#ifndef _PENDING_COMMANDS_QUEUE_H
#define _PENDING_COMMANDS_QUEUE_H

#include <linux/rwsem.h>
#include "../scanner_module.h"

/**
   \addtogroup PendingCommandsQueue
   
   PendingCommandsQueue
   
   The PendingCommandsQueue stores all
   commands generated by the ScannerUI.
   The queue is polled by the scan-job-manager
   which will then process commands.

   TODO: use generic queue-class from queue.h
   
   @{
*/

/**
   
Internal command-structure created
by the ScannerUI::scanner_ui_write, stored in the
PendingCommandsQueue and processed by the
scan-job-manager.

*/

struct command_t {
	char *name;
	unsigned int argc;
	char **argv;
};

struct pending_commands_queue_node{
	struct rw_semaphore *lock;
	struct semaphore *queue_empty;
	struct list_head list;
	struct command_t *command;
};

void pending_commands_queue_add(const char *cmd_str);
struct command_t *pending_commands_queue_head(boolean may_sleep);
void pending_commands_queue_clear(void);

void delete_command(struct command_t *this);


/** @} */

#endif