/**

  * vim: set ts=4 :

  * =============================================================================

  * SourceMod

  * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

  * =============================================================================

  *

  * This program is free software; you can redistribute it and/or modify it under

  * the terms of the GNU General Public License, version 3.0, as published by the

  * Free Software Foundation.

  * 

  * This program is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more

  * details.

  *

  * You should have received a copy of the GNU General Public License along with

  * this program.  If not, see <http://www.gnu.org/licenses/>.

  *

  * As a special exception, AlliedModders LLC gives you permission to link the

  * code of this program (as well as its derivative works) to "Half-Life 2," the

  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

  * by the Valve Corporation.  You must obey the GNU General Public License in

  * all respects for all other code used.  Additionally, AlliedModders LLC grants

  * this exception to all derivative works.  AlliedModders LLC defines further

  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

  * or <http://www.sourcemod.net/license.php>.

  *

  * Version: $Id$

  */

 #ifndef _INCLUDE_SOURCEMOD_PLUGIN_PROFILER_H_

 #define _INCLUDE_SOURCEMOD_PLUGIN_PROFILER_H_

 #include <sp_vm_api.h>

 #include <sm_platform.h>

 #include <sm_trie_tpl.h>

 #include <sh_vector.h>

 #include <sh_stack.h>

 #include <stdio.h>

 #include "sm_globals.h"

 #include "sm_srvcmds.h"

 using namespace SourcePawn;

 using namespace SourceHook;

 struct prof_point_t

 {

 #if defined PLATFORM_WINDOWS

 	LARGE_INTEGER value;

 #elif defined PLATFORM_POSIX

 	struct timeval value;

 #endif

 	bool is_set;

 };

 struct prof_atom_t

 {

 	int atom_type;			/* Type of object we're profiling */

 	int atom_serial;		/* Serial number, if appropriate */

 	sp_context_t *ctx;		/* Plugin context. */

 	const char *name;		/* Name of the function */

 	prof_point_t start;		/* Start time */

 	prof_point_t end;		/* End time */

 	double base_time;		/* Known time from children or pausing. */

 };

 struct prof_atom_report_t

 {

 	char atom_name[256];	/* Full name to shove to logs */

 	double total_time;		/* Total time spent executing, in s */

 	unsigned int num_calls;	/* Number of invocations */

 	double min_time;		/* Min time spent in one call, in s */

 	double max_time;		/* Max time spent in one call, in s */

 };

 class ProfileReport

 {

 public:

 	~ProfileReport();

 public:

 	void SaveAtom(const prof_atom_t &atom);

 	size_t GetNumReports();

 	prof_atom_report_t *GetReport(size_t i);

 	void Clear();

 private:

 	KTrie<prof_atom_report_t *> m_ReportLookup;

 	CVector<prof_atom_report_t *> m_Reports;

 };

 class ProfileEngine :

 	public SMGlobalClass,

 	public IRootConsoleCommand,

 	public IProfiler

 {

 public:

 	ProfileEngine();

 public:

 	bool IsEnabled();

 	bool GenerateReport(FILE *fp);

 	void Clear();

 public: //SMGlobalClass

 	void OnSourceModAllInitialized();

 	void OnSourceModShutdown();

 public: //IRootConsoleCommand

 	void OnRootConsoleCommand(const char *cmdname, const CCommand &command);

 public: //IProfiler

 	void OnNativeBegin(IPluginContext *pContext, sp_native_t *native);

 	void OnNativeEnd() ;

 	void OnFunctionBegin(IPluginContext *pContext, const char *name);

 	void OnFunctionEnd();

 	int OnCallbackBegin(IPluginContext *pContext, sp_public_t *pubfunc);

 	void OnCallbackEnd(int serial);

 private:

 	void PushProfileStack(IPluginContext *ctx, int type, const char *name);

 	void PopProfileStack(ProfileReport *reporter);

 	void PauseParent();

 	void ResumeParent(double addTime);

 	void WriteReport(FILE *fp, ProfileReport *report, const char *name);

 private:

 	CStack<prof_atom_t> m_AtomStack;

 	ProfileReport m_Callbacks;

 	ProfileReport m_Functions;

 	ProfileReport m_Natives;

 	int m_serial;

 	prof_point_t m_ProfStart;

 };

 extern ProfileEngine g_Profiler;

 #endif //_INCLUDE_SOURCEMOD_PLUGIN_PROFILER_H_