Thawing a server library is the act of changing the frozen library process from a permanent library into a temporary library. By contrast, the act of resuming a library causes the server library to be deactivated, and causes the server library process to resume execution as an ordinary process. Execution of the process resumes with the first statement after the FREEZE statement.

STATUS Attribute and THAW Command

You can thaw a server library process programmatically through assignments to the STATUS task attribute of a process, or operationally through the THAW (Thaw Frozen Library) system command. For details, refer to Monitoring and Controlling Process Status.

CANCEL Statement

Additionally, you can resume a server library process programmatically with the CANCEL statement in ALGOL, as discussed under Delinking from Server Libraries later in this section.