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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 | |
5 | #include "autoconf/config.h" |
8 | #include "autoconf/config.h" |
… | |
… | |
26 | |
29 | |
27 | enum { |
30 | enum { |
28 | REQ_QUIT, |
31 | REQ_QUIT, |
29 | REQ_OPEN, REQ_CLOSE, |
32 | REQ_OPEN, REQ_CLOSE, |
30 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
32 | 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, |
33 | }; |
38 | }; |
34 | |
39 | |
35 | typedef struct aio_cb { |
40 | typedef struct aio_cb { |
36 | struct aio_cb *volatile next; |
41 | struct aio_cb *volatile next; |
37 | |
42 | |
… | |
… | |
42 | size_t length; |
47 | size_t length; |
43 | ssize_t result; |
48 | ssize_t result; |
44 | mode_t mode; /* open */ |
49 | mode_t mode; /* open */ |
45 | int errorno; |
50 | int errorno; |
46 | SV *data, *callback, *fh; |
51 | SV *data, *callback, *fh; |
47 | void *dataptr; |
52 | void *dataptr, *data2ptr; |
48 | STRLEN dataoffset; |
53 | STRLEN dataoffset; |
49 | |
54 | |
50 | Stat_t *statdata; |
55 | Stat_t *statdata; |
51 | } aio_cb; |
56 | } aio_cb; |
52 | |
57 | |
… | |
… | |
61 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
62 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
63 | |
68 | |
64 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
65 | static volatile aio_req ress, rese; /* queue start, queue end */ |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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71 | |
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72 | static void free_req (aio_req req) |
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73 | { |
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74 | if (req->data) |
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75 | SvREFCNT_dec (req->data); |
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76 | |
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77 | if (req->fh) |
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78 | SvREFCNT_dec (req->fh); |
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79 | |
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80 | if (req->statdata) |
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81 | Safefree (req->statdata); |
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82 | |
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83 | if (req->callback) |
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84 | SvREFCNT_dec (req->callback); |
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85 | |
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86 | Safefree (req); |
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87 | } |
66 | |
88 | |
67 | static void |
89 | static void |
68 | poll_wait () |
90 | poll_wait () |
69 | { |
91 | { |
70 | if (nreqs && !ress) |
92 | if (nreqs && !ress) |
… | |
… | |
80 | static int |
102 | static int |
81 | poll_cb () |
103 | poll_cb () |
82 | { |
104 | { |
83 | dSP; |
105 | dSP; |
84 | int count = 0; |
106 | int count = 0; |
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107 | int do_croak = 0; |
85 | aio_req req, prv; |
108 | aio_req req; |
86 | |
109 | |
87 | pthread_mutex_lock (&reslock); |
110 | for (;;) |
88 | |
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89 | { |
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90 | /* read any signals sent by the worker threads */ |
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91 | char buf [32]; |
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92 | while (read (respipe [0], buf, 32) > 0) |
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93 | ; |
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94 | } |
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95 | |
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96 | req = ress; |
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97 | ress = rese = 0; |
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98 | |
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99 | pthread_mutex_unlock (&reslock); |
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100 | |
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101 | while (req) |
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102 | { |
111 | { |
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112 | pthread_mutex_lock (&reslock); |
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113 | req = ress; |
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114 | |
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115 | if (req) |
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116 | { |
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117 | ress = req->next; |
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118 | |
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119 | if (!ress) |
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120 | { |
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121 | rese = 0; |
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122 | |
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123 | /* read any signals sent by the worker threads */ |
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124 | char buf [32]; |
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125 | while (read (respipe [0], buf, 32) == 32) |
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126 | ; |
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127 | } |
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128 | } |
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129 | |
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130 | pthread_mutex_unlock (&reslock); |
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131 | |
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132 | if (!req) |
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133 | break; |
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134 | |
103 | nreqs--; |
135 | nreqs--; |
104 | |
136 | |
105 | if (req->type == REQ_QUIT) |
137 | if (req->type == REQ_QUIT) |
106 | started--; |
138 | started--; |
107 | else |
139 | else |
108 | { |
140 | { |
109 | int errorno = errno; |
141 | int errorno = errno; |
110 | errno = req->errorno; |
142 | errno = req->errorno; |
111 | |
143 | |
112 | if (req->type == REQ_READ) |
144 | if (req->type == REQ_READ) |
113 | SvCUR_set (req->data, req->dataoffset |
145 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
114 | + req->result > 0 ? req->result : 0); |
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115 | |
146 | |
116 | if (req->data) |
147 | if (req->statdata) |
117 | SvREFCNT_dec (req->data); |
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118 | |
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119 | if (req->fh) |
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120 | SvREFCNT_dec (req->fh); |
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121 | |
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122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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123 | { |
148 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
149 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststatval = req->result; |
150 | PL_laststatval = req->result; |
126 | PL_statcache = *(req->statdata); |
151 | PL_statcache = *(req->statdata); |
127 | |
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128 | Safefree (req->statdata); |
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129 | } |
152 | } |
130 | |
153 | |
131 | ENTER; |
154 | ENTER; |
132 | PUSHMARK (SP); |
155 | PUSHMARK (SP); |
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
156 | XPUSHs (sv_2mortal (newSViv (req->result))); |
… | |
… | |
150 | if (SvOK (req->callback)) |
173 | if (SvOK (req->callback)) |
151 | { |
174 | { |
152 | PUTBACK; |
175 | PUTBACK; |
153 | call_sv (req->callback, G_VOID | G_EVAL); |
176 | call_sv (req->callback, G_VOID | G_EVAL); |
154 | SPAGAIN; |
177 | SPAGAIN; |
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178 | |
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179 | if (SvTRUE (ERRSV)) |
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180 | { |
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181 | free_req (req); |
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182 | croak (0); |
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183 | } |
155 | } |
184 | } |
156 | |
185 | |
157 | LEAVE; |
186 | LEAVE; |
158 | |
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159 | if (req->callback) |
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160 | SvREFCNT_dec (req->callback); |
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161 | |
187 | |
162 | errno = errorno; |
188 | errno = errorno; |
163 | count++; |
189 | count++; |
164 | } |
190 | } |
165 | |
191 | |
166 | prv = req; |
192 | free_req (req); |
167 | req = req->next; |
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168 | Safefree (prv); |
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169 | |
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170 | /* TODO: croak on errors? */ |
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171 | } |
193 | } |
172 | |
194 | |
173 | return count; |
195 | return count; |
174 | } |
196 | } |
175 | |
197 | |
… | |
… | |
213 | reqe = reqs = req; |
235 | reqe = reqs = req; |
214 | |
236 | |
215 | pthread_cond_signal (&reqwait); |
237 | pthread_cond_signal (&reqwait); |
216 | pthread_mutex_unlock (&reqlock); |
238 | pthread_mutex_unlock (&reqlock); |
217 | |
239 | |
218 | while (nreqs > max_outstanding) |
240 | if (nreqs > max_outstanding) |
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241 | for (;;) |
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242 | { |
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243 | poll_cb (); |
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244 | |
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245 | if (nreqs <= max_outstanding) |
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246 | break; |
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247 | |
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248 | poll_wait (); |
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249 | } |
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250 | } |
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251 | |
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252 | static void |
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253 | end_thread (void) |
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254 | { |
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255 | aio_req req; |
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256 | Newz (0, req, 1, aio_cb); |
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257 | req->type = REQ_QUIT; |
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258 | |
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259 | send_req (req); |
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260 | } |
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261 | |
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262 | static void min_parallel (int nthreads) |
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263 | { |
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264 | while (nthreads > started) |
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265 | start_thread (); |
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266 | } |
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267 | |
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268 | static void max_parallel (int nthreads) |
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269 | { |
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270 | int cur = started; |
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271 | |
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272 | while (cur > nthreads) |
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273 | { |
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274 | end_thread (); |
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275 | cur--; |
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276 | } |
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277 | |
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278 | while (started > nthreads) |
219 | { |
279 | { |
220 | poll_wait (); |
280 | poll_wait (); |
221 | poll_cb (); |
281 | poll_cb (); |
222 | } |
282 | } |
223 | } |
283 | } |
224 | |
284 | |
225 | static void |
285 | static void create_pipe () |
226 | end_thread (void) |
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227 | { |
286 | { |
228 | aio_req req; |
287 | if (pipe (respipe)) |
229 | New (0, req, 1, aio_cb); |
288 | croak ("unable to initialize result pipe"); |
230 | req->type = REQ_QUIT; |
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231 | |
289 | |
232 | send_req (req); |
290 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
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291 | croak ("cannot set result pipe to nonblocking mode"); |
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292 | |
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293 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
