Addition of developer and user modes to debugcli

In order to be able to protect the interface so that mistyped argument
do not endanger MaxScale yet still allow the developer access a router
option has been added that gives the debugcli two modes.

server/core/dcb.c

@@ -1606,3 +1606,31 @@ DCB_CALLBACK	*cb, *nextcb;
 	}
 	spinlock_release(&dcb->cb_lock);
 }
+
+/**
+ * Check the passed DCB to ensure it is in the list of allDCBS
+ *
+ * @param	DCB	The DCB to check
+ * @return	1 if the DCB is in the list, otherwise 0
+ */
+int
+dcb_isvalid(DCB *dcb)
+{
+DCB	*ptr;
+int	rval = 0;
+
+	spinlock_acquire(&dcbspin);
+	ptr = allDCBs;
+	while (ptr)
+	{
+		if (ptr == dcb)
+		{
+			rval = 1;
+			break;
+		}
+		ptr = ptr->next;
+	}
+	spinlock_release(&dcbspin);
+
+	return rval;
+}

server/core/monitor.c

@@ -197,3 +197,26 @@ MONITOR	*ptr;
 	}
 	spinlock_release(&monLock);
 }
+
+/**
+ * Find a monitor by name
+ *
+ * @param	name	The name of the monitor
+ * @return	Pointer to the monitor or NULL
+ */
+MONITOR *
+monitor_find(char *name)
+{
+MONITOR	*ptr;
+
+	spinlock_acquire(&monLock);
+	ptr = allMonitors;
+	while (ptr)
+	{
+		if (!strcmp(ptr->name, name))
+			break;
+		ptr = ptr->next;
+	}
+	spinlock_release(&monLock);
+	return ptr;
+}

server/core/service.c

@@ -29,6 +29,7 @@
  * 25/02/14	Massimiliano Pinto	Added: service refresh limit feature
  * 28/02/14	Massimiliano Pinto	users_alloc moved from service_alloc to serviceStartPort (generic hashable for services)
  * 07/05/14	Massimiliano Pinto	Added: version_string initialized to NULL
+ * 23/05/14	Mark Riddoch		Addition of service validation call
  *
  * @endverbatim
  */
@@ -114,6 +115,33 @@ SERVICE 	*service;
 	return service;
 }
 
+/**
+ * Check to see if a service pointer is valid
+ *
+ * @param service	The poitner to check
+ * @return 1 if the service is in the list of all services
+ */
+int
+service_isvalid(SERVICE *service)
+{
+SERVICE		*ptr;
+int		rval = 0;
+
+	spinlock_acquire(&service_spin);
+	ptr = allServices;
+	while (ptr)
+	{
+		if (ptr == service)
+		{
+			rval = 1;
+			break;
+		}
+		ptr = ptr->next;
+	}
+	spinlock_release(&service_spin);
+	return rval;
+}
+
 /**
  * Start an individual port/protocol pair
  *

server/core/session.c

@@ -269,6 +269,34 @@ return_succp :
         return succp;
 }
 
+/**
+ * Check to see if a session is valid, i.e. in the list of all sessions
+ *
+ * @param session	Session to check
+ * @return		1 if the session is valid otherwise 0
+ */
+int
+session_isvalid(SESSION *session)
+{
+SESSION		*ptr;
+int		rval = 0;
+
+	spinlock_acquire(&session_spin);
+	ptr = allSessions;
+	while (ptr)
+	{
+		if (ptr == session)
+		{
+			rval = 1;
+			break;
+		}
+		ptr = ptr->next;
+	}
+	spinlock_release(&session_spin);
+
+	return rval;
+}
+
 /**
  * Print details of an individual session
  *