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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 2018 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#if !defined mg_findext
10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
11#endif
8 12
9#include <stddef.h> 13#include <stddef.h>
10#include <stdlib.h> 14#include <stdlib.h>
11#include <errno.h> 15#include <errno.h>
12#include <sys/types.h> 16#include <sys/types.h>
13#include <sys/stat.h> 17#include <sys/stat.h>
14#include <limits.h> 18#include <limits.h>
15#include <fcntl.h> 19#include <fcntl.h>
16#include <sched.h> 20#include <sched.h>
17 21
22#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
23# include <sys/mman.h>
24#endif
25
26/* the incompetent fool that created musl keeps __linux__, refuses
27 * to implement any linux standard apis, and also has no way to test
28 * for his broken iplementation. don't complain to me if this fails
29 * for you.
30 */
31#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
32# include <linux/fs.h>
33# ifdef FS_IOC_FIEMAP
34# include <linux/types.h>
35# include <linux/fiemap.h>
36# define HAVE_FIEMAP 1
37# endif
38#endif
39
40/* perl namespace pollution */
41#undef VERSION
42
43/* perl stupidly overrides readdir and maybe others */
44/* with thread-unsafe versions, imagine that :( */
45#undef readdir
46#undef opendir
47#undef closedir
48
18#ifdef _WIN32 49#ifdef _WIN32
19 50
20# define SIGIO 0 51 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 52
22#undef malloc 53 #undef malloc
23#undef free 54 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 55 #undef open
27# undef read 56 #undef read
28# undef write 57 #undef write
58 #undef send
59 #undef recv
29# undef stat 60 #undef stat
61 #undef lstat
30# undef fstat 62 #undef fstat
31# define lstat stat
32# undef truncate 63 #undef truncate
33# undef ftruncate 64 #undef ftruncate
34# undef open 65 #undef open
66 #undef link
35# undef close 67 #undef close
36# undef unlink 68 #undef unlink
69 #undef mkdir
37# undef rmdir 70 #undef rmdir
38# undef rename 71 #undef rename
39# undef lseek 72 #undef lseek
73 #undef opendir
74 #undef readdir
75 #undef closedir
76 #undef chmod
77 #undef fchmod
78 #undef dup
79 #undef dup2
80 #undef abort
81 #undef pipe
40 82
41# define chown(a,b,c) (errno = ENOSYS, -1) 83 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 84 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 85
55#else 86#else
56 87
57# include "autoconf/config.h"
58# include <sys/time.h> 88 #include <sys/time.h>
59# include <sys/select.h> 89 #include <sys/select.h>
60# include <unistd.h> 90 #include <unistd.h>
61# include <utime.h> 91 #include <utime.h>
62# include <signal.h> 92 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 93
65#endif 94 #define EIO_STRUCT_STAT Stat_t
66 95
67#if HAVE_SENDFILE 96#endif
68# if __linux 97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "libeio/config.h"
112
113#include "schmorp.h"
114
115#if HAVE_EVENTFD
69# include <sys/sendfile.h> 116# include <sys/eventfd.h>
70# elif __freebsd 117#endif
71# include <sys/socket.h> 118
119#if HAVE_TIMERFD
72# include <sys/uio.h> 120# include <sys/timerfd.h>
73# elif __hpux 121#endif
122
123#if HAVE_RLIMITS
124 #include <sys/time.h>
74# include <sys/socket.h> 125 #include <sys/resource.h>
75# elif __solaris /* not yet */ 126#endif
76# include <sys/sendfile.h> 127
128typedef SV SV8; /* byte-sv, used for argument-checking */
129typedef int aio_rfd; /* read file desriptor */
130typedef int aio_wfd; /* write file descriptor */
131
132static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
133
134#define EIO_REQ_MEMBERS \
135 SV *callback; \
136 SV *sv1, *sv2; \
137 SV *sv3, *sv4; \
138 STRLEN stroffset; \
139 SV *self;
140
141#define EIO_NO_WRAPPERS 1
142
143#include "libeio/eio.h"
144
145static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp);
148#define EIO_DESTROY(req) req_destroy (req)
149
150#include "libeio/eio.c"
151
152#if !HAVE_POSIX_FADVISE
153# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#if !HAVE_POSIX_MADVISE
157# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
158#endif
159
160#ifndef MAP_ANONYMOUS
161# ifdef MAP_ANON
162# define MAP_ANONYMOUS MAP_ANON
77# else 163# else
78# error sendfile support requested but not available 164# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 165# endif
80#endif 166#endif
81 167
82/* number of seconds after which idle threads exit */ 168/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 169/* also provides const_iv_ and const_niv_ macros for them */
170#include "def0.h"
84 171
85/* used for struct dirent, AIX doesn't provide it */ 172#ifndef makedev
86#ifndef NAME_MAX 173# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#endif 174#endif
89 175#ifndef major
90/* buffer size for various temporary buffers */ 176# define major(dev) ((dev) >> 8)
91#define AIO_BUFSIZE 65536
92
93/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8
95# define SvVAL64 SvIV
96#else
97# define SvVAL64 SvNV
98#endif 177#endif
178#ifndef minor
179# define minor(dev) ((dev) & 0xff)
180#endif
99 181
100#define dBUF \ 182#if PAGESIZE <= 0
101 char *aio_buf; \ 183# define PAGESIZE sysconf (_SC_PAGESIZE)
102 X_LOCK (wrklock); \ 184#endif
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 185
104 X_UNLOCK (wrklock); \ 186/*****************************************************************************/
105 if (!aio_buf) \ 187
188#if !_POSIX_MAPPED_FILES
189# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
190# define munmap(addr,length) EIO_ENOSYS ()
191#endif
192
193#if !_POSIX_MEMORY_PROTECTION
194# define mprotect(addr,len,prot) EIO_ENOSYS ()
195#endif
196
197#if !MREMAP_MAYMOVE
198# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
199#endif
200
201#define FOREIGN_MAGIC PERL_MAGIC_ext
202
203static int ecb_cold
204mmap_free (pTHX_ SV *sv, MAGIC *mg)
205{
206 int old_errno = errno;
207 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
208 errno = old_errno;
209
210 mg->mg_obj = 0; /* just in case */
211
212 SvREADONLY_off (sv);
213
214 if (SvPVX (sv) != mg->mg_ptr)
215 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
216
217 SvCUR_set (sv, 0);
218 SvPVX (sv) = 0;
219 SvOK_off (sv);
220
106 return -1; 221 return 0;
222}
107 223
108typedef SV SV8; /* byte-sv, used for argument-checking */ 224static MGVTBL mmap_vtbl = {
109 225 0, 0, 0, 0, mmap_free
110enum {
111 REQ_QUIT,
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 226};
127 227
128#define AIO_REQ_KLASS "IO::AIO::REQ" 228static int ecb_cold
129#define AIO_GRP_KLASS "IO::AIO::GRP" 229sysfree_free (pTHX_ SV *sv, MAGIC *mg)
130
131typedef struct aio_cb
132{ 230{
133 struct aio_cb *volatile next; 231 free (mg->mg_ptr);
232 mg->mg_obj = 0; /* just in case */
134 233
135 SV *callback; 234 SvREADONLY_off (sv);
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142 235
143 STRLEN stroffset; 236 if (SvPVX (sv) != mg->mg_ptr)
144 int type; 237 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 238
149 unsigned char flags; 239 SvCUR_set (sv, 0);
150 unsigned char pri; 240 SvPVX (sv) = 0;
241 SvOK_off (sv);
151 242
152 SV *self; /* the perl counterpart of this request, if any */ 243 return 0;
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 244}
154} aio_cb;
155 245
156enum { 246static MGVTBL sysfree_vtbl = {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */ 247 0, 0, 0, 0, sysfree_free
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160}; 248};
161 249
162typedef aio_cb *aio_req; 250/*****************************************************************************/
163typedef aio_cb *aio_req_ornot;
164 251
165enum { 252/* helper: set scalar to foreign ptr with custom free */
166 PRI_MIN = -4, 253static void
167 PRI_MAX = 4, 254sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
168
169 DEFAULT_PRI = 0,
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{ 255{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 256 sv_force_normal (sv);
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185 257
186static thread_t main_tid; 258 /* we store the length in mg_obj, as namlen is I32 :/ */
187static int main_sig; 259 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
188static int block_sig_level; 260 ->mg_obj = (SV *)length;
189 261
190void block_sig () 262 SvUPGRADE (sv, SVt_PV); /* nop... */
191{
192 sigset_t ss;
193 263
194 if (block_sig_level++) 264 if (SvLEN (sv))
265 Safefree (SvPVX (sv));
266
267 SvPVX (sv) = (char *)addr;
268 SvCUR_set (sv, length);
269 SvLEN_set (sv, 0);
270 SvPOK_only (sv);
271}
272
273static void
274sv_clear_foreign (SV *sv)
275{
276 /* todo: iterate over magic and only free ours, but of course */
277 /* the perl5porters will call that (correct) behaviour buggy */
278 sv_unmagic (sv, FOREIGN_MAGIC);
279}
280
281/*****************************************************************************/
282
283static void
284fiemap (eio_req *req)
285{
286 req->result = -1;
287
288#if HAVE_FIEMAP
289 /* assume some c99 */
290 struct fiemap *fiemap = 0;
291 size_t end_offset;
292 int count = req->int3;
293
294 req->flags |= EIO_FLAG_PTR1_FREE;
295
296 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
297 /* increase in 3.5kb steps */
298 if (count < 0)
299 count = 8;
300
301 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
302 errno = ENOMEM;
303 if (!fiemap)
195 return; 304 return;
196 305
197 if (!main_sig) 306 req->ptr1 = fiemap;
307
308 fiemap->fm_start = req->offs;
309 fiemap->fm_length = req->size;
310 fiemap->fm_flags = req->int2;
311 fiemap->fm_extent_count = count;
312
313 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
198 return; 314 return;
199 315
200 sigemptyset (&ss); 316 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 317 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 318 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 319 goto done;
204 320
205void unblock_sig () 321 /* else we have to loop -
206{ 322 * it would be tempting (actually I tried that first) to just query the
207 sigset_t ss; 323 * number of extents needed, but linux often feels like not returning all
324 * extents, without telling us it left any out. this complicates
325 * this quite a bit.
326 */
208 327
209 if (--block_sig_level) 328 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 329
212 if (!main_sig) 330 for (;;)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 { 331 {
245 closedir (wrk->dirp); 332 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
246 wrk->dirp = 0; 333 char scratch[3072];
247 } 334 struct fiemap *incmap = (struct fiemap *)scratch;
248 335
249 if (wrk->dbuf) 336 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 337 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 338 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 339 incmap->fm_flags = fiemap->fm_flags;
253 } 340 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 341
256static void worker_free (worker *wrk) 342 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0; 343 return;
351 344
352 --q->size; 345 if (!incmap->fm_mapped_extents)
346 goto done;
353 347
354 for (pri = NUM_PRI; pri--; ) 348 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 { 349 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 aio_req req = q->qs[pri]; 350 errno = ENOMEM;
357
358 if (req) 351 if (!fiemap)
352 return;
353
354 req->ptr1 = fiemap;
355
356 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 357 {
360 if (!(q->qs[pri] = req->next)) 358 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 359
363 return req; 360 if (e->fe_logical + e->fe_length >= end_offset)
361 goto done;
362
363 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
364
365 if (e->fe_flags & FIEMAP_EXTENT_LAST)
366 goto done;
367
364 } 368 }
365 } 369 }
366 370
367 abort (); 371done:
368} 372 req->result = 0;
369 373
370static int poll_cb (); 374#else
371static int req_invoke (aio_req req); 375 errno = ENOSYS;
376#endif
377}
378
379/*****************************************************************************/
380
381enum {
382 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
383};
384
385typedef eio_req *aio_req;
386typedef eio_req *aio_req_ornot;
387typedef eio_wd aio_wd;
388
389static SV *on_next_submit;
390static int next_pri = EIO_PRI_DEFAULT;
391static int max_outstanding;
392
393static s_epipe respipe;
394
372static void req_destroy (aio_req req); 395static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 396static void req_cancel (aio_req req);
374 397
398static void
399want_poll (void)
400{
401 /* write a dummy byte to the pipe so fh becomes ready */
402 s_epipe_signal (&respipe);
403}
404
405static void
406done_poll (void)
407{
408 /* read any signals sent by the worker threads */
409 s_epipe_drain (&respipe);
410}
411
375/* must be called at most once */ 412/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 413static SV *
414req_sv (aio_req req, HV *stash)
377{ 415{
378 if (!req->self) 416 if (!req->self)
379 { 417 {
380 req->self = (SV *)newHV (); 418 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 419 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 420 }
383 421
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 422 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 423}
386 424
387static aio_req SvAIO_REQ (SV *sv) 425static SV *
426newSVaio_wd (aio_wd wd)
427{
428 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
429}
430
431static aio_req
432SvAIO_REQ (SV *sv)
388{ 433{
389 MAGIC *mg; 434 MAGIC *mg;
390 435
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 436 if (!SvROK (sv)
437 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
438 || (SvSTASH (SvRV (sv)) != aio_grp_stash
439 && SvSTASH (SvRV (sv)) != aio_req_stash
440 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 441 croak ("object of class IO::AIO::REQ expected");
393 442
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 443 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 444
396 return mg ? (aio_req)mg->mg_ptr : 0; 445 return mg ? (aio_req)mg->mg_ptr : 0;
397} 446}
398 447
448static aio_wd
449SvAIO_WD (SV *sv)
450{
451 if (!SvROK (sv)
452 || SvTYPE (SvRV (sv)) != SVt_PVMG
453 || SvSTASH (SvRV (sv)) != aio_wd_stash)
454 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
455
456 return (aio_wd)(long)SvIVX (SvRV (sv));
457}
458
459static SV *
460newmortalFH (int fd, int flags)
461{
462 if (fd < 0)
463 return &PL_sv_undef;
464
465 GV *gv = (GV *)sv_newmortal ();
466 char sym[64];
467 int symlen;
468
469 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
470 gv_init (gv, aio_stash, sym, symlen, 0);
471
472 symlen = snprintf (
473 sym,
474 sizeof (sym),
475 "%s&=%d",
476 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
477 fd
478 );
479
480 return do_open (gv, sym, symlen, 0, 0, 0, 0)
481 ? (SV *)gv : &PL_sv_undef;
482}
483
484static void
399static void aio_grp_feed (aio_req grp) 485aio_grp_feed (aio_req grp)
400{ 486{
401 block_sig (); 487 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 488 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 489 dSP;
410 490
411 ENTER; 491 ENTER;
412 SAVETMPS; 492 SAVETMPS;
413 PUSHMARK (SP); 493 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 494 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 495 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 496 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 497 SPAGAIN;
418 FREETMPS; 498 FREETMPS;
419 LEAVE; 499 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 500 }
430
431 unblock_sig ();
432} 501}
433 502
434static void aio_grp_dec (aio_req grp) 503static void
504req_submit (eio_req *req)
435{ 505{
436 --grp->size; 506 eio_submit (req);
437 507
438 /* call feeder, if applicable */ 508 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 509 {
444 block_sig (); 510 dSP;
511 SV *cb = sv_2mortal (on_next_submit);
445 512
446 if (!req_invoke (grp)) 513 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 514
453 req_destroy (grp); 515 PUSHMARK (SP);
454 unblock_sig (); 516 PUTBACK;
517 call_sv (cb, G_DISCARD | G_EVAL);
455 } 518 }
456} 519}
457 520
521static int
458static int req_invoke (aio_req req) 522req_invoke (eio_req *req)
459{ 523{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 524 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 525 SvREADONLY_off (req->sv2);
464 526
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 527 if (!EIO_CANCELLED (req) && req->callback)
466 { 528 {
529 dSP;
530 static SV *sv_result_cache; /* caches the result integer SV */
531 SV *sv_result;
532
467 ENTER; 533 ENTER;
468 SAVETMPS; 534 SAVETMPS;
469 PUSHMARK (SP); 535 PUSHMARK (SP);
470 EXTEND (SP, 1); 536 EXTEND (SP, 1);
471 537
538 /* do not recreate the result IV from scratch each time */
539 if (expect_true (sv_result_cache))
540 {
541 sv_result = sv_result_cache; sv_result_cache = 0;
542 SvIV_set (sv_result, req->result);
543 SvIOK_only (sv_result);
544 }
545 else
546 {
547 sv_result = newSViv (req->result);
548 SvREADONLY_on (sv_result);
549 }
550
472 switch (req->type) 551 switch (req->type)
473 { 552 {
553 case EIO_WD_OPEN:
554 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
555 break;
556
474 case REQ_READDIR: 557 case EIO_READDIR:
475 { 558 {
476 SV *rv = &PL_sv_undef; 559 SV *rv = &PL_sv_undef;
477 560
478 if (req->result >= 0) 561 if (req->result >= 0)
479 { 562 {
480 int i; 563 int i;
481 char *buf = req->ptr2; 564 char *names = (char *)req->ptr2;
565 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 566 AV *av = newAV ();
483 567
484 av_extend (av, req->result - 1); 568 av_extend (av, req->result - 1);
485 569
486 for (i = 0; i < req->result; ++i) 570 for (i = 0; i < req->result; ++i)
487 { 571 {
488 SV *sv = newSVpv (buf, 0); 572 if (req->int1 & EIO_READDIR_DENTS)
573 {
574 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 575
576 if (req->int1 & EIO_READDIR_CUSTOM2)
577 {
578 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
579 AV *avent = newAV ();
580
581 av_extend (avent, 2);
582
583 if (!sv_type [ent->type])
584 {
585 sv_type [ent->type] = newSViv (ent->type);
586 SvREADONLY_on (sv_type [ent->type]);
587 }
588
589 av_store (avent, 0, namesv);
590 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
591 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
592
593 av_store (av, i, newRV_noinc ((SV *)avent));
594 }
595 else
490 av_store (av, i, sv); 596 av_store (av, i, namesv);
597
598 ++ent;
599 }
600 else
601 {
602 SV *name = newSVpv (names, 0);
603 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 604 names += SvCUR (name) + 1;
605 }
492 } 606 }
493 607
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 608 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 609 }
496 610
497 PUSHs (rv); 611 PUSHs (rv);
612
613 if (req->int1 & EIO_READDIR_CUSTOM1)
614 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 615 }
499 break; 616 break;
500 617
501 case REQ_OPEN: 618 case EIO_OPEN:
619 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
620 break;
621
622 case EIO_STATVFS:
623 case EIO_FSTATVFS:
502 { 624 {
503 /* convert fd to fh */ 625 SV *rv = &PL_sv_undef;
504 SV *fh; 626
627#ifndef _WIN32
628 if (req->result >= 0)
629 {
630 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
631 HV *hv = newHV ();
632 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
633 * chooses to make it a struct.
