11 //---------------------------------------------------------------
13 //---------------------------------------------------------------
18 #include <sys/socket.h>
19 #include <arpa/inet.h>
21 #include <netinet/in.h>
26 #ifndef SOCKET_BUNDLE_H
27 #define SOCKET_BUNDLE_H
30 #define SERVER_SOCKET 1
31 #define CLIENT_SOCKET 2
36 /* buffer used to read from the sockets */
40 /* models a single socket connection */
41 struct socket_node_struct {
42 int endpoint; /* SERVER_SOCKET or CLIENT_SOCKET */
43 int addr_type; /* INET or UNIX */
45 int parent_id; /* if we're a new client for a server socket,
46 this points to the server socket we spawned from */
47 struct socket_node_struct* next;
49 typedef struct socket_node_struct socket_node;
52 /* Maintains the socket set */
53 struct socket_manager_struct {
54 /* callback for passing up any received data. sock_fd is the socket
55 that read the data. parent_id (if > 0) is the socket id of the
56 server that this socket spawned from (i.e. it's a new client connection) */
58 (void* blob, struct socket_manager_struct*,
59 int sock_fd, char* data, int parent_id);
61 void (*on_socket_closed) (void* blob, int sock_fd);
66 typedef struct socket_manager_struct socket_manager;
68 void socket_manager_free(socket_manager* mgr);
70 /* creates a new server socket node and adds it to the socket set.
71 returns socket id on success. -1 on failure.
72 socket_type is one of INET or UNIX */
73 int socket_open_tcp_server(socket_manager*, int port);
75 int socket_open_unix_server(socket_manager* mgr, char* path);
77 /* creates a client TCP socket and adds it to the socket set.
78 returns 0 on success. -1 on failure. */
79 int socket_open_tcp_client(socket_manager*, int port, char* dest_addr);
81 /* creates a client UNIX socket and adds it to the socket set.
82 returns 0 on success. -1 on failure. */
83 int socket_open_unix_client(socket_manager*, char* sock_path);
85 /* returns the socket_node with the given sock_fd */
86 socket_node* socket_find_node(socket_manager*, int sock_fd);
88 /* removes the node with the given sock_fd from the list and frees it */
89 void socket_remove_node(socket_manager*, int sock_fd);
92 /* sends the given data to the given socket. returns 0 on success, -1 otherwise */
93 int socket_send(int sock_fd, const char* data);
95 /* disconnects the node with the given sock_fd and removes
96 it from the socket set */
97 void socket_disconnect(socket_manager*, int sock_fd);
99 /* allocates and inserts a new socket node into the nodeset.
100 if parent_id is positive and non-zero, it will be set */
101 socket_node* _socket_add_node(socket_manager* mgr,
102 int endpoint, int addr_type, int sock_fd, int parent_id );
104 int socket_wait(socket_manager* mgr, int timeout, int sock_fd);
106 /* waits on all sockets for incoming data.
107 timeout == -1 | block indefinitely
108 timeout == 0 | don't block, just read any available data off all sockets
109 timeout == x | block for at most x seconds */
110 int socket_wait_all(socket_manager* mgr, int timeout);
112 /* iterates over the sockets in the set and handles active sockets.
113 new sockets connecting to server sockets cause the creation
114 of a new socket node.
115 Any new data read is is passed off to the data_received callback
117 int _socket_route_data(socket_manager* mgr, int num_active, fd_set* read_set);
119 /* utility function for displaying the currently attached sockets */
120 void _socket_print_list(socket_manager* mgr);
122 int socket_connected(int sock_fd);
125 int _socket_handle_new_client(socket_manager* mgr, socket_node* node);
126 int _socket_handle_client_data(socket_manager* mgr, socket_node* node);