From: Thomas Quinot Date: Wed, 21 May 2008 07:01:56 +0000 (+0000) Subject: New file. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=92c708d23c0ae051dde4f60211952bf727719cd5;p=gcc.git New file. From-SVN: r135709 --- diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index 1a28e6eac72..b752aefad40 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,3 +1,7 @@ +2008-05-21 Thomas Quinot + + * g-sothco.ads, g-sothco.adb: New files. + 2008-05-20 Thomas Quinot * Makefile.rtl (GNAT.Sockets.Thin_Common): New unit. diff --git a/gcc/ada/g-sothco.adb b/gcc/ada/g-sothco.adb new file mode 100644 index 00000000000..590bffeee80 --- /dev/null +++ b/gcc/ada/g-sothco.adb @@ -0,0 +1,79 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G N A T . S O C K E T S . T H I N _ C O M M O N -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2008, AdaCore -- +-- -- +-- 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, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, 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. -- +-- -- +------------------------------------------------------------------------------ + +package body GNAT.Sockets.Thin_Common is + + ----------------- + -- Set_Address -- + ----------------- + + procedure Set_Address + (Sin : Sockaddr_In_Access; + Address : In_Addr) + is + begin + Sin.Sin_Addr := Address; + end Set_Address; + + ---------------- + -- Set_Family -- + ---------------- + + procedure Set_Family + (Length_And_Family : out Sockaddr_Length_And_Family; + Family : Family_Type) + is + C_Family : C.int renames Families (Family); + Has_Sockaddr_Len : constant Boolean := Constants.Has_Sockaddr_Len /= 0; + begin + if Has_Sockaddr_Len then + Length_And_Family.Length := Lengths (Family); + Length_And_Family.Char_Family := C.unsigned_char (C_Family); + else + Length_And_Family.Short_Family := C.unsigned_short (C_Family); + end if; + end Set_Family; + + -------------- + -- Set_Port -- + -------------- + + procedure Set_Port + (Sin : Sockaddr_In_Access; + Port : C.unsigned_short) + is + begin + Sin.Sin_Port := Port; + end Set_Port; + +end GNAT.Sockets.Thin_Common; diff --git a/gcc/ada/g-sothco.ads b/gcc/ada/g-sothco.ads new file mode 100644 index 00000000000..fee37615fb4 --- /dev/null +++ b/gcc/ada/g-sothco.ads @@ -0,0 +1,326 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G N A T . S O C K E T S . T H I N _ C O M M O N -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2008, AdaCore -- +-- -- +-- 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, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, 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 is the target-independent part of the thin sockets mapping. +-- This package should not be directly with'ed by an applications program. + +with Ada.Unchecked_Conversion; + +with Interfaces.C; +with Interfaces.C.Pointers; +with Interfaces.C.Strings; + +with GNAT.Sockets.Constants; + +package GNAT.Sockets.Thin_Common is + + package C renames Interfaces.C; + + use type C.int; + -- This is so we can declare the Failure constant below + + Success : constant C.int := 0; + Failure : constant C.int := -1; + + type time_t is + range -2 ** (8 * Constants.SIZEOF_tv_sec - 1) + .. 2 ** (8 * Constants.SIZEOF_tv_sec - 1) - 1; + for time_t'Size use 8 * Constants.SIZEOF_tv_sec; + pragma Convention (C, time_t); + + type suseconds_t is + range -2 ** (8 * Constants.SIZEOF_tv_usec - 1) + .. 2 ** (8 * Constants.SIZEOF_tv_usec - 1) - 1; + for suseconds_t'Size use 8 * Constants.SIZEOF_tv_usec; + pragma Convention (C, suseconds_t); + + type Timeval is record + Tv_Sec : time_t; + Tv_Usec : suseconds_t; + end record; + pragma Convention (C, Timeval); + + type Timeval_Access is access all Timeval; + pragma Convention (C, Timeval_Access); + + Immediat : constant Timeval := (0, 0); + + ------------------------------------------- + -- Mapping tables to low level constants -- + ------------------------------------------- + + Families : constant array (Family_Type) of C.int := + (Family_Inet => Constants.AF_INET, + Family_Inet6 => Constants.AF_INET6); + + Lengths : constant array (Family_Type) of C.unsigned_char := + (Family_Inet => Constants.SIZEOF_sockaddr_in, + Family_Inet6 => Constants.SIZEOF_sockaddr_in6); + + ---------------------------- + -- Generic socket address -- + ---------------------------- + + -- Common header + + -- All socket address