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Try again if write(2) reports an recoverable error.

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This should fix mysteriously crashing boost regression tests when stderr is
managed by bjam (PR7043).

llvm-svn: 103085
This commit is contained in:
Benjamin Kramer 2010-05-05 15:17:47 +00:00
parent 7e52958e05
commit 8712466dd6
1 changed files with 6 additions and 1 deletions
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7
lib/Support/raw_ostream.cpp
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@ -21,6 +21,7 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/ADT/STLExtras.h"
#include <cctype>
#include <cerrno>
#include <sys/stat.h>
#include <sys/types.h>
@ -420,7 +421,11 @@ raw_fd_ostream::~raw_fd_ostream() {
void raw_fd_ostream::write_impl(const char *Ptr, size_t Size) {
assert(FD >= 0 && "File already closed.");
pos += Size;
if (::write(FD, Ptr, Size) != (ssize_t) Size)
ssize_t ret;
do {
ret = ::write(FD, Ptr, Size);
} while (ret < 0 && (errno == EAGAIN || errno == EINTR));
if (ret != (ssize_t) Size)
error_detected();
}