Technical data

Library Functions
61
taskctl control task
taskdestroy kill task
tasksetblockcnt set task semaphore count
taskunblock unblock task
time
a
return system time
ttynam find name of terminal port
uadmin administrative control
ulimit get and set user limits
umask get and set file creation mask
umount dismount a file system
unblockproc unblock processes
unlink remove a directory entry
uscalloc shared memory allocator
uscas compare and swap operator
usclosepollsema detach file descriptor from a pollable semaphore
usconfig semaphore and lock configuration operations
uscpsema acquire a semaphore
uscsetlock unconditionally set lock
usctlsema semaphore control operations
usdumplock dump lock information
usdumpsema dump semaphore information
usfree user shared memory allocation
usfreelock free a lock
usfreepollsema free a pollable semaphore
Table 4-1
(continued) Summary of System Interface Library Routines
Function Purpose