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1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
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3 | |
1 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
2 | #include "perl.h" |
5 | #include "perl.h" |
3 | #include "XSUB.h" |
6 | #include "XSUB.h" |
4 | |
7 | |
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8 | #include "autoconf/config.h" |
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9 | |
5 | #include <sys/types.h> |
10 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
11 | #include <sys/stat.h> |
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12 | |
7 | #include <unistd.h> |
13 | #include <unistd.h> |
8 | #include <fcntl.h> |
14 | #include <fcntl.h> |
9 | #include <signal.h> |
15 | #include <signal.h> |
10 | #include <sched.h> |
16 | #include <sched.h> |
11 | #include <endian.h> |
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12 | |
17 | |
13 | #include <pthread.h> |
18 | #include <pthread.h> |
14 | #include <sys/syscall.h> |
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15 | |
19 | |
16 | 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 ;) */ |
17 | 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 ;) */ |
18 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | |
23 | |
… | |
… | |
25 | |
29 | |
26 | enum { |
30 | enum { |
27 | REQ_QUIT, |
31 | REQ_QUIT, |
28 | REQ_OPEN, REQ_CLOSE, |
32 | REQ_OPEN, REQ_CLOSE, |
29 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
30 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
31 | 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, |
32 | }; |
38 | }; |
33 | |
39 | |
34 | typedef struct aio_cb { |
40 | typedef struct aio_cb { |
35 | struct aio_cb *volatile next; |
41 | struct aio_cb *volatile next; |
36 | |
42 | |
… | |
… | |
40 | off_t offset; |
46 | off_t offset; |
41 | size_t length; |
47 | size_t length; |
42 | ssize_t result; |
48 | ssize_t result; |
43 | mode_t mode; /* open */ |
49 | mode_t mode; /* open */ |
44 | int errorno; |
50 | int errorno; |
45 | SV *data, *callback; |
51 | SV *data, *callback, *fh; |
46 | void *dataptr; |
52 | void *dataptr, *data2ptr; |
47 | STRLEN dataoffset; |
53 | STRLEN dataoffset; |
48 | |
54 | |
49 | Stat_t *statdata; |
55 | Stat_t *statdata; |
50 | } aio_cb; |
56 | } aio_cb; |
51 | |
57 | |
52 | typedef aio_cb *aio_req; |
58 | typedef aio_cb *aio_req; |
53 | |
59 | |
54 | static int started; |
60 | static int started; |
55 | static int nreqs; |
61 | static volatile int nreqs; |
56 | static int max_outstanding = 1<<30; |
62 | static int max_outstanding = 1<<30; |
57 | static int respipe [2]; |
63 | static int respipe [2]; |
58 | |
64 | |
59 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
60 | 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; |
61 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
62 | |
69 | |
63 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
70 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
64 | static volatile aio_req ress, rese; /* queue start, queue end */ |
71 | static volatile aio_req ress, rese; /* queue start, queue end */ |
65 | |
72 | |
66 | static void |
73 | static void |
67 | poll_wait () |
74 | poll_wait () |
68 | { |
75 | { |
69 | if (!nreqs) |
76 | if (nreqs && !ress) |
70 | return; |
77 | { |
71 | |
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72 | fd_set rfd; |
78 | fd_set rfd; |
73 | FD_ZERO(&rfd); |
79 | FD_ZERO(&rfd); |
74 | FD_SET(respipe [0], &rfd); |
80 | FD_SET(respipe [0], &rfd); |
75 | |
81 | |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
82 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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83 | } |
77 | } |
84 | } |
78 | |
85 | |
79 | static int |
86 | static int |
80 | poll_cb () |
87 | poll_cb () |
81 | { |
88 | { |
82 | dSP; |
89 | dSP; |
83 | int count = 0; |
90 | int count = 0; |
84 | aio_req req; |
91 | aio_req req, prv; |
85 | |
92 | |
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93 | pthread_mutex_lock (&reslock); |
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94 | |
86 | { |
95 | { |
87 | /* read and signals sent by the worker threads */ |
96 | /* read any signals sent by the worker threads */ |
88 | char buf [32]; |
97 | char buf [32]; |
89 | while (read (respipe [0], buf, 32) > 0) |
98 | while (read (respipe [0], buf, 32) == 32) |
90 | ; |
99 | ; |
91 | } |
