: 1999 CODE:
1950 RETVAL = nreqs; 2000 RETVAL = eio_nreqs ();
1951 OUTPUT: 2001 OUTPUT:
1952 RETVAL 2002 RETVAL
1953 2003
1954int 2004int
1955nready() 2005nready ()
1956 PROTOTYPE:
1957 CODE: 2006 CODE:
1958 RETVAL = get_nready (); 2007 RETVAL = eio_nready ();
1959 OUTPUT: 2008 OUTPUT:
1960 RETVAL 2009 RETVAL
1961 2010
1962int 2011int
1963npending() 2012npending ()
1964 PROTOTYPE:
1965 CODE: 2013 CODE:
1966 RETVAL = get_npending (); 2014 RETVAL = eio_npending ();
1967 OUTPUT: 2015 OUTPUT:
1968 RETVAL 2016 RETVAL
1969 2017
1970int 2018int
1971nthreads() 2019nthreads ()
1972 PROTOTYPE:
1973 CODE: 2020 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2021 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 2022 OUTPUT:
1978 RETVAL 2023 RETVAL
1979 2024
2025int
2026fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2027 CODE:
2028 RETVAL = posix_fadvise (fh, offset, length, advice);
2029 OUTPUT:
2030 RETVAL
2031
2032IV
2033sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2034 CODE:
2035 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2036 OUTPUT:
2037 RETVAL
2038
2039void
2040mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2041 PPCODE:
2042 sv_clear_foreign (scalar);
2043{
2044 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2045 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2046 if (addr == (void *)-1)
2047 XSRETURN_NO;
2048
2049 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2050
2051 if (!(prot & PROT_WRITE))
2052 SvREADONLY_on (scalar);
2053
2054 XSRETURN_YES;
2055}
2056
2057void
2058munmap (SV *scalar)
2059 CODE:
2060 sv_clear_foreign (scalar);
2061
2062int
2063madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2064 ALIAS:
2065 mprotect = 1
2066 CODE:
2067{
2068 STRLEN svlen;
2069 void *addr = SvPVbyte (scalar, svlen);
2070 STRLEN len = SvUV (length);
2071
2072 if (offset < 0)
2073 offset += svlen;
2074
2075 if (offset < 0 || offset > svlen)
2076 croak ("offset outside of scalar");
2077
2078 if (!SvOK (length) || len + offset > svlen)
2079 len = svlen - offset;
2080
2081 addr = (void *)(((intptr_t)addr) + offset);
2082 eio_page_align (&addr, &len);
2083
2084 switch (ix)
2085 {
2086 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2087 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2088 }
2089}
2090 OUTPUT:
2091 RETVAL
2092
2093int
2094munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2095 CODE:
2096{
2097 STRLEN svlen;
2098 void *addr = SvPVbyte (scalar, svlen);
2099 size_t len = SvUV (length);
2100
2101 if (offset < 0)
2102 offset += svlen;
2103
2104 if (offset < 0 || offset > svlen)
2105 croak ("offset outside of scalar");
2106
2107 if (!SvOK (length) || len + offset > svlen)
2108 len = svlen - offset;
2109
2110 addr = (void *)(((intptr_t)addr) + offset);
2111 eio_page_align (&addr, &len);
2112#if _POSIX_MEMLOCK_RANGE
2113 RETVAL = munlock (addr, len);
2114#else
2115 RETVAL = EIO_ENOSYS ();
2116#endif
2117}
2118 OUTPUT:
2119 RETVAL
2120
2121int
2122munlockall ()
2123 CODE:
2124#if _POSIX_MEMLOCK
2125 munlockall ();
2126#else
2127 RETVAL = EIO_ENOSYS ();
2128#endif
2129 OUTPUT:
2130 RETVAL
2131
2132int
2133splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2134 CODE:
2135{
2136#if HAVE_LINUX_SPLICE
2137 loff_t off_in_, off_out_;
2138 RETVAL = splice (
2139 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2140 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2141 length, flags
2142 );
2143#else
2144 RETVAL = EIO_ENOSYS ();
2145#endif
2146}
2147 OUTPUT:
2148 RETVAL
2149
2150int
2151tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2152 CODE:
2153#if HAVE_LINUX_SPLICE
2154 RETVAL = tee (rfh, wfh, length, flags);
2155#else
2156 RETVAL = EIO_ENOSYS ();
2157#endif
2158 OUTPUT:
2159 RETVAL
2160
2161int
2162pipesize (aio_rfd rfh, int new_size = -1)
2163 PROTOTYPE: $;$
2164 CODE:
2165#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2166 if (new_size >= 0)
2167 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2168 else
2169 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2170#else
2171 errno = ENOSYS;
2172 RETVAL = -1;
2173#endif
2174 OUTPUT:
2175 RETVAL
2176
2177void
2178pipe2 (int flags = 0)
2179 PROTOTYPE: ;$
2180 PPCODE:
2181{
2182 int fd[2];
2183 int res;
2184
2185 if (flags)
2186#if HAVE_PIPE2
2187 res = pipe2 (fd, flags);
2188#else
2189 res = (errno = ENOSYS, -1);
2190#endif
2191 else
2192 res = pipe (fd);
2193
2194 if (!res)
2195 {
2196 EXTEND (SP, 2);
2197 PUSHs (newmortalFH (fd[0], O_RDONLY));
2198 PUSHs (newmortalFH (fd[1], O_WRONLY));
2199 }
2200}
2201
2202void
2203eventfd (unsigned int initval = 0, int flags = 0)
2204 PPCODE:
2205{
2206 int fd;
2207#if HAVE_EVENTFD
2208 fd = eventfd (initval, flags);
2209#else
2210 fd = (errno = ENOSYS, -1);
2211#endif
2212
2213 XPUSHs (newmortalFH (fd, O_RDWR));
2214}
2215
2216void
2217timerfd_create (int clockid, int flags = 0)
2218 PPCODE:
2219{
2220 int fd;
2221#if HAVE_TIMERFD
2222 fd = timerfd_create (clockid, flags);
2223#else
2224 fd = (errno = ENOSYS, -1);
2225#endif
2226
2227 XPUSHs (newmortalFH (fd, O_RDWR));
2228}
2229
2230void
2231timerfd_settime (SV *fh, int flags, NV interval, NV value)
2232 PPCODE:
2233{
2234 int fd = s_fileno_croak (fh, 0);
2235#if HAVE_TIMERFD
2236 int res;
2237 struct itimerspec its, ots;
2238
2239 ts_set (&its.it_interval, interval);
2240 ts_set (&its.it_value , value);
2241 res = timerfd_settime (fd, flags, &its, &ots);
2242
2243 if (!res)
2244 {
2245 EXTEND (SP, 2);
2246 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2247 PUSHs (newSVnv (ts_get (&ots.it_value)));
2248 }
2249#else
2250 errno = ENOSYS;
2251#endif
2252}
2253
2254void
2255timerfd_gettime (SV *fh)
2256 PPCODE:
2257{
2258 int fd = s_fileno_croak (fh, 0);
2259#if HAVE_TIMERFD
2260 int res;
2261 struct itimerspec ots;
2262 res = timerfd_gettime (fd, &ots);
2263
2264 if (!res)
2265 {
2266 EXTEND (SP, 2);
2267 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2268 PUSHs (newSVnv (ts_get (&ots.it_value)));
2269 }
2270#else
2271 errno = ENOSYS;
2272#endif
2273}
2274
2275UV
2276get_fdlimit ()
2277 CODE:
2278#if HAVE_RLIMITS
2279 struct rlimit rl;
2280 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2281 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2282#endif
2283 XSRETURN_UNDEF;
2284 OUTPUT:
2285 RETVAL
2286
2287void
2288min_fdlimit (UV limit = 0x7fffffffU)
2289 CODE:
2290{
2291#if HAVE_RLIMITS
2292 struct rlimit rl;
2293 rlim_t orig_rlim_max;
2294 UV bit;
2295
2296 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2297 goto fail;
2298
2299 if (rl.rlim_cur == RLIM_INFINITY)
2300 XSRETURN_YES;
2301
2302 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2303
2304 if (rl.rlim_cur < limit)
2305 {
2306 rl.rlim_cur = limit;
2307
2308 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2309 rl.rlim_max = rl.rlim_cur;
2310 }
2311
2312 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2313 XSRETURN_YES;
2314
2315 if (errno == EPERM)
2316 {
2317 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2318 /* our limit overflows a system-wide limit */
2319 /* try an adaptive algorithm, but do not lower the hardlimit */
2320 rl.rlim_max = 0;
2321 for (bit = 0x40000000U; bit; bit >>= 1)
2322 {
2323 rl.rlim_max |= bit;
2324 rl.rlim_cur = rl.rlim_max;
2325
2326 /* nevr decrease the hard limit */
2327 if (rl.rlim_max < orig_rlim_max)
2328 break;
2329
2330 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2331 rl.rlim_max &= ~bit; /* too high, remove bit again */
2332 }
2333
2334 /* now, raise the soft limit to the max permitted */
2335 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2336 {
2337 rl.rlim_cur = rl.rlim_max;
2338 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2339 errno = EPERM;
2340 }
