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t_close(3) Library Functions Manual t_close(3) NAME t_close - Closes a transport endpoint. LIBRARY XTI Library (libxti.a) SYNOPSIS #include <xti.h> int t _close( int fd) ; STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: t_close: XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS The following table summarizes the relevance of the input parameter be- fore and after t_close() is called: tab (@); lb lb lb c c c. Parameter@Before Call@After Call _ fd@y@n Notes to table: This is a meaningful parameter. This is not a meaning- ful parameter. Specifies a file descriptor returned by the t_open() function that identifies a local transport endpoint. VALID STATES The t_close() function is intended to be called in the T_UNBND trans- port provider state (see the DESCRIPTION section). DESCRIPTION The t_close() XTI function is used in connection-oriented and connec- tionless transport service to inform a transport provider that the transport user has finished with the transport endpoint. The transport endpoint is specified by a file descriptor previously returned by the t_open() function. The t_close() function frees any local library re- sources associated with the transport endpoint referenced by the file descriptor. The t_close() function does not check state information (see the t_get- state() function). Consequently, t_close() may be called in any trans- port provider state to close an open transport endpoint. When t_close() executes, local library resources associated with the transport end- point are automatically freed. In addition, a close() function is called for the referenced file descriptor. The close() function aborts when there are no other file descriptors, in the current or any other process, that reference the same transport endpoint. When close() aborts, any connection that is associated with that transport endpoint is broken. RETURN VALUES Upon successful completion, a value of 0 (zero) is returned. Otherwise, a value of -1 is returned and t_errno is set to indicate the error. ERRORS If the t_close() function fails, t_errno may be set to the following value: File descriptor fd does not refer to a valid transport endpoint. This error indicates that a communication problem has been detected be- tween XTI and the transport provider for which there is no other suit- able XTI(t_errno). RELATED INFORMATION Functions: t_getstate(3), t_open(3), t_unbind(3) delim off t_close(3)