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294 | croak ("cannot set result pipe to nonblocking mode"); |
233 | } |
295 | } |
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296 | |
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297 | static void atfork_prepare (void) |
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298 | { |
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299 | for (;;) { |
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300 | |
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301 | for (;;) |
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302 | { |
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303 | poll_cb (); |
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304 | |
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305 | if (!nreqs) |
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306 | break; |
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307 | |
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308 | poll_wait (); |
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309 | } |
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310 | |
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311 | pthread_mutex_lock (&reqlock); |
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312 | |
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313 | if (!nreqs) |
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314 | break; |
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315 | |
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316 | pthread_mutex_unlock (&reqlock); |
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317 | } |
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318 | |
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319 | pthread_mutex_lock (&reslock); |
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320 | |
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321 | assert (!nreqs && !reqs && !ress); |
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322 | } |
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323 | |
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324 | static void atfork_parent (void) |
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325 | { |
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326 | pthread_mutex_unlock (&reslock); |
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327 | pthread_mutex_unlock (&reqlock); |
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328 | } |
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329 | |
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330 | static void atfork_child (void) |
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331 | { |
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332 | int restart = started; |
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333 | started = 0; |
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334 | |
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335 | atfork_parent (); |
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336 | |
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337 | min_parallel (restart); |
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338 | } |
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339 | |
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340 | /*****************************************************************************/ |
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341 | /* work around various missing functions */ |
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342 | |
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343 | #if !HAVE_PREADWRITE |
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344 | # define pread aio_pread |
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345 | # define pwrite aio_pwrite |
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346 | |
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347 | /* |
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348 | * make our pread/pwrite safe against themselves, but not against |
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349 | * normal read/write by using a mutex. slows down execution a lot, |
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350 | * but that's your problem, not mine. |
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351 | */ |
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352 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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353 | |
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354 | static ssize_t |
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355 | pread (int fd, void *buf, size_t count, off_t offset) |
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356 | { |
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357 | ssize_t res; |
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358 | off_t ooffset; |
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359 | |
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360 | pthread_mutex_lock (&iolock); |
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361 | ooffset = lseek (fd, 0, SEEK_CUR); |
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362 | lseek (fd, offset, SEEK_SET); |
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363 | res = read (fd, buf, count); |
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364 | lseek (fd, ooffset, SEEK_SET); |
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365 | pthread_mutex_unlock (&iolock); |
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366 | |
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367 | return res; |
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368 | } |
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369 | |
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370 | static ssize_t |
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371 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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372 | { |
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373 | ssize_t res; |
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374 | off_t ooffset; |
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375 | |
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376 | pthread_mutex_lock (&iolock); |
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377 | ooffset = lseek (fd, 0, SEEK_CUR); |
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378 | lseek (fd, offset, SEEK_SET); |
