server.h File Reference

Library for opening a TCP server, receiving data and sending message to monitor. More...

#include "image.h"

Include dependency graph for server.h:

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Macros
#define	DEFAULT_SERVER_PORT   2323

Functions
int	openServer (int port)
	Open server port, connect and listen to given port. More...
int	closeServer ()
	Close server. More...
int	acceptClient ()
	Wait for a client to connect. More...
int	sendDataToServer (char *data, int length)
	Send given data to monitor. More...
int	sendDataToServerForClient (int client, char *data, int length)
	Send given data to monitor, using specific client ID. More...
int	receiveDataFromServer (char *data, int size)
	Read data from monitor. More...
int	receiveDataFromServerFromClient (int client, char *data, int size)
	Read data from monitor, using specific client ID. More...
int	sendImage (Jpg *image)
	Send image to monitor using default client ID. More...

Detailed Description

Library for opening a TCP server, receiving data and sending message to monitor.

Author

PE.Hladik

Version

1.0

Date

06/06/2017

Definition in file server.h.

Macro Definition Documentation

DEFAULT_SERVER_PORT

#define DEFAULT_SERVER_PORT   2323

Definition at line 30 of file server.h.

Function Documentation

acceptClient()

int acceptClient

(

)

Wait for a client to connect.

Returns

Return client Id or -1 if it failed

closeServer()

int closeServer

(

)

Close server.

Returns

-1 if closing failed , 0 otherwise

openServer()

int openServer

(

int

port

)

Open server port, connect and listen to given port.

Parameters

port	A valid port number (1024 - 65535)

Returns

-1 if opening failed or the socket number

receiveDataFromServer()

int receiveDataFromServer	(	char *	data,
		int	size
	)

Read data from monitor.

Read, at most, size data from monitor. Data must be a valid pointer to a buffer large enough.

Parameters

data	A valid pointer to a buffer
size	Amount of data to read

Returns

Return amount of data really received. 0 if communication is broken

receiveDataFromServerFromClient()

int receiveDataFromServerFromClient	(	int	client,
		char *	data,
		int	size
	)

Read data from monitor, using specific client ID.

Read, at most, size data from monitor. Data must be a valid pointer to a buffer large enough.

Parameters

client	Client Id to receive from
data	A valid pointer to a buffer
size	Amount of data to read

Returns

Return amount of data really received. 0 if communication is broken

sendDataToServer()

int sendDataToServer	(	char *	data,
		int	length
	)

Send given data to monitor.

Send given data to monitor using default client ID

Parameters

data	A valid pointer to a buffer
length	Amount of data to send

Returns

Return amount of data really written. 0 if communication is broken

sendDataToServerForClient()

int sendDataToServerForClient	(	int	client,
		char *	data,
		int	length
	)

Send given data to monitor, using specific client ID.

Send given data to monitor using given client ID.

Parameters

client	Client Id to send data to
data	A valid pointer to a buffer
length	Amount of data to send

Returns

Return amount of data really written. 0 if communication is broken

sendImage()

int sendImage

(

Jpg *

image

)

Send image to monitor using default client ID.

Convert image to raw data, and add correct header before sending to monitor

Parameters

image

An image object after compression

Returns

Return amount of data really received. 0 if communication is broken