Mercurial > hg > Members > mitsuki > xv6_rpi2_port
view include/buf.h @ 0:ed10291ff195
first commit
author | mir3636 |
---|---|
date | Sun, 06 Jan 2019 19:27:03 +0900 |
parents | |
children |
line wrap: on
line source
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