100 | } |
92 | |
101 | |
93 | for (;;) |
102 | req = ress; |
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103 | ress = rese = 0; |
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104 | |
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105 | pthread_mutex_unlock (&reslock); |
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106 | |
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107 | while (req) |
94 | { |
108 | { |
95 | pthread_mutex_lock (&reslock); |
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96 | |
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97 | req = ress; |
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98 | |
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99 | if (ress) |
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100 | { |
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101 | ress = ress->next; |
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102 | if (!ress) rese = 0; |
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103 | } |
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104 | |
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105 | pthread_mutex_unlock (&reslock); |
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106 | |
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107 | if (!req) |
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108 | break; |
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109 | |
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110 | nreqs--; |
109 | nreqs--; |
111 | |
110 | |
112 | if (req->type == REQ_QUIT) |
111 | if (req->type == REQ_QUIT) |
113 | started--; |
112 | started--; |
114 | else |
113 | else |
… | |
… | |
121 | + req->result > 0 ? req->result : 0); |
120 | + req->result > 0 ? req->result : 0); |
122 | |
121 | |
123 | if (req->data) |
122 | if (req->data) |
124 | SvREFCNT_dec (req->data); |
123 | SvREFCNT_dec (req->data); |
125 | |
124 | |
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125 | if (req->fh) |
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126 | SvREFCNT_dec (req->fh); |
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127 | |
126 | 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) |
127 | { |
129 | { |
128 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
130 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
129 | PL_laststatval = req->result; |
131 | PL_laststatval = req->result; |
130 | PL_statcache = *(req->statdata); |
132 | PL_statcache = *(req->statdata); |
131 | |
133 | |
132 | Safefree (req->statdata); |
134 | Safefree (req->statdata); |
133 | } |
135 | } |
134 | |
136 | |
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137 | ENTER; |
135 | PUSHMARK (SP); |
138 | PUSHMARK (SP); |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
139 | XPUSHs (sv_2mortal (newSViv (req->result))); |
137 | |
140 | |
138 | if (req->type == REQ_OPEN) |
141 | if (req->type == REQ_OPEN) |
139 | { |
142 | { |
… | |
… | |
142 | |
145 | |
143 | PUTBACK; |
146 | PUTBACK; |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
147 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
145 | SPAGAIN; |
148 | SPAGAIN; |
146 | |
149 | |
147 | fh = POPs; |
150 | fh = SvREFCNT_inc (POPs); |
148 | |
151 | |
149 | PUSHMARK (SP); |
152 | PUSHMARK (SP); |
150 | XPUSHs (fh); |
153 | XPUSHs (sv_2mortal (fh)); |
151 | } |
154 | } |
152 | |
155 | |
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156 | if (SvOK (req->callback)) |
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157 | { |
153 | PUTBACK; |
158 | PUTBACK; |
154 | call_sv (req->callback, G_VOID | G_EVAL); |
159 | call_sv (req->callback, G_VOID | G_EVAL); |
155 | SPAGAIN; |
160 | SPAGAIN; |
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161 | } |
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162 | |
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163 | LEAVE; |
156 | |
164 | |
157 | if (req->callback) |
165 | if (req->callback) |
158 | SvREFCNT_dec (req->callback); |
166 | SvREFCNT_dec (req->callback); |
159 | |
167 | |
160 | errno = errorno; |
168 | errno = errorno; |
161 | count++; |
169 | count++; |
162 | } |
170 | } |
163 | |
171 | |
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172 | prv = req; |
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173 | req = req->next; |
164 | Safefree (req); |
174 | Safefree (prv); |
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175 | |
