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/*
* The MIT License
*
* Wavefront Alignment Algorithms
* Copyright (c) 2017 by Santiago Marco-Sola <santiagomsola@gmail.com>
*
* This file is part of Wavefront Alignment Algorithms.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* PROJECT: Wavefront Alignment Algorithms
* AUTHOR(S): Santiago Marco-Sola <santiagomsola@gmail.com>
* DESCRIPTION: WaveFront Slab for fast pre-allocated wavefronts' memory handling
*/
#ifndef WAVEFRONT_SLAB_H_
#define WAVEFRONT_SLAB_H_
#include "utils/vector.h"
#include "system/mm_allocator.h"
#include "wavefront.h"
/*
* Memory Manager for Wavefront
*/
typedef enum {
wf_slab_reuse = 1, // Keep all wavefronts (Reap only by demand)
wf_slab_tight = 2, // Reap all if wavefronts are resized
} wf_slab_mode_t;
typedef struct {
// Attributes
bool allocate_backtrace; // WFs require BT-vector
wf_slab_mode_t slab_mode; // Slab strategy
// Wavefront Slabs
int init_wf_length; // Initial wf-elements allocated
int current_wf_length; // Current wf-elements allocated
vector_t* wavefronts; // All wavefronts (wavefront_t*)
vector_t* wavefronts_free; // Free wavefronts (wavefront_t*)
// Stats
uint64_t memory_used; // Memory used (Bytes)
// MM
mm_allocator_t* mm_allocator; // MM-Allocator
} wavefront_slab_t;
/*
* Setup
*/
wavefront_slab_t* wavefront_slab_new(
const int init_wf_length,
const bool allocate_backtrace,
const wf_slab_mode_t slab_mode,
mm_allocator_t* const mm_allocator);
void wavefront_slab_reap(
wavefront_slab_t* const wavefront_slab);
void wavefront_slab_clear(
wavefront_slab_t* const wavefront_slab);
void wavefront_slab_delete(
wavefront_slab_t* const wavefront_slab);
/*
* Accessors
*/
void wavefront_slab_set_mode(
wavefront_slab_t* const wavefront_slab,
const wf_slab_mode_t slab_mode);
/*
* Allocator
*/
wavefront_t* wavefront_slab_allocate(
wavefront_slab_t* const wavefront_slab,
const int min_lo,
const int max_hi);
void wavefront_slab_free(
wavefront_slab_t* const wavefront_slab,
wavefront_t* const wavefront);
/*
* Utils
*/
uint64_t wavefront_slab_get_size(
wavefront_slab_t* const wavefront_slab);
#endif /* WAVEFRONT_SLAB_H_ */
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