C++ Iterator Facade for sockets

Question

I was wondering if there is a good implementation (library) of a C++ iterator facade around sockets. I've gone through the Boost Iterator library and ASIO, and can't seem to find anything. An open source solution would be great!

I'm looking for a solution to the following use-case:

int socket_handler = 0;

socket_iterator it(socket_handler);
socket_iterator end;

//read mode 1:
while (it != end)
{
  char c = *it;
   .
   .
  ++it;
}

//read mode 2:
while (it != end)
{
  std::string s = *it;
   .
   .
  ++it;
}

//write mode 1:
unsigned char c = 0;
while (c < 100)
{
  *it = c++;
  .
  .
  ++it;
}

//write mode 2:
std::sttring s = "abc";
for (unsigned int i = 0; i < 10; ++i)
{
  *it = s;
   .
   .
  ++it;
}

Note: it == end, when the connection is disconnected.

Boost.Asio's [socket iostreams](http://www.boost.org/doc/libs/1_38_0/doc/html/boost_asio/overview/networking/iostreams.html) didn't work for you? — Chris Frederick, May 22 '11 at 23:52
@Chris: It doesn't seem to be compatible with istream_iterator and ostream_iterator. — Gerdiner, May 22 '11 at 23:58
This sounds a lot like "Leaky Abstraction": http://www.joelonsoftware.com/articles/LeakyAbstractions.html — Nikolai Fetissov, May 24 '11 at 20:28
@Nikolai: According to that article everything in programming above machine language is a leaky abstraction. Leaky abstractions can still be useful. — Michael Burr, May 24 '11 at 21:14
@Michael, true. But this one feels especially leaky :) Networks are oh so special. — Nikolai Fetissov, May 25 '11 at 12:42

score 2 · Answer 1 · edited May 24 '11 at 22:11

2

@Gerdiner, Boost.Asio is the winner. Regarding your istream_iterator, check out the following:

boost::asio::streambuf myBuffer;
std::string myString;

// Convert streambuf to std::string
std::istream(&myBuffer) >> myString;

With ASIO, you won't need an iterator, however. See the following async client for a starting place.

Async HTTP Client

edited May 24 '11 at 22:11

ildjarn

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answered May 24 '11 at 20:15

Sean

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C++ Iterator Facade for sockets

1 Answers1