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/*
* Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
*
* libcbor is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifndef LIBCBOR_STACK_H
#define LIBCBOR_STACK_H
#include "cbor/common.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Simple stack record for the parser */
struct _cbor_stack_record {
/** Pointer to the parent stack frame */
struct _cbor_stack_record *lower;
/** Item under construction */
cbor_item_t *item;
/**
* How many outstanding subitems are expected.
*
* For example, when we see a new definite array, `subitems` is initialized to
* the array length. With every item added, the counter is decreased. When it
* reaches zero, the stack is popped and the complete item is propagated
* upwards.
*/
size_t subitems;
};
/** Stack handle - contents and size */
struct _cbor_stack {
struct _cbor_stack_record *top;
size_t size;
};
_CBOR_NODISCARD
struct _cbor_stack _cbor_stack_init(void);
void _cbor_stack_pop(struct _cbor_stack *);
_CBOR_NODISCARD
struct _cbor_stack_record *_cbor_stack_push(struct _cbor_stack *, cbor_item_t *,
size_t);
#ifdef __cplusplus
}
#endif
#endif // LIBCBOR_STACK_H
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