Source file netsys.ml
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open Printf
module Debug = struct
let enable = ref false
end
let dlog = Netlog.Debug.mk_dlog "Netsys" Debug.enable
let dlogr = Netlog.Debug.mk_dlogr "Netsys" Debug.enable
let () =
Netlog.Debug.register_module "Netsys" Debug.enable
exception Shutdown_not_supported
let is_win32 =
Sys.os_type = "Win32"
external netsys_is_darwin : unit -> bool = "netsys_is_darwin"
let is_darwin =
netsys_is_darwin()
external int64_of_file_descr : Unix.file_descr -> int64
= "netsys_int64_of_file_descr"
let is_letter =
function
| 'a'..'z' -> true
| 'A'..'Z' -> true
| _ -> false
let is_absolute path =
if is_win32 then
(String.length path >= 3 &&
is_letter path.[0] &&
path.[1] = ':' &&
(path.[2] = '/' || path.[2] = '\\')
) ||
(String.length path >= 2 &&
(path.[0] = '/' || path.[0] = '\\') &&
(path.[1] = '/' || path.[1] = '\\')
)
else
path <> "" && path.[0] = '/'
let abspath_w32 path =
Netsys_win32.get_long_path_name
(Netsys_win32.get_full_path_name path)
let abspath path =
if is_win32 then
abspath_w32 path
else
try
Netsys_posix.realpath path
with
| Invalid_argument _ ->
if is_absolute path then
path
else
Filename.concat
(Unix.getcwd())
path
let restart = Netsys_impl_util.restart
let restart_tmo = Netsys_impl_util.restart_tmo
let restarting_select fd_rd fd_wr fd_oob tmo =
restart_tmo (Unix.select fd_rd fd_wr fd_oob) tmo
let sleep t =
let select =
if is_win32 then Netsys_win32.real_select else Unix.select in
let _,_,_ =
select [] [] [] t in
()
let restarting_sleep t =
restart_tmo sleep t
let getpeername fd =
try
Unix.getpeername fd
with
| Unix.Unix_error(Unix.EINVAL,a1,a2) ->
raise(Unix.Unix_error(Unix.ENOTCONN,a1,a2))
let domain_of_inet_addr addr =
Unix.domain_of_sockaddr(Unix.ADDR_INET(addr,0))
let protostring_of_inet_addr ip = (Obj.magic ip)
let inet_addr_of_protostring s =
let l = String.length s in
if l = 4 || l = 16 then (Obj.magic s) else
invalid_arg "Netsys.inet_addr_of_protostring"
external _exit : int -> unit = "netsys__exit";;
let binop_inet_addr f (ip1 : Unix.inet_addr) (ip2 : Unix.inet_addr) =
let s1 = (Obj.magic ip1 : string) in
let s2 = (Obj.magic ip2 : string) in
let l = String.length s1 in
if l <> String.length s2 then
failwith "logand_inet_addr";
let s3 = Bytes.create l in
for k = 0 to l-1 do
Bytes.set s3 k (Char.chr(f (Char.code s1.[k]) (Char.code s2.[k])));
done;
(Obj.magic s3 : Unix.inet_addr)
let logand_inet_addr =
binop_inet_addr ( land )
let logor_inet_addr =
binop_inet_addr ( lor )
let logxor_inet_addr =
binop_inet_addr ( lxor )
let lognot_inet_addr ip =
binop_inet_addr
(fun p1 p2 -> lnot p1)
ip
ip
let norm_inet_addr (ip : Unix.inet_addr) =
if String.length (Obj.magic ip) = 16 then
let ip1 =
logand_inet_addr
ip
(Unix.inet_addr_of_string "ffff:ffff:ffff:ffff:ffff:ffff::0") in
if (ip1 = (Unix.inet_addr_of_string "0000:0000:0000:0000:0000:ffff::0") ||
