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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
1 | #define _REENTRANT 1 |
8 | #define _REENTRANT 1 |
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9 | |
2 | #include <errno.h> |
10 | #include <errno.h> |
3 | |
11 | |
4 | #include "EXTERN.h" |
12 | #include "EXTERN.h" |
5 | #include "perl.h" |
13 | #include "perl.h" |
6 | #include "XSUB.h" |
14 | #include "XSUB.h" |
… | |
… | |
41 | # define NAME_MAX 4096 |
49 | # define NAME_MAX 4096 |
42 | #endif |
50 | #endif |
43 | |
51 | |
44 | #if __ia64 |
52 | #if __ia64 |
45 | # define STACKSIZE 65536 |
53 | # define STACKSIZE 65536 |
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54 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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55 | # define STACKSIZE PTHREAD_STACK_MIN |
46 | #else |
56 | #else |
47 | # define STACKSIZE 8192 |
57 | # define STACKSIZE 16384 |
48 | #endif |
58 | #endif |
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59 | |
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60 | /* buffer size for various temporary buffers */ |
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61 | #define AIO_BUFSIZE 65536 |
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62 | |
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63 | #define dBUF \ |
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64 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
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65 | if (!aio_buf) \ |
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66 | return -1; |
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67 | |
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68 | #define fBUF free (aio_buf) |
49 | |
69 | |
50 | enum { |
70 | enum { |
51 | REQ_QUIT, |
71 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
72 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
73 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
56 | REQ_FSYNC, REQ_FDATASYNC, |
76 | REQ_FSYNC, REQ_FDATASYNC, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
77 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
58 | REQ_READDIR, |
78 | REQ_READDIR, |
59 | REQ_LINK, REQ_SYMLINK, |
79 | REQ_LINK, REQ_SYMLINK, |
60 | REQ_GROUP, REQ_NOP, |
80 | REQ_GROUP, REQ_NOP, |
61 | REQ_SLEEP, |
81 | REQ_BUSY, |
62 | }; |
82 | }; |
63 | |
83 | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
84 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
85 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
86 | |
67 | typedef struct aio_cb |
87 | typedef struct aio_cb |
68 | { |
88 | { |
69 | struct aio_cb *volatile next; |
89 | struct aio_cb *volatile next; |
70 | |
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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 | |
90 | |
75 | SV *data, *callback; |
91 | SV *data, *callback; |
76 | SV *fh, *fh2; |
92 | SV *fh, *fh2; |
77 | void *dataptr, *data2ptr; |
93 | void *dataptr, *data2ptr; |
78 | Stat_t *statdata; |
94 | Stat_t *statdata; |
79 | off_t offset; |
95 | off_t offset; |
80 | size_t length; |
96 | size_t length; |
81 | ssize_t result; |
97 | ssize_t result; |
82 | |
98 | |
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99 | STRLEN dataoffset; |
83 | int type; |
100 | int type; |
84 | int fd, fd2; |
101 | int fd, fd2; |
85 | int errorno; |
102 | int errorno; |
86 | STRLEN dataoffset; |
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87 | mode_t mode; /* open */ |
103 | mode_t mode; /* open */ |
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104 | |
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105 | unsigned char flags; |
88 | unsigned char pri; |
106 | unsigned char pri; |
89 | unsigned char flags; |
107 | |
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108 | SV *self; /* the perl counterpart of this request, if any */ |
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109 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
90 | } aio_cb; |
110 | } aio_cb; |
91 | |
111 | |
92 | enum { |
112 | enum { |
93 | FLAG_CANCELLED = 0x01, |
113 | FLAG_CANCELLED = 0x01, |
94 | }; |
114 | }; |
95 | |
115 | |
96 | typedef aio_cb *aio_req; |
116 | typedef aio_cb *aio_req; |
97 | typedef aio_cb *aio_req_ornot; |
117 | typedef aio_cb *aio_req_ornot; |
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118 | |
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119 | enum { |
