C++ FLAG_SET函數代碼示例

/**
 * 更新好友信息數據.
 * @param pal 好友數據
 */
void UdpData::UpdatePalInfo(PalInfo *pal)
{
        g_free(pal->segdes);
        pal->segdes = progdt.FindNetSegDescription(ipv4);
        g_free(pal->version);
        if (!(pal->version = iptux_get_section_string(buf, ':', 0)))
                pal->version = g_strdup("?");
        g_free(pal->user);
        if (!(pal->user = iptux_get_section_string(buf, ':', 2)))
                pal->user = g_strdup("???");
        g_free(pal->host);
        if (!(pal->host = iptux_get_section_string(buf, ':', 3)))
                pal->host = g_strdup("???");
        if (!FLAG_ISSET(pal->flags, 2)) {
                g_free(pal->name);
                if (!(pal->name = ipmsg_get_attach(buf, ':', 5)))
                        pal->name = g_strdup(_("mysterious"));
                g_free(pal->group);
                pal->group = GetPalGroup();
                g_free(pal->iconfile);
                if (!(pal->iconfile = GetPalIcon()))
                        pal->iconfile = g_strdup(progdt.palicon);
                FLAG_CLR(pal->flags, 0);
                g_free(pal->encode);
                if ( (pal->encode = GetPalEncode()))
                        FLAG_SET(pal->flags, 0);
                else
                        pal->encode = g_strdup(encode ? encode : "utf-8");
        }
        FLAG_SET(pal->flags, 1);
        pal->packetn = 0;
        pal->rpacketn = 0;
}

/**
 * 創建好友信息數據.
 * @return 好友數據
 */
PalInfo *UdpData::CreatePalInfo()
{
        PalInfo *pal;

        pal = new PalInfo;
        pal->ipv4 = ipv4;
        pal->segdes = progdt.FindNetSegDescription(ipv4);
        if (!(pal->version = iptux_get_section_string(buf, ':', 0)))
                pal->version = g_strdup("?");
        if (!(pal->user = iptux_get_section_string(buf, ':', 2)))
                pal->user = g_strdup("???");
        if (!(pal->host = iptux_get_section_string(buf, ':', 3)))
                pal->host = g_strdup("???");
        if (!(pal->name = ipmsg_get_attach(buf, ':', 5)))
                pal->name = g_strdup(_("mysterious"));
        pal->group = GetPalGroup();
        pal->photo = NULL;
        pal->sign = NULL;
        if (!(pal->iconfile = GetPalIcon()))
                pal->iconfile = g_strdup(progdt.palicon);
        if ( (pal->encode = GetPalEncode()))
                FLAG_SET(pal->flags, 0);
        else
                pal->encode = g_strdup(encode ? encode : "utf-8");
        FLAG_SET(pal->flags, 1);
        pal->packetn = 0;
        pal->rpacketn = 0;

        return pal;
}

static void
clientAutoMaximize (Client * c, int full_w, int full_h)
{
    if (FLAG_TEST (c->flags, CLIENT_FLAG_FULLSCREEN) ||
        !FLAG_TEST (c->xfwm_flags, XFWM_FLAG_HAS_BORDER))
    {
        /*
         * Fullscreen or undecorated windows should not be
         * automatically maximized...
         */
        return;
    }

    if (!FLAG_TEST (c->flags, CLIENT_FLAG_MAXIMIZED_HORIZ) &&
        (frameWidth (c) > full_w))
    {
        TRACE ("The application \"%s\" has requested a window width "
               "(%u) larger than the actual width available in the workspace (%u), "
               "the window will be maximized horizontally.", c->name, frameWidth (c), full_w);
        FLAG_SET (c->flags, CLIENT_FLAG_MAXIMIZED_HORIZ);
    }

    if (!FLAG_TEST (c->flags, CLIENT_FLAG_MAXIMIZED_VERT) &&
        (frameHeight (c) > full_h))
    {
        TRACE ("The application \"%s\" has requested a window height "
               "(%u) larger than the actual height available in the workspace (%u), "
               "the window will be maximized vertically.", c->name, frameHeight (c), full_h);
        FLAG_SET (c->flags, CLIENT_FLAG_MAXIMIZED_VERT);
    }
}

tail_recursion_elimination ()
{
  int alt;
  int tre = 0;

  if (no_recursion_elm_flag)
    return false;

  for (alt = SON (ulhs); alt != nil; alt = BROTHER (alt))
  {
    int mem = SON (alt);
    if (mem == nil)
      continue;
    if (FLAG_MARKED (alt, no_tail_recursion_opt_f))
      continue;
    mem = get_last_but_cut_mem (mem);
    if (DEF (mem) == ulhs)
    {
      FLAG_SET (alt, tail_recursion_opt_f);
      FLAG_SET (mem, tail_recursion_opt_f);
      tre = 1;
    }
  }
  return tre;
}

