TTYBUF
Implement a circular buffer for character I/O operations
typedef struct ttybuf_entry {
unsigned int cnt;
unsigned int size;
unsigned char * buff;
unsigned char * head;
unsigned char * tail;
} TTYBUF;Description:
The TTYBUF type implements a circular buffer (ring buffer) for efficient character I/O operations.
The members include:
- cnt
-
The current number of characters in the buffer.
- size
- The total size of the buffer.
- buff
-
A pointer to the allocated buffer memory.
- head
-
A pointer to the position where next character will be written.
- tail
-
A pointer to the position where next character will be read.
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