#include <libgen.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/statvfs.h>
#include "rl_lib.h"
#include "rl_util.h"
#include "sem.h"
#include "web.h"

Include dependency graph for rl_server.c:

Macros
#define	ARG_COUNT 4
	Number of input arguments required. More...

#define	MAX_STRING_LENGTH 150
	Maximum string line length. More...

#define	MAX_STRING_VALUE 20
	Maximum string value length. More...

#define	TIME_MARGIN 10
	Time margin for buffer number (in ms) More...

Functions
int64_t	get_free_space (char *path)

void	print_json_32 (int32_t data[], int length)

void	print_json_64 (int64_t data[], int length)

void	print_status (void)

void	print_data (void)

int	main (int argc, char *argv[])

Variables
int	sem_id
	ID of semaphore set. More...

struct web_shm *	web_data
	Pointer to shared memory data. More...

uint32_t	id
	Client request id. More...

uint8_t	get_data
	1: data requested, 0: no data requested More...

uint32_t	t_scale
	Requested time scale. More...

int64_t	last_time
	Last client time stamp. More...

int64_t	curr_time
	Time stamp of last buffer stored to shared memory. More...

int8_t	num_channels
	Number of channels sampled. More...

struct rl_status	status
	Current status of RocketLogger. More...

int	buffer_sizes [WEB_RING_BUFFER_COUNT]
	Buffer sizes for different time scales. More...

Macro Definition Documentation

#define ARG_COUNT 4

Number of input arguments required.

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 43 of file rl_server.c.

Referenced by main().

#define MAX_STRING_LENGTH 150

Maximum string line length.

Definition at line 45 of file rl_server.c.

Referenced by print_json_32(), and print_json_64().

#define MAX_STRING_VALUE 20

Maximum string value length.

Definition at line 47 of file rl_server.c.

Referenced by print_json_32(), and print_json_64().

#define TIME_MARGIN 10

Time margin for buffer number (in ms)

Definition at line 49 of file rl_server.c.

Referenced by print_data().

Function Documentation

int64_t get_free_space ( char * path )

Get free disk space in a directory

Parameters

path	Path to selected directory

Returns: Free disk space in bytes

Definition at line 83 of file rl_server.c.

Referenced by print_status().

int main	(	int	argc,
		char *	argv[]
	)

RocketLogger server program. Returns status and current sampling data (if available) when running and default configuration otherwise

Parameters

argc	Number of input arguments
argv	Input argument string, consists of: Request ID (can be used for client synchronisation) Data requested (1 for yes, 0 for no) Requested time scale (0: 100 samples/s, 1: 10 samples/s, 2: 1 sample/s) Time stamp in UNIX time (UTC) of most recent data available at web client