HTTP_TRACE_CONFIGURATION-Struktur
Enthält Ablaufverfolgungsinformationen für die Verwendung mit Ablaufverfolgungsanbietern und Consumern.
Syntax
struct HTTP_TRACE_CONFIGURATION{
LPCGUID pProviderGuid;
DWORD dwAreas;
DWORD dwVerbosity;
BOOL fProviderEnabled;
};
Members
| Membername | Beschreibung |
|---|---|
pProviderGuid |
Ein LPCGUID , der den eindeutigen Bezeichner für den Anbieter darstellt. |
dwAreas |
Eine DWORD , die eine Bitmaske enthält, die die zu verfolgenden spezifischen Bereiche definiert. Diese Liste der Bereiche ist privat, aber der Wert 0xffffe ermöglicht die Ablaufverfolgung für alle Bereiche. |
dwVerbosity |
Ein DWORD , der numerische Werte ihren ausführlichen Entsprechungen zuordnet (die Werte 0 bis 5 werden allgemein, FatalError, Error, Warning, Info und Ausführlich zugeordnet). |
fProviderEnabled |
true , wenn pProviderGuid mit einem gültigen aktuellen Wert initialisiert wird, falseandernfalls . |
Bemerkungen
Sie können die IHttpTraceContext::GetTraceConfiguration-Methode aufrufen, um einen HTTP_TRACE_CONFIGURATION Zeiger als IN/OUT-Parameter zu lesen oder zu schreiben, oder Sie können die IHttpTraceContext::SetTraceConfiguration-Methode aufrufen, um einen HTTP_TRACE_CONFIGURATION Zeiger nur als IN-Parameter zu lesen. Wenn ein Ablaufverfolgungsconsumer aufruft SetTraceConfiguration, stellt der HTTP_TRACE_CONFIGURATION Zeiger die spezifischen Bereiche bereit, die zu einer IHttpTraceContext-Schnittstelle nachverfolgt werden sollen.
Hinweis
Diese Liste der Bereiche ist privat, aber der Wert 0xffffe ermöglicht die Ablaufverfolgung für alle Bereiche.
Der HTTP_TRACE_CONFIGURATION Zeiger gibt auch Informationen zur Ablaufverfolgung aus einem GetTraceConfiguration Aufruf zurück.
Bevor Sie aufrufen SetTraceConfiguration, überprüfen Sie, ob der HTTP_TRACE_CONFIGURATION Zeiger und alle seine Member initialisiert sind. Bevor Sie aufrufen GetTraceConfiguration, stellen Sie sicher, dass der pProviderGuid Member mit einem gültigen aktuellen Wert initialisiert ist. Andernfalls wird der fProviderEnabled Member auf falsefestgelegt, und IHttpTraceContext die Implementierer geben sofort zurück.
Unter IIS-Ablaufverfolgungskonstanten finden Sie definierte GUID-Werte, die dem pProviderGuid Member zugewiesen werden können.
Achtung
Da Implementierer während eines Aufrufs GetTraceConfigurationvon nur den fProviderEnabled Member festlegen müssen, sollten Sie nach dem Methodenaufruf nur dann auf die verbleibenden Member zugreifen, wenn fProviderEnabled der Wert isttrue. Andernfalls bleiben diese verbleibenden Member unverändert und ungültig.
Hinweis
Sie sollten alle Felder mit bekannten Werten initialisieren, bevor Sie entweder die -Methode oder GetTraceConfiguration aufrufenSetTraceConfiguration, da sich die Implementierung ändern kann.
Beispiel
Im folgenden Codebeispiel wird veranschaulicht, wie ein globales GL_CACHE_OPERATION Modul erstellt wird, das auf Ereignisse lauscht und GL_CACHE_CLEANUP und dann die HTTP_TRACE_CONFIGURATION Informationen in die Ereignisanzeige schreibt.
