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Optimize serial copies of byte arrays

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Switch from a range_for copying bytes to use of copy_n.
This commit is contained in:
Kp 2014-09-20 18:14:00 +00:00
parent d263380179
commit c7d9477fca
1 changed files with 22 additions and 2 deletions
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24
common/include/serial.h
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@ -466,6 +466,13 @@ static inline void process_integer(Accessor &buffer, A1 &a1)
advance(buffer, sizeof(u.u));
}
template <typename Accessor, typename A, typename T = typename A::value_type>
static inline typename tt::enable_if<sizeof(T) == 1 && tt::is_integral<T>::value, void>::type process_array(Accessor &accessor, A &a)
{
std::copy_n(static_cast<typename Accessor::pointer>(accessor), a.size(), &a[0]);
advance(accessor, a.size());
}
}
namespace writer {
@ -487,6 +494,13 @@ static inline void process_integer(Accessor &buffer, const A1 &a1)
advance(buffer, sizeof(u.u));
}
template <typename Accessor, typename A, typename T = typename A::value_type>
static inline typename tt::enable_if<sizeof(T) == 1 && tt::is_integral<T>::value, void>::type process_array(Accessor &accessor, const A &a)
{
std::copy_n(&a[0], a.size(), static_cast<typename Accessor::pointer>(accessor));
advance(accessor, a.size());
}
}
template <typename Accessor, typename A1>
@ -515,11 +529,17 @@ static inline typename tt::enable_if<is_generic_class<A1>::value, void>::type pr
postprocess_udt(accessor, a1);
}
template <typename Accessor, typename A, typename T = typename A::value_type>
static typename tt::enable_if<!(sizeof(T) == 1 && tt::is_integral<T>::value), void>::type process_array(Accessor &accessor, A &a)
{
range_for (auto &i, a)
process_buffer(accessor, i);
}
template <typename Accessor, typename A1>
typename tt::enable_if<is_cxx_array<A1>::value, void>::type process_buffer(Accessor &accessor, A1 &a1)
{
range_for (auto &i, a1)
process_buffer(accessor, i);
process_array(accessor, a1);
}
template <typename Accessor, typename... Args, std::size_t... N>