[pygobject/llvm: 13/17] [llvm] Reuse GModules

[Johan Dahlin <johan src gnome org>]

commit bd4e43c96596dadb7db03b08c4b01c1a0095f9ed
Author: Johan Dahlin <johan gnome org>
Date:   Thu Jul 8 18:05:19 2010 -0300

    [llvm] Reuse GModules
    
    Instead of reopening them on each access

 gi/llvm-compiler.cpp |   14 +++++++++++---
 gi/llvm-compiler.h   |    3 +++
 2 files changed, 14 insertions(+), 3 deletions(-)
---
diff --git a/gi/llvm-compiler.cpp b/gi/llvm-compiler.cpp
index 563e4e0..52b09a2 100644
--- a/gi/llvm-compiler.cpp
+++ b/gi/llvm-compiler.cpp
@@ -550,11 +550,19 @@ void *
 LLVMCompiler::getNativeAddress(GIFunctionInfo *info)
 {
   void * nativeAddress;
+  const char * namespace_ = g_base_info_get_namespace((GIBaseInfo*)info);
+  moduleMapType::iterator i = mGModules.find(namespace_);
+  GModule *module;
+  if (i == mGModules.end()) {
+    const gchar * shlib = g_irepository_get_shared_library(NULL, namespace_);
+    module = g_module_open(shlib, G_MODULE_BIND_LAZY);
+    mGModules.insert(std::make_pair(namespace_, module));
+  } else {
+    module= i->second;
+  }
 
-  const gchar * shlib = g_irepository_get_shared_library(NULL, g_base_info_get_namespace((GIBaseInfo*)info));
   const gchar * symbol = g_function_info_get_symbol(info);
-  GModule *m = g_module_open(shlib, G_MODULE_BIND_LAZY);
-  g_module_symbol(m, symbol, &nativeAddress);
+  g_module_symbol(module, symbol, &nativeAddress);
 
   return nativeAddress;
 }
diff --git a/gi/llvm-compiler.h b/gi/llvm-compiler.h
index c0494bb..8bacf61 100644
--- a/gi/llvm-compiler.h
+++ b/gi/llvm-compiler.h
@@ -31,12 +31,15 @@
 #include <llvm/Support/IRBuilder.h>
 
 namespace pygi {
+  // typelib namespace -> GModule
+  typedef std::map<std::string, GModule*> moduleMapType;
 
   class LLVMCompiler {
   private:
     llvm::LLVMContext &mCtx;
     llvm::ExecutionEngine *mEE;
     llvm::Module *mModule;
+    moduleMapType mGModules;
 
     llvm::ExecutionEngine* createExecutionEngine(void);