Mercurial > octave-nkf
view liboctave/util/oct-mutex.cc @ 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/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "oct-mutex.h" #include "lo-error.h" #if defined (__WIN32__) && ! defined (__CYGWIN__) #include <windows.h> #elif defined (HAVE_PTHREAD_H) #include <pthread.h> #endif void octave_base_mutex::lock (void) { (*current_liboctave_error_handler) ("mutex not supported on this platform"); } void octave_base_mutex::unlock (void) { (*current_liboctave_error_handler) ("mutex not supported on this platform"); } bool octave_base_mutex::try_lock (void) { (*current_liboctave_error_handler) ("mutex not supported on this platform"); return false; } #if defined (__WIN32__) && ! defined (__CYGWIN__) class octave_w32_mutex : public octave_base_mutex { public: octave_w32_mutex (void) : octave_base_mutex () { InitializeCriticalSection (&cs); } ~octave_w32_mutex (void) { DeleteCriticalSection (&cs); } void lock (void) { EnterCriticalSection (&cs); } void unlock (void) { LeaveCriticalSection (&cs); } bool try_lock (void) { return (TryEnterCriticalSection (&cs) != 0); } private: CRITICAL_SECTION cs; }; static DWORD octave_thread_id = 0; void octave_thread::init (void) { octave_thread_id = GetCurrentThreadId (); } bool octave_thread::is_octave_thread (void) { return (GetCurrentThreadId () == octave_thread_id); } #elif defined (HAVE_PTHREAD_H) class octave_pthread_mutex : public octave_base_mutex { public: octave_pthread_mutex (void) : octave_base_mutex (), pm () { pthread_mutexattr_t attr; pthread_mutexattr_init (&attr); pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE); pthread_mutex_init (&pm, &attr); pthread_mutexattr_destroy (&attr); } ~octave_pthread_mutex (void) { pthread_mutex_destroy (&pm); } void lock (void) { pthread_mutex_lock (&pm); } void unlock (void) { pthread_mutex_unlock (&pm); } bool try_lock (void) { return (pthread_mutex_trylock (&pm) == 0); } private: pthread_mutex_t pm; }; static pthread_t octave_thread_id = 0; void octave_thread::init (void) { octave_thread_id = pthread_self (); } bool octave_thread::is_octave_thread (void) { return (pthread_equal (octave_thread_id, pthread_self ()) != 0); } #endif static octave_base_mutex * init_rep (void) { #if defined (__WIN32__) && ! defined (__CYGWIN__) return new octave_w32_mutex (); #elif defined (HAVE_PTHREAD_H) return new octave_pthread_mutex (); #else return new octave_base_mutex (); #endif } octave_mutex::octave_mutex (void) : rep (init_rep ()) { }