// NsEnter locks the current goroutine the OS thread and switches to a
// new network namespace. The returned function must be called in order
// to restore the previous state and unlock the thread.
func NsEnter(ns netns.NsHandle) (func() error, error) {
runtime.LockOSThread()
origns, err := netns.Get()
if err != nil {
runtime.UnlockOSThread()
return nil, err
}
err = netns.Set(ns)
if err != nil {
origns.Close()
runtime.UnlockOSThread()
return nil, err
}
return func() error {
defer runtime.UnlockOSThread()
defer origns.Close()
if err := netns.Set(origns); err != nil {
return err
}
return nil
}, nil
}
//export goMouseCallback
func goMouseCallback(name *C.char, event, x, y, flags C.int) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
winName := C.GoString(name)
win, ok := allWindows[winName]
if !ok {
return
}
if win.mouseHandle == nil {
return
}
if fa, ok := win.mouseHandle.(func(event, x, y, flags int)); ok {
fa(int(event), int(x), int(y), int(flags))
return
}
if fb, ok := win.mouseHandle.(func(event, x, y, flags int, param ...interface{})); ok {
if win.param != nil {
fb(int(event), int(x), int(y), int(flags), win.param...)
} else {
fb(int(event), int(x), int(y), int(flags))
}
return
}
}
func verifySandbox(t *testing.T, s Sandbox, ifaceSuffixes []string) {
_, ok := s.(*networkNamespace)
if !ok {
t.Fatalf("The sandox interface returned is not of type networkNamespace")
}
origns, err := netns.Get()
if err != nil {
t.Fatalf("Could not get the current netns: %v", err)
}
defer origns.Close()
f, err := os.OpenFile(s.Key(), os.O_RDONLY, 0)
if err != nil {
t.Fatalf("Failed top open network namespace path %q: %v", s.Key(), err)
}
defer f.Close()
runtime.LockOSThread()
defer runtime.UnlockOSThread()
nsFD := f.Fd()
if err = netns.Set(netns.NsHandle(nsFD)); err != nil {
t.Fatalf("Setting to the namespace pointed to by the sandbox %s failed: %v", s.Key(), err)
}
defer netns.Set(origns)
for _, suffix := range ifaceSuffixes {
_, err = netlink.LinkByName(sboxIfaceName + suffix)
if err != nil {
t.Fatalf("Could not find the interface %s inside the sandbox: %v",
sboxIfaceName+suffix, err)
}
}
}
func (v *Reference) SetSymbolicTarget(target string, sig *Signature, msg string) (*Reference, error) {
var ptr *C.git_reference
ctarget := C.CString(target)
defer C.free(unsafe.Pointer(ctarget))
runtime.LockOSThread()
defer runtime.UnlockOSThread()
csig := sig.toC()
defer C.free(unsafe.Pointer(csig))
var cmsg *C.char
if msg == "" {
cmsg = nil
} else {
cmsg = C.CString(msg)
defer C.free(unsafe.Pointer(cmsg))
}
ret := C.git_reference_symbolic_set_target(&ptr, v.ptr, ctarget, csig, cmsg)
if ret < 0 {
return nil, MakeGitError(ret)
}
return newReferenceFromC(ptr), nil
}
func Clone(url string, path string, options *CloneOptions) (*Repository, error) {
repo := new(Repository)
curl := C.CString(url)
defer C.free(unsafe.Pointer(curl))
cpath := C.CString(path)
defer C.free(unsafe.Pointer(cpath))
var copts C.git_clone_options
populateCloneOptions(&copts, options)
defer freeCheckoutOpts(&copts.checkout_opts)
if len(options.CheckoutBranch) != 0 {
copts.checkout_branch = C.CString(options.CheckoutBranch)
defer C.free(unsafe.Pointer(copts.checkout_branch))
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_clone(&repo.ptr, curl, cpath, &copts)
if ret < 0 {
return nil, MakeGitError(ret)
}
runtime.SetFinalizer(repo, (*Repository).Free)
return repo, nil
}
func (b *Branch) Move(newBranchName string, force bool, signature *Signature, msg string) (*Branch, error) {
var ptr *C.git_reference
cNewBranchName := C.CString(newBranchName)
cForce := cbool(force)
cSignature, err := signature.toC()
if err != nil {
return nil, err
}
defer C.git_signature_free(cSignature)
var cmsg *C.char
if msg == "" {
cmsg = nil
} else {
cmsg = C.CString(msg)
defer C.free(unsafe.Pointer(cmsg))
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_branch_move(&ptr, b.Reference.ptr, cNewBranchName, cForce, cSignature, cmsg)
if ret < 0 {
return nil, MakeGitError(ret)
}
return newReferenceFromC(ptr, b.repo).Branch(), nil
}
// MergeBases retrieves the list of merge bases between two commits.
