Added error util, finished network graph.

1 files changed, 43 insertions, 2 deletions

diff --git a/src/utils/error.rs b/src/utils/error.rs
index 411af11f..32df1fbf 100644
--- a/src/utils/error.rs
+++ b/src/utils/error.rs
@@ -1,2 +1,43 @@
-#[allow(dead_code)]
-pub struct RustopError {}
+use failure::Fail;
+use std::result;
+
+/// A type alias for handling errors related to Rustop.
+pub type Result<T> = result::Result<T, RustopError>;
+
+/// An error that can occur while Rustop runs.
+#[derive(Debug, Fail)]
+pub enum RustopError {
+	/// An error when there is an IO exception.
+	///
+	/// The data provided is the error found.
+	#[fail(display = "ERROR: Encountered an IO exception: {}", message)]
+	InvalidIO { message : String },
+	/// An error when there is an invalid argument passed in.
+	///
+	/// The data provided is the error found.
+	#[fail(display = "ERROR: Invalid argument: {}", message)]
+	InvalidArg { message : String },
+	/// An error when the heim library encounters a problem.
+	///
+	/// The data provided is the error found.
+	#[fail(display = "ERROR: Invalid error during data collection due to Heim: {}", message)]
+	InvalidHeim { message : String },
+}
+
+impl From<std::io::Error> for RustopError {
+	fn from(err : std::io::Error) -> Self {
+		RustopError::InvalidIO { message : err.to_string() }
+	}
+}
+
+impl From<heim::Error> for RustopError {
+	fn from(err : heim::Error) -> Self {
+		RustopError::InvalidHeim { message : err.to_string() }
+	}
+}
+
+impl From<std::num::ParseIntError> for RustopError {
+	fn from(err : std::num::ParseIntError) -> Self {
+		RustopError::InvalidArg { message : err.to_string() }
+	}
+}