client_common.c File Reference

Common functions of para_client and para_audiod. More...

#include <netinet/in.h>
#include <sys/socket.h>
#include <regex.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <sys/un.h>
#include <netdb.h>
#include <lopsub.h>
#include "client.lsg.h"
#include "para.h"
#include "error.h"
#include "list.h"
#include "lsu.h"
#include "sched.h"
#include "crypt.h"
#include "net.h"
#include "fd.h"
#include "sideband.h"
#include "string.h"
#include "client.h"
#include "buffer_tree.h"
#include "version.h"

Macros
#define	CLIENT_BUFSIZE   4000
	The size of the receiving buffer. More...

Functions
void	client_close (struct client_task *ct)
	Close the connection to para_server and free all resources. More...
int	client_connect (struct client_task *ct, struct sched *s, struct btr_node *parent, struct btr_node *child)
	Connect to para_server and register the client task. More...
int	client_parse_config (int argc, char *argv[], struct client_task **ct_ptr, int *loglevel)
	Parse a client configuration. More...
int	client_open (int argc, char *argv[], struct client_task **ct_ptr, int *loglevel, struct btr_node *parent, struct btr_node *child, struct sched *sched)
	Parse the client configuration and open a connection to para_server. More...

Detailed Description

Common functions of para_client and para_audiod.

Macro Definition Documentation

CLIENT_BUFSIZE

#define CLIENT_BUFSIZE   4000

The size of the receiving buffer.

Function Documentation

client_close()

void client_close

(

struct client_task *

ct

)

Close the connection to para_server and free all resources.

Parameters

ct	Pointer to the client data.

See also

client_open().

client_connect()

int client_connect	(	struct client_task *	ct,
		struct sched *	s,
		struct btr_node *	parent,
		struct btr_node *	child
	)

Connect to para_server and register the client task.

Parameters

ct	The initialized client task structure.
s	The scheduler instance to register the client task to.
parent	The parent node of the client btr node.
child	The child node of the client node.

The client task structure given by ct must be allocated and initialized by client_parse_config() before this function is called.

Returns

Standard.

client_parse_config()

int client_parse_config	(	int	argc,
		char *	argv[],
		struct client_task **	ct_ptr,
		int *	loglevel
	)

Parse a client configuration.

Parameters

argc	Usual argument count.
argv	Usual argument vector.
ct_ptr	Filled in by this function.
loglevel	If not NULL, the number of the loglevel is stored here.

This checks the command line options given by argc and argv, sets default values for the user name and the name of the rsa key file and reads further options from the config file.

Upon successful return, ct_ptr points to a dynamically allocated and initialized client task struct.

Returns

The number of non-option arguments in argc/argv on success, negative on errors.

Referenced by main().

client_open()

int client_open	(	int	argc,
		char *	argv[],
		struct client_task **	ct_ptr,
		int *	loglevel,
		struct btr_node *	parent,
		struct btr_node *	child,
		struct sched *	sched
	)

Parse the client configuration and open a connection to para_server.

Parameters

argc	See client_parse_config.
argv	See client_parse_config.
ct_ptr	See client_parse_config.
loglevel	See client_parse_config.
parent	See client_connect().
child	See client_connect().
sched	See client_connect().

This function combines client_parse_config() and client_connect(). It is considered a syntax error if no command was given, i.e. if the number of non-option arguments is zero.

Returns

Standard.