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1 | #if __linux |
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2 | # define _GNU_SOURCE |
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3 | #endif |
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4 | |
1 | #define _REENTRANT 1 |
5 | #define _REENTRANT 1 |
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6 | |
2 | #include <errno.h> |
7 | #include <errno.h> |
3 | |
8 | |
4 | #include "EXTERN.h" |
9 | #include "EXTERN.h" |
5 | #include "perl.h" |
10 | #include "perl.h" |
6 | #include "XSUB.h" |
11 | #include "XSUB.h" |
… | |
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41 | # define NAME_MAX 4096 |
46 | # define NAME_MAX 4096 |
42 | #endif |
47 | #endif |
43 | |
48 | |
44 | #if __ia64 |
49 | #if __ia64 |
45 | # define STACKSIZE 65536 |
50 | # define STACKSIZE 65536 |
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51 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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52 | # define STACKSIZE PTHREAD_STACK_MIN |
46 | #else |
53 | #else |
47 | # define STACKSIZE 8192 |
54 | # define STACKSIZE 16384 |
48 | #endif |
55 | #endif |
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56 | |
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57 | /* buffer size for various temporary buffers */ |
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58 | #define AIO_BUFSIZE 65536 |
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59 | |
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60 | #define dBUF \ |
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61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
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62 | if (!aio_buf) \ |
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63 | return -1; |
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64 | |
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65 | #define fBUF free (aio_buf) |
49 | |
66 | |
50 | enum { |
67 | enum { |
51 | REQ_QUIT, |
68 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
69 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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66 | |
83 | |
67 | typedef struct aio_cb |
84 | typedef struct aio_cb |
68 | { |
85 | { |
69 | struct aio_cb *volatile next; |
86 | struct aio_cb *volatile next; |
70 | |
87 | |
71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
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72 | |
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73 | SV *self; /* the perl counterpart of this request, if any */ |
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74 | |
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75 | SV *data, *callback; |
88 | SV *data, *callback; |
76 | SV *fh, *fh2; |
89 | SV *fh, *fh2; |
77 | void *dataptr, *data2ptr; |
90 | void *dataptr, *data2ptr; |
78 | Stat_t *statdata; |
91 | Stat_t *statdata; |
79 | off_t offset; |
92 | off_t offset; |
80 | size_t length; |
93 | size_t length; |
81 | ssize_t result; |
94 | ssize_t result; |
82 | |
95 | |
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96 | STRLEN dataoffset; |
83 | int type; |
97 | int type; |
84 | int fd, fd2; |
98 | int fd, fd2; |
85 | int errorno; |
99 | int errorno; |
86 | STRLEN dataoffset; |
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87 | mode_t mode; /* open */ |
100 | mode_t mode; /* open */ |
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101 | |
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102 | unsigned char flags; |
88 | unsigned char pri; |
103 | unsigned char pri; |
89 | unsigned char flags; |
104 | |
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105 | SV *self; /* the perl counterpart of this request, if any */ |
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106 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
90 | } aio_cb; |
107 | } aio_cb; |
91 | |
108 | |
92 | enum { |
109 | enum { |
93 | FLAG_CANCELLED = 0x01, |
110 | FLAG_CANCELLED = 0x01, |
94 | }; |
111 | }; |
95 | |
112 | |
96 | typedef aio_cb *aio_req; |
113 | typedef aio_cb *aio_req; |
97 | typedef aio_cb *aio_req_ornot; |
114 | typedef aio_cb *aio_req_ornot; |
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115 | |
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116 | enum { |
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117 | PRI_MIN = -4, |
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118 | PRI_MAX = 4, |
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119 | |
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120 | DEFAULT_PRI = 0, |
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121 | PRI_BIAS = -PRI_MIN, |
