1 | #define _XOPEN_SOURCE 500 |
1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
2 | |
3 | |
3 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
4 | #include "perl.h" |
5 | #include "perl.h" |
5 | #include "XSUB.h" |
6 | #include "XSUB.h" |
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7 | |
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8 | #include "autoconf/config.h" |
6 | |
9 | |
7 | #include <sys/types.h> |
10 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
11 | #include <sys/stat.h> |
9 | |
12 | |
10 | #include <unistd.h> |
13 | #include <unistd.h> |
11 | #include <fcntl.h> |
14 | #include <fcntl.h> |
12 | #include <signal.h> |
15 | #include <signal.h> |
13 | #include <sched.h> |
16 | #include <sched.h> |
14 | #if __linux |
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15 | #include <sys/syscall.h> |
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16 | #endif |
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17 | |
17 | |
18 | #include <pthread.h> |
18 | #include <pthread.h> |
19 | |
19 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
… | |
… | |
29 | |
29 | |
30 | enum { |
30 | enum { |
31 | REQ_QUIT, |
31 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
32 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
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36 | REQ_UNLINK, REQ_RMDIR, |
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37 | REQ_SYMLINK, |
36 | }; |
38 | }; |
37 | |
39 | |
38 | typedef struct aio_cb { |
40 | typedef struct aio_cb { |
39 | struct aio_cb *volatile next; |
41 | struct aio_cb *volatile next; |
40 | |
42 | |
… | |
… | |
44 | off_t offset; |
46 | off_t offset; |
45 | size_t length; |
47 | size_t length; |
46 | ssize_t result; |
48 | ssize_t result; |
47 | mode_t mode; /* open */ |
49 | mode_t mode; /* open */ |
48 | int errorno; |
50 | int errorno; |
49 | SV *data, *callback; |
51 | SV *data, *callback, *fh; |
50 | void *dataptr; |
52 | void *dataptr, *data2ptr; |
51 | STRLEN dataoffset; |
53 | STRLEN dataoffset; |
52 | |
54 | |
53 | Stat_t *statdata; |
55 | Stat_t *statdata; |
54 | } aio_cb; |
56 | } aio_cb; |
55 | |
57 | |
… | |
… | |
60 | static int max_outstanding = 1<<30; |
62 | static int max_outstanding = 1<<30; |
61 | static int respipe [2]; |
63 | static int respipe [2]; |
62 | |
64 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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67 | static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
69 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
70 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
71 | static volatile aio_req ress, rese; /* queue start, queue end */ |
69 | |
72 | |
… | |
… | |
90 | pthread_mutex_lock (&reslock); |
93 | pthread_mutex_lock (&reslock); |
91 | |
94 | |
92 | { |
95 | { |
93 | /* read any signals sent by the worker threads */ |
96 | /* read any signals sent by the worker threads */ |
94 | char buf [32]; |
97 | char buf [32]; |
95 | while (read (respipe [0], buf, 32) > 0) |
98 | while (read (respipe [0], buf, 32) == 32) |
96 | ; |
99 | ; |
97 | } |
100 | } |
98 | |
101 | |
99 | req = ress; |
102 | req = ress; |
100 | ress = rese = 0; |
103 | ress = rese = 0; |
… | |
… | |
117 | + req->result > 0 ? req->result : 0); |
120 | + req->result > 0 ? req->result : 0); |
118 | |
121 | |
119 | if (req->data) |
122 | if (req->data) |
120 | SvREFCNT_dec (req->data); |
123 | SvREFCNT_dec (req->data); |
121 | |
124 | |
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125 | if (req->fh) |
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126 | SvREFCNT_dec (req->fh); |
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127 | |
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
128 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
123 | { |
129 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
130 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststatval = req->result; |
131 | PL_laststatval = req->result; |
126 | PL_statcache = *(req->statdata); |
132 | PL_statcache = *(req->statdata); |
127 | |
133 | |
128 | Safefree (req->statdata); |
134 | Safefree (req->statdata); |
129 | } |
135 | } |
130 | |
136 | |
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137 | ENTER; |
131 | PUSHMARK (SP); |
138 | PUSHMARK (SP); |
132 | XPUSHs (sv_2mortal (newSViv (req->result))); |
139 | XPUSHs (sv_2mortal (newSViv (req->result))); |
133 | |
140 | |
134 | if (req->type == REQ_OPEN) |
141 | if (req->type == REQ_OPEN) |
135 | { |
142 | { |
… | |
… | |
138 | |
145 | |
139 | PUTBACK; |
146 | PUTBACK; |
140 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
147 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
141 | SPAGAIN; |
148 | SPAGAIN; |
142 | |
149 | |
143 | fh = POPs; |
150 | fh = SvREFCNT_inc (POPs); |
144 | |
151 | |
145 | PUSHMARK (SP); |
152 | PUSHMARK (SP); |
146 | XPUSHs (fh); |
153 | XPUSHs (sv_2mortal (fh)); |
147 | } |
154 | } |
148 | |
155 | |
149 | if (SvOK (req->callback)) |
156 | if (SvOK (req->callback)) |
150 | { |
157 | { |
151 | PUTBACK; |
158 | PUTBACK; |
152 | call_sv (req->callback, G_VOID | G_EVAL); |
159 | call_sv (req->callback, G_VOID | G_EVAL); |
153 | SPAGAIN; |
160 | SPAGAIN; |
154 | } |
161 | } |
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162 | |
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163 | LEAVE; |
155 | |
164 | |
156 | if (req->callback) |
165 | if (req->callback) |
157 | SvREFCNT_dec (req->callback); |
166 | SvREFCNT_dec (req->callback); |
158 | |
167 | |
159 | errno = errorno; |
