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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.101 by root, Fri Jun 1 13:25:51 2007 UTC vs.
Revision 1.254 by root, Tue Feb 20 05:23:47 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 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
86 #include <sys/time.h>
87 #include <sys/select.h>
88 #include <unistd.h>
23#include <utime.h> 89 #include <utime.h>
90 #include <signal.h>
24 91
25#if HAVE_SENDFILE 92 #define EIO_STRUCT_STAT Stat_t
26# if __linux 93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_EVENTFD
27# include <sys/sendfile.h> 112# include <sys/eventfd.h>
28# elif __freebsd 113#endif
29# include <sys/socket.h> 114
115#if HAVE_TIMERFD
30# include <sys/uio.h> 116# include <sys/timerfd.h>
31# elif __hpux 117#endif
118
119#if HAVE_RLIMITS
120 #include <sys/time.h>
32# include <sys/socket.h> 121 #include <sys/resource.h>
33# elif __solaris /* not yet */ 122#endif
34# include <sys/sendfile.h> 123
124typedef SV SV8; /* byte-sv, used for argument-checking */
125typedef int aio_rfd; /* read file desriptor */
126typedef int aio_wfd; /* write file descriptor */
127
128static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
129
130#define EIO_REQ_MEMBERS \
131 SV *callback; \
132 SV *sv1, *sv2; \
133 SV *sv3, *sv4; \
134 STRLEN stroffset; \
135 SV *self;
136
137#define EIO_NO_WRAPPERS 1
138
139#include "libeio/eio.h"
140
141static int req_invoke (eio_req *req);
142#define EIO_FINISH(req) req_invoke (req)
143static void req_destroy (eio_req *grp);
144#define EIO_DESTROY(req) req_destroy (req)
145
146#include "libeio/eio.c"
147
148#if !HAVE_POSIX_FADVISE
149# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#if !HAVE_POSIX_MADVISE
153# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#ifndef MAP_ANONYMOUS
157# ifdef MAP_ANON
158# define MAP_ANONYMOUS MAP_ANON
35# else 159# else
36# error sendfile support requested but not available 160# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 161# endif
38#endif 162#endif
39 163
40/* number of seconds after which idle threads exit */ 164/* defines all sorts of constants to 0 unless they are already defined */
41#define IDLE_TIMEOUT 10 165/* also provides const_iv_ and const_niv_ macros for them */
166#include "def0.h"
42 167
43/* used for struct dirent, AIX doesn't provide it */ 168#ifndef makedev
44#ifndef NAME_MAX 169# define makedev(maj,min) (((maj) << 8) | (min))
45# define NAME_MAX 4096
46#endif 170#endif
47 171#ifndef major
48/* buffer size for various temporary buffers */ 172# define major(dev) ((dev) >> 8)
49#define AIO_BUFSIZE 65536
50
51/* use NV for 32 bit perls as it allows larger offsets */
52#if IVSIZE >= 8
53# define SvVAL64 SvIV
54#else
55# define SvVAL64 SvNV
56#endif 173#endif
174#ifndef minor
175# define minor(dev) ((dev) & 0xff)
176#endif
57 177
58#define dBUF \ 178#if PAGESIZE <= 0
59 char *aio_buf; \ 179# define PAGESIZE sysconf (_SC_PAGESIZE)
60 LOCK (wrklock); \ 180#endif
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 181
62 UNLOCK (wrklock); \ 182/*****************************************************************************/
63 if (!aio_buf) \ 183
184#if !_POSIX_MAPPED_FILES
185# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
186# define munmap(addr,length) EIO_ENOSYS ()
187#endif
188
189#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS ()
191#endif
192
193#define FOREIGN_MAGIC PERL_MAGIC_ext
194
195static int ecb_cold
196mmap_free (pTHX_ SV *sv, MAGIC *mg)
197{
198 int old_errno = errno;
199 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
200 errno = old_errno;
201
202 mg->mg_obj = 0; /* just in case */
203
204 SvREADONLY_off (sv);
205
206 if (SvPVX (sv) != mg->mg_ptr)
207 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
208
209 SvCUR_set (sv, 0);
210 SvPVX (sv) = 0;
211 SvOK_off (sv);
212
64 return -1; 213 return 0;
214}
65 215
66typedef SV SV8; /* byte-sv, used for argument-checking */ 216static MGVTBL mmap_vtbl = {
67 217 0, 0, 0, 0, mmap_free
68enum {
69 REQ_QUIT,
70 REQ_OPEN, REQ_CLOSE,
71 REQ_READ, REQ_WRITE,
72 REQ_READAHEAD, REQ_SENDFILE,
73 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
74 REQ_UTIME, REQ_FUTIME,
75 REQ_CHMOD, REQ_FCHMOD,
76 REQ_CHOWN, REQ_FCHOWN,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79 REQ_MKNOD, REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83}; 218};
84 219
85#define AIO_REQ_KLASS "IO::AIO::REQ" 220static int ecb_cold
86#define AIO_GRP_KLASS "IO::AIO::GRP" 221sysfree_free (pTHX_ SV *sv, MAGIC *mg)
87
88typedef struct aio_cb
89{ 222{
90 struct aio_cb *volatile next; 223 free (mg->mg_ptr);
224 mg->mg_obj = 0; /* just in case */
91 225
92 SV *callback; 226 SvREADONLY_off (sv);
93 SV *sv1, *sv2;
94 void *ptr1, *ptr2;
95 off_t offs;
96 size_t size;
97 ssize_t result;
98 double nv1, nv2;
99 227
100 STRLEN stroffset; 228 if (SvPVX (sv) != mg->mg_ptr)
101 int type; 229 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
102 int int1, int2, int3;
103 int errorno;
104 mode_t mode; /* open */
105 230
106 unsigned char flags; 231 SvCUR_set (sv, 0);
107 unsigned char pri; 232 SvPVX (sv) = 0;
233 SvOK_off (sv);
108 234
109 SV *self; /* the perl counterpart of this request, if any */ 235 return 0;
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 236}
111} aio_cb;
112 237
113enum { 238static MGVTBL sysfree_vtbl = {
114 FLAG_CANCELLED = 0x01, /* request was cancelled */ 239 0, 0, 0, 0, sysfree_free
115 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
117}; 240};
118 241
119typedef aio_cb *aio_req; 242/*****************************************************************************/
120typedef aio_cb *aio_req_ornot;
121 243
122enum { 244/* helper: set scalar to foreign ptr with custom free */
123 PRI_MIN = -4, 245static void
124 PRI_MAX = 4, 246sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
125
126 DEFAULT_PRI = 0,
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130
131#define AIO_TICKS ((1000000 + 1023) >> 10)
132
133static unsigned int max_poll_time = 0;
134static unsigned int max_poll_reqs = 0;
135
136/* calculcate time difference in ~1/AIO_TICKS of a second */
137static int tvdiff (struct timeval *tv1, struct timeval *tv2)
138{ 247{
139 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 248 sv_force_normal (sv);
140 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
141}
142 249
143static thread_t main_tid; 250 /* we store the length in mg_obj, as namlen is I32 :/ */
144static int main_sig; 251 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
145static int block_sig_level; 252 ->mg_obj = (SV *)length;
146 253
147void block_sig () 254 SvUPGRADE (sv, SVt_PV); /* nop... */
148{
149 sigset_t ss;
150 255
151 if (block_sig_level++) 256 if (SvLEN (sv))
257 Safefree (SvPVX (sv));
258
259 SvPVX (sv) = (char *)addr;
260 SvCUR_set (sv, length);
261 SvLEN_set (sv, 0);
262 SvPOK_only (sv);
263}
264
265static void
266sv_clear_foreign (SV *sv)
267{
268 /* todo: iterate over magic and only free ours, but of course */
269 /* the perl5porters will call that (correct) behaviour buggy */
270 sv_unmagic (sv, FOREIGN_MAGIC);
271}
272
273/*****************************************************************************/
274
275static void
276fiemap (eio_req *req)
277{
278 req->result = -1;
279
280#if HAVE_FIEMAP
281 /* assume some c99 */
282 struct fiemap *fiemap = 0;
283 size_t end_offset;
284 int count = req->int3;
285
286 req->flags |= EIO_FLAG_PTR1_FREE;
287
288 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
289 /* increase in 3.5kb steps */
290 if (count < 0)
291 count = 8;
292
293 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
294 errno = ENOMEM;
295 if (!fiemap)
152 return; 296 return;
153 297
154 if (!main_sig) 298 req->ptr1 = fiemap;
299
300 fiemap->fm_start = req->offs;
301 fiemap->fm_length = req->size;
302 fiemap->fm_flags = req->int2;
303 fiemap->fm_extent_count = count;
304
305 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
155 return; 306 return;
156 307
157 sigemptyset (&ss); 308 if (req->int3 >= 0 /* not autosizing */
158 sigaddset (&ss, main_sig); 309 || !fiemap->fm_mapped_extents /* no more extents */
159 pthread_sigmask (SIG_BLOCK, &ss, 0); 310 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
160} 311 goto done;
161 312
162void unblock_sig () 313 /* else we have to loop -
163{ 314 * it would be tempting (actually I tried that first) to just query the
164 sigset_t ss; 315 * number of extents needed, but linux often feels like not returning all
316 * extents, without telling us it left any out. this complicates
317 * this quite a bit.
318 */
165 319
166 if (--block_sig_level) 320 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
167 return;
168 321
169 if (!main_sig) 322 for (;;)
170 return;
171
172 sigemptyset (&ss);
173 sigaddset (&ss, main_sig);
174 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
175}
176
177static int next_pri = DEFAULT_PRI + PRI_BIAS;
178
179static unsigned int started, idle, wanted;
180
181/* worker threads management */
182static mutex_t wrklock = MUTEX_INIT;
183
184typedef struct worker {
185 /* locked by wrklock */
186 struct worker *prev, *next;
187
188 thread_t tid;
189
190 /* locked by reslock, reqlock or wrklock */
191 aio_req req; /* currently processed request */
192 void *dbuf;
193 DIR *dirp;
194} worker;
195
196static worker wrk_first = { &wrk_first, &wrk_first, 0 };
197
198static void worker_clear (worker *wrk)
199{
200 if (wrk->dirp)
201 { 323 {
202 closedir (wrk->dirp); 324 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
203 wrk->dirp = 0; 325 char scratch[3072];
204 } 326 struct fiemap *incmap = (struct fiemap *)scratch;
205 327
206 if (wrk->dbuf) 328 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
207 { 329 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
208 free (wrk->dbuf); 330 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
209 wrk->dbuf = 0; 331 incmap->fm_flags = fiemap->fm_flags;
210 } 332 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
211}
212 333
213static void worker_free (worker *wrk) 334 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
214{
215 wrk->next->prev = wrk->prev;
216 wrk->prev->next = wrk->next;
217
218 free (wrk);
219}
220
221static volatile unsigned int nreqs, nready, npending;
222static volatile unsigned int max_idle = 4;
223static volatile unsigned int max_outstanding = 0xffffffff;
224static int respipe [2];
225
226static mutex_t reslock = MUTEX_INIT;
227static mutex_t reqlock = MUTEX_INIT;
228static cond_t reqwait = COND_INIT;
229
230#if WORDACCESS_UNSAFE
231
232static unsigned int get_nready ()
233{
234 unsigned int retval;
235
236 LOCK (reqlock);
237 retval = nready;
238 UNLOCK (reqlock);
239
240 return retval;
241}
242
243static unsigned int get_npending ()
244{
245 unsigned int retval;
246
247 LOCK (reslock);
248 retval = npending;
249 UNLOCK (reslock);
250
251 return retval;
252}
253
254static unsigned int get_nthreads ()
255{
256 unsigned int retval;
257
258 LOCK (wrklock);
259 retval = started;
260 UNLOCK (wrklock);
261
262 return retval;
263}
264
265#else
266
267# define get_nready() nready
268# define get_npending() npending
269# define get_nthreads() started
270
271#endif
272
273/*
274 * a somewhat faster data structure might be nice, but
275 * with 8 priorities this actually needs <20 insns
276 * per shift, the most expensive operation.
