Mike Lockwood | b01e8bf | 2011-08-29 20:11:07 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "SerialServiceJNI" |
| 18 | #include "utils/Log.h" |
| 19 | |
| 20 | #include "jni.h" |
| 21 | #include "JNIHelp.h" |
| 22 | #include "android_runtime/AndroidRuntime.h" |
| 23 | |
| 24 | #include <sys/types.h> |
| 25 | #include <sys/stat.h> |
| 26 | #include <fcntl.h> |
| 27 | |
| 28 | namespace android |
| 29 | { |
| 30 | |
| 31 | static struct parcel_file_descriptor_offsets_t |
| 32 | { |
| 33 | jclass mClass; |
| 34 | jmethodID mConstructor; |
| 35 | } gParcelFileDescriptorOffsets; |
| 36 | |
Andreas Gampe | 26872f4 | 2014-09-24 21:39:34 -0700 | [diff] [blame] | 37 | static jobject android_server_SerialService_open(JNIEnv *env, jobject /* thiz */, jstring path) |
Mike Lockwood | b01e8bf | 2011-08-29 20:11:07 -0400 | [diff] [blame] | 38 | { |
| 39 | const char *pathStr = env->GetStringUTFChars(path, NULL); |
| 40 | |
| 41 | int fd = open(pathStr, O_RDWR | O_NOCTTY); |
| 42 | if (fd < 0) { |
| 43 | ALOGE("could not open %s", pathStr); |
| 44 | env->ReleaseStringUTFChars(path, pathStr); |
| 45 | return NULL; |
| 46 | } |
| 47 | env->ReleaseStringUTFChars(path, pathStr); |
| 48 | |
| 49 | jobject fileDescriptor = jniCreateFileDescriptor(env, fd); |
| 50 | if (fileDescriptor == NULL) { |
| 51 | return NULL; |
| 52 | } |
| 53 | return env->NewObject(gParcelFileDescriptorOffsets.mClass, |
| 54 | gParcelFileDescriptorOffsets.mConstructor, fileDescriptor); |
| 55 | } |
| 56 | |
| 57 | |
Daniel Micay | 76f6a86 | 2015-09-19 17:31:01 -0400 | [diff] [blame] | 58 | static const JNINativeMethod method_table[] = { |
Mike Lockwood | b01e8bf | 2011-08-29 20:11:07 -0400 | [diff] [blame] | 59 | { "native_open", "(Ljava/lang/String;)Landroid/os/ParcelFileDescriptor;", |
| 60 | (void*)android_server_SerialService_open }, |
| 61 | }; |
| 62 | |
| 63 | int register_android_server_SerialService(JNIEnv *env) |
| 64 | { |
| 65 | jclass clazz = env->FindClass("com/android/server/SerialService"); |
| 66 | if (clazz == NULL) { |
| 67 | ALOGE("Can't find com/android/server/SerialService"); |
| 68 | return -1; |
| 69 | } |
| 70 | |
| 71 | clazz = env->FindClass("android/os/ParcelFileDescriptor"); |
| 72 | LOG_FATAL_IF(clazz == NULL, "Unable to find class android.os.ParcelFileDescriptor"); |
| 73 | gParcelFileDescriptorOffsets.mClass = (jclass) env->NewGlobalRef(clazz); |
| 74 | gParcelFileDescriptorOffsets.mConstructor = env->GetMethodID(clazz, "<init>", "(Ljava/io/FileDescriptor;)V"); |
| 75 | LOG_FATAL_IF(gParcelFileDescriptorOffsets.mConstructor == NULL, |
| 76 | "Unable to find constructor for android.os.ParcelFileDescriptor"); |
| 77 | |
| 78 | return jniRegisterNativeMethods(env, "com/android/server/SerialService", |
| 79 | method_table, NELEM(method_table)); |
| 80 | } |
| 81 | |
| 82 | }; |