//
// If none are found, an empty slice is returned and the error is set
// approprately
func (r *Repository) MergeBases(one, two *Oid) ([]*Oid, error) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var coids C.git_oidarray
ret := C.git_merge_bases(&coids, r.ptr, one.toC(), two.toC())
if ret < 0 {
return make([]*Oid, 0), MakeGitError(ret)
}
oids := make([]*Oid, coids.count)
hdr := reflect.SliceHeader{
Data: uintptr(unsafe.Pointer(coids.ids)),
Len: int(coids.count),
Cap: int(coids.count),
}
goSlice := *(*[]C.git_oid)(unsafe.Pointer(&hdr))
for i, cid := range goSlice {
oids[i] = newOidFromC(&cid)
}
return oids, nil
}
func nsInvoke(path string, inNsfunc func(callerFD int) error) error {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
origns, err := netns.Get()
if err != nil {
return err
}
defer origns.Close()
f, err := os.OpenFile(path, os.O_RDONLY, 0)
if err != nil {
return fmt.Errorf("failed get network namespace %q: %v", path, err)
}
defer f.Close()
nsFD := f.Fd()
if err = netns.Set(netns.NsHandle(nsFD)); err != nil {
return err
}
defer netns.Set(origns)
// Invoked after the namespace switch.
return inNsfunc(int(origns))
}
// destroy destroys an OpenGL context and unlocks the current goroutine from
// its os thread.
func (c *contextGL) destroy() {
C.CGLUnlockContext(c.ctx)
C.CGLSetCurrentContext(nil)
C.CGLDestroyContext(c.ctx)
c.ctx = nil
runtime.UnlockOSThread()
}
func (v *Index) AddConflict(ancestor *IndexEntry, our *IndexEntry, their *IndexEntry) error {
var cancestor *C.git_index_entry
var cour *C.git_index_entry
var ctheir *C.git_index_entry
if ancestor != nil {
cancestor = &C.git_index_entry{}
populateCIndexEntry(ancestor, cancestor)
defer freeCIndexEntry(cancestor)
}
if our != nil {
cour = &C.git_index_entry{}
populateCIndexEntry(our, cour)
defer freeCIndexEntry(cour)
}
if their != nil {
ctheir = &C.git_index_entry{}
populateCIndexEntry(their, ctheir)
defer freeCIndexEntry(ctheir)
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ecode := C.git_index_conflict_add(v.ptr, cancestor, cour, ctheir)
if ecode < 0 {
return MakeGitError(ecode)
}
return nil
}
func (v *Index) RemoveAll(pathspecs []string, callback IndexMatchedPathCallback) error {
cpathspecs := C.git_strarray{}
cpathspecs.count = C.size_t(len(pathspecs))
cpathspecs.strings = makeCStringsFromStrings(pathspecs)
defer freeStrarray(&cpathspecs)
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var handle unsafe.Pointer
if callback != nil {
handle = pointerHandles.Track(callback)
defer pointerHandles.Untrack(handle)
}
ret := C._go_git_index_remove_all(
v.ptr,
&cpathspecs,
handle,
)
if ret < 0 {
return MakeGitError(ret)
}
return nil
}
func main() {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
defer glfw.Terminate()
gorgasm.Verbose = true
if !glfw.Init() {
panic("Can't init glfw!")