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122 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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123 | }; |
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124 | |
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125 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
98 | |
126 | |
99 | static int started, wanted; |
127 | static int started, wanted; |
100 | static volatile int nreqs; |
128 | static volatile int nreqs; |
101 | static int max_outstanding = 1<<30; |
129 | static int max_outstanding = 1<<30; |
102 | static int respipe [2]; |
130 | static int respipe [2]; |
103 | |
131 | |
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132 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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133 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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134 | #else |
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135 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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136 | #endif |
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137 | |
104 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
105 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
106 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
107 | |
141 | |
108 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
142 | /* |
109 | static volatile aio_req ress, rese; /* queue start, queue end */ |
143 | * a somewhat faster data structure might be nice, but |
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144 | * with 8 priorities this actually needs <20 insns |
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145 | * per shift, the most expensive operation. |
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146 | */ |
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147 | typedef struct { |
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148 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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149 | int size; |
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150 | } reqq; |
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151 | |
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152 | static reqq req_queue; |
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153 | static reqq res_queue; |
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154 | |
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155 | int reqq_push (reqq *q, aio_req req) |
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156 | { |
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157 | int pri = req->pri; |
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158 | req->next = 0; |
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159 | |
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160 | if (q->qe[pri]) |
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161 | { |
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162 | q->qe[pri]->next = req; |
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163 | q->qe[pri] = req; |
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164 | } |
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165 | else |
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166 | q->qe[pri] = q->qs[pri] = req; |
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167 | |
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168 | return q->size++; |
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169 | } |
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170 | |
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171 | aio_req reqq_shift (reqq *q) |
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172 | { |
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173 | int pri; |
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174 | |
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175 | if (!q->size) |
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176 | return 0; |
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177 | |
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178 | --q->size; |
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179 | |
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180 | for (pri = NUM_PRI; pri--; ) |
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181 | { |
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182 | aio_req req = q->qs[pri]; |
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183 | |
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184 | if (req) |
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185 | { |
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186 | if (!(q->qs[pri] = req->next)) |
