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Commit 2884dd8b authored by Steven Moreland's avatar Steven Moreland
Browse files

binder_parcel_fuzzer: faster string creation 

Bug: 142473153
Test: binder_parcel_fuzzer execution time reduced by an order of
    magnitude for some extreme cases

Change-Id: I0f4a50be4260f968e31068407bc0a7b70ae33a3d
parent dc449dc7

libs/binder/fuzzer/util.cpp

+9 −5
Original line number Diff line number Diff line
@@ -24,13 +24,17 @@ 
std::string hexString(const void* bytes, size_t len) {

    if (bytes == nullptr) return "<null>";



    std::ostringstream s;

    s << std::hex << std::setfill('0');

    const uint8_t* bytes8 = static_cast<const uint8_t*>(bytes);

    char chars[] = "0123456789abcdef";

    std::string result;

    result.resize(len * 2);



    for (size_t i = 0; i < len; i++) {

        s << std::setw(2) << static_cast<int>(

            static_cast<const uint8_t*>(bytes)[i]);

        result[2 * i] = chars[bytes8[i] >> 4];

        result[2 * i + 1] = chars[bytes8[i] & 0xf];

    }

    return s.str();



    return result;

}

std::string hexString(const std::vector<uint8_t>& bytes) {

    return hexString(bytes.data(), bytes.size());