634 */
635 unsigned long fsid = 0;
636 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
505 637
506 PUSHs (sv_2mortal (newSViv (req->result))); 638 rv = sv_2mortal (newRV_noinc ((SV *)hv));
507 PUTBACK;
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
509 SPAGAIN;
510 639
511 fh = POPs; 640 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
512 PUSHMARK (SP); 641 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
642 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
643 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
644 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
645 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
646 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
647 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
648 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
649 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
650 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
651 }
652#endif
653
513 XPUSHs (fh); 654 PUSHs (rv);
514 } 655 }
656
515 break; 657 break;
516 658
517 case REQ_GROUP: 659 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 660 req->int1 = 2; /* mark group as finished */
519 661
520 if (req->sv1) 662 if (req->sv1)
521 { 663 {
522 int i; 664 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 668 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 669 PUSHs (*av_fetch (av, i, 0));
528 } 670 }
529 break; 671 break;
530 672
531 case REQ_NOP: 673 case EIO_NOP:
532 case REQ_BUSY: 674 case EIO_BUSY:
533 break; 675 break;
534 676
535 case REQ_READLINK: 677 case EIO_READLINK:
678 case EIO_REALPATH:
536 if (req->result > 0) 679 if (req->result > 0)
680 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
681 break;
682
683 case EIO_STAT:
684 case EIO_LSTAT:
685 case EIO_FSTAT:
686 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
687
688 if (!(PL_laststatval = req->result))
689 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
690 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
691
692 PUSHs (sv_result);
693 break;
694
695 case EIO_SEEK:
696 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
697 break;
698
699 case EIO_READ:
700 {
701 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
702 *SvEND (req->sv2) = 0;
703 SvPOK_only (req->sv2);
704 SvSETMAGIC (req->sv2);
705 PUSHs (sv_result);
706 }
707 break;
708
709 case EIO_SLURP:
710 {
711 if (req->result >= 0)
712 {
713 /* if length was originally not known, we steal the malloc'ed memory */
714 if (req->flags & EIO_FLAG_PTR2_FREE)
715 {
716 req->flags &= ~EIO_FLAG_PTR2_FREE;
717 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
718 }
719 else
720 {
721 SvCUR_set (req->sv2, req->result);
722 *SvEND (req->sv2) = 0;
723 SvPOK_only (req->sv2);
724 }
725
726 SvSETMAGIC (req->sv2);
727 }
728
729 PUSHs (sv_result);
730 }
731 break;
732
733 case EIO_CUSTOM:
734 if (req->feed == fiemap)
537 { 735 {
538 SvCUR_set (req->sv2, req->result); 736#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 737 if (!req->result)
738 {
739 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
740
741 if (fiemap->fm_extent_count)
742 {
743 AV *av = newAV ();
744 int i;
745
746 while (fiemap->fm_mapped_extents)
747 {
748 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
749 AV *ext_av = newAV ();
750
751 av_store (ext_av, 3, newSVuv (extent->fe_flags));
752 av_store (ext_av, 2, newSVval64 (extent->fe_length));
753 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
754 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
755
756 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
757 }
758
759 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
760 }
761 else
762 {
763 SvIV_set (sv_result, fiemap->fm_mapped_extents);
764 PUSHs (sv_result);
765 }
766 }
767#endif
541 } 768 }
769 else
770 PUSHs (sv_result);
542 break; 771 break;
543 772
544 case REQ_STAT: 773 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 774 if (req->result > 0)
546 case REQ_FSTAT: 775 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 776 /* FALLTHROUGH */
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break;
552
553 case REQ_READ:
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result)));
557 break;
558 777
559 default: 778 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 779 PUSHs (sv_result);
561 break; 780 break;
562 } 781 }
563 782
564 errno = req->errorno; 783 errno = req->errorno;
565 784
566 PUTBACK; 785 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 786 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 787 SPAGAIN;
788
789 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
790 SvREFCNT_dec (sv_result);
791 else
792 sv_result_cache = sv_result;
569 793
570 FREETMPS; 794 FREETMPS;
571 LEAVE; 795 LEAVE;
796
797 PUTBACK;
572 } 798 }
573 799
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 800 return !!SvTRUE (ERRSV);
589} 801}
590 802
803static void
591static void req_destroy (aio_req req) 804req_destroy (aio_req req)
592{ 805{
593 if (req->self) 806 if (req->self)
594 { 807 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 808 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 809 SvREFCNT_dec (req->self);
597 } 810 }
598 811
599 SvREFCNT_dec (req->sv1); 812 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 813 SvREFCNT_dec (req->sv2);
814 SvREFCNT_dec (req->sv3);
815 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 816 SvREFCNT_dec (req->callback);
602 817
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 818 free (req);
607} 819}
608 820
821static void
609static void req_cancel_subs (aio_req grp) 822req_cancel_subs (aio_req grp)
610{ 823{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 824 if (grp->type != EIO_GROUP)
614 return; 825 return;
615 826
616 SvREFCNT_dec (grp->sv2); 827 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 828 grp->sv2 = 0;
618 829
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 830 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 831}
622 832
623static void req_cancel (aio_req req) 833static void ecb_cold
834create_respipe (void)
624{ 835{
625 req->flags |= FLAG_CANCELLED; 836 if (s_epipe_renew (&respipe))
626 837 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 838}
629 839
630X_THREAD_PROC (aio_proc); 840static void
631 841poll_wait (void)
632static void start_thread (void)
633{ 842{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 843 while (eio_nreqs ())
730 { 844 {
731 int size; 845 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 846
847 X_LOCK (EIO_POOL->reslock);
733 size = res_queue.size; 848 size = EIO_POOL->res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 849 X_UNLOCK (EIO_POOL->reslock);
735 850
736 if (size) 851 if (size)
737 return; 852 return;
738 853
739 maybe_start_thread (); 854 etp_maybe_start_thread (EIO_POOL);
740 855
741 FD_ZERO(&rfd); 856 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 857 }
746} 858}
747 859
748static int poll_cb () 860static int
861poll_cb (void)
749{ 862{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 863 for (;;)
763 { 864 {
764 for (;;) 865 int res = eio_poll ();
866
867 if (res > 0)
868 croak (0);
869
870 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 return res;
872
873 poll_wait ();
874 }
875}
876
877static void ecb_cold
878reinit (void)
879{
880 create_respipe ();
881
882 if (eio_init (want_poll, done_poll) < 0)
883 croak ("IO::AIO: unable to initialise eio library");
884}
885
886/*****************************************************************************/
887
888static SV *
889get_cb (SV *cb_sv)
890{
891 SvGETMAGIC (cb_sv);
892 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
893}
894
895static aio_req ecb_noinline
896dreq (SV *callback)
897{
898 SV *cb_cv;
899 aio_req req;
900 int req_pri = next_pri;
901 next_pri = EIO_PRI_DEFAULT;
902
903 cb_cv = get_cb (callback);
904
905 req = calloc (sizeof (*req), 1);
906 if (!req)
907 croak ("out of memory during eio_req allocation");
908
909 req->callback = SvREFCNT_inc (cb_cv);
910 req->pri = req_pri;
911
912 return req;
913}
914
915#define dREQ \
916 aio_req req = dreq (callback); \
917
918#define REQ_SEND \
919 PUTBACK; \
920 req_submit (req); \
921 SPAGAIN; \
922 \
923 if (GIMME_V != G_VOID) \
924 XPUSHs (req_sv (req, aio_req_stash));
925
926ecb_inline void
927req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
928{
929 if (expect_false (SvROK (path)))
930 {
931 SV *rv = SvRV (path);
932 SV *wdob;
933
934 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 935 {
766 maybe_start_thread (); 936 path = AvARRAY (rv)[1];
937 wdob = AvARRAY (rv)[0];
767 938
768 X_LOCK (reslock); 939 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 940 {
773 --npending; 941 *wd = SvAIO_WD (wdob);
774 942 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 943 }
