door_return(3DOOR)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO

NAME

door_return– return from a door invocation

SYNOPSIS

cc [ flag ... ] file ... -ldoor -lthread [ 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(3DOOR). Results, if any, from the door invocation are passed back to the client in the buffers pointed to by data_prt and desc_ptr. If there is not a client associated with the door_return(), the calling thread discards the results and blocks waiting for the next door invocation.

RETURN VALUES

Upon successful completion, door_return() does not return to the calling process. Upon failure, 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_prt 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.

SEE ALSO

door_call(3DOOR)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO