Detect write failures on raw_fd_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75758 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 23a756e..ef72501 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -18,6 +18,7 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/Config/config.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/Support/ErrorHandling.h"
#include <ostream>
#if defined(HAVE_UNISTD_H)
@@ -285,7 +286,8 @@
void raw_fd_ostream::write_impl(const char *Ptr, unsigned Size) {
assert (FD >= 0 && "File already closed.");
pos += Size;
- ::write(FD, Ptr, Size);
+ if (::write(FD, Ptr, Size) != (ssize_t) Size)
+ llvm_report_error("IO failure writing to output stream.");
}
void raw_fd_ostream::close() {
@@ -298,7 +300,7 @@
uint64_t raw_fd_ostream::seek(uint64_t off) {
flush();
- pos = lseek(FD, off, SEEK_SET);
+ pos = ::lseek(FD, off, SEEK_SET);
return pos;
}