2341 }
2342#endif
2343 fail:
2344 XSRETURN_UNDEF;
2345}
2346
2347void _on_next_submit (SV *cb)
2348 CODE:
2349 SvREFCNT_dec (on_next_submit);
2350 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2351
1980PROTOTYPES: DISABLE 2352PROTOTYPES: DISABLE
2353
2354MODULE = IO::AIO PACKAGE = IO::AIO::WD
2355
2356BOOT:
2357{
2358 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2359 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2360}
2361
2362void
2363DESTROY (SV *self)
2364 CODE:
2365{
2366 aio_wd wd = SvAIO_WD (self);
2367#if HAVE_AT
2368 {
2369 SV *callback = &PL_sv_undef;
2370 dREQ; /* clobbers next_pri :/ */
2371 next_pri = req->pri; /* restore next_pri */
2372 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2373 req->type = EIO_WD_CLOSE;
2374 req->wd = wd;
2375 REQ_SEND;
2376 }
2377#else
2378 eio_wd_close_sync (wd);
2379#endif
2380}
1981 2381
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2382MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 2383
1984void 2384void
1985cancel (aio_req_ornot req) 2385cancel (aio_req_ornot req)
1986 CODE: 2386 CODE:
1987 req_cancel (req); 2387 eio_cancel (req);
1988 2388
1989void 2389void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2390cb (aio_req_ornot req, SV *callback = NO_INIT)
1991 CODE: 2391 PPCODE:
2392{
2393 if (GIMME_V != G_VOID)
2394 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2395
2396 if (items > 1)
2397 {
2398 SV *cb_cv = get_cb (callback);
2399
1992 SvREFCNT_dec (req->callback); 2400 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 2401 req->callback = SvREFCNT_inc (cb_cv);
2402 }
2403}
1994 2404
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2405MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 2406
1997void 2407void
1998add (aio_req grp, ...) 2408add (aio_req grp, ...)
1999 PPCODE: 2409 PPCODE:
2000{ 2410{
2001 int i; 2411 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 2412
2007 if (grp->int1 == 2) 2413 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2414 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 2415
2010 for (i = 1; i < items; ++i ) 2416 for (i = 1; i < items; ++i )
2011 { 2417 {
2418 aio_req req;
2419
2012 if (GIMME_V != G_VOID) 2420 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2421 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 2422
2015 req = SvAIO_REQ (ST (i)); 2423 req = SvAIO_REQ (ST (i));
2016 2424
2017 if (req) 2425 if (req)
2018 { 2426 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 2427 }
2031} 2428}
2032 2429
2033void 2430void
2034cancel_subs (aio_req_ornot req) 2431cancel_subs (aio_req_ornot req)
… …
2043 AV *av; 2440 AV *av;
2044 2441
2045 grp->errorno = errno; 2442 grp->errorno = errno;
2046 2443
2047 av = newAV (); 2444 av = newAV ();
2445 av_extend (av, items - 1);
2048 2446
2049 for (i = 1; i < items; ++i ) 2447 for (i = 1; i < items; ++i )
2050 av_push (av, newSVsv (ST (i))); 2448 av_push (av, newSVsv (ST (i)));
2051 2449
2052 SvREFCNT_dec (grp->sv1); 2450 SvREFCNT_dec (grp->sv1);
… …
2059 grp->errorno = errorno; 2457 grp->errorno = errorno;
2060 2458
2061void 2459void
2062limit (aio_req grp, int limit) 2460limit (aio_req grp, int limit)
2063 CODE: 2461 CODE:
2064 grp->int2 = limit; 2462 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 2463
2067void 2464void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 2465feed (aio_req grp, SV *callback = &PL_sv_undef)
2069 CODE: 2466 CODE:
2070{ 2467{
2071 SvREFCNT_dec (grp->sv2); 2468 SvREFCNT_dec (grp->sv2);
2072 grp->sv2 = newSVsv (callback); 2469 grp->sv2 = newSVsv (callback);
2470 grp->feed = aio_grp_feed;
2073 2471
2074 if (grp->int2 <= 0) 2472 if (grp->int2 <= 0)
2075 grp->int2 = 2; 2473 grp->int2 = 2;
2076 2474
2077 aio_grp_feed (grp); 2475 eio_grp_limit (grp, grp->int2);
2078} 2476}
2079 2477

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