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120 | PRI_MIN = -4, |
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121 | PRI_MAX = 4, |
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122 | |
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123 | DEFAULT_PRI = 0, |
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124 | PRI_BIAS = -PRI_MIN, |
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125 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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126 | }; |
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127 | |
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128 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
98 | |
129 | |
99 | static int started, wanted; |
130 | static int started, wanted; |
100 | static volatile int nreqs; |
131 | static volatile int nreqs; |
101 | static int max_outstanding = 1<<30; |
132 | static int max_outstanding = 1<<30; |
102 | static int respipe [2]; |
133 | static int respipe [2]; |
103 | |
134 | |
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135 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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136 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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137 | #else |
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138 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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139 | #endif |
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140 | |
104 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
141 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
105 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
142 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
106 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
143 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
107 | |
144 | |
108 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
145 | /* |
109 | static volatile aio_req ress, rese; /* queue start, queue end */ |
146 | * a somewhat faster data structure might be nice, but |
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147 | * with 8 priorities this actually needs <20 insns |
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148 | * per shift, the most expensive operation. |
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149 | */ |
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150 | typedef struct { |
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151 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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152 | int size; |
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153 | } reqq; |
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154 | |
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155 | static reqq req_queue; |
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156 | static reqq res_queue; |
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157 | |
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158 | int reqq_push (reqq *q, aio_req req) |
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159 | { |
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160 | int pri = req->pri; |
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161 | req->next = 0; |
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162 | |
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163 | if (q->qe[pri]) |
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164 | { |
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165 | q->qe[pri]->next = req; |
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166 | q->qe[pri] = req; |
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167 | } |
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168 | else |
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169 | q->qe[pri] = q->qs[pri] = req; |
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170 | |
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171 | return q->size++; |
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172 | } |
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173 | |
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174 | aio_req reqq_shift (reqq *q) |
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175 | { |
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176 | int pri; |