/*
 * Set Handle Features
 */
int nvmed_handle_feature_set(NVMED_HANDLE* nvmed_handle, int feature, int value) {
	switch(feature) {
		case HANDLE_DIRECT_IO:
			if(value)
				FLAG_SET(nvmed_handle, HANDLE_DIRECT_IO);
			else
				FLAG_UNSET(nvmed_handle, HANDLE_DIRECT_IO);
			break;

		case HANDLE_SYNC_IO:
			if(value)
				FLAG_SET(nvmed_handle, HANDLE_SYNC_IO);
			else
				FLAG_UNSET(nvmed_handle, HANDLE_SYNC_IO);
			break;

		case HANDLE_HINT_DMEM:
			if(value)
				FLAG_SET(nvmed_handle, HANDLE_HINT_DMEM);
			else
				FLAG_UNSET(nvmed_handle, HANDLE_HINT_DMEM);
			break;
	}

	return value;
}

void USB_Init(void)
{  
    extern uint32 __VECTOR_RAM[];

    /* Software Configuration */
    Setup_Pkt=(tUSB_Setup*)BufferPointer[bEP0OUT_ODD];
    gu8USB_State=uPOWER;

    /* MPU Configuration */
    MPU_CESR=0;                                     // MPU is disable. All accesses from all bus masters are allowed

    /* SIM Configuration */
    #ifdef USB_CLOCK_CLKIN
    FLAG_SET(SIM_SCGC5_PORTE_SHIFT,SIM_SCGC5); 
    PORTE_PCR26=(0|PORT_PCR_MUX(7));                // Enabling PTE26 as CLK input    
    #endif    
    
    #ifdef USB_CLOCK_PLL
    FLAG_SET(SIM_SOPT2_PLLFLLSEL_SHIFT,SIM_SOPT2);  // Select PLL output
    #endif
    
    #ifndef USB_CLOCK_CLKIN
    FLAG_SET(SIM_SOPT2_USBSRC_SHIFT,SIM_SOPT2);     // PLL/FLL selected as CLK source
    #endif

    SIM_CLKDIV2|=USB_FARCTIONAL_VALUE;              // USB Freq Divider
    SIM_SCGC4|=(SIM_SCGC4_USBOTG_MASK);             // USB Clock Gating
    
    /* NVIC Configuration */
    __VECTOR_RAM[89]=(UINT32)USB_ISR;      //replace ISR
    //NVICICER2|=(1<<9);                     //Clear any pending interrupts on USB
    NVICISER2|=(1<<9);                     //Enable interrupts from USB module  

    
    /* USB Module Configuration */
    // Reset USB Module
    USB0_USBTRC0|=USB_USBTRC0_USBRESET_MASK;
    while(FLAG_CHK(USB_USBTRC0_USBRESET_SHIFT,USB0_USBTRC0)){};
    
    // Set BDT Base Register
    USB0_BDTPAGE1=(UINT8)((UINT32)tBDTtable>>8);
    USB0_BDTPAGE2=(UINT8)((UINT32)tBDTtable>>16);
    USB0_BDTPAGE3=(UINT8)((UINT32)tBDTtable>>24);

    // Clear USB Reset flag
    FLAG_SET(USB_ISTAT_USBRST_MASK,USB0_ISTAT);

    // Enable USB Reset Interrupt
    FLAG_SET(USB_INTEN_USBRSTEN_SHIFT,USB0_INTEN);
    
    // Enable weak pull downs
    USB0_USBCTRL=0x40;

    USB0_USBTRC0|=0x40;

    USB0_CTL|=0x01;
    

}

void USB_Reset_Handler(void)
{
    //PMC_VLPR_Exit();
      
    /* Software Flags */
    u8CDCState=0;
    gu8USBClearFlags=0xFF;
    gu8USB_Toogle_flags=0;
    gu8USB_PingPong_flags=0x00;
    
    /* Disable all data EP registers */
    USB0_ENDPT1=0x00;
    USB0_ENDPT2=0x00;
    USB0_ENDPT3=0x00;
    USB0_ENDPT4=0x00;
    USB0_ENDPT5=0x00;
    USB0_ENDPT6=0x00;