ip1 = (Unix.inet_addr_of_string "0000:0000:0000:0000:0000:0000::0")) &&
ip <> Unix.inet6_addr_any && ip <> Unix.inet6_addr_loopback
then
Obj.magic (String.sub (Obj.magic ip) 12 4)
else
ip
else
ip
let ipv6_inet_addr (ip : Unix.inet_addr) =
if String.length (Obj.magic ip) = 4 then
Obj.magic (String.make 10 '\x00' ^ String.make 2 '\xff' ^ Obj.magic ip)
else
ip
let is_ipv4_inet_addr (ip : Unix.inet_addr) =
String.length (Obj.magic (norm_inet_addr ip)) = 4
let is_ipv6_inet_addr (ip : Unix.inet_addr) =
String.length (Obj.magic (norm_inet_addr ip)) = 16
let is_multicast_inet_addr ip =
let ip1 = norm_inet_addr ip in
if String.length (Obj.magic ip1) = 4 then
logand_inet_addr
ip1
(Unix.inet_addr_of_string "240.0.0.0")
= (Unix.inet_addr_of_string "224.0.0.0")
else
if String.length (Obj.magic ip1) = 16 then
logand_inet_addr
ip1
(Unix.inet_addr_of_string "ffff::0")
= (Unix.inet_addr_of_string "ff00::0")
else
false
external test_for_ip6_global_addr : unit -> bool
= "netsys_test_for_ip6_global_addr"
let ipv6 = ref (test_for_ip6_global_addr())
let is_ipv6_system() = !ipv6
let set_ipv6_system b = ipv6 := b
type fd_style =
[ `Read_write
| `Recv_send of Unix.sockaddr * Unix.sockaddr
| `Recv_send_implied
| `Recvfrom_sendto
| `W32_pipe
| `W32_pipe_server
| `W32_event
| `W32_process
| `W32_input_thread
| `W32_output_thread
| `TLS of Netsys_crypto_types.file_tls_endpoint
]
let get_fd_style fd =
let w32_obj_opt =
try Some(Netsys_win32.lookup fd)
with Not_found -> None in
match w32_obj_opt with
| Some (Netsys_win32.W32_pipe _) ->
`W32_pipe
| Some (Netsys_win32.W32_pipe_server _) ->
`W32_pipe_server
| Some (Netsys_win32.W32_event _) ->
`W32_event
| Some (Netsys_win32.W32_process _) ->
`W32_process
| Some (Netsys_win32.W32_input_thread _) ->
`W32_input_thread
| Some (Netsys_win32.W32_output_thread _) ->
`W32_output_thread
| None ->
try
let _socktype = Unix.getsockopt_int fd Unix.SO_TYPE in
ow check whether the socket is connected or not: *)
try
let sockaddr = Unix.getsockname fd in
let peeraddr = getpeername fd in
`Recv_send(sockaddr,peeraddr)
with
| Unix.Unix_error(Unix.ENOTCONN,_,_) ->
`Recvfrom_sendto
| Unix.Unix_error(Unix.ENOTSOCK,_,_) ->
failwith "Got unexpected ENOTSOCK"
| _e ->
`Recv_send_implied
with
| Unix.Unix_error((Unix.ENOTSOCK|Unix.EINVAL),_,_) ->
`Read_write
| Unix.Unix_error((Unix.ENOENT,_,_)) when is_win32 ->
`Read_write
| e ->
Netlog.log `Crit
("get_fd_style: Exception: " ^ Netexn.to_string e);
assert false
let string_of_sockaddr ?(norm=false) =
function
| Unix.ADDR_INET(inet,port) ->
let inet =
if norm then norm_inet_addr inet else inet in
( match domain_of_inet_addr inet with
| Unix.PF_INET ->
Unix.string_of_inet_addr inet ^ ":" ^ string_of_int port
| Unix.PF_INET6 ->
"[" ^ Unix.string_of_inet_addr inet ^ "]:" ^ string_of_int port
| _ ->
assert false
)
