/*
* (c) The GRASP/AQUA Project, Glasgow University, 1994-1998
*
- * $Id: openFile.c,v 1.17 2000/05/11 13:15:38 simonmar Exp $
+ * $Id: openFile.c,v 1.18 2000/05/15 09:20:11 simonmar Exp $
*
* openFile Runtime Support
*/
switch (how) {
case OPENFILE_APPEND:
- oflags = O_WRONLY | O_NOCTTY | O_APPEND;
+ oflags = O_NONBLOCK | O_WRONLY | O_NOCTTY | O_APPEND;
for_writing = 1;
flags |= FILEOBJ_WRITE;
break;
case OPENFILE_WRITE:
- oflags = O_WRONLY | O_NOCTTY;
+ oflags = O_NONBLOCK | O_WRONLY | O_NOCTTY;
flags |= FILEOBJ_WRITE;
for_writing = 1;
break;
case OPENFILE_READ_ONLY:
- oflags = O_RDONLY | O_NOCTTY;
+ oflags = O_NONBLOCK | O_RDONLY | O_NOCTTY;
flags |= FILEOBJ_READ;
for_writing = 0;
break;
case OPENFILE_READ_WRITE:
- oflags = O_RDWR | O_NOCTTY;
+ oflags = O_NONBLOCK | O_RDWR | O_NOCTTY;
flags |= FILEOBJ_READ | FILEOBJ_WRITE;
for_writing = 1;
break;
}
}
- /* Set non-blocking mode *after* the open. The reason is that
- * when reading from a FIFO, if we open in non-blocking mode
- * then any reads from the FIFO will return EOF straight away
- * without waiting for a writing process. If we set O_NONBLOCK
- * after doing the open, then we apparently get to wait for a
- * writer. This broken behaviour has been observed on both Linux
- * & Solaris. --SDM
- */
- fcntl(fd, F_SETFL, oflags | O_NONBLOCK);
-
/* Make sure that we aren't looking at a directory */
+
while (fstat(fd, &sb) < 0) {
/* highly unlikely */
if (errno != EINTR) {