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spec/core_moduleapi_spec.lua @ 11665:148075532021
net.server_epoll: Prevent stack overflow of opportunistic writes
net.http.files serving a big enough file on a fast enough connection
with opportunistic_writes enabled could trigger a stack overflow through
repeatedly serving more data that immediately gets sent, draining the
buffer and triggering more data to be sent. This also blocked the server
on a single task until completion or an error.
This change prevents nested opportunistic writes, which should prevent
the stack overflow, at the cost of reduced download speed, but this is
unlikely to be noticeable outside of Gbit networks. Speed at the cost of
blocking other processing is not worth it, especially with the risk of
stack overflow.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 11 Jul 2021 09:39:21 +0200 |
parent | 8562:a6188f5d5bb5 |
child | 13400:786c7707f306 |
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package.loaded["core.configmanager"] = {}; package.loaded["core.statsmanager"] = {}; package.loaded["net.server"] = {}; local set = require "util.set"; _G.prosody = { hosts = {}, core_post_stanza = true }; local api = require "core.moduleapi"; local module = setmetatable({}, {__index = api}); local opt = nil; function module:log() end function module:get_option(name) if name == "opt" then return opt; else return nil; end end function test_option_value(value, returns) opt = value; assert(module:get_option_number("opt") == returns.number, "number doesn't match"); assert(module:get_option_string("opt") == returns.string, "string doesn't match"); assert(module:get_option_boolean("opt") == returns.boolean, "boolean doesn't match"); if type(returns.array) == "table" then local target_array, returned_array = returns.array, module:get_option_array("opt"); assert(#target_array == #returned_array, "array length doesn't match"); for i=1,#target_array do assert(target_array[i] == returned_array[i], "array item doesn't match"); end else assert(module:get_option_array("opt") == returns.array, "array is returned (not nil)"); end if type(returns.set) == "table" then local target_items, returned_items = set.new(returns.set), module:get_option_set("opt"); assert(target_items == returned_items, "set doesn't match"); else assert(module:get_option_set("opt") == returns.set, "set is returned (not nil)"); end end describe("core.moduleapi", function() describe("#get_option_*()", function() it("should handle missing options", function() test_option_value(nil, {}); end); it("should return correctly handle boolean options", function() test_option_value(true, { boolean = true, string = "true", array = {true}, set = {true} }); test_option_value(false, { boolean = false, string = "false", array = {false}, set = {false} }); test_option_value("true", { boolean = true, string = "true", array = {"true"}, set = {"true"} }); test_option_value("false", { boolean = false, string = "false", array = {"false"}, set = {"false"} }); test_option_value(1, { boolean = true, string = "1", array = {1}, set = {1}, number = 1 }); test_option_value(0, { boolean = false, string = "0", array = {0}, set = {0}, number = 0 }); end); it("should return handle strings", function() test_option_value("hello world", { string = "hello world", array = {"hello world"}, set = {"hello world"} }); end); it("should return handle numbers", function() test_option_value(1234, { string = "1234", number = 1234, array = {1234}, set = {1234} }); end); it("should return handle arrays", function() test_option_value({1, 2, 3}, { boolean = true, string = "1", number = 1, array = {1, 2, 3}, set = {1, 2, 3} }); test_option_value({1, 2, 3, 3, 4}, {boolean = true, string = "1", number = 1, array = {1, 2, 3, 3, 4}, set = {1, 2, 3, 4} }); test_option_value({0, 1, 2, 3}, { boolean = false, string = "0", number = 0, array = {0, 1, 2, 3}, set = {0, 1, 2, 3} }); end); end) end)