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 | |
… | |
… | |
83 | static int |
86 | static int |
84 | poll_cb () |
87 | poll_cb () |
85 | { |
88 | { |
86 | dSP; |
89 | dSP; |
87 | int count = 0; |
90 | int count = 0; |
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91 | int do_croak = 0; |
88 | aio_req req, prv; |
92 | aio_req req, prv; |
89 | |
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90 | static int rl;//D |
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91 | //printf ("%d ENTER\n", ++rl);//D |
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92 | |
93 | |
93 | pthread_mutex_lock (&reslock); |
94 | pthread_mutex_lock (&reslock); |
94 | |
95 | |
95 | { |
96 | { |
96 | /* read any signals sent by the worker threads */ |
97 | /* read any signals sent by the worker threads */ |
97 | char buf [32]; |
98 | char buf [32]; |
98 | while (read (respipe [0], buf, 32) > 0) |
99 | while (read (respipe [0], buf, 32) == 32) |
99 | ; |
100 | ; |
100 | } |
101 | } |
101 | |
102 | |
102 | req = ress; |
103 | req = ress; |
103 | ress = rese = 0; |
104 | ress = rese = 0; |
… | |
… | |
105 | pthread_mutex_unlock (&reslock); |
106 | pthread_mutex_unlock (&reslock); |
106 | |
107 | |
107 | while (req) |
108 | while (req) |
108 | { |
109 | { |
109 | nreqs--; |
110 | nreqs--; |
110 | //printf ("%d count %d %p->%p\n", rl, count, req, req->next);//D |
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111 | |
111 | |
112 | if (req->type == REQ_QUIT) |
112 | if (req->type == REQ_QUIT) |
113 | started--; |
113 | started--; |
114 | else |
114 | else |
115 | { |
115 | { |
… | |
… | |
121 | + req->result > 0 ? req->result : 0); |
121 | + req->result > 0 ? req->result : 0); |
122 | |
122 | |
123 | if (req->data) |
123 | if (req->data) |
124 | SvREFCNT_dec (req->data); |
124 | SvREFCNT_dec (req->data); |
125 | |
125 | |
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126 | if (req->fh) |
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127 | SvREFCNT_dec (req->fh); |
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128 | |
126 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
129 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
127 | { |
130 | { |
128 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
131 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
129 | PL_laststatval = req->result; |
132 | PL_laststatval = req->result; |
130 | PL_statcache = *(req->statdata); |
133 | PL_statcache = *(req->statdata); |
131 | |
134 | |
132 | Safefree (req->statdata); |
135 | Safefree (req->statdata); |
133 | } |
136 | } |
134 | |
137 | |
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138 | ENTER; |
135 | PUSHMARK (SP); |
139 | PUSHMARK (SP); |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
140 | XPUSHs (sv_2mortal (newSViv (req->result))); |
137 | |
141 | |
138 | if (req->type == REQ_OPEN) |
142 | if (req->type == REQ_OPEN) |
139 | { |
143 | { |
… | |
… | |
142 | |
146 | |
143 | PUTBACK; |
147 | PUTBACK; |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
148 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
145 | SPAGAIN; |
149 | SPAGAIN; |
146 | |
150 | |
147 | fh = POPs; |
151 | fh = SvREFCNT_inc (POPs); |
148 | |
152 | |
149 | PUSHMARK (SP); |
153 | PUSHMARK (SP); |
150 | XPUSHs (fh); |
154 | XPUSHs (sv_2mortal (fh)); |
151 | } |
155 | } |
152 | |
156 | |
153 | if (SvOK (req->callback)) |
157 | if (SvOK (req->callback)) |
154 | { |
158 | { |
155 | PUTBACK; |
159 | PUTBACK; |
156 | call_sv (req->callback, G_VOID | G_EVAL); |
160 | call_sv (req->callback, G_VOID | G_EVAL); |
157 | SPAGAIN; |
161 | SPAGAIN; |
158 | } |
162 | } |
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163 | |
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164 | do_croak = SvTRUE (ERRSV); |
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165 | |
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166 | LEAVE; |
159 | |
167 | |
160 | if (req->callback) |
168 | if (req->callback) |
161 | SvREFCNT_dec (req->callback); |
169 | SvREFCNT_dec (req->callback); |
162 | |
170 | |
163 | errno = errorno; |
171 | errno = errorno; |
… | |
… | |
166 | |
174 | |
167 | prv = req; |
175 | prv = req; |
168 | req = req->next; |
176 | req = req->next; |
169 | Safefree (prv); |
177 | Safefree (prv); |
170 | |
178 | |
171 | /* TODO: croak on errors? */ |
179 | if (do_croak) |
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180 | croak (0); |
172 | } |
181 | } |
173 | |
182 | |
174 | //printf ("%d LEAVE %p %p\n", rl--, ress, rese);//D |
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175 | return count; |
183 | return count; |
176 | } |
184 | } |
177 | |
185 | |
178 | static void *aio_proc(void *arg); |
186 | static void *aio_proc(void *arg); |
179 | |
187 | |
… | |
… | |
232 | req->type = REQ_QUIT; |
240 | req->type = REQ_QUIT; |
233 | |
241 | |
234 | send_req (req); |
242 | send_req (req); |
235 | } |
243 | } |
236 | |
244 | |
237 | static void |
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238 | read_write (int dowrite, int fd, off_t offset, size_t length, |
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239 | SV *data, STRLEN dataoffset, SV *callback) |
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240 | { |