796 else 944 else
797 { 945 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 946 }
947 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
948 {
949 *wd = (aio_wd)(long)SvIVX (rv);
950 *wdsv = SvREFCNT_inc_NN (rv);
951 *ptr = ".";
952 return; /* path set to "." */
953 }
954 else
955 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
956 }
821 957
822 if (nreqs <= max_outstanding) 958 *pathsv = newSVsv (path);
959 *ptr = SvPVbyte_nolen (*pathsv);
960}
961
962static void ecb_noinline
963req_set_path1 (aio_req req, SV *path)
964{
965 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
966}
967
968static void ecb_noinline
969req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
970{
971 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
972
973 switch (SvTYPE (rv))
974 {
975 case SVt_PVIO:
976 case SVt_PVLV:
977 case SVt_PVGV:
978 req->type = type_fh;
979 req->sv1 = newSVsv (fh_or_path);
980 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 981 break;
824 982
825 poll_wait (); 983 default:
826 984 req->type = type_path;
827 ++maxreqs; 985 req_set_path1 (req, fh_or_path);
986 break;
828 } 987 }
829
830 unblock_sig ();
831 return count;
832} 988}
833 989
834/*****************************************************************************/ 990/*****************************************************************************/
835/* work around various missing functions */
836 991
837#if !HAVE_PREADWRITE 992static void
838# define pread aio_pread 993ts_set (struct timespec *ts, NV value)
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{ 994{
850 ssize_t res; 995 ts->tv_sec = value;
851 off_t ooffset; 996 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861} 997}
862 998
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 999static NV
1000ts_get (const struct timespec *ts)
864{ 1001{
865 ssize_t res; 1002 return ts->tv_sec + ts->tv_nsec * 1e-9;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055}
1056
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116} 1003}
1117 1004
1118/*****************************************************************************/ 1005/*****************************************************************************/
1119 1006
1120X_THREAD_PROC (aio_proc) 1007XS(boot_IO__AIO) ecb_cold;
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126 1008
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO 1009MODULE = IO::AIO PACKAGE = IO::AIO
1379 1010
1380PROTOTYPES: ENABLE 1011PROTOTYPES: ENABLE
1381 1012
1382BOOT: 1013BOOT:
1383{ 1014{
1015 static const struct {
1016 const char *name;
1017 IV iv;
1018 } *civ, const_iv[] = {
1019# define const_niv(name, value) { # name, (IV) value },
1020# define const_iv(name) { # name, (IV) name },
1021# define const_eio(name) { # name, (IV) EIO_ ## name },
1022
1023 /* you have to re-run ./gendef0 after adding/removing any constants here */
1024 /* the first block can be undef if missing */
1025 const_iv (ENOSYS)
1026 const_iv (EXDEV)
1027 const_iv (EBADR)
1028
1029 /* for lseek */
1030 const_iv (SEEK_DATA)
1031 const_iv (SEEK_HOLE)
1032
1033 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1034 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1035 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1036 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1037 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1038 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1039
1040 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1041 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1042 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1043 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1044 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1045
1046 /* the second block will be 0 when missing */
1047 const_iv (O_ACCMODE)
1048
1049 const_iv (O_RDONLY)
1050 const_iv (O_WRONLY)
1051 const_iv (O_RDWR)
1052 const_iv (O_CREAT)
1053 const_iv (O_TRUNC)
1054 const_iv (O_EXCL)
1055 const_iv (O_APPEND)
1056
1057 const_iv (O_ASYNC)
1058 const_iv (O_DIRECT)
1059 const_iv (O_NOATIME)
1060
1061 const_iv (O_CLOEXEC)
1062 const_iv (O_NOCTTY)
1063 const_iv (O_NOFOLLOW)
1064 const_iv (O_NONBLOCK)
1065 const_iv (O_EXEC)
1066 const_iv (O_SEARCH)
1067 const_iv (O_DIRECTORY)
1068 const_iv (O_DSYNC)
1069 const_iv (O_RSYNC)
1070 const_iv (O_SYNC)
1071 const_iv (O_PATH)
1072 const_iv (O_TMPFILE)
1073 const_iv (O_TTY_INIT)
1074
1075 const_iv (S_IFIFO)
1076 const_iv (S_IFCHR)
1077 const_iv (S_IFBLK)
1078 const_iv (S_IFLNK)
1079 const_iv (S_IFREG)
1080 const_iv (S_IFDIR)
1081 const_iv (S_IFWHT)
1082 const_iv (S_IFSOCK)
1083 const_iv (S_IFMT)
1084
1085 const_iv (ST_RDONLY)
1086 const_iv (ST_NOSUID)
1087 const_iv (ST_NODEV)
1088 const_iv (ST_NOEXEC)
1089 const_iv (ST_SYNCHRONOUS)
1090 const_iv (ST_MANDLOCK)
1091 const_iv (ST_WRITE)
1092 const_iv (ST_APPEND)
1093 const_iv (ST_IMMUTABLE)
1094 const_iv (ST_NOATIME)
1095 const_iv (ST_NODIRATIME)
1096 const_iv (ST_RELATIME)
1097
1098 const_iv (PROT_NONE)
1099 const_iv (PROT_EXEC)
1100 const_iv (PROT_READ)
1101 const_iv (PROT_WRITE)
1102
1103 const_iv (MAP_PRIVATE)
1104 const_iv (MAP_SHARED)
1105 const_iv (MAP_FIXED)
1106 const_iv (MAP_ANONYMOUS)
1107
1108 /* linuxish */
1109 const_iv (MAP_LOCKED)
1110 const_iv (MAP_NORESERVE)
1111 const_iv (MAP_POPULATE)
1112 const_iv (MAP_NONBLOCK)
1113 const_iv (MAP_GROWSDOWN)
1114 const_iv (MAP_32BIT)
1115 const_iv (MAP_HUGETLB)
1116 const_iv (MAP_STACK)
1117
1118 const_iv (MREMAP_MAYMOVE)
1119 const_iv (MREMAP_FIXED)
1120
1121 const_iv (F_DUPFD_CLOEXEC)
1122
1123 const_iv (F_OFD_GETLK)
1124 const_iv (F_OFD_SETLK)
1125 const_iv (F_OFD_GETLKW)
1126
1127 const_iv (FIFREEZE)
1128 const_iv (FITHAW)
1129 const_iv (FITRIM)
1130 const_iv (FICLONE)
1131 const_iv (FICLONERANGE)
1132 const_iv (FIDEDUPERANGE)
1133
1134 const_iv (FS_IOC_GETFLAGS)
1135 const_iv (FS_IOC_SETFLAGS)
1136 const_iv (FS_IOC_GETVERSION)
1137 const_iv (FS_IOC_SETVERSION)
1138 const_iv (FS_IOC_FIEMAP)
1139 const_iv (FS_IOC_FSGETXATTR)
1140 const_iv (FS_IOC_FSSETXATTR)
1141 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1142 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1143 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1144
1145 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1146
1147 const_iv (FS_SECRM_FL)
1148 const_iv (FS_UNRM_FL)
1149 const_iv (FS_COMPR_FL)
1150 const_iv (FS_SYNC_FL)
1151 const_iv (FS_IMMUTABLE_FL)
1152 const_iv (FS_APPEND_FL)
1153 const_iv (FS_NODUMP_FL)
1154 const_iv (FS_NOATIME_FL)
1155 const_iv (FS_DIRTY_FL)
1156 const_iv (FS_COMPRBLK_FL)
1157 const_iv (FS_NOCOMP_FL)
1158 const_iv (FS_ENCRYPT_FL)
1159 const_iv (FS_BTREE_FL)
1160 const_iv (FS_INDEX_FL)
1161 const_iv (FS_JOURNAL_DATA_FL)
1162 const_iv (FS_NOTAIL_FL)
1163 const_iv (FS_DIRSYNC_FL)
1164 const_iv (FS_TOPDIR_FL)
1165 const_iv (FS_FL_USER_MODIFIABLE)
1166
1167 const_iv (FS_XFLAG_REALTIME)
1168 const_iv (FS_XFLAG_PREALLOC)
1169 const_iv (FS_XFLAG_IMMUTABLE)
1170 const_iv (FS_XFLAG_APPEND)
1171 const_iv (FS_XFLAG_SYNC)
1172 const_iv (FS_XFLAG_NOATIME)
1173 const_iv (FS_XFLAG_NODUMP)
1174 const_iv (FS_XFLAG_RTINHERIT)
1175 const_iv (FS_XFLAG_PROJINHERIT)
1176 const_iv (FS_XFLAG_NOSYMLINKS)
1177 const_iv (FS_XFLAG_EXTSIZE)
1178 const_iv (FS_XFLAG_EXTSZINHERIT)
1179 const_iv (FS_XFLAG_NODEFRAG)
1180 const_iv (FS_XFLAG_FILESTREAM)
1181 const_iv (FS_XFLAG_DAX)
1182 const_iv (FS_XFLAG_HASATTR)
1183
1184 const_iv (FIEMAP_FLAG_SYNC)
1185 const_iv (FIEMAP_FLAG_XATTR)
1186 const_iv (FIEMAP_FLAGS_COMPAT)
1187 const_iv (FIEMAP_EXTENT_LAST)
1188 const_iv (FIEMAP_EXTENT_UNKNOWN)
1189 const_iv (FIEMAP_EXTENT_DELALLOC)
1190 const_iv (FIEMAP_EXTENT_ENCODED)
1191 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1192 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1193 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1194 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1195 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1196 const_iv (FIEMAP_EXTENT_MERGED)
1197 const_iv (FIEMAP_EXTENT_SHARED)
1198
1199 const_iv (SPLICE_F_MOVE)
1200 const_iv (SPLICE_F_NONBLOCK)
1201 const_iv (SPLICE_F_MORE)
1202 const_iv (SPLICE_F_GIFT)
1203
1204 const_iv (EFD_CLOEXEC)
1205 const_iv (EFD_NONBLOCK)
1206 const_iv (EFD_SEMAPHORE)
1207
1208 const_iv (CLOCK_REALTIME)
1209 const_iv (CLOCK_MONOTONIC)
1210 const_iv (CLOCK_BOOTTIME)
1211 const_iv (CLOCK_REALTIME_ALARM)
1212 const_iv (CLOCK_BOOTTIME_ALARM)
1213
1214 const_iv (TFD_NONBLOCK)
1215 const_iv (TFD_CLOEXEC)
1216
1217 const_iv (TFD_TIMER_ABSTIME)
1218 const_iv (TFD_TIMER_CANCEL_ON_SET)
1219
1220 /* these are libeio constants, and are independent of gendef0 */
1221 const_eio (SEEK_SET)
1222 const_eio (SEEK_CUR)
1223 const_eio (SEEK_END)
1224
1225 const_eio (MCL_FUTURE)
1226 const_eio (MCL_CURRENT)
1227
1228 const_eio (MS_ASYNC)