    /* EP0 BDT Setup */
    // EP0 OUT BDT Settings
    tBDTtable[bEP0OUT_ODD].Cnt = EP0_SIZE;
    tBDTtable[bEP0OUT_ODD].Addr =(UINT32)gu8EP0_OUT_ODD_Buffer;
    tBDTtable[bEP0OUT_ODD].Stat._byte = kUDATA1;         
    // EP0 OUT BDT Settings 
    tBDTtable[bEP0OUT_EVEN].Cnt = EP0_SIZE;
    tBDTtable[bEP0OUT_EVEN].Addr =(UINT32)gu8EP0_OUT_EVEN_Buffer;
    tBDTtable[bEP0OUT_EVEN].Stat._byte = kUDATA1;         
    // EP0 IN BDT Settings 
    tBDTtable[bEP0IN_ODD].Cnt = EP0_SIZE;              
    tBDTtable[bEP0IN_ODD].Addr =(UINT32)gu8EP0_IN_ODD_Buffer;      
    tBDTtable[bEP0IN_ODD].Stat._byte = kUDATA0;   
    // EP0 IN BDT Settings 
    tBDTtable[bEP0IN_EVEN].Cnt = (EP0_SIZE);              
    tBDTtable[bEP0IN_EVEN].Addr =(UINT32)gu8EP0_IN_EVEN_Buffer;      
    tBDTtable[bEP0IN_EVEN].Stat._byte = kUDATA0;        

    // Enable EP0
    USB0_ENDPT0=0x0D;

    // Clear all Error flags
    USB0_ERRSTAT=0xFF;
    
    // CLear all USB ISR flags
    USB0_ISTAT=0xFF;

    // Set default Address
    USB0_ADDR=0x00;

    // Enable all error sources
    USB0_ERREN=0xFF;

    // USB Interrupt Enablers
    FLAG_SET(USB_INTEN_TOKDNEEN_SHIFT,USB0_INTEN);
    FLAG_SET(USB_INTEN_SOFTOKEN_SHIFT,USB0_INTEN);
    FLAG_SET(USB_INTEN_ERROREN_SHIFT,USB0_INTEN); 
    FLAG_SET(USB_INTEN_USBRSTEN_SHIFT,USB0_INTEN);    
}

/*
 * Allocation cache slot and memory
 */
int nvmed_cache_alloc(NVMED* nvmed, unsigned int size, bool lazy_init) {
	int i;
	unsigned int req_size;
	NVMED_CACHE_SLOT *slot;
	NVMED_CACHE *info;
	u64 *paList;

	pthread_spin_lock(&nvmed->mngt_lock);

	if(size == 0) return -NVMED_FAULT;
	if(size == nvmed->num_cache_size) return 0;
	if(size < nvmed->num_cache_size) {
		nvmed_printf("%s: Cache shrinking is not supported\n", nvmed->ns_path);
		return -NVMED_FAULT;
	}
	
	req_size = size - nvmed->num_cache_size;
	slot = malloc(sizeof(NVMED_CACHE_SLOT));
	
	slot->cache_info = malloc(sizeof(NVMED_CACHE) * req_size);
	slot->cache_ptr = mmap(NULL, PAGE_SIZE * req_size, PROT_READ | PROT_WRITE, 
			MAP_ANONYMOUS | MAP_LOCKED | MAP_SHARED, -1, 0);
	slot->size = req_size;
	LIST_INSERT_HEAD(&nvmed->slot_head, slot, slot_list);
	
	/* Initialize memory and translate virt to phys addr */
	if(!lazy_init) {
		paList = malloc(sizeof(u64) * req_size);
		virt_to_phys(nvmed, slot->cache_ptr, paList, PAGE_SIZE * req_size);
	}

	/* fill cache info and add to free list */
	for(i=0; i<req_size; i++) {
		info = slot->cache_info + i;
		info->lpaddr = 0;
		info->ref = 0;
		if(lazy_init == false) {
			info->paddr = paList[i];
			FLAG_SET(info, CACHE_FREE);
		}
		else {
			info->paddr = 0;
			FLAG_SET(info, CACHE_UNINIT | CACHE_FREE);
		}
		info->ptr = slot->cache_ptr + (i*PAGE_SIZE);

		TAILQ_INSERT_HEAD(&nvmed->free_head, info, cache_list);
	}
	
	nvmed->num_cache_size = size;

	pthread_spin_unlock(&nvmed->mngt_lock);

	return req_size;
}

//=========================================================================
//函數名: hw_usb_reset_handler
//功  能: 處理複位中斷
//參  數: 無
//返  回: 無
//=========================================================================
void hw_usb_reset_handler(void)
{      
    //清標誌
    gu8USBClearFlags=0xFF;
    gu8USB_Toogle_flags=0;
    
