Mercurial > octave-nkf
view liboctave/util/oct-mutex.h @ 20651:e54ecb33727e
lo-array-gripes.cc: Remove FIXME's related to buffer size.
* lo-array-gripes.cc: Remove FIXME's related to buffer size. Shorten sprintf
buffers from 100 to 64 characters (still well more than 19 required).
Use 'const' decorator on constant value for clarity. Remove extra space
between variable and array bracket.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 12 Oct 2015 21:13:47 -0700 |
parents | 4197fc428c7d |
children |
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/* Copyright (C) 2008-2015 Michael Goffioul This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if !defined (octave_oct_mutex_h) #define octave_oct_mutex_h 1 #include "oct-refcount.h" class octave_mutex; class octave_base_mutex { public: friend class octave_mutex; octave_base_mutex (void) : count (1) { } virtual ~octave_base_mutex (void) { } virtual void lock (void); virtual void unlock (void); virtual bool try_lock (void); private: octave_refcount<int> count; }; class OCTAVE_API octave_mutex { public: octave_mutex (void); octave_mutex (const octave_mutex& m) : rep (m.rep) { rep->count++; } ~octave_mutex (void) { if (--rep->count == 0) delete rep; } octave_mutex& operator = (const octave_mutex& m) { if (rep != m.rep) { if (--rep->count == 0) delete rep; rep = m.rep; rep->count++; } return *this; } void lock (void) { rep->lock (); } void unlock (void) { rep->unlock (); } bool try_lock (void) { return rep->try_lock (); } protected: octave_base_mutex *rep; }; class octave_autolock { public: octave_autolock (const octave_mutex& m, bool block = true) : mutex (m), lock_result (false) { if (block) { mutex.lock (); lock_result = true; } else lock_result = mutex.try_lock (); } ~octave_autolock (void) { if (lock_result) mutex.unlock (); } bool ok (void) const { return lock_result; } operator bool (void) const { return ok (); } private: // No copying or default constructor! octave_autolock (void); octave_autolock (const octave_autolock&); octave_autolock& operator = (const octave_autolock&); private: octave_mutex mutex; bool lock_result; }; class OCTAVE_API octave_thread { public: static void init (void); static bool is_octave_thread (void); }; #endif