168 | errno = errorno; |
… | |
… | |
227 | req->type = REQ_QUIT; |
236 | req->type = REQ_QUIT; |
228 | |
237 | |
229 | send_req (req); |
238 | send_req (req); |
230 | } |
239 | } |
231 | |
240 | |
232 | static void |
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233 | read_write (int dowrite, int fd, off_t offset, size_t length, |
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234 | SV *data, STRLEN dataoffset, SV *callback) |
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235 | { |
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236 | aio_req req; |
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237 | STRLEN svlen; |
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238 | char *svptr = SvPV (data, svlen); |
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239 | |
241 | |
240 | SvUPGRADE (data, SVt_PV); |
242 | static void min_parallel (int nthreads) |
241 | SvPOK_on (data); |
243 | { |
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244 | while (nthreads > started) |
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245 | start_thread (); |
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246 | } |
242 | |
247 | |
243 | if (dataoffset < 0) |
248 | static void max_parallel (int nthreads) |
244 | dataoffset += svlen; |
249 | { |
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250 | int cur = started; |
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251 | while (cur > nthreads) |
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252 | { |
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253 | end_thread (); |
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254 | cur--; |
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255 | } |
245 | |
256 | |
246 | if (dataoffset < 0 || dataoffset > svlen) |
257 | while (started > nthreads) |
247 | croak ("data offset outside of string"); |
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248 | |
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249 | if (dowrite) |
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250 | { |
258 | { |
251 | /* write: check length and adjust. */ |
259 | poll_wait (); |
252 | if (length < 0 || length + dataoffset > svlen) |
260 | poll_cb (); |
253 | length = svlen - dataoffset; |
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254 | } |
261 | } |
255 | else |
262 | } |
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263 | |
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264 | static int fork_started; |
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265 | |
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266 | static void atfork_prepare (void) |
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267 | { |
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268 | pthread_mutex_lock (&frklock); |
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269 | |
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270 | fork_started = started; |
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271 | |
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272 | for (;;) { |
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273 | while (nreqs) |
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274 | { |
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275 | poll_wait (); |
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276 | poll_cb (); |
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277 | } |
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278 | |
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279 | max_parallel (0); |
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280 | |
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281 | pthread_mutex_lock (&reqlock); |
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282 | |
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283 | if (!nreqs && !started) |
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284 | break; |
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285 | |
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286 | pthread_mutex_unlock (&reqlock); |
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287 | |
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288 | min_parallel (fork_started); |
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289 | } |
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290 | |
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291 | pthread_mutex_lock (&reslock); |
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292 | |
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293 | assert (!started); |
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294 | assert (!nreqs); |
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295 | assert (!reqs && !reqe); |
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296 | assert (!ress && !rese); |
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297 | } |
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298 | |
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299 | static void atfork_parent (void) |
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300 | { |
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301 | pthread_mutex_unlock (&reslock); |
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302 | min_parallel (fork_started); |
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303 | pthread_mutex_unlock (&reqlock); |
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304 | pthread_mutex_unlock (&frklock); |
