platform_bionic/libc/private/ErrnoRestorer.h
Elliott Hughes 3e898476c7 Revert "Revert "More pthreads cleanup.""
This reverts commit 6f94de3ca4

(Doesn't try to increase the number of TLS slots; that leads to
an inability to boot. Adds more tests.)

Change-Id: Ia7d25ba3995219ed6e686463dbba80c95cc831ca
2013-02-12 15:27:18 -08:00

43 lines
1 KiB
C++

/*
* Copyright (C) 2013 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 ERRNO_RESTORER_H
#define ERRNO_RESTORER_H
#include <errno.h>
class ErrnoRestorer {
public:
explicit ErrnoRestorer() : saved_errno_(errno) {
}
~ErrnoRestorer() {
errno = saved_errno_;
}
void override(int new_errno) {
saved_errno_ = new_errno;
}
private:
int saved_errno_;
// Disallow copy and assignment.
ErrnoRestorer(const ErrnoRestorer&);
void operator=(const ErrnoRestorer&);
};
#endif // ERRNO_RESTORER_H