libsanitizer/sanitizer_common/sanitizer_common_libcdep.cc

   1 //===-- sanitizer_common_libcdep.cc ---------------------------------------===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is shared between AddressSanitizer and ThreadSanitizer
   9 // run-time libraries.
  10 //===----------------------------------------------------------------------===//
  11
  12 #include "sanitizer_common.h"
  13
  14 namespace __sanitizer {
  15
  16 bool PrintsToTty() {
  17   MaybeOpenReportFile();
  18   return internal_isatty(report_fd) != 0;
  19 }
  20
  21 bool PrintsToTtyCached() {
  22   // FIXME: Add proper Windows support to AnsiColorDecorator and re-enable color
  23   // printing on Windows.
  24   if (SANITIZER_WINDOWS)
  25     return 0;
  26
  27   static int cached = 0;
  28   static bool prints_to_tty;
  29   if (!cached) {  // Not thread-safe.
  30     prints_to_tty = PrintsToTty();
  31     cached = 1;
  32   }
  33   return prints_to_tty;
  34 }
  35 }  // namespace __sanitizer