First commit

errors.go

@@ -0,0 +1,45 @@
+package common
+
+import (
+	"fmt"
+)
+
+type StackError struct {
+	Err   interface{}
+	Stack []byte
+}
+
+func (se StackError) String() string {
+	return fmt.Sprintf("Error: %v\nStack: %s", se.Err, se.Stack)
+}
+
+func (se StackError) Error() string {
+	return se.String()
+}
+
+//--------------------------------------------------------------------------------------------------
+// panic wrappers
+
+// A panic resulting from a sanity check means there is a programmer error
+// and some gaurantee is not satisfied.
+func PanicSanity(v interface{}) {
+	panic(Fmt("Paniced on a Sanity Check: %v", v))
+}
+
+// A panic here means something has gone horribly wrong, in the form of data corruption or
+// failure of the operating system. In a correct/healthy system, these should never fire.
+// If they do, it's indicative of a much more serious problem.
+func PanicCrisis(v interface{}) {
+	panic(Fmt("Paniced on a Crisis: %v", v))
+}
+
+// Indicates a failure of consensus. Someone was malicious or something has
+// gone horribly wrong. These should really boot us into an "emergency-recover" mode
+func PanicConsensus(v interface{}) {
+	panic(Fmt("Paniced on a Consensus Failure: %v", v))
+}
+
+// For those times when we're not sure if we should panic
+func PanicQ(v interface{}) {
+	panic(Fmt("Paniced questionably: %v", v))
+}