From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Wed, 18 Nov 2020 09:53:13 +0000 (+0100)
Subject: Define simgrid::xbt::Path::get_tmpdir().
X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/1b0c79654be70819eb6fb89c05d03cf93d644376?hp=993909b72707e2fc73723a3a8d5f308ef0b21fd5

Define simgrid::xbt::Path::get_tmpdir().
---

diff --git a/include/xbt/file.hpp b/include/xbt/file.hpp
index afb262290b..fd29ff0eb8 100644
--- a/include/xbt/file.hpp
+++ b/include/xbt/file.hpp
@@ -34,6 +34,9 @@ public:
   /** @brief Returns the file component of a path (reimplementation of POSIX basename) */
   std::string get_base_name() const;
 
+  /** @brief Returns the name of a directory suitable for creating temporary files (e.g. "/tmp") */
+  static Path get_tmpdir();
+
 private:
   std::string path_;
 };
diff --git a/src/xbt/xbt_os_file.cpp b/src/xbt/xbt_os_file.cpp
index 32c7004e05..34caff56c0 100644
--- a/src/xbt/xbt_os_file.cpp
+++ b/src/xbt/xbt_os_file.cpp
@@ -93,3 +93,13 @@ std::string simgrid::xbt::Path::get_base_name() const
   std::string p(path_);
   return basename(&p[0]);
 }
+
+simgrid::xbt::Path simgrid::xbt::Path::get_tmpdir()
+{
+  for (const char* name : {"TMPDIR", "TMP", "TEMP", "TEMPDIR"}) {
+    char* val = getenv(name);
+    if (val != nullptr)
+      return Path(val);
+  }
+  return Path("/tmp");
+}