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241 | aio_req req; |
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242 | STRLEN svlen; |
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243 | char *svptr = SvPV (data, svlen); |
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244 | |
245 | |
245 | SvUPGRADE (data, SVt_PV); |
246 | static void min_parallel (int nthreads) |
246 | SvPOK_on (data); |
247 | { |
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248 | while (nthreads > started) |
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249 | start_thread (); |
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250 | } |
247 | |
251 | |
248 | if (dataoffset < 0) |
252 | static void max_parallel (int nthreads) |
249 | dataoffset += svlen; |
253 | { |
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254 | int cur = started; |
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255 | while (cur > nthreads) |
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256 | { |
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257 | end_thread (); |
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258 | cur--; |
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259 | } |
250 | |
260 | |
251 | if (dataoffset < 0 || dataoffset > svlen) |
261 | while (started > nthreads) |
252 | croak ("data offset outside of string"); |
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253 | |
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254 | if (dowrite) |
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255 | { |
262 | { |
256 | /* write: check length and adjust. */ |
263 | poll_wait (); |
257 | if (length < 0 || length + dataoffset > svlen) |
264 | poll_cb (); |
258 | length = svlen - dataoffset; |
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259 | } |
265 | } |
260 | else |
266 | } |
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267 | |
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268 | static int fork_started; |
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269 | |
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270 | static void atfork_prepare (void) |
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271 | { |
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272 | pthread_mutex_lock (&frklock); |
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273 | |
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274 | fork_started = started; |
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275 | |
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276 | for (;;) { |
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277 | while (nreqs) |
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278 | { |
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279 | poll_wait (); |
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280 | poll_cb (); |
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281 | } |
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282 | |
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283 | max_parallel (0); |
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284 | |
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285 | pthread_mutex_lock (&reqlock); |
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286 | |
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287 | if (!nreqs && !started) |
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288 | break; |
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289 | |
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290 | pthread_mutex_unlock (&reqlock); |
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291 | |
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292 | min_parallel (fork_started); |
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293 | } |
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294 | |
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295 | pthread_mutex_lock (&reslock); |
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296 | |
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297 | assert (!started); |
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298 | assert (!nreqs); |
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299 | assert (!reqs && !reqe); |
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300 | assert (!ress && !rese); |
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301 | } |
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302 | |
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303 | static void atfork_parent (void) |
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304 | { |
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305 | pthread_mutex_unlock (&reslock); |
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306 | min_parallel (fork_started); |
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307 | pthread_mutex_unlock (&reqlock); |
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308 | pthread_mutex_unlock (&frklock); |
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309 | } |
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310 | |
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311 | static void atfork_child (void) |
