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PerfMon.dll: Updated to new API

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This commit is contained in:
Birunthan Mohanathas 2012-03-17 16:20:51 +02:00
parent f51f2aac24
commit 51cddb00f8
1 changed files with 66 additions and 147 deletions
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213
Plugins/PluginPerfMon/PerfData.cpp
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@ -17,179 +17,108 @@
*/ */
#include <windows.h> #include <windows.h>
#include "PerfData.h" #include <vector>
#include <string> #include "Titledb.h"
#include <map> #include "PerfSnap.h"
#include <crtdbg.h> #include "PerfObj.h"
#include "../../Library/Export.h" // Rainmeter's exported functions #include "PerfCntr.h"
#include "ObjList.h"
#include "ObjInst.h"
#include "../API/RainmeterAPI.h"
#include "../../Library/RawString.h"
#include "../../Library/DisableThreadLibraryCalls.h" // contains DllMain entry point #include "../../Library/DisableThreadLibraryCalls.h" // contains DllMain entry point
struct MeasureData
{
CRawString objectName;
CRawString counterName;
CRawString instanceName;
ULONGLONG oldValue;
bool difference;
bool firstTime;
};
ULONGLONG GetPerfData(PCTSTR ObjectName, PCTSTR InstanceName, PCTSTR CounterName); ULONGLONG GetPerfData(PCTSTR ObjectName, PCTSTR InstanceName, PCTSTR CounterName);
struct PerfMeasure PLUGIN_EXPORT void Initialize(void** data, void* rm)
{ {
std::wstring ObjectName; MeasureData* measure = new MeasureData;
std::wstring CounterName; *data = measure;
std::wstring InstanceName;
bool Difference;
ULONGLONG OldValue;
bool FirstTime;
};
static CPerfTitleDatabase g_CounterTitles( PERF_TITLE_COUNTER );
static std::map<UINT, PerfMeasure*> g_Measures;
/*
This function is called when the measure is initialized.
The function must return the maximum value that can be measured.
The return value can also be 0, which means that Rainmeter will
track the maximum value automatically. The parameters for this
function are:
instance The instance of this DLL
iniFile The name of the ini-file (usually Rainmeter.ini)
section The name of the section in the ini-file for this measure
id The identifier for the measure. This is used to identify the measures that use the same plugin.
*/
UINT Initialize(HMODULE instance, LPCTSTR iniFile, LPCTSTR section, UINT id)
{
PerfMeasure* measure = new PerfMeasure;
measure->Difference = false;
measure->FirstTime = true;
measure->OldValue = 0;
LPCTSTR buffer = ReadConfigString(section, L"PerfMonObject", L"");
if (buffer)
{
measure->ObjectName = buffer;
}
buffer = ReadConfigString(section, L"PerfMonCounter", L"");
if (buffer)
{
measure->CounterName = buffer;
}
buffer = ReadConfigString(section, L"PerfMonInstance", L"");
if (buffer)
{
measure->InstanceName = buffer;
}
buffer = ReadConfigString(section, L"PerfMonDifference", L"1");
if (buffer)
{
measure->Difference = 1==_wtoi(buffer);
}
// Store the measure
g_Measures[id] = measure;
int maxVal = 0;
buffer = ReadConfigString(section, L"PerfMonMaxValue", L"0");
if (buffer)
{
maxVal = _wtoi(buffer);
}
return maxVal;
} }
/* PLUGIN_EXPORT void Reload(void* data, void* rm, double* maxValue)
This function is called when new value should be measured.
The function returns the new value.
*/
double Update2(UINT id)
{ {
MeasureData* measure = (MeasureData*)data;
measure->objectName = RmReadString(rm, L"PerfMonObject", L"");
measure->counterName = RmReadString(rm, L"PerfMonCounter", L"");
measure->instanceName = RmReadString(rm, L"PerfMonInstance", L"");
measure->difference = RmReadInt(rm, L"PerfMonDifference", 1) == 1;
}
PLUGIN_EXPORT double Update(void* data)
{
MeasureData* measure = (MeasureData*)data;
double value = 0; double value = 0;
std::map<UINT, PerfMeasure*>::iterator i = g_Measures.find(id); ULONGLONG longValue = GetPerfData(
if (i != g_Measures.end()) measure->objectName.c_str(),
measure->instanceName.c_str(),
measure->counterName.c_str());
if (measure->difference)
{ {
PerfMeasure* measure = (*i).second; // Compare with the old value
if (!measure->firstTime)
if (measure)
{ {
ULONGLONG longvalue; value = (double)(longValue - measure->oldValue);
longvalue = GetPerfData(measure->ObjectName.c_str(),
measure->InstanceName.c_str(),
measure->CounterName.c_str());
if (measure->Difference)
{
// Compare with the old value
if (!measure->FirstTime)
{
value = (double)(longvalue - measure->OldValue);
}
measure->OldValue = longvalue;
measure->FirstTime = false;
}
else
{
value = (double)longvalue;
}
} }
measure->oldValue = longValue;
measure->firstTime = false;
}
else
{
value = (double)longValue;
} }
return value; return value;
} }
/* PLUGIN_EXPORT void Finalize(void* data)
If the measure needs to free resources before quitting.
