PAGE_SIZE is already defined in memory/mod.rs

This commit is contained in:
Philipp Oppermann
2015-12-07 10:55:20 +01:00
parent a279609c26
commit 6ed376112d
3 changed files with 6 additions and 6 deletions

View File

@@ -13,7 +13,8 @@ TODO
Let's create a basic `memory/paging/mod.rs` module:
```rust
pub const PAGE_SIZE: usize = 4096;
use memory::PAGE_SIZE;
const ENTRY_COUNT: usize = 512;
pub type PhysicalAddress = usize;
@@ -23,7 +24,7 @@ pub struct Page {
number: usize,
}
```
We define constants for the page size and the number of entries per table. To make future function signatures more expressive, we can use the type aliases `PhysicalAddress` and `VirtualAddress`. The `Page` struct is similar to the `Frame` struct in the [previous post], but represents a virtual page instead of a physical frame.
We import the `PAGE_SIZE` and define a constant for the number of entries per table. To make future function signatures more expressive, we can use the type aliases `PhysicalAddress` and `VirtualAddress`. The `Page` struct is similar to the `Frame` struct in the [previous post], but represents a virtual page instead of a physical frame.
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