LSTYLE_POSIX
case LSTYLE_POSIX:
assert_write_locked_by(lock1, styleA == LSTYLE_POSIX ? pidA : -1);
assert_write_locked_by(lock1, styleB == LSTYLE_POSIX ? pidB : -1);
assert_read_locked_by(lock1, styleA == LSTYLE_POSIX ? pidA : -1);
assert_read_locked_by(lock1, styleB == LSTYLE_POSIX ? pidB : -1);
case LSTYLE_POSIX:
case LSTYLE_POSIX:
return (LSTYLE_POSIX);