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177 | |
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178 | if (!q->size) |
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179 | return 0; |
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180 | |
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181 | --q->size; |
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182 | |
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183 | for (pri = NUM_PRI; pri--; ) |
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184 | { |
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185 | aio_req req = q->qs[pri]; |
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186 | |
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187 | if (req) |
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188 | { |
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189 | if (!(q->qs[pri] = req->next)) |
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190 | q->qe[pri] = 0; |
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191 | |
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192 | return req; |
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193 | } |
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194 | } |
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195 | |
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196 | abort (); |
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197 | } |
110 | |
198 | |
111 | static void req_invoke (aio_req req); |
199 | static void req_invoke (aio_req req); |
112 | static void req_free (aio_req req); |
200 | static void req_free (aio_req req); |
113 | |
201 | |
114 | /* must be called at most once */ |
202 | /* must be called at most once */ |
… | |
… | |
148 | ENTER; |
236 | ENTER; |
149 | SAVETMPS; |
237 | SAVETMPS; |
150 | PUSHMARK (SP); |
238 | PUSHMARK (SP); |
151 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
239 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
152 | PUTBACK; |
240 | PUTBACK; |
153 | call_sv (grp->fh2, G_VOID | G_EVAL); |
241 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
154 | SPAGAIN; |
242 | SPAGAIN; |
155 | FREETMPS; |
243 | FREETMPS; |
156 | LEAVE; |
244 | LEAVE; |
157 | } |
245 | } |
158 | |
246 | |
… | |
… | |
181 | } |
269 | } |
182 | } |
270 | } |
183 | |
271 | |
184 | static void poll_wait () |
272 | static void poll_wait () |
185 | { |
273 | { |
186 | if (nreqs && !ress) |
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187 | { |
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188 | fd_set rfd; |
274 | fd_set rfd; |
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275 | |
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276 | while (nreqs) |
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277 | { |
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278 | int size; |
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279 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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280 | pthread_mutex_lock (&reslock); |
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281 | #endif |
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282 | size = res_queue.size; |
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283 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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284 | pthread_mutex_unlock (&reslock); |
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285 | #endif |
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286 | |
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287 | if (size) |
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288 | return; |
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289 | |
189 | FD_ZERO(&rfd); |
290 | FD_ZERO(&rfd); |
190 | FD_SET(respipe [0], &rfd); |
291 | FD_SET(respipe [0], &rfd); |
191 | |
292 | |
192 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
293 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
193 | } |
294 | } |
194 | } |
295 | } |
195 | |
296 | |
196 | static void req_invoke (aio_req req) |
297 | static void req_invoke (aio_req req) |
197 | { |
298 | { |
198 | dSP; |
299 | dSP; |
199 | int errorno = errno; |
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200 | |
300 | |
201 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
301 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
202 | return; |
302 | { |
