corda/sgx-jvm/avian/src/embedded-loader.cpp
Andras Slemmer 9bb3d6b972 Add 'sgx-jvm/avian/' from commit '09e4fe60d01f4f4bfb6b2976973bb4913ef61edc'
git-subtree-dir: sgx-jvm/avian
git-subtree-mainline: f978eab8d1
git-subtree-split: 09e4fe60d0
2017-03-13 12:18:24 +00:00

105 lines
2.6 KiB
C++

/* Copyright (c) 2008-2015, Avian Contributors
Permission to use, copy, modify, and/or distribute this software
for any purpose with or without fee is hereby granted, provided
that the above copyright notice and this permission notice appear
in all copies.
There is NO WARRANTY for this software. See license.txt for
details. */
#include <windows.h>
#include <tchar.h>
#include <stdint.h>
#include "avian/embed.h"
#include "avian/common.h"
#include "jni.h"
extern "C" {
// since we aren't linking against libstdc++, we must implement this
// ourselves:
void __cxa_pure_virtual(void)
{
abort();
}
AVIAN_EXPORT const uint8_t* bootJar(unsigned* size)
{
if (HRSRC hResInfo = FindResourceW(
NULL, RESID_BOOT_JAR, reinterpret_cast<LPCWSTR>(RT_RCDATA))) {
if (HGLOBAL hRes = LoadResource(NULL, hResInfo)) {
*size = SizeofResource(NULL, hResInfo);
return (const uint8_t*)LockResource(hRes);
}
}
fprintf(stderr, "boot.jar resource not found\n");
*size = 0;
return NULL;
}
} // extern "C"
static void getMainClass(char* pName, int maxLen)
{
if (0 == LoadString(NULL, RESID_MAIN_CLASS, pName, maxLen)) {
fprintf(stderr, "Main class not specified\n");
strcpy(pName, "Main");
}
}
int main(int ac, const char** av)
{
JavaVMInitArgs vmArgs;
vmArgs.version = JNI_VERSION_1_2;
vmArgs.nOptions = 1;
vmArgs.ignoreUnrecognized = JNI_TRUE;
JavaVMOption options[1];
vmArgs.options = options;
options[0].optionString = const_cast<char*>("-Xbootclasspath:[bootJar]");
JavaVM* vm;
void* env;
JNI_CreateJavaVM(&vm, &env, &vmArgs);
JNIEnv* e = static_cast<JNIEnv*>(env);
char mainClass[256];
getMainClass(mainClass, sizeof(mainClass));
jclass c = e->FindClass(mainClass);
if (not e->ExceptionCheck()) {
jmethodID m = e->GetStaticMethodID(c, "main", "([Ljava/lang/String;)V");
if (not e->ExceptionCheck()) {
jclass stringClass = e->FindClass("java/lang/String");
if (not e->ExceptionCheck()) {
jobjectArray a = e->NewObjectArray(ac - 1, stringClass, 0);
if (not e->ExceptionCheck()) {
for (int i = 1; i < ac; ++i) {
e->SetObjectArrayElement(a, i - 1, e->NewStringUTF(av[i]));
}
e->CallStaticVoidMethod(c, m, a);
} else
fprintf(stderr, "Couldn't create array\n");
} else
fprintf(stderr, "java.lang.String not found\n");
} else
fprintf(stderr, "main method not found\n");
} else
fprintf(stderr, "Main class not found\n");
int exitCode = 0;
if (e->ExceptionCheck()) {
exitCode = -1;
e->ExceptionDescribe();
e->ExceptionClear();
}
vm->DestroyJavaVM();
return exitCode;
}