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Diffstat (limited to 'gcc-4.4.3/gcc/ada/s-tpopsp-posix-foreign.adb')
-rw-r--r-- | gcc-4.4.3/gcc/ada/s-tpopsp-posix-foreign.adb | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/gcc-4.4.3/gcc/ada/s-tpopsp-posix-foreign.adb b/gcc-4.4.3/gcc/ada/s-tpopsp-posix-foreign.adb deleted file mode 100644 index 910152ad7..000000000 --- a/gcc-4.4.3/gcc/ada/s-tpopsp-posix-foreign.adb +++ /dev/null @@ -1,106 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- SYSTEM.TASK_PRIMITIVES.OPERATIONS.SPECIFIC -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2009, 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 is a POSIX version of this package where foreign threads are --- recognized. - --- Currently, DEC Unix, SCO UnixWare, Solaris pthread, HPUX pthread and --- GNU/Linux threads use this version. - -separate (System.Task_Primitives.Operations) -package body Specific is - - ---------------- - -- Initialize -- - ---------------- - - procedure Initialize (Environment_Task : Task_Id) is - pragma Warnings (Off, Environment_Task); - Result : Interfaces.C.int; - - begin - Result := pthread_key_create (ATCB_Key'Access, null); - pragma Assert (Result = 0); - end Initialize; - - ------------------- - -- Is_Valid_Task -- - ------------------- - - function Is_Valid_Task return Boolean is - begin - return pthread_getspecific (ATCB_Key) /= System.Null_Address; - end Is_Valid_Task; - - --------- - -- Set -- - --------- - - procedure Set (Self_Id : Task_Id) is - Result : Interfaces.C.int; - begin - Result := pthread_setspecific (ATCB_Key, To_Address (Self_Id)); - pragma Assert (Result = 0); - end Set; - - ---------- - -- Self -- - ---------- - - -- To make Ada tasks and C threads interoperate better, we have added some - -- functionality to Self. Suppose a C main program (with threads) calls an - -- Ada procedure and the Ada procedure calls the tasking runtime system. - -- Eventually, a call will be made to self. Since the call is not coming - -- from an Ada task, there will be no corresponding ATCB. - - -- What we do in Self is to catch references that do not come from - -- recognized Ada tasks, and create an ATCB for the calling thread. - - -- The new ATCB will be "detached" from the normal Ada task master - -- hierarchy, much like the existing implicitly created signal-server - -- tasks. - - function Self return Task_Id is - Result : System.Address; - - begin - Result := pthread_getspecific (ATCB_Key); - - -- If the key value is Null, then it is a non-Ada task. - - if Result /= System.Null_Address then - return To_Task_Id (Result); - else - return Register_Foreign_Thread; - end if; - end Self; - -end Specific; |