How to set exit while using cmsis-driver

EXTI ?

On what platform?

//Ð²Ñ€ÐµÐ¼ÐµÐ½Ð½Ð°Ñ Ð¸Ð½Ð¸Ñ†Ð¸Ð°Ð»Ð¸Ð·Ð°Ñ†Ð¸Ñ ÐºÐ½Ð¾Ð¿ÐºÐ¸ Ñ Ñ„Ð¸ÐºÑацией  проверка Ð²ÐºÐ»ÑŽÑ‡ÐµÐ½Ð¸Ñ Ð² прерываниÑÑ…
    GPIO_StructInit(&port);
    port.GPIO_Mode = GPIO_Mode_IPD; //GPIO_Mode_AF_PP;
    port.GPIO_Pin = GPIO_Pin_0;                                          //поÑмотреть временно удобный пин.
    port.GPIO_Speed = GPIO_Speed_2MHz;
    GPIO_Init(GPIOB, &port);                                                         //выÑтавить временно удобный порт.
//наÑтройка ÑиÑтемы прерываний
                GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource0);
                 /* PB0 is connected to EXTI_Line0, which has EXTI0_IRQn vector */
    NVIC_InitStruct.NVIC_IRQChannel = EXTI0_IRQn;
    /* Set priority */
    NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00;
    /* Set sub priority */
    NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x00;
    /* Enable interrupt */
    NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
    /* Add to NVIC */
    NVIC_Init(&NVIC_InitStruct);
                EXTI_InitStruct.EXTI_Line = EXTI_Line0;
    /* Enable interrupt */
    EXTI_InitStruct.EXTI_LineCmd = ENABLE;
    /* Interrupt mode */
    EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
    /* Triggers on rising and falling edge */
    EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
    /* Add to EXTI */
    EXTI_Init(&EXTI_InitStruct);
                NVIC_EnableIRQ(EXTI0_IRQn);                                                     // выÑтавить на нужное ИРКУ

void EXTI0_IRQHandler(void)
        {
            if (EXTI_GetITStatus(EXTI_Line0) != RESET) {
        if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) != 0) {
            // Rising

        }
        if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0) {
            // Falling

        }

        /* Clear interrupt flag */
        EXTI_ClearITPendingBit(EXTI_Line0);
    }
}

something like this

I still have to forget in the beginning:

GPIO_InitTypeDef port;
EXTI_InitTypeDef EXTI_InitStruct;
NVIC_InitTypeDef NVIC_InitStruct;