--:Minify:--
-- Supports:
--   AF_UNIX  - local IPC via /var/run/*.sock paths
--   AF_INET  - network sockets with three backends:
--      Implemented by drivers but expect http:// and https://
--
-- Socket lifecycle:
--   fd = syscall.socket(domain, socktype)   -- "unix"/"inet", "stream"/"dgram"
--   syscall.bind(fd, address)               -- server: claim address
--   syscall.listen(fd, backlog)             -- server: mark as listening
--   cfd = syscall.accept(fd)                -- server: get connected client fd (blocking poll)
--   syscall.connect(fd, address)            -- client: connect to server
--   syscall.send(fd, data)                  -- send bytes
--   syscall.recv(fd, len)                   -- receive bytes (blocking poll, returns "" on nothing)
--   syscall.sockshutdown(fd)                -- half-close send side
--   -- normal vfs.close(fd) closes the socket

local kernel=...
local socket={}
socket.handlers={}
kernel.socket=socket

function socket.registerProtocal(protocal, handler)
    socket.handlers[protocal] = handler
end

function socket.socket()
    local P=kernel.vfs.P
    local data=kernel.newFifo()
    local isClosed=false
    kernel.vfs.newfd({
        handle={
            read=function() if isClosed then error("ECCON") end return data.read() end,
            write=function() if isClosed then error("ECCON") end return data.write() end,
            close=function() isClosed = true end
        },
        type="socket",
        refcount=1,

        meta={
            owner=kernel.currentTask.uid,
            group=kernel.currentTask.uid,
            etype=2,
            perms=P.OWNER_R+P.OWNER_W+P.GROUP_R+P.GROUP_W
        },
        isvirt=true
    })
end

function socket.connect(fd, address)
    
end

function socket.listen(fd, backlog)
    
end

kernel.log("Loaded socket module")