#include <jsdbgapi.h>
import "OOJSEngineTimeManagement.h"
import "OOProfilingStopwatch.h"
import "OOJSScript.h"
import "OOCollectionExtractors.h"
import "OOLoggingExtended.h"
#include <unistd.h>

Include dependency graph for OOJSEngineTimeManagement.m:

Macros
#define	OOJS_DEBUG_LIMITER 0

#define	OOJS_TIME_LIMIT (1)

Functions
void	OOJSStartTimeLimiterWithTimeLimit_ (OOTimeDelta limit, const char *file, unsigned line)

void	OOJSStopTimeLimiter_ (const char *file, unsigned line)

void	OOJSPauseTimeLimiter (void)

void	OOJSResumeTimeLimiter (void)

OOHighResTimeValue	OOJSCopyTimeLimiterNominalStartTime (void)

void	OOJSResetTimeLimiter (void)

OOTimeDelta	OOJSGetTimeLimiterLimit (void)

void	OOJSSetTimeLimiterLimit (OOTimeDelta limit)

static JSBool	OperationCallback (JSContext *context)

static JSBool	ContextCallback (JSContext *context, uintN contextOp)

void	OOJSTimeManagementInit (OOJavaScriptEngine engine, JSRuntime runtime)

Variables
static unsigned	sLimiterStartDepth

static int	sLimiterPauseDepth

static OOHighResTimeValue	sLimiterStart

static OOHighResTimeValue	sLimiterPauseStart

static double	sLimiterTimeLimit

static BOOL	sStop

static const char *	sLastStartedFile

static unsigned	sLastStartedLine

static const char *	sLastStoppedFile

static unsigned	sLastStoppedLine

Macro Definition Documentation

◆ OOJS_DEBUG_LIMITER

#define OOJS_DEBUG_LIMITER 0

Definition at line 49 of file OOJSEngineTimeManagement.m.

◆ OOJS_TIME_LIMIT

#define OOJS_TIME_LIMIT (1)

Definition at line 63 of file OOJSEngineTimeManagement.m.

Referenced by OOJSStartTimeLimiterWithTimeLimit_().

Function Documentation

◆ ContextCallback()

static JSBool ContextCallback	(	JSContext *	context,
		uintN	contextOp )

static

Definition at line 240 of file OOJSEngineTimeManagement.m.

{
    if (contextOp == JSCONTEXT_NEW)
    {
        JS_SetOperationCallback(context, OperationCallback);
        
#if OOJS_PROFILE && defined(MOZ_TRACE_JSCALLS)
        JS_SetFunctionCallback(context, (JSFunctionCallback)FunctionCallback);  // Naughtily casts away consts, because const JSContexts and JSFunctions are useless.
#endif
    }
    return YES;
}

References OperationCallback().

Referenced by OOJavaScriptEngine(WatchdogTimer)::watchdogTimerThread.

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◆ OOJSCopyTimeLimiterNominalStartTime()

OOHighResTimeValue OOJSCopyTimeLimiterNominalStartTime ( void )

Definition at line 158 of file OOJSEngineTimeManagement.m.

{
    return sLimiterStart;
}

References sLimiterStart.

◆ OOJSGetTimeLimiterLimit()

OOTimeDelta OOJSGetTimeLimiterLimit ( void )

Definition at line 173 of file OOJSEngineTimeManagement.m.

{
    return sLimiterTimeLimit;
}

References sLimiterTimeLimit.

◆ OOJSPauseTimeLimiter()

void OOJSPauseTimeLimiter ( void )

Definition at line 133 of file OOJSEngineTimeManagement.m.

{
    if (sLimiterPauseDepth++ == 0)
    {
        OODisposeHighResTime(sLimiterPauseStart);
        sLimiterPauseStart = OOGetHighResTime();
    }
}

References OODisposeHighResTime, OOGetHighResTime, sLimiterPauseDepth, and sLimiterPauseStart.

Referenced by NSString(OOJavaScriptExtensions)::concatenationOfStringsFromJavaScriptValues:count:separator:inContext:, ConsoleConsoleMessage(), ConsoleIsExecutableJavaScript(), ConsoleSettingsSetProperty(), OOPlanetEntity(OOJavaScriptExtensions)::getJSClass:andPrototype:, JSFunctionPredicate(), MissionRunScreen(), ReportJSError(), SoundFromJSValue(), SystemFilteredEntities(), and SystemInfoStaticFilteredSystems().

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◆ OOJSResetTimeLimiter()

void OOJSResetTimeLimiter ( void )

Definition at line 164 of file OOJSEngineTimeManagement.m.

{
    OODisposeHighResTime(sLimiterStart);
    sLimiterStart = OOGetHighResTime();
    
    sStop = NO;
}

References OODisposeHighResTime, OOGetHighResTime, sLimiterStart, and sStop.

◆ OOJSResumeTimeLimiter()

void OOJSResumeTimeLimiter ( void )

Definition at line 143 of file OOJSEngineTimeManagement.m.