277 */
278typedef struct {
279 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
280 int size;
281} reqq;
282
283static reqq req_queue;
284static reqq res_queue;
285
286int reqq_push (reqq *q, aio_req req)
287{
288 int pri = req->pri;
289 req->next = 0;
290
291 if (q->qe[pri])
292 {
293 q->qe[pri]->next = req;
294 q->qe[pri] = req;
295 }
296 else
297 q->qe[pri] = q->qs[pri] = req;
298
299 return q->size++;
300}
301
302aio_req reqq_shift (reqq *q)
303{
304 int pri;
305
306 if (!q->size)
307 return 0; 335 return;
308 336
309 --q->size; 337 if (!incmap->fm_mapped_extents)
338 goto done;
310 339
311 for (pri = NUM_PRI; pri--; ) 340 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
312 { 341 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
313 aio_req req = q->qs[pri]; 342 errno = ENOMEM;
314
315 if (req) 343 if (!fiemap)
344 return;
345
346 req->ptr1 = fiemap;
347
348 for (count = 0; count < incmap->fm_mapped_extents; ++count)
316 { 349 {
317 if (!(q->qs[pri] = req->next)) 350 struct fiemap_extent *e = incmap->fm_extents + count;
318 q->qe[pri] = 0;
319 351
320 return req; 352 if (e->fe_logical + e->fe_length >= end_offset)
353 goto done;
354
355 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
356
357 if (e->fe_flags & FIEMAP_EXTENT_LAST)
358 goto done;
359
321 } 360 }
322 } 361 }
323 362
324 abort (); 363done:
325} 364 req->result = 0;
326 365
327static int poll_cb (); 366#else
328static int req_invoke (aio_req req); 367 errno = ENOSYS;
368#endif
369}
370
371/*****************************************************************************/
372
373enum {
374 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
375};
376
377typedef eio_req *aio_req;
378typedef eio_req *aio_req_ornot;
379typedef eio_wd aio_wd;
380
381static SV *on_next_submit;
382static int next_pri = EIO_PRI_DEFAULT;
383static int max_outstanding;
384
385static s_epipe respipe;
386
329static void req_destroy (aio_req req); 387static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 388static void req_cancel (aio_req req);
331 389
390static void
391want_poll (void)
392{
393 /* write a dummy byte to the pipe so fh becomes ready */
394 s_epipe_signal (&respipe);
395}
396
397static void
398done_poll (void)
399{
400 /* read any signals sent by the worker threads */
401 s_epipe_drain (&respipe);
402}
403
332/* must be called at most once */ 404/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 405static SV *
406req_sv (aio_req req, HV *stash)
334{ 407{
335 if (!req->self) 408 if (!req->self)
336 { 409 {
337 req->self = (SV *)newHV (); 410 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 411 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 412 }
340 413
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 414 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
342} 415}
343 416
344static aio_req SvAIO_REQ (SV *sv) 417static SV *
418newSVaio_wd (aio_wd wd)
419{
420 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
421}
422
423static aio_req
424SvAIO_REQ (SV *sv)
345{ 425{
346 MAGIC *mg; 426 MAGIC *mg;
347 427
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 428 if (!SvROK (sv)
429 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
430 || (SvSTASH (SvRV (sv)) != aio_grp_stash
431 && SvSTASH (SvRV (sv)) != aio_req_stash
432 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 433 croak ("object of class IO::AIO::REQ expected");
350 434
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 435 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 436
353 return mg ? (aio_req)mg->mg_ptr : 0; 437 return mg ? (aio_req)mg->mg_ptr : 0;
354} 438}
355 439
440static aio_wd
441SvAIO_WD (SV *sv)
442{
443 if (!SvROK (sv)
444 || SvTYPE (SvRV (sv)) != SVt_PVMG
445 || SvSTASH (SvRV (sv)) != aio_wd_stash)
446 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
447
448 return (aio_wd)(long)SvIVX (SvRV (sv));
449}
450
451static SV *
452newmortalFH (int fd, int flags)
453{
454 if (fd < 0)
455 return &PL_sv_undef;
456
457 GV *gv = (GV *)sv_newmortal ();
458 char sym[64];
459 int symlen;
460
461 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
462 gv_init (gv, aio_stash, sym, symlen, 0);
463
464 symlen = snprintf (
465 sym,
466 sizeof (sym),
467 "%s&=%d",
468 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
469 fd
470 );
471
472 return do_open (gv, sym, symlen, 0, 0, 0, 0)
473 ? (SV *)gv : &PL_sv_undef;
474}
475
476static void
356static void aio_grp_feed (aio_req grp) 477aio_grp_feed (aio_req grp)
357{ 478{
358 block_sig (); 479 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 480 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 481 dSP;
367 482
368 ENTER; 483 ENTER;
369 SAVETMPS; 484 SAVETMPS;
370 PUSHMARK (SP); 485 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 486 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 487 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 488 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 489 SPAGAIN;
375 FREETMPS; 490 FREETMPS;
376 LEAVE; 491 LEAVE;
377 }
378
379 /* stop if no progress has been made */
380 if (old_len == grp->size)
381 {
382 SvREFCNT_dec (grp->sv2);
383 grp->sv2 = 0;
384 break;
385 }
386 } 492 }
387
388 unblock_sig ();
389} 493}
390 494
391static void aio_grp_dec (aio_req grp) 495static void
496req_submit (eio_req *req)
392{ 497{
393 --grp->size; 498 eio_submit (req);
394 499
395 /* call feeder, if applicable */ 500 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 501 {
401 block_sig (); 502 dSP;
503 SV *cb = sv_2mortal (on_next_submit);
402 504
403 if (!req_invoke (grp)) 505 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 506
410 req_destroy (grp); 507 PUSHMARK (SP);
411 unblock_sig (); 508 PUTBACK;
509 call_sv (cb, G_DISCARD | G_EVAL);
412 } 510 }
413} 511}
414 512
513static int
415static int req_invoke (aio_req req) 514req_invoke (eio_req *req)
416{ 515{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 516 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 517 SvREADONLY_off (req->sv2);
421 518
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 519 if (!EIO_CANCELLED (req) && req->callback)
423 { 520 {
521 dSP;
522 static SV *sv_result_cache; /* caches the result integer SV */
523 SV *sv_result;
524
424 ENTER; 525 ENTER;
425 SAVETMPS; 526 SAVETMPS;
426 PUSHMARK (SP); 527 PUSHMARK (SP);
427 EXTEND (SP, 1); 528 EXTEND (SP, 1);
428 529
530 /* do not recreate the result IV from scratch each time */
531 if (expect_true (sv_result_cache))
532 {
533 sv_result = sv_result_cache; sv_result_cache = 0;
534 SvIV_set (sv_result, req->result);
535 SvIOK_only (sv_result);
536 }
537 else
538 {
539 sv_result = newSViv (req->result);
540 SvREADONLY_on (sv_result);
541 }
542
429 switch (req->type) 543 switch (req->type)
430 { 544 {
545 case EIO_WD_OPEN:
546 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
547 break;
548
431 case REQ_READDIR: 549 case EIO_READDIR:
432 { 550 {
433 SV *rv = &PL_sv_undef; 551 SV *rv = &PL_sv_undef;
434 552
435 if (req->result >= 0) 553 if (req->result >= 0)
436 { 554 {
437 int i; 555 int i;
438 char *buf = req->ptr2; 556 char *names = (char *)req->ptr2;
557 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 558 AV *av = newAV ();
440 559
441 av_extend (av, req->result - 1); 560 av_extend (av, req->result - 1);
442 561
443 for (i = 0; i < req->result; ++i) 562 for (i = 0; i < req->result; ++i)
444 { 563 {
445 SV *sv = newSVpv (buf, 0); 564 if (req->int1 & EIO_READDIR_DENTS)
565 {
566 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 567
568 if (req->int1 & EIO_READDIR_CUSTOM2)
569 {
570 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
571 AV *avent = newAV ();
572
573 av_extend (avent, 2);
574
575 if (!sv_type [ent->type])
576 {
577 sv_type [ent->type] = newSViv (ent->type);
578 SvREADONLY_on (sv_type [ent->type]);
579 }
580
581 av_store (avent, 0, namesv);
582 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
583 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
584
585 av_store (av, i, newRV_noinc ((SV *)avent));
586 }
587 else
447 av_store (av, i, sv); 588 av_store (av, i, namesv);
589
590 ++ent;
591 }
592 else
593 {
594 SV *name = newSVpv (names, 0);
595 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 596 names += SvCUR (name) + 1;
597 }
449 } 598 }
450 599
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 600 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 601 }
453 602
454 PUSHs (rv); 603 PUSHs (rv);
604
605 if (req->int1 & EIO_READDIR_CUSTOM1)
606 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 607 }
456 break; 608 break;
457 609
458 case REQ_OPEN: 610 case EIO_OPEN:
611 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
612 break;
613
614 case EIO_STATVFS:
615 case EIO_FSTATVFS:
459 { 616 {
460 /* convert fd to fh */ 617 SV *rv = &PL_sv_undef;
461 SV *fh; 618
619#ifndef _WIN32
620 if (req->result >= 0)
621 {
622 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
623 HV *hv = newHV ();
624 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
625 * chooses to make it a struct.
626 */
627 unsigned long fsid = 0;
628 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
462 629
463 PUSHs (sv_2mortal (newSViv (req->result))); 630 rv = sv_2mortal (newRV_noinc ((SV *)hv));
464 PUTBACK;
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
466 SPAGAIN;
467 631
468 fh = POPs; 632 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
469 PUSHMARK (SP); 633 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
634 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
635 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
636 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
637 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
638 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
639 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
640 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
641 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
642 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
643 }
644#endif
645
470 XPUSHs (fh); 646 PUSHs (rv);
471 } 647 }
648
472 break; 649 break;
473 650
474 case REQ_GROUP: 651 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 652 req->int1 = 2; /* mark group as finished */
476 653
477 if (req->sv1) 654 if (req->sv1)
478 { 655 {
479 int i; 656 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 660 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 661 PUSHs (*av_fetch (av, i, 0));
485 } 662 }
486 break; 663 break;
487 664
488 case REQ_NOP: 665 case EIO_NOP:
489 case REQ_BUSY: 666 case EIO_BUSY:
490 break; 667 break;
491 668
492 case REQ_READLINK: 669 case EIO_READLINK:
670 case EIO_REALPATH:
493 if (req->result > 0) 671 if (req->result > 0)
672 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
673 break;
674
675 case EIO_STAT:
676 case EIO_LSTAT:
677 case EIO_FSTAT:
678 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
679
680 if (!(PL_laststatval = req->result))
681 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
682 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
683
684 PUSHs (sv_result);
685 break;
686
687 case EIO_SEEK:
688 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
689 break;
690
691 case EIO_READ:
692 {
693 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
694 *SvEND (req->sv2) = 0;
695 SvPOK_only (req->sv2);
696 SvSETMAGIC (req->sv2);
697 PUSHs (sv_result);
698 }
699 break;
700
701 case EIO_SLURP:
702 {
703 if (req->result >= 0)
704 {
705 /* if length was originally not known, we steal the malloc'ed memory */
706 if (req->flags & EIO_FLAG_PTR2_FREE)
707 {
708 req->flags &= ~EIO_FLAG_PTR2_FREE;
709 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
710 }
711 else
712 {
713 SvCUR_set (req->sv2, req->result);
714 *SvEND (req->sv2) = 0;
715 SvPOK_only (req->sv2);
716 }
717
718 SvSETMAGIC (req->sv2);
719 }
720
721 PUSHs (sv_result);
722 }
723 break;
724
725 case EIO_CUSTOM:
726 if (req->feed == fiemap)
494 { 727 {
495 SvCUR_set (req->sv2, req->result); 728#if HAVE_FIEMAP
496 *SvEND (req->sv2) = 0;
497 PUSHs (req->sv2); 729 if (!req->result)
730 {
731 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
732
733 if (fiemap->fm_extent_count)
734 {
735 AV *av = newAV ();
736 int i;
737
738 while (fiemap->fm_mapped_extents)
739 {
740 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
741 AV *ext_av = newAV ();
742
743 av_store (ext_av, 3, newSVuv (extent->fe_flags));
744 av_store (ext_av, 2, newSVval64 (extent->fe_length));
745 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
746 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
747
748 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
749 }
750
751 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
752 }
753 else
754 {
755 SvIV_set (sv_result, fiemap->fm_mapped_extents);
756 PUSHs (sv_result);
757 }
758 }
759#endif
498 } 760 }
761 else
762 PUSHs (sv_result);
499 break; 763 break;
500 764
501 case REQ_STAT: 765 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502 case REQ_LSTAT: 766 if (req->result > 0)
503 case REQ_FSTAT: 767 SvIV_set (sv_result, 0);
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 768 /* FALLTHROUGH */
505 PL_laststatval = req->result;
506 PL_statcache = *(Stat_t *)(req->ptr2);
507 PUSHs (sv_2mortal (newSViv (req->result)));
508 break;
509
510 case REQ_READ:
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
512 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result)));
514 break;
515 769
516 default: 770 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 771 PUSHs (sv_result);
518 break; 772 break;
519 } 773 }
520 774
521 errno = req->errorno; 775 errno = req->errorno;
522 776
523 PUTBACK; 777 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 778 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 779 SPAGAIN;
780
781 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
782 SvREFCNT_dec (sv_result);
783 else
784 sv_result_cache = sv_result;
526 785
527 FREETMPS; 786 FREETMPS;
528 LEAVE; 787 LEAVE;
788
789 PUTBACK;
529 } 790 }
530 791
531 if (req->grp)
532 {
533 aio_req grp = req->grp;
534
535 /* unlink request */
536 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
537 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
538
539 if (grp->grp_first == req)
540 grp->grp_first = req->grp_next;
541
542 aio_grp_dec (grp);
543 }
544
545 return !SvTRUE (ERRSV); 792 return !!SvTRUE (ERRSV);
546} 793}
547 794
795static void
548static void req_destroy (aio_req req) 796req_destroy (aio_req req)
549{ 797{
550 if (req->self) 798 if (req->self)
551 { 799 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 800 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 801 SvREFCNT_dec (req->self);
554 } 802 }
555 803
556 SvREFCNT_dec (req->sv1); 804 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 805 SvREFCNT_dec (req->sv2);
806 SvREFCNT_dec (req->sv3);
807 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 808 SvREFCNT_dec (req->callback);
559 809
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 810 free (req);
564} 811}
565 812
813static void
566static void req_cancel_subs (aio_req grp) 814req_cancel_subs (aio_req grp)
567{ 815{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 816 if (grp->type != EIO_GROUP)
571 return; 817 return;
572 818
573 SvREFCNT_dec (grp->sv2); 819 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 820 grp->sv2 = 0;
575 821
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 822 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 823}
579 824
580static void req_cancel (aio_req req) 825static void ecb_cold
826create_respipe (void)
581{ 827{
582 req->flags |= FLAG_CANCELLED; 828 if (s_epipe_renew (&respipe))
583 829 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 830}
586 831
587static void *aio_proc (void *arg); 832static void
588 833poll_wait (void)
589static void start_thread (void)
590{ 834{
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 LOCK (wrklock);
597
598 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
599 {
600 wrk->prev = &wrk_first;
601 wrk->next = wrk_first.next;
602 wrk_first.next->prev = wrk;
603 wrk_first.next = wrk;
604 ++started;
605 }
606 else
607 free (wrk);
608
609 UNLOCK (wrklock);
610}
611
612static void maybe_start_thread ()
613{
614 if (get_nthreads () >= wanted)
615 return;
616
617 /* todo: maybe use idle here, but might be less exact */
618 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
619 return;
620
621 start_thread ();
622}
623
624static void req_send (aio_req req)
625{
626 block_sig ();
627
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 COND_SIGNAL (reqwait);
634 UNLOCK (reqlock);
635
636 unblock_sig ();
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 COND_SIGNAL (reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 835 while (eio_nreqs ())
687 { 836 {
688 int size; 837 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 838
839 X_LOCK (EIO_POOL->reslock);
690 size = res_queue.size; 840 size = EIO_POOL->res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 841 X_UNLOCK (EIO_POOL->reslock);
692 842
693 if (size) 843 if (size)
694 return; 844 return;
695 845
696 maybe_start_thread (); 846 etp_maybe_start_thread (EIO_POOL);
697 847
698 FD_ZERO(&rfd); 848 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 849 }
703} 850}
704 851
705static int poll_cb () 852static int
853poll_cb (void)
706{ 854{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 block_sig ();
718
719 for (;;) 855 for (;;)
720 { 856 {
721 for (;;) 857 int res = eio_poll ();
858
859 if (res > 0)
860 croak (0);
861
862 if (!max_outstanding || max_outstanding > eio_nreqs ())
863 return res;
864
865 poll_wait ();
866 }
867}
868
869static void ecb_cold
870reinit (void)
871{
872 create_respipe ();
873
874 if (eio_init (want_poll, done_poll) < 0)
875 croak ("IO::AIO: unable to initialise eio library");
876}
877
878/*****************************************************************************/
879
880static SV *
881get_cb (SV *cb_sv)
882{
883 SvGETMAGIC (cb_sv);
884 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
885}
886
887static aio_req ecb_noinline
888dreq (SV *callback)
889{
890 SV *cb_cv;
891 aio_req req;
892 int req_pri = next_pri;
893 next_pri = EIO_PRI_DEFAULT;
894
895 cb_cv = get_cb (callback);
896
897 req = calloc (sizeof (*req), 1);
898 if (!req)
899 croak ("out of memory during eio_req allocation");
900
901 req->callback = SvREFCNT_inc (cb_cv);
902 req->pri = req_pri;
903
904 return req;
905}
906
907#define dREQ \
908 aio_req req = dreq (callback); \
909
910#define REQ_SEND \
911 PUTBACK; \
912 req_submit (req); \
913 SPAGAIN; \
914 \
915 if (GIMME_V != G_VOID) \
916 XPUSHs (req_sv (req, aio_req_stash));
917
918ecb_inline void
919req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
920{
921 if (expect_false (SvROK (path)))
922 {
923 SV *rv = SvRV (path);
924 SV *wdob;
925
926 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 927 {
723 maybe_start_thread (); 928 path = AvARRAY (rv)[1];
929 wdob = AvARRAY (rv)[0];
724 930
725 LOCK (reslock); 931 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 932 {
730 --npending; 933 *wd = SvAIO_WD (wdob);
731 934 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
732 if (!res_queue.size)
733 {
734 /* read any signals sent by the worker threads */
735 char buf [4];
736 while (read (respipe [0], buf, 4) == 4)
737 ;
738 }
739 }
740
741 UNLOCK (reslock);
742
743 if (!req)
744 break;
745
746 --nreqs;
747
748 if (req->type == REQ_GROUP && req->size)
749 {
750 req->int1 = 1; /* mark request as delayed */
751 continue;
752 } 935 }
753 else 936 else
754 { 937 *wd = EIO_INVALID_WD;
755 if (!req_invoke (req))
756 {
757 req_destroy (req);
758 unblock_sig ();
759 croak (0);
760 }
761
762 count++;
763 }
764
765 req_destroy (req);
766
767 if (maxreqs && !--maxreqs)
768 break;
769
770 if (max_poll_time)
771 {
772 gettimeofday (&tv_now, 0);
773
774 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
775 break;
776 }
777 } 938 }
939 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
940 {
941 *wd = (aio_wd)(long)SvIVX (rv);
942 *wdsv = SvREFCNT_inc_NN (rv);
943 *ptr = ".";
944 return; /* path set to "." */
945 }
946 else
947 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
948 }
778 949
779 if (nreqs <= max_outstanding) 950 *pathsv = newSVsv (path);
951 *ptr = SvPVbyte_nolen (*pathsv);
952}
953
954static void ecb_noinline
955req_set_path1 (aio_req req, SV *path)
956{
957 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
958}
959
960static void ecb_noinline
961req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
962{
963 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
964
965 switch (SvTYPE (rv))
966 {
967 case SVt_PVIO:
968 case SVt_PVLV:
969 case SVt_PVGV:
970 req->type = type_fh;
971 req->sv1 = newSVsv (fh_or_path);
972 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 973 break;
781 974
782 poll_wait (); 975 default:
783 976 req->type = type_path;
784 ++maxreqs; 977 req_set_path1 (req, fh_or_path);
978 break;
785 } 979 }
786
787 unblock_sig ();
788 return count;
789}
790
791static void create_pipe ()
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795
796 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
797 croak ("cannot set result pipe to nonblocking mode");
798
799 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
800 croak ("cannot set result pipe to nonblocking mode");
801} 980}
802 981
803/*****************************************************************************/ 982/*****************************************************************************/
804/* work around various missing functions */
805 983
806#if !HAVE_PREADWRITE 984static void
807# define pread aio_pread 985ts_set (struct timespec *ts, NV value)
808# define pwrite aio_pwrite
809
810/*
811 * make our pread/pwrite safe against themselves, but not against
812 * normal read/write by using a mutex. slows down execution a lot,
813 * but that's your problem, not mine.
814 */
815static mutex_t preadwritelock = MUTEX_INIT;
816
817static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
818{ 986{
819 ssize_t res; 987 ts->tv_sec = value;
820 off_t ooffset; 988 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
821
822 LOCK (preadwritelock);
823 ooffset = lseek (fd, 0, SEEK_CUR);
824 lseek (fd, offset, SEEK_SET);
825 res = read (fd, buf, count);
826 lseek (fd, ooffset, SEEK_SET);
827 UNLOCK (preadwritelock);
828
829 return res;
830} 989}
831 990
832static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 991static NV
992ts_get (const struct timespec *ts)
833{ 993{
834 ssize_t res; 994 return ts->tv_sec + ts->tv_nsec * 1e-9;
835 off_t ooffset;
836
837 LOCK (preadwritelock);
838 ooffset = lseek (fd, 0, SEEK_CUR);
839 lseek (fd, offset, SEEK_SET);
840 res = write (fd, buf, count);
841 lseek (fd, offset, SEEK_SET);
842 UNLOCK (preadwritelock);
843
844 return res;
845}
846#endif
847
848#ifndef HAVE_FUTIMES
849
850# define utimes(path,times) aio_utimes (path, times)
851# define futimes(fd,times) aio_futimes (fd, times)
852
853int aio_utimes (const char *filename, const struct timeval times[2])
854{
855 if (times)
856 {
857 struct utimbuf buf;
858
859 buf.actime = times[0].tv_sec;
860 buf.modtime = times[1].tv_sec;
861
862 return utime (filename, &buf);
863 }
864 else
865 return utime (filename, 0);
866}
867
868int aio_futimes (int fd, const struct timeval tv[2])
869{
870 errno = ENOSYS;
871 return -1;
872}
873
874#endif
875
876#if !HAVE_FDATASYNC
877# define fdatasync fsync
878#endif
879
880#if !HAVE_READAHEAD
881# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
882
883static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
884{
885 dBUF;
886
887 while (count > 0)
888 {
889 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
890
891 pread (fd, aio_buf, len, offset);
892 offset += len;
893 count -= len;
894 }
895
896 errno = 0;
897}
898
899#endif
900
901#if !HAVE_READDIR_R
902# define readdir_r aio_readdir_r
903
904static mutex_t readdirlock = MUTEX_INIT;
905
906static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
907{
908 struct dirent *e;
909 int errorno;
910
911 LOCK (readdirlock);
912
913 e = readdir (dirp);
914 errorno = errno;
915
916 if (e)
917 {
918 *res = ent;
919 strcpy (ent->d_name, e->d_name);
920 }
921 else
922 *res = 0;
923
924 UNLOCK (readdirlock);
925
926 errno = errorno;
927 return e ? 0 : -1;
928}
929#endif
930
931/* sendfile always needs emulation */
932static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
933{
934 ssize_t res;
935
936 if (!count)
937 return 0;
938
939#if HAVE_SENDFILE
940# if __linux
941 res = sendfile (ofd, ifd, &offset, count);
942
943# elif __freebsd
944 /*
945 * Of course, the freebsd sendfile is a dire hack with no thoughts
946 * wasted on making it similar to other I/O functions.
947 */
948 {
949 off_t sbytes;
950 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
951
952 if (res < 0 && sbytes)
953 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
954 res = sbytes;
955 }
956
957# elif __hpux
958 res = sendfile (ofd, ifd, offset, count, 0, 0);
959
960# elif __solaris
961 {
962 struct sendfilevec vec;
963 size_t sbytes;
964
965 vec.sfv_fd = ifd;
966 vec.sfv_flag = 0;
967 vec.sfv_off = offset;
968 vec.sfv_len = count;
969
970 res = sendfilev (ofd, &vec, 1, &sbytes);
971
972 if (res < 0 && sbytes)
973 res = sbytes;
974 }
975
976# endif
977#else
978 res = -1;
979 errno = ENOSYS;
980#endif
981
982 if (res < 0
983 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
984#if __solaris
985 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
986#endif
987 )
988 )
989 {
990 /* emulate sendfile. this is a major pain in the ass */
991 dBUF;
992
993 res = 0;
994
995 while (count)
996 {
997 ssize_t cnt;
998
999 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1000
1001 if (cnt <= 0)
1002 {
1003 if (cnt && !res) res = -1;
1004 break;
1005 }
1006
1007 cnt = write (ofd, aio_buf, cnt);
1008
1009 if (cnt <= 0)
1010 {
1011 if (cnt && !res) res = -1;
1012 break;
1013 }
1014
1015 offset += cnt;
1016 res += cnt;
1017 count -= cnt;
1018 }
1019 }
1020
1021 return res;
1022}
1023
1024/* read a full directory */
1025static void scandir_ (aio_req req, worker *self)
1026{
1027 DIR *dirp;
1028 union
1029 {
1030 struct dirent d;
1031 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1032 } *u;
1033 struct dirent *entp;
1034 char *name, *names;
1035 int memlen = 4096;
1036 int memofs = 0;
1037 int res = 0;
1038 int errorno;
1039
1040 LOCK (wrklock);
1041 self->dirp = dirp = opendir (req->ptr1);
1042 self->dbuf = u = malloc (sizeof (*u));
1043 req->flags |= FLAG_PTR2_FREE;
1044 req->ptr2 = names = malloc (memlen);
1045 UNLOCK (wrklock);
1046
1047 if (dirp && u && names)
1048 for (;;)
1049 {
1050 errno = 0;
1051 readdir_r (dirp, &u->d, &entp);
1052
1053 if (!entp)
1054 break;
1055
1056 name = entp->d_name;
1057
1058 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1059 {
1060 int len = strlen (name) + 1;
1061
1062 res++;
1063
1064 while (memofs + len > memlen)
1065 {
1066 memlen *= 2;
1067 LOCK (wrklock);
1068 req->ptr2 = names = realloc (names, memlen);
1069 UNLOCK (wrklock);
1070
1071 if (!names)
1072 break;
1073 }
1074
1075 memcpy (names + memofs, name, len);
1076 memofs += len;
1077 }
1078 }
1079
1080 if (errno)
1081 res = -1;
1082
1083 req->result = res;
1084} 995}
1085 996
1086/*****************************************************************************/ 997/*****************************************************************************/
1087 998
1088static void *aio_proc (void *thr_arg) 999XS(boot_IO__AIO) ecb_cold;
1089{
1090 aio_req req;
1091 struct timespec ts;
1092 worker *self = (worker *)thr_arg;
1093 1000
1094 /* try to distribute timeouts somewhat evenly */
1095 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1096 * (1000000000UL / 1024UL);
1097
1098 for (;;)
1099 {
1100 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1101
1102 LOCK (reqlock);
1103
1104 for (;;)
1105 {
1106 self->req = req = reqq_shift (&req_queue);
1107
1108 if (req)
1109 break;
1110
1111 ++idle;
1112
1113 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1114 == ETIMEDOUT)
1115 {
1116 if (idle > max_idle)
1117 {
1118 --idle;
1119 UNLOCK (reqlock);
1120 LOCK (wrklock);
1121 --started;
1122 UNLOCK (wrklock);
1123 goto quit;
1124 }
1125
1126 /* we are allowed to idle, so do so without any timeout */
1127 COND_WAIT (reqwait, reqlock);
1128 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1129 }
1130
1131 --idle;
1132 }
1133
1134 --nready;
1135
1136 UNLOCK (reqlock);
1137
1138 errno = 0; /* strictly unnecessary */
1139
1140 if (!(req->flags & FLAG_CANCELLED))
1141 switch (req->type)
1142 {
1143 case REQ_READ: req->result = req->offs >= 0
1144 ? pread (req->int1, req->ptr1, req->size, req->offs)
1145 : read (req->int1, req->ptr1, req->size); break;
1146 case REQ_WRITE: req->result = req->offs >= 0
1147 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1148 : write (req->int1, req->ptr1, req->size); break;
1149
1150 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1151 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1152
1153 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1154 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1155 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1156
1157 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1158 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1159 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1160 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1161
1162 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1163 case REQ_CLOSE: req->result = close (req->int1); break;
1164 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1165 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1166 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1167 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1168 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1169 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1170 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1171 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1172
1173 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1174 case REQ_FSYNC: req->result = fsync (req->int1); break;
1175 case REQ_READDIR: scandir_ (req, self); break;
1176
1177 case REQ_BUSY:
1178 {
1179 struct timeval tv;
1180
1181 tv.tv_sec = req->nv1;
1182 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1183
1184 req->result = select (0, 0, 0, 0, &tv);
1185 }
1186
1187 case REQ_UTIME:
1188 case REQ_FUTIME:
1189 {
1190 struct timeval tv[2];
1191 struct timeval *times;
1192
1193 if (req->nv1 != -1. || req->nv2 != -1.)
1194 {
1195 tv[0].tv_sec = req->nv1;
1196 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1197 tv[1].tv_sec = req->nv2;
1198 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1199
1200 times = tv;
1201 }
1202 else
1203 times = 0;
1204
1205
1206 req->result = req->type == REQ_FUTIME
1207 ? futimes (req->int1, times)
1208 : utimes (req->ptr1, times);
1209 }
1210
1211 case REQ_GROUP:
1212 case REQ_NOP:
1213 break;
1214
1215 case REQ_QUIT:
1216 goto quit;
1217
1218 default:
1219 req->result = -1;
1220 break;
1221 }
1222
1223 req->errorno = errno;
1224
1225 LOCK (reslock);
1226
1227 ++npending;
1228
1229 if (!reqq_push (&res_queue, req))
1230 {
1231 /* write a dummy byte to the pipe so fh becomes ready */
1232 write (respipe [1], &respipe, 1);
1233
1234 /* optionally signal the main thread asynchronously */
1235 if (main_sig)
1236 pthread_kill (main_tid, main_sig);
1237 }
1238
1239 self->req = 0;
1240 worker_clear (self);
1241
1242 UNLOCK (reslock);
1243 }
1244
1245quit:
1246 LOCK (wrklock);
1247 worker_free (self);
1248 UNLOCK (wrklock);
1249
1250 return 0;
1251}
1252
1253/*****************************************************************************/
1254
1255static void atfork_prepare (void)
1256{
1257 LOCK (wrklock);
1258 LOCK (reqlock);
1259 LOCK (reslock);
1260#if !HAVE_PREADWRITE
1261 LOCK (preadwritelock);
1262#endif
1263#if !HAVE_READDIR_R
1264 LOCK (readdirlock);
1265#endif
1266}
1267
1268static void atfork_parent (void)
1269{
1270#if !HAVE_READDIR_R
1271 UNLOCK (readdirlock);
1272#endif
1273#if !HAVE_PREADWRITE
1274 UNLOCK (preadwritelock);
1275#endif
1276 UNLOCK (reslock);
1277 UNLOCK (reqlock);
1278 UNLOCK (wrklock);
1279}
1280
1281static void atfork_child (void)
1282{
1283 aio_req prv;
1284
1285 while (prv = reqq_shift (&req_queue))
1286 req_destroy (prv);
1287
1288 while (prv = reqq_shift (&res_queue))
1289 req_destroy (prv);
1290
1291 while (wrk_first.next != &wrk_first)
1292 {
1293 worker *wrk = wrk_first.next;
1294
1295 if (wrk->req)
1296 req_destroy (wrk->req);
1297
1298 worker_clear (wrk);
1299 worker_free (wrk);
1300 }
1301
1302 started = 0;
1303 idle = 0;
1304 nreqs = 0;
1305 nready = 0;
1306 npending = 0;
1307
1308 close (respipe [0]);
1309 close (respipe [1]);
1310 create_pipe ();
1311
1312 atfork_parent ();
1313}
1314
1315#define dREQ \
1316 aio_req req; \
1317 int req_pri = next_pri; \
1318 next_pri = DEFAULT_PRI + PRI_BIAS; \
1319 \
1320 if (SvOK (callback) && !SvROK (callback)) \
1321 croak ("callback must be undef or of reference type"); \
1322 \
1323 Newz (0, req, 1, aio_cb); \
1324 if (!req) \
1325 croak ("out of memory during aio_req allocation"); \
1326 \
1327 req->callback = newSVsv (callback); \
1328 req->pri = req_pri
1329
1330#define REQ_SEND \
1331 req_send (req); \
1332 \
1333 if (GIMME_V != G_VOID) \
1334 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1335
1336MODULE = IO::AIO PACKAGE = IO::AIO 1001MODULE = IO::AIO PACKAGE = IO::AIO
1337 1002
1338PROTOTYPES: ENABLE 1003PROTOTYPES: ENABLE
1339 1004
1340BOOT: 1005BOOT:
1341{ 1006{
1007 static const struct {
1008 const char *name;
1009 IV iv;
1010 } *civ, const_iv[] = {
1011# define const_niv(name, value) { # name, (IV) value },
1012# define const_iv(name) { # name, (IV) name },
1013# define const_eio(name) { # name, (IV) EIO_ ## name },
1014
1015 /* you have to re-run ./gendef0 after adding/removing any constants here */
1016 /* the first block can be undef if missing */
1017 const_iv (ENOSYS)
1018 const_iv (EXDEV)
1019 const_iv (EBADR)
1020
1021 /* for lseek */
1022 const_iv (SEEK_DATA)
1023 const_iv (SEEK_HOLE)
1024
1025 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1026 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1027 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1028 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1029 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1030 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1031
