diff options
| author | Boris Kolpackov <boris@codesynthesis.com> | 2013-09-28 10:51:12 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2013-09-28 10:51:12 +0200 |
| commit | 31789cec4f59f7a6fd1e92eac523c595a7b102ac (patch) | |
| tree | 584244d644ff1c81002f9d1e3f9667f4fb710181 /odb/pgsql/section-statements.hxx | |
| parent | ec1498dcd925d1c01074114f615b5fd4010ae274 (diff) | |
Make schema version access (but not modification) thread-safe
Also cache the version in statements so that we don't have to lock
the mutex (slow) every time we need to check the version.
Diffstat (limited to 'odb/pgsql/section-statements.hxx')
| -rw-r--r-- | odb/pgsql/section-statements.hxx | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/odb/pgsql/section-statements.hxx b/odb/pgsql/section-statements.hxx index d75fd66..e7dcd9e 100644 --- a/odb/pgsql/section-statements.hxx +++ b/odb/pgsql/section-statements.hxx @@ -10,11 +10,14 @@ #include <cstddef> // std::size_t #include <odb/forward.hxx> +#include <odb/schema-version.hxx> #include <odb/traits.hxx> #include <odb/pgsql/version.hxx> #include <odb/pgsql/binding.hxx> #include <odb/pgsql/statement.hxx> +#include <odb/pgsql/connection.hxx> +#include <odb/pgsql/database.hxx> #include <odb/pgsql/pgsql-fwd.hxx> // Oid #include <odb/pgsql/details/export.hxx> @@ -49,6 +52,15 @@ namespace odb connection_type& connection () {return conn_;} + const schema_version_migration& + version_migration (const char* name = "") const + { + if (svm_ == 0) + svm_ = &conn_.database ().schema_version_migration (name); + + return *svm_; + } + image_type& image () {return image_;} @@ -152,6 +164,7 @@ namespace odb protected: connection_type& conn_; + mutable const schema_version_migration* svm_; // These come from object_statements. // |