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Diffstat (limited to 'src/charon/processing/job_queue.c')
-rw-r--r-- | src/charon/processing/job_queue.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/src/charon/processing/job_queue.c b/src/charon/processing/job_queue.c deleted file mode 100644 index 2310ca6ff..000000000 --- a/src/charon/processing/job_queue.c +++ /dev/null @@ -1,139 +0,0 @@ -/** - * @file job_queue.c - * - * @brief Implementation of job_queue_t - * - */ - -/* - * Copyright (C) 2005-2006 Martin Willi - * Copyright (C) 2005 Jan Hutter - * Hochschule fuer Technik Rapperswil - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - */ - -#include <stdlib.h> -#include <pthread.h> - -#include "job_queue.h" - -#include <utils/linked_list.h> - - -typedef struct private_job_queue_t private_job_queue_t; - -/** - * @brief Private Variables and Functions of job_queue class - * - */ -struct private_job_queue_t { - - /** - * public members - */ - job_queue_t public; - - /** - * The jobs are stored in a linked list - */ - linked_list_t *list; - - /** - * access to linked_list is locked through this mutex - */ - pthread_mutex_t mutex; - - /** - * If the queue is empty a thread has to wait - * This condvar is used to wake up such a thread - */ - pthread_cond_t condvar; -}; - - -/** - * implements job_queue_t.get_count - */ -static int get_count(private_job_queue_t *this) -{ - int count; - pthread_mutex_lock(&(this->mutex)); - count = this->list->get_count(this->list); - pthread_mutex_unlock(&(this->mutex)); - return count; -} - -/** - * implements job_queue_t.get - */ -static job_t *get(private_job_queue_t *this) -{ - int oldstate; - job_t *job; - pthread_mutex_lock(&(this->mutex)); - /* go to wait while no jobs available */ - while(this->list->get_count(this->list) == 0) - { - /* add mutex unlock handler for cancellation, enable cancellation */ - pthread_cleanup_push((void(*)(void*))pthread_mutex_unlock, (void*)&(this->mutex)); - pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &oldstate); - - pthread_cond_wait( &(this->condvar), &(this->mutex)); - - /* reset cancellation, remove mutex-unlock handler (without executing) */ - pthread_setcancelstate(oldstate, NULL); - pthread_cleanup_pop(0); - } - this->list->remove_first(this->list, (void **)&job); - pthread_mutex_unlock(&(this->mutex)); - return job; -} - -/** - * implements function job_queue_t.add - */ -static void add(private_job_queue_t *this, job_t *job) -{ - pthread_mutex_lock(&(this->mutex)); - this->list->insert_last(this->list,job); - pthread_cond_signal( &(this->condvar)); - pthread_mutex_unlock(&(this->mutex)); -} - -/** - * implements job_queue_t.destroy - */ -static void job_queue_destroy (private_job_queue_t *this) -{ - this->list->destroy_offset(this->list, offsetof(job_t, destroy)); - free(this); -} - -/* - * - * Documented in header - */ -job_queue_t *job_queue_create(void) -{ - private_job_queue_t *this = malloc_thing(private_job_queue_t); - - this->public.get_count = (int(*)(job_queue_t*))get_count; - this->public.get = (job_t*(*)(job_queue_t*))get; - this->public.add = (void(*)(job_queue_t*, job_t*))add; - this->public.destroy = (void(*)(job_queue_t*))job_queue_destroy; - - this->list = linked_list_create(); - pthread_mutex_init(&(this->mutex), NULL); - pthread_cond_init(&(this->condvar), NULL); - - return (&this->public); -} |