Achtung
IIS 7 generiert eine große Anzahl von Ereignissen im Ereignisanzeige. Um einen Protokollüberlauffehler in einer Produktionsumgebung zu vermeiden, sollten Sie im Allgemeinen das Schreiben von Cacheinformationen in das Ereignisprotokoll vermeiden. Zu Demonstrationszwecken schreibt dieses Codebeispiel nur im Debugmodus einen Eintrag in die Ereignisanzeige.
#pragma warning( disable : 4290 )
#pragma warning( disable : 4530 )
#define _WINSOCKAPI_
#include <windows.h>
#include <sal.h>
#include <tchar.h>
#include <initguid.h>
#include <httptrace.h>
#include <httpserv.h>
#include <httpcach.h>
#include <string>
using namespace std;
#import "msxml6.dll"
using namespace MSXML2;
// The CConvert class mirrors the Convert class that is
// defined in the .NET Framework. It converts primitives
// and other data types to wstring types.
class CConvert
{
public:
// The ToString method converts a HANDLE to a wstring.
// h: the HANDLE to convert to a wstring.
// return: the HANDLE as a wstring.
static wstring ToString(HANDLE h)
{
// If the HANDLE is NULL, return the "NULL" string.
if (NULL == h)
{
return L"NULL";
}
// If the HANDLE is not valid, return
// the INVALID_HANDLE_VALUE as a string.
if (INVALID_HANDLE_VALUE == h)
{
return L"INVALID_HANDLE_VALUE";
}
// The HANDLE is valid.
return L"valid";
}
// The ToString method converts a FILETIME pointer to a wstring.
// fileTime: the FILETIME pointer to convert to a wstring.
// return: the FILETIME pointer as a wstring.
static wstring ToString(FILETIME* fileTime)
{
// If fileTime is NULL, return the empty string.
if (NULL == fileTime)
{
return L"NULL";
}
// Convert the FILETIME to a local time, and
// then convert that local time to a wstring.
SYSTEMTIME stUTC;
SYSTEMTIME stLocal;
FileTimeToSystemTime(fileTime, &stUTC);
SystemTimeToTzSpecificLocalTime(NULL, &stUTC, &stLocal);
// Create a wstring to return. Note: wsprintf
// can be also used. However, it is more difficult
// to handle both UNICODE and non-UNICODE correctly.
wstring timeString =
ToString(stLocal.wMonth) +
wstring(L"/") +
ToString(stLocal.wDay) +
wstring(L"/") +
ToString(stLocal.wYear) +
wstring(L" ") +
ToString(stLocal.wHour) +
wstring(L":") +
ToString(stLocal.wMinute);
// Return the FILETIME data as a wstring.
return timeString;
}
// The ToString method converts a
// ULARGE_INTEGER pointer to a wstring.
// ui: the ULARGE_INTEGER pointer to convert to a string.
// return: the ULARGE_INTEGER pointer as a string.
static wstring ToString(ULARGE_INTEGER* ui)
{
// Return the empty string if the
// ULARGE_INTEGER pointer is NULL.
if (NULL == ui)
{
return L"NULL";
}
// Return the low-order part to a wstring.
return (ToString(ui->LowPart));
}
// The ToString method converts a PCSTR to a wstring.
// pcstr: the PCSTR to convert to a wstring.
// return: the PCSTR as a wstring.
static wstring ToString(PCSTR pcstr)
{
// Return the empty string
// if the PCSTR is NULL.
if (NULL == pcstr)
{
return L"NULL";
}
// Get the length of the string to copy.
size_t length = strlen(pcstr);
// Create a new double-byte character
// array of length plus 1.
wchar_t* newText = new wchar_t[length+1];
// Copy the source into the sink string.
for (size_t i = 0; i < length; ++i)
{
newText[i] = pcstr[i];
}
// Terminate the string with the NULL character.
newText[length] = '\0';
// Get a wstring from the new double-byte string.
wstring wText = newText;
// Call delete on the newText pointer
// and set this pointer to NULL.
delete[] newText;
newText = NULL;
// Return the wstring copy.
return wText;
}
// The ToString method converts a long to a wstring.
// l: the long value to convert to a wstring.
