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33 lines
906 B
C++
33 lines
906 B
C++
#include "hash.hpp"
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#define XXH_INLINE_ALL
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#include "xxhash.hpp"
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#include <fstream>
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#include <sstream>
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#include <iomanip>
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static std::string to_hex64(uint64_t value) {
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std::ostringstream oss;
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oss << std::hex << std::setw(16) << std::setfill('0') << value;
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return oss.str();
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}
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std::string hash_data(const std::string& data) {
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uint64_t h = XXH3_64bits(data.data(), data.size());
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return to_hex64(h);
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}
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std::string hash_file(const std::string& path) {
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std::ifstream file(path, std::ios::binary);
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if (!file) return "";
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XXH64_state_t* state = XXH64_createState();
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XXH64_reset(state, 0);
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char buf[4096];
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while (file) {
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file.read(buf, sizeof(buf));
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std::streamsize n = file.gcount();
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if (n > 0) XXH64_update(state, buf, static_cast<size_t>(n));
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}
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uint64_t h = XXH64_digest(state);
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XXH64_freeState(state);
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return to_hex64(h);
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}
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