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40 lines
986 B
Go
40 lines
986 B
Go
package timespec
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/*
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#include <time.h>
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*/
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import "C"
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import (
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"unsafe"
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"golang.org/x/sys/unix"
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)
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// Timespec behaves similarly to C's struct timespec.
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// Timespec is used to retain fidelity to the C based file systems
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// apis that could be lossy with the use of Go time types.
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type Timespec unix.Timespec
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// CTimespecPtr is an unsafe pointer wrapping C's `struct timespec`.
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type CTimespecPtr unsafe.Pointer
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// CStructToTimespec creates a new Timespec for the C 'struct timespec'.
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func CStructToTimespec(cts CTimespecPtr) Timespec {
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t := (*C.struct_timespec)(cts)
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return Timespec{
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Sec: int64(t.tv_sec),
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Nsec: int64(t.tv_nsec),
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}
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}
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// CopyToCStruct copies the time values from a Timespec to a previously
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// allocated C `struct timespec`. Due to restrictions on Cgo the C pointer
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// must be passed via the CTimespecPtr wrapper.
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func CopyToCStruct(ts Timespec, cts CTimespecPtr) {
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t := (*C.struct_timespec)(cts)
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t.tv_sec = C.time_t(ts.Sec)
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t.tv_nsec = C.long(ts.Nsec)
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}
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