1032 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1033 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1034 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1035 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1036 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1037
1038 /* the second block will be 0 when missing */
1039 const_iv (O_RDONLY)
1040 const_iv (O_WRONLY)
1041 const_iv (O_RDWR)
1042 const_iv (O_CREAT)
1043 const_iv (O_TRUNC)
1044 const_iv (O_EXCL)
1045 const_iv (O_APPEND)
1046
1047 const_iv (O_ASYNC)
1048 const_iv (O_DIRECT)
1049 const_iv (O_NOATIME)
1050
1051 const_iv (O_CLOEXEC)
1052 const_iv (O_NOCTTY)
1053 const_iv (O_NOFOLLOW)
1054 const_iv (O_NONBLOCK)
1055 const_iv (O_EXEC)
1056 const_iv (O_SEARCH)
1057 const_iv (O_DIRECTORY)
1058 const_iv (O_DSYNC)
1059 const_iv (O_RSYNC)
1060 const_iv (O_SYNC)
1061 const_iv (O_PATH)
1062 const_iv (O_TMPFILE)
1063 const_iv (O_TTY_INIT)
1064
1065 const_iv (S_IFIFO)
1066 const_iv (S_IFCHR)
1067 const_iv (S_IFBLK)
1068 const_iv (S_IFLNK)
1069 const_iv (S_IFREG)
1070 const_iv (S_IFDIR)
1071 const_iv (S_IFWHT)
1072 const_iv (S_IFSOCK)
1073 const_iv (S_IFMT)
1074
1075 const_iv (ST_RDONLY)
1076 const_iv (ST_NOSUID)
1077 const_iv (ST_NODEV)
1078 const_iv (ST_NOEXEC)
1079 const_iv (ST_SYNCHRONOUS)
1080 const_iv (ST_MANDLOCK)
1081 const_iv (ST_WRITE)
1082 const_iv (ST_APPEND)
1083 const_iv (ST_IMMUTABLE)
1084 const_iv (ST_NOATIME)
1085 const_iv (ST_NODIRATIME)
1086 const_iv (ST_RELATIME)
1087
1088 const_iv (PROT_NONE)
1089 const_iv (PROT_EXEC)
1090 const_iv (PROT_READ)
1091 const_iv (PROT_WRITE)
1092
1093 const_iv (MAP_PRIVATE)
1094 const_iv (MAP_SHARED)
1095 const_iv (MAP_FIXED)
1096 const_iv (MAP_ANONYMOUS)
1097
1098 /* linuxish */
1099 const_iv (MAP_LOCKED)
1100 const_iv (MAP_NORESERVE)
1101 const_iv (MAP_POPULATE)
1102 const_iv (MAP_NONBLOCK)
1103 const_iv (MAP_GROWSDOWN)
1104 const_iv (MAP_32BIT)
1105 const_iv (MAP_HUGETLB)
1106 const_iv (MAP_STACK)
1107
1108 const_iv (F_DUPFD_CLOEXEC)
1109
1110 const_iv (F_OFD_GETLK)
1111 const_iv (F_OFD_SETLK)
1112 const_iv (F_OFD_GETLKW)
1113
1114 const_iv (FIFREEZE)
1115 const_iv (FITHAW)
1116 const_iv (FITRIM)
1117 const_iv (FICLONE)
1118 const_iv (FICLONERANGE)
1119 const_iv (FIDEDUPERANGE)
1120
1121 const_iv (FS_IOC_GETFLAGS)
1122 const_iv (FS_IOC_SETFLAGS)
1123 const_iv (FS_IOC_GETVERSION)
1124 const_iv (FS_IOC_SETVERSION)
1125 const_iv (FS_IOC_FIEMAP)
1126 const_iv (FS_IOC_FSGETXATTR)
1127 const_iv (FS_IOC_FSSETXATTR)
1128 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1129 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1130 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1131
1132 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1133
1134 const_iv (FS_SECRM_FL)
1135 const_iv (FS_UNRM_FL)
1136 const_iv (FS_COMPR_FL)
1137 const_iv (FS_SYNC_FL)
1138 const_iv (FS_IMMUTABLE_FL)
1139 const_iv (FS_APPEND_FL)
1140 const_iv (FS_NODUMP_FL)
1141 const_iv (FS_NOATIME_FL)
1142 const_iv (FS_DIRTY_FL)
1143 const_iv (FS_COMPRBLK_FL)
1144 const_iv (FS_NOCOMP_FL)
1145 const_iv (FS_ENCRYPT_FL)
1146 const_iv (FS_BTREE_FL)
1147 const_iv (FS_INDEX_FL)
1148 const_iv (FS_JOURNAL_DATA_FL)
1149 const_iv (FS_NOTAIL_FL)
1150 const_iv (FS_DIRSYNC_FL)
1151 const_iv (FS_TOPDIR_FL)
1152 const_iv (FS_FL_USER_MODIFIABLE)
1153
1154 const_iv (FS_XFLAG_REALTIME)
1155 const_iv (FS_XFLAG_PREALLOC)
1156 const_iv (FS_XFLAG_IMMUTABLE)
1157 const_iv (FS_XFLAG_APPEND)
1158 const_iv (FS_XFLAG_SYNC)
1159 const_iv (FS_XFLAG_NOATIME)
1160 const_iv (FS_XFLAG_NODUMP)
1161 const_iv (FS_XFLAG_RTINHERIT)
1162 const_iv (FS_XFLAG_PROJINHERIT)
1163 const_iv (FS_XFLAG_NOSYMLINKS)
1164 const_iv (FS_XFLAG_EXTSIZE)
1165 const_iv (FS_XFLAG_EXTSZINHERIT)
1166 const_iv (FS_XFLAG_NODEFRAG)
1167 const_iv (FS_XFLAG_FILESTREAM)
1168 const_iv (FS_XFLAG_DAX)
1169 const_iv (FS_XFLAG_HASATTR)
1170
1171 const_iv (FIEMAP_FLAG_SYNC)
1172 const_iv (FIEMAP_FLAG_XATTR)
1173 const_iv (FIEMAP_FLAGS_COMPAT)
1174 const_iv (FIEMAP_EXTENT_LAST)
1175 const_iv (FIEMAP_EXTENT_UNKNOWN)
1176 const_iv (FIEMAP_EXTENT_DELALLOC)
1177 const_iv (FIEMAP_EXTENT_ENCODED)
1178 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1179 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1180 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1181 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1182 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1183 const_iv (FIEMAP_EXTENT_MERGED)
1184 const_iv (FIEMAP_EXTENT_SHARED)
1185
1186 const_iv (SPLICE_F_MOVE)
1187 const_iv (SPLICE_F_NONBLOCK)
1188 const_iv (SPLICE_F_MORE)
1189 const_iv (SPLICE_F_GIFT)
1190
1191 const_iv (EFD_CLOEXEC)
1192 const_iv (EFD_NONBLOCK)
1193 const_iv (EFD_SEMAPHORE)
1194
1195 const_iv (CLOCK_REALTIME)
1196 const_iv (CLOCK_MONOTONIC)
1197 const_iv (CLOCK_BOOTTIME)
1198 const_iv (CLOCK_REALTIME_ALARM)
1199 const_iv (CLOCK_BOOTTIME_ALARM)
1200
1201 const_iv (TFD_NONBLOCK)
1202 const_iv (TFD_CLOEXEC)
1203
1204 const_iv (TFD_TIMER_ABSTIME)
1205 const_iv (TFD_TIMER_CANCEL_ON_SET)
1206
1207 /* these are libeio constants, and are independent of gendef0 */
1208 const_eio (SEEK_SET)
1209 const_eio (SEEK_CUR)
1210 const_eio (SEEK_END)
1211
1212 const_eio (MCL_FUTURE)
1213 const_eio (MCL_CURRENT)
1214
1215 const_eio (MS_ASYNC)
1216 const_eio (MS_INVALIDATE)
1217 const_eio (MS_SYNC)
1218
1219 const_eio (MT_MODIFY)
1220
1221 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1222 const_eio (SYNC_FILE_RANGE_WRITE)
1223 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1224
1225 const_eio (FALLOC_FL_KEEP_SIZE)
1226 const_eio (FALLOC_FL_PUNCH_HOLE)
1227 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1228 const_eio (FALLOC_FL_ZERO_RANGE)
1229 const_eio (FALLOC_FL_INSERT_RANGE)
1230 const_eio (FALLOC_FL_UNSHARE_RANGE)
1231
1232 const_eio (RENAME_NOREPLACE)
1233 const_eio (RENAME_EXCHANGE)
1234 const_eio (RENAME_WHITEOUT)
1235
1236 const_eio (READDIR_DENTS)
1237 const_eio (READDIR_DIRS_FIRST)
1238 const_eio (READDIR_STAT_ORDER)
1239 const_eio (READDIR_FOUND_UNKNOWN)
1240
1241 const_eio (DT_UNKNOWN)
1242 const_eio (DT_FIFO)
1243 const_eio (DT_CHR)
1244 const_eio (DT_DIR)
1245 const_eio (DT_BLK)
1246 const_eio (DT_REG)
1247 const_eio (DT_LNK)
1248 const_eio (DT_SOCK)
1249 const_eio (DT_WHT)
1250 };
1251
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1252 aio_stash = gv_stashpv ("IO::AIO" , 1);
1253 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1254 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1255 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1256
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1257 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1258 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1346 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1347 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1348 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1349 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1350 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1351 1259
1352 create_pipe (); 1260 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1261
1262 reinit ();
1263}
1264
1356void 1265void
1266reinit ()
1267 PROTOTYPE:
1268
1269void
1357max_poll_reqs (int nreqs) 1270max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1271 PROTOTYPE: $
1359 CODE: 1272 CODE:
1360 max_poll_reqs = nreqs; 1273 eio_set_max_poll_reqs (nreqs);
1361 1274
1362void 1275void
1363max_poll_time (double nseconds) 1276max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1277 PROTOTYPE: $
1365 CODE: 1278 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1279 eio_set_max_poll_time (nseconds);
1367 1280
1368void 1281void
1369min_parallel (int nthreads) 1282min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1283 PROTOTYPE: $
1379 CODE: 1284 CODE:
1380 set_max_idle (nthreads); 1285 eio_set_min_parallel (nthreads);
1381 1286
1382int 1287void
1383max_outstanding (int maxreqs) 1288max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1289 PROTOTYPE: $
1385 CODE: 1290 CODE:
1386 RETVAL = max_outstanding; 1291 eio_set_max_parallel (nthreads);
1292
1293void
1294max_idle (unsigned int nthreads)
1295 PROTOTYPE: $
1296 CODE:
1297 eio_set_max_idle (nthreads);
1298
1299void
1300idle_timeout (unsigned int seconds)
1301 PROTOTYPE: $
1302 CODE:
1303 eio_set_idle_timeout (seconds);
1304
1305void
1306max_outstanding (unsigned int maxreqs)
1307 PROTOTYPE: $
1308 CODE:
1387 max_outstanding = maxreqs; 1309 max_outstanding = maxreqs;
1388 OUTPUT:
1389 RETVAL
1390 1310
1391void 1311void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1312aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1313 PPCODE:
1395{ 1314{
1396 dREQ; 1315 dREQ;
1397 1316
1317 req->type = EIO_WD_OPEN;
1318 req_set_path1 (req, pathname);
1319
1320 REQ_SEND;
1321}
1322
1323void
1324aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1325 PPCODE:
1326{
1327 dREQ;
1328
1398 req->type = REQ_OPEN; 1329 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1330 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1331 req->int1 = flags;
1402 req->mode = mode; 1332 req->int2 = mode;
1403 1333
1404 REQ_SEND; 1334 REQ_SEND;
1405} 1335}
1406 1336
1407void 1337void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1338aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1339 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1340 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1341 aio_fdatasync = EIO_FDATASYNC
1342 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1343 PPCODE:
1415{ 1344{
1345 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1346 dREQ;
1417 1347
1418 req->type = ix; 1348 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1349 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1350 req->int1 = fd;
1421 1351
1422 REQ_SEND (req); 1352 REQ_SEND;
