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/*
* 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.
*/
#include <fcntl.h>
#include <unistd.h>
#include "private/bionic_macros.h"
template <typename T = int (*)(char*)>
class GenericTemporaryFile {
public:
GenericTemporaryFile(T mk_fn = mkstemp) : mk_fn(mk_fn) {
// Since we might be running on the host or the target, and if we're
// running on the host we might be running under bionic or glibc,
// let's just try both possible temporary directories and take the
// first one that works.
init("/data/local/tmp");
if (fd == -1) {
init("/tmp");
}
}
GenericTemporaryFile(const char* dirpath, T mk_fn = mkstemp) : mk_fn(mk_fn) {
init(dirpath);
}
~GenericTemporaryFile() {
close(fd);
unlink(filename);
}
void reopen() {
close(fd);
fd = open(filename, O_RDWR);
}
int fd;
char filename[1024];
private:
T mk_fn;
void init(const char* tmp_dir) {
snprintf(filename, sizeof(filename), "%s/TemporaryFile-XXXXXX", tmp_dir);
fd = mk_fn(filename);
}
DISALLOW_COPY_AND_ASSIGN(GenericTemporaryFile);
};
typedef GenericTemporaryFile<> TemporaryFile;
class TemporaryDir {
public:
TemporaryDir() {
if (!init("/data/local/tmp")) {
init("/tmp");
}
}
~TemporaryDir() {
rmdir(dirname);
}
char dirname[1024];
private:
bool init(const char* tmp_dir) {
snprintf(dirname, sizeof(dirname), "%s/TemporaryDir-XXXXXX", tmp_dir);
return (mkdtemp(dirname) != NULL);
}
DISALLOW_COPY_AND_ASSIGN(TemporaryDir);
};
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