879fabdb1d
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2685 a1c6a512-1295-4272-9138-f99709370657
81 lines
No EOL
1.9 KiB
C
81 lines
No EOL
1.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Felix Arends
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <windows.h>
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#include "uisw32.h"
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#include "kernel.h"
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#include "thread-win32.h"
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#include "thread.h"
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void sleep(int ticks)
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{
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Sleep (1000 / HZ * ticks);
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}
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void yield (void)
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{
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Sleep (1); /* prevent busy loop */
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PostThreadMessage (GetWindowThreadProcessId (hGUIWnd,NULL), TM_YIELD, 0, 0);
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}
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void queue_init(struct event_queue *q)
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{
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q->read = 0;
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q->write = 0;
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}
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void queue_wait(struct event_queue *q, struct event *ev)
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{
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while(q->read == q->write)
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{
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switch_thread();
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}
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*ev = q->events[(q->read++) & QUEUE_LENGTH_MASK];
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}
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void queue_post(struct event_queue *q, int id, void *data)
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{
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int wr;
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int oldlevel;
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oldlevel = set_irq_level(15);
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wr = (q->write++) & QUEUE_LENGTH_MASK;
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q->events[wr].id = id;
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q->events[wr].data = data;
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set_irq_level(oldlevel);
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}
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bool queue_empty(struct event_queue* q)
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{
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return ( q->read == q->write );
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}
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void switch_thread (void)
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{
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yield ();
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}
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int set_irq_level (int level)
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{
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static int _lv = 0;
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return (_lv = level);
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} |