Initial commit interface for python wrap

src/util/errormanager.c

@@ -0,0 +1,74 @@
+//-----------------------------------------------------------------------------
+//
+//   errormanager.c
+//
+//   Purpose: Provides a simple interface for managing runtime error messages.
+//
+//   Date:       08/25/2017
+//
+//   Author:     Michael E. Tryby
+//               US EPA - ORD/NRMRL
+//-----------------------------------------------------------------------------
+#include <stdlib.h>
+#include <string.h>
+#include "errormanager.h"
+
+error_handle_t* error_new_manager(void (*p_error_message)(int, char*, int))
+//
+// Purpose: Constructs a new error handle.
+//
+{
+	error_handle_t* error_handle;
+	error_handle = (error_handle_t*)calloc(1, sizeof(error_handle_t));
+
+	error_handle->p_msg_lookup = p_error_message;
+
+	return error_handle;
+}
+
+void error_dst_manager(error_handle_t* error_handle)
+//
+// Purpose: Destroys the error handle.
+//
+{
+	free(error_handle);
+}
+
+int error_set(error_handle_t* error_handle, int errorcode)
+//
+// Purpose: Sets an error code in the handle.
+//
+{
+	// If the error code is 0 no action is taken and 0 is returned.
+	// This is a feature not a bug.
+	if (errorcode)
+		error_handle->error_status = errorcode;
+
+	return errorcode;
+}
+
+char* error_check(error_handle_t* error_handle)
+//
+// Purpose: Returns the error message or NULL.
+//
+// Note: Caller must free memory allocated by check_error
+//
+{
+	char* temp = NULL;
+
+	if (error_handle->error_status != 0) {
+		temp = (char*) calloc(ERR_MAXMSG, sizeof(char));
+
+		if (temp)
+			error_handle->p_msg_lookup(error_handle->error_status, temp, ERR_MAXMSG);
+	}
+	return temp;
+}
+
+void error_clear(error_handle_t* error_handle)
+//
+// Purpose: Clears the error from the handle.
+//
+{
+	error_handle->error_status = 0;
+}