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syscall: use pipe instead of pipe2 on NetBSD

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pipe2 is equivalent to pipe with flags set to 0.
However, pipe2 was only added recently. Using pipe
instead improves compatibility with NetBSD 5.

R=jsing
CC=golang-dev
https://golang.org/cl/6268045
This commit is contained in:
Benny Siegert 2012-06-05 01:29:34 +10:00 committed by Joel Sing
parent afeaf554aa
commit 677cdb800d
3 changed files with 10 additions and 9 deletions
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7
src/pkg/syscall/syscall_netbsd.go
View File

@ -118,15 +118,12 @@ func ParseDirent(buf []byte, max int, names []string) (consumed int, count int,
return origlen - len(buf), count, names
}
//sysnb pipe2(p *[2]_C_int, flags _C_int) (err error)
//sysnb pipe() (fd1 int, fd2 int, err error)
func Pipe(p []int) (err error) {
if len(p) != 2 {
return EINVAL
}
var pp [2]_C_int
err = pipe2(&pp, 0)
p[0] = int(pp[0])
p[1] = int(pp[1])
p[0], p[1], err = pipe()
return
}

6
src/pkg/syscall/zsyscall_netbsd_386.go
View File

@ -253,8 +253,10 @@ func fcntl(fd int, cmd int, arg int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe2(p *[2]_C_int, flags _C_int) (err error) {
_, _, e1 := RawSyscall(SYS_PIPE2, uintptr(unsafe.Pointer(p)), uintptr(flags), 0)
func pipe() (fd1 int, fd2 int, err error) {
r0, r1, e1 := RawSyscall(SYS_PIPE, 0, 0, 0)
fd1 = int(r0)
fd2 = int(r1)
if e1 != 0 {
err = e1
}

6
src/pkg/syscall/zsyscall_netbsd_amd64.go
View File

@ -253,8 +253,10 @@ func fcntl(fd int, cmd int, arg int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe2(p *[2]_C_int, flags _C_int) (err error) {
_, _, e1 := RawSyscall(SYS_PIPE2, uintptr(unsafe.Pointer(p)), uintptr(flags), 0)
func pipe() (fd1 int, fd2 int, err error) {
r0, r1, e1 := RawSyscall(SYS_PIPE, 0, 0, 0)
fd1 = int(r0)
fd2 = int(r1)
if e1 != 0 {
err = e1
}