1 files changed, 94 insertions, 0 deletions
diff --git a/subprojects/boost-sqlite/src/blob.cpp b/subprojects/boost-sqlite/src/blob.cpp
new file mode 100644
index 0000000..397d85b
--- /dev/null
+++ b/subprojects/boost-sqlite/src/blob.cpp
@@ -0,0 +1,94 @@
+//
+// Copyright (c) 2022 Klemens Morgenstern (klemens.morgenstern@gmx.net)
+//
+// 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)
+//
+
+
+#include <boost/sqlite/blob.hpp>
+#include <boost/sqlite/connection.hpp>
+
+BOOST_SQLITE_BEGIN_NAMESPACE
+
+blob_handle open_blob(connection & conn,
+                      cstring_ref db,
+                      cstring_ref table,
+                      cstring_ref column,
+                      sqlite3_int64 row,
+                      bool read_only,
+                      system::error_code & ec,
+                      error_info & ei)
+{
+  sqlite3_blob * bb = nullptr;
+  blob_handle bh;
+
+  int res = sqlite3_blob_open(conn.handle(), db.c_str(), table.c_str(), column.c_str(),
+                              row, read_only ? 0 : 1, &bb);
+  if (res != 0)
+  {
+      BOOST_SQLITE_ASSIGN_EC(ec, sqlite3_errcode(conn.handle()));
+      ei.set_message(sqlite3_errmsg(conn.handle()));
+  }
+  else
+      bh = blob_handle(bb);
+
+  return bh;
+}
+
+blob_handle open_blob(connection & conn,
+                      cstring_ref db,
+                      cstring_ref table,
+                      cstring_ref column,
+                      sqlite3_int64 row,
+                      bool read_only)
+{
+  boost::system::error_code ec;
+  error_info ei;
+  auto b = open_blob(conn, db, table, column, row, read_only, ec, ei);
+  if (ec)
+    boost::throw_exception(system::system_error(ec, ei.message()), BOOST_CURRENT_LOCATION);
+  return b;
+}
+
+void blob_handle::reopen(sqlite3_int64 row_id, system::error_code & ec)
+{
+  int res = sqlite3_blob_reopen(blob_.get(), row_id);
+  BOOST_SQLITE_ASSIGN_EC(ec, res);
+}
+void blob_handle::reopen(sqlite3_int64 row_id)
+{
+  boost::system::error_code ec;
+  reopen(row_id, ec);
+  if (ec)
+    boost::throw_exception(system::system_error(ec), BOOST_CURRENT_LOCATION);
+}
+
+void blob_handle::read_at(void *data, int len, int offset, system::error_code &ec)
+{
+  int res = sqlite3_blob_read(blob_.get(), data, len, offset);
+  BOOST_SQLITE_ASSIGN_EC(ec, res);
+}
+void blob_handle::read_at(void *data, int len, int offset)
+{
+  boost::system::error_code ec;
+  read_at(data, len, offset, ec);
+  if (ec)
+    boost::throw_exception(system::system_error(ec), BOOST_CURRENT_LOCATION);
+}
+
+void blob_handle::write_at(const void *data, int len, int offset, system::error_code &ec)
+{
+  int res = sqlite3_blob_write(blob_.get(), data, len, offset);
+  BOOST_SQLITE_ASSIGN_EC(ec, res);
+}
+void blob_handle::write_at(const void *data, int len, int offset)
+{
+  boost::system::error_code ec;
+  write_at(data, len, offset, ec);
+  if (ec)
+    boost::throw_exception(system::system_error(ec), BOOST_CURRENT_LOCATION);
+}
+
+BOOST_SQLITE_END_NAMESPACE
+