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Diffstat (limited to 'gcc/ada/g-socthi-mingw.ads')
| -rw-r--r-- | gcc/ada/g-socthi-mingw.ads | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/gcc/ada/g-socthi-mingw.ads b/gcc/ada/g-socthi-mingw.ads new file mode 100644 index 00000000000..5ee990e8628 --- /dev/null +++ b/gcc/ada/g-socthi-mingw.ads @@ -0,0 +1,433 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G N A T . S O C K E T S . T H I N -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2001-2004 Ada Core Technologies, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- +-- MA 02111-1307, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This package provides a target dependent thin interface to the sockets +-- layer for use by the GNAT.Sockets package (g-socket.ads). This package +-- should not be directly with'ed by an applications program. + +-- This version is for NT + +with Interfaces.C.Pointers; +with Interfaces.C.Strings; + +with GNAT.Sockets.Constants; + +with System; + +package GNAT.Sockets.Thin is + + package C renames Interfaces.C; + + use type C.int; + -- So that we can declare the Failure constant below. + + Success : constant C.int := 0; + Failure : constant C.int := -1; + + function Socket_Errno return Integer; + -- Returns last socket error number. + + procedure Set_Socket_Errno (Errno : Integer); + -- Set last socket error number. + + function Socket_Error_Message + (Errno : Integer) + return C.Strings.chars_ptr; + -- Returns the error message string for the error number Errno. If + -- Errno is not known it returns "Unknown system error". + + subtype Fd_Set_Access is System.Address; + No_Fd_Set : constant Fd_Set_Access := System.Null_Address; + + type Timeval_Unit is new C.long; + pragma Convention (C, Timeval_Unit); + + type Timeval is record + Tv_Sec : Timeval_Unit; + Tv_Usec : Timeval_Unit; + end record; + pragma Convention (C, Timeval); + + type Timeval_Access is access all Timeval; + pragma Convention (C, Timeval_Access); + + Immediat : constant Timeval := (0, 0); + + type Int_Access is access all C.int; + pragma Convention (C, Int_Access); + -- Access to C integers + + type Chars_Ptr_Array is array (C.size_t range <>) of + aliased C.Strings.chars_ptr; + + package Chars_Ptr_Pointers is + new C.Pointers (C.size_t, C.Strings.chars_ptr, Chars_Ptr_Array, + C.Strings.Null_Ptr); + -- Arrays of C (char *) + + type In_Addr is record + S_B1, S_B2, S_B3, S_B4 : C.unsigned_char; + end record; + pragma Convention (C, In_Addr); + -- Internet address + + type In_Addr_Access is access all In_Addr; + pragma Convention (C, In_Addr_Access); + -- Access to internet address + + Inaddr_Any : aliased constant In_Addr := (others => 0); + -- Any internet address (all the interfaces) + + type In_Addr_Access_Array is array (C.size_t range <>) + of aliased In_Addr_Access; + pragma Convention (C, In_Addr_Access_Array); + package In_Addr_Access_Pointers is + new C.Pointers (C.size_t, In_Addr_Access, In_Addr_Access_Array, null); + -- Array of internet addresses + + type Sockaddr is record + Sa_Family : C.unsigned_short; + Sa_Data : C.char_array (1 .. 14); + end record; + pragma Convention (C, Sockaddr); + -- Socket address + + type Sockaddr_Access is access all Sockaddr; + pragma Convention (C, Sockaddr_Access); + -- Access to socket address + + type Sockaddr_In is record + Sin_Family : C.unsigned_short := Constants.AF_INET; + Sin_Port : C.unsigned_short := 0; + Sin_Addr : In_Addr := Inaddr_Any; + Sin_Zero : C.char_array (1 .. 