forked from bartvdbraak/blender
efb86b712d
It merely uses the new thread-safe iterators system of mempool, quite straight forward. Note that to avoid possible confusion with two void pointers as parameters of the callback, a dummy opaque struct pointer is used instead for the second parameter (pointer generated by iteration over mempool), callback functions must explicitely convert it to expected real type. Also added a basic gtest for this new feature.
77 lines
1.6 KiB
C++
77 lines
1.6 KiB
C++
/* Apache License, Version 2.0 */
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#include "testing/testing.h"
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#include <string.h>
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#include "atomic_ops.h"
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extern "C" {
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#include "BLI_mempool.h"
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#include "BLI_task.h"
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#include "BLI_utildefines.h"
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};
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#define NUM_ITEMS 10000
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static void task_mempool_iter_func(void *userdata, MempoolIterData *item) {
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int *data = (int *)item;
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int *count = (int *)userdata;
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EXPECT_TRUE(data != NULL);
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*data += 1;
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atomic_sub_and_fetch_uint32((uint32_t *)count, 1);
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}
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TEST(task, MempoolIter)
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{
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int *data[NUM_ITEMS];
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BLI_mempool *mempool = BLI_mempool_create(sizeof(*data[0]), NUM_ITEMS, 32, BLI_MEMPOOL_ALLOW_ITER);
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int i;
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/* 'Randomly' add and remove some items from mempool, to create a non-homogenous one. */
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int num_items = 0;
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for (i = 0; i < NUM_ITEMS; i++) {
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data[i] = (int *)BLI_mempool_alloc(mempool);
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*data[i] = i - 1;
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num_items++;
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}
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for (i = 0; i < NUM_ITEMS; i += 3) {
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BLI_mempool_free(mempool, data[i]);
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data[i] = NULL;
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num_items--;
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}
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for (i = 0; i < NUM_ITEMS; i += 7) {
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if (data[i] == NULL) {
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data[i] = (int *)BLI_mempool_alloc(mempool);
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*data[i] = i - 1;
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num_items++;
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}
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}
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for (i = 0; i < NUM_ITEMS - 5; i += 23) {
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for (int j = 0; j < 5; j++) {
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if (data[i + j] != NULL) {
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BLI_mempool_free(mempool, data[i + j]);
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data[i + j] = NULL;
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num_items--;
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}
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}
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}
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BLI_task_parallel_mempool(mempool, &num_items, task_mempool_iter_func, true);
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/* Those checks should ensure us all items of the mempool were processed once, and only once - as expected. */
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EXPECT_EQ(num_items, 0);
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for (i = 0; i < NUM_ITEMS; i++) {
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if (data[i] != NULL) {
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EXPECT_EQ(*data[i], i);
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}
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}
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BLI_mempool_destroy(mempool);
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}
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