DSwt.hxx

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#ifndef __xwos_cxx_DSwt_hxx__
#define __xwos_cxx_DSwt_hxx__
 
#include <xwos/osal/swt.hxx>
#include <xwos/cxx/Cpu.hxx>
 
namespace xwos {
 
template<xwid_t TCpu = 0>
class DSwt
{
  private:
    xwos_swt_d mSwtDesc; 
    xwer_t mCtorRc; 
  public:
    DSwt(xwsq_t flag = XWOS_SWT_FLAG_NULL)
    {
        mCtorRc = xwos_swt_create(&mSwtDesc, flag);
    }
    virtual ~DSwt() { xwos_swt_delete(mSwtDesc); }
    xwer_t getDSwtCtorRc() { return mCtorRc; }
    xwer_t start(xwtm_t origin, xwtm_t period)
    {
        xwer_t rc;
 
        if (TCpu == Cpu::getLocalCpuId()) {
            rc = xwos_swt_start(mSwtDesc.swt, origin, period,
                                (xwos_swt_f)sSwtAlarmFunction, this);
        } else {
            rc = -EHOSTUNREACH;
        }
        return rc;
    }
    xwer_t stop() { return xwos_swt_stop(mSwtDesc.swt); }
    struct xwos_swt * getXwosObj() { return mSwtDesc.swt; }
 
    /* 生命周期管理 */
    xwer_t acquire() { return xwos_swt_acquire(mSwtDesc); } 
    xwer_t release() { return xwos_swt_release(mSwtDesc); } 
  protected:
    virtual void swtAlarmFunction() {} 
  private:
    static void sSwtAlarmFunction(struct xwos_swt * swt, DSwt * obj) { obj->swtAlarmFunction(); }
};
 
} // namespace xwos
 
#endif /* xwos/cxx/DSwt.hxx */