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Diffstat (limited to 'odb/session.cxx')
-rw-r--r-- | odb/session.cxx | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/odb/session.cxx b/odb/session.cxx new file mode 100644 index 0000000..b34c1d7 --- /dev/null +++ b/odb/session.cxx @@ -0,0 +1,72 @@ +// file : odb/session.cxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#include <odb/exceptions.hxx> +#include <odb/session.hxx> + +#include <odb/details/tls.hxx> + +namespace odb +{ + using namespace details; + + static ODB_TLS_POINTER (session) current_session; + + session:: + session () + { + if (has_current ()) + throw already_in_session (); + + current (*this); + } + + session:: + ~session () + { + // If we are the current thread's session, reset it. + // + if (has_current () && ¤t () == this) + reset_current (); + } + + bool session:: + has_current () + { + return tls_get (current_session) != 0; + } + + session& session:: + current () + { + session* cur (tls_get (current_session)); + + if (cur == 0) + throw not_in_session (); + + return *cur; + } + + void session:: + current (session& s) + { + tls_set (current_session, &s); + } + + void session:: + reset_current () + { + session* s (0); + tls_set (current_session, s); + } + + // + // object_map_base + // + session::object_map_base:: + ~object_map_base () + { + } +} |