NAME

send − send a (one-word) message to a process

SYNOPSIS

int send(pid, msg)
int pid;
int msg;

DESCRIPTION

Send sends the one-word message msg to the process with id pid.  A process may have at most one outstanding message that has not been received. 

Send returns SYSERR if pid is invalid or if the process already has a message waiting that has not been received.  Otherwise, it sends the message and returns OK. 

SEE ALSO

receive(2), sendf(2), preceive(2), psend(2)

December 01, 1986  —  Xinu Programmer’s Manual