1423} 1353}
1424 1354
1425void 1355void
1356aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1357 PPCODE:
1358{
1359 int fd = s_fileno_croak (fh, 0);
1360 dREQ;
1361
1362 req->type = EIO_SYNC_FILE_RANGE;
1363 req->sv1 = newSVsv (fh);
1364 req->int1 = fd;
1365 req->offs = offset;
1366 req->size = nbytes;
1367 req->int2 = flags;
1368
1369 REQ_SEND;
1370}
1371
1372void
1373aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1374 PPCODE:
1375{
1376 int fd = s_fileno_croak (fh, 0);
1377 dREQ;
1378
1379 req->type = EIO_FALLOCATE;
1380 req->sv1 = newSVsv (fh);
1381 req->int1 = fd;
1382 req->int2 = mode;
1383 req->offs = offset;
1384 req->size = len;
1385
1386 REQ_SEND;
1387}
1388
1389void
1390aio_close (SV *fh, SV *callback = &PL_sv_undef)
1391 PPCODE:
1392{
1393 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 if (expect_false (close_fd < 0))
1398 {
1399 int pipefd [2];
1400
1401 if (
1402#ifdef _WIN32
1403 _pipe (pipefd, 1, _O_BINARY) < 0
1404#else
1405 pipe (pipefd) < 0
1406 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1407#endif
1408 || close (pipefd [1]) < 0
1409 )
1410 abort (); /*D*/
1411
1412 close_fd = pipefd [0];
1413 }
1414
1415 req->type = EIO_DUP2;
1416 req->int1 = close_fd;
1417 req->sv2 = newSVsv (fh);
1418 req->int2 = fd;
1419
1420 REQ_SEND;
1421}
1422
1423void
1424aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1425 PPCODE:
1426{
1427 int fd = s_fileno_croak (fh, 0);
1428 dREQ;
1429
1430 req->type = EIO_SEEK;
1431 req->sv1 = newSVsv (fh);
1432 req->int1 = fd;
1433 req->offs = SvVAL64 (offset);
1434 req->int2 = whence;
1435
1436 REQ_SEND;
1437}
1438
1439void
1426aio_read (SV *fh, SV *offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1440aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1427 ALIAS: 1441 ALIAS:
1428 aio_read = REQ_READ 1442 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1443 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1444 PPCODE:
1432{ 1445{
1433 STRLEN svlen; 1446 STRLEN svlen;
1447 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1448 char *svptr = SvPVbyte (data, svlen);
1435 1449 UV len = SvUV (length);
1436 SvUPGRADE (data, SVt_PV);
1437 SvPOK_on (data);
1438 1450
1439 if (dataoffset < 0) 1451 if (dataoffset < 0)
1440 dataoffset += svlen; 1452 dataoffset += svlen;
1441 1453
1442 if (dataoffset < 0 || dataoffset > svlen) 1454 if (dataoffset < 0 || dataoffset > svlen)
1443 croak ("data offset outside of string"); 1455 croak ("dataoffset outside of data scalar");
1444 1456
1445 if (ix == REQ_WRITE) 1457 if (ix == EIO_WRITE)
1446 { 1458 {
1447 /* write: check length and adjust. */ 1459 /* write: check length and adjust. */
1448 if (length < 0 || length + dataoffset > svlen) 1460 if (!SvOK (length) || len + dataoffset > svlen)
1449 length = svlen - dataoffset; 1461 len = svlen - dataoffset;
1450 } 1462 }
1451 else 1463 else
1452 { 1464 {
1453 /* read: grow scalar as necessary */ 1465 /* read: check type and grow scalar as necessary */
1466 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1454 svptr = SvGROW (data, length + dataoffset + 1); 1467 svptr = sv_grow (data, len + dataoffset + 1);
1468 else if (SvCUR (data) < len + dataoffset)
1469 croak ("length + dataoffset outside of scalar, and cannot grow");
1455 } 1470 }
1456
1457 if (length < 0)
1458 croak ("length must not be negative");
1459 1471
1460 { 1472 {
1461 dREQ; 1473 dREQ;
1462 1474
1463 req->type = ix; 1475 req->type = ix;
1464 req->sv1 = newSVsv (fh); 1476 req->sv1 = newSVsv (fh);
1465 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1477 req->int1 = fd;
1466 : IoOFP (sv_2io (fh)));
1467 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1478 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1468 req->size = length; 1479 req->size = len;
1469 req->sv2 = SvREFCNT_inc (data); 1480 req->sv2 = SvREFCNT_inc (data);
1470 req->ptr1 = (char *)svptr + dataoffset; 1481 req->ptr2 = (char *)svptr + dataoffset;
1471 req->stroffset = dataoffset; 1482 req->stroffset = dataoffset;
1472 1483
1473 if (!SvREADONLY (data)) 1484 if (!SvREADONLY (data))
1474 { 1485 {
1475 SvREADONLY_on (data); 1486 SvREADONLY_on (data);
… …
1479 REQ_SEND; 1490 REQ_SEND;
1480 } 1491 }
1481} 1492}
1482 1493
1483void 1494void
1484aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1495aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1485 PROTOTYPE: $$;$ 1496 ALIAS:
1497 aio_ioctl = EIO_IOCTL
1498 aio_fcntl = EIO_FCNTL
1486 PPCODE: 1499 PPCODE:
1487{ 1500{
1488 SV *data; 1501 int fd = s_fileno_croak (fh, 0);
1489 dREQ; 1502 char *svptr;
1490 1503
1491 data = newSV (NAME_MAX); 1504 if (SvPOK (arg) || !SvNIOK (arg))
1492 SvPOK_on (data);
1493
1494 req->type = REQ_READLINK;
1495 req->sv1 = newSVsv (path);
1496 req->ptr2 = SvPVbyte_nolen (req->sv1);
1497 req->sv2 = data;
1498 req->ptr1 = SvPVbyte_nolen (data);
1499
1500 REQ_SEND;
1501}
1502
1503void
1504aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1505 PROTOTYPE: $$$$;$
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = REQ_SENDFILE;
1511 req->sv1 = newSVsv (out_fh);
1512 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1513 req->sv2 = newSVsv (in_fh);
1514 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1515 req->offs = SvVAL64 (in_offset);
1516 req->size = length;
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1523 PROTOTYPE: $$$;$
1524 PPCODE:
1525{
1526 dREQ;
1527
1528 req->type = REQ_READAHEAD;
1529 req->sv1 = newSVsv (fh);
1530 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1531 req->offs = SvVAL64 (offset);
1532 req->size = length;
1533
1534 REQ_SEND;
1535}
1536
1537void
1538aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1539 ALIAS:
1540 aio_stat = REQ_STAT
1541 aio_lstat = REQ_LSTAT
1542 PPCODE:
1543{
1544 dREQ;
1545
1546 req->ptr2 = malloc (sizeof (Stat_t));
1547 if (!req->ptr2)
1548 { 1505 {
1549 req_destroy (req); 1506 STRLEN svlen;
1550 croak ("out of memory during aio_stat statdata allocation"); 1507 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1551 } 1508#ifdef IOCPARM_LEN
1509 STRLEN need = IOCPARM_LEN (request);
1510#else
1511 STRLEN need = 256;
1512#endif
1552 1513
1553 req->flags |= FLAG_PTR2_FREE; 1514 if (svlen < need)
1554 req->sv1 = newSVsv (fh_or_path); 1515 svptr = SvGROW (arg, need);
1555
1556 if (SvPOK (fh_or_path))
1557 {
1558 req->type = ix;
1559 req->ptr1 = SvPVbyte_nolen (req->sv1);
1560 } 1516 }
1561 else 1517 else
1518 svptr = (char *)SvIV (arg);
1519
1562 { 1520 {
1521 dREQ;
1522
1563 req->type = REQ_FSTAT; 1523 req->type = ix;
1564 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1524 req->sv1 = newSVsv (fh);
1525 req->int1 = fd;
1526 req->int2 = (long)request;
1527 req->sv2 = SvREFCNT_inc (arg);
1528 req->ptr2 = svptr;
1529
1530 REQ_SEND;
1565 } 1531 }
1532}
1533
1534void
1535aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1536 ALIAS:
1537 aio_readlink = EIO_READLINK
1538 aio_realpath = EIO_REALPATH
1539 PPCODE:
1540{
1541 dREQ;
1542
1543 req->type = ix;
1544 req_set_path1 (req, pathname);
1566 1545
1567 REQ_SEND; 1546 REQ_SEND;
1568} 1547}
1569 1548
1570void 1549void
1550aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1551 PPCODE:
1552{
1553 int ifd = s_fileno_croak (in_fh , 0);
1554 int ofd = s_fileno_croak (out_fh, 1);
1555 dREQ;
1556
1557 req->type = EIO_SENDFILE;
1558 req->sv1 = newSVsv (out_fh);
1559 req->int1 = ofd;
1560 req->sv2 = newSVsv (in_fh);
1561 req->int2 = ifd;
1562 req->offs = in_offset;
1563 req->size = length;
1564
1565 REQ_SEND;
1566}
1567
1568void
1569aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1570 PPCODE:
1571{
1572 int fd = s_fileno_croak (fh, 0);
1573 dREQ;
1574
1575 req->type = EIO_READAHEAD;
1576 req->sv1 = newSVsv (fh);
1577 req->int1 = fd;
1578 req->offs = offset;
1579 req->size = length;
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1586 ALIAS:
1587 aio_stat = EIO_STAT
1588 aio_lstat = EIO_LSTAT
1589 aio_statvfs = EIO_STATVFS
1590 PPCODE:
1591{
1592 dREQ;
1593
1594 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1595
1596 REQ_SEND;
1597}
1598
1599UV
1600major (UV dev)
1601 ALIAS:
1602 minor = 1
1603 CODE:
1604 RETVAL = ix ? minor (dev) : major (dev);
1605 OUTPUT:
1606 RETVAL
1607
1608UV
1609makedev (UV maj, UV min)
1610 CODE:
1611 RETVAL = makedev (maj, min);
1612 OUTPUT:
1613 RETVAL
1614
1615void
1571aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1616aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1572 PPCODE: 1617 PPCODE:
1573{ 1618{
1574 dREQ; 1619 dREQ;
1575 1620
1576 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1621 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1577 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1622 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1578 req->sv1 = newSVsv (fh_or_path); 1623 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1579
1580 if (SvPOK (fh_or_path))
1581 {
1582 req->type = REQ_UTIME;
1583 req->ptr1 = SvPVbyte_nolen (req->sv1);
1584 }
1585 else
1586 {
1587 req->type = REQ_FUTIME;
1588 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1589 }
1590 1624
1591 REQ_SEND; 1625 REQ_SEND;
1592} 1626}
1593 1627
1594void 1628void
1595aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1629aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1596 PPCODE: 1630 PPCODE:
1597{ 1631{
1598 dREQ; 1632 dREQ;
1599 1633
1600 req->mode = mode; 1634 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1601 req->sv1 = newSVsv (fh_or_path); 1635 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1602
1603 if (SvPOK (fh_or_path))
1604 {
1605 req->type = REQ_CHMOD;
1606 req->ptr1 = SvPVbyte_nolen (req->sv1);
1607 }
1608 else
1609 {
1610 req->type = REQ_FCHMOD;
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1612 }
1613 1636
1614 REQ_SEND; 1637 REQ_SEND;
1615} 1638}
1616 1639
1617void 1640void