// return: the long as a wstring.
static wstring ToString(long l)
{
WCHAR str[256];
str[0] = '\0';
_ltow_s(l, str, 256, 10);
return str;
}
// The ToString method converts a DWORD to a wstring.
// d: the DWORD value to convert to a wstring.
// return: the DWORD as a wstring.
static wstring ToString(DWORD d)
{
return ToString((long)d);
}
// The ToString method converts an LPCGUID to a wstring.
// guid: the LPCGUID value to convert to a wstring.
// return: The LPCGUID as a wstring; otherwise, L"" if
// guid is NULL.
static wstring ToString(LPCGUID guid)
{
// If the GUID is NULL, return the empty string.
if (NULL == guid)
{
return L"NULL";
}
// Create a WCHAR array to write the GUID to.
WCHAR guidString[256];
// Initialize the zero-based index of the
// guidString to the null-terminating character
// because the StringFromGUID2 may fail.
guidString[0] = '\0';
// Convert the GUID to a string of the form "{...}".
int characters = StringFromGUID2(*guid, guidString, 256);
// Return the guidString as a wstring.
return guidString;
}
// The ToString method converts a BOOL to a wstring.
// b: the BOOL value to convert to a wstring.
// return: L"true" for true; otherwise, L"false" for false.
static wstring ToString(BOOL b)
{
return (b) ? L"true" : L"false";
}
// The ToByteString converts a double-byte
// character string to a single-byte string.
// str: the double-byte string to convert.
// return: a single-byte string copied from str.
static string ToByteString(const wstring& str)
{
// Get the length of the
// double-byte string.
size_t length = str.length();
// Create a temporary char pointer.
char* byteChar = new char[length+1];
byteChar[0] = '\0';
// Copy the double-byte character string
// into the single-byte string.
size_t charsReturned = 0;
wcstombs_s(&charsReturned, byteChar,
length+1, str.c_str(), length+1);
// Create a string to return.
string retString = byteChar;
// Delete the temporary string and
// set that string to NULL.
delete[] byteChar;
byteChar = NULL;
// Return the single-byte string.
return retString;
}
// The ToString method converts a USHORT to a wstring.
// u: the USHORT value to convert to a wstring.
// return: the value of u as a wstring.
static wstring ToString(USHORT u)
{
return (ToString((long)u));
}
// The ToString method converts a
// const BYTE pointer to a wstring.
// bytes: the BYTE pointer to convert.
// return: the value of bytes as a wstring.
static wstring ToString(const BYTE* bytes)
{
return (ToString((PCSTR)bytes));
}
// The ToString method converts
// a PCWSTR to a wstring.
// pcwstr: the PCWSTR to convert.
// return: L"NULL" if the pcwstr
// parameter is NULL; otherwise,
// pcwstr converted to a wstring.
static wstring ToString(PCWSTR pcwstr)
{
// If the pcwstr parameter
// is NULL, return L"NULL".
if (NULL == pcwstr)
{
return L"NULL";
}
// Implicitly convert the
// PCWSTR to a wstring.
return pcwstr;
}
// The ToString method converts
// a character to a wstring.
// c: the character to convert.
// return: c as a wstring.
static wstring ToString(char c)
{
wstring str;
str += c;
return str;
}
// The ToString method converts
// a short to a wstring.
// s: the short to convert.
// return: s as a wstring.
static wstring ToString(short s)
{
return (ToString((long)s));
}
};
// The CEventWriter class writes XML
// documents and strings to the event log.
class CEventWriter
{
public:
// Creates the CEventWriter class.
// name: the name of the
// event log to open.
CEventWriter(const wstring& name)
{
#ifdef UNICODE
m_eventLog = RegisterEventSource(NULL, name.c_str());
#else
string multiName = CConvert::ToByteString(name);
m_eventLog = RegisterEventSource(NULL, multiName.c_str());
#endif
}
// Creates the destructor for the
// CEventWriter class. This destructor
// closes the HANDLE to the event
// log if that HANDLE is open.
virtual ~CEventWriter()
{
// If the HANDLE to the event
// log is open, close it.
if (NULL != m_eventLog)
{
// Deregister the event log HANDLE.
