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111 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
111 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
112 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
112 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
113 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
113 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
114 | |
114 | |
115 | /*****************************************************************************/ |
115 | /*****************************************************************************/ |
116 | /* high-level request API */ |
116 | /* convinience wrappers */ |
117 | |
117 | |
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118 | #ifndef EIO_NO_WRAPPERS |
118 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
119 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
119 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
120 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
120 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
121 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
121 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
122 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
122 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
123 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
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145 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
146 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
146 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
147 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
147 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
148 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
148 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
149 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
149 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
150 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
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151 | #endif |
150 | |
152 | |
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153 | /*****************************************************************************/ |
151 | /* for groups */ |
154 | /* groups */ |
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155 | |
152 | eio_req *eio_grp (eio_cb cb, void *data); |
156 | eio_req *eio_grp (eio_cb cb, void *data); |
153 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit); |
157 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit); |
154 | void eio_grp_limit (eio_req *grp, int limit); |
158 | void eio_grp_limit (eio_req *grp, int limit); |
155 | void eio_grp_add (eio_req *grp, eio_req *req); |
159 | void eio_grp_add (eio_req *grp, eio_req *req); |
156 | void eio_grp_cancel (eio_req *grp); /* cancels all sub requests but not the group */ |
160 | void eio_grp_cancel (eio_req *grp); /* cancels all sub requests but not the group */ |
157 | |
161 | |
158 | /* cancel a request as soon fast as possible */ |
162 | /*****************************************************************************/ |
159 | void eio_cancel (eio_req *req); |
163 | /* request api */ |
160 | /* destroy a request that has never been submitted */ |
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161 | void eio_destroy (eio_req *req); |
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162 | |
164 | |
163 | /* true if the request was cancelled, useful in the invoke callback */ |
165 | /* true if the request was cancelled, useful in the invoke callback */ |
164 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
166 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
165 | |
167 | |
166 | #define EIO_RESULT(req) ((req)->result) |
168 | #define EIO_RESULT(req) ((req)->result) |
167 | /* returns a pointer to the result buffer allocated by eio */ |
169 | /* returns a pointer to the result buffer allocated by eio */ |
168 | #define EIO_BUF(req) ((req)->ptr2) |
170 | #define EIO_BUF(req) ((req)->ptr2) |
169 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
171 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
170 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
172 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
171 | |
173 | |
172 | /*****************************************************************************/ |
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173 | /* low-level request API */ |
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174 | |
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175 | /* must be used to initialise eio_req's */ |
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176 | #define EIO_INIT(req,prio,finish_cb, destroy_cb) \ |
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177 | memset ((req), 0, sizeof (eio_req)); \ |
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178 | (req)->pri = (prio) + EIO_PRI_BIAS; \ |
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179 | (req)->finish = (finish_cb); \ |
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180 | (req)->destroy = (destroy_cb) |
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181 | |
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182 | /* submit a request for execution */ |
174 | /* submit a request for execution */ |
183 | void eio_submit (eio_req *req); |
175 | void eio_submit (eio_req *req); |
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176 | /* cancel a request as soon fast as possible, if possible */ |
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177 | void eio_cancel (eio_req *req); |
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178 | /* destroy a request that has never been submitted */ |
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179 | void eio_destroy (eio_req *req); |
184 | |
180 | |
185 | /*****************************************************************************/ |
181 | /*****************************************************************************/ |
186 | /* convinience functions */ |
182 | /* convinience functions */ |
187 | |
183 | |
188 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
184 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |