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win: return fractional seconds in uv_uptime() (#3455)

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Some systems return fractional seconds, some return full seconds.
On Windows uptime was artificially rounded down.

Fixes #3447.
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Luca Adrian L 2022-02-08 14:23:39 +01:00 committed by GitHub
parent de24da8c11
commit 50c1d00839
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 3 additions and 3 deletions
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2
docs/src/misc.rst
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@ -312,7 +312,7 @@ API
.. c:function:: int uv_uptime(double* uptime)
Gets the current system uptime.
Gets the current system uptime. Depending on the system full or fractional seconds are returned.
.. c:function:: int uv_getrusage(uv_rusage_t* rusage)

4
src/win/util.c
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@ -608,8 +608,8 @@ int uv_uptime(double* uptime) {
BYTE* address = (BYTE*) object_type + object_type->DefinitionLength +
counter_definition->CounterOffset;
uint64_t value = *((uint64_t*) address);
*uptime = floor((double) (object_type->PerfTime.QuadPart - value) /
(double) object_type->PerfFreq.QuadPart);
*uptime = (double) (object_type->PerfTime.QuadPart - value) /
(double) object_type->PerfFreq.QuadPart;
uv__free(malloced_buffer);
return 0;
}