Exemple #1
0
/*
 * Dummy function for checking memset's arguments.
 */
void	*_dmalloc_memset(const char *file, const int line, void *buf,
			 const int ch, const DMALLOC_SIZE len)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if (! dmalloc_verify_pnt(file, line, "memset", buf,
			     0 /* not exact */, len)) {
      dmalloc_message("bad pointer argument found in memset");
    }
  }
  return (void *)memset(buf, ch, len);
}
Exemple #2
0
/*
 * Dummy function for checking strrchr's arguments.
 */
char	*_dmalloc_strrchr(const char *file, const int line,
			  const char *str, const int ch)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if (! dmalloc_verify_pnt(file, line, "strrchr", str,
			     0 /* not exact */, -1)) {
      dmalloc_message("bad pointer argument found in strrchr");
    }
  }
  return (char *)strrchr(str, ch);
}
Exemple #3
0
/*
 * Dummy function for checking bzero's arguments.
 */
void	_dmalloc_bzero(const char *file, const int line,
		       void *buf, const DMALLOC_SIZE len)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if (! dmalloc_verify_pnt(file, line, "bzero", buf,
			     0 /* not exact */, len)) {
      dmalloc_message("bad pointer argument found in bzero");
    }
  }
  bzero(buf, len);
}
Exemple #4
0
int PIR_detectMotion(void)
{
	if(BIT_IS_SET(INPUTPORT,INPUTPIN1))
	{
		return 1;
	}
	else if(BIT_IS_SET(INPUTPORT,INPUTPIN2))
	{
		return 2;
	}
  else if(BIT_IS_SET(INPUTPORT,INPUTPIN3))
  {
    return 3;
  }
  else
  {
    return NOTHING;
  }

	
}
Exemple #5
0
/**********************************************
 * 关闭定时器,并取消触发事件
 */
static void timing_cell_stop(unsigned int index)
{
	if(index >= TIMING100MS_EVENT_BASE && index < (TIMING100MS_EVENT_BASE+TIMING100MS_EVENT_COUNT)) {
	    TIM100MS_ARRAYS_T * ptiming = &tim100ms_arrys;
		index -= TIMING100MS_EVENT_BASE;
		if(BIT_IS_SET(ptiming->enable_bits,index)) {
		    if(THIS_INFO)printf("stop timeimg 100ms :%d\r\n",index);
		    SET_BIT(ptiming->enable_bits,  index,0);
		}
	} else if(index >= TIMING1S_EVENT_BASE && index < (TIMING1S_EVENT_BASE+TIMING1S_EVENT_COUNT)) {
	    TIM1S_ARRAYS_T * ptiming = &tim1s_arrys;
		index -= TIMING1S_EVENT_BASE;
		if(BIT_IS_SET(ptiming->enable_bits,index)) {
		    if(THIS_INFO)printf("stop timeimg 1s :%d\r\n",index);
		    SET_BIT(ptiming->enable_bits,  index,0);
		}
	} else {
	    if(THIS_ERROR)printf("timing stop error:%d\r\n",index);
	    handle_plc_command_error();
	}
}
Exemple #6
0
/*
 * ctree_find -- searches for a key in the tree
 */
uint64_t
ctree_find(struct ctree *t, uint64_t key)
{
	uint64_t *dst = t->root;
	struct node *a = NULL;
	while (NODE_IS_INTERNAL(dst)) {
		a = NODE_INTERNAL_GET(dst);
		dst = a->slots[BIT_IS_SET(key, a->diff)];
	}

	return dst ? *dst : 0;
}
Exemple #7
0
/*
 * Dummy function for checking strlen's arguments.
 */
DMALLOC_SIZE	_dmalloc_strlen(const char *file, const int line,
				const char *str)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if (! dmalloc_verify_pnt(file, line, "strlen", str,
			     0 /* not exact */, -1)) {
      dmalloc_message("bad pointer argument found in strlen");
    }
  }
  
