Rewrite isc_refcount API after stdatomics and use release-acquire memory barriers

10 jobs for 10-atomic-refcount in 8 minutes and 3 seconds (queued for 22 seconds)
latest
Status Job ID Name Coverage
  Precheck
passed #14105
linux docker amd64
precheck:debian:sid:amd64

00:00:10

 
  Build
passed #14106
linux docker amd64
build:clang:debian:sid:amd64

00:02:41

passed #14108
linux docker i386
build:clang:debian:sid:i386

00:02:59

passed #14107
linux docker amd64
build:debian:sid:amd64

00:01:31

passed #14109
linux docker i386
build:debian:sid:i386

00:01:36

 
  Test
passed #14113
linux docker amd64
systemtest:debian:sid:amd64

00:04:35

passed #14114
linux docker i386
systemtest:debian:sid:i386

00:04:52

passed #14111
linux docker amd64
unittest:clang:debian:sid:amd64

00:01:40

passed #14110
linux docker amd64
unittest:debian:sid:amd64

00:02:51

passed #14112
linux docker i386
unittest:debian:sid:i386

00:02:51