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Diffstat (limited to 'gcc-4.2.1/gcc/ada/g-locfil.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/g-locfil.adb | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/gcc-4.2.1/gcc/ada/g-locfil.adb b/gcc-4.2.1/gcc/ada/g-locfil.adb deleted file mode 100644 index cfd8c3383..000000000 --- a/gcc-4.2.1/gcc/ada/g-locfil.adb +++ /dev/null @@ -1,136 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- G N A T . L O C K _ F I L E S -- --- -- --- B o d y -- --- -- --- Copyright (C) 1998-2001 Free Software Foundation, 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, 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. -- --- -- ------------------------------------------------------------------------------- - -with System; - -package body GNAT.Lock_Files is - - Dir_Separator : Character; - pragma Import (C, Dir_Separator, "__gnat_dir_separator"); - - --------------- - -- Lock_File -- - --------------- - - procedure Lock_File - (Directory : Path_Name; - Lock_File_Name : Path_Name; - Wait : Duration := 1.0; - Retries : Natural := Natural'Last) - is - Dir : aliased String := Directory & ASCII.NUL; - File : aliased String := Lock_File_Name & ASCII.NUL; - - function Try_Lock (Dir, File : System.Address) return Integer; - pragma Import (C, Try_Lock, "__gnat_try_lock"); - - begin - -- If a directory separator was provided, just remove the one we have - -- added above. - - if Directory (Directory'Last) = Dir_Separator - or else Directory (Directory'Last) = '/' - then - Dir (Dir'Last - 1) := ASCII.Nul; - end if; - - -- Try to lock the file Retries times - - for I in 0 .. Retries loop - if Try_Lock (Dir'Address, File'Address) = 1 then - return; - end if; - - exit when I = Retries; - delay Wait; - end loop; - - raise Lock_Error; - end Lock_File; - - --------------- - -- Lock_File -- - --------------- - - procedure Lock_File - (Lock_File_Name : Path_Name; - Wait : Duration := 1.0; - Retries : Natural := Natural'Last) - is - begin - for J in reverse Lock_File_Name'Range loop - if Lock_File_Name (J) = Dir_Separator - or else Lock_File_Name (J) = '/' - then - Lock_File - (Lock_File_Name (Lock_File_Name'First .. J - 1), - Lock_File_Name (J + 1 .. Lock_File_Name'Last), - Wait, - Retries); - return; - end if; - end loop; - - Lock_File (".", Lock_File_Name, Wait, Retries); - end Lock_File; - - ----------------- - -- Unlock_File -- - ----------------- - - procedure Unlock_File (Lock_File_Name : Path_Name) is - S : aliased String := Lock_File_Name & ASCII.NUL; - - procedure unlink (A : System.Address); - pragma Import (C, unlink, "unlink"); - - begin - unlink (S'Address); - end Unlock_File; - - ----------------- - -- Unlock_File -- - ----------------- - - procedure Unlock_File (Directory : Path_Name; Lock_File_Name : Path_Name) is - begin - if Directory (Directory'Last) = Dir_Separator - or else Directory (Directory'Last) = '/' - then - Unlock_File (Directory & Lock_File_Name); - else - Unlock_File (Directory & Dir_Separator & Lock_File_Name); - end if; - end Unlock_File; - -end GNAT.Lock_Files; |