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 socket and adds it to the socket set.
78 returns 0 on success. -1 on failure.
79 socket_type is one of INET or UNIX
80 port is the INET port number
81 sock_path is the UNIX socket file
83 int socket_open_client(socket_manager*,
84 int socket_type, int port, char* sock_path, char* dest_addr);
86 /* returns the socket_node with the given sock_fd */
87 socket_node* socket_find_node(socket_manager*, int sock_fd);
89 /* removes the node with the given sock_fd from the list and frees it */
90 void socket_remove_node(socket_manager*, int sock_fd);
93 /* sends the given data to the given socket. returns 0 on success, -1 otherwise */
94 int socket_send(int sock_fd, const char* data);
96 /* disconnects the node with the given sock_fd and removes
97 it from the socket set */
98 void socket_disconnect(socket_manager*, int sock_fd);
100 /* allocates and inserts a new socket node into the nodeset.
101 if parent_id is positive and non-zero, it will be set */
102 socket_node* _socket_add_node(socket_manager* mgr,
103 int endpoint, int addr_type, int sock_fd, int parent_id );
105 int socket_wait(socket_manager* mgr, int timeout, int sock_fd);
107 /* waits on all sockets for incoming data.
108 timeout == -1 | block indefinitely
109 timeout == 0 | don't block, just read any available data off all sockets
110 timeout == x | block for at most x seconds */
111 int socket_wait_all(socket_manager* mgr, int timeout);
113 /* iterates over the sockets in the set and handles active sockets.
114 new sockets connecting to server sockets cause the creation
115 of a new socket node.
116 Any new data read is is passed off to the data_received callback
118 int _socket_route_data(socket_manager* mgr, int num_active, fd_set* read_set);
120 /* utility function for displaying the currently attached sockets */
121 void _socket_print_list(socket_manager* mgr);
123 int socket_connected(int sock_fd);
126 int _socket_handle_new_client(socket_manager* mgr, socket_node* node);
127 int _socket_handle_client_data(socket_manager* mgr, socket_node* node);