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unix: add Poll for linux

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Change-Id: I273bd852f85d204694872a1615be51dc027b97ee
Reviewed-on: https://go-review.googlesource.com/23661
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
kortschak
2016-06-02 17:41:10 +09:30
committed by Ian Lance Taylor
parent b44883b474
commit 7f918dd405
21 changed files with 304 additions and 1 deletions
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10
unix/syscall_linux.go
View File

@@ -60,6 +60,15 @@ func Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
return openat(dirfd, path, flags|O_LARGEFILE, mode)
}
//sys poll(fds *PollFd, nfd int, timeout int) (n int, err error)
func Poll(fds []PollFd, timeout int) (n int, err error) {
if len(fds) == 0 {
return poll(nil, 0, timeout)
}
return poll(&fds[0], len(fds), timeout)
}
//sys readlinkat(dirfd int, path string, buf []byte) (n int, err error)
func Readlink(path string, buf []byte) (n int, err error) {
@@ -1043,7 +1052,6 @@ func Munmap(b []byte) (err error) {
// Newfstatat
// Nfsservctl
// Personality
// Poll
// Ppoll
// Pselect6
// Ptrace

39
unix/syscall_linux_test.go
View File

@@ -15,6 +15,45 @@ import (
"golang.org/x/sys/unix"
)
func TestPoll(t *testing.T) {
err := unix.Mkfifo("fifo", 0666)
if err != nil {
t.Errorf("Poll: failed to create FIFO: %v", err)
return
}
defer os.Remove("fifo")
f, err := os.OpenFile("fifo", os.O_RDWR, 0666)
if err != nil {
t.Errorf("Poll: failed to open FIFO: %v", err)
return
}
defer f.Close()
const timeout = 100
ok := make(chan bool, 1)
go func() {
select {
case <-time.After(10 * timeout * time.Millisecond):
t.Errorf("Poll: failed to timeout after %d milliseconds", 10*timeout)
case <-ok:
}
}()
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
n, err := unix.Poll(fds, timeout)
ok <- true
if err != nil {
t.Errorf("Poll: unexpected error: %v", err)
return
}
if n != 0 {
t.Errorf("Poll: wrong number of events: got %v, expected %v", n, 0)
return
}
}
func TestTime(t *testing.T) {
var ut unix.Time_t
ut2, err := unix.Time(&ut)

13
unix/types_linux.go
View File

@@ -24,6 +24,7 @@ package unix
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netpacket/packet.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <sys/epoll.h>
@@ -430,6 +431,18 @@ const (
AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
)
type PollFd C.struct_pollfd
const (
POLLIN = C.POLLIN
POLLPRI = C.POLLPRI
POLLOUT = C.POLLOUT
POLLRDHUP = C.POLLRDHUP
POLLERR = C.POLLERR
POLLHUP = C.POLLHUP
POLLNVAL = C.POLLNVAL
)
// Terminal handling
type Termios C.termios_t

11
unix/zsyscall_linux_386.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_amd64.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_arm.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_arm64.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_mips64.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_mips64le.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_ppc64.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_ppc64le.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

11
unix/zsyscall_linux_s390x.go
View File

@@ -53,6 +53,17 @@ func openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func poll(fds *PollFd, nfd int, timeout int) (n int, err error) {
r0, _, e1 := Syscall(SYS_POLL, uintptr(unsafe.Pointer(fds)), uintptr(nfd), uintptr(timeout))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func readlinkat(dirfd int, path string, buf []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)

16
unix/ztypes_linux_386.go
View File

@@ -595,6 +595,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_amd64.go
View File

@@ -613,6 +613,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_arm.go
View File

@@ -575,6 +575,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_arm64.go
View File

@@ -592,6 +592,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_mips64.go
View File

@@ -596,6 +596,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_mips64le.go
View File

@@ -596,6 +596,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_ppc64.go
View File

@@ -602,6 +602,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_ppc64le.go
View File

@@ -602,6 +602,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32

16
unix/ztypes_linux_s390x.go
View File

@@ -617,6 +617,22 @@ const (
AT_SYMLINK_NOFOLLOW = 0x100
)
type PollFd struct {
Fd int32
Events int16
Revents int16
}
const (
POLLIN = 0x1
POLLPRI = 0x2
POLLOUT = 0x4
POLLRDHUP = 0x2000
POLLERR = 0x8
POLLHUP = 0x10
POLLNVAL = 0x20
)
type Termios struct {
Iflag uint32
Oflag uint32