Changeset 166 for trunk/src/library.cc

Timestamp:

07/17/13 03:28:22 (12 years ago)

Author:

epyon

Message:

• library - try_open and try_get functions added for non-throwing access
• lua - compatibility layer mode added - the whole system can bind to lua 5.1, 5.2 or LuaJIT as a *RUNTIME* choice

File:

• trunk/src/library.cc (modified) (4 diffs)

trunk/src/library.cc

@@ -44 +44 @@
 {
         m_name = name;
-        open();
+        if ( !open() )
+        {
+                m_handle = nullptr;
+                NV_THROW( library_error, "Can't load library!", name );
+        }
+}
+
+bool nv::library::try_open( const std::string& name )
+{
+        m_name = name;
+        if ( !open() )
+        {
+                m_handle = nullptr;
+                return false;
+        }
+        return true;
 }
 
@@ -52 +67 @@
 }
 
-void library::open()
+bool library::open( )
 {
     if ( m_handle != NULL )
     {
-        return;
+        return true;
     }
     NV_LOG( LOG_NOTICE, "library : loading '" + m_name + "'..." );
@@ -73 +88 @@
     if ( m_handle == NULL )
     {
-        NV_THROW( library_error, "Can't load library!", name );
+                NV_LOG( LOG_NOTICE, "library : '" + name + "' failed to open." );
+                return false;
     }
     NV_LOG( LOG_NOTICE, "library : '" + name + "' loaded." );
+        return true;
 }
 
@@ -86 +103 @@
     }
         return result;
+}
+
+void* nv::library::try_get( const std::string& symbol )
+{
+        return (void*) NV_LIB_GET( (NV_LIB_HANDLE) m_handle, symbol.c_str() );
 }