You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.2 KiB
85 lines
2.2 KiB
/*
|
|
* Copyright (C) 2010 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.
|
|
*/
|
|
|
|
#ifndef SCOPED_UTF_CHARS_H_included
|
|
#define SCOPED_UTF_CHARS_H_included
|
|
|
|
#include <string.h>
|
|
#include <jni.h>
|
|
|
|
#include "android-base/logging.h"
|
|
|
|
// This file was copied with some minor modifications from libnativehelper.
|
|
// As soon as libnativehelper can be compiled for Windows, this file should be
|
|
// replaced with libnativehelper's implementation.
|
|
class ScopedUtfChars {
|
|
public:
|
|
ScopedUtfChars(JNIEnv* env, jstring s) : env_(env), string_(s) {
|
|
CHECK(s != nullptr);
|
|
utf_chars_ = env->GetStringUTFChars(s, nullptr);
|
|
}
|
|
|
|
ScopedUtfChars(ScopedUtfChars&& rhs) :
|
|
env_(rhs.env_), string_(rhs.string_), utf_chars_(rhs.utf_chars_) {
|
|
rhs.env_ = nullptr;
|
|
rhs.string_ = nullptr;
|
|
rhs.utf_chars_ = nullptr;
|
|
}
|
|
|
|
~ScopedUtfChars() {
|
|
if (utf_chars_) {
|
|
env_->ReleaseStringUTFChars(string_, utf_chars_);
|
|
}
|
|
}
|
|
|
|
ScopedUtfChars& operator=(ScopedUtfChars&& rhs) {
|
|
if (this != &rhs) {
|
|
// Delete the currently owned UTF chars.
|
|
this->~ScopedUtfChars();
|
|
|
|
// Move the rhs ScopedUtfChars and zero it out.
|
|
env_ = rhs.env_;
|
|
string_ = rhs.string_;
|
|
utf_chars_ = rhs.utf_chars_;
|
|
rhs.env_ = nullptr;
|
|
rhs.string_ = nullptr;
|
|
rhs.utf_chars_ = nullptr;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
const char* c_str() const {
|
|
return utf_chars_;
|
|
}
|
|
|
|
size_t size() const {
|
|
return strlen(utf_chars_);
|
|
}
|
|
|
|
const char& operator[](size_t n) const {
|
|
return utf_chars_[n];
|
|
}
|
|
|
|
private:
|
|
JNIEnv* env_;
|
|
jstring string_;
|
|
const char* utf_chars_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(ScopedUtfChars);
|
|
};
|
|
|
|
#endif // SCOPED_UTF_CHARS_H_included
|