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      1 /*
      2   This file is part of drd, a thread error detector.
      3 
      4   Copyright (C) 2006-2012 Bart Van Assche <bvanassche (at) acm.org>.
      5 
      6   This program is free software; you can redistribute it and/or
      7   modify it under the terms of the GNU General Public License as
      8   published by the Free Software Foundation; either version 2 of the
      9   License, or (at your option) any later version.
     10 
     11   This program is distributed in the hope that it will be useful, but
     12   WITHOUT ANY WARRANTY; without even the implied warranty of
     13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14   General Public License for more details.
     15 
     16   You should have received a copy of the GNU General Public License
     17   along with this program; if not, write to the Free Software
     18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     19   02111-1307, USA.
     20 
     21   The GNU General Public License is contained in the file COPYING.
     22 */
     23 
     24 
     25 // Semaphore state information: owner thread and recursion count.
     26 
     27 
     28 #ifndef __DRD_SEMAPHORE_H
     29 #define __DRD_SEMAPHORE_H
     30 
     31 
     32 #include "drd_thread.h"           // DrdThreadId
     33 #include "pub_tool_basics.h"      // Addr
     34 
     35 
     36 struct semaphore_info;
     37 
     38 
     39 void DRD_(semaphore_set_trace)(const Bool trace_semaphore);
     40 struct semaphore_info* DRD_(semaphore_init)(const Addr semaphore,
     41                                             const Word pshared,
     42                                             const UInt value);
     43 void DRD_(semaphore_destroy)(const Addr semaphore);
     44 struct semaphore_info* DRD_(semaphore_open)(const Addr semaphore,
     45                                             const Char* name, const Word oflag,
     46                                             const Word mode, const UInt value);
     47 void DRD_(semaphore_close)(const Addr semaphore);
     48 void DRD_(semaphore_pre_wait)(const Addr semaphore);
     49 void DRD_(semaphore_post_wait)(const DrdThreadId tid, const Addr semaphore,
     50                                const Bool waited);
     51 void DRD_(semaphore_pre_post)(const DrdThreadId tid, const Addr semaphore);
     52 void DRD_(semaphore_post_post)(const DrdThreadId tid, const Addr semaphore,
     53                                const Bool waited);
     54 ULong DRD_(get_semaphore_segment_creation_count)(void);
     55 
     56 
     57 #endif /* __DRD_SEMAPHORE_H */
     58