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io/FileOutputStream: use fsync() if fdatasync() is unavailable

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Fixes the macOS build which apparently doesn't implement the POSIX
function fdatasync().
This commit is contained in:
Max Kellermann 2022-07-14 18:31:58 +02:00
parent bc7fdba36d
commit 150e8f78bf
1 changed files with 6 additions and 1 deletions
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7
src/io/FileOutputStream.cxx
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@ -252,7 +252,12 @@ FileOutputStream::Sync()
{ {
assert(IsDefined()); assert(IsDefined());
if (fdatasync(fd.Get()) < 0) #ifdef __linux__
const bool success = fdatasync(fd.Get()) == 0;
#else
const bool success = fsync(fd.Get()) == 0;
#endif
if (!success)
throw FormatErrno("Failed to sync %s", GetPath().c_str()); throw FormatErrno("Failed to sync %s", GetPath().c_str());
} }