From cec47afae217cea36779d7dea4437b35dee63be2 Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Wed, 29 Sep 2010 17:49:49 -0400 Subject: Make parts of the progress API internal. --- libdimension/progress-impl.h | 54 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 libdimension/progress-impl.h (limited to 'libdimension/progress-impl.h') diff --git a/libdimension/progress-impl.h b/libdimension/progress-impl.h new file mode 100644 index 0000000..ef5ad42 --- /dev/null +++ b/libdimension/progress-impl.h @@ -0,0 +1,54 @@ +/************************************************************************* + * Copyright (C) 2010 Tavian Barnes * + * * + * This file is part of The Dimension Library. * + * * + * The Dimension Library is free software; you can redistribute it and/ * + * or modify it under the terms of the GNU Lesser General Public License * + * as published by the Free Software Foundation; either version 3 of the * + * License, or (at your option) any later version. * + * * + * The Dimension Library 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 * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this program. If not, see * + * . * + *************************************************************************/ + +#ifndef DIMENSION_IMPL_PROGRESS_H +#define DIMENSION_IMPL_PROGRESS_H + +/* Allocate a new progress object */ +dmnsn_progress *dmnsn_new_progress(void); + +/* Create a new level of loop nesting */ +void dmnsn_new_progress_element(dmnsn_progress *progress, unsigned int total); +/* Increment the progress counter; should only be called from innermost loop */ +void dmnsn_increment_progress(dmnsn_progress *progress); +/* Instantly complete the progress */ +void dmnsn_done_progress(dmnsn_progress *progress); + +struct dmnsn_progress { + /* Array of progress elements. Progress is given by P(0), where + P(i) = (elements[i].progress + P(i + 1))/elements[i].total. */ + dmnsn_array *elements; + + /* The worker thread */ + pthread_t thread; + + /* Read-write synchronization */ + pthread_rwlock_t *rwlock; + + /* Condition variable for waiting for a particular amount of progress */ + pthread_cond_t *cond; + pthread_mutex_t *mutex; + + /* Minimum waited-on value */ + volatile double min_wait; + volatile double *min_waitp; /* Hack for const values */ +}; + +#endif /* DIMENSION_IMPL_PROGRESS_H */ -- cgit v1.2.3