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312 | { |
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313 | reqs = reqe = 0; |
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314 | |
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315 | atfork_parent (); |
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316 | } |
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317 | |
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318 | /*****************************************************************************/ |
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319 | /* work around various missing functions */ |
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320 | |
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321 | #if !HAVE_PREADWRITE |
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322 | # define pread aio_pread |
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323 | # define pwrite aio_pwrite |
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324 | |
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325 | /* |
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326 | * make our pread/pwrite safe against themselves, but not against |
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327 | * normal read/write by using a mutex. slows down execution a lot, |
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328 | * but that's your problem, not mine. |
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329 | */ |
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330 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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331 | |
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332 | static ssize_t |
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333 | pread (int fd, void *buf, size_t count, off_t offset) |
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334 | { |
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335 | ssize_t res; |
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336 | off_t ooffset; |
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337 | |
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338 | pthread_mutex_lock (&iolock); |
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339 | ooffset = lseek (fd, 0, SEEK_CUR); |
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340 | lseek (fd, offset, SEEK_SET); |
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341 | res = read (fd, buf, count); |
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342 | lseek (fd, ooffset, SEEK_SET); |
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343 | pthread_mutex_unlock (&iolock); |
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344 | |
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345 | return res; |
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346 | } |
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347 | |
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348 | static ssize_t |
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349 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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350 | { |
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351 | ssize_t res; |
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352 | off_t ooffset; |
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353 | |
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354 | pthread_mutex_lock (&iolock); |
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355 | ooffset = lseek (fd, 0, SEEK_CUR); |
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356 | lseek (fd, offset, SEEK_SET); |
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357 | res = write (fd, buf, count); |
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358 | lseek (fd, offset, SEEK_SET); |
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359 | pthread_mutex_unlock (&iolock); |
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360 | |
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361 | return res; |
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362 | } |
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363 | #endif |
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364 | |
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365 | #if !HAVE_FDATASYNC |
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366 | # define fdatasync fsync |
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367 | #endif |
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368 | |
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369 | #if !HAVE_READAHEAD |
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370 | # define readahead aio_readahead |
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371 | |
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372 | static char readahead_buf[4096]; |
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373 | |
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374 | static ssize_t |
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375 | readahead (int fd, off_t offset, size_t count) |
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376 | { |
