WebCore/GenericWorkerTask.h

   1 /*
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  10  *     * Redistributions in binary form must reproduce the above
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  12  * in the documentation and/or other materials provided with the
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  16  * this software without specific prior written permission.
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  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef GenericWorkerTask_h
  32 #define GenericWorkerTask_h
  33
  34 #if ENABLE(WORKERS)
  35
  36 #include "WorkerMessagingProxy.h"
  37 #include "ScriptExecutionContext.h"
  38 #include <wtf/PassRefPtr.h>
  39
  40 namespace WebCore {
  41     class GenericWorkerTaskBase : public ScriptExecutionContext::Task {
  42     protected:
  43         GenericWorkerTaskBase(WorkerMessagingProxy* messagingProxy) : m_messagingProxy(messagingProxy)
  44         {
  45         }
  46
  47         bool canPerformTask()
  48         {
  49             return !m_messagingProxy->askedToTerminate();
  50         }
  51
  52         WorkerMessagingProxy* m_messagingProxy;
  53     };
  54
  55     template<typename P1, typename MP1, typename P2, typename MP2, typename P3, typename MP3, typename P4, typename MP4, typename P5, typename MP5, typename P6, typename MP6>
  56     class GenericWorkerTask6 : public GenericWorkerTaskBase {
  57     public:
  58         typedef void (*Method)(ScriptExecutionContext*, MP1, MP2, MP3, MP4, MP5, MP6);
  59         typedef GenericWorkerTask6<P1, MP1, P2, MP2, P3, MP3, P4, MP4, P5, MP5, P6, MP6> GenericWorkerTask;
  60
  61         static PassRefPtr<GenericWorkerTask> create(WorkerMessagingProxy* messagingProxy, Method method, const P1& parameter1, const P2& parameter2, const P3& parameter3, const P4& parameter4, const P5& parameter5, const P6& parameter6)
  62         {
  63             return adoptRef(new GenericWorkerTask(messagingProxy, method, parameter1, parameter2, parameter3, parameter4, parameter5, parameter6));
  64         }
  65
  66     private:
  67         GenericWorkerTask6(WorkerMessagingProxy* messagingProxy, Method method, const P1& parameter1, const P2& parameter2, const P3& parameter3, const P4& parameter4, const P5& parameter5, const P6& parameter6)
  68             : GenericWorkerTaskBase(messagingProxy)
  69             , m_method(method)
  70             , m_parameter1(parameter1)
  71             , m_parameter2(parameter2)
  72             , m_parameter3(parameter3)
  73             , m_parameter4(parameter4)
  74             , m_parameter5(parameter5)
  75             , m_parameter6(parameter6)
  76         {
  77         }
  78
  79         virtual void performTask(ScriptExecutionContext* context)
  80         {
  81             if (!canPerformTask())
  82                 return;
  83             (*m_method)(context, m_parameter1, m_parameter2, m_parameter3, m_parameter4, m_parameter5, m_parameter6);
  84         }
  85
  86     private:
  87         Method m_method;
  88         P1 m_parameter1;
  89         P2 m_parameter2;
  90         P3 m_parameter3;
  91         P4 m_parameter4;
  92         P5 m_parameter5;
  93         P6 m_parameter6;
  94     };
  95
  96     template<typename P1, typename MP1, typename P2, typename MP2, typename P3, typename MP3, typename P4, typename MP4, typename P5, typename MP5, typename P6, typename MP6>
  97     PassRefPtr<GenericWorkerTask6<P1, MP1, P2, MP2, P3, MP3, P4, MP4, P5, MP5, P6, MP6> > createCallbackTask(
  98         WorkerMessagingProxy* messagingProxy,
  99         void (*method)(ScriptExecutionContext*, MP1, MP2, MP3, MP4, MP5, MP6),
 100         const P1& parameter1, const P2& parameter2, const P3& parameter3, const P4& parameter4, const P5& parameter5, const P6& parameter6)
 101     {
 102         return GenericWorkerTask6<P1, MP1, P2, MP2, P3, MP3, P4, MP4, P5, MP5, P6, MP6>::create(messagingProxy, method, parameter1, parameter2, parameter3, parameter4, parameter5, parameter6);
 103     }
 104
 105 } // namespace WebCore
 106
 107 #endif // ENABLE(WORKERS)
 108
 109 #endif // GenericWorkerTask_h