Exemplo n.º 1
0
def sendfile(self, fpath, size, callback=None):
    self._check_closed()

    if not "ws_buffer" in dir(self):
        self.ws_buffer = deque()

        if not "on_queue_change" in dir(self):

            def on_queue_change(change):
                pass

            self.on_queue_change = on_queue_change

        if self._write_buffer:
            append_wbuf(self, self._write_buffer)
            self._write_buffer = None  # не используем

        def replace_meth(name, sf_meth):
            #old = getattr(self, name)
            def wrapper(*args, **kw):
                #if self.is_sendfile_on:
                #res = sf_meth(self, *args, **kw)
                #else:
                #res = old(*args, **kw)
                #return res
                return sf_meth(self, *args, **kw)

            setattr(self, name, wrapper)

        replace_meth("_handle_write", handle_write)
        replace_meth("writing", writing)
        replace_meth("write", write_to_stream)

        orig_close_fd = self.close_fd

        def close_fd(self):
            handle_close_fd(self)
            orig_close_fd()

        replace_meth("close_fd", close_fd)

    is_ok = True

    open_by_request = True
    if open_by_request:
        f = None
    else:
        # :TRICKY: жестокая реальность говорит нам, что файлы
        # могут не открываться, "Too many open files" => тогда
        # ничего не остается, кроме как закрыть поток, иначе будем
        # писать ерунду
        is_ok, f = try_open(fpath)

    if is_ok:
        # :TRICKY: нельзя менять значения tuple'а
        #SFClass = collections.namedtuple('SFClass', ['f', 'off', 'sz'])
        #sf = SFClass(open(fpath, "rb"), 0, size)
        sf = api.make_struct(
            f=f,
            off=0,
            sz=size,
            fpath=fpath,
        )
        append_to_q(self, True, sf)

        try_write(self, callback)
    else:
        self.close()
        if callback:
            callback()
Exemplo n.º 2
0
            if callback:
                callback(None)
            io_loop.stop()

        process()
        io_loop.start()

    if True:
        test_timer = False
        if test_timer:

            def on_test_timer():
                print("!")

            set_timer(1, on_test_timer)
        else:

            def write_func(stream, is_first):
                stream.write(b"Hello\n")
                print("written!")

            obj = api.make_struct()

            def on_timeout():
                connect_to_dvr(obj, (host, port), write_func)

            set_timer(1, on_timeout)

        io_loop.start()
Exemplo n.º 3
0
            stream = yield gen.Task(connect, host, port)
            
            if stream:
                stream.close()
            
            if callback:
                callback(None)
            io_loop.stop()
    
        process()    
        io_loop.start()

    if True:
        test_timer = False
        if test_timer:
            def on_test_timer():
                print("!")
            set_timer(1, on_test_timer)
        else:
            def write_func(stream, is_first):
                stream.write(b"Hello\n")
                print("written!")
                
            obj = api.make_struct()
            def on_timeout():
                connect_to_dvr(obj, (host, port), write_func)
            
            set_timer(1, on_timeout)
        
        io_loop.start()
        
Exemplo n.º 4
0
def sendfile(self, fpath, size, callback=None):
    self._check_closed()
    
    if not "ws_buffer" in dir(self):
        self.ws_buffer = deque()

        if not "on_queue_change" in dir(self):
            def on_queue_change(change):
                pass
            self.on_queue_change = on_queue_change
        
        if self._write_buffer:
            append_wbuf(self, self._write_buffer)
            self._write_buffer = None # не используем
        
        def replace_meth(name, sf_meth):
            #old = getattr(self, name)
            def wrapper(*args, **kw):
                #if self.is_sendfile_on:
                    #res = sf_meth(self, *args, **kw)
                #else:
                    #res = old(*args, **kw)
                #return res
                return sf_meth(self, *args, **kw)
            setattr(self, name, wrapper)
            
        
        replace_meth("_handle_write", handle_write)
        replace_meth("writing", writing)
        replace_meth("write", write_to_stream)
        
        orig_close_fd = self.close_fd
        def close_fd(self):
            handle_close_fd(self)
            orig_close_fd()
        replace_meth("close_fd", close_fd)

    is_ok = True
    
    open_by_request = True
    if open_by_request:
        f = None
    else:
        # :TRICKY: жестокая реальность говорит нам, что файлы
        # могут не открываться, "Too many open files" => тогда
        # ничего не остается, кроме как закрыть поток, иначе будем
        # писать ерунду
        is_ok, f = try_open(fpath)
        
    if is_ok:
        # :TRICKY: нельзя менять значения tuple'а
        #SFClass = collections.namedtuple('SFClass', ['f', 'off', 'sz'])
        #sf = SFClass(open(fpath, "rb"), 0, size)
        sf = api.make_struct(
            f   = f, 
            off = 0, 
            sz  = size,
            fpath = fpath,
        )
        append_to_q(self, True, sf)
    
        try_write(self, callback)
    else:
        self.close()
        if callback:
            callback()