DeregisterEventSource(m_eventLog);
// Set the HANDLE to NULL.
m_eventLog = NULL;
}
}
// The ReportInfo method writes the content
// of the XML document to the event log.
// doc: the XML document to write.
// return: true if the event log is written.
BOOL ReportInfo(MSXML2::IXMLDOMDocument3Ptr doc)
{
MSXML2::IXMLDOMElementPtr documentElement =
doc->documentElement;
// Get the XML as a BSTR and place this XML into a
// _bstr_t wrapper. The client of the XML document
// is responsible for deleting the returned BSTR from
// the property, which the _bstr_t wrapper will do
// automatically.
_bstr_t bstrXml = documentElement->xml;
// Convert the _bstr_t to a wstring.
wstring xmlString = bstrXml;
// Write the XML to the event writer.
return ReportInfo(xmlString);
}
// The ReportInfo method writes
// a wstring to the event log.
// info: the wstring to write.
// return: true if the event log is written.
BOOL ReportInfo(const wstring& info)
{
return ReportEvent(EVENTLOG_INFORMATION_TYPE, info);
}
// The ReportError method writes
// a wstring to the event log.
// error: the wstring to write.
// return: true if the event log is written.
BOOL ReportError(const wstring& error)
{
return ReportEvent(EVENTLOG_ERROR_TYPE, error);
}
protected:
// The ReportEvent method accepts an event type
// and a wstring, and attempts to write that
// event to the event log.
// type: the type of the event.
// data: the wstring to write to the event log.
// return: true if the event log is written;
// otherwise, false.
BOOL ReportEvent(WORD type, const wstring& data)
{
// If the m_eventLog HANDLE
// is NULL, return false.
if (NULL == m_eventLog)
{
return FALSE;
}
#ifndef _DEBUG
// If the current build is not debug,
// return so the event log is not written.
return TRUE;
#endif
#ifdef UNICODE
// The unicode version of the ReportEvent
// method requires double-byte strings.
PCWSTR arr[1];
arr[0] = data.c_str();
return ::ReportEvent(m_eventLog,
type,
0, 0, NULL, 1,
0, arr, (void*)arr);
#else
// The non-unicode version of the ReportEvent
// method requires single-byte strings.
string multiByte =
CConvert::ToByteString(data);
LPCSTR arr[1];
arr[0] = multiByte.c_str();
return ::ReportEvent(m_eventLog,
type,
0, 0, NULL, 1,
0, arr, (void*)arr);
#endif
}
private:
// Specify the HANDLE to the
// event log for writing.
HANDLE m_eventLog;
};
// The CGlobalCacheModule class creates the CGlobalModule
// class and registers for GL_CACHE_OPERATION and
// GL_CACHE_CLEANUP events.
class CGlobalCacheModule : public CGlobalModule
{
public:
// Creates the destructor for the
// CGlobalCacheModule class.
virtual ~CGlobalCacheModule()
{
}
// The RegisterGlobalModule method creates and registers
// a new CGlobalCacheModule for GL_CACHE_OPERATION and
// GL_CACHE_CLEANUP events.
// dwServerVersion: the current server version.
// pModuleInfo: the current IHttpModuleRegistrationInfo pointer.
// pGlobalInfo: the current IHttpServer pointer.
// return: ERROR_NOT_ENOUGH_MEMORY if the heap is out of
// memory; otherwise, the value from the call to the
// SetGlobalNotifications method on the pModuleInfo pointer.
static HRESULT RegisterGlobalModule
(
DWORD dwServerVersion,
IHttpModuleRegistrationInfo* pModuleInfo,
IHttpServer* pGlobalInfo
)
{
// The pGlobalInfo parmeter must be non-NULL because
// the constructor for the CGlobalCacheModule class
// requires a non-NULL pointer to a valid IHttpServer
// pointer.
if (NULL == pGlobalInfo)
{
return E_INVALIDARG;
}
// Create a new CGlobalCacheModule pointer.
