Technical data

60
Chapter 4: System Functions and Subroutines
setoserror set system error
setpgrp set process group ID
setsockopt set options on sockets
setuid set user ID
sginap put process to sleep
shmat attach shared memory
shmdt detach shared memory
sighold raise priority and hold signal
sigignore ignore signal
signal change the action for a signal
sigpause suspend until receive signal
sigrelse release signal and lower priority
sigset specify system signal handling
sleep suspend execution for an interval
socket create an endpoint for communication TCP
sproc create a new share group process
stat get file status
stime set time
symlink make symbolic link
sync update superblock
sysmp control multiprocessing
system issue a shell command
taskblock block tasks
taskcreate create a new task
Table 4-1
(continued) Summary of System Interface Library Routines
Function Purpose