/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <android-base/stringprintf.h>
#include <base/logging.h>
#include <nativehelper/ScopedPrimitiveArray.h>
#include <nativehelper/ScopedUtfChars.h>
#include "JavaClassConstants.h"
#include "PeerToPeer.h"
using android::base::StringPrintf;
extern bool nfc_debug_enabled;
namespace android {
/*******************************************************************************
**
** Function: nativeLlcpSocket_doConnect
**
** Description: Establish a connection to the peer.
** e: JVM environment.
** o: Java object.
** nSap: Service access point.
**
** Returns: True if ok.
**
*******************************************************************************/
static jboolean nativeLlcpSocket_doConnect(JNIEnv* e, jobject o, jint nSap) {
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("%s: enter; sap=%d", __func__, nSap);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
bool stat = PeerToPeer::getInstance().connectConnOriented(jniHandle, nSap);
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: exit", __func__);
return stat ? JNI_TRUE : JNI_FALSE;
}
/*******************************************************************************
**
** Function: nativeLlcpSocket_doConnectBy
**
** Description: Establish a connection to the peer.
** e: JVM environment.
** o: Java object.
** sn: Service name.
**
** Returns: True if ok.
**
*******************************************************************************/
static jboolean nativeLlcpSocket_doConnectBy(JNIEnv* e, jobject o, jstring sn) {
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", __func__);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
ScopedUtfChars serviceName(e, sn);
if (serviceName.c_str() == NULL) {
return JNI_FALSE;
}
bool stat = PeerToPeer::getInstance().connectConnOriented(
jniHandle, serviceName.c_str());
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: exit", __func__);
return stat ? JNI_TRUE : JNI_FALSE;
}
/*******************************************************************************
**
** Function: nativeLlcpSocket_doClose
**
** Description: Close socket.
** e: JVM environment.
** o: Java object.
**
** Returns: True if ok.
**
*******************************************************************************/
static jboolean nativeLlcpSocket_doClose(JNIEnv* e, jobject o) {
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", __func__);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
bool stat = PeerToPeer::getInstance().disconnectConnOriented(jniHandle);
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: exit", __func__);
return stat ? JNI_TRUE : JNI_FALSE;
}
/*******************************************************************************
**
** Function: nativeLlcpSocket_doSend
**
** Description: Send data to peer.
** e: JVM environment.
** o: Java object.
** data: Buffer of data.
**
** Returns: True if sent ok.
**
*******************************************************************************/
static jboolean nativeLlcpSocket_doSend(JNIEnv* e, jobject o, jbyteArray data) {
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", __func__);
ScopedByteArrayRO bytes(e, data);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
uint8_t* raw_ptr = const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(
&bytes[0])); // TODO: API bug: send should take const*!
bool stat = PeerToPeer::getInstance().send(jniHandle, raw_ptr, bytes.size());
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: exit", __func__);
return stat ? JNI_TRUE : JNI_FALSE;
}
/*******************************************************************************
**
** Function: nativeLlcpSocket_doReceive
**
** Description: Receive data from peer.
** e: JVM environment.
** o: Java object.
** origBuffer: Buffer to put received data.
**
** Returns: Number of bytes received.
**
*******************************************************************************/
static jint nativeLlcpSocket_doReceive(JNIEnv* e, jobject o,
jbyteArray origBuffer) {
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", __func__);
ScopedByteArrayRW bytes(e, origBuffer);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
uint16_t actualLen = 0;
bool stat = PeerToPeer::getInstance().receive(
jniHandle, reinterpret_cast<uint8_t*>(&bytes[0]), bytes.size(),
actualLen);
jint retval = 0;
if (stat && (actualLen > 0)) {
retval = actualLen;
} else
retval = -1;
DLOG_IF(INFO, nfc_debug_enabled)
<< StringPrintf("%s: exit; actual len=%d", __func__, retval);
return retval;
}
/*******************************************************************************
**
** Function: nativeLlcpSocket_doGetRemoteSocketMIU
**
** Description: Get peer's maximum information unit.
** e: JVM environment.
** o: Java object.
**
** Returns: Peer's maximum information unit.
**
*******************************************************************************/
static jint nativeLlcpSocket_doGetRemoteSocketMIU(JNIEnv* e, jobject o) {
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", __func__);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
jint miu = PeerToPeer::getInstance().getRemoteMaxInfoUnit(jniHandle);
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: exit", __func__);
return miu;
}
/*******************************************************************************
**
** Function: nativeLlcpSocket_doGetRemoteSocketRW
**
** Description: Get peer's receive window size.
** e: JVM environment.
** o: Java object.
**
** Returns: Peer's receive window size.
**
*******************************************************************************/
static jint nativeLlcpSocket_doGetRemoteSocketRW(JNIEnv* e, jobject o) {
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", __func__);
PeerToPeer::tJNI_HANDLE jniHandle =
(PeerToPeer::tJNI_HANDLE)nfc_jni_get_nfc_socket_handle(e, o);
jint rw = PeerToPeer::getInstance().getRemoteRecvWindow(jniHandle);
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: exit", __func__);
return rw;
}
/*****************************************************************************
**
** Description: JNI functions
**
*****************************************************************************/
static JNINativeMethod gMethods[] = {
{"doConnect", "(I)Z", (void*)nativeLlcpSocket_doConnect},
{"doConnectBy", "(Ljava/lang/String;)Z",
(void*)nativeLlcpSocket_doConnectBy},
{"doClose", "()Z", (void*)nativeLlcpSocket_doClose},
{"doSend", "([B)Z", (void*)nativeLlcpSocket_doSend},
{"doReceive", "([B)I", (void*)nativeLlcpSocket_doReceive},
{"doGetRemoteSocketMiu", "()I",
(void*)nativeLlcpSocket_doGetRemoteSocketMIU},
{"doGetRemoteSocketRw", "()I", (void*)nativeLlcpSocket_doGetRemoteSocketRW},
};
/*******************************************************************************
**
** Function: register_com_android_nfc_NativeLlcpSocket
**
** Description: Regisgter JNI functions with Java Virtual Machine.
** e: Environment of JVM.
**
** Returns: Status of registration.
**
*******************************************************************************/
int register_com_android_nfc_NativeLlcpSocket(JNIEnv* e) {
return jniRegisterNativeMethods(e, gNativeLlcpSocketClassName, gMethods,
NELEM(gMethods));
}
} // namespace android