}
// Enable OpenGL ES 2.0.
glfw.WindowHint(glfw.ClientApi, glfw.OpenglEsApi)
glfw.WindowHint(glfw.ContextVersionMajor, 2)
window, err := glfw.CreateWindow(testlib.Width, testlib.Height, "Gorgasm Test", nil, nil)
if err != nil {
panic(err)
}
gorgasm.Init(window)
go prettytest.Run(new(testing.T), testlib.NewTestSuite())
for !window.ShouldClose() {
glfw.WaitEvents()
}
}
func MergeFile(ancestor MergeFileInput, ours MergeFileInput, theirs MergeFileInput, options *MergeFileOptions) (*MergeFileResult, error) {
var cancestor C.git_merge_file_input
var cours C.git_merge_file_input
var ctheirs C.git_merge_file_input
populateCMergeFileInput(&cancestor, ancestor)
defer freeCMergeFileInput(&cancestor)
populateCMergeFileInput(&cours, ours)
defer freeCMergeFileInput(&cours)
populateCMergeFileInput(&ctheirs, theirs)
defer freeCMergeFileInput(&ctheirs)
var copts *C.git_merge_file_options
if options != nil {
copts = &C.git_merge_file_options{}
ecode := C.git_merge_file_init_options(copts, C.GIT_MERGE_FILE_OPTIONS_VERSION)
if ecode < 0 {
return nil, MakeGitError(ecode)
}
populateCMergeFileOptions(copts, *options)
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var result C.git_merge_file_result
ecode := C.git_merge_file(&result, &cancestor, &cours, &ctheirs, copts)
if ecode < 0 {
return nil, MakeGitError(ecode)
}
return newMergeFileResultFromC(&result), nil
}
func (v *Index) AddAll(pathspecs []string, flags IndexAddOpts, callback IndexMatchedPathCallback) error {
cpathspecs := C.git_strarray{}
cpathspecs.count = C.size_t(len(pathspecs))
cpathspecs.strings = makeCStringsFromStrings(pathspecs)
defer freeStrarray(&cpathspecs)
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var cb *IndexMatchedPathCallback
if callback != nil {
cb = &callback
}
ret := C._go_git_index_add_all(
v.ptr,
&cpathspecs,
C.uint(flags),
unsafe.Pointer(cb),
)
if ret < 0 {
return MakeGitError(ret)
}
return nil
}
func Clone(url string, path string, options *CloneOptions) (*Repository, error) {
curl := C.CString(url)
defer C.free(unsafe.Pointer(curl))
cpath := C.CString(path)
defer C.free(unsafe.Pointer(cpath))
copts := (*C.git_clone_options)(C.calloc(1, C.size_t(unsafe.Sizeof(C.git_clone_options{}))))
populateCloneOptions(copts, options)
defer freeCloneOptions(copts)
if len(options.CheckoutBranch) != 0 {
copts.checkout_branch = C.CString(options.CheckoutBranch)
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var ptr *C.git_repository
ret := C.git_clone(&ptr, curl, cpath, copts)
freeCheckoutOpts(&copts.checkout_opts)
if ret < 0 {
return nil, MakeGitError(ret)
}
return newRepositoryFromC(ptr), nil
}
// Explicit thread-safe start of libvips.
// Only call this function if you've previously shutdown libvips
func Initialize() {
if C.VIPS_MAJOR_VERSION <= 7 && C.VIPS_MINOR_VERSION < 40 {
panic("unsupported libvips version!")
}
m.Lock()
runtime.LockOSThread()
defer m.Unlock()
defer runtime.UnlockOSThread()
err := C.vips_init(C.CString("bimg"))
if err != 0 {
panic("unable to start vips!")