8) := (others => C.char'Val (0)); + end record; + pragma Convention (C, Sockaddr_In); + -- Internet socket address + + type Sockaddr_In_Access is access all Sockaddr_In; + pragma Convention (C, Sockaddr_In_Access); + -- Access to internet socket address + + procedure Set_Length + (Sin : Sockaddr_In_Access; + Len : C.int); + pragma Inline (Set_Length); + -- Set Sin.Sin_Length to Len. + -- On this platform, nothing is done as there is no such field. + + procedure Set_Family + (Sin : Sockaddr_In_Access; + Family : C.int); + pragma Inline (Set_Family); + -- Set Sin.Sin_Family to Family + + procedure Set_Port + (Sin : Sockaddr_In_Access; + Port : C.unsigned_short); + pragma Inline (Set_Port); + -- Set Sin.Sin_Port to Port + + procedure Set_Address + (Sin : Sockaddr_In_Access; + Address : In_Addr); + pragma Inline (Set_Address); + -- Set Sin.Sin_Addr to Address + + type Hostent is record + H_Name : C.Strings.chars_ptr; + H_Aliases : Chars_Ptr_Pointers.Pointer; + H_Addrtype : C.short; + H_Length : C.short; + H_Addr_List : In_Addr_Access_Pointers.Pointer; + end record; + pragma Convention (C, Hostent); + -- Host entry + + type Hostent_Access is access all Hostent; + pragma Convention (C, Hostent_Access); + -- Access to host entry + + type Servent is record + S_Name : C.Strings.chars_ptr; + S_Aliases : Chars_Ptr_Pointers.Pointer; + S_Port : C.int; + S_Proto : C.Strings.chars_ptr; + end record; + pragma Convention (C, Servent); + -- Service entry + + type Servent_Access is access all Servent; + pragma Convention (C, Servent_Access); + -- Access to service entry + + type Two_Int is array (0 .. 1) of C.int; + pragma Convention (C, Two_Int); + -- Used with pipe() + + function C_Accept + (S : C.int; + Addr : System.Address; + Addrlen : access C.int) return C.int; + + function C_Bind + (S : C.int; + Name : System.Address; + Namelen : C.int) return C.int; + + function C_Close + (Fd : C.int) return C.int; + + function C_Connect + (S : C.int; + Name : System.Address; + Namelen : C.int) return C.int; + + function C_Gethostbyaddr + (Addr : System.Address; + Length : C.int; + Typ : C.int) return Hostent_Access; + + function C_Gethostbyname + (Name : C.char_array) return Hostent_Access; + + function C_Gethostname + (Name : System.Address; + Namelen : C.int) return C.int; + + function C_Getpeername + (S : C.int; + Name : System.Address; + Namelen : access C.int) return C.int; + + function C_Getservbyname + (Name : C.char_array; + Proto : C.char_array) return Servent_Access; + + function C_Getservbyport + (Port : C.int; + Proto : C.char_array) return Servent_Access; + + function C_Getsockname + (S : C.int; + Name : System.Address; + Namelen : access C.int) return C.int; + + function C_Getsockopt + (S : C.int; + Level : C.int; + Optname : C.int; + Optval : System.Address; + Optlen : access C.int) return C.int; + + function C_Inet_Addr + (Cp : C.Strings.chars_ptr) return C.int; + + function C_Ioctl + (S : C.int; + Req : C.int; + Arg : Int_Access) return C.int; + + function C_Listen + (S : C.int; + Backlog : C.int) return C.int; + + function C_Read + (Fildes : C.int; + Buf : System.Address; + Nbyte : C.int) return C.int; + + function C_Readv + (Socket : C.int; + Iov : System.Address; + Iovcnt : C.int) return C.int; + + function C_Recv + (S : C.int; + Buf : System.Address; + Len : C.int; + Flags : C.int) return C.int; + + function C_Recvfrom + (S : C.int; + Buf : System.Address; + Len : C.int; + Flags : C.int; + From : Sockaddr_In_Access; + Fromlen : access C.int) return C.int; + + function C_Select + (Nfds : C.int; + Readfds : Fd_Set_Access; + Writefds : Fd_Set_Access; + Exceptfds : Fd_Set_Access; + Timeout : Timeval_Access) return C.int; + + function C_Send + (S : C.int; + Buf : System.Address; + Len : C.int; + Flags : C.int) return C.int; + + function C_Sendto + (S : C.int; + Msg : System.Address; + Len : C.int; + Flags : C.int; + To : Sockaddr_In_Access; + Tolen : C.int) return C.int; + + function C_Setsockopt + (S : C.int; + Level : C.int; + Optname : C.int; + Optval : System.Address; + Optlen : C.int) return C.int; + + function C_Shutdown + (S : C.int; + How : C.int) return C.int; + + function C_Socket + (Domain : C.int; + Typ : C.int; + Protocol : C.int) return C.int; + + function C_Strerror + (Errnum : C.int) return C.Strings.chars_ptr; + + function C_System + (Command : System.Address) return C.int; + + function