minor changes

globals/memory.go

@@ -38,6 +38,35 @@ type LatexExecution struct {
 	Output		[]byte
 }
 var LatexExec LatexExecution
+var LatexExecutionStateSuccess = "Success"
+var LatexExecutionStateFailure = "Failure"
+
+// Creates a copy of a LatexExecution (without the Mutex)
+func (execution *LatexExecution) Copy() (exeCopy *LatexExecution) {
+	if execution == nil { return nil }
+
+	exeCopy = &LatexExecution{
+		ExecutionState: execution.ExecutionState,
+		Timestamp: execution.Timestamp,
+		TimestampRFC: execution.TimestampRFC,
+	}
+
+	if execution.Output != nil {
+		exeCopy.Output = make([]byte, len(execution.Output))
+		copy(exeCopy.Output, execution.Output)
+	}
+
+	return exeCopy
+}
+
+// Returns whether the two executions are equal
+func (left *LatexExecution) Equal(right *LatexExecution) (isEqual bool) {
+	if left.ExecutionState != right.ExecutionState { return false }
+	if left.Timestamp != right.Timestamp { return false }
+	if left.TimestampRFC != right.TimestampRFC { return false }
+	if string(left.Output) != string(right.Output) { return false }
+	return true
+}
 
 type ClientInfo struct {
 	ClientIP	string