drivers/misc/vmw_vmci/vmci_handle_array.h

   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_ */