{
    if (--sLimiterPauseDepth == 0)
        
    {
        OOHighResTimeValue now = OOGetHighResTime();
        OOTimeDelta elapsed = OOHighResTimeDeltaInSeconds(sLimiterPauseStart, now);
        OODisposeHighResTime(now);
        
        sLimiterTimeLimit += elapsed;
    }
}

References OODisposeHighResTime, OOGetHighResTime, OOHighResTimeDeltaInSeconds(), sLimiterPauseDepth, sLimiterPauseStart, and sLimiterTimeLimit.

Referenced by NSString(OOJavaScriptExtensions)::concatenationOfStringsFromJavaScriptValues:count:separator:inContext:, ConsoleConsoleMessage(), ConsoleIsExecutableJavaScript(), ConsoleSettingsSetProperty(), OOPlanetEntity(OOJavaScriptExtensions)::getJSClass:andPrototype:, JSFunctionPredicate(), MissionRunScreen(), ReportJSError(), SoundFromJSValue(), SystemFilteredEntities(), and SystemInfoStaticFilteredSystems().

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◆ OOJSSetTimeLimiterLimit()

void OOJSSetTimeLimiterLimit ( OOTimeDelta limit )

Definition at line 179 of file OOJSEngineTimeManagement.m.

{
    sLimiterTimeLimit = limit;
}

References sLimiterTimeLimit.

◆ OOJSStartTimeLimiterWithTimeLimit_()

void OOJSStartTimeLimiterWithTimeLimit_	(	OOTimeDelta	limit,
		const char *	file,
		unsigned	line )

Definition at line 82 of file OOJSEngineTimeManagement.m.

{
#if OOJS_DEBUG_LIMITER
    OOLog(@"script.javaScript.timeLimit.debug",@"Limiter starting: %u => %u",sLimiterStartDepth,sLimiterStartDepth+1);
#endif
    if (sLimiterStartDepth++ == 0)
    {
        if (limit <= 0.0)  limit = OOJS_TIME_LIMIT;
        sLimiterTimeLimit = limit;
        sLimiterPauseDepth = 0;
        
        OODisposeHighResTime(sLimiterStart);
        sLimiterStart = OOGetHighResTime();
    }
    
#ifndef NDEBUG
    sLastStartedFile = file;
    sLastStartedLine = line;
#endif
}

References OODisposeHighResTime, OOGetHighResTime, OOJS_TIME_LIMIT, OOLog, sLastStartedFile, sLastStartedLine, sLimiterPauseDepth, sLimiterStart, sLimiterStartDepth, and sLimiterTimeLimit.

◆ OOJSStopTimeLimiter_()

void OOJSStopTimeLimiter_	(	const char *	file,
		unsigned	line )

Definition at line 108 of file OOJSEngineTimeManagement.m.

{
#ifndef NDEBUG
    if (sLimiterStartDepth == 0)
    {
        OOLog(@"bug.javaScript.limiterDepth", @"Attempt to stop JavaScript time limiter while it is already fully stopped. This is an internal bug, please report it. (Last start: %@:%u, last valid stop: %@:%u, this stop attempt: %@:%u.)", OOLogAbbreviatedFileName(sLastStartedFile), sLastStartedLine, OOLogAbbreviatedFileName(sLastStoppedFile), sLastStoppedLine, OOLogAbbreviatedFileName(file), line);
        return;
    }
    
    sLastStoppedFile = file;
    sLastStoppedLine = line;
 
#if OOJS_DEBUG_LIMITER
    OOLog(@"script.javaScript.timeLimit.debug",@"Limiter ending: %u <= %u",sLimiterStartDepth-1,sLimiterStartDepth);
#endif
 
#endif
    
    if (--sLimiterStartDepth == 0)  sLimiterTimeLimit = 0.0;
}

References OOLog, OOLogAbbreviatedFileName(), sLastStartedFile, sLastStartedLine, sLastStoppedFile, sLastStoppedLine, sLimiterStartDepth, and sLimiterTimeLimit.

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◆ OOJSTimeManagementInit()

void OOJSTimeManagementInit	(	OOJavaScriptEngine *	engine,
		JSRuntime *	runtime )

Definition at line 254 of file OOJSEngineTimeManagement.m.

{
    [NSThread detachNewThreadSelector:@selector(watchdogTimerThread)
                             toTarget:engine
                           withObject:nil];
    
    JS_SetContextCallback(runtime, ContextCallback);
}

◆ OperationCallback()

static JSBool OperationCallback ( JSContext * context )

static

Definition at line 217 of file OOJSEngineTimeManagement.m.

{
    if (!sStop)  return YES;
    
    JS_ClearPendingException(context);
    
    OOHighResTimeValue now = OOGetHighResTime();
    OOTimeDelta elapsed = OOHighResTimeDeltaInSeconds(sLimiterStart, now);
    OODisposeHighResTime(now);
    
    if (elapsed <= sLimiterTimeLimit)  return YES;
    
    OOLogERR(@"script.javaScript.timeLimit", @"Script \"%@\" ran for %g seconds and has been terminated.", [[OOJSScript currentlyRunningScript] name], elapsed);
#ifndef NDEBUG
    OOJSDumpStack(context);
#endif
    
    // FIXME: we really should put something in the JS log here, but since that's implemented in JS there are complications.
    
    return NO;
}