gcc/ada/libgnarl/s-vxwext__vthreads.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                  GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                --
   4 --                                                                          --
   5 --                     S Y S T E M . V X W O R K S . E X T                  --
   6 --                                                                          --
   7 --                                   S p e c                                --
   8 --                                                                          --
   9 --            Copyright (C) 2008-2018, Free Software Foundation, Inc.       --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 ------------------------------------------------------------------------------
  28
  29 --  This package provides VxWorks specific support functions needed
  30 --  by System.OS_Interface.
  31
  32 --  This is the VxWorks 653 vThreads version of this package
  33
  34 with Interfaces.C;
  35
  36 package System.VxWorks.Ext is
  37    pragma Preelaborate;
  38
  39    subtype SEM_ID is Long_Integer;
  40    --  typedef struct semaphore *SEM_ID;
  41
  42    type sigset_t is mod 2 ** Interfaces.C.long'Size;
  43
  44    type t_id is new Long_Integer;
  45    subtype int is Interfaces.C.int;
  46    subtype unsigned is Interfaces.C.unsigned;
  47
  48    type Interrupt_Handler is access procedure (parameter : System.Address);
  49    pragma Convention (C, Interrupt_Handler);
  50
  51    type Interrupt_Vector is new System.Address;
  52    function Int_Lock return int;
  53    pragma Inline (Int_Lock);
  54
  55    function Int_Unlock (Old : int) return int;
  56    pragma Inline (Int_Unlock);
  57
  58    function Interrupt_Connect
  59      (Vector    : Interrupt_Vector;
  60       Handler   : Interrupt_Handler;
  61       Parameter : System.Address := System.Null_Address) return int;
  62    pragma Convention (C, Interrupt_Connect);
  63
  64    function Interrupt_Context return int;
  65    pragma Convention (C, Interrupt_Context);
  66
  67    function Interrupt_Number_To_Vector
  68      (intNum : int) return Interrupt_Vector;
  69    pragma Convention (C, Interrupt_Number_To_Vector);
  70
  71    function semDelete (Sem : SEM_ID) return int;
  72    pragma Convention (C, semDelete);
  73
  74    function Task_Cont (tid : t_id) return int;
  75    pragma Import (C, Task_Cont, "taskResume");
  76
  77    function Task_Stop (tid : t_id) return int;
  78    pragma Import (C, Task_Stop, "taskSuspend");
  79
  80    function kill (pid : t_id; sig : int) return int;
  81    pragma Import (C, kill, "kill");
  82
  83    function getpid return t_id;
  84    pragma Import (C, getpid, "taskIdSelf");
  85
  86    function Set_Time_Slice (ticks : int) return int;
  87    pragma Import (C, Set_Time_Slice, "kernelTimeSlice");
  88
  89    type UINT64 is mod 2 ** Long_Long_Integer'Size;
  90
  91    function tickGet return UINT64;
  92    --  "tickGet" not available for cert vThreads:
  93    pragma Import (C, tickGet, "tick64Get");
  94
  95    --------------------------------
  96    -- Processor Affinity for SMP --
  97    --------------------------------
  98
  99    function taskCpuAffinitySet (tid : t_id; CPU : int) return int;
 100    pragma Convention (C, taskCpuAffinitySet);
 101    --  For SMP run-times set the CPU affinity.
 102    --  For uniprocessor systems return ERROR status.
 103
 104    function taskMaskAffinitySet (tid : t_id; CPU_Set : unsigned) return int;
 105    pragma Convention (C, taskMaskAffinitySet);
 106    --  For SMP run-times set the CPU mask affinity.
 107    --  For uniprocessor systems return ERROR status.
 108
 109 end System.VxWorks.Ext;