1229 const_eio (MS_INVALIDATE)
1230 const_eio (MS_SYNC)
1231
1232 const_eio (MT_MODIFY)
1233
1234 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1235 const_eio (SYNC_FILE_RANGE_WRITE)
1236 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1237
1238 const_eio (FALLOC_FL_KEEP_SIZE)
1239 const_eio (FALLOC_FL_PUNCH_HOLE)
1240 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1241 const_eio (FALLOC_FL_ZERO_RANGE)
1242 const_eio (FALLOC_FL_INSERT_RANGE)
1243 const_eio (FALLOC_FL_UNSHARE_RANGE)
1244
1245 const_eio (RENAME_NOREPLACE)
1246 const_eio (RENAME_EXCHANGE)
1247 const_eio (RENAME_WHITEOUT)
1248
1249 const_eio (READDIR_DENTS)
1250 const_eio (READDIR_DIRS_FIRST)
1251 const_eio (READDIR_STAT_ORDER)
1252 const_eio (READDIR_FOUND_UNKNOWN)
1253
1254 const_eio (DT_UNKNOWN)
1255 const_eio (DT_FIFO)
1256 const_eio (DT_CHR)
1257 const_eio (DT_DIR)
1258 const_eio (DT_BLK)
1259 const_eio (DT_REG)
1260 const_eio (DT_LNK)
1261 const_eio (DT_SOCK)
1262 const_eio (DT_WHT)
1263 };
1264
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 1265 aio_stash = gv_stashpv ("IO::AIO" , 1);
1266 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1267 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1268 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 1269
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1270 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1271 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 1272
1403 if (!create_pipe (respipe)) 1273 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1274
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1275 reinit ();
1407} 1276}
1408 1277
1409void 1278void
1279reinit ()
1280 PROTOTYPE:
1281
1282void
1410max_poll_reqs (int nreqs) 1283max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1284 PROTOTYPE: $
1412 CODE: 1285 CODE:
1413 max_poll_reqs = nreqs; 1286 eio_set_max_poll_reqs (nreqs);
1414 1287
1415void 1288void
1416max_poll_time (double nseconds) 1289max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1290 PROTOTYPE: $
1418 CODE: 1291 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1292 eio_set_max_poll_time (nseconds);
1420 1293
1421void 1294void
1422min_parallel (int nthreads) 1295min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1296 PROTOTYPE: $
1432 CODE: 1297 CODE:
1433 set_max_idle (nthreads); 1298 eio_set_min_parallel (nthreads);
1434 1299
1435int 1300void
1436max_outstanding (int maxreqs) 1301max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1302 PROTOTYPE: $
1438 CODE: 1303 CODE:
1439 RETVAL = max_outstanding; 1304 eio_set_max_parallel (nthreads);
1305
1306void
1307max_idle (unsigned int nthreads)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_max_idle (nthreads);
1311
1312void
1313idle_timeout (unsigned int seconds)
1314 PROTOTYPE: $
1315 CODE:
1316 eio_set_idle_timeout (seconds);
1317
1318void
1319max_outstanding (unsigned int maxreqs)
1320 PROTOTYPE: $
1321 CODE:
1440 max_outstanding = maxreqs; 1322 max_outstanding = maxreqs;
1441 OUTPUT:
1442 RETVAL
1443 1323
1444void 1324void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1325aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1326 PPCODE:
1448{ 1327{
1449 dREQ; 1328 dREQ;
1450 1329
1330 req->type = EIO_WD_OPEN;
1331 req_set_path1 (req, pathname);
1332
1333 REQ_SEND;
1334}
1335
1336void
1337aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1338 PPCODE:
1339{
1340 dREQ;
1341
1451 req->type = REQ_OPEN; 1342 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1343 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1344 req->int1 = flags;
1455 req->mode = mode; 1345 req->int2 = mode;
1456 1346
1457 REQ_SEND; 1347 REQ_SEND;
1458} 1348}
1459 1349
1460void 1350void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1351aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1352 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1353 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1354 aio_fdatasync = EIO_FDATASYNC
1355 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1356 PPCODE:
1468{ 1357{
1358 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1359 dREQ;
1470 1360
1471 req->type = ix; 1361 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1362 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1363 req->int1 = fd;
1474 1364
1475 REQ_SEND (req); 1365 REQ_SEND;
1476} 1366}
1477 1367
1478void 1368void
1369aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1370 PPCODE:
1371{
1372 int fd = s_fileno_croak (fh, 0);
1373 dREQ;
1374
1375 req->type = EIO_SYNC_FILE_RANGE;
1376 req->sv1 = newSVsv (fh);
1377 req->int1 = fd;
1378 req->offs = offset;
1379 req->size = nbytes;
1380 req->int2 = flags;
1381
1382 REQ_SEND;
1383}
1384
1385void
1386aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1387 PPCODE:
1388{
1389 int fd = s_fileno_croak (fh, 0);
1390 dREQ;
1391
1392 req->type = EIO_FALLOCATE;
1393 req->sv1 = newSVsv (fh);
1394 req->int1 = fd;
1395 req->int2 = mode;
1396 req->offs = offset;
1397 req->size = len;
1398
1399 REQ_SEND;
1400}
1401
1402void
1403aio_close (SV *fh, SV *callback = &PL_sv_undef)
1404 PPCODE:
1405{
1406 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1407 int fd = s_fileno_croak (fh, 0);
1408 dREQ;
1409
1410 if (expect_false (close_fd < 0))
1411 {
1412 int pipefd [2];
1413
1414 if (
1415#ifdef _WIN32
1416 _pipe (pipefd, 1, _O_BINARY) < 0
1417#else
1418 pipe (pipefd) < 0
1419 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1420#endif
1421 || close (pipefd [1]) < 0
1422 )
1423 abort (); /*D*/
1424
1425 close_fd = pipefd [0];
1426 }
1427
1428 req->type = EIO_DUP2;
1429 req->int1 = close_fd;
1430 req->sv2 = newSVsv (fh);
1431 req->int2 = fd;
1432
1433 REQ_SEND;
1434}
1435
1436void
1437aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1438 PPCODE:
1439{
1440 int fd = s_fileno_croak (fh, 0);
1441 dREQ;
1442
1443 req->type = EIO_SEEK;
1444 req->sv1 = newSVsv (fh);
1445 req->int1 = fd;
1446 req->offs = SvVAL64 (offset);
1447 req->int2 = whence;
1448
1449 REQ_SEND;
1450}
1451
1452void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1453aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1480 ALIAS: 1454 ALIAS:
1481 aio_read = REQ_READ 1455 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1456 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1457 PPCODE:
1485{ 1458{
1486 STRLEN svlen; 1459 STRLEN svlen;
1460 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1461 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1462 UV len = SvUV (length);
1489 1463
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1464 if (dataoffset < 0)
1494 dataoffset += svlen; 1465 dataoffset += svlen;
1495 1466
1496 if (dataoffset < 0 || dataoffset > svlen) 1467 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1468 croak ("dataoffset outside of data scalar");
1498 1469
1499 if (ix == REQ_WRITE) 1470 if (ix == EIO_WRITE)
1500 { 1471 {
1501 /* write: check length and adjust. */ 1472 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1473 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1474 len = svlen - dataoffset;
1504 } 1475 }
1505 else 1476 else
1506 { 1477 {
1507 /* read: grow scalar as necessary */ 1478 /* read: check type and grow scalar as necessary */
1479 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1480 svptr = sv_grow (data, len + dataoffset + 1);
1481 else if (SvCUR (data) < len + dataoffset)
1482 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1483 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1484
1514 { 1485 {
1515 dREQ; 1486 dREQ;
1516 1487
1517 req->type = ix; 1488 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1489 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1490 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1491 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1492 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1493 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1494 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1495 req->stroffset = dataoffset;
1526 1496
1527 if (!SvREADONLY (data)) 1497 if (!SvREADONLY (data))
1528 { 1498 {
1529 SvREADONLY_on (data); 1499 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1503 REQ_SEND;
1534 } 1504 }
1535} 1505}
1536 1506
1537void 1507void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1508aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $$;$ 1509 ALIAS:
1510 aio_ioctl = EIO_IOCTL
1511 aio_fcntl = EIO_FCNTL
1540 PPCODE: 1512 PPCODE:
1541{ 1513{
1542 SV *data; 1514 int fd = s_fileno_croak (fh, 0);
1543 dREQ; 1515 char *svptr;
1544 1516
1545 data = newSV (NAME_MAX); 1517 if (SvPOK (arg) || !SvNIOK (arg))
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK;
1549 req->sv1 = newSVsv (path);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553