| Unix.ADDR_UNIX path ->
String.escaped path
let string_of_fd_style =
function
| `Read_write -> "Read_write"
| `Recv_send (sockaddr,peeraddr) ->
"Recv_send(" ^ string_of_sockaddr sockaddr ^ "," ^
string_of_sockaddr peeraddr ^ ")"
| `Recv_send_implied -> "Recv_send_implied"
| `Recvfrom_sendto -> "Recvfrom_sendto"
| `W32_pipe -> "W32_pipe"
| `W32_pipe_server -> "W32_pipe_server"
| `W32_event -> "W32_event"
| `W32_process -> "W32_process"
| `W32_input_thread -> "W32_input_thread"
| `W32_output_thread -> "W32_output_thread"
| `TLS _ -> "TLS"
let string_of_fd fd =
let st = get_fd_style fd in
let fdi = int64_of_file_descr fd in
match st with
| `Read_write ->
sprintf "fd<%Ld>" fdi
| `Recv_send(sockaddr,peeraddr) ->
sprintf "fd<%Ld=socket(%s,%s)>"
fdi (string_of_sockaddr sockaddr) (string_of_sockaddr peeraddr)
| `Recv_send_implied ->
sprintf "fd<%Ld=socket>" fdi
| `Recvfrom_sendto ->
sprintf "fd<%Ld=socket>" fdi
| `W32_pipe ->
let p = Netsys_win32.lookup_pipe fd in
sprintf "fd<%Ld=w32_pipe(%s)>" fdi (Netsys_win32.pipe_name p)
| `W32_pipe_server ->
let p = Netsys_win32.lookup_pipe_server fd in
sprintf "fd<%Ld=w32_pipe_server(%s)>"
fdi (Netsys_win32.pipe_server_name p)
| `W32_event ->
sprintf "fd<%Ld=w32_event>" fdi
| `W32_process ->
let p = Netsys_win32.lookup_process fd in
sprintf "fd<%Ld=w32_process(%d)>" fdi (Netsys_win32.win_pid p)
| `W32_input_thread ->
sprintf "fd<%Ld=w32_input_thread>" fdi
| `W32_output_thread ->
sprintf "fd<%Ld=w32_output_thread>" fdi
let wait_until_readable fd_style fd tmo =
dlogr (fun () -> sprintf "wait_until_readable fd=%Ld tmo=%f"
(int64_of_file_descr fd) tmo);
if Netsys_posix.have_poll() then
restart_tmo
(Netsys_posix.poll_single fd true false false) tmo
else
match fd_style with
| `Read_write when is_win32 ->
true
| `W32_pipe ->
let ph = Netsys_win32.lookup_pipe fd in
Netsys_win32.pipe_wait_rd ph tmo
| `W32_pipe_server ->
let ph = Netsys_win32.lookup_pipe_server fd in
Netsys_win32.pipe_wait_connect ph tmo
| `W32_event ->
let eo = Netsys_win32.lookup_event fd in
Netsys_win32.event_wait eo tmo
| `W32_input_thread ->
let ithr = Netsys_win32.lookup_input_thread fd in
let eo = Netsys_win32.input_thread_event ithr in
Netsys_win32.event_wait eo tmo
| `W32_process
| `W32_output_thread ->
sleep tmo; false
| `TLS ep ->
let module Endpoint =
(val ep : Netsys_crypto_types.FILE_TLS_ENDPOINT) in
Endpoint.TLS.recv_will_not_block Endpoint.endpoint || (
let l,_,_ =
restart_tmo (Unix.select [Endpoint.rd_file] [] []) tmo in
l <> []
)
| _ ->
let l,_,_ = restart_tmo (Unix.select [fd] [] []) tmo in
l <> []
let wait_until_writable fd_style fd tmo =
dlogr (fun () -> sprintf "wait_until_writable fd=%Ld tmo=%f"
(int64_of_file_descr fd) tmo);
if Netsys_posix.have_poll() then
restart_tmo
(Netsys_posix.poll_single fd false true false) tmo
else
match fd_style with
| `Read_write when is_win32 ->