    //禁止所有端點
    USB0_ENDPT1=0x00;
    USB0_ENDPT2=0x00;
    USB0_ENDPT3=0x00;
    USB0_ENDPT4=0x00;
    USB0_ENDPT5=0x00;
    USB0_ENDPT6=0x00;

    // EP0 BDT Setup
    // EP0 OUT BDT 設置
    tBDTtable[bEP0OUT_ODD].Cnt = EP0_SIZE;
    tBDTtable[bEP0OUT_ODD].Addr =(uint_32)gu8EP0_OUT_ODD_Buffer;
    tBDTtable[bEP0OUT_ODD].Stat._byte = kUDATA1;         
    // EP0 OUT BDT 設置
    tBDTtable[bEP0OUT_EVEN].Cnt = EP0_SIZE;
    tBDTtable[bEP0OUT_EVEN].Addr =(uint_32)gu8EP0_OUT_EVEN_Buffer;
    tBDTtable[bEP0OUT_EVEN].Stat._byte = kUDATA1;         
    // EP0 IN BDT 設置 
    tBDTtable[bEP0IN_ODD].Cnt = EP0_SIZE;              
    tBDTtable[bEP0IN_ODD].Addr =(uint_32)gu8EP0_IN_ODD_Buffer;      
    tBDTtable[bEP0IN_ODD].Stat._byte = kUDATA0;   
    // EP0 IN BDT 設置 
    tBDTtable[bEP0IN_EVEN].Cnt = (EP0_SIZE);              
    tBDTtable[bEP0IN_EVEN].Addr =(uint_32)gu8EP0_IN_EVEN_Buffer;      
    tBDTtable[bEP0IN_EVEN].Stat._byte = kUDATA0;        

    // 使能 EP0
    USB0_ENDPT0=0x0D;

    // 清除所有的錯誤
    USB0_ERRSTAT=0xFF;
    
    // 清除所有的中斷標誌
    USB0_ISTAT=0xFF;

    // USB設備地址
    USB0_ADDR=0x00;

    // 使能所有的錯誤中斷
    USB0_ERREN=0xFF;

    // USB模塊中斷使能
    FLAG_SET(USB_INTEN_TOKDNEEN_SHIFT,USB0_INTEN);
    FLAG_SET(USB_INTEN_SOFTOKEN_SHIFT,USB0_INTEN);
    FLAG_SET(USB_INTEN_ERROREN_SHIFT,USB0_INTEN); 
    FLAG_SET(USB_INTEN_USBRSTEN_SHIFT,USB0_INTEN);    
}

void _bsp_platform_init(void)
{
    /* MPU Configuration */
    MPU_CESR=0;                                     // MPU is disable. All accesses from all bus masters are allowed

    /* SIM Configuration */
    FLAG_SET(SIM_SOPT2_USBSRC_SHIFT,SIM_SOPT2);     // PLL/FLL selected as CLK source
    FLAG_SET(SIM_SOPT2_PLLFLLSEL_SHIFT,SIM_SOPT2);  // Select PLL output
    SIM_CLKDIV2=0x02;                               // USB Freq Divider
    SIM_SCGC4|=(SIM_SCGC4_USBOTG_MASK);             // USB Clock Gating    


    // weak pulldowns
    USB0_USBCTRL=0x40;
}  

//=========================================================================
//函數名: hw_usb_endpoint_setup_handler
//功  能: 當主機請求接口配置請求時，執行該函數
//參  數: 無  
//返  回: 無
//=========================================================================
void hw_usb_endpoint_setup_handler(void)
{
    uint_16 u16Status;
    

    switch(Setup_Pkt->bRequest)
    {        
        case GET_STATUS:
            if(FLAG_CHK(Setup_Pkt->wIndex_h,gu8HALT_EP))
                u16Status=0x0100;
            else
                u16Status=0x0000;
            
            hw_usb_ep_in_transfer(EP0,(uint_8*)&u16Status,2);
            break;

        case CLEAR_FEATURE:
            FLAG_CLR(Setup_Pkt->wIndex_h,gu8HALT_EP); 
            hw_usb_ep_in_transfer(EP0,0,0);
            break;

        case SET_FEATURE:
            FLAG_SET(Setup_Pkt->wIndex_h,gu8HALT_EP); 
            hw_usb_ep_in_transfer(EP0,0,0);
            break;

        default:
            break;
    }
}

void vfnInitUSBClock (uint8_t u8ClkOption)
{

  switch (u8ClkOption)
  {
    case MCGPLL0:
    {
      SIM_SOPT2 |= SIM_SOPT2_PLLFLLSEL_MASK     /** PLL reference */
                |  SIM_SOPT2_USBSRC_MASK;       /** USB clock source MCGPLLCLK/2 or MCGFLLCLK  */

      break;
    }


    case MCGFLL:
    {
        /** Configure FLL to generate a 48MHz core clock */
       fll_init();