  return loc_strlen(file, line, "strlen", str);
}
Exemple #8
0
static unsigned char get_last_bitval(unsigned int index)
{
	unsigned char idata bitval = TIMING100MS_EVENT_BASE;
	if(index >= IO_INPUT_BASE && index < (IO_INPUT_BASE+IO_INPUT_COUNT)) {
		index -= IO_INPUT_BASE;
        bitval = BIT_IS_SET(inputs_last,index);
	} else if(index >= IO_OUTPUT_BASE && index < (IO_OUTPUT_BASE+IO_OUTPUT_COUNT)) {
		index -= IO_OUTPUT_BASE;
        bitval = BIT_IS_SET(output_last,index);
	} else if(index >= AUXI_RELAY_BASE && index < (AUXI_RELAY_BASE + AUXI_RELAY_COUNT)) {
		index -= AUXI_RELAY_BASE;
        bitval = BIT_IS_SET(auxi_relays_last,index);
	} else if(index >= TIMING100MS_EVENT_BASE && index < (TIMING100MS_EVENT_BASE+TIMING100MS_EVENT_COUNT)) {
		index -= TIMING100MS_EVENT_BASE;
        bitval = BIT_IS_SET(tim100ms_arrys.event_bits_last,index);
	} else if(index >= TIMING1S_EVENT_BASE && index < (TIMING1S_EVENT_BASE + TIMING1S_EVENT_COUNT)) {
		index -= TIMING1S_EVENT_BASE;
        bitval = BIT_IS_SET(tim1s_arrys.event_bits_last,index);
	} else if(index >= COUNTER_EVENT_BASE && index < (COUNTER_EVENT_BASE+COUNTER_EVENT_COUNT)) {
	    index -= COUNTER_EVENT_BASE;
        bitval = BIT_IS_SET(counter_arrys.event_bits_last,index);
	} else {
	    if(THIS_ERROR)printf("get bit index error:%d\r\n",index);
		handle_plc_command_error();
	}
	return bitval;
}
Exemple #9
0
/*
 * static void *alloc_mem
 *
 * DESCRIPTION:
 *
 * Allocate space for bytes inside of an already open memory pool.
 *
 * RETURNS:
 *
 * Success - Pointer to the address to use.
 *
 * Failure - NULL
 *
 * ARGUMENTS:
 *
 * mp_p <-> Pointer to the memory pool.  If NULL then it will do a
 * normal malloc.
 *
 * byte_size -> Number of bytes to allocate in the pool.  Must be >0.
 *
 * error_p <- Pointer to integer which, if not NULL, will be set with
 * a mpool error code.
 */
static void *alloc_mem(mpool_t * mp_p, const unsigned long byte_size,
		       int *error_p)
{
	unsigned long size, fence;
	void *addr;

	/* make sure we have enough bytes */
	if (byte_size < MIN_ALLOCATION) {
		size = MIN_ALLOCATION;
	} else {
		size = byte_size;
	}

	if (BIT_IS_SET(mp_p->mp_flags, MPOOL_FLAG_NO_FREE)) {
		fence = 0;
	} else {
		fence = FENCE_SIZE;
	}

	/* get our free space + the space for the fence post */
	addr = get_space(mp_p, size + fence, error_p);
	if (addr == NULL) {
		/* error_p set in get_space */
		return NULL;
	}

	if (!BIT_IS_SET(mp_p->mp_flags, MPOOL_FLAG_NO_FREE)) {
		write_magic((char *)addr + size);
	}

	/* maintain our stats */
	mp_p->mp_alloc_c++;
	mp_p->mp_user_alloc += size;
	if (mp_p->mp_user_alloc > mp_p->mp_max_alloc) {
		mp_p->mp_max_alloc = mp_p->mp_user_alloc;
	}

