File I/O Flashcards
1
Q
What are the 3 file descriptor constants
A
- STDIN_FILENO
- STOUT_FILENO
- STERR_FILENO
1
Q
What is the file header for the file descriptor symbolic constants
A
<unistd.h>
</unistd.h>
2
Q
What is a file descriptor
A
An integer created and returned when opening a file to refer to
2
Q
What does v-node stand for and what does it mean
A
Virtual Node. V-Node pointers point to a position in memory (node), which holds
2
Q
What does each process get and what is shared regarding file pointers
A
They get their own File Table Entries, but the v-node pointer in the entries points to the same v-node
3
Q
What is an atomic operation
A
An operation that only makes 1 function call
4
Q
What is an issue that can occur regarding non-atomic operations
A
Race conditions can occur between 2 processes
5
Q
A
