/* xbt_os_file.cpp -- portable interface to file-related functions */
-/* Copyright (c) 2017-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2017-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "xbt/asserts.h"
#include "xbt/file.hpp" /* this module */
-#ifdef _WIN32
-#include <windows.h>
-#endif
-
#if HAVE_UNISTD_H
+#include <array>
+#include <cerrno>
#include <unistd.h>
#endif
+#include <boost/algorithm/string.hpp>
#include <cstring>
-#include <errno.h>
+#include <fstream>
#include <libgen.h> /* POSIX dirname */
+static std::vector<std::string> file_path;
+
+void simgrid::xbt::path_push(std::string const& str)
+{
+ file_path.push_back(str);
+}
+void simgrid::xbt::path_pop()
+{
+ file_path.pop_back();
+}
+std::string simgrid::xbt::path_to_string()
+{
+ return boost::join(file_path, ":");
+}
+FILE* simgrid::xbt::path_fopen(const std::string& name, const char* mode)
+{
+ if (name[0] == '/') // don't mess with absolute file names
+ return fopen(name.c_str(), mode);
+
+ /* search relative files in the path */
+ for (auto const& path_elm : file_path) {
+ std::string buff = path_elm + "/" + name;
+ FILE* file = fopen(buff.c_str(), mode);
+
+ if (file)
+ return file;
+ }
+ return nullptr;
+}
+
+std::ifstream* simgrid::xbt::path_ifsopen(const std::string& name)
+{
+ xbt_assert(not name.empty());
+
+ auto* fs = new std::ifstream();
+ if (name[0] == '/') // don't mess with absolute file names
+ fs->open(name.c_str(), std::ifstream::in);
+
+ /* search relative files in the path */
+ for (auto const& path_elm : file_path) {
+ std::string buff = path_elm + "/" + name;
+ fs->open(buff.c_str(), std::ifstream::in);
+
+ if (not fs->fail())
+ return fs;
+ }
+
+ return fs;
+}
+
simgrid::xbt::Path::Path()
{
#if HAVE_UNISTD_H
- char buffer[2048];
- const char* ret = getcwd(buffer, 2048);
- xbt_assert(ret == buffer, "Error during getcwd: %s", strerror(errno));
- path_ = std::string(buffer);
+ std::array<char, 2048> buffer;
+ const char* cwd = getcwd(buffer.data(), 2048);
+ xbt_assert(cwd != nullptr, "Error during getcwd: %s", strerror(errno));
+ path_ = cwd;
#else
- path_ = std::string(".");
+ path_ = ".";
#endif
}
std::string simgrid::xbt::Path::get_dir_name() const
{
std::string p(path_);
- const char* res = dirname(&p[0]);
- return std::string(res, strlen(res));
+ return dirname(&p[0]);
}
std::string simgrid::xbt::Path::get_base_name() const
{
std::string p(path_);
- const char* res = basename(&p[0]);
- return std::string(res, strlen(res));
+ return basename(&p[0]);
}