| /* |
| * 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 |