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