+#define PUT_SUBBUF_OK 1
+#define PUT_SUBBUF_DIED 0
+#define PUT_SUBBUF_PUSHED 2
+
+int test_sigpipe(void)
+{
+ sigset_t sigset;
+ int result;
+
+ result = sigemptyset(&sigset);
+ if(result == -1) {
+ perror("sigemptyset");
+ return -1;
+ }
+ result = sigaddset(&sigset, SIGPIPE);
+ if(result == -1) {
+ perror("sigaddset");
+ return -1;
+ }
+
+ result = sigtimedwait(&sigset, NULL, &(struct timespec){0,0});
+ if(result == -1 && errno == EAGAIN) {
+ /* no signal received */
+ return 0;
+ }
+ else if(result == -1) {
+ perror("sigtimedwait");
+ return -1;
+ }
+ else if(result == SIGPIPE) {
+ /* received sigpipe */
+ return 1;
+ }
+ else {
+ assert(0);
+ }
+}
+