From e076257b8cfe4c34e62d13d2b3c342509fb830b5 Mon Sep 17 00:00:00 2001 From: Ted Kremenek <kremenek@apple.com> Date: Wed, 26 Nov 2008 03:33:13 +0000 Subject: [PATCH] Add 'tell' method to raw_fd_ostream that clients can use to query the current location in the file the stream is writing to. llvm-svn: 60085 --- llvm/include/llvm/Support/raw_ostream.h | 5 ++++- llvm/lib/Support/raw_ostream.cpp | 8 ++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/llvm/include/llvm/Support/raw_ostream.h b/llvm/include/llvm/Support/raw_ostream.h index 709a063e2aea..2b4b17d7b297 100644 --- a/llvm/include/llvm/Support/raw_ostream.h +++ b/llvm/include/llvm/Support/raw_ostream.h @@ -175,7 +175,10 @@ public: virtual void flush_impl(); /// close - Manually flush the stream and close the file. - void close(); + void close(); + + /// tell - Return the current offset with the file. + uint64_t tell(); }; /// raw_stdout_ostream - This is a stream that always prints to stdout. diff --git a/llvm/lib/Support/raw_ostream.cpp b/llvm/lib/Support/raw_ostream.cpp index a8e6c782bc97..b10677e3f271 100644 --- a/llvm/lib/Support/raw_ostream.cpp +++ b/llvm/lib/Support/raw_ostream.cpp @@ -253,6 +253,14 @@ void raw_fd_ostream::close() { FD = -1; } +uint64_t raw_fd_ostream::tell() { + // We have to take into account the bytes waiting in the buffer. For now + // we do the easy thing and just flush the buffer before getting the + // current file offset. + flush(); + return (uint64_t) lseek(FD, 0, SEEK_CUR); +} + //===----------------------------------------------------------------------===// // raw_stdout/err_ostream //===----------------------------------------------------------------------===//