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/*
* VMware VMCI Driver
*
* Copyright (C) 2012 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#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_ */
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