network_content.cpp File Reference

Content sending/receiving part of the network protocol. More...

#include "../stdafx.h"
#include "../rev.h"
#include "../ai/ai.hpp"
#include "../game/game.hpp"
#include "../window_func.h"
#include "../error.h"
#include "../fileio_func.h"
#include "../base_media_base.h"
#include "../settings_type.h"
#include "network_content.h"
#include "table/strings.h"
#include <zlib.h>
#include "../safeguards.h"

Go to the source code of this file.

Data Structures
class	NetworkContentConnecter
	Connect to the content server. More...

Macros
#define	check_not_null(p)   { if ((p) == nullptr) { this->OnFailure(); return; } }
#define	check_and_terminate(p)   { check_not_null(p); *(p) = '\0'; }

Typedefs
typedef bool(*	HasProc) (const ContentInfo *ci, bool md5sum)
	Check whether a function piece of content is locally known. More...

Functions
bool	HasScenario (const ContentInfo *ci, bool md5sum)
	Check whether we've got a given scenario based on its unique ID. More...
static bool	HasGRFConfig (const ContentInfo *ci, bool md5sum)
	Wrapper function for the HasProc.
static std::string	GetFullFilename (const ContentInfo *ci, bool compressed)
	Determine the full filename of a piece of content information. More...
static bool	GunzipFile (const ContentInfo *ci)
	Gunzip a given file and remove the .gz if successful. More...
static ssize_t	TransferOutFWrite (std::optional< FileHandle > &file, const char *buffer, size_t amount)
	Simple wrapper around fwrite to be able to pass it to Packet's TransferOut. More...

Variables
ClientNetworkContentSocketHandler	_network_content_client
	The client we use to connect to the server.

Detailed Description

Content sending/receiving part of the network protocol.

Definition in file network_content.cpp.

Typedef Documentation

HasProc

typedef bool(* HasProc) (const ContentInfo *ci, bool md5sum)

Check whether a function piece of content is locally known.

Matches on the unique ID and possibly the MD5 checksum.

Parameters

ci	the content info to search for
md5sum	also match the MD5 checksum?

Returns

true iff it's known

Definition at line 51 of file network_content.cpp.

Function Documentation

GetFullFilename()

static std::string GetFullFilename ( const ContentInfo *  ci, bool  compressed  )

static

Determine the full filename of a piece of content information.

Parameters

ci	the information to get the filename from
compressed	should the filename end with .gz?

Returns

a statically allocated buffer with the filename or nullptr when no filename could be made.

Definition at line 384 of file network_content.cpp.

References GetContentInfoSubDir(), NO_DIRECTORY, and ContentInfo::type.

Referenced by ClientNetworkContentSocketHandler::AfterDownload(), ClientNetworkContentSocketHandler::BeforeDownload(), and GunzipFile().

GunzipFile()

static bool GunzipFile ( const ContentInfo *  ci )

static

Gunzip a given file and remove the .gz if successful.

Parameters

ci	container with filename

Returns

true if the gunzip completed

Definition at line 401 of file network_content.cpp.

References GetFullFilename(), and FileHandle::Open().

Referenced by ClientNetworkContentSocketHandler::AfterDownload().

HasScenario()

bool HasScenario	(	const ContentInfo *	ci,
		bool	md5sum
	)

Check whether we've got a given scenario based on its unique ID.

Parameters

ci	The content info to compare it to.
md5sum	Whether to look at the md5sum or the id.

Returns

True iff we've got the scenario.

Definition at line 710 of file fios.cpp.

References FindScenario().

Referenced by ClientNetworkContentSocketHandler::Receive_SERVER_INFO().

TransferOutFWrite()

static ssize_t TransferOutFWrite ( std::optional< FileHandle > &  file, const char *  buffer, size_t  amount  )

inlinestatic

Simple wrapper around fwrite to be able to pass it to Packet's TransferOut.

Parameters

file	The file to write data to.
buffer	The buffer to write to the file.
amount	The number of bytes to write.

Returns

The number of bytes that were written.

Definition at line 470 of file network_content.cpp.

Referenced by ClientNetworkContentSocketHandler::Receive_SERVER_CONTENT().