1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Private scheduler header. priv_sema.h ---*/ 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is part of Valgrind, a dynamic binary instrumentation 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown framework. 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 10436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov Copyright (C) 2000-2013 Julian Seward 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@acm.org 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is free software; you can redistribute it and/or 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modify it under the terms of the GNU General Public License as 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown published by the Free Software Foundation; either version 2 of the 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown License, or (at your option) any later version. 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is distributed in the hope that it will be useful, but 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WITHOUT ANY WARRANTY; without even the implied warranty of 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown General Public License for more details. 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown You should have received a copy of the GNU General Public License 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown along with this program; if not, write to the Free Software 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 02111-1307, USA. 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The GNU General Public License is contained in the file COPYING. 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef __PRIV_SEMA_H 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define __PRIV_SEMA_H 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 34436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov#include "pub_core_basics.h" // Bool 35436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Not really a semaphore, but use a pipe for a token-passing scheme */ 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef struct { 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int pipe[2]; 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int owner_lwpid; /* who currently has it */ 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool held_as_LL; /* if held, True == held by a _LL call */ 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} vg_sema_t; 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Nb: this may be OS-specific, but let's not factor it out until we 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// implement an OS port for which this isn't ok. 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid ML_(sema_init) ( vg_sema_t *sema ); 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid ML_(sema_deinit) ( vg_sema_t *sema ); 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid ML_(sema_down) ( vg_sema_t *sema, Bool as_LL ); 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid ML_(sema_up) ( vg_sema_t *sema, Bool as_LL ); 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif // __PRIV_SEMA_H 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end ---*/ 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 56