checked in first draft of "Dynamic Uml Mesh Modeler"

src/dumm/dumm.c

@@ -0,0 +1,74 @@
+#include <sys/stat.h>
+
+#include <debug.h>
+
+#include "dumm.h"
+
+typedef struct private_dumm_t private_dumm_t;
+
+struct private_dumm_t {
+	dumm_t public;
+	linked_list_t *guests;
+};
+
+static guest_t* start_guest(private_dumm_t *this, char *name, char *kernel,
+							char *master, int mem)
+{
+	guest_t *guest;
+	
+	guest = guest_create(name, kernel, master, mem);
+	if (guest)
+	{
+		if (guest->start(guest))
+		{
+			this->guests->insert_last(this->guests, guest);		
+			return guest;
+		}
+		guest->destroy(guest);
+	}
+	return NULL;
+}
+
+static iterator_t* create_guest_iterator(private_dumm_t *this)
+{
+	return this->guests->create_iterator(this->guests, TRUE);
+}
+
+static void destroy(private_dumm_t *this)
+{
+	this->guests->destroy_offset(this->guests, offsetof(guest_t, destroy));
+	free(this);
+}
+
+/**
+ * check for a directory, create if it does not exist
+ */
+static bool makedir(char *dir)
+{
+	struct stat st;
+	
+	if (stat(dir, &st) != 0)
+	{
+		return mkdir(dir, S_IRWXU) == 0;
+	}
+	return S_ISDIR(st.st_mode);
+}
+
+dumm_t *dumm_create()
+{
+	private_dumm_t *this = malloc_thing(private_dumm_t);
+	
+	this->public.start_guest = (void*)start_guest;
+	this->public.create_guest_iterator = (void*)create_guest_iterator;
+	this->public.destroy = (void*)destroy;
+	
+	if (!makedir(HOST_DIR) || !makedir(MOUNT_DIR) || !makedir(RUN_DIR))
+	{
+		free(this);
+		return NULL;
+	}
+	
+	this->guests = linked_list_create();
+	return &this->public;
+}
+