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377 | while (count > 0) |
261 | { |
378 | { |
262 | /* read: grow scalar as necessary */ |
379 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
263 | svptr = SvGROW (data, length + dataoffset); |
380 | |
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381 | pread (fd, readahead_buf, len, offset); |
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382 | offset += len; |
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383 | count -= len; |
264 | } |
384 | } |
265 | |
385 | |
266 | if (length < 0) |
386 | errno = 0; |
267 | croak ("length must not be negative"); |
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268 | |
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269 | Newz (0, req, 1, aio_cb); |
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270 | |
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271 | if (!req) |
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272 | croak ("out of memory during aio_req allocation"); |
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273 | |
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274 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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275 | req->fd = fd; |
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276 | req->offset = offset; |
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277 | req->length = length; |
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278 | req->data = SvREFCNT_inc (data); |
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279 | req->dataptr = (char *)svptr + dataoffset; |
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280 | req->callback = SvREFCNT_inc (callback); |
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281 | |
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282 | send_req (req); |
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283 | } |
387 | } |
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388 | #endif |
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389 | |
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390 | /*****************************************************************************/ |
284 | |
391 | |
285 | static void * |
392 | static void * |
286 | aio_proc (void *thr_arg) |
393 | aio_proc (void *thr_arg) |
287 | { |
394 | { |
288 | aio_req req; |
395 | aio_req req; |
… | |
… | |
316 | |
423 | |
317 | switch (type) |
424 | switch (type) |
318 | { |
425 | { |
319 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
426 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
320 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
427 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
321 | #if SYS_readahead |
428 | |
322 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
429 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
323 | #else |
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324 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
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325 | #endif |
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326 | |
430 | |
327 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
431 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
328 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
432 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
329 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
433 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
330 | |
434 | |
331 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
435 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
332 | case REQ_CLOSE: req->result = close (req->fd); break; |
436 | case REQ_CLOSE: req->result = close (req->fd); break; |
333 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
437 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
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438 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
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439 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
334 | |
440 | |
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441 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
335 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
442 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
336 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
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337 | |
443 | |
338 | case REQ_QUIT: |
444 | case REQ_QUIT: |
339 | break; |
445 | break; |
340 | |
446 | |
341 | default: |
447 | default: |
… | |
… | |
367 | while (type != REQ_QUIT); |
473 | while (type != REQ_QUIT); |
368 | |
474 | |
369 | return 0; |
475 | return 0; |
370 | } |
476 | } |
371 | |
477 | |
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478 | #define dREQ \ |
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479 | aio_req req; \ |
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480 | \ |
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481 | if (SvOK (callback) && !SvROK (callback)) \ |
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482 | croak ("clalback must be undef or of reference type"); \ |
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483 | \ |
