Template for directory name, as in g_mkdtemp(), basename only, or %NULL for a default template
Return: The actual name used. This string should be freed with g_free() when not needed any longer and is is in the GLib file name encoding. In case of errors, %NULL is returned and @error will be set.
GException on failure.
2.30
Creates a subdirectory in the preferred directory for temporary files (as returned by g_get_tmp_dir()).
@tmpl should be a string in the GLib file name encoding containing a sequence of six 'X' characters, as the parameter to g_mkstemp(). However, unlike these functions, the template should only be a basename, no directory components are allowed. If template is %NULL, a default template is used.
Note that in contrast to g_mkdtemp() (and mkdtemp()) @tmpl is not modified, and might thus be a read-only literal string.