76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
#include "varint_pair.h"
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#include <toolbox/varint.h>
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#define VARINT_PAIR_SIZE 10
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struct VarintPair {
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size_t data_length;
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uint8_t data[VARINT_PAIR_SIZE];
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};
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VarintPair* varint_pair_alloc() {
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VarintPair* pair = malloc(sizeof(VarintPair));
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pair->data_length = 0;
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return pair;
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}
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void varint_pair_free(VarintPair* pair) {
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free(pair);
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}
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bool varint_pair_pack(VarintPair* pair, bool first, uint32_t value) {
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bool result = false;
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if(first) {
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if(pair->data_length == 0) {
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pair->data_length = varint_uint32_pack(value, pair->data);
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} else {
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pair->data_length = 0;
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}
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} else {
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if(pair->data_length != 0) {
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pair->data_length += varint_uint32_pack(value, pair->data + pair->data_length);
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result = true;
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}
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}
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return result;
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}
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bool varint_pair_unpack(
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uint8_t* data,
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size_t data_length,
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uint32_t* value_1,
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uint32_t* value_2,
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size_t* length) {
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size_t size = 0;
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uint32_t tmp_value_1;
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uint32_t tmp_value_2;
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size += varint_uint32_unpack(&tmp_value_1, &data[size], data_length);
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if(size >= data_length) {
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return false;
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}
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size += varint_uint32_unpack(&tmp_value_2, &data[size], (size_t)(data_length - size));
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*value_1 = tmp_value_1;
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*value_2 = tmp_value_2;
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*length = size;
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return true;
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}
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uint8_t* varint_pair_get_data(VarintPair* pair) {
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return pair->data;
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}
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size_t varint_pair_get_size(VarintPair* pair) {
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return pair->data_length;
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}
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void varint_pair_reset(VarintPair* pair) {
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pair->data_length = 0;
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}
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