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86 lines
2.5 KiB
Lua
86 lines
2.5 KiB
Lua
local ffi = require("ffi")
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local util = require("ffi/util")
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local Event = require("ui/event")
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local DEBUG = require("dbg")
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local dummy = require("ffi/zeromq_h")
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local czmq = ffi.load("libs/libczmq.so.1")
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local zyre = ffi.load("libs/libzyre.so.1")
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local MessageQueue = {}
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function MessageQueue:new(o)
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o = o or {}
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setmetatable(o, self)
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self.__index = self
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if o.init then o:init() end
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self.messages = {}
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return o
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end
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function MessageQueue:init()
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end
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function MessageQueue:start()
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end
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function MessageQueue:stop()
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end
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function MessageQueue:waitEvent()
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end
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function MessageQueue:handleZMsgs(messages)
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local function drop_message()
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if czmq.zmsg_size(messages[1]) == 0 then
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czmq.zmsg_destroy(ffi.new('zmsg_t *[1]', messages[1]))
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table.remove(messages, 1)
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end
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end
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local function pop_string()
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local str_p = czmq.zmsg_popstr(messages[1])
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local message_size = czmq.zmsg_size(messages[1])
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local res = ffi.string(str_p)
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czmq.zstr_free(ffi.new('char *[1]', str_p))
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drop_message()
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return res
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end
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local function pop_header()
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local header = {}
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local frame = czmq.zmsg_pop(messages[1])
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if frame ~= nil then
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local hash = czmq.zhash_unpack(frame)
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czmq.zframe_destroy(ffi.new('zframe_t *[1]', frame))
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if hash ~= nil then
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local value, key = czmq.zhash_first(hash), czmq.zhash_cursor(hash)
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while value ~= nil and key ~= nil do
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header[ffi.string(key)] = ffi.string(value)
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value, key = czmq.zhash_next(hash), czmq.zhash_cursor(hash)
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end
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czmq.zhash_destroy(ffi.new('zhash_t *[1]', hash))
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end
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end
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drop_message()
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return header
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end
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if #messages == 0 then return end
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local message_size = czmq.zmsg_size(messages[1])
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local command = pop_string()
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DEBUG("ØMQ message", command)
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if command == "ENTER" then
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local id = pop_string()
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local name = pop_string()
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local header = pop_header()
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local endpoint = pop_string()
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--DEBUG(id, name, header, endpoint)
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return Event:new("ZyreEnter", id, name, header, endpoint)
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elseif command == "DELIVER" then
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local filename = pop_string()
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local fullname = pop_string()
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--DEBUG("received", filename)
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return Event:new("FileDeliver", filename, fullname)
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end
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end
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return MessageQueue
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