1 /*
2  * VMware VMCI Driver
3  *
4  * Copyright (C) 2012 VMware, Inc. All rights reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by the
8  * Free Software Foundation version 2 and no later version.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * for more details.
14  */
15 
16 #ifndef _VMCI_HANDLE_ARRAY_H_
17 #define _VMCI_HANDLE_ARRAY_H_
18 
19 #include <linux/vmw_vmci_defs.h>
20 #include <linux/types.h>
21 
22 #define VMCI_HANDLE_ARRAY_DEFAULT_SIZE 4
23 #define VMCI_ARR_CAP_MULT 2	/* Array capacity multiplier */
24 
25 struct vmci_handle_arr {
26 	size_t capacity;
27 	size_t size;
28 	struct vmci_handle entries[];
29 };
30 
31 struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity);
32 void vmci_handle_arr_destroy(struct vmci_handle_arr *array);
33 void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
34 				  struct vmci_handle handle);
35 struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array,
36 						struct vmci_handle
37 						entry_handle);
38 struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array);
39 struct vmci_handle
40 vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index);
41 bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array,
42 			       struct vmci_handle entry_handle);
43 struct vmci_handle *vmci_handle_arr_get_handles(struct vmci_handle_arr *array);
44 
45 static inline size_t vmci_handle_arr_get_size(
46 	const struct vmci_handle_arr *array)
47 {
48 	return array->size;
49 }
50 
51 
52 #endif /* _VMCI_HANDLE_ARRAY_H_ */
53