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Convert two uses if fstat with sys::fs::status.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186560 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -283,12 +283,11 @@ static bool shouldUseMmap(int FD,
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// FIXME: this chunk of code is duplicated, but it avoids a fstat when
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// RequiresNullTerminator = false and MapSize != -1.
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if (FileSize == size_t(-1)) {
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struct stat FileInfo;
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// TODO: This should use fstat64 when available.
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if (fstat(FD, &FileInfo) == -1) {
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return error_code(errno, posix_category());
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}
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FileSize = FileInfo.st_size;
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sys::fs::file_status Status;
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error_code EC = sys::fs::status(FD, Status);
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if (EC)
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return EC;
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FileSize = Status.getSize();
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}
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// If we need a null terminator and the end of the map is inside the file,
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@ -318,20 +317,20 @@ error_code MemoryBuffer::getOpenFile(int FD, const char *Filename,
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// If we don't know the file size, use fstat to find out. fstat on an open
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// file descriptor is cheaper than stat on a random path.
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if (FileSize == uint64_t(-1)) {
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struct stat FileInfo;
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// TODO: This should use fstat64 when available.
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if (fstat(FD, &FileInfo) == -1) {
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return error_code(errno, posix_category());
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}
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sys::fs::file_status Status;
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error_code EC = sys::fs::status(FD, Status);
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if (EC)
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return EC;
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// If this not a file or a block device (e.g. it's a named pipe
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// or character device), we can't trust the size. Create the memory
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// buffer by copying off the stream.
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if (!S_ISREG(FileInfo.st_mode) && !S_ISBLK(FileInfo.st_mode)) {
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sys::fs::file_type Type = Status.type();
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if (Type != sys::fs::file_type::regular_file &&
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Type != sys::fs::file_type::block_file)
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return getMemoryBufferForStream(FD, Filename, result);
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}
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FileSize = FileInfo.st_size;
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FileSize = Status.getSize();
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}
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MapSize = FileSize;
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}
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