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view src/buf.h @ 51:ccd59cd9ee45
fix
author | Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> |
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date | Mon, 17 Dec 2018 19:48:57 +0900 |
parents | 83c23a36980d |
children |
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#ifndef INCLUDE_BUF_H #define INCLUDE_BUF_H struct buf { int flags; uint dev; uint sector; struct buf *prev; // LRU cache list struct buf *next; struct buf *qnext; // disk queue uchar data[512]; }; #define B_BUSY 0x1 // buffer is locked by some process #define B_VALID 0x2 // buffer has been read from disk #define B_DIRTY 0x4 // buffer needs to be written to disk #endif