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43 lines
2.6 KiB
C
43 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/syscall_support-nt.internal.h"
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#include "libc/intrin/strace.internal.h"
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#include "libc/nt/files.h"
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__msabi extern typeof(FlushFileBuffers) *const __imp_FlushFileBuffers;
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/**
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* Flushes buffers of specified file to disk.
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*
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* This provides a stronger degree of assurance and blocking for things
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* to be sent to a physical medium, but it's not guaranteed unless your
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* file is opened in a direct non-caching mode. One main advantage here
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* seems to be coherency.
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*
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* @note this wrapper takes care of ABI, STRACE(), and __winerr()
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* @note consider buying a ups
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* @see FlushViewOfFile()
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*/
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textwindows bool32 FlushFileBuffers(int64_t hFile) {
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bool32 ok;
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ok = __imp_FlushFileBuffers(hFile);
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if (!ok) __winerr();
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NTTRACE("FlushFileBuffers(%ld) → %hhhd% m", hFile, ok);
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return ok;
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}
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