Guardian Procedure Calls Reference Manual

SIGPROCMASK_ Procedure
NOTE: This procedure can be called only from native processes.
SIGPROCMASK_ is the pTAL procedure name for the C sigprocmask() function. The C
sigprocmask() function complies with the POSIX.1 standard.
For the pTAL prototype definitions, see the $SYSTEM.SYSTEM.HSIGNAL header file. For a discussion
of each parameter and procedure considerations, see the sigprocmask(2) function reference
page either online or in the Open System Services System Calls Reference Manual.
1384 Guardian Procedure Calls (S)