webm/common/file_util.cc
Vignesh Venkatasubramanian 039df94e87 Add TEST_TMPDIR environment variable
Honor TEST_TMPDIR environment variable for creating temporary test
files in non-windows platforms. This helps in environments where
we cannot create a temporary file in the current directory.

Change-Id: I39e0a19580635d752171e0573dd21ec838cb81a4
2016-04-07 10:55:28 -07:00

79 lines
2.2 KiB
C++

// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
#include "common/file_util.h"
#include <sys/stat.h>
#ifndef _MSC_VER
#include <unistd.h> // close()
#endif
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <ios>
namespace libwebm {
std::string GetTempFileName() {
#if !defined _MSC_VER && !defined __MINGW32__
std::string temp_file_name_template_str =
std::string(std::getenv("TEST_TMPDIR") ? std::getenv("TEST_TMPDIR") :
".") +
"/libwebm_temp.XXXXXX";
char* temp_file_name_template =
new char[temp_file_name_template_str.length() + 1];
memset(temp_file_name_template, 0, temp_file_name_template_str.length() + 1);
temp_file_name_template_str.copy(temp_file_name_template,
temp_file_name_template_str.length(), 0);
int fd = mkstemp(temp_file_name_template);
std::string temp_file_name =
(fd != -1) ? std::string(temp_file_name_template) : std::string();
delete[] temp_file_name_template;
if (fd != -1) {
close(fd);
}
return temp_file_name;
#else
char tmp_file_name[_MAX_PATH];
errno_t err = tmpnam_s(tmp_file_name);
if (err == 0) {
return std::string(tmp_file_name);
}
return std::string();
#endif
}
uint64_t GetFileSize(const std::string& file_name) {
uint64_t file_size = 0;
#ifndef _MSC_VER
struct stat st;
st.st_size = 0;
if (stat(file_name.c_str(), &st) == 0) {
#else
struct _stat st;
st.st_size = 0;
if (_stat(file_name.c_str(), &st) == 0) {
#endif
file_size = st.st_size;
}
return file_size;
}
TempFileDeleter::TempFileDeleter() { file_name_ = GetTempFileName(); }
TempFileDeleter::~TempFileDeleter() {
std::ifstream file(file_name_.c_str());
if (file.good()) {
file.close();
std::remove(file_name_.c_str());
}
}
} // namespace libwebm