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net: make WriteMsg{IP,UDP,Unix} return the correct number of bytes transferred

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Fixes #7645

LGTM=iant, bradfitz
R=iant, bradfitz
CC=golang-codereviews
https://golang.org/cl/90170046
This commit is contained in:
Mikio Hara 2014-04-26 06:52:37 +09:00
parent 9144d8752a
commit e419ab6452
1 changed files with 1 additions and 2 deletions
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3
src/pkg/net/fd_unix.go
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@ -375,7 +375,7 @@ func (fd *netFD) writeMsg(p []byte, oob []byte, sa syscall.Sockaddr) (n int, oob
return 0, 0, &OpError{"write", fd.net, fd.raddr, err}
}
for {
err = syscall.Sendmsg(fd.sysfd, p, oob, sa, 0)
n, err = syscall.SendmsgN(fd.sysfd, p, oob, sa, 0)
if err == syscall.EAGAIN {
if err = fd.pd.WaitWrite(); err == nil {
continue
@ -384,7 +384,6 @@ func (fd *netFD) writeMsg(p []byte, oob []byte, sa syscall.Sockaddr) (n int, oob
break
}
if err == nil {
n = len(p)
oobn = len(oob)
} else {
err = &OpError{"write", fd.net, fd.raddr, err}