1554 REQ_SEND;
1555}
1556
1557void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = REQ_SENDFILE;
1565 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1567 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1569 req->offs = SvVAL64 (in_offset);
1570 req->size = length;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE:
1579{
1580 dREQ;
1581
1582 req->type = REQ_READAHEAD;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1585 req->offs = SvVAL64 (offset);
1586 req->size = length;
1587
1588 REQ_SEND;
1589}
1590
1591void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS:
1594 aio_stat = REQ_STAT
1595 aio_lstat = REQ_LSTAT
1596 PPCODE:
1597{
1598 dREQ;
1599
1600 req->ptr2 = malloc (sizeof (Stat_t));
1601 if (!req->ptr2)
1602 { 1518 {
1603 req_destroy (req); 1519 STRLEN svlen;
1604 croak ("out of memory during aio_stat statdata allocation"); 1520 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1605 } 1521#ifdef IOCPARM_LEN
1522 STRLEN need = IOCPARM_LEN (request);
1523#else
1524 STRLEN need = 256;
1525#endif
1606 1526
1607 req->flags |= FLAG_PTR2_FREE; 1527 if (svlen < need)
1608 req->sv1 = newSVsv (fh_or_path); 1528 svptr = SvGROW (arg, need);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 } 1529 }
1615 else 1530 else
1531 svptr = (char *)SvIV (arg);
1532
1616 { 1533 {
1534 dREQ;
1535
1617 req->type = REQ_FSTAT; 1536 req->type = ix;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539 req->int2 = (long)request;
1540 req->sv2 = SvREFCNT_inc (arg);
1541 req->ptr2 = svptr;
1542
1543 REQ_SEND;
1619 } 1544 }
1545}
1546
1547void
1548aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1549 ALIAS:
1550 aio_readlink = EIO_READLINK
1551 aio_realpath = EIO_REALPATH
1552 PPCODE:
1553{
1554 dREQ;
1555
1556 req->type = ix;
1557 req_set_path1 (req, pathname);
1620 1558
1621 REQ_SEND; 1559 REQ_SEND;
1622} 1560}
1623 1561
1624void 1562void
1563aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1564 PPCODE:
1565{
1566 int ifd = s_fileno_croak (in_fh , 0);
1567 int ofd = s_fileno_croak (out_fh, 1);
1568 dREQ;
1569
1570 req->type = EIO_SENDFILE;
1571 req->sv1 = newSVsv (out_fh);
1572 req->int1 = ofd;
1573 req->sv2 = newSVsv (in_fh);
1574 req->int2 = ifd;
1575 req->offs = in_offset;
1576 req->size = length;
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1583 PPCODE:
1584{
1585 int fd = s_fileno_croak (fh, 0);
1586 dREQ;
1587
1588 req->type = EIO_READAHEAD;
1589 req->sv1 = newSVsv (fh);
1590 req->int1 = fd;
1591 req->offs = offset;
1592 req->size = length;
1593
1594 REQ_SEND;
1595}
1596
1597void
1598aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1599 ALIAS:
1600 aio_stat = EIO_STAT
1601 aio_lstat = EIO_LSTAT
1602 aio_statvfs = EIO_STATVFS
1603 PPCODE:
1604{
1605 dREQ;
1606
1607 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1608
1609 REQ_SEND;
1610}
1611
1612UV
1613major (UV dev)
1614 ALIAS:
1615 minor = 1
1616 CODE:
1617 RETVAL = ix ? minor (dev) : major (dev);
1618 OUTPUT:
1619 RETVAL
1620
1621UV
1622makedev (UV maj, UV min)
1623 CODE:
1624 RETVAL = makedev (maj, min);
1625 OUTPUT:
1626 RETVAL
1627
1628void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1629aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1626 PPCODE: 1630 PPCODE:
1627{ 1631{
1628 dREQ; 1632 dREQ;
1629 1633
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1634 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1635 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1636 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1637
1645 REQ_SEND; 1638 REQ_SEND;
1646} 1639}
1647 1640
1648void 1641void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1642aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1650 PPCODE: 1643 PPCODE:
1651{ 1644{
1652 dREQ; 1645 dREQ;
1653 1646
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1647 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1648 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1649
1668 REQ_SEND; 1650 REQ_SEND;
1669} 1651}
1670 1652
1671void 1653void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1654aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1673 PPCODE: 1655 PPCODE:
1674{ 1656{
1675 dREQ; 1657 dREQ;
1676 1658
1677 req->mode = mode; 1659 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1660 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1661
1691 REQ_SEND; 1662 REQ_SEND;
1692} 1663}
1693 1664
1694void 1665void
1695aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1666aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1696 PPCODE: 1667 PPCODE:
1697{ 1668{
1698 dREQ; 1669 dREQ;
1699 1670
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1671 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1672 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1673 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703
1704 if (SvPOK (fh_or_path))
1705 {
1706 req->type = REQ_CHOWN;
1707 req->ptr1 = SvPVbyte_nolen (req->sv1);
1708 }
1709 else
1710 {
1711 req->type = REQ_FCHOWN;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1713 }
1714 1674
1715 REQ_SEND; 1675 REQ_SEND;
1716} 1676}
1717 1677
1718void 1678void
1679aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->type = EIO_READDIR;
1685 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1686
1687 if (flags & EIO_READDIR_DENTS)
1688 req->int1 |= EIO_READDIR_CUSTOM2;
1689
1690 req_set_path1 (req, pathname);
1691
1692 REQ_SEND;
1693}
1694
1695void
1696aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1697 PPCODE:
1698{
1699 dREQ;
1700
1701 req->type = EIO_MKDIR;
1702 req->int2 = mode;
1703 req_set_path1 (req, pathname);
1704
1705 REQ_SEND;
1706}
1707
1708void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1709aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1720 ALIAS: 1710 ALIAS:
1721 aio_unlink = REQ_UNLINK 1711 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1712 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1713 aio_readdir = EIO_READDIR
1724 PPCODE: 1714 PPCODE:
1725{ 1715{
1726 dREQ; 1716 dREQ;
1727 1717
1728 req->type = ix; 1718 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1719 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731 1720
1732 REQ_SEND; 1721 REQ_SEND;
1733} 1722}
1734 1723
1735void 1724void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1725aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1726 ALIAS:
1727 aio_link = EIO_LINK
1728 aio_symlink = EIO_SYMLINK
1729 aio_rename = EIO_RENAME
1737 PPCODE: 1730 PPCODE:
1738{ 1731{
1739 dREQ; 1732 eio_wd wd2 = 0;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745
1746 REQ_SEND;
1747}
1748
1749void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS:
1752 aio_link = REQ_LINK
1753 aio_symlink = REQ_SYMLINK
1754 aio_rename = REQ_RENAME
1755 PPCODE:
1756{
1757 dREQ; 1733 dREQ;
1758 1734
1759 req->type = ix; 1735 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1736 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1737 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1738 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1739
1765 REQ_SEND; 1740 REQ_SEND;
1766} 1741}
1767 1742
1768void 1743void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1744aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1770 PPCODE: 1745 PPCODE:
1771{ 1746{
1747 eio_wd wd2 = 0;
1772 dREQ; 1748 dREQ;
1773 1749
1774 req->type = REQ_MKNOD; 1750 req->type = EIO_RENAME;
1775 req->sv1 = newSVsv (pathname); 1751 req_set_path1 (req, oldpath);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1); 1752 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1777 req->mode = (mode_t)mode; 1753 req->int2 = flags;
1778 req->offs = dev; 1754 req->int3 = (long)wd2;
1779 1755
1780 REQ_SEND; 1756 REQ_SEND;
1781} 1757}
1782 1758
1783void 1759void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1760aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1785 PPCODE: 1761 PPCODE:
1786{ 1762{
1787 dREQ; 1763 dREQ;
1764
1765 req->type = EIO_MKNOD;
1766 req->int2 = (mode_t)mode;
1767 req->offs = dev;
1768 req_set_path1 (req, pathname);
1769
1770 REQ_SEND;
1771}
1788 1772
1773void
1774aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1775 ALIAS:
1776 aio_mtouch = EIO_MTOUCH
1777 aio_msync = EIO_MSYNC
1778 PPCODE:
1779{
1780 STRLEN svlen;
1781 char *svptr = SvPVbyte (data, svlen);
1782 UV len = SvUV (length);
1783
1784 if (flags < 0)
1785 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1786
1787 if (offset < 0)
1788 offset += svlen;
1789
1790 if (offset < 0 || offset > svlen)
1791 croak ("offset outside of scalar");
1792
1793 if (!SvOK (length) || len + offset > svlen)
1794 len = svlen - offset;
1795
1796 {
1797 dREQ;
1798
1799 req->type = ix;
1800 req->sv2 = SvREFCNT_inc (data);
1801 req->ptr2 = (char *)svptr + offset;
1802 req->size = len;
