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Beginnings of stream locking

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This commit is contained in:
jmjatlanta 2017-10-12 12:38:00 -05:00
parent b399762d82
commit cfde84b15c
2 changed files with 27 additions and 22 deletions
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3
core/http_request.c
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@ -333,7 +333,8 @@ int ipfs_core_http_process_swarm_connect(struct IpfsNode* local_node, struct Htt
return 0; return 0;
} }
sprintf((char*)response->bytes, json, address); sprintf((char*)response->bytes, json, address);
libp2p_peer_free(new_peer); // getting rid of the peer here will close the connection. That's not what we want
//libp2p_peer_free(new_peer);
multiaddress_free(ma); multiaddress_free(ma);
return 1; return 1;

46
exchange/bitswap/engine.c
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@ -96,30 +96,34 @@ void* ipfs_bitswap_engine_peer_request_processor_start(void* ctx) {
if (current_peer_entry->sessionContext == NULL || current_peer_entry->sessionContext->default_stream == NULL) { if (current_peer_entry->sessionContext == NULL || current_peer_entry->sessionContext->default_stream == NULL) {
current_peer_entry->connection_type = CONNECTION_TYPE_NOT_CONNECTED; current_peer_entry->connection_type = CONNECTION_TYPE_NOT_CONNECTED;
} else { } else {
//libp2p_logger_debug("bitswap_engine", "We're connected to %s. Lets see if there is a message waiting for us.\n", libp2p_peer_id_to_string(current_peer_entry)); // check the network to see if there is anything waiting for us (if the stream is idle)
int retVal = current_peer_entry->sessionContext->default_stream->peek(current_peer_entry->sessionContext); if (libp2p_stream_try_lock(current_peer_entry->sessionContext->default_stream)) {
if (retVal < 0) { libp2p_logger_error("bitswap_engine", "I have the lock for peer %s.\n", libp2p_peer_id_to_string(current_peer_entry));
libp2p_logger_debug("bitswap_engine", "We thought we were connected, but Peek reported an error.\n"); int retVal = current_peer_entry->sessionContext->default_stream->peek(current_peer_entry->sessionContext);
libp2p_peer_handle_connection_error(current_peer_entry); if (retVal < 0) {
} else if (retVal > 0) { libp2p_logger_debug("bitswap_engine", "We thought we were connected, but Peek reported an error.\n");
libp2p_logger_debug("bitswap_engine", "%d bytes waiting on network for peer %s.\n", retVal, libp2p_peer_id_to_string(current_peer_entry)); libp2p_peer_handle_connection_error(current_peer_entry);
unsigned char* buffer = NULL; } else if (retVal > 0) {
size_t buffer_len = 0; libp2p_logger_debug("bitswap_engine", "%d bytes waiting on network for peer %s.\n", retVal, libp2p_peer_id_to_string(current_peer_entry));
if (current_peer_entry->sessionContext->default_stream->read(current_peer_entry->sessionContext, &buffer, &buffer_len, 1)) { unsigned char* buffer = NULL;
// handle it size_t buffer_len = 0;
libp2p_logger_debug("bitswap_engine", "%lu bytes read, result: [%s].\n", buffer_len, buffer); if (current_peer_entry->sessionContext->default_stream->read(current_peer_entry->sessionContext, &buffer, &buffer_len, 1)) {
int retVal = libp2p_protocol_marshal(buffer, buffer_len, current_peer_entry->sessionContext, context->ipfsNode->protocol_handlers); // handle it
free(buffer); libp2p_logger_debug("bitswap_engine", "%lu bytes read, result: [%s].\n", buffer_len, buffer);
did_some_processing = 1; int retVal = libp2p_protocol_marshal(buffer, buffer_len, current_peer_entry->sessionContext, context->ipfsNode->protocol_handlers);
if (retVal == -1) { free(buffer);
libp2p_logger_error("bitswap_engine", "protocol_marshal tried to handle the network traffic, but failed.\n"); did_some_processing = 1;
// there was a problem. Clean up if (retVal == -1) {
libp2p_logger_error("bitswap_engine", "protocol_marshal tried to handle the network traffic, but failed.\n");
// there was a problem. Clean up
libp2p_peer_handle_connection_error(current_peer_entry);
}
} else {
libp2p_logger_error("bitswap_engine", "It was said that there was %d bytes to read, but there wasn't. Cleaning up connection.\n");
libp2p_peer_handle_connection_error(current_peer_entry); libp2p_peer_handle_connection_error(current_peer_entry);
} }
} else {
libp2p_logger_error("bitswap_engine", "It was said that there was %d bytes to read, but there wasn't. Cleaning up connection.\n");
libp2p_peer_handle_connection_error(current_peer_entry);
} }
libp2p_stream_unlock(current_peer_entry->sessionContext->default_stream);
} }
} }
} else { } else {