true
| `W32_pipe ->
let ph = Netsys_win32.lookup_pipe fd in
Netsys_win32.pipe_wait_wr ph tmo
| `W32_pipe_server ->
let ph = Netsys_win32.lookup_pipe_server fd in
Netsys_win32.pipe_wait_connect ph tmo
| `W32_event ->
let eo = Netsys_win32.lookup_event fd in
Netsys_win32.event_wait eo tmo
| `W32_output_thread ->
let othr = Netsys_win32.lookup_output_thread fd in
let eo = Netsys_win32.output_thread_event othr in
Netsys_win32.event_wait eo tmo
| `W32_input_thread
| `W32_process ->
sleep tmo; false
| `TLS ep ->
let module Endpoint =
(val ep : Netsys_crypto_types.FILE_TLS_ENDPOINT) in
let l,_,_ = restart_tmo (Unix.select [] [Endpoint.wr_file] []) tmo in
l <> []
| _ ->
let _,l,_ = restart_tmo (Unix.select [] [fd] []) tmo in
l <> []
let wait_until_prird fd_style fd tmo =
dlogr (fun () -> sprintf "wait_until_prird fd=%Ld tmo=%f"
(int64_of_file_descr fd) tmo);
if Netsys_posix.have_poll() then
restart_tmo
(Netsys_posix.poll_single fd false false true) tmo
else
match fd_style with
| `Read_write when is_win32 ->
true
| `W32_pipe ->
sleep tmo; false
| `W32_pipe_server ->
let ph = Netsys_win32.lookup_pipe_server fd in
Netsys_win32.pipe_wait_connect ph tmo
| `W32_event ->
let eo = Netsys_win32.lookup_event fd in
Netsys_win32.event_wait eo tmo
| `W32_input_thread
| `W32_output_thread
| `W32_process ->
sleep tmo; false
| _ ->
let _,_,l = restart_tmo (Unix.select [] [] [fd]) tmo in
l <> []
let is_readable fd_style fd = wait_until_readable fd_style fd 0.0
let is_writable fd_style fd = wait_until_writable fd_style fd 0.0
let is_prird fd_style fd = wait_until_prird fd_style fd 0.0
let rec restart_wait mode fd_style fd f arg =
try
f arg
with
| Unix.Unix_error(Unix.EINTR,_,_) ->
restart_wait mode fd_style fd f arg
| Unix.Unix_error(Unix.EAGAIN,_,_)
| Unix.Unix_error(Unix.EWOULDBLOCK,_,_) ->
(match mode with
| `R ->
ignore(wait_until_readable fd_style fd (-1.0));
restart_wait mode fd_style fd f arg
| `W ->
ignore(wait_until_writable fd_style fd (-1.0));
restart_wait mode fd_style fd f arg
)
| Netsys_types.EAGAIN_RD ->
ignore(wait_until_readable fd_style fd (-1.0));
restart_wait mode fd_style fd f arg
| Netsys_types.EAGAIN_WR ->
ignore(wait_until_writable fd_style fd (-1.0));
restart_wait mode fd_style fd f arg
let gwrite_tstr fd_style fd ts pos len =
dlogr (fun () -> sprintf "gwrite fd=%Ld len=%d"
(int64_of_file_descr fd) len);
match fd_style with
| `Read_write ->
( match ts with
| `Bytes s ->
Unix.single_write fd s pos len
| `String s ->
#ifdef HAVE_BYTES
Unix.single_write_substring fd s pos len
#else
Unix.single_write fd s pos len
#endif
| `Memory s ->
Netsys_mem.mem_write fd s pos len
)
| `Recv_send _
| `Recv_send_implied ->
( match ts with
| `Bytes s ->
Unix.send fd s pos len []
| `String s ->
#ifdef HAVE_BYTES
Unix.send_substring fd s pos len []
#else
Unix.send fd s pos len []
#endif
| `Memory s ->
Netsys_mem.mem_send fd s pos len []
)
| `Recvfrom_sendto ->
failwith "Netsys.gwrite: the socket is unconnected"
| `W32_pipe ->
let ph = Netsys_win32.lookup_pipe fd in
( match ts with
| `Bytes s ->
Netsys_win32.pipe_write ph s pos len
| `String s ->
Netsys_win32.pipe_write_string ph s pos len
| `Memory s ->
let b =
Netsys_mem.bytes_of_memory
(Bigarray.Array1.sub s pos len) in
Netsys_win32.pipe_write ph b 0 len
)
| `W32_pipe_server ->
failwith "Netsys.gwrite: cannot write to pipe servers"
| `W32_event ->
failwith "Netsys.gwrite: cannot write to event descriptor"
| `W32_process ->
failwith "Netsys.gwrite: cannot write to process descriptor"
| `W32_input_thread ->
failwith "Netsys.gwrite: cannot write to input thread"
| `W32_output_thread ->
let othr = Netsys_win32.lookup_output_thread fd in
( match ts with
| `Bytes s ->
Netsys_win32.output_thread_write othr s pos len
| `String s ->
Netsys_win32.output_thread_write_string othr s pos len
| `Memory s ->
let b =
Netsys_mem.bytes_of_memory
(Bigarray.Array1.sub s pos len) in
Netsys_win32.output_thread_write othr b 0 len
)
| `TLS endpoint ->
let ep = Netsys_tls.endpoint endpoint in
( match ts with
| `Bytes s ->
Netsys_tls.send ep s pos len
| `String s ->
Netsys_tls.str_send ep s pos len
| `Memory s ->
Netsys_tls.mem_send ep s pos len
)
let gwrite fd_style fd s pos len =
gwrite_tstr fd_style fd (`Bytes s) pos len
let gwrite_tbuf fd_style fd tb pos len =
let ts =
match tb with
| `Bytes s -> `Bytes s
| `String s -> `Bytes s
| `Memory m -> `Memory m in
gwrite_tstr fd_style fd ts pos len
let rec really_gwrite_tstr fd_style fd ts pos len =
try
let n = gwrite_tstr fd_style fd ts pos len in
if n > 0 then
really_gwrite_tstr fd_style fd ts (pos+n) (len-n)
with
| Unix.Unix_error(Unix.EINTR, _, _) ->
really_gwrite_tstr fd_style fd ts pos len
| Unix.Unix_error( (Unix.EAGAIN | Unix.EWOULDBLOCK), _, _)
| Netsys_types.EAGAIN_WR ->
ignore(wait_until_writable fd_style fd (-1.0));
really_gwrite_tstr fd_style fd ts pos len
| Netsys_types.EAGAIN_RD ->
ignore(wait_until_readable fd_style fd (-1.0));
really_gwrite_tstr fd_style fd ts pos len
let really_gwrite fd_style fd s pos len =
really_gwrite_tstr fd_style fd (`Bytes s) pos len
let really_gwrite_tbuf fd_style fd tb pos len =
let ts =
match tb with
| `Bytes s -> `Bytes s
| `String s -> `Bytes s
| `Memory m -> `Memory m in
really_gwrite_tstr fd_style fd ts pos len
let gread_tbuf fd_style fd buf pos len =
dlogr (fun () -> sprintf "gread fd=%Ld len=%d"
(int64_of_file_descr fd) len);
match fd_style with
| `Read_write ->
( match buf with
| `Bytes s
| `String s ->
Unix.read fd s pos len
| `Memory s ->
Netsys_mem.mem_read fd s pos len
)
| `Recv_send _
| `Recv_send_implied ->
( match buf with
| `Bytes s
| `String s ->
Unix.recv fd s pos len []
| `Memory s ->
Netsys_mem.mem_recv fd s pos len []
)
| `Recvfrom_sendto ->
