Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnarl/g-semaph.adb @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT LIBRARY COMPONENTS -- | |
| 4 -- -- | |
| 5 -- G N A T . S E M A P H O R E S -- | |
| 6 -- -- | |
| 7 -- B o d y -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 2003-2017, AdaCore -- | |
| 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 -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 28 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- | |
| 29 -- -- | |
| 30 ------------------------------------------------------------------------------ | |
| 31 | |
| 32 package body GNAT.Semaphores is | |
| 33 | |
| 34 ------------------------ | |
| 35 -- Counting_Semaphore -- | |
| 36 ------------------------ | |
| 37 | |
| 38 protected body Counting_Semaphore is | |
| 39 | |
| 40 ----------- | |
| 41 -- Seize -- | |
| 42 ----------- | |
| 43 | |
| 44 entry Seize when Count > 0 is | |
| 45 begin | |
| 46 Count := Count - 1; | |
| 47 end Seize; | |
| 48 | |
| 49 ------------- | |
| 50 -- Release -- | |
| 51 ------------- | |
| 52 | |
| 53 procedure Release is | |
| 54 begin | |
| 55 Count := Count + 1; | |
| 56 end Release; | |
| 57 end Counting_Semaphore; | |
| 58 | |
| 59 ---------------------- | |
| 60 -- Binary_Semaphore -- | |
| 61 ---------------------- | |
| 62 | |
| 63 protected body Binary_Semaphore is | |
| 64 | |
| 65 ----------- | |
| 66 -- Seize -- | |
| 67 ----------- | |
| 68 | |
| 69 entry Seize when Available is | |
| 70 begin | |
| 71 Available := False; | |
| 72 end Seize; | |
| 73 | |
| 74 ------------- | |
| 75 -- Release -- | |
| 76 ------------- | |
| 77 | |
| 78 procedure Release is | |
| 79 begin | |
| 80 Available := True; | |
| 81 end Release; | |
| 82 end Binary_Semaphore; | |
| 83 | |
| 84 end GNAT.Semaphores; |