Function IsThreadNowSupported

src/butil/time/time.h:636–638

FIXME(gejun): CLOCK_THREAD_CPUTIME_ID behaves differently in different glibc. To avoid potential bug, disable ThreadNow() always. Returns true if ThreadNow() is supported on this system.

  // glibc. To avoid potential bug, disable ThreadNow() always.
  // Returns true if ThreadNow() is supported on this system.
  static bool IsThreadNowSupported() {
      return false;
  }

  // Returns thread-specific CPU-time on systems that support this feature.
  // Needs to be guarded with a call to IsThreadNowSupported(). Use this timer