failwith "Netsys.gread: the socket is unconnected"
| `W32_pipe ->
let ph = Netsys_win32.lookup_pipe fd in
( match buf with
| `Bytes s
| `String s ->
Netsys_win32.pipe_read ph s pos len
| `Memory s ->
let b = Bytes.create len in
let n = Netsys_win32.pipe_read ph b 0 len in
Netsys_mem.blit_bytes_to_memory b 0 s 0 n;
n
)
| `W32_pipe_server ->
failwith "Netsys.gwrite: cannot read from pipe servers"
| `W32_event ->
failwith "Netsys.gread: cannot read from event descriptor"
| `W32_process ->
failwith "Netsys.gread: cannot read from process descriptor"
| `W32_output_thread ->
failwith "Netsys.gread: cannot read from output thread"
| `W32_input_thread ->
let ithr = Netsys_win32.lookup_input_thread fd in
( match buf with
| `Bytes s
| `String s ->
Netsys_win32.input_thread_read ithr s pos len
| `Memory s ->
let b = Bytes.create len in
let n = Netsys_win32.input_thread_read ithr b 0 len in
Netsys_mem.blit_bytes_to_memory b 0 s 0 n;
n
)
| `TLS endpoint ->
let ep = Netsys_tls.endpoint endpoint in
( match buf with
| `Bytes s
| `String s ->
Netsys_tls.recv ep s pos len
| `Memory s ->
Netsys_tls.mem_recv ep s pos len
)
let gread fd_style fd buf pos len =
gread_tbuf fd_style fd (`Bytes buf) pos len
let blocking_gread_tbuf fd_style fd s pos len =
let rec loop pos len p =
if len >= 0 then
try
let n = gread_tbuf fd_style fd s pos len in
if n=0 then
p
else
loop (pos+n) (len-n) (p+n)
with
| Unix.Unix_error(Unix.EINTR, _, _) ->
loop pos len p
| Unix.Unix_error( (Unix.EAGAIN | Unix.EWOULDBLOCK), _, _)
| Netsys_types.EAGAIN_RD ->
ignore(wait_until_readable fd_style fd (-1.0));
loop pos len p
| Netsys_types.EAGAIN_WR ->
ignore(wait_until_writable fd_style fd (-1.0));
loop pos len p
else
p
in
loop pos len 0
let blocking_gread fd_style fd s pos len =
blocking_gread_tbuf fd_style fd (`Bytes s) pos len
let really_gread_tbuf fd_style fd ts pos len =
let p = blocking_gread_tbuf fd_style fd ts pos len in
if p < len then raise End_of_file;
()
let really_gread fd_style fd s pos len =
really_gread_tbuf fd_style fd (`Bytes s) pos len
let wait_until_connected fd tmo =
dlogr (fun () -> sprintf "wait_until_connected fd=%Ld tmo=%f"
(int64_of_file_descr fd) tmo);
if is_win32 then
try
let w32 = Netsys_win32.lookup fd in
( match w32 with
| Netsys_win32.W32_pipe _ -> true diately connected *)
| _ ->
failwith "Netsys.wait_until_connected: bad descriptor type"
)
with
| Not_found ->
let l1,_,l2 = Netsys_win32.real_select [] [fd] [fd] tmo in
l1 <> [] || l2 <> []
else
wait_until_writable `Recv_send fd tmo
let catch_exn label getdetail f arg =
try
f arg
with
| error ->
let detail = getdetail arg in
( try
Netlog.logf `Crit
"%s (%s): Exception %s"
label detail (Netexn.to_string error)
with
| _ -> ()
)
let is_std fd std_fd std_num =
if is_win32 then
Netsys_win32.is_crt_fd fd std_num
else
fd = std_fd
let is_stdin fd = is_std fd Unix.stdin 0
