http_winhttp.cpp File Reference

WinHTTP-based implementation for HTTP requests. More...

#include "../../stdafx.h"
#include "../../debug.h"
#include "../../rev.h"
#include "../network_internal.h"
#include "http.h"
#include "http_shared.h"
#include <mutex>
#include <winhttp.h>
#include "../../safeguards.h"

Go to the source code of this file.

Data Structures
class	NetworkHTTPRequest
	Single HTTP request. More...

Functions
static std::string	GetLastErrorAsString ()
	Gets the last error from Windows as a string.
static void	StaticWinHttpCallback (HINTERNET, DWORD_PTR context, DWORD code, void *info, DWORD length)
	Implementation of Microsoft's WINHTTP_STATUS_CALLBACK.
void	NetworkHTTPInitialize ()
	Initialize the HTTP socket handler.
void	NetworkHTTPUninitialize ()
	Uninitialize the HTTP socket handler.

Variables
static HINTERNET	_winhttp_session = nullptr
	Currently running download session.
static std::vector< NetworkHTTPRequest * >	_http_requests
	HTTP requests that are currently running.
static std::vector< NetworkHTTPRequest * >	_new_http_requests
	HTTP requests that should be started.
static std::mutex	_new_http_requests_mutex
	Mutex to prevent concurrent access _new_http_requests.
static std::vector< HTTPThreadSafeCallback * >	_http_callbacks
	Callback for the current requests.
static std::vector< HTTPThreadSafeCallback * >	_new_http_callbacks
	Callbacks for the request that should be started.
static std::mutex	_http_callback_mutex
	Mutex to prevent concurrent access to _http_callbacks.
static std::mutex	_new_http_callback_mutex
	Mutex to prevent concurrent access to _new_http_callbacks.

Detailed Description

WinHTTP-based implementation for HTTP requests.

Definition in file http_winhttp.cpp.

Function Documentation

GetLastErrorAsString()

std::string GetLastErrorAsString ( )

static

Gets the last error from Windows as a string.

Returns

The human readable form of the last error.

Definition at line 76 of file http_winhttp.cpp.

References FS2OTTD().

Referenced by NetworkHTTPRequest::Connect(), and NetworkHTTPRequest::WinHttpCallback().

NetworkHTTPInitialize()

void NetworkHTTPInitialize

(

)

Initialize the HTTP socket handler.

Definition at line 357 of file http_winhttp.cpp.

References _http_thread, _http_thread_exit, _winhttp_session, Debug, FileExists(), GetNetworkRevisionString(), HttpThread(), StartNewThread(), and StaticWinHttpCallback().

Referenced by NetworkStartUp().

NetworkHTTPUninitialize()

void NetworkHTTPUninitialize

(

)

Uninitialize the HTTP socket handler.

Definition at line 370 of file http_winhttp.cpp.

References _http_cv, _http_mutex, _http_thread, _http_thread_exit, _winhttp_session, NetworkHTTPSocketHandler::HTTPReceive(), and lock.

Referenced by NetworkShutDown().

StaticWinHttpCallback()

void StaticWinHttpCallback ( HINTERNET , DWORD_PTR context, DWORD code, void * info, DWORD length )

static

Implementation of Microsoft's WINHTTP_STATUS_CALLBACK.

Parameters

context	Pointer to our context, i.e. our request.
code	The code of the event.
info	The information about the event.
length	The length of the information.

Definition at line 207 of file http_winhttp.cpp.

References NetworkHTTPRequest::WinHttpCallback().

Referenced by NetworkHTTPInitialize().

Variable Documentation

_http_callback_mutex

std::mutex _http_callback_mutex

static

Mutex to prevent concurrent access to _http_callbacks.

Definition at line 53 of file http_winhttp.cpp.

Referenced by NetworkHTTPRequest::~NetworkHTTPRequest().

_http_callbacks

std::vector<HTTPThreadSafeCallback *> _http_callbacks

static

Callback for the current requests.

Definition at line 51 of file http_winhttp.cpp.

Referenced by NetworkHTTPRequest::~NetworkHTTPRequest().

_http_requests

std::vector<NetworkHTTPRequest *> _http_requests

static

HTTP requests that are currently running.

Definition at line 47 of file http_winhttp.cpp.

_new_http_callback_mutex

std::mutex _new_http_callback_mutex

static

Mutex to prevent concurrent access to _new_http_callbacks.

Definition at line 54 of file http_winhttp.cpp.

Referenced by NetworkHTTPRequest::NetworkHTTPRequest(), and NetworkHTTPRequest::NetworkHTTPRequest().

_new_http_callbacks

std::vector<HTTPThreadSafeCallback *> _new_http_callbacks

static

Callbacks for the request that should be started.

Definition at line 52 of file http_winhttp.cpp.

Referenced by NetworkHTTPRequest::NetworkHTTPRequest(), and NetworkHTTPRequest::NetworkHTTPRequest().

_new_http_requests

std::vector<NetworkHTTPRequest *> _new_http_requests

static

HTTP requests that should be started.

Definition at line 48 of file http_winhttp.cpp.

_new_http_requests_mutex

std::mutex _new_http_requests_mutex

static

Mutex to prevent concurrent access _new_http_requests.

Definition at line 49 of file http_winhttp.cpp.

_winhttp_session

HINTERNET _winhttp_session = nullptr

static

Currently running download session.

Definition at line 23 of file http_winhttp.cpp.

Referenced by NetworkHTTPRequest::Connect(), NetworkHTTPInitialize(), and NetworkHTTPUninitialize().