The GNU libc manual documents the original POSIX specification for signal handling functions. However subsequent POSIX standards expanded this functionality and the enhancements are often referred to as "realtime signals". This implies that these so-called realtime signals have bounded/prioritised delivery times but it is unclear whether this is the case, and in fact a broader range of new functionality is introduced which is independent of real-time qualities.more...
The standard Perl distribution comes with a debugger, although it's really just another Perl program, perl5db.pl. Since it is just a program, I can use it as the basis for writing my own debuggers to suit my needs, or I can use the interface perl5db.pl provides to configure its actions. That's just the beginning, though. read more...
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