| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| -- -- |
| -- S Y S T E M . O S _ L O C K S -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2024-2025, 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 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 Solaris (native) version of this package |
| |
| with Ada.Unchecked_Conversion; |
| with Interfaces.C; |
| |
| package System.OS_Locks is |
| pragma Preelaborate; |
| |
| type mutex_t is limited private; |
| |
| type Private_Task_Serial_Number is mod 2 ** Long_Long_Integer'Size; |
| -- Used to give each task a unique serial number |
| |
| type Owner_ID is access all Integer; |
| |
| function To_Owner_ID is |
| new Ada.Unchecked_Conversion (System.Address, Owner_ID); |
| |
| type RTS_Lock; |
| type RTS_Lock_Ptr is access all RTS_Lock; |
| |
| type RTS_Lock is record |
| L : aliased mutex_t; |
| Ceiling : System.Any_Priority := System.Any_Priority'First; |
| Saved_Priority : System.Any_Priority := System.Any_Priority'First; |
| Owner : Owner_ID; |
| Next : RTS_Lock_Ptr; |
| Level : Private_Task_Serial_Number := 0; |
| Buddy : Owner_ID; |
| Frozen : Boolean := False; |
| end record; |
| |
| private |
| |
| type array_type_9 is array (0 .. 3) of Interfaces.C.unsigned_char; |
| type record_type_3 is record |
| flag : array_type_9; |
| Xtype : Interfaces.C.unsigned_long; |
| end record; |
| pragma Convention (C, record_type_3); |
| |
| type upad64_t is new Interfaces.Unsigned_64; |
| |
| type mutex_t is record |
| flags : record_type_3; |
| lock : upad64_t; |
| data : upad64_t; |
| end record; |
| pragma Convention (C, mutex_t); |
| |
| end System.OS_Locks; |