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484 | Newz (0, req, 1, aio_cb); \ |
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485 | if (!req) \ |
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486 | croak ("out of memory during aio_req allocation"); \ |
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487 | \ |
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488 | req->callback = SvREFCNT_inc (callback); |
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489 | |
372 | MODULE = IO::AIO PACKAGE = IO::AIO |
490 | MODULE = IO::AIO PACKAGE = IO::AIO |
373 | |
491 | |
374 | PROTOTYPES: ENABLE |
492 | PROTOTYPES: ENABLE |
375 | |
493 | |
376 | BOOT: |
494 | BOOT: |
… | |
… | |
381 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
499 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
382 | croak ("cannot set result pipe to nonblocking mode"); |
500 | croak ("cannot set result pipe to nonblocking mode"); |
383 | |
501 | |
384 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
502 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
385 | croak ("cannot set result pipe to nonblocking mode"); |
503 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
504 | |
|
|
505 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
386 | } |
506 | } |
387 | |
507 | |
388 | void |
508 | void |
389 | min_parallel(nthreads) |
509 | min_parallel(nthreads) |
390 | int nthreads |
510 | int nthreads |
391 | PROTOTYPE: $ |
511 | PROTOTYPE: $ |
392 | CODE: |
|
|
393 | while (nthreads > started) |
|
|
394 | start_thread (); |
|
|
395 | |
512 | |
396 | void |
513 | void |
397 | max_parallel(nthreads) |
514 | max_parallel(nthreads) |
398 | int nthreads |
515 | int nthreads |
399 | PROTOTYPE: $ |
516 | PROTOTYPE: $ |
400 | CODE: |
|
|
401 | { |
|
|
402 | int cur = started; |
|
|
403 | while (cur > nthreads) |
|
|
404 | { |
|
|
405 | end_thread (); |
|
|
406 | cur--; |
|
|
407 | } |
|
|
408 | |
|
|
409 | while (started > nthreads) |
|
|
410 | { |
|
|
411 | poll_wait (); |
|
|
412 | poll_cb (); |
|
|
413 | } |
|
|
414 | } |
|
|
415 | |
517 | |
416 | int |
518 | int |
417 | max_outstanding(nreqs) |
519 | max_outstanding(nreqs) |
418 | int nreqs |
520 | int nreqs |
419 | PROTOTYPE: $ |
521 | PROTOTYPE: $ |
… | |
… | |
428 | int mode |
530 | int mode |
429 | SV * callback |
531 | SV * callback |
430 | PROTOTYPE: $$$;$ |
532 | PROTOTYPE: $$$;$ |
431 | CODE: |
533 | CODE: |
432 | { |
534 | { |
433 | aio_req req; |
535 | dREQ; |
434 | |
|
|
435 | Newz (0, req, 1, aio_cb); |
|
|
436 | |
|
|
437 | if (!req) |
|
|
438 | croak ("out of memory during aio_req allocation"); |
|
|
439 | |
536 | |
440 | req->type = REQ_OPEN; |
537 | req->type = REQ_OPEN; |
441 | req->data = newSVsv (pathname); |
538 | req->data = newSVsv (pathname); |
442 | req->dataptr = SvPV_nolen (req->data); |
539 | req->dataptr = SvPVbyte_nolen (req->data); |
443 | req->fd = flags; |
540 | req->fd = flags; |
444 | req->mode = mode; |
541 | req->mode = mode; |
445 | req->callback = SvREFCNT_inc (callback); |
|
|
446 | |
542 | |
447 | send_req (req); |
543 | send_req (req); |
448 | } |
544 | } |
449 | |
545 | |
450 | void |
546 | void |
451 | aio_close(fh,callback=&PL_sv_undef) |
547 | aio_close(fh,callback=&PL_sv_undef) |
452 | InputStream fh |
548 | SV * fh |
453 | SV * callback |
549 | SV * callback |
454 | PROTOTYPE: $;$ |
550 | PROTOTYPE: $;$ |
455 | ALIAS: |
551 | ALIAS: |
456 | aio_close = REQ_CLOSE |
552 | aio_close = REQ_CLOSE |
457 | aio_fsync = REQ_FSYNC |
553 | aio_fsync = REQ_FSYNC |
458 | aio_fdatasync = REQ_FDATASYNC |
554 | aio_fdatasync = REQ_FDATASYNC |
459 | CODE: |
555 | CODE: |
460 | { |
556 | { |
461 | aio_req req; |
557 | dREQ; |
462 | |
|
|
463 | Newz (0, req, 1, aio_cb); |
|
|
464 | |
|
|
465 | if (!req) |
|
|
466 | croak ("out of memory during aio_req allocation"); |
|
|
467 | |
558 | |
468 | req->type = ix; |
559 | req->type = ix; |
|
|
560 | req->fh = newSVsv (fh); |
469 | req->fd = PerlIO_fileno (fh); |
561 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
470 | req->callback = SvREFCNT_inc (callback); |
|
|
471 | |
562 | |
472 | send_req (req); |
563 | send_req (req); |
473 | } |
564 | } |
474 | |
565 | |
475 | void |
566 | void |
476 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
567 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
477 | InputStream fh |
568 | SV * fh |
478 | UV offset |
569 | UV offset |
479 | IV length |
570 | IV length |
480 | SV * data |
571 | SV * data |
481 | IV dataoffset |
572 | IV dataoffset |
482 | SV * callback |
573 | SV * callback |
|
|
574 | ALIAS: |
|
|
575 | aio_read = REQ_READ |
|
|
576 | aio_write = REQ_WRITE |
483 | PROTOTYPE: $$$$$;$ |
577 | PROTOTYPE: $$$$$;$ |
484 | CODE: |
578 | CODE: |
485 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
579 | { |
|
|
580 | aio_req req; |
|
|
581 | STRLEN svlen; |
|
|
582 | char *svptr = SvPVbyte (data, svlen); |
486 | |
583 | |
487 | void |
584 | SvUPGRADE (data, SVt_PV); |
488 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
585 | SvPOK_on (data); |
489 | OutputStream fh |
586 | |
490 | UV offset |
587 | if (dataoffset < 0) |
491 | IV length |
588 | dataoffset += svlen; |
492 | SV * data |
589 | |
493 | IV dataoffset |
590 | if (dataoffset < 0 || dataoffset > svlen) |