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187 | q->qe[pri] = 0; |
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188 | |
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189 | return req; |
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190 | } |
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191 | } |
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192 | |
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193 | abort (); |
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194 | } |
110 | |
195 | |
111 | static void req_invoke (aio_req req); |
196 | static void req_invoke (aio_req req); |
112 | static void req_free (aio_req req); |
197 | static void req_free (aio_req req); |
113 | |
198 | |
114 | /* must be called at most once */ |
199 | /* must be called at most once */ |
… | |
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148 | ENTER; |
233 | ENTER; |
149 | SAVETMPS; |
234 | SAVETMPS; |
150 | PUSHMARK (SP); |
235 | PUSHMARK (SP); |
151 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
236 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
152 | PUTBACK; |
237 | PUTBACK; |
153 | call_sv (grp->fh2, G_VOID | G_EVAL); |
238 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
154 | SPAGAIN; |
239 | SPAGAIN; |
155 | FREETMPS; |
240 | FREETMPS; |
156 | LEAVE; |
241 | LEAVE; |
157 | } |
242 | } |
158 | |
243 | |
… | |
… | |
181 | } |
266 | } |
182 | } |
267 | } |
183 | |
268 | |
184 | static void poll_wait () |
269 | static void poll_wait () |
185 | { |
270 | { |
186 | if (nreqs && !ress) |
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187 | { |
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188 | fd_set rfd; |
271 | fd_set rfd; |
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272 | |
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273 | while (nreqs) |
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274 | { |
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275 | int size; |
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276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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277 | pthread_mutex_lock (&reslock); |
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278 | #endif |
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279 | size = res_queue.size; |
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280 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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281 | pthread_mutex_unlock (&reslock); |
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282 | #endif |
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283 | |
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284 | if (size) |
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285 | return; |
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286 | |
189 | FD_ZERO(&rfd); |
287 | FD_ZERO(&rfd); |
190 | FD_SET(respipe [0], &rfd); |
288 | FD_SET(respipe [0], &rfd); |
191 | |
289 | |
192 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
290 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
193 | } |
291 | } |
194 | } |
292 | } |
195 | |
293 | |
196 | static void req_invoke (aio_req req) |
294 | static void req_invoke (aio_req req) |
197 | { |
295 | { |
198 | dSP; |
296 | dSP; |
199 | int errorno = errno; |
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200 | |
297 | |
201 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
298 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
202 | return; |
299 | { |
203 | |
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204 | errno = req->errorno; |
300 | errno = req->errorno; |
205 | |
301 | |
206 | ENTER; |
302 | ENTER; |
207 | SAVETMPS; |
303 | SAVETMPS; |
208 | PUSHMARK (SP); |
304 | PUSHMARK (SP); |
209 | EXTEND (SP, 1); |
305 | EXTEND (SP, 1); |
210 | |
306 | |
211 | switch (req->type) |
307 | switch (req->type) |
212 | { |
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213 | case REQ_READDIR: |
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214 | { |
308 | { |
215 | SV *rv = &PL_sv_undef; |
309 | case REQ_READDIR: |
216 | |
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217 | if (req->result >= 0) |
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218 | { |
310 | { |
219 | char *buf = req->data2ptr; |
311 | SV *rv = &PL_sv_undef; |
220 | AV *av = newAV (); |
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221 | |
312 | |
222 | while (req->result) |
313 | if (req->result >= 0) |
223 | { |
314 | { |
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315 | char *buf = req->data2ptr; |
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316 | AV *av = newAV (); |