        SIM_SOPT2 &= ~SIM_SOPT2_PLLFLLSEL_MASK;       /** FLL reference */
        SIM_SOPT2 |=  SIM_SOPT2_USBSRC_MASK;          /** USB clock source MCGPLLCLK/2 or MCGFLLCLK  */
        break;
    }

    case CLKIN:
    {
      SIM_SOPT2 &= (uint32_t)(~SIM_SOPT2_USBSRC_MASK);    /** PTA5 selected as USBFS CLK source */
      FLAG_SET(SIM_SCGC5_PORTA_SHIFT,SIM_SCGC5);
      PORTA_PCR5=(0|PORT_PCR_MUX(2));                   /** Enable PTA5 as CLK input */
    }
  }

  SIM_SCGC4|=(SIM_SCGC4_USBOTG_MASK);             // USB Clock Gating
}

void block_store_link(block_store_t *const bs, const char *const filename) {
    if (bs && filename) {
        if (! FLAG_CHECK(bs, FILE_LINKED)) {
            // Ok, I can make a giant complicated hunk of logic to:
            //   Create if it doesn't exist
            //   Increase size if smaller
            //   Decrease size if larger
            // and It'll be a giant headache for various reasons (error checking, portability)
            // OR, I can just do it in two commands and call it a day.
            bs->fd = open(filename, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP);
            if (bs->fd != -1) {
                if (utility_write_file(bs->fd, bs->data_blocks, BLOCK_COUNT * BLOCK_SIZE) == BLOCK_COUNT * BLOCK_SIZE) {
                    // Kill the DBM and dirty flag, set link state
                    bitmap_format(bs->dbm, 0x00);
                    FLAG_CLEAR(bs, DIRTY);
                    FLAG_SET(bs, FILE_LINKED);
                    bs_errno = BS_OK;
                    return;
                }
                bs_errno = BS_FILE_IO;
                return;
            }
            bs_errno = BS_FILE_ACCESS;
            return;
        }
        bs_errno = BS_LINK_EXISTS;
        return;
    }
    bs_errno = BS_PARAM;
}

void I8254Pit::writePeriodicIo(void)
{
	state.lock.acquire();

	io::write8(
		i8254_CHAN0_IO_CONTROL,
		i8254_CHAN0_CONTROL_SELECT_COUNTER
		| i8254_CHAN0_CONTROL_MODE2_RATEGEN
		| i8254_CHAN0_CONTROL_COUNTER_WRITE_LOWHIGH);

	atomicAsm::memoryBarrier();

	// Write out the currently set periodic rate.
	io::write8(
		i8254_CHAN0_IO_COUNTER,
		i8254State.currentIntervalClks & 0xFF);

	io::write8(
		i8254_CHAN0_IO_COUNTER,
		i8254State.currentIntervalClks >> 8);

	FLAG_SET(
		state.rsrc.flags,
		ZKCM_TIMERDEV_STATE_FLAGS_ENABLED
		| ZKCM_TIMERDEV_STATE_FLAGS_SOFT_ENABLED);

	state.lock.release();
}

int esys_isolate(struct esys* esys, ocn_entity_token_t token, entity_t** entity)
{
    if(token >= OCN_MAX_ENTITIES)
        return OCN_ENTITY_ERR_RANGE;

    *entity = NULL;

    pthread_spin_lock(&esys->lock);

    struct entityslot* slot = &esys->slots[token];

    if(!FLAG_GET(slot->flags, ENTITYSLOT_FLAG_USED))
    {
        pthread_spin_unlock(&esys->lock);
        return OCN_ENTITY_ERR_NONEXIST;
    }

    if(FLAG_GET(slot->flags, ENTITYSLOT_FLAG_ISOLATED))
    {
        pthread_spin_unlock(&esys->lock);
        return OCN_ENTITY_ERR_ISOLATED;
    }

    /* --- */

    FLAG_SET(slot->flags, ENTITYSLOT_FLAG_ISOLATED);
    *entity = &slot->entity;

    /* --- */

    pthread_spin_unlock(&esys->lock);

    return OCN_OK;
}