diff options
Diffstat (limited to 'absl/time/internal/get_current_time_ios.inc')
-rw-r--r-- | absl/time/internal/get_current_time_ios.inc | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/absl/time/internal/get_current_time_ios.inc b/absl/time/internal/get_current_time_ios.inc deleted file mode 100644 index f3db32bf..00000000 --- a/absl/time/internal/get_current_time_ios.inc +++ /dev/null @@ -1,80 +0,0 @@ -#include "absl/time/clock.h" - -#include <sys/time.h> -#include <ctime> -#include <cstdint> - -#include "absl/base/internal/raw_logging.h" - -// These are not defined in the Xcode 7.3.1 SDK Headers. -// Once we are no longer supporting Xcode 7.3.1 we can -// remove these. -#ifndef __WATCHOS_3_0 -#define __WATCHOS_3_0 30000 -#endif - -#ifndef __TVOS_10_0 -#define __TVOS_10_0 100000 -#endif - -#ifndef __IPHONE_10_0 -#define __IPHONE_10_0 100000 -#endif - -#ifndef __MAC_10_12 -#define __MAC_10_12 101200 -#endif - -namespace absl { -namespace time_internal { - -static int64_t GetCurrentTimeNanosFromSystem() { -#if (__MAC_OS_X_VERSION_MAX_ALLOWED >= __MAC_10_12) || \ - (__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0) || \ - (__WATCH_OS_VERSION_MAX_ALLOWED >= __WATCHOS_3_0) || \ - (__TV_OS_VERSION_MAX_ALLOWED >= __TVOS_10_0) - // clock_gettime_nsec_np is not defined on SDKs before Xcode 8.0. - // This preprocessor logic is based upon __CLOCK_AVAILABILITY in - // usr/include/time.h. Once we are no longer supporting Xcode 7.3.1 we can - // remove this #if. - // We must continue to check if it is defined until we are sure that ALL the - // platforms we are shipping on support it. - // clock_gettime_nsec_np is preferred because it may give higher accuracy than - // gettimeofday in future Apple operating systems. - // Currently (macOS 10.12/iOS 10.2) clock_gettime_nsec_np accuracy is - // microsecond accuracy (i.e. equivalent to gettimeofday). - if (&clock_gettime_nsec_np != nullptr) { - return clock_gettime_nsec_np(CLOCK_REALTIME); - } -#endif -#if (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ - (__MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_12)) || \ - (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && \ - (__IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_10_0)) || \ - (defined(__WATCH_OS_VERSION_MIN_REQUIRED) && \ - (__WATCH_OS_VERSION_MIN_REQUIRED < __WATCHOS_3_0)) || \ - (defined(__TV_OS_VERSION_MIN_REQUIRED) && \ - (__TV_OS_VERSION_MIN_REQUIRED < __TVOS_10_0)) - // We need this block in 2 different cases: - // a) where we are compiling with Xcode 7 in which case the block above - // will not be compiled in, and this is the only block executed. - // b) where we are compiling with Xcode 8+ but supporting operating systems - // that do not define clock_gettime_nsec_np, so this is in effect - // an else block to the block above. - // This block will not be compiled if the min supported version is - // guaranteed to supply clock_gettime_nsec_np. - // - // Once we know that clock_gettime_nsec_np is in the SDK *AND* exists on - // all the platforms we support, we can remove both this block and alter the - // block above to just call clock_gettime_nsec_np directly. - const int64_t kNanosPerSecond = 1000 * 1000 * 1000; - const int64_t kNanosPerMicrosecond = 1000; - struct timeval tp; - ABSL_RAW_CHECK(gettimeofday(&tp, nullptr) == 0, "Failed gettimeofday"); - return (int64_t{tp.tv_sec} * kNanosPerSecond + - int64_t{tp.tv_usec} * kNanosPerMicrosecond); -#endif -} - -} // namespace time_internal -} // namespace absl |