203 | |
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204 | errno = req->errorno; |
303 | errno = req->errorno; |
205 | |
304 | |
206 | ENTER; |
305 | ENTER; |
207 | SAVETMPS; |
306 | SAVETMPS; |
208 | PUSHMARK (SP); |
307 | PUSHMARK (SP); |
209 | EXTEND (SP, 1); |
308 | EXTEND (SP, 1); |
210 | |
309 | |
211 | switch (req->type) |
310 | switch (req->type) |
212 | { |
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213 | case REQ_READDIR: |
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214 | { |
311 | { |
215 | SV *rv = &PL_sv_undef; |
312 | case REQ_READDIR: |
216 | |
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217 | if (req->result >= 0) |
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218 | { |
313 | { |
219 | char *buf = req->data2ptr; |
314 | SV *rv = &PL_sv_undef; |
220 | AV *av = newAV (); |
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221 | |
315 | |
222 | while (req->result) |
316 | if (req->result >= 0) |
223 | { |
317 | { |
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318 | char *buf = req->data2ptr; |
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319 | AV *av = newAV (); |
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320 | |
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321 | while (req->result) |
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322 | { |
224 | SV *sv = newSVpv (buf, 0); |
323 | SV *sv = newSVpv (buf, 0); |
225 | |
324 | |
226 | av_push (av, sv); |
325 | av_push (av, sv); |
227 | buf += SvCUR (sv) + 1; |
326 | buf += SvCUR (sv) + 1; |
228 | req->result--; |
327 | req->result--; |
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328 | } |
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329 | |
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330 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
229 | } |
331 | } |
230 | |
332 | |
231 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
333 | PUSHs (rv); |
232 | } |
334 | } |
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335 | break; |
233 | |
336 | |
234 | PUSHs (rv); |
337 | case REQ_OPEN: |
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338 | { |
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339 | /* convert fd to fh */ |
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340 | SV *fh; |
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341 | |
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342 | PUSHs (sv_2mortal (newSViv (req->result))); |
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343 | PUTBACK; |
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344 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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345 | SPAGAIN; |
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346 | |
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347 | fh = SvREFCNT_inc (POPs); |
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348 | |
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349 | PUSHMARK (SP); |
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350 | XPUSHs (sv_2mortal (fh)); |
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351 | } |
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352 | break; |
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353 | |
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354 | case REQ_GROUP: |
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355 | req->fd = 2; /* mark group as finished */ |
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356 | |
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357 | if (req->data) |
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358 | { |
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359 | int i; |
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360 | AV *av = (AV *)req->data; |
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361 | |
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362 | EXTEND (SP, AvFILL (av) + 1); |
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363 | for (i = 0; i <= AvFILL (av); ++i) |
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364 | PUSHs (*av_fetch (av, i, 0)); |
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365 | } |
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366 | break; |
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367 | |
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368 | case REQ_NOP: |