1803 req->int1 = flags;
1804
1805 REQ_SEND;
1806 }
1807}
1808
1809void
1810aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1811 PPCODE:
1812{
1813 STRLEN svlen;
1814 char *svptr = SvPVbyte (data, svlen);
1815 UV len = SvUV (length);
1816
1817 if (offset < 0)
1818 offset += svlen;
1819
1820 if (offset < 0 || offset > svlen)
1821 croak ("offset outside of scalar");
1822
1823 if (!SvOK (length) || len + offset > svlen)
1824 len = svlen - offset;
1825
1826 {
1827 dREQ;
1828
1829 req->type = EIO_MLOCK;
1830 req->sv2 = SvREFCNT_inc (data);
1831 req->ptr2 = (char *)svptr + offset;
1832 req->size = len;
1833
1834 REQ_SEND;
1835 }
1836}
1837
1838void
1839aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1840 PPCODE:
1841{
1842 dREQ;
1843
1844 req->type = EIO_MLOCKALL;
1845 req->int1 = flags;
1846
1847 REQ_SEND;
1848}
1849
1850void
1851aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1852 PPCODE:
1853{
1854 int fd = s_fileno_croak (fh, 0);
1855 dREQ;
1856
1857 req->type = EIO_CUSTOM;
1858 req->sv1 = newSVsv (fh);
1859 req->int1 = fd;
1860
1861 req->feed = fiemap;
1862#if HAVE_FIEMAP
1863 /* keep our fingers crossed that the next two types are 64 bit */
1864 req->offs = start;
1865 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1866 req->int2 = flags;
1867 req->int3 = SvOK (count) ? SvIV (count) : -1;
1868#endif
1869
1870 REQ_SEND;
1871}
1872
1873void
1874aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1875 PPCODE:
1876{
1877 char *svptr = 0;
1878
1879 sv_clear_foreign (data);
1880
1881 if (length) /* known length, directly read into scalar */
1882 {
1883 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1884 svptr = sv_grow (data, length + 1);
1885 else if (SvCUR (data) < length)
1886 croak ("length outside of scalar, and cannot grow");
1887 else
1888 svptr = SvPVbyte_nolen (data);
1889 }
1890
1891 {
1892 dREQ;
1893
1894 req->type = EIO_SLURP;
1895 req_set_path1 (req, pathname);
1896 req->offs = offset;
1897 req->size = length;
1898 req->sv2 = SvREFCNT_inc (data);
1899 req->ptr2 = svptr;
1900
1901 if (!SvREADONLY (data))
1902 {
1903 SvREADONLY_on (data);
1904 req->flags |= FLAG_SV2_RO_OFF;
1905 }
1906
1907 REQ_SEND;
1908 }
1909}
1910
1911void
1912aio_busy (double delay, SV *callback = &PL_sv_undef)
1913 PPCODE:
1914{
1915 dREQ;
1916
1789 req->type = REQ_BUSY; 1917 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1918 req->nv1 = delay < 0. ? 0. : delay;
1791 1919
1792 REQ_SEND; 1920 REQ_SEND;
1793} 1921}
1794 1922
1795void 1923void
1796aio_group (SV *callback=&PL_sv_undef) 1924aio_group (SV *callback = &PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1925 PPCODE:
1799{ 1926{
1800 dREQ; 1927 dREQ;
1801 1928
1802 req->type = REQ_GROUP; 1929 req->type = EIO_GROUP;
1803 1930
1931 PUTBACK;
1804 req_send (req); 1932 req_submit (req);
1933 SPAGAIN;
1934
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1935 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1936}
1807 1937
1808void 1938void
1809aio_nop (SV *callback=&PL_sv_undef) 1939aio_nop (SV *callback = &PL_sv_undef)
1940 ALIAS:
1941 aio_nop = EIO_NOP
1942 aio_sync = EIO_SYNC
1810 PPCODE: 1943 PPCODE:
1811{ 1944{
1812 dREQ; 1945 dREQ;
1813 1946
1814 req->type = REQ_NOP; 1947 req->type = ix;
1815 1948
1816 REQ_SEND; 1949 REQ_SEND;
1817} 1950}
1818 1951
1819int 1952int
1820aioreq_pri (int pri = 0) 1953aioreq_pri (int pri = NO_INIT)
1821 PROTOTYPE: ;$
1822 CODE: 1954 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1955 RETVAL = next_pri;
1824 if (items > 0) 1956 if (items > 0)
1825 { 1957 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1958 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1959 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1960 next_pri = pri;
1829 } 1961 }
1830 OUTPUT: 1962 OUTPUT:
1831 RETVAL 1963 RETVAL
1832 1964
1833void 1965void
1834aioreq_nice (int nice = 0) 1966aioreq_nice (int nice = 0)
1835 CODE: 1967 CODE:
1836 nice = next_pri - nice; 1968 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1969 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1970 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1971 next_pri = nice;
1840 1972
1841void 1973void
1842flush () 1974flush ()
1843 PROTOTYPE:
1844 CODE: 1975 CODE:
1845 while (nreqs) 1976 while (eio_nreqs ())
1846 { 1977 {
1847 poll_wait (); 1978 poll_wait ();
1848 poll_cb (); 1979 poll_cb ();
1849 } 1980 }
1850 1981
1851int 1982int
1852poll() 1983poll ()
1853 PROTOTYPE:
1854 CODE: 1984 CODE:
1855 poll_wait (); 1985 poll_wait ();
1856 RETVAL = poll_cb (); 1986 RETVAL = poll_cb ();
1857 OUTPUT: 1987 OUTPUT:
1858 RETVAL 1988 RETVAL
1859 1989
1860int 1990int
1861poll_fileno() 1991poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1992 CODE:
1864 RETVAL = respipe [0]; 1993 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1994 OUTPUT:
1866 RETVAL 1995 RETVAL
1867 1996
1868int 1997int
1869poll_cb(...) 1998poll_cb (...)
1870 PROTOTYPE: 1999 PROTOTYPE:
1871 CODE: 2000 CODE:
1872 RETVAL = poll_cb (); 2001 RETVAL = poll_cb ();
1873 OUTPUT: 2002 OUTPUT:
1874 RETVAL 2003 RETVAL
1875 2004
1876void 2005void
1877poll_wait() 2006poll_wait ()
1878 PROTOTYPE:
1879 CODE: 2007 CODE:
1880 poll_wait (); 2008 poll_wait ();
1881 2009
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 2010int
1920nreqs() 2011nreqs ()
1921 PROTOTYPE:
1922 CODE: 2012 CODE:
1923 RETVAL = nreqs; 2013 RETVAL = eio_nreqs ();
1924 OUTPUT: 2014 OUTPUT:
1925 RETVAL 2015 RETVAL
1926 2016
1927int 2017int
1928nready() 2018nready ()
1929 PROTOTYPE:
1930 CODE: 2019 CODE:
1931 RETVAL = get_nready (); 2020 RETVAL = eio_nready ();
1932 OUTPUT: 2021 OUTPUT:
1933 RETVAL 2022 RETVAL
1934 2023
1935int 2024int
1936npending() 2025npending ()
1937 PROTOTYPE:
1938 CODE: 2026 CODE:
1939 RETVAL = get_npending (); 2027 RETVAL = eio_npending ();
1940 OUTPUT: 2028 OUTPUT:
1941 RETVAL 2029 RETVAL
1942 2030
1943int 2031int
1944nthreads() 2032nthreads ()
1945 PROTOTYPE:
1946 CODE: 2033 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2034 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 2035 OUTPUT:
1951 RETVAL 2036 RETVAL
1952 2037
2038int
2039fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2040 CODE:
2041 RETVAL = posix_fadvise (fh, offset, length, advice);
2042 OUTPUT:
2043 RETVAL
2044
2045IV
2046sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2047 CODE:
2048 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2049 OUTPUT:
2050 RETVAL
2051
2052void
2053mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2054 PPCODE:
2055 sv_clear_foreign (scalar);
2056{
2057 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2058 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2059 if (addr == (void *)-1)
2060 XSRETURN_NO;
2061
2062 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2063
2064 if (!(prot & PROT_WRITE))
2065 SvREADONLY_on (scalar);
2066
2067 XSRETURN_YES;
2068}
2069
2070void
2071munmap (SV *scalar)
2072 CODE:
2073 sv_clear_foreign (scalar);
2074
2075SV *
2076mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
2077 CODE:
2078{
2079 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2080 void *new;
2081
2082 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2083 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2084
2085 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2086
2087 RETVAL = &PL_sv_no;
2088
2089 if (new != (void *)-1)
2090 {
2091 RETVAL = new == (void *)mg->mg_ptr
2092 ? newSVpvn ("0 but true", 10)
2093 : &PL_sv_yes;
2094
2095 mg->mg_ptr = (char *)new;
2096 mg->mg_obj = (SV *)new_length;
2097
2098 SvPVX (scalar) = mg->mg_ptr;
2099 SvCUR_set (scalar, new_length);
2100 }
2101}
2102 OUTPUT:
2103 RETVAL
2104
2105int
2106madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2107 ALIAS:
2108 mprotect = 1
2109 CODE:
2110{
2111 STRLEN svlen;
2112 void *addr = SvPVbyte (scalar, svlen);
2113 STRLEN len = SvUV (length);
2114
2115 if (offset < 0)
2116 offset += svlen;
2117
2118 if (offset < 0 || offset > svlen)
2119 croak ("offset outside of scalar");
2120
2121 if (!SvOK (length) || len + offset > svlen)
2122 len = svlen - offset;
2123
2124 addr = (void *)(((intptr_t)addr) + offset);
2125 eio_page_align (&addr, &len);
2126
2127 switch (ix)
2128 {
2129 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2130 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2131 }
2132}
2133 OUTPUT:
2134 RETVAL
2135
2136int
2137munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2138 CODE:
2139{
2140 STRLEN svlen;
2141 void *addr = SvPVbyte (scalar, svlen);
2142 size_t len = SvUV (length);
2143
2144 if (offset < 0)
2145 offset += svlen;
2146
2147 if (offset < 0 || offset > svlen)
2148 croak ("offset outside of scalar");
2149
2150 if (!SvOK (length) || len + offset > svlen)
2151 len = svlen - offset;
2152
2153 addr = (void *)(((intptr_t)addr) + offset);
