refactor(c/libuv): Use cgo alias replace struct assertion in fs

refactro(c/libuv): Use cgo alias avoid implicit struct member declaration

c/libuv/fs.go

@@ -1,5 +1,9 @@
 package libuv
 
+//#cgo pkg-config: libuv
+//#include <uv.h>
+import "C"
+
 import (
 	_ "unsafe"
 
@@ -68,9 +72,7 @@ type File c.Int
 
 /* Handle types. */
 
-type Fs struct {
+type Fs C.uv_fs_t
-	Unused [440]byte
-}
 
 type FsEvent struct {
 	Unused [0]byte

c/libuv/net.go

@@ -71,17 +71,9 @@ type UdpFlags c.Int
 
 type Tcp C.uv_tcp_t
 
-// TODO(spongehah): Handle
+type Handle C.uv_handle_t
-type Handle struct {
-	Data   c.Pointer
-	Unused [88]byte
-	// TODO(spongehah): Stream
-}
 
-type Stream struct {
+type Stream C.uv_stream_t
-	Data   c.Pointer
-	Unused [256]byte
-}
 
 type Shutdown struct {
 	Unused [0]byte
@@ -101,17 +93,9 @@ type UdpSend struct {
 	Unused [0]byte
 }
 
-// TODO(spongehah): Connect
+type Connect C.uv_connect_t
-type Connect struct {
-	Data   c.Pointer
-	Unused [88]byte
-}
 
-// TODO(spongehah): Write
+type Write C.uv_write_t
-type Write struct {
-	Data   c.Pointer
-	Unused [184]byte
-}
 
 type GetAddrInfo struct {
 	Unused [0]byte
@@ -153,6 +137,12 @@ type ShutdownCb func(req *Shutdown, status c.Int)
 
 /* Handle related function and method */
 
+//go:linkname HandleSize C.uv_handle_size
+func HandleSize(handleType HandleType) uintptr
+
+//go:linkname HandleTypeName C.uv_handle_type_name
+func HandleTypeName(handleType HandleType) *c.Char
+
 // llgo:link (*Handle).Ref C.uv_ref
 func (handle *Handle) Ref() {}
 
@@ -164,17 +154,11 @@ func (handle *Handle) HasRef() c.Int {
 	return 0
 }
 
-//go:linkname HandleSize C.uv_handle_size
-func HandleSize(handleType HandleType) uintptr
-
 // llgo:link (*Handle).GetType C.uv_handle_get_type
 func (handle *Handle) GetType() HandleType {
 	return 0
 }
 
-//go:linkname HandleTypeName C.uv_handle_type_name
-func HandleTypeName(handleType HandleType) *c.Char
-
 // llgo:link (*Handle).GetData C.uv_handle_get_data
 func (handle *Handle) GetData() c.Pointer {
 	return nil
@@ -211,16 +195,6 @@ func (handle *Handle) Fileno(fd *OsFd) c.Int {
 	return 0
 }
 
-//go:linkname Pipe C.uv_pipe
-func Pipe(fds [2]File, readFlags c.Int, writeFlags c.Int) c.Int {
-	return 0
-}
-
-//go:linkname Socketpair C.uv_socketpair
-func Socketpair(_type c.Int, protocol c.Int, socketVector [2]OsSock, flag0 c.Int, flag1 c.Int) c.Int {
-	return 0
-}
-
 // llgo:link (*Handle).IsClosing C.uv_is_closing
 func (handle *Handle) IsClosing() c.Int {
 	return 0
@@ -236,6 +210,16 @@ func (handle *Handle) IsWritable() c.Int {
 	return 0
 }
 
+//go:linkname Pipe C.uv_pipe
+func Pipe(fds [2]File, readFlags c.Int, writeFlags c.Int) c.Int {
+	return 0
+}
+
+//go:linkname Socketpair C.uv_socketpair
+func Socketpair(_type c.Int, protocol c.Int, socketVector [2]OsSock, flag0 c.Int, flag1 c.Int) c.Int {
+	return 0
+}
+
 // ----------------------------------------------
 
 /* Req related function and method */
@@ -243,6 +227,9 @@ func (handle *Handle) IsWritable() c.Int {
 //go:linkname ReqSize C.uv_req_size
 func ReqSize(reqType ReqType) uintptr
 
+//go:linkname TypeName C.uv_req_type_name
+func TypeName(reqType ReqType) *c.Char
+
 // llgo:link (*Req).GetData C.uv_req_get_data
 func (req *Req) GetData() c.Pointer {
 	return nil
@@ -256,9 +243,6 @@ func (req *Req) GetType() ReqType {
 	return 0
 }
 
-//go:linkname TypeName C.uv_req_type_name
-func TypeName(reqType ReqType) *c.Char
-
 // ----------------------------------------------
 
 /* Stream related function and method */
@@ -378,14 +362,14 @@ func (tcp *Tcp) CloseReset(closeCb CloseCb) c.Int {
 	return 0
 }
 
-//go:linkname TcpConnect C.uv_tcp_connect
-func TcpConnect(req *Connect, tcp *Tcp, addr *net.SockAddr, connectCb ConnectCb) c.Int
-
 func (tcp *Tcp) GetIoWatcherFd() c.Int {
 	tcp_s := (*C.uv_tcp_t)(c.Pointer(tcp))
 	return c.Int(tcp_s.io_watcher.fd)
 }
 
+//go:linkname TcpConnect C.uv_tcp_connect
+func TcpConnect(req *Connect, tcp *Tcp, addr *net.SockAddr, connectCb ConnectCb) c.Int
+
 // ----------------------------------------------
 
 /* Udp related function and method */
@@ -456,9 +440,6 @@ func (udp *Udp) SetTTL(ttl c.Int) c.Int {
 	return 0
 }
 
-//go:linkname Send C.uv_udp_send
-func Send(req *UdpSend, udp *Udp, bufs *Buf, nbufs c.Uint, addr *net.SockAddr, sendCb UdpSendCb) c.Int
-
 // llgo:link (*Udp).TrySend C.uv_udp_try_send
 func (udp *Udp) TrySend(bufs *Buf, nbufs c.Uint, addr *net.SockAddr) c.Int {
 	return 0
@@ -489,8 +470,13 @@ func (udp *Udp) GetSendQueueCount() uintptr {
 	return 0
 }
 
+//go:linkname Send C.uv_udp_send
+func Send(req *UdpSend, udp *Udp, bufs *Buf, nbufs c.Uint, addr *net.SockAddr, sendCb UdpSendCb) c.Int
+
 // ----------------------------------------------
 
+/* DNS related function and method */
+
 //go:linkname Ip4Addr C.uv_ip4_addr
 func Ip4Addr(ip *c.Char, port c.Int, addr *net.SockaddrIn) c.Int