static xdr::msg_ptr
duplicateMessage(xdr::msg_ptr const& msg)
{
xdr::msg_ptr msg2 = xdr::message_t::alloc(msg->size());
memcpy(msg2->raw_data(), msg->raw_data(), msg->raw_size());
return std::move(msg2);
}
static bool
damageMessage(default_random_engine& gen, xdr::msg_ptr& msg)
{
size_t bitsFlipped = 0;
char* d = msg->raw_data();
char* e = msg->end();
size_t sz = e - d;
if (sz > 0)
{
auto dist = uniform_int_distribution<size_t>(0, sz - 1);
auto byteDist = uniform_int_distribution<int>(0, 7);
size_t nDamage = dist(gen);
while (nDamage != 0)
{
--nDamage;
auto pos = dist(gen);
d[pos] ^= 1 << byteDist(gen);
bitsFlipped++;
}
}
return bitsFlipped != 0;
}