1641aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1642 PPCODE:
1643{
1644 dREQ;
1645
1646 req->int2 = mode;
1647 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1648
1649 REQ_SEND;
1650}
1651
1652void
1618aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1653aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1619 PPCODE: 1654 PPCODE:
1620{ 1655{
1621 dREQ; 1656 dREQ;
1622 1657
1623 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1658 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1624 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1659 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1625 req->sv1 = newSVsv (fh_or_path); 1660 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1626
1627 if (SvPOK (fh_or_path))
1628 {
1629 req->type = REQ_CHOWN;
1630 req->ptr1 = SvPVbyte_nolen (req->sv1);
1631 }
1632 else
1633 {
1634 req->type = REQ_FCHOWN;
1635 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1636 }
1637 1661
1638 REQ_SEND; 1662 REQ_SEND;
1639} 1663}
1640 1664
1641void 1665void
1666aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 dREQ;
1670
1671 req->type = EIO_READDIR;
1672 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1673
1674 if (flags & EIO_READDIR_DENTS)
1675 req->int1 |= EIO_READDIR_CUSTOM2;
1676
1677 req_set_path1 (req, pathname);
1678
1679 REQ_SEND;
1680}
1681
1682void
1683aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1684 PPCODE:
1685{
1686 dREQ;
1687
1688 req->type = EIO_MKDIR;
1689 req->int2 = mode;
1690 req_set_path1 (req, pathname);
1691
1692 REQ_SEND;
1693}
1694
1695void
1642aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1696aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1643 ALIAS: 1697 ALIAS:
1644 aio_unlink = REQ_UNLINK 1698 aio_unlink = EIO_UNLINK
1645 aio_rmdir = REQ_RMDIR 1699 aio_rmdir = EIO_RMDIR
1646 aio_readdir = REQ_READDIR 1700 aio_readdir = EIO_READDIR
1647 PPCODE: 1701 PPCODE:
1648{ 1702{
1649 dREQ; 1703 dREQ;
1650 1704
1651 req->type = ix; 1705 req->type = ix;
1652 req->sv1 = newSVsv (pathname); 1706 req_set_path1 (req, pathname);
1653 req->ptr1 = SvPVbyte_nolen (req->sv1);
1654 1707
1655 REQ_SEND; 1708 REQ_SEND;
1656} 1709}
1657 1710
1658void 1711void
1659aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1712aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1713 ALIAS:
1714 aio_link = EIO_LINK
1715 aio_symlink = EIO_SYMLINK
1716 aio_rename = EIO_RENAME
1660 PPCODE: 1717 PPCODE:
1661{ 1718{
1662 dREQ; 1719 eio_wd wd2 = 0;
1663
1664 req->type = REQ_MKDIR;
1665 req->sv1 = newSVsv (pathname);
1666 req->ptr1 = SvPVbyte_nolen (req->sv1);
1667 req->mode = mode;
1668
1669 REQ_SEND;
1670}
1671
1672void
1673aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1674 ALIAS:
1675 aio_link = REQ_LINK
1676 aio_symlink = REQ_SYMLINK
1677 aio_rename = REQ_RENAME
1678 PPCODE:
1679{
1680 dREQ; 1720 dREQ;
1681 1721
1682 req->type = ix; 1722 req->type = ix;
1683 req->sv2 = newSVsv (oldpath); 1723 req_set_path1 (req, oldpath);
1684 req->ptr2 = SvPVbyte_nolen (req->sv2); 1724 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1685 req->sv1 = newSVsv (newpath); 1725 req->int3 = (long)wd2;
1686 req->ptr1 = SvPVbyte_nolen (req->sv1);
1687 1726
1688 REQ_SEND; 1727 REQ_SEND;
1689} 1728}
1690 1729
1691void 1730void
1692aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1731aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1693 PPCODE: 1732 PPCODE:
1694{ 1733{
1734 eio_wd wd2 = 0;
1695 dREQ; 1735 dREQ;
1696 1736
1697 req->type = REQ_MKNOD; 1737 req->type = EIO_RENAME;
1698 req->sv1 = newSVsv (pathname); 1738 req_set_path1 (req, oldpath);
1699 req->ptr1 = SvPVbyte_nolen (req->sv1); 1739 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1700 req->mode = (mode_t)mode; 1740 req->int2 = flags;
1701 req->offs = dev; 1741 req->int3 = (long)wd2;
1702 1742
1703 REQ_SEND; 1743 REQ_SEND;
1704} 1744}
1705 1745
1706void 1746void
1707aio_busy (double delay, SV *callback=&PL_sv_undef) 1747aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1708 PPCODE: 1748 PPCODE:
1709{ 1749{
1710 dREQ; 1750 dREQ;
1751
1752 req->type = EIO_MKNOD;
1753 req->int2 = (mode_t)mode;
1754 req->offs = dev;
1755 req_set_path1 (req, pathname);
1756
1757 REQ_SEND;
1758}
1711 1759
1760void
1761aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1762 ALIAS:
1763 aio_mtouch = EIO_MTOUCH
1764 aio_msync = EIO_MSYNC
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (flags < 0)
1772 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1773
1774 if (offset < 0)
1775 offset += svlen;
1776
1777 if (offset < 0 || offset > svlen)
1778 croak ("offset outside of scalar");
1779
1780 if (!SvOK (length) || len + offset > svlen)
1781 len = svlen - offset;
1782
1783 {
1784 dREQ;
1785
1786 req->type = ix;
1787 req->sv2 = SvREFCNT_inc (data);
1788 req->ptr2 = (char *)svptr + offset;
1789 req->size = len;
1790 req->int1 = flags;
1791
1792 REQ_SEND;
1793 }
1794}
1795
1796void
1797aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1798 PPCODE:
1799{
1800 STRLEN svlen;
1801 char *svptr = SvPVbyte (data, svlen);
1802 UV len = SvUV (length);
1803
1804 if (offset < 0)
1805 offset += svlen;
1806
1807 if (offset < 0 || offset > svlen)
1808 croak ("offset outside of scalar");
1809
1810 if (!SvOK (length) || len + offset > svlen)
1811 len = svlen - offset;
1812
1813 {
1814 dREQ;
1815
1816 req->type = EIO_MLOCK;
1817 req->sv2 = SvREFCNT_inc (data);
1818 req->ptr2 = (char *)svptr + offset;
1819 req->size = len;
1820
1821 REQ_SEND;
1822 }
1823}
1824
1825void
1826aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1827 PPCODE:
1828{
1829 dREQ;
1830
1831 req->type = EIO_MLOCKALL;
1832 req->int1 = flags;
1833
1834 REQ_SEND;
1835}
1836
1837void
1838aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1839 PPCODE:
1840{
1841 int fd = s_fileno_croak (fh, 0);
1842 dREQ;
1843
1844 req->type = EIO_CUSTOM;
1845 req->sv1 = newSVsv (fh);
1846 req->int1 = fd;
1847
1848 req->feed = fiemap;
1849#if HAVE_FIEMAP
1850 /* keep our fingers crossed that the next two types are 64 bit */
1851 req->offs = start;
1852 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1853 req->int2 = flags;
1854 req->int3 = SvOK (count) ? SvIV (count) : -1;
1855#endif
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 char *svptr = 0;
1865
1866 sv_clear_foreign (data);
1867
1868 if (length) /* known length, directly read into scalar */
1869 {
1870 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1871 svptr = sv_grow (data, length + 1);
1872 else if (SvCUR (data) < length)
1873 croak ("length outside of scalar, and cannot grow");
1874 else
1875 svptr = SvPVbyte_nolen (data);
1876 }
1877
1878 {
1879 dREQ;
1880
1881 req->type = EIO_SLURP;
1882 req_set_path1 (req, pathname);
1883 req->offs = offset;
1884 req->size = length;
1885 req->sv2 = SvREFCNT_inc (data);
1886 req->ptr2 = svptr;
1887
1888 if (!SvREADONLY (data))
1889 {
1890 SvREADONLY_on (data);
1891 req->flags |= FLAG_SV2_RO_OFF;
1892 }
1893
1894 REQ_SEND;
1895 }
1896}
1897
1898void
1899aio_busy (double delay, SV *callback = &PL_sv_undef)
1900 PPCODE:
1901{
1902 dREQ;
1903
1712 req->type = REQ_BUSY; 1904 req->type = EIO_BUSY;
1713 req->nv1 = delay < 0. ? 0. : delay; 1905 req->nv1 = delay < 0. ? 0. : delay;
1714 1906
1715 REQ_SEND; 1907 REQ_SEND;
1716} 1908}
1717 1909
1718void 1910void
1719aio_group (SV *callback=&PL_sv_undef) 1911aio_group (SV *callback = &PL_sv_undef)
1720 PROTOTYPE: ;$
1721 PPCODE: 1912 PPCODE:
1722{ 1913{
1723 dREQ; 1914 dREQ;
1724 1915
1725 req->type = REQ_GROUP; 1916 req->type = EIO_GROUP;
1726 1917
1918 PUTBACK;
1727 req_send (req); 1919 req_submit (req);
1920 SPAGAIN;
1921
1728 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1922 XPUSHs (req_sv (req, aio_grp_stash));
1729} 1923}
1730 1924
1731void 1925void
1732aio_nop (SV *callback=&PL_sv_undef) 1926aio_nop (SV *callback = &PL_sv_undef)
1927 ALIAS:
1928 aio_nop = EIO_NOP
1929 aio_sync = EIO_SYNC
1733 PPCODE: 1930 PPCODE:
1734{ 1931{
1735 dREQ; 1932 dREQ;
1736 1933
1737 req->type = REQ_NOP; 1934 req->type = ix;
1738 1935
1739 REQ_SEND; 1936 REQ_SEND;
1740} 1937}
1741 1938
1742int 1939int
1743aioreq_pri (int pri = 0) 1940aioreq_pri (int pri = NO_INIT)
1744 PROTOTYPE: ;$
1745 CODE: 1941 CODE:
1746 RETVAL = next_pri - PRI_BIAS; 1942 RETVAL = next_pri;
1747 if (items > 0) 1943 if (items > 0)
1748 { 1944 {
1749 if (pri < PRI_MIN) pri = PRI_MIN; 1945 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1750 if (pri > PRI_MAX) pri = PRI_MAX; 1946 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1751 next_pri = pri + PRI_BIAS; 1947 next_pri = pri;
1752 } 1948 }
1753 OUTPUT: 1949 OUTPUT:
1754 RETVAL 1950 RETVAL
1755 1951
1756void 1952void
1757aioreq_nice (int nice = 0) 1953aioreq_nice (int nice = 0)
1758 CODE: 1954 CODE:
1759 nice = next_pri - nice; 1955 nice = next_pri - nice;
1760 if (nice < PRI_MIN) nice = PRI_MIN; 1956 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1761 if (nice > PRI_MAX) nice = PRI_MAX; 1957 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1762 next_pri = nice + PRI_BIAS; 1958 next_pri = nice;
1763 1959
1764void 1960void
1765flush () 1961flush ()
1766 PROTOTYPE:
1767 CODE: 1962 CODE:
1768 while (nreqs) 1963 while (eio_nreqs ())
1769 { 1964 {
1770 poll_wait (); 1965 poll_wait ();
1771 poll_cb (); 1966 poll_cb ();
1772 } 1967 }
1773 1968
1774int 1969int
1775poll() 1970poll ()
1776 PROTOTYPE:
1777 CODE: 1971 CODE:
1778 poll_wait (); 1972 poll_wait ();
1779 RETVAL = poll_cb (); 1973 RETVAL = poll_cb ();
1780 OUTPUT: 1974 OUTPUT:
1781 RETVAL 1975 RETVAL
1782 1976
1783int 1977int
1784poll_fileno() 1978poll_fileno ()
1785 PROTOTYPE:
1786 CODE: 1979 CODE:
1787 RETVAL = respipe [0]; 1980 RETVAL = s_epipe_fd (&respipe);
1788 OUTPUT: 1981 OUTPUT:
1789 RETVAL 1982 RETVAL
1790 1983
1791int 1984int
1792poll_cb(...) 1985poll_cb (...)
