merge with the final version of libmdbx

1 files changed, 19 insertions, 0 deletions

diff --git a/plugins/Dbx_mdbx/src/libmdbx/test/osal-unix.cc b/plugins/Dbx_mdbx/src/libmdbx/test/osal-unix.cc
index 7625e0f419..8132e267ef 100644
--- a/plugins/Dbx_mdbx/src/libmdbx/test/osal-unix.cc
+++ b/plugins/Dbx_mdbx/src/libmdbx/test/osal-unix.cc
@@ -272,3 +272,22 @@ void osal_udelay(unsigned us) {
 }
 
 bool osal_istty(int fd) { return isatty(fd) == 1; }
+
+std::string osal_tempdir(void) {
+  const char *tempdir = getenv("TMPDIR");
+  if (!tempdir)
+    tempdir = getenv("TMP");
+  if (!tempdir)
+    tempdir = getenv("TEMPDIR");
+  if (!tempdir)
+    tempdir = getenv("TEMP");
+  if (tempdir) {
+    std::string dir(tempdir);
+    if (!dir.empty() && dir.at(dir.length() - 1) != '/')
+      dir.append("/");
+    return dir;
+  }
+  if (access("/dev/shm/", R_OK | W_OK | X_OK) == 0)
+    return "/dev/shm/";
+  return "";
+}