XCH_FLAG_IN_SOL_HASH
if (xch->xch_flags & XCH_FLAG_IN_SOL_HASH) {
xch->xch_flags &= ~XCH_FLAG_IN_SOL_HASH;
if (xch->xch_flags & XCH_FLAG_IN_SOL_HASH) {
xch->xch_flags |= XCH_FLAG_IN_SOL_HASH; \
xch->xch_flags &= ~XCH_FLAG_IN_SOL_HASH;