mirror of
https://gitea.com/Lydanne/buildx.git
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vendor: update buildkit to 539be170
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
256
vendor/golang.org/x/sys/unix/syscall_solaris.go
generated
vendored
256
vendor/golang.org/x/sys/unix/syscall_solaris.go
generated
vendored
@ -13,7 +13,10 @@
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package unix
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import (
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"fmt"
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"os"
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"runtime"
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"sync"
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"syscall"
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"unsafe"
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)
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@ -89,9 +92,7 @@ func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
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p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
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p[0] = byte(sa.Port >> 8)
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p[1] = byte(sa.Port)
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for i := 0; i < len(sa.Addr); i++ {
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sa.raw.Addr[i] = sa.Addr[i]
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}
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sa.raw.Addr = sa.Addr
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return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
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}
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@ -104,9 +105,7 @@ func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
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p[0] = byte(sa.Port >> 8)
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p[1] = byte(sa.Port)
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sa.raw.Scope_id = sa.ZoneId
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for i := 0; i < len(sa.Addr); i++ {
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sa.raw.Addr[i] = sa.Addr[i]
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}
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sa.raw.Addr = sa.Addr
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return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
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}
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@ -414,9 +413,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
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sa := new(SockaddrInet4)
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p := (*[2]byte)(unsafe.Pointer(&pp.Port))
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sa.Port = int(p[0])<<8 + int(p[1])
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for i := 0; i < len(sa.Addr); i++ {
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sa.Addr[i] = pp.Addr[i]
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}
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sa.Addr = pp.Addr
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return sa, nil
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case AF_INET6:
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@ -425,9 +422,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
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p := (*[2]byte)(unsafe.Pointer(&pp.Port))
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sa.Port = int(p[0])<<8 + int(p[1])
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sa.ZoneId = pp.Scope_id
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for i := 0; i < len(sa.Addr); i++ {
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sa.Addr[i] = pp.Addr[i]
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}
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sa.Addr = pp.Addr
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return sa, nil
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}
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return nil, EAFNOSUPPORT
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@ -744,3 +739,240 @@ func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, e
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func Munmap(b []byte) (err error) {
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return mapper.Munmap(b)
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}
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// Event Ports
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type fileObjCookie struct {
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fobj *fileObj
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cookie interface{}
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}
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// EventPort provides a safe abstraction on top of Solaris/illumos Event Ports.
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type EventPort struct {
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port int
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mu sync.Mutex
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fds map[uintptr]interface{}
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paths map[string]*fileObjCookie
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}
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// PortEvent is an abstraction of the port_event C struct.
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// Compare Source against PORT_SOURCE_FILE or PORT_SOURCE_FD
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// to see if Path or Fd was the event source. The other will be
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// uninitialized.
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type PortEvent struct {
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Cookie interface{}
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Events int32
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Fd uintptr
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Path string
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Source uint16
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fobj *fileObj
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}
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// NewEventPort creates a new EventPort including the
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// underlying call to port_create(3c).
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func NewEventPort() (*EventPort, error) {
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port, err := port_create()
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if err != nil {
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return nil, err
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}
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e := &EventPort{
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port: port,
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fds: make(map[uintptr]interface{}),
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paths: make(map[string]*fileObjCookie),
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}
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return e, nil
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}
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//sys port_create() (n int, err error)
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//sys port_associate(port int, source int, object uintptr, events int, user *byte) (n int, err error)
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//sys port_dissociate(port int, source int, object uintptr) (n int, err error)
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//sys port_get(port int, pe *portEvent, timeout *Timespec) (n int, err error)
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//sys port_getn(port int, pe *portEvent, max uint32, nget *uint32, timeout *Timespec) (n int, err error)
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// Close closes the event port.
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func (e *EventPort) Close() error {
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e.mu.Lock()
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defer e.mu.Unlock()
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e.fds = nil
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e.paths = nil
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return Close(e.port)
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}
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// PathIsWatched checks to see if path is associated with this EventPort.
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func (e *EventPort) PathIsWatched(path string) bool {
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e.mu.Lock()
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defer e.mu.Unlock()
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_, found := e.paths[path]
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return found
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}
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// FdIsWatched checks to see if fd is associated with this EventPort.
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func (e *EventPort) FdIsWatched(fd uintptr) bool {
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e.mu.Lock()
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defer e.mu.Unlock()
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_, found := e.fds[fd]
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return found
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}
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// AssociatePath wraps port_associate(3c) for a filesystem path including
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// creating the necessary file_obj from the provided stat information.
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func (e *EventPort) AssociatePath(path string, stat os.FileInfo, events int, cookie interface{}) error {
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e.mu.Lock()
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defer e.mu.Unlock()
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if _, found := e.paths[path]; found {
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return fmt.Errorf("%v is already associated with this Event Port", path)
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}
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fobj, err := createFileObj(path, stat)
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if err != nil {
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return err
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}
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fCookie := &fileObjCookie{fobj, cookie}
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_, err = port_associate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(fobj)), events, (*byte)(unsafe.Pointer(&fCookie.cookie)))
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if err != nil {
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return err
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}
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e.paths[path] = fCookie
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return nil
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}
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// DissociatePath wraps port_dissociate(3c) for a filesystem path.