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305 | } |
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306 | |
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307 | static void atfork_child (void) |
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308 | { |
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309 | reqs = reqe = 0; |
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310 | |
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311 | atfork_parent (); |
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312 | } |
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313 | |
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314 | /*****************************************************************************/ |
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315 | /* work around various missing functions */ |
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316 | |
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317 | #if !HAVE_PREADWRITE |
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318 | # define pread aio_pread |
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319 | # define pwrite aio_pwrite |
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320 | |
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321 | /* |
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322 | * make our pread/pwrite safe against themselves, but not against |
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323 | * normal read/write by using a mutex. slows down execution a lot, |
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324 | * but that's your problem, not mine. |
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325 | */ |
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326 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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327 | |
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328 | static ssize_t |
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329 | pread (int fd, void *buf, size_t count, off_t offset) |
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330 | { |
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331 | ssize_t res; |
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332 | off_t ooffset; |
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333 | |
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334 | pthread_mutex_lock (&iolock); |
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335 | ooffset = lseek (fd, 0, SEEK_CUR); |
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336 | lseek (fd, offset, SEEK_SET); |
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337 | res = read (fd, buf, count); |
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338 | lseek (fd, ooffset, SEEK_SET); |
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339 | pthread_mutex_unlock (&iolock); |
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340 | |
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341 | return res; |
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342 | } |
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343 | |
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344 | static ssize_t |
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345 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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346 | { |
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347 | ssize_t res; |
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348 | off_t ooffset; |
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349 | |
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350 | pthread_mutex_lock (&iolock); |
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351 | ooffset = lseek (fd, 0, SEEK_CUR); |
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352 | lseek (fd, offset, SEEK_SET); |
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353 | res = write (fd, buf, count); |
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354 | lseek (fd, offset, SEEK_SET); |
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355 | pthread_mutex_unlock (&iolock); |
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356 | |
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357 | return res; |
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358 | } |
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359 | #endif |
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360 | |
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361 | #if !HAVE_FDATASYNC |
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362 | # define fdatasync fsync |
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363 | #endif |
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364 | |
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365 | #if !HAVE_READAHEAD |
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366 | # define readahead aio_readahead |
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367 | |
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368 | static char readahead_buf[4096]; |
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369 | |
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370 | static ssize_t |
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371 | readahead (int fd, off_t offset, size_t count) |
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372 | { |
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373 | while (count > 0) |
256 | { |
374 | { |
