Signal management in operations with multiple waits

An article of manufacture comprising a program storage medium having computer readable code embodied therein, said computer readable code being configured for handling a first signal received at a client context, comprising:

• computer readable code for saving a signal mask bitmap into a saved signal mask bitmap when said client context enters a wait mode, thereby preserving data in said signal mask bitmap;
• computer readable code for masking said first signal in said signal mask bitmap, thereby causing said client context to defer taking action on said first signal;
• and
• computer readable code for masking said first signal in a pending signals bitmap, thereby permitting said first signal to be tracked as pending with said client context.

A computer-implemented method for handling a first signal received at a client context, said client context residing in a kernel space of an operating system of a client computer node, comprising:

• copying a signal mask bitmap into a saved signal mask bitmap when said client context enters a wait mode, thereby preserving data in said signal mask bitmap;
• receiving said first signal;
• if said first signal is a signal requiring said client context to request handling by a server context, performing steps a), b), and c) wherein
• a) forwarding said first signal to a server context for handling;
• b) masking said first signal in said signal mask bitmap, thereby causing said client context to defer taking action on said first signal;
• and
• c) masking said first signal in a pending signals bitmap, thereby permitting said first signal to be tracked as pending with said client context, said client context ignoring, when said first signal is tracked in said pending signals bitmap, subsequently received signals pertaining to instances of said first signal.