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func (e *EventPort) DissociatePath(path string) error {
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e.mu.Lock()
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defer e.mu.Unlock()
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f, ok := e.paths[path]
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if !ok {
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return fmt.Errorf("%v is not associated with this Event Port", path)
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}
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_, err := port_dissociate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(f.fobj)))
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if err != nil {
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return err
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}
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delete(e.paths, path)
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return nil
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}
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// AssociateFd wraps calls to port_associate(3c) on file descriptors.
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func (e *EventPort) AssociateFd(fd uintptr, events int, cookie interface{}) error {
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e.mu.Lock()
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defer e.mu.Unlock()
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if _, found := e.fds[fd]; found {
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return fmt.Errorf("%v is already associated with this Event Port", fd)
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}
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pcookie := &cookie
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_, err := port_associate(e.port, PORT_SOURCE_FD, fd, events, (*byte)(unsafe.Pointer(pcookie)))
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if err != nil {
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return err
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}
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e.fds[fd] = pcookie
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return nil
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}
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// DissociateFd wraps calls to port_dissociate(3c) on file descriptors.
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func (e *EventPort) DissociateFd(fd uintptr) error {
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e.mu.Lock()
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defer e.mu.Unlock()
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_, ok := e.fds[fd]
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if !ok {
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return fmt.Errorf("%v is not associated with this Event Port", fd)
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}
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_, err := port_dissociate(e.port, PORT_SOURCE_FD, fd)
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if err != nil {
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return err
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}
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delete(e.fds, fd)
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return nil
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}
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func createFileObj(name string, stat os.FileInfo) (*fileObj, error) {
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fobj := new(fileObj)
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bs, err := ByteSliceFromString(name)
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if err != nil {
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return nil, err
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}
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fobj.Name = (*int8)(unsafe.Pointer(&bs[0]))
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s := stat.Sys().(*syscall.Stat_t)
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fobj.Atim.Sec = s.Atim.Sec
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fobj.Atim.Nsec = s.Atim.Nsec
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fobj.Mtim.Sec = s.Mtim.Sec
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fobj.Mtim.Nsec = s.Mtim.Nsec
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fobj.Ctim.Sec = s.Ctim.Sec
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fobj.Ctim.Nsec = s.Ctim.Nsec
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return fobj, nil
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}
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// GetOne wraps port_get(3c) and returns a single PortEvent.
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func (e *EventPort) GetOne(t *Timespec) (*PortEvent, error) {
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pe := new(portEvent)
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_, err := port_get(e.port, pe, t)
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if err != nil {
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return nil, err
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}
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p := new(PortEvent)
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p.Events = pe.Events
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p.Source = pe.Source
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e.mu.Lock()
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defer e.mu.Unlock()
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switch pe.Source {
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case PORT_SOURCE_FD:
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p.Fd = uintptr(pe.Object)
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cookie := (*interface{})(unsafe.Pointer(pe.User))
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p.Cookie = *cookie
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delete(e.fds, p.Fd)
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case PORT_SOURCE_FILE:
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p.fobj = (*fileObj)(unsafe.Pointer(uintptr(pe.Object)))
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p.Path = BytePtrToString((*byte)(unsafe.Pointer(p.fobj.Name)))
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cookie := (*interface{})(unsafe.Pointer(pe.User))
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p.Cookie = *cookie
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delete(e.paths, p.Path)
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}
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return p, nil
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}
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// Pending wraps port_getn(3c) and returns how many events are pending.
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func (e *EventPort) Pending() (int, error) {
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var n uint32 = 0
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_, err := port_getn(e.port, nil, 0, &n, nil)
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return int(n), err
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}
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// Get wraps port_getn(3c) and fills a slice of PortEvent.
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// It will block until either min events have been received
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// or the timeout has been exceeded. It will return how many
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// events were actually received along with any error information.
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func (e *EventPort) Get(s []PortEvent, min int, timeout *Timespec) (int, error) {
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if min == 0 {
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return 0, fmt.Errorf("need to request at least one event or use Pending() instead")
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}
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if len(s) < min {
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return 0, fmt.Errorf("len(s) (%d) is less than min events requested (%d)", len(s), min)
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}
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got := uint32(min)
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max := uint32(len(s))
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var err error
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ps := make([]portEvent, max, max)
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_, err = port_getn(e.port, &ps[0], max, &got, timeout)
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// got will be trustworthy with ETIME, but not any other error.
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if err != nil && err != ETIME {
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return 0, err
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}
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e.mu.Lock()
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defer e.mu.Unlock()
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for i := 0; i < int(got); i++ {
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s[i].Events = ps[i].Events
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s[i].Source = ps[i].Source
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switch ps[i].Source {
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case PORT_SOURCE_FD:
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s[i].Fd = uintptr(ps[i].Object)
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cookie := (*interface{})(unsafe.Pointer(ps[i].User))
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s[i].Cookie = *cookie
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delete(e.fds, s[i].Fd)
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case PORT_SOURCE_FILE:
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s[i].fobj = (*fileObj)(unsafe.Pointer(uintptr(ps[i].Object)))
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s[i].Path = BytePtrToString((*byte)(unsafe.Pointer(s[i].fobj.Name)))
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cookie := (*interface{})(unsafe.Pointer(ps[i].User))
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s[i].Cookie = *cookie
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delete(e.paths, s[i].Path)
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}
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}
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return int(got), err
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}
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