79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
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/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with Sortix. If not, see <http://www.gnu.org/licenses/>.
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process.cpp
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Describes a process belonging to a subsystem.
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******************************************************************************/
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#include "platform.h"
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#include <libmaxsi/memory.h>
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#include "process.h"
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#include "memorymanagement.h"
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namespace Sortix
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{
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bool ProcessSegment::Intersects(ProcessSegment* segments)
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{
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for ( ProcessSegment* tmp = segments; tmp != NULL; tmp = tmp->next )
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{
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if ( tmp->position < position + size &&
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position < tmp->position + tmp->size )
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{
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return true;
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}
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}
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if ( next ) { return next->Intersects(segments); }
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return false;
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}
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Process::Process(addr_t addrspace)
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{
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_addrspace = addrspace;
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_endcodesection = 0x400000UL;
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segments = NULL;
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}
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Process::~Process()
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{
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ResetAddressSpace();
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// Avoid memory leaks.
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ASSERT(segments == NULL);
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// TODO: Delete address space!
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}
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void Process::ResetAddressSpace()
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{
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ProcessSegment* tmp = segments;
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while ( tmp != NULL )
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{
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VirtualMemory::UnmapRangeUser(tmp->position, tmp->size);
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ProcessSegment* todelete = tmp;
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tmp = tmp->next;
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delete todelete;
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}
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segments = NULL;
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}
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}
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