diff options
| author | Schrodinger ZHU Yifan <yifanzhu@rochester.edu> | 2024-05-09 16:34:45 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-09 16:34:45 -0400 |
| commit | 8ac928fea8d561261133e0337a2777fcda99f7ba (patch) | |
| tree | 3d7b75eea7f0bcf25f7a28f3d36d32157a02b626 /libc/src/time/linux/clock.cpp | |
| parent | 75ebcbf24abb2e5b045ec920bc86f667516e4cc6 (diff) | |
[libc][NFC] adjust time related implementations (#91485)
Diffstat (limited to 'libc/src/time/linux/clock.cpp')
| -rw-r--r-- | libc/src/time/linux/clock.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/libc/src/time/linux/clock.cpp b/libc/src/time/linux/clock.cpp index 1e95f0526bc9..fc48e2792747 100644 --- a/libc/src/time/linux/clock.cpp +++ b/libc/src/time/linux/clock.cpp @@ -7,21 +7,19 @@ //===----------------------------------------------------------------------===// #include "src/time/clock.h" - +#include "hdr/time_macros.h" #include "src/__support/CPP/limits.h" -#include "src/__support/OSUtil/syscall.h" // For internal syscall function. #include "src/__support/common.h" +#include "src/__support/time/clock_gettime.h" +#include "src/__support/time/units.h" #include "src/errno/libc_errno.h" -#include "src/time/linux/clockGetTimeImpl.h" - -#include <sys/syscall.h> // For syscall numbers. -#include <time.h> namespace LIBC_NAMESPACE { LLVM_LIBC_FUNCTION(clock_t, clock, ()) { + using namespace time_units; struct timespec ts; - auto result = internal::clock_gettimeimpl(CLOCK_PROCESS_CPUTIME_ID, &ts); + auto result = internal::clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); if (!result.has_value()) { libc_errno = result.error(); return -1; @@ -34,15 +32,15 @@ LLVM_LIBC_FUNCTION(clock_t, clock, ()) { cpp::numeric_limits<clock_t>::max() / CLOCKS_PER_SEC; if (ts.tv_sec > CLOCK_SECS_MAX) return clock_t(-1); - if (ts.tv_nsec / 1000000000 > CLOCK_SECS_MAX - ts.tv_sec) + if (ts.tv_nsec / 1_s_ns > CLOCK_SECS_MAX - ts.tv_sec) return clock_t(-1); // For the integer computation converting tv_nsec to clocks to work // correctly, we want CLOCKS_PER_SEC to be less than 1000000000. - static_assert(1000000000 > CLOCKS_PER_SEC, - "Expected CLOCKS_PER_SEC to be less than 1000000000."); + static_assert(1_s_ns > CLOCKS_PER_SEC, + "Expected CLOCKS_PER_SEC to be less than 1'000'000'000."); return clock_t(ts.tv_sec * CLOCKS_PER_SEC + - ts.tv_nsec / (1000000000 / CLOCKS_PER_SEC)); + ts.tv_nsec / (1_s_ns / CLOCKS_PER_SEC)); } } // namespace LIBC_NAMESPACE |