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369 | case REQ_BUSY: |
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370 | break; |
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371 | |
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372 | default: |
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373 | PUSHs (sv_2mortal (newSViv (req->result))); |
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374 | break; |
235 | } |
375 | } |
236 | break; |
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237 | |
376 | |
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 | |
377 | |
243 | PUSHs (sv_2mortal (newSViv (req->result))); |
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244 | PUTBACK; |
378 | 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); |
379 | call_sv (req->callback, G_VOID | G_EVAL); |
281 | SPAGAIN; |
380 | SPAGAIN; |
282 | |
381 | |
283 | FREETMPS; |
382 | FREETMPS; |
284 | LEAVE; |
383 | 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 | { |
384 | } |
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 | |
385 | |
295 | static void req_free (aio_req req) |
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296 | { |
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297 | if (req->grp) |
386 | if (req->grp) |
298 | { |
387 | { |
299 | aio_req grp = req->grp; |
388 | aio_req grp = req->grp; |
300 | |
389 | |
301 | /* unlink request */ |
390 | /* unlink request */ |
… | |
… | |
306 | grp->grp_first = req->grp_next; |
395 | grp->grp_first = req->grp_next; |
307 | |
396 | |
308 | aio_grp_dec (grp); |
397 | aio_grp_dec (grp); |
309 | } |
398 | } |
310 | |
399 | |
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400 | if (SvTRUE (ERRSV)) |
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401 | { |
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402 | req_free (req); |
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403 | croak (0); |
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404 | } |
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405 | } |
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406 | |
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407 | static void req_free (aio_req req) |
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408 | { |
311 | if (req->self) |
409 | if (req->self) |
312 | { |
410 | { |
313 | sv_unmagic (req->self, PERL_MAGIC_ext); |
411 | sv_unmagic (req->self, PERL_MAGIC_ext); |
314 | SvREFCNT_dec (req->self); |
412 | SvREFCNT_dec (req->self); |
315 | } |
413 | } |
… | |
… | |
347 | aio_req req; |
445 | aio_req req; |
348 | |
446 | |
349 | for (;;) |
447 | for (;;) |
350 | { |
448 | { |
351 | pthread_mutex_lock (&reslock); |
449 | pthread_mutex_lock (&reslock); |
352 | req = ress; |
450 | req = reqq_shift (&res_queue); |
353 | |
451 | |
354 | if (req) |
452 | if (req) |
355 | { |
453 | { |
356 | ress = req->next; |
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357 | |
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358 | if (!ress) |
454 | if (!res_queue.size) |
359 | { |
455 | { |
360 | /* read any signals sent by the worker threads */ |
456 | /* read any signals sent by the worker threads */ |
361 | char buf [32]; |
457 | char buf [32]; |
362 | while (read (respipe [0], buf, 32) == 32) |
458 | while (read (respipe [0], buf, 32) == 32) |
363 | ; |
459 | ; |
364 | |
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365 | rese = 0; |
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366 | } |
460 | } |
367 | } |
461 | } |
368 | |
462 | |
369 | pthread_mutex_unlock (&reslock); |
463 | pthread_mutex_unlock (&reslock); |
370 | |
464 | |
… | |
… | |
433 | start_thread (); |
527 | start_thread (); |
434 | |
528 | |
435 | ++nreqs; |
529 | ++nreqs; |
436 | |
530 | |
437 | pthread_mutex_lock (&reqlock); |
531 | pthread_mutex_lock (&reqlock); |
438 | |
532 | 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); |
533 | pthread_cond_signal (&reqwait); |
450 | pthread_mutex_unlock (&reqlock); |
534 | pthread_mutex_unlock (&reqlock); |
451 | |
535 | |
452 | if (nreqs > max_outstanding) |
536 | if (nreqs > max_outstanding) |
453 | for (;;) |
537 | for (;;) |
… | |
… | |
462 | } |
546 | } |
463 | |
547 | |
464 | static void end_thread (void) |
548 | static void end_thread (void) |
465 | { |
549 | { |
466 | aio_req req; |
550 | aio_req req; |
|
|
551 | |
467 | Newz (0, req, 1, aio_cb); |
552 | Newz (0, req, 1, aio_cb); |
