87 lines
2 KiB
C++
87 lines
2 KiB
C++
/*
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* Copyright (C) 2013 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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#include <fcntl.h>
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#include <unistd.h>
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#include "private/bionic_macros.h"
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template <typename T = int (*)(char*)>
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class GenericTemporaryFile {
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public:
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GenericTemporaryFile(T mk_fn = mkstemp) : mk_fn(mk_fn) {
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// Since we might be running on the host or the target, and if we're
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// running on the host we might be running under bionic or glibc,
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// let's just try both possible temporary directories and take the
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// first one that works.
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init("/data/local/tmp");
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if (fd == -1) {
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init("/tmp");
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}
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}
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GenericTemporaryFile(const char* dirpath, T mk_fn = mkstemp) : mk_fn(mk_fn) {
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init(dirpath);
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}
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~GenericTemporaryFile() {
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close(fd);
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unlink(filename);
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}
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void reopen() {
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close(fd);
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fd = open(filename, O_RDWR);
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}
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int fd;
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char filename[1024];
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private:
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T mk_fn;
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void init(const char* tmp_dir) {
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snprintf(filename, sizeof(filename), "%s/TemporaryFile-XXXXXX", tmp_dir);
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fd = mk_fn(filename);
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}
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DISALLOW_COPY_AND_ASSIGN(GenericTemporaryFile);
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};
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typedef GenericTemporaryFile<> TemporaryFile;
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class TemporaryDir {
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public:
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TemporaryDir() {
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if (!init("/data/local/tmp")) {
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init("/tmp");
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}
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}
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~TemporaryDir() {
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rmdir(dirname);
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}
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char dirname[1024];
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private:
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bool init(const char* tmp_dir) {
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snprintf(dirname, sizeof(dirname), "%s/TemporaryDir-XXXXXX", tmp_dir);
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return (mkdtemp(dirname) != NULL);
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}
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DISALLOW_COPY_AND_ASSIGN(TemporaryDir);
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};
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