SSwt.hxx

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#ifndef __xwos_cxx_SSwt_hxx__
#define __xwos_cxx_SSwt_hxx__
 
#include <xwos/osal/swt.hxx>
#include <xwos/cxx/Cpu.hxx>
 
namespace xwos {
 
template<xwid_t TCpu = 0UL>
class SSwt
{
  private:
    struct xwos_swt mSwt; 
  public:
    SSwt(xwsq_t flag = XWOS_SWT_FLAG_NULL)
    {
        xwos_swt_init(&mSwt, flag);
    }
    virtual ~SSwt() {}
    xwer_t start(xwtm_t origin, xwtm_t period)
    {
        xwer_t rc;
 
        if (TCpu == Cpu::getLocalCpuId()) {
            rc = xwos_swt_start(&mSwt, origin, period,
                                (xwos_swt_f)sSwtAlarmFunction, this);
        } else {
            rc = -EHOSTUNREACH;
        }
        return rc;
    }
    xwer_t stop() { return xwos_swt_stop(&mSwt); }
    struct xwos_swt * getXwosObj() { return &mSwt; }
 
    /* 生命周期管理 */
    xwer_t grab() { return xwos_swt_grab(&mSwt); } 
    xwer_t put() { return xwos_swt_put(&mSwt); } 
  protected:
    virtual void swtAlarmFunction() {} 
  private:
    static void sSwtAlarmFunction(struct xwos_swt * swt, SSwt * obj) { obj->swtAlarmFunction(); }
};
 
} // namespace xwos
 
#endif /* xwos/cxx/SSwt.hxx */