#include <stdint.h>
#include "types.h"

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Data Structures
struct	time_stamp

Macros
#define	MAC_ADDRESS_LENGTH 6
	MAC address length in bytes. More...

Functions
int	is_current (int index)

int	is_low_current (int index)

int	count_channels (int channels[NUM_CHANNELS])

int	read_status (struct rl_status *status)

int	write_status (struct rl_status *status)

int	ceil_div (int n, int d)

void	sig_handler (int signo)

int	read_file_value (char filename[])

void	create_time_stamp (struct time_stamp time_real, struct time_stamp time_monotonic)

void	get_mac_addr (uint8_t mac_address[MAC_ADDRESS_LENGTH])

Macro Definition Documentation

#define MAC_ADDRESS_LENGTH 6

MAC address length in bytes.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition at line 39 of file util.h.

Referenced by file_store_header_csv(), and get_mac_addr().

Function Documentation

int ceil_div	(	int	n,
		int	d
	)

Integer division with ceiling.

Parameters

n	Numerator
d	Denominator

Returns: Result

Definition at line 163 of file util.c.

Referenced by pru_sample().

int count_channels ( int channels[NUM_CHANNELS] )

Counts the number of channels sampled.

Parameters

channels Channel array.

Returns: the number of sampled channels.

Definition at line 79 of file util.c.

References CHANNEL_ENABLED, and NUM_CHANNELS.

Referenced by file_handle_data(), file_setup_lead_in(), meter_print_buffer(), pru_sample(), and web_handle_data().

void create_time_stamp	(	struct time_stamp *	timestamp_realtime,
		struct time_stamp *	timestamp_monotonic
	)

Create time stamps (real and monotonic)

Parameters

timestamp_realtime	Pointer to time_stamp struct
timestamp_monotonic	Pointer to time_stamp struct

Definition at line 222 of file util.c.

References ERROR, time_stamp::nsec, rl_log(), and time_stamp::sec.

Referenced by ambient_setup_lead_in(), file_setup_lead_in(), and pru_sample().

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void get_mac_addr ( uint8_t mac_address[MAC_ADDRESS_LENGTH] )

Get MAC address of device

Parameters

mac_address Empty array with size MAC_ADDRESS_LENGTH

Definition at line 247 of file util.c.

References MAC_ADDRESS_FILE, and MAC_ADDRESS_LENGTH.

Referenced by ambient_setup_lead_in(), and file_setup_lead_in().

int is_current ( int index )

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Checks if channel is a current channel.

Parameters

index Index of channel in array.