wsutil/wmem/wmem_stack.c

   1 /* wmem_stack.c
   2  * Wireshark Memory Manager Stack
   3  * Copyright 2012, Evan Huus <eapache@gmail.com>
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11
  12 #include <string.h>
  13 #include <glib.h>
  14
  15 #include "wmem-int.h"
  16 #include "wmem_core.h"
  17 #include "wmem_stack.h"
  18 #include "wmem_list.h"
  19
  20 /* Wmem stack is implemented as a simple wrapper over Wmem list */
  21
  22 void *
  23 wmem_stack_peek(const wmem_stack_t *stack)
  24 {
  25     wmem_list_frame_t *frame;
  26
  27     frame = wmem_list_head(stack);
  28
  29     ws_assert(frame);
  30
  31     return wmem_list_frame_data(frame);
  32 }
  33
  34 void *
  35 wmem_stack_pop(wmem_stack_t *stack)
  36 {
  37     void *data;
  38
  39     data = wmem_stack_peek(stack);
  40
  41     wmem_list_remove(stack, data);
  42
  43     return data;
  44 }
  45
  46 /*
  47  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
  48  *
  49  * Local variables:
  50  * c-basic-offset: 4
  51  * tab-width: 8
  52  * indent-tabs-mode: nil
  53  * End:
  54  *
  55  * vi: set shiftwidth=4 tabstop=8 expandtab:
  56  * :indentSize=4:tabSize=8:noTabs=true:
  57  */