49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*-
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* Copyright (c) 2018 VMware, Inc. All Rights Reserved.
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*
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* SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0)
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*
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* $FreeBSD$
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*/
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/* Hash table for use in the APIs. */
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#ifndef _VMCI_HASHTABLE_H_
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#define _VMCI_HASHTABLE_H_
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#include "vmci_defs.h"
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#include "vmci_kernel_if.h"
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struct vmci_hash_entry {
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struct vmci_handle handle;
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int ref_count;
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struct vmci_hash_entry *next;
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};
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struct vmci_hashtable {
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struct vmci_hash_entry **entries;
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/* Number of buckets in above array. */
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int size;
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vmci_lock lock;
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};
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struct vmci_hashtable *vmci_hashtable_create(int size);
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void vmci_hashtable_destroy(struct vmci_hashtable *table);
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void vmci_hashtable_init_entry(struct vmci_hash_entry *entry,
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struct vmci_handle handle);
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int vmci_hashtable_add_entry(struct vmci_hashtable *table,
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struct vmci_hash_entry *entry);
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int vmci_hashtable_remove_entry(struct vmci_hashtable *table,
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struct vmci_hash_entry *entry);
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struct vmci_hash_entry *vmci_hashtable_get_entry(struct vmci_hashtable *table,
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struct vmci_handle handle);
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void vmci_hashtable_hold_entry(struct vmci_hashtable *table,
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struct vmci_hash_entry *entry);
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int vmci_hashtable_release_entry(struct vmci_hashtable *table,
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struct vmci_hash_entry *entry);
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bool vmci_hashtable_entry_exists(struct vmci_hashtable *table,
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struct vmci_handle handle);
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void vmci_hashtable_sync(struct vmci_hashtable *table);
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#endif /* !_VMCI_HASHTABLE_H_ */
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