60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
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* Copyright (c) 2020 Institute of Parallel And Distributed Systems (IPADS), Shanghai Jiao Tong University (SJTU)
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* OS-Lab-2020 (i.e., ChCore) is licensed under the Mulan PSL v1.
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* You can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 for more details.
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*/
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#pragma once
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#include <common/types.h>
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#include <common/errno.h>
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#include <common/list.h>
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struct object {
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u64 type;
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u64 size;
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/* Link all slots point to this object */
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struct list_head copies_head;
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/*
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* refcount is added when a slot points to it and when get_object is
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* called. Object is freed when it reaches 0.
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*/
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u64 refcount;
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u64 opaque[];
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};
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enum object_type {
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TYPE_PROCESS = 0,
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TYPE_THREAD,
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TYPE_CONNECTION,
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TYPE_NOTIFICATION,
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TYPE_PMO,
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TYPE_VMSPACE,
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TYPE_NR,
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};
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struct process;
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typedef void (*obj_deinit_func) (void *);
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extern const obj_deinit_func obj_deinit_tbl[TYPE_NR];
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void *obj_get(struct process *process, int slot_id, int type);
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void obj_put(void *obj);
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void *obj_alloc(u64 type, u64 size);
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void obj_free(void *obj);
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int cap_alloc(struct process *process, void *obj, u64 rights);
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int cap_free(struct process *process, int slot_id);
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int cap_copy(struct process *src_process, struct process *dest_process,
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int src_slot_id, bool new_rights_valid, u64 new_rights);
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int cap_copy_local(struct process *process, int src_slot_id, u64 new_rights);
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int cap_move(struct process *src_process, struct process *dest_process,
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int src_slot_id, bool new_rights_valid, u64 new_rights);
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int cap_revoke(struct process *process, int slot_id);
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