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Detect write failures on raw_fd_ostream.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75758 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-07-15 08:11:46 +00:00
parent ab52ae8388
commit 579fb87ce7
1 changed files with 4 additions and 2 deletions
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6
lib/Support/raw_ostream.cpp
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@ -18,6 +18,7 @@
#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/SmallVector.h"
#include "llvm/Config/config.h" #include "llvm/Config/config.h"
#include "llvm/Support/Compiler.h" #include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include <ostream> #include <ostream>
#if defined(HAVE_UNISTD_H) #if defined(HAVE_UNISTD_H)
@ -285,7 +286,8 @@ raw_fd_ostream::~raw_fd_ostream() {
void raw_fd_ostream::write_impl(const char *Ptr, unsigned Size) { void raw_fd_ostream::write_impl(const char *Ptr, unsigned Size) {
assert (FD >= 0 && "File already closed."); assert (FD >= 0 && "File already closed.");
pos += Size; 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() { void raw_fd_ostream::close() {
@ -298,7 +300,7 @@ void raw_fd_ostream::close() {
uint64_t raw_fd_ostream::seek(uint64_t off) { uint64_t raw_fd_ostream::seek(uint64_t off) {
flush(); flush();
pos = lseek(FD, off, SEEK_SET); pos = ::lseek(FD, off, SEEK_SET);
return pos; return pos;
} }