webmcp

annotate framework/env/request/add_variable.lua @ 257:78a2ae40c88e

Code optimization in slot.reset_all{...}
author jbe
date Sun Mar 15 01:06:04 2015 +0100 (2015-03-15)
parents 9e4be058959d
children 41be09ce6aa3
rev   line source
jbe@255 1 --[[--
jbe@255 2 request.add_variable(
jbe@255 3 tbl, -- table where the variable is stored
jbe@255 4 key, -- name of variable (key within the table)
jbe@255 5 value -- optional value for initialization
jbe@255 6 )
jbe@255 7
jbe@255 8 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 9
jbe@255 10 --]]--
jbe@255 11
jbe@255 12 function request.add_variable(tbl, key, value)
jbe@255 13 local initialized_value
jbe@255 14 tbl[key] = value
jbe@255 15 request.add_initializer(function(first)
jbe@255 16 if first then
jbe@255 17 initialized_value = tbl[key]
jbe@255 18 else
jbe@255 19 tbl[key] = initialized_value
jbe@255 20 end
jbe@255 21 end)
jbe@255 22 end

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