let is_stdout fd = is_std fd Unix.stdout 1
let is_stderr fd = is_std fd Unix.stderr 2
let set_close_on_exec fd =
if is_win32 then
Netsys_win32.modify_close_on_exec fd true
else
Unix.set_close_on_exec fd
let clear_close_on_exec fd =
if is_win32 then
Netsys_win32.modify_close_on_exec fd false
else
Unix.clear_close_on_exec fd
let gshutdown fd_style fd cmd =
dlogr (fun () -> sprintf "gshutdown fd=%Ld cmd=%s"
(int64_of_file_descr fd)
(match cmd with
| Unix.SHUTDOWN_SEND -> "SEND"
| Unix.SHUTDOWN_RECEIVE -> "RECEIVE"
| Unix.SHUTDOWN_ALL -> "ALL"
)
);
match fd_style with
| `Recv_send _
| `Recv_send_implied ->
( try
Unix.shutdown fd cmd
with
| Unix.Unix_error(Unix.ENOTCONN, _, _) -> ()
)
| `W32_pipe ->
if cmd <> Unix.SHUTDOWN_ALL then
raise(Unix.Unix_error(Unix.EPERM, "Netsys.gshutdown", ""));
let p = Netsys_win32.lookup_pipe fd in
Netsys_win32.pipe_shutdown p
| `W32_pipe_server ->
if cmd <> Unix.SHUTDOWN_ALL then
raise(Unix.Unix_error(Unix.EPERM, "Netsys.gshutdown", ""));
let p = Netsys_win32.lookup_pipe_server fd in
Netsys_win32.pipe_shutdown_server p
| `W32_output_thread ->
if cmd <> Unix.SHUTDOWN_RECEIVE then (
let othr = Netsys_win32.lookup_output_thread fd in
Netsys_win32.close_output_thread othr
)
| `TLS endpoint ->
Netsys_tls.shutdown (Netsys_tls.endpoint endpoint) cmd
| _ ->
raise Shutdown_not_supported
let gclose fd_style fd =
dlogr (fun () -> sprintf "gclose fd=%Ld" (int64_of_file_descr fd));
let fd_detail fd =
Printf.sprintf "fd %Ld" (int64_of_file_descr fd) in
let pipe_detail (fd,p) =
Printf.sprintf "fd %Ld as pipe %s"
(int64_of_file_descr fd)
(Netsys_win32.pipe_name p) in
let psrv_detail (fd,p) =
Printf.sprintf "fd %Ld as pipe server %s"
(int64_of_file_descr fd)
(Netsys_win32.pipe_server_name p) in
let ithr_detail (fd,p) =
Printf.sprintf "fd %Ld as input thread for %Ld"
(int64_of_file_descr fd)
(int64_of_file_descr(Netsys_win32.input_thread_descr p)) in
let othr_detail (fd,p) =
Printf.sprintf "fd %Ld as output thread for %Ld"
(int64_of_file_descr fd)
(int64_of_file_descr(Netsys_win32.output_thread_descr p)) in
match fd_style with
| `Read_write
| `Recvfrom_sendto ->
catch_exn
"Unix.close" fd_detail
Unix.close fd
| `Recv_send _
| `Recv_send_implied ->
catch_exn
"Unix.shutdown" fd_detail
(fun fd ->
try
Unix.shutdown fd Unix.SHUTDOWN_ALL
with
| Unix.Unix_error(Unix.ENOTCONN, _, _) -> ()
)
fd;
catch_exn
"Unix.close" fd_detail
Unix.close fd
| `W32_pipe ->
let p = Netsys_win32.lookup_pipe fd in
catch_exn
"Netsys_win32.pipe_shutdown" pipe_detail
(fun (fd,p) -> Netsys_win32.pipe_shutdown p)
(fd,p);
catch_exn
"Unix.close" fd_detail
Unix.close fd;
Netsys_win32.unregister fd
| `W32_pipe_server ->
let p = Netsys_win32.lookup_pipe_server fd in
catch_exn
"Netsys_win32.pipe_server_shutdown" psrv_detail
(fun (fd,p) -> Netsys_win32.pipe_shutdown_server p)
(fd,p);
catch_exn
"Unix.close" fd_detail
Unix.close fd;