|
|
553 | |
468 | req->type = REQ_QUIT; |
554 | req->type = REQ_QUIT; |
|
|
555 | req->pri = PRI_MAX + PRI_BIAS; |
469 | |
556 | |
470 | req_send (req); |
557 | req_send (req); |
471 | } |
558 | } |
472 | |
559 | |
473 | static void min_parallel (int nthreads) |
560 | static void min_parallel (int nthreads) |
… | |
… | |
560 | #if !HAVE_READAHEAD |
647 | #if !HAVE_READAHEAD |
561 | # define readahead aio_readahead |
648 | # define readahead aio_readahead |
562 | |
649 | |
563 | static ssize_t readahead (int fd, off_t offset, size_t count) |
650 | static ssize_t readahead (int fd, off_t offset, size_t count) |
564 | { |
651 | { |
565 | char readahead_buf[4096]; |
652 | dBUF; |
566 | |
653 | |
567 | while (count > 0) |
654 | while (count > 0) |
568 | { |
655 | { |
569 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
656 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
570 | |
657 | |
571 | pread (fd, readahead_buf, len, offset); |
658 | pread (fd, aio_buf, len, offset); |
572 | offset += len; |
659 | offset += len; |
573 | count -= len; |
660 | count -= len; |
574 | } |
661 | } |
|
|
662 | |
|
|
663 | fBUF; |
575 | |
664 | |
576 | errno = 0; |
665 | errno = 0; |
577 | } |
666 | } |
578 | #endif |
667 | #endif |
579 | |
668 | |
… | |
… | |
665 | #endif |
754 | #endif |
666 | ) |
755 | ) |
667 | ) |
756 | ) |
668 | { |
757 | { |
669 | /* emulate sendfile. this is a major pain in the ass */ |
758 | /* emulate sendfile. this is a major pain in the ass */ |
670 | char buf[4096]; |
759 | dBUF; |
|
|
760 | |
671 | res = 0; |
761 | res = 0; |
672 | |
762 | |
673 | while (count) |
763 | while (count) |
674 | { |
764 | { |
675 | ssize_t cnt; |
765 | ssize_t cnt; |
676 | |
766 | |
677 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
767 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
678 | |
768 | |
679 | if (cnt <= 0) |
769 | if (cnt <= 0) |
680 | { |
770 | { |
681 | if (cnt && !res) res = -1; |
771 | if (cnt && !res) res = -1; |
682 | break; |
772 | break; |
683 | } |
773 | } |
684 | |
774 | |
685 | cnt = write (ofd, buf, cnt); |
775 | cnt = write (ofd, aio_buf, cnt); |
686 | |
776 | |
687 | if (cnt <= 0) |
777 | if (cnt <= 0) |
688 | { |
778 | { |
689 | if (cnt && !res) res = -1; |
779 | if (cnt && !res) res = -1; |
690 | break; |
780 | break; |
… | |
… | |
692 | |
782 | |
693 | offset += cnt; |
783 | offset += cnt; |
694 | res += cnt; |
784 | res += cnt; |
695 | count -= cnt; |
785 | count -= cnt; |
696 | } |
786 | } |
|
|
787 | |
|
|
788 | fBUF; |
697 | } |
789 | } |
698 | |
790 | |
699 | return res; |
791 | return res; |
700 | } |
792 | } |
701 | |
793 | |
702 | /* read a full directory */ |
794 | /* read a full directory */ |
703 | static int scandir_ (const char *path, void **namesp) |
795 | static int scandir_ (const char *path, void **namesp) |
704 | { |
796 | { |
705 | DIR *dirp = opendir (path); |
797 | DIR *dirp; |
706 | union |
798 | union |
707 | { |
799 | { |
708 | struct dirent d; |
800 | struct dirent d; |
709 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
801 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
710 | } u; |
802 | } *u; |
711 | struct dirent *entp; |
803 | struct dirent *entp; |
712 | char *name, *names; |
804 | char *name, *names; |
713 | int memlen = 4096; |
805 | int memlen = 4096; |
714 | int memofs = 0; |
806 | int memofs = 0; |
715 | int res = 0; |
807 | int res = 0; |
716 | int errorno; |
808 | int errorno; |
717 | |
809 | |
|
|
810 | dirp = opendir (path); |
718 | if (!dirp) |
811 | if (!dirp) |
719 | return -1; |
812 | return -1; |
720 | |
813 | |
|
|
814 | u = malloc (sizeof (*u)); |
721 | names = malloc (memlen); |
815 | names = malloc (memlen); |
722 | |
816 | |
|
|
817 | if (u && names) |
723 | for (;;) |
818 | for (;;) |
724 | { |
819 | { |
|
|
820 | errno = 0; |
725 | errno = 0, readdir_r (dirp, &u.d, &entp); |
821 | readdir_r (dirp, &u->d, &entp); |
726 | |
822 | |
727 | if (!entp) |
823 | if (!entp) |
728 | break; |
824 | break; |
729 | |
825 | |
730 | name = entp->d_name; |
826 | name = entp->d_name; |
731 | |
827 | |
732 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
828 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
733 | { |
829 | { |
734 | int len = strlen (name) + 1; |
830 | int len = strlen (name) + 1; |
735 | |
831 | |
736 | res++; |
832 | res++; |
737 | |
833 | |
738 | while (memofs + len > memlen) |
834 | while (memofs + len > memlen) |
739 | { |
835 | { |
