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%% Copyright Ericsson AB 2007-2010. All Rights Reserved.
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%% Licensed under the Apache License, Version 2.0 (the "License");
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-define(seconds(EndTs,StartTs), timer:now_diff(EndTs, StartTs)/1000000).

%%% -------------------	%%%
%%% Type definitions	%%%
%%% -------------------	%%%

-type timestamp() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}.
-type true_mfa() :: {atom(), atom(), byte() | list()}.
-type state() :: 'active' | 'inactive'.
-type scheduler_id() :: {'scheduler_id', non_neg_integer()}.

%%% -------------------	%%%
%%% 	Records		%%%
%%% -------------------	%%%

-record(activity, {
	timestamp 		,%:: timestamp() , 
	id 			,%:: pid() | port() | scheduler_id(), 
	state = undefined	,%:: state() | 'undefined', 
	where = undefined	,%:: true_mfa() | 'undefined', 
	runnable_count = 0	%:: non_neg_integer()
	}).

-record(information, {
	id			,%:: pid() | port(), 
	name = undefined	,%:: atom() | string() | 'undefined', 
	entry = undefined	,%:: true_mfa() | 'undefined', 
	start = undefined 	,%:: timestamp() | 'undefined',
	stop = undefined	,%:: timestamp() | 'undefined', 
	parent = undefined 	,%:: pid() | 'undefined',
	children = []		%:: [pid()]
	}).

