unix 下的C开发手册,还用详细的例程。

																				t_sndrel																The Single UNIX ® Specification, Version 2				Copyright © 1997 The Open Group												NAME				t_sndrel - initiate an orderly release				SYNOPSIS												#include <xti.h>								int t_sndrel(				    int fd)												DESCRIPTION								Parameters				Before call				After call				fd				x				/																For transport providers of type T_COTS_ORD,				this function is used to initiate an orderly release of the outgoing				direction of data transfer				and indicates to the transport provider that				the transport user has no more data to send.				The argument				fd				identifies the local transport endpoint where the connection exists.				After calling				t_sndrel(),				the user may not send any more data over the connection.				However, a user may continue to receive data if an				orderly release indication has not been received.				For transport providers of types other than T_COTS_ORD,				this function fails with error [TNOTSUPPORT].				VALID STATES				T_DATAXFER,T_INREL				ERRORS				On failure,				t_errno				is set to one of the following:												[TBADF]The specified file descriptor does not refer to a transport endpoint.								[TFLOW]O_NONBLOCK				was set, but				the flow control mechanism prevented the transport provider from				accepting the function at this time.								[TLOOK]An asynchronous event has occurred on this transport endpoint and requires				immediate attention.								[TNOTSUPPORT]This function is not supported by the underlying transport				provider.								[TOUTSTATE]The communications endpoint referenced by 				fd				is not in one of the states in which a call to this function is valid.								[TPROTO]This error indicates that a communication problem has been detected between				XTI and the transport provider for which there is no other suitable XTI				error				(t_errno).								[TSYSERR]A system error has occurred during execution of this function.												RETURN VALUE				Upon successful completion, a value of 0 is returned.  Otherwise,				a value of -1 is returned and				t_errno				is set to indicate an error.				SEE ALSO				t_getinfo(),				t_open(),				t_rcvrel().												UNIX ® is a registered Trademark of The Open Group.				Copyright © 1997 The Open Group				 [ Main Index | XSH | XCU | XBD | XCURSES | XNS ]