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9 | |
9 | |
10 | #include <pthread.h> |
10 | #include <pthread.h> |
11 | |
11 | |
12 | #include <stddef.h> |
12 | #include <stddef.h> |
13 | #include <errno.h> |
13 | #include <errno.h> |
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14 | #include <sys/time.h> |
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15 | #include <sys/select.h> |
14 | #include <sys/types.h> |
16 | #include <sys/types.h> |
15 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
16 | #include <limits.h> |
18 | #include <limits.h> |
17 | #include <unistd.h> |
19 | #include <unistd.h> |
18 | #include <fcntl.h> |
20 | #include <fcntl.h> |
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53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
56 | REQ_READDIR, |
58 | REQ_READDIR, |
57 | REQ_LINK, REQ_SYMLINK, |
59 | REQ_LINK, REQ_SYMLINK, |
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60 | REQ_SLEEP, |
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61 | REQ_GROUP, |
58 | }; |
62 | }; |
59 | |
63 | |
60 | #define AIO_CB_KLASS "IO::AIO::CB" |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
61 | |
66 | |
62 | typedef struct aio_cb |
67 | typedef struct aio_cb |
63 | { |
68 | { |
64 | struct aio_cb *grp_prev, *grp_next; |
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65 | struct aio_grp *grp; |
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66 | |
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67 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
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70 | |
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71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
68 | |
72 | |
69 | SV *self; /* the perl counterpart of this request, if any */ |
73 | SV *self; /* the perl counterpart of this request, if any */ |
70 | |
74 | |
71 | SV *data, *callback; |
75 | SV *data, *callback; |
72 | SV *fh, *fh2; |
76 | SV *fh, *fh2; |
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97 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
98 | |
102 | |
99 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
100 | static volatile aio_req ress, rese; /* queue start, queue end */ |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
101 | |
105 | |
102 | typedef struct aio_grp |
106 | static void req_invoke (aio_req req); |
103 | { |
107 | static void req_free (aio_req req); |
104 | struct aio_cb *first, *last; |
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105 | SV *callback; |
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106 | int busycount; |
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107 | } aio_grp; |
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108 | |
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109 | static void aio_grp_begin (aio_grp *grp) |
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110 | { |
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111 | ++grp->busycount; |
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112 | } |
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113 | |
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114 | static void aio_grp_end (aio_grp *grp) |
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115 | { |
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116 | --grp->busycount; |
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117 | |
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118 | if (grp->busycount) |
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119 | return; |
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120 | |
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121 | SvREFCNT_dec (grp->callback); |
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122 | grp->callback = 0; |
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123 | } |
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124 | |
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125 | static aio_grp *aio_grp_new () |
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126 | { |
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127 | aio_grp *grp; |
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128 | |
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129 | Newz (0, grp, 1, aio_grp); |
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130 | aio_grp_begin (grp); |
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131 | |
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132 | return grp; |
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133 | } |
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134 | |
108 | |
135 | /* must be called at most once */ |
109 | /* must be called at most once */ |
136 | static SV *req_sv (aio_req req) |
110 | static SV *req_sv (aio_req req, const char *klass) |
137 | { |
111 | { |
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112 | if (!req->self) |
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113 | { |
138 | req->self = (SV *)newHV (); |
114 | req->self = (SV *)newHV (); |
139 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
115 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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116 | } |
140 | |
117 | |
141 | return sv_bless (newRV_noinc (req->self), gv_stashpv (AIO_CB_KLASS, 1)); |
118 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
142 | } |
119 | } |
143 | |
120 | |
144 | static aio_req SvAIO_REQ (SV *sv) |
121 | static aio_req SvAIO_REQ (SV *sv) |
145 | { |
122 | { |
146 | if (!sv_derived_from (sv, AIO_CB_KLASS) || !SvROK (sv)) |
123 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
