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 rb = require "util.ringbuffer";
describe("util.ringbuffer", function ()
describe("#new", function ()
it("has a constructor", function ()
assert.Function(rb.new);
end);
it("can be created", function ()
assert.truthy(rb.new());
end);
it("won't create an empty buffer", function ()
assert.has_error(function ()
rb.new(0);
end);
end);
it("won't create a negatively sized buffer", function ()
assert.has_error(function ()
rb.new(-1);
end);
end);
end);
describe(":write", function ()
local b = rb.new();
it("works", function ()
assert.truthy(b:write("hi"));
end);
end);
describe(":discard", function ()
local b = rb.new();
it("works", function ()
assert.truthy(b:write("hello world"));
assert.truthy(b:discard(6));
assert.equal(5, #b);
assert.equal("world", b:read(5));
end);
end);
describe(":sub", function ()
-- Helper function to compare buffer:sub() with string:sub()
local function test_sub(b, x, y)
local s = b:read(#b, true);
local string_result, buffer_result = s:sub(x, y), b:sub(x, y);
assert.equals(string_result, buffer_result, ("buffer:sub(%d, %s) does not match string:sub()"):format(x, y and ("%d"):format(y) or "nil"));
end
it("works", function ()
local b = rb.new();
assert.truthy(b:write("hello world"));
assert.equals("hello", b:sub(1, 5));
end);
it("supports optional end parameter", function ()
local b = rb.new();
assert.truthy(b:write("hello world"));
assert.equals("hello world", b:sub(1));
assert.equals("world", b:sub(-5));
end);
it("is equivalent to string:sub", function ()
local b = rb.new(6);
assert.truthy(b:write("foobar"));
b:read(3);
b:write("foo");
for i = -13, 13 do
for j = -13, 13 do
test_sub(b, i, j);
end
end
end);
end);
describe(":byte", function ()
-- Helper function to compare buffer:byte() with string:byte()
local function test_byte(b, x, y)
local s = b:read(#b, true);
local string_result, buffer_result = {s:byte(x, y)}, {b:byte(x, y)};
assert.same(string_result, buffer_result, ("buffer:byte(%d, %s) does not match string:byte()"):format(x, y and ("%d"):format(y) or "nil"));
end
it("is equivalent to string:byte", function ()
local b = rb.new(6);
assert.truthy(b:write("foobar"));
b:read(3);
b:write("foo");
test_byte(b, 1);
test_byte(b, 3);
test_byte(b, -1);
test_byte(b, -3);
for i = -13, 13 do
for j = -13, 13 do
test_byte(b, i, j);
end
end
end);
it("works with characters > 127", function ()
local b = rb.new();
b:write(string.char(0, 140));
local r = { b:byte(1, 2) };
assert.same({ 0, 140 }, r);
end);
end);
end);