Changeset 49906 in vbox for trunk/src/VBox/Main/idl/midl.xsl

Timestamp:

Dec 14, 2013 9:01:04 PM (11 years ago)

Author:

vboxsync

Message:

Main: Some simple COM/XPCOM performance measurements. The idea was getting a baseline before experimenting with proxy/stub stuff in midl. There is some VirtualBox.idl preps related to that. Unforuntately, the proxy/stub generator doesn't support SAFEARRAY parameters with interface pointers other than IUnknown. So, we're probably up against something difficult here.

File:

• trunk/src/VBox/Main/idl/midl.xsl (modified) (4 diffs)

trunk/src/VBox/Main/idl/midl.xsl

@@ -21 +21 @@
 
 <xsl:strip-space elements="*"/>
+
+<!-- Whether to generate proxy code and type library ('yes'), or just the type-library. -->
+<xsl:param name="g_fGenProxy" select="'no'"/>
 
 
@@ -144 +147 @@
  *  libraries
 -->
-<xsl:template match="library">[
+<xsl:template match="library">
+  <xsl:if test="$g_fGenProxy = 'yes'">
+    <!-- Declare everything outside the library and then reference these
+         from inside the library statement.  See:
+         http://msdn.microsoft.com/en-us/library/windows/desktop/aa366841(v=vs.85).aspx -->
+    <xsl:text>&#x0A;</xsl:text>
+    <!-- forward declarations -->
+    <xsl:apply-templates select="if | interface" mode="forward"/>
+    <xsl:text>&#x0A;</xsl:text>
+    <!-- all enums go first -->
+    <xsl:apply-templates select="enum | if/enum"/>
+    <!-- everything else but result codes and enums -->
+    <xsl:apply-templates select="*[not(self::result or self::enum) and
+                                   not(self::if[result] or self::if[enum])]"/>
+  </xsl:if>
+
+[
     uuid(<xsl:value-of select="@uuid"/>),
     version(<xsl:value-of select="@version"/>),
@@ -161 +180 @@
   <xsl:apply-templates select="if | interface" mode="forward"/>
   <xsl:text>&#x0A;</xsl:text>
-  <!-- all enums go first -->
-  <xsl:apply-templates select="enum | if/enum"/>
-  <!-- everything else but result codes and enums -->
-  <xsl:apply-templates select="*[not(self::result or self::enum) and
-                                 not(self::if[result] or self::if[enum])]"/>
+  <xsl:choose>
+    <xsl:when test="$g_fGenProxy = 'yes'">
+      <!-- all enums go first -->
+      <xsl:apply-templates select="enum | if/enum" mode="forward"/>
+    </xsl:when>
+    <xsl:otherwise>
+      <!-- all enums go first -->
+      <xsl:apply-templates select="enum | if/enum"/>
+      <!-- everything else but result codes and enums -->
+      <xsl:apply-templates select="*[not(self::result or self::enum) and
+                                     not(self::if[result] or self::if[enum])]"/>
+    </xsl:otherwise>
+  </xsl:choose>
   <!-- -->
   <xsl:text>}; /* library </xsl:text>
@@ -190 +217 @@
   <xsl:value-of select="@name"/>
   <xsl:text>;&#x0A;</xsl:text>
+</xsl:template>
+
+
+<xsl:template match="enum" mode="forward">
+  <xsl:text>enum </xsl:text>
+  <xsl:value-of select="@name"/>
+  <xsl:text>;&#x0A;&#x0A;</xsl:text>
 </xsl:template>