CGlobalCacheModule* traceModule =
new CGlobalCacheModule();
// Return an out-of-memory error if the traceModule
// is NULL after the call to the new operator.
if (NULL == traceModule)
{
return HRESULT_FROM_WIN32(ERROR_NOT_ENOUGH_MEMORY);
}
// Attempt to set global notification for both
// GL_CACHE_OPERATION and GL_CACHE_CLEANUP events
// by using the traceModule as a listener.
HRESULT hr = pModuleInfo->SetGlobalNotifications
(traceModule, GL_CACHE_OPERATION | GL_CACHE_CLEANUP);
// If the SetGlobalNotifications method
// fails, return the HRESULT.
if (FAILED(hr))
{
return hr;
}
// Set the priority to PRIORITY_ALIAS_FIRST,
// which will populate the data as much as possible.
hr = pModuleInfo->SetPriorityForGlobalNotification(
GL_CACHE_OPERATION, PRIORITY_ALIAS_FIRST);
// Return the HRESULT from the call to
// the SetGlobalNotifications method.
return hr;
}
// The OnGlobalCacheOperation method is called
// when GL_CACHE_OPERATION operations occur.
// pProvider: the current ICacheProvider pointer.
// return: GL_NOTIFICATION_CONTINUE.
virtual GLOBAL_NOTIFICATION_STATUS OnGlobalCacheOperation
(
IN ICacheProvider* pProvider
)
{
// The OnGlobalCacheOperation must return if the
// pProvider parameter is NULL because this pointer
// is needed for data to write to the event log.
if (NULL == pProvider)
{
return GL_NOTIFICATION_CONTINUE;
}
// The following code uses COM smart pointers. Wrap
// the code in one try/catch statement for _com_error
// exceptions. Note: it is not necessary to call
// CoInitialize and CoUninitialize on this thread
// because IIS does this automatically.
try
{
// Create an XML document in memory.
MSXML2::IXMLDOMDocument3Ptr doc(__uuidof(MSXML2::DOMDocument60));
// Create a cacheProvider root element and
// append this root element to the XML document.
MSXML2::IXMLDOMElementPtr cacheProviderElement =
doc->createElement(L"cacheProvider");
doc->appendChild(cacheProviderElement);
// Get the IHttpTraceContext pointer
// from the ICacheProvider pointer.
IHttpTraceContext* traceContext =
pProvider->GetTraceContext();
// Create an element for the IHttpTraceContext
// pointer and add that element to the
// cacheProviderElement.
MSXML2::IXMLDOMElementPtr traceElement =
CreateElement(traceContext, doc);
cacheProviderElement->appendChild(traceElement);
// Write the XML using the writer.
m_eventWriter.ReportInfo(doc);
}
// Catch any _com_error that occurs while you are
// writing to the XML document in memory.
catch (_com_error& ce)
{
// Get the description for the error.
wstring description = ce.Description();
// Write the error to the event writer.
m_eventWriter.ReportError(description);
}
// Return GL_NOTIFICATION_CONTINUE so that
// other listeners will receive the event.
return GL_NOTIFICATION_CONTINUE;
}
// The OnGlobalCacheCleanup method is called when
// GL_CACHE_CLEANUP events occur.
// return: GL_NOTIFICATION_CONTINUE.
virtual GLOBAL_NOTIFICATION_STATUS OnGlobalCacheCleanup(VOID)
{
// Return GL_NOTIFICATION_CONTINUE so that
// other listeners will receive this event.
return GL_NOTIFICATION_CONTINUE;
}
// PRE: none.
// POST: the Terminate method calls delete on this,
// which releases the memory for the current
// CGlobalCacheModule pointer on the heap.
virtual VOID Terminate(VOID)
{
delete this;
}
protected:
// Creates the constructor for
// the CGlobalCacheModule class.