1793 PROTOTYPE: 1986 PROTOTYPE:
1794 CODE: 1987 CODE:
1795 RETVAL = poll_cb (); 1988 RETVAL = poll_cb ();
1796 OUTPUT: 1989 OUTPUT:
1797 RETVAL 1990 RETVAL
1798 1991
1799void 1992void
1800poll_wait() 1993poll_wait ()
1801 PROTOTYPE:
1802 CODE: 1994 CODE:
1803 poll_wait (); 1995 poll_wait ();
1804 1996
1805void
1806setsig (int signum = SIGIO)
1807 PROTOTYPE: ;$
1808 CODE:
1809{
1810 if (block_sig_level)
1811 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1812
1813 LOCK (reslock);
1814 main_tid = pthread_self ();
1815 main_sig = signum;
1816 UNLOCK (reslock);
1817
1818 if (main_sig && npending)
1819 pthread_kill (main_tid, main_sig);
1820}
1821
1822void
1823aio_block (SV *cb)
1824 PROTOTYPE: &
1825 PPCODE:
1826{
1827 int count;
1828
1829 block_sig ();
1830 PUSHMARK (SP);
1831 PUTBACK;
1832 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1833 SPAGAIN;
1834 unblock_sig ();
1835
1836 if (SvTRUE (ERRSV))
1837 croak (0);
1838
1839 XSRETURN (count);
1840}
1841
1842int 1997int
1843nreqs() 1998nreqs ()
1844 PROTOTYPE:
1845 CODE: 1999 CODE:
1846 RETVAL = nreqs; 2000 RETVAL = eio_nreqs ();
1847 OUTPUT: 2001 OUTPUT:
1848 RETVAL 2002 RETVAL
1849 2003
1850int 2004int
1851nready() 2005nready ()
1852 PROTOTYPE:
1853 CODE: 2006 CODE:
1854 RETVAL = get_nready (); 2007 RETVAL = eio_nready ();
1855 OUTPUT: 2008 OUTPUT:
1856 RETVAL 2009 RETVAL
1857 2010
1858int 2011int
1859npending() 2012npending ()
1860 PROTOTYPE:
1861 CODE: 2013 CODE:
1862 RETVAL = get_npending (); 2014 RETVAL = eio_npending ();
1863 OUTPUT: 2015 OUTPUT:
1864 RETVAL 2016 RETVAL
1865 2017
1866int 2018int
1867nthreads() 2019nthreads ()
1868 PROTOTYPE:
1869 CODE: 2020 CODE:
1870 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2021 RETVAL = eio_nthreads ();
1871 RETVAL = started;
1872 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1873 OUTPUT: 2022 OUTPUT:
1874 RETVAL 2023 RETVAL
1875 2024
2025int
2026fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2027 CODE:
2028 RETVAL = posix_fadvise (fh, offset, length, advice);
2029 OUTPUT:
2030 RETVAL
2031
2032IV
2033sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2034 CODE:
2035 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2036 OUTPUT:
2037 RETVAL
2038
2039void
2040mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2041 PPCODE:
2042 sv_clear_foreign (scalar);
2043{
2044 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2045 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2046 if (addr == (void *)-1)
2047 XSRETURN_NO;
2048
2049 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2050
2051 if (!(prot & PROT_WRITE))
2052 SvREADONLY_on (scalar);
2053
2054 XSRETURN_YES;
2055}
2056
2057void
2058munmap (SV *scalar)
2059 CODE:
2060 sv_clear_foreign (scalar);
2061
2062int
2063madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2064 ALIAS:
2065 mprotect = 1
2066 CODE:
2067{
2068 STRLEN svlen;
2069 void *addr = SvPVbyte (scalar, svlen);
2070 STRLEN len = SvUV (length);
2071
2072 if (offset < 0)
2073 offset += svlen;
2074
2075 if (offset < 0 || offset > svlen)
2076 croak ("offset outside of scalar");
2077
2078 if (!SvOK (length) || len + offset > svlen)
2079 len = svlen - offset;
2080
2081 addr = (void *)(((intptr_t)addr) + offset);
2082 eio_page_align (&addr, &len);
2083
2084 switch (ix)
2085 {
2086 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2087 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2088 }
2089}
2090 OUTPUT:
2091 RETVAL
2092
2093int
2094munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2095 CODE:
2096{
2097 STRLEN svlen;
2098 void *addr = SvPVbyte (scalar, svlen);
2099 size_t len = SvUV (length);
2100
2101 if (offset < 0)
2102 offset += svlen;
2103
2104 if (offset < 0 || offset > svlen)
2105 croak ("offset outside of scalar");
2106
2107 if (!SvOK (length) || len + offset > svlen)
2108 len = svlen - offset;
2109
2110 addr = (void *)(((intptr_t)addr) + offset);
2111 eio_page_align (&addr, &len);
2112#if _POSIX_MEMLOCK_RANGE
2113 RETVAL = munlock (addr, len);
2114#else
2115 RETVAL = EIO_ENOSYS ();
2116#endif
2117}
2118 OUTPUT:
2119 RETVAL
2120
2121int
2122munlockall ()
2123 CODE:
2124#if _POSIX_MEMLOCK
2125 munlockall ();
2126#else
2127 RETVAL = EIO_ENOSYS ();
2128#endif
2129 OUTPUT:
2130 RETVAL
2131
2132int
2133splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2134 CODE:
2135{
2136#if HAVE_LINUX_SPLICE
2137 loff_t off_in_, off_out_;
2138 RETVAL = splice (
2139 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2140 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2141 length, flags
2142 );
2143#else
2144 RETVAL = EIO_ENOSYS ();
2145#endif
2146}
2147 OUTPUT:
2148 RETVAL
2149
2150int
2151tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2152 CODE:
2153#if HAVE_LINUX_SPLICE
2154 RETVAL = tee (rfh, wfh, length, flags);
2155#else
2156 RETVAL = EIO_ENOSYS ();
2157#endif
2158 OUTPUT:
2159 RETVAL
2160
2161int
2162pipesize (aio_rfd rfh, int new_size = -1)
2163 PROTOTYPE: $;$
2164 CODE:
2165#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2166 if (new_size >= 0)
2167 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2168 else
2169 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2170#else
2171 errno = ENOSYS;
2172 RETVAL = -1;
2173#endif
2174 OUTPUT:
2175 RETVAL
2176
2177void
2178pipe2 (int flags = 0)
2179 PROTOTYPE: ;$
2180 PPCODE:
2181{
2182 int fd[2];
2183 int res;
2184
2185 if (flags)
2186#if HAVE_PIPE2
2187 res = pipe2 (fd, flags);
2188#else
2189 res = (errno = ENOSYS, -1);
2190#endif
2191 else
2192 res = pipe (fd);
2193
2194 if (!res)
2195 {
2196 EXTEND (SP, 2);
2197 PUSHs (newmortalFH (fd[0], O_RDONLY));
2198 PUSHs (newmortalFH (fd[1], O_WRONLY));
2199 }
2200}
2201
2202void
2203eventfd (unsigned int initval = 0, int flags = 0)
2204 PPCODE:
2205{
2206 int fd;
2207#if HAVE_EVENTFD
2208 fd = eventfd (initval, flags);
2209#else
2210 fd = (errno = ENOSYS, -1);
2211#endif
2212
2213 XPUSHs (newmortalFH (fd, O_RDWR));
2214}
2215
2216void
2217timerfd_create (int clockid, int flags = 0)
2218 PPCODE:
2219{
2220 int fd;
2221#if HAVE_TIMERFD
2222 fd = timerfd_create (clockid, flags);
2223#else
2224 fd = (errno = ENOSYS, -1);
2225#endif
2226
2227 XPUSHs (newmortalFH (fd, O_RDWR));
2228}
2229
2230void
2231timerfd_settime (SV *fh, int flags, NV interval, NV value)
2232 PPCODE:
2233{
2234 int fd = s_fileno_croak (fh, 0);
2235 int res;
2236 struct itimerspec its, ots;
2237
2238 ts_set (&its.it_interval, interval);
2239 ts_set (&its.it_value , value);
2240#if HAVE_TIMERFD
2241 res = timerfd_settime (fd, flags, &its, &ots);
2242#else
2243 res = (errno = ENOSYS, -1);
2244#endif
2245
2246 if (!res)
2247 {
2248 EXTEND (SP, 2);
2249 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2250 PUSHs (newSVnv (ts_get (&ots.it_value)));
2251 }
2252}
2253
2254void
2255timerfd_gettime (SV *fh)
2256 PPCODE:
2257{
2258 int fd = s_fileno_croak (fh, 0);
2259 int res;
2260 struct itimerspec ots;
2261#if HAVE_TIMERFD
2262 res = timerfd_gettime (fd, &ots);
2263#else
2264 res = (errno = ENOSYS, -1);
2265#endif
2266
2267 if (!res)
2268 {
2269 EXTEND (SP, 2);
2270 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2271 PUSHs (newSVnv (ts_get (&ots.it_value)));
2272 }
2273}
2274
2275UV
2276get_fdlimit ()
2277 CODE:
2278#if HAVE_RLIMITS
2279 struct rlimit rl;
2280 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2281 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2282#endif
2283 XSRETURN_UNDEF;
2284 OUTPUT:
2285 RETVAL
2286
2287void
2288min_fdlimit (UV limit = 0x7fffffffU)
2289 CODE:
2290{
2291#if HAVE_RLIMITS
2292 struct rlimit rl;
2293 rlim_t orig_rlim_max;
2294 UV bit;
2295
2296 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2297 goto fail;
2298
2299 if (rl.rlim_cur == RLIM_INFINITY)
2300 XSRETURN_YES;
2301
2302 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2303
2304 if (rl.rlim_cur < limit)
2305 {
2306 rl.rlim_cur = limit;
2307
2308 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2309 rl.rlim_max = rl.rlim_cur;
2310 }
2311
2312 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2313 XSRETURN_YES;
2314
2315 if (errno == EPERM)
2316 {
2317 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2318 /* our limit overflows a system-wide limit */
2319 /* try an adaptive algorithm, but do not lower the hardlimit */
2320 rl.rlim_max = 0;
2321 for (bit = 0x40000000U; bit; bit >>= 1)
2322 {
2323 rl.rlim_max |= bit;
2324 rl.rlim_cur = rl.rlim_max;
2325
2326 /* nevr decrease the hard limit */
2327 if (rl.rlim_max < orig_rlim_max)
2328 break;
2329
2330 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2331 rl.rlim_max &= ~bit; /* too high, remove bit again */
2332 }
2333
2334 /* now, raise the soft limit to the max permitted */
2335 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2336 {
2337 rl.rlim_cur = rl.rlim_max;
2338 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2339 errno = EPERM;
2340 }
2341 }
2342#endif
2343 fail:
2344 XSRETURN_UNDEF;
2345}
2346
2347void _on_next_submit (SV *cb)
2348 CODE:
2349 SvREFCNT_dec (on_next_submit);
2350 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2351
1876PROTOTYPES: DISABLE 2352PROTOTYPES: DISABLE
2353
2354MODULE = IO::AIO PACKAGE = IO::AIO::WD
2355
2356BOOT:
2357{
2358 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2359 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2360}
2361
2362void
2363DESTROY (SV *self)
2364 CODE:
2365{
2366 aio_wd wd = SvAIO_WD (self);
2367#if HAVE_AT
2368 {
2369 SV *callback = &PL_sv_undef;
2370 dREQ; /* clobbers next_pri :/ */
2371 next_pri = req->pri; /* restore next_pri */
2372 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2373 req->type = EIO_WD_CLOSE;
2374 req->wd = wd;
2375 REQ_SEND;
2376 }
2377#else
2378 eio_wd_close_sync (wd);
2379#endif
2380}
1877 2381
1878MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2382MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1879 2383
1880void 2384void
1881cancel (aio_req_ornot req) 2385cancel (aio_req_ornot req)
1882 CODE: 2386 CODE:
1883 req_cancel (req); 2387 eio_cancel (req);
1884 2388
1885void 2389void
1886cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2390cb (aio_req_ornot req, SV *callback = NO_INIT)
1887 CODE: 2391 PPCODE:
2392{
2393 if (GIMME_V != G_VOID)
2394 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2395
2396 if (items > 1)
2397 {
2398 SV *cb_cv = get_cb (callback);
2399
1888 SvREFCNT_dec (req->callback); 2400 SvREFCNT_dec (req->callback);
1889 req->callback = newSVsv (callback); 2401 req->callback = SvREFCNT_inc (cb_cv);
2402 }
2403}
1890 2404
1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2405MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1892 2406
1893void 2407void
1894add (aio_req grp, ...) 2408add (aio_req grp, ...)
1895 PPCODE: 2409 PPCODE:
1896{ 2410{
1897 int i; 2411 int i;
1898 aio_req req;
1899
1900 if (main_sig && !block_sig_level)
1901 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1902 2412
1903 if (grp->int1 == 2) 2413 if (grp->int1 == 2)
1904 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2414 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1905 2415
1906 for (i = 1; i < items; ++i ) 2416 for (i = 1; i < items; ++i )
1907 { 2417 {
2418 aio_req req;
2419
1908 if (GIMME_V != G_VOID) 2420 if (GIMME_V != G_VOID)
1909 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2421 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1910 2422
1911 req = SvAIO_REQ (ST (i)); 2423 req = SvAIO_REQ (ST (i));
1912 2424
1913 if (req) 2425 if (req)
1914 { 2426 eio_grp_add (grp, req);
1915 ++grp->size;
1916 req->grp = grp;
1917
1918 req->grp_prev = 0;
1919 req->grp_next = grp->grp_first;
1920
1921 if (grp->grp_first)
1922 grp->grp_first->grp_prev = req;
1923
1924 grp->grp_first = req;
1925 }
1926 } 2427 }
1927} 2428}
1928 2429
1929void 2430void
1930cancel_subs (aio_req_ornot req) 2431cancel_subs (aio_req_ornot req)
… …
1939 AV *av; 2440 AV *av;
1940 2441
1941 grp->errorno = errno; 2442 grp->errorno = errno;
1942 2443
1943 av = newAV (); 2444 av = newAV ();
2445 av_extend (av, items - 1);
1944 2446
1945 for (i = 1; i < items; ++i ) 2447 for (i = 1; i < items; ++i )
1946 av_push (av, newSVsv (ST (i))); 2448 av_push (av, newSVsv (ST (i)));
1947 2449
1948 SvREFCNT_dec (grp->sv1); 2450 SvREFCNT_dec (grp->sv1);
… …
1955 grp->errorno = errorno; 2457 grp->errorno = errorno;
1956 2458
1957void 2459void
1958limit (aio_req grp, int limit) 2460limit (aio_req grp, int limit)
1959 CODE: 2461 CODE:
1960 grp->int2 = limit; 2462 eio_grp_limit (grp, limit);
1961 aio_grp_feed (grp);
1962 2463
1963void 2464void
1964feed (aio_req grp, SV *callback=&PL_sv_undef) 2465feed (aio_req grp, SV *callback = &PL_sv_undef)
1965 CODE: 2466 CODE:
1966{ 2467{
1967 SvREFCNT_dec (grp->sv2); 2468 SvREFCNT_dec (grp->sv2);
1968 grp->sv2 = newSVsv (callback); 2469 grp->sv2 = newSVsv (callback);
2470 grp->feed = aio_grp_feed;
1969 2471
1970 if (grp->int2 <= 0) 2472 if (grp->int2 <= 0)
1971 grp->int2 = 2; 2473 grp->int2 = 2;
1972 2474
1973 aio_grp_feed (grp); 2475 eio_grp_limit (grp, grp->int2);
1974} 2476}
1975 2477

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