Method getTempDir

src/com/sun/jna/Native.java:1388–1430

Obtain a directory suitable for writing JNA-specific temporary files. Override with jna.tmpdir

()

        Override with <code>jna.tmpdir</code>
    */
    static File getTempDir() throws IOException {
        File jnatmp;
        String prop = System.getProperty("jna.tmpdir");
        if (prop != null) {
            jnatmp = new File(prop);
            jnatmp.mkdirs();
        }
        else {
            File tmp = new File(System.getProperty("java.io.tmpdir"));
            if(Platform.isMac()) {
                // https://developer.apple.com/library/archive/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/MacOSXDirectories/MacOSXDirectories.html
                jnatmp = new File(System.getProperty("user.home"), "Library/Caches/JNA/temp");
            } else if (Platform.isLinux() || Platform.isSolaris() || Platform.isAIX() || Platform.isDragonFlyBSD() || Platform.isFreeBSD() || Platform.isNetBSD() || Platform.isOpenBSD() || Platform.iskFreeBSD()) {
                // https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
                // The XDG_CACHE_DIR is expected to be per user
                String xdgCacheEnvironment = System.getenv("XDG_CACHE_HOME");
                File xdgCacheFile;
                if(xdgCacheEnvironment == null || xdgCacheEnvironment.trim().isEmpty()) {
                    xdgCacheFile = new File(System.getProperty("user.home"), ".cache");
                } else {
                    xdgCacheFile = new File(xdgCacheEnvironment);
                }
                jnatmp = new File(xdgCacheFile, "JNA/temp");
            } else {
                // Loading DLLs via System.load() under a directory with a unicode
                // name will fail on windows, so use a hash code of the user's
                // name in case the user's name contains non-ASCII characters
                jnatmp = new File(tmp, "jna-" + System.getProperty("user.name").hashCode());
            }

            jnatmp.mkdirs();
            if (!jnatmp.exists() || !jnatmp.canWrite()) {
                jnatmp = tmp;
            }
        }
        if (!jnatmp.exists()) {
            throw new IOException("JNA temporary directory '" + jnatmp + "' does not exist");
        }
        if (!jnatmp.canWrite()) {
            throw new IOException("JNA temporary directory '" + jnatmp + "' is not writable");
        }
        return jnatmp;
    }

    /** Remove all marked temporary files in the given directory. */
    static void removeTemporaryFiles() throws IOException {