socket 函数 setsockopt()用法

资料来源: 微软MSDN在线帮助

setsockopt(s, level, optname, optval, optlen) 函数
https://msdn.microsoft.com/library/windows/desktop/ms740476.aspx

level = SOL_SOCKET

optname编码	Type	Description
SO_BROADCAST	BOOL	Configures a socket for sending broadcast data.
SO_CONDITIONAL_ACCEPT	BOOL	Enables incoming connections are to be accepted or rejected by the application, not by the protocol stack.
SO_DEBUG	BOOL	Enables debug output. Microsoft providers currently do not output any debug information.
SO_DONTLINGER	BOOL	Does not block close waiting for unsent data to be sent. Setting this option is equivalent to setting SO_LINGER with l_onoff set to zero.
SO_DONTROUTE	BOOL	Sets whether outgoing data should be sent on interface the socket is bound to and not a routed on some other interface. This option is not supported on ATM sockets (results in an error).
SO_GROUP_PRIORITY	int	Reserved.
SO_KEEPALIVE	BOOL	Enables sending keep-alive packets for a socket connection. Not supported on ATM sockets (results in an error).
SO_LINGER	LINGER	Lingers on close if unsent data is present.
SO_OOBINLINE	BOOL	Indicates that out-of-bound data should be returned in-line with regular data. This option is only valid for connection-oriented protocols that support out-of-band data. For a discussion of this topic, see Protocol Independent Out-Of-band Data.
SO_RCVBUF	int	Specifies the total per-socket buffer space reserved for receives.
SO_REUSEADDR	BOOL	Allows the socket to be bound to an address that is already in use. For more information, see bind. Not applicable on ATM sockets.
SO_EXCLUSIVEADDRUSE	BOOL	Enables a socket to be bound for exclusive access. Does not require administrative privilege.
SO_RCVTIMEO	DWORD	Sets the timeout, in milliseconds, for blocking receive calls.
SO_SNDBUF	int	Specifies the total per-socket buffer space reserved for sends.
SO_SNDTIMEO	DWORD	The timeout, in milliseconds, for blocking send calls.
SO_UPDATE_ACCEPT_CONTEXT	int	Updates the accepting socket with the context of the listening socket.
PVD_CONFIG	Service Provider Dependent	This object stores the configuration information for the service provider associated with socket s. The exact format of this data structure is service provider specific.

详细参数

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