diff options
Diffstat (limited to 'node/Address.hpp')
| -rw-r--r-- | node/Address.hpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/node/Address.hpp b/node/Address.hpp index a045ec61..e4cdf8a7 100644 --- a/node/Address.hpp +++ b/node/Address.hpp @@ -167,6 +167,22 @@ public: } /** + * Test whether this address is within a multicast propagation prefix + * + * Multicast propagation prefixes are (right-to-left a.k.a. LSB to MSB) + * bit pattern prefixes of prefixBits bits that restrict which peers are + * visited along a given multicast graph traversal path. + * + * @param prefix Prefix bit pattern (LSB to MSB) + * @param prefixBits Number of bits in prefix bit pattern + * @return True if address is within prefix + */ + inline bool withinMulticastPropagationPrefix(uint64_t prefix,unsigned int prefixBits) + { + return ((_a & (0xffffffffffffffffULL >> (64 - prefixBits))) == prefix); + } + + /** * @return Hexadecimal string */ inline std::string toString() const |