WebSVN – HelenOS – Diff – /tags/0.2.0.1/kernel/generic/src/proc/the.c


/*
 * Copyright (C) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/**
 * @file    the.c
 * @brief   THE structure functions.
 *
 * This file contains functions to manage the THE structure.
 * The THE structure exists at the base address of every kernel
 * stack and carries information about current settings
 * (e.g. current CPU, current thread, task and address space
 * and current preemption counter).
 */
 
#include <arch.h>
#include <typedefs.h>
 
 
/** Initialize THE structure
 *
 * Initialize THE structure passed as argument.
 *
 * @param the THE structure to be initialized.
 */
void the_initialize(the_t *the)
{
    the->preemption_disabled = 0;
    the->cpu = NULL;
    the->thread = NULL;
    the->task = NULL;
    the->as = NULL;
}
 
/** Copy THE structure
 *
 * Copy the source THE structure to the destination THE structure.
 *
 * @param src The source THE structure.
 * @param dst The destination THE structure.
 */
void the_copy(the_t *src, the_t *dst)
{
    *dst = *src;
}
 

Subversion Repositories HelenOS

(root)/tags/0.2.0.1/kernel/generic/src/proc/the.c – Rev 1965 → 1968

Rev 1965		Rev 1968
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/**	29	/**
30	* @file the.c	30	* @file the.c
31	* @brief THE structure functions.	31	* @brief THE structure functions.
32	*	32	*
33	* This file contains functions to manage the THE structure.	33	* This file contains functions to manage the THE structure.
34	* The THE structure exists at the base address of every kernel	34	* The THE structure exists at the base address of every kernel
35	* stack and carries information about current settings	35	* stack and carries information about current settings
36	* (e.g. current CPU, current thread, task and address space	36	* (e.g. current CPU, current thread, task and address space
37	* and current preemption counter).	37	* and current preemption counter).
38	*/	38	*/
39		39
40	#include <arch.h>	40	#include <arch.h>
41	#include <typedefs.h>	41	#include <typedefs.h>
42		42
43		43
44	/** Initialize THE structure	44	/** Initialize THE structure
45	*	45	*
46	* Initialize THE structure passed as argument.	46	* Initialize THE structure passed as argument.
47	*	47	*
48	* @param the THE structure to be initialized.	48	* @param the THE structure to be initialized.
49	*/	49	*/
50	void the_initialize(the_t *the)	50	void the_initialize(the_t *the)
51	{	51	{
52	the->preemption_disabled = 0;	52	the->preemption_disabled = 0;
53	the->cpu = NULL;	53	the->cpu = NULL;
54	the->thread = NULL;	54	the->thread = NULL;
55	the->task = NULL;	55	the->task = NULL;
56	the->as = NULL;	56	the->as = NULL;
57	}	57	}
58		58
59	/** Copy THE structure	59	/** Copy THE structure
60	*	60	*
61	* Copy the source THE structure to the destination THE structure.	61	* Copy the source THE structure to the destination THE structure.
62	*	62	*
63	* @param src The source THE structure.	63	* @param src The source THE structure.
64	* @param dst The destination THE structure.	64	* @param dst The destination THE structure.
65	*/	65	*/
66	void the_copy(the_t src, the_t dst)	66	void the_copy(the_t src, the_t dst)
67	{	67	{
68	dst = src;	68	dst = src;
69	}	69	}
70		70