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Return a copy of the block from the exchange, not the block itself 

Returning the block itself will cause problems when a client deallocates
the block.
yamux
John Jones 2017-10-09 10:01:29 -05:00
parent f69ab92469
commit 98b1e0fef4
3 changed files with 9 additions and 4 deletions
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2
exchange/bitswap/bitswap.c
View File

@ -183,7 +183,7 @@ int ipfs_bitswap_get_block(struct Exchange* exchange, struct Cid* cid, struct Bl
// loop waiting for it to fill
while(1) {
if (want_entry->block != NULL) {
*block = want_entry->block;
*block = ipfs_block_copy(want_entry->block);
// error or not, we no longer need the block (decrement reference count)
ipfs_bitswap_want_manager_remove(bitswapContext, cid);
if (*block == NULL) {

2
exchange/bitswap/network.c
View File

@ -20,7 +20,7 @@
int ipfs_bitswap_network_send_message(const struct BitswapContext* context, struct Libp2pPeer* peer, const struct BitswapMessage* message) {
libp2p_logger_debug("bitswap_network", "Sending bitswap message to %s.\n", libp2p_peer_id_to_string(peer));
// get a connection to the peer
if (peer->connection_type != CONNECTION_TYPE_CONNECTED) {
if (peer->connection_type != CONNECTION_TYPE_CONNECTED || peer->sessionContext == NULL) {
libp2p_peer_connect(&context->ipfsNode->identity->private_key, peer, context->ipfsNode->peerstore, context->ipfsNode->repo->config->datastore, 10);
if(peer->connection_type != CONNECTION_TYPE_CONNECTED)
return 0;

9
test/exchange/test_bitswap.h
View File

@ -381,8 +381,9 @@ int test_bitswap_retrieve_file_third_party() {
libp2p_logger_add_class("providerstore");
libp2p_logger_add_class("peerstore");
libp2p_logger_add_class("exporter");
libp2p_logger_add_class("peer");
*/
libp2p_logger_add_class("peer");
libp2p_logger_add_class("bitswap_network");
libp2p_logger_add_class("test_bitswap");
libp2p_logger_add_class("null");
libp2p_logger_add_class("online");
@ -398,6 +399,7 @@ int test_bitswap_retrieve_file_third_party() {
struct Libp2pVector* ma_vector2 = NULL, *ma_vector3 = NULL;
struct HashtableNode* node = NULL;
struct Block* result = NULL;
struct HashtableNode* result_node = NULL;
struct Cid* cid = NULL;
// create peer 1
@ -468,7 +470,8 @@ int test_bitswap_retrieve_file_third_party() {
goto exit;
}
if (node->data_size != result->data_length) {
ipfs_merkledag_convert_block_to_node(result, &result_node);
if (node->data_size != result_node->data_size) {
libp2p_logger_error("test_bitswap", "Result sizes do not match. Should be %lu but is %lu\n", node->data_size, result->data_length);
goto exit;
}
@ -498,6 +501,8 @@ int test_bitswap_retrieve_file_third_party() {
ipfs_hashtable_node_free(node);
if (result != NULL)
ipfs_block_free(result);
if (result_node != NULL)
ipfs_hashtable_node_free(result_node);
if (cid != NULL)
ipfs_cid_free(cid);
return retVal;