# Java Virtual Machine invocation API and others services from the JNI C API
#
-# Users of this module and the Java FFI, on desktop computers, must define two environment variables:
+# Users of this module and the Java FFI, on desktop computers, must define three environment variables:
# * `JAVA_HOME` points to the installation folder of the target Java VM.
# This folder should contain the JNI header file `include/jni.h`.
# e.g. `/usr/lib/jvm/default-java` on Debian Jessie.
# * `JNI_LIB_PATH` points to the folder with `libjvm.so`.
# e.g. `/usr/lib/jvm/default-java/jre/lib/amd64/server/` on Debian Jessie.
+# * `LD_LIBRARY_PATH` has the path to the folder with `libjvm.so`.
+# It's the same value as `JNI_LIB_PATH` but `LD_LIBRARY_PATH` is a colon separated list
+# which may contain other paths.
#
# See: http://docs.oracle.com/javase/1.5.0/docs/guide/jni/spec/jniTOC.html
module jvm is
end
private extern class JavaVMOption `{ JavaVMOption* `}
- fun string: String import NativeString.to_s `{
- return NativeString_to_s((char*)self->optionString);
+ fun string: String import CString.to_s `{
+ return CString_to_s((char*)self->optionString);
`}
fun string=(v: String) import String.to_cstring `{
self->optionString = String_to_cstring(v);
`}
- fun extra_info: String import NativeString.to_s `{
- return NativeString_to_s((char*)self->extraInfo);
+ fun extra_info: String import CString.to_s `{
+ return CString_to_s((char*)self->extraInfo);
`}
fun extra_info=(v: String) import String.to_cstring `{
self->extraInfo = String_to_cstring(v);
return jvm;
`}
- private fun jni_error(msg: NativeString, v: Int)
+ private fun jni_error(msg: CString, v: Int)
do
print "JNI Error: {msg} ({v})"
abort
return res;
`}
- # Call a method on `obj` designed by `method_id` with an array `args` of arguments returning a NativeString
- fun call_string_method(obj: JavaObject, method_id: JMethodID, args: nullable Array[nullable Object]): NativeString import convert_args_to_jni `{
+ # Call a method on `obj` designed by `method_id` with an array `args` of arguments returning a CString
+ fun call_string_method(obj: JavaObject, method_id: JMethodID, args: nullable Array[nullable Object]): CString import convert_args_to_jni `{
jvalue * args_tab = JniEnv_convert_args_to_jni(self, args);
jobject jobj = (*self)->CallObjectMethod(self, obj, method_id, args_tab);
free(args_tab);
# Represents a jni JNINNativeMethod
extern class JNINativeMethod `{ JNINativeMethod* `}
- fun name: String import NativeString.to_s `{
- return NativeString_to_s((void*)self->name);
+ fun name: String import CString.to_s `{
+ return CString_to_s((void*)self->name);
`}
fun name=(name: String) import String.to_cstring `{
self->name = String_to_cstring(name);
`}
- fun signature: String import NativeString.to_s `{
- return NativeString_to_s((void*)self->signature);
+ fun signature: String import CString.to_s `{
+ return CString_to_s((void*)self->signature);
`}
fun signature=(signature: String) import String.to_cstring `{
`}
end
-redef class NativeString
+redef class CString
redef fun to_jvalue(env)`{
jvalue value;
value.l = (*env)->NewStringUTF(env, self);