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Added peekstr and peektyp methods

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These methods peeks a part and return a copy of its value as a string or the specified type.
This commit is contained in:
Vincent Tellier
2017-06-07 09:54:37 +02:00
committed by GitHub
parent 0feae8c3e9
commit 0ffe2f4974
1 changed files with 19 additions and 2 deletions
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21
zmq_addon.hpp
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@@ -1,5 +1,5 @@
/*
Copyright (c) 2016 VOCA AS / Harald N<EFBFBD>kland
Copyright (c) 2016 VOCA AS / Harald Nøkland
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
@@ -36,7 +36,7 @@ namespace zmq {
/*
This class handles multipart messaging. It is the C++ equivalent of zmsg.h,
which is part of CZMQ (the high-level C binding). Furthermore, it is a major
improvement compared to zmsg.hpp, which is part of the examples in the <EFBFBD>MQ
improvement compared to zmsg.hpp, which is part of the examples in the ØMQ
Guide. Unnecessary copying is avoided by using move semantics to efficiently
add/remove parts.
*/
@@ -327,6 +327,23 @@ public:
{
return &m_parts[index];
}
// Get a string copy of a specific message part
std::string peekstr(size_t index) const
{
std::string string(m_parts[index].data<char>(), m_parts[index].size());
return string;
}
// Peek type (fixed-size) from front
template<typename T>
T peektyp(size_t index)
{
static_assert(!std::is_same<T, std::string>::value, "Use peekstr() instead of peektyp<std::string>()");
if(sizeof(T) != m_parts.front().size())
throw std::runtime_error("Invalid type, size does not match the message size");
T type = *m_parts[index].data<T>();
}
// Create multipart from type (fixed-size)
template<typename T>