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176 | /* TODO: croak on errors? */ |
165 | } |
177 | } |
166 | |
178 | |
167 | return count; |
179 | return count; |
168 | } |
180 | } |
169 | |
181 | |
… | |
… | |
224 | req->type = REQ_QUIT; |
236 | req->type = REQ_QUIT; |
225 | |
237 | |
226 | send_req (req); |
238 | send_req (req); |
227 | } |
239 | } |
228 | |
240 | |
229 | static void |
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230 | read_write (int dowrite, int fd, off_t offset, size_t length, |
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231 | SV *data, STRLEN dataoffset, SV *callback) |
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232 | { |
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233 | aio_req req; |
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234 | STRLEN svlen; |
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235 | char *svptr = SvPV (data, svlen); |
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236 | |
241 | |
237 | SvUPGRADE (data, SVt_PV); |
242 | static void min_parallel (int nthreads) |
238 | SvPOK_on (data); |
243 | { |
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244 | while (nthreads > started) |
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245 | start_thread (); |
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246 | } |
239 | |
247 | |
240 | if (dataoffset < 0) |
248 | static void max_parallel (int nthreads) |
241 | 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 | } |
242 | |
256 | |
243 | if (dataoffset < 0 || dataoffset > svlen) |
257 | while (started > nthreads) |
244 | croak ("data offset outside of string"); |
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245 | |
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246 | if (dowrite) |
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247 | { |
258 | { |
248 | /* write: check length and adjust. */ |
259 | poll_wait (); |
249 | if (length < 0 || length + dataoffset > svlen) |
260 | poll_cb (); |
250 | length = svlen - dataoffset; |
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251 | } |
261 | } |
252 | 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) |
253 | { |
374 | { |
254 | /* read: grow scalar as necessary */ |
375 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
255 | 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; |
256 | } |
380 | } |
257 | |
381 | |
258 | if (length < 0) |
382 | errno = 0; |
259 | croak ("length must not be negative"); |
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260 | |
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261 | Newz (0, req, 1, aio_cb); |
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262 | |
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263 | if (!req) |
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264 | croak ("out of memory during aio_req allocation"); |
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265 | |
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266 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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267 | req->fd = fd; |
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268 | req->offset = offset; |
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269 | req->length = length; |
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270 | req->data = SvREFCNT_inc (data); |
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271 | req->dataptr = (char *)svptr + dataoffset; |
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272 | req->callback = SvREFCNT_inc (callback); |
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273 | |
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274 | send_req (req); |
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275 | } |
383 | } |
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384 | #endif |
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385 | |
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386 | /*****************************************************************************/ |
276 | |
387 | |
277 | static void * |
388 | static void * |
278 | aio_proc (void *thr_arg) |
389 | aio_proc (void *thr_arg) |
279 | { |
390 | { |
280 | aio_req req; |
391 | aio_req req; |
… | |
… | |
306 | |
417 | |
307 | type = req->type; |
418 | type = req->type; |
308 | |
419 | |
309 | switch (type) |
420 | switch (type) |