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317 | |
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318 | while (req->result) |
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319 | { |
224 | SV *sv = newSVpv (buf, 0); |
320 | SV *sv = newSVpv (buf, 0); |
225 | |
321 | |
226 | av_push (av, sv); |
322 | av_push (av, sv); |
227 | buf += SvCUR (sv) + 1; |
323 | buf += SvCUR (sv) + 1; |
228 | req->result--; |
324 | req->result--; |
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325 | } |
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326 | |
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327 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
229 | } |
328 | } |
230 | |
329 | |
231 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
330 | PUSHs (rv); |
232 | } |
331 | } |
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332 | break; |
233 | |
333 | |
234 | PUSHs (rv); |
334 | case REQ_OPEN: |
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335 | { |
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336 | /* convert fd to fh */ |
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337 | SV *fh; |
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338 | |
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339 | PUSHs (sv_2mortal (newSViv (req->result))); |
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340 | PUTBACK; |
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341 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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342 | SPAGAIN; |
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343 | |
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344 | fh = SvREFCNT_inc (POPs); |
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345 | |
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346 | PUSHMARK (SP); |
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347 | XPUSHs (sv_2mortal (fh)); |
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348 | } |
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349 | break; |
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350 | |
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351 | case REQ_GROUP: |
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352 | req->fd = 2; /* mark group as finished */ |
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353 | |
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354 | if (req->data) |
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355 | { |
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356 | int i; |
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357 | AV *av = (AV *)req->data; |
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358 | |
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359 | EXTEND (SP, AvFILL (av) + 1); |
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360 | for (i = 0; i <= AvFILL (av); ++i) |
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361 | PUSHs (*av_fetch (av, i, 0)); |
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362 | } |
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363 | break; |
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364 | |
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365 | case REQ_NOP: |
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366 | case REQ_SLEEP: |
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367 | break; |
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368 | |
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369 | default: |
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370 | PUSHs (sv_2mortal (newSViv (req->result))); |
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371 | break; |
235 | } |
372 | } |
236 | break; |
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237 | |
373 | |
238 | case REQ_OPEN: |
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239 | { |
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240 | /* convert fd to fh */ |
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241 | SV *fh; |
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242 | |
374 | |
243 | PUSHs (sv_2mortal (newSViv (req->result))); |
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244 | PUTBACK; |
375 | PUTBACK; |
245 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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246 | SPAGAIN; |
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247 | |
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248 | fh = SvREFCNT_inc (POPs); |
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249 | |
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250 | PUSHMARK (SP); |
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251 | XPUSHs (sv_2mortal (fh)); |
