Bucardo uses the LISTEN/NOTIFY system to communicate between processes (MCP, CTLs, and KIDs).

Items the MCP listens for:

• bucardo_mcp_ping
• bucardo_activate_sync_$syncname
• bucardo_deactivate_sync_$syncname
• bucardo_reload_sync_$syncname
• bucardo_kick_sync_$syncname
• bucardo_mcp_fullstop
• bucardo_mcp_reload
• bucardo_reload_config
• bucardo_log_message

Notices issued by the MCP:

• bucardo_mcp_pong
• bucardo_boot
• bucardo_reload_config_finished
• bucardo_reloaded_mcp
• bucardo_nosyncs
• bucardo_started
• bucardo_stopped
• bucardo_syncerror_$syncname
• bucardo_reload_config_finished
• bucardo_reloaded_mcp
• bucardo_reloaded_sync_$syncname
• bucardo_activated_sync_$syncname
• bucardo_deactivated_sync_$syncname
• bucardo_kick_$syncname

Items the CTL listens for:

• bucardo_$$_ping
• bucardo_kick_$syncname
• bucardo_syncdone_$syncname_$db

Notices issued by the CTL:

• bucardo_$$_pong
• bucardo_syncdone_$syncname
• bucardo_q_$syncname_$targetdb

Items the KID listens for:

• bucardo_kid_$$_ping
• bucardo_q_$syncname_$targetdb

Notices issued by the KID:

• bucardo_kid_$$_pong
• bucardo_syncdone_$syncname_$targetdb
• bucardo_synckill_$syncname_$targetdb
• bucardo_synckill_$syncname