init

wasmbuild/_stubs/bufio_copy_direct_posix.go

@@ -0,0 +1,76 @@
+// Substituted in via `go build -overlay` for the js/wasm build ONLY.
+//
+// Upstream common/bufio/copy_direct_posix.go (build tag `!windows`) implements
+// the syscall read-waiters using golang.org/x/sys/unix (readv/recvmsg). wait.go
+// (cross-platform) references the createSyscall*ReadWaiter constructors, so the
+// symbols must exist for the package to compile. Under wasm there are no raw
+// socket fds, so the constructors report "not created" and the read paths are
+// never taken. This provides the same identifiers with unix stripped out.
+
+package bufio
+
+import (
+	"os"
+	"syscall"
+
+	"github.com/sagernet/sing/common/buf"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+var _ N.ReadWaiter = (*syscallReadWaiter)(nil)
+
+type syscallReadWaiter struct {
+	rawConn syscall.RawConn
+	buffer  *buf.Buffer
+	options N.ReadWaitOptions
+}
+
+func createSyscallReadWaiter(any) (*syscallReadWaiter, bool) { return nil, false }
+
+func (w *syscallReadWaiter) InitializeReadWaiter(options N.ReadWaitOptions) (needCopy bool) {
+	w.options = options
+	return false
+}
+
+func (w *syscallReadWaiter) WaitReadBuffer() (buffer *buf.Buffer, err error) {
+	return nil, os.ErrInvalid
+}
+
+var _ N.VectorisedReadWaiter = (*vectorisedSyscallReadWaiter)(nil)
+
+type vectorisedSyscallReadWaiter struct {
+	rawConn syscall.RawConn
+	buffers []*buf.Buffer
+	options N.ReadWaitOptions
+}
+
+func createVectorisedSyscallReadWaiter(any) (*vectorisedSyscallReadWaiter, bool) { return nil, false }
+
+func (w *vectorisedSyscallReadWaiter) InitializeReadWaiter(options N.ReadWaitOptions) (needCopy bool) {
+	w.options = options
+	return false
+}
+
+func (w *vectorisedSyscallReadWaiter) WaitReadBuffers() (buffers []*buf.Buffer, err error) {
+	return nil, os.ErrInvalid
+}
+
+var _ N.PacketReadWaiter = (*syscallPacketReadWaiter)(nil)
+
+type syscallPacketReadWaiter struct {
+	rawConn syscall.RawConn
+	buffer  *buf.Buffer
+	options N.ReadWaitOptions
+}
+
+func createSyscallPacketReadWaiter(any) (*syscallPacketReadWaiter, bool) { return nil, false }
+
+func (w *syscallPacketReadWaiter) InitializeReadWaiter(options N.ReadWaitOptions) (needCopy bool) {
+	w.options = options
+	return false
+}
+
+func (w *syscallPacketReadWaiter) WaitReadPacket() (buffer *buf.Buffer, destination M.Socksaddr, err error) {
+	return nil, M.Socksaddr{}, os.ErrInvalid
+}