Netsys_win32.unregister fd
| `W32_event | `W32_process ->
catch_exn
"Unix.close" fd_detail
Unix.close fd;
Netsys_win32.unregister fd
| `W32_input_thread ->
let ithr = Netsys_win32.lookup_input_thread fd in
catch_exn
"Netsys_win32.cancel_input_thread" ithr_detail
(fun (fd,ithr) -> Netsys_win32.cancel_input_thread ithr)
(fd,ithr);
catch_exn
"Unix.close" fd_detail
Unix.close fd;
Netsys_win32.unregister fd
| `W32_output_thread ->
let othr = Netsys_win32.lookup_output_thread fd in
catch_exn
"Netsys_win32.cancel_output_thread" othr_detail
(fun (fd,othr) -> Netsys_win32.cancel_output_thread othr)
(fd,othr);
catch_exn
"Unix.close" fd_detail
Unix.close fd;
Netsys_win32.unregister fd
| `TLS endpoint ->
Netsys_tls.shutdown (Netsys_tls.endpoint endpoint) Unix.SHUTDOWN_ALL;
let module Endpoint =
(val endpoint : Netsys_crypto_types.FILE_TLS_ENDPOINT) in
catch_exn
"Unix.close" fd_detail
Unix.close Endpoint.rd_file;
if Endpoint.wr_file <> Endpoint.rd_file then
catch_exn
"Unix.close" fd_detail
Unix.close Endpoint.wr_file;
if fd <> Endpoint.rd_file then
catch_exn
"Unix.close" fd_detail
Unix.close fd
external unix_error_of_code : int -> Unix.error = "netsys_unix_error_of_code"
let connect_check fd =
let do_check =
if is_win32 then
try
let w32 = Netsys_win32.lookup fd in
( match w32 with
| Netsys_win32.W32_pipe _ -> false
| _ ->
failwith "Netsys.connect_check: bad descriptor type"
)
with
| Not_found ->
true
else
true in
if do_check then (
let e_opt = Unix.getsockopt_error fd in
try
ignore(getpeername fd);
()
with
| Unix.Unix_error(Unix.ENOTCONN,_,_) ->
let detail =
try
let own_addr = Unix.getsockname fd in
string_of_sockaddr own_addr
with _ -> "n/a" in
match e_opt with
| Some e ->
raise(Unix.Unix_error(e,
"connect_check", detail))
| None ->
raise(Unix.Unix_error(Unix.ENOTCONN,
"connect_check", detail))
)
external mcast_set_loop : Unix.file_descr -> bool -> unit
= "netsys_mcast_set_loop"
external mcast_set_ttl : Unix.file_descr -> int -> unit
= "netsys_mcast_set_ttl"
external mcast_add_membership :
Unix.file_descr -> Unix.inet_addr -> Unix.inet_addr -> unit
= "netsys_mcast_add_membership"
external mcast_drop_membership :
Unix.file_descr -> Unix.inet_addr -> Unix.inet_addr -> unit
= "netsys_mcast_drop_membership"
let f_moncontrol = ref (fun _ -> ())
let moncontrol b =
!f_moncontrol b
let set_moncontrol f =
f_moncontrol := f
let really_write = really_gwrite `Read_write
let blocking_read = blocking_gread `Read_write
let really_read = really_gread `Read_write
let int_of_file_descr = Netsys_posix.int_of_file_descr
let file_descr_of_int = Netsys_posix.file_descr_of_int
let have_posix_shm = Netsys_posix.have_posix_shm
type shm_open_flag =
Netsys_posix.shm_open_flag =
| SHM_O_RDONLY
| SHM_O_RDWR
| SHM_O_CREAT
| SHM_O_EXCL
| SHM_O_TRUNC
let shm_open = Netsys_posix.shm_open
let shm_unlink = Netsys_posix.shm_unlink