257 | /* read: grow scalar as necessary */ |
375 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
258 | svptr = SvGROW (data, length + dataoffset); |
376 | |
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377 | pread (fd, readahead_buf, len, offset); |
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378 | offset += len; |
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379 | count -= len; |
259 | } |
380 | } |
260 | |
381 | |
261 | if (length < 0) |
382 | errno = 0; |
262 | croak ("length must not be negative"); |
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263 | |
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264 | Newz (0, req, 1, aio_cb); |
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265 | |
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266 | if (!req) |
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267 | croak ("out of memory during aio_req allocation"); |
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268 | |
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269 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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270 | req->fd = fd; |
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271 | req->offset = offset; |
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272 | req->length = length; |
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273 | req->data = SvREFCNT_inc (data); |
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274 | req->dataptr = (char *)svptr + dataoffset; |
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275 | req->callback = SvREFCNT_inc (callback); |
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276 | |
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277 | send_req (req); |
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278 | } |
383 | } |
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384 | #endif |
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385 | |
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386 | /*****************************************************************************/ |
279 | |
387 | |
280 | static void * |
388 | static void * |
281 | aio_proc (void *thr_arg) |
389 | aio_proc (void *thr_arg) |
282 | { |
390 | { |
283 | aio_req req; |
391 | aio_req req; |
… | |
… | |
311 | |
419 | |
312 | switch (type) |
420 | switch (type) |
313 | { |
421 | { |
314 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
422 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
315 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
423 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
316 | #if SYS_readahead |
424 | |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
425 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
318 | #else |
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319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
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320 | #endif |
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321 | |
426 | |
322 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
427 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
323 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
428 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
324 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
429 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
325 | |
430 | |
326 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
431 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
327 | case REQ_CLOSE: req->result = close (req->fd); break; |
432 | case REQ_CLOSE: req->result = close (req->fd); break; |
328 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
433 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
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434 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
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435 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
329 | |
436 | |
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437 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
330 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
438 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
331 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
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332 | |
439 | |
333 | case REQ_QUIT: |
440 | case REQ_QUIT: |
334 | break; |
441 | break; |
335 | |
442 | |
336 | default: |
443 | default: |
… | |
… | |
362 | while (type != REQ_QUIT); |
469 | while (type != REQ_QUIT); |
363 | |
470 | |
364 | return 0; |
471 | return 0; |
365 | } |
472 | } |
366 | |
473 | |
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474 | #define dREQ \ |
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475 | aio_req req; \ |
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476 | \ |
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477 | if (SvOK (callback) && !SvROK (callback)) \ |
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478 | croak ("clalback must be undef or of reference type"); \ |
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479 | \ |
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480 | Newz (0, req, 1, aio_cb); \ |
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481 | if (!req) \ |
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482 | croak ("out of memory during aio_req allocation"); \ |
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483 | \ |