C_Write + (Fildes : C.int; + Buf : System.Address; + Nbyte : C.int) return C.int; + + function C_Writev + (Socket : C.int; + Iov : System.Address; + Iovcnt : C.int) return C.int; + + function WSAStartup + (WS_Version : Interfaces.C.int; + WSADataAddress : System.Address) return Interfaces.C.int; + + procedure Free_Socket_Set + (Set : Fd_Set_Access); + -- Free system-dependent socket set. + + procedure Get_Socket_From_Set + (Set : Fd_Set_Access; + Socket : Int_Access; + Last : Int_Access); + -- Get last socket in Socket and remove it from the socket + -- set. The parameter Last is a maximum value of the largest + -- socket. This hint is used to avoid scanning very large socket + -- sets. After a call to Get_Socket_From_Set, Last is set back to + -- the real largest socket in the socket set. + + procedure Insert_Socket_In_Set + (Set : Fd_Set_Access; + Socket : C.int); + -- Insert socket in the socket set + + function Is_Socket_In_Set + (Set : Fd_Set_Access; + Socket : C.int) return Boolean; + -- Check whether Socket is in the socket set + + procedure Last_Socket_In_Set + (Set : Fd_Set_Access; + Last : Int_Access); + -- Find the largest socket in the socket set. This is needed for + -- select(). When Last_Socket_In_Set is called, parameter Last is + -- a maximum value of the largest socket. This hint is used to + -- avoid scanning very large socket sets. After the call, Last is + -- set back to the real largest socket in the socket set. + + function New_Socket_Set + (Set : Fd_Set_Access) return Fd_Set_Access; + -- Allocate a new socket set which is a system-dependent structure + -- and initialize by copying Set if it is non-null, by making it + -- empty otherwise. + + procedure Remove_Socket_From_Set + (Set : Fd_Set_Access; + Socket : C.int); + -- Remove socket from the socket set + + procedure WSACleanup; + + procedure Finalize; + procedure Initialize (Process_Blocking_IO : Boolean := False); + +private + pragma Import (Stdcall, C_Accept, "accept"); + pragma Import (Stdcall, C_Bind, "bind"); + pragma Import (Stdcall, C_Close, "closesocket"); + pragma Import (Stdcall, C_Gethostbyaddr, "gethostbyaddr"); + pragma Import (Stdcall, C_Gethostbyname, "gethostbyname"); + pragma Import (Stdcall, C_Gethostname, "gethostname"); + pragma Import (Stdcall, C_Getpeername, "getpeername"); + pragma Import (Stdcall, C_Getservbyname, "getservbyname"); + pragma Import (Stdcall, C_Getservbyport, "getservbyport"); + pragma Import (Stdcall, C_Getsockname, "getsockname"); + pragma Import (Stdcall, C_Getsockopt, "getsockopt"); + pragma Import (Stdcall, C_Inet_Addr, "inet_addr"); + pragma Import (Stdcall, C_Ioctl, "ioctlsocket"); + pragma Import (Stdcall, C_Listen, "listen"); + pragma Import (C, C_Read, "_read"); + pragma Import (Stdcall, C_Recv, "recv"); + pragma Import (Stdcall, C_Recvfrom, "recvfrom"); + pragma Import (Stdcall, C_Send, "send"); + pragma Import (Stdcall, C_Sendto, "sendto"); + pragma Import (Stdcall, C_Setsockopt, "setsockopt"); + pragma Import (Stdcall, C_Shutdown, "shutdown"); + pragma Import (Stdcall, C_Socket, "socket"); + pragma Import (C, C_Strerror, "strerror"); + pragma Import (C, C_System, "_system"); + pragma Import (C, C_Write, "_write"); + pragma Import (Stdcall, Socket_Errno, "WSAGetLastError"); + pragma Import (Stdcall, Set_Socket_Errno, "WSASetLastError"); + pragma Import (Stdcall, WSAStartup, "WSAStartup"); + pragma Import (Stdcall, WSACleanup, "WSACleanup"); + + pragma Import (C, Free_Socket_Set, "__gnat_free_socket_set"); + pragma Import (C, Get_Socket_From_Set, "__gnat_get_socket_from_set"); + pragma Import (C, Is_Socket_In_Set, "__gnat_is_socket_in_set"); + pragma Import (C, Last_Socket_In_Set, "__gnat_last_socket_in_set"); + pragma Import (C, New_Socket_Set, "__gnat_new_socket_set"); + pragma Import (C, Insert_Socket_In_Set, "__gnat_insert_socket_in_set"); + pragma Import (C, Remove_Socket_From_Set, "__gnat_remove_socket_from_set"); +end GNAT.Sockets.Thin; |