Added const to make rate switching in the future easier.

TODO.md

@@ -22,9 +22,7 @@ Note this will probably migrate to GitHub's native Issues; this was mostly for p
 
 ## After making public
 
-- Consider bumping up the refresh rate to 3000?
-
-- Arrow keys for lists. This is a priority!
+- Scrolling support for temp/disk
 
 - Travis
 
@@ -46,18 +44,8 @@ Note this will probably migrate to GitHub's native Issues; this was mostly for p
 
 - Remove any `unwrap()`, ensure no crashing! Might have to use this: <https://doc.rust-lang.org/std/panic/fn.catch_unwind.html>
 
-- Scrolling event in lists
-
-- Switching between panels
-
 - Truncate columns if needed for tables
 
-- Test for Windows support, mac support, other. May be doable, depends on sysinfo and how much I know about other OSes probably.
-
-- Seems like the braille symbols are borked on windows.
-
-- Issue with typing after windows version runs!
-
 - Efficiency!!!
 
 - Filtering in processes (that is, allow searching)
@@ -66,6 +54,4 @@ Note this will probably migrate to GitHub's native Issues; this was mostly for p
 
 - Modularity
 
-- ~~Potentially process managing? Depends on the libraries...~~ Done on Linux!
-
 - Probably good to add a "are you sure" to dd-ing...

src/constants.rs

@@ -1,3 +1,4 @@
 // TODO: Store like three minutes of data, then change how much is shown based on scaling!
 pub const STALE_MAX_MILLISECONDS : u64 = 60 * 1000; // We wish to store at most 60 seconds worth of data.  This may change in the future, or be configurable.
 pub const TICK_RATE_IN_MILLISECONDS : u64 = 200; // We use this as it's a good value to work with.
+pub const DEFAULT_REFRESH_RATE_IN_MILLISECONDS : u128 = 1000;

src/main.rs

@@ -56,7 +56,15 @@ fn main() -> error::Result<()> {
 	//.after_help("Themes:") // TODO: This and others disabled for now
 	.get_matches();
 
-	let update_rate_in_milliseconds : u128 = matches.value_of("RATE_MILLIS").unwrap_or("1000").parse::<u128>()?;
+	let update_rate_in_milliseconds : u128 = if matches.is_present("RATE_MILLIS") {
+		matches
+			.value_of("RATE_MILLIS")
+			.unwrap_or(&constants::DEFAULT_REFRESH_RATE_IN_MILLISECONDS.to_string())
+			.parse::<u128>()?
+	}
+	else {
+		constants::DEFAULT_REFRESH_RATE_IN_MILLISECONDS
+	};
 
 	if update_rate_in_milliseconds < 250 {
 		return Err(RustopError::InvalidArg {