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/*
* 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.
*/
#include "os.h"
#include <cstddef>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "base/logging.h"
#include "base/unix_file/fd_file.h"
#include "UniquePtr.h"
namespace art {
File* OS::OpenFileForReading(const char* name) {
return OpenFileWithFlags(name, O_RDONLY);
}
File* OS::OpenFileReadWrite(const char* name) {
return OpenFileWithFlags(name, O_RDWR);
}
File* OS::CreateEmptyFile(const char* name) {
return OpenFileWithFlags(name, O_RDWR | O_CREAT | O_TRUNC);
}
File* OS::OpenFileWithFlags(const char* name, int flags) {
CHECK(name != NULL);
UniquePtr<File> file(new File);
if (!file->Open(name, flags, 0666)) {
return NULL;
}
return file.release();
}
bool OS::FileExists(const char* name) {
struct stat st;
if (stat(name, &st) == 0) {
return S_ISREG(st.st_mode); // TODO: Deal with symlinks?
} else {
return false;
}
}
bool OS::DirectoryExists(const char* name) {
struct stat st;
if (stat(name, &st) == 0) {
return S_ISDIR(st.st_mode); // TODO: Deal with symlinks?
} else {
return false;
}
}
} // namespace art
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