310 | { |
421 | { |
311 | case REQ_READ: req->result = pread64 (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; |
312 | case REQ_WRITE: req->result = pwrite64 (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; |
313 | #if SYS_readahead |
424 | |
314 | 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; |
315 | #else |
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316 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
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317 | #endif |
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318 | |
426 | |
319 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
427 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
320 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
428 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
321 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
429 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
322 | |
430 | |
323 | 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; |
324 | case REQ_CLOSE: req->result = close (req->fd); break; |
432 | case REQ_CLOSE: req->result = close (req->fd); break; |
325 | 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; |
326 | |
436 | |
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437 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
327 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
438 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
328 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
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329 | |
439 | |
330 | case REQ_QUIT: |
440 | case REQ_QUIT: |
331 | break; |
441 | break; |
332 | |
442 | |
333 | default: |
443 | default: |
… | |
… | |
359 | while (type != REQ_QUIT); |
469 | while (type != REQ_QUIT); |
360 | |
470 | |
361 | return 0; |
471 | return 0; |
362 | } |
472 | } |
363 | |
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"); \ |
|
|
479 | \ |
|
|
480 | Newz (0, req, 1, aio_cb); \ |
|
|
481 | if (!req) \ |
|
|
482 | croak ("out of memory during aio_req allocation"); \ |
|
|
483 | \ |
|
|
484 | req->callback = SvREFCNT_inc (callback); |
|
|
485 | |
364 | MODULE = IO::AIO PACKAGE = IO::AIO |
486 | MODULE = IO::AIO PACKAGE = IO::AIO |
|
|
487 | |
|
|
488 | PROTOTYPES: ENABLE |
365 | |
489 | |
366 | BOOT: |
490 | BOOT: |
367 | { |
491 | { |
368 | if (pipe (respipe)) |
492 | if (pipe (respipe)) |
369 | croak ("unable to initialize result pipe"); |
493 | croak ("unable to initialize result pipe"); |
… | |
… | |
371 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
495 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
372 | croak ("cannot set result pipe to nonblocking mode"); |
496 | croak ("cannot set result pipe to nonblocking mode"); |
373 | |
497 | |
374 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
498 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
375 | croak ("cannot set result pipe to nonblocking mode"); |
499 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
500 | |
|
|
501 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
376 | } |
502 | } |
377 | |
503 | |
378 | void |
504 | void |
379 | min_parallel(nthreads) |
505 | min_parallel(nthreads) |
380 | int nthreads |
506 | int nthreads |
381 | PROTOTYPE: $ |
507 | PROTOTYPE: $ |
382 | CODE: |
|
|
383 | while (nthreads > started) |
|
|
384 | start_thread (); |
|
|
385 | |
508 | |
386 | void |
509 | void |
387 | max_parallel(nthreads) |
510 | max_parallel(nthreads) |
388 | int nthreads |
511 | int nthreads |
389 | PROTOTYPE: $ |
512 | PROTOTYPE: $ |
390 | CODE: |
|
|
391 | { |
|
|
392 | int cur = started; |
|
|
393 | while (cur > nthreads) |
|
|
394 | { |
|
|
395 | end_thread (); |
|
|
396 | cur--; |
|
|
397 | } |
|
|
398 | |
|
|
399 | while (started > nthreads) |
|
|
400 | { |
|
|
401 | poll_wait (); |
|
|
402 | poll_cb (); |
|
|
403 | } |
|
|
404 | } |
|
|
405 | |
513 | |
406 | int |
514 | int |
407 | max_outstanding(nreqs) |
515 | max_outstanding(nreqs) |
408 | int nreqs |
516 | int nreqs |
409 | PROTOTYPE: $ |
517 | PROTOTYPE: $ |
410 | CODE: |
518 | CODE: |
411 | RETVAL = max_outstanding; |
519 | RETVAL = max_outstanding; |
412 | max_outstanding = nreqs; |
520 | max_outstanding = nreqs; |
413 | |
521 | |
414 | void |
522 | void |
415 | aio_open(pathname,flags,mode,callback) |
523 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
416 | SV * pathname |
524 | SV * pathname |
417 | int flags |