CGlobalCacheModule() : m_eventWriter(L"IISADMIN")
{
}
// The AddAttribute creates a new attribute using
// the doc value, sets the new attribute's name and
// text, adds the new attribute to the element value
// and, finally, returns the attribute.
// PRE: neither the element nor the doc
// parameters are NULL.
// name: the name of the attribute.
// text: the text of the attribute.
// element: the element to add the new attribute to.
// doc: the XML document for creating a new attribute.
// return: the new IXMLDOMAttributePtr
// that is added to the element.
// throws: a _com_error exception.
static MSXML2::IXMLDOMAttributePtr AddAttribute
(
const wstring& name,
const wstring& text,
MSXML2::IXMLDOMElementPtr element,
MSXML2::IXMLDOMDocument3Ptr doc
) throw (_com_error)
{
// Create an attribute with the name.
MSXML2::IXMLDOMAttributePtr attribute =
doc->createAttribute(name.c_str());
// Set the text of the attribute to the text value.
attribute->text = text.c_str();
// Add the attribute to the passed element.
element->setAttributeNode(attribute);
// Return the new attribute to the caller.
return attribute;
}
// The CreateElement method converts an HTTP_TRACE_CONFIGURATION
// pointer and its data into an XML element.
// PRE: the doc parameter must not be NULL.
// traceConfiguration: the HTTP_TRACE_CONFIGURATION
// pointer to convert to an XML element.
// hr: the HRESULT returned from retrieving
// the HTTP_TRACE_CONFIGURATION data.
// doc: the MSXML2::IXMLDOMDocument3Ptr to
// use for creating a new element.
// return: a new MSXML2::IXMLDOMElementPtr.
// throws: a _com_error exception.
static MSXML2::IXMLDOMElementPtr CreateElement
(
HTTP_TRACE_CONFIGURATION* traceConfiguration,
HRESULT hr,
MSXML2::IXMLDOMDocument3Ptr doc
) throw (_com_error)
{
// Create a default cacheSpecificData element to return.
MSXML2::IXMLDOMElementPtr traceConfigurationElement =
doc->createElement(L"traceConfiguration");
// If the HTTP_TRACE_CONFIGURATION data is
// NULL or the HRESULT from getting the data
// is not S_OK, return the new empty element.
if ((NULL == traceConfiguration) ||
(FAILED(hr)))
{
return traceConfigurationElement;
}
// Get provider GUID information from
// the HTTP_TRACE_CONFIGURATION pointer.
LPCGUID providerGuidLPCGUID =
traceConfiguration->pProviderGuid;
// Convert the GUID to a wstring.
wstring providerGuid =
CConvert::ToString(providerGuidLPCGUID);
// Add a providerGuid attribute to
// the traceConfigurationElement.
AddAttribute(L"providerGuid", providerGuid,
traceConfigurationElement, doc);
// Get dwAreas information from
// the HTTP_TRACE_CONFIGURATION pointer.
DWORD areasDWORD =
traceConfiguration->dwAreas;
// Convert the DWORD to a wstring.
wstring areas = CConvert::ToString(areasDWORD);
// Add an areas attribute to
// the traceConfigurationElement.
AddAttribute(L"areas", areas,
traceConfigurationElement, doc);
// Get verbosity information from
// the HTTP_TRACE_CONFIGURATION pointer.
DWORD verbosityDWORD =
traceConfiguration->dwVerbosity;
// Convert the DWORD to a wstring.
wstring verbosity =
CConvert::ToString(verbosityDWORD);
// Add a verbosity attribute to
// the traceConfigurationElement.
AddAttribute(L"verbosity", verbosity,
traceConfigurationElement, doc);
// Get enabled information from the
// HTTP_TRACE_CONFIGURATION pointer.
BOOL providerEnabledBOOL =
traceConfiguration->fProviderEnabled;
// Convert the Boolean to a wstring.
wstring providerEnabled =
CConvert::ToString(providerEnabledBOOL);
// Add an attribute to the traceConfigurationElement
// for provider-enabled information.
