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70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
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Copyright (C) 2014 Szilard Biro
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Copyright (C) 2018 Harry Sintonen
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include <proto/exec.h>
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#include <exec/execbase.h>
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#include "sched.h"
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#include "debug.h"
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#define PRIO_MAX 2
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#define PRIO_MIN -2
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int sched_get_priority_max(int policy)
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{
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D(bug("%s(%d)\n", __FUNCTION__, policy));
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return PRIO_MAX;
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}
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int sched_get_priority_min(int policy)
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{
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D(bug("%s(%d)\n", __FUNCTION__, policy));
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return PRIO_MIN;
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}
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int sched_yield(void)
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{
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#if defined(__MORPHOS__) || defined(__AMIGA__)
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D(bug("%s()\n", __FUNCTION__));
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// calling Permit() will trigger a reschedule
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Forbid();
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#if !defined(__MORPHOS__)
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SysBase->SysFlags |= 1<<15; // trigger rescheduling on Permit();
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#endif
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Permit();
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#else
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BYTE oldpri;
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struct Task *task;
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D(bug("%s()\n", __FUNCTION__));
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task = FindTask(NULL);
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// changing the priority will trigger a reschedule
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oldpri = SetTaskPri(task, -10);
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SetTaskPri(task, oldpri);
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#endif
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return 0;
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}
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