494 | SV * callback |
591 | croak ("data offset outside of string"); |
495 | PROTOTYPE: $$$$$;$ |
592 | |
496 | CODE: |
593 | if (ix == REQ_WRITE) |
497 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
594 | { |
|
|
595 | /* write: check length and adjust. */ |
|
|
596 | if (length < 0 || length + dataoffset > svlen) |
|
|
597 | length = svlen - dataoffset; |
|
|
598 | } |
|
|
599 | else |
|
|
600 | { |
|
|
601 | /* read: grow scalar as necessary */ |
|
|
602 | svptr = SvGROW (data, length + dataoffset); |
|
|
603 | } |
|
|
604 | |
|
|
605 | if (length < 0) |
|
|
606 | croak ("length must not be negative"); |
|
|
607 | |
|
|
608 | { |
|
|
609 | dREQ; |
|
|
610 | |
|
|
611 | req->type = ix; |
|
|
612 | req->fh = newSVsv (fh); |
|
|
613 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
614 | : IoOFP (sv_2io (fh))); |
|
|
615 | req->offset = offset; |
|
|
616 | req->length = length; |
|
|
617 | req->data = SvREFCNT_inc (data); |
|
|
618 | req->dataptr = (char *)svptr + dataoffset; |
|
|
619 | req->callback = SvREFCNT_inc (callback); |
|
|
620 | |
|
|
621 | send_req (req); |
|
|
622 | } |
|
|
623 | } |
498 | |
624 | |
499 | void |
625 | void |
500 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
626 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
501 | InputStream fh |
627 | SV * fh |
502 | UV offset |
628 | UV offset |
503 | IV length |
629 | IV length |
504 | SV * callback |
630 | SV * callback |
505 | PROTOTYPE: $$$;$ |
631 | PROTOTYPE: $$$;$ |
506 | CODE: |
632 | CODE: |
507 | { |
633 | { |
508 | aio_req req; |
634 | dREQ; |
509 | |
|
|
510 | if (length < 0) |
|
|
511 | croak ("length must not be negative"); |
|
|
512 | |
|
|
513 | Newz (0, req, 1, aio_cb); |
|
|
514 | |
|
|
515 | if (!req) |
|
|
516 | croak ("out of memory during aio_req allocation"); |
|
|
517 | |
635 | |
518 | req->type = REQ_READAHEAD; |
636 | req->type = REQ_READAHEAD; |
|
|
637 | req->fh = newSVsv (fh); |
519 | req->fd = PerlIO_fileno (fh); |
638 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
520 | req->offset = offset; |
639 | req->offset = offset; |
521 | req->length = length; |
640 | req->length = length; |
522 | req->callback = SvREFCNT_inc (callback); |
|
|
523 | |
641 | |
524 | send_req (req); |
642 | send_req (req); |
525 | } |
643 | } |
526 | |
644 | |
527 | void |
645 | void |
… | |
… | |
531 | ALIAS: |
649 | ALIAS: |
532 | aio_stat = REQ_STAT |
650 | aio_stat = REQ_STAT |
533 | aio_lstat = REQ_LSTAT |
651 | aio_lstat = REQ_LSTAT |
534 | CODE: |
652 | CODE: |
535 | { |
653 | { |
536 | aio_req req; |
654 | dREQ; |
537 | |
|
|
538 | Newz (0, req, 1, aio_cb); |
|
|
539 | |
|
|
540 | if (!req) |
|
|
541 | croak ("out of memory during aio_req allocation"); |
|
|
542 | |
655 | |
543 | New (0, req->statdata, 1, Stat_t); |
656 | New (0, req->statdata, 1, Stat_t); |
544 | |
|
|
545 | if (!req->statdata) |
657 | if (!req->statdata) |
546 | croak ("out of memory during aio_req->statdata allocation"); |
658 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
547 | |
659 | |
548 | if (SvPOK (fh_or_path)) |
660 | if (SvPOK (fh_or_path)) |
549 | { |
661 | { |
550 | req->type = ix; |
662 | req->type = ix; |
551 | req->data = newSVsv (fh_or_path); |
663 | req->data = newSVsv (fh_or_path); |
552 | req->dataptr = SvPV_nolen (req->data); |
664 | req->dataptr = SvPVbyte_nolen (req->data); |
553 | } |
665 | } |
554 | else |
666 | else |
555 | { |
667 | { |
556 | req->type = REQ_FSTAT; |
668 | req->type = REQ_FSTAT; |
|
|
669 | req->fh = newSVsv (fh_or_path); |
557 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
670 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
558 | } |
671 | } |
559 | |
|
|
560 | req->callback = SvREFCNT_inc (callback); |
|
|
561 | |
672 | |
562 | send_req (req); |
673 | send_req (req); |
563 | } |
674 | } |
564 | |
675 | |
565 | void |
676 | void |
566 | aio_unlink(pathname,callback=&PL_sv_undef) |
677 | aio_unlink(pathname,callback=&PL_sv_undef) |
567 | SV * pathname |
678 | SV * pathname |
568 | SV * callback |
679 | SV * callback |
|
|
680 | ALIAS: |
|
|
681 | aio_unlink = REQ_UNLINK |
|
|
682 | aio_rmdir = REQ_RMDIR |
569 | CODE: |
683 | CODE: |
570 | { |
684 | { |
571 | aio_req req; |
685 | dREQ; |
572 | |
686 | |
573 | Newz (0, req, 1, aio_cb); |
687 | req->type = ix; |
|
|
688 | req->data = newSVsv (pathname); |
|
|
689 | req->dataptr = SvPVbyte_nolen (req->data); |
574 | |
690 | |
575 | if (!req) |
691 | send_req (req); |
576 | croak ("out of memory during aio_req allocation"); |
692 | } |
|
|
693 | |
|
|
694 | void |
|
|
695 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
|
|
696 | SV * oldpath |
|
|
697 | SV * newpath |
|
|
698 | SV * callback |
|
|
699 | CODE: |
|
|
700 | { |
|
|
701 | dREQ; |
577 | |
702 | |
578 | req->type = REQ_UNLINK; |
703 | req->type = REQ_SYMLINK; |
|
|
704 | req->fh = newSVsv (oldpath); |
|
|
705 | req->data2ptr = SvPVbyte_nolen (req->fh); |
579 | req->data = newSVsv (pathname); |
706 | req->data = newSVsv (newpath); |
580 | req->dataptr = SvPV_nolen (req->data); |
707 | req->dataptr = SvPVbyte_nolen (req->data); |
581 | req->callback = SvREFCNT_inc (callback); |
|
|
582 | |
708 | |
583 | send_req (req); |
709 | send_req (req); |
584 | } |
710 | } |
585 | |
711 | |
586 | void |
712 | void |