It will be used in clang in a sec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234619
91177308-0d34-0410-b5e6-
96231b3b80d8
uint64_t pos;
+ bool SupportsSeeking;
+
/// See raw_ostream::write_impl.
void write_impl(const char *Ptr, size_t Size) override;
/// fsync.
void close();
+ bool supportsSeeking() { return SupportsSeeking; }
+
/// Flushes the stream and repositions the underlying file descriptor position
/// to the offset specified from the beginning of the file.
uint64_t seek(uint64_t off);
// Get the starting position.
off_t loc = ::lseek(FD, 0, SEEK_CUR);
- if (loc == (off_t)-1)
+ SupportsSeeking = loc != (off_t)-1;
+ if (!SupportsSeeking)
pos = 0;
else
pos = static_cast<uint64_t>(loc);