Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2024. The current version is 1.90.0.
Checks whether the server is alive.
void ping( error_code& err, diagnostics& diag);
If the server is alive, this function will complete without error. If it's not, it will fail with the relevant network or protocol error.
Note that ping requests are treated as any other type of request at the protocol level, and won't be prioritized anyhow by the server. If the server is stuck in a long-running query, the ping request won't be answered until the query is finished.