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Files
cjdns/dht/DHTModule.h
2017-01-14 00:57:12 +02:00

61 lines
1.9 KiB
C

/* vim: set expandtab ts=4 sw=4: */
/*
* You may redistribute this program and/or modify it under the terms of
* the GNU General Public License as published by the Free Software Foundation,
* either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef DHTModule_H
#define DHTModule_H
#ifdef SUBNODE
#error "this file should not be included in subnode"
#endif
#include "dht/DHTMessage.h"
/**
* This represents a DHT module.
* Pass one of these to DHTModule_register() and it
* will handle dht requests and responses.
*/
struct DHTModule;
struct DHTModule {
/**
* A user friendly null terminated string which will be used to
* manipulate the module using the DHTModules API.
*/
const char* const name;
/**
* The module's state.
*/
void* context;
/**
* @param the message which came in from a peer.
* @param context the module's state.
* @return 1 if a response should be sent for this message.
* -1 if the message is known invalid and should not be passed
* to any more handlers.
*/
int (* handleIncoming)(struct DHTMessage* message, void* context);
/**
* @param message the message which will be sent to the peer.
* @param context the module's state.
* @return -1 if the message should not be propigated to any more modules.
* use with caution as it may be interpreted as network loss.
*/
int (* handleOutgoing)(struct DHTMessage* message, void* context);
};
#endif