	SET_POINTER(error_p, MPOOL_ERROR_NONE);
	return addr;
}
Exemple #10
0
/*
 * Dummy function for checking strspn's arguments.
 */
int	_dmalloc_strspn(const char *file, const int line,
			const char *str, const char *list)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((! dmalloc_verify_pnt(file, line, "strspn", str,
			      0 /* not exact */, -1))
	|| (! dmalloc_verify_pnt(file, line, "strspn", list,
				 0 /* not exact */, -1))) {
      dmalloc_message("bad pointer argument found in strspn");
    }
  }
  return strspn(str, list);
}
Exemple #11
0
/*
 * Dummy function for checking strcmp's arguments.
 */
int	_dmalloc_strcmp(const char *file, const int line,
			const char *s1, const char *s2)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((! dmalloc_verify_pnt(file, line, "strcmp", s1,
			      0 /* not exact */, -1))
	|| (! dmalloc_verify_pnt(file, line, "strcmp", s2,
				 0 /* not exact */, -1))) {
      dmalloc_message("bad pointer argument found in strcmp");
    }
  }
  return strcmp(s1, s2);
}
Exemple #12
0
/*
 * Dummy function for checking memmove's arguments.
 */
void	*_dmalloc_memmove(const char *file, const int line,
			  void *to, const void *from, const DMALLOC_SIZE len)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((! dmalloc_verify_pnt(file, line, "memmove", to,
			      0 /* not exact */, len))
	|| (! dmalloc_verify_pnt(file, line, "memmove", from,
				 0 /* not exact */, len))) {
      dmalloc_message("bad pointer argument found in memmove");
    }
  }
  return (void *)memmove(to, from, len);
}
Exemple #13
0
/*
 * Dummy function for checking memcmp's arguments.
 */
int	_dmalloc_memcmp(const char *file, const int line,
			const void *b1, const void *b2, const DMALLOC_SIZE len)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((! dmalloc_verify_pnt(file, line, "memcmp", b1,
			      0 /* not exact */, len))
	|| (! dmalloc_verify_pnt(file, line, "memcmp", b2,
				 0 /* not exact */, len))) {
      dmalloc_message("bad pointer argument found in memcmp");
    }
  }
  return memcmp(b1, b2, len);
}
Exemple #14
0
/*
 * Dummy function for checking bcopy's arguments.
 */
void	_dmalloc_bcopy(const char *file, const int line,
		       const void *from, void *to, const DMALLOC_SIZE len)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((! dmalloc_verify_pnt(file, line, "bcopy", from,
			      0 /* not exact */, len))
	|| (! dmalloc_verify_pnt(file, line, "bcopy", to,
				 0 /* not exact */, len))) {
      dmalloc_message("bad pointer argument found in bcopy");
    }
  }
  bcopy(from, to, len);
}
Exemple #15
0
int32_t AJS_TargetIO_PinTrigId(uint32_t* level)
{
    if (trigSet == 0) {
        return AJS_IO_PIN_NO_TRIGGER;
    } else {
        static uint32_t id = 0;
        while (!BIT_IS_SET(trigSet, id % MAX_TRIGGERS)) {
            ++id;
        }
        BIT_CLR(trigSet, id % MAX_TRIGGERS);
        return (id % MAX_TRIGGERS);
    }
}
Exemple #16
0
/*
 * static int free_mem
 *
 * DESCRIPTION:
 *
 * Free an address from a memory pool.
 *
 * RETURNS:
 *
 * Success - MPOOL_ERROR_NONE
 *
 * Failure - Mpool error code
 *
 * ARGUMENTS:
 *
 * mp_p <-> Pointer to the memory pool.  If NULL then it will do a
 * normal free.
 *
 * addr <-> Address to free.
 *
 * size -> Size of the address being freed.
 */
static	int	free_mem(mpool_t *mp_p, void *addr, const unsigned long size)
{
  unsigned long	old_size, fence;
  int		ret;
  mpool_block_t	*block_p;
  
  /*
   * If the size is larger than a block then the allocation must be at
   * the front of the block.
   */
  if (size > MAX_BLOCK_USER_MEMORY(mp_p)) {
    block_p = (mpool_block_t *)((char *)addr - sizeof(mpool_block_t));
    if (block_p->mb_magic != BLOCK_MAGIC
	|| block_p->mb_magic2 != BLOCK_MAGIC) {
      return MPOOL_ERROR_POOL_OVER;
    }
  }
  
  /* make sure we have enough bytes */
  if (size < MIN_ALLOCATION) {
    old_size = MIN_ALLOCATION;
  }
  else {
    old_size = size;
  }
  
  /* if we are packing the pool smaller */
  if (BIT_IS_SET(mp_p->mp_flags, MPOOL_FLAG_NO_FREE)) {
    fence = 0;
  }
  else {
    /* find the user's magic numbers if they were written */
    ret = check_magic(addr, old_size);
    if (ret != MPOOL_ERROR_NONE) { 
      return ret;
    }
    fence = FENCE_SIZE;
  }
  
  /* now we free the pointer */
  ret = free_pointer(mp_p, addr, old_size + fence);
  if (ret != MPOOL_ERROR_NONE) {
    return ret;
  }
  mp_p->mp_user_alloc -= old_size;
  