The plugin can export Finalize function, which is called
when Rainmeter quits (or refreshes).
*/
void Finalize(HMODULE instance, UINT id)
{ {
// delete the measure MeasureData* measure = (MeasureData*)data;
std::map<UINT, PerfMeasure*>::iterator i = g_Measures.find(id); delete measure;
if (i != g_Measures.end())
{
delete (*i).second;
g_Measures.erase(i);
}
CPerfSnapshot::CleanUp(); CPerfSnapshot::CleanUp();
} }
/* ULONGLONG GetPerfData(LPCWSTR objectName, LPCWSTR instanceName, LPCWSTR counterName)
This method gets value of the given perfmon counter.
*/
ULONGLONG GetPerfData(PCTSTR ObjectName, PCTSTR InstanceName, PCTSTR CounterName)
{ {
CPerfObject* pPerfObj; static CPerfTitleDatabase s_CounterTitles(PERF_TITLE_COUNTER);
CPerfObjectInstance* pObjInst;
CPerfCounter* pPerfCntr;
BYTE data[256]; BYTE data[256];
WCHAR name[256]; WCHAR name[256];
ULONGLONG value = 0; ULONGLONG value = 0;
if (ObjectName == NULL || CounterName == NULL || wcslen(ObjectName) == 0 || wcslen(CounterName) == 0) CPerfSnapshot snapshot(&s_CounterTitles);
{ CPerfObjectList objList(&snapshot, &s_CounterTitles);
// Unable to continue
return 0;
}
CPerfSnapshot snapshot(&g_CounterTitles); if (snapshot.TakeSnapshot(objectName))
CPerfObjectList objList(&snapshot, &g_CounterTitles);
if (snapshot.TakeSnapshot(ObjectName))
{ {
pPerfObj = objList.GetPerfObject(ObjectName); CPerfObject* pPerfObj = objList.GetPerfObject(objectName);
if (pPerfObj) if (pPerfObj)
{ {
for (pObjInst = pPerfObj->GetFirstObjectInstance(); for (CPerfObjectInstance* pObjInst = pPerfObj->GetFirstObjectInstance();
pObjInst != NULL; pObjInst != NULL;
pObjInst = pPerfObj->GetNextObjectInstance()) pObjInst = pPerfObj->GetNextObjectInstance())
{ {
if (InstanceName != NULL && wcslen(InstanceName) > 0) if (*instanceName)
{ {
if (pObjInst->GetObjectInstanceName(name, 256)) if (pObjInst->GetObjectInstanceName(name, 256))
{ {
if (_wcsicmp(InstanceName, name) != 0) if (_wcsicmp(instanceName, name) != 0)
{ {
delete pObjInst; delete pObjInst;
continue; continue;
@ -202,7 +131,7 @@ ULONGLONG GetPerfData(PCTSTR ObjectName, PCTSTR InstanceName, PCTSTR CounterName
} }
} }
pPerfCntr = pObjInst->GetCounterByName(CounterName); CPerfCounter* pPerfCntr = pObjInst->GetCounterByName(counterName);
if (pPerfCntr != NULL) if (pPerfCntr != NULL)
{ {
pPerfCntr->GetData(data, 256, NULL); pPerfCntr->GetData(data, 256, NULL);
@ -228,23 +157,13 @@ ULONGLONG GetPerfData(PCTSTR ObjectName, PCTSTR InstanceName, PCTSTR CounterName
delete pObjInst; delete pObjInst;
break; // No need to continue break; // No need to continue
} }
delete pObjInst; delete pObjInst;
} }
delete pPerfObj; delete pPerfObj;
} }
} }
return value; return value;
} }
UINT GetPluginVersion()
{
return 1002;
}
LPCTSTR GetPluginAuthor()
{
return L"Rainy (rainy@iki.fi)";
}