Caio Oliveira
89afcc94ea
The default value remains 2048, which is also used for rounding up any user provided size. The option is useful in cases where there's a better idea of the amount of data that's going to be used. Reviewed-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25279>
92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
/*
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* Copyright © 2023 Intel Corporation.
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* SPDX-License-Identifier: MIT
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*/
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#include <gtest/gtest.h>
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#include "util/ralloc.h"
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TEST(LinearAlloc, Basic)
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{
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void *ctx = ralloc_context(NULL);
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linear_ctx *lin_ctx = linear_context(ctx);
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for (unsigned i = 0; i < 1024; i++) {
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linear_alloc_child(lin_ctx, i * 4);
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}
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ralloc_free(ctx);
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}
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TEST(LinearAlloc, RallocParent)
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{
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void *ctx = ralloc_context(NULL);
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linear_ctx *lin_ctx = linear_context(ctx);
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EXPECT_EQ(ralloc_parent_of_linear_context(lin_ctx), ctx);
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ralloc_free(ctx);
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}
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TEST(LinearAlloc, StrCat)
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{
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void *ctx = ralloc_context(NULL);
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linear_ctx *lin_ctx = linear_context(ctx);
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char *s = linear_strdup(lin_ctx, "hello,");
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bool ok = linear_strcat(lin_ctx, &s, " triangle");
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EXPECT_TRUE(ok);
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EXPECT_STREQ(s, "hello, triangle");
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ralloc_free(ctx);
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}
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TEST(LinearAlloc, RewriteTail)
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{
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void *ctx = ralloc_context(NULL);
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linear_ctx *lin_ctx = linear_context(ctx);
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char *s = linear_strdup(lin_ctx, "hello, world");
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size_t start = 7;
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bool ok = linear_asprintf_rewrite_tail(lin_ctx, &s, &start, "%s", "triangle");
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EXPECT_TRUE(ok);
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EXPECT_STREQ(s, "hello, triangle");
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EXPECT_EQ(start, 7 + 8);
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ralloc_free(ctx);
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}
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TEST(LinearAlloc, AvoidWasteAfterLargeAlloc)
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{
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void *ctx = ralloc_context(NULL);
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linear_ctx *lin_ctx = linear_context(ctx);
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char *first = (char *) linear_alloc_child(lin_ctx, 32);
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/* Large allocation that would force a larger buffer. */
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linear_alloc_child(lin_ctx, 1024 * 16);
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char *second = (char *) linear_alloc_child(lin_ctx, 32);
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EXPECT_EQ(second - first, 32);
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ralloc_free(ctx);
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}
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TEST(LinearAlloc, Options)
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{
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void *ctx = ralloc_context(NULL);
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linear_opts opts = {};
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opts.min_buffer_size = 8192;
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linear_ctx *lin_ctx = linear_context_with_opts(ctx, &opts);
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/* Assert allocations spanning the first 8192 bytes are contiguous. */
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char *first = (char *)linear_alloc_child(lin_ctx, 1024);
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for (int i = 1; i < 8; i++) {
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char *ptr = (char *)linear_alloc_child(lin_ctx, 1024);
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EXPECT_EQ(ptr - first, 1024 * i);
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}
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ralloc_free(ctx);
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}
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