  /* adjust our stats */
  mp_p->mp_alloc_c--;
  
  return MPOOL_ERROR_NONE;
}
Exemple #17
0
/*
 * Dummy function for checking strcpy's arguments.
 */
char	*_dmalloc_strcpy(const char *file, const int line,
			 char *to, const char *from)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((! dmalloc_verify_pnt(file, line, "strcpy", to,
			      0 /* not exact */,
			      loc_strlen(file, line, "strcpy", from) + 1))
	|| (! dmalloc_verify_pnt(file, line, "strcpy", from,
				 0 /* not exact */, -1))) {
      dmalloc_message("bad pointer argument found in strcpy");
    }
  }
  return (char *)strcpy(to, from);
}
Exemple #18
0
/*
 * Dummy function for checking strtok's arguments.
 */
char	*_dmalloc_strtok(const char *file, const int line,
			 char *str, const char *sep)
{
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if ((str != NULL
	 && (! dmalloc_verify_pnt(file, line, "strtok", str,
				  0 /* not exact */, -1)))
	|| (! dmalloc_verify_pnt(file, line, "strtok", sep,
				 0 /* not exact */, -1))) {
      dmalloc_message("bad pointer argument found in strtok");
    }
  }
  return (char *)strtok(str, sep);
}
Exemple #19
0
static int8_t AllocTrigId(uint8_t pinNum)
{
    int8_t id = 0;
    while (BIT_IS_SET(trigUse, id)) {
        ++id;
    }
    if (id == MAX_TRIGGERS) {
        return AJS_IO_PIN_NO_TRIGGER;
    } else {
        BIT_SET(trigUse, id);
        pinIdToSource[id] = pinNum;
        return id;
    }
}
Exemple #20
0
int main(void){

SET_BIT(DDRC,0);
SET_BIT(DDRC,1);
CLEAR_BIT(DDRA,0);
CLEAR_BIT(DDRA,1);
CLEAR_BIT(DDRA,2);
while(1){
if (BIT_IS_SET(PINA,0)){
	SET_BIT(PORTC,0);
	CLEAR_BIT(PORTC,1);
}
else if(BIT_IS_SET(PINA,1)) {
	SET_BIT(PORTC,1);
	CLEAR_BIT(PORTC,0);
}
else if (BIT_IS_SET(PINA,2)) {
	CLEAR_BIT(PORTC,0);
	CLEAR_BIT(PORTC,1);
}

}
}
//* ************************************************************************************************
/// @fn			menumode_handler(void)
/// @brief		Menu mode routine
/// @return		none
//* ************************************************************************************************
static void menumode_handler(void)
{
	// STAR button activates the selected item
	if (BIT_IS_SET(ports_pressed_btns, PORTS_BTN_STAR))
	{
		// Exit mode
		menumode.enabled = 0;
	
		// Clear both lines but keep symbols !
		display_clear(0, 1);
		display_clear(0, 2);
		
		// Turn off up/down symbols
		display_symbol(0, LCD_SYMB_ARROW_UP, SEG_OFF);
		display_symbol(0, LCD_SYMB_ARROW_DOWN, SEG_OFF);
		
		// Stop blinking name of current selected module
		display_chars(0, LCD_SEG_L2_4_0, NULL, BLINK_OFF);
		
		// Activate item
		if (menumode.item->activate_fn)
			menumode.item->activate_fn();
		
	}
	// UP button selects/shows the next item
	else if (BIT_IS_SET(ports_pressed_btns, PORTS_BTN_UP))
	{
		menumode.item = menumode.item->next;
		display_chars(0, LCD_SEG_L2_4_0, menumode.item->name, SEG_SET);
	}
	// UP button selects/shows the previous item
	else if (BIT_IS_SET(ports_pressed_btns, PORTS_BTN_DOWN))
	{
		menumode.item = menumode.item->prev;
		display_chars(0, LCD_SEG_L2_4_0, menumode.item->name, SEG_SET);
	}
}
Exemple #22
0
/*
 * icp_adf_subsystemRegister
 * Register a new subsystem.
 */
CpaStatus
icp_adf_subsystemRegister(subservice_registation_handle_t* subsystem_hdl)
{
    CpaStatus status = CPA_STATUS_FAIL;
    icp_accel_dev_t *accel_dev=NULL;
    ICP_CHECK_FOR_NULL_PARAM(subsystem_hdl);

