extern int wait_reply(int fd, int tmo);
extern int connect_monitor(char *devname);
extern int ping_monitor(char *devname);
extern int wait_reply(int fd, int tmo);
extern int connect_monitor(char *devname);
extern int ping_monitor(char *devname);
extern int block_monitor(char *container, const int freeze);
extern void unblock_monitor(char *container, const int unfreeze);
extern int fping_monitor(int sock);
extern int ping_manager(char *devname);
extern int block_monitor(char *container, const int freeze);
extern void unblock_monitor(char *container, const int unfreeze);
extern int fping_monitor(int sock);
extern int ping_manager(char *devname);