include/pub_tool_threadstate.h

   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@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 /*--------------------------------------------------------------------*/