socket_create

来自「C实现的MUD,对大家基本入门网络游戏很有帮助!」· 代码 · 共 73 行

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          socket_create() - create an efun socket

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          #include <socket_err.h>

          int socket_create( int mode, string read_callback,
                             void | string close_callback );

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          socket_create() creates an efun socket. mode determines
          which type of socket is created. Currently supported socket
          modes are:

          MUD         for sending LPC data types using TCP protocol.

          STREAM      for sending raw data using TCP protocol.

          DATAGRAM    for using UDP protocol.

          The argument read_callback is the name of a function for the
          driver to call when the socket gets data from its peer. The
          read callback should follow this format:

               void read_callback(int fd, mixed message)

          Where fd is the socket which received the data, and message
          is the data which was received.

          The argument close_callback is the name of a function for
          the driver to call if the socket closes unexpectedly, i.e.
          not as the result of a socket_close(3) call. The close
          callback should follow this format:

               void close_callback(int fd)

          Where fd is the socket which has closed.  NOTE:
          close_callback is not used with DATAGRAM mode sockets.

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          socket_create() returns:

               a non-negative descriptor on success.

               a negative value indicated below on error.

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          EEMODENOTSUPP  Socket mode not supported.

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          EESOCKET       Problem creating socket.

          EESETSOCKOPT   Problem with setsockopt.

          EENONBLOCK     Problem setting non-blocking mode.

          EENOSOCKS      No more available efun sockets.

          EESECURITY     Security violation attempted.

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          socket_accept(3), socket_bind(3), socket_close(3),
          socket_connect(3), socket_listen(3), socket_write(3)

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