v29.4-roots.4 · Commit 1: [PATCH 01/37] build: port platform and dependency support
cmake/iopriority.cmake
Before: /dev/null · After: cmake/iopriority.cmake
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cmake/iopriority.cmake
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# Copyright (c) 2025-present The Bitcoin Roots developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or https://opensource.org/license/mit/.
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include(CheckCXXSourceCompiles)
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check_cxx_source_compiles([[
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#include <sys/resource.h>
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int main()
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{
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int x = getiopolicy_np(IOPOL_TYPE_DISK, IOPOL_SCOPE_THREAD);
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setiopolicy_np(IOPOL_TYPE_DISK, IOPOL_SCOPE_THREAD, x);
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return x;
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}
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]] HAVE_IOPOLICY
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)
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check_cxx_source_compiles([[
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#define _GNU_SOURCE
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#include <unistd.h>
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#include <sys/syscall.h>
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int main()
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{
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int x = syscall(SYS_ioprio_get, 1, 0);
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syscall(SYS_ioprio_set, 1, 0, x);
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return x;
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}
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]] HAVE_IOPRIO_SYSCALL
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)
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check_cxx_source_compiles([[
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#define _WIN32_WINNT 0x0601
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#include <windows.h>
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#include <io.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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int main()
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{
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FILE_IO_PRIORITY_HINT_INFO priorityHint = {
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.PriorityHint = IoPriorityHintLow,
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};
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FILE * const F = fopen("test", "r");
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intptr_t osfhandle = _get_osfhandle(_fileno(F));
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if (osfhandle == (intptr_t)INVALID_HANDLE_VALUE) osfhandle = 0;
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HANDLE hFile = (HANDLE)osfhandle;
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bool rv = SetFileInformationByHandle(hFile, FileIoPriorityHintInfo, &priorityHint, sizeof(priorityHint));
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return rv;
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}
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]] HAVE_WINDOWS_IOPRIO
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)
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