[thread] Signals Kernel Calls

[ppenna]

Description

The following interface should be supported, in order to enable threads to catch, send and manage signals.

Structures

• struct sigaction: describes actions on the receipt of a signal

Functions

• err = alarm(sec): schedules an alarm signal
• err = sigsend(signum, tid): sends a signal
• err = sigwait(signum): waits for the receipt of a signal
• err = sigctl(signum, &sigact): controls the behavior of a signal
• sigreturn(): returns from a signal handler

Roadmap

• sigctl() introduced in commit a9e9f2a967dda7b5438d2b9bd02797032222c2bd.