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merge(3p/absl): subtree merge of Abseil up to e19260f

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... notably, this includes Abseil's own StatusOr type, which
conflicted with our implementation (that was taken from TensorFlow).

Change-Id: Ie7d6764b64055caaeb8dc7b6b9d066291e6b538f
This commit is contained in:
Vincent Ambo 2020-11-21 14:43:54 +01:00
parent cc27324d02
commit 082c006c04
854 changed files with 11260 additions and 5296 deletions
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10
third_party/abseil_cpp/absl/synchronization/internal/waiter.h vendored
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@ -36,6 +36,7 @@
#include <cstdint>
#include "absl/base/internal/thread_identity.h"
#include "absl/synchronization/internal/futex.h"
#include "absl/synchronization/internal/kernel_timeout.h"
// May be chosen at compile time via -DABSL_FORCE_WAITER_MODE=<index>
@ -48,12 +49,7 @@
#define ABSL_WAITER_MODE ABSL_FORCE_WAITER_MODE
#elif defined(_WIN32) && _WIN32_WINNT >= _WIN32_WINNT_VISTA
#define ABSL_WAITER_MODE ABSL_WAITER_MODE_WIN32
#elif defined(__BIONIC__)
// Bionic supports all the futex operations we need even when some of the futex
// definitions are missing.
#define ABSL_WAITER_MODE ABSL_WAITER_MODE_FUTEX
#elif defined(__linux__) && defined(FUTEX_CLOCK_REALTIME)
// FUTEX_CLOCK_REALTIME requires Linux >= 2.6.28.
#elif defined(ABSL_INTERNAL_HAVE_FUTEX)
#define ABSL_WAITER_MODE ABSL_WAITER_MODE_FUTEX
#elif defined(ABSL_HAVE_SEMAPHORE_H)
#define ABSL_WAITER_MODE ABSL_WAITER_MODE_SEM
@ -100,7 +96,7 @@ class Waiter {
}
// How many periods to remain idle before releasing resources
#ifndef THREAD_SANITIZER
#ifndef ABSL_HAVE_THREAD_SANITIZER
static constexpr int kIdlePeriods = 60;
#else
// Memory consumption under ThreadSanitizer is a serious concern,