IKVM.Runtime.JNI.JNIVM Class Reference

Static Public Member Functions
static int	CreateJavaVM (JavaVM **p_vm, void **p_env, void *vm_args)
	Implements the JNI_CreateJavaVM native method.
static int	GetDefaultJavaVMInitArgs (void *vm_args)
	Implements the JNI_GetDefaultJavaVMInitArgs native function.
static int	GetCreatedJavaVMs (JavaVM **ppvmBuf, jsize bufLen, jsize *nVMs)
	Implements the JNI_GetCreatedJavaVMs native function.

Detailed Description

Definition at line 38 of file JNIVM.cs.

Member Function Documentation

CreateJavaVM()

static int IKVM.Runtime.JNI.JNIVM.CreateJavaVM ( JavaVM ** p_vm, void ** p_env, void * vm_args )

static

Implements the JNI_CreateJavaVM native method.

Parameters

p_vm
p_env
vm_args

Returns

Definition at line 80 of file JNIVM.cs.

        {
            var pInitArgs = (JavaVMInitArgs*)vm_args;
 
            // we don't support the JDK 1.1 JavaVMInitArgs
            if (!IsSupportedJNIVersion(pInitArgs->version) || pInitArgs->version == JNIEnv.JNI_VERSION_1_1)
                return JNIEnv.JNI_EVERSION;
 
            // JVM is already created, only one allowed at a time
            if (jvmCreated)
                return JNIEnv.JNI_ERR;
 
            var properties = new Dictionary<string, string>();
            for (int i = 0; i < pInitArgs->nOptions; i++)
            {
                var option = DecodePlatformString(pInitArgs->options[i].optionString);
                if (option == null)
                    return JNIEnv.JNI_ERR;
 
                if (option.StartsWith("-D"))
                {
                    var idx = option.IndexOf('=', 2);
                    properties[option.Substring(2, idx - 2)] = option.Substring(idx + 1);
                }
                else if (option.StartsWith("-verbose"))
                {
                    // ignore
                }
                else if (option == "vfprintf" || option == "exit" || option == "abort")
                {
                    // not supported
                }
                else if (pInitArgs->ignoreUnrecognized == JNIEnv.JNI_FALSE)
                {
                    return JNIEnv.JNI_ERR;
                }
            }
 
            // initialize the JVM properties
            foreach (var kvp in properties)
                JVM.Properties.User[kvp.Key] = kvp.Value;
 
            java.lang.Thread.currentThread();
            *p_vm = JavaVM.pJavaVM;
 
            return JavaVM.AttachCurrentThread(JavaVM.pJavaVM, p_env, null);
        }

GetCreatedJavaVMs()

static int IKVM.Runtime.JNI.JNIVM.GetCreatedJavaVMs ( JavaVM ** ppvmBuf, jsize bufLen, jsize * nVMs )

static

Implements the JNI_GetCreatedJavaVMs native function.

Parameters

ppvmBuf
bufLen
nVMs

Returns

Definition at line 146 of file JNIVM.cs.

        {
            if (jvmCreated)
            {
                if (bufLen >= 1)
                    *ppvmBuf = JavaVM.pJavaVM;
 
                if (nVMs != null)
                    *nVMs = 1;
            }
            else if (nVMs != null)
                *nVMs = 0;
 
            return JNIEnv.JNI_OK;
        }

GetDefaultJavaVMInitArgs()

static int IKVM.Runtime.JNI.JNIVM.GetDefaultJavaVMInitArgs ( void * vm_args )

static

Implements the JNI_GetDefaultJavaVMInitArgs native function.

Parameters

vm_args

Returns

Definition at line 133 of file JNIVM.cs.

        {
            // This is only used for JDK 1.1 JavaVMInitArgs, and we don't support those.
            return JNIEnv.JNI_ERR;
        }

---

The documentation for this class was generated from the following file:

• src/IKVM.Runtime/JNI/JNIVM.cs