interface.c File Reference

Scheduler interface operations. More...

#include <agent.h>
#include <database.h>
#include <event.h>
#include <interface.h>
#include <job.h>
#include <logging.h>
#include <scheduler.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <glib.h>
#include <gio/gio.h>

Include dependency graph for interface.c:

Go to the source code of this file.

Classes
struct	interface_connection

Macros
#define	FIELD_WIDTH   10
#define	BUFFER_SIZE   1024
#define	netw   g_output_stream_write
#define	PROXY_PROTOCOL   "socks5"
#define	PROXY_DEFAULT_PORT   1080

Typedefs
typedef struct interface_connection	interface_connection

Functions
static interface_connection *	interface_conn_init (GSocketConnection *conn, GThreadPool *threads)
static void	interface_conn_destroy (interface_connection *inter)
	Free the memory associated with an interface connection. More...
void	interface_thread (interface_connection *conn, scheduler_t *scheduler)
	Function that will run the thread associated with a particular interface instance. More...
void *	interface_listen_thread (scheduler_t *scheduler)
	Function that will listen for new connections to the server sockets. More...
void	interface_init (scheduler_t *scheduler)
	Create the interface thread and thread pool that handle UI connections. More...
void	interface_destroy (scheduler_t *scheduler)
	Closes the server socket and thread pool that service UI connections. More...

Detailed Description

Scheduler interface operations.

Definition in file interface.c.

Typedef Documentation

interface_connection

typedef struct interface_connection interface_connection

Data needed to manage the connection between the scheduler any type of interface. This includes the thread, the socket and the GInputStream and GOutputStream

Function Documentation

interface_conn_destroy()

static void interface_conn_destroy ( interface_connection *  inter )

static

Free the memory associated with an interface connection.

Note

This will block until the thread associated with the interface has closed correctly.

Parameters

inter

the interface_connection that should be freed

Definition at line 92 of file interface.c.

interface_conn_init()

static interface_connection* interface_conn_init ( GSocketConnection *  conn, GThreadPool *  threads  )

static

Given a new socket, this will create the interface connection structure.

Parameters

conn	The socket that this interface is connected to
threads	Thread pool handling sockets

Returns

the newly allocated and populated interface connection

Definition at line 71 of file interface.c.

interface_destroy()

void interface_destroy

(

scheduler_t *

scheduler

)

Closes the server socket and thread pool that service UI connections.

Note

If interface_destroy() is called before interface_init(), then it will be a no-op.

Definition at line 588 of file interface.c.

interface_init()

void interface_init

(

scheduler_t *

scheduler

)

Create the interface thread and thread pool that handle UI connections.

The GUI and the CLI use a socket connection to communicate with the scheduler. This function creates the socket connection as well as everything needed to handle incoming connections and messages.

Note

If interface_init() is called multiple times without a call to interface_destroy(), it will become a no-op after the second call

Definition at line 554 of file interface.c.

interface_listen_thread()

void* interface_listen_thread

(

scheduler_t *

scheduler

)

Function that will listen for new connections to the server sockets.

This creates a g_socket_listener and will loop waiting for new connections until the scheduler is closed.

Parameters

scheduler

Relevant scheduler structure

Returns

(void*)0 on failure, (void*)1 on success

Definition at line 494 of file interface.c.

interface_thread()

void interface_thread	(	interface_connection *	conn,
		scheduler_t *	scheduler
	)

Function that will run the thread associated with a particular interface instance.

Since multiple different command line a graphical user interfaces can exists simultaneously, this allows the scheduler to quickly perform any requests.

Handle commands:

Command	Description
exit	Close connection with scheduler
kill	Kill a particular job
load	Get the host status
close	Shutdown the scheduler
pause	Pause a job that is currently running
reload	Reload configuration information
status	Request status for scheduler or job
restart	Restart a paused job
verbose	Change verbose level for scheduler or job
priority	Change the priority of job
database	Check the database job queue

Parameters

conn	Pointer to the interface_connection structure
scheduler	Pointer to the relevant scheduler structure

Returns

not currently used

Definition at line 126 of file interface.c.