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484 | req->callback = SvREFCNT_inc (callback); |
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485 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
486 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
487 | |
369 | PROTOTYPES: ENABLE |
488 | PROTOTYPES: ENABLE |
370 | |
489 | |
371 | BOOT: |
490 | BOOT: |
… | |
… | |
376 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
495 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
377 | croak ("cannot set result pipe to nonblocking mode"); |
496 | croak ("cannot set result pipe to nonblocking mode"); |
378 | |
497 | |
379 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
498 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
380 | croak ("cannot set result pipe to nonblocking mode"); |
499 | croak ("cannot set result pipe to nonblocking mode"); |
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500 | |
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501 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
381 | } |
502 | } |
382 | |
503 | |
383 | void |
504 | void |
384 | min_parallel(nthreads) |
505 | min_parallel(nthreads) |
385 | int nthreads |
506 | int nthreads |
386 | PROTOTYPE: $ |
507 | PROTOTYPE: $ |
387 | CODE: |
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388 | while (nthreads > started) |
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389 | start_thread (); |
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390 | |
508 | |
391 | void |
509 | void |
392 | max_parallel(nthreads) |
510 | max_parallel(nthreads) |
393 | int nthreads |
511 | int nthreads |
394 | PROTOTYPE: $ |
512 | PROTOTYPE: $ |
395 | CODE: |
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396 | { |
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397 | int cur = started; |
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398 | while (cur > nthreads) |
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399 | { |
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400 | end_thread (); |
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401 | cur--; |
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402 | } |
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403 | |
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404 | while (started > nthreads) |
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405 | { |
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406 | poll_wait (); |
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407 | poll_cb (); |
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408 | } |
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409 | } |
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410 | |
513 | |
411 | int |
514 | int |
412 | max_outstanding(nreqs) |
515 | max_outstanding(nreqs) |
413 | int nreqs |
516 | int nreqs |
414 | PROTOTYPE: $ |
517 | PROTOTYPE: $ |
… | |
… | |
423 | int mode |
526 | int mode |
424 | SV * callback |
527 | SV * callback |
425 | PROTOTYPE: $$$;$ |
528 | PROTOTYPE: $$$;$ |
426 | CODE: |
529 | CODE: |
427 | { |
530 | { |
428 | aio_req req; |
531 | dREQ; |
429 | |
|
|
430 | Newz (0, req, 1, aio_cb); |
|
|
431 | |
|
|
432 | if (!req) |
|
|
433 | croak ("out of memory during aio_req allocation"); |
|
|
434 | |
532 | |
435 | req->type = REQ_OPEN; |
533 | req->type = REQ_OPEN; |
436 | req->data = newSVsv (pathname); |
534 | req->data = newSVsv (pathname); |
437 | req->dataptr = SvPV_nolen (req->data); |
535 | req->dataptr = SvPVbyte_nolen (req->data); |
438 | req->fd = flags; |
536 | req->fd = flags; |
439 | req->mode = mode; |
537 | req->mode = mode; |
440 | req->callback = SvREFCNT_inc (callback); |
|
|
441 | |
538 | |
442 | send_req (req); |
539 | send_req (req); |
443 | } |
540 | } |
444 | |
541 | |
445 | void |
542 | void |
446 | aio_close(fh,callback=&PL_sv_undef) |
543 | aio_close(fh,callback=&PL_sv_undef) |
447 | InputStream fh |
544 | SV * fh |
448 | SV * callback |
545 | SV * callback |
449 | PROTOTYPE: $;$ |
546 | PROTOTYPE: $;$ |
450 | ALIAS: |
547 | ALIAS: |
451 | aio_close = REQ_CLOSE |
548 | aio_close = REQ_CLOSE |
452 | aio_fsync = REQ_FSYNC |
549 | aio_fsync = REQ_FSYNC |
453 | aio_fdatasync = REQ_FDATASYNC |
550 | aio_fdatasync = REQ_FDATASYNC |
454 | CODE: |
551 | CODE: |
455 | { |
552 | { |
456 | aio_req req; |
553 | dREQ; |
457 | |
|
|
458 | Newz (0, req, 1, aio_cb); |
|
|
459 | |
|
|
460 | if (!req) |
|
|
461 | croak ("out of memory during aio_req allocation"); |
|
|
462 | |
554 | |
463 | req->type = ix; |
555 | req->type = ix; |
|
|
556 | req->fh = newSVsv (fh); |
464 | req->fd = PerlIO_fileno (fh); |
557 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
465 | req->callback = SvREFCNT_inc (callback); |
|
|
466 | |
558 | |
467 | send_req (req); |
559 | send_req (req); |
468 | } |
560 | } |
469 | |
561 | |
470 | void |
562 | void |
471 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
563 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
472 | InputStream fh |
564 | SV * fh |
473 | UV offset |
565 | UV offset |
474 | IV length |
566 | IV length |
475 | SV * data |
567 | SV * data |
476 | IV dataoffset |
568 | IV dataoffset |
477 | SV * callback |
569 | SV * callback |
|
|
570 | ALIAS: |
|
|
571 | aio_read = REQ_READ |
|
|
572 | aio_write = REQ_WRITE |
478 | PROTOTYPE: $$$$$;$ |
573 | PROTOTYPE: $$$$$;$ |
479 | CODE: |
574 | CODE: |
480 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
575 | { |
|
|
576 | aio_req req; |
|
|
577 | STRLEN svlen; |
|
|
578 | char *svptr = SvPVbyte (data, svlen); |
481 | |
579 | |
482 | void |
