Question

我想从服务器向客户端发送大块字节，然后将这些块保存在列表中。我用20个线程发送这个东西，20个线程用于接收。在每个块中，我在开始处插入两个字节表示块ID的编号，该块ID应该是客户端在列表的ehach索引中知道的指示符，该块将被放置。

客户端：

 global chunks
                    chunks = ['' for _ in xrange(WORKERS)]  # That list will hold the chunks before writing it to file.
                    threads_list = []
                    for _ in xrange(0, WORKERS):
                        worker = threading.Thread(target=job, kwargs={"server_tunnel": server_tunnel})
                        worker.start()
                        threads_list.append(worker)

                    for is_end in threads_list:
                        is_end.join()  # Stop the all program till the all file has been sent

客户端职位职能（线程）：

def job(server_tunnel):
    download = ''

    global chunks
    while not download == "DIE THREAD!":
        curr_bytes = server_tunnel.recv(SPEED)  # 7B 8192 4096
        chunks[int(curr_bytes[0:2])] += curr_bytes[2:]

服务器：

# Making a list of chunks and send the chunks by workers
chunk = curr_file_size / WORKERS
chunks = []
with open(path, 'rb') as curr_file:
    for _ in xrange(0, WORKERS):
        chunks.append(curr_file.read(chunk))
    chunks[WORKERS - 1] += curr_file.read(curr_file_size % WORKERS)
threads_list = []

for i in xrange(0, WORKERS):
    worker = threading.Thread(target=self.job, kwargs={"curr_file_size": curr_file_size,
                                                       "curr_file": curr_file,
                                                       "client_socket": client_socket,
                                                       "chunk": chunks[i],
                                                       "worker": i})

服务器作业（线程）：

def job(self, curr_file_size, curr_file, client_socket, chunk, worker):
    sent = 0
    length_chunk = len(chunk)
    while sent < length_chunk:
        try:
            client_socket.sendall(str(worker).zfill(2) + chunk[sent:sent + SPEED])  # 7a ,8192 4096
            sent += SPEED
        except socket.error:
            print 'One link died. E2'
            self.clients.remove(self.chosen)
            client_socket.close()
            self.chosen = ''
    client_socket.send("DIE THREAD!")

现在.. 尝试将文件从服务器发送到客户端时出现此错误：

chunks [int（curr_bytes [0：2]）] + = curr_bytes [2：] ValueError：无效   对于具有基数10的int（）的文字：'{\ xa2'

chunks [int（curr_bytes [0：2]）] + = curr_bytes [2：] ValueError：无效   int（）的文字为基数10：'DI'等..

有什么建议吗？

不明白为什么“recv（）”没有从“sendall（）”python中获取一些字符串

0 个答案: