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POHuge Memory Leak in CGMutablePathRef
 

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    <p>I Have Rendered nearly 1000 Polygons in the map. I get the path of the polygon using</p> <pre><code>- (CGPathRef)polyPath:(MKPolygon *)polygon { MKMapPoint *points = [polygon points]; NSUInteger pointCount = [polygon pointCount]; NSUInteger i; if (pointCount &lt; 3) return NULL; CGMutablePathRef path = CGPathCreateMutable(); if([polygon isKindOfClass:[MKPolygon class]]) { for (MKPolygon *interiorPolygon in polygon.interiorPolygons) { CGPathRef interiorPath = [self polyPath:interiorPolygon]; CGPathAddPath(path, NULL, interiorPath); CGPathRelease(interiorPath); } } CGPoint relativePoint = [self pointForMapPoint:points[0]]; CGPathMoveToPoint(path, NULL, relativePoint.x, relativePoint.y); for (i = 1; i &lt; pointCount; i++) { relativePoint = [self pointForMapPoint:points[i]]; CGPathAddLineToPoint(path, NULL, relativePoint.x, relativePoint.y); } return path; } - (void)drawMapRect:(MKMapRect)mapRect zoomScale:(MKZoomScale)zoomScale inContext:(CGContextRef)context { MultiPolygon *multiPolygon = (MultiPolygon *)self.overlay; for (MKPolygon *polygon in multiPolygon.polygons) { if([polygon isKindOfClass:[MKPolygon class]]) { CGPathRef path = [self polyPath:polygon]; if (path) { [self applyFillPropertiesToContext:context atZoomScale:zoomScale]; CGContextBeginPath(context); CGContextAddPath(context, path); CGContextDrawPath(context, kCGPathEOFill); [self applyStrokePropertiesToContext:context atZoomScale:zoomScale]; CGContextBeginPath(context); CGContextAddPath(context, path); CGContextSetAlpha(context,1.0); CGContextStrokePath(context); } CGPathRelease(path); } } } </code></pre> <p>I get leak in </p> <pre><code>CGPathRelease(interiorPath); </code></pre> <p>and</p> <pre><code>return path; </code></pre> <p>I know that i have to release path using CGPathRelease but where to release it while i have to return.</p> <p>Both leaks a huge memory. I have been working on this for days, Please help.</p> <p>Thanks in Advance</p>
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