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252 | } |
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253 | break; |
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254 | |
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255 | case REQ_GROUP: |
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256 | req->fd = 2; /* mark group as finished */ |
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257 | |
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258 | if (req->data) |
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259 | { |
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260 | int i; |
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261 | AV *av = (AV *)req->data; |
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262 | |
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263 | EXTEND (SP, AvFILL (av) + 1); |
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264 | for (i = 0; i <= AvFILL (av); ++i) |
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265 | PUSHs (*av_fetch (av, i, 0)); |
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266 | } |
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267 | break; |
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268 | |
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269 | case REQ_NOP: |
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270 | case REQ_SLEEP: |
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271 | break; |
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272 | |
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273 | default: |
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274 | PUSHs (sv_2mortal (newSViv (req->result))); |
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275 | break; |
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276 | } |
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277 | |
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278 | |
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279 | PUTBACK; |
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280 | call_sv (req->callback, G_VOID | G_EVAL); |
376 | call_sv (req->callback, G_VOID | G_EVAL); |
281 | SPAGAIN; |
377 | SPAGAIN; |
282 | |
378 | |
283 | FREETMPS; |
379 | FREETMPS; |
284 | LEAVE; |
380 | LEAVE; |
285 | |
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286 | errno = errorno; |
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287 | |
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288 | if (SvTRUE (ERRSV)) |
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289 | { |
381 | } |
290 | req_free (req); |
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291 | croak (0); |
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292 | } |
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293 | } |
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294 | |
382 | |
295 | static void req_free (aio_req req) |
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296 | { |
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297 | if (req->grp) |
383 | if (req->grp) |
298 | { |
384 | { |
299 | aio_req grp = req->grp; |
385 | aio_req grp = req->grp; |
300 | |
386 | |
301 | /* unlink request */ |
387 | /* unlink request */ |
… | |
… | |
306 | grp->grp_first = req->grp_next; |
392 | grp->grp_first = req->grp_next; |
307 | |
393 | |
308 | aio_grp_dec (grp); |
394 | aio_grp_dec (grp); |
309 | } |
395 | } |
310 | |
396 | |
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397 | if (SvTRUE (ERRSV)) |
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398 | { |
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399 | req_free (req); |
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400 | croak (0); |
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401 | } |
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402 | } |
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403 | |
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404 | static void req_free (aio_req req) |
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405 | { |
311 | if (req->self) |
406 | if (req->self) |
312 | { |
407 | { |
313 | sv_unmagic (req->self, PERL_MAGIC_ext); |
408 | sv_unmagic (req->self, PERL_MAGIC_ext); |
314 | SvREFCNT_dec (req->self); |
409 | SvREFCNT_dec (req->self); |
315 | } |
410 | } |
… | |
… | |
347 | aio_req req; |
442 | aio_req req; |
348 | |
443 | |
349 | for (;;) |
444 | for (;;) |
350 | { |
445 | { |
351 | pthread_mutex_lock (&reslock); |
446 | pthread_mutex_lock (&reslock); |
352 | req = ress; |
447 | req = reqq_shift (&res_queue); |
353 | |
448 | |
354 | if (req) |
449 | if (req) |
355 | { |
450 | { |
356 | ress = req->next; |
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357 | |