types (struct sockaddr, struct sockaddr_storage, + -- and protocol specific address types) start with the same 2-byte header, + -- which is either a length and a family (one byte each) or just a two-byte + -- family. The following unchecked union describes the two possible layouts + -- and is meant to be constrained with Constants.Have_Sockaddr_Len. + + type Sockaddr_Length_And_Family + (Has_Sockaddr_Len : Boolean := False) + is record + case Has_Sockaddr_Len is + when True => + Length : C.unsigned_char; + Char_Family : C.unsigned_char; + + when False => + Short_Family : C.unsigned_short; + end case; + end record; + pragma Unchecked_Union (Sockaddr_Length_And_Family); + pragma Convention (C, Sockaddr_Length_And_Family); + + procedure Set_Family + (Length_And_Family : out Sockaddr_Length_And_Family; + Family : Family_Type); + -- Set the family component to the appropriate value for Family, and also + -- set Length accordingly if applicable on this platform. + + type Sockaddr is record + Sa_Family : Sockaddr_Length_And_Family; + -- Address family (and address length on some platforms) + + Sa_Data : C.char_array (1 .. 14) := (others => C.nul); + -- Family-specific data + -- Note that some platforms require that all unused (reserved) bytes + -- in addresses be initialized to 0 (e.g. VxWorks). + end record; + pragma Convention (C, Sockaddr); + -- Generic socket address + + type Sockaddr_Access is access all Sockaddr; + pragma Convention (C, Sockaddr_Access); + -- Access to socket address + + ---------------------------- + -- AF_INET socket address -- + ---------------------------- + + type In_Addr is record + S_B1, S_B2, S_B3, S_B4 : C.unsigned_char; + end record; + for In_Addr'Alignment use C.int'Alignment; + pragma Convention (C, In_Addr); + -- IPv4 address, represented as a network-order C.int. Note that the + -- underlying operating system may assume that values of this type have + -- C.int alignment, so we need to provide a suitable alignment clause here. + + function To_In_Addr is new Ada.Unchecked_Conversion (C.int, In_Addr); + function To_Int is new Ada.Unchecked_Conversion (In_Addr, C.int); + + 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_In is record + Sin_Family : Sockaddr_Length_And_Family; + -- Address family (and address length on some platforms) + + Sin_Port : C.unsigned_short; + -- Port in network byte order + + Sin_Addr : In_Addr; + -- IPv4 address + + Sin_Zero : C.char_array (1 .. 8) := (others => C.nul); + -- Padding + -- Note that some platforms require that all unused (reserved) bytes + -- in addresses be initialized to 0 (e.g. VxWorks). + 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_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 + + --------------------- + -- Service entries -- + --------------------- + + 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 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 + + ------------------ + -- Host entries -- + ------------------ + + type Hostent is record + H_Name : C.Strings.chars_ptr; + H_Aliases : Chars_Ptr_Pointers.Pointer; + H_Addrtype : Constants.H_Addrtype_T; + H_Length : Constants.H_Length_T; + 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 + + ---------------------------- + -- Socket sets management -- + ---------------------------- + + type Int_Access is access all C.int; + pragma Convention (C, Int_Access); + -- Access to C integers + + 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 C.int; + -- Check whether Socket is in the socket set, return a non-zero + -- value if it is, zero if it is not. + + 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 + + ------------------------------------------ + -- Pairs of signalling file descriptors -- + ------------------------------------------ + + type Two_Ints is array (0 .. 1) of C.int; + pragma Convention (C, Two_Ints); + -- Container for two int values + + subtype Fd_Pair is Two_Ints; + -- Two_Ints as used for Create_Signalling_Fds: a pair of connected file + -- descriptors, one of which (the "read end" of the connection) being used + -- for reading, the other one (the "write end") being used for writing. + + Read_End : constant := 0; + Write_End : constant := 1; + -- Indices into an Fd_Pair value providing access to each of the connected + -- file descriptors. + +private + + 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_Common;