set a recommended number of threads per session type

lib/msf/base/sessions/command_shell.rb

@@ -50,6 +50,7 @@ class CommandShell
   def initialize(*args)
     self.platform ||= ""
     self.arch     ||= ""
+    self.max_threads = 1
     super
   end
 
@@ -235,6 +236,7 @@ class CommandShell
 
   attr_accessor :arch
   attr_accessor :platform
+  attr_accessor :max_threads
 
 protected
 

lib/msf/base/sessions/meterpreter.rb

@@ -69,6 +69,9 @@ class Meterpreter < Rex::Post::Meterpreter::Client
     # Don't pass the datastore into the init_meterpreter method
     opts.delete(:datastore)
 
+    # Assume by default that 10 threads is a safe number for this session
+    self.max_threads ||= 10
+
     #
     # Initialize the meterpreter client
     #
@@ -488,6 +491,7 @@ class Meterpreter < Rex::Post::Meterpreter::Client
   attr_accessor :skip_ssl
   attr_accessor :skip_cleanup
   attr_accessor :target_id
+  attr_accessor :max_threads
 
 protected