Bruce Momjian <pgman@candle.pha.pa.us> writes:
>>>>> how about sigpause, and using SIGUSR1/SIGUSR2 to wake them up ?
> The standard is sigsuspend:
OK, we can probably assume that at least one of sigsuspend or sigpause
is available everywhere. Now all you need is a free signal number.
Unfortunately we're already using both SIGUSR1 and SIGUSR2.
regards, tom lane