door_return(3C) 					   Standard C Library Functions 					   door_return(3C)

NAME

       door_return - return from a door invocation

SYNOPSIS

       cc -mt [ flag... ] file... [ library... ]
       #include <door.h>

       int door_return(char *data_ptr, size_t data_size, door_desc_t *desc_ptr,
	    uint_t num_desc);

DESCRIPTION

       The  door_return()  function  returns  from  a door invocation. It returns control to the thread that issued the associated door_call() and
       blocks waiting for the next door invocation. See door_call(3C). Results, if any, from the door invocation are passed back  to the client in
       the  buffers  pointed  to by data_ptr and desc_ptr. If there is not a client associated with the door_return(), the calling thread discards
       the results, releases any passed descriptors with the DOOR_RELEASE attribute, and blocks waiting for the next door invocation.

RETURN VALUES

       Upon successful completion, door_return() does not return to the calling process.  Otherwise,  door_return()  returns  -1  to  the  calling
       process and sets errno to indicate the error.

ERRORS

       The  door_return() function fails and returns to the calling process if:

       E2BIG	 Arguments were too big for client.

       EFAULT	 The address of data_ptr or desc_ptr is invalid.

       EINVAL	 Invalid door_return() arguments were passed or a thread is bound to a door that no longer exists.

       EMFILE	 The client has too many open descriptors.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Architecture		     |all			   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       door_call(3C),attributes(5)

SunOS 5.11							    22 Mar 2005 						   door_return(3C)