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139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
/**
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* @file job_queue.h
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*
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* @brief Job-Queue based on linked_list_t
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef JOB_QUEUE_H_
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#define JOB_QUEUE_H_
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#include "linked_list.h"
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/**
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* Type of Jobs
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*/
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typedef enum job_type_e job_type_t;
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enum job_type_e{
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/**
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* Job is to process an incoming IKEv2-Message
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*/
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INCOMING_PACKET,
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/**
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* Job is to retransmit an IKEv2-Message
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*/
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RETRANSMIT_REQUEST,
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/**
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* Job is to establish an ike sa as initiator
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*/
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ESTABLISH_IKE_SA
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};
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/**
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* @brief Job like it is represented in the job queue
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*/
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typedef struct job_s job_t;
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struct job_s{
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job_type_t type;
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/**
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* Every job has its assigned_data
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*/
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void * assigned_data;
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/**
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* @brief Destroys a job_t object
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*
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* @param job_t calling object
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* @returns SUCCESS if succeeded, FAILED otherwise
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*/
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status_t (*destroy) (job_t *job);
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};
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/**
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* @brief Creates a job of specific type
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*
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* @param type type of the job
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* @param assigned_data value to assign to the job
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*
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* @return job_t job object
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*/
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job_t *job_create(job_type_t type, void *assigned_data);
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/**
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* @brief Job-Queue
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*/
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typedef struct job_queue_s job_queue_t;
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struct job_queue_s {
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/**
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* @brief Returns number of jobs in queue
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*
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* @param job_queue_t calling object
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* @param count integer pointer to store the job count in
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* @returns SUCCESS if succeeded, FAILED otherwise
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*/
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status_t (*get_count) (job_queue_t *job_queue, int *count);
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/**
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* @brief Get the next job from the queue
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*
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* If the queue is empty, this function blocks until job can be returned.
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*
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* After using, the returned job has to get destroyed.
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*
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* @param job_queue_t calling object
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* @param job pointer to a job pointer where to job is returned to
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* @returns SUCCESS if succeeded, FAILED otherwise
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*/
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status_t (*get) (job_queue_t *job_queue, job_t **job);
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/**
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* @brief Adds a job to the queue
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*
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* This function is non blocking
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*
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* @param job_queue_t calling object
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* @param job job to add to the queue (job is not copied)
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* @returns SUCCESS if succeeded, FAILED otherwise
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*/
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status_t (*add) (job_queue_t *job_queue, job_t *job);
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/**
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* @brief Destroys a job_queue object
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*
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* @warning Has only to be called if no other thread is accessing the queue
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*
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* @param job_queue_t calling object
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* @returns SUCCESS if succeeded, FAILED otherwise
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*/
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status_t (*destroy) (job_queue_t *job_queue);
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};
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/**
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* @brief Creates a job_queue
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* *
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* @return job_queue_t empty job_queue
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*/
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job_queue_t *job_queue_create();
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#endif /*JOB_QUEUE_H_*/
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