jbe@255: --[[--
jbe@255: request.add_variable(
jbe@255:   tbl,                 -- table where the variable is stored
jbe@255:   key,                 -- name of variable (key within the table)
jbe@255:   value                -- optional value for initialization
jbe@255: )
jbe@255: 
jbe@255: Marks a field of a table to be re-initialized for every request. If this variable (i.e. the field of the table) is modified before the first requst is being handled (e.g. during configuration or pre-/post-fork initializers), then the modified value will be used for re-initialization on every request. See env/request/__init.lua for an example.
jbe@255: 
jbe@255: --]]--
jbe@255: 
jbe@255: function request.add_variable(tbl, key, value)
jbe@255:   local initialized_value
jbe@255:   tbl[key] = value
jbe@255:   request.add_initializer(function(first)
jbe@255:     if first then
jbe@255:       initialized_value = tbl[key]
jbe@255:     else
jbe@255:       tbl[key] = initialized_value
jbe@255:     end
jbe@255:   end)
jbe@255: end