forked from agorise/c-ipfs
135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
#include <stdlib.h>
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#include "multiaddr/multiaddr.h"
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#include "libp2p/utils/linked_list.h"
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#include "libp2p/utils/logger.h"
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#include "ipfs/repo/config/replication.h"
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/**
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* Allocate a new ReplicationPeer struct
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* @returns the new struct
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*/
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struct ReplicationPeer* repo_config_replication_peer_new() {
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struct ReplicationPeer* rp = (struct ReplicationPeer*) malloc(sizeof(struct ReplicationPeer));
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if (rp != NULL) {
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rp->lastConnect = 0;
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rp->lastJournalTime = 0;
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rp->peer = NULL;
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}
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return rp;
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}
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/***
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* Free the resources of a ReplicationPeer
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* @param rp the ReplicationPeer to free
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* @returns true(1)
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*/
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int repo_config_replication_peer_free(struct ReplicationPeer* rp) {
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if (rp != NULL) {
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// we allocated the peer structure, so we must remove it
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libp2p_peer_free(rp->peer);
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free(rp);
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}
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return 1;
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}
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/***
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* allocate memory and initialize the replication struct
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* @param replication a pointer to the struct to be allocated
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* @returns true(1) on success, false(0) otherwise
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*/
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int repo_config_replication_new(struct Replication** replication) {
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*replication = (struct Replication*)malloc(sizeof(struct Replication));
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if (*replication == NULL)
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return 0;
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struct Replication* out = *replication;
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out->announce_minutes = 0;
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out->replication_peers = NULL;
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return 1;
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}
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/***
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* Frees memory of a replication struct
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* @param replication the replication struct
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* @returns true(1);
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*/
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int repo_config_replication_free(struct Replication* replication) {
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if (replication != NULL) {
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// free the vector
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if (replication->replication_peers != NULL) {
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for(int i = 0; i < replication->replication_peers->total; i++) {
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struct ReplicationPeer* currAddr = (struct ReplicationPeer*)libp2p_utils_vector_get(replication->replication_peers, i);
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repo_config_replication_peer_free(currAddr);
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}
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libp2p_utils_vector_free(replication->replication_peers);
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}
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// free the struct
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free(replication);
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}
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return 1;
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}
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/***
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* Given a peer, return the ReplicationPeer record
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* @param replication the context
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* @param key the peer to look for
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* @returns the ReplicationPeer struct, or NULL if not found
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*/
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struct ReplicationPeer* repo_config_get_replication_peer(struct Replication* replication, struct Libp2pPeer* key) {
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if (replication != NULL) {
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if (replication->replication_peers != NULL) {
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for(int i = 0; i < replication->replication_peers->total; i++) {
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struct ReplicationPeer* confAddr = (struct ReplicationPeer*) libp2p_utils_vector_get(replication->replication_peers, i);
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if (libp2p_peer_matches_id(confAddr->peer, (unsigned char*)key->id, key->id_size)) {
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return confAddr;
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}
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}
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}
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}
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return NULL;
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}
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/***
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* Determines if this peer is one of our approved replication nodes
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* @param replication the replication struct
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* @param peer the peer to examine
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* @returns true(1) if this peer should be kept syncronized, false(0) otherwise
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*/
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int repo_config_replication_approved_node(struct Replication* replication, struct Libp2pPeer* peer) {
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if (replication != NULL) {
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if (repo_config_get_replication_peer(replication, peer) != NULL) {
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return 1;
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}
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}
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return 0;
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}
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/**
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* Determine the last time a replication was successful for this peer (at least we sent it something without error)
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* @param replication the replication struct
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* @param peer the peer to examine
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* @returns the time since the last replication, or the announce time if we have no record
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*/
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/*
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unsigned long long repo_config_replication_last_attempt(struct Replication* replication, struct Libp2pPeer* peer) {
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struct ReplicationPeer* rp = repo_config_get_replication_peer(replication, peer);
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if (rp != NULL) {
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return rp->lastConnect;
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}
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return 0;
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}
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*/
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/***
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* Determine the last journal record time that was sent to this peer
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* @param replication the replication struct
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* @param peer the peer to examine
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* @returns the time of the last journal entry successfully sent
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*/
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unsigned long long repo_config_replication_last_journal_time(struct Replication* replication, struct Libp2pPeer* peer) {
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struct ReplicationPeer* rp = repo_config_get_replication_peer(replication, peer);
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if (rp != NULL) {
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return rp->lastJournalTime;
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}
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return 0;
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}
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