740 | memlen *= 2; |
836 | memlen *= 2; |
741 | names = realloc (names, memlen); |
837 | names = realloc (names, memlen); |
742 | if (!names) |
838 | if (!names) |
743 | break; |
839 | break; |
744 | } |
840 | } |
745 | |
841 | |
746 | memcpy (names + memofs, name, len); |
842 | memcpy (names + memofs, name, len); |
747 | memofs += len; |
843 | memofs += len; |
748 | } |
844 | } |
749 | } |
845 | } |
750 | |
846 | |
751 | errorno = errno; |
847 | errorno = errno; |
|
|
848 | free (u); |
752 | closedir (dirp); |
849 | closedir (dirp); |
753 | |
850 | |
754 | if (errorno) |
851 | if (errorno) |
755 | { |
852 | { |
756 | free (names); |
853 | free (names); |
… | |
… | |
773 | { |
870 | { |
774 | pthread_mutex_lock (&reqlock); |
871 | pthread_mutex_lock (&reqlock); |
775 | |
872 | |
776 | for (;;) |
873 | for (;;) |
777 | { |
874 | { |
778 | req = reqs; |
875 | req = reqq_shift (&req_queue); |
779 | |
|
|
780 | if (reqs) |
|
|
781 | { |
|
|
782 | reqs = reqs->next; |
|
|
783 | if (!reqs) reqe = 0; |
|
|
784 | } |
|
|
785 | |
876 | |
786 | if (req) |
877 | if (req) |
787 | break; |
878 | break; |
788 | |
879 | |
789 | pthread_cond_wait (&reqwait, &reqlock); |
880 | pthread_cond_wait (&reqwait, &reqlock); |
790 | } |
881 | } |
791 | |
882 | |
792 | pthread_mutex_unlock (&reqlock); |
883 | pthread_mutex_unlock (&reqlock); |
793 | |
884 | |
794 | errno = 0; /* strictly unnecessary */ |
885 | errno = 0; /* strictly unnecessary */ |
|
|
886 | type = req->type; /* remember type for QUIT check */ |
795 | |
887 | |
796 | if (!(req->flags & FLAG_CANCELLED)) |
888 | if (!(req->flags & FLAG_CANCELLED)) |
797 | switch (type = req->type) /* remember type for QUIT check */ |
889 | switch (type) |
798 | { |
890 | { |
799 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
891 | 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; |
892 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
801 | |
893 | |
802 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
894 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
816 | |
908 | |
817 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
909 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
818 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
910 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
819 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
911 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
820 | |
912 | |
821 | case REQ_SLEEP: |
913 | case REQ_BUSY: |
822 | { |
914 | { |
823 | struct timeval tv; |
915 | struct timeval tv; |
824 | |
916 | |
825 | tv.tv_sec = req->fd; |
917 | tv.tv_sec = req->fd; |
826 | tv.tv_usec = req->fd2; |
918 | tv.tv_usec = req->fd2; |
… | |
… | |
840 | |
932 | |
841 | req->errorno = errno; |
933 | req->errorno = errno; |
842 | |
934 | |
843 | pthread_mutex_lock (&reslock); |
935 | pthread_mutex_lock (&reslock); |
844 | |
936 | |
845 | req->next = 0; |
937 | 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 */ |
938 | /* write a dummy byte to the pipe so fh becomes ready */ |
857 | write (respipe [1], &respipe, 1); |
939 | write (respipe [1], &respipe, 1); |
858 | } |
|
|
859 | |
940 | |
860 | pthread_mutex_unlock (&reslock); |
941 | pthread_mutex_unlock (&reslock); |
861 | } |
942 | } |
862 | while (type != REQ_QUIT); |
943 | while (type != REQ_QUIT); |
863 | |
944 | |
… | |
… | |
894 | { |
975 | { |
895 | aio_req prv; |
976 | aio_req prv; |
896 | |
977 | |
897 | started = 0; |
978 | started = 0; |
898 | |
979 | |
899 | while (reqs) |
980 | while (prv = reqq_shift (&req_queue)) |
900 | { |
|
|
901 | prv = reqs; |
|
|
902 | reqs = prv->next; |
|
|
903 | req_free (prv); |
981 | req_free (prv); |
904 | } |
|
|
905 | |
982 | |
906 | reqs = reqe = 0; |
983 | while (prv = reqq_shift (&res_queue)) |
907 | |
|
|
908 | while (ress) |
|
|
909 | { |
|
|
910 | prv = ress; |
|
|
911 | ress = prv->next; |
|
|
912 | req_free (prv); |
984 | req_free (prv); |
913 | } |
985 | |
914 | |
|
|
915 | ress = rese = 0; |
|
|
916 | |
|
|
917 | close (respipe [0]); |
986 | close (respipe [0]); |
918 | close (respipe [1]); |
987 | close (respipe [1]); |
919 | create_pipe (); |
988 | create_pipe (); |
920 | |
989 | |
921 | atfork_parent (); |
990 | atfork_parent (); |
922 | } |
991 | } |
923 | |
992 | |
924 | #define dREQ \ |
993 | #define dREQ \ |
925 | aio_req req; \ |
994 | aio_req req; \ |
|
|
995 | int req_pri = next_pri; \ |
|
|
996 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
926 | \ |
