Adding errormanager to toolkit api

src/util/errormanager.h

@@ -0,0 +1,30 @@
+/*
+ *  errormanager.h
+ *
+ *  Created on: Aug 25, 2017
+ *
+ *      Author: Michael E. Tryby
+ *              US EPA - ORD/NRMRL
+ */
+
+#ifndef ERRORMANAGER_H_
+#define ERRORMANAGER_H_
+
+#include <stdlib.h>
+#include <string.h>
+
+#define ERR_MAXMSG 256
+
+typedef struct error_s {
+    int error_status;
+    void (*p_msg_lookup)(int, char*, int);
+} error_handle_t;
+
+error_handle_t* new_errormanager(void (*p_error_message)(int, char*, int));
+void dst_errormanager(error_handle_t* error_handle);
+
+int set_error(error_handle_t* error_handle, int errorcode);
+char* check_error(error_handle_t* error_handle);
+void clear_error(error_handle_t* error_handle);
+
+#endif /* ERRORMANAGER_H_ */