147 | croak ("object of class " AIO_CB_KLASS " expected"); |
124 | croak ("object of class " AIO_REQ_KLASS " expected"); |
148 | |
125 | |
149 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
126 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
150 | |
127 | |
151 | return mg ? (aio_req)mg->mg_ptr : 0; |
128 | return mg ? (aio_req)mg->mg_ptr : 0; |
152 | } |
129 | } |
153 | |
130 | |
154 | static void req_free (aio_req req) |
131 | static void aio_grp_feed (aio_req grp) |
155 | { |
132 | { |
156 | if (req->self) |
133 | while (grp->length < grp->fd2) |
157 | { |
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158 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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159 | SvREFCNT_dec (req->self); |
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160 | } |
134 | { |
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135 | int old_len = grp->length; |
161 | |
136 | |
162 | if (req->data) |
137 | if (grp->fh2 && SvOK (grp->fh2)) |
163 | SvREFCNT_dec (req->data); |
138 | { |
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139 | dSP; |
164 | |
140 | |
165 | if (req->fh) |
141 | ENTER; |
166 | SvREFCNT_dec (req->fh); |
142 | SAVETMPS; |
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143 | PUSHMARK (SP); |
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144 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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145 | PUTBACK; |
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146 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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147 | SPAGAIN; |
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148 | FREETMPS; |
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149 | LEAVE; |
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150 | } |
167 | |
151 | |
168 | if (req->fh2) |
152 | /* stop if no progress has been made */ |
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153 | if (old_len == grp->length) |
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154 | { |
169 | SvREFCNT_dec (req->fh2); |
155 | SvREFCNT_dec (grp->fh2); |
170 | |
156 | grp->fh2 = 0; |
171 | if (req->statdata) |
157 | break; |
172 | Safefree (req->statdata); |
158 | } |
173 | |
159 | } |
174 | if (req->callback) |
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175 | SvREFCNT_dec (req->callback); |
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176 | |
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177 | if (req->type == REQ_READDIR && req->result >= 0) |
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178 | free (req->data2ptr); |
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179 | |
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180 | Safefree (req); |
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181 | } |
160 | } |
182 | |
161 | |
183 | static void |
162 | static void aio_grp_dec (aio_req grp) |
184 | poll_wait () |
163 | { |
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164 | --grp->length; |
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165 | |
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166 | /* call feeder, if applicable */ |
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167 | aio_grp_feed (grp); |
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168 | |
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169 | /* finish, if done */ |
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170 | if (!grp->length && grp->fd) |
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171 | { |
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172 | req_invoke (grp); |
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173 | req_free (grp); |
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174 | } |
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175 | } |
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176 | |
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177 | static void poll_wait () |
185 | { |
178 | { |
186 | if (nreqs && !ress) |
179 | if (nreqs && !ress) |
187 | { |
180 | { |
188 | fd_set rfd; |
181 | fd_set rfd; |
189 | FD_ZERO(&rfd); |
182 | FD_ZERO(&rfd); |
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191 | |
184 | |
192 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
185 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
193 | } |
186 | } |
194 | } |
187 | } |
195 | |
188 | |
196 | static int |
189 | static void req_invoke (aio_req req) |
197 | poll_cb () |
190 | { |
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191 | dSP; |
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192 | int errorno = errno; |
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193 | |
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194 | if (req->cancelled || !SvOK (req->callback)) |
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195 | return; |
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196 | |
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197 | errno = req->errorno; |
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198 | |
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199 | ENTER; |
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200 | SAVETMPS; |
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201 | PUSHMARK (SP); |
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202 | EXTEND (SP, 1); |
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203 | |
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204 | switch (req->type) |
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205 | { |
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206 | case REQ_READDIR: |
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207 | { |
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208 | SV *rv = &PL_sv_undef; |
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209 | |
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210 | if (req->result >= 0) |
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211 | { |
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212 | char *buf = req->data2ptr; |
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213 | AV *av = newAV (); |
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214 | |
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215 | while (req->result) |
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216 | { |
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217 | SV *sv = newSVpv (buf, 0); |
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218 | |
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219 | av_push (av, sv); |
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220 | buf += SvCUR (sv) + 1; |
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221 | req->result--; |
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222 | } |
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223 | |
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224 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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225 | } |
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226 | |
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227 | PUSHs (rv); |
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228 | } |
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229 | break; |
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230 | |
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231 | case REQ_OPEN: |
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232 | { |
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233 | /* convert fd to fh */ |
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234 | SV *fh; |
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235 | |
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236 | PUSHs (sv_2mortal (newSViv (req->result))); |
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237 | PUTBACK; |
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238 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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239 | SPAGAIN; |
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240 | |
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241 | fh = SvREFCNT_inc (POPs); |
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242 | |
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243 | PUSHMARK (SP); |
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244 | XPUSHs (sv_2mortal (fh)); |
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245 | } |
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246 | break; |
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247 | |
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248 | case REQ_GROUP: |
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249 | req->fd = 2; /* mark group as finished */ |
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250 | |
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251 | if (req->data) |
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252 | { |
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253 | int i; |
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254 | AV *av = (AV *)req->data; |
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255 | |
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256 | EXTEND (SP, AvFILL (av) + 1); |
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257 | for (i = 0; i <= AvFILL (av); ++i) |
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258 | PUSHs (*av_fetch (av, i, 0)); |
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259 | } |
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260 | break; |
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261 | |
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262 | case REQ_SLEEP: |
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263 | break; |
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264 | |
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265 | default: |
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266 | PUSHs (sv_2mortal (newSViv (req->result))); |
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267 | break; |
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268 | } |
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269 | |
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270 | |
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271 | PUTBACK; |
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272 | call_sv (req->callback, G_VOID | G_EVAL); |
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273 | SPAGAIN; |
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274 | |
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275 | FREETMPS; |
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276 | LEAVE; |
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277 | |
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278 | errno = errorno; |
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279 | |
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280 | if (SvTRUE (ERRSV)) |
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281 | { |
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282 | req_free (req); |
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283 | croak (0); |
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284 | } |
