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Location: cpp/openttd-patchpack/source/src/network/core/tcp_content.cpp - annotation
r11049:6eb2c87ed64a
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(svn r15389) -Feature: Add ability to select which base graphics set is used from the Game Options window. The change takes effect when the window is closed. This option can only be used from the intro menu, as reloading graphics during a game may cause issues.
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/**
* @file tcp_content.cpp Basic functions to receive and send Content packets.
*/
#ifdef ENABLE_NETWORK
#include "../../stdafx.h"
#include "../../debug.h"
#include "tcp_content.h"
ContentInfo::ContentInfo()
{
memset(this, 0, sizeof(*this));
}
ContentInfo::~ContentInfo()
{
free(this->dependencies);
free(this->tags);
}
size_t ContentInfo::Size() const
{
size_t len = 0;
for (uint i = 0; i < this->tag_count; i++) len += strlen(this->tags[i]) + 1;
/* The size is never larger than the content info size plus the size of the
* tags and dependencies */
return sizeof(*this) +
sizeof(this->dependency_count) +
sizeof(*this->dependencies) * this->dependency_count;
}
bool ContentInfo::IsSelected() const
{
switch (this->state) {
case ContentInfo::SELECTED:
case ContentInfo::AUTOSELECTED:
return true;
default:
return false;
}
}
bool ContentInfo::IsValid() const
{
return this->state < ContentInfo::INVALID && this->type >= CONTENT_TYPE_BEGIN && this->type < CONTENT_TYPE_END;
}
void NetworkContentSocketHandler::Close()
{
CloseConnection();
if (this->sock == INVALID_SOCKET) return;
closesocket(this->sock);
this->sock = INVALID_SOCKET;
}
/**
* Defines a simple (switch) case for each network packet
* @param type the packet type to create the case for
*/
#define CONTENT_COMMAND(type) case type: return this->NetworkPacketReceive_ ## type ## _command(p); break;
/**
* Handle an incoming packets by sending it to the correct function.
* @param p the received packet
*/
bool NetworkContentSocketHandler::HandlePacket(Packet *p)
{
PacketContentType type = (PacketContentType)p->Recv_uint8();
switch (this->HasClientQuit() ? PACKET_CONTENT_END : type) {
CONTENT_COMMAND(PACKET_CONTENT_CLIENT_INFO_LIST);
CONTENT_COMMAND(PACKET_CONTENT_CLIENT_INFO_ID);
CONTENT_COMMAND(PACKET_CONTENT_CLIENT_INFO_EXTID);
CONTENT_COMMAND(PACKET_CONTENT_CLIENT_INFO_EXTID_MD5);
CONTENT_COMMAND(PACKET_CONTENT_SERVER_INFO);
CONTENT_COMMAND(PACKET_CONTENT_CLIENT_CONTENT);
CONTENT_COMMAND(PACKET_CONTENT_SERVER_CONTENT);
default:
if (this->HasClientQuit()) {
DEBUG(net, 0, "[tcp/content] received invalid packet type %d from %s:%d", type, inet_ntoa(this->client_addr.sin_addr), ntohs(this->client_addr.sin_port));
} else {
DEBUG(net, 0, "[tcp/content] received illegal packet from %s:%d", inet_ntoa(this->client_addr.sin_addr), ntohs(this->client_addr.sin_port));
}
return false;
}
}
/**
* Receive a packet at UDP level
*/
void NetworkContentSocketHandler::Recv_Packets()
{
Packet *p;
NetworkRecvStatus res;
while ((p = this->Recv_Packet(&res)) != NULL) {
bool cont = HandlePacket(p);
delete p;
if (!cont) return;
}
}
/**
* Create stub implementations for all receive commands that only
* show a warning that the given command is not available for the
* socket where the packet came from.
* @param type the packet type to create the stub for
*/
#define DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(type) \
bool NetworkContentSocketHandler::NetworkPacketReceive_## type ##_command(Packet *p) { \
DEBUG(net, 0, "[tcp/content] received illegal packet type %d from %s:%d", \
type, inet_ntoa(this->client_addr.sin_addr), ntohs(this->client_addr.sin_port)); \
return false; \
}
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_CLIENT_INFO_LIST);
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_CLIENT_INFO_ID);
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_CLIENT_INFO_EXTID);
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_CLIENT_INFO_EXTID_MD5);
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_SERVER_INFO);
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_CLIENT_CONTENT);
DEFINE_UNAVAILABLE_CONTENT_RECEIVE_COMMAND(PACKET_CONTENT_SERVER_CONTENT);
#endif /* ENABLE_NETWORK */
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