Line data    Source code

       1             : /**
       2             :  * The MIT License (MIT)
       3             :  *
       4             :  * Copyright (c) 2021 RSK Labs Ltd
       5             :  *
       6             :  * Permission is hereby granted, free of charge, to any person obtaining a copy
       7             :  * of this software and associated documentation files (the "Software"), to
       8             :  * deal in the Software without restriction, including without limitation the
       9             :  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
      10             :  * sell copies of the Software, and to permit persons to whom the Software is
      11             :  * furnished to do so, subject to the following conditions:
      12             :  *
      13             :  * The above copyright notice and this permission notice shall be included in
      14             :  * all copies or substantial portions of the Software.
      15             :  *
      16             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      17             :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      18             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      19             :  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      20             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      21             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
      22             :  * IN THE SOFTWARE.
      23             :  */
      24             : 
      25             : #include "sync.h"
      26             : 
      27             : // Globals
      28             : static bool G_locked = false;
      29             : 
      30         320 : bool sync_try_aqcuire_lock() {
      31         320 :     if (G_locked)
      32         107 :         return false;
      33         213 :     G_locked = true;
      34         213 :     return true;
      35             : }
      36             : 
      37         217 : void sync_release_lock() {
      38         217 :     G_locked = false;
      39         217 : }