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Diffstat (limited to 'gcc-4.8/gcc/ada/i-vxwoio.ads')
-rw-r--r-- | gcc-4.8/gcc/ada/i-vxwoio.ads | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/gcc-4.8/gcc/ada/i-vxwoio.ads b/gcc-4.8/gcc/ada/i-vxwoio.ads deleted file mode 100644 index dc6954696..000000000 --- a/gcc-4.8/gcc/ada/i-vxwoio.ads +++ /dev/null @@ -1,229 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- I N T E R F A C E S . V X W O R K S . I O -- --- -- --- S p e c -- --- -- --- Copyright (C) 2002-2009, Free Software Foundation, Inc. -- --- -- --- GNARL 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 3, 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. -- --- -- --- As a special exception under Section 7 of GPL version 3, you are granted -- --- additional permissions described in the GCC Runtime Library Exception, -- --- version 3.1, as published by the Free Software Foundation. -- --- -- --- You should have received a copy of the GNU General Public License and -- --- a copy of the GCC Runtime Library Exception along with this program; -- --- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- --- <http://www.gnu.org/licenses/>. -- --- -- --- GNARL was developed by the GNARL team at Florida State University. -- --- Extensive contributions were provided by Ada Core Technologies, Inc. -- --- -- ------------------------------------------------------------------------------- - --- This package provides a binding to the functions fileno and ioctl --- in VxWorks, providing a set of definitions of ioctl function codes --- and options for the use of these functions. - --- A particular use of this interface is to enable use of Get_Immediate --- in Ada.Text_IO. There is no way in VxWorks to provide the desired --- functionality of Get_Immediate (no buffering and no waiting for a --- line return) without flushing the buffer, which violates the Ada --- semantic requirements for Ada.Text_IO. - -with Interfaces.C_Streams; - -package Interfaces.VxWorks.IO is - - ------------------------- - -- The ioctl Interface -- - -------------------------- - - type FUNCODE is new int; - -- Type of the function codes in ioctl - - type IOOPT is mod 2 ** int'Size; - -- Type of the option codes in ioctl - - -- ioctl function codes (for more information see ioLib.h) - -- These values could be generated automatically in System.OS_Constants??? - - FIONREAD : constant FUNCODE := 1; - FIOFLUSH : constant FUNCODE := 2; - FIOOPTIONS : constant FUNCODE := 3; - FIOBAUDRATE : constant FUNCODE := 4; - FIODISKFORMAT : constant FUNCODE := 5; - FIODISKINIT : constant FUNCODE := 6; - FIOSEEK : constant FUNCODE := 7; - FIOWHERE : constant FUNCODE := 8; - FIODIRENTRY : constant FUNCODE := 9; - FIORENAME : constant FUNCODE := 10; - FIOREADYCHANGE : constant FUNCODE := 11; - FIONWRITE : constant FUNCODE := 12; - FIODISKCHANGE : constant FUNCODE := 13; - FIOCANCEL : constant FUNCODE := 14; - FIOSQUEEZE : constant FUNCODE := 15; - FIONBIO : constant FUNCODE := 16; - FIONMSGS : constant FUNCODE := 17; - FIOGETNAME : constant FUNCODE := 18; - FIOGETOPTIONS : constant FUNCODE := 19; - FIOSETOPTIONS : constant FUNCODE := FIOOPTIONS; - FIOISATTY : constant FUNCODE := 20; - FIOSYNC : constant FUNCODE := 21; - FIOPROTOHOOK : constant FUNCODE := 22; - FIOPROTOARG : constant FUNCODE := 23; - FIORBUFSET : constant FUNCODE := 24; - FIOWBUFSET : constant FUNCODE := 25; - FIORFLUSH : constant FUNCODE := 26; - FIOWFLUSH : constant FUNCODE := 27; - FIOSELECT : constant FUNCODE := 28; - FIOUNSELECT : constant FUNCODE := 29; - FIONFREE : constant FUNCODE := 30; - FIOMKDIR : constant FUNCODE := 31; - FIORMDIR : constant FUNCODE := 32; - FIOLABELGET : constant FUNCODE := 33; - FIOLABELSET : constant FUNCODE := 34; - FIOATTRIBSE : constant FUNCODE := 35; - FIOCONTIG : constant FUNCODE := 36; - FIOREADDIR : constant FUNCODE := 37; - FIOFSTATGET : constant FUNCODE := 38; - FIOUNMOUNT : constant FUNCODE := 39; - FIOSCSICOMMAND : constant FUNCODE := 40; - FIONCONTIG : constant FUNCODE := 41; - FIOTRUNC : constant FUNCODE := 42; - FIOGETFL : constant FUNCODE := 43; - FIOTIMESET : constant FUNCODE := 44; - FIOINODETONAM : constant FUNCODE := 45; - FIOFSTATFSGE : constant FUNCODE := 46; - - -- ioctl option values - - OPT_ECHO : constant IOOPT := 16#0001#; - OPT_CRMOD : constant IOOPT := 16#0002#; - OPT_TANDEM : constant IOOPT := 16#0004#; - OPT_7_BIT : constant IOOPT := 16#0008#; - OPT_MON_TRAP : constant IOOPT := 16#0010#; - OPT_ABORT : constant IOOPT := 16#0020#; - OPT_LINE : constant IOOPT := 16#0040#; - OPT_RAW : constant IOOPT := 16#0000#; - OPT_TERMINAL : constant IOOPT := OPT_ECHO or - OPT_CRMOD or - OPT_TANDEM or - OPT_MON_TRAP or - OPT_7_BIT or - OPT_ABORT or - OPT_LINE; - - function fileno (Fp : Interfaces.C_Streams.FILEs) return int; - pragma Import (C, fileno, "fileno"); - -- Binding to the C routine fileno - - function ioctl (Fd : int; Function_Code : FUNCODE; Arg : IOOPT) return int; - pragma Import (C, ioctl, "ioctl"); - -- Binding to the C routine ioctl - -- - -- Note: we are taking advantage of the fact that on currently supported - -- VxWorks targets, it is fine to directly bind to a variadic C function. - - ------------------------------ - -- Control of Get_Immediate -- - ------------------------------ - - -- The procedures in this section make use of the interface to ioctl - -- and fileno to provide a mechanism for enabling unbuffered behavior - -- for Get_Immediate in VxWorks. - - -- The situation is that the RM requires that the use of Get_Immediate - -- be identical to Get except that it is desirable (not required) that - -- there be no buffering or line editing. - - -- Unfortunately, in VxWorks, the only way to enable this desired - -- unbuffered behavior involves changing into raw mode. But this - -- transition into raw mode flushes the input buffer, a behavior - -- not permitted by the RM semantics for Get_Immediate. - - -- Given that Get_Immediate cannot be accurately implemented in - -- raw mode, it seems best not to enable it by default, and instead - -- to require specific programmer action, with the programmer being - -- aware that input may be lost. - - -- The following is an example of the use of the two procedures - -- in this section (Enable_Get_Immediate and Disable_Get_Immediate) - - -- with Ada.Text_IO; use Ada.Text_IO; - -- with Ada.Text_IO.C_Streams; use Ada.Text_IO.C_Streams; - -- with Interfaces.VxWorks.IO; use Interfaces.VxWorks.IO; - - -- procedure Example_IO is - -- Input : Character; - -- Available : Boolean; - -- Success : Boolean; - - -- begin - -- Enable_Get_Immediate (C_Stream (Current_Input), Success); - - -- if Success = False then - -- raise Device_Error; - -- end if; - - -- -- Example with the first type of Get_Immediate - -- -- Waits for an entry on the input. Immediately returns - -- -- after having received an character on the input - - -- Put ("Input -> "); - -- Get_Immediate (Input); - -- New_Line; - -- Put_Line ("Character read: " & Input); - - -- -- Example with the second type of Get_Immediate - -- -- This is equivalent to a non blocking read - - -- for J in 1 .. 10 loop - -- Put ("Input -> "); - -- Get_Immediate (Input, Available); - -- New_Line; - - -- if Available = True then - -- Put_Line ("Character read: " & Input); - -- end if; - - -- delay 1.0; - -- end loop; - - -- Disable_Get_Immediate (C_Stream (Current_Input), Success); - - -- if Success = False then - -- raise Device_Error; - -- end if; - - -- exception - -- when Device_Error => - -- Put_Line ("Device Error. Check your configuration"); - -- end Example_IO; - - procedure Enable_Get_Immediate - (File : Interfaces.C_Streams.FILEs; - Success : out Boolean); - -- On VxWorks, a call to this procedure is required before subsequent calls - -- to Get_Immediate have the desired effect of not waiting for a line - -- return. The reason that this call is not automatic on this target is - -- that the call flushes the input buffer, discarding any previous input. - -- Note: Following a call to Enable_Get_Immediate, the only permitted - -- operations on the relevant file are Get_Immediate operations. Any - -- other operations have undefined behavior. - - procedure Disable_Get_Immediate - (File : Interfaces.C_Streams.FILEs; - Success : out Boolean); - -- This procedure resets File to standard mode, and permits subsequent - -- use of the full range of Ada.Text_IO functions - -end Interfaces.VxWorks.IO; |