525 | int flags |
418 | int mode |
526 | int mode |
419 | SV * callback |
527 | SV * callback |
420 | PROTOTYPE: $$$$ |
528 | PROTOTYPE: $$$;$ |
421 | CODE: |
529 | CODE: |
422 | { |
530 | { |
423 | aio_req req; |
531 | dREQ; |
424 | |
|
|
425 | Newz (0, req, 1, aio_cb); |
|
|
426 | |
|
|
427 | if (!req) |
|
|
428 | croak ("out of memory during aio_req allocation"); |
|
|
429 | |
532 | |
430 | req->type = REQ_OPEN; |
533 | req->type = REQ_OPEN; |
431 | req->data = newSVsv (pathname); |
534 | req->data = newSVsv (pathname); |
432 | req->dataptr = SvPV_nolen (req->data); |
535 | req->dataptr = SvPVbyte_nolen (req->data); |
433 | req->fd = flags; |
536 | req->fd = flags; |
434 | req->mode = mode; |
537 | req->mode = mode; |
435 | req->callback = SvREFCNT_inc (callback); |
|
|
436 | |
538 | |
437 | send_req (req); |
539 | send_req (req); |
438 | } |
540 | } |
439 | |
541 | |
440 | void |
542 | void |
441 | aio_close(fh,callback) |
543 | aio_close(fh,callback=&PL_sv_undef) |
442 | InputStream fh |
544 | SV * fh |
443 | SV * callback |
545 | SV * callback |
444 | PROTOTYPE: $$ |
546 | PROTOTYPE: $;$ |
445 | ALIAS: |
547 | ALIAS: |
446 | aio_close = REQ_CLOSE |
548 | aio_close = REQ_CLOSE |
447 | aio_fsync = REQ_FSYNC |
549 | aio_fsync = REQ_FSYNC |
448 | aio_fdatasync = REQ_FDATASYNC |
550 | aio_fdatasync = REQ_FDATASYNC |
449 | CODE: |
551 | CODE: |
450 | { |
552 | { |
|
|
553 | dREQ; |
|
|
554 | |
|
|
555 | req->type = ix; |
|
|
556 | req->fh = newSVsv (fh); |
|
|
557 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
558 | |
|
|
559 | send_req (req); |
|
|
560 | } |
|
|
561 | |
|
|
562 | void |
|
|
563 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
564 | SV * fh |
|
|
565 | UV offset |
|
|
566 | IV length |
|
|
567 | SV * data |
|
|
568 | IV dataoffset |
|
|
569 | SV * callback |
|
|
570 | ALIAS: |
|
|
571 | aio_read = REQ_READ |
|
|
572 | aio_write = REQ_WRITE |
|
|
573 | PROTOTYPE: $$$$$;$ |
|
|
574 | CODE: |
|
|
575 | { |
451 | aio_req req; |
576 | aio_req req; |
|
|
577 | STRLEN svlen; |
|
|
578 | char *svptr = SvPVbyte (data, svlen); |
452 | |
579 | |
453 | Newz (0, req, 1, aio_cb); |
580 | SvUPGRADE (data, SVt_PV); |
|
|
581 | SvPOK_on (data); |
454 | |
582 | |
455 | if (!req) |
583 | if (dataoffset < 0) |
456 | croak ("out of memory during aio_req allocation"); |
584 | dataoffset += svlen; |
457 | |
585 | |
458 | req->type = ix; |
586 | if (dataoffset < 0 || dataoffset > svlen) |
459 | req->fd = PerlIO_fileno (fh); |
587 | croak ("data offset outside of string"); |
460 | req->callback = SvREFCNT_inc (callback); |
|
|
461 | |
588 | |
462 | send_req (req); |
589 | if (ix == REQ_WRITE) |
463 | } |
590 | { |
464 | |
591 | /* write: check length and adjust. */ |
465 | void |
592 | if (length < 0 || length + dataoffset > svlen) |
466 | aio_read(fh,offset,length,data,dataoffset,callback) |
593 | length = svlen - dataoffset; |
467 | InputStream fh |
594 | } |
468 | UV offset |
595 | else |
469 | IV length |
596 | { |
470 | SV * data |
597 | /* read: grow scalar as necessary */ |
471 | IV dataoffset |
598 | svptr = SvGROW (data, length + dataoffset); |
472 | SV * callback |
599 | } |
473 | PROTOTYPE: $$$$$$ |
|
|
474 | CODE: |
|
|
475 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
476 | |
|
|
477 | void |
|
|
478 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
479 | OutputStream fh |
|
|
480 | UV offset |
|
|
481 | IV length |
|
|
482 | SV * data |
|
|
483 | IV dataoffset |
|
|
484 | SV * callback |
|
|
485 | PROTOTYPE: $$$$$$ |
|
|
486 | CODE: |
|
|
487 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
488 | |
|
|
489 | void |
|
|
490 | aio_readahead(fh,offset,length,callback) |
|
|
491 | InputStream fh |
|
|
492 | UV offset |
|
|
493 | IV length |
|
|
494 | SV * callback |
|
|
495 | PROTOTYPE: $$$$ |
|
|
496 | CODE: |
|
|
497 | { |
|
|
498 | aio_req req; |
|
|
499 | |
600 | |
500 | if (length < 0) |
601 | if (length < 0) |
501 | croak ("length must not be negative"); |
602 | croak ("length must not be negative"); |
502 | |
603 | |
503 | Newz (0, req, 1, aio_cb); |
604 | { |
|
|
605 | dREQ; |
504 | |
606 | |
505 | if (!req) |
607 | req->type = ix; |
506 | croak ("out of memory during aio_req allocation"); |
608 | req->fh = newSVsv (fh); |
|
|
609 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
610 | : IoOFP (sv_2io (fh))); |
|
|
611 | req->offset = offset; |
|
|
612 | req->length = length; |
|
|
