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21f51965c1
Make .o files in separate subdirectories for servald and library Factor struct __sourceloc and __WHENCE__ from "log.h" into "whence.h" Factor sid_t etc from "serval.h" into "serval_types.h" Factor rhizome_bid_t etc from "rhizome.h" into "rhizome_types.h" Do not include "serval.h" in library sources Add log_stderr.c and logMessage.c for stand-alone executables
111 lines
3.8 KiB
C
111 lines
3.8 KiB
C
/*
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Mesh Stream Protocol (MSP) API
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Copyright (C) 2013-2014 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SERVAL_DNA__MSP_CLIENT_H
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#define __SERVAL_DNA__MSP_CLIENT_H
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#include "constants.h" // for MDP_MTU
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#ifndef __MSP_CLIENT_INLINE
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# if __GNUC__ && !__GNUC_STDC_INLINE__
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# define __MSP_CLIENT_INLINE extern inline
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# else
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# define __MSP_CLIENT_INLINE inline
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# endif
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#endif
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#define MSP_PAYLOAD_PREAMBLE_SIZE 5
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#define MSP_MESSAGE_SIZE (MDP_MTU - MSP_MESSAGE_PREAMBLE_SIZE)
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typedef uint16_t msp_state_t;
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struct msp_sock;
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struct msp_handle {
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struct msp_sock *ptr;
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unsigned salt;
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};
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typedef struct msp_handle MSP_SOCKET;
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#define MSP_SOCKET_NULL ((MSP_SOCKET){.ptr=NULL,.salt=0})
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__MSP_CLIENT_INLINE int msp_socket_is_null(MSP_SOCKET sock) {
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return sock.ptr == NULL;
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}
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int msp_socket_is_valid(MSP_SOCKET);
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// socket lifecycle
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msp_state_t msp_get_state(MSP_SOCKET sock);
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#define MSP_STATE_UNINITIALISED ((msp_state_t) 0)
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#define MSP_STATE_LISTENING ((msp_state_t) (1<<0))
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#define MSP_STATE_RECEIVED_DATA ((msp_state_t) (1<<1))
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#define MSP_STATE_RECEIVED_PACKET ((msp_state_t) (1<<2))
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#define MSP_STATE_SHUTDOWN_LOCAL ((msp_state_t) (1<<3))
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#define MSP_STATE_SHUTDOWN_REMOTE ((msp_state_t) (1<<4))
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// this connection is about to be free'd, release any other resources or references to the state
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#define MSP_STATE_CLOSED ((msp_state_t) (1<<5))
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// something has gone wrong somewhere
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#define MSP_STATE_ERROR ((msp_state_t) (1<<6))
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// is there space for sending more data?
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#define MSP_STATE_DATAOUT ((msp_state_t) (1<<7))
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#define MSP_STATE_STOPPED ((msp_state_t) (1<<8))
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int msp_socket_is_initialising(MSP_SOCKET);
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int msp_socket_is_open(MSP_SOCKET);
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int msp_socket_is_closed(MSP_SOCKET);
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int msp_socket_is_listening(MSP_SOCKET);
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int msp_socket_is_data(MSP_SOCKET);
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int msp_socket_is_connected(MSP_SOCKET);
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int msp_socket_is_shutdown_local(MSP_SOCKET);
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int msp_socket_is_shutdown_remote(MSP_SOCKET);
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unsigned msp_socket_count(void);
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// allocate a new socket
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MSP_SOCKET msp_socket(int mdp_sock, int flags);
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// initialise a socket
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void msp_set_local(MSP_SOCKET sock, const struct mdp_sockaddr *local);
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void msp_connect(MSP_SOCKET sock, const struct mdp_sockaddr *remote);
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int msp_listen(MSP_SOCKET sock);
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// close socket(s)
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int msp_shutdown(MSP_SOCKET sock);
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void msp_stop(MSP_SOCKET sock);
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void msp_close_all(int mdp_sock);
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void msp_debug(void);
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typedef size_t MSP_HANDLER(MSP_SOCKET sock, msp_state_t state, const uint8_t *payload, size_t len, void *context);
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void msp_set_handler(MSP_SOCKET sock, MSP_HANDLER *handler, void *context);
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int msp_get_mdp_socket(MSP_SOCKET); // returns arg passed to msp_socket() if MSP_SOCKET is valid
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void msp_get_local(MSP_SOCKET sock, struct mdp_sockaddr *addr);
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void msp_get_remote(MSP_SOCKET sock, struct mdp_sockaddr *addr);
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// bind, send data, and potentially shutdown this end of the connection
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ssize_t msp_send(MSP_SOCKET sock, const uint8_t *payload, size_t len);
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// receive and process an incoming packet
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int msp_recv(int mdp_sock);
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// next_action indicates the next time that msp_processing should be called
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int msp_processing(time_ms_t *next_action);
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#endif //__SERVAL_DNA__MSP_CLIENT_H
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