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379 | res = write (fd, buf, count); |
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380 | lseek (fd, offset, SEEK_SET); |
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381 | pthread_mutex_unlock (&iolock); |
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382 | |
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383 | return res; |
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384 | } |
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385 | #endif |
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386 | |
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387 | #if !HAVE_FDATASYNC |
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388 | # define fdatasync fsync |
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389 | #endif |
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390 | |
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391 | #if !HAVE_READAHEAD |
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392 | # define readahead aio_readahead |
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393 | |
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394 | static char readahead_buf[4096]; |
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395 | |
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396 | static ssize_t |
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397 | readahead (int fd, off_t offset, size_t count) |
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398 | { |
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399 | while (count > 0) |
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400 | { |
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401 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
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402 | |
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403 | pread (fd, readahead_buf, len, offset); |
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404 | offset += len; |
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405 | count -= len; |
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406 | } |
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407 | |
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408 | errno = 0; |
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409 | } |
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410 | #endif |
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411 | |
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412 | /*****************************************************************************/ |
234 | |
413 | |
235 | static void * |
414 | static void * |
236 | aio_proc (void *thr_arg) |
415 | aio_proc (void *thr_arg) |
237 | { |
416 | { |
238 | aio_req req; |
417 | aio_req req; |
… | |
… | |
264 | |
443 | |
265 | type = req->type; |
444 | type = req->type; |
266 | |
445 | |
267 | switch (type) |
446 | switch (type) |
268 | { |
447 | { |
269 | #if HAVE_PREADWRITE |
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270 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
448 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
271 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
449 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
272 | #else |
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273 | # error "pread/pwrite cannot be emulated, fix your os" |
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274 | #endif |
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275 | |
450 | |
276 | #if HAVE_READAHEAD |
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277 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
451 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
278 | #else |
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279 | // TODO: emulate |
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280 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
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281 | #endif |
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282 | |
452 | |
283 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
453 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
284 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
454 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
285 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
455 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
286 | |
456 | |
287 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
457 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
288 | case REQ_CLOSE: req->result = close (req->fd); break; |
458 | case REQ_CLOSE: req->result = close (req->fd); break; |
289 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
459 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
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460 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
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461 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
290 | |
462 | |
291 | case REQ_FDATASYNC: |
463 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
292 | #if HAVE_FDATASYNC |
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293 | req->result = fdatasync (req->fd); break; |
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294 | #endif |
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295 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
464 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
296 | |
465 | |
297 | case REQ_QUIT: |
466 | case REQ_QUIT: |
298 | break; |
467 | break; |
299 | |
468 | |
… | |
… | |
326 | while (type != REQ_QUIT); |
495 | while (type != REQ_QUIT); |
327 | |
496 | |
328 | return 0; |
497 | return 0; |
329 | } |
498 | } |
330 | |
499 | |
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500 | #define dREQ \ |
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501 | aio_req req; \ |
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502 | \ |
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503 | if (SvOK (callback) && !SvROK (callback)) \ |
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504 | croak ("clalback must be undef or of reference type"); \ |
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505 | \ |
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506 | Newz (0, req, 1, aio_cb); \ |
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507 | if (!req) \ |
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508 | croak ("out of memory during aio_req allocation"); \ |
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509 | \ |
