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53 lines
1.6 KiB
53 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* VMware VMCI Driver |
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* |
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* Copyright (C) 2012 VMware, Inc. All rights reserved. |
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*/ |
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#ifndef _VMCI_HANDLE_ARRAY_H_ |
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#define _VMCI_HANDLE_ARRAY_H_ |
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#include <linux/vmw_vmci_defs.h> |
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#include <linux/limits.h> |
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#include <linux/types.h> |
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struct vmci_handle_arr { |
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u32 capacity; |
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u32 max_capacity; |
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u32 size; |
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u32 pad; |
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struct vmci_handle entries[]; |
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}; |
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#define VMCI_HANDLE_ARRAY_HEADER_SIZE \ |
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offsetof(struct vmci_handle_arr, entries) |
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/* Select a default capacity that results in a 64 byte sized array */ |
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#define VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY 6 |
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/* Make sure that the max array size can be expressed by a u32 */ |
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#define VMCI_HANDLE_ARRAY_MAX_CAPACITY \ |
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((U32_MAX - VMCI_HANDLE_ARRAY_HEADER_SIZE - 1) / \ |
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sizeof(struct vmci_handle)) |
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struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity); |
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void vmci_handle_arr_destroy(struct vmci_handle_arr *array); |
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int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr, |
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struct vmci_handle handle); |
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struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array, |
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struct vmci_handle |
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entry_handle); |
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struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array); |
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struct vmci_handle |
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vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index); |
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bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array, |
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struct vmci_handle entry_handle); |
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struct vmci_handle *vmci_handle_arr_get_handles(struct vmci_handle_arr *array); |
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static inline u32 vmci_handle_arr_get_size( |
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const struct vmci_handle_arr *array) |
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{ |
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return array->size; |
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} |
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#endif /* _VMCI_HANDLE_ARRAY_H_ */
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