2154 eio_page_align (&addr, &len);
2155#if _POSIX_MEMLOCK_RANGE
2156 RETVAL = munlock (addr, len);
2157#else
2158 RETVAL = EIO_ENOSYS ();
2159#endif
2160}
2161 OUTPUT:
2162 RETVAL
2163
2164int
2165munlockall ()
2166 CODE:
2167#if _POSIX_MEMLOCK
2168 munlockall ();
2169#else
2170 RETVAL = EIO_ENOSYS ();
2171#endif
2172 OUTPUT:
2173 RETVAL
2174
2175int
2176splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2177 CODE:
2178{
2179#if HAVE_LINUX_SPLICE
2180 loff_t off_in_, off_out_;
2181 RETVAL = splice (
2182 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2183 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2184 length, flags
2185 );
2186#else
2187 RETVAL = EIO_ENOSYS ();
2188#endif
2189}
2190 OUTPUT:
2191 RETVAL
2192
2193int
2194tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2195 CODE:
2196#if HAVE_LINUX_SPLICE
2197 RETVAL = tee (rfh, wfh, length, flags);
2198#else
2199 RETVAL = EIO_ENOSYS ();
2200#endif
2201 OUTPUT:
2202 RETVAL
2203
2204int
2205pipesize (aio_rfd rfh, int new_size = -1)
2206 PROTOTYPE: $;$
2207 CODE:
2208#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2209 if (new_size >= 0)
2210 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2211 else
2212 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2213#else
2214 errno = ENOSYS;
2215 RETVAL = -1;
2216#endif
2217 OUTPUT:
2218 RETVAL
2219
2220void
2221pipe2 (int flags = 0)
2222 PROTOTYPE: ;$
2223 PPCODE:
2224{
2225 int fd[2];
2226 int res;
2227
2228 if (flags)
2229#if HAVE_PIPE2
2230 res = pipe2 (fd, flags);
2231#else
2232 res = (errno = ENOSYS, -1);
2233#endif
2234 else
2235 res = pipe (fd);
2236
2237 if (!res)
2238 {
2239 EXTEND (SP, 2);
2240 PUSHs (newmortalFH (fd[0], O_RDONLY));
2241 PUSHs (newmortalFH (fd[1], O_WRONLY));
2242 }
2243}
2244
2245void
2246eventfd (unsigned int initval = 0, int flags = 0)
2247 PPCODE:
2248{
2249 int fd;
2250#if HAVE_EVENTFD
2251 fd = eventfd (initval, flags);
2252#else
2253 fd = (errno = ENOSYS, -1);
2254#endif
2255
2256 XPUSHs (newmortalFH (fd, O_RDWR));
2257}
2258
2259void
2260timerfd_create (int clockid, int flags = 0)
2261 PPCODE:
2262{
2263 int fd;
2264#if HAVE_TIMERFD
2265 fd = timerfd_create (clockid, flags);
2266#else
2267 fd = (errno = ENOSYS, -1);
2268#endif
2269
2270 XPUSHs (newmortalFH (fd, O_RDWR));
2271}
2272
2273void
2274timerfd_settime (SV *fh, int flags, NV interval, NV value)
2275 PPCODE:
2276{
2277 int fd = s_fileno_croak (fh, 0);
2278#if HAVE_TIMERFD
2279 int res;
2280 struct itimerspec its, ots;
2281
2282 ts_set (&its.it_interval, interval);
2283 ts_set (&its.it_value , value);
2284 res = timerfd_settime (fd, flags, &its, &ots);
2285
2286 if (!res)
2287 {
2288 EXTEND (SP, 2);
2289 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2290 PUSHs (newSVnv (ts_get (&ots.it_value)));
2291 }
2292#else
2293 errno = ENOSYS;
2294#endif
2295}
2296
2297void
2298timerfd_gettime (SV *fh)
2299 PPCODE:
2300{
2301 int fd = s_fileno_croak (fh, 0);
2302#if HAVE_TIMERFD
2303 int res;
2304 struct itimerspec ots;
2305 res = timerfd_gettime (fd, &ots);
2306
2307 if (!res)
2308 {
2309 EXTEND (SP, 2);
2310 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2311 PUSHs (newSVnv (ts_get (&ots.it_value)));
2312 }
2313#else
2314 errno = ENOSYS;
2315#endif
2316}
2317
2318UV
2319get_fdlimit ()
2320 CODE:
2321#if HAVE_RLIMITS
2322 struct rlimit rl;
2323 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2324 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2325#endif
2326 XSRETURN_UNDEF;
2327 OUTPUT:
2328 RETVAL
2329
2330void
2331min_fdlimit (UV limit = 0x7fffffffU)
2332 CODE:
2333{
2334#if HAVE_RLIMITS
2335 struct rlimit rl;
2336 rlim_t orig_rlim_max;
2337 UV bit;
2338
2339 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2340 goto fail;
2341
2342 if (rl.rlim_cur == RLIM_INFINITY)
2343 XSRETURN_YES;
2344
2345 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2346
2347 if (rl.rlim_cur < limit)
2348 {
2349 rl.rlim_cur = limit;
2350
2351 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2352 rl.rlim_max = rl.rlim_cur;
2353 }
2354
2355 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2356 XSRETURN_YES;
2357
2358 if (errno == EPERM)
2359 {
2360 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2361 /* our limit overflows a system-wide limit */
2362 /* try an adaptive algorithm, but do not lower the hardlimit */
2363 rl.rlim_max = 0;
2364 for (bit = 0x40000000U; bit; bit >>= 1)
2365 {
2366 rl.rlim_max |= bit;
2367 rl.rlim_cur = rl.rlim_max;
2368
2369 /* nevr decrease the hard limit */
2370 if (rl.rlim_max < orig_rlim_max)
2371 break;
2372
2373 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2374 rl.rlim_max &= ~bit; /* too high, remove bit again */
2375 }
2376
2377 /* now, raise the soft limit to the max permitted */
2378 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2379 {
2380 rl.rlim_cur = rl.rlim_max;
2381 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2382 errno = EPERM;
2383 }
2384 }
2385#endif
2386 fail:
2387 XSRETURN_UNDEF;
2388}
2389
2390void _on_next_submit (SV *cb)
2391 CODE:
2392 SvREFCNT_dec (on_next_submit);
2393 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2394
1953PROTOTYPES: DISABLE 2395PROTOTYPES: DISABLE
2396
2397MODULE = IO::AIO PACKAGE = IO::AIO::WD
2398
2399BOOT:
2400{
2401 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2402 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2403}
2404
2405void
2406DESTROY (SV *self)
2407 CODE:
2408{
2409 aio_wd wd = SvAIO_WD (self);
2410#if HAVE_AT
2411 {
2412 SV *callback = &PL_sv_undef;
2413 dREQ; /* clobbers next_pri :/ */
2414 next_pri = req->pri; /* restore next_pri */
2415 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2416 req->type = EIO_WD_CLOSE;
2417 req->wd = wd;
2418 REQ_SEND;
2419 }
2420#else
2421 eio_wd_close_sync (wd);
2422#endif
2423}
1954 2424
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2425MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 2426
1957void 2427void
1958cancel (aio_req_ornot req) 2428cancel (aio_req_ornot req)
1959 CODE: 2429 CODE:
1960 req_cancel (req); 2430 eio_cancel (req);
1961 2431
1962void 2432void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2433cb (aio_req_ornot req, SV *callback = NO_INIT)
1964 CODE: 2434 PPCODE:
2435{
2436 if (GIMME_V != G_VOID)
2437 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2438
2439 if (items > 1)
2440 {
2441 SV *cb_cv = get_cb (callback);
2442
1965 SvREFCNT_dec (req->callback); 2443 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 2444 req->callback = SvREFCNT_inc (cb_cv);
2445 }
2446}
1967 2447
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2448MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 2449
1970void 2450void
1971add (aio_req grp, ...) 2451add (aio_req grp, ...)
1972 PPCODE: 2452 PPCODE:
1973{ 2453{
1974 int i; 2454 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 2455
1980 if (grp->int1 == 2) 2456 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2457 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 2458
1983 for (i = 1; i < items; ++i ) 2459 for (i = 1; i < items; ++i )
1984 { 2460 {
2461 aio_req req;
2462
1985 if (GIMME_V != G_VOID) 2463 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2464 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 2465
1988 req = SvAIO_REQ (ST (i)); 2466 req = SvAIO_REQ (ST (i));
1989 2467
1990 if (req) 2468 if (req)
1991 { 2469 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 2470 }
2004} 2471}
2005 2472
2006void 2473void
2007cancel_subs (aio_req_ornot req) 2474cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 2483 AV *av;
2017 2484
2018 grp->errorno = errno; 2485 grp->errorno = errno;
2019 2486
2020 av = newAV (); 2487 av = newAV ();
2488 av_extend (av, items - 1);
2021 2489
2022 for (i = 1; i < items; ++i ) 2490 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 2491 av_push (av, newSVsv (ST (i)));
2024 2492
2025 SvREFCNT_dec (grp->sv1); 2493 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 2500 grp->errorno = errorno;
2033 2501
2034void 2502void
2035limit (aio_req grp, int limit) 2503limit (aio_req grp, int limit)
2036 CODE: 2504 CODE:
2037 grp->int2 = limit; 2505 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 2506
2040void 2507void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 2508feed (aio_req grp, SV *callback = &PL_sv_undef)
2042 CODE: 2509 CODE:
2043{ 2510{
2044 SvREFCNT_dec (grp->sv2); 2511 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 2512 grp->sv2 = newSVsv (callback);
2513 grp->feed = aio_grp_feed;
2046 2514
2047 if (grp->int2 <= 0) 2515 if (grp->int2 <= 0)
2048 grp->int2 = 2; 2516 grp->int2 = 2;
2049 2517
2050 aio_grp_feed (grp); 2518 eio_grp_limit (grp, grp->int2);
2051} 2519}
2052 2520

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