#ifndef UMBRELLA_CLIENT_H
#define UMBRELLA_CLIENT_H

#include "umbrella.h"

/*
 * client_listen: create and bind the Unix domain socket.
 * Returns the listening fd, or -1 on error.
 */
int client_listen(void);

/*
 * client_accept: accept a new client connection from listen_fd.
 * Adds the client to g.clients and registers it with epoll.
 * Returns 0 on success, -1 on error.
 */
int client_accept(int listen_fd);

/*
 * client_handle: read and dispatch one message from a client fd.
 * Returns 0 to keep the connection, -1 to close it.
 */
int client_handle(int fd);

/*
 * client_remove: close a client connection and remove from g.clients.
 */
void client_remove(int fd);

/*
 * client_find: find a Client by fd.
 * Returns pointer into g.clients, or NULL.
 */
Client *client_find(int fd);

/*
 * client_broadcast_output: send output to all clients attached to unit_name.
 */
void client_broadcast_output(const char *unit_name,
                             const char *data, int history);

#endif /* UMBRELLA_CLIENT_H */