125 lines
4.3 KiB
C
125 lines
4.3 KiB
C
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* JNI helper functions.
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*
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* This file may be included by C or C++ code, which is trouble because jni.h
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* uses different typedefs for JNIEnv in each language.
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*/
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#ifndef LIBNATIVEHELPER_INCLUDE_NATIVEHELPER_JNIHELP_H_
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#define LIBNATIVEHELPER_INCLUDE_NATIVEHELPER_JNIHELP_H_
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#include <errno.h>
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#include <unistd.h>
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#include "libnativehelper_api.h"
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#ifndef NELEM
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#define NELEM(x) ((int) (sizeof(x) / sizeof((x)[0])))
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#endif
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/*
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* For C++ code, we provide inlines that map to the C functions. g++ always
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* inlines these, even on non-optimized builds.
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*/
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#if defined(__cplusplus)
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inline int jniRegisterNativeMethods(JNIEnv* env, const char* className, const JNINativeMethod* gMethods, int numMethods) {
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return jniRegisterNativeMethods(&env->functions, className, gMethods, numMethods);
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}
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inline int jniThrowException(JNIEnv* env, const char* className, const char* msg) {
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return jniThrowException(&env->functions, className, msg);
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}
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/*
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* Equivalent to jniThrowException but with a printf-like format string and
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* variable-length argument list. This is only available in C++.
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*/
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inline int jniThrowExceptionFmt(JNIEnv* env, const char* className, const char* fmt, ...) {
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va_list args;
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va_start(args, fmt);
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return jniThrowExceptionFmt(&env->functions, className, fmt, args);
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va_end(args);
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}
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inline int jniThrowNullPointerException(JNIEnv* env, const char* msg) {
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return jniThrowNullPointerException(&env->functions, msg);
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}
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inline int jniThrowRuntimeException(JNIEnv* env, const char* msg) {
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return jniThrowRuntimeException(&env->functions, msg);
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}
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inline int jniThrowIOException(JNIEnv* env, int errnum) {
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return jniThrowIOException(&env->functions, errnum);
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}
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inline jobject jniCreateFileDescriptor(JNIEnv* env, int fd) {
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return jniCreateFileDescriptor(&env->functions, fd);
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}
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inline int jniGetFDFromFileDescriptor(JNIEnv* env, jobject fileDescriptor) {
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return jniGetFDFromFileDescriptor(&env->functions, fileDescriptor);
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}
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inline void jniSetFileDescriptorOfFD(JNIEnv* env, jobject fileDescriptor, int value) {
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jniSetFileDescriptorOfFD(&env->functions, fileDescriptor, value);
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}
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inline jlong jniGetOwnerIdFromFileDescriptor(JNIEnv* env, jobject fileDescriptor) {
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return jniGetOwnerIdFromFileDescriptor(&env->functions, fileDescriptor);
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}
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inline jarray jniGetNioBufferBaseArray(JNIEnv* env, jobject nioBuffer) {
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return jniGetNioBufferBaseArray(&env->functions, nioBuffer);
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}
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inline jint jniGetNioBufferBaseArrayOffset(JNIEnv* env, jobject nioBuffer) {
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return jniGetNioBufferBaseArrayOffset(&env->functions, nioBuffer);
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}
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inline jlong jniGetNioBufferFields(JNIEnv* env, jobject nioBuffer,
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jint* position, jint* limit, jint* elementSizeShift) {
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return jniGetNioBufferFields(&env->functions, nioBuffer,
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position, limit, elementSizeShift);
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}
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inline jlong jniGetNioBufferPointer(JNIEnv* env, jobject nioBuffer) {
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return jniGetNioBufferPointer(&env->functions, nioBuffer);
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}
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inline jobject jniGetReferent(JNIEnv* env, jobject ref) {
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return jniGetReferent(&env->functions, ref);
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}
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inline jstring jniCreateString(JNIEnv* env, const jchar* unicodeChars, jsize len) {
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return jniCreateString(&env->functions, unicodeChars, len);
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}
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inline jstring jniCreateString(JNIEnv* env, const char16_t* unicodeChars, jsize len) {
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return jniCreateString(&env->functions, reinterpret_cast<const jchar*>(unicodeChars), len);
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}
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inline void jniLogException(JNIEnv* env, int priority, const char* tag, jthrowable exception = NULL) {
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jniLogException(&env->functions, priority, tag, exception);
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}
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#endif // defined(__cplusplus)
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#endif // LIBNATIVEHELPER_INCLUDE_NATIVEHELPER_JNIHELP_H_
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