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285 | } |
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286 | |
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287 | static void req_free (aio_req req) |
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288 | { |
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289 | if (req->grp) |
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290 | { |
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291 | aio_req grp = req->grp; |
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292 | |
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293 | /* unlink request */ |
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294 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
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295 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
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296 | |
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297 | if (grp->grp_first == req) |
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298 | grp->grp_first = req->grp_next; |
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299 | |
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300 | aio_grp_dec (grp); |
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301 | } |
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302 | |
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303 | if (req->self) |
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304 | { |
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305 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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306 | SvREFCNT_dec (req->self); |
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307 | } |
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308 | |
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309 | SvREFCNT_dec (req->data); |
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310 | SvREFCNT_dec (req->fh); |
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311 | SvREFCNT_dec (req->fh2); |
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312 | SvREFCNT_dec (req->callback); |
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313 | Safefree (req->statdata); |
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314 | |
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315 | if (req->type == REQ_READDIR && req->result >= 0) |
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316 | free (req->data2ptr); |
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317 | |
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318 | Safefree (req); |
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319 | } |
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320 | |
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321 | static void req_cancel (aio_req req) |
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322 | { |
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323 | req->cancelled = 1; |
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324 | |
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325 | if (req->type == REQ_GROUP) |
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326 | { |
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327 | aio_req sub; |
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328 | |
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329 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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330 | req_cancel (sub); |
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331 | } |
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332 | } |
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333 | |
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334 | static int poll_cb () |
198 | { |
335 | { |
199 | dSP; |
336 | dSP; |
200 | int count = 0; |
337 | int count = 0; |
201 | int do_croak = 0; |
338 | int do_croak = 0; |
202 | aio_req req; |
339 | aio_req req; |
… | |
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224 | pthread_mutex_unlock (&reslock); |
361 | pthread_mutex_unlock (&reslock); |
225 | |
362 | |
226 | if (!req) |
363 | if (!req) |
227 | break; |
364 | break; |
228 | |
365 | |
229 | nreqs--; |
366 | --nreqs; |
230 | |
367 | |
231 | if (req->type == REQ_QUIT) |
368 | if (req->type == REQ_QUIT) |
232 | started--; |
369 | started--; |
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370 | else if (req->type == REQ_GROUP && req->length) |
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371 | { |
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372 | req->fd = 1; /* mark request as delayed */ |
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373 | continue; |
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374 | } |
233 | else |
375 | else |
234 | { |
376 | { |
235 | int errorno = errno; |
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236 | errno = req->errorno; |
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237 | |
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238 | if (req->type == REQ_READ) |
377 | if (req->type == REQ_READ) |
239 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
378 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
240 | |
379 | |
241 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
380 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
242 | SvREADONLY_off (req->data); |
381 | SvREADONLY_off (req->data); |
… | |
… | |
246 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
385 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
247 | PL_laststatval = req->result; |
