added profiler (windows only for now) and a benchmark script

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40920

core/msvc8/sourcemod_mm.vcproj

@@ -854,6 +854,10 @@
 				RelativePath="..\smn_player.cpp"
 				>
 			</File>
+			<File
+				RelativePath="..\smn_profiler.cpp"
+				>
+			</File>
 			<File
 				RelativePath="..\smn_sorting.cpp"
 				>

core/smn_profiler.cpp

@@ -0,0 +1,168 @@
+/**
+ * vim: set ts=4 :
+ * ===============================================================
+ * SourceMod (C)2004-2007 AlliedModders LLC.  All rights reserved.
+ * ===============================================================
+ *
+ * This file is not open source and may not be copied without explicit
+ * written permission of AlliedModders LLC.  This file may not be redistributed 
+ * in whole or significant part.
+ * For information, see LICENSE.txt or http://www.sourcemod.net/license.php
+ *
+ * Version: $Id$
+ */
+
+#include "sm_globals.h"
+#include "HandleSys.h"
+
+//Note: Do not add this to Linux yet, i haven't done the HPET timing research (if even available)
+//nonetheless we need accurate counting
+#if defined PLATFORM_LINUX
+#error "Not supported"
+#endif
+
+struct Profiler
+{
+	Profiler()
+	{
+		started = false;
+		stopped = false;
+	}
+#if defined PLATFORM_WINDOWS
+	LARGE_INTEGER start;
+	LARGE_INTEGER end;
+	double freq;
+#endif
+	bool started;
+	bool stopped;
+};
+
+HandleType_t g_ProfilerType = 0;
+
+class ProfilerHelpers : 
+	public SMGlobalClass,
+	public IHandleTypeDispatch
+{
+public:
+	void OnSourceModAllInitialized()
+	{
+		g_ProfilerType = g_HandleSys.CreateType("Profiler", this, 0, NULL, NULL, g_pCoreIdent, NULL);
+	}
+	void OnSourceModShutdown()
+	{
+		g_HandleSys.RemoveType(g_ProfilerType, g_pCoreIdent);
+	}
+	void OnHandleDestroy(HandleType_t type, void *object)
+	{
+		Profiler *prof = (Profiler *)object;
+		delete prof;
+	}
+} s_ProfHelpers;
+
+static cell_t CreateProfiler(IPluginContext *pContext, const cell_t *params)
+{
+	Profiler *p = new Profiler();
+
+#if defined PLATFORM_WINDOWS
+	LARGE_INTEGER qpf;
+	QueryPerformanceFrequency(&qpf);
+	p->freq = 1.0 / (double)(qpf.QuadPart);
+#endif
+
+	Handle_t hndl = g_HandleSys.CreateHandle(g_ProfilerType, p, pContext->GetIdentity(), g_pCoreIdent, NULL);
+	if (hndl == BAD_HANDLE)
+	{
+		delete p;
+	}
+
+	return hndl;
+}
+
+static cell_t StartProfiling(IPluginContext *pContext, const cell_t *params)
+{
+	Handle_t hndl = params[1];
+	HandleSecurity sec = HandleSecurity(pContext->GetIdentity(), g_pCoreIdent);
+	HandleError err;
+	Profiler *prof;
+
+	if ((err = g_HandleSys.ReadHandle(hndl, g_ProfilerType, &sec, (void **)&prof))
+		!= HandleError_None)
+	{
+		return pContext->ThrowNativeError("Invalid Handle %x (error %d)", hndl, err);
+	}
+
+#if defined PLATFORM_WINDOWS
+	QueryPerformanceCounter(&prof->start);
+#endif
+
+	prof->started = true;
+	prof->stopped = false;
+
+	return 1;
+}
+
+static cell_t StopProfiling(IPluginContext *pContext, const cell_t *params)
+{
+	Handle_t hndl = params[1];
+	HandleSecurity sec = HandleSecurity(pContext->GetIdentity(), g_pCoreIdent);
+	HandleError err;
+	Profiler *prof;
+
+	if ((err = g_HandleSys.ReadHandle(hndl, g_ProfilerType, &sec, (void **)&prof))
+		!= HandleError_None)
+	{
+		return pContext->ThrowNativeError("Invalid Handle %x (error %d)", hndl, err);
+	}
+
+	if (!prof->started)
+	{
+		return pContext->ThrowNativeError("Profiler was never started");
+	}
+
+#if defined PLATFORM_WINDOWS
+	QueryPerformanceCounter(&prof->end);
+#endif
+
+	prof->started = false;
+	prof->stopped = true;
+
+	return 1;
+}
+
+static cell_t GetProfilerTime(IPluginContext *pContext, const cell_t *params)
+{
+	Handle_t hndl = params[1];
+	HandleSecurity sec = HandleSecurity(pContext->GetIdentity(), g_pCoreIdent);
+	HandleError err;
+	Profiler *prof;
+
+	if ((err = g_HandleSys.ReadHandle(hndl, g_ProfilerType, &sec, (void **)&prof))
+		!= HandleError_None)
+	{
+		return pContext->ThrowNativeError("Invalid Handle %x (error %d)", hndl, err);
+	}
+
+	if (!prof->stopped)
+	{
+		return pContext->ThrowNativeError("Profiler was never stopped");
+	}
+
+	float fTime;
+
+#if defined PLATFORM_WINDOWS
+	LONGLONG diff = prof->end.QuadPart - prof->start.QuadPart;
+	double seconds = diff * prof->freq;
+	fTime = (float)seconds;
+#endif
+
+	return sp_ftoc(fTime);
+}
+
+REGISTER_NATIVES(profilerNatives)
+{
+	{"CreateProfiler",			CreateProfiler},
+	{"GetProfilerTime",			GetProfilerTime},
+	{"StartProfiling",			StartProfiling},
+	{"StopProfiling",			StopProfiling},
+	{NULL,						NULL},
+};