- save_registers: save them only when the marker is active (complicated because we need to know their value at the address that is put in struct marker)
- make streaming work, including periodical flush
- make a system (signal-based?) that allow the listener thread to not be started initially
- save_registers: save them only when the marker is active (complicated because we need to know their value at the address that is put in struct marker)
- make streaming work, including periodical flush
- make a system (signal-based?) that allow the listener thread to not be started initially