386 | PL_laststatval = req->result; |
248 | PL_statcache = *(req->statdata); |
387 | PL_statcache = *(req->statdata); |
249 | } |
388 | } |
250 | |
389 | |
251 | ENTER; |
390 | req_invoke (req); |
252 | PUSHMARK (SP); |
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253 | |
391 | |
254 | if (req->type == REQ_READDIR) |
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255 | { |
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256 | SV *rv = &PL_sv_undef; |
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257 | |
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258 | if (req->result >= 0) |
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259 | { |
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260 | char *buf = req->data2ptr; |
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261 | AV *av = newAV (); |
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262 | |
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263 | while (req->result) |
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264 | { |
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265 | SV *sv = newSVpv (buf, 0); |
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266 | |
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267 | av_push (av, sv); |
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268 | buf += SvCUR (sv) + 1; |
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269 | req->result--; |
|
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270 | } |
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271 | |
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272 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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273 | } |
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274 | |
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275 | XPUSHs (rv); |
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276 | } |
|
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277 | else |
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278 | { |
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279 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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280 | |
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281 | if (req->type == REQ_OPEN) |
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282 | { |
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283 | /* convert fd to fh */ |
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284 | SV *fh; |
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285 | |
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286 | PUTBACK; |
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287 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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288 | SPAGAIN; |
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289 | |
|
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290 | fh = SvREFCNT_inc (POPs); |
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291 | |
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292 | PUSHMARK (SP); |
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293 | XPUSHs (sv_2mortal (fh)); |
|
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294 | } |
|
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295 | } |
|
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296 | |
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297 | if (SvOK (req->callback) && !req->cancelled) |
|
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298 | { |
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299 | PUTBACK; |
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300 | call_sv (req->callback, G_VOID | G_EVAL); |
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301 | SPAGAIN; |
|
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302 | |
|
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303 | if (SvTRUE (ERRSV)) |
|
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304 | { |
|
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305 | req_free (req); |
|
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306 | croak (0); |
|
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307 | } |
|
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308 | } |
|
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309 | |
|
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310 | LEAVE; |
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311 | |
|
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312 | errno = errorno; |
|
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313 | count++; |
392 | count++; |
314 | } |
393 | } |
315 | |
394 | |
316 | req_free (req); |
395 | req_free (req); |
317 | } |
396 | } |
… | |
… | |
319 | return count; |
398 | return count; |
320 | } |
399 | } |
321 | |
400 | |
322 | static void *aio_proc(void *arg); |
401 | static void *aio_proc(void *arg); |
323 | |
402 | |
324 | static void |
|
|
325 | start_thread (void) |
403 | static void start_thread (void) |
326 | { |
404 | { |
327 | sigset_t fullsigset, oldsigset; |
405 | sigset_t fullsigset, oldsigset; |
328 | pthread_t tid; |
406 | pthread_t tid; |
329 | pthread_attr_t attr; |
407 | pthread_attr_t attr; |
330 | |
408 | |
… | |
… | |
339 | started++; |
417 | started++; |
340 | |
418 | |
341 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
419 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
342 | } |
420 | } |
343 | |
421 | |
344 | static void |
|
|
345 | req_send (aio_req req) |
422 | static void req_send (aio_req req) |
346 | { |
423 | { |
347 | while (started < wanted && nreqs >= started) |
