fizz::jni Namespace Reference

Functions
void	setVM (JavaVM *jvm)
JNIEnv *	getEnv (bool *shouldDetach)
void	releaseEnv (bool shouldDetach)
jclass	getClass (JNIEnv *env, const std::string &name)
jmethodID	getMethodID (JNIEnv *env, jclass clazz, const std::string &name, const std::string &signature)
void	maybeThrowException (JNIEnv *env, bool shouldDetach)
jbyteArray	createByteArray (JNIEnv *env, folly::ByteRange byteRange)
jbyteArray	createByteArray (JNIEnv *env, Buf buf)

Function Documentation

jbyteArray fizz::jni::createByteArray	(	JNIEnv *	env,
		folly::ByteRange	byteRange
	)

Definition at line 72 of file JniUtils.cpp.

References folly::Range< Iter >::data(), and folly::Range< Iter >::size().

Referenced by createByteArray(), fizz::JavaCryptoPeerCert::JavaCryptoPeerCert(), and fizz::JavaCryptoPeerCert::verify().

                                                                  {
  auto byteArray = env->NewByteArray(byteRange.size());
  env->SetByteArrayRegion(
      byteArray,
      0 /*start*/,
      byteRange.size(),
      reinterpret_cast<const jbyte*>(byteRange.data()));
  return byteArray;
}

jbyteArray fizz::jni::createByteArray	(	JNIEnv *	env,
		Buf	buf
	)

Definition at line 82 of file JniUtils.cpp.

References createByteArray().

                                                 {
  return createByteArray(env, buf->coalesce());
}

jclass fizz::jni::getClass	(	JNIEnv *	env,
		const std::string &	name
	)

Definition at line 46 of file JniUtils.cpp.

Referenced by fizz::JavaCryptoPeerCert::onLoad().

                                                    {
  auto clazz =
      reinterpret_cast<jclass>(env->NewGlobalRef(env->FindClass(name.c_str())));
  CHECK(clazz);
  return clazz;
}

JNIEnv * fizz::jni::getEnv

(

bool *

shouldDetach

)

Definition at line 23 of file JniUtils.cpp.

Referenced by fizz::JavaCryptoPeerCert::getIdentity(), fizz::JavaCryptoPeerCert::JavaCryptoPeerCert(), and fizz::JavaCryptoPeerCert::verify().

                                   {
  *shouldDetach = false;

  JNIEnv* env;
  auto status = vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
  CHECK(status == JNI_OK || status == JNI_EDETACHED);

  if (status == JNI_EDETACHED) {
    status = vm->AttachCurrentThread(
        reinterpret_cast<void**>(&env), nullptr /*args*/);
    CHECK_EQ(status, JNI_OK);
    *shouldDetach = true;
  }

  return env;
}

jmethodID fizz::jni::getMethodID	(	JNIEnv *	env,
		jclass	clazz,
		const std::string &	name,
		const std::string &	signature
	)

Definition at line 53 of file JniUtils.cpp.

Referenced by fizz::JavaCryptoPeerCert::onLoad().

                                {
  auto methodId = env->GetMethodID(clazz, name.c_str(), signature.c_str());
  CHECK(methodId);
  return methodId;
}

void fizz::jni::maybeThrowException	(	JNIEnv *	env,
		bool	shouldDetach
	)

Definition at line 63 of file JniUtils.cpp.

References releaseEnv().

Referenced by fizz::JavaCryptoPeerCert::getIdentity(), fizz::JavaCryptoPeerCert::JavaCryptoPeerCert(), and fizz::JavaCryptoPeerCert::verify().

                                                         {
  if (!env->ExceptionCheck()) {
    return;
  }
  env->ExceptionDescribe();
  releaseEnv(shouldDetach);
  throw std::runtime_error("JNI exception");
}

void fizz::jni::releaseEnv

(

bool

shouldDetach

)

Definition at line 40 of file JniUtils.cpp.

Referenced by fizz::JavaCryptoPeerCert::getIdentity(), fizz::JavaCryptoPeerCert::JavaCryptoPeerCert(), maybeThrowException(), and fizz::JavaCryptoPeerCert::verify().

                                   {
  if (shouldDetach) {
    vm->DetachCurrentThread();
  }
}

void fizz::jni::setVM

(

JavaVM *

jvm

)

Definition at line 19 of file JniUtils.cpp.

Referenced by JNI_OnLoad().

                        {
  vm = jvm;
}