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358 | if (!ress) |
451 | if (!res_queue.size) |
359 | { |
452 | { |
360 | /* read any signals sent by the worker threads */ |
453 | /* read any signals sent by the worker threads */ |
361 | char buf [32]; |
454 | char buf [32]; |
362 | while (read (respipe [0], buf, 32) == 32) |
455 | while (read (respipe [0], buf, 32) == 32) |
363 | ; |
456 | ; |
364 | |
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365 | rese = 0; |
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366 | } |
457 | } |
367 | } |
458 | } |
368 | |
459 | |
369 | pthread_mutex_unlock (&reslock); |
460 | pthread_mutex_unlock (&reslock); |
370 | |
461 | |
… | |
… | |
433 | start_thread (); |
524 | start_thread (); |
434 | |
525 | |
435 | ++nreqs; |
526 | ++nreqs; |
436 | |
527 | |
437 | pthread_mutex_lock (&reqlock); |
528 | pthread_mutex_lock (&reqlock); |
438 | |
529 | reqq_push (&req_queue, req); |
439 | req->next = 0; |
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440 | |
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441 | if (reqe) |
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442 | { |
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443 | reqe->next = req; |
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444 | reqe = req; |
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445 | } |
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446 | else |
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447 | reqe = reqs = req; |
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448 | |
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449 | pthread_cond_signal (&reqwait); |
530 | pthread_cond_signal (&reqwait); |
450 | pthread_mutex_unlock (&reqlock); |
531 | pthread_mutex_unlock (&reqlock); |
451 | |
532 | |
452 | if (nreqs > max_outstanding) |
533 | if (nreqs > max_outstanding) |
453 | for (;;) |
534 | for (;;) |
… | |
… | |
462 | } |
543 | } |
463 | |
544 | |
464 | static void end_thread (void) |
545 | static void end_thread (void) |
465 | { |
546 | { |
466 | aio_req req; |
547 | aio_req req; |
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548 | |
467 | Newz (0, req, 1, aio_cb); |
549 | Newz (0, req, 1, aio_cb); |
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550 | |
468 | req->type = REQ_QUIT; |
551 | req->type = REQ_QUIT; |
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552 | req->pri = PRI_MAX + PRI_BIAS; |
469 | |
553 | |
470 | req_send (req); |
554 | req_send (req); |
471 | } |
555 | } |
472 | |
556 | |
473 | static void min_parallel (int nthreads) |
557 | static void min_parallel (int nthreads) |
… | |
… | |
560 | #if !HAVE_READAHEAD |
644 | #if !HAVE_READAHEAD |
561 | # define readahead aio_readahead |
645 | # define readahead aio_readahead |
562 | |
646 | |
563 | static ssize_t readahead (int fd, off_t offset, size_t count) |
647 | static ssize_t readahead (int fd, off_t offset, size_t count) |
564 | { |
648 | { |
565 | char readahead_buf[4096]; |
649 | dBUF; |
566 | |
650 | |
567 | while (count > 0) |
651 | while (count > 0) |
568 | { |
652 | { |
569 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
653 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
570 | |
654 | |
571 | pread (fd, readahead_buf, len, offset); |
655 | pread (fd, aio_buf, len, offset); |
572 | offset += len; |
656 | offset += len; |
573 | count -= len; |
657 | count -= len; |
574 | } |
658 | } |
|
|
659 | |
|
|
660 | fBUF; |
575 | |
661 | |
576 | errno = 0; |
662 | errno = 0; |
577 | } |
663 | } |
578 | #endif |
664 | #endif |
579 | |
665 | |
… | |
… | |
665 | #endif |
751 | #endif |
666 | ) |
752 | ) |
667 | ) |
753 | ) |
668 | { |
754 | { |
669 | /* emulate sendfile. this is a major pain in the ass */ |
755 | /* emulate sendfile. this is a major pain in the ass */ |
670 | char buf[4096]; |
756 | dBUF; |
|
|
757 | |
671 | res = 0; |
758 | res = 0; |
672 | |
759 | |
673 | while (count) |
760 | while (count) |
674 | { |
761 | { |
675 | ssize_t cnt; |
762 | ssize_t cnt; |
676 | |
763 | |
677 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
764 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
678 | |
765 | |
679 | if (cnt <= 0) |
766 | if (cnt <= 0) |
680 | { |
767 | { |
681 | if (cnt && !res) res = -1; |
768 | if (cnt && !res) res = -1; |
682 | break; |
769 | break; |
683 | } |
770 | } |
684 | |
771 | |
685 | cnt = write (ofd, buf, cnt); |
772 | cnt = write (ofd, aio_buf, cnt); |
686 | |
773 | |
687 | if (cnt <= 0) |
774 | if (cnt <= 0) |
688 | { |
775 | { |
689 | if (cnt && !res) res = -1; |
776 | if (cnt && !res) res = -1; |
690 | break; |
777 | break; |
… | |
… | |
692 | |
779 | |
693 | offset += cnt; |
780 | offset += cnt; |
694 | res += cnt; |
