public static unsafe IntPtr CreateJavaVm(IEnumerable<string> jvmOptions, JvmHooks jvmHooks)
{
Debug.Assert(jvmOptions != null);
Debug.Assert(jvmHooks != null);
var initArgs = GetJavaVmInitArgs(jvmOptions.EmptyIfNull().ToArray(), jvmHooks);
try
{
IntPtr jvmPtr;
IntPtr envPtr;
var result = JniApiImport.JNI_CreateJavaVM(out jvmPtr, out envPtr, &initArgs);
WrapperHelpers.VerifyJniResult(result);
return jvmPtr;
}
finally
{
ReleaseJavaVmInitArgs(initArgs);
}
}
private static unsafe JavaVmInitArgs GetJavaVmInitArgs(string[] jvmOptions, JvmHooks jvmHooks)
{
var initArgs = default(JavaVmInitArgs);
initArgs.version = (int)PreferredJniVersion;
initArgs.ignoreUnrecognized = JniBooleanValue.True;
var nativeJvmOptions = new JavaVmOption[jvmOptions.Length + 3];
//exit
nativeJvmOptions[0].optionString = Marshal.StringToHGlobalAnsi("exit");
JniHooksSig.Exit exitHook = jvmHooks.GetExitHook();
if (exitHook != null)
nativeJvmOptions[0].extraInfo = Marshal.GetFunctionPointerForDelegate(exitHook);
else
nativeJvmOptions[0].extraInfo = DefaultExitHookPtr;
//abort
nativeJvmOptions[1].optionString = Marshal.StringToHGlobalAnsi("abort");
JniHooksSig.Abort abortHook = jvmHooks.GetAbortHook();
if (abortHook != null)
nativeJvmOptions[1].extraInfo = Marshal.GetFunctionPointerForDelegate(abortHook);
else
nativeJvmOptions[1].extraInfo = DefaultAbortHookPtr;
//vfprintf
nativeJvmOptions[2].optionString = Marshal.StringToHGlobalAnsi("vfprintf");
nativeJvmOptions[2].extraInfo = DefaultVfprintfHookPtr;
for (var i = 0; i < jvmOptions.Length; i++)
nativeJvmOptions[i + 3].optionString = Marshal.StringToHGlobalAnsi(jvmOptions[i]);
//TODO: review fixed statement
fixed (JavaVmOption* ptr = &nativeJvmOptions[0])
{
initArgs.options = ptr;
initArgs.nOptions = nativeJvmOptions.Length;
}
return initArgs;
}