424 | while (started < wanted && nreqs >= started) |
348 | start_thread (); |
425 | start_thread (); |
349 | |
426 | |
350 | nreqs++; |
427 | ++nreqs; |
351 | |
428 | |
352 | pthread_mutex_lock (&reqlock); |
429 | pthread_mutex_lock (&reqlock); |
353 | |
430 | |
354 | req->next = 0; |
431 | req->next = 0; |
355 | |
432 | |
… | |
… | |
374 | |
451 | |
375 | poll_wait (); |
452 | poll_wait (); |
376 | } |
453 | } |
377 | } |
454 | } |
378 | |
455 | |
379 | static void |
456 | static void end_thread (void) |
380 | end_thread (void) |
|
|
381 | { |
457 | { |
382 | aio_req req; |
458 | aio_req req; |
383 | Newz (0, req, 1, aio_cb); |
459 | Newz (0, req, 1, aio_cb); |
384 | req->type = REQ_QUIT; |
460 | req->type = REQ_QUIT; |
385 | |
461 | |
… | |
… | |
436 | * normal read/write by using a mutex. slows down execution a lot, |
512 | * normal read/write by using a mutex. slows down execution a lot, |
437 | * but that's your problem, not mine. |
513 | * but that's your problem, not mine. |
438 | */ |
514 | */ |
439 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
515 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
440 | |
516 | |
441 | static ssize_t |
517 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
442 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
443 | { |
518 | { |
444 | ssize_t res; |
519 | ssize_t res; |
445 | off_t ooffset; |
520 | off_t ooffset; |
446 | |
521 | |
447 | pthread_mutex_lock (&preadwritelock); |
522 | pthread_mutex_lock (&preadwritelock); |
… | |
… | |
452 | pthread_mutex_unlock (&preadwritelock); |
527 | pthread_mutex_unlock (&preadwritelock); |
453 | |
528 | |
454 | return res; |
529 | return res; |
455 | } |
530 | } |
456 | |
531 | |
457 | static ssize_t |
|
|
458 | pwrite (int fd, void *buf, size_t count, off_t offset) |
532 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
459 | { |
533 | { |
460 | ssize_t res; |
534 | ssize_t res; |
461 | off_t ooffset; |
535 | off_t ooffset; |
462 | |
536 | |
463 | pthread_mutex_lock (&preadwritelock); |
537 | pthread_mutex_lock (&preadwritelock); |
… | |
… | |
476 | #endif |
550 | #endif |
477 | |
551 | |
478 | #if !HAVE_READAHEAD |
552 | #if !HAVE_READAHEAD |
479 | # define readahead aio_readahead |
553 | # define readahead aio_readahead |
480 | |
554 | |
481 | static ssize_t |
|
|
482 | readahead (int fd, off_t offset, size_t count) |
555 | static ssize_t readahead (int fd, off_t offset, size_t count) |
483 | { |
556 | { |
484 | char readahead_buf[4096]; |
557 | char readahead_buf[4096]; |
485 | |
558 | |
486 | while (count > 0) |
559 | while (count > 0) |
487 | { |
560 | { |
… | |
… | |
499 | #if !HAVE_READDIR_R |
572 | #if !HAVE_READDIR_R |
500 | # define readdir_r aio_readdir_r |
573 | # define readdir_r aio_readdir_r |
501 | |
574 | |
502 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
575 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
503 | |
576 | |
504 | static int |
|
|
505 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
577 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
506 | { |
578 | { |
507 | struct dirent *e; |
579 | struct dirent *e; |
508 | int errorno; |
580 | int errorno; |
509 | |
581 | |
510 | pthread_mutex_lock (&readdirlock); |
582 | pthread_mutex_lock (&readdirlock); |
… | |
… | |
526 | return e ? 0 : -1; |
598 | return e ? 0 : -1; |
527 | } |
599 | } |
528 | #endif |
600 | #endif |
529 | |
601 | |
530 | /* sendfile always needs emulation */ |
602 | /* sendfile always needs emulation */ |
531 | static ssize_t |
|
|
532 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
603 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
533 | { |
604 | { |
534 | ssize_t res; |
605 | ssize_t res; |
535 | |
606 | |
536 | if (!count) |
607 | if (!count) |
537 | return 0; |
608 | return 0; |
… | |
… | |
619 | |
690 | |
620 | return res; |
691 | return res; |
621 | } |
692 | } |
622 | |
693 | |
623 | /* read a full directory */ |
694 | /* read a full directory */ |
624 | static int |
|
|
625 | scandir_ (const char *path, void **namesp) |
695 | static int scandir_ (const char *path, void **namesp) |
626 | { |
696 | { |
627 | DIR *dirp = opendir (path); |
697 | DIR *dirp = opendir (path); |
628 | union |
698 | union |
629 | { |
699 | { |
630 | struct dirent d; |
700 | struct dirent d; |
… | |
… | |
684 | return res; |
754 | return res; |
685 | } |
755 | } |
686 | |
756 | |
687 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
688 | |
758 | |
689 | static void * |
|
|
690 | aio_proc (void *thr_arg) |
759 | static void *aio_proc (void *thr_arg) |
691 | { |
760 | { |
692 | aio_req req; |
761 | aio_req req; |
693 | int type; |
762 | int type; |
694 | |
763 | |
695 | do |
764 | do |
… | |
… | |
715 | pthread_mutex_unlock (&reqlock); |
784 | pthread_mutex_unlock (&reqlock); |
716 | |
785 | |
717 | errno = 0; /* strictly unnecessary */ |
786 | errno = 0; /* strictly unnecessary */ |
718 | |
787 | |
719 | if (!req->cancelled) |
788 | if (!req->cancelled) |
720 | switch (req->type) |
789 | switch (type = req->type) /* remember type for QUIT check */ |
721 | { |
790 | { |
722 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
791 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
723 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
792 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
724 | |
793 | |
725 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
794 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
739 | |
808 | |
740 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
809 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
741 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
810 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
