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unix: add race annotations to Pread and Pwrite

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Follow CL 391954 which changed Pread/Pwrite in package syscall.

For golang/go#51618

Change-Id: Icc587c61f083886bb66ca96717f686f56b398e34
Reviewed-on: https://go-review.googlesource.com/c/sys/+/392794
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2022-03-15 19:43:20 +00:00
committed by Tobias Klauser
parent 27bbf83dae
commit 039c03cc5b
51 changed files with 130 additions and 106 deletions
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unix/syscall_unix.go
+24
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@@ -177,6 +177,30 @@ func Write(fd int, p []byte) (n int, err error) {
return
}
func Pread(fd int, p []byte, offset int64) (n int, err error) {
n, err = pread(fd, p, offset)
if raceenabled {
if n > 0 {
raceWriteRange(unsafe.Pointer(&p[0]), n)
}
if err == nil {
raceAcquire(unsafe.Pointer(&ioSync))
}
}
return
}
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
if raceenabled {
raceReleaseMerge(unsafe.Pointer(&ioSync))
}
n, err = pwrite(fd, p, offset)
if raceenabled && n > 0 {
raceReadRange(unsafe.Pointer(&p[0]), n)
}
return
}
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool