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-rw-r--r--newlib/libc/stdio/freopen.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/newlib/libc/stdio/freopen.c b/newlib/libc/stdio/freopen.c
index 172006259..6483655bf 100644
--- a/newlib/libc/stdio/freopen.c
+++ b/newlib/libc/stdio/freopen.c
@@ -100,11 +100,20 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
CHECK_INIT (ptr, fp);
+ /* We can't use the _newlib_flockfile_XXX macros here due to the
+ interlocked locking with the sfp_lock. */
+#if !defined (__SINGLE_THREAD__) && defined (_POSIX_THREADS)
+ int __oldcancel;
+ pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &__oldcancel);
+#endif
_flockfile (fp);
if ((flags = __sflags (ptr, mode, &oflags)) == 0)
{
_funlockfile (fp);
+#if !defined (__SINGLE_THREAD__) && defined (_POSIX_THREADS)
+ pthread_setcancelstate (__oldcancel, &__oldcancel);
+#endif
_fclose_r (ptr, fp);
return NULL;
}
@@ -213,6 +222,9 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
__lock_close_recursive (fp->_lock);
#endif
__sfp_lock_release ();
+#if !defined (__SINGLE_THREAD__) && defined (_POSIX_THREADS)
+ pthread_setcancelstate (__oldcancel, &__oldcancel);
+#endif
return NULL;
}
@@ -230,6 +242,9 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
#endif
_funlockfile (fp);
+#if !defined (__SINGLE_THREAD__) && defined (_POSIX_THREADS)
+ pthread_setcancelstate (__oldcancel, &__oldcancel);
+#endif
return fp;
}