}
// Set libvips cache params
C.vips_cache_set_max_mem(maxCacheMem)
C.vips_cache_set_max(maxCacheSize)
// Define a custom thread concurrency limit in libvips (this may generate thread-unsafe issues)
// See: https://github.com/jcupitt/libvips/issues/261#issuecomment-92850414
if os.Getenv("VIPS_CONCURRENCY") == "" {
C.vips_concurrency_set(1)
}
// Enable libvips cache tracing
if os.Getenv("VIPS_TRACE") != "" {
C.vips_enable_cache_set_trace()
}
initialized = true
}
func (v *Reference) SetTarget(target *Oid, sig *Signature, msg string) (*Reference, error) {
var ptr *C.git_reference
runtime.LockOSThread()
defer runtime.UnlockOSThread()
csig, err := sig.toC()
if err != nil {
return nil, err
}
defer C.git_signature_free(csig)
var cmsg *C.char
if msg == "" {
cmsg = nil
} else {
cmsg = C.CString(msg)
defer C.free(unsafe.Pointer(cmsg))
}
ret := C.git_reference_set_target(&ptr, v.ptr, target.toC(), csig, cmsg)
if ret < 0 {
return nil, MakeGitError(ret)
}
return newReferenceFromC(ptr, v.repo), nil
}
func timeoutIO() {
// CancelIO only cancels all pending input and output (I/O) operations that are
// issued by the calling thread for the specified file, does not cancel I/O
// operations that other threads issue for a file handle. So we need do all timeout
// I/O in single OS thread.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
for {
o := <-ioChan
var e int
switch o.f {
case read:
e = syscall.WSARecv(uint32(o.fd.sysfd), o.pckt.w, 1, o.done, o.flags, &o.pckt.o, nil)
case readfrom:
e = syscall.WSARecvFrom(uint32(o.fd.sysfd), o.pckt.w, 1, o.done, o.flags, o.rsa, o.size, &o.pckt.o, nil)
case write:
e = syscall.WSASend(uint32(o.fd.sysfd), o.pckt.w, 1, o.done, uint32(0), &o.pckt.o, nil)
case writeto:
e = syscall.WSASendto(uint32(o.fd.sysfd), o.pckt.w, 1, o.done, 0, *o.sa, &o.pckt.o, nil)
case cancel:
_, e = syscall.CancelIo(uint32(o.fd.sysfd))
}
o.c <- e
}
}
func setupNetNs(nsPath string) (*os.Process, error) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
origns, err := netns.Get()
if err != nil {
return nil, err
}
defer origns.Close()
f, err := os.OpenFile(nsPath, os.O_RDONLY, 0)
if err != nil {
return nil, fmt.Errorf("failed to get network namespace %q: %v", nsPath, err)
}
defer f.Close()
nsFD := f.Fd()
if err := netns.Set(netns.NsHandle(nsFD)); err != nil {
return nil, fmt.Errorf("failed to set network namespace %q: %v", nsPath, err)
}
defer netns.Set(origns)
cmd := exec.Command("/bin/sh", "-c", "while true; do sleep 1; done")
if err := cmd.Start(); err != nil {
return nil, fmt.Errorf("failed to start netns process: %v", err)
}
return cmd.Process, nil
}
// Do takes a function which it will call in the network namespace specified by nsName.
// The goroutine that calls this will lock itself to its current OS thread, hop
// namespaces, call the given function, hop back to its original namespace, and then
// unlock itself from its current OS thread.
// Do returns an error if an error occurs at any point besides in the invocation of
// the given function.
// The caller should check both the error of Do and any errors from the given function call.
//
// The callback function is expected to do something simple such as just
// creating a socket / opening a connection, as it's not desirable to start
// complex logic in a goroutine that is pinned to the current OS thread.
// Also any goroutine started from the callback function may or may not
// execute in the desired namespace.
func Do(nsName string, cb Callback) error {
// If destNS is empty, the function is called in the caller's namespace
if nsName == "" {
cb()
return nil
}
// Get the file descriptor to the current namespace
currNsFd, err := getNs(selfNsFile)
if os.IsNotExist(err) {
return fmt.Errorf("File descriptor to current namespace does not exist: %s", err)
} else if err != nil {
return fmt.Errorf("Failed to open %s: %s", selfNsFile, err)
}
defer currNsFd.close()
runtime.LockOSThread()
defer runtime.UnlockOSThread()
// Jump to the new network namespace
if err := setNsByName(nsName); err != nil {
return fmt.Errorf("Failed to set the namespace to %s: %s", nsName, err)
}
// Call the given function
cb()
// Come back to the original namespace
if err = setNs(currNsFd); err != nil {
return fmt.Errorf("Failed to return to the original namespace: %s", err)
}
return nil
}
func TestGetNewSetDelete(t *testing.T) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
origns, err := Get()
if err != nil {
t.Fatal(err)
}
newns, err := New()
if err != nil {
t.Fatal(err)
}
if origns.Equal(newns) {
t.Fatal("New ns failed")
}
if err := Set(origns); err != nil {
t.Fatal(err)
}
newns.Close()
if newns.IsOpen() {
t.Fatal("newns still open after close", newns)
}
ns, err := Get()
if err != nil {
t.Fatal(err)
}
if !ns.Equal(origns) {
t.Fatal("Reset ns failed", origns, newns, ns)
}
}
// lookupProtocol looks up IP protocol name and returns correspondent protocol number.
func lookupProtocol(ctx context.Context, name string) (int, error) {
// GetProtoByName return value is stored in thread local storage.