781 | res += cnt; |
695 | count -= cnt; |
782 | count -= cnt; |
696 | } |
783 | } |
|
|
784 | |
|
|
785 | fBUF; |
697 | } |
786 | } |
698 | |
787 | |
699 | return res; |
788 | return res; |
700 | } |
789 | } |
701 | |
790 | |
702 | /* read a full directory */ |
791 | /* read a full directory */ |
703 | static int scandir_ (const char *path, void **namesp) |
792 | static int scandir_ (const char *path, void **namesp) |
704 | { |
793 | { |
705 | DIR *dirp = opendir (path); |
794 | DIR *dirp; |
706 | union |
795 | union |
707 | { |
796 | { |
708 | struct dirent d; |
797 | struct dirent d; |
709 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
798 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
710 | } u; |
799 | } *u; |
711 | struct dirent *entp; |
800 | struct dirent *entp; |
712 | char *name, *names; |
801 | char *name, *names; |
713 | int memlen = 4096; |
802 | int memlen = 4096; |
714 | int memofs = 0; |
803 | int memofs = 0; |
715 | int res = 0; |
804 | int res = 0; |
716 | int errorno; |
805 | int errorno; |
717 | |
806 | |
|
|
807 | dirp = opendir (path); |
718 | if (!dirp) |
808 | if (!dirp) |
719 | return -1; |
809 | return -1; |
720 | |
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
721 | names = malloc (memlen); |
812 | names = malloc (memlen); |
722 | |
813 | |
|
|
814 | if (u && names) |
723 | for (;;) |
815 | for (;;) |
724 | { |
816 | { |
|
|
817 | errno = 0; |
725 | errno = 0, readdir_r (dirp, &u.d, &entp); |
818 | readdir_r (dirp, &u->d, &entp); |
726 | |
819 | |
727 | if (!entp) |
820 | if (!entp) |
728 | break; |
821 | break; |
729 | |
822 | |
730 | name = entp->d_name; |
823 | name = entp->d_name; |
731 | |
824 | |
732 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
825 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
733 | { |
826 | { |
734 | int len = strlen (name) + 1; |
827 | int len = strlen (name) + 1; |
735 | |
828 | |
736 | res++; |
829 | res++; |
737 | |
830 | |
738 | while (memofs + len > memlen) |
831 | while (memofs + len > memlen) |
739 | { |
832 | { |
740 | memlen *= 2; |
833 | memlen *= 2; |
741 | names = realloc (names, memlen); |
834 | names = realloc (names, memlen); |
742 | if (!names) |
835 | if (!names) |
743 | break; |
836 | break; |
744 | } |
837 | } |
745 | |
838 | |
746 | memcpy (names + memofs, name, len); |
839 | memcpy (names + memofs, name, len); |
747 | memofs += len; |
840 | memofs += len; |
748 | } |
841 | } |
749 | } |
842 | } |
750 | |
843 | |
751 | errorno = errno; |
844 | errorno = errno; |
|
|
845 | free (u); |
752 | closedir (dirp); |
846 | closedir (dirp); |
753 | |
847 | |
754 | if (errorno) |
848 | if (errorno) |
755 | { |
849 | { |
756 | free (names); |
850 | free (names); |
… | |
… | |
773 | { |
867 | { |
774 | pthread_mutex_lock (&reqlock); |
868 | pthread_mutex_lock (&reqlock); |
775 | |
869 | |
776 | for (;;) |
870 | for (;;) |
777 | { |
871 | { |
778 | req = reqs; |
872 | req = reqq_shift (&req_queue); |
779 | |
|
|
780 | if (reqs) |
|
|
781 | { |
|
|
782 | reqs = reqs->next; |
|
|
783 | if (!reqs) reqe = 0; |
|
|
784 | } |
|
|
785 | |
873 | |
786 | if (req) |
874 | if (req) |
787 | break; |
875 | break; |
788 | |
876 | |
789 | pthread_cond_wait (&reqwait, &reqlock); |
877 | pthread_cond_wait (&reqwait, &reqlock); |
790 | } |
878 | } |
791 | |
879 | |
792 | pthread_mutex_unlock (&reqlock); |
880 | pthread_mutex_unlock (&reqlock); |
793 | |
881 | |
794 | errno = 0; /* strictly unnecessary */ |
882 | errno = 0; /* strictly unnecessary */ |
|
|
883 | type = req->type; /* remember type for QUIT check */ |
795 | |
884 | |
796 | if (!(req->flags & FLAG_CANCELLED)) |
885 | if (!(req->flags & FLAG_CANCELLED)) |
797 | switch (type = req->type) /* remember type for QUIT check */ |
886 | switch (type) |
798 | { |
887 | { |
799 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
888 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
800 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
889 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
801 | |
890 | |
802 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
891 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
840 | |
929 | |
841 | req->errorno = errno; |
930 | req->errorno = errno; |
842 | |
931 | |
843 | pthread_mutex_lock (&reslock); |
932 | pthread_mutex_lock (&reslock); |
844 | |
933 | |
845 | req->next = 0; |
934 | if (!reqq_push (&res_queue, req)) |
846 | |
|
|
847 | if (rese) |
|
|
848 | { |
|
|
849 | rese->next = req; |
|
|
850 | rese = req; |
|
|
851 | } |
|
|
852 | else |
|
|
853 | { |
|
|
854 | rese = ress = req; |
|
|
855 | |
|
|
856 | /* write a dummy byte to the pipe so fh becomes ready */ |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
857 | write (respipe [1], &respipe, 1); |