AddAttribute(L"providerEnabled", providerEnabled,
traceConfigurationElement, doc);
// Return the traceConfigurationElement to the caller.
return traceConfigurationElement;
}
// The CreateElement method converts an IHttpTraceContext
// pointer and its descendant data into an XML element.
// PRE: the doc parameter must not be NULL.
// traceContext: the IHttpTraceContext
// pointer to convert to an XML element.
// doc: the MSXML2::IXMLDOMDocument3Ptr to
// use for creating a new element.
// return: a new MSXML2::IXMLDOMElementPtr.
// throws: a _com_error exception.
static MSXML2::IXMLDOMElementPtr CreateElement
(
IHttpTraceContext* traceContext,
MSXML2::IXMLDOMDocument3Ptr doc
) throw (_com_error)
{
// Create a default cacheSpecificData element.
MSXML2::IXMLDOMElementPtr traceContextElement =
doc->createElement(L"traceContext");
// Return the traceContext element if the IHttpTraceContext
// pointer data is NULL.
if (NULL == traceContext)
{
return traceContextElement;
}
// Get trace configuration information
// from the IHttpTraceContext pointer.
HTTP_TRACE_CONFIGURATION traceConfig;
traceConfig.dwAreas = 0;
traceConfig.dwVerbosity = 0;
traceConfig.fProviderEnabled = FALSE;
traceConfig.pProviderGuid = NULL;
HRESULT hr =
traceContext->GetTraceConfiguration(&traceConfig);
// Create a trace configuration element
// and append it to the traceContextElement.
MSXML2::IXMLDOMElementPtr traceConfigElement =
CreateElement(&traceConfig, hr, doc);
traceContextElement->appendChild(traceConfigElement);
// Return the traceContextElement.
return traceContextElement;
}
private:
// Specify the event writer.
CEventWriter m_eventWriter;
};
// The RegisterModule method is the
// main entry point for the DLL.
// dwServerVersion: the current server version.
// pModuleInfo: the current
// IHttpModuleRegistrationInfo pointer.
// pGlobalInfo: the current IHttpServer pointer.
// return: the value returned by calling the
// CGlobalCacheModule::RegisterGlobalModule
// method.
HRESULT
__stdcall
RegisterModule(
DWORD dwServerVersion,
IHttpModuleRegistrationInfo* pModuleInfo,
IHttpServer* pGlobalInfo
)
{
// Call the static method for initialization.
return CGlobalCacheModule::RegisterGlobalModule
(dwServerVersion,
pModuleInfo,
pGlobalInfo);
}
Mit dem obigen Code wird ein neues Ereignis in die Ereignisanzeige geschrieben, wobei das Datenfeld XML ähnlich dem folgenden enthält.
<cacheProvider>
<traceContext>
<traceConfiguration
providerGuid="{00000000-0000-0000-1B00-0080000000FF}"
areas="0"
verbosity="0"
providerEnabled="true"/>
</traceContext>
</cacheProvider>
Weitere Informationen zum Erstellen und Bereitstellen eines nativen DLL-Moduls finden Sie unter Exemplarische Vorgehensweise: Erstellen eines Request-Level HTTP-Moduls mithilfe von nativem Code.
Sie können den Code optional kompilieren, indem Sie die stdcall (/Gz) Aufrufkonvention verwenden, anstatt die Aufrufkonvention für jede Funktion explizit zu deklarieren.
Anforderungen
| type | BESCHREIBUNG |
|---|---|
| Client | – IIS 7.0 unter Windows Vista – IIS 7.5 unter Windows 7 – IIS 8.0 unter Windows 8 – IIS 10.0 unter Windows 10 |
| Server | – IIS 7.0 unter Windows Server 2008 – IIS 7.5 unter Windows Server 2008 R2 – IIS 8.0 unter Windows Server 2012 – IIS 8.5 unter Windows Server 2012 R2 – IIS 10.0 unter Windows Server 2016 |
| Produkt | – IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0 - IIS Express 7.5, IIS Express 8.0, IIS Express 10.0 |
| Header | Httptrace.h |