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510 | req->callback = newSVsv (callback); |
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511 | |
331 | MODULE = IO::AIO PACKAGE = IO::AIO |
512 | MODULE = IO::AIO PACKAGE = IO::AIO |
332 | |
513 | |
333 | PROTOTYPES: ENABLE |
514 | PROTOTYPES: ENABLE |
334 | |
515 | |
335 | BOOT: |
516 | BOOT: |
336 | { |
517 | { |
337 | if (pipe (respipe)) |
518 | create_pipe (); |
338 | croak ("unable to initialize result pipe"); |
519 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
339 | |
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340 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
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341 | croak ("cannot set result pipe to nonblocking mode"); |
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342 | |
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343 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
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344 | croak ("cannot set result pipe to nonblocking mode"); |
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345 | } |
520 | } |
346 | |
521 | |
347 | void |
522 | void |
348 | min_parallel(nthreads) |
523 | min_parallel(nthreads) |
349 | int nthreads |
524 | int nthreads |
350 | PROTOTYPE: $ |
525 | PROTOTYPE: $ |
351 | CODE: |
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352 | while (nthreads > started) |
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353 | start_thread (); |
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354 | |
526 | |
355 | void |
527 | void |
356 | max_parallel(nthreads) |
528 | max_parallel(nthreads) |
357 | int nthreads |
529 | int nthreads |
358 | PROTOTYPE: $ |
530 | PROTOTYPE: $ |
359 | CODE: |
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360 | { |
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361 | int cur = started; |
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362 | while (cur > nthreads) |
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363 | { |
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364 | end_thread (); |
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365 | cur--; |
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366 | } |
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367 | |
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368 | while (started > nthreads) |
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369 | { |
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370 | poll_wait (); |
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371 | poll_cb (); |
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372 | } |
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373 | } |
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374 | |
531 | |
375 | int |
532 | int |
376 | max_outstanding(nreqs) |
533 | max_outstanding(nreqs) |
377 | int nreqs |
534 | int nreqs |
378 | PROTOTYPE: $ |
535 | PROTOTYPE: $ |
… | |
… | |
387 | int mode |
544 | int mode |
388 | SV * callback |
545 | SV * callback |
389 | PROTOTYPE: $$$;$ |
546 | PROTOTYPE: $$$;$ |
390 | CODE: |
547 | CODE: |
391 | { |
548 | { |
392 | aio_req req; |
549 | dREQ; |
393 | |
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394 | Newz (0, req, 1, aio_cb); |
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395 | |
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396 | if (!req) |
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397 | croak ("out of memory during aio_req allocation"); |
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398 | |
550 | |
399 | req->type = REQ_OPEN; |
551 | req->type = REQ_OPEN; |
400 | req->data = newSVsv (pathname); |
552 | req->data = newSVsv (pathname); |
401 | req->dataptr = SvPV_nolen (req->data); |
553 | req->dataptr = SvPVbyte_nolen (req->data); |
402 | req->fd = flags; |
554 | req->fd = flags; |
403 | req->mode = mode; |
555 | req->mode = mode; |
404 | req->callback = SvREFCNT_inc (callback); |
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405 | |
556 | |
406 | send_req (req); |
557 | send_req (req); |
407 | } |
558 | } |
408 | |
559 | |
409 | void |
560 | void |
… | |
… | |
415 | aio_close = REQ_CLOSE |
566 | aio_close = REQ_CLOSE |
416 | aio_fsync = REQ_FSYNC |
567 | aio_fsync = REQ_FSYNC |
417 | aio_fdatasync = REQ_FDATASYNC |
568 | aio_fdatasync = REQ_FDATASYNC |
418 | CODE: |
569 | CODE: |
419 | { |
570 | { |
420 | aio_req req; |
571 | dREQ; |
421 | |
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422 | Newz (0, req, 1, aio_cb); |
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423 | |
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424 | if (!req) |
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425 | croak ("out of memory during aio_req allocation"); |
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426 | |
572 | |
427 | req->type = ix; |
573 | req->type = ix; |
428 | req->fh = newSVsv (fh); |
574 | req->fh = newSVsv (fh); |
429 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
575 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
430 | req->callback = SvREFCNT_inc (callback); |
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431 | |
576 | |
432 | send_req (req); |
577 | send_req (req); |
433 | } |
578 | } |
434 | |
579 | |
435 | void |
580 | void |
… | |
… | |
446 | PROTOTYPE: $$$$$;$ |
591 | PROTOTYPE: $$$$$;$ |
447 | CODE: |
592 | CODE: |
448 | { |
593 | { |
449 | aio_req req; |
594 | aio_req req; |
450 | STRLEN svlen; |
595 | STRLEN svlen; |
451 | char *svptr = SvPV (data, svlen); |
596 | char *svptr = SvPVbyte (data, svlen); |
452 | |
597 | |
453 | SvUPGRADE (data, SVt_PV); |
598 | SvUPGRADE (data, SVt_PV); |
454 | SvPOK_on (data); |
599 | SvPOK_on (data); |
455 | |
600 | |
456 | if (dataoffset < 0) |
601 | if (dataoffset < 0) |
… | |
… | |
472 | } |
617 | } |
473 | |
618 | |
474 | if (length < 0) |
619 | if (length < 0) |
475 | croak ("length must not be negative"); |
620 | croak ("length must not be negative"); |
476 | |
621 | |
477 | Newz (0, req, 1, aio_cb); |
622 | { |
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623 | dREQ; |
478 | |
624 | |
479 | if (!req) |
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480 | croak ("out of memory during aio_req allocation"); |
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481 | |
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482 | req->type = ix; |
625 | req->type = ix; |
483 | req->fh = newSVsv (fh); |
626 | req->fh = newSVsv (fh); |
484 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
627 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
485 | : IoOFP (sv_2io (fh))); |
