int fce_register_tm_size(const char *vol, size_t used);
int fce_add_udp_socket(const char *target ); // IP or IP:Port
-int fce_set_coalesce( char *coalesce_opt ); // all|delete|create
+int fce_set_coalesce(const char *coalesce_opt ); // all|delete|create
int fce_set_events(const char *events); /* fmod,fdel,ddel,fcre,dcre,tmsz (default is all except tmsz) */
#define FCE_DEFAULT_PORT 12250