base/guid.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef BASE_GUID_H_
   6 #define BASE_GUID_H_
   7
   8 #include <string>
   9
  10 #include "base/base_export.h"
  11 #include "base/basictypes.h"
  12 #include "build/build_config.h"
  13
  14 namespace base {
  15
  16 // Generate a 128-bit random GUID of the form: "%08X-%04X-%04X-%04X-%012llX".
  17 // If GUID generation fails an empty string is returned.
  18 // The POSIX implementation uses psuedo random number generation to create
  19 // the GUID.  The Windows implementation uses system services.
  20 BASE_EXPORT std::string GenerateGUID();
  21
  22 // Returns true if the input string conforms to the GUID format.
  23 BASE_EXPORT bool IsValidGUID(const std::string& guid);
  24
  25 #if defined(OS_POSIX)
  26 // For unit testing purposes only.  Do not use outside of tests.
  27 BASE_EXPORT std::string RandomDataToGUIDString(const uint64 bytes[2]);
  28 #endif
  29
  30 }  // namespace base
  31
  32 #endif  // BASE_GUID_H_