mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
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/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2025 PipeWire authors */
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/* SPDX-License-Identifier: MIT */
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#include <unistd.h>
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#include <pipewire/mem.h>
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#include <spa/buffer/buffer.h>
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#include "pwtest.h"
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PWTEST(mempool_issue4884)
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{
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/*
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* See https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/4884. This
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* test checks if the offset is correctly applied when a mapping is reused.
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*/
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long page_size = sysconf(_SC_PAGESIZE);
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pwtest_errno_ok(page_size);
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pwtest_int_ge(page_size, 8);
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struct pw_mempool *p = pw_mempool_new(NULL);
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pwtest_ptr_notnull(p);
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struct pw_memblock *b = pw_mempool_alloc(p, PW_MEMBLOCK_FLAG_READWRITE, SPA_DATA_MemFd, 2 * page_size);
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pwtest_ptr_notnull(b);
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struct pw_memmap *m1 = pw_mempool_map_id(p, b->id, PW_MEMMAP_FLAG_READWRITE, page_size / 2, page_size, NULL);
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pwtest_ptr_notnull(m1);
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pwtest_ptr_eq(m1->block, b);
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struct pw_memmap *m2 = pw_mempool_map_id(p, b->id, PW_MEMMAP_FLAG_READWRITE, 3 * page_size / 2, page_size / 2, NULL);
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pwtest_ptr_notnull(m2);
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pwtest_ptr_eq(m2->block, b);
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pwtest_int_eq(SPA_PTRDIFF(m2->ptr, m1->ptr), page_size);
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pw_mempool_destroy(p);
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return PWTEST_PASS;
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}
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PWTEST_SUITE(pw_mempool)
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{
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pwtest_add(mempool_issue4884, PWTEST_NOARG);
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return PWTEST_PASS;
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}
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