std::string to_string(const node_id& x) {
if (!x)
return "none";
return deep_to_string(meta::type_name("node_id"),
x.process_id(),
meta::hex_formatted(),
x.host_id());
}
int node_id::compare(const node_id& other) const {
int tmp = strncmp(reinterpret_cast<const char*>(host_id().data()),
reinterpret_cast<const char*>(other.host_id().data()),
host_id_size);
if (tmp == 0) {
if (m_process_id < other.process_id()) return -1;
else if (m_process_id == other.process_id()) return 0;
return 1;
}
return tmp;
}
int node_id::compare(const node_id& other) const {
if (this == &other || data_ == other.data_)
return 0; // shortcut for comparing to self or identical instances
if (! data_ != ! other.data_)
return data_ ? 1 : -1; // invalid instances are always smaller
int tmp = strncmp(reinterpret_cast<const char*>(host_id().data()),
reinterpret_cast<const char*>(other.host_id().data()),
host_id_size);
return tmp != 0
? tmp
: (process_id() < other.process_id()
? -1
: (process_id() == other.process_id() ? 0 : 1));
}
int node_id::compare(const node_id& other) const {
if (this == &other || data_ == other.data_)
return 0; // shortcut for comparing to self or identical instances
if (!data_ != !other.data_)
return data_ ? 1 : -1; // invalid instances are always smaller
// use mismatch instead of strncmp because the
// latter bails out on the first 0-byte
auto last = host_id().end();
auto ipair = std::mismatch(host_id().begin(), last, other.host_id().begin());
if (ipair.first == last)
return static_cast<int>(process_id())-static_cast<int>(other.process_id());
else if (*ipair.first < *ipair.second)
return -1;
else
return 1;
}
int node_id::compare(const node_id& other) const {
if (this == &other) {
return 0; // shortcut for comparing to self
}
if (m_data == other.m_data) {
return 0; // shortcut for identical instances
}
if ((m_data != nullptr) != (other.m_data != nullptr)) {
return m_data ? 1 : -1; // invalid instances are always smaller
}
int tmp = strncmp(reinterpret_cast<const char*>(host_id().data()),
reinterpret_cast<const char*>(other.host_id().data()),
host_id_size);
if (tmp == 0) {
if (process_id() < other.process_id()) {
return -1;
} else if (process_id() == other.process_id()) {
return 0;
}
return 1;
}
return tmp;
}
std::string to_string(const node_id& what) {
std::ostringstream oss;
oss << what.process_id() << "@" << to_string(what.host_id());
return oss.str();
}
node_id::node_id(const node_id& other)
: super(), m_process_id(other.process_id()), m_host_id(other.host_id()) { }