    ADF_DEBUG("Registering subsystem %s\n", subsystem_hdl->subsystem_name);

    status = adf_subsystemAdd(subsystem_hdl);
    if (CPA_STATUS_SUCCESS != status)
    {
        ADF_ERROR("Failed to add subsystem to the list.\n");
        return CPA_STATUS_FAIL;
    }
    status = adf_devmgrGetAccelHead(&accel_dev);
    if(CPA_STATUS_SUCCESS != status)
    {
        ADF_ERROR("Failed to get accel head.\n");
        adf_subsystemRemove(subsystem_hdl);
        return CPA_STATUS_SUCCESS;
    }
    /* Loop over each accel_dev in the system and clear the status
     * bits for each one. */
    while(accel_dev)
    {
        /* Initialising the masks during the subsystem registration
         * and prior to init. */
        CLEAR_STATUS_BIT(subsystem_hdl->subsystemStatus
                         [accel_dev->accelId].subsystemInitBit, 0);
        CLEAR_STATUS_BIT(subsystem_hdl->subsystemStatus
                         [accel_dev->accelId].subsystemStartBit, 0);

        /* Send init and start events to subsystem when ADF is started */
        if( BIT_IS_SET(accel_dev->adfSubsystemStatus,
                                        ADF_STATUS_SYSTEM_STARTED))
        {
            status = do_catchup(accel_dev, subsystem_hdl);
            if( CPA_STATUS_SUCCESS != status )
            {
                ADF_ERROR("Failed to start subservice %s for device %d.\n",
                          subsystem_hdl->subsystem_name,
                          accel_dev->accelId );
            }
        }
        accel_dev = accel_dev->pNext;
    }
    return status;
}
Exemple #23
0
	/*
	 * Insert leaf into the tree.
	 */
	void
	insert_leaf(const entry *e, int diff)
	{
		auto new_node = nvobj::make_persistent<node>();
		new_node->diff = diff;

		int d = BIT_IS_SET(e->key, new_node->diff);
		new_node->entries[d] = nvobj::make_persistent<entry>(*e);

		auto dest_entry = root;
		while (dest_entry->inode != nullptr) {
			auto n = dest_entry->inode;
			if (n->diff < new_node->diff)
				break;

			dest_entry = n->entries[BIT_IS_SET(e->key, n->diff)];
		}

		new_node->entries[!d] =
			nvobj::make_persistent<entry>(*dest_entry);
		dest_entry->key = 0;
		dest_entry->inode = new_node;
		dest_entry->value = nullptr;
	}
Exemple #24
0
BYTE VerifyStartUserProgram( void )
{
  BYTE bStatus;

  e2prom_read( (BYTE*)&bStatus, BOOT_LDR_ST_ADDR, sizeof( BYTE ));

  if ( BIT_IS_SET( bStatus, BOOT_LOADER_CHANGE_FW ) )
  {
    return TRUE;
  }
  else
  {
    return FALSE;
  }
}
Exemple #25
0
/*
 * check out a pointer to see if we were looking for it.
 * may not return.
 */
LOCAL	void	check_var(const char * file, const int line, char * pnt)
{
  static int	addc = 0;
  
  if (malloc_address == NULL || pnt != malloc_address)
    return;
  
  if (++addc < address_count)
    return;
  
  if (BIT_IS_SET(_malloc_debug, DEBUG_LOG_BAD_POINTER))
    _malloc_message("found address '%#lx' after %d pass%s from '%s:%u'",
		    pnt, addc, (addc == 1 ? "" : "es"), file, line);
  malloc_errno = MALLOC_POINTER_FOUND;
  _malloc_perror("check_var");
}
int32_t AJS_TargetIO_PinTrigId(uint32_t* level)
{
    if (trigSet == 0) {
        return AJS_IO_PIN_NO_TRIGGER;
    } else {
        /*
         * This is static so triggers are returned round-robin to ensure fairness
         */
        static uint32_t id = 0;
        while (!BIT_IS_SET(trigSet, id % MAX_TRIGGERS)) {
            ++id;
        }
        BIT_CLR(trigSet, id % MAX_TRIGGERS);
        return (id % MAX_TRIGGERS);
    }
}
Exemple #27
0
/*
 * int mpool_close
 *
 * DESCRIPTION:
 *
 * Close/free a memory allocation pool previously opened with
 * mpool_open.
 *
 * RETURNS:
 *
 * Success - MPOOL_ERROR_NONE
 *
 * Failure - Mpool error code
 *
 * ARGUMENTS:
 *
 * mp_p <-> Pointer to our memory pool.
 */
int mpool_close(mpool_t * mp_p)
{
	mpool_block_t *block_p, *next_p;
	void *addr;
	unsigned long size;
	int ret, final = MPOOL_ERROR_NONE;

	/* special case, just return no-error */
	if (mp_p == NULL) {
		return MPOOL_ERROR_ARG_NULL;
	}
	if (mp_p->mp_magic != MPOOL_MAGIC) {
		return MPOOL_ERROR_PNT;
	}
	if (mp_p->mp_magic2 != MPOOL_MAGIC) {
		return MPOOL_ERROR_POOL_OVER;
	}

	if (mp_p->mp_log_func != NULL) {
		mp_p->mp_log_func(mp_p, MPOOL_FUNC_CLOSE, 0, 0, NULL, NULL, 0);
	}

	/*
	 * NOTE: if we are HEAVY_PACKING then the 1st block with the mpool
	 * header is not on the linked list.
	 */

	/* free/invalidate the blocks */
	for (block_p = mp_p->mp_first_p; block_p != NULL; block_p = next_p) {
		if (block_p->mb_magic != BLOCK_MAGIC
		    || block_p->mb_magic2 != BLOCK_MAGIC) {
			final = MPOOL_ERROR_POOL_OVER;
			break;
		}
		block_p->mb_magic = 0;
		block_p->mb_magic2 = 0;
		/* record the next pointer because it might be invalidated below */
		next_p = block_p->mb_next_p;
		ret =
		    free_pages(block_p,
			       (char *)block_p->mb_bounds_p - (char *)block_p,
			       BIT_IS_SET(mp_p->mp_flags, MPOOL_FLAG_USE_SBRK));
		if (ret != MPOOL_ERROR_NONE) {
			final = ret;
		}
Exemple #28
0
/*
 * Dummy function for checking strlen's arguments.
 */
static	int	loc_strlen(const char *file, const int line,
			   const char *func, const char *str)
{
  int		len = 0;
  const	char	*str_p;
  
  if (BIT_IS_SET(_dmalloc_flags, DEBUG_CHECK_FUNCS)) {
    if (! dmalloc_verify_pnt(file, line, func, str, 0 /* not exact */, -1)) {
      dmalloc_message("bad pointer argument found in %s", func);
    }
  }
  
  for (str_p = str; *str_p != '\0'; str_p++) {
    len++;
  }
  
  return len;
}
int main(void) {
	
	DDRD &= ~(1 << PD2);		// clear DDRD bit 2, sets PD2 (pin 4) for input
	
	PORTD |= (1 << PD2);		// set PORTD bit 2, sets PD2 (pin 4) internal pull-up resistor
	
	DDRC |= (1 << PC5);			// set DDRC bit 5, sets PC5 (pin 28) for output
	
	while (1) {					// begin infinite loop
		if(BIT_IS_CLEAR(PIND, PD2)) {			// check if PIND bit 2 is clear, which indicates switch is pressed (logic low)
			PORTC |= (1 << PC5);					// set PORTC bit 5 to set PC5 (pin 28) high
		} else if(BIT_IS_SET(PIND, PD2)) {		// check if PIND bit 2 is set, which indicates switch is not pressed (logic low)
			PORTC &= ~(1 << PC5);					// clear PORTC, bit 5 to set PC5 (pin 28) low
		} else {
			// ideally should never get here, but may occasionally due to timing
		}
	}
	return(0);					// should never get here, this is to prevent a compiler warning
}
Exemple #30
0
	/*
	 * Fetch leaf from the tree.
	 */
	nvobj::persistent_ptr<entry>
	get_leaf(key_type key, nvobj::persistent_ptr<entry> *parent)
	{
		auto n = root;
		nvobj::persistent_ptr<entry> p = nullptr;

		while (n->inode != nullptr) {
			p = n;
			n = n->inode->entries[BIT_IS_SET(key, n->inode->diff)];
		}

		if (n->key == key) {
			if (parent)
				*parent = p;

			return n;
		}

		return nullptr;
	}