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IB python api套接字WinError 10038

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IB python api套接字WinError 10038

这在 Interactive Brokers 的 API 中被编码为“connection.py”。运行时，它会返回错误“尝试对非套接字执行操作”，位于“buf = self.socket.recv(4096)”。我尝试将传递给 recv 的值更改为 7497，以匹配套接字端口，但收到相同的消息。我认为这可能是格式错误，但我对 python 还不太熟悉，无法确定。

logger = logging.getLogger(__name__)


class Connection:
    def __init__(self, host, port):
        self.host = host
        self.port = port
        self.socket = None
        self.wrapper = None
        self.lock = threading.Lock()


    def connect(self):
        try:
            self.socket = socket.socket()
        #TODO: list the exceptions you want to catch
        except socket.error:
            if self.wrapper:
                self.wrapper.error(NO_VALID_ID, FAIL_CREATE_SOCK.code(), FAIL_CREATE_SOCK.msg())

        try:
            self.socket.connect((self.host, self.port))
        except socket.error:
            if self.wrapper:
                self.wrapper.error(NO_VALID_ID, CONNECT_FAIL.code(), CONNECT_FAIL.msg())

        self.socket.settimeout(1)   #non-blocking


    def disconnect(self):
        self.lock.acquire()
        try:
            if self.socket is not None:
                logger.debug("disconnecting")
                self.socket.close()
                self.socket = None
                logger.debug("disconnected")
                if self.wrapper:
                    self.wrapper.connectionClosed()
        finally:
            self.lock.release()


    def isConnected(self):
        return self.socket is not None


    def sendMsg(self, msg):

        logger.debug("acquiring lock")
        self.lock.acquire()
        logger.debug("acquired lock")
        if not self.isConnected():
            logger.debug("sendMsg attempted while not connected, releasing lock")
            self.lock.release()
            return 0
        try:
            nSent = self.socket.send(msg)
        except socket.error:
            logger.debug("exception from sendMsg %s", sys.exc_info())
            raise
        finally:
            logger.debug("releasing lock")
            self.lock.release()
            logger.debug("release lock")

        logger.debug("sendMsg: sent: %d", nSent)

        return nSent


    def _recvMsg(self):
        if not self.isConnected():
            logger.debug("recvMsg attempted while not connected, releasing lock")
            return b""
        try:
            buf = self.recvAllMsg()
            # receiving 0 bytes outside a timeout means the connection is either
            # closed or broken
            if len(buf) == 0:
                logger.debug("socket either closed or broken, disconnecting")
                self.disconnect()
        except socket.timeout:
            logger.debug("socket timeout from recvMsg %s", sys.exc_info())
            buf = b""
        else:
            pass

        return buf

    def recvAllMsg(self):
        cont = True
        allbuf = b""

        while cont and self.socket is not None:
            buf = self.socket.recv(4096)
            allbuf += buf
            logger.debug("len %d raw:%s|", len(buf), buf)

            if len(buf) < 4096:
                cont = False

        return allbuf

答案1

4096 是缓冲区大小，而不是端口号。发生此错误是因为一个线程退出而另一个线程正在尝试写入（写入不存在的位置）。这是一个 IB 问题，但不会造成任何问题，只是有点丑陋。

答案2

在您的处实施的解决方法EClient/EWrapper 类：

  1. 创建套接字关闭函数
  2. 在调用断开连接方法之前使用它
# create function
def _socketShutdown(self):
    self.conn.lock.acquire()
    try:
        if self.conn.socket is not None:
            self.conn.socket.shutdown(socket.SHUT_WR)
    finally:
        self.conn.lock.release()

# use it
self._socketShutdown()
time.sleep(1) 
self.disconnect()

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