Chapter 27

os.ss: System Utilities

To load: (require (lib "os.ss"))

(gethostname)      PROCEDURE

Returns a string for the current machine's hostname (including its domain).

(getpid)      PROCEDURE

Returns an exact integer identifying the current process within the operating system.

(truncate-file path [size-k])      PROCEDURE

Truncates or extends the given file so that it is size-k bytes long, where size-k defaults to 0. If the file does not exist, or if the process does not have sufficient privilege to truncate the file, the exn:fail exception is raised.

WARNING: under Unix, the implementation assumes that the system's ftruncate function accepts a long long second argument.