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From: Jie Zhou <jizh@linux.microsoft.com>
To: dev@dpdk.org
Cc: dmitry.kozliuk@gmail.com, xiaoyun.li@intel.com, roretzla@microsoft.com,
talshn@nvidia.com, pallavi.kadam@intel.com, thomas@monjalon.net,
bruce.richardson@intel.com, ferruh.yigit@intel.com,
konstantin.ananyev@intel.com, stable@dpdk.org
Date: Mon, 3 May 2021 17:34:03 -0700
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<1620088449-14770-1-git-send-email-jizh@linux.microsoft.com>
Subject: [dpdk-dev] [PATCH v10 04/10] eal/Windows: add clock_gettime on
Windows
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Add clock_gettime on Windows in rte_os_shim.h
Signed-off-by: Jie Zhou <jizh@microsoft.com>
Signed-off-by: Jie Zhou <jizh@linux.microsoft.com>
---
lib/eal/windows/include/rte_os_shim.h | 38 +++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/lib/eal/windows/include/rte_os_shim.h b/lib/eal/windows/include/rte_os_shim.h
index e60f27400..ec1087290 100644
--- a/lib/eal/windows/include/rte_os_shim.h
+++ b/lib/eal/windows/include/rte_os_shim.h
@@ -75,4 +75,42 @@ rte_timespec_get(struct timespec *now, int base)
#endif /* RTE_TOOLCHAIN_GCC */
+/* Identifier for system-wide realtime clock. */
+#define CLOCK_REALTIME 0
+/* Monotonic system-wide clock. */
+#define CLOCK_MONOTONIC 1
+/* High-resolution timer from the CPU. */
+#define CLOCK_PROCESS_CPUTIME_ID 2
+/* Thread-specific CPU-time clock. */
+#define CLOCK_THREAD_CPUTIME_ID 3
+
+#define NS_PER_SEC 1E9
+
+typedef int clockid_t;
+
+static inline int
+rte_clock_gettime(clockid_t clock_id, struct timespec *tp)
+{
+ LARGE_INTEGER pf, pc;
+ LONGLONG nsec;
+ switch (clock_id) {
+ case CLOCK_REALTIME:
+ if (timespec_get(tp, TIME_UTC) != TIME_UTC)
+ return -1;
+ return 0;
+ case CLOCK_MONOTONIC:
+ if (QueryPerformanceFrequency(&pf) == 0)
+ return -1;
+ if (QueryPerformanceCounter(&pc) == 0)
+ return -1;
+ nsec = pc.QuadPart * NS_PER_SEC / pf.QuadPart;
+ tp->tv_sec = nsec / NS_PER_SEC;
+ tp->tv_nsec = nsec - tp->tv_sec * NS_PER_SEC;
+ return 0;
+ default:
+ return -1;
+ }
+}
+#define clock_gettime(clock_id, tp) rte_clock_gettime(clock_id, tp)
+
#endif /* _RTE_OS_SHIM_ */
--
2.30.0.vfs.0.2