Add xxhash

third_party/xxhash/cli/xsum_output.h

@@ -0,0 +1,62 @@
+/*
+ * xxhsum - Command line interface for xxhash algorithms
+ * Copyright (C) 2013-2021 Yann Collet
+ *
+ * GPL v2 License
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * You can contact the author at:
+ *   - xxHash homepage: https://www.xxhash.com
+ *   - xxHash source repository: https://github.com/Cyan4973/xxHash
+ */
+
+#ifndef XSUM_OUTPUT_H
+#define XSUM_OUTPUT_H
+
+#include "xsum_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * How verbose the output is.
+ */
+extern int XSUM_logLevel;
+
+/*
+ * Same as fprintf(stderr, format, ...)
+ */
+XSUM_ATTRIBUTE((__format__(__printf__, 1, 2)))
+XSUM_API int XSUM_log(const char *format, ...);
+
+/*
+ * Like XSUM_log, but only outputs if XSUM_logLevel >= minLevel.
+ */
+XSUM_ATTRIBUTE((__format__(__printf__, 2, 3)))
+XSUM_API int XSUM_logVerbose(int minLevel, const char *format, ...);
+
+/*
+ * Same as printf(format, ...)
+ */
+XSUM_ATTRIBUTE((__format__(__printf__, 1, 2)))
+XSUM_API int XSUM_output(const char *format, ...);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* XSUM_OUTPUT_H */