936 | write (respipe [1], &respipe, 1); |
858 | } |
|
|
859 | |
937 | |
860 | pthread_mutex_unlock (&reslock); |
938 | pthread_mutex_unlock (&reslock); |
861 | } |
939 | } |
862 | while (type != REQ_QUIT); |
940 | while (type != REQ_QUIT); |
863 | |
941 | |
… | |
… | |
894 | { |
972 | { |
895 | aio_req prv; |
973 | aio_req prv; |
896 | |
974 | |
897 | started = 0; |
975 | started = 0; |
898 | |
976 | |
899 | while (reqs) |
977 | while (prv = reqq_shift (&req_queue)) |
900 | { |
|
|
901 | prv = reqs; |
|
|
902 | reqs = prv->next; |
|
|
903 | req_free (prv); |
978 | req_free (prv); |
904 | } |
|
|
905 | |
979 | |
906 | reqs = reqe = 0; |
980 | while (prv = reqq_shift (&res_queue)) |
907 | |
|
|
908 | while (ress) |
|
|
909 | { |
|
|
910 | prv = ress; |
|
|
911 | ress = prv->next; |
|
|
912 | req_free (prv); |
981 | req_free (prv); |
913 | } |
982 | |
914 | |
|
|
915 | ress = rese = 0; |
|
|
916 | |
|
|
917 | close (respipe [0]); |
983 | close (respipe [0]); |
918 | close (respipe [1]); |
984 | close (respipe [1]); |
919 | create_pipe (); |
985 | create_pipe (); |
920 | |
986 | |
921 | atfork_parent (); |
987 | atfork_parent (); |
922 | } |
988 | } |
923 | |
989 | |
924 | #define dREQ \ |
990 | #define dREQ \ |
925 | aio_req req; \ |
991 | aio_req req; \ |
|
|
992 | int req_pri = next_pri; \ |
|
|
993 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
926 | \ |
994 | \ |
927 | if (SvOK (callback) && !SvROK (callback)) \ |
995 | if (SvOK (callback) && !SvROK (callback)) \ |
928 | croak ("callback must be undef or of reference type"); \ |
996 | croak ("callback must be undef or of reference type"); \ |
929 | \ |
997 | \ |
930 | Newz (0, req, 1, aio_cb); \ |
998 | Newz (0, req, 1, aio_cb); \ |
931 | if (!req) \ |
999 | if (!req) \ |
932 | croak ("out of memory during aio_req allocation"); \ |
1000 | croak ("out of memory during aio_req allocation"); \ |
933 | \ |
1001 | \ |
934 | req->callback = newSVsv (callback) |
1002 | req->callback = newSVsv (callback); \ |
|
|
1003 | req->pri = req_pri |
935 | |
1004 | |
936 | #define REQ_SEND \ |
1005 | #define REQ_SEND \ |
937 | req_send (req); \ |
1006 | req_send (req); \ |
938 | \ |
1007 | \ |
939 | if (GIMME_V != G_VOID) \ |
1008 | if (GIMME_V != G_VOID) \ |
… | |
… | |
1214 | SV * callback |
1283 | SV * callback |
1215 | PROTOTYPE: ;$ |
1284 | PROTOTYPE: ;$ |
1216 | PPCODE: |
1285 | PPCODE: |
1217 | { |
1286 | { |
1218 | dREQ; |
1287 | dREQ; |
|
|
1288 | |
1219 | req->type = REQ_GROUP; |
1289 | req->type = REQ_GROUP; |
1220 | req_send (req); |
1290 | req_send (req); |
|
|
1291 | |
1221 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1292 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1222 | } |
1293 | } |
1223 | |
1294 | |
1224 | void |
1295 | void |
1225 | aio_nop (callback=&PL_sv_undef) |
1296 | aio_nop (callback=&PL_sv_undef) |
… | |
… | |
1230 | |
1301 | |
1231 | req->type = REQ_NOP; |
1302 | req->type = REQ_NOP; |
1232 | |
1303 | |
1233 | REQ_SEND; |
1304 | REQ_SEND; |
1234 | } |
1305 | } |
|
|
1306 | |
|
|
1307 | void |
|
|
1308 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1309 | CODE: |
|
|
1310 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1311 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1312 | next_pri = pri + PRI_BIAS; |
1235 | |
1313 | |
1236 | void |
1314 | void |
1237 | flush () |
1315 | flush () |
1238 | PROTOTYPE: |
1316 | PROTOTYPE: |
1239 | CODE: |
1317 | CODE: |
… | |
… | |
1288 | |
1366 | |
1289 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1367 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1290 | |
1368 | |
1291 | void |
1369 | void |
1292 | cancel (aio_req_ornot req) |
1370 | cancel (aio_req_ornot req) |
1293 | PROTOTYPE: |
|
|
1294 | CODE: |
1371 | CODE: |
1295 | req_cancel (req); |
1372 | req_cancel (req); |
1296 | |
1373 | |
1297 | void |
1374 | void |
1298 | cb (aio_req req, SV *callback=&PL_sv_undef) |
1375 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1299 | CODE: |
1376 | CODE: |
1300 | SvREFCNT_dec (req->callback); |
1377 | SvREFCNT_dec (req->callback); |
1301 | req->callback = newSVsv (callback); |
1378 | req->callback = newSVsv (callback); |
1302 | |
1379 | |
1303 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1380 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
… | |
… | |
1348 | SvREFCNT_dec (grp->data); |
1425 | SvREFCNT_dec (grp->data); |
1349 | grp->data = (SV *)av; |
1426 | grp->data = (SV *)av; |
1350 | } |
1427 | } |
1351 | |
1428 | |
1352 | void |
1429 | void |
1353 | feed_limit (aio_req grp, int limit) |
1430 | limit (aio_req grp, int limit) |
1354 | CODE: |
1431 | CODE: |
1355 | grp->fd2 = limit; |
1432 | grp->fd2 = limit; |
1356 | aio_grp_feed (grp); |
1433 | aio_grp_feed (grp); |
1357 | |
1434 | |
1358 | void |
1435 | void |