// Start new os thread before the call to prevent races.
type result struct {
proto int
err error
}
ch := make(chan result) // unbuffered
go func() {
acquireThread()
defer releaseThread()
runtime.LockOSThread()
defer runtime.UnlockOSThread()
proto, err := getprotobyname(name)
select {
case ch <- result{proto: proto, err: err}:
case <-ctx.Done():
}
}()
select {
case r := <-ch:
if r.err != nil {
if proto, err := lookupProtocolMap(name); err == nil {
return proto, nil
}
r.err = &DNSError{Err: r.err.Error(), Name: name}
}
return r.proto, r.err
case <-ctx.Done():
return 0, mapErr(ctx.Err())
}
}
func (repo *Repository) CreateBranch(branchName string, target *Commit, force bool, signature *Signature, msg string) (*Branch, error) {
ref := new(Reference)
cBranchName := C.CString(branchName)
cForce := cbool(force)
cSignature, err := signature.toC()
if err != nil {
return nil, err
}
defer C.git_signature_free(cSignature)
var cmsg *C.char
if msg == "" {
cmsg = nil
} else {
cmsg = C.CString(msg)
defer C.free(unsafe.Pointer(cmsg))
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_branch_create(&ref.ptr, repo.ptr, cBranchName, target.cast_ptr, cForce, cSignature, cmsg)
if ret < 0 {
return nil, MakeGitError(ret)
}
return ref.Branch(), nil
}
func main() {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
defer glfw.Terminate()
mandala.Verbose = true
if !glfw.Init() {
panic("Can't init glfw!")
}
// Enable OpenGL ES 2.0.
glfw.WindowHint(glfw.ClientApi, glfw.OpenglEsApi)
glfw.WindowHint(glfw.ContextVersionMajor, 2)
window, err := glfw.CreateWindow(Width, Height, "gltext black-box testing", nil, nil)
if err != nil {
panic(err)
}
glfw.SwapInterval(0)
mandala.Init(window)
go prettytest.Run(new(testing.T), testlib.NewTestSuite(outputPath))
for !window.ShouldClose() {
glfw.WaitEvents()
}
}
// goCallbackExit gets invoked from within xhyve.c whenever a trap
// suspending the VM is triggered. This is so we can clean up resources
// in Go land, restore terminal settings and allow the goroutine to be scheduled
// on multiple OS threads again by Go's scheduler.
//export goCallbackExit
func goCallbackExit(status C.int) {
exitStatus := map[int]string{
0: "Reset",
1: "PowerOFF",
2: "Halt",
3: "TripleFault",
100: "Internal error",
}
// Restores stty settings to the values that existed before running xhyve.
setTermios(termios)
fmt.Printf("VM has been suspended by %s event\n", exitStatus[int(status)])
fmt.Printf("Releasing allocated memory from Go land... ")
for _, arg := range argv {
C.free(unsafe.Pointer(arg))
}
fmt.Println("done")
// Turns exit flag On for mevent busy loop so that the next time kevent
// receives an event, mevent handles it and exits the loop.
fmt.Print("Signaling xhyve mevent dispatch loop to exit... ")
C.exit_mevent_dispatch_loop = true
// Forces kevent() to exit by using the self-pipe trick.
