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authorGravatar Abseil Team <absl-team@google.com>2020-02-25 08:48:42 -0800
committerGravatar CJ Johnson <johnsoncj@google.com>2020-02-25 13:12:47 -0500
commit0d5ce2797eb695aee7e019e25323251ef6ffc277 (patch)
treee8f17f3202cce51bcb9f25175349b7a61e7ba664 /absl/base/internal/spinlock_linux.inc
parentb69c7d880caddfc25bf348dbcfe9d45fdd8bc6e6 (diff)
Export of internal Abseil changes
-- 20405fc394419d434d3ea09b2e62e4edcb282421 by Christian Blichmann <cblichmann@google.com>: Include `status` subdirectory in main `CMakeLists.txt` PiperOrigin-RevId: 297125966 -- 101087af9689612bdda679ee0869e5cde4472244 by Matt Kulukundis <kfm@google.com>: Fix typo PiperOrigin-RevId: 296991360 -- 55ff5bc6970d46214c0459d3a7a23973c7dc69b9 by Andy Getzendanner <durandal@google.com>: Extract logging's ErrnoSaver to absl::base_internal and use it in a couple other places. PiperOrigin-RevId: 296969168 -- b7cd7550297d53766576f751436617200c65831b by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 296951474 -- 8c04c73fc53f9a09c3e2400812b931157f35fe07 by Andy Soffer <asoffer@google.com>: Auto-generate list of files in the DLL, and add new build targets to the DLL. PiperOrigin-RevId: 296932061 -- 2f77829e196094f1addefd8ac2ac9e398c5b6100 by Andy Soffer <asoffer@google.com>: Fix bug introduced by DLL where we couldn't build shared libraries on non-windows platforms. Fixes #623 PiperOrigin-RevId: 296919347 -- b768163dbbff0c561b9dff0218a699e5e4fd33f3 by Abseil Team <absl-team@google.com>: typo: microprosessor PiperOrigin-RevId: 296904933 -- b185da0dac44c91855373f0723df9242cbfb3db3 by Matthew Brown <matthewbr@google.com>: Internal cleanup PiperOrigin-RevId: 296509711 GitOrigin-RevId: 20405fc394419d434d3ea09b2e62e4edcb282421 Change-Id: I55c8eba6f353ceb337455ae144ab743ea21edbef
Diffstat (limited to 'absl/base/internal/spinlock_linux.inc')
-rw-r--r--absl/base/internal/spinlock_linux.inc5
1 files changed, 2 insertions, 3 deletions
diff --git a/absl/base/internal/spinlock_linux.inc b/absl/base/internal/spinlock_linux.inc
index 28e29d19..323edd62 100644
--- a/absl/base/internal/spinlock_linux.inc
+++ b/absl/base/internal/spinlock_linux.inc
@@ -19,12 +19,12 @@
#include <unistd.h>
#include <atomic>
-#include <cerrno>
#include <climits>
#include <cstdint>
#include <ctime>
#include "absl/base/attributes.h"
+#include "absl/base/internal/errno_saver.h"
// The SpinLock lockword is `std::atomic<uint32_t>`. Here we assert that
// `std::atomic<uint32_t>` is bitwise equivalent of the `int` expected
@@ -51,12 +51,11 @@ extern "C" {
ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockDelay(
std::atomic<uint32_t> *w, uint32_t value, int loop,
absl::base_internal::SchedulingMode) {
- int save_errno = errno;
+ absl::base_internal::ErrnoSaver errno_saver;
struct timespec tm;
tm.tv_sec = 0;
tm.tv_nsec = absl::base_internal::SpinLockSuggestedDelayNS(loop);
syscall(SYS_futex, w, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, value, &tm);
- errno = save_errno;
}
ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockWake(std::atomic<uint32_t> *w,