628 | : IoOFP (sv_2io (fh))); |
486 | req->offset = offset; |
629 | req->offset = offset; |
487 | req->length = length; |
630 | req->length = length; |
488 | req->data = SvREFCNT_inc (data); |
631 | req->data = SvREFCNT_inc (data); |
489 | req->dataptr = (char *)svptr + dataoffset; |
632 | req->dataptr = (char *)svptr + dataoffset; |
490 | req->callback = SvREFCNT_inc (callback); |
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491 | |
633 | |
492 | send_req (req); |
634 | send_req (req); |
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635 | } |
493 | } |
636 | } |
494 | |
637 | |
495 | void |
638 | void |
496 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
639 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
497 | SV * fh |
640 | SV * fh |
… | |
… | |
499 | IV length |
642 | IV length |
500 | SV * callback |
643 | SV * callback |
501 | PROTOTYPE: $$$;$ |
644 | PROTOTYPE: $$$;$ |
502 | CODE: |
645 | CODE: |
503 | { |
646 | { |
504 | aio_req req; |
647 | dREQ; |
505 | |
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506 | if (length < 0) |
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507 | croak ("length must not be negative"); |
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508 | |
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509 | Newz (0, req, 1, aio_cb); |
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510 | |
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511 | if (!req) |
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512 | croak ("out of memory during aio_req allocation"); |
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513 | |
648 | |
514 | req->type = REQ_READAHEAD; |
649 | req->type = REQ_READAHEAD; |
515 | req->fh = newSVsv (fh); |
650 | req->fh = newSVsv (fh); |
516 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
651 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
517 | req->offset = offset; |
652 | req->offset = offset; |
518 | req->length = length; |
653 | req->length = length; |
519 | req->callback = SvREFCNT_inc (callback); |
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520 | |
654 | |
521 | send_req (req); |
655 | send_req (req); |
522 | } |
656 | } |
523 | |
657 | |
524 | void |
658 | void |
… | |
… | |
528 | ALIAS: |
662 | ALIAS: |
529 | aio_stat = REQ_STAT |
663 | aio_stat = REQ_STAT |
530 | aio_lstat = REQ_LSTAT |
664 | aio_lstat = REQ_LSTAT |
531 | CODE: |
665 | CODE: |
532 | { |
666 | { |
533 | aio_req req; |
667 | dREQ; |
534 | |
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535 | Newz (0, req, 1, aio_cb); |
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536 | |
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537 | if (!req) |
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538 | croak ("out of memory during aio_req allocation"); |
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539 | |
668 | |
540 | New (0, req->statdata, 1, Stat_t); |
669 | New (0, req->statdata, 1, Stat_t); |
541 | |
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542 | if (!req->statdata) |
670 | if (!req->statdata) |
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671 | { |
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672 | free_req (req); |
543 | croak ("out of memory during aio_req->statdata allocation"); |
673 | croak ("out of memory during aio_req->statdata allocation"); |
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674 | } |
544 | |
675 | |
545 | if (SvPOK (fh_or_path)) |
676 | if (SvPOK (fh_or_path)) |
546 | { |
677 | { |
547 | req->type = ix; |
678 | req->type = ix; |
548 | req->data = newSVsv (fh_or_path); |
679 | req->data = newSVsv (fh_or_path); |
549 | req->dataptr = SvPV_nolen (req->data); |
680 | req->dataptr = SvPVbyte_nolen (req->data); |
550 | } |
681 | } |
551 | else |
682 | else |
552 | { |
683 | { |
553 | req->type = REQ_FSTAT; |
684 | req->type = REQ_FSTAT; |
554 | req->fh = newSVsv (fh_or_path); |
685 | req->fh = newSVsv (fh_or_path); |
555 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
686 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
556 | } |
687 | } |
557 | |
688 | |
558 | req->callback = SvREFCNT_inc (callback); |
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559 | |
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560 | send_req (req); |
689 | send_req (req); |
561 | } |
690 | } |
562 | |
691 | |
563 | void |
692 | void |
564 | aio_unlink(pathname,callback=&PL_sv_undef) |
693 | aio_unlink(pathname,callback=&PL_sv_undef) |
565 | SV * pathname |
694 | SV * pathname |
566 | SV * callback |
695 | SV * callback |
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696 | ALIAS: |
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697 | aio_unlink = REQ_UNLINK |
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698 | aio_rmdir = REQ_RMDIR |
567 | CODE: |
699 | CODE: |
568 | { |
700 | { |
569 | aio_req req; |
701 | dREQ; |
570 | |
702 | |
571 | Newz (0, req, 1, aio_cb); |
703 | req->type = ix; |
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704 | req->data = newSVsv (pathname); |
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705 | req->dataptr = SvPVbyte_nolen (req->data); |
572 | |
706 | |
573 | if (!req) |
707 | send_req (req); |
574 | croak ("out of memory during aio_req allocation"); |
708 | } |
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709 | |
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710 | void |
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711 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
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712 | SV * oldpath |
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713 | SV * newpath |
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714 | SV * callback |
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715 | CODE: |
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716 | { |
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717 | dREQ; |
575 | |
718 | |
576 | req->type = REQ_UNLINK; |
719 | req->type = REQ_SYMLINK; |
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720 | req->fh = newSVsv (oldpath); |
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721 | req->data2ptr = SvPVbyte_nolen (req->fh); |
577 | req->data = newSVsv (pathname); |
722 | req->data = newSVsv (newpath); |
578 | req->dataptr = SvPV_nolen (req->data); |
723 | req->dataptr = SvPVbyte_nolen (req->data); |
579 | req->callback = SvREFCNT_inc (callback); |
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580 | |
724 | |
581 | send_req (req); |
725 | send_req (req); |
582 | } |
726 | } |
583 | |
727 | |
584 | void |
728 | void |