997 | \ |
927 | if (SvOK (callback) && !SvROK (callback)) \ |
998 | if (SvOK (callback) && !SvROK (callback)) \ |
928 | croak ("callback must be undef or of reference type"); \ |
999 | croak ("callback must be undef or of reference type"); \ |
929 | \ |
1000 | \ |
930 | Newz (0, req, 1, aio_cb); \ |
1001 | Newz (0, req, 1, aio_cb); \ |
931 | if (!req) \ |
1002 | if (!req) \ |
932 | croak ("out of memory during aio_req allocation"); \ |
1003 | croak ("out of memory during aio_req allocation"); \ |
933 | \ |
1004 | \ |
934 | req->callback = newSVsv (callback) |
1005 | req->callback = newSVsv (callback); \ |
|
|
1006 | req->pri = req_pri |
935 | |
1007 | |
936 | #define REQ_SEND \ |
1008 | #define REQ_SEND \ |
937 | req_send (req); \ |
1009 | req_send (req); \ |
938 | \ |
1010 | \ |
939 | if (GIMME_V != G_VOID) \ |
1011 | if (GIMME_V != G_VOID) \ |
… | |
… | |
1193 | |
1265 | |
1194 | REQ_SEND; |
1266 | REQ_SEND; |
1195 | } |
1267 | } |
1196 | |
1268 | |
1197 | void |
1269 | void |
1198 | aio_sleep (delay,callback=&PL_sv_undef) |
1270 | aio_busy (delay,callback=&PL_sv_undef) |
1199 | double delay |
1271 | double delay |
1200 | SV * callback |
1272 | SV * callback |
1201 | PPCODE: |
1273 | PPCODE: |
1202 | { |
1274 | { |
1203 | dREQ; |
1275 | dREQ; |
1204 | |
1276 | |
1205 | req->type = REQ_SLEEP; |
1277 | req->type = REQ_BUSY; |
1206 | req->fd = delay < 0. ? 0 : delay; |
1278 | req->fd = delay < 0. ? 0 : delay; |
1207 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1279 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1208 | |
1280 | |
1209 | REQ_SEND; |
1281 | REQ_SEND; |
1210 | } |
1282 | } |
… | |
… | |
1214 | SV * callback |
1286 | SV * callback |
1215 | PROTOTYPE: ;$ |
1287 | PROTOTYPE: ;$ |
1216 | PPCODE: |
1288 | PPCODE: |
1217 | { |
1289 | { |
1218 | dREQ; |
1290 | dREQ; |
|
|
1291 | |
1219 | req->type = REQ_GROUP; |
1292 | req->type = REQ_GROUP; |
1220 | req_send (req); |
1293 | req_send (req); |
|
|
1294 | |
1221 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1295 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1222 | } |
1296 | } |
1223 | |
1297 | |
1224 | void |
1298 | void |
1225 | aio_nop (callback=&PL_sv_undef) |
1299 | aio_nop (callback=&PL_sv_undef) |
… | |
… | |
1230 | |
1304 | |
1231 | req->type = REQ_NOP; |
1305 | req->type = REQ_NOP; |
1232 | |
1306 | |
1233 | REQ_SEND; |
1307 | REQ_SEND; |
1234 | } |
1308 | } |
|
|
1309 | |
|
|
1310 | void |
|
|
1311 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1312 | CODE: |
|
|
1313 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1314 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1315 | next_pri = pri + PRI_BIAS; |
|
|
1316 | |
|
|
1317 | void |
|
|
1318 | aioreq_nice (int nice = 0) |
|
|
1319 | CODE: |
|
|
1320 | nice = next_pri - nice; |
|
|
1321 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1322 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1323 | next_pri = nice + PRI_BIAS; |
1235 | |
1324 | |
1236 | void |
1325 | void |
1237 | flush () |
1326 | flush () |
1238 | PROTOTYPE: |
1327 | PROTOTYPE: |
1239 | CODE: |
1328 | CODE: |
… | |
… | |
1288 | |
1377 | |
1289 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1378 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1290 | |
1379 | |
1291 | void |
1380 | void |
1292 | cancel (aio_req_ornot req) |
1381 | cancel (aio_req_ornot req) |
1293 | PROTOTYPE: |
|
|
1294 | CODE: |
1382 | CODE: |
1295 | req_cancel (req); |
1383 | req_cancel (req); |
1296 | |
1384 | |
1297 | void |
1385 | void |
1298 | cb (aio_req req, SV *callback=&PL_sv_undef) |
1386 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1299 | CODE: |
1387 | CODE: |
1300 | SvREFCNT_dec (req->callback); |
1388 | SvREFCNT_dec (req->callback); |
1301 | req->callback = newSVsv (callback); |
1389 | req->callback = newSVsv (callback); |
1302 | |
1390 | |
1303 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1391 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
… | |
… | |
1348 | SvREFCNT_dec (grp->data); |
1436 | SvREFCNT_dec (grp->data); |
1349 | grp->data = (SV *)av; |
1437 | grp->data = (SV *)av; |
1350 | } |
1438 | } |
1351 | |
1439 | |
1352 | void |
1440 | void |
1353 | feed_limit (aio_req grp, int limit) |
1441 | limit (aio_req grp, int limit) |
1354 | CODE: |
1442 | CODE: |
1355 | grp->fd2 = limit; |
1443 | grp->fd2 = limit; |
1356 | aio_grp_feed (grp); |
1444 | aio_grp_feed (grp); |
1357 | |
1445 | |
1358 | void |
1446 | void |