613 | req->data = SvREFCNT_inc (data); |
|
|
614 | req->dataptr = (char *)svptr + dataoffset; |
|
|
615 | req->callback = SvREFCNT_inc (callback); |
|
|
616 | |
|
|
617 | send_req (req); |
|
|
618 | } |
|
|
619 | } |
|
|
620 | |
|
|
621 | void |
|
|
622 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
623 | SV * fh |
|
|
624 | UV offset |
|
|
625 | IV length |
|
|
626 | SV * callback |
|
|
627 | PROTOTYPE: $$$;$ |
|
|
628 | CODE: |
|
|
629 | { |
|
|
630 | dREQ; |
507 | |
631 | |
508 | req->type = REQ_READAHEAD; |
632 | req->type = REQ_READAHEAD; |
|
|
633 | req->fh = newSVsv (fh); |
509 | req->fd = PerlIO_fileno (fh); |
634 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
510 | req->offset = offset; |
635 | req->offset = offset; |
511 | req->length = length; |
636 | req->length = length; |
512 | req->callback = SvREFCNT_inc (callback); |
|
|
513 | |
637 | |
514 | send_req (req); |
638 | send_req (req); |
515 | } |
639 | } |
516 | |
640 | |
517 | void |
641 | void |
518 | aio_stat(fh_or_path,callback) |
642 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
519 | SV * fh_or_path |
643 | SV * fh_or_path |
520 | SV * callback |
644 | SV * callback |
521 | PROTOTYPE: $$ |
|
|
522 | ALIAS: |
645 | ALIAS: |
|
|
646 | aio_stat = REQ_STAT |
523 | aio_lstat = 1 |
647 | aio_lstat = REQ_LSTAT |
524 | CODE: |
648 | CODE: |
525 | { |
649 | { |
526 | aio_req req; |
650 | dREQ; |
527 | |
|
|
528 | Newz (0, req, 1, aio_cb); |
|
|
529 | |
|
|
530 | if (!req) |
|
|
531 | croak ("out of memory during aio_req allocation"); |
|
|
532 | |
651 | |
533 | New (0, req->statdata, 1, Stat_t); |
652 | New (0, req->statdata, 1, Stat_t); |
534 | |
|
|
535 | if (!req->statdata) |
653 | if (!req->statdata) |
536 | croak ("out of memory during aio_req->statdata allocation"); |
654 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
537 | |
655 | |
538 | if (SvPOK (fh_or_path)) |
656 | if (SvPOK (fh_or_path)) |
539 | { |
657 | { |
540 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
658 | req->type = ix; |
541 | req->data = newSVsv (fh_or_path); |
659 | req->data = newSVsv (fh_or_path); |
542 | req->dataptr = SvPV_nolen (req->data); |
660 | req->dataptr = SvPVbyte_nolen (req->data); |
543 | } |
661 | } |
544 | else |
662 | else |
545 | { |
663 | { |
546 | req->type = REQ_FSTAT; |
664 | req->type = REQ_FSTAT; |
|
|
665 | req->fh = newSVsv (fh_or_path); |
547 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
548 | } |
667 | } |
549 | |
668 | |
550 | req->callback = SvREFCNT_inc (callback); |
|
|
551 | |
|
|
552 | send_req (req); |
669 | send_req (req); |
553 | } |
670 | } |
554 | |
671 | |
555 | void |
672 | void |
556 | aio_unlink(pathname,callback) |
673 | aio_unlink(pathname,callback=&PL_sv_undef) |
557 | SV * pathname |
674 | SV * pathname |
558 | SV * callback |
675 | SV * callback |
559 | PROTOTYPE: $$ |
676 | ALIAS: |
|
|
677 | aio_unlink = REQ_UNLINK |
|
|
678 | aio_rmdir = REQ_RMDIR |
560 | CODE: |
679 | CODE: |
561 | { |
680 | { |
562 | aio_req req; |
681 | dREQ; |
563 | |
682 | |
564 | Newz (0, req, 1, aio_cb); |
683 | req->type = ix; |
565 | |
|
|
566 | if (!req) |
|
|
567 | croak ("out of memory during aio_req allocation"); |
|
|
568 | |
|
|
569 | req->type = REQ_UNLINK; |
|
|
570 | req->data = newSVsv (pathname); |
684 | req->data = newSVsv (pathname); |
571 | req->dataptr = SvPV_nolen (req->data); |
685 | req->dataptr = SvPVbyte_nolen (req->data); |
572 | req->callback = SvREFCNT_inc (callback); |
|
|
573 | |
686 | |
574 | send_req (req); |
687 | send_req (req); |
575 | } |
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; |
|
|
698 | |
|
|
699 | req->type = REQ_SYMLINK; |
|
|
700 | req->fh = newSVsv (oldpath); |
|
|
701 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
702 | req->data = newSVsv (newpath); |
|
|
703 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
704 | |
|
|
705 | send_req (req); |
|
|
706 | } |
|
|
707 | |
|
|
708 | void |
|
|
709 | flush() |
|
|
710 | PROTOTYPE: |
|
|
711 | CODE: |
|
|
712 | while (nreqs) |
|
|
713 | { |
|
|
714 | poll_wait (); |
|
|
715 | poll_cb (); |
|
|
716 | } |
|
|
717 | |
|
|
718 | void |
|
|
719 | poll() |
|
|
720 | PROTOTYPE: |
|
|
721 | CODE: |
|
|
722 | if (nreqs) |
|
|
723 | { |
|
|
724 | poll_wait (); |
|
|
725 | poll_cb (); |
|
|
726 | } |
576 | |
727 | |
577 | int |
728 | int |
578 | poll_fileno() |
729 | poll_fileno() |
579 | PROTOTYPE: |
730 | PROTOTYPE: |
580 | CODE: |
731 | CODE: |