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[host/common] windows: provide delayExecution via nsleep

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This change moves this platform specific sleep to `common` as the OS
agnostic `nsleep` function.

Ref PR #661
This commit is contained in:
Geoffrey McRae
2021-07-26 16:36:56 +10:00
parent 120fe63c0f
commit 5f5f497cbd
9 changed files with 59 additions and 107 deletions
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32
common/include/common/time.h
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@@ -25,6 +25,13 @@
#if defined(_WIN32)
#include <windows.h>
void windowsSetTimerResolution(void);
NTSYSCALLAPI NTSTATUS NTAPI NtDelayExecution(
_In_ BOOLEAN Alertable,
_In_opt_ PLARGE_INTEGER DelayInterval
);
#else
#include <time.h>
#include <stdint.h>
@@ -49,6 +56,21 @@ static inline uint64_t microtime(void)
#endif
}
static inline void nsleep(uint64_t ns)
{
#if defined(_WIN32)
LARGE_INTEGER interval = { .QuadPart = -(int64_t)(ns / 100LL) };
NtDelayExecution(FALSE, &interval);
#else
const struct timespec ts =
{
.tv_sec = ns / 1e9,
.tv_nsec = ns - ((ns / 1e9) * 1e9)
};
nanosleep(&ts, NULL);
#endif
}
#if !defined(_WIN32)
//FIXME: make win32 versions
static inline uint64_t nanotime(void)
@@ -58,16 +80,6 @@ static inline uint64_t nanotime(void)
return ((uint64_t)time.tv_sec * 1000000000LL) + time.tv_nsec;
}
static inline void nsleep(uint64_t ns)
{
const struct timespec ts =
{
.tv_sec = ns / 1e9,
.tv_nsec = ns - ((ns / 1e9) * 1e9)
};
nanosleep(&ts, NULL);
}
static inline void tsDiff(struct timespec *diff, const struct timespec *left,
const struct timespec *right)
{