net.server_epoll: Add support for systemd socket activation
Allows creating listening sockets and accepting client connections
before Prosody starts.
This is unlike normal Prosody dynamic resource management, where ports
may added and removed at any time, and the ports defined by the config.
Weird things happen if these are closed (e.g. due to reload) so here we
prevent closing and ensure sockets are reused when opened again.
local strbitop = require "util.strbitop";
describe("util.strbitop", function ()
describe("sand()", function ()
it("works", function ()
assert.equal(string.rep("Aa", 100), strbitop.sand(string.rep("a", 200), "Aa"));
end);
it("returns empty string if first argument is empty", function ()
assert.equal("", strbitop.sand("", ""));
assert.equal("", strbitop.sand("", "key"));
end);
it("returns initial string if key is empty", function ()
assert.equal("hello", strbitop.sand("hello", ""));
end);
end);
describe("sor()", function ()
it("works", function ()
assert.equal(string.rep("a", 200), strbitop.sor(string.rep("Aa", 100), "a"));
end);
it("returns empty string if first argument is empty", function ()
assert.equal("", strbitop.sor("", ""));
assert.equal("", strbitop.sor("", "key"));
end);
it("returns initial string if key is empty", function ()
assert.equal("hello", strbitop.sor("hello", ""));
end);
end);
describe("sxor()", function ()
it("works", function ()
assert.equal(string.rep("Aa", 100), strbitop.sxor(string.rep("a", 200), " \0"));
end);
it("returns empty string if first argument is empty", function ()
assert.equal("", strbitop.sxor("", ""));
assert.equal("", strbitop.sxor("", "key"));
end);
it("returns initial string if key is empty", function ()
assert.equal("hello", strbitop.sxor("hello", ""));
end);
end);
describe("common_prefix_bits()", function ()
local function B(s)
assert(#s%8==0, "Invalid test input: B(s): s should be a multiple of 8 bits in length");
local byte = 0;
local out_str = {};
for i = 1, #s do
local bit_ascii = s:byte(i);
if bit_ascii == 49 then -- '1'
byte = byte + 2^((7-(i-1))%8);
elseif bit_ascii ~= 48 then
error("Invalid test input: B(s): s should contain only '0' or '1' characters");
end
if (i-1)%8 == 7 then
table.insert(out_str, string.char(byte));
byte = 0;
end
end
return table.concat(out_str);
end
local _cpb = strbitop.common_prefix_bits;
local function test(a, b)
local Ba, Bb = B(a), B(b);
local ret1 = _cpb(Ba, Bb);
local ret2 = _cpb(Bb, Ba);
assert(ret1 == ret2, ("parameter order should not make a difference to the result (%s, %s) = %d, reversed = %d"):format(a, b, ret1, ret2));
return ret1;
end
it("works on single bytes", function ()
assert.equal(0, test("00000000", "11111111"));
assert.equal(1, test("10000000", "11111111"));
assert.equal(0, test("01000000", "11111111"));
assert.equal(0, test("01000000", "11111111"));
assert.equal(8, test("11111111", "11111111"));
end);
it("works on multiple bytes", function ()
for i = 0, 16 do
assert.equal(i, test(string.rep("1", i)..string.rep("0", 16-i), "1111111111111111"));
end
end);
end);
end);