742 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
811 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
743 | |
812 | |
|
|
813 | case REQ_SLEEP: |
|
|
814 | { |
|
|
815 | struct timeval tv; |
|
|
816 | |
|
|
817 | tv.tv_sec = req->fd; |
|
|
818 | tv.tv_usec = req->fd2; |
|
|
819 | |
|
|
820 | req->result = select (0, 0, 0, 0, &tv); |
|
|
821 | } |
|
|
822 | |
744 | case REQ_QUIT: |
823 | case REQ_QUIT: |
745 | break; |
824 | break; |
746 | |
825 | |
747 | default: |
826 | default: |
748 | req->result = ENOSYS; |
827 | req->result = ENOSYS; |
… | |
… | |
753 | |
832 | |
754 | pthread_mutex_lock (&reslock); |
833 | pthread_mutex_lock (&reslock); |
755 | |
834 | |
756 | req->next = 0; |
835 | req->next = 0; |
757 | |
836 | |
|
|
837 | printf ("queue rese %p\n", rese);//D |
758 | if (rese) |
838 | if (rese) |
759 | { |
839 | { |
760 | rese->next = req; |
840 | rese->next = req; |
761 | rese = req; |
841 | rese = req; |
762 | } |
842 | } |
… | |
… | |
846 | |
926 | |
847 | #define REQ_SEND \ |
927 | #define REQ_SEND \ |
848 | req_send (req); \ |
928 | req_send (req); \ |
849 | \ |
929 | \ |
850 | if (GIMME_V != G_VOID) \ |
930 | if (GIMME_V != G_VOID) \ |
851 | XPUSHs (req_sv (req)); |
931 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
852 | |
932 | |
853 | MODULE = IO::AIO PACKAGE = IO::AIO |
933 | MODULE = IO::AIO PACKAGE = IO::AIO |
854 | |
934 | |
855 | PROTOTYPES: ENABLE |
935 | PROTOTYPES: ENABLE |
856 | |
936 | |
… | |
… | |
1103 | req->dataptr = SvPVbyte_nolen (req->data); |
1183 | req->dataptr = SvPVbyte_nolen (req->data); |
1104 | |
1184 | |
1105 | REQ_SEND; |
1185 | REQ_SEND; |
1106 | } |
1186 | } |
1107 | |
1187 | |
1108 | #if 0 |
|
|
1109 | |
|
|
1110 | # undocumented, because it does not cancel active requests |
|
|
1111 | void |
1188 | void |
1112 | cancel_most_requests () |
1189 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1190 | double delay |
|
|
1191 | SV * callback |
|
|
1192 | PPCODE: |
|
|
1193 | { |
|
|
1194 | dREQ; |
|
|
1195 | |
|
|
1196 | req->type = REQ_SLEEP; |
|
|
1197 | req->fd = delay < 0. ? 0 : delay; |
|
|
1198 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1199 | |
|
|
1200 | REQ_SEND; |
|
|
1201 | } |
|
|
1202 | |
|
|
1203 | void |
|
|
1204 | aio_group (callback=&PL_sv_undef) |
|
|
1205 | SV * callback |
1113 | PROTOTYPE: |
1206 | PROTOTYPE: ;$ |
1114 | CODE: |
1207 | PPCODE: |
1115 | { |
1208 | { |
1116 | aio_req *req; |
1209 | dREQ; |
1117 | |
1210 | req->type = REQ_GROUP; |
1118 | pthread_mutex_lock (&reqlock); |
1211 | req_send (req); |
1119 | for (req = reqs; req; req = req->next) |
1212 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1120 | req->flags |= 1; |
|
|
1121 | pthread_mutex_unlock (&reqlock); |
|
|
1122 | |
|
|
1123 | pthread_mutex_lock (&reslock); |
|
|
1124 | for (req = ress; req; req = req->next) |
|
|
1125 | req->flags |= 1; |
|
|
1126 | pthread_mutex_unlock (&reslock); |
|
|
1127 | } |
1213 | } |
1128 | |
|
|
1129 | #endif |
|
|
1130 | |
1214 | |
1131 | void |
1215 | void |
1132 | flush () |
1216 | flush () |
1133 | PROTOTYPE: |
1217 | PROTOTYPE: |
1134 | CODE: |
1218 | CODE: |
… | |
… | |
1177 | CODE: |
1261 | CODE: |
1178 | RETVAL = nreqs; |
1262 | RETVAL = nreqs; |
1179 | OUTPUT: |
1263 | OUTPUT: |
1180 | RETVAL |
1264 | RETVAL |
1181 | |
1265 | |
|
|
1266 | PROTOTYPES: DISABLE |
|
|
1267 | |
1182 | MODULE = IO::AIO PACKAGE = IO::AIO::CB |
1268 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1183 | |
1269 | |
1184 | void |
1270 | void |
1185 | cancel (aio_req_ornot req) |
1271 | cancel (aio_req_ornot req) |
1186 | PROTOTYPE: |
1272 | PROTOTYPE: |
1187 | CODE: |
1273 | CODE: |
1188 | req->cancelled = 1; |
1274 | req_cancel (req); |
1189 | |
1275 | |
|
|
1276 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1277 | |
|
|
1278 | void |
|
|
1279 | add (aio_req grp, ...) |
|
|
1280 | PPCODE: |
|
|
1281 | { |
|
|
1282 | int i; |
|
|
1283 | |
|
|
1284 | if (grp->fd == 2) |
|
|
1285 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1286 | |
|
|
1287 | for (i = 1; i < items; ++i ) |
|
|
1288 | { |
|
|
1289 | if (GIMME_V != G_VOID) |
|
|
1290 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1291 | |
|
|
1292 | aio_req req = SvAIO_REQ (ST (i)); |
|
|
1293 | |
|
|
1294 | if (req) |
|
|
1295 | { |
|
|
1296 | ++grp->length; |
|
|
1297 | req->grp = grp; |
|
|
1298 | |
|
|
1299 | req->grp_prev = 0; |
|
|
1300 | req->grp_next = grp->grp_first; |
|
|
1301 | |
|
|
1302 | if (grp->grp_first) |
|
|
1303 | grp->grp_first->grp_prev = req; |
|
|
1304 | |
|
|
1305 | grp->grp_first = req; |
|
|
1306 | } |
|
|
1307 | } |
|
|
1308 | } |
|
|
1309 | |
|
|
1310 | void |
|
|
1311 | result (aio_req grp, ...) |
|
|
1312 | CODE: |
|
|
1313 | { |
|
|
1314 | int i; |
|
|
1315 | AV *av = newAV (); |
|
|
1316 | |
|
|
1317 | for (i = 1; i < items; ++i ) |
|
|
1318 | av_push (av, newSVsv (ST (i))); |
|
|
1319 | |
|
|
1320 | SvREFCNT_dec (grp->data); |
|
|
1321 | grp->data = (SV *)av; |
|
|
1322 | } |
|
|
1323 | |
|
|
1324 | void |
|
|
1325 | lock (aio_req grp) |
|
|
1326 | CODE: |
|
|
1327 | ++grp->length; |
|
|
1328 | |
|
|
1329 | void |
|
|
1330 | unlock (aio_req grp) |
|
|
1331 | CODE: |
|
|
1332 | aio_grp_dec (grp); |
|
|
1333 | |
|
|
1334 | void |
|
|
1335 | feeder_limit (aio_req grp, int limit) |
|
|
1336 | CODE: |
|
|
1337 | grp->fd2 = limit; |
|
|
1338 | aio_grp_feed (grp); |
|
|
1339 | |
|
|
1340 | void |
|
|
1341 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1342 | CODE: |
|
|
1343 | { |
|
|
1344 | SvREFCNT_dec (grp->fh2); |
|
|
1345 | grp->fh2 = newSVsv (callback); |
|
|
1346 | |
|
|
1347 | if (grp->fd2 <= 0) |
|
|
1348 | grp->fd2 = 2; |
|
|
1349 | |
|
|
1350 | aio_grp_feed (grp); |
|
|
1351 | } |
|
|
1352 | |