Add xxhash

third_party/xxhash/cli/xsum_os_specific.h

@@ -0,0 +1,89 @@
+/*
+ * 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_OS_SPECIFIC_H
+#define XSUM_OS_SPECIFIC_H
+
+#include "xsum_config.h"
+#include <stdio.h>
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Declared here to be implemented in user code.
+ *
+ * Functions like main(), but is passed UTF-8 arguments even on Windows.
+ */
+XSUM_API int XSUM_main(int argc, const char* argv[]);
+
+/*
+ * Returns whether stream is a console.
+ *
+ * Functionally equivalent to isatty(fileno(stream)).
+ */
+XSUM_API int XSUM_isConsole(FILE* stream);
+
+/*
+ * Sets stream to pure binary mode (a.k.a. no CRLF conversions).
+ */
+XSUM_API void XSUM_setBinaryMode(FILE* stream);
+
+/*
+ * Returns whether the file at filename is a directory.
+ */
+XSUM_API int XSUM_isDirectory(const char* filename);
+
+/*
+ * Returns the file size of the file at filename.
+ */
+XSUM_API XSUM_U64 XSUM_getFileSize(const char* filename);
+
+/*
+ * UTF-8 stdio wrappers primarily for Windows
+ */
+
+/*
+ * fopen() wrapper. Accepts UTF-8 filenames on Windows.
+ *
+ * Specifically, on Windows, the arguments will be converted to UTF-16
+ * and passed to _wfopen().
+ */
+XSUM_API FILE* XSUM_fopen(const char* filename, const char* mode);
+
+/*
+ * vfprintf() wrapper which prints UTF-8 strings to Windows consoles
+ * if applicable.
+ */
+XSUM_ATTRIBUTE((__format__(__printf__, 2, 0)))
+XSUM_API int XSUM_vfprintf(FILE* stream, const char* format, va_list ap);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* XSUM_OS_SPECIFIC_H */