580 | SvUPGRADE (data, SVt_PV); |
483 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
581 | SvPOK_on (data); |
484 | OutputStream fh |
582 | |
485 | UV offset |
583 | if (dataoffset < 0) |
486 | IV length |
584 | dataoffset += svlen; |
487 | SV * data |
585 | |
488 | IV dataoffset |
586 | if (dataoffset < 0 || dataoffset > svlen) |
489 | SV * callback |
587 | croak ("data offset outside of string"); |
490 | PROTOTYPE: $$$$$;$ |
588 | |
491 | CODE: |
589 | if (ix == REQ_WRITE) |
492 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
590 | { |
|
|
591 | /* write: check length and adjust. */ |
|
|
592 | if (length < 0 || length + dataoffset > svlen) |
|
|
593 | length = svlen - dataoffset; |
|
|
594 | } |
|
|
595 | else |
|
|
596 | { |
|
|
597 | /* read: grow scalar as necessary */ |
|
|
598 | svptr = SvGROW (data, length + dataoffset); |
|
|
599 | } |
|
|
600 | |
|
|
601 | if (length < 0) |
|
|
602 | croak ("length must not be negative"); |
|
|
603 | |
|
|
604 | { |
|
|
605 | dREQ; |
|
|
606 | |
|
|
607 | req->type = ix; |
|
|
608 | req->fh = newSVsv (fh); |
|
|
609 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
610 | : IoOFP (sv_2io (fh))); |
|
|
611 | req->offset = offset; |
|
|
612 | req->length = length; |
|
|
613 | req->data = SvREFCNT_inc (data); |
|
|
614 | req->dataptr = (char *)svptr + dataoffset; |
|
|
615 | req->callback = SvREFCNT_inc (callback); |
|
|
616 | |
|
|
617 | send_req (req); |
|
|
618 | } |
|
|
619 | } |
493 | |
620 | |
494 | void |
621 | void |
495 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
622 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
496 | InputStream fh |
623 | SV * fh |
497 | UV offset |
624 | UV offset |
498 | IV length |
625 | IV length |
499 | SV * callback |
626 | SV * callback |
500 | PROTOTYPE: $$$;$ |
627 | PROTOTYPE: $$$;$ |
501 | CODE: |
628 | CODE: |
502 | { |
629 | { |
503 | aio_req req; |
630 | dREQ; |
504 | |
|
|
505 | if (length < 0) |
|
|
506 | croak ("length must not be negative"); |
|
|
507 | |
|
|
508 | Newz (0, req, 1, aio_cb); |
|
|
509 | |
|
|
510 | if (!req) |
|
|
511 | croak ("out of memory during aio_req allocation"); |
|
|
512 | |
631 | |
513 | req->type = REQ_READAHEAD; |
632 | req->type = REQ_READAHEAD; |
|
|
633 | req->fh = newSVsv (fh); |
514 | req->fd = PerlIO_fileno (fh); |
634 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
515 | req->offset = offset; |
635 | req->offset = offset; |
516 | req->length = length; |
636 | req->length = length; |
517 | req->callback = SvREFCNT_inc (callback); |
|
|
518 | |
637 | |
519 | send_req (req); |
638 | send_req (req); |
520 | } |
639 | } |
521 | |
640 | |
522 | void |
641 | void |
… | |
… | |
526 | ALIAS: |
645 | ALIAS: |
527 | aio_stat = REQ_STAT |
646 | aio_stat = REQ_STAT |
528 | aio_lstat = REQ_LSTAT |
647 | aio_lstat = REQ_LSTAT |
529 | CODE: |
648 | CODE: |
530 | { |
649 | { |
531 | aio_req req; |
650 | dREQ; |
532 | |
|
|
533 | Newz (0, req, 1, aio_cb); |
|
|
534 | |
|
|
535 | if (!req) |
|
|
536 | croak ("out of memory during aio_req allocation"); |
|
|
537 | |
651 | |
538 | New (0, req->statdata, 1, Stat_t); |
652 | New (0, req->statdata, 1, Stat_t); |
539 | |
|
|
540 | if (!req->statdata) |
653 | if (!req->statdata) |
541 | croak ("out of memory during aio_req->statdata allocation"); |
654 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
542 | |
655 | |
543 | if (SvPOK (fh_or_path)) |
656 | if (SvPOK (fh_or_path)) |
544 | { |
657 | { |
545 | req->type = ix; |
658 | req->type = ix; |
546 | req->data = newSVsv (fh_or_path); |
659 | req->data = newSVsv (fh_or_path); |
547 | req->dataptr = SvPV_nolen (req->data); |
660 | req->dataptr = SvPVbyte_nolen (req->data); |
548 | } |
661 | } |
549 | else |
662 | else |
550 | { |
663 | { |
551 | req->type = REQ_FSTAT; |
664 | req->type = REQ_FSTAT; |
|
|
665 | req->fh = newSVsv (fh_or_path); |
552 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
553 | } |
667 | } |
554 | |
|
|
555 | req->callback = SvREFCNT_inc (callback); |
|
|
556 | |
668 | |
557 | send_req (req); |
669 | send_req (req); |
558 | } |
670 | } |
559 | |
671 | |
560 | void |
672 | void |
561 | aio_unlink(pathname,callback=&PL_sv_undef) |
673 | aio_unlink(pathname,callback=&PL_sv_undef) |
562 | SV * pathname |
674 | SV * pathname |
563 | SV * callback |
675 | SV * callback |
|
|
676 | ALIAS: |
|
|
677 | aio_unlink = REQ_UNLINK |
|
|
678 | aio_rmdir = REQ_RMDIR |
564 | CODE: |
679 | CODE: |
565 | { |
680 | { |
566 | aio_req req; |
681 | dREQ; |
567 | |
682 | |
568 | Newz (0, req, 1, aio_cb); |
683 | req->type = ix; |
|
|
684 | req->data = newSVsv (pathname); |
|
|
685 | req->dataptr = SvPVbyte_nolen (req->data); |
569 | |
686 | |
570 | if (!req) |
687 | send_req (req); |
571 | croak ("out of memory during aio_req allocation"); |
688 | } |
|
|
689 | |
|
|
690 | void |
|
|
691 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
|
|
692 | SV * oldpath |
|
|
693 | SV * newpath |
|
|
694 | SV * callback |
|
|
695 | CODE: |
|
|
696 | { |
|
|
697 | dREQ; |
572 | |
698 | |
573 | req->type = REQ_UNLINK; |
699 | req->type = REQ_SYMLINK; |
|
|
700 | req->fh = newSVsv (oldpath); |
|
|
701 | req->data2ptr = SvPVbyte_nolen (req->fh); |
574 | req->data = newSVsv (pathname); |
702 | req->data = newSVsv (newpath); |
575 | req->dataptr = SvPV_nolen (req->data); |
703 | req->dataptr = SvPVbyte_nolen (req->data); |
576 | req->callback = SvREFCNT_inc (callback); |
|
|
577 | |
704 | |
578 | send_req (req); |
705 | send_req (req); |
579 | } |
706 | } |
580 | |
707 | |
581 | void |
708 | void |