65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2016-2018 The TokTok team.
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* Copyright © 2013 Tox project.
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*/
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/** @file
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* @brief Implementation of an efficient array to store that we pinged something.
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*/
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#ifndef C_TOXCORE_TOXCORE_PING_ARRAY_H
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#define C_TOXCORE_TOXCORE_PING_ARRAY_H
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#include <stddef.h>
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#include <stdint.h>
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#include "crypto_core.h"
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#include "mono_time.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct Ping_Array Ping_Array;
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/**
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* @brief Initialize a Ping_Array.
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*
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* @param size represents the total size of the array and should be a power of 2.
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* @param timeout represents the maximum timeout in seconds for the entry.
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*
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* @return pointer to allocated Ping_Array on success, nullptr on failure.
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*/
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struct Ping_Array *ping_array_new(uint32_t size, uint32_t timeout);
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/**
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* @brief Free all the allocated memory in a @ref Ping_Array.
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*/
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nullable(1)
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void ping_array_kill(Ping_Array *array);
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/**
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* @brief Add a data with length to the @ref Ping_Array list and return a ping_id.
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*
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* @return ping_id on success, 0 on failure.
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*/
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non_null()
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uint64_t ping_array_add(Ping_Array *array, const Mono_Time *mono_time, const Random *rng,
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const uint8_t *data, uint32_t length);
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/**
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* @brief Check if @p ping_id is valid and not timed out.
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*
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* On success, copies the data into data of length,
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*
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* @return length of data copied on success, -1 on failure.
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*/
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non_null()
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int32_t ping_array_check(Ping_Array *array, const Mono_Time *mono_time, uint8_t *data, size_t length,
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uint64_t ping_id);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // C_TOXCORE_TOXCORE_PING_ARRAY_H
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