[Boost-commit] svn:boost r7535

From: grafik_at_[hidden]
Date: 2007-07-25 01:00:29

Author: grafik
Date: 2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
New Revision: 7535
URL: http://svn.boost.org/trac/boost/changeset/7535

Log:
Code to test feasibility of redefining a Java class from within JNI.

Added:
   sandbox/langbinding/libs/langbinding/test/java_jni_test/
   sandbox/langbinding/libs/langbinding/test/java_jni_test/boost-build.jam
   sandbox/langbinding/libs/langbinding/test/java_jni_test/build.jam
   sandbox/langbinding/libs/langbinding/test/java_jni_test/native/
   sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/
   sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/A.cpp
   sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/A.java
   sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/
   sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/
   sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/A.java
   sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/B.java

Added: sandbox/langbinding/libs/langbinding/test/java_jni_test/boost-build.jam
==============================================================================
--- (empty file)
+++ sandbox/langbinding/libs/langbinding/test/java_jni_test/boost-build.jam	2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
@@ -0,0 +1,43 @@
+# Copyright Rene Rivera 2007.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# For instructions see Jamfile.v2, or "bjam --help".
+
+local rule if-has-file ( file + : dir * )
+{
+    local result ;
+    if $(dir)
+    {
+        result = [ GLOB $(dir) : $(file) ] ;
+    }
+    return $(result[1]:P) ;
+}
+
+#~ Attempts to find the Boost source tree...
+
+local boost-src = [ if-has-file configure :
+    [ MATCH --boost=(.*) : $(ARGV) ]
+    $(BOOST)
+    $(.boost-build-file:D)/../boost
+    ] ;
+
+#~ Attempts to find the Boost.Build files...
+
+local boost-build-src = [ if-has-file bootstrap.jam :
+    [ MATCH --boost-build=(.*) : $(ARGV) ]
+    $(BOOST_BUILD_PATH)
+    $(BOOST_BUILD)
+    $(boost-src)/tools/build/v2
+    ] ;
+
+#~ Set some common vars to refer to the Boost sources...
+
+BOOST ?= $(boost-src) ;
+BOOST_ROOT ?= $(boost-src) ;
+
+#~ And load up Boost.Build...
+
+boost-build $(boost-build-src) ;

Added: sandbox/langbinding/libs/langbinding/test/java_jni_test/build.jam
==============================================================================
--- (empty file)
+++ sandbox/langbinding/libs/langbinding/test/java_jni_test/build.jam	2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
@@ -0,0 +1,69 @@
+# Copyright Rene Rivera 2007.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# Usage:
+#
+#   bjam [options | properties | targets]
+#
+# Options:
+#
+#   --boost=<BOOST>         The directotory of a Boost source tree.
+#                           Default; BOOST env var (if found)
+#                           Default; ../boost (if found)
+#
+#   --boost-build=<BOOST_BUILD>
+#                           The directory for the Boost.Build v2 files.
+#                           Default; BOOST_BUILD_PATH env var (if found)
+#                           Default; BOOST_BUILD env var (if found)
+#                           Default; <BOOST>/tools/build/v2 (if found)
+
+#~ If we have the Boost sources we can use the project...
+
+if [ GLOB $(BOOST) : [ modules.peek project : JAMFILE ] ]
+{
+    use-project /boost : $(BOOST) ;
+}
+
+path-constant JDK : "C:/Program Files/Java/jdk1.5.0_06" ;
+
+lib boost_A
+    :
+        native/boost/A.cpp
+    :
+        <include>"$(JDK)/include"
+        <include>"$(JDK)/include/win32"
+    ;
+
+install stub
+    :
+        boost_A
+    ;
+
+make native_boost_A_class
+    :   native/boost/A.java
+    :   @javac
+    :   <dependency>stub
+    ;
+make stub_boost_A_class
+    :   stub/boost/A.java
+    :   @javac
+    :   <dependency>stub
+    ;
+make stub_boost_B_class
+    :   stub/boost/B.java
+    :   @javac
+    :   <dependency>stub_boost_A_class
+    ;
+
+rule javac ( targets * : sources * : properties * )
+{
+    JAVAC on $(<) = $(JDK)/bin/javac ;
+}
+
+actions javac
+{
+    "$(JAVAC)" -classpath "$(>[1]:P)/.." -d "$(>[1]:P)/.." "$(>[1])"
+}

Added: sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/A.cpp
==============================================================================
--- (empty file)
+++ sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/A.cpp	2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
@@ -0,0 +1,49 @@
+#include <jni.h>
+#include <cstdio>
+#include <cassert>
+
+extern "C" JNIEXPORT void JNICALL foobar(JNIEnv *, jclass)
+{
+    fputs("Here we are, in foobar().",stderr);
+}
+
+namespace
+{
+    JNINativeMethod jniMethods[] = {
+        { "foo", "()V", &foobar }
+        };
+}
+
+extern "C" JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
+{
+    fputs("A.cpp:JNI_OnLoad...",stderr);
+    
+    JNIEnv * env = 0;
+    assert( JNI_EVERSION != vm->GetEnv((void**)&env,JNI_VERSION_1_2) );
+    
+    jclass system_C = env->FindClass("java/lang/System");
+    jmethodID systemGetSecurityManager_M
+        = env->GetStaticMethodID(system_C,"getSecurityManager","()Ljava/lang/SecurityManager");
+    jclass securityManager_C = env->FindClass("java/lang/SecurityManager");
+    jmethodID securityManagerCurrentClassLoader_M
+        = env->GetMethodID(securityManager_C,"currentClassLoader","()Ljava/lang/ClassLoader");
+    
+    jobject securityManager = env->CallStaticObjectMethod(system_C,systemGetSecurityManager_M);
+    jobject classLoader = env->CallObjectMethod(securityManager,securityManagerCurrentClassLoader_M);
+    
+    FILE * f = std::fopen("../native/boost/A.class","rb"); assert( f );
+    std::fseek(f,0,SEEK_END);
+    long bufferLength = std::ftell(f)+1;
+    assert( bufferLength > 0 );
+    jbyte * buffer = new jbyte[bufferLength];
+    std::rewind(f);
+    assert( std::fread(buffer,1,bufferLength,f) == bufferLength );
+    std::fclose(f);
+    jclass a_C = env->DefineClass("boost/A",classLoader,buffer,bufferLength);
+    delete[] buffer;
+    assert( a_C );
+    
+    assert( 0 == env->RegisterNatives(a_C,jniMethods,1) );
+    
+    return JNI_VERSION_1_2;
+}

Added: sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/A.java
==============================================================================
--- (empty file)
+++ sandbox/langbinding/libs/langbinding/test/java_jni_test/native/boost/A.java	2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
@@ -0,0 +1,6 @@
+package boost;
+
+public class A
+{
+    public static native void foo();
+}

Added: sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/A.java
==============================================================================
--- (empty file)
+++ sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/A.java	2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
@@ -0,0 +1,9 @@
+package boost;
+
+public class A
+{
+    static {
+        java.lang.System.out.println("stub/boost/A/static_init...");
+        java.lang.System.loadLibrary("boost_A.dll");
+    }
+}

Added: sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/B.java
==============================================================================
--- (empty file)
+++ sandbox/langbinding/libs/langbinding/test/java_jni_test/stub/boost/B.java	2007-07-25 01:00:28 EDT (Wed, 25 Jul 2007)
@@ -0,0 +1,11 @@
+package boost;
+
+import boost.A;
+
+public class B extends boost.A
+{
+    public static void bar()
+    {
+        boost.A.foo();
+    }
+}