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//
// read_until.cpp
// ~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Disable autolinking for unit tests.
#if !defined(BOOST_ALL_NO_LIB)
#define BOOST_ALL_NO_LIB 1
#endif // !defined(BOOST_ALL_NO_LIB)
// Test that header file is self-contained.
#include <boost/asio/read_until.hpp>
#include <boost/bind.hpp>
#include <boost/noncopyable.hpp>
#include <cstring>
#include <boost/asio.hpp>
#include "unit_test.hpp"
class test_stream
: private boost::noncopyable
{
public:
typedef boost::asio::io_service io_service_type;
test_stream(boost::asio::io_service& io_service)
: io_service_(io_service),
length_(0),
position_(0),
next_read_length_(0)
{
}
io_service_type& io_service()
{
return io_service_;
}
void reset(const void* data, size_t length)
{
using namespace std; // For memcpy.
BOOST_CHECK(length <= max_length);
memcpy(data_, data, length);
length_ = length;
position_ = 0;
next_read_length_ = length;
}
void next_read_length(size_t length)
{
next_read_length_ = length;
}
template <typename Mutable_Buffers>
size_t read_some(const Mutable_Buffers& buffers)
{
using namespace std; // For memcpy.
size_t total_length = 0;
typename Mutable_Buffers::const_iterator iter = buffers.begin();
typename Mutable_Buffers::const_iterator end = buffers.end();
for (; iter != end && total_length < next_read_length_; ++iter)
{
size_t length = boost::asio::buffer_size(*iter);
if (length > length_ - position_)
length = length_ - position_;
if (length > next_read_length_ - total_length)
length = next_read_length_ - total_length;
memcpy(boost::asio::buffer_cast<void*>(*iter), data_ + position_, length);
position_ += length;
total_length += length;
}
return total_length;
}
template <typename Mutable_Buffers>
size_t read_some(const Mutable_Buffers& buffers,
boost::system::error_code& ec)
{
ec = boost::system::error_code();
return read_some(buffers);
}
template <typename Mutable_Buffers, typename Handler>
void async_read_some(const Mutable_Buffers& buffers, Handler handler)
{
size_t bytes_transferred = read_some(buffers);
io_service_.post(boost::asio::detail::bind_handler(
handler, boost::system::error_code(), bytes_transferred));
}
private:
io_service_type& io_service_;
enum { max_length = 8192 };
char data_[max_length];
size_t length_;
size_t position_;
size_t next_read_length_;
};
static const char read_data[]
= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
void test_char_read_until()
{
boost::asio::io_service ios;
test_stream s(ios);
boost::asio::streambuf sb1;
boost::asio::streambuf sb2(25);
boost::system::error_code ec;
s.reset(read_data, sizeof(read_data));
std::size_t length = boost::asio::read_until(s, sb1, 'Z');
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
length = boost::asio::read_until(s, sb1, 'Z');
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
length = boost::asio::read_until(s, sb1, 'Z');
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
length = boost::asio::read_until(s, sb1, 'Z', ec);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
length = boost::asio::read_until(s, sb1, 'Z', ec);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
length = boost::asio::read_until(s, sb1, 'Z', ec);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
length = boost::asio::read_until(s, sb2, 'Z', ec);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
length = boost::asio::read_until(s, sb2, 'Z', ec);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
length = boost::asio::read_until(s, sb2, 'Z', ec);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
}
void test_string_read_until()
{
boost::asio::io_service ios;
test_stream s(ios);
boost::asio::streambuf sb1;
boost::asio::streambuf sb2(25);
boost::system::error_code ec;
s.reset(read_data, sizeof(read_data));
std::size_t length = boost::asio::read_until(s, sb1, "XYZ");
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
length = boost::asio::read_until(s, sb1, "XYZ");
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
length = boost::asio::read_until(s, sb1, "XYZ");
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
length = boost::asio::read_until(s, sb1, "XYZ", ec);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
length = boost::asio::read_until(s, sb1, "XYZ", ec);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
length = boost::asio::read_until(s, sb1, "XYZ", ec);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
length = boost::asio::read_until(s, sb2, "XYZ", ec);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
length = boost::asio::read_until(s, sb2, "XYZ", ec);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
length = boost::asio::read_until(s, sb2, "XYZ", ec);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
}
void async_read_handler(
const boost::system::error_code& err, boost::system::error_code* err_out,
std::size_t bytes_transferred, std::size_t* bytes_out, bool* called)
{
*err_out = err;
*bytes_out = bytes_transferred;
*called = true;
}
void test_char_async_read_until()
{
boost::asio::io_service ios;
test_stream s(ios);
boost::asio::streambuf sb1;
boost::asio::streambuf sb2(25);
boost::system::error_code ec;
std::size_t length;
bool called;
s.reset(read_data, sizeof(read_data));
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb1, 'Z',
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb1, 'Z',
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb1, 'Z',
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb2, 'Z',
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb2, 'Z',
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb2, 'Z',
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
}
void test_string_async_read_until()
{
boost::asio::io_service ios;
test_stream s(ios);
boost::asio::streambuf sb1;
boost::asio::streambuf sb2(25);
boost::system::error_code ec;
std::size_t length;
bool called;
s.reset(read_data, sizeof(read_data));
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb1, "XYZ",
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb1, "XYZ",
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb1, "XYZ",
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(!ec);
BOOST_CHECK(length == 26);
s.reset(read_data, sizeof(read_data));
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb2, "XYZ",
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(1);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb2, "XYZ",
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
s.reset(read_data, sizeof(read_data));
s.next_read_length(10);
ec = boost::system::error_code();
length = 0;
called = false;
boost::asio::async_read_until(s, sb2, "XYZ",
boost::bind(async_read_handler, boost::asio::placeholders::error, &ec,
boost::asio::placeholders::bytes_transferred, &length, &called));
ios.reset();
ios.run();
BOOST_CHECK(called);
BOOST_CHECK(ec == boost::asio::error::not_found);
BOOST_CHECK(length == 0);
}
test_suite* init_unit_test_suite(int argc, char* argv[])
{
test_suite* test = BOOST_TEST_SUITE("read_until");
test->add(BOOST_TEST_CASE(&test_char_read_until));
test->add(BOOST_TEST_CASE(&test_string_read_until));
test->add(BOOST_TEST_CASE(&test_char_async_read_until));
test->add(BOOST_TEST_CASE(&test_string_async_read_until));
return test;
}
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