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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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5 -- A D A . S Y N C H R O N O U S _ B A R R I E R S --
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6 -- --
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7 -- S p e c --
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8 -- --
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145
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9 -- Copyright (C) 1992-2019, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- This specification is derived from the Ada Reference Manual for use with --
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12 -- GNAT. The copyright notice above, and the license provisions that follow --
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13 -- apply solely to the contents of the part following the private keyword. --
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14 -- --
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15 -- GNAT is free software; you can redistribute it and/or modify it under --
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16 -- terms of the GNU General Public License as published by the Free Soft- --
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17 -- ware Foundation; either version 3, or (at your option) any later ver- --
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18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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21 -- --
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22 -- As a special exception under Section 7 of GPL version 3, you are granted --
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23 -- additional permissions described in the GCC Runtime Library Exception, --
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24 -- version 3.1, as published by the Free Software Foundation. --
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25 -- --
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26 -- You should have received a copy of the GNU General Public License and --
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27 -- a copy of the GCC Runtime Library Exception along with this program; --
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28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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29 -- <http://www.gnu.org/licenses/>. --
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30 -- --
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31 -- GNAT was originally developed by the GNAT team at New York University. --
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32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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33 -- --
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34 ------------------------------------------------------------------------------
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35
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36 package Ada.Synchronous_Barriers is
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37 pragma Preelaborate (Synchronous_Barriers);
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38
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39 subtype Barrier_Limit is Positive range 1 .. Positive'Last;
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40
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41 type Synchronous_Barrier (Release_Threshold : Barrier_Limit) is
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42 limited private;
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43
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44 procedure Wait_For_Release
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45 (The_Barrier : in out Synchronous_Barrier;
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46 Notified : out Boolean);
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47
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48 private
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49 protected type Synchronous_Barrier (Release_Threshold : Barrier_Limit) is
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50 entry Wait (Notified : out Boolean);
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51 private
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52 Keep_Open : Boolean := False;
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53 end Synchronous_Barrier;
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54 end Ada.Synchronous_Barriers;
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