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#include <iostream>
#include <sstream>
#include "test_helpers.hxx"
using namespace PGSTD;
using namespace pqxx;
// Test program for libpqxx: import file to large object
namespace
{
const string Contents = "Large object test contents";
class ImportLargeObject : public transactor<>
{
public:
explicit ImportLargeObject(largeobject &O, const string &File) :
transactor<>("ImportLargeObject"),
m_Object(O),
m_File(File)
{
}
void operator()(argument_type &T)
{
m_Object = largeobject(T, m_File);
cout << "Imported '" << m_File << "' "
"to large object #" << m_Object.id() << endl;
}
private:
largeobject &m_Object;
string m_File;
};
class ReadLargeObject : public transactor<>
{
public:
explicit ReadLargeObject(largeobject &O) :
transactor<>("ReadLargeObject"),
m_Object(O)
{
}
void operator()(argument_type &T)
{
char Buf[200];
largeobjectaccess O(T, m_Object, ios::in);
const largeobjectaccess::size_type len = O.read(Buf, sizeof(Buf)-1);
PQXX_CHECK_EQUAL(
string(Buf, string::size_type(len)),
Contents,
"Large object contents were mangled.");
}
private:
largeobject m_Object;
};
class DeleteLargeObject : public transactor<>
{
public:
explicit DeleteLargeObject(largeobject O) : m_Object(O) {}
void operator()(argument_type &T)
{
m_Object.remove(T);
}
private:
largeobject m_Object;
};
void test_053(transaction_base &orgT)
{
connection_base &C(orgT.conn());
orgT.abort();
largeobject Obj;
C.perform(ImportLargeObject(Obj, "pqxxlo.txt"));
C.perform(ReadLargeObject(Obj));
C.perform(DeleteLargeObject(Obj));
}
} // namespace
PQXX_REGISTER_TEST_T(test_053, nontransaction)
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