mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 20:55:01 +00:00
90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
// jni-libjvm.cc - an implementation of the JNI invocation API.
|
|
|
|
/* Copyright (C) 2006 Free Software Foundation
|
|
|
|
This file is part of libgcj.
|
|
|
|
This software is copyrighted work licensed under the terms of the
|
|
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
|
|
details. */
|
|
|
|
#include <gcj/cni.h>
|
|
#include <gcj/javaprims.h>
|
|
#include <java-assert.h>
|
|
#include <jvm.h>
|
|
#include <jni.h>
|
|
|
|
using namespace gcj;
|
|
|
|
// Forward declarations.
|
|
extern struct JNIInvokeInterface_ _Jv_JNI_InvokeFunctions;
|
|
extern jint JNICALL _Jv_JNI_AttachCurrentThread (JavaVM *vm,
|
|
void **penv, void *args);
|
|
extern JavaVM *_Jv_the_vm;
|
|
|
|
jint JNICALL
|
|
JNI_GetDefaultJavaVMInitArgs (void *args)
|
|
{
|
|
jint version = * (jint *) args;
|
|
// Here we only support 1.2 and 1.4.
|
|
if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
|
|
return JNI_EVERSION;
|
|
|
|
JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
|
|
ia->version = JNI_VERSION_1_4;
|
|
ia->nOptions = 0;
|
|
ia->options = NULL;
|
|
ia->ignoreUnrecognized = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
jint JNICALL
|
|
JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
|
|
{
|
|
JvAssert (! _Jv_the_vm);
|
|
|
|
jint version = * (jint *) args;
|
|
// We only support 1.2 and 1.4.
|
|
if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
|
|
return JNI_EVERSION;
|
|
|
|
JvVMInitArgs* vm_args = reinterpret_cast<JvVMInitArgs *> (args);
|
|
|
|
jint result = _Jv_CreateJavaVM (vm_args);
|
|
if (result)
|
|
return result;
|
|
|
|
// FIXME: synchronize
|
|
JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
|
|
if (nvm == NULL)
|
|
return JNI_ERR;
|
|
nvm->functions = &_Jv_JNI_InvokeFunctions;
|
|
|
|
jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
_Jv_the_vm = nvm;
|
|
*vm = _Jv_the_vm;
|
|
|
|
return 0;
|
|
}
|
|
|
|
jint JNICALL
|
|
JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
|
|
{
|
|
if (buf_len <= 0)
|
|
return JNI_ERR;
|
|
|
|
// We only support a single VM.
|
|
if (_Jv_the_vm != NULL)
|
|
{
|
|
vm_buffer[0] = _Jv_the_vm;
|
|
*n_vms = 1;
|
|
}
|
|
else
|
|
*n_vms = 0;
|
|
return 0;
|
|
}
|