Mercurial > octave-dspies
view liboctave/util/oct-mutex.cc @ 19010:3fb030666878 draft default tip dspies
Added special-case logical-indexing function
* logical-index.h (New file) : Logical-indexing function. May be called on
octave_value types via call_bool_index
* nz-iterators.h : Add base-class nz_iterator for iterator types. Array has
template bool for whether to internally store row-col or compute on the fly
Add skip_ahead method which skips forward to the next nonzero after its
argument
Add flat_index for computing octave_idx_type index of current position (with
assertion failure in the case of overflow)
Move is_zero to separate file
* ov-base-diag.cc, ov-base-mat.cc, ov-base-sparse.cc, ov-perm.cc
(do_index_op): Add call to call_bool_index in logical-index.h
* Array.h : Move forward-declaration for array_iterator to separate header file
* dim-vector.cc (dim_max): Refers to idx-bounds.h (max_idx)
* array-iter-decl.h (New file): Header file for forward declaration of
array-iterator
* direction.h : Add constants fdirc and bdirc to avoid having to reconstruct
them
* dv-utils.h, dv-utils.cc (New files) :
Utility functions for querying and constructing dim-vectors
* idx-bounds.h (New file) :
Utility constants and functions for determining whether things will overflow
the maximum allowed bounds
* interp-idx.h (New function : to_flat_idx) : Converts row-col pair to linear
index of octave_idx_type
* is-zero.h (New file) : Function for determining whether an element is zero
* logical-index.tst : Add tests for correct return-value dimensions and large
sparse matrix behavior
author | David Spies <dnspies@gmail.com> |
---|---|
date | Fri, 25 Jul 2014 13:39:31 -0600 |
parents | 49a5a4be04a1 |
children |
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/* Copyright (C) 2008-2013 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 ()) { }