os: use syscall.Timespec.Unix

Use the syscall method instead of repeating the type conversions for each OS.

Change-Id: I1db975b3aaa189cf724d7b1b7c5c41bc64dd964d
Reviewed-on: https://go-review.googlesource.com/c/go/+/374574
Trust: Ian Lance Taylor <[email protected]>
Run-TryBot: Ian Lance Taylor <[email protected]>
Reviewed-by: Emmanuel Odeke <[email protected]>
Reviewed-by: Tobias Klauser <[email protected]>

Author: ianlancetaylor

src/os/stat_darwin.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtimespec)
+	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK, syscall.S_IFWHT:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atimespec)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atimespec.Unix())
 }

src/os/stat_dragonfly.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, ts.Nsec)
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }

src/os/stat_freebsd.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtimespec)
+	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atimespec)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atimespec.Unix())
 }

src/os/stat_js.go

@@ -14,7 +14,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtime, fs.sys.MtimeNsec)
+	fs.modTime = time.Unix(fs.sys.Mtime, fs.sys.MtimeNsec)
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -43,12 +43,8 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(sec, nsec int64) time.Time {
-	return time.Unix(sec, nsec)
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
 	st := fi.Sys().(*syscall.Stat_t)
-	return timespecToTime(st.Atime, st.AtimeNsec)
+	return time.Unix(st.Atime, st.AtimeNsec)
 }

src/os/stat_linux.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(int64(ts.Sec), int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }

src/os/stat_netbsd.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtimespec)
+	fs.modTime = time.Unix(fs.sys.Mtimespec.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atimespec)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atimespec.Unix())
 }

src/os/stat_openbsd.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, int64(ts.Nsec))
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }

src/os/stat_solaris.go

@@ -12,7 +12,7 @@ import (
 func fillFileStatFromSys(fs *fileStat, name string) {
 	fs.name = basename(name)
 	fs.size = fs.sys.Size
-	fs.modTime = timespecToTime(fs.sys.Mtim)
+	fs.modTime = time.Unix(fs.sys.Mtim.Unix())
 	fs.mode = FileMode(fs.sys.Mode & 0777)
 	switch fs.sys.Mode & syscall.S_IFMT {
 	case syscall.S_IFBLK:
@@ -41,11 +41,7 @@ func fillFileStatFromSys(fs *fileStat, name string) {
 	}
 }
 
-func timespecToTime(ts syscall.Timespec) time.Time {
-	return time.Unix(ts.Sec, ts.Nsec)
-}
-
 // For testing.
 func atime(fi FileInfo) time.Time {
-	return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
+	return time.Unix(fi.Sys().(*syscall.Stat_t).Atim.Unix())
 }