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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- The thread state.                     pub_tool_threadstate.h ---*/
      4 /*--------------------------------------------------------------------*/
      5 
      6 /*
      7    This file is part of Valgrind, a dynamic binary instrumentation
      8    framework.
      9 
     10    Copyright (C) 2000-2013 Julian Seward
     11       jseward (at) acm.org
     12 
     13    This program is free software; you can redistribute it and/or
     14    modify it under the terms of the GNU General Public License as
     15    published by the Free Software Foundation; either version 2 of the
     16    License, or (at your option) any later version.
     17 
     18    This program is distributed in the hope that it will be useful, but
     19    WITHOUT ANY WARRANTY; without even the implied warranty of
     20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     21    General Public License for more details.
     22 
     23    You should have received a copy of the GNU General Public License
     24    along with this program; if not, write to the Free Software
     25    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     26    02111-1307, USA.
     27 
     28    The GNU General Public License is contained in the file COPYING.
     29 */
     30 
     31 #ifndef __PUB_TOOL_THREADSTATE_H
     32 #define __PUB_TOOL_THREADSTATE_H
     33 
     34 #include "pub_tool_basics.h"   // ThreadID
     35 
     36 /* The maximum number of pthreads that we support.  This is
     37    deliberately not very high since our implementation of some of the
     38    scheduler algorithms is surely O(N) in the number of threads, since
     39    that's simple, at least.  And (in practice) we hope that most
     40    programs do not need many threads. */
     41 #define VG_N_THREADS 500
     42 
     43 /* Special magic value for an invalid ThreadId.  It corresponds to
     44    LinuxThreads using zero as the initial value for
     45    pthread_mutex_t.__m_owner and pthread_cond_t.__c_waiting. */
     46 #define VG_INVALID_THREADID ((ThreadId)(0))
     47 
     48 /* Get the TID of the thread which currently has the CPU. */
     49 extern ThreadId VG_(get_running_tid) ( void );
     50 
     51 #endif   // __PUB_TOOL_THREADSTATE_H
     52 
     53 /*--------------------------------------------------------------------*/
     54 /*--- end                                                          ---*/
     55 /*--------------------------------------------------------------------*/
     56