61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/*
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* Copyright (c) 2014 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* sortix/kernel/ptable.h
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* Process table.
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*/
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#ifndef _INCLUDE_SORTIX_KERNEL_PTABLE_H
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#define _INCLUDE_SORTIX_KERNEL_PTABLE_H
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#include <sys/types.h>
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#include <sortix/kernel/kthread.h>
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#include <sortix/kernel/refcount.h>
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namespace Sortix {
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class Process;
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struct ptable_entry
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{
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pid_t pid;
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Process* process;
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};
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class ProcessTable : public Refcountable
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{
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public:
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ProcessTable();
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virtual ~ProcessTable();
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Process* Get(pid_t pid);
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pid_t Allocate(Process* process);
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void Free(pid_t pid);
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pid_t Prev(pid_t pid);
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pid_t Next(pid_t pid);
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private:
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kthread_mutex_t ptablelock;
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pid_t next_pid;
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struct ptable_entry* entries;
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size_t entries_used;
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size_t entries_length;
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};
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} // namespace Sortix
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#endif
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