C.mevent_exit()
fmt.Println("done")
// Allows Go's scheduler to move the goroutine to a different OS thread.
runtime.UnlockOSThread()
}
func (b *Branch) Move(newBranchName string, force bool, signature *Signature, msg string) (*Branch, error) {
newBranch := new(Branch)
cNewBranchName := C.CString(newBranchName)
cForce := cbool(force)
cSignature := signature.toC()
defer C.git_signature_free(cSignature)
var cmsg *C.char
if msg == "" {
cmsg = nil
} else {
cmsg = C.CString(msg)
defer C.free(unsafe.Pointer(cmsg))
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_branch_move(&newBranch.ptr, b.ptr, cNewBranchName, cForce, cSignature, cmsg)
if ret < 0 {
return nil, MakeGitError(ret)
}
return newBranch, nil
}
func (v *Reference) Rename(name string, force bool, sig *Signature, msg string) (*Reference, error) {
var ptr *C.git_reference
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
csig := sig.toC()
defer C.free(unsafe.Pointer(csig))
var cmsg *C.char
if msg == "" {
cmsg = nil
} else {
cmsg = C.CString(msg)
defer C.free(unsafe.Pointer(cmsg))
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_reference_rename(&ptr, v.ptr, cname, cbool(force), csig, cmsg)
if ret < 0 {
return nil, MakeGitError(ret)
}
return newReferenceFromC(ptr), nil
}
func (c *Config) NewMultivarIterator(name, regexp string) (*ConfigIterator, error) {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
var cregexp *C.char
if regexp == "" {
cregexp = nil
} else {
cregexp = C.CString(regexp)
defer C.free(unsafe.Pointer(cregexp))
}
iter := new(ConfigIterator)
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_config_multivar_iterator_new(&iter.ptr, c.ptr, cname, cregexp)
if ret < 0 {
return nil, MakeGitError(ret)
}
runtime.SetFinalizer(iter, (*ConfigIterator).Free)
return iter, nil
}
func checkSandbox(t *testing.T, info libnetwork.EndpointInfo) {
origns, err := netns.Get()
if err != nil {
t.Fatalf("Could not get the current netns: %v", err)
}
defer origns.Close()
key := info.Sandbox().Key()
f, err := os.OpenFile(key, os.O_RDONLY, 0)
if err != nil {
t.Fatalf("Failed to open network namespace path %q: %v", key, err)
}
defer f.Close()
runtime.LockOSThread()
defer runtime.UnlockOSThread()
nsFD := f.Fd()
if err = netns.Set(netns.NsHandle(nsFD)); err != nil {
t.Fatalf("Setting to the namespace pointed to by the sandbox %s failed: %v", key, err)
}
defer netns.Set(origns)
_, err = netlink.LinkByName("eth0")
if err != nil {
t.Fatalf("Could not find the interface eth0 inside the sandbox: %v", err)
}
_, err = netlink.LinkByName("eth1")
if err != nil {
t.Fatalf("Could not find the interface eth1 inside the sandbox: %v", err)
}
}
func (udp *udpProxySocket) getBackendConn(activeClients *clientCache, cliAddr net.Addr, proxier *Proxier, service string, timeout time.Duration) (net.Conn, error) {
activeClients.mu.Lock()
defer activeClients.mu.Unlock()
svrConn, found := activeClients.clients[cliAddr.String()]
if !found {
// TODO: This could spin up a new goroutine to make the outbound connection,
// and keep accepting inbound traffic.
glog.Infof("New UDP connection from %s", cliAddr)
ns, endpoint, err := proxier.loadBalancer.NextEndpoint(service, cliAddr)
if err != nil {
glog.Errorf("Couldn't find an endpoint for %s %v", service, err)
return nil, err
}
glog.Infof("Mapped service %s to endpoint %s", service, endpoint)
if ns.IsOpen() {
glog.Infof("Using namespace %v for endpoint %s", ns, endpoint)
runtime.LockOSThread()
netns.Set(ns)
defer runtime.UnlockOSThread()
}
svrConn, err = retryDial("udp", endpoint, endpointDialTimeout)
if err != nil {
// TODO: Try another endpoint?
glog.Errorf("Dial failed: %v", err)
return nil, err
}
activeClients.clients[cliAddr.String()] = svrConn
go func(cliAddr net.Addr, svrConn net.Conn, activeClients *clientCache, timeout time.Duration) {
defer util.HandleCrash()
udp.proxyClient(cliAddr, svrConn, activeClients, timeout)
}(cliAddr, svrConn, activeClients, timeout)
}
return svrConn, nil
}