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Tell libpqtypes to not make copies of strings it receives.

Browse source 
The wrapper now copies boost::string_ref into std::string so
it's always safe to pass a string ref, even when it's not
null-terminated.
This commit is contained in:
King_DuckZ 2016-01-11 12:47:17 +00:00
parent fa12bb2d74
commit 7e737f56a2
2 changed files with 9 additions and 5 deletions
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10
include/pq/implem/pq_type_helpers.hpp
View file

@ -24,6 +24,7 @@
#include <boost/utility/string_ref.hpp>
#include <vector>
#include <memory>
#include <cassert>
struct pg_param;
typedef pg_param PGparam;
@ -49,9 +50,12 @@ namespace pq {
};
template <>
struct get_pqlib_c_type_struct<boost::string_ref> {
private:
std::string m_str;
public:
using type = const char*;
explicit get_pqlib_c_type_struct ( const Connection& ) { }
static type conv ( const boost::string_ref& parParam ) { return parParam.data(); }
type conv ( boost::string_ref parParam ) { m_str = std::string(parParam.data(), parParam.size()); return m_str.c_str(); }
};
template <>
struct get_pqlib_c_type_struct<bool> {
@ -99,11 +103,11 @@ namespace pq {
template <>
struct type_to_pqtypes_name<std::string> {
constexpr static const char* name ( void ) { return "text"; }
constexpr static const char* name ( void ) { return "text*"; }
};
template <>
struct type_to_pqtypes_name<boost::string_ref> {
constexpr static const char* name ( void ) { return "text"; }
constexpr static const char* name ( void ) { return "text*"; }
};
template <>
struct type_to_pqtypes_name<bool> {

4
src/scan/dbbackend.cpp
View file

@ -133,8 +133,8 @@ namespace din {
system_clock::from_time_t(itm.mtime),
itm.hash_valid,
itm.unreadable,
std::string(itm.mime_type.data(), itm.mime_type.size()),
std::string(itm.mime_charset.data(), itm.mime_charset.size())
itm.mime_type,
itm.mime_charset
);
}
conn.query("COMMIT;");