secure_point
secure_point — alters the security level on a point.
Syntax
secure_point (symbol, security)
Arguments
- symbol
The point to alter, as a symbol.
- security
The new security level for this point.
Returns
t on success, or
nil if an error
occurred.
Description
This function alters the security level on a point in the
Cascade DataHub. If the current process security level is lower than
the named point (symbol), then the
function returns nil, otherwise it
returns t. The
initial security level for a process is 0.
Example
Gamma> init_ipc("spt","spq");
t
Gamma> secure_point(#d,5);
nil
Gamma> set_security(9);
0
Gamma> secure_point(#d,5);
t
Gamma> secure_point(#d,12);
nil
Gamma> set_security(15);
9
Gamma> secure_point(#d,12);
t
Gamma>
