tree 5b69e5e01c87bf3d25499c5adf3c4b1a1dde21c9
parent 4ee43476917b4d203c919471662c7e740cf6205a
author Ben Wagner <bungeman@chromium.org> 1604024940 -0400
committer Akira TAGOH <akira@tagoh.org> 1604293524 +0000

Fix fc_atomic_ptr_get and use.

Before this change building with ThreadSanitizer and running
test/test-pthread generated a large number of threading issues. These
mostly stemmed from fc_atomic_ptr_get not doing an atomic load and using
"acquire load" instead of "load acquire". After making these changes it
was still necessary to use fc_atomic_ptr_get where it was needed.

This also documents the current memory barrier requirements for the
atomic primitives.